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[thirdparty/systemd.git] / src / load-fragment.c
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d6c9574f 1/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
3efd4195 2
a7334b09
LP		 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
87f0e418 22#include <linux/oom.h>
3efd4195
LP		 23#include <assert.h>
24#include <errno.h>
25#include <string.h>
87f0e418
LP		 26#include <unistd.h>
27#include <fcntl.h>
94f04347
LP		 28#include <sched.h>
29#include <sys/prctl.h>
15ae422b 30#include <sys/mount.h>
25e870b5 31#include <linux/fs.h>
45fb0699 32#include <sys/stat.h>
3efd4195 33
87f0e418 34#include "unit.h"
3efd4195
LP		 35#include "strv.h"
36#include "conf-parser.h"
37#include "load-fragment.h"
16354eff 38#include "log.h"
9eba9da4 39#include "ioprio.h"
94f04347
LP		 40#include "securebits.h"
41#include "missing.h"
9e2f7c11 42#include "unit-name.h"
398ef8ba 43#include "bus-errors.h"
3efd4195 44
07459bb6
FF		 45#ifndef HAVE_SYSV_COMPAT
46static int config_parse_warn_compat(
47 const char *filename,
48 unsigned line,
49 const char *section,
50 const char *lvalue,
51 const char *rvalue,
52 void *data,
53 void *userdata) {
54
55 log_debug("[%s:%u] Support for option %s= has been disabled at compile time and is ignored", filename, line, lvalue);
56 return 0;
57}
58#endif
59
42f4e3c4 60static int config_parse_deps(
3efd4195
LP		 61 const char *filename,
62 unsigned line,
63 const char *section,
64 const char *lvalue,
65 const char *rvalue,
66 void *data,
67 void *userdata) {
68
87f0e418
LP		 69 UnitDependency d = PTR_TO_UINT(data);
70 Unit *u = userdata;
3efd4195
LP		 71 char *w;
72 size_t l;
73 char *state;
74
75 assert(filename);
76 assert(lvalue);
77 assert(rvalue);
3efd4195 78
f60f22df 79 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
9e2f7c11 80 char *t, *k;
3efd4195 81 int r;
3efd4195
LP		 82
83 if (!(t = strndup(w, l)))
84 return -ENOMEM;
85
9e2f7c11 86 k = unit_name_printf(u, t);
3efd4195
LP		 87 free(t);
88
9e2f7c11
LP		 89 if (!k)
90 return -ENOMEM;
91
701cc384 92 r = unit_add_dependency_by_name(u, d, k, NULL, true);
9e2f7c11 93
c0b34696
LP		 94 if (r < 0) {
95 log_error("Failed to add dependency on %s, ignoring: %s", k, strerror(-r));
96 free(k);
97 return 0;
98 }
99
100 free(k);
3efd4195
LP		 101 }
102
103 return 0;
104}
105
42f4e3c4 106static int config_parse_names(
87d1515d
LP		 107 const char *filename,
108 unsigned line,
109 const char *section,
110 const char *lvalue,
111 const char *rvalue,
112 void *data,
113 void *userdata) {
114
87f0e418 115 Unit *u = userdata;
87d1515d
LP		 116 char *w;
117 size_t l;
118 char *state;
119
120 assert(filename);
121 assert(lvalue);
122 assert(rvalue);
123 assert(data);
124
f60f22df 125 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
9e2f7c11 126 char *t, *k;
87d1515d 127 int r;
87d1515d
LP		 128
129 if (!(t = strndup(w, l)))
130 return -ENOMEM;
131
9e2f7c11 132 k = unit_name_printf(u, t);
87d1515d 133 free(t);
23a177ef 134
9e2f7c11
LP		 135 if (!k)
136 return -ENOMEM;
137
138 r = unit_merge_by_name(u, k);
9e2f7c11 139
c0b34696
LP		 140 if (r < 0) {
141 log_error("Failed to add name %s, ignoring: %s", k, strerror(-r));
142 free(k);
143 return 0;
144 }
145
146 free(k);
87d1515d
LP		 147 }
148
149 return 0;
150}
151
f2d3769a 152static int config_parse_string_printf(
932921b5
LP		 153 const char *filename,
154 unsigned line,
155 const char *section,
156 const char *lvalue,
157 const char *rvalue,
158 void *data,
159 void *userdata) {
160
161 Unit *u = userdata;
f2d3769a 162 char **s = data;
932921b5
LP		 163 char *k;
164
165 assert(filename);
166 assert(lvalue);
167 assert(rvalue);
f2d3769a
LP		 168 assert(s);
169 assert(u);
932921b5
LP		 170
171 if (!(k = unit_full_printf(u, rvalue)))
172 return -ENOMEM;
173
f2d3769a 174 free(*s);
932921b5 175 if (*k)
f2d3769a 176 *s = k;
932921b5
LP		 177 else {
178 free(k);
f2d3769a 179 *s = NULL;
932921b5
LP		 180 }
181
182 return 0;
183}
184
42f4e3c4
LP		 185static int config_parse_listen(
186 const char *filename,
187 unsigned line,
188 const char *section,
189 const char *lvalue,
190 const char *rvalue,
191 void *data,
192 void *userdata) {
193
16354eff 194 int r;
542563ba
LP		 195 SocketPort *p;
196 Socket *s;
16354eff 197
42f4e3c4
LP		 198 assert(filename);
199 assert(lvalue);
200 assert(rvalue);
201 assert(data);
202
542563ba
LP		 203 s = (Socket*) data;
204
205 if (!(p = new0(SocketPort, 1)))
206 return -ENOMEM;
207
208 if (streq(lvalue, "ListenFIFO")) {
209 p->type = SOCKET_FIFO;
210
211 if (!(p->path = strdup(rvalue))) {
212 free(p);
213 return -ENOMEM;
214 }
01f78473
LP		 215
216 path_kill_slashes(p->path);
542563ba
LP		 217 } else {
218 p->type = SOCKET_SOCKET;
219
220 if ((r = socket_address_parse(&p->address, rvalue)) < 0) {
c0b34696 221 log_error("[%s:%u] Failed to parse address value, ignoring: %s", filename, line, rvalue);
542563ba 222 free(p);
c0b34696 223 return 0;
542563ba
LP		 224 }
225
226 if (streq(lvalue, "ListenStream"))
227 p->address.type = SOCK_STREAM;
228 else if (streq(lvalue, "ListenDatagram"))
229 p->address.type = SOCK_DGRAM;
230 else {
231 assert(streq(lvalue, "ListenSequentialPacket"));
232 p->address.type = SOCK_SEQPACKET;
233 }
234
235 if (socket_address_family(&p->address) != AF_LOCAL && p->address.type == SOCK_SEQPACKET) {
c0b34696 236 log_error("[%s:%u] Address family not supported, ignoring: %s", filename, line, rvalue);
542563ba 237 free(p);
c0b34696 238 return 0;
542563ba 239 }
16354eff
LP		 240 }
241
542563ba 242 p->fd = -1;
034c6ed7 243 LIST_PREPEND(SocketPort, port, s->ports, p);
542563ba 244
16354eff 245 return 0;
42f4e3c4
LP		 246}
247
034c6ed7 248static int config_parse_socket_bind(
42f4e3c4
LP		 249 const char *filename,
250 unsigned line,
251 const char *section,
252 const char *lvalue,
253 const char *rvalue,
254 void *data,
255 void *userdata) {
256
542563ba 257 Socket *s;
c0120d99 258 SocketAddressBindIPv6Only b;
42f4e3c4
LP		 259
260 assert(filename);
261 assert(lvalue);
262 assert(rvalue);
263 assert(data);
264
542563ba
LP		 265 s = (Socket*) data;
266
c0120d99
LP		 267 if ((b = socket_address_bind_ipv6_only_from_string(rvalue)) < 0) {
268 int r;
269
270 if ((r = parse_boolean(rvalue)) < 0) {
c0b34696
LP		 271 log_error("[%s:%u] Failed to parse bind IPv6 only value, ignoring: %s", filename, line, rvalue);
272 return 0;
c0120d99 273 }
42f4e3c4 274
c0120d99
LP		 275 s->bind_ipv6_only = r ? SOCKET_ADDRESS_IPV6_ONLY : SOCKET_ADDRESS_BOTH;
276 } else
277 s->bind_ipv6_only = b;
542563ba 278
42f4e3c4
LP		 279 return 0;
280}
281
034c6ed7
LP		 282static int config_parse_nice(
283 const char *filename,
284 unsigned line,
285 const char *section,
286 const char *lvalue,
287 const char *rvalue,
288 void *data,
289 void *userdata) {
290
fb33a393
LP		 291 ExecContext *c = data;
292 int priority, r;
034c6ed7
LP		 293
294 assert(filename);
295 assert(lvalue);
296 assert(rvalue);
297 assert(data);
298
299 if ((r = safe_atoi(rvalue, &priority)) < 0) {
c0b34696
LP		 300 log_error("[%s:%u] Failed to parse nice priority, ignoring: %s. ", filename, line, rvalue);
301 return 0;
034c6ed7
LP		 302 }
303
304 if (priority < PRIO_MIN || priority >= PRIO_MAX) {
c0b34696
LP		 305 log_error("[%s:%u] Nice priority out of range, ignoring: %s", filename, line, rvalue);
306 return 0;
034c6ed7
LP		 307 }
308
fb33a393
LP		 309 c->nice = priority;
310 c->nice_set = false;
311
034c6ed7
LP		 312 return 0;
313}
314
dd6c17b1 315static int config_parse_oom_score_adjust(
034c6ed7
LP		 316 const char *filename,
317 unsigned line,
318 const char *section,
319 const char *lvalue,
320 const char *rvalue,
321 void *data,
322 void *userdata) {
323
fb33a393
LP		 324 ExecContext *c = data;
325 int oa, r;
034c6ed7
LP		 326
327 assert(filename);
328 assert(lvalue);
329 assert(rvalue);
330 assert(data);
331
332 if ((r = safe_atoi(rvalue, &oa)) < 0) {
dd6c17b1 333 log_error("[%s:%u] Failed to parse the OOM score adjust value, ignoring: %s", filename, line, rvalue);
c0b34696 334 return 0;
034c6ed7
LP		 335 }
336
dd6c17b1
LP		 337 if (oa < OOM_SCORE_ADJ_MIN || oa > OOM_SCORE_ADJ_MAX) {
338 log_error("[%s:%u] OOM score adjust value out of range, ignoring: %s", filename, line, rvalue);
c0b34696 339 return 0;
034c6ed7
LP		 340 }
341
dd6c17b1
LP		 342 c->oom_score_adjust = oa;
343 c->oom_score_adjust_set = true;
fb33a393 344
034c6ed7
LP		 345 return 0;
346}
347
b5a0699f 348static int config_parse_mode(
034c6ed7
LP		 349 const char *filename,
350 unsigned line,
351 const char *section,
352 const char *lvalue,
353 const char *rvalue,
354 void *data,
355 void *userdata) {
356
357 mode_t *m = data;
358 long l;
359 char *x = NULL;
360
361 assert(filename);
362 assert(lvalue);
363 assert(rvalue);
364 assert(data);
365
366 errno = 0;
367 l = strtol(rvalue, &x, 8);
368 if (!x || *x || errno) {
c0b34696
LP		 369 log_error("[%s:%u] Failed to parse mode value, ignoring: %s", filename, line, rvalue);
370 return 0;
034c6ed7
LP		 371 }
372
b5a0699f 373 if (l < 0000 || l > 07777) {
c0b34696
LP		 374 log_error("[%s:%u] mode value out of range, ignoring: %s", filename, line, rvalue);
375 return 0;
034c6ed7
LP		 376 }
377
378 *m = (mode_t) l;
379 return 0;
380}
381
382static int config_parse_exec(
383 const char *filename,
384 unsigned line,
385 const char *section,
386 const char *lvalue,
387 const char *rvalue,
388 void *data,
389 void *userdata) {
390
61e5d8ed
LP		 391 ExecCommand **e = data, *nce;
392 char *path, **n;
034c6ed7 393 unsigned k;
034c6ed7
LP		 394
395 assert(filename);
396 assert(lvalue);
397 assert(rvalue);
61e5d8ed 398 assert(e);
034c6ed7 399
6c666e26
LP		 400 /* We accept an absolute path as first argument, or
401 * alternatively an absolute prefixed with @ to allow
402 * overriding of argv[0]. */
403
61e5d8ed
LP		 404 for (;;) {
405 char *w;
406 size_t l;
407 char *state;
b708e7ce 408 bool honour_argv0 = false, ignore = false;
6c666e26 409
61e5d8ed
LP		 410 path = NULL;
411 nce = NULL;
412 n = NULL;
6c666e26 413
61e5d8ed 414 rvalue += strspn(rvalue, WHITESPACE);
034c6ed7 415
61e5d8ed
LP		 416 if (rvalue[0] == 0)
417 break;
034c6ed7 418
b708e7ce
LP		 419 if (rvalue[0] == '-') {
420 ignore = true;
421 rvalue ++;
422 }
423
424 if (rvalue[0] == '@') {
425 honour_argv0 = true;
426 rvalue ++;
427 }
61e5d8ed 428
b708e7ce 429 if (*rvalue != '/') {
c0b34696
LP		 430 log_error("[%s:%u] Invalid executable path in command line, ignoring: %s", filename, line, rvalue);
431 return 0;
6c666e26 432 }
034c6ed7 433
61e5d8ed
LP		 434 k = 0;
435 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
436 if (strncmp(w, ";", l) == 0)
437 break;
034c6ed7 438
61e5d8ed
LP		 439 k++;
440 }
034c6ed7 441
b708e7ce 442 if (!(n = new(char*, k + !honour_argv0)))
61e5d8ed
LP		 443 return -ENOMEM;
444
445 k = 0;
61e5d8ed
LP		 446 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
447 if (strncmp(w, ";", l) == 0)
448 break;
449
b708e7ce
LP		 450 if (honour_argv0 && w == rvalue) {
451 assert(!path);
452 if (!(path = cunescape_length(w, l)))
61e5d8ed 453 goto fail;
61e5d8ed
LP		 454 } else {
455 if (!(n[k++] = cunescape_length(w, l)))
456 goto fail;
457 }
458 }
459
460 n[k] = NULL;
461
462 if (!n[0]) {
c0b34696 463 log_error("[%s:%u] Invalid command line, ignoring: %s", filename, line, rvalue);
61e5d8ed 464 strv_free(n);
c0b34696 465 return 0;
61e5d8ed
LP		 466 }
467
468 if (!path)
469 if (!(path = strdup(n[0])))
470 goto fail;
6c666e26 471
61e5d8ed 472 assert(path_is_absolute(path));
6c666e26 473
61e5d8ed
LP		 474 if (!(nce = new0(ExecCommand, 1)))
475 goto fail;
476
477 nce->argv = n;
478 nce->path = path;
b708e7ce 479 nce->ignore = ignore;
034c6ed7 480
61e5d8ed 481 path_kill_slashes(nce->path);
034c6ed7 482
61e5d8ed 483 exec_command_append_list(e, nce);
01f78473 484
61e5d8ed
LP		 485 rvalue = state;
486 }
034c6ed7
LP		 487
488 return 0;
489
490fail:
6c666e26
LP		 491 n[k] = NULL;
492 strv_free(n);
493 free(path);
034c6ed7
LP		 494 free(nce);
495
496 return -ENOMEM;
497}
498
499static int config_parse_usec(
500 const char *filename,
501 unsigned line,
502 const char *section,
503 const char *lvalue,
504 const char *rvalue,
505 void *data,
506 void *userdata) {
507
508 usec_t *usec = data;
034c6ed7
LP		 509 int r;
510
511 assert(filename);
512 assert(lvalue);
513 assert(rvalue);
514 assert(data);
515
24a6e4a4 516 if ((r = parse_usec(rvalue, usec)) < 0) {
c0b34696
LP		 517 log_error("[%s:%u] Failed to parse time value, ignoring: %s", filename, line, rvalue);
518 return 0;
034c6ed7
LP		 519 }
520
034c6ed7
LP		 521 return 0;
522}
523
487393e9
LP		 524static DEFINE_CONFIG_PARSE_ENUM(config_parse_service_type, service_type, ServiceType, "Failed to parse service type");
525static DEFINE_CONFIG_PARSE_ENUM(config_parse_service_restart, service_restart, ServiceRestart, "Failed to parse service restart specifier");
034c6ed7 526
47be870b 527static int config_parse_bindtodevice(
acbb0225
LP		 528 const char *filename,
529 unsigned line,
530 const char *section,
531 const char *lvalue,
532 const char *rvalue,
533 void *data,
534 void *userdata) {
535
536 Socket *s = data;
537 char *n;
538
539 assert(filename);
540 assert(lvalue);
541 assert(rvalue);
542 assert(data);
543
544 if (rvalue[0] && !streq(rvalue, "*")) {
545 if (!(n = strdup(rvalue)))
546 return -ENOMEM;
547 } else
548 n = NULL;
549
550 free(s->bind_to_device);
551 s->bind_to_device = n;
552
553 return 0;
554}
555
487393e9
LP		 556static DEFINE_CONFIG_PARSE_ENUM(config_parse_output, exec_output, ExecOutput, "Failed to parse output specifier");
557static DEFINE_CONFIG_PARSE_ENUM(config_parse_input, exec_input, ExecInput, "Failed to parse input specifier");
87f0e418 558
47be870b 559static int config_parse_facility(
071830ff
LP		 560 const char *filename,
561 unsigned line,
562 const char *section,
563 const char *lvalue,
564 const char *rvalue,
565 void *data,
566 void *userdata) {
567
071830ff 568
94f04347 569 int *o = data, x;
071830ff
LP		 570
571 assert(filename);
572 assert(lvalue);
573 assert(rvalue);
574 assert(data);
575
0d87eb42 576 if ((x = log_facility_from_string(rvalue)) < 0) {
c0b34696
LP		 577 log_error("[%s:%u] Failed to parse log facility, ignoring: %s", filename, line, rvalue);
578 return 0;
0d87eb42 579 }
94f04347
LP		 580
581 *o = LOG_MAKEPRI(x, LOG_PRI(*o));
071830ff
LP		 582
583 return 0;
584}
585
47be870b 586static int config_parse_level(
071830ff
LP		 587 const char *filename,
588 unsigned line,
589 const char *section,
590 const char *lvalue,
591 const char *rvalue,
592 void *data,
593 void *userdata) {
594
071830ff 595
94f04347 596 int *o = data, x;
071830ff
LP		 597
598 assert(filename);
599 assert(lvalue);
600 assert(rvalue);
601 assert(data);
602
0d87eb42 603 if ((x = log_level_from_string(rvalue)) < 0) {
c0b34696
LP		 604 log_error("[%s:%u] Failed to parse log level, ignoring: %s", filename, line, rvalue);
605 return 0;
0d87eb42 606 }
071830ff 607
94f04347
LP		 608 *o = LOG_MAKEPRI(LOG_FAC(*o), x);
609 return 0;
610}
611
47be870b 612static int config_parse_io_class(
94f04347
LP		 613 const char *filename,
614 unsigned line,
615 const char *section,
616 const char *lvalue,
617 const char *rvalue,
618 void *data,
619 void *userdata) {
620
621 ExecContext *c = data;
622 int x;
623
624 assert(filename);
625 assert(lvalue);
626 assert(rvalue);
627 assert(data);
628
0d87eb42 629 if ((x = ioprio_class_from_string(rvalue)) < 0) {
c0b34696
LP		 630 log_error("[%s:%u] Failed to parse IO scheduling class, ignoring: %s", filename, line, rvalue);
631 return 0;
0d87eb42 632 }
94f04347
LP		 633
634 c->ioprio = IOPRIO_PRIO_VALUE(x, IOPRIO_PRIO_DATA(c->ioprio));
635 c->ioprio_set = true;
636
637 return 0;
638}
639
47be870b 640static int config_parse_io_priority(
94f04347
LP		 641 const char *filename,
642 unsigned line,
643 const char *section,
644 const char *lvalue,
645 const char *rvalue,
646 void *data,
647 void *userdata) {
648
649 ExecContext *c = data;
650 int i;
651
652 assert(filename);
653 assert(lvalue);
654 assert(rvalue);
655 assert(data);
656
657 if (safe_atoi(rvalue, &i) < 0 || i < 0 || i >= IOPRIO_BE_NR) {
c0b34696
LP		 658 log_error("[%s:%u] Failed to parse io priority, ignoring: %s", filename, line, rvalue);
659 return 0;
071830ff
LP		 660 }
661
94f04347
LP		 662 c->ioprio = IOPRIO_PRIO_VALUE(IOPRIO_PRIO_CLASS(c->ioprio), i);
663 c->ioprio_set = true;
664
071830ff
LP		 665 return 0;
666}
667
47be870b 668static int config_parse_cpu_sched_policy(
9eba9da4
LP		 669 const char *filename,
670 unsigned line,
671 const char *section,
672 const char *lvalue,
673 const char *rvalue,
674 void *data,
675 void *userdata) {
676
94f04347
LP		 677
678 ExecContext *c = data;
679 int x;
680
681 assert(filename);
682 assert(lvalue);
683 assert(rvalue);
684 assert(data);
685
0d87eb42 686 if ((x = sched_policy_from_string(rvalue)) < 0) {
c0b34696
LP		 687 log_error("[%s:%u] Failed to parse CPU scheduling policy, ignoring: %s", filename, line, rvalue);
688 return 0;
0d87eb42 689 }
94f04347
LP		 690
691 c->cpu_sched_policy = x;
692 c->cpu_sched_set = true;
693
694 return 0;
695}
696
47be870b 697static int config_parse_cpu_sched_prio(
94f04347
LP		 698 const char *filename,
699 unsigned line,
700 const char *section,
701 const char *lvalue,
702 const char *rvalue,
703 void *data,
704 void *userdata) {
9eba9da4
LP		 705
706 ExecContext *c = data;
707 int i;
708
709 assert(filename);
710 assert(lvalue);
711 assert(rvalue);
712 assert(data);
713
94f04347
LP		 714 /* On Linux RR/FIFO have the same range */
715 if (safe_atoi(rvalue, &i) < 0 || i < sched_get_priority_min(SCHED_RR) || i > sched_get_priority_max(SCHED_RR)) {
c0b34696
LP		 716 log_error("[%s:%u] Failed to parse CPU scheduling priority, ignoring: %s", filename, line, rvalue);
717 return 0;
94f04347 718 }
9eba9da4 719
94f04347
LP		 720 c->cpu_sched_priority = i;
721 c->cpu_sched_set = true;
722
723 return 0;
724}
725
47be870b 726static int config_parse_cpu_affinity(
94f04347
LP		 727 const char *filename,
728 unsigned line,
729 const char *section,
730 const char *lvalue,
731 const char *rvalue,
732 void *data,
733 void *userdata) {
734
735 ExecContext *c = data;
736 char *w;
737 size_t l;
738 char *state;
739
740 assert(filename);
741 assert(lvalue);
742 assert(rvalue);
743 assert(data);
744
f60f22df 745 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
94f04347
LP		 746 char *t;
747 int r;
748 unsigned cpu;
749
750 if (!(t = strndup(w, l)))
751 return -ENOMEM;
752
487393e9
LP		 753 r = safe_atou(t, &cpu);
754 free(t);
755
82c121a4
LP		 756 if (!(c->cpuset))
757 if (!(c->cpuset = cpu_set_malloc(&c->cpuset_ncpus)))
758 return -ENOMEM;
759
82c121a4 760 if (r < 0 || cpu >= c->cpuset_ncpus) {
c0b34696
LP		 761 log_error("[%s:%u] Failed to parse CPU affinity, ignoring: %s", filename, line, rvalue);
762 return 0;
9eba9da4 763 }
94f04347 764
82c121a4 765 CPU_SET_S(cpu, CPU_ALLOC_SIZE(c->cpuset_ncpus), c->cpuset);
9eba9da4
LP		 766 }
767
94f04347
LP		 768 return 0;
769}
770
47be870b 771static int config_parse_capabilities(
94f04347
LP		 772 const char *filename,
773 unsigned line,
774 const char *section,
775 const char *lvalue,
776 const char *rvalue,
777 void *data,
778 void *userdata) {
779
780 ExecContext *c = data;
781 cap_t cap;
782
783 assert(filename);
784 assert(lvalue);
785 assert(rvalue);
786 assert(data);
787
788 if (!(cap = cap_from_text(rvalue))) {
789 if (errno == ENOMEM)
790 return -ENOMEM;
791
c0b34696
LP		 792 log_error("[%s:%u] Failed to parse capabilities, ignoring: %s", filename, line, rvalue);
793 return 0;
94f04347
LP		 794 }
795
796 if (c->capabilities)
797 cap_free(c->capabilities);
798 c->capabilities = cap;
799
800 return 0;
801}
802
47be870b 803static int config_parse_secure_bits(
94f04347
LP		 804 const char *filename,
805 unsigned line,
806 const char *section,
807 const char *lvalue,
808 const char *rvalue,
809 void *data,
810 void *userdata) {
811
812 ExecContext *c = data;
813 char *w;
814 size_t l;
815 char *state;
816
817 assert(filename);
818 assert(lvalue);
819 assert(rvalue);
820 assert(data);
821
f60f22df 822 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
94f04347
LP		 823 if (first_word(w, "keep-caps"))
824 c->secure_bits |= SECURE_KEEP_CAPS;
825 else if (first_word(w, "keep-caps-locked"))
826 c->secure_bits |= SECURE_KEEP_CAPS_LOCKED;
827 else if (first_word(w, "no-setuid-fixup"))
828 c->secure_bits |= SECURE_NO_SETUID_FIXUP;
829 else if (first_word(w, "no-setuid-fixup-locked"))
830 c->secure_bits |= SECURE_NO_SETUID_FIXUP_LOCKED;
831 else if (first_word(w, "noroot"))
832 c->secure_bits |= SECURE_NOROOT;
833 else if (first_word(w, "noroot-locked"))
834 c->secure_bits |= SECURE_NOROOT_LOCKED;
9eba9da4 835 else {
c0b34696
LP		 836 log_error("[%s:%u] Failed to parse secure bits, ignoring: %s", filename, line, rvalue);
837 return 0;
9eba9da4
LP		 838 }
839 }
840
94f04347
LP		 841 return 0;
842}
843
47be870b 844static int config_parse_bounding_set(
94f04347
LP		 845 const char *filename,
846 unsigned line,
847 const char *section,
848 const char *lvalue,
849 const char *rvalue,
850 void *data,
851 void *userdata) {
852
853 ExecContext *c = data;
854 char *w;
855 size_t l;
856 char *state;
857
858 assert(filename);
859 assert(lvalue);
860 assert(rvalue);
861 assert(data);
862
f60f22df 863 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
94f04347
LP		 864 char *t;
865 int r;
866 cap_value_t cap;
867
868 if (!(t = strndup(w, l)))
869 return -ENOMEM;
870
871 r = cap_from_name(t, &cap);
872 free(t);
873
874 if (r < 0) {
c0b34696
LP		 875 log_error("[%s:%u] Failed to parse capability bounding set, ignoring: %s", filename, line, rvalue);
876 return 0;
94f04347
LP		 877 }
878
879 c->capability_bounding_set_drop |= 1 << cap;
880 }
9eba9da4
LP		 881
882 return 0;
883}
884
03fae018 885static int config_parse_timer_slack_nsec(
9eba9da4
LP		 886 const char *filename,
887 unsigned line,
888 const char *section,
889 const char *lvalue,
890 const char *rvalue,
891 void *data,
892 void *userdata) {
893
894 ExecContext *c = data;
94f04347
LP		 895 unsigned long u;
896 int r;
9eba9da4
LP		 897
898 assert(filename);
899 assert(lvalue);
900 assert(rvalue);
901 assert(data);
902
94f04347 903 if ((r = safe_atolu(rvalue, &u)) < 0) {
c0b34696
LP		 904 log_error("[%s:%u] Failed to parse time slack value, ignoring: %s", filename, line, rvalue);
905 return 0;
9eba9da4
LP		 906 }
907
03fae018 908 c->timer_slack_nsec = u;
94f04347
LP		 909
910 return 0;
911}
912
913static int config_parse_limit(
914 const char *filename,
915 unsigned line,
916 const char *section,
917 const char *lvalue,
918 const char *rvalue,
919 void *data,
920 void *userdata) {
921
922 struct rlimit **rl = data;
923 unsigned long long u;
924 int r;
925
926 assert(filename);
927 assert(lvalue);
928 assert(rvalue);
929 assert(data);
930
931 if ((r = safe_atollu(rvalue, &u)) < 0) {
c0b34696
LP		 932 log_error("[%s:%u] Failed to parse resource value, ignoring: %s", filename, line, rvalue);
933 return 0;
94f04347
LP		 934 }
935
936 if (!*rl)
937 if (!(*rl = new(struct rlimit, 1)))
938 return -ENOMEM;
9eba9da4 939
94f04347 940 (*rl)->rlim_cur = (*rl)->rlim_max = (rlim_t) u;
9eba9da4
LP		 941 return 0;
942}
943
8e274523
LP		 944static int config_parse_cgroup(
945 const char *filename,
946 unsigned line,
947 const char *section,
948 const char *lvalue,
949 const char *rvalue,
950 void *data,
951 void *userdata) {
952
953 Unit *u = userdata;
954 char *w;
955 size_t l;
956 char *state;
957
f60f22df 958 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
8e274523
LP		 959 char *t;
960 int r;
961
f60f22df 962 if (!(t = cunescape_length(w, l)))
8e274523
LP		 963 return -ENOMEM;
964
965 r = unit_add_cgroup_from_text(u, t);
966 free(t);
967
c0b34696
LP		 968 if (r < 0) {
969 log_error("[%s:%u] Failed to parse cgroup value, ignoring: %s", filename, line, rvalue);
970 return 0;
971 }
8e274523
LP		 972 }
973
974 return 0;
975}
976
07459bb6 977#ifdef HAVE_SYSV_COMPAT
a9a1e00a
LP		 978static int config_parse_sysv_priority(
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 int *priority = data;
988 int r, i;
989
990 assert(filename);
991 assert(lvalue);
992 assert(rvalue);
993 assert(data);
994
995 if ((r = safe_atoi(rvalue, &i)) < 0 || i < 0) {
c0b34696
LP		 996 log_error("[%s:%u] Failed to parse SysV start priority, ignoring: %s", filename, line, rvalue);
997 return 0;
a9a1e00a
LP		 998 }
999
1000 *priority = (int) i;
1001 return 0;
1002}
07459bb6 1003#endif
a9a1e00a 1004
487393e9 1005static DEFINE_CONFIG_PARSE_ENUM(config_parse_kill_mode, kill_mode, KillMode, "Failed to parse kill mode");
50159e6a 1006
2e22afe9
LP		 1007static int config_parse_kill_signal(
1008 const char *filename,
1009 unsigned line,
1010 const char *section,
1011 const char *lvalue,
1012 const char *rvalue,
1013 void *data,
1014 void *userdata) {
1015
1016 int *sig = data;
1017 int r;
1018
1019 assert(filename);
1020 assert(lvalue);
1021 assert(rvalue);
1022 assert(sig);
1023
1024 if ((r = signal_from_string(rvalue)) <= 0)
1025 if (startswith(rvalue, "SIG"))
1026 r = signal_from_string(rvalue+3);
1027
1028 if (r <= 0) {
c0b34696
LP		 1029 log_error("[%s:%u] Failed to parse kill signal, ignoring: %s", filename, line, rvalue);
1030 return 0;
2e22afe9
LP		 1031 }
1032
1033 *sig = r;
1034 return 0;
1035}
1036
15ae422b
LP		 1037static int config_parse_mount_flags(
1038 const char *filename,
1039 unsigned line,
1040 const char *section,
1041 const char *lvalue,
1042 const char *rvalue,
1043 void *data,
1044 void *userdata) {
1045
1046 ExecContext *c = data;
1047 char *w;
1048 size_t l;
1049 char *state;
1050 unsigned long flags = 0;
1051
1052 assert(filename);
1053 assert(lvalue);
1054 assert(rvalue);
1055 assert(data);
1056
f60f22df 1057 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
15ae422b
LP		 1058 if (strncmp(w, "shared", l) == 0)
1059 flags |= MS_SHARED;
1060 else if (strncmp(w, "slave", l) == 0)
1061 flags |= MS_SLAVE;
1062 else if (strncmp(w, "private", l) == 0)
1063 flags |= MS_PRIVATE;
1064 else {
c0b34696
LP		 1065 log_error("[%s:%u] Failed to parse mount flags, ignoring: %s", filename, line, rvalue);
1066 return 0;
15ae422b
LP		 1067 }
1068 }
1069
1070 c->mount_flags = flags;
1071 return 0;
1072}
1073
871d7de4
LP		 1074static int config_parse_timer(
1075 const char *filename,
1076 unsigned line,
1077 const char *section,
1078 const char *lvalue,
1079 const char *rvalue,
1080 void *data,
1081 void *userdata) {
1082
1083 Timer *t = data;
1084 usec_t u;
1085 int r;
1086 TimerValue *v;
1087 TimerBase b;
1088
1089 assert(filename);
1090 assert(lvalue);
1091 assert(rvalue);
1092 assert(data);
1093
1094 if ((b = timer_base_from_string(lvalue)) < 0) {
c0b34696
LP		 1095 log_error("[%s:%u] Failed to parse timer base, ignoring: %s", filename, line, lvalue);
1096 return 0;
871d7de4
LP		 1097 }
1098
1099 if ((r = parse_usec(rvalue, &u)) < 0) {
c0b34696
LP		 1100 log_error("[%s:%u] Failed to parse timer value, ignoring: %s", filename, line, rvalue);
1101 return 0;
871d7de4
LP		 1102 }
1103
1104 if (!(v = new0(TimerValue, 1)))
1105 return -ENOMEM;
1106
1107 v->base = b;
1108 v->value = u;
1109
1110 LIST_PREPEND(TimerValue, value, t->values, v);
1111
1112 return 0;
1113}
1114
1115static int config_parse_timer_unit(
1116 const char *filename,
1117 unsigned line,
1118 const char *section,
1119 const char *lvalue,
1120 const char *rvalue,
1121 void *data,
1122 void *userdata) {
1123
1124 Timer *t = data;
1125 int r;
398ef8ba
LP		 1126 DBusError error;
1127
1128 assert(filename);
1129 assert(lvalue);
1130 assert(rvalue);
1131 assert(data);
1132
1133 dbus_error_init(&error);
871d7de4
LP		 1134
1135 if (endswith(rvalue, ".timer")) {
c0b34696
LP		 1136 log_error("[%s:%u] Unit cannot be of type timer, ignoring: %s", filename, line, rvalue);
1137 return 0;
871d7de4
LP		 1138 }
1139
398ef8ba 1140 if ((r = manager_load_unit(t->meta.manager, rvalue, NULL, NULL, &t->unit)) < 0) {
c0b34696 1141 log_error("[%s:%u] Failed to load unit %s, ignoring: %s", filename, line, rvalue, bus_error(&error, r));
398ef8ba 1142 dbus_error_free(&error);
c0b34696 1143 return 0;
871d7de4
LP		 1144 }
1145
1146 return 0;
1147}
1148
01f78473
LP		 1149static int config_parse_path_spec(
1150 const char *filename,
1151 unsigned line,
1152 const char *section,
1153 const char *lvalue,
1154 const char *rvalue,
1155 void *data,
1156 void *userdata) {
1157
1158 Path *p = data;
1159 PathSpec *s;
1160 PathType b;
1161
1162 assert(filename);
1163 assert(lvalue);
1164 assert(rvalue);
1165 assert(data);
1166
1167 if ((b = path_type_from_string(lvalue)) < 0) {
c0b34696
LP		 1168 log_error("[%s:%u] Failed to parse path type, ignoring: %s", filename, line, lvalue);
1169 return 0;
01f78473
LP		 1170 }
1171
1172 if (!path_is_absolute(rvalue)) {
c0b34696
LP		 1173 log_error("[%s:%u] Path is not absolute, ignoring: %s", filename, line, rvalue);
1174 return 0;
01f78473
LP		 1175 }
1176
1177 if (!(s = new0(PathSpec, 1)))
1178 return -ENOMEM;
1179
1180 if (!(s->path = strdup(rvalue))) {
1181 free(s);
1182 return -ENOMEM;
1183 }
1184
1185 path_kill_slashes(s->path);
1186
1187 s->type = b;
1188 s->inotify_fd = -1;
1189
1190 LIST_PREPEND(PathSpec, spec, p->specs, s);
1191
1192 return 0;
1193}
1194
1195static int config_parse_path_unit(
1196 const char *filename,
1197 unsigned line,
1198 const char *section,
1199 const char *lvalue,
1200 const char *rvalue,
1201 void *data,
1202 void *userdata) {
1203
1204 Path *t = data;
1205 int r;
398ef8ba
LP		 1206 DBusError error;
1207
1208 assert(filename);
1209 assert(lvalue);
1210 assert(rvalue);
1211 assert(data);
1212
1213 dbus_error_init(&error);
01f78473
LP		 1214
1215 if (endswith(rvalue, ".path")) {
c0b34696
LP		 1216 log_error("[%s:%u] Unit cannot be of type path, ignoring: %s", filename, line, rvalue);
1217 return 0;
01f78473
LP		 1218 }
1219
398ef8ba 1220 if ((r = manager_load_unit(t->meta.manager, rvalue, NULL, &error, &t->unit)) < 0) {
c0b34696 1221 log_error("[%s:%u] Failed to load unit %s, ignoring: %s", filename, line, rvalue, bus_error(&error, r));
398ef8ba 1222 dbus_error_free(&error);
c0b34696 1223 return 0;
01f78473
LP		 1224 }
1225
1226 return 0;
1227}
1228
ddb26e18
LP		 1229static int config_parse_env_file(
1230 const char *filename,
1231 unsigned line,
1232 const char *section,
1233 const char *lvalue,
1234 const char *rvalue,
1235 void *data,
1236 void *userdata) {
1237
1238 FILE *f;
1239 int r;
1240 char ***env = data;
1241
1242 assert(filename);
1243 assert(lvalue);
1244 assert(rvalue);
1245 assert(data);
1246
1247 if (!(f = fopen(rvalue, "re"))) {
c0b34696
LP		 1248 log_error("[%s:%u] Failed to open environment file '%s', ignoring: %m", filename, line, rvalue);
1249 return 0;
ddb26e18
LP		 1250 }
1251
1252 while (!feof(f)) {
1253 char l[LINE_MAX], *p;
1254 char **t;
1255
1256 if (!fgets(l, sizeof(l), f)) {
1257 if (feof(f))
1258 break;
1259
1260 r = -errno;
c0b34696
LP		 1261 log_error("[%s:%u] Failed to read environment file '%s', ignoring: %m", filename, line, rvalue);
1262 r = 0;
ddb26e18
LP		 1263 goto finish;
1264 }
1265
1266 p = strstrip(l);
1267
1268 if (!*p)
1269 continue;
1270
1271 if (strchr(COMMENTS, *p))
1272 continue;
1273
1274 t = strv_env_set(*env, p);
1275 strv_free(*env);
1276 *env = t;
1277 }
1278
1279 r = 0;
1280
1281finish:
1282 if (f)
1283 fclose(f);
1284
1285 return r;
1286}
1287
4fd5948e
LP		 1288static int config_parse_ip_tos(
1289 const char *filename,
1290 unsigned line,
1291 const char *section,
1292 const char *lvalue,
1293 const char *rvalue,
1294 void *data,
1295 void *userdata) {
1296
1297 int *ip_tos = data, x;
1298 int r;
1299
1300 assert(filename);
1301 assert(lvalue);
1302 assert(rvalue);
1303 assert(data);
1304
1305 if ((x = ip_tos_from_string(rvalue)) < 0)
1306 if ((r = safe_atoi(rvalue, &x)) < 0) {
c0b34696
LP		 1307 log_error("[%s:%u] Failed to parse IP TOS value, ignoring: %s", filename, line, rvalue);
1308 return 0;
4fd5948e
LP		 1309 }
1310
1311 *ip_tos = x;
1312 return 0;
1313}
1314
487393e9 1315static DEFINE_CONFIG_PARSE_ENUM(config_parse_notify_access, notify_access, NotifyAccess, "Failed to parse notify access specifier");
c952c6ec 1316
071830ff 1317#define FOLLOW_MAX 8
87f0e418 1318
9e2f7c11 1319static int open_follow(char **filename, FILE **_f, Set *names, char **_final) {
0301abf4 1320 unsigned c = 0;
87f0e418
LP		 1321 int fd, r;
1322 FILE *f;
0301abf4 1323 char *id = NULL;
87f0e418
LP		 1324
1325 assert(filename);
1326 assert(*filename);
1327 assert(_f);
1328 assert(names);
1329
0301abf4
LP		 1330 /* This will update the filename pointer if the loaded file is
1331 * reached by a symlink. The old string will be freed. */
87f0e418 1332
0301abf4 1333 for (;;) {
2c7108c4 1334 char *target, *name;
87f0e418 1335
0301abf4
LP		 1336 if (c++ >= FOLLOW_MAX)
1337 return -ELOOP;
1338
b08d03ff
LP		 1339 path_kill_slashes(*filename);
1340
87f0e418 1341 /* Add the file name we are currently looking at to
8f05424d
LP		 1342 * the names of this unit, but only if it is a valid
1343 * unit name. */
0301abf4 1344 name = file_name_from_path(*filename);
87f0e418 1345
8f05424d
LP		 1346 if (unit_name_is_valid(name)) {
1347 if (!(id = set_get(names, name))) {
1348
1349 if (!(id = strdup(name)))
1350 return -ENOMEM;
87f0e418 1351
8f05424d
LP		 1352 if ((r = set_put(names, id)) < 0) {
1353 free(id);
1354 return r;
1355 }
87f0e418 1356 }
87f0e418
LP		 1357 }
1358
0301abf4
LP		 1359 /* Try to open the file name, but don't if its a symlink */
1360 if ((fd = open(*filename, O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW)) >= 0)
87f0e418
LP		 1361 break;
1362
0301abf4
LP		 1363 if (errno != ELOOP)
1364 return -errno;
1365
87f0e418 1366 /* Hmm, so this is a symlink. Let's read the name, and follow it manually */
2c7108c4 1367 if ((r = readlink_and_make_absolute(*filename, &target)) < 0)
0301abf4 1368 return r;
87f0e418 1369
0301abf4 1370 free(*filename);
2c7108c4 1371 *filename = target;
87f0e418
LP		 1372 }
1373
8f05424d 1374 if (!(f = fdopen(fd, "re"))) {
87f0e418 1375 r = -errno;
9e2f7c11 1376 close_nointr_nofail(fd);
0301abf4 1377 return r;
87f0e418
LP		 1378 }
1379
1380 *_f = f;
9e2f7c11 1381 *_final = id;
0301abf4 1382 return 0;
87f0e418
LP		 1383}
1384
23a177ef
LP		 1385static int merge_by_names(Unit **u, Set *names, const char *id) {
1386 char *k;
1387 int r;
1388
1389 assert(u);
1390 assert(*u);
1391 assert(names);
1392
1393 /* Let's try to add in all symlink names we found */
1394 while ((k = set_steal_first(names))) {
1395
1396 /* First try to merge in the other name into our
1397 * unit */
1398 if ((r = unit_merge_by_name(*u, k)) < 0) {
1399 Unit *other;
1400
1401 /* Hmm, we couldn't merge the other unit into
1402 * ours? Then let's try it the other way
1403 * round */
1404
1405 other = manager_get_unit((*u)->meta.manager, k);
1406 free(k);
1407
1408 if (other)
1409 if ((r = unit_merge(other, *u)) >= 0) {
1410 *u = other;
1411 return merge_by_names(u, names, NULL);
1412 }
1413
1414 return r;
1415 }
1416
1417 if (id == k)
1418 unit_choose_id(*u, id);
1419
1420 free(k);
1421 }
1422
1423 return 0;
1424}
1425
e537352b
LP		 1426static void dump_items(FILE *f, const ConfigItem *items) {
1427 const ConfigItem *i;
1428 const char *prev_section = NULL;
1429 bool not_first = false;
1430
1431 struct {
1432 ConfigParserCallback callback;
1433 const char *rvalue;
1434 } table[] = {
1435 { config_parse_int, "INTEGER" },
1436 { config_parse_unsigned, "UNSIGNED" },
1437 { config_parse_size, "SIZE" },
1438 { config_parse_bool, "BOOLEAN" },
1439 { config_parse_string, "STRING" },
1440 { config_parse_path, "PATH" },
1441 { config_parse_strv, "STRING [...]" },
1442 { config_parse_nice, "NICE" },
dd6c17b1 1443 { config_parse_oom_score_adjust, "OOMSCOREADJUST" },
e537352b
LP		 1444 { config_parse_io_class, "IOCLASS" },
1445 { config_parse_io_priority, "IOPRIORITY" },
1446 { config_parse_cpu_sched_policy, "CPUSCHEDPOLICY" },
1447 { config_parse_cpu_sched_prio, "CPUSCHEDPRIO" },
1448 { config_parse_cpu_affinity, "CPUAFFINITY" },
1449 { config_parse_mode, "MODE" },
ddb26e18 1450 { config_parse_env_file, "FILE" },
e537352b
LP		 1451 { config_parse_output, "OUTPUT" },
1452 { config_parse_input, "INPUT" },
1453 { config_parse_facility, "FACILITY" },
1454 { config_parse_level, "LEVEL" },
1455 { config_parse_capabilities, "CAPABILITIES" },
1456 { config_parse_secure_bits, "SECUREBITS" },
1457 { config_parse_bounding_set, "BOUNDINGSET" },
03fae018 1458 { config_parse_timer_slack_nsec, "TIMERSLACK" },
e537352b
LP		 1459 { config_parse_limit, "LIMIT" },
1460 { config_parse_cgroup, "CGROUP [...]" },
1461 { config_parse_deps, "UNIT [...]" },
1462 { config_parse_names, "UNIT [...]" },
1463 { config_parse_exec, "PATH [ARGUMENT [...]]" },
1464 { config_parse_service_type, "SERVICETYPE" },
1465 { config_parse_service_restart, "SERVICERESTART" },
07459bb6 1466#ifdef HAVE_SYSV_COMPAT
e537352b 1467 { config_parse_sysv_priority, "SYSVPRIORITY" },
07459bb6
FF		 1468#else
1469 { config_parse_warn_compat, "NOTSUPPORTED" },
1470#endif
e537352b 1471 { config_parse_kill_mode, "KILLMODE" },
2e22afe9 1472 { config_parse_kill_signal, "SIGNAL" },
e537352b
LP		 1473 { config_parse_listen, "SOCKET [...]" },
1474 { config_parse_socket_bind, "SOCKETBIND" },
93ef5e80
LP		 1475 { config_parse_bindtodevice, "NETWORKINTERFACE" },
1476 { config_parse_usec, "SECONDS" },
1477 { config_parse_path_strv, "PATH [...]" },
932921b5 1478 { config_parse_mount_flags, "MOUNTFLAG [...]" },
f2d3769a 1479 { config_parse_string_printf, "STRING" },
871d7de4
LP		 1480 { config_parse_timer, "TIMER" },
1481 { config_parse_timer_unit, "NAME" },
c952c6ec
LP		 1482 { config_parse_path_spec, "PATH" },
1483 { config_parse_path_unit, "UNIT" },
8b03daeb
LP		 1484 { config_parse_notify_access, "ACCESS" },
1485 { config_parse_ip_tos, "TOS" },
e537352b
LP		 1486 };
1487
1488 assert(f);
1489 assert(items);
1490
1491 for (i = items; i->lvalue; i++) {
1492 unsigned j;
1493 const char *rvalue = "OTHER";
1494
1495 if (!streq_ptr(i->section, prev_section)) {
1496 if (!not_first)
1497 not_first = true;
1498 else
1499 fputc('\n', f);
1500
1501 fprintf(f, "[%s]\n", i->section);
1502 prev_section = i->section;
1503 }
1504
1505 for (j = 0; j < ELEMENTSOF(table); j++)
1506 if (i->parse == table[j].callback) {
1507 rvalue = table[j].rvalue;
1508 break;
1509 }
1510
1511 fprintf(f, "%s=%s\n", i->lvalue, rvalue);
1512 }
1513}
1514
1515static int load_from_path(Unit *u, const char *path) {
87f0e418
LP		 1516
1517 static const char* const section_table[_UNIT_TYPE_MAX] = {
1518 [UNIT_SERVICE] = "Service",
1519 [UNIT_TIMER] = "Timer",
1520 [UNIT_SOCKET] = "Socket",
1521 [UNIT_TARGET] = "Target",
1522 [UNIT_DEVICE] = "Device",
1523 [UNIT_MOUNT] = "Mount",
1524 [UNIT_AUTOMOUNT] = "Automount",
07b0b134 1525 [UNIT_SNAPSHOT] = "Snapshot",
01f78473
LP		 1526 [UNIT_SWAP] = "Swap",
1527 [UNIT_PATH] = "Path"
42f4e3c4
LP		 1528 };
1529
034c6ed7 1530#define EXEC_CONTEXT_CONFIG_ITEMS(context, section) \
9eba9da4
LP		 1531 { "WorkingDirectory", config_parse_path, &(context).working_directory, section }, \
1532 { "RootDirectory", config_parse_path, &(context).root_directory, section }, \
f2d3769a
LP		 1533 { "User", config_parse_string_printf, &(context).user, section }, \
1534 { "Group", config_parse_string_printf, &(context).group, section }, \
1c01f82b 1535 { "SupplementaryGroups", config_parse_strv, &(context).supplementary_groups, section }, \
fb33a393 1536 { "Nice", config_parse_nice, &(context), section }, \
dd6c17b1 1537 { "OOMScoreAdjust", config_parse_oom_score_adjust,&(context), section }, \
9eba9da4 1538 { "IOSchedulingClass", config_parse_io_class, &(context), section }, \
94f04347
LP		 1539 { "IOSchedulingPriority", config_parse_io_priority, &(context), section }, \
1540 { "CPUSchedulingPolicy", config_parse_cpu_sched_policy,&(context), section }, \
1541 { "CPUSchedulingPriority", config_parse_cpu_sched_prio, &(context), section }, \
38b48754 1542 { "CPUSchedulingResetOnFork", config_parse_bool, &(context).cpu_sched_reset_on_fork, section }, \
94f04347 1543 { "CPUAffinity", config_parse_cpu_affinity, &(context), section }, \
b5a0699f 1544 { "UMask", config_parse_mode, &(context).umask, section }, \
071830ff 1545 { "Environment", config_parse_strv, &(context).environment, section }, \
ddb26e18 1546 { "EnvironmentFile", config_parse_env_file, &(context).environment, section }, \
80876c20
LP		 1547 { "StandardInput", config_parse_input, &(context).std_input, section }, \
1548 { "StandardOutput", config_parse_output, &(context).std_output, section }, \
a4ddf827 1549 { "StandardError", config_parse_output, &(context).std_error, section }, \
80876c20 1550 { "TTYPath", config_parse_path, &(context).tty_path, section }, \
f2d3769a 1551 { "SyslogIdentifier", config_parse_string_printf, &(context).syslog_identifier, section }, \
071830ff 1552 { "SyslogFacility", config_parse_facility, &(context).syslog_priority, section }, \
94f04347 1553 { "SyslogLevel", config_parse_level, &(context).syslog_priority, section }, \
74922904 1554 { "SyslogLevelPrefix", config_parse_bool, &(context).syslog_level_prefix, section }, \
94f04347
LP		 1555 { "Capabilities", config_parse_capabilities, &(context), section }, \
1556 { "SecureBits", config_parse_secure_bits, &(context), section }, \
1557 { "CapabilityBoundingSetDrop", config_parse_bounding_set, &(context), section }, \
03fae018 1558 { "TimerSlackNSec", config_parse_timer_slack_nsec,&(context), section }, \
94f04347
LP		 1559 { "LimitCPU", config_parse_limit, &(context).rlimit[RLIMIT_CPU], section }, \
1560 { "LimitFSIZE", config_parse_limit, &(context).rlimit[RLIMIT_FSIZE], section }, \
1561 { "LimitDATA", config_parse_limit, &(context).rlimit[RLIMIT_DATA], section }, \
1562 { "LimitSTACK", config_parse_limit, &(context).rlimit[RLIMIT_STACK], section }, \
1563 { "LimitCORE", config_parse_limit, &(context).rlimit[RLIMIT_CORE], section }, \
1564 { "LimitRSS", config_parse_limit, &(context).rlimit[RLIMIT_RSS], section }, \
1565 { "LimitNOFILE", config_parse_limit, &(context).rlimit[RLIMIT_NOFILE], section }, \
1566 { "LimitAS", config_parse_limit, &(context).rlimit[RLIMIT_AS], section }, \
1567 { "LimitNPROC", config_parse_limit, &(context).rlimit[RLIMIT_NPROC], section }, \
1568 { "LimitMEMLOCK", config_parse_limit, &(context).rlimit[RLIMIT_MEMLOCK], section }, \
1569 { "LimitLOCKS", config_parse_limit, &(context).rlimit[RLIMIT_LOCKS], section }, \
1570 { "LimitSIGPENDING", config_parse_limit, &(context).rlimit[RLIMIT_SIGPENDING], section }, \
1571 { "LimitMSGQUEUE", config_parse_limit, &(context).rlimit[RLIMIT_MSGQUEUE], section }, \
1572 { "LimitNICE", config_parse_limit, &(context).rlimit[RLIMIT_NICE], section }, \
1573 { "LimitRTPRIO", config_parse_limit, &(context).rlimit[RLIMIT_RTPRIO], section }, \
451a074f 1574 { "LimitRTTIME", config_parse_limit, &(context).rlimit[RLIMIT_RTTIME], section }, \
15ae422b
LP		 1575 { "ControlGroup", config_parse_cgroup, u, section }, \
1576 { "ReadWriteDirectories", config_parse_path_strv, &(context).read_write_dirs, section }, \
1577 { "ReadOnlyDirectories", config_parse_path_strv, &(context).read_only_dirs, section }, \
1578 { "InaccessibleDirectories",config_parse_path_strv, &(context).inaccessible_dirs, section }, \
1579 { "PrivateTmp", config_parse_bool, &(context).private_tmp, section }, \
df1f0afe 1580 { "MountFlags", config_parse_mount_flags, &(context), section }, \
f2d3769a 1581 { "TCPWrapName", config_parse_string_printf, &(context).tcpwrap_name, section }, \
2e22afe9
LP		 1582 { "PAMName", config_parse_string_printf, &(context).pam_name, section }, \
1583 { "KillMode", config_parse_kill_mode, &(context).kill_mode, section }, \
1584 { "KillSignal", config_parse_kill_signal, &(context).kill_signal, section }
034c6ed7 1585
3efd4195 1586 const ConfigItem items[] = {
09477267 1587 { "Names", config_parse_names, u, "Unit" },
f2d3769a 1588 { "Description", config_parse_string_printf, &u->meta.description, "Unit" },
09477267
LP		 1589 { "Requires", config_parse_deps, UINT_TO_PTR(UNIT_REQUIRES), "Unit" },
1590 { "RequiresOverridable", config_parse_deps, UINT_TO_PTR(UNIT_REQUIRES_OVERRIDABLE), "Unit" },
1591 { "Requisite", config_parse_deps, UINT_TO_PTR(UNIT_REQUISITE), "Unit" },
1592 { "RequisiteOverridable", config_parse_deps, UINT_TO_PTR(UNIT_REQUISITE_OVERRIDABLE), "Unit" },
1593 { "Wants", config_parse_deps, UINT_TO_PTR(UNIT_WANTS), "Unit" },
1594 { "Conflicts", config_parse_deps, UINT_TO_PTR(UNIT_CONFLICTS), "Unit" },
1595 { "Before", config_parse_deps, UINT_TO_PTR(UNIT_BEFORE), "Unit" },
1596 { "After", config_parse_deps, UINT_TO_PTR(UNIT_AFTER), "Unit" },
45fb0699 1597 { "OnFailure", config_parse_deps, UINT_TO_PTR(UNIT_ON_FAILURE), "Unit" },
09477267
LP		 1598 { "RecursiveStop", config_parse_bool, &u->meta.recursive_stop, "Unit" },
1599 { "StopWhenUnneeded", config_parse_bool, &u->meta.stop_when_unneeded, "Unit" },
b5e9dba8
LP		 1600 { "RefuseManualStart", config_parse_bool, &u->meta.refuse_manual_start, "Unit" },
1601 { "RefuseManualStop", config_parse_bool, &u->meta.refuse_manual_stop, "Unit" },
2528a7a6 1602 { "AllowIsolate", config_parse_bool, &u->meta.allow_isolate, "Unit" },
a40eb732 1603 { "DefaultDependencies", config_parse_bool, &u->meta.default_dependencies, "Unit" },
3b6fdb5b 1604 { "IgnoreDependencyFailure",config_parse_bool, &u->meta.ignore_dependency_failure, "Unit" },
faf919f1 1605 { "JobTimeoutSec", config_parse_usec, &u->meta.job_timeout, "Unit" },
1c01f82b
LP		 1606
1607 { "PIDFile", config_parse_path, &u->service.pid_file, "Service" },
1608 { "ExecStartPre", config_parse_exec, u->service.exec_command+SERVICE_EXEC_START_PRE, "Service" },
1609 { "ExecStart", config_parse_exec, u->service.exec_command+SERVICE_EXEC_START, "Service" },
1610 { "ExecStartPost", config_parse_exec, u->service.exec_command+SERVICE_EXEC_START_POST, "Service" },
1611 { "ExecReload", config_parse_exec, u->service.exec_command+SERVICE_EXEC_RELOAD, "Service" },
1612 { "ExecStop", config_parse_exec, u->service.exec_command+SERVICE_EXEC_STOP, "Service" },
1613 { "ExecStopPost", config_parse_exec, u->service.exec_command+SERVICE_EXEC_STOP_POST, "Service" },
1614 { "RestartSec", config_parse_usec, &u->service.restart_usec, "Service" },
1615 { "TimeoutSec", config_parse_usec, &u->service.timeout_usec, "Service" },
0d87eb42
LP		 1616 { "Type", config_parse_service_type, &u->service.type, "Service" },
1617 { "Restart", config_parse_service_restart, &u->service.restart, "Service" },
81a2b7ce
LP		 1618 { "PermissionsStartOnly", config_parse_bool, &u->service.permissions_start_only, "Service" },
1619 { "RootDirectoryStartOnly", config_parse_bool, &u->service.root_directory_start_only, "Service" },
02ee865a 1620 { "RemainAfterExit", config_parse_bool, &u->service.remain_after_exit, "Service" },
07459bb6 1621#ifdef HAVE_SYSV_COMPAT
a9a1e00a 1622 { "SysVStartPriority", config_parse_sysv_priority, &u->service.sysv_start_priority, "Service" },
07459bb6
FF		 1623#else
1624 { "SysVStartPriority", config_parse_warn_compat, NULL, "Service" },
1625#endif
b778d555 1626 { "NonBlocking", config_parse_bool, &u->service.exec_context.non_blocking, "Service" },
f2d3769a 1627 { "BusName", config_parse_string_printf, &u->service.bus_name, "Service" },
c952c6ec 1628 { "NotifyAccess", config_parse_notify_access, &u->service.notify_access, "Service" },
87f0e418
LP		 1629 EXEC_CONTEXT_CONFIG_ITEMS(u->service.exec_context, "Service"),
1630
1c01f82b
LP		 1631 { "ListenStream", config_parse_listen, &u->socket, "Socket" },
1632 { "ListenDatagram", config_parse_listen, &u->socket, "Socket" },
1633 { "ListenSequentialPacket", config_parse_listen, &u->socket, "Socket" },
1634 { "ListenFIFO", config_parse_listen, &u->socket, "Socket" },
1635 { "BindIPv6Only", config_parse_socket_bind, &u->socket, "Socket" },
1636 { "Backlog", config_parse_unsigned, &u->socket.backlog, "Socket" },
acbb0225 1637 { "BindToDevice", config_parse_bindtodevice, &u->socket, "Socket" },
1c01f82b
LP		 1638 { "ExecStartPre", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_START_PRE, "Socket" },
1639 { "ExecStartPost", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_START_POST, "Socket" },
1640 { "ExecStopPre", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_STOP_PRE, "Socket" },
1641 { "ExecStopPost", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_STOP_POST, "Socket" },
108736d0 1642 { "TimeoutSec", config_parse_usec, &u->socket.timeout_usec, "Socket" },
b5a0699f
LP		 1643 { "DirectoryMode", config_parse_mode, &u->socket.directory_mode, "Socket" },
1644 { "SocketMode", config_parse_mode, &u->socket.socket_mode, "Socket" },
4f2d528d 1645 { "Accept", config_parse_bool, &u->socket.accept, "Socket" },
6cf6bbc2 1646 { "MaxConnections", config_parse_unsigned, &u->socket.max_connections, "Socket" },
4fd5948e
LP		 1647 { "KeepAlive", config_parse_bool, &u->socket.keep_alive, "Socket" },
1648 { "Priority", config_parse_int, &u->socket.priority, "Socket" },
1649 { "ReceiveBuffer", config_parse_size, &u->socket.receive_buffer, "Socket" },
1650 { "SendBuffer", config_parse_size, &u->socket.send_buffer, "Socket" },
1651 { "IPTOS", config_parse_ip_tos, &u->socket.ip_tos, "Socket" },
1652 { "IPTTL", config_parse_int, &u->socket.ip_ttl, "Socket" },
1653 { "Mark", config_parse_int, &u->socket.mark, "Socket" },
1654 { "PipeSize", config_parse_size, &u->socket.pipe_size, "Socket" },
1655 { "FreeBind", config_parse_bool, &u->socket.free_bind, "Socket" },
cebf8b20 1656 { "TCPCongestion", config_parse_string, &u->socket.tcp_congestion, "Socket" },
87f0e418
LP		 1657 EXEC_CONTEXT_CONFIG_ITEMS(u->socket.exec_context, "Socket"),
1658
e537352b
LP		 1659 { "What", config_parse_string, &u->mount.parameters_fragment.what, "Mount" },
1660 { "Where", config_parse_path, &u->mount.where, "Mount" },
1661 { "Options", config_parse_string, &u->mount.parameters_fragment.options, "Mount" },
1662 { "Type", config_parse_string, &u->mount.parameters_fragment.fstype, "Mount" },
1663 { "TimeoutSec", config_parse_usec, &u->mount.timeout_usec, "Mount" },
3e5235b0 1664 { "DirectoryMode", config_parse_mode, &u->mount.directory_mode, "Mount" },
e537352b 1665 EXEC_CONTEXT_CONFIG_ITEMS(u->mount.exec_context, "Mount"),
034c6ed7 1666
8d567588 1667 { "Where", config_parse_path, &u->automount.where, "Automount" },
1cf18f27 1668 { "DirectoryMode", config_parse_mode, &u->automount.directory_mode, "Automount" },
8d567588 1669
01f78473
LP		 1670 { "What", config_parse_path, &u->swap.parameters_fragment.what, "Swap" },
1671 { "Priority", config_parse_int, &u->swap.parameters_fragment.priority, "Swap" },
1672
03fae018
LP		 1673 { "OnActiveSec", config_parse_timer, &u->timer, "Timer" },
1674 { "OnBootSec", config_parse_timer, &u->timer, "Timer" },
1675 { "OnStartupSec", config_parse_timer, &u->timer, "Timer" },
1676 { "OnUnitActiveSec", config_parse_timer, &u->timer, "Timer" },
1677 { "OnUnitInactiveSec", config_parse_timer, &u->timer, "Timer" },
01f78473 1678 { "Unit", config_parse_timer_unit, &u->timer, "Timer" },
07b0b134 1679
01f78473
LP		 1680 { "PathExists", config_parse_path_spec, &u->path, "Path" },
1681 { "PathChanged", config_parse_path_spec, &u->path, "Path" },
1682 { "DirectoryNotEmpty", config_parse_path_spec, &u->path, "Path" },
1683 { "Unit", config_parse_path_unit, &u->path, "Path" },
871d7de4 1684
10e87ee7
LP		 1685 /* The [Install] section is ignored here. */
1686 { "Alias", NULL, NULL, "Install" },
1687 { "WantedBy", NULL, NULL, "Install" },
1688 { "Also", NULL, NULL, "Install" },
1689
3efd4195
LP		 1690 { NULL, NULL, NULL, NULL }
1691 };
1692
034c6ed7 1693#undef EXEC_CONTEXT_CONFIG_ITEMS
42f4e3c4 1694
10e87ee7 1695 const char *sections[4];
0301abf4 1696 int r;
87f0e418 1697 Set *symlink_names;
23a177ef
LP		 1698 FILE *f = NULL;
1699 char *filename = NULL, *id = NULL;
1700 Unit *merged;
45fb0699 1701 struct stat st;
23a177ef 1702
e537352b
LP		 1703 if (!u) {
1704 /* Dirty dirty hack. */
1705 dump_items((FILE*) path, items);
1706 return 0;
1707 }
1708
23a177ef 1709 assert(u);
e537352b 1710 assert(path);
3efd4195 1711
09477267 1712 sections[0] = "Unit";
87f0e418 1713 sections[1] = section_table[u->meta.type];
10e87ee7
LP		 1714 sections[2] = "Install";
1715 sections[3] = NULL;
42f4e3c4 1716
87f0e418
LP		 1717 if (!(symlink_names = set_new(string_hash_func, string_compare_func)))
1718 return -ENOMEM;
3efd4195 1719
036643a2
LP		 1720 if (path_is_absolute(path)) {
1721
1722 if (!(filename = strdup(path))) {
1723 r = -ENOMEM;
1724 goto finish;
1725 }
1726
1727 if ((r = open_follow(&filename, &f, symlink_names, &id)) < 0) {
1728 free(filename);
1729 filename = NULL;
1730
1731 if (r != -ENOENT)
1732 goto finish;
1733 }
1734
1735 } else {
1736 char **p;
1737
84e3543e 1738 STRV_FOREACH(p, u->meta.manager->lookup_paths.unit_path) {
036643a2
LP		 1739
1740 /* Instead of opening the path right away, we manually
1741 * follow all symlinks and add their name to our unit
1742 * name set while doing so */
1743 if (!(filename = path_make_absolute(path, *p))) {
1744 r = -ENOMEM;
1745 goto finish;
1746 }
1747
fe51822e
LP		 1748 if (u->meta.manager->unit_path_cache &&
1749 !set_get(u->meta.manager->unit_path_cache, filename))
1750 r = -ENOENT;
1751 else
1752 r = open_follow(&filename, &f, symlink_names, &id);
1753
1754 if (r < 0) {
036643a2
LP		 1755 char *sn;
1756
1757 free(filename);
1758 filename = NULL;
1759
1760 if (r != -ENOENT)
1761 goto finish;
1762
1763 /* Empty the symlink names for the next run */
1764 while ((sn = set_steal_first(symlink_names)))
1765 free(sn);
3efd4195 1766
036643a2
LP		 1767 continue;
1768 }
1769
1770 break;
1771 }
1772 }
034c6ed7 1773
036643a2 1774 if (!filename) {
8f05424d 1775 /* Hmm, no suitable file found? */
23a177ef 1776 r = 0;
0301abf4
LP		 1777 goto finish;
1778 }
87f0e418 1779
23a177ef
LP		 1780 merged = u;
1781 if ((r = merge_by_names(&merged, symlink_names, id)) < 0)
0301abf4 1782 goto finish;
87f0e418 1783
23a177ef 1784 if (merged != u) {
e537352b 1785 u->meta.load_state = UNIT_MERGED;
23a177ef
LP		 1786 r = 0;
1787 goto finish;
034c6ed7
LP		 1788 }
1789
45fb0699
LP		 1790 zero(st);
1791 if (fstat(fileno(f), &st) < 0) {
1792 r = -errno;
1793 goto finish;
1794 }
1795
23a177ef 1796 /* Now, parse the file contents */
10e87ee7 1797 if ((r = config_parse(filename, f, sections, items, false, u)) < 0)
23a177ef 1798 goto finish;
b08d03ff 1799
6be1e7d5
LP		 1800 free(u->meta.fragment_path);
1801 u->meta.fragment_path = filename;
0301abf4 1802 filename = NULL;
87f0e418 1803
45fb0699
LP		 1804 u->meta.fragment_mtime = timespec_load(&st.st_mtim);
1805
e537352b 1806 u->meta.load_state = UNIT_LOADED;
23a177ef 1807 r = 0;
87f0e418
LP		 1808
1809finish:
53ec43c6 1810 set_free_free(symlink_names);
0301abf4
LP		 1811 free(filename);
1812
23a177ef
LP		 1813 if (f)
1814 fclose(f);
1815
0301abf4
LP		 1816 return r;
1817}
1818
e537352b 1819int unit_load_fragment(Unit *u) {
23a177ef 1820 int r;
294d81f1
LP		 1821 Iterator i;
1822 const char *t;
0301abf4
LP		 1823
1824 assert(u);
294d81f1
LP		 1825 assert(u->meta.load_state == UNIT_STUB);
1826 assert(u->meta.id);
23a177ef 1827
294d81f1
LP		 1828 /* First, try to find the unit under its id. We always look
1829 * for unit files in the default directories, to make it easy
1830 * to override things by placing things in /etc/systemd/system */
1831 if ((r = load_from_path(u, u->meta.id)) < 0)
1832 return r;
1833
1834 /* Try to find an alias we can load this with */
1835 if (u->meta.load_state == UNIT_STUB)
1836 SET_FOREACH(t, u->meta.names, i) {
1837
1838 if (t == u->meta.id)
1839 continue;
1840
1841 if ((r = load_from_path(u, t)) < 0)
1842 return r;
1843
1844 if (u->meta.load_state != UNIT_STUB)
1845 break;
1846 }
23a177ef 1847
294d81f1 1848 /* And now, try looking for it under the suggested (originally linked) path */
6ccb1b44
LP		 1849 if (u->meta.load_state == UNIT_STUB && u->meta.fragment_path) {
1850
e537352b 1851 if ((r = load_from_path(u, u->meta.fragment_path)) < 0)
23a177ef 1852 return r;
0301abf4 1853
6ccb1b44
LP		 1854 if (u->meta.load_state == UNIT_STUB) {
1855 /* Hmm, this didn't work? Then let's get rid
1856 * of the fragment path stored for us, so that
1857 * we don't point to an invalid location. */
1858 free(u->meta.fragment_path);
1859 u->meta.fragment_path = NULL;
1860 }
1861 }
1862
294d81f1
LP		 1863 /* Look for a template */
1864 if (u->meta.load_state == UNIT_STUB && u->meta.instance) {
1865 char *k;
1866
1867 if (!(k = unit_name_template(u->meta.id)))
1868 return -ENOMEM;
1869
1870 r = load_from_path(u, k);
1871 free(k);
0301abf4 1872
294d81f1 1873 if (r < 0)
9e2f7c11 1874 return r;
890f434c 1875
e537352b 1876 if (u->meta.load_state == UNIT_STUB)
23a177ef 1877 SET_FOREACH(t, u->meta.names, i) {
87f0e418 1878
9e2f7c11 1879 if (t == u->meta.id)
23a177ef 1880 continue;
071830ff 1881
294d81f1
LP		 1882 if (!(k = unit_name_template(t)))
1883 return -ENOMEM;
1884
1885 r = load_from_path(u, k);
1886 free(k);
1887
1888 if (r < 0)
23a177ef 1889 return r;
890f434c 1890
e537352b 1891 if (u->meta.load_state != UNIT_STUB)
23a177ef
LP		 1892 break;
1893 }
071830ff
LP		 1894 }
1895
23a177ef 1896 return 0;
3efd4195 1897}
e537352b
LP		 1898
1899void unit_dump_config_items(FILE *f) {
1900 /* OK, this wins a prize for extreme ugliness. */
1901
1902 load_from_path(NULL, (const void*) f);
1903}
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