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 53ad28c1eSrm * Common Development and Distribution License (the "License"). 63ad28c1eSrm * 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 */ 217c478bd9Sstevel@tonic-gate /* 22324baee5Sstevep * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 237c478bd9Sstevel@tonic-gate * Use is subject to license terms. 247c478bd9Sstevel@tonic-gate */ 257c478bd9Sstevel@tonic-gate 267c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 277c478bd9Sstevel@tonic-gate 287c478bd9Sstevel@tonic-gate /* 297c478bd9Sstevel@tonic-gate * NOTES: To be expanded. 307c478bd9Sstevel@tonic-gate * 317c478bd9Sstevel@tonic-gate * The SMF inetd. 327c478bd9Sstevel@tonic-gate * 337c478bd9Sstevel@tonic-gate * Below are some high level notes of the operation of the SMF inetd. The 347c478bd9Sstevel@tonic-gate * notes don't go into any real detail, and the viewer of this file is 357c478bd9Sstevel@tonic-gate * encouraged to look at the code and its associated comments to better 367c478bd9Sstevel@tonic-gate * understand inetd's operation. This saves the potential for the code 377c478bd9Sstevel@tonic-gate * and these notes diverging over time. 387c478bd9Sstevel@tonic-gate * 397c478bd9Sstevel@tonic-gate * Inetd's major work is done from the context of event_loop(). Within this 407c478bd9Sstevel@tonic-gate * loop, inetd polls for events arriving from a number of different file 417c478bd9Sstevel@tonic-gate * descriptors, representing the following event types, and initiates 427c478bd9Sstevel@tonic-gate * any necessary event processing: 437c478bd9Sstevel@tonic-gate * - incoming network connections/datagrams. 447c478bd9Sstevel@tonic-gate * - notification of terminated processes (discovered via contract events). 457c478bd9Sstevel@tonic-gate * - instance specific events originating from the SMF master restarter. 467c478bd9Sstevel@tonic-gate * - stop/refresh requests from the inetd method processes (coming in on a 477c478bd9Sstevel@tonic-gate * Unix Domain socket). 487c478bd9Sstevel@tonic-gate * There's also a timeout set for the poll, which is set to the nearest 497c478bd9Sstevel@tonic-gate * scheduled timer in a timer queue that inetd uses to perform delayed 507c478bd9Sstevel@tonic-gate * processing, such as bind retries. 517c478bd9Sstevel@tonic-gate * The SIGHUP and SIGINT signals can also interrupt the poll, and will 527c478bd9Sstevel@tonic-gate * result in inetd being refreshed or stopped respectively, as was the 537c478bd9Sstevel@tonic-gate * behavior with the old inetd. 547c478bd9Sstevel@tonic-gate * 557c478bd9Sstevel@tonic-gate * Inetd implements a state machine for each instance. The states within the 567c478bd9Sstevel@tonic-gate * machine are: offline, online, disabled, maintenance, uninitialized and 577c478bd9Sstevel@tonic-gate * specializations of the offline state for when an instance exceeds one of 587c478bd9Sstevel@tonic-gate * its DOS limits. The state of an instance can be changed as a 597c478bd9Sstevel@tonic-gate * result/side-effect of one of the above events occurring, or inetd being 607c478bd9Sstevel@tonic-gate * started up. The ongoing state of an instance is stored in the SMF 617c478bd9Sstevel@tonic-gate * repository, as required of SMF restarters. This enables an administrator 627c478bd9Sstevel@tonic-gate * to view the state of each instance, and, if inetd was to terminate 637c478bd9Sstevel@tonic-gate * unexpectedly, it could use the stored state to re-commence where it left off. 647c478bd9Sstevel@tonic-gate * 657c478bd9Sstevel@tonic-gate * Within the state machine a number of methods are run (if provided) as part 667c478bd9Sstevel@tonic-gate * of a state transition to aid/ effect a change in an instance's state. The 677c478bd9Sstevel@tonic-gate * supported methods are: offline, online, disable, refresh and start. The 687c478bd9Sstevel@tonic-gate * latter of these is the equivalent of the server program and its arguments 697c478bd9Sstevel@tonic-gate * in the old inetd. 707c478bd9Sstevel@tonic-gate * 717c478bd9Sstevel@tonic-gate * Events from the SMF master restarter come in on a number of threads 727c478bd9Sstevel@tonic-gate * created in the registration routine of librestart, the delegated restarter 737c478bd9Sstevel@tonic-gate * library. These threads call into the restart_event_proxy() function 747c478bd9Sstevel@tonic-gate * when an event arrives. To serialize the processing of instances, these events 757c478bd9Sstevel@tonic-gate * are then written down a pipe to the process's main thread, which listens 767c478bd9Sstevel@tonic-gate * for these events via a poll call, with the file descriptor of the other 777c478bd9Sstevel@tonic-gate * end of the pipe in its read set, and processes the event appropriately. 787c478bd9Sstevel@tonic-gate * When the event has been processed (which may be delayed if the instance 797c478bd9Sstevel@tonic-gate * for which the event is for is in the process of executing one of its methods 807c478bd9Sstevel@tonic-gate * as part of a state transition) it writes an acknowledgement back down the 817c478bd9Sstevel@tonic-gate * pipe the event was received on. The thread in restart_event_proxy() that 827c478bd9Sstevel@tonic-gate * wrote the event will read the acknowledgement it was blocked upon, and will 837c478bd9Sstevel@tonic-gate * then be able to return to its caller, thus implicitly acknowledging the 847c478bd9Sstevel@tonic-gate * event, and allowing another event to be written down the pipe for the main 857c478bd9Sstevel@tonic-gate * thread to process. 867c478bd9Sstevel@tonic-gate */ 877c478bd9Sstevel@tonic-gate 887c478bd9Sstevel@tonic-gate 897c478bd9Sstevel@tonic-gate #include <netdb.h> 907c478bd9Sstevel@tonic-gate #include <stdio.h> 91004388ebScasper #include <stdio_ext.h> 927c478bd9Sstevel@tonic-gate #include <stdlib.h> 937c478bd9Sstevel@tonic-gate #include <strings.h> 947c478bd9Sstevel@tonic-gate #include <unistd.h> 957c478bd9Sstevel@tonic-gate #include <assert.h> 967c478bd9Sstevel@tonic-gate #include <sys/types.h> 977c478bd9Sstevel@tonic-gate #include <sys/socket.h> 987c478bd9Sstevel@tonic-gate #include <netinet/in.h> 997c478bd9Sstevel@tonic-gate #include <fcntl.h> 1007c478bd9Sstevel@tonic-gate #include <signal.h> 1017c478bd9Sstevel@tonic-gate #include <errno.h> 1027c478bd9Sstevel@tonic-gate #include <locale.h> 1037c478bd9Sstevel@tonic-gate #include <syslog.h> 1047c478bd9Sstevel@tonic-gate #include <libintl.h> 1057c478bd9Sstevel@tonic-gate #include <librestart.h> 1067c478bd9Sstevel@tonic-gate #include <pthread.h> 1077c478bd9Sstevel@tonic-gate #include <sys/stat.h> 1087c478bd9Sstevel@tonic-gate #include <time.h> 1097c478bd9Sstevel@tonic-gate #include <limits.h> 1107c478bd9Sstevel@tonic-gate #include <libgen.h> 1117c478bd9Sstevel@tonic-gate #include <tcpd.h> 1127c478bd9Sstevel@tonic-gate #include <libscf.h> 1137c478bd9Sstevel@tonic-gate #include <libuutil.h> 1147c478bd9Sstevel@tonic-gate #include <stddef.h> 1157c478bd9Sstevel@tonic-gate #include <bsm/adt_event.h> 1167cd7ea0bSrs #include <ucred.h> 1177c478bd9Sstevel@tonic-gate #include "inetd_impl.h" 1187c478bd9Sstevel@tonic-gate 1197c478bd9Sstevel@tonic-gate /* path to inetd's binary */ 1207c478bd9Sstevel@tonic-gate #define INETD_PATH "/usr/lib/inet/inetd" 1217c478bd9Sstevel@tonic-gate 1227c478bd9Sstevel@tonic-gate /* 1237c478bd9Sstevel@tonic-gate * inetd's default configuration file paths. /etc/inetd/inetd.conf is set 1247c478bd9Sstevel@tonic-gate * be be the primary file, so it is checked before /etc/inetd.conf. 1257c478bd9Sstevel@tonic-gate */ 1267c478bd9Sstevel@tonic-gate #define PRIMARY_DEFAULT_CONF_FILE "/etc/inet/inetd.conf" 1277c478bd9Sstevel@tonic-gate #define SECONDARY_DEFAULT_CONF_FILE "/etc/inetd.conf" 1287c478bd9Sstevel@tonic-gate 1297c478bd9Sstevel@tonic-gate /* Arguments passed to this binary to request which method to execute. */ 1307c478bd9Sstevel@tonic-gate #define START_METHOD_ARG "start" 1317c478bd9Sstevel@tonic-gate #define STOP_METHOD_ARG "stop" 1327c478bd9Sstevel@tonic-gate #define REFRESH_METHOD_ARG "refresh" 1337c478bd9Sstevel@tonic-gate 1347c478bd9Sstevel@tonic-gate /* connection backlog for unix domain socket */ 1357c478bd9Sstevel@tonic-gate #define UDS_BACKLOG 2 1367c478bd9Sstevel@tonic-gate 1377c478bd9Sstevel@tonic-gate /* number of retries to recv() a request on the UDS socket before giving up */ 1387c478bd9Sstevel@tonic-gate #define UDS_RECV_RETRIES 10 1397c478bd9Sstevel@tonic-gate 1407c478bd9Sstevel@tonic-gate /* enumeration of the different ends of a pipe */ 1417c478bd9Sstevel@tonic-gate enum pipe_end { 1427c478bd9Sstevel@tonic-gate PE_CONSUMER, 1437c478bd9Sstevel@tonic-gate PE_PRODUCER 1447c478bd9Sstevel@tonic-gate }; 1457c478bd9Sstevel@tonic-gate 1467c478bd9Sstevel@tonic-gate typedef struct { 1477c478bd9Sstevel@tonic-gate internal_inst_state_t istate; 1487c478bd9Sstevel@tonic-gate const char *name; 1497c478bd9Sstevel@tonic-gate restarter_instance_state_t smf_state; 1507c478bd9Sstevel@tonic-gate instance_method_t method_running; 1517c478bd9Sstevel@tonic-gate } state_info_t; 1527c478bd9Sstevel@tonic-gate 1537c478bd9Sstevel@tonic-gate 1547c478bd9Sstevel@tonic-gate /* 1557c478bd9Sstevel@tonic-gate * Collection of information for each state. 1567c478bd9Sstevel@tonic-gate * NOTE: This table is indexed into using the internal_inst_state_t 1577c478bd9Sstevel@tonic-gate * enumeration, so the ordering needs to be kept in synch. 1587c478bd9Sstevel@tonic-gate */ 1597c478bd9Sstevel@tonic-gate static state_info_t states[] = { 1607c478bd9Sstevel@tonic-gate {IIS_UNINITIALIZED, "uninitialized", RESTARTER_STATE_UNINIT, 1617c478bd9Sstevel@tonic-gate IM_NONE}, 1627c478bd9Sstevel@tonic-gate {IIS_ONLINE, "online", RESTARTER_STATE_ONLINE, IM_START}, 1637c478bd9Sstevel@tonic-gate {IIS_IN_ONLINE_METHOD, "online_method", RESTARTER_STATE_OFFLINE, 1647c478bd9Sstevel@tonic-gate IM_ONLINE}, 1657c478bd9Sstevel@tonic-gate {IIS_OFFLINE, "offline", RESTARTER_STATE_OFFLINE, IM_NONE}, 1667c478bd9Sstevel@tonic-gate {IIS_IN_OFFLINE_METHOD, "offline_method", RESTARTER_STATE_OFFLINE, 1677c478bd9Sstevel@tonic-gate IM_OFFLINE}, 1687c478bd9Sstevel@tonic-gate {IIS_DISABLED, "disabled", RESTARTER_STATE_DISABLED, IM_NONE}, 1697c478bd9Sstevel@tonic-gate {IIS_IN_DISABLE_METHOD, "disabled_method", RESTARTER_STATE_OFFLINE, 1707c478bd9Sstevel@tonic-gate IM_DISABLE}, 1717c478bd9Sstevel@tonic-gate {IIS_IN_REFRESH_METHOD, "refresh_method", RESTARTER_STATE_ONLINE, 1727c478bd9Sstevel@tonic-gate IM_REFRESH}, 1737c478bd9Sstevel@tonic-gate {IIS_MAINTENANCE, "maintenance", RESTARTER_STATE_MAINT, IM_NONE}, 1747c478bd9Sstevel@tonic-gate {IIS_OFFLINE_CONRATE, "cr_offline", RESTARTER_STATE_OFFLINE, IM_NONE}, 1757c478bd9Sstevel@tonic-gate {IIS_OFFLINE_BIND, "bind_offline", RESTARTER_STATE_OFFLINE, IM_NONE}, 1767c478bd9Sstevel@tonic-gate {IIS_OFFLINE_COPIES, "copies_offline", RESTARTER_STATE_OFFLINE, 1777c478bd9Sstevel@tonic-gate IM_NONE}, 1787c478bd9Sstevel@tonic-gate {IIS_DEGRADED, "degraded", RESTARTER_STATE_DEGRADED, IM_NONE}, 1797c478bd9Sstevel@tonic-gate {IIS_NONE, "none", RESTARTER_STATE_NONE, IM_NONE} 1807c478bd9Sstevel@tonic-gate }; 1817c478bd9Sstevel@tonic-gate 1827c478bd9Sstevel@tonic-gate /* 1837c478bd9Sstevel@tonic-gate * Pipe used to send events from the threads created by restarter_bind_handle() 1847c478bd9Sstevel@tonic-gate * to the main thread of control. 1857c478bd9Sstevel@tonic-gate */ 1867c478bd9Sstevel@tonic-gate static int rst_event_pipe[] = {-1, -1}; 1877c478bd9Sstevel@tonic-gate /* 1887c478bd9Sstevel@tonic-gate * Used to protect the critical section of code in restarter_event_proxy() that 1897c478bd9Sstevel@tonic-gate * involves writing an event down the event pipe and reading an acknowledgement. 1907c478bd9Sstevel@tonic-gate */ 1917c478bd9Sstevel@tonic-gate static pthread_mutex_t rst_event_pipe_mtx = PTHREAD_MUTEX_INITIALIZER; 1927c478bd9Sstevel@tonic-gate 1937c478bd9Sstevel@tonic-gate /* handle used in communication with the master restarter */ 1947c478bd9Sstevel@tonic-gate static restarter_event_handle_t *rst_event_handle = NULL; 1957c478bd9Sstevel@tonic-gate 1967c478bd9Sstevel@tonic-gate /* set to indicate a refresh of inetd is requested */ 1977c478bd9Sstevel@tonic-gate static boolean_t refresh_inetd_requested = B_FALSE; 1987c478bd9Sstevel@tonic-gate 1997c478bd9Sstevel@tonic-gate /* set by the SIGTERM handler to flag we got a SIGTERM */ 2007c478bd9Sstevel@tonic-gate static boolean_t got_sigterm = B_FALSE; 2017c478bd9Sstevel@tonic-gate 2027c478bd9Sstevel@tonic-gate /* 2037c478bd9Sstevel@tonic-gate * Timer queue used to store timers for delayed event processing, such as 2047c478bd9Sstevel@tonic-gate * bind retries. 2057c478bd9Sstevel@tonic-gate */ 2067c478bd9Sstevel@tonic-gate iu_tq_t *timer_queue = NULL; 2077c478bd9Sstevel@tonic-gate 2087c478bd9Sstevel@tonic-gate /* 2097c478bd9Sstevel@tonic-gate * fd of Unix Domain socket used to communicate stop and refresh requests 2107c478bd9Sstevel@tonic-gate * to the inetd start method process. 2117c478bd9Sstevel@tonic-gate */ 2127c478bd9Sstevel@tonic-gate static int uds_fd = -1; 2137c478bd9Sstevel@tonic-gate 2147c478bd9Sstevel@tonic-gate /* 2157c478bd9Sstevel@tonic-gate * List of inetd's currently managed instances; each containing its state, 2167c478bd9Sstevel@tonic-gate * and in certain states its configuration. 2177c478bd9Sstevel@tonic-gate */ 2187c478bd9Sstevel@tonic-gate static uu_list_pool_t *instance_pool = NULL; 2197c478bd9Sstevel@tonic-gate uu_list_t *instance_list = NULL; 2207c478bd9Sstevel@tonic-gate 2217c478bd9Sstevel@tonic-gate /* set to indicate we're being stopped */ 2227c478bd9Sstevel@tonic-gate boolean_t inetd_stopping = B_FALSE; 2237c478bd9Sstevel@tonic-gate 2247c478bd9Sstevel@tonic-gate /* TCP wrappers syslog globals. Consumed by libwrap. */ 2257c478bd9Sstevel@tonic-gate int allow_severity = LOG_INFO; 2267c478bd9Sstevel@tonic-gate int deny_severity = LOG_WARNING; 2277c478bd9Sstevel@tonic-gate 2287c478bd9Sstevel@tonic-gate /* path of the configuration file being monitored by check_conf_file() */ 2297c478bd9Sstevel@tonic-gate static char *conf_file = NULL; 2307c478bd9Sstevel@tonic-gate 2317c478bd9Sstevel@tonic-gate /* Auditing session handle */ 2327c478bd9Sstevel@tonic-gate static adt_session_data_t *audit_handle; 2337c478bd9Sstevel@tonic-gate 2347c478bd9Sstevel@tonic-gate static void uds_fini(void); 2357c478bd9Sstevel@tonic-gate static int uds_init(void); 2367c478bd9Sstevel@tonic-gate static int run_method(instance_t *, instance_method_t, const proto_info_t *); 2377c478bd9Sstevel@tonic-gate static void create_bound_fds(instance_t *); 2387c478bd9Sstevel@tonic-gate static void destroy_bound_fds(instance_t *); 2397c478bd9Sstevel@tonic-gate static void destroy_instance(instance_t *); 2407c478bd9Sstevel@tonic-gate static void inetd_stop(void); 241b823d4c7Sdstaff static void 242b823d4c7Sdstaff exec_method(instance_t *instance, instance_method_t method, method_info_t *mi, 243b823d4c7Sdstaff struct method_context *mthd_ctxt, const proto_info_t *pi) __NORETURN; 2447c478bd9Sstevel@tonic-gate 2457c478bd9Sstevel@tonic-gate /* 2467c478bd9Sstevel@tonic-gate * The following two functions are callbacks that libumem uses to determine 2477c478bd9Sstevel@tonic-gate * inetd's desired debugging/logging levels. The interface they consume is 2487c478bd9Sstevel@tonic-gate * exported by FMA and is consolidation private. The comments in the two 2497c478bd9Sstevel@tonic-gate * functions give the environment variable that will effectively be set to 2507c478bd9Sstevel@tonic-gate * their returned value, and thus whose behavior for this value, described in 2517c478bd9Sstevel@tonic-gate * umem_debug(3MALLOC), will be followed. 2527c478bd9Sstevel@tonic-gate */ 2537c478bd9Sstevel@tonic-gate 2547c478bd9Sstevel@tonic-gate const char * 2557c478bd9Sstevel@tonic-gate _umem_debug_init(void) 2567c478bd9Sstevel@tonic-gate { 2577c478bd9Sstevel@tonic-gate return ("default,verbose"); /* UMEM_DEBUG setting */ 2587c478bd9Sstevel@tonic-gate } 2597c478bd9Sstevel@tonic-gate 2607c478bd9Sstevel@tonic-gate const char * 2617c478bd9Sstevel@tonic-gate _umem_logging_init(void) 2627c478bd9Sstevel@tonic-gate { 2637c478bd9Sstevel@tonic-gate return ("fail,contents"); /* UMEM_LOGGING setting */ 2647c478bd9Sstevel@tonic-gate } 2657c478bd9Sstevel@tonic-gate 2667c478bd9Sstevel@tonic-gate static void 2677c478bd9Sstevel@tonic-gate log_invalid_cfg(const char *fmri) 2687c478bd9Sstevel@tonic-gate { 2697c478bd9Sstevel@tonic-gate error_msg(gettext( 2707c478bd9Sstevel@tonic-gate "Invalid configuration for instance %s, placing in maintenance"), 2717c478bd9Sstevel@tonic-gate fmri); 2727c478bd9Sstevel@tonic-gate } 2737c478bd9Sstevel@tonic-gate 2747c478bd9Sstevel@tonic-gate /* 2757c478bd9Sstevel@tonic-gate * Returns B_TRUE if the instance is in a suitable state for inetd to stop. 2767c478bd9Sstevel@tonic-gate */ 2777c478bd9Sstevel@tonic-gate static boolean_t 2787c478bd9Sstevel@tonic-gate instance_stopped(const instance_t *inst) 2797c478bd9Sstevel@tonic-gate { 2807c478bd9Sstevel@tonic-gate return ((inst->cur_istate == IIS_OFFLINE) || 2817c478bd9Sstevel@tonic-gate (inst->cur_istate == IIS_MAINTENANCE) || 2827c478bd9Sstevel@tonic-gate (inst->cur_istate == IIS_DISABLED) || 2837c478bd9Sstevel@tonic-gate (inst->cur_istate == IIS_UNINITIALIZED)); 2847c478bd9Sstevel@tonic-gate } 2857c478bd9Sstevel@tonic-gate 2867c478bd9Sstevel@tonic-gate /* 2877c478bd9Sstevel@tonic-gate * Updates the current and next repository states of instance 'inst'. If 2887c478bd9Sstevel@tonic-gate * any errors occur an error message is output. 2897c478bd9Sstevel@tonic-gate */ 2907c478bd9Sstevel@tonic-gate static void 2917c478bd9Sstevel@tonic-gate update_instance_states(instance_t *inst, internal_inst_state_t new_cur_state, 2927c478bd9Sstevel@tonic-gate internal_inst_state_t new_next_state, restarter_error_t err) 2937c478bd9Sstevel@tonic-gate { 2947c478bd9Sstevel@tonic-gate internal_inst_state_t old_cur = inst->cur_istate; 2957c478bd9Sstevel@tonic-gate internal_inst_state_t old_next = inst->next_istate; 2967c478bd9Sstevel@tonic-gate scf_error_t sret; 2977c478bd9Sstevel@tonic-gate int ret; 2987c478bd9Sstevel@tonic-gate 2997c478bd9Sstevel@tonic-gate debug_msg("Entering update_instance_states: oldcur: %s, newcur: %s " 3007c478bd9Sstevel@tonic-gate "oldnext: %s, newnext: %s", states[old_cur].name, 3017c478bd9Sstevel@tonic-gate states[new_cur_state].name, states[old_next].name, 3027c478bd9Sstevel@tonic-gate states[new_next_state].name); 3037c478bd9Sstevel@tonic-gate 3047c478bd9Sstevel@tonic-gate 3057c478bd9Sstevel@tonic-gate /* update the repository/cached internal state */ 3067c478bd9Sstevel@tonic-gate inst->cur_istate = new_cur_state; 3077c478bd9Sstevel@tonic-gate inst->next_istate = new_next_state; 3087c478bd9Sstevel@tonic-gate (void) set_single_rep_val(inst->cur_istate_rep, 3097c478bd9Sstevel@tonic-gate (int64_t)new_cur_state); 3107c478bd9Sstevel@tonic-gate (void) set_single_rep_val(inst->next_istate_rep, 3117c478bd9Sstevel@tonic-gate (int64_t)new_next_state); 3127c478bd9Sstevel@tonic-gate 3137c478bd9Sstevel@tonic-gate if (((sret = store_rep_vals(inst->cur_istate_rep, inst->fmri, 3147c478bd9Sstevel@tonic-gate PR_NAME_CUR_INT_STATE)) != 0) || 3157c478bd9Sstevel@tonic-gate ((sret = store_rep_vals(inst->next_istate_rep, inst->fmri, 3167c478bd9Sstevel@tonic-gate PR_NAME_NEXT_INT_STATE)) != 0)) 3177c478bd9Sstevel@tonic-gate error_msg(gettext("Failed to update state of instance %s in " 3187c478bd9Sstevel@tonic-gate "repository: %s"), inst->fmri, scf_strerror(sret)); 3197c478bd9Sstevel@tonic-gate 3207c478bd9Sstevel@tonic-gate /* update the repository SMF state */ 3217c478bd9Sstevel@tonic-gate if ((ret = restarter_set_states(rst_event_handle, inst->fmri, 3227c478bd9Sstevel@tonic-gate states[old_cur].smf_state, states[new_cur_state].smf_state, 3237c478bd9Sstevel@tonic-gate states[old_next].smf_state, states[new_next_state].smf_state, 3247c478bd9Sstevel@tonic-gate err, 0)) != 0) 3257c478bd9Sstevel@tonic-gate error_msg(gettext("Failed to update state of instance %s in " 3267c478bd9Sstevel@tonic-gate "repository: %s"), inst->fmri, strerror(ret)); 3277c478bd9Sstevel@tonic-gate 3287c478bd9Sstevel@tonic-gate } 3297c478bd9Sstevel@tonic-gate 3307c478bd9Sstevel@tonic-gate void 3317c478bd9Sstevel@tonic-gate update_state(instance_t *inst, internal_inst_state_t new_cur, 3327c478bd9Sstevel@tonic-gate restarter_error_t err) 3337c478bd9Sstevel@tonic-gate { 3347c478bd9Sstevel@tonic-gate update_instance_states(inst, new_cur, IIS_NONE, err); 3357c478bd9Sstevel@tonic-gate } 3367c478bd9Sstevel@tonic-gate 3377c478bd9Sstevel@tonic-gate /* 3387c478bd9Sstevel@tonic-gate * Sends a refresh event to the inetd start method process and returns 3397c478bd9Sstevel@tonic-gate * SMF_EXIT_OK if it managed to send it. If it fails to send the request for 3407c478bd9Sstevel@tonic-gate * some reason it returns SMF_EXIT_ERR_OTHER. 3417c478bd9Sstevel@tonic-gate */ 3427c478bd9Sstevel@tonic-gate static int 3437c478bd9Sstevel@tonic-gate refresh_method(void) 3447c478bd9Sstevel@tonic-gate { 3457c478bd9Sstevel@tonic-gate uds_request_t req = UR_REFRESH_INETD; 3467c478bd9Sstevel@tonic-gate int fd; 3477c478bd9Sstevel@tonic-gate 3487c478bd9Sstevel@tonic-gate debug_msg("Entering refresh_method"); 3497c478bd9Sstevel@tonic-gate 3507c478bd9Sstevel@tonic-gate if ((fd = connect_to_inetd()) < 0) { 3517c478bd9Sstevel@tonic-gate error_msg(gettext("Failed to connect to inetd: %s"), 3527c478bd9Sstevel@tonic-gate strerror(errno)); 3537c478bd9Sstevel@tonic-gate return (SMF_EXIT_ERR_OTHER); 3547c478bd9Sstevel@tonic-gate } 3557c478bd9Sstevel@tonic-gate 3567c478bd9Sstevel@tonic-gate /* write the request and return success */ 3577c478bd9Sstevel@tonic-gate if (safe_write(fd, &req, sizeof (req)) == -1) { 3587c478bd9Sstevel@tonic-gate error_msg( 3597c478bd9Sstevel@tonic-gate gettext("Failed to send refresh request to inetd: %s"), 3607c478bd9Sstevel@tonic-gate strerror(errno)); 3617c478bd9Sstevel@tonic-gate (void) close(fd); 3627c478bd9Sstevel@tonic-gate return (SMF_EXIT_ERR_OTHER); 3637c478bd9Sstevel@tonic-gate } 3647c478bd9Sstevel@tonic-gate 3657c478bd9Sstevel@tonic-gate (void) close(fd); 3667c478bd9Sstevel@tonic-gate 3677c478bd9Sstevel@tonic-gate return (SMF_EXIT_OK); 3687c478bd9Sstevel@tonic-gate } 3697c478bd9Sstevel@tonic-gate 3707c478bd9Sstevel@tonic-gate /* 3717c478bd9Sstevel@tonic-gate * Sends a stop event to the inetd start method process and wait till it goes 3727c478bd9Sstevel@tonic-gate * away. If inetd is determined to have stopped SMF_EXIT_OK is returned, else 3737c478bd9Sstevel@tonic-gate * SMF_EXIT_ERR_OTHER is returned. 3747c478bd9Sstevel@tonic-gate */ 3757c478bd9Sstevel@tonic-gate static int 3767c478bd9Sstevel@tonic-gate stop_method(void) 3777c478bd9Sstevel@tonic-gate { 3787c478bd9Sstevel@tonic-gate uds_request_t req = UR_STOP_INETD; 3797c478bd9Sstevel@tonic-gate int fd; 3807c478bd9Sstevel@tonic-gate char c; 3817c478bd9Sstevel@tonic-gate ssize_t ret; 3827c478bd9Sstevel@tonic-gate 3837c478bd9Sstevel@tonic-gate debug_msg("Entering stop_method"); 3847c478bd9Sstevel@tonic-gate 3857c478bd9Sstevel@tonic-gate if ((fd = connect_to_inetd()) == -1) { 3867c478bd9Sstevel@tonic-gate debug_msg(gettext("Failed to connect to inetd: %s"), 3877c478bd9Sstevel@tonic-gate strerror(errno)); 3887c478bd9Sstevel@tonic-gate /* 3897c478bd9Sstevel@tonic-gate * Assume connect_to_inetd() failed because inetd was already 3907c478bd9Sstevel@tonic-gate * stopped, and return success. 3917c478bd9Sstevel@tonic-gate */ 3927c478bd9Sstevel@tonic-gate return (SMF_EXIT_OK); 3937c478bd9Sstevel@tonic-gate } 3947c478bd9Sstevel@tonic-gate 3957c478bd9Sstevel@tonic-gate /* 3967c478bd9Sstevel@tonic-gate * This is safe to do since we're fired off in a separate process 3977c478bd9Sstevel@tonic-gate * than inetd and in the case we get wedged, the stop method timeout 3987c478bd9Sstevel@tonic-gate * will occur and we'd be killed by our restarter. 3997c478bd9Sstevel@tonic-gate */ 4007c478bd9Sstevel@tonic-gate enable_blocking(fd); 4017c478bd9Sstevel@tonic-gate 4027c478bd9Sstevel@tonic-gate /* write the stop request to inetd and wait till it goes away */ 4037c478bd9Sstevel@tonic-gate if (safe_write(fd, &req, sizeof (req)) != 0) { 4047c478bd9Sstevel@tonic-gate error_msg(gettext("Failed to send stop request to inetd")); 4057c478bd9Sstevel@tonic-gate (void) close(fd); 4067c478bd9Sstevel@tonic-gate return (SMF_EXIT_ERR_OTHER); 4077c478bd9Sstevel@tonic-gate } 4087c478bd9Sstevel@tonic-gate 4097c478bd9Sstevel@tonic-gate /* wait until remote end of socket is closed */ 4107c478bd9Sstevel@tonic-gate while (((ret = recv(fd, &c, sizeof (c), 0)) != 0) && (errno == EINTR)) 4117c478bd9Sstevel@tonic-gate ; 4127c478bd9Sstevel@tonic-gate 4137c478bd9Sstevel@tonic-gate (void) close(fd); 4147c478bd9Sstevel@tonic-gate 4157c478bd9Sstevel@tonic-gate if (ret != 0) { 4167c478bd9Sstevel@tonic-gate error_msg(gettext("Failed to determine whether inetd stopped")); 4177c478bd9Sstevel@tonic-gate return (SMF_EXIT_ERR_OTHER); 4187c478bd9Sstevel@tonic-gate } 4197c478bd9Sstevel@tonic-gate 4207c478bd9Sstevel@tonic-gate return (SMF_EXIT_OK); 4217c478bd9Sstevel@tonic-gate } 4227c478bd9Sstevel@tonic-gate 4237c478bd9Sstevel@tonic-gate 4247c478bd9Sstevel@tonic-gate /* 4257c478bd9Sstevel@tonic-gate * This function is called to handle restarter events coming in from the 4267c478bd9Sstevel@tonic-gate * master restarter. It is registered with the master restarter via 4277c478bd9Sstevel@tonic-gate * restarter_bind_handle() and simply passes a pointer to the event down 4287c478bd9Sstevel@tonic-gate * the event pipe, which will be discovered by the poll in the event loop 4297c478bd9Sstevel@tonic-gate * and processed there. It waits for an acknowledgement to be written back down 4307c478bd9Sstevel@tonic-gate * the pipe before returning. 4317c478bd9Sstevel@tonic-gate * Writing a pointer to the function's 'event' parameter down the pipe will 4327c478bd9Sstevel@tonic-gate * be safe, as the thread in restarter_event_proxy() doesn't return until 4337c478bd9Sstevel@tonic-gate * the main thread has finished its processing of the passed event, thus 4347c478bd9Sstevel@tonic-gate * the referenced event will remain around until the function returns. 4357c478bd9Sstevel@tonic-gate * To impose the limit of only one event being in the pipe and processed 4367c478bd9Sstevel@tonic-gate * at once, a lock is taken on entry to this function and returned on exit. 4377c478bd9Sstevel@tonic-gate * Always returns 0. 4387c478bd9Sstevel@tonic-gate */ 4397c478bd9Sstevel@tonic-gate static int 4407c478bd9Sstevel@tonic-gate restarter_event_proxy(restarter_event_t *event) 4417c478bd9Sstevel@tonic-gate { 4427c478bd9Sstevel@tonic-gate restarter_event_type_t ev_type; 4437c478bd9Sstevel@tonic-gate boolean_t processed; 4447c478bd9Sstevel@tonic-gate 4457c478bd9Sstevel@tonic-gate debug_msg("Entering restarter_event_proxy"); 4467c478bd9Sstevel@tonic-gate ev_type = restarter_event_get_type(event); 4477c478bd9Sstevel@tonic-gate debug_msg("event: %x, event type: %d", event, ev_type); 4487c478bd9Sstevel@tonic-gate 4497c478bd9Sstevel@tonic-gate (void) pthread_mutex_lock(&rst_event_pipe_mtx); 4507c478bd9Sstevel@tonic-gate 4517c478bd9Sstevel@tonic-gate /* write the event to the main worker thread down the pipe */ 4527c478bd9Sstevel@tonic-gate if (safe_write(rst_event_pipe[PE_PRODUCER], &event, 4537c478bd9Sstevel@tonic-gate sizeof (event)) != 0) 4547c478bd9Sstevel@tonic-gate goto pipe_error; 4557c478bd9Sstevel@tonic-gate 4567c478bd9Sstevel@tonic-gate /* 4577c478bd9Sstevel@tonic-gate * Wait for an acknowledgement that the event has been processed from 4587c478bd9Sstevel@tonic-gate * the same pipe. In the case that inetd is stopping, any thread in 4597c478bd9Sstevel@tonic-gate * this function will simply block on this read until inetd eventually 4607c478bd9Sstevel@tonic-gate * exits. This will result in this function not returning success to 4617c478bd9Sstevel@tonic-gate * its caller, and the event that was being processed when the 4627c478bd9Sstevel@tonic-gate * function exited will be re-sent when inetd is next started. 4637c478bd9Sstevel@tonic-gate */ 4647c478bd9Sstevel@tonic-gate if (safe_read(rst_event_pipe[PE_PRODUCER], &processed, 4657c478bd9Sstevel@tonic-gate sizeof (processed)) != 0) 4667c478bd9Sstevel@tonic-gate goto pipe_error; 4677c478bd9Sstevel@tonic-gate 4687c478bd9Sstevel@tonic-gate (void) pthread_mutex_unlock(&rst_event_pipe_mtx); 4697c478bd9Sstevel@tonic-gate 4707c478bd9Sstevel@tonic-gate return (processed ? 0 : EAGAIN); 4717c478bd9Sstevel@tonic-gate 4727c478bd9Sstevel@tonic-gate pipe_error: 4737c478bd9Sstevel@tonic-gate /* 4747c478bd9Sstevel@tonic-gate * Something's seriously wrong with the event pipe. Notify the 4757c478bd9Sstevel@tonic-gate * worker thread by closing this end of the event pipe and pause till 4767c478bd9Sstevel@tonic-gate * inetd exits. 4777c478bd9Sstevel@tonic-gate */ 4787c478bd9Sstevel@tonic-gate error_msg(gettext("Can't process restarter events: %s"), 4797c478bd9Sstevel@tonic-gate strerror(errno)); 4807c478bd9Sstevel@tonic-gate (void) close(rst_event_pipe[PE_PRODUCER]); 4817c478bd9Sstevel@tonic-gate for (;;) 4827c478bd9Sstevel@tonic-gate (void) pause(); 4837c478bd9Sstevel@tonic-gate 4847c478bd9Sstevel@tonic-gate /* NOTREACHED */ 4857c478bd9Sstevel@tonic-gate } 4867c478bd9Sstevel@tonic-gate 4877c478bd9Sstevel@tonic-gate /* 4887c478bd9Sstevel@tonic-gate * Let restarter_event_proxy() know we're finished with the event it's blocked 4897c478bd9Sstevel@tonic-gate * upon. The 'processed' argument denotes whether we successfully processed the 4907c478bd9Sstevel@tonic-gate * event. 4917c478bd9Sstevel@tonic-gate */ 4927c478bd9Sstevel@tonic-gate static void 4937c478bd9Sstevel@tonic-gate ack_restarter_event(boolean_t processed) 4947c478bd9Sstevel@tonic-gate { 4957c478bd9Sstevel@tonic-gate debug_msg("Entering ack_restarter_event"); 4967c478bd9Sstevel@tonic-gate 4977c478bd9Sstevel@tonic-gate /* 4987c478bd9Sstevel@tonic-gate * If safe_write returns -1 something's seriously wrong with the event 4997c478bd9Sstevel@tonic-gate * pipe, so start the shutdown proceedings. 5007c478bd9Sstevel@tonic-gate */ 5017c478bd9Sstevel@tonic-gate if (safe_write(rst_event_pipe[PE_CONSUMER], &processed, 5027c478bd9Sstevel@tonic-gate sizeof (processed)) == -1) 5037c478bd9Sstevel@tonic-gate inetd_stop(); 5047c478bd9Sstevel@tonic-gate } 5057c478bd9Sstevel@tonic-gate 5067c478bd9Sstevel@tonic-gate /* 5077c478bd9Sstevel@tonic-gate * Switch the syslog identification string to 'ident'. 5087c478bd9Sstevel@tonic-gate */ 5097c478bd9Sstevel@tonic-gate static void 5107c478bd9Sstevel@tonic-gate change_syslog_ident(const char *ident) 5117c478bd9Sstevel@tonic-gate { 5127c478bd9Sstevel@tonic-gate debug_msg("Entering change_syslog_ident: ident: %s", ident); 5137c478bd9Sstevel@tonic-gate 5147c478bd9Sstevel@tonic-gate closelog(); 5157c478bd9Sstevel@tonic-gate openlog(ident, LOG_PID|LOG_CONS, LOG_DAEMON); 5167c478bd9Sstevel@tonic-gate } 5177c478bd9Sstevel@tonic-gate 5187c478bd9Sstevel@tonic-gate /* 5197c478bd9Sstevel@tonic-gate * Perform TCP wrappers checks on this instance. Due to the fact that the 5207c478bd9Sstevel@tonic-gate * current wrappers code used in Solaris is taken untouched from the open 5217c478bd9Sstevel@tonic-gate * source version, we're stuck with using the daemon name for the checks, as 5227c478bd9Sstevel@tonic-gate * opposed to making use of instance FMRIs. Sigh. 5237c478bd9Sstevel@tonic-gate * Returns B_TRUE if the check passed, else B_FALSE. 5247c478bd9Sstevel@tonic-gate */ 5257c478bd9Sstevel@tonic-gate static boolean_t 5267c478bd9Sstevel@tonic-gate tcp_wrappers_ok(instance_t *instance) 5277c478bd9Sstevel@tonic-gate { 5287c478bd9Sstevel@tonic-gate boolean_t rval = B_TRUE; 5297c478bd9Sstevel@tonic-gate char *daemon_name; 5307c478bd9Sstevel@tonic-gate basic_cfg_t *cfg = instance->config->basic; 5317c478bd9Sstevel@tonic-gate struct request_info req; 5327c478bd9Sstevel@tonic-gate 5337c478bd9Sstevel@tonic-gate debug_msg("Entering tcp_wrappers_ok, instance: %s", instance->fmri); 5347c478bd9Sstevel@tonic-gate 5357c478bd9Sstevel@tonic-gate /* 5367c478bd9Sstevel@tonic-gate * Wrap the service using libwrap functions. The code below implements 5377c478bd9Sstevel@tonic-gate * the functionality of tcpd. This is done only for stream,nowait 5387c478bd9Sstevel@tonic-gate * services, following the convention of other vendors. udp/dgram and 5397c478bd9Sstevel@tonic-gate * stream/wait can NOT be wrapped with this libwrap, so be wary of 5407c478bd9Sstevel@tonic-gate * changing the test below. 5417c478bd9Sstevel@tonic-gate */ 5427c478bd9Sstevel@tonic-gate if (cfg->do_tcp_wrappers && !cfg->iswait && !cfg->istlx) { 5437c478bd9Sstevel@tonic-gate 5447c478bd9Sstevel@tonic-gate daemon_name = instance->config->methods[ 5457c478bd9Sstevel@tonic-gate IM_START]->exec_args_we.we_wordv[0]; 5467c478bd9Sstevel@tonic-gate if (*daemon_name == '/') 5477c478bd9Sstevel@tonic-gate daemon_name = strrchr(daemon_name, '/') + 1; 5487c478bd9Sstevel@tonic-gate 5497c478bd9Sstevel@tonic-gate /* 5507c478bd9Sstevel@tonic-gate * Change the syslog message identity to the name of the 5517c478bd9Sstevel@tonic-gate * daemon being wrapped, as opposed to "inetd". 5527c478bd9Sstevel@tonic-gate */ 5537c478bd9Sstevel@tonic-gate change_syslog_ident(daemon_name); 5547c478bd9Sstevel@tonic-gate 5557c478bd9Sstevel@tonic-gate (void) request_init(&req, RQ_DAEMON, daemon_name, RQ_FILE, 5567c478bd9Sstevel@tonic-gate instance->conn_fd, NULL); 5577c478bd9Sstevel@tonic-gate fromhost(&req); 5587c478bd9Sstevel@tonic-gate 5597c478bd9Sstevel@tonic-gate if (strcasecmp(eval_hostname(req.client), paranoid) == 0) { 5607c478bd9Sstevel@tonic-gate syslog(deny_severity, 5617c478bd9Sstevel@tonic-gate "refused connect from %s (name/address mismatch)", 5627c478bd9Sstevel@tonic-gate eval_client(&req)); 5637c478bd9Sstevel@tonic-gate if (req.sink != NULL) 5647c478bd9Sstevel@tonic-gate req.sink(instance->conn_fd); 5657c478bd9Sstevel@tonic-gate rval = B_FALSE; 5667c478bd9Sstevel@tonic-gate } else if (!hosts_access(&req)) { 5677c478bd9Sstevel@tonic-gate syslog(deny_severity, 5687c478bd9Sstevel@tonic-gate "refused connect from %s (access denied)", 5697c478bd9Sstevel@tonic-gate eval_client(&req)); 5707c478bd9Sstevel@tonic-gate if (req.sink != NULL) 5717c478bd9Sstevel@tonic-gate req.sink(instance->conn_fd); 5727c478bd9Sstevel@tonic-gate rval = B_FALSE; 5737c478bd9Sstevel@tonic-gate } else { 5747c478bd9Sstevel@tonic-gate syslog(allow_severity, "connect from %s", 5757c478bd9Sstevel@tonic-gate eval_client(&req)); 5767c478bd9Sstevel@tonic-gate } 5777c478bd9Sstevel@tonic-gate 5787c478bd9Sstevel@tonic-gate /* Revert syslog identity back to "inetd". */ 5797c478bd9Sstevel@tonic-gate change_syslog_ident(SYSLOG_IDENT); 5807c478bd9Sstevel@tonic-gate } 5817c478bd9Sstevel@tonic-gate return (rval); 5827c478bd9Sstevel@tonic-gate } 5837c478bd9Sstevel@tonic-gate 5847c478bd9Sstevel@tonic-gate /* 5857c478bd9Sstevel@tonic-gate * Handler registered with the timer queue code to remove an instance from 5867c478bd9Sstevel@tonic-gate * the connection rate offline state when it has been there for its allotted 5877c478bd9Sstevel@tonic-gate * time. 5887c478bd9Sstevel@tonic-gate */ 5897c478bd9Sstevel@tonic-gate /* ARGSUSED */ 5907c478bd9Sstevel@tonic-gate static void 5917c478bd9Sstevel@tonic-gate conn_rate_online(iu_tq_t *tq, void *arg) 5927c478bd9Sstevel@tonic-gate { 5937c478bd9Sstevel@tonic-gate instance_t *instance = arg; 5947c478bd9Sstevel@tonic-gate 5957c478bd9Sstevel@tonic-gate debug_msg("Entering conn_rate_online, instance: %s", 5967c478bd9Sstevel@tonic-gate instance->fmri); 5977c478bd9Sstevel@tonic-gate 5987c478bd9Sstevel@tonic-gate assert(instance->cur_istate == IIS_OFFLINE_CONRATE); 5997c478bd9Sstevel@tonic-gate instance->timer_id = -1; 6007c478bd9Sstevel@tonic-gate update_state(instance, IIS_OFFLINE, RERR_RESTART); 6017c478bd9Sstevel@tonic-gate process_offline_inst(instance); 6027c478bd9Sstevel@tonic-gate } 6037c478bd9Sstevel@tonic-gate 6047c478bd9Sstevel@tonic-gate /* 6057c478bd9Sstevel@tonic-gate * Check whether this instance in the offline state is in transition to 6067c478bd9Sstevel@tonic-gate * another state and do the work to continue this transition. 6077c478bd9Sstevel@tonic-gate */ 6087c478bd9Sstevel@tonic-gate void 6097c478bd9Sstevel@tonic-gate process_offline_inst(instance_t *inst) 6107c478bd9Sstevel@tonic-gate { 6117c478bd9Sstevel@tonic-gate debug_msg("Entering process_offline_inst"); 6127c478bd9Sstevel@tonic-gate 6137c478bd9Sstevel@tonic-gate if (inst->disable_req) { 6147c478bd9Sstevel@tonic-gate inst->disable_req = B_FALSE; 6157c478bd9Sstevel@tonic-gate (void) run_method(inst, IM_DISABLE, NULL); 6167c478bd9Sstevel@tonic-gate } else if (inst->maintenance_req) { 6177c478bd9Sstevel@tonic-gate inst->maintenance_req = B_FALSE; 6187c478bd9Sstevel@tonic-gate update_state(inst, IIS_MAINTENANCE, RERR_RESTART); 6197c478bd9Sstevel@tonic-gate /* 6207c478bd9Sstevel@tonic-gate * If inetd is in the process of stopping, we don't want to enter 6217c478bd9Sstevel@tonic-gate * any states but offline, disabled and maintenance. 6227c478bd9Sstevel@tonic-gate */ 6237c478bd9Sstevel@tonic-gate } else if (!inetd_stopping) { 6247c478bd9Sstevel@tonic-gate if (inst->conn_rate_exceeded) { 6257c478bd9Sstevel@tonic-gate basic_cfg_t *cfg = inst->config->basic; 6267c478bd9Sstevel@tonic-gate 6277c478bd9Sstevel@tonic-gate inst->conn_rate_exceeded = B_FALSE; 6287c478bd9Sstevel@tonic-gate update_state(inst, IIS_OFFLINE_CONRATE, RERR_RESTART); 6297c478bd9Sstevel@tonic-gate /* 6307c478bd9Sstevel@tonic-gate * Schedule a timer to bring the instance out of the 6317c478bd9Sstevel@tonic-gate * connection rate offline state. 6327c478bd9Sstevel@tonic-gate */ 6337c478bd9Sstevel@tonic-gate inst->timer_id = iu_schedule_timer(timer_queue, 6347c478bd9Sstevel@tonic-gate cfg->conn_rate_offline, conn_rate_online, 6357c478bd9Sstevel@tonic-gate inst); 6367c478bd9Sstevel@tonic-gate if (inst->timer_id == -1) { 6377c478bd9Sstevel@tonic-gate error_msg(gettext("%s unable to set timer, " 6387c478bd9Sstevel@tonic-gate "won't be brought on line after %d " 6397c478bd9Sstevel@tonic-gate "seconds."), inst->fmri, 6407c478bd9Sstevel@tonic-gate cfg->conn_rate_offline); 6417c478bd9Sstevel@tonic-gate } 6427c478bd9Sstevel@tonic-gate 6437c478bd9Sstevel@tonic-gate } else if (copies_limit_exceeded(inst)) { 6447c478bd9Sstevel@tonic-gate update_state(inst, IIS_OFFLINE_COPIES, RERR_RESTART); 6457c478bd9Sstevel@tonic-gate } 6467c478bd9Sstevel@tonic-gate } 6477c478bd9Sstevel@tonic-gate } 6487c478bd9Sstevel@tonic-gate 6497c478bd9Sstevel@tonic-gate /* 6507c478bd9Sstevel@tonic-gate * Create a socket bound to the instance's configured address. If the 6517c478bd9Sstevel@tonic-gate * bind fails, returns -1, else the fd of the bound socket. 6527c478bd9Sstevel@tonic-gate */ 6537c478bd9Sstevel@tonic-gate static int 654*fff9db26Svp create_bound_socket(const instance_t *inst, socket_info_t *sock_info) 6557c478bd9Sstevel@tonic-gate { 6567c478bd9Sstevel@tonic-gate int fd; 6577c478bd9Sstevel@tonic-gate int on = 1; 658*fff9db26Svp const char *fmri = inst->fmri; 6597c478bd9Sstevel@tonic-gate rpc_info_t *rpc = sock_info->pr_info.ri; 6607c478bd9Sstevel@tonic-gate const char *proto = sock_info->pr_info.proto; 6617c478bd9Sstevel@tonic-gate 6627c478bd9Sstevel@tonic-gate debug_msg("Entering create_bound_socket"); 6637c478bd9Sstevel@tonic-gate 6647c478bd9Sstevel@tonic-gate fd = socket(sock_info->local_addr.ss_family, sock_info->type, 6657c478bd9Sstevel@tonic-gate sock_info->protocol); 6667c478bd9Sstevel@tonic-gate if (fd < 0) { 6677c478bd9Sstevel@tonic-gate error_msg(gettext( 6687c478bd9Sstevel@tonic-gate "Socket creation failure for instance %s, proto %s: %s"), 6697c478bd9Sstevel@tonic-gate fmri, proto, strerror(errno)); 6707c478bd9Sstevel@tonic-gate return (-1); 6717c478bd9Sstevel@tonic-gate } 6727c478bd9Sstevel@tonic-gate 6737c478bd9Sstevel@tonic-gate if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &on, sizeof (on)) == -1) { 6747c478bd9Sstevel@tonic-gate error_msg(gettext("setsockopt SO_REUSEADDR failed for service " 6757c478bd9Sstevel@tonic-gate "instance %s, proto %s: %s"), fmri, proto, strerror(errno)); 6767c478bd9Sstevel@tonic-gate (void) close(fd); 6777c478bd9Sstevel@tonic-gate return (-1); 6787c478bd9Sstevel@tonic-gate } 6797c478bd9Sstevel@tonic-gate if (sock_info->pr_info.v6only) { 6807c478bd9Sstevel@tonic-gate /* restrict socket to IPv6 communications only */ 6817c478bd9Sstevel@tonic-gate if (setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY, &on, 6827c478bd9Sstevel@tonic-gate sizeof (on)) == -1) { 6837c478bd9Sstevel@tonic-gate error_msg(gettext("setsockopt IPV6_V6ONLY failed for " 6847c478bd9Sstevel@tonic-gate "service instance %s, proto %s: %s"), fmri, proto, 6857c478bd9Sstevel@tonic-gate strerror(errno)); 6867c478bd9Sstevel@tonic-gate (void) close(fd); 6877c478bd9Sstevel@tonic-gate return (-1); 6887c478bd9Sstevel@tonic-gate } 6897c478bd9Sstevel@tonic-gate } 6907c478bd9Sstevel@tonic-gate 6917c478bd9Sstevel@tonic-gate if (rpc != NULL) 6927c478bd9Sstevel@tonic-gate SS_SETPORT(sock_info->local_addr, 0); 6937c478bd9Sstevel@tonic-gate 6947c478bd9Sstevel@tonic-gate if (bind(fd, (struct sockaddr *)&(sock_info->local_addr), 6957c478bd9Sstevel@tonic-gate SS_ADDRLEN(sock_info->local_addr)) < 0) { 6967c478bd9Sstevel@tonic-gate error_msg(gettext( 6977c478bd9Sstevel@tonic-gate "Failed to bind to the port of service instance %s, " 6987c478bd9Sstevel@tonic-gate "proto %s: %s"), fmri, proto, strerror(errno)); 6997c478bd9Sstevel@tonic-gate (void) close(fd); 7007c478bd9Sstevel@tonic-gate return (-1); 7017c478bd9Sstevel@tonic-gate } 7027c478bd9Sstevel@tonic-gate 7037c478bd9Sstevel@tonic-gate /* 7047c478bd9Sstevel@tonic-gate * Retrieve and store the address bound to for RPC services. 7057c478bd9Sstevel@tonic-gate */ 7067c478bd9Sstevel@tonic-gate if (rpc != NULL) { 7077c478bd9Sstevel@tonic-gate struct sockaddr_storage ss; 7087c478bd9Sstevel@tonic-gate int ss_size = sizeof (ss); 7097c478bd9Sstevel@tonic-gate 7107c478bd9Sstevel@tonic-gate if (getsockname(fd, (struct sockaddr *)&ss, &ss_size) < 0) { 7117c478bd9Sstevel@tonic-gate error_msg(gettext("Failed getsockname for instance %s, " 7127c478bd9Sstevel@tonic-gate "proto %s: %s"), fmri, proto, strerror(errno)); 7137c478bd9Sstevel@tonic-gate (void) close(fd); 7147c478bd9Sstevel@tonic-gate return (-1); 7157c478bd9Sstevel@tonic-gate } 7167c478bd9Sstevel@tonic-gate (void) memcpy(rpc->netbuf.buf, &ss, 7177c478bd9Sstevel@tonic-gate sizeof (struct sockaddr_storage)); 7187c478bd9Sstevel@tonic-gate rpc->netbuf.len = SS_ADDRLEN(ss); 7197c478bd9Sstevel@tonic-gate rpc->netbuf.maxlen = SS_ADDRLEN(ss); 7207c478bd9Sstevel@tonic-gate } 7217c478bd9Sstevel@tonic-gate 722*fff9db26Svp if (sock_info->type == SOCK_STREAM) { 723*fff9db26Svp int qlen = inst->config->basic->conn_backlog; 724*fff9db26Svp 725*fff9db26Svp debug_msg("Listening for service %s with backlog queue" 726*fff9db26Svp " size %d", fmri, qlen); 727*fff9db26Svp (void) listen(fd, qlen); 728*fff9db26Svp } 7297c478bd9Sstevel@tonic-gate 7307c478bd9Sstevel@tonic-gate return (fd); 7317c478bd9Sstevel@tonic-gate } 7327c478bd9Sstevel@tonic-gate 7337c478bd9Sstevel@tonic-gate /* 7347c478bd9Sstevel@tonic-gate * Handler registered with the timer queue code to retry the creation 7357c478bd9Sstevel@tonic-gate * of a bound fd. 7367c478bd9Sstevel@tonic-gate */ 7377c478bd9Sstevel@tonic-gate /* ARGSUSED */ 7387c478bd9Sstevel@tonic-gate static void 7397c478bd9Sstevel@tonic-gate retry_bind(iu_tq_t *tq, void *arg) 7407c478bd9Sstevel@tonic-gate { 7417c478bd9Sstevel@tonic-gate instance_t *instance = arg; 7427c478bd9Sstevel@tonic-gate 7437c478bd9Sstevel@tonic-gate debug_msg("Entering retry_bind, instance: %s", instance->fmri); 7447c478bd9Sstevel@tonic-gate 7457c478bd9Sstevel@tonic-gate switch (instance->cur_istate) { 7467c478bd9Sstevel@tonic-gate case IIS_OFFLINE_BIND: 7477c478bd9Sstevel@tonic-gate case IIS_ONLINE: 7487c478bd9Sstevel@tonic-gate case IIS_DEGRADED: 7497c478bd9Sstevel@tonic-gate case IIS_IN_ONLINE_METHOD: 7507c478bd9Sstevel@tonic-gate case IIS_IN_REFRESH_METHOD: 7517c478bd9Sstevel@tonic-gate break; 7527c478bd9Sstevel@tonic-gate default: 7537c478bd9Sstevel@tonic-gate #ifndef NDEBUG 7547c478bd9Sstevel@tonic-gate (void) fprintf(stderr, "%s:%d: Unknown instance state %d.\n", 7557c478bd9Sstevel@tonic-gate __FILE__, __LINE__, instance->cur_istate); 7567c478bd9Sstevel@tonic-gate #endif 7577c478bd9Sstevel@tonic-gate abort(); 7587c478bd9Sstevel@tonic-gate } 7597c478bd9Sstevel@tonic-gate 7607c478bd9Sstevel@tonic-gate instance->bind_timer_id = -1; 7617c478bd9Sstevel@tonic-gate create_bound_fds(instance); 7627c478bd9Sstevel@tonic-gate } 7637c478bd9Sstevel@tonic-gate 7647c478bd9Sstevel@tonic-gate /* 7657c478bd9Sstevel@tonic-gate * For each of the fds for the given instance that are bound, if 'listen' is 7667c478bd9Sstevel@tonic-gate * set add them to the poll set, else remove them from it. If any additions 7677c478bd9Sstevel@tonic-gate * fail, returns -1, else 0 on success. 7687c478bd9Sstevel@tonic-gate */ 7697c478bd9Sstevel@tonic-gate int 7707c478bd9Sstevel@tonic-gate poll_bound_fds(instance_t *instance, boolean_t listen) 7717c478bd9Sstevel@tonic-gate { 7727c478bd9Sstevel@tonic-gate basic_cfg_t *cfg = instance->config->basic; 7737c478bd9Sstevel@tonic-gate proto_info_t *pi; 7747c478bd9Sstevel@tonic-gate int ret = 0; 7757c478bd9Sstevel@tonic-gate 7767c478bd9Sstevel@tonic-gate debug_msg("Entering poll_bound_fds: instance: %s, on: %d", 7777c478bd9Sstevel@tonic-gate instance->fmri, listen); 7787c478bd9Sstevel@tonic-gate 7797c478bd9Sstevel@tonic-gate for (pi = uu_list_first(cfg->proto_list); pi != NULL; 7807c478bd9Sstevel@tonic-gate pi = uu_list_next(cfg->proto_list, pi)) { 7817c478bd9Sstevel@tonic-gate if (pi->listen_fd != -1) { /* fd bound */ 7827c478bd9Sstevel@tonic-gate if (!listen) { 7837c478bd9Sstevel@tonic-gate clear_pollfd(pi->listen_fd); 7847c478bd9Sstevel@tonic-gate } else if (set_pollfd(pi->listen_fd, POLLIN) == -1) { 7857c478bd9Sstevel@tonic-gate ret = -1; 7867c478bd9Sstevel@tonic-gate } 7877c478bd9Sstevel@tonic-gate } 7887c478bd9Sstevel@tonic-gate } 7897c478bd9Sstevel@tonic-gate 7907c478bd9Sstevel@tonic-gate return (ret); 7917c478bd9Sstevel@tonic-gate } 7927c478bd9Sstevel@tonic-gate 7937c478bd9Sstevel@tonic-gate /* 7947c478bd9Sstevel@tonic-gate * Handle the case were we either fail to create a bound fd or we fail 7957c478bd9Sstevel@tonic-gate * to add a bound fd to the poll set for the given instance. 7967c478bd9Sstevel@tonic-gate */ 7977c478bd9Sstevel@tonic-gate static void 7987c478bd9Sstevel@tonic-gate handle_bind_failure(instance_t *instance) 7997c478bd9Sstevel@tonic-gate { 8007c478bd9Sstevel@tonic-gate basic_cfg_t *cfg = instance->config->basic; 8017c478bd9Sstevel@tonic-gate 8027c478bd9Sstevel@tonic-gate debug_msg("Entering handle_bind_failure: instance: %s", instance); 8037c478bd9Sstevel@tonic-gate 8047c478bd9Sstevel@tonic-gate /* 8057c478bd9Sstevel@tonic-gate * We must be being called as a result of a failed poll_bound_fds() 8067c478bd9Sstevel@tonic-gate * as a bind retry is already scheduled. Just return and let it do 8077c478bd9Sstevel@tonic-gate * the work. 8087c478bd9Sstevel@tonic-gate */ 8097c478bd9Sstevel@tonic-gate if (instance->bind_timer_id != -1) 8107c478bd9Sstevel@tonic-gate return; 8117c478bd9Sstevel@tonic-gate 8127c478bd9Sstevel@tonic-gate /* 8137c478bd9Sstevel@tonic-gate * Check if the rebind retries limit is operative and if so, 8147c478bd9Sstevel@tonic-gate * if it has been reached. 8157c478bd9Sstevel@tonic-gate */ 8167c478bd9Sstevel@tonic-gate if (((cfg->bind_fail_interval <= 0) || /* no retries */ 8177c478bd9Sstevel@tonic-gate ((cfg->bind_fail_max >= 0) && /* limit reached */ 8187c478bd9Sstevel@tonic-gate (++instance->bind_fail_count > cfg->bind_fail_max))) || 8197c478bd9Sstevel@tonic-gate ((instance->bind_timer_id = iu_schedule_timer(timer_queue, 8207c478bd9Sstevel@tonic-gate cfg->bind_fail_interval, retry_bind, instance)) == -1)) { 8217c478bd9Sstevel@tonic-gate proto_info_t *pi; 8227c478bd9Sstevel@tonic-gate 8237c478bd9Sstevel@tonic-gate instance->bind_fail_count = 0; 8247c478bd9Sstevel@tonic-gate 8257c478bd9Sstevel@tonic-gate switch (instance->cur_istate) { 8267c478bd9Sstevel@tonic-gate case IIS_DEGRADED: 8277c478bd9Sstevel@tonic-gate case IIS_ONLINE: 8287c478bd9Sstevel@tonic-gate /* check if any of the fds are being poll'd upon */ 8297c478bd9Sstevel@tonic-gate for (pi = uu_list_first(cfg->proto_list); pi != NULL; 8307c478bd9Sstevel@tonic-gate pi = uu_list_next(cfg->proto_list, pi)) { 8317c478bd9Sstevel@tonic-gate if ((pi->listen_fd != -1) && 8327c478bd9Sstevel@tonic-gate (find_pollfd(pi->listen_fd) != NULL)) 8337c478bd9Sstevel@tonic-gate break; 8347c478bd9Sstevel@tonic-gate } 8357c478bd9Sstevel@tonic-gate if (pi != NULL) { /* polling on > 0 fds */ 8367c478bd9Sstevel@tonic-gate warn_msg(gettext("Failed to bind on " 8377c478bd9Sstevel@tonic-gate "all protocols for instance %s, " 8387c478bd9Sstevel@tonic-gate "transitioning to degraded"), 8397c478bd9Sstevel@tonic-gate instance->fmri); 8407c478bd9Sstevel@tonic-gate update_state(instance, IIS_DEGRADED, RERR_NONE); 8417c478bd9Sstevel@tonic-gate instance->bind_retries_exceeded = B_TRUE; 8427c478bd9Sstevel@tonic-gate break; 8437c478bd9Sstevel@tonic-gate } 8447c478bd9Sstevel@tonic-gate 8457c478bd9Sstevel@tonic-gate destroy_bound_fds(instance); 8467c478bd9Sstevel@tonic-gate /* 8477c478bd9Sstevel@tonic-gate * In the case we failed the 'bind' because set_pollfd() 8487c478bd9Sstevel@tonic-gate * failed on all bound fds, use the offline handling. 8497c478bd9Sstevel@tonic-gate */ 8507c478bd9Sstevel@tonic-gate /* FALLTHROUGH */ 8517c478bd9Sstevel@tonic-gate case IIS_OFFLINE: 8527c478bd9Sstevel@tonic-gate case IIS_OFFLINE_BIND: 8537c478bd9Sstevel@tonic-gate error_msg(gettext("Too many bind failures for instance " 8547c478bd9Sstevel@tonic-gate "%s, transitioning to maintenance"), instance->fmri); 8557c478bd9Sstevel@tonic-gate update_state(instance, IIS_MAINTENANCE, 8567c478bd9Sstevel@tonic-gate RERR_FAULT); 8577c478bd9Sstevel@tonic-gate break; 8587c478bd9Sstevel@tonic-gate case IIS_IN_ONLINE_METHOD: 8597c478bd9Sstevel@tonic-gate case IIS_IN_REFRESH_METHOD: 8607c478bd9Sstevel@tonic-gate warn_msg(gettext("Failed to bind on all " 8617c478bd9Sstevel@tonic-gate "protocols for instance %s, instance will go to " 8627c478bd9Sstevel@tonic-gate "degraded"), instance->fmri); 8637c478bd9Sstevel@tonic-gate /* 8647c478bd9Sstevel@tonic-gate * Set the retries exceeded flag so when the method 8657c478bd9Sstevel@tonic-gate * completes the instance goes to the degraded state. 8667c478bd9Sstevel@tonic-gate */ 8677c478bd9Sstevel@tonic-gate instance->bind_retries_exceeded = B_TRUE; 8687c478bd9Sstevel@tonic-gate break; 8697c478bd9Sstevel@tonic-gate default: 8707c478bd9Sstevel@tonic-gate #ifndef NDEBUG 8717c478bd9Sstevel@tonic-gate (void) fprintf(stderr, 8727c478bd9Sstevel@tonic-gate "%s:%d: Unknown instance state %d.\n", 8737c478bd9Sstevel@tonic-gate __FILE__, __LINE__, instance->cur_istate); 8747c478bd9Sstevel@tonic-gate #endif 8757c478bd9Sstevel@tonic-gate abort(); 8767c478bd9Sstevel@tonic-gate } 8777c478bd9Sstevel@tonic-gate } else if (instance->cur_istate == IIS_OFFLINE) { 8787c478bd9Sstevel@tonic-gate /* 8797c478bd9Sstevel@tonic-gate * bind re-scheduled, so if we're offline reflect this in the 8807c478bd9Sstevel@tonic-gate * state. 8817c478bd9Sstevel@tonic-gate */ 8827c478bd9Sstevel@tonic-gate update_state(instance, IIS_OFFLINE_BIND, RERR_NONE); 8837c478bd9Sstevel@tonic-gate } 8847c478bd9Sstevel@tonic-gate } 8857c478bd9Sstevel@tonic-gate 886b823d4c7Sdstaff 887b823d4c7Sdstaff /* 888513ad6b4Sdstaff * Check if two transport protocols for RPC conflict. 889b823d4c7Sdstaff */ 890b823d4c7Sdstaff 891b823d4c7Sdstaff boolean_t 892b823d4c7Sdstaff is_rpc_proto_conflict(const char *proto0, const char *proto1) { 893b823d4c7Sdstaff if (strcmp(proto0, "tcp") == 0) { 894b823d4c7Sdstaff if (strcmp(proto1, "tcp") == 0) 895b823d4c7Sdstaff return (B_TRUE); 896b823d4c7Sdstaff if (strcmp(proto1, "tcp6") == 0) 897b823d4c7Sdstaff return (B_TRUE); 898b823d4c7Sdstaff return (B_FALSE); 899b823d4c7Sdstaff } 900b823d4c7Sdstaff 901b823d4c7Sdstaff if (strcmp(proto0, "tcp6") == 0) { 902b823d4c7Sdstaff if (strcmp(proto1, "tcp") == 0) 903b823d4c7Sdstaff return (B_TRUE); 904b823d4c7Sdstaff if (strcmp(proto1, "tcp6only") == 0) 905b823d4c7Sdstaff return (B_TRUE); 906b823d4c7Sdstaff if (strcmp(proto1, "tcp6") == 0) 907b823d4c7Sdstaff return (B_TRUE); 908b823d4c7Sdstaff return (B_FALSE); 909b823d4c7Sdstaff } 910b823d4c7Sdstaff 911b823d4c7Sdstaff if (strcmp(proto0, "tcp6only") == 0) { 912b823d4c7Sdstaff if (strcmp(proto1, "tcp6only") == 0) 913b823d4c7Sdstaff return (B_TRUE); 914b823d4c7Sdstaff if (strcmp(proto1, "tcp6") == 0) 915b823d4c7Sdstaff return (B_TRUE); 916b823d4c7Sdstaff return (B_FALSE); 917b823d4c7Sdstaff } 918b823d4c7Sdstaff 919b823d4c7Sdstaff if (strcmp(proto0, "udp") == 0) { 920b823d4c7Sdstaff if (strcmp(proto1, "udp") == 0) 921b823d4c7Sdstaff return (B_TRUE); 922b823d4c7Sdstaff if (strcmp(proto1, "udp6") == 0) 923b823d4c7Sdstaff return (B_TRUE); 924b823d4c7Sdstaff return (B_FALSE); 925b823d4c7Sdstaff } 926b823d4c7Sdstaff 927b823d4c7Sdstaff if (strcmp(proto0, "udp6") == 0) { 928b823d4c7Sdstaff 929b823d4c7Sdstaff if (strcmp(proto1, "udp") == 0) 930b823d4c7Sdstaff return (B_TRUE); 931b823d4c7Sdstaff if (strcmp(proto1, "udp6only") == 0) 932b823d4c7Sdstaff return (B_TRUE); 933b823d4c7Sdstaff if (strcmp(proto1, "udp6") == 0) 934b823d4c7Sdstaff return (B_TRUE); 935b823d4c7Sdstaff return (B_FALSE); 936b823d4c7Sdstaff } 937b823d4c7Sdstaff 938b823d4c7Sdstaff if (strcmp(proto0, "udp6only") == 0) { 939b823d4c7Sdstaff 940b823d4c7Sdstaff if (strcmp(proto1, "udp6only") == 0) 941b823d4c7Sdstaff return (B_TRUE); 942b823d4c7Sdstaff if (strcmp(proto1, "udp6") == 0) 943b823d4c7Sdstaff return (B_TRUE); 944b823d4c7Sdstaff return (0); 945b823d4c7Sdstaff } 946b823d4c7Sdstaff 947b823d4c7Sdstaff /* 948b823d4c7Sdstaff * If the protocol isn't TCP/IP or UDP/IP assume that it has its own 949b823d4c7Sdstaff * port namepsace and that conflicts can be detected by literal string 950b823d4c7Sdstaff * comparison. 951b823d4c7Sdstaff */ 952b823d4c7Sdstaff 953b823d4c7Sdstaff if (strcmp(proto0, proto1)) 954b823d4c7Sdstaff return (FALSE); 955b823d4c7Sdstaff 956b823d4c7Sdstaff return (B_TRUE); 957b823d4c7Sdstaff } 958b823d4c7Sdstaff 959b823d4c7Sdstaff 960b823d4c7Sdstaff /* 961b823d4c7Sdstaff * Check if inetd thinks this RPC program number is already registered. 962b823d4c7Sdstaff * 963b823d4c7Sdstaff * An RPC protocol conflict occurs if 964b823d4c7Sdstaff * a) the program numbers are the same and, 965b823d4c7Sdstaff * b) the version numbers overlap, 966b823d4c7Sdstaff * c) the protocols (TCP vs UDP vs tic*) are the same. 967b823d4c7Sdstaff */ 968b823d4c7Sdstaff 969b823d4c7Sdstaff boolean_t 970b823d4c7Sdstaff is_rpc_num_in_use(int rpc_n, char *proto, int lowver, int highver) { 971b823d4c7Sdstaff instance_t *i; 972b823d4c7Sdstaff basic_cfg_t *cfg; 973b823d4c7Sdstaff proto_info_t *pi; 974b823d4c7Sdstaff 975b823d4c7Sdstaff for (i = uu_list_first(instance_list); i != NULL; 976b823d4c7Sdstaff i = uu_list_next(instance_list, i)) { 977b823d4c7Sdstaff 978b823d4c7Sdstaff if (i->cur_istate != IIS_ONLINE) 979b823d4c7Sdstaff continue; 9807778f43aSdstaff cfg = i->config->basic; 981b823d4c7Sdstaff 982b823d4c7Sdstaff for (pi = uu_list_first(cfg->proto_list); pi != NULL; 983b823d4c7Sdstaff pi = uu_list_next(cfg->proto_list, pi)) { 984b823d4c7Sdstaff 985b823d4c7Sdstaff if (pi->ri == NULL) 986b823d4c7Sdstaff continue; 987b823d4c7Sdstaff if (pi->ri->prognum != rpc_n) 988b823d4c7Sdstaff continue; 989513ad6b4Sdstaff if (!is_rpc_proto_conflict(pi->proto, proto)) 990b823d4c7Sdstaff continue; 991b823d4c7Sdstaff if ((lowver < pi->ri->lowver && 992b823d4c7Sdstaff highver < pi->ri->lowver) || 993b823d4c7Sdstaff (lowver > pi->ri->highver && 994b823d4c7Sdstaff highver > pi->ri->highver)) 995b823d4c7Sdstaff continue; 996b823d4c7Sdstaff return (B_TRUE); 997b823d4c7Sdstaff } 998b823d4c7Sdstaff } 999b823d4c7Sdstaff return (B_FALSE); 1000b823d4c7Sdstaff } 1001b823d4c7Sdstaff 1002b823d4c7Sdstaff 10037c478bd9Sstevel@tonic-gate /* 10047c478bd9Sstevel@tonic-gate * Independent of the transport, for each of the entries in the instance's 10057c478bd9Sstevel@tonic-gate * proto list this function first attempts to create an associated network fd; 10067c478bd9Sstevel@tonic-gate * for RPC services these are then bound to a kernel chosen port and the 10077c478bd9Sstevel@tonic-gate * fd is registered with rpcbind; for non-RPC services the fds are bound 10087c478bd9Sstevel@tonic-gate * to the port associated with the instance's service name. On any successful 10097c478bd9Sstevel@tonic-gate * binds the instance is taken online. Failed binds are handled by 10107c478bd9Sstevel@tonic-gate * handle_bind_failure(). 10117c478bd9Sstevel@tonic-gate */ 10127c478bd9Sstevel@tonic-gate void 10137c478bd9Sstevel@tonic-gate create_bound_fds(instance_t *instance) 10147c478bd9Sstevel@tonic-gate { 10157c478bd9Sstevel@tonic-gate basic_cfg_t *cfg = instance->config->basic; 10167c478bd9Sstevel@tonic-gate boolean_t failure = B_FALSE; 10177c478bd9Sstevel@tonic-gate boolean_t success = B_FALSE; 10187c478bd9Sstevel@tonic-gate proto_info_t *pi; 10197c478bd9Sstevel@tonic-gate 10207c478bd9Sstevel@tonic-gate debug_msg("Entering create_bound_fd: instance: %s", instance->fmri); 10217c478bd9Sstevel@tonic-gate 10227c478bd9Sstevel@tonic-gate /* 10237c478bd9Sstevel@tonic-gate * Loop through and try and bind any unbound protos. 10247c478bd9Sstevel@tonic-gate */ 10257c478bd9Sstevel@tonic-gate for (pi = uu_list_first(cfg->proto_list); pi != NULL; 10267c478bd9Sstevel@tonic-gate pi = uu_list_next(cfg->proto_list, pi)) { 10277c478bd9Sstevel@tonic-gate if (pi->listen_fd != -1) 10287c478bd9Sstevel@tonic-gate continue; 10297c478bd9Sstevel@tonic-gate if (cfg->istlx) { 1030*fff9db26Svp pi->listen_fd = create_bound_endpoint(instance, 10317c478bd9Sstevel@tonic-gate (tlx_info_t *)pi); 10327c478bd9Sstevel@tonic-gate } else { 10337c478bd9Sstevel@tonic-gate /* 10347c478bd9Sstevel@tonic-gate * We cast pi to a void so we can then go on to cast 10357c478bd9Sstevel@tonic-gate * it to a socket_info_t without lint complaining 10367c478bd9Sstevel@tonic-gate * about alignment. This is done because the x86 10377c478bd9Sstevel@tonic-gate * version of lint thinks a lint suppression directive 10387c478bd9Sstevel@tonic-gate * is unnecessary and flags it as such, yet the sparc 10397c478bd9Sstevel@tonic-gate * version complains if it's absent. 10407c478bd9Sstevel@tonic-gate */ 10417c478bd9Sstevel@tonic-gate void *p = pi; 1042*fff9db26Svp pi->listen_fd = create_bound_socket(instance, 10437c478bd9Sstevel@tonic-gate (socket_info_t *)p); 10447c478bd9Sstevel@tonic-gate } 10457c478bd9Sstevel@tonic-gate if (pi->listen_fd == -1) { 10467c478bd9Sstevel@tonic-gate failure = B_TRUE; 10477c478bd9Sstevel@tonic-gate continue; 10487c478bd9Sstevel@tonic-gate } 10497c478bd9Sstevel@tonic-gate 10507c478bd9Sstevel@tonic-gate if (pi->ri != NULL) { 1051b823d4c7Sdstaff 1052b823d4c7Sdstaff /* 1053b823d4c7Sdstaff * Don't register the same RPC program number twice. 1054b823d4c7Sdstaff * Doing so silently discards the old service 1055b823d4c7Sdstaff * without causing an error. 1056b823d4c7Sdstaff */ 1057b823d4c7Sdstaff if (is_rpc_num_in_use(pi->ri->prognum, pi->proto, 10587cd7ea0bSrs pi->ri->lowver, pi->ri->highver)) { 1059b823d4c7Sdstaff failure = B_TRUE; 1060b823d4c7Sdstaff close_net_fd(instance, pi->listen_fd); 1061b823d4c7Sdstaff pi->listen_fd = -1; 1062b823d4c7Sdstaff continue; 1063b823d4c7Sdstaff } 1064b823d4c7Sdstaff 10657c478bd9Sstevel@tonic-gate unregister_rpc_service(instance->fmri, pi->ri); 10667c478bd9Sstevel@tonic-gate if (register_rpc_service(instance->fmri, pi->ri) == 10677c478bd9Sstevel@tonic-gate -1) { 10687c478bd9Sstevel@tonic-gate close_net_fd(instance, pi->listen_fd); 10697c478bd9Sstevel@tonic-gate pi->listen_fd = -1; 10707c478bd9Sstevel@tonic-gate failure = B_TRUE; 10717c478bd9Sstevel@tonic-gate continue; 10727c478bd9Sstevel@tonic-gate } 10737c478bd9Sstevel@tonic-gate } 10747c478bd9Sstevel@tonic-gate 10757c478bd9Sstevel@tonic-gate success = B_TRUE; 10767c478bd9Sstevel@tonic-gate } 10777c478bd9Sstevel@tonic-gate 10787c478bd9Sstevel@tonic-gate switch (instance->cur_istate) { 10797c478bd9Sstevel@tonic-gate case IIS_OFFLINE: 10807c478bd9Sstevel@tonic-gate case IIS_OFFLINE_BIND: 10817c478bd9Sstevel@tonic-gate /* 10827c478bd9Sstevel@tonic-gate * If we've managed to bind at least one proto lets run the 10837c478bd9Sstevel@tonic-gate * online method, so we can start listening for it. 10847c478bd9Sstevel@tonic-gate */ 10857c478bd9Sstevel@tonic-gate if (success && run_method(instance, IM_ONLINE, NULL) == -1) 10867c478bd9Sstevel@tonic-gate return; /* instance gone to maintenance */ 10877c478bd9Sstevel@tonic-gate break; 10887c478bd9Sstevel@tonic-gate case IIS_ONLINE: 10897c478bd9Sstevel@tonic-gate case IIS_IN_REFRESH_METHOD: 10907c478bd9Sstevel@tonic-gate /* 10917c478bd9Sstevel@tonic-gate * We're 'online', so start polling on any bound fds we're 10927c478bd9Sstevel@tonic-gate * currently not. 10937c478bd9Sstevel@tonic-gate */ 10947c478bd9Sstevel@tonic-gate if (poll_bound_fds(instance, B_TRUE) != 0) { 10957c478bd9Sstevel@tonic-gate failure = B_TRUE; 10967c478bd9Sstevel@tonic-gate } else if (!failure) { 10977c478bd9Sstevel@tonic-gate /* 10987c478bd9Sstevel@tonic-gate * We've successfully bound and poll'd upon all protos, 10997c478bd9Sstevel@tonic-gate * so reset the failure count. 11007c478bd9Sstevel@tonic-gate */ 11017c478bd9Sstevel@tonic-gate instance->bind_fail_count = 0; 11027c478bd9Sstevel@tonic-gate } 11037c478bd9Sstevel@tonic-gate break; 11047c478bd9Sstevel@tonic-gate case IIS_IN_ONLINE_METHOD: 11057c478bd9Sstevel@tonic-gate /* 11067c478bd9Sstevel@tonic-gate * Nothing to do here as the method completion code will start 11077c478bd9Sstevel@tonic-gate * listening for any successfully bound fds. 11087c478bd9Sstevel@tonic-gate */ 11097c478bd9Sstevel@tonic-gate break; 11107c478bd9Sstevel@tonic-gate default: 11117c478bd9Sstevel@tonic-gate #ifndef NDEBUG 11127c478bd9Sstevel@tonic-gate (void) fprintf(stderr, "%s:%d: Unknown instance state %d.\n", 11137c478bd9Sstevel@tonic-gate __FILE__, __LINE__, instance->cur_istate); 11147c478bd9Sstevel@tonic-gate #endif 11157c478bd9Sstevel@tonic-gate abort(); 11167c478bd9Sstevel@tonic-gate } 11177c478bd9Sstevel@tonic-gate 11187c478bd9Sstevel@tonic-gate if (failure) 11197c478bd9Sstevel@tonic-gate handle_bind_failure(instance); 11207c478bd9Sstevel@tonic-gate } 11217c478bd9Sstevel@tonic-gate 11227c478bd9Sstevel@tonic-gate /* 11237c478bd9Sstevel@tonic-gate * Counter to create_bound_fds(), for each of the bound network fds this 11247c478bd9Sstevel@tonic-gate * function unregisters the instance from rpcbind if it's an RPC service, 11257c478bd9Sstevel@tonic-gate * stops listening for new connections for it and then closes the listening fd. 11267c478bd9Sstevel@tonic-gate */ 11277c478bd9Sstevel@tonic-gate static void 11287c478bd9Sstevel@tonic-gate destroy_bound_fds(instance_t *instance) 11297c478bd9Sstevel@tonic-gate { 11307c478bd9Sstevel@tonic-gate basic_cfg_t *cfg = instance->config->basic; 11317c478bd9Sstevel@tonic-gate proto_info_t *pi; 11327c478bd9Sstevel@tonic-gate 11337c478bd9Sstevel@tonic-gate debug_msg("Entering destroy_bound_fds: instance: %s", instance->fmri); 11347c478bd9Sstevel@tonic-gate 11357c478bd9Sstevel@tonic-gate for (pi = uu_list_first(cfg->proto_list); pi != NULL; 11367c478bd9Sstevel@tonic-gate pi = uu_list_next(cfg->proto_list, pi)) { 11377c478bd9Sstevel@tonic-gate if (pi->listen_fd != -1) { 11387c478bd9Sstevel@tonic-gate if (pi->ri != NULL) 11397c478bd9Sstevel@tonic-gate unregister_rpc_service(instance->fmri, pi->ri); 11407c478bd9Sstevel@tonic-gate clear_pollfd(pi->listen_fd); 11417c478bd9Sstevel@tonic-gate close_net_fd(instance, pi->listen_fd); 11427c478bd9Sstevel@tonic-gate pi->listen_fd = -1; 11437c478bd9Sstevel@tonic-gate } 11447c478bd9Sstevel@tonic-gate } 11457c478bd9Sstevel@tonic-gate 11467c478bd9Sstevel@tonic-gate /* cancel any bind retries */ 11477c478bd9Sstevel@tonic-gate if (instance->bind_timer_id != -1) 11487c478bd9Sstevel@tonic-gate cancel_bind_timer(instance); 11497c478bd9Sstevel@tonic-gate 11507c478bd9Sstevel@tonic-gate instance->bind_retries_exceeded = B_FALSE; 11517c478bd9Sstevel@tonic-gate } 11527c478bd9Sstevel@tonic-gate 11537c478bd9Sstevel@tonic-gate /* 11547c478bd9Sstevel@tonic-gate * Perform %A address expansion and return a pointer to a static string 11557c478bd9Sstevel@tonic-gate * array containing crafted arguments. This expansion is provided for 11567c478bd9Sstevel@tonic-gate * compatibility with 4.2BSD daemons, and as such we've copied the logic of 11577c478bd9Sstevel@tonic-gate * the legacy inetd to maintain this compatibility as much as possible. This 11587c478bd9Sstevel@tonic-gate * logic is a bit scatty, but it dates back at least as far as SunOS 4.x. 11597c478bd9Sstevel@tonic-gate */ 11607c478bd9Sstevel@tonic-gate static char ** 11617c478bd9Sstevel@tonic-gate expand_address(instance_t *inst, const proto_info_t *pi) 11627c478bd9Sstevel@tonic-gate { 11637c478bd9Sstevel@tonic-gate static char addrbuf[sizeof ("ffffffff.65536")]; 11647c478bd9Sstevel@tonic-gate static char *ret[3]; 11657c478bd9Sstevel@tonic-gate instance_cfg_t *cfg = inst->config; 11667c478bd9Sstevel@tonic-gate /* 11677c478bd9Sstevel@tonic-gate * We cast pi to a void so we can then go on to cast it to a 11687c478bd9Sstevel@tonic-gate * socket_info_t without lint complaining about alignment. This 11697c478bd9Sstevel@tonic-gate * is done because the x86 version of lint thinks a lint suppression 11707c478bd9Sstevel@tonic-gate * directive is unnecessary and flags it as such, yet the sparc 11717c478bd9Sstevel@tonic-gate * version complains if it's absent. 11727c478bd9Sstevel@tonic-gate */ 11737c478bd9Sstevel@tonic-gate const void *p = pi; 11747c478bd9Sstevel@tonic-gate 11757c478bd9Sstevel@tonic-gate debug_msg("Entering expand_address"); 11767c478bd9Sstevel@tonic-gate 11777c478bd9Sstevel@tonic-gate /* set ret[0] to the basename of exec path */ 11787c478bd9Sstevel@tonic-gate if ((ret[0] = strrchr(cfg->methods[IM_START]->exec_path, '/')) 11797c478bd9Sstevel@tonic-gate != NULL) { 11807c478bd9Sstevel@tonic-gate ret[0]++; 11817c478bd9Sstevel@tonic-gate } else { 11827c478bd9Sstevel@tonic-gate ret[0] = cfg->methods[IM_START]->exec_path; 11837c478bd9Sstevel@tonic-gate } 11847c478bd9Sstevel@tonic-gate 11857c478bd9Sstevel@tonic-gate if (!cfg->basic->istlx && 11867c478bd9Sstevel@tonic-gate (((socket_info_t *)p)->type == SOCK_DGRAM)) { 11877c478bd9Sstevel@tonic-gate ret[1] = NULL; 11887c478bd9Sstevel@tonic-gate } else { 11897c478bd9Sstevel@tonic-gate addrbuf[0] = '\0'; 11907c478bd9Sstevel@tonic-gate if (!cfg->basic->iswait && 11917c478bd9Sstevel@tonic-gate (inst->remote_addr.ss_family == AF_INET)) { 11927c478bd9Sstevel@tonic-gate struct sockaddr_in *sp; 11937c478bd9Sstevel@tonic-gate 11947c478bd9Sstevel@tonic-gate sp = (struct sockaddr_in *)&(inst->remote_addr); 11957c478bd9Sstevel@tonic-gate (void) snprintf(addrbuf, sizeof (addrbuf), "%x.%hu", 11967c478bd9Sstevel@tonic-gate ntohl(sp->sin_addr.s_addr), ntohs(sp->sin_port)); 11977c478bd9Sstevel@tonic-gate } 11987c478bd9Sstevel@tonic-gate ret[1] = addrbuf; 11997c478bd9Sstevel@tonic-gate ret[2] = NULL; 12007c478bd9Sstevel@tonic-gate } 12017c478bd9Sstevel@tonic-gate 12027c478bd9Sstevel@tonic-gate return (ret); 12037c478bd9Sstevel@tonic-gate } 12047c478bd9Sstevel@tonic-gate 12057c478bd9Sstevel@tonic-gate /* 12067c478bd9Sstevel@tonic-gate * Returns the state associated with the supplied method being run for an 12077c478bd9Sstevel@tonic-gate * instance. 12087c478bd9Sstevel@tonic-gate */ 12097c478bd9Sstevel@tonic-gate static internal_inst_state_t 12107c478bd9Sstevel@tonic-gate get_method_state(instance_method_t method) 12117c478bd9Sstevel@tonic-gate { 12127c478bd9Sstevel@tonic-gate state_info_t *sip; 12137c478bd9Sstevel@tonic-gate 12147c478bd9Sstevel@tonic-gate for (sip = states; sip->istate != IIS_NONE; sip++) { 12157c478bd9Sstevel@tonic-gate if (sip->method_running == method) 12167c478bd9Sstevel@tonic-gate break; 12177c478bd9Sstevel@tonic-gate } 12187c478bd9Sstevel@tonic-gate assert(sip->istate != IIS_NONE); 12197c478bd9Sstevel@tonic-gate 12207c478bd9Sstevel@tonic-gate return (sip->istate); 12217c478bd9Sstevel@tonic-gate } 12227c478bd9Sstevel@tonic-gate 12237c478bd9Sstevel@tonic-gate /* 12247c478bd9Sstevel@tonic-gate * Store the method's PID and CID in the repository. If the store fails 12257c478bd9Sstevel@tonic-gate * we ignore it and just drive on. 12267c478bd9Sstevel@tonic-gate */ 12277c478bd9Sstevel@tonic-gate static void 12287c478bd9Sstevel@tonic-gate add_method_ids(instance_t *ins, pid_t pid, ctid_t cid, instance_method_t mthd) 12297c478bd9Sstevel@tonic-gate { 12307c478bd9Sstevel@tonic-gate debug_msg("Entering add_method_ids"); 12317c478bd9Sstevel@tonic-gate 12327c478bd9Sstevel@tonic-gate if (cid != -1) 123394501b61Sskamm (void) add_remove_contract(ins, B_TRUE, cid); 12347c478bd9Sstevel@tonic-gate 12357c478bd9Sstevel@tonic-gate if (mthd == IM_START) { 12367c478bd9Sstevel@tonic-gate if (add_rep_val(ins->start_pids, (int64_t)pid) == 0) { 12377c478bd9Sstevel@tonic-gate (void) store_rep_vals(ins->start_pids, ins->fmri, 12387c478bd9Sstevel@tonic-gate PR_NAME_START_PIDS); 12397c478bd9Sstevel@tonic-gate } 12407c478bd9Sstevel@tonic-gate } else { 12417c478bd9Sstevel@tonic-gate if (add_rep_val(ins->non_start_pid, (int64_t)pid) == 0) { 12427c478bd9Sstevel@tonic-gate (void) store_rep_vals(ins->non_start_pid, ins->fmri, 12437c478bd9Sstevel@tonic-gate PR_NAME_NON_START_PID); 12447c478bd9Sstevel@tonic-gate } 12457c478bd9Sstevel@tonic-gate } 12467c478bd9Sstevel@tonic-gate } 12477c478bd9Sstevel@tonic-gate 12487c478bd9Sstevel@tonic-gate /* 12497c478bd9Sstevel@tonic-gate * Remove the method's PID and CID from the repository. If the removal 12507c478bd9Sstevel@tonic-gate * fails we ignore it and drive on. 12517c478bd9Sstevel@tonic-gate */ 12527c478bd9Sstevel@tonic-gate void 12537c478bd9Sstevel@tonic-gate remove_method_ids(instance_t *inst, pid_t pid, ctid_t cid, 12547c478bd9Sstevel@tonic-gate instance_method_t mthd) 12557c478bd9Sstevel@tonic-gate { 12567c478bd9Sstevel@tonic-gate debug_msg("Entering remove_method_ids"); 12577c478bd9Sstevel@tonic-gate 12587c478bd9Sstevel@tonic-gate if (cid != -1) 125994501b61Sskamm (void) add_remove_contract(inst, B_FALSE, cid); 12607c478bd9Sstevel@tonic-gate 12617c478bd9Sstevel@tonic-gate if (mthd == IM_START) { 12627c478bd9Sstevel@tonic-gate remove_rep_val(inst->start_pids, (int64_t)pid); 12637c478bd9Sstevel@tonic-gate (void) store_rep_vals(inst->start_pids, inst->fmri, 12647c478bd9Sstevel@tonic-gate PR_NAME_START_PIDS); 12657c478bd9Sstevel@tonic-gate } else { 12667c478bd9Sstevel@tonic-gate remove_rep_val(inst->non_start_pid, (int64_t)pid); 12677c478bd9Sstevel@tonic-gate (void) store_rep_vals(inst->non_start_pid, inst->fmri, 12687c478bd9Sstevel@tonic-gate PR_NAME_NON_START_PID); 12697c478bd9Sstevel@tonic-gate } 12707c478bd9Sstevel@tonic-gate } 12717c478bd9Sstevel@tonic-gate 12727c478bd9Sstevel@tonic-gate static instance_t * 12737c478bd9Sstevel@tonic-gate create_instance(const char *fmri) 12747c478bd9Sstevel@tonic-gate { 12757c478bd9Sstevel@tonic-gate instance_t *ret; 12767c478bd9Sstevel@tonic-gate 12777c478bd9Sstevel@tonic-gate debug_msg("Entering create_instance, instance: %s", fmri); 12787c478bd9Sstevel@tonic-gate 12797c478bd9Sstevel@tonic-gate if (((ret = calloc(1, sizeof (instance_t))) == NULL) || 12807c478bd9Sstevel@tonic-gate ((ret->fmri = strdup(fmri)) == NULL)) 12817c478bd9Sstevel@tonic-gate goto alloc_fail; 12827c478bd9Sstevel@tonic-gate 12837c478bd9Sstevel@tonic-gate ret->conn_fd = -1; 12847c478bd9Sstevel@tonic-gate 12857c478bd9Sstevel@tonic-gate ret->copies = 0; 12867c478bd9Sstevel@tonic-gate 12877c478bd9Sstevel@tonic-gate ret->conn_rate_count = 0; 12887c478bd9Sstevel@tonic-gate ret->fail_rate_count = 0; 12897c478bd9Sstevel@tonic-gate ret->bind_fail_count = 0; 12907c478bd9Sstevel@tonic-gate 12917c478bd9Sstevel@tonic-gate if (((ret->non_start_pid = create_rep_val_list()) == NULL) || 129294501b61Sskamm ((ret->start_pids = create_rep_val_list()) == NULL) || 129394501b61Sskamm ((ret->start_ctids = create_rep_val_list()) == NULL)) 12947c478bd9Sstevel@tonic-gate goto alloc_fail; 12957c478bd9Sstevel@tonic-gate 12967c478bd9Sstevel@tonic-gate ret->cur_istate = IIS_NONE; 12977c478bd9Sstevel@tonic-gate ret->next_istate = IIS_NONE; 12987c478bd9Sstevel@tonic-gate 12997c478bd9Sstevel@tonic-gate if (((ret->cur_istate_rep = create_rep_val_list()) == NULL) || 13007c478bd9Sstevel@tonic-gate ((ret->next_istate_rep = create_rep_val_list()) == NULL)) 13017c478bd9Sstevel@tonic-gate goto alloc_fail; 13027c478bd9Sstevel@tonic-gate 13037c478bd9Sstevel@tonic-gate ret->config = NULL; 13047c478bd9Sstevel@tonic-gate ret->new_config = NULL; 13057c478bd9Sstevel@tonic-gate 13067c478bd9Sstevel@tonic-gate ret->timer_id = -1; 13077c478bd9Sstevel@tonic-gate ret->bind_timer_id = -1; 13087c478bd9Sstevel@tonic-gate 13097c478bd9Sstevel@tonic-gate ret->disable_req = B_FALSE; 13107c478bd9Sstevel@tonic-gate ret->maintenance_req = B_FALSE; 13117c478bd9Sstevel@tonic-gate ret->conn_rate_exceeded = B_FALSE; 13127c478bd9Sstevel@tonic-gate ret->bind_retries_exceeded = B_FALSE; 13137c478bd9Sstevel@tonic-gate 13147c478bd9Sstevel@tonic-gate ret->pending_rst_event = RESTARTER_EVENT_TYPE_INVALID; 13157c478bd9Sstevel@tonic-gate 13167c478bd9Sstevel@tonic-gate return (ret); 13177c478bd9Sstevel@tonic-gate 13187c478bd9Sstevel@tonic-gate alloc_fail: 13197c478bd9Sstevel@tonic-gate error_msg(strerror(errno)); 13207c478bd9Sstevel@tonic-gate destroy_instance(ret); 13217c478bd9Sstevel@tonic-gate return (NULL); 13227c478bd9Sstevel@tonic-gate } 13237c478bd9Sstevel@tonic-gate 13247c478bd9Sstevel@tonic-gate static void 13257c478bd9Sstevel@tonic-gate destroy_instance(instance_t *inst) 13267c478bd9Sstevel@tonic-gate { 13277c478bd9Sstevel@tonic-gate debug_msg("Entering destroy_instance"); 13287c478bd9Sstevel@tonic-gate 13297c478bd9Sstevel@tonic-gate if (inst == NULL) 13307c478bd9Sstevel@tonic-gate return; 13317c478bd9Sstevel@tonic-gate 13327c478bd9Sstevel@tonic-gate destroy_instance_cfg(inst->config); 13337c478bd9Sstevel@tonic-gate destroy_instance_cfg(inst->new_config); 13347c478bd9Sstevel@tonic-gate 13357c478bd9Sstevel@tonic-gate destroy_rep_val_list(inst->cur_istate_rep); 13367c478bd9Sstevel@tonic-gate destroy_rep_val_list(inst->next_istate_rep); 13377c478bd9Sstevel@tonic-gate 13387c478bd9Sstevel@tonic-gate destroy_rep_val_list(inst->start_pids); 13397c478bd9Sstevel@tonic-gate destroy_rep_val_list(inst->non_start_pid); 134094501b61Sskamm destroy_rep_val_list(inst->start_ctids); 13417c478bd9Sstevel@tonic-gate 13427c478bd9Sstevel@tonic-gate free(inst->fmri); 13437c478bd9Sstevel@tonic-gate 13447c478bd9Sstevel@tonic-gate free(inst); 13457c478bd9Sstevel@tonic-gate } 13467c478bd9Sstevel@tonic-gate 13477c478bd9Sstevel@tonic-gate /* 13487c478bd9Sstevel@tonic-gate * Retrieves the current and next states internal states. Returns 0 on success, 13497c478bd9Sstevel@tonic-gate * else returns one of the following on error: 13507c478bd9Sstevel@tonic-gate * SCF_ERROR_NO_MEMORY if memory allocation failed. 13517c478bd9Sstevel@tonic-gate * SCF_ERROR_CONNECTION_BROKEN if the connection to the repository was broken. 13527c478bd9Sstevel@tonic-gate * SCF_ERROR_TYPE_MISMATCH if the property was of an unexpected type. 13537c478bd9Sstevel@tonic-gate * SCF_ERROR_NO_RESOURCES if the server doesn't have adequate resources. 13547c478bd9Sstevel@tonic-gate * SCF_ERROR_NO_SERVER if the server isn't running. 13557c478bd9Sstevel@tonic-gate */ 13567c478bd9Sstevel@tonic-gate static scf_error_t 13577c478bd9Sstevel@tonic-gate retrieve_instance_state(instance_t *inst) 13587c478bd9Sstevel@tonic-gate { 13597c478bd9Sstevel@tonic-gate scf_error_t ret; 13607c478bd9Sstevel@tonic-gate 13617c478bd9Sstevel@tonic-gate debug_msg("Entering retrieve_instance_state: instance: %s", 13627c478bd9Sstevel@tonic-gate inst->fmri); 13637c478bd9Sstevel@tonic-gate 13647c478bd9Sstevel@tonic-gate /* retrieve internal states */ 13657c478bd9Sstevel@tonic-gate if (((ret = retrieve_rep_vals(inst->cur_istate_rep, inst->fmri, 13667c478bd9Sstevel@tonic-gate PR_NAME_CUR_INT_STATE)) != 0) || 13677c478bd9Sstevel@tonic-gate ((ret = retrieve_rep_vals(inst->next_istate_rep, inst->fmri, 13687c478bd9Sstevel@tonic-gate PR_NAME_NEXT_INT_STATE)) != 0)) { 13697c478bd9Sstevel@tonic-gate if (ret != SCF_ERROR_NOT_FOUND) { 13707c478bd9Sstevel@tonic-gate error_msg(gettext( 13717c478bd9Sstevel@tonic-gate "Failed to read state of instance %s: %s"), 13727c478bd9Sstevel@tonic-gate inst->fmri, scf_strerror(scf_error())); 13737c478bd9Sstevel@tonic-gate return (ret); 13747c478bd9Sstevel@tonic-gate } 13757c478bd9Sstevel@tonic-gate 13767c478bd9Sstevel@tonic-gate debug_msg("instance with no previous int state - " 13777c478bd9Sstevel@tonic-gate "setting state to uninitialized"); 13787c478bd9Sstevel@tonic-gate 13797c478bd9Sstevel@tonic-gate if ((set_single_rep_val(inst->cur_istate_rep, 13807c478bd9Sstevel@tonic-gate (int64_t)IIS_UNINITIALIZED) == -1) || 13817c478bd9Sstevel@tonic-gate (set_single_rep_val(inst->next_istate_rep, 13827c478bd9Sstevel@tonic-gate (int64_t)IIS_NONE) == -1)) { 13837c478bd9Sstevel@tonic-gate return (SCF_ERROR_NO_MEMORY); 13847c478bd9Sstevel@tonic-gate } 13857c478bd9Sstevel@tonic-gate } 13867c478bd9Sstevel@tonic-gate 13877c478bd9Sstevel@tonic-gate /* update convenience states */ 13887c478bd9Sstevel@tonic-gate inst->cur_istate = get_single_rep_val(inst->cur_istate_rep); 13897c478bd9Sstevel@tonic-gate inst->next_istate = get_single_rep_val(inst->next_istate_rep); 13907c478bd9Sstevel@tonic-gate debug_msg("previous states: cur: %d, next: %d", inst->cur_istate, 13917c478bd9Sstevel@tonic-gate inst->next_istate); 13927c478bd9Sstevel@tonic-gate 13937c478bd9Sstevel@tonic-gate return (0); 13947c478bd9Sstevel@tonic-gate } 13957c478bd9Sstevel@tonic-gate 13967c478bd9Sstevel@tonic-gate /* 13977c478bd9Sstevel@tonic-gate * Retrieve stored process ids and register each of them so we process their 13987c478bd9Sstevel@tonic-gate * termination. 13997c478bd9Sstevel@tonic-gate */ 14007c478bd9Sstevel@tonic-gate static int 14017c478bd9Sstevel@tonic-gate retrieve_method_pids(instance_t *inst) 14027c478bd9Sstevel@tonic-gate { 14037c478bd9Sstevel@tonic-gate rep_val_t *rv; 14047c478bd9Sstevel@tonic-gate 14057c478bd9Sstevel@tonic-gate debug_msg("Entering remove_method_pids"); 14067c478bd9Sstevel@tonic-gate 14077c478bd9Sstevel@tonic-gate switch (retrieve_rep_vals(inst->start_pids, inst->fmri, 14087c478bd9Sstevel@tonic-gate PR_NAME_START_PIDS)) { 14097c478bd9Sstevel@tonic-gate case 0: 14107c478bd9Sstevel@tonic-gate break; 14117c478bd9Sstevel@tonic-gate case SCF_ERROR_NOT_FOUND: 14127c478bd9Sstevel@tonic-gate return (0); 14137c478bd9Sstevel@tonic-gate default: 14147c478bd9Sstevel@tonic-gate error_msg(gettext("Failed to retrieve the start pids of " 14157c478bd9Sstevel@tonic-gate "instance %s from repository: %s"), inst->fmri, 14167c478bd9Sstevel@tonic-gate scf_strerror(scf_error())); 14177c478bd9Sstevel@tonic-gate return (-1); 14187c478bd9Sstevel@tonic-gate } 14197c478bd9Sstevel@tonic-gate 14207c478bd9Sstevel@tonic-gate rv = uu_list_first(inst->start_pids); 14217c478bd9Sstevel@tonic-gate while (rv != NULL) { 14227c478bd9Sstevel@tonic-gate if (register_method(inst, (pid_t)rv->val, (ctid_t)-1, 14237c478bd9Sstevel@tonic-gate IM_START) == 0) { 14247c478bd9Sstevel@tonic-gate inst->copies++; 14257c478bd9Sstevel@tonic-gate rv = uu_list_next(inst->start_pids, rv); 14267c478bd9Sstevel@tonic-gate } else if (errno == ENOENT) { 14277c478bd9Sstevel@tonic-gate pid_t pid = (pid_t)rv->val; 14287c478bd9Sstevel@tonic-gate 14297c478bd9Sstevel@tonic-gate /* 14307c478bd9Sstevel@tonic-gate * The process must have already terminated. Remove 14317c478bd9Sstevel@tonic-gate * it from the list. 14327c478bd9Sstevel@tonic-gate */ 14337c478bd9Sstevel@tonic-gate rv = uu_list_next(inst->start_pids, rv); 14347c478bd9Sstevel@tonic-gate remove_rep_val(inst->start_pids, pid); 14357c478bd9Sstevel@tonic-gate } else { 14367c478bd9Sstevel@tonic-gate error_msg(gettext("Failed to listen for the completion " 14377c478bd9Sstevel@tonic-gate "of %s method of instance %s"), START_METHOD_NAME, 14387c478bd9Sstevel@tonic-gate inst->fmri); 14397c478bd9Sstevel@tonic-gate rv = uu_list_next(inst->start_pids, rv); 14407c478bd9Sstevel@tonic-gate } 14417c478bd9Sstevel@tonic-gate } 14427c478bd9Sstevel@tonic-gate 14437c478bd9Sstevel@tonic-gate /* synch the repository pid list to remove any terminated pids */ 14447c478bd9Sstevel@tonic-gate (void) store_rep_vals(inst->start_pids, inst->fmri, PR_NAME_START_PIDS); 14457c478bd9Sstevel@tonic-gate 14467c478bd9Sstevel@tonic-gate return (0); 14477c478bd9Sstevel@tonic-gate } 14487c478bd9Sstevel@tonic-gate 14497c478bd9Sstevel@tonic-gate /* 14507c478bd9Sstevel@tonic-gate * Remove the passed instance from inetd control. 14517c478bd9Sstevel@tonic-gate */ 14527c478bd9Sstevel@tonic-gate static void 14537c478bd9Sstevel@tonic-gate remove_instance(instance_t *instance) 14547c478bd9Sstevel@tonic-gate { 14557c478bd9Sstevel@tonic-gate debug_msg("Entering remove_instance"); 14567c478bd9Sstevel@tonic-gate 14577c478bd9Sstevel@tonic-gate switch (instance->cur_istate) { 14587c478bd9Sstevel@tonic-gate case IIS_ONLINE: 14597c478bd9Sstevel@tonic-gate case IIS_DEGRADED: 14607c478bd9Sstevel@tonic-gate /* stop listening for network connections */ 14617c478bd9Sstevel@tonic-gate destroy_bound_fds(instance); 14627c478bd9Sstevel@tonic-gate break; 14637c478bd9Sstevel@tonic-gate case IIS_OFFLINE_BIND: 14647c478bd9Sstevel@tonic-gate cancel_bind_timer(instance); 14657c478bd9Sstevel@tonic-gate break; 14667c478bd9Sstevel@tonic-gate case IIS_OFFLINE_CONRATE: 14677c478bd9Sstevel@tonic-gate cancel_inst_timer(instance); 14687c478bd9Sstevel@tonic-gate break; 14697c478bd9Sstevel@tonic-gate } 14707c478bd9Sstevel@tonic-gate 14717c478bd9Sstevel@tonic-gate /* stop listening for terminated methods */ 14727c478bd9Sstevel@tonic-gate unregister_instance_methods(instance); 14737c478bd9Sstevel@tonic-gate 14747c478bd9Sstevel@tonic-gate uu_list_remove(instance_list, instance); 14757c478bd9Sstevel@tonic-gate destroy_instance(instance); 14767c478bd9Sstevel@tonic-gate } 14777c478bd9Sstevel@tonic-gate 14787c478bd9Sstevel@tonic-gate /* 14797c478bd9Sstevel@tonic-gate * Refresh the configuration of instance 'inst'. This method gets called as 14807c478bd9Sstevel@tonic-gate * a result of a refresh event for the instance from the master restarter, so 14817c478bd9Sstevel@tonic-gate * we can rely upon the instance's running snapshot having been updated from 14827c478bd9Sstevel@tonic-gate * its configuration snapshot. 14837c478bd9Sstevel@tonic-gate */ 14847c478bd9Sstevel@tonic-gate void 14857c478bd9Sstevel@tonic-gate refresh_instance(instance_t *inst) 14867c478bd9Sstevel@tonic-gate { 14877c478bd9Sstevel@tonic-gate instance_cfg_t *cfg; 14887c478bd9Sstevel@tonic-gate 14897c478bd9Sstevel@tonic-gate debug_msg("Entering refresh_instance: inst: %s", inst->fmri); 14907c478bd9Sstevel@tonic-gate 14917c478bd9Sstevel@tonic-gate switch (inst->cur_istate) { 14927c478bd9Sstevel@tonic-gate case IIS_MAINTENANCE: 14937c478bd9Sstevel@tonic-gate case IIS_DISABLED: 14947c478bd9Sstevel@tonic-gate case IIS_UNINITIALIZED: 14957c478bd9Sstevel@tonic-gate /* 14967c478bd9Sstevel@tonic-gate * Ignore any possible changes, we'll re-read the configuration 14977c478bd9Sstevel@tonic-gate * automatically when we exit these states. 14987c478bd9Sstevel@tonic-gate */ 14997c478bd9Sstevel@tonic-gate break; 15007c478bd9Sstevel@tonic-gate 15017c478bd9Sstevel@tonic-gate case IIS_OFFLINE_COPIES: 15027c478bd9Sstevel@tonic-gate case IIS_OFFLINE_BIND: 15037c478bd9Sstevel@tonic-gate case IIS_OFFLINE: 15047c478bd9Sstevel@tonic-gate case IIS_OFFLINE_CONRATE: 15057c478bd9Sstevel@tonic-gate destroy_instance_cfg(inst->config); 15067c478bd9Sstevel@tonic-gate if ((inst->config = read_instance_cfg(inst->fmri)) == NULL) { 15077c478bd9Sstevel@tonic-gate log_invalid_cfg(inst->fmri); 15087c478bd9Sstevel@tonic-gate if (inst->cur_istate == IIS_OFFLINE_BIND) { 15097c478bd9Sstevel@tonic-gate cancel_bind_timer(inst); 15107c478bd9Sstevel@tonic-gate } else if (inst->cur_istate == IIS_OFFLINE_CONRATE) { 15117c478bd9Sstevel@tonic-gate cancel_inst_timer(inst); 15127c478bd9Sstevel@tonic-gate } 15137c478bd9Sstevel@tonic-gate update_state(inst, IIS_MAINTENANCE, RERR_FAULT); 15147c478bd9Sstevel@tonic-gate } else { 15157c478bd9Sstevel@tonic-gate switch (inst->cur_istate) { 15167c478bd9Sstevel@tonic-gate case IIS_OFFLINE_BIND: 15177c478bd9Sstevel@tonic-gate if (copies_limit_exceeded(inst)) { 15187c478bd9Sstevel@tonic-gate /* Cancel scheduled bind retries. */ 15197c478bd9Sstevel@tonic-gate cancel_bind_timer(inst); 15207c478bd9Sstevel@tonic-gate 15217c478bd9Sstevel@tonic-gate /* 15227c478bd9Sstevel@tonic-gate * Take the instance to the copies 15237c478bd9Sstevel@tonic-gate * offline state, via the offline 15247c478bd9Sstevel@tonic-gate * state. 15257c478bd9Sstevel@tonic-gate */ 15267c478bd9Sstevel@tonic-gate update_state(inst, IIS_OFFLINE, 15277c478bd9Sstevel@tonic-gate RERR_RESTART); 15287c478bd9Sstevel@tonic-gate process_offline_inst(inst); 15297c478bd9Sstevel@tonic-gate } 15307c478bd9Sstevel@tonic-gate break; 15317c478bd9Sstevel@tonic-gate 15327c478bd9Sstevel@tonic-gate case IIS_OFFLINE: 15337c478bd9Sstevel@tonic-gate process_offline_inst(inst); 15347c478bd9Sstevel@tonic-gate break; 15357c478bd9Sstevel@tonic-gate 15367c478bd9Sstevel@tonic-gate case IIS_OFFLINE_CONRATE: 15377c478bd9Sstevel@tonic-gate /* 15387c478bd9Sstevel@tonic-gate * Since we're already in a DOS state, 15397c478bd9Sstevel@tonic-gate * don't bother evaluating the copies 15407c478bd9Sstevel@tonic-gate * limit. This will be evaluated when 15417c478bd9Sstevel@tonic-gate * we leave this state in 15427c478bd9Sstevel@tonic-gate * process_offline_inst(). 15437c478bd9Sstevel@tonic-gate */ 15447c478bd9Sstevel@tonic-gate break; 15457c478bd9Sstevel@tonic-gate 15467c478bd9Sstevel@tonic-gate case IIS_OFFLINE_COPIES: 15477c478bd9Sstevel@tonic-gate /* 15487c478bd9Sstevel@tonic-gate * Check if the copies limit has been increased 15497c478bd9Sstevel@tonic-gate * above the current count. 15507c478bd9Sstevel@tonic-gate */ 15517c478bd9Sstevel@tonic-gate if (!copies_limit_exceeded(inst)) { 15527c478bd9Sstevel@tonic-gate update_state(inst, IIS_OFFLINE, 15537c478bd9Sstevel@tonic-gate RERR_RESTART); 15547c478bd9Sstevel@tonic-gate process_offline_inst(inst); 15557c478bd9Sstevel@tonic-gate } 15567c478bd9Sstevel@tonic-gate break; 15577c478bd9Sstevel@tonic-gate 15587c478bd9Sstevel@tonic-gate default: 15597c478bd9Sstevel@tonic-gate assert(0); 15607c478bd9Sstevel@tonic-gate } 15617c478bd9Sstevel@tonic-gate } 15627c478bd9Sstevel@tonic-gate break; 15637c478bd9Sstevel@tonic-gate 15647c478bd9Sstevel@tonic-gate case IIS_DEGRADED: 15657c478bd9Sstevel@tonic-gate case IIS_ONLINE: 15667c478bd9Sstevel@tonic-gate if ((cfg = read_instance_cfg(inst->fmri)) != NULL) { 15677c478bd9Sstevel@tonic-gate instance_cfg_t *ocfg = inst->config; 15687c478bd9Sstevel@tonic-gate 15697c478bd9Sstevel@tonic-gate /* 15707c478bd9Sstevel@tonic-gate * Try to avoid the overhead of taking an instance 15717c478bd9Sstevel@tonic-gate * offline and back on again. We do this by limiting 15727c478bd9Sstevel@tonic-gate * this behavior to two eventualities: 15737c478bd9Sstevel@tonic-gate * - there needs to be a re-bind to listen on behalf 15747c478bd9Sstevel@tonic-gate * of the instance with its new configuration. This 15757c478bd9Sstevel@tonic-gate * could be because for example its service has been 15767c478bd9Sstevel@tonic-gate * associated with a different port, or because the 15777c478bd9Sstevel@tonic-gate * v6only protocol option has been newly applied to 15787c478bd9Sstevel@tonic-gate * the instance. 15797c478bd9Sstevel@tonic-gate * - one or both of the start or online methods of the 15807c478bd9Sstevel@tonic-gate * instance have changed in the new configuration. 15817c478bd9Sstevel@tonic-gate * Without taking the instance offline when the 15827c478bd9Sstevel@tonic-gate * start method changed the instance may be running 15837c478bd9Sstevel@tonic-gate * with unwanted parameters (or event an unwanted 15847c478bd9Sstevel@tonic-gate * binary); and without taking the instance offline 15857c478bd9Sstevel@tonic-gate * if its online method was to change, some part of 15867c478bd9Sstevel@tonic-gate * its running environment may have changed and would 15877c478bd9Sstevel@tonic-gate * not be picked up until the instance next goes 15887c478bd9Sstevel@tonic-gate * offline for another reason. 15897c478bd9Sstevel@tonic-gate */ 15907c478bd9Sstevel@tonic-gate if ((!bind_config_equal(ocfg->basic, cfg->basic)) || 15917c478bd9Sstevel@tonic-gate !method_info_equal(ocfg->methods[IM_ONLINE], 15927c478bd9Sstevel@tonic-gate cfg->methods[IM_ONLINE]) || 15937c478bd9Sstevel@tonic-gate !method_info_equal(ocfg->methods[IM_START], 15947c478bd9Sstevel@tonic-gate cfg->methods[IM_START])) { 15957c478bd9Sstevel@tonic-gate destroy_bound_fds(inst); 15967c478bd9Sstevel@tonic-gate 15977c478bd9Sstevel@tonic-gate assert(inst->new_config == NULL); 15987c478bd9Sstevel@tonic-gate inst->new_config = cfg; 15997c478bd9Sstevel@tonic-gate 16007c478bd9Sstevel@tonic-gate (void) run_method(inst, IM_OFFLINE, NULL); 16017c478bd9Sstevel@tonic-gate } else { /* no bind config / method changes */ 16027c478bd9Sstevel@tonic-gate 16037c478bd9Sstevel@tonic-gate /* 16047c478bd9Sstevel@tonic-gate * swap the proto list over from the old 16057c478bd9Sstevel@tonic-gate * configuration to the new, so we retain 16067c478bd9Sstevel@tonic-gate * our set of network fds. 16077c478bd9Sstevel@tonic-gate */ 16087c478bd9Sstevel@tonic-gate destroy_proto_list(cfg->basic); 16097c478bd9Sstevel@tonic-gate cfg->basic->proto_list = 16107c478bd9Sstevel@tonic-gate ocfg->basic->proto_list; 16117c478bd9Sstevel@tonic-gate ocfg->basic->proto_list = NULL; 16127c478bd9Sstevel@tonic-gate destroy_instance_cfg(ocfg); 16137c478bd9Sstevel@tonic-gate inst->config = cfg; 16147c478bd9Sstevel@tonic-gate 16157c478bd9Sstevel@tonic-gate /* re-evaluate copies limits based on new cfg */ 16167c478bd9Sstevel@tonic-gate if (copies_limit_exceeded(inst)) { 16177c478bd9Sstevel@tonic-gate destroy_bound_fds(inst); 16187c478bd9Sstevel@tonic-gate (void) run_method(inst, IM_OFFLINE, 16197c478bd9Sstevel@tonic-gate NULL); 16207c478bd9Sstevel@tonic-gate } else { 16217c478bd9Sstevel@tonic-gate /* 16227c478bd9Sstevel@tonic-gate * Since the instance isn't being 16237c478bd9Sstevel@tonic-gate * taken offline, where we assume it 16247c478bd9Sstevel@tonic-gate * would pick-up any configuration 16257c478bd9Sstevel@tonic-gate * changes automatically when it goes 16267c478bd9Sstevel@tonic-gate * back online, run its refresh method 16277c478bd9Sstevel@tonic-gate * to allow it to pick-up any changes 16287c478bd9Sstevel@tonic-gate * whilst still online. 16297c478bd9Sstevel@tonic-gate */ 16307c478bd9Sstevel@tonic-gate (void) run_method(inst, IM_REFRESH, 16317c478bd9Sstevel@tonic-gate NULL); 16327c478bd9Sstevel@tonic-gate } 16337c478bd9Sstevel@tonic-gate } 16347c478bd9Sstevel@tonic-gate } else { 16357c478bd9Sstevel@tonic-gate log_invalid_cfg(inst->fmri); 16367c478bd9Sstevel@tonic-gate 16377c478bd9Sstevel@tonic-gate destroy_bound_fds(inst); 16387c478bd9Sstevel@tonic-gate 16397c478bd9Sstevel@tonic-gate inst->maintenance_req = B_TRUE; 16407c478bd9Sstevel@tonic-gate (void) run_method(inst, IM_OFFLINE, NULL); 16417c478bd9Sstevel@tonic-gate } 16427c478bd9Sstevel@tonic-gate break; 16437c478bd9Sstevel@tonic-gate 16447c478bd9Sstevel@tonic-gate default: 16457c478bd9Sstevel@tonic-gate debug_msg("Unhandled current state %d for instance in " 16467c478bd9Sstevel@tonic-gate "refresh_instance", inst->cur_istate); 16477c478bd9Sstevel@tonic-gate assert(0); 16487c478bd9Sstevel@tonic-gate } 16497c478bd9Sstevel@tonic-gate } 16507c478bd9Sstevel@tonic-gate 16517c478bd9Sstevel@tonic-gate /* 16527c478bd9Sstevel@tonic-gate * Called by process_restarter_event() to handle a restarter event for an 16537c478bd9Sstevel@tonic-gate * instance. 16547c478bd9Sstevel@tonic-gate */ 16557c478bd9Sstevel@tonic-gate static void 16567c478bd9Sstevel@tonic-gate handle_restarter_event(instance_t *instance, restarter_event_type_t event, 16577c478bd9Sstevel@tonic-gate boolean_t send_ack) 16587c478bd9Sstevel@tonic-gate { 16597c478bd9Sstevel@tonic-gate debug_msg("Entering handle_restarter_event: inst: %s, event: %d, " 16607c478bd9Sstevel@tonic-gate "curr state: %d", instance->fmri, event, instance->cur_istate); 16617c478bd9Sstevel@tonic-gate 16627c478bd9Sstevel@tonic-gate switch (event) { 16638977779cSvp case RESTARTER_EVENT_TYPE_ADD_INSTANCE: 16648977779cSvp /* 16658977779cSvp * When startd restarts, it sends _ADD_INSTANCE to delegated 16668977779cSvp * restarters for all those services managed by them. We should 16678977779cSvp * acknowledge this event, as startd's graph needs to be updated 16688977779cSvp * about the current state of the service, when startd is 16698977779cSvp * restarting. 16708977779cSvp * update_state() is ok to be called here, as commands for 16718977779cSvp * instances in transition are deferred by 16728977779cSvp * process_restarter_event(). 16738977779cSvp */ 16748977779cSvp update_state(instance, instance->cur_istate, RERR_NONE); 16758977779cSvp goto done; 16767c478bd9Sstevel@tonic-gate case RESTARTER_EVENT_TYPE_ADMIN_REFRESH: 16777c478bd9Sstevel@tonic-gate refresh_instance(instance); 16787c478bd9Sstevel@tonic-gate goto done; 16798977779cSvp case RESTARTER_EVENT_TYPE_ADMIN_RESTART: 16808977779cSvp /* 16818977779cSvp * We've got a restart event, so if the instance is online 16828977779cSvp * in any way initiate taking it offline, and rely upon 16838977779cSvp * our restarter to send us an online event to bring 16848977779cSvp * it back online. 16858977779cSvp */ 16868977779cSvp switch (instance->cur_istate) { 16878977779cSvp case IIS_ONLINE: 16888977779cSvp case IIS_DEGRADED: 16898977779cSvp destroy_bound_fds(instance); 16908977779cSvp (void) run_method(instance, IM_OFFLINE, NULL); 16918977779cSvp } 16928977779cSvp goto done; 16937c478bd9Sstevel@tonic-gate case RESTARTER_EVENT_TYPE_REMOVE_INSTANCE: 16947c478bd9Sstevel@tonic-gate remove_instance(instance); 16957c478bd9Sstevel@tonic-gate goto done; 16967c478bd9Sstevel@tonic-gate case RESTARTER_EVENT_TYPE_STOP: 16977c478bd9Sstevel@tonic-gate switch (instance->cur_istate) { 16987c478bd9Sstevel@tonic-gate case IIS_OFFLINE_CONRATE: 16997c478bd9Sstevel@tonic-gate case IIS_OFFLINE_BIND: 17007c478bd9Sstevel@tonic-gate case IIS_OFFLINE_COPIES: 17017c478bd9Sstevel@tonic-gate /* 17027c478bd9Sstevel@tonic-gate * inetd must be closing down as we wouldn't get this 17037c478bd9Sstevel@tonic-gate * event in one of these states from the master 17047c478bd9Sstevel@tonic-gate * restarter. Take the instance to the offline resting 17057c478bd9Sstevel@tonic-gate * state. 17067c478bd9Sstevel@tonic-gate */ 17077c478bd9Sstevel@tonic-gate if (instance->cur_istate == IIS_OFFLINE_BIND) { 17087c478bd9Sstevel@tonic-gate cancel_bind_timer(instance); 17097c478bd9Sstevel@tonic-gate } else if (instance->cur_istate == 17107c478bd9Sstevel@tonic-gate IIS_OFFLINE_CONRATE) { 17117c478bd9Sstevel@tonic-gate cancel_inst_timer(instance); 17127c478bd9Sstevel@tonic-gate } 17137c478bd9Sstevel@tonic-gate update_state(instance, IIS_OFFLINE, RERR_RESTART); 17147c478bd9Sstevel@tonic-gate goto done; 17157c478bd9Sstevel@tonic-gate } 17167c478bd9Sstevel@tonic-gate break; 17177c478bd9Sstevel@tonic-gate } 17187c478bd9Sstevel@tonic-gate 17197c478bd9Sstevel@tonic-gate switch (instance->cur_istate) { 17207c478bd9Sstevel@tonic-gate case IIS_OFFLINE: 17217c478bd9Sstevel@tonic-gate switch (event) { 17227c478bd9Sstevel@tonic-gate case RESTARTER_EVENT_TYPE_START: 17237c478bd9Sstevel@tonic-gate /* 17247c478bd9Sstevel@tonic-gate * Dependencies are met, let's take the service online. 17257c478bd9Sstevel@tonic-gate * Only try and bind for a wait type service if 17267c478bd9Sstevel@tonic-gate * no process is running on its behalf. Otherwise, just 17277c478bd9Sstevel@tonic-gate * mark the service online and binding will be attempted 17287c478bd9Sstevel@tonic-gate * when the process exits. 17297c478bd9Sstevel@tonic-gate */ 17307c478bd9Sstevel@tonic-gate if (!(instance->config->basic->iswait && 17317c478bd9Sstevel@tonic-gate (uu_list_first(instance->start_pids) != NULL))) { 17327c478bd9Sstevel@tonic-gate create_bound_fds(instance); 17337c478bd9Sstevel@tonic-gate } else { 17347c478bd9Sstevel@tonic-gate update_state(instance, IIS_ONLINE, RERR_NONE); 17357c478bd9Sstevel@tonic-gate } 17367c478bd9Sstevel@tonic-gate break; 17377c478bd9Sstevel@tonic-gate case RESTARTER_EVENT_TYPE_DISABLE: 17387c478bd9Sstevel@tonic-gate case RESTARTER_EVENT_TYPE_ADMIN_DISABLE: 17397c478bd9Sstevel@tonic-gate /* 17407c478bd9Sstevel@tonic-gate * The instance should be disabled, so run the 17417c478bd9Sstevel@tonic-gate * instance's disabled method that will do the work 17427c478bd9Sstevel@tonic-gate * to take it there. 17437c478bd9Sstevel@tonic-gate */ 17447c478bd9Sstevel@tonic-gate (void) run_method(instance, IM_DISABLE, NULL); 17457c478bd9Sstevel@tonic-gate break; 17467c478bd9Sstevel@tonic-gate case RESTARTER_EVENT_TYPE_ADMIN_MAINT_ON: 17477c478bd9Sstevel@tonic-gate case RESTARTER_EVENT_TYPE_DEPENDENCY_CYCLE: 17487c478bd9Sstevel@tonic-gate case RESTARTER_EVENT_TYPE_INVALID_DEPENDENCY: 17497c478bd9Sstevel@tonic-gate /* 17507c478bd9Sstevel@tonic-gate * The master restarter has requested the instance 17517c478bd9Sstevel@tonic-gate * go to maintenance; since we're already offline 17527c478bd9Sstevel@tonic-gate * just update the state to the maintenance state. 17537c478bd9Sstevel@tonic-gate */ 17547c478bd9Sstevel@tonic-gate update_state(instance, IIS_MAINTENANCE, RERR_RESTART); 17557c478bd9Sstevel@tonic-gate break; 17567c478bd9Sstevel@tonic-gate } 17577c478bd9Sstevel@tonic-gate break; 17587c478bd9Sstevel@tonic-gate 17597c478bd9Sstevel@tonic-gate case IIS_OFFLINE_BIND: 17607c478bd9Sstevel@tonic-gate switch (event) { 17617c478bd9Sstevel@tonic-gate case RESTARTER_EVENT_TYPE_DISABLE: 17627c478bd9Sstevel@tonic-gate case RESTARTER_EVENT_TYPE_ADMIN_DISABLE: 17637c478bd9Sstevel@tonic-gate /* 17647c478bd9Sstevel@tonic-gate * The instance should be disabled. Firstly, as for 17657c478bd9Sstevel@tonic-gate * the above dependencies unmet comment, cancel 17667c478bd9Sstevel@tonic-gate * the bind retry timer and update the state to 17677c478bd9Sstevel@tonic-gate * offline. Then, run the disable method to do the 17687c478bd9Sstevel@tonic-gate * work to take the instance from offline to 17697c478bd9Sstevel@tonic-gate * disabled. 17707c478bd9Sstevel@tonic-gate */ 17717c478bd9Sstevel@tonic-gate cancel_bind_timer(instance); 17727c478bd9Sstevel@tonic-gate update_state(instance, IIS_OFFLINE, RERR_RESTART); 17737c478bd9Sstevel@tonic-gate (void) run_method(instance, IM_DISABLE, NULL); 17747c478bd9Sstevel@tonic-gate break; 17757c478bd9Sstevel@tonic-gate case RESTARTER_EVENT_TYPE_ADMIN_MAINT_ON: 17767c478bd9Sstevel@tonic-gate case RESTARTER_EVENT_TYPE_DEPENDENCY_CYCLE: 17777c478bd9Sstevel@tonic-gate case RESTARTER_EVENT_TYPE_INVALID_DEPENDENCY: 17787c478bd9Sstevel@tonic-gate /* 17797c478bd9Sstevel@tonic-gate * The master restarter has requested the instance 17807c478bd9Sstevel@tonic-gate * be placed in the maintenance state. Cancel the 17817c478bd9Sstevel@tonic-gate * outstanding retry timer, and since we're already 17827c478bd9Sstevel@tonic-gate * offline, update the state to maintenance. 17837c478bd9Sstevel@tonic-gate */ 17847c478bd9Sstevel@tonic-gate cancel_bind_timer(instance); 17857c478bd9Sstevel@tonic-gate update_state(instance, IIS_MAINTENANCE, RERR_RESTART); 17867c478bd9Sstevel@tonic-gate break; 17877c478bd9Sstevel@tonic-gate } 17887c478bd9Sstevel@tonic-gate break; 17897c478bd9Sstevel@tonic-gate 17907c478bd9Sstevel@tonic-gate case IIS_DEGRADED: 17917c478bd9Sstevel@tonic-gate case IIS_ONLINE: 17927c478bd9Sstevel@tonic-gate switch (event) { 17937c478bd9Sstevel@tonic-gate case RESTARTER_EVENT_TYPE_DISABLE: 17947c478bd9Sstevel@tonic-gate case RESTARTER_EVENT_TYPE_ADMIN_DISABLE: 17957c478bd9Sstevel@tonic-gate /* 17967c478bd9Sstevel@tonic-gate * The instance needs to be disabled. Do the same work 17977c478bd9Sstevel@tonic-gate * as for the dependencies unmet event below to 17987c478bd9Sstevel@tonic-gate * take the instance offline. 17997c478bd9Sstevel@tonic-gate */ 18007c478bd9Sstevel@tonic-gate destroy_bound_fds(instance); 18017c478bd9Sstevel@tonic-gate /* 18027c478bd9Sstevel@tonic-gate * Indicate that the offline method is being run 18037c478bd9Sstevel@tonic-gate * as part of going to the disabled state, and to 18047c478bd9Sstevel@tonic-gate * carry on this transition. 18057c478bd9Sstevel@tonic-gate */ 18067c478bd9Sstevel@tonic-gate instance->disable_req = B_TRUE; 18077c478bd9Sstevel@tonic-gate (void) run_method(instance, IM_OFFLINE, NULL); 18087c478bd9Sstevel@tonic-gate break; 18097c478bd9Sstevel@tonic-gate case RESTARTER_EVENT_TYPE_ADMIN_MAINT_ON: 18107c478bd9Sstevel@tonic-gate case RESTARTER_EVENT_TYPE_DEPENDENCY_CYCLE: 18117c478bd9Sstevel@tonic-gate case RESTARTER_EVENT_TYPE_INVALID_DEPENDENCY: 18127c478bd9Sstevel@tonic-gate /* 18137c478bd9Sstevel@tonic-gate * The master restarter has requested the instance be 18147c478bd9Sstevel@tonic-gate * placed in the maintenance state. This involves 18157c478bd9Sstevel@tonic-gate * firstly taking the service offline, so do the 18167c478bd9Sstevel@tonic-gate * same work as for the dependencies unmet event 18177c478bd9Sstevel@tonic-gate * below. We set the maintenance_req flag to 18187c478bd9Sstevel@tonic-gate * indicate that when we get to the offline state 18197c478bd9Sstevel@tonic-gate * we should be placed directly into the maintenance 18207c478bd9Sstevel@tonic-gate * state. 18217c478bd9Sstevel@tonic-gate */ 18227c478bd9Sstevel@tonic-gate instance->maintenance_req = B_TRUE; 18237c478bd9Sstevel@tonic-gate /* FALLTHROUGH */ 18247c478bd9Sstevel@tonic-gate case RESTARTER_EVENT_TYPE_STOP: 18257c478bd9Sstevel@tonic-gate /* 18267c478bd9Sstevel@tonic-gate * Dependencies have become unmet. Close and 18277c478bd9Sstevel@tonic-gate * stop listening on the instance's network file 18287c478bd9Sstevel@tonic-gate * descriptor, and run the offline method to do 18297c478bd9Sstevel@tonic-gate * any work required to take us to the offline state. 18307c478bd9Sstevel@tonic-gate */ 18317c478bd9Sstevel@tonic-gate destroy_bound_fds(instance); 18327c478bd9Sstevel@tonic-gate (void) run_method(instance, IM_OFFLINE, NULL); 18337c478bd9Sstevel@tonic-gate } 18347c478bd9Sstevel@tonic-gate break; 18357c478bd9Sstevel@tonic-gate 18367c478bd9Sstevel@tonic-gate case IIS_UNINITIALIZED: 18377c478bd9Sstevel@tonic-gate if (event == RESTARTER_EVENT_TYPE_DISABLE || 18387c478bd9Sstevel@tonic-gate event == RESTARTER_EVENT_TYPE_ADMIN_DISABLE) { 18397c478bd9Sstevel@tonic-gate update_state(instance, IIS_DISABLED, RERR_NONE); 18407c478bd9Sstevel@tonic-gate break; 18417c478bd9Sstevel@tonic-gate } else if (event != RESTARTER_EVENT_TYPE_ENABLE) { 18427c478bd9Sstevel@tonic-gate /* 18437c478bd9Sstevel@tonic-gate * Ignore other events until we know whether we're 18447c478bd9Sstevel@tonic-gate * enabled or not. 18457c478bd9Sstevel@tonic-gate */ 18467c478bd9Sstevel@tonic-gate break; 18477c478bd9Sstevel@tonic-gate } 18487c478bd9Sstevel@tonic-gate 18497c478bd9Sstevel@tonic-gate /* 18507c478bd9Sstevel@tonic-gate * We've got an enabled event; make use of the handling in the 18517c478bd9Sstevel@tonic-gate * disable case. 18527c478bd9Sstevel@tonic-gate */ 18537c478bd9Sstevel@tonic-gate /* FALLTHROUGH */ 18547c478bd9Sstevel@tonic-gate 18557c478bd9Sstevel@tonic-gate case IIS_DISABLED: 18567c478bd9Sstevel@tonic-gate switch (event) { 18577c478bd9Sstevel@tonic-gate case RESTARTER_EVENT_TYPE_ENABLE: 18587c478bd9Sstevel@tonic-gate /* 18597c478bd9Sstevel@tonic-gate * The instance needs enabling. Commence reading its 18607c478bd9Sstevel@tonic-gate * configuration and if successful place the instance 18617c478bd9Sstevel@tonic-gate * in the offline state and let process_offline_inst() 18627c478bd9Sstevel@tonic-gate * take it from there. 18637c478bd9Sstevel@tonic-gate */ 18647c478bd9Sstevel@tonic-gate destroy_instance_cfg(instance->config); 18657c478bd9Sstevel@tonic-gate instance->config = read_instance_cfg(instance->fmri); 18667c478bd9Sstevel@tonic-gate if (instance->config != NULL) { 18677c478bd9Sstevel@tonic-gate update_state(instance, IIS_OFFLINE, 18687c478bd9Sstevel@tonic-gate RERR_RESTART); 18697c478bd9Sstevel@tonic-gate process_offline_inst(instance); 18707c478bd9Sstevel@tonic-gate } else { 18717c478bd9Sstevel@tonic-gate log_invalid_cfg(instance->fmri); 18727c478bd9Sstevel@tonic-gate update_state(instance, IIS_MAINTENANCE, 18737c478bd9Sstevel@tonic-gate RERR_RESTART); 18747c478bd9Sstevel@tonic-gate } 18757c478bd9Sstevel@tonic-gate 18767c478bd9Sstevel@tonic-gate break; 18777c478bd9Sstevel@tonic-gate case RESTARTER_EVENT_TYPE_ADMIN_MAINT_ON: 18787c478bd9Sstevel@tonic-gate case RESTARTER_EVENT_TYPE_DEPENDENCY_CYCLE: 18797c478bd9Sstevel@tonic-gate case RESTARTER_EVENT_TYPE_INVALID_DEPENDENCY: 18807c478bd9Sstevel@tonic-gate /* 18817c478bd9Sstevel@tonic-gate * The master restarter has requested the instance be 18827c478bd9Sstevel@tonic-gate * placed in the maintenance state, so just update its 18837c478bd9Sstevel@tonic-gate * state to maintenance. 18847c478bd9Sstevel@tonic-gate */ 18857c478bd9Sstevel@tonic-gate update_state(instance, IIS_MAINTENANCE, RERR_RESTART); 18867c478bd9Sstevel@tonic-gate break; 18877c478bd9Sstevel@tonic-gate } 18887c478bd9Sstevel@tonic-gate break; 18897c478bd9Sstevel@tonic-gate 18907c478bd9Sstevel@tonic-gate case IIS_MAINTENANCE: 18917c478bd9Sstevel@tonic-gate switch (event) { 18927c478bd9Sstevel@tonic-gate case RESTARTER_EVENT_TYPE_ADMIN_MAINT_OFF: 18937c478bd9Sstevel@tonic-gate case RESTARTER_EVENT_TYPE_ADMIN_DISABLE: 18947c478bd9Sstevel@tonic-gate /* 18957c478bd9Sstevel@tonic-gate * The master restarter has requested that the instance 18967c478bd9Sstevel@tonic-gate * be taken out of maintenance. Read its configuration, 18977c478bd9Sstevel@tonic-gate * and if successful place the instance in the offline 18987c478bd9Sstevel@tonic-gate * state and call process_offline_inst() to take it 18997c478bd9Sstevel@tonic-gate * from there. 19007c478bd9Sstevel@tonic-gate */ 19017c478bd9Sstevel@tonic-gate destroy_instance_cfg(instance->config); 19027c478bd9Sstevel@tonic-gate instance->config = read_instance_cfg(instance->fmri); 19037c478bd9Sstevel@tonic-gate if (instance->config != NULL) { 19047c478bd9Sstevel@tonic-gate update_state(instance, IIS_OFFLINE, 19057c478bd9Sstevel@tonic-gate RERR_RESTART); 19067c478bd9Sstevel@tonic-gate process_offline_inst(instance); 19077c478bd9Sstevel@tonic-gate } else { 19087c478bd9Sstevel@tonic-gate boolean_t enabled; 19097c478bd9Sstevel@tonic-gate 19107c478bd9Sstevel@tonic-gate /* 19117c478bd9Sstevel@tonic-gate * The configuration was invalid. If the 19127c478bd9Sstevel@tonic-gate * service has disabled requested, let's 19137c478bd9Sstevel@tonic-gate * just place the instance in disabled even 19147c478bd9Sstevel@tonic-gate * though we haven't been able to run its 19157c478bd9Sstevel@tonic-gate * disable method, as the slightly incorrect 19167c478bd9Sstevel@tonic-gate * state is likely to be less of an issue to 19177c478bd9Sstevel@tonic-gate * an administrator than refusing to move an 19187c478bd9Sstevel@tonic-gate * instance to disabled. If disable isn't 19197c478bd9Sstevel@tonic-gate * requested, re-mark the service's state 19207c478bd9Sstevel@tonic-gate * as maintenance, so the administrator can 19217c478bd9Sstevel@tonic-gate * see the request was processed. 19227c478bd9Sstevel@tonic-gate */ 19237c478bd9Sstevel@tonic-gate if ((read_enable_merged(instance->fmri, 19247c478bd9Sstevel@tonic-gate &enabled) == 0) && !enabled) { 19257c478bd9Sstevel@tonic-gate update_state(instance, IIS_DISABLED, 19267c478bd9Sstevel@tonic-gate RERR_RESTART); 19277c478bd9Sstevel@tonic-gate } else { 19287c478bd9Sstevel@tonic-gate log_invalid_cfg(instance->fmri); 19297c478bd9Sstevel@tonic-gate update_state(instance, IIS_MAINTENANCE, 19307c478bd9Sstevel@tonic-gate RERR_FAULT); 19317c478bd9Sstevel@tonic-gate } 19327c478bd9Sstevel@tonic-gate } 19337c478bd9Sstevel@tonic-gate break; 19347c478bd9Sstevel@tonic-gate } 19357c478bd9Sstevel@tonic-gate break; 19367c478bd9Sstevel@tonic-gate 19377c478bd9Sstevel@tonic-gate case IIS_OFFLINE_CONRATE: 19387c478bd9Sstevel@tonic-gate switch (event) { 19397c478bd9Sstevel@tonic-gate case RESTARTER_EVENT_TYPE_DISABLE: 19407c478bd9Sstevel@tonic-gate /* 19417c478bd9Sstevel@tonic-gate * The instance wants disabling. Take the instance 19427c478bd9Sstevel@tonic-gate * offline as for the dependencies unmet event above, 19437c478bd9Sstevel@tonic-gate * and then from there run the disable method to do 19447c478bd9Sstevel@tonic-gate * the work to take the instance to the disabled state. 19457c478bd9Sstevel@tonic-gate */ 19467c478bd9Sstevel@tonic-gate cancel_inst_timer(instance); 19477c478bd9Sstevel@tonic-gate update_state(instance, IIS_OFFLINE, RERR_RESTART); 19487c478bd9Sstevel@tonic-gate (void) run_method(instance, IM_DISABLE, NULL); 19497c478bd9Sstevel@tonic-gate break; 19507c478bd9Sstevel@tonic-gate case RESTARTER_EVENT_TYPE_ADMIN_MAINT_ON: 19517c478bd9Sstevel@tonic-gate case RESTARTER_EVENT_TYPE_DEPENDENCY_CYCLE: 19527c478bd9Sstevel@tonic-gate case RESTARTER_EVENT_TYPE_INVALID_DEPENDENCY: 19537c478bd9Sstevel@tonic-gate /* 19547c478bd9Sstevel@tonic-gate * The master restarter has requested the instance 19557c478bd9Sstevel@tonic-gate * be taken to maintenance. Cancel the timer setup 19567c478bd9Sstevel@tonic-gate * when we entered this state, and go directly to 19577c478bd9Sstevel@tonic-gate * maintenance. 19587c478bd9Sstevel@tonic-gate */ 19597c478bd9Sstevel@tonic-gate cancel_inst_timer(instance); 19607c478bd9Sstevel@tonic-gate update_state(instance, IIS_MAINTENANCE, RERR_RESTART); 19617c478bd9Sstevel@tonic-gate break; 19627c478bd9Sstevel@tonic-gate } 19637c478bd9Sstevel@tonic-gate break; 19647c478bd9Sstevel@tonic-gate 19657c478bd9Sstevel@tonic-gate case IIS_OFFLINE_COPIES: 19667c478bd9Sstevel@tonic-gate switch (event) { 19677c478bd9Sstevel@tonic-gate case RESTARTER_EVENT_TYPE_DISABLE: 19687c478bd9Sstevel@tonic-gate /* 19697c478bd9Sstevel@tonic-gate * The instance wants disabling. Update the state 19707c478bd9Sstevel@tonic-gate * to offline, and run the disable method to do the 19717c478bd9Sstevel@tonic-gate * work to take it to the disabled state. 19727c478bd9Sstevel@tonic-gate */ 19737c478bd9Sstevel@tonic-gate update_state(instance, IIS_OFFLINE, RERR_RESTART); 19747c478bd9Sstevel@tonic-gate (void) run_method(instance, IM_DISABLE, NULL); 19757c478bd9Sstevel@tonic-gate break; 19767c478bd9Sstevel@tonic-gate case RESTARTER_EVENT_TYPE_ADMIN_MAINT_ON: 19777c478bd9Sstevel@tonic-gate case RESTARTER_EVENT_TYPE_DEPENDENCY_CYCLE: 19787c478bd9Sstevel@tonic-gate case RESTARTER_EVENT_TYPE_INVALID_DEPENDENCY: 19797c478bd9Sstevel@tonic-gate /* 19807c478bd9Sstevel@tonic-gate * The master restarter has requested the instance be 19817c478bd9Sstevel@tonic-gate * placed in maintenance. Since it's already offline 19827c478bd9Sstevel@tonic-gate * simply update the state. 19837c478bd9Sstevel@tonic-gate */ 19847c478bd9Sstevel@tonic-gate update_state(instance, IIS_MAINTENANCE, RERR_RESTART); 19857c478bd9Sstevel@tonic-gate break; 19867c478bd9Sstevel@tonic-gate } 19877c478bd9Sstevel@tonic-gate break; 19887c478bd9Sstevel@tonic-gate 19897c478bd9Sstevel@tonic-gate default: 19907c478bd9Sstevel@tonic-gate debug_msg("handle_restarter_event: instance in an " 19917c478bd9Sstevel@tonic-gate "unexpected state"); 19927c478bd9Sstevel@tonic-gate assert(0); 19937c478bd9Sstevel@tonic-gate } 19947c478bd9Sstevel@tonic-gate 19957c478bd9Sstevel@tonic-gate done: 19967c478bd9Sstevel@tonic-gate if (send_ack) 19977c478bd9Sstevel@tonic-gate ack_restarter_event(B_TRUE); 19987c478bd9Sstevel@tonic-gate } 19997c478bd9Sstevel@tonic-gate 20007c478bd9Sstevel@tonic-gate /* 20017c478bd9Sstevel@tonic-gate * Tries to read and process an event from the event pipe. If there isn't one 20027c478bd9Sstevel@tonic-gate * or an error occurred processing the event it returns -1. Else, if the event 20037c478bd9Sstevel@tonic-gate * is for an instance we're not already managing we read its state, add it to 20047c478bd9Sstevel@tonic-gate * our list to manage, and if appropriate read its configuration. Whether it's 20057c478bd9Sstevel@tonic-gate * new to us or not, we then handle the specific event. 20067c478bd9Sstevel@tonic-gate * Returns 0 if an event was read and processed successfully, else -1. 20077c478bd9Sstevel@tonic-gate */ 20087c478bd9Sstevel@tonic-gate static int 20097c478bd9Sstevel@tonic-gate process_restarter_event(void) 20107c478bd9Sstevel@tonic-gate { 20117c478bd9Sstevel@tonic-gate char *fmri; 20127c478bd9Sstevel@tonic-gate size_t fmri_size; 20137c478bd9Sstevel@tonic-gate restarter_event_type_t event_type; 20147c478bd9Sstevel@tonic-gate instance_t *instance; 20157c478bd9Sstevel@tonic-gate restarter_event_t *event; 20167c478bd9Sstevel@tonic-gate ssize_t sz; 20177c478bd9Sstevel@tonic-gate 20187c478bd9Sstevel@tonic-gate debug_msg("Entering process_restarter_event"); 20197c478bd9Sstevel@tonic-gate 20207c478bd9Sstevel@tonic-gate /* 20217c478bd9Sstevel@tonic-gate * Try to read an event pointer from the event pipe. 20227c478bd9Sstevel@tonic-gate */ 20237c478bd9Sstevel@tonic-gate errno = 0; 20247c478bd9Sstevel@tonic-gate switch (safe_read(rst_event_pipe[PE_CONSUMER], &event, 20257c478bd9Sstevel@tonic-gate sizeof (event))) { 20267c478bd9Sstevel@tonic-gate case 0: 20277c478bd9Sstevel@tonic-gate break; 20287c478bd9Sstevel@tonic-gate case 1: 20297c478bd9Sstevel@tonic-gate if (errno == EAGAIN) /* no event to read */ 20307c478bd9Sstevel@tonic-gate return (-1); 20317c478bd9Sstevel@tonic-gate 20327c478bd9Sstevel@tonic-gate /* other end of pipe closed */ 20337c478bd9Sstevel@tonic-gate 20347c478bd9Sstevel@tonic-gate /* FALLTHROUGH */ 20357c478bd9Sstevel@tonic-gate default: /* unexpected read error */ 20367c478bd9Sstevel@tonic-gate /* 20377c478bd9Sstevel@tonic-gate * There's something wrong with the event pipe. Let's 20387c478bd9Sstevel@tonic-gate * shutdown and be restarted. 20397c478bd9Sstevel@tonic-gate */ 20407c478bd9Sstevel@tonic-gate inetd_stop(); 20417c478bd9Sstevel@tonic-gate return (-1); 20427c478bd9Sstevel@tonic-gate } 20437c478bd9Sstevel@tonic-gate 20447c478bd9Sstevel@tonic-gate /* 20457c478bd9Sstevel@tonic-gate * Check if we're currently managing the instance which the event 20467c478bd9Sstevel@tonic-gate * pertains to. If not, read its complete state and add it to our 20477c478bd9Sstevel@tonic-gate * list to manage. 20487c478bd9Sstevel@tonic-gate */ 20497c478bd9Sstevel@tonic-gate 20507c478bd9Sstevel@tonic-gate fmri_size = scf_limit(SCF_LIMIT_MAX_FMRI_LENGTH); 20517c478bd9Sstevel@tonic-gate if ((fmri = malloc(fmri_size)) == NULL) { 20527c478bd9Sstevel@tonic-gate error_msg(strerror(errno)); 20537c478bd9Sstevel@tonic-gate goto fail; 20547c478bd9Sstevel@tonic-gate } 20557c478bd9Sstevel@tonic-gate sz = restarter_event_get_instance(event, fmri, fmri_size); 20567c478bd9Sstevel@tonic-gate if (sz >= fmri_size) 20577c478bd9Sstevel@tonic-gate assert(0); 20587c478bd9Sstevel@tonic-gate 20597c478bd9Sstevel@tonic-gate for (instance = uu_list_first(instance_list); instance != NULL; 20607c478bd9Sstevel@tonic-gate instance = uu_list_next(instance_list, instance)) { 20617c478bd9Sstevel@tonic-gate if (strcmp(instance->fmri, fmri) == 0) 20627c478bd9Sstevel@tonic-gate break; 20637c478bd9Sstevel@tonic-gate } 20647c478bd9Sstevel@tonic-gate 20657c478bd9Sstevel@tonic-gate if (instance == NULL) { 20667c478bd9Sstevel@tonic-gate int err; 20677c478bd9Sstevel@tonic-gate 20687c478bd9Sstevel@tonic-gate debug_msg("New instance to manage: %s", fmri); 20697c478bd9Sstevel@tonic-gate 20707c478bd9Sstevel@tonic-gate if (((instance = create_instance(fmri)) == NULL) || 20717c478bd9Sstevel@tonic-gate (retrieve_instance_state(instance) != 0) || 20727c478bd9Sstevel@tonic-gate (retrieve_method_pids(instance) != 0)) { 20737c478bd9Sstevel@tonic-gate destroy_instance(instance); 20747c478bd9Sstevel@tonic-gate free(fmri); 20757c478bd9Sstevel@tonic-gate goto fail; 20767c478bd9Sstevel@tonic-gate } 20777c478bd9Sstevel@tonic-gate 207894501b61Sskamm if (((err = iterate_repository_contracts(instance, 0)) 20797c478bd9Sstevel@tonic-gate != 0) && (err != ENOENT)) { 20807c478bd9Sstevel@tonic-gate error_msg(gettext( 20817c478bd9Sstevel@tonic-gate "Failed to adopt contracts of instance %s: %s"), 20827c478bd9Sstevel@tonic-gate instance->fmri, strerror(err)); 20837c478bd9Sstevel@tonic-gate destroy_instance(instance); 20847c478bd9Sstevel@tonic-gate free(fmri); 20857c478bd9Sstevel@tonic-gate goto fail; 20867c478bd9Sstevel@tonic-gate } 20877c478bd9Sstevel@tonic-gate 20887c478bd9Sstevel@tonic-gate uu_list_node_init(instance, &instance->link, instance_pool); 20897c478bd9Sstevel@tonic-gate (void) uu_list_insert_after(instance_list, NULL, instance); 20907c478bd9Sstevel@tonic-gate 20917c478bd9Sstevel@tonic-gate /* 20927c478bd9Sstevel@tonic-gate * Only read configuration for instances that aren't in any of 20937c478bd9Sstevel@tonic-gate * the disabled, maintenance or uninitialized states, since 20947c478bd9Sstevel@tonic-gate * they'll read it on state exit. 20957c478bd9Sstevel@tonic-gate */ 20967c478bd9Sstevel@tonic-gate if ((instance->cur_istate != IIS_DISABLED) && 20977c478bd9Sstevel@tonic-gate (instance->cur_istate != IIS_MAINTENANCE) && 20987c478bd9Sstevel@tonic-gate (instance->cur_istate != IIS_UNINITIALIZED)) { 20997c478bd9Sstevel@tonic-gate instance->config = read_instance_cfg(instance->fmri); 21007c478bd9Sstevel@tonic-gate if (instance->config == NULL) { 21017c478bd9Sstevel@tonic-gate log_invalid_cfg(instance->fmri); 21027c478bd9Sstevel@tonic-gate update_state(instance, IIS_MAINTENANCE, 21037c478bd9Sstevel@tonic-gate RERR_FAULT); 21047c478bd9Sstevel@tonic-gate } 21057c478bd9Sstevel@tonic-gate } 21067c478bd9Sstevel@tonic-gate } 21077c478bd9Sstevel@tonic-gate 21087c478bd9Sstevel@tonic-gate free(fmri); 21097c478bd9Sstevel@tonic-gate 21107c478bd9Sstevel@tonic-gate event_type = restarter_event_get_type(event); 21117c478bd9Sstevel@tonic-gate debug_msg("Event type: %d for instance: %s", event_type, 21127c478bd9Sstevel@tonic-gate instance->fmri); 21137c478bd9Sstevel@tonic-gate 21147c478bd9Sstevel@tonic-gate /* 21157c478bd9Sstevel@tonic-gate * If the instance is currently running a method, don't process the 21167c478bd9Sstevel@tonic-gate * event now, but attach it to the instance for processing when 21177c478bd9Sstevel@tonic-gate * the instance finishes its transition. 21187c478bd9Sstevel@tonic-gate */ 21197c478bd9Sstevel@tonic-gate if (INST_IN_TRANSITION(instance)) { 21207c478bd9Sstevel@tonic-gate debug_msg("storing event %d for instance %s", event_type, 21217c478bd9Sstevel@tonic-gate instance->fmri); 21227c478bd9Sstevel@tonic-gate instance->pending_rst_event = event_type; 21237c478bd9Sstevel@tonic-gate } else { 21247c478bd9Sstevel@tonic-gate handle_restarter_event(instance, event_type, B_TRUE); 21257c478bd9Sstevel@tonic-gate } 21267c478bd9Sstevel@tonic-gate 21277c478bd9Sstevel@tonic-gate return (0); 21287c478bd9Sstevel@tonic-gate 21297c478bd9Sstevel@tonic-gate fail: 21307c478bd9Sstevel@tonic-gate ack_restarter_event(B_FALSE); 21317c478bd9Sstevel@tonic-gate return (-1); 21327c478bd9Sstevel@tonic-gate } 21337c478bd9Sstevel@tonic-gate 21347c478bd9Sstevel@tonic-gate /* 21357c478bd9Sstevel@tonic-gate * Do the state machine processing associated with the termination of instance 21367c478bd9Sstevel@tonic-gate * 'inst''s start method. 21377c478bd9Sstevel@tonic-gate */ 21387c478bd9Sstevel@tonic-gate void 21397c478bd9Sstevel@tonic-gate process_start_term(instance_t *inst) 21407c478bd9Sstevel@tonic-gate { 21417c478bd9Sstevel@tonic-gate basic_cfg_t *cfg; 21427c478bd9Sstevel@tonic-gate 21437c478bd9Sstevel@tonic-gate debug_msg("Entering process_start_term: inst: %s", inst->fmri); 21447c478bd9Sstevel@tonic-gate 21457c478bd9Sstevel@tonic-gate inst->copies--; 21467c478bd9Sstevel@tonic-gate 21477c478bd9Sstevel@tonic-gate if ((inst->cur_istate == IIS_MAINTENANCE) || 21487c478bd9Sstevel@tonic-gate (inst->cur_istate == IIS_DISABLED)) { 21497c478bd9Sstevel@tonic-gate /* do any further processing/checks when we exit these states */ 21507c478bd9Sstevel@tonic-gate return; 21517c478bd9Sstevel@tonic-gate } 21527c478bd9Sstevel@tonic-gate 21537c478bd9Sstevel@tonic-gate cfg = inst->config->basic; 21547c478bd9Sstevel@tonic-gate 21557c478bd9Sstevel@tonic-gate if (cfg->iswait) { 21567c478bd9Sstevel@tonic-gate proto_info_t *pi; 21577c478bd9Sstevel@tonic-gate 21587c478bd9Sstevel@tonic-gate switch (inst->cur_istate) { 21597c478bd9Sstevel@tonic-gate case IIS_ONLINE: 21607c478bd9Sstevel@tonic-gate case IIS_DEGRADED: 21617c478bd9Sstevel@tonic-gate case IIS_IN_REFRESH_METHOD: 21627c478bd9Sstevel@tonic-gate /* 21637c478bd9Sstevel@tonic-gate * A wait type service's start method has exited. 21647c478bd9Sstevel@tonic-gate * Check if the method was fired off in this inetd's 21657c478bd9Sstevel@tonic-gate * lifetime, or a previous one; if the former, 21667c478bd9Sstevel@tonic-gate * re-commence listening on the service's behalf; if 21677c478bd9Sstevel@tonic-gate * the latter, mark the service offline and let bind 21687c478bd9Sstevel@tonic-gate * attempts commence. 21697c478bd9Sstevel@tonic-gate */ 21707c478bd9Sstevel@tonic-gate for (pi = uu_list_first(cfg->proto_list); pi != NULL; 21717c478bd9Sstevel@tonic-gate pi = uu_list_next(cfg->proto_list, pi)) { 21727c478bd9Sstevel@tonic-gate /* 21737c478bd9Sstevel@tonic-gate * If a bound fd exists, the method was fired 21747c478bd9Sstevel@tonic-gate * off during this inetd's lifetime. 21757c478bd9Sstevel@tonic-gate */ 21767c478bd9Sstevel@tonic-gate if (pi->listen_fd != -1) 21777c478bd9Sstevel@tonic-gate break; 21787c478bd9Sstevel@tonic-gate } 21797c478bd9Sstevel@tonic-gate if (pi != NULL) { 21807c478bd9Sstevel@tonic-gate if (poll_bound_fds(inst, B_TRUE) != 0) 21817c478bd9Sstevel@tonic-gate handle_bind_failure(inst); 21827c478bd9Sstevel@tonic-gate } else { 21837c478bd9Sstevel@tonic-gate update_state(inst, IIS_OFFLINE, RERR_RESTART); 21847c478bd9Sstevel@tonic-gate create_bound_fds(inst); 21857c478bd9Sstevel@tonic-gate } 21867c478bd9Sstevel@tonic-gate } 21877c478bd9Sstevel@tonic-gate } else { 21887c478bd9Sstevel@tonic-gate /* 21897c478bd9Sstevel@tonic-gate * Check if a nowait service should be brought back online 21907c478bd9Sstevel@tonic-gate * after exceeding its copies limit. 21917c478bd9Sstevel@tonic-gate */ 21927c478bd9Sstevel@tonic-gate if ((inst->cur_istate == IIS_OFFLINE_COPIES) && 21937c478bd9Sstevel@tonic-gate !copies_limit_exceeded(inst)) { 21947c478bd9Sstevel@tonic-gate update_state(inst, IIS_OFFLINE, RERR_NONE); 21957c478bd9Sstevel@tonic-gate process_offline_inst(inst); 21967c478bd9Sstevel@tonic-gate } 21977c478bd9Sstevel@tonic-gate } 21987c478bd9Sstevel@tonic-gate } 21997c478bd9Sstevel@tonic-gate 22007c478bd9Sstevel@tonic-gate /* 22017c478bd9Sstevel@tonic-gate * If the instance has a pending event process it and initiate the 22027c478bd9Sstevel@tonic-gate * acknowledgement. 22037c478bd9Sstevel@tonic-gate */ 22047c478bd9Sstevel@tonic-gate static void 22057c478bd9Sstevel@tonic-gate process_pending_rst_event(instance_t *inst) 22067c478bd9Sstevel@tonic-gate { 22077c478bd9Sstevel@tonic-gate if (inst->pending_rst_event != RESTARTER_EVENT_TYPE_INVALID) { 22087c478bd9Sstevel@tonic-gate restarter_event_type_t re; 22097c478bd9Sstevel@tonic-gate 22107c478bd9Sstevel@tonic-gate debug_msg("Injecting pending event %d for instance %s", 22117c478bd9Sstevel@tonic-gate inst->pending_rst_event, inst->fmri); 22127c478bd9Sstevel@tonic-gate re = inst->pending_rst_event; 22137c478bd9Sstevel@tonic-gate inst->pending_rst_event = RESTARTER_EVENT_TYPE_INVALID; 22147c478bd9Sstevel@tonic-gate handle_restarter_event(inst, re, B_TRUE); 22157c478bd9Sstevel@tonic-gate } 22167c478bd9Sstevel@tonic-gate } 22177c478bd9Sstevel@tonic-gate 22187c478bd9Sstevel@tonic-gate /* 22197c478bd9Sstevel@tonic-gate * Do the state machine processing associated with the termination 22207c478bd9Sstevel@tonic-gate * of the specified instance's non-start method with the specified status. 22217c478bd9Sstevel@tonic-gate * Once the processing of the termination is done, the function also picks up 22227c478bd9Sstevel@tonic-gate * any processing that was blocked on the method running. 22237c478bd9Sstevel@tonic-gate */ 22247c478bd9Sstevel@tonic-gate void 22257c478bd9Sstevel@tonic-gate process_non_start_term(instance_t *inst, int status) 22267c478bd9Sstevel@tonic-gate { 22277c478bd9Sstevel@tonic-gate boolean_t ran_online_method = B_FALSE; 22287c478bd9Sstevel@tonic-gate 22297c478bd9Sstevel@tonic-gate debug_msg("Entering process_non_start_term: inst: %s, method: %s", 22307c478bd9Sstevel@tonic-gate inst->fmri, methods[states[inst->cur_istate].method_running].name); 22317c478bd9Sstevel@tonic-gate 22327c478bd9Sstevel@tonic-gate if (status == IMRET_FAILURE) { 22337c478bd9Sstevel@tonic-gate error_msg(gettext("The %s method of instance %s failed, " 22347c478bd9Sstevel@tonic-gate "transitioning to maintenance"), 22357c478bd9Sstevel@tonic-gate methods[states[inst->cur_istate].method_running].name, 22367c478bd9Sstevel@tonic-gate inst->fmri); 22377c478bd9Sstevel@tonic-gate 22387c478bd9Sstevel@tonic-gate if ((inst->cur_istate == IIS_IN_ONLINE_METHOD) || 22397c478bd9Sstevel@tonic-gate (inst->cur_istate == IIS_IN_REFRESH_METHOD)) 22407c478bd9Sstevel@tonic-gate destroy_bound_fds(inst); 22417c478bd9Sstevel@tonic-gate 22427c478bd9Sstevel@tonic-gate update_state(inst, IIS_MAINTENANCE, RERR_FAULT); 22437c478bd9Sstevel@tonic-gate 22447c478bd9Sstevel@tonic-gate inst->maintenance_req = B_FALSE; 22457c478bd9Sstevel@tonic-gate inst->conn_rate_exceeded = B_FALSE; 22467c478bd9Sstevel@tonic-gate 22477c478bd9Sstevel@tonic-gate if (inst->new_config != NULL) { 22487c478bd9Sstevel@tonic-gate destroy_instance_cfg(inst->new_config); 22497c478bd9Sstevel@tonic-gate inst->new_config = NULL; 22507c478bd9Sstevel@tonic-gate } 22517c478bd9Sstevel@tonic-gate 22527c478bd9Sstevel@tonic-gate if (!inetd_stopping) 22537c478bd9Sstevel@tonic-gate process_pending_rst_event(inst); 22547c478bd9Sstevel@tonic-gate 22557c478bd9Sstevel@tonic-gate return; 22567c478bd9Sstevel@tonic-gate } 22577c478bd9Sstevel@tonic-gate 22587c478bd9Sstevel@tonic-gate /* non-failure method return */ 22597c478bd9Sstevel@tonic-gate 22607c478bd9Sstevel@tonic-gate if (status != IMRET_SUCCESS) { 22617c478bd9Sstevel@tonic-gate /* 22627c478bd9Sstevel@tonic-gate * An instance method never returned a supported return code. 22637c478bd9Sstevel@tonic-gate * We'll assume this means the method succeeded for now whilst 22647c478bd9Sstevel@tonic-gate * non-GL-cognizant methods are used - eg. pkill. 22657c478bd9Sstevel@tonic-gate */ 22667c478bd9Sstevel@tonic-gate debug_msg("The %s method of instance %s returned " 22677c478bd9Sstevel@tonic-gate "non-compliant exit code: %d, assuming success", 22687c478bd9Sstevel@tonic-gate methods[states[inst->cur_istate].method_running].name, 22697c478bd9Sstevel@tonic-gate inst->fmri, status); 22707c478bd9Sstevel@tonic-gate } 22717c478bd9Sstevel@tonic-gate 22727c478bd9Sstevel@tonic-gate /* 22737c478bd9Sstevel@tonic-gate * Update the state from the in-transition state. 22747c478bd9Sstevel@tonic-gate */ 22757c478bd9Sstevel@tonic-gate switch (inst->cur_istate) { 22767c478bd9Sstevel@tonic-gate case IIS_IN_ONLINE_METHOD: 22777c478bd9Sstevel@tonic-gate ran_online_method = B_TRUE; 22787c478bd9Sstevel@tonic-gate /* FALLTHROUGH */ 22797c478bd9Sstevel@tonic-gate case IIS_IN_REFRESH_METHOD: 22807c478bd9Sstevel@tonic-gate /* 22817c478bd9Sstevel@tonic-gate * If we've exhausted the bind retries, flag that by setting 22827c478bd9Sstevel@tonic-gate * the instance's state to degraded. 22837c478bd9Sstevel@tonic-gate */ 22847c478bd9Sstevel@tonic-gate if (inst->bind_retries_exceeded) { 22857c478bd9Sstevel@tonic-gate update_state(inst, IIS_DEGRADED, RERR_NONE); 22867c478bd9Sstevel@tonic-gate break; 22877c478bd9Sstevel@tonic-gate } 22887c478bd9Sstevel@tonic-gate /* FALLTHROUGH */ 22897c478bd9Sstevel@tonic-gate default: 22907c478bd9Sstevel@tonic-gate update_state(inst, 22917c478bd9Sstevel@tonic-gate methods[states[inst->cur_istate].method_running].dst_state, 22927c478bd9Sstevel@tonic-gate RERR_NONE); 22937c478bd9Sstevel@tonic-gate } 22947c478bd9Sstevel@tonic-gate 22957c478bd9Sstevel@tonic-gate if (inst->cur_istate == IIS_OFFLINE) { 22967c478bd9Sstevel@tonic-gate if (inst->new_config != NULL) { 22977c478bd9Sstevel@tonic-gate /* 22987c478bd9Sstevel@tonic-gate * This instance was found during refresh to need 22997c478bd9Sstevel@tonic-gate * taking offline because its newly read configuration 23007c478bd9Sstevel@tonic-gate * was sufficiently different. Now we're offline, 23017c478bd9Sstevel@tonic-gate * activate this new configuration. 23027c478bd9Sstevel@tonic-gate */ 23037c478bd9Sstevel@tonic-gate destroy_instance_cfg(inst->config); 23047c478bd9Sstevel@tonic-gate inst->config = inst->new_config; 23057c478bd9Sstevel@tonic-gate inst->new_config = NULL; 23067c478bd9Sstevel@tonic-gate } 23077c478bd9Sstevel@tonic-gate 23087c478bd9Sstevel@tonic-gate /* continue/complete any transitions that are in progress */ 23097c478bd9Sstevel@tonic-gate process_offline_inst(inst); 23107c478bd9Sstevel@tonic-gate 23117c478bd9Sstevel@tonic-gate } else if (ran_online_method) { 23127c478bd9Sstevel@tonic-gate /* 23137c478bd9Sstevel@tonic-gate * We've just successfully executed the online method. We have 23147c478bd9Sstevel@tonic-gate * a set of bound network fds that were created before running 23157c478bd9Sstevel@tonic-gate * this method, so now we're online start listening for 23167c478bd9Sstevel@tonic-gate * connections on them. 23177c478bd9Sstevel@tonic-gate */ 23187c478bd9Sstevel@tonic-gate if (poll_bound_fds(inst, B_TRUE) != 0) 23197c478bd9Sstevel@tonic-gate handle_bind_failure(inst); 23207c478bd9Sstevel@tonic-gate } 23217c478bd9Sstevel@tonic-gate 23227c478bd9Sstevel@tonic-gate /* 23237c478bd9Sstevel@tonic-gate * If we're now out of transition (process_offline_inst() could have 23247c478bd9Sstevel@tonic-gate * fired off another method), carry out any jobs that were blocked by 23257c478bd9Sstevel@tonic-gate * us being in transition. 23267c478bd9Sstevel@tonic-gate */ 23277c478bd9Sstevel@tonic-gate if (!INST_IN_TRANSITION(inst)) { 23287c478bd9Sstevel@tonic-gate if (inetd_stopping) { 23297c478bd9Sstevel@tonic-gate if (!instance_stopped(inst)) { 23307c478bd9Sstevel@tonic-gate /* 23317c478bd9Sstevel@tonic-gate * inetd is stopping, and this instance hasn't 23327c478bd9Sstevel@tonic-gate * been stopped. Inject a stop event. 23337c478bd9Sstevel@tonic-gate */ 23347c478bd9Sstevel@tonic-gate handle_restarter_event(inst, 23357c478bd9Sstevel@tonic-gate RESTARTER_EVENT_TYPE_STOP, B_FALSE); 23367c478bd9Sstevel@tonic-gate } 23377c478bd9Sstevel@tonic-gate } else { 23387c478bd9Sstevel@tonic-gate process_pending_rst_event(inst); 23397c478bd9Sstevel@tonic-gate } 23407c478bd9Sstevel@tonic-gate } 23417c478bd9Sstevel@tonic-gate } 23427c478bd9Sstevel@tonic-gate 23437c478bd9Sstevel@tonic-gate /* 23447c478bd9Sstevel@tonic-gate * Check if configuration file specified is readable. If not return B_FALSE, 23457c478bd9Sstevel@tonic-gate * else return B_TRUE. 23467c478bd9Sstevel@tonic-gate */ 23477c478bd9Sstevel@tonic-gate static boolean_t 23487c478bd9Sstevel@tonic-gate can_read_file(const char *path) 23497c478bd9Sstevel@tonic-gate { 23507c478bd9Sstevel@tonic-gate int ret; 23517c478bd9Sstevel@tonic-gate int serrno; 23527c478bd9Sstevel@tonic-gate 23537c478bd9Sstevel@tonic-gate debug_msg("Entering can_read_file"); 23547c478bd9Sstevel@tonic-gate do { 23557c478bd9Sstevel@tonic-gate ret = access(path, R_OK); 23567c478bd9Sstevel@tonic-gate } while ((ret < 0) && (errno == EINTR)); 23577c478bd9Sstevel@tonic-gate if (ret < 0) { 23587c478bd9Sstevel@tonic-gate if (errno != ENOENT) { 23597c478bd9Sstevel@tonic-gate serrno = errno; 23607c478bd9Sstevel@tonic-gate error_msg(gettext("Failed to access configuration " 23617c478bd9Sstevel@tonic-gate "file %s for performing modification checks: %s"), 23627c478bd9Sstevel@tonic-gate path, strerror(errno)); 23637c478bd9Sstevel@tonic-gate errno = serrno; 23647c478bd9Sstevel@tonic-gate } 23657c478bd9Sstevel@tonic-gate return (B_FALSE); 23667c478bd9Sstevel@tonic-gate } 23677c478bd9Sstevel@tonic-gate return (B_TRUE); 23687c478bd9Sstevel@tonic-gate } 23697c478bd9Sstevel@tonic-gate 23707c478bd9Sstevel@tonic-gate /* 23717c478bd9Sstevel@tonic-gate * Check whether the configuration file has changed contents since inetd 23727c478bd9Sstevel@tonic-gate * was last started/refreshed, and if so, log a message indicating that 23737c478bd9Sstevel@tonic-gate * inetconv needs to be run. 23747c478bd9Sstevel@tonic-gate */ 23757c478bd9Sstevel@tonic-gate static void 23767c478bd9Sstevel@tonic-gate check_conf_file(void) 23777c478bd9Sstevel@tonic-gate { 23787c478bd9Sstevel@tonic-gate char *new_hash; 23797c478bd9Sstevel@tonic-gate char *old_hash = NULL; 23807c478bd9Sstevel@tonic-gate scf_error_t ret; 23817c478bd9Sstevel@tonic-gate const char *file; 23827c478bd9Sstevel@tonic-gate 23837c478bd9Sstevel@tonic-gate debug_msg("Entering check_conf_file"); 23847c478bd9Sstevel@tonic-gate 23857c478bd9Sstevel@tonic-gate if (conf_file == NULL) { 23867c478bd9Sstevel@tonic-gate /* 23877c478bd9Sstevel@tonic-gate * No explicit config file specified, so see if one of the 23887c478bd9Sstevel@tonic-gate * default two are readable, checking the primary one first 23897c478bd9Sstevel@tonic-gate * followed by the secondary. 23907c478bd9Sstevel@tonic-gate */ 23917c478bd9Sstevel@tonic-gate if (can_read_file(PRIMARY_DEFAULT_CONF_FILE)) { 23927c478bd9Sstevel@tonic-gate file = PRIMARY_DEFAULT_CONF_FILE; 23937c478bd9Sstevel@tonic-gate } else if ((errno == ENOENT) && 23947c478bd9Sstevel@tonic-gate can_read_file(SECONDARY_DEFAULT_CONF_FILE)) { 23957c478bd9Sstevel@tonic-gate file = SECONDARY_DEFAULT_CONF_FILE; 23967c478bd9Sstevel@tonic-gate } else { 23977c478bd9Sstevel@tonic-gate return; 23987c478bd9Sstevel@tonic-gate } 23997c478bd9Sstevel@tonic-gate } else { 24007c478bd9Sstevel@tonic-gate file = conf_file; 24017c478bd9Sstevel@tonic-gate if (!can_read_file(file)) 24027c478bd9Sstevel@tonic-gate return; 24037c478bd9Sstevel@tonic-gate } 24047c478bd9Sstevel@tonic-gate 24057c478bd9Sstevel@tonic-gate if (calculate_hash(file, &new_hash) == 0) { 24067c478bd9Sstevel@tonic-gate ret = retrieve_inetd_hash(&old_hash); 24077c478bd9Sstevel@tonic-gate if (((ret == SCF_ERROR_NONE) && 24087c478bd9Sstevel@tonic-gate (strcmp(old_hash, new_hash) != 0))) { 24097c478bd9Sstevel@tonic-gate /* modified config file */ 24107c478bd9Sstevel@tonic-gate warn_msg(gettext( 24117c478bd9Sstevel@tonic-gate "Configuration file %s has been modified since " 24127c478bd9Sstevel@tonic-gate "inetconv was last run. \"inetconv -i %s\" must be " 24137c478bd9Sstevel@tonic-gate "run to apply any changes to the SMF"), file, file); 24147c478bd9Sstevel@tonic-gate } else if ((ret != SCF_ERROR_NOT_FOUND) && 24157c478bd9Sstevel@tonic-gate (ret != SCF_ERROR_NONE)) { 24167c478bd9Sstevel@tonic-gate /* No message if hash not yet computed */ 24177c478bd9Sstevel@tonic-gate error_msg(gettext("Failed to check whether " 24187c478bd9Sstevel@tonic-gate "configuration file %s has been modified: %s"), 24197c478bd9Sstevel@tonic-gate file, scf_strerror(ret)); 24207c478bd9Sstevel@tonic-gate } 24217c478bd9Sstevel@tonic-gate free(old_hash); 24227c478bd9Sstevel@tonic-gate free(new_hash); 24237c478bd9Sstevel@tonic-gate } else { 24247c478bd9Sstevel@tonic-gate error_msg(gettext("Failed to check whether configuration file " 24257c478bd9Sstevel@tonic-gate "%s has been modified: %s"), file, strerror(errno)); 24267c478bd9Sstevel@tonic-gate } 24277c478bd9Sstevel@tonic-gate } 24287c478bd9Sstevel@tonic-gate 24297c478bd9Sstevel@tonic-gate /* 24307c478bd9Sstevel@tonic-gate * Refresh all inetd's managed instances and check the configuration file 24317c478bd9Sstevel@tonic-gate * for any updates since inetconv was last run, logging a message if there 24327c478bd9Sstevel@tonic-gate * are. We call the SMF refresh function to refresh each instance so that 24337c478bd9Sstevel@tonic-gate * the refresh request goes through the framework, and thus results in the 24347c478bd9Sstevel@tonic-gate * running snapshot of each instance being updated from the configuration 24357c478bd9Sstevel@tonic-gate * snapshot. 24367c478bd9Sstevel@tonic-gate */ 24377c478bd9Sstevel@tonic-gate static void 24387c478bd9Sstevel@tonic-gate inetd_refresh(void) 24397c478bd9Sstevel@tonic-gate { 24407c478bd9Sstevel@tonic-gate instance_t *inst; 24417c478bd9Sstevel@tonic-gate 24427c478bd9Sstevel@tonic-gate debug_msg("Entering inetd_refresh"); 24437c478bd9Sstevel@tonic-gate 24447c478bd9Sstevel@tonic-gate /* call libscf to send refresh requests for all managed instances */ 24457c478bd9Sstevel@tonic-gate for (inst = uu_list_first(instance_list); inst != NULL; 24467c478bd9Sstevel@tonic-gate inst = uu_list_next(instance_list, inst)) { 24477c478bd9Sstevel@tonic-gate if (smf_refresh_instance(inst->fmri) < 0) { 24487c478bd9Sstevel@tonic-gate error_msg(gettext("Failed to refresh instance %s: %s"), 24497c478bd9Sstevel@tonic-gate inst->fmri, scf_strerror(scf_error())); 24507c478bd9Sstevel@tonic-gate } 24517c478bd9Sstevel@tonic-gate } 24527c478bd9Sstevel@tonic-gate 24537c478bd9Sstevel@tonic-gate /* 24547c478bd9Sstevel@tonic-gate * Log a message if the configuration file has changed since inetconv 24557c478bd9Sstevel@tonic-gate * was last run. 24567c478bd9Sstevel@tonic-gate */ 24577c478bd9Sstevel@tonic-gate check_conf_file(); 24587c478bd9Sstevel@tonic-gate } 24597c478bd9Sstevel@tonic-gate 24607c478bd9Sstevel@tonic-gate /* 24617c478bd9Sstevel@tonic-gate * Initiate inetd's shutdown. 24627c478bd9Sstevel@tonic-gate */ 24637c478bd9Sstevel@tonic-gate static void 24647c478bd9Sstevel@tonic-gate inetd_stop(void) 24657c478bd9Sstevel@tonic-gate { 24667c478bd9Sstevel@tonic-gate instance_t *inst; 24677c478bd9Sstevel@tonic-gate 24687c478bd9Sstevel@tonic-gate debug_msg("Entering inetd_stop"); 24697c478bd9Sstevel@tonic-gate 24707c478bd9Sstevel@tonic-gate /* Block handling signals for stop and refresh */ 24717c478bd9Sstevel@tonic-gate (void) sighold(SIGHUP); 24727c478bd9Sstevel@tonic-gate (void) sighold(SIGTERM); 24737c478bd9Sstevel@tonic-gate 24747c478bd9Sstevel@tonic-gate /* Indicate inetd is coming down */ 24757c478bd9Sstevel@tonic-gate inetd_stopping = B_TRUE; 24767c478bd9Sstevel@tonic-gate 24777c478bd9Sstevel@tonic-gate /* Stop polling on restarter events. */ 24787c478bd9Sstevel@tonic-gate clear_pollfd(rst_event_pipe[PE_CONSUMER]); 24797c478bd9Sstevel@tonic-gate 24807c478bd9Sstevel@tonic-gate /* Stop polling for any more stop/refresh requests. */ 24817c478bd9Sstevel@tonic-gate clear_pollfd(uds_fd); 24827c478bd9Sstevel@tonic-gate 24837c478bd9Sstevel@tonic-gate /* 24847c478bd9Sstevel@tonic-gate * Send a stop event to all currently unstopped instances that 24857c478bd9Sstevel@tonic-gate * aren't in transition. For those that are in transition, the 24867c478bd9Sstevel@tonic-gate * event will get sent when the transition completes. 24877c478bd9Sstevel@tonic-gate */ 24887c478bd9Sstevel@tonic-gate for (inst = uu_list_first(instance_list); inst != NULL; 24897c478bd9Sstevel@tonic-gate inst = uu_list_next(instance_list, inst)) { 24907c478bd9Sstevel@tonic-gate if (!instance_stopped(inst) && !INST_IN_TRANSITION(inst)) 24917c478bd9Sstevel@tonic-gate handle_restarter_event(inst, 24927c478bd9Sstevel@tonic-gate RESTARTER_EVENT_TYPE_STOP, B_FALSE); 24937c478bd9Sstevel@tonic-gate } 24947c478bd9Sstevel@tonic-gate } 24957c478bd9Sstevel@tonic-gate 24967c478bd9Sstevel@tonic-gate /* 24977c478bd9Sstevel@tonic-gate * Sets up the intra-inetd-process Unix Domain Socket. 24987c478bd9Sstevel@tonic-gate * Returns -1 on error, else 0. 24997c478bd9Sstevel@tonic-gate */ 25007c478bd9Sstevel@tonic-gate static int 25017c478bd9Sstevel@tonic-gate uds_init(void) 25027c478bd9Sstevel@tonic-gate { 25037c478bd9Sstevel@tonic-gate struct sockaddr_un addr; 25047c478bd9Sstevel@tonic-gate 25057c478bd9Sstevel@tonic-gate debug_msg("Entering uds_init"); 25067c478bd9Sstevel@tonic-gate 25077c478bd9Sstevel@tonic-gate if ((uds_fd = socket(AF_UNIX, SOCK_STREAM, 0)) < 0) { 25087c478bd9Sstevel@tonic-gate error_msg("socket: %s", strerror(errno)); 25097c478bd9Sstevel@tonic-gate return (-1); 25107c478bd9Sstevel@tonic-gate } 25117c478bd9Sstevel@tonic-gate 25127c478bd9Sstevel@tonic-gate disable_blocking(uds_fd); 25137c478bd9Sstevel@tonic-gate 25147c478bd9Sstevel@tonic-gate (void) unlink(INETD_UDS_PATH); /* clean-up any stale files */ 25157c478bd9Sstevel@tonic-gate 25167c478bd9Sstevel@tonic-gate (void) memset(&addr, 0, sizeof (addr)); 25177c478bd9Sstevel@tonic-gate addr.sun_family = AF_UNIX; 25187c478bd9Sstevel@tonic-gate /* CONSTCOND */ 25197c478bd9Sstevel@tonic-gate assert(sizeof (INETD_UDS_PATH) <= sizeof (addr.sun_path)); 25207c478bd9Sstevel@tonic-gate (void) strlcpy(addr.sun_path, INETD_UDS_PATH, sizeof (addr.sun_path)); 25217c478bd9Sstevel@tonic-gate 25227c478bd9Sstevel@tonic-gate if (bind(uds_fd, (struct sockaddr *)(&addr), sizeof (addr)) < 0) { 25237c478bd9Sstevel@tonic-gate error_msg(gettext("Failed to bind socket to %s: %s"), 25247c478bd9Sstevel@tonic-gate INETD_UDS_PATH, strerror(errno)); 25257c478bd9Sstevel@tonic-gate (void) close(uds_fd); 25267c478bd9Sstevel@tonic-gate return (-1); 25277c478bd9Sstevel@tonic-gate } 25287c478bd9Sstevel@tonic-gate 25297c478bd9Sstevel@tonic-gate (void) listen(uds_fd, UDS_BACKLOG); 25307c478bd9Sstevel@tonic-gate 25317c478bd9Sstevel@tonic-gate if ((set_pollfd(uds_fd, POLLIN)) == -1) { 25327c478bd9Sstevel@tonic-gate (void) close(uds_fd); 25337c478bd9Sstevel@tonic-gate (void) unlink(INETD_UDS_PATH); 25347c478bd9Sstevel@tonic-gate return (-1); 25357c478bd9Sstevel@tonic-gate } 25367c478bd9Sstevel@tonic-gate 25377c478bd9Sstevel@tonic-gate return (0); 25387c478bd9Sstevel@tonic-gate } 25397c478bd9Sstevel@tonic-gate 25407c478bd9Sstevel@tonic-gate static void 25417c478bd9Sstevel@tonic-gate uds_fini(void) 25427c478bd9Sstevel@tonic-gate { 25437c478bd9Sstevel@tonic-gate if (uds_fd != -1) 25447c478bd9Sstevel@tonic-gate (void) close(uds_fd); 25457c478bd9Sstevel@tonic-gate (void) unlink(INETD_UDS_PATH); 25467c478bd9Sstevel@tonic-gate } 25477c478bd9Sstevel@tonic-gate 25487c478bd9Sstevel@tonic-gate /* 25497c478bd9Sstevel@tonic-gate * Handle an incoming request on the Unix Domain Socket. Returns -1 if there 25507c478bd9Sstevel@tonic-gate * was an error handling the event, else 0. 25517c478bd9Sstevel@tonic-gate */ 25527c478bd9Sstevel@tonic-gate static int 25537c478bd9Sstevel@tonic-gate process_uds_event(void) 25547c478bd9Sstevel@tonic-gate { 25557c478bd9Sstevel@tonic-gate uds_request_t req; 25567c478bd9Sstevel@tonic-gate int fd; 25577c478bd9Sstevel@tonic-gate struct sockaddr_un addr; 25587c478bd9Sstevel@tonic-gate socklen_t len = sizeof (addr); 25597c478bd9Sstevel@tonic-gate int ret; 25607c478bd9Sstevel@tonic-gate uint_t retries = 0; 25617cd7ea0bSrs ucred_t *ucred = NULL; 25627cd7ea0bSrs uid_t euid; 25637c478bd9Sstevel@tonic-gate 25647c478bd9Sstevel@tonic-gate debug_msg("Entering process_uds_event"); 25657c478bd9Sstevel@tonic-gate 25667c478bd9Sstevel@tonic-gate do { 25677c478bd9Sstevel@tonic-gate fd = accept(uds_fd, (struct sockaddr *)&addr, &len); 25687c478bd9Sstevel@tonic-gate } while ((fd < 0) && (errno == EINTR)); 25697c478bd9Sstevel@tonic-gate if (fd < 0) { 25707c478bd9Sstevel@tonic-gate if (errno != EWOULDBLOCK) 25717c478bd9Sstevel@tonic-gate error_msg("accept failed: %s", strerror(errno)); 25727c478bd9Sstevel@tonic-gate return (-1); 25737c478bd9Sstevel@tonic-gate } 25747c478bd9Sstevel@tonic-gate 25757cd7ea0bSrs if (getpeerucred(fd, &ucred) == -1) { 25767cd7ea0bSrs error_msg("getpeerucred failed: %s", strerror(errno)); 25777cd7ea0bSrs (void) close(fd); 25787cd7ea0bSrs return (-1); 25797cd7ea0bSrs } 25807cd7ea0bSrs 25817cd7ea0bSrs /* Check peer credentials before acting on the request */ 25827cd7ea0bSrs euid = ucred_geteuid(ucred); 25837cd7ea0bSrs ucred_free(ucred); 25847cd7ea0bSrs if (euid != 0 && getuid() != euid) { 25857cd7ea0bSrs debug_msg("peer euid %u != uid %u", 25867cd7ea0bSrs (uint_t)euid, (uint_t)getuid()); 25877cd7ea0bSrs (void) close(fd); 25887cd7ea0bSrs return (-1); 25897cd7ea0bSrs } 25907cd7ea0bSrs 25917c478bd9Sstevel@tonic-gate for (retries = 0; retries < UDS_RECV_RETRIES; retries++) { 25927c478bd9Sstevel@tonic-gate if (((ret = safe_read(fd, &req, sizeof (req))) != 1) || 25937c478bd9Sstevel@tonic-gate (errno != EAGAIN)) 25947c478bd9Sstevel@tonic-gate break; 25957c478bd9Sstevel@tonic-gate 25967c478bd9Sstevel@tonic-gate (void) poll(NULL, 0, 100); /* 100ms pause */ 25977c478bd9Sstevel@tonic-gate } 25987c478bd9Sstevel@tonic-gate 25997c478bd9Sstevel@tonic-gate if (ret != 0) { 26007c478bd9Sstevel@tonic-gate error_msg(gettext("Failed read: %s"), strerror(errno)); 26017c478bd9Sstevel@tonic-gate (void) close(fd); 26027c478bd9Sstevel@tonic-gate return (-1); 26037c478bd9Sstevel@tonic-gate } 26047c478bd9Sstevel@tonic-gate 26057c478bd9Sstevel@tonic-gate switch (req) { 26067c478bd9Sstevel@tonic-gate case UR_REFRESH_INETD: 26077c478bd9Sstevel@tonic-gate /* flag the request for event_loop() to process */ 26087c478bd9Sstevel@tonic-gate refresh_inetd_requested = B_TRUE; 26097c478bd9Sstevel@tonic-gate (void) close(fd); 26107c478bd9Sstevel@tonic-gate break; 26117c478bd9Sstevel@tonic-gate case UR_STOP_INETD: 26127c478bd9Sstevel@tonic-gate inetd_stop(); 26137c478bd9Sstevel@tonic-gate break; 26147c478bd9Sstevel@tonic-gate default: 26157c478bd9Sstevel@tonic-gate error_msg("unexpected UDS request"); 26167c478bd9Sstevel@tonic-gate (void) close(fd); 26177c478bd9Sstevel@tonic-gate return (-1); 26187c478bd9Sstevel@tonic-gate } 26197c478bd9Sstevel@tonic-gate 26207c478bd9Sstevel@tonic-gate return (0); 26217c478bd9Sstevel@tonic-gate } 26227c478bd9Sstevel@tonic-gate 26237c478bd9Sstevel@tonic-gate /* 26247c478bd9Sstevel@tonic-gate * Perform checks for common exec string errors. We limit the checks to 26257c478bd9Sstevel@tonic-gate * whether the file exists, is a regular file, and has at least one execute 26267c478bd9Sstevel@tonic-gate * bit set. We leave the core security checks to exec() so as not to duplicate 26277c478bd9Sstevel@tonic-gate * and thus incur the associated drawbacks, but hope to catch the common 26287c478bd9Sstevel@tonic-gate * errors here. 26297c478bd9Sstevel@tonic-gate */ 26307c478bd9Sstevel@tonic-gate static boolean_t 26317c478bd9Sstevel@tonic-gate passes_basic_exec_checks(const char *instance, const char *method, 26327c478bd9Sstevel@tonic-gate const char *path) 26337c478bd9Sstevel@tonic-gate { 26347c478bd9Sstevel@tonic-gate struct stat sbuf; 26357c478bd9Sstevel@tonic-gate 26367c478bd9Sstevel@tonic-gate debug_msg("Entering passes_basic_exec_checks"); 26377c478bd9Sstevel@tonic-gate 26387c478bd9Sstevel@tonic-gate /* check the file exists */ 26397c478bd9Sstevel@tonic-gate while (stat(path, &sbuf) == -1) { 26407c478bd9Sstevel@tonic-gate if (errno != EINTR) { 26417c478bd9Sstevel@tonic-gate error_msg(gettext( 26427c478bd9Sstevel@tonic-gate "Can't stat the %s method of instance %s: %s"), 26437c478bd9Sstevel@tonic-gate method, instance, strerror(errno)); 26447c478bd9Sstevel@tonic-gate return (B_FALSE); 26457c478bd9Sstevel@tonic-gate } 26467c478bd9Sstevel@tonic-gate } 26477c478bd9Sstevel@tonic-gate 26487c478bd9Sstevel@tonic-gate /* 26497c478bd9Sstevel@tonic-gate * Check if the file is a regular file and has at least one execute 26507c478bd9Sstevel@tonic-gate * bit set. 26517c478bd9Sstevel@tonic-gate */ 26527c478bd9Sstevel@tonic-gate if ((sbuf.st_mode & S_IFMT) != S_IFREG) { 26537c478bd9Sstevel@tonic-gate error_msg(gettext( 26547c478bd9Sstevel@tonic-gate "The %s method of instance %s isn't a regular file"), 26557c478bd9Sstevel@tonic-gate method, instance); 26567c478bd9Sstevel@tonic-gate return (B_FALSE); 26577c478bd9Sstevel@tonic-gate } else if ((sbuf.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH)) == 0) { 26587c478bd9Sstevel@tonic-gate error_msg(gettext("The %s method instance %s doesn't have " 26597c478bd9Sstevel@tonic-gate "any execute permissions set"), method, instance); 26607c478bd9Sstevel@tonic-gate return (B_FALSE); 26617c478bd9Sstevel@tonic-gate } 26627c478bd9Sstevel@tonic-gate 26637c478bd9Sstevel@tonic-gate return (B_TRUE); 26647c478bd9Sstevel@tonic-gate } 26657c478bd9Sstevel@tonic-gate 26667c478bd9Sstevel@tonic-gate static void 26677c478bd9Sstevel@tonic-gate exec_method(instance_t *instance, instance_method_t method, method_info_t *mi, 26687c478bd9Sstevel@tonic-gate struct method_context *mthd_ctxt, const proto_info_t *pi) 26697c478bd9Sstevel@tonic-gate { 26707c478bd9Sstevel@tonic-gate char **args; 26717c478bd9Sstevel@tonic-gate char **env; 26727c478bd9Sstevel@tonic-gate const char *errf; 26737c478bd9Sstevel@tonic-gate int serrno; 26747c478bd9Sstevel@tonic-gate basic_cfg_t *cfg = instance->config->basic; 26757c478bd9Sstevel@tonic-gate 26767c478bd9Sstevel@tonic-gate if (method == IM_START) { 26777c478bd9Sstevel@tonic-gate /* 26787c478bd9Sstevel@tonic-gate * If wrappers checks fail, pretend the method was exec'd and 26797c478bd9Sstevel@tonic-gate * failed. 26807c478bd9Sstevel@tonic-gate */ 26817c478bd9Sstevel@tonic-gate if (!tcp_wrappers_ok(instance)) 26827c478bd9Sstevel@tonic-gate exit(IMRET_FAILURE); 26837c478bd9Sstevel@tonic-gate } 26847c478bd9Sstevel@tonic-gate 26857c478bd9Sstevel@tonic-gate /* 26867c478bd9Sstevel@tonic-gate * Revert the disposition of handled signals and ignored signals to 26877c478bd9Sstevel@tonic-gate * their defaults, unblocking any blocked ones as a side effect. 26887c478bd9Sstevel@tonic-gate */ 26897c478bd9Sstevel@tonic-gate (void) sigset(SIGHUP, SIG_DFL); 26907c478bd9Sstevel@tonic-gate (void) sigset(SIGTERM, SIG_DFL); 26917c478bd9Sstevel@tonic-gate (void) sigset(SIGINT, SIG_DFL); 26927c478bd9Sstevel@tonic-gate 26937c478bd9Sstevel@tonic-gate /* 26947c478bd9Sstevel@tonic-gate * Setup exec arguments. Do this before the fd setup below, so our 26957c478bd9Sstevel@tonic-gate * logging related file fd doesn't get taken over before we call 26967c478bd9Sstevel@tonic-gate * expand_address(). 26977c478bd9Sstevel@tonic-gate */ 26987c478bd9Sstevel@tonic-gate if ((method == IM_START) && 26997c478bd9Sstevel@tonic-gate (strcmp(mi->exec_args_we.we_wordv[0], "%A") == 0)) { 27007c478bd9Sstevel@tonic-gate args = expand_address(instance, pi); 27017c478bd9Sstevel@tonic-gate } else { 27027c478bd9Sstevel@tonic-gate args = mi->exec_args_we.we_wordv; 27037c478bd9Sstevel@tonic-gate } 27047c478bd9Sstevel@tonic-gate 27057c478bd9Sstevel@tonic-gate /* Generate audit trail for start operations */ 27067c478bd9Sstevel@tonic-gate if (method == IM_START) { 27077c478bd9Sstevel@tonic-gate adt_event_data_t *ae; 27087c478bd9Sstevel@tonic-gate struct sockaddr_storage ss; 27097c478bd9Sstevel@tonic-gate priv_set_t *privset; 27107c478bd9Sstevel@tonic-gate socklen_t sslen = sizeof (ss); 27117c478bd9Sstevel@tonic-gate 27127c478bd9Sstevel@tonic-gate if ((ae = adt_alloc_event(audit_handle, ADT_inetd_connect)) 27137c478bd9Sstevel@tonic-gate == NULL) { 27147c478bd9Sstevel@tonic-gate error_msg(gettext("Unable to allocate audit event for " 27157c478bd9Sstevel@tonic-gate "the %s method of instance %s"), 27167c478bd9Sstevel@tonic-gate methods[method].name, instance->fmri); 27177c478bd9Sstevel@tonic-gate exit(IMRET_FAILURE); 27187c478bd9Sstevel@tonic-gate } 27197c478bd9Sstevel@tonic-gate 27207c478bd9Sstevel@tonic-gate /* 27217c478bd9Sstevel@tonic-gate * The inetd_connect audit record consists of: 27227c478bd9Sstevel@tonic-gate * Service name 27237c478bd9Sstevel@tonic-gate * Execution path 27247c478bd9Sstevel@tonic-gate * Remote address and port 27257c478bd9Sstevel@tonic-gate * Local port 27267c478bd9Sstevel@tonic-gate * Process privileges 27277c478bd9Sstevel@tonic-gate */ 27287c478bd9Sstevel@tonic-gate ae->adt_inetd_connect.service_name = cfg->svc_name; 27297c478bd9Sstevel@tonic-gate ae->adt_inetd_connect.cmd = mi->exec_path; 27307c478bd9Sstevel@tonic-gate 27317c478bd9Sstevel@tonic-gate if (instance->remote_addr.ss_family == AF_INET) { 27327c478bd9Sstevel@tonic-gate struct in_addr *in = SS_SINADDR(instance->remote_addr); 27337c478bd9Sstevel@tonic-gate ae->adt_inetd_connect.ip_adr[0] = in->s_addr; 27347c478bd9Sstevel@tonic-gate ae->adt_inetd_connect.ip_type = ADT_IPv4; 27357c478bd9Sstevel@tonic-gate } else { 27367c478bd9Sstevel@tonic-gate uint32_t *addr6; 27377c478bd9Sstevel@tonic-gate int i; 27387c478bd9Sstevel@tonic-gate 27397c478bd9Sstevel@tonic-gate ae->adt_inetd_connect.ip_type = ADT_IPv6; 27407c478bd9Sstevel@tonic-gate addr6 = (uint32_t *)SS_SINADDR(instance->remote_addr); 27417c478bd9Sstevel@tonic-gate for (i = 0; i < 4; ++i) 27427c478bd9Sstevel@tonic-gate ae->adt_inetd_connect.ip_adr[i] = addr6[i]; 27437c478bd9Sstevel@tonic-gate } 27447c478bd9Sstevel@tonic-gate 27457c478bd9Sstevel@tonic-gate ae->adt_inetd_connect.ip_remote_port = 27467c478bd9Sstevel@tonic-gate ntohs(SS_PORT(instance->remote_addr)); 27477c478bd9Sstevel@tonic-gate 27487c478bd9Sstevel@tonic-gate if (getsockname(instance->conn_fd, (struct sockaddr *)&ss, 27497c478bd9Sstevel@tonic-gate &sslen) == 0) 27507c478bd9Sstevel@tonic-gate ae->adt_inetd_connect.ip_local_port = 27517c478bd9Sstevel@tonic-gate ntohs(SS_PORT(ss)); 27527c478bd9Sstevel@tonic-gate 27537c478bd9Sstevel@tonic-gate privset = mthd_ctxt->priv_set; 27547c478bd9Sstevel@tonic-gate if (privset == NULL) { 27557c478bd9Sstevel@tonic-gate privset = priv_allocset(); 27567c478bd9Sstevel@tonic-gate if (privset != NULL && 27577c478bd9Sstevel@tonic-gate getppriv(PRIV_EFFECTIVE, privset) != 0) { 27587c478bd9Sstevel@tonic-gate priv_freeset(privset); 27597c478bd9Sstevel@tonic-gate privset = NULL; 27607c478bd9Sstevel@tonic-gate } 27617c478bd9Sstevel@tonic-gate } 27627c478bd9Sstevel@tonic-gate 27637c478bd9Sstevel@tonic-gate ae->adt_inetd_connect.privileges = privset; 27647c478bd9Sstevel@tonic-gate 27657c478bd9Sstevel@tonic-gate (void) adt_put_event(ae, ADT_SUCCESS, ADT_SUCCESS); 27667c478bd9Sstevel@tonic-gate adt_free_event(ae); 27677c478bd9Sstevel@tonic-gate 27687c478bd9Sstevel@tonic-gate if (privset != NULL && mthd_ctxt->priv_set == NULL) 27697c478bd9Sstevel@tonic-gate priv_freeset(privset); 27707c478bd9Sstevel@tonic-gate } 27717c478bd9Sstevel@tonic-gate 27727c478bd9Sstevel@tonic-gate /* 27737c478bd9Sstevel@tonic-gate * Set method context before the fd setup below so we can output an 27747c478bd9Sstevel@tonic-gate * error message if it fails. 27757c478bd9Sstevel@tonic-gate */ 27767c478bd9Sstevel@tonic-gate if ((errno = restarter_set_method_context(mthd_ctxt, &errf)) != 0) { 27777c478bd9Sstevel@tonic-gate const char *msg; 27787c478bd9Sstevel@tonic-gate 27797c478bd9Sstevel@tonic-gate if (errno == -1) { 27807c478bd9Sstevel@tonic-gate if (strcmp(errf, "core_set_process_path") == 0) { 27817c478bd9Sstevel@tonic-gate msg = gettext("Failed to set the corefile path " 27827c478bd9Sstevel@tonic-gate "for the %s method of instance %s"); 27837c478bd9Sstevel@tonic-gate } else if (strcmp(errf, "setproject") == 0) { 27847c478bd9Sstevel@tonic-gate msg = gettext("Failed to assign a resource " 27857c478bd9Sstevel@tonic-gate "control for the %s method of instance %s"); 27867c478bd9Sstevel@tonic-gate } else if (strcmp(errf, "pool_set_binding") == 0) { 27877c478bd9Sstevel@tonic-gate msg = gettext("Failed to bind the %s method of " 27887c478bd9Sstevel@tonic-gate "instance %s to a pool due to a system " 27897c478bd9Sstevel@tonic-gate "error"); 27907c478bd9Sstevel@tonic-gate } else { 27917c478bd9Sstevel@tonic-gate assert(0); 27927c478bd9Sstevel@tonic-gate abort(); 27937c478bd9Sstevel@tonic-gate } 27947c478bd9Sstevel@tonic-gate 27957c478bd9Sstevel@tonic-gate error_msg(msg, methods[method].name, instance->fmri); 27967c478bd9Sstevel@tonic-gate 27977c478bd9Sstevel@tonic-gate exit(IMRET_FAILURE); 27987c478bd9Sstevel@tonic-gate } 27997c478bd9Sstevel@tonic-gate 28007c478bd9Sstevel@tonic-gate if (errf != NULL && strcmp(errf, "pool_set_binding") == 0) { 28017c478bd9Sstevel@tonic-gate switch (errno) { 28027c478bd9Sstevel@tonic-gate case ENOENT: 28037c478bd9Sstevel@tonic-gate msg = gettext("Failed to find resource pool " 28047c478bd9Sstevel@tonic-gate "for the %s method of instance %s"); 28057c478bd9Sstevel@tonic-gate break; 28067c478bd9Sstevel@tonic-gate 28077c478bd9Sstevel@tonic-gate case EBADF: 28087c478bd9Sstevel@tonic-gate msg = gettext("Failed to bind the %s method of " 28097c478bd9Sstevel@tonic-gate "instance %s to a pool due to invalid " 28107c478bd9Sstevel@tonic-gate "configuration"); 28117c478bd9Sstevel@tonic-gate break; 28127c478bd9Sstevel@tonic-gate 28133ad28c1eSrm case EINVAL: 28143ad28c1eSrm msg = gettext("Failed to bind the %s method of " 28153ad28c1eSrm "instance %s to a pool due to invalid " 28163ad28c1eSrm "pool name"); 28173ad28c1eSrm break; 28183ad28c1eSrm 28197c478bd9Sstevel@tonic-gate default: 28207c478bd9Sstevel@tonic-gate assert(0); 28217c478bd9Sstevel@tonic-gate abort(); 28227c478bd9Sstevel@tonic-gate } 28237c478bd9Sstevel@tonic-gate 28247c478bd9Sstevel@tonic-gate exit(IMRET_FAILURE); 28257c478bd9Sstevel@tonic-gate } 28267c478bd9Sstevel@tonic-gate 28277c478bd9Sstevel@tonic-gate if (errf != NULL) { 28287c478bd9Sstevel@tonic-gate error_msg(gettext("Failed to set credentials for the " 28297c478bd9Sstevel@tonic-gate "%s method of instance %s (%s: %s)"), 28307c478bd9Sstevel@tonic-gate methods[method].name, instance->fmri, errf, 28317c478bd9Sstevel@tonic-gate strerror(errno)); 28327c478bd9Sstevel@tonic-gate exit(IMRET_FAILURE); 28337c478bd9Sstevel@tonic-gate } 28347c478bd9Sstevel@tonic-gate 28357c478bd9Sstevel@tonic-gate switch (errno) { 28367c478bd9Sstevel@tonic-gate case ENOMEM: 28377c478bd9Sstevel@tonic-gate msg = gettext("Failed to set credentials for the %s " 28387c478bd9Sstevel@tonic-gate "method of instance %s (out of memory)"); 28397c478bd9Sstevel@tonic-gate break; 28407c478bd9Sstevel@tonic-gate 28417c478bd9Sstevel@tonic-gate case ENOENT: 28427c478bd9Sstevel@tonic-gate msg = gettext("Failed to set credentials for the %s " 28437c478bd9Sstevel@tonic-gate "method of instance %s (no passwd or shadow " 28447c478bd9Sstevel@tonic-gate "entry for user)"); 28457c478bd9Sstevel@tonic-gate break; 28467c478bd9Sstevel@tonic-gate 28477c478bd9Sstevel@tonic-gate default: 28487c478bd9Sstevel@tonic-gate assert(0); 28497c478bd9Sstevel@tonic-gate abort(); 28507c478bd9Sstevel@tonic-gate } 28517c478bd9Sstevel@tonic-gate 28527c478bd9Sstevel@tonic-gate error_msg(msg, methods[method].name, instance->fmri); 28537c478bd9Sstevel@tonic-gate exit(IMRET_FAILURE); 28547c478bd9Sstevel@tonic-gate } 28557c478bd9Sstevel@tonic-gate 28567c478bd9Sstevel@tonic-gate /* let exec() free mthd_ctxt */ 28577c478bd9Sstevel@tonic-gate 28587c478bd9Sstevel@tonic-gate /* setup standard fds */ 28597c478bd9Sstevel@tonic-gate if (method == IM_START) { 28607c478bd9Sstevel@tonic-gate (void) dup2(instance->conn_fd, STDIN_FILENO); 28617c478bd9Sstevel@tonic-gate } else { 28627c478bd9Sstevel@tonic-gate (void) close(STDIN_FILENO); 28637c478bd9Sstevel@tonic-gate (void) open("/dev/null", O_RDONLY); 28647c478bd9Sstevel@tonic-gate } 28657c478bd9Sstevel@tonic-gate (void) dup2(STDIN_FILENO, STDOUT_FILENO); 28667c478bd9Sstevel@tonic-gate (void) dup2(STDIN_FILENO, STDERR_FILENO); 28677c478bd9Sstevel@tonic-gate 28687c478bd9Sstevel@tonic-gate closefrom(STDERR_FILENO + 1); 28697c478bd9Sstevel@tonic-gate 28707c478bd9Sstevel@tonic-gate method_preexec(); 28717c478bd9Sstevel@tonic-gate 28727c478bd9Sstevel@tonic-gate env = set_smf_env(mthd_ctxt, instance, methods[method].name); 28737c478bd9Sstevel@tonic-gate 28747c478bd9Sstevel@tonic-gate if (env != NULL) { 28757c478bd9Sstevel@tonic-gate do { 28767c478bd9Sstevel@tonic-gate (void) execve(mi->exec_path, args, env); 28777c478bd9Sstevel@tonic-gate } while (errno == EINTR); 28787c478bd9Sstevel@tonic-gate } 28797c478bd9Sstevel@tonic-gate 28807c478bd9Sstevel@tonic-gate serrno = errno; 28817c478bd9Sstevel@tonic-gate /* start up logging again to report the error */ 28827c478bd9Sstevel@tonic-gate msg_init(); 28837c478bd9Sstevel@tonic-gate errno = serrno; 28847c478bd9Sstevel@tonic-gate 28857c478bd9Sstevel@tonic-gate error_msg( 28867c478bd9Sstevel@tonic-gate gettext("Failed to exec %s method of instance %s: %s"), 28877c478bd9Sstevel@tonic-gate methods[method].name, instance->fmri, strerror(errno)); 28887c478bd9Sstevel@tonic-gate 28897c478bd9Sstevel@tonic-gate if ((method == IM_START) && (instance->config->basic->iswait)) { 28907c478bd9Sstevel@tonic-gate /* 28917c478bd9Sstevel@tonic-gate * We couldn't exec the start method for a wait type service. 28927c478bd9Sstevel@tonic-gate * Eat up data from the endpoint, so that hopefully the 28937c478bd9Sstevel@tonic-gate * service's fd won't wake poll up on the next time round 28947c478bd9Sstevel@tonic-gate * event_loop(). This behavior is carried over from the old 28957c478bd9Sstevel@tonic-gate * inetd, and it seems somewhat arbitrary that it isn't 28967c478bd9Sstevel@tonic-gate * also done in the case of fork failures; but I guess 28977c478bd9Sstevel@tonic-gate * it assumes an exec failure is less likely to be the result 28987c478bd9Sstevel@tonic-gate * of a resource shortage, and is thus not worth retrying. 28997c478bd9Sstevel@tonic-gate */ 29007c478bd9Sstevel@tonic-gate consume_wait_data(instance, 0); 29017c478bd9Sstevel@tonic-gate } 29027c478bd9Sstevel@tonic-gate 29037c478bd9Sstevel@tonic-gate exit(IMRET_FAILURE); 29047c478bd9Sstevel@tonic-gate } 29057c478bd9Sstevel@tonic-gate 29067c478bd9Sstevel@tonic-gate static restarter_error_t 29077c478bd9Sstevel@tonic-gate get_method_error_success(instance_method_t method) 29087c478bd9Sstevel@tonic-gate { 29097c478bd9Sstevel@tonic-gate switch (method) { 29107c478bd9Sstevel@tonic-gate case IM_OFFLINE: 29117c478bd9Sstevel@tonic-gate return (RERR_RESTART); 29127c478bd9Sstevel@tonic-gate case IM_ONLINE: 29137c478bd9Sstevel@tonic-gate return (RERR_RESTART); 29147c478bd9Sstevel@tonic-gate case IM_DISABLE: 29157c478bd9Sstevel@tonic-gate return (RERR_RESTART); 29167c478bd9Sstevel@tonic-gate case IM_REFRESH: 29177c478bd9Sstevel@tonic-gate return (RERR_REFRESH); 29187c478bd9Sstevel@tonic-gate case IM_START: 29197c478bd9Sstevel@tonic-gate return (RERR_RESTART); 29207c478bd9Sstevel@tonic-gate } 2921b823d4c7Sdstaff (void) fprintf(stderr, gettext("Internal fatal error in inetd.\n")); 2922b823d4c7Sdstaff 2923b823d4c7Sdstaff abort(); 29247c478bd9Sstevel@tonic-gate /* NOTREACHED */ 29257c478bd9Sstevel@tonic-gate } 29267c478bd9Sstevel@tonic-gate 2927324baee5Sstevep static int 2928324baee5Sstevep smf_kill_process(instance_t *instance, int sig) 2929324baee5Sstevep { 2930324baee5Sstevep rep_val_t *rv; 2931324baee5Sstevep int ret = IMRET_SUCCESS; 2932324baee5Sstevep 2933324baee5Sstevep /* Carry out process assassination */ 2934324baee5Sstevep for (rv = uu_list_first(instance->start_pids); 2935324baee5Sstevep rv != NULL; 2936324baee5Sstevep rv = uu_list_next(instance->start_pids, rv)) { 2937324baee5Sstevep if ((kill((pid_t)rv->val, sig) != 0) && 2938324baee5Sstevep (errno != ESRCH)) { 2939324baee5Sstevep ret = IMRET_FAILURE; 2940324baee5Sstevep error_msg(gettext("Unable to kill " 29417cd7ea0bSrs "start process (%ld) of instance %s: %s"), 29427cd7ea0bSrs rv->val, instance->fmri, strerror(errno)); 2943324baee5Sstevep } 2944324baee5Sstevep } 2945324baee5Sstevep return (ret); 2946324baee5Sstevep } 2947324baee5Sstevep 29487c478bd9Sstevel@tonic-gate /* 29497c478bd9Sstevel@tonic-gate * Runs the specified method of the specified service instance. 29507c478bd9Sstevel@tonic-gate * If the method was never specified, we handle it the same as if the 29517c478bd9Sstevel@tonic-gate * method was called and returned success, carrying on any transition the 29527c478bd9Sstevel@tonic-gate * instance may be in the midst of. 29537c478bd9Sstevel@tonic-gate * If the method isn't executable in its specified profile or an error occurs 29547c478bd9Sstevel@tonic-gate * forking a process to run the method in the function returns -1. 29557c478bd9Sstevel@tonic-gate * If a method binary is successfully executed, the function switches the 29567c478bd9Sstevel@tonic-gate * instance's cur state to the method's associated 'run' state and the next 29577c478bd9Sstevel@tonic-gate * state to the methods associated next state. 29587c478bd9Sstevel@tonic-gate * Returns -1 if there's an error before forking, else 0. 29597c478bd9Sstevel@tonic-gate */ 29607c478bd9Sstevel@tonic-gate int 29617c478bd9Sstevel@tonic-gate run_method(instance_t *instance, instance_method_t method, 29627c478bd9Sstevel@tonic-gate const proto_info_t *start_info) 29637c478bd9Sstevel@tonic-gate { 29647c478bd9Sstevel@tonic-gate pid_t child_pid; 29657c478bd9Sstevel@tonic-gate method_info_t *mi; 29667c478bd9Sstevel@tonic-gate struct method_context *mthd_ctxt = NULL; 29677c478bd9Sstevel@tonic-gate const char *errstr; 2968324baee5Sstevep int sig = 0; 29697c478bd9Sstevel@tonic-gate int ret; 29707c478bd9Sstevel@tonic-gate instance_cfg_t *cfg = instance->config; 29717c478bd9Sstevel@tonic-gate ctid_t cid; 29727c478bd9Sstevel@tonic-gate boolean_t trans_failure = B_TRUE; 29737c478bd9Sstevel@tonic-gate int serrno; 29747c478bd9Sstevel@tonic-gate 29757c478bd9Sstevel@tonic-gate debug_msg("Entering run_method, instance: %s, method: %s", 29767c478bd9Sstevel@tonic-gate instance->fmri, methods[method].name); 29777c478bd9Sstevel@tonic-gate 29787c478bd9Sstevel@tonic-gate /* 29797c478bd9Sstevel@tonic-gate * Don't bother updating the instance's state for the start method 29807c478bd9Sstevel@tonic-gate * as there isn't a separate start method state. 29817c478bd9Sstevel@tonic-gate */ 29827c478bd9Sstevel@tonic-gate if (method != IM_START) 29837c478bd9Sstevel@tonic-gate update_instance_states(instance, get_method_state(method), 29847c478bd9Sstevel@tonic-gate methods[method].dst_state, 29857c478bd9Sstevel@tonic-gate get_method_error_success(method)); 29867c478bd9Sstevel@tonic-gate 29877c478bd9Sstevel@tonic-gate if ((mi = cfg->methods[method]) == NULL) { 29887c478bd9Sstevel@tonic-gate /* 2989324baee5Sstevep * If the absent method is IM_OFFLINE, default action needs 2990324baee5Sstevep * to be taken to avoid lingering processes which can prevent 2991324baee5Sstevep * the upcoming rebinding from happening. 29927c478bd9Sstevel@tonic-gate */ 2993324baee5Sstevep if ((method == IM_OFFLINE) && instance->config->basic->iswait) { 2994324baee5Sstevep warn_msg(gettext("inetd_offline method for instance %s " 2995324baee5Sstevep "is unspecified. Taking default action: kill."), 2996324baee5Sstevep instance->fmri); 2997324baee5Sstevep (void) str2sig("TERM", &sig); 2998324baee5Sstevep ret = smf_kill_process(instance, sig); 2999324baee5Sstevep process_non_start_term(instance, ret); 3000324baee5Sstevep return (0); 3001324baee5Sstevep } else { 3002324baee5Sstevep process_non_start_term(instance, IMRET_SUCCESS); 3003324baee5Sstevep return (0); 3004324baee5Sstevep } 30057c478bd9Sstevel@tonic-gate } 30067c478bd9Sstevel@tonic-gate 30077c478bd9Sstevel@tonic-gate /* Handle special method tokens, not allowed on start */ 30087c478bd9Sstevel@tonic-gate if (method != IM_START) { 30097c478bd9Sstevel@tonic-gate if (restarter_is_null_method(mi->exec_path)) { 30107c478bd9Sstevel@tonic-gate /* :true means nothing should be done */ 30117c478bd9Sstevel@tonic-gate process_non_start_term(instance, IMRET_SUCCESS); 30127c478bd9Sstevel@tonic-gate return (0); 30137c478bd9Sstevel@tonic-gate } 30147c478bd9Sstevel@tonic-gate 30157c478bd9Sstevel@tonic-gate if ((sig = restarter_is_kill_method(mi->exec_path)) >= 0) { 30167c478bd9Sstevel@tonic-gate /* Carry out contract assassination */ 301794501b61Sskamm ret = iterate_repository_contracts(instance, sig); 30187c478bd9Sstevel@tonic-gate /* ENOENT means we didn't find any contracts */ 30197c478bd9Sstevel@tonic-gate if (ret != 0 && ret != ENOENT) { 30207c478bd9Sstevel@tonic-gate error_msg(gettext("Failed to send signal %d " 30217c478bd9Sstevel@tonic-gate "to contracts of instance %s: %s"), sig, 30227c478bd9Sstevel@tonic-gate instance->fmri, strerror(ret)); 30237c478bd9Sstevel@tonic-gate goto prefork_failure; 30247c478bd9Sstevel@tonic-gate } else { 30257c478bd9Sstevel@tonic-gate process_non_start_term(instance, IMRET_SUCCESS); 30267c478bd9Sstevel@tonic-gate return (0); 30277c478bd9Sstevel@tonic-gate } 30287c478bd9Sstevel@tonic-gate } 30297c478bd9Sstevel@tonic-gate 30307c478bd9Sstevel@tonic-gate if ((sig = restarter_is_kill_proc_method(mi->exec_path)) >= 0) { 3031324baee5Sstevep ret = smf_kill_process(instance, sig); 30327c478bd9Sstevel@tonic-gate process_non_start_term(instance, ret); 30337c478bd9Sstevel@tonic-gate return (0); 30347c478bd9Sstevel@tonic-gate } 30357c478bd9Sstevel@tonic-gate } 30367c478bd9Sstevel@tonic-gate 30377c478bd9Sstevel@tonic-gate /* 30387c478bd9Sstevel@tonic-gate * Get the associated method context before the fork so we can 30397c478bd9Sstevel@tonic-gate * modify the instances state if things go wrong. 30407c478bd9Sstevel@tonic-gate */ 30417c478bd9Sstevel@tonic-gate if ((mthd_ctxt = read_method_context(instance->fmri, 30427c478bd9Sstevel@tonic-gate methods[method].name, mi->exec_path, &errstr)) == NULL) { 30437c478bd9Sstevel@tonic-gate error_msg(gettext("Failed to retrieve method context for the " 30447c478bd9Sstevel@tonic-gate "%s method of instance %s: %s"), methods[method].name, 30457c478bd9Sstevel@tonic-gate instance->fmri, errstr); 30467c478bd9Sstevel@tonic-gate goto prefork_failure; 30477c478bd9Sstevel@tonic-gate } 30487c478bd9Sstevel@tonic-gate 30497c478bd9Sstevel@tonic-gate /* 30507c478bd9Sstevel@tonic-gate * Perform some basic checks before we fork to limit the possibility 30517c478bd9Sstevel@tonic-gate * of exec failures, so we can modify the instance state if necessary. 30527c478bd9Sstevel@tonic-gate */ 30537c478bd9Sstevel@tonic-gate if (!passes_basic_exec_checks(instance->fmri, methods[method].name, 30547c478bd9Sstevel@tonic-gate mi->exec_path)) { 30557c478bd9Sstevel@tonic-gate trans_failure = B_FALSE; 30567c478bd9Sstevel@tonic-gate goto prefork_failure; 30577c478bd9Sstevel@tonic-gate } 30587c478bd9Sstevel@tonic-gate 30597c478bd9Sstevel@tonic-gate if (contract_prefork() == -1) 30607c478bd9Sstevel@tonic-gate goto prefork_failure; 30617c478bd9Sstevel@tonic-gate child_pid = fork(); 30627c478bd9Sstevel@tonic-gate serrno = errno; 30637c478bd9Sstevel@tonic-gate contract_postfork(); 30647c478bd9Sstevel@tonic-gate 30657c478bd9Sstevel@tonic-gate switch (child_pid) { 30667c478bd9Sstevel@tonic-gate case -1: 30677c478bd9Sstevel@tonic-gate error_msg(gettext( 30687c478bd9Sstevel@tonic-gate "Unable to fork %s method of instance %s: %s"), 30697c478bd9Sstevel@tonic-gate methods[method].name, instance->fmri, strerror(serrno)); 30707c478bd9Sstevel@tonic-gate if ((serrno != EAGAIN) && (serrno != ENOMEM)) 30717c478bd9Sstevel@tonic-gate trans_failure = B_FALSE; 30727c478bd9Sstevel@tonic-gate goto prefork_failure; 30737c478bd9Sstevel@tonic-gate case 0: /* child */ 30747c478bd9Sstevel@tonic-gate exec_method(instance, method, mi, mthd_ctxt, start_info); 3075b823d4c7Sdstaff /* NOTREACHED */ 30767c478bd9Sstevel@tonic-gate default: /* parent */ 30777c478bd9Sstevel@tonic-gate restarter_free_method_context(mthd_ctxt); 30787c478bd9Sstevel@tonic-gate mthd_ctxt = NULL; 30797c478bd9Sstevel@tonic-gate 30807c478bd9Sstevel@tonic-gate if (get_latest_contract(&cid) < 0) 30817c478bd9Sstevel@tonic-gate cid = -1; 30827c478bd9Sstevel@tonic-gate 30837c478bd9Sstevel@tonic-gate /* 30847c478bd9Sstevel@tonic-gate * Register this method so its termination is noticed and 30857c478bd9Sstevel@tonic-gate * the state transition this method participates in is 30867c478bd9Sstevel@tonic-gate * continued. 30877c478bd9Sstevel@tonic-gate */ 30887c478bd9Sstevel@tonic-gate if (register_method(instance, child_pid, cid, method) != 0) { 30897c478bd9Sstevel@tonic-gate /* 30907c478bd9Sstevel@tonic-gate * Since we will never find out about the termination 30917c478bd9Sstevel@tonic-gate * of this method, if it's a non-start method treat 30927c478bd9Sstevel@tonic-gate * is as a failure so we don't block restarter event 30937c478bd9Sstevel@tonic-gate * processing on it whilst it languishes in a method 30947c478bd9Sstevel@tonic-gate * running state. 30957c478bd9Sstevel@tonic-gate */ 30967c478bd9Sstevel@tonic-gate error_msg(gettext("Failed to monitor status of " 30977c478bd9Sstevel@tonic-gate "%s method of instance %s"), methods[method].name, 30987c478bd9Sstevel@tonic-gate instance->fmri); 30997c478bd9Sstevel@tonic-gate if (method != IM_START) 31007c478bd9Sstevel@tonic-gate process_non_start_term(instance, IMRET_FAILURE); 31017c478bd9Sstevel@tonic-gate } 31027c478bd9Sstevel@tonic-gate 31037c478bd9Sstevel@tonic-gate add_method_ids(instance, child_pid, cid, method); 31047c478bd9Sstevel@tonic-gate 31057c478bd9Sstevel@tonic-gate /* do tcp tracing for those nowait instances that request it */ 31067c478bd9Sstevel@tonic-gate if ((method == IM_START) && cfg->basic->do_tcp_trace && 31077c478bd9Sstevel@tonic-gate !cfg->basic->iswait) { 31087c478bd9Sstevel@tonic-gate char buf[INET6_ADDRSTRLEN]; 31097c478bd9Sstevel@tonic-gate 31107c478bd9Sstevel@tonic-gate syslog(LOG_NOTICE, "%s[%d] from %s %d", 31117c478bd9Sstevel@tonic-gate cfg->basic->svc_name, child_pid, 31127c478bd9Sstevel@tonic-gate inet_ntop_native(instance->remote_addr.ss_family, 31137c478bd9Sstevel@tonic-gate SS_SINADDR(instance->remote_addr), buf, 31147c478bd9Sstevel@tonic-gate sizeof (buf)), 31157c478bd9Sstevel@tonic-gate ntohs(SS_PORT(instance->remote_addr))); 31167c478bd9Sstevel@tonic-gate } 31177c478bd9Sstevel@tonic-gate } 31187c478bd9Sstevel@tonic-gate 31197c478bd9Sstevel@tonic-gate return (0); 31207c478bd9Sstevel@tonic-gate 31217c478bd9Sstevel@tonic-gate prefork_failure: 31227c478bd9Sstevel@tonic-gate if (mthd_ctxt != NULL) { 31237c478bd9Sstevel@tonic-gate restarter_free_method_context(mthd_ctxt); 31247c478bd9Sstevel@tonic-gate mthd_ctxt = NULL; 31257c478bd9Sstevel@tonic-gate } 31267c478bd9Sstevel@tonic-gate 31277c478bd9Sstevel@tonic-gate if (method == IM_START) { 31287c478bd9Sstevel@tonic-gate /* 31297c478bd9Sstevel@tonic-gate * Only place a start method in maintenance if we're sure 31307c478bd9Sstevel@tonic-gate * that the failure was non-transient. 31317c478bd9Sstevel@tonic-gate */ 31327c478bd9Sstevel@tonic-gate if (!trans_failure) { 31337c478bd9Sstevel@tonic-gate destroy_bound_fds(instance); 31347c478bd9Sstevel@tonic-gate update_state(instance, IIS_MAINTENANCE, RERR_FAULT); 31357c478bd9Sstevel@tonic-gate } 31367c478bd9Sstevel@tonic-gate } else { 31377c478bd9Sstevel@tonic-gate /* treat the failure as if the method ran and failed */ 31387c478bd9Sstevel@tonic-gate process_non_start_term(instance, IMRET_FAILURE); 31397c478bd9Sstevel@tonic-gate } 31407c478bd9Sstevel@tonic-gate 31417c478bd9Sstevel@tonic-gate return (-1); 31427c478bd9Sstevel@tonic-gate } 31437c478bd9Sstevel@tonic-gate 31447c478bd9Sstevel@tonic-gate static int 31457c478bd9Sstevel@tonic-gate accept_connection(instance_t *instance, proto_info_t *pi) 31467c478bd9Sstevel@tonic-gate { 31477c478bd9Sstevel@tonic-gate int fd; 31487c478bd9Sstevel@tonic-gate socklen_t size; 31497c478bd9Sstevel@tonic-gate 31507c478bd9Sstevel@tonic-gate debug_msg("Entering accept_connection"); 31517c478bd9Sstevel@tonic-gate 31527c478bd9Sstevel@tonic-gate if (instance->config->basic->istlx) { 31537c478bd9Sstevel@tonic-gate fd = tlx_accept(instance->fmri, (tlx_info_t *)pi, 31547c478bd9Sstevel@tonic-gate &(instance->remote_addr)); 31557c478bd9Sstevel@tonic-gate } else { 31567c478bd9Sstevel@tonic-gate size = sizeof (instance->remote_addr); 31577c478bd9Sstevel@tonic-gate fd = accept(pi->listen_fd, 31587c478bd9Sstevel@tonic-gate (struct sockaddr *)&(instance->remote_addr), &size); 31597c478bd9Sstevel@tonic-gate if (fd < 0) 31607c478bd9Sstevel@tonic-gate error_msg("accept: %s", strerror(errno)); 31617c478bd9Sstevel@tonic-gate } 31627c478bd9Sstevel@tonic-gate 31637c478bd9Sstevel@tonic-gate return (fd); 31647c478bd9Sstevel@tonic-gate } 31657c478bd9Sstevel@tonic-gate 31667c478bd9Sstevel@tonic-gate /* 31677c478bd9Sstevel@tonic-gate * Handle an incoming connection request for a nowait service. 31687c478bd9Sstevel@tonic-gate * This involves accepting the incoming connection on a new fd. Connection 31697c478bd9Sstevel@tonic-gate * rate checks are then performed, transitioning the service to the 31707c478bd9Sstevel@tonic-gate * conrate offline state if these fail. Otherwise, the service's start method 31717c478bd9Sstevel@tonic-gate * is run (performing TCP wrappers checks if applicable as we do), and on 31727c478bd9Sstevel@tonic-gate * success concurrent copies checking is done, transitioning the service to the 31737c478bd9Sstevel@tonic-gate * copies offline state if this fails. 31747c478bd9Sstevel@tonic-gate */ 31757c478bd9Sstevel@tonic-gate static void 31767c478bd9Sstevel@tonic-gate process_nowait_request(instance_t *instance, proto_info_t *pi) 31777c478bd9Sstevel@tonic-gate { 31787c478bd9Sstevel@tonic-gate basic_cfg_t *cfg = instance->config->basic; 31797c478bd9Sstevel@tonic-gate int ret; 31807c478bd9Sstevel@tonic-gate adt_event_data_t *ae; 31817c478bd9Sstevel@tonic-gate char buf[BUFSIZ]; 31827c478bd9Sstevel@tonic-gate 31837c478bd9Sstevel@tonic-gate debug_msg("Entering process_nowait_req"); 31847c478bd9Sstevel@tonic-gate 31857c478bd9Sstevel@tonic-gate /* accept nowait service connections on a new fd */ 31867c478bd9Sstevel@tonic-gate if ((instance->conn_fd = accept_connection(instance, pi)) == -1) { 31877c478bd9Sstevel@tonic-gate /* 31887c478bd9Sstevel@tonic-gate * Failed accept. Return and allow the event loop to initiate 31897c478bd9Sstevel@tonic-gate * another attempt later if the request is still present. 31907c478bd9Sstevel@tonic-gate */ 31917c478bd9Sstevel@tonic-gate return; 31927c478bd9Sstevel@tonic-gate } 31937c478bd9Sstevel@tonic-gate 31947c478bd9Sstevel@tonic-gate /* 31957c478bd9Sstevel@tonic-gate * Limit connection rate of nowait services. If either conn_rate_max 31967c478bd9Sstevel@tonic-gate * or conn_rate_offline are <= 0, no connection rate limit checking 31977c478bd9Sstevel@tonic-gate * is done. If the configured rate is exceeded, the instance is taken 31987c478bd9Sstevel@tonic-gate * to the connrate_offline state and a timer scheduled to try and 31997c478bd9Sstevel@tonic-gate * bring the instance back online after the configured offline time. 32007c478bd9Sstevel@tonic-gate */ 32017c478bd9Sstevel@tonic-gate if ((cfg->conn_rate_max > 0) && (cfg->conn_rate_offline > 0)) { 32027c478bd9Sstevel@tonic-gate if (instance->conn_rate_count++ == 0) { 32037c478bd9Sstevel@tonic-gate instance->conn_rate_start = time(NULL); 32047c478bd9Sstevel@tonic-gate } else if (instance->conn_rate_count > 32057c478bd9Sstevel@tonic-gate cfg->conn_rate_max) { 32067c478bd9Sstevel@tonic-gate time_t now = time(NULL); 32077c478bd9Sstevel@tonic-gate 32087c478bd9Sstevel@tonic-gate if ((now - instance->conn_rate_start) > 1) { 32097c478bd9Sstevel@tonic-gate instance->conn_rate_start = now; 32107c478bd9Sstevel@tonic-gate instance->conn_rate_count = 1; 32117c478bd9Sstevel@tonic-gate } else { 32127c478bd9Sstevel@tonic-gate /* Generate audit record */ 32137c478bd9Sstevel@tonic-gate if ((ae = adt_alloc_event(audit_handle, 32147c478bd9Sstevel@tonic-gate ADT_inetd_ratelimit)) == NULL) { 32157c478bd9Sstevel@tonic-gate error_msg(gettext("Unable to allocate " 32167c478bd9Sstevel@tonic-gate "rate limit audit event")); 32177c478bd9Sstevel@tonic-gate } else { 32187c478bd9Sstevel@tonic-gate adt_inetd_ratelimit_t *rl = 32197c478bd9Sstevel@tonic-gate &ae->adt_inetd_ratelimit; 32207c478bd9Sstevel@tonic-gate /* 32217c478bd9Sstevel@tonic-gate * The inetd_ratelimit audit 32227c478bd9Sstevel@tonic-gate * record consists of: 32237c478bd9Sstevel@tonic-gate * Service name 32247c478bd9Sstevel@tonic-gate * Connection rate limit 32257c478bd9Sstevel@tonic-gate */ 32267c478bd9Sstevel@tonic-gate rl->service_name = cfg->svc_name; 32277c478bd9Sstevel@tonic-gate (void) snprintf(buf, sizeof (buf), 32287c478bd9Sstevel@tonic-gate "limit=%lld", cfg->conn_rate_max); 32297c478bd9Sstevel@tonic-gate rl->limit = buf; 32307c478bd9Sstevel@tonic-gate (void) adt_put_event(ae, ADT_SUCCESS, 32317c478bd9Sstevel@tonic-gate ADT_SUCCESS); 32327c478bd9Sstevel@tonic-gate adt_free_event(ae); 32337c478bd9Sstevel@tonic-gate } 32347c478bd9Sstevel@tonic-gate 32357c478bd9Sstevel@tonic-gate error_msg(gettext( 32367c478bd9Sstevel@tonic-gate "Instance %s has exceeded its configured " 32377c478bd9Sstevel@tonic-gate "connection rate, additional connections " 32387c478bd9Sstevel@tonic-gate "will not be accepted for %d seconds"), 32397c478bd9Sstevel@tonic-gate instance->fmri, cfg->conn_rate_offline); 32407c478bd9Sstevel@tonic-gate 32417c478bd9Sstevel@tonic-gate close_net_fd(instance, instance->conn_fd); 32427c478bd9Sstevel@tonic-gate instance->conn_fd = -1; 32437c478bd9Sstevel@tonic-gate 32447c478bd9Sstevel@tonic-gate destroy_bound_fds(instance); 32457c478bd9Sstevel@tonic-gate 32467c478bd9Sstevel@tonic-gate instance->conn_rate_count = 0; 32477c478bd9Sstevel@tonic-gate 32487c478bd9Sstevel@tonic-gate instance->conn_rate_exceeded = B_TRUE; 32497c478bd9Sstevel@tonic-gate (void) run_method(instance, IM_OFFLINE, NULL); 32507c478bd9Sstevel@tonic-gate 32517c478bd9Sstevel@tonic-gate return; 32527c478bd9Sstevel@tonic-gate } 32537c478bd9Sstevel@tonic-gate } 32547c478bd9Sstevel@tonic-gate } 32557c478bd9Sstevel@tonic-gate 32567c478bd9Sstevel@tonic-gate ret = run_method(instance, IM_START, pi); 32577c478bd9Sstevel@tonic-gate 32587c478bd9Sstevel@tonic-gate close_net_fd(instance, instance->conn_fd); 32597c478bd9Sstevel@tonic-gate instance->conn_fd = -1; 32607c478bd9Sstevel@tonic-gate 32617c478bd9Sstevel@tonic-gate if (ret == -1) /* the method wasn't forked */ 32627c478bd9Sstevel@tonic-gate return; 32637c478bd9Sstevel@tonic-gate 32647c478bd9Sstevel@tonic-gate instance->copies++; 32657c478bd9Sstevel@tonic-gate 32667c478bd9Sstevel@tonic-gate /* 32677c478bd9Sstevel@tonic-gate * Limit concurrent connections of nowait services. 32687c478bd9Sstevel@tonic-gate */ 32697c478bd9Sstevel@tonic-gate if (copies_limit_exceeded(instance)) { 32707c478bd9Sstevel@tonic-gate /* Generate audit record */ 32717c478bd9Sstevel@tonic-gate if ((ae = adt_alloc_event(audit_handle, ADT_inetd_copylimit)) 32727c478bd9Sstevel@tonic-gate == NULL) { 32737c478bd9Sstevel@tonic-gate error_msg(gettext("Unable to allocate copy limit " 32747c478bd9Sstevel@tonic-gate "audit event")); 32757c478bd9Sstevel@tonic-gate } else { 32767c478bd9Sstevel@tonic-gate /* 32777c478bd9Sstevel@tonic-gate * The inetd_copylimit audit record consists of: 32787c478bd9Sstevel@tonic-gate * Service name 32797c478bd9Sstevel@tonic-gate * Copy limit 32807c478bd9Sstevel@tonic-gate */ 32817c478bd9Sstevel@tonic-gate ae->adt_inetd_copylimit.service_name = cfg->svc_name; 32827c478bd9Sstevel@tonic-gate (void) snprintf(buf, sizeof (buf), "limit=%lld", 32837c478bd9Sstevel@tonic-gate cfg->max_copies); 32847c478bd9Sstevel@tonic-gate ae->adt_inetd_copylimit.limit = buf; 32857c478bd9Sstevel@tonic-gate (void) adt_put_event(ae, ADT_SUCCESS, ADT_SUCCESS); 32867c478bd9Sstevel@tonic-gate adt_free_event(ae); 32877c478bd9Sstevel@tonic-gate } 32887c478bd9Sstevel@tonic-gate 32897c478bd9Sstevel@tonic-gate warn_msg(gettext("Instance %s has reached its maximum " 32907c478bd9Sstevel@tonic-gate "configured copies, no new connections will be accepted"), 32917c478bd9Sstevel@tonic-gate instance->fmri); 32927c478bd9Sstevel@tonic-gate destroy_bound_fds(instance); 32937c478bd9Sstevel@tonic-gate (void) run_method(instance, IM_OFFLINE, NULL); 32947c478bd9Sstevel@tonic-gate } 32957c478bd9Sstevel@tonic-gate } 32967c478bd9Sstevel@tonic-gate 32977c478bd9Sstevel@tonic-gate /* 32987c478bd9Sstevel@tonic-gate * Handle an incoming request for a wait type service. 32997c478bd9Sstevel@tonic-gate * Failure rate checking is done first, taking the service to the maintenance 33007c478bd9Sstevel@tonic-gate * state if the checks fail. Following this, the service's start method is run, 33017c478bd9Sstevel@tonic-gate * and on success, we stop listening for new requests for this service. 33027c478bd9Sstevel@tonic-gate */ 33037c478bd9Sstevel@tonic-gate static void 33047c478bd9Sstevel@tonic-gate process_wait_request(instance_t *instance, const proto_info_t *pi) 33057c478bd9Sstevel@tonic-gate { 33067c478bd9Sstevel@tonic-gate basic_cfg_t *cfg = instance->config->basic; 33077c478bd9Sstevel@tonic-gate int ret; 33087c478bd9Sstevel@tonic-gate adt_event_data_t *ae; 33097c478bd9Sstevel@tonic-gate char buf[BUFSIZ]; 33107c478bd9Sstevel@tonic-gate 33117c478bd9Sstevel@tonic-gate debug_msg("Entering process_wait_request"); 33127c478bd9Sstevel@tonic-gate 33137c478bd9Sstevel@tonic-gate instance->conn_fd = pi->listen_fd; 33147c478bd9Sstevel@tonic-gate 33157c478bd9Sstevel@tonic-gate /* 33167c478bd9Sstevel@tonic-gate * Detect broken servers and transition them to maintenance. If a 33177c478bd9Sstevel@tonic-gate * wait type service exits without accepting the connection or 33187c478bd9Sstevel@tonic-gate * consuming (reading) the datagram, that service's descriptor will 33197c478bd9Sstevel@tonic-gate * select readable again, and inetd will fork another instance of 33207c478bd9Sstevel@tonic-gate * the server. If either wait_fail_cnt or wait_fail_interval are <= 0, 33217c478bd9Sstevel@tonic-gate * no failure rate detection is done. 33227c478bd9Sstevel@tonic-gate */ 33237c478bd9Sstevel@tonic-gate if ((cfg->wait_fail_cnt > 0) && (cfg->wait_fail_interval > 0)) { 33247c478bd9Sstevel@tonic-gate if (instance->fail_rate_count++ == 0) { 33257c478bd9Sstevel@tonic-gate instance->fail_rate_start = time(NULL); 33267c478bd9Sstevel@tonic-gate } else if (instance->fail_rate_count > cfg->wait_fail_cnt) { 33277c478bd9Sstevel@tonic-gate time_t now = time(NULL); 33287c478bd9Sstevel@tonic-gate 33297c478bd9Sstevel@tonic-gate if ((now - instance->fail_rate_start) > 33307c478bd9Sstevel@tonic-gate cfg->wait_fail_interval) { 33317c478bd9Sstevel@tonic-gate instance->fail_rate_start = now; 33327c478bd9Sstevel@tonic-gate instance->fail_rate_count = 1; 33337c478bd9Sstevel@tonic-gate } else { 33347c478bd9Sstevel@tonic-gate /* Generate audit record */ 33357c478bd9Sstevel@tonic-gate if ((ae = adt_alloc_event(audit_handle, 33367c478bd9Sstevel@tonic-gate ADT_inetd_failrate)) == NULL) { 33377c478bd9Sstevel@tonic-gate error_msg(gettext("Unable to allocate " 33387c478bd9Sstevel@tonic-gate "failure rate audit event")); 33397c478bd9Sstevel@tonic-gate } else { 33407c478bd9Sstevel@tonic-gate adt_inetd_failrate_t *fr = 33417c478bd9Sstevel@tonic-gate &ae->adt_inetd_failrate; 33427c478bd9Sstevel@tonic-gate /* 33437c478bd9Sstevel@tonic-gate * The inetd_failrate audit record 33447c478bd9Sstevel@tonic-gate * consists of: 33457c478bd9Sstevel@tonic-gate * Service name 33467c478bd9Sstevel@tonic-gate * Failure rate 33477c478bd9Sstevel@tonic-gate * Interval 33487c478bd9Sstevel@tonic-gate * Last two are expressed as k=v pairs 33497c478bd9Sstevel@tonic-gate * in the values field. 33507c478bd9Sstevel@tonic-gate */ 33517c478bd9Sstevel@tonic-gate fr->service_name = cfg->svc_name; 33527c478bd9Sstevel@tonic-gate (void) snprintf(buf, sizeof (buf), 33537c478bd9Sstevel@tonic-gate "limit=%lld,interval=%d", 33547c478bd9Sstevel@tonic-gate cfg->wait_fail_cnt, 33557c478bd9Sstevel@tonic-gate cfg->wait_fail_interval); 33567c478bd9Sstevel@tonic-gate fr->values = buf; 33577c478bd9Sstevel@tonic-gate (void) adt_put_event(ae, ADT_SUCCESS, 33587c478bd9Sstevel@tonic-gate ADT_SUCCESS); 33597c478bd9Sstevel@tonic-gate adt_free_event(ae); 33607c478bd9Sstevel@tonic-gate } 33617c478bd9Sstevel@tonic-gate 33627c478bd9Sstevel@tonic-gate error_msg(gettext( 33637c478bd9Sstevel@tonic-gate "Instance %s has exceeded its configured " 33647c478bd9Sstevel@tonic-gate "failure rate, transitioning to " 33657c478bd9Sstevel@tonic-gate "maintenance"), instance->fmri); 33667c478bd9Sstevel@tonic-gate instance->fail_rate_count = 0; 33677c478bd9Sstevel@tonic-gate 33687c478bd9Sstevel@tonic-gate destroy_bound_fds(instance); 33697c478bd9Sstevel@tonic-gate 33707c478bd9Sstevel@tonic-gate instance->maintenance_req = B_TRUE; 33717c478bd9Sstevel@tonic-gate (void) run_method(instance, IM_OFFLINE, NULL); 33727c478bd9Sstevel@tonic-gate return; 33737c478bd9Sstevel@tonic-gate } 33747c478bd9Sstevel@tonic-gate } 33757c478bd9Sstevel@tonic-gate } 33767c478bd9Sstevel@tonic-gate 33777c478bd9Sstevel@tonic-gate ret = run_method(instance, IM_START, pi); 33787c478bd9Sstevel@tonic-gate 33797c478bd9Sstevel@tonic-gate instance->conn_fd = -1; 33807c478bd9Sstevel@tonic-gate 33817c478bd9Sstevel@tonic-gate if (ret == 0) { 33827c478bd9Sstevel@tonic-gate /* 33837c478bd9Sstevel@tonic-gate * Stop listening for connections now we've fired off the 33847c478bd9Sstevel@tonic-gate * server for a wait type instance. 33857c478bd9Sstevel@tonic-gate */ 33867c478bd9Sstevel@tonic-gate (void) poll_bound_fds(instance, B_FALSE); 33877c478bd9Sstevel@tonic-gate } 33887c478bd9Sstevel@tonic-gate } 33897c478bd9Sstevel@tonic-gate 33907c478bd9Sstevel@tonic-gate /* 33917c478bd9Sstevel@tonic-gate * Process any networks requests for each proto for each instance. 33927c478bd9Sstevel@tonic-gate */ 33937c478bd9Sstevel@tonic-gate void 33947c478bd9Sstevel@tonic-gate process_network_events(void) 33957c478bd9Sstevel@tonic-gate { 33967c478bd9Sstevel@tonic-gate instance_t *instance; 33977c478bd9Sstevel@tonic-gate 33987c478bd9Sstevel@tonic-gate debug_msg("Entering process_network_events"); 33997c478bd9Sstevel@tonic-gate 34007c478bd9Sstevel@tonic-gate for (instance = uu_list_first(instance_list); instance != NULL; 34017c478bd9Sstevel@tonic-gate instance = uu_list_next(instance_list, instance)) { 34027c478bd9Sstevel@tonic-gate basic_cfg_t *cfg; 34037c478bd9Sstevel@tonic-gate proto_info_t *pi; 34047c478bd9Sstevel@tonic-gate 34057c478bd9Sstevel@tonic-gate /* 34067c478bd9Sstevel@tonic-gate * Ignore instances in states that definitely don't have any 34077c478bd9Sstevel@tonic-gate * listening fds. 34087c478bd9Sstevel@tonic-gate */ 34097c478bd9Sstevel@tonic-gate switch (instance->cur_istate) { 34107c478bd9Sstevel@tonic-gate case IIS_ONLINE: 34117c478bd9Sstevel@tonic-gate case IIS_DEGRADED: 34127c478bd9Sstevel@tonic-gate case IIS_IN_REFRESH_METHOD: 34137c478bd9Sstevel@tonic-gate break; 34147c478bd9Sstevel@tonic-gate default: 34157c478bd9Sstevel@tonic-gate continue; 34167c478bd9Sstevel@tonic-gate } 34177c478bd9Sstevel@tonic-gate 34187c478bd9Sstevel@tonic-gate cfg = instance->config->basic; 34197c478bd9Sstevel@tonic-gate 34207c478bd9Sstevel@tonic-gate for (pi = uu_list_first(cfg->proto_list); pi != NULL; 34217c478bd9Sstevel@tonic-gate pi = uu_list_next(cfg->proto_list, pi)) { 34227c478bd9Sstevel@tonic-gate if ((pi->listen_fd != -1) && 34237c478bd9Sstevel@tonic-gate isset_pollfd(pi->listen_fd)) { 34247c478bd9Sstevel@tonic-gate if (cfg->iswait) { 34257c478bd9Sstevel@tonic-gate process_wait_request(instance, pi); 34267c478bd9Sstevel@tonic-gate } else { 34277c478bd9Sstevel@tonic-gate process_nowait_request(instance, pi); 34287c478bd9Sstevel@tonic-gate } 34297c478bd9Sstevel@tonic-gate } 34307c478bd9Sstevel@tonic-gate } 34317c478bd9Sstevel@tonic-gate } 34327c478bd9Sstevel@tonic-gate } 34337c478bd9Sstevel@tonic-gate 34347c478bd9Sstevel@tonic-gate /* ARGSUSED0 */ 34357c478bd9Sstevel@tonic-gate static void 34367c478bd9Sstevel@tonic-gate sigterm_handler(int sig) 34377c478bd9Sstevel@tonic-gate { 34387c478bd9Sstevel@tonic-gate debug_msg("Entering sigterm_handler"); 34397c478bd9Sstevel@tonic-gate 34407c478bd9Sstevel@tonic-gate got_sigterm = B_TRUE; 34417c478bd9Sstevel@tonic-gate } 34427c478bd9Sstevel@tonic-gate 34437c478bd9Sstevel@tonic-gate /* ARGSUSED0 */ 34447c478bd9Sstevel@tonic-gate static void 34457c478bd9Sstevel@tonic-gate sighup_handler(int sig) 34467c478bd9Sstevel@tonic-gate { 34477c478bd9Sstevel@tonic-gate debug_msg("Entering sighup_handler"); 34487c478bd9Sstevel@tonic-gate 34497c478bd9Sstevel@tonic-gate refresh_inetd_requested = B_TRUE; 34507c478bd9Sstevel@tonic-gate } 34517c478bd9Sstevel@tonic-gate 34527c478bd9Sstevel@tonic-gate /* 34537c478bd9Sstevel@tonic-gate * inetd's major work loop. This function sits in poll waiting for events 34547c478bd9Sstevel@tonic-gate * to occur, processing them when they do. The possible events are 34557c478bd9Sstevel@tonic-gate * master restarter requests, expired timer queue timers, stop/refresh signal 34567c478bd9Sstevel@tonic-gate * requests, contract events indicating process termination, stop/refresh 34577c478bd9Sstevel@tonic-gate * requests originating from one of the stop/refresh inetd processes and 34587c478bd9Sstevel@tonic-gate * network events. 34597c478bd9Sstevel@tonic-gate * The loop is exited when a stop request is received and processed, and 34607c478bd9Sstevel@tonic-gate * all the instances have reached a suitable 'stopping' state. 34617c478bd9Sstevel@tonic-gate */ 34627c478bd9Sstevel@tonic-gate static void 34637c478bd9Sstevel@tonic-gate event_loop(void) 34647c478bd9Sstevel@tonic-gate { 34657c478bd9Sstevel@tonic-gate instance_t *instance; 34667c478bd9Sstevel@tonic-gate int timeout; 34677c478bd9Sstevel@tonic-gate 34687c478bd9Sstevel@tonic-gate debug_msg("Entering event_loop"); 34697c478bd9Sstevel@tonic-gate 34707c478bd9Sstevel@tonic-gate for (;;) { 34717c478bd9Sstevel@tonic-gate int pret = -1; 34727c478bd9Sstevel@tonic-gate 34737c478bd9Sstevel@tonic-gate timeout = iu_earliest_timer(timer_queue); 34747c478bd9Sstevel@tonic-gate 34757c478bd9Sstevel@tonic-gate debug_msg("Doing signal check/poll"); 34767c478bd9Sstevel@tonic-gate if (!got_sigterm && !refresh_inetd_requested) { 34777c478bd9Sstevel@tonic-gate pret = poll(poll_fds, num_pollfds, timeout); 34787c478bd9Sstevel@tonic-gate if ((pret == -1) && (errno != EINTR)) { 34797c478bd9Sstevel@tonic-gate error_msg(gettext("poll failure: %s"), 34807c478bd9Sstevel@tonic-gate strerror(errno)); 34817c478bd9Sstevel@tonic-gate continue; 34827c478bd9Sstevel@tonic-gate } 34837c478bd9Sstevel@tonic-gate debug_msg("Exiting poll, returned: %d", pret); 34847c478bd9Sstevel@tonic-gate } 34857c478bd9Sstevel@tonic-gate 34867c478bd9Sstevel@tonic-gate if (got_sigterm) { 34877c478bd9Sstevel@tonic-gate msg_fini(); 34887c478bd9Sstevel@tonic-gate inetd_stop(); 34897c478bd9Sstevel@tonic-gate got_sigterm = B_FALSE; 34907c478bd9Sstevel@tonic-gate goto check_if_stopped; 34917c478bd9Sstevel@tonic-gate } 34927c478bd9Sstevel@tonic-gate 34937c478bd9Sstevel@tonic-gate /* 34947c478bd9Sstevel@tonic-gate * Process any stop/refresh requests from the Unix Domain 34957c478bd9Sstevel@tonic-gate * Socket. 34967c478bd9Sstevel@tonic-gate */ 34977c478bd9Sstevel@tonic-gate if ((pret != -1) && isset_pollfd(uds_fd)) { 34987c478bd9Sstevel@tonic-gate while (process_uds_event() == 0) 34997c478bd9Sstevel@tonic-gate ; 35007c478bd9Sstevel@tonic-gate } 35017c478bd9Sstevel@tonic-gate 35027c478bd9Sstevel@tonic-gate /* 35037c478bd9Sstevel@tonic-gate * Process refresh request. We do this check after the UDS 35047c478bd9Sstevel@tonic-gate * event check above, as it would be wasted processing if we 35057c478bd9Sstevel@tonic-gate * started refreshing inetd based on a SIGHUP, and then were 35067c478bd9Sstevel@tonic-gate * told to shut-down via a UDS event. 35077c478bd9Sstevel@tonic-gate */ 35087c478bd9Sstevel@tonic-gate if (refresh_inetd_requested) { 35097c478bd9Sstevel@tonic-gate refresh_inetd_requested = B_FALSE; 35107c478bd9Sstevel@tonic-gate if (!inetd_stopping) 35117c478bd9Sstevel@tonic-gate inetd_refresh(); 35127c478bd9Sstevel@tonic-gate } 35137c478bd9Sstevel@tonic-gate 35147c478bd9Sstevel@tonic-gate /* 35157c478bd9Sstevel@tonic-gate * We were interrupted by a signal. Don't waste any more 35167c478bd9Sstevel@tonic-gate * time processing a potentially inaccurate poll return. 35177c478bd9Sstevel@tonic-gate */ 35187c478bd9Sstevel@tonic-gate if (pret == -1) 35197c478bd9Sstevel@tonic-gate continue; 35207c478bd9Sstevel@tonic-gate 35217c478bd9Sstevel@tonic-gate /* 35227c478bd9Sstevel@tonic-gate * Process any instance restarter events. 35237c478bd9Sstevel@tonic-gate */ 35247c478bd9Sstevel@tonic-gate if (isset_pollfd(rst_event_pipe[PE_CONSUMER])) { 35257c478bd9Sstevel@tonic-gate while (process_restarter_event() == 0) 35267c478bd9Sstevel@tonic-gate ; 35277c478bd9Sstevel@tonic-gate } 35287c478bd9Sstevel@tonic-gate 35297c478bd9Sstevel@tonic-gate /* 35307c478bd9Sstevel@tonic-gate * Process any expired timers (bind retry, con-rate offline, 35317c478bd9Sstevel@tonic-gate * method timeouts). 35327c478bd9Sstevel@tonic-gate */ 35337c478bd9Sstevel@tonic-gate (void) iu_expire_timers(timer_queue); 35347c478bd9Sstevel@tonic-gate 35357c478bd9Sstevel@tonic-gate process_terminated_methods(); 35367c478bd9Sstevel@tonic-gate 35377c478bd9Sstevel@tonic-gate /* 35387c478bd9Sstevel@tonic-gate * If inetd is stopping, check whether all our managed 35397c478bd9Sstevel@tonic-gate * instances have been stopped and we can return. 35407c478bd9Sstevel@tonic-gate */ 35417c478bd9Sstevel@tonic-gate if (inetd_stopping) { 35427c478bd9Sstevel@tonic-gate check_if_stopped: 35437c478bd9Sstevel@tonic-gate for (instance = uu_list_first(instance_list); 35447c478bd9Sstevel@tonic-gate instance != NULL; 35457c478bd9Sstevel@tonic-gate instance = uu_list_next(instance_list, instance)) { 35467c478bd9Sstevel@tonic-gate if (!instance_stopped(instance)) { 35477c478bd9Sstevel@tonic-gate debug_msg("%s not yet stopped", 35487c478bd9Sstevel@tonic-gate instance->fmri); 35497c478bd9Sstevel@tonic-gate break; 35507c478bd9Sstevel@tonic-gate } 35517c478bd9Sstevel@tonic-gate } 35527c478bd9Sstevel@tonic-gate /* if all instances are stopped, return */ 35537c478bd9Sstevel@tonic-gate if (instance == NULL) 35547c478bd9Sstevel@tonic-gate return; 35557c478bd9Sstevel@tonic-gate } 35567c478bd9Sstevel@tonic-gate 35577c478bd9Sstevel@tonic-gate process_network_events(); 35587c478bd9Sstevel@tonic-gate } 35597c478bd9Sstevel@tonic-gate } 35607c478bd9Sstevel@tonic-gate 35617c478bd9Sstevel@tonic-gate static void 35627c478bd9Sstevel@tonic-gate fini(void) 35637c478bd9Sstevel@tonic-gate { 35647c478bd9Sstevel@tonic-gate debug_msg("Entering fini"); 35657c478bd9Sstevel@tonic-gate 35667c478bd9Sstevel@tonic-gate method_fini(); 35677c478bd9Sstevel@tonic-gate uds_fini(); 35687c478bd9Sstevel@tonic-gate if (timer_queue != NULL) 35697c478bd9Sstevel@tonic-gate iu_tq_destroy(timer_queue); 3570b823d4c7Sdstaff 35717c478bd9Sstevel@tonic-gate 35727c478bd9Sstevel@tonic-gate /* 3573b823d4c7Sdstaff * We don't bother to undo the restarter interface at all. 3574b823d4c7Sdstaff * Because of quirks in the interface, there is no way to 3575b823d4c7Sdstaff * disconnect from the channel and cause any new events to be 3576b823d4c7Sdstaff * queued. However, any events which are received and not 3577b823d4c7Sdstaff * acknowledged will be re-sent when inetd restarts as long as inetd 3578b823d4c7Sdstaff * uses the same subscriber ID, which it does. 3579b823d4c7Sdstaff * 3580b823d4c7Sdstaff * By keeping the event pipe open but ignoring it, any events which 3581b823d4c7Sdstaff * occur will cause restarter_event_proxy to hang without breaking 3582b823d4c7Sdstaff * anything. 35837c478bd9Sstevel@tonic-gate */ 35847c478bd9Sstevel@tonic-gate 35857c478bd9Sstevel@tonic-gate if (instance_list != NULL) { 35867c478bd9Sstevel@tonic-gate void *cookie = NULL; 35877c478bd9Sstevel@tonic-gate instance_t *inst; 35887c478bd9Sstevel@tonic-gate 35897c478bd9Sstevel@tonic-gate while ((inst = uu_list_teardown(instance_list, &cookie)) != 35907c478bd9Sstevel@tonic-gate NULL) 35917c478bd9Sstevel@tonic-gate destroy_instance(inst); 35927c478bd9Sstevel@tonic-gate uu_list_destroy(instance_list); 35937c478bd9Sstevel@tonic-gate } 35947c478bd9Sstevel@tonic-gate if (instance_pool != NULL) 35957c478bd9Sstevel@tonic-gate uu_list_pool_destroy(instance_pool); 35967c478bd9Sstevel@tonic-gate tlx_fini(); 35977c478bd9Sstevel@tonic-gate config_fini(); 35987c478bd9Sstevel@tonic-gate repval_fini(); 35997c478bd9Sstevel@tonic-gate poll_fini(); 36007c478bd9Sstevel@tonic-gate 36017c478bd9Sstevel@tonic-gate /* Close audit session */ 36027c478bd9Sstevel@tonic-gate (void) adt_end_session(audit_handle); 36037c478bd9Sstevel@tonic-gate } 36047c478bd9Sstevel@tonic-gate 36057c478bd9Sstevel@tonic-gate static int 36067c478bd9Sstevel@tonic-gate init(void) 36077c478bd9Sstevel@tonic-gate { 36087c478bd9Sstevel@tonic-gate int err; 36097c478bd9Sstevel@tonic-gate 36107c478bd9Sstevel@tonic-gate debug_msg("Entering init"); 36117c478bd9Sstevel@tonic-gate 36127c478bd9Sstevel@tonic-gate if (repval_init() < 0) 36137c478bd9Sstevel@tonic-gate goto failed; 36147c478bd9Sstevel@tonic-gate 36157c478bd9Sstevel@tonic-gate if (config_init() < 0) 36167c478bd9Sstevel@tonic-gate goto failed; 36177c478bd9Sstevel@tonic-gate 36187c478bd9Sstevel@tonic-gate if (tlx_init() < 0) 36197c478bd9Sstevel@tonic-gate goto failed; 36207c478bd9Sstevel@tonic-gate 36217c478bd9Sstevel@tonic-gate /* Setup instance list. */ 36227c478bd9Sstevel@tonic-gate if ((instance_pool = uu_list_pool_create("instance_pool", 36237c478bd9Sstevel@tonic-gate sizeof (instance_t), offsetof(instance_t, link), NULL, 36247c478bd9Sstevel@tonic-gate UU_LIST_POOL_DEBUG)) == NULL) { 36257c478bd9Sstevel@tonic-gate error_msg("%s: %s", 36267c478bd9Sstevel@tonic-gate gettext("Failed to create instance pool"), 36277c478bd9Sstevel@tonic-gate uu_strerror(uu_error())); 36287c478bd9Sstevel@tonic-gate goto failed; 36297c478bd9Sstevel@tonic-gate } 36307c478bd9Sstevel@tonic-gate if ((instance_list = uu_list_create(instance_pool, NULL, 0)) == NULL) { 36317c478bd9Sstevel@tonic-gate error_msg("%s: %s", 36327c478bd9Sstevel@tonic-gate gettext("Failed to create instance list"), 36337c478bd9Sstevel@tonic-gate uu_strerror(uu_error())); 36347c478bd9Sstevel@tonic-gate goto failed; 36357c478bd9Sstevel@tonic-gate } 36367c478bd9Sstevel@tonic-gate 36377c478bd9Sstevel@tonic-gate /* 36387c478bd9Sstevel@tonic-gate * Create event pipe to communicate events with the main event 36397c478bd9Sstevel@tonic-gate * loop and add it to the event loop's fdset. 36407c478bd9Sstevel@tonic-gate */ 36417c478bd9Sstevel@tonic-gate if (pipe(rst_event_pipe) < 0) { 36427c478bd9Sstevel@tonic-gate error_msg("pipe: %s", strerror(errno)); 36437c478bd9Sstevel@tonic-gate goto failed; 36447c478bd9Sstevel@tonic-gate } 36457c478bd9Sstevel@tonic-gate /* 36467c478bd9Sstevel@tonic-gate * We only leave the producer end to block on reads/writes as we 36477c478bd9Sstevel@tonic-gate * can't afford to block in the main thread, yet need to in 36487c478bd9Sstevel@tonic-gate * the restarter event thread, so it can sit and wait for an 36497c478bd9Sstevel@tonic-gate * acknowledgement to be written to the pipe. 36507c478bd9Sstevel@tonic-gate */ 36517c478bd9Sstevel@tonic-gate disable_blocking(rst_event_pipe[PE_CONSUMER]); 36527c478bd9Sstevel@tonic-gate if ((set_pollfd(rst_event_pipe[PE_CONSUMER], POLLIN)) == -1) 36537c478bd9Sstevel@tonic-gate goto failed; 36547c478bd9Sstevel@tonic-gate 36557c478bd9Sstevel@tonic-gate /* 36567c478bd9Sstevel@tonic-gate * Register with master restarter for managed service events. This 36577c478bd9Sstevel@tonic-gate * will fail, amongst other reasons, if inetd is already running. 36587c478bd9Sstevel@tonic-gate */ 36597c478bd9Sstevel@tonic-gate if ((err = restarter_bind_handle(RESTARTER_EVENT_VERSION, 36607c478bd9Sstevel@tonic-gate INETD_INSTANCE_FMRI, restarter_event_proxy, 0, 36617c478bd9Sstevel@tonic-gate &rst_event_handle)) != 0) { 36627c478bd9Sstevel@tonic-gate error_msg(gettext( 36637c478bd9Sstevel@tonic-gate "Failed to register for restarter events: %s"), 36647c478bd9Sstevel@tonic-gate strerror(err)); 36657c478bd9Sstevel@tonic-gate goto failed; 36667c478bd9Sstevel@tonic-gate } 36677c478bd9Sstevel@tonic-gate 36687c478bd9Sstevel@tonic-gate if (contract_init() < 0) 36697c478bd9Sstevel@tonic-gate goto failed; 36707c478bd9Sstevel@tonic-gate 36717c478bd9Sstevel@tonic-gate if ((timer_queue = iu_tq_create()) == NULL) { 36727c478bd9Sstevel@tonic-gate error_msg(gettext("Failed to create timer queue.")); 36737c478bd9Sstevel@tonic-gate goto failed; 36747c478bd9Sstevel@tonic-gate } 36757c478bd9Sstevel@tonic-gate 36767c478bd9Sstevel@tonic-gate if (uds_init() < 0) 36777c478bd9Sstevel@tonic-gate goto failed; 36787c478bd9Sstevel@tonic-gate 36797c478bd9Sstevel@tonic-gate if (method_init() < 0) 36807c478bd9Sstevel@tonic-gate goto failed; 36817c478bd9Sstevel@tonic-gate 36827c478bd9Sstevel@tonic-gate /* Initialize auditing session */ 36837c478bd9Sstevel@tonic-gate if (adt_start_session(&audit_handle, NULL, ADT_USE_PROC_DATA) != 0) { 36847c478bd9Sstevel@tonic-gate error_msg(gettext("Unable to start audit session")); 36857c478bd9Sstevel@tonic-gate } 36867c478bd9Sstevel@tonic-gate 36877c478bd9Sstevel@tonic-gate /* 36887c478bd9Sstevel@tonic-gate * Initialize signal dispositions/masks 36897c478bd9Sstevel@tonic-gate */ 36907c478bd9Sstevel@tonic-gate (void) sigset(SIGHUP, sighup_handler); 36917c478bd9Sstevel@tonic-gate (void) sigset(SIGTERM, sigterm_handler); 36927c478bd9Sstevel@tonic-gate (void) sigignore(SIGINT); 36937c478bd9Sstevel@tonic-gate 36947c478bd9Sstevel@tonic-gate return (0); 36957c478bd9Sstevel@tonic-gate 36967c478bd9Sstevel@tonic-gate failed: 36977c478bd9Sstevel@tonic-gate fini(); 36987c478bd9Sstevel@tonic-gate return (-1); 36997c478bd9Sstevel@tonic-gate } 37007c478bd9Sstevel@tonic-gate 37017c478bd9Sstevel@tonic-gate static int 37027c478bd9Sstevel@tonic-gate start_method(void) 37037c478bd9Sstevel@tonic-gate { 37047c478bd9Sstevel@tonic-gate int i; 37057c478bd9Sstevel@tonic-gate int pipe_fds[2]; 37067c478bd9Sstevel@tonic-gate int child; 37077c478bd9Sstevel@tonic-gate 37087c478bd9Sstevel@tonic-gate debug_msg("ENTERING START_METHOD:"); 37097c478bd9Sstevel@tonic-gate 37107c478bd9Sstevel@tonic-gate /* Create pipe for child to notify parent of initialization success. */ 37117c478bd9Sstevel@tonic-gate if (pipe(pipe_fds) < 0) { 37127c478bd9Sstevel@tonic-gate debug_msg("pipe: %s", strerror(errno)); 37137c478bd9Sstevel@tonic-gate return (SMF_EXIT_ERR_OTHER); 37147c478bd9Sstevel@tonic-gate } 37157c478bd9Sstevel@tonic-gate 37167c478bd9Sstevel@tonic-gate if ((child = fork()) == -1) { 37177c478bd9Sstevel@tonic-gate debug_msg("fork: %s", strerror(errno)); 37187c478bd9Sstevel@tonic-gate (void) close(pipe_fds[PE_CONSUMER]); 37197c478bd9Sstevel@tonic-gate (void) close(pipe_fds[PE_PRODUCER]); 37207c478bd9Sstevel@tonic-gate return (SMF_EXIT_ERR_OTHER); 37217c478bd9Sstevel@tonic-gate } else if (child > 0) { /* parent */ 37227c478bd9Sstevel@tonic-gate 37237c478bd9Sstevel@tonic-gate /* Wait on child to return success of initialization. */ 37247c478bd9Sstevel@tonic-gate (void) close(pipe_fds[PE_PRODUCER]); 37257c478bd9Sstevel@tonic-gate if ((safe_read(pipe_fds[PE_CONSUMER], &i, sizeof (i)) != 0) || 37267c478bd9Sstevel@tonic-gate (i < 0)) { 37277c478bd9Sstevel@tonic-gate error_msg(gettext( 37287c478bd9Sstevel@tonic-gate "Initialization failed, unable to start")); 37297c478bd9Sstevel@tonic-gate (void) close(pipe_fds[PE_CONSUMER]); 37307c478bd9Sstevel@tonic-gate /* 37317c478bd9Sstevel@tonic-gate * Batch all initialization errors as 'other' errors, 37327c478bd9Sstevel@tonic-gate * resulting in retries being attempted. 37337c478bd9Sstevel@tonic-gate */ 37347c478bd9Sstevel@tonic-gate return (SMF_EXIT_ERR_OTHER); 37357c478bd9Sstevel@tonic-gate } else { 37367c478bd9Sstevel@tonic-gate (void) close(pipe_fds[PE_CONSUMER]); 37377c478bd9Sstevel@tonic-gate return (SMF_EXIT_OK); 37387c478bd9Sstevel@tonic-gate } 37397c478bd9Sstevel@tonic-gate } else { /* child */ 37407c478bd9Sstevel@tonic-gate /* 37417c478bd9Sstevel@tonic-gate * Perform initialization and return success code down 37427c478bd9Sstevel@tonic-gate * the pipe. 37437c478bd9Sstevel@tonic-gate */ 37447c478bd9Sstevel@tonic-gate (void) close(pipe_fds[PE_CONSUMER]); 37457c478bd9Sstevel@tonic-gate i = init(); 37467c478bd9Sstevel@tonic-gate if ((safe_write(pipe_fds[PE_PRODUCER], &i, sizeof (i)) < 0) || 37477c478bd9Sstevel@tonic-gate (i < 0)) { 37487c478bd9Sstevel@tonic-gate error_msg(gettext("pipe write failure: %s"), 37497c478bd9Sstevel@tonic-gate strerror(errno)); 37507c478bd9Sstevel@tonic-gate exit(1); 37517c478bd9Sstevel@tonic-gate } 37527c478bd9Sstevel@tonic-gate (void) close(pipe_fds[PE_PRODUCER]); 37537c478bd9Sstevel@tonic-gate 37547c478bd9Sstevel@tonic-gate (void) setsid(); 37557c478bd9Sstevel@tonic-gate 37567c478bd9Sstevel@tonic-gate /* 37577c478bd9Sstevel@tonic-gate * Log a message if the configuration file has changed since 37587c478bd9Sstevel@tonic-gate * inetconv was last run. 37597c478bd9Sstevel@tonic-gate */ 37607c478bd9Sstevel@tonic-gate check_conf_file(); 37617c478bd9Sstevel@tonic-gate 37627c478bd9Sstevel@tonic-gate event_loop(); 37637c478bd9Sstevel@tonic-gate 37647c478bd9Sstevel@tonic-gate fini(); 37657c478bd9Sstevel@tonic-gate debug_msg("inetd stopped"); 37667c478bd9Sstevel@tonic-gate msg_fini(); 37677c478bd9Sstevel@tonic-gate exit(0); 37687c478bd9Sstevel@tonic-gate } 37697c478bd9Sstevel@tonic-gate /* NOTREACHED */ 37707c478bd9Sstevel@tonic-gate } 37717c478bd9Sstevel@tonic-gate 37727c478bd9Sstevel@tonic-gate /* 37737c478bd9Sstevel@tonic-gate * When inetd is run from outside the SMF, this message is output to provide 37747c478bd9Sstevel@tonic-gate * the person invoking inetd with further information that will help them 37757c478bd9Sstevel@tonic-gate * understand how to start and stop inetd, and to achieve the other 37767c478bd9Sstevel@tonic-gate * behaviors achievable with the legacy inetd command line interface, if 37777c478bd9Sstevel@tonic-gate * it is possible. 37787c478bd9Sstevel@tonic-gate */ 37797c478bd9Sstevel@tonic-gate static void 37807c478bd9Sstevel@tonic-gate legacy_usage(void) 37817c478bd9Sstevel@tonic-gate { 37827c478bd9Sstevel@tonic-gate (void) fprintf(stderr, 37837c478bd9Sstevel@tonic-gate "inetd is now an smf(5) managed service and can no longer be run " 37847c478bd9Sstevel@tonic-gate "from the\n" 37857c478bd9Sstevel@tonic-gate "command line. To enable or disable inetd refer to svcadm(1M) on\n" 37867c478bd9Sstevel@tonic-gate "how to enable \"%s\", the inetd instance.\n" 37877c478bd9Sstevel@tonic-gate "\n" 37887c478bd9Sstevel@tonic-gate "The traditional inetd command line option mappings are:\n" 37897c478bd9Sstevel@tonic-gate "\t-d : there is no supported debug output\n" 37907c478bd9Sstevel@tonic-gate "\t-s : inetd is only runnable from within the SMF\n" 37917c478bd9Sstevel@tonic-gate "\t-t : See inetadm(1M) on how to enable TCP tracing\n" 37927c478bd9Sstevel@tonic-gate "\t-r : See inetadm(1M) on how to set a failure rate\n" 37937c478bd9Sstevel@tonic-gate "\n" 37947c478bd9Sstevel@tonic-gate "To specify an alternative configuration file see svccfg(1M)\n" 37957c478bd9Sstevel@tonic-gate "for how to modify the \"%s/%s\" string type property of\n" 37967c478bd9Sstevel@tonic-gate "the inetd instance, and modify it according to the syntax:\n" 37977c478bd9Sstevel@tonic-gate "\"%s [alt_config_file] %%m\".\n" 37987c478bd9Sstevel@tonic-gate "\n" 37997c478bd9Sstevel@tonic-gate "For further information on inetd see inetd(1M).\n", 38007c478bd9Sstevel@tonic-gate INETD_INSTANCE_FMRI, START_METHOD_ARG, SCF_PROPERTY_EXEC, 38017c478bd9Sstevel@tonic-gate INETD_PATH); 38027c478bd9Sstevel@tonic-gate } 38037c478bd9Sstevel@tonic-gate 38047c478bd9Sstevel@tonic-gate /* 38057c478bd9Sstevel@tonic-gate * Usage message printed out for usage errors when running under the SMF. 38067c478bd9Sstevel@tonic-gate */ 38077c478bd9Sstevel@tonic-gate static void 38087c478bd9Sstevel@tonic-gate smf_usage(const char *arg0) 38097c478bd9Sstevel@tonic-gate { 38107c478bd9Sstevel@tonic-gate error_msg("Usage: %s [alt_conf_file] %s|%s|%s", arg0, START_METHOD_ARG, 38117c478bd9Sstevel@tonic-gate STOP_METHOD_ARG, REFRESH_METHOD_ARG); 38127c478bd9Sstevel@tonic-gate } 38137c478bd9Sstevel@tonic-gate 38147c478bd9Sstevel@tonic-gate /* 38157c478bd9Sstevel@tonic-gate * Returns B_TRUE if we're being run from within the SMF, else B_FALSE. 38167c478bd9Sstevel@tonic-gate */ 38177c478bd9Sstevel@tonic-gate static boolean_t 38187c478bd9Sstevel@tonic-gate run_through_smf(void) 38197c478bd9Sstevel@tonic-gate { 38207c478bd9Sstevel@tonic-gate char *fmri; 38217c478bd9Sstevel@tonic-gate 38227c478bd9Sstevel@tonic-gate /* 38237c478bd9Sstevel@tonic-gate * check if the instance fmri environment variable has been set by 38247c478bd9Sstevel@tonic-gate * our restarter. 38257c478bd9Sstevel@tonic-gate */ 38267c478bd9Sstevel@tonic-gate return (((fmri = getenv("SMF_FMRI")) != NULL) && 38277c478bd9Sstevel@tonic-gate (strcmp(fmri, INETD_INSTANCE_FMRI) == 0)); 38287c478bd9Sstevel@tonic-gate } 38297c478bd9Sstevel@tonic-gate 38307c478bd9Sstevel@tonic-gate int 38317c478bd9Sstevel@tonic-gate main(int argc, char *argv[]) 38327c478bd9Sstevel@tonic-gate { 38337c478bd9Sstevel@tonic-gate char *method; 38347c478bd9Sstevel@tonic-gate int ret; 38357c478bd9Sstevel@tonic-gate 38367c478bd9Sstevel@tonic-gate #if !defined(TEXT_DOMAIN) 38377c478bd9Sstevel@tonic-gate #define TEXT_DOMAIN "SYS_TEST" 38387c478bd9Sstevel@tonic-gate #endif 38397c478bd9Sstevel@tonic-gate (void) textdomain(TEXT_DOMAIN); 38407c478bd9Sstevel@tonic-gate (void) setlocale(LC_ALL, ""); 38417c478bd9Sstevel@tonic-gate 38427c478bd9Sstevel@tonic-gate if (!run_through_smf()) { 38437c478bd9Sstevel@tonic-gate legacy_usage(); 38447c478bd9Sstevel@tonic-gate return (SMF_EXIT_ERR_NOSMF); 38457c478bd9Sstevel@tonic-gate } 38467c478bd9Sstevel@tonic-gate 38477c478bd9Sstevel@tonic-gate msg_init(); /* setup logging */ 38487c478bd9Sstevel@tonic-gate 3849004388ebScasper (void) enable_extended_FILE_stdio(-1, -1); 3850004388ebScasper 38517c478bd9Sstevel@tonic-gate /* inetd invocation syntax is inetd [alt_conf_file] method_name */ 38527c478bd9Sstevel@tonic-gate 38537c478bd9Sstevel@tonic-gate switch (argc) { 38547c478bd9Sstevel@tonic-gate case 2: 38557c478bd9Sstevel@tonic-gate method = argv[1]; 38567c478bd9Sstevel@tonic-gate break; 38577c478bd9Sstevel@tonic-gate case 3: 38587c478bd9Sstevel@tonic-gate conf_file = argv[1]; 38597c478bd9Sstevel@tonic-gate method = argv[2]; 38607c478bd9Sstevel@tonic-gate break; 38617c478bd9Sstevel@tonic-gate default: 38627c478bd9Sstevel@tonic-gate smf_usage(argv[0]); 38637c478bd9Sstevel@tonic-gate return (SMF_EXIT_ERR_CONFIG); 38647c478bd9Sstevel@tonic-gate 38657c478bd9Sstevel@tonic-gate } 38667c478bd9Sstevel@tonic-gate 38677c478bd9Sstevel@tonic-gate if (strcmp(method, START_METHOD_ARG) == 0) { 38687c478bd9Sstevel@tonic-gate ret = start_method(); 38697c478bd9Sstevel@tonic-gate } else if (strcmp(method, STOP_METHOD_ARG) == 0) { 38707c478bd9Sstevel@tonic-gate ret = stop_method(); 38717c478bd9Sstevel@tonic-gate } else if (strcmp(method, REFRESH_METHOD_ARG) == 0) { 38727c478bd9Sstevel@tonic-gate ret = refresh_method(); 38737c478bd9Sstevel@tonic-gate } else { 38747c478bd9Sstevel@tonic-gate smf_usage(argv[0]); 38757c478bd9Sstevel@tonic-gate return (SMF_EXIT_ERR_CONFIG); 38767c478bd9Sstevel@tonic-gate } 38777c478bd9Sstevel@tonic-gate 38787c478bd9Sstevel@tonic-gate return (ret); 38797c478bd9Sstevel@tonic-gate } 3880