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 /* 23*94c894bbSVikram Hegde * Copyright (c) 1998, 2010, Oracle and/or its affiliates. All rights reserved. 247c478bd9Sstevel@tonic-gate */ 257c478bd9Sstevel@tonic-gate 267c478bd9Sstevel@tonic-gate /* 277c478bd9Sstevel@tonic-gate * Devfsadm replaces drvconfig, audlinks, disks, tapes, ports, devlinks 287c478bd9Sstevel@tonic-gate * as a general purpose device administrative utility. It creates 297c478bd9Sstevel@tonic-gate * devices special files in /devices and logical links in /dev, and 307c478bd9Sstevel@tonic-gate * coordinates updates to /etc/path_to_instance with the kernel. It 317c478bd9Sstevel@tonic-gate * operates in both command line mode to handle user or script invoked 327c478bd9Sstevel@tonic-gate * reconfiguration updates, and operates in daemon mode to handle dynamic 337c478bd9Sstevel@tonic-gate * reconfiguration for hotplugging support. 347c478bd9Sstevel@tonic-gate */ 357c478bd9Sstevel@tonic-gate 3645916cd2Sjpk #include <string.h> 37f875b4ebSrica #include <deflt.h> 3845916cd2Sjpk #include <tsol/label.h> 3945916cd2Sjpk #include <bsm/devices.h> 4045916cd2Sjpk #include <bsm/devalloc.h> 417c478bd9Sstevel@tonic-gate #include <utime.h> 426638bf60Saj #include <sys/param.h> 436638bf60Saj #include <bsm/libbsm.h> 4417e9b2b7SDhanaraj M #include <zone.h> 4545916cd2Sjpk #include "devfsadm_impl.h" 467c478bd9Sstevel@tonic-gate 4745916cd2Sjpk /* externs from devalloc.c */ 4845916cd2Sjpk extern void _reset_devalloc(int); 4945916cd2Sjpk extern void _update_devalloc_db(devlist_t *, int, int, char *, char *); 5045916cd2Sjpk extern int _da_check_for_usb(char *, char *); 517c478bd9Sstevel@tonic-gate 527c478bd9Sstevel@tonic-gate /* create or remove nodes or links. unset with -n */ 537c478bd9Sstevel@tonic-gate static int file_mods = TRUE; 547c478bd9Sstevel@tonic-gate 557c478bd9Sstevel@tonic-gate /* cleanup mode. Set with -C */ 567c478bd9Sstevel@tonic-gate static int cleanup = FALSE; 577c478bd9Sstevel@tonic-gate 587c478bd9Sstevel@tonic-gate /* devlinks -d compatibility */ 597c478bd9Sstevel@tonic-gate static int devlinks_debug = FALSE; 607c478bd9Sstevel@tonic-gate 6145916cd2Sjpk /* flag to check if system is labeled */ 6245916cd2Sjpk int system_labeled = FALSE; 6345916cd2Sjpk 6445916cd2Sjpk /* flag to enable/disable device allocation with -e/-d */ 6545916cd2Sjpk static int devalloc_flag = 0; 6645916cd2Sjpk 676638bf60Saj /* flag that indicates if device allocation is on or not */ 686638bf60Saj static int devalloc_is_on = 0; 696638bf60Saj 7045916cd2Sjpk /* flag to update device allocation database for this device type */ 7145916cd2Sjpk static int update_devdb = 0; 7245916cd2Sjpk 7345916cd2Sjpk /* 7445916cd2Sjpk * devices to be deallocated with -d : 7545916cd2Sjpk * audio, floppy, cd, floppy, tape, rmdisk. 7645916cd2Sjpk */ 7745916cd2Sjpk static char *devalloc_list[10] = {DDI_NT_AUDIO, DDI_NT_CD, DDI_NT_CD_CHAN, 7845916cd2Sjpk DDI_NT_FD, DDI_NT_TAPE, DDI_NT_BLOCK_CHAN, 7945916cd2Sjpk DDI_NT_UGEN, DDI_NT_USB_ATTACHMENT_POINT, 8045916cd2Sjpk DDI_NT_SCSI_NEXUS, NULL}; 817c478bd9Sstevel@tonic-gate 8245916cd2Sjpk /* list of allocatable devices */ 8345916cd2Sjpk static devlist_t devlist; 847c478bd9Sstevel@tonic-gate 857c478bd9Sstevel@tonic-gate /* load a single driver only. set with -i */ 867c478bd9Sstevel@tonic-gate static int single_drv = FALSE; 877c478bd9Sstevel@tonic-gate static char *driver = NULL; 887c478bd9Sstevel@tonic-gate 897c478bd9Sstevel@tonic-gate /* attempt to load drivers or defer attach nodes */ 907c478bd9Sstevel@tonic-gate static int load_attach_drv = TRUE; 917c478bd9Sstevel@tonic-gate 92c9cc1492SJerry Gilliam /* reload all driver.conf files */ 93c9cc1492SJerry Gilliam static int update_all_drivers = FALSE; 94c9cc1492SJerry Gilliam 957c478bd9Sstevel@tonic-gate /* set if invoked via /usr/lib/devfsadm/devfsadmd */ 967c478bd9Sstevel@tonic-gate static int daemon_mode = FALSE; 977c478bd9Sstevel@tonic-gate 987e3e5701SJan Parcel /* set if event_handler triggered */ 997e3e5701SJan Parcel int event_driven = FALSE; 1007e3e5701SJan Parcel 1017c478bd9Sstevel@tonic-gate /* output directed to syslog during daemon mode if set */ 1027c478bd9Sstevel@tonic-gate static int logflag = FALSE; 1037c478bd9Sstevel@tonic-gate 1047c478bd9Sstevel@tonic-gate /* build links in /dev. -x to turn off */ 1057c478bd9Sstevel@tonic-gate static int build_dev = TRUE; 1067c478bd9Sstevel@tonic-gate 1077c478bd9Sstevel@tonic-gate /* build nodes in /devices. -y to turn off */ 1087c478bd9Sstevel@tonic-gate static int build_devices = TRUE; 1097c478bd9Sstevel@tonic-gate 1107c478bd9Sstevel@tonic-gate /* -z to turn off */ 1117c478bd9Sstevel@tonic-gate static int flush_path_to_inst_enable = TRUE; 1127c478bd9Sstevel@tonic-gate 1137c478bd9Sstevel@tonic-gate /* variables used for path_to_inst flushing */ 1147c478bd9Sstevel@tonic-gate static int inst_count = 0; 1157c478bd9Sstevel@tonic-gate static mutex_t count_lock; 1167c478bd9Sstevel@tonic-gate static cond_t cv; 1177c478bd9Sstevel@tonic-gate 118ff2aee48Scth /* variables for minor_fini thread */ 1197c478bd9Sstevel@tonic-gate static mutex_t minor_fini_mutex; 120ff2aee48Scth static int minor_fini_canceled = TRUE; 121ff2aee48Scth static int minor_fini_delayed = FALSE; 122ff2aee48Scth static cond_t minor_fini_cv; 123ff2aee48Scth static int minor_fini_timeout = MINOR_FINI_TIMEOUT_DEFAULT; 1247c478bd9Sstevel@tonic-gate 1257c478bd9Sstevel@tonic-gate /* single-threads /dev modification */ 1267c478bd9Sstevel@tonic-gate static sema_t dev_sema; 1277c478bd9Sstevel@tonic-gate 1287c478bd9Sstevel@tonic-gate /* the program we were invoked as; ie argv[0] */ 1297c478bd9Sstevel@tonic-gate static char *prog; 1307c478bd9Sstevel@tonic-gate 1317c478bd9Sstevel@tonic-gate /* pointers to create/remove link lists */ 1327c478bd9Sstevel@tonic-gate static create_list_t *create_head = NULL; 1337c478bd9Sstevel@tonic-gate static remove_list_t *remove_head = NULL; 1347c478bd9Sstevel@tonic-gate 1357c478bd9Sstevel@tonic-gate /* supports the class -c option */ 1367c478bd9Sstevel@tonic-gate static char **classes = NULL; 1377c478bd9Sstevel@tonic-gate static int num_classes = 0; 1387c478bd9Sstevel@tonic-gate 1397c478bd9Sstevel@tonic-gate /* used with verbose option -v or -V */ 1407c478bd9Sstevel@tonic-gate static int num_verbose = 0; 1417c478bd9Sstevel@tonic-gate static char **verbose = NULL; 1427c478bd9Sstevel@tonic-gate 1437c478bd9Sstevel@tonic-gate static struct mperm *minor_perms = NULL; 1447c478bd9Sstevel@tonic-gate static driver_alias_t *driver_aliases = NULL; 1457c478bd9Sstevel@tonic-gate 1467c478bd9Sstevel@tonic-gate /* set if -r alternate root given */ 1477c478bd9Sstevel@tonic-gate static char *root_dir = ""; 1487c478bd9Sstevel@tonic-gate 1497c478bd9Sstevel@tonic-gate /* /devices or <rootdir>/devices */ 1507c478bd9Sstevel@tonic-gate static char *devices_dir = DEVICES; 1517c478bd9Sstevel@tonic-gate 1527c478bd9Sstevel@tonic-gate /* /dev or <rootdir>/dev */ 1537c478bd9Sstevel@tonic-gate static char *dev_dir = DEV; 1547c478bd9Sstevel@tonic-gate 155facf4a8dSllai /* /etc/dev or <rootdir>/etc/dev */ 156facf4a8dSllai static char *etc_dev_dir = ETCDEV; 157facf4a8dSllai 158facf4a8dSllai /* 159facf4a8dSllai * writable root (for lock files and doors during install). 160facf4a8dSllai * This is also root dir for /dev attr dir during install. 161facf4a8dSllai */ 162facf4a8dSllai static char *attr_root = NULL; 1637c478bd9Sstevel@tonic-gate 1647c478bd9Sstevel@tonic-gate /* /etc/path_to_inst unless -p used */ 1657c478bd9Sstevel@tonic-gate static char *inst_file = INSTANCE_FILE; 1667c478bd9Sstevel@tonic-gate 1677c478bd9Sstevel@tonic-gate /* /usr/lib/devfsadm/linkmods unless -l used */ 1687c478bd9Sstevel@tonic-gate static char *module_dirs = MODULE_DIRS; 1697c478bd9Sstevel@tonic-gate 1707c478bd9Sstevel@tonic-gate /* default uid/gid used if /etc/minor_perm entry not found */ 1717c478bd9Sstevel@tonic-gate static uid_t root_uid; 1727c478bd9Sstevel@tonic-gate static gid_t sys_gid; 1737c478bd9Sstevel@tonic-gate 1747c478bd9Sstevel@tonic-gate /* /etc/devlink.tab unless devlinks -t used */ 1757c478bd9Sstevel@tonic-gate static char *devlinktab_file = NULL; 1767c478bd9Sstevel@tonic-gate 1778d483882Smlf /* File and data structure to reserve enumerate IDs */ 1788d483882Smlf static char *enumerate_file = ENUMERATE_RESERVED; 1798d483882Smlf static enumerate_file_t *enumerate_reserved = NULL; 1808d483882Smlf 1817c478bd9Sstevel@tonic-gate /* set if /dev link is new. speeds up rm_stale_links */ 1827c478bd9Sstevel@tonic-gate static int linknew = TRUE; 1837c478bd9Sstevel@tonic-gate 1847c478bd9Sstevel@tonic-gate /* variables for devlink.tab compat processing */ 1857c478bd9Sstevel@tonic-gate static devlinktab_list_t *devlinktab_list = NULL; 1867c478bd9Sstevel@tonic-gate static unsigned int devlinktab_line = 0; 1877c478bd9Sstevel@tonic-gate 1887c478bd9Sstevel@tonic-gate /* cache head for devfsadm_enumerate*() functions */ 1897c478bd9Sstevel@tonic-gate static numeral_set_t *head_numeral_set = NULL; 1907c478bd9Sstevel@tonic-gate 1917c478bd9Sstevel@tonic-gate /* list list of devfsadm modules */ 1927c478bd9Sstevel@tonic-gate static module_t *module_head = NULL; 1937c478bd9Sstevel@tonic-gate 1947c478bd9Sstevel@tonic-gate /* name_to_major list used in utility function */ 1957c478bd9Sstevel@tonic-gate static n2m_t *n2m_list = NULL; 1967c478bd9Sstevel@tonic-gate 1977c478bd9Sstevel@tonic-gate /* cache of some links used for performance */ 1987c478bd9Sstevel@tonic-gate static linkhead_t *headlinkhead = NULL; 1997c478bd9Sstevel@tonic-gate 2007c478bd9Sstevel@tonic-gate /* locking variables to prevent multiples writes to /dev */ 2017c478bd9Sstevel@tonic-gate static int hold_dev_lock = FALSE; 2027c478bd9Sstevel@tonic-gate static int hold_daemon_lock = FALSE; 2037c478bd9Sstevel@tonic-gate static int dev_lock_fd; 2047c478bd9Sstevel@tonic-gate static int daemon_lock_fd; 2057c478bd9Sstevel@tonic-gate static char dev_lockfile[PATH_MAX + 1]; 2067c478bd9Sstevel@tonic-gate static char daemon_lockfile[PATH_MAX + 1]; 2077c478bd9Sstevel@tonic-gate 2087c478bd9Sstevel@tonic-gate /* last devinfo node/minor processed. used for performance */ 2097c478bd9Sstevel@tonic-gate static di_node_t lnode; 2107c478bd9Sstevel@tonic-gate static di_minor_t lminor; 2117c478bd9Sstevel@tonic-gate static char lphy_path[PATH_MAX + 1] = {""}; 2127c478bd9Sstevel@tonic-gate 2137c478bd9Sstevel@tonic-gate /* Globals used by the link database */ 2147c478bd9Sstevel@tonic-gate static di_devlink_handle_t devlink_cache; 2157c478bd9Sstevel@tonic-gate static int update_database = FALSE; 2167c478bd9Sstevel@tonic-gate 2177c478bd9Sstevel@tonic-gate /* Globals used to set logindev perms */ 2187c478bd9Sstevel@tonic-gate static struct login_dev *login_dev_cache = NULL; 2197c478bd9Sstevel@tonic-gate static int login_dev_enable = FALSE; 2207c478bd9Sstevel@tonic-gate 2217c478bd9Sstevel@tonic-gate /* Global to use devinfo snapshot cache */ 2227c478bd9Sstevel@tonic-gate static int use_snapshot_cache = FALSE; 2237c478bd9Sstevel@tonic-gate 224aa646b9dSvikram /* Global for no-further-processing hash */ 225aa646b9dSvikram static item_t **nfp_hash; 226aa646b9dSvikram static mutex_t nfp_mutex = DEFAULTMUTEX; 227aa646b9dSvikram 2287c478bd9Sstevel@tonic-gate /* 2297c478bd9Sstevel@tonic-gate * Packaged directories - not removed even when empty. 2307c478bd9Sstevel@tonic-gate * The dirs must be listed in canonical form 2317c478bd9Sstevel@tonic-gate * i.e. without leading "/dev/" 2327c478bd9Sstevel@tonic-gate */ 2337c478bd9Sstevel@tonic-gate static char *packaged_dirs[] = 2347c478bd9Sstevel@tonic-gate {"dsk", "rdsk", "term", NULL}; 2357c478bd9Sstevel@tonic-gate 236facf4a8dSllai /* Devname globals */ 237facf4a8dSllai static int lookup_door_fd = -1; 238facf4a8dSllai static char *lookup_door_path; 239facf4a8dSllai 2407c478bd9Sstevel@tonic-gate static void load_dev_acl(void); 241c9cc1492SJerry Gilliam static void update_drvconf(major_t, int); 242facf4a8dSllai static void check_reconfig_state(void); 243facf4a8dSllai static int s_stat(const char *, struct stat *); 2447c478bd9Sstevel@tonic-gate 2451ca93273Seota static int is_blank(char *); 2461ca93273Seota 247f05faa4eSjacobs /* sysevent queue related globals */ 248f05faa4eSjacobs static mutex_t syseventq_mutex = DEFAULTMUTEX; 249f05faa4eSjacobs static syseventq_t *syseventq_front; 250f05faa4eSjacobs static syseventq_t *syseventq_back; 251f05faa4eSjacobs static void process_syseventq(); 252f05faa4eSjacobs 253*94c894bbSVikram Hegde static di_node_t devi_root_node = DI_NODE_NIL; 254*94c894bbSVikram Hegde 2557c478bd9Sstevel@tonic-gate int 2567c478bd9Sstevel@tonic-gate main(int argc, char *argv[]) 2577c478bd9Sstevel@tonic-gate { 2587c478bd9Sstevel@tonic-gate struct passwd *pw; 2597c478bd9Sstevel@tonic-gate struct group *gp; 2607c478bd9Sstevel@tonic-gate pid_t pid; 2616638bf60Saj int cond = 0; 2627c478bd9Sstevel@tonic-gate 2637c478bd9Sstevel@tonic-gate (void) setlocale(LC_ALL, ""); 2647c478bd9Sstevel@tonic-gate (void) textdomain(TEXT_DOMAIN); 2657c478bd9Sstevel@tonic-gate 2667c478bd9Sstevel@tonic-gate if ((prog = strrchr(argv[0], '/')) == NULL) { 2677c478bd9Sstevel@tonic-gate prog = argv[0]; 2687c478bd9Sstevel@tonic-gate } else { 2697c478bd9Sstevel@tonic-gate prog++; 2707c478bd9Sstevel@tonic-gate } 2717c478bd9Sstevel@tonic-gate 2727c478bd9Sstevel@tonic-gate if (getuid() != 0) { 2737c478bd9Sstevel@tonic-gate err_print(MUST_BE_ROOT); 2747c478bd9Sstevel@tonic-gate devfsadm_exit(1); 275537714daSvikram /*NOTREACHED*/ 2767c478bd9Sstevel@tonic-gate } 2777c478bd9Sstevel@tonic-gate 27817e9b2b7SDhanaraj M if (getzoneid() != GLOBAL_ZONEID) { 27917e9b2b7SDhanaraj M err_print(MUST_BE_GLOBAL_ZONE); 28017e9b2b7SDhanaraj M devfsadm_exit(1); 28117e9b2b7SDhanaraj M } 28217e9b2b7SDhanaraj M 2837c478bd9Sstevel@tonic-gate /* 2847c478bd9Sstevel@tonic-gate * Close all files except stdin/stdout/stderr 2857c478bd9Sstevel@tonic-gate */ 2867c478bd9Sstevel@tonic-gate closefrom(3); 2877c478bd9Sstevel@tonic-gate 2887c478bd9Sstevel@tonic-gate if ((pw = getpwnam(DEFAULT_DEV_USER)) != NULL) { 2897c478bd9Sstevel@tonic-gate root_uid = pw->pw_uid; 2907c478bd9Sstevel@tonic-gate } else { 2917c478bd9Sstevel@tonic-gate err_print(CANT_FIND_USER, DEFAULT_DEV_USER); 2927c478bd9Sstevel@tonic-gate root_uid = (uid_t)0; /* assume 0 is root */ 2937c478bd9Sstevel@tonic-gate } 2947c478bd9Sstevel@tonic-gate 2957c478bd9Sstevel@tonic-gate /* the default group is sys */ 2967c478bd9Sstevel@tonic-gate 2977c478bd9Sstevel@tonic-gate if ((gp = getgrnam(DEFAULT_DEV_GROUP)) != NULL) { 2987c478bd9Sstevel@tonic-gate sys_gid = gp->gr_gid; 2997c478bd9Sstevel@tonic-gate } else { 3007c478bd9Sstevel@tonic-gate err_print(CANT_FIND_GROUP, DEFAULT_DEV_GROUP); 3017c478bd9Sstevel@tonic-gate sys_gid = (gid_t)3; /* assume 3 is sys */ 3027c478bd9Sstevel@tonic-gate } 3037c478bd9Sstevel@tonic-gate 3047c478bd9Sstevel@tonic-gate (void) umask(0); 3057c478bd9Sstevel@tonic-gate 30645916cd2Sjpk system_labeled = is_system_labeled(); 30745916cd2Sjpk if (system_labeled == FALSE) { 30845916cd2Sjpk /* 30945916cd2Sjpk * is_system_labeled() will return false in case we are 31045916cd2Sjpk * starting before the first reboot after Trusted Extensions 311f875b4ebSrica * is enabled. Check the setting in /etc/system to see if 312f875b4ebSrica * TX is enabled (even if not yet booted). 31345916cd2Sjpk */ 314f875b4ebSrica if (defopen("/etc/system") == 0) { 315f875b4ebSrica if (defread("set sys_labeling=1") != NULL) 316f875b4ebSrica system_labeled = TRUE; 317f875b4ebSrica 318f875b4ebSrica /* close defaults file */ 319f875b4ebSrica (void) defopen(NULL); 320facf4a8dSllai } 32145916cd2Sjpk } 3226638bf60Saj /* 3236638bf60Saj * Check if device allocation is enabled. 3246638bf60Saj */ 3256638bf60Saj if (system_labeled) { 3266638bf60Saj /* 3276638bf60Saj * In TX, the first line in /etc/security/device_allocate has 3286638bf60Saj * DEVICE_ALLOCATION=ON if the feature is enabled. 3296638bf60Saj */ 3306638bf60Saj devalloc_is_on = da_is_on(); 3316638bf60Saj } else if (auditon(A_GETCOND, (caddr_t)&cond, sizeof (cond)) == 0) { 3326638bf60Saj /* 333d0ca2f1bSJan Parcel * auditon returns -1 and sets errno to EINVAL if BSM 334d0ca2f1bSJan Parcel * is not enabled, so devalloc_is_on must be 0 if no BSM. 335d0ca2f1bSJan Parcel * 336d0ca2f1bSJan Parcel * Device allocation (and auditing) is enabled by default 337d0ca2f1bSJan Parcel * if BSM is enabled, but by default DEVICE_ALLOCATE= 338d0ca2f1bSJan Parcel * string is absent from device_allocate, so da_is_on 339d0ca2f1bSJan Parcel * will return -1. To preserve the historical default 340d0ca2f1bSJan Parcel * behavior but allow disabling device allocation where needed, 341d0ca2f1bSJan Parcel * set devalloc_is_on to true for non-0, false only for 0. 342d0ca2f1bSJan Parcel * 3436638bf60Saj */ 344d0ca2f1bSJan Parcel devalloc_is_on = (da_is_on() == 0) ? 0 : 1; 3456638bf60Saj } 34645916cd2Sjpk 347f875b4ebSrica #ifdef DEBUG 348f875b4ebSrica if (system_labeled == FALSE) { 349f875b4ebSrica struct stat tx_stat; 350f875b4ebSrica 351f875b4ebSrica /* test hook: see also mkdevalloc.c and allocate.c */ 352f875b4ebSrica system_labeled = is_system_labeled_debug(&tx_stat); 353f875b4ebSrica } 354f875b4ebSrica #endif 355f875b4ebSrica 3567c478bd9Sstevel@tonic-gate parse_args(argc, argv); 3577c478bd9Sstevel@tonic-gate 3587c478bd9Sstevel@tonic-gate (void) sema_init(&dev_sema, 1, USYNC_THREAD, NULL); 3597c478bd9Sstevel@tonic-gate 36045916cd2Sjpk /* Initialize device allocation list */ 36145916cd2Sjpk devlist.audio = devlist.cd = devlist.floppy = devlist.tape = 3620a653502Swroche devlist.rmdisk = NULL; 36345916cd2Sjpk 3647c478bd9Sstevel@tonic-gate if (daemon_mode == TRUE) { 3657c478bd9Sstevel@tonic-gate /* 3667c478bd9Sstevel@tonic-gate * Build /dev and /devices before daemonizing if 3677c478bd9Sstevel@tonic-gate * reconfig booting and daemon invoked with alternate 3687c478bd9Sstevel@tonic-gate * root. This is to support install. 3697c478bd9Sstevel@tonic-gate */ 3707c478bd9Sstevel@tonic-gate if (getenv(RECONFIG_BOOT) != NULL && root_dir[0] != '\0') { 3717c478bd9Sstevel@tonic-gate vprint(INFO_MID, CONFIGURING); 3727c478bd9Sstevel@tonic-gate load_dev_acl(); 373c9cc1492SJerry Gilliam update_drvconf((major_t)-1, 0); 3747c478bd9Sstevel@tonic-gate process_devinfo_tree(); 3757c478bd9Sstevel@tonic-gate (void) modctl(MODSETMINIROOT); 3767c478bd9Sstevel@tonic-gate } 3777c478bd9Sstevel@tonic-gate 3787c478bd9Sstevel@tonic-gate /* 3797c478bd9Sstevel@tonic-gate * fork before detaching from tty in order to print error 3807c478bd9Sstevel@tonic-gate * message if unable to acquire file lock. locks not preserved 3817c478bd9Sstevel@tonic-gate * across forks. Even under debug we want to fork so that 3827c478bd9Sstevel@tonic-gate * when executed at boot we don't hang. 3837c478bd9Sstevel@tonic-gate */ 3847c478bd9Sstevel@tonic-gate if (fork() != 0) { 3857c478bd9Sstevel@tonic-gate devfsadm_exit(0); 386537714daSvikram /*NOTREACHED*/ 3877c478bd9Sstevel@tonic-gate } 3887c478bd9Sstevel@tonic-gate 3897c478bd9Sstevel@tonic-gate /* set directory to / so it coredumps there */ 3907c478bd9Sstevel@tonic-gate if (chdir("/") == -1) { 3917c478bd9Sstevel@tonic-gate err_print(CHROOT_FAILED, strerror(errno)); 3927c478bd9Sstevel@tonic-gate } 3937c478bd9Sstevel@tonic-gate 3947c478bd9Sstevel@tonic-gate /* only one daemon can run at a time */ 3957c478bd9Sstevel@tonic-gate if ((pid = enter_daemon_lock()) == getpid()) { 3967c478bd9Sstevel@tonic-gate detachfromtty(); 3977c478bd9Sstevel@tonic-gate (void) cond_init(&cv, USYNC_THREAD, 0); 3987c478bd9Sstevel@tonic-gate (void) mutex_init(&count_lock, USYNC_THREAD, 0); 3997c478bd9Sstevel@tonic-gate if (thr_create(NULL, NULL, 400ff2aee48Scth (void *(*)(void *))instance_flush_thread, 401ff2aee48Scth NULL, THR_DETACHED, NULL) != 0) { 4027c478bd9Sstevel@tonic-gate err_print(CANT_CREATE_THREAD, "daemon", 4030a653502Swroche strerror(errno)); 4047c478bd9Sstevel@tonic-gate devfsadm_exit(1); 405537714daSvikram /*NOTREACHED*/ 4067c478bd9Sstevel@tonic-gate } 4077c478bd9Sstevel@tonic-gate 408ff2aee48Scth /* start the minor_fini_thread */ 409ff2aee48Scth (void) mutex_init(&minor_fini_mutex, USYNC_THREAD, 0); 410ff2aee48Scth (void) cond_init(&minor_fini_cv, USYNC_THREAD, 0); 411ff2aee48Scth if (thr_create(NULL, NULL, 412ff2aee48Scth (void *(*)(void *))minor_fini_thread, 413ff2aee48Scth NULL, THR_DETACHED, NULL)) { 414ff2aee48Scth err_print(CANT_CREATE_THREAD, "minor_fini", 415ff2aee48Scth strerror(errno)); 416ff2aee48Scth devfsadm_exit(1); 417537714daSvikram /*NOTREACHED*/ 418ff2aee48Scth } 419ff2aee48Scth 420ff2aee48Scth 4217c478bd9Sstevel@tonic-gate /* 4220dc974a9SCathy Zhou * logindevperms need only be set 4237c478bd9Sstevel@tonic-gate * in daemon mode and when root dir is "/". 4247c478bd9Sstevel@tonic-gate */ 4250dc974a9SCathy Zhou if (root_dir[0] == '\0') 4267c478bd9Sstevel@tonic-gate login_dev_enable = TRUE; 4277c478bd9Sstevel@tonic-gate daemon_update(); 428537714daSvikram devfsadm_exit(0); 429537714daSvikram /*NOTREACHED*/ 4307c478bd9Sstevel@tonic-gate } else { 4317c478bd9Sstevel@tonic-gate err_print(DAEMON_RUNNING, pid); 4327c478bd9Sstevel@tonic-gate devfsadm_exit(1); 433537714daSvikram /*NOTREACHED*/ 4347c478bd9Sstevel@tonic-gate } 4357c478bd9Sstevel@tonic-gate } else { 4367c478bd9Sstevel@tonic-gate /* not a daemon, so just build /dev and /devices */ 4378c206d17Spr 4388c206d17Spr /* 4398c206d17Spr * If turning off device allocation, load the 4408c206d17Spr * minor_perm file because process_devinfo_tree() will 4418c206d17Spr * need this in order to reset the permissions of the 4428c206d17Spr * device files. 4438c206d17Spr */ 4448c206d17Spr if (devalloc_flag == DA_OFF) { 4458c206d17Spr read_minor_perm_file(); 4468c206d17Spr } 4478c206d17Spr 4487c478bd9Sstevel@tonic-gate process_devinfo_tree(); 44945916cd2Sjpk if (devalloc_flag != 0) 45045916cd2Sjpk /* Enable/disable device allocation */ 45145916cd2Sjpk _reset_devalloc(devalloc_flag); 4527c478bd9Sstevel@tonic-gate } 4537c478bd9Sstevel@tonic-gate return (0); 4547c478bd9Sstevel@tonic-gate } 4557c478bd9Sstevel@tonic-gate 4567c478bd9Sstevel@tonic-gate static void 457c9cc1492SJerry Gilliam update_drvconf(major_t major, int flags) 4587c478bd9Sstevel@tonic-gate { 459c9cc1492SJerry Gilliam if (modctl(MODLOADDRVCONF, major, flags) != 0) 4607c478bd9Sstevel@tonic-gate err_print(gettext("update_drvconf failed for major %d\n"), 4617c478bd9Sstevel@tonic-gate major); 4627c478bd9Sstevel@tonic-gate } 4637c478bd9Sstevel@tonic-gate 4647c478bd9Sstevel@tonic-gate static void 4657c478bd9Sstevel@tonic-gate load_dev_acl() 4667c478bd9Sstevel@tonic-gate { 4677c478bd9Sstevel@tonic-gate if (load_devpolicy() != 0) 4687c478bd9Sstevel@tonic-gate err_print(gettext("device policy load failed\n")); 4697c478bd9Sstevel@tonic-gate load_minor_perm_file(); 4707c478bd9Sstevel@tonic-gate } 4717c478bd9Sstevel@tonic-gate 4727c478bd9Sstevel@tonic-gate /* 473facf4a8dSllai * As devfsadm is run early in boot to provide the kernel with 474facf4a8dSllai * minor_perm info, we might as well check for reconfig at the 475facf4a8dSllai * same time to avoid running devfsadm twice. This gets invoked 476facf4a8dSllai * earlier than the env variable RECONFIG_BOOT is set up. 4777c478bd9Sstevel@tonic-gate */ 478facf4a8dSllai static void 479facf4a8dSllai check_reconfig_state() 4807c478bd9Sstevel@tonic-gate { 481facf4a8dSllai struct stat sb; 4827c478bd9Sstevel@tonic-gate 483facf4a8dSllai if (s_stat("/reconfigure", &sb) == 0) { 484facf4a8dSllai (void) modctl(MODDEVNAME, MODDEVNAME_RECONFIG, 0); 4857c478bd9Sstevel@tonic-gate } 486facf4a8dSllai } 4877c478bd9Sstevel@tonic-gate 488facf4a8dSllai static void 489facf4a8dSllai modctl_sysavail() 490facf4a8dSllai { 491facf4a8dSllai /* 492facf4a8dSllai * Inform /dev that system is available, that 493facf4a8dSllai * implicit reconfig can now be performed. 494facf4a8dSllai */ 495facf4a8dSllai (void) modctl(MODDEVNAME, MODDEVNAME_SYSAVAIL, 0); 496facf4a8dSllai } 4977c478bd9Sstevel@tonic-gate 498facf4a8dSllai static void 499facf4a8dSllai set_lock_root(void) 500facf4a8dSllai { 501facf4a8dSllai struct stat sb; 502facf4a8dSllai char *lock_root; 503facf4a8dSllai size_t len; 5047c478bd9Sstevel@tonic-gate 505facf4a8dSllai lock_root = attr_root ? attr_root : root_dir; 5067c478bd9Sstevel@tonic-gate 507facf4a8dSllai len = strlen(lock_root) + strlen(ETCDEV) + 1; 508facf4a8dSllai etc_dev_dir = s_malloc(len); 509facf4a8dSllai (void) snprintf(etc_dev_dir, len, "%s%s", lock_root, ETCDEV); 5107c478bd9Sstevel@tonic-gate 511facf4a8dSllai if (s_stat(etc_dev_dir, &sb) != 0) { 512facf4a8dSllai s_mkdirp(etc_dev_dir, S_IRWXU|S_IRGRP|S_IXGRP|S_IROTH|S_IXOTH); 513facf4a8dSllai } else if (!S_ISDIR(sb.st_mode)) { 514facf4a8dSllai err_print(NOT_DIR, etc_dev_dir); 515facf4a8dSllai devfsadm_exit(1); 516537714daSvikram /*NOTREACHED*/ 517facf4a8dSllai } 5187c478bd9Sstevel@tonic-gate } 5197c478bd9Sstevel@tonic-gate 520facf4a8dSllai 5217c478bd9Sstevel@tonic-gate /* 5227c478bd9Sstevel@tonic-gate * Parse arguments for all 6 programs handled from devfsadm. 5237c478bd9Sstevel@tonic-gate */ 5247c478bd9Sstevel@tonic-gate static void 5257c478bd9Sstevel@tonic-gate parse_args(int argc, char *argv[]) 5267c478bd9Sstevel@tonic-gate { 5277c478bd9Sstevel@tonic-gate char opt; 5287c478bd9Sstevel@tonic-gate char get_linkcompat_opts = FALSE; 5297c478bd9Sstevel@tonic-gate char *compat_class; 5307c478bd9Sstevel@tonic-gate int num_aliases = 0; 5317c478bd9Sstevel@tonic-gate int len; 5327c478bd9Sstevel@tonic-gate int retval; 5336532b960SJerry Gilliam int config = TRUE; 5346532b960SJerry Gilliam int bind = FALSE; 5356532b960SJerry Gilliam int force_flag = FALSE; 5367c478bd9Sstevel@tonic-gate struct aliases *ap = NULL; 5377c478bd9Sstevel@tonic-gate struct aliases *a_head = NULL; 5387c478bd9Sstevel@tonic-gate struct aliases *a_tail = NULL; 5397c478bd9Sstevel@tonic-gate struct modconfig mc; 5407c478bd9Sstevel@tonic-gate 5416532b960SJerry Gilliam (void) bzero(&mc, sizeof (mc)); 5426532b960SJerry Gilliam 5437c478bd9Sstevel@tonic-gate if (strcmp(prog, DISKS) == 0) { 5447c478bd9Sstevel@tonic-gate compat_class = "disk"; 5457c478bd9Sstevel@tonic-gate get_linkcompat_opts = TRUE; 5467c478bd9Sstevel@tonic-gate 5477c478bd9Sstevel@tonic-gate } else if (strcmp(prog, TAPES) == 0) { 5487c478bd9Sstevel@tonic-gate compat_class = "tape"; 5497c478bd9Sstevel@tonic-gate get_linkcompat_opts = TRUE; 5507c478bd9Sstevel@tonic-gate 5517c478bd9Sstevel@tonic-gate } else if (strcmp(prog, PORTS) == 0) { 5527c478bd9Sstevel@tonic-gate compat_class = "port"; 5537c478bd9Sstevel@tonic-gate get_linkcompat_opts = TRUE; 5547c478bd9Sstevel@tonic-gate 5557c478bd9Sstevel@tonic-gate } else if (strcmp(prog, AUDLINKS) == 0) { 5567c478bd9Sstevel@tonic-gate compat_class = "audio"; 5577c478bd9Sstevel@tonic-gate get_linkcompat_opts = TRUE; 5587c478bd9Sstevel@tonic-gate 5597c478bd9Sstevel@tonic-gate } else if (strcmp(prog, DEVLINKS) == 0) { 5607c478bd9Sstevel@tonic-gate devlinktab_file = DEVLINKTAB_FILE; 5617c478bd9Sstevel@tonic-gate 5627c478bd9Sstevel@tonic-gate build_devices = FALSE; 5637c478bd9Sstevel@tonic-gate load_attach_drv = FALSE; 5647c478bd9Sstevel@tonic-gate 5657c478bd9Sstevel@tonic-gate while ((opt = getopt(argc, argv, "dnr:st:vV:")) != EOF) { 5667c478bd9Sstevel@tonic-gate switch (opt) { 5677c478bd9Sstevel@tonic-gate case 'd': 5687c478bd9Sstevel@tonic-gate file_mods = FALSE; 5697c478bd9Sstevel@tonic-gate flush_path_to_inst_enable = FALSE; 5707c478bd9Sstevel@tonic-gate devlinks_debug = TRUE; 5717c478bd9Sstevel@tonic-gate break; 5727c478bd9Sstevel@tonic-gate case 'n': 5737c478bd9Sstevel@tonic-gate /* prevent driver loading and deferred attach */ 5747c478bd9Sstevel@tonic-gate load_attach_drv = FALSE; 5757c478bd9Sstevel@tonic-gate break; 5767c478bd9Sstevel@tonic-gate case 'r': 577facf4a8dSllai set_root_devices_dev_dir(optarg); 5787c478bd9Sstevel@tonic-gate if (zone_pathcheck(root_dir) != 5797c478bd9Sstevel@tonic-gate DEVFSADM_SUCCESS) 5807c478bd9Sstevel@tonic-gate devfsadm_exit(1); 581537714daSvikram /*NOTREACHED*/ 5827c478bd9Sstevel@tonic-gate break; 5837c478bd9Sstevel@tonic-gate case 's': 5847c478bd9Sstevel@tonic-gate /* 5857c478bd9Sstevel@tonic-gate * suppress. don't create/remove links/nodes 5867c478bd9Sstevel@tonic-gate * useful with -v or -V 5877c478bd9Sstevel@tonic-gate */ 5887c478bd9Sstevel@tonic-gate file_mods = FALSE; 5897c478bd9Sstevel@tonic-gate flush_path_to_inst_enable = FALSE; 5907c478bd9Sstevel@tonic-gate break; 5917c478bd9Sstevel@tonic-gate case 't': 5927c478bd9Sstevel@tonic-gate /* supply a non-default table file */ 5937c478bd9Sstevel@tonic-gate devlinktab_file = optarg; 5947c478bd9Sstevel@tonic-gate break; 5957c478bd9Sstevel@tonic-gate case 'v': 5967c478bd9Sstevel@tonic-gate /* documented verbose flag */ 5977c478bd9Sstevel@tonic-gate add_verbose_id(VERBOSE_MID); 5987c478bd9Sstevel@tonic-gate break; 5997c478bd9Sstevel@tonic-gate case 'V': 6007c478bd9Sstevel@tonic-gate /* undocumented for extra verbose levels */ 6017c478bd9Sstevel@tonic-gate add_verbose_id(optarg); 6027c478bd9Sstevel@tonic-gate break; 6037c478bd9Sstevel@tonic-gate default: 6047c478bd9Sstevel@tonic-gate usage(); 6057c478bd9Sstevel@tonic-gate break; 6067c478bd9Sstevel@tonic-gate } 6077c478bd9Sstevel@tonic-gate } 6087c478bd9Sstevel@tonic-gate 6097c478bd9Sstevel@tonic-gate if (optind < argc) { 6107c478bd9Sstevel@tonic-gate usage(); 6117c478bd9Sstevel@tonic-gate } 6127c478bd9Sstevel@tonic-gate 6137c478bd9Sstevel@tonic-gate } else if (strcmp(prog, DRVCONFIG) == 0) { 614c9cc1492SJerry Gilliam int update_only = 0; 6157c478bd9Sstevel@tonic-gate build_dev = FALSE; 6167c478bd9Sstevel@tonic-gate 6177c478bd9Sstevel@tonic-gate while ((opt = 618c9cc1492SJerry Gilliam getopt(argc, argv, "a:bc:dfi:m:np:R:r:suvV:x")) != EOF) { 6197c478bd9Sstevel@tonic-gate switch (opt) { 6207c478bd9Sstevel@tonic-gate case 'a': 6217c478bd9Sstevel@tonic-gate ap = calloc(sizeof (struct aliases), 1); 6227c478bd9Sstevel@tonic-gate ap->a_name = dequote(optarg); 6237c478bd9Sstevel@tonic-gate len = strlen(ap->a_name) + 1; 6247c478bd9Sstevel@tonic-gate if (len > MAXMODCONFNAME) { 6257c478bd9Sstevel@tonic-gate err_print(ALIAS_TOO_LONG, 6267c478bd9Sstevel@tonic-gate MAXMODCONFNAME, ap->a_name); 6277c478bd9Sstevel@tonic-gate devfsadm_exit(1); 628537714daSvikram /*NOTREACHED*/ 6297c478bd9Sstevel@tonic-gate } 6307c478bd9Sstevel@tonic-gate ap->a_len = len; 6317c478bd9Sstevel@tonic-gate if (a_tail == NULL) { 6327c478bd9Sstevel@tonic-gate a_head = ap; 6337c478bd9Sstevel@tonic-gate } else { 6347c478bd9Sstevel@tonic-gate a_tail->a_next = ap; 6357c478bd9Sstevel@tonic-gate } 6367c478bd9Sstevel@tonic-gate a_tail = ap; 6377c478bd9Sstevel@tonic-gate num_aliases++; 6386532b960SJerry Gilliam bind = TRUE; 6397c478bd9Sstevel@tonic-gate break; 6407c478bd9Sstevel@tonic-gate case 'b': 6416532b960SJerry Gilliam bind = TRUE; 6427c478bd9Sstevel@tonic-gate break; 6437c478bd9Sstevel@tonic-gate case 'c': 6447c478bd9Sstevel@tonic-gate (void) strcpy(mc.drvclass, optarg); 6457c478bd9Sstevel@tonic-gate break; 6467c478bd9Sstevel@tonic-gate case 'd': 6477c478bd9Sstevel@tonic-gate /* 6487c478bd9Sstevel@tonic-gate * need to keep for compatibility, but 6497c478bd9Sstevel@tonic-gate * do nothing. 6507c478bd9Sstevel@tonic-gate */ 6517c478bd9Sstevel@tonic-gate break; 6526532b960SJerry Gilliam case 'f': 6536532b960SJerry Gilliam force_flag = TRUE; 6546532b960SJerry Gilliam break; 6557c478bd9Sstevel@tonic-gate case 'i': 6567c478bd9Sstevel@tonic-gate single_drv = TRUE; 6577c478bd9Sstevel@tonic-gate (void) strcpy(mc.drvname, optarg); 6587c478bd9Sstevel@tonic-gate driver = s_strdup(optarg); 6597c478bd9Sstevel@tonic-gate break; 6607c478bd9Sstevel@tonic-gate case 'm': 6617c478bd9Sstevel@tonic-gate mc.major = atoi(optarg); 6627c478bd9Sstevel@tonic-gate break; 6637c478bd9Sstevel@tonic-gate case 'n': 6647c478bd9Sstevel@tonic-gate /* prevent driver loading and deferred attach */ 6657c478bd9Sstevel@tonic-gate load_attach_drv = FALSE; 6667c478bd9Sstevel@tonic-gate break; 6677c478bd9Sstevel@tonic-gate case 'p': 6687c478bd9Sstevel@tonic-gate /* specify alternate path_to_inst file */ 6697c478bd9Sstevel@tonic-gate inst_file = s_strdup(optarg); 6707c478bd9Sstevel@tonic-gate break; 6717c478bd9Sstevel@tonic-gate case 'R': 6727c478bd9Sstevel@tonic-gate /* 6737c478bd9Sstevel@tonic-gate * Private flag for suninstall to populate 6747c478bd9Sstevel@tonic-gate * device information on the installed root. 6757c478bd9Sstevel@tonic-gate */ 6767c478bd9Sstevel@tonic-gate root_dir = s_strdup(optarg); 6777c478bd9Sstevel@tonic-gate if (zone_pathcheck(root_dir) != 6787c478bd9Sstevel@tonic-gate DEVFSADM_SUCCESS) 6797c478bd9Sstevel@tonic-gate devfsadm_exit(devfsadm_copy()); 680537714daSvikram /*NOTREACHED*/ 6817c478bd9Sstevel@tonic-gate break; 6827c478bd9Sstevel@tonic-gate case 'r': 6837c478bd9Sstevel@tonic-gate devices_dir = s_strdup(optarg); 6847c478bd9Sstevel@tonic-gate if (zone_pathcheck(devices_dir) != 6857c478bd9Sstevel@tonic-gate DEVFSADM_SUCCESS) 6867c478bd9Sstevel@tonic-gate devfsadm_exit(1); 687537714daSvikram /*NOTREACHED*/ 6887c478bd9Sstevel@tonic-gate break; 6897c478bd9Sstevel@tonic-gate case 's': 6907c478bd9Sstevel@tonic-gate /* 6917c478bd9Sstevel@tonic-gate * suppress. don't create nodes 6927c478bd9Sstevel@tonic-gate * useful with -v or -V 6937c478bd9Sstevel@tonic-gate */ 6947c478bd9Sstevel@tonic-gate file_mods = FALSE; 6957c478bd9Sstevel@tonic-gate flush_path_to_inst_enable = FALSE; 6967c478bd9Sstevel@tonic-gate break; 6976532b960SJerry Gilliam case 'u': 6986532b960SJerry Gilliam /* 6996532b960SJerry Gilliam * Invoked via update_drv(1m) to update 7006532b960SJerry Gilliam * the kernel's driver/alias binding 7016532b960SJerry Gilliam * when removing one or more aliases. 7026532b960SJerry Gilliam */ 7036532b960SJerry Gilliam config = FALSE; 7046532b960SJerry Gilliam break; 7057c478bd9Sstevel@tonic-gate case 'v': 7067c478bd9Sstevel@tonic-gate /* documented verbose flag */ 7077c478bd9Sstevel@tonic-gate add_verbose_id(VERBOSE_MID); 7087c478bd9Sstevel@tonic-gate break; 7097c478bd9Sstevel@tonic-gate case 'V': 7107c478bd9Sstevel@tonic-gate /* undocumented for extra verbose levels */ 7117c478bd9Sstevel@tonic-gate add_verbose_id(optarg); 7127c478bd9Sstevel@tonic-gate break; 713c9cc1492SJerry Gilliam case 'x': 714c9cc1492SJerry Gilliam update_only = 1; 715c9cc1492SJerry Gilliam break; 7167c478bd9Sstevel@tonic-gate default: 7177c478bd9Sstevel@tonic-gate usage(); 7187c478bd9Sstevel@tonic-gate } 7197c478bd9Sstevel@tonic-gate } 7207c478bd9Sstevel@tonic-gate 7217c478bd9Sstevel@tonic-gate if (optind < argc) { 7227c478bd9Sstevel@tonic-gate usage(); 7237c478bd9Sstevel@tonic-gate } 7247c478bd9Sstevel@tonic-gate 7256532b960SJerry Gilliam if (bind == TRUE) { 7266532b960SJerry Gilliam if ((mc.major == -1) || (mc.drvname[0] == NULL)) { 7276532b960SJerry Gilliam err_print(MAJOR_AND_B_FLAG); 7286532b960SJerry Gilliam devfsadm_exit(1); 7296532b960SJerry Gilliam /*NOTREACHED*/ 7306532b960SJerry Gilliam } 731c9cc1492SJerry Gilliam mc.flags = 0; 732c9cc1492SJerry Gilliam if (force_flag) 733c9cc1492SJerry Gilliam mc.flags |= MOD_UNBIND_OVERRIDE; 734c9cc1492SJerry Gilliam if (update_only) 735c9cc1492SJerry Gilliam mc.flags |= MOD_ADDMAJBIND_UPDATE; 7367c478bd9Sstevel@tonic-gate mc.num_aliases = num_aliases; 7377c478bd9Sstevel@tonic-gate mc.ap = a_head; 7386532b960SJerry Gilliam retval = modctl((config == TRUE) ? MODADDMAJBIND : 7396532b960SJerry Gilliam MODREMDRVALIAS, NULL, (caddr_t)&mc); 7407c478bd9Sstevel@tonic-gate if (retval < 0) { 7416532b960SJerry Gilliam err_print((config == TRUE) ? MODCTL_ADDMAJBIND : 7426532b960SJerry Gilliam MODCTL_REMMAJBIND); 7437c478bd9Sstevel@tonic-gate } 7447c478bd9Sstevel@tonic-gate devfsadm_exit(retval); 745537714daSvikram /*NOTREACHED*/ 7467c478bd9Sstevel@tonic-gate } 7477c478bd9Sstevel@tonic-gate 7487c478bd9Sstevel@tonic-gate } else if ((strcmp(prog, DEVFSADM) == 0) || 7497c478bd9Sstevel@tonic-gate (strcmp(prog, DEVFSADMD) == 0)) { 7507c478bd9Sstevel@tonic-gate char *zonename = NULL; 7517c478bd9Sstevel@tonic-gate int init_drvconf = 0; 7527c478bd9Sstevel@tonic-gate int init_perm = 0; 7537c478bd9Sstevel@tonic-gate int public_mode = 0; 754facf4a8dSllai int init_sysavail = 0; 7557c478bd9Sstevel@tonic-gate 7567c478bd9Sstevel@tonic-gate if (strcmp(prog, DEVFSADMD) == 0) { 7577c478bd9Sstevel@tonic-gate daemon_mode = TRUE; 7587c478bd9Sstevel@tonic-gate } 7597c478bd9Sstevel@tonic-gate 7607c478bd9Sstevel@tonic-gate devlinktab_file = DEVLINKTAB_FILE; 7617c478bd9Sstevel@tonic-gate 7627c478bd9Sstevel@tonic-gate while ((opt = getopt(argc, argv, 763c9cc1492SJerry Gilliam "a:Cc:deIi:l:np:PR:r:sSt:uvV:x:")) != EOF) { 764facf4a8dSllai if (opt == 'I' || opt == 'P' || opt == 'S') { 7657c478bd9Sstevel@tonic-gate if (public_mode) 7667c478bd9Sstevel@tonic-gate usage(); 7677c478bd9Sstevel@tonic-gate } else { 768facf4a8dSllai if (init_perm || init_drvconf || init_sysavail) 7697c478bd9Sstevel@tonic-gate usage(); 7707c478bd9Sstevel@tonic-gate public_mode = 1; 7717c478bd9Sstevel@tonic-gate } 7727c478bd9Sstevel@tonic-gate switch (opt) { 773facf4a8dSllai case 'a': 774facf4a8dSllai attr_root = s_strdup(optarg); 775facf4a8dSllai break; 7767c478bd9Sstevel@tonic-gate case 'C': 7777c478bd9Sstevel@tonic-gate cleanup = TRUE; 7787c478bd9Sstevel@tonic-gate break; 7797c478bd9Sstevel@tonic-gate case 'c': 7807c478bd9Sstevel@tonic-gate num_classes++; 7810a653502Swroche classes = s_realloc(classes, 7820a653502Swroche num_classes * sizeof (char *)); 7837c478bd9Sstevel@tonic-gate classes[num_classes - 1] = optarg; 7847c478bd9Sstevel@tonic-gate break; 78545916cd2Sjpk case 'd': 7867c478bd9Sstevel@tonic-gate if (daemon_mode == FALSE) { 78745916cd2Sjpk /* 78845916cd2Sjpk * Device allocation to be disabled. 78945916cd2Sjpk */ 79045916cd2Sjpk devalloc_flag = DA_OFF; 79145916cd2Sjpk build_dev = FALSE; 79245916cd2Sjpk } 79345916cd2Sjpk break; 79445916cd2Sjpk case 'e': 79545916cd2Sjpk if (daemon_mode == FALSE) { 79645916cd2Sjpk /* 79745916cd2Sjpk * Device allocation to be enabled. 79845916cd2Sjpk */ 79945916cd2Sjpk devalloc_flag = DA_ON; 8007c478bd9Sstevel@tonic-gate build_dev = FALSE; 8017c478bd9Sstevel@tonic-gate } 8027c478bd9Sstevel@tonic-gate break; 8037c478bd9Sstevel@tonic-gate case 'I': /* update kernel driver.conf cache */ 8047c478bd9Sstevel@tonic-gate if (daemon_mode == TRUE) 8057c478bd9Sstevel@tonic-gate usage(); 8067c478bd9Sstevel@tonic-gate init_drvconf = 1; 8077c478bd9Sstevel@tonic-gate break; 8087c478bd9Sstevel@tonic-gate case 'i': 8097c478bd9Sstevel@tonic-gate single_drv = TRUE; 8107c478bd9Sstevel@tonic-gate driver = s_strdup(optarg); 8117c478bd9Sstevel@tonic-gate break; 8127c478bd9Sstevel@tonic-gate case 'l': 8137c478bd9Sstevel@tonic-gate /* specify an alternate module load path */ 8147c478bd9Sstevel@tonic-gate module_dirs = s_strdup(optarg); 8157c478bd9Sstevel@tonic-gate break; 8167c478bd9Sstevel@tonic-gate case 'n': 8177c478bd9Sstevel@tonic-gate /* prevent driver loading and deferred attach */ 8187c478bd9Sstevel@tonic-gate load_attach_drv = FALSE; 8197c478bd9Sstevel@tonic-gate break; 8207c478bd9Sstevel@tonic-gate case 'p': 8217c478bd9Sstevel@tonic-gate /* specify alternate path_to_inst file */ 8227c478bd9Sstevel@tonic-gate inst_file = s_strdup(optarg); 8237c478bd9Sstevel@tonic-gate break; 8247c478bd9Sstevel@tonic-gate case 'P': 8257c478bd9Sstevel@tonic-gate if (daemon_mode == TRUE) 8267c478bd9Sstevel@tonic-gate usage(); 8277c478bd9Sstevel@tonic-gate /* load minor_perm and device_policy */ 8287c478bd9Sstevel@tonic-gate init_perm = 1; 8297c478bd9Sstevel@tonic-gate break; 8307c478bd9Sstevel@tonic-gate case 'R': 8317c478bd9Sstevel@tonic-gate /* 8327c478bd9Sstevel@tonic-gate * Private flag for suninstall to populate 8337c478bd9Sstevel@tonic-gate * device information on the installed root. 8347c478bd9Sstevel@tonic-gate */ 8357c478bd9Sstevel@tonic-gate root_dir = s_strdup(optarg); 8367c478bd9Sstevel@tonic-gate devfsadm_exit(devfsadm_copy()); 837537714daSvikram /*NOTREACHED*/ 8387c478bd9Sstevel@tonic-gate break; 8397c478bd9Sstevel@tonic-gate case 'r': 840facf4a8dSllai set_root_devices_dev_dir(optarg); 8417c478bd9Sstevel@tonic-gate break; 8427c478bd9Sstevel@tonic-gate case 's': 8437c478bd9Sstevel@tonic-gate /* 8447c478bd9Sstevel@tonic-gate * suppress. don't create/remove links/nodes 8457c478bd9Sstevel@tonic-gate * useful with -v or -V 8467c478bd9Sstevel@tonic-gate */ 8477c478bd9Sstevel@tonic-gate file_mods = FALSE; 8487c478bd9Sstevel@tonic-gate flush_path_to_inst_enable = FALSE; 8497c478bd9Sstevel@tonic-gate break; 850facf4a8dSllai case 'S': 851facf4a8dSllai if (daemon_mode == TRUE) 852facf4a8dSllai usage(); 853facf4a8dSllai init_sysavail = 1; 854facf4a8dSllai break; 8557c478bd9Sstevel@tonic-gate case 't': 8567c478bd9Sstevel@tonic-gate devlinktab_file = optarg; 8577c478bd9Sstevel@tonic-gate break; 858c9cc1492SJerry Gilliam case 'u': /* complete configuration after */ 859c9cc1492SJerry Gilliam /* adding a driver update-only */ 860c9cc1492SJerry Gilliam if (daemon_mode == TRUE) 861c9cc1492SJerry Gilliam usage(); 862c9cc1492SJerry Gilliam update_all_drivers = TRUE; 863c9cc1492SJerry Gilliam break; 8647c478bd9Sstevel@tonic-gate case 'v': 8657c478bd9Sstevel@tonic-gate /* documented verbose flag */ 8667c478bd9Sstevel@tonic-gate add_verbose_id(VERBOSE_MID); 8677c478bd9Sstevel@tonic-gate break; 8687c478bd9Sstevel@tonic-gate case 'V': 8697c478bd9Sstevel@tonic-gate /* undocumented: specify verbose lvl */ 8707c478bd9Sstevel@tonic-gate add_verbose_id(optarg); 8717c478bd9Sstevel@tonic-gate break; 8727c478bd9Sstevel@tonic-gate case 'x': 8737c478bd9Sstevel@tonic-gate /* 8747c478bd9Sstevel@tonic-gate * x is the "private switch" option. The 8757c478bd9Sstevel@tonic-gate * goal is to not suck up all the other 8767c478bd9Sstevel@tonic-gate * option letters. 8777c478bd9Sstevel@tonic-gate */ 8787c478bd9Sstevel@tonic-gate if (strcmp(optarg, "update_devlinksdb") == 0) { 8797c478bd9Sstevel@tonic-gate update_database = TRUE; 8807c478bd9Sstevel@tonic-gate } else if (strcmp(optarg, "no_dev") == 0) { 8817c478bd9Sstevel@tonic-gate /* don't build /dev */ 8827c478bd9Sstevel@tonic-gate build_dev = FALSE; 8837c478bd9Sstevel@tonic-gate } else if (strcmp(optarg, "no_devices") == 0) { 8847c478bd9Sstevel@tonic-gate /* don't build /devices */ 8857c478bd9Sstevel@tonic-gate build_devices = FALSE; 8867c478bd9Sstevel@tonic-gate } else if (strcmp(optarg, "no_p2i") == 0) { 8877c478bd9Sstevel@tonic-gate /* don't flush path_to_inst */ 8887c478bd9Sstevel@tonic-gate flush_path_to_inst_enable = FALSE; 8897c478bd9Sstevel@tonic-gate } else if (strcmp(optarg, "use_dicache") == 0) { 8907c478bd9Sstevel@tonic-gate use_snapshot_cache = TRUE; 8917c478bd9Sstevel@tonic-gate } else { 8927c478bd9Sstevel@tonic-gate usage(); 8937c478bd9Sstevel@tonic-gate } 8947c478bd9Sstevel@tonic-gate break; 8957c478bd9Sstevel@tonic-gate default: 8967c478bd9Sstevel@tonic-gate usage(); 8977c478bd9Sstevel@tonic-gate break; 8987c478bd9Sstevel@tonic-gate } 8997c478bd9Sstevel@tonic-gate } 9007c478bd9Sstevel@tonic-gate if (optind < argc) { 9017c478bd9Sstevel@tonic-gate usage(); 9027c478bd9Sstevel@tonic-gate } 9037c478bd9Sstevel@tonic-gate 9047c478bd9Sstevel@tonic-gate /* 9057c478bd9Sstevel@tonic-gate * We're not in zone mode; Check to see if the rootpath 9067c478bd9Sstevel@tonic-gate * collides with any zonepaths. 9077c478bd9Sstevel@tonic-gate */ 9087c478bd9Sstevel@tonic-gate if (zonename == NULL) { 9097c478bd9Sstevel@tonic-gate if (zone_pathcheck(root_dir) != DEVFSADM_SUCCESS) 9107c478bd9Sstevel@tonic-gate devfsadm_exit(1); 911537714daSvikram /*NOTREACHED*/ 9127c478bd9Sstevel@tonic-gate } 9137c478bd9Sstevel@tonic-gate 914facf4a8dSllai if (init_drvconf || init_perm || init_sysavail) { 9157c478bd9Sstevel@tonic-gate /* 9167c478bd9Sstevel@tonic-gate * Load minor perm before force-loading drivers 9177c478bd9Sstevel@tonic-gate * so the correct permissions are picked up. 9187c478bd9Sstevel@tonic-gate */ 919facf4a8dSllai if (init_perm) { 920facf4a8dSllai check_reconfig_state(); 9217c478bd9Sstevel@tonic-gate load_dev_acl(); 922facf4a8dSllai } 9237c478bd9Sstevel@tonic-gate if (init_drvconf) 924c9cc1492SJerry Gilliam update_drvconf((major_t)-1, 0); 925facf4a8dSllai if (init_sysavail) 926facf4a8dSllai modctl_sysavail(); 9277c478bd9Sstevel@tonic-gate devfsadm_exit(0); 928537714daSvikram /*NOTREACHED*/ 9297c478bd9Sstevel@tonic-gate } 9307c478bd9Sstevel@tonic-gate } 9317c478bd9Sstevel@tonic-gate 9327c478bd9Sstevel@tonic-gate 9337c478bd9Sstevel@tonic-gate if (get_linkcompat_opts == TRUE) { 9347c478bd9Sstevel@tonic-gate 9357c478bd9Sstevel@tonic-gate build_devices = FALSE; 9367c478bd9Sstevel@tonic-gate load_attach_drv = FALSE; 9377c478bd9Sstevel@tonic-gate num_classes++; 9387c478bd9Sstevel@tonic-gate classes = s_realloc(classes, num_classes * 9397c478bd9Sstevel@tonic-gate sizeof (char *)); 9407c478bd9Sstevel@tonic-gate classes[num_classes - 1] = compat_class; 9417c478bd9Sstevel@tonic-gate 9427c478bd9Sstevel@tonic-gate while ((opt = getopt(argc, argv, "Cnr:svV:")) != EOF) { 9437c478bd9Sstevel@tonic-gate switch (opt) { 9447c478bd9Sstevel@tonic-gate case 'C': 9457c478bd9Sstevel@tonic-gate cleanup = TRUE; 9467c478bd9Sstevel@tonic-gate break; 9477c478bd9Sstevel@tonic-gate case 'n': 9487c478bd9Sstevel@tonic-gate /* prevent driver loading or deferred attach */ 9497c478bd9Sstevel@tonic-gate load_attach_drv = FALSE; 9507c478bd9Sstevel@tonic-gate break; 9517c478bd9Sstevel@tonic-gate case 'r': 952facf4a8dSllai set_root_devices_dev_dir(optarg); 9537c478bd9Sstevel@tonic-gate if (zone_pathcheck(root_dir) != 9547c478bd9Sstevel@tonic-gate DEVFSADM_SUCCESS) 9557c478bd9Sstevel@tonic-gate devfsadm_exit(1); 956537714daSvikram /*NOTREACHED*/ 9577c478bd9Sstevel@tonic-gate break; 9587c478bd9Sstevel@tonic-gate case 's': 9597c478bd9Sstevel@tonic-gate /* suppress. don't create/remove links/nodes */ 9607c478bd9Sstevel@tonic-gate /* useful with -v or -V */ 9617c478bd9Sstevel@tonic-gate file_mods = FALSE; 9627c478bd9Sstevel@tonic-gate flush_path_to_inst_enable = FALSE; 9637c478bd9Sstevel@tonic-gate break; 9647c478bd9Sstevel@tonic-gate case 'v': 9657c478bd9Sstevel@tonic-gate /* documented verbose flag */ 9667c478bd9Sstevel@tonic-gate add_verbose_id(VERBOSE_MID); 9677c478bd9Sstevel@tonic-gate break; 9687c478bd9Sstevel@tonic-gate case 'V': 9697c478bd9Sstevel@tonic-gate /* undocumented for extra verbose levels */ 9707c478bd9Sstevel@tonic-gate add_verbose_id(optarg); 9717c478bd9Sstevel@tonic-gate break; 9727c478bd9Sstevel@tonic-gate default: 9737c478bd9Sstevel@tonic-gate usage(); 9747c478bd9Sstevel@tonic-gate } 9757c478bd9Sstevel@tonic-gate } 9767c478bd9Sstevel@tonic-gate if (optind < argc) { 9777c478bd9Sstevel@tonic-gate usage(); 9787c478bd9Sstevel@tonic-gate } 9797c478bd9Sstevel@tonic-gate } 980facf4a8dSllai set_lock_root(); 9817c478bd9Sstevel@tonic-gate } 9827c478bd9Sstevel@tonic-gate 9837c478bd9Sstevel@tonic-gate void 9847c478bd9Sstevel@tonic-gate usage(void) 9857c478bd9Sstevel@tonic-gate { 9867c478bd9Sstevel@tonic-gate if (strcmp(prog, DEVLINKS) == 0) { 9877c478bd9Sstevel@tonic-gate err_print(DEVLINKS_USAGE); 9887c478bd9Sstevel@tonic-gate } else if (strcmp(prog, DRVCONFIG) == 0) { 9897c478bd9Sstevel@tonic-gate err_print(DRVCONFIG_USAGE); 9907c478bd9Sstevel@tonic-gate } else if ((strcmp(prog, DEVFSADM) == 0) || 9910a653502Swroche (strcmp(prog, DEVFSADMD) == 0)) { 9927c478bd9Sstevel@tonic-gate err_print(DEVFSADM_USAGE); 9937c478bd9Sstevel@tonic-gate } else { 9947c478bd9Sstevel@tonic-gate err_print(COMPAT_LINK_USAGE); 9957c478bd9Sstevel@tonic-gate } 9967c478bd9Sstevel@tonic-gate 9977c478bd9Sstevel@tonic-gate devfsadm_exit(1); 998537714daSvikram /*NOTREACHED*/ 9997c478bd9Sstevel@tonic-gate } 10007c478bd9Sstevel@tonic-gate 10017c478bd9Sstevel@tonic-gate static void 10027c478bd9Sstevel@tonic-gate devi_tree_walk(struct dca_impl *dcip, int flags, char *ev_subclass) 10037c478bd9Sstevel@tonic-gate { 10047c478bd9Sstevel@tonic-gate char *msg, *name; 10057c478bd9Sstevel@tonic-gate struct mlist mlist = {0}; 10067c478bd9Sstevel@tonic-gate di_node_t node; 10077c478bd9Sstevel@tonic-gate 10087c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "devi_tree_walk: root=%s, minor=%s, driver=%s," 10097c478bd9Sstevel@tonic-gate " error=%d, flags=%u\n", dcip->dci_root, 10107c478bd9Sstevel@tonic-gate dcip->dci_minor ? dcip->dci_minor : "<NULL>", 10117c478bd9Sstevel@tonic-gate dcip->dci_driver ? dcip->dci_driver : "<NULL>", dcip->dci_error, 10127c478bd9Sstevel@tonic-gate dcip->dci_flags); 10137c478bd9Sstevel@tonic-gate 10147c478bd9Sstevel@tonic-gate assert(dcip->dci_root); 10157c478bd9Sstevel@tonic-gate 10167c478bd9Sstevel@tonic-gate if (dcip->dci_flags & DCA_LOAD_DRV) { 10177c478bd9Sstevel@tonic-gate node = di_init_driver(dcip->dci_driver, flags); 10187c478bd9Sstevel@tonic-gate msg = DRIVER_FAILURE; 10197c478bd9Sstevel@tonic-gate name = dcip->dci_driver; 10207c478bd9Sstevel@tonic-gate } else { 10217c478bd9Sstevel@tonic-gate node = di_init(dcip->dci_root, flags); 10227c478bd9Sstevel@tonic-gate msg = DI_INIT_FAILED; 10237c478bd9Sstevel@tonic-gate name = dcip->dci_root; 10247c478bd9Sstevel@tonic-gate } 10257c478bd9Sstevel@tonic-gate 10267c478bd9Sstevel@tonic-gate if (node == DI_NODE_NIL) { 10277c478bd9Sstevel@tonic-gate dcip->dci_error = errno; 10287c478bd9Sstevel@tonic-gate /* 10297c478bd9Sstevel@tonic-gate * Rapid hotplugging (commonly seen during USB testing), 10307c478bd9Sstevel@tonic-gate * may remove a device before the create event for it 10317c478bd9Sstevel@tonic-gate * has been processed. To prevent alarming users with 10327c478bd9Sstevel@tonic-gate * a superfluous message, we suppress error messages 10337c478bd9Sstevel@tonic-gate * for ENXIO and hotplug. 10347c478bd9Sstevel@tonic-gate */ 10357c478bd9Sstevel@tonic-gate if (!(errno == ENXIO && (dcip->dci_flags & DCA_HOT_PLUG))) 10367c478bd9Sstevel@tonic-gate err_print(msg, name, strerror(dcip->dci_error)); 10377c478bd9Sstevel@tonic-gate return; 10387c478bd9Sstevel@tonic-gate } 10397c478bd9Sstevel@tonic-gate 10407c478bd9Sstevel@tonic-gate if (dcip->dci_flags & DCA_FLUSH_PATHINST) 10417c478bd9Sstevel@tonic-gate flush_path_to_inst(); 10427c478bd9Sstevel@tonic-gate 10437c478bd9Sstevel@tonic-gate dcip->dci_arg = &mlist; 1044*94c894bbSVikram Hegde devi_root_node = node; /* protected by lock_dev() */ 10457c478bd9Sstevel@tonic-gate 10467c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "walking device tree\n"); 10477c478bd9Sstevel@tonic-gate 10487c478bd9Sstevel@tonic-gate (void) di_walk_minor(node, NULL, DI_CHECK_ALIAS, dcip, 10497c478bd9Sstevel@tonic-gate check_minor_type); 10507c478bd9Sstevel@tonic-gate 10517c478bd9Sstevel@tonic-gate process_deferred_links(dcip, DCA_CREATE_LINK); 10527c478bd9Sstevel@tonic-gate 10537c478bd9Sstevel@tonic-gate dcip->dci_arg = NULL; 10547c478bd9Sstevel@tonic-gate 10557c478bd9Sstevel@tonic-gate /* 10567c478bd9Sstevel@tonic-gate * Finished creating devfs files and dev links. 10570dc974a9SCathy Zhou * Log sysevent. 10587c478bd9Sstevel@tonic-gate */ 10597c478bd9Sstevel@tonic-gate if (ev_subclass) 1060f05faa4eSjacobs build_and_enq_event(EC_DEV_ADD, ev_subclass, dcip->dci_root, 106130294554Sphitran node, dcip->dci_minor); 10627c478bd9Sstevel@tonic-gate 106345916cd2Sjpk /* Add new device to device allocation database */ 106445916cd2Sjpk if (system_labeled && update_devdb) { 106545916cd2Sjpk _update_devalloc_db(&devlist, 0, DA_ADD, NULL, root_dir); 106645916cd2Sjpk update_devdb = 0; 106745916cd2Sjpk } 106845916cd2Sjpk 1069*94c894bbSVikram Hegde devi_root_node = DI_NODE_NIL; /* protected by lock_dev() */ 10707c478bd9Sstevel@tonic-gate di_fini(node); 10717c478bd9Sstevel@tonic-gate } 10727c478bd9Sstevel@tonic-gate 10737c478bd9Sstevel@tonic-gate static void 10747c478bd9Sstevel@tonic-gate process_deferred_links(struct dca_impl *dcip, int flags) 10757c478bd9Sstevel@tonic-gate { 10767c478bd9Sstevel@tonic-gate struct mlist *dep; 10777c478bd9Sstevel@tonic-gate struct minor *mp, *smp; 10787c478bd9Sstevel@tonic-gate 10797c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "processing deferred links\n"); 10807c478bd9Sstevel@tonic-gate 10817c478bd9Sstevel@tonic-gate dep = dcip->dci_arg; 10827c478bd9Sstevel@tonic-gate 10837c478bd9Sstevel@tonic-gate /* 10847c478bd9Sstevel@tonic-gate * The list head is not used during the deferred create phase 10857c478bd9Sstevel@tonic-gate */ 10867c478bd9Sstevel@tonic-gate dcip->dci_arg = NULL; 10877c478bd9Sstevel@tonic-gate 10887c478bd9Sstevel@tonic-gate assert(dep); 10897c478bd9Sstevel@tonic-gate assert((dep->head == NULL) ^ (dep->tail != NULL)); 10907c478bd9Sstevel@tonic-gate assert(flags == DCA_FREE_LIST || flags == DCA_CREATE_LINK); 10917c478bd9Sstevel@tonic-gate 10927c478bd9Sstevel@tonic-gate for (smp = NULL, mp = dep->head; mp; mp = mp->next) { 10937c478bd9Sstevel@tonic-gate if (flags == DCA_CREATE_LINK) 10947c478bd9Sstevel@tonic-gate (void) check_minor_type(mp->node, mp->minor, dcip); 10957c478bd9Sstevel@tonic-gate free(smp); 10967c478bd9Sstevel@tonic-gate smp = mp; 10977c478bd9Sstevel@tonic-gate } 10987c478bd9Sstevel@tonic-gate 10997c478bd9Sstevel@tonic-gate free(smp); 11007c478bd9Sstevel@tonic-gate } 11017c478bd9Sstevel@tonic-gate 11027c478bd9Sstevel@tonic-gate /* 11037c478bd9Sstevel@tonic-gate * Called in non-daemon mode to take a snap shot of the devinfo tree. 11047c478bd9Sstevel@tonic-gate * Then it calls the appropriate functions to build /devices and /dev. 11057c478bd9Sstevel@tonic-gate * It also flushes path_to_inst. 110698a9beefShtk * Except in the devfsadm -i (single driver case), the flags used by devfsadm 110798a9beefShtk * needs to match DI_CACHE_SNAPSHOT_FLAGS. That will make DINFOCACHE snapshot 110898a9beefShtk * updated. 11097c478bd9Sstevel@tonic-gate */ 11107c478bd9Sstevel@tonic-gate void 11117c478bd9Sstevel@tonic-gate process_devinfo_tree() 11127c478bd9Sstevel@tonic-gate { 111398a9beefShtk uint_t flags; 11147c478bd9Sstevel@tonic-gate struct dca_impl dci; 11157c478bd9Sstevel@tonic-gate char name[MAXNAMELEN]; 11167c478bd9Sstevel@tonic-gate char *fcn = "process_devinfo_tree: "; 11177c478bd9Sstevel@tonic-gate 11187c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "%senter\n", fcn); 11197c478bd9Sstevel@tonic-gate 11207c478bd9Sstevel@tonic-gate dca_impl_init("/", NULL, &dci); 11217c478bd9Sstevel@tonic-gate 11227c478bd9Sstevel@tonic-gate lock_dev(); 11237c478bd9Sstevel@tonic-gate 11247c478bd9Sstevel@tonic-gate /* 11257c478bd9Sstevel@tonic-gate * Update kernel driver.conf cache when devfsadm/drvconfig 11267c478bd9Sstevel@tonic-gate * is invoked to build /devices and /dev. 11277c478bd9Sstevel@tonic-gate */ 1128c9cc1492SJerry Gilliam if (update_all_drivers || load_attach_drv) { 1129c9cc1492SJerry Gilliam update_drvconf((major_t)-1, 1130c9cc1492SJerry Gilliam update_all_drivers ? MOD_LOADDRVCONF_RECONF : 0); 1131c9cc1492SJerry Gilliam } 11327c478bd9Sstevel@tonic-gate 11337c478bd9Sstevel@tonic-gate if (single_drv == TRUE) { 11347c478bd9Sstevel@tonic-gate /* 11357c478bd9Sstevel@tonic-gate * load a single driver, but walk the entire devinfo tree 11367c478bd9Sstevel@tonic-gate */ 11377c478bd9Sstevel@tonic-gate if (load_attach_drv == FALSE) 11387c478bd9Sstevel@tonic-gate err_print(DRV_LOAD_REQD); 11397c478bd9Sstevel@tonic-gate 11407c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "%sattaching driver (%s)\n", fcn, driver); 11417c478bd9Sstevel@tonic-gate 11427c478bd9Sstevel@tonic-gate dci.dci_flags |= DCA_LOAD_DRV; 11437c478bd9Sstevel@tonic-gate (void) snprintf(name, sizeof (name), "%s", driver); 11447c478bd9Sstevel@tonic-gate dci.dci_driver = name; 114598a9beefShtk flags = DINFOCPYALL | DINFOPATH; 11467c478bd9Sstevel@tonic-gate 11477c478bd9Sstevel@tonic-gate } else if (load_attach_drv == TRUE) { 11487c478bd9Sstevel@tonic-gate /* 114945916cd2Sjpk * Load and attach all drivers, then walk the entire tree. 11507c478bd9Sstevel@tonic-gate * If the cache flag is set, use DINFOCACHE to get cached 11517c478bd9Sstevel@tonic-gate * data. 11527c478bd9Sstevel@tonic-gate */ 11537c478bd9Sstevel@tonic-gate if (use_snapshot_cache == TRUE) { 11547c478bd9Sstevel@tonic-gate flags = DINFOCACHE; 11557c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "%susing snapshot cache\n", fcn); 11567c478bd9Sstevel@tonic-gate } else { 11577c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "%sattaching all drivers\n", fcn); 115898a9beefShtk flags = DI_CACHE_SNAPSHOT_FLAGS; 11593c34adc5Sramat if (cleanup) { 11603c34adc5Sramat /* 11613c34adc5Sramat * remove dangling entries from /etc/devices 11623c34adc5Sramat * files. 11633c34adc5Sramat */ 11643c34adc5Sramat flags |= DINFOCLEANUP; 11653c34adc5Sramat } 11667c478bd9Sstevel@tonic-gate } 116734087db8Shtk } else { 116834087db8Shtk /* 116934087db8Shtk * For devlinks, disks, ports, tapes and devfsadm -n, 117034087db8Shtk * just need to take a snapshot with active devices. 117134087db8Shtk */ 117234087db8Shtk vprint(CHATTY_MID, "%staking snapshot of active devices\n", 11730a653502Swroche fcn); 117434087db8Shtk flags = DINFOCPYALL; 11757c478bd9Sstevel@tonic-gate } 11767c478bd9Sstevel@tonic-gate 11777c478bd9Sstevel@tonic-gate if (((load_attach_drv == TRUE) || (single_drv == TRUE)) && 11787c478bd9Sstevel@tonic-gate (build_devices == TRUE)) { 11797c478bd9Sstevel@tonic-gate dci.dci_flags |= DCA_FLUSH_PATHINST; 11807c478bd9Sstevel@tonic-gate } 11817c478bd9Sstevel@tonic-gate 11827c478bd9Sstevel@tonic-gate /* handle pre-cleanup operations desired by the modules. */ 11837c478bd9Sstevel@tonic-gate pre_and_post_cleanup(RM_PRE); 11847c478bd9Sstevel@tonic-gate 11857c478bd9Sstevel@tonic-gate devi_tree_walk(&dci, flags, NULL); 11867c478bd9Sstevel@tonic-gate 11877c478bd9Sstevel@tonic-gate if (dci.dci_error) { 11887c478bd9Sstevel@tonic-gate devfsadm_exit(1); 1189537714daSvikram /*NOTREACHED*/ 11907c478bd9Sstevel@tonic-gate } 11917c478bd9Sstevel@tonic-gate 11927c478bd9Sstevel@tonic-gate /* handle post-cleanup operations desired by the modules. */ 11937c478bd9Sstevel@tonic-gate pre_and_post_cleanup(RM_POST); 11947c478bd9Sstevel@tonic-gate 11957c478bd9Sstevel@tonic-gate unlock_dev(SYNC_STATE); 11967c478bd9Sstevel@tonic-gate } 11977c478bd9Sstevel@tonic-gate 11987c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 11997c478bd9Sstevel@tonic-gate static void 12007c478bd9Sstevel@tonic-gate print_cache_signal(int signo) 12017c478bd9Sstevel@tonic-gate { 12027c478bd9Sstevel@tonic-gate if (signal(SIGUSR1, print_cache_signal) == SIG_ERR) { 12037c478bd9Sstevel@tonic-gate err_print("signal SIGUSR1 failed: %s\n", strerror(errno)); 12047c478bd9Sstevel@tonic-gate devfsadm_exit(1); 1205537714daSvikram /*NOTREACHED*/ 12067c478bd9Sstevel@tonic-gate } 12077c478bd9Sstevel@tonic-gate } 12087c478bd9Sstevel@tonic-gate 1209facf4a8dSllai static void 1210facf4a8dSllai revoke_lookup_door(void) 1211facf4a8dSllai { 1212facf4a8dSllai if (lookup_door_fd != -1) { 1213facf4a8dSllai if (door_revoke(lookup_door_fd) == -1) { 1214facf4a8dSllai err_print("door_revoke of %s failed - %s\n", 1215facf4a8dSllai lookup_door_path, strerror(errno)); 1216facf4a8dSllai } 1217facf4a8dSllai } 1218facf4a8dSllai } 1219facf4a8dSllai 1220facf4a8dSllai /*ARGSUSED*/ 1221facf4a8dSllai static void 1222facf4a8dSllai catch_exit(int signo) 1223facf4a8dSllai { 1224facf4a8dSllai revoke_lookup_door(); 1225facf4a8dSllai } 1226facf4a8dSllai 12277c478bd9Sstevel@tonic-gate /* 12287c478bd9Sstevel@tonic-gate * Register with eventd for messages. Create doors for synchronous 12297c478bd9Sstevel@tonic-gate * link creation. 12307c478bd9Sstevel@tonic-gate */ 12317c478bd9Sstevel@tonic-gate static void 12327c478bd9Sstevel@tonic-gate daemon_update(void) 12337c478bd9Sstevel@tonic-gate { 12347c478bd9Sstevel@tonic-gate int fd; 12357c478bd9Sstevel@tonic-gate char *fcn = "daemon_update: "; 12367c478bd9Sstevel@tonic-gate char door_file[MAXPATHLEN]; 12377c478bd9Sstevel@tonic-gate const char *subclass_list; 12387c478bd9Sstevel@tonic-gate sysevent_handle_t *sysevent_hp; 12397c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "%senter\n", fcn); 12407c478bd9Sstevel@tonic-gate 12417c478bd9Sstevel@tonic-gate if (signal(SIGUSR1, print_cache_signal) == SIG_ERR) { 12427c478bd9Sstevel@tonic-gate err_print("signal SIGUSR1 failed: %s\n", strerror(errno)); 12437c478bd9Sstevel@tonic-gate devfsadm_exit(1); 1244537714daSvikram /*NOTREACHED*/ 12457c478bd9Sstevel@tonic-gate } 1246facf4a8dSllai if (signal(SIGTERM, catch_exit) == SIG_ERR) { 1247facf4a8dSllai err_print("signal SIGTERM failed: %s\n", strerror(errno)); 1248facf4a8dSllai devfsadm_exit(1); 1249537714daSvikram /*NOTREACHED*/ 1250facf4a8dSllai } 12517c478bd9Sstevel@tonic-gate 12527c478bd9Sstevel@tonic-gate if (snprintf(door_file, sizeof (door_file), 1253facf4a8dSllai "%s%s", attr_root ? attr_root : root_dir, DEVFSADM_SERVICE_DOOR) 1254facf4a8dSllai >= sizeof (door_file)) { 12557c478bd9Sstevel@tonic-gate err_print("update_daemon failed to open sysevent service " 12567c478bd9Sstevel@tonic-gate "door\n"); 12577c478bd9Sstevel@tonic-gate devfsadm_exit(1); 1258537714daSvikram /*NOTREACHED*/ 12597c478bd9Sstevel@tonic-gate } 12607c478bd9Sstevel@tonic-gate if ((sysevent_hp = sysevent_open_channel_alt( 12617c478bd9Sstevel@tonic-gate door_file)) == NULL) { 12627c478bd9Sstevel@tonic-gate err_print(CANT_CREATE_DOOR, 12630a653502Swroche door_file, strerror(errno)); 12647c478bd9Sstevel@tonic-gate devfsadm_exit(1); 1265537714daSvikram /*NOTREACHED*/ 12667c478bd9Sstevel@tonic-gate } 12677c478bd9Sstevel@tonic-gate if (sysevent_bind_subscriber(sysevent_hp, event_handler) != 0) { 12687c478bd9Sstevel@tonic-gate err_print(CANT_CREATE_DOOR, 12697c478bd9Sstevel@tonic-gate door_file, strerror(errno)); 12707c478bd9Sstevel@tonic-gate (void) sysevent_close_channel(sysevent_hp); 12717c478bd9Sstevel@tonic-gate devfsadm_exit(1); 1272537714daSvikram /*NOTREACHED*/ 12737c478bd9Sstevel@tonic-gate } 12747c478bd9Sstevel@tonic-gate subclass_list = EC_SUB_ALL; 12757c478bd9Sstevel@tonic-gate if (sysevent_register_event(sysevent_hp, EC_ALL, &subclass_list, 1) 12767c478bd9Sstevel@tonic-gate != 0) { 12777c478bd9Sstevel@tonic-gate err_print(CANT_CREATE_DOOR, 12787c478bd9Sstevel@tonic-gate door_file, strerror(errno)); 12797c478bd9Sstevel@tonic-gate (void) sysevent_unbind_subscriber(sysevent_hp); 12807c478bd9Sstevel@tonic-gate (void) sysevent_close_channel(sysevent_hp); 12817c478bd9Sstevel@tonic-gate devfsadm_exit(1); 1282537714daSvikram /*NOTREACHED*/ 12837c478bd9Sstevel@tonic-gate } 1284facf4a8dSllai if (snprintf(door_file, sizeof (door_file), "%s/%s", 1285facf4a8dSllai etc_dev_dir, DEVFSADM_SYNCH_DOOR) >= sizeof (door_file)) { 1286facf4a8dSllai err_print(CANT_CREATE_DOOR, DEVFSADM_SYNCH_DOOR, 12877c478bd9Sstevel@tonic-gate strerror(ENAMETOOLONG)); 12887c478bd9Sstevel@tonic-gate devfsadm_exit(1); 1289537714daSvikram /*NOTREACHED*/ 12907c478bd9Sstevel@tonic-gate } 1291facf4a8dSllai 12927c478bd9Sstevel@tonic-gate (void) s_unlink(door_file); 1293facf4a8dSllai if ((fd = open(door_file, O_RDWR | O_CREAT, SYNCH_DOOR_PERMS)) == -1) { 1294facf4a8dSllai err_print(CANT_CREATE_DOOR, door_file, strerror(errno)); 12957c478bd9Sstevel@tonic-gate devfsadm_exit(1); 1296537714daSvikram /*NOTREACHED*/ 12977c478bd9Sstevel@tonic-gate } 12987c478bd9Sstevel@tonic-gate (void) close(fd); 1299facf4a8dSllai 1300facf4a8dSllai if ((fd = door_create(sync_handler, NULL, 13017c478bd9Sstevel@tonic-gate DOOR_REFUSE_DESC | DOOR_NO_CANCEL)) == -1) { 1302facf4a8dSllai err_print(CANT_CREATE_DOOR, door_file, strerror(errno)); 13037c478bd9Sstevel@tonic-gate (void) s_unlink(door_file); 13047c478bd9Sstevel@tonic-gate devfsadm_exit(1); 1305537714daSvikram /*NOTREACHED*/ 13067c478bd9Sstevel@tonic-gate } 1307facf4a8dSllai 13087c478bd9Sstevel@tonic-gate if (fattach(fd, door_file) == -1) { 1309facf4a8dSllai err_print(CANT_CREATE_DOOR, door_file, strerror(errno)); 13107c478bd9Sstevel@tonic-gate (void) s_unlink(door_file); 13117c478bd9Sstevel@tonic-gate devfsadm_exit(1); 1312537714daSvikram /*NOTREACHED*/ 13137c478bd9Sstevel@tonic-gate } 13147c478bd9Sstevel@tonic-gate 1315facf4a8dSllai /* 1316facf4a8dSllai * devname_lookup_door 1317facf4a8dSllai */ 1318facf4a8dSllai if (snprintf(door_file, sizeof (door_file), "%s/%s", 1319facf4a8dSllai etc_dev_dir, DEVNAME_LOOKUP_DOOR) >= sizeof (door_file)) { 1320facf4a8dSllai err_print(CANT_CREATE_DOOR, DEVNAME_LOOKUP_DOOR, 1321facf4a8dSllai strerror(ENAMETOOLONG)); 1322facf4a8dSllai devfsadm_exit(1); 1323537714daSvikram /*NOTREACHED*/ 1324facf4a8dSllai } 13257c478bd9Sstevel@tonic-gate 13267c478bd9Sstevel@tonic-gate (void) s_unlink(door_file); 1327facf4a8dSllai if ((fd = open(door_file, O_RDWR | O_CREAT, S_IRUSR|S_IWUSR)) == -1) { 13287c478bd9Sstevel@tonic-gate err_print(CANT_CREATE_DOOR, door_file, strerror(errno)); 13297c478bd9Sstevel@tonic-gate devfsadm_exit(1); 1330537714daSvikram /*NOTREACHED*/ 13317c478bd9Sstevel@tonic-gate } 13327c478bd9Sstevel@tonic-gate (void) close(fd); 13337c478bd9Sstevel@tonic-gate 1334facf4a8dSllai if ((fd = door_create(devname_lookup_handler, NULL, 1335facf4a8dSllai DOOR_REFUSE_DESC)) == -1) { 13367c478bd9Sstevel@tonic-gate err_print(CANT_CREATE_DOOR, door_file, strerror(errno)); 13377c478bd9Sstevel@tonic-gate (void) s_unlink(door_file); 13387c478bd9Sstevel@tonic-gate devfsadm_exit(1); 1339537714daSvikram /*NOTREACHED*/ 13407c478bd9Sstevel@tonic-gate } 13417c478bd9Sstevel@tonic-gate 1342facf4a8dSllai (void) fdetach(door_file); 1343facf4a8dSllai lookup_door_path = s_strdup(door_file); 1344facf4a8dSllai retry: 13457c478bd9Sstevel@tonic-gate if (fattach(fd, door_file) == -1) { 1346facf4a8dSllai if (errno == EBUSY) 1347facf4a8dSllai goto retry; 13487c478bd9Sstevel@tonic-gate err_print(CANT_CREATE_DOOR, door_file, strerror(errno)); 13497c478bd9Sstevel@tonic-gate (void) s_unlink(door_file); 13507c478bd9Sstevel@tonic-gate devfsadm_exit(1); 1351537714daSvikram /*NOTREACHED*/ 13527c478bd9Sstevel@tonic-gate } 1353facf4a8dSllai lookup_door_fd = fd; 13547c478bd9Sstevel@tonic-gate 1355facf4a8dSllai /* pass down the door name to kernel for door_ki_open */ 1356facf4a8dSllai if (devname_kcall(MODDEVNAME_LOOKUPDOOR, (void *)door_file) != 0) 1357facf4a8dSllai err_print(DEVNAME_CONTACT_FAILED, strerror(errno)); 13587c478bd9Sstevel@tonic-gate 13597c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "%spausing\n", fcn); 13607c478bd9Sstevel@tonic-gate for (;;) { 13617c478bd9Sstevel@tonic-gate (void) pause(); 13627c478bd9Sstevel@tonic-gate } 13637c478bd9Sstevel@tonic-gate } 13647c478bd9Sstevel@tonic-gate 13657c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 13667c478bd9Sstevel@tonic-gate static void 13677c478bd9Sstevel@tonic-gate sync_handler(void *cookie, char *ap, size_t asize, 13687c478bd9Sstevel@tonic-gate door_desc_t *dp, uint_t ndesc) 13697c478bd9Sstevel@tonic-gate { 13707c478bd9Sstevel@tonic-gate door_cred_t dcred; 13717c478bd9Sstevel@tonic-gate struct dca_off *dcp, rdca; 13727c478bd9Sstevel@tonic-gate struct dca_impl dci; 13737c478bd9Sstevel@tonic-gate 13747c478bd9Sstevel@tonic-gate /* 13757c478bd9Sstevel@tonic-gate * Must be root to make this call 13767c478bd9Sstevel@tonic-gate * If caller is not root, don't touch its data. 13777c478bd9Sstevel@tonic-gate */ 13787c478bd9Sstevel@tonic-gate if (door_cred(&dcred) != 0 || dcred.dc_euid != 0) { 13797c478bd9Sstevel@tonic-gate dcp = ⤷ 13807c478bd9Sstevel@tonic-gate dcp->dca_error = EPERM; 13817c478bd9Sstevel@tonic-gate goto out; 13827c478bd9Sstevel@tonic-gate } 13837c478bd9Sstevel@tonic-gate 13847c478bd9Sstevel@tonic-gate assert(ap); 13857c478bd9Sstevel@tonic-gate assert(asize == sizeof (*dcp)); 13867c478bd9Sstevel@tonic-gate 13877c478bd9Sstevel@tonic-gate dcp = (void *)ap; 13887c478bd9Sstevel@tonic-gate 13897c478bd9Sstevel@tonic-gate /* 13907c478bd9Sstevel@tonic-gate * Root is always present and is the first component of "name" member 13917c478bd9Sstevel@tonic-gate */ 13927c478bd9Sstevel@tonic-gate assert(dcp->dca_root == 0); 13937c478bd9Sstevel@tonic-gate 13947c478bd9Sstevel@tonic-gate /* 13957c478bd9Sstevel@tonic-gate * The structure passed in by the door_client uses offsets 13967c478bd9Sstevel@tonic-gate * instead of pointers to work across address space boundaries. 13977c478bd9Sstevel@tonic-gate * Now copy the data into a structure (dca_impl) which uses 13987c478bd9Sstevel@tonic-gate * pointers. 13997c478bd9Sstevel@tonic-gate */ 14007c478bd9Sstevel@tonic-gate dci.dci_root = &dcp->dca_name[dcp->dca_root]; 14017c478bd9Sstevel@tonic-gate dci.dci_minor = dcp->dca_minor ? &dcp->dca_name[dcp->dca_minor] : NULL; 14027c478bd9Sstevel@tonic-gate dci.dci_driver = 14037c478bd9Sstevel@tonic-gate dcp->dca_driver ? &dcp->dca_name[dcp->dca_driver] : NULL; 14047c478bd9Sstevel@tonic-gate dci.dci_error = 0; 14057c478bd9Sstevel@tonic-gate dci.dci_flags = dcp->dca_flags | (dci.dci_driver ? DCA_LOAD_DRV : 0); 14067c478bd9Sstevel@tonic-gate dci.dci_arg = NULL; 14077c478bd9Sstevel@tonic-gate 14087c478bd9Sstevel@tonic-gate lock_dev(); 14097c478bd9Sstevel@tonic-gate devi_tree_walk(&dci, DINFOCPYALL, NULL); 14107c478bd9Sstevel@tonic-gate dcp->dca_error = dci.dci_error; 14117c478bd9Sstevel@tonic-gate 1412ff2aee48Scth if (dcp->dca_flags & DCA_DEVLINK_SYNC) 1413ff2aee48Scth unlock_dev(SYNC_STATE); 1414ff2aee48Scth else 1415ff2aee48Scth unlock_dev(CACHE_STATE); 14167c478bd9Sstevel@tonic-gate 1417ff2aee48Scth out: (void) door_return((char *)dcp, sizeof (*dcp), NULL, 0); 14187c478bd9Sstevel@tonic-gate } 14197c478bd9Sstevel@tonic-gate 14207c478bd9Sstevel@tonic-gate static void 14217c478bd9Sstevel@tonic-gate lock_dev(void) 14227c478bd9Sstevel@tonic-gate { 14237c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "lock_dev(): entered\n"); 14247c478bd9Sstevel@tonic-gate 14257c478bd9Sstevel@tonic-gate if (build_dev == FALSE) 14267c478bd9Sstevel@tonic-gate return; 14277c478bd9Sstevel@tonic-gate 14287c478bd9Sstevel@tonic-gate /* lockout other threads from /dev */ 14290a653502Swroche while (sema_wait(&dev_sema) != 0) 14300a653502Swroche ; 14317c478bd9Sstevel@tonic-gate 14327c478bd9Sstevel@tonic-gate /* 14337c478bd9Sstevel@tonic-gate * Lock out other devfsadm processes from /dev. 14347c478bd9Sstevel@tonic-gate * If this wasn't the last process to run, 14357c478bd9Sstevel@tonic-gate * clear caches 14367c478bd9Sstevel@tonic-gate */ 14377c478bd9Sstevel@tonic-gate if (enter_dev_lock() != getpid()) { 14387c478bd9Sstevel@tonic-gate invalidate_enumerate_cache(); 14397c478bd9Sstevel@tonic-gate rm_all_links_from_cache(); 14407c478bd9Sstevel@tonic-gate (void) di_devlink_close(&devlink_cache, DI_LINK_ERROR); 1441f05faa4eSjacobs 1442f05faa4eSjacobs /* send any sysevents that were queued up. */ 1443f05faa4eSjacobs process_syseventq(); 14447c478bd9Sstevel@tonic-gate } 14457c478bd9Sstevel@tonic-gate 14467c478bd9Sstevel@tonic-gate /* 14477c478bd9Sstevel@tonic-gate * (re)load the reverse links database if not 14487c478bd9Sstevel@tonic-gate * already cached. 14497c478bd9Sstevel@tonic-gate */ 14507c478bd9Sstevel@tonic-gate if (devlink_cache == NULL) 14517c478bd9Sstevel@tonic-gate devlink_cache = di_devlink_open(root_dir, 0); 14527c478bd9Sstevel@tonic-gate 14537c478bd9Sstevel@tonic-gate /* 14547c478bd9Sstevel@tonic-gate * If modules were unloaded, reload them. Also use module status 14557c478bd9Sstevel@tonic-gate * as an indication that we should check to see if other binding 14567c478bd9Sstevel@tonic-gate * files need to be reloaded. 14577c478bd9Sstevel@tonic-gate */ 14587c478bd9Sstevel@tonic-gate if (module_head == NULL) { 14597c478bd9Sstevel@tonic-gate load_modules(); 14607c478bd9Sstevel@tonic-gate read_minor_perm_file(); 14617c478bd9Sstevel@tonic-gate read_driver_aliases_file(); 14627c478bd9Sstevel@tonic-gate read_devlinktab_file(); 14637c478bd9Sstevel@tonic-gate read_logindevperm_file(); 14648d483882Smlf read_enumerate_file(); 14657c478bd9Sstevel@tonic-gate } 14667c478bd9Sstevel@tonic-gate 14677c478bd9Sstevel@tonic-gate if (module_head != NULL) 14687c478bd9Sstevel@tonic-gate return; 14697c478bd9Sstevel@tonic-gate 14707c478bd9Sstevel@tonic-gate if (strcmp(prog, DEVLINKS) == 0) { 14717c478bd9Sstevel@tonic-gate if (devlinktab_list == NULL) { 14727c478bd9Sstevel@tonic-gate err_print(NO_LINKTAB, devlinktab_file); 14737c478bd9Sstevel@tonic-gate err_print(NO_MODULES, module_dirs); 14747c478bd9Sstevel@tonic-gate err_print(ABORTING); 14757c478bd9Sstevel@tonic-gate devfsadm_exit(1); 1476537714daSvikram /*NOTREACHED*/ 14777c478bd9Sstevel@tonic-gate } 14787c478bd9Sstevel@tonic-gate } else { 14797c478bd9Sstevel@tonic-gate err_print(NO_MODULES, module_dirs); 14807c478bd9Sstevel@tonic-gate if (strcmp(prog, DEVFSADM) == 0) { 14817c478bd9Sstevel@tonic-gate err_print(MODIFY_PATH); 14827c478bd9Sstevel@tonic-gate } 14837c478bd9Sstevel@tonic-gate } 14847c478bd9Sstevel@tonic-gate } 14857c478bd9Sstevel@tonic-gate 1486ff2aee48Scth /* 1487ff2aee48Scth * Unlock the device. If we are processing a CACHE_STATE call, we signal a 1488ff2aee48Scth * minor_fini_thread delayed SYNC_STATE at the end of the call. If we are 1489ff2aee48Scth * processing a SYNC_STATE call, we cancel any minor_fini_thread SYNC_STATE 1490ff2aee48Scth * at both the start and end of the call since we will be doing the SYNC_STATE. 1491ff2aee48Scth */ 14927c478bd9Sstevel@tonic-gate static void 14937c478bd9Sstevel@tonic-gate unlock_dev(int flag) 14947c478bd9Sstevel@tonic-gate { 1495ff2aee48Scth assert(flag == SYNC_STATE || flag == CACHE_STATE); 1496ff2aee48Scth 14977c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "unlock_dev(): entered\n"); 14987c478bd9Sstevel@tonic-gate 1499ff2aee48Scth /* If we are starting a SYNC_STATE, cancel minor_fini_thread SYNC */ 1500ff2aee48Scth if (flag == SYNC_STATE) { 1501ff2aee48Scth (void) mutex_lock(&minor_fini_mutex); 1502ff2aee48Scth minor_fini_canceled = TRUE; 1503ff2aee48Scth minor_fini_delayed = FALSE; 1504ff2aee48Scth (void) mutex_unlock(&minor_fini_mutex); 1505ff2aee48Scth } 1506ff2aee48Scth 15077c478bd9Sstevel@tonic-gate if (build_dev == FALSE) 15087c478bd9Sstevel@tonic-gate return; 15097c478bd9Sstevel@tonic-gate 1510568e756aSvikram if (devlink_cache == NULL) { 1511568e756aSvikram err_print(NO_DEVLINK_CACHE); 1512568e756aSvikram } 15137c478bd9Sstevel@tonic-gate assert(devlink_cache); 15147c478bd9Sstevel@tonic-gate 15157c478bd9Sstevel@tonic-gate if (flag == SYNC_STATE) { 15167c478bd9Sstevel@tonic-gate unload_modules(); 15177c478bd9Sstevel@tonic-gate if (update_database) 15187c478bd9Sstevel@tonic-gate (void) di_devlink_update(devlink_cache); 15197c478bd9Sstevel@tonic-gate (void) di_devlink_close(&devlink_cache, 0); 1520f05faa4eSjacobs 1521f05faa4eSjacobs /* 1522f05faa4eSjacobs * now that the devlinks db cache has been flushed, it is safe 1523f05faa4eSjacobs * to send any sysevents that were queued up. 1524f05faa4eSjacobs */ 1525f05faa4eSjacobs process_syseventq(); 15267c478bd9Sstevel@tonic-gate } 15277c478bd9Sstevel@tonic-gate 1528537714daSvikram exit_dev_lock(0); 15297c478bd9Sstevel@tonic-gate 1530ff2aee48Scth (void) mutex_lock(&minor_fini_mutex); 1531ff2aee48Scth if (flag == SYNC_STATE) { 1532ff2aee48Scth /* We did a SYNC_STATE, cancel minor_fini_thread SYNC */ 1533ff2aee48Scth minor_fini_canceled = TRUE; 1534ff2aee48Scth minor_fini_delayed = FALSE; 1535ff2aee48Scth } else { 1536ff2aee48Scth /* We did a CACHE_STATE, start delayed minor_fini_thread SYNC */ 1537ff2aee48Scth minor_fini_canceled = FALSE; 1538ff2aee48Scth minor_fini_delayed = TRUE; 1539ff2aee48Scth (void) cond_signal(&minor_fini_cv); 1540ff2aee48Scth } 1541ff2aee48Scth (void) mutex_unlock(&minor_fini_mutex); 1542ff2aee48Scth 15437c478bd9Sstevel@tonic-gate (void) sema_post(&dev_sema); 15447c478bd9Sstevel@tonic-gate } 15457c478bd9Sstevel@tonic-gate 15467c478bd9Sstevel@tonic-gate /* 15477c478bd9Sstevel@tonic-gate * Check that if -r is set, it is not any part of a zone--- that is, that 15487c478bd9Sstevel@tonic-gate * the zonepath is not a substring of the root path. 15497c478bd9Sstevel@tonic-gate */ 15507c478bd9Sstevel@tonic-gate static int 15517c478bd9Sstevel@tonic-gate zone_pathcheck(char *checkpath) 15527c478bd9Sstevel@tonic-gate { 15537c478bd9Sstevel@tonic-gate void *dlhdl = NULL; 15547c478bd9Sstevel@tonic-gate char *name; 15557c478bd9Sstevel@tonic-gate char root[MAXPATHLEN]; /* resolved devfsadm root path */ 15567c478bd9Sstevel@tonic-gate char zroot[MAXPATHLEN]; /* zone root path */ 15577c478bd9Sstevel@tonic-gate char rzroot[MAXPATHLEN]; /* resolved zone root path */ 1558facf4a8dSllai char tmp[MAXPATHLEN]; 15597c478bd9Sstevel@tonic-gate FILE *cookie; 15607c478bd9Sstevel@tonic-gate int err = DEVFSADM_SUCCESS; 15617c478bd9Sstevel@tonic-gate 15627c478bd9Sstevel@tonic-gate if (checkpath[0] == '\0') 15637c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 15647c478bd9Sstevel@tonic-gate 15657c478bd9Sstevel@tonic-gate /* 15667c478bd9Sstevel@tonic-gate * Check if zones is available on this system. 15677c478bd9Sstevel@tonic-gate */ 15687c478bd9Sstevel@tonic-gate if ((dlhdl = dlopen(LIBZONECFG_PATH, RTLD_LAZY)) == NULL) { 15697c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 15707c478bd9Sstevel@tonic-gate } 15717c478bd9Sstevel@tonic-gate 15727c478bd9Sstevel@tonic-gate bzero(root, sizeof (root)); 15737c478bd9Sstevel@tonic-gate if (resolvepath(checkpath, root, sizeof (root) - 1) == -1) { 15747c478bd9Sstevel@tonic-gate /* 1575facf4a8dSllai * In this case the user has done "devfsadm -r" on some path 15767c478bd9Sstevel@tonic-gate * which does not yet exist, or we got some other misc. error. 15777c478bd9Sstevel@tonic-gate * We punt and don't resolve the path in this case. 15787c478bd9Sstevel@tonic-gate */ 15797c478bd9Sstevel@tonic-gate (void) strlcpy(root, checkpath, sizeof (root)); 15807c478bd9Sstevel@tonic-gate } 15817c478bd9Sstevel@tonic-gate 15827c478bd9Sstevel@tonic-gate if (strlen(root) > 0 && (root[strlen(root) - 1] != '/')) { 15837c478bd9Sstevel@tonic-gate (void) snprintf(tmp, sizeof (tmp), "%s/", root); 15847c478bd9Sstevel@tonic-gate (void) strlcpy(root, tmp, sizeof (root)); 15857c478bd9Sstevel@tonic-gate } 15867c478bd9Sstevel@tonic-gate 15877c478bd9Sstevel@tonic-gate cookie = setzoneent(); 15887c478bd9Sstevel@tonic-gate while ((name = getzoneent(cookie)) != NULL) { 15897c478bd9Sstevel@tonic-gate /* Skip the global zone */ 15907c478bd9Sstevel@tonic-gate if (strcmp(name, GLOBAL_ZONENAME) == 0) { 15917c478bd9Sstevel@tonic-gate free(name); 15927c478bd9Sstevel@tonic-gate continue; 15937c478bd9Sstevel@tonic-gate } 15947c478bd9Sstevel@tonic-gate 15957c478bd9Sstevel@tonic-gate if (zone_get_zonepath(name, zroot, sizeof (zroot)) != Z_OK) { 15967c478bd9Sstevel@tonic-gate free(name); 15977c478bd9Sstevel@tonic-gate continue; 15987c478bd9Sstevel@tonic-gate } 15997c478bd9Sstevel@tonic-gate 16007c478bd9Sstevel@tonic-gate bzero(rzroot, sizeof (rzroot)); 16017c478bd9Sstevel@tonic-gate if (resolvepath(zroot, rzroot, sizeof (rzroot) - 1) == -1) { 16027c478bd9Sstevel@tonic-gate /* 16037c478bd9Sstevel@tonic-gate * Zone path doesn't exist, or other misc error, 16047c478bd9Sstevel@tonic-gate * so we try using the non-resolved pathname. 16057c478bd9Sstevel@tonic-gate */ 16067c478bd9Sstevel@tonic-gate (void) strlcpy(rzroot, zroot, sizeof (rzroot)); 16077c478bd9Sstevel@tonic-gate } 16087c478bd9Sstevel@tonic-gate if (strlen(rzroot) > 0 && (rzroot[strlen(rzroot) - 1] != '/')) { 16097c478bd9Sstevel@tonic-gate (void) snprintf(tmp, sizeof (tmp), "%s/", rzroot); 16107c478bd9Sstevel@tonic-gate (void) strlcpy(rzroot, tmp, sizeof (rzroot)); 16117c478bd9Sstevel@tonic-gate } 16127c478bd9Sstevel@tonic-gate 16137c478bd9Sstevel@tonic-gate /* 16147c478bd9Sstevel@tonic-gate * Finally, the comparison. If the zone root path is a 16157c478bd9Sstevel@tonic-gate * leading substring of the root path, fail. 16167c478bd9Sstevel@tonic-gate */ 16177c478bd9Sstevel@tonic-gate if (strncmp(rzroot, root, strlen(rzroot)) == 0) { 16187c478bd9Sstevel@tonic-gate err_print(ZONE_PATHCHECK, root, name); 16197c478bd9Sstevel@tonic-gate err = DEVFSADM_FAILURE; 16207c478bd9Sstevel@tonic-gate free(name); 16217c478bd9Sstevel@tonic-gate break; 16227c478bd9Sstevel@tonic-gate } 16237c478bd9Sstevel@tonic-gate free(name); 16247c478bd9Sstevel@tonic-gate } 16257c478bd9Sstevel@tonic-gate endzoneent(cookie); 16267c478bd9Sstevel@tonic-gate (void) dlclose(dlhdl); 16277c478bd9Sstevel@tonic-gate return (err); 16287c478bd9Sstevel@tonic-gate } 16297c478bd9Sstevel@tonic-gate 16307c478bd9Sstevel@tonic-gate /* 16317c478bd9Sstevel@tonic-gate * Called by the daemon when it receives an event from the devfsadm SLM 16327c478bd9Sstevel@tonic-gate * to syseventd. 16337c478bd9Sstevel@tonic-gate * 16347c478bd9Sstevel@tonic-gate * The devfsadm SLM uses a private event channel for communication to 16357c478bd9Sstevel@tonic-gate * devfsadmd set-up via private libsysevent interfaces. This handler is 16367c478bd9Sstevel@tonic-gate * used to bind to the devfsadmd channel for event delivery. 16377c478bd9Sstevel@tonic-gate * The devfsadmd SLM insures single calls to this routine as well as 16387c478bd9Sstevel@tonic-gate * synchronized event delivery. 16397c478bd9Sstevel@tonic-gate * 16407c478bd9Sstevel@tonic-gate */ 16417c478bd9Sstevel@tonic-gate static void 16427c478bd9Sstevel@tonic-gate event_handler(sysevent_t *ev) 16437c478bd9Sstevel@tonic-gate { 16447c478bd9Sstevel@tonic-gate char *path; 16457c478bd9Sstevel@tonic-gate char *minor; 16467c478bd9Sstevel@tonic-gate char *subclass; 16477c478bd9Sstevel@tonic-gate char *dev_ev_subclass; 16487c478bd9Sstevel@tonic-gate char *driver_name; 16497c478bd9Sstevel@tonic-gate nvlist_t *attr_list = NULL; 16507c478bd9Sstevel@tonic-gate int err = 0; 16517c478bd9Sstevel@tonic-gate int instance; 16527c478bd9Sstevel@tonic-gate int branch_event = 0; 16537c478bd9Sstevel@tonic-gate 16547e3e5701SJan Parcel /* 16557e3e5701SJan Parcel * If this is event-driven, then we cannot trust the static devlist 16567e3e5701SJan Parcel * to be correct. 16577e3e5701SJan Parcel */ 16587e3e5701SJan Parcel 16597e3e5701SJan Parcel event_driven = TRUE; 16607c478bd9Sstevel@tonic-gate subclass = sysevent_get_subclass_name(ev); 16617c478bd9Sstevel@tonic-gate vprint(EVENT_MID, "event_handler: %s id:0X%llx\n", 16627c478bd9Sstevel@tonic-gate subclass, sysevent_get_seq(ev)); 16637c478bd9Sstevel@tonic-gate 1664facf4a8dSllai if (strcmp(subclass, ESC_DEVFS_START) == 0) { 1665facf4a8dSllai return; 1666facf4a8dSllai } 1667facf4a8dSllai 16687c478bd9Sstevel@tonic-gate /* Check if event is an instance modification */ 16697c478bd9Sstevel@tonic-gate if (strcmp(subclass, ESC_DEVFS_INSTANCE_MOD) == 0) { 16707c478bd9Sstevel@tonic-gate devfs_instance_mod(); 16717c478bd9Sstevel@tonic-gate return; 16727c478bd9Sstevel@tonic-gate } 16737c478bd9Sstevel@tonic-gate if (sysevent_get_attr_list(ev, &attr_list) != 0) { 16747c478bd9Sstevel@tonic-gate vprint(EVENT_MID, "event_handler: can not get attr list\n"); 16757c478bd9Sstevel@tonic-gate return; 16767c478bd9Sstevel@tonic-gate } 16777c478bd9Sstevel@tonic-gate 16787c478bd9Sstevel@tonic-gate if (strcmp(subclass, ESC_DEVFS_DEVI_ADD) == 0 || 16797c478bd9Sstevel@tonic-gate strcmp(subclass, ESC_DEVFS_DEVI_REMOVE) == 0 || 16807c478bd9Sstevel@tonic-gate strcmp(subclass, ESC_DEVFS_MINOR_CREATE) == 0 || 16817c478bd9Sstevel@tonic-gate strcmp(subclass, ESC_DEVFS_MINOR_REMOVE) == 0) { 16827c478bd9Sstevel@tonic-gate if ((err = nvlist_lookup_string(attr_list, DEVFS_PATHNAME, 16837c478bd9Sstevel@tonic-gate &path)) != 0) 16847c478bd9Sstevel@tonic-gate goto out; 16857c478bd9Sstevel@tonic-gate 168630294554Sphitran if (nvlist_lookup_string(attr_list, DEVFS_DEVI_CLASS, 168730294554Sphitran &dev_ev_subclass) != 0) 168830294554Sphitran dev_ev_subclass = NULL; 16897c478bd9Sstevel@tonic-gate 169030294554Sphitran if (nvlist_lookup_string(attr_list, DEVFS_DRIVER_NAME, 169130294554Sphitran &driver_name) != 0) 169230294554Sphitran driver_name = NULL; 16937c478bd9Sstevel@tonic-gate 169430294554Sphitran if (nvlist_lookup_int32(attr_list, DEVFS_INSTANCE, 169530294554Sphitran &instance) != 0) 169630294554Sphitran instance = -1; 16977c478bd9Sstevel@tonic-gate 169830294554Sphitran if (nvlist_lookup_int32(attr_list, DEVFS_BRANCH_EVENT, 169930294554Sphitran &branch_event) != 0) 170030294554Sphitran branch_event = 0; 17017c478bd9Sstevel@tonic-gate 170230294554Sphitran if (nvlist_lookup_string(attr_list, DEVFS_MINOR_NAME, 170330294554Sphitran &minor) != 0) 170430294554Sphitran minor = NULL; 17057c478bd9Sstevel@tonic-gate 17067c478bd9Sstevel@tonic-gate lock_dev(); 17077c478bd9Sstevel@tonic-gate 17087c478bd9Sstevel@tonic-gate if (strcmp(ESC_DEVFS_DEVI_ADD, subclass) == 0) { 17097c478bd9Sstevel@tonic-gate add_minor_pathname(path, NULL, dev_ev_subclass); 17107c478bd9Sstevel@tonic-gate if (branch_event) { 1711f05faa4eSjacobs build_and_enq_event(EC_DEV_BRANCH, 171230294554Sphitran ESC_DEV_BRANCH_ADD, path, DI_NODE_NIL, 171330294554Sphitran NULL); 17147c478bd9Sstevel@tonic-gate } 17157c478bd9Sstevel@tonic-gate 17167c478bd9Sstevel@tonic-gate } else if (strcmp(ESC_DEVFS_MINOR_CREATE, subclass) == 0) { 171730294554Sphitran add_minor_pathname(path, minor, dev_ev_subclass); 17187c478bd9Sstevel@tonic-gate 17197c478bd9Sstevel@tonic-gate } else if (strcmp(ESC_DEVFS_MINOR_REMOVE, subclass) == 0) { 172030294554Sphitran hot_cleanup(path, minor, dev_ev_subclass, driver_name, 172130294554Sphitran instance); 17227c478bd9Sstevel@tonic-gate 17237c478bd9Sstevel@tonic-gate } else { /* ESC_DEVFS_DEVI_REMOVE */ 17247c478bd9Sstevel@tonic-gate hot_cleanup(path, NULL, dev_ev_subclass, 17257c478bd9Sstevel@tonic-gate driver_name, instance); 17267c478bd9Sstevel@tonic-gate if (branch_event) { 1727f05faa4eSjacobs build_and_enq_event(EC_DEV_BRANCH, 172830294554Sphitran ESC_DEV_BRANCH_REMOVE, path, DI_NODE_NIL, 172930294554Sphitran NULL); 17307c478bd9Sstevel@tonic-gate } 17317c478bd9Sstevel@tonic-gate } 17327c478bd9Sstevel@tonic-gate 17337c478bd9Sstevel@tonic-gate unlock_dev(CACHE_STATE); 17347c478bd9Sstevel@tonic-gate 17357c478bd9Sstevel@tonic-gate } else if (strcmp(subclass, ESC_DEVFS_BRANCH_ADD) == 0 || 17367c478bd9Sstevel@tonic-gate strcmp(subclass, ESC_DEVFS_BRANCH_REMOVE) == 0) { 17377c478bd9Sstevel@tonic-gate if ((err = nvlist_lookup_string(attr_list, 17387c478bd9Sstevel@tonic-gate DEVFS_PATHNAME, &path)) != 0) 17397c478bd9Sstevel@tonic-gate goto out; 17407c478bd9Sstevel@tonic-gate 17417c478bd9Sstevel@tonic-gate /* just log ESC_DEV_BRANCH... event */ 17427c478bd9Sstevel@tonic-gate if (strcmp(subclass, ESC_DEVFS_BRANCH_ADD) == 0) 17437c478bd9Sstevel@tonic-gate dev_ev_subclass = ESC_DEV_BRANCH_ADD; 17447c478bd9Sstevel@tonic-gate else 17457c478bd9Sstevel@tonic-gate dev_ev_subclass = ESC_DEV_BRANCH_REMOVE; 17467c478bd9Sstevel@tonic-gate 1747d2596142Scth lock_dev(); 1748f05faa4eSjacobs build_and_enq_event(EC_DEV_BRANCH, dev_ev_subclass, path, 174930294554Sphitran DI_NODE_NIL, NULL); 1750d2596142Scth unlock_dev(CACHE_STATE); 17517c478bd9Sstevel@tonic-gate } else 17527c478bd9Sstevel@tonic-gate err_print(UNKNOWN_EVENT, subclass); 17537c478bd9Sstevel@tonic-gate 17547c478bd9Sstevel@tonic-gate out: 17557c478bd9Sstevel@tonic-gate if (err) 17567c478bd9Sstevel@tonic-gate err_print(EVENT_ATTR_LOOKUP_FAILED, strerror(err)); 17577c478bd9Sstevel@tonic-gate nvlist_free(attr_list); 17587c478bd9Sstevel@tonic-gate } 17597c478bd9Sstevel@tonic-gate 17607c478bd9Sstevel@tonic-gate static void 17617c478bd9Sstevel@tonic-gate dca_impl_init(char *root, char *minor, struct dca_impl *dcip) 17627c478bd9Sstevel@tonic-gate { 17637c478bd9Sstevel@tonic-gate assert(root); 17647c478bd9Sstevel@tonic-gate 17657c478bd9Sstevel@tonic-gate dcip->dci_root = root; 17667c478bd9Sstevel@tonic-gate dcip->dci_minor = minor; 17677c478bd9Sstevel@tonic-gate dcip->dci_driver = NULL; 17687c478bd9Sstevel@tonic-gate dcip->dci_error = 0; 17697c478bd9Sstevel@tonic-gate dcip->dci_flags = 0; 17707c478bd9Sstevel@tonic-gate dcip->dci_arg = NULL; 17717c478bd9Sstevel@tonic-gate } 17727c478bd9Sstevel@tonic-gate 17737c478bd9Sstevel@tonic-gate /* 17747c478bd9Sstevel@tonic-gate * Kernel logs a message when a devinfo node is attached. Try to create 17757c478bd9Sstevel@tonic-gate * /dev and /devices for each minor node. minorname can be NULL. 17767c478bd9Sstevel@tonic-gate */ 17777c478bd9Sstevel@tonic-gate void 17787c478bd9Sstevel@tonic-gate add_minor_pathname(char *node, char *minor, char *ev_subclass) 17797c478bd9Sstevel@tonic-gate { 17807c478bd9Sstevel@tonic-gate struct dca_impl dci; 17817c478bd9Sstevel@tonic-gate 17827c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "add_minor_pathname: node_path=%s minor=%s\n", 17837c478bd9Sstevel@tonic-gate node, minor ? minor : "NULL"); 17847c478bd9Sstevel@tonic-gate 17857c478bd9Sstevel@tonic-gate dca_impl_init(node, minor, &dci); 17867c478bd9Sstevel@tonic-gate 17877c478bd9Sstevel@tonic-gate /* 17887c478bd9Sstevel@tonic-gate * Restrict hotplug link creation if daemon 17897c478bd9Sstevel@tonic-gate * started with -i option. 17907c478bd9Sstevel@tonic-gate */ 17917c478bd9Sstevel@tonic-gate if (single_drv == TRUE) { 17927c478bd9Sstevel@tonic-gate dci.dci_driver = driver; 17937c478bd9Sstevel@tonic-gate } 17947c478bd9Sstevel@tonic-gate 17957c478bd9Sstevel@tonic-gate /* 17960dc974a9SCathy Zhou * We are being invoked in response to a hotplug event. 17977c478bd9Sstevel@tonic-gate */ 17987c478bd9Sstevel@tonic-gate dci.dci_flags = DCA_HOT_PLUG | DCA_CHECK_TYPE; 17997c478bd9Sstevel@tonic-gate 18007c478bd9Sstevel@tonic-gate devi_tree_walk(&dci, DINFOPROP|DINFOMINOR, ev_subclass); 18017c478bd9Sstevel@tonic-gate } 18027c478bd9Sstevel@tonic-gate 18037c478bd9Sstevel@tonic-gate static di_node_t 18047c478bd9Sstevel@tonic-gate find_clone_node() 18057c478bd9Sstevel@tonic-gate { 18067c478bd9Sstevel@tonic-gate static di_node_t clone_node = DI_NODE_NIL; 18077c478bd9Sstevel@tonic-gate 18087c478bd9Sstevel@tonic-gate if (clone_node == DI_NODE_NIL) 18097c478bd9Sstevel@tonic-gate clone_node = di_init("/pseudo/clone@0", DINFOPROP); 18107c478bd9Sstevel@tonic-gate return (clone_node); 18117c478bd9Sstevel@tonic-gate } 18127c478bd9Sstevel@tonic-gate 18137c478bd9Sstevel@tonic-gate static int 18147c478bd9Sstevel@tonic-gate is_descendent_of(di_node_t node, char *driver) 18157c478bd9Sstevel@tonic-gate { 18167c478bd9Sstevel@tonic-gate while (node != DI_NODE_NIL) { 18177c478bd9Sstevel@tonic-gate char *drv = di_driver_name(node); 18187c478bd9Sstevel@tonic-gate if (strcmp(drv, driver) == 0) 18197c478bd9Sstevel@tonic-gate return (1); 18207c478bd9Sstevel@tonic-gate node = di_parent_node(node); 18217c478bd9Sstevel@tonic-gate } 18227c478bd9Sstevel@tonic-gate return (0); 18237c478bd9Sstevel@tonic-gate } 18247c478bd9Sstevel@tonic-gate 18257c478bd9Sstevel@tonic-gate /* 18267c478bd9Sstevel@tonic-gate * Checks the minor type. If it is an alias node, then lookup 18277c478bd9Sstevel@tonic-gate * the real node/minor first, then call minor_process() to 18287c478bd9Sstevel@tonic-gate * do the real work. 18297c478bd9Sstevel@tonic-gate */ 18307c478bd9Sstevel@tonic-gate static int 18317c478bd9Sstevel@tonic-gate check_minor_type(di_node_t node, di_minor_t minor, void *arg) 18327c478bd9Sstevel@tonic-gate { 18337c478bd9Sstevel@tonic-gate ddi_minor_type minor_type; 18347c478bd9Sstevel@tonic-gate di_node_t clone_node; 18357c478bd9Sstevel@tonic-gate char *mn; 18367c478bd9Sstevel@tonic-gate char *nt; 18377c478bd9Sstevel@tonic-gate struct mlist *dep; 18387c478bd9Sstevel@tonic-gate struct dca_impl *dcip = arg; 18397c478bd9Sstevel@tonic-gate 18407c478bd9Sstevel@tonic-gate assert(dcip); 18417c478bd9Sstevel@tonic-gate 18427c478bd9Sstevel@tonic-gate dep = dcip->dci_arg; 18437c478bd9Sstevel@tonic-gate 18447c478bd9Sstevel@tonic-gate mn = di_minor_name(minor); 18457c478bd9Sstevel@tonic-gate 18467c478bd9Sstevel@tonic-gate /* 18477c478bd9Sstevel@tonic-gate * We match driver here instead of in minor_process 18487c478bd9Sstevel@tonic-gate * as we want the actual driver name. This check is 18497c478bd9Sstevel@tonic-gate * unnecessary during deferred processing. 18507c478bd9Sstevel@tonic-gate */ 18517c478bd9Sstevel@tonic-gate if (dep && 18527c478bd9Sstevel@tonic-gate ((dcip->dci_driver && !is_descendent_of(node, dcip->dci_driver)) || 18537c478bd9Sstevel@tonic-gate (dcip->dci_minor && strcmp(mn, dcip->dci_minor)))) { 18547c478bd9Sstevel@tonic-gate return (DI_WALK_CONTINUE); 18557c478bd9Sstevel@tonic-gate } 18567c478bd9Sstevel@tonic-gate 18577c478bd9Sstevel@tonic-gate if ((dcip->dci_flags & DCA_CHECK_TYPE) && 18587c478bd9Sstevel@tonic-gate (nt = di_minor_nodetype(minor)) && 1859210db224Sericheng (strcmp(nt, DDI_NT_NET) == 0)) { 18607c478bd9Sstevel@tonic-gate dcip->dci_flags &= ~DCA_CHECK_TYPE; 18617c478bd9Sstevel@tonic-gate } 18627c478bd9Sstevel@tonic-gate 18637c478bd9Sstevel@tonic-gate minor_type = di_minor_type(minor); 18647c478bd9Sstevel@tonic-gate 18657c478bd9Sstevel@tonic-gate if (minor_type == DDM_MINOR) { 18667c478bd9Sstevel@tonic-gate minor_process(node, minor, dep); 18677c478bd9Sstevel@tonic-gate 18687c478bd9Sstevel@tonic-gate } else if (minor_type == DDM_ALIAS) { 18697c478bd9Sstevel@tonic-gate struct mlist *cdep, clone_del = {0}; 18707c478bd9Sstevel@tonic-gate 18717c478bd9Sstevel@tonic-gate clone_node = find_clone_node(); 18727c478bd9Sstevel@tonic-gate if (clone_node == DI_NODE_NIL) { 18737c478bd9Sstevel@tonic-gate err_print(DI_INIT_FAILED, "clone", strerror(errno)); 18747c478bd9Sstevel@tonic-gate return (DI_WALK_CONTINUE); 18757c478bd9Sstevel@tonic-gate } 18767c478bd9Sstevel@tonic-gate 18777c478bd9Sstevel@tonic-gate cdep = dep ? &clone_del : NULL; 18787c478bd9Sstevel@tonic-gate 18797c478bd9Sstevel@tonic-gate minor_process(clone_node, minor, cdep); 18807c478bd9Sstevel@tonic-gate 18817c478bd9Sstevel@tonic-gate /* 18827c478bd9Sstevel@tonic-gate * cache "alias" minor node and free "clone" minor 18837c478bd9Sstevel@tonic-gate */ 18847c478bd9Sstevel@tonic-gate if (cdep != NULL && cdep->head != NULL) { 18857c478bd9Sstevel@tonic-gate assert(cdep->tail != NULL); 18867c478bd9Sstevel@tonic-gate cache_deferred_minor(dep, node, minor); 18877c478bd9Sstevel@tonic-gate dcip->dci_arg = cdep; 18887c478bd9Sstevel@tonic-gate process_deferred_links(dcip, DCA_FREE_LIST); 18897c478bd9Sstevel@tonic-gate dcip->dci_arg = dep; 18907c478bd9Sstevel@tonic-gate } 18917c478bd9Sstevel@tonic-gate } 18927c478bd9Sstevel@tonic-gate 18937c478bd9Sstevel@tonic-gate return (DI_WALK_CONTINUE); 18947c478bd9Sstevel@tonic-gate } 18957c478bd9Sstevel@tonic-gate 18967c478bd9Sstevel@tonic-gate 18977c478bd9Sstevel@tonic-gate /* 18987c478bd9Sstevel@tonic-gate * This is the entry point for each minor node, whether walking 18997c478bd9Sstevel@tonic-gate * the entire tree via di_walk_minor() or processing a hotplug event 19007c478bd9Sstevel@tonic-gate * for a single devinfo node (via hotplug ndi_devi_online()). 19017c478bd9Sstevel@tonic-gate */ 19027c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 19037c478bd9Sstevel@tonic-gate static void 19047c478bd9Sstevel@tonic-gate minor_process(di_node_t node, di_minor_t minor, struct mlist *dep) 19057c478bd9Sstevel@tonic-gate { 19067c478bd9Sstevel@tonic-gate create_list_t *create; 19077c478bd9Sstevel@tonic-gate int defer; 19087c478bd9Sstevel@tonic-gate 19097c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "minor_process: node=%s, minor=%s\n", 19100a653502Swroche di_node_name(node), di_minor_name(minor)); 19117c478bd9Sstevel@tonic-gate 19127c478bd9Sstevel@tonic-gate if (dep != NULL) { 19137c478bd9Sstevel@tonic-gate 19147c478bd9Sstevel@tonic-gate /* 19157c478bd9Sstevel@tonic-gate * Reset /devices node to minor_perm perm/ownership 19167c478bd9Sstevel@tonic-gate * if we are here to deactivate device allocation 19177c478bd9Sstevel@tonic-gate */ 19187c478bd9Sstevel@tonic-gate if (build_devices == TRUE) { 19197c478bd9Sstevel@tonic-gate reset_node_permissions(node, minor); 19207c478bd9Sstevel@tonic-gate } 19217c478bd9Sstevel@tonic-gate 19227c478bd9Sstevel@tonic-gate if (build_dev == FALSE) { 19237c478bd9Sstevel@tonic-gate return; 19247c478bd9Sstevel@tonic-gate } 19257c478bd9Sstevel@tonic-gate 19267c478bd9Sstevel@tonic-gate /* 19277c478bd9Sstevel@tonic-gate * This function will create any nodes for /etc/devlink.tab. 19287c478bd9Sstevel@tonic-gate * If devlink.tab handles link creation, we don't call any 19297c478bd9Sstevel@tonic-gate * devfsadm modules since that could cause duplicate caching 19307c478bd9Sstevel@tonic-gate * in the enumerate functions if different re strings are 19317c478bd9Sstevel@tonic-gate * passed that are logically identical. I'm still not 19327c478bd9Sstevel@tonic-gate * convinced this would cause any harm, but better to be safe. 19337c478bd9Sstevel@tonic-gate * 19347c478bd9Sstevel@tonic-gate * Deferred processing is available only for devlinks 19357c478bd9Sstevel@tonic-gate * created through devfsadm modules. 19367c478bd9Sstevel@tonic-gate */ 19377c478bd9Sstevel@tonic-gate if (process_devlink_compat(minor, node) == TRUE) { 19387c478bd9Sstevel@tonic-gate return; 19397c478bd9Sstevel@tonic-gate } 19407c478bd9Sstevel@tonic-gate } else { 19417c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "minor_process: deferred processing\n"); 19427c478bd9Sstevel@tonic-gate } 19437c478bd9Sstevel@tonic-gate 19447c478bd9Sstevel@tonic-gate /* 19457c478bd9Sstevel@tonic-gate * look for relevant link create rules in the modules, and 19467c478bd9Sstevel@tonic-gate * invoke the link create callback function to build a link 19477c478bd9Sstevel@tonic-gate * if there is a match. 19487c478bd9Sstevel@tonic-gate */ 19497c478bd9Sstevel@tonic-gate defer = 0; 19507c478bd9Sstevel@tonic-gate for (create = create_head; create != NULL; create = create->next) { 19517c478bd9Sstevel@tonic-gate if ((minor_matches_rule(node, minor, create) == TRUE) && 19527c478bd9Sstevel@tonic-gate class_ok(create->create->device_class) == 19537c478bd9Sstevel@tonic-gate DEVFSADM_SUCCESS) { 19547c478bd9Sstevel@tonic-gate if (call_minor_init(create->modptr) == 19557c478bd9Sstevel@tonic-gate DEVFSADM_FAILURE) { 19567c478bd9Sstevel@tonic-gate continue; 19577c478bd9Sstevel@tonic-gate } 19587c478bd9Sstevel@tonic-gate 19597c478bd9Sstevel@tonic-gate /* 19607c478bd9Sstevel@tonic-gate * If NOT doing the deferred creates (i.e. 1st pass) and 19617c478bd9Sstevel@tonic-gate * rule requests deferred processing cache the minor 19627c478bd9Sstevel@tonic-gate * data. 19637c478bd9Sstevel@tonic-gate * 19647c478bd9Sstevel@tonic-gate * If deferred processing (2nd pass), create links 19657c478bd9Sstevel@tonic-gate * ONLY if rule requests deferred processing. 19667c478bd9Sstevel@tonic-gate */ 19677c478bd9Sstevel@tonic-gate if (dep && ((create->create->flags & CREATE_MASK) == 19687c478bd9Sstevel@tonic-gate CREATE_DEFER)) { 19697c478bd9Sstevel@tonic-gate defer = 1; 19707c478bd9Sstevel@tonic-gate continue; 19717c478bd9Sstevel@tonic-gate } else if (dep == NULL && 19727c478bd9Sstevel@tonic-gate ((create->create->flags & CREATE_MASK) != 19737c478bd9Sstevel@tonic-gate CREATE_DEFER)) { 19747c478bd9Sstevel@tonic-gate continue; 19757c478bd9Sstevel@tonic-gate } 19767c478bd9Sstevel@tonic-gate 19777c478bd9Sstevel@tonic-gate if ((*(create->create->callback_fcn)) 19787c478bd9Sstevel@tonic-gate (minor, node) == DEVFSADM_TERMINATE) { 19797c478bd9Sstevel@tonic-gate break; 19807c478bd9Sstevel@tonic-gate } 19817c478bd9Sstevel@tonic-gate } 19827c478bd9Sstevel@tonic-gate } 19837c478bd9Sstevel@tonic-gate 19847c478bd9Sstevel@tonic-gate if (defer) 19857c478bd9Sstevel@tonic-gate cache_deferred_minor(dep, node, minor); 19867c478bd9Sstevel@tonic-gate } 19877c478bd9Sstevel@tonic-gate 19887c478bd9Sstevel@tonic-gate 19897c478bd9Sstevel@tonic-gate /* 19907c478bd9Sstevel@tonic-gate * Cache node and minor in defer list. 19917c478bd9Sstevel@tonic-gate */ 19927c478bd9Sstevel@tonic-gate static void 19937c478bd9Sstevel@tonic-gate cache_deferred_minor( 19947c478bd9Sstevel@tonic-gate struct mlist *dep, 19957c478bd9Sstevel@tonic-gate di_node_t node, 19967c478bd9Sstevel@tonic-gate di_minor_t minor) 19977c478bd9Sstevel@tonic-gate { 19987c478bd9Sstevel@tonic-gate struct minor *mp; 19997c478bd9Sstevel@tonic-gate const char *fcn = "cache_deferred_minor"; 20007c478bd9Sstevel@tonic-gate 20017c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "%s node=%s, minor=%s\n", fcn, 20027c478bd9Sstevel@tonic-gate di_node_name(node), di_minor_name(minor)); 20037c478bd9Sstevel@tonic-gate 20047c478bd9Sstevel@tonic-gate if (dep == NULL) { 20057c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "%s: cannot cache during " 20067c478bd9Sstevel@tonic-gate "deferred processing. Ignoring minor\n", fcn); 20077c478bd9Sstevel@tonic-gate return; 20087c478bd9Sstevel@tonic-gate } 20097c478bd9Sstevel@tonic-gate 20107c478bd9Sstevel@tonic-gate mp = (struct minor *)s_zalloc(sizeof (struct minor)); 20117c478bd9Sstevel@tonic-gate mp->node = node; 20127c478bd9Sstevel@tonic-gate mp->minor = minor; 20137c478bd9Sstevel@tonic-gate mp->next = NULL; 20147c478bd9Sstevel@tonic-gate 20157c478bd9Sstevel@tonic-gate assert(dep->head == NULL || dep->tail != NULL); 20167c478bd9Sstevel@tonic-gate if (dep->head == NULL) { 20177c478bd9Sstevel@tonic-gate dep->head = mp; 20187c478bd9Sstevel@tonic-gate } else { 20197c478bd9Sstevel@tonic-gate dep->tail->next = mp; 20207c478bd9Sstevel@tonic-gate } 20217c478bd9Sstevel@tonic-gate dep->tail = mp; 20227c478bd9Sstevel@tonic-gate } 20237c478bd9Sstevel@tonic-gate 20247c478bd9Sstevel@tonic-gate /* 20257c478bd9Sstevel@tonic-gate * Check to see if "create" link creation rule matches this node/minor. 20267c478bd9Sstevel@tonic-gate * If it does, return TRUE. 20277c478bd9Sstevel@tonic-gate */ 20287c478bd9Sstevel@tonic-gate static int 20297c478bd9Sstevel@tonic-gate minor_matches_rule(di_node_t node, di_minor_t minor, create_list_t *create) 20307c478bd9Sstevel@tonic-gate { 20317c478bd9Sstevel@tonic-gate char *m_nodetype, *m_drvname; 20327c478bd9Sstevel@tonic-gate 20337c478bd9Sstevel@tonic-gate if (create->create->node_type != NULL) { 20347c478bd9Sstevel@tonic-gate 20357c478bd9Sstevel@tonic-gate m_nodetype = di_minor_nodetype(minor); 20367c478bd9Sstevel@tonic-gate assert(m_nodetype != NULL); 20377c478bd9Sstevel@tonic-gate 20387c478bd9Sstevel@tonic-gate switch (create->create->flags & TYPE_MASK) { 20397c478bd9Sstevel@tonic-gate case TYPE_EXACT: 20407c478bd9Sstevel@tonic-gate if (strcmp(create->create->node_type, m_nodetype) != 20417c478bd9Sstevel@tonic-gate 0) { 20427c478bd9Sstevel@tonic-gate return (FALSE); 20437c478bd9Sstevel@tonic-gate } 20447c478bd9Sstevel@tonic-gate break; 20457c478bd9Sstevel@tonic-gate case TYPE_PARTIAL: 20467c478bd9Sstevel@tonic-gate if (strncmp(create->create->node_type, m_nodetype, 20477c478bd9Sstevel@tonic-gate strlen(create->create->node_type)) != 0) { 20487c478bd9Sstevel@tonic-gate return (FALSE); 20497c478bd9Sstevel@tonic-gate } 20507c478bd9Sstevel@tonic-gate break; 20517c478bd9Sstevel@tonic-gate case TYPE_RE: 20527c478bd9Sstevel@tonic-gate if (regexec(&(create->node_type_comp), m_nodetype, 20537c478bd9Sstevel@tonic-gate 0, NULL, 0) != 0) { 20547c478bd9Sstevel@tonic-gate return (FALSE); 20557c478bd9Sstevel@tonic-gate } 20567c478bd9Sstevel@tonic-gate break; 20577c478bd9Sstevel@tonic-gate } 20587c478bd9Sstevel@tonic-gate } 20597c478bd9Sstevel@tonic-gate 20607c478bd9Sstevel@tonic-gate if (create->create->drv_name != NULL) { 20617c478bd9Sstevel@tonic-gate m_drvname = di_driver_name(node); 20627c478bd9Sstevel@tonic-gate switch (create->create->flags & DRV_MASK) { 20637c478bd9Sstevel@tonic-gate case DRV_EXACT: 20647c478bd9Sstevel@tonic-gate if (strcmp(create->create->drv_name, m_drvname) != 0) { 20657c478bd9Sstevel@tonic-gate return (FALSE); 20667c478bd9Sstevel@tonic-gate } 20677c478bd9Sstevel@tonic-gate break; 20687c478bd9Sstevel@tonic-gate case DRV_RE: 20697c478bd9Sstevel@tonic-gate if (regexec(&(create->drv_name_comp), m_drvname, 20707c478bd9Sstevel@tonic-gate 0, NULL, 0) != 0) { 20717c478bd9Sstevel@tonic-gate return (FALSE); 20727c478bd9Sstevel@tonic-gate } 20737c478bd9Sstevel@tonic-gate break; 20747c478bd9Sstevel@tonic-gate } 20757c478bd9Sstevel@tonic-gate } 20767c478bd9Sstevel@tonic-gate 20777c478bd9Sstevel@tonic-gate return (TRUE); 20787c478bd9Sstevel@tonic-gate } 20797c478bd9Sstevel@tonic-gate 20807c478bd9Sstevel@tonic-gate /* 20817c478bd9Sstevel@tonic-gate * If no classes were given on the command line, then return DEVFSADM_SUCCESS. 20827c478bd9Sstevel@tonic-gate * Otherwise, return DEVFSADM_SUCCESS if the device "class" from the module 20837c478bd9Sstevel@tonic-gate * matches one of the device classes given on the command line, 20847c478bd9Sstevel@tonic-gate * otherwise, return DEVFSADM_FAILURE. 20857c478bd9Sstevel@tonic-gate */ 20867c478bd9Sstevel@tonic-gate static int 20877c478bd9Sstevel@tonic-gate class_ok(char *class) 20887c478bd9Sstevel@tonic-gate { 20897c478bd9Sstevel@tonic-gate int i; 20907c478bd9Sstevel@tonic-gate 20917c478bd9Sstevel@tonic-gate if (num_classes == 0) { 20927c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 20937c478bd9Sstevel@tonic-gate } 20947c478bd9Sstevel@tonic-gate 20957c478bd9Sstevel@tonic-gate for (i = 0; i < num_classes; i++) { 20967c478bd9Sstevel@tonic-gate if (strcmp(class, classes[i]) == 0) { 20977c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 20987c478bd9Sstevel@tonic-gate } 20997c478bd9Sstevel@tonic-gate } 21007c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 21017c478bd9Sstevel@tonic-gate } 21027c478bd9Sstevel@tonic-gate 21037c478bd9Sstevel@tonic-gate /* 21047c478bd9Sstevel@tonic-gate * call minor_fini on active modules, then unload ALL modules 21057c478bd9Sstevel@tonic-gate */ 21067c478bd9Sstevel@tonic-gate static void 21077c478bd9Sstevel@tonic-gate unload_modules(void) 21087c478bd9Sstevel@tonic-gate { 21097c478bd9Sstevel@tonic-gate module_t *module_free; 21107c478bd9Sstevel@tonic-gate create_list_t *create_free; 21117c478bd9Sstevel@tonic-gate remove_list_t *remove_free; 21127c478bd9Sstevel@tonic-gate 21137c478bd9Sstevel@tonic-gate while (create_head != NULL) { 21147c478bd9Sstevel@tonic-gate create_free = create_head; 21157c478bd9Sstevel@tonic-gate create_head = create_head->next; 21167c478bd9Sstevel@tonic-gate 21177c478bd9Sstevel@tonic-gate if ((create_free->create->flags & TYPE_RE) == TYPE_RE) { 21187c478bd9Sstevel@tonic-gate regfree(&(create_free->node_type_comp)); 21197c478bd9Sstevel@tonic-gate } 21207c478bd9Sstevel@tonic-gate if ((create_free->create->flags & DRV_RE) == DRV_RE) { 21217c478bd9Sstevel@tonic-gate regfree(&(create_free->drv_name_comp)); 21227c478bd9Sstevel@tonic-gate } 21237c478bd9Sstevel@tonic-gate free(create_free); 21247c478bd9Sstevel@tonic-gate } 21257c478bd9Sstevel@tonic-gate 21267c478bd9Sstevel@tonic-gate while (remove_head != NULL) { 21277c478bd9Sstevel@tonic-gate remove_free = remove_head; 21287c478bd9Sstevel@tonic-gate remove_head = remove_head->next; 21297c478bd9Sstevel@tonic-gate free(remove_free); 21307c478bd9Sstevel@tonic-gate } 21317c478bd9Sstevel@tonic-gate 21327c478bd9Sstevel@tonic-gate while (module_head != NULL) { 21337c478bd9Sstevel@tonic-gate 21347c478bd9Sstevel@tonic-gate if ((module_head->minor_fini != NULL) && 21357c478bd9Sstevel@tonic-gate ((module_head->flags & MODULE_ACTIVE) == MODULE_ACTIVE)) { 21367c478bd9Sstevel@tonic-gate (void) (*(module_head->minor_fini))(); 21377c478bd9Sstevel@tonic-gate } 21387c478bd9Sstevel@tonic-gate 21397c478bd9Sstevel@tonic-gate vprint(MODLOAD_MID, "unloading module %s\n", module_head->name); 21407c478bd9Sstevel@tonic-gate free(module_head->name); 21417c478bd9Sstevel@tonic-gate (void) dlclose(module_head->dlhandle); 21427c478bd9Sstevel@tonic-gate 21437c478bd9Sstevel@tonic-gate module_free = module_head; 21447c478bd9Sstevel@tonic-gate module_head = module_head->next; 21457c478bd9Sstevel@tonic-gate free(module_free); 21467c478bd9Sstevel@tonic-gate } 21477c478bd9Sstevel@tonic-gate } 21487c478bd9Sstevel@tonic-gate 21497c478bd9Sstevel@tonic-gate /* 21507c478bd9Sstevel@tonic-gate * Load devfsadm logical link processing modules. 21517c478bd9Sstevel@tonic-gate */ 21527c478bd9Sstevel@tonic-gate static void 21537c478bd9Sstevel@tonic-gate load_modules(void) 21547c478bd9Sstevel@tonic-gate { 21557c478bd9Sstevel@tonic-gate DIR *mod_dir; 21564bc0a2efScasper struct dirent *entp; 21577c478bd9Sstevel@tonic-gate char cdir[PATH_MAX + 1]; 21587c478bd9Sstevel@tonic-gate char *last; 21597c478bd9Sstevel@tonic-gate char *mdir = module_dirs; 21607c478bd9Sstevel@tonic-gate char *fcn = "load_modules: "; 21617c478bd9Sstevel@tonic-gate 21627c478bd9Sstevel@tonic-gate while (*mdir != '\0') { 21637c478bd9Sstevel@tonic-gate 21647c478bd9Sstevel@tonic-gate while (*mdir == ':') { 21657c478bd9Sstevel@tonic-gate mdir++; 21667c478bd9Sstevel@tonic-gate } 21677c478bd9Sstevel@tonic-gate 21687c478bd9Sstevel@tonic-gate if (*mdir == '\0') { 21697c478bd9Sstevel@tonic-gate continue; 21707c478bd9Sstevel@tonic-gate } 21717c478bd9Sstevel@tonic-gate 21727c478bd9Sstevel@tonic-gate last = strchr(mdir, ':'); 21737c478bd9Sstevel@tonic-gate 21747c478bd9Sstevel@tonic-gate if (last == NULL) { 21757c478bd9Sstevel@tonic-gate last = mdir + strlen(mdir); 21767c478bd9Sstevel@tonic-gate } 21777c478bd9Sstevel@tonic-gate 21787c478bd9Sstevel@tonic-gate (void) strncpy(cdir, mdir, last - mdir); 21797c478bd9Sstevel@tonic-gate cdir[last - mdir] = '\0'; 21807c478bd9Sstevel@tonic-gate mdir += strlen(cdir); 21817c478bd9Sstevel@tonic-gate 21827c478bd9Sstevel@tonic-gate if ((mod_dir = opendir(cdir)) == NULL) { 21837c478bd9Sstevel@tonic-gate vprint(MODLOAD_MID, "%sopendir(%s): %s\n", 21840a653502Swroche fcn, cdir, strerror(errno)); 21857c478bd9Sstevel@tonic-gate continue; 21867c478bd9Sstevel@tonic-gate } 21877c478bd9Sstevel@tonic-gate 21884bc0a2efScasper while ((entp = readdir(mod_dir)) != NULL) { 21897c478bd9Sstevel@tonic-gate 21907c478bd9Sstevel@tonic-gate if ((strcmp(entp->d_name, ".") == 0) || 21917c478bd9Sstevel@tonic-gate (strcmp(entp->d_name, "..") == 0)) { 21927c478bd9Sstevel@tonic-gate continue; 21937c478bd9Sstevel@tonic-gate } 21947c478bd9Sstevel@tonic-gate 21957c478bd9Sstevel@tonic-gate load_module(entp->d_name, cdir); 21967c478bd9Sstevel@tonic-gate } 21977c478bd9Sstevel@tonic-gate s_closedir(mod_dir); 21987c478bd9Sstevel@tonic-gate } 21997c478bd9Sstevel@tonic-gate } 22007c478bd9Sstevel@tonic-gate 22017c478bd9Sstevel@tonic-gate static void 22027c478bd9Sstevel@tonic-gate load_module(char *mname, char *cdir) 22037c478bd9Sstevel@tonic-gate { 22047c478bd9Sstevel@tonic-gate _devfsadm_create_reg_t *create_reg; 2205aa646b9dSvikram _devfsadm_remove_reg_V1_t *remove_reg; 22067c478bd9Sstevel@tonic-gate create_list_t *create_list_element; 22077c478bd9Sstevel@tonic-gate create_list_t **create_list_next; 22087c478bd9Sstevel@tonic-gate remove_list_t *remove_list_element; 22097c478bd9Sstevel@tonic-gate remove_list_t **remove_list_next; 22107c478bd9Sstevel@tonic-gate char epath[PATH_MAX + 1], *end; 22117c478bd9Sstevel@tonic-gate char *fcn = "load_module: "; 22127c478bd9Sstevel@tonic-gate char *dlerrstr; 22137c478bd9Sstevel@tonic-gate void *dlhandle; 22147c478bd9Sstevel@tonic-gate module_t *module; 2215aa646b9dSvikram int flags; 22167c478bd9Sstevel@tonic-gate int n; 22177c478bd9Sstevel@tonic-gate int i; 22187c478bd9Sstevel@tonic-gate 22197c478bd9Sstevel@tonic-gate /* ignore any file which does not end in '.so' */ 22207c478bd9Sstevel@tonic-gate if ((end = strstr(mname, MODULE_SUFFIX)) != NULL) { 22217c478bd9Sstevel@tonic-gate if (end[strlen(MODULE_SUFFIX)] != '\0') { 22227c478bd9Sstevel@tonic-gate return; 22237c478bd9Sstevel@tonic-gate } 22247c478bd9Sstevel@tonic-gate } else { 22257c478bd9Sstevel@tonic-gate return; 22267c478bd9Sstevel@tonic-gate } 22277c478bd9Sstevel@tonic-gate 22287c478bd9Sstevel@tonic-gate (void) snprintf(epath, sizeof (epath), "%s/%s", cdir, mname); 22297c478bd9Sstevel@tonic-gate 22307c478bd9Sstevel@tonic-gate if ((dlhandle = dlopen(epath, RTLD_LAZY)) == NULL) { 22317c478bd9Sstevel@tonic-gate dlerrstr = dlerror(); 22327c478bd9Sstevel@tonic-gate err_print(DLOPEN_FAILED, epath, 22330a653502Swroche dlerrstr ? dlerrstr : "unknown error"); 22347c478bd9Sstevel@tonic-gate return; 22357c478bd9Sstevel@tonic-gate } 22367c478bd9Sstevel@tonic-gate 22377c478bd9Sstevel@tonic-gate /* dlsym the _devfsadm_create_reg structure */ 22387c478bd9Sstevel@tonic-gate if (NULL == (create_reg = (_devfsadm_create_reg_t *) 22390a653502Swroche dlsym(dlhandle, _DEVFSADM_CREATE_REG))) { 22407c478bd9Sstevel@tonic-gate vprint(MODLOAD_MID, "dlsym(%s, %s): symbol not found\n", epath, 22410a653502Swroche _DEVFSADM_CREATE_REG); 22427c478bd9Sstevel@tonic-gate } else { 22437c478bd9Sstevel@tonic-gate vprint(MODLOAD_MID, "%sdlsym(%s, %s) succeeded\n", 22440a653502Swroche fcn, epath, _DEVFSADM_CREATE_REG); 22457c478bd9Sstevel@tonic-gate } 22467c478bd9Sstevel@tonic-gate 22477c478bd9Sstevel@tonic-gate /* dlsym the _devfsadm_remove_reg structure */ 2248aa646b9dSvikram if (NULL == (remove_reg = (_devfsadm_remove_reg_V1_t *) 22497c478bd9Sstevel@tonic-gate dlsym(dlhandle, _DEVFSADM_REMOVE_REG))) { 22507c478bd9Sstevel@tonic-gate vprint(MODLOAD_MID, "dlsym(%s,\n\t%s): symbol not found\n", 22510a653502Swroche epath, _DEVFSADM_REMOVE_REG); 22527c478bd9Sstevel@tonic-gate } else { 22537c478bd9Sstevel@tonic-gate vprint(MODLOAD_MID, "dlsym(%s, %s): succeeded\n", 22540a653502Swroche epath, _DEVFSADM_REMOVE_REG); 22557c478bd9Sstevel@tonic-gate } 22567c478bd9Sstevel@tonic-gate 22577c478bd9Sstevel@tonic-gate vprint(MODLOAD_MID, "module %s loaded\n", epath); 22587c478bd9Sstevel@tonic-gate 22597c478bd9Sstevel@tonic-gate module = (module_t *)s_malloc(sizeof (module_t)); 22607c478bd9Sstevel@tonic-gate module->name = s_strdup(epath); 22617c478bd9Sstevel@tonic-gate module->dlhandle = dlhandle; 22627c478bd9Sstevel@tonic-gate 22637c478bd9Sstevel@tonic-gate /* dlsym other module functions, to be called later */ 22647c478bd9Sstevel@tonic-gate module->minor_fini = (int (*)())dlsym(dlhandle, MINOR_FINI); 22657c478bd9Sstevel@tonic-gate module->minor_init = (int (*)())dlsym(dlhandle, MINOR_INIT); 22667c478bd9Sstevel@tonic-gate module->flags = 0; 22677c478bd9Sstevel@tonic-gate 22687c478bd9Sstevel@tonic-gate /* 22697c478bd9Sstevel@tonic-gate * put a ptr to each struct devfsadm_create on "create_head" 22707c478bd9Sstevel@tonic-gate * list sorted in interpose_lvl. 22717c478bd9Sstevel@tonic-gate */ 22727c478bd9Sstevel@tonic-gate if (create_reg != NULL) { 22737c478bd9Sstevel@tonic-gate for (i = 0; i < create_reg->count; i++) { 22747c478bd9Sstevel@tonic-gate int flags = create_reg->tblp[i].flags; 22757c478bd9Sstevel@tonic-gate 22767c478bd9Sstevel@tonic-gate create_list_element = (create_list_t *) 22770a653502Swroche s_malloc(sizeof (create_list_t)); 22787c478bd9Sstevel@tonic-gate 22797c478bd9Sstevel@tonic-gate create_list_element->create = &(create_reg->tblp[i]); 22807c478bd9Sstevel@tonic-gate create_list_element->modptr = module; 22817c478bd9Sstevel@tonic-gate 22827c478bd9Sstevel@tonic-gate if (((flags & CREATE_MASK) != 0) && 22837c478bd9Sstevel@tonic-gate ((flags & CREATE_MASK) != CREATE_DEFER)) { 22847c478bd9Sstevel@tonic-gate free(create_list_element); 22857c478bd9Sstevel@tonic-gate err_print("illegal flag combination in " 22860a653502Swroche "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 (create_reg->tblp[i].node_type == NULL)) { 22937c478bd9Sstevel@tonic-gate free(create_list_element); 22947c478bd9Sstevel@tonic-gate err_print("flags value incompatible with " 22950a653502Swroche "node_type value in module create\n"); 22967c478bd9Sstevel@tonic-gate err_print(IGNORING_ENTRY, i, epath); 22977c478bd9Sstevel@tonic-gate continue; 22987c478bd9Sstevel@tonic-gate } 22997c478bd9Sstevel@tonic-gate 23007c478bd9Sstevel@tonic-gate if (((flags & TYPE_MASK) != 0) && 23017c478bd9Sstevel@tonic-gate ((flags & TYPE_MASK) != TYPE_EXACT) && 23027c478bd9Sstevel@tonic-gate ((flags & TYPE_MASK) != TYPE_RE) && 23037c478bd9Sstevel@tonic-gate ((flags & TYPE_MASK) != TYPE_PARTIAL)) { 23047c478bd9Sstevel@tonic-gate free(create_list_element); 23057c478bd9Sstevel@tonic-gate err_print("illegal TYPE_* flag combination in " 23060a653502Swroche "module create\n"); 23077c478bd9Sstevel@tonic-gate err_print(IGNORING_ENTRY, i, epath); 23087c478bd9Sstevel@tonic-gate continue; 23097c478bd9Sstevel@tonic-gate } 23107c478bd9Sstevel@tonic-gate 23117c478bd9Sstevel@tonic-gate /* precompile regular expression for efficiency */ 23127c478bd9Sstevel@tonic-gate if ((flags & TYPE_RE) == TYPE_RE) { 23137c478bd9Sstevel@tonic-gate if ((n = regcomp(&(create_list_element-> 23147c478bd9Sstevel@tonic-gate node_type_comp), 23157c478bd9Sstevel@tonic-gate create_reg->tblp[i].node_type, 23167c478bd9Sstevel@tonic-gate REG_EXTENDED)) != 0) { 23177c478bd9Sstevel@tonic-gate free(create_list_element); 23187c478bd9Sstevel@tonic-gate err_print(REGCOMP_FAILED, 23190a653502Swroche create_reg->tblp[i].node_type, n); 23207c478bd9Sstevel@tonic-gate err_print(IGNORING_ENTRY, i, epath); 23217c478bd9Sstevel@tonic-gate continue; 23227c478bd9Sstevel@tonic-gate } 23237c478bd9Sstevel@tonic-gate } 23247c478bd9Sstevel@tonic-gate 23257c478bd9Sstevel@tonic-gate if (((flags & DRV_MASK) == 0) ^ 23267c478bd9Sstevel@tonic-gate (create_reg->tblp[i].drv_name == NULL)) { 23277c478bd9Sstevel@tonic-gate if ((flags & TYPE_RE) == TYPE_RE) { 23287c478bd9Sstevel@tonic-gate regfree(&(create_list_element-> 23297c478bd9Sstevel@tonic-gate node_type_comp)); 23307c478bd9Sstevel@tonic-gate } 23317c478bd9Sstevel@tonic-gate free(create_list_element); 23327c478bd9Sstevel@tonic-gate err_print("flags value incompatible with " 23330a653502Swroche "drv_name value in module create\n"); 23347c478bd9Sstevel@tonic-gate err_print(IGNORING_ENTRY, i, epath); 23357c478bd9Sstevel@tonic-gate continue; 23367c478bd9Sstevel@tonic-gate } 23377c478bd9Sstevel@tonic-gate 23387c478bd9Sstevel@tonic-gate if (((flags & DRV_MASK) != 0) && 23397c478bd9Sstevel@tonic-gate ((flags & DRV_MASK) != DRV_EXACT) && 23407c478bd9Sstevel@tonic-gate ((flags & DRV_MASK) != DRV_RE)) { 23417c478bd9Sstevel@tonic-gate if ((flags & TYPE_RE) == TYPE_RE) { 23427c478bd9Sstevel@tonic-gate regfree(&(create_list_element-> 23437c478bd9Sstevel@tonic-gate node_type_comp)); 23447c478bd9Sstevel@tonic-gate } 23457c478bd9Sstevel@tonic-gate free(create_list_element); 23467c478bd9Sstevel@tonic-gate err_print("illegal DRV_* flag combination in " 23470a653502Swroche "module create\n"); 23487c478bd9Sstevel@tonic-gate err_print(IGNORING_ENTRY, i, epath); 23497c478bd9Sstevel@tonic-gate continue; 23507c478bd9Sstevel@tonic-gate } 23517c478bd9Sstevel@tonic-gate 23527c478bd9Sstevel@tonic-gate /* precompile regular expression for efficiency */ 23537c478bd9Sstevel@tonic-gate if ((create_reg->tblp[i].flags & DRV_RE) == DRV_RE) { 23547c478bd9Sstevel@tonic-gate if ((n = regcomp(&(create_list_element-> 23557c478bd9Sstevel@tonic-gate drv_name_comp), 23567c478bd9Sstevel@tonic-gate create_reg->tblp[i].drv_name, 23577c478bd9Sstevel@tonic-gate REG_EXTENDED)) != 0) { 23587c478bd9Sstevel@tonic-gate if ((flags & TYPE_RE) == TYPE_RE) { 23597c478bd9Sstevel@tonic-gate regfree(&(create_list_element-> 23607c478bd9Sstevel@tonic-gate node_type_comp)); 23617c478bd9Sstevel@tonic-gate } 23627c478bd9Sstevel@tonic-gate free(create_list_element); 23637c478bd9Sstevel@tonic-gate err_print(REGCOMP_FAILED, 23640a653502Swroche create_reg->tblp[i].drv_name, n); 23657c478bd9Sstevel@tonic-gate err_print(IGNORING_ENTRY, i, epath); 23667c478bd9Sstevel@tonic-gate continue; 23677c478bd9Sstevel@tonic-gate } 23687c478bd9Sstevel@tonic-gate } 23697c478bd9Sstevel@tonic-gate 23707c478bd9Sstevel@tonic-gate 23717c478bd9Sstevel@tonic-gate /* add to list sorted by interpose level */ 23727c478bd9Sstevel@tonic-gate for (create_list_next = &(create_head); 23730a653502Swroche (*create_list_next != NULL) && 23740a653502Swroche (*create_list_next)->create->interpose_lvl >= 23750a653502Swroche create_list_element->create->interpose_lvl; 23760a653502Swroche create_list_next = &((*create_list_next)->next)) 23770a653502Swroche ; 23787c478bd9Sstevel@tonic-gate create_list_element->next = *create_list_next; 23797c478bd9Sstevel@tonic-gate *create_list_next = create_list_element; 23807c478bd9Sstevel@tonic-gate } 23817c478bd9Sstevel@tonic-gate } 23827c478bd9Sstevel@tonic-gate 23837c478bd9Sstevel@tonic-gate /* 23847c478bd9Sstevel@tonic-gate * put a ptr to each struct devfsadm_remove on "remove_head" 23857c478bd9Sstevel@tonic-gate * list sorted by interpose_lvl. 23867c478bd9Sstevel@tonic-gate */ 2387aa646b9dSvikram flags = 0; 23887c478bd9Sstevel@tonic-gate if (remove_reg != NULL) { 2389aa646b9dSvikram if (remove_reg->version < DEVFSADM_V1) 2390aa646b9dSvikram flags |= RM_NOINTERPOSE; 23917c478bd9Sstevel@tonic-gate for (i = 0; i < remove_reg->count; i++) { 23927c478bd9Sstevel@tonic-gate 23937c478bd9Sstevel@tonic-gate remove_list_element = (remove_list_t *) 23940a653502Swroche s_malloc(sizeof (remove_list_t)); 23957c478bd9Sstevel@tonic-gate 23967c478bd9Sstevel@tonic-gate remove_list_element->remove = &(remove_reg->tblp[i]); 2397aa646b9dSvikram remove_list_element->remove->flags |= flags; 23987c478bd9Sstevel@tonic-gate remove_list_element->modptr = module; 23997c478bd9Sstevel@tonic-gate 24007c478bd9Sstevel@tonic-gate for (remove_list_next = &(remove_head); 24010a653502Swroche (*remove_list_next != NULL) && 24020a653502Swroche (*remove_list_next)->remove->interpose_lvl >= 24030a653502Swroche remove_list_element->remove->interpose_lvl; 24040a653502Swroche remove_list_next = &((*remove_list_next)->next)) 24050a653502Swroche ; 24067c478bd9Sstevel@tonic-gate remove_list_element->next = *remove_list_next; 24077c478bd9Sstevel@tonic-gate *remove_list_next = remove_list_element; 24087c478bd9Sstevel@tonic-gate } 24097c478bd9Sstevel@tonic-gate } 24107c478bd9Sstevel@tonic-gate 24117c478bd9Sstevel@tonic-gate module->next = module_head; 24127c478bd9Sstevel@tonic-gate module_head = module; 24137c478bd9Sstevel@tonic-gate } 24147c478bd9Sstevel@tonic-gate 24157c478bd9Sstevel@tonic-gate /* 2416ff2aee48Scth * After we have completed a CACHE_STATE, if a SYNC_STATE does not occur 2417ff2aee48Scth * within 'timeout' secs the minor_fini_thread needs to do a SYNC_STATE 2418ff2aee48Scth * so that we still call the minor_fini routines. 24197c478bd9Sstevel@tonic-gate */ 24207c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 24217c478bd9Sstevel@tonic-gate static void 2422ff2aee48Scth minor_fini_thread(void *arg) 24237c478bd9Sstevel@tonic-gate { 2424ff2aee48Scth timestruc_t abstime; 24257c478bd9Sstevel@tonic-gate 2426ff2aee48Scth vprint(INITFINI_MID, "minor_fini_thread starting\n"); 24277c478bd9Sstevel@tonic-gate 2428ff2aee48Scth (void) mutex_lock(&minor_fini_mutex); 2429ff2aee48Scth for (;;) { 2430ff2aee48Scth /* wait the gather period, or until signaled */ 2431ff2aee48Scth abstime.tv_sec = time(NULL) + minor_fini_timeout; 2432ff2aee48Scth abstime.tv_nsec = 0; 2433ff2aee48Scth (void) cond_timedwait(&minor_fini_cv, 2434ff2aee48Scth &minor_fini_mutex, &abstime); 2435ff2aee48Scth 2436ff2aee48Scth /* if minor_fini was canceled, go wait again */ 2437ff2aee48Scth if (minor_fini_canceled == TRUE) 2438ff2aee48Scth continue; 24397c478bd9Sstevel@tonic-gate 2440ff2aee48Scth /* if minor_fini was delayed, go wait again */ 2441ff2aee48Scth if (minor_fini_delayed == TRUE) { 2442ff2aee48Scth minor_fini_delayed = FALSE; 2443ff2aee48Scth continue; 2444ff2aee48Scth } 24457c478bd9Sstevel@tonic-gate 2446ff2aee48Scth /* done with cancellations and delays, do the SYNC_STATE */ 24477c478bd9Sstevel@tonic-gate (void) mutex_unlock(&minor_fini_mutex); 24487c478bd9Sstevel@tonic-gate 2449ff2aee48Scth lock_dev(); 2450ff2aee48Scth unlock_dev(SYNC_STATE); 2451ff2aee48Scth vprint(INITFINI_MID, "minor_fini sync done\n"); 24527c478bd9Sstevel@tonic-gate 2453ff2aee48Scth (void) mutex_lock(&minor_fini_mutex); 2454ff2aee48Scth } 24557c478bd9Sstevel@tonic-gate } 24567c478bd9Sstevel@tonic-gate 2457ff2aee48Scth 24587c478bd9Sstevel@tonic-gate /* 24597c478bd9Sstevel@tonic-gate * Attempt to initialize module, if a minor_init routine exists. Set 24607c478bd9Sstevel@tonic-gate * the active flag if the routine exists and succeeds. If it doesn't 24617c478bd9Sstevel@tonic-gate * exist, just set the active flag. 24627c478bd9Sstevel@tonic-gate */ 24637c478bd9Sstevel@tonic-gate static int 24647c478bd9Sstevel@tonic-gate call_minor_init(module_t *module) 24657c478bd9Sstevel@tonic-gate { 24667c478bd9Sstevel@tonic-gate char *fcn = "call_minor_init: "; 24677c478bd9Sstevel@tonic-gate 24687c478bd9Sstevel@tonic-gate if ((module->flags & MODULE_ACTIVE) == MODULE_ACTIVE) { 24697c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 24707c478bd9Sstevel@tonic-gate } 24717c478bd9Sstevel@tonic-gate 24727c478bd9Sstevel@tonic-gate vprint(INITFINI_MID, "%smodule %s. current state: inactive\n", 24730a653502Swroche fcn, module->name); 24747c478bd9Sstevel@tonic-gate 24757c478bd9Sstevel@tonic-gate if (module->minor_init == NULL) { 24767c478bd9Sstevel@tonic-gate module->flags |= MODULE_ACTIVE; 24777c478bd9Sstevel@tonic-gate vprint(INITFINI_MID, "minor_init not defined\n"); 24787c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 24797c478bd9Sstevel@tonic-gate } 24807c478bd9Sstevel@tonic-gate 24817c478bd9Sstevel@tonic-gate if ((*(module->minor_init))() == DEVFSADM_FAILURE) { 24827c478bd9Sstevel@tonic-gate err_print(FAILED_FOR_MODULE, MINOR_INIT, module->name); 24837c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 24847c478bd9Sstevel@tonic-gate } 24857c478bd9Sstevel@tonic-gate 24867c478bd9Sstevel@tonic-gate vprint(INITFINI_MID, "minor_init() returns DEVFSADM_SUCCESS. " 24870a653502Swroche "new state: active\n"); 24887c478bd9Sstevel@tonic-gate 24897c478bd9Sstevel@tonic-gate module->flags |= MODULE_ACTIVE; 24907c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 24917c478bd9Sstevel@tonic-gate } 24927c478bd9Sstevel@tonic-gate 24937c478bd9Sstevel@tonic-gate /* 24947c478bd9Sstevel@tonic-gate * Creates a symlink 'link' to the physical path of node:minor. 24957c478bd9Sstevel@tonic-gate * Construct link contents, then call create_link_common(). 24967c478bd9Sstevel@tonic-gate */ 24977c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 24987c478bd9Sstevel@tonic-gate int 2499facf4a8dSllai devfsadm_mklink(char *link, di_node_t node, di_minor_t minor, int flags) 25007c478bd9Sstevel@tonic-gate { 25017c478bd9Sstevel@tonic-gate char rcontents[PATH_MAX]; 25027c478bd9Sstevel@tonic-gate char devlink[PATH_MAX]; 25037c478bd9Sstevel@tonic-gate char phy_path[PATH_MAX]; 25047c478bd9Sstevel@tonic-gate char *acontents; 25057c478bd9Sstevel@tonic-gate char *dev_path; 25067c478bd9Sstevel@tonic-gate int numslashes; 25077c478bd9Sstevel@tonic-gate int rv; 25087c478bd9Sstevel@tonic-gate int i, link_exists; 25097c478bd9Sstevel@tonic-gate int last_was_slash = FALSE; 25107c478bd9Sstevel@tonic-gate 25117c478bd9Sstevel@tonic-gate /* 25127c478bd9Sstevel@tonic-gate * try to use devices path 25137c478bd9Sstevel@tonic-gate */ 25147c478bd9Sstevel@tonic-gate if ((node == lnode) && (minor == lminor)) { 25157c478bd9Sstevel@tonic-gate acontents = lphy_path; 25167c478bd9Sstevel@tonic-gate } else if (di_minor_type(minor) == DDM_ALIAS) { 25177c478bd9Sstevel@tonic-gate /* use /pseudo/clone@0:<driver> as the phys path */ 25187c478bd9Sstevel@tonic-gate (void) snprintf(phy_path, sizeof (phy_path), 25197c478bd9Sstevel@tonic-gate "/pseudo/clone@0:%s", 25207c478bd9Sstevel@tonic-gate di_driver_name(di_minor_devinfo(minor))); 25217c478bd9Sstevel@tonic-gate acontents = phy_path; 25227c478bd9Sstevel@tonic-gate } else { 25237c478bd9Sstevel@tonic-gate if ((dev_path = di_devfs_path(node)) == NULL) { 25247c478bd9Sstevel@tonic-gate err_print(DI_DEVFS_PATH_FAILED, strerror(errno)); 25257c478bd9Sstevel@tonic-gate devfsadm_exit(1); 2526537714daSvikram /*NOTREACHED*/ 25277c478bd9Sstevel@tonic-gate } 25287c478bd9Sstevel@tonic-gate (void) snprintf(phy_path, sizeof (phy_path), "%s:%s", 25297c478bd9Sstevel@tonic-gate dev_path, di_minor_name(minor)); 25307c478bd9Sstevel@tonic-gate di_devfs_path_free(dev_path); 25317c478bd9Sstevel@tonic-gate acontents = phy_path; 25327c478bd9Sstevel@tonic-gate } 25337c478bd9Sstevel@tonic-gate 25347c478bd9Sstevel@tonic-gate /* prepend link with dev_dir contents */ 25357c478bd9Sstevel@tonic-gate (void) strlcpy(devlink, dev_dir, sizeof (devlink)); 25367c478bd9Sstevel@tonic-gate (void) strlcat(devlink, "/", sizeof (devlink)); 25377c478bd9Sstevel@tonic-gate (void) strlcat(devlink, link, sizeof (devlink)); 25387c478bd9Sstevel@tonic-gate 25397c478bd9Sstevel@tonic-gate /* 25407c478bd9Sstevel@tonic-gate * Calculate # of ../ to add. Account for double '//' in path. 25417c478bd9Sstevel@tonic-gate * Ignore all leading slashes. 25427c478bd9Sstevel@tonic-gate */ 25437c478bd9Sstevel@tonic-gate for (i = 0; link[i] == '/'; i++) 25447c478bd9Sstevel@tonic-gate ; 25457c478bd9Sstevel@tonic-gate for (numslashes = 0; link[i] != '\0'; i++) { 25467c478bd9Sstevel@tonic-gate if (link[i] == '/') { 25477c478bd9Sstevel@tonic-gate if (last_was_slash == FALSE) { 25487c478bd9Sstevel@tonic-gate numslashes++; 25497c478bd9Sstevel@tonic-gate last_was_slash = TRUE; 25507c478bd9Sstevel@tonic-gate } 25517c478bd9Sstevel@tonic-gate } else { 25527c478bd9Sstevel@tonic-gate last_was_slash = FALSE; 25537c478bd9Sstevel@tonic-gate } 25547c478bd9Sstevel@tonic-gate } 25557c478bd9Sstevel@tonic-gate /* Don't count any trailing '/' */ 25567c478bd9Sstevel@tonic-gate if (link[i-1] == '/') { 25577c478bd9Sstevel@tonic-gate numslashes--; 25587c478bd9Sstevel@tonic-gate } 25597c478bd9Sstevel@tonic-gate 25607c478bd9Sstevel@tonic-gate rcontents[0] = '\0'; 25617c478bd9Sstevel@tonic-gate do { 25627c478bd9Sstevel@tonic-gate (void) strlcat(rcontents, "../", sizeof (rcontents)); 25637c478bd9Sstevel@tonic-gate } while (numslashes-- != 0); 25647c478bd9Sstevel@tonic-gate 25657c478bd9Sstevel@tonic-gate (void) strlcat(rcontents, "devices", sizeof (rcontents)); 25667c478bd9Sstevel@tonic-gate (void) strlcat(rcontents, acontents, sizeof (rcontents)); 25677c478bd9Sstevel@tonic-gate 25687c478bd9Sstevel@tonic-gate if (devlinks_debug == TRUE) { 25697c478bd9Sstevel@tonic-gate vprint(INFO_MID, "adding link %s ==> %s\n", devlink, rcontents); 25707c478bd9Sstevel@tonic-gate } 25717c478bd9Sstevel@tonic-gate 25727c478bd9Sstevel@tonic-gate if ((rv = create_link_common(devlink, rcontents, &link_exists)) 25737c478bd9Sstevel@tonic-gate == DEVFSADM_SUCCESS) { 25747c478bd9Sstevel@tonic-gate linknew = TRUE; 25757c478bd9Sstevel@tonic-gate add_link_to_cache(link, acontents); 25767c478bd9Sstevel@tonic-gate } else { 25777c478bd9Sstevel@tonic-gate linknew = FALSE; 25787c478bd9Sstevel@tonic-gate } 25797c478bd9Sstevel@tonic-gate 25807c478bd9Sstevel@tonic-gate if (link_exists == TRUE) { 25816e670f77Saj /* Link exists or was just created */ 25826e670f77Saj (void) di_devlink_add_link(devlink_cache, link, rcontents, 25836e670f77Saj DI_PRIMARY_LINK); 25846e670f77Saj 25856e670f77Saj if (system_labeled && (flags & DA_ADD)) { 258645916cd2Sjpk /* 25876e670f77Saj * Add this to the list of allocatable devices. If this 25886e670f77Saj * is a hotplugged, removable disk, add it as rmdisk. 258945916cd2Sjpk */ 25906e670f77Saj int instance = di_instance(node); 259145916cd2Sjpk 25926e670f77Saj if ((flags & DA_CD) && 25936e670f77Saj (_da_check_for_usb(devlink, root_dir) == 1)) { 259445916cd2Sjpk (void) da_add_list(&devlist, devlink, instance, 259545916cd2Sjpk DA_ADD|DA_RMDISK); 259645916cd2Sjpk update_devdb = DA_RMDISK; 25976e670f77Saj } else if (linknew == TRUE) { 25986e670f77Saj (void) da_add_list(&devlist, devlink, instance, 25996e670f77Saj flags); 26006e670f77Saj update_devdb = flags; 260145916cd2Sjpk } 260245916cd2Sjpk } 26037c478bd9Sstevel@tonic-gate } 26047c478bd9Sstevel@tonic-gate 26057c478bd9Sstevel@tonic-gate return (rv); 26067c478bd9Sstevel@tonic-gate } 26077c478bd9Sstevel@tonic-gate 26087c478bd9Sstevel@tonic-gate /* 26097c478bd9Sstevel@tonic-gate * Creates a symlink link to primary_link. Calculates relative 26107c478bd9Sstevel@tonic-gate * directory offsets, then calls link_common(). 26117c478bd9Sstevel@tonic-gate */ 26127c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 26137c478bd9Sstevel@tonic-gate int 26147c478bd9Sstevel@tonic-gate devfsadm_secondary_link(char *link, char *primary_link, int flags) 26157c478bd9Sstevel@tonic-gate { 26167c478bd9Sstevel@tonic-gate char contents[PATH_MAX + 1]; 26177c478bd9Sstevel@tonic-gate char devlink[PATH_MAX + 1]; 26187c478bd9Sstevel@tonic-gate int rv, link_exists; 26197c478bd9Sstevel@tonic-gate char *fpath; 26207c478bd9Sstevel@tonic-gate char *tpath; 26217c478bd9Sstevel@tonic-gate char *op; 26227c478bd9Sstevel@tonic-gate 26237c478bd9Sstevel@tonic-gate /* prepend link with dev_dir contents */ 26247c478bd9Sstevel@tonic-gate (void) strcpy(devlink, dev_dir); 26257c478bd9Sstevel@tonic-gate (void) strcat(devlink, "/"); 26267c478bd9Sstevel@tonic-gate (void) strcat(devlink, link); 26277c478bd9Sstevel@tonic-gate /* 26287c478bd9Sstevel@tonic-gate * building extra link, so use first link as link contents, but first 26297c478bd9Sstevel@tonic-gate * make it relative. 26307c478bd9Sstevel@tonic-gate */ 26317c478bd9Sstevel@tonic-gate fpath = link; 26327c478bd9Sstevel@tonic-gate tpath = primary_link; 26337c478bd9Sstevel@tonic-gate op = contents; 26347c478bd9Sstevel@tonic-gate 26357c478bd9Sstevel@tonic-gate while (*fpath == *tpath && *fpath != '\0') { 26367c478bd9Sstevel@tonic-gate fpath++, tpath++; 26377c478bd9Sstevel@tonic-gate } 26387c478bd9Sstevel@tonic-gate 26397c478bd9Sstevel@tonic-gate /* Count directories to go up, if any, and add "../" */ 26407c478bd9Sstevel@tonic-gate while (*fpath != '\0') { 26417c478bd9Sstevel@tonic-gate if (*fpath == '/') { 26427c478bd9Sstevel@tonic-gate (void) strcpy(op, "../"); 26437c478bd9Sstevel@tonic-gate op += 3; 26447c478bd9Sstevel@tonic-gate } 26457c478bd9Sstevel@tonic-gate fpath++; 26467c478bd9Sstevel@tonic-gate } 26477c478bd9Sstevel@tonic-gate 26487c478bd9Sstevel@tonic-gate /* 26497c478bd9Sstevel@tonic-gate * Back up to the start of the current path component, in 26507c478bd9Sstevel@tonic-gate * case in the middle 26517c478bd9Sstevel@tonic-gate */ 26527c478bd9Sstevel@tonic-gate while (tpath != primary_link && *(tpath-1) != '/') { 26537c478bd9Sstevel@tonic-gate tpath--; 26547c478bd9Sstevel@tonic-gate } 26557c478bd9Sstevel@tonic-gate (void) strcpy(op, tpath); 26567c478bd9Sstevel@tonic-gate 26577c478bd9Sstevel@tonic-gate if (devlinks_debug == TRUE) { 26587c478bd9Sstevel@tonic-gate vprint(INFO_MID, "adding extra link %s ==> %s\n", 26590a653502Swroche devlink, contents); 26607c478bd9Sstevel@tonic-gate } 26617c478bd9Sstevel@tonic-gate 26627c478bd9Sstevel@tonic-gate if ((rv = create_link_common(devlink, contents, &link_exists)) 26637c478bd9Sstevel@tonic-gate == DEVFSADM_SUCCESS) { 26647c478bd9Sstevel@tonic-gate /* 26657c478bd9Sstevel@tonic-gate * we need to save the ultimate /devices contents, and not the 26667c478bd9Sstevel@tonic-gate * secondary link, since hotcleanup only looks at /devices path. 26677c478bd9Sstevel@tonic-gate * Since we don't have devices path here, we can try to get it 26687c478bd9Sstevel@tonic-gate * by readlink'ing the secondary link. This assumes the primary 26697c478bd9Sstevel@tonic-gate * link was created first. 26707c478bd9Sstevel@tonic-gate */ 26717c478bd9Sstevel@tonic-gate add_link_to_cache(link, lphy_path); 26727c478bd9Sstevel@tonic-gate linknew = TRUE; 267345916cd2Sjpk if (system_labeled && 267445916cd2Sjpk ((flags & DA_AUDIO) && (flags & DA_ADD))) { 267545916cd2Sjpk /* 267645916cd2Sjpk * Add this device to the list of allocatable devices. 267745916cd2Sjpk */ 267845916cd2Sjpk int instance = 0; 267945916cd2Sjpk 268045916cd2Sjpk op = strrchr(contents, '/'); 268145916cd2Sjpk op++; 268245916cd2Sjpk (void) sscanf(op, "%d", &instance); 268345916cd2Sjpk (void) da_add_list(&devlist, devlink, instance, flags); 268445916cd2Sjpk update_devdb = flags; 268545916cd2Sjpk } 26867c478bd9Sstevel@tonic-gate } else { 26877c478bd9Sstevel@tonic-gate linknew = FALSE; 26887c478bd9Sstevel@tonic-gate } 26897c478bd9Sstevel@tonic-gate 26907c478bd9Sstevel@tonic-gate /* 26917c478bd9Sstevel@tonic-gate * If link exists or was just created, add it to the database 26927c478bd9Sstevel@tonic-gate */ 26937c478bd9Sstevel@tonic-gate if (link_exists == TRUE) { 26947c478bd9Sstevel@tonic-gate (void) di_devlink_add_link(devlink_cache, link, contents, 26957c478bd9Sstevel@tonic-gate DI_SECONDARY_LINK); 26967c478bd9Sstevel@tonic-gate } 26977c478bd9Sstevel@tonic-gate 26987c478bd9Sstevel@tonic-gate return (rv); 26997c478bd9Sstevel@tonic-gate } 27007c478bd9Sstevel@tonic-gate 27017c478bd9Sstevel@tonic-gate /* returns pointer to the devices directory */ 27027c478bd9Sstevel@tonic-gate char * 27037c478bd9Sstevel@tonic-gate devfsadm_get_devices_dir() 27047c478bd9Sstevel@tonic-gate { 27057c478bd9Sstevel@tonic-gate return (devices_dir); 27067c478bd9Sstevel@tonic-gate } 27077c478bd9Sstevel@tonic-gate 27087c478bd9Sstevel@tonic-gate /* 27097c478bd9Sstevel@tonic-gate * Does the actual link creation. VERBOSE_MID only used if there is 27107c478bd9Sstevel@tonic-gate * a change. CHATTY_MID used otherwise. 27117c478bd9Sstevel@tonic-gate */ 27127c478bd9Sstevel@tonic-gate static int 27137c478bd9Sstevel@tonic-gate create_link_common(char *devlink, char *contents, int *exists) 27147c478bd9Sstevel@tonic-gate { 27157c478bd9Sstevel@tonic-gate int try; 27167c478bd9Sstevel@tonic-gate int linksize; 27177c478bd9Sstevel@tonic-gate int max_tries = 0; 27187c478bd9Sstevel@tonic-gate static int prev_link_existed = TRUE; 27197c478bd9Sstevel@tonic-gate char checkcontents[PATH_MAX + 1]; 27207c478bd9Sstevel@tonic-gate char *hide; 27217c478bd9Sstevel@tonic-gate 27227c478bd9Sstevel@tonic-gate *exists = FALSE; 27237c478bd9Sstevel@tonic-gate 27247c478bd9Sstevel@tonic-gate /* Database is not updated when file_mods == FALSE */ 27257c478bd9Sstevel@tonic-gate if (file_mods == FALSE) { 2726*94c894bbSVikram Hegde /* we want *actual* link contents so no alias redirection */ 27277c478bd9Sstevel@tonic-gate linksize = readlink(devlink, checkcontents, PATH_MAX); 27287c478bd9Sstevel@tonic-gate if (linksize > 0) { 27297c478bd9Sstevel@tonic-gate checkcontents[linksize] = '\0'; 27307c478bd9Sstevel@tonic-gate if (strcmp(checkcontents, contents) != 0) { 27317c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, REMOVING_LINK, 27320a653502Swroche devlink, checkcontents); 27337c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 27347c478bd9Sstevel@tonic-gate } else { 27357c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "link exists and is correct:" 27360a653502Swroche " %s -> %s\n", devlink, contents); 27377c478bd9Sstevel@tonic-gate /* failure only in that the link existed */ 27387c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 27397c478bd9Sstevel@tonic-gate } 27407c478bd9Sstevel@tonic-gate } else { 27417c478bd9Sstevel@tonic-gate vprint(VERBOSE_MID, CREATING_LINK, devlink, contents); 27427c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 27437c478bd9Sstevel@tonic-gate } 27447c478bd9Sstevel@tonic-gate } 27457c478bd9Sstevel@tonic-gate 27467c478bd9Sstevel@tonic-gate /* 27477c478bd9Sstevel@tonic-gate * systems calls are expensive, so predict whether to readlink 27487c478bd9Sstevel@tonic-gate * or symlink first, based on previous attempt 27497c478bd9Sstevel@tonic-gate */ 27507c478bd9Sstevel@tonic-gate if (prev_link_existed == FALSE) { 27517c478bd9Sstevel@tonic-gate try = CREATE_LINK; 27527c478bd9Sstevel@tonic-gate } else { 27537c478bd9Sstevel@tonic-gate try = READ_LINK; 27547c478bd9Sstevel@tonic-gate } 27557c478bd9Sstevel@tonic-gate 27567c478bd9Sstevel@tonic-gate while (++max_tries <= 3) { 27577c478bd9Sstevel@tonic-gate 27587c478bd9Sstevel@tonic-gate switch (try) { 27597c478bd9Sstevel@tonic-gate case CREATE_LINK: 27607c478bd9Sstevel@tonic-gate 27617c478bd9Sstevel@tonic-gate if (symlink(contents, devlink) == 0) { 27627c478bd9Sstevel@tonic-gate vprint(VERBOSE_MID, CREATING_LINK, devlink, 27630a653502Swroche contents); 27647c478bd9Sstevel@tonic-gate prev_link_existed = FALSE; 27657c478bd9Sstevel@tonic-gate /* link successfully created */ 27667c478bd9Sstevel@tonic-gate *exists = TRUE; 27677c478bd9Sstevel@tonic-gate set_logindev_perms(devlink); 27687c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 27697c478bd9Sstevel@tonic-gate } else { 27707c478bd9Sstevel@tonic-gate switch (errno) { 27717c478bd9Sstevel@tonic-gate 27727c478bd9Sstevel@tonic-gate case ENOENT: 27737c478bd9Sstevel@tonic-gate /* dirpath to node doesn't exist */ 27747c478bd9Sstevel@tonic-gate hide = strrchr(devlink, '/'); 27757c478bd9Sstevel@tonic-gate *hide = '\0'; 27767c478bd9Sstevel@tonic-gate s_mkdirp(devlink, S_IRWXU|S_IRGRP| 27770a653502Swroche S_IXGRP|S_IROTH|S_IXOTH); 27787c478bd9Sstevel@tonic-gate *hide = '/'; 27797c478bd9Sstevel@tonic-gate break; 27807c478bd9Sstevel@tonic-gate case EEXIST: 27817c478bd9Sstevel@tonic-gate try = READ_LINK; 27827c478bd9Sstevel@tonic-gate break; 27837c478bd9Sstevel@tonic-gate default: 27847c478bd9Sstevel@tonic-gate err_print(SYMLINK_FAILED, devlink, 27850a653502Swroche contents, strerror(errno)); 27867c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 27877c478bd9Sstevel@tonic-gate } 27887c478bd9Sstevel@tonic-gate } 27897c478bd9Sstevel@tonic-gate break; 27907c478bd9Sstevel@tonic-gate 27917c478bd9Sstevel@tonic-gate case READ_LINK: 27927c478bd9Sstevel@tonic-gate 2793*94c894bbSVikram Hegde /* 2794*94c894bbSVikram Hegde * If there is redirection, new phys path 2795*94c894bbSVikram Hegde * and old phys path will not match and the 2796*94c894bbSVikram Hegde * link will be created with new phys path 2797*94c894bbSVikram Hegde * which is what we want. So we want real 2798*94c894bbSVikram Hegde * contents. 2799*94c894bbSVikram Hegde */ 28007c478bd9Sstevel@tonic-gate linksize = readlink(devlink, checkcontents, PATH_MAX); 28017c478bd9Sstevel@tonic-gate if (linksize >= 0) { 28027c478bd9Sstevel@tonic-gate checkcontents[linksize] = '\0'; 28037c478bd9Sstevel@tonic-gate if (strcmp(checkcontents, contents) != 0) { 28047c478bd9Sstevel@tonic-gate s_unlink(devlink); 28057c478bd9Sstevel@tonic-gate vprint(VERBOSE_MID, REMOVING_LINK, 28060a653502Swroche devlink, checkcontents); 28077c478bd9Sstevel@tonic-gate try = CREATE_LINK; 28087c478bd9Sstevel@tonic-gate } else { 28097c478bd9Sstevel@tonic-gate prev_link_existed = TRUE; 28107c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, 28110a653502Swroche "link exists and is correct:" 28120a653502Swroche " %s -> %s\n", devlink, contents); 28137c478bd9Sstevel@tonic-gate *exists = TRUE; 28147c478bd9Sstevel@tonic-gate /* failure in that the link existed */ 28157c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 28167c478bd9Sstevel@tonic-gate } 28177c478bd9Sstevel@tonic-gate } else { 28187c478bd9Sstevel@tonic-gate switch (errno) { 28197c478bd9Sstevel@tonic-gate case EINVAL: 28207c478bd9Sstevel@tonic-gate /* not a symlink, remove and create */ 28217c478bd9Sstevel@tonic-gate s_unlink(devlink); 28227c478bd9Sstevel@tonic-gate default: 28237c478bd9Sstevel@tonic-gate /* maybe it didn't exist at all */ 28247c478bd9Sstevel@tonic-gate try = CREATE_LINK; 28257c478bd9Sstevel@tonic-gate break; 28267c478bd9Sstevel@tonic-gate } 28277c478bd9Sstevel@tonic-gate } 28287c478bd9Sstevel@tonic-gate break; 28297c478bd9Sstevel@tonic-gate } 28307c478bd9Sstevel@tonic-gate } 28317c478bd9Sstevel@tonic-gate err_print(MAX_ATTEMPTS, devlink, contents); 28327c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 28337c478bd9Sstevel@tonic-gate } 28347c478bd9Sstevel@tonic-gate 28357c478bd9Sstevel@tonic-gate static void 28367c478bd9Sstevel@tonic-gate set_logindev_perms(char *devlink) 28377c478bd9Sstevel@tonic-gate { 28387c478bd9Sstevel@tonic-gate struct login_dev *newdev; 28397c478bd9Sstevel@tonic-gate struct passwd pwd, *resp; 28407c478bd9Sstevel@tonic-gate char pwd_buf[PATH_MAX]; 28417c478bd9Sstevel@tonic-gate int rv; 28427c478bd9Sstevel@tonic-gate struct stat sb; 28437c478bd9Sstevel@tonic-gate char *devfs_path = NULL; 28447c478bd9Sstevel@tonic-gate 28457c478bd9Sstevel@tonic-gate /* 28467c478bd9Sstevel@tonic-gate * We only want logindev perms to be set when a device is 28477c478bd9Sstevel@tonic-gate * hotplugged or an application requests synchronous creates. 28487c478bd9Sstevel@tonic-gate * So we enable this only in daemon mode. In addition, 28497c478bd9Sstevel@tonic-gate * login(1) only fixes the std. /dev dir. So we don't 28507c478bd9Sstevel@tonic-gate * change perms if alternate root is set. 28517c478bd9Sstevel@tonic-gate * login_dev_enable is TRUE only in these cases. 28527c478bd9Sstevel@tonic-gate */ 28537c478bd9Sstevel@tonic-gate if (login_dev_enable != TRUE) 28547c478bd9Sstevel@tonic-gate return; 28557c478bd9Sstevel@tonic-gate 28567c478bd9Sstevel@tonic-gate /* 28577c478bd9Sstevel@tonic-gate * Normally, /etc/logindevperm has few (8 - 10 entries) which 28587c478bd9Sstevel@tonic-gate * may be regular expressions (globs were converted to RE). 28597c478bd9Sstevel@tonic-gate * So just do a linear search through the list. 28607c478bd9Sstevel@tonic-gate */ 28617c478bd9Sstevel@tonic-gate for (newdev = login_dev_cache; newdev; newdev = newdev->ldev_next) { 28627c478bd9Sstevel@tonic-gate vprint(FILES_MID, "matching %s with %s\n", devlink, 28637c478bd9Sstevel@tonic-gate newdev->ldev_device); 28647c478bd9Sstevel@tonic-gate 28657c478bd9Sstevel@tonic-gate if (regexec(&newdev->ldev_device_regex, devlink, 0, 28667c478bd9Sstevel@tonic-gate NULL, 0) == 0) { 28677c478bd9Sstevel@tonic-gate vprint(FILES_MID, "matched %s with %s\n", devlink, 28687c478bd9Sstevel@tonic-gate newdev->ldev_device); 28697c478bd9Sstevel@tonic-gate break; 28707c478bd9Sstevel@tonic-gate } 28717c478bd9Sstevel@tonic-gate } 28727c478bd9Sstevel@tonic-gate 28737c478bd9Sstevel@tonic-gate if (newdev == NULL) 28747c478bd9Sstevel@tonic-gate return; 28757c478bd9Sstevel@tonic-gate 28767c478bd9Sstevel@tonic-gate /* 28777c478bd9Sstevel@tonic-gate * we have a match, now find the driver associated with this 28787c478bd9Sstevel@tonic-gate * minor node using a snapshot on the physical path 28797c478bd9Sstevel@tonic-gate */ 28807c478bd9Sstevel@tonic-gate (void) resolve_link(devlink, NULL, NULL, &devfs_path, 0); 2881*94c894bbSVikram Hegde /* 2882*94c894bbSVikram Hegde * We dont need redirection here - the actual link contents 2883*94c894bbSVikram Hegde * whether "alias" or "current" are fine 2884*94c894bbSVikram Hegde */ 28857c478bd9Sstevel@tonic-gate if (devfs_path) { 28867c478bd9Sstevel@tonic-gate di_node_t node; 2887*94c894bbSVikram Hegde char *drv; 28887c478bd9Sstevel@tonic-gate struct driver_list *list; 28897c478bd9Sstevel@tonic-gate char *p; 28907c478bd9Sstevel@tonic-gate 28917c478bd9Sstevel@tonic-gate /* truncate on : so we can take a snapshot */ 28927c478bd9Sstevel@tonic-gate (void) strcpy(pwd_buf, devfs_path); 28937c478bd9Sstevel@tonic-gate p = strrchr(pwd_buf, ':'); 28947c478bd9Sstevel@tonic-gate if (p == NULL) { 28957c478bd9Sstevel@tonic-gate free(devfs_path); 28967c478bd9Sstevel@tonic-gate return; 28977c478bd9Sstevel@tonic-gate } 28987c478bd9Sstevel@tonic-gate *p = '\0'; 28997c478bd9Sstevel@tonic-gate 29007c478bd9Sstevel@tonic-gate vprint(FILES_MID, "link=%s->physpath=%s\n", 29017c478bd9Sstevel@tonic-gate devlink, pwd_buf); 29027c478bd9Sstevel@tonic-gate 29037c478bd9Sstevel@tonic-gate node = di_init(pwd_buf, DINFOMINOR); 29047c478bd9Sstevel@tonic-gate 2905*94c894bbSVikram Hegde drv = NULL; 29067c478bd9Sstevel@tonic-gate if (node) { 29077c478bd9Sstevel@tonic-gate drv = di_driver_name(node); 29087c478bd9Sstevel@tonic-gate 29097c478bd9Sstevel@tonic-gate if (drv) { 29107c478bd9Sstevel@tonic-gate vprint(FILES_MID, "%s: driver is %s\n", 29117c478bd9Sstevel@tonic-gate devlink, drv); 29127c478bd9Sstevel@tonic-gate } 29137c478bd9Sstevel@tonic-gate } 29147c478bd9Sstevel@tonic-gate /* search thru the driver list specified in logindevperm */ 29157c478bd9Sstevel@tonic-gate list = newdev->ldev_driver_list; 29167c478bd9Sstevel@tonic-gate if ((drv != NULL) && (list != NULL)) { 29177c478bd9Sstevel@tonic-gate while (list) { 29187c478bd9Sstevel@tonic-gate if (strcmp(list->driver_name, 29197c478bd9Sstevel@tonic-gate drv) == 0) { 29207c478bd9Sstevel@tonic-gate vprint(FILES_MID, 29217c478bd9Sstevel@tonic-gate "driver %s match!\n", drv); 29227c478bd9Sstevel@tonic-gate break; 29237c478bd9Sstevel@tonic-gate } 29247c478bd9Sstevel@tonic-gate list = list->next; 29257c478bd9Sstevel@tonic-gate } 29267c478bd9Sstevel@tonic-gate if (list == NULL) { 29277c478bd9Sstevel@tonic-gate vprint(FILES_MID, "no driver match!\n"); 29287c478bd9Sstevel@tonic-gate free(devfs_path); 29297c478bd9Sstevel@tonic-gate return; 29307c478bd9Sstevel@tonic-gate } 29317c478bd9Sstevel@tonic-gate } 29327c478bd9Sstevel@tonic-gate free(devfs_path); 2933*94c894bbSVikram Hegde di_fini(node); 29347c478bd9Sstevel@tonic-gate } else { 29357c478bd9Sstevel@tonic-gate return; 29367c478bd9Sstevel@tonic-gate } 29377c478bd9Sstevel@tonic-gate 29387c478bd9Sstevel@tonic-gate vprint(FILES_MID, "changing permissions of %s\n", devlink); 29397c478bd9Sstevel@tonic-gate 29407c478bd9Sstevel@tonic-gate /* 29417c478bd9Sstevel@tonic-gate * We have a match. We now attempt to determine the 29427c478bd9Sstevel@tonic-gate * owner and group of the console user. 29437c478bd9Sstevel@tonic-gate * 29447c478bd9Sstevel@tonic-gate * stat() the console device newdev->ldev_console 29457c478bd9Sstevel@tonic-gate * which will always exist - it will have the right owner but 29467c478bd9Sstevel@tonic-gate * not the right group. Use getpwuid_r() to determine group for this 29477c478bd9Sstevel@tonic-gate * uid. 29487c478bd9Sstevel@tonic-gate * Note, it is safe to use name service here since if name services 29497c478bd9Sstevel@tonic-gate * are not available (during boot or in single-user mode), then 29507c478bd9Sstevel@tonic-gate * console owner will be root and its gid can be found in 29517c478bd9Sstevel@tonic-gate * local files. 29527c478bd9Sstevel@tonic-gate */ 29537c478bd9Sstevel@tonic-gate if (stat(newdev->ldev_console, &sb) == -1) { 29547c478bd9Sstevel@tonic-gate vprint(VERBOSE_MID, STAT_FAILED, newdev->ldev_console, 29557c478bd9Sstevel@tonic-gate strerror(errno)); 29567c478bd9Sstevel@tonic-gate return; 29577c478bd9Sstevel@tonic-gate } 29587c478bd9Sstevel@tonic-gate 29597c478bd9Sstevel@tonic-gate resp = NULL; 29607c478bd9Sstevel@tonic-gate rv = getpwuid_r(sb.st_uid, &pwd, pwd_buf, sizeof (pwd_buf), &resp); 29617c478bd9Sstevel@tonic-gate if (rv || resp == NULL) { 29627c478bd9Sstevel@tonic-gate rv = rv ? rv : EINVAL; 29637c478bd9Sstevel@tonic-gate vprint(VERBOSE_MID, GID_FAILED, sb.st_uid, 29647c478bd9Sstevel@tonic-gate strerror(rv)); 29657c478bd9Sstevel@tonic-gate return; 29667c478bd9Sstevel@tonic-gate } 29677c478bd9Sstevel@tonic-gate 29687c478bd9Sstevel@tonic-gate assert(&pwd == resp); 29697c478bd9Sstevel@tonic-gate 29707c478bd9Sstevel@tonic-gate sb.st_gid = resp->pw_gid; 29717c478bd9Sstevel@tonic-gate 29727c478bd9Sstevel@tonic-gate if (chmod(devlink, newdev->ldev_perms) == -1) { 29737c478bd9Sstevel@tonic-gate vprint(VERBOSE_MID, CHMOD_FAILED, devlink, 29747c478bd9Sstevel@tonic-gate strerror(errno)); 29757c478bd9Sstevel@tonic-gate return; 29767c478bd9Sstevel@tonic-gate } 29777c478bd9Sstevel@tonic-gate 29787c478bd9Sstevel@tonic-gate if (chown(devlink, sb.st_uid, sb.st_gid) == -1) { 29797c478bd9Sstevel@tonic-gate vprint(VERBOSE_MID, CHOWN_FAILED, devlink, 29807c478bd9Sstevel@tonic-gate strerror(errno)); 29817c478bd9Sstevel@tonic-gate } 29827c478bd9Sstevel@tonic-gate } 29837c478bd9Sstevel@tonic-gate 29847c478bd9Sstevel@tonic-gate /* 29857c478bd9Sstevel@tonic-gate * Reset /devices node with appropriate permissions and 29867c478bd9Sstevel@tonic-gate * ownership as specified in /etc/minor_perm. 29877c478bd9Sstevel@tonic-gate */ 29887c478bd9Sstevel@tonic-gate static void 29897c478bd9Sstevel@tonic-gate reset_node_permissions(di_node_t node, di_minor_t minor) 29907c478bd9Sstevel@tonic-gate { 29917c478bd9Sstevel@tonic-gate int spectype; 29927c478bd9Sstevel@tonic-gate char phy_path[PATH_MAX + 1]; 29937c478bd9Sstevel@tonic-gate mode_t mode; 29947c478bd9Sstevel@tonic-gate dev_t dev; 29957c478bd9Sstevel@tonic-gate uid_t uid; 29967c478bd9Sstevel@tonic-gate gid_t gid; 29977c478bd9Sstevel@tonic-gate struct stat sb; 29987c478bd9Sstevel@tonic-gate char *dev_path, *aminor = NULL; 29997c478bd9Sstevel@tonic-gate 30007c478bd9Sstevel@tonic-gate /* lphy_path starts with / */ 30017c478bd9Sstevel@tonic-gate if ((dev_path = di_devfs_path(node)) == NULL) { 30027c478bd9Sstevel@tonic-gate err_print(DI_DEVFS_PATH_FAILED, strerror(errno)); 30037c478bd9Sstevel@tonic-gate devfsadm_exit(1); 3004537714daSvikram /*NOTREACHED*/ 30057c478bd9Sstevel@tonic-gate } 30067c478bd9Sstevel@tonic-gate (void) strcpy(lphy_path, dev_path); 30077c478bd9Sstevel@tonic-gate di_devfs_path_free(dev_path); 30087c478bd9Sstevel@tonic-gate 30097c478bd9Sstevel@tonic-gate (void) strcat(lphy_path, ":"); 30107c478bd9Sstevel@tonic-gate if (di_minor_type(minor) == DDM_ALIAS) { 30117c478bd9Sstevel@tonic-gate char *driver; 30127c478bd9Sstevel@tonic-gate aminor = di_minor_name(minor); 30137c478bd9Sstevel@tonic-gate driver = di_driver_name(di_minor_devinfo(minor)); 30147c478bd9Sstevel@tonic-gate (void) strcat(lphy_path, driver); 30157c478bd9Sstevel@tonic-gate } else 30167c478bd9Sstevel@tonic-gate (void) strcat(lphy_path, di_minor_name(minor)); 30177c478bd9Sstevel@tonic-gate 30187c478bd9Sstevel@tonic-gate (void) strcpy(phy_path, devices_dir); 30197c478bd9Sstevel@tonic-gate (void) strcat(phy_path, lphy_path); 30207c478bd9Sstevel@tonic-gate 30217c478bd9Sstevel@tonic-gate lnode = node; 30227c478bd9Sstevel@tonic-gate lminor = minor; 30237c478bd9Sstevel@tonic-gate 30247c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "reset_node_permissions: phy_path=%s lphy_path=%s\n", 30250a653502Swroche phy_path, lphy_path); 30267c478bd9Sstevel@tonic-gate 30277c478bd9Sstevel@tonic-gate dev = di_minor_devt(minor); 30287c478bd9Sstevel@tonic-gate spectype = di_minor_spectype(minor); /* block or char */ 30297c478bd9Sstevel@tonic-gate 30307c478bd9Sstevel@tonic-gate getattr(phy_path, aminor, spectype, dev, &mode, &uid, &gid); 30317c478bd9Sstevel@tonic-gate 30327c478bd9Sstevel@tonic-gate /* 30337c478bd9Sstevel@tonic-gate * compare and set permissions and ownership 30347c478bd9Sstevel@tonic-gate * 30357c478bd9Sstevel@tonic-gate * Under devfs, a quick insertion and removal of USB devices 30367c478bd9Sstevel@tonic-gate * would cause stat of physical path to fail. In this case, 30377c478bd9Sstevel@tonic-gate * we emit a verbose message, but don't print errors. 30387c478bd9Sstevel@tonic-gate */ 30397c478bd9Sstevel@tonic-gate if ((stat(phy_path, &sb) == -1) || (sb.st_rdev != dev)) { 30407c478bd9Sstevel@tonic-gate vprint(VERBOSE_MID, NO_DEVFS_NODE, phy_path); 30417c478bd9Sstevel@tonic-gate return; 30427c478bd9Sstevel@tonic-gate } 30437c478bd9Sstevel@tonic-gate 30447c478bd9Sstevel@tonic-gate /* 304545916cd2Sjpk * If we are here for a new device 304645916cd2Sjpk * If device allocation is on 304745916cd2Sjpk * then 304845916cd2Sjpk * set ownership to root:other and permissions to 0000 304945916cd2Sjpk * else 305045916cd2Sjpk * set ownership and permissions as specified in minor_perm 305145916cd2Sjpk * If we are here for an existing device 305245916cd2Sjpk * If device allocation is to be turned on 305345916cd2Sjpk * then 305445916cd2Sjpk * reset ownership to root:other and permissions to 0000 305545916cd2Sjpk * else if device allocation is to be turned off 305645916cd2Sjpk * reset ownership and permissions to those specified in 305745916cd2Sjpk * minor_perm 305845916cd2Sjpk * else 3059ff2aee48Scth * preserve existing/user-modified ownership and 306045916cd2Sjpk * permissions 306145916cd2Sjpk * 306245916cd2Sjpk * devfs indicates a new device by faking access time to be zero. 30637c478bd9Sstevel@tonic-gate */ 30647c478bd9Sstevel@tonic-gate if (sb.st_atime != 0) { 30657c478bd9Sstevel@tonic-gate int i; 30667c478bd9Sstevel@tonic-gate char *nt; 30677c478bd9Sstevel@tonic-gate 306845916cd2Sjpk if ((devalloc_flag == 0) && (devalloc_is_on != 1)) 306945916cd2Sjpk /* 307045916cd2Sjpk * Leave existing devices as they are if we are not 307145916cd2Sjpk * turning device allocation on/off. 307245916cd2Sjpk */ 30737c478bd9Sstevel@tonic-gate return; 30747c478bd9Sstevel@tonic-gate 30757c478bd9Sstevel@tonic-gate nt = di_minor_nodetype(minor); 307645916cd2Sjpk 30777c478bd9Sstevel@tonic-gate if (nt == NULL) 30787c478bd9Sstevel@tonic-gate return; 307945916cd2Sjpk 308045916cd2Sjpk for (i = 0; devalloc_list[i]; i++) { 308145916cd2Sjpk if (strcmp(nt, devalloc_list[i]) == 0) 308245916cd2Sjpk /* 308345916cd2Sjpk * One of the types recognized by devalloc, 308445916cd2Sjpk * reset attrs. 308545916cd2Sjpk */ 30867c478bd9Sstevel@tonic-gate break; 30877c478bd9Sstevel@tonic-gate } 308845916cd2Sjpk if (devalloc_list[i] == NULL) 30897c478bd9Sstevel@tonic-gate return; 30907c478bd9Sstevel@tonic-gate } 30917c478bd9Sstevel@tonic-gate 30927c478bd9Sstevel@tonic-gate if (file_mods == FALSE) { 30937c478bd9Sstevel@tonic-gate /* Nothing more to do if simulating */ 30947c478bd9Sstevel@tonic-gate vprint(VERBOSE_MID, PERM_MSG, phy_path, uid, gid, mode); 30957c478bd9Sstevel@tonic-gate return; 30967c478bd9Sstevel@tonic-gate } 30977c478bd9Sstevel@tonic-gate 30988c206d17Spr if ((devalloc_flag == DA_ON) || 30998c206d17Spr ((devalloc_is_on == 1) && (devalloc_flag != DA_OFF))) { 310045916cd2Sjpk /* 31018c206d17Spr * we are here either to turn device allocation on or 31028c206d17Spr * to add a new device while device allocation is on 31038c206d17Spr * (and we've confirmed that we're not turning it 31048c206d17Spr * off). 310545916cd2Sjpk */ 310645916cd2Sjpk mode = DEALLOC_MODE; 310745916cd2Sjpk uid = DA_UID; 310845916cd2Sjpk gid = DA_GID; 310945916cd2Sjpk } 311045916cd2Sjpk 311145916cd2Sjpk if ((devalloc_is_on == 1) || (devalloc_flag == DA_ON) || 311245916cd2Sjpk (sb.st_mode != mode)) { 31137c478bd9Sstevel@tonic-gate if (chmod(phy_path, mode) == -1) 31147c478bd9Sstevel@tonic-gate vprint(VERBOSE_MID, CHMOD_FAILED, 31157c478bd9Sstevel@tonic-gate phy_path, strerror(errno)); 31167c478bd9Sstevel@tonic-gate } 311745916cd2Sjpk if ((devalloc_is_on == 1) || (devalloc_flag == DA_ON) || 311845916cd2Sjpk (sb.st_uid != uid || sb.st_gid != gid)) { 31197c478bd9Sstevel@tonic-gate if (chown(phy_path, uid, gid) == -1) 31207c478bd9Sstevel@tonic-gate vprint(VERBOSE_MID, CHOWN_FAILED, 31217c478bd9Sstevel@tonic-gate phy_path, strerror(errno)); 31227c478bd9Sstevel@tonic-gate } 31237c478bd9Sstevel@tonic-gate 31247c478bd9Sstevel@tonic-gate /* Report that we actually did something */ 31257c478bd9Sstevel@tonic-gate vprint(VERBOSE_MID, PERM_MSG, phy_path, uid, gid, mode); 31267c478bd9Sstevel@tonic-gate } 31277c478bd9Sstevel@tonic-gate 31287c478bd9Sstevel@tonic-gate /* 31297c478bd9Sstevel@tonic-gate * Removes logical link and the minor node it refers to. If file is a 31307c478bd9Sstevel@tonic-gate * link, we recurse and try to remove the minor node (or link if path is 31317c478bd9Sstevel@tonic-gate * a double link) that file's link contents refer to. 31327c478bd9Sstevel@tonic-gate */ 31337c478bd9Sstevel@tonic-gate static void 31347c478bd9Sstevel@tonic-gate devfsadm_rm_work(char *file, int recurse, int file_type) 31357c478bd9Sstevel@tonic-gate { 31367c478bd9Sstevel@tonic-gate char *fcn = "devfsadm_rm_work: "; 31377c478bd9Sstevel@tonic-gate int linksize; 31387c478bd9Sstevel@tonic-gate char contents[PATH_MAX + 1]; 31397c478bd9Sstevel@tonic-gate char nextfile[PATH_MAX + 1]; 31407c478bd9Sstevel@tonic-gate char newfile[PATH_MAX + 1]; 31417c478bd9Sstevel@tonic-gate char *ptr; 31427c478bd9Sstevel@tonic-gate 31437c478bd9Sstevel@tonic-gate vprint(REMOVE_MID, "%s%s\n", fcn, file); 31447c478bd9Sstevel@tonic-gate 3145*94c894bbSVikram Hegde /* 3146*94c894bbSVikram Hegde * Note: we don't remove /devices (non-links) entries because they are 3147*94c894bbSVikram Hegde * covered by devfs. 3148*94c894bbSVikram Hegde */ 3149*94c894bbSVikram Hegde if (file_type != TYPE_LINK) { 3150*94c894bbSVikram Hegde return; 31517c478bd9Sstevel@tonic-gate } 31527c478bd9Sstevel@tonic-gate 3153*94c894bbSVikram Hegde /* split into multiple if's due to excessive indentations */ 3154*94c894bbSVikram Hegde (void) strcpy(newfile, dev_dir); 3155*94c894bbSVikram Hegde (void) strcat(newfile, "/"); 3156*94c894bbSVikram Hegde (void) strcat(newfile, file); 3157*94c894bbSVikram Hegde 3158*94c894bbSVikram Hegde /* 3159*94c894bbSVikram Hegde * we dont care about the content of the symlink, so 3160*94c894bbSVikram Hegde * redirection is not needed. 3161*94c894bbSVikram Hegde */ 3162*94c894bbSVikram Hegde if ((recurse == TRUE) && 31637c478bd9Sstevel@tonic-gate ((linksize = readlink(newfile, contents, PATH_MAX)) > 0)) { 31647c478bd9Sstevel@tonic-gate contents[linksize] = '\0'; 31657c478bd9Sstevel@tonic-gate 3166*94c894bbSVikram Hegde /* 3167*94c894bbSVikram Hegde * recurse if link points to another link 3168*94c894bbSVikram Hegde */ 3169*94c894bbSVikram Hegde if (is_minor_node(contents, &ptr) != DEVFSADM_TRUE) { 31707c478bd9Sstevel@tonic-gate if (strncmp(contents, DEV "/", strlen(DEV) + 1) == 0) { 31717c478bd9Sstevel@tonic-gate devfsadm_rm_work(&contents[strlen(DEV) + 1], 31720a653502Swroche TRUE, TYPE_LINK); 31737c478bd9Sstevel@tonic-gate } else { 31747c478bd9Sstevel@tonic-gate if ((ptr = strrchr(file, '/')) != NULL) { 31757c478bd9Sstevel@tonic-gate *ptr = '\0'; 31767c478bd9Sstevel@tonic-gate (void) strcpy(nextfile, file); 31777c478bd9Sstevel@tonic-gate *ptr = '/'; 31787c478bd9Sstevel@tonic-gate (void) strcat(nextfile, "/"); 31797c478bd9Sstevel@tonic-gate } else { 31807c478bd9Sstevel@tonic-gate (void) strcpy(nextfile, ""); 31817c478bd9Sstevel@tonic-gate } 31827c478bd9Sstevel@tonic-gate (void) strcat(nextfile, contents); 31837c478bd9Sstevel@tonic-gate devfsadm_rm_work(nextfile, TRUE, TYPE_LINK); 31847c478bd9Sstevel@tonic-gate } 31857c478bd9Sstevel@tonic-gate } 31867c478bd9Sstevel@tonic-gate } 31877c478bd9Sstevel@tonic-gate 3188*94c894bbSVikram Hegde vprint(VERBOSE_MID, DEVFSADM_UNLINK, newfile); 3189*94c894bbSVikram Hegde if (file_mods == TRUE) { 3190*94c894bbSVikram Hegde rm_link_from_cache(file); 3191*94c894bbSVikram Hegde s_unlink(newfile); 3192*94c894bbSVikram Hegde rm_parent_dir_if_empty(newfile); 3193*94c894bbSVikram Hegde invalidate_enumerate_cache(); 3194*94c894bbSVikram Hegde (void) di_devlink_rm_link(devlink_cache, file); 31957c478bd9Sstevel@tonic-gate } 31967c478bd9Sstevel@tonic-gate } 31977c478bd9Sstevel@tonic-gate 31987c478bd9Sstevel@tonic-gate void 31997c478bd9Sstevel@tonic-gate devfsadm_rm_link(char *file) 32007c478bd9Sstevel@tonic-gate { 32017c478bd9Sstevel@tonic-gate devfsadm_rm_work(file, FALSE, TYPE_LINK); 32027c478bd9Sstevel@tonic-gate } 32037c478bd9Sstevel@tonic-gate 32047c478bd9Sstevel@tonic-gate void 32057c478bd9Sstevel@tonic-gate devfsadm_rm_all(char *file) 32067c478bd9Sstevel@tonic-gate { 32077c478bd9Sstevel@tonic-gate devfsadm_rm_work(file, TRUE, TYPE_LINK); 32087c478bd9Sstevel@tonic-gate } 32097c478bd9Sstevel@tonic-gate 32104bc0a2efScasper static int 32117c478bd9Sstevel@tonic-gate s_rmdir(char *path) 32127c478bd9Sstevel@tonic-gate { 32137c478bd9Sstevel@tonic-gate int i; 32147c478bd9Sstevel@tonic-gate char *rpath, *dir; 32157c478bd9Sstevel@tonic-gate const char *fcn = "s_rmdir"; 32167c478bd9Sstevel@tonic-gate 32177c478bd9Sstevel@tonic-gate /* 32187c478bd9Sstevel@tonic-gate * Certain directories are created at install time by packages. 32197c478bd9Sstevel@tonic-gate * Some of them (listed in packaged_dirs[]) are required by apps 32207c478bd9Sstevel@tonic-gate * and need to be present even when empty. 32217c478bd9Sstevel@tonic-gate */ 32227c478bd9Sstevel@tonic-gate vprint(REMOVE_MID, "%s: checking if %s is packaged\n", fcn, path); 32237c478bd9Sstevel@tonic-gate 32247c478bd9Sstevel@tonic-gate rpath = path + strlen(dev_dir) + 1; 32257c478bd9Sstevel@tonic-gate 32267c478bd9Sstevel@tonic-gate for (i = 0; (dir = packaged_dirs[i]) != NULL; i++) { 32277c478bd9Sstevel@tonic-gate if (*rpath == *dir) { 32287c478bd9Sstevel@tonic-gate if (strcmp(rpath, dir) == 0) { 32297c478bd9Sstevel@tonic-gate vprint(REMOVE_MID, "%s: skipping packaged dir: " 32307c478bd9Sstevel@tonic-gate "%s\n", fcn, path); 32314bc0a2efScasper errno = EEXIST; 32324bc0a2efScasper return (-1); 32337c478bd9Sstevel@tonic-gate } 32347c478bd9Sstevel@tonic-gate } 32357c478bd9Sstevel@tonic-gate } 32367c478bd9Sstevel@tonic-gate 32374bc0a2efScasper return (rmdir(path)); 32387c478bd9Sstevel@tonic-gate } 32397c478bd9Sstevel@tonic-gate 32407c478bd9Sstevel@tonic-gate /* 32417c478bd9Sstevel@tonic-gate * Try to remove any empty directories up the tree. It is assumed that 32427c478bd9Sstevel@tonic-gate * pathname is a file that was removed, so start with its parent, and 32437c478bd9Sstevel@tonic-gate * work up the tree. 32447c478bd9Sstevel@tonic-gate */ 32457c478bd9Sstevel@tonic-gate static void 32467c478bd9Sstevel@tonic-gate rm_parent_dir_if_empty(char *pathname) 32477c478bd9Sstevel@tonic-gate { 32487c478bd9Sstevel@tonic-gate char *ptr, path[PATH_MAX + 1]; 32497c478bd9Sstevel@tonic-gate char *fcn = "rm_parent_dir_if_empty: "; 32507c478bd9Sstevel@tonic-gate 32517c478bd9Sstevel@tonic-gate vprint(REMOVE_MID, "%schecking %s if empty\n", fcn, pathname); 32527c478bd9Sstevel@tonic-gate 32537c478bd9Sstevel@tonic-gate (void) strcpy(path, pathname); 32547c478bd9Sstevel@tonic-gate 32557c478bd9Sstevel@tonic-gate /* 32567c478bd9Sstevel@tonic-gate * ascend up the dir tree, deleting all empty dirs. 32577c478bd9Sstevel@tonic-gate * Return immediately if a dir is not empty. 32587c478bd9Sstevel@tonic-gate */ 32597c478bd9Sstevel@tonic-gate for (;;) { 32607c478bd9Sstevel@tonic-gate 32617c478bd9Sstevel@tonic-gate if ((ptr = strrchr(path, '/')) == NULL) { 32627c478bd9Sstevel@tonic-gate return; 32637c478bd9Sstevel@tonic-gate } 32647c478bd9Sstevel@tonic-gate 32657c478bd9Sstevel@tonic-gate *ptr = '\0'; 32667c478bd9Sstevel@tonic-gate 3267e37c6c37Scth if (finddev_emptydir(path)) { 3268e37c6c37Scth /* directory is empty */ 3269facf4a8dSllai if (s_rmdir(path) == 0) { 3270facf4a8dSllai vprint(REMOVE_MID, 3271facf4a8dSllai "%sremoving empty dir %s\n", fcn, path); 3272facf4a8dSllai } else if (errno == EEXIST) { 3273facf4a8dSllai vprint(REMOVE_MID, 3274facf4a8dSllai "%sfailed to remove dir: %s\n", fcn, path); 3275facf4a8dSllai return; 3276facf4a8dSllai } 3277facf4a8dSllai } else { 3278facf4a8dSllai /* some other file is here, so return */ 32797c478bd9Sstevel@tonic-gate vprint(REMOVE_MID, "%sdir not empty: %s\n", fcn, path); 32807c478bd9Sstevel@tonic-gate return; 32817c478bd9Sstevel@tonic-gate } 32827c478bd9Sstevel@tonic-gate } 32837c478bd9Sstevel@tonic-gate } 32847c478bd9Sstevel@tonic-gate 32857c478bd9Sstevel@tonic-gate /* 32867c478bd9Sstevel@tonic-gate * This function and all the functions it calls below were added to 32877c478bd9Sstevel@tonic-gate * handle the unique problem with world wide names (WWN). The problem is 32887c478bd9Sstevel@tonic-gate * that if a WWN device is moved to another address on the same controller 32897c478bd9Sstevel@tonic-gate * its logical link will change, while the physical node remains the same. 32907c478bd9Sstevel@tonic-gate * The result is that two logical links will point to the same physical path 32917c478bd9Sstevel@tonic-gate * in /devices, the valid link and a stale link. This function will 32927c478bd9Sstevel@tonic-gate * find all the stale nodes, though at a significant performance cost. 32937c478bd9Sstevel@tonic-gate * 32947c478bd9Sstevel@tonic-gate * Caching is used to increase performance. 32957c478bd9Sstevel@tonic-gate * A cache will be built from disk if the cache tag doesn't already exist. 32967c478bd9Sstevel@tonic-gate * The cache tag is a regular expression "dir_re", which selects a 32977c478bd9Sstevel@tonic-gate * subset of disks to search from typically something like 32987c478bd9Sstevel@tonic-gate * "dev/cXt[0-9]+d[0-9]+s[0-9]+". After the cache is built, consistency must 32997c478bd9Sstevel@tonic-gate * be maintained, so entries are added as new links are created, and removed 33007c478bd9Sstevel@tonic-gate * as old links are deleted. The whole cache is flushed if we are a daemon, 33017c478bd9Sstevel@tonic-gate * and another devfsadm process ran in between. 33027c478bd9Sstevel@tonic-gate * 33037c478bd9Sstevel@tonic-gate * Once the cache is built, this function finds the cache which matches 33047c478bd9Sstevel@tonic-gate * dir_re, and then it searches all links in that cache looking for 33057c478bd9Sstevel@tonic-gate * any link whose contents match "valid_link_contents" with a corresponding link 33067c478bd9Sstevel@tonic-gate * which does not match "valid_link". Any such matches are stale and removed. 3307*94c894bbSVikram Hegde * 3308*94c894bbSVikram Hegde * This happens outside the context of a "reparenting" so we dont need 3309*94c894bbSVikram Hegde * redirection. 33107c478bd9Sstevel@tonic-gate */ 33117c478bd9Sstevel@tonic-gate void 33127c478bd9Sstevel@tonic-gate devfsadm_rm_stale_links(char *dir_re, char *valid_link, di_node_t node, 33137c478bd9Sstevel@tonic-gate di_minor_t minor) 33147c478bd9Sstevel@tonic-gate { 33157c478bd9Sstevel@tonic-gate link_t *link; 33167c478bd9Sstevel@tonic-gate linkhead_t *head; 33177c478bd9Sstevel@tonic-gate char phy_path[PATH_MAX + 1]; 33187c478bd9Sstevel@tonic-gate char *valid_link_contents; 33197c478bd9Sstevel@tonic-gate char *dev_path; 33207c478bd9Sstevel@tonic-gate char rmlink[PATH_MAX + 1]; 33217c478bd9Sstevel@tonic-gate 33227c478bd9Sstevel@tonic-gate /* 33237c478bd9Sstevel@tonic-gate * try to use devices path 33247c478bd9Sstevel@tonic-gate */ 33257c478bd9Sstevel@tonic-gate if ((node == lnode) && (minor == lminor)) { 33267c478bd9Sstevel@tonic-gate valid_link_contents = lphy_path; 33277c478bd9Sstevel@tonic-gate } else { 33287c478bd9Sstevel@tonic-gate if ((dev_path = di_devfs_path(node)) == NULL) { 33297c478bd9Sstevel@tonic-gate err_print(DI_DEVFS_PATH_FAILED, strerror(errno)); 33307c478bd9Sstevel@tonic-gate devfsadm_exit(1); 3331537714daSvikram /*NOTREACHED*/ 33327c478bd9Sstevel@tonic-gate } 33337c478bd9Sstevel@tonic-gate (void) strcpy(phy_path, dev_path); 33347c478bd9Sstevel@tonic-gate di_devfs_path_free(dev_path); 33357c478bd9Sstevel@tonic-gate 33367c478bd9Sstevel@tonic-gate (void) strcat(phy_path, ":"); 33377c478bd9Sstevel@tonic-gate (void) strcat(phy_path, di_minor_name(minor)); 33387c478bd9Sstevel@tonic-gate valid_link_contents = phy_path; 33397c478bd9Sstevel@tonic-gate } 33407c478bd9Sstevel@tonic-gate 33417c478bd9Sstevel@tonic-gate /* 33427c478bd9Sstevel@tonic-gate * As an optimization, check to make sure the corresponding 33437c478bd9Sstevel@tonic-gate * devlink was just created before continuing. 33447c478bd9Sstevel@tonic-gate */ 33457c478bd9Sstevel@tonic-gate 33467c478bd9Sstevel@tonic-gate if (linknew == FALSE) { 33477c478bd9Sstevel@tonic-gate return; 33487c478bd9Sstevel@tonic-gate } 33497c478bd9Sstevel@tonic-gate 33507c478bd9Sstevel@tonic-gate head = get_cached_links(dir_re); 33517c478bd9Sstevel@tonic-gate 33527c478bd9Sstevel@tonic-gate assert(head->nextlink == NULL); 33537c478bd9Sstevel@tonic-gate 33547c478bd9Sstevel@tonic-gate for (link = head->link; link != NULL; link = head->nextlink) { 33557c478bd9Sstevel@tonic-gate /* 33567c478bd9Sstevel@tonic-gate * See hot_cleanup() for why we do this 33577c478bd9Sstevel@tonic-gate */ 33587c478bd9Sstevel@tonic-gate head->nextlink = link->next; 33597c478bd9Sstevel@tonic-gate if ((strcmp(link->contents, valid_link_contents) == 0) && 33607c478bd9Sstevel@tonic-gate (strcmp(link->devlink, valid_link) != 0)) { 33617c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "removing %s -> %s\n" 33620a653502Swroche "valid link is: %s -> %s\n", 33630a653502Swroche link->devlink, link->contents, 33640a653502Swroche valid_link, valid_link_contents); 33657c478bd9Sstevel@tonic-gate /* 33667c478bd9Sstevel@tonic-gate * Use a copy of the cached link name as the 33677c478bd9Sstevel@tonic-gate * cache entry will go away during link removal 33687c478bd9Sstevel@tonic-gate */ 33697c478bd9Sstevel@tonic-gate (void) snprintf(rmlink, sizeof (rmlink), "%s", 33707c478bd9Sstevel@tonic-gate link->devlink); 33717c478bd9Sstevel@tonic-gate devfsadm_rm_link(rmlink); 33727c478bd9Sstevel@tonic-gate } 33737c478bd9Sstevel@tonic-gate } 33747c478bd9Sstevel@tonic-gate } 33757c478bd9Sstevel@tonic-gate 33767c478bd9Sstevel@tonic-gate /* 33777c478bd9Sstevel@tonic-gate * Return previously created cache, or create cache. 33787c478bd9Sstevel@tonic-gate */ 33797c478bd9Sstevel@tonic-gate static linkhead_t * 33807c478bd9Sstevel@tonic-gate get_cached_links(char *dir_re) 33817c478bd9Sstevel@tonic-gate { 33827c478bd9Sstevel@tonic-gate recurse_dev_t rd; 33837c478bd9Sstevel@tonic-gate linkhead_t *linkhead; 33847c478bd9Sstevel@tonic-gate int n; 33857c478bd9Sstevel@tonic-gate 33867c478bd9Sstevel@tonic-gate vprint(BUILDCACHE_MID, "get_cached_links: %s\n", dir_re); 33877c478bd9Sstevel@tonic-gate 33887c478bd9Sstevel@tonic-gate for (linkhead = headlinkhead; linkhead != NULL; 33890a653502Swroche linkhead = linkhead->nexthead) { 33907c478bd9Sstevel@tonic-gate if (strcmp(linkhead->dir_re, dir_re) == 0) { 33917c478bd9Sstevel@tonic-gate return (linkhead); 33927c478bd9Sstevel@tonic-gate } 33937c478bd9Sstevel@tonic-gate } 33947c478bd9Sstevel@tonic-gate 33957c478bd9Sstevel@tonic-gate /* 33967c478bd9Sstevel@tonic-gate * This tag is not in cache, so add it, along with all its 33977c478bd9Sstevel@tonic-gate * matching /dev entries. This is the only time we go to disk. 33987c478bd9Sstevel@tonic-gate */ 33997c478bd9Sstevel@tonic-gate linkhead = s_malloc(sizeof (linkhead_t)); 34007c478bd9Sstevel@tonic-gate linkhead->nexthead = headlinkhead; 34017c478bd9Sstevel@tonic-gate headlinkhead = linkhead; 34027c478bd9Sstevel@tonic-gate linkhead->dir_re = s_strdup(dir_re); 34037c478bd9Sstevel@tonic-gate 34047c478bd9Sstevel@tonic-gate if ((n = regcomp(&(linkhead->dir_re_compiled), dir_re, 34050a653502Swroche REG_EXTENDED)) != 0) { 34067c478bd9Sstevel@tonic-gate err_print(REGCOMP_FAILED, dir_re, n); 34077c478bd9Sstevel@tonic-gate } 34087c478bd9Sstevel@tonic-gate 34097c478bd9Sstevel@tonic-gate linkhead->nextlink = NULL; 34107c478bd9Sstevel@tonic-gate linkhead->link = NULL; 34117c478bd9Sstevel@tonic-gate 34127c478bd9Sstevel@tonic-gate rd.fcn = build_devlink_list; 34137c478bd9Sstevel@tonic-gate rd.data = (void *)linkhead; 34147c478bd9Sstevel@tonic-gate 34157c478bd9Sstevel@tonic-gate vprint(BUILDCACHE_MID, "get_cached_links: calling recurse_dev_re\n"); 34167c478bd9Sstevel@tonic-gate 34177c478bd9Sstevel@tonic-gate /* call build_devlink_list for each directory in the dir_re RE */ 34187c478bd9Sstevel@tonic-gate if (dir_re[0] == '/') { 34197c478bd9Sstevel@tonic-gate recurse_dev_re("/", &dir_re[1], &rd); 34207c478bd9Sstevel@tonic-gate } else { 34217c478bd9Sstevel@tonic-gate recurse_dev_re(dev_dir, dir_re, &rd); 34227c478bd9Sstevel@tonic-gate } 34237c478bd9Sstevel@tonic-gate 34247c478bd9Sstevel@tonic-gate return (linkhead); 34257c478bd9Sstevel@tonic-gate } 34267c478bd9Sstevel@tonic-gate 34277c478bd9Sstevel@tonic-gate static void 34287c478bd9Sstevel@tonic-gate build_devlink_list(char *devlink, void *data) 34297c478bd9Sstevel@tonic-gate { 34307c478bd9Sstevel@tonic-gate char *fcn = "build_devlink_list: "; 34317c478bd9Sstevel@tonic-gate char *ptr; 34327c478bd9Sstevel@tonic-gate char *r_contents; 34337c478bd9Sstevel@tonic-gate char *r_devlink; 34347c478bd9Sstevel@tonic-gate char contents[PATH_MAX + 1]; 34357c478bd9Sstevel@tonic-gate char newlink[PATH_MAX + 1]; 34367c478bd9Sstevel@tonic-gate char stage_link[PATH_MAX + 1]; 34377c478bd9Sstevel@tonic-gate int linksize; 34387c478bd9Sstevel@tonic-gate linkhead_t *linkhead = (linkhead_t *)data; 34397c478bd9Sstevel@tonic-gate link_t *link; 34407c478bd9Sstevel@tonic-gate int i = 0; 34417c478bd9Sstevel@tonic-gate 34427c478bd9Sstevel@tonic-gate vprint(BUILDCACHE_MID, "%scheck_link: %s\n", fcn, devlink); 34437c478bd9Sstevel@tonic-gate 34447c478bd9Sstevel@tonic-gate (void) strcpy(newlink, devlink); 34457c478bd9Sstevel@tonic-gate 34467c478bd9Sstevel@tonic-gate do { 3447*94c894bbSVikram Hegde /* 3448*94c894bbSVikram Hegde * None of the consumers of this function need redirection 3449*94c894bbSVikram Hegde * so this readlink gets the "current" contents 3450*94c894bbSVikram Hegde */ 34517c478bd9Sstevel@tonic-gate linksize = readlink(newlink, contents, PATH_MAX); 34527c478bd9Sstevel@tonic-gate if (linksize <= 0) { 34537c478bd9Sstevel@tonic-gate /* 34547c478bd9Sstevel@tonic-gate * The first pass through the do loop we may readlink() 34557c478bd9Sstevel@tonic-gate * non-symlink files(EINVAL) from false regexec matches. 34567c478bd9Sstevel@tonic-gate * Suppress error messages in those cases or if the link 34577c478bd9Sstevel@tonic-gate * content is the empty string. 34587c478bd9Sstevel@tonic-gate */ 34597c478bd9Sstevel@tonic-gate if (linksize < 0 && (i || errno != EINVAL)) 34607c478bd9Sstevel@tonic-gate err_print(READLINK_FAILED, "build_devlink_list", 34617c478bd9Sstevel@tonic-gate newlink, strerror(errno)); 34627c478bd9Sstevel@tonic-gate return; 34637c478bd9Sstevel@tonic-gate } 34647c478bd9Sstevel@tonic-gate contents[linksize] = '\0'; 34657c478bd9Sstevel@tonic-gate i = 1; 34667c478bd9Sstevel@tonic-gate 34677c478bd9Sstevel@tonic-gate if (is_minor_node(contents, &r_contents) == DEVFSADM_FALSE) { 34687c478bd9Sstevel@tonic-gate /* 34697c478bd9Sstevel@tonic-gate * assume that link contents is really a pointer to 34707c478bd9Sstevel@tonic-gate * another link, so recurse and read its link contents. 34717c478bd9Sstevel@tonic-gate * 34727c478bd9Sstevel@tonic-gate * some link contents are absolute: 34737c478bd9Sstevel@tonic-gate * /dev/audio -> /dev/sound/0 34747c478bd9Sstevel@tonic-gate */ 34757c478bd9Sstevel@tonic-gate if (strncmp(contents, DEV "/", 34760a653502Swroche strlen(DEV) + strlen("/")) != 0) { 34777c478bd9Sstevel@tonic-gate 34787c478bd9Sstevel@tonic-gate if ((ptr = strrchr(newlink, '/')) == NULL) { 34797c478bd9Sstevel@tonic-gate vprint(REMOVE_MID, "%s%s -> %s invalid " 34800a653502Swroche "link. missing '/'\n", fcn, 34810a653502Swroche newlink, contents); 34820a653502Swroche return; 34837c478bd9Sstevel@tonic-gate } 34847c478bd9Sstevel@tonic-gate *ptr = '\0'; 34857c478bd9Sstevel@tonic-gate (void) strcpy(stage_link, newlink); 34867c478bd9Sstevel@tonic-gate *ptr = '/'; 34877c478bd9Sstevel@tonic-gate (void) strcat(stage_link, "/"); 34887c478bd9Sstevel@tonic-gate (void) strcat(stage_link, contents); 34897c478bd9Sstevel@tonic-gate (void) strcpy(newlink, stage_link); 34907c478bd9Sstevel@tonic-gate } else { 34917c478bd9Sstevel@tonic-gate (void) strcpy(newlink, dev_dir); 34927c478bd9Sstevel@tonic-gate (void) strcat(newlink, "/"); 34937c478bd9Sstevel@tonic-gate (void) strcat(newlink, 34940a653502Swroche &contents[strlen(DEV) + strlen("/")]); 34957c478bd9Sstevel@tonic-gate } 34967c478bd9Sstevel@tonic-gate 34977c478bd9Sstevel@tonic-gate } else { 34987c478bd9Sstevel@tonic-gate newlink[0] = '\0'; 34997c478bd9Sstevel@tonic-gate } 35007c478bd9Sstevel@tonic-gate } while (newlink[0] != '\0'); 35017c478bd9Sstevel@tonic-gate 35027c478bd9Sstevel@tonic-gate if (strncmp(devlink, dev_dir, strlen(dev_dir)) != 0) { 35037c478bd9Sstevel@tonic-gate vprint(BUILDCACHE_MID, "%sinvalid link: %s\n", fcn, devlink); 35047c478bd9Sstevel@tonic-gate return; 35057c478bd9Sstevel@tonic-gate } 35067c478bd9Sstevel@tonic-gate 35077c478bd9Sstevel@tonic-gate r_devlink = devlink + strlen(dev_dir); 35087c478bd9Sstevel@tonic-gate 35097c478bd9Sstevel@tonic-gate if (r_devlink[0] != '/') 35107c478bd9Sstevel@tonic-gate return; 35117c478bd9Sstevel@tonic-gate 35127c478bd9Sstevel@tonic-gate link = s_malloc(sizeof (link_t)); 35137c478bd9Sstevel@tonic-gate 35147c478bd9Sstevel@tonic-gate /* don't store the '/' after rootdir/dev */ 35157c478bd9Sstevel@tonic-gate r_devlink += 1; 35167c478bd9Sstevel@tonic-gate 35177c478bd9Sstevel@tonic-gate vprint(BUILDCACHE_MID, "%scaching link: %s\n", fcn, r_devlink); 35187c478bd9Sstevel@tonic-gate link->devlink = s_strdup(r_devlink); 35197c478bd9Sstevel@tonic-gate 35207c478bd9Sstevel@tonic-gate link->contents = s_strdup(r_contents); 35217c478bd9Sstevel@tonic-gate 35227c478bd9Sstevel@tonic-gate link->next = linkhead->link; 35237c478bd9Sstevel@tonic-gate linkhead->link = link; 35247c478bd9Sstevel@tonic-gate } 35257c478bd9Sstevel@tonic-gate 35267c478bd9Sstevel@tonic-gate /* 35277c478bd9Sstevel@tonic-gate * to be consistent, devlink must not begin with / and must be 35287c478bd9Sstevel@tonic-gate * relative to /dev/, whereas physpath must contain / and be 35297c478bd9Sstevel@tonic-gate * relative to /devices. 35307c478bd9Sstevel@tonic-gate */ 35317c478bd9Sstevel@tonic-gate static void 35327c478bd9Sstevel@tonic-gate add_link_to_cache(char *devlink, char *physpath) 35337c478bd9Sstevel@tonic-gate { 35347c478bd9Sstevel@tonic-gate linkhead_t *linkhead; 35357c478bd9Sstevel@tonic-gate link_t *link; 35367c478bd9Sstevel@tonic-gate int added = 0; 35377c478bd9Sstevel@tonic-gate 35387c478bd9Sstevel@tonic-gate if (file_mods == FALSE) { 35397c478bd9Sstevel@tonic-gate return; 35407c478bd9Sstevel@tonic-gate } 35417c478bd9Sstevel@tonic-gate 35427c478bd9Sstevel@tonic-gate vprint(CACHE_MID, "add_link_to_cache: %s -> %s ", 35430a653502Swroche devlink, physpath); 35447c478bd9Sstevel@tonic-gate 35457c478bd9Sstevel@tonic-gate for (linkhead = headlinkhead; linkhead != NULL; 35460a653502Swroche linkhead = linkhead->nexthead) { 35470a653502Swroche if (regexec(&(linkhead->dir_re_compiled), devlink, 0, NULL, 0) 35480a653502Swroche == 0) { 35497c478bd9Sstevel@tonic-gate added++; 35507c478bd9Sstevel@tonic-gate link = s_malloc(sizeof (link_t)); 35517c478bd9Sstevel@tonic-gate link->devlink = s_strdup(devlink); 35527c478bd9Sstevel@tonic-gate link->contents = s_strdup(physpath); 35537c478bd9Sstevel@tonic-gate link->next = linkhead->link; 35547c478bd9Sstevel@tonic-gate linkhead->link = link; 35557c478bd9Sstevel@tonic-gate } 35567c478bd9Sstevel@tonic-gate } 35577c478bd9Sstevel@tonic-gate 35587c478bd9Sstevel@tonic-gate vprint(CACHE_MID, 35590a653502Swroche " %d %s\n", added, added == 0 ? "NOT ADDED" : "ADDED"); 35607c478bd9Sstevel@tonic-gate } 35617c478bd9Sstevel@tonic-gate 35627c478bd9Sstevel@tonic-gate /* 35637c478bd9Sstevel@tonic-gate * Remove devlink from cache. Devlink must be relative to /dev/ and not start 35647c478bd9Sstevel@tonic-gate * with /. 35657c478bd9Sstevel@tonic-gate */ 35667c478bd9Sstevel@tonic-gate static void 35677c478bd9Sstevel@tonic-gate rm_link_from_cache(char *devlink) 35687c478bd9Sstevel@tonic-gate { 35697c478bd9Sstevel@tonic-gate linkhead_t *linkhead; 35707c478bd9Sstevel@tonic-gate link_t **linkp; 35717c478bd9Sstevel@tonic-gate link_t *save; 35727c478bd9Sstevel@tonic-gate 35737c478bd9Sstevel@tonic-gate vprint(CACHE_MID, "rm_link_from_cache enter: %s\n", devlink); 35747c478bd9Sstevel@tonic-gate 35757c478bd9Sstevel@tonic-gate for (linkhead = headlinkhead; linkhead != NULL; 35767c478bd9Sstevel@tonic-gate linkhead = linkhead->nexthead) { 35770a653502Swroche if (regexec(&(linkhead->dir_re_compiled), devlink, 0, NULL, 0) 35780a653502Swroche == 0) { 35797c478bd9Sstevel@tonic-gate 35807c478bd9Sstevel@tonic-gate for (linkp = &(linkhead->link); *linkp != NULL; ) { 35817c478bd9Sstevel@tonic-gate if ((strcmp((*linkp)->devlink, devlink) == 0)) { 35827c478bd9Sstevel@tonic-gate save = *linkp; 35837c478bd9Sstevel@tonic-gate *linkp = (*linkp)->next; 35847c478bd9Sstevel@tonic-gate /* 35857c478bd9Sstevel@tonic-gate * We are removing our caller's 35867c478bd9Sstevel@tonic-gate * "next" link. Update the nextlink 35877c478bd9Sstevel@tonic-gate * field in the head so that our 35887c478bd9Sstevel@tonic-gate * callers accesses the next valid 35897c478bd9Sstevel@tonic-gate * link 35907c478bd9Sstevel@tonic-gate */ 35917c478bd9Sstevel@tonic-gate if (linkhead->nextlink == save) 35927c478bd9Sstevel@tonic-gate linkhead->nextlink = *linkp; 35937c478bd9Sstevel@tonic-gate free(save->devlink); 35947c478bd9Sstevel@tonic-gate free(save->contents); 35957c478bd9Sstevel@tonic-gate free(save); 35967c478bd9Sstevel@tonic-gate vprint(CACHE_MID, " %s FREED FROM " 35970a653502Swroche "CACHE\n", devlink); 35987c478bd9Sstevel@tonic-gate } else { 35997c478bd9Sstevel@tonic-gate linkp = &((*linkp)->next); 36007c478bd9Sstevel@tonic-gate } 36017c478bd9Sstevel@tonic-gate } 36027c478bd9Sstevel@tonic-gate } 36037c478bd9Sstevel@tonic-gate } 36047c478bd9Sstevel@tonic-gate } 36057c478bd9Sstevel@tonic-gate 36067c478bd9Sstevel@tonic-gate static void 36077c478bd9Sstevel@tonic-gate rm_all_links_from_cache() 36087c478bd9Sstevel@tonic-gate { 36097c478bd9Sstevel@tonic-gate linkhead_t *linkhead; 36107c478bd9Sstevel@tonic-gate linkhead_t *nextlinkhead; 36117c478bd9Sstevel@tonic-gate link_t *link; 36127c478bd9Sstevel@tonic-gate link_t *nextlink; 36137c478bd9Sstevel@tonic-gate 36147c478bd9Sstevel@tonic-gate vprint(CACHE_MID, "rm_all_links_from_cache\n"); 36157c478bd9Sstevel@tonic-gate 36167c478bd9Sstevel@tonic-gate for (linkhead = headlinkhead; linkhead != NULL; 36170a653502Swroche linkhead = nextlinkhead) { 36187c478bd9Sstevel@tonic-gate 36197c478bd9Sstevel@tonic-gate nextlinkhead = linkhead->nexthead; 36207c478bd9Sstevel@tonic-gate assert(linkhead->nextlink == NULL); 36217c478bd9Sstevel@tonic-gate for (link = linkhead->link; link != NULL; link = nextlink) { 36227c478bd9Sstevel@tonic-gate nextlink = link->next; 36237c478bd9Sstevel@tonic-gate free(link->devlink); 36247c478bd9Sstevel@tonic-gate free(link->contents); 36257c478bd9Sstevel@tonic-gate free(link); 36267c478bd9Sstevel@tonic-gate } 36277c478bd9Sstevel@tonic-gate regfree(&(linkhead->dir_re_compiled)); 36287c478bd9Sstevel@tonic-gate free(linkhead->dir_re); 36297c478bd9Sstevel@tonic-gate free(linkhead); 36307c478bd9Sstevel@tonic-gate } 36317c478bd9Sstevel@tonic-gate headlinkhead = NULL; 36327c478bd9Sstevel@tonic-gate } 36337c478bd9Sstevel@tonic-gate 36347c478bd9Sstevel@tonic-gate /* 36357c478bd9Sstevel@tonic-gate * Called when the kernel has modified the incore path_to_inst data. This 36367c478bd9Sstevel@tonic-gate * function will schedule a flush of the data to the filesystem. 36377c478bd9Sstevel@tonic-gate */ 36387c478bd9Sstevel@tonic-gate static void 36397c478bd9Sstevel@tonic-gate devfs_instance_mod(void) 36407c478bd9Sstevel@tonic-gate { 36417c478bd9Sstevel@tonic-gate char *fcn = "devfs_instance_mod: "; 36427c478bd9Sstevel@tonic-gate vprint(PATH2INST_MID, "%senter\n", fcn); 36437c478bd9Sstevel@tonic-gate 36447c478bd9Sstevel@tonic-gate /* signal instance thread */ 36457c478bd9Sstevel@tonic-gate (void) mutex_lock(&count_lock); 36467c478bd9Sstevel@tonic-gate inst_count++; 36477c478bd9Sstevel@tonic-gate (void) cond_signal(&cv); 36487c478bd9Sstevel@tonic-gate (void) mutex_unlock(&count_lock); 36497c478bd9Sstevel@tonic-gate } 36507c478bd9Sstevel@tonic-gate 36517c478bd9Sstevel@tonic-gate static void 36527c478bd9Sstevel@tonic-gate instance_flush_thread(void) 36537c478bd9Sstevel@tonic-gate { 36547c478bd9Sstevel@tonic-gate int i; 36557c478bd9Sstevel@tonic-gate int idle; 36567c478bd9Sstevel@tonic-gate 36577c478bd9Sstevel@tonic-gate for (;;) { 36587c478bd9Sstevel@tonic-gate 36597c478bd9Sstevel@tonic-gate (void) mutex_lock(&count_lock); 36607c478bd9Sstevel@tonic-gate while (inst_count == 0) { 36617c478bd9Sstevel@tonic-gate (void) cond_wait(&cv, &count_lock); 36627c478bd9Sstevel@tonic-gate } 36637c478bd9Sstevel@tonic-gate inst_count = 0; 36647c478bd9Sstevel@tonic-gate 36657c478bd9Sstevel@tonic-gate vprint(PATH2INST_MID, "signaled to flush path_to_inst." 36660a653502Swroche " Enter delay loop\n"); 36677c478bd9Sstevel@tonic-gate /* 36687c478bd9Sstevel@tonic-gate * Wait MAX_IDLE_DELAY seconds after getting the last flush 36697c478bd9Sstevel@tonic-gate * path_to_inst event before invoking a flush, but never wait 36707c478bd9Sstevel@tonic-gate * more than MAX_DELAY seconds after getting the first event. 36717c478bd9Sstevel@tonic-gate */ 36727c478bd9Sstevel@tonic-gate for (idle = 0, i = 0; i < MAX_DELAY; i++) { 36737c478bd9Sstevel@tonic-gate 36747c478bd9Sstevel@tonic-gate (void) mutex_unlock(&count_lock); 36757c478bd9Sstevel@tonic-gate (void) sleep(1); 36767c478bd9Sstevel@tonic-gate (void) mutex_lock(&count_lock); 36777c478bd9Sstevel@tonic-gate 36787c478bd9Sstevel@tonic-gate /* shorten the delay if we are idle */ 36797c478bd9Sstevel@tonic-gate if (inst_count == 0) { 36807c478bd9Sstevel@tonic-gate idle++; 36817c478bd9Sstevel@tonic-gate if (idle > MAX_IDLE_DELAY) { 36827c478bd9Sstevel@tonic-gate break; 36837c478bd9Sstevel@tonic-gate } 36847c478bd9Sstevel@tonic-gate } else { 36857c478bd9Sstevel@tonic-gate inst_count = idle = 0; 36867c478bd9Sstevel@tonic-gate } 36877c478bd9Sstevel@tonic-gate } 36887c478bd9Sstevel@tonic-gate 36897c478bd9Sstevel@tonic-gate (void) mutex_unlock(&count_lock); 36907c478bd9Sstevel@tonic-gate 36917c478bd9Sstevel@tonic-gate flush_path_to_inst(); 36927c478bd9Sstevel@tonic-gate } 36937c478bd9Sstevel@tonic-gate } 36947c478bd9Sstevel@tonic-gate 36957c478bd9Sstevel@tonic-gate /* 36967c478bd9Sstevel@tonic-gate * Helper function for flush_path_to_inst() below; this routine calls the 36977c478bd9Sstevel@tonic-gate * inst_sync syscall to flush the path_to_inst database to the given file. 36987c478bd9Sstevel@tonic-gate */ 36997c478bd9Sstevel@tonic-gate static int 37000a653502Swroche do_inst_sync(char *filename, char *instfilename) 37017c478bd9Sstevel@tonic-gate { 37027c478bd9Sstevel@tonic-gate void (*sigsaved)(int); 37030a653502Swroche int err = 0, flags = INST_SYNC_IF_REQUIRED; 37040a653502Swroche struct stat sb; 37050a653502Swroche 37060a653502Swroche if (stat(instfilename, &sb) == -1 && errno == ENOENT) 37070a653502Swroche flags = INST_SYNC_ALWAYS; 37087c478bd9Sstevel@tonic-gate 37097c478bd9Sstevel@tonic-gate vprint(INSTSYNC_MID, "do_inst_sync: about to flush %s\n", filename); 37107c478bd9Sstevel@tonic-gate sigsaved = sigset(SIGSYS, SIG_IGN); 37110a653502Swroche if (inst_sync(filename, flags) == -1) 37127c478bd9Sstevel@tonic-gate err = errno; 37137c478bd9Sstevel@tonic-gate (void) sigset(SIGSYS, sigsaved); 37147c478bd9Sstevel@tonic-gate 37157c478bd9Sstevel@tonic-gate switch (err) { 37167c478bd9Sstevel@tonic-gate case 0: 37177c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 37187c478bd9Sstevel@tonic-gate case EALREADY: /* no-op, path_to_inst already up to date */ 37197c478bd9Sstevel@tonic-gate return (EALREADY); 37207c478bd9Sstevel@tonic-gate case ENOSYS: 37217c478bd9Sstevel@tonic-gate err_print(CANT_LOAD_SYSCALL); 37227c478bd9Sstevel@tonic-gate break; 37237c478bd9Sstevel@tonic-gate case EPERM: 37247c478bd9Sstevel@tonic-gate err_print(SUPER_TO_SYNC); 37257c478bd9Sstevel@tonic-gate break; 37267c478bd9Sstevel@tonic-gate default: 37277c478bd9Sstevel@tonic-gate err_print(INSTSYNC_FAILED, filename, strerror(err)); 37287c478bd9Sstevel@tonic-gate break; 37297c478bd9Sstevel@tonic-gate } 37307c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 37317c478bd9Sstevel@tonic-gate } 37327c478bd9Sstevel@tonic-gate 37337c478bd9Sstevel@tonic-gate /* 37347c478bd9Sstevel@tonic-gate * Flush the kernel's path_to_inst database to /etc/path_to_inst. To do so 37357c478bd9Sstevel@tonic-gate * safely, the database is flushed to a temporary file, then moved into place. 37367c478bd9Sstevel@tonic-gate * 37377c478bd9Sstevel@tonic-gate * The following files are used during this process: 37387c478bd9Sstevel@tonic-gate * /etc/path_to_inst: The path_to_inst file 37397c478bd9Sstevel@tonic-gate * /etc/path_to_inst.<pid>: Contains data flushed from the kernel 37407c478bd9Sstevel@tonic-gate * /etc/path_to_inst.old: The backup file 37417c478bd9Sstevel@tonic-gate * /etc/path_to_inst.old.<pid>: Temp file for creating backup 37427c478bd9Sstevel@tonic-gate * 37437c478bd9Sstevel@tonic-gate */ 37447c478bd9Sstevel@tonic-gate static void 37457c478bd9Sstevel@tonic-gate flush_path_to_inst(void) 37467c478bd9Sstevel@tonic-gate { 37477c478bd9Sstevel@tonic-gate char *new_inst_file = NULL; 37487c478bd9Sstevel@tonic-gate char *old_inst_file = NULL; 37497c478bd9Sstevel@tonic-gate char *old_inst_file_npid = NULL; 37507c478bd9Sstevel@tonic-gate FILE *inst_file_fp = NULL; 37517c478bd9Sstevel@tonic-gate FILE *old_inst_file_fp = NULL; 37527c478bd9Sstevel@tonic-gate struct stat sb; 37537c478bd9Sstevel@tonic-gate int err = 0; 37547c478bd9Sstevel@tonic-gate int c; 37557c478bd9Sstevel@tonic-gate int inst_strlen; 37567c478bd9Sstevel@tonic-gate 37577c478bd9Sstevel@tonic-gate vprint(PATH2INST_MID, "flush_path_to_inst: %s\n", 37587c478bd9Sstevel@tonic-gate (flush_path_to_inst_enable == TRUE) ? "ENABLED" : "DISABLED"); 37597c478bd9Sstevel@tonic-gate 37607c478bd9Sstevel@tonic-gate if (flush_path_to_inst_enable == FALSE) { 37617c478bd9Sstevel@tonic-gate return; 37627c478bd9Sstevel@tonic-gate } 37637c478bd9Sstevel@tonic-gate 37647c478bd9Sstevel@tonic-gate inst_strlen = strlen(inst_file); 37657c478bd9Sstevel@tonic-gate new_inst_file = s_malloc(inst_strlen + PID_STR_LEN + 2); 37667c478bd9Sstevel@tonic-gate old_inst_file = s_malloc(inst_strlen + PID_STR_LEN + 6); 37677c478bd9Sstevel@tonic-gate old_inst_file_npid = s_malloc(inst_strlen + 37687c478bd9Sstevel@tonic-gate sizeof (INSTANCE_FILE_SUFFIX)); 37697c478bd9Sstevel@tonic-gate 37707c478bd9Sstevel@tonic-gate (void) snprintf(new_inst_file, inst_strlen + PID_STR_LEN + 2, 37710a653502Swroche "%s.%ld", inst_file, getpid()); 37727c478bd9Sstevel@tonic-gate 37737c478bd9Sstevel@tonic-gate if (stat(new_inst_file, &sb) == 0) { 37747c478bd9Sstevel@tonic-gate s_unlink(new_inst_file); 37757c478bd9Sstevel@tonic-gate } 37767c478bd9Sstevel@tonic-gate 37770a653502Swroche err = do_inst_sync(new_inst_file, inst_file); 37780a653502Swroche if (err != DEVFSADM_SUCCESS) { 37797c478bd9Sstevel@tonic-gate goto out; 37807c478bd9Sstevel@tonic-gate /*NOTREACHED*/ 37817c478bd9Sstevel@tonic-gate } 37827c478bd9Sstevel@tonic-gate 37837c478bd9Sstevel@tonic-gate /* 37847c478bd9Sstevel@tonic-gate * Now we deal with the somewhat tricky updating and renaming 37857c478bd9Sstevel@tonic-gate * of this critical piece of kernel state. 37867c478bd9Sstevel@tonic-gate */ 37877c478bd9Sstevel@tonic-gate 37887c478bd9Sstevel@tonic-gate /* 37897c478bd9Sstevel@tonic-gate * Copy the current instance file into a temporary file. 37907c478bd9Sstevel@tonic-gate * Then rename the temporary file into the backup (.old) 37917c478bd9Sstevel@tonic-gate * file and rename the newly flushed kernel data into 37927c478bd9Sstevel@tonic-gate * the instance file. 37937c478bd9Sstevel@tonic-gate * Of course if 'inst_file' doesn't exist, there's much 37947c478bd9Sstevel@tonic-gate * less for us to do .. tee hee. 37957c478bd9Sstevel@tonic-gate */ 37967c478bd9Sstevel@tonic-gate if ((inst_file_fp = fopen(inst_file, "r")) == NULL) { 37977c478bd9Sstevel@tonic-gate /* 37987c478bd9Sstevel@tonic-gate * No such file. Rename the new onto the old 37997c478bd9Sstevel@tonic-gate */ 38007c478bd9Sstevel@tonic-gate if ((err = rename(new_inst_file, inst_file)) != 0) 38017c478bd9Sstevel@tonic-gate err_print(RENAME_FAILED, inst_file, strerror(errno)); 38027c478bd9Sstevel@tonic-gate goto out; 38037c478bd9Sstevel@tonic-gate /*NOTREACHED*/ 38047c478bd9Sstevel@tonic-gate } 38057c478bd9Sstevel@tonic-gate 38067c478bd9Sstevel@tonic-gate (void) snprintf(old_inst_file, inst_strlen + PID_STR_LEN + 6, 38070a653502Swroche "%s.old.%ld", inst_file, getpid()); 38087c478bd9Sstevel@tonic-gate 38097c478bd9Sstevel@tonic-gate if (stat(old_inst_file, &sb) == 0) { 38107c478bd9Sstevel@tonic-gate s_unlink(old_inst_file); 38117c478bd9Sstevel@tonic-gate } 38127c478bd9Sstevel@tonic-gate 38137c478bd9Sstevel@tonic-gate if ((old_inst_file_fp = fopen(old_inst_file, "w")) == NULL) { 38147c478bd9Sstevel@tonic-gate /* 38157c478bd9Sstevel@tonic-gate * Can't open the 'old_inst_file' file for writing. 38167c478bd9Sstevel@tonic-gate * This is somewhat strange given that the syscall 38177c478bd9Sstevel@tonic-gate * just succeeded to write a file out.. hmm.. maybe 38187c478bd9Sstevel@tonic-gate * the fs just filled up or something nasty. 38197c478bd9Sstevel@tonic-gate * 38207c478bd9Sstevel@tonic-gate * Anyway, abort what we've done so far. 38217c478bd9Sstevel@tonic-gate */ 38227c478bd9Sstevel@tonic-gate err_print(CANT_UPDATE, old_inst_file); 38237c478bd9Sstevel@tonic-gate err = DEVFSADM_FAILURE; 38247c478bd9Sstevel@tonic-gate goto out; 38257c478bd9Sstevel@tonic-gate /*NOTREACHED*/ 38267c478bd9Sstevel@tonic-gate } 38277c478bd9Sstevel@tonic-gate 38287c478bd9Sstevel@tonic-gate /* 38297c478bd9Sstevel@tonic-gate * Copy current instance file into the temporary file 38307c478bd9Sstevel@tonic-gate */ 38317c478bd9Sstevel@tonic-gate err = 0; 38327c478bd9Sstevel@tonic-gate while ((c = getc(inst_file_fp)) != EOF) { 38337c478bd9Sstevel@tonic-gate if ((err = putc(c, old_inst_file_fp)) == EOF) { 38347c478bd9Sstevel@tonic-gate break; 38357c478bd9Sstevel@tonic-gate } 38367c478bd9Sstevel@tonic-gate } 38377c478bd9Sstevel@tonic-gate 38387c478bd9Sstevel@tonic-gate if (fclose(old_inst_file_fp) == EOF || err == EOF) { 38397c478bd9Sstevel@tonic-gate vprint(INFO_MID, CANT_UPDATE, old_inst_file); 38407c478bd9Sstevel@tonic-gate err = DEVFSADM_FAILURE; 38417c478bd9Sstevel@tonic-gate goto out; 38427c478bd9Sstevel@tonic-gate /* NOTREACHED */ 38437c478bd9Sstevel@tonic-gate } 38447c478bd9Sstevel@tonic-gate 38457c478bd9Sstevel@tonic-gate /* 38467c478bd9Sstevel@tonic-gate * Set permissions to be the same on the backup as 38477c478bd9Sstevel@tonic-gate * /etc/path_to_inst. 38487c478bd9Sstevel@tonic-gate */ 38497c478bd9Sstevel@tonic-gate (void) chmod(old_inst_file, 0444); 38507c478bd9Sstevel@tonic-gate 38517c478bd9Sstevel@tonic-gate /* 38527c478bd9Sstevel@tonic-gate * So far, everything we've done is more or less reversible. 38537c478bd9Sstevel@tonic-gate * But now we're going to commit ourselves. 38547c478bd9Sstevel@tonic-gate */ 38557c478bd9Sstevel@tonic-gate 38567c478bd9Sstevel@tonic-gate (void) snprintf(old_inst_file_npid, 38577c478bd9Sstevel@tonic-gate inst_strlen + sizeof (INSTANCE_FILE_SUFFIX), 38587c478bd9Sstevel@tonic-gate "%s%s", inst_file, INSTANCE_FILE_SUFFIX); 38597c478bd9Sstevel@tonic-gate 38607c478bd9Sstevel@tonic-gate if ((err = rename(old_inst_file, old_inst_file_npid)) != 0) { 38617c478bd9Sstevel@tonic-gate err_print(RENAME_FAILED, old_inst_file_npid, 38620a653502Swroche strerror(errno)); 38637c478bd9Sstevel@tonic-gate } else if ((err = rename(new_inst_file, inst_file)) != 0) { 38647c478bd9Sstevel@tonic-gate err_print(RENAME_FAILED, inst_file, strerror(errno)); 38657c478bd9Sstevel@tonic-gate } 38667c478bd9Sstevel@tonic-gate 38677c478bd9Sstevel@tonic-gate out: 38687c478bd9Sstevel@tonic-gate if (inst_file_fp != NULL) { 38697c478bd9Sstevel@tonic-gate if (fclose(inst_file_fp) == EOF) { 38707c478bd9Sstevel@tonic-gate err_print(FCLOSE_FAILED, inst_file, strerror(errno)); 38717c478bd9Sstevel@tonic-gate } 38727c478bd9Sstevel@tonic-gate } 38737c478bd9Sstevel@tonic-gate 38747c478bd9Sstevel@tonic-gate if (stat(new_inst_file, &sb) == 0) { 38757c478bd9Sstevel@tonic-gate s_unlink(new_inst_file); 38767c478bd9Sstevel@tonic-gate } 38777c478bd9Sstevel@tonic-gate free(new_inst_file); 38787c478bd9Sstevel@tonic-gate 38797c478bd9Sstevel@tonic-gate if (stat(old_inst_file, &sb) == 0) { 38807c478bd9Sstevel@tonic-gate s_unlink(old_inst_file); 38817c478bd9Sstevel@tonic-gate } 38827c478bd9Sstevel@tonic-gate free(old_inst_file); 38837c478bd9Sstevel@tonic-gate 38847c478bd9Sstevel@tonic-gate free(old_inst_file_npid); 38857c478bd9Sstevel@tonic-gate 38867c478bd9Sstevel@tonic-gate if (err != 0 && err != EALREADY) { 38877c478bd9Sstevel@tonic-gate err_print(FAILED_TO_UPDATE, inst_file); 38887c478bd9Sstevel@tonic-gate } 38897c478bd9Sstevel@tonic-gate } 38907c478bd9Sstevel@tonic-gate 38917c478bd9Sstevel@tonic-gate /* 38927c478bd9Sstevel@tonic-gate * detach from tty. For daemon mode. 38937c478bd9Sstevel@tonic-gate */ 38947c478bd9Sstevel@tonic-gate void 38957c478bd9Sstevel@tonic-gate detachfromtty() 38967c478bd9Sstevel@tonic-gate { 38977c478bd9Sstevel@tonic-gate (void) setsid(); 38987c478bd9Sstevel@tonic-gate if (DEVFSADM_DEBUG_ON == TRUE) { 38997c478bd9Sstevel@tonic-gate return; 39007c478bd9Sstevel@tonic-gate } 39017c478bd9Sstevel@tonic-gate 39027c478bd9Sstevel@tonic-gate (void) close(0); 39037c478bd9Sstevel@tonic-gate (void) close(1); 39047c478bd9Sstevel@tonic-gate (void) close(2); 39057c478bd9Sstevel@tonic-gate (void) open("/dev/null", O_RDWR, 0); 39067c478bd9Sstevel@tonic-gate (void) dup(0); 39077c478bd9Sstevel@tonic-gate (void) dup(0); 39087c478bd9Sstevel@tonic-gate openlog(DEVFSADMD, LOG_PID, LOG_DAEMON); 39097c478bd9Sstevel@tonic-gate (void) setlogmask(LOG_UPTO(LOG_INFO)); 39107c478bd9Sstevel@tonic-gate logflag = TRUE; 39117c478bd9Sstevel@tonic-gate } 39127c478bd9Sstevel@tonic-gate 39137c478bd9Sstevel@tonic-gate /* 39147c478bd9Sstevel@tonic-gate * Use an advisory lock to synchronize updates to /dev. If the lock is 39157c478bd9Sstevel@tonic-gate * held by another process, block in the fcntl() system call until that 39167c478bd9Sstevel@tonic-gate * process drops the lock or exits. The lock file itself is 39177c478bd9Sstevel@tonic-gate * DEV_LOCK_FILE. The process id of the current and last process owning 39187c478bd9Sstevel@tonic-gate * the lock is kept in the lock file. After acquiring the lock, read the 39197c478bd9Sstevel@tonic-gate * process id and return it. It is the process ID which last owned the 39207c478bd9Sstevel@tonic-gate * lock, and will be used to determine if caches need to be flushed. 39217c478bd9Sstevel@tonic-gate * 39227c478bd9Sstevel@tonic-gate * NOTE: if the devlink database is held open by the caller, it may 39237c478bd9Sstevel@tonic-gate * be closed by this routine. This is to enforce the following lock ordering: 39247c478bd9Sstevel@tonic-gate * 1) /dev lock 2) database open 39257c478bd9Sstevel@tonic-gate */ 39267c478bd9Sstevel@tonic-gate pid_t 39277c478bd9Sstevel@tonic-gate enter_dev_lock() 39287c478bd9Sstevel@tonic-gate { 39297c478bd9Sstevel@tonic-gate struct flock lock; 39307c478bd9Sstevel@tonic-gate int n; 39317c478bd9Sstevel@tonic-gate pid_t pid; 39327c478bd9Sstevel@tonic-gate pid_t last_owner_pid; 39337c478bd9Sstevel@tonic-gate 39347c478bd9Sstevel@tonic-gate if (file_mods == FALSE) { 39357c478bd9Sstevel@tonic-gate return (0); 39367c478bd9Sstevel@tonic-gate } 39377c478bd9Sstevel@tonic-gate 39387c478bd9Sstevel@tonic-gate (void) snprintf(dev_lockfile, sizeof (dev_lockfile), 3939facf4a8dSllai "%s/%s", etc_dev_dir, DEV_LOCK_FILE); 39407c478bd9Sstevel@tonic-gate 39417c478bd9Sstevel@tonic-gate vprint(LOCK_MID, "enter_dev_lock: lock file %s\n", dev_lockfile); 39427c478bd9Sstevel@tonic-gate 39437c478bd9Sstevel@tonic-gate dev_lock_fd = open(dev_lockfile, O_CREAT|O_RDWR, 0644); 39447c478bd9Sstevel@tonic-gate if (dev_lock_fd < 0) { 39457c478bd9Sstevel@tonic-gate err_print(OPEN_FAILED, dev_lockfile, strerror(errno)); 39467c478bd9Sstevel@tonic-gate devfsadm_exit(1); 3947537714daSvikram /*NOTREACHED*/ 39487c478bd9Sstevel@tonic-gate } 39497c478bd9Sstevel@tonic-gate 39507c478bd9Sstevel@tonic-gate lock.l_type = F_WRLCK; 39517c478bd9Sstevel@tonic-gate lock.l_whence = SEEK_SET; 39527c478bd9Sstevel@tonic-gate lock.l_start = 0; 39537c478bd9Sstevel@tonic-gate lock.l_len = 0; 39547c478bd9Sstevel@tonic-gate 39557c478bd9Sstevel@tonic-gate /* try for the lock, but don't wait */ 39567c478bd9Sstevel@tonic-gate if (fcntl(dev_lock_fd, F_SETLK, &lock) == -1) { 39577c478bd9Sstevel@tonic-gate if ((errno == EACCES) || (errno == EAGAIN)) { 39587c478bd9Sstevel@tonic-gate pid = 0; 39597c478bd9Sstevel@tonic-gate n = read(dev_lock_fd, &pid, sizeof (pid_t)); 39607c478bd9Sstevel@tonic-gate vprint(LOCK_MID, "waiting for PID %d to complete\n", 39610a653502Swroche (int)pid); 39627c478bd9Sstevel@tonic-gate if (lseek(dev_lock_fd, 0, SEEK_SET) == (off_t)-1) { 39637c478bd9Sstevel@tonic-gate err_print(LSEEK_FAILED, dev_lockfile, 39640a653502Swroche strerror(errno)); 39657c478bd9Sstevel@tonic-gate devfsadm_exit(1); 3966537714daSvikram /*NOTREACHED*/ 39677c478bd9Sstevel@tonic-gate } 39687c478bd9Sstevel@tonic-gate /* 39697c478bd9Sstevel@tonic-gate * wait for the dev lock. If we have the database open, 39707c478bd9Sstevel@tonic-gate * close it first - the order of lock acquisition should 39717c478bd9Sstevel@tonic-gate * always be: 1) dev_lock 2) database 39727c478bd9Sstevel@tonic-gate * This is to prevent deadlocks with any locks the 39737c478bd9Sstevel@tonic-gate * database code may hold. 39747c478bd9Sstevel@tonic-gate */ 39757c478bd9Sstevel@tonic-gate (void) di_devlink_close(&devlink_cache, 0); 3976f05faa4eSjacobs 3977f05faa4eSjacobs /* send any sysevents that were queued up. */ 3978f05faa4eSjacobs process_syseventq(); 3979f05faa4eSjacobs 39807c478bd9Sstevel@tonic-gate if (fcntl(dev_lock_fd, F_SETLKW, &lock) == -1) { 39817c478bd9Sstevel@tonic-gate err_print(LOCK_FAILED, dev_lockfile, 39820a653502Swroche strerror(errno)); 39837c478bd9Sstevel@tonic-gate devfsadm_exit(1); 3984537714daSvikram /*NOTREACHED*/ 39857c478bd9Sstevel@tonic-gate } 39867c478bd9Sstevel@tonic-gate } 39877c478bd9Sstevel@tonic-gate } 39887c478bd9Sstevel@tonic-gate 39897c478bd9Sstevel@tonic-gate hold_dev_lock = TRUE; 39907c478bd9Sstevel@tonic-gate pid = 0; 39917c478bd9Sstevel@tonic-gate n = read(dev_lock_fd, &pid, sizeof (pid_t)); 39927c478bd9Sstevel@tonic-gate if (n == sizeof (pid_t) && pid == getpid()) { 39937c478bd9Sstevel@tonic-gate return (pid); 39947c478bd9Sstevel@tonic-gate } 39957c478bd9Sstevel@tonic-gate 39967c478bd9Sstevel@tonic-gate last_owner_pid = pid; 39977c478bd9Sstevel@tonic-gate 39987c478bd9Sstevel@tonic-gate if (lseek(dev_lock_fd, 0, SEEK_SET) == (off_t)-1) { 39997c478bd9Sstevel@tonic-gate err_print(LSEEK_FAILED, dev_lockfile, strerror(errno)); 40007c478bd9Sstevel@tonic-gate devfsadm_exit(1); 4001537714daSvikram /*NOTREACHED*/ 40027c478bd9Sstevel@tonic-gate } 40037c478bd9Sstevel@tonic-gate pid = getpid(); 40047c478bd9Sstevel@tonic-gate n = write(dev_lock_fd, &pid, sizeof (pid_t)); 40057c478bd9Sstevel@tonic-gate if (n != sizeof (pid_t)) { 40067c478bd9Sstevel@tonic-gate err_print(WRITE_FAILED, dev_lockfile, strerror(errno)); 40077c478bd9Sstevel@tonic-gate devfsadm_exit(1); 4008537714daSvikram /*NOTREACHED*/ 40097c478bd9Sstevel@tonic-gate } 40107c478bd9Sstevel@tonic-gate 40117c478bd9Sstevel@tonic-gate return (last_owner_pid); 40127c478bd9Sstevel@tonic-gate } 40137c478bd9Sstevel@tonic-gate 40147c478bd9Sstevel@tonic-gate /* 40157c478bd9Sstevel@tonic-gate * Drop the advisory /dev lock, close lock file. Close and re-open the 40167c478bd9Sstevel@tonic-gate * file every time so to ensure a resync if for some reason the lock file 40177c478bd9Sstevel@tonic-gate * gets removed. 40187c478bd9Sstevel@tonic-gate */ 40197c478bd9Sstevel@tonic-gate void 4020537714daSvikram exit_dev_lock(int exiting) 40217c478bd9Sstevel@tonic-gate { 40227c478bd9Sstevel@tonic-gate struct flock unlock; 40237c478bd9Sstevel@tonic-gate 40247c478bd9Sstevel@tonic-gate if (hold_dev_lock == FALSE) { 40257c478bd9Sstevel@tonic-gate return; 40267c478bd9Sstevel@tonic-gate } 40277c478bd9Sstevel@tonic-gate 4028537714daSvikram vprint(LOCK_MID, "exit_dev_lock: lock file %s, exiting = %d\n", 4029537714daSvikram dev_lockfile, exiting); 40307c478bd9Sstevel@tonic-gate 40317c478bd9Sstevel@tonic-gate unlock.l_type = F_UNLCK; 40327c478bd9Sstevel@tonic-gate unlock.l_whence = SEEK_SET; 40337c478bd9Sstevel@tonic-gate unlock.l_start = 0; 40347c478bd9Sstevel@tonic-gate unlock.l_len = 0; 40357c478bd9Sstevel@tonic-gate 40367c478bd9Sstevel@tonic-gate if (fcntl(dev_lock_fd, F_SETLK, &unlock) == -1) { 40377c478bd9Sstevel@tonic-gate err_print(UNLOCK_FAILED, dev_lockfile, strerror(errno)); 40387c478bd9Sstevel@tonic-gate } 40397c478bd9Sstevel@tonic-gate 40407c478bd9Sstevel@tonic-gate hold_dev_lock = FALSE; 40417c478bd9Sstevel@tonic-gate 40427c478bd9Sstevel@tonic-gate if (close(dev_lock_fd) == -1) { 40437c478bd9Sstevel@tonic-gate err_print(CLOSE_FAILED, dev_lockfile, strerror(errno)); 4044537714daSvikram if (!exiting) 4045537714daSvikram devfsadm_exit(1); 4046537714daSvikram /*NOTREACHED*/ 40477c478bd9Sstevel@tonic-gate } 40487c478bd9Sstevel@tonic-gate } 40497c478bd9Sstevel@tonic-gate 40507c478bd9Sstevel@tonic-gate /* 40517c478bd9Sstevel@tonic-gate * 40527c478bd9Sstevel@tonic-gate * Use an advisory lock to ensure that only one daemon process is active 40537c478bd9Sstevel@tonic-gate * in the system at any point in time. If the lock is held by another 40547c478bd9Sstevel@tonic-gate * process, do not block but return the pid owner of the lock to the 40557c478bd9Sstevel@tonic-gate * caller immediately. The lock is cleared if the holding daemon process 40567c478bd9Sstevel@tonic-gate * exits for any reason even if the lock file remains, so the daemon can 40577c478bd9Sstevel@tonic-gate * be restarted if necessary. The lock file is DAEMON_LOCK_FILE. 40587c478bd9Sstevel@tonic-gate */ 40597c478bd9Sstevel@tonic-gate pid_t 40607c478bd9Sstevel@tonic-gate enter_daemon_lock(void) 40617c478bd9Sstevel@tonic-gate { 40627c478bd9Sstevel@tonic-gate struct flock lock; 40637c478bd9Sstevel@tonic-gate 40647c478bd9Sstevel@tonic-gate (void) snprintf(daemon_lockfile, sizeof (daemon_lockfile), 4065facf4a8dSllai "%s/%s", etc_dev_dir, DAEMON_LOCK_FILE); 40667c478bd9Sstevel@tonic-gate 40677c478bd9Sstevel@tonic-gate vprint(LOCK_MID, "enter_daemon_lock: lock file %s\n", daemon_lockfile); 40687c478bd9Sstevel@tonic-gate 40697c478bd9Sstevel@tonic-gate daemon_lock_fd = open(daemon_lockfile, O_CREAT|O_RDWR, 0644); 40707c478bd9Sstevel@tonic-gate if (daemon_lock_fd < 0) { 40717c478bd9Sstevel@tonic-gate err_print(OPEN_FAILED, daemon_lockfile, strerror(errno)); 40727c478bd9Sstevel@tonic-gate devfsadm_exit(1); 4073537714daSvikram /*NOTREACHED*/ 40747c478bd9Sstevel@tonic-gate } 40757c478bd9Sstevel@tonic-gate 40767c478bd9Sstevel@tonic-gate lock.l_type = F_WRLCK; 40777c478bd9Sstevel@tonic-gate lock.l_whence = SEEK_SET; 40787c478bd9Sstevel@tonic-gate lock.l_start = 0; 40797c478bd9Sstevel@tonic-gate lock.l_len = 0; 40807c478bd9Sstevel@tonic-gate 40817c478bd9Sstevel@tonic-gate if (fcntl(daemon_lock_fd, F_SETLK, &lock) == -1) { 40827c478bd9Sstevel@tonic-gate 40837c478bd9Sstevel@tonic-gate if (errno == EAGAIN || errno == EDEADLK) { 40847c478bd9Sstevel@tonic-gate if (fcntl(daemon_lock_fd, F_GETLK, &lock) == -1) { 40857c478bd9Sstevel@tonic-gate err_print(LOCK_FAILED, daemon_lockfile, 40860a653502Swroche strerror(errno)); 40877c478bd9Sstevel@tonic-gate devfsadm_exit(1); 4088537714daSvikram /*NOTREACHED*/ 40897c478bd9Sstevel@tonic-gate } 40907c478bd9Sstevel@tonic-gate return (lock.l_pid); 40917c478bd9Sstevel@tonic-gate } 40927c478bd9Sstevel@tonic-gate } 40937c478bd9Sstevel@tonic-gate hold_daemon_lock = TRUE; 40947c478bd9Sstevel@tonic-gate return (getpid()); 40957c478bd9Sstevel@tonic-gate } 40967c478bd9Sstevel@tonic-gate 40977c478bd9Sstevel@tonic-gate /* 40987c478bd9Sstevel@tonic-gate * Drop the advisory daemon lock, close lock file 40997c478bd9Sstevel@tonic-gate */ 41007c478bd9Sstevel@tonic-gate void 4101537714daSvikram exit_daemon_lock(int exiting) 41027c478bd9Sstevel@tonic-gate { 41037c478bd9Sstevel@tonic-gate struct flock lock; 41047c478bd9Sstevel@tonic-gate 41057c478bd9Sstevel@tonic-gate if (hold_daemon_lock == FALSE) { 41067c478bd9Sstevel@tonic-gate return; 41077c478bd9Sstevel@tonic-gate } 41087c478bd9Sstevel@tonic-gate 4109537714daSvikram vprint(LOCK_MID, "exit_daemon_lock: lock file %s, exiting = %d\n", 4110537714daSvikram daemon_lockfile, exiting); 41117c478bd9Sstevel@tonic-gate 41127c478bd9Sstevel@tonic-gate lock.l_type = F_UNLCK; 41137c478bd9Sstevel@tonic-gate lock.l_whence = SEEK_SET; 41147c478bd9Sstevel@tonic-gate lock.l_start = 0; 41157c478bd9Sstevel@tonic-gate lock.l_len = 0; 41167c478bd9Sstevel@tonic-gate 41177c478bd9Sstevel@tonic-gate if (fcntl(daemon_lock_fd, F_SETLK, &lock) == -1) { 41187c478bd9Sstevel@tonic-gate err_print(UNLOCK_FAILED, daemon_lockfile, strerror(errno)); 41197c478bd9Sstevel@tonic-gate } 41207c478bd9Sstevel@tonic-gate 41217c478bd9Sstevel@tonic-gate if (close(daemon_lock_fd) == -1) { 41227c478bd9Sstevel@tonic-gate err_print(CLOSE_FAILED, daemon_lockfile, strerror(errno)); 4123537714daSvikram if (!exiting) 4124537714daSvikram devfsadm_exit(1); 4125537714daSvikram /*NOTREACHED*/ 41267c478bd9Sstevel@tonic-gate } 41277c478bd9Sstevel@tonic-gate } 41287c478bd9Sstevel@tonic-gate 41297c478bd9Sstevel@tonic-gate /* 41307c478bd9Sstevel@tonic-gate * Called to removed danging nodes in two different modes: RM_PRE, RM_POST. 41317c478bd9Sstevel@tonic-gate * RM_PRE mode is called before processing the entire devinfo tree, and RM_POST 41327c478bd9Sstevel@tonic-gate * is called after processing the entire devinfo tree. 41337c478bd9Sstevel@tonic-gate */ 41347c478bd9Sstevel@tonic-gate static void 41357c478bd9Sstevel@tonic-gate pre_and_post_cleanup(int flags) 41367c478bd9Sstevel@tonic-gate { 41377c478bd9Sstevel@tonic-gate remove_list_t *rm; 41387c478bd9Sstevel@tonic-gate recurse_dev_t rd; 41397c478bd9Sstevel@tonic-gate cleanup_data_t cleanup_data; 41407c478bd9Sstevel@tonic-gate char *fcn = "pre_and_post_cleanup: "; 41417c478bd9Sstevel@tonic-gate 41427c478bd9Sstevel@tonic-gate if (build_dev == FALSE) 41437c478bd9Sstevel@tonic-gate return; 41447c478bd9Sstevel@tonic-gate 41457c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "attempting %s-cleanup\n", 41467c478bd9Sstevel@tonic-gate flags == RM_PRE ? "pre" : "post"); 41477c478bd9Sstevel@tonic-gate vprint(REMOVE_MID, "%sflags = %d\n", fcn, flags); 41487c478bd9Sstevel@tonic-gate 41497c478bd9Sstevel@tonic-gate /* 41507c478bd9Sstevel@tonic-gate * the generic function recurse_dev_re is shared among different 41517c478bd9Sstevel@tonic-gate * functions, so set the method and data that it should use for 41527c478bd9Sstevel@tonic-gate * matches. 41537c478bd9Sstevel@tonic-gate */ 41547c478bd9Sstevel@tonic-gate rd.fcn = matching_dev; 41557c478bd9Sstevel@tonic-gate rd.data = (void *)&cleanup_data; 41567c478bd9Sstevel@tonic-gate cleanup_data.flags = flags; 41577c478bd9Sstevel@tonic-gate 4158aa646b9dSvikram (void) mutex_lock(&nfp_mutex); 4159aa646b9dSvikram nfphash_create(); 4160aa646b9dSvikram 41617c478bd9Sstevel@tonic-gate for (rm = remove_head; rm != NULL; rm = rm->next) { 41627c478bd9Sstevel@tonic-gate if ((flags & rm->remove->flags) == flags) { 41637c478bd9Sstevel@tonic-gate cleanup_data.rm = rm; 41647c478bd9Sstevel@tonic-gate /* 41657c478bd9Sstevel@tonic-gate * If reached this point, RM_PRE or RM_POST cleanup is 41667c478bd9Sstevel@tonic-gate * desired. clean_ok() decides whether to clean 41677c478bd9Sstevel@tonic-gate * under the given circumstances. 41687c478bd9Sstevel@tonic-gate */ 41697c478bd9Sstevel@tonic-gate vprint(REMOVE_MID, "%scleanup: PRE or POST\n", fcn); 41707c478bd9Sstevel@tonic-gate if (clean_ok(rm->remove) == DEVFSADM_SUCCESS) { 41717c478bd9Sstevel@tonic-gate vprint(REMOVE_MID, "cleanup: cleanup OK\n"); 41720a653502Swroche recurse_dev_re(dev_dir, 41730a653502Swroche rm->remove->dev_dirs_re, &rd); 41747c478bd9Sstevel@tonic-gate } 41757c478bd9Sstevel@tonic-gate } 41767c478bd9Sstevel@tonic-gate } 4177aa646b9dSvikram nfphash_destroy(); 4178aa646b9dSvikram (void) mutex_unlock(&nfp_mutex); 41797c478bd9Sstevel@tonic-gate } 41807c478bd9Sstevel@tonic-gate 41817c478bd9Sstevel@tonic-gate /* 41827c478bd9Sstevel@tonic-gate * clean_ok() determines whether cleanup should be done according 41837c478bd9Sstevel@tonic-gate * to the following matrix: 41847c478bd9Sstevel@tonic-gate * 41857c478bd9Sstevel@tonic-gate * command line arguments RM_PRE RM_POST RM_PRE && RM_POST && 41867c478bd9Sstevel@tonic-gate * RM_ALWAYS RM_ALWAYS 41877c478bd9Sstevel@tonic-gate * ---------------------- ------ ----- --------- ---------- 41887c478bd9Sstevel@tonic-gate * 41897c478bd9Sstevel@tonic-gate * <neither -c nor -C> - - pre-clean post-clean 41907c478bd9Sstevel@tonic-gate * 41917c478bd9Sstevel@tonic-gate * -C pre-clean post-clean pre-clean post-clean 41927c478bd9Sstevel@tonic-gate * 41937c478bd9Sstevel@tonic-gate * -C -c class pre-clean post-clean pre-clean post-clean 41947c478bd9Sstevel@tonic-gate * if class if class if class if class 41957c478bd9Sstevel@tonic-gate * matches matches matches matches 41967c478bd9Sstevel@tonic-gate * 41977c478bd9Sstevel@tonic-gate * -c class - - pre-clean post-clean 41987c478bd9Sstevel@tonic-gate * if class if class 41997c478bd9Sstevel@tonic-gate * matches matches 42007c478bd9Sstevel@tonic-gate * 42017c478bd9Sstevel@tonic-gate */ 42027c478bd9Sstevel@tonic-gate static int 4203aa646b9dSvikram clean_ok(devfsadm_remove_V1_t *remove) 42047c478bd9Sstevel@tonic-gate { 42057c478bd9Sstevel@tonic-gate int i; 42067c478bd9Sstevel@tonic-gate 42077c478bd9Sstevel@tonic-gate if (single_drv == TRUE) { 42087c478bd9Sstevel@tonic-gate /* no cleanup at all when using -i option */ 42097c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 42107c478bd9Sstevel@tonic-gate } 42117c478bd9Sstevel@tonic-gate 42127c478bd9Sstevel@tonic-gate /* 42137c478bd9Sstevel@tonic-gate * no cleanup if drivers are not loaded. We make an exception 42147c478bd9Sstevel@tonic-gate * for the "disks" program however, since disks has a public 42157c478bd9Sstevel@tonic-gate * cleanup flag (-C) and disk drivers are usually never 42167c478bd9Sstevel@tonic-gate * unloaded. 42177c478bd9Sstevel@tonic-gate */ 42187c478bd9Sstevel@tonic-gate if (load_attach_drv == FALSE && strcmp(prog, DISKS) != 0) { 42197c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 42207c478bd9Sstevel@tonic-gate } 42217c478bd9Sstevel@tonic-gate 42227c478bd9Sstevel@tonic-gate /* if the cleanup flag was not specified, return false */ 42237c478bd9Sstevel@tonic-gate if ((cleanup == FALSE) && ((remove->flags & RM_ALWAYS) == 0)) { 42247c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 42257c478bd9Sstevel@tonic-gate } 42267c478bd9Sstevel@tonic-gate 42277c478bd9Sstevel@tonic-gate if (num_classes == 0) { 42287c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 42297c478bd9Sstevel@tonic-gate } 42307c478bd9Sstevel@tonic-gate 42317c478bd9Sstevel@tonic-gate /* 42327c478bd9Sstevel@tonic-gate * if reached this point, check to see if the class in the given 42337c478bd9Sstevel@tonic-gate * remove structure matches a class given on the command line 42347c478bd9Sstevel@tonic-gate */ 42357c478bd9Sstevel@tonic-gate 42367c478bd9Sstevel@tonic-gate for (i = 0; i < num_classes; i++) { 42377c478bd9Sstevel@tonic-gate if (strcmp(remove->device_class, classes[i]) == 0) { 42387c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 42397c478bd9Sstevel@tonic-gate } 42407c478bd9Sstevel@tonic-gate } 42417c478bd9Sstevel@tonic-gate 42427c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 42437c478bd9Sstevel@tonic-gate } 42447c478bd9Sstevel@tonic-gate 42457c478bd9Sstevel@tonic-gate /* 42467c478bd9Sstevel@tonic-gate * Called to remove dangling nodes after receiving a hotplug event 42477c478bd9Sstevel@tonic-gate * containing the physical node pathname to be removed. 42487c478bd9Sstevel@tonic-gate */ 42497c478bd9Sstevel@tonic-gate void 42507c478bd9Sstevel@tonic-gate hot_cleanup(char *node_path, char *minor_name, char *ev_subclass, 42517c478bd9Sstevel@tonic-gate char *driver_name, int instance) 42527c478bd9Sstevel@tonic-gate { 42537c478bd9Sstevel@tonic-gate link_t *link; 42547c478bd9Sstevel@tonic-gate linkhead_t *head; 42557c478bd9Sstevel@tonic-gate remove_list_t *rm; 42567c478bd9Sstevel@tonic-gate char *fcn = "hot_cleanup: "; 42577c478bd9Sstevel@tonic-gate char path[PATH_MAX + 1]; 42587c478bd9Sstevel@tonic-gate int path_len; 42597c478bd9Sstevel@tonic-gate char rmlink[PATH_MAX + 1]; 42607c478bd9Sstevel@tonic-gate nvlist_t *nvl = NULL; 4261fb9251a6Scth int skip; 4262aa646b9dSvikram int ret; 42637c478bd9Sstevel@tonic-gate 42647c478bd9Sstevel@tonic-gate /* 42657c478bd9Sstevel@tonic-gate * dev links can go away as part of hot cleanup. 42667c478bd9Sstevel@tonic-gate * So first build event attributes in order capture dev links. 42677c478bd9Sstevel@tonic-gate */ 42687c478bd9Sstevel@tonic-gate if (ev_subclass != NULL) 42697c478bd9Sstevel@tonic-gate nvl = build_event_attributes(EC_DEV_REMOVE, ev_subclass, 427030294554Sphitran node_path, DI_NODE_NIL, driver_name, instance, minor_name); 42717c478bd9Sstevel@tonic-gate 42727c478bd9Sstevel@tonic-gate (void) strcpy(path, node_path); 42737c478bd9Sstevel@tonic-gate (void) strcat(path, ":"); 42747c478bd9Sstevel@tonic-gate (void) strcat(path, minor_name == NULL ? "" : minor_name); 42757c478bd9Sstevel@tonic-gate 42767c478bd9Sstevel@tonic-gate path_len = strlen(path); 42777c478bd9Sstevel@tonic-gate 42787c478bd9Sstevel@tonic-gate vprint(REMOVE_MID, "%spath=%s\n", fcn, path); 42797c478bd9Sstevel@tonic-gate 4280aa646b9dSvikram (void) mutex_lock(&nfp_mutex); 4281aa646b9dSvikram nfphash_create(); 4282aa646b9dSvikram 42837c478bd9Sstevel@tonic-gate for (rm = remove_head; rm != NULL; rm = rm->next) { 42847c478bd9Sstevel@tonic-gate if ((RM_HOT & rm->remove->flags) == RM_HOT) { 42857c478bd9Sstevel@tonic-gate head = get_cached_links(rm->remove->dev_dirs_re); 42867c478bd9Sstevel@tonic-gate assert(head->nextlink == NULL); 42877c478bd9Sstevel@tonic-gate for (link = head->link; 42887c478bd9Sstevel@tonic-gate link != NULL; link = head->nextlink) { 42897c478bd9Sstevel@tonic-gate /* 42907c478bd9Sstevel@tonic-gate * The remove callback below may remove 42917c478bd9Sstevel@tonic-gate * the current and/or any or all of the 42927c478bd9Sstevel@tonic-gate * subsequent links in the list. 42937c478bd9Sstevel@tonic-gate * Save the next link in the head. If 42947c478bd9Sstevel@tonic-gate * the callback removes the next link 42957c478bd9Sstevel@tonic-gate * the saved pointer in the head will be 42967c478bd9Sstevel@tonic-gate * updated by the callback to point at 42977c478bd9Sstevel@tonic-gate * the next valid link. 42987c478bd9Sstevel@tonic-gate */ 42997c478bd9Sstevel@tonic-gate head->nextlink = link->next; 4300aa646b9dSvikram 4301aa646b9dSvikram /* 4302aa646b9dSvikram * if devlink is in no-further-process hash, 4303aa646b9dSvikram * skip its remove 4304aa646b9dSvikram */ 4305aa646b9dSvikram if (nfphash_lookup(link->devlink) != NULL) 4306aa646b9dSvikram continue; 4307aa646b9dSvikram 4308fb9251a6Scth if (minor_name) 4309fb9251a6Scth skip = strcmp(link->contents, path); 4310fb9251a6Scth else 4311fb9251a6Scth skip = strncmp(link->contents, path, 4312fb9251a6Scth path_len); 4313fb9251a6Scth if (skip || 4314fb9251a6Scth (call_minor_init(rm->modptr) == 4315fb9251a6Scth DEVFSADM_FAILURE)) 4316fb9251a6Scth continue; 43177c478bd9Sstevel@tonic-gate 4318fb9251a6Scth vprint(REMOVE_MID, 43190a653502Swroche "%sremoving %s -> %s\n", fcn, 43200a653502Swroche link->devlink, link->contents); 4321fb9251a6Scth /* 4322fb9251a6Scth * Use a copy of the cached link name 4323fb9251a6Scth * as the cache entry will go away 4324fb9251a6Scth * during link removal 4325fb9251a6Scth */ 4326fb9251a6Scth (void) snprintf(rmlink, sizeof (rmlink), 4327fb9251a6Scth "%s", link->devlink); 4328aa646b9dSvikram if (rm->remove->flags & RM_NOINTERPOSE) { 4329aa646b9dSvikram ((void (*)(char *)) 43300a653502Swroche (rm->remove->callback_fcn))(rmlink); 4331aa646b9dSvikram } else { 4332aa646b9dSvikram ret = ((int (*)(char *)) 4333aa646b9dSvikram (rm->remove->callback_fcn))(rmlink); 4334aa646b9dSvikram if (ret == DEVFSADM_TERMINATE) 4335aa646b9dSvikram nfphash_insert(rmlink); 4336aa646b9dSvikram } 43377c478bd9Sstevel@tonic-gate } 43387c478bd9Sstevel@tonic-gate } 43397c478bd9Sstevel@tonic-gate } 43407c478bd9Sstevel@tonic-gate 4341aa646b9dSvikram nfphash_destroy(); 4342aa646b9dSvikram (void) mutex_unlock(&nfp_mutex); 4343aa646b9dSvikram 434445916cd2Sjpk /* update device allocation database */ 434545916cd2Sjpk if (system_labeled) { 434645916cd2Sjpk int devtype = 0; 434745916cd2Sjpk 43487e3e5701SJan Parcel if (strstr(path, DA_SOUND_NAME)) 434945916cd2Sjpk devtype = DA_AUDIO; 43507e3e5701SJan Parcel else if (strstr(path, "storage")) 43517e3e5701SJan Parcel devtype = DA_RMDISK; 43527e3e5701SJan Parcel else if (strstr(path, "disk")) 43537e3e5701SJan Parcel devtype = DA_RMDISK; 43547e3e5701SJan Parcel else if (strstr(path, "floppy")) 43557e3e5701SJan Parcel /* TODO: detect usb cds and floppies at insert time */ 435645916cd2Sjpk devtype = DA_RMDISK; 435745916cd2Sjpk else 435845916cd2Sjpk goto out; 43597e3e5701SJan Parcel 43607e3e5701SJan Parcel (void) _update_devalloc_db(&devlist, devtype, DA_REMOVE, 43617e3e5701SJan Parcel node_path, root_dir); 436245916cd2Sjpk } 436345916cd2Sjpk 436445916cd2Sjpk out: 43657c478bd9Sstevel@tonic-gate /* now log an event */ 43667c478bd9Sstevel@tonic-gate if (nvl) { 43677c478bd9Sstevel@tonic-gate log_event(EC_DEV_REMOVE, ev_subclass, nvl); 43687c478bd9Sstevel@tonic-gate free(nvl); 43697c478bd9Sstevel@tonic-gate } 43707c478bd9Sstevel@tonic-gate } 43717c478bd9Sstevel@tonic-gate 43727c478bd9Sstevel@tonic-gate /* 43737c478bd9Sstevel@tonic-gate * Open the dir current_dir. For every file which matches the first dir 43747c478bd9Sstevel@tonic-gate * component of path_re, recurse. If there are no more *dir* path 43757c478bd9Sstevel@tonic-gate * components left in path_re (ie no more /), then call function rd->fcn. 43767c478bd9Sstevel@tonic-gate */ 43777c478bd9Sstevel@tonic-gate static void 43787c478bd9Sstevel@tonic-gate recurse_dev_re(char *current_dir, char *path_re, recurse_dev_t *rd) 43797c478bd9Sstevel@tonic-gate { 43807c478bd9Sstevel@tonic-gate regex_t re1; 43817c478bd9Sstevel@tonic-gate char *slash; 43827c478bd9Sstevel@tonic-gate char new_path[PATH_MAX + 1]; 43837c478bd9Sstevel@tonic-gate char *anchored_path_re; 43847c478bd9Sstevel@tonic-gate size_t len; 438573de625bSjg finddevhdl_t fhandle; 438673de625bSjg const char *fp; 43877c478bd9Sstevel@tonic-gate 43887c478bd9Sstevel@tonic-gate vprint(RECURSEDEV_MID, "recurse_dev_re: curr = %s path=%s\n", 43890a653502Swroche current_dir, path_re); 43907c478bd9Sstevel@tonic-gate 439173de625bSjg if (finddev_readdir(current_dir, &fhandle) != 0) 43927c478bd9Sstevel@tonic-gate return; 43937c478bd9Sstevel@tonic-gate 43947c478bd9Sstevel@tonic-gate len = strlen(path_re); 43957c478bd9Sstevel@tonic-gate if ((slash = strchr(path_re, '/')) != NULL) { 43967c478bd9Sstevel@tonic-gate len = (slash - path_re); 43977c478bd9Sstevel@tonic-gate } 43987c478bd9Sstevel@tonic-gate 43997c478bd9Sstevel@tonic-gate anchored_path_re = s_malloc(len + 3); 44007c478bd9Sstevel@tonic-gate (void) sprintf(anchored_path_re, "^%.*s$", len, path_re); 44017c478bd9Sstevel@tonic-gate 44027c478bd9Sstevel@tonic-gate if (regcomp(&re1, anchored_path_re, REG_EXTENDED) != 0) { 44037c478bd9Sstevel@tonic-gate free(anchored_path_re); 44047c478bd9Sstevel@tonic-gate goto out; 44057c478bd9Sstevel@tonic-gate } 44067c478bd9Sstevel@tonic-gate 44077c478bd9Sstevel@tonic-gate free(anchored_path_re); 44087c478bd9Sstevel@tonic-gate 440973de625bSjg while ((fp = finddev_next(fhandle)) != NULL) { 44107c478bd9Sstevel@tonic-gate 441173de625bSjg if (regexec(&re1, fp, 0, NULL, 0) == 0) { 44127c478bd9Sstevel@tonic-gate /* match */ 44137c478bd9Sstevel@tonic-gate (void) strcpy(new_path, current_dir); 44147c478bd9Sstevel@tonic-gate (void) strcat(new_path, "/"); 441573de625bSjg (void) strcat(new_path, fp); 44167c478bd9Sstevel@tonic-gate 44177c478bd9Sstevel@tonic-gate vprint(RECURSEDEV_MID, "recurse_dev_re: match, new " 44180a653502Swroche "path = %s\n", new_path); 44197c478bd9Sstevel@tonic-gate 44207c478bd9Sstevel@tonic-gate if (slash != NULL) { 44217c478bd9Sstevel@tonic-gate recurse_dev_re(new_path, slash + 1, rd); 44227c478bd9Sstevel@tonic-gate } else { 44237c478bd9Sstevel@tonic-gate /* reached the leaf component of path_re */ 44247c478bd9Sstevel@tonic-gate vprint(RECURSEDEV_MID, 44250a653502Swroche "recurse_dev_re: calling fcn\n"); 44267c478bd9Sstevel@tonic-gate (*(rd->fcn))(new_path, rd->data); 44277c478bd9Sstevel@tonic-gate } 44287c478bd9Sstevel@tonic-gate } 44297c478bd9Sstevel@tonic-gate } 44307c478bd9Sstevel@tonic-gate 44317c478bd9Sstevel@tonic-gate regfree(&re1); 44327c478bd9Sstevel@tonic-gate 44337c478bd9Sstevel@tonic-gate out: 443473de625bSjg finddev_close(fhandle); 44357c478bd9Sstevel@tonic-gate } 44367c478bd9Sstevel@tonic-gate 44377c478bd9Sstevel@tonic-gate /* 44387c478bd9Sstevel@tonic-gate * Found a devpath which matches a RE in the remove structure. 44397c478bd9Sstevel@tonic-gate * Now check to see if it is dangling. 44407c478bd9Sstevel@tonic-gate */ 44417c478bd9Sstevel@tonic-gate static void 44427c478bd9Sstevel@tonic-gate matching_dev(char *devpath, void *data) 44437c478bd9Sstevel@tonic-gate { 44447c478bd9Sstevel@tonic-gate cleanup_data_t *cleanup_data = data; 4445aa646b9dSvikram int norm_len = strlen(dev_dir) + strlen("/"); 4446aa646b9dSvikram int ret; 44477c478bd9Sstevel@tonic-gate char *fcn = "matching_dev: "; 44487c478bd9Sstevel@tonic-gate 44497c478bd9Sstevel@tonic-gate vprint(RECURSEDEV_MID, "%sexamining devpath = '%s'\n", fcn, 44500a653502Swroche devpath); 44517c478bd9Sstevel@tonic-gate 4452aa646b9dSvikram /* 4453aa646b9dSvikram * If the link is in the no-further-process hash 4454aa646b9dSvikram * don't do any remove operation on it. 4455aa646b9dSvikram */ 4456aa646b9dSvikram if (nfphash_lookup(devpath + norm_len) != NULL) 4457aa646b9dSvikram return; 4458aa646b9dSvikram 4459*94c894bbSVikram Hegde /* 4460*94c894bbSVikram Hegde * Dangling check will work whether "alias" or "current" 4461*94c894bbSVikram Hegde * so no need to redirect. 4462*94c894bbSVikram Hegde */ 44637c478bd9Sstevel@tonic-gate if (resolve_link(devpath, NULL, NULL, NULL, 1) == TRUE) { 44647c478bd9Sstevel@tonic-gate if (call_minor_init(cleanup_data->rm->modptr) == 44650a653502Swroche DEVFSADM_FAILURE) { 44667c478bd9Sstevel@tonic-gate return; 44677c478bd9Sstevel@tonic-gate } 44687c478bd9Sstevel@tonic-gate 4469aa646b9dSvikram devpath += norm_len; 44707c478bd9Sstevel@tonic-gate 44710a653502Swroche vprint(RECURSEDEV_MID, "%scalling callback %s\n", fcn, devpath); 4472aa646b9dSvikram if (cleanup_data->rm->remove->flags & RM_NOINTERPOSE) 4473aa646b9dSvikram ((void (*)(char *)) 44740a653502Swroche (cleanup_data->rm->remove->callback_fcn))(devpath); 4475aa646b9dSvikram else { 4476aa646b9dSvikram ret = ((int (*)(char *)) 4477aa646b9dSvikram (cleanup_data->rm->remove->callback_fcn))(devpath); 4478aa646b9dSvikram if (ret == DEVFSADM_TERMINATE) { 4479aa646b9dSvikram /* 4480aa646b9dSvikram * We want no further remove processing for 4481aa646b9dSvikram * this link. Add it to the nfp_hash; 4482aa646b9dSvikram */ 4483aa646b9dSvikram nfphash_insert(devpath); 4484aa646b9dSvikram } 4485aa646b9dSvikram } 44867c478bd9Sstevel@tonic-gate } 44877c478bd9Sstevel@tonic-gate } 44887c478bd9Sstevel@tonic-gate 44897c478bd9Sstevel@tonic-gate int 4490*94c894bbSVikram Hegde devfsadm_read_link(di_node_t anynode, char *link, char **devfs_path) 44917c478bd9Sstevel@tonic-gate { 44927c478bd9Sstevel@tonic-gate char devlink[PATH_MAX]; 4493*94c894bbSVikram Hegde char *path; 44947c478bd9Sstevel@tonic-gate 44957c478bd9Sstevel@tonic-gate *devfs_path = NULL; 44967c478bd9Sstevel@tonic-gate 44977c478bd9Sstevel@tonic-gate /* prepend link with dev_dir contents */ 44987c478bd9Sstevel@tonic-gate (void) strcpy(devlink, dev_dir); 44997c478bd9Sstevel@tonic-gate (void) strcat(devlink, "/"); 45007c478bd9Sstevel@tonic-gate (void) strcat(devlink, link); 45017c478bd9Sstevel@tonic-gate 45027c478bd9Sstevel@tonic-gate /* We *don't* want a stat of the /devices node */ 4503*94c894bbSVikram Hegde path = NULL; 4504*94c894bbSVikram Hegde (void) resolve_link(devlink, NULL, NULL, &path, 0); 45057c478bd9Sstevel@tonic-gate 4506*94c894bbSVikram Hegde /* redirect if alias to current */ 4507*94c894bbSVikram Hegde *devfs_path = di_alias2curr(anynode, path); 4508*94c894bbSVikram Hegde free(path); 45097c478bd9Sstevel@tonic-gate return (*devfs_path ? DEVFSADM_SUCCESS : DEVFSADM_FAILURE); 45107c478bd9Sstevel@tonic-gate } 45117c478bd9Sstevel@tonic-gate 45127c478bd9Sstevel@tonic-gate int 4513*94c894bbSVikram Hegde devfsadm_link_valid(di_node_t anynode, char *link) 45147c478bd9Sstevel@tonic-gate { 45157c478bd9Sstevel@tonic-gate struct stat sb; 4516*94c894bbSVikram Hegde char devlink[PATH_MAX + 1], *contents, *raw_contents; 45177c478bd9Sstevel@tonic-gate int rv, type; 451845916cd2Sjpk int instance = 0; 45197c478bd9Sstevel@tonic-gate 45207c478bd9Sstevel@tonic-gate /* prepend link with dev_dir contents */ 45217c478bd9Sstevel@tonic-gate (void) strcpy(devlink, dev_dir); 45227c478bd9Sstevel@tonic-gate (void) strcat(devlink, "/"); 45237c478bd9Sstevel@tonic-gate (void) strcat(devlink, link); 45247c478bd9Sstevel@tonic-gate 4525facf4a8dSllai if (!device_exists(devlink) || lstat(devlink, &sb) != 0) { 45267c478bd9Sstevel@tonic-gate return (DEVFSADM_FALSE); 45277c478bd9Sstevel@tonic-gate } 45287c478bd9Sstevel@tonic-gate 4529*94c894bbSVikram Hegde raw_contents = NULL; 45307c478bd9Sstevel@tonic-gate type = 0; 4531*94c894bbSVikram Hegde if (resolve_link(devlink, &raw_contents, &type, NULL, 1) == TRUE) { 45327c478bd9Sstevel@tonic-gate rv = DEVFSADM_FALSE; 45337c478bd9Sstevel@tonic-gate } else { 45347c478bd9Sstevel@tonic-gate rv = DEVFSADM_TRUE; 45357c478bd9Sstevel@tonic-gate } 45367c478bd9Sstevel@tonic-gate 4537*94c894bbSVikram Hegde /* 4538*94c894bbSVikram Hegde * resolve alias paths for primary links 4539*94c894bbSVikram Hegde */ 4540*94c894bbSVikram Hegde contents = raw_contents; 4541*94c894bbSVikram Hegde if (type == DI_PRIMARY_LINK) { 4542*94c894bbSVikram Hegde contents = di_alias2curr(anynode, raw_contents); 4543*94c894bbSVikram Hegde free(raw_contents); 4544*94c894bbSVikram Hegde } 4545*94c894bbSVikram Hegde 45467c478bd9Sstevel@tonic-gate /* 45477c478bd9Sstevel@tonic-gate * The link exists. Add it to the database 45487c478bd9Sstevel@tonic-gate */ 45497c478bd9Sstevel@tonic-gate (void) di_devlink_add_link(devlink_cache, link, contents, type); 455045916cd2Sjpk if (system_labeled && (rv == DEVFSADM_TRUE) && 455145916cd2Sjpk strstr(devlink, DA_AUDIO_NAME) && contents) { 455245916cd2Sjpk (void) sscanf(contents, "%*[a-z]%d", &instance); 455345916cd2Sjpk (void) da_add_list(&devlist, devlink, instance, 455445916cd2Sjpk DA_ADD|DA_AUDIO); 455545916cd2Sjpk _update_devalloc_db(&devlist, 0, DA_ADD, NULL, root_dir); 455645916cd2Sjpk } 45577c478bd9Sstevel@tonic-gate free(contents); 45587c478bd9Sstevel@tonic-gate 45597c478bd9Sstevel@tonic-gate return (rv); 45607c478bd9Sstevel@tonic-gate } 45617c478bd9Sstevel@tonic-gate 45627c478bd9Sstevel@tonic-gate /* 45637c478bd9Sstevel@tonic-gate * devpath: Absolute path to /dev link 45647c478bd9Sstevel@tonic-gate * content_p: Returns malloced string (link content) 45657c478bd9Sstevel@tonic-gate * type_p: Returns link type: primary or secondary 45667c478bd9Sstevel@tonic-gate * devfs_path: Returns malloced string: /devices path w/out "/devices" 45677c478bd9Sstevel@tonic-gate * dangle: if set, check if link is dangling 45687c478bd9Sstevel@tonic-gate * Returns: 45697c478bd9Sstevel@tonic-gate * TRUE if dangling 45707c478bd9Sstevel@tonic-gate * FALSE if not or if caller doesn't care 45717c478bd9Sstevel@tonic-gate * Caller is assumed to have initialized pointer contents to NULL 4572*94c894bbSVikram Hegde * 45737c478bd9Sstevel@tonic-gate */ 45747c478bd9Sstevel@tonic-gate static int 45757c478bd9Sstevel@tonic-gate resolve_link(char *devpath, char **content_p, int *type_p, char **devfs_path, 45767c478bd9Sstevel@tonic-gate int dangle) 45777c478bd9Sstevel@tonic-gate { 45787c478bd9Sstevel@tonic-gate char contents[PATH_MAX + 1]; 45797c478bd9Sstevel@tonic-gate char stage_link[PATH_MAX + 1]; 45807c478bd9Sstevel@tonic-gate char *fcn = "resolve_link: "; 45817c478bd9Sstevel@tonic-gate char *ptr; 45827c478bd9Sstevel@tonic-gate int linksize; 45837c478bd9Sstevel@tonic-gate int rv = TRUE; 45847c478bd9Sstevel@tonic-gate struct stat sb; 45857c478bd9Sstevel@tonic-gate 4586*94c894bbSVikram Hegde /* 4587*94c894bbSVikram Hegde * This routine will return the "raw" contents. It is upto the 4588*94c894bbSVikram Hegde * the caller to redirect "alias" to "current" (or vice versa) 4589*94c894bbSVikram Hegde */ 45907c478bd9Sstevel@tonic-gate linksize = readlink(devpath, contents, PATH_MAX); 45917c478bd9Sstevel@tonic-gate 45927c478bd9Sstevel@tonic-gate if (linksize <= 0) { 45937c478bd9Sstevel@tonic-gate return (FALSE); 45947c478bd9Sstevel@tonic-gate } else { 45957c478bd9Sstevel@tonic-gate contents[linksize] = '\0'; 45967c478bd9Sstevel@tonic-gate } 45977c478bd9Sstevel@tonic-gate vprint(REMOVE_MID, "%s %s -> %s\n", fcn, devpath, contents); 45987c478bd9Sstevel@tonic-gate 45997c478bd9Sstevel@tonic-gate if (content_p) { 46007c478bd9Sstevel@tonic-gate *content_p = s_strdup(contents); 46017c478bd9Sstevel@tonic-gate } 46027c478bd9Sstevel@tonic-gate 46037c478bd9Sstevel@tonic-gate /* 46047c478bd9Sstevel@tonic-gate * Check to see if this is a link pointing to another link in /dev. The 46057c478bd9Sstevel@tonic-gate * cheap way to do this is to look for a lack of ../devices/. 46067c478bd9Sstevel@tonic-gate */ 46077c478bd9Sstevel@tonic-gate 46087c478bd9Sstevel@tonic-gate if (is_minor_node(contents, &ptr) == DEVFSADM_FALSE) { 46097c478bd9Sstevel@tonic-gate 46107c478bd9Sstevel@tonic-gate if (type_p) { 46117c478bd9Sstevel@tonic-gate *type_p = DI_SECONDARY_LINK; 46127c478bd9Sstevel@tonic-gate } 46137c478bd9Sstevel@tonic-gate 46147c478bd9Sstevel@tonic-gate /* 46157c478bd9Sstevel@tonic-gate * assume that linkcontents is really a pointer to another 46167c478bd9Sstevel@tonic-gate * link, and if so recurse and read its link contents. 46177c478bd9Sstevel@tonic-gate */ 46187c478bd9Sstevel@tonic-gate if (strncmp(contents, DEV "/", strlen(DEV) + 1) == 0) { 46197c478bd9Sstevel@tonic-gate (void) strcpy(stage_link, dev_dir); 46207c478bd9Sstevel@tonic-gate (void) strcat(stage_link, "/"); 46217c478bd9Sstevel@tonic-gate (void) strcpy(stage_link, 46220a653502Swroche &contents[strlen(DEV) + strlen("/")]); 46237c478bd9Sstevel@tonic-gate } else { 46247c478bd9Sstevel@tonic-gate if ((ptr = strrchr(devpath, '/')) == NULL) { 46257c478bd9Sstevel@tonic-gate vprint(REMOVE_MID, "%s%s -> %s invalid link. " 46260a653502Swroche "missing '/'\n", fcn, devpath, contents); 46277c478bd9Sstevel@tonic-gate return (TRUE); 46287c478bd9Sstevel@tonic-gate } 46297c478bd9Sstevel@tonic-gate *ptr = '\0'; 46307c478bd9Sstevel@tonic-gate (void) strcpy(stage_link, devpath); 46317c478bd9Sstevel@tonic-gate *ptr = '/'; 46327c478bd9Sstevel@tonic-gate (void) strcat(stage_link, "/"); 46337c478bd9Sstevel@tonic-gate (void) strcat(stage_link, contents); 46347c478bd9Sstevel@tonic-gate } 46357c478bd9Sstevel@tonic-gate return (resolve_link(stage_link, NULL, NULL, devfs_path, 46367c478bd9Sstevel@tonic-gate dangle)); 46377c478bd9Sstevel@tonic-gate } 46387c478bd9Sstevel@tonic-gate 46397c478bd9Sstevel@tonic-gate /* Current link points at a /devices minor node */ 46407c478bd9Sstevel@tonic-gate if (type_p) { 46417c478bd9Sstevel@tonic-gate *type_p = DI_PRIMARY_LINK; 46427c478bd9Sstevel@tonic-gate } 46437c478bd9Sstevel@tonic-gate 46447c478bd9Sstevel@tonic-gate if (devfs_path) 46457c478bd9Sstevel@tonic-gate *devfs_path = s_strdup(ptr); 46467c478bd9Sstevel@tonic-gate 46477c478bd9Sstevel@tonic-gate rv = FALSE; 46487c478bd9Sstevel@tonic-gate if (dangle) 46497c478bd9Sstevel@tonic-gate rv = (stat(ptr - strlen(DEVICES), &sb) == -1); 46507c478bd9Sstevel@tonic-gate 46517c478bd9Sstevel@tonic-gate vprint(REMOVE_MID, "%slink=%s, returning %s\n", fcn, 46520a653502Swroche devpath, ((rv == TRUE) ? "TRUE" : "FALSE")); 46537c478bd9Sstevel@tonic-gate 46547c478bd9Sstevel@tonic-gate return (rv); 46557c478bd9Sstevel@tonic-gate } 46567c478bd9Sstevel@tonic-gate 46577c478bd9Sstevel@tonic-gate /* 46587c478bd9Sstevel@tonic-gate * Returns the substring of interest, given a path. 46597c478bd9Sstevel@tonic-gate */ 46607c478bd9Sstevel@tonic-gate static char * 46617c478bd9Sstevel@tonic-gate alloc_cmp_str(const char *path, devfsadm_enumerate_t *dep) 46627c478bd9Sstevel@tonic-gate { 46637c478bd9Sstevel@tonic-gate uint_t match; 46647c478bd9Sstevel@tonic-gate char *np, *ap, *mp; 46657c478bd9Sstevel@tonic-gate char *cmp_str = NULL; 46667c478bd9Sstevel@tonic-gate char at[] = "@"; 46677c478bd9Sstevel@tonic-gate char *fcn = "alloc_cmp_str"; 46687c478bd9Sstevel@tonic-gate 46697c478bd9Sstevel@tonic-gate np = ap = mp = NULL; 46707c478bd9Sstevel@tonic-gate 46717c478bd9Sstevel@tonic-gate /* 46727c478bd9Sstevel@tonic-gate * extract match flags from the flags argument. 46737c478bd9Sstevel@tonic-gate */ 46747c478bd9Sstevel@tonic-gate match = (dep->flags & MATCH_MASK); 46757c478bd9Sstevel@tonic-gate 46767c478bd9Sstevel@tonic-gate vprint(ENUM_MID, "%s: enumeration match type: 0x%x" 46777c478bd9Sstevel@tonic-gate " path: %s\n", fcn, match, path); 46787c478bd9Sstevel@tonic-gate 46797c478bd9Sstevel@tonic-gate /* 46807c478bd9Sstevel@tonic-gate * MATCH_CALLBACK and MATCH_ALL are the only flags 46817c478bd9Sstevel@tonic-gate * which may be used if "path" is a /dev path 46827c478bd9Sstevel@tonic-gate */ 46837c478bd9Sstevel@tonic-gate if (match == MATCH_CALLBACK) { 46847c478bd9Sstevel@tonic-gate if (dep->sel_fcn == NULL) { 46857c478bd9Sstevel@tonic-gate vprint(ENUM_MID, "%s: invalid enumerate" 46867c478bd9Sstevel@tonic-gate " callback: path: %s\n", fcn, path); 46877c478bd9Sstevel@tonic-gate return (NULL); 46887c478bd9Sstevel@tonic-gate } 46897c478bd9Sstevel@tonic-gate cmp_str = dep->sel_fcn(path, dep->cb_arg); 46907c478bd9Sstevel@tonic-gate return (cmp_str); 46917c478bd9Sstevel@tonic-gate } 46927c478bd9Sstevel@tonic-gate 46937c478bd9Sstevel@tonic-gate cmp_str = s_strdup(path); 46947c478bd9Sstevel@tonic-gate 46957c478bd9Sstevel@tonic-gate if (match == MATCH_ALL) { 46967c478bd9Sstevel@tonic-gate return (cmp_str); 46977c478bd9Sstevel@tonic-gate } 46987c478bd9Sstevel@tonic-gate 46997c478bd9Sstevel@tonic-gate /* 47007c478bd9Sstevel@tonic-gate * The remaining flags make sense only for /devices 47017c478bd9Sstevel@tonic-gate * paths 47027c478bd9Sstevel@tonic-gate */ 47037c478bd9Sstevel@tonic-gate if ((mp = strrchr(cmp_str, ':')) == NULL) { 47047c478bd9Sstevel@tonic-gate vprint(ENUM_MID, "%s: invalid path: %s\n", 47057c478bd9Sstevel@tonic-gate fcn, path); 47067c478bd9Sstevel@tonic-gate goto err; 47077c478bd9Sstevel@tonic-gate } 47087c478bd9Sstevel@tonic-gate 47097c478bd9Sstevel@tonic-gate if (match == MATCH_MINOR) { 47107c478bd9Sstevel@tonic-gate /* A NULL "match_arg" values implies entire minor */ 47117c478bd9Sstevel@tonic-gate if (get_component(mp + 1, dep->match_arg) == NULL) { 47127c478bd9Sstevel@tonic-gate vprint(ENUM_MID, "%s: invalid minor component:" 47137c478bd9Sstevel@tonic-gate " path: %s\n", fcn, path); 47147c478bd9Sstevel@tonic-gate goto err; 47157c478bd9Sstevel@tonic-gate } 47167c478bd9Sstevel@tonic-gate return (cmp_str); 47177c478bd9Sstevel@tonic-gate } 47187c478bd9Sstevel@tonic-gate 47197c478bd9Sstevel@tonic-gate if ((np = strrchr(cmp_str, '/')) == NULL) { 47207c478bd9Sstevel@tonic-gate vprint(ENUM_MID, "%s: invalid path: %s\n", fcn, path); 47217c478bd9Sstevel@tonic-gate goto err; 47227c478bd9Sstevel@tonic-gate } 47237c478bd9Sstevel@tonic-gate 47247c478bd9Sstevel@tonic-gate if (match == MATCH_PARENT) { 47257c478bd9Sstevel@tonic-gate if (strcmp(cmp_str, "/") == 0) { 47267c478bd9Sstevel@tonic-gate vprint(ENUM_MID, "%s: invalid path: %s\n", 47277c478bd9Sstevel@tonic-gate fcn, path); 47287c478bd9Sstevel@tonic-gate goto err; 47297c478bd9Sstevel@tonic-gate } 47307c478bd9Sstevel@tonic-gate 47317c478bd9Sstevel@tonic-gate if (np == cmp_str) { 47327c478bd9Sstevel@tonic-gate *(np + 1) = '\0'; 47337c478bd9Sstevel@tonic-gate } else { 47347c478bd9Sstevel@tonic-gate *np = '\0'; 47357c478bd9Sstevel@tonic-gate } 47367c478bd9Sstevel@tonic-gate return (cmp_str); 47377c478bd9Sstevel@tonic-gate } 47387c478bd9Sstevel@tonic-gate 47397c478bd9Sstevel@tonic-gate /* ap can be NULL - Leaf address may not exist or be empty string */ 47407c478bd9Sstevel@tonic-gate ap = strchr(np+1, '@'); 47417c478bd9Sstevel@tonic-gate 47427c478bd9Sstevel@tonic-gate /* minor is no longer of interest */ 47437c478bd9Sstevel@tonic-gate *mp = '\0'; 47447c478bd9Sstevel@tonic-gate 47457c478bd9Sstevel@tonic-gate if (match == MATCH_NODE) { 47467c478bd9Sstevel@tonic-gate if (ap) 47477c478bd9Sstevel@tonic-gate *ap = '\0'; 47487c478bd9Sstevel@tonic-gate return (cmp_str); 47497c478bd9Sstevel@tonic-gate } else if (match == MATCH_ADDR) { 47507c478bd9Sstevel@tonic-gate /* 47517c478bd9Sstevel@tonic-gate * The empty string is a valid address. The only MATCH_ADDR 47527c478bd9Sstevel@tonic-gate * allowed in this case is against the whole address or 47537c478bd9Sstevel@tonic-gate * the first component of the address (match_arg=NULL/"0"/"1") 47547c478bd9Sstevel@tonic-gate * Note that in this case, the path won't have an "@" 47557c478bd9Sstevel@tonic-gate * As a result ap will be NULL. We fake up an ap = @'\0' 47567c478bd9Sstevel@tonic-gate * so that get_component() will work correctly. 47577c478bd9Sstevel@tonic-gate */ 47587c478bd9Sstevel@tonic-gate if (ap == NULL) { 47597c478bd9Sstevel@tonic-gate ap = at; 47607c478bd9Sstevel@tonic-gate } 47617c478bd9Sstevel@tonic-gate 47627c478bd9Sstevel@tonic-gate if (get_component(ap + 1, dep->match_arg) == NULL) { 47637c478bd9Sstevel@tonic-gate vprint(ENUM_MID, "%s: invalid leaf addr. component:" 47647c478bd9Sstevel@tonic-gate " path: %s\n", fcn, path); 47657c478bd9Sstevel@tonic-gate goto err; 47667c478bd9Sstevel@tonic-gate } 47677c478bd9Sstevel@tonic-gate return (cmp_str); 47687c478bd9Sstevel@tonic-gate } 47697c478bd9Sstevel@tonic-gate 47707c478bd9Sstevel@tonic-gate vprint(ENUM_MID, "%s: invalid enumeration flags: 0x%x" 47710a653502Swroche " path: %s\n", fcn, dep->flags, path); 47727c478bd9Sstevel@tonic-gate 47737c478bd9Sstevel@tonic-gate /*FALLTHRU*/ 47747c478bd9Sstevel@tonic-gate err: 47757c478bd9Sstevel@tonic-gate free(cmp_str); 47767c478bd9Sstevel@tonic-gate return (NULL); 47777c478bd9Sstevel@tonic-gate } 47787c478bd9Sstevel@tonic-gate 47797c478bd9Sstevel@tonic-gate 47807c478bd9Sstevel@tonic-gate /* 47817c478bd9Sstevel@tonic-gate * "str" is expected to be a string with components separated by ',' 47827c478bd9Sstevel@tonic-gate * The terminating null char is considered a separator. 47837c478bd9Sstevel@tonic-gate * get_component() will remove the portion of the string beyond 47847c478bd9Sstevel@tonic-gate * the component indicated. 47857c478bd9Sstevel@tonic-gate * If comp_str is NULL, the entire "str" is returned. 47867c478bd9Sstevel@tonic-gate */ 47877c478bd9Sstevel@tonic-gate static char * 47887c478bd9Sstevel@tonic-gate get_component(char *str, const char *comp_str) 47897c478bd9Sstevel@tonic-gate { 47907c478bd9Sstevel@tonic-gate long comp; 47917c478bd9Sstevel@tonic-gate char *cp; 47927c478bd9Sstevel@tonic-gate 47937c478bd9Sstevel@tonic-gate if (str == NULL) { 47947c478bd9Sstevel@tonic-gate return (NULL); 47957c478bd9Sstevel@tonic-gate } 47967c478bd9Sstevel@tonic-gate 47977c478bd9Sstevel@tonic-gate if (comp_str == NULL) { 47987c478bd9Sstevel@tonic-gate return (str); 47997c478bd9Sstevel@tonic-gate } 48007c478bd9Sstevel@tonic-gate 48017c478bd9Sstevel@tonic-gate errno = 0; 48027c478bd9Sstevel@tonic-gate comp = strtol(comp_str, &cp, 10); 48037c478bd9Sstevel@tonic-gate if (errno != 0 || *cp != '\0' || comp < 0) { 48047c478bd9Sstevel@tonic-gate return (NULL); 48057c478bd9Sstevel@tonic-gate } 48067c478bd9Sstevel@tonic-gate 48077c478bd9Sstevel@tonic-gate if (comp == 0) 48087c478bd9Sstevel@tonic-gate return (str); 48097c478bd9Sstevel@tonic-gate 48107c478bd9Sstevel@tonic-gate for (cp = str; ; cp++) { 48117c478bd9Sstevel@tonic-gate if (*cp == ',' || *cp == '\0') 48127c478bd9Sstevel@tonic-gate comp--; 48137c478bd9Sstevel@tonic-gate if (*cp == '\0' || comp <= 0) { 48147c478bd9Sstevel@tonic-gate break; 48157c478bd9Sstevel@tonic-gate } 48167c478bd9Sstevel@tonic-gate } 48177c478bd9Sstevel@tonic-gate 48187c478bd9Sstevel@tonic-gate if (comp == 0) { 48197c478bd9Sstevel@tonic-gate *cp = '\0'; 48207c478bd9Sstevel@tonic-gate } else { 48217c478bd9Sstevel@tonic-gate str = NULL; 48227c478bd9Sstevel@tonic-gate } 48237c478bd9Sstevel@tonic-gate 48247c478bd9Sstevel@tonic-gate return (str); 48257c478bd9Sstevel@tonic-gate } 48267c478bd9Sstevel@tonic-gate 48277c478bd9Sstevel@tonic-gate 48287c478bd9Sstevel@tonic-gate /* 48297c478bd9Sstevel@tonic-gate * Enumerate serves as a generic counter as well as a means to determine 48307c478bd9Sstevel@tonic-gate * logical unit/controller numbers for such items as disk and tape 48317c478bd9Sstevel@tonic-gate * drives. 48327c478bd9Sstevel@tonic-gate * 48337c478bd9Sstevel@tonic-gate * rules[] is an array of devfsadm_enumerate_t structures which defines 48347c478bd9Sstevel@tonic-gate * the enumeration rules to be used for a specified set of links in /dev. 48357c478bd9Sstevel@tonic-gate * The set of links is specified through regular expressions (of the flavor 48367c478bd9Sstevel@tonic-gate * described in regex(5)). These regular expressions are used to determine 48377c478bd9Sstevel@tonic-gate * the set of links in /dev to examine. The last path component in these 48387c478bd9Sstevel@tonic-gate * regular expressions MUST contain a parenthesized subexpression surrounding 48397c478bd9Sstevel@tonic-gate * the RE which is to be considered the enumerating component. The subexp 48407c478bd9Sstevel@tonic-gate * member in a rule is the subexpression number of the enumerating 48417c478bd9Sstevel@tonic-gate * component. Subexpressions in the last path component are numbered starting 48427c478bd9Sstevel@tonic-gate * from 1. 48437c478bd9Sstevel@tonic-gate * 48447c478bd9Sstevel@tonic-gate * A cache of current id assignments is built up from existing symlinks and 48457c478bd9Sstevel@tonic-gate * new assignments use the lowest unused id. Assignments are based on a 48467c478bd9Sstevel@tonic-gate * match of a specified substring of a symlink's contents. If the specified 48477c478bd9Sstevel@tonic-gate * component for the devfs_path argument matches the corresponding substring 48487c478bd9Sstevel@tonic-gate * for a existing symlink's contents, the cached id is returned. Else, a new 48497c478bd9Sstevel@tonic-gate * id is created and returned in *buf. *buf must be freed by the caller. 48507c478bd9Sstevel@tonic-gate * 48517c478bd9Sstevel@tonic-gate * An id assignment may be governed by a combination of rules, each rule 48527c478bd9Sstevel@tonic-gate * applicable to a different subset of links in /dev. For example, controller 48537c478bd9Sstevel@tonic-gate * numbers may be determined by a combination of disk symlinks in /dev/[r]dsk 48547c478bd9Sstevel@tonic-gate * and controller symlinks in /dev/cfg, with the two sets requiring different 48557c478bd9Sstevel@tonic-gate * rules to derive the "substring of interest". In such cases, the rules 48567c478bd9Sstevel@tonic-gate * array will have more than one element. 48577c478bd9Sstevel@tonic-gate */ 48587c478bd9Sstevel@tonic-gate int 48597c478bd9Sstevel@tonic-gate devfsadm_enumerate_int(char *devfs_path, int index, char **buf, 48607c478bd9Sstevel@tonic-gate devfsadm_enumerate_t rules[], int nrules) 48617c478bd9Sstevel@tonic-gate { 48627c478bd9Sstevel@tonic-gate return (find_enum_id(rules, nrules, 48637c478bd9Sstevel@tonic-gate devfs_path, index, "0", INTEGER, buf, 0)); 48647c478bd9Sstevel@tonic-gate } 48657c478bd9Sstevel@tonic-gate 48667c478bd9Sstevel@tonic-gate int 48677c478bd9Sstevel@tonic-gate disk_enumerate_int(char *devfs_path, int index, char **buf, 48687c478bd9Sstevel@tonic-gate devfsadm_enumerate_t rules[], int nrules) 48697c478bd9Sstevel@tonic-gate { 48707c478bd9Sstevel@tonic-gate return (find_enum_id(rules, nrules, 48717c478bd9Sstevel@tonic-gate devfs_path, index, "0", INTEGER, buf, 1)); 48727c478bd9Sstevel@tonic-gate } 48737c478bd9Sstevel@tonic-gate 48747c478bd9Sstevel@tonic-gate /* 48757c478bd9Sstevel@tonic-gate * Same as above, but allows a starting value to be specified. 48767c478bd9Sstevel@tonic-gate * Private to devfsadm.... used by devlinks. 48777c478bd9Sstevel@tonic-gate */ 48787c478bd9Sstevel@tonic-gate static int 48797c478bd9Sstevel@tonic-gate devfsadm_enumerate_int_start(char *devfs_path, int index, char **buf, 48807c478bd9Sstevel@tonic-gate devfsadm_enumerate_t rules[], int nrules, char *start) 48817c478bd9Sstevel@tonic-gate { 48827c478bd9Sstevel@tonic-gate return (find_enum_id(rules, nrules, 48837c478bd9Sstevel@tonic-gate devfs_path, index, start, INTEGER, buf, 0)); 48847c478bd9Sstevel@tonic-gate } 48857c478bd9Sstevel@tonic-gate 48867c478bd9Sstevel@tonic-gate /* 48877c478bd9Sstevel@tonic-gate * devfsadm_enumerate_char serves as a generic counter returning 48887c478bd9Sstevel@tonic-gate * a single letter. 48897c478bd9Sstevel@tonic-gate */ 48907c478bd9Sstevel@tonic-gate int 48917c478bd9Sstevel@tonic-gate devfsadm_enumerate_char(char *devfs_path, int index, char **buf, 48927c478bd9Sstevel@tonic-gate devfsadm_enumerate_t rules[], int nrules) 48937c478bd9Sstevel@tonic-gate { 48947c478bd9Sstevel@tonic-gate return (find_enum_id(rules, nrules, 48957c478bd9Sstevel@tonic-gate devfs_path, index, "a", LETTER, buf, 0)); 48967c478bd9Sstevel@tonic-gate } 48977c478bd9Sstevel@tonic-gate 48987c478bd9Sstevel@tonic-gate /* 48997c478bd9Sstevel@tonic-gate * Same as above, but allows a starting char to be specified. 49007c478bd9Sstevel@tonic-gate * Private to devfsadm - used by ports module (port_link.c) 49017c478bd9Sstevel@tonic-gate */ 49027c478bd9Sstevel@tonic-gate int 49037c478bd9Sstevel@tonic-gate devfsadm_enumerate_char_start(char *devfs_path, int index, char **buf, 49047c478bd9Sstevel@tonic-gate devfsadm_enumerate_t rules[], int nrules, char *start) 49057c478bd9Sstevel@tonic-gate { 49067c478bd9Sstevel@tonic-gate return (find_enum_id(rules, nrules, 49077c478bd9Sstevel@tonic-gate devfs_path, index, start, LETTER, buf, 0)); 49087c478bd9Sstevel@tonic-gate } 49097c478bd9Sstevel@tonic-gate 49107c478bd9Sstevel@tonic-gate 49117c478bd9Sstevel@tonic-gate /* 49127c478bd9Sstevel@tonic-gate * For a given numeral_set (see get_cached_set for desc of numeral_set), 49137c478bd9Sstevel@tonic-gate * search all cached entries looking for matches on a specified substring 49147c478bd9Sstevel@tonic-gate * of devfs_path. The substring is derived from devfs_path based on the 49157c478bd9Sstevel@tonic-gate * rule specified by "index". If a match is found on a cached entry, 49167c478bd9Sstevel@tonic-gate * return the enumerated id in buf. Otherwise, create a new id by calling 49177c478bd9Sstevel@tonic-gate * new_id, then cache and return that entry. 49187c478bd9Sstevel@tonic-gate */ 49197c478bd9Sstevel@tonic-gate static int 49207c478bd9Sstevel@tonic-gate find_enum_id(devfsadm_enumerate_t rules[], int nrules, 49217c478bd9Sstevel@tonic-gate char *devfs_path, int index, char *min, int type, char **buf, 49227c478bd9Sstevel@tonic-gate int multiple) 49237c478bd9Sstevel@tonic-gate { 49247c478bd9Sstevel@tonic-gate numeral_t *matchnp; 49257c478bd9Sstevel@tonic-gate numeral_t *numeral; 49267c478bd9Sstevel@tonic-gate int matchcount = 0; 49277c478bd9Sstevel@tonic-gate char *cmp_str; 49287c478bd9Sstevel@tonic-gate char *fcn = "find_enum_id"; 49297c478bd9Sstevel@tonic-gate numeral_set_t *set; 49307c478bd9Sstevel@tonic-gate 49317c478bd9Sstevel@tonic-gate if (rules == NULL) { 49327c478bd9Sstevel@tonic-gate vprint(ENUM_MID, "%s: no rules. path: %s\n", 49337c478bd9Sstevel@tonic-gate fcn, devfs_path ? devfs_path : "<NULL path>"); 49347c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 49357c478bd9Sstevel@tonic-gate } 49367c478bd9Sstevel@tonic-gate 49377c478bd9Sstevel@tonic-gate if (devfs_path == NULL) { 49387c478bd9Sstevel@tonic-gate vprint(ENUM_MID, "%s: NULL path\n", fcn); 49397c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 49407c478bd9Sstevel@tonic-gate } 49417c478bd9Sstevel@tonic-gate 49427c478bd9Sstevel@tonic-gate if (nrules <= 0 || index < 0 || index >= nrules || buf == NULL) { 49437c478bd9Sstevel@tonic-gate vprint(ENUM_MID, "%s: invalid arguments. path: %s\n", 49447c478bd9Sstevel@tonic-gate fcn, devfs_path); 49457c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 49467c478bd9Sstevel@tonic-gate } 49477c478bd9Sstevel@tonic-gate 49487c478bd9Sstevel@tonic-gate *buf = NULL; 49497c478bd9Sstevel@tonic-gate 49507c478bd9Sstevel@tonic-gate 49517c478bd9Sstevel@tonic-gate cmp_str = alloc_cmp_str(devfs_path, &rules[index]); 49527c478bd9Sstevel@tonic-gate if (cmp_str == NULL) { 49537c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 49547c478bd9Sstevel@tonic-gate } 49557c478bd9Sstevel@tonic-gate 49567c478bd9Sstevel@tonic-gate if ((set = get_enum_cache(rules, nrules)) == NULL) { 49577c478bd9Sstevel@tonic-gate free(cmp_str); 49587c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 49597c478bd9Sstevel@tonic-gate } 49607c478bd9Sstevel@tonic-gate 49617c478bd9Sstevel@tonic-gate assert(nrules == set->re_count); 49627c478bd9Sstevel@tonic-gate 49637c478bd9Sstevel@tonic-gate /* 49647c478bd9Sstevel@tonic-gate * Check and see if a matching entry is already cached. 49657c478bd9Sstevel@tonic-gate */ 49667c478bd9Sstevel@tonic-gate matchcount = lookup_enum_cache(set, cmp_str, rules, index, 49677c478bd9Sstevel@tonic-gate &matchnp); 49687c478bd9Sstevel@tonic-gate 49697c478bd9Sstevel@tonic-gate if (matchcount < 0 || matchcount > 1) { 49707c478bd9Sstevel@tonic-gate free(cmp_str); 49717c478bd9Sstevel@tonic-gate if (multiple && matchcount > 1) 49727c478bd9Sstevel@tonic-gate return (DEVFSADM_MULTIPLE); 49737c478bd9Sstevel@tonic-gate else 49747c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 49757c478bd9Sstevel@tonic-gate } 49767c478bd9Sstevel@tonic-gate 49777c478bd9Sstevel@tonic-gate /* if matching entry already cached, return it */ 49787c478bd9Sstevel@tonic-gate if (matchcount == 1) { 49798d483882Smlf /* should never create a link with a reserved ID */ 49808d483882Smlf vprint(ENUM_MID, "%s: 1 match w/ ID: %s\n", fcn, matchnp->id); 49818d483882Smlf assert(matchnp->flags == 0); 49827c478bd9Sstevel@tonic-gate *buf = s_strdup(matchnp->id); 49837c478bd9Sstevel@tonic-gate free(cmp_str); 49847c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 49857c478bd9Sstevel@tonic-gate } 49867c478bd9Sstevel@tonic-gate 49877c478bd9Sstevel@tonic-gate /* 49887c478bd9Sstevel@tonic-gate * no cached entry, initialize a numeral struct 49897c478bd9Sstevel@tonic-gate * by calling new_id() and cache onto the numeral_set 49907c478bd9Sstevel@tonic-gate */ 49917c478bd9Sstevel@tonic-gate numeral = s_malloc(sizeof (numeral_t)); 49927c478bd9Sstevel@tonic-gate numeral->id = new_id(set->headnumeral, type, min); 49937c478bd9Sstevel@tonic-gate numeral->full_path = s_strdup(devfs_path); 49947c478bd9Sstevel@tonic-gate numeral->rule_index = index; 49957c478bd9Sstevel@tonic-gate numeral->cmp_str = cmp_str; 49967c478bd9Sstevel@tonic-gate cmp_str = NULL; 49978d483882Smlf numeral->flags = 0; 49988d483882Smlf vprint(RSRV_MID, "%s: alloc new_id: %s numeral flags = %d\n", 49998d483882Smlf fcn, numeral->id, numeral->flags); 50008d483882Smlf 50017c478bd9Sstevel@tonic-gate 50027c478bd9Sstevel@tonic-gate /* insert to head of list for fast lookups */ 50037c478bd9Sstevel@tonic-gate numeral->next = set->headnumeral; 50047c478bd9Sstevel@tonic-gate set->headnumeral = numeral; 50057c478bd9Sstevel@tonic-gate 50067c478bd9Sstevel@tonic-gate *buf = s_strdup(numeral->id); 50077c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 50087c478bd9Sstevel@tonic-gate } 50097c478bd9Sstevel@tonic-gate 50107c478bd9Sstevel@tonic-gate 50117c478bd9Sstevel@tonic-gate /* 50127c478bd9Sstevel@tonic-gate * Looks up the specified cache for a match with a specified string 50137c478bd9Sstevel@tonic-gate * Returns: 50147c478bd9Sstevel@tonic-gate * -1 : on error. 50157c478bd9Sstevel@tonic-gate * 0/1/2 : Number of matches. 50167c478bd9Sstevel@tonic-gate * Returns the matching element only if there is a single match. 50177c478bd9Sstevel@tonic-gate * If the "uncached" flag is set, derives the "cmp_str" afresh 50187c478bd9Sstevel@tonic-gate * for the match instead of using cached values. 50197c478bd9Sstevel@tonic-gate */ 50207c478bd9Sstevel@tonic-gate static int 50217c478bd9Sstevel@tonic-gate lookup_enum_cache(numeral_set_t *set, char *cmp_str, 50227c478bd9Sstevel@tonic-gate devfsadm_enumerate_t rules[], int index, numeral_t **matchnpp) 50237c478bd9Sstevel@tonic-gate { 50247c478bd9Sstevel@tonic-gate int matchcount = 0, rv = -1; 50257c478bd9Sstevel@tonic-gate int uncached; 50267c478bd9Sstevel@tonic-gate numeral_t *np; 50277c478bd9Sstevel@tonic-gate char *fcn = "lookup_enum_cache"; 50287c478bd9Sstevel@tonic-gate char *cp; 50297c478bd9Sstevel@tonic-gate 50307c478bd9Sstevel@tonic-gate *matchnpp = NULL; 50317c478bd9Sstevel@tonic-gate 50327c478bd9Sstevel@tonic-gate assert(index < set->re_count); 50337c478bd9Sstevel@tonic-gate 50347c478bd9Sstevel@tonic-gate if (cmp_str == NULL) { 50357c478bd9Sstevel@tonic-gate return (-1); 50367c478bd9Sstevel@tonic-gate } 50377c478bd9Sstevel@tonic-gate 50387c478bd9Sstevel@tonic-gate uncached = 0; 50397c478bd9Sstevel@tonic-gate if ((rules[index].flags & MATCH_UNCACHED) == MATCH_UNCACHED) { 50407c478bd9Sstevel@tonic-gate uncached = 1; 50417c478bd9Sstevel@tonic-gate } 50427c478bd9Sstevel@tonic-gate 50437c478bd9Sstevel@tonic-gate /* 50447c478bd9Sstevel@tonic-gate * Check and see if a matching entry is already cached. 50457c478bd9Sstevel@tonic-gate */ 50467c478bd9Sstevel@tonic-gate for (np = set->headnumeral; np != NULL; np = np->next) { 50478d483882Smlf 50488d483882Smlf /* 50498d483882Smlf * Skip reserved IDs 50508d483882Smlf */ 50518d483882Smlf if (np->flags & NUMERAL_RESERVED) { 50528d483882Smlf vprint(RSRV_MID, "lookup_enum_cache: " 50538d483882Smlf "Cannot Match with reserved ID (%s), " 50548d483882Smlf "skipping\n", np->id); 50558d483882Smlf assert(np->flags == NUMERAL_RESERVED); 50568d483882Smlf continue; 50578d483882Smlf } else { 50588d483882Smlf vprint(RSRV_MID, "lookup_enum_cache: " 50598d483882Smlf "Attempting match with numeral ID: %s" 50608d483882Smlf " numeral flags = %d\n", np->id, np->flags); 50618d483882Smlf assert(np->flags == 0); 50628d483882Smlf } 50638d483882Smlf 50647c478bd9Sstevel@tonic-gate if (np->cmp_str == NULL) { 50657c478bd9Sstevel@tonic-gate vprint(ENUM_MID, "%s: invalid entry in enumerate" 50667c478bd9Sstevel@tonic-gate " cache. path: %s\n", fcn, np->full_path); 50677c478bd9Sstevel@tonic-gate return (-1); 50687c478bd9Sstevel@tonic-gate } 50697c478bd9Sstevel@tonic-gate 50707c478bd9Sstevel@tonic-gate if (uncached) { 50717c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "%s: bypassing enumerate cache." 50727c478bd9Sstevel@tonic-gate " path: %s\n", fcn, cmp_str); 50737c478bd9Sstevel@tonic-gate cp = alloc_cmp_str(np->full_path, 50747c478bd9Sstevel@tonic-gate &rules[np->rule_index]); 50757c478bd9Sstevel@tonic-gate if (cp == NULL) 50767c478bd9Sstevel@tonic-gate return (-1); 50777c478bd9Sstevel@tonic-gate rv = strcmp(cmp_str, cp); 50787c478bd9Sstevel@tonic-gate free(cp); 50797c478bd9Sstevel@tonic-gate } else { 50807c478bd9Sstevel@tonic-gate rv = strcmp(cmp_str, np->cmp_str); 50817c478bd9Sstevel@tonic-gate } 50827c478bd9Sstevel@tonic-gate 50837c478bd9Sstevel@tonic-gate if (rv == 0) { 50847c478bd9Sstevel@tonic-gate if (matchcount++ != 0) { 50857c478bd9Sstevel@tonic-gate break; /* more than 1 match. */ 50867c478bd9Sstevel@tonic-gate } 50877c478bd9Sstevel@tonic-gate *matchnpp = np; 50887c478bd9Sstevel@tonic-gate } 50897c478bd9Sstevel@tonic-gate } 50907c478bd9Sstevel@tonic-gate 50917c478bd9Sstevel@tonic-gate return (matchcount); 50927c478bd9Sstevel@tonic-gate } 50937c478bd9Sstevel@tonic-gate 50947c478bd9Sstevel@tonic-gate #ifdef DEBUG 50957c478bd9Sstevel@tonic-gate static void 50967c478bd9Sstevel@tonic-gate dump_enum_cache(numeral_set_t *setp) 50977c478bd9Sstevel@tonic-gate { 50987c478bd9Sstevel@tonic-gate int i; 50997c478bd9Sstevel@tonic-gate numeral_t *np; 51007c478bd9Sstevel@tonic-gate char *fcn = "dump_enum_cache"; 51017c478bd9Sstevel@tonic-gate 51027c478bd9Sstevel@tonic-gate vprint(ENUM_MID, "%s: re_count = %d\n", fcn, setp->re_count); 51037c478bd9Sstevel@tonic-gate for (i = 0; i < setp->re_count; i++) { 51047c478bd9Sstevel@tonic-gate vprint(ENUM_MID, "%s: re[%d] = %s\n", fcn, i, setp->re[i]); 51057c478bd9Sstevel@tonic-gate } 51067c478bd9Sstevel@tonic-gate 51077c478bd9Sstevel@tonic-gate for (np = setp->headnumeral; np != NULL; np = np->next) { 51087c478bd9Sstevel@tonic-gate vprint(ENUM_MID, "%s: id: %s\n", fcn, np->id); 51097c478bd9Sstevel@tonic-gate vprint(ENUM_MID, "%s: full_path: %s\n", fcn, np->full_path); 51107c478bd9Sstevel@tonic-gate vprint(ENUM_MID, "%s: rule_index: %d\n", fcn, np->rule_index); 51117c478bd9Sstevel@tonic-gate vprint(ENUM_MID, "%s: cmp_str: %s\n", fcn, np->cmp_str); 51128d483882Smlf vprint(ENUM_MID, "%s: flags: %d\n", fcn, np->flags); 51137c478bd9Sstevel@tonic-gate } 51147c478bd9Sstevel@tonic-gate } 51157c478bd9Sstevel@tonic-gate #endif 51167c478bd9Sstevel@tonic-gate 51177c478bd9Sstevel@tonic-gate /* 51187c478bd9Sstevel@tonic-gate * For a given set of regular expressions in rules[], this function returns 51197c478bd9Sstevel@tonic-gate * either a previously cached struct numeral_set or it will create and 51207c478bd9Sstevel@tonic-gate * cache a new struct numeral_set. There is only one struct numeral_set 51217c478bd9Sstevel@tonic-gate * for the combination of REs present in rules[]. Each numeral_set contains 51227c478bd9Sstevel@tonic-gate * the regular expressions in rules[] used for cache selection AND a linked 51237c478bd9Sstevel@tonic-gate * list of struct numerals, ONE FOR EACH *UNIQUE* numeral or character ID 51247c478bd9Sstevel@tonic-gate * selected by the grouping parenthesized subexpression found in the last 51257c478bd9Sstevel@tonic-gate * path component of each rules[].re. For example, the RE: "rmt/([0-9]+)" 51267c478bd9Sstevel@tonic-gate * selects all the logical nodes of the correct form in dev/rmt/. 51277c478bd9Sstevel@tonic-gate * Each rmt/X will store a *single* struct numeral... ie 0, 1, 2 each get a 51287c478bd9Sstevel@tonic-gate * single struct numeral. There is no need to store more than a single logical 51297c478bd9Sstevel@tonic-gate * node matching X since the information desired in the devfspath would be 51307c478bd9Sstevel@tonic-gate * identical for the portion of the devfspath of interest. (the part up to, 51317c478bd9Sstevel@tonic-gate * but not including the minor name in this example.) 51327c478bd9Sstevel@tonic-gate * 51337c478bd9Sstevel@tonic-gate * If the given numeral_set is not yet cached, call enumerate_recurse to 51347c478bd9Sstevel@tonic-gate * create it. 51357c478bd9Sstevel@tonic-gate */ 51367c478bd9Sstevel@tonic-gate static numeral_set_t * 51377c478bd9Sstevel@tonic-gate get_enum_cache(devfsadm_enumerate_t rules[], int nrules) 51387c478bd9Sstevel@tonic-gate { 51397c478bd9Sstevel@tonic-gate /* linked list of numeral sets */ 51407c478bd9Sstevel@tonic-gate numeral_set_t *setp; 51417c478bd9Sstevel@tonic-gate int i; 51428d483882Smlf int ret; 51437c478bd9Sstevel@tonic-gate char *path_left; 51448d483882Smlf enumerate_file_t *entry; 51457c478bd9Sstevel@tonic-gate char *fcn = "get_enum_cache"; 51467c478bd9Sstevel@tonic-gate 51477c478bd9Sstevel@tonic-gate /* 51487c478bd9Sstevel@tonic-gate * See if we've already cached this numeral set. 51497c478bd9Sstevel@tonic-gate */ 51507c478bd9Sstevel@tonic-gate for (setp = head_numeral_set; setp != NULL; setp = setp->next) { 51517c478bd9Sstevel@tonic-gate /* 51527c478bd9Sstevel@tonic-gate * check all regexp's passed in function against 51537c478bd9Sstevel@tonic-gate * those in cached set. 51547c478bd9Sstevel@tonic-gate */ 51557c478bd9Sstevel@tonic-gate if (nrules != setp->re_count) { 51567c478bd9Sstevel@tonic-gate continue; 51577c478bd9Sstevel@tonic-gate } 51587c478bd9Sstevel@tonic-gate 51597c478bd9Sstevel@tonic-gate for (i = 0; i < nrules; i++) { 51607c478bd9Sstevel@tonic-gate if (strcmp(setp->re[i], rules[i].re) != 0) { 51617c478bd9Sstevel@tonic-gate break; 51627c478bd9Sstevel@tonic-gate } 51637c478bd9Sstevel@tonic-gate } 51647c478bd9Sstevel@tonic-gate 51657c478bd9Sstevel@tonic-gate if (i == nrules) { 51667c478bd9Sstevel@tonic-gate return (setp); 51677c478bd9Sstevel@tonic-gate } 51687c478bd9Sstevel@tonic-gate } 51697c478bd9Sstevel@tonic-gate 51707c478bd9Sstevel@tonic-gate /* 51717c478bd9Sstevel@tonic-gate * If the MATCH_UNCACHED flag is set, we should not be here. 51727c478bd9Sstevel@tonic-gate */ 51737c478bd9Sstevel@tonic-gate for (i = 0; i < nrules; i++) { 51747c478bd9Sstevel@tonic-gate if ((rules[i].flags & MATCH_UNCACHED) == MATCH_UNCACHED) { 51757c478bd9Sstevel@tonic-gate vprint(ENUM_MID, "%s: invalid enumeration flags: " 51767c478bd9Sstevel@tonic-gate "0x%x\n", fcn, rules[i].flags); 51777c478bd9Sstevel@tonic-gate return (NULL); 51787c478bd9Sstevel@tonic-gate } 51797c478bd9Sstevel@tonic-gate } 51807c478bd9Sstevel@tonic-gate 51817c478bd9Sstevel@tonic-gate /* 51827c478bd9Sstevel@tonic-gate * Since we made it here, we have not yet cached the given set of 51837c478bd9Sstevel@tonic-gate * logical nodes matching the passed re. Create a cached entry 51847c478bd9Sstevel@tonic-gate * struct numeral_set and populate it with a minimal set of 51857c478bd9Sstevel@tonic-gate * logical nodes from /dev. 51867c478bd9Sstevel@tonic-gate */ 51877c478bd9Sstevel@tonic-gate 51887c478bd9Sstevel@tonic-gate setp = s_malloc(sizeof (numeral_set_t)); 51897c478bd9Sstevel@tonic-gate setp->re = s_malloc(sizeof (char *) * nrules); 51907c478bd9Sstevel@tonic-gate for (i = 0; i < nrules; i++) { 51917c478bd9Sstevel@tonic-gate setp->re[i] = s_strdup(rules[i].re); 51927c478bd9Sstevel@tonic-gate } 51937c478bd9Sstevel@tonic-gate setp->re_count = nrules; 51947c478bd9Sstevel@tonic-gate setp->headnumeral = NULL; 51957c478bd9Sstevel@tonic-gate 51967c478bd9Sstevel@tonic-gate /* put this new cached set on the cached set list */ 51977c478bd9Sstevel@tonic-gate setp->next = head_numeral_set; 51987c478bd9Sstevel@tonic-gate head_numeral_set = setp; 51997c478bd9Sstevel@tonic-gate 52008d483882Smlf /* 52018d483882Smlf * For each RE, search the "reserved" list to create numeral IDs that 52028d483882Smlf * are reserved. 52038d483882Smlf */ 52048d483882Smlf for (entry = enumerate_reserved; entry; entry = entry->er_next) { 52058d483882Smlf 52068d483882Smlf vprint(RSRV_MID, "parsing rstring: %s\n", entry->er_file); 52078d483882Smlf 52088d483882Smlf for (i = 0; i < nrules; i++) { 52098d483882Smlf path_left = s_strdup(setp->re[i]); 52108d483882Smlf vprint(RSRV_MID, "parsing rule RE: %s\n", path_left); 52118d483882Smlf ret = enumerate_parse(entry->er_file, path_left, 52128d483882Smlf setp, rules, i); 52138d483882Smlf free(path_left); 52148d483882Smlf if (ret == 1) { 52158d483882Smlf /* 52168d483882Smlf * We found the reserved ID for this entry. 52178d483882Smlf * We still keep the entry since it is needed 52188d483882Smlf * by the new link bypass code in disks 52198d483882Smlf */ 52208d483882Smlf vprint(RSRV_MID, "found rsv ID: rstring: %s " 52218d483882Smlf "rule RE: %s\n", entry->er_file, path_left); 52228d483882Smlf break; 52238d483882Smlf } 52248d483882Smlf } 52258d483882Smlf } 52268d483882Smlf 52277c478bd9Sstevel@tonic-gate /* 52287c478bd9Sstevel@tonic-gate * For each RE, search disk and cache any matches on the 5229facf4a8dSllai * numeral list. 52307c478bd9Sstevel@tonic-gate */ 52317c478bd9Sstevel@tonic-gate for (i = 0; i < nrules; i++) { 52327c478bd9Sstevel@tonic-gate path_left = s_strdup(setp->re[i]); 5233facf4a8dSllai enumerate_recurse(dev_dir, path_left, setp, rules, i); 52347c478bd9Sstevel@tonic-gate free(path_left); 52357c478bd9Sstevel@tonic-gate } 52367c478bd9Sstevel@tonic-gate 52377c478bd9Sstevel@tonic-gate #ifdef DEBUG 52387c478bd9Sstevel@tonic-gate dump_enum_cache(setp); 52397c478bd9Sstevel@tonic-gate #endif 52407c478bd9Sstevel@tonic-gate 52417c478bd9Sstevel@tonic-gate return (setp); 52427c478bd9Sstevel@tonic-gate } 52437c478bd9Sstevel@tonic-gate 52447c478bd9Sstevel@tonic-gate 52457c478bd9Sstevel@tonic-gate /* 52467c478bd9Sstevel@tonic-gate * This function stats the pathname namebuf. If this is a directory 52477c478bd9Sstevel@tonic-gate * entry, we recurse down dname/fname until we find the first symbolic 52487c478bd9Sstevel@tonic-gate * link, and then stat and return it. This is valid for the same reason 52497c478bd9Sstevel@tonic-gate * that we only need to read a single pathname for multiple matching 52507c478bd9Sstevel@tonic-gate * logical ID's... ie, all the logical nodes should contain identical 52517c478bd9Sstevel@tonic-gate * physical paths for the parts we are interested. 52527c478bd9Sstevel@tonic-gate */ 52537c478bd9Sstevel@tonic-gate int 52547c478bd9Sstevel@tonic-gate get_stat_info(char *namebuf, struct stat *sb) 52557c478bd9Sstevel@tonic-gate { 52567c478bd9Sstevel@tonic-gate char *cp; 525773de625bSjg finddevhdl_t fhandle; 525873de625bSjg const char *fp; 52597c478bd9Sstevel@tonic-gate 52607c478bd9Sstevel@tonic-gate if (lstat(namebuf, sb) < 0) { 52617c478bd9Sstevel@tonic-gate (void) err_print(LSTAT_FAILED, namebuf, strerror(errno)); 52627c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 52637c478bd9Sstevel@tonic-gate } 52647c478bd9Sstevel@tonic-gate 52657c478bd9Sstevel@tonic-gate if ((sb->st_mode & S_IFMT) == S_IFLNK) { 52667c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 52677c478bd9Sstevel@tonic-gate } 52687c478bd9Sstevel@tonic-gate 52697c478bd9Sstevel@tonic-gate /* 52707c478bd9Sstevel@tonic-gate * If it is a dir, recurse down until we find a link and 52717c478bd9Sstevel@tonic-gate * then use the link. 52727c478bd9Sstevel@tonic-gate */ 52737c478bd9Sstevel@tonic-gate if ((sb->st_mode & S_IFMT) == S_IFDIR) { 52747c478bd9Sstevel@tonic-gate 527573de625bSjg if (finddev_readdir(namebuf, &fhandle) != 0) { 52767c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 52777c478bd9Sstevel@tonic-gate } 52787c478bd9Sstevel@tonic-gate 52797c478bd9Sstevel@tonic-gate /* 52807c478bd9Sstevel@tonic-gate * Search each dir entry looking for a symlink. Return 52817c478bd9Sstevel@tonic-gate * the first symlink found in namebuf. Recurse dirs. 52827c478bd9Sstevel@tonic-gate */ 528373de625bSjg while ((fp = finddev_next(fhandle)) != NULL) { 52847c478bd9Sstevel@tonic-gate cp = namebuf + strlen(namebuf); 5285facf4a8dSllai if ((strlcat(namebuf, "/", PATH_MAX) >= PATH_MAX) || 528673de625bSjg (strlcat(namebuf, fp, PATH_MAX) >= PATH_MAX)) { 5287facf4a8dSllai *cp = '\0'; 528873de625bSjg finddev_close(fhandle); 5289facf4a8dSllai return (DEVFSADM_FAILURE); 5290facf4a8dSllai } 52917c478bd9Sstevel@tonic-gate if (get_stat_info(namebuf, sb) == DEVFSADM_SUCCESS) { 529273de625bSjg finddev_close(fhandle); 52937c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 52947c478bd9Sstevel@tonic-gate } 52957c478bd9Sstevel@tonic-gate *cp = '\0'; 52967c478bd9Sstevel@tonic-gate } 529773de625bSjg finddev_close(fhandle); 52987c478bd9Sstevel@tonic-gate } 52997c478bd9Sstevel@tonic-gate 53007c478bd9Sstevel@tonic-gate /* no symlink found, so return error */ 53017c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 53027c478bd9Sstevel@tonic-gate } 53037c478bd9Sstevel@tonic-gate 53047c478bd9Sstevel@tonic-gate /* 53057c478bd9Sstevel@tonic-gate * An existing matching ID was not found, so this function is called to 53067c478bd9Sstevel@tonic-gate * create the next lowest ID. In the INTEGER case, return the next 53077c478bd9Sstevel@tonic-gate * lowest unused integer. In the case of LETTER, return the next lowest 53087c478bd9Sstevel@tonic-gate * unused letter. Return empty string if all 26 are used. 53097c478bd9Sstevel@tonic-gate * Only IDs >= min will be returned. 53107c478bd9Sstevel@tonic-gate */ 53117c478bd9Sstevel@tonic-gate char * 53127c478bd9Sstevel@tonic-gate new_id(numeral_t *numeral, int type, char *min) 53137c478bd9Sstevel@tonic-gate { 53147c478bd9Sstevel@tonic-gate int imin; 53157c478bd9Sstevel@tonic-gate temp_t *temp; 53167c478bd9Sstevel@tonic-gate temp_t *ptr; 53177c478bd9Sstevel@tonic-gate temp_t **previous; 53187c478bd9Sstevel@tonic-gate temp_t *head = NULL; 53197c478bd9Sstevel@tonic-gate char *retval; 53207c478bd9Sstevel@tonic-gate static char tempbuff[8]; 53217c478bd9Sstevel@tonic-gate numeral_t *np; 53227c478bd9Sstevel@tonic-gate 53237c478bd9Sstevel@tonic-gate if (type == LETTER) { 53247c478bd9Sstevel@tonic-gate 53257c478bd9Sstevel@tonic-gate char letter[26], i; 53267c478bd9Sstevel@tonic-gate 53277c478bd9Sstevel@tonic-gate if (numeral == NULL) { 53287c478bd9Sstevel@tonic-gate return (s_strdup(min)); 53297c478bd9Sstevel@tonic-gate } 53307c478bd9Sstevel@tonic-gate 53317c478bd9Sstevel@tonic-gate for (i = 0; i < 26; i++) { 53327c478bd9Sstevel@tonic-gate letter[i] = 0; 53337c478bd9Sstevel@tonic-gate } 53347c478bd9Sstevel@tonic-gate 53357c478bd9Sstevel@tonic-gate for (np = numeral; np != NULL; np = np->next) { 53368d483882Smlf assert(np->flags == 0 || 53378d483882Smlf np->flags == NUMERAL_RESERVED); 53387c478bd9Sstevel@tonic-gate letter[*np->id - 'a']++; 53397c478bd9Sstevel@tonic-gate } 53407c478bd9Sstevel@tonic-gate 53417c478bd9Sstevel@tonic-gate imin = *min - 'a'; 53427c478bd9Sstevel@tonic-gate 53437c478bd9Sstevel@tonic-gate for (i = imin; i < 26; i++) { 53447c478bd9Sstevel@tonic-gate if (letter[i] == 0) { 53457c478bd9Sstevel@tonic-gate retval = s_malloc(2); 53467c478bd9Sstevel@tonic-gate retval[0] = 'a' + i; 53477c478bd9Sstevel@tonic-gate retval[1] = '\0'; 53487c478bd9Sstevel@tonic-gate return (retval); 53497c478bd9Sstevel@tonic-gate } 53507c478bd9Sstevel@tonic-gate } 53517c478bd9Sstevel@tonic-gate 53527c478bd9Sstevel@tonic-gate return (s_strdup("")); 53537c478bd9Sstevel@tonic-gate } 53547c478bd9Sstevel@tonic-gate 53557c478bd9Sstevel@tonic-gate if (type == INTEGER) { 53567c478bd9Sstevel@tonic-gate 53577c478bd9Sstevel@tonic-gate if (numeral == NULL) { 53587c478bd9Sstevel@tonic-gate return (s_strdup(min)); 53597c478bd9Sstevel@tonic-gate } 53607c478bd9Sstevel@tonic-gate 53617c478bd9Sstevel@tonic-gate imin = atoi(min); 53627c478bd9Sstevel@tonic-gate 53637c478bd9Sstevel@tonic-gate /* sort list */ 53647c478bd9Sstevel@tonic-gate for (np = numeral; np != NULL; np = np->next) { 53658d483882Smlf assert(np->flags == 0 || 53668d483882Smlf np->flags == NUMERAL_RESERVED); 53677c478bd9Sstevel@tonic-gate temp = s_malloc(sizeof (temp_t)); 53687c478bd9Sstevel@tonic-gate temp->integer = atoi(np->id); 53697c478bd9Sstevel@tonic-gate temp->next = NULL; 53707c478bd9Sstevel@tonic-gate 53717c478bd9Sstevel@tonic-gate previous = &head; 53727c478bd9Sstevel@tonic-gate for (ptr = head; ptr != NULL; ptr = ptr->next) { 53737c478bd9Sstevel@tonic-gate if (temp->integer < ptr->integer) { 53747c478bd9Sstevel@tonic-gate temp->next = ptr; 53757c478bd9Sstevel@tonic-gate *previous = temp; 53767c478bd9Sstevel@tonic-gate break; 53777c478bd9Sstevel@tonic-gate } 53787c478bd9Sstevel@tonic-gate previous = &(ptr->next); 53797c478bd9Sstevel@tonic-gate } 53807c478bd9Sstevel@tonic-gate if (ptr == NULL) { 53817c478bd9Sstevel@tonic-gate *previous = temp; 53827c478bd9Sstevel@tonic-gate } 53837c478bd9Sstevel@tonic-gate } 53847c478bd9Sstevel@tonic-gate 53857c478bd9Sstevel@tonic-gate /* now search sorted list for first hole >= imin */ 53867c478bd9Sstevel@tonic-gate for (ptr = head; ptr != NULL; ptr = ptr->next) { 53877c478bd9Sstevel@tonic-gate if (imin == ptr->integer) { 53887c478bd9Sstevel@tonic-gate imin++; 53897c478bd9Sstevel@tonic-gate } else { 53907c478bd9Sstevel@tonic-gate if (imin < ptr->integer) { 53917c478bd9Sstevel@tonic-gate break; 53927c478bd9Sstevel@tonic-gate } 53937c478bd9Sstevel@tonic-gate } 53947c478bd9Sstevel@tonic-gate 53957c478bd9Sstevel@tonic-gate } 53967c478bd9Sstevel@tonic-gate 53977c478bd9Sstevel@tonic-gate /* free temp list */ 53987c478bd9Sstevel@tonic-gate for (ptr = head; ptr != NULL; ) { 53997c478bd9Sstevel@tonic-gate temp = ptr; 54007c478bd9Sstevel@tonic-gate ptr = ptr->next; 54017c478bd9Sstevel@tonic-gate free(temp); 54027c478bd9Sstevel@tonic-gate } 54037c478bd9Sstevel@tonic-gate 54047c478bd9Sstevel@tonic-gate (void) sprintf(tempbuff, "%d", imin); 54057c478bd9Sstevel@tonic-gate return (s_strdup(tempbuff)); 54067c478bd9Sstevel@tonic-gate } 54077c478bd9Sstevel@tonic-gate 54087c478bd9Sstevel@tonic-gate return (s_strdup("")); 54097c478bd9Sstevel@tonic-gate } 54107c478bd9Sstevel@tonic-gate 54118d483882Smlf static int 54128d483882Smlf enumerate_parse(char *rsvstr, char *path_left, numeral_set_t *setp, 54138d483882Smlf devfsadm_enumerate_t rules[], int index) 54148d483882Smlf { 54158d483882Smlf char *slash1 = NULL; 54168d483882Smlf char *slash2 = NULL; 54178d483882Smlf char *numeral_id; 54188d483882Smlf char *path_left_save; 54198d483882Smlf char *rsvstr_save; 54208d483882Smlf int ret = 0; 54218d483882Smlf static int warned = 0; 54228d483882Smlf 54238d483882Smlf rsvstr_save = rsvstr; 54248d483882Smlf path_left_save = path_left; 54258d483882Smlf 54268d483882Smlf if (rsvstr == NULL || rsvstr[0] == '\0' || rsvstr[0] == '/') { 54278d483882Smlf if (!warned) { 54288d483882Smlf err_print("invalid reserved filepath: %s\n", 54298d483882Smlf rsvstr ? rsvstr : "<NULL>"); 54308d483882Smlf warned = 1; 54318d483882Smlf } 54328d483882Smlf return (0); 54338d483882Smlf } 54348d483882Smlf 54358d483882Smlf vprint(RSRV_MID, "processing rule: %s, rstring: %s\n", 54368d483882Smlf path_left, rsvstr); 54378d483882Smlf 54388d483882Smlf 54398d483882Smlf for (;;) { 54408d483882Smlf /* get rid of any extra '/' in the reserve string */ 54418d483882Smlf while (*rsvstr == '/') { 54428d483882Smlf rsvstr++; 54438d483882Smlf } 54448d483882Smlf 54458d483882Smlf /* get rid of any extra '/' in the RE */ 54468d483882Smlf while (*path_left == '/') { 54478d483882Smlf path_left++; 54488d483882Smlf } 54498d483882Smlf 54508d483882Smlf if (slash1 = strchr(path_left, '/')) { 54518d483882Smlf *slash1 = '\0'; 54528d483882Smlf } 54538d483882Smlf if (slash2 = strchr(rsvstr, '/')) { 54548d483882Smlf *slash2 = '\0'; 54558d483882Smlf } 54568d483882Smlf 54578d483882Smlf if ((slash1 != NULL) ^ (slash2 != NULL)) { 54588d483882Smlf ret = 0; 54598d483882Smlf vprint(RSRV_MID, "mismatch in # of path components\n"); 54608d483882Smlf goto out; 54618d483882Smlf } 54628d483882Smlf 54638d483882Smlf /* 54648d483882Smlf * Returns true if path_left matches the list entry. 54658d483882Smlf * If it is the last path component, pass subexp 54668d483882Smlf * so that it will return the corresponding ID in 54678d483882Smlf * numeral_id. 54688d483882Smlf */ 54698d483882Smlf numeral_id = NULL; 54708d483882Smlf if (match_path_component(path_left, rsvstr, &numeral_id, 54710a653502Swroche slash1 ? 0 : rules[index].subexp)) { 54728d483882Smlf 54738d483882Smlf /* We have a match. */ 54748d483882Smlf if (slash1 == NULL) { 54758d483882Smlf /* Is last path component */ 54768d483882Smlf vprint(RSRV_MID, "match and last component\n"); 54778d483882Smlf create_reserved_numeral(setp, numeral_id); 54788d483882Smlf if (numeral_id != NULL) { 54798d483882Smlf free(numeral_id); 54808d483882Smlf } 54818d483882Smlf ret = 1; 54828d483882Smlf goto out; 54838d483882Smlf } else { 54848d483882Smlf /* Not last path component. Continue parsing */ 54858d483882Smlf *slash1 = '/'; 54868d483882Smlf *slash2 = '/'; 54878d483882Smlf path_left = slash1 + 1; 54888d483882Smlf rsvstr = slash2 + 1; 54898d483882Smlf vprint(RSRV_MID, 54908d483882Smlf "match and NOT last component\n"); 54918d483882Smlf continue; 54928d483882Smlf } 54938d483882Smlf } else { 54948d483882Smlf /* No match */ 54958d483882Smlf ret = 0; 54968d483882Smlf vprint(RSRV_MID, "No match: rule RE = %s, " 54978d483882Smlf "rstring = %s\n", path_left, rsvstr); 54988d483882Smlf goto out; 54998d483882Smlf } 55008d483882Smlf } 55018d483882Smlf 55028d483882Smlf out: 55038d483882Smlf if (slash1) 55048d483882Smlf *slash1 = '/'; 55058d483882Smlf if (slash2) 55068d483882Smlf *slash2 = '/'; 55078d483882Smlf 55088d483882Smlf if (ret == 1) { 55098d483882Smlf vprint(RSRV_MID, "match: rule RE: %s, rstring: %s\n", 55108d483882Smlf path_left_save, rsvstr_save); 55118d483882Smlf } else { 55128d483882Smlf vprint(RSRV_MID, "NO match: rule RE: %s, rstring: %s\n", 55138d483882Smlf path_left_save, rsvstr_save); 55148d483882Smlf } 55158d483882Smlf 55168d483882Smlf return (ret); 55178d483882Smlf } 55188d483882Smlf 55197c478bd9Sstevel@tonic-gate /* 55207c478bd9Sstevel@tonic-gate * Search current_dir for all files which match the first path component 55217c478bd9Sstevel@tonic-gate * of path_left, which is an RE. If a match is found, but there are more 55227c478bd9Sstevel@tonic-gate * components of path_left, then recurse, otherwise, if we have reached 55237c478bd9Sstevel@tonic-gate * the last component of path_left, call create_cached_numerals for each 55247c478bd9Sstevel@tonic-gate * file. At some point, recurse_dev_re() should be rewritten so that this 55257c478bd9Sstevel@tonic-gate * function can be eliminated. 55267c478bd9Sstevel@tonic-gate */ 55277c478bd9Sstevel@tonic-gate static void 55287c478bd9Sstevel@tonic-gate enumerate_recurse(char *current_dir, char *path_left, numeral_set_t *setp, 55297c478bd9Sstevel@tonic-gate devfsadm_enumerate_t rules[], int index) 55307c478bd9Sstevel@tonic-gate { 55317c478bd9Sstevel@tonic-gate char *slash; 55327c478bd9Sstevel@tonic-gate char *new_path; 55337c478bd9Sstevel@tonic-gate char *numeral_id; 553473de625bSjg finddevhdl_t fhandle; 553573de625bSjg const char *fp; 55367c478bd9Sstevel@tonic-gate 553773de625bSjg if (finddev_readdir(current_dir, &fhandle) != 0) { 55387c478bd9Sstevel@tonic-gate return; 55397c478bd9Sstevel@tonic-gate } 55407c478bd9Sstevel@tonic-gate 55417c478bd9Sstevel@tonic-gate /* get rid of any extra '/' */ 55427c478bd9Sstevel@tonic-gate while (*path_left == '/') { 55437c478bd9Sstevel@tonic-gate path_left++; 55447c478bd9Sstevel@tonic-gate } 55457c478bd9Sstevel@tonic-gate 55467c478bd9Sstevel@tonic-gate if (slash = strchr(path_left, '/')) { 55477c478bd9Sstevel@tonic-gate *slash = '\0'; 55487c478bd9Sstevel@tonic-gate } 55497c478bd9Sstevel@tonic-gate 555073de625bSjg while ((fp = finddev_next(fhandle)) != NULL) { 55517c478bd9Sstevel@tonic-gate 55527c478bd9Sstevel@tonic-gate /* 5553facf4a8dSllai * Returns true if path_left matches the list entry. 55547c478bd9Sstevel@tonic-gate * If it is the last path component, pass subexp 55557c478bd9Sstevel@tonic-gate * so that it will return the corresponding ID in 55567c478bd9Sstevel@tonic-gate * numeral_id. 55577c478bd9Sstevel@tonic-gate */ 55587c478bd9Sstevel@tonic-gate numeral_id = NULL; 555973de625bSjg if (match_path_component(path_left, (char *)fp, &numeral_id, 55600a653502Swroche slash ? 0 : rules[index].subexp)) { 55617c478bd9Sstevel@tonic-gate 55627c478bd9Sstevel@tonic-gate new_path = s_malloc(strlen(current_dir) + 556373de625bSjg strlen(fp) + 2); 55647c478bd9Sstevel@tonic-gate 55657c478bd9Sstevel@tonic-gate (void) strcpy(new_path, current_dir); 55667c478bd9Sstevel@tonic-gate (void) strcat(new_path, "/"); 556773de625bSjg (void) strcat(new_path, fp); 55687c478bd9Sstevel@tonic-gate 55697c478bd9Sstevel@tonic-gate if (slash != NULL) { 55707c478bd9Sstevel@tonic-gate enumerate_recurse(new_path, slash + 1, 55717c478bd9Sstevel@tonic-gate setp, rules, index); 55727c478bd9Sstevel@tonic-gate } else { 55737c478bd9Sstevel@tonic-gate create_cached_numeral(new_path, setp, 55747c478bd9Sstevel@tonic-gate numeral_id, rules, index); 55757c478bd9Sstevel@tonic-gate if (numeral_id != NULL) { 55767c478bd9Sstevel@tonic-gate free(numeral_id); 55777c478bd9Sstevel@tonic-gate } 55787c478bd9Sstevel@tonic-gate } 55797c478bd9Sstevel@tonic-gate free(new_path); 55807c478bd9Sstevel@tonic-gate } 55817c478bd9Sstevel@tonic-gate } 55827c478bd9Sstevel@tonic-gate 55837c478bd9Sstevel@tonic-gate if (slash != NULL) { 55847c478bd9Sstevel@tonic-gate *slash = '/'; 55857c478bd9Sstevel@tonic-gate } 558673de625bSjg finddev_close(fhandle); 55877c478bd9Sstevel@tonic-gate } 55887c478bd9Sstevel@tonic-gate 55897c478bd9Sstevel@tonic-gate 55907c478bd9Sstevel@tonic-gate /* 55917c478bd9Sstevel@tonic-gate * Returns true if file matches file_re. If subexp is non-zero, it means 55927c478bd9Sstevel@tonic-gate * we are searching the last path component and need to return the 55937c478bd9Sstevel@tonic-gate * parenthesized subexpression subexp in id. 55947c478bd9Sstevel@tonic-gate * 55957c478bd9Sstevel@tonic-gate */ 55967c478bd9Sstevel@tonic-gate static int 55977c478bd9Sstevel@tonic-gate match_path_component(char *file_re, char *file, char **id, int subexp) 55987c478bd9Sstevel@tonic-gate { 55997c478bd9Sstevel@tonic-gate regex_t re1; 56007c478bd9Sstevel@tonic-gate int match = 0; 56017c478bd9Sstevel@tonic-gate int nelements; 56027c478bd9Sstevel@tonic-gate regmatch_t *pmatch; 56037c478bd9Sstevel@tonic-gate 56047c478bd9Sstevel@tonic-gate if (subexp != 0) { 56057c478bd9Sstevel@tonic-gate nelements = subexp + 1; 56060a653502Swroche pmatch = 56070a653502Swroche (regmatch_t *)s_malloc(sizeof (regmatch_t) * nelements); 56087c478bd9Sstevel@tonic-gate } else { 56097c478bd9Sstevel@tonic-gate pmatch = NULL; 56107c478bd9Sstevel@tonic-gate nelements = 0; 56117c478bd9Sstevel@tonic-gate } 56127c478bd9Sstevel@tonic-gate 56137c478bd9Sstevel@tonic-gate if (regcomp(&re1, file_re, REG_EXTENDED) != 0) { 56147c478bd9Sstevel@tonic-gate if (pmatch != NULL) { 56157c478bd9Sstevel@tonic-gate free(pmatch); 56167c478bd9Sstevel@tonic-gate } 56177c478bd9Sstevel@tonic-gate return (0); 56187c478bd9Sstevel@tonic-gate } 56197c478bd9Sstevel@tonic-gate 56207c478bd9Sstevel@tonic-gate if (regexec(&re1, file, nelements, pmatch, 0) == 0) { 56217c478bd9Sstevel@tonic-gate match = 1; 56227c478bd9Sstevel@tonic-gate } 56237c478bd9Sstevel@tonic-gate 56247c478bd9Sstevel@tonic-gate if ((match != 0) && (subexp != 0)) { 56257c478bd9Sstevel@tonic-gate int size = pmatch[subexp].rm_eo - pmatch[subexp].rm_so; 56267c478bd9Sstevel@tonic-gate *id = s_malloc(size + 1); 56277c478bd9Sstevel@tonic-gate (void) strncpy(*id, &file[pmatch[subexp].rm_so], size); 56287c478bd9Sstevel@tonic-gate (*id)[size] = '\0'; 56297c478bd9Sstevel@tonic-gate } 56307c478bd9Sstevel@tonic-gate 56317c478bd9Sstevel@tonic-gate if (pmatch != NULL) { 56327c478bd9Sstevel@tonic-gate free(pmatch); 56337c478bd9Sstevel@tonic-gate } 56347c478bd9Sstevel@tonic-gate regfree(&re1); 56357c478bd9Sstevel@tonic-gate return (match); 56367c478bd9Sstevel@tonic-gate } 56377c478bd9Sstevel@tonic-gate 56388d483882Smlf static void 56398d483882Smlf create_reserved_numeral(numeral_set_t *setp, char *numeral_id) 56408d483882Smlf { 56418d483882Smlf numeral_t *np; 56428d483882Smlf 56438d483882Smlf vprint(RSRV_MID, "Attempting to create reserved numeral: %s\n", 56448d483882Smlf numeral_id); 56458d483882Smlf 56468d483882Smlf /* 56478d483882Smlf * We found a numeral_id from an entry in the enumerate_reserved file 56488d483882Smlf * which matched the re passed in from devfsadm_enumerate. We only 56498d483882Smlf * need to make sure ONE copy of numeral_id exists on the numeral list. 56508d483882Smlf * We only need to store /dev/dsk/cNtod0s0 and no other entries 56518d483882Smlf * hanging off of controller N. 56528d483882Smlf */ 56538d483882Smlf for (np = setp->headnumeral; np != NULL; np = np->next) { 56548d483882Smlf if (strcmp(numeral_id, np->id) == 0) { 56558d483882Smlf vprint(RSRV_MID, "ID: %s, already reserved\n", np->id); 56568d483882Smlf assert(np->flags == NUMERAL_RESERVED); 56578d483882Smlf return; 56588d483882Smlf } else { 56598d483882Smlf assert(np->flags == 0 || 56608d483882Smlf np->flags == NUMERAL_RESERVED); 56618d483882Smlf } 56628d483882Smlf } 56638d483882Smlf 56648d483882Smlf /* NOT on list, so add it */ 56658d483882Smlf np = s_malloc(sizeof (numeral_t)); 56668d483882Smlf np->id = s_strdup(numeral_id); 56678d483882Smlf np->full_path = NULL; 56688d483882Smlf np->rule_index = 0; 56698d483882Smlf np->cmp_str = NULL; 56708d483882Smlf np->flags = NUMERAL_RESERVED; 56718d483882Smlf np->next = setp->headnumeral; 56728d483882Smlf setp->headnumeral = np; 56738d483882Smlf 56748d483882Smlf vprint(RSRV_MID, "Reserved numeral ID: %s\n", np->id); 56758d483882Smlf } 56768d483882Smlf 56777c478bd9Sstevel@tonic-gate /* 56787c478bd9Sstevel@tonic-gate * This function is called for every file which matched the leaf 56797c478bd9Sstevel@tonic-gate * component of the RE. If the "numeral_id" is not already on the 56807c478bd9Sstevel@tonic-gate * numeral set's numeral list, add it and its physical path. 56817c478bd9Sstevel@tonic-gate */ 56827c478bd9Sstevel@tonic-gate static void 56837c478bd9Sstevel@tonic-gate create_cached_numeral(char *path, numeral_set_t *setp, char *numeral_id, 56847c478bd9Sstevel@tonic-gate devfsadm_enumerate_t rules[], int index) 56857c478bd9Sstevel@tonic-gate { 56867c478bd9Sstevel@tonic-gate char linkbuf[PATH_MAX + 1]; 56877c478bd9Sstevel@tonic-gate char lpath[PATH_MAX + 1]; 56887c478bd9Sstevel@tonic-gate char *linkptr, *cmp_str; 56897c478bd9Sstevel@tonic-gate numeral_t *np; 56907c478bd9Sstevel@tonic-gate int linksize; 56917c478bd9Sstevel@tonic-gate struct stat sb; 5692*94c894bbSVikram Hegde char *contents; 56937c478bd9Sstevel@tonic-gate const char *fcn = "create_cached_numeral"; 56947c478bd9Sstevel@tonic-gate 56957c478bd9Sstevel@tonic-gate assert(index >= 0 && index < setp->re_count); 56967c478bd9Sstevel@tonic-gate assert(strcmp(rules[index].re, setp->re[index]) == 0); 56977c478bd9Sstevel@tonic-gate 56987c478bd9Sstevel@tonic-gate /* 56997c478bd9Sstevel@tonic-gate * We found a numeral_id from an entry in /dev which matched 57007c478bd9Sstevel@tonic-gate * the re passed in from devfsadm_enumerate. We only need to make sure 57017c478bd9Sstevel@tonic-gate * ONE copy of numeral_id exists on the numeral list. We only need 57027c478bd9Sstevel@tonic-gate * to store /dev/dsk/cNtod0s0 and no other entries hanging off 57037c478bd9Sstevel@tonic-gate * of controller N. 57047c478bd9Sstevel@tonic-gate */ 57057c478bd9Sstevel@tonic-gate for (np = setp->headnumeral; np != NULL; np = np->next) { 57068d483882Smlf assert(np->flags == 0 || np->flags == NUMERAL_RESERVED); 57077c478bd9Sstevel@tonic-gate if (strcmp(numeral_id, np->id) == 0) { 57088d483882Smlf /* 57098d483882Smlf * Note that we can't assert that the flags field 57108d483882Smlf * of the numeral is 0, since both reserved and 57118d483882Smlf * unreserved links in /dev come here 57128d483882Smlf */ 57138d483882Smlf if (np->flags == NUMERAL_RESERVED) { 57148d483882Smlf vprint(RSRV_MID, "ID derived from /dev link is" 57158d483882Smlf " reserved: %s\n", np->id); 57168d483882Smlf } else { 57178d483882Smlf vprint(RSRV_MID, "ID derived from /dev link is" 57188d483882Smlf " NOT reserved: %s\n", np->id); 57198d483882Smlf } 57207c478bd9Sstevel@tonic-gate return; 57217c478bd9Sstevel@tonic-gate } 57227c478bd9Sstevel@tonic-gate } 57237c478bd9Sstevel@tonic-gate 57247c478bd9Sstevel@tonic-gate /* NOT on list, so add it */ 57257c478bd9Sstevel@tonic-gate 57267c478bd9Sstevel@tonic-gate (void) strcpy(lpath, path); 57277c478bd9Sstevel@tonic-gate /* 57287c478bd9Sstevel@tonic-gate * If path is a dir, it is changed to the first symbolic link it find 57297c478bd9Sstevel@tonic-gate * if it finds one. 57307c478bd9Sstevel@tonic-gate */ 57317c478bd9Sstevel@tonic-gate if (get_stat_info(lpath, &sb) == DEVFSADM_FAILURE) { 57327c478bd9Sstevel@tonic-gate return; 57337c478bd9Sstevel@tonic-gate } 57347c478bd9Sstevel@tonic-gate 57357c478bd9Sstevel@tonic-gate /* If we get here, we found a symlink */ 57367c478bd9Sstevel@tonic-gate linksize = readlink(lpath, linkbuf, PATH_MAX); 57377c478bd9Sstevel@tonic-gate 57387c478bd9Sstevel@tonic-gate if (linksize <= 0) { 57397c478bd9Sstevel@tonic-gate err_print(READLINK_FAILED, fcn, lpath, strerror(errno)); 57407c478bd9Sstevel@tonic-gate return; 57417c478bd9Sstevel@tonic-gate } 57427c478bd9Sstevel@tonic-gate 57437c478bd9Sstevel@tonic-gate linkbuf[linksize] = '\0'; 57447c478bd9Sstevel@tonic-gate 5745*94c894bbSVikram Hegde /* 5746*94c894bbSVikram Hegde * redirect alias path to current path 5747*94c894bbSVikram Hegde * devi_root_node is protected by lock_dev() 5748*94c894bbSVikram Hegde */ 5749*94c894bbSVikram Hegde contents = di_alias2curr(devi_root_node, linkbuf); 5750*94c894bbSVikram Hegde 57517c478bd9Sstevel@tonic-gate /* 57527c478bd9Sstevel@tonic-gate * the following just points linkptr to the root of the /devices 57537c478bd9Sstevel@tonic-gate * node if it is a minor node, otherwise, to the first char of 57547c478bd9Sstevel@tonic-gate * linkbuf if it is a link. 57557c478bd9Sstevel@tonic-gate */ 5756*94c894bbSVikram Hegde (void) is_minor_node(contents, &linkptr); 57577c478bd9Sstevel@tonic-gate 57587c478bd9Sstevel@tonic-gate cmp_str = alloc_cmp_str(linkptr, &rules[index]); 57597c478bd9Sstevel@tonic-gate if (cmp_str == NULL) { 5760*94c894bbSVikram Hegde free(contents); 57617c478bd9Sstevel@tonic-gate return; 57627c478bd9Sstevel@tonic-gate } 57637c478bd9Sstevel@tonic-gate 57647c478bd9Sstevel@tonic-gate np = s_malloc(sizeof (numeral_t)); 57657c478bd9Sstevel@tonic-gate 57667c478bd9Sstevel@tonic-gate np->id = s_strdup(numeral_id); 57677c478bd9Sstevel@tonic-gate np->full_path = s_strdup(linkptr); 57687c478bd9Sstevel@tonic-gate np->rule_index = index; 57697c478bd9Sstevel@tonic-gate np->cmp_str = cmp_str; 57708d483882Smlf np->flags = 0; 57717c478bd9Sstevel@tonic-gate 57727c478bd9Sstevel@tonic-gate np->next = setp->headnumeral; 57737c478bd9Sstevel@tonic-gate setp->headnumeral = np; 5774*94c894bbSVikram Hegde 5775*94c894bbSVikram Hegde free(contents); 57767c478bd9Sstevel@tonic-gate } 57777c478bd9Sstevel@tonic-gate 57787c478bd9Sstevel@tonic-gate 57797c478bd9Sstevel@tonic-gate /* 57807c478bd9Sstevel@tonic-gate * This should be called either before or after granting access to a 57817c478bd9Sstevel@tonic-gate * command line version of devfsadm running, since it may have changed 57827c478bd9Sstevel@tonic-gate * the state of /dev. It forces future enumerate calls to re-build 57837c478bd9Sstevel@tonic-gate * cached information from /dev. 57847c478bd9Sstevel@tonic-gate */ 57857c478bd9Sstevel@tonic-gate void 57867c478bd9Sstevel@tonic-gate invalidate_enumerate_cache(void) 57877c478bd9Sstevel@tonic-gate { 57887c478bd9Sstevel@tonic-gate numeral_set_t *setp; 57897c478bd9Sstevel@tonic-gate numeral_set_t *savedsetp; 57907c478bd9Sstevel@tonic-gate numeral_t *savednumset; 57917c478bd9Sstevel@tonic-gate numeral_t *numset; 57927c478bd9Sstevel@tonic-gate int i; 57937c478bd9Sstevel@tonic-gate 57947c478bd9Sstevel@tonic-gate for (setp = head_numeral_set; setp != NULL; ) { 57957c478bd9Sstevel@tonic-gate /* 57967c478bd9Sstevel@tonic-gate * check all regexp's passed in function against 57977c478bd9Sstevel@tonic-gate * those in cached set. 57987c478bd9Sstevel@tonic-gate */ 57997c478bd9Sstevel@tonic-gate 58007c478bd9Sstevel@tonic-gate savedsetp = setp; 58017c478bd9Sstevel@tonic-gate setp = setp->next; 58027c478bd9Sstevel@tonic-gate 58037c478bd9Sstevel@tonic-gate for (i = 0; i < savedsetp->re_count; i++) { 58047c478bd9Sstevel@tonic-gate free(savedsetp->re[i]); 58057c478bd9Sstevel@tonic-gate } 58067c478bd9Sstevel@tonic-gate free(savedsetp->re); 58077c478bd9Sstevel@tonic-gate 58087c478bd9Sstevel@tonic-gate for (numset = savedsetp->headnumeral; numset != NULL; ) { 58097c478bd9Sstevel@tonic-gate savednumset = numset; 58107c478bd9Sstevel@tonic-gate numset = numset->next; 58117c478bd9Sstevel@tonic-gate assert(savednumset->rule_index < savedsetp->re_count); 58127c478bd9Sstevel@tonic-gate free(savednumset->id); 58137c478bd9Sstevel@tonic-gate free(savednumset->full_path); 58147c478bd9Sstevel@tonic-gate free(savednumset->cmp_str); 58157c478bd9Sstevel@tonic-gate free(savednumset); 58167c478bd9Sstevel@tonic-gate } 58177c478bd9Sstevel@tonic-gate free(savedsetp); 58187c478bd9Sstevel@tonic-gate } 58197c478bd9Sstevel@tonic-gate head_numeral_set = NULL; 58207c478bd9Sstevel@tonic-gate } 58217c478bd9Sstevel@tonic-gate 58227c478bd9Sstevel@tonic-gate /* 58237c478bd9Sstevel@tonic-gate * Copies over links from /dev to <root>/dev and device special files in 58247c478bd9Sstevel@tonic-gate * /devices to <root>/devices, preserving the existing file modes. If 58257c478bd9Sstevel@tonic-gate * the link or special file already exists on <root>, skip the copy. (it 58267c478bd9Sstevel@tonic-gate * would exist only if a package hard coded it there, so assume package 58277c478bd9Sstevel@tonic-gate * knows best?). Use /etc/name_to_major and <root>/etc/name_to_major to 58287c478bd9Sstevel@tonic-gate * make translations for major numbers on device special files. No need to 58297c478bd9Sstevel@tonic-gate * make a translation on minor_perm since if the file was created in the 58307c478bd9Sstevel@tonic-gate * miniroot then it would presumably have the same minor_perm entry in 58317c478bd9Sstevel@tonic-gate * <root>/etc/minor_perm. To be used only by install. 58327c478bd9Sstevel@tonic-gate */ 58337c478bd9Sstevel@tonic-gate int 58347c478bd9Sstevel@tonic-gate devfsadm_copy(void) 58357c478bd9Sstevel@tonic-gate { 58367c478bd9Sstevel@tonic-gate char filename[PATH_MAX + 1]; 58377c478bd9Sstevel@tonic-gate 58387c478bd9Sstevel@tonic-gate /* load the installed root's name_to_major for translations */ 58397c478bd9Sstevel@tonic-gate (void) snprintf(filename, sizeof (filename), "%s%s", root_dir, 58407c478bd9Sstevel@tonic-gate NAME_TO_MAJOR); 58417c478bd9Sstevel@tonic-gate if (load_n2m_table(filename) == DEVFSADM_FAILURE) { 58427c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 58437c478bd9Sstevel@tonic-gate } 58447c478bd9Sstevel@tonic-gate 58457c478bd9Sstevel@tonic-gate /* Copy /dev to target disk. No need to copy /devices with devfs */ 58467c478bd9Sstevel@tonic-gate (void) nftw(DEV, devfsadm_copy_file, 20, FTW_PHYS); 58477c478bd9Sstevel@tonic-gate 58487c478bd9Sstevel@tonic-gate /* Let install handle copying over path_to_inst */ 58497c478bd9Sstevel@tonic-gate 58507c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 58517c478bd9Sstevel@tonic-gate } 58527c478bd9Sstevel@tonic-gate 58537c478bd9Sstevel@tonic-gate /* 58547c478bd9Sstevel@tonic-gate * This function copies links, dirs, and device special files. 58557c478bd9Sstevel@tonic-gate * Note that it always returns DEVFSADM_SUCCESS, so that nftw doesn't 58567c478bd9Sstevel@tonic-gate * abort. 58577c478bd9Sstevel@tonic-gate */ 58587c478bd9Sstevel@tonic-gate /*ARGSUSED*/ 58597c478bd9Sstevel@tonic-gate static int 58607c478bd9Sstevel@tonic-gate devfsadm_copy_file(const char *file, const struct stat *stat, 58617c478bd9Sstevel@tonic-gate int flags, struct FTW *ftw) 58627c478bd9Sstevel@tonic-gate { 58637c478bd9Sstevel@tonic-gate struct stat sp; 58647c478bd9Sstevel@tonic-gate dev_t newdev; 58657c478bd9Sstevel@tonic-gate char newfile[PATH_MAX + 1]; 58667c478bd9Sstevel@tonic-gate char linkcontents[PATH_MAX + 1]; 58677c478bd9Sstevel@tonic-gate int bytes; 58687c478bd9Sstevel@tonic-gate const char *fcn = "devfsadm_copy_file"; 58697c478bd9Sstevel@tonic-gate 58707c478bd9Sstevel@tonic-gate (void) strcpy(newfile, root_dir); 58717c478bd9Sstevel@tonic-gate (void) strcat(newfile, "/"); 58727c478bd9Sstevel@tonic-gate (void) strcat(newfile, file); 58737c478bd9Sstevel@tonic-gate 58747c478bd9Sstevel@tonic-gate if (lstat(newfile, &sp) == 0) { 58757c478bd9Sstevel@tonic-gate /* newfile already exists, so no need to continue */ 58767c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 58777c478bd9Sstevel@tonic-gate } 58787c478bd9Sstevel@tonic-gate 58797c478bd9Sstevel@tonic-gate if (((stat->st_mode & S_IFMT) == S_IFBLK) || 58807c478bd9Sstevel@tonic-gate ((stat->st_mode & S_IFMT) == S_IFCHR)) { 58817c478bd9Sstevel@tonic-gate if (translate_major(stat->st_rdev, &newdev) == 58827c478bd9Sstevel@tonic-gate DEVFSADM_FAILURE) { 58837c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 58847c478bd9Sstevel@tonic-gate } 58857c478bd9Sstevel@tonic-gate if (mknod(newfile, stat->st_mode, newdev) == -1) { 58867c478bd9Sstevel@tonic-gate err_print(MKNOD_FAILED, newfile, strerror(errno)); 58877c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 58887c478bd9Sstevel@tonic-gate } 58897c478bd9Sstevel@tonic-gate } else if ((stat->st_mode & S_IFMT) == S_IFDIR) { 58907c478bd9Sstevel@tonic-gate if (mknod(newfile, stat->st_mode, 0) == -1) { 58917c478bd9Sstevel@tonic-gate err_print(MKNOD_FAILED, newfile, strerror(errno)); 58927c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 58937c478bd9Sstevel@tonic-gate } 58947c478bd9Sstevel@tonic-gate } else if ((stat->st_mode & S_IFMT) == S_IFLNK) { 5895*94c894bbSVikram Hegde /* 5896*94c894bbSVikram Hegde * No need to redirect alias paths. We want a 5897*94c894bbSVikram Hegde * true copy. The system on first boot after install 5898*94c894bbSVikram Hegde * will redirect paths 5899*94c894bbSVikram Hegde */ 59007c478bd9Sstevel@tonic-gate if ((bytes = readlink(file, linkcontents, PATH_MAX)) == -1) { 59017c478bd9Sstevel@tonic-gate err_print(READLINK_FAILED, fcn, file, strerror(errno)); 59027c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 59037c478bd9Sstevel@tonic-gate } 59047c478bd9Sstevel@tonic-gate linkcontents[bytes] = '\0'; 59057c478bd9Sstevel@tonic-gate if (symlink(linkcontents, newfile) == -1) { 59067c478bd9Sstevel@tonic-gate err_print(SYMLINK_FAILED, newfile, newfile, 59070a653502Swroche strerror(errno)); 59087c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 59097c478bd9Sstevel@tonic-gate } 59107c478bd9Sstevel@tonic-gate } 59117c478bd9Sstevel@tonic-gate 59127c478bd9Sstevel@tonic-gate (void) lchown(newfile, stat->st_uid, stat->st_gid); 59137c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 59147c478bd9Sstevel@tonic-gate } 59157c478bd9Sstevel@tonic-gate 59167c478bd9Sstevel@tonic-gate /* 59177c478bd9Sstevel@tonic-gate * Given a dev_t from the running kernel, return the new_dev_t 59187c478bd9Sstevel@tonic-gate * by translating to the major number found on the installed 59197c478bd9Sstevel@tonic-gate * target's root name_to_major file. 59207c478bd9Sstevel@tonic-gate */ 59217c478bd9Sstevel@tonic-gate static int 59227c478bd9Sstevel@tonic-gate translate_major(dev_t old_dev, dev_t *new_dev) 59237c478bd9Sstevel@tonic-gate { 59247c478bd9Sstevel@tonic-gate major_t oldmajor; 59257c478bd9Sstevel@tonic-gate major_t newmajor; 59267c478bd9Sstevel@tonic-gate minor_t oldminor; 59277c478bd9Sstevel@tonic-gate minor_t newminor; 59287c478bd9Sstevel@tonic-gate char cdriver[FILENAME_MAX + 1]; 59297c478bd9Sstevel@tonic-gate char driver[FILENAME_MAX + 1]; 59307c478bd9Sstevel@tonic-gate char *fcn = "translate_major: "; 59317c478bd9Sstevel@tonic-gate 59327c478bd9Sstevel@tonic-gate oldmajor = major(old_dev); 59330a653502Swroche if (modctl(MODGETNAME, driver, sizeof (driver), &oldmajor) != 0) { 59347c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 59357c478bd9Sstevel@tonic-gate } 59367c478bd9Sstevel@tonic-gate 59377c478bd9Sstevel@tonic-gate if (strcmp(driver, "clone") != 0) { 59387c478bd9Sstevel@tonic-gate /* non-clone case */ 59397c478bd9Sstevel@tonic-gate 59407c478bd9Sstevel@tonic-gate /* look up major number is target's name2major */ 59417c478bd9Sstevel@tonic-gate if (get_major_no(driver, &newmajor) == DEVFSADM_FAILURE) { 59427c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 59437c478bd9Sstevel@tonic-gate } 59447c478bd9Sstevel@tonic-gate 59457c478bd9Sstevel@tonic-gate *new_dev = makedev(newmajor, minor(old_dev)); 59467c478bd9Sstevel@tonic-gate if (old_dev != *new_dev) { 59477c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "%sdriver: %s old: %lu,%lu " 59480a653502Swroche "new: %lu,%lu\n", fcn, driver, major(old_dev), 59490a653502Swroche minor(old_dev), major(*new_dev), minor(*new_dev)); 59507c478bd9Sstevel@tonic-gate } 59517c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 59527c478bd9Sstevel@tonic-gate } else { 59537c478bd9Sstevel@tonic-gate /* 59547c478bd9Sstevel@tonic-gate * The clone is a special case. Look at its minor 59557c478bd9Sstevel@tonic-gate * number since it is the major number of the real driver. 59567c478bd9Sstevel@tonic-gate */ 59577c478bd9Sstevel@tonic-gate if (get_major_no(driver, &newmajor) == DEVFSADM_FAILURE) { 59587c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 59597c478bd9Sstevel@tonic-gate } 59607c478bd9Sstevel@tonic-gate 59617c478bd9Sstevel@tonic-gate oldminor = minor(old_dev); 59627c478bd9Sstevel@tonic-gate if (modctl(MODGETNAME, cdriver, sizeof (cdriver), 59630a653502Swroche &oldminor) != 0) { 59647c478bd9Sstevel@tonic-gate err_print(MODGETNAME_FAILED, oldminor); 59657c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 59667c478bd9Sstevel@tonic-gate } 59677c478bd9Sstevel@tonic-gate 59687c478bd9Sstevel@tonic-gate if (get_major_no(cdriver, &newminor) == DEVFSADM_FAILURE) { 59697c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 59707c478bd9Sstevel@tonic-gate } 59717c478bd9Sstevel@tonic-gate 59727c478bd9Sstevel@tonic-gate *new_dev = makedev(newmajor, newminor); 59737c478bd9Sstevel@tonic-gate if (old_dev != *new_dev) { 59747c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "%sdriver: %s old: " 59750a653502Swroche "%lu,%lu new: %lu,%lu\n", fcn, driver, 59760a653502Swroche major(old_dev), minor(old_dev), 59770a653502Swroche major(*new_dev), minor(*new_dev)); 59787c478bd9Sstevel@tonic-gate } 59797c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 59807c478bd9Sstevel@tonic-gate } 59817c478bd9Sstevel@tonic-gate } 59827c478bd9Sstevel@tonic-gate 59837c478bd9Sstevel@tonic-gate /* 59847c478bd9Sstevel@tonic-gate * 59857c478bd9Sstevel@tonic-gate * Find the major number for driver, searching the n2m_list that was 59867c478bd9Sstevel@tonic-gate * built in load_n2m_table(). 59877c478bd9Sstevel@tonic-gate */ 59887c478bd9Sstevel@tonic-gate static int 59897c478bd9Sstevel@tonic-gate get_major_no(char *driver, major_t *major) 59907c478bd9Sstevel@tonic-gate { 59917c478bd9Sstevel@tonic-gate n2m_t *ptr; 59927c478bd9Sstevel@tonic-gate 59937c478bd9Sstevel@tonic-gate for (ptr = n2m_list; ptr != NULL; ptr = ptr->next) { 59947c478bd9Sstevel@tonic-gate if (strcmp(ptr->driver, driver) == 0) { 59957c478bd9Sstevel@tonic-gate *major = ptr->major; 59967c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 59977c478bd9Sstevel@tonic-gate } 59987c478bd9Sstevel@tonic-gate } 59997c478bd9Sstevel@tonic-gate err_print(FIND_MAJOR_FAILED, driver); 60007c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 60017c478bd9Sstevel@tonic-gate } 60027c478bd9Sstevel@tonic-gate 60037c478bd9Sstevel@tonic-gate /* 60047c478bd9Sstevel@tonic-gate * Loads a name_to_major table into memory. Used only for suninstall's 60057c478bd9Sstevel@tonic-gate * private -R option to devfsadm, to translate major numbers from the 60067c478bd9Sstevel@tonic-gate * running to the installed target disk. 60077c478bd9Sstevel@tonic-gate */ 60087c478bd9Sstevel@tonic-gate static int 60097c478bd9Sstevel@tonic-gate load_n2m_table(char *file) 60107c478bd9Sstevel@tonic-gate { 60117c478bd9Sstevel@tonic-gate FILE *fp; 60121ca93273Seota char line[1024], *cp; 60137c478bd9Sstevel@tonic-gate char driver[PATH_MAX + 1]; 60147c478bd9Sstevel@tonic-gate major_t major; 60157c478bd9Sstevel@tonic-gate n2m_t *ptr; 60167c478bd9Sstevel@tonic-gate int ln = 0; 60177c478bd9Sstevel@tonic-gate 60187c478bd9Sstevel@tonic-gate if ((fp = fopen(file, "r")) == NULL) { 60197c478bd9Sstevel@tonic-gate err_print(FOPEN_FAILED, file, strerror(errno)); 60207c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 60217c478bd9Sstevel@tonic-gate } 60227c478bd9Sstevel@tonic-gate 60237c478bd9Sstevel@tonic-gate while (fgets(line, sizeof (line), fp) != NULL) { 60247c478bd9Sstevel@tonic-gate ln++; 60251ca93273Seota /* cut off comments starting with '#' */ 60261ca93273Seota if ((cp = strchr(line, '#')) != NULL) 60271ca93273Seota *cp = '\0'; 60281ca93273Seota /* ignore comment or blank lines */ 60291ca93273Seota if (is_blank(line)) 60307c478bd9Sstevel@tonic-gate continue; 60311ca93273Seota /* sanity-check */ 60327c478bd9Sstevel@tonic-gate if (sscanf(line, "%1024s%lu", driver, &major) != 2) { 60337c478bd9Sstevel@tonic-gate err_print(IGNORING_LINE_IN, ln, file); 60347c478bd9Sstevel@tonic-gate continue; 60357c478bd9Sstevel@tonic-gate } 60367c478bd9Sstevel@tonic-gate ptr = (n2m_t *)s_malloc(sizeof (n2m_t)); 60377c478bd9Sstevel@tonic-gate ptr->major = major; 60387c478bd9Sstevel@tonic-gate ptr->driver = s_strdup(driver); 60397c478bd9Sstevel@tonic-gate ptr->next = n2m_list; 60407c478bd9Sstevel@tonic-gate n2m_list = ptr; 60417c478bd9Sstevel@tonic-gate } 60427c478bd9Sstevel@tonic-gate if (fclose(fp) == EOF) { 60437c478bd9Sstevel@tonic-gate err_print(FCLOSE_FAILED, file, strerror(errno)); 60447c478bd9Sstevel@tonic-gate } 60457c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 60467c478bd9Sstevel@tonic-gate } 60477c478bd9Sstevel@tonic-gate 60488d483882Smlf /* 60498d483882Smlf * Called at devfsadm startup to read the file /etc/dev/enumerate_reserved 60508d483882Smlf * Creates a linked list of devlinks from which reserved IDs can be derived 60518d483882Smlf */ 60528d483882Smlf static void 60538d483882Smlf read_enumerate_file(void) 60548d483882Smlf { 60558d483882Smlf FILE *fp; 60568d483882Smlf int linenum; 60578d483882Smlf char line[PATH_MAX+1]; 60588d483882Smlf enumerate_file_t *entry; 60598d483882Smlf struct stat current_sb; 60608d483882Smlf static struct stat cached_sb; 60618d483882Smlf static int cached = FALSE; 60628d483882Smlf 60638d483882Smlf assert(enumerate_file); 60648d483882Smlf 60658d483882Smlf if (stat(enumerate_file, ¤t_sb) == -1) { 60668d483882Smlf vprint(RSRV_MID, "No reserved file: %s\n", enumerate_file); 60678d483882Smlf cached = FALSE; 60688d483882Smlf if (enumerate_reserved != NULL) { 60698d483882Smlf vprint(RSRV_MID, "invalidating %s cache\n", 60708d483882Smlf enumerate_file); 60718d483882Smlf } 60728d483882Smlf while (enumerate_reserved != NULL) { 60738d483882Smlf entry = enumerate_reserved; 60748d483882Smlf enumerate_reserved = entry->er_next; 60758d483882Smlf free(entry->er_file); 60768d483882Smlf free(entry->er_id); 60778d483882Smlf free(entry); 60788d483882Smlf } 60798d483882Smlf return; 60808d483882Smlf } 60818d483882Smlf 60828d483882Smlf /* if already cached, check to see if it is still valid */ 60838d483882Smlf if (cached == TRUE) { 60848d483882Smlf 60858d483882Smlf if (current_sb.st_mtime == cached_sb.st_mtime) { 60868d483882Smlf vprint(RSRV_MID, "%s cache valid\n", enumerate_file); 60878d483882Smlf vprint(FILES_MID, "%s cache valid\n", enumerate_file); 60888d483882Smlf return; 60898d483882Smlf } 60908d483882Smlf 60918d483882Smlf vprint(RSRV_MID, "invalidating %s cache\n", enumerate_file); 60928d483882Smlf vprint(FILES_MID, "invalidating %s cache\n", enumerate_file); 60938d483882Smlf 60948d483882Smlf while (enumerate_reserved != NULL) { 60958d483882Smlf entry = enumerate_reserved; 60968d483882Smlf enumerate_reserved = entry->er_next; 60978d483882Smlf free(entry->er_file); 60988d483882Smlf free(entry->er_id); 60998d483882Smlf free(entry); 61008d483882Smlf } 61018d483882Smlf vprint(RSRV_MID, "Recaching file: %s\n", enumerate_file); 61028d483882Smlf } else { 61038d483882Smlf vprint(RSRV_MID, "Caching file (first time): %s\n", 61048d483882Smlf enumerate_file); 61058d483882Smlf cached = TRUE; 61068d483882Smlf } 61078d483882Smlf 61088d483882Smlf (void) stat(enumerate_file, &cached_sb); 61098d483882Smlf 61108d483882Smlf if ((fp = fopen(enumerate_file, "r")) == NULL) { 61118d483882Smlf err_print(FOPEN_FAILED, enumerate_file, strerror(errno)); 61128d483882Smlf return; 61138d483882Smlf } 61148d483882Smlf 61158d483882Smlf vprint(RSRV_MID, "Reading reserve file: %s\n", enumerate_file); 61168d483882Smlf linenum = 0; 61178d483882Smlf while (fgets(line, sizeof (line), fp) != NULL) { 61188d483882Smlf char *cp, *ncp; 61198d483882Smlf 61208d483882Smlf linenum++; 61218d483882Smlf 61228d483882Smlf /* remove newline */ 61238d483882Smlf cp = strchr(line, '\n'); 61248d483882Smlf if (cp) 61258d483882Smlf *cp = '\0'; 61268d483882Smlf 61270a653502Swroche vprint(RSRV_MID, "Reserve file: line %d: %s\n", linenum, line); 61288d483882Smlf 61298d483882Smlf /* skip over space and tab */ 61300a653502Swroche for (cp = line; *cp == ' ' || *cp == '\t'; cp++) 61310a653502Swroche ; 61328d483882Smlf 61338d483882Smlf if (*cp == '\0' || *cp == '#') { 61348d483882Smlf vprint(RSRV_MID, "Skipping line: '%s'\n", line); 61358d483882Smlf continue; /* blank line or comment line */ 61368d483882Smlf } 61378d483882Smlf 61388d483882Smlf ncp = cp; 61398d483882Smlf 61408d483882Smlf /* delete trailing blanks */ 61410a653502Swroche for (; *cp != ' ' && *cp != '\t' && *cp != '\0'; cp++) 61420a653502Swroche ; 61438d483882Smlf *cp = '\0'; 61448d483882Smlf 61458d483882Smlf entry = s_zalloc(sizeof (enumerate_file_t)); 61468d483882Smlf entry->er_file = s_strdup(ncp); 61478d483882Smlf entry->er_id = NULL; 61488d483882Smlf entry->er_next = enumerate_reserved; 61498d483882Smlf enumerate_reserved = entry; 61508d483882Smlf } 61518d483882Smlf 61528d483882Smlf if (fclose(fp) == EOF) { 61538d483882Smlf err_print(FCLOSE_FAILED, enumerate_file, strerror(errno)); 61548d483882Smlf } 61558d483882Smlf } 61568d483882Smlf 61577c478bd9Sstevel@tonic-gate /* 61587c478bd9Sstevel@tonic-gate * Called at devfsadm startup to read in the devlink.tab file. Creates 61597c478bd9Sstevel@tonic-gate * a linked list of devlinktab_list structures which will be 61607c478bd9Sstevel@tonic-gate * searched for every minor node. 61617c478bd9Sstevel@tonic-gate */ 61627c478bd9Sstevel@tonic-gate static void 61637c478bd9Sstevel@tonic-gate read_devlinktab_file(void) 61647c478bd9Sstevel@tonic-gate { 61657c478bd9Sstevel@tonic-gate devlinktab_list_t *headp = NULL; 61667c478bd9Sstevel@tonic-gate devlinktab_list_t *entryp; 61677c478bd9Sstevel@tonic-gate devlinktab_list_t **previous; 61687c478bd9Sstevel@tonic-gate devlinktab_list_t *save; 61691ca93273Seota char line[MAX_DEVLINK_LINE], *cp; 61707c478bd9Sstevel@tonic-gate char *selector; 61717c478bd9Sstevel@tonic-gate char *p_link; 61727c478bd9Sstevel@tonic-gate char *s_link; 61737c478bd9Sstevel@tonic-gate FILE *fp; 61747c478bd9Sstevel@tonic-gate int i; 61757c478bd9Sstevel@tonic-gate static struct stat cached_sb; 61767c478bd9Sstevel@tonic-gate struct stat current_sb; 61777c478bd9Sstevel@tonic-gate static int cached = FALSE; 61787c478bd9Sstevel@tonic-gate 61797c478bd9Sstevel@tonic-gate if (devlinktab_file == NULL) { 61807c478bd9Sstevel@tonic-gate return; 61817c478bd9Sstevel@tonic-gate } 61827c478bd9Sstevel@tonic-gate 61837c478bd9Sstevel@tonic-gate (void) stat(devlinktab_file, ¤t_sb); 61847c478bd9Sstevel@tonic-gate 61857c478bd9Sstevel@tonic-gate /* if already cached, check to see if it is still valid */ 61867c478bd9Sstevel@tonic-gate if (cached == TRUE) { 61877c478bd9Sstevel@tonic-gate 61887c478bd9Sstevel@tonic-gate if (current_sb.st_mtime == cached_sb.st_mtime) { 61897c478bd9Sstevel@tonic-gate vprint(FILES_MID, "%s cache valid\n", devlinktab_file); 61907c478bd9Sstevel@tonic-gate return; 61917c478bd9Sstevel@tonic-gate } 61927c478bd9Sstevel@tonic-gate 61937c478bd9Sstevel@tonic-gate vprint(FILES_MID, "invalidating %s cache\n", devlinktab_file); 61947c478bd9Sstevel@tonic-gate 61957c478bd9Sstevel@tonic-gate while (devlinktab_list != NULL) { 61967c478bd9Sstevel@tonic-gate free_link_list(devlinktab_list->p_link); 61977c478bd9Sstevel@tonic-gate free_link_list(devlinktab_list->s_link); 61987c478bd9Sstevel@tonic-gate free_selector_list(devlinktab_list->selector); 61997c478bd9Sstevel@tonic-gate free(devlinktab_list->selector_pattern); 62007c478bd9Sstevel@tonic-gate free(devlinktab_list->p_link_pattern); 62017c478bd9Sstevel@tonic-gate if (devlinktab_list->s_link_pattern != NULL) { 62027c478bd9Sstevel@tonic-gate free(devlinktab_list->s_link_pattern); 62037c478bd9Sstevel@tonic-gate } 62047c478bd9Sstevel@tonic-gate save = devlinktab_list; 62057c478bd9Sstevel@tonic-gate devlinktab_list = devlinktab_list->next; 62067c478bd9Sstevel@tonic-gate free(save); 62077c478bd9Sstevel@tonic-gate } 62087c478bd9Sstevel@tonic-gate } else { 62097c478bd9Sstevel@tonic-gate cached = TRUE; 62107c478bd9Sstevel@tonic-gate } 62117c478bd9Sstevel@tonic-gate 62127c478bd9Sstevel@tonic-gate (void) stat(devlinktab_file, &cached_sb); 62137c478bd9Sstevel@tonic-gate 62147c478bd9Sstevel@tonic-gate if ((fp = fopen(devlinktab_file, "r")) == NULL) { 62157c478bd9Sstevel@tonic-gate err_print(FOPEN_FAILED, devlinktab_file, strerror(errno)); 62167c478bd9Sstevel@tonic-gate return; 62177c478bd9Sstevel@tonic-gate } 62187c478bd9Sstevel@tonic-gate 62197c478bd9Sstevel@tonic-gate previous = &headp; 62207c478bd9Sstevel@tonic-gate 62217c478bd9Sstevel@tonic-gate while (fgets(line, sizeof (line), fp) != NULL) { 62227c478bd9Sstevel@tonic-gate devlinktab_line++; 62237c478bd9Sstevel@tonic-gate i = strlen(line); 62247c478bd9Sstevel@tonic-gate if (line[i-1] == NEWLINE) { 62257c478bd9Sstevel@tonic-gate line[i-1] = '\0'; 62267c478bd9Sstevel@tonic-gate } else if (i == sizeof (line-1)) { 62277c478bd9Sstevel@tonic-gate err_print(LINE_TOO_LONG, devlinktab_line, 62287c478bd9Sstevel@tonic-gate devlinktab_file, sizeof (line)-1); 62290a653502Swroche while (((i = getc(fp)) != '\n') && (i != EOF)) 62300a653502Swroche ; 62317c478bd9Sstevel@tonic-gate continue; 62327c478bd9Sstevel@tonic-gate } 62337c478bd9Sstevel@tonic-gate 62341ca93273Seota /* cut off comments starting with '#' */ 62351ca93273Seota if ((cp = strchr(line, '#')) != NULL) 62361ca93273Seota *cp = '\0'; 62371ca93273Seota /* ignore comment or blank lines */ 62381ca93273Seota if (is_blank(line)) 62397c478bd9Sstevel@tonic-gate continue; 62407c478bd9Sstevel@tonic-gate 62417c478bd9Sstevel@tonic-gate vprint(DEVLINK_MID, "table: %s line %d: '%s'\n", 62420a653502Swroche devlinktab_file, devlinktab_line, line); 62437c478bd9Sstevel@tonic-gate 62447c478bd9Sstevel@tonic-gate /* break each entry into fields. s_link may be NULL */ 62457c478bd9Sstevel@tonic-gate if (split_devlinktab_entry(line, &selector, &p_link, 62467c478bd9Sstevel@tonic-gate &s_link) == DEVFSADM_FAILURE) { 62477c478bd9Sstevel@tonic-gate vprint(DEVLINK_MID, "split_entry returns failure\n"); 62487c478bd9Sstevel@tonic-gate continue; 62497c478bd9Sstevel@tonic-gate } else { 62507c478bd9Sstevel@tonic-gate vprint(DEVLINK_MID, "split_entry selector='%s' " 62510a653502Swroche "p_link='%s' s_link='%s'\n\n", selector, 62520a653502Swroche p_link, (s_link == NULL) ? "" : s_link); 62537c478bd9Sstevel@tonic-gate } 62547c478bd9Sstevel@tonic-gate 62550a653502Swroche entryp = 62560a653502Swroche (devlinktab_list_t *)s_malloc(sizeof (devlinktab_list_t)); 62577c478bd9Sstevel@tonic-gate 62587c478bd9Sstevel@tonic-gate entryp->line_number = devlinktab_line; 62597c478bd9Sstevel@tonic-gate 62600a653502Swroche if ((entryp->selector = create_selector_list(selector)) 62610a653502Swroche == NULL) { 62627c478bd9Sstevel@tonic-gate free(entryp); 62637c478bd9Sstevel@tonic-gate continue; 62647c478bd9Sstevel@tonic-gate } 62657c478bd9Sstevel@tonic-gate entryp->selector_pattern = s_strdup(selector); 62667c478bd9Sstevel@tonic-gate 62677c478bd9Sstevel@tonic-gate if ((entryp->p_link = create_link_list(p_link)) == NULL) { 62687c478bd9Sstevel@tonic-gate free_selector_list(entryp->selector); 62697c478bd9Sstevel@tonic-gate free(entryp->selector_pattern); 62707c478bd9Sstevel@tonic-gate free(entryp); 62717c478bd9Sstevel@tonic-gate continue; 62727c478bd9Sstevel@tonic-gate } 62737c478bd9Sstevel@tonic-gate 62747c478bd9Sstevel@tonic-gate entryp->p_link_pattern = s_strdup(p_link); 62757c478bd9Sstevel@tonic-gate 62767c478bd9Sstevel@tonic-gate if (s_link != NULL) { 62777c478bd9Sstevel@tonic-gate if ((entryp->s_link = 62787c478bd9Sstevel@tonic-gate create_link_list(s_link)) == NULL) { 62797c478bd9Sstevel@tonic-gate free_selector_list(entryp->selector); 62807c478bd9Sstevel@tonic-gate free_link_list(entryp->p_link); 62817c478bd9Sstevel@tonic-gate free(entryp->selector_pattern); 62827c478bd9Sstevel@tonic-gate free(entryp->p_link_pattern); 62837c478bd9Sstevel@tonic-gate free(entryp); 62847c478bd9Sstevel@tonic-gate continue; 62857c478bd9Sstevel@tonic-gate } 62860a653502Swroche entryp->s_link_pattern = s_strdup(s_link); 62877c478bd9Sstevel@tonic-gate } else { 62887c478bd9Sstevel@tonic-gate entryp->s_link = NULL; 62897c478bd9Sstevel@tonic-gate entryp->s_link_pattern = NULL; 62907c478bd9Sstevel@tonic-gate 62917c478bd9Sstevel@tonic-gate } 62927c478bd9Sstevel@tonic-gate 62937c478bd9Sstevel@tonic-gate /* append to end of list */ 62947c478bd9Sstevel@tonic-gate 62957c478bd9Sstevel@tonic-gate entryp->next = NULL; 62967c478bd9Sstevel@tonic-gate *previous = entryp; 62977c478bd9Sstevel@tonic-gate previous = &(entryp->next); 62987c478bd9Sstevel@tonic-gate } 62997c478bd9Sstevel@tonic-gate if (fclose(fp) == EOF) { 63007c478bd9Sstevel@tonic-gate err_print(FCLOSE_FAILED, devlinktab_file, strerror(errno)); 63017c478bd9Sstevel@tonic-gate } 63027c478bd9Sstevel@tonic-gate devlinktab_list = headp; 63037c478bd9Sstevel@tonic-gate } 63047c478bd9Sstevel@tonic-gate 63057c478bd9Sstevel@tonic-gate /* 63067c478bd9Sstevel@tonic-gate * 63077c478bd9Sstevel@tonic-gate * For a single line entry in devlink.tab, split the line into fields 63087c478bd9Sstevel@tonic-gate * selector, p_link, and an optionally s_link. If s_link field is not 63097c478bd9Sstevel@tonic-gate * present, then return NULL in s_link (not NULL string). 63107c478bd9Sstevel@tonic-gate */ 63117c478bd9Sstevel@tonic-gate static int 63127c478bd9Sstevel@tonic-gate split_devlinktab_entry(char *entry, char **selector, char **p_link, 63137c478bd9Sstevel@tonic-gate char **s_link) 63147c478bd9Sstevel@tonic-gate { 63157c478bd9Sstevel@tonic-gate char *tab; 63167c478bd9Sstevel@tonic-gate 63177c478bd9Sstevel@tonic-gate *selector = entry; 63187c478bd9Sstevel@tonic-gate 63197c478bd9Sstevel@tonic-gate if ((tab = strchr(entry, TAB)) != NULL) { 63207c478bd9Sstevel@tonic-gate *tab = '\0'; 63217c478bd9Sstevel@tonic-gate *p_link = ++tab; 63227c478bd9Sstevel@tonic-gate } else { 63237c478bd9Sstevel@tonic-gate err_print(MISSING_TAB, devlinktab_line, devlinktab_file); 63247c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 63257c478bd9Sstevel@tonic-gate } 63267c478bd9Sstevel@tonic-gate 63277c478bd9Sstevel@tonic-gate if (*p_link == '\0') { 63287c478bd9Sstevel@tonic-gate err_print(MISSING_DEVNAME, devlinktab_line, devlinktab_file); 63297c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 63307c478bd9Sstevel@tonic-gate } 63317c478bd9Sstevel@tonic-gate 63327c478bd9Sstevel@tonic-gate if ((tab = strchr(*p_link, TAB)) != NULL) { 63337c478bd9Sstevel@tonic-gate *tab = '\0'; 63347c478bd9Sstevel@tonic-gate *s_link = ++tab; 63357c478bd9Sstevel@tonic-gate if (strchr(*s_link, TAB) != NULL) { 63367c478bd9Sstevel@tonic-gate err_print(TOO_MANY_FIELDS, devlinktab_line, 63370a653502Swroche devlinktab_file); 63387c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 63397c478bd9Sstevel@tonic-gate } 63407c478bd9Sstevel@tonic-gate } else { 63417c478bd9Sstevel@tonic-gate *s_link = NULL; 63427c478bd9Sstevel@tonic-gate } 63437c478bd9Sstevel@tonic-gate 63447c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 63457c478bd9Sstevel@tonic-gate } 63467c478bd9Sstevel@tonic-gate 63477c478bd9Sstevel@tonic-gate /* 63487c478bd9Sstevel@tonic-gate * For a given devfs_spec field, for each element in the field, add it to 63497c478bd9Sstevel@tonic-gate * a linked list of devfs_spec structures. Return the linked list in 63507c478bd9Sstevel@tonic-gate * devfs_spec_list. 63517c478bd9Sstevel@tonic-gate */ 63527c478bd9Sstevel@tonic-gate static selector_list_t * 63537c478bd9Sstevel@tonic-gate create_selector_list(char *selector) 63547c478bd9Sstevel@tonic-gate { 63550a653502Swroche char *key; 63560a653502Swroche char *val; 63570a653502Swroche int error = FALSE; 63580a653502Swroche selector_list_t *head_selector_list = NULL; 63590a653502Swroche selector_list_t *selector_list; 63600a653502Swroche 63610a653502Swroche /* parse_devfs_spec splits the next field into keyword & value */ 63620a653502Swroche while ((*selector != NULL) && (error == FALSE)) { 63630a653502Swroche if (parse_selector(&selector, &key, &val) == DEVFSADM_FAILURE) { 63640a653502Swroche error = TRUE; 63650a653502Swroche break; 63660a653502Swroche } else { 63670a653502Swroche selector_list = (selector_list_t *) 63680a653502Swroche s_malloc(sizeof (selector_list_t)); 63690a653502Swroche if (strcmp(NAME_S, key) == 0) { 63700a653502Swroche selector_list->key = NAME; 63710a653502Swroche } else if (strcmp(TYPE_S, key) == 0) { 63720a653502Swroche selector_list->key = TYPE; 63730a653502Swroche } else if (strncmp(ADDR_S, key, ADDR_S_LEN) == 0) { 63740a653502Swroche selector_list->key = ADDR; 63750a653502Swroche if (key[ADDR_S_LEN] == '\0') { 63760a653502Swroche selector_list->arg = 0; 63770a653502Swroche } else if (isdigit(key[ADDR_S_LEN]) != FALSE) { 63780a653502Swroche selector_list->arg = 63790a653502Swroche atoi(&key[ADDR_S_LEN]); 63800a653502Swroche } else { 63810a653502Swroche error = TRUE; 63820a653502Swroche free(selector_list); 63830a653502Swroche err_print(BADKEYWORD, key, 63840a653502Swroche devlinktab_line, devlinktab_file); 63850a653502Swroche break; 63860a653502Swroche } 63870a653502Swroche } else if (strncmp(MINOR_S, key, MINOR_S_LEN) == 0) { 63880a653502Swroche selector_list->key = MINOR; 63890a653502Swroche if (key[MINOR_S_LEN] == '\0') { 63900a653502Swroche selector_list->arg = 0; 63910a653502Swroche } else if (isdigit(key[MINOR_S_LEN]) != FALSE) { 63920a653502Swroche selector_list->arg = 63930a653502Swroche atoi(&key[MINOR_S_LEN]); 63940a653502Swroche } else { 63950a653502Swroche error = TRUE; 63960a653502Swroche free(selector_list); 63970a653502Swroche err_print(BADKEYWORD, key, 63980a653502Swroche devlinktab_line, devlinktab_file); 63990a653502Swroche break; 64000a653502Swroche } 64010a653502Swroche vprint(DEVLINK_MID, "MINOR = %s\n", val); 64020a653502Swroche } else { 64030a653502Swroche err_print(UNRECOGNIZED_KEY, key, 64040a653502Swroche devlinktab_line, devlinktab_file); 64050a653502Swroche error = TRUE; 64060a653502Swroche free(selector_list); 64070a653502Swroche break; 64080a653502Swroche } 64090a653502Swroche selector_list->val = s_strdup(val); 64100a653502Swroche selector_list->next = head_selector_list; 64110a653502Swroche head_selector_list = selector_list; 64120a653502Swroche vprint(DEVLINK_MID, "key='%s' val='%s' arg=%d\n", 64130a653502Swroche key, val, selector_list->arg); 64140a653502Swroche } 64150a653502Swroche } 64160a653502Swroche 64170a653502Swroche if ((error == FALSE) && (head_selector_list != NULL)) { 64180a653502Swroche return (head_selector_list); 64190a653502Swroche } else { 64200a653502Swroche /* parse failed. Free any allocated structs */ 64210a653502Swroche free_selector_list(head_selector_list); 64220a653502Swroche return (NULL); 64230a653502Swroche } 64247c478bd9Sstevel@tonic-gate } 64257c478bd9Sstevel@tonic-gate 64267c478bd9Sstevel@tonic-gate /* 64277c478bd9Sstevel@tonic-gate * Takes a semicolon separated list of selector elements and breaks up 64287c478bd9Sstevel@tonic-gate * into a keyword-value pair. semicolon and equal characters are 64297c478bd9Sstevel@tonic-gate * replaced with NULL's. On success, selector is updated to point to the 64307c478bd9Sstevel@tonic-gate * terminating NULL character terminating the keyword-value pair, and the 64317c478bd9Sstevel@tonic-gate * function returns DEVFSADM_SUCCESS. If there is a syntax error, 64327c478bd9Sstevel@tonic-gate * devfs_spec is not modified and function returns DEVFSADM_FAILURE. 64337c478bd9Sstevel@tonic-gate */ 64347c478bd9Sstevel@tonic-gate static int 64357c478bd9Sstevel@tonic-gate parse_selector(char **selector, char **key, char **val) 64367c478bd9Sstevel@tonic-gate { 64377c478bd9Sstevel@tonic-gate char *equal; 64387c478bd9Sstevel@tonic-gate char *semi_colon; 64397c478bd9Sstevel@tonic-gate 64407c478bd9Sstevel@tonic-gate *key = *selector; 64417c478bd9Sstevel@tonic-gate 64427c478bd9Sstevel@tonic-gate if ((equal = strchr(*key, '=')) != NULL) { 64437c478bd9Sstevel@tonic-gate *equal = '\0'; 64447c478bd9Sstevel@tonic-gate } else { 64457c478bd9Sstevel@tonic-gate err_print(MISSING_EQUAL, devlinktab_line, devlinktab_file); 64467c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 64477c478bd9Sstevel@tonic-gate } 64487c478bd9Sstevel@tonic-gate 64497c478bd9Sstevel@tonic-gate *val = ++equal; 64507c478bd9Sstevel@tonic-gate if ((semi_colon = strchr(equal, ';')) != NULL) { 64517c478bd9Sstevel@tonic-gate *semi_colon = '\0'; 64527c478bd9Sstevel@tonic-gate *selector = semi_colon + 1; 64537c478bd9Sstevel@tonic-gate } else { 64547c478bd9Sstevel@tonic-gate *selector = equal + strlen(equal); 64557c478bd9Sstevel@tonic-gate } 64567c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 64577c478bd9Sstevel@tonic-gate } 64587c478bd9Sstevel@tonic-gate 64597c478bd9Sstevel@tonic-gate /* 64607c478bd9Sstevel@tonic-gate * link is either the second or third field of devlink.tab. Parse link 64617c478bd9Sstevel@tonic-gate * into a linked list of devlink structures and return ptr to list. Each 64627c478bd9Sstevel@tonic-gate * list element is either a constant string, or one of the following 64637c478bd9Sstevel@tonic-gate * escape sequences: \M, \A, \N, or \D. The first three escape sequences 64647c478bd9Sstevel@tonic-gate * take a numerical argument. 64657c478bd9Sstevel@tonic-gate */ 64667c478bd9Sstevel@tonic-gate static link_list_t * 64677c478bd9Sstevel@tonic-gate create_link_list(char *link) 64687c478bd9Sstevel@tonic-gate { 64697c478bd9Sstevel@tonic-gate int x = 0; 64707c478bd9Sstevel@tonic-gate int error = FALSE; 64717c478bd9Sstevel@tonic-gate int counter_found = FALSE; 64727c478bd9Sstevel@tonic-gate link_list_t *head = NULL; 64737c478bd9Sstevel@tonic-gate link_list_t **ptr; 64747c478bd9Sstevel@tonic-gate link_list_t *link_list; 64757c478bd9Sstevel@tonic-gate char constant[MAX_DEVLINK_LINE]; 64767c478bd9Sstevel@tonic-gate char *error_str; 64777c478bd9Sstevel@tonic-gate 64787c478bd9Sstevel@tonic-gate if (link == NULL) { 64797c478bd9Sstevel@tonic-gate return (NULL); 64807c478bd9Sstevel@tonic-gate } 64817c478bd9Sstevel@tonic-gate 64827c478bd9Sstevel@tonic-gate while ((*link != '\0') && (error == FALSE)) { 64837c478bd9Sstevel@tonic-gate link_list = (link_list_t *)s_malloc(sizeof (link_list_t)); 64847c478bd9Sstevel@tonic-gate link_list->next = NULL; 64857c478bd9Sstevel@tonic-gate 64867c478bd9Sstevel@tonic-gate while ((*link != '\0') && (*link != '\\')) { 64877c478bd9Sstevel@tonic-gate /* a non-escaped string */ 64887c478bd9Sstevel@tonic-gate constant[x++] = *(link++); 64897c478bd9Sstevel@tonic-gate } 64907c478bd9Sstevel@tonic-gate if (x != 0) { 64917c478bd9Sstevel@tonic-gate constant[x] = '\0'; 64927c478bd9Sstevel@tonic-gate link_list->type = CONSTANT; 64937c478bd9Sstevel@tonic-gate link_list->constant = s_strdup(constant); 64947c478bd9Sstevel@tonic-gate x = 0; 64957c478bd9Sstevel@tonic-gate vprint(DEVLINK_MID, "CONSTANT FOUND %s\n", constant); 64967c478bd9Sstevel@tonic-gate } else { 64977c478bd9Sstevel@tonic-gate switch (*(++link)) { 64987c478bd9Sstevel@tonic-gate case 'M': 64997c478bd9Sstevel@tonic-gate link_list->type = MINOR; 65007c478bd9Sstevel@tonic-gate break; 65017c478bd9Sstevel@tonic-gate case 'A': 65027c478bd9Sstevel@tonic-gate link_list->type = ADDR; 65037c478bd9Sstevel@tonic-gate break; 65047c478bd9Sstevel@tonic-gate case 'N': 65057c478bd9Sstevel@tonic-gate if (counter_found == TRUE) { 65067c478bd9Sstevel@tonic-gate error = TRUE; 65070a653502Swroche error_str = 65080a653502Swroche "multiple counters not permitted"; 65097c478bd9Sstevel@tonic-gate free(link_list); 65107c478bd9Sstevel@tonic-gate } else { 65117c478bd9Sstevel@tonic-gate counter_found = TRUE; 65127c478bd9Sstevel@tonic-gate link_list->type = COUNTER; 65137c478bd9Sstevel@tonic-gate } 65147c478bd9Sstevel@tonic-gate break; 65157c478bd9Sstevel@tonic-gate case 'D': 65167c478bd9Sstevel@tonic-gate link_list->type = NAME; 65177c478bd9Sstevel@tonic-gate break; 65187c478bd9Sstevel@tonic-gate default: 65197c478bd9Sstevel@tonic-gate error = TRUE; 65207c478bd9Sstevel@tonic-gate free(link_list); 65217c478bd9Sstevel@tonic-gate error_str = "unrecognized escape sequence"; 65227c478bd9Sstevel@tonic-gate break; 65237c478bd9Sstevel@tonic-gate } 65247c478bd9Sstevel@tonic-gate if (*(link++) != 'D') { 65257c478bd9Sstevel@tonic-gate if (isdigit(*link) == FALSE) { 65267c478bd9Sstevel@tonic-gate error_str = "escape sequence must be " 65270a653502Swroche "followed by a digit\n"; 65287c478bd9Sstevel@tonic-gate error = TRUE; 65297c478bd9Sstevel@tonic-gate free(link_list); 65307c478bd9Sstevel@tonic-gate } else { 65317c478bd9Sstevel@tonic-gate link_list->arg = 65320a653502Swroche (int)strtoul(link, &link, 10); 65337c478bd9Sstevel@tonic-gate vprint(DEVLINK_MID, "link_list->arg = " 65340a653502Swroche "%d\n", link_list->arg); 65357c478bd9Sstevel@tonic-gate } 65367c478bd9Sstevel@tonic-gate } 65377c478bd9Sstevel@tonic-gate } 65387c478bd9Sstevel@tonic-gate /* append link_list struct to end of list */ 65397c478bd9Sstevel@tonic-gate if (error == FALSE) { 65400a653502Swroche for (ptr = &head; *ptr != NULL; ptr = &((*ptr)->next)) 65410a653502Swroche ; 65427c478bd9Sstevel@tonic-gate *ptr = link_list; 65437c478bd9Sstevel@tonic-gate } 65447c478bd9Sstevel@tonic-gate } 65457c478bd9Sstevel@tonic-gate 65467c478bd9Sstevel@tonic-gate if (error == FALSE) { 65477c478bd9Sstevel@tonic-gate return (head); 65487c478bd9Sstevel@tonic-gate } else { 65497c478bd9Sstevel@tonic-gate err_print(CONFIG_INCORRECT, devlinktab_line, devlinktab_file, 65507c478bd9Sstevel@tonic-gate error_str); 65517c478bd9Sstevel@tonic-gate free_link_list(head); 65527c478bd9Sstevel@tonic-gate return (NULL); 65537c478bd9Sstevel@tonic-gate } 65547c478bd9Sstevel@tonic-gate } 65557c478bd9Sstevel@tonic-gate 65567c478bd9Sstevel@tonic-gate /* 65577c478bd9Sstevel@tonic-gate * Called for each minor node devfsadm processes; for each minor node, 65587c478bd9Sstevel@tonic-gate * look for matches in the devlinktab_list list which was created on 65597c478bd9Sstevel@tonic-gate * startup read_devlinktab_file(). If there is a match, call build_links() 65607c478bd9Sstevel@tonic-gate * to build a logical devlink and a possible extra devlink. 65617c478bd9Sstevel@tonic-gate */ 65627c478bd9Sstevel@tonic-gate static int 65637c478bd9Sstevel@tonic-gate process_devlink_compat(di_minor_t minor, di_node_t node) 65647c478bd9Sstevel@tonic-gate { 65657c478bd9Sstevel@tonic-gate int link_built = FALSE; 65667c478bd9Sstevel@tonic-gate devlinktab_list_t *entry; 65677c478bd9Sstevel@tonic-gate char *nodetype; 65687c478bd9Sstevel@tonic-gate char *dev_path; 65697c478bd9Sstevel@tonic-gate 65707c478bd9Sstevel@tonic-gate if (devlinks_debug == TRUE) { 65717c478bd9Sstevel@tonic-gate nodetype = di_minor_nodetype(minor); 65727c478bd9Sstevel@tonic-gate assert(nodetype != NULL); 65737c478bd9Sstevel@tonic-gate if ((dev_path = di_devfs_path(node)) != NULL) { 65740a653502Swroche vprint(INFO_MID, "'%s' entry: %s:%s\n", 65750a653502Swroche nodetype, dev_path, 65760a653502Swroche di_minor_name(minor) ? di_minor_name(minor) : ""); 65777c478bd9Sstevel@tonic-gate di_devfs_path_free(dev_path); 65787c478bd9Sstevel@tonic-gate } 65797c478bd9Sstevel@tonic-gate 65807c478bd9Sstevel@tonic-gate } 65817c478bd9Sstevel@tonic-gate 65827c478bd9Sstevel@tonic-gate 65837c478bd9Sstevel@tonic-gate /* don't process devlink.tab if devfsadm invoked with -c <class> */ 65847c478bd9Sstevel@tonic-gate if (num_classes > 0) { 65857c478bd9Sstevel@tonic-gate return (FALSE); 65867c478bd9Sstevel@tonic-gate } 65877c478bd9Sstevel@tonic-gate 65887c478bd9Sstevel@tonic-gate for (entry = devlinktab_list; entry != NULL; entry = entry->next) { 65897c478bd9Sstevel@tonic-gate if (devlink_matches(entry, minor, node) == DEVFSADM_SUCCESS) { 65907c478bd9Sstevel@tonic-gate link_built = TRUE; 65917c478bd9Sstevel@tonic-gate (void) build_links(entry, minor, node); 65927c478bd9Sstevel@tonic-gate } 65937c478bd9Sstevel@tonic-gate } 65947c478bd9Sstevel@tonic-gate return (link_built); 65957c478bd9Sstevel@tonic-gate } 65967c478bd9Sstevel@tonic-gate 65977c478bd9Sstevel@tonic-gate /* 65987c478bd9Sstevel@tonic-gate * For a given devlink.tab devlinktab_list entry, see if the selector 65997c478bd9Sstevel@tonic-gate * field matches this minor node. If it does, return DEVFSADM_SUCCESS, 66007c478bd9Sstevel@tonic-gate * otherwise DEVFSADM_FAILURE. 66017c478bd9Sstevel@tonic-gate */ 66027c478bd9Sstevel@tonic-gate static int 66037c478bd9Sstevel@tonic-gate devlink_matches(devlinktab_list_t *entry, di_minor_t minor, di_node_t node) 66047c478bd9Sstevel@tonic-gate { 66057c478bd9Sstevel@tonic-gate selector_list_t *selector = entry->selector; 66067c478bd9Sstevel@tonic-gate char *addr; 66077c478bd9Sstevel@tonic-gate char *minor_name; 66087c478bd9Sstevel@tonic-gate char *node_type; 66097c478bd9Sstevel@tonic-gate 66107c478bd9Sstevel@tonic-gate for (; selector != NULL; selector = selector->next) { 66117c478bd9Sstevel@tonic-gate switch (selector->key) { 66127c478bd9Sstevel@tonic-gate case NAME: 66137c478bd9Sstevel@tonic-gate if (strcmp(di_node_name(node), selector->val) != 0) { 66147c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 66157c478bd9Sstevel@tonic-gate } 66167c478bd9Sstevel@tonic-gate break; 66177c478bd9Sstevel@tonic-gate case TYPE: 66187c478bd9Sstevel@tonic-gate node_type = di_minor_nodetype(minor); 66197c478bd9Sstevel@tonic-gate assert(node_type != NULL); 66207c478bd9Sstevel@tonic-gate if (strcmp(node_type, selector->val) != 0) { 66217c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 66227c478bd9Sstevel@tonic-gate } 66237c478bd9Sstevel@tonic-gate break; 66247c478bd9Sstevel@tonic-gate case ADDR: 66257c478bd9Sstevel@tonic-gate if ((addr = di_bus_addr(node)) == NULL) { 66267c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 66277c478bd9Sstevel@tonic-gate } 66287c478bd9Sstevel@tonic-gate if (selector->arg == 0) { 66297c478bd9Sstevel@tonic-gate if (strcmp(addr, selector->val) != 0) { 66307c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 66317c478bd9Sstevel@tonic-gate } 66327c478bd9Sstevel@tonic-gate } else { 66337c478bd9Sstevel@tonic-gate if (compare_field(addr, selector->val, 66347c478bd9Sstevel@tonic-gate selector->arg) == DEVFSADM_FAILURE) { 66357c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 66367c478bd9Sstevel@tonic-gate } 66377c478bd9Sstevel@tonic-gate } 66387c478bd9Sstevel@tonic-gate break; 66397c478bd9Sstevel@tonic-gate case MINOR: 66407c478bd9Sstevel@tonic-gate if ((minor_name = di_minor_name(minor)) == NULL) { 66417c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 66427c478bd9Sstevel@tonic-gate } 66437c478bd9Sstevel@tonic-gate if (selector->arg == 0) { 66447c478bd9Sstevel@tonic-gate if (strcmp(minor_name, selector->val) != 0) { 66457c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 66467c478bd9Sstevel@tonic-gate } 66477c478bd9Sstevel@tonic-gate } else { 66487c478bd9Sstevel@tonic-gate if (compare_field(minor_name, selector->val, 66490a653502Swroche selector->arg) == DEVFSADM_FAILURE) { 66507c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 66517c478bd9Sstevel@tonic-gate } 66527c478bd9Sstevel@tonic-gate } 66537c478bd9Sstevel@tonic-gate break; 66547c478bd9Sstevel@tonic-gate default: 66557c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 66567c478bd9Sstevel@tonic-gate } 66577c478bd9Sstevel@tonic-gate } 66587c478bd9Sstevel@tonic-gate 66597c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 66607c478bd9Sstevel@tonic-gate } 66617c478bd9Sstevel@tonic-gate 66627c478bd9Sstevel@tonic-gate /* 66637c478bd9Sstevel@tonic-gate * For the given minor node and devlinktab_list entry from devlink.tab, 66647c478bd9Sstevel@tonic-gate * build a logical dev link and a possible extra devlink. 66657c478bd9Sstevel@tonic-gate * Return DEVFSADM_SUCCESS if link is created, otherwise DEVFSADM_FAILURE. 66667c478bd9Sstevel@tonic-gate */ 66677c478bd9Sstevel@tonic-gate static int 66687c478bd9Sstevel@tonic-gate build_links(devlinktab_list_t *entry, di_minor_t minor, di_node_t node) 66697c478bd9Sstevel@tonic-gate { 66707c478bd9Sstevel@tonic-gate char secondary_link[PATH_MAX + 1]; 66717c478bd9Sstevel@tonic-gate char primary_link[PATH_MAX + 1]; 66727c478bd9Sstevel@tonic-gate char contents[PATH_MAX + 1]; 66737c478bd9Sstevel@tonic-gate char *dev_path; 66747c478bd9Sstevel@tonic-gate 66757c478bd9Sstevel@tonic-gate if ((dev_path = di_devfs_path(node)) == NULL) { 66767c478bd9Sstevel@tonic-gate err_print(DI_DEVFS_PATH_FAILED, strerror(errno)); 66777c478bd9Sstevel@tonic-gate devfsadm_exit(1); 6678537714daSvikram /*NOTREACHED*/ 66797c478bd9Sstevel@tonic-gate } 66807c478bd9Sstevel@tonic-gate (void) strcpy(contents, dev_path); 66817c478bd9Sstevel@tonic-gate di_devfs_path_free(dev_path); 66827c478bd9Sstevel@tonic-gate 66837c478bd9Sstevel@tonic-gate (void) strcat(contents, ":"); 66847c478bd9Sstevel@tonic-gate (void) strcat(contents, di_minor_name(minor)); 66857c478bd9Sstevel@tonic-gate 66867c478bd9Sstevel@tonic-gate if (construct_devlink(primary_link, entry->p_link, contents, 66870a653502Swroche minor, node, entry->p_link_pattern) == DEVFSADM_FAILURE) { 66887c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 66897c478bd9Sstevel@tonic-gate } 66907c478bd9Sstevel@tonic-gate (void) devfsadm_mklink(primary_link, node, minor, 0); 66917c478bd9Sstevel@tonic-gate 66927c478bd9Sstevel@tonic-gate if (entry->s_link == NULL) { 66937c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 66947c478bd9Sstevel@tonic-gate } 66957c478bd9Sstevel@tonic-gate 66960a653502Swroche if (construct_devlink(secondary_link, entry->s_link, primary_link, 66970a653502Swroche minor, node, entry->s_link_pattern) == DEVFSADM_FAILURE) { 66987c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 66997c478bd9Sstevel@tonic-gate } 67007c478bd9Sstevel@tonic-gate 67017c478bd9Sstevel@tonic-gate (void) devfsadm_secondary_link(secondary_link, primary_link, 0); 67027c478bd9Sstevel@tonic-gate 67037c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 67047c478bd9Sstevel@tonic-gate } 67057c478bd9Sstevel@tonic-gate 67067c478bd9Sstevel@tonic-gate /* 67077c478bd9Sstevel@tonic-gate * The counter rule for devlink.tab entries is implemented via 67087c478bd9Sstevel@tonic-gate * devfsadm_enumerate_int_start(). One of the arguments to this function 67097c478bd9Sstevel@tonic-gate * is a path, where each path component is treated as a regular expression. 67107c478bd9Sstevel@tonic-gate * For devlink.tab entries, this path regular expression is derived from 67117c478bd9Sstevel@tonic-gate * the devlink spec. get_anchored_re() accepts path regular expressions derived 67127c478bd9Sstevel@tonic-gate * from devlink.tab entries and inserts the anchors '^' and '$' at the beginning 67137c478bd9Sstevel@tonic-gate * and end respectively of each path component. This is done to prevent 67147c478bd9Sstevel@tonic-gate * false matches. For example, without anchors, "a/([0-9]+)" will match "ab/c9" 67157c478bd9Sstevel@tonic-gate * and incorrect links will be generated. 67167c478bd9Sstevel@tonic-gate */ 67177c478bd9Sstevel@tonic-gate static int 67187c478bd9Sstevel@tonic-gate get_anchored_re(char *link, char *anchored_re, char *pattern) 67197c478bd9Sstevel@tonic-gate { 67207c478bd9Sstevel@tonic-gate if (*link == '/' || *link == '\0') { 67217c478bd9Sstevel@tonic-gate err_print(INVALID_DEVLINK_SPEC, pattern); 67227c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 67237c478bd9Sstevel@tonic-gate } 67247c478bd9Sstevel@tonic-gate 67257c478bd9Sstevel@tonic-gate *anchored_re++ = '^'; 67267c478bd9Sstevel@tonic-gate for (; *link != '\0'; ) { 67277c478bd9Sstevel@tonic-gate if (*link == '/') { 67287c478bd9Sstevel@tonic-gate while (*link == '/') 67297c478bd9Sstevel@tonic-gate link++; 67307c478bd9Sstevel@tonic-gate *anchored_re++ = '$'; 67317c478bd9Sstevel@tonic-gate *anchored_re++ = '/'; 67327c478bd9Sstevel@tonic-gate if (*link != '\0') { 67337c478bd9Sstevel@tonic-gate *anchored_re++ = '^'; 67347c478bd9Sstevel@tonic-gate } 67357c478bd9Sstevel@tonic-gate } else { 67367c478bd9Sstevel@tonic-gate *anchored_re++ = *link++; 67377c478bd9Sstevel@tonic-gate if (*link == '\0') { 67387c478bd9Sstevel@tonic-gate *anchored_re++ = '$'; 67397c478bd9Sstevel@tonic-gate } 67407c478bd9Sstevel@tonic-gate } 67417c478bd9Sstevel@tonic-gate } 67427c478bd9Sstevel@tonic-gate *anchored_re = '\0'; 67437c478bd9Sstevel@tonic-gate 67447c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 67457c478bd9Sstevel@tonic-gate } 67467c478bd9Sstevel@tonic-gate 67477c478bd9Sstevel@tonic-gate static int 67487c478bd9Sstevel@tonic-gate construct_devlink(char *link, link_list_t *link_build, char *contents, 67497c478bd9Sstevel@tonic-gate di_minor_t minor, di_node_t node, char *pattern) 67507c478bd9Sstevel@tonic-gate { 67517c478bd9Sstevel@tonic-gate int counter_offset = -1; 67527c478bd9Sstevel@tonic-gate devfsadm_enumerate_t rules[1] = {NULL}; 67537c478bd9Sstevel@tonic-gate char templink[PATH_MAX + 1]; 67547c478bd9Sstevel@tonic-gate char *buff; 67557c478bd9Sstevel@tonic-gate char start[10]; 67567c478bd9Sstevel@tonic-gate char *node_path; 67577c478bd9Sstevel@tonic-gate char anchored_re[PATH_MAX + 1]; 67587c478bd9Sstevel@tonic-gate 67597c478bd9Sstevel@tonic-gate link[0] = '\0'; 67607c478bd9Sstevel@tonic-gate 67617c478bd9Sstevel@tonic-gate for (; link_build != NULL; link_build = link_build->next) { 67627c478bd9Sstevel@tonic-gate switch (link_build->type) { 67637c478bd9Sstevel@tonic-gate case NAME: 67647c478bd9Sstevel@tonic-gate (void) strcat(link, di_node_name(node)); 67657c478bd9Sstevel@tonic-gate break; 67667c478bd9Sstevel@tonic-gate case CONSTANT: 67677c478bd9Sstevel@tonic-gate (void) strcat(link, link_build->constant); 67687c478bd9Sstevel@tonic-gate break; 67697c478bd9Sstevel@tonic-gate case ADDR: 67707c478bd9Sstevel@tonic-gate if (component_cat(link, di_bus_addr(node), 67710a653502Swroche link_build->arg) == DEVFSADM_FAILURE) { 67727c478bd9Sstevel@tonic-gate node_path = di_devfs_path(node); 67737c478bd9Sstevel@tonic-gate err_print(CANNOT_BE_USED, pattern, node_path, 67740a653502Swroche di_minor_name(minor)); 67757c478bd9Sstevel@tonic-gate di_devfs_path_free(node_path); 67767c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 67777c478bd9Sstevel@tonic-gate } 67787c478bd9Sstevel@tonic-gate break; 67797c478bd9Sstevel@tonic-gate case MINOR: 67807c478bd9Sstevel@tonic-gate if (component_cat(link, di_minor_name(minor), 67810a653502Swroche link_build->arg) == DEVFSADM_FAILURE) { 67827c478bd9Sstevel@tonic-gate node_path = di_devfs_path(node); 67837c478bd9Sstevel@tonic-gate err_print(CANNOT_BE_USED, pattern, node_path, 67840a653502Swroche di_minor_name(minor)); 67857c478bd9Sstevel@tonic-gate di_devfs_path_free(node_path); 67867c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 67877c478bd9Sstevel@tonic-gate } 67887c478bd9Sstevel@tonic-gate break; 67897c478bd9Sstevel@tonic-gate case COUNTER: 67907c478bd9Sstevel@tonic-gate counter_offset = strlen(link); 67917c478bd9Sstevel@tonic-gate (void) strcat(link, "([0-9]+)"); 67927c478bd9Sstevel@tonic-gate (void) sprintf(start, "%d", link_build->arg); 67937c478bd9Sstevel@tonic-gate break; 67947c478bd9Sstevel@tonic-gate default: 67957c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 67967c478bd9Sstevel@tonic-gate } 67977c478bd9Sstevel@tonic-gate } 67987c478bd9Sstevel@tonic-gate 67997c478bd9Sstevel@tonic-gate if (counter_offset != -1) { 68007c478bd9Sstevel@tonic-gate /* 68017c478bd9Sstevel@tonic-gate * copy anything appended after "([0-9]+)" into 68027c478bd9Sstevel@tonic-gate * templink 68037c478bd9Sstevel@tonic-gate */ 68047c478bd9Sstevel@tonic-gate 68057c478bd9Sstevel@tonic-gate (void) strcpy(templink, 68060a653502Swroche &link[counter_offset + strlen("([0-9]+)")]); 68077c478bd9Sstevel@tonic-gate if (get_anchored_re(link, anchored_re, pattern) 68087c478bd9Sstevel@tonic-gate != DEVFSADM_SUCCESS) { 68097c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 68107c478bd9Sstevel@tonic-gate } 68117c478bd9Sstevel@tonic-gate rules[0].re = anchored_re; 68127c478bd9Sstevel@tonic-gate rules[0].subexp = 1; 68137c478bd9Sstevel@tonic-gate rules[0].flags = MATCH_ALL; 68147c478bd9Sstevel@tonic-gate if (devfsadm_enumerate_int_start(contents, 0, &buff, 68157c478bd9Sstevel@tonic-gate rules, 1, start) == DEVFSADM_FAILURE) { 68167c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 68177c478bd9Sstevel@tonic-gate } 68187c478bd9Sstevel@tonic-gate (void) strcpy(&link[counter_offset], buff); 68197c478bd9Sstevel@tonic-gate free(buff); 68207c478bd9Sstevel@tonic-gate (void) strcat(link, templink); 68217c478bd9Sstevel@tonic-gate vprint(DEVLINK_MID, "COUNTER is %s\n", link); 68227c478bd9Sstevel@tonic-gate } 68237c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 68247c478bd9Sstevel@tonic-gate } 68257c478bd9Sstevel@tonic-gate 68267c478bd9Sstevel@tonic-gate /* 68277c478bd9Sstevel@tonic-gate * Compares "field" number of the comma separated list "full_name" with 68287c478bd9Sstevel@tonic-gate * field_item. Returns DEVFSADM_SUCCESS for match, 68297c478bd9Sstevel@tonic-gate * DEVFSADM_FAILURE for no match. 68307c478bd9Sstevel@tonic-gate */ 68317c478bd9Sstevel@tonic-gate static int 68327c478bd9Sstevel@tonic-gate compare_field(char *full_name, char *field_item, int field) 68337c478bd9Sstevel@tonic-gate { 68347c478bd9Sstevel@tonic-gate --field; 68357c478bd9Sstevel@tonic-gate while ((*full_name != '\0') && (field != 0)) { 68367c478bd9Sstevel@tonic-gate if (*(full_name++) == ',') { 68377c478bd9Sstevel@tonic-gate field--; 68387c478bd9Sstevel@tonic-gate } 68397c478bd9Sstevel@tonic-gate } 68407c478bd9Sstevel@tonic-gate 68417c478bd9Sstevel@tonic-gate if (field != 0) { 68427c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 68437c478bd9Sstevel@tonic-gate } 68447c478bd9Sstevel@tonic-gate 68457c478bd9Sstevel@tonic-gate while ((*full_name != '\0') && (*field_item != '\0') && 68460a653502Swroche (*full_name != ',')) { 68477c478bd9Sstevel@tonic-gate if (*(full_name++) != *(field_item++)) { 68487c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 68497c478bd9Sstevel@tonic-gate } 68507c478bd9Sstevel@tonic-gate } 68517c478bd9Sstevel@tonic-gate 68527c478bd9Sstevel@tonic-gate if (*field_item != '\0') { 68537c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 68547c478bd9Sstevel@tonic-gate } 68557c478bd9Sstevel@tonic-gate 68567c478bd9Sstevel@tonic-gate if ((*full_name == '\0') || (*full_name == ',')) 68577c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 68587c478bd9Sstevel@tonic-gate 68597c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 68607c478bd9Sstevel@tonic-gate } 68617c478bd9Sstevel@tonic-gate 68627c478bd9Sstevel@tonic-gate /* 68637c478bd9Sstevel@tonic-gate * strcat() field # "field" of comma separated list "name" to "link". 68647c478bd9Sstevel@tonic-gate * Field 0 is the entire name. 68657c478bd9Sstevel@tonic-gate * Return DEVFSADM_SUCCESS or DEVFSADM_FAILURE. 68667c478bd9Sstevel@tonic-gate */ 68677c478bd9Sstevel@tonic-gate static int 68687c478bd9Sstevel@tonic-gate component_cat(char *link, char *name, int field) 68697c478bd9Sstevel@tonic-gate { 68707c478bd9Sstevel@tonic-gate 68717c478bd9Sstevel@tonic-gate if (name == NULL) { 68727c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 68737c478bd9Sstevel@tonic-gate } 68747c478bd9Sstevel@tonic-gate 68757c478bd9Sstevel@tonic-gate if (field == 0) { 68767c478bd9Sstevel@tonic-gate (void) strcat(link, name); 68777c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 68787c478bd9Sstevel@tonic-gate } 68797c478bd9Sstevel@tonic-gate 68807c478bd9Sstevel@tonic-gate while (*link != '\0') { 68817c478bd9Sstevel@tonic-gate link++; 68827c478bd9Sstevel@tonic-gate } 68837c478bd9Sstevel@tonic-gate 68847c478bd9Sstevel@tonic-gate --field; 68857c478bd9Sstevel@tonic-gate while ((*name != '\0') && (field != 0)) { 68867c478bd9Sstevel@tonic-gate if (*(name++) == ',') { 68877c478bd9Sstevel@tonic-gate --field; 68887c478bd9Sstevel@tonic-gate } 68897c478bd9Sstevel@tonic-gate } 68907c478bd9Sstevel@tonic-gate 68917c478bd9Sstevel@tonic-gate if (field != 0) { 68927c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 68937c478bd9Sstevel@tonic-gate } 68947c478bd9Sstevel@tonic-gate 68957c478bd9Sstevel@tonic-gate while ((*name != '\0') && (*name != ',')) { 68967c478bd9Sstevel@tonic-gate *(link++) = *(name++); 68977c478bd9Sstevel@tonic-gate } 68987c478bd9Sstevel@tonic-gate 68997c478bd9Sstevel@tonic-gate *link = '\0'; 69007c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 69017c478bd9Sstevel@tonic-gate } 69027c478bd9Sstevel@tonic-gate 69037c478bd9Sstevel@tonic-gate static void 69047c478bd9Sstevel@tonic-gate free_selector_list(selector_list_t *head) 69057c478bd9Sstevel@tonic-gate { 69067c478bd9Sstevel@tonic-gate selector_list_t *temp; 69077c478bd9Sstevel@tonic-gate 69087c478bd9Sstevel@tonic-gate while (head != NULL) { 69097c478bd9Sstevel@tonic-gate temp = head; 69107c478bd9Sstevel@tonic-gate head = head->next; 69117c478bd9Sstevel@tonic-gate free(temp->val); 69127c478bd9Sstevel@tonic-gate free(temp); 69137c478bd9Sstevel@tonic-gate } 69147c478bd9Sstevel@tonic-gate } 69157c478bd9Sstevel@tonic-gate 69167c478bd9Sstevel@tonic-gate static void 69177c478bd9Sstevel@tonic-gate free_link_list(link_list_t *head) 69187c478bd9Sstevel@tonic-gate { 69197c478bd9Sstevel@tonic-gate link_list_t *temp; 69207c478bd9Sstevel@tonic-gate 69217c478bd9Sstevel@tonic-gate while (head != NULL) { 69227c478bd9Sstevel@tonic-gate temp = head; 69237c478bd9Sstevel@tonic-gate head = head->next; 69247c478bd9Sstevel@tonic-gate if (temp->type == CONSTANT) { 69257c478bd9Sstevel@tonic-gate free(temp->constant); 69267c478bd9Sstevel@tonic-gate } 69277c478bd9Sstevel@tonic-gate free(temp); 69287c478bd9Sstevel@tonic-gate } 69297c478bd9Sstevel@tonic-gate } 69307c478bd9Sstevel@tonic-gate 69317c478bd9Sstevel@tonic-gate /* 69327c478bd9Sstevel@tonic-gate * Prints only if level matches one of the debug levels 69337c478bd9Sstevel@tonic-gate * given on command line. INFO_MID is always printed. 69347c478bd9Sstevel@tonic-gate * 69357c478bd9Sstevel@tonic-gate * See devfsadm.h for a listing of globally defined levels and 69367c478bd9Sstevel@tonic-gate * meanings. Modules should prefix the level with their 69377c478bd9Sstevel@tonic-gate * module name to prevent collisions. 69387c478bd9Sstevel@tonic-gate */ 69397c478bd9Sstevel@tonic-gate /*PRINTFLIKE2*/ 69407c478bd9Sstevel@tonic-gate void 69417c478bd9Sstevel@tonic-gate devfsadm_print(char *msgid, char *message, ...) 69427c478bd9Sstevel@tonic-gate { 69437c478bd9Sstevel@tonic-gate va_list ap; 69447c478bd9Sstevel@tonic-gate static int newline = TRUE; 69457c478bd9Sstevel@tonic-gate int x; 69467c478bd9Sstevel@tonic-gate 69477c478bd9Sstevel@tonic-gate if (msgid != NULL) { 69487c478bd9Sstevel@tonic-gate for (x = 0; x < num_verbose; x++) { 69497c478bd9Sstevel@tonic-gate if (strcmp(verbose[x], msgid) == 0) { 69507c478bd9Sstevel@tonic-gate break; 69517c478bd9Sstevel@tonic-gate } 69527c478bd9Sstevel@tonic-gate if (strcmp(verbose[x], ALL_MID) == 0) { 69537c478bd9Sstevel@tonic-gate break; 69547c478bd9Sstevel@tonic-gate } 69557c478bd9Sstevel@tonic-gate } 69567c478bd9Sstevel@tonic-gate if (x == num_verbose) { 69577c478bd9Sstevel@tonic-gate return; 69587c478bd9Sstevel@tonic-gate } 69597c478bd9Sstevel@tonic-gate } 69607c478bd9Sstevel@tonic-gate 69617c478bd9Sstevel@tonic-gate va_start(ap, message); 69627c478bd9Sstevel@tonic-gate 69637c478bd9Sstevel@tonic-gate if (msgid == NULL) { 69647c478bd9Sstevel@tonic-gate if (logflag == TRUE) { 69657c478bd9Sstevel@tonic-gate (void) vsyslog(LOG_NOTICE, message, ap); 69667c478bd9Sstevel@tonic-gate } else { 69677c478bd9Sstevel@tonic-gate (void) vfprintf(stdout, message, ap); 69687c478bd9Sstevel@tonic-gate } 69697c478bd9Sstevel@tonic-gate 69707c478bd9Sstevel@tonic-gate } else { 69717c478bd9Sstevel@tonic-gate if (logflag == TRUE) { 69727c478bd9Sstevel@tonic-gate (void) syslog(LOG_DEBUG, "%s[%ld]: %s: ", 69730a653502Swroche prog, getpid(), msgid); 69747c478bd9Sstevel@tonic-gate (void) vsyslog(LOG_DEBUG, message, ap); 69757c478bd9Sstevel@tonic-gate } else { 69767c478bd9Sstevel@tonic-gate if (newline == TRUE) { 69777c478bd9Sstevel@tonic-gate (void) fprintf(stdout, "%s[%ld]: %s: ", 69780a653502Swroche prog, getpid(), msgid); 69797c478bd9Sstevel@tonic-gate } 69807c478bd9Sstevel@tonic-gate (void) vfprintf(stdout, message, ap); 69817c478bd9Sstevel@tonic-gate } 69827c478bd9Sstevel@tonic-gate } 69837c478bd9Sstevel@tonic-gate 69847c478bd9Sstevel@tonic-gate if (message[strlen(message) - 1] == '\n') { 69857c478bd9Sstevel@tonic-gate newline = TRUE; 69867c478bd9Sstevel@tonic-gate } else { 69877c478bd9Sstevel@tonic-gate newline = FALSE; 69887c478bd9Sstevel@tonic-gate } 69897c478bd9Sstevel@tonic-gate va_end(ap); 69907c478bd9Sstevel@tonic-gate } 69917c478bd9Sstevel@tonic-gate 69927c478bd9Sstevel@tonic-gate /* 69937c478bd9Sstevel@tonic-gate * print error messages to the terminal or to syslog 69947c478bd9Sstevel@tonic-gate */ 69957c478bd9Sstevel@tonic-gate /*PRINTFLIKE1*/ 69967c478bd9Sstevel@tonic-gate void 69977c478bd9Sstevel@tonic-gate devfsadm_errprint(char *message, ...) 69987c478bd9Sstevel@tonic-gate { 69997c478bd9Sstevel@tonic-gate va_list ap; 70007c478bd9Sstevel@tonic-gate 70017c478bd9Sstevel@tonic-gate va_start(ap, message); 70027c478bd9Sstevel@tonic-gate 70037c478bd9Sstevel@tonic-gate if (logflag == TRUE) { 70047c478bd9Sstevel@tonic-gate (void) vsyslog(LOG_ERR, message, ap); 70057c478bd9Sstevel@tonic-gate } else { 70067c478bd9Sstevel@tonic-gate (void) fprintf(stderr, "%s: ", prog); 70077c478bd9Sstevel@tonic-gate (void) vfprintf(stderr, message, ap); 70087c478bd9Sstevel@tonic-gate } 70097c478bd9Sstevel@tonic-gate va_end(ap); 70107c478bd9Sstevel@tonic-gate } 70117c478bd9Sstevel@tonic-gate 70127c478bd9Sstevel@tonic-gate /* 70137c478bd9Sstevel@tonic-gate * return noupdate state (-s) 70147c478bd9Sstevel@tonic-gate */ 70157c478bd9Sstevel@tonic-gate int 70167c478bd9Sstevel@tonic-gate devfsadm_noupdate(void) 70177c478bd9Sstevel@tonic-gate { 70187c478bd9Sstevel@tonic-gate return (file_mods == TRUE ? DEVFSADM_TRUE : DEVFSADM_FALSE); 70197c478bd9Sstevel@tonic-gate } 70207c478bd9Sstevel@tonic-gate 70217c478bd9Sstevel@tonic-gate /* 70227c478bd9Sstevel@tonic-gate * return current root update path (-r) 70237c478bd9Sstevel@tonic-gate */ 70247c478bd9Sstevel@tonic-gate const char * 70257c478bd9Sstevel@tonic-gate devfsadm_root_path(void) 70267c478bd9Sstevel@tonic-gate { 70277c478bd9Sstevel@tonic-gate if (root_dir[0] == '\0') { 70287c478bd9Sstevel@tonic-gate return ("/"); 70297c478bd9Sstevel@tonic-gate } else { 70307c478bd9Sstevel@tonic-gate return ((const char *)root_dir); 70317c478bd9Sstevel@tonic-gate } 70327c478bd9Sstevel@tonic-gate } 70337c478bd9Sstevel@tonic-gate 70343c4226f9Spjha void 70353c4226f9Spjha devfsadm_free_dev_names(char **dev_names, int len) 70363c4226f9Spjha { 70373c4226f9Spjha int i; 70383c4226f9Spjha 70393c4226f9Spjha for (i = 0; i < len; i++) 70403c4226f9Spjha free(dev_names[i]); 70413c4226f9Spjha free(dev_names); 70423c4226f9Spjha } 70433c4226f9Spjha 70443c4226f9Spjha /* 70453c4226f9Spjha * Return all devlinks corresponding to phys_path as an array of strings. 70463c4226f9Spjha * The number of entries in the array is returned through lenp. 70473c4226f9Spjha * devfsadm_free_dev_names() is used to free the returned array. 70483c4226f9Spjha * NULL is returned on failure or when there are no matching devlinks. 70493c4226f9Spjha * 70503c4226f9Spjha * re is an extended regular expression in regex(5) format used to further 70513c4226f9Spjha * match devlinks pointing to phys_path; it may be NULL to match all 70523c4226f9Spjha */ 70533c4226f9Spjha char ** 70543c4226f9Spjha devfsadm_lookup_dev_names(char *phys_path, char *re, int *lenp) 70553c4226f9Spjha { 70563c4226f9Spjha struct devlink_cb_arg cb_arg; 70573c4226f9Spjha char **dev_names = NULL; 70583c4226f9Spjha int i; 70593c4226f9Spjha 70603c4226f9Spjha *lenp = 0; 70613c4226f9Spjha cb_arg.count = 0; 70623c4226f9Spjha cb_arg.rv = 0; 70633c4226f9Spjha (void) di_devlink_cache_walk(devlink_cache, re, phys_path, 70643c4226f9Spjha DI_PRIMARY_LINK, &cb_arg, devlink_cb); 70653c4226f9Spjha 70663c4226f9Spjha if (cb_arg.rv == -1 || cb_arg.count <= 0) 70673c4226f9Spjha return (NULL); 70683c4226f9Spjha 70693c4226f9Spjha dev_names = s_malloc(cb_arg.count * sizeof (char *)); 70703c4226f9Spjha if (dev_names == NULL) 70713c4226f9Spjha goto out; 70723c4226f9Spjha 70733c4226f9Spjha for (i = 0; i < cb_arg.count; i++) { 70743c4226f9Spjha dev_names[i] = s_strdup(cb_arg.dev_names[i]); 70753c4226f9Spjha if (dev_names[i] == NULL) { 70763c4226f9Spjha devfsadm_free_dev_names(dev_names, i); 70773c4226f9Spjha dev_names = NULL; 70783c4226f9Spjha goto out; 70793c4226f9Spjha } 70803c4226f9Spjha } 70813c4226f9Spjha *lenp = cb_arg.count; 70823c4226f9Spjha 70833c4226f9Spjha out: 70843c4226f9Spjha free_dev_names(&cb_arg); 70853c4226f9Spjha return (dev_names); 70863c4226f9Spjha } 70873c4226f9Spjha 70887c478bd9Sstevel@tonic-gate /* common exit function which ensures releasing locks */ 70897c478bd9Sstevel@tonic-gate static void 70907c478bd9Sstevel@tonic-gate devfsadm_exit(int status) 70917c478bd9Sstevel@tonic-gate { 70927c478bd9Sstevel@tonic-gate if (DEVFSADM_DEBUG_ON) { 70937c478bd9Sstevel@tonic-gate vprint(INFO_MID, "exit status = %d\n", status); 70947c478bd9Sstevel@tonic-gate } 70957c478bd9Sstevel@tonic-gate 7096537714daSvikram exit_dev_lock(1); 7097537714daSvikram exit_daemon_lock(1); 70987c478bd9Sstevel@tonic-gate 70997c478bd9Sstevel@tonic-gate if (logflag == TRUE) { 71007c478bd9Sstevel@tonic-gate closelog(); 71017c478bd9Sstevel@tonic-gate } 71027c478bd9Sstevel@tonic-gate 71037c478bd9Sstevel@tonic-gate exit(status); 7104537714daSvikram /*NOTREACHED*/ 71057c478bd9Sstevel@tonic-gate } 71067c478bd9Sstevel@tonic-gate 71077c478bd9Sstevel@tonic-gate /* 7108facf4a8dSllai * set root_dir, devices_dir, dev_dir using optarg. 71097c478bd9Sstevel@tonic-gate */ 71107c478bd9Sstevel@tonic-gate static void 7111facf4a8dSllai set_root_devices_dev_dir(char *dir) 71127c478bd9Sstevel@tonic-gate { 71137c478bd9Sstevel@tonic-gate size_t len; 71147c478bd9Sstevel@tonic-gate 71157c478bd9Sstevel@tonic-gate root_dir = s_strdup(dir); 71167c478bd9Sstevel@tonic-gate len = strlen(dir) + strlen(DEVICES) + 1; 71177c478bd9Sstevel@tonic-gate devices_dir = s_malloc(len); 71187c478bd9Sstevel@tonic-gate (void) snprintf(devices_dir, len, "%s%s", root_dir, DEVICES); 71197c478bd9Sstevel@tonic-gate len = strlen(root_dir) + strlen(DEV) + 1; 71207c478bd9Sstevel@tonic-gate dev_dir = s_malloc(len); 71217c478bd9Sstevel@tonic-gate (void) snprintf(dev_dir, len, "%s%s", root_dir, DEV); 71227c478bd9Sstevel@tonic-gate } 71237c478bd9Sstevel@tonic-gate 71247c478bd9Sstevel@tonic-gate /* 71257c478bd9Sstevel@tonic-gate * Removes quotes. 71267c478bd9Sstevel@tonic-gate */ 71277c478bd9Sstevel@tonic-gate static char * 71287c478bd9Sstevel@tonic-gate dequote(char *src) 71297c478bd9Sstevel@tonic-gate { 71307c478bd9Sstevel@tonic-gate char *dst; 71317c478bd9Sstevel@tonic-gate int len; 71327c478bd9Sstevel@tonic-gate 71337c478bd9Sstevel@tonic-gate len = strlen(src); 71347c478bd9Sstevel@tonic-gate dst = s_malloc(len + 1); 71357c478bd9Sstevel@tonic-gate if (src[0] == '\"' && src[len - 1] == '\"') { 71367c478bd9Sstevel@tonic-gate len -= 2; 71377c478bd9Sstevel@tonic-gate (void) strncpy(dst, &src[1], len); 71387c478bd9Sstevel@tonic-gate dst[len] = '\0'; 71397c478bd9Sstevel@tonic-gate } else { 71407c478bd9Sstevel@tonic-gate (void) strcpy(dst, src); 71417c478bd9Sstevel@tonic-gate } 71427c478bd9Sstevel@tonic-gate return (dst); 71437c478bd9Sstevel@tonic-gate } 71447c478bd9Sstevel@tonic-gate 71457c478bd9Sstevel@tonic-gate /* 71467c478bd9Sstevel@tonic-gate * For a given physical device pathname and spectype, return the 71477c478bd9Sstevel@tonic-gate * ownership and permissions attributes by looking in data from 71487c478bd9Sstevel@tonic-gate * /etc/minor_perm. If currently in installation mode, check for 71497c478bd9Sstevel@tonic-gate * possible major number translations from the miniroot to the installed 71507c478bd9Sstevel@tonic-gate * root's name_to_major table. Note that there can be multiple matches, 71517c478bd9Sstevel@tonic-gate * but the last match takes effect. pts seems to rely on this 71527c478bd9Sstevel@tonic-gate * implementation behavior. 71537c478bd9Sstevel@tonic-gate */ 71547c478bd9Sstevel@tonic-gate static void 71557c478bd9Sstevel@tonic-gate getattr(char *phy_path, char *aminor, int spectype, dev_t dev, mode_t *mode, 71567c478bd9Sstevel@tonic-gate uid_t *uid, gid_t *gid) 71577c478bd9Sstevel@tonic-gate { 71587c478bd9Sstevel@tonic-gate char devname[PATH_MAX + 1]; 71597c478bd9Sstevel@tonic-gate char *node_name; 71607c478bd9Sstevel@tonic-gate char *minor_name; 71617c478bd9Sstevel@tonic-gate int match = FALSE; 71627c478bd9Sstevel@tonic-gate int is_clone; 71637c478bd9Sstevel@tonic-gate int mp_drvname_matches_node_name; 71647c478bd9Sstevel@tonic-gate int mp_drvname_matches_minor_name; 71657c478bd9Sstevel@tonic-gate int mp_drvname_is_clone; 71667c478bd9Sstevel@tonic-gate int mp_drvname_matches_drvname; 71677c478bd9Sstevel@tonic-gate struct mperm *mp; 71687c478bd9Sstevel@tonic-gate major_t major_no; 71697c478bd9Sstevel@tonic-gate char driver[PATH_MAX + 1]; 71707c478bd9Sstevel@tonic-gate 71717c478bd9Sstevel@tonic-gate /* 71727c478bd9Sstevel@tonic-gate * Get the driver name based on the major number since the name 71737c478bd9Sstevel@tonic-gate * in /devices may be generic. Could be running with more major 71747c478bd9Sstevel@tonic-gate * numbers than are in /etc/name_to_major, so get it from the kernel 71757c478bd9Sstevel@tonic-gate */ 71767c478bd9Sstevel@tonic-gate major_no = major(dev); 71777c478bd9Sstevel@tonic-gate 71787c478bd9Sstevel@tonic-gate if (modctl(MODGETNAME, driver, sizeof (driver), &major_no) != 0) { 71797c478bd9Sstevel@tonic-gate /* return default values */ 71807c478bd9Sstevel@tonic-gate goto use_defaults; 71817c478bd9Sstevel@tonic-gate } 71827c478bd9Sstevel@tonic-gate 71837c478bd9Sstevel@tonic-gate (void) strcpy(devname, phy_path); 71847c478bd9Sstevel@tonic-gate 71857c478bd9Sstevel@tonic-gate node_name = strrchr(devname, '/'); /* node name is the last */ 71867c478bd9Sstevel@tonic-gate /* component */ 71877c478bd9Sstevel@tonic-gate if (node_name == NULL) { 71887c478bd9Sstevel@tonic-gate err_print(NO_NODE, devname); 71897c478bd9Sstevel@tonic-gate goto use_defaults; 71907c478bd9Sstevel@tonic-gate } 71917c478bd9Sstevel@tonic-gate 71927c478bd9Sstevel@tonic-gate minor_name = strchr(++node_name, '@'); /* see if it has address part */ 71937c478bd9Sstevel@tonic-gate 71947c478bd9Sstevel@tonic-gate if (minor_name != NULL) { 71957c478bd9Sstevel@tonic-gate *minor_name++ = '\0'; 71967c478bd9Sstevel@tonic-gate } else { 71977c478bd9Sstevel@tonic-gate minor_name = node_name; 71987c478bd9Sstevel@tonic-gate } 71997c478bd9Sstevel@tonic-gate 72007c478bd9Sstevel@tonic-gate minor_name = strchr(minor_name, ':'); /* look for minor name */ 72017c478bd9Sstevel@tonic-gate 72027c478bd9Sstevel@tonic-gate if (minor_name == NULL) { 72037c478bd9Sstevel@tonic-gate err_print(NO_MINOR, devname); 72047c478bd9Sstevel@tonic-gate goto use_defaults; 72057c478bd9Sstevel@tonic-gate } 72067c478bd9Sstevel@tonic-gate *minor_name++ = '\0'; 72077c478bd9Sstevel@tonic-gate 72087c478bd9Sstevel@tonic-gate /* 72097c478bd9Sstevel@tonic-gate * mp->mp_drvname = device name from minor_perm 72107c478bd9Sstevel@tonic-gate * mp->mp_minorname = minor part of device name from 72117c478bd9Sstevel@tonic-gate * minor_perm 72127c478bd9Sstevel@tonic-gate * drvname = name of driver for this device 72137c478bd9Sstevel@tonic-gate */ 72147c478bd9Sstevel@tonic-gate 72157c478bd9Sstevel@tonic-gate is_clone = (strcmp(node_name, "clone") == 0 ? TRUE : FALSE); 72167c478bd9Sstevel@tonic-gate for (mp = minor_perms; mp != NULL; mp = mp->mp_next) { 72177c478bd9Sstevel@tonic-gate mp_drvname_matches_node_name = 72180a653502Swroche (strcmp(mp->mp_drvname, node_name) == 0 ? TRUE : FALSE); 72197c478bd9Sstevel@tonic-gate mp_drvname_matches_minor_name = 72200a653502Swroche (strcmp(mp->mp_drvname, minor_name) == 0 ? TRUE:FALSE); 72217c478bd9Sstevel@tonic-gate mp_drvname_is_clone = 72220a653502Swroche (strcmp(mp->mp_drvname, "clone") == 0 ? TRUE : FALSE); 72237c478bd9Sstevel@tonic-gate mp_drvname_matches_drvname = 72240a653502Swroche (strcmp(mp->mp_drvname, driver) == 0 ? TRUE : FALSE); 72257c478bd9Sstevel@tonic-gate 72267c478bd9Sstevel@tonic-gate /* 72277c478bd9Sstevel@tonic-gate * If one of the following cases is true, then we try to change 72287c478bd9Sstevel@tonic-gate * the permissions if a "shell global pattern match" of 72297c478bd9Sstevel@tonic-gate * mp_>mp_minorname matches minor_name. 72307c478bd9Sstevel@tonic-gate * 72317c478bd9Sstevel@tonic-gate * 1. mp->mp_drvname matches driver. 72327c478bd9Sstevel@tonic-gate * 72337c478bd9Sstevel@tonic-gate * OR 72347c478bd9Sstevel@tonic-gate * 72357c478bd9Sstevel@tonic-gate * 2. mp->mp_drvname matches node_name and this 72367c478bd9Sstevel@tonic-gate * name is an alias of the driver name 72377c478bd9Sstevel@tonic-gate * 72387c478bd9Sstevel@tonic-gate * OR 72397c478bd9Sstevel@tonic-gate * 72407c478bd9Sstevel@tonic-gate * 3. /devices entry is the clone device and either 72417c478bd9Sstevel@tonic-gate * minor_perm entry is the clone device or matches 72427c478bd9Sstevel@tonic-gate * the minor part of the clone device. 72437c478bd9Sstevel@tonic-gate */ 72447c478bd9Sstevel@tonic-gate 72457c478bd9Sstevel@tonic-gate if ((mp_drvname_matches_drvname == TRUE)|| 72467c478bd9Sstevel@tonic-gate ((mp_drvname_matches_node_name == TRUE) && 72477c478bd9Sstevel@tonic-gate (alias(driver, node_name) == TRUE)) || 72487c478bd9Sstevel@tonic-gate ((is_clone == TRUE) && 72497c478bd9Sstevel@tonic-gate ((mp_drvname_is_clone == TRUE) || 72507c478bd9Sstevel@tonic-gate (mp_drvname_matches_minor_name == TRUE)))) { 72517c478bd9Sstevel@tonic-gate /* 72527c478bd9Sstevel@tonic-gate * Check that the minor part of the 72537c478bd9Sstevel@tonic-gate * device name from the minor_perm 72547c478bd9Sstevel@tonic-gate * entry matches and if so, set the 72557c478bd9Sstevel@tonic-gate * permissions. 72567c478bd9Sstevel@tonic-gate * 72577c478bd9Sstevel@tonic-gate * Under real devfs, clone minor name is changed 72587c478bd9Sstevel@tonic-gate * to match the driver name, but minor_perm may 72597c478bd9Sstevel@tonic-gate * not match. We reconcile it here. 72607c478bd9Sstevel@tonic-gate */ 72617c478bd9Sstevel@tonic-gate if (aminor != NULL) 72627c478bd9Sstevel@tonic-gate minor_name = aminor; 72637c478bd9Sstevel@tonic-gate 72647c478bd9Sstevel@tonic-gate if (gmatch(minor_name, mp->mp_minorname) != 0) { 72657c478bd9Sstevel@tonic-gate *uid = mp->mp_uid; 72667c478bd9Sstevel@tonic-gate *gid = mp->mp_gid; 72677c478bd9Sstevel@tonic-gate *mode = spectype | mp->mp_mode; 72687c478bd9Sstevel@tonic-gate match = TRUE; 72697c478bd9Sstevel@tonic-gate } 72707c478bd9Sstevel@tonic-gate } 72717c478bd9Sstevel@tonic-gate } 72727c478bd9Sstevel@tonic-gate 72737c478bd9Sstevel@tonic-gate if (match == TRUE) { 72747c478bd9Sstevel@tonic-gate return; 72757c478bd9Sstevel@tonic-gate } 72767c478bd9Sstevel@tonic-gate 72777c478bd9Sstevel@tonic-gate use_defaults: 72787c478bd9Sstevel@tonic-gate /* not found in minor_perm, so just use default values */ 72797c478bd9Sstevel@tonic-gate *uid = root_uid; 72807c478bd9Sstevel@tonic-gate *gid = sys_gid; 72817c478bd9Sstevel@tonic-gate *mode = (spectype | 0600); 72827c478bd9Sstevel@tonic-gate } 72837c478bd9Sstevel@tonic-gate 72847c478bd9Sstevel@tonic-gate /* 72857c478bd9Sstevel@tonic-gate * Called by devfs_read_minor_perm() to report errors 72867c478bd9Sstevel@tonic-gate * key is: 72877c478bd9Sstevel@tonic-gate * line number: ignoring line number error 72887c478bd9Sstevel@tonic-gate * errno: open/close errors 72897c478bd9Sstevel@tonic-gate * size: alloc errors 72907c478bd9Sstevel@tonic-gate */ 72917c478bd9Sstevel@tonic-gate static void 72927c478bd9Sstevel@tonic-gate minorperm_err_cb(minorperm_err_t mp_err, int key) 72937c478bd9Sstevel@tonic-gate { 72947c478bd9Sstevel@tonic-gate switch (mp_err) { 72957c478bd9Sstevel@tonic-gate case MP_FOPEN_ERR: 72967c478bd9Sstevel@tonic-gate err_print(FOPEN_FAILED, MINOR_PERM_FILE, strerror(key)); 72977c478bd9Sstevel@tonic-gate break; 72987c478bd9Sstevel@tonic-gate case MP_FCLOSE_ERR: 72997c478bd9Sstevel@tonic-gate err_print(FCLOSE_FAILED, MINOR_PERM_FILE, strerror(key)); 73007c478bd9Sstevel@tonic-gate break; 73017c478bd9Sstevel@tonic-gate case MP_IGNORING_LINE_ERR: 73027c478bd9Sstevel@tonic-gate err_print(IGNORING_LINE_IN, key, MINOR_PERM_FILE); 73037c478bd9Sstevel@tonic-gate break; 73047c478bd9Sstevel@tonic-gate case MP_ALLOC_ERR: 73057c478bd9Sstevel@tonic-gate err_print(MALLOC_FAILED, key); 73067c478bd9Sstevel@tonic-gate break; 73077c478bd9Sstevel@tonic-gate case MP_NVLIST_ERR: 73087c478bd9Sstevel@tonic-gate err_print(NVLIST_ERROR, MINOR_PERM_FILE, strerror(key)); 73097c478bd9Sstevel@tonic-gate break; 73107c478bd9Sstevel@tonic-gate case MP_CANT_FIND_USER_ERR: 73117c478bd9Sstevel@tonic-gate err_print(CANT_FIND_USER, DEFAULT_DEV_USER); 73127c478bd9Sstevel@tonic-gate break; 73137c478bd9Sstevel@tonic-gate case MP_CANT_FIND_GROUP_ERR: 73147c478bd9Sstevel@tonic-gate err_print(CANT_FIND_GROUP, DEFAULT_DEV_GROUP); 73157c478bd9Sstevel@tonic-gate break; 73167c478bd9Sstevel@tonic-gate } 73177c478bd9Sstevel@tonic-gate } 73187c478bd9Sstevel@tonic-gate 73197c478bd9Sstevel@tonic-gate static void 73207c478bd9Sstevel@tonic-gate read_minor_perm_file(void) 73217c478bd9Sstevel@tonic-gate { 73227c478bd9Sstevel@tonic-gate static int cached = FALSE; 73237c478bd9Sstevel@tonic-gate static struct stat cached_sb; 73247c478bd9Sstevel@tonic-gate struct stat current_sb; 73257c478bd9Sstevel@tonic-gate 73267c478bd9Sstevel@tonic-gate (void) stat(MINOR_PERM_FILE, ¤t_sb); 73277c478bd9Sstevel@tonic-gate 73287c478bd9Sstevel@tonic-gate /* If already cached, check to see if it is still valid */ 73297c478bd9Sstevel@tonic-gate if (cached == TRUE) { 73307c478bd9Sstevel@tonic-gate 73317c478bd9Sstevel@tonic-gate if (current_sb.st_mtime == cached_sb.st_mtime) { 73327c478bd9Sstevel@tonic-gate vprint(FILES_MID, "%s cache valid\n", MINOR_PERM_FILE); 73337c478bd9Sstevel@tonic-gate return; 73347c478bd9Sstevel@tonic-gate } 73357c478bd9Sstevel@tonic-gate devfs_free_minor_perm(minor_perms); 73367c478bd9Sstevel@tonic-gate minor_perms = NULL; 73377c478bd9Sstevel@tonic-gate } else { 73387c478bd9Sstevel@tonic-gate cached = TRUE; 73397c478bd9Sstevel@tonic-gate } 73407c478bd9Sstevel@tonic-gate 73417c478bd9Sstevel@tonic-gate (void) stat(MINOR_PERM_FILE, &cached_sb); 73427c478bd9Sstevel@tonic-gate 73437c478bd9Sstevel@tonic-gate vprint(FILES_MID, "loading binding file: %s\n", MINOR_PERM_FILE); 73447c478bd9Sstevel@tonic-gate 73457c478bd9Sstevel@tonic-gate minor_perms = devfs_read_minor_perm(minorperm_err_cb); 73467c478bd9Sstevel@tonic-gate } 73477c478bd9Sstevel@tonic-gate 73487c478bd9Sstevel@tonic-gate static void 73497c478bd9Sstevel@tonic-gate load_minor_perm_file(void) 73507c478bd9Sstevel@tonic-gate { 73517c478bd9Sstevel@tonic-gate read_minor_perm_file(); 73527c478bd9Sstevel@tonic-gate if (devfs_load_minor_perm(minor_perms, minorperm_err_cb) != 0) 73537c478bd9Sstevel@tonic-gate err_print(gettext("minor_perm load failed\n")); 73547c478bd9Sstevel@tonic-gate } 73557c478bd9Sstevel@tonic-gate 73567c478bd9Sstevel@tonic-gate static char * 73577c478bd9Sstevel@tonic-gate convert_to_re(char *dev) 73587c478bd9Sstevel@tonic-gate { 73597c478bd9Sstevel@tonic-gate char *p, *l, *out; 73607c478bd9Sstevel@tonic-gate int i; 73617c478bd9Sstevel@tonic-gate 73627c478bd9Sstevel@tonic-gate out = s_malloc(PATH_MAX); 73637c478bd9Sstevel@tonic-gate 73647c478bd9Sstevel@tonic-gate for (l = p = dev, i = 0; (*p != '\0') && (i < (PATH_MAX - 1)); 73657c478bd9Sstevel@tonic-gate ++p, i++) { 73667c478bd9Sstevel@tonic-gate if ((*p == '*') && ((l != p) && (*l == '/'))) { 73677c478bd9Sstevel@tonic-gate out[i++] = '.'; 73687c478bd9Sstevel@tonic-gate out[i] = '+'; 73697c478bd9Sstevel@tonic-gate } else { 73707c478bd9Sstevel@tonic-gate out[i] = *p; 73717c478bd9Sstevel@tonic-gate } 73727c478bd9Sstevel@tonic-gate l = p; 73737c478bd9Sstevel@tonic-gate } 73747c478bd9Sstevel@tonic-gate out[i] = '\0'; 73757c478bd9Sstevel@tonic-gate p = (char *)s_malloc(strlen(out) + 1); 73767c478bd9Sstevel@tonic-gate (void) strlcpy(p, out, strlen(out) + 1); 73777c478bd9Sstevel@tonic-gate free(out); 73787c478bd9Sstevel@tonic-gate 73797c478bd9Sstevel@tonic-gate vprint(FILES_MID, "converted %s -> %s\n", dev, p); 73807c478bd9Sstevel@tonic-gate 73817c478bd9Sstevel@tonic-gate return (p); 73827c478bd9Sstevel@tonic-gate } 73837c478bd9Sstevel@tonic-gate 73847c478bd9Sstevel@tonic-gate static void 73857c478bd9Sstevel@tonic-gate read_logindevperm_file(void) 73867c478bd9Sstevel@tonic-gate { 73877c478bd9Sstevel@tonic-gate static int cached = FALSE; 73887c478bd9Sstevel@tonic-gate static struct stat cached_sb; 73897c478bd9Sstevel@tonic-gate struct stat current_sb; 73907c478bd9Sstevel@tonic-gate struct login_dev *ldev; 73917c478bd9Sstevel@tonic-gate FILE *fp; 73927c478bd9Sstevel@tonic-gate char line[MAX_LDEV_LINE]; 73937c478bd9Sstevel@tonic-gate int ln, perm, rv; 73946e670f77Saj char *cp, *console, *dlist, *dev; 73957c478bd9Sstevel@tonic-gate char *lasts, *devlasts, *permstr, *drv; 73967c478bd9Sstevel@tonic-gate struct driver_list *list, *next; 73977c478bd9Sstevel@tonic-gate 73987c478bd9Sstevel@tonic-gate /* Read logindevperm only when enabled */ 73997c478bd9Sstevel@tonic-gate if (login_dev_enable != TRUE) 74007c478bd9Sstevel@tonic-gate return; 74017c478bd9Sstevel@tonic-gate 74027c478bd9Sstevel@tonic-gate if (cached == TRUE) { 74037c478bd9Sstevel@tonic-gate if (stat(LDEV_FILE, ¤t_sb) == 0 && 74047c478bd9Sstevel@tonic-gate current_sb.st_mtime == cached_sb.st_mtime) { 74057c478bd9Sstevel@tonic-gate vprint(FILES_MID, "%s cache valid\n", LDEV_FILE); 74067c478bd9Sstevel@tonic-gate return; 74077c478bd9Sstevel@tonic-gate } 74087c478bd9Sstevel@tonic-gate vprint(FILES_MID, "invalidating %s cache\n", LDEV_FILE); 74097c478bd9Sstevel@tonic-gate while (login_dev_cache != NULL) { 74107c478bd9Sstevel@tonic-gate 74117c478bd9Sstevel@tonic-gate ldev = login_dev_cache; 74127c478bd9Sstevel@tonic-gate login_dev_cache = ldev->ldev_next; 74137c478bd9Sstevel@tonic-gate free(ldev->ldev_console); 74147c478bd9Sstevel@tonic-gate free(ldev->ldev_device); 74157c478bd9Sstevel@tonic-gate regfree(&ldev->ldev_device_regex); 74167c478bd9Sstevel@tonic-gate list = ldev->ldev_driver_list; 74177c478bd9Sstevel@tonic-gate while (list) { 74187c478bd9Sstevel@tonic-gate next = list->next; 74197c478bd9Sstevel@tonic-gate free(list); 74207c478bd9Sstevel@tonic-gate list = next; 74217c478bd9Sstevel@tonic-gate } 74227c478bd9Sstevel@tonic-gate free(ldev); 74237c478bd9Sstevel@tonic-gate } 74247c478bd9Sstevel@tonic-gate } else { 74257c478bd9Sstevel@tonic-gate cached = TRUE; 74267c478bd9Sstevel@tonic-gate } 74277c478bd9Sstevel@tonic-gate 74287c478bd9Sstevel@tonic-gate assert(login_dev_cache == NULL); 74297c478bd9Sstevel@tonic-gate 74307c478bd9Sstevel@tonic-gate if (stat(LDEV_FILE, &cached_sb) != 0) { 74317c478bd9Sstevel@tonic-gate cached = FALSE; 74327c478bd9Sstevel@tonic-gate return; 74337c478bd9Sstevel@tonic-gate } 74347c478bd9Sstevel@tonic-gate 74357c478bd9Sstevel@tonic-gate vprint(FILES_MID, "loading file: %s\n", LDEV_FILE); 74367c478bd9Sstevel@tonic-gate 74377c478bd9Sstevel@tonic-gate if ((fp = fopen(LDEV_FILE, "r")) == NULL) { 74387c478bd9Sstevel@tonic-gate /* Not fatal to devfsadm */ 74397c478bd9Sstevel@tonic-gate cached = FALSE; 74407c478bd9Sstevel@tonic-gate err_print(FOPEN_FAILED, LDEV_FILE, strerror(errno)); 74417c478bd9Sstevel@tonic-gate return; 74427c478bd9Sstevel@tonic-gate } 74437c478bd9Sstevel@tonic-gate 74447c478bd9Sstevel@tonic-gate ln = 0; 74457c478bd9Sstevel@tonic-gate while (fgets(line, MAX_LDEV_LINE, fp) != NULL) { 74467c478bd9Sstevel@tonic-gate ln++; 74477c478bd9Sstevel@tonic-gate 74487c478bd9Sstevel@tonic-gate /* Remove comments */ 74497c478bd9Sstevel@tonic-gate if ((cp = strchr(line, '#')) != NULL) 74507c478bd9Sstevel@tonic-gate *cp = '\0'; 74517c478bd9Sstevel@tonic-gate 74527c478bd9Sstevel@tonic-gate if ((console = strtok_r(line, LDEV_DELIMS, &lasts)) == NULL) 74537c478bd9Sstevel@tonic-gate continue; /* Blank line */ 74547c478bd9Sstevel@tonic-gate 74557c478bd9Sstevel@tonic-gate if ((permstr = strtok_r(NULL, LDEV_DELIMS, &lasts)) == NULL) { 74567c478bd9Sstevel@tonic-gate err_print(IGNORING_LINE_IN, ln, LDEV_FILE); 74577c478bd9Sstevel@tonic-gate continue; /* Malformed line */ 74587c478bd9Sstevel@tonic-gate } 74597c478bd9Sstevel@tonic-gate 74607c478bd9Sstevel@tonic-gate /* 74617c478bd9Sstevel@tonic-gate * permstr is string in octal format. Convert to int 74627c478bd9Sstevel@tonic-gate */ 74637c478bd9Sstevel@tonic-gate cp = NULL; 74647c478bd9Sstevel@tonic-gate errno = 0; 74657c478bd9Sstevel@tonic-gate perm = strtol(permstr, &cp, 8); 74667c478bd9Sstevel@tonic-gate if (errno || perm < 0 || perm > 0777 || *cp != '\0') { 74677c478bd9Sstevel@tonic-gate err_print(IGNORING_LINE_IN, ln, LDEV_FILE); 74687c478bd9Sstevel@tonic-gate continue; 74697c478bd9Sstevel@tonic-gate } 74707c478bd9Sstevel@tonic-gate 74716e670f77Saj if ((dlist = strtok_r(NULL, LDEV_DELIMS, &lasts)) == NULL) { 74727c478bd9Sstevel@tonic-gate err_print(IGNORING_LINE_IN, ln, LDEV_FILE); 74737c478bd9Sstevel@tonic-gate continue; 74747c478bd9Sstevel@tonic-gate } 74757c478bd9Sstevel@tonic-gate 74766e670f77Saj dev = strtok_r(dlist, LDEV_DEV_DELIM, &devlasts); 74777c478bd9Sstevel@tonic-gate while (dev) { 74787c478bd9Sstevel@tonic-gate 74797c478bd9Sstevel@tonic-gate ldev = (struct login_dev *)s_zalloc( 74807c478bd9Sstevel@tonic-gate sizeof (struct login_dev)); 74817c478bd9Sstevel@tonic-gate ldev->ldev_console = s_strdup(console); 74827c478bd9Sstevel@tonic-gate ldev->ldev_perms = perm; 74837c478bd9Sstevel@tonic-gate 74847c478bd9Sstevel@tonic-gate /* 74857c478bd9Sstevel@tonic-gate * the logical device name may contain '*' which 74867c478bd9Sstevel@tonic-gate * we convert to a regular expression 74877c478bd9Sstevel@tonic-gate */ 74887c478bd9Sstevel@tonic-gate ldev->ldev_device = convert_to_re(dev); 74897c478bd9Sstevel@tonic-gate if (ldev->ldev_device && 74907c478bd9Sstevel@tonic-gate (rv = regcomp(&ldev->ldev_device_regex, 74917c478bd9Sstevel@tonic-gate ldev->ldev_device, REG_EXTENDED))) { 74927c478bd9Sstevel@tonic-gate bzero(&ldev->ldev_device_regex, 74937c478bd9Sstevel@tonic-gate sizeof (ldev->ldev_device_regex)); 74947c478bd9Sstevel@tonic-gate err_print(REGCOMP_FAILED, 74957c478bd9Sstevel@tonic-gate ldev->ldev_device, rv); 74967c478bd9Sstevel@tonic-gate } 74977c478bd9Sstevel@tonic-gate ldev->ldev_next = login_dev_cache; 74987c478bd9Sstevel@tonic-gate login_dev_cache = ldev; 74997c478bd9Sstevel@tonic-gate dev = strtok_r(NULL, LDEV_DEV_DELIM, &devlasts); 75007c478bd9Sstevel@tonic-gate } 75017c478bd9Sstevel@tonic-gate 75027c478bd9Sstevel@tonic-gate drv = strtok_r(NULL, LDEV_DRVLIST_DELIMS, &lasts); 75037c478bd9Sstevel@tonic-gate if (drv) { 75047c478bd9Sstevel@tonic-gate if (strcmp(drv, LDEV_DRVLIST_NAME) == 0) { 75057c478bd9Sstevel@tonic-gate 75060a653502Swroche drv = strtok_r(NULL, LDEV_DRV_DELIMS, &lasts); 75077c478bd9Sstevel@tonic-gate 75087c478bd9Sstevel@tonic-gate while (drv) { 75097c478bd9Sstevel@tonic-gate vprint(FILES_MID, 75100a653502Swroche "logindevperm driver=%s\n", drv); 75117c478bd9Sstevel@tonic-gate 75127c478bd9Sstevel@tonic-gate /* 75137c478bd9Sstevel@tonic-gate * create a linked list of driver 75147c478bd9Sstevel@tonic-gate * names 75157c478bd9Sstevel@tonic-gate */ 75167c478bd9Sstevel@tonic-gate list = (struct driver_list *) 75177c478bd9Sstevel@tonic-gate s_zalloc( 75187c478bd9Sstevel@tonic-gate sizeof (struct driver_list)); 75197c478bd9Sstevel@tonic-gate (void) strlcpy(list->driver_name, drv, 75207c478bd9Sstevel@tonic-gate sizeof (list->driver_name)); 75217c478bd9Sstevel@tonic-gate list->next = ldev->ldev_driver_list; 75227c478bd9Sstevel@tonic-gate ldev->ldev_driver_list = list; 75237c478bd9Sstevel@tonic-gate drv = strtok_r(NULL, LDEV_DRV_DELIMS, 75247c478bd9Sstevel@tonic-gate &lasts); 75257c478bd9Sstevel@tonic-gate } 75267c478bd9Sstevel@tonic-gate } 75277c478bd9Sstevel@tonic-gate } 75287c478bd9Sstevel@tonic-gate } 75297c478bd9Sstevel@tonic-gate (void) fclose(fp); 75307c478bd9Sstevel@tonic-gate } 75317c478bd9Sstevel@tonic-gate 75327c478bd9Sstevel@tonic-gate /* 75337c478bd9Sstevel@tonic-gate * Tokens are separated by ' ', '\t', ':', '=', '&', '|', ';', '\n', or '\0' 75347c478bd9Sstevel@tonic-gate * 75357c478bd9Sstevel@tonic-gate * Returns DEVFSADM_SUCCESS if token found, DEVFSADM_FAILURE otherwise. 75367c478bd9Sstevel@tonic-gate */ 75377c478bd9Sstevel@tonic-gate static int 75387c478bd9Sstevel@tonic-gate getnexttoken(char *next, char **nextp, char **tokenpp, char *tchar) 75397c478bd9Sstevel@tonic-gate { 75407c478bd9Sstevel@tonic-gate char *cp; 75417c478bd9Sstevel@tonic-gate char *cp1; 75427c478bd9Sstevel@tonic-gate char *tokenp; 75437c478bd9Sstevel@tonic-gate 75447c478bd9Sstevel@tonic-gate cp = next; 75457c478bd9Sstevel@tonic-gate while (*cp == ' ' || *cp == '\t') { 75467c478bd9Sstevel@tonic-gate cp++; /* skip leading spaces */ 75477c478bd9Sstevel@tonic-gate } 75487c478bd9Sstevel@tonic-gate tokenp = cp; /* start of token */ 75497c478bd9Sstevel@tonic-gate while (*cp != '\0' && *cp != '\n' && *cp != ' ' && *cp != '\t' && 75500a653502Swroche *cp != ':' && *cp != '=' && *cp != '&' && 75510a653502Swroche *cp != '|' && *cp != ';') { 75527c478bd9Sstevel@tonic-gate cp++; /* point to next character */ 75537c478bd9Sstevel@tonic-gate } 75547c478bd9Sstevel@tonic-gate /* 75557c478bd9Sstevel@tonic-gate * If terminating character is a space or tab, look ahead to see if 75567c478bd9Sstevel@tonic-gate * there's another terminator that's not a space or a tab. 75577c478bd9Sstevel@tonic-gate * (This code handles trailing spaces.) 75587c478bd9Sstevel@tonic-gate */ 75597c478bd9Sstevel@tonic-gate if (*cp == ' ' || *cp == '\t') { 75607c478bd9Sstevel@tonic-gate cp1 = cp; 75617c478bd9Sstevel@tonic-gate while (*++cp1 == ' ' || *cp1 == '\t') 75627c478bd9Sstevel@tonic-gate ; 75637c478bd9Sstevel@tonic-gate if (*cp1 == '=' || *cp1 == ':' || *cp1 == '&' || *cp1 == '|' || 75640a653502Swroche *cp1 == ';' || *cp1 == '\n' || *cp1 == '\0') { 75657c478bd9Sstevel@tonic-gate *cp = NULL; /* terminate token */ 75667c478bd9Sstevel@tonic-gate cp = cp1; 75677c478bd9Sstevel@tonic-gate } 75687c478bd9Sstevel@tonic-gate } 75697c478bd9Sstevel@tonic-gate if (tchar != NULL) { 75707c478bd9Sstevel@tonic-gate *tchar = *cp; /* save terminating character */ 75717c478bd9Sstevel@tonic-gate if (*tchar == '\0') { 75727c478bd9Sstevel@tonic-gate *tchar = '\n'; 75737c478bd9Sstevel@tonic-gate } 75747c478bd9Sstevel@tonic-gate } 75757c478bd9Sstevel@tonic-gate *cp++ = '\0'; /* terminate token, point to next */ 75767c478bd9Sstevel@tonic-gate *nextp = cp; /* set pointer to next character */ 75777c478bd9Sstevel@tonic-gate if (cp - tokenp - 1 == 0) { 75787c478bd9Sstevel@tonic-gate return (DEVFSADM_FAILURE); 75797c478bd9Sstevel@tonic-gate } 75807c478bd9Sstevel@tonic-gate *tokenpp = tokenp; 75817c478bd9Sstevel@tonic-gate return (DEVFSADM_SUCCESS); 75827c478bd9Sstevel@tonic-gate } 75837c478bd9Sstevel@tonic-gate 75847c478bd9Sstevel@tonic-gate /* 75857c478bd9Sstevel@tonic-gate * read or reread the driver aliases file 75867c478bd9Sstevel@tonic-gate */ 75877c478bd9Sstevel@tonic-gate static void 75887c478bd9Sstevel@tonic-gate read_driver_aliases_file(void) 75897c478bd9Sstevel@tonic-gate { 75907c478bd9Sstevel@tonic-gate 75917c478bd9Sstevel@tonic-gate driver_alias_t *save; 75927c478bd9Sstevel@tonic-gate driver_alias_t *lst_tail; 75937c478bd9Sstevel@tonic-gate driver_alias_t *ap; 75947c478bd9Sstevel@tonic-gate static int cached = FALSE; 75957c478bd9Sstevel@tonic-gate FILE *afd; 75967c478bd9Sstevel@tonic-gate char line[256]; 75977c478bd9Sstevel@tonic-gate char *cp; 75987c478bd9Sstevel@tonic-gate char *p; 75997c478bd9Sstevel@tonic-gate char t; 76007c478bd9Sstevel@tonic-gate int ln = 0; 76017c478bd9Sstevel@tonic-gate static struct stat cached_sb; 76027c478bd9Sstevel@tonic-gate struct stat current_sb; 76037c478bd9Sstevel@tonic-gate 76047c478bd9Sstevel@tonic-gate (void) stat(ALIASFILE, ¤t_sb); 76057c478bd9Sstevel@tonic-gate 76067c478bd9Sstevel@tonic-gate /* If already cached, check to see if it is still valid */ 76077c478bd9Sstevel@tonic-gate if (cached == TRUE) { 76087c478bd9Sstevel@tonic-gate 76097c478bd9Sstevel@tonic-gate if (current_sb.st_mtime == cached_sb.st_mtime) { 76107c478bd9Sstevel@tonic-gate vprint(FILES_MID, "%s cache valid\n", ALIASFILE); 76117c478bd9Sstevel@tonic-gate return; 76127c478bd9Sstevel@tonic-gate } 76137c478bd9Sstevel@tonic-gate 76147c478bd9Sstevel@tonic-gate vprint(FILES_MID, "invalidating %s cache\n", ALIASFILE); 76157c478bd9Sstevel@tonic-gate while (driver_aliases != NULL) { 76167c478bd9Sstevel@tonic-gate free(driver_aliases->alias_name); 76177c478bd9Sstevel@tonic-gate free(driver_aliases->driver_name); 76187c478bd9Sstevel@tonic-gate save = driver_aliases; 76197c478bd9Sstevel@tonic-gate driver_aliases = driver_aliases->next; 76207c478bd9Sstevel@tonic-gate free(save); 76217c478bd9Sstevel@tonic-gate } 76227c478bd9Sstevel@tonic-gate } else { 76237c478bd9Sstevel@tonic-gate cached = TRUE; 76247c478bd9Sstevel@tonic-gate } 76257c478bd9Sstevel@tonic-gate 76267c478bd9Sstevel@tonic-gate (void) stat(ALIASFILE, &cached_sb); 76277c478bd9Sstevel@tonic-gate 76287c478bd9Sstevel@tonic-gate vprint(FILES_MID, "loading binding file: %s\n", ALIASFILE); 76297c478bd9Sstevel@tonic-gate 76307c478bd9Sstevel@tonic-gate if ((afd = fopen(ALIASFILE, "r")) == NULL) { 76317c478bd9Sstevel@tonic-gate err_print(FOPEN_FAILED, ALIASFILE, strerror(errno)); 76327c478bd9Sstevel@tonic-gate devfsadm_exit(1); 7633537714daSvikram /*NOTREACHED*/ 76347c478bd9Sstevel@tonic-gate } 76357c478bd9Sstevel@tonic-gate 76361ca93273Seota while (fgets(line, sizeof (line), afd) != NULL) { 76377c478bd9Sstevel@tonic-gate ln++; 76381ca93273Seota /* cut off comments starting with '#' */ 76391ca93273Seota if ((cp = strchr(line, '#')) != NULL) 76401ca93273Seota *cp = '\0'; 76411ca93273Seota /* ignore comment or blank lines */ 76421ca93273Seota if (is_blank(line)) 76431ca93273Seota continue; 76447c478bd9Sstevel@tonic-gate cp = line; 76457c478bd9Sstevel@tonic-gate if (getnexttoken(cp, &cp, &p, &t) == DEVFSADM_FAILURE) { 76467c478bd9Sstevel@tonic-gate err_print(IGNORING_LINE_IN, ln, ALIASFILE); 76477c478bd9Sstevel@tonic-gate continue; 76487c478bd9Sstevel@tonic-gate } 76497c478bd9Sstevel@tonic-gate if (t == '\n' || t == '\0') { 76507c478bd9Sstevel@tonic-gate err_print(DRV_BUT_NO_ALIAS, ln, ALIASFILE); 76517c478bd9Sstevel@tonic-gate continue; 76527c478bd9Sstevel@tonic-gate } 76537c478bd9Sstevel@tonic-gate ap = (struct driver_alias *) 76540a653502Swroche s_zalloc(sizeof (struct driver_alias)); 76557c478bd9Sstevel@tonic-gate ap->driver_name = s_strdup(p); 76567c478bd9Sstevel@tonic-gate if (getnexttoken(cp, &cp, &p, &t) == DEVFSADM_FAILURE) { 76577c478bd9Sstevel@tonic-gate err_print(DRV_BUT_NO_ALIAS, ln, ALIASFILE); 76587c478bd9Sstevel@tonic-gate free(ap->driver_name); 76597c478bd9Sstevel@tonic-gate free(ap); 76607c478bd9Sstevel@tonic-gate continue; 76617c478bd9Sstevel@tonic-gate } 76627c478bd9Sstevel@tonic-gate if (*p == '"') { 76637c478bd9Sstevel@tonic-gate if (p[strlen(p) - 1] == '"') { 76647c478bd9Sstevel@tonic-gate p[strlen(p) - 1] = '\0'; 76657c478bd9Sstevel@tonic-gate p++; 76667c478bd9Sstevel@tonic-gate } 76677c478bd9Sstevel@tonic-gate } 76687c478bd9Sstevel@tonic-gate ap->alias_name = s_strdup(p); 76697c478bd9Sstevel@tonic-gate if (driver_aliases == NULL) { 76707c478bd9Sstevel@tonic-gate driver_aliases = ap; 76717c478bd9Sstevel@tonic-gate lst_tail = ap; 76727c478bd9Sstevel@tonic-gate } else { 76737c478bd9Sstevel@tonic-gate lst_tail->next = ap; 76747c478bd9Sstevel@tonic-gate lst_tail = ap; 76757c478bd9Sstevel@tonic-gate } 76767c478bd9Sstevel@tonic-gate } 76777c478bd9Sstevel@tonic-gate if (fclose(afd) == EOF) { 76787c478bd9Sstevel@tonic-gate err_print(FCLOSE_FAILED, ALIASFILE, strerror(errno)); 76797c478bd9Sstevel@tonic-gate } 76807c478bd9Sstevel@tonic-gate } 76817c478bd9Sstevel@tonic-gate 76827c478bd9Sstevel@tonic-gate /* 76837c478bd9Sstevel@tonic-gate * return TRUE if alias_name is an alias for driver_name, otherwise 76847c478bd9Sstevel@tonic-gate * return FALSE. 76857c478bd9Sstevel@tonic-gate */ 76867c478bd9Sstevel@tonic-gate static int 76877c478bd9Sstevel@tonic-gate alias(char *driver_name, char *alias_name) 76887c478bd9Sstevel@tonic-gate { 76897c478bd9Sstevel@tonic-gate driver_alias_t *alias; 76907c478bd9Sstevel@tonic-gate 76917c478bd9Sstevel@tonic-gate /* 76927c478bd9Sstevel@tonic-gate * check for a match 76937c478bd9Sstevel@tonic-gate */ 76947c478bd9Sstevel@tonic-gate for (alias = driver_aliases; alias != NULL; alias = alias->next) { 76957c478bd9Sstevel@tonic-gate if ((strcmp(alias->driver_name, driver_name) == 0) && 76967c478bd9Sstevel@tonic-gate (strcmp(alias->alias_name, alias_name) == 0)) { 76977c478bd9Sstevel@tonic-gate return (TRUE); 76987c478bd9Sstevel@tonic-gate } 76997c478bd9Sstevel@tonic-gate } 77007c478bd9Sstevel@tonic-gate return (FALSE); 77017c478bd9Sstevel@tonic-gate } 77027c478bd9Sstevel@tonic-gate 77037c478bd9Sstevel@tonic-gate /* 77047c478bd9Sstevel@tonic-gate * convenience functions 77057c478bd9Sstevel@tonic-gate */ 7706facf4a8dSllai static int 7707facf4a8dSllai s_stat(const char *path, struct stat *sbufp) 7708facf4a8dSllai { 7709facf4a8dSllai int rv; 7710facf4a8dSllai retry: 7711facf4a8dSllai if ((rv = stat(path, sbufp)) == -1) { 7712facf4a8dSllai if (errno == EINTR) 7713facf4a8dSllai goto retry; 7714facf4a8dSllai } 7715facf4a8dSllai return (rv); 7716facf4a8dSllai } 7717facf4a8dSllai 77187c478bd9Sstevel@tonic-gate static void * 77197c478bd9Sstevel@tonic-gate s_malloc(const size_t size) 77207c478bd9Sstevel@tonic-gate { 77217c478bd9Sstevel@tonic-gate void *rp; 77227c478bd9Sstevel@tonic-gate 77237c478bd9Sstevel@tonic-gate rp = malloc(size); 77247c478bd9Sstevel@tonic-gate if (rp == NULL) { 77257c478bd9Sstevel@tonic-gate err_print(MALLOC_FAILED, size); 77267c478bd9Sstevel@tonic-gate devfsadm_exit(1); 7727537714daSvikram /*NOTREACHED*/ 77287c478bd9Sstevel@tonic-gate } 77297c478bd9Sstevel@tonic-gate return (rp); 77307c478bd9Sstevel@tonic-gate } 77317c478bd9Sstevel@tonic-gate 77327c478bd9Sstevel@tonic-gate /* 77337c478bd9Sstevel@tonic-gate * convenience functions 77347c478bd9Sstevel@tonic-gate */ 77357c478bd9Sstevel@tonic-gate static void * 77367c478bd9Sstevel@tonic-gate s_realloc(void *ptr, const size_t size) 77377c478bd9Sstevel@tonic-gate { 77387c478bd9Sstevel@tonic-gate ptr = realloc(ptr, size); 77397c478bd9Sstevel@tonic-gate if (ptr == NULL) { 77407c478bd9Sstevel@tonic-gate err_print(REALLOC_FAILED, size); 77417c478bd9Sstevel@tonic-gate devfsadm_exit(1); 7742537714daSvikram /*NOTREACHED*/ 77437c478bd9Sstevel@tonic-gate } 77447c478bd9Sstevel@tonic-gate return (ptr); 77457c478bd9Sstevel@tonic-gate } 77467c478bd9Sstevel@tonic-gate 77477c478bd9Sstevel@tonic-gate static void * 77487c478bd9Sstevel@tonic-gate s_zalloc(const size_t size) 77497c478bd9Sstevel@tonic-gate { 77507c478bd9Sstevel@tonic-gate void *rp; 77517c478bd9Sstevel@tonic-gate 77527c478bd9Sstevel@tonic-gate rp = calloc(1, size); 77537c478bd9Sstevel@tonic-gate if (rp == NULL) { 77547c478bd9Sstevel@tonic-gate err_print(CALLOC_FAILED, size); 77557c478bd9Sstevel@tonic-gate devfsadm_exit(1); 7756537714daSvikram /*NOTREACHED*/ 77577c478bd9Sstevel@tonic-gate } 77587c478bd9Sstevel@tonic-gate return (rp); 77597c478bd9Sstevel@tonic-gate } 77607c478bd9Sstevel@tonic-gate 77617c478bd9Sstevel@tonic-gate char * 77627c478bd9Sstevel@tonic-gate s_strdup(const char *ptr) 77637c478bd9Sstevel@tonic-gate { 77647c478bd9Sstevel@tonic-gate void *rp; 77657c478bd9Sstevel@tonic-gate 77667c478bd9Sstevel@tonic-gate rp = strdup(ptr); 77677c478bd9Sstevel@tonic-gate if (rp == NULL) { 77687c478bd9Sstevel@tonic-gate err_print(STRDUP_FAILED, ptr); 77697c478bd9Sstevel@tonic-gate devfsadm_exit(1); 7770537714daSvikram /*NOTREACHED*/ 77717c478bd9Sstevel@tonic-gate } 77727c478bd9Sstevel@tonic-gate return (rp); 77737c478bd9Sstevel@tonic-gate } 77747c478bd9Sstevel@tonic-gate 77757c478bd9Sstevel@tonic-gate static void 77767c478bd9Sstevel@tonic-gate s_closedir(DIR *dirp) 77777c478bd9Sstevel@tonic-gate { 77787c478bd9Sstevel@tonic-gate retry: 77797c478bd9Sstevel@tonic-gate if (closedir(dirp) != 0) { 77807c478bd9Sstevel@tonic-gate if (errno == EINTR) 77817c478bd9Sstevel@tonic-gate goto retry; 77827c478bd9Sstevel@tonic-gate err_print(CLOSEDIR_FAILED, strerror(errno)); 77837c478bd9Sstevel@tonic-gate } 77847c478bd9Sstevel@tonic-gate } 77857c478bd9Sstevel@tonic-gate 77867c478bd9Sstevel@tonic-gate static void 77877c478bd9Sstevel@tonic-gate s_mkdirp(const char *path, const mode_t mode) 77887c478bd9Sstevel@tonic-gate { 77897c478bd9Sstevel@tonic-gate vprint(CHATTY_MID, "mkdirp(%s, 0x%lx)\n", path, mode); 77907c478bd9Sstevel@tonic-gate if (mkdirp(path, mode) == -1) { 77917c478bd9Sstevel@tonic-gate if (errno != EEXIST) { 77927c478bd9Sstevel@tonic-gate err_print(MKDIR_FAILED, path, mode, strerror(errno)); 77937c478bd9Sstevel@tonic-gate } 77947c478bd9Sstevel@tonic-gate } 77957c478bd9Sstevel@tonic-gate } 77967c478bd9Sstevel@tonic-gate 77977c478bd9Sstevel@tonic-gate static void 77987c478bd9Sstevel@tonic-gate s_unlink(const char *file) 77997c478bd9Sstevel@tonic-gate { 78007c478bd9Sstevel@tonic-gate retry: 78017c478bd9Sstevel@tonic-gate if (unlink(file) == -1) { 78027c478bd9Sstevel@tonic-gate if (errno == EINTR || errno == EAGAIN) 78037c478bd9Sstevel@tonic-gate goto retry; 78047c478bd9Sstevel@tonic-gate if (errno != ENOENT) { 78057c478bd9Sstevel@tonic-gate err_print(UNLINK_FAILED, file, strerror(errno)); 78067c478bd9Sstevel@tonic-gate } 78077c478bd9Sstevel@tonic-gate } 78087c478bd9Sstevel@tonic-gate } 78097c478bd9Sstevel@tonic-gate 78107c478bd9Sstevel@tonic-gate static void 78117c478bd9Sstevel@tonic-gate add_verbose_id(char *mid) 78127c478bd9Sstevel@tonic-gate { 78137c478bd9Sstevel@tonic-gate num_verbose++; 78147c478bd9Sstevel@tonic-gate verbose = s_realloc(verbose, num_verbose * sizeof (char *)); 78157c478bd9Sstevel@tonic-gate verbose[num_verbose - 1] = mid; 78167c478bd9Sstevel@tonic-gate } 78177c478bd9Sstevel@tonic-gate 78187c478bd9Sstevel@tonic-gate /* 78197c478bd9Sstevel@tonic-gate * returns DEVFSADM_TRUE if contents is a minor node in /devices. 78207c478bd9Sstevel@tonic-gate * If mn_root is not NULL, mn_root is set to: 78217c478bd9Sstevel@tonic-gate * if contents is a /dev node, mn_root = contents 78227c478bd9Sstevel@tonic-gate * OR 78237c478bd9Sstevel@tonic-gate * if contents is a /devices node, mn_root set to the '/' 78247c478bd9Sstevel@tonic-gate * following /devices. 78257c478bd9Sstevel@tonic-gate */ 78267c478bd9Sstevel@tonic-gate static int 78277c478bd9Sstevel@tonic-gate is_minor_node(char *contents, char **mn_root) 78287c478bd9Sstevel@tonic-gate { 78297c478bd9Sstevel@tonic-gate char *ptr; 78307c478bd9Sstevel@tonic-gate char device_prefix[100]; 78317c478bd9Sstevel@tonic-gate 78327c478bd9Sstevel@tonic-gate (void) snprintf(device_prefix, sizeof (device_prefix), "../devices/"); 78337c478bd9Sstevel@tonic-gate 78347c478bd9Sstevel@tonic-gate if ((ptr = strstr(contents, device_prefix)) != NULL) { 78357c478bd9Sstevel@tonic-gate if (mn_root != NULL) { 78367c478bd9Sstevel@tonic-gate /* mn_root should point to the / following /devices */ 78377c478bd9Sstevel@tonic-gate *mn_root = ptr += strlen(device_prefix) - 1; 78387c478bd9Sstevel@tonic-gate } 78397c478bd9Sstevel@tonic-gate return (DEVFSADM_TRUE); 78407c478bd9Sstevel@tonic-gate } 78417c478bd9Sstevel@tonic-gate 78427c478bd9Sstevel@tonic-gate (void) snprintf(device_prefix, sizeof (device_prefix), "/devices/"); 78437c478bd9Sstevel@tonic-gate 78447c478bd9Sstevel@tonic-gate if (strncmp(contents, device_prefix, strlen(device_prefix)) == 0) { 78457c478bd9Sstevel@tonic-gate if (mn_root != NULL) { 78467c478bd9Sstevel@tonic-gate /* mn_root should point to the / following /devices */ 78477c478bd9Sstevel@tonic-gate *mn_root = contents + strlen(device_prefix) - 1; 78487c478bd9Sstevel@tonic-gate } 78497c478bd9Sstevel@tonic-gate return (DEVFSADM_TRUE); 78507c478bd9Sstevel@tonic-gate } 78517c478bd9Sstevel@tonic-gate 78527c478bd9Sstevel@tonic-gate if (mn_root != NULL) { 78537c478bd9Sstevel@tonic-gate *mn_root = contents; 78547c478bd9Sstevel@tonic-gate } 78557c478bd9Sstevel@tonic-gate return (DEVFSADM_FALSE); 78567c478bd9Sstevel@tonic-gate } 78577c478bd9Sstevel@tonic-gate 78587c478bd9Sstevel@tonic-gate /* 78597c478bd9Sstevel@tonic-gate * Add the specified property to nvl. 78607c478bd9Sstevel@tonic-gate * Returns: 78617c478bd9Sstevel@tonic-gate * 0 successfully added 78627c478bd9Sstevel@tonic-gate * -1 an error occurred 78637c478bd9Sstevel@tonic-gate * 1 could not add the property for reasons not due to errors. 78647c478bd9Sstevel@tonic-gate */ 78657c478bd9Sstevel@tonic-gate static int 78667c478bd9Sstevel@tonic-gate add_property(nvlist_t *nvl, di_prop_t prop) 78677c478bd9Sstevel@tonic-gate { 78687c478bd9Sstevel@tonic-gate char *name; 78697c478bd9Sstevel@tonic-gate char *attr_name; 78707c478bd9Sstevel@tonic-gate int n, len; 78717c478bd9Sstevel@tonic-gate int32_t *int32p; 78727c478bd9Sstevel@tonic-gate int64_t *int64p; 78737c478bd9Sstevel@tonic-gate char *str; 78747c478bd9Sstevel@tonic-gate char **strarray; 78757c478bd9Sstevel@tonic-gate uchar_t *bytep; 78767c478bd9Sstevel@tonic-gate int rv = 0; 78777c478bd9Sstevel@tonic-gate int i; 78787c478bd9Sstevel@tonic-gate 78797c478bd9Sstevel@tonic-gate if ((name = di_prop_name(prop)) == NULL) 78807c478bd9Sstevel@tonic-gate return (-1); 78817c478bd9Sstevel@tonic-gate 78827c478bd9Sstevel@tonic-gate len = sizeof (DEV_PROP_PREFIX) + strlen(name); 78837c478bd9Sstevel@tonic-gate if ((attr_name = malloc(len)) == NULL) 78847c478bd9Sstevel@tonic-gate return (-1); 78857c478bd9Sstevel@tonic-gate 78867c478bd9Sstevel@tonic-gate (void) strlcpy(attr_name, DEV_PROP_PREFIX, len); 78877c478bd9Sstevel@tonic-gate (void) strlcat(attr_name, name, len); 78887c478bd9Sstevel@tonic-gate 78897c478bd9Sstevel@tonic-gate switch (di_prop_type(prop)) { 78907c478bd9Sstevel@tonic-gate case DI_PROP_TYPE_BOOLEAN: 78917c478bd9Sstevel@tonic-gate if (nvlist_add_boolean(nvl, attr_name) != 0) 78927c478bd9Sstevel@tonic-gate goto out; 78937c478bd9Sstevel@tonic-gate break; 78947c478bd9Sstevel@tonic-gate 78957c478bd9Sstevel@tonic-gate case DI_PROP_TYPE_INT: 78967c478bd9Sstevel@tonic-gate if ((n = di_prop_ints(prop, &int32p)) < 1) 78977c478bd9Sstevel@tonic-gate goto out; 78987c478bd9Sstevel@tonic-gate 78997c478bd9Sstevel@tonic-gate if (n <= (PROP_LEN_LIMIT / sizeof (int32_t))) { 79007c478bd9Sstevel@tonic-gate if (nvlist_add_int32_array(nvl, attr_name, int32p, 79017c478bd9Sstevel@tonic-gate n) != 0) 79027c478bd9Sstevel@tonic-gate goto out; 79037c478bd9Sstevel@tonic-gate } else 79047c478bd9Sstevel@tonic-gate rv = 1; 79057c478bd9Sstevel@tonic-gate break; 79067c478bd9Sstevel@tonic-gate 79077c478bd9Sstevel@tonic-gate case DI_PROP_TYPE_INT64: 79087c478bd9Sstevel@tonic-gate if ((n = di_prop_int64(prop, &int64p)) < 1) 79097c478bd9Sstevel@tonic-gate goto out; 79107c478bd9Sstevel@tonic-gate 79117c478bd9Sstevel@tonic-gate if (n <= (PROP_LEN_LIMIT / sizeof (int64_t))) { 79127c478bd9Sstevel@tonic-gate if (nvlist_add_int64_array(nvl, attr_name, int64p, 79137c478bd9Sstevel@tonic-gate n) != 0) 79147c478bd9Sstevel@tonic-gate goto out; 79157c478bd9Sstevel@tonic-gate } else 79167c478bd9Sstevel@tonic-gate rv = 1; 79177c478bd9Sstevel@tonic-gate break; 79187c478bd9Sstevel@tonic-gate 79197c478bd9Sstevel@tonic-gate case DI_PROP_TYPE_BYTE: 79207c478bd9Sstevel@tonic-gate case DI_PROP_TYPE_UNKNOWN: 79217c478bd9Sstevel@tonic-gate if ((n = di_prop_bytes(prop, &bytep)) < 1) 79227c478bd9Sstevel@tonic-gate goto out; 79237c478bd9Sstevel@tonic-gate 79247c478bd9Sstevel@tonic-gate if (n <= PROP_LEN_LIMIT) { 79257c478bd9Sstevel@tonic-gate if (nvlist_add_byte_array(nvl, attr_name, bytep, n) 79267c478bd9Sstevel@tonic-gate != 0) 79277c478bd9Sstevel@tonic-gate goto out; 79287c478bd9Sstevel@tonic-gate } else 79297c478bd9Sstevel@tonic-gate rv = 1; 79307c478bd9Sstevel@tonic-gate break; 79317c478bd9Sstevel@tonic-gate 79327c478bd9Sstevel@tonic-gate case DI_PROP_TYPE_STRING: 79337c478bd9Sstevel@tonic-gate if ((n = di_prop_strings(prop, &str)) < 1) 79347c478bd9Sstevel@tonic-gate goto out; 79357c478bd9Sstevel@tonic-gate 79367c478bd9Sstevel@tonic-gate if ((strarray = malloc(n * sizeof (char *))) == NULL) 79377c478bd9Sstevel@tonic-gate goto out; 79387c478bd9Sstevel@tonic-gate 79397c478bd9Sstevel@tonic-gate len = 0; 79407c478bd9Sstevel@tonic-gate for (i = 0; i < n; i++) { 79417c478bd9Sstevel@tonic-gate strarray[i] = str + len; 79427c478bd9Sstevel@tonic-gate len += strlen(strarray[i]) + 1; 79437c478bd9Sstevel@tonic-gate } 79447c478bd9Sstevel@tonic-gate 79457c478bd9Sstevel@tonic-gate if (len <= PROP_LEN_LIMIT) { 79467c478bd9Sstevel@tonic-gate if (nvlist_add_string_array(nvl, attr_name, strarray, 79477c478bd9Sstevel@tonic-gate n) != 0) { 79487c478bd9Sstevel@tonic-gate free(strarray); 79497c478bd9Sstevel@tonic-gate goto out; 79507c478bd9Sstevel@tonic-gate } 79517c478bd9Sstevel@tonic-gate } else 79527c478bd9Sstevel@tonic-gate rv = 1; 79537c478bd9Sstevel@tonic-gate free(strarray); 79547c478bd9Sstevel@tonic-gate break; 79557c478bd9Sstevel@tonic-gate 79567c478bd9Sstevel@tonic-gate default: 79577c478bd9Sstevel@tonic-gate rv = 1; 79587c478bd9Sstevel@tonic-gate break; 79597c478bd9Sstevel@tonic-gate } 79607c478bd9Sstevel@tonic-gate 79617c478bd9Sstevel@tonic-gate free(attr_name); 79627c478bd9Sstevel@tonic-gate return (rv); 79637c478bd9Sstevel@tonic-gate 79647c478bd9Sstevel@tonic-gate out: 79657c478bd9Sstevel@tonic-gate free(attr_name); 79667c478bd9Sstevel@tonic-gate return (-1); 79677c478bd9Sstevel@tonic-gate } 79687c478bd9Sstevel@tonic-gate 79697c478bd9Sstevel@tonic-gate static void 79707c478bd9Sstevel@tonic-gate free_dev_names(struct devlink_cb_arg *x) 79717c478bd9Sstevel@tonic-gate { 79727c478bd9Sstevel@tonic-gate int i; 79737c478bd9Sstevel@tonic-gate 79747c478bd9Sstevel@tonic-gate for (i = 0; i < x->count; i++) { 79757c478bd9Sstevel@tonic-gate free(x->dev_names[i]); 79767c478bd9Sstevel@tonic-gate free(x->link_contents[i]); 79777c478bd9Sstevel@tonic-gate } 79787c478bd9Sstevel@tonic-gate } 79797c478bd9Sstevel@tonic-gate 79807c478bd9Sstevel@tonic-gate /* callback function for di_devlink_cache_walk */ 79817c478bd9Sstevel@tonic-gate static int 79827c478bd9Sstevel@tonic-gate devlink_cb(di_devlink_t dl, void *arg) 79837c478bd9Sstevel@tonic-gate { 79847c478bd9Sstevel@tonic-gate struct devlink_cb_arg *x = (struct devlink_cb_arg *)arg; 79857c478bd9Sstevel@tonic-gate const char *path; 79867c478bd9Sstevel@tonic-gate const char *content; 79877c478bd9Sstevel@tonic-gate 79887c478bd9Sstevel@tonic-gate if ((path = di_devlink_path(dl)) == NULL || 79897c478bd9Sstevel@tonic-gate (content = di_devlink_content(dl)) == NULL || 799012d8cf2aSjg (x->dev_names[x->count] = s_strdup(path)) == NULL) 79917c478bd9Sstevel@tonic-gate goto out; 79927c478bd9Sstevel@tonic-gate 799312d8cf2aSjg if ((x->link_contents[x->count] = s_strdup(content)) == NULL) { 79947c478bd9Sstevel@tonic-gate free(x->dev_names[x->count]); 79957c478bd9Sstevel@tonic-gate goto out; 79967c478bd9Sstevel@tonic-gate } 79977c478bd9Sstevel@tonic-gate 79987c478bd9Sstevel@tonic-gate x->count++; 79997c478bd9Sstevel@tonic-gate if (x->count >= MAX_DEV_NAME_COUNT) 80007c478bd9Sstevel@tonic-gate return (DI_WALK_TERMINATE); 80017c478bd9Sstevel@tonic-gate 80027c478bd9Sstevel@tonic-gate return (DI_WALK_CONTINUE); 80037c478bd9Sstevel@tonic-gate 80047c478bd9Sstevel@tonic-gate out: 80057c478bd9Sstevel@tonic-gate x->rv = -1; 80067c478bd9Sstevel@tonic-gate free_dev_names(x); 80077c478bd9Sstevel@tonic-gate return (DI_WALK_TERMINATE); 80087c478bd9Sstevel@tonic-gate } 80097c478bd9Sstevel@tonic-gate 80107c478bd9Sstevel@tonic-gate /* 80117c478bd9Sstevel@tonic-gate * Lookup dev name corresponding to the phys_path. 80127c478bd9Sstevel@tonic-gate * phys_path is path to a node or minor node. 80137c478bd9Sstevel@tonic-gate * Returns: 80147c478bd9Sstevel@tonic-gate * 0 with *dev_name set to the dev name 80157c478bd9Sstevel@tonic-gate * Lookup succeeded and dev_name found 80167c478bd9Sstevel@tonic-gate * 0 with *dev_name set to NULL 80177c478bd9Sstevel@tonic-gate * Lookup encountered no errors but dev name not found 80187c478bd9Sstevel@tonic-gate * -1 80197c478bd9Sstevel@tonic-gate * Lookup failed 80207c478bd9Sstevel@tonic-gate */ 80217c478bd9Sstevel@tonic-gate static int 80227c478bd9Sstevel@tonic-gate lookup_dev_name(char *phys_path, char **dev_name) 80237c478bd9Sstevel@tonic-gate { 80247c478bd9Sstevel@tonic-gate struct devlink_cb_arg cb_arg; 80257c478bd9Sstevel@tonic-gate 80267c478bd9Sstevel@tonic-gate *dev_name = NULL; 80277c478bd9Sstevel@tonic-gate 80287c478bd9Sstevel@tonic-gate cb_arg.count = 0; 80297c478bd9Sstevel@tonic-gate cb_arg.rv = 0; 80307c478bd9Sstevel@tonic-gate (void) di_devlink_cache_walk(devlink_cache, NULL, phys_path, 80317c478bd9Sstevel@tonic-gate DI_PRIMARY_LINK, &cb_arg, devlink_cb); 80327c478bd9Sstevel@tonic-gate 80337c478bd9Sstevel@tonic-gate if (cb_arg.rv == -1) 80347c478bd9Sstevel@tonic-gate return (-1); 80357c478bd9Sstevel@tonic-gate 80367c478bd9Sstevel@tonic-gate if (cb_arg.count > 0) { 803712d8cf2aSjg *dev_name = s_strdup(cb_arg.dev_names[0]); 80387c478bd9Sstevel@tonic-gate free_dev_names(&cb_arg); 80397c478bd9Sstevel@tonic-gate if (*dev_name == NULL) 80407c478bd9Sstevel@tonic-gate return (-1); 80417c478bd9Sstevel@tonic-gate } 80427c478bd9Sstevel@tonic-gate 80437c478bd9Sstevel@tonic-gate return (0); 80447c478bd9Sstevel@tonic-gate } 80457c478bd9Sstevel@tonic-gate 80467c478bd9Sstevel@tonic-gate static char * 80477c478bd9Sstevel@tonic-gate lookup_disk_dev_name(char *node_path) 80487c478bd9Sstevel@tonic-gate { 80497c478bd9Sstevel@tonic-gate struct devlink_cb_arg cb_arg; 80507c478bd9Sstevel@tonic-gate char *dev_name = NULL; 80517c478bd9Sstevel@tonic-gate int i; 80527c478bd9Sstevel@tonic-gate char *p; 80537c478bd9Sstevel@tonic-gate int len1, len2; 80547c478bd9Sstevel@tonic-gate 80557c478bd9Sstevel@tonic-gate #define DEV_RDSK "/dev/rdsk/" 80567c478bd9Sstevel@tonic-gate #define DISK_RAW_MINOR ",raw" 80577c478bd9Sstevel@tonic-gate 80587c478bd9Sstevel@tonic-gate cb_arg.count = 0; 80597c478bd9Sstevel@tonic-gate cb_arg.rv = 0; 80607c478bd9Sstevel@tonic-gate (void) di_devlink_cache_walk(devlink_cache, NULL, node_path, 80617c478bd9Sstevel@tonic-gate DI_PRIMARY_LINK, &cb_arg, devlink_cb); 80627c478bd9Sstevel@tonic-gate 80637c478bd9Sstevel@tonic-gate if (cb_arg.rv == -1 || cb_arg.count == 0) 80647c478bd9Sstevel@tonic-gate return (NULL); 80657c478bd9Sstevel@tonic-gate 80667c478bd9Sstevel@tonic-gate /* first try lookup based on /dev/rdsk name */ 80677c478bd9Sstevel@tonic-gate for (i = 0; i < cb_arg.count; i++) { 80687c478bd9Sstevel@tonic-gate if (strncmp(cb_arg.dev_names[i], DEV_RDSK, 80697c478bd9Sstevel@tonic-gate sizeof (DEV_RDSK) - 1) == 0) { 807012d8cf2aSjg dev_name = s_strdup(cb_arg.dev_names[i]); 80717c478bd9Sstevel@tonic-gate break; 80727c478bd9Sstevel@tonic-gate } 80737c478bd9Sstevel@tonic-gate } 80747c478bd9Sstevel@tonic-gate 80757c478bd9Sstevel@tonic-gate if (dev_name == NULL) { 80767c478bd9Sstevel@tonic-gate /* now try lookup based on a minor name ending with ",raw" */ 80777c478bd9Sstevel@tonic-gate len1 = sizeof (DISK_RAW_MINOR) - 1; 80787c478bd9Sstevel@tonic-gate for (i = 0; i < cb_arg.count; i++) { 80797c478bd9Sstevel@tonic-gate len2 = strlen(cb_arg.link_contents[i]); 80807c478bd9Sstevel@tonic-gate if (len2 >= len1 && 80817c478bd9Sstevel@tonic-gate strcmp(cb_arg.link_contents[i] + len2 - len1, 80827c478bd9Sstevel@tonic-gate DISK_RAW_MINOR) == 0) { 808312d8cf2aSjg dev_name = s_strdup(cb_arg.dev_names[i]); 80847c478bd9Sstevel@tonic-gate break; 80857c478bd9Sstevel@tonic-gate } 80867c478bd9Sstevel@tonic-gate } 80877c478bd9Sstevel@tonic-gate } 80887c478bd9Sstevel@tonic-gate 80897c478bd9Sstevel@tonic-gate free_dev_names(&cb_arg); 80907c478bd9Sstevel@tonic-gate 809112d8cf2aSjg if (dev_name == NULL) 809212d8cf2aSjg return (NULL); 80937c478bd9Sstevel@tonic-gate if (strlen(dev_name) == 0) { 80947c478bd9Sstevel@tonic-gate free(dev_name); 80957c478bd9Sstevel@tonic-gate return (NULL); 80967c478bd9Sstevel@tonic-gate } 80977c478bd9Sstevel@tonic-gate 80987c478bd9Sstevel@tonic-gate /* if the name contains slice or partition number strip it */ 80997c478bd9Sstevel@tonic-gate p = dev_name + strlen(dev_name) - 1; 81007c478bd9Sstevel@tonic-gate if (isdigit(*p)) { 81017c478bd9Sstevel@tonic-gate while (p != dev_name && isdigit(*p)) 81027c478bd9Sstevel@tonic-gate p--; 81037c478bd9Sstevel@tonic-gate if (*p == 's' || *p == 'p') 81047c478bd9Sstevel@tonic-gate *p = '\0'; 81057c478bd9Sstevel@tonic-gate } 81067c478bd9Sstevel@tonic-gate 81077c478bd9Sstevel@tonic-gate return (dev_name); 81087c478bd9Sstevel@tonic-gate } 81097c478bd9Sstevel@tonic-gate 811030294554Sphitran static char * 811130294554Sphitran lookup_lofi_dev_name(char *node_path, char *minor) 811230294554Sphitran { 811330294554Sphitran struct devlink_cb_arg cb_arg; 811430294554Sphitran char *dev_name = NULL; 811530294554Sphitran int i; 811630294554Sphitran int len1, len2; 811730294554Sphitran 811830294554Sphitran cb_arg.count = 0; 811930294554Sphitran cb_arg.rv = 0; 812030294554Sphitran (void) di_devlink_cache_walk(devlink_cache, NULL, node_path, 812130294554Sphitran DI_PRIMARY_LINK, &cb_arg, devlink_cb); 812230294554Sphitran 812330294554Sphitran if (cb_arg.rv == -1 || cb_arg.count == 0) 812430294554Sphitran return (NULL); 812530294554Sphitran 812630294554Sphitran /* lookup based on a minor name ending with ",raw" */ 812730294554Sphitran len1 = strlen(minor); 812830294554Sphitran for (i = 0; i < cb_arg.count; i++) { 812930294554Sphitran len2 = strlen(cb_arg.link_contents[i]); 813030294554Sphitran if (len2 >= len1 && 813130294554Sphitran strcmp(cb_arg.link_contents[i] + len2 - len1, 813230294554Sphitran minor) == 0) { 813330294554Sphitran dev_name = s_strdup(cb_arg.dev_names[i]); 813430294554Sphitran break; 813530294554Sphitran } 813630294554Sphitran } 813730294554Sphitran 813830294554Sphitran free_dev_names(&cb_arg); 813930294554Sphitran 814030294554Sphitran if (dev_name == NULL) 814130294554Sphitran return (NULL); 814230294554Sphitran if (strlen(dev_name) == 0) { 814330294554Sphitran free(dev_name); 814430294554Sphitran return (NULL); 814530294554Sphitran } 814630294554Sphitran 814730294554Sphitran return (dev_name); 814830294554Sphitran } 814930294554Sphitran 81507c478bd9Sstevel@tonic-gate static char * 81517c478bd9Sstevel@tonic-gate lookup_network_dev_name(char *node_path, char *driver_name) 81527c478bd9Sstevel@tonic-gate { 81537c478bd9Sstevel@tonic-gate char *dev_name = NULL; 81547c478bd9Sstevel@tonic-gate char phys_path[MAXPATHLEN]; 81557c478bd9Sstevel@tonic-gate 81567c478bd9Sstevel@tonic-gate if (lookup_dev_name(node_path, &dev_name) == -1) 81577c478bd9Sstevel@tonic-gate return (NULL); 81587c478bd9Sstevel@tonic-gate 81597c478bd9Sstevel@tonic-gate if (dev_name == NULL) { 81607c478bd9Sstevel@tonic-gate /* dlpi style-2 only interface */ 81617c478bd9Sstevel@tonic-gate (void) snprintf(phys_path, sizeof (phys_path), 81627c478bd9Sstevel@tonic-gate "/pseudo/clone@0:%s", driver_name); 81637c478bd9Sstevel@tonic-gate if (lookup_dev_name(phys_path, &dev_name) == -1 || 81647c478bd9Sstevel@tonic-gate dev_name == NULL) 81657c478bd9Sstevel@tonic-gate return (NULL); 81667c478bd9Sstevel@tonic-gate } 81677c478bd9Sstevel@tonic-gate 81687c478bd9Sstevel@tonic-gate return (dev_name); 81697c478bd9Sstevel@tonic-gate } 81707c478bd9Sstevel@tonic-gate 8171db11e6feSjacobs static char * 8172db11e6feSjacobs lookup_printer_dev_name(char *node_path) 8173db11e6feSjacobs { 8174db11e6feSjacobs struct devlink_cb_arg cb_arg; 8175db11e6feSjacobs char *dev_name = NULL; 8176db11e6feSjacobs int i; 8177db11e6feSjacobs 8178db11e6feSjacobs #define DEV_PRINTERS "/dev/printers/" 8179db11e6feSjacobs 8180db11e6feSjacobs cb_arg.count = 0; 8181db11e6feSjacobs cb_arg.rv = 0; 8182db11e6feSjacobs (void) di_devlink_cache_walk(devlink_cache, NULL, node_path, 8183db11e6feSjacobs DI_PRIMARY_LINK, &cb_arg, devlink_cb); 8184db11e6feSjacobs 8185db11e6feSjacobs if (cb_arg.rv == -1 || cb_arg.count == 0) 8186db11e6feSjacobs return (NULL); 8187db11e6feSjacobs 8188db11e6feSjacobs /* first try lookup based on /dev/printers name */ 8189db11e6feSjacobs for (i = 0; i < cb_arg.count; i++) { 8190db11e6feSjacobs if (strncmp(cb_arg.dev_names[i], DEV_PRINTERS, 8191db11e6feSjacobs sizeof (DEV_PRINTERS) - 1) == 0) { 8192db11e6feSjacobs dev_name = s_strdup(cb_arg.dev_names[i]); 8193db11e6feSjacobs break; 8194db11e6feSjacobs } 8195db11e6feSjacobs } 8196db11e6feSjacobs 8197db11e6feSjacobs /* fallback to the first name */ 8198db11e6feSjacobs if ((dev_name == NULL) && (cb_arg.count > 0)) 8199db11e6feSjacobs dev_name = s_strdup(cb_arg.dev_names[0]); 8200db11e6feSjacobs 8201db11e6feSjacobs free_dev_names(&cb_arg); 8202db11e6feSjacobs 8203db11e6feSjacobs return (dev_name); 8204db11e6feSjacobs } 8205db11e6feSjacobs 82067c478bd9Sstevel@tonic-gate /* 82077c478bd9Sstevel@tonic-gate * Build an nvlist containing all attributes for devfs events. 82087c478bd9Sstevel@tonic-gate * Returns nvlist pointer on success, NULL on failure. 82097c478bd9Sstevel@tonic-gate */ 82107c478bd9Sstevel@tonic-gate static nvlist_t * 82117c478bd9Sstevel@tonic-gate build_event_attributes(char *class, char *subclass, char *node_path, 821230294554Sphitran di_node_t node, char *driver_name, int instance, char *minor) 82137c478bd9Sstevel@tonic-gate { 82147c478bd9Sstevel@tonic-gate nvlist_t *nvl; 82157c478bd9Sstevel@tonic-gate int err = 0; 82167c478bd9Sstevel@tonic-gate di_prop_t prop; 82177c478bd9Sstevel@tonic-gate int count; 82187c478bd9Sstevel@tonic-gate char *prop_name; 82197c478bd9Sstevel@tonic-gate int x; 82207c478bd9Sstevel@tonic-gate char *dev_name = NULL; 82217c478bd9Sstevel@tonic-gate int dev_name_lookup_err = 0; 82227c478bd9Sstevel@tonic-gate 82237c478bd9Sstevel@tonic-gate if ((err = nvlist_alloc(&nvl, NV_UNIQUE_NAME_TYPE, 0)) != 0) { 82247c478bd9Sstevel@tonic-gate nvl = NULL; 82257c478bd9Sstevel@tonic-gate goto out; 82267c478bd9Sstevel@tonic-gate } 82277c478bd9Sstevel@tonic-gate 82287c478bd9Sstevel@tonic-gate if ((err = nvlist_add_int32(nvl, EV_VERSION, EV_V1)) != 0) 82297c478bd9Sstevel@tonic-gate goto out; 82307c478bd9Sstevel@tonic-gate 82317c478bd9Sstevel@tonic-gate if ((err = nvlist_add_string(nvl, DEV_PHYS_PATH, node_path)) != 0) 82327c478bd9Sstevel@tonic-gate goto out; 82337c478bd9Sstevel@tonic-gate 82347c478bd9Sstevel@tonic-gate if (strcmp(class, EC_DEV_ADD) != 0 && 82357c478bd9Sstevel@tonic-gate strcmp(class, EC_DEV_REMOVE) != 0) 82367c478bd9Sstevel@tonic-gate return (nvl); 82377c478bd9Sstevel@tonic-gate 82387c478bd9Sstevel@tonic-gate if (driver_name == NULL || instance == -1) 82397c478bd9Sstevel@tonic-gate goto out; 82407c478bd9Sstevel@tonic-gate 82417c478bd9Sstevel@tonic-gate if (strcmp(subclass, ESC_DISK) == 0) { 82427c478bd9Sstevel@tonic-gate if ((dev_name = lookup_disk_dev_name(node_path)) == NULL) { 82437c478bd9Sstevel@tonic-gate dev_name_lookup_err = 1; 82447c478bd9Sstevel@tonic-gate goto out; 82457c478bd9Sstevel@tonic-gate } 82467c478bd9Sstevel@tonic-gate } else if (strcmp(subclass, ESC_NETWORK) == 0) { 82477c478bd9Sstevel@tonic-gate if ((dev_name = lookup_network_dev_name(node_path, driver_name)) 82487c478bd9Sstevel@tonic-gate == NULL) { 82497c478bd9Sstevel@tonic-gate dev_name_lookup_err = 1; 82507c478bd9Sstevel@tonic-gate goto out; 82517c478bd9Sstevel@tonic-gate } 8252db11e6feSjacobs } else if (strcmp(subclass, ESC_PRINTER) == 0) { 8253db11e6feSjacobs if ((dev_name = lookup_printer_dev_name(node_path)) == NULL) { 8254db11e6feSjacobs dev_name_lookup_err = 1; 8255db11e6feSjacobs goto out; 8256db11e6feSjacobs } 825730294554Sphitran } else if (strcmp(subclass, ESC_LOFI) == 0) { 825830294554Sphitran /* 825930294554Sphitran * The raw minor node is created or removed after the block 826030294554Sphitran * node. Lofi devfs events are dependent on this behavior. 826130294554Sphitran * Generate the sysevent only for the raw minor node. 826230294554Sphitran */ 826330294554Sphitran if (strstr(minor, "raw") == NULL) { 826430294554Sphitran if (nvl) { 826530294554Sphitran nvlist_free(nvl); 826630294554Sphitran } 826730294554Sphitran return (NULL); 826830294554Sphitran } 826930294554Sphitran if ((dev_name = lookup_lofi_dev_name(node_path, minor)) == 827030294554Sphitran NULL) { 827130294554Sphitran dev_name_lookup_err = 1; 827230294554Sphitran goto out; 827330294554Sphitran } 82747c478bd9Sstevel@tonic-gate } 82757c478bd9Sstevel@tonic-gate 82767c478bd9Sstevel@tonic-gate if (dev_name) { 82777c478bd9Sstevel@tonic-gate if ((err = nvlist_add_string(nvl, DEV_NAME, dev_name)) != 0) 82787c478bd9Sstevel@tonic-gate goto out; 82797c478bd9Sstevel@tonic-gate free(dev_name); 82807c478bd9Sstevel@tonic-gate dev_name = NULL; 82817c478bd9Sstevel@tonic-gate } 82827c478bd9Sstevel@tonic-gate 82837c478bd9Sstevel@tonic-gate if ((err = nvlist_add_string(nvl, DEV_DRIVER_NAME, driver_name)) != 0) 82847c478bd9Sstevel@tonic-gate goto out; 82857c478bd9Sstevel@tonic-gate 82867c478bd9Sstevel@tonic-gate if ((err = nvlist_add_int32(nvl, DEV_INSTANCE, instance)) != 0) 82877c478bd9Sstevel@tonic-gate goto out; 82887c478bd9Sstevel@tonic-gate 82897c478bd9Sstevel@tonic-gate if (strcmp(class, EC_DEV_ADD) == 0) { 82907c478bd9Sstevel@tonic-gate /* add properties */ 82917c478bd9Sstevel@tonic-gate count = 0; 82927c478bd9Sstevel@tonic-gate for (prop = di_prop_next(node, DI_PROP_NIL); 82937c478bd9Sstevel@tonic-gate prop != DI_PROP_NIL && count < MAX_PROP_COUNT; 82947c478bd9Sstevel@tonic-gate prop = di_prop_next(node, prop)) { 82957c478bd9Sstevel@tonic-gate 82967c478bd9Sstevel@tonic-gate if (di_prop_devt(prop) != DDI_DEV_T_NONE) 82977c478bd9Sstevel@tonic-gate continue; 82987c478bd9Sstevel@tonic-gate 82997c478bd9Sstevel@tonic-gate if ((x = add_property(nvl, prop)) == 0) 83007c478bd9Sstevel@tonic-gate count++; 83017c478bd9Sstevel@tonic-gate else if (x == -1) { 83027c478bd9Sstevel@tonic-gate if ((prop_name = di_prop_name(prop)) == NULL) 83037c478bd9Sstevel@tonic-gate prop_name = ""; 83047c478bd9Sstevel@tonic-gate err_print(PROP_ADD_FAILED, prop_name); 83057c478bd9Sstevel@tonic-gate goto out; 83067c478bd9Sstevel@tonic-gate } 83077c478bd9Sstevel@tonic-gate } 83087c478bd9Sstevel@tonic-gate } 83097c478bd9Sstevel@tonic-gate 83107c478bd9Sstevel@tonic-gate return (nvl); 83117c478bd9Sstevel@tonic-gate 83127c478bd9Sstevel@tonic-gate out: 83137c478bd9Sstevel@tonic-gate if (nvl) 83147c478bd9Sstevel@tonic-gate nvlist_free(nvl); 83157c478bd9Sstevel@tonic-gate 83167c478bd9Sstevel@tonic-gate if (dev_name) 83177c478bd9Sstevel@tonic-gate free(dev_name); 83187c478bd9Sstevel@tonic-gate 831993239addSjohnlev if (dev_name_lookup_err) { 832093239addSjohnlev /* 832193239addSjohnlev * If a lofi mount fails, the /devices node may well have 832293239addSjohnlev * disappeared by the time we run, so let's not complain. 832393239addSjohnlev */ 832493239addSjohnlev if (strcmp(subclass, ESC_LOFI) != 0) 832593239addSjohnlev err_print(DEV_NAME_LOOKUP_FAILED, node_path); 832693239addSjohnlev } else { 83277c478bd9Sstevel@tonic-gate err_print(BUILD_EVENT_ATTR_FAILED, (err) ? strerror(err) : ""); 832893239addSjohnlev } 83297c478bd9Sstevel@tonic-gate return (NULL); 83307c478bd9Sstevel@tonic-gate } 83317c478bd9Sstevel@tonic-gate 83327c478bd9Sstevel@tonic-gate static void 83337c478bd9Sstevel@tonic-gate log_event(char *class, char *subclass, nvlist_t *nvl) 83347c478bd9Sstevel@tonic-gate { 83357c478bd9Sstevel@tonic-gate sysevent_id_t eid; 83367c478bd9Sstevel@tonic-gate 83377c478bd9Sstevel@tonic-gate if (sysevent_post_event(class, subclass, "SUNW", DEVFSADMD, 83387c478bd9Sstevel@tonic-gate nvl, &eid) != 0) { 83397c478bd9Sstevel@tonic-gate err_print(LOG_EVENT_FAILED, strerror(errno)); 83407c478bd9Sstevel@tonic-gate } 83417c478bd9Sstevel@tonic-gate } 83427c478bd9Sstevel@tonic-gate 8343f05faa4eSjacobs /* 8344f05faa4eSjacobs * When devfsadmd needs to generate sysevents, they are queued for later 8345f05faa4eSjacobs * delivery this allows them to be delivered after the devlinks db cache has 8346f05faa4eSjacobs * been flushed guaranteeing that applications consuming these events have 8347f05faa4eSjacobs * access to an accurate devlinks db. The queue is a FIFO, sysevents to be 8348f05faa4eSjacobs * inserted in the front of the queue and consumed off the back. 8349f05faa4eSjacobs */ 8350f05faa4eSjacobs static void 8351f05faa4eSjacobs enqueue_sysevent(char *class, char *subclass, nvlist_t *nvl) 8352f05faa4eSjacobs { 8353f05faa4eSjacobs syseventq_t *tmp; 8354f05faa4eSjacobs 8355f05faa4eSjacobs if ((tmp = s_zalloc(sizeof (*tmp))) == NULL) 8356f05faa4eSjacobs return; 8357f05faa4eSjacobs 8358f05faa4eSjacobs tmp->class = s_strdup(class); 8359f05faa4eSjacobs tmp->subclass = s_strdup(subclass); 8360f05faa4eSjacobs tmp->nvl = nvl; 8361f05faa4eSjacobs 8362f05faa4eSjacobs (void) mutex_lock(&syseventq_mutex); 8363f05faa4eSjacobs if (syseventq_front != NULL) 8364f05faa4eSjacobs syseventq_front->next = tmp; 8365f05faa4eSjacobs else 8366f05faa4eSjacobs syseventq_back = tmp; 8367f05faa4eSjacobs syseventq_front = tmp; 8368f05faa4eSjacobs (void) mutex_unlock(&syseventq_mutex); 8369f05faa4eSjacobs } 8370f05faa4eSjacobs 8371f05faa4eSjacobs static void 8372f05faa4eSjacobs process_syseventq() 8373f05faa4eSjacobs { 8374f05faa4eSjacobs (void) mutex_lock(&syseventq_mutex); 8375f05faa4eSjacobs while (syseventq_back != NULL) { 8376f05faa4eSjacobs syseventq_t *tmp = syseventq_back; 8377f05faa4eSjacobs 8378f05faa4eSjacobs vprint(CHATTY_MID, "sending queued event: %s, %s\n", 83790a653502Swroche tmp->class, tmp->subclass); 8380f05faa4eSjacobs 8381f05faa4eSjacobs log_event(tmp->class, tmp->subclass, tmp->nvl); 8382f05faa4eSjacobs 8383f05faa4eSjacobs if (tmp->class != NULL) 8384f05faa4eSjacobs free(tmp->class); 8385f05faa4eSjacobs if (tmp->subclass != NULL) 8386f05faa4eSjacobs free(tmp->subclass); 8387f05faa4eSjacobs if (tmp->nvl != NULL) 8388f05faa4eSjacobs nvlist_free(tmp->nvl); 8389f05faa4eSjacobs syseventq_back = syseventq_back->next; 8390f05faa4eSjacobs if (syseventq_back == NULL) 8391f05faa4eSjacobs syseventq_front = NULL; 8392f05faa4eSjacobs free(tmp); 8393f05faa4eSjacobs } 8394f05faa4eSjacobs (void) mutex_unlock(&syseventq_mutex); 8395f05faa4eSjacobs } 8396f05faa4eSjacobs 83977c478bd9Sstevel@tonic-gate static void 8398f05faa4eSjacobs build_and_enq_event(char *class, char *subclass, char *node_path, 839930294554Sphitran di_node_t node, char *minor) 84007c478bd9Sstevel@tonic-gate { 84017c478bd9Sstevel@tonic-gate nvlist_t *nvl; 84027c478bd9Sstevel@tonic-gate 8403f05faa4eSjacobs vprint(CHATTY_MID, "build_and_enq_event(%s, %s, %s, 0x%8.8x)\n", 84040a653502Swroche class, subclass, node_path, (int)node); 8405f05faa4eSjacobs 84067c478bd9Sstevel@tonic-gate if (node != DI_NODE_NIL) 84077c478bd9Sstevel@tonic-gate nvl = build_event_attributes(class, subclass, node_path, node, 840830294554Sphitran di_driver_name(node), di_instance(node), minor); 84097c478bd9Sstevel@tonic-gate else 84107c478bd9Sstevel@tonic-gate nvl = build_event_attributes(class, subclass, node_path, node, 841130294554Sphitran NULL, -1, minor); 84127c478bd9Sstevel@tonic-gate 84137c478bd9Sstevel@tonic-gate if (nvl) { 8414f05faa4eSjacobs enqueue_sysevent(class, subclass, nvl); 84157c478bd9Sstevel@tonic-gate } 84167c478bd9Sstevel@tonic-gate } 8417facf4a8dSllai 84181ca93273Seota /* 84191ca93273Seota * is_blank() returns 1 (true) if a line specified is composed of 84201ca93273Seota * whitespace characters only. otherwise, it returns 0 (false). 84211ca93273Seota * 84221ca93273Seota * Note. the argument (line) must be null-terminated. 84231ca93273Seota */ 84241ca93273Seota static int 84251ca93273Seota is_blank(char *line) 84261ca93273Seota { 84271ca93273Seota for (/* nothing */; *line != '\0'; line++) 84281ca93273Seota if (!isspace(*line)) 84291ca93273Seota return (0); 84301ca93273Seota return (1); 84311ca93273Seota } 84321ca93273Seota 8433aa646b9dSvikram /* 8434aa646b9dSvikram * Functions to deal with the no-further-processing hash 8435aa646b9dSvikram */ 8436aa646b9dSvikram 8437aa646b9dSvikram static void 8438aa646b9dSvikram nfphash_create(void) 8439aa646b9dSvikram { 8440aa646b9dSvikram assert(nfp_hash == NULL); 8441aa646b9dSvikram nfp_hash = s_zalloc(NFP_HASH_SZ * sizeof (item_t *)); 8442aa646b9dSvikram } 8443aa646b9dSvikram 8444aa646b9dSvikram static int 8445aa646b9dSvikram nfphash_fcn(char *key) 8446aa646b9dSvikram { 8447aa646b9dSvikram int i; 8448aa646b9dSvikram uint64_t sum = 0; 8449aa646b9dSvikram 8450aa646b9dSvikram for (i = 0; key[i] != '\0'; i++) { 8451aa646b9dSvikram sum += (uchar_t)key[i]; 8452aa646b9dSvikram } 8453aa646b9dSvikram 8454aa646b9dSvikram return (sum % NFP_HASH_SZ); 8455aa646b9dSvikram } 8456aa646b9dSvikram 8457aa646b9dSvikram static item_t * 8458aa646b9dSvikram nfphash_lookup(char *key) 8459aa646b9dSvikram { 8460aa646b9dSvikram int index; 8461aa646b9dSvikram item_t *ip; 8462aa646b9dSvikram 8463aa646b9dSvikram index = nfphash_fcn(key); 8464aa646b9dSvikram 8465aa646b9dSvikram assert(index >= 0); 8466aa646b9dSvikram 8467aa646b9dSvikram for (ip = nfp_hash[index]; ip; ip = ip->i_next) { 8468aa646b9dSvikram if (strcmp(ip->i_key, key) == 0) 8469aa646b9dSvikram return (ip); 8470aa646b9dSvikram } 8471aa646b9dSvikram 8472aa646b9dSvikram return (NULL); 8473aa646b9dSvikram } 8474aa646b9dSvikram 8475aa646b9dSvikram static void 8476aa646b9dSvikram nfphash_insert(char *key) 8477aa646b9dSvikram { 8478aa646b9dSvikram item_t *ip; 8479aa646b9dSvikram int index; 8480aa646b9dSvikram 8481aa646b9dSvikram index = nfphash_fcn(key); 8482aa646b9dSvikram 8483aa646b9dSvikram assert(index >= 0); 8484aa646b9dSvikram 8485aa646b9dSvikram ip = s_zalloc(sizeof (item_t)); 8486aa646b9dSvikram ip->i_key = s_strdup(key); 8487aa646b9dSvikram 8488aa646b9dSvikram ip->i_next = nfp_hash[index]; 8489aa646b9dSvikram nfp_hash[index] = ip; 8490aa646b9dSvikram } 8491aa646b9dSvikram 8492aa646b9dSvikram static void 8493aa646b9dSvikram nfphash_destroy(void) 8494aa646b9dSvikram { 8495aa646b9dSvikram int i; 8496aa646b9dSvikram item_t *ip; 8497aa646b9dSvikram 8498aa646b9dSvikram for (i = 0; i < NFP_HASH_SZ; i++) { 8499aa646b9dSvikram /*LINTED*/ 8500aa646b9dSvikram while (ip = nfp_hash[i]) { 8501aa646b9dSvikram nfp_hash[i] = ip->i_next; 8502aa646b9dSvikram free(ip->i_key); 8503aa646b9dSvikram free(ip); 8504aa646b9dSvikram } 8505aa646b9dSvikram } 8506aa646b9dSvikram 8507aa646b9dSvikram free(nfp_hash); 8508aa646b9dSvikram nfp_hash = NULL; 8509aa646b9dSvikram } 8510aa646b9dSvikram 8511facf4a8dSllai static int 8512facf4a8dSllai devname_kcall(int subcmd, void *args) 8513facf4a8dSllai { 8514facf4a8dSllai int error = 0; 8515facf4a8dSllai 8516facf4a8dSllai switch (subcmd) { 8517facf4a8dSllai case MODDEVNAME_LOOKUPDOOR: 8518facf4a8dSllai error = modctl(MODDEVNAME, subcmd, (uintptr_t)args); 8519facf4a8dSllai if (error) { 8520facf4a8dSllai vprint(INFO_MID, "modctl(MODDEVNAME, " 8521facf4a8dSllai "MODDEVNAME_LOOKUPDOOR) failed - %s\n", 8522facf4a8dSllai strerror(errno)); 8523facf4a8dSllai } 8524facf4a8dSllai break; 8525facf4a8dSllai default: 8526facf4a8dSllai error = EINVAL; 8527facf4a8dSllai break; 8528facf4a8dSllai } 8529facf4a8dSllai return (error); 8530facf4a8dSllai } 8531facf4a8dSllai 8532facf4a8dSllai /* ARGSUSED */ 8533facf4a8dSllai static void 8534facf4a8dSllai devname_lookup_handler(void *cookie, char *argp, size_t arg_size, 8535facf4a8dSllai door_desc_t *dp, uint_t n_desc) 8536facf4a8dSllai { 8537facf4a8dSllai int32_t error = 0; 8538facf4a8dSllai door_cred_t dcred; 8539facf4a8dSllai struct dca_impl dci; 8540facf4a8dSllai uint8_t cmd; 8541facf4a8dSllai sdev_door_res_t res; 8542facf4a8dSllai sdev_door_arg_t *args; 8543facf4a8dSllai 8544facf4a8dSllai if (argp == NULL || arg_size == 0) { 8545facf4a8dSllai vprint(DEVNAME_MID, "devname_lookup_handler: argp wrong\n"); 8546facf4a8dSllai error = DEVFSADM_RUN_INVALID; 8547facf4a8dSllai goto done; 8548facf4a8dSllai } 8549facf4a8dSllai vprint(DEVNAME_MID, "devname_lookup_handler\n"); 8550facf4a8dSllai 8551facf4a8dSllai if (door_cred(&dcred) != 0 || dcred.dc_euid != 0) { 8552facf4a8dSllai vprint(DEVNAME_MID, "devname_lookup_handler: cred wrong\n"); 8553facf4a8dSllai error = DEVFSADM_RUN_EPERM; 8554facf4a8dSllai goto done; 8555facf4a8dSllai } 8556facf4a8dSllai 8557facf4a8dSllai args = (sdev_door_arg_t *)argp; 8558facf4a8dSllai cmd = args->devfsadm_cmd; 8559facf4a8dSllai 8560facf4a8dSllai vprint(DEVNAME_MID, "devname_lookup_handler: cmd %d\n", cmd); 8561facf4a8dSllai switch (cmd) { 8562facf4a8dSllai case DEVFSADMD_RUN_ALL: 8563facf4a8dSllai /* 8564facf4a8dSllai * run "devfsadm" 8565facf4a8dSllai */ 8566facf4a8dSllai dci.dci_root = "/"; 8567facf4a8dSllai dci.dci_minor = NULL; 8568facf4a8dSllai dci.dci_driver = NULL; 8569facf4a8dSllai dci.dci_error = 0; 8570facf4a8dSllai dci.dci_flags = 0; 8571facf4a8dSllai dci.dci_arg = NULL; 8572facf4a8dSllai 8573facf4a8dSllai lock_dev(); 8574c9cc1492SJerry Gilliam update_drvconf((major_t)-1, 0); 8575facf4a8dSllai dci.dci_flags |= DCA_FLUSH_PATHINST; 8576facf4a8dSllai 8577facf4a8dSllai pre_and_post_cleanup(RM_PRE); 857866ea8494SVikram Hegde devi_tree_walk(&dci, DI_CACHE_SNAPSHOT_FLAGS, NULL); 8579facf4a8dSllai error = (int32_t)dci.dci_error; 8580facf4a8dSllai if (!error) { 8581facf4a8dSllai pre_and_post_cleanup(RM_POST); 8582facf4a8dSllai update_database = TRUE; 8583facf4a8dSllai unlock_dev(SYNC_STATE); 8584facf4a8dSllai update_database = FALSE; 8585facf4a8dSllai } else { 8586facf4a8dSllai if (DEVFSADM_DEBUG_ON) { 8587facf4a8dSllai vprint(INFO_MID, "devname_lookup_handler: " 8588facf4a8dSllai "DEVFSADMD_RUN_ALL failed\n"); 8589facf4a8dSllai } 8590facf4a8dSllai 8591facf4a8dSllai unlock_dev(SYNC_STATE); 8592facf4a8dSllai } 8593facf4a8dSllai break; 8594facf4a8dSllai default: 8595facf4a8dSllai /* log an error here? */ 8596facf4a8dSllai error = DEVFSADM_RUN_NOTSUP; 8597facf4a8dSllai break; 8598facf4a8dSllai } 8599facf4a8dSllai 8600facf4a8dSllai done: 8601facf4a8dSllai vprint(DEVNAME_MID, "devname_lookup_handler: error %d\n", error); 8602facf4a8dSllai res.devfsadm_error = error; 8603facf4a8dSllai (void) door_return((char *)&res, sizeof (struct sdev_door_res), 8604facf4a8dSllai NULL, 0); 8605facf4a8dSllai } 86068d483882Smlf 86078d483882Smlf 86088d483882Smlf di_devlink_handle_t 86098d483882Smlf devfsadm_devlink_cache(void) 86108d483882Smlf { 86118d483882Smlf return (devlink_cache); 86128d483882Smlf } 86138d483882Smlf 86148d483882Smlf int 86158d483882Smlf devfsadm_reserve_id_cache(devlink_re_t re_array[], enumerate_file_t *head) 86168d483882Smlf { 86178d483882Smlf enumerate_file_t *entry; 86188d483882Smlf int nelem; 86198d483882Smlf int i; 86208d483882Smlf int subex; 86218d483882Smlf char *re; 86228d483882Smlf size_t size; 86238d483882Smlf regmatch_t *pmch; 86248d483882Smlf 86258d483882Smlf /* 86268d483882Smlf * Check the <RE, subexp> array passed in and compile it. 86278d483882Smlf */ 86288d483882Smlf for (i = 0; re_array[i].d_re; i++) { 86298d483882Smlf if (re_array[i].d_subexp == 0) { 86308d483882Smlf err_print("bad subexp value in RE: %s\n", 86318d483882Smlf re_array[i].d_re); 86328d483882Smlf goto bad_re; 86338d483882Smlf } 86348d483882Smlf 86358d483882Smlf re = re_array[i].d_re; 86368d483882Smlf if (regcomp(&re_array[i].d_rcomp, re, REG_EXTENDED) != 0) { 86378d483882Smlf err_print("reg. exp. failed to compile: %s\n", re); 86388d483882Smlf goto bad_re; 86398d483882Smlf } 86408d483882Smlf subex = re_array[i].d_subexp; 86418d483882Smlf nelem = subex + 1; 86428d483882Smlf re_array[i].d_pmatch = s_malloc(sizeof (regmatch_t) * nelem); 86438d483882Smlf } 86448d483882Smlf 86458d483882Smlf entry = head ? head : enumerate_reserved; 86468d483882Smlf for (; entry; entry = entry->er_next) { 86478d483882Smlf if (entry->er_id) { 86488d483882Smlf vprint(RSBY_MID, "entry %s already has ID %s\n", 86498d483882Smlf entry->er_file, entry->er_id); 86508d483882Smlf continue; 86518d483882Smlf } 86528d483882Smlf for (i = 0; re_array[i].d_re; i++) { 86538d483882Smlf subex = re_array[i].d_subexp; 86548d483882Smlf pmch = re_array[i].d_pmatch; 86558d483882Smlf if (regexec(&re_array[i].d_rcomp, entry->er_file, 86568d483882Smlf subex + 1, pmch, 0) != 0) { 86578d483882Smlf /* No match */ 86588d483882Smlf continue; 86598d483882Smlf } 86608d483882Smlf size = pmch[subex].rm_eo - pmch[subex].rm_so; 86618d483882Smlf entry->er_id = s_malloc(size + 1); 86628d483882Smlf (void) strncpy(entry->er_id, 86638d483882Smlf &entry->er_file[pmch[subex].rm_so], size); 86648d483882Smlf entry->er_id[size] = '\0'; 86658d483882Smlf if (head) { 86668d483882Smlf vprint(RSBY_MID, "devlink(%s) matches RE(%s). " 86678d483882Smlf "ID is %s\n", entry->er_file, 86688d483882Smlf re_array[i].d_re, entry->er_id); 86698d483882Smlf } else { 86708d483882Smlf vprint(RSBY_MID, "rsrv entry(%s) matches " 86718d483882Smlf "RE(%s) ID is %s\n", entry->er_file, 86728d483882Smlf re_array[i].d_re, entry->er_id); 86738d483882Smlf } 86748d483882Smlf break; 86758d483882Smlf } 86768d483882Smlf } 86778d483882Smlf 86788d483882Smlf for (i = 0; re_array[i].d_re; i++) { 86798d483882Smlf regfree(&re_array[i].d_rcomp); 86808d483882Smlf assert(re_array[i].d_pmatch); 86818d483882Smlf free(re_array[i].d_pmatch); 86828d483882Smlf } 86838d483882Smlf 86848d483882Smlf entry = head ? head : enumerate_reserved; 86858d483882Smlf for (; entry; entry = entry->er_next) { 86868d483882Smlf if (entry->er_id == NULL) 86878d483882Smlf continue; 86888d483882Smlf if (head) { 86898d483882Smlf vprint(RSBY_MID, "devlink: %s\n", entry->er_file); 86908d483882Smlf vprint(RSBY_MID, "ID: %s\n", entry->er_id); 86918d483882Smlf } else { 86928d483882Smlf vprint(RSBY_MID, "reserve file entry: %s\n", 86938d483882Smlf entry->er_file); 86948d483882Smlf vprint(RSBY_MID, "reserve file id: %s\n", 86958d483882Smlf entry->er_id); 86968d483882Smlf } 86978d483882Smlf } 86988d483882Smlf 86998d483882Smlf return (DEVFSADM_SUCCESS); 87008d483882Smlf 87018d483882Smlf bad_re: 87028d483882Smlf for (i = i-1; i >= 0; i--) { 87038d483882Smlf regfree(&re_array[i].d_rcomp); 87048d483882Smlf assert(re_array[i].d_pmatch); 87058d483882Smlf free(re_array[i].d_pmatch); 87068d483882Smlf } 87078d483882Smlf return (DEVFSADM_FAILURE); 87088d483882Smlf } 8709e37c6c37Scth 8710e37c6c37Scth /* 8711e37c6c37Scth * Return 1 if we have reserved links. 8712e37c6c37Scth */ 8713e37c6c37Scth int 8714e37c6c37Scth devfsadm_have_reserved() 8715e37c6c37Scth { 8716e37c6c37Scth return (enumerate_reserved ? 1 : 0); 8717e37c6c37Scth } 87188d483882Smlf 87198d483882Smlf /* 87208d483882Smlf * This functions errs on the side of caution. If there is any error 87218d483882Smlf * we assume that the devlink is *not* reserved 87228d483882Smlf */ 87238d483882Smlf int 87248d483882Smlf devfsadm_is_reserved(devlink_re_t re_array[], char *devlink) 87258d483882Smlf { 87268d483882Smlf int match; 87278d483882Smlf enumerate_file_t estruct = {NULL}; 87288d483882Smlf enumerate_file_t *entry; 87298d483882Smlf 87308d483882Smlf match = 0; 87318d483882Smlf estruct.er_file = devlink; 87328d483882Smlf estruct.er_id = NULL; 87338d483882Smlf estruct.er_next = NULL; 87348d483882Smlf 87358d483882Smlf if (devfsadm_reserve_id_cache(re_array, &estruct) != DEVFSADM_SUCCESS) { 87368d483882Smlf err_print("devfsadm_is_reserved: devlink (%s) does not " 87378d483882Smlf "match RE\n", devlink); 87388d483882Smlf return (0); 87398d483882Smlf } 87408d483882Smlf if (estruct.er_id == NULL) { 87418d483882Smlf err_print("devfsadm_is_reserved: ID derived from devlink %s " 87428d483882Smlf "is NULL\n", devlink); 87438d483882Smlf return (0); 87448d483882Smlf } 87458d483882Smlf 87468d483882Smlf entry = enumerate_reserved; 87478d483882Smlf for (; entry; entry = entry->er_next) { 87488d483882Smlf if (entry->er_id == NULL) 87498d483882Smlf continue; 87508d483882Smlf if (strcmp(entry->er_id, estruct.er_id) != 0) 87518d483882Smlf continue; 87528d483882Smlf match = 1; 87538d483882Smlf vprint(RSBY_MID, "reserve file entry (%s) and devlink (%s) " 87548d483882Smlf "match\n", entry->er_file, devlink); 87558d483882Smlf break; 87568d483882Smlf } 87578d483882Smlf 87588d483882Smlf free(estruct.er_id); 87598d483882Smlf return (match); 87608d483882Smlf } 8761