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Commit | Line | Data |
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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" |
9eba9da4 | 15 | #include "ioprio.h" |
3efd4195 | 16 | |
42f4e3c4 | 17 | static int config_parse_deps( |
3efd4195 LP |
18 | const char *filename, |
19 | unsigned line, | |
20 | const char *section, | |
21 | const char *lvalue, | |
22 | const char *rvalue, | |
23 | void *data, | |
24 | void *userdata) { | |
25 | ||
87f0e418 LP |
26 | UnitDependency d = PTR_TO_UINT(data); |
27 | Unit *u = userdata; | |
3efd4195 LP |
28 | char *w; |
29 | size_t l; | |
30 | char *state; | |
31 | ||
32 | assert(filename); | |
33 | assert(lvalue); | |
34 | assert(rvalue); | |
3efd4195 LP |
35 | |
36 | FOREACH_WORD(w, &l, rvalue, state) { | |
37 | char *t; | |
38 | int r; | |
3efd4195 LP |
39 | |
40 | if (!(t = strndup(w, l))) | |
41 | return -ENOMEM; | |
42 | ||
b19e7dc0 | 43 | r = unit_add_dependency_by_name(u, d, t); |
3efd4195 LP |
44 | free(t); |
45 | ||
46 | if (r < 0) | |
47 | return r; | |
3efd4195 LP |
48 | } |
49 | ||
50 | return 0; | |
51 | } | |
52 | ||
42f4e3c4 | 53 | static int config_parse_names( |
87d1515d LP |
54 | const char *filename, |
55 | unsigned line, | |
56 | const char *section, | |
57 | const char *lvalue, | |
58 | const char *rvalue, | |
59 | void *data, | |
60 | void *userdata) { | |
61 | ||
87f0e418 | 62 | Unit *u = userdata; |
87d1515d LP |
63 | char *w; |
64 | size_t l; | |
65 | char *state; | |
66 | ||
67 | assert(filename); | |
68 | assert(lvalue); | |
69 | assert(rvalue); | |
70 | assert(data); | |
71 | ||
72 | FOREACH_WORD(w, &l, rvalue, state) { | |
73 | char *t; | |
74 | int r; | |
87f0e418 | 75 | Unit *other; |
87d1515d LP |
76 | |
77 | if (!(t = strndup(w, l))) | |
78 | return -ENOMEM; | |
79 | ||
87f0e418 | 80 | other = manager_get_unit(u->meta.manager, t); |
87d1515d LP |
81 | |
82 | if (other) { | |
83 | ||
87f0e418 | 84 | if (other != u) { |
87d1515d | 85 | |
87f0e418 | 86 | if (other->meta.load_state != UNIT_STUB) { |
87d1515d LP |
87 | free(t); |
88 | return -EEXIST; | |
89 | } | |
90 | ||
87f0e418 | 91 | if ((r = unit_merge(u, other)) < 0) { |
87d1515d LP |
92 | free(t); |
93 | return r; | |
94 | } | |
95 | } | |
96 | ||
97 | } else { | |
87f0e418 | 98 | if ((r = unit_add_name(u, t)) < 0) { |
87d1515d LP |
99 | free(t); |
100 | return r; | |
101 | } | |
102 | } | |
103 | ||
104 | free(t); | |
105 | } | |
106 | ||
107 | return 0; | |
108 | } | |
109 | ||
42f4e3c4 LP |
110 | static int config_parse_listen( |
111 | const char *filename, | |
112 | unsigned line, | |
113 | const char *section, | |
114 | const char *lvalue, | |
115 | const char *rvalue, | |
116 | void *data, | |
117 | void *userdata) { | |
118 | ||
16354eff | 119 | int r; |
542563ba LP |
120 | SocketPort *p; |
121 | Socket *s; | |
16354eff | 122 | |
42f4e3c4 LP |
123 | assert(filename); |
124 | assert(lvalue); | |
125 | assert(rvalue); | |
126 | assert(data); | |
127 | ||
542563ba LP |
128 | s = (Socket*) data; |
129 | ||
130 | if (!(p = new0(SocketPort, 1))) | |
131 | return -ENOMEM; | |
132 | ||
133 | if (streq(lvalue, "ListenFIFO")) { | |
134 | p->type = SOCKET_FIFO; | |
135 | ||
136 | if (!(p->path = strdup(rvalue))) { | |
137 | free(p); | |
138 | return -ENOMEM; | |
139 | } | |
140 | } else { | |
141 | p->type = SOCKET_SOCKET; | |
142 | ||
143 | if ((r = socket_address_parse(&p->address, rvalue)) < 0) { | |
144 | log_error("[%s:%u] Failed to parse address value: %s", filename, line, rvalue); | |
145 | free(p); | |
146 | return r; | |
147 | } | |
148 | ||
149 | if (streq(lvalue, "ListenStream")) | |
150 | p->address.type = SOCK_STREAM; | |
151 | else if (streq(lvalue, "ListenDatagram")) | |
152 | p->address.type = SOCK_DGRAM; | |
153 | else { | |
154 | assert(streq(lvalue, "ListenSequentialPacket")); | |
155 | p->address.type = SOCK_SEQPACKET; | |
156 | } | |
157 | ||
158 | if (socket_address_family(&p->address) != AF_LOCAL && p->address.type == SOCK_SEQPACKET) { | |
159 | free(p); | |
160 | return -EPROTONOSUPPORT; | |
161 | } | |
16354eff LP |
162 | } |
163 | ||
542563ba | 164 | p->fd = -1; |
034c6ed7 | 165 | LIST_PREPEND(SocketPort, port, s->ports, p); |
542563ba | 166 | |
16354eff | 167 | return 0; |
42f4e3c4 LP |
168 | } |
169 | ||
034c6ed7 | 170 | static int config_parse_socket_bind( |
42f4e3c4 LP |
171 | const char *filename, |
172 | unsigned line, | |
173 | const char *section, | |
174 | const char *lvalue, | |
175 | const char *rvalue, | |
176 | void *data, | |
177 | void *userdata) { | |
178 | ||
542563ba LP |
179 | int r; |
180 | Socket *s; | |
42f4e3c4 LP |
181 | |
182 | assert(filename); | |
183 | assert(lvalue); | |
184 | assert(rvalue); | |
185 | assert(data); | |
186 | ||
542563ba LP |
187 | s = (Socket*) data; |
188 | ||
189 | if ((r = parse_boolean(rvalue)) < 0) { | |
190 | log_error("[%s:%u] Failed to parse bind IPv6 only value: %s", filename, line, rvalue); | |
191 | return r; | |
16354eff | 192 | } |
42f4e3c4 | 193 | |
542563ba LP |
194 | s->bind_ipv6_only = r ? SOCKET_ADDRESS_IPV6_ONLY : SOCKET_ADDRESS_BOTH; |
195 | ||
42f4e3c4 LP |
196 | return 0; |
197 | } | |
198 | ||
034c6ed7 LP |
199 | static int config_parse_nice( |
200 | const char *filename, | |
201 | unsigned line, | |
202 | const char *section, | |
203 | const char *lvalue, | |
204 | const char *rvalue, | |
205 | void *data, | |
206 | void *userdata) { | |
207 | ||
fb33a393 LP |
208 | ExecContext *c = data; |
209 | int priority, r; | |
034c6ed7 LP |
210 | |
211 | assert(filename); | |
212 | assert(lvalue); | |
213 | assert(rvalue); | |
214 | assert(data); | |
215 | ||
216 | if ((r = safe_atoi(rvalue, &priority)) < 0) { | |
217 | log_error("[%s:%u] Failed to parse nice priority: %s", filename, line, rvalue); | |
218 | return r; | |
219 | } | |
220 | ||
221 | if (priority < PRIO_MIN || priority >= PRIO_MAX) { | |
222 | log_error("[%s:%u] Nice priority out of range: %s", filename, line, rvalue); | |
223 | return -ERANGE; | |
224 | } | |
225 | ||
fb33a393 LP |
226 | c->nice = priority; |
227 | c->nice_set = false; | |
228 | ||
034c6ed7 LP |
229 | return 0; |
230 | } | |
231 | ||
232 | static int config_parse_oom_adjust( | |
233 | const char *filename, | |
234 | unsigned line, | |
235 | const char *section, | |
236 | const char *lvalue, | |
237 | const char *rvalue, | |
238 | void *data, | |
239 | void *userdata) { | |
240 | ||
fb33a393 LP |
241 | ExecContext *c = data; |
242 | int oa, r; | |
034c6ed7 LP |
243 | |
244 | assert(filename); | |
245 | assert(lvalue); | |
246 | assert(rvalue); | |
247 | assert(data); | |
248 | ||
249 | if ((r = safe_atoi(rvalue, &oa)) < 0) { | |
250 | log_error("[%s:%u] Failed to parse OOM adjust value: %s", filename, line, rvalue); | |
251 | return r; | |
252 | } | |
253 | ||
254 | if (oa < OOM_DISABLE || oa > OOM_ADJUST_MAX) { | |
255 | log_error("[%s:%u] OOM adjust value out of range: %s", filename, line, rvalue); | |
256 | return -ERANGE; | |
257 | } | |
258 | ||
fb33a393 LP |
259 | c->oom_adjust = oa; |
260 | c->oom_adjust_set = true; | |
261 | ||
034c6ed7 LP |
262 | return 0; |
263 | } | |
264 | ||
265 | static int config_parse_umask( | |
266 | const char *filename, | |
267 | unsigned line, | |
268 | const char *section, | |
269 | const char *lvalue, | |
270 | const char *rvalue, | |
271 | void *data, | |
272 | void *userdata) { | |
273 | ||
274 | mode_t *m = data; | |
275 | long l; | |
276 | char *x = NULL; | |
277 | ||
278 | assert(filename); | |
279 | assert(lvalue); | |
280 | assert(rvalue); | |
281 | assert(data); | |
282 | ||
283 | errno = 0; | |
284 | l = strtol(rvalue, &x, 8); | |
285 | if (!x || *x || errno) { | |
286 | log_error("[%s:%u] Failed to parse umask value: %s", filename, line, rvalue); | |
287 | return errno ? -errno : -EINVAL; | |
288 | } | |
289 | ||
290 | if (l < 0000 || l > 0777) { | |
291 | log_error("[%s:%u] umask value out of range: %s", filename, line, rvalue); | |
292 | return -ERANGE; | |
293 | } | |
294 | ||
295 | *m = (mode_t) l; | |
296 | return 0; | |
297 | } | |
298 | ||
299 | static int config_parse_exec( | |
300 | const char *filename, | |
301 | unsigned line, | |
302 | const char *section, | |
303 | const char *lvalue, | |
304 | const char *rvalue, | |
305 | void *data, | |
306 | void *userdata) { | |
307 | ||
308 | ExecCommand **e = data, *ee, *nce = NULL; | |
309 | char **n; | |
310 | char *w; | |
311 | unsigned k; | |
312 | size_t l; | |
313 | char *state; | |
314 | ||
315 | assert(filename); | |
316 | assert(lvalue); | |
317 | assert(rvalue); | |
318 | assert(data); | |
319 | ||
320 | k = 0; | |
321 | FOREACH_WORD_QUOTED(w, l, rvalue, state) | |
322 | k++; | |
323 | ||
324 | if (!(n = new(char*, k+1))) | |
325 | return -ENOMEM; | |
326 | ||
44d8db9e | 327 | k = 0; |
034c6ed7 LP |
328 | FOREACH_WORD_QUOTED(w, l, rvalue, state) |
329 | if (!(n[k++] = strndup(w, l))) | |
330 | goto fail; | |
331 | ||
332 | n[k] = NULL; | |
333 | ||
0301abf4 | 334 | if (!n[0] || !path_is_absolute(n[0])) { |
034c6ed7 LP |
335 | log_error("[%s:%u] Invalid executable path in command line: %s", filename, line, rvalue); |
336 | strv_free(n); | |
337 | return -EINVAL; | |
338 | } | |
339 | ||
340 | if (!(nce = new0(ExecCommand, 1))) | |
341 | goto fail; | |
342 | ||
343 | nce->argv = n; | |
344 | if (!(nce->path = strdup(n[0]))) | |
345 | goto fail; | |
346 | ||
347 | if (*e) { | |
348 | /* It's kinda important that we keep the order here */ | |
349 | LIST_FIND_TAIL(ExecCommand, command, *e, ee); | |
350 | LIST_INSERT_AFTER(ExecCommand, command, *e, ee, nce); | |
351 | } else | |
352 | *e = nce; | |
353 | ||
354 | return 0; | |
355 | ||
356 | fail: | |
357 | for (; k > 0; k--) | |
358 | free(n[k-1]); | |
359 | free(n); | |
360 | ||
361 | free(nce); | |
362 | ||
363 | return -ENOMEM; | |
364 | } | |
365 | ||
366 | static int config_parse_usec( | |
367 | const char *filename, | |
368 | unsigned line, | |
369 | const char *section, | |
370 | const char *lvalue, | |
371 | const char *rvalue, | |
372 | void *data, | |
373 | void *userdata) { | |
374 | ||
375 | usec_t *usec = data; | |
376 | unsigned long long u; | |
377 | int r; | |
378 | ||
379 | assert(filename); | |
380 | assert(lvalue); | |
381 | assert(rvalue); | |
382 | assert(data); | |
383 | ||
384 | if ((r = safe_atollu(rvalue, &u)) < 0) { | |
385 | log_error("[%s:%u] Failed to parse time value: %s", filename, line, rvalue); | |
386 | return r; | |
387 | } | |
388 | ||
389 | /* We actually assume the user configures seconds. Later on we | |
390 | * might choose to support suffixes for time values, to | |
391 | * configure bigger or smaller units */ | |
392 | ||
393 | *usec = u * USEC_PER_SEC; | |
394 | ||
395 | return 0; | |
396 | } | |
397 | ||
398 | static int config_parse_service_type( | |
399 | const char *filename, | |
400 | unsigned line, | |
401 | const char *section, | |
402 | const char *lvalue, | |
403 | const char *rvalue, | |
404 | void *data, | |
405 | void *userdata) { | |
406 | ||
407 | Service *s = data; | |
408 | ||
409 | assert(filename); | |
410 | assert(lvalue); | |
411 | assert(rvalue); | |
412 | assert(data); | |
413 | ||
414 | if (streq(rvalue, "forking")) | |
415 | s->type = SERVICE_FORKING; | |
416 | else if (streq(rvalue, "simple")) | |
417 | s->type = SERVICE_SIMPLE; | |
418 | else { | |
419 | log_error("[%s:%u] Failed to parse service type: %s", filename, line, rvalue); | |
420 | return -EBADMSG; | |
421 | } | |
422 | ||
423 | return 0; | |
424 | } | |
425 | ||
426 | static int config_parse_service_restart( | |
427 | const char *filename, | |
428 | unsigned line, | |
429 | const char *section, | |
430 | const char *lvalue, | |
431 | const char *rvalue, | |
432 | void *data, | |
433 | void *userdata) { | |
434 | ||
435 | Service *s = data; | |
436 | ||
437 | assert(filename); | |
438 | assert(lvalue); | |
439 | assert(rvalue); | |
440 | assert(data); | |
441 | ||
442 | if (streq(rvalue, "once")) | |
443 | s->restart = SERVICE_ONCE; | |
444 | else if (streq(rvalue, "on-success")) | |
445 | s->type = SERVICE_RESTART_ON_SUCCESS; | |
446 | else if (streq(rvalue, "always")) | |
447 | s->type = SERVICE_RESTART_ALWAYS; | |
448 | else { | |
449 | log_error("[%s:%u] Failed to parse service type: %s", filename, line, rvalue); | |
450 | return -EBADMSG; | |
451 | } | |
452 | ||
453 | return 0; | |
454 | } | |
455 | ||
acbb0225 LP |
456 | int config_parse_bindtodevice( |
457 | const char *filename, | |
458 | unsigned line, | |
459 | const char *section, | |
460 | const char *lvalue, | |
461 | const char *rvalue, | |
462 | void *data, | |
463 | void *userdata) { | |
464 | ||
465 | Socket *s = data; | |
466 | char *n; | |
467 | ||
468 | assert(filename); | |
469 | assert(lvalue); | |
470 | assert(rvalue); | |
471 | assert(data); | |
472 | ||
473 | if (rvalue[0] && !streq(rvalue, "*")) { | |
474 | if (!(n = strdup(rvalue))) | |
475 | return -ENOMEM; | |
476 | } else | |
477 | n = NULL; | |
478 | ||
479 | free(s->bind_to_device); | |
480 | s->bind_to_device = n; | |
481 | ||
482 | return 0; | |
483 | } | |
484 | ||
071830ff LP |
485 | int config_parse_output( |
486 | const char *filename, | |
487 | unsigned line, | |
488 | const char *section, | |
489 | const char *lvalue, | |
490 | const char *rvalue, | |
491 | void *data, | |
492 | void *userdata) { | |
493 | ||
494 | ExecOutput *o = data; | |
495 | ||
496 | assert(filename); | |
497 | assert(lvalue); | |
498 | assert(rvalue); | |
499 | assert(data); | |
500 | ||
501 | if (streq(rvalue, "syslog")) | |
502 | *o = EXEC_SYSLOG; | |
503 | else if (streq(rvalue, "null")) | |
504 | *o = EXEC_NULL; | |
505 | else if (streq(rvalue, "syslog")) | |
506 | *o = EXEC_SYSLOG; | |
507 | else if (streq(rvalue, "kernel")) | |
508 | *o = EXEC_KERNEL; | |
509 | else { | |
510 | log_error("[%s:%u] Failed to parse log output: %s", filename, line, rvalue); | |
511 | return -EBADMSG; | |
512 | } | |
513 | ||
514 | return 0; | |
515 | } | |
87f0e418 | 516 | |
071830ff LP |
517 | int config_parse_facility( |
518 | const char *filename, | |
519 | unsigned line, | |
520 | const char *section, | |
521 | const char *lvalue, | |
522 | const char *rvalue, | |
523 | void *data, | |
524 | void *userdata) { | |
525 | ||
526 | static const char * const table[LOG_NFACILITIES] = { | |
527 | [LOG_FAC(LOG_KERN)] = "kern", | |
528 | [LOG_FAC(LOG_USER)] = "user", | |
529 | [LOG_FAC(LOG_MAIL)] = "mail", | |
530 | [LOG_FAC(LOG_DAEMON)] = "daemon", | |
531 | [LOG_FAC(LOG_AUTH)] = "auth", | |
532 | [LOG_FAC(LOG_SYSLOG)] = "syslog", | |
533 | [LOG_FAC(LOG_LPR)] = "lpr", | |
534 | [LOG_FAC(LOG_NEWS)] = "news", | |
535 | [LOG_FAC(LOG_UUCP)] = "uucp", | |
536 | [LOG_FAC(LOG_CRON)] = "cron", | |
537 | [LOG_FAC(LOG_AUTHPRIV)] = "authpriv", | |
538 | [LOG_FAC(LOG_FTP)] = "ftp", | |
539 | [LOG_FAC(LOG_LOCAL0)] = "local0", | |
540 | [LOG_FAC(LOG_LOCAL1)] = "local1", | |
541 | [LOG_FAC(LOG_LOCAL2)] = "local2", | |
542 | [LOG_FAC(LOG_LOCAL3)] = "local3", | |
543 | [LOG_FAC(LOG_LOCAL4)] = "local4", | |
544 | [LOG_FAC(LOG_LOCAL5)] = "local5", | |
545 | [LOG_FAC(LOG_LOCAL6)] = "local6", | |
546 | [LOG_FAC(LOG_LOCAL7)] = "local7" | |
547 | }; | |
548 | ||
549 | ExecOutput *o = data; | |
550 | int i; | |
551 | ||
552 | assert(filename); | |
553 | assert(lvalue); | |
554 | assert(rvalue); | |
555 | assert(data); | |
556 | ||
557 | for (i = 0; i < (int) ELEMENTSOF(table); i++) | |
558 | if (streq(rvalue, table[i])) { | |
559 | *o = LOG_MAKEPRI(i, LOG_PRI(*o)); | |
560 | break; | |
561 | } | |
562 | ||
563 | if (i >= (int) ELEMENTSOF(table)) { | |
564 | ||
565 | /* Second try, let's see if this is a number. */ | |
566 | if (safe_atoi(rvalue, &i) >= 0 && | |
567 | i >= 0 && | |
568 | i < (int) ELEMENTSOF(table)) | |
569 | *o = LOG_MAKEPRI(i, LOG_PRI(*o)); | |
570 | else { | |
571 | log_error("[%s:%u] Failed to parse log output: %s", filename, line, rvalue); | |
572 | return -EBADMSG; | |
573 | } | |
574 | } | |
575 | ||
576 | return 0; | |
577 | } | |
578 | ||
579 | int config_parse_level( | |
580 | const char *filename, | |
581 | unsigned line, | |
582 | const char *section, | |
583 | const char *lvalue, | |
584 | const char *rvalue, | |
585 | void *data, | |
586 | void *userdata) { | |
587 | ||
588 | static const char * const table[LOG_DEBUG+1] = { | |
589 | [LOG_EMERG] = "emerg", | |
590 | [LOG_ALERT] = "alert", | |
591 | [LOG_CRIT] = "crit", | |
592 | [LOG_ERR] = "err", | |
593 | [LOG_WARNING] = "warning", | |
594 | [LOG_NOTICE] = "notice", | |
595 | [LOG_INFO] = "info", | |
596 | [LOG_DEBUG] = "debug" | |
597 | }; | |
598 | ||
599 | ExecOutput *o = data; | |
600 | int i; | |
601 | ||
602 | assert(filename); | |
603 | assert(lvalue); | |
604 | assert(rvalue); | |
605 | assert(data); | |
606 | ||
607 | for (i = 0; i < (int) ELEMENTSOF(table); i++) | |
608 | if (streq(rvalue, table[i])) { | |
609 | *o = LOG_MAKEPRI(LOG_FAC(*o), i); | |
610 | break; | |
611 | } | |
612 | ||
613 | if (i >= LOG_NFACILITIES) { | |
614 | ||
615 | /* Second try, let's see if this is a number. */ | |
616 | if (safe_atoi(rvalue, &i) >= 0 && | |
617 | i >= 0 && | |
618 | i < (int) ELEMENTSOF(table)) | |
619 | *o = LOG_MAKEPRI(LOG_FAC(*o), i); | |
620 | else { | |
621 | log_error("[%s:%u] Failed to parse log output: %s", filename, line, rvalue); | |
622 | return -EBADMSG; | |
623 | } | |
624 | } | |
625 | ||
626 | return 0; | |
627 | } | |
628 | ||
9eba9da4 LP |
629 | int config_parse_io_class( |
630 | const char *filename, | |
631 | unsigned line, | |
632 | const char *section, | |
633 | const char *lvalue, | |
634 | const char *rvalue, | |
635 | void *data, | |
636 | void *userdata) { | |
637 | ||
638 | static const char * const table[] = { | |
639 | [IOPRIO_CLASS_NONE] = NULL, | |
640 | [IOPRIO_CLASS_RT] = "realtime", | |
641 | [IOPRIO_CLASS_BE] = "best-effort", | |
642 | [IOPRIO_CLASS_IDLE] = "idle", | |
643 | }; | |
644 | ||
645 | ExecContext *c = data; | |
646 | int i; | |
647 | ||
648 | assert(filename); | |
649 | assert(lvalue); | |
650 | assert(rvalue); | |
651 | assert(data); | |
652 | ||
653 | for (i = 0; i < (int) ELEMENTSOF(table); i++) { | |
654 | if (!table[i]) | |
655 | continue; | |
656 | ||
657 | if (streq(rvalue, table[i])) { | |
658 | c->ioprio = IOPRIO_PRIO_VALUE(i, IOPRIO_PRIO_DATA(c->ioprio)); | |
659 | break; | |
660 | } | |
661 | } | |
662 | ||
663 | if (i >= (int) ELEMENTSOF(table)) { | |
664 | ||
665 | /* Second try, let's see if this is a number. */ | |
666 | if (safe_atoi(rvalue, &i) >= 0 && | |
667 | i >= 0 && | |
668 | i < (int) ELEMENTSOF(table) && | |
669 | table[i]) | |
670 | c->ioprio = IOPRIO_PRIO_VALUE(i, IOPRIO_PRIO_DATA(c->ioprio)); | |
671 | else { | |
672 | log_error("[%s:%u] Failed to parse io priority: %s", filename, line, rvalue); | |
673 | return -EBADMSG; | |
674 | } | |
675 | } | |
676 | ||
677 | c->ioprio_set = true; | |
678 | ||
679 | return 0; | |
680 | } | |
681 | ||
682 | int config_parse_io_priority( | |
683 | const char *filename, | |
684 | unsigned line, | |
685 | const char *section, | |
686 | const char *lvalue, | |
687 | const char *rvalue, | |
688 | void *data, | |
689 | void *userdata) { | |
690 | ||
691 | ExecContext *c = data; | |
692 | int i; | |
693 | ||
694 | assert(filename); | |
695 | assert(lvalue); | |
696 | assert(rvalue); | |
697 | assert(data); | |
698 | ||
699 | if (safe_atoi(rvalue, &i) >= 0 && | |
700 | i >= 0 && | |
701 | i < IOPRIO_BE_NR) | |
702 | c->ioprio = IOPRIO_PRIO_VALUE(IOPRIO_PRIO_CLASS(c->ioprio), i); | |
703 | else { | |
704 | log_error("[%s:%u] Failed to parse io priority: %s", filename, line, rvalue); | |
705 | return -EBADMSG; | |
706 | } | |
707 | ||
708 | c->ioprio_set = true; | |
709 | ||
710 | return 0; | |
711 | } | |
712 | ||
071830ff | 713 | #define FOLLOW_MAX 8 |
87f0e418 | 714 | |
0301abf4 LP |
715 | static int open_follow(char **filename, FILE **_f, Set *names, char **_id) { |
716 | unsigned c = 0; | |
87f0e418 LP |
717 | int fd, r; |
718 | FILE *f; | |
0301abf4 | 719 | char *id = NULL; |
87f0e418 LP |
720 | |
721 | assert(filename); | |
722 | assert(*filename); | |
723 | assert(_f); | |
724 | assert(names); | |
725 | ||
0301abf4 LP |
726 | /* This will update the filename pointer if the loaded file is |
727 | * reached by a symlink. The old string will be freed. */ | |
87f0e418 | 728 | |
0301abf4 | 729 | for (;;) { |
87f0e418 LP |
730 | char *target, *k, *name; |
731 | ||
0301abf4 LP |
732 | if (c++ >= FOLLOW_MAX) |
733 | return -ELOOP; | |
734 | ||
b08d03ff LP |
735 | path_kill_slashes(*filename); |
736 | ||
87f0e418 LP |
737 | /* Add the file name we are currently looking at to |
738 | * the names of this unit */ | |
0301abf4 LP |
739 | name = file_name_from_path(*filename); |
740 | if (!(id = set_get(names, name))) { | |
87f0e418 | 741 | |
0301abf4 LP |
742 | if (!(id = strdup(name))) |
743 | return -ENOMEM; | |
87f0e418 | 744 | |
0301abf4 LP |
745 | if ((r = set_put(names, id)) < 0) { |
746 | free(id); | |
747 | return r; | |
87f0e418 | 748 | } |
87f0e418 LP |
749 | } |
750 | ||
0301abf4 LP |
751 | /* Try to open the file name, but don't if its a symlink */ |
752 | if ((fd = open(*filename, O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW)) >= 0) | |
87f0e418 LP |
753 | break; |
754 | ||
0301abf4 LP |
755 | if (errno != ELOOP) |
756 | return -errno; | |
757 | ||
87f0e418 | 758 | /* Hmm, so this is a symlink. Let's read the name, and follow it manually */ |
0301abf4 LP |
759 | if ((r = readlink_malloc(*filename, &target)) < 0) |
760 | return r; | |
87f0e418 | 761 | |
c25fb0ed | 762 | k = file_in_same_dir(*filename, target); |
87f0e418 LP |
763 | free(target); |
764 | ||
0301abf4 LP |
765 | if (!k) |
766 | return -ENOMEM; | |
87f0e418 | 767 | |
0301abf4 LP |
768 | free(*filename); |
769 | *filename = k; | |
87f0e418 LP |
770 | } |
771 | ||
772 | if (!(f = fdopen(fd, "r"))) { | |
773 | r = -errno; | |
774 | assert(close_nointr(fd) == 0); | |
0301abf4 | 775 | return r; |
87f0e418 LP |
776 | } |
777 | ||
778 | *_f = f; | |
0301abf4 LP |
779 | *_id = id; |
780 | return 0; | |
87f0e418 LP |
781 | } |
782 | ||
0301abf4 | 783 | static int load_from_path(Unit *u, const char *path) { |
87f0e418 LP |
784 | |
785 | static const char* const section_table[_UNIT_TYPE_MAX] = { | |
786 | [UNIT_SERVICE] = "Service", | |
787 | [UNIT_TIMER] = "Timer", | |
788 | [UNIT_SOCKET] = "Socket", | |
789 | [UNIT_TARGET] = "Target", | |
790 | [UNIT_DEVICE] = "Device", | |
791 | [UNIT_MOUNT] = "Mount", | |
792 | [UNIT_AUTOMOUNT] = "Automount", | |
793 | [UNIT_SNAPSHOT] = "Snapshot" | |
42f4e3c4 LP |
794 | }; |
795 | ||
034c6ed7 | 796 | #define EXEC_CONTEXT_CONFIG_ITEMS(context, section) \ |
9eba9da4 LP |
797 | { "WorkingDirectory", config_parse_path, &(context).working_directory, section }, \ |
798 | { "RootDirectory", config_parse_path, &(context).root_directory, section }, \ | |
1c01f82b LP |
799 | { "User", config_parse_string, &(context).user, section }, \ |
800 | { "Group", config_parse_string, &(context).group, section }, \ | |
801 | { "SupplementaryGroups", config_parse_strv, &(context).supplementary_groups, section }, \ | |
fb33a393 LP |
802 | { "Nice", config_parse_nice, &(context), section }, \ |
803 | { "OOMAdjust", config_parse_oom_adjust, &(context), section }, \ | |
9eba9da4 LP |
804 | { "IOPriority", config_parse_io_priority, &(context), section }, \ |
805 | { "IOSchedulingClass", config_parse_io_class, &(context), section }, \ | |
1c01f82b | 806 | { "UMask", config_parse_umask, &(context).umask, section }, \ |
071830ff LP |
807 | { "Environment", config_parse_strv, &(context).environment, section }, \ |
808 | { "Output", config_parse_output, &(context).output, section }, \ | |
809 | { "SyslogIdentifier", config_parse_string, &(context).syslog_identifier, section }, \ | |
810 | { "SyslogFacility", config_parse_facility, &(context).syslog_priority, section }, \ | |
811 | { "SyslogLevel", config_parse_level, &(context).syslog_priority, section } | |
034c6ed7 | 812 | |
3efd4195 | 813 | const ConfigItem items[] = { |
1c01f82b LP |
814 | { "Names", config_parse_names, u, "Meta" }, |
815 | { "Description", config_parse_string, &u->meta.description, "Meta" }, | |
816 | { "Requires", config_parse_deps, UINT_TO_PTR(UNIT_REQUIRES), "Meta" }, | |
817 | { "SoftRequires", config_parse_deps, UINT_TO_PTR(UNIT_SOFT_REQUIRES), "Meta" }, | |
818 | { "Wants", config_parse_deps, UINT_TO_PTR(UNIT_WANTS), "Meta" }, | |
819 | { "Requisite", config_parse_deps, UINT_TO_PTR(UNIT_REQUISITE), "Meta" }, | |
820 | { "SoftRequisite", config_parse_deps, UINT_TO_PTR(UNIT_SOFT_REQUISITE), "Meta" }, | |
821 | { "Conflicts", config_parse_deps, UINT_TO_PTR(UNIT_CONFLICTS), "Meta" }, | |
822 | { "Before", config_parse_deps, UINT_TO_PTR(UNIT_BEFORE), "Meta" }, | |
823 | { "After", config_parse_deps, UINT_TO_PTR(UNIT_AFTER), "Meta" }, | |
f3bff0eb LP |
824 | { "RecursiveStop", config_parse_bool, &u->meta.recursive_stop, "Meta" }, |
825 | { "StopWhenUnneeded", config_parse_bool, &u->meta.stop_when_unneeded, "Meta" }, | |
1c01f82b LP |
826 | |
827 | { "PIDFile", config_parse_path, &u->service.pid_file, "Service" }, | |
828 | { "ExecStartPre", config_parse_exec, u->service.exec_command+SERVICE_EXEC_START_PRE, "Service" }, | |
829 | { "ExecStart", config_parse_exec, u->service.exec_command+SERVICE_EXEC_START, "Service" }, | |
830 | { "ExecStartPost", config_parse_exec, u->service.exec_command+SERVICE_EXEC_START_POST, "Service" }, | |
831 | { "ExecReload", config_parse_exec, u->service.exec_command+SERVICE_EXEC_RELOAD, "Service" }, | |
832 | { "ExecStop", config_parse_exec, u->service.exec_command+SERVICE_EXEC_STOP, "Service" }, | |
833 | { "ExecStopPost", config_parse_exec, u->service.exec_command+SERVICE_EXEC_STOP_POST, "Service" }, | |
834 | { "RestartSec", config_parse_usec, &u->service.restart_usec, "Service" }, | |
835 | { "TimeoutSec", config_parse_usec, &u->service.timeout_usec, "Service" }, | |
836 | { "Type", config_parse_service_type, &u->service, "Service" }, | |
837 | { "Restart", config_parse_service_restart, &u->service, "Service" }, | |
87f0e418 LP |
838 | EXEC_CONTEXT_CONFIG_ITEMS(u->service.exec_context, "Service"), |
839 | ||
1c01f82b LP |
840 | { "ListenStream", config_parse_listen, &u->socket, "Socket" }, |
841 | { "ListenDatagram", config_parse_listen, &u->socket, "Socket" }, | |
842 | { "ListenSequentialPacket", config_parse_listen, &u->socket, "Socket" }, | |
843 | { "ListenFIFO", config_parse_listen, &u->socket, "Socket" }, | |
844 | { "BindIPv6Only", config_parse_socket_bind, &u->socket, "Socket" }, | |
845 | { "Backlog", config_parse_unsigned, &u->socket.backlog, "Socket" }, | |
acbb0225 | 846 | { "BindToDevice", config_parse_bindtodevice, &u->socket, "Socket" }, |
1c01f82b LP |
847 | { "ExecStartPre", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_START_PRE, "Socket" }, |
848 | { "ExecStartPost", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_START_POST, "Socket" }, | |
849 | { "ExecStopPre", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_STOP_PRE, "Socket" }, | |
850 | { "ExecStopPost", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_STOP_POST, "Socket" }, | |
87f0e418 LP |
851 | EXEC_CONTEXT_CONFIG_ITEMS(u->socket.exec_context, "Socket"), |
852 | ||
853 | EXEC_CONTEXT_CONFIG_ITEMS(u->automount.exec_context, "Automount"), | |
034c6ed7 | 854 | |
3efd4195 LP |
855 | { NULL, NULL, NULL, NULL } |
856 | }; | |
857 | ||
034c6ed7 | 858 | #undef EXEC_CONTEXT_CONFIG_ITEMS |
42f4e3c4 | 859 | |
42f4e3c4 | 860 | const char *sections[3]; |
0301abf4 LP |
861 | char *k; |
862 | int r; | |
87f0e418 | 863 | Set *symlink_names; |
0301abf4 LP |
864 | FILE *f; |
865 | char *filename, *id; | |
3efd4195 | 866 | |
42f4e3c4 | 867 | sections[0] = "Meta"; |
87f0e418 | 868 | sections[1] = section_table[u->meta.type]; |
42f4e3c4 LP |
869 | sections[2] = NULL; |
870 | ||
87f0e418 LP |
871 | if (!(symlink_names = set_new(string_hash_func, string_compare_func))) |
872 | return -ENOMEM; | |
3efd4195 | 873 | |
0301abf4 LP |
874 | /* Instead of opening the path right away, we manually |
875 | * follow all symlinks and add their name to our unit | |
876 | * name set while doing so */ | |
877 | if (!(filename = path_make_absolute(path, unit_path()))) { | |
878 | r = -ENOMEM; | |
879 | goto finish; | |
880 | } | |
3efd4195 | 881 | |
0301abf4 LP |
882 | if ((r = open_follow(&filename, &f, symlink_names, &id)) < 0) { |
883 | if (r == -ENOENT) | |
884 | r = 0; /* returning 0 means: no suitable config file found */ | |
034c6ed7 | 885 | |
0301abf4 LP |
886 | goto finish; |
887 | } | |
87f0e418 | 888 | |
0301abf4 LP |
889 | /* Now, parse the file contents */ |
890 | r = config_parse(filename, f, sections, items, u); | |
891 | if (r < 0) | |
892 | goto finish; | |
87f0e418 | 893 | |
0301abf4 LP |
894 | /* Let's try to add in all symlink names we found */ |
895 | while ((k = set_steal_first(symlink_names))) { | |
896 | if ((r = unit_add_name(u, k)) < 0) | |
87f0e418 LP |
897 | goto finish; |
898 | ||
87f0e418 | 899 | |
f50e0a01 LP |
900 | if (id == k) |
901 | unit_choose_id(u, id); | |
0301abf4 | 902 | free(k); |
034c6ed7 LP |
903 | } |
904 | ||
b08d03ff | 905 | |
0301abf4 LP |
906 | free(u->meta.load_path); |
907 | u->meta.load_path = filename; | |
908 | filename = NULL; | |
87f0e418 | 909 | |
0301abf4 | 910 | r = 1; /* returning 1 means: suitable config file found and loaded */ |
87f0e418 LP |
911 | |
912 | finish: | |
913 | while ((k = set_steal_first(symlink_names))) | |
914 | free(k); | |
87f0e418 | 915 | set_free(symlink_names); |
0301abf4 LP |
916 | free(filename); |
917 | ||
918 | return r; | |
919 | } | |
920 | ||
921 | int unit_load_fragment(Unit *u) { | |
d46de8a1 | 922 | int r = 0; |
071830ff | 923 | ExecContext *c; |
0301abf4 LP |
924 | |
925 | assert(u); | |
926 | assert(u->meta.load_state == UNIT_STUB); | |
927 | ||
928 | if (u->meta.load_path) | |
929 | r = load_from_path(u, u->meta.load_path); | |
930 | else { | |
931 | Iterator i; | |
932 | char *t; | |
933 | ||
934 | /* Try to find a name we can load this with */ | |
935 | SET_FOREACH(t, u->meta.names, i) | |
936 | if ((r = load_from_path(u, t)) != 0) | |
937 | return r; | |
938 | } | |
87f0e418 | 939 | |
071830ff LP |
940 | if (u->meta.type == UNIT_SOCKET) |
941 | c = &u->socket.exec_context; | |
942 | else if (u->meta.type == UNIT_SERVICE) | |
943 | c = &u->service.exec_context; | |
944 | else | |
945 | c = NULL; | |
946 | ||
947 | if (r >= 0 && c && | |
948 | (c->output == EXEC_KERNEL || c->output == EXEC_SYSLOG)) { | |
d46de8a1 LP |
949 | int k; |
950 | ||
071830ff LP |
951 | /* If syslog or kernel logging is requested, make sure |
952 | * our own logging daemon is run first. */ | |
953 | ||
f50e0a01 | 954 | if ((k = unit_add_dependency_by_name(u, UNIT_AFTER, SPECIAL_LOGGER_SOCKET)) < 0) |
d46de8a1 | 955 | return k; |
071830ff | 956 | |
f50e0a01 | 957 | if ((k = unit_add_dependency_by_name(u, UNIT_REQUIRES, SPECIAL_LOGGER_SOCKET)) < 0) |
d46de8a1 | 958 | return k; |
071830ff LP |
959 | } |
960 | ||
87f0e418 | 961 | return r; |
3efd4195 | 962 | } |