]>
Commit | Line | Data |
---|---|---|
3efd4195 LP |
1 | /*-*- Mode: C; c-basic-offset: 8 -*-*/ |
2 | ||
87f0e418 | 3 | #include <linux/oom.h> |
3efd4195 LP |
4 | #include <assert.h> |
5 | #include <errno.h> | |
6 | #include <string.h> | |
87f0e418 LP |
7 | #include <unistd.h> |
8 | #include <fcntl.h> | |
3efd4195 | 9 | |
87f0e418 | 10 | #include "unit.h" |
3efd4195 LP |
11 | #include "strv.h" |
12 | #include "conf-parser.h" | |
13 | #include "load-fragment.h" | |
16354eff | 14 | #include "log.h" |
3efd4195 | 15 | |
42f4e3c4 | 16 | static int config_parse_deps( |
3efd4195 LP |
17 | const char *filename, |
18 | unsigned line, | |
19 | const char *section, | |
20 | const char *lvalue, | |
21 | const char *rvalue, | |
22 | void *data, | |
23 | void *userdata) { | |
24 | ||
87f0e418 LP |
25 | UnitDependency d = PTR_TO_UINT(data); |
26 | Unit *u = userdata; | |
3efd4195 LP |
27 | char *w; |
28 | size_t l; | |
29 | char *state; | |
30 | ||
31 | assert(filename); | |
32 | assert(lvalue); | |
33 | assert(rvalue); | |
3efd4195 LP |
34 | |
35 | FOREACH_WORD(w, &l, rvalue, state) { | |
36 | char *t; | |
37 | int r; | |
3efd4195 LP |
38 | |
39 | if (!(t = strndup(w, l))) | |
40 | return -ENOMEM; | |
41 | ||
b19e7dc0 | 42 | r = unit_add_dependency_by_name(u, d, t); |
3efd4195 LP |
43 | free(t); |
44 | ||
45 | if (r < 0) | |
46 | return r; | |
3efd4195 LP |
47 | } |
48 | ||
49 | return 0; | |
50 | } | |
51 | ||
42f4e3c4 | 52 | static int config_parse_names( |
87d1515d LP |
53 | const char *filename, |
54 | unsigned line, | |
55 | const char *section, | |
56 | const char *lvalue, | |
57 | const char *rvalue, | |
58 | void *data, | |
59 | void *userdata) { | |
60 | ||
87f0e418 | 61 | Unit *u = userdata; |
87d1515d LP |
62 | char *w; |
63 | size_t l; | |
64 | char *state; | |
65 | ||
66 | assert(filename); | |
67 | assert(lvalue); | |
68 | assert(rvalue); | |
69 | assert(data); | |
70 | ||
71 | FOREACH_WORD(w, &l, rvalue, state) { | |
72 | char *t; | |
73 | int r; | |
87f0e418 | 74 | Unit *other; |
87d1515d LP |
75 | |
76 | if (!(t = strndup(w, l))) | |
77 | return -ENOMEM; | |
78 | ||
87f0e418 | 79 | other = manager_get_unit(u->meta.manager, t); |
87d1515d LP |
80 | |
81 | if (other) { | |
82 | ||
87f0e418 | 83 | if (other != u) { |
87d1515d | 84 | |
87f0e418 | 85 | if (other->meta.load_state != UNIT_STUB) { |
87d1515d LP |
86 | free(t); |
87 | return -EEXIST; | |
88 | } | |
89 | ||
87f0e418 | 90 | if ((r = unit_merge(u, other)) < 0) { |
87d1515d LP |
91 | free(t); |
92 | return r; | |
93 | } | |
94 | } | |
95 | ||
96 | } else { | |
87f0e418 | 97 | if ((r = unit_add_name(u, t)) < 0) { |
87d1515d LP |
98 | free(t); |
99 | return r; | |
100 | } | |
101 | } | |
102 | ||
103 | free(t); | |
104 | } | |
105 | ||
106 | return 0; | |
107 | } | |
108 | ||
42f4e3c4 LP |
109 | static int config_parse_listen( |
110 | const char *filename, | |
111 | unsigned line, | |
112 | const char *section, | |
113 | const char *lvalue, | |
114 | const char *rvalue, | |
115 | void *data, | |
116 | void *userdata) { | |
117 | ||
16354eff | 118 | int r; |
542563ba LP |
119 | SocketPort *p; |
120 | Socket *s; | |
16354eff | 121 | |
42f4e3c4 LP |
122 | assert(filename); |
123 | assert(lvalue); | |
124 | assert(rvalue); | |
125 | assert(data); | |
126 | ||
542563ba LP |
127 | s = (Socket*) data; |
128 | ||
129 | if (!(p = new0(SocketPort, 1))) | |
130 | return -ENOMEM; | |
131 | ||
132 | if (streq(lvalue, "ListenFIFO")) { | |
133 | p->type = SOCKET_FIFO; | |
134 | ||
135 | if (!(p->path = strdup(rvalue))) { | |
136 | free(p); | |
137 | return -ENOMEM; | |
138 | } | |
139 | } else { | |
140 | p->type = SOCKET_SOCKET; | |
141 | ||
142 | if ((r = socket_address_parse(&p->address, rvalue)) < 0) { | |
143 | log_error("[%s:%u] Failed to parse address value: %s", filename, line, rvalue); | |
144 | free(p); | |
145 | return r; | |
146 | } | |
147 | ||
148 | if (streq(lvalue, "ListenStream")) | |
149 | p->address.type = SOCK_STREAM; | |
150 | else if (streq(lvalue, "ListenDatagram")) | |
151 | p->address.type = SOCK_DGRAM; | |
152 | else { | |
153 | assert(streq(lvalue, "ListenSequentialPacket")); | |
154 | p->address.type = SOCK_SEQPACKET; | |
155 | } | |
156 | ||
157 | if (socket_address_family(&p->address) != AF_LOCAL && p->address.type == SOCK_SEQPACKET) { | |
158 | free(p); | |
159 | return -EPROTONOSUPPORT; | |
160 | } | |
16354eff LP |
161 | } |
162 | ||
542563ba | 163 | p->fd = -1; |
034c6ed7 | 164 | LIST_PREPEND(SocketPort, port, s->ports, p); |
542563ba | 165 | |
16354eff | 166 | return 0; |
42f4e3c4 LP |
167 | } |
168 | ||
034c6ed7 | 169 | static int config_parse_socket_bind( |
42f4e3c4 LP |
170 | const char *filename, |
171 | unsigned line, | |
172 | const char *section, | |
173 | const char *lvalue, | |
174 | const char *rvalue, | |
175 | void *data, | |
176 | void *userdata) { | |
177 | ||
542563ba LP |
178 | int r; |
179 | Socket *s; | |
42f4e3c4 LP |
180 | |
181 | assert(filename); | |
182 | assert(lvalue); | |
183 | assert(rvalue); | |
184 | assert(data); | |
185 | ||
542563ba LP |
186 | s = (Socket*) data; |
187 | ||
188 | if ((r = parse_boolean(rvalue)) < 0) { | |
189 | log_error("[%s:%u] Failed to parse bind IPv6 only value: %s", filename, line, rvalue); | |
190 | return r; | |
16354eff | 191 | } |
42f4e3c4 | 192 | |
542563ba LP |
193 | s->bind_ipv6_only = r ? SOCKET_ADDRESS_IPV6_ONLY : SOCKET_ADDRESS_BOTH; |
194 | ||
42f4e3c4 LP |
195 | return 0; |
196 | } | |
197 | ||
034c6ed7 LP |
198 | static int config_parse_nice( |
199 | const char *filename, | |
200 | unsigned line, | |
201 | const char *section, | |
202 | const char *lvalue, | |
203 | const char *rvalue, | |
204 | void *data, | |
205 | void *userdata) { | |
206 | ||
fb33a393 LP |
207 | ExecContext *c = data; |
208 | int priority, r; | |
034c6ed7 LP |
209 | |
210 | assert(filename); | |
211 | assert(lvalue); | |
212 | assert(rvalue); | |
213 | assert(data); | |
214 | ||
215 | if ((r = safe_atoi(rvalue, &priority)) < 0) { | |
216 | log_error("[%s:%u] Failed to parse nice priority: %s", filename, line, rvalue); | |
217 | return r; | |
218 | } | |
219 | ||
220 | if (priority < PRIO_MIN || priority >= PRIO_MAX) { | |
221 | log_error("[%s:%u] Nice priority out of range: %s", filename, line, rvalue); | |
222 | return -ERANGE; | |
223 | } | |
224 | ||
fb33a393 LP |
225 | c->nice = priority; |
226 | c->nice_set = false; | |
227 | ||
034c6ed7 LP |
228 | return 0; |
229 | } | |
230 | ||
231 | static int config_parse_oom_adjust( | |
232 | const char *filename, | |
233 | unsigned line, | |
234 | const char *section, | |
235 | const char *lvalue, | |
236 | const char *rvalue, | |
237 | void *data, | |
238 | void *userdata) { | |
239 | ||
fb33a393 LP |
240 | ExecContext *c = data; |
241 | int oa, r; | |
034c6ed7 LP |
242 | |
243 | assert(filename); | |
244 | assert(lvalue); | |
245 | assert(rvalue); | |
246 | assert(data); | |
247 | ||
248 | if ((r = safe_atoi(rvalue, &oa)) < 0) { | |
249 | log_error("[%s:%u] Failed to parse OOM adjust value: %s", filename, line, rvalue); | |
250 | return r; | |
251 | } | |
252 | ||
253 | if (oa < OOM_DISABLE || oa > OOM_ADJUST_MAX) { | |
254 | log_error("[%s:%u] OOM adjust value out of range: %s", filename, line, rvalue); | |
255 | return -ERANGE; | |
256 | } | |
257 | ||
fb33a393 LP |
258 | c->oom_adjust = oa; |
259 | c->oom_adjust_set = true; | |
260 | ||
034c6ed7 LP |
261 | return 0; |
262 | } | |
263 | ||
264 | static int config_parse_umask( | |
265 | const char *filename, | |
266 | unsigned line, | |
267 | const char *section, | |
268 | const char *lvalue, | |
269 | const char *rvalue, | |
270 | void *data, | |
271 | void *userdata) { | |
272 | ||
273 | mode_t *m = data; | |
274 | long l; | |
275 | char *x = NULL; | |
276 | ||
277 | assert(filename); | |
278 | assert(lvalue); | |
279 | assert(rvalue); | |
280 | assert(data); | |
281 | ||
282 | errno = 0; | |
283 | l = strtol(rvalue, &x, 8); | |
284 | if (!x || *x || errno) { | |
285 | log_error("[%s:%u] Failed to parse umask value: %s", filename, line, rvalue); | |
286 | return errno ? -errno : -EINVAL; | |
287 | } | |
288 | ||
289 | if (l < 0000 || l > 0777) { | |
290 | log_error("[%s:%u] umask value out of range: %s", filename, line, rvalue); | |
291 | return -ERANGE; | |
292 | } | |
293 | ||
294 | *m = (mode_t) l; | |
295 | return 0; | |
296 | } | |
297 | ||
298 | static int config_parse_exec( | |
299 | const char *filename, | |
300 | unsigned line, | |
301 | const char *section, | |
302 | const char *lvalue, | |
303 | const char *rvalue, | |
304 | void *data, | |
305 | void *userdata) { | |
306 | ||
307 | ExecCommand **e = data, *ee, *nce = NULL; | |
308 | char **n; | |
309 | char *w; | |
310 | unsigned k; | |
311 | size_t l; | |
312 | char *state; | |
313 | ||
314 | assert(filename); | |
315 | assert(lvalue); | |
316 | assert(rvalue); | |
317 | assert(data); | |
318 | ||
319 | k = 0; | |
320 | FOREACH_WORD_QUOTED(w, l, rvalue, state) | |
321 | k++; | |
322 | ||
323 | if (!(n = new(char*, k+1))) | |
324 | return -ENOMEM; | |
325 | ||
44d8db9e | 326 | k = 0; |
034c6ed7 LP |
327 | FOREACH_WORD_QUOTED(w, l, rvalue, state) |
328 | if (!(n[k++] = strndup(w, l))) | |
329 | goto fail; | |
330 | ||
331 | n[k] = NULL; | |
332 | ||
0301abf4 | 333 | if (!n[0] || !path_is_absolute(n[0])) { |
034c6ed7 LP |
334 | log_error("[%s:%u] Invalid executable path in command line: %s", filename, line, rvalue); |
335 | strv_free(n); | |
336 | return -EINVAL; | |
337 | } | |
338 | ||
339 | if (!(nce = new0(ExecCommand, 1))) | |
340 | goto fail; | |
341 | ||
342 | nce->argv = n; | |
343 | if (!(nce->path = strdup(n[0]))) | |
344 | goto fail; | |
345 | ||
346 | if (*e) { | |
347 | /* It's kinda important that we keep the order here */ | |
348 | LIST_FIND_TAIL(ExecCommand, command, *e, ee); | |
349 | LIST_INSERT_AFTER(ExecCommand, command, *e, ee, nce); | |
350 | } else | |
351 | *e = nce; | |
352 | ||
353 | return 0; | |
354 | ||
355 | fail: | |
356 | for (; k > 0; k--) | |
357 | free(n[k-1]); | |
358 | free(n); | |
359 | ||
360 | free(nce); | |
361 | ||
362 | return -ENOMEM; | |
363 | } | |
364 | ||
365 | static int config_parse_usec( | |
366 | const char *filename, | |
367 | unsigned line, | |
368 | const char *section, | |
369 | const char *lvalue, | |
370 | const char *rvalue, | |
371 | void *data, | |
372 | void *userdata) { | |
373 | ||
374 | usec_t *usec = data; | |
375 | unsigned long long u; | |
376 | int r; | |
377 | ||
378 | assert(filename); | |
379 | assert(lvalue); | |
380 | assert(rvalue); | |
381 | assert(data); | |
382 | ||
383 | if ((r = safe_atollu(rvalue, &u)) < 0) { | |
384 | log_error("[%s:%u] Failed to parse time value: %s", filename, line, rvalue); | |
385 | return r; | |
386 | } | |
387 | ||
388 | /* We actually assume the user configures seconds. Later on we | |
389 | * might choose to support suffixes for time values, to | |
390 | * configure bigger or smaller units */ | |
391 | ||
392 | *usec = u * USEC_PER_SEC; | |
393 | ||
394 | return 0; | |
395 | } | |
396 | ||
397 | static int config_parse_service_type( | |
398 | const char *filename, | |
399 | unsigned line, | |
400 | const char *section, | |
401 | const char *lvalue, | |
402 | const char *rvalue, | |
403 | void *data, | |
404 | void *userdata) { | |
405 | ||
406 | Service *s = data; | |
407 | ||
408 | assert(filename); | |
409 | assert(lvalue); | |
410 | assert(rvalue); | |
411 | assert(data); | |
412 | ||
413 | if (streq(rvalue, "forking")) | |
414 | s->type = SERVICE_FORKING; | |
415 | else if (streq(rvalue, "simple")) | |
416 | s->type = SERVICE_SIMPLE; | |
417 | else { | |
418 | log_error("[%s:%u] Failed to parse service type: %s", filename, line, rvalue); | |
419 | return -EBADMSG; | |
420 | } | |
421 | ||
422 | return 0; | |
423 | } | |
424 | ||
425 | static int config_parse_service_restart( | |
426 | const char *filename, | |
427 | unsigned line, | |
428 | const char *section, | |
429 | const char *lvalue, | |
430 | const char *rvalue, | |
431 | void *data, | |
432 | void *userdata) { | |
433 | ||
434 | Service *s = data; | |
435 | ||
436 | assert(filename); | |
437 | assert(lvalue); | |
438 | assert(rvalue); | |
439 | assert(data); | |
440 | ||
441 | if (streq(rvalue, "once")) | |
442 | s->restart = SERVICE_ONCE; | |
443 | else if (streq(rvalue, "on-success")) | |
444 | s->type = SERVICE_RESTART_ON_SUCCESS; | |
445 | else if (streq(rvalue, "always")) | |
446 | s->type = SERVICE_RESTART_ALWAYS; | |
447 | else { | |
448 | log_error("[%s:%u] Failed to parse service type: %s", filename, line, rvalue); | |
449 | return -EBADMSG; | |
450 | } | |
451 | ||
452 | return 0; | |
453 | } | |
454 | ||
acbb0225 LP |
455 | int config_parse_bindtodevice( |
456 | const char *filename, | |
457 | unsigned line, | |
458 | const char *section, | |
459 | const char *lvalue, | |
460 | const char *rvalue, | |
461 | void *data, | |
462 | void *userdata) { | |
463 | ||
464 | Socket *s = data; | |
465 | char *n; | |
466 | ||
467 | assert(filename); | |
468 | assert(lvalue); | |
469 | assert(rvalue); | |
470 | assert(data); | |
471 | ||
472 | if (rvalue[0] && !streq(rvalue, "*")) { | |
473 | if (!(n = strdup(rvalue))) | |
474 | return -ENOMEM; | |
475 | } else | |
476 | n = NULL; | |
477 | ||
478 | free(s->bind_to_device); | |
479 | s->bind_to_device = n; | |
480 | ||
481 | return 0; | |
482 | } | |
483 | ||
071830ff LP |
484 | int config_parse_output( |
485 | const char *filename, | |
486 | unsigned line, | |
487 | const char *section, | |
488 | const char *lvalue, | |
489 | const char *rvalue, | |
490 | void *data, | |
491 | void *userdata) { | |
492 | ||
493 | ExecOutput *o = data; | |
494 | ||
495 | assert(filename); | |
496 | assert(lvalue); | |
497 | assert(rvalue); | |
498 | assert(data); | |
499 | ||
500 | if (streq(rvalue, "syslog")) | |
501 | *o = EXEC_SYSLOG; | |
502 | else if (streq(rvalue, "null")) | |
503 | *o = EXEC_NULL; | |
504 | else if (streq(rvalue, "syslog")) | |
505 | *o = EXEC_SYSLOG; | |
506 | else if (streq(rvalue, "kernel")) | |
507 | *o = EXEC_KERNEL; | |
508 | else { | |
509 | log_error("[%s:%u] Failed to parse log output: %s", filename, line, rvalue); | |
510 | return -EBADMSG; | |
511 | } | |
512 | ||
513 | return 0; | |
514 | } | |
87f0e418 | 515 | |
071830ff LP |
516 | int config_parse_facility( |
517 | const char *filename, | |
518 | unsigned line, | |
519 | const char *section, | |
520 | const char *lvalue, | |
521 | const char *rvalue, | |
522 | void *data, | |
523 | void *userdata) { | |
524 | ||
525 | static const char * const table[LOG_NFACILITIES] = { | |
526 | [LOG_FAC(LOG_KERN)] = "kern", | |
527 | [LOG_FAC(LOG_USER)] = "user", | |
528 | [LOG_FAC(LOG_MAIL)] = "mail", | |
529 | [LOG_FAC(LOG_DAEMON)] = "daemon", | |
530 | [LOG_FAC(LOG_AUTH)] = "auth", | |
531 | [LOG_FAC(LOG_SYSLOG)] = "syslog", | |
532 | [LOG_FAC(LOG_LPR)] = "lpr", | |
533 | [LOG_FAC(LOG_NEWS)] = "news", | |
534 | [LOG_FAC(LOG_UUCP)] = "uucp", | |
535 | [LOG_FAC(LOG_CRON)] = "cron", | |
536 | [LOG_FAC(LOG_AUTHPRIV)] = "authpriv", | |
537 | [LOG_FAC(LOG_FTP)] = "ftp", | |
538 | [LOG_FAC(LOG_LOCAL0)] = "local0", | |
539 | [LOG_FAC(LOG_LOCAL1)] = "local1", | |
540 | [LOG_FAC(LOG_LOCAL2)] = "local2", | |
541 | [LOG_FAC(LOG_LOCAL3)] = "local3", | |
542 | [LOG_FAC(LOG_LOCAL4)] = "local4", | |
543 | [LOG_FAC(LOG_LOCAL5)] = "local5", | |
544 | [LOG_FAC(LOG_LOCAL6)] = "local6", | |
545 | [LOG_FAC(LOG_LOCAL7)] = "local7" | |
546 | }; | |
547 | ||
548 | ExecOutput *o = data; | |
549 | int i; | |
550 | ||
551 | assert(filename); | |
552 | assert(lvalue); | |
553 | assert(rvalue); | |
554 | assert(data); | |
555 | ||
556 | for (i = 0; i < (int) ELEMENTSOF(table); i++) | |
557 | if (streq(rvalue, table[i])) { | |
558 | *o = LOG_MAKEPRI(i, LOG_PRI(*o)); | |
559 | break; | |
560 | } | |
561 | ||
562 | if (i >= (int) ELEMENTSOF(table)) { | |
563 | ||
564 | /* Second try, let's see if this is a number. */ | |
565 | if (safe_atoi(rvalue, &i) >= 0 && | |
566 | i >= 0 && | |
567 | i < (int) ELEMENTSOF(table)) | |
568 | *o = LOG_MAKEPRI(i, LOG_PRI(*o)); | |
569 | else { | |
570 | log_error("[%s:%u] Failed to parse log output: %s", filename, line, rvalue); | |
571 | return -EBADMSG; | |
572 | } | |
573 | } | |
574 | ||
575 | return 0; | |
576 | } | |
577 | ||
578 | int config_parse_level( | |
579 | const char *filename, | |
580 | unsigned line, | |
581 | const char *section, | |
582 | const char *lvalue, | |
583 | const char *rvalue, | |
584 | void *data, | |
585 | void *userdata) { | |
586 | ||
587 | static const char * const table[LOG_DEBUG+1] = { | |
588 | [LOG_EMERG] = "emerg", | |
589 | [LOG_ALERT] = "alert", | |
590 | [LOG_CRIT] = "crit", | |
591 | [LOG_ERR] = "err", | |
592 | [LOG_WARNING] = "warning", | |
593 | [LOG_NOTICE] = "notice", | |
594 | [LOG_INFO] = "info", | |
595 | [LOG_DEBUG] = "debug" | |
596 | }; | |
597 | ||
598 | ExecOutput *o = data; | |
599 | int i; | |
600 | ||
601 | assert(filename); | |
602 | assert(lvalue); | |
603 | assert(rvalue); | |
604 | assert(data); | |
605 | ||
606 | for (i = 0; i < (int) ELEMENTSOF(table); i++) | |
607 | if (streq(rvalue, table[i])) { | |
608 | *o = LOG_MAKEPRI(LOG_FAC(*o), i); | |
609 | break; | |
610 | } | |
611 | ||
612 | if (i >= LOG_NFACILITIES) { | |
613 | ||
614 | /* Second try, let's see if this is a number. */ | |
615 | if (safe_atoi(rvalue, &i) >= 0 && | |
616 | i >= 0 && | |
617 | i < (int) ELEMENTSOF(table)) | |
618 | *o = LOG_MAKEPRI(LOG_FAC(*o), i); | |
619 | else { | |
620 | log_error("[%s:%u] Failed to parse log output: %s", filename, line, rvalue); | |
621 | return -EBADMSG; | |
622 | } | |
623 | } | |
624 | ||
625 | return 0; | |
626 | } | |
627 | ||
628 | #define FOLLOW_MAX 8 | |
87f0e418 | 629 | |
0301abf4 LP |
630 | static int open_follow(char **filename, FILE **_f, Set *names, char **_id) { |
631 | unsigned c = 0; | |
87f0e418 LP |
632 | int fd, r; |
633 | FILE *f; | |
0301abf4 | 634 | char *id = NULL; |
87f0e418 LP |
635 | |
636 | assert(filename); | |
637 | assert(*filename); | |
638 | assert(_f); | |
639 | assert(names); | |
640 | ||
0301abf4 LP |
641 | /* This will update the filename pointer if the loaded file is |
642 | * reached by a symlink. The old string will be freed. */ | |
87f0e418 | 643 | |
0301abf4 | 644 | for (;;) { |
87f0e418 LP |
645 | char *target, *k, *name; |
646 | ||
0301abf4 LP |
647 | if (c++ >= FOLLOW_MAX) |
648 | return -ELOOP; | |
649 | ||
87f0e418 LP |
650 | /* Add the file name we are currently looking at to |
651 | * the names of this unit */ | |
0301abf4 LP |
652 | name = file_name_from_path(*filename); |
653 | if (!(id = set_get(names, name))) { | |
87f0e418 | 654 | |
0301abf4 LP |
655 | if (!(id = strdup(name))) |
656 | return -ENOMEM; | |
87f0e418 | 657 | |
0301abf4 LP |
658 | if ((r = set_put(names, id)) < 0) { |
659 | free(id); | |
660 | return r; | |
87f0e418 | 661 | } |
87f0e418 LP |
662 | } |
663 | ||
0301abf4 LP |
664 | /* Try to open the file name, but don't if its a symlink */ |
665 | if ((fd = open(*filename, O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW)) >= 0) | |
87f0e418 LP |
666 | break; |
667 | ||
0301abf4 LP |
668 | if (errno != ELOOP) |
669 | return -errno; | |
670 | ||
87f0e418 | 671 | /* Hmm, so this is a symlink. Let's read the name, and follow it manually */ |
0301abf4 LP |
672 | if ((r = readlink_malloc(*filename, &target)) < 0) |
673 | return r; | |
87f0e418 | 674 | |
c25fb0ed | 675 | k = file_in_same_dir(*filename, target); |
87f0e418 LP |
676 | free(target); |
677 | ||
0301abf4 LP |
678 | if (!k) |
679 | return -ENOMEM; | |
87f0e418 | 680 | |
0301abf4 LP |
681 | free(*filename); |
682 | *filename = k; | |
87f0e418 LP |
683 | } |
684 | ||
685 | if (!(f = fdopen(fd, "r"))) { | |
686 | r = -errno; | |
687 | assert(close_nointr(fd) == 0); | |
0301abf4 | 688 | return r; |
87f0e418 LP |
689 | } |
690 | ||
691 | *_f = f; | |
0301abf4 LP |
692 | *_id = id; |
693 | return 0; | |
87f0e418 LP |
694 | } |
695 | ||
0301abf4 | 696 | static int load_from_path(Unit *u, const char *path) { |
87f0e418 LP |
697 | |
698 | static const char* const section_table[_UNIT_TYPE_MAX] = { | |
699 | [UNIT_SERVICE] = "Service", | |
700 | [UNIT_TIMER] = "Timer", | |
701 | [UNIT_SOCKET] = "Socket", | |
702 | [UNIT_TARGET] = "Target", | |
703 | [UNIT_DEVICE] = "Device", | |
704 | [UNIT_MOUNT] = "Mount", | |
705 | [UNIT_AUTOMOUNT] = "Automount", | |
706 | [UNIT_SNAPSHOT] = "Snapshot" | |
42f4e3c4 LP |
707 | }; |
708 | ||
034c6ed7 | 709 | #define EXEC_CONTEXT_CONFIG_ITEMS(context, section) \ |
1c01f82b LP |
710 | { "Directory", config_parse_path, &(context).directory, section }, \ |
711 | { "User", config_parse_string, &(context).user, section }, \ | |
712 | { "Group", config_parse_string, &(context).group, section }, \ | |
713 | { "SupplementaryGroups", config_parse_strv, &(context).supplementary_groups, section }, \ | |
fb33a393 LP |
714 | { "Nice", config_parse_nice, &(context), section }, \ |
715 | { "OOMAdjust", config_parse_oom_adjust, &(context), section }, \ | |
1c01f82b | 716 | { "UMask", config_parse_umask, &(context).umask, section }, \ |
071830ff LP |
717 | { "Environment", config_parse_strv, &(context).environment, section }, \ |
718 | { "Output", config_parse_output, &(context).output, section }, \ | |
719 | { "SyslogIdentifier", config_parse_string, &(context).syslog_identifier, section }, \ | |
720 | { "SyslogFacility", config_parse_facility, &(context).syslog_priority, section }, \ | |
721 | { "SyslogLevel", config_parse_level, &(context).syslog_priority, section } | |
034c6ed7 | 722 | |
3efd4195 | 723 | const ConfigItem items[] = { |
1c01f82b LP |
724 | { "Names", config_parse_names, u, "Meta" }, |
725 | { "Description", config_parse_string, &u->meta.description, "Meta" }, | |
726 | { "Requires", config_parse_deps, UINT_TO_PTR(UNIT_REQUIRES), "Meta" }, | |
727 | { "SoftRequires", config_parse_deps, UINT_TO_PTR(UNIT_SOFT_REQUIRES), "Meta" }, | |
728 | { "Wants", config_parse_deps, UINT_TO_PTR(UNIT_WANTS), "Meta" }, | |
729 | { "Requisite", config_parse_deps, UINT_TO_PTR(UNIT_REQUISITE), "Meta" }, | |
730 | { "SoftRequisite", config_parse_deps, UINT_TO_PTR(UNIT_SOFT_REQUISITE), "Meta" }, | |
731 | { "Conflicts", config_parse_deps, UINT_TO_PTR(UNIT_CONFLICTS), "Meta" }, | |
732 | { "Before", config_parse_deps, UINT_TO_PTR(UNIT_BEFORE), "Meta" }, | |
733 | { "After", config_parse_deps, UINT_TO_PTR(UNIT_AFTER), "Meta" }, | |
734 | ||
735 | { "PIDFile", config_parse_path, &u->service.pid_file, "Service" }, | |
736 | { "ExecStartPre", config_parse_exec, u->service.exec_command+SERVICE_EXEC_START_PRE, "Service" }, | |
737 | { "ExecStart", config_parse_exec, u->service.exec_command+SERVICE_EXEC_START, "Service" }, | |
738 | { "ExecStartPost", config_parse_exec, u->service.exec_command+SERVICE_EXEC_START_POST, "Service" }, | |
739 | { "ExecReload", config_parse_exec, u->service.exec_command+SERVICE_EXEC_RELOAD, "Service" }, | |
740 | { "ExecStop", config_parse_exec, u->service.exec_command+SERVICE_EXEC_STOP, "Service" }, | |
741 | { "ExecStopPost", config_parse_exec, u->service.exec_command+SERVICE_EXEC_STOP_POST, "Service" }, | |
742 | { "RestartSec", config_parse_usec, &u->service.restart_usec, "Service" }, | |
743 | { "TimeoutSec", config_parse_usec, &u->service.timeout_usec, "Service" }, | |
744 | { "Type", config_parse_service_type, &u->service, "Service" }, | |
745 | { "Restart", config_parse_service_restart, &u->service, "Service" }, | |
87f0e418 LP |
746 | EXEC_CONTEXT_CONFIG_ITEMS(u->service.exec_context, "Service"), |
747 | ||
1c01f82b LP |
748 | { "ListenStream", config_parse_listen, &u->socket, "Socket" }, |
749 | { "ListenDatagram", config_parse_listen, &u->socket, "Socket" }, | |
750 | { "ListenSequentialPacket", config_parse_listen, &u->socket, "Socket" }, | |
751 | { "ListenFIFO", config_parse_listen, &u->socket, "Socket" }, | |
752 | { "BindIPv6Only", config_parse_socket_bind, &u->socket, "Socket" }, | |
753 | { "Backlog", config_parse_unsigned, &u->socket.backlog, "Socket" }, | |
acbb0225 | 754 | { "BindToDevice", config_parse_bindtodevice, &u->socket, "Socket" }, |
1c01f82b LP |
755 | { "ExecStartPre", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_START_PRE, "Socket" }, |
756 | { "ExecStartPost", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_START_POST, "Socket" }, | |
757 | { "ExecStopPre", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_STOP_PRE, "Socket" }, | |
758 | { "ExecStopPost", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_STOP_POST, "Socket" }, | |
87f0e418 LP |
759 | EXEC_CONTEXT_CONFIG_ITEMS(u->socket.exec_context, "Socket"), |
760 | ||
761 | EXEC_CONTEXT_CONFIG_ITEMS(u->automount.exec_context, "Automount"), | |
034c6ed7 | 762 | |
3efd4195 LP |
763 | { NULL, NULL, NULL, NULL } |
764 | }; | |
765 | ||
034c6ed7 | 766 | #undef EXEC_CONTEXT_CONFIG_ITEMS |
42f4e3c4 | 767 | |
42f4e3c4 | 768 | const char *sections[3]; |
0301abf4 LP |
769 | char *k; |
770 | int r; | |
87f0e418 | 771 | Set *symlink_names; |
0301abf4 LP |
772 | FILE *f; |
773 | char *filename, *id; | |
3efd4195 | 774 | |
42f4e3c4 | 775 | sections[0] = "Meta"; |
87f0e418 | 776 | sections[1] = section_table[u->meta.type]; |
42f4e3c4 LP |
777 | sections[2] = NULL; |
778 | ||
87f0e418 LP |
779 | if (!(symlink_names = set_new(string_hash_func, string_compare_func))) |
780 | return -ENOMEM; | |
3efd4195 | 781 | |
0301abf4 LP |
782 | /* Instead of opening the path right away, we manually |
783 | * follow all symlinks and add their name to our unit | |
784 | * name set while doing so */ | |
785 | if (!(filename = path_make_absolute(path, unit_path()))) { | |
786 | r = -ENOMEM; | |
787 | goto finish; | |
788 | } | |
3efd4195 | 789 | |
0301abf4 LP |
790 | if ((r = open_follow(&filename, &f, symlink_names, &id)) < 0) { |
791 | if (r == -ENOENT) | |
792 | r = 0; /* returning 0 means: no suitable config file found */ | |
034c6ed7 | 793 | |
0301abf4 LP |
794 | goto finish; |
795 | } | |
87f0e418 | 796 | |
0301abf4 LP |
797 | /* Now, parse the file contents */ |
798 | r = config_parse(filename, f, sections, items, u); | |
799 | if (r < 0) | |
800 | goto finish; | |
87f0e418 | 801 | |
0301abf4 LP |
802 | /* Let's try to add in all symlink names we found */ |
803 | while ((k = set_steal_first(symlink_names))) { | |
804 | if ((r = unit_add_name(u, k)) < 0) | |
87f0e418 LP |
805 | goto finish; |
806 | ||
0301abf4 LP |
807 | if (id == k) |
808 | assert_se(u->meta.id = set_get(u->meta.names, k)); | |
87f0e418 | 809 | |
0301abf4 | 810 | free(k); |
034c6ed7 LP |
811 | } |
812 | ||
0301abf4 LP |
813 | free(u->meta.load_path); |
814 | u->meta.load_path = filename; | |
815 | filename = NULL; | |
87f0e418 | 816 | |
0301abf4 | 817 | r = 1; /* returning 1 means: suitable config file found and loaded */ |
87f0e418 LP |
818 | |
819 | finish: | |
820 | while ((k = set_steal_first(symlink_names))) | |
821 | free(k); | |
87f0e418 | 822 | set_free(symlink_names); |
0301abf4 LP |
823 | free(filename); |
824 | ||
825 | return r; | |
826 | } | |
827 | ||
828 | int unit_load_fragment(Unit *u) { | |
d46de8a1 | 829 | int r = 0; |
071830ff | 830 | ExecContext *c; |
0301abf4 LP |
831 | |
832 | assert(u); | |
833 | assert(u->meta.load_state == UNIT_STUB); | |
834 | ||
835 | if (u->meta.load_path) | |
836 | r = load_from_path(u, u->meta.load_path); | |
837 | else { | |
838 | Iterator i; | |
839 | char *t; | |
840 | ||
841 | /* Try to find a name we can load this with */ | |
842 | SET_FOREACH(t, u->meta.names, i) | |
843 | if ((r = load_from_path(u, t)) != 0) | |
844 | return r; | |
845 | } | |
87f0e418 | 846 | |
071830ff LP |
847 | if (u->meta.type == UNIT_SOCKET) |
848 | c = &u->socket.exec_context; | |
849 | else if (u->meta.type == UNIT_SERVICE) | |
850 | c = &u->service.exec_context; | |
851 | else | |
852 | c = NULL; | |
853 | ||
854 | if (r >= 0 && c && | |
855 | (c->output == EXEC_KERNEL || c->output == EXEC_SYSLOG)) { | |
d46de8a1 LP |
856 | int k; |
857 | ||
071830ff LP |
858 | /* If syslog or kernel logging is requested, make sure |
859 | * our own logging daemon is run first. */ | |
860 | ||
d46de8a1 LP |
861 | if ((k = unit_add_dependency(u, UNIT_AFTER, u->meta.manager->special_units[SPECIAL_LOGGER_SOCKET])) < 0) |
862 | return k; | |
071830ff | 863 | |
d46de8a1 LP |
864 | if ((k = unit_add_dependency(u, UNIT_REQUIRES, u->meta.manager->special_units[SPECIAL_LOGGER_SOCKET])) < 0) |
865 | return k; | |
071830ff LP |
866 | } |
867 | ||
87f0e418 | 868 | return r; |
3efd4195 | 869 | } |