17c478bd9Sstevel@tonic-gate /* 27c478bd9Sstevel@tonic-gate * CDDL HEADER START 37c478bd9Sstevel@tonic-gate * 47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5055e805aSedp * Common Development and Distribution License (the "License"). 6055e805aSedp * You may not use this file except in compliance with the License. 77c478bd9Sstevel@tonic-gate * 87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 117c478bd9Sstevel@tonic-gate * and limitations under the License. 127c478bd9Sstevel@tonic-gate * 137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 187c478bd9Sstevel@tonic-gate * 197c478bd9Sstevel@tonic-gate * CDDL HEADER END 207c478bd9Sstevel@tonic-gate */ 21055e805aSedp 227c478bd9Sstevel@tonic-gate /* 23406fc510SToomas Soome * Copyright 2016 Toomas Soome <tsoome@me.com> 24540b2cc7SHans Rosenfeld * Copyright 2016 Nexenta Systems, Inc. All rights reserved. 2594c894bbSVikram Hegde * Copyright (c) 1998, 2010, Oracle and/or its affiliates. All rights reserved. 26f2dbfd32SRobert Mustacchi * Copyright 2019, Joyent, Inc. 277c478bd9Sstevel@tonic-gate */ 287c478bd9Sstevel@tonic-gate 297c478bd9Sstevel@tonic-gate /* 307c478bd9Sstevel@tonic-gate * Devfsadm replaces drvconfig, audlinks, disks, tapes, ports, devlinks 317c478bd9Sstevel@tonic-gate * as a general purpose device administrative utility. It creates 327c478bd9Sstevel@tonic-gate * devices special files in /devices and logical links in /dev, and 337c478bd9Sstevel@tonic-gate * coordinates updates to /etc/path_to_instance with the kernel. It 347c478bd9Sstevel@tonic-gate * operates in both command line mode to handle user or script invoked 357c478bd9Sstevel@tonic-gate * reconfiguration updates, and operates in daemon mode to handle dynamic 367c478bd9Sstevel@tonic-gate * reconfiguration for hotplugging support. 377c478bd9Sstevel@tonic-gate */ 387c478bd9Sstevel@tonic-gate 3945916cd2Sjpk #include <string.h> 40f875b4ebSrica #include <deflt.h> 4145916cd2Sjpk #include <tsol/label.h> 4245916cd2Sjpk #include <bsm/devices.h> 4345916cd2Sjpk #include <bsm/devalloc.h> 447c478bd9Sstevel@tonic-gate #include <utime.h> 456638bf60Saj #include <sys/param.h> 466638bf60Saj #include <bsm/libbsm.h> 4717e9b2b7SDhanaraj M #include <zone.h> 4845916cd2Sjpk #include "devfsadm_impl.h" 497c478bd9Sstevel@tonic-gate 5045916cd2Sjpk /* externs from devalloc.c */ 5145916cd2Sjpk extern void _reset_devalloc(int); 5245916cd2Sjpk extern void _update_devalloc_db(devlist_t *, int, int, char *, char *); 5345916cd2Sjpk extern int _da_check_for_usb(char *, char *); 547c478bd9Sstevel@tonic-gate 557c478bd9Sstevel@tonic-gate /* create or remove nodes or links. unset with -n */ 567c478bd9Sstevel@tonic-gate static int file_mods = TRUE; 577c478bd9Sstevel@tonic-gate 587c478bd9Sstevel@tonic-gate /* cleanup mode. Set with -C */ 597c478bd9Sstevel@tonic-gate static int cleanup = FALSE; 607c478bd9Sstevel@tonic-gate 617c478bd9Sstevel@tonic-gate /* devlinks -d compatibility */ 627c478bd9Sstevel@tonic-gate static int devlinks_debug = FALSE; 637c478bd9Sstevel@tonic-gate 6445916cd2Sjpk /* flag to check if system is labeled */ 6545916cd2Sjpk int system_labeled = FALSE; 6645916cd2Sjpk 6745916cd2Sjpk /* flag to enable/disable device allocation with -e/-d */ 6845916cd2Sjpk static int devalloc_flag = 0; 6945916cd2Sjpk 706638bf60Saj /* flag that indicates if device allocation is on or not */ 716638bf60Saj static int devalloc_is_on = 0; 726638bf60Saj 7345916cd2Sjpk /* flag to update device allocation database for this device type */ 7445916cd2Sjpk static int update_devdb = 0; 7545916cd2Sjpk 7645916cd2Sjpk /* 7745916cd2Sjpk * devices to be deallocated with -d : 7845916cd2Sjpk * audio, floppy, cd, floppy, tape, rmdisk. 7945916cd2Sjpk */ 8045916cd2Sjpk static char *devalloc_list[10] = {DDI_NT_AUDIO, DDI_NT_CD, DDI_NT_CD_CHAN, 8145916cd2Sjpk DDI_NT_FD, DDI_NT_TAPE, DDI_NT_BLOCK_CHAN, 8245916cd2Sjpk DDI_NT_UGEN, DDI_NT_USB_ATTACHMENT_POINT, 8345916cd2Sjpk DDI_NT_SCSI_NEXUS, NULL}; 847c478bd9Sstevel@tonic-gate 8545916cd2Sjpk /* list of allocatable devices */ 8645916cd2Sjpk static devlist_t devlist; 877c478bd9Sstevel@tonic-gate 887c478bd9Sstevel@tonic-gate /* load a single driver only. set with -i */ 897c478bd9Sstevel@tonic-gate static int single_drv = FALSE; 907c478bd9Sstevel@tonic-gate static char *driver = NULL; 917c478bd9Sstevel@tonic-gate 927c478bd9Sstevel@tonic-gate /* attempt to load drivers or defer attach nodes */ 937c478bd9Sstevel@tonic-gate static int load_attach_drv = TRUE; 947c478bd9Sstevel@tonic-gate 95c9cc1492SJerry Gilliam /* reload all driver.conf files */ 96c9cc1492SJerry Gilliam static int update_all_drivers = FALSE; 97c9cc1492SJerry Gilliam 987c478bd9Sstevel@tonic-gate /* set if invoked via /usr/lib/devfsadm/devfsadmd */ 997c478bd9Sstevel@tonic-gate static int daemon_mode = FALSE; 1007c478bd9Sstevel@tonic-gate 1017e3e5701SJan Parcel /* set if event_handler triggered */ 1027e3e5701SJan Parcel int event_driven = FALSE; 1037e3e5701SJan Parcel 1047c478bd9Sstevel@tonic-gate /* output directed to syslog during daemon mode if set */ 1057c478bd9Sstevel@tonic-gate static int logflag = FALSE; 1067c478bd9Sstevel@tonic-gate 1077c478bd9Sstevel@tonic-gate /* build links in /dev. -x to turn off */ 1087c478bd9Sstevel@tonic-gate static int build_dev = TRUE; 1097c478bd9Sstevel@tonic-gate 1107c478bd9Sstevel@tonic-gate /* build nodes in /devices. -y to turn off */ 1117c478bd9Sstevel@tonic-gate static int build_devices = TRUE; 1127c478bd9Sstevel@tonic-gate 1137c478bd9Sstevel@tonic-gate /* -z to turn off */ 1147c478bd9Sstevel@tonic-gate static int flush_path_to_inst_enable = TRUE; 1157c478bd9Sstevel@tonic-gate 1167c478bd9Sstevel@tonic-gate /* variables used for path_to_inst flushing */ 1177c478bd9Sstevel@tonic-gate static int inst_count = 0; 1187c478bd9Sstevel@tonic-gate static mutex_t count_lock; 1197c478bd9Sstevel@tonic-gate static cond_t cv; 1207c478bd9Sstevel@tonic-gate 121ff2aee48Scth /* variables for minor_fini thread */ 1227c478bd9Sstevel@tonic-gate static mutex_t minor_fini_mutex; 123ff2aee48Scth static int minor_fini_canceled = TRUE; 124ff2aee48Scth static int minor_fini_delayed = FALSE; 125ff2aee48Scth static cond_t minor_fini_cv; 126ff2aee48Scth static int minor_fini_timeout = MINOR_FINI_TIMEOUT_DEFAULT; 1277c478bd9Sstevel@tonic-gate 1287c478bd9Sstevel@tonic-gate /* single-threads /dev modification */ 1297c478bd9Sstevel@tonic-gate static sema_t dev_sema; 1307c478bd9Sstevel@tonic-gate 1317c478bd9Sstevel@tonic-gate /* the program we were invoked as; ie argv[0] */ 1327c478bd9Sstevel@tonic-gate static char *prog; 1337c478bd9Sstevel@tonic-gate 1347c478bd9Sstevel@tonic-gate /* pointers to create/remove link lists */ 1357c478bd9Sstevel@tonic-gate static create_list_t *create_head = NULL; 1367c478bd9Sstevel@tonic-gate static remove_list_t *remove_head = NULL; 1377c478bd9Sstevel@tonic-gate 1387c478bd9Sstevel@tonic-gate /* supports the class -c option */ 1397c478bd9Sstevel@tonic-gate static char **classes = NULL; 1407c478bd9Sstevel@tonic-gate static int num_classes = 0; 1417c478bd9Sstevel@tonic-gate 1427c478bd9Sstevel@tonic-gate /* used with verbose option -v or -V */ 1437c478bd9Sstevel@tonic-gate static int num_verbose = 0; 1447c478bd9Sstevel@tonic-gate static char **verbose = NULL; 1457c478bd9Sstevel@tonic-gate 1467c478bd9Sstevel@tonic-gate static struct mperm *minor_perms = NULL; 1477c478bd9Sstevel@tonic-gate static driver_alias_t *driver_aliases = NULL; 1487c478bd9Sstevel@tonic-gate 1497c478bd9Sstevel@tonic-gate /* set if -r alternate root given */ 1507c478bd9Sstevel@tonic-gate static char *root_dir = ""; 1517c478bd9Sstevel@tonic-gate 1527c478bd9Sstevel@tonic-gate /* /devices or <rootdir>/devices */ 1537c478bd9Sstevel@tonic-gate static char *devices_dir = DEVICES; 1547c478bd9Sstevel@tonic-gate 1557c478bd9Sstevel@tonic-gate /* /dev or <rootdir>/dev */ 1567c478bd9Sstevel@tonic-gate static char *dev_dir = DEV; 1577c478bd9Sstevel@tonic-gate 158facf4a8dSllai /* /etc/dev or <rootdir>/etc/dev */ 159facf4a8dSllai static char *etc_dev_dir = ETCDEV; 160facf4a8dSllai 161facf4a8dSllai /* 162facf4a8dSllai * writable root (for lock files and doors during install). 163facf4a8dSllai * This is also root dir for /dev attr dir during install. 164facf4a8dSllai */ 165facf4a8dSllai static char *attr_root = NULL; 1667c478bd9Sstevel@tonic-gate 1677c478bd9Sstevel@tonic-gate /* /etc/path_to_inst unless -p used */ 1687c478bd9Sstevel@tonic-gate static char *inst_file = INSTANCE_FILE; 1697c478bd9Sstevel@tonic-gate 1707c478bd9Sstevel@tonic-gate /* /usr/lib/devfsadm/linkmods unless -l used */ 1717c478bd9Sstevel@tonic-gate static char *module_dirs = MODULE_DIRS; 1727c478bd9Sstevel@tonic-gate 1737c478bd9Sstevel@tonic-gate /* default uid/gid used if /etc/minor_perm entry not found */ 1747c478bd9Sstevel@tonic-gate static uid_t root_uid; 1757c478bd9Sstevel@tonic-gate static gid_t sys_gid; 1767c478bd9Sstevel@tonic-gate 1777c478bd9Sstevel@tonic-gate /* /etc/devlink.tab unless devlinks -t used */ 1787c478bd9Sstevel@tonic-gate static char *devlinktab_file = NULL; 1797c478bd9Sstevel@tonic-gate 1808d483882Smlf /* File and data structure to reserve enumerate IDs */ 1818d483882Smlf static char *enumerate_file = ENUMERATE_RESERVED; 1828d483882Smlf static enumerate_file_t *enumerate_reserved = NULL; 1838d483882Smlf 1847c478bd9Sstevel@tonic-gate /* set if /dev link is new. speeds up rm_stale_links */ 1857c478bd9Sstevel@tonic-gate static int linknew = TRUE; 1867c478bd9Sstevel@tonic-gate 1877c478bd9Sstevel@tonic-gate /* variables for devlink.tab compat processing */ 1887c478bd9Sstevel@tonic-gate static devlinktab_list_t *devlinktab_list = NULL; 1897c478bd9Sstevel@tonic-gate static unsigned int devlinktab_line = 0; 1907c478bd9Sstevel@tonic-gate 1917c478bd9Sstevel@tonic-gate /* cache head for devfsadm_enumerate*() functions */ 1927c478bd9Sstevel@tonic-gate static numeral_set_t *head_numeral_set = NULL; 1937c478bd9Sstevel@tonic-gate 1947c478bd9Sstevel@tonic-gate /* list list of devfsadm modules */ 1957c478bd9Sstevel@tonic-gate static module_t *module_head = NULL; 1967c478bd9Sstevel@tonic-gate 1977c478bd9Sstevel@tonic-gate /* name_to_major list used in utility function */ 1987c478bd9Sstevel@tonic-gate static n2m_t *n2m_list = NULL; 1997c478bd9Sstevel@tonic-gate 2007c478bd9Sstevel@tonic-gate /* cache of some links used for performance */ 2017c478bd9Sstevel@tonic-gate static linkhead_t *headlinkhead = NULL; 2027c478bd9Sstevel@tonic-gate 2037c478bd9Sstevel@tonic-gate /* locking variables to prevent multiples writes to /dev */ 2047c478bd9Sstevel@tonic-gate static int hold_dev_lock = FALSE; 2057c478bd9Sstevel@tonic-gate static int hold_daemon_lock = FALSE; 2067c478bd9Sstevel@tonic-gate static int dev_lock_fd; 2077c478bd9Sstevel@tonic-gate static int daemon_lock_fd; 2087c478bd9Sstevel@tonic-gate static char dev_lockfile[PATH_MAX + 1]; 2097c478bd9Sstevel@tonic-gate static char daemon_lockfile[PATH_MAX + 1]; 2107c478bd9Sstevel@tonic-gate 2117c478bd9Sstevel@tonic-gate /* last devinfo node/minor processed. used for performance */ 2127c478bd9Sstevel@tonic-gate static di_node_t lnode; 2137c478bd9Sstevel@tonic-gate static di_minor_t lminor; 2147c478bd9Sstevel@tonic-gate static char lphy_path[PATH_MAX + 1] = {""}; 2157c478bd9Sstevel@tonic-gate 2167c478bd9Sstevel@tonic-gate /* Globals used by the link database */ 2177c478bd9Sstevel@tonic-gate static di_devlink_handle_t devlink_cache; 2187c478bd9Sstevel@tonic-gate static int update_database = FALSE; 2197c478bd9Sstevel@tonic-gate 2207c478bd9Sstevel@tonic-gate /* Globals used to set logindev perms */ 2217c478bd9Sstevel@tonic-gate static struct login_dev *login_dev_cache = NULL; 2227c478bd9Sstevel@tonic-gate static int login_dev_enable = FALSE; 2237c478bd9Sstevel@tonic-gate 2247c478bd9Sstevel@tonic-gate /* Global to use devinfo snapshot cache */ 2257c478bd9Sstevel@tonic-gate static int use_snapshot_cache = FALSE; 2267c478bd9Sstevel@tonic-gate 227aa646b9dSvikram /* Global for no-further-processing hash */ 228aa646b9dSvikram static item_t **nfp_hash; 229aa646b9dSvikram static mutex_t nfp_mutex = DEFAULTMUTEX; 230aa646b9dSvikram 2317c478bd9Sstevel@tonic-gate /* 23267323fc4SJohn Levon * Directories not removed even when empty. They are packaged, or may 23367323fc4SJohn Levon * be referred to from a non-global zone. The dirs must be listed in 23467323fc4SJohn Levon * canonical form i.e. without leading "/dev/" 2357c478bd9Sstevel@tonic-gate */ 23667323fc4SJohn Levon static char *sticky_dirs[] = 23767323fc4SJohn Levon {"dsk", "rdsk", "term", "lofi", "rlofi", NULL}; 2387c478bd9Sstevel@tonic-gate 239facf4a8dSllai /* Devname globals */ 240facf4a8dSllai static int lookup_door_fd = -1; 241facf4a8dSllai static char *lookup_door_path; 242facf4a8dSllai 2437c478bd9Sstevel@tonic-gate static void load_dev_acl(void); 244c9cc1492SJerry Gilliam static void update_drvconf(major_t, int); 245facf4a8dSllai static void check_reconfig_state(void); 246facf4a8dSllai static int s_stat(const char *, struct stat *); 2477c478bd9Sstevel@tonic-gate 2481ca93273Seota static int is_blank(char *); 2491ca93273Seota 250f05faa4eSjacobs /* sysevent queue related globals */ 251f05faa4eSjacobs static mutex_t syseventq_mutex = DEFAULTMUTEX; 252f05faa4eSjacobs static syseventq_t *syseventq_front; 253f05faa4eSjacobs static syseventq_t *syseventq_back; 254f05faa4eSjacobs static void process_syseventq(); 255f05faa4eSjacobs 25694c894bbSVikram Hegde static di_node_t devi_root_node = DI_NODE_NIL; 25794c894bbSVikram Hegde 2587c478bd9Sstevel@tonic-gate int 2597c478bd9Sstevel@tonic-gate main(int argc, char *argv[]) 2607c478bd9Sstevel@tonic-gate { 2617c478bd9Sstevel@tonic-gate struct passwd *pw; 2627c478bd9Sstevel@tonic-gate struct group *gp; 2637c478bd9Sstevel@tonic-gate pid_t pid; 2647c478bd9Sstevel@tonic-gate 2657c478bd9Sstevel@tonic-gate (void) setlocale(LC_ALL, ""); 2667c478bd9Sstevel@tonic-gate (void) textdomain(TEXT_DOMAIN); 2677c478bd9Sstevel@tonic-gate 2687c478bd9Sstevel@tonic-gate if ((prog = strrchr(argv[0], '/')) == NULL) { 2697c478bd9Sstevel@tonic-gate prog = argv[0]; 2707c478bd9Sstevel@tonic-gate } else { 2717c478bd9Sstevel@tonic-gate prog++; 2727c478bd9Sstevel@tonic-gate } 2737c478bd9Sstevel@tonic-gate 2747c478bd9Sstevel@tonic-gate if (getuid() != 0) { 2757c478bd9Sstevel@tonic-gate err_print(MUST_BE_ROOT); 2767c478bd9Sstevel@tonic-gate devfsadm_exit(1); 277537714daSvikram /*NOTREACHED*/ 2787c478bd9Sstevel@tonic-gate } 2797c478bd9Sstevel@tonic-gate 28017e9b2b7SDhanaraj M if (getzoneid() != GLOBAL_ZONEID) { 28117e9b2b7SDhanaraj M err_print(MUST_BE_GLOBAL_ZONE); 28217e9b2b7SDhanaraj M devfsadm_exit(1); 28317e9b2b7SDhanaraj M } 28417e9b2b7SDhanaraj M 2857c478bd9Sstevel@tonic-gate /* 2867c478bd9Sstevel@tonic-gate * Close all files except stdin/stdout/stderr 2877c478bd9Sstevel@tonic-gate */ 2887c478bd9Sstevel@tonic-gate closefrom(3); 2897c478bd9Sstevel@tonic-gate 2907c478bd9Sstevel@tonic-gate if ((pw = getpwnam(DEFAULT_DEV_USER)) != NULL) { 2917c478bd9Sstevel@tonic-gate root_uid = pw->pw_uid; 2927c478bd9Sstevel@tonic-gate } else { 2937c478bd9Sstevel@tonic-gate err_print(CANT_FIND_USER, DEFAULT_DEV_USER); 2947c478bd9Sstevel@tonic-gate root_uid = (uid_t)0; /* assume 0 is root */ 2957c478bd9Sstevel@tonic-gate } 2967c478bd9Sstevel@tonic-gate 2977c478bd9Sstevel@tonic-gate /* the default group is sys */ 2987c478bd9Sstevel@tonic-gate 2997c478bd9Sstevel@tonic-gate if ((gp = getgrnam(DEFAULT_DEV_GROUP)) != NULL) { 3007c478bd9Sstevel@tonic-gate sys_gid = gp->gr_gid; 3017c478bd9Sstevel@tonic-gate } else { 3027c478bd9Sstevel@tonic-gate err_print(CANT_FIND_GROUP, DEFAULT_DEV_GROUP); 3037c478bd9Sstevel@tonic-gate sys_gid = (gid_t)3; /* assume 3 is sys */ 3047c478bd9Sstevel@tonic-gate } 3057c478bd9Sstevel@tonic-gate 3067c478bd9Sstevel@tonic-gate (void) umask(0); 3077c478bd9Sstevel@tonic-gate 30845916cd2Sjpk system_labeled = is_system_labeled(); 30945916cd2Sjpk if (system_labeled == FALSE) { 31045916cd2Sjpk /* 31145916cd2Sjpk * is_system_labeled() will return false in case we are 31245916cd2Sjpk * starting before the first reboot after Trusted Extensions 313f875b4ebSrica * is enabled. Check the setting in /etc/system to see if 314f875b4ebSrica * TX is enabled (even if not yet booted). 31545916cd2Sjpk */ 316f875b4ebSrica if (defopen("/etc/system") == 0) { 317f875b4ebSrica if (defread("set sys_labeling=1") != NULL) 318f875b4ebSrica system_labeled = TRUE; 319f875b4ebSrica 320f875b4ebSrica /* close defaults file */ 321f875b4ebSrica (void) defopen(NULL); 322facf4a8dSllai } 32345916cd2Sjpk } 3246638bf60Saj /* 3256638bf60Saj * Check if device allocation is enabled. 3266638bf60Saj */ 3274dd25bdcSJerry Gilliam devalloc_is_on = (da_is_on() == 1) ? 1 : 0; 32845916cd2Sjpk 329f875b4ebSrica #ifdef DEBUG 330f875b4ebSrica if (system_labeled == FALSE) { 331f875b4ebSrica struct stat tx_stat; 332f875b4ebSrica 333f875b4ebSrica /* test hook: see also mkdevalloc.c and allocate.c */ 334f875b4ebSrica system_labeled = is_system_labeled_debug(&tx_stat); 335f875b4ebSrica } 336f875b4ebSrica #endif 337f875b4ebSrica 3387c478bd9Sstevel@tonic-gate parse_args(argc, argv); 3397c478bd9Sstevel@tonic-gate 3407c478bd9Sstevel@tonic-gate (void) sema_init(&dev_sema, 1, USYNC_THREAD, NULL); 3417c478bd9Sstevel@tonic-gate 34245916cd2Sjpk /* Initialize device allocation list */ 34345916cd2Sjpk devlist.audio = devlist.cd = devlist.floppy = devlist.tape = 3440a653502Swroche devlist.rmdisk = NULL; 34545916cd2Sjpk 3467c478bd9Sstevel@tonic-gate if (daemon_mode == TRUE) { 3477c478bd9Sstevel@tonic-gate /* 3487c478bd9Sstevel@tonic-gate * Build /dev and /devices before daemonizing if 3497c478bd9Sstevel@tonic-gate * reconfig booting and daemon invoked with alternate 3507c478bd9Sstevel@tonic-gate * root. This is to support install. 3517c478bd9Sstevel@tonic-gate */ 3527c478bd9Sstevel@tonic-gate if (getenv(RECONFIG_BOOT) != NULL && root_dir[0] != '\0') { 3537c478bd9Sstevel@tonic-gate vprint(INFO_MID, CONFIGURING); 3547c478bd9Sstevel@tonic-gate load_dev_acl(); 355c9cc1492SJerry Gilliam update_drvconf((major_t)-1, 0); 3567c478bd9Sstevel@tonic-gate process_devinfo_tree(); 3577c478bd9Sstevel@tonic-gate (void) modctl(MODSETMINIROOT); 3587c478bd9Sstevel@tonic-gate } 3597c478bd9Sstevel@tonic-gate 3607c478bd9Sstevel@tonic-gate /* 3617c478bd9Sstevel@tonic-gate * fork before detaching from tty in order to print error 3627c478bd9Sstevel@tonic-gate * message if unable to acquire file lock. locks not preserved 3637c478bd9Sstevel@tonic-gate * across forks. Even under debug we want to fork so that 3647c478bd9Sstevel@tonic-gate * when executed at boot we don't hang. 3657c478bd9Sstevel@tonic-gate */ 3667c478bd9Sstevel@tonic-gate if (fork() != 0) { 3677c478bd9Sstevel@tonic-gate devfsadm_exit(0); 368537714daSvikram /*NOTREACHED*/ 3697c478bd9Sstevel@tonic-gate } 3707c478bd9Sstevel@tonic-gate 3717c478bd9Sstevel@tonic-gate /* set directory to / so it coredumps there */ 3727c478bd9Sstevel@tonic-gate if (chdir("/") == -1) { 3737c478bd9Sstevel@tonic-gate err_print(CHROOT_FAILED, strerror(errno)); 3747c478bd9Sstevel@tonic-gate } 3757c478bd9Sstevel@tonic-gate 3767c478bd9Sstevel@tonic-gate /* only one daemon can run at a time */ 3777c478bd9Sstevel@tonic-gate if ((pid = enter_daemon_lock()) == getpid()) { 3787c478bd9Sstevel@tonic-gate detachfromtty(); 3797c478bd9Sstevel@tonic-gate (void) cond_init(&cv, USYNC_THREAD, 0); 3807c478bd9Sstevel@tonic-gate (void) mutex_init(&count_lock, USYNC_THREAD, 0); 381a3ab7e85SToomas Soome if (thr_create(NULL, 0, 382ff2aee48Scth (void *(*)(void *))instance_flush_thread, 383ff2aee48Scth NULL, THR_DETACHED, NULL) != 0) { 3847c478bd9Sstevel@tonic-gate err_print(CANT_CREATE_THREAD, "daemon", 3850a653502Swroche strerror(errno)); 3867c478bd9Sstevel@tonic-gate devfsadm_exit(1); 387537714daSvikram /*NOTREACHED*/ 3887c478bd9Sstevel@tonic-gate } 3897c478bd9Sstevel@tonic-gate 390ff2aee48Scth /* start the minor_fini_thread */ 391ff2aee48Scth (void) mutex_init(&minor_fini_mutex, USYNC_THREAD, 0); 392ff2aee48Scth (void) cond_init(&minor_fini_cv, USYNC_THREAD, 0); 393cb2bfa20SToomas Soome if (thr_create(NULL, 0, minor_fini_thread, 394ff2aee48Scth NULL, THR_DETACHED, NULL)) { 395ff2aee48Scth err_print(CANT_CREATE_THREAD, "minor_fini", 396ff2aee48Scth strerror(errno)); 397ff2aee48Scth devfsadm_exit(1); 398537714daSvikram /*NOTREACHED*/ 399ff2aee48Scth } 400ff2aee48Scth 401ff2aee48Scth 4027c478bd9Sstevel@tonic-gate /* 4030dc974a9SCathy Zhou * logindevperms need only be set 4047c478bd9Sstevel@tonic-gate * in daemon mode and when root dir is "/". 4057c478bd9Sstevel@tonic-gate */ 4060dc974a9SCathy Zhou if (root_dir[0] == '\0') 4077c478bd9Sstevel@tonic-gate login_dev_enable = TRUE; 4087c478bd9Sstevel@tonic-gate daemon_update(); 409537714daSvikram devfsadm_exit(0); 410537714daSvikram /*NOTREACHED*/ 4117c478bd9Sstevel@tonic-gate } else { 4127c478bd9Sstevel@tonic-gate err_print(DAEMON_RUNNING, pid); 4137c478bd9Sstevel@tonic-gate devfsadm_exit(1); 414537714daSvikram /*NOTREACHED*/ 4157c478bd9Sstevel@tonic-gate } 4167c478bd9Sstevel@tonic-gate } else { 4177c478bd9Sstevel@tonic-gate /* not a daemon, so just build /dev and /devices */ 4188c206d17Spr 4198c206d17Spr /* 4208c206d17Spr * If turning off device allocation, load the 4218c206d17Spr * minor_perm file because process_devinfo_tree() will 4228c206d17Spr * need this in order to reset the permissions of the 4238c206d17Spr * device files. 4248c206d17Spr */ 4258c206d17Spr if (devalloc_flag == DA_OFF) { 4268c206d17Spr read_minor_perm_file(); 4278c206d17Spr } 4288c206d17Spr 4297c478bd9Sstevel@tonic-gate process_devinfo_tree(); 43045916cd2Sjpk if (devalloc_flag != 0) 43145916cd2Sjpk /* Enable/disable device allocation */ 43245916cd2Sjpk _reset_devalloc(devalloc_flag); 4337c478bd9Sstevel@tonic-gate } 4347c478bd9Sstevel@tonic-gate return (0); 4357c478bd9Sstevel@tonic-gate } 4367c478bd9Sstevel@tonic-gate 4377c478bd9Sstevel@tonic-gate static void 438c9cc1492SJerry Gilliam update_drvconf(major_t major, int flags) 4397c478bd9Sstevel@tonic-gate { 440c9cc1492SJerry Gilliam if (modctl(MODLOADDRVCONF, major, flags) != 0) 4417c478bd9Sstevel@tonic-gate err_print(gettext("update_drvconf failed for major %d\n"), 4427c478bd9Sstevel@tonic-gate major); 4437c478bd9Sstevel@tonic-gate } 4447c478bd9Sstevel@tonic-gate 4457c478bd9Sstevel@tonic-gate static void 4467c478bd9Sstevel@tonic-gate load_dev_acl() 4477c478bd9Sstevel@tonic-gate { 4487c478bd9Sstevel@tonic-gate if (load_devpolicy() != 0) 4497c478bd9Sstevel@tonic-gate err_print(gettext("device policy load failed\n")); 4507c478bd9Sstevel@tonic-gate load_minor_perm_file(); 4517c478bd9Sstevel@tonic-gate } 4527c478bd9Sstevel@tonic-gate 4537c478bd9Sstevel@tonic-gate /* 454facf4a8dSllai * As devfsadm is run early in boot to provide the kernel with 455facf4a8dSllai * minor_perm info, we might as well check for reconfig at the 456facf4a8dSllai * same time to avoid running devfsadm twice. This gets invoked 457facf4a8dSllai * earlier than the env variable RECONFIG_BOOT is set up. 4587c478bd9Sstevel@tonic-gate */ 459facf4a8dSllai static void 460facf4a8dSllai check_reconfig_state() 4617c478bd9Sstevel@tonic-gate { 462facf4a8dSllai struct stat sb; 4637c478bd9Sstevel@tonic-gate 464facf4a8dSllai if (s_stat("/reconfigure", &sb) == 0) { 465facf4a8dSllai (void) modctl(MODDEVNAME, MODDEVNAME_RECONFIG, 0); 4667c478bd9Sstevel@tonic-gate } 467facf4a8dSllai } 4687c478bd9Sstevel@tonic-gate 469facf4a8dSllai static void 470facf4a8dSllai modctl_sysavail() 471facf4a8dSllai { 472facf4a8dSllai /* 473facf4a8dSllai * Inform /dev that system is available, that 474facf4a8dSllai * implicit reconfig can now be performed. 475facf4a8dSllai */ 476facf4a8dSllai (void) modctl(MODDEVNAME, MODDEVNAME_SYSAVAIL, 0); 477facf4a8dSllai } 4787c478bd9Sstevel@tonic-gate 479facf4a8dSllai static void 480facf4a8dSllai set_lock_root(void) 481facf4a8dSllai { 482facf4a8dSllai struct stat sb; 483facf4a8dSllai char *lock_root; 484facf4a8dSllai size_t len; 4857c478bd9Sstevel@tonic-gate 486facf4a8dSllai lock_root = attr_root ? attr_root : root_dir; 4877c478bd9Sstevel@tonic-gate 488facf4a8dSllai len = strlen(lock_root) + strlen(ETCDEV) + 1; 489facf4a8dSllai etc_dev_dir = s_malloc(len); 490facf4a8dSllai (void) snprintf(etc_dev_dir, len, "%s%s", lock_root, ETCDEV); 4917c478bd9Sstevel@tonic-gate 492facf4a8dSllai if (s_stat(etc_dev_dir, &sb) != 0) { 493facf4a8dSllai s_mkdirp(etc_dev_dir, S_IRWXU|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH); 494facf4a8dSllai } else if (!S_ISDIR(sb.st_mode)) { 495facf4a8dSllai err_print(NOT_DIR, etc_dev_dir); 496facf4a8dSllai devfsadm_exit(1); 497537714daSvikram /*NOTREACHED*/ 498facf4a8dSllai } 4997c478bd9Sstevel@tonic-gate } 5007c478bd9Sstevel@tonic-gate 501facf4a8dSllai 5027c478bd9Sstevel@tonic-gate /* 5037c478bd9Sstevel@tonic-gate * Parse arguments for all 6 programs handled from devfsadm. 5047c478bd9Sstevel@tonic-gate */ 5057c478bd9Sstevel@tonic-gate static void 5067c478bd9Sstevel@tonic-gate parse_args(int argc, char *argv[]) 5077c478bd9Sstevel@tonic-gate { 5087c478bd9Sstevel@tonic-gate char opt; 5097c478bd9Sstevel@tonic-gate char get_linkcompat_opts = FALSE; 5107c478bd9Sstevel@tonic-gate char *compat_class; 5117c478bd9Sstevel@tonic-gate int num_aliases = 0; 5127c478bd9Sstevel@tonic-gate int len; 5137c478bd9Sstevel@tonic-gate int retval; 5146532b960SJerry Gilliam int config = TRUE; 5156532b960SJerry Gilliam int bind = FALSE; 5166532b960SJerry Gilliam int force_flag = FALSE; 5177c478bd9Sstevel@tonic-gate struct aliases *ap = NULL; 5187c478bd9Sstevel@tonic-gate struct aliases *a_head = NULL; 5197c478bd9Sstevel@tonic-gate struct aliases *a_tail = NULL; 5207c478bd9Sstevel@tonic-gate struct modconfig mc; 5217c478bd9Sstevel@tonic-gate 5226532b960SJerry Gilliam (void) bzero(&mc, sizeof (mc)); 5236532b960SJerry Gilliam 5247c478bd9Sstevel@tonic-gate if (strcmp(prog, DISKS) == 0) { 5257c478bd9Sstevel@tonic-gate compat_class = "disk"; 5267c478bd9Sstevel@tonic-gate get_linkcompat_opts = TRUE; 5277c478bd9Sstevel@tonic-gate 5287c478bd9Sstevel@tonic-gate } else if (strcmp(prog, TAPES) == 0) { 5297c478bd9Sstevel@tonic-gate compat_class = "tape"; 5307c478bd9Sstevel@tonic-gate get_linkcompat_opts = TRUE; 5317c478bd9Sstevel@tonic-gate 5327c478bd9Sstevel@tonic-gate } else if (strcmp(prog, PORTS) == 0) { 5337c478bd9Sstevel@tonic-gate compat_class = "port"; 5347c478bd9Sstevel@tonic-gate get_linkcompat_opts = TRUE; 5357c478bd9Sstevel@tonic-gate 5367c478bd9Sstevel@tonic-gate } else if (strcmp(prog, AUDLINKS) == 0) { 5377c478bd9Sstevel@tonic-gate compat_class = "audio"; 5387c478bd9Sstevel@tonic-gate get_linkcompat_opts = TRUE; 5397c478bd9Sstevel@tonic-gate 5407c478bd9Sstevel@tonic-gate } else if (strcmp(prog, DEVLINKS) == 0) { 5417c478bd9Sstevel@tonic-gate devlinktab_file = DEVLINKTAB_FILE; 5427c478bd9Sstevel@tonic-gate 5437c478bd9Sstevel@tonic-gate build_devices = FALSE; 5447c478bd9Sstevel@tonic-gate load_attach_drv = FALSE; 5457c478bd9Sstevel@tonic-gate 5467c478bd9Sstevel@tonic-gate while ((opt = getopt(argc, argv, "dnr:st:vV:")) != EOF) { 5477c478bd9Sstevel@tonic-gate switch (opt) { 5487c478bd9Sstevel@tonic-gate case 'd': 5497c478bd9Sstevel@tonic-gate file_mods = FALSE; 5507c478bd9Sstevel@tonic-gate flush_path_to_inst_enable = FALSE; 5517c478bd9Sstevel@tonic-gate devlinks_debug = TRUE; 5527c478bd9Sstevel@tonic-gate break; 5537c478bd9Sstevel@tonic-gate case 'n': 5547c478bd9Sstevel@tonic-gate /* prevent driver loading and deferred attach */ 5557c478bd9Sstevel@tonic-gate load_attach_drv = FALSE; 5567c478bd9Sstevel@tonic-gate break; 5577c478bd9Sstevel@tonic-gate case 'r': 558facf4a8dSllai set_root_devices_dev_dir(optarg); 5597c478bd9Sstevel@tonic-gate if (zone_pathcheck(root_dir) != 5607c478bd9Sstevel@tonic-gate DEVFSADM_SUCCESS) 5617c478bd9Sstevel@tonic-gate devfsadm_exit(1); 562537714daSvikram /*NOTREACHED*/ 5637c478bd9Sstevel@tonic-gate break; 5647c478bd9Sstevel@tonic-gate case 's': 5657c478bd9Sstevel@tonic-gate /* 5667c478bd9Sstevel@tonic-gate * suppress. don't create/remove links/nodes 5677c478bd9Sstevel@tonic-gate * useful with -v or -V 5687c478bd9Sstevel@tonic-gate */ 5697c478bd9Sstevel@tonic-gate file_mods = FALSE; 5707c478bd9Sstevel@tonic-gate flush_path_to_inst_enable = FALSE; 5717c478bd9Sstevel@tonic-gate break; 5727c478bd9Sstevel@tonic-gate case 't': 5737c478bd9Sstevel@tonic-gate /* supply a non-default table file */ 5747c478bd9Sstevel@tonic-gate devlinktab_file = optarg; 5757c478bd9Sstevel@tonic-gate break; 5767c478bd9Sstevel@tonic-gate case 'v': 5777c478bd9Sstevel@tonic-gate /* documented verbose flag */ 5787c478bd9Sstevel@tonic-gate add_verbose_id(VERBOSE_MID); 5797c478bd9Sstevel@tonic-gate break; 5807c478bd9Sstevel@tonic-gate case 'V': 5817c478bd9Sstevel@tonic-gate /* undocumented for extra verbose levels */ 5827c478bd9Sstevel@tonic-gate add_verbose_id(optarg); 5837c478bd9Sstevel@tonic-gate break; 5847c478bd9Sstevel@tonic-gate default: 5857c478bd9Sstevel@tonic-gate usage(); 5867c478bd9Sstevel@tonic-gate break; 5877c478bd9Sstevel@tonic-gate } 5887c478bd9Sstevel@tonic-gate } 5897c478bd9Sstevel@tonic-gate 5907c478bd9Sstevel@tonic-gate if (optind < argc) { 5917c478bd9Sstevel@tonic-gate usage(); 5927c478bd9Sstevel@tonic-gate } 5937c478bd9Sstevel@tonic-gate 5947c478bd9Sstevel@tonic-gate } else if (strcmp(prog, DRVCONFIG) == 0) { 595c9cc1492SJerry Gilliam int update_only = 0; 5967c478bd9Sstevel@tonic-gate build_dev = FALSE; 5977c478bd9Sstevel@tonic-gate 5987c478bd9Sstevel@tonic-gate while ((opt = 599c9cc1492SJerry Gilliam getopt(argc, argv, "a:bc:dfi:m:np:R:r:suvV:x")) != EOF) { 6007c478bd9Sstevel@tonic-gate switch (opt) { 6017c478bd9Sstevel@tonic-gate case 'a': 6027c478bd9Sstevel@tonic-gate ap = calloc(sizeof (struct aliases), 1); 6037c478bd9Sstevel@tonic-gate ap->a_name = dequote(optarg); 6047c478bd9Sstevel@tonic-gate len = strlen(ap->a_name) + 1; 6057c478bd9Sstevel@tonic-gate if (len > MAXMODCONFNAME) { 6067c478bd9Sstevel@tonic-gate err_print(ALIAS_TOO_LONG, 6077c478bd9Sstevel@tonic-gate MAXMODCONFNAME, ap->a_name); 6087c478bd9Sstevel@tonic-gate devfsadm_exit(1); 609537714daSvikram /*NOTREACHED*/ 6107c478bd9Sstevel@tonic-gate } 6117c478bd9Sstevel@tonic-gate ap->a_len = len; 6127c478bd9Sstevel@tonic-gate if (a_tail == NULL) { 6137c478bd9Sstevel@tonic-gate a_head = ap; 6147c478bd9Sstevel@tonic-gate } else { 6157c478bd9Sstevel@tonic-gate a_tail->a_next = ap; 6167c478bd9Sstevel@tonic-gate } 6177c478bd9Sstevel@tonic-gate a_tail = ap; 6187c478bd9Sstevel@tonic-gate num_aliases++; 6196532b960SJerry Gilliam bind = TRUE; 6207c478bd9Sstevel@tonic-gate break; 6217c478bd9Sstevel@tonic-gate case 'b': 6226532b960SJerry Gilliam bind = TRUE; 6237c478bd9Sstevel@tonic-gate break; 6247c478bd9Sstevel@tonic-gate case 'c': 6257c478bd9Sstevel@tonic-gate (void) strcpy(mc.drvclass, optarg); 6267c478bd9Sstevel@tonic-gate break; 6277c478bd9Sstevel@tonic-gate case 'd': 6287c478bd9Sstevel@tonic-gate /* 6297c478bd9Sstevel@tonic-gate * need to keep for compatibility, but 6307c478bd9Sstevel@tonic-gate * do nothing. 6317c478bd9Sstevel@tonic-gate */ 6327c478bd9Sstevel@tonic-gate break; 6336532b960SJerry Gilliam case 'f': 6346532b960SJerry Gilliam force_flag = TRUE; 6356532b960SJerry Gilliam break; 6367c478bd9Sstevel@tonic-gate case 'i': 6377c478bd9Sstevel@tonic-gate single_drv = TRUE; 6387c478bd9Sstevel@tonic-gate (void) strcpy(mc.drvname, optarg); 6397c478bd9Sstevel@tonic-gate driver = s_strdup(optarg); 6407c478bd9Sstevel@tonic-gate break; 6417c478bd9Sstevel@tonic-gate case 'm': 6427c478bd9Sstevel@tonic-gate mc.major = atoi(optarg); 6437c478bd9Sstevel@tonic-gate break; 6447c478bd9Sstevel@tonic-gate case 'n': 6457c478bd9Sstevel@tonic-gate /* prevent driver loading and deferred attach */ 6467c478bd9Sstevel@tonic-gate load_attach_drv = FALSE; 6477c478bd9Sstevel@tonic-gate break; 6487c478bd9Sstevel@tonic-gate case 'p': 6497c478bd9Sstevel@tonic-gate /* specify alternate path_to_inst file */ 6507c478bd9Sstevel@tonic-gate inst_file = s_strdup(optarg); 6517c478bd9Sstevel@tonic-gate break; 6527c478bd9Sstevel@tonic-gate case 'R': 6537c478bd9Sstevel@tonic-gate /* 6547c478bd9Sstevel@tonic-gate * Private flag for suninstall to populate 6557c478bd9Sstevel@tonic-gate * device information on the installed root. 6567c478bd9Sstevel@tonic-gate */ 6577c478bd9Sstevel@tonic-gate root_dir = s_strdup(optarg); 6587c478bd9Sstevel@tonic-gate if (zone_pathcheck(root_dir) != 6597c478bd9Sstevel@tonic-gate DEVFSADM_SUCCESS) 6607c478bd9Sstevel@tonic-gate devfsadm_exit(devfsadm_copy()); 661537714daSvikram /*NOTREACHED*/ 6627c478bd9Sstevel@tonic-gate break; 6637c478bd9Sstevel@tonic-gate case 'r': 6647c478bd9Sstevel@tonic-gate devices_dir = s_strdup(optarg); 6657c478bd9Sstevel@tonic-gate if (zone_pathcheck(devices_dir) != 6667c478bd9Sstevel@tonic-gate DEVFSADM_SUCCESS) 6677c478bd9Sstevel@tonic-gate devfsadm_exit(1); 668537714daSvikram /*NOTREACHED*/ 6697c478bd9Sstevel@tonic-gate break; 6707c478bd9Sstevel@tonic-gate case 's': 6717c478bd9Sstevel@tonic-gate /* 6727c478bd9Sstevel@tonic-gate * suppress. don't create nodes 6737c478bd9Sstevel@tonic-gate * useful with -v or -V 6747c478bd9Sstevel@tonic-gate */ 6757c478bd9Sstevel@tonic-gate file_mods = FALSE; 6767c478bd9Sstevel@tonic-gate flush_path_to_inst_enable = FALSE; 6777c478bd9Sstevel@tonic-gate break; 6786532b960SJerry Gilliam case 'u': 6796532b960SJerry Gilliam /* 680*bbf21555SRichard Lowe * Invoked via update_drv(8) to update 6816532b960SJerry Gilliam * the kernel's driver/alias binding 6826532b960SJerry Gilliam * when removing one or more aliases. 6836532b960SJerry Gilliam */ 6846532b960SJerry Gilliam config = FALSE; 6856532b960SJerry Gilliam break; 6867c478bd9Sstevel@tonic-gate case 'v': 6877c478bd9Sstevel@tonic-gate /* documented verbose flag */ 6887c478bd9Sstevel@tonic-gate add_verbose_id(VERBOSE_MID); 6897c478bd9Sstevel@tonic-gate break; 6907c478bd9Sstevel@tonic-gate case 'V': 6917c478bd9Sstevel@tonic-gate /* undocumented for extra verbose levels */ 6927c478bd9Sstevel@tonic-gate add_verbose_id(optarg); 6937c478bd9Sstevel@tonic-gate break; 694c9cc1492SJerry Gilliam case 'x': 695c9cc1492SJerry Gilliam update_only = 1; 696c9cc1492SJerry Gilliam break; 6977c478bd9Sstevel@tonic-gate default: 6987c478bd9Sstevel@tonic-gate usage(); 6997c478bd9Sstevel@tonic-gate } 7007c478bd9Sstevel@tonic-gate } 7017c478bd9Sstevel@tonic-gate 7027c478bd9Sstevel@tonic-gate if (optind < argc) { 7037c478bd9Sstevel@tonic-gate usage(); 7047c478bd9Sstevel@tonic-gate } 7057c478bd9Sstevel@tonic-gate 7066532b960SJerry Gilliam if (bind == TRUE) { 707a3ab7e85SToomas Soome if ((mc.major == -1) || (mc.drvname[0] == '\0')) { 7086532b960SJerry Gilliam err_print(MAJOR_AND_B_FLAG); 7096532b960SJerry Gilliam devfsadm_exit(1); 7106532b960SJerry Gilliam /*NOTREACHED*/ 7116532b960SJerry Gilliam } 712c9cc1492SJerry Gilliam mc.flags = 0; 713c9cc1492SJerry Gilliam if (force_flag) 714c9cc1492SJerry Gilliam mc.flags |= MOD_UNBIND_OVERRIDE; 715c9cc1492SJerry Gilliam if (update_only) 716c9cc1492SJerry Gilliam mc.flags |= MOD_ADDMAJBIND_UPDATE; 7177c478bd9Sstevel@tonic-gate mc.num_aliases = num_aliases; 7187c478bd9Sstevel@tonic-gate mc.ap = a_head; 7196532b960SJerry Gilliam retval = modctl((config == TRUE) ? MODADDMAJBIND : 7206532b960SJerry Gilliam MODREMDRVALIAS, NULL, (caddr_t)&mc); 7217c478bd9Sstevel@tonic-gate if (retval < 0) { 7226532b960SJerry Gilliam err_print((config == TRUE) ? MODCTL_ADDMAJBIND : 7236532b960SJerry Gilliam MODCTL_REMMAJBIND); 7247c478bd9Sstevel@tonic-gate } 7257c478bd9Sstevel@tonic-gate devfsadm_exit(retval); 726537714daSvikram /*NOTREACHED*/ 7277c478bd9Sstevel@tonic-gate } 7287c478bd9Sstevel@tonic-gate 7297c478bd9Sstevel@tonic-gate } else if ((strcmp(prog, DEVFSADM) == 0) || 7307c478bd9Sstevel@tonic-gate (strcmp(prog, DEVFSADMD) == 0)) { 7317c478bd9Sstevel@tonic-gate char *zonename = NULL; 7327c478bd9Sstevel@tonic-gate int init_drvconf = 0; 7337c478bd9Sstevel@tonic-gate int init_perm = 0; 7347c478bd9Sstevel@tonic-gate int public_mode = 0; 735facf4a8dSllai int init_sysavail = 0; 7367c478bd9Sstevel@tonic-gate 7377c478bd9Sstevel@tonic-gate if (strcmp(prog, DEVFSADMD) == 0) { 7387c478bd9Sstevel@tonic-gate daemon_mode = TRUE; 7397c478bd9Sstevel@tonic-gate } 7407c478bd9Sstevel@tonic-gate 7417c478bd9Sstevel@tonic-gate devlinktab_file = DEVLINKTAB_FILE; 7427c478bd9Sstevel@tonic-gate 7437c478bd9Sstevel@tonic-gate while ((opt = getopt(argc, argv, 744c9cc1492SJerry Gilliam "a:Cc:deIi:l:np:PR:r:sSt:uvV:x:")) != EOF) { 745facf4a8dSllai if (opt == 'I' || opt == 'P' || opt == 'S') { 7467c478bd9Sstevel@tonic-gate if (public_mode) 7477c478bd9Sstevel@tonic-gate usage(); 7487c478bd9Sstevel@tonic-gate } else { 749facf4a8dSllai if (init_perm || init_drvconf || init_sysavail) 7507c478bd9Sstevel@tonic-gate usage(); 7517c478bd9Sstevel@tonic-gate public_mode = 1; 7527c478bd9Sstevel@tonic-gate } 7537c478bd9Sstevel@tonic-gate switch (opt) { 754facf4a8dSllai case 'a': 755facf4a8dSllai attr_root = s_strdup(optarg); 756facf4a8dSllai break; 7577c478bd9Sstevel@tonic-gate case 'C': 7587c478bd9Sstevel@tonic-gate cleanup = TRUE; 7597c478bd9Sstevel@tonic-gate break; 7607c478bd9Sstevel@tonic-gate case 'c': 7617c478bd9Sstevel@tonic-gate num_classes++; 7620a653502Swroche classes = s_realloc(classes, 7630a653502Swroche num_classes * sizeof (char *)); 7647c478bd9Sstevel@tonic-gate classes[num_classes - 1] = optarg; 7657c478bd9Sstevel@tonic-gate break; 76645916cd2Sjpk case 'd': 7677c478bd9Sstevel@tonic-gate if (daemon_mode == FALSE) { 76845916cd2Sjpk /* 76945916cd2Sjpk * Device allocation to be disabled. 77045916cd2Sjpk */ 77145916cd2Sjpk devalloc_flag = DA_OFF; 77245916cd2Sjpk build_dev = FALSE; 77345916cd2Sjpk } 77445916cd2Sjpk break; 77545916cd2Sjpk case 'e': 77645916cd2Sjpk if (daemon_mode == FALSE) { 77745916cd2Sjpk /* 77845916cd2Sjpk * Device allocation to be enabled. 77945916cd2Sjpk */ 78045916cd2Sjpk devalloc_flag = DA_ON; 7817c478bd9Sstevel@tonic-gate build_dev = FALSE; 7827c478bd9Sstevel@tonic-gate } 7837c478bd9Sstevel@tonic-gate break; 7847c478bd9Sstevel@tonic-gate case 'I': /* update kernel driver.conf cache */ 7857c478bd9Sstevel@tonic-gate if (daemon_mode == TRUE) 7867c478bd9Sstevel@tonic-gate usage(); 7877c478bd9Sstevel@tonic-gate init_drvconf = 1; 7887c478bd9Sstevel@tonic-gate break; 7897c478bd9Sstevel@tonic-gate case 'i': 7907c478bd9Sstevel@tonic-gate single_drv = TRUE; 7917c478bd9Sstevel@tonic-gate driver = s_strdup(optarg); 7927c478bd9Sstevel@tonic-gate break; 7937c478bd9Sstevel@tonic-gate case 'l': 7947c478bd9Sstevel@tonic-gate /* specify an alternate module load path */ 7957c478bd9Sstevel@tonic-gate module_dirs = s_strdup(optarg); 7967c478bd9Sstevel@tonic-gate break; 7977c478bd9Sstevel@tonic-gate case 'n': 7987c478bd9Sstevel@tonic-gate /* prevent driver loading and deferred attach */ 7997c478bd9Sstevel@tonic-gate load_attach_drv = FALSE; 8007c478bd9Sstevel@tonic-gate break; 8017c478bd9Sstevel@tonic-gate case 'p': 8027c478bd9Sstevel@tonic-gate /* specify alternate path_to_inst file */ 8037c478bd9Sstevel@tonic-gate inst_file = s_strdup(optarg); 8047c478bd9Sstevel@tonic-gate break; 8057c478bd9Sstevel@tonic-gate case 'P': 8067c478bd9Sstevel@tonic-gate if (daemon_mode == TRUE) 8077c478bd9Sstevel@tonic-gate usage(); 8087c478bd9Sstevel@tonic-gate /* load minor_perm and device_policy */ 8097c478bd9Sstevel@tonic-gate init_perm = 1; 8107c478bd9Sstevel@tonic-gate break; 8117c478bd9Sstevel@tonic-gate case 'R': 8127c478bd9Sstevel@tonic-gate /* 8137c478bd9Sstevel@tonic-gate * Private flag for suninstall to populate 8147c478bd9Sstevel@tonic-gate * device information on the installed root. 8157c478bd9Sstevel@tonic-gate */ 8167c478bd9Sstevel@tonic-gate root_dir = s_strdup(optarg); 8177c478bd9Sstevel@tonic-gate devfsadm_exit(devfsadm_copy()); 818537714daSvikram /*NOTREACHED*/ 8197c478bd9Sstevel@tonic-gate break; 8207c478bd9Sstevel@tonic-gate case 'r': 821facf4a8dSllai set_root_devices_dev_dir(optarg); 8227c478bd9Sstevel@tonic-gate break; 8237c478bd9Sstevel@tonic-gate case 's': 8247c478bd9Sstevel@tonic-gate /* 8257c478bd9Sstevel@tonic-gate * suppress. don't create/remove links/nodes 8267c478bd9Sstevel@tonic-gate * useful with -v or -V 8277c478bd9Sstevel@tonic-gate */ 8287c478bd9Sstevel@tonic-gate file_mods = FALSE; 8297c478bd9Sstevel@tonic-gate flush_path_to_inst_enable = FALSE; 8307c478bd9Sstevel@tonic-gate break; 831facf4a8dSllai case 'S': 832facf4a8dSllai if (daemon_mode == TRUE) 833facf4a8dSllai usage(); 834facf4a8dSllai init_sysavail = 1; 835facf4a8dSllai break; 8367c478bd9Sstevel@tonic-gate case 't': 8377c478bd9Sstevel@tonic-gate devlinktab_file = optarg; 8387c478bd9Sstevel@tonic-gate break; 839c9cc1492SJerry Gilliam case 'u': /* complete configuration after */ 840c9cc1492SJerry Gilliam /* adding a driver update-only */ 841c9cc1492SJerry Gilliam if (daemon_mode == TRUE) 842c9cc1492SJerry Gilliam usage(); 843c9cc1492SJerry Gilliam update_all_drivers = TRUE; 844c9cc1492SJerry Gilliam break; 8457c478bd9Sstevel@tonic-gate case 'v': 8467c478bd9Sstevel@tonic-gate /* documented verbose flag */ 8477c478bd9Sstevel@tonic-gate add_verbose_id(VERBOSE_MID); 8487c478bd9Sstevel@tonic-gate break; 8497c478bd9Sstevel@tonic-gate case 'V': 8507c478bd9Sstevel@tonic-gate /* undocumented: specify verbose lvl */ 8517c478bd9Sstevel@tonic-gate add_verbose_id(optarg); 8527c478bd9Sstevel@tonic-gate break; 8537c478bd9Sstevel@tonic-gate case 'x': 8547c478bd9Sstevel@tonic-gate /* 8557c478bd9Sstevel@tonic-gate * x is the "private switch" option. The 8567c478bd9Sstevel@tonic-gate * goal is to not suck up all the other 8577c478bd9Sstevel@tonic-gate * option letters. 8587c478bd9Sstevel@tonic-gate */ 8597c478bd9Sstevel@tonic-gate if (strcmp(optarg, "update_devlinksdb") == 0) { 8607c478bd9Sstevel@tonic-gate update_database = TRUE; 8617c478bd9Sstevel@tonic-gate } else if (strcmp(optarg, "no_dev") == 0) { 8627c478bd9Sstevel@tonic-gate /* don't build /dev */ 8637c478bd9Sstevel@tonic-gate build_dev = FALSE; 8647c478bd9Sstevel@tonic-gate } else if (strcmp(optarg, "no_devices") == 0) { 8657c478bd9Sstevel@tonic-gate /* don't build /devices */ 8667c478bd9Sstevel@tonic-gate build_devices = FALSE; 8677c478bd9Sstevel@tonic-gate } else if (strcmp(optarg, "no_p2i") == 0) { 8687c478bd9Sstevel@tonic-gate /* don't flush path_to_inst */ 8697c478bd9Sstevel@tonic-gate flush_path_to_inst_enable = FALSE; 8707c478bd9Sstevel@tonic-gate } else if (strcmp(optarg, "use_dicache") == 0) { 8717c478bd9Sstevel@tonic-gate use_snapshot_cache = TRUE; 8727c478bd9Sstevel@tonic-gate } else { 8737c478bd9Sstevel@tonic-gate usage(); 8747c478bd9Sstevel@tonic-gate } 8757c478bd9Sstevel@tonic-gate break; 8767c478bd9Sstevel@tonic-gate default: 8777c478bd9Sstevel@tonic-gate usage(); 8787c478bd9Sstevel@tonic-gate break; 8797c478bd9Sstevel@tonic-gate } 8807c478bd9Sstevel@tonic-gate } 8817c478bd9Sstevel@tonic-gate if (optind < argc) { 8827c478bd9Sstevel@tonic-gate usage(); 8837c478bd9Sstevel@tonic-gate } 8847c478bd9Sstevel@tonic-gate 8857c478bd9Sstevel@tonic-gate /* 8867c478bd9Sstevel@tonic-gate * We're not in zone mode; Check to see if the rootpath 8877c478bd9Sstevel@tonic-gate * collides with any zonepaths. 8887c478bd9Sstevel@tonic-gate */ 8897c478bd9Sstevel@tonic-gate if (zonename == NULL) { 8907c478bd9Sstevel@tonic-gate if (zone_pathcheck(root_dir) != DEVFSADM_SUCCESS) 8917c478bd9Sstevel@tonic-gate devfsadm_exit(1); 892537714daSvikram /*NOTREACHED*/ 8937c478bd9Sstevel@tonic-gate } 8947c478bd9Sstevel@tonic-gate 895facf4a8dSllai if (init_drvconf || init_perm || init_sysavail) { 8967c478bd9Sstevel@tonic-gate /* 8977c478bd9Sstevel@tonic-gate * Load minor perm before force-loading drivers 8987c478bd9Sstevel@tonic-gate * so the correct permissions are picked up. 8997c478bd9Sstevel@tonic-gate */ 900facf4a8dSllai if (init_perm) { 901facf4a8dSllai check_reconfig_state(); 9027c478bd9Sstevel@tonic-gate load_dev_acl(); 903facf4a8dSllai } 9047c478bd9Sstevel@tonic-gate if (init_drvconf) 905c9cc1492SJerry Gilliam update_drvconf((major_t)-1, 0); 906facf4a8dSllai if (init_sysavail) 907facf4a8dSllai modctl_sysavail(); 9087c478bd9Sstevel@tonic-gate devfsadm_exit(0); 909537714daSvikram /*NOTREACHED*/ 9107c478bd9Sstevel@tonic-gate } 9117c478bd9Sstevel@tonic-gate } 9127c478bd9Sstevel@tonic-gate 9137c478bd9Sstevel@tonic-gate 9147c478bd9Sstevel@tonic-gate if (get_linkcompat_opts == TRUE) { 9157c478bd9Sstevel@tonic-gate 9167c478bd9Sstevel@tonic-gate build_devices = FALSE; 9177c478bd9Sstevel@tonic-gate load_attach_drv = FALSE; 9187c478bd9Sstevel@tonic-gate num_classes++; 9197c478bd9Sstevel@tonic-gate classes = s_realloc(classes, num_classes * 9207c478bd9Sstevel@tonic-gate sizeof (char *)); 9217c478bd9Sstevel@tonic-gate classes[num_classes - 1] = compat_class; 9227c478bd9Sstevel@tonic-gate 9237c478bd9Sstevel@tonic-gate while ((opt = getopt(argc, argv, "Cnr:svV:")) != EOF) { 9247c478bd9Sstevel@tonic-gate switch (opt) { 9257c478bd9Sstevel@tonic-gate case 'C': 9267c478bd9Sstevel@tonic-gate cleanup = TRUE; 9277c478bd9Sstevel@tonic-gate break; 9287c478bd9Sstevel@tonic-gate case 'n': 9297c478bd9Sstevel@tonic-gate /* prevent driver loading or deferred attach */ 9307c478bd9Sstevel@tonic-gate load_attach_drv = FALSE; 9317c478bd9Sstevel@tonic-gate break; 9327c478bd9Sstevel@tonic-gate case 'r': 933facf4a8dSllai set_root_devices_dev_dir(optarg); 9347c478bd9Sstevel@tonic-gate if (zone_pathcheck(root_dir) != 9357c478bd9Sstevel@tonic-gate DEVFSADM_SUCCESS) 9367c478bd9Sstevel@tonic-gate devfsadm_exit(1); 937537714daSvikram /*NOTREACHED*/ 9387c478bd9Sstevel@tonic-gate break; 9397c478bd9Sstevel@tonic-gate case 's': 9407c478bd9Sstevel@tonic-gate /* suppress. don't create/remove links/nodes */ 9417c478bd9Sstevel@tonic-gate /* useful with -v or -V */ 9427c478bd9Sstevel@tonic-gate file_mods = FALSE; 9437c478bd9Sstevel@tonic-gate flush_path_to_inst_enable = FALSE; 9447c478bd9Sstevel@tonic-gate break; 9457c478bd9Sstevel@tonic-gate case 'v': 9467c478bd9Sstevel@tonic-gate /* documented verbose flag */ 9477c478bd9Sstevel@tonic-gate add_verbose_id(VERBOSE_MID); 9487c478bd9Sstevel@tonic-gate break; 9497c478bd9Sstevel@tonic-gate case 'V': 9507c478bd9Sstevel@tonic-gate /* undocumented for extra verbose levels */ 9517c478bd9Sstevel@tonic-gate add_verbose_id(optarg); 9527c478bd9Sstevel@tonic-gate break; 9537c478bd9Sstevel@tonic-gate default: 9547c478bd9Sstevel@tonic-gate usage(); 9557c478bd9Sstevel@tonic-gate } 9567c478bd9Sstevel@tonic-gate } 9577c478bd9Sstevel@tonic-gate if (optind < argc) { 9587c478bd9Sstevel@tonic-gate usage(); 9597c478bd9Sstevel@tonic-gate } 9607c478bd9Sstevel@tonic-gate } 961facf4a8dSllai set_lock_root(); 9627c478bd9Sstevel@tonic-gate } 9637c478bd9Sstevel@tonic-gate 9647c478bd9Sstevel@tonic-gate void 9657c478bd9Sstevel@tonic-gate usage(void) 9667c478bd9Sstevel@tonic-gate { 9677c478bd9Sstevel@tonic-gate if (strcmp(prog, DEVLINKS) == 0) { 9687c478bd9Sstevel@tonic-gate err_print(DEVLINKS_USAGE); 9697c478bd9Sstevel@tonic-gate } else if (strcmp(prog, DRVCONFIG) == 0) { 9707c478bd9Sstevel@tonic-gate err_print(DRVCONFIG_USAGE); 9717c478bd9Sstevel@tonic-gate } else if ((strcmp(prog, DEVFSADM) == 0) || 9720a653502Swroche (strcmp(prog, DEVFSADMD) == 0)) { 9737c478bd9Sstevel@tonic-gate err_print(DEVFSADM_USAGE); 9747c478bd9Sstevel@tonic-gate } else { 9757c478bd9Sstevel@tonic-gate err_print(COMPAT_LINK_USAGE); 9767c478bd9Sstevel@tonic-gate } 9777c478bd9Sstevel@tonic-gate 9787c478bd9Sstevel@tonic-gate devfsadm_exit(1); 979537714daSvikram /*NOTREACHED*/ 9807c478bd9Sstevel@tonic-gate } 9817c478bd9Sstevel@tonic-gate 9827c478bd9Sstevel@tonic-gate static void 9837c478bd9Sstevel@tonic-gate devi_tree_walk(struct dca_impl *dcip, int flags, char *ev_subclass) 9847c478bd9Sstevel@tonic-gate { 9857c478bd9Sstevel@tonic-gate char *msg, *name; 9867c478bd9Sstevel@tonic-gate struct mlist mlist = {0}; 9877c478bd9Sstevel@tonic-gate di_node_t node; 9887c478bd9Sstevel@tonic-gate 9897c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "devi_tree_walk: root=%s, minor=%s, driver=%s," 9907c478bd9Sstevel@tonic-gate " error=%d, flags=%u\n", dcip->dci_root, 9917c478bd9Sstevel@tonic-gate dcip->dci_minor ? dcip->dci_minor : "<NULL>", 9927c478bd9Sstevel@tonic-gate dcip->dci_driver ? dcip->dci_driver : "<NULL>", dcip->dci_error, 9937c478bd9Sstevel@tonic-gate dcip->dci_flags); 9947c478bd9Sstevel@tonic-gate 9957c478bd9Sstevel@tonic-gate assert(dcip->dci_root); 9967c478bd9Sstevel@tonic-gate 9977c478bd9Sstevel@tonic-gate if (dcip->dci_flags & DCA_LOAD_DRV) { 9987c478bd9Sstevel@tonic-gate node = di_init_driver(dcip->dci_driver, flags); 9997c478bd9Sstevel@tonic-gate msg = DRIVER_FAILURE; 10007c478bd9Sstevel@tonic-gate name = dcip->dci_driver; 10017c478bd9Sstevel@tonic-gate } else { 10027c478bd9Sstevel@tonic-gate node = di_init(dcip->dci_root, flags); 10037c478bd9Sstevel@tonic-gate msg = DI_INIT_FAILED; 10047c478bd9Sstevel@tonic-gate name = dcip->dci_root; 10057c478bd9Sstevel@tonic-gate } 10067c478bd9Sstevel@tonic-gate 10077c478bd9Sstevel@tonic-gate if (node == DI_NODE_NIL) { 10087c478bd9Sstevel@tonic-gate dcip->dci_error = errno; 10097c478bd9Sstevel@tonic-gate /* 10107c478bd9Sstevel@tonic-gate * Rapid hotplugging (commonly seen during USB testing), 10117c478bd9Sstevel@tonic-gate * may remove a device before the create event for it 10127c478bd9Sstevel@tonic-gate * has been processed. To prevent alarming users with 10137c478bd9Sstevel@tonic-gate * a superfluous message, we suppress error messages 10147c478bd9Sstevel@tonic-gate * for ENXIO and hotplug. 10157c478bd9Sstevel@tonic-gate */ 10167c478bd9Sstevel@tonic-gate if (!(errno == ENXIO && (dcip->dci_flags & DCA_HOT_PLUG))) 10177c478bd9Sstevel@tonic-gate err_print(msg, name, strerror(dcip->dci_error)); 10187c478bd9Sstevel@tonic-gate return; 10197c478bd9Sstevel@tonic-gate } 10207c478bd9Sstevel@tonic-gate 10217c478bd9Sstevel@tonic-gate if (dcip->dci_flags & DCA_FLUSH_PATHINST) 10227c478bd9Sstevel@tonic-gate flush_path_to_inst(); 10237c478bd9Sstevel@tonic-gate 10247c478bd9Sstevel@tonic-gate dcip->dci_arg = &mlist; 102594c894bbSVikram Hegde devi_root_node = node; /* protected by lock_dev() */ 10267c478bd9Sstevel@tonic-gate 10277c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "walking device tree\n"); 10287c478bd9Sstevel@tonic-gate 10297c478bd9Sstevel@tonic-gate (void) di_walk_minor(node, NULL, DI_CHECK_ALIAS, dcip, 10307c478bd9Sstevel@tonic-gate check_minor_type); 10317c478bd9Sstevel@tonic-gate 10327c478bd9Sstevel@tonic-gate process_deferred_links(dcip, DCA_CREATE_LINK); 10337c478bd9Sstevel@tonic-gate 10347c478bd9Sstevel@tonic-gate dcip->dci_arg = NULL; 10357c478bd9Sstevel@tonic-gate 10367c478bd9Sstevel@tonic-gate /* 10377c478bd9Sstevel@tonic-gate * Finished creating devfs files and dev links. 10380dc974a9SCathy Zhou * Log sysevent. 10397c478bd9Sstevel@tonic-gate */ 10407c478bd9Sstevel@tonic-gate if (ev_subclass) 1041f05faa4eSjacobs build_and_enq_event(EC_DEV_ADD, ev_subclass, dcip->dci_root, 104230294554Sphitran node, dcip->dci_minor); 10437c478bd9Sstevel@tonic-gate 104445916cd2Sjpk /* Add new device to device allocation database */ 104545916cd2Sjpk if (system_labeled && update_devdb) { 104645916cd2Sjpk _update_devalloc_db(&devlist, 0, DA_ADD, NULL, root_dir); 104745916cd2Sjpk update_devdb = 0; 104845916cd2Sjpk } 104945916cd2Sjpk 105094c894bbSVikram Hegde devi_root_node = DI_NODE_NIL; /* protected by lock_dev() */ 10517c478bd9Sstevel@tonic-gate di_fini(node); 10527c478bd9Sstevel@tonic-gate } 10537c478bd9Sstevel@tonic-gate 10547c478bd9Sstevel@tonic-gate static void 10557c478bd9Sstevel@tonic-gate process_deferred_links(struct dca_impl *dcip, int flags) 10567c478bd9Sstevel@tonic-gate { 10577c478bd9Sstevel@tonic-gate struct mlist *dep; 10587c478bd9Sstevel@tonic-gate struct minor *mp, *smp; 10597c478bd9Sstevel@tonic-gate 10607c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "processing deferred links\n"); 10617c478bd9Sstevel@tonic-gate 10627c478bd9Sstevel@tonic-gate dep = dcip->dci_arg; 10637c478bd9Sstevel@tonic-gate 10647c478bd9Sstevel@tonic-gate /* 10657c478bd9Sstevel@tonic-gate * The list head is not used during the deferred create phase 10667c478bd9Sstevel@tonic-gate */ 10677c478bd9Sstevel@tonic-gate dcip->dci_arg = NULL; 10687c478bd9Sstevel@tonic-gate 10697c478bd9Sstevel@tonic-gate assert(dep); 10707c478bd9Sstevel@tonic-gate assert((dep->head == NULL) ^ (dep->tail != NULL)); 10717c478bd9Sstevel@tonic-gate assert(flags == DCA_FREE_LIST || flags == DCA_CREATE_LINK); 10727c478bd9Sstevel@tonic-gate 10737c478bd9Sstevel@tonic-gate for (smp = NULL, mp = dep->head; mp; mp = mp->next) { 10747c478bd9Sstevel@tonic-gate if (flags == DCA_CREATE_LINK) 10757c478bd9Sstevel@tonic-gate (void) check_minor_type(mp->node, mp->minor, dcip); 10767c478bd9Sstevel@tonic-gate free(smp); 10777c478bd9Sstevel@tonic-gate smp = mp; 10787c478bd9Sstevel@tonic-gate } 10797c478bd9Sstevel@tonic-gate 10807c478bd9Sstevel@tonic-gate free(smp); 10817c478bd9Sstevel@tonic-gate } 10827c478bd9Sstevel@tonic-gate 10837c478bd9Sstevel@tonic-gate /* 10847c478bd9Sstevel@tonic-gate * Called in non-daemon mode to take a snap shot of the devinfo tree. 10857c478bd9Sstevel@tonic-gate * Then it calls the appropriate functions to build /devices and /dev. 10867c478bd9Sstevel@tonic-gate * It also flushes path_to_inst. 108798a9beefShtk * Except in the devfsadm -i (single driver case), the flags used by devfsadm 108898a9beefShtk * needs to match DI_CACHE_SNAPSHOT_FLAGS. That will make DINFOCACHE snapshot 108998a9beefShtk * updated. 10907c478bd9Sstevel@tonic-gate */ 10917c478bd9Sstevel@tonic-gate void 10927c478bd9Sstevel@tonic-gate process_devinfo_tree() 10937c478bd9Sstevel@tonic-gate { 109498a9beefShtk uint_t flags; 10957c478bd9Sstevel@tonic-gate struct dca_impl dci; 10967c478bd9Sstevel@tonic-gate char name[MAXNAMELEN]; 10977c478bd9Sstevel@tonic-gate char *fcn = "process_devinfo_tree: "; 10987c478bd9Sstevel@tonic-gate 10997c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "%senter\n", fcn); 11007c478bd9Sstevel@tonic-gate 11017c478bd9Sstevel@tonic-gate dca_impl_init("/", NULL, &dci); 11027c478bd9Sstevel@tonic-gate 11037c478bd9Sstevel@tonic-gate lock_dev(); 11047c478bd9Sstevel@tonic-gate 11057c478bd9Sstevel@tonic-gate /* 11067c478bd9Sstevel@tonic-gate * Update kernel driver.conf cache when devfsadm/drvconfig 11077c478bd9Sstevel@tonic-gate * is invoked to build /devices and /dev. 11087c478bd9Sstevel@tonic-gate */ 1109c9cc1492SJerry Gilliam if (update_all_drivers || load_attach_drv) { 1110c9cc1492SJerry Gilliam update_drvconf((major_t)-1, 1111c9cc1492SJerry Gilliam update_all_drivers ? MOD_LOADDRVCONF_RECONF : 0); 1112c9cc1492SJerry Gilliam } 11137c478bd9Sstevel@tonic-gate 11147c478bd9Sstevel@tonic-gate if (single_drv == TRUE) { 11157c478bd9Sstevel@tonic-gate /* 11167c478bd9Sstevel@tonic-gate * load a single driver, but walk the entire devinfo tree 11177c478bd9Sstevel@tonic-gate */ 11187c478bd9Sstevel@tonic-gate if (load_attach_drv == FALSE) 11197c478bd9Sstevel@tonic-gate err_print(DRV_LOAD_REQD); 11207c478bd9Sstevel@tonic-gate 11217c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "%sattaching driver (%s)\n", fcn, driver); 11227c478bd9Sstevel@tonic-gate 11237c478bd9Sstevel@tonic-gate dci.dci_flags |= DCA_LOAD_DRV; 11247c478bd9Sstevel@tonic-gate (void) snprintf(name, sizeof (name), "%s", driver); 11257c478bd9Sstevel@tonic-gate dci.dci_driver = name; 112698a9beefShtk flags = DINFOCPYALL | DINFOPATH; 11277c478bd9Sstevel@tonic-gate 11287c478bd9Sstevel@tonic-gate } else if (load_attach_drv == TRUE) { 11297c478bd9Sstevel@tonic-gate /* 113045916cd2Sjpk * Load and attach all drivers, then walk the entire tree. 11317c478bd9Sstevel@tonic-gate * If the cache flag is set, use DINFOCACHE to get cached 11327c478bd9Sstevel@tonic-gate * data. 11337c478bd9Sstevel@tonic-gate */ 11347c478bd9Sstevel@tonic-gate if (use_snapshot_cache == TRUE) { 11357c478bd9Sstevel@tonic-gate flags = DINFOCACHE; 11367c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "%susing snapshot cache\n", fcn); 11377c478bd9Sstevel@tonic-gate } else { 11387c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "%sattaching all drivers\n", fcn); 113998a9beefShtk flags = DI_CACHE_SNAPSHOT_FLAGS; 11403c34adc5Sramat if (cleanup) { 11413c34adc5Sramat /* 11423c34adc5Sramat * remove dangling entries from /etc/devices 11433c34adc5Sramat * files. 11443c34adc5Sramat */ 11453c34adc5Sramat flags |= DINFOCLEANUP; 11463c34adc5Sramat } 11477c478bd9Sstevel@tonic-gate } 114834087db8Shtk } else { 114934087db8Shtk /* 115034087db8Shtk * For devlinks, disks, ports, tapes and devfsadm -n, 115134087db8Shtk * just need to take a snapshot with active devices. 115234087db8Shtk */ 115334087db8Shtk vprint(CHATTY_MID, "%staking snapshot of active devices\n", 11540a653502Swroche fcn); 115534087db8Shtk flags = DINFOCPYALL; 11567c478bd9Sstevel@tonic-gate } 11577c478bd9Sstevel@tonic-gate 11587c478bd9Sstevel@tonic-gate if (((load_attach_drv == TRUE) || (single_drv == TRUE)) && 11597c478bd9Sstevel@tonic-gate (build_devices == TRUE)) { 11607c478bd9Sstevel@tonic-gate dci.dci_flags |= DCA_FLUSH_PATHINST; 11617c478bd9Sstevel@tonic-gate } 11627c478bd9Sstevel@tonic-gate 11637c478bd9Sstevel@tonic-gate /* handle pre-cleanup operations desired by the modules. */ 11647c478bd9Sstevel@tonic-gate pre_and_post_cleanup(RM_PRE); 11657c478bd9Sstevel@tonic-gate 11667c478bd9Sstevel@tonic-gate devi_tree_walk(&dci, flags, NULL); 11677c478bd9Sstevel@tonic-gate 11687c478bd9Sstevel@tonic-gate if (dci.dci_error) { 11697c478bd9Sstevel@tonic-gate devfsadm_exit(1); 1170537714daSvikram /*NOTREACHED*/ 11717c478bd9Sstevel@tonic-gate } 11727c478bd9Sstevel@tonic-gate 11737c478bd9Sstevel@tonic-gate /* handle post-cleanup operations desired by the modules. */ 11747c478bd9Sstevel@tonic-gate pre_and_post_cleanup(RM_POST); 11757c478bd9Sstevel@tonic-gate 11767c478bd9Sstevel@tonic-gate unlock_dev(SYNC_STATE); 11777c478bd9Sstevel@tonic-gate } 11787c478bd9Sstevel@tonic-gate 11797c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 11807c478bd9Sstevel@tonic-gate static void 11817c478bd9Sstevel@tonic-gate print_cache_signal(int signo) 11827c478bd9Sstevel@tonic-gate { 11837c478bd9Sstevel@tonic-gate if (signal(SIGUSR1, print_cache_signal) == SIG_ERR) { 11847c478bd9Sstevel@tonic-gate err_print("signal SIGUSR1 failed: %s\n", strerror(errno)); 11857c478bd9Sstevel@tonic-gate devfsadm_exit(1); 1186537714daSvikram /*NOTREACHED*/ 11877c478bd9Sstevel@tonic-gate } 11887c478bd9Sstevel@tonic-gate } 11897c478bd9Sstevel@tonic-gate 1190facf4a8dSllai static void 1191facf4a8dSllai revoke_lookup_door(void) 1192facf4a8dSllai { 1193facf4a8dSllai if (lookup_door_fd != -1) { 1194facf4a8dSllai if (door_revoke(lookup_door_fd) == -1) { 1195facf4a8dSllai err_print("door_revoke of %s failed - %s\n", 1196facf4a8dSllai lookup_door_path, strerror(errno)); 1197facf4a8dSllai } 1198facf4a8dSllai } 1199facf4a8dSllai } 1200facf4a8dSllai 1201facf4a8dSllai /*ARGSUSED*/ 1202facf4a8dSllai static void 1203facf4a8dSllai catch_exit(int signo) 1204facf4a8dSllai { 1205facf4a8dSllai revoke_lookup_door(); 1206facf4a8dSllai } 1207facf4a8dSllai 12087c478bd9Sstevel@tonic-gate /* 12097c478bd9Sstevel@tonic-gate * Register with eventd for messages. Create doors for synchronous 12107c478bd9Sstevel@tonic-gate * link creation. 12117c478bd9Sstevel@tonic-gate */ 12127c478bd9Sstevel@tonic-gate static void 12137c478bd9Sstevel@tonic-gate daemon_update(void) 12147c478bd9Sstevel@tonic-gate { 12157c478bd9Sstevel@tonic-gate int fd; 12167c478bd9Sstevel@tonic-gate char *fcn = "daemon_update: "; 12177c478bd9Sstevel@tonic-gate char door_file[MAXPATHLEN]; 12187c478bd9Sstevel@tonic-gate const char *subclass_list; 12197c478bd9Sstevel@tonic-gate sysevent_handle_t *sysevent_hp; 12207c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "%senter\n", fcn); 12217c478bd9Sstevel@tonic-gate 12227c478bd9Sstevel@tonic-gate if (signal(SIGUSR1, print_cache_signal) == SIG_ERR) { 12237c478bd9Sstevel@tonic-gate err_print("signal SIGUSR1 failed: %s\n", strerror(errno)); 12247c478bd9Sstevel@tonic-gate devfsadm_exit(1); 1225537714daSvikram /*NOTREACHED*/ 12267c478bd9Sstevel@tonic-gate } 1227facf4a8dSllai if (signal(SIGTERM, catch_exit) == SIG_ERR) { 1228facf4a8dSllai err_print("signal SIGTERM failed: %s\n", strerror(errno)); 1229facf4a8dSllai devfsadm_exit(1); 1230537714daSvikram /*NOTREACHED*/ 1231facf4a8dSllai } 12327c478bd9Sstevel@tonic-gate 12337c478bd9Sstevel@tonic-gate if (snprintf(door_file, sizeof (door_file), 1234facf4a8dSllai "%s%s", attr_root ? attr_root : root_dir, DEVFSADM_SERVICE_DOOR) 1235facf4a8dSllai >= sizeof (door_file)) { 12367c478bd9Sstevel@tonic-gate err_print("update_daemon failed to open sysevent service " 12377c478bd9Sstevel@tonic-gate "door\n"); 12387c478bd9Sstevel@tonic-gate devfsadm_exit(1); 1239537714daSvikram /*NOTREACHED*/ 12407c478bd9Sstevel@tonic-gate } 12417c478bd9Sstevel@tonic-gate if ((sysevent_hp = sysevent_open_channel_alt( 12427c478bd9Sstevel@tonic-gate door_file)) == NULL) { 12437c478bd9Sstevel@tonic-gate err_print(CANT_CREATE_DOOR, 12440a653502Swroche door_file, strerror(errno)); 12457c478bd9Sstevel@tonic-gate devfsadm_exit(1); 1246537714daSvikram /*NOTREACHED*/ 12477c478bd9Sstevel@tonic-gate } 12487c478bd9Sstevel@tonic-gate if (sysevent_bind_subscriber(sysevent_hp, event_handler) != 0) { 12497c478bd9Sstevel@tonic-gate err_print(CANT_CREATE_DOOR, 12507c478bd9Sstevel@tonic-gate door_file, strerror(errno)); 12517c478bd9Sstevel@tonic-gate (void) sysevent_close_channel(sysevent_hp); 12527c478bd9Sstevel@tonic-gate devfsadm_exit(1); 1253537714daSvikram /*NOTREACHED*/ 12547c478bd9Sstevel@tonic-gate } 12557c478bd9Sstevel@tonic-gate subclass_list = EC_SUB_ALL; 12567c478bd9Sstevel@tonic-gate if (sysevent_register_event(sysevent_hp, EC_ALL, &subclass_list, 1) 12577c478bd9Sstevel@tonic-gate != 0) { 12587c478bd9Sstevel@tonic-gate err_print(CANT_CREATE_DOOR, 12597c478bd9Sstevel@tonic-gate door_file, strerror(errno)); 12607c478bd9Sstevel@tonic-gate (void) sysevent_unbind_subscriber(sysevent_hp); 12617c478bd9Sstevel@tonic-gate (void) sysevent_close_channel(sysevent_hp); 12627c478bd9Sstevel@tonic-gate devfsadm_exit(1); 1263537714daSvikram /*NOTREACHED*/ 12647c478bd9Sstevel@tonic-gate } 1265facf4a8dSllai if (snprintf(door_file, sizeof (door_file), "%s/%s", 1266facf4a8dSllai etc_dev_dir, DEVFSADM_SYNCH_DOOR) >= sizeof (door_file)) { 1267facf4a8dSllai err_print(CANT_CREATE_DOOR, DEVFSADM_SYNCH_DOOR, 12687c478bd9Sstevel@tonic-gate strerror(ENAMETOOLONG)); 12697c478bd9Sstevel@tonic-gate devfsadm_exit(1); 1270537714daSvikram /*NOTREACHED*/ 12717c478bd9Sstevel@tonic-gate } 1272facf4a8dSllai 12737c478bd9Sstevel@tonic-gate (void) s_unlink(door_file); 1274facf4a8dSllai if ((fd = open(door_file, O_RDWR | O_CREAT, SYNCH_DOOR_PERMS)) == -1) { 1275facf4a8dSllai err_print(CANT_CREATE_DOOR, door_file, strerror(errno)); 12767c478bd9Sstevel@tonic-gate devfsadm_exit(1); 1277537714daSvikram /*NOTREACHED*/ 12787c478bd9Sstevel@tonic-gate } 12797c478bd9Sstevel@tonic-gate (void) close(fd); 1280facf4a8dSllai 1281facf4a8dSllai if ((fd = door_create(sync_handler, NULL, 12827c478bd9Sstevel@tonic-gate DOOR_REFUSE_DESC | DOOR_NO_CANCEL)) == -1) { 1283facf4a8dSllai err_print(CANT_CREATE_DOOR, door_file, strerror(errno)); 12847c478bd9Sstevel@tonic-gate (void) s_unlink(door_file); 12857c478bd9Sstevel@tonic-gate devfsadm_exit(1); 1286537714daSvikram /*NOTREACHED*/ 12877c478bd9Sstevel@tonic-gate } 1288facf4a8dSllai 12897c478bd9Sstevel@tonic-gate if (fattach(fd, door_file) == -1) { 1290facf4a8dSllai err_print(CANT_CREATE_DOOR, door_file, strerror(errno)); 12917c478bd9Sstevel@tonic-gate (void) s_unlink(door_file); 12927c478bd9Sstevel@tonic-gate devfsadm_exit(1); 1293537714daSvikram /*NOTREACHED*/ 12947c478bd9Sstevel@tonic-gate } 12957c478bd9Sstevel@tonic-gate 1296facf4a8dSllai /* 1297facf4a8dSllai * devname_lookup_door 1298facf4a8dSllai */ 1299facf4a8dSllai if (snprintf(door_file, sizeof (door_file), "%s/%s", 1300facf4a8dSllai etc_dev_dir, DEVNAME_LOOKUP_DOOR) >= sizeof (door_file)) { 1301facf4a8dSllai err_print(CANT_CREATE_DOOR, DEVNAME_LOOKUP_DOOR, 1302facf4a8dSllai strerror(ENAMETOOLONG)); 1303facf4a8dSllai devfsadm_exit(1); 1304537714daSvikram /*NOTREACHED*/ 1305facf4a8dSllai } 13067c478bd9Sstevel@tonic-gate 13077c478bd9Sstevel@tonic-gate (void) s_unlink(door_file); 1308facf4a8dSllai if ((fd = open(door_file, O_RDWR | O_CREAT, S_IRUSR|S_IWUSR)) == -1) { 13097c478bd9Sstevel@tonic-gate err_print(CANT_CREATE_DOOR, door_file, strerror(errno)); 13107c478bd9Sstevel@tonic-gate devfsadm_exit(1); 1311537714daSvikram /*NOTREACHED*/ 13127c478bd9Sstevel@tonic-gate } 13137c478bd9Sstevel@tonic-gate (void) close(fd); 13147c478bd9Sstevel@tonic-gate 1315facf4a8dSllai if ((fd = door_create(devname_lookup_handler, NULL, 1316facf4a8dSllai DOOR_REFUSE_DESC)) == -1) { 13177c478bd9Sstevel@tonic-gate err_print(CANT_CREATE_DOOR, door_file, strerror(errno)); 13187c478bd9Sstevel@tonic-gate (void) s_unlink(door_file); 13197c478bd9Sstevel@tonic-gate devfsadm_exit(1); 1320537714daSvikram /*NOTREACHED*/ 13217c478bd9Sstevel@tonic-gate } 13227c478bd9Sstevel@tonic-gate 1323facf4a8dSllai (void) fdetach(door_file); 1324facf4a8dSllai lookup_door_path = s_strdup(door_file); 1325facf4a8dSllai retry: 13267c478bd9Sstevel@tonic-gate if (fattach(fd, door_file) == -1) { 1327facf4a8dSllai if (errno == EBUSY) 1328facf4a8dSllai goto retry; 13297c478bd9Sstevel@tonic-gate err_print(CANT_CREATE_DOOR, door_file, strerror(errno)); 13307c478bd9Sstevel@tonic-gate (void) s_unlink(door_file); 13317c478bd9Sstevel@tonic-gate devfsadm_exit(1); 1332537714daSvikram /*NOTREACHED*/ 13337c478bd9Sstevel@tonic-gate } 1334facf4a8dSllai lookup_door_fd = fd; 13357c478bd9Sstevel@tonic-gate 1336facf4a8dSllai /* pass down the door name to kernel for door_ki_open */ 1337facf4a8dSllai if (devname_kcall(MODDEVNAME_LOOKUPDOOR, (void *)door_file) != 0) 1338facf4a8dSllai err_print(DEVNAME_CONTACT_FAILED, strerror(errno)); 13397c478bd9Sstevel@tonic-gate 13407c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "%spausing\n", fcn); 13417c478bd9Sstevel@tonic-gate for (;;) { 13427c478bd9Sstevel@tonic-gate (void) pause(); 13437c478bd9Sstevel@tonic-gate } 13447c478bd9Sstevel@tonic-gate } 13457c478bd9Sstevel@tonic-gate 13467c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 13477c478bd9Sstevel@tonic-gate static void 13487c478bd9Sstevel@tonic-gate sync_handler(void *cookie, char *ap, size_t asize, 13497c478bd9Sstevel@tonic-gate door_desc_t *dp, uint_t ndesc) 13507c478bd9Sstevel@tonic-gate { 13517c478bd9Sstevel@tonic-gate door_cred_t dcred; 13527c478bd9Sstevel@tonic-gate struct dca_off *dcp, rdca; 13537c478bd9Sstevel@tonic-gate struct dca_impl dci; 13547c478bd9Sstevel@tonic-gate 13557c478bd9Sstevel@tonic-gate /* 13567c478bd9Sstevel@tonic-gate * Must be root to make this call 13577c478bd9Sstevel@tonic-gate * If caller is not root, don't touch its data. 13587c478bd9Sstevel@tonic-gate */ 13597c478bd9Sstevel@tonic-gate if (door_cred(&dcred) != 0 || dcred.dc_euid != 0) { 13607c478bd9Sstevel@tonic-gate dcp = ⤷ 13617c478bd9Sstevel@tonic-gate dcp->dca_error = EPERM; 13627c478bd9Sstevel@tonic-gate goto out; 13637c478bd9Sstevel@tonic-gate } 13647c478bd9Sstevel@tonic-gate 13657c478bd9Sstevel@tonic-gate assert(ap); 13667c478bd9Sstevel@tonic-gate assert(asize == sizeof (*dcp)); 13677c478bd9Sstevel@tonic-gate 13687c478bd9Sstevel@tonic-gate dcp = (void *)ap; 13697c478bd9Sstevel@tonic-gate 13707c478bd9Sstevel@tonic-gate /* 13717c478bd9Sstevel@tonic-gate * Root is always present and is the first component of "name" member 13727c478bd9Sstevel@tonic-gate */ 13737c478bd9Sstevel@tonic-gate assert(dcp->dca_root == 0); 13747c478bd9Sstevel@tonic-gate 13757c478bd9Sstevel@tonic-gate /* 13767c478bd9Sstevel@tonic-gate * The structure passed in by the door_client uses offsets 13777c478bd9Sstevel@tonic-gate * instead of pointers to work across address space boundaries. 13787c478bd9Sstevel@tonic-gate * Now copy the data into a structure (dca_impl) which uses 13797c478bd9Sstevel@tonic-gate * pointers. 13807c478bd9Sstevel@tonic-gate */ 13817c478bd9Sstevel@tonic-gate dci.dci_root = &dcp->dca_name[dcp->dca_root]; 13827c478bd9Sstevel@tonic-gate dci.dci_minor = dcp->dca_minor ? &dcp->dca_name[dcp->dca_minor] : NULL; 13837c478bd9Sstevel@tonic-gate dci.dci_driver = 13847c478bd9Sstevel@tonic-gate dcp->dca_driver ? &dcp->dca_name[dcp->dca_driver] : NULL; 13857c478bd9Sstevel@tonic-gate dci.dci_error = 0; 13867c478bd9Sstevel@tonic-gate dci.dci_flags = dcp->dca_flags | (dci.dci_driver ? DCA_LOAD_DRV : 0); 13877c478bd9Sstevel@tonic-gate dci.dci_arg = NULL; 13887c478bd9Sstevel@tonic-gate 13897c478bd9Sstevel@tonic-gate lock_dev(); 13907c478bd9Sstevel@tonic-gate devi_tree_walk(&dci, DINFOCPYALL, NULL); 13917c478bd9Sstevel@tonic-gate dcp->dca_error = dci.dci_error; 13927c478bd9Sstevel@tonic-gate 1393ff2aee48Scth if (dcp->dca_flags & DCA_DEVLINK_SYNC) 1394ff2aee48Scth unlock_dev(SYNC_STATE); 1395ff2aee48Scth else 1396ff2aee48Scth unlock_dev(CACHE_STATE); 13977c478bd9Sstevel@tonic-gate 1398ff2aee48Scth out: (void) door_return((char *)dcp, sizeof (*dcp), NULL, 0); 13997c478bd9Sstevel@tonic-gate } 14007c478bd9Sstevel@tonic-gate 14017c478bd9Sstevel@tonic-gate static void 14027c478bd9Sstevel@tonic-gate lock_dev(void) 14037c478bd9Sstevel@tonic-gate { 14047c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "lock_dev(): entered\n"); 14057c478bd9Sstevel@tonic-gate 14067c478bd9Sstevel@tonic-gate if (build_dev == FALSE) 14077c478bd9Sstevel@tonic-gate return; 14087c478bd9Sstevel@tonic-gate 14097c478bd9Sstevel@tonic-gate /* lockout other threads from /dev */ 14100a653502Swroche while (sema_wait(&dev_sema) != 0) 14110a653502Swroche ; 14127c478bd9Sstevel@tonic-gate 14137c478bd9Sstevel@tonic-gate /* 14147c478bd9Sstevel@tonic-gate * Lock out other devfsadm processes from /dev. 14157c478bd9Sstevel@tonic-gate * If this wasn't the last process to run, 14167c478bd9Sstevel@tonic-gate * clear caches 14177c478bd9Sstevel@tonic-gate */ 14187c478bd9Sstevel@tonic-gate if (enter_dev_lock() != getpid()) { 14197c478bd9Sstevel@tonic-gate invalidate_enumerate_cache(); 14207c478bd9Sstevel@tonic-gate rm_all_links_from_cache(); 14217c478bd9Sstevel@tonic-gate (void) di_devlink_close(&devlink_cache, DI_LINK_ERROR); 1422f05faa4eSjacobs 1423f05faa4eSjacobs /* send any sysevents that were queued up. */ 1424f05faa4eSjacobs process_syseventq(); 14257c478bd9Sstevel@tonic-gate } 14267c478bd9Sstevel@tonic-gate 14277c478bd9Sstevel@tonic-gate /* 14287c478bd9Sstevel@tonic-gate * (re)load the reverse links database if not 14297c478bd9Sstevel@tonic-gate * already cached. 14307c478bd9Sstevel@tonic-gate */ 14317c478bd9Sstevel@tonic-gate if (devlink_cache == NULL) 14327c478bd9Sstevel@tonic-gate devlink_cache = di_devlink_open(root_dir, 0); 14337c478bd9Sstevel@tonic-gate 14347c478bd9Sstevel@tonic-gate /* 14357c478bd9Sstevel@tonic-gate * If modules were unloaded, reload them. Also use module status 14367c478bd9Sstevel@tonic-gate * as an indication that we should check to see if other binding 14377c478bd9Sstevel@tonic-gate * files need to be reloaded. 14387c478bd9Sstevel@tonic-gate */ 14397c478bd9Sstevel@tonic-gate if (module_head == NULL) { 14407c478bd9Sstevel@tonic-gate load_modules(); 14417c478bd9Sstevel@tonic-gate read_minor_perm_file(); 14427c478bd9Sstevel@tonic-gate read_driver_aliases_file(); 14437c478bd9Sstevel@tonic-gate read_devlinktab_file(); 14447c478bd9Sstevel@tonic-gate read_logindevperm_file(); 14458d483882Smlf read_enumerate_file(); 14467c478bd9Sstevel@tonic-gate } 14477c478bd9Sstevel@tonic-gate 14487c478bd9Sstevel@tonic-gate if (module_head != NULL) 14497c478bd9Sstevel@tonic-gate return; 14507c478bd9Sstevel@tonic-gate 14517c478bd9Sstevel@tonic-gate if (strcmp(prog, DEVLINKS) == 0) { 14527c478bd9Sstevel@tonic-gate if (devlinktab_list == NULL) { 14537c478bd9Sstevel@tonic-gate err_print(NO_LINKTAB, devlinktab_file); 14547c478bd9Sstevel@tonic-gate err_print(NO_MODULES, module_dirs); 14557c478bd9Sstevel@tonic-gate err_print(ABORTING); 14567c478bd9Sstevel@tonic-gate devfsadm_exit(1); 1457537714daSvikram /*NOTREACHED*/ 14587c478bd9Sstevel@tonic-gate } 14597c478bd9Sstevel@tonic-gate } else { 14607c478bd9Sstevel@tonic-gate err_print(NO_MODULES, module_dirs); 14617c478bd9Sstevel@tonic-gate if (strcmp(prog, DEVFSADM) == 0) { 14627c478bd9Sstevel@tonic-gate err_print(MODIFY_PATH); 14637c478bd9Sstevel@tonic-gate } 14647c478bd9Sstevel@tonic-gate } 14657c478bd9Sstevel@tonic-gate } 14667c478bd9Sstevel@tonic-gate 1467ff2aee48Scth /* 1468ff2aee48Scth * Unlock the device. If we are processing a CACHE_STATE call, we signal a 1469ff2aee48Scth * minor_fini_thread delayed SYNC_STATE at the end of the call. If we are 1470ff2aee48Scth * processing a SYNC_STATE call, we cancel any minor_fini_thread SYNC_STATE 1471ff2aee48Scth * at both the start and end of the call since we will be doing the SYNC_STATE. 1472ff2aee48Scth */ 14737c478bd9Sstevel@tonic-gate static void 14747c478bd9Sstevel@tonic-gate unlock_dev(int flag) 14757c478bd9Sstevel@tonic-gate { 1476ff2aee48Scth assert(flag == SYNC_STATE || flag == CACHE_STATE); 1477ff2aee48Scth 14787c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "unlock_dev(): entered\n"); 14797c478bd9Sstevel@tonic-gate 1480ff2aee48Scth /* If we are starting a SYNC_STATE, cancel minor_fini_thread SYNC */ 1481ff2aee48Scth if (flag == SYNC_STATE) { 1482ff2aee48Scth (void) mutex_lock(&minor_fini_mutex); 1483ff2aee48Scth minor_fini_canceled = TRUE; 1484ff2aee48Scth minor_fini_delayed = FALSE; 1485ff2aee48Scth (void) mutex_unlock(&minor_fini_mutex); 1486ff2aee48Scth } 1487ff2aee48Scth 14887c478bd9Sstevel@tonic-gate if (build_dev == FALSE) 14897c478bd9Sstevel@tonic-gate return; 14907c478bd9Sstevel@tonic-gate 1491568e756aSvikram if (devlink_cache == NULL) { 1492568e756aSvikram err_print(NO_DEVLINK_CACHE); 1493568e756aSvikram } 14947c478bd9Sstevel@tonic-gate assert(devlink_cache); 14957c478bd9Sstevel@tonic-gate 14967c478bd9Sstevel@tonic-gate if (flag == SYNC_STATE) { 14977c478bd9Sstevel@tonic-gate unload_modules(); 14987c478bd9Sstevel@tonic-gate if (update_database) 14997c478bd9Sstevel@tonic-gate (void) di_devlink_update(devlink_cache); 15007c478bd9Sstevel@tonic-gate (void) di_devlink_close(&devlink_cache, 0); 1501f05faa4eSjacobs 1502f05faa4eSjacobs /* 1503f05faa4eSjacobs * now that the devlinks db cache has been flushed, it is safe 1504f05faa4eSjacobs * to send any sysevents that were queued up. 1505f05faa4eSjacobs */ 1506f05faa4eSjacobs process_syseventq(); 15077c478bd9Sstevel@tonic-gate } 15087c478bd9Sstevel@tonic-gate 1509537714daSvikram exit_dev_lock(0); 15107c478bd9Sstevel@tonic-gate 1511ff2aee48Scth (void) mutex_lock(&minor_fini_mutex); 1512ff2aee48Scth if (flag == SYNC_STATE) { 1513ff2aee48Scth /* We did a SYNC_STATE, cancel minor_fini_thread SYNC */ 1514ff2aee48Scth minor_fini_canceled = TRUE; 1515ff2aee48Scth minor_fini_delayed = FALSE; 1516ff2aee48Scth } else { 1517ff2aee48Scth /* We did a CACHE_STATE, start delayed minor_fini_thread SYNC */ 1518ff2aee48Scth minor_fini_canceled = FALSE; 1519ff2aee48Scth minor_fini_delayed = TRUE; 1520ff2aee48Scth (void) cond_signal(&minor_fini_cv); 1521ff2aee48Scth } 1522ff2aee48Scth (void) mutex_unlock(&minor_fini_mutex); 1523ff2aee48Scth 15247c478bd9Sstevel@tonic-gate (void) sema_post(&dev_sema); 15257c478bd9Sstevel@tonic-gate } 15267c478bd9Sstevel@tonic-gate 15277c478bd9Sstevel@tonic-gate /* 15287c478bd9Sstevel@tonic-gate * Check that if -r is set, it is not any part of a zone--- that is, that 15297c478bd9Sstevel@tonic-gate * the zonepath is not a substring of the root path. 15307c478bd9Sstevel@tonic-gate */ 15317c478bd9Sstevel@tonic-gate static int 15327c478bd9Sstevel@tonic-gate zone_pathcheck(char *checkpath) 15337c478bd9Sstevel@tonic-gate { 15347c478bd9Sstevel@tonic-gate void *dlhdl = NULL; 15357c478bd9Sstevel@tonic-gate char *name; 15367c478bd9Sstevel@tonic-gate char root[MAXPATHLEN]; /* resolved devfsadm root path */ 15377c478bd9Sstevel@tonic-gate char zroot[MAXPATHLEN]; /* zone root path */ 15387c478bd9Sstevel@tonic-gate char rzroot[MAXPATHLEN]; /* resolved zone root path */ 1539facf4a8dSllai char tmp[MAXPATHLEN]; 15407c478bd9Sstevel@tonic-gate FILE *cookie; 15417c478bd9Sstevel@tonic-gate int err = DEVFSADM_SUCCESS; 15427c478bd9Sstevel@tonic-gate 15437c478bd9Sstevel@tonic-gate if (checkpath[0] == '\0') 15447c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 15457c478bd9Sstevel@tonic-gate 15467c478bd9Sstevel@tonic-gate /* 15477c478bd9Sstevel@tonic-gate * Check if zones is available on this system. 15487c478bd9Sstevel@tonic-gate */ 15497c478bd9Sstevel@tonic-gate if ((dlhdl = dlopen(LIBZONECFG_PATH, RTLD_LAZY)) == NULL) { 15507c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 15517c478bd9Sstevel@tonic-gate } 15527c478bd9Sstevel@tonic-gate 15537c478bd9Sstevel@tonic-gate bzero(root, sizeof (root)); 15547c478bd9Sstevel@tonic-gate if (resolvepath(checkpath, root, sizeof (root) - 1) == -1) { 15557c478bd9Sstevel@tonic-gate /* 1556facf4a8dSllai * In this case the user has done "devfsadm -r" on some path 15577c478bd9Sstevel@tonic-gate * which does not yet exist, or we got some other misc. error. 15587c478bd9Sstevel@tonic-gate * We punt and don't resolve the path in this case. 15597c478bd9Sstevel@tonic-gate */ 15607c478bd9Sstevel@tonic-gate (void) strlcpy(root, checkpath, sizeof (root)); 15617c478bd9Sstevel@tonic-gate } 15627c478bd9Sstevel@tonic-gate 15637c478bd9Sstevel@tonic-gate if (strlen(root) > 0 && (root[strlen(root) - 1] != '/')) { 15647c478bd9Sstevel@tonic-gate (void) snprintf(tmp, sizeof (tmp), "%s/", root); 15657c478bd9Sstevel@tonic-gate (void) strlcpy(root, tmp, sizeof (root)); 15667c478bd9Sstevel@tonic-gate } 15677c478bd9Sstevel@tonic-gate 15687c478bd9Sstevel@tonic-gate cookie = setzoneent(); 15697c478bd9Sstevel@tonic-gate while ((name = getzoneent(cookie)) != NULL) { 15707c478bd9Sstevel@tonic-gate /* Skip the global zone */ 15717c478bd9Sstevel@tonic-gate if (strcmp(name, GLOBAL_ZONENAME) == 0) { 15727c478bd9Sstevel@tonic-gate free(name); 15737c478bd9Sstevel@tonic-gate continue; 15747c478bd9Sstevel@tonic-gate } 15757c478bd9Sstevel@tonic-gate 15767c478bd9Sstevel@tonic-gate if (zone_get_zonepath(name, zroot, sizeof (zroot)) != Z_OK) { 15777c478bd9Sstevel@tonic-gate free(name); 15787c478bd9Sstevel@tonic-gate continue; 15797c478bd9Sstevel@tonic-gate } 15807c478bd9Sstevel@tonic-gate 15817c478bd9Sstevel@tonic-gate bzero(rzroot, sizeof (rzroot)); 15827c478bd9Sstevel@tonic-gate if (resolvepath(zroot, rzroot, sizeof (rzroot) - 1) == -1) { 15837c478bd9Sstevel@tonic-gate /* 15847c478bd9Sstevel@tonic-gate * Zone path doesn't exist, or other misc error, 15857c478bd9Sstevel@tonic-gate * so we try using the non-resolved pathname. 15867c478bd9Sstevel@tonic-gate */ 15877c478bd9Sstevel@tonic-gate (void) strlcpy(rzroot, zroot, sizeof (rzroot)); 15887c478bd9Sstevel@tonic-gate } 15897c478bd9Sstevel@tonic-gate if (strlen(rzroot) > 0 && (rzroot[strlen(rzroot) - 1] != '/')) { 15907c478bd9Sstevel@tonic-gate (void) snprintf(tmp, sizeof (tmp), "%s/", rzroot); 15917c478bd9Sstevel@tonic-gate (void) strlcpy(rzroot, tmp, sizeof (rzroot)); 15927c478bd9Sstevel@tonic-gate } 15937c478bd9Sstevel@tonic-gate 15947c478bd9Sstevel@tonic-gate /* 15957c478bd9Sstevel@tonic-gate * Finally, the comparison. If the zone root path is a 15967c478bd9Sstevel@tonic-gate * leading substring of the root path, fail. 15977c478bd9Sstevel@tonic-gate */ 15987c478bd9Sstevel@tonic-gate if (strncmp(rzroot, root, strlen(rzroot)) == 0) { 15997c478bd9Sstevel@tonic-gate err_print(ZONE_PATHCHECK, root, name); 16007c478bd9Sstevel@tonic-gate err = DEVFSADM_FAILURE; 16017c478bd9Sstevel@tonic-gate free(name); 16027c478bd9Sstevel@tonic-gate break; 16037c478bd9Sstevel@tonic-gate } 16047c478bd9Sstevel@tonic-gate free(name); 16057c478bd9Sstevel@tonic-gate } 16067c478bd9Sstevel@tonic-gate endzoneent(cookie); 16077c478bd9Sstevel@tonic-gate (void) dlclose(dlhdl); 16087c478bd9Sstevel@tonic-gate return (err); 16097c478bd9Sstevel@tonic-gate } 16107c478bd9Sstevel@tonic-gate 16117c478bd9Sstevel@tonic-gate /* 16127c478bd9Sstevel@tonic-gate * Called by the daemon when it receives an event from the devfsadm SLM 16137c478bd9Sstevel@tonic-gate * to syseventd. 16147c478bd9Sstevel@tonic-gate * 16157c478bd9Sstevel@tonic-gate * The devfsadm SLM uses a private event channel for communication to 16167c478bd9Sstevel@tonic-gate * devfsadmd set-up via private libsysevent interfaces. This handler is 16177c478bd9Sstevel@tonic-gate * used to bind to the devfsadmd channel for event delivery. 16187c478bd9Sstevel@tonic-gate * The devfsadmd SLM insures single calls to this routine as well as 16197c478bd9Sstevel@tonic-gate * synchronized event delivery. 16207c478bd9Sstevel@tonic-gate * 16217c478bd9Sstevel@tonic-gate */ 16227c478bd9Sstevel@tonic-gate static void 16237c478bd9Sstevel@tonic-gate event_handler(sysevent_t *ev) 16247c478bd9Sstevel@tonic-gate { 16257c478bd9Sstevel@tonic-gate char *path; 16267c478bd9Sstevel@tonic-gate char *minor; 16277c478bd9Sstevel@tonic-gate char *subclass; 16287c478bd9Sstevel@tonic-gate char *dev_ev_subclass; 16297c478bd9Sstevel@tonic-gate char *driver_name; 16307c478bd9Sstevel@tonic-gate nvlist_t *attr_list = NULL; 16317c478bd9Sstevel@tonic-gate int err = 0; 16327c478bd9Sstevel@tonic-gate int instance; 16337c478bd9Sstevel@tonic-gate int branch_event = 0; 16347c478bd9Sstevel@tonic-gate 16357e3e5701SJan Parcel /* 16367e3e5701SJan Parcel * If this is event-driven, then we cannot trust the static devlist 16377e3e5701SJan Parcel * to be correct. 16387e3e5701SJan Parcel */ 16397e3e5701SJan Parcel 16407e3e5701SJan Parcel event_driven = TRUE; 16417c478bd9Sstevel@tonic-gate subclass = sysevent_get_subclass_name(ev); 16427c478bd9Sstevel@tonic-gate vprint(EVENT_MID, "event_handler: %s id:0X%llx\n", 16437c478bd9Sstevel@tonic-gate subclass, sysevent_get_seq(ev)); 16447c478bd9Sstevel@tonic-gate 1645facf4a8dSllai if (strcmp(subclass, ESC_DEVFS_START) == 0) { 1646facf4a8dSllai return; 1647facf4a8dSllai } 1648facf4a8dSllai 16497c478bd9Sstevel@tonic-gate /* Check if event is an instance modification */ 16507c478bd9Sstevel@tonic-gate if (strcmp(subclass, ESC_DEVFS_INSTANCE_MOD) == 0) { 16517c478bd9Sstevel@tonic-gate devfs_instance_mod(); 16527c478bd9Sstevel@tonic-gate return; 16537c478bd9Sstevel@tonic-gate } 16547c478bd9Sstevel@tonic-gate if (sysevent_get_attr_list(ev, &attr_list) != 0) { 16557c478bd9Sstevel@tonic-gate vprint(EVENT_MID, "event_handler: can not get attr list\n"); 16567c478bd9Sstevel@tonic-gate return; 16577c478bd9Sstevel@tonic-gate } 16587c478bd9Sstevel@tonic-gate 16597c478bd9Sstevel@tonic-gate if (strcmp(subclass, ESC_DEVFS_DEVI_ADD) == 0 || 16607c478bd9Sstevel@tonic-gate strcmp(subclass, ESC_DEVFS_DEVI_REMOVE) == 0 || 16617c478bd9Sstevel@tonic-gate strcmp(subclass, ESC_DEVFS_MINOR_CREATE) == 0 || 16627c478bd9Sstevel@tonic-gate strcmp(subclass, ESC_DEVFS_MINOR_REMOVE) == 0) { 16637c478bd9Sstevel@tonic-gate if ((err = nvlist_lookup_string(attr_list, DEVFS_PATHNAME, 16647c478bd9Sstevel@tonic-gate &path)) != 0) 16657c478bd9Sstevel@tonic-gate goto out; 16667c478bd9Sstevel@tonic-gate 166730294554Sphitran if (nvlist_lookup_string(attr_list, DEVFS_DEVI_CLASS, 166830294554Sphitran &dev_ev_subclass) != 0) 166930294554Sphitran dev_ev_subclass = NULL; 16707c478bd9Sstevel@tonic-gate 167130294554Sphitran if (nvlist_lookup_string(attr_list, DEVFS_DRIVER_NAME, 167230294554Sphitran &driver_name) != 0) 167330294554Sphitran driver_name = NULL; 16747c478bd9Sstevel@tonic-gate 167530294554Sphitran if (nvlist_lookup_int32(attr_list, DEVFS_INSTANCE, 167630294554Sphitran &instance) != 0) 167730294554Sphitran instance = -1; 16787c478bd9Sstevel@tonic-gate 167930294554Sphitran if (nvlist_lookup_int32(attr_list, DEVFS_BRANCH_EVENT, 168030294554Sphitran &branch_event) != 0) 168130294554Sphitran branch_event = 0; 16827c478bd9Sstevel@tonic-gate 168330294554Sphitran if (nvlist_lookup_string(attr_list, DEVFS_MINOR_NAME, 168430294554Sphitran &minor) != 0) 168530294554Sphitran minor = NULL; 16867c478bd9Sstevel@tonic-gate 16877c478bd9Sstevel@tonic-gate lock_dev(); 16887c478bd9Sstevel@tonic-gate 16897c478bd9Sstevel@tonic-gate if (strcmp(ESC_DEVFS_DEVI_ADD, subclass) == 0) { 16907c478bd9Sstevel@tonic-gate add_minor_pathname(path, NULL, dev_ev_subclass); 16917c478bd9Sstevel@tonic-gate if (branch_event) { 1692f05faa4eSjacobs build_and_enq_event(EC_DEV_BRANCH, 169330294554Sphitran ESC_DEV_BRANCH_ADD, path, DI_NODE_NIL, 169430294554Sphitran NULL); 16957c478bd9Sstevel@tonic-gate } 16967c478bd9Sstevel@tonic-gate 16977c478bd9Sstevel@tonic-gate } else if (strcmp(ESC_DEVFS_MINOR_CREATE, subclass) == 0) { 169830294554Sphitran add_minor_pathname(path, minor, dev_ev_subclass); 16997c478bd9Sstevel@tonic-gate 17007c478bd9Sstevel@tonic-gate } else if (strcmp(ESC_DEVFS_MINOR_REMOVE, subclass) == 0) { 170130294554Sphitran hot_cleanup(path, minor, dev_ev_subclass, driver_name, 170230294554Sphitran instance); 17037c478bd9Sstevel@tonic-gate 17047c478bd9Sstevel@tonic-gate } else { /* ESC_DEVFS_DEVI_REMOVE */ 17057c478bd9Sstevel@tonic-gate hot_cleanup(path, NULL, dev_ev_subclass, 17067c478bd9Sstevel@tonic-gate driver_name, instance); 17077c478bd9Sstevel@tonic-gate if (branch_event) { 1708f05faa4eSjacobs build_and_enq_event(EC_DEV_BRANCH, 170930294554Sphitran ESC_DEV_BRANCH_REMOVE, path, DI_NODE_NIL, 171030294554Sphitran NULL); 17117c478bd9Sstevel@tonic-gate } 17127c478bd9Sstevel@tonic-gate } 17137c478bd9Sstevel@tonic-gate 17147c478bd9Sstevel@tonic-gate unlock_dev(CACHE_STATE); 17157c478bd9Sstevel@tonic-gate 17167c478bd9Sstevel@tonic-gate } else if (strcmp(subclass, ESC_DEVFS_BRANCH_ADD) == 0 || 17177c478bd9Sstevel@tonic-gate strcmp(subclass, ESC_DEVFS_BRANCH_REMOVE) == 0) { 17187c478bd9Sstevel@tonic-gate if ((err = nvlist_lookup_string(attr_list, 17197c478bd9Sstevel@tonic-gate DEVFS_PATHNAME, &path)) != 0) 17207c478bd9Sstevel@tonic-gate goto out; 17217c478bd9Sstevel@tonic-gate 17227c478bd9Sstevel@tonic-gate /* just log ESC_DEV_BRANCH... event */ 17237c478bd9Sstevel@tonic-gate if (strcmp(subclass, ESC_DEVFS_BRANCH_ADD) == 0) 17247c478bd9Sstevel@tonic-gate dev_ev_subclass = ESC_DEV_BRANCH_ADD; 17257c478bd9Sstevel@tonic-gate else 17267c478bd9Sstevel@tonic-gate dev_ev_subclass = ESC_DEV_BRANCH_REMOVE; 17277c478bd9Sstevel@tonic-gate 1728d2596142Scth lock_dev(); 1729f05faa4eSjacobs build_and_enq_event(EC_DEV_BRANCH, dev_ev_subclass, path, 173030294554Sphitran DI_NODE_NIL, NULL); 1731d2596142Scth unlock_dev(CACHE_STATE); 17327c478bd9Sstevel@tonic-gate } else 17337c478bd9Sstevel@tonic-gate err_print(UNKNOWN_EVENT, subclass); 17347c478bd9Sstevel@tonic-gate 17357c478bd9Sstevel@tonic-gate out: 17367c478bd9Sstevel@tonic-gate if (err) 17377c478bd9Sstevel@tonic-gate err_print(EVENT_ATTR_LOOKUP_FAILED, strerror(err)); 17387c478bd9Sstevel@tonic-gate nvlist_free(attr_list); 17397c478bd9Sstevel@tonic-gate } 17407c478bd9Sstevel@tonic-gate 17417c478bd9Sstevel@tonic-gate static void 17427c478bd9Sstevel@tonic-gate dca_impl_init(char *root, char *minor, struct dca_impl *dcip) 17437c478bd9Sstevel@tonic-gate { 17447c478bd9Sstevel@tonic-gate assert(root); 17457c478bd9Sstevel@tonic-gate 17467c478bd9Sstevel@tonic-gate dcip->dci_root = root; 17477c478bd9Sstevel@tonic-gate dcip->dci_minor = minor; 17487c478bd9Sstevel@tonic-gate dcip->dci_driver = NULL; 17497c478bd9Sstevel@tonic-gate dcip->dci_error = 0; 17507c478bd9Sstevel@tonic-gate dcip->dci_flags = 0; 17517c478bd9Sstevel@tonic-gate dcip->dci_arg = NULL; 17527c478bd9Sstevel@tonic-gate } 17537c478bd9Sstevel@tonic-gate 17547c478bd9Sstevel@tonic-gate /* 17557c478bd9Sstevel@tonic-gate * Kernel logs a message when a devinfo node is attached. Try to create 17567c478bd9Sstevel@tonic-gate * /dev and /devices for each minor node. minorname can be NULL. 17577c478bd9Sstevel@tonic-gate */ 17587c478bd9Sstevel@tonic-gate void 17597c478bd9Sstevel@tonic-gate add_minor_pathname(char *node, char *minor, char *ev_subclass) 17607c478bd9Sstevel@tonic-gate { 17617c478bd9Sstevel@tonic-gate struct dca_impl dci; 17627c478bd9Sstevel@tonic-gate 17637c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "add_minor_pathname: node_path=%s minor=%s\n", 17647c478bd9Sstevel@tonic-gate node, minor ? minor : "NULL"); 17657c478bd9Sstevel@tonic-gate 17667c478bd9Sstevel@tonic-gate dca_impl_init(node, minor, &dci); 17677c478bd9Sstevel@tonic-gate 17687c478bd9Sstevel@tonic-gate /* 17697c478bd9Sstevel@tonic-gate * Restrict hotplug link creation if daemon 17707c478bd9Sstevel@tonic-gate * started with -i option. 17717c478bd9Sstevel@tonic-gate */ 17727c478bd9Sstevel@tonic-gate if (single_drv == TRUE) { 17737c478bd9Sstevel@tonic-gate dci.dci_driver = driver; 17747c478bd9Sstevel@tonic-gate } 17757c478bd9Sstevel@tonic-gate 17767c478bd9Sstevel@tonic-gate /* 17770dc974a9SCathy Zhou * We are being invoked in response to a hotplug event. 17787c478bd9Sstevel@tonic-gate */ 17797c478bd9Sstevel@tonic-gate dci.dci_flags = DCA_HOT_PLUG | DCA_CHECK_TYPE; 17807c478bd9Sstevel@tonic-gate 17817c478bd9Sstevel@tonic-gate devi_tree_walk(&dci, DINFOPROP|DINFOMINOR, ev_subclass); 17827c478bd9Sstevel@tonic-gate } 17837c478bd9Sstevel@tonic-gate 17847c478bd9Sstevel@tonic-gate static di_node_t 17857c478bd9Sstevel@tonic-gate find_clone_node() 17867c478bd9Sstevel@tonic-gate { 17877c478bd9Sstevel@tonic-gate static di_node_t clone_node = DI_NODE_NIL; 17887c478bd9Sstevel@tonic-gate 17897c478bd9Sstevel@tonic-gate if (clone_node == DI_NODE_NIL) 17907c478bd9Sstevel@tonic-gate clone_node = di_init("/pseudo/clone@0", DINFOPROP); 17917c478bd9Sstevel@tonic-gate return (clone_node); 17927c478bd9Sstevel@tonic-gate } 17937c478bd9Sstevel@tonic-gate 17947c478bd9Sstevel@tonic-gate static int 17957c478bd9Sstevel@tonic-gate is_descendent_of(di_node_t node, char *driver) 17967c478bd9Sstevel@tonic-gate { 17977c478bd9Sstevel@tonic-gate while (node != DI_NODE_NIL) { 17987c478bd9Sstevel@tonic-gate char *drv = di_driver_name(node); 17997c478bd9Sstevel@tonic-gate if (strcmp(drv, driver) == 0) 18007c478bd9Sstevel@tonic-gate return (1); 18017c478bd9Sstevel@tonic-gate node = di_parent_node(node); 18027c478bd9Sstevel@tonic-gate } 18037c478bd9Sstevel@tonic-gate return (0); 18047c478bd9Sstevel@tonic-gate } 18057c478bd9Sstevel@tonic-gate 18067c478bd9Sstevel@tonic-gate /* 18077c478bd9Sstevel@tonic-gate * Checks the minor type. If it is an alias node, then lookup 18087c478bd9Sstevel@tonic-gate * the real node/minor first, then call minor_process() to 18097c478bd9Sstevel@tonic-gate * do the real work. 18107c478bd9Sstevel@tonic-gate */ 18117c478bd9Sstevel@tonic-gate static int 18127c478bd9Sstevel@tonic-gate check_minor_type(di_node_t node, di_minor_t minor, void *arg) 18137c478bd9Sstevel@tonic-gate { 18147c478bd9Sstevel@tonic-gate ddi_minor_type minor_type; 18157c478bd9Sstevel@tonic-gate di_node_t clone_node; 18167c478bd9Sstevel@tonic-gate char *mn; 18177c478bd9Sstevel@tonic-gate char *nt; 18187c478bd9Sstevel@tonic-gate struct mlist *dep; 18197c478bd9Sstevel@tonic-gate struct dca_impl *dcip = arg; 18207c478bd9Sstevel@tonic-gate 18217c478bd9Sstevel@tonic-gate assert(dcip); 18227c478bd9Sstevel@tonic-gate 18237c478bd9Sstevel@tonic-gate dep = dcip->dci_arg; 18247c478bd9Sstevel@tonic-gate 18257c478bd9Sstevel@tonic-gate mn = di_minor_name(minor); 18267c478bd9Sstevel@tonic-gate 18277c478bd9Sstevel@tonic-gate /* 18287c478bd9Sstevel@tonic-gate * We match driver here instead of in minor_process 18297c478bd9Sstevel@tonic-gate * as we want the actual driver name. This check is 18307c478bd9Sstevel@tonic-gate * unnecessary during deferred processing. 18317c478bd9Sstevel@tonic-gate */ 18327c478bd9Sstevel@tonic-gate if (dep && 18337c478bd9Sstevel@tonic-gate ((dcip->dci_driver && !is_descendent_of(node, dcip->dci_driver)) || 18347c478bd9Sstevel@tonic-gate (dcip->dci_minor && strcmp(mn, dcip->dci_minor)))) { 18357c478bd9Sstevel@tonic-gate return (DI_WALK_CONTINUE); 18367c478bd9Sstevel@tonic-gate } 18377c478bd9Sstevel@tonic-gate 18387c478bd9Sstevel@tonic-gate if ((dcip->dci_flags & DCA_CHECK_TYPE) && 18397c478bd9Sstevel@tonic-gate (nt = di_minor_nodetype(minor)) && 1840210db224Sericheng (strcmp(nt, DDI_NT_NET) == 0)) { 18417c478bd9Sstevel@tonic-gate dcip->dci_flags &= ~DCA_CHECK_TYPE; 18427c478bd9Sstevel@tonic-gate } 18437c478bd9Sstevel@tonic-gate 18447c478bd9Sstevel@tonic-gate minor_type = di_minor_type(minor); 18457c478bd9Sstevel@tonic-gate 18467c478bd9Sstevel@tonic-gate if (minor_type == DDM_MINOR) { 18477c478bd9Sstevel@tonic-gate minor_process(node, minor, dep); 18487c478bd9Sstevel@tonic-gate 18497c478bd9Sstevel@tonic-gate } else if (minor_type == DDM_ALIAS) { 18507c478bd9Sstevel@tonic-gate struct mlist *cdep, clone_del = {0}; 18517c478bd9Sstevel@tonic-gate 18527c478bd9Sstevel@tonic-gate clone_node = find_clone_node(); 18537c478bd9Sstevel@tonic-gate if (clone_node == DI_NODE_NIL) { 18547c478bd9Sstevel@tonic-gate err_print(DI_INIT_FAILED, "clone", strerror(errno)); 18557c478bd9Sstevel@tonic-gate return (DI_WALK_CONTINUE); 18567c478bd9Sstevel@tonic-gate } 18577c478bd9Sstevel@tonic-gate 18587c478bd9Sstevel@tonic-gate cdep = dep ? &clone_del : NULL; 18597c478bd9Sstevel@tonic-gate 18607c478bd9Sstevel@tonic-gate minor_process(clone_node, minor, cdep); 18617c478bd9Sstevel@tonic-gate 18627c478bd9Sstevel@tonic-gate /* 18637c478bd9Sstevel@tonic-gate * cache "alias" minor node and free "clone" minor 18647c478bd9Sstevel@tonic-gate */ 18657c478bd9Sstevel@tonic-gate if (cdep != NULL && cdep->head != NULL) { 18667c478bd9Sstevel@tonic-gate assert(cdep->tail != NULL); 18677c478bd9Sstevel@tonic-gate cache_deferred_minor(dep, node, minor); 18687c478bd9Sstevel@tonic-gate dcip->dci_arg = cdep; 18697c478bd9Sstevel@tonic-gate process_deferred_links(dcip, DCA_FREE_LIST); 18707c478bd9Sstevel@tonic-gate dcip->dci_arg = dep; 18717c478bd9Sstevel@tonic-gate } 18727c478bd9Sstevel@tonic-gate } 18737c478bd9Sstevel@tonic-gate 18747c478bd9Sstevel@tonic-gate return (DI_WALK_CONTINUE); 18757c478bd9Sstevel@tonic-gate } 18767c478bd9Sstevel@tonic-gate 18777c478bd9Sstevel@tonic-gate 18787c478bd9Sstevel@tonic-gate /* 18797c478bd9Sstevel@tonic-gate * This is the entry point for each minor node, whether walking 18807c478bd9Sstevel@tonic-gate * the entire tree via di_walk_minor() or processing a hotplug event 18817c478bd9Sstevel@tonic-gate * for a single devinfo node (via hotplug ndi_devi_online()). 18827c478bd9Sstevel@tonic-gate */ 18837c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 18847c478bd9Sstevel@tonic-gate static void 18857c478bd9Sstevel@tonic-gate minor_process(di_node_t node, di_minor_t minor, struct mlist *dep) 18867c478bd9Sstevel@tonic-gate { 18877c478bd9Sstevel@tonic-gate create_list_t *create; 18887c478bd9Sstevel@tonic-gate int defer; 18897c478bd9Sstevel@tonic-gate 18907c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "minor_process: node=%s, minor=%s\n", 18910a653502Swroche di_node_name(node), di_minor_name(minor)); 18927c478bd9Sstevel@tonic-gate 18937c478bd9Sstevel@tonic-gate if (dep != NULL) { 18947c478bd9Sstevel@tonic-gate 18957c478bd9Sstevel@tonic-gate /* 18967c478bd9Sstevel@tonic-gate * Reset /devices node to minor_perm perm/ownership 18977c478bd9Sstevel@tonic-gate * if we are here to deactivate device allocation 18987c478bd9Sstevel@tonic-gate */ 18997c478bd9Sstevel@tonic-gate if (build_devices == TRUE) { 19007c478bd9Sstevel@tonic-gate reset_node_permissions(node, minor); 19017c478bd9Sstevel@tonic-gate } 19027c478bd9Sstevel@tonic-gate 19037c478bd9Sstevel@tonic-gate if (build_dev == FALSE) { 19047c478bd9Sstevel@tonic-gate return; 19057c478bd9Sstevel@tonic-gate } 19067c478bd9Sstevel@tonic-gate 19077c478bd9Sstevel@tonic-gate /* 19087c478bd9Sstevel@tonic-gate * This function will create any nodes for /etc/devlink.tab. 19097c478bd9Sstevel@tonic-gate * If devlink.tab handles link creation, we don't call any 19107c478bd9Sstevel@tonic-gate * devfsadm modules since that could cause duplicate caching 19117c478bd9Sstevel@tonic-gate * in the enumerate functions if different re strings are 19127c478bd9Sstevel@tonic-gate * passed that are logically identical. I'm still not 19137c478bd9Sstevel@tonic-gate * convinced this would cause any harm, but better to be safe. 19147c478bd9Sstevel@tonic-gate * 19157c478bd9Sstevel@tonic-gate * Deferred processing is available only for devlinks 19167c478bd9Sstevel@tonic-gate * created through devfsadm modules. 19177c478bd9Sstevel@tonic-gate */ 19187c478bd9Sstevel@tonic-gate if (process_devlink_compat(minor, node) == TRUE) { 19197c478bd9Sstevel@tonic-gate return; 19207c478bd9Sstevel@tonic-gate } 19217c478bd9Sstevel@tonic-gate } else { 19227c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "minor_process: deferred processing\n"); 19237c478bd9Sstevel@tonic-gate } 19247c478bd9Sstevel@tonic-gate 19257c478bd9Sstevel@tonic-gate /* 19267c478bd9Sstevel@tonic-gate * look for relevant link create rules in the modules, and 19277c478bd9Sstevel@tonic-gate * invoke the link create callback function to build a link 19287c478bd9Sstevel@tonic-gate * if there is a match. 19297c478bd9Sstevel@tonic-gate */ 19307c478bd9Sstevel@tonic-gate defer = 0; 19317c478bd9Sstevel@tonic-gate for (create = create_head; create != NULL; create = create->next) { 19327c478bd9Sstevel@tonic-gate if ((minor_matches_rule(node, minor, create) == TRUE) && 19337c478bd9Sstevel@tonic-gate class_ok(create->create->device_class) == 19347c478bd9Sstevel@tonic-gate DEVFSADM_SUCCESS) { 19357c478bd9Sstevel@tonic-gate if (call_minor_init(create->modptr) == 19367c478bd9Sstevel@tonic-gate DEVFSADM_FAILURE) { 19377c478bd9Sstevel@tonic-gate continue; 19387c478bd9Sstevel@tonic-gate } 19397c478bd9Sstevel@tonic-gate 19407c478bd9Sstevel@tonic-gate /* 19417c478bd9Sstevel@tonic-gate * If NOT doing the deferred creates (i.e. 1st pass) and 19427c478bd9Sstevel@tonic-gate * rule requests deferred processing cache the minor 19437c478bd9Sstevel@tonic-gate * data. 19447c478bd9Sstevel@tonic-gate * 19457c478bd9Sstevel@tonic-gate * If deferred processing (2nd pass), create links 19467c478bd9Sstevel@tonic-gate * ONLY if rule requests deferred processing. 19477c478bd9Sstevel@tonic-gate */ 19487c478bd9Sstevel@tonic-gate if (dep && ((create->create->flags & CREATE_MASK) == 19497c478bd9Sstevel@tonic-gate CREATE_DEFER)) { 19507c478bd9Sstevel@tonic-gate defer = 1; 19517c478bd9Sstevel@tonic-gate continue; 19527c478bd9Sstevel@tonic-gate } else if (dep == NULL && 19537c478bd9Sstevel@tonic-gate ((create->create->flags & CREATE_MASK) != 19547c478bd9Sstevel@tonic-gate CREATE_DEFER)) { 19557c478bd9Sstevel@tonic-gate continue; 19567c478bd9Sstevel@tonic-gate } 19577c478bd9Sstevel@tonic-gate 19587c478bd9Sstevel@tonic-gate if ((*(create->create->callback_fcn)) 19597c478bd9Sstevel@tonic-gate (minor, node) == DEVFSADM_TERMINATE) { 19607c478bd9Sstevel@tonic-gate break; 19617c478bd9Sstevel@tonic-gate } 19627c478bd9Sstevel@tonic-gate } 19637c478bd9Sstevel@tonic-gate } 19647c478bd9Sstevel@tonic-gate 19657c478bd9Sstevel@tonic-gate if (defer) 19667c478bd9Sstevel@tonic-gate cache_deferred_minor(dep, node, minor); 19677c478bd9Sstevel@tonic-gate } 19687c478bd9Sstevel@tonic-gate 19697c478bd9Sstevel@tonic-gate 19707c478bd9Sstevel@tonic-gate /* 19717c478bd9Sstevel@tonic-gate * Cache node and minor in defer list. 19727c478bd9Sstevel@tonic-gate */ 19737c478bd9Sstevel@tonic-gate static void 19747c478bd9Sstevel@tonic-gate cache_deferred_minor( 19757c478bd9Sstevel@tonic-gate struct mlist *dep, 19767c478bd9Sstevel@tonic-gate di_node_t node, 19777c478bd9Sstevel@tonic-gate di_minor_t minor) 19787c478bd9Sstevel@tonic-gate { 19797c478bd9Sstevel@tonic-gate struct minor *mp; 19807c478bd9Sstevel@tonic-gate const char *fcn = "cache_deferred_minor"; 19817c478bd9Sstevel@tonic-gate 19827c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "%s node=%s, minor=%s\n", fcn, 19837c478bd9Sstevel@tonic-gate di_node_name(node), di_minor_name(minor)); 19847c478bd9Sstevel@tonic-gate 19857c478bd9Sstevel@tonic-gate if (dep == NULL) { 19867c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "%s: cannot cache during " 19877c478bd9Sstevel@tonic-gate "deferred processing. Ignoring minor\n", fcn); 19887c478bd9Sstevel@tonic-gate return; 19897c478bd9Sstevel@tonic-gate } 19907c478bd9Sstevel@tonic-gate 19917c478bd9Sstevel@tonic-gate mp = (struct minor *)s_zalloc(sizeof (struct minor)); 19927c478bd9Sstevel@tonic-gate mp->node = node; 19937c478bd9Sstevel@tonic-gate mp->minor = minor; 19947c478bd9Sstevel@tonic-gate mp->next = NULL; 19957c478bd9Sstevel@tonic-gate 19967c478bd9Sstevel@tonic-gate assert(dep->head == NULL || dep->tail != NULL); 19977c478bd9Sstevel@tonic-gate if (dep->head == NULL) { 19987c478bd9Sstevel@tonic-gate dep->head = mp; 19997c478bd9Sstevel@tonic-gate } else { 20007c478bd9Sstevel@tonic-gate dep->tail->next = mp; 20017c478bd9Sstevel@tonic-gate } 20027c478bd9Sstevel@tonic-gate dep->tail = mp; 20037c478bd9Sstevel@tonic-gate } 20047c478bd9Sstevel@tonic-gate 20057c478bd9Sstevel@tonic-gate /* 20067c478bd9Sstevel@tonic-gate * Check to see if "create" link creation rule matches this node/minor. 20077c478bd9Sstevel@tonic-gate * If it does, return TRUE. 20087c478bd9Sstevel@tonic-gate */ 20097c478bd9Sstevel@tonic-gate static int 20107c478bd9Sstevel@tonic-gate minor_matches_rule(di_node_t node, di_minor_t minor, create_list_t *create) 20117c478bd9Sstevel@tonic-gate { 20127c478bd9Sstevel@tonic-gate char *m_nodetype, *m_drvname; 20137c478bd9Sstevel@tonic-gate 20147c478bd9Sstevel@tonic-gate if (create->create->node_type != NULL) { 20157c478bd9Sstevel@tonic-gate 20167c478bd9Sstevel@tonic-gate m_nodetype = di_minor_nodetype(minor); 20177c478bd9Sstevel@tonic-gate assert(m_nodetype != NULL); 20187c478bd9Sstevel@tonic-gate 20197c478bd9Sstevel@tonic-gate switch (create->create->flags & TYPE_MASK) { 20207c478bd9Sstevel@tonic-gate case TYPE_EXACT: 20217c478bd9Sstevel@tonic-gate if (strcmp(create->create->node_type, m_nodetype) != 20227c478bd9Sstevel@tonic-gate 0) { 20237c478bd9Sstevel@tonic-gate return (FALSE); 20247c478bd9Sstevel@tonic-gate } 20257c478bd9Sstevel@tonic-gate break; 20267c478bd9Sstevel@tonic-gate case TYPE_PARTIAL: 20277c478bd9Sstevel@tonic-gate if (strncmp(create->create->node_type, m_nodetype, 20287c478bd9Sstevel@tonic-gate strlen(create->create->node_type)) != 0) { 20297c478bd9Sstevel@tonic-gate return (FALSE); 20307c478bd9Sstevel@tonic-gate } 20317c478bd9Sstevel@tonic-gate break; 20327c478bd9Sstevel@tonic-gate case TYPE_RE: 20337c478bd9Sstevel@tonic-gate if (regexec(&(create->node_type_comp), m_nodetype, 20347c478bd9Sstevel@tonic-gate 0, NULL, 0) != 0) { 20357c478bd9Sstevel@tonic-gate return (FALSE); 20367c478bd9Sstevel@tonic-gate } 20377c478bd9Sstevel@tonic-gate break; 20387c478bd9Sstevel@tonic-gate } 20397c478bd9Sstevel@tonic-gate } 20407c478bd9Sstevel@tonic-gate 20417c478bd9Sstevel@tonic-gate if (create->create->drv_name != NULL) { 20427c478bd9Sstevel@tonic-gate m_drvname = di_driver_name(node); 20437c478bd9Sstevel@tonic-gate switch (create->create->flags & DRV_MASK) { 20447c478bd9Sstevel@tonic-gate case DRV_EXACT: 20457c478bd9Sstevel@tonic-gate if (strcmp(create->create->drv_name, m_drvname) != 0) { 20467c478bd9Sstevel@tonic-gate return (FALSE); 20477c478bd9Sstevel@tonic-gate } 20487c478bd9Sstevel@tonic-gate break; 20497c478bd9Sstevel@tonic-gate case DRV_RE: 20507c478bd9Sstevel@tonic-gate if (regexec(&(create->drv_name_comp), m_drvname, 20517c478bd9Sstevel@tonic-gate 0, NULL, 0) != 0) { 20527c478bd9Sstevel@tonic-gate return (FALSE); 20537c478bd9Sstevel@tonic-gate } 20547c478bd9Sstevel@tonic-gate break; 20557c478bd9Sstevel@tonic-gate } 20567c478bd9Sstevel@tonic-gate } 20577c478bd9Sstevel@tonic-gate 20587c478bd9Sstevel@tonic-gate return (TRUE); 20597c478bd9Sstevel@tonic-gate } 20607c478bd9Sstevel@tonic-gate 20617c478bd9Sstevel@tonic-gate /* 20627c478bd9Sstevel@tonic-gate * If no classes were given on the command line, then return DEVFSADM_SUCCESS. 20637c478bd9Sstevel@tonic-gate * Otherwise, return DEVFSADM_SUCCESS if the device "class" from the module 20647c478bd9Sstevel@tonic-gate * matches one of the device classes given on the command line, 20657c478bd9Sstevel@tonic-gate * otherwise, return DEVFSADM_FAILURE. 20667c478bd9Sstevel@tonic-gate */ 20677c478bd9Sstevel@tonic-gate static int 20687c478bd9Sstevel@tonic-gate class_ok(char *class) 20697c478bd9Sstevel@tonic-gate { 20707c478bd9Sstevel@tonic-gate int i; 20717c478bd9Sstevel@tonic-gate 20727c478bd9Sstevel@tonic-gate if (num_classes == 0) { 20737c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 20747c478bd9Sstevel@tonic-gate } 20757c478bd9Sstevel@tonic-gate 2076f2dbfd32SRobert Mustacchi /* 2077f2dbfd32SRobert Mustacchi * Some create tabs operate on multiple classes of devices because the 2078f2dbfd32SRobert Mustacchi * kernel doesn't have a good way for a driver to indicate that a 2079f2dbfd32SRobert Mustacchi * particular minor's class is different from that of the dev_info_t 2080f2dbfd32SRobert Mustacchi * it belongs to. As such, we'll always fail to match those here. 2081f2dbfd32SRobert Mustacchi */ 2082f2dbfd32SRobert Mustacchi if (class == NULL) { 2083f2dbfd32SRobert Mustacchi return (DEVFSADM_FAILURE); 2084f2dbfd32SRobert Mustacchi } 2085f2dbfd32SRobert Mustacchi 20867c478bd9Sstevel@tonic-gate for (i = 0; i < num_classes; i++) { 20877c478bd9Sstevel@tonic-gate if (strcmp(class, classes[i]) == 0) { 20887c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 20897c478bd9Sstevel@tonic-gate } 20907c478bd9Sstevel@tonic-gate } 20917c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 20927c478bd9Sstevel@tonic-gate } 20937c478bd9Sstevel@tonic-gate 20947c478bd9Sstevel@tonic-gate /* 20957c478bd9Sstevel@tonic-gate * call minor_fini on active modules, then unload ALL modules 20967c478bd9Sstevel@tonic-gate */ 20977c478bd9Sstevel@tonic-gate static void 20987c478bd9Sstevel@tonic-gate unload_modules(void) 20997c478bd9Sstevel@tonic-gate { 21007c478bd9Sstevel@tonic-gate module_t *module_free; 21017c478bd9Sstevel@tonic-gate create_list_t *create_free; 21027c478bd9Sstevel@tonic-gate remove_list_t *remove_free; 21037c478bd9Sstevel@tonic-gate 21047c478bd9Sstevel@tonic-gate while (create_head != NULL) { 21057c478bd9Sstevel@tonic-gate create_free = create_head; 21067c478bd9Sstevel@tonic-gate create_head = create_head->next; 21077c478bd9Sstevel@tonic-gate 21087c478bd9Sstevel@tonic-gate if ((create_free->create->flags & TYPE_RE) == TYPE_RE) { 21097c478bd9Sstevel@tonic-gate regfree(&(create_free->node_type_comp)); 21107c478bd9Sstevel@tonic-gate } 21117c478bd9Sstevel@tonic-gate if ((create_free->create->flags & DRV_RE) == DRV_RE) { 21127c478bd9Sstevel@tonic-gate regfree(&(create_free->drv_name_comp)); 21137c478bd9Sstevel@tonic-gate } 21147c478bd9Sstevel@tonic-gate free(create_free); 21157c478bd9Sstevel@tonic-gate } 21167c478bd9Sstevel@tonic-gate 21177c478bd9Sstevel@tonic-gate while (remove_head != NULL) { 21187c478bd9Sstevel@tonic-gate remove_free = remove_head; 21197c478bd9Sstevel@tonic-gate remove_head = remove_head->next; 21207c478bd9Sstevel@tonic-gate free(remove_free); 21217c478bd9Sstevel@tonic-gate } 21227c478bd9Sstevel@tonic-gate 21237c478bd9Sstevel@tonic-gate while (module_head != NULL) { 21247c478bd9Sstevel@tonic-gate 21257c478bd9Sstevel@tonic-gate if ((module_head->minor_fini != NULL) && 21267c478bd9Sstevel@tonic-gate ((module_head->flags & MODULE_ACTIVE) == MODULE_ACTIVE)) { 21277c478bd9Sstevel@tonic-gate (void) (*(module_head->minor_fini))(); 21287c478bd9Sstevel@tonic-gate } 21297c478bd9Sstevel@tonic-gate 21307c478bd9Sstevel@tonic-gate vprint(MODLOAD_MID, "unloading module %s\n", module_head->name); 21317c478bd9Sstevel@tonic-gate free(module_head->name); 21327c478bd9Sstevel@tonic-gate (void) dlclose(module_head->dlhandle); 21337c478bd9Sstevel@tonic-gate 21347c478bd9Sstevel@tonic-gate module_free = module_head; 21357c478bd9Sstevel@tonic-gate module_head = module_head->next; 21367c478bd9Sstevel@tonic-gate free(module_free); 21377c478bd9Sstevel@tonic-gate } 21387c478bd9Sstevel@tonic-gate } 21397c478bd9Sstevel@tonic-gate 21407c478bd9Sstevel@tonic-gate /* 21417c478bd9Sstevel@tonic-gate * Load devfsadm logical link processing modules. 21427c478bd9Sstevel@tonic-gate */ 21437c478bd9Sstevel@tonic-gate static void 21447c478bd9Sstevel@tonic-gate load_modules(void) 21457c478bd9Sstevel@tonic-gate { 21467c478bd9Sstevel@tonic-gate DIR *mod_dir; 21474bc0a2efScasper struct dirent *entp; 21487c478bd9Sstevel@tonic-gate char cdir[PATH_MAX + 1]; 21497c478bd9Sstevel@tonic-gate char *last; 21507c478bd9Sstevel@tonic-gate char *mdir = module_dirs; 21517c478bd9Sstevel@tonic-gate char *fcn = "load_modules: "; 21527c478bd9Sstevel@tonic-gate 21537c478bd9Sstevel@tonic-gate while (*mdir != '\0') { 21547c478bd9Sstevel@tonic-gate 21557c478bd9Sstevel@tonic-gate while (*mdir == ':') { 21567c478bd9Sstevel@tonic-gate mdir++; 21577c478bd9Sstevel@tonic-gate } 21587c478bd9Sstevel@tonic-gate 21597c478bd9Sstevel@tonic-gate if (*mdir == '\0') { 21607c478bd9Sstevel@tonic-gate continue; 21617c478bd9Sstevel@tonic-gate } 21627c478bd9Sstevel@tonic-gate 21637c478bd9Sstevel@tonic-gate last = strchr(mdir, ':'); 21647c478bd9Sstevel@tonic-gate 21657c478bd9Sstevel@tonic-gate if (last == NULL) { 21667c478bd9Sstevel@tonic-gate last = mdir + strlen(mdir); 21677c478bd9Sstevel@tonic-gate } 21687c478bd9Sstevel@tonic-gate 21697c478bd9Sstevel@tonic-gate (void) strncpy(cdir, mdir, last - mdir); 21707c478bd9Sstevel@tonic-gate cdir[last - mdir] = '\0'; 21717c478bd9Sstevel@tonic-gate mdir += strlen(cdir); 21727c478bd9Sstevel@tonic-gate 21737c478bd9Sstevel@tonic-gate if ((mod_dir = opendir(cdir)) == NULL) { 21747c478bd9Sstevel@tonic-gate vprint(MODLOAD_MID, "%sopendir(%s): %s\n", 21750a653502Swroche fcn, cdir, strerror(errno)); 21767c478bd9Sstevel@tonic-gate continue; 21777c478bd9Sstevel@tonic-gate } 21787c478bd9Sstevel@tonic-gate 21794bc0a2efScasper while ((entp = readdir(mod_dir)) != NULL) { 21807c478bd9Sstevel@tonic-gate 21817c478bd9Sstevel@tonic-gate if ((strcmp(entp->d_name, ".") == 0) || 21827c478bd9Sstevel@tonic-gate (strcmp(entp->d_name, "..") == 0)) { 21837c478bd9Sstevel@tonic-gate continue; 21847c478bd9Sstevel@tonic-gate } 21857c478bd9Sstevel@tonic-gate 21867c478bd9Sstevel@tonic-gate load_module(entp->d_name, cdir); 21877c478bd9Sstevel@tonic-gate } 21887c478bd9Sstevel@tonic-gate s_closedir(mod_dir); 21897c478bd9Sstevel@tonic-gate } 21907c478bd9Sstevel@tonic-gate } 21917c478bd9Sstevel@tonic-gate 21927c478bd9Sstevel@tonic-gate static void 21937c478bd9Sstevel@tonic-gate load_module(char *mname, char *cdir) 21947c478bd9Sstevel@tonic-gate { 21957c478bd9Sstevel@tonic-gate _devfsadm_create_reg_t *create_reg; 2196aa646b9dSvikram _devfsadm_remove_reg_V1_t *remove_reg; 21977c478bd9Sstevel@tonic-gate create_list_t *create_list_element; 21987c478bd9Sstevel@tonic-gate create_list_t **create_list_next; 21997c478bd9Sstevel@tonic-gate remove_list_t *remove_list_element; 22007c478bd9Sstevel@tonic-gate remove_list_t **remove_list_next; 22017c478bd9Sstevel@tonic-gate char epath[PATH_MAX + 1], *end; 22027c478bd9Sstevel@tonic-gate char *fcn = "load_module: "; 22037c478bd9Sstevel@tonic-gate char *dlerrstr; 22047c478bd9Sstevel@tonic-gate void *dlhandle; 22057c478bd9Sstevel@tonic-gate module_t *module; 2206aa646b9dSvikram int flags; 22077c478bd9Sstevel@tonic-gate int n; 22087c478bd9Sstevel@tonic-gate int i; 22097c478bd9Sstevel@tonic-gate 22107c478bd9Sstevel@tonic-gate /* ignore any file which does not end in '.so' */ 22117c478bd9Sstevel@tonic-gate if ((end = strstr(mname, MODULE_SUFFIX)) != NULL) { 22127c478bd9Sstevel@tonic-gate if (end[strlen(MODULE_SUFFIX)] != '\0') { 22137c478bd9Sstevel@tonic-gate return; 22147c478bd9Sstevel@tonic-gate } 22157c478bd9Sstevel@tonic-gate } else { 22167c478bd9Sstevel@tonic-gate return; 22177c478bd9Sstevel@tonic-gate } 22187c478bd9Sstevel@tonic-gate 22197c478bd9Sstevel@tonic-gate (void) snprintf(epath, sizeof (epath), "%s/%s", cdir, mname); 22207c478bd9Sstevel@tonic-gate 22217c478bd9Sstevel@tonic-gate if ((dlhandle = dlopen(epath, RTLD_LAZY)) == NULL) { 22227c478bd9Sstevel@tonic-gate dlerrstr = dlerror(); 22237c478bd9Sstevel@tonic-gate err_print(DLOPEN_FAILED, epath, 22240a653502Swroche dlerrstr ? dlerrstr : "unknown error"); 22257c478bd9Sstevel@tonic-gate return; 22267c478bd9Sstevel@tonic-gate } 22277c478bd9Sstevel@tonic-gate 22287c478bd9Sstevel@tonic-gate /* dlsym the _devfsadm_create_reg structure */ 22297c478bd9Sstevel@tonic-gate if (NULL == (create_reg = (_devfsadm_create_reg_t *) 22300a653502Swroche dlsym(dlhandle, _DEVFSADM_CREATE_REG))) { 22317c478bd9Sstevel@tonic-gate vprint(MODLOAD_MID, "dlsym(%s, %s): symbol not found\n", epath, 22320a653502Swroche _DEVFSADM_CREATE_REG); 22337c478bd9Sstevel@tonic-gate } else { 22347c478bd9Sstevel@tonic-gate vprint(MODLOAD_MID, "%sdlsym(%s, %s) succeeded\n", 22350a653502Swroche fcn, epath, _DEVFSADM_CREATE_REG); 22367c478bd9Sstevel@tonic-gate } 22377c478bd9Sstevel@tonic-gate 22387c478bd9Sstevel@tonic-gate /* dlsym the _devfsadm_remove_reg structure */ 2239aa646b9dSvikram if (NULL == (remove_reg = (_devfsadm_remove_reg_V1_t *) 22407c478bd9Sstevel@tonic-gate dlsym(dlhandle, _DEVFSADM_REMOVE_REG))) { 22417c478bd9Sstevel@tonic-gate vprint(MODLOAD_MID, "dlsym(%s,\n\t%s): symbol not found\n", 22420a653502Swroche epath, _DEVFSADM_REMOVE_REG); 22437c478bd9Sstevel@tonic-gate } else { 22447c478bd9Sstevel@tonic-gate vprint(MODLOAD_MID, "dlsym(%s, %s): succeeded\n", 22450a653502Swroche epath, _DEVFSADM_REMOVE_REG); 22467c478bd9Sstevel@tonic-gate } 22477c478bd9Sstevel@tonic-gate 22487c478bd9Sstevel@tonic-gate vprint(MODLOAD_MID, "module %s loaded\n", epath); 22497c478bd9Sstevel@tonic-gate 22507c478bd9Sstevel@tonic-gate module = (module_t *)s_malloc(sizeof (module_t)); 22517c478bd9Sstevel@tonic-gate module->name = s_strdup(epath); 22527c478bd9Sstevel@tonic-gate module->dlhandle = dlhandle; 22537c478bd9Sstevel@tonic-gate 22547c478bd9Sstevel@tonic-gate /* dlsym other module functions, to be called later */ 22557c478bd9Sstevel@tonic-gate module->minor_fini = (int (*)())dlsym(dlhandle, MINOR_FINI); 22567c478bd9Sstevel@tonic-gate module->minor_init = (int (*)())dlsym(dlhandle, MINOR_INIT); 22577c478bd9Sstevel@tonic-gate module->flags = 0; 22587c478bd9Sstevel@tonic-gate 22597c478bd9Sstevel@tonic-gate /* 22607c478bd9Sstevel@tonic-gate * put a ptr to each struct devfsadm_create on "create_head" 22617c478bd9Sstevel@tonic-gate * list sorted in interpose_lvl. 22627c478bd9Sstevel@tonic-gate */ 22637c478bd9Sstevel@tonic-gate if (create_reg != NULL) { 22647c478bd9Sstevel@tonic-gate for (i = 0; i < create_reg->count; i++) { 22657c478bd9Sstevel@tonic-gate int flags = create_reg->tblp[i].flags; 22667c478bd9Sstevel@tonic-gate 22677c478bd9Sstevel@tonic-gate create_list_element = (create_list_t *) 22680a653502Swroche s_malloc(sizeof (create_list_t)); 22697c478bd9Sstevel@tonic-gate 22707c478bd9Sstevel@tonic-gate create_list_element->create = &(create_reg->tblp[i]); 22717c478bd9Sstevel@tonic-gate create_list_element->modptr = module; 22727c478bd9Sstevel@tonic-gate 22737c478bd9Sstevel@tonic-gate if (((flags & CREATE_MASK) != 0) && 22747c478bd9Sstevel@tonic-gate ((flags & CREATE_MASK) != CREATE_DEFER)) { 22757c478bd9Sstevel@tonic-gate free(create_list_element); 22767c478bd9Sstevel@tonic-gate err_print("illegal flag combination in " 22770a653502Swroche "module create\n"); 22787c478bd9Sstevel@tonic-gate err_print(IGNORING_ENTRY, i, epath); 22797c478bd9Sstevel@tonic-gate continue; 22807c478bd9Sstevel@tonic-gate } 22817c478bd9Sstevel@tonic-gate 22827c478bd9Sstevel@tonic-gate if (((flags & TYPE_MASK) == 0) ^ 22837c478bd9Sstevel@tonic-gate (create_reg->tblp[i].node_type == NULL)) { 22847c478bd9Sstevel@tonic-gate free(create_list_element); 22857c478bd9Sstevel@tonic-gate err_print("flags value incompatible with " 22860a653502Swroche "node_type value in module create\n"); 22877c478bd9Sstevel@tonic-gate err_print(IGNORING_ENTRY, i, epath); 22887c478bd9Sstevel@tonic-gate continue; 22897c478bd9Sstevel@tonic-gate } 22907c478bd9Sstevel@tonic-gate 22917c478bd9Sstevel@tonic-gate if (((flags & TYPE_MASK) != 0) && 22927c478bd9Sstevel@tonic-gate ((flags & TYPE_MASK) != TYPE_EXACT) && 22937c478bd9Sstevel@tonic-gate ((flags & TYPE_MASK) != TYPE_RE) && 22947c478bd9Sstevel@tonic-gate ((flags & TYPE_MASK) != TYPE_PARTIAL)) { 22957c478bd9Sstevel@tonic-gate free(create_list_element); 22967c478bd9Sstevel@tonic-gate err_print("illegal TYPE_* flag combination in " 22970a653502Swroche "module create\n"); 22987c478bd9Sstevel@tonic-gate err_print(IGNORING_ENTRY, i, epath); 22997c478bd9Sstevel@tonic-gate continue; 23007c478bd9Sstevel@tonic-gate } 23017c478bd9Sstevel@tonic-gate 23027c478bd9Sstevel@tonic-gate /* precompile regular expression for efficiency */ 23037c478bd9Sstevel@tonic-gate if ((flags & TYPE_RE) == TYPE_RE) { 23047c478bd9Sstevel@tonic-gate if ((n = regcomp(&(create_list_element-> 23057c478bd9Sstevel@tonic-gate node_type_comp), 23067c478bd9Sstevel@tonic-gate create_reg->tblp[i].node_type, 23077c478bd9Sstevel@tonic-gate REG_EXTENDED)) != 0) { 23087c478bd9Sstevel@tonic-gate free(create_list_element); 23097c478bd9Sstevel@tonic-gate err_print(REGCOMP_FAILED, 23100a653502Swroche create_reg->tblp[i].node_type, n); 23117c478bd9Sstevel@tonic-gate err_print(IGNORING_ENTRY, i, epath); 23127c478bd9Sstevel@tonic-gate continue; 23137c478bd9Sstevel@tonic-gate } 23147c478bd9Sstevel@tonic-gate } 23157c478bd9Sstevel@tonic-gate 23167c478bd9Sstevel@tonic-gate if (((flags & DRV_MASK) == 0) ^ 23177c478bd9Sstevel@tonic-gate (create_reg->tblp[i].drv_name == NULL)) { 23187c478bd9Sstevel@tonic-gate if ((flags & TYPE_RE) == TYPE_RE) { 23197c478bd9Sstevel@tonic-gate regfree(&(create_list_element-> 23207c478bd9Sstevel@tonic-gate node_type_comp)); 23217c478bd9Sstevel@tonic-gate } 23227c478bd9Sstevel@tonic-gate free(create_list_element); 23237c478bd9Sstevel@tonic-gate err_print("flags value incompatible with " 23240a653502Swroche "drv_name value in module create\n"); 23257c478bd9Sstevel@tonic-gate err_print(IGNORING_ENTRY, i, epath); 23267c478bd9Sstevel@tonic-gate continue; 23277c478bd9Sstevel@tonic-gate } 23287c478bd9Sstevel@tonic-gate 23297c478bd9Sstevel@tonic-gate if (((flags & DRV_MASK) != 0) && 23307c478bd9Sstevel@tonic-gate ((flags & DRV_MASK) != DRV_EXACT) && 23317c478bd9Sstevel@tonic-gate ((flags & DRV_MASK) != DRV_RE)) { 23327c478bd9Sstevel@tonic-gate if ((flags & TYPE_RE) == TYPE_RE) { 23337c478bd9Sstevel@tonic-gate regfree(&(create_list_element-> 23347c478bd9Sstevel@tonic-gate node_type_comp)); 23357c478bd9Sstevel@tonic-gate } 23367c478bd9Sstevel@tonic-gate free(create_list_element); 23377c478bd9Sstevel@tonic-gate err_print("illegal DRV_* flag combination in " 23380a653502Swroche "module create\n"); 23397c478bd9Sstevel@tonic-gate err_print(IGNORING_ENTRY, i, epath); 23407c478bd9Sstevel@tonic-gate continue; 23417c478bd9Sstevel@tonic-gate } 23427c478bd9Sstevel@tonic-gate 23437c478bd9Sstevel@tonic-gate /* precompile regular expression for efficiency */ 23447c478bd9Sstevel@tonic-gate if ((create_reg->tblp[i].flags & DRV_RE) == DRV_RE) { 23457c478bd9Sstevel@tonic-gate if ((n = regcomp(&(create_list_element-> 23467c478bd9Sstevel@tonic-gate drv_name_comp), 23477c478bd9Sstevel@tonic-gate create_reg->tblp[i].drv_name, 23487c478bd9Sstevel@tonic-gate REG_EXTENDED)) != 0) { 23497c478bd9Sstevel@tonic-gate if ((flags & TYPE_RE) == TYPE_RE) { 23507c478bd9Sstevel@tonic-gate regfree(&(create_list_element-> 23517c478bd9Sstevel@tonic-gate node_type_comp)); 23527c478bd9Sstevel@tonic-gate } 23537c478bd9Sstevel@tonic-gate free(create_list_element); 23547c478bd9Sstevel@tonic-gate err_print(REGCOMP_FAILED, 23550a653502Swroche create_reg->tblp[i].drv_name, n); 23567c478bd9Sstevel@tonic-gate err_print(IGNORING_ENTRY, i, epath); 23577c478bd9Sstevel@tonic-gate continue; 23587c478bd9Sstevel@tonic-gate } 23597c478bd9Sstevel@tonic-gate } 23607c478bd9Sstevel@tonic-gate 23617c478bd9Sstevel@tonic-gate 23627c478bd9Sstevel@tonic-gate /* add to list sorted by interpose level */ 23637c478bd9Sstevel@tonic-gate for (create_list_next = &(create_head); 23640a653502Swroche (*create_list_next != NULL) && 23650a653502Swroche (*create_list_next)->create->interpose_lvl >= 23660a653502Swroche create_list_element->create->interpose_lvl; 23670a653502Swroche create_list_next = &((*create_list_next)->next)) 23680a653502Swroche ; 23697c478bd9Sstevel@tonic-gate create_list_element->next = *create_list_next; 23707c478bd9Sstevel@tonic-gate *create_list_next = create_list_element; 23717c478bd9Sstevel@tonic-gate } 23727c478bd9Sstevel@tonic-gate } 23737c478bd9Sstevel@tonic-gate 23747c478bd9Sstevel@tonic-gate /* 23757c478bd9Sstevel@tonic-gate * put a ptr to each struct devfsadm_remove on "remove_head" 23767c478bd9Sstevel@tonic-gate * list sorted by interpose_lvl. 23777c478bd9Sstevel@tonic-gate */ 2378aa646b9dSvikram flags = 0; 23797c478bd9Sstevel@tonic-gate if (remove_reg != NULL) { 2380aa646b9dSvikram if (remove_reg->version < DEVFSADM_V1) 2381aa646b9dSvikram flags |= RM_NOINTERPOSE; 23827c478bd9Sstevel@tonic-gate for (i = 0; i < remove_reg->count; i++) { 23837c478bd9Sstevel@tonic-gate 23847c478bd9Sstevel@tonic-gate remove_list_element = (remove_list_t *) 23850a653502Swroche s_malloc(sizeof (remove_list_t)); 23867c478bd9Sstevel@tonic-gate 23877c478bd9Sstevel@tonic-gate remove_list_element->remove = &(remove_reg->tblp[i]); 2388aa646b9dSvikram remove_list_element->remove->flags |= flags; 23897c478bd9Sstevel@tonic-gate remove_list_element->modptr = module; 23907c478bd9Sstevel@tonic-gate 23917c478bd9Sstevel@tonic-gate for (remove_list_next = &(remove_head); 23920a653502Swroche (*remove_list_next != NULL) && 23930a653502Swroche (*remove_list_next)->remove->interpose_lvl >= 23940a653502Swroche remove_list_element->remove->interpose_lvl; 23950a653502Swroche remove_list_next = &((*remove_list_next)->next)) 23960a653502Swroche ; 23977c478bd9Sstevel@tonic-gate remove_list_element->next = *remove_list_next; 23987c478bd9Sstevel@tonic-gate *remove_list_next = remove_list_element; 23997c478bd9Sstevel@tonic-gate } 24007c478bd9Sstevel@tonic-gate } 24017c478bd9Sstevel@tonic-gate 24027c478bd9Sstevel@tonic-gate module->next = module_head; 24037c478bd9Sstevel@tonic-gate module_head = module; 24047c478bd9Sstevel@tonic-gate } 24057c478bd9Sstevel@tonic-gate 24067c478bd9Sstevel@tonic-gate /* 2407ff2aee48Scth * After we have completed a CACHE_STATE, if a SYNC_STATE does not occur 2408ff2aee48Scth * within 'timeout' secs the minor_fini_thread needs to do a SYNC_STATE 2409ff2aee48Scth * so that we still call the minor_fini routines. 24107c478bd9Sstevel@tonic-gate */ 2411cb2bfa20SToomas Soome static void * 2412cb2bfa20SToomas Soome minor_fini_thread(void *arg __unused) 24137c478bd9Sstevel@tonic-gate { 2414ff2aee48Scth timestruc_t abstime; 24157c478bd9Sstevel@tonic-gate 2416ff2aee48Scth vprint(INITFINI_MID, "minor_fini_thread starting\n"); 24177c478bd9Sstevel@tonic-gate 2418ff2aee48Scth (void) mutex_lock(&minor_fini_mutex); 2419ff2aee48Scth for (;;) { 2420ff2aee48Scth /* wait the gather period, or until signaled */ 2421ff2aee48Scth abstime.tv_sec = time(NULL) + minor_fini_timeout; 2422ff2aee48Scth abstime.tv_nsec = 0; 2423ff2aee48Scth (void) cond_timedwait(&minor_fini_cv, 2424ff2aee48Scth &minor_fini_mutex, &abstime); 2425ff2aee48Scth 2426ff2aee48Scth /* if minor_fini was canceled, go wait again */ 2427ff2aee48Scth if (minor_fini_canceled == TRUE) 2428ff2aee48Scth continue; 24297c478bd9Sstevel@tonic-gate 2430ff2aee48Scth /* if minor_fini was delayed, go wait again */ 2431ff2aee48Scth if (minor_fini_delayed == TRUE) { 2432ff2aee48Scth minor_fini_delayed = FALSE; 2433ff2aee48Scth continue; 2434ff2aee48Scth } 24357c478bd9Sstevel@tonic-gate 2436ff2aee48Scth /* done with cancellations and delays, do the SYNC_STATE */ 24377c478bd9Sstevel@tonic-gate (void) mutex_unlock(&minor_fini_mutex); 24387c478bd9Sstevel@tonic-gate 2439ff2aee48Scth lock_dev(); 2440ff2aee48Scth unlock_dev(SYNC_STATE); 2441ff2aee48Scth vprint(INITFINI_MID, "minor_fini sync done\n"); 24427c478bd9Sstevel@tonic-gate 2443ff2aee48Scth (void) mutex_lock(&minor_fini_mutex); 2444ff2aee48Scth } 2445cb2bfa20SToomas Soome return (NULL); 24467c478bd9Sstevel@tonic-gate } 24477c478bd9Sstevel@tonic-gate 2448ff2aee48Scth 24497c478bd9Sstevel@tonic-gate /* 24507c478bd9Sstevel@tonic-gate * Attempt to initialize module, if a minor_init routine exists. Set 24517c478bd9Sstevel@tonic-gate * the active flag if the routine exists and succeeds. If it doesn't 24527c478bd9Sstevel@tonic-gate * exist, just set the active flag. 24537c478bd9Sstevel@tonic-gate */ 24547c478bd9Sstevel@tonic-gate static int 24557c478bd9Sstevel@tonic-gate call_minor_init(module_t *module) 24567c478bd9Sstevel@tonic-gate { 24577c478bd9Sstevel@tonic-gate char *fcn = "call_minor_init: "; 24587c478bd9Sstevel@tonic-gate 24597c478bd9Sstevel@tonic-gate if ((module->flags & MODULE_ACTIVE) == MODULE_ACTIVE) { 24607c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 24617c478bd9Sstevel@tonic-gate } 24627c478bd9Sstevel@tonic-gate 24637c478bd9Sstevel@tonic-gate vprint(INITFINI_MID, "%smodule %s. current state: inactive\n", 24640a653502Swroche fcn, module->name); 24657c478bd9Sstevel@tonic-gate 24667c478bd9Sstevel@tonic-gate if (module->minor_init == NULL) { 24677c478bd9Sstevel@tonic-gate module->flags |= MODULE_ACTIVE; 24687c478bd9Sstevel@tonic-gate vprint(INITFINI_MID, "minor_init not defined\n"); 24697c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 24707c478bd9Sstevel@tonic-gate } 24717c478bd9Sstevel@tonic-gate 24727c478bd9Sstevel@tonic-gate if ((*(module->minor_init))() == DEVFSADM_FAILURE) { 24737c478bd9Sstevel@tonic-gate err_print(FAILED_FOR_MODULE, MINOR_INIT, module->name); 24747c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 24757c478bd9Sstevel@tonic-gate } 24767c478bd9Sstevel@tonic-gate 24777c478bd9Sstevel@tonic-gate vprint(INITFINI_MID, "minor_init() returns DEVFSADM_SUCCESS. " 24780a653502Swroche "new state: active\n"); 24797c478bd9Sstevel@tonic-gate 24807c478bd9Sstevel@tonic-gate module->flags |= MODULE_ACTIVE; 24817c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 24827c478bd9Sstevel@tonic-gate } 24837c478bd9Sstevel@tonic-gate 24847c478bd9Sstevel@tonic-gate /* 24857c478bd9Sstevel@tonic-gate * Creates a symlink 'link' to the physical path of node:minor. 24867c478bd9Sstevel@tonic-gate * Construct link contents, then call create_link_common(). 24877c478bd9Sstevel@tonic-gate */ 24887c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 24897c478bd9Sstevel@tonic-gate int 2490facf4a8dSllai devfsadm_mklink(char *link, di_node_t node, di_minor_t minor, int flags) 24917c478bd9Sstevel@tonic-gate { 24927c478bd9Sstevel@tonic-gate char rcontents[PATH_MAX]; 24937c478bd9Sstevel@tonic-gate char devlink[PATH_MAX]; 24947c478bd9Sstevel@tonic-gate char phy_path[PATH_MAX]; 24957c478bd9Sstevel@tonic-gate char *acontents; 24967c478bd9Sstevel@tonic-gate char *dev_path; 24977c478bd9Sstevel@tonic-gate int numslashes; 24987c478bd9Sstevel@tonic-gate int rv; 24997c478bd9Sstevel@tonic-gate int i, link_exists; 25007c478bd9Sstevel@tonic-gate int last_was_slash = FALSE; 25017c478bd9Sstevel@tonic-gate 25027c478bd9Sstevel@tonic-gate /* 25037c478bd9Sstevel@tonic-gate * try to use devices path 25047c478bd9Sstevel@tonic-gate */ 25057c478bd9Sstevel@tonic-gate if ((node == lnode) && (minor == lminor)) { 25067c478bd9Sstevel@tonic-gate acontents = lphy_path; 25077c478bd9Sstevel@tonic-gate } else if (di_minor_type(minor) == DDM_ALIAS) { 25087c478bd9Sstevel@tonic-gate /* use /pseudo/clone@0:<driver> as the phys path */ 25097c478bd9Sstevel@tonic-gate (void) snprintf(phy_path, sizeof (phy_path), 25107c478bd9Sstevel@tonic-gate "/pseudo/clone@0:%s", 25117c478bd9Sstevel@tonic-gate di_driver_name(di_minor_devinfo(minor))); 25127c478bd9Sstevel@tonic-gate acontents = phy_path; 25137c478bd9Sstevel@tonic-gate } else { 25147c478bd9Sstevel@tonic-gate if ((dev_path = di_devfs_path(node)) == NULL) { 25157c478bd9Sstevel@tonic-gate err_print(DI_DEVFS_PATH_FAILED, strerror(errno)); 25167c478bd9Sstevel@tonic-gate devfsadm_exit(1); 2517537714daSvikram /*NOTREACHED*/ 25187c478bd9Sstevel@tonic-gate } 25197c478bd9Sstevel@tonic-gate (void) snprintf(phy_path, sizeof (phy_path), "%s:%s", 25207c478bd9Sstevel@tonic-gate dev_path, di_minor_name(minor)); 25217c478bd9Sstevel@tonic-gate di_devfs_path_free(dev_path); 25227c478bd9Sstevel@tonic-gate acontents = phy_path; 25237c478bd9Sstevel@tonic-gate } 25247c478bd9Sstevel@tonic-gate 25257c478bd9Sstevel@tonic-gate /* prepend link with dev_dir contents */ 25267c478bd9Sstevel@tonic-gate (void) strlcpy(devlink, dev_dir, sizeof (devlink)); 25277c478bd9Sstevel@tonic-gate (void) strlcat(devlink, "/", sizeof (devlink)); 25287c478bd9Sstevel@tonic-gate (void) strlcat(devlink, link, sizeof (devlink)); 25297c478bd9Sstevel@tonic-gate 25307c478bd9Sstevel@tonic-gate /* 25317c478bd9Sstevel@tonic-gate * Calculate # of ../ to add. Account for double '//' in path. 25327c478bd9Sstevel@tonic-gate * Ignore all leading slashes. 25337c478bd9Sstevel@tonic-gate */ 25347c478bd9Sstevel@tonic-gate for (i = 0; link[i] == '/'; i++) 25357c478bd9Sstevel@tonic-gate ; 25367c478bd9Sstevel@tonic-gate for (numslashes = 0; link[i] != '\0'; i++) { 25377c478bd9Sstevel@tonic-gate if (link[i] == '/') { 25387c478bd9Sstevel@tonic-gate if (last_was_slash == FALSE) { 25397c478bd9Sstevel@tonic-gate numslashes++; 25407c478bd9Sstevel@tonic-gate last_was_slash = TRUE; 25417c478bd9Sstevel@tonic-gate } 25427c478bd9Sstevel@tonic-gate } else { 25437c478bd9Sstevel@tonic-gate last_was_slash = FALSE; 25447c478bd9Sstevel@tonic-gate } 25457c478bd9Sstevel@tonic-gate } 25467c478bd9Sstevel@tonic-gate /* Don't count any trailing '/' */ 25477c478bd9Sstevel@tonic-gate if (link[i-1] == '/') { 25487c478bd9Sstevel@tonic-gate numslashes--; 25497c478bd9Sstevel@tonic-gate } 25507c478bd9Sstevel@tonic-gate 25517c478bd9Sstevel@tonic-gate rcontents[0] = '\0'; 25527c478bd9Sstevel@tonic-gate do { 25537c478bd9Sstevel@tonic-gate (void) strlcat(rcontents, "../", sizeof (rcontents)); 25547c478bd9Sstevel@tonic-gate } while (numslashes-- != 0); 25557c478bd9Sstevel@tonic-gate 25567c478bd9Sstevel@tonic-gate (void) strlcat(rcontents, "devices", sizeof (rcontents)); 25577c478bd9Sstevel@tonic-gate (void) strlcat(rcontents, acontents, sizeof (rcontents)); 25587c478bd9Sstevel@tonic-gate 25597c478bd9Sstevel@tonic-gate if (devlinks_debug == TRUE) { 25607c478bd9Sstevel@tonic-gate vprint(INFO_MID, "adding link %s ==> %s\n", devlink, rcontents); 25617c478bd9Sstevel@tonic-gate } 25627c478bd9Sstevel@tonic-gate 25637c478bd9Sstevel@tonic-gate if ((rv = create_link_common(devlink, rcontents, &link_exists)) 25647c478bd9Sstevel@tonic-gate == DEVFSADM_SUCCESS) { 25657c478bd9Sstevel@tonic-gate linknew = TRUE; 25667c478bd9Sstevel@tonic-gate add_link_to_cache(link, acontents); 25677c478bd9Sstevel@tonic-gate } else { 25687c478bd9Sstevel@tonic-gate linknew = FALSE; 25697c478bd9Sstevel@tonic-gate } 25707c478bd9Sstevel@tonic-gate 25717c478bd9Sstevel@tonic-gate if (link_exists == TRUE) { 25726e670f77Saj /* Link exists or was just created */ 25736e670f77Saj (void) di_devlink_add_link(devlink_cache, link, rcontents, 25746e670f77Saj DI_PRIMARY_LINK); 25756e670f77Saj 25766e670f77Saj if (system_labeled && (flags & DA_ADD)) { 257745916cd2Sjpk /* 25786e670f77Saj * Add this to the list of allocatable devices. If this 25796e670f77Saj * is a hotplugged, removable disk, add it as rmdisk. 258045916cd2Sjpk */ 25816e670f77Saj int instance = di_instance(node); 258245916cd2Sjpk 25836e670f77Saj if ((flags & DA_CD) && 25846e670f77Saj (_da_check_for_usb(devlink, root_dir) == 1)) { 258545916cd2Sjpk (void) da_add_list(&devlist, devlink, instance, 258645916cd2Sjpk DA_ADD|DA_RMDISK); 258745916cd2Sjpk update_devdb = DA_RMDISK; 25886e670f77Saj } else if (linknew == TRUE) { 25896e670f77Saj (void) da_add_list(&devlist, devlink, instance, 25906e670f77Saj flags); 25916e670f77Saj update_devdb = flags; 259245916cd2Sjpk } 259345916cd2Sjpk } 25947c478bd9Sstevel@tonic-gate } 25957c478bd9Sstevel@tonic-gate 25967c478bd9Sstevel@tonic-gate return (rv); 25977c478bd9Sstevel@tonic-gate } 25987c478bd9Sstevel@tonic-gate 25997c478bd9Sstevel@tonic-gate /* 26007c478bd9Sstevel@tonic-gate * Creates a symlink link to primary_link. Calculates relative 26017c478bd9Sstevel@tonic-gate * directory offsets, then calls link_common(). 26027c478bd9Sstevel@tonic-gate */ 26037c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 26047c478bd9Sstevel@tonic-gate int 26057c478bd9Sstevel@tonic-gate devfsadm_secondary_link(char *link, char *primary_link, int flags) 26067c478bd9Sstevel@tonic-gate { 26077c478bd9Sstevel@tonic-gate char contents[PATH_MAX + 1]; 26087c478bd9Sstevel@tonic-gate char devlink[PATH_MAX + 1]; 26097c478bd9Sstevel@tonic-gate int rv, link_exists; 26107c478bd9Sstevel@tonic-gate char *fpath; 26117c478bd9Sstevel@tonic-gate char *tpath; 26127c478bd9Sstevel@tonic-gate char *op; 26137c478bd9Sstevel@tonic-gate 26147c478bd9Sstevel@tonic-gate /* prepend link with dev_dir contents */ 26157c478bd9Sstevel@tonic-gate (void) strcpy(devlink, dev_dir); 26167c478bd9Sstevel@tonic-gate (void) strcat(devlink, "/"); 26177c478bd9Sstevel@tonic-gate (void) strcat(devlink, link); 26187c478bd9Sstevel@tonic-gate /* 26197c478bd9Sstevel@tonic-gate * building extra link, so use first link as link contents, but first 26207c478bd9Sstevel@tonic-gate * make it relative. 26217c478bd9Sstevel@tonic-gate */ 26227c478bd9Sstevel@tonic-gate fpath = link; 26237c478bd9Sstevel@tonic-gate tpath = primary_link; 26247c478bd9Sstevel@tonic-gate op = contents; 26257c478bd9Sstevel@tonic-gate 26267c478bd9Sstevel@tonic-gate while (*fpath == *tpath && *fpath != '\0') { 26277c478bd9Sstevel@tonic-gate fpath++, tpath++; 26287c478bd9Sstevel@tonic-gate } 26297c478bd9Sstevel@tonic-gate 26307c478bd9Sstevel@tonic-gate /* Count directories to go up, if any, and add "../" */ 26317c478bd9Sstevel@tonic-gate while (*fpath != '\0') { 26327c478bd9Sstevel@tonic-gate if (*fpath == '/') { 26337c478bd9Sstevel@tonic-gate (void) strcpy(op, "../"); 26347c478bd9Sstevel@tonic-gate op += 3; 26357c478bd9Sstevel@tonic-gate } 26367c478bd9Sstevel@tonic-gate fpath++; 26377c478bd9Sstevel@tonic-gate } 26387c478bd9Sstevel@tonic-gate 26397c478bd9Sstevel@tonic-gate /* 26407c478bd9Sstevel@tonic-gate * Back up to the start of the current path component, in 26417c478bd9Sstevel@tonic-gate * case in the middle 26427c478bd9Sstevel@tonic-gate */ 26437c478bd9Sstevel@tonic-gate while (tpath != primary_link && *(tpath-1) != '/') { 26447c478bd9Sstevel@tonic-gate tpath--; 26457c478bd9Sstevel@tonic-gate } 26467c478bd9Sstevel@tonic-gate (void) strcpy(op, tpath); 26477c478bd9Sstevel@tonic-gate 26487c478bd9Sstevel@tonic-gate if (devlinks_debug == TRUE) { 26497c478bd9Sstevel@tonic-gate vprint(INFO_MID, "adding extra link %s ==> %s\n", 26500a653502Swroche devlink, contents); 26517c478bd9Sstevel@tonic-gate } 26527c478bd9Sstevel@tonic-gate 26537c478bd9Sstevel@tonic-gate if ((rv = create_link_common(devlink, contents, &link_exists)) 26547c478bd9Sstevel@tonic-gate == DEVFSADM_SUCCESS) { 26557c478bd9Sstevel@tonic-gate /* 26567c478bd9Sstevel@tonic-gate * we need to save the ultimate /devices contents, and not the 26577c478bd9Sstevel@tonic-gate * secondary link, since hotcleanup only looks at /devices path. 26587c478bd9Sstevel@tonic-gate * Since we don't have devices path here, we can try to get it 26597c478bd9Sstevel@tonic-gate * by readlink'ing the secondary link. This assumes the primary 26607c478bd9Sstevel@tonic-gate * link was created first. 26617c478bd9Sstevel@tonic-gate */ 26627c478bd9Sstevel@tonic-gate add_link_to_cache(link, lphy_path); 26637c478bd9Sstevel@tonic-gate linknew = TRUE; 266445916cd2Sjpk if (system_labeled && 266545916cd2Sjpk ((flags & DA_AUDIO) && (flags & DA_ADD))) { 266645916cd2Sjpk /* 266745916cd2Sjpk * Add this device to the list of allocatable devices. 266845916cd2Sjpk */ 266945916cd2Sjpk int instance = 0; 267045916cd2Sjpk 267145916cd2Sjpk op = strrchr(contents, '/'); 267245916cd2Sjpk op++; 267345916cd2Sjpk (void) sscanf(op, "%d", &instance); 267445916cd2Sjpk (void) da_add_list(&devlist, devlink, instance, flags); 267545916cd2Sjpk update_devdb = flags; 267645916cd2Sjpk } 26777c478bd9Sstevel@tonic-gate } else { 26787c478bd9Sstevel@tonic-gate linknew = FALSE; 26797c478bd9Sstevel@tonic-gate } 26807c478bd9Sstevel@tonic-gate 26817c478bd9Sstevel@tonic-gate /* 26827c478bd9Sstevel@tonic-gate * If link exists or was just created, add it to the database 26837c478bd9Sstevel@tonic-gate */ 26847c478bd9Sstevel@tonic-gate if (link_exists == TRUE) { 26857c478bd9Sstevel@tonic-gate (void) di_devlink_add_link(devlink_cache, link, contents, 26867c478bd9Sstevel@tonic-gate DI_SECONDARY_LINK); 26877c478bd9Sstevel@tonic-gate } 26887c478bd9Sstevel@tonic-gate 26897c478bd9Sstevel@tonic-gate return (rv); 26907c478bd9Sstevel@tonic-gate } 26917c478bd9Sstevel@tonic-gate 26927c478bd9Sstevel@tonic-gate /* returns pointer to the devices directory */ 26937c478bd9Sstevel@tonic-gate char * 26947c478bd9Sstevel@tonic-gate devfsadm_get_devices_dir() 26957c478bd9Sstevel@tonic-gate { 26967c478bd9Sstevel@tonic-gate return (devices_dir); 26977c478bd9Sstevel@tonic-gate } 26987c478bd9Sstevel@tonic-gate 26997c478bd9Sstevel@tonic-gate /* 27007c478bd9Sstevel@tonic-gate * Does the actual link creation. VERBOSE_MID only used if there is 27017c478bd9Sstevel@tonic-gate * a change. CHATTY_MID used otherwise. 27027c478bd9Sstevel@tonic-gate */ 27037c478bd9Sstevel@tonic-gate static int 27047c478bd9Sstevel@tonic-gate create_link_common(char *devlink, char *contents, int *exists) 27057c478bd9Sstevel@tonic-gate { 27067c478bd9Sstevel@tonic-gate int try; 27077c478bd9Sstevel@tonic-gate int linksize; 27087c478bd9Sstevel@tonic-gate int max_tries = 0; 27097c478bd9Sstevel@tonic-gate static int prev_link_existed = TRUE; 27107c478bd9Sstevel@tonic-gate char checkcontents[PATH_MAX + 1]; 27117c478bd9Sstevel@tonic-gate char *hide; 27127c478bd9Sstevel@tonic-gate 27137c478bd9Sstevel@tonic-gate *exists = FALSE; 27147c478bd9Sstevel@tonic-gate 27157c478bd9Sstevel@tonic-gate /* Database is not updated when file_mods == FALSE */ 27167c478bd9Sstevel@tonic-gate if (file_mods == FALSE) { 271794c894bbSVikram Hegde /* we want *actual* link contents so no alias redirection */ 27187c478bd9Sstevel@tonic-gate linksize = readlink(devlink, checkcontents, PATH_MAX); 27197c478bd9Sstevel@tonic-gate if (linksize > 0) { 27207c478bd9Sstevel@tonic-gate checkcontents[linksize] = '\0'; 27217c478bd9Sstevel@tonic-gate if (strcmp(checkcontents, contents) != 0) { 27227c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, REMOVING_LINK, 27230a653502Swroche devlink, checkcontents); 27247c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 27257c478bd9Sstevel@tonic-gate } else { 27267c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "link exists and is correct:" 27270a653502Swroche " %s -> %s\n", devlink, contents); 27287c478bd9Sstevel@tonic-gate /* failure only in that the link existed */ 27297c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 27307c478bd9Sstevel@tonic-gate } 27317c478bd9Sstevel@tonic-gate } else { 27327c478bd9Sstevel@tonic-gate vprint(VERBOSE_MID, CREATING_LINK, devlink, contents); 27337c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 27347c478bd9Sstevel@tonic-gate } 27357c478bd9Sstevel@tonic-gate } 27367c478bd9Sstevel@tonic-gate 27377c478bd9Sstevel@tonic-gate /* 27387c478bd9Sstevel@tonic-gate * systems calls are expensive, so predict whether to readlink 27397c478bd9Sstevel@tonic-gate * or symlink first, based on previous attempt 27407c478bd9Sstevel@tonic-gate */ 27417c478bd9Sstevel@tonic-gate if (prev_link_existed == FALSE) { 27427c478bd9Sstevel@tonic-gate try = CREATE_LINK; 27437c478bd9Sstevel@tonic-gate } else { 27447c478bd9Sstevel@tonic-gate try = READ_LINK; 27457c478bd9Sstevel@tonic-gate } 27467c478bd9Sstevel@tonic-gate 27477c478bd9Sstevel@tonic-gate while (++max_tries <= 3) { 27487c478bd9Sstevel@tonic-gate 27497c478bd9Sstevel@tonic-gate switch (try) { 27507c478bd9Sstevel@tonic-gate case CREATE_LINK: 27517c478bd9Sstevel@tonic-gate 27527c478bd9Sstevel@tonic-gate if (symlink(contents, devlink) == 0) { 27537c478bd9Sstevel@tonic-gate vprint(VERBOSE_MID, CREATING_LINK, devlink, 27540a653502Swroche contents); 27557c478bd9Sstevel@tonic-gate prev_link_existed = FALSE; 27567c478bd9Sstevel@tonic-gate /* link successfully created */ 27577c478bd9Sstevel@tonic-gate *exists = TRUE; 27587c478bd9Sstevel@tonic-gate set_logindev_perms(devlink); 27597c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 27607c478bd9Sstevel@tonic-gate } else { 27617c478bd9Sstevel@tonic-gate switch (errno) { 27627c478bd9Sstevel@tonic-gate 27637c478bd9Sstevel@tonic-gate case ENOENT: 27647c478bd9Sstevel@tonic-gate /* dirpath to node doesn't exist */ 27657c478bd9Sstevel@tonic-gate hide = strrchr(devlink, '/'); 27667c478bd9Sstevel@tonic-gate *hide = '\0'; 27677c478bd9Sstevel@tonic-gate s_mkdirp(devlink, S_IRWXU|S_IRGRP| 27680a653502Swroche S_IXGRP|S_IROTH|S_IXOTH); 27697c478bd9Sstevel@tonic-gate *hide = '/'; 27707c478bd9Sstevel@tonic-gate break; 27717c478bd9Sstevel@tonic-gate case EEXIST: 27727c478bd9Sstevel@tonic-gate try = READ_LINK; 27737c478bd9Sstevel@tonic-gate break; 27747c478bd9Sstevel@tonic-gate default: 27757c478bd9Sstevel@tonic-gate err_print(SYMLINK_FAILED, devlink, 27760a653502Swroche contents, strerror(errno)); 27777c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 27787c478bd9Sstevel@tonic-gate } 27797c478bd9Sstevel@tonic-gate } 27807c478bd9Sstevel@tonic-gate break; 27817c478bd9Sstevel@tonic-gate 27827c478bd9Sstevel@tonic-gate case READ_LINK: 27837c478bd9Sstevel@tonic-gate 278494c894bbSVikram Hegde /* 278594c894bbSVikram Hegde * If there is redirection, new phys path 278694c894bbSVikram Hegde * and old phys path will not match and the 278794c894bbSVikram Hegde * link will be created with new phys path 278894c894bbSVikram Hegde * which is what we want. So we want real 278994c894bbSVikram Hegde * contents. 279094c894bbSVikram Hegde */ 27917c478bd9Sstevel@tonic-gate linksize = readlink(devlink, checkcontents, PATH_MAX); 27927c478bd9Sstevel@tonic-gate if (linksize >= 0) { 27937c478bd9Sstevel@tonic-gate checkcontents[linksize] = '\0'; 27947c478bd9Sstevel@tonic-gate if (strcmp(checkcontents, contents) != 0) { 27957c478bd9Sstevel@tonic-gate s_unlink(devlink); 27967c478bd9Sstevel@tonic-gate vprint(VERBOSE_MID, REMOVING_LINK, 27970a653502Swroche devlink, checkcontents); 27987c478bd9Sstevel@tonic-gate try = CREATE_LINK; 27997c478bd9Sstevel@tonic-gate } else { 28007c478bd9Sstevel@tonic-gate prev_link_existed = TRUE; 28017c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, 28020a653502Swroche "link exists and is correct:" 28030a653502Swroche " %s -> %s\n", devlink, contents); 28047c478bd9Sstevel@tonic-gate *exists = TRUE; 28057c478bd9Sstevel@tonic-gate /* failure in that the link existed */ 28067c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 28077c478bd9Sstevel@tonic-gate } 28087c478bd9Sstevel@tonic-gate } else { 28097c478bd9Sstevel@tonic-gate switch (errno) { 28107c478bd9Sstevel@tonic-gate case EINVAL: 28117c478bd9Sstevel@tonic-gate /* not a symlink, remove and create */ 28127c478bd9Sstevel@tonic-gate s_unlink(devlink); 2813902eb929SToomas Soome /* FALLTHROUGH */ 28147c478bd9Sstevel@tonic-gate default: 28157c478bd9Sstevel@tonic-gate /* maybe it didn't exist at all */ 28167c478bd9Sstevel@tonic-gate try = CREATE_LINK; 28177c478bd9Sstevel@tonic-gate break; 28187c478bd9Sstevel@tonic-gate } 28197c478bd9Sstevel@tonic-gate } 28207c478bd9Sstevel@tonic-gate break; 28217c478bd9Sstevel@tonic-gate } 28227c478bd9Sstevel@tonic-gate } 28237c478bd9Sstevel@tonic-gate err_print(MAX_ATTEMPTS, devlink, contents); 28247c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 28257c478bd9Sstevel@tonic-gate } 28267c478bd9Sstevel@tonic-gate 28277c478bd9Sstevel@tonic-gate static void 28287c478bd9Sstevel@tonic-gate set_logindev_perms(char *devlink) 28297c478bd9Sstevel@tonic-gate { 28307c478bd9Sstevel@tonic-gate struct login_dev *newdev; 28317c478bd9Sstevel@tonic-gate struct passwd pwd, *resp; 28327c478bd9Sstevel@tonic-gate char pwd_buf[PATH_MAX]; 28337c478bd9Sstevel@tonic-gate int rv; 28347c478bd9Sstevel@tonic-gate struct stat sb; 28357c478bd9Sstevel@tonic-gate char *devfs_path = NULL; 28367c478bd9Sstevel@tonic-gate 28377c478bd9Sstevel@tonic-gate /* 28387c478bd9Sstevel@tonic-gate * We only want logindev perms to be set when a device is 28397c478bd9Sstevel@tonic-gate * hotplugged or an application requests synchronous creates. 28407c478bd9Sstevel@tonic-gate * So we enable this only in daemon mode. In addition, 28417c478bd9Sstevel@tonic-gate * login(1) only fixes the std. /dev dir. So we don't 28427c478bd9Sstevel@tonic-gate * change perms if alternate root is set. 28437c478bd9Sstevel@tonic-gate * login_dev_enable is TRUE only in these cases. 28447c478bd9Sstevel@tonic-gate */ 28457c478bd9Sstevel@tonic-gate if (login_dev_enable != TRUE) 28467c478bd9Sstevel@tonic-gate return; 28477c478bd9Sstevel@tonic-gate 28487c478bd9Sstevel@tonic-gate /* 28497c478bd9Sstevel@tonic-gate * Normally, /etc/logindevperm has few (8 - 10 entries) which 28507c478bd9Sstevel@tonic-gate * may be regular expressions (globs were converted to RE). 28517c478bd9Sstevel@tonic-gate * So just do a linear search through the list. 28527c478bd9Sstevel@tonic-gate */ 28537c478bd9Sstevel@tonic-gate for (newdev = login_dev_cache; newdev; newdev = newdev->ldev_next) { 28547c478bd9Sstevel@tonic-gate vprint(FILES_MID, "matching %s with %s\n", devlink, 28557c478bd9Sstevel@tonic-gate newdev->ldev_device); 28567c478bd9Sstevel@tonic-gate 28577c478bd9Sstevel@tonic-gate if (regexec(&newdev->ldev_device_regex, devlink, 0, 28587c478bd9Sstevel@tonic-gate NULL, 0) == 0) { 28597c478bd9Sstevel@tonic-gate vprint(FILES_MID, "matched %s with %s\n", devlink, 28607c478bd9Sstevel@tonic-gate newdev->ldev_device); 28617c478bd9Sstevel@tonic-gate break; 28627c478bd9Sstevel@tonic-gate } 28637c478bd9Sstevel@tonic-gate } 28647c478bd9Sstevel@tonic-gate 28657c478bd9Sstevel@tonic-gate if (newdev == NULL) 28667c478bd9Sstevel@tonic-gate return; 28677c478bd9Sstevel@tonic-gate 28687c478bd9Sstevel@tonic-gate /* 28697c478bd9Sstevel@tonic-gate * we have a match, now find the driver associated with this 28707c478bd9Sstevel@tonic-gate * minor node using a snapshot on the physical path 28717c478bd9Sstevel@tonic-gate */ 28727c478bd9Sstevel@tonic-gate (void) resolve_link(devlink, NULL, NULL, &devfs_path, 0); 287394c894bbSVikram Hegde /* 287494c894bbSVikram Hegde * We dont need redirection here - the actual link contents 287594c894bbSVikram Hegde * whether "alias" or "current" are fine 287694c894bbSVikram Hegde */ 28777c478bd9Sstevel@tonic-gate if (devfs_path) { 28787c478bd9Sstevel@tonic-gate di_node_t node; 287994c894bbSVikram Hegde char *drv; 28807c478bd9Sstevel@tonic-gate struct driver_list *list; 28817c478bd9Sstevel@tonic-gate char *p; 28827c478bd9Sstevel@tonic-gate 28837c478bd9Sstevel@tonic-gate /* truncate on : so we can take a snapshot */ 28847c478bd9Sstevel@tonic-gate (void) strcpy(pwd_buf, devfs_path); 28857c478bd9Sstevel@tonic-gate p = strrchr(pwd_buf, ':'); 28867c478bd9Sstevel@tonic-gate if (p == NULL) { 28877c478bd9Sstevel@tonic-gate free(devfs_path); 28887c478bd9Sstevel@tonic-gate return; 28897c478bd9Sstevel@tonic-gate } 28907c478bd9Sstevel@tonic-gate *p = '\0'; 28917c478bd9Sstevel@tonic-gate 28927c478bd9Sstevel@tonic-gate vprint(FILES_MID, "link=%s->physpath=%s\n", 28937c478bd9Sstevel@tonic-gate devlink, pwd_buf); 28947c478bd9Sstevel@tonic-gate 28957c478bd9Sstevel@tonic-gate node = di_init(pwd_buf, DINFOMINOR); 28967c478bd9Sstevel@tonic-gate 289794c894bbSVikram Hegde drv = NULL; 28987c478bd9Sstevel@tonic-gate if (node) { 28997c478bd9Sstevel@tonic-gate drv = di_driver_name(node); 29007c478bd9Sstevel@tonic-gate 29017c478bd9Sstevel@tonic-gate if (drv) { 29027c478bd9Sstevel@tonic-gate vprint(FILES_MID, "%s: driver is %s\n", 29037c478bd9Sstevel@tonic-gate devlink, drv); 29047c478bd9Sstevel@tonic-gate } 29057c478bd9Sstevel@tonic-gate } 29067c478bd9Sstevel@tonic-gate /* search thru the driver list specified in logindevperm */ 29077c478bd9Sstevel@tonic-gate list = newdev->ldev_driver_list; 29087c478bd9Sstevel@tonic-gate if ((drv != NULL) && (list != NULL)) { 29097c478bd9Sstevel@tonic-gate while (list) { 29107c478bd9Sstevel@tonic-gate if (strcmp(list->driver_name, 29117c478bd9Sstevel@tonic-gate drv) == 0) { 29127c478bd9Sstevel@tonic-gate vprint(FILES_MID, 29137c478bd9Sstevel@tonic-gate "driver %s match!\n", drv); 29147c478bd9Sstevel@tonic-gate break; 29157c478bd9Sstevel@tonic-gate } 29167c478bd9Sstevel@tonic-gate list = list->next; 29177c478bd9Sstevel@tonic-gate } 29187c478bd9Sstevel@tonic-gate if (list == NULL) { 29197c478bd9Sstevel@tonic-gate vprint(FILES_MID, "no driver match!\n"); 29207c478bd9Sstevel@tonic-gate free(devfs_path); 29217c478bd9Sstevel@tonic-gate return; 29227c478bd9Sstevel@tonic-gate } 29237c478bd9Sstevel@tonic-gate } 29247c478bd9Sstevel@tonic-gate free(devfs_path); 292594c894bbSVikram Hegde di_fini(node); 29267c478bd9Sstevel@tonic-gate } else { 29277c478bd9Sstevel@tonic-gate return; 29287c478bd9Sstevel@tonic-gate } 29297c478bd9Sstevel@tonic-gate 29307c478bd9Sstevel@tonic-gate vprint(FILES_MID, "changing permissions of %s\n", devlink); 29317c478bd9Sstevel@tonic-gate 29327c478bd9Sstevel@tonic-gate /* 29337c478bd9Sstevel@tonic-gate * We have a match. We now attempt to determine the 29347c478bd9Sstevel@tonic-gate * owner and group of the console user. 29357c478bd9Sstevel@tonic-gate * 29367c478bd9Sstevel@tonic-gate * stat() the console device newdev->ldev_console 29377c478bd9Sstevel@tonic-gate * which will always exist - it will have the right owner but 29387c478bd9Sstevel@tonic-gate * not the right group. Use getpwuid_r() to determine group for this 29397c478bd9Sstevel@tonic-gate * uid. 29407c478bd9Sstevel@tonic-gate * Note, it is safe to use name service here since if name services 29417c478bd9Sstevel@tonic-gate * are not available (during boot or in single-user mode), then 29427c478bd9Sstevel@tonic-gate * console owner will be root and its gid can be found in 29437c478bd9Sstevel@tonic-gate * local files. 29447c478bd9Sstevel@tonic-gate */ 29457c478bd9Sstevel@tonic-gate if (stat(newdev->ldev_console, &sb) == -1) { 29467c478bd9Sstevel@tonic-gate vprint(VERBOSE_MID, STAT_FAILED, newdev->ldev_console, 29477c478bd9Sstevel@tonic-gate strerror(errno)); 29487c478bd9Sstevel@tonic-gate return; 29497c478bd9Sstevel@tonic-gate } 29507c478bd9Sstevel@tonic-gate 29517c478bd9Sstevel@tonic-gate resp = NULL; 29527c478bd9Sstevel@tonic-gate rv = getpwuid_r(sb.st_uid, &pwd, pwd_buf, sizeof (pwd_buf), &resp); 29537c478bd9Sstevel@tonic-gate if (rv || resp == NULL) { 29547c478bd9Sstevel@tonic-gate rv = rv ? rv : EINVAL; 29557c478bd9Sstevel@tonic-gate vprint(VERBOSE_MID, GID_FAILED, sb.st_uid, 29567c478bd9Sstevel@tonic-gate strerror(rv)); 29577c478bd9Sstevel@tonic-gate return; 29587c478bd9Sstevel@tonic-gate } 29597c478bd9Sstevel@tonic-gate 29607c478bd9Sstevel@tonic-gate assert(&pwd == resp); 29617c478bd9Sstevel@tonic-gate 29627c478bd9Sstevel@tonic-gate sb.st_gid = resp->pw_gid; 29637c478bd9Sstevel@tonic-gate 29647c478bd9Sstevel@tonic-gate if (chmod(devlink, newdev->ldev_perms) == -1) { 29657c478bd9Sstevel@tonic-gate vprint(VERBOSE_MID, CHMOD_FAILED, devlink, 29667c478bd9Sstevel@tonic-gate strerror(errno)); 29677c478bd9Sstevel@tonic-gate return; 29687c478bd9Sstevel@tonic-gate } 29697c478bd9Sstevel@tonic-gate 29707c478bd9Sstevel@tonic-gate if (chown(devlink, sb.st_uid, sb.st_gid) == -1) { 29717c478bd9Sstevel@tonic-gate vprint(VERBOSE_MID, CHOWN_FAILED, devlink, 29727c478bd9Sstevel@tonic-gate strerror(errno)); 29737c478bd9Sstevel@tonic-gate } 29747c478bd9Sstevel@tonic-gate } 29757c478bd9Sstevel@tonic-gate 29767c478bd9Sstevel@tonic-gate /* 29777c478bd9Sstevel@tonic-gate * Reset /devices node with appropriate permissions and 29787c478bd9Sstevel@tonic-gate * ownership as specified in /etc/minor_perm. 29797c478bd9Sstevel@tonic-gate */ 29807c478bd9Sstevel@tonic-gate static void 29817c478bd9Sstevel@tonic-gate reset_node_permissions(di_node_t node, di_minor_t minor) 29827c478bd9Sstevel@tonic-gate { 29837c478bd9Sstevel@tonic-gate int spectype; 29847c478bd9Sstevel@tonic-gate char phy_path[PATH_MAX + 1]; 29857c478bd9Sstevel@tonic-gate mode_t mode; 29867c478bd9Sstevel@tonic-gate dev_t dev; 29877c478bd9Sstevel@tonic-gate uid_t uid; 29887c478bd9Sstevel@tonic-gate gid_t gid; 29897c478bd9Sstevel@tonic-gate struct stat sb; 29907c478bd9Sstevel@tonic-gate char *dev_path, *aminor = NULL; 29917c478bd9Sstevel@tonic-gate 29927c478bd9Sstevel@tonic-gate /* lphy_path starts with / */ 29937c478bd9Sstevel@tonic-gate if ((dev_path = di_devfs_path(node)) == NULL) { 29947c478bd9Sstevel@tonic-gate err_print(DI_DEVFS_PATH_FAILED, strerror(errno)); 29957c478bd9Sstevel@tonic-gate devfsadm_exit(1); 2996537714daSvikram /*NOTREACHED*/ 29977c478bd9Sstevel@tonic-gate } 29987c478bd9Sstevel@tonic-gate (void) strcpy(lphy_path, dev_path); 29997c478bd9Sstevel@tonic-gate di_devfs_path_free(dev_path); 30007c478bd9Sstevel@tonic-gate 30017c478bd9Sstevel@tonic-gate (void) strcat(lphy_path, ":"); 30027c478bd9Sstevel@tonic-gate if (di_minor_type(minor) == DDM_ALIAS) { 30037c478bd9Sstevel@tonic-gate char *driver; 30047c478bd9Sstevel@tonic-gate aminor = di_minor_name(minor); 30057c478bd9Sstevel@tonic-gate driver = di_driver_name(di_minor_devinfo(minor)); 30067c478bd9Sstevel@tonic-gate (void) strcat(lphy_path, driver); 30077c478bd9Sstevel@tonic-gate } else 30087c478bd9Sstevel@tonic-gate (void) strcat(lphy_path, di_minor_name(minor)); 30097c478bd9Sstevel@tonic-gate 30107c478bd9Sstevel@tonic-gate (void) strcpy(phy_path, devices_dir); 30117c478bd9Sstevel@tonic-gate (void) strcat(phy_path, lphy_path); 30127c478bd9Sstevel@tonic-gate 30137c478bd9Sstevel@tonic-gate lnode = node; 30147c478bd9Sstevel@tonic-gate lminor = minor; 30157c478bd9Sstevel@tonic-gate 30167c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "reset_node_permissions: phy_path=%s lphy_path=%s\n", 30170a653502Swroche phy_path, lphy_path); 30187c478bd9Sstevel@tonic-gate 30197c478bd9Sstevel@tonic-gate dev = di_minor_devt(minor); 30207c478bd9Sstevel@tonic-gate spectype = di_minor_spectype(minor); /* block or char */ 30217c478bd9Sstevel@tonic-gate 30227c478bd9Sstevel@tonic-gate getattr(phy_path, aminor, spectype, dev, &mode, &uid, &gid); 30237c478bd9Sstevel@tonic-gate 30247c478bd9Sstevel@tonic-gate /* 30257c478bd9Sstevel@tonic-gate * compare and set permissions and ownership 30267c478bd9Sstevel@tonic-gate * 30277c478bd9Sstevel@tonic-gate * Under devfs, a quick insertion and removal of USB devices 30287c478bd9Sstevel@tonic-gate * would cause stat of physical path to fail. In this case, 30297c478bd9Sstevel@tonic-gate * we emit a verbose message, but don't print errors. 30307c478bd9Sstevel@tonic-gate */ 30317c478bd9Sstevel@tonic-gate if ((stat(phy_path, &sb) == -1) || (sb.st_rdev != dev)) { 30327c478bd9Sstevel@tonic-gate vprint(VERBOSE_MID, NO_DEVFS_NODE, phy_path); 30337c478bd9Sstevel@tonic-gate return; 30347c478bd9Sstevel@tonic-gate } 30357c478bd9Sstevel@tonic-gate 30367c478bd9Sstevel@tonic-gate /* 303745916cd2Sjpk * If we are here for a new device 303845916cd2Sjpk * If device allocation is on 303945916cd2Sjpk * then 304045916cd2Sjpk * set ownership to root:other and permissions to 0000 304145916cd2Sjpk * else 304245916cd2Sjpk * set ownership and permissions as specified in minor_perm 304345916cd2Sjpk * If we are here for an existing device 304445916cd2Sjpk * If device allocation is to be turned on 304545916cd2Sjpk * then 304645916cd2Sjpk * reset ownership to root:other and permissions to 0000 304745916cd2Sjpk * else if device allocation is to be turned off 304845916cd2Sjpk * reset ownership and permissions to those specified in 304945916cd2Sjpk * minor_perm 305045916cd2Sjpk * else 3051ff2aee48Scth * preserve existing/user-modified ownership and 305245916cd2Sjpk * permissions 305345916cd2Sjpk * 305445916cd2Sjpk * devfs indicates a new device by faking access time to be zero. 30557c478bd9Sstevel@tonic-gate */ 30567c478bd9Sstevel@tonic-gate if (sb.st_atime != 0) { 30577c478bd9Sstevel@tonic-gate int i; 30587c478bd9Sstevel@tonic-gate char *nt; 30597c478bd9Sstevel@tonic-gate 306045916cd2Sjpk if ((devalloc_flag == 0) && (devalloc_is_on != 1)) 306145916cd2Sjpk /* 306245916cd2Sjpk * Leave existing devices as they are if we are not 306345916cd2Sjpk * turning device allocation on/off. 306445916cd2Sjpk */ 30657c478bd9Sstevel@tonic-gate return; 30667c478bd9Sstevel@tonic-gate 30677c478bd9Sstevel@tonic-gate nt = di_minor_nodetype(minor); 306845916cd2Sjpk 30697c478bd9Sstevel@tonic-gate if (nt == NULL) 30707c478bd9Sstevel@tonic-gate return; 307145916cd2Sjpk 307245916cd2Sjpk for (i = 0; devalloc_list[i]; i++) { 307345916cd2Sjpk if (strcmp(nt, devalloc_list[i]) == 0) 307445916cd2Sjpk /* 307545916cd2Sjpk * One of the types recognized by devalloc, 307645916cd2Sjpk * reset attrs. 307745916cd2Sjpk */ 30787c478bd9Sstevel@tonic-gate break; 30797c478bd9Sstevel@tonic-gate } 308045916cd2Sjpk if (devalloc_list[i] == NULL) 30817c478bd9Sstevel@tonic-gate return; 30827c478bd9Sstevel@tonic-gate } 30837c478bd9Sstevel@tonic-gate 30847c478bd9Sstevel@tonic-gate if (file_mods == FALSE) { 30857c478bd9Sstevel@tonic-gate /* Nothing more to do if simulating */ 30867c478bd9Sstevel@tonic-gate vprint(VERBOSE_MID, PERM_MSG, phy_path, uid, gid, mode); 30877c478bd9Sstevel@tonic-gate return; 30887c478bd9Sstevel@tonic-gate } 30897c478bd9Sstevel@tonic-gate 30908c206d17Spr if ((devalloc_flag == DA_ON) || 30918c206d17Spr ((devalloc_is_on == 1) && (devalloc_flag != DA_OFF))) { 309245916cd2Sjpk /* 30938c206d17Spr * we are here either to turn device allocation on or 30948c206d17Spr * to add a new device while device allocation is on 30958c206d17Spr * (and we've confirmed that we're not turning it 30968c206d17Spr * off). 309745916cd2Sjpk */ 309845916cd2Sjpk mode = DEALLOC_MODE; 309945916cd2Sjpk uid = DA_UID; 310045916cd2Sjpk gid = DA_GID; 310145916cd2Sjpk } 310245916cd2Sjpk 310345916cd2Sjpk if ((devalloc_is_on == 1) || (devalloc_flag == DA_ON) || 310445916cd2Sjpk (sb.st_mode != mode)) { 31057c478bd9Sstevel@tonic-gate if (chmod(phy_path, mode) == -1) 31067c478bd9Sstevel@tonic-gate vprint(VERBOSE_MID, CHMOD_FAILED, 31077c478bd9Sstevel@tonic-gate phy_path, strerror(errno)); 31087c478bd9Sstevel@tonic-gate } 310945916cd2Sjpk if ((devalloc_is_on == 1) || (devalloc_flag == DA_ON) || 311045916cd2Sjpk (sb.st_uid != uid || sb.st_gid != gid)) { 31117c478bd9Sstevel@tonic-gate if (chown(phy_path, uid, gid) == -1) 31127c478bd9Sstevel@tonic-gate vprint(VERBOSE_MID, CHOWN_FAILED, 31137c478bd9Sstevel@tonic-gate phy_path, strerror(errno)); 31147c478bd9Sstevel@tonic-gate } 31157c478bd9Sstevel@tonic-gate 31167c478bd9Sstevel@tonic-gate /* Report that we actually did something */ 31177c478bd9Sstevel@tonic-gate vprint(VERBOSE_MID, PERM_MSG, phy_path, uid, gid, mode); 31187c478bd9Sstevel@tonic-gate } 31197c478bd9Sstevel@tonic-gate 31207c478bd9Sstevel@tonic-gate /* 31217c478bd9Sstevel@tonic-gate * Removes logical link and the minor node it refers to. If file is a 31227c478bd9Sstevel@tonic-gate * link, we recurse and try to remove the minor node (or link if path is 31237c478bd9Sstevel@tonic-gate * a double link) that file's link contents refer to. 31247c478bd9Sstevel@tonic-gate */ 31257c478bd9Sstevel@tonic-gate static void 31267c478bd9Sstevel@tonic-gate devfsadm_rm_work(char *file, int recurse, int file_type) 31277c478bd9Sstevel@tonic-gate { 31287c478bd9Sstevel@tonic-gate char *fcn = "devfsadm_rm_work: "; 31297c478bd9Sstevel@tonic-gate int linksize; 31307c478bd9Sstevel@tonic-gate char contents[PATH_MAX + 1]; 31317c478bd9Sstevel@tonic-gate char nextfile[PATH_MAX + 1]; 31327c478bd9Sstevel@tonic-gate char newfile[PATH_MAX + 1]; 31337c478bd9Sstevel@tonic-gate char *ptr; 31347c478bd9Sstevel@tonic-gate 31357c478bd9Sstevel@tonic-gate vprint(REMOVE_MID, "%s%s\n", fcn, file); 31367c478bd9Sstevel@tonic-gate 313794c894bbSVikram Hegde /* 313894c894bbSVikram Hegde * Note: we don't remove /devices (non-links) entries because they are 313994c894bbSVikram Hegde * covered by devfs. 314094c894bbSVikram Hegde */ 314194c894bbSVikram Hegde if (file_type != TYPE_LINK) { 314294c894bbSVikram Hegde return; 31437c478bd9Sstevel@tonic-gate } 31447c478bd9Sstevel@tonic-gate 314594c894bbSVikram Hegde /* split into multiple if's due to excessive indentations */ 314694c894bbSVikram Hegde (void) strcpy(newfile, dev_dir); 314794c894bbSVikram Hegde (void) strcat(newfile, "/"); 314894c894bbSVikram Hegde (void) strcat(newfile, file); 314994c894bbSVikram Hegde 315094c894bbSVikram Hegde /* 315194c894bbSVikram Hegde * we dont care about the content of the symlink, so 315294c894bbSVikram Hegde * redirection is not needed. 315394c894bbSVikram Hegde */ 315494c894bbSVikram Hegde if ((recurse == TRUE) && 31557c478bd9Sstevel@tonic-gate ((linksize = readlink(newfile, contents, PATH_MAX)) > 0)) { 31567c478bd9Sstevel@tonic-gate contents[linksize] = '\0'; 31577c478bd9Sstevel@tonic-gate 315894c894bbSVikram Hegde /* 315994c894bbSVikram Hegde * recurse if link points to another link 316094c894bbSVikram Hegde */ 316194c894bbSVikram Hegde if (is_minor_node(contents, &ptr) != DEVFSADM_TRUE) { 31627c478bd9Sstevel@tonic-gate if (strncmp(contents, DEV "/", strlen(DEV) + 1) == 0) { 31637c478bd9Sstevel@tonic-gate devfsadm_rm_work(&contents[strlen(DEV) + 1], 31640a653502Swroche TRUE, TYPE_LINK); 31657c478bd9Sstevel@tonic-gate } else { 31667c478bd9Sstevel@tonic-gate if ((ptr = strrchr(file, '/')) != NULL) { 31677c478bd9Sstevel@tonic-gate *ptr = '\0'; 31687c478bd9Sstevel@tonic-gate (void) strcpy(nextfile, file); 31697c478bd9Sstevel@tonic-gate *ptr = '/'; 31707c478bd9Sstevel@tonic-gate (void) strcat(nextfile, "/"); 31717c478bd9Sstevel@tonic-gate } else { 31727c478bd9Sstevel@tonic-gate (void) strcpy(nextfile, ""); 31737c478bd9Sstevel@tonic-gate } 31747c478bd9Sstevel@tonic-gate (void) strcat(nextfile, contents); 31757c478bd9Sstevel@tonic-gate devfsadm_rm_work(nextfile, TRUE, TYPE_LINK); 31767c478bd9Sstevel@tonic-gate } 31777c478bd9Sstevel@tonic-gate } 31787c478bd9Sstevel@tonic-gate } 31797c478bd9Sstevel@tonic-gate 318094c894bbSVikram Hegde vprint(VERBOSE_MID, DEVFSADM_UNLINK, newfile); 318194c894bbSVikram Hegde if (file_mods == TRUE) { 318294c894bbSVikram Hegde rm_link_from_cache(file); 318394c894bbSVikram Hegde s_unlink(newfile); 318494c894bbSVikram Hegde rm_parent_dir_if_empty(newfile); 318594c894bbSVikram Hegde invalidate_enumerate_cache(); 318694c894bbSVikram Hegde (void) di_devlink_rm_link(devlink_cache, file); 31877c478bd9Sstevel@tonic-gate } 31887c478bd9Sstevel@tonic-gate } 31897c478bd9Sstevel@tonic-gate 31907c478bd9Sstevel@tonic-gate void 31917c478bd9Sstevel@tonic-gate devfsadm_rm_link(char *file) 31927c478bd9Sstevel@tonic-gate { 31937c478bd9Sstevel@tonic-gate devfsadm_rm_work(file, FALSE, TYPE_LINK); 31947c478bd9Sstevel@tonic-gate } 31957c478bd9Sstevel@tonic-gate 31967c478bd9Sstevel@tonic-gate void 31977c478bd9Sstevel@tonic-gate devfsadm_rm_all(char *file) 31987c478bd9Sstevel@tonic-gate { 31997c478bd9Sstevel@tonic-gate devfsadm_rm_work(file, TRUE, TYPE_LINK); 32007c478bd9Sstevel@tonic-gate } 32017c478bd9Sstevel@tonic-gate 32024bc0a2efScasper static int 32037c478bd9Sstevel@tonic-gate s_rmdir(char *path) 32047c478bd9Sstevel@tonic-gate { 32057c478bd9Sstevel@tonic-gate int i; 32067c478bd9Sstevel@tonic-gate char *rpath, *dir; 32077c478bd9Sstevel@tonic-gate const char *fcn = "s_rmdir"; 32087c478bd9Sstevel@tonic-gate 32097c478bd9Sstevel@tonic-gate /* 32107c478bd9Sstevel@tonic-gate * Certain directories are created at install time by packages. 321167323fc4SJohn Levon * Some of them (listed in sticky_dirs[]) are required by apps 32127c478bd9Sstevel@tonic-gate * and need to be present even when empty. 32137c478bd9Sstevel@tonic-gate */ 321467323fc4SJohn Levon vprint(REMOVE_MID, "%s: checking if %s is sticky\n", fcn, path); 32157c478bd9Sstevel@tonic-gate 32167c478bd9Sstevel@tonic-gate rpath = path + strlen(dev_dir) + 1; 32177c478bd9Sstevel@tonic-gate 321867323fc4SJohn Levon for (i = 0; (dir = sticky_dirs[i]) != NULL; i++) { 32197c478bd9Sstevel@tonic-gate if (*rpath == *dir) { 32207c478bd9Sstevel@tonic-gate if (strcmp(rpath, dir) == 0) { 322167323fc4SJohn Levon vprint(REMOVE_MID, "%s: skipping sticky dir: " 32227c478bd9Sstevel@tonic-gate "%s\n", fcn, path); 32234bc0a2efScasper errno = EEXIST; 32244bc0a2efScasper return (-1); 32257c478bd9Sstevel@tonic-gate } 32267c478bd9Sstevel@tonic-gate } 32277c478bd9Sstevel@tonic-gate } 32287c478bd9Sstevel@tonic-gate 32294bc0a2efScasper return (rmdir(path)); 32307c478bd9Sstevel@tonic-gate } 32317c478bd9Sstevel@tonic-gate 32327c478bd9Sstevel@tonic-gate /* 32337c478bd9Sstevel@tonic-gate * Try to remove any empty directories up the tree. It is assumed that 32347c478bd9Sstevel@tonic-gate * pathname is a file that was removed, so start with its parent, and 32357c478bd9Sstevel@tonic-gate * work up the tree. 32367c478bd9Sstevel@tonic-gate */ 32377c478bd9Sstevel@tonic-gate static void 32387c478bd9Sstevel@tonic-gate rm_parent_dir_if_empty(char *pathname) 32397c478bd9Sstevel@tonic-gate { 32407c478bd9Sstevel@tonic-gate char *ptr, path[PATH_MAX + 1]; 32417c478bd9Sstevel@tonic-gate char *fcn = "rm_parent_dir_if_empty: "; 32427c478bd9Sstevel@tonic-gate 32437c478bd9Sstevel@tonic-gate vprint(REMOVE_MID, "%schecking %s if empty\n", fcn, pathname); 32447c478bd9Sstevel@tonic-gate 32457c478bd9Sstevel@tonic-gate (void) strcpy(path, pathname); 32467c478bd9Sstevel@tonic-gate 32477c478bd9Sstevel@tonic-gate /* 32487c478bd9Sstevel@tonic-gate * ascend up the dir tree, deleting all empty dirs. 32497c478bd9Sstevel@tonic-gate * Return immediately if a dir is not empty. 32507c478bd9Sstevel@tonic-gate */ 32517c478bd9Sstevel@tonic-gate for (;;) { 32527c478bd9Sstevel@tonic-gate 32537c478bd9Sstevel@tonic-gate if ((ptr = strrchr(path, '/')) == NULL) { 32547c478bd9Sstevel@tonic-gate return; 32557c478bd9Sstevel@tonic-gate } 32567c478bd9Sstevel@tonic-gate 32577c478bd9Sstevel@tonic-gate *ptr = '\0'; 32587c478bd9Sstevel@tonic-gate 3259e37c6c37Scth if (finddev_emptydir(path)) { 3260e37c6c37Scth /* directory is empty */ 3261facf4a8dSllai if (s_rmdir(path) == 0) { 3262facf4a8dSllai vprint(REMOVE_MID, 3263facf4a8dSllai "%sremoving empty dir %s\n", fcn, path); 3264facf4a8dSllai } else if (errno == EEXIST) { 3265facf4a8dSllai vprint(REMOVE_MID, 3266facf4a8dSllai "%sfailed to remove dir: %s\n", fcn, path); 3267facf4a8dSllai return; 3268facf4a8dSllai } 3269facf4a8dSllai } else { 3270facf4a8dSllai /* some other file is here, so return */ 32717c478bd9Sstevel@tonic-gate vprint(REMOVE_MID, "%sdir not empty: %s\n", fcn, path); 32727c478bd9Sstevel@tonic-gate return; 32737c478bd9Sstevel@tonic-gate } 32747c478bd9Sstevel@tonic-gate } 32757c478bd9Sstevel@tonic-gate } 32767c478bd9Sstevel@tonic-gate 32777c478bd9Sstevel@tonic-gate /* 32787c478bd9Sstevel@tonic-gate * This function and all the functions it calls below were added to 32797c478bd9Sstevel@tonic-gate * handle the unique problem with world wide names (WWN). The problem is 32807c478bd9Sstevel@tonic-gate * that if a WWN device is moved to another address on the same controller 32817c478bd9Sstevel@tonic-gate * its logical link will change, while the physical node remains the same. 32827c478bd9Sstevel@tonic-gate * The result is that two logical links will point to the same physical path 32837c478bd9Sstevel@tonic-gate * in /devices, the valid link and a stale link. This function will 32847c478bd9Sstevel@tonic-gate * find all the stale nodes, though at a significant performance cost. 32857c478bd9Sstevel@tonic-gate * 32867c478bd9Sstevel@tonic-gate * Caching is used to increase performance. 32877c478bd9Sstevel@tonic-gate * A cache will be built from disk if the cache tag doesn't already exist. 32887c478bd9Sstevel@tonic-gate * The cache tag is a regular expression "dir_re", which selects a 32897c478bd9Sstevel@tonic-gate * subset of disks to search from typically something like 32907c478bd9Sstevel@tonic-gate * "dev/cXt[0-9]+d[0-9]+s[0-9]+". After the cache is built, consistency must 32917c478bd9Sstevel@tonic-gate * be maintained, so entries are added as new links are created, and removed 32927c478bd9Sstevel@tonic-gate * as old links are deleted. The whole cache is flushed if we are a daemon, 32937c478bd9Sstevel@tonic-gate * and another devfsadm process ran in between. 32947c478bd9Sstevel@tonic-gate * 32957c478bd9Sstevel@tonic-gate * Once the cache is built, this function finds the cache which matches 32967c478bd9Sstevel@tonic-gate * dir_re, and then it searches all links in that cache looking for 32977c478bd9Sstevel@tonic-gate * any link whose contents match "valid_link_contents" with a corresponding link 32987c478bd9Sstevel@tonic-gate * which does not match "valid_link". Any such matches are stale and removed. 329994c894bbSVikram Hegde * 330094c894bbSVikram Hegde * This happens outside the context of a "reparenting" so we dont need 330194c894bbSVikram Hegde * redirection. 33027c478bd9Sstevel@tonic-gate */ 33037c478bd9Sstevel@tonic-gate void 33047c478bd9Sstevel@tonic-gate devfsadm_rm_stale_links(char *dir_re, char *valid_link, di_node_t node, 3305406fc510SToomas Soome di_minor_t minor) 33067c478bd9Sstevel@tonic-gate { 33077c478bd9Sstevel@tonic-gate link_t *link; 33087c478bd9Sstevel@tonic-gate linkhead_t *head; 33097c478bd9Sstevel@tonic-gate char phy_path[PATH_MAX + 1]; 33107c478bd9Sstevel@tonic-gate char *valid_link_contents; 33117c478bd9Sstevel@tonic-gate char *dev_path; 33127c478bd9Sstevel@tonic-gate char rmlink[PATH_MAX + 1]; 33137c478bd9Sstevel@tonic-gate 33147c478bd9Sstevel@tonic-gate /* 33157c478bd9Sstevel@tonic-gate * try to use devices path 33167c478bd9Sstevel@tonic-gate */ 33177c478bd9Sstevel@tonic-gate if ((node == lnode) && (minor == lminor)) { 33187c478bd9Sstevel@tonic-gate valid_link_contents = lphy_path; 33197c478bd9Sstevel@tonic-gate } else { 33207c478bd9Sstevel@tonic-gate if ((dev_path = di_devfs_path(node)) == NULL) { 33217c478bd9Sstevel@tonic-gate err_print(DI_DEVFS_PATH_FAILED, strerror(errno)); 33227c478bd9Sstevel@tonic-gate devfsadm_exit(1); 3323537714daSvikram /*NOTREACHED*/ 33247c478bd9Sstevel@tonic-gate } 33257c478bd9Sstevel@tonic-gate (void) strcpy(phy_path, dev_path); 33267c478bd9Sstevel@tonic-gate di_devfs_path_free(dev_path); 33277c478bd9Sstevel@tonic-gate 33287c478bd9Sstevel@tonic-gate (void) strcat(phy_path, ":"); 33297c478bd9Sstevel@tonic-gate (void) strcat(phy_path, di_minor_name(minor)); 33307c478bd9Sstevel@tonic-gate valid_link_contents = phy_path; 33317c478bd9Sstevel@tonic-gate } 33327c478bd9Sstevel@tonic-gate 33337c478bd9Sstevel@tonic-gate /* 33347c478bd9Sstevel@tonic-gate * As an optimization, check to make sure the corresponding 33357c478bd9Sstevel@tonic-gate * devlink was just created before continuing. 33367c478bd9Sstevel@tonic-gate */ 33377c478bd9Sstevel@tonic-gate 33387c478bd9Sstevel@tonic-gate if (linknew == FALSE) { 33397c478bd9Sstevel@tonic-gate return; 33407c478bd9Sstevel@tonic-gate } 33417c478bd9Sstevel@tonic-gate 33427c478bd9Sstevel@tonic-gate head = get_cached_links(dir_re); 33437c478bd9Sstevel@tonic-gate 33447c478bd9Sstevel@tonic-gate assert(head->nextlink == NULL); 33457c478bd9Sstevel@tonic-gate 33467c478bd9Sstevel@tonic-gate for (link = head->link; link != NULL; link = head->nextlink) { 33477c478bd9Sstevel@tonic-gate /* 33487c478bd9Sstevel@tonic-gate * See hot_cleanup() for why we do this 33497c478bd9Sstevel@tonic-gate */ 33507c478bd9Sstevel@tonic-gate head->nextlink = link->next; 33517c478bd9Sstevel@tonic-gate if ((strcmp(link->contents, valid_link_contents) == 0) && 33527c478bd9Sstevel@tonic-gate (strcmp(link->devlink, valid_link) != 0)) { 33537c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "removing %s -> %s\n" 33540a653502Swroche "valid link is: %s -> %s\n", 33550a653502Swroche link->devlink, link->contents, 33560a653502Swroche valid_link, valid_link_contents); 33577c478bd9Sstevel@tonic-gate /* 33587c478bd9Sstevel@tonic-gate * Use a copy of the cached link name as the 33597c478bd9Sstevel@tonic-gate * cache entry will go away during link removal 33607c478bd9Sstevel@tonic-gate */ 33617c478bd9Sstevel@tonic-gate (void) snprintf(rmlink, sizeof (rmlink), "%s", 33627c478bd9Sstevel@tonic-gate link->devlink); 33637c478bd9Sstevel@tonic-gate devfsadm_rm_link(rmlink); 33647c478bd9Sstevel@tonic-gate } 33657c478bd9Sstevel@tonic-gate } 33667c478bd9Sstevel@tonic-gate } 33677c478bd9Sstevel@tonic-gate 33687c478bd9Sstevel@tonic-gate /* 33697c478bd9Sstevel@tonic-gate * Return previously created cache, or create cache. 33707c478bd9Sstevel@tonic-gate */ 33717c478bd9Sstevel@tonic-gate static linkhead_t * 33727c478bd9Sstevel@tonic-gate get_cached_links(char *dir_re) 33737c478bd9Sstevel@tonic-gate { 33747c478bd9Sstevel@tonic-gate recurse_dev_t rd; 33757c478bd9Sstevel@tonic-gate linkhead_t *linkhead; 33767c478bd9Sstevel@tonic-gate int n; 33777c478bd9Sstevel@tonic-gate 33787c478bd9Sstevel@tonic-gate vprint(BUILDCACHE_MID, "get_cached_links: %s\n", dir_re); 33797c478bd9Sstevel@tonic-gate 33807c478bd9Sstevel@tonic-gate for (linkhead = headlinkhead; linkhead != NULL; 33810a653502Swroche linkhead = linkhead->nexthead) { 33827c478bd9Sstevel@tonic-gate if (strcmp(linkhead->dir_re, dir_re) == 0) { 33837c478bd9Sstevel@tonic-gate return (linkhead); 33847c478bd9Sstevel@tonic-gate } 33857c478bd9Sstevel@tonic-gate } 33867c478bd9Sstevel@tonic-gate 33877c478bd9Sstevel@tonic-gate /* 33887c478bd9Sstevel@tonic-gate * This tag is not in cache, so add it, along with all its 33897c478bd9Sstevel@tonic-gate * matching /dev entries. This is the only time we go to disk. 33907c478bd9Sstevel@tonic-gate */ 33917c478bd9Sstevel@tonic-gate linkhead = s_malloc(sizeof (linkhead_t)); 33927c478bd9Sstevel@tonic-gate linkhead->nexthead = headlinkhead; 33937c478bd9Sstevel@tonic-gate headlinkhead = linkhead; 33947c478bd9Sstevel@tonic-gate linkhead->dir_re = s_strdup(dir_re); 33957c478bd9Sstevel@tonic-gate 33967c478bd9Sstevel@tonic-gate if ((n = regcomp(&(linkhead->dir_re_compiled), dir_re, 33970a653502Swroche REG_EXTENDED)) != 0) { 33987c478bd9Sstevel@tonic-gate err_print(REGCOMP_FAILED, dir_re, n); 33997c478bd9Sstevel@tonic-gate } 34007c478bd9Sstevel@tonic-gate 34017c478bd9Sstevel@tonic-gate linkhead->nextlink = NULL; 34027c478bd9Sstevel@tonic-gate linkhead->link = NULL; 34037c478bd9Sstevel@tonic-gate 34047c478bd9Sstevel@tonic-gate rd.fcn = build_devlink_list; 34057c478bd9Sstevel@tonic-gate rd.data = (void *)linkhead; 34067c478bd9Sstevel@tonic-gate 34077c478bd9Sstevel@tonic-gate vprint(BUILDCACHE_MID, "get_cached_links: calling recurse_dev_re\n"); 34087c478bd9Sstevel@tonic-gate 34097c478bd9Sstevel@tonic-gate /* call build_devlink_list for each directory in the dir_re RE */ 34107c478bd9Sstevel@tonic-gate if (dir_re[0] == '/') { 34117c478bd9Sstevel@tonic-gate recurse_dev_re("/", &dir_re[1], &rd); 34127c478bd9Sstevel@tonic-gate } else { 34137c478bd9Sstevel@tonic-gate recurse_dev_re(dev_dir, dir_re, &rd); 34147c478bd9Sstevel@tonic-gate } 34157c478bd9Sstevel@tonic-gate 34167c478bd9Sstevel@tonic-gate return (linkhead); 34177c478bd9Sstevel@tonic-gate } 34187c478bd9Sstevel@tonic-gate 34197c478bd9Sstevel@tonic-gate static void 34207c478bd9Sstevel@tonic-gate build_devlink_list(char *devlink, void *data) 34217c478bd9Sstevel@tonic-gate { 34227c478bd9Sstevel@tonic-gate char *fcn = "build_devlink_list: "; 34237c478bd9Sstevel@tonic-gate char *ptr; 34247c478bd9Sstevel@tonic-gate char *r_contents; 34257c478bd9Sstevel@tonic-gate char *r_devlink; 34267c478bd9Sstevel@tonic-gate char contents[PATH_MAX + 1]; 34277c478bd9Sstevel@tonic-gate char newlink[PATH_MAX + 1]; 34287c478bd9Sstevel@tonic-gate char stage_link[PATH_MAX + 1]; 34297c478bd9Sstevel@tonic-gate int linksize; 34307c478bd9Sstevel@tonic-gate linkhead_t *linkhead = (linkhead_t *)data; 34317c478bd9Sstevel@tonic-gate link_t *link; 34327c478bd9Sstevel@tonic-gate int i = 0; 34337c478bd9Sstevel@tonic-gate 34347c478bd9Sstevel@tonic-gate vprint(BUILDCACHE_MID, "%scheck_link: %s\n", fcn, devlink); 34357c478bd9Sstevel@tonic-gate 34367c478bd9Sstevel@tonic-gate (void) strcpy(newlink, devlink); 34377c478bd9Sstevel@tonic-gate 34387c478bd9Sstevel@tonic-gate do { 343994c894bbSVikram Hegde /* 344094c894bbSVikram Hegde * None of the consumers of this function need redirection 344194c894bbSVikram Hegde * so this readlink gets the "current" contents 344294c894bbSVikram Hegde */ 34437c478bd9Sstevel@tonic-gate linksize = readlink(newlink, contents, PATH_MAX); 34447c478bd9Sstevel@tonic-gate if (linksize <= 0) { 34457c478bd9Sstevel@tonic-gate /* 34467c478bd9Sstevel@tonic-gate * The first pass through the do loop we may readlink() 34477c478bd9Sstevel@tonic-gate * non-symlink files(EINVAL) from false regexec matches. 34487c478bd9Sstevel@tonic-gate * Suppress error messages in those cases or if the link 34497c478bd9Sstevel@tonic-gate * content is the empty string. 34507c478bd9Sstevel@tonic-gate */ 34517c478bd9Sstevel@tonic-gate if (linksize < 0 && (i || errno != EINVAL)) 34527c478bd9Sstevel@tonic-gate err_print(READLINK_FAILED, "build_devlink_list", 34537c478bd9Sstevel@tonic-gate newlink, strerror(errno)); 34547c478bd9Sstevel@tonic-gate return; 34557c478bd9Sstevel@tonic-gate } 34567c478bd9Sstevel@tonic-gate contents[linksize] = '\0'; 34577c478bd9Sstevel@tonic-gate i = 1; 34587c478bd9Sstevel@tonic-gate 34597c478bd9Sstevel@tonic-gate if (is_minor_node(contents, &r_contents) == DEVFSADM_FALSE) { 34607c478bd9Sstevel@tonic-gate /* 34617c478bd9Sstevel@tonic-gate * assume that link contents is really a pointer to 34627c478bd9Sstevel@tonic-gate * another link, so recurse and read its link contents. 34637c478bd9Sstevel@tonic-gate * 34647c478bd9Sstevel@tonic-gate * some link contents are absolute: 34657c478bd9Sstevel@tonic-gate * /dev/audio -> /dev/sound/0 34667c478bd9Sstevel@tonic-gate */ 34677c478bd9Sstevel@tonic-gate if (strncmp(contents, DEV "/", 34680a653502Swroche strlen(DEV) + strlen("/")) != 0) { 34697c478bd9Sstevel@tonic-gate 34707c478bd9Sstevel@tonic-gate if ((ptr = strrchr(newlink, '/')) == NULL) { 34717c478bd9Sstevel@tonic-gate vprint(REMOVE_MID, "%s%s -> %s invalid " 34720a653502Swroche "link. missing '/'\n", fcn, 34730a653502Swroche newlink, contents); 34740a653502Swroche return; 34757c478bd9Sstevel@tonic-gate } 34767c478bd9Sstevel@tonic-gate *ptr = '\0'; 34777c478bd9Sstevel@tonic-gate (void) strcpy(stage_link, newlink); 34787c478bd9Sstevel@tonic-gate *ptr = '/'; 34797c478bd9Sstevel@tonic-gate (void) strcat(stage_link, "/"); 34807c478bd9Sstevel@tonic-gate (void) strcat(stage_link, contents); 34817c478bd9Sstevel@tonic-gate (void) strcpy(newlink, stage_link); 34827c478bd9Sstevel@tonic-gate } else { 34837c478bd9Sstevel@tonic-gate (void) strcpy(newlink, dev_dir); 34847c478bd9Sstevel@tonic-gate (void) strcat(newlink, "/"); 34857c478bd9Sstevel@tonic-gate (void) strcat(newlink, 34860a653502Swroche &contents[strlen(DEV) + strlen("/")]); 34877c478bd9Sstevel@tonic-gate } 34887c478bd9Sstevel@tonic-gate 34897c478bd9Sstevel@tonic-gate } else { 34907c478bd9Sstevel@tonic-gate newlink[0] = '\0'; 34917c478bd9Sstevel@tonic-gate } 34927c478bd9Sstevel@tonic-gate } while (newlink[0] != '\0'); 34937c478bd9Sstevel@tonic-gate 34947c478bd9Sstevel@tonic-gate if (strncmp(devlink, dev_dir, strlen(dev_dir)) != 0) { 34957c478bd9Sstevel@tonic-gate vprint(BUILDCACHE_MID, "%sinvalid link: %s\n", fcn, devlink); 34967c478bd9Sstevel@tonic-gate return; 34977c478bd9Sstevel@tonic-gate } 34987c478bd9Sstevel@tonic-gate 34997c478bd9Sstevel@tonic-gate r_devlink = devlink + strlen(dev_dir); 35007c478bd9Sstevel@tonic-gate 35017c478bd9Sstevel@tonic-gate if (r_devlink[0] != '/') 35027c478bd9Sstevel@tonic-gate return; 35037c478bd9Sstevel@tonic-gate 35047c478bd9Sstevel@tonic-gate link = s_malloc(sizeof (link_t)); 35057c478bd9Sstevel@tonic-gate 35067c478bd9Sstevel@tonic-gate /* don't store the '/' after rootdir/dev */ 35077c478bd9Sstevel@tonic-gate r_devlink += 1; 35087c478bd9Sstevel@tonic-gate 35097c478bd9Sstevel@tonic-gate vprint(BUILDCACHE_MID, "%scaching link: %s\n", fcn, r_devlink); 35107c478bd9Sstevel@tonic-gate link->devlink = s_strdup(r_devlink); 35117c478bd9Sstevel@tonic-gate 35127c478bd9Sstevel@tonic-gate link->contents = s_strdup(r_contents); 35137c478bd9Sstevel@tonic-gate 35147c478bd9Sstevel@tonic-gate link->next = linkhead->link; 35157c478bd9Sstevel@tonic-gate linkhead->link = link; 35167c478bd9Sstevel@tonic-gate } 35177c478bd9Sstevel@tonic-gate 35187c478bd9Sstevel@tonic-gate /* 35197c478bd9Sstevel@tonic-gate * to be consistent, devlink must not begin with / and must be 35207c478bd9Sstevel@tonic-gate * relative to /dev/, whereas physpath must contain / and be 35217c478bd9Sstevel@tonic-gate * relative to /devices. 35227c478bd9Sstevel@tonic-gate */ 35237c478bd9Sstevel@tonic-gate static void 35247c478bd9Sstevel@tonic-gate add_link_to_cache(char *devlink, char *physpath) 35257c478bd9Sstevel@tonic-gate { 35267c478bd9Sstevel@tonic-gate linkhead_t *linkhead; 35277c478bd9Sstevel@tonic-gate link_t *link; 35287c478bd9Sstevel@tonic-gate int added = 0; 35297c478bd9Sstevel@tonic-gate 35307c478bd9Sstevel@tonic-gate if (file_mods == FALSE) { 35317c478bd9Sstevel@tonic-gate return; 35327c478bd9Sstevel@tonic-gate } 35337c478bd9Sstevel@tonic-gate 35347c478bd9Sstevel@tonic-gate vprint(CACHE_MID, "add_link_to_cache: %s -> %s ", 35350a653502Swroche devlink, physpath); 35367c478bd9Sstevel@tonic-gate 35377c478bd9Sstevel@tonic-gate for (linkhead = headlinkhead; linkhead != NULL; 35380a653502Swroche linkhead = linkhead->nexthead) { 35390a653502Swroche if (regexec(&(linkhead->dir_re_compiled), devlink, 0, NULL, 0) 35400a653502Swroche == 0) { 35417c478bd9Sstevel@tonic-gate added++; 35427c478bd9Sstevel@tonic-gate link = s_malloc(sizeof (link_t)); 35437c478bd9Sstevel@tonic-gate link->devlink = s_strdup(devlink); 35447c478bd9Sstevel@tonic-gate link->contents = s_strdup(physpath); 35457c478bd9Sstevel@tonic-gate link->next = linkhead->link; 35467c478bd9Sstevel@tonic-gate linkhead->link = link; 35477c478bd9Sstevel@tonic-gate } 35487c478bd9Sstevel@tonic-gate } 35497c478bd9Sstevel@tonic-gate 35507c478bd9Sstevel@tonic-gate vprint(CACHE_MID, 35510a653502Swroche " %d %s\n", added, added == 0 ? "NOT ADDED" : "ADDED"); 35527c478bd9Sstevel@tonic-gate } 35537c478bd9Sstevel@tonic-gate 35547c478bd9Sstevel@tonic-gate /* 35557c478bd9Sstevel@tonic-gate * Remove devlink from cache. Devlink must be relative to /dev/ and not start 35567c478bd9Sstevel@tonic-gate * with /. 35577c478bd9Sstevel@tonic-gate */ 35587c478bd9Sstevel@tonic-gate static void 35597c478bd9Sstevel@tonic-gate rm_link_from_cache(char *devlink) 35607c478bd9Sstevel@tonic-gate { 35617c478bd9Sstevel@tonic-gate linkhead_t *linkhead; 35627c478bd9Sstevel@tonic-gate link_t **linkp; 35637c478bd9Sstevel@tonic-gate link_t *save; 35647c478bd9Sstevel@tonic-gate 35657c478bd9Sstevel@tonic-gate vprint(CACHE_MID, "rm_link_from_cache enter: %s\n", devlink); 35667c478bd9Sstevel@tonic-gate 35677c478bd9Sstevel@tonic-gate for (linkhead = headlinkhead; linkhead != NULL; 35687c478bd9Sstevel@tonic-gate linkhead = linkhead->nexthead) { 35690a653502Swroche if (regexec(&(linkhead->dir_re_compiled), devlink, 0, NULL, 0) 35700a653502Swroche == 0) { 35717c478bd9Sstevel@tonic-gate 35727c478bd9Sstevel@tonic-gate for (linkp = &(linkhead->link); *linkp != NULL; ) { 35737c478bd9Sstevel@tonic-gate if ((strcmp((*linkp)->devlink, devlink) == 0)) { 35747c478bd9Sstevel@tonic-gate save = *linkp; 35757c478bd9Sstevel@tonic-gate *linkp = (*linkp)->next; 35767c478bd9Sstevel@tonic-gate /* 35777c478bd9Sstevel@tonic-gate * We are removing our caller's 35787c478bd9Sstevel@tonic-gate * "next" link. Update the nextlink 35797c478bd9Sstevel@tonic-gate * field in the head so that our 35807c478bd9Sstevel@tonic-gate * callers accesses the next valid 35817c478bd9Sstevel@tonic-gate * link 35827c478bd9Sstevel@tonic-gate */ 35837c478bd9Sstevel@tonic-gate if (linkhead->nextlink == save) 35847c478bd9Sstevel@tonic-gate linkhead->nextlink = *linkp; 35857c478bd9Sstevel@tonic-gate free(save->devlink); 35867c478bd9Sstevel@tonic-gate free(save->contents); 35877c478bd9Sstevel@tonic-gate free(save); 35887c478bd9Sstevel@tonic-gate vprint(CACHE_MID, " %s FREED FROM " 35890a653502Swroche "CACHE\n", devlink); 35907c478bd9Sstevel@tonic-gate } else { 35917c478bd9Sstevel@tonic-gate linkp = &((*linkp)->next); 35927c478bd9Sstevel@tonic-gate } 35937c478bd9Sstevel@tonic-gate } 35947c478bd9Sstevel@tonic-gate } 35957c478bd9Sstevel@tonic-gate } 35967c478bd9Sstevel@tonic-gate } 35977c478bd9Sstevel@tonic-gate 35987c478bd9Sstevel@tonic-gate static void 35997c478bd9Sstevel@tonic-gate rm_all_links_from_cache() 36007c478bd9Sstevel@tonic-gate { 36017c478bd9Sstevel@tonic-gate linkhead_t *linkhead; 36027c478bd9Sstevel@tonic-gate linkhead_t *nextlinkhead; 36037c478bd9Sstevel@tonic-gate link_t *link; 36047c478bd9Sstevel@tonic-gate link_t *nextlink; 36057c478bd9Sstevel@tonic-gate 36067c478bd9Sstevel@tonic-gate vprint(CACHE_MID, "rm_all_links_from_cache\n"); 36077c478bd9Sstevel@tonic-gate 36087c478bd9Sstevel@tonic-gate for (linkhead = headlinkhead; linkhead != NULL; 36090a653502Swroche linkhead = nextlinkhead) { 36107c478bd9Sstevel@tonic-gate 36117c478bd9Sstevel@tonic-gate nextlinkhead = linkhead->nexthead; 36127c478bd9Sstevel@tonic-gate assert(linkhead->nextlink == NULL); 36137c478bd9Sstevel@tonic-gate for (link = linkhead->link; link != NULL; link = nextlink) { 36147c478bd9Sstevel@tonic-gate nextlink = link->next; 36157c478bd9Sstevel@tonic-gate free(link->devlink); 36167c478bd9Sstevel@tonic-gate free(link->contents); 36177c478bd9Sstevel@tonic-gate free(link); 36187c478bd9Sstevel@tonic-gate } 36197c478bd9Sstevel@tonic-gate regfree(&(linkhead->dir_re_compiled)); 36207c478bd9Sstevel@tonic-gate free(linkhead->dir_re); 36217c478bd9Sstevel@tonic-gate free(linkhead); 36227c478bd9Sstevel@tonic-gate } 36237c478bd9Sstevel@tonic-gate headlinkhead = NULL; 36247c478bd9Sstevel@tonic-gate } 36257c478bd9Sstevel@tonic-gate 36267c478bd9Sstevel@tonic-gate /* 36277c478bd9Sstevel@tonic-gate * Called when the kernel has modified the incore path_to_inst data. This 36287c478bd9Sstevel@tonic-gate * function will schedule a flush of the data to the filesystem. 36297c478bd9Sstevel@tonic-gate */ 36307c478bd9Sstevel@tonic-gate static void 36317c478bd9Sstevel@tonic-gate devfs_instance_mod(void) 36327c478bd9Sstevel@tonic-gate { 36337c478bd9Sstevel@tonic-gate char *fcn = "devfs_instance_mod: "; 36347c478bd9Sstevel@tonic-gate vprint(PATH2INST_MID, "%senter\n", fcn); 36357c478bd9Sstevel@tonic-gate 36367c478bd9Sstevel@tonic-gate /* signal instance thread */ 36377c478bd9Sstevel@tonic-gate (void) mutex_lock(&count_lock); 36387c478bd9Sstevel@tonic-gate inst_count++; 36397c478bd9Sstevel@tonic-gate (void) cond_signal(&cv); 36407c478bd9Sstevel@tonic-gate (void) mutex_unlock(&count_lock); 36417c478bd9Sstevel@tonic-gate } 36427c478bd9Sstevel@tonic-gate 36437c478bd9Sstevel@tonic-gate static void 36447c478bd9Sstevel@tonic-gate instance_flush_thread(void) 36457c478bd9Sstevel@tonic-gate { 36467c478bd9Sstevel@tonic-gate int i; 36477c478bd9Sstevel@tonic-gate int idle; 36487c478bd9Sstevel@tonic-gate 36497c478bd9Sstevel@tonic-gate for (;;) { 36507c478bd9Sstevel@tonic-gate 36517c478bd9Sstevel@tonic-gate (void) mutex_lock(&count_lock); 36527c478bd9Sstevel@tonic-gate while (inst_count == 0) { 36537c478bd9Sstevel@tonic-gate (void) cond_wait(&cv, &count_lock); 36547c478bd9Sstevel@tonic-gate } 36557c478bd9Sstevel@tonic-gate inst_count = 0; 36567c478bd9Sstevel@tonic-gate 36577c478bd9Sstevel@tonic-gate vprint(PATH2INST_MID, "signaled to flush path_to_inst." 36580a653502Swroche " Enter delay loop\n"); 36597c478bd9Sstevel@tonic-gate /* 36607c478bd9Sstevel@tonic-gate * Wait MAX_IDLE_DELAY seconds after getting the last flush 36617c478bd9Sstevel@tonic-gate * path_to_inst event before invoking a flush, but never wait 36627c478bd9Sstevel@tonic-gate * more than MAX_DELAY seconds after getting the first event. 36637c478bd9Sstevel@tonic-gate */ 36647c478bd9Sstevel@tonic-gate for (idle = 0, i = 0; i < MAX_DELAY; i++) { 36657c478bd9Sstevel@tonic-gate 36667c478bd9Sstevel@tonic-gate (void) mutex_unlock(&count_lock); 36677c478bd9Sstevel@tonic-gate (void) sleep(1); 36687c478bd9Sstevel@tonic-gate (void) mutex_lock(&count_lock); 36697c478bd9Sstevel@tonic-gate 36707c478bd9Sstevel@tonic-gate /* shorten the delay if we are idle */ 36717c478bd9Sstevel@tonic-gate if (inst_count == 0) { 36727c478bd9Sstevel@tonic-gate idle++; 36737c478bd9Sstevel@tonic-gate if (idle > MAX_IDLE_DELAY) { 36747c478bd9Sstevel@tonic-gate break; 36757c478bd9Sstevel@tonic-gate } 36767c478bd9Sstevel@tonic-gate } else { 36777c478bd9Sstevel@tonic-gate inst_count = idle = 0; 36787c478bd9Sstevel@tonic-gate } 36797c478bd9Sstevel@tonic-gate } 36807c478bd9Sstevel@tonic-gate 36817c478bd9Sstevel@tonic-gate (void) mutex_unlock(&count_lock); 36827c478bd9Sstevel@tonic-gate 36837c478bd9Sstevel@tonic-gate flush_path_to_inst(); 36847c478bd9Sstevel@tonic-gate } 36857c478bd9Sstevel@tonic-gate } 36867c478bd9Sstevel@tonic-gate 36877c478bd9Sstevel@tonic-gate /* 36887c478bd9Sstevel@tonic-gate * Helper function for flush_path_to_inst() below; this routine calls the 36897c478bd9Sstevel@tonic-gate * inst_sync syscall to flush the path_to_inst database to the given file. 36907c478bd9Sstevel@tonic-gate */ 36917c478bd9Sstevel@tonic-gate static int 36920a653502Swroche do_inst_sync(char *filename, char *instfilename) 36937c478bd9Sstevel@tonic-gate { 36947c478bd9Sstevel@tonic-gate void (*sigsaved)(int); 36950a653502Swroche int err = 0, flags = INST_SYNC_IF_REQUIRED; 36960a653502Swroche struct stat sb; 36970a653502Swroche 36980a653502Swroche if (stat(instfilename, &sb) == -1 && errno == ENOENT) 36990a653502Swroche flags = INST_SYNC_ALWAYS; 37007c478bd9Sstevel@tonic-gate 37017c478bd9Sstevel@tonic-gate vprint(INSTSYNC_MID, "do_inst_sync: about to flush %s\n", filename); 37027c478bd9Sstevel@tonic-gate sigsaved = sigset(SIGSYS, SIG_IGN); 37030a653502Swroche if (inst_sync(filename, flags) == -1) 37047c478bd9Sstevel@tonic-gate err = errno; 37057c478bd9Sstevel@tonic-gate (void) sigset(SIGSYS, sigsaved); 37067c478bd9Sstevel@tonic-gate 37077c478bd9Sstevel@tonic-gate switch (err) { 37087c478bd9Sstevel@tonic-gate case 0: 37097c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 37107c478bd9Sstevel@tonic-gate case EALREADY: /* no-op, path_to_inst already up to date */ 37117c478bd9Sstevel@tonic-gate return (EALREADY); 37127c478bd9Sstevel@tonic-gate case ENOSYS: 37137c478bd9Sstevel@tonic-gate err_print(CANT_LOAD_SYSCALL); 37147c478bd9Sstevel@tonic-gate break; 37157c478bd9Sstevel@tonic-gate case EPERM: 37167c478bd9Sstevel@tonic-gate err_print(SUPER_TO_SYNC); 37177c478bd9Sstevel@tonic-gate break; 37187c478bd9Sstevel@tonic-gate default: 37197c478bd9Sstevel@tonic-gate err_print(INSTSYNC_FAILED, filename, strerror(err)); 37207c478bd9Sstevel@tonic-gate break; 37217c478bd9Sstevel@tonic-gate } 37227c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 37237c478bd9Sstevel@tonic-gate } 37247c478bd9Sstevel@tonic-gate 37257c478bd9Sstevel@tonic-gate /* 37267c478bd9Sstevel@tonic-gate * Flush the kernel's path_to_inst database to /etc/path_to_inst. To do so 37277c478bd9Sstevel@tonic-gate * safely, the database is flushed to a temporary file, then moved into place. 37287c478bd9Sstevel@tonic-gate * 37297c478bd9Sstevel@tonic-gate * The following files are used during this process: 3730f2dbfd32SRobert Mustacchi * /etc/path_to_inst: The path_to_inst file 3731f2dbfd32SRobert Mustacchi * /etc/path_to_inst.<pid>: Contains data flushed from the kernel 3732f2dbfd32SRobert Mustacchi * /etc/path_to_inst.old: The backup file 3733f2dbfd32SRobert Mustacchi * /etc/path_to_inst.old.<pid>: Temp file for creating backup 37347c478bd9Sstevel@tonic-gate * 37357c478bd9Sstevel@tonic-gate */ 37367c478bd9Sstevel@tonic-gate static void 37377c478bd9Sstevel@tonic-gate flush_path_to_inst(void) 37387c478bd9Sstevel@tonic-gate { 37397c478bd9Sstevel@tonic-gate char *new_inst_file = NULL; 37407c478bd9Sstevel@tonic-gate char *old_inst_file = NULL; 37417c478bd9Sstevel@tonic-gate char *old_inst_file_npid = NULL; 37427c478bd9Sstevel@tonic-gate FILE *inst_file_fp = NULL; 37437c478bd9Sstevel@tonic-gate FILE *old_inst_file_fp = NULL; 37447c478bd9Sstevel@tonic-gate struct stat sb; 37457c478bd9Sstevel@tonic-gate int err = 0; 37467c478bd9Sstevel@tonic-gate int c; 37477c478bd9Sstevel@tonic-gate int inst_strlen; 37487c478bd9Sstevel@tonic-gate 37497c478bd9Sstevel@tonic-gate vprint(PATH2INST_MID, "flush_path_to_inst: %s\n", 37507c478bd9Sstevel@tonic-gate (flush_path_to_inst_enable == TRUE) ? "ENABLED" : "DISABLED"); 37517c478bd9Sstevel@tonic-gate 37527c478bd9Sstevel@tonic-gate if (flush_path_to_inst_enable == FALSE) { 37537c478bd9Sstevel@tonic-gate return; 37547c478bd9Sstevel@tonic-gate } 37557c478bd9Sstevel@tonic-gate 37567c478bd9Sstevel@tonic-gate inst_strlen = strlen(inst_file); 37577c478bd9Sstevel@tonic-gate new_inst_file = s_malloc(inst_strlen + PID_STR_LEN + 2); 37587c478bd9Sstevel@tonic-gate old_inst_file = s_malloc(inst_strlen + PID_STR_LEN + 6); 37597c478bd9Sstevel@tonic-gate old_inst_file_npid = s_malloc(inst_strlen + 37607c478bd9Sstevel@tonic-gate sizeof (INSTANCE_FILE_SUFFIX)); 37617c478bd9Sstevel@tonic-gate 37627c478bd9Sstevel@tonic-gate (void) snprintf(new_inst_file, inst_strlen + PID_STR_LEN + 2, 37630a653502Swroche "%s.%ld", inst_file, getpid()); 37647c478bd9Sstevel@tonic-gate 37657c478bd9Sstevel@tonic-gate if (stat(new_inst_file, &sb) == 0) { 37667c478bd9Sstevel@tonic-gate s_unlink(new_inst_file); 37677c478bd9Sstevel@tonic-gate } 37687c478bd9Sstevel@tonic-gate 37690a653502Swroche err = do_inst_sync(new_inst_file, inst_file); 37700a653502Swroche if (err != DEVFSADM_SUCCESS) { 37717c478bd9Sstevel@tonic-gate goto out; 37727c478bd9Sstevel@tonic-gate /*NOTREACHED*/ 37737c478bd9Sstevel@tonic-gate } 37747c478bd9Sstevel@tonic-gate 37757c478bd9Sstevel@tonic-gate /* 37767c478bd9Sstevel@tonic-gate * Now we deal with the somewhat tricky updating and renaming 37777c478bd9Sstevel@tonic-gate * of this critical piece of kernel state. 37787c478bd9Sstevel@tonic-gate */ 37797c478bd9Sstevel@tonic-gate 37807c478bd9Sstevel@tonic-gate /* 37817c478bd9Sstevel@tonic-gate * Copy the current instance file into a temporary file. 37827c478bd9Sstevel@tonic-gate * Then rename the temporary file into the backup (.old) 37837c478bd9Sstevel@tonic-gate * file and rename the newly flushed kernel data into 37847c478bd9Sstevel@tonic-gate * the instance file. 37857c478bd9Sstevel@tonic-gate * Of course if 'inst_file' doesn't exist, there's much 37867c478bd9Sstevel@tonic-gate * less for us to do .. tee hee. 37877c478bd9Sstevel@tonic-gate */ 37887c478bd9Sstevel@tonic-gate if ((inst_file_fp = fopen(inst_file, "r")) == NULL) { 37897c478bd9Sstevel@tonic-gate /* 37907c478bd9Sstevel@tonic-gate * No such file. Rename the new onto the old 37917c478bd9Sstevel@tonic-gate */ 37927c478bd9Sstevel@tonic-gate if ((err = rename(new_inst_file, inst_file)) != 0) 37937c478bd9Sstevel@tonic-gate err_print(RENAME_FAILED, inst_file, strerror(errno)); 37947c478bd9Sstevel@tonic-gate goto out; 37957c478bd9Sstevel@tonic-gate /*NOTREACHED*/ 37967c478bd9Sstevel@tonic-gate } 37977c478bd9Sstevel@tonic-gate 37987c478bd9Sstevel@tonic-gate (void) snprintf(old_inst_file, inst_strlen + PID_STR_LEN + 6, 37990a653502Swroche "%s.old.%ld", inst_file, getpid()); 38007c478bd9Sstevel@tonic-gate 38017c478bd9Sstevel@tonic-gate if (stat(old_inst_file, &sb) == 0) { 38027c478bd9Sstevel@tonic-gate s_unlink(old_inst_file); 38037c478bd9Sstevel@tonic-gate } 38047c478bd9Sstevel@tonic-gate 38057c478bd9Sstevel@tonic-gate if ((old_inst_file_fp = fopen(old_inst_file, "w")) == NULL) { 38067c478bd9Sstevel@tonic-gate /* 38077c478bd9Sstevel@tonic-gate * Can't open the 'old_inst_file' file for writing. 38087c478bd9Sstevel@tonic-gate * This is somewhat strange given that the syscall 38097c478bd9Sstevel@tonic-gate * just succeeded to write a file out.. hmm.. maybe 38107c478bd9Sstevel@tonic-gate * the fs just filled up or something nasty. 38117c478bd9Sstevel@tonic-gate * 38127c478bd9Sstevel@tonic-gate * Anyway, abort what we've done so far. 38137c478bd9Sstevel@tonic-gate */ 38147c478bd9Sstevel@tonic-gate err_print(CANT_UPDATE, old_inst_file); 38157c478bd9Sstevel@tonic-gate err = DEVFSADM_FAILURE; 38167c478bd9Sstevel@tonic-gate goto out; 38177c478bd9Sstevel@tonic-gate /*NOTREACHED*/ 38187c478bd9Sstevel@tonic-gate } 38197c478bd9Sstevel@tonic-gate 38207c478bd9Sstevel@tonic-gate /* 38217c478bd9Sstevel@tonic-gate * Copy current instance file into the temporary file 38227c478bd9Sstevel@tonic-gate */ 38237c478bd9Sstevel@tonic-gate err = 0; 38247c478bd9Sstevel@tonic-gate while ((c = getc(inst_file_fp)) != EOF) { 38257c478bd9Sstevel@tonic-gate if ((err = putc(c, old_inst_file_fp)) == EOF) { 38267c478bd9Sstevel@tonic-gate break; 38277c478bd9Sstevel@tonic-gate } 38287c478bd9Sstevel@tonic-gate } 38297c478bd9Sstevel@tonic-gate 38307c478bd9Sstevel@tonic-gate if (fclose(old_inst_file_fp) == EOF || err == EOF) { 38317c478bd9Sstevel@tonic-gate vprint(INFO_MID, CANT_UPDATE, old_inst_file); 38327c478bd9Sstevel@tonic-gate err = DEVFSADM_FAILURE; 38337c478bd9Sstevel@tonic-gate goto out; 38347c478bd9Sstevel@tonic-gate /* NOTREACHED */ 38357c478bd9Sstevel@tonic-gate } 38367c478bd9Sstevel@tonic-gate 38377c478bd9Sstevel@tonic-gate /* 38387c478bd9Sstevel@tonic-gate * Set permissions to be the same on the backup as 38397c478bd9Sstevel@tonic-gate * /etc/path_to_inst. 38407c478bd9Sstevel@tonic-gate */ 38417c478bd9Sstevel@tonic-gate (void) chmod(old_inst_file, 0444); 38427c478bd9Sstevel@tonic-gate 38437c478bd9Sstevel@tonic-gate /* 38447c478bd9Sstevel@tonic-gate * So far, everything we've done is more or less reversible. 38457c478bd9Sstevel@tonic-gate * But now we're going to commit ourselves. 38467c478bd9Sstevel@tonic-gate */ 38477c478bd9Sstevel@tonic-gate 38487c478bd9Sstevel@tonic-gate (void) snprintf(old_inst_file_npid, 38497c478bd9Sstevel@tonic-gate inst_strlen + sizeof (INSTANCE_FILE_SUFFIX), 38507c478bd9Sstevel@tonic-gate "%s%s", inst_file, INSTANCE_FILE_SUFFIX); 38517c478bd9Sstevel@tonic-gate 38527c478bd9Sstevel@tonic-gate if ((err = rename(old_inst_file, old_inst_file_npid)) != 0) { 38537c478bd9Sstevel@tonic-gate err_print(RENAME_FAILED, old_inst_file_npid, 38540a653502Swroche strerror(errno)); 38557c478bd9Sstevel@tonic-gate } else if ((err = rename(new_inst_file, inst_file)) != 0) { 38567c478bd9Sstevel@tonic-gate err_print(RENAME_FAILED, inst_file, strerror(errno)); 38577c478bd9Sstevel@tonic-gate } 38587c478bd9Sstevel@tonic-gate 38597c478bd9Sstevel@tonic-gate out: 38607c478bd9Sstevel@tonic-gate if (inst_file_fp != NULL) { 38617c478bd9Sstevel@tonic-gate if (fclose(inst_file_fp) == EOF) { 38627c478bd9Sstevel@tonic-gate err_print(FCLOSE_FAILED, inst_file, strerror(errno)); 38637c478bd9Sstevel@tonic-gate } 38647c478bd9Sstevel@tonic-gate } 38657c478bd9Sstevel@tonic-gate 38667c478bd9Sstevel@tonic-gate if (stat(new_inst_file, &sb) == 0) { 38677c478bd9Sstevel@tonic-gate s_unlink(new_inst_file); 38687c478bd9Sstevel@tonic-gate } 38697c478bd9Sstevel@tonic-gate free(new_inst_file); 38707c478bd9Sstevel@tonic-gate 38717c478bd9Sstevel@tonic-gate if (stat(old_inst_file, &sb) == 0) { 38727c478bd9Sstevel@tonic-gate s_unlink(old_inst_file); 38737c478bd9Sstevel@tonic-gate } 38747c478bd9Sstevel@tonic-gate free(old_inst_file); 38757c478bd9Sstevel@tonic-gate 38767c478bd9Sstevel@tonic-gate free(old_inst_file_npid); 38777c478bd9Sstevel@tonic-gate 38787c478bd9Sstevel@tonic-gate if (err != 0 && err != EALREADY) { 38797c478bd9Sstevel@tonic-gate err_print(FAILED_TO_UPDATE, inst_file); 38807c478bd9Sstevel@tonic-gate } 38817c478bd9Sstevel@tonic-gate } 38827c478bd9Sstevel@tonic-gate 38837c478bd9Sstevel@tonic-gate /* 38847c478bd9Sstevel@tonic-gate * detach from tty. For daemon mode. 38857c478bd9Sstevel@tonic-gate */ 38867c478bd9Sstevel@tonic-gate void 38877c478bd9Sstevel@tonic-gate detachfromtty() 38887c478bd9Sstevel@tonic-gate { 38897c478bd9Sstevel@tonic-gate (void) setsid(); 38907c478bd9Sstevel@tonic-gate if (DEVFSADM_DEBUG_ON == TRUE) { 38917c478bd9Sstevel@tonic-gate return; 38927c478bd9Sstevel@tonic-gate } 38937c478bd9Sstevel@tonic-gate 38947c478bd9Sstevel@tonic-gate (void) close(0); 38957c478bd9Sstevel@tonic-gate (void) close(1); 38967c478bd9Sstevel@tonic-gate (void) close(2); 38977c478bd9Sstevel@tonic-gate (void) open("/dev/null", O_RDWR, 0); 38987c478bd9Sstevel@tonic-gate (void) dup(0); 38997c478bd9Sstevel@tonic-gate (void) dup(0); 39007c478bd9Sstevel@tonic-gate openlog(DEVFSADMD, LOG_PID, LOG_DAEMON); 39017c478bd9Sstevel@tonic-gate (void) setlogmask(LOG_UPTO(LOG_INFO)); 39027c478bd9Sstevel@tonic-gate logflag = TRUE; 39037c478bd9Sstevel@tonic-gate } 39047c478bd9Sstevel@tonic-gate 39057c478bd9Sstevel@tonic-gate /* 39067c478bd9Sstevel@tonic-gate * Use an advisory lock to synchronize updates to /dev. If the lock is 39077c478bd9Sstevel@tonic-gate * held by another process, block in the fcntl() system call until that 39087c478bd9Sstevel@tonic-gate * process drops the lock or exits. The lock file itself is 39097c478bd9Sstevel@tonic-gate * DEV_LOCK_FILE. The process id of the current and last process owning 39107c478bd9Sstevel@tonic-gate * the lock is kept in the lock file. After acquiring the lock, read the 39117c478bd9Sstevel@tonic-gate * process id and return it. It is the process ID which last owned the 39127c478bd9Sstevel@tonic-gate * lock, and will be used to determine if caches need to be flushed. 39137c478bd9Sstevel@tonic-gate * 39147c478bd9Sstevel@tonic-gate * NOTE: if the devlink database is held open by the caller, it may 39157c478bd9Sstevel@tonic-gate * be closed by this routine. This is to enforce the following lock ordering: 39167c478bd9Sstevel@tonic-gate * 1) /dev lock 2) database open 39177c478bd9Sstevel@tonic-gate */ 39187c478bd9Sstevel@tonic-gate pid_t 39197c478bd9Sstevel@tonic-gate enter_dev_lock() 39207c478bd9Sstevel@tonic-gate { 39217c478bd9Sstevel@tonic-gate struct flock lock; 39227c478bd9Sstevel@tonic-gate int n; 39237c478bd9Sstevel@tonic-gate pid_t pid; 39247c478bd9Sstevel@tonic-gate pid_t last_owner_pid; 39257c478bd9Sstevel@tonic-gate 39267c478bd9Sstevel@tonic-gate if (file_mods == FALSE) { 39277c478bd9Sstevel@tonic-gate return (0); 39287c478bd9Sstevel@tonic-gate } 39297c478bd9Sstevel@tonic-gate 39307c478bd9Sstevel@tonic-gate (void) snprintf(dev_lockfile, sizeof (dev_lockfile), 3931facf4a8dSllai "%s/%s", etc_dev_dir, DEV_LOCK_FILE); 39327c478bd9Sstevel@tonic-gate 39337c478bd9Sstevel@tonic-gate vprint(LOCK_MID, "enter_dev_lock: lock file %s\n", dev_lockfile); 39347c478bd9Sstevel@tonic-gate 39357c478bd9Sstevel@tonic-gate dev_lock_fd = open(dev_lockfile, O_CREAT|O_RDWR, 0644); 39367c478bd9Sstevel@tonic-gate if (dev_lock_fd < 0) { 39377c478bd9Sstevel@tonic-gate err_print(OPEN_FAILED, dev_lockfile, strerror(errno)); 39387c478bd9Sstevel@tonic-gate devfsadm_exit(1); 3939537714daSvikram /*NOTREACHED*/ 39407c478bd9Sstevel@tonic-gate } 39417c478bd9Sstevel@tonic-gate 39427c478bd9Sstevel@tonic-gate lock.l_type = F_WRLCK; 39437c478bd9Sstevel@tonic-gate lock.l_whence = SEEK_SET; 39447c478bd9Sstevel@tonic-gate lock.l_start = 0; 39457c478bd9Sstevel@tonic-gate lock.l_len = 0; 39467c478bd9Sstevel@tonic-gate 39477c478bd9Sstevel@tonic-gate /* try for the lock, but don't wait */ 39487c478bd9Sstevel@tonic-gate if (fcntl(dev_lock_fd, F_SETLK, &lock) == -1) { 39497c478bd9Sstevel@tonic-gate if ((errno == EACCES) || (errno == EAGAIN)) { 39507c478bd9Sstevel@tonic-gate pid = 0; 39517c478bd9Sstevel@tonic-gate n = read(dev_lock_fd, &pid, sizeof (pid_t)); 39527c478bd9Sstevel@tonic-gate vprint(LOCK_MID, "waiting for PID %d to complete\n", 39530a653502Swroche (int)pid); 39547c478bd9Sstevel@tonic-gate if (lseek(dev_lock_fd, 0, SEEK_SET) == (off_t)-1) { 39557c478bd9Sstevel@tonic-gate err_print(LSEEK_FAILED, dev_lockfile, 39560a653502Swroche strerror(errno)); 39577c478bd9Sstevel@tonic-gate devfsadm_exit(1); 3958537714daSvikram /*NOTREACHED*/ 39597c478bd9Sstevel@tonic-gate } 39607c478bd9Sstevel@tonic-gate /* 39617c478bd9Sstevel@tonic-gate * wait for the dev lock. If we have the database open, 39627c478bd9Sstevel@tonic-gate * close it first - the order of lock acquisition should 39637c478bd9Sstevel@tonic-gate * always be: 1) dev_lock 2) database 39647c478bd9Sstevel@tonic-gate * This is to prevent deadlocks with any locks the 39657c478bd9Sstevel@tonic-gate * database code may hold. 39667c478bd9Sstevel@tonic-gate */ 39677c478bd9Sstevel@tonic-gate (void) di_devlink_close(&devlink_cache, 0); 3968f05faa4eSjacobs 3969f05faa4eSjacobs /* send any sysevents that were queued up. */ 3970f05faa4eSjacobs process_syseventq(); 3971f05faa4eSjacobs 39727c478bd9Sstevel@tonic-gate if (fcntl(dev_lock_fd, F_SETLKW, &lock) == -1) { 39737c478bd9Sstevel@tonic-gate err_print(LOCK_FAILED, dev_lockfile, 39740a653502Swroche strerror(errno)); 39757c478bd9Sstevel@tonic-gate devfsadm_exit(1); 3976537714daSvikram /*NOTREACHED*/ 39777c478bd9Sstevel@tonic-gate } 39787c478bd9Sstevel@tonic-gate } 39797c478bd9Sstevel@tonic-gate } 39807c478bd9Sstevel@tonic-gate 39817c478bd9Sstevel@tonic-gate hold_dev_lock = TRUE; 39827c478bd9Sstevel@tonic-gate pid = 0; 39837c478bd9Sstevel@tonic-gate n = read(dev_lock_fd, &pid, sizeof (pid_t)); 39847c478bd9Sstevel@tonic-gate if (n == sizeof (pid_t) && pid == getpid()) { 39857c478bd9Sstevel@tonic-gate return (pid); 39867c478bd9Sstevel@tonic-gate } 39877c478bd9Sstevel@tonic-gate 39887c478bd9Sstevel@tonic-gate last_owner_pid = pid; 39897c478bd9Sstevel@tonic-gate 39907c478bd9Sstevel@tonic-gate if (lseek(dev_lock_fd, 0, SEEK_SET) == (off_t)-1) { 39917c478bd9Sstevel@tonic-gate err_print(LSEEK_FAILED, dev_lockfile, strerror(errno)); 39927c478bd9Sstevel@tonic-gate devfsadm_exit(1); 3993537714daSvikram /*NOTREACHED*/ 39947c478bd9Sstevel@tonic-gate } 39957c478bd9Sstevel@tonic-gate pid = getpid(); 39967c478bd9Sstevel@tonic-gate n = write(dev_lock_fd, &pid, sizeof (pid_t)); 39977c478bd9Sstevel@tonic-gate if (n != sizeof (pid_t)) { 39987c478bd9Sstevel@tonic-gate err_print(WRITE_FAILED, dev_lockfile, strerror(errno)); 39997c478bd9Sstevel@tonic-gate devfsadm_exit(1); 4000537714daSvikram /*NOTREACHED*/ 40017c478bd9Sstevel@tonic-gate } 40027c478bd9Sstevel@tonic-gate 40037c478bd9Sstevel@tonic-gate return (last_owner_pid); 40047c478bd9Sstevel@tonic-gate } 40057c478bd9Sstevel@tonic-gate 40067c478bd9Sstevel@tonic-gate /* 40077c478bd9Sstevel@tonic-gate * Drop the advisory /dev lock, close lock file. Close and re-open the 40087c478bd9Sstevel@tonic-gate * file every time so to ensure a resync if for some reason the lock file 40097c478bd9Sstevel@tonic-gate * gets removed. 40107c478bd9Sstevel@tonic-gate */ 40117c478bd9Sstevel@tonic-gate void 4012537714daSvikram exit_dev_lock(int exiting) 40137c478bd9Sstevel@tonic-gate { 40147c478bd9Sstevel@tonic-gate struct flock unlock; 40157c478bd9Sstevel@tonic-gate 40167c478bd9Sstevel@tonic-gate if (hold_dev_lock == FALSE) { 40177c478bd9Sstevel@tonic-gate return; 40187c478bd9Sstevel@tonic-gate } 40197c478bd9Sstevel@tonic-gate 4020537714daSvikram vprint(LOCK_MID, "exit_dev_lock: lock file %s, exiting = %d\n", 4021537714daSvikram dev_lockfile, exiting); 40227c478bd9Sstevel@tonic-gate 40237c478bd9Sstevel@tonic-gate unlock.l_type = F_UNLCK; 40247c478bd9Sstevel@tonic-gate unlock.l_whence = SEEK_SET; 40257c478bd9Sstevel@tonic-gate unlock.l_start = 0; 40267c478bd9Sstevel@tonic-gate unlock.l_len = 0; 40277c478bd9Sstevel@tonic-gate 40287c478bd9Sstevel@tonic-gate if (fcntl(dev_lock_fd, F_SETLK, &unlock) == -1) { 40297c478bd9Sstevel@tonic-gate err_print(UNLOCK_FAILED, dev_lockfile, strerror(errno)); 40307c478bd9Sstevel@tonic-gate } 40317c478bd9Sstevel@tonic-gate 40327c478bd9Sstevel@tonic-gate hold_dev_lock = FALSE; 40337c478bd9Sstevel@tonic-gate 40347c478bd9Sstevel@tonic-gate if (close(dev_lock_fd) == -1) { 40357c478bd9Sstevel@tonic-gate err_print(CLOSE_FAILED, dev_lockfile, strerror(errno)); 4036537714daSvikram if (!exiting) 4037537714daSvikram devfsadm_exit(1); 4038537714daSvikram /*NOTREACHED*/ 40397c478bd9Sstevel@tonic-gate } 40407c478bd9Sstevel@tonic-gate } 40417c478bd9Sstevel@tonic-gate 40427c478bd9Sstevel@tonic-gate /* 40437c478bd9Sstevel@tonic-gate * 40447c478bd9Sstevel@tonic-gate * Use an advisory lock to ensure that only one daemon process is active 40457c478bd9Sstevel@tonic-gate * in the system at any point in time. If the lock is held by another 40467c478bd9Sstevel@tonic-gate * process, do not block but return the pid owner of the lock to the 40477c478bd9Sstevel@tonic-gate * caller immediately. The lock is cleared if the holding daemon process 40487c478bd9Sstevel@tonic-gate * exits for any reason even if the lock file remains, so the daemon can 40497c478bd9Sstevel@tonic-gate * be restarted if necessary. The lock file is DAEMON_LOCK_FILE. 40507c478bd9Sstevel@tonic-gate */ 40517c478bd9Sstevel@tonic-gate pid_t 40527c478bd9Sstevel@tonic-gate enter_daemon_lock(void) 40537c478bd9Sstevel@tonic-gate { 40547c478bd9Sstevel@tonic-gate struct flock lock; 40557c478bd9Sstevel@tonic-gate 40567c478bd9Sstevel@tonic-gate (void) snprintf(daemon_lockfile, sizeof (daemon_lockfile), 4057facf4a8dSllai "%s/%s", etc_dev_dir, DAEMON_LOCK_FILE); 40587c478bd9Sstevel@tonic-gate 40597c478bd9Sstevel@tonic-gate vprint(LOCK_MID, "enter_daemon_lock: lock file %s\n", daemon_lockfile); 40607c478bd9Sstevel@tonic-gate 40617c478bd9Sstevel@tonic-gate daemon_lock_fd = open(daemon_lockfile, O_CREAT|O_RDWR, 0644); 40627c478bd9Sstevel@tonic-gate if (daemon_lock_fd < 0) { 40637c478bd9Sstevel@tonic-gate err_print(OPEN_FAILED, daemon_lockfile, strerror(errno)); 40647c478bd9Sstevel@tonic-gate devfsadm_exit(1); 4065537714daSvikram /*NOTREACHED*/ 40667c478bd9Sstevel@tonic-gate } 40677c478bd9Sstevel@tonic-gate 40687c478bd9Sstevel@tonic-gate lock.l_type = F_WRLCK; 40697c478bd9Sstevel@tonic-gate lock.l_whence = SEEK_SET; 40707c478bd9Sstevel@tonic-gate lock.l_start = 0; 40717c478bd9Sstevel@tonic-gate lock.l_len = 0; 40727c478bd9Sstevel@tonic-gate 40737c478bd9Sstevel@tonic-gate if (fcntl(daemon_lock_fd, F_SETLK, &lock) == -1) { 40747c478bd9Sstevel@tonic-gate 40757c478bd9Sstevel@tonic-gate if (errno == EAGAIN || errno == EDEADLK) { 40767c478bd9Sstevel@tonic-gate if (fcntl(daemon_lock_fd, F_GETLK, &lock) == -1) { 40777c478bd9Sstevel@tonic-gate err_print(LOCK_FAILED, daemon_lockfile, 40780a653502Swroche strerror(errno)); 40797c478bd9Sstevel@tonic-gate devfsadm_exit(1); 4080537714daSvikram /*NOTREACHED*/ 40817c478bd9Sstevel@tonic-gate } 40827c478bd9Sstevel@tonic-gate return (lock.l_pid); 40837c478bd9Sstevel@tonic-gate } 40847c478bd9Sstevel@tonic-gate } 40857c478bd9Sstevel@tonic-gate hold_daemon_lock = TRUE; 40867c478bd9Sstevel@tonic-gate return (getpid()); 40877c478bd9Sstevel@tonic-gate } 40887c478bd9Sstevel@tonic-gate 40897c478bd9Sstevel@tonic-gate /* 40907c478bd9Sstevel@tonic-gate * Drop the advisory daemon lock, close lock file 40917c478bd9Sstevel@tonic-gate */ 40927c478bd9Sstevel@tonic-gate void 4093537714daSvikram exit_daemon_lock(int exiting) 40947c478bd9Sstevel@tonic-gate { 40957c478bd9Sstevel@tonic-gate struct flock lock; 40967c478bd9Sstevel@tonic-gate 40977c478bd9Sstevel@tonic-gate if (hold_daemon_lock == FALSE) { 40987c478bd9Sstevel@tonic-gate return; 40997c478bd9Sstevel@tonic-gate } 41007c478bd9Sstevel@tonic-gate 4101537714daSvikram vprint(LOCK_MID, "exit_daemon_lock: lock file %s, exiting = %d\n", 4102537714daSvikram daemon_lockfile, exiting); 41037c478bd9Sstevel@tonic-gate 41047c478bd9Sstevel@tonic-gate lock.l_type = F_UNLCK; 41057c478bd9Sstevel@tonic-gate lock.l_whence = SEEK_SET; 41067c478bd9Sstevel@tonic-gate lock.l_start = 0; 41077c478bd9Sstevel@tonic-gate lock.l_len = 0; 41087c478bd9Sstevel@tonic-gate 41097c478bd9Sstevel@tonic-gate if (fcntl(daemon_lock_fd, F_SETLK, &lock) == -1) { 41107c478bd9Sstevel@tonic-gate err_print(UNLOCK_FAILED, daemon_lockfile, strerror(errno)); 41117c478bd9Sstevel@tonic-gate } 41127c478bd9Sstevel@tonic-gate 41137c478bd9Sstevel@tonic-gate if (close(daemon_lock_fd) == -1) { 41147c478bd9Sstevel@tonic-gate err_print(CLOSE_FAILED, daemon_lockfile, strerror(errno)); 4115537714daSvikram if (!exiting) 4116537714daSvikram devfsadm_exit(1); 4117537714daSvikram /*NOTREACHED*/ 41187c478bd9Sstevel@tonic-gate } 41197c478bd9Sstevel@tonic-gate } 41207c478bd9Sstevel@tonic-gate 41217c478bd9Sstevel@tonic-gate /* 41227c478bd9Sstevel@tonic-gate * Called to removed danging nodes in two different modes: RM_PRE, RM_POST. 41237c478bd9Sstevel@tonic-gate * RM_PRE mode is called before processing the entire devinfo tree, and RM_POST 41247c478bd9Sstevel@tonic-gate * is called after processing the entire devinfo tree. 41257c478bd9Sstevel@tonic-gate */ 41267c478bd9Sstevel@tonic-gate static void 41277c478bd9Sstevel@tonic-gate pre_and_post_cleanup(int flags) 41287c478bd9Sstevel@tonic-gate { 41297c478bd9Sstevel@tonic-gate remove_list_t *rm; 41307c478bd9Sstevel@tonic-gate recurse_dev_t rd; 41317c478bd9Sstevel@tonic-gate cleanup_data_t cleanup_data; 41327c478bd9Sstevel@tonic-gate char *fcn = "pre_and_post_cleanup: "; 41337c478bd9Sstevel@tonic-gate 41347c478bd9Sstevel@tonic-gate if (build_dev == FALSE) 41357c478bd9Sstevel@tonic-gate return; 41367c478bd9Sstevel@tonic-gate 41377c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "attempting %s-cleanup\n", 41387c478bd9Sstevel@tonic-gate flags == RM_PRE ? "pre" : "post"); 41397c478bd9Sstevel@tonic-gate vprint(REMOVE_MID, "%sflags = %d\n", fcn, flags); 41407c478bd9Sstevel@tonic-gate 41417c478bd9Sstevel@tonic-gate /* 41427c478bd9Sstevel@tonic-gate * the generic function recurse_dev_re is shared among different 41437c478bd9Sstevel@tonic-gate * functions, so set the method and data that it should use for 41447c478bd9Sstevel@tonic-gate * matches. 41457c478bd9Sstevel@tonic-gate */ 41467c478bd9Sstevel@tonic-gate rd.fcn = matching_dev; 41477c478bd9Sstevel@tonic-gate rd.data = (void *)&cleanup_data; 41487c478bd9Sstevel@tonic-gate cleanup_data.flags = flags; 41497c478bd9Sstevel@tonic-gate 4150aa646b9dSvikram (void) mutex_lock(&nfp_mutex); 4151aa646b9dSvikram nfphash_create(); 4152aa646b9dSvikram 41537c478bd9Sstevel@tonic-gate for (rm = remove_head; rm != NULL; rm = rm->next) { 41547c478bd9Sstevel@tonic-gate if ((flags & rm->remove->flags) == flags) { 41557c478bd9Sstevel@tonic-gate cleanup_data.rm = rm; 41567c478bd9Sstevel@tonic-gate /* 41577c478bd9Sstevel@tonic-gate * If reached this point, RM_PRE or RM_POST cleanup is 41587c478bd9Sstevel@tonic-gate * desired. clean_ok() decides whether to clean 41597c478bd9Sstevel@tonic-gate * under the given circumstances. 41607c478bd9Sstevel@tonic-gate */ 41617c478bd9Sstevel@tonic-gate vprint(REMOVE_MID, "%scleanup: PRE or POST\n", fcn); 41627c478bd9Sstevel@tonic-gate if (clean_ok(rm->remove) == DEVFSADM_SUCCESS) { 41637c478bd9Sstevel@tonic-gate vprint(REMOVE_MID, "cleanup: cleanup OK\n"); 41640a653502Swroche recurse_dev_re(dev_dir, 41650a653502Swroche rm->remove->dev_dirs_re, &rd); 41667c478bd9Sstevel@tonic-gate } 41677c478bd9Sstevel@tonic-gate } 41687c478bd9Sstevel@tonic-gate } 4169aa646b9dSvikram nfphash_destroy(); 4170aa646b9dSvikram (void) mutex_unlock(&nfp_mutex); 41717c478bd9Sstevel@tonic-gate } 41727c478bd9Sstevel@tonic-gate 41737c478bd9Sstevel@tonic-gate /* 41747c478bd9Sstevel@tonic-gate * clean_ok() determines whether cleanup should be done according 41757c478bd9Sstevel@tonic-gate * to the following matrix: 41767c478bd9Sstevel@tonic-gate * 41777c478bd9Sstevel@tonic-gate * command line arguments RM_PRE RM_POST RM_PRE && RM_POST && 41787c478bd9Sstevel@tonic-gate * RM_ALWAYS RM_ALWAYS 41797c478bd9Sstevel@tonic-gate * ---------------------- ------ ----- --------- ---------- 41807c478bd9Sstevel@tonic-gate * 41817c478bd9Sstevel@tonic-gate * <neither -c nor -C> - - pre-clean post-clean 41827c478bd9Sstevel@tonic-gate * 41837c478bd9Sstevel@tonic-gate * -C pre-clean post-clean pre-clean post-clean 41847c478bd9Sstevel@tonic-gate * 41857c478bd9Sstevel@tonic-gate * -C -c class pre-clean post-clean pre-clean post-clean 41867c478bd9Sstevel@tonic-gate * if class if class if class if class 41877c478bd9Sstevel@tonic-gate * matches matches matches matches 41887c478bd9Sstevel@tonic-gate * 41897c478bd9Sstevel@tonic-gate * -c class - - pre-clean post-clean 41907c478bd9Sstevel@tonic-gate * if class if class 41917c478bd9Sstevel@tonic-gate * matches matches 41927c478bd9Sstevel@tonic-gate * 41937c478bd9Sstevel@tonic-gate */ 41947c478bd9Sstevel@tonic-gate static int 4195aa646b9dSvikram clean_ok(devfsadm_remove_V1_t *remove) 41967c478bd9Sstevel@tonic-gate { 41977c478bd9Sstevel@tonic-gate int i; 41987c478bd9Sstevel@tonic-gate 41997c478bd9Sstevel@tonic-gate if (single_drv == TRUE) { 42007c478bd9Sstevel@tonic-gate /* no cleanup at all when using -i option */ 42017c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 42027c478bd9Sstevel@tonic-gate } 42037c478bd9Sstevel@tonic-gate 42047c478bd9Sstevel@tonic-gate /* 42057c478bd9Sstevel@tonic-gate * no cleanup if drivers are not loaded. We make an exception 42067c478bd9Sstevel@tonic-gate * for the "disks" program however, since disks has a public 42077c478bd9Sstevel@tonic-gate * cleanup flag (-C) and disk drivers are usually never 42087c478bd9Sstevel@tonic-gate * unloaded. 42097c478bd9Sstevel@tonic-gate */ 42107c478bd9Sstevel@tonic-gate if (load_attach_drv == FALSE && strcmp(prog, DISKS) != 0) { 42117c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 42127c478bd9Sstevel@tonic-gate } 42137c478bd9Sstevel@tonic-gate 42147c478bd9Sstevel@tonic-gate /* if the cleanup flag was not specified, return false */ 42157c478bd9Sstevel@tonic-gate if ((cleanup == FALSE) && ((remove->flags & RM_ALWAYS) == 0)) { 42167c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 42177c478bd9Sstevel@tonic-gate } 42187c478bd9Sstevel@tonic-gate 42197c478bd9Sstevel@tonic-gate if (num_classes == 0) { 42207c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 42217c478bd9Sstevel@tonic-gate } 42227c478bd9Sstevel@tonic-gate 42237c478bd9Sstevel@tonic-gate /* 42247c478bd9Sstevel@tonic-gate * if reached this point, check to see if the class in the given 42257c478bd9Sstevel@tonic-gate * remove structure matches a class given on the command line 42267c478bd9Sstevel@tonic-gate */ 42277c478bd9Sstevel@tonic-gate 42287c478bd9Sstevel@tonic-gate for (i = 0; i < num_classes; i++) { 42297c478bd9Sstevel@tonic-gate if (strcmp(remove->device_class, classes[i]) == 0) { 42307c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 42317c478bd9Sstevel@tonic-gate } 42327c478bd9Sstevel@tonic-gate } 42337c478bd9Sstevel@tonic-gate 42347c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 42357c478bd9Sstevel@tonic-gate } 42367c478bd9Sstevel@tonic-gate 42377c478bd9Sstevel@tonic-gate /* 42387c478bd9Sstevel@tonic-gate * Called to remove dangling nodes after receiving a hotplug event 42397c478bd9Sstevel@tonic-gate * containing the physical node pathname to be removed. 42407c478bd9Sstevel@tonic-gate */ 42417c478bd9Sstevel@tonic-gate void 42427c478bd9Sstevel@tonic-gate hot_cleanup(char *node_path, char *minor_name, char *ev_subclass, 42437c478bd9Sstevel@tonic-gate char *driver_name, int instance) 42447c478bd9Sstevel@tonic-gate { 42457c478bd9Sstevel@tonic-gate link_t *link; 42467c478bd9Sstevel@tonic-gate linkhead_t *head; 42477c478bd9Sstevel@tonic-gate remove_list_t *rm; 42487c478bd9Sstevel@tonic-gate char *fcn = "hot_cleanup: "; 42497c478bd9Sstevel@tonic-gate char path[PATH_MAX + 1]; 42507c478bd9Sstevel@tonic-gate int path_len; 42517c478bd9Sstevel@tonic-gate char rmlink[PATH_MAX + 1]; 42527c478bd9Sstevel@tonic-gate nvlist_t *nvl = NULL; 4253fb9251a6Scth int skip; 4254aa646b9dSvikram int ret; 42557c478bd9Sstevel@tonic-gate 42567c478bd9Sstevel@tonic-gate /* 42577c478bd9Sstevel@tonic-gate * dev links can go away as part of hot cleanup. 42587c478bd9Sstevel@tonic-gate * So first build event attributes in order capture dev links. 42597c478bd9Sstevel@tonic-gate */ 42607c478bd9Sstevel@tonic-gate if (ev_subclass != NULL) 42617c478bd9Sstevel@tonic-gate nvl = build_event_attributes(EC_DEV_REMOVE, ev_subclass, 426230294554Sphitran node_path, DI_NODE_NIL, driver_name, instance, minor_name); 42637c478bd9Sstevel@tonic-gate 42647c478bd9Sstevel@tonic-gate (void) strcpy(path, node_path); 42657c478bd9Sstevel@tonic-gate (void) strcat(path, ":"); 42667c478bd9Sstevel@tonic-gate (void) strcat(path, minor_name == NULL ? "" : minor_name); 42677c478bd9Sstevel@tonic-gate 42687c478bd9Sstevel@tonic-gate path_len = strlen(path); 42697c478bd9Sstevel@tonic-gate 42707c478bd9Sstevel@tonic-gate vprint(REMOVE_MID, "%spath=%s\n", fcn, path); 42717c478bd9Sstevel@tonic-gate 4272aa646b9dSvikram (void) mutex_lock(&nfp_mutex); 4273aa646b9dSvikram nfphash_create(); 4274aa646b9dSvikram 42757c478bd9Sstevel@tonic-gate for (rm = remove_head; rm != NULL; rm = rm->next) { 42767c478bd9Sstevel@tonic-gate if ((RM_HOT & rm->remove->flags) == RM_HOT) { 42777c478bd9Sstevel@tonic-gate head = get_cached_links(rm->remove->dev_dirs_re); 42787c478bd9Sstevel@tonic-gate assert(head->nextlink == NULL); 42797c478bd9Sstevel@tonic-gate for (link = head->link; 42807c478bd9Sstevel@tonic-gate link != NULL; link = head->nextlink) { 42817c478bd9Sstevel@tonic-gate /* 42827c478bd9Sstevel@tonic-gate * The remove callback below may remove 42837c478bd9Sstevel@tonic-gate * the current and/or any or all of the 42847c478bd9Sstevel@tonic-gate * subsequent links in the list. 42857c478bd9Sstevel@tonic-gate * Save the next link in the head. If 42867c478bd9Sstevel@tonic-gate * the callback removes the next link 42877c478bd9Sstevel@tonic-gate * the saved pointer in the head will be 42887c478bd9Sstevel@tonic-gate * updated by the callback to point at 42897c478bd9Sstevel@tonic-gate * the next valid link. 42907c478bd9Sstevel@tonic-gate */ 42917c478bd9Sstevel@tonic-gate head->nextlink = link->next; 4292aa646b9dSvikram 4293aa646b9dSvikram /* 4294aa646b9dSvikram * if devlink is in no-further-process hash, 4295aa646b9dSvikram * skip its remove 4296aa646b9dSvikram */ 4297aa646b9dSvikram if (nfphash_lookup(link->devlink) != NULL) 4298aa646b9dSvikram continue; 4299aa646b9dSvikram 4300fb9251a6Scth if (minor_name) 4301fb9251a6Scth skip = strcmp(link->contents, path); 4302fb9251a6Scth else 4303fb9251a6Scth skip = strncmp(link->contents, path, 4304fb9251a6Scth path_len); 4305fb9251a6Scth if (skip || 4306fb9251a6Scth (call_minor_init(rm->modptr) == 4307fb9251a6Scth DEVFSADM_FAILURE)) 4308fb9251a6Scth continue; 43097c478bd9Sstevel@tonic-gate 4310fb9251a6Scth vprint(REMOVE_MID, 43110a653502Swroche "%sremoving %s -> %s\n", fcn, 43120a653502Swroche link->devlink, link->contents); 4313fb9251a6Scth /* 4314fb9251a6Scth * Use a copy of the cached link name 4315fb9251a6Scth * as the cache entry will go away 4316fb9251a6Scth * during link removal 4317fb9251a6Scth */ 4318fb9251a6Scth (void) snprintf(rmlink, sizeof (rmlink), 4319fb9251a6Scth "%s", link->devlink); 4320aa646b9dSvikram if (rm->remove->flags & RM_NOINTERPOSE) { 4321cb2bfa20SToomas Soome (void) 4322cb2bfa20SToomas Soome (rm->remove->callback_fcn)(rmlink); 4323aa646b9dSvikram } else { 4324cb2bfa20SToomas Soome ret = 4325cb2bfa20SToomas Soome (rm->remove->callback_fcn)(rmlink); 4326aa646b9dSvikram if (ret == DEVFSADM_TERMINATE) 4327aa646b9dSvikram nfphash_insert(rmlink); 4328aa646b9dSvikram } 43297c478bd9Sstevel@tonic-gate } 43307c478bd9Sstevel@tonic-gate } 43317c478bd9Sstevel@tonic-gate } 43327c478bd9Sstevel@tonic-gate 4333aa646b9dSvikram nfphash_destroy(); 4334aa646b9dSvikram (void) mutex_unlock(&nfp_mutex); 4335aa646b9dSvikram 433645916cd2Sjpk /* update device allocation database */ 433745916cd2Sjpk if (system_labeled) { 433845916cd2Sjpk int devtype = 0; 433945916cd2Sjpk 43407e3e5701SJan Parcel if (strstr(path, DA_SOUND_NAME)) 434145916cd2Sjpk devtype = DA_AUDIO; 43427e3e5701SJan Parcel else if (strstr(path, "storage")) 43437e3e5701SJan Parcel devtype = DA_RMDISK; 43447e3e5701SJan Parcel else if (strstr(path, "disk")) 43457e3e5701SJan Parcel devtype = DA_RMDISK; 43467e3e5701SJan Parcel else if (strstr(path, "floppy")) 43477e3e5701SJan Parcel /* TODO: detect usb cds and floppies at insert time */ 434845916cd2Sjpk devtype = DA_RMDISK; 434945916cd2Sjpk else 435045916cd2Sjpk goto out; 43517e3e5701SJan Parcel 43527e3e5701SJan Parcel (void) _update_devalloc_db(&devlist, devtype, DA_REMOVE, 43537e3e5701SJan Parcel node_path, root_dir); 435445916cd2Sjpk } 435545916cd2Sjpk 435645916cd2Sjpk out: 43577c478bd9Sstevel@tonic-gate /* now log an event */ 43587c478bd9Sstevel@tonic-gate if (nvl) { 43597c478bd9Sstevel@tonic-gate log_event(EC_DEV_REMOVE, ev_subclass, nvl); 43607c478bd9Sstevel@tonic-gate free(nvl); 43617c478bd9Sstevel@tonic-gate } 43627c478bd9Sstevel@tonic-gate } 43637c478bd9Sstevel@tonic-gate 43647c478bd9Sstevel@tonic-gate /* 43657c478bd9Sstevel@tonic-gate * Open the dir current_dir. For every file which matches the first dir 43667c478bd9Sstevel@tonic-gate * component of path_re, recurse. If there are no more *dir* path 43677c478bd9Sstevel@tonic-gate * components left in path_re (ie no more /), then call function rd->fcn. 43687c478bd9Sstevel@tonic-gate */ 43697c478bd9Sstevel@tonic-gate static void 43707c478bd9Sstevel@tonic-gate recurse_dev_re(char *current_dir, char *path_re, recurse_dev_t *rd) 43717c478bd9Sstevel@tonic-gate { 43727c478bd9Sstevel@tonic-gate regex_t re1; 43737c478bd9Sstevel@tonic-gate char *slash; 43747c478bd9Sstevel@tonic-gate char new_path[PATH_MAX + 1]; 43757c478bd9Sstevel@tonic-gate char *anchored_path_re; 43767c478bd9Sstevel@tonic-gate size_t len; 437773de625bSjg finddevhdl_t fhandle; 437873de625bSjg const char *fp; 43797c478bd9Sstevel@tonic-gate 43807c478bd9Sstevel@tonic-gate vprint(RECURSEDEV_MID, "recurse_dev_re: curr = %s path=%s\n", 43810a653502Swroche current_dir, path_re); 43827c478bd9Sstevel@tonic-gate 438373de625bSjg if (finddev_readdir(current_dir, &fhandle) != 0) 43847c478bd9Sstevel@tonic-gate return; 43857c478bd9Sstevel@tonic-gate 43867c478bd9Sstevel@tonic-gate len = strlen(path_re); 43877c478bd9Sstevel@tonic-gate if ((slash = strchr(path_re, '/')) != NULL) { 43887c478bd9Sstevel@tonic-gate len = (slash - path_re); 43897c478bd9Sstevel@tonic-gate } 43907c478bd9Sstevel@tonic-gate 43917c478bd9Sstevel@tonic-gate anchored_path_re = s_malloc(len + 3); 43927c478bd9Sstevel@tonic-gate (void) sprintf(anchored_path_re, "^%.*s$", len, path_re); 43937c478bd9Sstevel@tonic-gate 43947c478bd9Sstevel@tonic-gate if (regcomp(&re1, anchored_path_re, REG_EXTENDED) != 0) { 43957c478bd9Sstevel@tonic-gate free(anchored_path_re); 43967c478bd9Sstevel@tonic-gate goto out; 43977c478bd9Sstevel@tonic-gate } 43987c478bd9Sstevel@tonic-gate 43997c478bd9Sstevel@tonic-gate free(anchored_path_re); 44007c478bd9Sstevel@tonic-gate 440173de625bSjg while ((fp = finddev_next(fhandle)) != NULL) { 44027c478bd9Sstevel@tonic-gate 440373de625bSjg if (regexec(&re1, fp, 0, NULL, 0) == 0) { 44047c478bd9Sstevel@tonic-gate /* match */ 44057c478bd9Sstevel@tonic-gate (void) strcpy(new_path, current_dir); 44067c478bd9Sstevel@tonic-gate (void) strcat(new_path, "/"); 440773de625bSjg (void) strcat(new_path, fp); 44087c478bd9Sstevel@tonic-gate 44097c478bd9Sstevel@tonic-gate vprint(RECURSEDEV_MID, "recurse_dev_re: match, new " 44100a653502Swroche "path = %s\n", new_path); 44117c478bd9Sstevel@tonic-gate 44127c478bd9Sstevel@tonic-gate if (slash != NULL) { 44137c478bd9Sstevel@tonic-gate recurse_dev_re(new_path, slash + 1, rd); 44147c478bd9Sstevel@tonic-gate } else { 44157c478bd9Sstevel@tonic-gate /* reached the leaf component of path_re */ 44167c478bd9Sstevel@tonic-gate vprint(RECURSEDEV_MID, 44170a653502Swroche "recurse_dev_re: calling fcn\n"); 44187c478bd9Sstevel@tonic-gate (*(rd->fcn))(new_path, rd->data); 44197c478bd9Sstevel@tonic-gate } 44207c478bd9Sstevel@tonic-gate } 44217c478bd9Sstevel@tonic-gate } 44227c478bd9Sstevel@tonic-gate 44237c478bd9Sstevel@tonic-gate regfree(&re1); 44247c478bd9Sstevel@tonic-gate 44257c478bd9Sstevel@tonic-gate out: 442673de625bSjg finddev_close(fhandle); 44277c478bd9Sstevel@tonic-gate } 44287c478bd9Sstevel@tonic-gate 44297c478bd9Sstevel@tonic-gate /* 44307c478bd9Sstevel@tonic-gate * Found a devpath which matches a RE in the remove structure. 44317c478bd9Sstevel@tonic-gate * Now check to see if it is dangling. 44327c478bd9Sstevel@tonic-gate */ 44337c478bd9Sstevel@tonic-gate static void 44347c478bd9Sstevel@tonic-gate matching_dev(char *devpath, void *data) 44357c478bd9Sstevel@tonic-gate { 44367c478bd9Sstevel@tonic-gate cleanup_data_t *cleanup_data = data; 4437aa646b9dSvikram int norm_len = strlen(dev_dir) + strlen("/"); 4438aa646b9dSvikram int ret; 44397c478bd9Sstevel@tonic-gate char *fcn = "matching_dev: "; 44407c478bd9Sstevel@tonic-gate 44417c478bd9Sstevel@tonic-gate vprint(RECURSEDEV_MID, "%sexamining devpath = '%s'\n", fcn, 44420a653502Swroche devpath); 44437c478bd9Sstevel@tonic-gate 4444aa646b9dSvikram /* 4445aa646b9dSvikram * If the link is in the no-further-process hash 4446aa646b9dSvikram * don't do any remove operation on it. 4447aa646b9dSvikram */ 4448aa646b9dSvikram if (nfphash_lookup(devpath + norm_len) != NULL) 4449aa646b9dSvikram return; 4450aa646b9dSvikram 445194c894bbSVikram Hegde /* 445294c894bbSVikram Hegde * Dangling check will work whether "alias" or "current" 445394c894bbSVikram Hegde * so no need to redirect. 445494c894bbSVikram Hegde */ 44557c478bd9Sstevel@tonic-gate if (resolve_link(devpath, NULL, NULL, NULL, 1) == TRUE) { 44567c478bd9Sstevel@tonic-gate if (call_minor_init(cleanup_data->rm->modptr) == 44570a653502Swroche DEVFSADM_FAILURE) { 44587c478bd9Sstevel@tonic-gate return; 44597c478bd9Sstevel@tonic-gate } 44607c478bd9Sstevel@tonic-gate 4461aa646b9dSvikram devpath += norm_len; 44627c478bd9Sstevel@tonic-gate 44630a653502Swroche vprint(RECURSEDEV_MID, "%scalling callback %s\n", fcn, devpath); 4464aa646b9dSvikram if (cleanup_data->rm->remove->flags & RM_NOINTERPOSE) 4465cb2bfa20SToomas Soome (void) 4466cb2bfa20SToomas Soome (cleanup_data->rm->remove->callback_fcn)(devpath); 4467aa646b9dSvikram else { 4468cb2bfa20SToomas Soome ret = 4469cb2bfa20SToomas Soome (cleanup_data->rm->remove->callback_fcn)(devpath); 4470aa646b9dSvikram if (ret == DEVFSADM_TERMINATE) { 4471aa646b9dSvikram /* 4472aa646b9dSvikram * We want no further remove processing for 4473aa646b9dSvikram * this link. Add it to the nfp_hash; 4474aa646b9dSvikram */ 4475aa646b9dSvikram nfphash_insert(devpath); 4476aa646b9dSvikram } 4477aa646b9dSvikram } 44787c478bd9Sstevel@tonic-gate } 44797c478bd9Sstevel@tonic-gate } 44807c478bd9Sstevel@tonic-gate 44817c478bd9Sstevel@tonic-gate int 448294c894bbSVikram Hegde devfsadm_read_link(di_node_t anynode, char *link, char **devfs_path) 44837c478bd9Sstevel@tonic-gate { 44847c478bd9Sstevel@tonic-gate char devlink[PATH_MAX]; 448594c894bbSVikram Hegde char *path; 44867c478bd9Sstevel@tonic-gate 44877c478bd9Sstevel@tonic-gate *devfs_path = NULL; 44887c478bd9Sstevel@tonic-gate 44897c478bd9Sstevel@tonic-gate /* prepend link with dev_dir contents */ 44907c478bd9Sstevel@tonic-gate (void) strcpy(devlink, dev_dir); 44917c478bd9Sstevel@tonic-gate (void) strcat(devlink, "/"); 44927c478bd9Sstevel@tonic-gate (void) strcat(devlink, link); 44937c478bd9Sstevel@tonic-gate 44947c478bd9Sstevel@tonic-gate /* We *don't* want a stat of the /devices node */ 449594c894bbSVikram Hegde path = NULL; 449694c894bbSVikram Hegde (void) resolve_link(devlink, NULL, NULL, &path, 0); 44976c70e1f8SJerry Gilliam if (path != NULL) { 44986c70e1f8SJerry Gilliam /* redirect if alias to current */ 44996c70e1f8SJerry Gilliam *devfs_path = di_alias2curr(anynode, path); 45006c70e1f8SJerry Gilliam free(path); 45016c70e1f8SJerry Gilliam } 45027c478bd9Sstevel@tonic-gate return (*devfs_path ? DEVFSADM_SUCCESS : DEVFSADM_FAILURE); 45037c478bd9Sstevel@tonic-gate } 45047c478bd9Sstevel@tonic-gate 45057c478bd9Sstevel@tonic-gate int 450694c894bbSVikram Hegde devfsadm_link_valid(di_node_t anynode, char *link) 45077c478bd9Sstevel@tonic-gate { 45087c478bd9Sstevel@tonic-gate struct stat sb; 450994c894bbSVikram Hegde char devlink[PATH_MAX + 1], *contents, *raw_contents; 45107c478bd9Sstevel@tonic-gate int rv, type; 451145916cd2Sjpk int instance = 0; 45127c478bd9Sstevel@tonic-gate 45137c478bd9Sstevel@tonic-gate /* prepend link with dev_dir contents */ 45147c478bd9Sstevel@tonic-gate (void) strcpy(devlink, dev_dir); 45157c478bd9Sstevel@tonic-gate (void) strcat(devlink, "/"); 45167c478bd9Sstevel@tonic-gate (void) strcat(devlink, link); 45177c478bd9Sstevel@tonic-gate 4518facf4a8dSllai if (!device_exists(devlink) || lstat(devlink, &sb) != 0) { 45197c478bd9Sstevel@tonic-gate return (DEVFSADM_FALSE); 45207c478bd9Sstevel@tonic-gate } 45217c478bd9Sstevel@tonic-gate 452294c894bbSVikram Hegde raw_contents = NULL; 45237c478bd9Sstevel@tonic-gate type = 0; 452494c894bbSVikram Hegde if (resolve_link(devlink, &raw_contents, &type, NULL, 1) == TRUE) { 45257c478bd9Sstevel@tonic-gate rv = DEVFSADM_FALSE; 45267c478bd9Sstevel@tonic-gate } else { 45277c478bd9Sstevel@tonic-gate rv = DEVFSADM_TRUE; 45287c478bd9Sstevel@tonic-gate } 45297c478bd9Sstevel@tonic-gate 453094c894bbSVikram Hegde /* 453194c894bbSVikram Hegde * resolve alias paths for primary links 453294c894bbSVikram Hegde */ 453394c894bbSVikram Hegde contents = raw_contents; 453494c894bbSVikram Hegde if (type == DI_PRIMARY_LINK) { 453594c894bbSVikram Hegde contents = di_alias2curr(anynode, raw_contents); 453694c894bbSVikram Hegde free(raw_contents); 453794c894bbSVikram Hegde } 453894c894bbSVikram Hegde 45397c478bd9Sstevel@tonic-gate /* 45407c478bd9Sstevel@tonic-gate * The link exists. Add it to the database 45417c478bd9Sstevel@tonic-gate */ 45427c478bd9Sstevel@tonic-gate (void) di_devlink_add_link(devlink_cache, link, contents, type); 454345916cd2Sjpk if (system_labeled && (rv == DEVFSADM_TRUE) && 454445916cd2Sjpk strstr(devlink, DA_AUDIO_NAME) && contents) { 454545916cd2Sjpk (void) sscanf(contents, "%*[a-z]%d", &instance); 454645916cd2Sjpk (void) da_add_list(&devlist, devlink, instance, 454745916cd2Sjpk DA_ADD|DA_AUDIO); 454845916cd2Sjpk _update_devalloc_db(&devlist, 0, DA_ADD, NULL, root_dir); 454945916cd2Sjpk } 45507c478bd9Sstevel@tonic-gate free(contents); 45517c478bd9Sstevel@tonic-gate 45527c478bd9Sstevel@tonic-gate return (rv); 45537c478bd9Sstevel@tonic-gate } 45547c478bd9Sstevel@tonic-gate 45557c478bd9Sstevel@tonic-gate /* 45567c478bd9Sstevel@tonic-gate * devpath: Absolute path to /dev link 45577c478bd9Sstevel@tonic-gate * content_p: Returns malloced string (link content) 45587c478bd9Sstevel@tonic-gate * type_p: Returns link type: primary or secondary 45597c478bd9Sstevel@tonic-gate * devfs_path: Returns malloced string: /devices path w/out "/devices" 45607c478bd9Sstevel@tonic-gate * dangle: if set, check if link is dangling 45617c478bd9Sstevel@tonic-gate * Returns: 45627c478bd9Sstevel@tonic-gate * TRUE if dangling 45637c478bd9Sstevel@tonic-gate * FALSE if not or if caller doesn't care 45647c478bd9Sstevel@tonic-gate * Caller is assumed to have initialized pointer contents to NULL 456594c894bbSVikram Hegde * 45667c478bd9Sstevel@tonic-gate */ 45677c478bd9Sstevel@tonic-gate static int 45687c478bd9Sstevel@tonic-gate resolve_link(char *devpath, char **content_p, int *type_p, char **devfs_path, 45697c478bd9Sstevel@tonic-gate int dangle) 45707c478bd9Sstevel@tonic-gate { 45717c478bd9Sstevel@tonic-gate char contents[PATH_MAX + 1]; 45727c478bd9Sstevel@tonic-gate char stage_link[PATH_MAX + 1]; 45737c478bd9Sstevel@tonic-gate char *fcn = "resolve_link: "; 45747c478bd9Sstevel@tonic-gate char *ptr; 45757c478bd9Sstevel@tonic-gate int linksize; 45767c478bd9Sstevel@tonic-gate int rv = TRUE; 45777c478bd9Sstevel@tonic-gate struct stat sb; 45787c478bd9Sstevel@tonic-gate 457994c894bbSVikram Hegde /* 458094c894bbSVikram Hegde * This routine will return the "raw" contents. It is upto the 458194c894bbSVikram Hegde * the caller to redirect "alias" to "current" (or vice versa) 458294c894bbSVikram Hegde */ 45837c478bd9Sstevel@tonic-gate linksize = readlink(devpath, contents, PATH_MAX); 45847c478bd9Sstevel@tonic-gate 45857c478bd9Sstevel@tonic-gate if (linksize <= 0) { 45867c478bd9Sstevel@tonic-gate return (FALSE); 45877c478bd9Sstevel@tonic-gate } else { 45887c478bd9Sstevel@tonic-gate contents[linksize] = '\0'; 45897c478bd9Sstevel@tonic-gate } 45907c478bd9Sstevel@tonic-gate vprint(REMOVE_MID, "%s %s -> %s\n", fcn, devpath, contents); 45917c478bd9Sstevel@tonic-gate 45927c478bd9Sstevel@tonic-gate if (content_p) { 45937c478bd9Sstevel@tonic-gate *content_p = s_strdup(contents); 45947c478bd9Sstevel@tonic-gate } 45957c478bd9Sstevel@tonic-gate 45967c478bd9Sstevel@tonic-gate /* 45977c478bd9Sstevel@tonic-gate * Check to see if this is a link pointing to another link in /dev. The 45987c478bd9Sstevel@tonic-gate * cheap way to do this is to look for a lack of ../devices/. 45997c478bd9Sstevel@tonic-gate */ 46007c478bd9Sstevel@tonic-gate 46017c478bd9Sstevel@tonic-gate if (is_minor_node(contents, &ptr) == DEVFSADM_FALSE) { 46027c478bd9Sstevel@tonic-gate 46037c478bd9Sstevel@tonic-gate if (type_p) { 46047c478bd9Sstevel@tonic-gate *type_p = DI_SECONDARY_LINK; 46057c478bd9Sstevel@tonic-gate } 46067c478bd9Sstevel@tonic-gate 46077c478bd9Sstevel@tonic-gate /* 46087c478bd9Sstevel@tonic-gate * assume that linkcontents is really a pointer to another 46097c478bd9Sstevel@tonic-gate * link, and if so recurse and read its link contents. 46107c478bd9Sstevel@tonic-gate */ 46117c478bd9Sstevel@tonic-gate if (strncmp(contents, DEV "/", strlen(DEV) + 1) == 0) { 46127c478bd9Sstevel@tonic-gate (void) strcpy(stage_link, dev_dir); 46137c478bd9Sstevel@tonic-gate (void) strcat(stage_link, "/"); 46147c478bd9Sstevel@tonic-gate (void) strcpy(stage_link, 46150a653502Swroche &contents[strlen(DEV) + strlen("/")]); 46167c478bd9Sstevel@tonic-gate } else { 46177c478bd9Sstevel@tonic-gate if ((ptr = strrchr(devpath, '/')) == NULL) { 46187c478bd9Sstevel@tonic-gate vprint(REMOVE_MID, "%s%s -> %s invalid link. " 46190a653502Swroche "missing '/'\n", fcn, devpath, contents); 46207c478bd9Sstevel@tonic-gate return (TRUE); 46217c478bd9Sstevel@tonic-gate } 46227c478bd9Sstevel@tonic-gate *ptr = '\0'; 46237c478bd9Sstevel@tonic-gate (void) strcpy(stage_link, devpath); 46247c478bd9Sstevel@tonic-gate *ptr = '/'; 46257c478bd9Sstevel@tonic-gate (void) strcat(stage_link, "/"); 46267c478bd9Sstevel@tonic-gate (void) strcat(stage_link, contents); 46277c478bd9Sstevel@tonic-gate } 46287c478bd9Sstevel@tonic-gate return (resolve_link(stage_link, NULL, NULL, devfs_path, 46297c478bd9Sstevel@tonic-gate dangle)); 46307c478bd9Sstevel@tonic-gate } 46317c478bd9Sstevel@tonic-gate 46327c478bd9Sstevel@tonic-gate /* Current link points at a /devices minor node */ 46337c478bd9Sstevel@tonic-gate if (type_p) { 46347c478bd9Sstevel@tonic-gate *type_p = DI_PRIMARY_LINK; 46357c478bd9Sstevel@tonic-gate } 46367c478bd9Sstevel@tonic-gate 46377c478bd9Sstevel@tonic-gate if (devfs_path) 46387c478bd9Sstevel@tonic-gate *devfs_path = s_strdup(ptr); 46397c478bd9Sstevel@tonic-gate 46407c478bd9Sstevel@tonic-gate rv = FALSE; 46417c478bd9Sstevel@tonic-gate if (dangle) 46427c478bd9Sstevel@tonic-gate rv = (stat(ptr - strlen(DEVICES), &sb) == -1); 46437c478bd9Sstevel@tonic-gate 46447c478bd9Sstevel@tonic-gate vprint(REMOVE_MID, "%slink=%s, returning %s\n", fcn, 46450a653502Swroche devpath, ((rv == TRUE) ? "TRUE" : "FALSE")); 46467c478bd9Sstevel@tonic-gate 46477c478bd9Sstevel@tonic-gate return (rv); 46487c478bd9Sstevel@tonic-gate } 46497c478bd9Sstevel@tonic-gate 46507c478bd9Sstevel@tonic-gate /* 46517c478bd9Sstevel@tonic-gate * Returns the substring of interest, given a path. 46527c478bd9Sstevel@tonic-gate */ 46537c478bd9Sstevel@tonic-gate static char * 46547c478bd9Sstevel@tonic-gate alloc_cmp_str(const char *path, devfsadm_enumerate_t *dep) 46557c478bd9Sstevel@tonic-gate { 46567c478bd9Sstevel@tonic-gate uint_t match; 46577c478bd9Sstevel@tonic-gate char *np, *ap, *mp; 46587c478bd9Sstevel@tonic-gate char *cmp_str = NULL; 46597c478bd9Sstevel@tonic-gate char at[] = "@"; 46607c478bd9Sstevel@tonic-gate char *fcn = "alloc_cmp_str"; 46617c478bd9Sstevel@tonic-gate 46627c478bd9Sstevel@tonic-gate np = ap = mp = NULL; 46637c478bd9Sstevel@tonic-gate 46647c478bd9Sstevel@tonic-gate /* 46657c478bd9Sstevel@tonic-gate * extract match flags from the flags argument. 46667c478bd9Sstevel@tonic-gate */ 46677c478bd9Sstevel@tonic-gate match = (dep->flags & MATCH_MASK); 46687c478bd9Sstevel@tonic-gate 46697c478bd9Sstevel@tonic-gate vprint(ENUM_MID, "%s: enumeration match type: 0x%x" 46707c478bd9Sstevel@tonic-gate " path: %s\n", fcn, match, path); 46717c478bd9Sstevel@tonic-gate 46727c478bd9Sstevel@tonic-gate /* 46737c478bd9Sstevel@tonic-gate * MATCH_CALLBACK and MATCH_ALL are the only flags 46747c478bd9Sstevel@tonic-gate * which may be used if "path" is a /dev path 46757c478bd9Sstevel@tonic-gate */ 46767c478bd9Sstevel@tonic-gate if (match == MATCH_CALLBACK) { 46777c478bd9Sstevel@tonic-gate if (dep->sel_fcn == NULL) { 46787c478bd9Sstevel@tonic-gate vprint(ENUM_MID, "%s: invalid enumerate" 46797c478bd9Sstevel@tonic-gate " callback: path: %s\n", fcn, path); 46807c478bd9Sstevel@tonic-gate return (NULL); 46817c478bd9Sstevel@tonic-gate } 46827c478bd9Sstevel@tonic-gate cmp_str = dep->sel_fcn(path, dep->cb_arg); 46837c478bd9Sstevel@tonic-gate return (cmp_str); 46847c478bd9Sstevel@tonic-gate } 46857c478bd9Sstevel@tonic-gate 46867c478bd9Sstevel@tonic-gate cmp_str = s_strdup(path); 46877c478bd9Sstevel@tonic-gate 46887c478bd9Sstevel@tonic-gate if (match == MATCH_ALL) { 46897c478bd9Sstevel@tonic-gate return (cmp_str); 46907c478bd9Sstevel@tonic-gate } 46917c478bd9Sstevel@tonic-gate 46927c478bd9Sstevel@tonic-gate /* 46937c478bd9Sstevel@tonic-gate * The remaining flags make sense only for /devices 46947c478bd9Sstevel@tonic-gate * paths 46957c478bd9Sstevel@tonic-gate */ 46967c478bd9Sstevel@tonic-gate if ((mp = strrchr(cmp_str, ':')) == NULL) { 46977c478bd9Sstevel@tonic-gate vprint(ENUM_MID, "%s: invalid path: %s\n", 46987c478bd9Sstevel@tonic-gate fcn, path); 46997c478bd9Sstevel@tonic-gate goto err; 47007c478bd9Sstevel@tonic-gate } 47017c478bd9Sstevel@tonic-gate 47027c478bd9Sstevel@tonic-gate if (match == MATCH_MINOR) { 47037c478bd9Sstevel@tonic-gate /* A NULL "match_arg" values implies entire minor */ 47047c478bd9Sstevel@tonic-gate if (get_component(mp + 1, dep->match_arg) == NULL) { 47057c478bd9Sstevel@tonic-gate vprint(ENUM_MID, "%s: invalid minor component:" 47067c478bd9Sstevel@tonic-gate " path: %s\n", fcn, path); 47077c478bd9Sstevel@tonic-gate goto err; 47087c478bd9Sstevel@tonic-gate } 47097c478bd9Sstevel@tonic-gate return (cmp_str); 47107c478bd9Sstevel@tonic-gate } 47117c478bd9Sstevel@tonic-gate 47127c478bd9Sstevel@tonic-gate if ((np = strrchr(cmp_str, '/')) == NULL) { 47137c478bd9Sstevel@tonic-gate vprint(ENUM_MID, "%s: invalid path: %s\n", fcn, path); 47147c478bd9Sstevel@tonic-gate goto err; 47157c478bd9Sstevel@tonic-gate } 47167c478bd9Sstevel@tonic-gate 47177c478bd9Sstevel@tonic-gate if (match == MATCH_PARENT) { 47187c478bd9Sstevel@tonic-gate if (strcmp(cmp_str, "/") == 0) { 47197c478bd9Sstevel@tonic-gate vprint(ENUM_MID, "%s: invalid path: %s\n", 47207c478bd9Sstevel@tonic-gate fcn, path); 47217c478bd9Sstevel@tonic-gate goto err; 47227c478bd9Sstevel@tonic-gate } 47237c478bd9Sstevel@tonic-gate 47247c478bd9Sstevel@tonic-gate if (np == cmp_str) { 47257c478bd9Sstevel@tonic-gate *(np + 1) = '\0'; 47267c478bd9Sstevel@tonic-gate } else { 47277c478bd9Sstevel@tonic-gate *np = '\0'; 47287c478bd9Sstevel@tonic-gate } 47297c478bd9Sstevel@tonic-gate return (cmp_str); 47307c478bd9Sstevel@tonic-gate } 47317c478bd9Sstevel@tonic-gate 47327c478bd9Sstevel@tonic-gate /* ap can be NULL - Leaf address may not exist or be empty string */ 47337c478bd9Sstevel@tonic-gate ap = strchr(np+1, '@'); 47347c478bd9Sstevel@tonic-gate 47357c478bd9Sstevel@tonic-gate /* minor is no longer of interest */ 47367c478bd9Sstevel@tonic-gate *mp = '\0'; 47377c478bd9Sstevel@tonic-gate 47387c478bd9Sstevel@tonic-gate if (match == MATCH_NODE) { 47397c478bd9Sstevel@tonic-gate if (ap) 47407c478bd9Sstevel@tonic-gate *ap = '\0'; 47417c478bd9Sstevel@tonic-gate return (cmp_str); 47427c478bd9Sstevel@tonic-gate } else if (match == MATCH_ADDR) { 47437c478bd9Sstevel@tonic-gate /* 47447c478bd9Sstevel@tonic-gate * The empty string is a valid address. The only MATCH_ADDR 47457c478bd9Sstevel@tonic-gate * allowed in this case is against the whole address or 47467c478bd9Sstevel@tonic-gate * the first component of the address (match_arg=NULL/"0"/"1") 47477c478bd9Sstevel@tonic-gate * Note that in this case, the path won't have an "@" 47487c478bd9Sstevel@tonic-gate * As a result ap will be NULL. We fake up an ap = @'\0' 47497c478bd9Sstevel@tonic-gate * so that get_component() will work correctly. 47507c478bd9Sstevel@tonic-gate */ 47517c478bd9Sstevel@tonic-gate if (ap == NULL) { 47527c478bd9Sstevel@tonic-gate ap = at; 47537c478bd9Sstevel@tonic-gate } 47547c478bd9Sstevel@tonic-gate 47557c478bd9Sstevel@tonic-gate if (get_component(ap + 1, dep->match_arg) == NULL) { 47567c478bd9Sstevel@tonic-gate vprint(ENUM_MID, "%s: invalid leaf addr. component:" 47577c478bd9Sstevel@tonic-gate " path: %s\n", fcn, path); 47587c478bd9Sstevel@tonic-gate goto err; 47597c478bd9Sstevel@tonic-gate } 47607c478bd9Sstevel@tonic-gate return (cmp_str); 47617c478bd9Sstevel@tonic-gate } 47627c478bd9Sstevel@tonic-gate 47637c478bd9Sstevel@tonic-gate vprint(ENUM_MID, "%s: invalid enumeration flags: 0x%x" 47640a653502Swroche " path: %s\n", fcn, dep->flags, path); 47657c478bd9Sstevel@tonic-gate 47667c478bd9Sstevel@tonic-gate /*FALLTHRU*/ 47677c478bd9Sstevel@tonic-gate err: 47687c478bd9Sstevel@tonic-gate free(cmp_str); 47697c478bd9Sstevel@tonic-gate return (NULL); 47707c478bd9Sstevel@tonic-gate } 47717c478bd9Sstevel@tonic-gate 47727c478bd9Sstevel@tonic-gate 47737c478bd9Sstevel@tonic-gate /* 47747c478bd9Sstevel@tonic-gate * "str" is expected to be a string with components separated by ',' 47757c478bd9Sstevel@tonic-gate * The terminating null char is considered a separator. 47767c478bd9Sstevel@tonic-gate * get_component() will remove the portion of the string beyond 47777c478bd9Sstevel@tonic-gate * the component indicated. 47787c478bd9Sstevel@tonic-gate * If comp_str is NULL, the entire "str" is returned. 47797c478bd9Sstevel@tonic-gate */ 47807c478bd9Sstevel@tonic-gate static char * 47817c478bd9Sstevel@tonic-gate get_component(char *str, const char *comp_str) 47827c478bd9Sstevel@tonic-gate { 47837c478bd9Sstevel@tonic-gate long comp; 47847c478bd9Sstevel@tonic-gate char *cp; 47857c478bd9Sstevel@tonic-gate 47867c478bd9Sstevel@tonic-gate if (str == NULL) { 47877c478bd9Sstevel@tonic-gate return (NULL); 47887c478bd9Sstevel@tonic-gate } 47897c478bd9Sstevel@tonic-gate 47907c478bd9Sstevel@tonic-gate if (comp_str == NULL) { 47917c478bd9Sstevel@tonic-gate return (str); 47927c478bd9Sstevel@tonic-gate } 47937c478bd9Sstevel@tonic-gate 47947c478bd9Sstevel@tonic-gate errno = 0; 47957c478bd9Sstevel@tonic-gate comp = strtol(comp_str, &cp, 10); 47967c478bd9Sstevel@tonic-gate if (errno != 0 || *cp != '\0' || comp < 0) { 47977c478bd9Sstevel@tonic-gate return (NULL); 47987c478bd9Sstevel@tonic-gate } 47997c478bd9Sstevel@tonic-gate 48007c478bd9Sstevel@tonic-gate if (comp == 0) 48017c478bd9Sstevel@tonic-gate return (str); 48027c478bd9Sstevel@tonic-gate 48037c478bd9Sstevel@tonic-gate for (cp = str; ; cp++) { 48047c478bd9Sstevel@tonic-gate if (*cp == ',' || *cp == '\0') 48057c478bd9Sstevel@tonic-gate comp--; 48067c478bd9Sstevel@tonic-gate if (*cp == '\0' || comp <= 0) { 48077c478bd9Sstevel@tonic-gate break; 48087c478bd9Sstevel@tonic-gate } 48097c478bd9Sstevel@tonic-gate } 48107c478bd9Sstevel@tonic-gate 48117c478bd9Sstevel@tonic-gate if (comp == 0) { 48127c478bd9Sstevel@tonic-gate *cp = '\0'; 48137c478bd9Sstevel@tonic-gate } else { 48147c478bd9Sstevel@tonic-gate str = NULL; 48157c478bd9Sstevel@tonic-gate } 48167c478bd9Sstevel@tonic-gate 48177c478bd9Sstevel@tonic-gate return (str); 48187c478bd9Sstevel@tonic-gate } 48197c478bd9Sstevel@tonic-gate 48207c478bd9Sstevel@tonic-gate 48217c478bd9Sstevel@tonic-gate /* 48227c478bd9Sstevel@tonic-gate * Enumerate serves as a generic counter as well as a means to determine 48237c478bd9Sstevel@tonic-gate * logical unit/controller numbers for such items as disk and tape 48247c478bd9Sstevel@tonic-gate * drives. 48257c478bd9Sstevel@tonic-gate * 48267c478bd9Sstevel@tonic-gate * rules[] is an array of devfsadm_enumerate_t structures which defines 48277c478bd9Sstevel@tonic-gate * the enumeration rules to be used for a specified set of links in /dev. 48287c478bd9Sstevel@tonic-gate * The set of links is specified through regular expressions (of the flavor 4829*bbf21555SRichard Lowe * described in regex(7)). These regular expressions are used to determine 48307c478bd9Sstevel@tonic-gate * the set of links in /dev to examine. The last path component in these 48317c478bd9Sstevel@tonic-gate * regular expressions MUST contain a parenthesized subexpression surrounding 48327c478bd9Sstevel@tonic-gate * the RE which is to be considered the enumerating component. The subexp 48337c478bd9Sstevel@tonic-gate * member in a rule is the subexpression number of the enumerating 48347c478bd9Sstevel@tonic-gate * component. Subexpressions in the last path component are numbered starting 48357c478bd9Sstevel@tonic-gate * from 1. 48367c478bd9Sstevel@tonic-gate * 48377c478bd9Sstevel@tonic-gate * A cache of current id assignments is built up from existing symlinks and 48387c478bd9Sstevel@tonic-gate * new assignments use the lowest unused id. Assignments are based on a 48397c478bd9Sstevel@tonic-gate * match of a specified substring of a symlink's contents. If the specified 48407c478bd9Sstevel@tonic-gate * component for the devfs_path argument matches the corresponding substring 48417c478bd9Sstevel@tonic-gate * for a existing symlink's contents, the cached id is returned. Else, a new 48427c478bd9Sstevel@tonic-gate * id is created and returned in *buf. *buf must be freed by the caller. 48437c478bd9Sstevel@tonic-gate * 48447c478bd9Sstevel@tonic-gate * An id assignment may be governed by a combination of rules, each rule 48457c478bd9Sstevel@tonic-gate * applicable to a different subset of links in /dev. For example, controller 48467c478bd9Sstevel@tonic-gate * numbers may be determined by a combination of disk symlinks in /dev/[r]dsk 48477c478bd9Sstevel@tonic-gate * and controller symlinks in /dev/cfg, with the two sets requiring different 48487c478bd9Sstevel@tonic-gate * rules to derive the "substring of interest". In such cases, the rules 48497c478bd9Sstevel@tonic-gate * array will have more than one element. 48507c478bd9Sstevel@tonic-gate */ 48517c478bd9Sstevel@tonic-gate int 48527c478bd9Sstevel@tonic-gate devfsadm_enumerate_int(char *devfs_path, int index, char **buf, 4853406fc510SToomas Soome devfsadm_enumerate_t rules[], int nrules) 48547c478bd9Sstevel@tonic-gate { 48557c478bd9Sstevel@tonic-gate return (find_enum_id(rules, nrules, 48567c478bd9Sstevel@tonic-gate devfs_path, index, "0", INTEGER, buf, 0)); 48577c478bd9Sstevel@tonic-gate } 48587c478bd9Sstevel@tonic-gate 48597c478bd9Sstevel@tonic-gate int 4860540b2cc7SHans Rosenfeld ctrl_enumerate_int(char *devfs_path, int index, char **buf, 4861540b2cc7SHans Rosenfeld devfsadm_enumerate_t rules[], int nrules, int multiple, 4862540b2cc7SHans Rosenfeld boolean_t scsi_vhci) 48637c478bd9Sstevel@tonic-gate { 48647c478bd9Sstevel@tonic-gate return (find_enum_id(rules, nrules, 4865540b2cc7SHans Rosenfeld devfs_path, index, scsi_vhci ? "0" : "1", INTEGER, buf, multiple)); 48667c478bd9Sstevel@tonic-gate } 48677c478bd9Sstevel@tonic-gate 48687c478bd9Sstevel@tonic-gate /* 48697c478bd9Sstevel@tonic-gate * Same as above, but allows a starting value to be specified. 48707c478bd9Sstevel@tonic-gate * Private to devfsadm.... used by devlinks. 48717c478bd9Sstevel@tonic-gate */ 48727c478bd9Sstevel@tonic-gate static int 48737c478bd9Sstevel@tonic-gate devfsadm_enumerate_int_start(char *devfs_path, int index, char **buf, 4874406fc510SToomas Soome devfsadm_enumerate_t rules[], int nrules, char *start) 48757c478bd9Sstevel@tonic-gate { 48767c478bd9Sstevel@tonic-gate return (find_enum_id(rules, nrules, 48777c478bd9Sstevel@tonic-gate devfs_path, index, start, INTEGER, buf, 0)); 48787c478bd9Sstevel@tonic-gate } 48797c478bd9Sstevel@tonic-gate 48807c478bd9Sstevel@tonic-gate /* 48817c478bd9Sstevel@tonic-gate * devfsadm_enumerate_char serves as a generic counter returning 48827c478bd9Sstevel@tonic-gate * a single letter. 48837c478bd9Sstevel@tonic-gate */ 48847c478bd9Sstevel@tonic-gate int 48857c478bd9Sstevel@tonic-gate devfsadm_enumerate_char(char *devfs_path, int index, char **buf, 4886406fc510SToomas Soome devfsadm_enumerate_t rules[], int nrules) 48877c478bd9Sstevel@tonic-gate { 48887c478bd9Sstevel@tonic-gate return (find_enum_id(rules, nrules, 48897c478bd9Sstevel@tonic-gate devfs_path, index, "a", LETTER, buf, 0)); 48907c478bd9Sstevel@tonic-gate } 48917c478bd9Sstevel@tonic-gate 48927c478bd9Sstevel@tonic-gate /* 48937c478bd9Sstevel@tonic-gate * Same as above, but allows a starting char to be specified. 48947c478bd9Sstevel@tonic-gate * Private to devfsadm - used by ports module (port_link.c) 48957c478bd9Sstevel@tonic-gate */ 48967c478bd9Sstevel@tonic-gate int 48977c478bd9Sstevel@tonic-gate devfsadm_enumerate_char_start(char *devfs_path, int index, char **buf, 4898406fc510SToomas Soome devfsadm_enumerate_t rules[], int nrules, char *start) 48997c478bd9Sstevel@tonic-gate { 49007c478bd9Sstevel@tonic-gate return (find_enum_id(rules, nrules, 49017c478bd9Sstevel@tonic-gate devfs_path, index, start, LETTER, buf, 0)); 49027c478bd9Sstevel@tonic-gate } 49037c478bd9Sstevel@tonic-gate 49047c478bd9Sstevel@tonic-gate 49057c478bd9Sstevel@tonic-gate /* 49067c478bd9Sstevel@tonic-gate * For a given numeral_set (see get_cached_set for desc of numeral_set), 49077c478bd9Sstevel@tonic-gate * search all cached entries looking for matches on a specified substring 49087c478bd9Sstevel@tonic-gate * of devfs_path. The substring is derived from devfs_path based on the 49097c478bd9Sstevel@tonic-gate * rule specified by "index". If a match is found on a cached entry, 49107c478bd9Sstevel@tonic-gate * return the enumerated id in buf. Otherwise, create a new id by calling 49117c478bd9Sstevel@tonic-gate * new_id, then cache and return that entry. 49127c478bd9Sstevel@tonic-gate */ 49137c478bd9Sstevel@tonic-gate static int 49147c478bd9Sstevel@tonic-gate find_enum_id(devfsadm_enumerate_t rules[], int nrules, 4915406fc510SToomas Soome char *devfs_path, int index, char *min, int type, char **buf, 4916406fc510SToomas Soome int multiple) 49177c478bd9Sstevel@tonic-gate { 49187c478bd9Sstevel@tonic-gate numeral_t *matchnp; 49197c478bd9Sstevel@tonic-gate numeral_t *numeral; 49207c478bd9Sstevel@tonic-gate int matchcount = 0; 49217c478bd9Sstevel@tonic-gate char *cmp_str; 49227c478bd9Sstevel@tonic-gate char *fcn = "find_enum_id"; 49237c478bd9Sstevel@tonic-gate numeral_set_t *set; 49247c478bd9Sstevel@tonic-gate 49257c478bd9Sstevel@tonic-gate if (rules == NULL) { 49267c478bd9Sstevel@tonic-gate vprint(ENUM_MID, "%s: no rules. path: %s\n", 49277c478bd9Sstevel@tonic-gate fcn, devfs_path ? devfs_path : "<NULL path>"); 49287c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 49297c478bd9Sstevel@tonic-gate } 49307c478bd9Sstevel@tonic-gate 49317c478bd9Sstevel@tonic-gate if (devfs_path == NULL) { 49327c478bd9Sstevel@tonic-gate vprint(ENUM_MID, "%s: NULL path\n", fcn); 49337c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 49347c478bd9Sstevel@tonic-gate } 49357c478bd9Sstevel@tonic-gate 49367c478bd9Sstevel@tonic-gate if (nrules <= 0 || index < 0 || index >= nrules || buf == NULL) { 49377c478bd9Sstevel@tonic-gate vprint(ENUM_MID, "%s: invalid arguments. path: %s\n", 49387c478bd9Sstevel@tonic-gate fcn, devfs_path); 49397c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 49407c478bd9Sstevel@tonic-gate } 49417c478bd9Sstevel@tonic-gate 49427c478bd9Sstevel@tonic-gate *buf = NULL; 49437c478bd9Sstevel@tonic-gate 49447c478bd9Sstevel@tonic-gate 49457c478bd9Sstevel@tonic-gate cmp_str = alloc_cmp_str(devfs_path, &rules[index]); 49467c478bd9Sstevel@tonic-gate if (cmp_str == NULL) { 49477c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 49487c478bd9Sstevel@tonic-gate } 49497c478bd9Sstevel@tonic-gate 49507c478bd9Sstevel@tonic-gate if ((set = get_enum_cache(rules, nrules)) == NULL) { 49517c478bd9Sstevel@tonic-gate free(cmp_str); 49527c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 49537c478bd9Sstevel@tonic-gate } 49547c478bd9Sstevel@tonic-gate 49557c478bd9Sstevel@tonic-gate assert(nrules == set->re_count); 49567c478bd9Sstevel@tonic-gate 49577c478bd9Sstevel@tonic-gate /* 49587c478bd9Sstevel@tonic-gate * Check and see if a matching entry is already cached. 49597c478bd9Sstevel@tonic-gate */ 49607c478bd9Sstevel@tonic-gate matchcount = lookup_enum_cache(set, cmp_str, rules, index, 49617c478bd9Sstevel@tonic-gate &matchnp); 49627c478bd9Sstevel@tonic-gate 49637c478bd9Sstevel@tonic-gate if (matchcount < 0 || matchcount > 1) { 49647c478bd9Sstevel@tonic-gate free(cmp_str); 49657c478bd9Sstevel@tonic-gate if (multiple && matchcount > 1) 49667c478bd9Sstevel@tonic-gate return (DEVFSADM_MULTIPLE); 49677c478bd9Sstevel@tonic-gate else 49687c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 49697c478bd9Sstevel@tonic-gate } 49707c478bd9Sstevel@tonic-gate 49717c478bd9Sstevel@tonic-gate /* if matching entry already cached, return it */ 49727c478bd9Sstevel@tonic-gate if (matchcount == 1) { 49738d483882Smlf /* should never create a link with a reserved ID */ 49748d483882Smlf vprint(ENUM_MID, "%s: 1 match w/ ID: %s\n", fcn, matchnp->id); 49758d483882Smlf assert(matchnp->flags == 0); 49767c478bd9Sstevel@tonic-gate *buf = s_strdup(matchnp->id); 49777c478bd9Sstevel@tonic-gate free(cmp_str); 49787c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 49797c478bd9Sstevel@tonic-gate } 49807c478bd9Sstevel@tonic-gate 49817c478bd9Sstevel@tonic-gate /* 49827c478bd9Sstevel@tonic-gate * no cached entry, initialize a numeral struct 49837c478bd9Sstevel@tonic-gate * by calling new_id() and cache onto the numeral_set 49847c478bd9Sstevel@tonic-gate */ 49857c478bd9Sstevel@tonic-gate numeral = s_malloc(sizeof (numeral_t)); 49867c478bd9Sstevel@tonic-gate numeral->id = new_id(set->headnumeral, type, min); 49877c478bd9Sstevel@tonic-gate numeral->full_path = s_strdup(devfs_path); 49887c478bd9Sstevel@tonic-gate numeral->rule_index = index; 49897c478bd9Sstevel@tonic-gate numeral->cmp_str = cmp_str; 49907c478bd9Sstevel@tonic-gate cmp_str = NULL; 49918d483882Smlf numeral->flags = 0; 49928d483882Smlf vprint(RSRV_MID, "%s: alloc new_id: %s numeral flags = %d\n", 49938d483882Smlf fcn, numeral->id, numeral->flags); 49948d483882Smlf 49957c478bd9Sstevel@tonic-gate 49967c478bd9Sstevel@tonic-gate /* insert to head of list for fast lookups */ 49977c478bd9Sstevel@tonic-gate numeral->next = set->headnumeral; 49987c478bd9Sstevel@tonic-gate set->headnumeral = numeral; 49997c478bd9Sstevel@tonic-gate 50007c478bd9Sstevel@tonic-gate *buf = s_strdup(numeral->id); 50017c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 50027c478bd9Sstevel@tonic-gate } 50037c478bd9Sstevel@tonic-gate 50047c478bd9Sstevel@tonic-gate 50057c478bd9Sstevel@tonic-gate /* 50067c478bd9Sstevel@tonic-gate * Looks up the specified cache for a match with a specified string 50077c478bd9Sstevel@tonic-gate * Returns: 50087c478bd9Sstevel@tonic-gate * -1 : on error. 50097c478bd9Sstevel@tonic-gate * 0/1/2 : Number of matches. 50107c478bd9Sstevel@tonic-gate * Returns the matching element only if there is a single match. 50117c478bd9Sstevel@tonic-gate * If the "uncached" flag is set, derives the "cmp_str" afresh 50127c478bd9Sstevel@tonic-gate * for the match instead of using cached values. 50137c478bd9Sstevel@tonic-gate */ 50147c478bd9Sstevel@tonic-gate static int 50157c478bd9Sstevel@tonic-gate lookup_enum_cache(numeral_set_t *set, char *cmp_str, 5016406fc510SToomas Soome devfsadm_enumerate_t rules[], int index, numeral_t **matchnpp) 50177c478bd9Sstevel@tonic-gate { 50187c478bd9Sstevel@tonic-gate int matchcount = 0, rv = -1; 50197c478bd9Sstevel@tonic-gate int uncached; 50207c478bd9Sstevel@tonic-gate numeral_t *np; 50217c478bd9Sstevel@tonic-gate char *fcn = "lookup_enum_cache"; 50227c478bd9Sstevel@tonic-gate char *cp; 50237c478bd9Sstevel@tonic-gate 50247c478bd9Sstevel@tonic-gate *matchnpp = NULL; 50257c478bd9Sstevel@tonic-gate 50267c478bd9Sstevel@tonic-gate assert(index < set->re_count); 50277c478bd9Sstevel@tonic-gate 50287c478bd9Sstevel@tonic-gate if (cmp_str == NULL) { 50297c478bd9Sstevel@tonic-gate return (-1); 50307c478bd9Sstevel@tonic-gate } 50317c478bd9Sstevel@tonic-gate 50327c478bd9Sstevel@tonic-gate uncached = 0; 50337c478bd9Sstevel@tonic-gate if ((rules[index].flags & MATCH_UNCACHED) == MATCH_UNCACHED) { 50347c478bd9Sstevel@tonic-gate uncached = 1; 50357c478bd9Sstevel@tonic-gate } 50367c478bd9Sstevel@tonic-gate 50377c478bd9Sstevel@tonic-gate /* 50387c478bd9Sstevel@tonic-gate * Check and see if a matching entry is already cached. 50397c478bd9Sstevel@tonic-gate */ 50407c478bd9Sstevel@tonic-gate for (np = set->headnumeral; np != NULL; np = np->next) { 50418d483882Smlf 50428d483882Smlf /* 50438d483882Smlf * Skip reserved IDs 50448d483882Smlf */ 50458d483882Smlf if (np->flags & NUMERAL_RESERVED) { 50468d483882Smlf vprint(RSRV_MID, "lookup_enum_cache: " 50478d483882Smlf "Cannot Match with reserved ID (%s), " 50488d483882Smlf "skipping\n", np->id); 50498d483882Smlf assert(np->flags == NUMERAL_RESERVED); 50508d483882Smlf continue; 50518d483882Smlf } else { 50528d483882Smlf vprint(RSRV_MID, "lookup_enum_cache: " 50538d483882Smlf "Attempting match with numeral ID: %s" 50548d483882Smlf " numeral flags = %d\n", np->id, np->flags); 50558d483882Smlf assert(np->flags == 0); 50568d483882Smlf } 50578d483882Smlf 50587c478bd9Sstevel@tonic-gate if (np->cmp_str == NULL) { 50597c478bd9Sstevel@tonic-gate vprint(ENUM_MID, "%s: invalid entry in enumerate" 50607c478bd9Sstevel@tonic-gate " cache. path: %s\n", fcn, np->full_path); 50617c478bd9Sstevel@tonic-gate return (-1); 50627c478bd9Sstevel@tonic-gate } 50637c478bd9Sstevel@tonic-gate 50647c478bd9Sstevel@tonic-gate if (uncached) { 50657c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "%s: bypassing enumerate cache." 50667c478bd9Sstevel@tonic-gate " path: %s\n", fcn, cmp_str); 50677c478bd9Sstevel@tonic-gate cp = alloc_cmp_str(np->full_path, 50687c478bd9Sstevel@tonic-gate &rules[np->rule_index]); 50697c478bd9Sstevel@tonic-gate if (cp == NULL) 50707c478bd9Sstevel@tonic-gate return (-1); 50717c478bd9Sstevel@tonic-gate rv = strcmp(cmp_str, cp); 50727c478bd9Sstevel@tonic-gate free(cp); 50737c478bd9Sstevel@tonic-gate } else { 50747c478bd9Sstevel@tonic-gate rv = strcmp(cmp_str, np->cmp_str); 50757c478bd9Sstevel@tonic-gate } 50767c478bd9Sstevel@tonic-gate 50777c478bd9Sstevel@tonic-gate if (rv == 0) { 50787c478bd9Sstevel@tonic-gate if (matchcount++ != 0) { 50797c478bd9Sstevel@tonic-gate break; /* more than 1 match. */ 50807c478bd9Sstevel@tonic-gate } 50817c478bd9Sstevel@tonic-gate *matchnpp = np; 50827c478bd9Sstevel@tonic-gate } 50837c478bd9Sstevel@tonic-gate } 50847c478bd9Sstevel@tonic-gate 50857c478bd9Sstevel@tonic-gate return (matchcount); 50867c478bd9Sstevel@tonic-gate } 50877c478bd9Sstevel@tonic-gate 50887c478bd9Sstevel@tonic-gate #ifdef DEBUG 50897c478bd9Sstevel@tonic-gate static void 50907c478bd9Sstevel@tonic-gate dump_enum_cache(numeral_set_t *setp) 50917c478bd9Sstevel@tonic-gate { 50927c478bd9Sstevel@tonic-gate int i; 50937c478bd9Sstevel@tonic-gate numeral_t *np; 50947c478bd9Sstevel@tonic-gate char *fcn = "dump_enum_cache"; 50957c478bd9Sstevel@tonic-gate 50967c478bd9Sstevel@tonic-gate vprint(ENUM_MID, "%s: re_count = %d\n", fcn, setp->re_count); 50977c478bd9Sstevel@tonic-gate for (i = 0; i < setp->re_count; i++) { 50987c478bd9Sstevel@tonic-gate vprint(ENUM_MID, "%s: re[%d] = %s\n", fcn, i, setp->re[i]); 50997c478bd9Sstevel@tonic-gate } 51007c478bd9Sstevel@tonic-gate 51017c478bd9Sstevel@tonic-gate for (np = setp->headnumeral; np != NULL; np = np->next) { 51027c478bd9Sstevel@tonic-gate vprint(ENUM_MID, "%s: id: %s\n", fcn, np->id); 51037c478bd9Sstevel@tonic-gate vprint(ENUM_MID, "%s: full_path: %s\n", fcn, np->full_path); 51047c478bd9Sstevel@tonic-gate vprint(ENUM_MID, "%s: rule_index: %d\n", fcn, np->rule_index); 51057c478bd9Sstevel@tonic-gate vprint(ENUM_MID, "%s: cmp_str: %s\n", fcn, np->cmp_str); 51068d483882Smlf vprint(ENUM_MID, "%s: flags: %d\n", fcn, np->flags); 51077c478bd9Sstevel@tonic-gate } 51087c478bd9Sstevel@tonic-gate } 51097c478bd9Sstevel@tonic-gate #endif 51107c478bd9Sstevel@tonic-gate 51117c478bd9Sstevel@tonic-gate /* 51127c478bd9Sstevel@tonic-gate * For a given set of regular expressions in rules[], this function returns 51137c478bd9Sstevel@tonic-gate * either a previously cached struct numeral_set or it will create and 51147c478bd9Sstevel@tonic-gate * cache a new struct numeral_set. There is only one struct numeral_set 51157c478bd9Sstevel@tonic-gate * for the combination of REs present in rules[]. Each numeral_set contains 51167c478bd9Sstevel@tonic-gate * the regular expressions in rules[] used for cache selection AND a linked 51177c478bd9Sstevel@tonic-gate * list of struct numerals, ONE FOR EACH *UNIQUE* numeral or character ID 51187c478bd9Sstevel@tonic-gate * selected by the grouping parenthesized subexpression found in the last 51197c478bd9Sstevel@tonic-gate * path component of each rules[].re. For example, the RE: "rmt/([0-9]+)" 51207c478bd9Sstevel@tonic-gate * selects all the logical nodes of the correct form in dev/rmt/. 51217c478bd9Sstevel@tonic-gate * Each rmt/X will store a *single* struct numeral... ie 0, 1, 2 each get a 51227c478bd9Sstevel@tonic-gate * single struct numeral. There is no need to store more than a single logical 51237c478bd9Sstevel@tonic-gate * node matching X since the information desired in the devfspath would be 51247c478bd9Sstevel@tonic-gate * identical for the portion of the devfspath of interest. (the part up to, 51257c478bd9Sstevel@tonic-gate * but not including the minor name in this example.) 51267c478bd9Sstevel@tonic-gate * 51277c478bd9Sstevel@tonic-gate * If the given numeral_set is not yet cached, call enumerate_recurse to 51287c478bd9Sstevel@tonic-gate * create it. 51297c478bd9Sstevel@tonic-gate */ 51307c478bd9Sstevel@tonic-gate static numeral_set_t * 51317c478bd9Sstevel@tonic-gate get_enum_cache(devfsadm_enumerate_t rules[], int nrules) 51327c478bd9Sstevel@tonic-gate { 51337c478bd9Sstevel@tonic-gate /* linked list of numeral sets */ 51347c478bd9Sstevel@tonic-gate numeral_set_t *setp; 51357c478bd9Sstevel@tonic-gate int i; 51368d483882Smlf int ret; 51377c478bd9Sstevel@tonic-gate char *path_left; 51388d483882Smlf enumerate_file_t *entry; 51397c478bd9Sstevel@tonic-gate char *fcn = "get_enum_cache"; 51407c478bd9Sstevel@tonic-gate 51417c478bd9Sstevel@tonic-gate /* 51427c478bd9Sstevel@tonic-gate * See if we've already cached this numeral set. 51437c478bd9Sstevel@tonic-gate */ 51447c478bd9Sstevel@tonic-gate for (setp = head_numeral_set; setp != NULL; setp = setp->next) { 51457c478bd9Sstevel@tonic-gate /* 51467c478bd9Sstevel@tonic-gate * check all regexp's passed in function against 51477c478bd9Sstevel@tonic-gate * those in cached set. 51487c478bd9Sstevel@tonic-gate */ 51497c478bd9Sstevel@tonic-gate if (nrules != setp->re_count) { 51507c478bd9Sstevel@tonic-gate continue; 51517c478bd9Sstevel@tonic-gate } 51527c478bd9Sstevel@tonic-gate 51537c478bd9Sstevel@tonic-gate for (i = 0; i < nrules; i++) { 51547c478bd9Sstevel@tonic-gate if (strcmp(setp->re[i], rules[i].re) != 0) { 51557c478bd9Sstevel@tonic-gate break; 51567c478bd9Sstevel@tonic-gate } 51577c478bd9Sstevel@tonic-gate } 51587c478bd9Sstevel@tonic-gate 51597c478bd9Sstevel@tonic-gate if (i == nrules) { 51607c478bd9Sstevel@tonic-gate return (setp); 51617c478bd9Sstevel@tonic-gate } 51627c478bd9Sstevel@tonic-gate } 51637c478bd9Sstevel@tonic-gate 51647c478bd9Sstevel@tonic-gate /* 51657c478bd9Sstevel@tonic-gate * If the MATCH_UNCACHED flag is set, we should not be here. 51667c478bd9Sstevel@tonic-gate */ 51677c478bd9Sstevel@tonic-gate for (i = 0; i < nrules; i++) { 51687c478bd9Sstevel@tonic-gate if ((rules[i].flags & MATCH_UNCACHED) == MATCH_UNCACHED) { 51697c478bd9Sstevel@tonic-gate vprint(ENUM_MID, "%s: invalid enumeration flags: " 51707c478bd9Sstevel@tonic-gate "0x%x\n", fcn, rules[i].flags); 51717c478bd9Sstevel@tonic-gate return (NULL); 51727c478bd9Sstevel@tonic-gate } 51737c478bd9Sstevel@tonic-gate } 51747c478bd9Sstevel@tonic-gate 51757c478bd9Sstevel@tonic-gate /* 51767c478bd9Sstevel@tonic-gate * Since we made it here, we have not yet cached the given set of 51777c478bd9Sstevel@tonic-gate * logical nodes matching the passed re. Create a cached entry 51787c478bd9Sstevel@tonic-gate * struct numeral_set and populate it with a minimal set of 51797c478bd9Sstevel@tonic-gate * logical nodes from /dev. 51807c478bd9Sstevel@tonic-gate */ 51817c478bd9Sstevel@tonic-gate 51827c478bd9Sstevel@tonic-gate setp = s_malloc(sizeof (numeral_set_t)); 51837c478bd9Sstevel@tonic-gate setp->re = s_malloc(sizeof (char *) * nrules); 51847c478bd9Sstevel@tonic-gate for (i = 0; i < nrules; i++) { 51857c478bd9Sstevel@tonic-gate setp->re[i] = s_strdup(rules[i].re); 51867c478bd9Sstevel@tonic-gate } 51877c478bd9Sstevel@tonic-gate setp->re_count = nrules; 51887c478bd9Sstevel@tonic-gate setp->headnumeral = NULL; 51897c478bd9Sstevel@tonic-gate 51907c478bd9Sstevel@tonic-gate /* put this new cached set on the cached set list */ 51917c478bd9Sstevel@tonic-gate setp->next = head_numeral_set; 51927c478bd9Sstevel@tonic-gate head_numeral_set = setp; 51937c478bd9Sstevel@tonic-gate 51948d483882Smlf /* 51958d483882Smlf * For each RE, search the "reserved" list to create numeral IDs that 51968d483882Smlf * are reserved. 51978d483882Smlf */ 51988d483882Smlf for (entry = enumerate_reserved; entry; entry = entry->er_next) { 51998d483882Smlf 52008d483882Smlf vprint(RSRV_MID, "parsing rstring: %s\n", entry->er_file); 52018d483882Smlf 52028d483882Smlf for (i = 0; i < nrules; i++) { 52038d483882Smlf path_left = s_strdup(setp->re[i]); 52048d483882Smlf vprint(RSRV_MID, "parsing rule RE: %s\n", path_left); 52058d483882Smlf ret = enumerate_parse(entry->er_file, path_left, 52068d483882Smlf setp, rules, i); 52078d483882Smlf free(path_left); 52088d483882Smlf if (ret == 1) { 52098d483882Smlf /* 52108d483882Smlf * We found the reserved ID for this entry. 52118d483882Smlf * We still keep the entry since it is needed 52128d483882Smlf * by the new link bypass code in disks 52138d483882Smlf */ 52148d483882Smlf vprint(RSRV_MID, "found rsv ID: rstring: %s " 52158d483882Smlf "rule RE: %s\n", entry->er_file, path_left); 52168d483882Smlf break; 52178d483882Smlf } 52188d483882Smlf } 52198d483882Smlf } 52208d483882Smlf 52217c478bd9Sstevel@tonic-gate /* 52227c478bd9Sstevel@tonic-gate * For each RE, search disk and cache any matches on the 5223facf4a8dSllai * numeral list. 52247c478bd9Sstevel@tonic-gate */ 52257c478bd9Sstevel@tonic-gate for (i = 0; i < nrules; i++) { 52267c478bd9Sstevel@tonic-gate path_left = s_strdup(setp->re[i]); 5227facf4a8dSllai enumerate_recurse(dev_dir, path_left, setp, rules, i); 52287c478bd9Sstevel@tonic-gate free(path_left); 52297c478bd9Sstevel@tonic-gate } 52307c478bd9Sstevel@tonic-gate 52317c478bd9Sstevel@tonic-gate #ifdef DEBUG 52327c478bd9Sstevel@tonic-gate dump_enum_cache(setp); 52337c478bd9Sstevel@tonic-gate #endif 52347c478bd9Sstevel@tonic-gate 52357c478bd9Sstevel@tonic-gate return (setp); 52367c478bd9Sstevel@tonic-gate } 52377c478bd9Sstevel@tonic-gate 52387c478bd9Sstevel@tonic-gate 52397c478bd9Sstevel@tonic-gate /* 52407c478bd9Sstevel@tonic-gate * This function stats the pathname namebuf. If this is a directory 52417c478bd9Sstevel@tonic-gate * entry, we recurse down dname/fname until we find the first symbolic 52427c478bd9Sstevel@tonic-gate * link, and then stat and return it. This is valid for the same reason 52437c478bd9Sstevel@tonic-gate * that we only need to read a single pathname for multiple matching 52447c478bd9Sstevel@tonic-gate * logical ID's... ie, all the logical nodes should contain identical 52457c478bd9Sstevel@tonic-gate * physical paths for the parts we are interested. 52467c478bd9Sstevel@tonic-gate */ 52477c478bd9Sstevel@tonic-gate int 52487c478bd9Sstevel@tonic-gate get_stat_info(char *namebuf, struct stat *sb) 52497c478bd9Sstevel@tonic-gate { 52507c478bd9Sstevel@tonic-gate char *cp; 525173de625bSjg finddevhdl_t fhandle; 525273de625bSjg const char *fp; 52537c478bd9Sstevel@tonic-gate 52547c478bd9Sstevel@tonic-gate if (lstat(namebuf, sb) < 0) { 52557c478bd9Sstevel@tonic-gate (void) err_print(LSTAT_FAILED, namebuf, strerror(errno)); 52567c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 52577c478bd9Sstevel@tonic-gate } 52587c478bd9Sstevel@tonic-gate 52597c478bd9Sstevel@tonic-gate if ((sb->st_mode & S_IFMT) == S_IFLNK) { 52607c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 52617c478bd9Sstevel@tonic-gate } 52627c478bd9Sstevel@tonic-gate 52637c478bd9Sstevel@tonic-gate /* 52647c478bd9Sstevel@tonic-gate * If it is a dir, recurse down until we find a link and 52657c478bd9Sstevel@tonic-gate * then use the link. 52667c478bd9Sstevel@tonic-gate */ 52677c478bd9Sstevel@tonic-gate if ((sb->st_mode & S_IFMT) == S_IFDIR) { 52687c478bd9Sstevel@tonic-gate 526973de625bSjg if (finddev_readdir(namebuf, &fhandle) != 0) { 52707c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 52717c478bd9Sstevel@tonic-gate } 52727c478bd9Sstevel@tonic-gate 52737c478bd9Sstevel@tonic-gate /* 52747c478bd9Sstevel@tonic-gate * Search each dir entry looking for a symlink. Return 52757c478bd9Sstevel@tonic-gate * the first symlink found in namebuf. Recurse dirs. 52767c478bd9Sstevel@tonic-gate */ 527773de625bSjg while ((fp = finddev_next(fhandle)) != NULL) { 52787c478bd9Sstevel@tonic-gate cp = namebuf + strlen(namebuf); 5279facf4a8dSllai if ((strlcat(namebuf, "/", PATH_MAX) >= PATH_MAX) || 528073de625bSjg (strlcat(namebuf, fp, PATH_MAX) >= PATH_MAX)) { 5281facf4a8dSllai *cp = '\0'; 528273de625bSjg finddev_close(fhandle); 5283facf4a8dSllai return (DEVFSADM_FAILURE); 5284facf4a8dSllai } 52857c478bd9Sstevel@tonic-gate if (get_stat_info(namebuf, sb) == DEVFSADM_SUCCESS) { 528673de625bSjg finddev_close(fhandle); 52877c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 52887c478bd9Sstevel@tonic-gate } 52897c478bd9Sstevel@tonic-gate *cp = '\0'; 52907c478bd9Sstevel@tonic-gate } 529173de625bSjg finddev_close(fhandle); 52927c478bd9Sstevel@tonic-gate } 52937c478bd9Sstevel@tonic-gate 52947c478bd9Sstevel@tonic-gate /* no symlink found, so return error */ 52957c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 52967c478bd9Sstevel@tonic-gate } 52977c478bd9Sstevel@tonic-gate 52987c478bd9Sstevel@tonic-gate /* 52997c478bd9Sstevel@tonic-gate * An existing matching ID was not found, so this function is called to 53007c478bd9Sstevel@tonic-gate * create the next lowest ID. In the INTEGER case, return the next 53017c478bd9Sstevel@tonic-gate * lowest unused integer. In the case of LETTER, return the next lowest 53027c478bd9Sstevel@tonic-gate * unused letter. Return empty string if all 26 are used. 53037c478bd9Sstevel@tonic-gate * Only IDs >= min will be returned. 53047c478bd9Sstevel@tonic-gate */ 53057c478bd9Sstevel@tonic-gate char * 53067c478bd9Sstevel@tonic-gate new_id(numeral_t *numeral, int type, char *min) 53077c478bd9Sstevel@tonic-gate { 53087c478bd9Sstevel@tonic-gate int imin; 53097c478bd9Sstevel@tonic-gate temp_t *temp; 53107c478bd9Sstevel@tonic-gate temp_t *ptr; 53117c478bd9Sstevel@tonic-gate temp_t **previous; 53127c478bd9Sstevel@tonic-gate temp_t *head = NULL; 53137c478bd9Sstevel@tonic-gate char *retval; 53147c478bd9Sstevel@tonic-gate static char tempbuff[8]; 53157c478bd9Sstevel@tonic-gate numeral_t *np; 53167c478bd9Sstevel@tonic-gate 53177c478bd9Sstevel@tonic-gate if (type == LETTER) { 53187c478bd9Sstevel@tonic-gate 53197c478bd9Sstevel@tonic-gate char letter[26], i; 53207c478bd9Sstevel@tonic-gate 53217c478bd9Sstevel@tonic-gate if (numeral == NULL) { 53227c478bd9Sstevel@tonic-gate return (s_strdup(min)); 53237c478bd9Sstevel@tonic-gate } 53247c478bd9Sstevel@tonic-gate 53257c478bd9Sstevel@tonic-gate for (i = 0; i < 26; i++) { 53267c478bd9Sstevel@tonic-gate letter[i] = 0; 53277c478bd9Sstevel@tonic-gate } 53287c478bd9Sstevel@tonic-gate 53297c478bd9Sstevel@tonic-gate for (np = numeral; np != NULL; np = np->next) { 53308d483882Smlf assert(np->flags == 0 || 53318d483882Smlf np->flags == NUMERAL_RESERVED); 53327c478bd9Sstevel@tonic-gate letter[*np->id - 'a']++; 53337c478bd9Sstevel@tonic-gate } 53347c478bd9Sstevel@tonic-gate 53357c478bd9Sstevel@tonic-gate imin = *min - 'a'; 53367c478bd9Sstevel@tonic-gate 53377c478bd9Sstevel@tonic-gate for (i = imin; i < 26; i++) { 53387c478bd9Sstevel@tonic-gate if (letter[i] == 0) { 53397c478bd9Sstevel@tonic-gate retval = s_malloc(2); 53407c478bd9Sstevel@tonic-gate retval[0] = 'a' + i; 53417c478bd9Sstevel@tonic-gate retval[1] = '\0'; 53427c478bd9Sstevel@tonic-gate return (retval); 53437c478bd9Sstevel@tonic-gate } 53447c478bd9Sstevel@tonic-gate } 53457c478bd9Sstevel@tonic-gate 53467c478bd9Sstevel@tonic-gate return (s_strdup("")); 53477c478bd9Sstevel@tonic-gate } 53487c478bd9Sstevel@tonic-gate 53497c478bd9Sstevel@tonic-gate if (type == INTEGER) { 53507c478bd9Sstevel@tonic-gate 53517c478bd9Sstevel@tonic-gate if (numeral == NULL) { 53527c478bd9Sstevel@tonic-gate return (s_strdup(min)); 53537c478bd9Sstevel@tonic-gate } 53547c478bd9Sstevel@tonic-gate 53557c478bd9Sstevel@tonic-gate imin = atoi(min); 53567c478bd9Sstevel@tonic-gate 53577c478bd9Sstevel@tonic-gate /* sort list */ 53587c478bd9Sstevel@tonic-gate for (np = numeral; np != NULL; np = np->next) { 53598d483882Smlf assert(np->flags == 0 || 53608d483882Smlf np->flags == NUMERAL_RESERVED); 53617c478bd9Sstevel@tonic-gate temp = s_malloc(sizeof (temp_t)); 53627c478bd9Sstevel@tonic-gate temp->integer = atoi(np->id); 53637c478bd9Sstevel@tonic-gate temp->next = NULL; 53647c478bd9Sstevel@tonic-gate 53657c478bd9Sstevel@tonic-gate previous = &head; 53667c478bd9Sstevel@tonic-gate for (ptr = head; ptr != NULL; ptr = ptr->next) { 53677c478bd9Sstevel@tonic-gate if (temp->integer < ptr->integer) { 53687c478bd9Sstevel@tonic-gate temp->next = ptr; 53697c478bd9Sstevel@tonic-gate *previous = temp; 53707c478bd9Sstevel@tonic-gate break; 53717c478bd9Sstevel@tonic-gate } 53727c478bd9Sstevel@tonic-gate previous = &(ptr->next); 53737c478bd9Sstevel@tonic-gate } 53747c478bd9Sstevel@tonic-gate if (ptr == NULL) { 53757c478bd9Sstevel@tonic-gate *previous = temp; 53767c478bd9Sstevel@tonic-gate } 53777c478bd9Sstevel@tonic-gate } 53787c478bd9Sstevel@tonic-gate 53797c478bd9Sstevel@tonic-gate /* now search sorted list for first hole >= imin */ 53807c478bd9Sstevel@tonic-gate for (ptr = head; ptr != NULL; ptr = ptr->next) { 53817c478bd9Sstevel@tonic-gate if (imin == ptr->integer) { 53827c478bd9Sstevel@tonic-gate imin++; 53837c478bd9Sstevel@tonic-gate } else { 53847c478bd9Sstevel@tonic-gate if (imin < ptr->integer) { 53857c478bd9Sstevel@tonic-gate break; 53867c478bd9Sstevel@tonic-gate } 53877c478bd9Sstevel@tonic-gate } 53887c478bd9Sstevel@tonic-gate 53897c478bd9Sstevel@tonic-gate } 53907c478bd9Sstevel@tonic-gate 53917c478bd9Sstevel@tonic-gate /* free temp list */ 53927c478bd9Sstevel@tonic-gate for (ptr = head; ptr != NULL; ) { 53937c478bd9Sstevel@tonic-gate temp = ptr; 53947c478bd9Sstevel@tonic-gate ptr = ptr->next; 53957c478bd9Sstevel@tonic-gate free(temp); 53967c478bd9Sstevel@tonic-gate } 53977c478bd9Sstevel@tonic-gate 53987c478bd9Sstevel@tonic-gate (void) sprintf(tempbuff, "%d", imin); 53997c478bd9Sstevel@tonic-gate return (s_strdup(tempbuff)); 54007c478bd9Sstevel@tonic-gate } 54017c478bd9Sstevel@tonic-gate 54027c478bd9Sstevel@tonic-gate return (s_strdup("")); 54037c478bd9Sstevel@tonic-gate } 54047c478bd9Sstevel@tonic-gate 54058d483882Smlf static int 54068d483882Smlf enumerate_parse(char *rsvstr, char *path_left, numeral_set_t *setp, 5407406fc510SToomas Soome devfsadm_enumerate_t rules[], int index) 54088d483882Smlf { 54098d483882Smlf char *slash1 = NULL; 54108d483882Smlf char *slash2 = NULL; 54118d483882Smlf char *numeral_id; 54128d483882Smlf char *path_left_save; 54138d483882Smlf char *rsvstr_save; 54148d483882Smlf int ret = 0; 54158d483882Smlf static int warned = 0; 54168d483882Smlf 54178d483882Smlf rsvstr_save = rsvstr; 54188d483882Smlf path_left_save = path_left; 54198d483882Smlf 54208d483882Smlf if (rsvstr == NULL || rsvstr[0] == '\0' || rsvstr[0] == '/') { 54218d483882Smlf if (!warned) { 54228d483882Smlf err_print("invalid reserved filepath: %s\n", 54238d483882Smlf rsvstr ? rsvstr : "<NULL>"); 54248d483882Smlf warned = 1; 54258d483882Smlf } 54268d483882Smlf return (0); 54278d483882Smlf } 54288d483882Smlf 54298d483882Smlf vprint(RSRV_MID, "processing rule: %s, rstring: %s\n", 54308d483882Smlf path_left, rsvstr); 54318d483882Smlf 54328d483882Smlf 54338d483882Smlf for (;;) { 54348d483882Smlf /* get rid of any extra '/' in the reserve string */ 54358d483882Smlf while (*rsvstr == '/') { 54368d483882Smlf rsvstr++; 54378d483882Smlf } 54388d483882Smlf 54398d483882Smlf /* get rid of any extra '/' in the RE */ 54408d483882Smlf while (*path_left == '/') { 54418d483882Smlf path_left++; 54428d483882Smlf } 54438d483882Smlf 54448d483882Smlf if (slash1 = strchr(path_left, '/')) { 54458d483882Smlf *slash1 = '\0'; 54468d483882Smlf } 54478d483882Smlf if (slash2 = strchr(rsvstr, '/')) { 54488d483882Smlf *slash2 = '\0'; 54498d483882Smlf } 54508d483882Smlf 54518d483882Smlf if ((slash1 != NULL) ^ (slash2 != NULL)) { 54528d483882Smlf ret = 0; 54538d483882Smlf vprint(RSRV_MID, "mismatch in # of path components\n"); 54548d483882Smlf goto out; 54558d483882Smlf } 54568d483882Smlf 54578d483882Smlf /* 54588d483882Smlf * Returns true if path_left matches the list entry. 54598d483882Smlf * If it is the last path component, pass subexp 54608d483882Smlf * so that it will return the corresponding ID in 54618d483882Smlf * numeral_id. 54628d483882Smlf */ 54638d483882Smlf numeral_id = NULL; 54648d483882Smlf if (match_path_component(path_left, rsvstr, &numeral_id, 54650a653502Swroche slash1 ? 0 : rules[index].subexp)) { 54668d483882Smlf 54678d483882Smlf /* We have a match. */ 54688d483882Smlf if (slash1 == NULL) { 54698d483882Smlf /* Is last path component */ 54708d483882Smlf vprint(RSRV_MID, "match and last component\n"); 54718d483882Smlf create_reserved_numeral(setp, numeral_id); 54728d483882Smlf if (numeral_id != NULL) { 54738d483882Smlf free(numeral_id); 54748d483882Smlf } 54758d483882Smlf ret = 1; 54768d483882Smlf goto out; 54778d483882Smlf } else { 54788d483882Smlf /* Not last path component. Continue parsing */ 54798d483882Smlf *slash1 = '/'; 54808d483882Smlf *slash2 = '/'; 54818d483882Smlf path_left = slash1 + 1; 54828d483882Smlf rsvstr = slash2 + 1; 54838d483882Smlf vprint(RSRV_MID, 54848d483882Smlf "match and NOT last component\n"); 54858d483882Smlf continue; 54868d483882Smlf } 54878d483882Smlf } else { 54888d483882Smlf /* No match */ 54898d483882Smlf ret = 0; 54908d483882Smlf vprint(RSRV_MID, "No match: rule RE = %s, " 54918d483882Smlf "rstring = %s\n", path_left, rsvstr); 54928d483882Smlf goto out; 54938d483882Smlf } 54948d483882Smlf } 54958d483882Smlf 54968d483882Smlf out: 54978d483882Smlf if (slash1) 54988d483882Smlf *slash1 = '/'; 54998d483882Smlf if (slash2) 55008d483882Smlf *slash2 = '/'; 55018d483882Smlf 55028d483882Smlf if (ret == 1) { 55038d483882Smlf vprint(RSRV_MID, "match: rule RE: %s, rstring: %s\n", 55048d483882Smlf path_left_save, rsvstr_save); 55058d483882Smlf } else { 55068d483882Smlf vprint(RSRV_MID, "NO match: rule RE: %s, rstring: %s\n", 55078d483882Smlf path_left_save, rsvstr_save); 55088d483882Smlf } 55098d483882Smlf 55108d483882Smlf return (ret); 55118d483882Smlf } 55128d483882Smlf 55137c478bd9Sstevel@tonic-gate /* 55147c478bd9Sstevel@tonic-gate * Search current_dir for all files which match the first path component 55157c478bd9Sstevel@tonic-gate * of path_left, which is an RE. If a match is found, but there are more 55167c478bd9Sstevel@tonic-gate * components of path_left, then recurse, otherwise, if we have reached 55177c478bd9Sstevel@tonic-gate * the last component of path_left, call create_cached_numerals for each 55187c478bd9Sstevel@tonic-gate * file. At some point, recurse_dev_re() should be rewritten so that this 55197c478bd9Sstevel@tonic-gate * function can be eliminated. 55207c478bd9Sstevel@tonic-gate */ 55217c478bd9Sstevel@tonic-gate static void 55227c478bd9Sstevel@tonic-gate enumerate_recurse(char *current_dir, char *path_left, numeral_set_t *setp, 5523406fc510SToomas Soome devfsadm_enumerate_t rules[], int index) 55247c478bd9Sstevel@tonic-gate { 55257c478bd9Sstevel@tonic-gate char *slash; 55267c478bd9Sstevel@tonic-gate char *new_path; 55277c478bd9Sstevel@tonic-gate char *numeral_id; 552873de625bSjg finddevhdl_t fhandle; 552973de625bSjg const char *fp; 55307c478bd9Sstevel@tonic-gate 553173de625bSjg if (finddev_readdir(current_dir, &fhandle) != 0) { 55327c478bd9Sstevel@tonic-gate return; 55337c478bd9Sstevel@tonic-gate } 55347c478bd9Sstevel@tonic-gate 55357c478bd9Sstevel@tonic-gate /* get rid of any extra '/' */ 55367c478bd9Sstevel@tonic-gate while (*path_left == '/') { 55377c478bd9Sstevel@tonic-gate path_left++; 55387c478bd9Sstevel@tonic-gate } 55397c478bd9Sstevel@tonic-gate 55407c478bd9Sstevel@tonic-gate if (slash = strchr(path_left, '/')) { 55417c478bd9Sstevel@tonic-gate *slash = '\0'; 55427c478bd9Sstevel@tonic-gate } 55437c478bd9Sstevel@tonic-gate 554473de625bSjg while ((fp = finddev_next(fhandle)) != NULL) { 55457c478bd9Sstevel@tonic-gate 55467c478bd9Sstevel@tonic-gate /* 5547facf4a8dSllai * Returns true if path_left matches the list entry. 55487c478bd9Sstevel@tonic-gate * If it is the last path component, pass subexp 55497c478bd9Sstevel@tonic-gate * so that it will return the corresponding ID in 55507c478bd9Sstevel@tonic-gate * numeral_id. 55517c478bd9Sstevel@tonic-gate */ 55527c478bd9Sstevel@tonic-gate numeral_id = NULL; 555373de625bSjg if (match_path_component(path_left, (char *)fp, &numeral_id, 55540a653502Swroche slash ? 0 : rules[index].subexp)) { 55557c478bd9Sstevel@tonic-gate 55567c478bd9Sstevel@tonic-gate new_path = s_malloc(strlen(current_dir) + 555773de625bSjg strlen(fp) + 2); 55587c478bd9Sstevel@tonic-gate 55597c478bd9Sstevel@tonic-gate (void) strcpy(new_path, current_dir); 55607c478bd9Sstevel@tonic-gate (void) strcat(new_path, "/"); 556173de625bSjg (void) strcat(new_path, fp); 55627c478bd9Sstevel@tonic-gate 55637c478bd9Sstevel@tonic-gate if (slash != NULL) { 55647c478bd9Sstevel@tonic-gate enumerate_recurse(new_path, slash + 1, 55657c478bd9Sstevel@tonic-gate setp, rules, index); 55667c478bd9Sstevel@tonic-gate } else { 55677c478bd9Sstevel@tonic-gate create_cached_numeral(new_path, setp, 55687c478bd9Sstevel@tonic-gate numeral_id, rules, index); 55697c478bd9Sstevel@tonic-gate if (numeral_id != NULL) { 55707c478bd9Sstevel@tonic-gate free(numeral_id); 55717c478bd9Sstevel@tonic-gate } 55727c478bd9Sstevel@tonic-gate } 55737c478bd9Sstevel@tonic-gate free(new_path); 55747c478bd9Sstevel@tonic-gate } 55757c478bd9Sstevel@tonic-gate } 55767c478bd9Sstevel@tonic-gate 55777c478bd9Sstevel@tonic-gate if (slash != NULL) { 55787c478bd9Sstevel@tonic-gate *slash = '/'; 55797c478bd9Sstevel@tonic-gate } 558073de625bSjg finddev_close(fhandle); 55817c478bd9Sstevel@tonic-gate } 55827c478bd9Sstevel@tonic-gate 55837c478bd9Sstevel@tonic-gate 55847c478bd9Sstevel@tonic-gate /* 55857c478bd9Sstevel@tonic-gate * Returns true if file matches file_re. If subexp is non-zero, it means 55867c478bd9Sstevel@tonic-gate * we are searching the last path component and need to return the 55877c478bd9Sstevel@tonic-gate * parenthesized subexpression subexp in id. 55887c478bd9Sstevel@tonic-gate * 55897c478bd9Sstevel@tonic-gate */ 55907c478bd9Sstevel@tonic-gate static int 55917c478bd9Sstevel@tonic-gate match_path_component(char *file_re, char *file, char **id, int subexp) 55927c478bd9Sstevel@tonic-gate { 55937c478bd9Sstevel@tonic-gate regex_t re1; 55947c478bd9Sstevel@tonic-gate int match = 0; 55957c478bd9Sstevel@tonic-gate int nelements; 55967c478bd9Sstevel@tonic-gate regmatch_t *pmatch; 55977c478bd9Sstevel@tonic-gate 55987c478bd9Sstevel@tonic-gate if (subexp != 0) { 55997c478bd9Sstevel@tonic-gate nelements = subexp + 1; 56000a653502Swroche pmatch = 56010a653502Swroche (regmatch_t *)s_malloc(sizeof (regmatch_t) * nelements); 56027c478bd9Sstevel@tonic-gate } else { 56037c478bd9Sstevel@tonic-gate pmatch = NULL; 56047c478bd9Sstevel@tonic-gate nelements = 0; 56057c478bd9Sstevel@tonic-gate } 56067c478bd9Sstevel@tonic-gate 56077c478bd9Sstevel@tonic-gate if (regcomp(&re1, file_re, REG_EXTENDED) != 0) { 56087c478bd9Sstevel@tonic-gate if (pmatch != NULL) { 56097c478bd9Sstevel@tonic-gate free(pmatch); 56107c478bd9Sstevel@tonic-gate } 56117c478bd9Sstevel@tonic-gate return (0); 56127c478bd9Sstevel@tonic-gate } 56137c478bd9Sstevel@tonic-gate 56147c478bd9Sstevel@tonic-gate if (regexec(&re1, file, nelements, pmatch, 0) == 0) { 56157c478bd9Sstevel@tonic-gate match = 1; 56167c478bd9Sstevel@tonic-gate } 56177c478bd9Sstevel@tonic-gate 56187c478bd9Sstevel@tonic-gate if ((match != 0) && (subexp != 0)) { 56197c478bd9Sstevel@tonic-gate int size = pmatch[subexp].rm_eo - pmatch[subexp].rm_so; 56207c478bd9Sstevel@tonic-gate *id = s_malloc(size + 1); 56217c478bd9Sstevel@tonic-gate (void) strncpy(*id, &file[pmatch[subexp].rm_so], size); 56227c478bd9Sstevel@tonic-gate (*id)[size] = '\0'; 56237c478bd9Sstevel@tonic-gate } 56247c478bd9Sstevel@tonic-gate 56257c478bd9Sstevel@tonic-gate if (pmatch != NULL) { 56267c478bd9Sstevel@tonic-gate free(pmatch); 56277c478bd9Sstevel@tonic-gate } 56287c478bd9Sstevel@tonic-gate regfree(&re1); 56297c478bd9Sstevel@tonic-gate return (match); 56307c478bd9Sstevel@tonic-gate } 56317c478bd9Sstevel@tonic-gate 56328d483882Smlf static void 56338d483882Smlf create_reserved_numeral(numeral_set_t *setp, char *numeral_id) 56348d483882Smlf { 56358d483882Smlf numeral_t *np; 56368d483882Smlf 56378d483882Smlf vprint(RSRV_MID, "Attempting to create reserved numeral: %s\n", 56388d483882Smlf numeral_id); 56398d483882Smlf 56408d483882Smlf /* 56418d483882Smlf * We found a numeral_id from an entry in the enumerate_reserved file 56428d483882Smlf * which matched the re passed in from devfsadm_enumerate. We only 56438d483882Smlf * need to make sure ONE copy of numeral_id exists on the numeral list. 56448d483882Smlf * We only need to store /dev/dsk/cNtod0s0 and no other entries 56458d483882Smlf * hanging off of controller N. 56468d483882Smlf */ 56478d483882Smlf for (np = setp->headnumeral; np != NULL; np = np->next) { 56488d483882Smlf if (strcmp(numeral_id, np->id) == 0) { 56498d483882Smlf vprint(RSRV_MID, "ID: %s, already reserved\n", np->id); 56508d483882Smlf assert(np->flags == NUMERAL_RESERVED); 56518d483882Smlf return; 56528d483882Smlf } else { 56538d483882Smlf assert(np->flags == 0 || 56548d483882Smlf np->flags == NUMERAL_RESERVED); 56558d483882Smlf } 56568d483882Smlf } 56578d483882Smlf 56588d483882Smlf /* NOT on list, so add it */ 56598d483882Smlf np = s_malloc(sizeof (numeral_t)); 56608d483882Smlf np->id = s_strdup(numeral_id); 56618d483882Smlf np->full_path = NULL; 56628d483882Smlf np->rule_index = 0; 56638d483882Smlf np->cmp_str = NULL; 56648d483882Smlf np->flags = NUMERAL_RESERVED; 56658d483882Smlf np->next = setp->headnumeral; 56668d483882Smlf setp->headnumeral = np; 56678d483882Smlf 56688d483882Smlf vprint(RSRV_MID, "Reserved numeral ID: %s\n", np->id); 56698d483882Smlf } 56708d483882Smlf 56717c478bd9Sstevel@tonic-gate /* 56727c478bd9Sstevel@tonic-gate * This function is called for every file which matched the leaf 56737c478bd9Sstevel@tonic-gate * component of the RE. If the "numeral_id" is not already on the 56747c478bd9Sstevel@tonic-gate * numeral set's numeral list, add it and its physical path. 56757c478bd9Sstevel@tonic-gate */ 56767c478bd9Sstevel@tonic-gate static void 56777c478bd9Sstevel@tonic-gate create_cached_numeral(char *path, numeral_set_t *setp, char *numeral_id, 5678406fc510SToomas Soome devfsadm_enumerate_t rules[], int index) 56797c478bd9Sstevel@tonic-gate { 56807c478bd9Sstevel@tonic-gate char linkbuf[PATH_MAX + 1]; 56817c478bd9Sstevel@tonic-gate char lpath[PATH_MAX + 1]; 56827c478bd9Sstevel@tonic-gate char *linkptr, *cmp_str; 56837c478bd9Sstevel@tonic-gate numeral_t *np; 56847c478bd9Sstevel@tonic-gate int linksize; 56857c478bd9Sstevel@tonic-gate struct stat sb; 568694c894bbSVikram Hegde char *contents; 56877c478bd9Sstevel@tonic-gate const char *fcn = "create_cached_numeral"; 56887c478bd9Sstevel@tonic-gate 56897c478bd9Sstevel@tonic-gate assert(index >= 0 && index < setp->re_count); 56907c478bd9Sstevel@tonic-gate assert(strcmp(rules[index].re, setp->re[index]) == 0); 56917c478bd9Sstevel@tonic-gate 56927c478bd9Sstevel@tonic-gate /* 56937c478bd9Sstevel@tonic-gate * We found a numeral_id from an entry in /dev which matched 56947c478bd9Sstevel@tonic-gate * the re passed in from devfsadm_enumerate. We only need to make sure 56957c478bd9Sstevel@tonic-gate * ONE copy of numeral_id exists on the numeral list. We only need 56967c478bd9Sstevel@tonic-gate * to store /dev/dsk/cNtod0s0 and no other entries hanging off 56977c478bd9Sstevel@tonic-gate * of controller N. 56987c478bd9Sstevel@tonic-gate */ 56997c478bd9Sstevel@tonic-gate for (np = setp->headnumeral; np != NULL; np = np->next) { 57008d483882Smlf assert(np->flags == 0 || np->flags == NUMERAL_RESERVED); 57017c478bd9Sstevel@tonic-gate if (strcmp(numeral_id, np->id) == 0) { 57028d483882Smlf /* 57038d483882Smlf * Note that we can't assert that the flags field 57048d483882Smlf * of the numeral is 0, since both reserved and 57058d483882Smlf * unreserved links in /dev come here 57068d483882Smlf */ 57078d483882Smlf if (np->flags == NUMERAL_RESERVED) { 57088d483882Smlf vprint(RSRV_MID, "ID derived from /dev link is" 57098d483882Smlf " reserved: %s\n", np->id); 57108d483882Smlf } else { 57118d483882Smlf vprint(RSRV_MID, "ID derived from /dev link is" 57128d483882Smlf " NOT reserved: %s\n", np->id); 57138d483882Smlf } 57147c478bd9Sstevel@tonic-gate return; 57157c478bd9Sstevel@tonic-gate } 57167c478bd9Sstevel@tonic-gate } 57177c478bd9Sstevel@tonic-gate 57187c478bd9Sstevel@tonic-gate /* NOT on list, so add it */ 57197c478bd9Sstevel@tonic-gate 57207c478bd9Sstevel@tonic-gate (void) strcpy(lpath, path); 57217c478bd9Sstevel@tonic-gate /* 57227c478bd9Sstevel@tonic-gate * If path is a dir, it is changed to the first symbolic link it find 57237c478bd9Sstevel@tonic-gate * if it finds one. 57247c478bd9Sstevel@tonic-gate */ 57257c478bd9Sstevel@tonic-gate if (get_stat_info(lpath, &sb) == DEVFSADM_FAILURE) { 57267c478bd9Sstevel@tonic-gate return; 57277c478bd9Sstevel@tonic-gate } 57287c478bd9Sstevel@tonic-gate 57297c478bd9Sstevel@tonic-gate /* If we get here, we found a symlink */ 57307c478bd9Sstevel@tonic-gate linksize = readlink(lpath, linkbuf, PATH_MAX); 57317c478bd9Sstevel@tonic-gate 57327c478bd9Sstevel@tonic-gate if (linksize <= 0) { 57337c478bd9Sstevel@tonic-gate err_print(READLINK_FAILED, fcn, lpath, strerror(errno)); 57347c478bd9Sstevel@tonic-gate return; 57357c478bd9Sstevel@tonic-gate } 57367c478bd9Sstevel@tonic-gate 57377c478bd9Sstevel@tonic-gate linkbuf[linksize] = '\0'; 57387c478bd9Sstevel@tonic-gate 573994c894bbSVikram Hegde /* 574094c894bbSVikram Hegde * redirect alias path to current path 574194c894bbSVikram Hegde * devi_root_node is protected by lock_dev() 574294c894bbSVikram Hegde */ 574394c894bbSVikram Hegde contents = di_alias2curr(devi_root_node, linkbuf); 574494c894bbSVikram Hegde 57457c478bd9Sstevel@tonic-gate /* 57467c478bd9Sstevel@tonic-gate * the following just points linkptr to the root of the /devices 57477c478bd9Sstevel@tonic-gate * node if it is a minor node, otherwise, to the first char of 57487c478bd9Sstevel@tonic-gate * linkbuf if it is a link. 57497c478bd9Sstevel@tonic-gate */ 575094c894bbSVikram Hegde (void) is_minor_node(contents, &linkptr); 57517c478bd9Sstevel@tonic-gate 57527c478bd9Sstevel@tonic-gate cmp_str = alloc_cmp_str(linkptr, &rules[index]); 57537c478bd9Sstevel@tonic-gate if (cmp_str == NULL) { 575494c894bbSVikram Hegde free(contents); 57557c478bd9Sstevel@tonic-gate return; 57567c478bd9Sstevel@tonic-gate } 57577c478bd9Sstevel@tonic-gate 57587c478bd9Sstevel@tonic-gate np = s_malloc(sizeof (numeral_t)); 57597c478bd9Sstevel@tonic-gate 57607c478bd9Sstevel@tonic-gate np->id = s_strdup(numeral_id); 57617c478bd9Sstevel@tonic-gate np->full_path = s_strdup(linkptr); 57627c478bd9Sstevel@tonic-gate np->rule_index = index; 57637c478bd9Sstevel@tonic-gate np->cmp_str = cmp_str; 57648d483882Smlf np->flags = 0; 57657c478bd9Sstevel@tonic-gate 57667c478bd9Sstevel@tonic-gate np->next = setp->headnumeral; 57677c478bd9Sstevel@tonic-gate setp->headnumeral = np; 576894c894bbSVikram Hegde 576994c894bbSVikram Hegde free(contents); 57707c478bd9Sstevel@tonic-gate } 57717c478bd9Sstevel@tonic-gate 57727c478bd9Sstevel@tonic-gate 57737c478bd9Sstevel@tonic-gate /* 57747c478bd9Sstevel@tonic-gate * This should be called either before or after granting access to a 57757c478bd9Sstevel@tonic-gate * command line version of devfsadm running, since it may have changed 57767c478bd9Sstevel@tonic-gate * the state of /dev. It forces future enumerate calls to re-build 57777c478bd9Sstevel@tonic-gate * cached information from /dev. 57787c478bd9Sstevel@tonic-gate */ 57797c478bd9Sstevel@tonic-gate void 57807c478bd9Sstevel@tonic-gate invalidate_enumerate_cache(void) 57817c478bd9Sstevel@tonic-gate { 57827c478bd9Sstevel@tonic-gate numeral_set_t *setp; 57837c478bd9Sstevel@tonic-gate numeral_set_t *savedsetp; 57847c478bd9Sstevel@tonic-gate numeral_t *savednumset; 57857c478bd9Sstevel@tonic-gate numeral_t *numset; 57867c478bd9Sstevel@tonic-gate int i; 57877c478bd9Sstevel@tonic-gate 57887c478bd9Sstevel@tonic-gate for (setp = head_numeral_set; setp != NULL; ) { 57897c478bd9Sstevel@tonic-gate /* 57907c478bd9Sstevel@tonic-gate * check all regexp's passed in function against 57917c478bd9Sstevel@tonic-gate * those in cached set. 57927c478bd9Sstevel@tonic-gate */ 57937c478bd9Sstevel@tonic-gate 57947c478bd9Sstevel@tonic-gate savedsetp = setp; 57957c478bd9Sstevel@tonic-gate setp = setp->next; 57967c478bd9Sstevel@tonic-gate 57977c478bd9Sstevel@tonic-gate for (i = 0; i < savedsetp->re_count; i++) { 57987c478bd9Sstevel@tonic-gate free(savedsetp->re[i]); 57997c478bd9Sstevel@tonic-gate } 58007c478bd9Sstevel@tonic-gate free(savedsetp->re); 58017c478bd9Sstevel@tonic-gate 58027c478bd9Sstevel@tonic-gate for (numset = savedsetp->headnumeral; numset != NULL; ) { 58037c478bd9Sstevel@tonic-gate savednumset = numset; 58047c478bd9Sstevel@tonic-gate numset = numset->next; 58057c478bd9Sstevel@tonic-gate assert(savednumset->rule_index < savedsetp->re_count); 58067c478bd9Sstevel@tonic-gate free(savednumset->id); 58077c478bd9Sstevel@tonic-gate free(savednumset->full_path); 58087c478bd9Sstevel@tonic-gate free(savednumset->cmp_str); 58097c478bd9Sstevel@tonic-gate free(savednumset); 58107c478bd9Sstevel@tonic-gate } 58117c478bd9Sstevel@tonic-gate free(savedsetp); 58127c478bd9Sstevel@tonic-gate } 58137c478bd9Sstevel@tonic-gate head_numeral_set = NULL; 58147c478bd9Sstevel@tonic-gate } 58157c478bd9Sstevel@tonic-gate 58167c478bd9Sstevel@tonic-gate /* 58177c478bd9Sstevel@tonic-gate * Copies over links from /dev to <root>/dev and device special files in 58187c478bd9Sstevel@tonic-gate * /devices to <root>/devices, preserving the existing file modes. If 58197c478bd9Sstevel@tonic-gate * the link or special file already exists on <root>, skip the copy. (it 58207c478bd9Sstevel@tonic-gate * would exist only if a package hard coded it there, so assume package 58217c478bd9Sstevel@tonic-gate * knows best?). Use /etc/name_to_major and <root>/etc/name_to_major to 58227c478bd9Sstevel@tonic-gate * make translations for major numbers on device special files. No need to 58237c478bd9Sstevel@tonic-gate * make a translation on minor_perm since if the file was created in the 58247c478bd9Sstevel@tonic-gate * miniroot then it would presumably have the same minor_perm entry in 58257c478bd9Sstevel@tonic-gate * <root>/etc/minor_perm. To be used only by install. 58267c478bd9Sstevel@tonic-gate */ 58277c478bd9Sstevel@tonic-gate int 58287c478bd9Sstevel@tonic-gate devfsadm_copy(void) 58297c478bd9Sstevel@tonic-gate { 58307c478bd9Sstevel@tonic-gate char filename[PATH_MAX + 1]; 58317c478bd9Sstevel@tonic-gate 58327c478bd9Sstevel@tonic-gate /* load the installed root's name_to_major for translations */ 58337c478bd9Sstevel@tonic-gate (void) snprintf(filename, sizeof (filename), "%s%s", root_dir, 58347c478bd9Sstevel@tonic-gate NAME_TO_MAJOR); 58357c478bd9Sstevel@tonic-gate if (load_n2m_table(filename) == DEVFSADM_FAILURE) { 58367c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 58377c478bd9Sstevel@tonic-gate } 58387c478bd9Sstevel@tonic-gate 58397c478bd9Sstevel@tonic-gate /* Copy /dev to target disk. No need to copy /devices with devfs */ 58407c478bd9Sstevel@tonic-gate (void) nftw(DEV, devfsadm_copy_file, 20, FTW_PHYS); 58417c478bd9Sstevel@tonic-gate 58427c478bd9Sstevel@tonic-gate /* Let install handle copying over path_to_inst */ 58437c478bd9Sstevel@tonic-gate 58447c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 58457c478bd9Sstevel@tonic-gate } 58467c478bd9Sstevel@tonic-gate 58477c478bd9Sstevel@tonic-gate /* 58487c478bd9Sstevel@tonic-gate * This function copies links, dirs, and device special files. 58497c478bd9Sstevel@tonic-gate * Note that it always returns DEVFSADM_SUCCESS, so that nftw doesn't 58507c478bd9Sstevel@tonic-gate * abort. 58517c478bd9Sstevel@tonic-gate */ 58527c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 58537c478bd9Sstevel@tonic-gate static int 58547c478bd9Sstevel@tonic-gate devfsadm_copy_file(const char *file, const struct stat *stat, 5855406fc510SToomas Soome int flags, struct FTW *ftw) 58567c478bd9Sstevel@tonic-gate { 58577c478bd9Sstevel@tonic-gate struct stat sp; 58587c478bd9Sstevel@tonic-gate dev_t newdev; 58597c478bd9Sstevel@tonic-gate char newfile[PATH_MAX + 1]; 58607c478bd9Sstevel@tonic-gate char linkcontents[PATH_MAX + 1]; 58617c478bd9Sstevel@tonic-gate int bytes; 58627c478bd9Sstevel@tonic-gate const char *fcn = "devfsadm_copy_file"; 58637c478bd9Sstevel@tonic-gate 58647c478bd9Sstevel@tonic-gate (void) strcpy(newfile, root_dir); 58657c478bd9Sstevel@tonic-gate (void) strcat(newfile, "/"); 58667c478bd9Sstevel@tonic-gate (void) strcat(newfile, file); 58677c478bd9Sstevel@tonic-gate 58687c478bd9Sstevel@tonic-gate if (lstat(newfile, &sp) == 0) { 58697c478bd9Sstevel@tonic-gate /* newfile already exists, so no need to continue */ 58707c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 58717c478bd9Sstevel@tonic-gate } 58727c478bd9Sstevel@tonic-gate 58737c478bd9Sstevel@tonic-gate if (((stat->st_mode & S_IFMT) == S_IFBLK) || 58747c478bd9Sstevel@tonic-gate ((stat->st_mode & S_IFMT) == S_IFCHR)) { 58757c478bd9Sstevel@tonic-gate if (translate_major(stat->st_rdev, &newdev) == 58767c478bd9Sstevel@tonic-gate DEVFSADM_FAILURE) { 58777c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 58787c478bd9Sstevel@tonic-gate } 58797c478bd9Sstevel@tonic-gate if (mknod(newfile, stat->st_mode, newdev) == -1) { 58807c478bd9Sstevel@tonic-gate err_print(MKNOD_FAILED, newfile, strerror(errno)); 58817c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 58827c478bd9Sstevel@tonic-gate } 58837c478bd9Sstevel@tonic-gate } else if ((stat->st_mode & S_IFMT) == S_IFDIR) { 58847c478bd9Sstevel@tonic-gate if (mknod(newfile, stat->st_mode, 0) == -1) { 58857c478bd9Sstevel@tonic-gate err_print(MKNOD_FAILED, newfile, strerror(errno)); 58867c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 58877c478bd9Sstevel@tonic-gate } 58887c478bd9Sstevel@tonic-gate } else if ((stat->st_mode & S_IFMT) == S_IFLNK) { 588994c894bbSVikram Hegde /* 589094c894bbSVikram Hegde * No need to redirect alias paths. We want a 589194c894bbSVikram Hegde * true copy. The system on first boot after install 589294c894bbSVikram Hegde * will redirect paths 589394c894bbSVikram Hegde */ 58947c478bd9Sstevel@tonic-gate if ((bytes = readlink(file, linkcontents, PATH_MAX)) == -1) { 58957c478bd9Sstevel@tonic-gate err_print(READLINK_FAILED, fcn, file, strerror(errno)); 58967c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 58977c478bd9Sstevel@tonic-gate } 58987c478bd9Sstevel@tonic-gate linkcontents[bytes] = '\0'; 58997c478bd9Sstevel@tonic-gate if (symlink(linkcontents, newfile) == -1) { 59007c478bd9Sstevel@tonic-gate err_print(SYMLINK_FAILED, newfile, newfile, 59010a653502Swroche strerror(errno)); 59027c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 59037c478bd9Sstevel@tonic-gate } 59047c478bd9Sstevel@tonic-gate } 59057c478bd9Sstevel@tonic-gate 59067c478bd9Sstevel@tonic-gate (void) lchown(newfile, stat->st_uid, stat->st_gid); 59077c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 59087c478bd9Sstevel@tonic-gate } 59097c478bd9Sstevel@tonic-gate 59107c478bd9Sstevel@tonic-gate /* 59117c478bd9Sstevel@tonic-gate * Given a dev_t from the running kernel, return the new_dev_t 59127c478bd9Sstevel@tonic-gate * by translating to the major number found on the installed 59137c478bd9Sstevel@tonic-gate * target's root name_to_major file. 59147c478bd9Sstevel@tonic-gate */ 59157c478bd9Sstevel@tonic-gate static int 59167c478bd9Sstevel@tonic-gate translate_major(dev_t old_dev, dev_t *new_dev) 59177c478bd9Sstevel@tonic-gate { 59187c478bd9Sstevel@tonic-gate major_t oldmajor; 59197c478bd9Sstevel@tonic-gate major_t newmajor; 59207c478bd9Sstevel@tonic-gate minor_t oldminor; 59217c478bd9Sstevel@tonic-gate minor_t newminor; 59227c478bd9Sstevel@tonic-gate char cdriver[FILENAME_MAX + 1]; 59237c478bd9Sstevel@tonic-gate char driver[FILENAME_MAX + 1]; 59247c478bd9Sstevel@tonic-gate char *fcn = "translate_major: "; 59257c478bd9Sstevel@tonic-gate 59267c478bd9Sstevel@tonic-gate oldmajor = major(old_dev); 59270a653502Swroche if (modctl(MODGETNAME, driver, sizeof (driver), &oldmajor) != 0) { 59287c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 59297c478bd9Sstevel@tonic-gate } 59307c478bd9Sstevel@tonic-gate 59317c478bd9Sstevel@tonic-gate if (strcmp(driver, "clone") != 0) { 59327c478bd9Sstevel@tonic-gate /* non-clone case */ 59337c478bd9Sstevel@tonic-gate 59347c478bd9Sstevel@tonic-gate /* look up major number is target's name2major */ 59357c478bd9Sstevel@tonic-gate if (get_major_no(driver, &newmajor) == DEVFSADM_FAILURE) { 59367c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 59377c478bd9Sstevel@tonic-gate } 59387c478bd9Sstevel@tonic-gate 59397c478bd9Sstevel@tonic-gate *new_dev = makedev(newmajor, minor(old_dev)); 59407c478bd9Sstevel@tonic-gate if (old_dev != *new_dev) { 59417c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "%sdriver: %s old: %lu,%lu " 59420a653502Swroche "new: %lu,%lu\n", fcn, driver, major(old_dev), 59430a653502Swroche minor(old_dev), major(*new_dev), minor(*new_dev)); 59447c478bd9Sstevel@tonic-gate } 59457c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 59467c478bd9Sstevel@tonic-gate } else { 59477c478bd9Sstevel@tonic-gate /* 59487c478bd9Sstevel@tonic-gate * The clone is a special case. Look at its minor 59497c478bd9Sstevel@tonic-gate * number since it is the major number of the real driver. 59507c478bd9Sstevel@tonic-gate */ 59517c478bd9Sstevel@tonic-gate if (get_major_no(driver, &newmajor) == DEVFSADM_FAILURE) { 59527c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 59537c478bd9Sstevel@tonic-gate } 59547c478bd9Sstevel@tonic-gate 59557c478bd9Sstevel@tonic-gate oldminor = minor(old_dev); 59567c478bd9Sstevel@tonic-gate if (modctl(MODGETNAME, cdriver, sizeof (cdriver), 59570a653502Swroche &oldminor) != 0) { 59587c478bd9Sstevel@tonic-gate err_print(MODGETNAME_FAILED, oldminor); 59597c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 59607c478bd9Sstevel@tonic-gate } 59617c478bd9Sstevel@tonic-gate 59627c478bd9Sstevel@tonic-gate if (get_major_no(cdriver, &newminor) == DEVFSADM_FAILURE) { 59637c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 59647c478bd9Sstevel@tonic-gate } 59657c478bd9Sstevel@tonic-gate 59667c478bd9Sstevel@tonic-gate *new_dev = makedev(newmajor, newminor); 59677c478bd9Sstevel@tonic-gate if (old_dev != *new_dev) { 59687c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "%sdriver: %s old: " 59690a653502Swroche "%lu,%lu new: %lu,%lu\n", fcn, driver, 59700a653502Swroche major(old_dev), minor(old_dev), 59710a653502Swroche major(*new_dev), minor(*new_dev)); 59727c478bd9Sstevel@tonic-gate } 59737c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 59747c478bd9Sstevel@tonic-gate } 59757c478bd9Sstevel@tonic-gate } 59767c478bd9Sstevel@tonic-gate 59777c478bd9Sstevel@tonic-gate /* 59787c478bd9Sstevel@tonic-gate * 59797c478bd9Sstevel@tonic-gate * Find the major number for driver, searching the n2m_list that was 59807c478bd9Sstevel@tonic-gate * built in load_n2m_table(). 59817c478bd9Sstevel@tonic-gate */ 59827c478bd9Sstevel@tonic-gate static int 59837c478bd9Sstevel@tonic-gate get_major_no(char *driver, major_t *major) 59847c478bd9Sstevel@tonic-gate { 59857c478bd9Sstevel@tonic-gate n2m_t *ptr; 59867c478bd9Sstevel@tonic-gate 59877c478bd9Sstevel@tonic-gate for (ptr = n2m_list; ptr != NULL; ptr = ptr->next) { 59887c478bd9Sstevel@tonic-gate if (strcmp(ptr->driver, driver) == 0) { 59897c478bd9Sstevel@tonic-gate *major = ptr->major; 59907c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 59917c478bd9Sstevel@tonic-gate } 59927c478bd9Sstevel@tonic-gate } 59937c478bd9Sstevel@tonic-gate err_print(FIND_MAJOR_FAILED, driver); 59947c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 59957c478bd9Sstevel@tonic-gate } 59967c478bd9Sstevel@tonic-gate 59977c478bd9Sstevel@tonic-gate /* 59987c478bd9Sstevel@tonic-gate * Loads a name_to_major table into memory. Used only for suninstall's 59997c478bd9Sstevel@tonic-gate * private -R option to devfsadm, to translate major numbers from the 60007c478bd9Sstevel@tonic-gate * running to the installed target disk. 60017c478bd9Sstevel@tonic-gate */ 60027c478bd9Sstevel@tonic-gate static int 60037c478bd9Sstevel@tonic-gate load_n2m_table(char *file) 60047c478bd9Sstevel@tonic-gate { 60057c478bd9Sstevel@tonic-gate FILE *fp; 60061ca93273Seota char line[1024], *cp; 60077c478bd9Sstevel@tonic-gate char driver[PATH_MAX + 1]; 60087c478bd9Sstevel@tonic-gate major_t major; 60097c478bd9Sstevel@tonic-gate n2m_t *ptr; 60107c478bd9Sstevel@tonic-gate int ln = 0; 60117c478bd9Sstevel@tonic-gate 60127c478bd9Sstevel@tonic-gate if ((fp = fopen(file, "r")) == NULL) { 60137c478bd9Sstevel@tonic-gate err_print(FOPEN_FAILED, file, strerror(errno)); 60147c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 60157c478bd9Sstevel@tonic-gate } 60167c478bd9Sstevel@tonic-gate 60177c478bd9Sstevel@tonic-gate while (fgets(line, sizeof (line), fp) != NULL) { 60187c478bd9Sstevel@tonic-gate ln++; 60191ca93273Seota /* cut off comments starting with '#' */ 60201ca93273Seota if ((cp = strchr(line, '#')) != NULL) 60211ca93273Seota *cp = '\0'; 60221ca93273Seota /* ignore comment or blank lines */ 60231ca93273Seota if (is_blank(line)) 60247c478bd9Sstevel@tonic-gate continue; 60251ca93273Seota /* sanity-check */ 60267c478bd9Sstevel@tonic-gate if (sscanf(line, "%1024s%lu", driver, &major) != 2) { 60277c478bd9Sstevel@tonic-gate err_print(IGNORING_LINE_IN, ln, file); 60287c478bd9Sstevel@tonic-gate continue; 60297c478bd9Sstevel@tonic-gate } 60307c478bd9Sstevel@tonic-gate ptr = (n2m_t *)s_malloc(sizeof (n2m_t)); 60317c478bd9Sstevel@tonic-gate ptr->major = major; 60327c478bd9Sstevel@tonic-gate ptr->driver = s_strdup(driver); 60337c478bd9Sstevel@tonic-gate ptr->next = n2m_list; 60347c478bd9Sstevel@tonic-gate n2m_list = ptr; 60357c478bd9Sstevel@tonic-gate } 60367c478bd9Sstevel@tonic-gate if (fclose(fp) == EOF) { 60377c478bd9Sstevel@tonic-gate err_print(FCLOSE_FAILED, file, strerror(errno)); 60387c478bd9Sstevel@tonic-gate } 60397c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 60407c478bd9Sstevel@tonic-gate } 60417c478bd9Sstevel@tonic-gate 60428d483882Smlf /* 60438d483882Smlf * Called at devfsadm startup to read the file /etc/dev/enumerate_reserved 60448d483882Smlf * Creates a linked list of devlinks from which reserved IDs can be derived 60458d483882Smlf */ 60468d483882Smlf static void 60478d483882Smlf read_enumerate_file(void) 60488d483882Smlf { 60498d483882Smlf FILE *fp; 60508d483882Smlf int linenum; 60518d483882Smlf char line[PATH_MAX+1]; 60528d483882Smlf enumerate_file_t *entry; 60538d483882Smlf struct stat current_sb; 60548d483882Smlf static struct stat cached_sb; 60558d483882Smlf static int cached = FALSE; 60568d483882Smlf 60578d483882Smlf assert(enumerate_file); 60588d483882Smlf 60598d483882Smlf if (stat(enumerate_file, ¤t_sb) == -1) { 60608d483882Smlf vprint(RSRV_MID, "No reserved file: %s\n", enumerate_file); 60618d483882Smlf cached = FALSE; 60628d483882Smlf if (enumerate_reserved != NULL) { 60638d483882Smlf vprint(RSRV_MID, "invalidating %s cache\n", 60648d483882Smlf enumerate_file); 60658d483882Smlf } 60668d483882Smlf while (enumerate_reserved != NULL) { 60678d483882Smlf entry = enumerate_reserved; 60688d483882Smlf enumerate_reserved = entry->er_next; 60698d483882Smlf free(entry->er_file); 60708d483882Smlf free(entry->er_id); 60718d483882Smlf free(entry); 60728d483882Smlf } 60738d483882Smlf return; 60748d483882Smlf } 60758d483882Smlf 60768d483882Smlf /* if already cached, check to see if it is still valid */ 60778d483882Smlf if (cached == TRUE) { 60788d483882Smlf 60798d483882Smlf if (current_sb.st_mtime == cached_sb.st_mtime) { 60808d483882Smlf vprint(RSRV_MID, "%s cache valid\n", enumerate_file); 60818d483882Smlf vprint(FILES_MID, "%s cache valid\n", enumerate_file); 60828d483882Smlf return; 60838d483882Smlf } 60848d483882Smlf 60858d483882Smlf vprint(RSRV_MID, "invalidating %s cache\n", enumerate_file); 60868d483882Smlf vprint(FILES_MID, "invalidating %s cache\n", enumerate_file); 60878d483882Smlf 60888d483882Smlf while (enumerate_reserved != NULL) { 60898d483882Smlf entry = enumerate_reserved; 60908d483882Smlf enumerate_reserved = entry->er_next; 60918d483882Smlf free(entry->er_file); 60928d483882Smlf free(entry->er_id); 60938d483882Smlf free(entry); 60948d483882Smlf } 60958d483882Smlf vprint(RSRV_MID, "Recaching file: %s\n", enumerate_file); 60968d483882Smlf } else { 60978d483882Smlf vprint(RSRV_MID, "Caching file (first time): %s\n", 60988d483882Smlf enumerate_file); 60998d483882Smlf cached = TRUE; 61008d483882Smlf } 61018d483882Smlf 61028d483882Smlf (void) stat(enumerate_file, &cached_sb); 61038d483882Smlf 61048d483882Smlf if ((fp = fopen(enumerate_file, "r")) == NULL) { 61058d483882Smlf err_print(FOPEN_FAILED, enumerate_file, strerror(errno)); 61068d483882Smlf return; 61078d483882Smlf } 61088d483882Smlf 61098d483882Smlf vprint(RSRV_MID, "Reading reserve file: %s\n", enumerate_file); 61108d483882Smlf linenum = 0; 61118d483882Smlf while (fgets(line, sizeof (line), fp) != NULL) { 61128d483882Smlf char *cp, *ncp; 61138d483882Smlf 61148d483882Smlf linenum++; 61158d483882Smlf 61168d483882Smlf /* remove newline */ 61178d483882Smlf cp = strchr(line, '\n'); 61188d483882Smlf if (cp) 61198d483882Smlf *cp = '\0'; 61208d483882Smlf 61210a653502Swroche vprint(RSRV_MID, "Reserve file: line %d: %s\n", linenum, line); 61228d483882Smlf 61238d483882Smlf /* skip over space and tab */ 61240a653502Swroche for (cp = line; *cp == ' ' || *cp == '\t'; cp++) 61250a653502Swroche ; 61268d483882Smlf 61278d483882Smlf if (*cp == '\0' || *cp == '#') { 61288d483882Smlf vprint(RSRV_MID, "Skipping line: '%s'\n", line); 61298d483882Smlf continue; /* blank line or comment line */ 61308d483882Smlf } 61318d483882Smlf 61328d483882Smlf ncp = cp; 61338d483882Smlf 61348d483882Smlf /* delete trailing blanks */ 61350a653502Swroche for (; *cp != ' ' && *cp != '\t' && *cp != '\0'; cp++) 61360a653502Swroche ; 61378d483882Smlf *cp = '\0'; 61388d483882Smlf 61398d483882Smlf entry = s_zalloc(sizeof (enumerate_file_t)); 61408d483882Smlf entry->er_file = s_strdup(ncp); 61418d483882Smlf entry->er_id = NULL; 61428d483882Smlf entry->er_next = enumerate_reserved; 61438d483882Smlf enumerate_reserved = entry; 61448d483882Smlf } 61458d483882Smlf 61468d483882Smlf if (fclose(fp) == EOF) { 61478d483882Smlf err_print(FCLOSE_FAILED, enumerate_file, strerror(errno)); 61488d483882Smlf } 61498d483882Smlf } 61508d483882Smlf 61517c478bd9Sstevel@tonic-gate /* 61527c478bd9Sstevel@tonic-gate * Called at devfsadm startup to read in the devlink.tab file. Creates 61537c478bd9Sstevel@tonic-gate * a linked list of devlinktab_list structures which will be 61547c478bd9Sstevel@tonic-gate * searched for every minor node. 61557c478bd9Sstevel@tonic-gate */ 61567c478bd9Sstevel@tonic-gate static void 61577c478bd9Sstevel@tonic-gate read_devlinktab_file(void) 61587c478bd9Sstevel@tonic-gate { 61597c478bd9Sstevel@tonic-gate devlinktab_list_t *headp = NULL; 61607c478bd9Sstevel@tonic-gate devlinktab_list_t *entryp; 61617c478bd9Sstevel@tonic-gate devlinktab_list_t **previous; 61627c478bd9Sstevel@tonic-gate devlinktab_list_t *save; 61631ca93273Seota char line[MAX_DEVLINK_LINE], *cp; 61647c478bd9Sstevel@tonic-gate char *selector; 61657c478bd9Sstevel@tonic-gate char *p_link; 61667c478bd9Sstevel@tonic-gate char *s_link; 61677c478bd9Sstevel@tonic-gate FILE *fp; 61687c478bd9Sstevel@tonic-gate int i; 61697c478bd9Sstevel@tonic-gate static struct stat cached_sb; 61707c478bd9Sstevel@tonic-gate struct stat current_sb; 61717c478bd9Sstevel@tonic-gate static int cached = FALSE; 61727c478bd9Sstevel@tonic-gate 61737c478bd9Sstevel@tonic-gate if (devlinktab_file == NULL) { 61747c478bd9Sstevel@tonic-gate return; 61757c478bd9Sstevel@tonic-gate } 61767c478bd9Sstevel@tonic-gate 61777c478bd9Sstevel@tonic-gate (void) stat(devlinktab_file, ¤t_sb); 61787c478bd9Sstevel@tonic-gate 61797c478bd9Sstevel@tonic-gate /* if already cached, check to see if it is still valid */ 61807c478bd9Sstevel@tonic-gate if (cached == TRUE) { 61817c478bd9Sstevel@tonic-gate 61827c478bd9Sstevel@tonic-gate if (current_sb.st_mtime == cached_sb.st_mtime) { 61837c478bd9Sstevel@tonic-gate vprint(FILES_MID, "%s cache valid\n", devlinktab_file); 61847c478bd9Sstevel@tonic-gate return; 61857c478bd9Sstevel@tonic-gate } 61867c478bd9Sstevel@tonic-gate 61877c478bd9Sstevel@tonic-gate vprint(FILES_MID, "invalidating %s cache\n", devlinktab_file); 61887c478bd9Sstevel@tonic-gate 61897c478bd9Sstevel@tonic-gate while (devlinktab_list != NULL) { 61907c478bd9Sstevel@tonic-gate free_link_list(devlinktab_list->p_link); 61917c478bd9Sstevel@tonic-gate free_link_list(devlinktab_list->s_link); 61927c478bd9Sstevel@tonic-gate free_selector_list(devlinktab_list->selector); 61937c478bd9Sstevel@tonic-gate free(devlinktab_list->selector_pattern); 61947c478bd9Sstevel@tonic-gate free(devlinktab_list->p_link_pattern); 61957c478bd9Sstevel@tonic-gate if (devlinktab_list->s_link_pattern != NULL) { 61967c478bd9Sstevel@tonic-gate free(devlinktab_list->s_link_pattern); 61977c478bd9Sstevel@tonic-gate } 61987c478bd9Sstevel@tonic-gate save = devlinktab_list; 61997c478bd9Sstevel@tonic-gate devlinktab_list = devlinktab_list->next; 62007c478bd9Sstevel@tonic-gate free(save); 62017c478bd9Sstevel@tonic-gate } 62027c478bd9Sstevel@tonic-gate } else { 62037c478bd9Sstevel@tonic-gate cached = TRUE; 62047c478bd9Sstevel@tonic-gate } 62057c478bd9Sstevel@tonic-gate 62067c478bd9Sstevel@tonic-gate (void) stat(devlinktab_file, &cached_sb); 62077c478bd9Sstevel@tonic-gate 62087c478bd9Sstevel@tonic-gate if ((fp = fopen(devlinktab_file, "r")) == NULL) { 62097c478bd9Sstevel@tonic-gate err_print(FOPEN_FAILED, devlinktab_file, strerror(errno)); 62107c478bd9Sstevel@tonic-gate return; 62117c478bd9Sstevel@tonic-gate } 62127c478bd9Sstevel@tonic-gate 62137c478bd9Sstevel@tonic-gate previous = &headp; 62147c478bd9Sstevel@tonic-gate 62157c478bd9Sstevel@tonic-gate while (fgets(line, sizeof (line), fp) != NULL) { 62167c478bd9Sstevel@tonic-gate devlinktab_line++; 62177c478bd9Sstevel@tonic-gate i = strlen(line); 62187c478bd9Sstevel@tonic-gate if (line[i-1] == NEWLINE) { 62197c478bd9Sstevel@tonic-gate line[i-1] = '\0'; 62207c478bd9Sstevel@tonic-gate } else if (i == sizeof (line-1)) { 62217c478bd9Sstevel@tonic-gate err_print(LINE_TOO_LONG, devlinktab_line, 62227c478bd9Sstevel@tonic-gate devlinktab_file, sizeof (line)-1); 62230a653502Swroche while (((i = getc(fp)) != '\n') && (i != EOF)) 62240a653502Swroche ; 62257c478bd9Sstevel@tonic-gate continue; 62267c478bd9Sstevel@tonic-gate } 62277c478bd9Sstevel@tonic-gate 62281ca93273Seota /* cut off comments starting with '#' */ 62291ca93273Seota if ((cp = strchr(line, '#')) != NULL) 62301ca93273Seota *cp = '\0'; 62311ca93273Seota /* ignore comment or blank lines */ 62321ca93273Seota if (is_blank(line)) 62337c478bd9Sstevel@tonic-gate continue; 62347c478bd9Sstevel@tonic-gate 62357c478bd9Sstevel@tonic-gate vprint(DEVLINK_MID, "table: %s line %d: '%s'\n", 62360a653502Swroche devlinktab_file, devlinktab_line, line); 62377c478bd9Sstevel@tonic-gate 62387c478bd9Sstevel@tonic-gate /* break each entry into fields. s_link may be NULL */ 62397c478bd9Sstevel@tonic-gate if (split_devlinktab_entry(line, &selector, &p_link, 62407c478bd9Sstevel@tonic-gate &s_link) == DEVFSADM_FAILURE) { 62417c478bd9Sstevel@tonic-gate vprint(DEVLINK_MID, "split_entry returns failure\n"); 62427c478bd9Sstevel@tonic-gate continue; 62437c478bd9Sstevel@tonic-gate } else { 62447c478bd9Sstevel@tonic-gate vprint(DEVLINK_MID, "split_entry selector='%s' " 62450a653502Swroche "p_link='%s' s_link='%s'\n\n", selector, 62460a653502Swroche p_link, (s_link == NULL) ? "" : s_link); 62477c478bd9Sstevel@tonic-gate } 62487c478bd9Sstevel@tonic-gate 62490a653502Swroche entryp = 62500a653502Swroche (devlinktab_list_t *)s_malloc(sizeof (devlinktab_list_t)); 62517c478bd9Sstevel@tonic-gate 62527c478bd9Sstevel@tonic-gate entryp->line_number = devlinktab_line; 62537c478bd9Sstevel@tonic-gate 62540a653502Swroche if ((entryp->selector = create_selector_list(selector)) 62550a653502Swroche == NULL) { 62567c478bd9Sstevel@tonic-gate free(entryp); 62577c478bd9Sstevel@tonic-gate continue; 62587c478bd9Sstevel@tonic-gate } 62597c478bd9Sstevel@tonic-gate entryp->selector_pattern = s_strdup(selector); 62607c478bd9Sstevel@tonic-gate 62617c478bd9Sstevel@tonic-gate if ((entryp->p_link = create_link_list(p_link)) == NULL) { 62627c478bd9Sstevel@tonic-gate free_selector_list(entryp->selector); 62637c478bd9Sstevel@tonic-gate free(entryp->selector_pattern); 62647c478bd9Sstevel@tonic-gate free(entryp); 62657c478bd9Sstevel@tonic-gate continue; 62667c478bd9Sstevel@tonic-gate } 62677c478bd9Sstevel@tonic-gate 62687c478bd9Sstevel@tonic-gate entryp->p_link_pattern = s_strdup(p_link); 62697c478bd9Sstevel@tonic-gate 62707c478bd9Sstevel@tonic-gate if (s_link != NULL) { 62717c478bd9Sstevel@tonic-gate if ((entryp->s_link = 62727c478bd9Sstevel@tonic-gate create_link_list(s_link)) == NULL) { 62737c478bd9Sstevel@tonic-gate free_selector_list(entryp->selector); 62747c478bd9Sstevel@tonic-gate free_link_list(entryp->p_link); 62757c478bd9Sstevel@tonic-gate free(entryp->selector_pattern); 62767c478bd9Sstevel@tonic-gate free(entryp->p_link_pattern); 62777c478bd9Sstevel@tonic-gate free(entryp); 62787c478bd9Sstevel@tonic-gate continue; 62797c478bd9Sstevel@tonic-gate } 62800a653502Swroche entryp->s_link_pattern = s_strdup(s_link); 62817c478bd9Sstevel@tonic-gate } else { 62827c478bd9Sstevel@tonic-gate entryp->s_link = NULL; 62837c478bd9Sstevel@tonic-gate entryp->s_link_pattern = NULL; 62847c478bd9Sstevel@tonic-gate 62857c478bd9Sstevel@tonic-gate } 62867c478bd9Sstevel@tonic-gate 62877c478bd9Sstevel@tonic-gate /* append to end of list */ 62887c478bd9Sstevel@tonic-gate 62897c478bd9Sstevel@tonic-gate entryp->next = NULL; 62907c478bd9Sstevel@tonic-gate *previous = entryp; 62917c478bd9Sstevel@tonic-gate previous = &(entryp->next); 62927c478bd9Sstevel@tonic-gate } 62937c478bd9Sstevel@tonic-gate if (fclose(fp) == EOF) { 62947c478bd9Sstevel@tonic-gate err_print(FCLOSE_FAILED, devlinktab_file, strerror(errno)); 62957c478bd9Sstevel@tonic-gate } 62967c478bd9Sstevel@tonic-gate devlinktab_list = headp; 62977c478bd9Sstevel@tonic-gate } 62987c478bd9Sstevel@tonic-gate 62997c478bd9Sstevel@tonic-gate /* 63007c478bd9Sstevel@tonic-gate * 63017c478bd9Sstevel@tonic-gate * For a single line entry in devlink.tab, split the line into fields 63027c478bd9Sstevel@tonic-gate * selector, p_link, and an optionally s_link. If s_link field is not 63037c478bd9Sstevel@tonic-gate * present, then return NULL in s_link (not NULL string). 63047c478bd9Sstevel@tonic-gate */ 63057c478bd9Sstevel@tonic-gate static int 63067c478bd9Sstevel@tonic-gate split_devlinktab_entry(char *entry, char **selector, char **p_link, 6307406fc510SToomas Soome char **s_link) 63087c478bd9Sstevel@tonic-gate { 63097c478bd9Sstevel@tonic-gate char *tab; 63107c478bd9Sstevel@tonic-gate 63117c478bd9Sstevel@tonic-gate *selector = entry; 63127c478bd9Sstevel@tonic-gate 63137c478bd9Sstevel@tonic-gate if ((tab = strchr(entry, TAB)) != NULL) { 63147c478bd9Sstevel@tonic-gate *tab = '\0'; 63157c478bd9Sstevel@tonic-gate *p_link = ++tab; 63167c478bd9Sstevel@tonic-gate } else { 63177c478bd9Sstevel@tonic-gate err_print(MISSING_TAB, devlinktab_line, devlinktab_file); 63187c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 63197c478bd9Sstevel@tonic-gate } 63207c478bd9Sstevel@tonic-gate 63219813518fSToomas Soome if (**p_link == '\0') { 63227c478bd9Sstevel@tonic-gate err_print(MISSING_DEVNAME, devlinktab_line, devlinktab_file); 63237c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 63247c478bd9Sstevel@tonic-gate } 63257c478bd9Sstevel@tonic-gate 63267c478bd9Sstevel@tonic-gate if ((tab = strchr(*p_link, TAB)) != NULL) { 63277c478bd9Sstevel@tonic-gate *tab = '\0'; 63287c478bd9Sstevel@tonic-gate *s_link = ++tab; 63297c478bd9Sstevel@tonic-gate if (strchr(*s_link, TAB) != NULL) { 63307c478bd9Sstevel@tonic-gate err_print(TOO_MANY_FIELDS, devlinktab_line, 63310a653502Swroche devlinktab_file); 63327c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 63337c478bd9Sstevel@tonic-gate } 63347c478bd9Sstevel@tonic-gate } else { 63357c478bd9Sstevel@tonic-gate *s_link = NULL; 63367c478bd9Sstevel@tonic-gate } 63377c478bd9Sstevel@tonic-gate 63387c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 63397c478bd9Sstevel@tonic-gate } 63407c478bd9Sstevel@tonic-gate 63417c478bd9Sstevel@tonic-gate /* 63427c478bd9Sstevel@tonic-gate * For a given devfs_spec field, for each element in the field, add it to 63437c478bd9Sstevel@tonic-gate * a linked list of devfs_spec structures. Return the linked list in 63447c478bd9Sstevel@tonic-gate * devfs_spec_list. 63457c478bd9Sstevel@tonic-gate */ 63467c478bd9Sstevel@tonic-gate static selector_list_t * 63477c478bd9Sstevel@tonic-gate create_selector_list(char *selector) 63487c478bd9Sstevel@tonic-gate { 63490a653502Swroche char *key; 63500a653502Swroche char *val; 63510a653502Swroche int error = FALSE; 63520a653502Swroche selector_list_t *head_selector_list = NULL; 63530a653502Swroche selector_list_t *selector_list; 63540a653502Swroche 63550a653502Swroche /* parse_devfs_spec splits the next field into keyword & value */ 6356a3ab7e85SToomas Soome while ((*selector != '\0') && (error == FALSE)) { 63570a653502Swroche if (parse_selector(&selector, &key, &val) == DEVFSADM_FAILURE) { 63580a653502Swroche error = TRUE; 63590a653502Swroche break; 63600a653502Swroche } else { 63610a653502Swroche selector_list = (selector_list_t *) 63620a653502Swroche s_malloc(sizeof (selector_list_t)); 63630a653502Swroche if (strcmp(NAME_S, key) == 0) { 63640a653502Swroche selector_list->key = NAME; 63650a653502Swroche } else if (strcmp(TYPE_S, key) == 0) { 63660a653502Swroche selector_list->key = TYPE; 63670a653502Swroche } else if (strncmp(ADDR_S, key, ADDR_S_LEN) == 0) { 63680a653502Swroche selector_list->key = ADDR; 63690a653502Swroche if (key[ADDR_S_LEN] == '\0') { 63700a653502Swroche selector_list->arg = 0; 63710a653502Swroche } else if (isdigit(key[ADDR_S_LEN]) != FALSE) { 63720a653502Swroche selector_list->arg = 63730a653502Swroche atoi(&key[ADDR_S_LEN]); 63740a653502Swroche } else { 63750a653502Swroche error = TRUE; 63760a653502Swroche free(selector_list); 63770a653502Swroche err_print(BADKEYWORD, key, 63780a653502Swroche devlinktab_line, devlinktab_file); 63790a653502Swroche break; 63800a653502Swroche } 63810a653502Swroche } else if (strncmp(MINOR_S, key, MINOR_S_LEN) == 0) { 63820a653502Swroche selector_list->key = MINOR; 63830a653502Swroche if (key[MINOR_S_LEN] == '\0') { 63840a653502Swroche selector_list->arg = 0; 63850a653502Swroche } else if (isdigit(key[MINOR_S_LEN]) != FALSE) { 63860a653502Swroche selector_list->arg = 63870a653502Swroche atoi(&key[MINOR_S_LEN]); 63880a653502Swroche } else { 63890a653502Swroche error = TRUE; 63900a653502Swroche free(selector_list); 63910a653502Swroche err_print(BADKEYWORD, key, 63920a653502Swroche devlinktab_line, devlinktab_file); 63930a653502Swroche break; 63940a653502Swroche } 63950a653502Swroche vprint(DEVLINK_MID, "MINOR = %s\n", val); 63960a653502Swroche } else { 63970a653502Swroche err_print(UNRECOGNIZED_KEY, key, 63980a653502Swroche devlinktab_line, devlinktab_file); 63990a653502Swroche error = TRUE; 64000a653502Swroche free(selector_list); 64010a653502Swroche break; 64020a653502Swroche } 64030a653502Swroche selector_list->val = s_strdup(val); 64040a653502Swroche selector_list->next = head_selector_list; 64050a653502Swroche head_selector_list = selector_list; 64060a653502Swroche vprint(DEVLINK_MID, "key='%s' val='%s' arg=%d\n", 64070a653502Swroche key, val, selector_list->arg); 64080a653502Swroche } 64090a653502Swroche } 64100a653502Swroche 64110a653502Swroche if ((error == FALSE) && (head_selector_list != NULL)) { 64120a653502Swroche return (head_selector_list); 64130a653502Swroche } else { 64140a653502Swroche /* parse failed. Free any allocated structs */ 64150a653502Swroche free_selector_list(head_selector_list); 64160a653502Swroche return (NULL); 64170a653502Swroche } 64187c478bd9Sstevel@tonic-gate } 64197c478bd9Sstevel@tonic-gate 64207c478bd9Sstevel@tonic-gate /* 64217c478bd9Sstevel@tonic-gate * Takes a semicolon separated list of selector elements and breaks up 64227c478bd9Sstevel@tonic-gate * into a keyword-value pair. semicolon and equal characters are 64237c478bd9Sstevel@tonic-gate * replaced with NULL's. On success, selector is updated to point to the 64247c478bd9Sstevel@tonic-gate * terminating NULL character terminating the keyword-value pair, and the 64257c478bd9Sstevel@tonic-gate * function returns DEVFSADM_SUCCESS. If there is a syntax error, 64267c478bd9Sstevel@tonic-gate * devfs_spec is not modified and function returns DEVFSADM_FAILURE. 64277c478bd9Sstevel@tonic-gate */ 64287c478bd9Sstevel@tonic-gate static int 64297c478bd9Sstevel@tonic-gate parse_selector(char **selector, char **key, char **val) 64307c478bd9Sstevel@tonic-gate { 64317c478bd9Sstevel@tonic-gate char *equal; 64327c478bd9Sstevel@tonic-gate char *semi_colon; 64337c478bd9Sstevel@tonic-gate 64347c478bd9Sstevel@tonic-gate *key = *selector; 64357c478bd9Sstevel@tonic-gate 64367c478bd9Sstevel@tonic-gate if ((equal = strchr(*key, '=')) != NULL) { 64377c478bd9Sstevel@tonic-gate *equal = '\0'; 64387c478bd9Sstevel@tonic-gate } else { 64397c478bd9Sstevel@tonic-gate err_print(MISSING_EQUAL, devlinktab_line, devlinktab_file); 64407c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 64417c478bd9Sstevel@tonic-gate } 64427c478bd9Sstevel@tonic-gate 64437c478bd9Sstevel@tonic-gate *val = ++equal; 64447c478bd9Sstevel@tonic-gate if ((semi_colon = strchr(equal, ';')) != NULL) { 64457c478bd9Sstevel@tonic-gate *semi_colon = '\0'; 64467c478bd9Sstevel@tonic-gate *selector = semi_colon + 1; 64477c478bd9Sstevel@tonic-gate } else { 64487c478bd9Sstevel@tonic-gate *selector = equal + strlen(equal); 64497c478bd9Sstevel@tonic-gate } 64507c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 64517c478bd9Sstevel@tonic-gate } 64527c478bd9Sstevel@tonic-gate 64537c478bd9Sstevel@tonic-gate /* 64547c478bd9Sstevel@tonic-gate * link is either the second or third field of devlink.tab. Parse link 64557c478bd9Sstevel@tonic-gate * into a linked list of devlink structures and return ptr to list. Each 64567c478bd9Sstevel@tonic-gate * list element is either a constant string, or one of the following 64577c478bd9Sstevel@tonic-gate * escape sequences: \M, \A, \N, or \D. The first three escape sequences 64587c478bd9Sstevel@tonic-gate * take a numerical argument. 64597c478bd9Sstevel@tonic-gate */ 64607c478bd9Sstevel@tonic-gate static link_list_t * 64617c478bd9Sstevel@tonic-gate create_link_list(char *link) 64627c478bd9Sstevel@tonic-gate { 64637c478bd9Sstevel@tonic-gate int x = 0; 64647c478bd9Sstevel@tonic-gate int error = FALSE; 64657c478bd9Sstevel@tonic-gate int counter_found = FALSE; 64667c478bd9Sstevel@tonic-gate link_list_t *head = NULL; 64677c478bd9Sstevel@tonic-gate link_list_t **ptr; 64687c478bd9Sstevel@tonic-gate link_list_t *link_list; 64697c478bd9Sstevel@tonic-gate char constant[MAX_DEVLINK_LINE]; 64707c478bd9Sstevel@tonic-gate char *error_str; 64717c478bd9Sstevel@tonic-gate 64727c478bd9Sstevel@tonic-gate if (link == NULL) { 64737c478bd9Sstevel@tonic-gate return (NULL); 64747c478bd9Sstevel@tonic-gate } 64757c478bd9Sstevel@tonic-gate 64767c478bd9Sstevel@tonic-gate while ((*link != '\0') && (error == FALSE)) { 64777c478bd9Sstevel@tonic-gate link_list = (link_list_t *)s_malloc(sizeof (link_list_t)); 64787c478bd9Sstevel@tonic-gate link_list->next = NULL; 64797c478bd9Sstevel@tonic-gate 64807c478bd9Sstevel@tonic-gate while ((*link != '\0') && (*link != '\\')) { 64817c478bd9Sstevel@tonic-gate /* a non-escaped string */ 64827c478bd9Sstevel@tonic-gate constant[x++] = *(link++); 64837c478bd9Sstevel@tonic-gate } 64847c478bd9Sstevel@tonic-gate if (x != 0) { 64857c478bd9Sstevel@tonic-gate constant[x] = '\0'; 64867c478bd9Sstevel@tonic-gate link_list->type = CONSTANT; 64877c478bd9Sstevel@tonic-gate link_list->constant = s_strdup(constant); 64887c478bd9Sstevel@tonic-gate x = 0; 64897c478bd9Sstevel@tonic-gate vprint(DEVLINK_MID, "CONSTANT FOUND %s\n", constant); 64907c478bd9Sstevel@tonic-gate } else { 64917c478bd9Sstevel@tonic-gate switch (*(++link)) { 64927c478bd9Sstevel@tonic-gate case 'M': 64937c478bd9Sstevel@tonic-gate link_list->type = MINOR; 64947c478bd9Sstevel@tonic-gate break; 64957c478bd9Sstevel@tonic-gate case 'A': 64967c478bd9Sstevel@tonic-gate link_list->type = ADDR; 64977c478bd9Sstevel@tonic-gate break; 64987c478bd9Sstevel@tonic-gate case 'N': 64997c478bd9Sstevel@tonic-gate if (counter_found == TRUE) { 65007c478bd9Sstevel@tonic-gate error = TRUE; 65010a653502Swroche error_str = 65020a653502Swroche "multiple counters not permitted"; 65037c478bd9Sstevel@tonic-gate free(link_list); 65047c478bd9Sstevel@tonic-gate } else { 65057c478bd9Sstevel@tonic-gate counter_found = TRUE; 65067c478bd9Sstevel@tonic-gate link_list->type = COUNTER; 65077c478bd9Sstevel@tonic-gate } 65087c478bd9Sstevel@tonic-gate break; 65097c478bd9Sstevel@tonic-gate case 'D': 65107c478bd9Sstevel@tonic-gate link_list->type = NAME; 65117c478bd9Sstevel@tonic-gate break; 65127c478bd9Sstevel@tonic-gate default: 65137c478bd9Sstevel@tonic-gate error = TRUE; 65147c478bd9Sstevel@tonic-gate free(link_list); 65157c478bd9Sstevel@tonic-gate error_str = "unrecognized escape sequence"; 65167c478bd9Sstevel@tonic-gate break; 65177c478bd9Sstevel@tonic-gate } 65187c478bd9Sstevel@tonic-gate if (*(link++) != 'D') { 65197c478bd9Sstevel@tonic-gate if (isdigit(*link) == FALSE) { 65207c478bd9Sstevel@tonic-gate error_str = "escape sequence must be " 65210a653502Swroche "followed by a digit\n"; 65227c478bd9Sstevel@tonic-gate error = TRUE; 65237c478bd9Sstevel@tonic-gate free(link_list); 65247c478bd9Sstevel@tonic-gate } else { 65257c478bd9Sstevel@tonic-gate link_list->arg = 65260a653502Swroche (int)strtoul(link, &link, 10); 65277c478bd9Sstevel@tonic-gate vprint(DEVLINK_MID, "link_list->arg = " 65280a653502Swroche "%d\n", link_list->arg); 65297c478bd9Sstevel@tonic-gate } 65307c478bd9Sstevel@tonic-gate } 65317c478bd9Sstevel@tonic-gate } 65327c478bd9Sstevel@tonic-gate /* append link_list struct to end of list */ 65337c478bd9Sstevel@tonic-gate if (error == FALSE) { 65340a653502Swroche for (ptr = &head; *ptr != NULL; ptr = &((*ptr)->next)) 65350a653502Swroche ; 65367c478bd9Sstevel@tonic-gate *ptr = link_list; 65377c478bd9Sstevel@tonic-gate } 65387c478bd9Sstevel@tonic-gate } 65397c478bd9Sstevel@tonic-gate 65407c478bd9Sstevel@tonic-gate if (error == FALSE) { 65417c478bd9Sstevel@tonic-gate return (head); 65427c478bd9Sstevel@tonic-gate } else { 65437c478bd9Sstevel@tonic-gate err_print(CONFIG_INCORRECT, devlinktab_line, devlinktab_file, 65447c478bd9Sstevel@tonic-gate error_str); 65457c478bd9Sstevel@tonic-gate free_link_list(head); 65467c478bd9Sstevel@tonic-gate return (NULL); 65477c478bd9Sstevel@tonic-gate } 65487c478bd9Sstevel@tonic-gate } 65497c478bd9Sstevel@tonic-gate 65507c478bd9Sstevel@tonic-gate /* 65517c478bd9Sstevel@tonic-gate * Called for each minor node devfsadm processes; for each minor node, 65527c478bd9Sstevel@tonic-gate * look for matches in the devlinktab_list list which was created on 65537c478bd9Sstevel@tonic-gate * startup read_devlinktab_file(). If there is a match, call build_links() 65547c478bd9Sstevel@tonic-gate * to build a logical devlink and a possible extra devlink. 65557c478bd9Sstevel@tonic-gate */ 65567c478bd9Sstevel@tonic-gate static int 65577c478bd9Sstevel@tonic-gate process_devlink_compat(di_minor_t minor, di_node_t node) 65587c478bd9Sstevel@tonic-gate { 65597c478bd9Sstevel@tonic-gate int link_built = FALSE; 65607c478bd9Sstevel@tonic-gate devlinktab_list_t *entry; 65617c478bd9Sstevel@tonic-gate char *nodetype; 65627c478bd9Sstevel@tonic-gate char *dev_path; 65637c478bd9Sstevel@tonic-gate 65647c478bd9Sstevel@tonic-gate if (devlinks_debug == TRUE) { 65657c478bd9Sstevel@tonic-gate nodetype = di_minor_nodetype(minor); 65667c478bd9Sstevel@tonic-gate assert(nodetype != NULL); 65677c478bd9Sstevel@tonic-gate if ((dev_path = di_devfs_path(node)) != NULL) { 65680a653502Swroche vprint(INFO_MID, "'%s' entry: %s:%s\n", 65690a653502Swroche nodetype, dev_path, 65700a653502Swroche di_minor_name(minor) ? di_minor_name(minor) : ""); 65717c478bd9Sstevel@tonic-gate di_devfs_path_free(dev_path); 65727c478bd9Sstevel@tonic-gate } 65737c478bd9Sstevel@tonic-gate 65747c478bd9Sstevel@tonic-gate } 65757c478bd9Sstevel@tonic-gate 65767c478bd9Sstevel@tonic-gate 65777c478bd9Sstevel@tonic-gate /* don't process devlink.tab if devfsadm invoked with -c <class> */ 65787c478bd9Sstevel@tonic-gate if (num_classes > 0) { 65797c478bd9Sstevel@tonic-gate return (FALSE); 65807c478bd9Sstevel@tonic-gate } 65817c478bd9Sstevel@tonic-gate 65827c478bd9Sstevel@tonic-gate for (entry = devlinktab_list; entry != NULL; entry = entry->next) { 65837c478bd9Sstevel@tonic-gate if (devlink_matches(entry, minor, node) == DEVFSADM_SUCCESS) { 65847c478bd9Sstevel@tonic-gate link_built = TRUE; 65857c478bd9Sstevel@tonic-gate (void) build_links(entry, minor, node); 65867c478bd9Sstevel@tonic-gate } 65877c478bd9Sstevel@tonic-gate } 65887c478bd9Sstevel@tonic-gate return (link_built); 65897c478bd9Sstevel@tonic-gate } 65907c478bd9Sstevel@tonic-gate 65917c478bd9Sstevel@tonic-gate /* 65927c478bd9Sstevel@tonic-gate * For a given devlink.tab devlinktab_list entry, see if the selector 65937c478bd9Sstevel@tonic-gate * field matches this minor node. If it does, return DEVFSADM_SUCCESS, 65947c478bd9Sstevel@tonic-gate * otherwise DEVFSADM_FAILURE. 65957c478bd9Sstevel@tonic-gate */ 65967c478bd9Sstevel@tonic-gate static int 65977c478bd9Sstevel@tonic-gate devlink_matches(devlinktab_list_t *entry, di_minor_t minor, di_node_t node) 65987c478bd9Sstevel@tonic-gate { 65997c478bd9Sstevel@tonic-gate selector_list_t *selector = entry->selector; 66007c478bd9Sstevel@tonic-gate char *addr; 66017c478bd9Sstevel@tonic-gate char *minor_name; 66027c478bd9Sstevel@tonic-gate char *node_type; 66037c478bd9Sstevel@tonic-gate 66047c478bd9Sstevel@tonic-gate for (; selector != NULL; selector = selector->next) { 66057c478bd9Sstevel@tonic-gate switch (selector->key) { 66067c478bd9Sstevel@tonic-gate case NAME: 66077c478bd9Sstevel@tonic-gate if (strcmp(di_node_name(node), selector->val) != 0) { 66087c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 66097c478bd9Sstevel@tonic-gate } 66107c478bd9Sstevel@tonic-gate break; 66117c478bd9Sstevel@tonic-gate case TYPE: 66127c478bd9Sstevel@tonic-gate node_type = di_minor_nodetype(minor); 66137c478bd9Sstevel@tonic-gate assert(node_type != NULL); 66147c478bd9Sstevel@tonic-gate if (strcmp(node_type, selector->val) != 0) { 66157c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 66167c478bd9Sstevel@tonic-gate } 66177c478bd9Sstevel@tonic-gate break; 66187c478bd9Sstevel@tonic-gate case ADDR: 66197c478bd9Sstevel@tonic-gate if ((addr = di_bus_addr(node)) == NULL) { 66207c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 66217c478bd9Sstevel@tonic-gate } 66227c478bd9Sstevel@tonic-gate if (selector->arg == 0) { 66237c478bd9Sstevel@tonic-gate if (strcmp(addr, selector->val) != 0) { 66247c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 66257c478bd9Sstevel@tonic-gate } 66267c478bd9Sstevel@tonic-gate } else { 66277c478bd9Sstevel@tonic-gate if (compare_field(addr, selector->val, 66287c478bd9Sstevel@tonic-gate selector->arg) == DEVFSADM_FAILURE) { 66297c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 66307c478bd9Sstevel@tonic-gate } 66317c478bd9Sstevel@tonic-gate } 66327c478bd9Sstevel@tonic-gate break; 66337c478bd9Sstevel@tonic-gate case MINOR: 66347c478bd9Sstevel@tonic-gate if ((minor_name = di_minor_name(minor)) == NULL) { 66357c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 66367c478bd9Sstevel@tonic-gate } 66377c478bd9Sstevel@tonic-gate if (selector->arg == 0) { 66387c478bd9Sstevel@tonic-gate if (strcmp(minor_name, selector->val) != 0) { 66397c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 66407c478bd9Sstevel@tonic-gate } 66417c478bd9Sstevel@tonic-gate } else { 66427c478bd9Sstevel@tonic-gate if (compare_field(minor_name, selector->val, 66430a653502Swroche selector->arg) == DEVFSADM_FAILURE) { 66447c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 66457c478bd9Sstevel@tonic-gate } 66467c478bd9Sstevel@tonic-gate } 66477c478bd9Sstevel@tonic-gate break; 66487c478bd9Sstevel@tonic-gate default: 66497c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 66507c478bd9Sstevel@tonic-gate } 66517c478bd9Sstevel@tonic-gate } 66527c478bd9Sstevel@tonic-gate 66537c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 66547c478bd9Sstevel@tonic-gate } 66557c478bd9Sstevel@tonic-gate 66567c478bd9Sstevel@tonic-gate /* 66577c478bd9Sstevel@tonic-gate * For the given minor node and devlinktab_list entry from devlink.tab, 66587c478bd9Sstevel@tonic-gate * build a logical dev link and a possible extra devlink. 66597c478bd9Sstevel@tonic-gate * Return DEVFSADM_SUCCESS if link is created, otherwise DEVFSADM_FAILURE. 66607c478bd9Sstevel@tonic-gate */ 66617c478bd9Sstevel@tonic-gate static int 66627c478bd9Sstevel@tonic-gate build_links(devlinktab_list_t *entry, di_minor_t minor, di_node_t node) 66637c478bd9Sstevel@tonic-gate { 66647c478bd9Sstevel@tonic-gate char secondary_link[PATH_MAX + 1]; 66657c478bd9Sstevel@tonic-gate char primary_link[PATH_MAX + 1]; 66667c478bd9Sstevel@tonic-gate char contents[PATH_MAX + 1]; 66677c478bd9Sstevel@tonic-gate char *dev_path; 66687c478bd9Sstevel@tonic-gate 66697c478bd9Sstevel@tonic-gate if ((dev_path = di_devfs_path(node)) == NULL) { 66707c478bd9Sstevel@tonic-gate err_print(DI_DEVFS_PATH_FAILED, strerror(errno)); 66717c478bd9Sstevel@tonic-gate devfsadm_exit(1); 6672537714daSvikram /*NOTREACHED*/ 66737c478bd9Sstevel@tonic-gate } 66747c478bd9Sstevel@tonic-gate (void) strcpy(contents, dev_path); 66757c478bd9Sstevel@tonic-gate di_devfs_path_free(dev_path); 66767c478bd9Sstevel@tonic-gate 66777c478bd9Sstevel@tonic-gate (void) strcat(contents, ":"); 66787c478bd9Sstevel@tonic-gate (void) strcat(contents, di_minor_name(minor)); 66797c478bd9Sstevel@tonic-gate 66807c478bd9Sstevel@tonic-gate if (construct_devlink(primary_link, entry->p_link, contents, 66810a653502Swroche minor, node, entry->p_link_pattern) == DEVFSADM_FAILURE) { 66827c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 66837c478bd9Sstevel@tonic-gate } 66847c478bd9Sstevel@tonic-gate (void) devfsadm_mklink(primary_link, node, minor, 0); 66857c478bd9Sstevel@tonic-gate 66867c478bd9Sstevel@tonic-gate if (entry->s_link == NULL) { 66877c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 66887c478bd9Sstevel@tonic-gate } 66897c478bd9Sstevel@tonic-gate 66900a653502Swroche if (construct_devlink(secondary_link, entry->s_link, primary_link, 66910a653502Swroche minor, node, entry->s_link_pattern) == DEVFSADM_FAILURE) { 66927c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 66937c478bd9Sstevel@tonic-gate } 66947c478bd9Sstevel@tonic-gate 66957c478bd9Sstevel@tonic-gate (void) devfsadm_secondary_link(secondary_link, primary_link, 0); 66967c478bd9Sstevel@tonic-gate 66977c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 66987c478bd9Sstevel@tonic-gate } 66997c478bd9Sstevel@tonic-gate 67007c478bd9Sstevel@tonic-gate /* 67017c478bd9Sstevel@tonic-gate * The counter rule for devlink.tab entries is implemented via 67027c478bd9Sstevel@tonic-gate * devfsadm_enumerate_int_start(). One of the arguments to this function 67037c478bd9Sstevel@tonic-gate * is a path, where each path component is treated as a regular expression. 67047c478bd9Sstevel@tonic-gate * For devlink.tab entries, this path regular expression is derived from 67057c478bd9Sstevel@tonic-gate * the devlink spec. get_anchored_re() accepts path regular expressions derived 67067c478bd9Sstevel@tonic-gate * from devlink.tab entries and inserts the anchors '^' and '$' at the beginning 67077c478bd9Sstevel@tonic-gate * and end respectively of each path component. This is done to prevent 67087c478bd9Sstevel@tonic-gate * false matches. For example, without anchors, "a/([0-9]+)" will match "ab/c9" 67097c478bd9Sstevel@tonic-gate * and incorrect links will be generated. 67107c478bd9Sstevel@tonic-gate */ 67117c478bd9Sstevel@tonic-gate static int 67127c478bd9Sstevel@tonic-gate get_anchored_re(char *link, char *anchored_re, char *pattern) 67137c478bd9Sstevel@tonic-gate { 67147c478bd9Sstevel@tonic-gate if (*link == '/' || *link == '\0') { 67157c478bd9Sstevel@tonic-gate err_print(INVALID_DEVLINK_SPEC, pattern); 67167c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 67177c478bd9Sstevel@tonic-gate } 67187c478bd9Sstevel@tonic-gate 67197c478bd9Sstevel@tonic-gate *anchored_re++ = '^'; 67207c478bd9Sstevel@tonic-gate for (; *link != '\0'; ) { 67217c478bd9Sstevel@tonic-gate if (*link == '/') { 67227c478bd9Sstevel@tonic-gate while (*link == '/') 67237c478bd9Sstevel@tonic-gate link++; 67247c478bd9Sstevel@tonic-gate *anchored_re++ = '$'; 67257c478bd9Sstevel@tonic-gate *anchored_re++ = '/'; 67267c478bd9Sstevel@tonic-gate if (*link != '\0') { 67277c478bd9Sstevel@tonic-gate *anchored_re++ = '^'; 67287c478bd9Sstevel@tonic-gate } 67297c478bd9Sstevel@tonic-gate } else { 67307c478bd9Sstevel@tonic-gate *anchored_re++ = *link++; 67317c478bd9Sstevel@tonic-gate if (*link == '\0') { 67327c478bd9Sstevel@tonic-gate *anchored_re++ = '$'; 67337c478bd9Sstevel@tonic-gate } 67347c478bd9Sstevel@tonic-gate } 67357c478bd9Sstevel@tonic-gate } 67367c478bd9Sstevel@tonic-gate *anchored_re = '\0'; 67377c478bd9Sstevel@tonic-gate 67387c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 67397c478bd9Sstevel@tonic-gate } 67407c478bd9Sstevel@tonic-gate 67417c478bd9Sstevel@tonic-gate static int 67427c478bd9Sstevel@tonic-gate construct_devlink(char *link, link_list_t *link_build, char *contents, 6743406fc510SToomas Soome di_minor_t minor, di_node_t node, char *pattern) 67447c478bd9Sstevel@tonic-gate { 67457c478bd9Sstevel@tonic-gate int counter_offset = -1; 67467c478bd9Sstevel@tonic-gate devfsadm_enumerate_t rules[1] = {NULL}; 67477c478bd9Sstevel@tonic-gate char templink[PATH_MAX + 1]; 67487c478bd9Sstevel@tonic-gate char *buff; 67497c478bd9Sstevel@tonic-gate char start[10]; 67507c478bd9Sstevel@tonic-gate char *node_path; 67517c478bd9Sstevel@tonic-gate char anchored_re[PATH_MAX + 1]; 67527c478bd9Sstevel@tonic-gate 67537c478bd9Sstevel@tonic-gate link[0] = '\0'; 67547c478bd9Sstevel@tonic-gate 67557c478bd9Sstevel@tonic-gate for (; link_build != NULL; link_build = link_build->next) { 67567c478bd9Sstevel@tonic-gate switch (link_build->type) { 67577c478bd9Sstevel@tonic-gate case NAME: 67587c478bd9Sstevel@tonic-gate (void) strcat(link, di_node_name(node)); 67597c478bd9Sstevel@tonic-gate break; 67607c478bd9Sstevel@tonic-gate case CONSTANT: 67617c478bd9Sstevel@tonic-gate (void) strcat(link, link_build->constant); 67627c478bd9Sstevel@tonic-gate break; 67637c478bd9Sstevel@tonic-gate case ADDR: 67647c478bd9Sstevel@tonic-gate if (component_cat(link, di_bus_addr(node), 67650a653502Swroche link_build->arg) == DEVFSADM_FAILURE) { 67667c478bd9Sstevel@tonic-gate node_path = di_devfs_path(node); 67677c478bd9Sstevel@tonic-gate err_print(CANNOT_BE_USED, pattern, node_path, 67680a653502Swroche di_minor_name(minor)); 67697c478bd9Sstevel@tonic-gate di_devfs_path_free(node_path); 67707c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 67717c478bd9Sstevel@tonic-gate } 67727c478bd9Sstevel@tonic-gate break; 67737c478bd9Sstevel@tonic-gate case MINOR: 67747c478bd9Sstevel@tonic-gate if (component_cat(link, di_minor_name(minor), 67750a653502Swroche link_build->arg) == DEVFSADM_FAILURE) { 67767c478bd9Sstevel@tonic-gate node_path = di_devfs_path(node); 67777c478bd9Sstevel@tonic-gate err_print(CANNOT_BE_USED, pattern, node_path, 67780a653502Swroche di_minor_name(minor)); 67797c478bd9Sstevel@tonic-gate di_devfs_path_free(node_path); 67807c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 67817c478bd9Sstevel@tonic-gate } 67827c478bd9Sstevel@tonic-gate break; 67837c478bd9Sstevel@tonic-gate case COUNTER: 67847c478bd9Sstevel@tonic-gate counter_offset = strlen(link); 67857c478bd9Sstevel@tonic-gate (void) strcat(link, "([0-9]+)"); 67867c478bd9Sstevel@tonic-gate (void) sprintf(start, "%d", link_build->arg); 67877c478bd9Sstevel@tonic-gate break; 67887c478bd9Sstevel@tonic-gate default: 67897c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 67907c478bd9Sstevel@tonic-gate } 67917c478bd9Sstevel@tonic-gate } 67927c478bd9Sstevel@tonic-gate 67937c478bd9Sstevel@tonic-gate if (counter_offset != -1) { 67947c478bd9Sstevel@tonic-gate /* 67957c478bd9Sstevel@tonic-gate * copy anything appended after "([0-9]+)" into 67967c478bd9Sstevel@tonic-gate * templink 67977c478bd9Sstevel@tonic-gate */ 67987c478bd9Sstevel@tonic-gate 67997c478bd9Sstevel@tonic-gate (void) strcpy(templink, 68000a653502Swroche &link[counter_offset + strlen("([0-9]+)")]); 68017c478bd9Sstevel@tonic-gate if (get_anchored_re(link, anchored_re, pattern) 68027c478bd9Sstevel@tonic-gate != DEVFSADM_SUCCESS) { 68037c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 68047c478bd9Sstevel@tonic-gate } 68057c478bd9Sstevel@tonic-gate rules[0].re = anchored_re; 68067c478bd9Sstevel@tonic-gate rules[0].subexp = 1; 68077c478bd9Sstevel@tonic-gate rules[0].flags = MATCH_ALL; 68087c478bd9Sstevel@tonic-gate if (devfsadm_enumerate_int_start(contents, 0, &buff, 68097c478bd9Sstevel@tonic-gate rules, 1, start) == DEVFSADM_FAILURE) { 68107c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 68117c478bd9Sstevel@tonic-gate } 68127c478bd9Sstevel@tonic-gate (void) strcpy(&link[counter_offset], buff); 68137c478bd9Sstevel@tonic-gate free(buff); 68147c478bd9Sstevel@tonic-gate (void) strcat(link, templink); 68157c478bd9Sstevel@tonic-gate vprint(DEVLINK_MID, "COUNTER is %s\n", link); 68167c478bd9Sstevel@tonic-gate } 68177c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 68187c478bd9Sstevel@tonic-gate } 68197c478bd9Sstevel@tonic-gate 68207c478bd9Sstevel@tonic-gate /* 68217c478bd9Sstevel@tonic-gate * Compares "field" number of the comma separated list "full_name" with 68227c478bd9Sstevel@tonic-gate * field_item. Returns DEVFSADM_SUCCESS for match, 68237c478bd9Sstevel@tonic-gate * DEVFSADM_FAILURE for no match. 68247c478bd9Sstevel@tonic-gate */ 68257c478bd9Sstevel@tonic-gate static int 68267c478bd9Sstevel@tonic-gate compare_field(char *full_name, char *field_item, int field) 68277c478bd9Sstevel@tonic-gate { 68287c478bd9Sstevel@tonic-gate --field; 68297c478bd9Sstevel@tonic-gate while ((*full_name != '\0') && (field != 0)) { 68307c478bd9Sstevel@tonic-gate if (*(full_name++) == ',') { 68317c478bd9Sstevel@tonic-gate field--; 68327c478bd9Sstevel@tonic-gate } 68337c478bd9Sstevel@tonic-gate } 68347c478bd9Sstevel@tonic-gate 68357c478bd9Sstevel@tonic-gate if (field != 0) { 68367c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 68377c478bd9Sstevel@tonic-gate } 68387c478bd9Sstevel@tonic-gate 68397c478bd9Sstevel@tonic-gate while ((*full_name != '\0') && (*field_item != '\0') && 68400a653502Swroche (*full_name != ',')) { 68417c478bd9Sstevel@tonic-gate if (*(full_name++) != *(field_item++)) { 68427c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 68437c478bd9Sstevel@tonic-gate } 68447c478bd9Sstevel@tonic-gate } 68457c478bd9Sstevel@tonic-gate 68467c478bd9Sstevel@tonic-gate if (*field_item != '\0') { 68477c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 68487c478bd9Sstevel@tonic-gate } 68497c478bd9Sstevel@tonic-gate 68507c478bd9Sstevel@tonic-gate if ((*full_name == '\0') || (*full_name == ',')) 68517c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 68527c478bd9Sstevel@tonic-gate 68537c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 68547c478bd9Sstevel@tonic-gate } 68557c478bd9Sstevel@tonic-gate 68567c478bd9Sstevel@tonic-gate /* 68577c478bd9Sstevel@tonic-gate * strcat() field # "field" of comma separated list "name" to "link". 68587c478bd9Sstevel@tonic-gate * Field 0 is the entire name. 68597c478bd9Sstevel@tonic-gate * Return DEVFSADM_SUCCESS or DEVFSADM_FAILURE. 68607c478bd9Sstevel@tonic-gate */ 68617c478bd9Sstevel@tonic-gate static int 68627c478bd9Sstevel@tonic-gate component_cat(char *link, char *name, int field) 68637c478bd9Sstevel@tonic-gate { 68647c478bd9Sstevel@tonic-gate 68657c478bd9Sstevel@tonic-gate if (name == NULL) { 68667c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 68677c478bd9Sstevel@tonic-gate } 68687c478bd9Sstevel@tonic-gate 68697c478bd9Sstevel@tonic-gate if (field == 0) { 68707c478bd9Sstevel@tonic-gate (void) strcat(link, name); 68717c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 68727c478bd9Sstevel@tonic-gate } 68737c478bd9Sstevel@tonic-gate 68747c478bd9Sstevel@tonic-gate while (*link != '\0') { 68757c478bd9Sstevel@tonic-gate link++; 68767c478bd9Sstevel@tonic-gate } 68777c478bd9Sstevel@tonic-gate 68787c478bd9Sstevel@tonic-gate --field; 68797c478bd9Sstevel@tonic-gate while ((*name != '\0') && (field != 0)) { 68807c478bd9Sstevel@tonic-gate if (*(name++) == ',') { 68817c478bd9Sstevel@tonic-gate --field; 68827c478bd9Sstevel@tonic-gate } 68837c478bd9Sstevel@tonic-gate } 68847c478bd9Sstevel@tonic-gate 68857c478bd9Sstevel@tonic-gate if (field != 0) { 68867c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 68877c478bd9Sstevel@tonic-gate } 68887c478bd9Sstevel@tonic-gate 68897c478bd9Sstevel@tonic-gate while ((*name != '\0') && (*name != ',')) { 68907c478bd9Sstevel@tonic-gate *(link++) = *(name++); 68917c478bd9Sstevel@tonic-gate } 68927c478bd9Sstevel@tonic-gate 68937c478bd9Sstevel@tonic-gate *link = '\0'; 68947c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 68957c478bd9Sstevel@tonic-gate } 68967c478bd9Sstevel@tonic-gate 68977c478bd9Sstevel@tonic-gate static void 68987c478bd9Sstevel@tonic-gate free_selector_list(selector_list_t *head) 68997c478bd9Sstevel@tonic-gate { 69007c478bd9Sstevel@tonic-gate selector_list_t *temp; 69017c478bd9Sstevel@tonic-gate 69027c478bd9Sstevel@tonic-gate while (head != NULL) { 69037c478bd9Sstevel@tonic-gate temp = head; 69047c478bd9Sstevel@tonic-gate head = head->next; 69057c478bd9Sstevel@tonic-gate free(temp->val); 69067c478bd9Sstevel@tonic-gate free(temp); 69077c478bd9Sstevel@tonic-gate } 69087c478bd9Sstevel@tonic-gate } 69097c478bd9Sstevel@tonic-gate 69107c478bd9Sstevel@tonic-gate static void 69117c478bd9Sstevel@tonic-gate free_link_list(link_list_t *head) 69127c478bd9Sstevel@tonic-gate { 69137c478bd9Sstevel@tonic-gate link_list_t *temp; 69147c478bd9Sstevel@tonic-gate 69157c478bd9Sstevel@tonic-gate while (head != NULL) { 69167c478bd9Sstevel@tonic-gate temp = head; 69177c478bd9Sstevel@tonic-gate head = head->next; 69187c478bd9Sstevel@tonic-gate if (temp->type == CONSTANT) { 69197c478bd9Sstevel@tonic-gate free(temp->constant); 69207c478bd9Sstevel@tonic-gate } 69217c478bd9Sstevel@tonic-gate free(temp); 69227c478bd9Sstevel@tonic-gate } 69237c478bd9Sstevel@tonic-gate } 69247c478bd9Sstevel@tonic-gate 69257c478bd9Sstevel@tonic-gate /* 69267c478bd9Sstevel@tonic-gate * Prints only if level matches one of the debug levels 69277c478bd9Sstevel@tonic-gate * given on command line. INFO_MID is always printed. 69287c478bd9Sstevel@tonic-gate * 69297c478bd9Sstevel@tonic-gate * See devfsadm.h for a listing of globally defined levels and 69307c478bd9Sstevel@tonic-gate * meanings. Modules should prefix the level with their 69317c478bd9Sstevel@tonic-gate * module name to prevent collisions. 69327c478bd9Sstevel@tonic-gate */ 69337c478bd9Sstevel@tonic-gate /*PRINTFLIKE2*/ 69347c478bd9Sstevel@tonic-gate void 69357c478bd9Sstevel@tonic-gate devfsadm_print(char *msgid, char *message, ...) 69367c478bd9Sstevel@tonic-gate { 69377c478bd9Sstevel@tonic-gate va_list ap; 69387c478bd9Sstevel@tonic-gate static int newline = TRUE; 69397c478bd9Sstevel@tonic-gate int x; 69407c478bd9Sstevel@tonic-gate 69417c478bd9Sstevel@tonic-gate if (msgid != NULL) { 69427c478bd9Sstevel@tonic-gate for (x = 0; x < num_verbose; x++) { 69437c478bd9Sstevel@tonic-gate if (strcmp(verbose[x], msgid) == 0) { 69447c478bd9Sstevel@tonic-gate break; 69457c478bd9Sstevel@tonic-gate } 69467c478bd9Sstevel@tonic-gate if (strcmp(verbose[x], ALL_MID) == 0) { 69477c478bd9Sstevel@tonic-gate break; 69487c478bd9Sstevel@tonic-gate } 69497c478bd9Sstevel@tonic-gate } 69507c478bd9Sstevel@tonic-gate if (x == num_verbose) { 69517c478bd9Sstevel@tonic-gate return; 69527c478bd9Sstevel@tonic-gate } 69537c478bd9Sstevel@tonic-gate } 69547c478bd9Sstevel@tonic-gate 69557c478bd9Sstevel@tonic-gate va_start(ap, message); 69567c478bd9Sstevel@tonic-gate 69577c478bd9Sstevel@tonic-gate if (msgid == NULL) { 69587c478bd9Sstevel@tonic-gate if (logflag == TRUE) { 69597c478bd9Sstevel@tonic-gate (void) vsyslog(LOG_NOTICE, message, ap); 69607c478bd9Sstevel@tonic-gate } else { 69617c478bd9Sstevel@tonic-gate (void) vfprintf(stdout, message, ap); 69627c478bd9Sstevel@tonic-gate } 69637c478bd9Sstevel@tonic-gate 69647c478bd9Sstevel@tonic-gate } else { 69657c478bd9Sstevel@tonic-gate if (logflag == TRUE) { 69667c478bd9Sstevel@tonic-gate (void) syslog(LOG_DEBUG, "%s[%ld]: %s: ", 69670a653502Swroche prog, getpid(), msgid); 69687c478bd9Sstevel@tonic-gate (void) vsyslog(LOG_DEBUG, message, ap); 69697c478bd9Sstevel@tonic-gate } else { 69707c478bd9Sstevel@tonic-gate if (newline == TRUE) { 69717c478bd9Sstevel@tonic-gate (void) fprintf(stdout, "%s[%ld]: %s: ", 69720a653502Swroche prog, getpid(), msgid); 69737c478bd9Sstevel@tonic-gate } 69747c478bd9Sstevel@tonic-gate (void) vfprintf(stdout, message, ap); 69757c478bd9Sstevel@tonic-gate } 69767c478bd9Sstevel@tonic-gate } 69777c478bd9Sstevel@tonic-gate 69787c478bd9Sstevel@tonic-gate if (message[strlen(message) - 1] == '\n') { 69797c478bd9Sstevel@tonic-gate newline = TRUE; 69807c478bd9Sstevel@tonic-gate } else { 69817c478bd9Sstevel@tonic-gate newline = FALSE; 69827c478bd9Sstevel@tonic-gate } 69837c478bd9Sstevel@tonic-gate va_end(ap); 69847c478bd9Sstevel@tonic-gate } 69857c478bd9Sstevel@tonic-gate 69867c478bd9Sstevel@tonic-gate /* 69877c478bd9Sstevel@tonic-gate * print error messages to the terminal or to syslog 69887c478bd9Sstevel@tonic-gate */ 69897c478bd9Sstevel@tonic-gate /*PRINTFLIKE1*/ 69907c478bd9Sstevel@tonic-gate void 69917c478bd9Sstevel@tonic-gate devfsadm_errprint(char *message, ...) 69927c478bd9Sstevel@tonic-gate { 69937c478bd9Sstevel@tonic-gate va_list ap; 69947c478bd9Sstevel@tonic-gate 69957c478bd9Sstevel@tonic-gate va_start(ap, message); 69967c478bd9Sstevel@tonic-gate 69977c478bd9Sstevel@tonic-gate if (logflag == TRUE) { 69987c478bd9Sstevel@tonic-gate (void) vsyslog(LOG_ERR, message, ap); 69997c478bd9Sstevel@tonic-gate } else { 70007c478bd9Sstevel@tonic-gate (void) fprintf(stderr, "%s: ", prog); 70017c478bd9Sstevel@tonic-gate (void) vfprintf(stderr, message, ap); 70027c478bd9Sstevel@tonic-gate } 70037c478bd9Sstevel@tonic-gate va_end(ap); 70047c478bd9Sstevel@tonic-gate } 70057c478bd9Sstevel@tonic-gate 70067c478bd9Sstevel@tonic-gate /* 70077c478bd9Sstevel@tonic-gate * return noupdate state (-s) 70087c478bd9Sstevel@tonic-gate */ 70097c478bd9Sstevel@tonic-gate int 70107c478bd9Sstevel@tonic-gate devfsadm_noupdate(void) 70117c478bd9Sstevel@tonic-gate { 70127c478bd9Sstevel@tonic-gate return (file_mods == TRUE ? DEVFSADM_TRUE : DEVFSADM_FALSE); 70137c478bd9Sstevel@tonic-gate } 70147c478bd9Sstevel@tonic-gate 70157c478bd9Sstevel@tonic-gate /* 70167c478bd9Sstevel@tonic-gate * return current root update path (-r) 70177c478bd9Sstevel@tonic-gate */ 70187c478bd9Sstevel@tonic-gate const char * 70197c478bd9Sstevel@tonic-gate devfsadm_root_path(void) 70207c478bd9Sstevel@tonic-gate { 70217c478bd9Sstevel@tonic-gate if (root_dir[0] == '\0') { 70227c478bd9Sstevel@tonic-gate return ("/"); 70237c478bd9Sstevel@tonic-gate } else { 70247c478bd9Sstevel@tonic-gate return ((const char *)root_dir); 70257c478bd9Sstevel@tonic-gate } 70267c478bd9Sstevel@tonic-gate } 70277c478bd9Sstevel@tonic-gate 70283c4226f9Spjha void 70293c4226f9Spjha devfsadm_free_dev_names(char **dev_names, int len) 70303c4226f9Spjha { 70313c4226f9Spjha int i; 70323c4226f9Spjha 70333c4226f9Spjha for (i = 0; i < len; i++) 70343c4226f9Spjha free(dev_names[i]); 70353c4226f9Spjha free(dev_names); 70363c4226f9Spjha } 70373c4226f9Spjha 70383c4226f9Spjha /* 70393c4226f9Spjha * Return all devlinks corresponding to phys_path as an array of strings. 70403c4226f9Spjha * The number of entries in the array is returned through lenp. 70413c4226f9Spjha * devfsadm_free_dev_names() is used to free the returned array. 70423c4226f9Spjha * NULL is returned on failure or when there are no matching devlinks. 70433c4226f9Spjha * 7044*bbf21555SRichard Lowe * re is an extended regular expression in regex(7) format used to further 70453c4226f9Spjha * match devlinks pointing to phys_path; it may be NULL to match all 70463c4226f9Spjha */ 70473c4226f9Spjha char ** 70483c4226f9Spjha devfsadm_lookup_dev_names(char *phys_path, char *re, int *lenp) 70493c4226f9Spjha { 70503c4226f9Spjha struct devlink_cb_arg cb_arg; 70513c4226f9Spjha char **dev_names = NULL; 70523c4226f9Spjha int i; 70533c4226f9Spjha 70543c4226f9Spjha *lenp = 0; 70553c4226f9Spjha cb_arg.count = 0; 70563c4226f9Spjha cb_arg.rv = 0; 70573c4226f9Spjha (void) di_devlink_cache_walk(devlink_cache, re, phys_path, 70583c4226f9Spjha DI_PRIMARY_LINK, &cb_arg, devlink_cb); 70593c4226f9Spjha 70603c4226f9Spjha if (cb_arg.rv == -1 || cb_arg.count <= 0) 70613c4226f9Spjha return (NULL); 70623c4226f9Spjha 70633c4226f9Spjha dev_names = s_malloc(cb_arg.count * sizeof (char *)); 70643c4226f9Spjha if (dev_names == NULL) 70653c4226f9Spjha goto out; 70663c4226f9Spjha 70673c4226f9Spjha for (i = 0; i < cb_arg.count; i++) { 70683c4226f9Spjha dev_names[i] = s_strdup(cb_arg.dev_names[i]); 70693c4226f9Spjha if (dev_names[i] == NULL) { 70703c4226f9Spjha devfsadm_free_dev_names(dev_names, i); 70713c4226f9Spjha dev_names = NULL; 70723c4226f9Spjha goto out; 70733c4226f9Spjha } 70743c4226f9Spjha } 70753c4226f9Spjha *lenp = cb_arg.count; 70763c4226f9Spjha 70773c4226f9Spjha out: 70783c4226f9Spjha free_dev_names(&cb_arg); 70793c4226f9Spjha return (dev_names); 70803c4226f9Spjha } 70813c4226f9Spjha 70827c478bd9Sstevel@tonic-gate /* common exit function which ensures releasing locks */ 70837c478bd9Sstevel@tonic-gate static void 70847c478bd9Sstevel@tonic-gate devfsadm_exit(int status) 70857c478bd9Sstevel@tonic-gate { 70867c478bd9Sstevel@tonic-gate if (DEVFSADM_DEBUG_ON) { 70877c478bd9Sstevel@tonic-gate vprint(INFO_MID, "exit status = %d\n", status); 70887c478bd9Sstevel@tonic-gate } 70897c478bd9Sstevel@tonic-gate 7090537714daSvikram exit_dev_lock(1); 7091537714daSvikram exit_daemon_lock(1); 70927c478bd9Sstevel@tonic-gate 70937c478bd9Sstevel@tonic-gate if (logflag == TRUE) { 70947c478bd9Sstevel@tonic-gate closelog(); 70957c478bd9Sstevel@tonic-gate } 70967c478bd9Sstevel@tonic-gate 70977c478bd9Sstevel@tonic-gate exit(status); 7098537714daSvikram /*NOTREACHED*/ 70997c478bd9Sstevel@tonic-gate } 71007c478bd9Sstevel@tonic-gate 71017c478bd9Sstevel@tonic-gate /* 7102facf4a8dSllai * set root_dir, devices_dir, dev_dir using optarg. 71037c478bd9Sstevel@tonic-gate */ 71047c478bd9Sstevel@tonic-gate static void 7105facf4a8dSllai set_root_devices_dev_dir(char *dir) 71067c478bd9Sstevel@tonic-gate { 71077c478bd9Sstevel@tonic-gate size_t len; 71087c478bd9Sstevel@tonic-gate 71097c478bd9Sstevel@tonic-gate root_dir = s_strdup(dir); 71107c478bd9Sstevel@tonic-gate len = strlen(dir) + strlen(DEVICES) + 1; 71117c478bd9Sstevel@tonic-gate devices_dir = s_malloc(len); 71127c478bd9Sstevel@tonic-gate (void) snprintf(devices_dir, len, "%s%s", root_dir, DEVICES); 71137c478bd9Sstevel@tonic-gate len = strlen(root_dir) + strlen(DEV) + 1; 71147c478bd9Sstevel@tonic-gate dev_dir = s_malloc(len); 71157c478bd9Sstevel@tonic-gate (void) snprintf(dev_dir, len, "%s%s", root_dir, DEV); 71167c478bd9Sstevel@tonic-gate } 71177c478bd9Sstevel@tonic-gate 71187c478bd9Sstevel@tonic-gate /* 71197c478bd9Sstevel@tonic-gate * Removes quotes. 71207c478bd9Sstevel@tonic-gate */ 71217c478bd9Sstevel@tonic-gate static char * 71227c478bd9Sstevel@tonic-gate dequote(char *src) 71237c478bd9Sstevel@tonic-gate { 71247c478bd9Sstevel@tonic-gate char *dst; 71257c478bd9Sstevel@tonic-gate int len; 71267c478bd9Sstevel@tonic-gate 71277c478bd9Sstevel@tonic-gate len = strlen(src); 71287c478bd9Sstevel@tonic-gate dst = s_malloc(len + 1); 71297c478bd9Sstevel@tonic-gate if (src[0] == '\"' && src[len - 1] == '\"') { 71307c478bd9Sstevel@tonic-gate len -= 2; 71317c478bd9Sstevel@tonic-gate (void) strncpy(dst, &src[1], len); 71327c478bd9Sstevel@tonic-gate dst[len] = '\0'; 71337c478bd9Sstevel@tonic-gate } else { 71347c478bd9Sstevel@tonic-gate (void) strcpy(dst, src); 71357c478bd9Sstevel@tonic-gate } 71367c478bd9Sstevel@tonic-gate return (dst); 71377c478bd9Sstevel@tonic-gate } 71387c478bd9Sstevel@tonic-gate 71397c478bd9Sstevel@tonic-gate /* 71407c478bd9Sstevel@tonic-gate * For a given physical device pathname and spectype, return the 71417c478bd9Sstevel@tonic-gate * ownership and permissions attributes by looking in data from 71427c478bd9Sstevel@tonic-gate * /etc/minor_perm. If currently in installation mode, check for 71437c478bd9Sstevel@tonic-gate * possible major number translations from the miniroot to the installed 71447c478bd9Sstevel@tonic-gate * root's name_to_major table. Note that there can be multiple matches, 71457c478bd9Sstevel@tonic-gate * but the last match takes effect. pts seems to rely on this 71467c478bd9Sstevel@tonic-gate * implementation behavior. 71477c478bd9Sstevel@tonic-gate */ 71487c478bd9Sstevel@tonic-gate static void 71497c478bd9Sstevel@tonic-gate getattr(char *phy_path, char *aminor, int spectype, dev_t dev, mode_t *mode, 7150406fc510SToomas Soome uid_t *uid, gid_t *gid) 71517c478bd9Sstevel@tonic-gate { 71527c478bd9Sstevel@tonic-gate char devname[PATH_MAX + 1]; 71537c478bd9Sstevel@tonic-gate char *node_name; 71547c478bd9Sstevel@tonic-gate char *minor_name; 71557c478bd9Sstevel@tonic-gate int match = FALSE; 71567c478bd9Sstevel@tonic-gate int is_clone; 71577c478bd9Sstevel@tonic-gate int mp_drvname_matches_node_name; 71587c478bd9Sstevel@tonic-gate int mp_drvname_matches_minor_name; 71597c478bd9Sstevel@tonic-gate int mp_drvname_is_clone; 71607c478bd9Sstevel@tonic-gate int mp_drvname_matches_drvname; 71617c478bd9Sstevel@tonic-gate struct mperm *mp; 71627c478bd9Sstevel@tonic-gate major_t major_no; 71637c478bd9Sstevel@tonic-gate char driver[PATH_MAX + 1]; 71647c478bd9Sstevel@tonic-gate 71657c478bd9Sstevel@tonic-gate /* 71667c478bd9Sstevel@tonic-gate * Get the driver name based on the major number since the name 71677c478bd9Sstevel@tonic-gate * in /devices may be generic. Could be running with more major 71687c478bd9Sstevel@tonic-gate * numbers than are in /etc/name_to_major, so get it from the kernel 71697c478bd9Sstevel@tonic-gate */ 71707c478bd9Sstevel@tonic-gate major_no = major(dev); 71717c478bd9Sstevel@tonic-gate 71727c478bd9Sstevel@tonic-gate if (modctl(MODGETNAME, driver, sizeof (driver), &major_no) != 0) { 71737c478bd9Sstevel@tonic-gate /* return default values */ 71747c478bd9Sstevel@tonic-gate goto use_defaults; 71757c478bd9Sstevel@tonic-gate } 71767c478bd9Sstevel@tonic-gate 71777c478bd9Sstevel@tonic-gate (void) strcpy(devname, phy_path); 71787c478bd9Sstevel@tonic-gate 71797c478bd9Sstevel@tonic-gate node_name = strrchr(devname, '/'); /* node name is the last */ 71807c478bd9Sstevel@tonic-gate /* component */ 71817c478bd9Sstevel@tonic-gate if (node_name == NULL) { 71827c478bd9Sstevel@tonic-gate err_print(NO_NODE, devname); 71837c478bd9Sstevel@tonic-gate goto use_defaults; 71847c478bd9Sstevel@tonic-gate } 71857c478bd9Sstevel@tonic-gate 71867c478bd9Sstevel@tonic-gate minor_name = strchr(++node_name, '@'); /* see if it has address part */ 71877c478bd9Sstevel@tonic-gate 71887c478bd9Sstevel@tonic-gate if (minor_name != NULL) { 71897c478bd9Sstevel@tonic-gate *minor_name++ = '\0'; 71907c478bd9Sstevel@tonic-gate } else { 71917c478bd9Sstevel@tonic-gate minor_name = node_name; 71927c478bd9Sstevel@tonic-gate } 71937c478bd9Sstevel@tonic-gate 71947c478bd9Sstevel@tonic-gate minor_name = strchr(minor_name, ':'); /* look for minor name */ 71957c478bd9Sstevel@tonic-gate 71967c478bd9Sstevel@tonic-gate if (minor_name == NULL) { 71977c478bd9Sstevel@tonic-gate err_print(NO_MINOR, devname); 71987c478bd9Sstevel@tonic-gate goto use_defaults; 71997c478bd9Sstevel@tonic-gate } 72007c478bd9Sstevel@tonic-gate *minor_name++ = '\0'; 72017c478bd9Sstevel@tonic-gate 72027c478bd9Sstevel@tonic-gate /* 72037c478bd9Sstevel@tonic-gate * mp->mp_drvname = device name from minor_perm 72047c478bd9Sstevel@tonic-gate * mp->mp_minorname = minor part of device name from 72057c478bd9Sstevel@tonic-gate * minor_perm 72067c478bd9Sstevel@tonic-gate * drvname = name of driver for this device 72077c478bd9Sstevel@tonic-gate */ 72087c478bd9Sstevel@tonic-gate 72097c478bd9Sstevel@tonic-gate is_clone = (strcmp(node_name, "clone") == 0 ? TRUE : FALSE); 72107c478bd9Sstevel@tonic-gate for (mp = minor_perms; mp != NULL; mp = mp->mp_next) { 72117c478bd9Sstevel@tonic-gate mp_drvname_matches_node_name = 72120a653502Swroche (strcmp(mp->mp_drvname, node_name) == 0 ? TRUE : FALSE); 72137c478bd9Sstevel@tonic-gate mp_drvname_matches_minor_name = 72140a653502Swroche (strcmp(mp->mp_drvname, minor_name) == 0 ? TRUE:FALSE); 72157c478bd9Sstevel@tonic-gate mp_drvname_is_clone = 72160a653502Swroche (strcmp(mp->mp_drvname, "clone") == 0 ? TRUE : FALSE); 72177c478bd9Sstevel@tonic-gate mp_drvname_matches_drvname = 72180a653502Swroche (strcmp(mp->mp_drvname, driver) == 0 ? TRUE : FALSE); 72197c478bd9Sstevel@tonic-gate 72207c478bd9Sstevel@tonic-gate /* 72217c478bd9Sstevel@tonic-gate * If one of the following cases is true, then we try to change 72227c478bd9Sstevel@tonic-gate * the permissions if a "shell global pattern match" of 72237c478bd9Sstevel@tonic-gate * mp_>mp_minorname matches minor_name. 72247c478bd9Sstevel@tonic-gate * 72257c478bd9Sstevel@tonic-gate * 1. mp->mp_drvname matches driver. 72267c478bd9Sstevel@tonic-gate * 72277c478bd9Sstevel@tonic-gate * OR 72287c478bd9Sstevel@tonic-gate * 72297c478bd9Sstevel@tonic-gate * 2. mp->mp_drvname matches node_name and this 72307c478bd9Sstevel@tonic-gate * name is an alias of the driver name 72317c478bd9Sstevel@tonic-gate * 72327c478bd9Sstevel@tonic-gate * OR 72337c478bd9Sstevel@tonic-gate * 72347c478bd9Sstevel@tonic-gate * 3. /devices entry is the clone device and either 72357c478bd9Sstevel@tonic-gate * minor_perm entry is the clone device or matches 72367c478bd9Sstevel@tonic-gate * the minor part of the clone device. 72377c478bd9Sstevel@tonic-gate */ 72387c478bd9Sstevel@tonic-gate 72397c478bd9Sstevel@tonic-gate if ((mp_drvname_matches_drvname == TRUE)|| 72407c478bd9Sstevel@tonic-gate ((mp_drvname_matches_node_name == TRUE) && 72417c478bd9Sstevel@tonic-gate (alias(driver, node_name) == TRUE)) || 72427c478bd9Sstevel@tonic-gate ((is_clone == TRUE) && 72437c478bd9Sstevel@tonic-gate ((mp_drvname_is_clone == TRUE) || 72447c478bd9Sstevel@tonic-gate (mp_drvname_matches_minor_name == TRUE)))) { 72457c478bd9Sstevel@tonic-gate /* 72467c478bd9Sstevel@tonic-gate * Check that the minor part of the 72477c478bd9Sstevel@tonic-gate * device name from the minor_perm 72487c478bd9Sstevel@tonic-gate * entry matches and if so, set the 72497c478bd9Sstevel@tonic-gate * permissions. 72507c478bd9Sstevel@tonic-gate * 72517c478bd9Sstevel@tonic-gate * Under real devfs, clone minor name is changed 72527c478bd9Sstevel@tonic-gate * to match the driver name, but minor_perm may 72537c478bd9Sstevel@tonic-gate * not match. We reconcile it here. 72547c478bd9Sstevel@tonic-gate */ 72557c478bd9Sstevel@tonic-gate if (aminor != NULL) 72567c478bd9Sstevel@tonic-gate minor_name = aminor; 72577c478bd9Sstevel@tonic-gate 72587c478bd9Sstevel@tonic-gate if (gmatch(minor_name, mp->mp_minorname) != 0) { 72597c478bd9Sstevel@tonic-gate *uid = mp->mp_uid; 72607c478bd9Sstevel@tonic-gate *gid = mp->mp_gid; 72617c478bd9Sstevel@tonic-gate *mode = spectype | mp->mp_mode; 72627c478bd9Sstevel@tonic-gate match = TRUE; 72637c478bd9Sstevel@tonic-gate } 72647c478bd9Sstevel@tonic-gate } 72657c478bd9Sstevel@tonic-gate } 72667c478bd9Sstevel@tonic-gate 72677c478bd9Sstevel@tonic-gate if (match == TRUE) { 72687c478bd9Sstevel@tonic-gate return; 72697c478bd9Sstevel@tonic-gate } 72707c478bd9Sstevel@tonic-gate 72717c478bd9Sstevel@tonic-gate use_defaults: 72727c478bd9Sstevel@tonic-gate /* not found in minor_perm, so just use default values */ 72737c478bd9Sstevel@tonic-gate *uid = root_uid; 72747c478bd9Sstevel@tonic-gate *gid = sys_gid; 72757c478bd9Sstevel@tonic-gate *mode = (spectype | 0600); 72767c478bd9Sstevel@tonic-gate } 72777c478bd9Sstevel@tonic-gate 72787c478bd9Sstevel@tonic-gate /* 72797c478bd9Sstevel@tonic-gate * Called by devfs_read_minor_perm() to report errors 72807c478bd9Sstevel@tonic-gate * key is: 72817c478bd9Sstevel@tonic-gate * line number: ignoring line number error 72827c478bd9Sstevel@tonic-gate * errno: open/close errors 72837c478bd9Sstevel@tonic-gate * size: alloc errors 72847c478bd9Sstevel@tonic-gate */ 72857c478bd9Sstevel@tonic-gate static void 72867c478bd9Sstevel@tonic-gate minorperm_err_cb(minorperm_err_t mp_err, int key) 72877c478bd9Sstevel@tonic-gate { 72887c478bd9Sstevel@tonic-gate switch (mp_err) { 72897c478bd9Sstevel@tonic-gate case MP_FOPEN_ERR: 72907c478bd9Sstevel@tonic-gate err_print(FOPEN_FAILED, MINOR_PERM_FILE, strerror(key)); 72917c478bd9Sstevel@tonic-gate break; 72927c478bd9Sstevel@tonic-gate case MP_FCLOSE_ERR: 72937c478bd9Sstevel@tonic-gate err_print(FCLOSE_FAILED, MINOR_PERM_FILE, strerror(key)); 72947c478bd9Sstevel@tonic-gate break; 72957c478bd9Sstevel@tonic-gate case MP_IGNORING_LINE_ERR: 72967c478bd9Sstevel@tonic-gate err_print(IGNORING_LINE_IN, key, MINOR_PERM_FILE); 72977c478bd9Sstevel@tonic-gate break; 72987c478bd9Sstevel@tonic-gate case MP_ALLOC_ERR: 72997c478bd9Sstevel@tonic-gate err_print(MALLOC_FAILED, key); 73007c478bd9Sstevel@tonic-gate break; 73017c478bd9Sstevel@tonic-gate case MP_NVLIST_ERR: 73027c478bd9Sstevel@tonic-gate err_print(NVLIST_ERROR, MINOR_PERM_FILE, strerror(key)); 73037c478bd9Sstevel@tonic-gate break; 73047c478bd9Sstevel@tonic-gate case MP_CANT_FIND_USER_ERR: 73057c478bd9Sstevel@tonic-gate err_print(CANT_FIND_USER, DEFAULT_DEV_USER); 73067c478bd9Sstevel@tonic-gate break; 73077c478bd9Sstevel@tonic-gate case MP_CANT_FIND_GROUP_ERR: 73087c478bd9Sstevel@tonic-gate err_print(CANT_FIND_GROUP, DEFAULT_DEV_GROUP); 73097c478bd9Sstevel@tonic-gate break; 73107c478bd9Sstevel@tonic-gate } 73117c478bd9Sstevel@tonic-gate } 73127c478bd9Sstevel@tonic-gate 73137c478bd9Sstevel@tonic-gate static void 73147c478bd9Sstevel@tonic-gate read_minor_perm_file(void) 73157c478bd9Sstevel@tonic-gate { 73167c478bd9Sstevel@tonic-gate static int cached = FALSE; 73177c478bd9Sstevel@tonic-gate static struct stat cached_sb; 73187c478bd9Sstevel@tonic-gate struct stat current_sb; 73197c478bd9Sstevel@tonic-gate 73207c478bd9Sstevel@tonic-gate (void) stat(MINOR_PERM_FILE, ¤t_sb); 73217c478bd9Sstevel@tonic-gate 73227c478bd9Sstevel@tonic-gate /* If already cached, check to see if it is still valid */ 73237c478bd9Sstevel@tonic-gate if (cached == TRUE) { 73247c478bd9Sstevel@tonic-gate 73257c478bd9Sstevel@tonic-gate if (current_sb.st_mtime == cached_sb.st_mtime) { 73267c478bd9Sstevel@tonic-gate vprint(FILES_MID, "%s cache valid\n", MINOR_PERM_FILE); 73277c478bd9Sstevel@tonic-gate return; 73287c478bd9Sstevel@tonic-gate } 73297c478bd9Sstevel@tonic-gate devfs_free_minor_perm(minor_perms); 73307c478bd9Sstevel@tonic-gate minor_perms = NULL; 73317c478bd9Sstevel@tonic-gate } else { 73327c478bd9Sstevel@tonic-gate cached = TRUE; 73337c478bd9Sstevel@tonic-gate } 73347c478bd9Sstevel@tonic-gate 73357c478bd9Sstevel@tonic-gate (void) stat(MINOR_PERM_FILE, &cached_sb); 73367c478bd9Sstevel@tonic-gate 73377c478bd9Sstevel@tonic-gate vprint(FILES_MID, "loading binding file: %s\n", MINOR_PERM_FILE); 73387c478bd9Sstevel@tonic-gate 73397c478bd9Sstevel@tonic-gate minor_perms = devfs_read_minor_perm(minorperm_err_cb); 73407c478bd9Sstevel@tonic-gate } 73417c478bd9Sstevel@tonic-gate 73427c478bd9Sstevel@tonic-gate static void 73437c478bd9Sstevel@tonic-gate load_minor_perm_file(void) 73447c478bd9Sstevel@tonic-gate { 73457c478bd9Sstevel@tonic-gate read_minor_perm_file(); 73467c478bd9Sstevel@tonic-gate if (devfs_load_minor_perm(minor_perms, minorperm_err_cb) != 0) 73477c478bd9Sstevel@tonic-gate err_print(gettext("minor_perm load failed\n")); 73487c478bd9Sstevel@tonic-gate } 73497c478bd9Sstevel@tonic-gate 73507c478bd9Sstevel@tonic-gate static char * 73517c478bd9Sstevel@tonic-gate convert_to_re(char *dev) 73527c478bd9Sstevel@tonic-gate { 73537c478bd9Sstevel@tonic-gate char *p, *l, *out; 73547c478bd9Sstevel@tonic-gate int i; 73557c478bd9Sstevel@tonic-gate 73567c478bd9Sstevel@tonic-gate out = s_malloc(PATH_MAX); 73577c478bd9Sstevel@tonic-gate 73587c478bd9Sstevel@tonic-gate for (l = p = dev, i = 0; (*p != '\0') && (i < (PATH_MAX - 1)); 73597c478bd9Sstevel@tonic-gate ++p, i++) { 73607c478bd9Sstevel@tonic-gate if ((*p == '*') && ((l != p) && (*l == '/'))) { 73617c478bd9Sstevel@tonic-gate out[i++] = '.'; 73627c478bd9Sstevel@tonic-gate out[i] = '+'; 73637c478bd9Sstevel@tonic-gate } else { 73647c478bd9Sstevel@tonic-gate out[i] = *p; 73657c478bd9Sstevel@tonic-gate } 73667c478bd9Sstevel@tonic-gate l = p; 73677c478bd9Sstevel@tonic-gate } 73687c478bd9Sstevel@tonic-gate out[i] = '\0'; 73697c478bd9Sstevel@tonic-gate p = (char *)s_malloc(strlen(out) + 1); 73707c478bd9Sstevel@tonic-gate (void) strlcpy(p, out, strlen(out) + 1); 73717c478bd9Sstevel@tonic-gate free(out); 73727c478bd9Sstevel@tonic-gate 73737c478bd9Sstevel@tonic-gate vprint(FILES_MID, "converted %s -> %s\n", dev, p); 73747c478bd9Sstevel@tonic-gate 73757c478bd9Sstevel@tonic-gate return (p); 73767c478bd9Sstevel@tonic-gate } 73777c478bd9Sstevel@tonic-gate 73787c478bd9Sstevel@tonic-gate static void 73797c478bd9Sstevel@tonic-gate read_logindevperm_file(void) 73807c478bd9Sstevel@tonic-gate { 73817c478bd9Sstevel@tonic-gate static int cached = FALSE; 73827c478bd9Sstevel@tonic-gate static struct stat cached_sb; 73837c478bd9Sstevel@tonic-gate struct stat current_sb; 73847c478bd9Sstevel@tonic-gate struct login_dev *ldev; 73857c478bd9Sstevel@tonic-gate FILE *fp; 73867c478bd9Sstevel@tonic-gate char line[MAX_LDEV_LINE]; 73877c478bd9Sstevel@tonic-gate int ln, perm, rv; 73886e670f77Saj char *cp, *console, *dlist, *dev; 73897c478bd9Sstevel@tonic-gate char *lasts, *devlasts, *permstr, *drv; 73907c478bd9Sstevel@tonic-gate struct driver_list *list, *next; 73917c478bd9Sstevel@tonic-gate 73927c478bd9Sstevel@tonic-gate /* Read logindevperm only when enabled */ 73937c478bd9Sstevel@tonic-gate if (login_dev_enable != TRUE) 73947c478bd9Sstevel@tonic-gate return; 73957c478bd9Sstevel@tonic-gate 73967c478bd9Sstevel@tonic-gate if (cached == TRUE) { 73977c478bd9Sstevel@tonic-gate if (stat(LDEV_FILE, ¤t_sb) == 0 && 73987c478bd9Sstevel@tonic-gate current_sb.st_mtime == cached_sb.st_mtime) { 73997c478bd9Sstevel@tonic-gate vprint(FILES_MID, "%s cache valid\n", LDEV_FILE); 74007c478bd9Sstevel@tonic-gate return; 74017c478bd9Sstevel@tonic-gate } 74027c478bd9Sstevel@tonic-gate vprint(FILES_MID, "invalidating %s cache\n", LDEV_FILE); 74037c478bd9Sstevel@tonic-gate while (login_dev_cache != NULL) { 74047c478bd9Sstevel@tonic-gate 74057c478bd9Sstevel@tonic-gate ldev = login_dev_cache; 74067c478bd9Sstevel@tonic-gate login_dev_cache = ldev->ldev_next; 74077c478bd9Sstevel@tonic-gate free(ldev->ldev_console); 74087c478bd9Sstevel@tonic-gate free(ldev->ldev_device); 74097c478bd9Sstevel@tonic-gate regfree(&ldev->ldev_device_regex); 74107c478bd9Sstevel@tonic-gate list = ldev->ldev_driver_list; 74117c478bd9Sstevel@tonic-gate while (list) { 74127c478bd9Sstevel@tonic-gate next = list->next; 74137c478bd9Sstevel@tonic-gate free(list); 74147c478bd9Sstevel@tonic-gate list = next; 74157c478bd9Sstevel@tonic-gate } 74167c478bd9Sstevel@tonic-gate free(ldev); 74177c478bd9Sstevel@tonic-gate } 74187c478bd9Sstevel@tonic-gate } else { 74197c478bd9Sstevel@tonic-gate cached = TRUE; 74207c478bd9Sstevel@tonic-gate } 74217c478bd9Sstevel@tonic-gate 74227c478bd9Sstevel@tonic-gate assert(login_dev_cache == NULL); 74237c478bd9Sstevel@tonic-gate 74247c478bd9Sstevel@tonic-gate if (stat(LDEV_FILE, &cached_sb) != 0) { 74257c478bd9Sstevel@tonic-gate cached = FALSE; 74267c478bd9Sstevel@tonic-gate return; 74277c478bd9Sstevel@tonic-gate } 74287c478bd9Sstevel@tonic-gate 74297c478bd9Sstevel@tonic-gate vprint(FILES_MID, "loading file: %s\n", LDEV_FILE); 74307c478bd9Sstevel@tonic-gate 74317c478bd9Sstevel@tonic-gate if ((fp = fopen(LDEV_FILE, "r")) == NULL) { 74327c478bd9Sstevel@tonic-gate /* Not fatal to devfsadm */ 74337c478bd9Sstevel@tonic-gate cached = FALSE; 74347c478bd9Sstevel@tonic-gate err_print(FOPEN_FAILED, LDEV_FILE, strerror(errno)); 74357c478bd9Sstevel@tonic-gate return; 74367c478bd9Sstevel@tonic-gate } 74377c478bd9Sstevel@tonic-gate 74387c478bd9Sstevel@tonic-gate ln = 0; 74397c478bd9Sstevel@tonic-gate while (fgets(line, MAX_LDEV_LINE, fp) != NULL) { 74407c478bd9Sstevel@tonic-gate ln++; 74417c478bd9Sstevel@tonic-gate 74427c478bd9Sstevel@tonic-gate /* Remove comments */ 74437c478bd9Sstevel@tonic-gate if ((cp = strchr(line, '#')) != NULL) 74447c478bd9Sstevel@tonic-gate *cp = '\0'; 74457c478bd9Sstevel@tonic-gate 74467c478bd9Sstevel@tonic-gate if ((console = strtok_r(line, LDEV_DELIMS, &lasts)) == NULL) 74477c478bd9Sstevel@tonic-gate continue; /* Blank line */ 74487c478bd9Sstevel@tonic-gate 74497c478bd9Sstevel@tonic-gate if ((permstr = strtok_r(NULL, LDEV_DELIMS, &lasts)) == NULL) { 74507c478bd9Sstevel@tonic-gate err_print(IGNORING_LINE_IN, ln, LDEV_FILE); 74517c478bd9Sstevel@tonic-gate continue; /* Malformed line */ 74527c478bd9Sstevel@tonic-gate } 74537c478bd9Sstevel@tonic-gate 74547c478bd9Sstevel@tonic-gate /* 74557c478bd9Sstevel@tonic-gate * permstr is string in octal format. Convert to int 74567c478bd9Sstevel@tonic-gate */ 74577c478bd9Sstevel@tonic-gate cp = NULL; 74587c478bd9Sstevel@tonic-gate errno = 0; 74597c478bd9Sstevel@tonic-gate perm = strtol(permstr, &cp, 8); 74607c478bd9Sstevel@tonic-gate if (errno || perm < 0 || perm > 0777 || *cp != '\0') { 74617c478bd9Sstevel@tonic-gate err_print(IGNORING_LINE_IN, ln, LDEV_FILE); 74627c478bd9Sstevel@tonic-gate continue; 74637c478bd9Sstevel@tonic-gate } 74647c478bd9Sstevel@tonic-gate 74656e670f77Saj if ((dlist = strtok_r(NULL, LDEV_DELIMS, &lasts)) == NULL) { 74667c478bd9Sstevel@tonic-gate err_print(IGNORING_LINE_IN, ln, LDEV_FILE); 74677c478bd9Sstevel@tonic-gate continue; 74687c478bd9Sstevel@tonic-gate } 74697c478bd9Sstevel@tonic-gate 74706e670f77Saj dev = strtok_r(dlist, LDEV_DEV_DELIM, &devlasts); 74717c478bd9Sstevel@tonic-gate while (dev) { 74727c478bd9Sstevel@tonic-gate 74737c478bd9Sstevel@tonic-gate ldev = (struct login_dev *)s_zalloc( 74747c478bd9Sstevel@tonic-gate sizeof (struct login_dev)); 74757c478bd9Sstevel@tonic-gate ldev->ldev_console = s_strdup(console); 74767c478bd9Sstevel@tonic-gate ldev->ldev_perms = perm; 74777c478bd9Sstevel@tonic-gate 74787c478bd9Sstevel@tonic-gate /* 74797c478bd9Sstevel@tonic-gate * the logical device name may contain '*' which 74807c478bd9Sstevel@tonic-gate * we convert to a regular expression 74817c478bd9Sstevel@tonic-gate */ 74827c478bd9Sstevel@tonic-gate ldev->ldev_device = convert_to_re(dev); 74837c478bd9Sstevel@tonic-gate if (ldev->ldev_device && 74847c478bd9Sstevel@tonic-gate (rv = regcomp(&ldev->ldev_device_regex, 74857c478bd9Sstevel@tonic-gate ldev->ldev_device, REG_EXTENDED))) { 74867c478bd9Sstevel@tonic-gate bzero(&ldev->ldev_device_regex, 74877c478bd9Sstevel@tonic-gate sizeof (ldev->ldev_device_regex)); 74887c478bd9Sstevel@tonic-gate err_print(REGCOMP_FAILED, 74897c478bd9Sstevel@tonic-gate ldev->ldev_device, rv); 74907c478bd9Sstevel@tonic-gate } 74917c478bd9Sstevel@tonic-gate ldev->ldev_next = login_dev_cache; 74927c478bd9Sstevel@tonic-gate login_dev_cache = ldev; 74937c478bd9Sstevel@tonic-gate dev = strtok_r(NULL, LDEV_DEV_DELIM, &devlasts); 74947c478bd9Sstevel@tonic-gate } 74957c478bd9Sstevel@tonic-gate 74967c478bd9Sstevel@tonic-gate drv = strtok_r(NULL, LDEV_DRVLIST_DELIMS, &lasts); 74977c478bd9Sstevel@tonic-gate if (drv) { 74987c478bd9Sstevel@tonic-gate if (strcmp(drv, LDEV_DRVLIST_NAME) == 0) { 74997c478bd9Sstevel@tonic-gate 75000a653502Swroche drv = strtok_r(NULL, LDEV_DRV_DELIMS, &lasts); 75017c478bd9Sstevel@tonic-gate 75027c478bd9Sstevel@tonic-gate while (drv) { 75037c478bd9Sstevel@tonic-gate vprint(FILES_MID, 75040a653502Swroche "logindevperm driver=%s\n", drv); 75057c478bd9Sstevel@tonic-gate 75067c478bd9Sstevel@tonic-gate /* 75077c478bd9Sstevel@tonic-gate * create a linked list of driver 75087c478bd9Sstevel@tonic-gate * names 75097c478bd9Sstevel@tonic-gate */ 75107c478bd9Sstevel@tonic-gate list = (struct driver_list *) 75117c478bd9Sstevel@tonic-gate s_zalloc( 75127c478bd9Sstevel@tonic-gate sizeof (struct driver_list)); 75137c478bd9Sstevel@tonic-gate (void) strlcpy(list->driver_name, drv, 75147c478bd9Sstevel@tonic-gate sizeof (list->driver_name)); 75157c478bd9Sstevel@tonic-gate list->next = ldev->ldev_driver_list; 75167c478bd9Sstevel@tonic-gate ldev->ldev_driver_list = list; 75177c478bd9Sstevel@tonic-gate drv = strtok_r(NULL, LDEV_DRV_DELIMS, 75187c478bd9Sstevel@tonic-gate &lasts); 75197c478bd9Sstevel@tonic-gate } 75207c478bd9Sstevel@tonic-gate } 75217c478bd9Sstevel@tonic-gate } 75227c478bd9Sstevel@tonic-gate } 75237c478bd9Sstevel@tonic-gate (void) fclose(fp); 75247c478bd9Sstevel@tonic-gate } 75257c478bd9Sstevel@tonic-gate 75267c478bd9Sstevel@tonic-gate /* 75277c478bd9Sstevel@tonic-gate * Tokens are separated by ' ', '\t', ':', '=', '&', '|', ';', '\n', or '\0' 75287c478bd9Sstevel@tonic-gate * 75297c478bd9Sstevel@tonic-gate * Returns DEVFSADM_SUCCESS if token found, DEVFSADM_FAILURE otherwise. 75307c478bd9Sstevel@tonic-gate */ 75317c478bd9Sstevel@tonic-gate static int 75327c478bd9Sstevel@tonic-gate getnexttoken(char *next, char **nextp, char **tokenpp, char *tchar) 75337c478bd9Sstevel@tonic-gate { 75347c478bd9Sstevel@tonic-gate char *cp; 75357c478bd9Sstevel@tonic-gate char *cp1; 75367c478bd9Sstevel@tonic-gate char *tokenp; 75377c478bd9Sstevel@tonic-gate 75387c478bd9Sstevel@tonic-gate cp = next; 75397c478bd9Sstevel@tonic-gate while (*cp == ' ' || *cp == '\t') { 75407c478bd9Sstevel@tonic-gate cp++; /* skip leading spaces */ 75417c478bd9Sstevel@tonic-gate } 75427c478bd9Sstevel@tonic-gate tokenp = cp; /* start of token */ 75437c478bd9Sstevel@tonic-gate while (*cp != '\0' && *cp != '\n' && *cp != ' ' && *cp != '\t' && 75440a653502Swroche *cp != ':' && *cp != '=' && *cp != '&' && 75450a653502Swroche *cp != '|' && *cp != ';') { 75467c478bd9Sstevel@tonic-gate cp++; /* point to next character */ 75477c478bd9Sstevel@tonic-gate } 75487c478bd9Sstevel@tonic-gate /* 75497c478bd9Sstevel@tonic-gate * If terminating character is a space or tab, look ahead to see if 75507c478bd9Sstevel@tonic-gate * there's another terminator that's not a space or a tab. 75517c478bd9Sstevel@tonic-gate * (This code handles trailing spaces.) 75527c478bd9Sstevel@tonic-gate */ 75537c478bd9Sstevel@tonic-gate if (*cp == ' ' || *cp == '\t') { 75547c478bd9Sstevel@tonic-gate cp1 = cp; 75557c478bd9Sstevel@tonic-gate while (*++cp1 == ' ' || *cp1 == '\t') 75567c478bd9Sstevel@tonic-gate ; 75577c478bd9Sstevel@tonic-gate if (*cp1 == '=' || *cp1 == ':' || *cp1 == '&' || *cp1 == '|' || 75580a653502Swroche *cp1 == ';' || *cp1 == '\n' || *cp1 == '\0') { 7559a3ab7e85SToomas Soome *cp = '\0'; /* terminate token */ 75607c478bd9Sstevel@tonic-gate cp = cp1; 75617c478bd9Sstevel@tonic-gate } 75627c478bd9Sstevel@tonic-gate } 75637c478bd9Sstevel@tonic-gate if (tchar != NULL) { 75647c478bd9Sstevel@tonic-gate *tchar = *cp; /* save terminating character */ 75657c478bd9Sstevel@tonic-gate if (*tchar == '\0') { 75667c478bd9Sstevel@tonic-gate *tchar = '\n'; 75677c478bd9Sstevel@tonic-gate } 75687c478bd9Sstevel@tonic-gate } 75697c478bd9Sstevel@tonic-gate *cp++ = '\0'; /* terminate token, point to next */ 75707c478bd9Sstevel@tonic-gate *nextp = cp; /* set pointer to next character */ 75717c478bd9Sstevel@tonic-gate if (cp - tokenp - 1 == 0) { 75727c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 75737c478bd9Sstevel@tonic-gate } 75747c478bd9Sstevel@tonic-gate *tokenpp = tokenp; 75757c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 75767c478bd9Sstevel@tonic-gate } 75777c478bd9Sstevel@tonic-gate 75787c478bd9Sstevel@tonic-gate /* 75797c478bd9Sstevel@tonic-gate * read or reread the driver aliases file 75807c478bd9Sstevel@tonic-gate */ 75817c478bd9Sstevel@tonic-gate static void 75827c478bd9Sstevel@tonic-gate read_driver_aliases_file(void) 75837c478bd9Sstevel@tonic-gate { 75847c478bd9Sstevel@tonic-gate 75857c478bd9Sstevel@tonic-gate driver_alias_t *save; 75867c478bd9Sstevel@tonic-gate driver_alias_t *lst_tail; 75877c478bd9Sstevel@tonic-gate driver_alias_t *ap; 75887c478bd9Sstevel@tonic-gate static int cached = FALSE; 75897c478bd9Sstevel@tonic-gate FILE *afd; 75907c478bd9Sstevel@tonic-gate char line[256]; 75917c478bd9Sstevel@tonic-gate char *cp; 75927c478bd9Sstevel@tonic-gate char *p; 75937c478bd9Sstevel@tonic-gate char t; 75947c478bd9Sstevel@tonic-gate int ln = 0; 75957c478bd9Sstevel@tonic-gate static struct stat cached_sb; 75967c478bd9Sstevel@tonic-gate struct stat current_sb; 75977c478bd9Sstevel@tonic-gate 75987c478bd9Sstevel@tonic-gate (void) stat(ALIASFILE, ¤t_sb); 75997c478bd9Sstevel@tonic-gate 76007c478bd9Sstevel@tonic-gate /* If already cached, check to see if it is still valid */ 76017c478bd9Sstevel@tonic-gate if (cached == TRUE) { 76027c478bd9Sstevel@tonic-gate 76037c478bd9Sstevel@tonic-gate if (current_sb.st_mtime == cached_sb.st_mtime) { 76047c478bd9Sstevel@tonic-gate vprint(FILES_MID, "%s cache valid\n", ALIASFILE); 76057c478bd9Sstevel@tonic-gate return; 76067c478bd9Sstevel@tonic-gate } 76077c478bd9Sstevel@tonic-gate 76087c478bd9Sstevel@tonic-gate vprint(FILES_MID, "invalidating %s cache\n", ALIASFILE); 76097c478bd9Sstevel@tonic-gate while (driver_aliases != NULL) { 76107c478bd9Sstevel@tonic-gate free(driver_aliases->alias_name); 76117c478bd9Sstevel@tonic-gate free(driver_aliases->driver_name); 76127c478bd9Sstevel@tonic-gate save = driver_aliases; 76137c478bd9Sstevel@tonic-gate driver_aliases = driver_aliases->next; 76147c478bd9Sstevel@tonic-gate free(save); 76157c478bd9Sstevel@tonic-gate } 76167c478bd9Sstevel@tonic-gate } else { 76177c478bd9Sstevel@tonic-gate cached = TRUE; 76187c478bd9Sstevel@tonic-gate } 76197c478bd9Sstevel@tonic-gate 76207c478bd9Sstevel@tonic-gate (void) stat(ALIASFILE, &cached_sb); 76217c478bd9Sstevel@tonic-gate 76227c478bd9Sstevel@tonic-gate vprint(FILES_MID, "loading binding file: %s\n", ALIASFILE); 76237c478bd9Sstevel@tonic-gate 76247c478bd9Sstevel@tonic-gate if ((afd = fopen(ALIASFILE, "r")) == NULL) { 76257c478bd9Sstevel@tonic-gate err_print(FOPEN_FAILED, ALIASFILE, strerror(errno)); 76267c478bd9Sstevel@tonic-gate devfsadm_exit(1); 7627537714daSvikram /*NOTREACHED*/ 76287c478bd9Sstevel@tonic-gate } 76297c478bd9Sstevel@tonic-gate 76301ca93273Seota while (fgets(line, sizeof (line), afd) != NULL) { 76317c478bd9Sstevel@tonic-gate ln++; 76321ca93273Seota /* cut off comments starting with '#' */ 76331ca93273Seota if ((cp = strchr(line, '#')) != NULL) 76341ca93273Seota *cp = '\0'; 76351ca93273Seota /* ignore comment or blank lines */ 76361ca93273Seota if (is_blank(line)) 76371ca93273Seota continue; 76387c478bd9Sstevel@tonic-gate cp = line; 76397c478bd9Sstevel@tonic-gate if (getnexttoken(cp, &cp, &p, &t) == DEVFSADM_FAILURE) { 76407c478bd9Sstevel@tonic-gate err_print(IGNORING_LINE_IN, ln, ALIASFILE); 76417c478bd9Sstevel@tonic-gate continue; 76427c478bd9Sstevel@tonic-gate } 76437c478bd9Sstevel@tonic-gate if (t == '\n' || t == '\0') { 76447c478bd9Sstevel@tonic-gate err_print(DRV_BUT_NO_ALIAS, ln, ALIASFILE); 76457c478bd9Sstevel@tonic-gate continue; 76467c478bd9Sstevel@tonic-gate } 76477c478bd9Sstevel@tonic-gate ap = (struct driver_alias *) 76480a653502Swroche s_zalloc(sizeof (struct driver_alias)); 76497c478bd9Sstevel@tonic-gate ap->driver_name = s_strdup(p); 76507c478bd9Sstevel@tonic-gate if (getnexttoken(cp, &cp, &p, &t) == DEVFSADM_FAILURE) { 76517c478bd9Sstevel@tonic-gate err_print(DRV_BUT_NO_ALIAS, ln, ALIASFILE); 76527c478bd9Sstevel@tonic-gate free(ap->driver_name); 76537c478bd9Sstevel@tonic-gate free(ap); 76547c478bd9Sstevel@tonic-gate continue; 76557c478bd9Sstevel@tonic-gate } 76567c478bd9Sstevel@tonic-gate if (*p == '"') { 76577c478bd9Sstevel@tonic-gate if (p[strlen(p) - 1] == '"') { 76587c478bd9Sstevel@tonic-gate p[strlen(p) - 1] = '\0'; 76597c478bd9Sstevel@tonic-gate p++; 76607c478bd9Sstevel@tonic-gate } 76617c478bd9Sstevel@tonic-gate } 76627c478bd9Sstevel@tonic-gate ap->alias_name = s_strdup(p); 76637c478bd9Sstevel@tonic-gate if (driver_aliases == NULL) { 76647c478bd9Sstevel@tonic-gate driver_aliases = ap; 76657c478bd9Sstevel@tonic-gate lst_tail = ap; 76667c478bd9Sstevel@tonic-gate } else { 76677c478bd9Sstevel@tonic-gate lst_tail->next = ap; 76687c478bd9Sstevel@tonic-gate lst_tail = ap; 76697c478bd9Sstevel@tonic-gate } 76707c478bd9Sstevel@tonic-gate } 76717c478bd9Sstevel@tonic-gate if (fclose(afd) == EOF) { 76727c478bd9Sstevel@tonic-gate err_print(FCLOSE_FAILED, ALIASFILE, strerror(errno)); 76737c478bd9Sstevel@tonic-gate } 76747c478bd9Sstevel@tonic-gate } 76757c478bd9Sstevel@tonic-gate 76767c478bd9Sstevel@tonic-gate /* 76777c478bd9Sstevel@tonic-gate * return TRUE if alias_name is an alias for driver_name, otherwise 76787c478bd9Sstevel@tonic-gate * return FALSE. 76797c478bd9Sstevel@tonic-gate */ 76807c478bd9Sstevel@tonic-gate static int 76817c478bd9Sstevel@tonic-gate alias(char *driver_name, char *alias_name) 76827c478bd9Sstevel@tonic-gate { 76837c478bd9Sstevel@tonic-gate driver_alias_t *alias; 76847c478bd9Sstevel@tonic-gate 76857c478bd9Sstevel@tonic-gate /* 76867c478bd9Sstevel@tonic-gate * check for a match 76877c478bd9Sstevel@tonic-gate */ 76887c478bd9Sstevel@tonic-gate for (alias = driver_aliases; alias != NULL; alias = alias->next) { 76897c478bd9Sstevel@tonic-gate if ((strcmp(alias->driver_name, driver_name) == 0) && 76907c478bd9Sstevel@tonic-gate (strcmp(alias->alias_name, alias_name) == 0)) { 76917c478bd9Sstevel@tonic-gate return (TRUE); 76927c478bd9Sstevel@tonic-gate } 76937c478bd9Sstevel@tonic-gate } 76947c478bd9Sstevel@tonic-gate return (FALSE); 76957c478bd9Sstevel@tonic-gate } 76967c478bd9Sstevel@tonic-gate 76977c478bd9Sstevel@tonic-gate /* 76987c478bd9Sstevel@tonic-gate * convenience functions 76997c478bd9Sstevel@tonic-gate */ 7700facf4a8dSllai static int 7701facf4a8dSllai s_stat(const char *path, struct stat *sbufp) 7702facf4a8dSllai { 7703facf4a8dSllai int rv; 7704facf4a8dSllai retry: 7705facf4a8dSllai if ((rv = stat(path, sbufp)) == -1) { 7706facf4a8dSllai if (errno == EINTR) 7707facf4a8dSllai goto retry; 7708facf4a8dSllai } 7709facf4a8dSllai return (rv); 7710facf4a8dSllai } 7711facf4a8dSllai 77127c478bd9Sstevel@tonic-gate static void * 77137c478bd9Sstevel@tonic-gate s_malloc(const size_t size) 77147c478bd9Sstevel@tonic-gate { 77157c478bd9Sstevel@tonic-gate void *rp; 77167c478bd9Sstevel@tonic-gate 77177c478bd9Sstevel@tonic-gate rp = malloc(size); 77187c478bd9Sstevel@tonic-gate if (rp == NULL) { 77197c478bd9Sstevel@tonic-gate err_print(MALLOC_FAILED, size); 77207c478bd9Sstevel@tonic-gate devfsadm_exit(1); 7721537714daSvikram /*NOTREACHED*/ 77227c478bd9Sstevel@tonic-gate } 77237c478bd9Sstevel@tonic-gate return (rp); 77247c478bd9Sstevel@tonic-gate } 77257c478bd9Sstevel@tonic-gate 77267c478bd9Sstevel@tonic-gate /* 77277c478bd9Sstevel@tonic-gate * convenience functions 77287c478bd9Sstevel@tonic-gate */ 77297c478bd9Sstevel@tonic-gate static void * 77307c478bd9Sstevel@tonic-gate s_realloc(void *ptr, const size_t size) 77317c478bd9Sstevel@tonic-gate { 77327c478bd9Sstevel@tonic-gate ptr = realloc(ptr, size); 77337c478bd9Sstevel@tonic-gate if (ptr == NULL) { 77347c478bd9Sstevel@tonic-gate err_print(REALLOC_FAILED, size); 77357c478bd9Sstevel@tonic-gate devfsadm_exit(1); 7736537714daSvikram /*NOTREACHED*/ 77377c478bd9Sstevel@tonic-gate } 77387c478bd9Sstevel@tonic-gate return (ptr); 77397c478bd9Sstevel@tonic-gate } 77407c478bd9Sstevel@tonic-gate 77417c478bd9Sstevel@tonic-gate static void * 77427c478bd9Sstevel@tonic-gate s_zalloc(const size_t size) 77437c478bd9Sstevel@tonic-gate { 77447c478bd9Sstevel@tonic-gate void *rp; 77457c478bd9Sstevel@tonic-gate 77467c478bd9Sstevel@tonic-gate rp = calloc(1, size); 77477c478bd9Sstevel@tonic-gate if (rp == NULL) { 77487c478bd9Sstevel@tonic-gate err_print(CALLOC_FAILED, size); 77497c478bd9Sstevel@tonic-gate devfsadm_exit(1); 7750537714daSvikram /*NOTREACHED*/ 77517c478bd9Sstevel@tonic-gate } 77527c478bd9Sstevel@tonic-gate return (rp); 77537c478bd9Sstevel@tonic-gate } 77547c478bd9Sstevel@tonic-gate 77557c478bd9Sstevel@tonic-gate char * 77567c478bd9Sstevel@tonic-gate s_strdup(const char *ptr) 77577c478bd9Sstevel@tonic-gate { 77587c478bd9Sstevel@tonic-gate void *rp; 77597c478bd9Sstevel@tonic-gate 77607c478bd9Sstevel@tonic-gate rp = strdup(ptr); 77617c478bd9Sstevel@tonic-gate if (rp == NULL) { 77627c478bd9Sstevel@tonic-gate err_print(STRDUP_FAILED, ptr); 77637c478bd9Sstevel@tonic-gate devfsadm_exit(1); 7764537714daSvikram /*NOTREACHED*/ 77657c478bd9Sstevel@tonic-gate } 77667c478bd9Sstevel@tonic-gate return (rp); 77677c478bd9Sstevel@tonic-gate } 77687c478bd9Sstevel@tonic-gate 77697c478bd9Sstevel@tonic-gate static void 77707c478bd9Sstevel@tonic-gate s_closedir(DIR *dirp) 77717c478bd9Sstevel@tonic-gate { 77727c478bd9Sstevel@tonic-gate retry: 77737c478bd9Sstevel@tonic-gate if (closedir(dirp) != 0) { 77747c478bd9Sstevel@tonic-gate if (errno == EINTR) 77757c478bd9Sstevel@tonic-gate goto retry; 77767c478bd9Sstevel@tonic-gate err_print(CLOSEDIR_FAILED, strerror(errno)); 77777c478bd9Sstevel@tonic-gate } 77787c478bd9Sstevel@tonic-gate } 77797c478bd9Sstevel@tonic-gate 77807c478bd9Sstevel@tonic-gate static void 77817c478bd9Sstevel@tonic-gate s_mkdirp(const char *path, const mode_t mode) 77827c478bd9Sstevel@tonic-gate { 77837c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "mkdirp(%s, 0x%lx)\n", path, mode); 77847c478bd9Sstevel@tonic-gate if (mkdirp(path, mode) == -1) { 77857c478bd9Sstevel@tonic-gate if (errno != EEXIST) { 77867c478bd9Sstevel@tonic-gate err_print(MKDIR_FAILED, path, mode, strerror(errno)); 77877c478bd9Sstevel@tonic-gate } 77887c478bd9Sstevel@tonic-gate } 77897c478bd9Sstevel@tonic-gate } 77907c478bd9Sstevel@tonic-gate 77917c478bd9Sstevel@tonic-gate static void 77927c478bd9Sstevel@tonic-gate s_unlink(const char *file) 77937c478bd9Sstevel@tonic-gate { 77947c478bd9Sstevel@tonic-gate retry: 77957c478bd9Sstevel@tonic-gate if (unlink(file) == -1) { 77967c478bd9Sstevel@tonic-gate if (errno == EINTR || errno == EAGAIN) 77977c478bd9Sstevel@tonic-gate goto retry; 77987c478bd9Sstevel@tonic-gate if (errno != ENOENT) { 77997c478bd9Sstevel@tonic-gate err_print(UNLINK_FAILED, file, strerror(errno)); 78007c478bd9Sstevel@tonic-gate } 78017c478bd9Sstevel@tonic-gate } 78027c478bd9Sstevel@tonic-gate } 78037c478bd9Sstevel@tonic-gate 78047c478bd9Sstevel@tonic-gate static void 78057c478bd9Sstevel@tonic-gate add_verbose_id(char *mid) 78067c478bd9Sstevel@tonic-gate { 78077c478bd9Sstevel@tonic-gate num_verbose++; 78087c478bd9Sstevel@tonic-gate verbose = s_realloc(verbose, num_verbose * sizeof (char *)); 78097c478bd9Sstevel@tonic-gate verbose[num_verbose - 1] = mid; 78107c478bd9Sstevel@tonic-gate } 78117c478bd9Sstevel@tonic-gate 78127c478bd9Sstevel@tonic-gate /* 78137c478bd9Sstevel@tonic-gate * returns DEVFSADM_TRUE if contents is a minor node in /devices. 78147c478bd9Sstevel@tonic-gate * If mn_root is not NULL, mn_root is set to: 78157c478bd9Sstevel@tonic-gate * if contents is a /dev node, mn_root = contents 7816f2dbfd32SRobert Mustacchi * OR 78177c478bd9Sstevel@tonic-gate * if contents is a /devices node, mn_root set to the '/' 78187c478bd9Sstevel@tonic-gate * following /devices. 78197c478bd9Sstevel@tonic-gate */ 78207c478bd9Sstevel@tonic-gate static int 78217c478bd9Sstevel@tonic-gate is_minor_node(char *contents, char **mn_root) 78227c478bd9Sstevel@tonic-gate { 78237c478bd9Sstevel@tonic-gate char *ptr; 78247c478bd9Sstevel@tonic-gate char device_prefix[100]; 78257c478bd9Sstevel@tonic-gate 78267c478bd9Sstevel@tonic-gate (void) snprintf(device_prefix, sizeof (device_prefix), "../devices/"); 78277c478bd9Sstevel@tonic-gate 78287c478bd9Sstevel@tonic-gate if ((ptr = strstr(contents, device_prefix)) != NULL) { 78297c478bd9Sstevel@tonic-gate if (mn_root != NULL) { 78307c478bd9Sstevel@tonic-gate /* mn_root should point to the / following /devices */ 78317c478bd9Sstevel@tonic-gate *mn_root = ptr += strlen(device_prefix) - 1; 78327c478bd9Sstevel@tonic-gate } 78337c478bd9Sstevel@tonic-gate return (DEVFSADM_TRUE); 78347c478bd9Sstevel@tonic-gate } 78357c478bd9Sstevel@tonic-gate 78367c478bd9Sstevel@tonic-gate (void) snprintf(device_prefix, sizeof (device_prefix), "/devices/"); 78377c478bd9Sstevel@tonic-gate 78387c478bd9Sstevel@tonic-gate if (strncmp(contents, device_prefix, strlen(device_prefix)) == 0) { 78397c478bd9Sstevel@tonic-gate if (mn_root != NULL) { 78407c478bd9Sstevel@tonic-gate /* mn_root should point to the / following /devices */ 78417c478bd9Sstevel@tonic-gate *mn_root = contents + strlen(device_prefix) - 1; 78427c478bd9Sstevel@tonic-gate } 78437c478bd9Sstevel@tonic-gate return (DEVFSADM_TRUE); 78447c478bd9Sstevel@tonic-gate } 78457c478bd9Sstevel@tonic-gate 78467c478bd9Sstevel@tonic-gate if (mn_root != NULL) { 78477c478bd9Sstevel@tonic-gate *mn_root = contents; 78487c478bd9Sstevel@tonic-gate } 78497c478bd9Sstevel@tonic-gate return (DEVFSADM_FALSE); 78507c478bd9Sstevel@tonic-gate } 78517c478bd9Sstevel@tonic-gate 78527c478bd9Sstevel@tonic-gate /* 78537c478bd9Sstevel@tonic-gate * Add the specified property to nvl. 78547c478bd9Sstevel@tonic-gate * Returns: 78557c478bd9Sstevel@tonic-gate * 0 successfully added 78567c478bd9Sstevel@tonic-gate * -1 an error occurred 78577c478bd9Sstevel@tonic-gate * 1 could not add the property for reasons not due to errors. 78587c478bd9Sstevel@tonic-gate */ 78597c478bd9Sstevel@tonic-gate static int 78607c478bd9Sstevel@tonic-gate add_property(nvlist_t *nvl, di_prop_t prop) 78617c478bd9Sstevel@tonic-gate { 78627c478bd9Sstevel@tonic-gate char *name; 78637c478bd9Sstevel@tonic-gate char *attr_name; 78647c478bd9Sstevel@tonic-gate int n, len; 78657c478bd9Sstevel@tonic-gate int32_t *int32p; 78667c478bd9Sstevel@tonic-gate int64_t *int64p; 78677c478bd9Sstevel@tonic-gate char *str; 78687c478bd9Sstevel@tonic-gate char **strarray; 78697c478bd9Sstevel@tonic-gate uchar_t *bytep; 78707c478bd9Sstevel@tonic-gate int rv = 0; 78717c478bd9Sstevel@tonic-gate int i; 78727c478bd9Sstevel@tonic-gate 78737c478bd9Sstevel@tonic-gate if ((name = di_prop_name(prop)) == NULL) 78747c478bd9Sstevel@tonic-gate return (-1); 78757c478bd9Sstevel@tonic-gate 78767c478bd9Sstevel@tonic-gate len = sizeof (DEV_PROP_PREFIX) + strlen(name); 78777c478bd9Sstevel@tonic-gate if ((attr_name = malloc(len)) == NULL) 78787c478bd9Sstevel@tonic-gate return (-1); 78797c478bd9Sstevel@tonic-gate 78807c478bd9Sstevel@tonic-gate (void) strlcpy(attr_name, DEV_PROP_PREFIX, len); 78817c478bd9Sstevel@tonic-gate (void) strlcat(attr_name, name, len); 78827c478bd9Sstevel@tonic-gate 78837c478bd9Sstevel@tonic-gate switch (di_prop_type(prop)) { 78847c478bd9Sstevel@tonic-gate case DI_PROP_TYPE_BOOLEAN: 78857c478bd9Sstevel@tonic-gate if (nvlist_add_boolean(nvl, attr_name) != 0) 78867c478bd9Sstevel@tonic-gate goto out; 78877c478bd9Sstevel@tonic-gate break; 78887c478bd9Sstevel@tonic-gate 78897c478bd9Sstevel@tonic-gate case DI_PROP_TYPE_INT: 78907c478bd9Sstevel@tonic-gate if ((n = di_prop_ints(prop, &int32p)) < 1) 78917c478bd9Sstevel@tonic-gate goto out; 78927c478bd9Sstevel@tonic-gate 78937c478bd9Sstevel@tonic-gate if (n <= (PROP_LEN_LIMIT / sizeof (int32_t))) { 78947c478bd9Sstevel@tonic-gate if (nvlist_add_int32_array(nvl, attr_name, int32p, 78957c478bd9Sstevel@tonic-gate n) != 0) 78967c478bd9Sstevel@tonic-gate goto out; 78977c478bd9Sstevel@tonic-gate } else 78987c478bd9Sstevel@tonic-gate rv = 1; 78997c478bd9Sstevel@tonic-gate break; 79007c478bd9Sstevel@tonic-gate 79017c478bd9Sstevel@tonic-gate case DI_PROP_TYPE_INT64: 79027c478bd9Sstevel@tonic-gate if ((n = di_prop_int64(prop, &int64p)) < 1) 79037c478bd9Sstevel@tonic-gate goto out; 79047c478bd9Sstevel@tonic-gate 79057c478bd9Sstevel@tonic-gate if (n <= (PROP_LEN_LIMIT / sizeof (int64_t))) { 79067c478bd9Sstevel@tonic-gate if (nvlist_add_int64_array(nvl, attr_name, int64p, 79077c478bd9Sstevel@tonic-gate n) != 0) 79087c478bd9Sstevel@tonic-gate goto out; 79097c478bd9Sstevel@tonic-gate } else 79107c478bd9Sstevel@tonic-gate rv = 1; 79117c478bd9Sstevel@tonic-gate break; 79127c478bd9Sstevel@tonic-gate 79137c478bd9Sstevel@tonic-gate case DI_PROP_TYPE_BYTE: 79147c478bd9Sstevel@tonic-gate case DI_PROP_TYPE_UNKNOWN: 79157c478bd9Sstevel@tonic-gate if ((n = di_prop_bytes(prop, &bytep)) < 1) 79167c478bd9Sstevel@tonic-gate goto out; 79177c478bd9Sstevel@tonic-gate 79187c478bd9Sstevel@tonic-gate if (n <= PROP_LEN_LIMIT) { 79197c478bd9Sstevel@tonic-gate if (nvlist_add_byte_array(nvl, attr_name, bytep, n) 79207c478bd9Sstevel@tonic-gate != 0) 79217c478bd9Sstevel@tonic-gate goto out; 79227c478bd9Sstevel@tonic-gate } else 79237c478bd9Sstevel@tonic-gate rv = 1; 79247c478bd9Sstevel@tonic-gate break; 79257c478bd9Sstevel@tonic-gate 79267c478bd9Sstevel@tonic-gate case DI_PROP_TYPE_STRING: 79277c478bd9Sstevel@tonic-gate if ((n = di_prop_strings(prop, &str)) < 1) 79287c478bd9Sstevel@tonic-gate goto out; 79297c478bd9Sstevel@tonic-gate 79307c478bd9Sstevel@tonic-gate if ((strarray = malloc(n * sizeof (char *))) == NULL) 79317c478bd9Sstevel@tonic-gate goto out; 79327c478bd9Sstevel@tonic-gate 79337c478bd9Sstevel@tonic-gate len = 0; 79347c478bd9Sstevel@tonic-gate for (i = 0; i < n; i++) { 79357c478bd9Sstevel@tonic-gate strarray[i] = str + len; 79367c478bd9Sstevel@tonic-gate len += strlen(strarray[i]) + 1; 79377c478bd9Sstevel@tonic-gate } 79387c478bd9Sstevel@tonic-gate 79397c478bd9Sstevel@tonic-gate if (len <= PROP_LEN_LIMIT) { 79407c478bd9Sstevel@tonic-gate if (nvlist_add_string_array(nvl, attr_name, strarray, 79417c478bd9Sstevel@tonic-gate n) != 0) { 79427c478bd9Sstevel@tonic-gate free(strarray); 79437c478bd9Sstevel@tonic-gate goto out; 79447c478bd9Sstevel@tonic-gate } 79457c478bd9Sstevel@tonic-gate } else 79467c478bd9Sstevel@tonic-gate rv = 1; 79477c478bd9Sstevel@tonic-gate free(strarray); 79487c478bd9Sstevel@tonic-gate break; 79497c478bd9Sstevel@tonic-gate 79507c478bd9Sstevel@tonic-gate default: 79517c478bd9Sstevel@tonic-gate rv = 1; 79527c478bd9Sstevel@tonic-gate break; 79537c478bd9Sstevel@tonic-gate } 79547c478bd9Sstevel@tonic-gate 79557c478bd9Sstevel@tonic-gate free(attr_name); 79567c478bd9Sstevel@tonic-gate return (rv); 79577c478bd9Sstevel@tonic-gate 79587c478bd9Sstevel@tonic-gate out: 79597c478bd9Sstevel@tonic-gate free(attr_name); 79607c478bd9Sstevel@tonic-gate return (-1); 79617c478bd9Sstevel@tonic-gate } 79627c478bd9Sstevel@tonic-gate 79637c478bd9Sstevel@tonic-gate static void 79647c478bd9Sstevel@tonic-gate free_dev_names(struct devlink_cb_arg *x) 79657c478bd9Sstevel@tonic-gate { 79667c478bd9Sstevel@tonic-gate int i; 79677c478bd9Sstevel@tonic-gate 79687c478bd9Sstevel@tonic-gate for (i = 0; i < x->count; i++) { 79697c478bd9Sstevel@tonic-gate free(x->dev_names[i]); 79707c478bd9Sstevel@tonic-gate free(x->link_contents[i]); 79717c478bd9Sstevel@tonic-gate } 79727c478bd9Sstevel@tonic-gate } 79737c478bd9Sstevel@tonic-gate 79747c478bd9Sstevel@tonic-gate /* callback function for di_devlink_cache_walk */ 79757c478bd9Sstevel@tonic-gate static int 79767c478bd9Sstevel@tonic-gate devlink_cb(di_devlink_t dl, void *arg) 79777c478bd9Sstevel@tonic-gate { 79787c478bd9Sstevel@tonic-gate struct devlink_cb_arg *x = (struct devlink_cb_arg *)arg; 79797c478bd9Sstevel@tonic-gate const char *path; 79807c478bd9Sstevel@tonic-gate const char *content; 79817c478bd9Sstevel@tonic-gate 79827c478bd9Sstevel@tonic-gate if ((path = di_devlink_path(dl)) == NULL || 79837c478bd9Sstevel@tonic-gate (content = di_devlink_content(dl)) == NULL || 798412d8cf2aSjg (x->dev_names[x->count] = s_strdup(path)) == NULL) 79857c478bd9Sstevel@tonic-gate goto out; 79867c478bd9Sstevel@tonic-gate 798712d8cf2aSjg if ((x->link_contents[x->count] = s_strdup(content)) == NULL) { 79887c478bd9Sstevel@tonic-gate free(x->dev_names[x->count]); 79897c478bd9Sstevel@tonic-gate goto out; 79907c478bd9Sstevel@tonic-gate } 79917c478bd9Sstevel@tonic-gate 79927c478bd9Sstevel@tonic-gate x->count++; 79937c478bd9Sstevel@tonic-gate if (x->count >= MAX_DEV_NAME_COUNT) 79947c478bd9Sstevel@tonic-gate return (DI_WALK_TERMINATE); 79957c478bd9Sstevel@tonic-gate 79967c478bd9Sstevel@tonic-gate return (DI_WALK_CONTINUE); 79977c478bd9Sstevel@tonic-gate 79987c478bd9Sstevel@tonic-gate out: 79997c478bd9Sstevel@tonic-gate x->rv = -1; 80007c478bd9Sstevel@tonic-gate free_dev_names(x); 80017c478bd9Sstevel@tonic-gate return (DI_WALK_TERMINATE); 80027c478bd9Sstevel@tonic-gate } 80037c478bd9Sstevel@tonic-gate 80047c478bd9Sstevel@tonic-gate /* 80057c478bd9Sstevel@tonic-gate * Lookup dev name corresponding to the phys_path. 80067c478bd9Sstevel@tonic-gate * phys_path is path to a node or minor node. 80077c478bd9Sstevel@tonic-gate * Returns: 80087c478bd9Sstevel@tonic-gate * 0 with *dev_name set to the dev name 80097c478bd9Sstevel@tonic-gate * Lookup succeeded and dev_name found 80107c478bd9Sstevel@tonic-gate * 0 with *dev_name set to NULL 80117c478bd9Sstevel@tonic-gate * Lookup encountered no errors but dev name not found 80127c478bd9Sstevel@tonic-gate * -1 80137c478bd9Sstevel@tonic-gate * Lookup failed 80147c478bd9Sstevel@tonic-gate */ 80157c478bd9Sstevel@tonic-gate static int 80167c478bd9Sstevel@tonic-gate lookup_dev_name(char *phys_path, char **dev_name) 80177c478bd9Sstevel@tonic-gate { 80187c478bd9Sstevel@tonic-gate struct devlink_cb_arg cb_arg; 80197c478bd9Sstevel@tonic-gate 80207c478bd9Sstevel@tonic-gate *dev_name = NULL; 80217c478bd9Sstevel@tonic-gate 80227c478bd9Sstevel@tonic-gate cb_arg.count = 0; 80237c478bd9Sstevel@tonic-gate cb_arg.rv = 0; 80247c478bd9Sstevel@tonic-gate (void) di_devlink_cache_walk(devlink_cache, NULL, phys_path, 80257c478bd9Sstevel@tonic-gate DI_PRIMARY_LINK, &cb_arg, devlink_cb); 80267c478bd9Sstevel@tonic-gate 80277c478bd9Sstevel@tonic-gate if (cb_arg.rv == -1) 80287c478bd9Sstevel@tonic-gate return (-1); 80297c478bd9Sstevel@tonic-gate 80307c478bd9Sstevel@tonic-gate if (cb_arg.count > 0) { 803112d8cf2aSjg *dev_name = s_strdup(cb_arg.dev_names[0]); 80327c478bd9Sstevel@tonic-gate free_dev_names(&cb_arg); 80337c478bd9Sstevel@tonic-gate if (*dev_name == NULL) 80347c478bd9Sstevel@tonic-gate return (-1); 80357c478bd9Sstevel@tonic-gate } 80367c478bd9Sstevel@tonic-gate 80377c478bd9Sstevel@tonic-gate return (0); 80387c478bd9Sstevel@tonic-gate } 80397c478bd9Sstevel@tonic-gate 80407c478bd9Sstevel@tonic-gate static char * 80417c478bd9Sstevel@tonic-gate lookup_disk_dev_name(char *node_path) 80427c478bd9Sstevel@tonic-gate { 80437c478bd9Sstevel@tonic-gate struct devlink_cb_arg cb_arg; 80447c478bd9Sstevel@tonic-gate char *dev_name = NULL; 80457c478bd9Sstevel@tonic-gate int i; 80467c478bd9Sstevel@tonic-gate char *p; 80477c478bd9Sstevel@tonic-gate int len1, len2; 80487c478bd9Sstevel@tonic-gate 80497c478bd9Sstevel@tonic-gate #define DEV_RDSK "/dev/rdsk/" 80507c478bd9Sstevel@tonic-gate #define DISK_RAW_MINOR ",raw" 80517c478bd9Sstevel@tonic-gate 80527c478bd9Sstevel@tonic-gate cb_arg.count = 0; 80537c478bd9Sstevel@tonic-gate cb_arg.rv = 0; 80547c478bd9Sstevel@tonic-gate (void) di_devlink_cache_walk(devlink_cache, NULL, node_path, 80557c478bd9Sstevel@tonic-gate DI_PRIMARY_LINK, &cb_arg, devlink_cb); 80567c478bd9Sstevel@tonic-gate 80577c478bd9Sstevel@tonic-gate if (cb_arg.rv == -1 || cb_arg.count == 0) 80587c478bd9Sstevel@tonic-gate return (NULL); 80597c478bd9Sstevel@tonic-gate 80607c478bd9Sstevel@tonic-gate /* first try lookup based on /dev/rdsk name */ 80617c478bd9Sstevel@tonic-gate for (i = 0; i < cb_arg.count; i++) { 80627c478bd9Sstevel@tonic-gate if (strncmp(cb_arg.dev_names[i], DEV_RDSK, 80637c478bd9Sstevel@tonic-gate sizeof (DEV_RDSK) - 1) == 0) { 806412d8cf2aSjg dev_name = s_strdup(cb_arg.dev_names[i]); 80657c478bd9Sstevel@tonic-gate break; 80667c478bd9Sstevel@tonic-gate } 80677c478bd9Sstevel@tonic-gate } 80687c478bd9Sstevel@tonic-gate 80697c478bd9Sstevel@tonic-gate if (dev_name == NULL) { 80707c478bd9Sstevel@tonic-gate /* now try lookup based on a minor name ending with ",raw" */ 80717c478bd9Sstevel@tonic-gate len1 = sizeof (DISK_RAW_MINOR) - 1; 80727c478bd9Sstevel@tonic-gate for (i = 0; i < cb_arg.count; i++) { 80737c478bd9Sstevel@tonic-gate len2 = strlen(cb_arg.link_contents[i]); 80747c478bd9Sstevel@tonic-gate if (len2 >= len1 && 80757c478bd9Sstevel@tonic-gate strcmp(cb_arg.link_contents[i] + len2 - len1, 80767c478bd9Sstevel@tonic-gate DISK_RAW_MINOR) == 0) { 807712d8cf2aSjg dev_name = s_strdup(cb_arg.dev_names[i]); 80787c478bd9Sstevel@tonic-gate break; 80797c478bd9Sstevel@tonic-gate } 80807c478bd9Sstevel@tonic-gate } 80817c478bd9Sstevel@tonic-gate } 80827c478bd9Sstevel@tonic-gate 80837c478bd9Sstevel@tonic-gate free_dev_names(&cb_arg); 80847c478bd9Sstevel@tonic-gate 808512d8cf2aSjg if (dev_name == NULL) 808612d8cf2aSjg return (NULL); 80877c478bd9Sstevel@tonic-gate if (strlen(dev_name) == 0) { 80887c478bd9Sstevel@tonic-gate free(dev_name); 80897c478bd9Sstevel@tonic-gate return (NULL); 80907c478bd9Sstevel@tonic-gate } 80917c478bd9Sstevel@tonic-gate 80927c478bd9Sstevel@tonic-gate /* if the name contains slice or partition number strip it */ 80937c478bd9Sstevel@tonic-gate p = dev_name + strlen(dev_name) - 1; 80947c478bd9Sstevel@tonic-gate if (isdigit(*p)) { 80957c478bd9Sstevel@tonic-gate while (p != dev_name && isdigit(*p)) 80967c478bd9Sstevel@tonic-gate p--; 80977c478bd9Sstevel@tonic-gate if (*p == 's' || *p == 'p') 80987c478bd9Sstevel@tonic-gate *p = '\0'; 80997c478bd9Sstevel@tonic-gate } 81007c478bd9Sstevel@tonic-gate 81017c478bd9Sstevel@tonic-gate return (dev_name); 81027c478bd9Sstevel@tonic-gate } 81037c478bd9Sstevel@tonic-gate 810430294554Sphitran static char * 810530294554Sphitran lookup_lofi_dev_name(char *node_path, char *minor) 810630294554Sphitran { 810730294554Sphitran struct devlink_cb_arg cb_arg; 810830294554Sphitran char *dev_name = NULL; 810930294554Sphitran int i; 811030294554Sphitran int len1, len2; 811130294554Sphitran 811230294554Sphitran cb_arg.count = 0; 811330294554Sphitran cb_arg.rv = 0; 811430294554Sphitran (void) di_devlink_cache_walk(devlink_cache, NULL, node_path, 811530294554Sphitran DI_PRIMARY_LINK, &cb_arg, devlink_cb); 811630294554Sphitran 811730294554Sphitran if (cb_arg.rv == -1 || cb_arg.count == 0) 811830294554Sphitran return (NULL); 811930294554Sphitran 812030294554Sphitran /* lookup based on a minor name ending with ",raw" */ 812130294554Sphitran len1 = strlen(minor); 812230294554Sphitran for (i = 0; i < cb_arg.count; i++) { 812330294554Sphitran len2 = strlen(cb_arg.link_contents[i]); 812430294554Sphitran if (len2 >= len1 && 812530294554Sphitran strcmp(cb_arg.link_contents[i] + len2 - len1, 812630294554Sphitran minor) == 0) { 812730294554Sphitran dev_name = s_strdup(cb_arg.dev_names[i]); 812830294554Sphitran break; 812930294554Sphitran } 813030294554Sphitran } 813130294554Sphitran 813230294554Sphitran free_dev_names(&cb_arg); 813330294554Sphitran 813430294554Sphitran if (dev_name == NULL) 813530294554Sphitran return (NULL); 813630294554Sphitran if (strlen(dev_name) == 0) { 813730294554Sphitran free(dev_name); 813830294554Sphitran return (NULL); 813930294554Sphitran } 814030294554Sphitran 814130294554Sphitran return (dev_name); 814230294554Sphitran } 814330294554Sphitran 81447c478bd9Sstevel@tonic-gate static char * 81457c478bd9Sstevel@tonic-gate lookup_network_dev_name(char *node_path, char *driver_name) 81467c478bd9Sstevel@tonic-gate { 81477c478bd9Sstevel@tonic-gate char *dev_name = NULL; 81487c478bd9Sstevel@tonic-gate char phys_path[MAXPATHLEN]; 81497c478bd9Sstevel@tonic-gate 81507c478bd9Sstevel@tonic-gate if (lookup_dev_name(node_path, &dev_name) == -1) 81517c478bd9Sstevel@tonic-gate return (NULL); 81527c478bd9Sstevel@tonic-gate 81537c478bd9Sstevel@tonic-gate if (dev_name == NULL) { 81547c478bd9Sstevel@tonic-gate /* dlpi style-2 only interface */ 81557c478bd9Sstevel@tonic-gate (void) snprintf(phys_path, sizeof (phys_path), 81567c478bd9Sstevel@tonic-gate "/pseudo/clone@0:%s", driver_name); 81577c478bd9Sstevel@tonic-gate if (lookup_dev_name(phys_path, &dev_name) == -1 || 81587c478bd9Sstevel@tonic-gate dev_name == NULL) 81597c478bd9Sstevel@tonic-gate return (NULL); 81607c478bd9Sstevel@tonic-gate } 81617c478bd9Sstevel@tonic-gate 81627c478bd9Sstevel@tonic-gate return (dev_name); 81637c478bd9Sstevel@tonic-gate } 81647c478bd9Sstevel@tonic-gate 8165db11e6feSjacobs static char * 8166db11e6feSjacobs lookup_printer_dev_name(char *node_path) 8167db11e6feSjacobs { 8168db11e6feSjacobs struct devlink_cb_arg cb_arg; 8169db11e6feSjacobs char *dev_name = NULL; 8170db11e6feSjacobs int i; 8171db11e6feSjacobs 8172db11e6feSjacobs #define DEV_PRINTERS "/dev/printers/" 8173db11e6feSjacobs 8174db11e6feSjacobs cb_arg.count = 0; 8175db11e6feSjacobs cb_arg.rv = 0; 8176db11e6feSjacobs (void) di_devlink_cache_walk(devlink_cache, NULL, node_path, 8177db11e6feSjacobs DI_PRIMARY_LINK, &cb_arg, devlink_cb); 8178db11e6feSjacobs 8179db11e6feSjacobs if (cb_arg.rv == -1 || cb_arg.count == 0) 8180db11e6feSjacobs return (NULL); 8181db11e6feSjacobs 8182db11e6feSjacobs /* first try lookup based on /dev/printers name */ 8183db11e6feSjacobs for (i = 0; i < cb_arg.count; i++) { 8184db11e6feSjacobs if (strncmp(cb_arg.dev_names[i], DEV_PRINTERS, 8185db11e6feSjacobs sizeof (DEV_PRINTERS) - 1) == 0) { 8186db11e6feSjacobs dev_name = s_strdup(cb_arg.dev_names[i]); 8187db11e6feSjacobs break; 8188db11e6feSjacobs } 8189db11e6feSjacobs } 8190db11e6feSjacobs 8191db11e6feSjacobs /* fallback to the first name */ 8192db11e6feSjacobs if ((dev_name == NULL) && (cb_arg.count > 0)) 8193db11e6feSjacobs dev_name = s_strdup(cb_arg.dev_names[0]); 8194db11e6feSjacobs 8195db11e6feSjacobs free_dev_names(&cb_arg); 8196db11e6feSjacobs 8197db11e6feSjacobs return (dev_name); 8198db11e6feSjacobs } 8199db11e6feSjacobs 82007c478bd9Sstevel@tonic-gate /* 82017c478bd9Sstevel@tonic-gate * Build an nvlist containing all attributes for devfs events. 82027c478bd9Sstevel@tonic-gate * Returns nvlist pointer on success, NULL on failure. 82037c478bd9Sstevel@tonic-gate */ 82047c478bd9Sstevel@tonic-gate static nvlist_t * 82057c478bd9Sstevel@tonic-gate build_event_attributes(char *class, char *subclass, char *node_path, 820630294554Sphitran di_node_t node, char *driver_name, int instance, char *minor) 82077c478bd9Sstevel@tonic-gate { 82087c478bd9Sstevel@tonic-gate nvlist_t *nvl; 82097c478bd9Sstevel@tonic-gate int err = 0; 82107c478bd9Sstevel@tonic-gate di_prop_t prop; 82117c478bd9Sstevel@tonic-gate int count; 82127c478bd9Sstevel@tonic-gate char *prop_name; 82137c478bd9Sstevel@tonic-gate int x; 82147c478bd9Sstevel@tonic-gate char *dev_name = NULL; 82157c478bd9Sstevel@tonic-gate int dev_name_lookup_err = 0; 82167c478bd9Sstevel@tonic-gate 82177c478bd9Sstevel@tonic-gate if ((err = nvlist_alloc(&nvl, NV_UNIQUE_NAME_TYPE, 0)) != 0) { 82187c478bd9Sstevel@tonic-gate nvl = NULL; 82197c478bd9Sstevel@tonic-gate goto out; 82207c478bd9Sstevel@tonic-gate } 82217c478bd9Sstevel@tonic-gate 82227c478bd9Sstevel@tonic-gate if ((err = nvlist_add_int32(nvl, EV_VERSION, EV_V1)) != 0) 82237c478bd9Sstevel@tonic-gate goto out; 82247c478bd9Sstevel@tonic-gate 82257c478bd9Sstevel@tonic-gate if ((err = nvlist_add_string(nvl, DEV_PHYS_PATH, node_path)) != 0) 82267c478bd9Sstevel@tonic-gate goto out; 82277c478bd9Sstevel@tonic-gate 82287c478bd9Sstevel@tonic-gate if (strcmp(class, EC_DEV_ADD) != 0 && 82297c478bd9Sstevel@tonic-gate strcmp(class, EC_DEV_REMOVE) != 0) 82307c478bd9Sstevel@tonic-gate return (nvl); 82317c478bd9Sstevel@tonic-gate 82327c478bd9Sstevel@tonic-gate if (driver_name == NULL || instance == -1) 82337c478bd9Sstevel@tonic-gate goto out; 82347c478bd9Sstevel@tonic-gate 82357c478bd9Sstevel@tonic-gate if (strcmp(subclass, ESC_DISK) == 0) { 8236406fc510SToomas Soome /* 8237406fc510SToomas Soome * While we're removing labeled lofi device, we will receive 8238406fc510SToomas Soome * event for every registered minor device and lastly, 8239406fc510SToomas Soome * an event with minor set to NULL, as in following example: 8240406fc510SToomas Soome * class: EC_dev_remove subclass: disk 8241406fc510SToomas Soome * node_path: /pseudo/lofi@1 driver: lofi minor: u,raw 8242406fc510SToomas Soome * class: EC_dev_remove subclass: disk 8243406fc510SToomas Soome * node_path: /pseudo/lofi@1 driver: lofi minor: NULL 8244406fc510SToomas Soome * 8245406fc510SToomas Soome * When we receive this last event with minor set to NULL, 8246406fc510SToomas Soome * all lofi minor devices are already removed and the call to 8247406fc510SToomas Soome * lookup_disk_dev_name() would result in error. 8248406fc510SToomas Soome * To prevent name lookup error messages for this case, we 8249406fc510SToomas Soome * need to filter out that last event. 8250406fc510SToomas Soome */ 8251406fc510SToomas Soome if (strcmp(class, EC_DEV_REMOVE) == 0 && 8252406fc510SToomas Soome strcmp(driver_name, "lofi") == 0 && minor == NULL) { 8253406fc510SToomas Soome nvlist_free(nvl); 8254406fc510SToomas Soome return (NULL); 8255406fc510SToomas Soome } 82567c478bd9Sstevel@tonic-gate if ((dev_name = lookup_disk_dev_name(node_path)) == NULL) { 82577c478bd9Sstevel@tonic-gate dev_name_lookup_err = 1; 82587c478bd9Sstevel@tonic-gate goto out; 82597c478bd9Sstevel@tonic-gate } 82607c478bd9Sstevel@tonic-gate } else if (strcmp(subclass, ESC_NETWORK) == 0) { 82617c478bd9Sstevel@tonic-gate if ((dev_name = lookup_network_dev_name(node_path, driver_name)) 82627c478bd9Sstevel@tonic-gate == NULL) { 82637c478bd9Sstevel@tonic-gate dev_name_lookup_err = 1; 82647c478bd9Sstevel@tonic-gate goto out; 82657c478bd9Sstevel@tonic-gate } 8266db11e6feSjacobs } else if (strcmp(subclass, ESC_PRINTER) == 0) { 8267db11e6feSjacobs if ((dev_name = lookup_printer_dev_name(node_path)) == NULL) { 8268db11e6feSjacobs dev_name_lookup_err = 1; 8269db11e6feSjacobs goto out; 8270db11e6feSjacobs } 827130294554Sphitran } else if (strcmp(subclass, ESC_LOFI) == 0) { 827230294554Sphitran /* 827330294554Sphitran * The raw minor node is created or removed after the block 827430294554Sphitran * node. Lofi devfs events are dependent on this behavior. 827530294554Sphitran * Generate the sysevent only for the raw minor node. 8276406fc510SToomas Soome * 8277406fc510SToomas Soome * If the lofi mapping is created, we will receive the following 8278406fc510SToomas Soome * event: class: EC_dev_add subclass: lofi minor: NULL 8279406fc510SToomas Soome * 8280406fc510SToomas Soome * As in case of EC_dev_add, the minor is NULL pointer, 8281406fc510SToomas Soome * to get device links created, we will need to provide the 8282406fc510SToomas Soome * type of minor node for lookup_lofi_dev_name() 8283406fc510SToomas Soome * 8284406fc510SToomas Soome * If the lofi device is unmapped, we will receive following 8285406fc510SToomas Soome * events: 8286406fc510SToomas Soome * class: EC_dev_remove subclass: lofi minor: disk 8287406fc510SToomas Soome * class: EC_dev_remove subclass: lofi minor: disk,raw 8288406fc510SToomas Soome * class: EC_dev_remove subclass: lofi minor: NULL 828930294554Sphitran */ 8290406fc510SToomas Soome 8291406fc510SToomas Soome if (strcmp(class, EC_DEV_ADD) == 0 && minor == NULL) 8292406fc510SToomas Soome minor = "disk,raw"; 8293406fc510SToomas Soome 8294406fc510SToomas Soome if (minor == NULL || strstr(minor, "raw") == NULL) { 8295406fc510SToomas Soome nvlist_free(nvl); 829630294554Sphitran return (NULL); 829730294554Sphitran } 829830294554Sphitran if ((dev_name = lookup_lofi_dev_name(node_path, minor)) == 829930294554Sphitran NULL) { 830030294554Sphitran dev_name_lookup_err = 1; 830130294554Sphitran goto out; 830230294554Sphitran } 83037c478bd9Sstevel@tonic-gate } 83047c478bd9Sstevel@tonic-gate 83057c478bd9Sstevel@tonic-gate if (dev_name) { 83067c478bd9Sstevel@tonic-gate if ((err = nvlist_add_string(nvl, DEV_NAME, dev_name)) != 0) 83077c478bd9Sstevel@tonic-gate goto out; 83087c478bd9Sstevel@tonic-gate free(dev_name); 83097c478bd9Sstevel@tonic-gate dev_name = NULL; 83107c478bd9Sstevel@tonic-gate } 83117c478bd9Sstevel@tonic-gate 83127c478bd9Sstevel@tonic-gate if ((err = nvlist_add_string(nvl, DEV_DRIVER_NAME, driver_name)) != 0) 83137c478bd9Sstevel@tonic-gate goto out; 83147c478bd9Sstevel@tonic-gate 83157c478bd9Sstevel@tonic-gate if ((err = nvlist_add_int32(nvl, DEV_INSTANCE, instance)) != 0) 83167c478bd9Sstevel@tonic-gate goto out; 83177c478bd9Sstevel@tonic-gate 83187c478bd9Sstevel@tonic-gate if (strcmp(class, EC_DEV_ADD) == 0) { 83197c478bd9Sstevel@tonic-gate /* add properties */ 83207c478bd9Sstevel@tonic-gate count = 0; 83217c478bd9Sstevel@tonic-gate for (prop = di_prop_next(node, DI_PROP_NIL); 83227c478bd9Sstevel@tonic-gate prop != DI_PROP_NIL && count < MAX_PROP_COUNT; 83237c478bd9Sstevel@tonic-gate prop = di_prop_next(node, prop)) { 83247c478bd9Sstevel@tonic-gate 83257c478bd9Sstevel@tonic-gate if (di_prop_devt(prop) != DDI_DEV_T_NONE) 83267c478bd9Sstevel@tonic-gate continue; 83277c478bd9Sstevel@tonic-gate 83287c478bd9Sstevel@tonic-gate if ((x = add_property(nvl, prop)) == 0) 83297c478bd9Sstevel@tonic-gate count++; 83307c478bd9Sstevel@tonic-gate else if (x == -1) { 83317c478bd9Sstevel@tonic-gate if ((prop_name = di_prop_name(prop)) == NULL) 83327c478bd9Sstevel@tonic-gate prop_name = ""; 83337c478bd9Sstevel@tonic-gate err_print(PROP_ADD_FAILED, prop_name); 83347c478bd9Sstevel@tonic-gate goto out; 83357c478bd9Sstevel@tonic-gate } 83367c478bd9Sstevel@tonic-gate } 83377c478bd9Sstevel@tonic-gate } 83387c478bd9Sstevel@tonic-gate 83397c478bd9Sstevel@tonic-gate return (nvl); 83407c478bd9Sstevel@tonic-gate 83417c478bd9Sstevel@tonic-gate out: 8342aab83bb8SJosef 'Jeff' Sipek nvlist_free(nvl); 83437c478bd9Sstevel@tonic-gate 83447c478bd9Sstevel@tonic-gate if (dev_name) 83457c478bd9Sstevel@tonic-gate free(dev_name); 83467c478bd9Sstevel@tonic-gate 834793239addSjohnlev if (dev_name_lookup_err) { 834893239addSjohnlev /* 834993239addSjohnlev * If a lofi mount fails, the /devices node may well have 835093239addSjohnlev * disappeared by the time we run, so let's not complain. 835193239addSjohnlev */ 835293239addSjohnlev if (strcmp(subclass, ESC_LOFI) != 0) 835393239addSjohnlev err_print(DEV_NAME_LOOKUP_FAILED, node_path); 835493239addSjohnlev } else { 83557c478bd9Sstevel@tonic-gate err_print(BUILD_EVENT_ATTR_FAILED, (err) ? strerror(err) : ""); 835693239addSjohnlev } 83577c478bd9Sstevel@tonic-gate return (NULL); 83587c478bd9Sstevel@tonic-gate } 83597c478bd9Sstevel@tonic-gate 83607c478bd9Sstevel@tonic-gate static void 83617c478bd9Sstevel@tonic-gate log_event(char *class, char *subclass, nvlist_t *nvl) 83627c478bd9Sstevel@tonic-gate { 83637c478bd9Sstevel@tonic-gate sysevent_id_t eid; 83647c478bd9Sstevel@tonic-gate 83657c478bd9Sstevel@tonic-gate if (sysevent_post_event(class, subclass, "SUNW", DEVFSADMD, 83667c478bd9Sstevel@tonic-gate nvl, &eid) != 0) { 83677c478bd9Sstevel@tonic-gate err_print(LOG_EVENT_FAILED, strerror(errno)); 83687c478bd9Sstevel@tonic-gate } 83697c478bd9Sstevel@tonic-gate } 83707c478bd9Sstevel@tonic-gate 8371f05faa4eSjacobs /* 8372f05faa4eSjacobs * When devfsadmd needs to generate sysevents, they are queued for later 8373f05faa4eSjacobs * delivery this allows them to be delivered after the devlinks db cache has 8374f05faa4eSjacobs * been flushed guaranteeing that applications consuming these events have 8375f05faa4eSjacobs * access to an accurate devlinks db. The queue is a FIFO, sysevents to be 8376f05faa4eSjacobs * inserted in the front of the queue and consumed off the back. 8377f05faa4eSjacobs */ 8378f05faa4eSjacobs static void 8379f05faa4eSjacobs enqueue_sysevent(char *class, char *subclass, nvlist_t *nvl) 8380f05faa4eSjacobs { 8381f05faa4eSjacobs syseventq_t *tmp; 8382f05faa4eSjacobs 8383f05faa4eSjacobs if ((tmp = s_zalloc(sizeof (*tmp))) == NULL) 8384f05faa4eSjacobs return; 8385f05faa4eSjacobs 8386f05faa4eSjacobs tmp->class = s_strdup(class); 8387f05faa4eSjacobs tmp->subclass = s_strdup(subclass); 8388f05faa4eSjacobs tmp->nvl = nvl; 8389f05faa4eSjacobs 8390f05faa4eSjacobs (void) mutex_lock(&syseventq_mutex); 8391f05faa4eSjacobs if (syseventq_front != NULL) 8392f05faa4eSjacobs syseventq_front->next = tmp; 8393f05faa4eSjacobs else 8394f05faa4eSjacobs syseventq_back = tmp; 8395f05faa4eSjacobs syseventq_front = tmp; 8396f05faa4eSjacobs (void) mutex_unlock(&syseventq_mutex); 8397f05faa4eSjacobs } 8398f05faa4eSjacobs 8399f05faa4eSjacobs static void 8400f05faa4eSjacobs process_syseventq() 8401f05faa4eSjacobs { 8402f05faa4eSjacobs (void) mutex_lock(&syseventq_mutex); 8403f05faa4eSjacobs while (syseventq_back != NULL) { 8404f05faa4eSjacobs syseventq_t *tmp = syseventq_back; 8405f05faa4eSjacobs 8406f05faa4eSjacobs vprint(CHATTY_MID, "sending queued event: %s, %s\n", 84070a653502Swroche tmp->class, tmp->subclass); 8408f05faa4eSjacobs 8409f05faa4eSjacobs log_event(tmp->class, tmp->subclass, tmp->nvl); 8410f05faa4eSjacobs 8411f05faa4eSjacobs if (tmp->class != NULL) 8412f05faa4eSjacobs free(tmp->class); 8413f05faa4eSjacobs if (tmp->subclass != NULL) 8414f05faa4eSjacobs free(tmp->subclass); 8415aab83bb8SJosef 'Jeff' Sipek nvlist_free(tmp->nvl); 8416f05faa4eSjacobs syseventq_back = syseventq_back->next; 8417f05faa4eSjacobs if (syseventq_back == NULL) 8418f05faa4eSjacobs syseventq_front = NULL; 8419f05faa4eSjacobs free(tmp); 8420f05faa4eSjacobs } 8421f05faa4eSjacobs (void) mutex_unlock(&syseventq_mutex); 8422f05faa4eSjacobs } 8423f05faa4eSjacobs 84247c478bd9Sstevel@tonic-gate static void 8425f05faa4eSjacobs build_and_enq_event(char *class, char *subclass, char *node_path, 8426406fc510SToomas Soome di_node_t node, char *minor) 84277c478bd9Sstevel@tonic-gate { 84287c478bd9Sstevel@tonic-gate nvlist_t *nvl; 84297c478bd9Sstevel@tonic-gate 8430f05faa4eSjacobs vprint(CHATTY_MID, "build_and_enq_event(%s, %s, %s, 0x%8.8x)\n", 84310a653502Swroche class, subclass, node_path, (int)node); 8432f05faa4eSjacobs 84337c478bd9Sstevel@tonic-gate if (node != DI_NODE_NIL) 84347c478bd9Sstevel@tonic-gate nvl = build_event_attributes(class, subclass, node_path, node, 843530294554Sphitran di_driver_name(node), di_instance(node), minor); 84367c478bd9Sstevel@tonic-gate else 84377c478bd9Sstevel@tonic-gate nvl = build_event_attributes(class, subclass, node_path, node, 843830294554Sphitran NULL, -1, minor); 84397c478bd9Sstevel@tonic-gate 84407c478bd9Sstevel@tonic-gate if (nvl) { 8441f05faa4eSjacobs enqueue_sysevent(class, subclass, nvl); 84427c478bd9Sstevel@tonic-gate } 84437c478bd9Sstevel@tonic-gate } 8444facf4a8dSllai 84451ca93273Seota /* 84461ca93273Seota * is_blank() returns 1 (true) if a line specified is composed of 84471ca93273Seota * whitespace characters only. otherwise, it returns 0 (false). 84481ca93273Seota * 84491ca93273Seota * Note. the argument (line) must be null-terminated. 84501ca93273Seota */ 84511ca93273Seota static int 84521ca93273Seota is_blank(char *line) 84531ca93273Seota { 84541ca93273Seota for (/* nothing */; *line != '\0'; line++) 84551ca93273Seota if (!isspace(*line)) 84561ca93273Seota return (0); 84571ca93273Seota return (1); 84581ca93273Seota } 84591ca93273Seota 8460aa646b9dSvikram /* 8461aa646b9dSvikram * Functions to deal with the no-further-processing hash 8462aa646b9dSvikram */ 8463aa646b9dSvikram 8464aa646b9dSvikram static void 8465aa646b9dSvikram nfphash_create(void) 8466aa646b9dSvikram { 8467aa646b9dSvikram assert(nfp_hash == NULL); 8468aa646b9dSvikram nfp_hash = s_zalloc(NFP_HASH_SZ * sizeof (item_t *)); 8469aa646b9dSvikram } 8470aa646b9dSvikram 8471aa646b9dSvikram static int 8472aa646b9dSvikram nfphash_fcn(char *key) 8473aa646b9dSvikram { 8474aa646b9dSvikram int i; 8475aa646b9dSvikram uint64_t sum = 0; 8476aa646b9dSvikram 8477aa646b9dSvikram for (i = 0; key[i] != '\0'; i++) { 8478aa646b9dSvikram sum += (uchar_t)key[i]; 8479aa646b9dSvikram } 8480aa646b9dSvikram 8481aa646b9dSvikram return (sum % NFP_HASH_SZ); 8482aa646b9dSvikram } 8483aa646b9dSvikram 8484aa646b9dSvikram static item_t * 8485aa646b9dSvikram nfphash_lookup(char *key) 8486aa646b9dSvikram { 8487aa646b9dSvikram int index; 8488aa646b9dSvikram item_t *ip; 8489aa646b9dSvikram 8490aa646b9dSvikram index = nfphash_fcn(key); 8491aa646b9dSvikram 8492aa646b9dSvikram assert(index >= 0); 8493aa646b9dSvikram 8494aa646b9dSvikram for (ip = nfp_hash[index]; ip; ip = ip->i_next) { 8495aa646b9dSvikram if (strcmp(ip->i_key, key) == 0) 8496aa646b9dSvikram return (ip); 8497aa646b9dSvikram } 8498aa646b9dSvikram 8499aa646b9dSvikram return (NULL); 8500aa646b9dSvikram } 8501aa646b9dSvikram 8502aa646b9dSvikram static void 8503aa646b9dSvikram nfphash_insert(char *key) 8504aa646b9dSvikram { 8505aa646b9dSvikram item_t *ip; 8506aa646b9dSvikram int index; 8507aa646b9dSvikram 8508aa646b9dSvikram index = nfphash_fcn(key); 8509aa646b9dSvikram 8510aa646b9dSvikram assert(index >= 0); 8511aa646b9dSvikram 8512aa646b9dSvikram ip = s_zalloc(sizeof (item_t)); 8513aa646b9dSvikram ip->i_key = s_strdup(key); 8514aa646b9dSvikram 8515aa646b9dSvikram ip->i_next = nfp_hash[index]; 8516aa646b9dSvikram nfp_hash[index] = ip; 8517aa646b9dSvikram } 8518aa646b9dSvikram 8519aa646b9dSvikram static void 8520aa646b9dSvikram nfphash_destroy(void) 8521aa646b9dSvikram { 8522aa646b9dSvikram int i; 8523aa646b9dSvikram item_t *ip; 8524aa646b9dSvikram 8525aa646b9dSvikram for (i = 0; i < NFP_HASH_SZ; i++) { 8526aa646b9dSvikram /*LINTED*/ 8527aa646b9dSvikram while (ip = nfp_hash[i]) { 8528aa646b9dSvikram nfp_hash[i] = ip->i_next; 8529aa646b9dSvikram free(ip->i_key); 8530aa646b9dSvikram free(ip); 8531aa646b9dSvikram } 8532aa646b9dSvikram } 8533aa646b9dSvikram 8534aa646b9dSvikram free(nfp_hash); 8535aa646b9dSvikram nfp_hash = NULL; 8536aa646b9dSvikram } 8537aa646b9dSvikram 8538facf4a8dSllai static int 8539facf4a8dSllai devname_kcall(int subcmd, void *args) 8540facf4a8dSllai { 8541facf4a8dSllai int error = 0; 8542facf4a8dSllai 8543facf4a8dSllai switch (subcmd) { 8544facf4a8dSllai case MODDEVNAME_LOOKUPDOOR: 8545facf4a8dSllai error = modctl(MODDEVNAME, subcmd, (uintptr_t)args); 8546facf4a8dSllai if (error) { 8547facf4a8dSllai vprint(INFO_MID, "modctl(MODDEVNAME, " 8548facf4a8dSllai "MODDEVNAME_LOOKUPDOOR) failed - %s\n", 8549facf4a8dSllai strerror(errno)); 8550facf4a8dSllai } 8551facf4a8dSllai break; 8552facf4a8dSllai default: 8553facf4a8dSllai error = EINVAL; 8554facf4a8dSllai break; 8555facf4a8dSllai } 8556facf4a8dSllai return (error); 8557facf4a8dSllai } 8558facf4a8dSllai 8559facf4a8dSllai /* ARGSUSED */ 8560facf4a8dSllai static void 8561facf4a8dSllai devname_lookup_handler(void *cookie, char *argp, size_t arg_size, 8562facf4a8dSllai door_desc_t *dp, uint_t n_desc) 8563facf4a8dSllai { 8564facf4a8dSllai int32_t error = 0; 8565facf4a8dSllai door_cred_t dcred; 8566facf4a8dSllai struct dca_impl dci; 8567facf4a8dSllai uint8_t cmd; 8568facf4a8dSllai sdev_door_res_t res; 8569facf4a8dSllai sdev_door_arg_t *args; 8570facf4a8dSllai 8571facf4a8dSllai if (argp == NULL || arg_size == 0) { 8572facf4a8dSllai vprint(DEVNAME_MID, "devname_lookup_handler: argp wrong\n"); 8573facf4a8dSllai error = DEVFSADM_RUN_INVALID; 8574facf4a8dSllai goto done; 8575facf4a8dSllai } 8576facf4a8dSllai vprint(DEVNAME_MID, "devname_lookup_handler\n"); 8577facf4a8dSllai 8578facf4a8dSllai if (door_cred(&dcred) != 0 || dcred.dc_euid != 0) { 8579facf4a8dSllai vprint(DEVNAME_MID, "devname_lookup_handler: cred wrong\n"); 8580facf4a8dSllai error = DEVFSADM_RUN_EPERM; 8581facf4a8dSllai goto done; 8582facf4a8dSllai } 8583facf4a8dSllai 8584facf4a8dSllai args = (sdev_door_arg_t *)argp; 8585facf4a8dSllai cmd = args->devfsadm_cmd; 8586facf4a8dSllai 8587facf4a8dSllai vprint(DEVNAME_MID, "devname_lookup_handler: cmd %d\n", cmd); 8588facf4a8dSllai switch (cmd) { 8589facf4a8dSllai case DEVFSADMD_RUN_ALL: 8590facf4a8dSllai /* 8591facf4a8dSllai * run "devfsadm" 8592facf4a8dSllai */ 8593facf4a8dSllai dci.dci_root = "/"; 8594facf4a8dSllai dci.dci_minor = NULL; 8595facf4a8dSllai dci.dci_driver = NULL; 8596facf4a8dSllai dci.dci_error = 0; 8597facf4a8dSllai dci.dci_flags = 0; 8598facf4a8dSllai dci.dci_arg = NULL; 8599facf4a8dSllai 8600facf4a8dSllai lock_dev(); 8601c9cc1492SJerry Gilliam update_drvconf((major_t)-1, 0); 8602facf4a8dSllai dci.dci_flags |= DCA_FLUSH_PATHINST; 8603facf4a8dSllai 8604facf4a8dSllai pre_and_post_cleanup(RM_PRE); 860566ea8494SVikram Hegde devi_tree_walk(&dci, DI_CACHE_SNAPSHOT_FLAGS, NULL); 8606facf4a8dSllai error = (int32_t)dci.dci_error; 8607facf4a8dSllai if (!error) { 8608facf4a8dSllai pre_and_post_cleanup(RM_POST); 8609facf4a8dSllai update_database = TRUE; 8610facf4a8dSllai unlock_dev(SYNC_STATE); 8611facf4a8dSllai update_database = FALSE; 8612facf4a8dSllai } else { 8613facf4a8dSllai if (DEVFSADM_DEBUG_ON) { 8614facf4a8dSllai vprint(INFO_MID, "devname_lookup_handler: " 8615facf4a8dSllai "DEVFSADMD_RUN_ALL failed\n"); 8616facf4a8dSllai } 8617facf4a8dSllai 8618facf4a8dSllai unlock_dev(SYNC_STATE); 8619facf4a8dSllai } 8620facf4a8dSllai break; 8621facf4a8dSllai default: 8622facf4a8dSllai /* log an error here? */ 8623facf4a8dSllai error = DEVFSADM_RUN_NOTSUP; 8624facf4a8dSllai break; 8625facf4a8dSllai } 8626facf4a8dSllai 8627facf4a8dSllai done: 8628facf4a8dSllai vprint(DEVNAME_MID, "devname_lookup_handler: error %d\n", error); 8629facf4a8dSllai res.devfsadm_error = error; 8630facf4a8dSllai (void) door_return((char *)&res, sizeof (struct sdev_door_res), 8631facf4a8dSllai NULL, 0); 8632facf4a8dSllai } 86338d483882Smlf 86348d483882Smlf 86358d483882Smlf di_devlink_handle_t 86368d483882Smlf devfsadm_devlink_cache(void) 86378d483882Smlf { 86388d483882Smlf return (devlink_cache); 86398d483882Smlf } 86408d483882Smlf 86418d483882Smlf int 86428d483882Smlf devfsadm_reserve_id_cache(devlink_re_t re_array[], enumerate_file_t *head) 86438d483882Smlf { 86448d483882Smlf enumerate_file_t *entry; 86458d483882Smlf int nelem; 86468d483882Smlf int i; 86478d483882Smlf int subex; 86488d483882Smlf char *re; 86498d483882Smlf size_t size; 86508d483882Smlf regmatch_t *pmch; 86518d483882Smlf 86528d483882Smlf /* 86538d483882Smlf * Check the <RE, subexp> array passed in and compile it. 86548d483882Smlf */ 86558d483882Smlf for (i = 0; re_array[i].d_re; i++) { 86568d483882Smlf if (re_array[i].d_subexp == 0) { 86578d483882Smlf err_print("bad subexp value in RE: %s\n", 86588d483882Smlf re_array[i].d_re); 86598d483882Smlf goto bad_re; 86608d483882Smlf } 86618d483882Smlf 86628d483882Smlf re = re_array[i].d_re; 86638d483882Smlf if (regcomp(&re_array[i].d_rcomp, re, REG_EXTENDED) != 0) { 86648d483882Smlf err_print("reg. exp. failed to compile: %s\n", re); 86658d483882Smlf goto bad_re; 86668d483882Smlf } 86678d483882Smlf subex = re_array[i].d_subexp; 86688d483882Smlf nelem = subex + 1; 86698d483882Smlf re_array[i].d_pmatch = s_malloc(sizeof (regmatch_t) * nelem); 86708d483882Smlf } 86718d483882Smlf 86728d483882Smlf entry = head ? head : enumerate_reserved; 86738d483882Smlf for (; entry; entry = entry->er_next) { 86748d483882Smlf if (entry->er_id) { 86758d483882Smlf vprint(RSBY_MID, "entry %s already has ID %s\n", 86768d483882Smlf entry->er_file, entry->er_id); 86778d483882Smlf continue; 86788d483882Smlf } 86798d483882Smlf for (i = 0; re_array[i].d_re; i++) { 86808d483882Smlf subex = re_array[i].d_subexp; 86818d483882Smlf pmch = re_array[i].d_pmatch; 86828d483882Smlf if (regexec(&re_array[i].d_rcomp, entry->er_file, 86838d483882Smlf subex + 1, pmch, 0) != 0) { 86848d483882Smlf /* No match */ 86858d483882Smlf continue; 86868d483882Smlf } 86878d483882Smlf size = pmch[subex].rm_eo - pmch[subex].rm_so; 86888d483882Smlf entry->er_id = s_malloc(size + 1); 86898d483882Smlf (void) strncpy(entry->er_id, 86908d483882Smlf &entry->er_file[pmch[subex].rm_so], size); 86918d483882Smlf entry->er_id[size] = '\0'; 86928d483882Smlf if (head) { 86938d483882Smlf vprint(RSBY_MID, "devlink(%s) matches RE(%s). " 86948d483882Smlf "ID is %s\n", entry->er_file, 86958d483882Smlf re_array[i].d_re, entry->er_id); 86968d483882Smlf } else { 86978d483882Smlf vprint(RSBY_MID, "rsrv entry(%s) matches " 86988d483882Smlf "RE(%s) ID is %s\n", entry->er_file, 86998d483882Smlf re_array[i].d_re, entry->er_id); 87008d483882Smlf } 87018d483882Smlf break; 87028d483882Smlf } 87038d483882Smlf } 87048d483882Smlf 87058d483882Smlf for (i = 0; re_array[i].d_re; i++) { 87068d483882Smlf regfree(&re_array[i].d_rcomp); 87078d483882Smlf assert(re_array[i].d_pmatch); 87088d483882Smlf free(re_array[i].d_pmatch); 87098d483882Smlf } 87108d483882Smlf 87118d483882Smlf entry = head ? head : enumerate_reserved; 87128d483882Smlf for (; entry; entry = entry->er_next) { 87138d483882Smlf if (entry->er_id == NULL) 87148d483882Smlf continue; 87158d483882Smlf if (head) { 87168d483882Smlf vprint(RSBY_MID, "devlink: %s\n", entry->er_file); 87178d483882Smlf vprint(RSBY_MID, "ID: %s\n", entry->er_id); 87188d483882Smlf } else { 87198d483882Smlf vprint(RSBY_MID, "reserve file entry: %s\n", 87208d483882Smlf entry->er_file); 87218d483882Smlf vprint(RSBY_MID, "reserve file id: %s\n", 87228d483882Smlf entry->er_id); 87238d483882Smlf } 87248d483882Smlf } 87258d483882Smlf 87268d483882Smlf return (DEVFSADM_SUCCESS); 87278d483882Smlf 87288d483882Smlf bad_re: 87298d483882Smlf for (i = i-1; i >= 0; i--) { 87308d483882Smlf regfree(&re_array[i].d_rcomp); 87318d483882Smlf assert(re_array[i].d_pmatch); 87328d483882Smlf free(re_array[i].d_pmatch); 87338d483882Smlf } 87348d483882Smlf return (DEVFSADM_FAILURE); 87358d483882Smlf } 8736e37c6c37Scth 8737e37c6c37Scth /* 8738e37c6c37Scth * Return 1 if we have reserved links. 8739e37c6c37Scth */ 8740e37c6c37Scth int 8741e37c6c37Scth devfsadm_have_reserved() 8742e37c6c37Scth { 8743e37c6c37Scth return (enumerate_reserved ? 1 : 0); 8744e37c6c37Scth } 87458d483882Smlf 87468d483882Smlf /* 87478d483882Smlf * This functions errs on the side of caution. If there is any error 87488d483882Smlf * we assume that the devlink is *not* reserved 87498d483882Smlf */ 87508d483882Smlf int 87518d483882Smlf devfsadm_is_reserved(devlink_re_t re_array[], char *devlink) 87528d483882Smlf { 87538d483882Smlf int match; 87548d483882Smlf enumerate_file_t estruct = {NULL}; 87558d483882Smlf enumerate_file_t *entry; 87568d483882Smlf 87578d483882Smlf match = 0; 87588d483882Smlf estruct.er_file = devlink; 87598d483882Smlf estruct.er_id = NULL; 87608d483882Smlf estruct.er_next = NULL; 87618d483882Smlf 87628d483882Smlf if (devfsadm_reserve_id_cache(re_array, &estruct) != DEVFSADM_SUCCESS) { 87638d483882Smlf err_print("devfsadm_is_reserved: devlink (%s) does not " 87648d483882Smlf "match RE\n", devlink); 87658d483882Smlf return (0); 87668d483882Smlf } 87678d483882Smlf if (estruct.er_id == NULL) { 87688d483882Smlf err_print("devfsadm_is_reserved: ID derived from devlink %s " 87698d483882Smlf "is NULL\n", devlink); 87708d483882Smlf return (0); 87718d483882Smlf } 87728d483882Smlf 87738d483882Smlf entry = enumerate_reserved; 87748d483882Smlf for (; entry; entry = entry->er_next) { 87758d483882Smlf if (entry->er_id == NULL) 87768d483882Smlf continue; 87778d483882Smlf if (strcmp(entry->er_id, estruct.er_id) != 0) 87788d483882Smlf continue; 87798d483882Smlf match = 1; 87808d483882Smlf vprint(RSBY_MID, "reserve file entry (%s) and devlink (%s) " 87818d483882Smlf "match\n", entry->er_file, devlink); 87828d483882Smlf break; 87838d483882Smlf } 87848d483882Smlf 87858d483882Smlf free(estruct.er_id); 87868d483882Smlf return (match); 87878d483882Smlf } 8788