Mercurial > illumos > illumos-gate
annotate usr/src/cmd/svc/startd/startd.c @ 5777:e3276fcb93e7
5079356 Framework should provide administrative audit trail/history
6405683 svc.configd audit events need to be defined.
| author | tw21770 |
|---|---|
| date | Mon, 07 Jan 2008 14:04:56 -0800 |
| parents | 2ad824648def |
| children | 91b62f7b8186 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 * CDDL HEADER START | |
| 3 * | |
| 4 * The contents of this file are subject to the terms of the | |
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5 * Common Development and Distribution License (the "License"). |
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6 * You may not use this file except in compliance with the License. |
| 0 | 7 * |
| 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE | |
| 9 * or http://www.opensolaris.org/os/licensing. | |
| 10 * See the License for the specific language governing permissions | |
| 11 * and limitations under the License. | |
| 12 * | |
| 13 * When distributing Covered Code, include this CDDL HEADER in each | |
| 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. | |
| 15 * If applicable, add the following below this CDDL HEADER, with the | |
| 16 * fields enclosed by brackets "[]" replaced with your own identifying | |
| 17 * information: Portions Copyright [yyyy] [name of copyright owner] | |
| 18 * | |
| 19 * CDDL HEADER END | |
| 20 */ | |
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21 |
| 0 | 22 /* |
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23 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. |
| 0 | 24 * Use is subject to license terms. |
| 25 */ | |
| 26 | |
| 27 #pragma ident "%Z%%M% %I% %E% SMI" | |
| 28 | |
| 29 /* | |
| 30 * startd.c - the master restarter | |
| 31 * | |
| 32 * svc.startd comprises two halves. The graph engine is based in graph.c and | |
| 33 * maintains the service dependency graph based on the information in the | |
| 34 * repository. For each service it also tracks the current state and the | |
| 35 * restarter responsible for the service. Based on the graph, events from the | |
| 36 * repository (mostly administrative requests from svcadm), and messages from | |
| 37 * the restarters, the graph engine makes decisions about how the services | |
| 38 * should be manipulated and sends commands to the appropriate restarters. | |
| 39 * Communication between the graph engine and the restarters is embodied in | |
| 40 * protocol.c. | |
| 41 * | |
| 42 * The second half of svc.startd is the restarter for services managed by | |
| 43 * svc.startd and is primarily contained in restarter.c. It responds to graph | |
| 44 * engine commands by executing methods, updating the repository, and sending | |
| 45 * feedback (mostly state updates) to the graph engine. | |
| 46 * | |
| 47 * Error handling | |
| 48 * | |
| 49 * In general, when svc.startd runs out of memory it reattempts a few times, | |
| 50 * sleeping inbetween, before giving up and exiting (see startd_alloc_retry()). | |
| 51 * When a repository connection is broken (libscf calls fail with | |
| 52 * SCF_ERROR_CONNECTION_BROKEN, librestart and internal functions return | |
| 53 * ECONNABORTED), svc.startd calls libscf_rebind_handle(), which coordinates | |
| 54 * with the svc.configd-restarting thread, fork_configd_thread(), via | |
| 55 * st->st_configd_live_cv, and rebinds the repository handle. Doing so resets | |
| 56 * all libscf state associated with that handle, so functions which do this | |
| 57 * should communicate the event to their callers (usually by returning | |
| 58 * ECONNRESET) so they may reset their state appropriately. | |
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59 * |
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60 * External references |
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61 * |
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62 * svc.configd generates special security audit events for changes to some |
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63 * restarter related properties. See the special_props_list array in |
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64 * usr/src/cmd/svc/configd/rc_node.c for the properties that cause these audit |
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65 * events. If you change the semantics of these propereties within startd, you |
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66 * will probably need to update rc_node.c |
| 0 | 67 */ |
| 68 | |
| 69 #include <stdio.h> | |
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70 #include <stdio_ext.h> |
| 0 | 71 #include <sys/mnttab.h> /* uses FILE * without including stdio.h */ |
| 72 #include <alloca.h> | |
| 73 #include <sys/mount.h> | |
| 74 #include <sys/stat.h> | |
| 75 #include <sys/types.h> | |
| 76 #include <sys/wait.h> | |
| 77 #include <assert.h> | |
| 78 #include <errno.h> | |
| 79 #include <fcntl.h> | |
| 80 #include <ftw.h> | |
| 81 #include <libintl.h> | |
| 82 #include <libscf.h> | |
| 83 #include <libscf_priv.h> | |
| 84 #include <libuutil.h> | |
| 85 #include <locale.h> | |
| 86 #include <poll.h> | |
| 87 #include <pthread.h> | |
| 88 #include <signal.h> | |
| 89 #include <stdarg.h> | |
| 90 #include <stdlib.h> | |
| 91 #include <string.h> | |
| 92 #include <strings.h> | |
| 93 #include <unistd.h> | |
| 94 | |
| 95 #include "startd.h" | |
| 96 #include "protocol.h" | |
| 97 | |
| 98 ssize_t max_scf_name_size; | |
| 99 ssize_t max_scf_fmri_size; | |
| 100 ssize_t max_scf_value_size; | |
| 101 | |
| 102 mode_t fmask; | |
| 103 mode_t dmask; | |
| 104 | |
| 105 graph_update_t *gu; | |
| 106 restarter_update_t *ru; | |
| 107 | |
| 108 startd_state_t *st; | |
| 109 | |
| 110 boolean_t booting_to_single_user = B_FALSE; | |
| 111 | |
| 112 const char * const admin_actions[] = { | |
| 113 SCF_PROPERTY_DEGRADED, | |
| 114 SCF_PROPERTY_MAINT_OFF, | |
| 115 SCF_PROPERTY_MAINT_ON, | |
| 116 SCF_PROPERTY_MAINT_ON_IMMEDIATE, | |
| 117 SCF_PROPERTY_REFRESH, | |
| 118 SCF_PROPERTY_RESTART | |
| 119 }; | |
| 120 | |
| 121 const int admin_events[NACTIONS] = { | |
| 122 RESTARTER_EVENT_TYPE_ADMIN_DEGRADED, | |
| 123 RESTARTER_EVENT_TYPE_ADMIN_MAINT_OFF, | |
| 124 RESTARTER_EVENT_TYPE_ADMIN_MAINT_ON, | |
| 125 RESTARTER_EVENT_TYPE_ADMIN_MAINT_ON_IMMEDIATE, | |
| 126 RESTARTER_EVENT_TYPE_ADMIN_REFRESH, | |
| 127 RESTARTER_EVENT_TYPE_ADMIN_RESTART | |
| 128 }; | |
| 129 | |
| 130 const char * const instance_state_str[] = { | |
| 131 "none", | |
| 132 "uninitialized", | |
| 133 "maintenance", | |
| 134 "offline", | |
| 135 "disabled", | |
| 136 "online", | |
| 137 "degraded" | |
| 138 }; | |
| 139 | |
| 140 static int finished = 0; | |
| 141 static int opt_reconfig = 0; | |
| 142 static uint8_t prop_reconfig = 0; | |
| 143 | |
| 144 #define INITIAL_REBIND_ATTEMPTS 5 | |
| 145 #define INITIAL_REBIND_DELAY 3 | |
| 146 | |
| 147 pthread_mutexattr_t mutex_attrs; | |
| 148 | |
| 149 const char * | |
| 150 _umem_debug_init(void) | |
| 151 { | |
| 152 return ("default,verbose"); /* UMEM_DEBUG setting */ | |
| 153 } | |
| 154 | |
| 155 const char * | |
| 156 _umem_logging_init(void) | |
| 157 { | |
| 158 return ("fail,contents"); /* UMEM_LOGGING setting */ | |
| 159 } | |
| 160 | |
| 161 /* | |
| 162 * startd_alloc_retry() | |
| 163 * Wrapper for allocation functions. Retries with a decaying time | |
| 164 * value on failure to allocate, and aborts startd if failure is | |
| 165 * persistent. | |
| 166 */ | |
| 167 void * | |
| 168 startd_alloc_retry(void *f(size_t, int), size_t sz) | |
| 169 { | |
| 170 void *p; | |
| 171 uint_t try, msecs; | |
| 172 | |
| 173 p = f(sz, UMEM_DEFAULT); | |
| 174 if (p != NULL || sz == 0) | |
| 175 return (p); | |
| 176 | |
| 177 msecs = ALLOC_DELAY; | |
| 178 | |
| 179 for (try = 0; p == NULL && try < ALLOC_RETRY; ++try) { | |
| 180 (void) poll(NULL, 0, msecs); | |
| 181 msecs *= ALLOC_DELAY_MULT; | |
| 182 p = f(sz, UMEM_DEFAULT); | |
| 183 if (p != NULL) | |
| 184 return (p); | |
| 185 } | |
| 186 | |
| 187 uu_die("Insufficient memory.\n"); | |
| 188 /* NOTREACHED */ | |
| 189 } | |
| 190 | |
| 191 void * | |
| 192 safe_realloc(void *p, size_t sz) | |
| 193 { | |
| 194 uint_t try, msecs; | |
| 195 | |
| 196 p = realloc(p, sz); | |
| 197 if (p != NULL || sz == 0) | |
| 198 return (p); | |
| 199 | |
| 200 msecs = ALLOC_DELAY; | |
| 201 | |
| 202 for (try = 0; errno == EAGAIN && try < ALLOC_RETRY; ++try) { | |
| 203 (void) poll(NULL, 0, msecs); | |
| 204 p = realloc(p, sz); | |
| 205 if (p != NULL) | |
| 206 return (p); | |
| 207 msecs *= ALLOC_DELAY_MULT; | |
| 208 } | |
| 209 | |
| 210 uu_die("Insufficient memory.\n"); | |
| 211 /* NOTREACHED */ | |
| 212 } | |
| 213 | |
| 214 char * | |
| 215 safe_strdup(const char *s) | |
| 216 { | |
| 217 uint_t try, msecs; | |
| 218 char *d; | |
| 219 | |
| 220 d = strdup(s); | |
| 221 if (d != NULL) | |
| 222 return (d); | |
| 223 | |
| 224 msecs = ALLOC_DELAY; | |
| 225 | |
| 226 for (try = 0; | |
| 227 (errno == EAGAIN || errno == ENOMEM) && try < ALLOC_RETRY; | |
| 228 ++try) { | |
| 229 (void) poll(NULL, 0, msecs); | |
| 230 d = strdup(s); | |
| 231 if (d != NULL) | |
| 232 return (d); | |
| 233 msecs *= ALLOC_DELAY_MULT; | |
| 234 } | |
| 235 | |
| 236 uu_die("Insufficient memory.\n"); | |
| 237 /* NOTREACHED */ | |
| 238 } | |
| 239 | |
| 240 | |
| 241 void | |
| 242 startd_free(void *p, size_t sz) | |
| 243 { | |
| 244 umem_free(p, sz); | |
| 245 } | |
| 246 | |
| 247 /* | |
| 248 * Creates a uu_list_pool_t with the same retry policy as startd_alloc(). | |
| 249 * Only returns NULL for UU_ERROR_UNKNOWN_FLAG and UU_ERROR_NOT_SUPPORTED. | |
| 250 */ | |
| 251 uu_list_pool_t * | |
| 252 startd_list_pool_create(const char *name, size_t e, size_t o, | |
| 253 uu_compare_fn_t *f, uint32_t flags) | |
| 254 { | |
| 255 uu_list_pool_t *pool; | |
| 256 uint_t try, msecs; | |
| 257 | |
| 258 pool = uu_list_pool_create(name, e, o, f, flags); | |
| 259 if (pool != NULL) | |
| 260 return (pool); | |
| 261 | |
| 262 msecs = ALLOC_DELAY; | |
| 263 | |
| 264 for (try = 0; uu_error() == UU_ERROR_NO_MEMORY && try < ALLOC_RETRY; | |
| 265 ++try) { | |
| 266 (void) poll(NULL, 0, msecs); | |
| 267 pool = uu_list_pool_create(name, e, o, f, flags); | |
| 268 if (pool != NULL) | |
| 269 return (pool); | |
| 270 msecs *= ALLOC_DELAY_MULT; | |
| 271 } | |
| 272 | |
| 273 if (try < ALLOC_RETRY) | |
| 274 return (NULL); | |
| 275 | |
| 276 uu_die("Insufficient memory.\n"); | |
| 277 /* NOTREACHED */ | |
| 278 } | |
| 279 | |
| 280 /* | |
| 281 * Creates a uu_list_t with the same retry policy as startd_alloc(). Only | |
| 282 * returns NULL for UU_ERROR_UNKNOWN_FLAG and UU_ERROR_NOT_SUPPORTED. | |
| 283 */ | |
| 284 uu_list_t * | |
| 285 startd_list_create(uu_list_pool_t *pool, void *parent, uint32_t flags) | |
| 286 { | |
| 287 uu_list_t *list; | |
| 288 uint_t try, msecs; | |
| 289 | |
| 290 list = uu_list_create(pool, parent, flags); | |
| 291 if (list != NULL) | |
| 292 return (list); | |
| 293 | |
| 294 msecs = ALLOC_DELAY; | |
| 295 | |
| 296 for (try = 0; uu_error() == UU_ERROR_NO_MEMORY && try < ALLOC_RETRY; | |
| 297 ++try) { | |
| 298 (void) poll(NULL, 0, msecs); | |
| 299 list = uu_list_create(pool, parent, flags); | |
| 300 if (list != NULL) | |
| 301 return (list); | |
| 302 msecs *= ALLOC_DELAY_MULT; | |
| 303 } | |
| 304 | |
| 305 if (try < ALLOC_RETRY) | |
| 306 return (NULL); | |
| 307 | |
| 308 uu_die("Insufficient memory.\n"); | |
| 309 /* NOTREACHED */ | |
| 310 } | |
| 311 | |
| 312 pthread_t | |
| 313 startd_thread_create(void *(*func)(void *), void *ptr) | |
| 314 { | |
| 315 int err; | |
| 316 pthread_t tid; | |
| 317 | |
| 318 err = pthread_create(&tid, NULL, func, ptr); | |
| 319 if (err != 0) { | |
| 320 assert(err == EAGAIN); | |
| 321 uu_die("Could not create thread.\n"); | |
| 322 } | |
| 323 | |
| 324 err = pthread_detach(tid); | |
| 325 assert(err == 0); | |
| 326 | |
| 327 return (tid); | |
| 328 } | |
| 329 | |
| 330 | |
| 331 static int | |
| 1958 | 332 read_startd_config(void) |
| 0 | 333 { |
| 334 scf_handle_t *hndl; | |
| 335 scf_instance_t *inst; | |
| 336 scf_propertygroup_t *pg; | |
| 337 scf_property_t *prop; | |
| 338 scf_value_t *val; | |
| 339 scf_iter_t *iter, *piter; | |
| 340 instance_data_t idata; | |
| 341 char *buf, *vbuf; | |
| 342 char *startd_options_fmri = uu_msprintf("%s/:properties/options", | |
| 343 SCF_SERVICE_STARTD); | |
| 344 char *startd_reconfigure_fmri = uu_msprintf( | |
| 345 "%s/:properties/system/reconfigure", SCF_SERVICE_STARTD); | |
| 346 char *env_opts, *lasts, *cp; | |
| 347 int bind_fails = 0; | |
| 348 int ret = 0, r; | |
| 349 uint_t count = 0, msecs = ALLOC_DELAY; | |
| 350 size_t sz; | |
| 351 ctid_t ctid; | |
| 352 uint64_t uint64; | |
| 353 | |
| 354 buf = startd_alloc(max_scf_fmri_size); | |
| 355 | |
| 356 if (startd_options_fmri == NULL || startd_reconfigure_fmri == NULL) | |
| 357 uu_die("Allocation failure\n"); | |
| 358 | |
| 359 st->st_log_prefix = LOG_PREFIX_EARLY; | |
| 360 | |
| 361 if ((st->st_log_file = getenv("STARTD_DEFAULT_LOG")) == NULL) { | |
| 362 st->st_log_file = startd_alloc(strlen(STARTD_DEFAULT_LOG) + 1); | |
| 363 | |
| 364 (void) strcpy(st->st_log_file, STARTD_DEFAULT_LOG); | |
| 365 } | |
| 366 | |
| 367 st->st_door_path = getenv("STARTD_ALT_DOOR"); | |
| 368 | |
| 369 /* | |
| 370 * Read "options" property group. | |
| 371 */ | |
| 372 for (hndl = libscf_handle_create_bound(SCF_VERSION); hndl == NULL; | |
| 373 hndl = libscf_handle_create_bound(SCF_VERSION), bind_fails++) { | |
| 374 (void) sleep(INITIAL_REBIND_DELAY); | |
| 375 | |
| 376 if (bind_fails > INITIAL_REBIND_ATTEMPTS) { | |
| 377 /* | |
| 378 * In the case that we can't bind to the repository | |
| 379 * (which should have been started), we need to allow | |
| 380 * the user into maintenance mode to determine what's | |
| 381 * failed. | |
| 382 */ | |
| 383 log_framework(LOG_INFO, "Couldn't fetch " | |
| 384 "default settings: %s\n", | |
| 385 scf_strerror(scf_error())); | |
| 386 | |
| 387 ret = -1; | |
| 388 | |
| 389 goto noscfout; | |
| 390 } | |
| 391 } | |
| 392 | |
| 393 idata.i_fmri = SCF_SERVICE_STARTD; | |
| 394 idata.i_state = RESTARTER_STATE_NONE; | |
| 395 idata.i_next_state = RESTARTER_STATE_NONE; | |
| 396 timestamp: | |
| 397 switch (r = _restarter_commit_states(hndl, &idata, | |
| 398 RESTARTER_STATE_ONLINE, RESTARTER_STATE_NONE, NULL)) { | |
| 399 case 0: | |
| 400 break; | |
| 401 | |
| 402 case ENOMEM: | |
| 403 ++count; | |
| 404 if (count < ALLOC_RETRY) { | |
| 405 (void) poll(NULL, 0, msecs); | |
| 406 msecs *= ALLOC_DELAY_MULT; | |
| 407 goto timestamp; | |
| 408 } | |
| 409 | |
| 410 uu_die("Insufficient memory.\n"); | |
| 411 /* NOTREACHED */ | |
| 412 | |
| 413 case ECONNABORTED: | |
| 414 libscf_handle_rebind(hndl); | |
| 415 goto timestamp; | |
| 416 | |
| 417 case ENOENT: | |
| 418 case EPERM: | |
| 419 case EACCES: | |
| 420 case EROFS: | |
| 421 log_error(LOG_INFO, "Could set state of %s: %s.\n", | |
| 422 idata.i_fmri, strerror(r)); | |
| 423 break; | |
| 424 | |
| 425 case EINVAL: | |
| 426 default: | |
| 427 bad_error("_restarter_commit_states", r); | |
| 428 } | |
| 429 | |
| 430 pg = safe_scf_pg_create(hndl); | |
| 431 prop = safe_scf_property_create(hndl); | |
| 432 val = safe_scf_value_create(hndl); | |
| 433 inst = safe_scf_instance_create(hndl); | |
| 434 | |
| 435 /* set startd's restarter properties */ | |
| 436 if (scf_handle_decode_fmri(hndl, SCF_SERVICE_STARTD, NULL, NULL, inst, | |
| 437 NULL, NULL, SCF_DECODE_FMRI_EXACT) == 0) { | |
| 438 (void) libscf_write_start_pid(inst, getpid()); | |
| 439 ctid = proc_get_ctid(); | |
| 440 if (ctid != -1) { | |
| 441 uint64 = (uint64_t)ctid; | |
| 442 (void) libscf_inst_set_count_prop(inst, | |
| 443 SCF_PG_RESTARTER, SCF_PG_RESTARTER_TYPE, | |
| 444 SCF_PG_RESTARTER_FLAGS, SCF_PROPERTY_CONTRACT, | |
| 445 uint64); | |
| 446 } | |
| 447 (void) libscf_note_method_log(inst, LOG_PREFIX_EARLY, | |
| 448 STARTD_DEFAULT_LOG); | |
| 449 (void) libscf_note_method_log(inst, LOG_PREFIX_NORMAL, | |
| 450 STARTD_DEFAULT_LOG); | |
| 451 } | |
| 452 | |
| 453 /* Read reconfigure property for recovery. */ | |
| 454 if (scf_handle_decode_fmri(hndl, startd_reconfigure_fmri, NULL, NULL, | |
| 455 NULL, NULL, prop, NULL) != -1 && | |
| 456 scf_property_get_value(prop, val) == 0) | |
| 457 (void) scf_value_get_boolean(val, &prop_reconfig); | |
| 458 | |
| 459 if (scf_handle_decode_fmri(hndl, startd_options_fmri, NULL, NULL, NULL, | |
| 460 pg, NULL, SCF_DECODE_FMRI_TRUNCATE) == -1) { | |
| 461 /* | |
| 462 * No configuration options defined. | |
| 463 */ | |
| 464 if (scf_error() != SCF_ERROR_NOT_FOUND) | |
| 465 uu_warn("Couldn't read configuration from 'options' " | |
| 466 "group: %s\n", scf_strerror(scf_error())); | |
| 467 goto scfout; | |
| 468 } | |
| 469 | |
| 470 /* | |
| 471 * If there is no "options" group defined, then our defaults are fine. | |
| 472 */ | |
| 473 if (scf_pg_get_name(pg, NULL, 0) < 0) | |
| 474 goto scfout; | |
| 475 | |
| 476 /* Iterate through. */ | |
| 477 iter = safe_scf_iter_create(hndl); | |
| 478 | |
| 479 (void) scf_iter_pg_properties(iter, pg); | |
| 480 | |
| 481 piter = safe_scf_iter_create(hndl); | |
| 482 vbuf = startd_alloc(max_scf_value_size); | |
| 483 | |
| 484 while ((scf_iter_next_property(iter, prop) == 1)) { | |
| 485 scf_type_t ty; | |
| 486 | |
| 487 if (scf_property_get_name(prop, buf, max_scf_fmri_size) < 0) | |
| 488 continue; | |
| 489 | |
| 490 if (strcmp(buf, "logging") != 0 && | |
| 491 strcmp(buf, "boot_messages") != 0) | |
| 492 continue; | |
| 493 | |
| 494 if (scf_property_type(prop, &ty) != 0) { | |
| 495 switch (scf_error()) { | |
| 496 case SCF_ERROR_CONNECTION_BROKEN: | |
| 497 default: | |
| 498 libscf_handle_rebind(hndl); | |
| 499 continue; | |
| 500 | |
| 501 case SCF_ERROR_DELETED: | |
| 502 continue; | |
| 503 | |
| 504 case SCF_ERROR_NOT_BOUND: | |
| 505 case SCF_ERROR_NOT_SET: | |
| 506 bad_error("scf_property_type", scf_error()); | |
| 507 } | |
| 508 } | |
| 509 | |
| 510 if (ty != SCF_TYPE_ASTRING) { | |
| 511 uu_warn("property \"options/%s\" is not of type " | |
| 512 "astring; ignored.\n", buf); | |
| 513 continue; | |
| 514 } | |
| 515 | |
| 516 if (scf_property_get_value(prop, val) != 0) { | |
| 517 switch (scf_error()) { | |
| 518 case SCF_ERROR_CONNECTION_BROKEN: | |
| 519 default: | |
| 520 return (ECONNABORTED); | |
| 521 | |
| 522 case SCF_ERROR_DELETED: | |
| 523 case SCF_ERROR_NOT_FOUND: | |
| 524 return (0); | |
| 525 | |
| 526 case SCF_ERROR_CONSTRAINT_VIOLATED: | |
| 527 uu_warn("property \"options/%s\" has multiple " | |
| 528 "values; ignored.\n", buf); | |
| 529 continue; | |
| 530 | |
|
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531 case SCF_ERROR_PERMISSION_DENIED: |
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532 uu_warn("property \"options/%s\" cannot be " |
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533 "read because startd has insufficient " |
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534 "permission; ignored.\n", buf); |
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535 continue; |
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536 |
| 0 | 537 case SCF_ERROR_HANDLE_MISMATCH: |
| 538 case SCF_ERROR_NOT_BOUND: | |
| 539 case SCF_ERROR_NOT_SET: | |
| 540 bad_error("scf_property_get_value", | |
| 541 scf_error()); | |
| 542 } | |
| 543 } | |
| 544 | |
| 545 if (scf_value_get_astring(val, vbuf, max_scf_value_size) < 0) | |
| 546 bad_error("scf_value_get_astring", scf_error()); | |
| 547 | |
| 1958 | 548 if (strcmp("logging", buf) == 0) { |
| 0 | 549 if (strcmp("verbose", vbuf) == 0) { |
| 550 st->st_boot_flags = STARTD_BOOT_VERBOSE; | |
| 551 st->st_log_level_min = LOG_INFO; | |
| 552 } else if (strcmp("debug", vbuf) == 0) { | |
| 553 st->st_boot_flags = STARTD_BOOT_VERBOSE; | |
| 554 st->st_log_level_min = LOG_DEBUG; | |
| 555 } else if (strcmp("quiet", vbuf) == 0) { | |
| 556 st->st_log_level_min = LOG_NOTICE; | |
| 557 } else { | |
| 558 uu_warn("unknown options/logging " | |
| 559 "value '%s' ignored\n", vbuf); | |
| 560 } | |
| 561 | |
| 562 } else if (strcmp("boot_messages", buf) == 0) { | |
| 563 if (strcmp("quiet", vbuf) == 0) { | |
| 564 st->st_boot_flags = STARTD_BOOT_QUIET; | |
| 565 } else if (strcmp("verbose", vbuf) == 0) { | |
| 566 st->st_boot_flags = STARTD_BOOT_VERBOSE; | |
| 567 } else { | |
| 568 log_framework(LOG_NOTICE, "unknown " | |
| 569 "options/boot_messages value '%s' " | |
| 570 "ignored\n", vbuf); | |
| 571 } | |
| 572 | |
| 573 } | |
| 574 } | |
| 575 | |
| 576 startd_free(vbuf, max_scf_value_size); | |
| 577 scf_iter_destroy(piter); | |
| 578 | |
| 579 scf_iter_destroy(iter); | |
| 580 | |
| 581 scfout: | |
| 582 scf_value_destroy(val); | |
| 583 scf_pg_destroy(pg); | |
| 584 scf_property_destroy(prop); | |
| 585 scf_instance_destroy(inst); | |
| 586 (void) scf_handle_unbind(hndl); | |
| 587 scf_handle_destroy(hndl); | |
| 588 | |
| 589 noscfout: | |
| 590 startd_free(buf, max_scf_fmri_size); | |
| 591 uu_free(startd_options_fmri); | |
| 592 uu_free(startd_reconfigure_fmri); | |
| 593 | |
| 594 if (booting_to_single_user) { | |
| 595 st->st_subgraph = startd_alloc(max_scf_fmri_size); | |
| 596 sz = strlcpy(st->st_subgraph, "milestone/single-user:default", | |
| 597 max_scf_fmri_size); | |
| 598 assert(sz < max_scf_fmri_size); | |
| 599 } | |
| 600 | |
| 601 /* | |
| 602 * Options passed in as boot arguments override repository defaults. | |
| 603 */ | |
| 604 env_opts = getenv("SMF_OPTIONS"); | |
| 605 if (env_opts == NULL) | |
| 606 return (ret); | |
| 607 | |
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608 for (cp = strtok_r(env_opts, ",", &lasts); cp != NULL; |
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609 cp = strtok_r(NULL, ",", &lasts)) { |
| 0 | 610 if (strcmp(cp, "debug") == 0) { |
| 611 st->st_boot_flags = STARTD_BOOT_VERBOSE; | |
| 612 st->st_log_level_min = LOG_DEBUG; | |
| 1958 | 613 |
| 614 /* -m debug should send messages to console */ | |
| 615 st->st_log_flags = | |
| 616 st->st_log_flags | STARTD_LOG_TERMINAL; | |
| 0 | 617 } else if (strcmp(cp, "verbose") == 0) { |
| 618 st->st_boot_flags = STARTD_BOOT_VERBOSE; | |
| 619 st->st_log_level_min = LOG_INFO; | |
| 620 } else if (strcmp(cp, "seed") == 0) { | |
| 621 uu_warn("SMF option \"%s\" unimplemented.\n", cp); | |
| 622 } else if (strcmp(cp, "quiet") == 0) { | |
| 623 st->st_log_level_min = LOG_NOTICE; | |
| 624 } else if (strncmp(cp, "milestone=", | |
| 625 sizeof ("milestone=") - 1) == 0) { | |
| 626 char *mp = cp + sizeof ("milestone=") - 1; | |
| 627 | |
| 628 if (booting_to_single_user) | |
| 629 continue; | |
| 630 | |
| 631 if (st->st_subgraph == NULL) { | |
| 632 st->st_subgraph = | |
| 633 startd_alloc(max_scf_fmri_size); | |
| 634 st->st_subgraph[0] = '\0'; | |
| 635 } | |
| 636 | |
| 637 if (mp[0] == '\0' || strcmp(mp, "all") == 0) { | |
| 638 (void) strcpy(st->st_subgraph, "all"); | |
| 639 } else if (strcmp(mp, "su") == 0 || | |
| 640 strcmp(mp, "single-user") == 0) { | |
| 641 (void) strcpy(st->st_subgraph, | |
| 642 "milestone/single-user:default"); | |
| 643 } else if (strcmp(mp, "mu") == 0 || | |
| 644 strcmp(mp, "multi-user") == 0) { | |
| 645 (void) strcpy(st->st_subgraph, | |
| 646 "milestone/multi-user:default"); | |
| 647 } else if (strcmp(mp, "mus") == 0 || | |
| 648 strcmp(mp, "multi-user-server") == 0) { | |
| 649 (void) strcpy(st->st_subgraph, | |
| 650 "milestone/multi-user-server:default"); | |
| 651 } else if (strcmp(mp, "none") == 0) { | |
| 652 (void) strcpy(st->st_subgraph, "none"); | |
| 653 } else { | |
| 654 log_framework(LOG_NOTICE, | |
| 655 "invalid milestone option value " | |
| 656 "'%s' ignored\n", mp); | |
| 657 } | |
| 658 } else { | |
| 659 uu_warn("Unknown SMF option \"%s\".\n", cp); | |
| 660 } | |
| 661 } | |
| 662 | |
| 663 return (ret); | |
| 664 } | |
| 665 | |
| 666 /* | |
| 667 * void set_boot_env() | |
| 668 * | |
| 669 * If -r was passed or /reconfigure exists, this is a reconfig | |
| 670 * reboot. We need to make sure that this information is given | |
| 671 * to the appropriate services the first time they're started | |
| 672 * by setting the system/reconfigure repository property, | |
| 673 * as well as pass the _INIT_RECONFIG variable on to the rcS | |
| 674 * start method so that legacy services can continue to use it. | |
| 675 * | |
| 676 * This function must never be called before contract_init(), as | |
| 677 * it sets st_initial. get_startd_config() sets prop_reconfig from | |
| 678 * pre-existing repository state. | |
| 679 */ | |
| 680 static void | |
| 681 set_boot_env() | |
| 682 { | |
| 683 struct stat sb; | |
| 684 int r; | |
| 685 | |
| 686 /* | |
| 687 * Check if property still is set -- indicates we didn't get | |
| 688 * far enough previously to unset it. Otherwise, if this isn't | |
| 689 * the first startup, don't re-process /reconfigure or the | |
| 690 * boot flag. | |
| 691 */ | |
| 692 if (prop_reconfig != 1 && st->st_initial != 1) | |
| 693 return; | |
| 694 | |
| 695 /* If /reconfigure exists, also set opt_reconfig. */ | |
| 696 if (stat("/reconfigure", &sb) != -1) | |
| 697 opt_reconfig = 1; | |
| 698 | |
| 699 /* Nothing to do. Just return. */ | |
| 700 if (opt_reconfig == 0 && prop_reconfig == 0) | |
| 701 return; | |
| 702 | |
| 703 /* | |
| 704 * Set startd's reconfigure property. This property is | |
| 705 * then cleared by successful completion of the single-user | |
| 706 * milestone. | |
| 707 */ | |
| 708 if (prop_reconfig != 1) { | |
| 709 r = libscf_set_reconfig(1); | |
| 710 switch (r) { | |
| 711 case 0: | |
| 712 break; | |
| 713 | |
| 714 case ENOENT: | |
| 715 case EPERM: | |
| 716 case EACCES: | |
| 717 case EROFS: | |
| 718 log_error(LOG_WARNING, "Could not set reconfiguration " | |
| 719 "property: %s\n", strerror(r)); | |
| 720 break; | |
| 721 | |
| 722 default: | |
| 723 bad_error("libscf_set_reconfig", r); | |
| 724 } | |
| 725 } | |
| 726 } | |
| 727 | |
| 728 static void | |
| 1958 | 729 startup(void) |
| 0 | 730 { |
| 731 ctid_t configd_ctid; | |
| 732 int err; | |
| 733 | |
| 734 /* | |
| 735 * Initialize data structures. | |
| 736 */ | |
| 737 gu = startd_zalloc(sizeof (graph_update_t)); | |
| 738 ru = startd_zalloc(sizeof (restarter_update_t)); | |
| 739 | |
| 740 (void) pthread_cond_init(&st->st_load_cv, NULL); | |
| 741 (void) pthread_cond_init(&st->st_configd_live_cv, NULL); | |
| 742 (void) pthread_cond_init(&gu->gu_cv, NULL); | |
| 743 (void) pthread_cond_init(&gu->gu_freeze_cv, NULL); | |
| 744 (void) pthread_cond_init(&ru->restarter_update_cv, NULL); | |
| 745 (void) pthread_mutex_init(&st->st_load_lock, &mutex_attrs); | |
| 746 (void) pthread_mutex_init(&st->st_configd_live_lock, &mutex_attrs); | |
| 747 (void) pthread_mutex_init(&gu->gu_lock, &mutex_attrs); | |
| 748 (void) pthread_mutex_init(&gu->gu_freeze_lock, &mutex_attrs); | |
| 749 (void) pthread_mutex_init(&ru->restarter_update_lock, &mutex_attrs); | |
| 750 | |
| 751 configd_ctid = contract_init(); | |
| 752 | |
| 753 if (configd_ctid != -1) | |
| 754 log_framework(LOG_DEBUG, "Existing configd contract %ld; not " | |
| 755 "starting svc.configd\n", configd_ctid); | |
| 756 | |
| 757 (void) startd_thread_create(fork_configd_thread, (void *)configd_ctid); | |
| 758 | |
| 759 /* | |
| 760 * Await, if necessary, configd's initial arrival. | |
| 761 */ | |
| 762 MUTEX_LOCK(&st->st_configd_live_lock); | |
| 763 while (!st->st_configd_lives) { | |
| 764 log_framework(LOG_DEBUG, "Awaiting cv signal on " | |
| 765 "configd_live_cv\n"); | |
| 766 err = pthread_cond_wait(&st->st_configd_live_cv, | |
| 767 &st->st_configd_live_lock); | |
| 768 assert(err == 0); | |
| 769 } | |
| 770 MUTEX_UNLOCK(&st->st_configd_live_lock); | |
| 771 | |
| 772 utmpx_init(); | |
| 773 wait_init(); | |
| 774 | |
| 1958 | 775 if (read_startd_config()) |
| 0 | 776 log_framework(LOG_INFO, "svc.configd unable to provide startd " |
| 777 "optional settings\n"); | |
| 778 | |
| 779 log_init(); | |
| 780 dict_init(); | |
| 781 timeout_init(); | |
| 782 restarter_protocol_init(); | |
| 783 restarter_init(); | |
| 784 graph_protocol_init(); | |
| 785 graph_init(); | |
| 786 | |
| 787 init_env(); | |
| 788 | |
| 789 set_boot_env(); | |
| 790 restarter_start(); | |
| 791 graph_engine_start(); | |
| 792 } | |
| 793 | |
| 794 static void | |
| 795 usage(const char *name) | |
| 796 { | |
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797 uu_warn(gettext("usage: %s [-n]\n"), name); |
| 0 | 798 exit(UU_EXIT_USAGE); |
| 799 } | |
| 800 | |
| 801 static int | |
| 802 daemonize_start(void) | |
| 803 { | |
| 804 pid_t pid; | |
| 805 int fd; | |
| 806 | |
| 807 if ((pid = fork1()) < 0) | |
| 808 return (-1); | |
| 809 | |
| 810 if (pid != 0) | |
| 811 exit(0); | |
| 812 | |
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813 (void) close(STDIN_FILENO); |
| 0 | 814 |
| 815 if ((fd = open("/dev/null", O_RDONLY)) == -1) { | |
| 816 uu_warn(gettext("can't connect stdin to /dev/null")); | |
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817 } else if (fd != STDIN_FILENO) { |
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818 (void) dup2(fd, STDIN_FILENO); |
| 0 | 819 startd_close(fd); |
| 820 } | |
| 821 | |
| 822 closefrom(3); | |
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823 (void) dup2(STDERR_FILENO, STDOUT_FILENO); |
| 0 | 824 |
| 825 (void) setsid(); | |
| 826 (void) chdir("/"); | |
| 827 | |
| 828 /* Use default umask that init handed us, but 022 to create files. */ | |
| 829 dmask = umask(022); | |
| 830 fmask = umask(dmask); | |
| 831 | |
| 832 return (0); | |
| 833 } | |
| 834 | |
| 835 /*ARGSUSED*/ | |
| 836 static void | |
| 837 die_handler(int sig, siginfo_t *info, void *data) | |
| 838 { | |
| 839 finished = 1; | |
| 840 } | |
| 841 | |
| 842 int | |
| 843 main(int argc, char *argv[]) | |
| 844 { | |
| 845 int opt; | |
| 846 int daemonize = 1; | |
| 847 struct sigaction act; | |
| 848 sigset_t nullset; | |
| 849 struct stat sb; | |
| 850 | |
| 851 (void) uu_setpname(argv[0]); | |
| 852 | |
| 853 st = startd_zalloc(sizeof (startd_state_t)); | |
| 854 | |
| 855 (void) pthread_mutexattr_init(&mutex_attrs); | |
| 856 #ifndef NDEBUG | |
| 857 (void) pthread_mutexattr_settype(&mutex_attrs, | |
| 858 PTHREAD_MUTEX_ERRORCHECK); | |
| 859 #endif | |
| 860 | |
| 861 max_scf_name_size = scf_limit(SCF_LIMIT_MAX_NAME_LENGTH); | |
| 862 max_scf_value_size = scf_limit(SCF_LIMIT_MAX_VALUE_LENGTH); | |
| 863 max_scf_fmri_size = scf_limit(SCF_LIMIT_MAX_FMRI_LENGTH); | |
| 864 | |
| 865 if (max_scf_name_size == -1 || max_scf_value_size == -1 || | |
| 866 max_scf_value_size == -1) | |
| 867 uu_die("Can't determine repository maximum lengths.\n"); | |
| 868 | |
| 869 max_scf_name_size++; | |
| 870 max_scf_value_size++; | |
| 871 max_scf_fmri_size++; | |
| 872 | |
| 1958 | 873 st->st_log_flags = STARTD_LOG_FILE | STARTD_LOG_SYSLOG; |
| 874 st->st_log_level_min = LOG_NOTICE; | |
| 0 | 875 |
| 1958 | 876 while ((opt = getopt(argc, argv, "nrs")) != EOF) { |
| 0 | 877 switch (opt) { |
| 878 case 'n': | |
| 879 daemonize = 0; | |
| 880 break; | |
| 881 case 'r': /* reconfiguration boot */ | |
| 882 opt_reconfig = 1; | |
| 883 break; | |
| 884 case 's': /* single-user mode */ | |
| 885 booting_to_single_user = B_TRUE; | |
| 886 break; | |
| 887 default: | |
| 888 usage(argv[0]); /* exits */ | |
| 889 } | |
| 890 } | |
| 891 | |
| 892 if (optind != argc) | |
| 893 usage(argv[0]); | |
| 894 | |
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895 (void) enable_extended_FILE_stdio(-1, -1); |
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896 |
| 0 | 897 if (daemonize) |
| 898 if (daemonize_start() < 0) | |
| 899 uu_die("Can't daemonize\n"); | |
| 900 | |
| 901 log_init(); | |
| 902 | |
| 903 if (stat("/etc/svc/volatile/resetting", &sb) != -1) { | |
| 904 log_framework(LOG_NOTICE, "Restarter quiesced.\n"); | |
| 905 | |
| 906 for (;;) | |
| 907 (void) pause(); | |
| 908 } | |
| 909 | |
| 910 act.sa_sigaction = &die_handler; | |
| 911 (void) sigfillset(&act.sa_mask); | |
| 912 act.sa_flags = SA_SIGINFO; | |
| 913 (void) sigaction(SIGINT, &act, NULL); | |
| 914 (void) sigaction(SIGTERM, &act, NULL); | |
| 915 | |
| 1958 | 916 startup(); |
| 0 | 917 |
| 918 (void) sigemptyset(&nullset); | |
| 919 while (!finished) { | |
| 920 log_framework(LOG_DEBUG, "Main thread paused\n"); | |
| 921 (void) sigsuspend(&nullset); | |
| 922 } | |
| 923 | |
| 924 (void) log_framework(LOG_DEBUG, "Restarter exiting.\n"); | |
| 925 return (0); | |
| 926 } |