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1 | /*-*- Mode: C; c-basic-offset: 8 -*-*/ | |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2010 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
9 | under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
22 | #include <linux/oom.h> | |
23 | #include <assert.h> | |
24 | #include <errno.h> | |
25 | #include <string.h> | |
26 | #include <unistd.h> | |
27 | #include <fcntl.h> | |
28 | #include <sched.h> | |
29 | #include <sys/prctl.h> | |
30 | #include <sys/mount.h> | |
31 | #include <linux/fs.h> | |
32 | ||
33 | #include "unit.h" | |
34 | #include "strv.h" | |
35 | #include "conf-parser.h" | |
36 | #include "load-fragment.h" | |
37 | #include "log.h" | |
38 | #include "ioprio.h" | |
39 | #include "securebits.h" | |
40 | #include "missing.h" | |
41 | #include "unit-name.h" | |
42 | ||
43 | #define COMMENTS "#;\n" | |
44 | #define LINE_MAX 4096 | |
45 | ||
46 | #define DEFINE_CONFIG_PARSE_ENUM(function,name,type,msg) \ | |
47 | static int function( \ | |
48 | const char *filename, \ | |
49 | unsigned line, \ | |
50 | const char *section, \ | |
51 | const char *lvalue, \ | |
52 | const char *rvalue, \ | |
53 | void *data, \ | |
54 | void *userdata) { \ | |
55 | \ | |
56 | type *i = data, x; \ | |
57 | \ | |
58 | assert(filename); \ | |
59 | assert(lvalue); \ | |
60 | assert(rvalue); \ | |
61 | assert(data); \ | |
62 | \ | |
63 | if ((x = name##_from_string(rvalue)) < 0) { \ | |
64 | log_error("[%s:%u] " msg ": %s", filename, line, rvalue); \ | |
65 | return -EBADMSG; \ | |
66 | } \ | |
67 | \ | |
68 | *i = x; \ | |
69 | \ | |
70 | return 0; \ | |
71 | } | |
72 | ||
73 | static int config_parse_deps( | |
74 | const char *filename, | |
75 | unsigned line, | |
76 | const char *section, | |
77 | const char *lvalue, | |
78 | const char *rvalue, | |
79 | void *data, | |
80 | void *userdata) { | |
81 | ||
82 | UnitDependency d = PTR_TO_UINT(data); | |
83 | Unit *u = userdata; | |
84 | char *w; | |
85 | size_t l; | |
86 | char *state; | |
87 | ||
88 | assert(filename); | |
89 | assert(lvalue); | |
90 | assert(rvalue); | |
91 | ||
92 | FOREACH_WORD(w, l, rvalue, state) { | |
93 | char *t, *k; | |
94 | int r; | |
95 | ||
96 | if (!(t = strndup(w, l))) | |
97 | return -ENOMEM; | |
98 | ||
99 | k = unit_name_printf(u, t); | |
100 | free(t); | |
101 | ||
102 | if (!k) | |
103 | return -ENOMEM; | |
104 | ||
105 | r = unit_add_dependency_by_name(u, d, k, NULL, true); | |
106 | free(k); | |
107 | ||
108 | if (r < 0) | |
109 | return r; | |
110 | } | |
111 | ||
112 | return 0; | |
113 | } | |
114 | ||
115 | static int config_parse_names( | |
116 | const char *filename, | |
117 | unsigned line, | |
118 | const char *section, | |
119 | const char *lvalue, | |
120 | const char *rvalue, | |
121 | void *data, | |
122 | void *userdata) { | |
123 | ||
124 | Unit *u = userdata; | |
125 | char *w; | |
126 | size_t l; | |
127 | char *state; | |
128 | ||
129 | assert(filename); | |
130 | assert(lvalue); | |
131 | assert(rvalue); | |
132 | assert(data); | |
133 | ||
134 | FOREACH_WORD(w, l, rvalue, state) { | |
135 | char *t, *k; | |
136 | int r; | |
137 | ||
138 | if (!(t = strndup(w, l))) | |
139 | return -ENOMEM; | |
140 | ||
141 | k = unit_name_printf(u, t); | |
142 | free(t); | |
143 | ||
144 | if (!k) | |
145 | return -ENOMEM; | |
146 | ||
147 | r = unit_merge_by_name(u, k); | |
148 | free(k); | |
149 | ||
150 | if (r < 0) | |
151 | return r; | |
152 | } | |
153 | ||
154 | return 0; | |
155 | } | |
156 | ||
157 | static int config_parse_string_printf( | |
158 | const char *filename, | |
159 | unsigned line, | |
160 | const char *section, | |
161 | const char *lvalue, | |
162 | const char *rvalue, | |
163 | void *data, | |
164 | void *userdata) { | |
165 | ||
166 | Unit *u = userdata; | |
167 | char **s = data; | |
168 | char *k; | |
169 | ||
170 | assert(filename); | |
171 | assert(lvalue); | |
172 | assert(rvalue); | |
173 | assert(s); | |
174 | assert(u); | |
175 | ||
176 | if (!(k = unit_full_printf(u, rvalue))) | |
177 | return -ENOMEM; | |
178 | ||
179 | free(*s); | |
180 | if (*k) | |
181 | *s = k; | |
182 | else { | |
183 | free(k); | |
184 | *s = NULL; | |
185 | } | |
186 | ||
187 | return 0; | |
188 | } | |
189 | ||
190 | static int config_parse_listen( | |
191 | const char *filename, | |
192 | unsigned line, | |
193 | const char *section, | |
194 | const char *lvalue, | |
195 | const char *rvalue, | |
196 | void *data, | |
197 | void *userdata) { | |
198 | ||
199 | int r; | |
200 | SocketPort *p; | |
201 | Socket *s; | |
202 | ||
203 | assert(filename); | |
204 | assert(lvalue); | |
205 | assert(rvalue); | |
206 | assert(data); | |
207 | ||
208 | s = (Socket*) data; | |
209 | ||
210 | if (!(p = new0(SocketPort, 1))) | |
211 | return -ENOMEM; | |
212 | ||
213 | if (streq(lvalue, "ListenFIFO")) { | |
214 | p->type = SOCKET_FIFO; | |
215 | ||
216 | if (!(p->path = strdup(rvalue))) { | |
217 | free(p); | |
218 | return -ENOMEM; | |
219 | } | |
220 | ||
221 | path_kill_slashes(p->path); | |
222 | } else { | |
223 | p->type = SOCKET_SOCKET; | |
224 | ||
225 | if ((r = socket_address_parse(&p->address, rvalue)) < 0) { | |
226 | log_error("[%s:%u] Failed to parse address value: %s", filename, line, rvalue); | |
227 | free(p); | |
228 | return r; | |
229 | } | |
230 | ||
231 | if (streq(lvalue, "ListenStream")) | |
232 | p->address.type = SOCK_STREAM; | |
233 | else if (streq(lvalue, "ListenDatagram")) | |
234 | p->address.type = SOCK_DGRAM; | |
235 | else { | |
236 | assert(streq(lvalue, "ListenSequentialPacket")); | |
237 | p->address.type = SOCK_SEQPACKET; | |
238 | } | |
239 | ||
240 | if (socket_address_family(&p->address) != AF_LOCAL && p->address.type == SOCK_SEQPACKET) { | |
241 | free(p); | |
242 | return -EPROTONOSUPPORT; | |
243 | } | |
244 | } | |
245 | ||
246 | p->fd = -1; | |
247 | LIST_PREPEND(SocketPort, port, s->ports, p); | |
248 | ||
249 | return 0; | |
250 | } | |
251 | ||
252 | static int config_parse_socket_bind( | |
253 | const char *filename, | |
254 | unsigned line, | |
255 | const char *section, | |
256 | const char *lvalue, | |
257 | const char *rvalue, | |
258 | void *data, | |
259 | void *userdata) { | |
260 | ||
261 | Socket *s; | |
262 | SocketAddressBindIPv6Only b; | |
263 | ||
264 | assert(filename); | |
265 | assert(lvalue); | |
266 | assert(rvalue); | |
267 | assert(data); | |
268 | ||
269 | s = (Socket*) data; | |
270 | ||
271 | if ((b = socket_address_bind_ipv6_only_from_string(rvalue)) < 0) { | |
272 | int r; | |
273 | ||
274 | if ((r = parse_boolean(rvalue)) < 0) { | |
275 | log_error("[%s:%u] Failed to parse bind IPv6 only value: %s", filename, line, rvalue); | |
276 | return -EBADMSG; | |
277 | } | |
278 | ||
279 | s->bind_ipv6_only = r ? SOCKET_ADDRESS_IPV6_ONLY : SOCKET_ADDRESS_BOTH; | |
280 | } else | |
281 | s->bind_ipv6_only = b; | |
282 | ||
283 | return 0; | |
284 | } | |
285 | ||
286 | static int config_parse_nice( | |
287 | const char *filename, | |
288 | unsigned line, | |
289 | const char *section, | |
290 | const char *lvalue, | |
291 | const char *rvalue, | |
292 | void *data, | |
293 | void *userdata) { | |
294 | ||
295 | ExecContext *c = data; | |
296 | int priority, r; | |
297 | ||
298 | assert(filename); | |
299 | assert(lvalue); | |
300 | assert(rvalue); | |
301 | assert(data); | |
302 | ||
303 | if ((r = safe_atoi(rvalue, &priority)) < 0) { | |
304 | log_error("[%s:%u] Failed to parse nice priority: %s", filename, line, rvalue); | |
305 | return r; | |
306 | } | |
307 | ||
308 | if (priority < PRIO_MIN || priority >= PRIO_MAX) { | |
309 | log_error("[%s:%u] Nice priority out of range: %s", filename, line, rvalue); | |
310 | return -ERANGE; | |
311 | } | |
312 | ||
313 | c->nice = priority; | |
314 | c->nice_set = false; | |
315 | ||
316 | return 0; | |
317 | } | |
318 | ||
319 | static int config_parse_oom_adjust( | |
320 | const char *filename, | |
321 | unsigned line, | |
322 | const char *section, | |
323 | const char *lvalue, | |
324 | const char *rvalue, | |
325 | void *data, | |
326 | void *userdata) { | |
327 | ||
328 | ExecContext *c = data; | |
329 | int oa, r; | |
330 | ||
331 | assert(filename); | |
332 | assert(lvalue); | |
333 | assert(rvalue); | |
334 | assert(data); | |
335 | ||
336 | if ((r = safe_atoi(rvalue, &oa)) < 0) { | |
337 | log_error("[%s:%u] Failed to parse OOM adjust value: %s", filename, line, rvalue); | |
338 | return r; | |
339 | } | |
340 | ||
341 | if (oa < OOM_DISABLE || oa > OOM_ADJUST_MAX) { | |
342 | log_error("[%s:%u] OOM adjust value out of range: %s", filename, line, rvalue); | |
343 | return -ERANGE; | |
344 | } | |
345 | ||
346 | c->oom_adjust = oa; | |
347 | c->oom_adjust_set = true; | |
348 | ||
349 | return 0; | |
350 | } | |
351 | ||
352 | static int config_parse_mode( | |
353 | const char *filename, | |
354 | unsigned line, | |
355 | const char *section, | |
356 | const char *lvalue, | |
357 | const char *rvalue, | |
358 | void *data, | |
359 | void *userdata) { | |
360 | ||
361 | mode_t *m = data; | |
362 | long l; | |
363 | char *x = NULL; | |
364 | ||
365 | assert(filename); | |
366 | assert(lvalue); | |
367 | assert(rvalue); | |
368 | assert(data); | |
369 | ||
370 | errno = 0; | |
371 | l = strtol(rvalue, &x, 8); | |
372 | if (!x || *x || errno) { | |
373 | log_error("[%s:%u] Failed to parse mode value: %s", filename, line, rvalue); | |
374 | return errno ? -errno : -EINVAL; | |
375 | } | |
376 | ||
377 | if (l < 0000 || l > 07777) { | |
378 | log_error("[%s:%u] mode value out of range: %s", filename, line, rvalue); | |
379 | return -ERANGE; | |
380 | } | |
381 | ||
382 | *m = (mode_t) l; | |
383 | return 0; | |
384 | } | |
385 | ||
386 | static int config_parse_exec( | |
387 | const char *filename, | |
388 | unsigned line, | |
389 | const char *section, | |
390 | const char *lvalue, | |
391 | const char *rvalue, | |
392 | void *data, | |
393 | void *userdata) { | |
394 | ||
395 | ExecCommand **e = data, *nce = NULL; | |
396 | char **n; | |
397 | char *w; | |
398 | unsigned k; | |
399 | size_t l; | |
400 | char *state, *path = NULL; | |
401 | bool honour_argv0, write_to_path; | |
402 | ||
403 | assert(filename); | |
404 | assert(lvalue); | |
405 | assert(rvalue); | |
406 | assert(data); | |
407 | ||
408 | /* We accept an absolute path as first argument, or | |
409 | * alternatively an absolute prefixed with @ to allow | |
410 | * overriding of argv[0]. */ | |
411 | ||
412 | honour_argv0 = rvalue[0] == '@'; | |
413 | ||
414 | if (rvalue[honour_argv0 ? 1 : 0] != '/') { | |
415 | log_error("[%s:%u] Invalid executable path in command line: %s", filename, line, rvalue); | |
416 | return -EINVAL; | |
417 | } | |
418 | ||
419 | k = 0; | |
420 | FOREACH_WORD_QUOTED(w, l, rvalue, state) | |
421 | k++; | |
422 | ||
423 | if (!(n = new(char*, k + (honour_argv0 ? 0 : 1)))) | |
424 | return -ENOMEM; | |
425 | ||
426 | k = 0; | |
427 | write_to_path = honour_argv0; | |
428 | FOREACH_WORD_QUOTED(w, l, rvalue, state) { | |
429 | if (write_to_path) { | |
430 | if (!(path = strndup(w+1, l-1))) | |
431 | goto fail; | |
432 | write_to_path = false; | |
433 | } else { | |
434 | if (!(n[k++] = strndup(w, l))) | |
435 | goto fail; | |
436 | } | |
437 | } | |
438 | ||
439 | n[k] = NULL; | |
440 | ||
441 | if (!n[0]) { | |
442 | log_error("[%s:%u] Invalid command line: %s", filename, line, rvalue); | |
443 | strv_free(n); | |
444 | return -EINVAL; | |
445 | } | |
446 | ||
447 | if (!path) | |
448 | if (!(path = strdup(n[0]))) | |
449 | goto fail; | |
450 | ||
451 | assert(path_is_absolute(path)); | |
452 | ||
453 | if (!(nce = new0(ExecCommand, 1))) | |
454 | goto fail; | |
455 | ||
456 | nce->argv = n; | |
457 | nce->path = path; | |
458 | ||
459 | path_kill_slashes(nce->path); | |
460 | ||
461 | exec_command_append_list(e, nce); | |
462 | ||
463 | return 0; | |
464 | ||
465 | fail: | |
466 | n[k] = NULL; | |
467 | strv_free(n); | |
468 | free(path); | |
469 | free(nce); | |
470 | ||
471 | return -ENOMEM; | |
472 | } | |
473 | ||
474 | static int config_parse_usec( | |
475 | const char *filename, | |
476 | unsigned line, | |
477 | const char *section, | |
478 | const char *lvalue, | |
479 | const char *rvalue, | |
480 | void *data, | |
481 | void *userdata) { | |
482 | ||
483 | usec_t *usec = data; | |
484 | int r; | |
485 | ||
486 | assert(filename); | |
487 | assert(lvalue); | |
488 | assert(rvalue); | |
489 | assert(data); | |
490 | ||
491 | if ((r = parse_usec(rvalue, usec)) < 0) { | |
492 | log_error("[%s:%u] Failed to parse time value: %s", filename, line, rvalue); | |
493 | return r; | |
494 | } | |
495 | ||
496 | return 0; | |
497 | } | |
498 | ||
499 | DEFINE_CONFIG_PARSE_ENUM(config_parse_service_type, service_type, ServiceType, "Failed to parse service type"); | |
500 | DEFINE_CONFIG_PARSE_ENUM(config_parse_service_restart, service_restart, ServiceRestart, "Failed to parse service restart specifier"); | |
501 | ||
502 | static int config_parse_bindtodevice( | |
503 | const char *filename, | |
504 | unsigned line, | |
505 | const char *section, | |
506 | const char *lvalue, | |
507 | const char *rvalue, | |
508 | void *data, | |
509 | void *userdata) { | |
510 | ||
511 | Socket *s = data; | |
512 | char *n; | |
513 | ||
514 | assert(filename); | |
515 | assert(lvalue); | |
516 | assert(rvalue); | |
517 | assert(data); | |
518 | ||
519 | if (rvalue[0] && !streq(rvalue, "*")) { | |
520 | if (!(n = strdup(rvalue))) | |
521 | return -ENOMEM; | |
522 | } else | |
523 | n = NULL; | |
524 | ||
525 | free(s->bind_to_device); | |
526 | s->bind_to_device = n; | |
527 | ||
528 | return 0; | |
529 | } | |
530 | ||
531 | DEFINE_CONFIG_PARSE_ENUM(config_parse_output, exec_output, ExecOutput, "Failed to parse output specifier"); | |
532 | DEFINE_CONFIG_PARSE_ENUM(config_parse_input, exec_input, ExecInput, "Failed to parse input specifier"); | |
533 | ||
534 | static int config_parse_facility( | |
535 | const char *filename, | |
536 | unsigned line, | |
537 | const char *section, | |
538 | const char *lvalue, | |
539 | const char *rvalue, | |
540 | void *data, | |
541 | void *userdata) { | |
542 | ||
543 | ||
544 | int *o = data, x; | |
545 | ||
546 | assert(filename); | |
547 | assert(lvalue); | |
548 | assert(rvalue); | |
549 | assert(data); | |
550 | ||
551 | if ((x = log_facility_from_string(rvalue)) < 0) { | |
552 | log_error("[%s:%u] Failed to parse log facility: %s", filename, line, rvalue); | |
553 | return -EBADMSG; | |
554 | } | |
555 | ||
556 | *o = LOG_MAKEPRI(x, LOG_PRI(*o)); | |
557 | ||
558 | return 0; | |
559 | } | |
560 | ||
561 | static int config_parse_level( | |
562 | const char *filename, | |
563 | unsigned line, | |
564 | const char *section, | |
565 | const char *lvalue, | |
566 | const char *rvalue, | |
567 | void *data, | |
568 | void *userdata) { | |
569 | ||
570 | ||
571 | int *o = data, x; | |
572 | ||
573 | assert(filename); | |
574 | assert(lvalue); | |
575 | assert(rvalue); | |
576 | assert(data); | |
577 | ||
578 | if ((x = log_level_from_string(rvalue)) < 0) { | |
579 | log_error("[%s:%u] Failed to parse log level: %s", filename, line, rvalue); | |
580 | return -EBADMSG; | |
581 | } | |
582 | ||
583 | *o = LOG_MAKEPRI(LOG_FAC(*o), x); | |
584 | return 0; | |
585 | } | |
586 | ||
587 | static int config_parse_io_class( | |
588 | const char *filename, | |
589 | unsigned line, | |
590 | const char *section, | |
591 | const char *lvalue, | |
592 | const char *rvalue, | |
593 | void *data, | |
594 | void *userdata) { | |
595 | ||
596 | ExecContext *c = data; | |
597 | int x; | |
598 | ||
599 | assert(filename); | |
600 | assert(lvalue); | |
601 | assert(rvalue); | |
602 | assert(data); | |
603 | ||
604 | if ((x = ioprio_class_from_string(rvalue)) < 0) { | |
605 | log_error("[%s:%u] Failed to parse IO scheduling class: %s", filename, line, rvalue); | |
606 | return -EBADMSG; | |
607 | } | |
608 | ||
609 | c->ioprio = IOPRIO_PRIO_VALUE(x, IOPRIO_PRIO_DATA(c->ioprio)); | |
610 | c->ioprio_set = true; | |
611 | ||
612 | return 0; | |
613 | } | |
614 | ||
615 | static int config_parse_io_priority( | |
616 | const char *filename, | |
617 | unsigned line, | |
618 | const char *section, | |
619 | const char *lvalue, | |
620 | const char *rvalue, | |
621 | void *data, | |
622 | void *userdata) { | |
623 | ||
624 | ExecContext *c = data; | |
625 | int i; | |
626 | ||
627 | assert(filename); | |
628 | assert(lvalue); | |
629 | assert(rvalue); | |
630 | assert(data); | |
631 | ||
632 | if (safe_atoi(rvalue, &i) < 0 || i < 0 || i >= IOPRIO_BE_NR) { | |
633 | log_error("[%s:%u] Failed to parse io priority: %s", filename, line, rvalue); | |
634 | return -EBADMSG; | |
635 | } | |
636 | ||
637 | c->ioprio = IOPRIO_PRIO_VALUE(IOPRIO_PRIO_CLASS(c->ioprio), i); | |
638 | c->ioprio_set = true; | |
639 | ||
640 | return 0; | |
641 | } | |
642 | ||
643 | static int config_parse_cpu_sched_policy( | |
644 | const char *filename, | |
645 | unsigned line, | |
646 | const char *section, | |
647 | const char *lvalue, | |
648 | const char *rvalue, | |
649 | void *data, | |
650 | void *userdata) { | |
651 | ||
652 | ||
653 | ExecContext *c = data; | |
654 | int x; | |
655 | ||
656 | assert(filename); | |
657 | assert(lvalue); | |
658 | assert(rvalue); | |
659 | assert(data); | |
660 | ||
661 | if ((x = sched_policy_from_string(rvalue)) < 0) { | |
662 | log_error("[%s:%u] Failed to parse CPU scheduling policy: %s", filename, line, rvalue); | |
663 | return -EBADMSG; | |
664 | } | |
665 | ||
666 | c->cpu_sched_policy = x; | |
667 | c->cpu_sched_set = true; | |
668 | ||
669 | return 0; | |
670 | } | |
671 | ||
672 | static int config_parse_cpu_sched_prio( | |
673 | const char *filename, | |
674 | unsigned line, | |
675 | const char *section, | |
676 | const char *lvalue, | |
677 | const char *rvalue, | |
678 | void *data, | |
679 | void *userdata) { | |
680 | ||
681 | ExecContext *c = data; | |
682 | int i; | |
683 | ||
684 | assert(filename); | |
685 | assert(lvalue); | |
686 | assert(rvalue); | |
687 | assert(data); | |
688 | ||
689 | /* On Linux RR/FIFO have the same range */ | |
690 | if (safe_atoi(rvalue, &i) < 0 || i < sched_get_priority_min(SCHED_RR) || i > sched_get_priority_max(SCHED_RR)) { | |
691 | log_error("[%s:%u] Failed to parse CPU scheduling priority: %s", filename, line, rvalue); | |
692 | return -EBADMSG; | |
693 | } | |
694 | ||
695 | c->cpu_sched_priority = i; | |
696 | c->cpu_sched_set = true; | |
697 | ||
698 | return 0; | |
699 | } | |
700 | ||
701 | static int config_parse_cpu_affinity( | |
702 | const char *filename, | |
703 | unsigned line, | |
704 | const char *section, | |
705 | const char *lvalue, | |
706 | const char *rvalue, | |
707 | void *data, | |
708 | void *userdata) { | |
709 | ||
710 | ExecContext *c = data; | |
711 | char *w; | |
712 | size_t l; | |
713 | char *state; | |
714 | ||
715 | assert(filename); | |
716 | assert(lvalue); | |
717 | assert(rvalue); | |
718 | assert(data); | |
719 | ||
720 | FOREACH_WORD(w, l, rvalue, state) { | |
721 | char *t; | |
722 | int r; | |
723 | unsigned cpu; | |
724 | ||
725 | if (!(t = strndup(w, l))) | |
726 | return -ENOMEM; | |
727 | ||
728 | if (!(c->cpuset)) | |
729 | if (!(c->cpuset = cpu_set_malloc(&c->cpuset_ncpus))) | |
730 | return -ENOMEM; | |
731 | ||
732 | r = safe_atou(t, &cpu); | |
733 | free(t); | |
734 | ||
735 | if (r < 0 || cpu >= c->cpuset_ncpus) { | |
736 | log_error("[%s:%u] Failed to parse CPU affinity: %s", filename, line, rvalue); | |
737 | return -EBADMSG; | |
738 | } | |
739 | ||
740 | CPU_SET_S(cpu, CPU_ALLOC_SIZE(c->cpuset_ncpus), c->cpuset); | |
741 | } | |
742 | ||
743 | return 0; | |
744 | } | |
745 | ||
746 | static int config_parse_capabilities( | |
747 | const char *filename, | |
748 | unsigned line, | |
749 | const char *section, | |
750 | const char *lvalue, | |
751 | const char *rvalue, | |
752 | void *data, | |
753 | void *userdata) { | |
754 | ||
755 | ExecContext *c = data; | |
756 | cap_t cap; | |
757 | ||
758 | assert(filename); | |
759 | assert(lvalue); | |
760 | assert(rvalue); | |
761 | assert(data); | |
762 | ||
763 | if (!(cap = cap_from_text(rvalue))) { | |
764 | if (errno == ENOMEM) | |
765 | return -ENOMEM; | |
766 | ||
767 | log_error("[%s:%u] Failed to parse capabilities: %s", filename, line, rvalue); | |
768 | return -EBADMSG; | |
769 | } | |
770 | ||
771 | if (c->capabilities) | |
772 | cap_free(c->capabilities); | |
773 | c->capabilities = cap; | |
774 | ||
775 | return 0; | |
776 | } | |
777 | ||
778 | static int config_parse_secure_bits( | |
779 | const char *filename, | |
780 | unsigned line, | |
781 | const char *section, | |
782 | const char *lvalue, | |
783 | const char *rvalue, | |
784 | void *data, | |
785 | void *userdata) { | |
786 | ||
787 | ExecContext *c = data; | |
788 | char *w; | |
789 | size_t l; | |
790 | char *state; | |
791 | ||
792 | assert(filename); | |
793 | assert(lvalue); | |
794 | assert(rvalue); | |
795 | assert(data); | |
796 | ||
797 | FOREACH_WORD(w, l, rvalue, state) { | |
798 | if (first_word(w, "keep-caps")) | |
799 | c->secure_bits |= SECURE_KEEP_CAPS; | |
800 | else if (first_word(w, "keep-caps-locked")) | |
801 | c->secure_bits |= SECURE_KEEP_CAPS_LOCKED; | |
802 | else if (first_word(w, "no-setuid-fixup")) | |
803 | c->secure_bits |= SECURE_NO_SETUID_FIXUP; | |
804 | else if (first_word(w, "no-setuid-fixup-locked")) | |
805 | c->secure_bits |= SECURE_NO_SETUID_FIXUP_LOCKED; | |
806 | else if (first_word(w, "noroot")) | |
807 | c->secure_bits |= SECURE_NOROOT; | |
808 | else if (first_word(w, "noroot-locked")) | |
809 | c->secure_bits |= SECURE_NOROOT_LOCKED; | |
810 | else { | |
811 | log_error("[%s:%u] Failed to parse secure bits: %s", filename, line, rvalue); | |
812 | return -EBADMSG; | |
813 | } | |
814 | } | |
815 | ||
816 | return 0; | |
817 | } | |
818 | ||
819 | static int config_parse_bounding_set( | |
820 | const char *filename, | |
821 | unsigned line, | |
822 | const char *section, | |
823 | const char *lvalue, | |
824 | const char *rvalue, | |
825 | void *data, | |
826 | void *userdata) { | |
827 | ||
828 | ExecContext *c = data; | |
829 | char *w; | |
830 | size_t l; | |
831 | char *state; | |
832 | ||
833 | assert(filename); | |
834 | assert(lvalue); | |
835 | assert(rvalue); | |
836 | assert(data); | |
837 | ||
838 | FOREACH_WORD(w, l, rvalue, state) { | |
839 | char *t; | |
840 | int r; | |
841 | cap_value_t cap; | |
842 | ||
843 | if (!(t = strndup(w, l))) | |
844 | return -ENOMEM; | |
845 | ||
846 | r = cap_from_name(t, &cap); | |
847 | free(t); | |
848 | ||
849 | if (r < 0) { | |
850 | log_error("[%s:%u] Failed to parse capability bounding set: %s", filename, line, rvalue); | |
851 | return -EBADMSG; | |
852 | } | |
853 | ||
854 | c->capability_bounding_set_drop |= 1 << cap; | |
855 | } | |
856 | ||
857 | return 0; | |
858 | } | |
859 | ||
860 | static int config_parse_timer_slack_nsec( | |
861 | const char *filename, | |
862 | unsigned line, | |
863 | const char *section, | |
864 | const char *lvalue, | |
865 | const char *rvalue, | |
866 | void *data, | |
867 | void *userdata) { | |
868 | ||
869 | ExecContext *c = data; | |
870 | unsigned long u; | |
871 | int r; | |
872 | ||
873 | assert(filename); | |
874 | assert(lvalue); | |
875 | assert(rvalue); | |
876 | assert(data); | |
877 | ||
878 | if ((r = safe_atolu(rvalue, &u)) < 0) { | |
879 | log_error("[%s:%u] Failed to parse time slack value: %s", filename, line, rvalue); | |
880 | return r; | |
881 | } | |
882 | ||
883 | c->timer_slack_nsec = u; | |
884 | ||
885 | return 0; | |
886 | } | |
887 | ||
888 | static int config_parse_limit( | |
889 | const char *filename, | |
890 | unsigned line, | |
891 | const char *section, | |
892 | const char *lvalue, | |
893 | const char *rvalue, | |
894 | void *data, | |
895 | void *userdata) { | |
896 | ||
897 | struct rlimit **rl = data; | |
898 | unsigned long long u; | |
899 | int r; | |
900 | ||
901 | assert(filename); | |
902 | assert(lvalue); | |
903 | assert(rvalue); | |
904 | assert(data); | |
905 | ||
906 | if ((r = safe_atollu(rvalue, &u)) < 0) { | |
907 | log_error("[%s:%u] Failed to parse resource value: %s", filename, line, rvalue); | |
908 | return r; | |
909 | } | |
910 | ||
911 | if (!*rl) | |
912 | if (!(*rl = new(struct rlimit, 1))) | |
913 | return -ENOMEM; | |
914 | ||
915 | (*rl)->rlim_cur = (*rl)->rlim_max = (rlim_t) u; | |
916 | return 0; | |
917 | } | |
918 | ||
919 | static int config_parse_cgroup( | |
920 | const char *filename, | |
921 | unsigned line, | |
922 | const char *section, | |
923 | const char *lvalue, | |
924 | const char *rvalue, | |
925 | void *data, | |
926 | void *userdata) { | |
927 | ||
928 | Unit *u = userdata; | |
929 | char *w; | |
930 | size_t l; | |
931 | char *state; | |
932 | ||
933 | FOREACH_WORD(w, l, rvalue, state) { | |
934 | char *t; | |
935 | int r; | |
936 | ||
937 | if (!(t = strndup(w, l))) | |
938 | return -ENOMEM; | |
939 | ||
940 | r = unit_add_cgroup_from_text(u, t); | |
941 | free(t); | |
942 | ||
943 | if (r < 0) | |
944 | return r; | |
945 | } | |
946 | ||
947 | return 0; | |
948 | } | |
949 | ||
950 | static int config_parse_sysv_priority( | |
951 | const char *filename, | |
952 | unsigned line, | |
953 | const char *section, | |
954 | const char *lvalue, | |
955 | const char *rvalue, | |
956 | void *data, | |
957 | void *userdata) { | |
958 | ||
959 | int *priority = data; | |
960 | int r, i; | |
961 | ||
962 | assert(filename); | |
963 | assert(lvalue); | |
964 | assert(rvalue); | |
965 | assert(data); | |
966 | ||
967 | if ((r = safe_atoi(rvalue, &i)) < 0 || i < 0) { | |
968 | log_error("[%s:%u] Failed to parse SysV start priority: %s", filename, line, rvalue); | |
969 | return r; | |
970 | } | |
971 | ||
972 | *priority = (int) i; | |
973 | return 0; | |
974 | } | |
975 | ||
976 | DEFINE_CONFIG_PARSE_ENUM(config_parse_kill_mode, kill_mode, KillMode, "Failed to parse kill mode"); | |
977 | ||
978 | static int config_parse_mount_flags( | |
979 | const char *filename, | |
980 | unsigned line, | |
981 | const char *section, | |
982 | const char *lvalue, | |
983 | const char *rvalue, | |
984 | void *data, | |
985 | void *userdata) { | |
986 | ||
987 | ExecContext *c = data; | |
988 | char *w; | |
989 | size_t l; | |
990 | char *state; | |
991 | unsigned long flags = 0; | |
992 | ||
993 | assert(filename); | |
994 | assert(lvalue); | |
995 | assert(rvalue); | |
996 | assert(data); | |
997 | ||
998 | FOREACH_WORD(w, l, rvalue, state) { | |
999 | if (strncmp(w, "shared", l) == 0) | |
1000 | flags |= MS_SHARED; | |
1001 | else if (strncmp(w, "slave", l) == 0) | |
1002 | flags |= MS_SLAVE; | |
1003 | else if (strncmp(w, "private", l) == 0) | |
1004 | flags |= MS_PRIVATE; | |
1005 | else { | |
1006 | log_error("[%s:%u] Failed to parse mount flags: %s", filename, line, rvalue); | |
1007 | return -EINVAL; | |
1008 | } | |
1009 | } | |
1010 | ||
1011 | c->mount_flags = flags; | |
1012 | return 0; | |
1013 | } | |
1014 | ||
1015 | static int config_parse_timer( | |
1016 | const char *filename, | |
1017 | unsigned line, | |
1018 | const char *section, | |
1019 | const char *lvalue, | |
1020 | const char *rvalue, | |
1021 | void *data, | |
1022 | void *userdata) { | |
1023 | ||
1024 | Timer *t = data; | |
1025 | usec_t u; | |
1026 | int r; | |
1027 | TimerValue *v; | |
1028 | TimerBase b; | |
1029 | ||
1030 | assert(filename); | |
1031 | assert(lvalue); | |
1032 | assert(rvalue); | |
1033 | assert(data); | |
1034 | ||
1035 | if ((b = timer_base_from_string(lvalue)) < 0) { | |
1036 | log_error("[%s:%u] Failed to parse timer base: %s", filename, line, lvalue); | |
1037 | return -EINVAL; | |
1038 | } | |
1039 | ||
1040 | if ((r = parse_usec(rvalue, &u)) < 0) { | |
1041 | log_error("[%s:%u] Failed to parse timer value: %s", filename, line, rvalue); | |
1042 | return r; | |
1043 | } | |
1044 | ||
1045 | if (!(v = new0(TimerValue, 1))) | |
1046 | return -ENOMEM; | |
1047 | ||
1048 | v->base = b; | |
1049 | v->value = u; | |
1050 | ||
1051 | LIST_PREPEND(TimerValue, value, t->values, v); | |
1052 | ||
1053 | return 0; | |
1054 | } | |
1055 | ||
1056 | static int config_parse_timer_unit( | |
1057 | const char *filename, | |
1058 | unsigned line, | |
1059 | const char *section, | |
1060 | const char *lvalue, | |
1061 | const char *rvalue, | |
1062 | void *data, | |
1063 | void *userdata) { | |
1064 | ||
1065 | Timer *t = data; | |
1066 | int r; | |
1067 | ||
1068 | if (endswith(rvalue, ".timer")) { | |
1069 | log_error("[%s:%u] Unit cannot be of type timer: %s", filename, line, rvalue); | |
1070 | return -EINVAL; | |
1071 | } | |
1072 | ||
1073 | if ((r = manager_load_unit(t->meta.manager, rvalue, NULL, &t->unit)) < 0) { | |
1074 | log_error("[%s:%u] Failed to load unit: %s", filename, line, rvalue); | |
1075 | return r; | |
1076 | } | |
1077 | ||
1078 | return 0; | |
1079 | } | |
1080 | ||
1081 | static int config_parse_path_spec( | |
1082 | const char *filename, | |
1083 | unsigned line, | |
1084 | const char *section, | |
1085 | const char *lvalue, | |
1086 | const char *rvalue, | |
1087 | void *data, | |
1088 | void *userdata) { | |
1089 | ||
1090 | Path *p = data; | |
1091 | PathSpec *s; | |
1092 | PathType b; | |
1093 | ||
1094 | assert(filename); | |
1095 | assert(lvalue); | |
1096 | assert(rvalue); | |
1097 | assert(data); | |
1098 | ||
1099 | if ((b = path_type_from_string(lvalue)) < 0) { | |
1100 | log_error("[%s:%u] Failed to parse path type: %s", filename, line, lvalue); | |
1101 | return -EINVAL; | |
1102 | } | |
1103 | ||
1104 | if (!path_is_absolute(rvalue)) { | |
1105 | log_error("[%s:%u] Path is not absolute: %s", filename, line, rvalue); | |
1106 | return -EINVAL; | |
1107 | } | |
1108 | ||
1109 | if (!(s = new0(PathSpec, 1))) | |
1110 | return -ENOMEM; | |
1111 | ||
1112 | if (!(s->path = strdup(rvalue))) { | |
1113 | free(s); | |
1114 | return -ENOMEM; | |
1115 | } | |
1116 | ||
1117 | path_kill_slashes(s->path); | |
1118 | ||
1119 | s->type = b; | |
1120 | s->inotify_fd = -1; | |
1121 | ||
1122 | LIST_PREPEND(PathSpec, spec, p->specs, s); | |
1123 | ||
1124 | return 0; | |
1125 | } | |
1126 | ||
1127 | static int config_parse_path_unit( | |
1128 | const char *filename, | |
1129 | unsigned line, | |
1130 | const char *section, | |
1131 | const char *lvalue, | |
1132 | const char *rvalue, | |
1133 | void *data, | |
1134 | void *userdata) { | |
1135 | ||
1136 | Path *t = data; | |
1137 | int r; | |
1138 | ||
1139 | if (endswith(rvalue, ".path")) { | |
1140 | log_error("[%s:%u] Unit cannot be of type path: %s", filename, line, rvalue); | |
1141 | return -EINVAL; | |
1142 | } | |
1143 | ||
1144 | if ((r = manager_load_unit(t->meta.manager, rvalue, NULL, &t->unit)) < 0) { | |
1145 | log_error("[%s:%u] Failed to load unit: %s", filename, line, rvalue); | |
1146 | return r; | |
1147 | } | |
1148 | ||
1149 | return 0; | |
1150 | } | |
1151 | ||
1152 | static int config_parse_env_file( | |
1153 | const char *filename, | |
1154 | unsigned line, | |
1155 | const char *section, | |
1156 | const char *lvalue, | |
1157 | const char *rvalue, | |
1158 | void *data, | |
1159 | void *userdata) { | |
1160 | ||
1161 | FILE *f; | |
1162 | int r; | |
1163 | char ***env = data; | |
1164 | ||
1165 | assert(filename); | |
1166 | assert(lvalue); | |
1167 | assert(rvalue); | |
1168 | assert(data); | |
1169 | ||
1170 | if (!(f = fopen(rvalue, "re"))) { | |
1171 | log_error("[%s:%u] Failed to open environment file '%s': %m", filename, line, rvalue); | |
1172 | return -errno; | |
1173 | } | |
1174 | ||
1175 | while (!feof(f)) { | |
1176 | char l[LINE_MAX], *p; | |
1177 | char **t; | |
1178 | ||
1179 | if (!fgets(l, sizeof(l), f)) { | |
1180 | if (feof(f)) | |
1181 | break; | |
1182 | ||
1183 | r = -errno; | |
1184 | log_error("[%s:%u] Failed to read environment file '%s': %m", filename, line, rvalue); | |
1185 | goto finish; | |
1186 | } | |
1187 | ||
1188 | p = strstrip(l); | |
1189 | ||
1190 | if (!*p) | |
1191 | continue; | |
1192 | ||
1193 | if (strchr(COMMENTS, *p)) | |
1194 | continue; | |
1195 | ||
1196 | t = strv_env_set(*env, p); | |
1197 | strv_free(*env); | |
1198 | *env = t; | |
1199 | } | |
1200 | ||
1201 | r = 0; | |
1202 | ||
1203 | finish: | |
1204 | if (f) | |
1205 | fclose(f); | |
1206 | ||
1207 | return r; | |
1208 | } | |
1209 | ||
1210 | static int config_parse_ip_tos( | |
1211 | const char *filename, | |
1212 | unsigned line, | |
1213 | const char *section, | |
1214 | const char *lvalue, | |
1215 | const char *rvalue, | |
1216 | void *data, | |
1217 | void *userdata) { | |
1218 | ||
1219 | int *ip_tos = data, x; | |
1220 | int r; | |
1221 | ||
1222 | assert(filename); | |
1223 | assert(lvalue); | |
1224 | assert(rvalue); | |
1225 | assert(data); | |
1226 | ||
1227 | if ((x = ip_tos_from_string(rvalue)) < 0) | |
1228 | if ((r = safe_atoi(rvalue, &x)) < 0) { | |
1229 | log_error("[%s:%u] Failed to parse IP TOS value: %s", filename, line, rvalue); | |
1230 | return r; | |
1231 | } | |
1232 | ||
1233 | *ip_tos = x; | |
1234 | return 0; | |
1235 | } | |
1236 | ||
1237 | DEFINE_CONFIG_PARSE_ENUM(config_parse_notify_access, notify_access, NotifyAccess, "Failed to parse notify access specifier"); | |
1238 | ||
1239 | #define FOLLOW_MAX 8 | |
1240 | ||
1241 | static int open_follow(char **filename, FILE **_f, Set *names, char **_final) { | |
1242 | unsigned c = 0; | |
1243 | int fd, r; | |
1244 | FILE *f; | |
1245 | char *id = NULL; | |
1246 | ||
1247 | assert(filename); | |
1248 | assert(*filename); | |
1249 | assert(_f); | |
1250 | assert(names); | |
1251 | ||
1252 | /* This will update the filename pointer if the loaded file is | |
1253 | * reached by a symlink. The old string will be freed. */ | |
1254 | ||
1255 | for (;;) { | |
1256 | char *target, *name; | |
1257 | ||
1258 | if (c++ >= FOLLOW_MAX) | |
1259 | return -ELOOP; | |
1260 | ||
1261 | path_kill_slashes(*filename); | |
1262 | ||
1263 | /* Add the file name we are currently looking at to | |
1264 | * the names of this unit */ | |
1265 | name = file_name_from_path(*filename); | |
1266 | if (!(id = set_get(names, name))) { | |
1267 | ||
1268 | if (!(id = strdup(name))) | |
1269 | return -ENOMEM; | |
1270 | ||
1271 | if ((r = set_put(names, id)) < 0) { | |
1272 | free(id); | |
1273 | return r; | |
1274 | } | |
1275 | } | |
1276 | ||
1277 | /* Try to open the file name, but don't if its a symlink */ | |
1278 | if ((fd = open(*filename, O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW)) >= 0) | |
1279 | break; | |
1280 | ||
1281 | if (errno != ELOOP) | |
1282 | return -errno; | |
1283 | ||
1284 | /* Hmm, so this is a symlink. Let's read the name, and follow it manually */ | |
1285 | if ((r = readlink_and_make_absolute(*filename, &target)) < 0) | |
1286 | return r; | |
1287 | ||
1288 | free(*filename); | |
1289 | *filename = target; | |
1290 | } | |
1291 | ||
1292 | if (!(f = fdopen(fd, "r"))) { | |
1293 | r = -errno; | |
1294 | close_nointr_nofail(fd); | |
1295 | return r; | |
1296 | } | |
1297 | ||
1298 | *_f = f; | |
1299 | *_final = id; | |
1300 | return 0; | |
1301 | } | |
1302 | ||
1303 | static int merge_by_names(Unit **u, Set *names, const char *id) { | |
1304 | char *k; | |
1305 | int r; | |
1306 | ||
1307 | assert(u); | |
1308 | assert(*u); | |
1309 | assert(names); | |
1310 | ||
1311 | /* Let's try to add in all symlink names we found */ | |
1312 | while ((k = set_steal_first(names))) { | |
1313 | ||
1314 | /* First try to merge in the other name into our | |
1315 | * unit */ | |
1316 | if ((r = unit_merge_by_name(*u, k)) < 0) { | |
1317 | Unit *other; | |
1318 | ||
1319 | /* Hmm, we couldn't merge the other unit into | |
1320 | * ours? Then let's try it the other way | |
1321 | * round */ | |
1322 | ||
1323 | other = manager_get_unit((*u)->meta.manager, k); | |
1324 | free(k); | |
1325 | ||
1326 | if (other) | |
1327 | if ((r = unit_merge(other, *u)) >= 0) { | |
1328 | *u = other; | |
1329 | return merge_by_names(u, names, NULL); | |
1330 | } | |
1331 | ||
1332 | return r; | |
1333 | } | |
1334 | ||
1335 | if (id == k) | |
1336 | unit_choose_id(*u, id); | |
1337 | ||
1338 | free(k); | |
1339 | } | |
1340 | ||
1341 | return 0; | |
1342 | } | |
1343 | ||
1344 | static void dump_items(FILE *f, const ConfigItem *items) { | |
1345 | const ConfigItem *i; | |
1346 | const char *prev_section = NULL; | |
1347 | bool not_first = false; | |
1348 | ||
1349 | struct { | |
1350 | ConfigParserCallback callback; | |
1351 | const char *rvalue; | |
1352 | } table[] = { | |
1353 | { config_parse_int, "INTEGER" }, | |
1354 | { config_parse_unsigned, "UNSIGNED" }, | |
1355 | { config_parse_size, "SIZE" }, | |
1356 | { config_parse_bool, "BOOLEAN" }, | |
1357 | { config_parse_string, "STRING" }, | |
1358 | { config_parse_path, "PATH" }, | |
1359 | { config_parse_strv, "STRING [...]" }, | |
1360 | { config_parse_nice, "NICE" }, | |
1361 | { config_parse_oom_adjust, "OOMADJUST" }, | |
1362 | { config_parse_io_class, "IOCLASS" }, | |
1363 | { config_parse_io_priority, "IOPRIORITY" }, | |
1364 | { config_parse_cpu_sched_policy, "CPUSCHEDPOLICY" }, | |
1365 | { config_parse_cpu_sched_prio, "CPUSCHEDPRIO" }, | |
1366 | { config_parse_cpu_affinity, "CPUAFFINITY" }, | |
1367 | { config_parse_mode, "MODE" }, | |
1368 | { config_parse_env_file, "FILE" }, | |
1369 | { config_parse_output, "OUTPUT" }, | |
1370 | { config_parse_input, "INPUT" }, | |
1371 | { config_parse_facility, "FACILITY" }, | |
1372 | { config_parse_level, "LEVEL" }, | |
1373 | { config_parse_capabilities, "CAPABILITIES" }, | |
1374 | { config_parse_secure_bits, "SECUREBITS" }, | |
1375 | { config_parse_bounding_set, "BOUNDINGSET" }, | |
1376 | { config_parse_timer_slack_nsec, "TIMERSLACK" }, | |
1377 | { config_parse_limit, "LIMIT" }, | |
1378 | { config_parse_cgroup, "CGROUP [...]" }, | |
1379 | { config_parse_deps, "UNIT [...]" }, | |
1380 | { config_parse_names, "UNIT [...]" }, | |
1381 | { config_parse_exec, "PATH [ARGUMENT [...]]" }, | |
1382 | { config_parse_service_type, "SERVICETYPE" }, | |
1383 | { config_parse_service_restart, "SERVICERESTART" }, | |
1384 | { config_parse_sysv_priority, "SYSVPRIORITY" }, | |
1385 | { config_parse_kill_mode, "KILLMODE" }, | |
1386 | { config_parse_listen, "SOCKET [...]" }, | |
1387 | { config_parse_socket_bind, "SOCKETBIND" }, | |
1388 | { config_parse_bindtodevice, "NETWORKINTERFACE" }, | |
1389 | { config_parse_usec, "SECONDS" }, | |
1390 | { config_parse_path_strv, "PATH [...]" }, | |
1391 | { config_parse_mount_flags, "MOUNTFLAG [...]" }, | |
1392 | { config_parse_string_printf, "STRING" }, | |
1393 | { config_parse_timer, "TIMER" }, | |
1394 | { config_parse_timer_unit, "NAME" }, | |
1395 | { config_parse_path_spec, "PATH" }, | |
1396 | { config_parse_path_unit, "UNIT" }, | |
1397 | { config_parse_notify_access, "ACCESS" }, | |
1398 | { config_parse_ip_tos, "TOS" }, | |
1399 | }; | |
1400 | ||
1401 | assert(f); | |
1402 | assert(items); | |
1403 | ||
1404 | for (i = items; i->lvalue; i++) { | |
1405 | unsigned j; | |
1406 | const char *rvalue = "OTHER"; | |
1407 | ||
1408 | if (!streq_ptr(i->section, prev_section)) { | |
1409 | if (!not_first) | |
1410 | not_first = true; | |
1411 | else | |
1412 | fputc('\n', f); | |
1413 | ||
1414 | fprintf(f, "[%s]\n", i->section); | |
1415 | prev_section = i->section; | |
1416 | } | |
1417 | ||
1418 | for (j = 0; j < ELEMENTSOF(table); j++) | |
1419 | if (i->parse == table[j].callback) { | |
1420 | rvalue = table[j].rvalue; | |
1421 | break; | |
1422 | } | |
1423 | ||
1424 | fprintf(f, "%s=%s\n", i->lvalue, rvalue); | |
1425 | } | |
1426 | } | |
1427 | ||
1428 | static int load_from_path(Unit *u, const char *path) { | |
1429 | ||
1430 | static const char* const section_table[_UNIT_TYPE_MAX] = { | |
1431 | [UNIT_SERVICE] = "Service", | |
1432 | [UNIT_TIMER] = "Timer", | |
1433 | [UNIT_SOCKET] = "Socket", | |
1434 | [UNIT_TARGET] = "Target", | |
1435 | [UNIT_DEVICE] = "Device", | |
1436 | [UNIT_MOUNT] = "Mount", | |
1437 | [UNIT_AUTOMOUNT] = "Automount", | |
1438 | [UNIT_SNAPSHOT] = "Snapshot", | |
1439 | [UNIT_SWAP] = "Swap", | |
1440 | [UNIT_PATH] = "Path" | |
1441 | }; | |
1442 | ||
1443 | #define EXEC_CONTEXT_CONFIG_ITEMS(context, section) \ | |
1444 | { "WorkingDirectory", config_parse_path, &(context).working_directory, section }, \ | |
1445 | { "RootDirectory", config_parse_path, &(context).root_directory, section }, \ | |
1446 | { "User", config_parse_string_printf, &(context).user, section }, \ | |
1447 | { "Group", config_parse_string_printf, &(context).group, section }, \ | |
1448 | { "SupplementaryGroups", config_parse_strv, &(context).supplementary_groups, section }, \ | |
1449 | { "Nice", config_parse_nice, &(context), section }, \ | |
1450 | { "OOMAdjust", config_parse_oom_adjust, &(context), section }, \ | |
1451 | { "IOSchedulingClass", config_parse_io_class, &(context), section }, \ | |
1452 | { "IOSchedulingPriority", config_parse_io_priority, &(context), section }, \ | |
1453 | { "CPUSchedulingPolicy", config_parse_cpu_sched_policy,&(context), section }, \ | |
1454 | { "CPUSchedulingPriority", config_parse_cpu_sched_prio, &(context), section }, \ | |
1455 | { "CPUSchedulingResetOnFork", config_parse_bool, &(context).cpu_sched_reset_on_fork, section }, \ | |
1456 | { "CPUAffinity", config_parse_cpu_affinity, &(context), section }, \ | |
1457 | { "UMask", config_parse_mode, &(context).umask, section }, \ | |
1458 | { "Environment", config_parse_strv, &(context).environment, section }, \ | |
1459 | { "EnvironmentFile", config_parse_env_file, &(context).environment, section }, \ | |
1460 | { "StandardInput", config_parse_input, &(context).std_input, section }, \ | |
1461 | { "StandardOutput", config_parse_output, &(context).std_output, section }, \ | |
1462 | { "StandardError", config_parse_output, &(context).std_error, section }, \ | |
1463 | { "TTYPath", config_parse_path, &(context).tty_path, section }, \ | |
1464 | { "SyslogIdentifier", config_parse_string_printf, &(context).syslog_identifier, section }, \ | |
1465 | { "SyslogFacility", config_parse_facility, &(context).syslog_priority, section }, \ | |
1466 | { "SyslogLevel", config_parse_level, &(context).syslog_priority, section }, \ | |
1467 | { "SyslogNoPrefix", config_parse_bool, &(context).syslog_no_prefix, section }, \ | |
1468 | { "Capabilities", config_parse_capabilities, &(context), section }, \ | |
1469 | { "SecureBits", config_parse_secure_bits, &(context), section }, \ | |
1470 | { "CapabilityBoundingSetDrop", config_parse_bounding_set, &(context), section }, \ | |
1471 | { "TimerSlackNSec", config_parse_timer_slack_nsec,&(context), section }, \ | |
1472 | { "LimitCPU", config_parse_limit, &(context).rlimit[RLIMIT_CPU], section }, \ | |
1473 | { "LimitFSIZE", config_parse_limit, &(context).rlimit[RLIMIT_FSIZE], section }, \ | |
1474 | { "LimitDATA", config_parse_limit, &(context).rlimit[RLIMIT_DATA], section }, \ | |
1475 | { "LimitSTACK", config_parse_limit, &(context).rlimit[RLIMIT_STACK], section }, \ | |
1476 | { "LimitCORE", config_parse_limit, &(context).rlimit[RLIMIT_CORE], section }, \ | |
1477 | { "LimitRSS", config_parse_limit, &(context).rlimit[RLIMIT_RSS], section }, \ | |
1478 | { "LimitNOFILE", config_parse_limit, &(context).rlimit[RLIMIT_NOFILE], section }, \ | |
1479 | { "LimitAS", config_parse_limit, &(context).rlimit[RLIMIT_AS], section }, \ | |
1480 | { "LimitNPROC", config_parse_limit, &(context).rlimit[RLIMIT_NPROC], section }, \ | |
1481 | { "LimitMEMLOCK", config_parse_limit, &(context).rlimit[RLIMIT_MEMLOCK], section }, \ | |
1482 | { "LimitLOCKS", config_parse_limit, &(context).rlimit[RLIMIT_LOCKS], section }, \ | |
1483 | { "LimitSIGPENDING", config_parse_limit, &(context).rlimit[RLIMIT_SIGPENDING], section }, \ | |
1484 | { "LimitMSGQUEUE", config_parse_limit, &(context).rlimit[RLIMIT_MSGQUEUE], section }, \ | |
1485 | { "LimitNICE", config_parse_limit, &(context).rlimit[RLIMIT_NICE], section }, \ | |
1486 | { "LimitRTPRIO", config_parse_limit, &(context).rlimit[RLIMIT_RTPRIO], section }, \ | |
1487 | { "LimitRTTIME", config_parse_limit, &(context).rlimit[RLIMIT_RTTIME], section }, \ | |
1488 | { "ControlGroup", config_parse_cgroup, u, section }, \ | |
1489 | { "ReadWriteDirectories", config_parse_path_strv, &(context).read_write_dirs, section }, \ | |
1490 | { "ReadOnlyDirectories", config_parse_path_strv, &(context).read_only_dirs, section }, \ | |
1491 | { "InaccessibleDirectories",config_parse_path_strv, &(context).inaccessible_dirs, section }, \ | |
1492 | { "PrivateTmp", config_parse_bool, &(context).private_tmp, section }, \ | |
1493 | { "MountFlags", config_parse_mount_flags, &(context), section }, \ | |
1494 | { "TCPWrapName", config_parse_string_printf, &(context).tcpwrap_name, section }, \ | |
1495 | { "PAMName", config_parse_string_printf, &(context).pam_name, section } | |
1496 | ||
1497 | const ConfigItem items[] = { | |
1498 | { "Names", config_parse_names, u, "Unit" }, | |
1499 | { "Description", config_parse_string_printf, &u->meta.description, "Unit" }, | |
1500 | { "Requires", config_parse_deps, UINT_TO_PTR(UNIT_REQUIRES), "Unit" }, | |
1501 | { "RequiresOverridable", config_parse_deps, UINT_TO_PTR(UNIT_REQUIRES_OVERRIDABLE), "Unit" }, | |
1502 | { "Requisite", config_parse_deps, UINT_TO_PTR(UNIT_REQUISITE), "Unit" }, | |
1503 | { "RequisiteOverridable", config_parse_deps, UINT_TO_PTR(UNIT_REQUISITE_OVERRIDABLE), "Unit" }, | |
1504 | { "Wants", config_parse_deps, UINT_TO_PTR(UNIT_WANTS), "Unit" }, | |
1505 | { "Conflicts", config_parse_deps, UINT_TO_PTR(UNIT_CONFLICTS), "Unit" }, | |
1506 | { "Before", config_parse_deps, UINT_TO_PTR(UNIT_BEFORE), "Unit" }, | |
1507 | { "After", config_parse_deps, UINT_TO_PTR(UNIT_AFTER), "Unit" }, | |
1508 | { "RecursiveStop", config_parse_bool, &u->meta.recursive_stop, "Unit" }, | |
1509 | { "StopWhenUnneeded", config_parse_bool, &u->meta.stop_when_unneeded, "Unit" }, | |
1510 | { "OnlyByDependency", config_parse_bool, &u->meta.only_by_dependency, "Unit" }, | |
1511 | { "DefaultDependencies", config_parse_bool, &u->meta.default_dependencies, "Unit" }, | |
1512 | ||
1513 | { "PIDFile", config_parse_path, &u->service.pid_file, "Service" }, | |
1514 | { "ExecStartPre", config_parse_exec, u->service.exec_command+SERVICE_EXEC_START_PRE, "Service" }, | |
1515 | { "ExecStart", config_parse_exec, u->service.exec_command+SERVICE_EXEC_START, "Service" }, | |
1516 | { "ExecStartPost", config_parse_exec, u->service.exec_command+SERVICE_EXEC_START_POST, "Service" }, | |
1517 | { "ExecReload", config_parse_exec, u->service.exec_command+SERVICE_EXEC_RELOAD, "Service" }, | |
1518 | { "ExecStop", config_parse_exec, u->service.exec_command+SERVICE_EXEC_STOP, "Service" }, | |
1519 | { "ExecStopPost", config_parse_exec, u->service.exec_command+SERVICE_EXEC_STOP_POST, "Service" }, | |
1520 | { "RestartSec", config_parse_usec, &u->service.restart_usec, "Service" }, | |
1521 | { "TimeoutSec", config_parse_usec, &u->service.timeout_usec, "Service" }, | |
1522 | { "Type", config_parse_service_type, &u->service.type, "Service" }, | |
1523 | { "Restart", config_parse_service_restart, &u->service.restart, "Service" }, | |
1524 | { "PermissionsStartOnly", config_parse_bool, &u->service.permissions_start_only, "Service" }, | |
1525 | { "RootDirectoryStartOnly", config_parse_bool, &u->service.root_directory_start_only, "Service" }, | |
1526 | { "ValidNoProcess", config_parse_bool, &u->service.valid_no_process, "Service" }, | |
1527 | { "SysVStartPriority", config_parse_sysv_priority, &u->service.sysv_start_priority, "Service" }, | |
1528 | { "KillMode", config_parse_kill_mode, &u->service.kill_mode, "Service" }, | |
1529 | { "NonBlocking", config_parse_bool, &u->service.exec_context.non_blocking, "Service" }, | |
1530 | { "BusName", config_parse_string_printf, &u->service.bus_name, "Service" }, | |
1531 | { "NotifyAccess", config_parse_notify_access, &u->service.notify_access, "Service" }, | |
1532 | EXEC_CONTEXT_CONFIG_ITEMS(u->service.exec_context, "Service"), | |
1533 | ||
1534 | { "ListenStream", config_parse_listen, &u->socket, "Socket" }, | |
1535 | { "ListenDatagram", config_parse_listen, &u->socket, "Socket" }, | |
1536 | { "ListenSequentialPacket", config_parse_listen, &u->socket, "Socket" }, | |
1537 | { "ListenFIFO", config_parse_listen, &u->socket, "Socket" }, | |
1538 | { "BindIPv6Only", config_parse_socket_bind, &u->socket, "Socket" }, | |
1539 | { "Backlog", config_parse_unsigned, &u->socket.backlog, "Socket" }, | |
1540 | { "BindToDevice", config_parse_bindtodevice, &u->socket, "Socket" }, | |
1541 | { "ExecStartPre", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_START_PRE, "Socket" }, | |
1542 | { "ExecStartPost", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_START_POST, "Socket" }, | |
1543 | { "ExecStopPre", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_STOP_PRE, "Socket" }, | |
1544 | { "ExecStopPost", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_STOP_POST, "Socket" }, | |
1545 | { "TimeoutSec", config_parse_usec, &u->socket.timeout_usec, "Socket" }, | |
1546 | { "DirectoryMode", config_parse_mode, &u->socket.directory_mode, "Socket" }, | |
1547 | { "SocketMode", config_parse_mode, &u->socket.socket_mode, "Socket" }, | |
1548 | { "KillMode", config_parse_kill_mode, &u->socket.kill_mode, "Socket" }, | |
1549 | { "Accept", config_parse_bool, &u->socket.accept, "Socket" }, | |
1550 | { "MaxConnections", config_parse_unsigned, &u->socket.max_connections, "Socket" }, | |
1551 | { "KeepAlive", config_parse_bool, &u->socket.keep_alive, "Socket" }, | |
1552 | { "Priority", config_parse_int, &u->socket.priority, "Socket" }, | |
1553 | { "ReceiveBuffer", config_parse_size, &u->socket.receive_buffer, "Socket" }, | |
1554 | { "SendBuffer", config_parse_size, &u->socket.send_buffer, "Socket" }, | |
1555 | { "IPTOS", config_parse_ip_tos, &u->socket.ip_tos, "Socket" }, | |
1556 | { "IPTTL", config_parse_int, &u->socket.ip_ttl, "Socket" }, | |
1557 | { "Mark", config_parse_int, &u->socket.mark, "Socket" }, | |
1558 | { "PipeSize", config_parse_size, &u->socket.pipe_size, "Socket" }, | |
1559 | { "FreeBind", config_parse_bool, &u->socket.free_bind, "Socket" }, | |
1560 | EXEC_CONTEXT_CONFIG_ITEMS(u->socket.exec_context, "Socket"), | |
1561 | ||
1562 | { "What", config_parse_string, &u->mount.parameters_fragment.what, "Mount" }, | |
1563 | { "Where", config_parse_path, &u->mount.where, "Mount" }, | |
1564 | { "Options", config_parse_string, &u->mount.parameters_fragment.options, "Mount" }, | |
1565 | { "Type", config_parse_string, &u->mount.parameters_fragment.fstype, "Mount" }, | |
1566 | { "TimeoutSec", config_parse_usec, &u->mount.timeout_usec, "Mount" }, | |
1567 | { "KillMode", config_parse_kill_mode, &u->mount.kill_mode, "Mount" }, | |
1568 | { "DirectoryMode", config_parse_mode, &u->mount.directory_mode, "Mount" }, | |
1569 | EXEC_CONTEXT_CONFIG_ITEMS(u->mount.exec_context, "Mount"), | |
1570 | ||
1571 | { "Where", config_parse_path, &u->automount.where, "Automount" }, | |
1572 | { "DirectoryMode", config_parse_mode, &u->automount.directory_mode, "Automount" }, | |
1573 | ||
1574 | { "What", config_parse_path, &u->swap.parameters_fragment.what, "Swap" }, | |
1575 | { "Priority", config_parse_int, &u->swap.parameters_fragment.priority, "Swap" }, | |
1576 | ||
1577 | { "OnActiveSec", config_parse_timer, &u->timer, "Timer" }, | |
1578 | { "OnBootSec", config_parse_timer, &u->timer, "Timer" }, | |
1579 | { "OnStartupSec", config_parse_timer, &u->timer, "Timer" }, | |
1580 | { "OnUnitActiveSec", config_parse_timer, &u->timer, "Timer" }, | |
1581 | { "OnUnitInactiveSec", config_parse_timer, &u->timer, "Timer" }, | |
1582 | { "Unit", config_parse_timer_unit, &u->timer, "Timer" }, | |
1583 | ||
1584 | { "PathExists", config_parse_path_spec, &u->path, "Path" }, | |
1585 | { "PathChanged", config_parse_path_spec, &u->path, "Path" }, | |
1586 | { "DirectoryNotEmpty", config_parse_path_spec, &u->path, "Path" }, | |
1587 | { "Unit", config_parse_path_unit, &u->path, "Path" }, | |
1588 | ||
1589 | /* The [Install] section is ignored here. */ | |
1590 | { "Alias", NULL, NULL, "Install" }, | |
1591 | { "WantedBy", NULL, NULL, "Install" }, | |
1592 | { "Also", NULL, NULL, "Install" }, | |
1593 | ||
1594 | { NULL, NULL, NULL, NULL } | |
1595 | }; | |
1596 | ||
1597 | #undef EXEC_CONTEXT_CONFIG_ITEMS | |
1598 | ||
1599 | const char *sections[4]; | |
1600 | int r; | |
1601 | Set *symlink_names; | |
1602 | FILE *f = NULL; | |
1603 | char *filename = NULL, *id = NULL; | |
1604 | Unit *merged; | |
1605 | ||
1606 | if (!u) { | |
1607 | /* Dirty dirty hack. */ | |
1608 | dump_items((FILE*) path, items); | |
1609 | return 0; | |
1610 | } | |
1611 | ||
1612 | assert(u); | |
1613 | assert(path); | |
1614 | ||
1615 | sections[0] = "Unit"; | |
1616 | sections[1] = section_table[u->meta.type]; | |
1617 | sections[2] = "Install"; | |
1618 | sections[3] = NULL; | |
1619 | ||
1620 | if (!(symlink_names = set_new(string_hash_func, string_compare_func))) | |
1621 | return -ENOMEM; | |
1622 | ||
1623 | if (path_is_absolute(path)) { | |
1624 | ||
1625 | if (!(filename = strdup(path))) { | |
1626 | r = -ENOMEM; | |
1627 | goto finish; | |
1628 | } | |
1629 | ||
1630 | if ((r = open_follow(&filename, &f, symlink_names, &id)) < 0) { | |
1631 | free(filename); | |
1632 | filename = NULL; | |
1633 | ||
1634 | if (r != -ENOENT) | |
1635 | goto finish; | |
1636 | } | |
1637 | ||
1638 | } else { | |
1639 | char **p; | |
1640 | ||
1641 | STRV_FOREACH(p, u->meta.manager->lookup_paths.unit_path) { | |
1642 | ||
1643 | /* Instead of opening the path right away, we manually | |
1644 | * follow all symlinks and add their name to our unit | |
1645 | * name set while doing so */ | |
1646 | if (!(filename = path_make_absolute(path, *p))) { | |
1647 | r = -ENOMEM; | |
1648 | goto finish; | |
1649 | } | |
1650 | ||
1651 | if ((r = open_follow(&filename, &f, symlink_names, &id)) < 0) { | |
1652 | char *sn; | |
1653 | ||
1654 | free(filename); | |
1655 | filename = NULL; | |
1656 | ||
1657 | if (r != -ENOENT) | |
1658 | goto finish; | |
1659 | ||
1660 | /* Empty the symlink names for the next run */ | |
1661 | while ((sn = set_steal_first(symlink_names))) | |
1662 | free(sn); | |
1663 | ||
1664 | continue; | |
1665 | } | |
1666 | ||
1667 | break; | |
1668 | } | |
1669 | } | |
1670 | ||
1671 | if (!filename) { | |
1672 | r = 0; | |
1673 | goto finish; | |
1674 | } | |
1675 | ||
1676 | merged = u; | |
1677 | if ((r = merge_by_names(&merged, symlink_names, id)) < 0) | |
1678 | goto finish; | |
1679 | ||
1680 | if (merged != u) { | |
1681 | u->meta.load_state = UNIT_MERGED; | |
1682 | r = 0; | |
1683 | goto finish; | |
1684 | } | |
1685 | ||
1686 | /* Now, parse the file contents */ | |
1687 | if ((r = config_parse(filename, f, sections, items, false, u)) < 0) | |
1688 | goto finish; | |
1689 | ||
1690 | free(u->meta.fragment_path); | |
1691 | u->meta.fragment_path = filename; | |
1692 | filename = NULL; | |
1693 | ||
1694 | u->meta.load_state = UNIT_LOADED; | |
1695 | r = 0; | |
1696 | ||
1697 | finish: | |
1698 | set_free_free(symlink_names); | |
1699 | free(filename); | |
1700 | ||
1701 | if (f) | |
1702 | fclose(f); | |
1703 | ||
1704 | return r; | |
1705 | } | |
1706 | ||
1707 | int unit_load_fragment(Unit *u) { | |
1708 | int r; | |
1709 | ||
1710 | assert(u); | |
1711 | ||
1712 | if (u->meta.fragment_path) { | |
1713 | ||
1714 | if ((r = load_from_path(u, u->meta.fragment_path)) < 0) | |
1715 | return r; | |
1716 | ||
1717 | } else { | |
1718 | Iterator i; | |
1719 | const char *t; | |
1720 | ||
1721 | /* Try to find the unit under its id */ | |
1722 | if ((r = load_from_path(u, u->meta.id)) < 0) | |
1723 | return r; | |
1724 | ||
1725 | /* Try to find an alias we can load this with */ | |
1726 | if (u->meta.load_state == UNIT_STUB) | |
1727 | SET_FOREACH(t, u->meta.names, i) { | |
1728 | ||
1729 | if (t == u->meta.id) | |
1730 | continue; | |
1731 | ||
1732 | if ((r = load_from_path(u, t)) < 0) | |
1733 | return r; | |
1734 | ||
1735 | if (u->meta.load_state != UNIT_STUB) | |
1736 | break; | |
1737 | } | |
1738 | ||
1739 | /* Now, follow the same logic, but look for a template */ | |
1740 | if (u->meta.load_state == UNIT_STUB && u->meta.instance) { | |
1741 | char *k; | |
1742 | ||
1743 | if (!(k = unit_name_template(u->meta.id))) | |
1744 | return -ENOMEM; | |
1745 | ||
1746 | r = load_from_path(u, k); | |
1747 | free(k); | |
1748 | ||
1749 | if (r < 0) | |
1750 | return r; | |
1751 | ||
1752 | if (u->meta.load_state == UNIT_STUB) | |
1753 | SET_FOREACH(t, u->meta.names, i) { | |
1754 | ||
1755 | if (t == u->meta.id) | |
1756 | continue; | |
1757 | ||
1758 | if (!(k = unit_name_template(t))) | |
1759 | return -ENOMEM; | |
1760 | ||
1761 | r = load_from_path(u, k); | |
1762 | free(k); | |
1763 | ||
1764 | if (r < 0) | |
1765 | return r; | |
1766 | ||
1767 | if (u->meta.load_state != UNIT_STUB) | |
1768 | break; | |
1769 | } | |
1770 | } | |
1771 | } | |
1772 | ||
1773 | return 0; | |
1774 | } | |
1775 | ||
1776 | void unit_dump_config_items(FILE *f) { | |
1777 | /* OK, this wins a prize for extreme ugliness. */ | |
1778 | ||
1779 | load_from_path(NULL, (const void*) f); | |
1780 | } |