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Commit | Line | Data |
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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
95ed3294 TA |
2 | /*** |
3 | This file is part of systemd. | |
4 | ||
5 | Copyright 2014 Thomas H.P. Andersen | |
6 | Copyright 2010 Lennart Poettering | |
7 | Copyright 2011 Michal Schmidt | |
8 | ||
9 | systemd is free software; you can redistribute it and/or modify it | |
10 | under the terms of the GNU Lesser General Public License as published by | |
11 | the Free Software Foundation; either version 2.1 of the License, or | |
12 | (at your option) any later version. | |
13 | ||
14 | systemd is distributed in the hope that it will be useful, but | |
15 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
17 | Lesser General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU Lesser General Public License | |
20 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
21 | ***/ | |
22 | ||
23 | #include <errno.h> | |
24 | #include <stdio.h> | |
25 | #include <unistd.h> | |
26 | ||
b5efdb8a | 27 | #include "alloc-util.h" |
c279613f | 28 | #include "dirent-util.h" |
41e2036e | 29 | #include "exit-status.h" |
3ffd4af2 | 30 | #include "fd-util.h" |
c279613f | 31 | #include "fileio.h" |
7f0cc637 | 32 | #include "generator.h" |
07630cea | 33 | #include "hashmap.h" |
8fcde012 | 34 | #include "hexdecoct.h" |
07630cea LP |
35 | #include "install.h" |
36 | #include "log.h" | |
95ed3294 | 37 | #include "mkdir.h" |
95ed3294 | 38 | #include "path-lookup.h" |
07630cea | 39 | #include "path-util.h" |
f2341e0a | 40 | #include "set.h" |
07630cea | 41 | #include "special.h" |
8fcde012 | 42 | #include "stat-util.h" |
07630cea LP |
43 | #include "string-util.h" |
44 | #include "strv.h" | |
45 | #include "unit-name.h" | |
46 | #include "util.h" | |
95ed3294 | 47 | |
95ed3294 TA |
48 | static const struct { |
49 | const char *path; | |
50 | const char *target; | |
95ed3294 TA |
51 | } rcnd_table[] = { |
52 | /* Standard SysV runlevels for start-up */ | |
788d2b08 LP |
53 | { "rc1.d", SPECIAL_RESCUE_TARGET }, |
54 | { "rc2.d", SPECIAL_MULTI_USER_TARGET }, | |
55 | { "rc3.d", SPECIAL_MULTI_USER_TARGET }, | |
56 | { "rc4.d", SPECIAL_MULTI_USER_TARGET }, | |
57 | { "rc5.d", SPECIAL_GRAPHICAL_TARGET }, | |
58 | ||
59 | /* We ignore the SysV runlevels for shutdown here, as SysV services get default dependencies anyway, and that | |
60 | * means they are shut down anyway at system power off if running. */ | |
95ed3294 TA |
61 | }; |
62 | ||
dd422d1e | 63 | static const char *arg_dest = "/tmp"; |
8fba1c8d | 64 | |
95ed3294 TA |
65 | typedef struct SysvStub { |
66 | char *name; | |
67 | char *path; | |
68 | char *description; | |
69 | int sysv_start_priority; | |
70 | char *pid_file; | |
71 | char **before; | |
72 | char **after; | |
73 | char **wants; | |
260ad50f | 74 | char **wanted_by; |
95ed3294 TA |
75 | bool has_lsb; |
76 | bool reload; | |
c279613f | 77 | bool loaded; |
95ed3294 TA |
78 | } SysvStub; |
79 | ||
8fba1c8d | 80 | static void free_sysvstub(SysvStub *s) { |
c279613f LP |
81 | if (!s) |
82 | return; | |
83 | ||
8fba1c8d ZJS |
84 | free(s->name); |
85 | free(s->path); | |
86 | free(s->description); | |
87 | free(s->pid_file); | |
88 | strv_free(s->before); | |
89 | strv_free(s->after); | |
90 | strv_free(s->wants); | |
91 | strv_free(s->wanted_by); | |
8fba1c8d ZJS |
92 | free(s); |
93 | } | |
94 | ||
95 | DEFINE_TRIVIAL_CLEANUP_FUNC(SysvStub*, free_sysvstub); | |
96 | ||
97 | static void free_sysvstub_hashmapp(Hashmap **h) { | |
98 | SysvStub *stub; | |
99 | ||
100 | while ((stub = hashmap_steal_first(*h))) | |
101 | free_sysvstub(stub); | |
102 | ||
103 | hashmap_free(*h); | |
104 | } | |
95ed3294 | 105 | |
b7e71846 | 106 | static int add_alias(const char *service, const char *alias) { |
c279613f | 107 | const char *link; |
b7e71846 MB |
108 | int r; |
109 | ||
110 | assert(service); | |
111 | assert(alias); | |
112 | ||
c279613f | 113 | link = strjoina(arg_dest, "/", alias); |
b7e71846 MB |
114 | |
115 | r = symlink(service, link); | |
116 | if (r < 0) { | |
117 | if (errno == EEXIST) | |
118 | return 0; | |
c279613f | 119 | |
b7e71846 MB |
120 | return -errno; |
121 | } | |
122 | ||
123 | return 1; | |
124 | } | |
125 | ||
95ed3294 | 126 | static int generate_unit_file(SysvStub *s) { |
95ed3294 | 127 | _cleanup_fclose_ FILE *f = NULL; |
c279613f LP |
128 | const char *unit; |
129 | char **p; | |
95ed3294 TA |
130 | int r; |
131 | ||
c279613f LP |
132 | assert(s); |
133 | ||
134 | if (!s->loaded) | |
135 | return 0; | |
136 | ||
137 | unit = strjoina(arg_dest, "/", s->name); | |
138 | ||
77354c7e MP |
139 | /* We might already have a symlink with the same name from a Provides:, |
140 | * or from backup files like /etc/init.d/foo.bak. Real scripts always win, | |
141 | * so remove an existing link */ | |
4e558983 | 142 | if (is_symlink(unit) > 0) { |
c279613f | 143 | log_warning("Overwriting existing symlink %s with real service.", unit); |
9993ef2e | 144 | (void) unlink(unit); |
77354c7e MP |
145 | } |
146 | ||
95ed3294 | 147 | f = fopen(unit, "wxe"); |
4a62c710 MS |
148 | if (!f) |
149 | return log_error_errno(errno, "Failed to create unit file %s: %m", unit); | |
95ed3294 TA |
150 | |
151 | fprintf(f, | |
152 | "# Automatically generated by systemd-sysv-generator\n\n" | |
153 | "[Unit]\n" | |
aad0a2c8 | 154 | "Documentation=man:systemd-sysv-generator(8)\n" |
c279613f LP |
155 | "SourcePath=%s\n", |
156 | s->path); | |
157 | ||
158 | if (s->description) | |
159 | fprintf(f, "Description=%s\n", s->description); | |
95ed3294 | 160 | |
c584ffc0 LN |
161 | STRV_FOREACH(p, s->before) |
162 | fprintf(f, "Before=%s\n", *p); | |
163 | STRV_FOREACH(p, s->after) | |
164 | fprintf(f, "After=%s\n", *p); | |
165 | STRV_FOREACH(p, s->wants) | |
166 | fprintf(f, "Wants=%s\n", *p); | |
95ed3294 TA |
167 | |
168 | fprintf(f, | |
169 | "\n[Service]\n" | |
170 | "Type=forking\n" | |
171 | "Restart=no\n" | |
172 | "TimeoutSec=5min\n" | |
173 | "IgnoreSIGPIPE=no\n" | |
174 | "KillMode=process\n" | |
175 | "GuessMainPID=no\n" | |
176 | "RemainAfterExit=%s\n", | |
177 | yes_no(!s->pid_file)); | |
178 | ||
95ed3294 | 179 | if (s->pid_file) |
d171ed1c | 180 | fprintf(f, "PIDFile=%s\n", s->pid_file); |
95ed3294 | 181 | |
41e2036e LP |
182 | /* Consider two special LSB exit codes a clean exit */ |
183 | if (s->has_lsb) | |
184 | fprintf(f, | |
185 | "SuccessExitStatus=%i %i\n", | |
186 | EXIT_NOTINSTALLED, | |
187 | EXIT_NOTCONFIGURED); | |
188 | ||
95ed3294 TA |
189 | fprintf(f, |
190 | "ExecStart=%s start\n" | |
191 | "ExecStop=%s stop\n", | |
192 | s->path, s->path); | |
193 | ||
194 | if (s->reload) | |
195 | fprintf(f, "ExecReload=%s reload\n", s->path); | |
196 | ||
c279613f LP |
197 | r = fflush_and_check(f); |
198 | if (r < 0) | |
199 | return log_error_errno(r, "Failed to write unit %s: %m", unit); | |
200 | ||
7f0cc637 ZJS |
201 | STRV_FOREACH(p, s->wanted_by) |
202 | (void) generator_add_symlink(arg_dest, *p, "wants", s->name); | |
95ed3294 | 203 | |
c279613f | 204 | return 1; |
95ed3294 TA |
205 | } |
206 | ||
207 | static bool usage_contains_reload(const char *line) { | |
208 | return (strcasestr(line, "{reload|") || | |
209 | strcasestr(line, "{reload}") || | |
210 | strcasestr(line, "{reload\"") || | |
211 | strcasestr(line, "|reload|") || | |
212 | strcasestr(line, "|reload}") || | |
213 | strcasestr(line, "|reload\"")); | |
214 | } | |
215 | ||
216 | static char *sysv_translate_name(const char *name) { | |
0b2ec8a3 DH |
217 | _cleanup_free_ char *c = NULL; |
218 | char *res; | |
95ed3294 | 219 | |
264581a2 FS |
220 | c = strdup(name); |
221 | if (!c) | |
0b2ec8a3 | 222 | return NULL; |
95ed3294 | 223 | |
0b2ec8a3 DH |
224 | res = endswith(c, ".sh"); |
225 | if (res) | |
226 | *res = 0; | |
95ed3294 | 227 | |
0b2ec8a3 DH |
228 | if (unit_name_mangle(c, UNIT_NAME_NOGLOB, &res) < 0) |
229 | return NULL; | |
230 | ||
231 | return res; | |
95ed3294 TA |
232 | } |
233 | ||
7532e6d4 | 234 | static int sysv_translate_facility(SysvStub *s, unsigned line, const char *name, char **ret) { |
95ed3294 TA |
235 | |
236 | /* We silently ignore the $ prefix here. According to the LSB | |
237 | * spec it simply indicates whether something is a | |
238 | * standardized name or a distribution-specific one. Since we | |
239 | * just follow what already exists and do not introduce new | |
240 | * uses or names we don't care who introduced a new name. */ | |
241 | ||
242 | static const char * const table[] = { | |
243 | /* LSB defined facilities */ | |
244 | "local_fs", NULL, | |
245 | "network", SPECIAL_NETWORK_ONLINE_TARGET, | |
246 | "named", SPECIAL_NSS_LOOKUP_TARGET, | |
247 | "portmap", SPECIAL_RPCBIND_TARGET, | |
248 | "remote_fs", SPECIAL_REMOTE_FS_TARGET, | |
249 | "syslog", NULL, | |
250 | "time", SPECIAL_TIME_SYNC_TARGET, | |
251 | }; | |
252 | ||
7532e6d4 | 253 | const char *filename; |
c279613f | 254 | char *filename_no_sh, *e, *m; |
95ed3294 | 255 | const char *n; |
4e488555 | 256 | unsigned i; |
c279613f | 257 | int r; |
95ed3294 TA |
258 | |
259 | assert(name); | |
7532e6d4 | 260 | assert(s); |
c279613f | 261 | assert(ret); |
95ed3294 | 262 | |
7532e6d4 FS |
263 | filename = basename(s->path); |
264 | ||
95ed3294 TA |
265 | n = *name == '$' ? name + 1 : name; |
266 | ||
267 | for (i = 0; i < ELEMENTSOF(table); i += 2) { | |
95ed3294 TA |
268 | if (!streq(table[i], n)) |
269 | continue; | |
270 | ||
e932f540 LP |
271 | if (!table[i+1]) { |
272 | *ret = NULL; | |
95ed3294 | 273 | return 0; |
e932f540 | 274 | } |
95ed3294 | 275 | |
c279613f LP |
276 | m = strdup(table[i+1]); |
277 | if (!m) | |
95ed3294 TA |
278 | return log_oom(); |
279 | ||
c279613f LP |
280 | *ret = m; |
281 | return 1; | |
282 | } | |
283 | ||
284 | /* If we don't know this name, fallback heuristics to figure | |
285 | * out whether something is a target or a service alias. */ | |
286 | ||
287 | /* Facilities starting with $ are most likely targets */ | |
288 | if (*name == '$') { | |
289 | r = unit_name_build(n, NULL, ".target", ret); | |
290 | if (r < 0) | |
7532e6d4 | 291 | return log_error_errno(r, "[%s:%u] Could not build name for facility %s: %m", s->path, line, name); |
c279613f | 292 | |
e932f540 | 293 | return 1; |
95ed3294 TA |
294 | } |
295 | ||
c279613f | 296 | /* Strip ".sh" suffix from file name for comparison */ |
4e488555 | 297 | filename_no_sh = strdupa(filename); |
40780877 | 298 | e = endswith(filename_no_sh, ".sh"); |
3315f085 | 299 | if (e) { |
4e488555 | 300 | *e = '\0'; |
3315f085 LP |
301 | filename = filename_no_sh; |
302 | } | |
29e0e6d8 | 303 | |
c279613f | 304 | /* Names equaling the file name of the services are redundant */ |
e932f540 LP |
305 | if (streq_ptr(n, filename)) { |
306 | *ret = NULL; | |
95ed3294 | 307 | return 0; |
e932f540 | 308 | } |
95ed3294 | 309 | |
c279613f LP |
310 | /* Everything else we assume to be normal service names */ |
311 | m = sysv_translate_name(n); | |
312 | if (!m) | |
313 | return log_oom(); | |
95ed3294 | 314 | |
c279613f | 315 | *ret = m; |
95ed3294 TA |
316 | return 1; |
317 | } | |
318 | ||
1e2fee5f | 319 | static int handle_provides(SysvStub *s, unsigned line, const char *full_text, const char *text) { |
1e2fee5f ZJS |
320 | int r; |
321 | ||
c279613f LP |
322 | assert(s); |
323 | assert(full_text); | |
324 | assert(text); | |
1e2fee5f | 325 | |
c279613f LP |
326 | for (;;) { |
327 | _cleanup_free_ char *word = NULL, *m = NULL; | |
1e2fee5f | 328 | |
c279613f | 329 | r = extract_first_word(&text, &word, NULL, EXTRACT_QUOTES|EXTRACT_RELAX); |
1e2fee5f | 330 | if (r < 0) |
7532e6d4 | 331 | return log_error_errno(r, "[%s:%u] Failed to parse word from provides string: %m", s->path, line); |
1e2fee5f | 332 | if (r == 0) |
c279613f LP |
333 | break; |
334 | ||
7532e6d4 | 335 | r = sysv_translate_facility(s, line, word, &m); |
c279613f | 336 | if (r <= 0) /* continue on error */ |
1e2fee5f ZJS |
337 | continue; |
338 | ||
c279613f LP |
339 | switch (unit_name_to_type(m)) { |
340 | ||
341 | case UNIT_SERVICE: | |
1e2fee5f ZJS |
342 | log_debug("Adding Provides: alias '%s' for '%s'", m, s->name); |
343 | r = add_alias(s->name, m); | |
e987f2a8 | 344 | if (r < 0) |
f2341e0a | 345 | log_warning_errno(r, "[%s:%u] Failed to add LSB Provides name %s, ignoring: %m", s->path, line, m); |
c279613f LP |
346 | break; |
347 | ||
348 | case UNIT_TARGET: | |
349 | ||
1e2fee5f ZJS |
350 | /* NB: SysV targets which are provided by a |
351 | * service are pulled in by the services, as | |
352 | * an indication that the generic service is | |
353 | * now available. This is strictly one-way. | |
354 | * The targets do NOT pull in SysV services! */ | |
c279613f | 355 | |
1e2fee5f ZJS |
356 | r = strv_extend(&s->before, m); |
357 | if (r < 0) | |
358 | return log_oom(); | |
c279613f | 359 | |
1e2fee5f ZJS |
360 | r = strv_extend(&s->wants, m); |
361 | if (r < 0) | |
362 | return log_oom(); | |
c279613f | 363 | |
1e2fee5f ZJS |
364 | if (streq(m, SPECIAL_NETWORK_ONLINE_TARGET)) { |
365 | r = strv_extend(&s->before, SPECIAL_NETWORK_TARGET); | |
366 | if (r < 0) | |
367 | return log_oom(); | |
bd9ad4ff LN |
368 | r = strv_extend(&s->wants, SPECIAL_NETWORK_TARGET); |
369 | if (r < 0) | |
370 | return log_oom(); | |
1e2fee5f | 371 | } |
c279613f LP |
372 | |
373 | break; | |
374 | ||
375 | case _UNIT_TYPE_INVALID: | |
2c09a745 | 376 | log_warning("Unit name '%s' is invalid", m); |
c279613f LP |
377 | break; |
378 | ||
379 | default: | |
2c09a745 | 380 | log_warning("Unknown unit type for unit '%s'", m); |
c279613f | 381 | } |
1e2fee5f | 382 | } |
c279613f | 383 | |
1e2fee5f ZJS |
384 | return 0; |
385 | } | |
386 | ||
387 | static int handle_dependencies(SysvStub *s, unsigned line, const char *full_text, const char *text) { | |
1e2fee5f ZJS |
388 | int r; |
389 | ||
c279613f LP |
390 | assert(s); |
391 | assert(full_text); | |
392 | assert(text); | |
1e2fee5f | 393 | |
c279613f LP |
394 | for (;;) { |
395 | _cleanup_free_ char *word = NULL, *m = NULL; | |
396 | bool is_before; | |
1e2fee5f | 397 | |
c279613f LP |
398 | r = extract_first_word(&text, &word, NULL, EXTRACT_QUOTES|EXTRACT_RELAX); |
399 | if (r < 0) | |
7532e6d4 | 400 | return log_error_errno(r, "[%s:%u] Failed to parse word from provides string: %m", s->path, line); |
1e2fee5f | 401 | if (r == 0) |
c279613f LP |
402 | break; |
403 | ||
7532e6d4 | 404 | r = sysv_translate_facility(s, line, word, &m); |
c279613f | 405 | if (r <= 0) /* continue on error */ |
1e2fee5f ZJS |
406 | continue; |
407 | ||
408 | is_before = startswith_no_case(full_text, "X-Start-Before:"); | |
409 | ||
410 | if (streq(m, SPECIAL_NETWORK_ONLINE_TARGET) && !is_before) { | |
411 | /* the network-online target is special, as it needs to be actively pulled in */ | |
412 | r = strv_extend(&s->after, m); | |
413 | if (r < 0) | |
414 | return log_oom(); | |
c279613f | 415 | |
1e2fee5f | 416 | r = strv_extend(&s->wants, m); |
e987f2a8 | 417 | } else |
1e2fee5f | 418 | r = strv_extend(is_before ? &s->before : &s->after, m); |
1e2fee5f | 419 | if (r < 0) |
e987f2a8 | 420 | return log_oom(); |
1e2fee5f | 421 | } |
c279613f | 422 | |
1e2fee5f ZJS |
423 | return 0; |
424 | } | |
425 | ||
95ed3294 TA |
426 | static int load_sysv(SysvStub *s) { |
427 | _cleanup_fclose_ FILE *f; | |
428 | unsigned line = 0; | |
429 | int r; | |
430 | enum { | |
431 | NORMAL, | |
432 | DESCRIPTION, | |
433 | LSB, | |
434 | LSB_DESCRIPTION, | |
435 | USAGE_CONTINUATION | |
436 | } state = NORMAL; | |
437 | _cleanup_free_ char *short_description = NULL, *long_description = NULL, *chkconfig_description = NULL; | |
438 | char *description; | |
439 | bool supports_reload = false; | |
c279613f | 440 | char l[LINE_MAX]; |
95ed3294 TA |
441 | |
442 | assert(s); | |
443 | ||
444 | f = fopen(s->path, "re"); | |
c279613f LP |
445 | if (!f) { |
446 | if (errno == ENOENT) | |
447 | return 0; | |
95ed3294 | 448 | |
c279613f LP |
449 | return log_error_errno(errno, "Failed to open %s: %m", s->path); |
450 | } | |
77354c7e | 451 | |
c279613f | 452 | log_debug("Loading SysV script %s", s->path); |
95ed3294 | 453 | |
c279613f LP |
454 | FOREACH_LINE(l, f, goto fail) { |
455 | char *t; | |
95ed3294 TA |
456 | |
457 | line++; | |
458 | ||
459 | t = strstrip(l); | |
460 | if (*t != '#') { | |
461 | /* Try to figure out whether this init script supports | |
462 | * the reload operation. This heuristic looks for | |
463 | * "Usage" lines which include the reload option. */ | |
464 | if ( state == USAGE_CONTINUATION || | |
465 | (state == NORMAL && strcasestr(t, "usage"))) { | |
466 | if (usage_contains_reload(t)) { | |
467 | supports_reload = true; | |
468 | state = NORMAL; | |
469 | } else if (t[strlen(t)-1] == '\\') | |
470 | state = USAGE_CONTINUATION; | |
471 | else | |
472 | state = NORMAL; | |
473 | } | |
474 | ||
475 | continue; | |
476 | } | |
477 | ||
478 | if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) { | |
479 | state = LSB; | |
480 | s->has_lsb = true; | |
481 | continue; | |
482 | } | |
483 | ||
3742095b | 484 | if (IN_SET(state, LSB_DESCRIPTION, LSB) && streq(t, "### END INIT INFO")) { |
95ed3294 TA |
485 | state = NORMAL; |
486 | continue; | |
487 | } | |
488 | ||
489 | t++; | |
490 | t += strspn(t, WHITESPACE); | |
491 | ||
492 | if (state == NORMAL) { | |
493 | ||
494 | /* Try to parse Red Hat style description */ | |
495 | ||
496 | if (startswith_no_case(t, "description:")) { | |
497 | ||
c279613f | 498 | size_t k; |
859fdd1e | 499 | const char *j; |
95ed3294 | 500 | |
c279613f LP |
501 | k = strlen(t); |
502 | if (k > 0 && t[k-1] == '\\') { | |
95ed3294 TA |
503 | state = DESCRIPTION; |
504 | t[k-1] = 0; | |
505 | } | |
506 | ||
3c6f7c34 | 507 | j = empty_to_null(strstrip(t+12)); |
95ed3294 | 508 | |
c279613f LP |
509 | r = free_and_strdup(&chkconfig_description, j); |
510 | if (r < 0) | |
511 | return log_oom(); | |
95ed3294 TA |
512 | |
513 | } else if (startswith_no_case(t, "pidfile:")) { | |
c279613f | 514 | const char *fn; |
95ed3294 TA |
515 | |
516 | state = NORMAL; | |
517 | ||
518 | fn = strstrip(t+8); | |
519 | if (!path_is_absolute(fn)) { | |
f2341e0a | 520 | log_error("[%s:%u] PID file not absolute. Ignoring.", s->path, line); |
95ed3294 TA |
521 | continue; |
522 | } | |
523 | ||
c279613f LP |
524 | r = free_and_strdup(&s->pid_file, fn); |
525 | if (r < 0) | |
526 | return log_oom(); | |
95ed3294 TA |
527 | } |
528 | ||
529 | } else if (state == DESCRIPTION) { | |
530 | ||
531 | /* Try to parse Red Hat style description | |
532 | * continuation */ | |
533 | ||
c279613f | 534 | size_t k; |
95ed3294 TA |
535 | char *j; |
536 | ||
c279613f LP |
537 | k = strlen(t); |
538 | if (k > 0 && t[k-1] == '\\') | |
95ed3294 TA |
539 | t[k-1] = 0; |
540 | else | |
541 | state = NORMAL; | |
542 | ||
543 | j = strstrip(t); | |
c279613f | 544 | if (!isempty(j)) { |
95ed3294 TA |
545 | char *d = NULL; |
546 | ||
547 | if (chkconfig_description) | |
605405c6 | 548 | d = strjoin(chkconfig_description, " ", j); |
95ed3294 TA |
549 | else |
550 | d = strdup(j); | |
95ed3294 | 551 | if (!d) |
c279613f | 552 | return log_oom(); |
95ed3294 TA |
553 | |
554 | free(chkconfig_description); | |
555 | chkconfig_description = d; | |
556 | } | |
557 | ||
3742095b | 558 | } else if (IN_SET(state, LSB, LSB_DESCRIPTION)) { |
95ed3294 TA |
559 | |
560 | if (startswith_no_case(t, "Provides:")) { | |
95ed3294 TA |
561 | state = LSB; |
562 | ||
1e2fee5f ZJS |
563 | r = handle_provides(s, line, t, t + 9); |
564 | if (r < 0) | |
565 | return r; | |
c279613f | 566 | |
95ed3294 TA |
567 | } else if (startswith_no_case(t, "Required-Start:") || |
568 | startswith_no_case(t, "Should-Start:") || | |
569 | startswith_no_case(t, "X-Start-Before:") || | |
570 | startswith_no_case(t, "X-Start-After:")) { | |
95ed3294 TA |
571 | |
572 | state = LSB; | |
573 | ||
1e2fee5f ZJS |
574 | r = handle_dependencies(s, line, t, strchr(t, ':') + 1); |
575 | if (r < 0) | |
576 | return r; | |
95ed3294 | 577 | |
95ed3294 | 578 | } else if (startswith_no_case(t, "Description:")) { |
c279613f | 579 | const char *j; |
95ed3294 TA |
580 | |
581 | state = LSB_DESCRIPTION; | |
582 | ||
3c6f7c34 | 583 | j = empty_to_null(strstrip(t+12)); |
95ed3294 | 584 | |
c279613f LP |
585 | r = free_and_strdup(&long_description, j); |
586 | if (r < 0) | |
587 | return log_oom(); | |
95ed3294 TA |
588 | |
589 | } else if (startswith_no_case(t, "Short-Description:")) { | |
c279613f | 590 | const char *j; |
95ed3294 TA |
591 | |
592 | state = LSB; | |
593 | ||
3c6f7c34 | 594 | j = empty_to_null(strstrip(t+18)); |
95ed3294 | 595 | |
c279613f LP |
596 | r = free_and_strdup(&short_description, j); |
597 | if (r < 0) | |
598 | return log_oom(); | |
95ed3294 TA |
599 | |
600 | } else if (state == LSB_DESCRIPTION) { | |
601 | ||
602 | if (startswith(l, "#\t") || startswith(l, "# ")) { | |
c279613f | 603 | const char *j; |
95ed3294 TA |
604 | |
605 | j = strstrip(t); | |
c279613f | 606 | if (!isempty(j)) { |
95ed3294 TA |
607 | char *d = NULL; |
608 | ||
609 | if (long_description) | |
605405c6 | 610 | d = strjoin(long_description, " ", t); |
95ed3294 TA |
611 | else |
612 | d = strdup(j); | |
95ed3294 | 613 | if (!d) |
c279613f | 614 | return log_oom(); |
95ed3294 TA |
615 | |
616 | free(long_description); | |
617 | long_description = d; | |
618 | } | |
619 | ||
620 | } else | |
621 | state = LSB; | |
622 | } | |
623 | } | |
624 | } | |
625 | ||
626 | s->reload = supports_reload; | |
627 | ||
628 | /* We use the long description only if | |
629 | * no short description is set. */ | |
630 | ||
631 | if (short_description) | |
632 | description = short_description; | |
633 | else if (chkconfig_description) | |
634 | description = chkconfig_description; | |
635 | else if (long_description) | |
636 | description = long_description; | |
637 | else | |
638 | description = NULL; | |
639 | ||
640 | if (description) { | |
641 | char *d; | |
642 | ||
643 | d = strappend(s->has_lsb ? "LSB: " : "SYSV: ", description); | |
644 | if (!d) | |
c279613f | 645 | return log_oom(); |
95ed3294 TA |
646 | |
647 | s->description = d; | |
648 | } | |
649 | ||
c279613f | 650 | s->loaded = true; |
95ed3294 | 651 | return 0; |
c279613f LP |
652 | |
653 | fail: | |
654 | return log_error_errno(errno, "Failed to read configuration file '%s': %m", s->path); | |
95ed3294 TA |
655 | } |
656 | ||
657 | static int fix_order(SysvStub *s, Hashmap *all_services) { | |
658 | SysvStub *other; | |
659 | Iterator j; | |
660 | int r; | |
661 | ||
662 | assert(s); | |
663 | ||
c279613f LP |
664 | if (!s->loaded) |
665 | return 0; | |
666 | ||
95ed3294 TA |
667 | if (s->sysv_start_priority < 0) |
668 | return 0; | |
669 | ||
670 | HASHMAP_FOREACH(other, all_services, j) { | |
671 | if (s == other) | |
672 | continue; | |
673 | ||
c279613f LP |
674 | if (!other->loaded) |
675 | continue; | |
676 | ||
95ed3294 TA |
677 | if (other->sysv_start_priority < 0) |
678 | continue; | |
679 | ||
680 | /* If both units have modern headers we don't care | |
681 | * about the priorities */ | |
682 | if (s->has_lsb && other->has_lsb) | |
683 | continue; | |
684 | ||
685 | if (other->sysv_start_priority < s->sysv_start_priority) { | |
686 | r = strv_extend(&s->after, other->name); | |
687 | if (r < 0) | |
688 | return log_oom(); | |
c279613f LP |
689 | |
690 | } else if (other->sysv_start_priority > s->sysv_start_priority) { | |
95ed3294 TA |
691 | r = strv_extend(&s->before, other->name); |
692 | if (r < 0) | |
693 | return log_oom(); | |
c279613f | 694 | } else |
95ed3294 TA |
695 | continue; |
696 | ||
697 | /* FIXME: Maybe we should compare the name here lexicographically? */ | |
698 | } | |
699 | ||
700 | return 0; | |
701 | } | |
702 | ||
4143c6c3 LP |
703 | static int acquire_search_path(const char *def, const char *envvar, char ***ret) { |
704 | _cleanup_strv_free_ char **l = NULL; | |
705 | const char *e; | |
706 | int r; | |
707 | ||
708 | assert(def); | |
709 | assert(envvar); | |
710 | ||
711 | e = getenv(envvar); | |
712 | if (e) { | |
713 | r = path_split_and_make_absolute(e, &l); | |
714 | if (r < 0) | |
715 | return log_error_errno(r, "Failed to make $%s search path absolute: %m", envvar); | |
716 | } | |
717 | ||
718 | if (strv_isempty(l)) { | |
719 | strv_free(l); | |
720 | ||
721 | l = strv_new(def, NULL); | |
722 | if (!l) | |
723 | return log_oom(); | |
724 | } | |
725 | ||
726 | if (!path_strv_resolve_uniq(l, NULL)) | |
727 | return log_oom(); | |
728 | ||
729 | *ret = l; | |
730 | l = NULL; | |
731 | ||
732 | return 0; | |
733 | } | |
734 | ||
a8ffe6fb | 735 | static int enumerate_sysv(const LookupPaths *lp, Hashmap *all_services) { |
4143c6c3 | 736 | _cleanup_strv_free_ char **sysvinit_path = NULL; |
95ed3294 | 737 | char **path; |
0ec0deaa | 738 | int r; |
95ed3294 | 739 | |
c279613f | 740 | assert(lp); |
c279613f | 741 | |
4143c6c3 LP |
742 | r = acquire_search_path(SYSTEM_SYSVINIT_PATH, "SYSTEMD_SYSVINIT_PATH", &sysvinit_path); |
743 | if (r < 0) | |
744 | return r; | |
745 | ||
746 | STRV_FOREACH(path, sysvinit_path) { | |
95ed3294 TA |
747 | _cleanup_closedir_ DIR *d = NULL; |
748 | struct dirent *de; | |
749 | ||
750 | d = opendir(*path); | |
751 | if (!d) { | |
752 | if (errno != ENOENT) | |
c279613f | 753 | log_warning_errno(errno, "Opening %s failed, ignoring: %m", *path); |
95ed3294 TA |
754 | continue; |
755 | } | |
756 | ||
c279613f | 757 | FOREACH_DIRENT(de, d, log_error_errno(errno, "Failed to enumerate directory %s, ignoring: %m", *path)) { |
95ed3294 | 758 | _cleanup_free_ char *fpath = NULL, *name = NULL; |
8fba1c8d | 759 | _cleanup_(free_sysvstubp) SysvStub *service = NULL; |
805e5dda | 760 | struct stat st; |
95ed3294 | 761 | |
7b729f86 | 762 | if (fstatat(dirfd(d), de->d_name, &st, 0) < 0) { |
c279613f | 763 | log_warning_errno(errno, "stat() failed on %s/%s, ignoring: %m", *path, de->d_name); |
95ed3294 | 764 | continue; |
805e5dda | 765 | } |
95ed3294 TA |
766 | |
767 | if (!(st.st_mode & S_IXUSR)) | |
768 | continue; | |
769 | ||
805e5dda LP |
770 | if (!S_ISREG(st.st_mode)) |
771 | continue; | |
772 | ||
95ed3294 TA |
773 | name = sysv_translate_name(de->d_name); |
774 | if (!name) | |
775 | return log_oom(); | |
776 | ||
a986501b LP |
777 | if (hashmap_contains(all_services, name)) |
778 | continue; | |
779 | ||
5ae87056 | 780 | r = unit_file_exists(UNIT_FILE_SYSTEM, lp, name); |
76ec966f | 781 | if (r < 0 && !IN_SET(r, -ELOOP, -ERFKILL, -EADDRNOTAVAIL)) { |
0ec0deaa LP |
782 | log_debug_errno(r, "Failed to detect whether %s exists, skipping: %m", name); |
783 | continue; | |
3c6d8e57 | 784 | } else if (r != 0) { |
0ec0deaa | 785 | log_debug("Native unit for %s already exists, skipping.", name); |
f4f01ec1 MP |
786 | continue; |
787 | } | |
788 | ||
605405c6 | 789 | fpath = strjoin(*path, "/", de->d_name); |
c279613f LP |
790 | if (!fpath) |
791 | return log_oom(); | |
792 | ||
95ed3294 TA |
793 | service = new0(SysvStub, 1); |
794 | if (!service) | |
795 | return log_oom(); | |
796 | ||
797 | service->sysv_start_priority = -1; | |
798 | service->name = name; | |
799 | service->path = fpath; | |
c279613f | 800 | name = fpath = NULL; |
95ed3294 TA |
801 | |
802 | r = hashmap_put(all_services, service->name, service); | |
805e5dda | 803 | if (r < 0) |
95ed3294 TA |
804 | return log_oom(); |
805 | ||
805e5dda | 806 | service = NULL; |
95ed3294 TA |
807 | } |
808 | } | |
809 | ||
810 | return 0; | |
811 | } | |
812 | ||
a8ffe6fb | 813 | static int set_dependencies_from_rcnd(const LookupPaths *lp, Hashmap *all_services) { |
95ed3294 | 814 | Set *runlevel_services[ELEMENTSOF(rcnd_table)] = {}; |
4143c6c3 | 815 | _cleanup_strv_free_ char **sysvrcnd_path = NULL; |
c279613f LP |
816 | SysvStub *service; |
817 | unsigned i; | |
818 | Iterator j; | |
819 | char **p; | |
820 | int r; | |
95ed3294 | 821 | |
c279613f LP |
822 | assert(lp); |
823 | ||
4143c6c3 LP |
824 | r = acquire_search_path(SYSTEM_SYSVRCND_PATH, "SYSTEMD_SYSVRCND_PATH", &sysvrcnd_path); |
825 | if (r < 0) | |
826 | return r; | |
827 | ||
828 | STRV_FOREACH(p, sysvrcnd_path) { | |
95ed3294 | 829 | for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) { |
c279613f LP |
830 | |
831 | _cleanup_closedir_ DIR *d = NULL; | |
832 | _cleanup_free_ char *path = NULL; | |
95ed3294 TA |
833 | struct dirent *de; |
834 | ||
605405c6 | 835 | path = strjoin(*p, "/", rcnd_table[i].path); |
c279613f LP |
836 | if (!path) { |
837 | r = log_oom(); | |
838 | goto finish; | |
839 | } | |
95ed3294 TA |
840 | |
841 | d = opendir(path); | |
842 | if (!d) { | |
843 | if (errno != ENOENT) | |
c279613f | 844 | log_warning_errno(errno, "Opening %s failed, ignoring: %m", path); |
95ed3294 TA |
845 | |
846 | continue; | |
847 | } | |
848 | ||
c279613f LP |
849 | FOREACH_DIRENT(de, d, log_error_errno(errno, "Failed to enumerate directory %s, ignoring: %m", path)) { |
850 | _cleanup_free_ char *name = NULL, *fpath = NULL; | |
95ed3294 TA |
851 | int a, b; |
852 | ||
b9c59555 | 853 | if (de->d_name[0] != 'S') |
95ed3294 TA |
854 | continue; |
855 | ||
856 | if (strlen(de->d_name) < 4) | |
857 | continue; | |
858 | ||
859 | a = undecchar(de->d_name[1]); | |
860 | b = undecchar(de->d_name[2]); | |
861 | ||
862 | if (a < 0 || b < 0) | |
863 | continue; | |
864 | ||
605405c6 | 865 | fpath = strjoin(*p, "/", de->d_name); |
95ed3294 | 866 | if (!fpath) { |
c279613f | 867 | r = log_oom(); |
95ed3294 TA |
868 | goto finish; |
869 | } | |
870 | ||
871 | name = sysv_translate_name(de->d_name + 3); | |
872 | if (!name) { | |
873 | r = log_oom(); | |
874 | goto finish; | |
875 | } | |
876 | ||
8c84621c | 877 | service = hashmap_get(all_services, name); |
9ed794a3 | 878 | if (!service) { |
c279613f | 879 | log_debug("Ignoring %s symlink in %s, not generating %s.", de->d_name, rcnd_table[i].path, name); |
95ed3294 TA |
880 | continue; |
881 | } | |
882 | ||
b9c59555 | 883 | service->sysv_start_priority = MAX(a*10 + b, service->sysv_start_priority); |
95ed3294 | 884 | |
b9c59555 LP |
885 | r = set_ensure_allocated(&runlevel_services[i], NULL); |
886 | if (r < 0) { | |
887 | log_oom(); | |
888 | goto finish; | |
889 | } | |
95ed3294 | 890 | |
b9c59555 LP |
891 | r = set_put(runlevel_services[i], service); |
892 | if (r < 0) { | |
893 | log_oom(); | |
894 | goto finish; | |
95ed3294 TA |
895 | } |
896 | } | |
897 | } | |
c279613f | 898 | } |
95ed3294 | 899 | |
95ed3294 TA |
900 | for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) |
901 | SET_FOREACH(service, runlevel_services[i], j) { | |
902 | r = strv_extend(&service->before, rcnd_table[i].target); | |
c279613f LP |
903 | if (r < 0) { |
904 | log_oom(); | |
905 | goto finish; | |
906 | } | |
260ad50f | 907 | r = strv_extend(&service->wanted_by, rcnd_table[i].target); |
c279613f LP |
908 | if (r < 0) { |
909 | log_oom(); | |
910 | goto finish; | |
911 | } | |
95ed3294 TA |
912 | } |
913 | ||
95ed3294 TA |
914 | r = 0; |
915 | ||
916 | finish: | |
95ed3294 TA |
917 | for (i = 0; i < ELEMENTSOF(rcnd_table); i++) |
918 | set_free(runlevel_services[i]); | |
919 | ||
920 | return r; | |
921 | } | |
922 | ||
923 | int main(int argc, char *argv[]) { | |
5921fc3c | 924 | _cleanup_(free_sysvstub_hashmapp) Hashmap *all_services = NULL; |
c279613f | 925 | _cleanup_lookup_paths_free_ LookupPaths lp = {}; |
95ed3294 TA |
926 | SysvStub *service; |
927 | Iterator j; | |
c279613f | 928 | int r; |
95ed3294 TA |
929 | |
930 | if (argc > 1 && argc != 4) { | |
931 | log_error("This program takes three or no arguments."); | |
932 | return EXIT_FAILURE; | |
933 | } | |
934 | ||
935 | if (argc > 1) | |
936 | arg_dest = argv[3]; | |
937 | ||
938 | log_set_target(LOG_TARGET_SAFE); | |
939 | log_parse_environment(); | |
940 | log_open(); | |
941 | ||
942 | umask(0022); | |
943 | ||
4943d143 | 944 | r = lookup_paths_init(&lp, UNIT_FILE_SYSTEM, LOOKUP_PATHS_EXCLUDE_GENERATED, NULL); |
95ed3294 | 945 | if (r < 0) { |
c279613f LP |
946 | log_error_errno(r, "Failed to find lookup paths: %m"); |
947 | goto finish; | |
95ed3294 TA |
948 | } |
949 | ||
d5099efc | 950 | all_services = hashmap_new(&string_hash_ops); |
95ed3294 | 951 | if (!all_services) { |
c279613f LP |
952 | r = log_oom(); |
953 | goto finish; | |
95ed3294 TA |
954 | } |
955 | ||
a8ffe6fb | 956 | r = enumerate_sysv(&lp, all_services); |
c279613f LP |
957 | if (r < 0) |
958 | goto finish; | |
95ed3294 | 959 | |
a8ffe6fb | 960 | r = set_dependencies_from_rcnd(&lp, all_services); |
c279613f LP |
961 | if (r < 0) |
962 | goto finish; | |
95ed3294 | 963 | |
c279613f LP |
964 | HASHMAP_FOREACH(service, all_services, j) |
965 | (void) load_sysv(service); | |
b3fae863 | 966 | |
95ed3294 | 967 | HASHMAP_FOREACH(service, all_services, j) { |
c279613f LP |
968 | (void) fix_order(service, all_services); |
969 | (void) generate_unit_file(service); | |
95ed3294 TA |
970 | } |
971 | ||
c279613f LP |
972 | r = 0; |
973 | ||
974 | finish: | |
975 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; | |
95ed3294 | 976 | } |