projects / thirdparty / systemd.git / blame
| Commit | Line | Data |
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| 95ed3294 TA |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
| 2 | ||
| 3 | /*** | |
| 4 | This file is part of systemd. | |
| 5 | ||
| 6 | Copyright 2014 Thomas H.P. Andersen | |
| 7 | Copyright 2010 Lennart Poettering | |
| 8 | Copyright 2011 Michal Schmidt | |
| 9 | ||
| 10 | systemd is free software; you can redistribute it and/or modify it | |
| 11 | under the terms of the GNU Lesser General Public License as published by | |
| 12 | the Free Software Foundation; either version 2.1 of the License, or | |
| 13 | (at your option) any later version. | |
| 14 | ||
| 15 | systemd is distributed in the hope that it will be useful, but | |
| 16 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 18 | Lesser General Public License for more details. | |
| 19 | ||
| 20 | You should have received a copy of the GNU Lesser General Public License | |
| 21 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
| 22 | ***/ | |
| 23 | ||
| 24 | #include <errno.h> | |
| 25 | #include <stdio.h> | |
| 26 | #include <unistd.h> | |
| 27 | ||
| 28 | #include "util.h" | |
| 29 | #include "mkdir.h" | |
| 30 | #include "strv.h" | |
| 31 | #include "path-util.h" | |
| 32 | #include "path-lookup.h" | |
| 33 | #include "log.h" | |
| 34 | #include "strv.h" | |
| 35 | #include "unit.h" | |
| 36 | #include "unit-name.h" | |
| 37 | #include "special.h" | |
| 38 | #include "exit-status.h" | |
| 39 | #include "def.h" | |
| 40 | #include "env-util.h" | |
| 41 | #include "fileio.h" | |
| 42 | #include "hashmap.h" | |
| 43 | ||
| 44 | typedef enum RunlevelType { | |
| 45 | RUNLEVEL_UP, | |
| 46 | RUNLEVEL_DOWN | |
| 47 | } RunlevelType; | |
| 48 | ||
| 49 | static const struct { | |
| 50 | const char *path; | |
| 51 | const char *target; | |
| 52 | const RunlevelType type; | |
| 53 | } rcnd_table[] = { | |
| 54 | /* Standard SysV runlevels for start-up */ | |
| 55 | { "rc1.d", SPECIAL_RESCUE_TARGET, RUNLEVEL_UP }, | |
| 56 | { "rc2.d", SPECIAL_RUNLEVEL2_TARGET, RUNLEVEL_UP }, | |
| 57 | { "rc3.d", SPECIAL_RUNLEVEL3_TARGET, RUNLEVEL_UP }, | |
| 58 | { "rc4.d", SPECIAL_RUNLEVEL4_TARGET, RUNLEVEL_UP }, | |
| 59 | { "rc5.d", SPECIAL_RUNLEVEL5_TARGET, RUNLEVEL_UP }, | |
| 60 | ||
| 61 | /* Standard SysV runlevels for shutdown */ | |
| 62 | { "rc0.d", SPECIAL_POWEROFF_TARGET, RUNLEVEL_DOWN }, | |
| 63 | { "rc6.d", SPECIAL_REBOOT_TARGET, RUNLEVEL_DOWN } | |
| 64 | ||
| 65 | /* Note that the order here matters, as we read the | |
| 66 | directories in this order, and we want to make sure that | |
| 67 | sysv_start_priority is known when we first load the | |
| 68 | unit. And that value we only know from S links. Hence | |
| 69 | UP must be read before DOWN */ | |
| 70 | }; | |
| 71 | ||
| 72 | typedef struct SysvStub { | |
| 73 | char *name; | |
| 74 | char *path; | |
| 75 | char *description; | |
| 76 | int sysv_start_priority; | |
| 77 | char *pid_file; | |
| 78 | char **before; | |
| 79 | char **after; | |
| 80 | char **wants; | |
| 81 | char **conflicts; | |
| 82 | bool has_lsb; | |
| 83 | bool reload; | |
| 84 | } SysvStub; | |
| 85 | ||
| 86 | const char *arg_dest = "/tmp"; | |
| 87 | ||
| 88 | static int add_symlink(const char *service, const char *where) { | |
| 89 | _cleanup_free_ char *from = NULL, *to = NULL; | |
| 90 | int r; | |
| 91 | ||
| 92 | assert(service); | |
| 93 | assert(where); | |
| 94 | ||
| 95 | from = strjoin(arg_dest, "/", service, NULL); | |
| 96 | if (!from) | |
| 97 | return log_oom(); | |
| 98 | ||
| 99 | to = strjoin(arg_dest, "/", where, ".wants/", service, NULL); | |
| 100 | if (!to) | |
| 101 | return log_oom(); | |
| 102 | ||
| 103 | mkdir_parents_label(to, 0755); | |
| 104 | ||
| 105 | r = symlink(from, to); | |
| 106 | if (r < 0) { | |
| 107 | if (errno == EEXIST) | |
| 108 | return 0; | |
| 109 | return -errno; | |
| 110 | } | |
| 111 | ||
| 112 | return 1; | |
| 113 | } | |
| 114 | ||
| 115 | static int generate_unit_file(SysvStub *s) { | |
| 116 | char *unit; | |
| 117 | char **p; | |
| 118 | _cleanup_fclose_ FILE *f = NULL; | |
| 119 | _cleanup_free_ char *before = NULL; | |
| 120 | _cleanup_free_ char *after = NULL; | |
| 121 | _cleanup_free_ char *conflicts = NULL; | |
| 122 | int r; | |
| 123 | ||
| 124 | before = strv_join(s->before, " "); | |
| 125 | if (!before) | |
| 126 | return log_oom(); | |
| 127 | ||
| 128 | after = strv_join(s->after, " "); | |
| 129 | if (!after) | |
| 130 | return log_oom(); | |
| 131 | ||
| 132 | conflicts = strv_join(s->conflicts, " "); | |
| 133 | if (!conflicts) | |
| 134 | return log_oom(); | |
| 135 | ||
| 136 | unit = strjoin(arg_dest, "/", s->name, NULL); | |
| 137 | if (!unit) | |
| 138 | return log_oom(); | |
| 139 | ||
| 140 | f = fopen(unit, "wxe"); | |
| 141 | if (!f) { | |
| 142 | log_error("Failed to create unit file %s: %m", unit); | |
| 143 | return -errno; | |
| 144 | } | |
| 145 | ||
| 146 | fprintf(f, | |
| 147 | "# Automatically generated by systemd-sysv-generator\n\n" | |
| 148 | "[Unit]\n" | |
| 149 | "SourcePath=%s\n" | |
| 150 | "Description=%s\n", | |
| 151 | s->path, s->description); | |
| 152 | ||
| 153 | if (!isempty(before)) | |
| 154 | fprintf(f, "Before=%s\n", before); | |
| 155 | if (!isempty(after)) | |
| 156 | fprintf(f, "After=%s\n", after); | |
| 157 | if (!isempty(conflicts)) | |
| 158 | fprintf(f, "Conflicts=%s\n", conflicts); | |
| 159 | ||
| 160 | fprintf(f, | |
| 161 | "\n[Service]\n" | |
| 162 | "Type=forking\n" | |
| 163 | "Restart=no\n" | |
| 164 | "TimeoutSec=5min\n" | |
| 165 | "IgnoreSIGPIPE=no\n" | |
| 166 | "KillMode=process\n" | |
| 167 | "GuessMainPID=no\n" | |
| 168 | "RemainAfterExit=%s\n", | |
| 169 | yes_no(!s->pid_file)); | |
| 170 | ||
| 171 | if (s->sysv_start_priority > 0) | |
| 172 | fprintf(f, "SysVStartPriority=%d\n", s->sysv_start_priority); | |
| 173 | ||
| 174 | if (s->pid_file) | |
| 175 | fprintf(f, "PidFile=%s\n", s->pid_file); | |
| 176 | ||
| 177 | fprintf(f, | |
| 178 | "ExecStart=%s start\n" | |
| 179 | "ExecStop=%s stop\n", | |
| 180 | s->path, s->path); | |
| 181 | ||
| 182 | if (s->reload) | |
| 183 | fprintf(f, "ExecReload=%s reload\n", s->path); | |
| 184 | ||
| 185 | STRV_FOREACH(p, s->wants) { | |
| 186 | r = add_symlink(s->name, *p); | |
| 187 | if (r < 0) | |
| 188 | log_error_unit(s->name, "Failed to create 'Wants' symlink to %s: %s", *p, strerror(-r)); | |
| 189 | } | |
| 190 | ||
| 191 | return 0; | |
| 192 | } | |
| 193 | ||
| 194 | static bool usage_contains_reload(const char *line) { | |
| 195 | return (strcasestr(line, "{reload|") || | |
| 196 | strcasestr(line, "{reload}") || | |
| 197 | strcasestr(line, "{reload\"") || | |
| 198 | strcasestr(line, "|reload|") || | |
| 199 | strcasestr(line, "|reload}") || | |
| 200 | strcasestr(line, "|reload\"")); | |
| 201 | } | |
| 202 | ||
| 203 | static char *sysv_translate_name(const char *name) { | |
| 204 | char *r; | |
| 205 | ||
| 206 | r = new(char, strlen(name) + strlen(".service") + 1); | |
| 207 | if (!r) | |
| 208 | return NULL; | |
| 209 | ||
| 210 | if (endswith(name, ".sh")) | |
| 211 | /* Drop .sh suffix */ | |
| 212 | strcpy(stpcpy(r, name) - 3, ".service"); | |
| 213 | else | |
| 214 | /* Normal init script name */ | |
| 215 | strcpy(stpcpy(r, name), ".service"); | |
| 216 | ||
| 217 | return r; | |
| 218 | } | |
| 219 | ||
| 220 | static int sysv_translate_facility(const char *name, const char *filename, char **_r) { | |
| 221 | ||
| 222 | /* We silently ignore the $ prefix here. According to the LSB | |
| 223 | * spec it simply indicates whether something is a | |
| 224 | * standardized name or a distribution-specific one. Since we | |
| 225 | * just follow what already exists and do not introduce new | |
| 226 | * uses or names we don't care who introduced a new name. */ | |
| 227 | ||
| 228 | static const char * const table[] = { | |
| 229 | /* LSB defined facilities */ | |
| 230 | "local_fs", NULL, | |
| 231 | "network", SPECIAL_NETWORK_ONLINE_TARGET, | |
| 232 | "named", SPECIAL_NSS_LOOKUP_TARGET, | |
| 233 | "portmap", SPECIAL_RPCBIND_TARGET, | |
| 234 | "remote_fs", SPECIAL_REMOTE_FS_TARGET, | |
| 235 | "syslog", NULL, | |
| 236 | "time", SPECIAL_TIME_SYNC_TARGET, | |
| 237 | }; | |
| 238 | ||
| 239 | unsigned i; | |
| 240 | char *r; | |
| 241 | const char *n; | |
| 242 | ||
| 243 | assert(name); | |
| 244 | assert(_r); | |
| 245 | ||
| 246 | n = *name == '$' ? name + 1 : name; | |
| 247 | ||
| 248 | for (i = 0; i < ELEMENTSOF(table); i += 2) { | |
| 249 | ||
| 250 | if (!streq(table[i], n)) | |
| 251 | continue; | |
| 252 | ||
| 253 | if (!table[i+1]) | |
| 254 | return 0; | |
| 255 | ||
| 256 | r = strdup(table[i+1]); | |
| 257 | if (!r) | |
| 258 | return log_oom(); | |
| 259 | ||
| 260 | goto finish; | |
| 261 | } | |
| 262 | ||
| 263 | /* If we don't know this name, fallback heuristics to figure | |
| 264 | * out whether something is a target or a service alias. */ | |
| 265 | ||
| 266 | if (*name == '$') { | |
| 267 | if (!unit_prefix_is_valid(n)) | |
| 268 | return -EINVAL; | |
| 269 | ||
| 270 | /* Facilities starting with $ are most likely targets */ | |
| 271 | r = unit_name_build(n, NULL, ".target"); | |
| 272 | } else if (filename && streq(name, filename)) | |
| 273 | /* Names equaling the file name of the services are redundant */ | |
| 274 | return 0; | |
| 275 | else | |
| 276 | /* Everything else we assume to be normal service names */ | |
| 277 | r = sysv_translate_name(n); | |
| 278 | ||
| 279 | if (!r) | |
| 280 | return -ENOMEM; | |
| 281 | ||
| 282 | finish: | |
| 283 | *_r = r; | |
| 284 | ||
| 285 | return 1; | |
| 286 | } | |
| 287 | ||
| 288 | static int load_sysv(SysvStub *s) { | |
| 289 | _cleanup_fclose_ FILE *f; | |
| 290 | unsigned line = 0; | |
| 291 | int r; | |
| 292 | enum { | |
| 293 | NORMAL, | |
| 294 | DESCRIPTION, | |
| 295 | LSB, | |
| 296 | LSB_DESCRIPTION, | |
| 297 | USAGE_CONTINUATION | |
| 298 | } state = NORMAL; | |
| 299 | _cleanup_free_ char *short_description = NULL, *long_description = NULL, *chkconfig_description = NULL; | |
| 300 | char *description; | |
| 301 | bool supports_reload = false; | |
| 302 | ||
| 303 | assert(s); | |
| 304 | ||
| 305 | f = fopen(s->path, "re"); | |
| 306 | if (!f) | |
| 307 | return errno == ENOENT ? 0 : -errno; | |
| 308 | ||
| 309 | while (!feof(f)) { | |
| 310 | char l[LINE_MAX], *t; | |
| 311 | ||
| 312 | if (!fgets(l, sizeof(l), f)) { | |
| 313 | if (feof(f)) | |
| 314 | break; | |
| 315 | ||
| 316 | log_error_unit(s->name, | |
| 317 | "Failed to read configuration file '%s': %m", | |
| 318 | s->path); | |
| 319 | return -errno; | |
| 320 | } | |
| 321 | ||
| 322 | line++; | |
| 323 | ||
| 324 | t = strstrip(l); | |
| 325 | if (*t != '#') { | |
| 326 | /* Try to figure out whether this init script supports | |
| 327 | * the reload operation. This heuristic looks for | |
| 328 | * "Usage" lines which include the reload option. */ | |
| 329 | if ( state == USAGE_CONTINUATION || | |
| 330 | (state == NORMAL && strcasestr(t, "usage"))) { | |
| 331 | if (usage_contains_reload(t)) { | |
| 332 | supports_reload = true; | |
| 333 | state = NORMAL; | |
| 334 | } else if (t[strlen(t)-1] == '\\') | |
| 335 | state = USAGE_CONTINUATION; | |
| 336 | else | |
| 337 | state = NORMAL; | |
| 338 | } | |
| 339 | ||
| 340 | continue; | |
| 341 | } | |
| 342 | ||
| 343 | if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) { | |
| 344 | state = LSB; | |
| 345 | s->has_lsb = true; | |
| 346 | continue; | |
| 347 | } | |
| 348 | ||
| 349 | if ((state == LSB_DESCRIPTION || state == LSB) && streq(t, "### END INIT INFO")) { | |
| 350 | state = NORMAL; | |
| 351 | continue; | |
| 352 | } | |
| 353 | ||
| 354 | t++; | |
| 355 | t += strspn(t, WHITESPACE); | |
| 356 | ||
| 357 | if (state == NORMAL) { | |
| 358 | ||
| 359 | /* Try to parse Red Hat style description */ | |
| 360 | ||
| 361 | if (startswith_no_case(t, "description:")) { | |
| 362 | ||
| 363 | size_t k = strlen(t); | |
| 364 | char *d; | |
| 365 | const char *j; | |
| 366 | ||
| 367 | if (t[k-1] == '\\') { | |
| 368 | state = DESCRIPTION; | |
| 369 | t[k-1] = 0; | |
| 370 | } | |
| 371 | ||
| 372 | j = strstrip(t+12); | |
| 373 | if (j && *j) { | |
| 374 | d = strdup(j); | |
| 375 | if (!d) | |
| 376 | return -ENOMEM; | |
| 377 | } else | |
| 378 | d = NULL; | |
| 379 | ||
| 380 | free(chkconfig_description); | |
| 381 | chkconfig_description = d; | |
| 382 | ||
| 383 | } else if (startswith_no_case(t, "pidfile:")) { | |
| 384 | ||
| 385 | char *fn; | |
| 386 | ||
| 387 | state = NORMAL; | |
| 388 | ||
| 389 | fn = strstrip(t+8); | |
| 390 | if (!path_is_absolute(fn)) { | |
| 391 | log_error_unit(s->name, | |
| 392 | "[%s:%u] PID file not absolute. Ignoring.", | |
| 393 | s->path, line); | |
| 394 | continue; | |
| 395 | } | |
| 396 | ||
| 397 | fn = strdup(fn); | |
| 398 | if (!fn) | |
| 399 | return -ENOMEM; | |
| 400 | ||
| 401 | free(s->pid_file); | |
| 402 | s->pid_file = fn; | |
| 403 | } | |
| 404 | ||
| 405 | } else if (state == DESCRIPTION) { | |
| 406 | ||
| 407 | /* Try to parse Red Hat style description | |
| 408 | * continuation */ | |
| 409 | ||
| 410 | size_t k = strlen(t); | |
| 411 | char *j; | |
| 412 | ||
| 413 | if (t[k-1] == '\\') | |
| 414 | t[k-1] = 0; | |
| 415 | else | |
| 416 | state = NORMAL; | |
| 417 | ||
| 418 | j = strstrip(t); | |
| 419 | if (j && *j) { | |
| 420 | char *d = NULL; | |
| 421 | ||
| 422 | if (chkconfig_description) | |
| 423 | d = strjoin(chkconfig_description, " ", j, NULL); | |
| 424 | else | |
| 425 | d = strdup(j); | |
| 426 | ||
| 427 | if (!d) | |
| 428 | return -ENOMEM; | |
| 429 | ||
| 430 | free(chkconfig_description); | |
| 431 | chkconfig_description = d; | |
| 432 | } | |
| 433 | ||
| 434 | } else if (state == LSB || state == LSB_DESCRIPTION) { | |
| 435 | ||
| 436 | if (startswith_no_case(t, "Provides:")) { | |
| 437 | char *i, *w; | |
| 438 | size_t z; | |
| 439 | ||
| 440 | state = LSB; | |
| 441 | ||
| 442 | FOREACH_WORD_QUOTED(w, z, t+9, i) { | |
| 443 | _cleanup_free_ char *n = NULL, *m = NULL; | |
| 444 | ||
| 445 | n = strndup(w, z); | |
| 446 | if (!n) | |
| 447 | return -ENOMEM; | |
| 448 | ||
| 449 | r = sysv_translate_facility(n, basename(s->path), &m); | |
| 450 | ||
| 451 | if (r < 0) | |
| 452 | return r; | |
| 453 | ||
| 454 | if (r == 0) | |
| 455 | continue; | |
| 456 | ||
| 457 | if (unit_name_to_type(m) != UNIT_SERVICE) { | |
| 458 | /* NB: SysV targets | |
| 459 | * which are provided | |
| 460 | * by a service are | |
| 461 | * pulled in by the | |
| 462 | * services, as an | |
| 463 | * indication that the | |
| 464 | * generic service is | |
| 465 | * now available. This | |
| 466 | * is strictly | |
| 467 | * one-way. The | |
| 468 | * targets do NOT pull | |
| 469 | * in the SysV | |
| 470 | * services! */ | |
| 471 | r = strv_extend(&s->before, m); | |
| 472 | if (r < 0) | |
| 473 | return log_oom(); | |
| 474 | r = strv_extend(&s->wants, m); | |
| 475 | if (r < 0) | |
| 476 | return log_oom(); | |
| 477 | } | |
| 478 | ||
| 479 | if (r < 0) | |
| 480 | log_error_unit(s->name, | |
| 481 | "[%s:%u] Failed to add LSB Provides name %s, ignoring: %s", | |
| 482 | s->path, line, m, strerror(-r)); | |
| 483 | } | |
| 484 | ||
| 485 | } else if (startswith_no_case(t, "Required-Start:") || | |
| 486 | startswith_no_case(t, "Should-Start:") || | |
| 487 | startswith_no_case(t, "X-Start-Before:") || | |
| 488 | startswith_no_case(t, "X-Start-After:")) { | |
| 489 | char *i, *w; | |
| 490 | size_t z; | |
| 491 | ||
| 492 | state = LSB; | |
| 493 | ||
| 494 | FOREACH_WORD_QUOTED(w, z, strchr(t, ':')+1, i) { | |
| 495 | _cleanup_free_ char *n = NULL, *m = NULL; | |
| 496 | bool is_before; | |
| 497 | ||
| 498 | n = strndup(w, z); | |
| 499 | if (!n) | |
| 500 | return -ENOMEM; | |
| 501 | ||
| 502 | r = sysv_translate_facility(n, basename(s->path), &m); | |
| 503 | if (r < 0) { | |
| 504 | log_error_unit(s->name, | |
| 505 | "[%s:%u] Failed to translate LSB dependency %s, ignoring: %s", | |
| 506 | s->path, line, n, strerror(-r)); | |
| 507 | continue; | |
| 508 | } | |
| 509 | ||
| 510 | if (r == 0) | |
| 511 | continue; | |
| 512 | ||
| 513 | is_before = startswith_no_case(t, "X-Start-Before:"); | |
| 514 | ||
| 515 | if (streq(m, SPECIAL_NETWORK_ONLINE_TARGET) && !is_before) { | |
| 516 | /* the network-online target is special, as it needs to be actively pulled in */ | |
| 517 | r = strv_extend(&s->after, m); | |
| 518 | if (r < 0) | |
| 519 | return log_oom(); | |
| 520 | r = strv_extend(&s->wants, m); | |
| 521 | if (r < 0) | |
| 522 | return log_oom(); | |
| 523 | } | |
| 524 | else { | |
| 525 | if (is_before) { | |
| 526 | r = strv_extend(&s->before, m); | |
| 527 | if (r < 0) | |
| 528 | return log_oom(); | |
| 529 | } | |
| 530 | else { | |
| 531 | r = strv_extend(&s->after, m); | |
| 532 | if (r < 0) | |
| 533 | return log_oom(); | |
| 534 | } | |
| 535 | } | |
| 536 | ||
| 537 | if (r < 0) | |
| 538 | log_error_unit(s->name, | |
| 539 | "[%s:%u] Failed to add dependency on %s, ignoring: %s", | |
| 540 | s->path, line, m, strerror(-r)); | |
| 541 | } | |
| 542 | ||
| 543 | } else if (startswith_no_case(t, "Description:")) { | |
| 544 | char *d, *j; | |
| 545 | ||
| 546 | state = LSB_DESCRIPTION; | |
| 547 | ||
| 548 | j = strstrip(t+12); | |
| 549 | if (j && *j) { | |
| 550 | d = strdup(j); | |
| 551 | if (!d) | |
| 552 | return -ENOMEM; | |
| 553 | } else | |
| 554 | d = NULL; | |
| 555 | ||
| 556 | free(long_description); | |
| 557 | long_description = d; | |
| 558 | ||
| 559 | } else if (startswith_no_case(t, "Short-Description:")) { | |
| 560 | char *d, *j; | |
| 561 | ||
| 562 | state = LSB; | |
| 563 | ||
| 564 | j = strstrip(t+18); | |
| 565 | if (j && *j) { | |
| 566 | d = strdup(j); | |
| 567 | if (!d) | |
| 568 | return -ENOMEM; | |
| 569 | } else | |
| 570 | d = NULL; | |
| 571 | ||
| 572 | free(short_description); | |
| 573 | short_description = d; | |
| 574 | ||
| 575 | } else if (state == LSB_DESCRIPTION) { | |
| 576 | ||
| 577 | if (startswith(l, "#\t") || startswith(l, "# ")) { | |
| 578 | char *j; | |
| 579 | ||
| 580 | j = strstrip(t); | |
| 581 | if (j && *j) { | |
| 582 | char *d = NULL; | |
| 583 | ||
| 584 | if (long_description) | |
| 585 | d = strjoin(long_description, " ", t, NULL); | |
| 586 | else | |
| 587 | d = strdup(j); | |
| 588 | ||
| 589 | if (!d) | |
| 590 | return -ENOMEM; | |
| 591 | ||
| 592 | free(long_description); | |
| 593 | long_description = d; | |
| 594 | } | |
| 595 | ||
| 596 | } else | |
| 597 | state = LSB; | |
| 598 | } | |
| 599 | } | |
| 600 | } | |
| 601 | ||
| 602 | s->reload = supports_reload; | |
| 603 | ||
| 604 | /* We use the long description only if | |
| 605 | * no short description is set. */ | |
| 606 | ||
| 607 | if (short_description) | |
| 608 | description = short_description; | |
| 609 | else if (chkconfig_description) | |
| 610 | description = chkconfig_description; | |
| 611 | else if (long_description) | |
| 612 | description = long_description; | |
| 613 | else | |
| 614 | description = NULL; | |
| 615 | ||
| 616 | if (description) { | |
| 617 | char *d; | |
| 618 | ||
| 619 | d = strappend(s->has_lsb ? "LSB: " : "SYSV: ", description); | |
| 620 | if (!d) | |
| 621 | return -ENOMEM; | |
| 622 | ||
| 623 | s->description = d; | |
| 624 | } | |
| 625 | ||
| 626 | return 0; | |
| 627 | } | |
| 628 | ||
| 629 | static int fix_order(SysvStub *s, Hashmap *all_services) { | |
| 630 | SysvStub *other; | |
| 631 | Iterator j; | |
| 632 | int r; | |
| 633 | ||
| 634 | assert(s); | |
| 635 | ||
| 636 | if (s->sysv_start_priority < 0) | |
| 637 | return 0; | |
| 638 | ||
| 639 | HASHMAP_FOREACH(other, all_services, j) { | |
| 640 | if (s == other) | |
| 641 | continue; | |
| 642 | ||
| 643 | if (other->sysv_start_priority < 0) | |
| 644 | continue; | |
| 645 | ||
| 646 | /* If both units have modern headers we don't care | |
| 647 | * about the priorities */ | |
| 648 | if (s->has_lsb && other->has_lsb) | |
| 649 | continue; | |
| 650 | ||
| 651 | if (other->sysv_start_priority < s->sysv_start_priority) { | |
| 652 | r = strv_extend(&s->after, other->name); | |
| 653 | if (r < 0) | |
| 654 | return log_oom(); | |
| 655 | } | |
| 656 | else if (other->sysv_start_priority > s->sysv_start_priority) { | |
| 657 | r = strv_extend(&s->before, other->name); | |
| 658 | if (r < 0) | |
| 659 | return log_oom(); | |
| 660 | } | |
| 661 | else | |
| 662 | continue; | |
| 663 | ||
| 664 | /* FIXME: Maybe we should compare the name here lexicographically? */ | |
| 665 | } | |
| 666 | ||
| 667 | return 0; | |
| 668 | } | |
| 669 | ||
| 670 | static int enumerate_sysv(LookupPaths lp, Hashmap *all_services) { | |
| 671 | char **path; | |
| 672 | ||
| 673 | STRV_FOREACH(path, lp.sysvinit_path) { | |
| 674 | _cleanup_closedir_ DIR *d = NULL; | |
| 675 | struct dirent *de; | |
| 676 | ||
| 677 | d = opendir(*path); | |
| 678 | if (!d) { | |
| 679 | if (errno != ENOENT) | |
| 680 | log_warning("opendir(%s) failed: %m", *path); | |
| 681 | continue; | |
| 682 | } | |
| 683 | ||
| 684 | while ((de = readdir(d))) { | |
| 685 | SysvStub *service; | |
| 686 | struct stat st; | |
| 687 | _cleanup_free_ char *fpath = NULL, *name = NULL; | |
| 688 | int r; | |
| 689 | ||
| 690 | if (ignore_file(de->d_name)) | |
| 691 | continue; | |
| 692 | ||
| 693 | fpath = strjoin(*path, "/", de->d_name, NULL); | |
| 694 | if (!fpath) | |
| 695 | return log_oom(); | |
| 696 | ||
| 697 | if (stat(fpath, &st) < 0) | |
| 698 | continue; | |
| 699 | ||
| 700 | if (!(st.st_mode & S_IXUSR)) | |
| 701 | continue; | |
| 702 | ||
| 703 | name = sysv_translate_name(de->d_name); | |
| 704 | if (!name) | |
| 705 | return log_oom(); | |
| 706 | ||
| 707 | if (hashmap_contains(all_services, name)) | |
| 708 | continue; | |
| 709 | ||
| 710 | service = new0(SysvStub, 1); | |
| 711 | if (!service) | |
| 712 | return log_oom(); | |
| 713 | ||
| 714 | service->sysv_start_priority = -1; | |
| 715 | service->name = name; | |
| 716 | service->path = fpath; | |
| 717 | ||
| 718 | r = hashmap_put(all_services, service->name, service); | |
| 719 | if (r < 0) | |
| 720 | return log_oom(); | |
| 721 | ||
| 722 | name = fpath = NULL; | |
| 723 | } | |
| 724 | } | |
| 725 | ||
| 726 | return 0; | |
| 727 | } | |
| 728 | ||
| 729 | static int set_dependencies_from_rcnd(LookupPaths lp, Hashmap *all_services) { | |
| 730 | char **p; | |
| 731 | unsigned i; | |
| 732 | _cleanup_closedir_ DIR *d = NULL; | |
| 733 | _cleanup_free_ char *path = NULL, *fpath = NULL, *name = NULL; | |
| 734 | SysvStub *service; | |
| 735 | Iterator j; | |
| 736 | Set *runlevel_services[ELEMENTSOF(rcnd_table)] = {}; | |
| 737 | _cleanup_set_free_ Set *shutdown_services = NULL; | |
| 738 | int r = 0; | |
| 739 | ||
| 740 | STRV_FOREACH(p, lp.sysvrcnd_path) | |
| 741 | for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) { | |
| 742 | struct dirent *de; | |
| 743 | ||
| 744 | free(path); | |
| 745 | path = strjoin(*p, "/", rcnd_table[i].path, NULL); | |
| 746 | if (!path) | |
| 747 | return -ENOMEM; | |
| 748 | ||
| 749 | if (d) | |
| 750 | closedir(d); | |
| 751 | ||
| 752 | d = opendir(path); | |
| 753 | if (!d) { | |
| 754 | if (errno != ENOENT) | |
| 755 | log_warning("opendir(%s) failed: %m", path); | |
| 756 | ||
| 757 | continue; | |
| 758 | } | |
| 759 | ||
| 760 | while ((de = readdir(d))) { | |
| 761 | int a, b; | |
| 762 | ||
| 763 | if (ignore_file(de->d_name)) | |
| 764 | continue; | |
| 765 | ||
| 766 | if (de->d_name[0] != 'S' && de->d_name[0] != 'K') | |
| 767 | continue; | |
| 768 | ||
| 769 | if (strlen(de->d_name) < 4) | |
| 770 | continue; | |
| 771 | ||
| 772 | a = undecchar(de->d_name[1]); | |
| 773 | b = undecchar(de->d_name[2]); | |
| 774 | ||
| 775 | if (a < 0 || b < 0) | |
| 776 | continue; | |
| 777 | ||
| 778 | free(fpath); | |
| 779 | fpath = strjoin(*p, "/", de->d_name, NULL); | |
| 780 | if (!fpath) { | |
| 781 | r = -ENOMEM; | |
| 782 | goto finish; | |
| 783 | } | |
| 784 | ||
| 785 | name = sysv_translate_name(de->d_name + 3); | |
| 786 | if (!name) { | |
| 787 | r = log_oom(); | |
| 788 | goto finish; | |
| 789 | } | |
| 790 | ||
| 791 | if (hashmap_contains(all_services, name)) | |
| 792 | service = hashmap_get(all_services, name); | |
| 793 | else { | |
| 794 | log_warning("Could not find init scirpt for %s", name); | |
| 795 | continue; | |
| 796 | } | |
| 797 | ||
| 798 | if (de->d_name[0] == 'S') { | |
| 799 | ||
| 800 | if (rcnd_table[i].type == RUNLEVEL_UP) { | |
| 801 | service->sysv_start_priority = | |
| 802 | MAX(a*10 + b, service->sysv_start_priority); | |
| 803 | } | |
| 804 | ||
| 805 | r = set_ensure_allocated(&runlevel_services[i], | |
| 806 | trivial_hash_func, trivial_compare_func); | |
| 807 | if (r < 0) | |
| 808 | goto finish; | |
| 809 | ||
| 810 | r = set_put(runlevel_services[i], service); | |
| 811 | if (r < 0) | |
| 812 | goto finish; | |
| 813 | ||
| 814 | } else if (de->d_name[0] == 'K' && | |
| 815 | (rcnd_table[i].type == RUNLEVEL_DOWN)) { | |
| 816 | ||
| 817 | r = set_ensure_allocated(&shutdown_services, | |
| 818 | trivial_hash_func, trivial_compare_func); | |
| 819 | if (r < 0) | |
| 820 | goto finish; | |
| 821 | ||
| 822 | r = set_put(shutdown_services, service); | |
| 823 | if (r < 0) | |
| 824 | goto finish; | |
| 825 | } | |
| 826 | } | |
| 827 | } | |
| 828 | ||
| 829 | ||
| 830 | for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) | |
| 831 | SET_FOREACH(service, runlevel_services[i], j) { | |
| 832 | r = strv_extend(&service->before, rcnd_table[i].target); | |
| 833 | if (r < 0) | |
| 834 | return log_oom(); | |
| 835 | r = strv_extend(&service->wants, rcnd_table[i].target); | |
| 836 | if (r < 0) | |
| 837 | return log_oom(); | |
| 838 | } | |
| 839 | ||
| 840 | SET_FOREACH(service, shutdown_services, j) { | |
| 841 | r = strv_extend(&service->before, SPECIAL_SHUTDOWN_TARGET); | |
| 842 | if (r < 0) | |
| 843 | return log_oom(); | |
| 844 | r = strv_extend(&service->conflicts, SPECIAL_SHUTDOWN_TARGET); | |
| 845 | if (r < 0) | |
| 846 | return log_oom(); | |
| 847 | } | |
| 848 | ||
| 849 | r = 0; | |
| 850 | ||
| 851 | finish: | |
| 852 | ||
| 853 | for (i = 0; i < ELEMENTSOF(rcnd_table); i++) | |
| 854 | set_free(runlevel_services[i]); | |
| 855 | ||
| 856 | return r; | |
| 857 | } | |
| 858 | ||
| 859 | int main(int argc, char *argv[]) { | |
| 860 | int r, q; | |
| 861 | LookupPaths lp; | |
| 862 | Hashmap *all_services; | |
| 863 | SysvStub *service; | |
| 864 | Iterator j; | |
| 865 | ||
| 866 | if (argc > 1 && argc != 4) { | |
| 867 | log_error("This program takes three or no arguments."); | |
| 868 | return EXIT_FAILURE; | |
| 869 | } | |
| 870 | ||
| 871 | if (argc > 1) | |
| 872 | arg_dest = argv[3]; | |
| 873 | ||
| 874 | log_set_target(LOG_TARGET_SAFE); | |
| 875 | log_parse_environment(); | |
| 876 | log_open(); | |
| 877 | ||
| 878 | umask(0022); | |
| 879 | ||
| 880 | r = lookup_paths_init(&lp, SYSTEMD_SYSTEM, true, NULL, NULL, NULL, NULL); | |
| 881 | if (r < 0) { | |
| 882 | log_error("Failed to find lookup paths."); | |
| 883 | return EXIT_FAILURE; | |
| 884 | } | |
| 885 | ||
| 886 | all_services = hashmap_new(string_hash_func, string_compare_func); | |
| 887 | if (!all_services) { | |
| 888 | log_oom(); | |
| 889 | return EXIT_FAILURE; | |
| 890 | } | |
| 891 | ||
| 892 | r = enumerate_sysv(lp, all_services); | |
| 893 | if (r < 0) { | |
| 894 | log_error("Failed to generate units for all init scripts."); | |
| 895 | return EXIT_FAILURE; | |
| 896 | } | |
| 897 | ||
| 898 | r = set_dependencies_from_rcnd(lp, all_services); | |
| 899 | if (r < 0) { | |
| 900 | log_error("Failed to read runlevels from rcnd links."); | |
| 901 | return EXIT_FAILURE; | |
| 902 | } | |
| 903 | ||
| 904 | HASHMAP_FOREACH(service, all_services, j) { | |
| 905 | q = load_sysv(service); | |
| 906 | if (q < 0) | |
| 907 | continue; | |
| 908 | ||
| 909 | q = fix_order(service, all_services); | |
| 910 | if (q < 0) | |
| 911 | continue; | |
| 912 | ||
| 913 | q = generate_unit_file(service); | |
| 914 | if (q < 0) | |
| 915 | continue; | |
| 916 | } | |
| 917 | ||
| 918 | return EXIT_SUCCESS; | |
| 919 | } |