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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) {
f90cf44c 436 if (strncmp(w, ";", MAX(l, 1U)) == 0)
61e5d8ed 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 446 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
f90cf44c 447 if (strncmp(w, ";", MAX(l, 1U)) == 0)
61e5d8ed
LP		 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
2ba545f1
LP		 1005static int config_parse_fsck_passno(
1006 const char *filename,
1007 unsigned line,
1008 const char *section,
1009 const char *lvalue,
1010 const char *rvalue,
1011 void *data,
1012 void *userdata) {
1013
1014 int *passno = data;
1015 int r, i;
1016
1017 assert(filename);
1018 assert(lvalue);
1019 assert(rvalue);
1020 assert(data);
1021
1022 if ((r = safe_atoi(rvalue, &i)) < 0 || i < 0) {
1023 log_error("[%s:%u] Failed to parse fsck pass number, ignoring: %s", filename, line, rvalue);
1024 return 0;
1025 }
1026
1027 *passno = (int) i;
1028 return 0;
1029}
1030
487393e9 1031static DEFINE_CONFIG_PARSE_ENUM(config_parse_kill_mode, kill_mode, KillMode, "Failed to parse kill mode");
50159e6a 1032
2e22afe9
LP		 1033static int config_parse_kill_signal(
1034 const char *filename,
1035 unsigned line,
1036 const char *section,
1037 const char *lvalue,
1038 const char *rvalue,
1039 void *data,
1040 void *userdata) {
1041
1042 int *sig = data;
1043 int r;
1044
1045 assert(filename);
1046 assert(lvalue);
1047 assert(rvalue);
1048 assert(sig);
1049
8a0867d6 1050 if ((r = signal_from_string_try_harder(rvalue)) <= 0) {
c0b34696
LP		 1051 log_error("[%s:%u] Failed to parse kill signal, ignoring: %s", filename, line, rvalue);
1052 return 0;
2e22afe9
LP		 1053 }
1054
1055 *sig = r;
1056 return 0;
1057}
1058
15ae422b
LP		 1059static int config_parse_mount_flags(
1060 const char *filename,
1061 unsigned line,
1062 const char *section,
1063 const char *lvalue,
1064 const char *rvalue,
1065 void *data,
1066 void *userdata) {
1067
1068 ExecContext *c = data;
1069 char *w;
1070 size_t l;
1071 char *state;
1072 unsigned long flags = 0;
1073
1074 assert(filename);
1075 assert(lvalue);
1076 assert(rvalue);
1077 assert(data);
1078
f60f22df 1079 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
f90cf44c 1080 if (strncmp(w, "shared", MAX(l, 6U)) == 0)
15ae422b 1081 flags |= MS_SHARED;
f90cf44c 1082 else if (strncmp(w, "slave", MAX(l, 5U)) == 0)
15ae422b 1083 flags |= MS_SLAVE;
f90cf44c 1084 else if (strncmp(w, "private", MAX(l, 7U)) == 0)
15ae422b
LP		 1085 flags |= MS_PRIVATE;
1086 else {
c0b34696
LP		 1087 log_error("[%s:%u] Failed to parse mount flags, ignoring: %s", filename, line, rvalue);
1088 return 0;
15ae422b
LP		 1089 }
1090 }
1091
1092 c->mount_flags = flags;
1093 return 0;
1094}
1095
871d7de4
LP		 1096static int config_parse_timer(
1097 const char *filename,
1098 unsigned line,
1099 const char *section,
1100 const char *lvalue,
1101 const char *rvalue,
1102 void *data,
1103 void *userdata) {
1104
1105 Timer *t = data;
1106 usec_t u;
1107 int r;
1108 TimerValue *v;
1109 TimerBase b;
1110
1111 assert(filename);
1112 assert(lvalue);
1113 assert(rvalue);
1114 assert(data);
1115
1116 if ((b = timer_base_from_string(lvalue)) < 0) {
c0b34696
LP		 1117 log_error("[%s:%u] Failed to parse timer base, ignoring: %s", filename, line, lvalue);
1118 return 0;
871d7de4
LP		 1119 }
1120
1121 if ((r = parse_usec(rvalue, &u)) < 0) {
c0b34696
LP		 1122 log_error("[%s:%u] Failed to parse timer value, ignoring: %s", filename, line, rvalue);
1123 return 0;
871d7de4
LP		 1124 }
1125
1126 if (!(v = new0(TimerValue, 1)))
1127 return -ENOMEM;
1128
1129 v->base = b;
1130 v->value = u;
1131
1132 LIST_PREPEND(TimerValue, value, t->values, v);
1133
1134 return 0;
1135}
1136
1137static int config_parse_timer_unit(
1138 const char *filename,
1139 unsigned line,
1140 const char *section,
1141 const char *lvalue,
1142 const char *rvalue,
1143 void *data,
1144 void *userdata) {
1145
1146 Timer *t = data;
1147 int r;
398ef8ba
LP		 1148 DBusError error;
1149
1150 assert(filename);
1151 assert(lvalue);
1152 assert(rvalue);
1153 assert(data);
1154
1155 dbus_error_init(&error);
871d7de4
LP		 1156
1157 if (endswith(rvalue, ".timer")) {
c0b34696
LP		 1158 log_error("[%s:%u] Unit cannot be of type timer, ignoring: %s", filename, line, rvalue);
1159 return 0;
871d7de4
LP		 1160 }
1161
398ef8ba 1162 if ((r = manager_load_unit(t->meta.manager, rvalue, NULL, NULL, &t->unit)) < 0) {
c0b34696 1163 log_error("[%s:%u] Failed to load unit %s, ignoring: %s", filename, line, rvalue, bus_error(&error, r));
398ef8ba 1164 dbus_error_free(&error);
c0b34696 1165 return 0;
871d7de4
LP		 1166 }
1167
1168 return 0;
1169}
1170
01f78473
LP		 1171static int config_parse_path_spec(
1172 const char *filename,
1173 unsigned line,
1174 const char *section,
1175 const char *lvalue,
1176 const char *rvalue,
1177 void *data,
1178 void *userdata) {
1179
1180 Path *p = data;
1181 PathSpec *s;
1182 PathType b;
1183
1184 assert(filename);
1185 assert(lvalue);
1186 assert(rvalue);
1187 assert(data);
1188
1189 if ((b = path_type_from_string(lvalue)) < 0) {
c0b34696
LP		 1190 log_error("[%s:%u] Failed to parse path type, ignoring: %s", filename, line, lvalue);
1191 return 0;
01f78473
LP		 1192 }
1193
1194 if (!path_is_absolute(rvalue)) {
c0b34696
LP		 1195 log_error("[%s:%u] Path is not absolute, ignoring: %s", filename, line, rvalue);
1196 return 0;
01f78473
LP		 1197 }
1198
1199 if (!(s = new0(PathSpec, 1)))
1200 return -ENOMEM;
1201
1202 if (!(s->path = strdup(rvalue))) {
1203 free(s);
1204 return -ENOMEM;
1205 }
1206
1207 path_kill_slashes(s->path);
1208
1209 s->type = b;
1210 s->inotify_fd = -1;
1211
1212 LIST_PREPEND(PathSpec, spec, p->specs, s);
1213
1214 return 0;
1215}
1216
1217static int config_parse_path_unit(
1218 const char *filename,
1219 unsigned line,
1220 const char *section,
1221 const char *lvalue,
1222 const char *rvalue,
1223 void *data,
1224 void *userdata) {
1225
1226 Path *t = data;
1227 int r;
398ef8ba
LP		 1228 DBusError error;
1229
1230 assert(filename);
1231 assert(lvalue);
1232 assert(rvalue);
1233 assert(data);
1234
1235 dbus_error_init(&error);
01f78473
LP		 1236
1237 if (endswith(rvalue, ".path")) {
c0b34696
LP		 1238 log_error("[%s:%u] Unit cannot be of type path, ignoring: %s", filename, line, rvalue);
1239 return 0;
01f78473
LP		 1240 }
1241
398ef8ba 1242 if ((r = manager_load_unit(t->meta.manager, rvalue, NULL, &error, &t->unit)) < 0) {
c0b34696 1243 log_error("[%s:%u] Failed to load unit %s, ignoring: %s", filename, line, rvalue, bus_error(&error, r));
398ef8ba 1244 dbus_error_free(&error);
c0b34696 1245 return 0;
01f78473
LP		 1246 }
1247
1248 return 0;
1249}
1250
d9ff321a
LP		 1251static int config_parse_socket_service(
1252 const char *filename,
1253 unsigned line,
1254 const char *section,
1255 const char *lvalue,
1256 const char *rvalue,
1257 void *data,
1258 void *userdata) {
1259
1260 Socket *s = data;
1261 int r;
1262 DBusError error;
1263
1264 assert(filename);
1265 assert(lvalue);
1266 assert(rvalue);
1267 assert(data);
1268
1269 dbus_error_init(&error);
1270
f976f3f6
LP		 1271 if (!endswith(rvalue, ".service")) {
1272 log_error("[%s:%u] Unit must be of type service, ignoring: %s", filename, line, rvalue);
d9ff321a
LP		 1273 return 0;
1274 }
1275
1276 if ((r = manager_load_unit(s->meta.manager, rvalue, NULL, &error, (Unit**) &s->service)) < 0) {
1277 log_error("[%s:%u] Failed to load unit %s, ignoring: %s", filename, line, rvalue, bus_error(&error, r));
1278 dbus_error_free(&error);
1279 return 0;
1280 }
1281
1282 return 0;
1283}
1284
f976f3f6
LP		 1285static int config_parse_service_sockets(
1286 const char *filename,
1287 unsigned line,
1288 const char *section,
1289 const char *lvalue,
1290 const char *rvalue,
1291 void *data,
1292 void *userdata) {
1293
1294 Service *s = data;
1295 int r;
1296 DBusError error;
1297 char *state, *w;
1298 size_t l;
1299
1300 assert(filename);
1301 assert(lvalue);
1302 assert(rvalue);
1303 assert(data);
1304
1305 dbus_error_init(&error);
1306
1307 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
1308 char *t;
1309 Unit *sock;
1310
1311 if (!(t = strndup(w, l)))
1312 return -ENOMEM;
1313
1314 if (!endswith(t, ".socket")) {
1315 log_error("[%s:%u] Unit must be of type socket, ignoring: %s", filename, line, rvalue);
1316 free(t);
1317 continue;
1318 }
1319
1320 r = manager_load_unit(s->meta.manager, t, NULL, &error, &sock);
1321 free(t);
1322
1323 if (r < 0) {
1324 log_error("[%s:%u] Failed to load unit %s, ignoring: %s", filename, line, rvalue, bus_error(&error, r));
1325 dbus_error_free(&error);
1326 continue;
1327 }
1328
1329 if ((r = set_ensure_allocated(&s->configured_sockets, trivial_hash_func, trivial_compare_func)) < 0)
1330 return r;
1331
1332 if ((r = set_put(s->configured_sockets, sock)) < 0)
1333 return r;
1334 }
1335
1336 return 0;
1337}
1338
ddb26e18
LP		 1339static int config_parse_env_file(
1340 const char *filename,
1341 unsigned line,
1342 const char *section,
1343 const char *lvalue,
1344 const char *rvalue,
1345 void *data,
1346 void *userdata) {
1347
1348 FILE *f;
1349 int r;
1350 char ***env = data;
afe4bfe2 1351 bool ignore = false;
ddb26e18
LP		 1352
1353 assert(filename);
1354 assert(lvalue);
1355 assert(rvalue);
1356 assert(data);
1357
afe4bfe2
LP		 1358 if (rvalue[0] == '-') {
1359 ignore = true;
1360 rvalue++;
1361 }
1362
1363 if (!path_is_absolute(rvalue)) {
1364 log_error("[%s:%u] Path '%s' is not absolute, ignoring.", filename, line, rvalue);
1365 return 0;
1366 }
1367
ddb26e18 1368 if (!(f = fopen(rvalue, "re"))) {
afe4bfe2
LP		 1369 if (!ignore)
1370 log_error("[%s:%u] Failed to open environment file '%s', ignoring: %m", filename, line, rvalue);
c0b34696 1371 return 0;
ddb26e18
LP		 1372 }
1373
1374 while (!feof(f)) {
5f7c426e 1375 char l[LINE_MAX], *p, *u;
ddb26e18
LP		 1376 char **t;
1377
1378 if (!fgets(l, sizeof(l), f)) {
1379 if (feof(f))
1380 break;
1381
1382 r = -errno;
c0b34696
LP		 1383 log_error("[%s:%u] Failed to read environment file '%s', ignoring: %m", filename, line, rvalue);
1384 r = 0;
ddb26e18
LP		 1385 goto finish;
1386 }
1387
1388 p = strstrip(l);
1389
1390 if (!*p)
1391 continue;
1392
1393 if (strchr(COMMENTS, *p))
1394 continue;
1395
5f7c426e
LP		 1396 if (!(u = normalize_env_assignment(p))) {
1397 log_error("Out of memory");
1398 r = -ENOMEM;
1399 goto finish;
1400 }
1401
a6ff950e 1402 t = strv_append(*env, u);
5f7c426e
LP		 1403 free(u);
1404
1405 if (!t) {
1406 log_error("Out of memory");
1407 r = -ENOMEM;
1408 goto finish;
1409 }
1410
ddb26e18
LP		 1411 strv_free(*env);
1412 *env = t;
1413 }
1414
1415 r = 0;
1416
1417finish:
1418 if (f)
1419 fclose(f);
1420
1421 return r;
1422}
1423
4fd5948e
LP		 1424static int config_parse_ip_tos(
1425 const char *filename,
1426 unsigned line,
1427 const char *section,
1428 const char *lvalue,
1429 const char *rvalue,
1430 void *data,
1431 void *userdata) {
1432
1433 int *ip_tos = data, x;
1434 int r;
1435
1436 assert(filename);
1437 assert(lvalue);
1438 assert(rvalue);
1439 assert(data);
1440
1441 if ((x = ip_tos_from_string(rvalue)) < 0)
1442 if ((r = safe_atoi(rvalue, &x)) < 0) {
c0b34696
LP		 1443 log_error("[%s:%u] Failed to parse IP TOS value, ignoring: %s", filename, line, rvalue);
1444 return 0;
4fd5948e
LP		 1445 }
1446
1447 *ip_tos = x;
1448 return 0;
1449}
1450
52661efd
LP		 1451static int config_parse_condition_path(
1452 const char *filename,
1453 unsigned line,
1454 const char *section,
1455 const char *lvalue,
1456 const char *rvalue,
1457 void *data,
1458 void *userdata) {
1459
1460 Unit *u = data;
1461 bool negate;
1462 Condition *c;
1463
1464 assert(filename);
1465 assert(lvalue);
1466 assert(rvalue);
1467 assert(data);
1468
1469 if ((negate = rvalue[0] == '!'))
1470 rvalue++;
1471
1472 if (!path_is_absolute(rvalue)) {
d257ddef 1473 log_error("[%s:%u] Path in condition not absolute, ignoring: %s", filename, line, rvalue);
52661efd
LP		 1474 return 0;
1475 }
1476
36af55d9
LP		 1477 if (!(c = condition_new(streq(lvalue, "ConditionPathExists") ? CONDITION_PATH_EXISTS : CONDITION_DIRECTORY_NOT_EMPTY,
1478 rvalue, negate)))
52661efd
LP		 1479 return -ENOMEM;
1480
1481 LIST_PREPEND(Condition, conditions, u->meta.conditions, c);
1482 return 0;
1483}
1484
1485static int config_parse_condition_kernel(
1486 const char *filename,
1487 unsigned line,
1488 const char *section,
1489 const char *lvalue,
1490 const char *rvalue,
1491 void *data,
1492 void *userdata) {
1493
1494 Unit *u = data;
1495 bool negate;
1496 Condition *c;
1497
1498 assert(filename);
1499 assert(lvalue);
1500 assert(rvalue);
1501 assert(data);
1502
1503 if ((negate = rvalue[0] == '!'))
1504 rvalue++;
1505
1506 if (!(c = condition_new(CONDITION_KERNEL_COMMAND_LINE, rvalue, negate)))
1507 return -ENOMEM;
1508
1509 LIST_PREPEND(Condition, conditions, u->meta.conditions, c);
1510 return 0;
1511}
1512
d257ddef
LP		 1513static int config_parse_condition_null(
1514 const char *filename,
1515 unsigned line,
1516 const char *section,
1517 const char *lvalue,
1518 const char *rvalue,
1519 void *data,
1520 void *userdata) {
1521
1522 Unit *u = data;
1523 Condition *c;
1524 bool negate;
1525 int b;
1526
1527 assert(filename);
1528 assert(lvalue);
1529 assert(rvalue);
1530 assert(data);
1531
1532 if ((negate = rvalue[0] == '!'))
1533 rvalue++;
1534
1535 if ((b = parse_boolean(rvalue)) < 0) {
1536 log_error("[%s:%u] Failed to parse boolean value in condition, ignoring: %s", filename, line, rvalue);
1537 return 0;
1538 }
1539
1540 if (!b)
1541 negate = !negate;
1542
1543 if (!(c = condition_new(CONDITION_NULL, NULL, negate)))
1544 return -ENOMEM;
1545
1546 LIST_PREPEND(Condition, conditions, u->meta.conditions, c);
1547 return 0;
1548}
1549
487393e9 1550static DEFINE_CONFIG_PARSE_ENUM(config_parse_notify_access, notify_access, NotifyAccess, "Failed to parse notify access specifier");
c952c6ec 1551
071830ff 1552#define FOLLOW_MAX 8
87f0e418 1553
9e2f7c11 1554static int open_follow(char **filename, FILE **_f, Set *names, char **_final) {
0301abf4 1555 unsigned c = 0;
87f0e418
LP		 1556 int fd, r;
1557 FILE *f;
0301abf4 1558 char *id = NULL;
87f0e418
LP		 1559
1560 assert(filename);
1561 assert(*filename);
1562 assert(_f);
1563 assert(names);
1564
0301abf4
LP		 1565 /* This will update the filename pointer if the loaded file is
1566 * reached by a symlink. The old string will be freed. */
87f0e418 1567
0301abf4 1568 for (;;) {
2c7108c4 1569 char *target, *name;
87f0e418 1570
0301abf4
LP		 1571 if (c++ >= FOLLOW_MAX)
1572 return -ELOOP;
1573
b08d03ff
LP		 1574 path_kill_slashes(*filename);
1575
87f0e418 1576 /* Add the file name we are currently looking at to
8f05424d
LP		 1577 * the names of this unit, but only if it is a valid
1578 * unit name. */
0301abf4 1579 name = file_name_from_path(*filename);
87f0e418 1580
b9c0d441 1581 if (unit_name_is_valid(name, false)) {
8f05424d
LP		 1582 if (!(id = set_get(names, name))) {
1583
1584 if (!(id = strdup(name)))
1585 return -ENOMEM;
87f0e418 1586
8f05424d
LP		 1587 if ((r = set_put(names, id)) < 0) {
1588 free(id);
1589 return r;
1590 }
87f0e418 1591 }
87f0e418
LP		 1592 }
1593
0301abf4
LP		 1594 /* Try to open the file name, but don't if its a symlink */
1595 if ((fd = open(*filename, O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW)) >= 0)
87f0e418
LP		 1596 break;
1597
0301abf4
LP		 1598 if (errno != ELOOP)
1599 return -errno;
1600
87f0e418 1601 /* Hmm, so this is a symlink. Let's read the name, and follow it manually */
2c7108c4 1602 if ((r = readlink_and_make_absolute(*filename, &target)) < 0)
0301abf4 1603 return r;
87f0e418 1604
0301abf4 1605 free(*filename);
2c7108c4 1606 *filename = target;
87f0e418
LP		 1607 }
1608
8f05424d 1609 if (!(f = fdopen(fd, "re"))) {
87f0e418 1610 r = -errno;
9e2f7c11 1611 close_nointr_nofail(fd);
0301abf4 1612 return r;
87f0e418
LP		 1613 }
1614
1615 *_f = f;
9e2f7c11 1616 *_final = id;
0301abf4 1617 return 0;
87f0e418
LP		 1618}
1619
23a177ef
LP		 1620static int merge_by_names(Unit **u, Set *names, const char *id) {
1621 char *k;
1622 int r;
1623
1624 assert(u);
1625 assert(*u);
1626 assert(names);
1627
1628 /* Let's try to add in all symlink names we found */
1629 while ((k = set_steal_first(names))) {
1630
1631 /* First try to merge in the other name into our
1632 * unit */
1633 if ((r = unit_merge_by_name(*u, k)) < 0) {
1634 Unit *other;
1635
1636 /* Hmm, we couldn't merge the other unit into
1637 * ours? Then let's try it the other way
1638 * round */
1639
1640 other = manager_get_unit((*u)->meta.manager, k);
1641 free(k);
1642
1643 if (other)
1644 if ((r = unit_merge(other, *u)) >= 0) {
1645 *u = other;
1646 return merge_by_names(u, names, NULL);
1647 }
1648
1649 return r;
1650 }
1651
1652 if (id == k)
1653 unit_choose_id(*u, id);
1654
1655 free(k);
1656 }
1657
1658 return 0;
1659}
1660
e537352b
LP		 1661static void dump_items(FILE *f, const ConfigItem *items) {
1662 const ConfigItem *i;
1663 const char *prev_section = NULL;
1664 bool not_first = false;
1665
1666 struct {
1667 ConfigParserCallback callback;
1668 const char *rvalue;
1669 } table[] = {
1670 { config_parse_int, "INTEGER" },
1671 { config_parse_unsigned, "UNSIGNED" },
1672 { config_parse_size, "SIZE" },
1673 { config_parse_bool, "BOOLEAN" },
1674 { config_parse_string, "STRING" },
1675 { config_parse_path, "PATH" },
1676 { config_parse_strv, "STRING [...]" },
1677 { config_parse_nice, "NICE" },
dd6c17b1 1678 { config_parse_oom_score_adjust, "OOMSCOREADJUST" },
e537352b
LP		 1679 { config_parse_io_class, "IOCLASS" },
1680 { config_parse_io_priority, "IOPRIORITY" },
1681 { config_parse_cpu_sched_policy, "CPUSCHEDPOLICY" },
1682 { config_parse_cpu_sched_prio, "CPUSCHEDPRIO" },
1683 { config_parse_cpu_affinity, "CPUAFFINITY" },
1684 { config_parse_mode, "MODE" },
ddb26e18 1685 { config_parse_env_file, "FILE" },
e537352b
LP		 1686 { config_parse_output, "OUTPUT" },
1687 { config_parse_input, "INPUT" },
1688 { config_parse_facility, "FACILITY" },
1689 { config_parse_level, "LEVEL" },
1690 { config_parse_capabilities, "CAPABILITIES" },
1691 { config_parse_secure_bits, "SECUREBITS" },
1692 { config_parse_bounding_set, "BOUNDINGSET" },
03fae018 1693 { config_parse_timer_slack_nsec, "TIMERSLACK" },
e537352b
LP		 1694 { config_parse_limit, "LIMIT" },
1695 { config_parse_cgroup, "CGROUP [...]" },
1696 { config_parse_deps, "UNIT [...]" },
1697 { config_parse_names, "UNIT [...]" },
1698 { config_parse_exec, "PATH [ARGUMENT [...]]" },
1699 { config_parse_service_type, "SERVICETYPE" },
1700 { config_parse_service_restart, "SERVICERESTART" },
07459bb6 1701#ifdef HAVE_SYSV_COMPAT
e537352b 1702 { config_parse_sysv_priority, "SYSVPRIORITY" },
07459bb6
FF		 1703#else
1704 { config_parse_warn_compat, "NOTSUPPORTED" },
1705#endif
e537352b 1706 { config_parse_kill_mode, "KILLMODE" },
2e22afe9 1707 { config_parse_kill_signal, "SIGNAL" },
e537352b
LP		 1708 { config_parse_listen, "SOCKET [...]" },
1709 { config_parse_socket_bind, "SOCKETBIND" },
93ef5e80
LP		 1710 { config_parse_bindtodevice, "NETWORKINTERFACE" },
1711 { config_parse_usec, "SECONDS" },
1712 { config_parse_path_strv, "PATH [...]" },
932921b5 1713 { config_parse_mount_flags, "MOUNTFLAG [...]" },
f2d3769a 1714 { config_parse_string_printf, "STRING" },
871d7de4
LP		 1715 { config_parse_timer, "TIMER" },
1716 { config_parse_timer_unit, "NAME" },
c952c6ec
LP		 1717 { config_parse_path_spec, "PATH" },
1718 { config_parse_path_unit, "UNIT" },
8b03daeb
LP		 1719 { config_parse_notify_access, "ACCESS" },
1720 { config_parse_ip_tos, "TOS" },
52661efd
LP		 1721 { config_parse_condition_path, "CONDITION" },
1722 { config_parse_condition_kernel, "CONDITION" },
d257ddef 1723 { config_parse_condition_null, "CONDITION" },
e537352b
LP		 1724 };
1725
1726 assert(f);
1727 assert(items);
1728
1729 for (i = items; i->lvalue; i++) {
1730 unsigned j;
1731 const char *rvalue = "OTHER";
1732
1733 if (!streq_ptr(i->section, prev_section)) {
1734 if (!not_first)
1735 not_first = true;
1736 else
1737 fputc('\n', f);
1738
1739 fprintf(f, "[%s]\n", i->section);
1740 prev_section = i->section;
1741 }
1742
1743 for (j = 0; j < ELEMENTSOF(table); j++)
1744 if (i->parse == table[j].callback) {
1745 rvalue = table[j].rvalue;
1746 break;
1747 }
1748
1749 fprintf(f, "%s=%s\n", i->lvalue, rvalue);
1750 }
1751}
1752
1753static int load_from_path(Unit *u, const char *path) {
87f0e418
LP		 1754
1755 static const char* const section_table[_UNIT_TYPE_MAX] = {
1756 [UNIT_SERVICE] = "Service",
1757 [UNIT_TIMER] = "Timer",
1758 [UNIT_SOCKET] = "Socket",
1759 [UNIT_TARGET] = "Target",
1760 [UNIT_DEVICE] = "Device",
1761 [UNIT_MOUNT] = "Mount",
1762 [UNIT_AUTOMOUNT] = "Automount",
07b0b134 1763 [UNIT_SNAPSHOT] = "Snapshot",
01f78473
LP		 1764 [UNIT_SWAP] = "Swap",
1765 [UNIT_PATH] = "Path"
42f4e3c4
LP		 1766 };
1767
034c6ed7 1768#define EXEC_CONTEXT_CONFIG_ITEMS(context, section) \
9eba9da4
LP		 1769 { "WorkingDirectory", config_parse_path, &(context).working_directory, section }, \
1770 { "RootDirectory", config_parse_path, &(context).root_directory, section }, \
f2d3769a
LP		 1771 { "User", config_parse_string_printf, &(context).user, section }, \
1772 { "Group", config_parse_string_printf, &(context).group, section }, \
1c01f82b 1773 { "SupplementaryGroups", config_parse_strv, &(context).supplementary_groups, section }, \
fb33a393 1774 { "Nice", config_parse_nice, &(context), section }, \
dd6c17b1 1775 { "OOMScoreAdjust", config_parse_oom_score_adjust,&(context), section }, \
9eba9da4 1776 { "IOSchedulingClass", config_parse_io_class, &(context), section }, \
94f04347
LP		 1777 { "IOSchedulingPriority", config_parse_io_priority, &(context), section }, \
1778 { "CPUSchedulingPolicy", config_parse_cpu_sched_policy,&(context), section }, \
1779 { "CPUSchedulingPriority", config_parse_cpu_sched_prio, &(context), section }, \
38b48754 1780 { "CPUSchedulingResetOnFork", config_parse_bool, &(context).cpu_sched_reset_on_fork, section }, \
94f04347 1781 { "CPUAffinity", config_parse_cpu_affinity, &(context), section }, \
b5a0699f 1782 { "UMask", config_parse_mode, &(context).umask, section }, \
071830ff 1783 { "Environment", config_parse_strv, &(context).environment, section }, \
ddb26e18 1784 { "EnvironmentFile", config_parse_env_file, &(context).environment, section }, \
80876c20
LP		 1785 { "StandardInput", config_parse_input, &(context).std_input, section }, \
1786 { "StandardOutput", config_parse_output, &(context).std_output, section }, \
a4ddf827 1787 { "StandardError", config_parse_output, &(context).std_error, section }, \
80876c20 1788 { "TTYPath", config_parse_path, &(context).tty_path, section }, \
f2d3769a 1789 { "SyslogIdentifier", config_parse_string_printf, &(context).syslog_identifier, section }, \
071830ff 1790 { "SyslogFacility", config_parse_facility, &(context).syslog_priority, section }, \
94f04347 1791 { "SyslogLevel", config_parse_level, &(context).syslog_priority, section }, \
74922904 1792 { "SyslogLevelPrefix", config_parse_bool, &(context).syslog_level_prefix, section }, \
94f04347
LP		 1793 { "Capabilities", config_parse_capabilities, &(context), section }, \
1794 { "SecureBits", config_parse_secure_bits, &(context), section }, \
1795 { "CapabilityBoundingSetDrop", config_parse_bounding_set, &(context), section }, \
03fae018 1796 { "TimerSlackNSec", config_parse_timer_slack_nsec,&(context), section }, \
94f04347
LP		 1797 { "LimitCPU", config_parse_limit, &(context).rlimit[RLIMIT_CPU], section }, \
1798 { "LimitFSIZE", config_parse_limit, &(context).rlimit[RLIMIT_FSIZE], section }, \
1799 { "LimitDATA", config_parse_limit, &(context).rlimit[RLIMIT_DATA], section }, \
1800 { "LimitSTACK", config_parse_limit, &(context).rlimit[RLIMIT_STACK], section }, \
1801 { "LimitCORE", config_parse_limit, &(context).rlimit[RLIMIT_CORE], section }, \
1802 { "LimitRSS", config_parse_limit, &(context).rlimit[RLIMIT_RSS], section }, \
1803 { "LimitNOFILE", config_parse_limit, &(context).rlimit[RLIMIT_NOFILE], section }, \
1804 { "LimitAS", config_parse_limit, &(context).rlimit[RLIMIT_AS], section }, \
1805 { "LimitNPROC", config_parse_limit, &(context).rlimit[RLIMIT_NPROC], section }, \
1806 { "LimitMEMLOCK", config_parse_limit, &(context).rlimit[RLIMIT_MEMLOCK], section }, \
1807 { "LimitLOCKS", config_parse_limit, &(context).rlimit[RLIMIT_LOCKS], section }, \
1808 { "LimitSIGPENDING", config_parse_limit, &(context).rlimit[RLIMIT_SIGPENDING], section }, \
1809 { "LimitMSGQUEUE", config_parse_limit, &(context).rlimit[RLIMIT_MSGQUEUE], section }, \
1810 { "LimitNICE", config_parse_limit, &(context).rlimit[RLIMIT_NICE], section }, \
1811 { "LimitRTPRIO", config_parse_limit, &(context).rlimit[RLIMIT_RTPRIO], section }, \
451a074f 1812 { "LimitRTTIME", config_parse_limit, &(context).rlimit[RLIMIT_RTTIME], section }, \
15ae422b
LP		 1813 { "ControlGroup", config_parse_cgroup, u, section }, \
1814 { "ReadWriteDirectories", config_parse_path_strv, &(context).read_write_dirs, section }, \
1815 { "ReadOnlyDirectories", config_parse_path_strv, &(context).read_only_dirs, section }, \
1816 { "InaccessibleDirectories",config_parse_path_strv, &(context).inaccessible_dirs, section }, \
1817 { "PrivateTmp", config_parse_bool, &(context).private_tmp, section }, \
df1f0afe 1818 { "MountFlags", config_parse_mount_flags, &(context), section }, \
f2d3769a 1819 { "TCPWrapName", config_parse_string_printf, &(context).tcpwrap_name, section }, \
2e22afe9
LP		 1820 { "PAMName", config_parse_string_printf, &(context).pam_name, section }, \
1821 { "KillMode", config_parse_kill_mode, &(context).kill_mode, section }, \
169c1bda
LP		 1822 { "KillSignal", config_parse_kill_signal, &(context).kill_signal, section }, \
1823 { "UtmpIdentifier", config_parse_string_printf, &(context).utmp_id, section }
034c6ed7 1824
3efd4195 1825 const ConfigItem items[] = {
09477267 1826 { "Names", config_parse_names, u, "Unit" },
f2d3769a 1827 { "Description", config_parse_string_printf, &u->meta.description, "Unit" },
09477267
LP		 1828 { "Requires", config_parse_deps, UINT_TO_PTR(UNIT_REQUIRES), "Unit" },
1829 { "RequiresOverridable", config_parse_deps, UINT_TO_PTR(UNIT_REQUIRES_OVERRIDABLE), "Unit" },
1830 { "Requisite", config_parse_deps, UINT_TO_PTR(UNIT_REQUISITE), "Unit" },
1831 { "RequisiteOverridable", config_parse_deps, UINT_TO_PTR(UNIT_REQUISITE_OVERRIDABLE), "Unit" },
1832 { "Wants", config_parse_deps, UINT_TO_PTR(UNIT_WANTS), "Unit" },
b81884e7 1833 { "BindTo", config_parse_deps, UINT_TO_PTR(UNIT_BIND_TO), "Unit" },
09477267
LP		 1834 { "Conflicts", config_parse_deps, UINT_TO_PTR(UNIT_CONFLICTS), "Unit" },
1835 { "Before", config_parse_deps, UINT_TO_PTR(UNIT_BEFORE), "Unit" },
1836 { "After", config_parse_deps, UINT_TO_PTR(UNIT_AFTER), "Unit" },
45fb0699 1837 { "OnFailure", config_parse_deps, UINT_TO_PTR(UNIT_ON_FAILURE), "Unit" },
09477267 1838 { "StopWhenUnneeded", config_parse_bool, &u->meta.stop_when_unneeded, "Unit" },
b5e9dba8
LP		 1839 { "RefuseManualStart", config_parse_bool, &u->meta.refuse_manual_start, "Unit" },
1840 { "RefuseManualStop", config_parse_bool, &u->meta.refuse_manual_stop, "Unit" },
2528a7a6 1841 { "AllowIsolate", config_parse_bool, &u->meta.allow_isolate, "Unit" },
a40eb732 1842 { "DefaultDependencies", config_parse_bool, &u->meta.default_dependencies, "Unit" },
faf919f1 1843 { "JobTimeoutSec", config_parse_usec, &u->meta.job_timeout, "Unit" },
52661efd 1844 { "ConditionPathExists", config_parse_condition_path, u, "Unit" },
36af55d9 1845 { "ConditionDirectoryNotEmpty", config_parse_condition_path, u, "Unit" },
52661efd 1846 { "ConditionKernelCommandLine", config_parse_condition_kernel, u, "Unit" },
d257ddef 1847 { "ConditionNull", config_parse_condition_null, u, "Unit" },
1c01f82b
LP		 1848
1849 { "PIDFile", config_parse_path, &u->service.pid_file, "Service" },
1850 { "ExecStartPre", config_parse_exec, u->service.exec_command+SERVICE_EXEC_START_PRE, "Service" },
1851 { "ExecStart", config_parse_exec, u->service.exec_command+SERVICE_EXEC_START, "Service" },
1852 { "ExecStartPost", config_parse_exec, u->service.exec_command+SERVICE_EXEC_START_POST, "Service" },
1853 { "ExecReload", config_parse_exec, u->service.exec_command+SERVICE_EXEC_RELOAD, "Service" },
1854 { "ExecStop", config_parse_exec, u->service.exec_command+SERVICE_EXEC_STOP, "Service" },
1855 { "ExecStopPost", config_parse_exec, u->service.exec_command+SERVICE_EXEC_STOP_POST, "Service" },
1856 { "RestartSec", config_parse_usec, &u->service.restart_usec, "Service" },
1857 { "TimeoutSec", config_parse_usec, &u->service.timeout_usec, "Service" },
0d87eb42
LP		 1858 { "Type", config_parse_service_type, &u->service.type, "Service" },
1859 { "Restart", config_parse_service_restart, &u->service.restart, "Service" },
81a2b7ce
LP		 1860 { "PermissionsStartOnly", config_parse_bool, &u->service.permissions_start_only, "Service" },
1861 { "RootDirectoryStartOnly", config_parse_bool, &u->service.root_directory_start_only, "Service" },
02ee865a 1862 { "RemainAfterExit", config_parse_bool, &u->service.remain_after_exit, "Service" },
07459bb6 1863#ifdef HAVE_SYSV_COMPAT
a9a1e00a 1864 { "SysVStartPriority", config_parse_sysv_priority, &u->service.sysv_start_priority, "Service" },
07459bb6 1865#else
f976f3f6 1866 { "SysVStartPriority", config_parse_warn_compat, NULL, "Service" },
07459bb6 1867#endif
b778d555 1868 { "NonBlocking", config_parse_bool, &u->service.exec_context.non_blocking, "Service" },
f2d3769a 1869 { "BusName", config_parse_string_printf, &u->service.bus_name, "Service" },
c952c6ec 1870 { "NotifyAccess", config_parse_notify_access, &u->service.notify_access, "Service" },
f976f3f6 1871 { "Sockets", config_parse_service_sockets, &u->service, "Service" },
2ba545f1 1872 { "FsckPassNo", config_parse_fsck_passno, &u->service.fsck_passno, "Service" },
87f0e418
LP		 1873 EXEC_CONTEXT_CONFIG_ITEMS(u->service.exec_context, "Service"),
1874
1c01f82b
LP		 1875 { "ListenStream", config_parse_listen, &u->socket, "Socket" },
1876 { "ListenDatagram", config_parse_listen, &u->socket, "Socket" },
1877 { "ListenSequentialPacket", config_parse_listen, &u->socket, "Socket" },
1878 { "ListenFIFO", config_parse_listen, &u->socket, "Socket" },
1879 { "BindIPv6Only", config_parse_socket_bind, &u->socket, "Socket" },
1880 { "Backlog", config_parse_unsigned, &u->socket.backlog, "Socket" },
acbb0225 1881 { "BindToDevice", config_parse_bindtodevice, &u->socket, "Socket" },
1c01f82b
LP		 1882 { "ExecStartPre", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_START_PRE, "Socket" },
1883 { "ExecStartPost", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_START_POST, "Socket" },
1884 { "ExecStopPre", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_STOP_PRE, "Socket" },
1885 { "ExecStopPost", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_STOP_POST, "Socket" },
108736d0 1886 { "TimeoutSec", config_parse_usec, &u->socket.timeout_usec, "Socket" },
b5a0699f
LP		 1887 { "DirectoryMode", config_parse_mode, &u->socket.directory_mode, "Socket" },
1888 { "SocketMode", config_parse_mode, &u->socket.socket_mode, "Socket" },
4f2d528d 1889 { "Accept", config_parse_bool, &u->socket.accept, "Socket" },
6cf6bbc2 1890 { "MaxConnections", config_parse_unsigned, &u->socket.max_connections, "Socket" },
4fd5948e
LP		 1891 { "KeepAlive", config_parse_bool, &u->socket.keep_alive, "Socket" },
1892 { "Priority", config_parse_int, &u->socket.priority, "Socket" },
1893 { "ReceiveBuffer", config_parse_size, &u->socket.receive_buffer, "Socket" },
1894 { "SendBuffer", config_parse_size, &u->socket.send_buffer, "Socket" },
1895 { "IPTOS", config_parse_ip_tos, &u->socket.ip_tos, "Socket" },
1896 { "IPTTL", config_parse_int, &u->socket.ip_ttl, "Socket" },
1897 { "Mark", config_parse_int, &u->socket.mark, "Socket" },
1898 { "PipeSize", config_parse_size, &u->socket.pipe_size, "Socket" },
1899 { "FreeBind", config_parse_bool, &u->socket.free_bind, "Socket" },
cebf8b20 1900 { "TCPCongestion", config_parse_string, &u->socket.tcp_congestion, "Socket" },
d9ff321a 1901 { "Service", config_parse_socket_service, &u->socket, "Socket" },
87f0e418
LP		 1902 EXEC_CONTEXT_CONFIG_ITEMS(u->socket.exec_context, "Socket"),
1903
e537352b
LP		 1904 { "What", config_parse_string, &u->mount.parameters_fragment.what, "Mount" },
1905 { "Where", config_parse_path, &u->mount.where, "Mount" },
1906 { "Options", config_parse_string, &u->mount.parameters_fragment.options, "Mount" },
1907 { "Type", config_parse_string, &u->mount.parameters_fragment.fstype, "Mount" },
1908 { "TimeoutSec", config_parse_usec, &u->mount.timeout_usec, "Mount" },
3e5235b0 1909 { "DirectoryMode", config_parse_mode, &u->mount.directory_mode, "Mount" },
e537352b 1910 EXEC_CONTEXT_CONFIG_ITEMS(u->mount.exec_context, "Mount"),
034c6ed7 1911
8d567588 1912 { "Where", config_parse_path, &u->automount.where, "Automount" },
1cf18f27 1913 { "DirectoryMode", config_parse_mode, &u->automount.directory_mode, "Automount" },
8d567588 1914
01f78473
LP		 1915 { "What", config_parse_path, &u->swap.parameters_fragment.what, "Swap" },
1916 { "Priority", config_parse_int, &u->swap.parameters_fragment.priority, "Swap" },
1917
03fae018
LP		 1918 { "OnActiveSec", config_parse_timer, &u->timer, "Timer" },
1919 { "OnBootSec", config_parse_timer, &u->timer, "Timer" },
1920 { "OnStartupSec", config_parse_timer, &u->timer, "Timer" },
1921 { "OnUnitActiveSec", config_parse_timer, &u->timer, "Timer" },
1922 { "OnUnitInactiveSec", config_parse_timer, &u->timer, "Timer" },
01f78473 1923 { "Unit", config_parse_timer_unit, &u->timer, "Timer" },
07b0b134 1924
01f78473
LP		 1925 { "PathExists", config_parse_path_spec, &u->path, "Path" },
1926 { "PathChanged", config_parse_path_spec, &u->path, "Path" },
1927 { "DirectoryNotEmpty", config_parse_path_spec, &u->path, "Path" },
1928 { "Unit", config_parse_path_unit, &u->path, "Path" },
871d7de4 1929
10e87ee7
LP		 1930 /* The [Install] section is ignored here. */
1931 { "Alias", NULL, NULL, "Install" },
1932 { "WantedBy", NULL, NULL, "Install" },
1933 { "Also", NULL, NULL, "Install" },
1934
3efd4195
LP		 1935 { NULL, NULL, NULL, NULL }
1936 };
1937
034c6ed7 1938#undef EXEC_CONTEXT_CONFIG_ITEMS
42f4e3c4 1939
10e87ee7 1940 const char *sections[4];
0301abf4 1941 int r;
87f0e418 1942 Set *symlink_names;
23a177ef
LP		 1943 FILE *f = NULL;
1944 char *filename = NULL, *id = NULL;
1945 Unit *merged;
45fb0699 1946 struct stat st;
23a177ef 1947
e537352b
LP		 1948 if (!u) {
1949 /* Dirty dirty hack. */
1950 dump_items((FILE*) path, items);
1951 return 0;
1952 }
1953
23a177ef 1954 assert(u);
e537352b 1955 assert(path);
3efd4195 1956
09477267 1957 sections[0] = "Unit";
87f0e418 1958 sections[1] = section_table[u->meta.type];
10e87ee7
LP		 1959 sections[2] = "Install";
1960 sections[3] = NULL;
42f4e3c4 1961
87f0e418
LP		 1962 if (!(symlink_names = set_new(string_hash_func, string_compare_func)))
1963 return -ENOMEM;
3efd4195 1964
036643a2
LP		 1965 if (path_is_absolute(path)) {
1966
1967 if (!(filename = strdup(path))) {
1968 r = -ENOMEM;
1969 goto finish;
1970 }
1971
1972 if ((r = open_follow(&filename, &f, symlink_names, &id)) < 0) {
1973 free(filename);
1974 filename = NULL;
1975
1976 if (r != -ENOENT)
1977 goto finish;
1978 }
1979
1980 } else {
1981 char **p;
1982
84e3543e 1983 STRV_FOREACH(p, u->meta.manager->lookup_paths.unit_path) {
036643a2
LP		 1984
1985 /* Instead of opening the path right away, we manually
1986 * follow all symlinks and add their name to our unit
1987 * name set while doing so */
1988 if (!(filename = path_make_absolute(path, *p))) {
1989 r = -ENOMEM;
1990 goto finish;
1991 }
1992
fe51822e
LP		 1993 if (u->meta.manager->unit_path_cache &&
1994 !set_get(u->meta.manager->unit_path_cache, filename))
1995 r = -ENOENT;
1996 else
1997 r = open_follow(&filename, &f, symlink_names, &id);
1998
1999 if (r < 0) {
036643a2
LP		 2000 char *sn;
2001
2002 free(filename);
2003 filename = NULL;
2004
2005 if (r != -ENOENT)
2006 goto finish;
2007
2008 /* Empty the symlink names for the next run */
2009 while ((sn = set_steal_first(symlink_names)))
2010 free(sn);
3efd4195 2011
036643a2
LP		 2012 continue;
2013 }
2014
2015 break;
2016 }
2017 }
034c6ed7 2018
036643a2 2019 if (!filename) {
8f05424d 2020 /* Hmm, no suitable file found? */
23a177ef 2021 r = 0;
0301abf4
LP		 2022 goto finish;
2023 }
87f0e418 2024
23a177ef
LP		 2025 merged = u;
2026 if ((r = merge_by_names(&merged, symlink_names, id)) < 0)
0301abf4 2027 goto finish;
87f0e418 2028
23a177ef 2029 if (merged != u) {
e537352b 2030 u->meta.load_state = UNIT_MERGED;
23a177ef
LP		 2031 r = 0;
2032 goto finish;
034c6ed7
LP		 2033 }
2034
45fb0699
LP		 2035 zero(st);
2036 if (fstat(fileno(f), &st) < 0) {
2037 r = -errno;
2038 goto finish;
2039 }
2040
00dc5d76 2041 if (null_or_empty(&st))
6daf4f90 2042 u->meta.load_state = UNIT_MASKED;
00dc5d76
LP		 2043 else {
2044 /* Now, parse the file contents */
2045 if ((r = config_parse(filename, f, sections, items, false, u)) < 0)
2046 goto finish;
2047
2048 u->meta.load_state = UNIT_LOADED;
2049 }
b08d03ff 2050
6be1e7d5
LP		 2051 free(u->meta.fragment_path);
2052 u->meta.fragment_path = filename;
0301abf4 2053 filename = NULL;
87f0e418 2054
45fb0699
LP		 2055 u->meta.fragment_mtime = timespec_load(&st.st_mtim);
2056
23a177ef 2057 r = 0;
87f0e418
LP		 2058
2059finish:
53ec43c6 2060 set_free_free(symlink_names);
0301abf4
LP		 2061 free(filename);
2062
23a177ef
LP		 2063 if (f)
2064 fclose(f);
2065
0301abf4
LP		 2066 return r;
2067}
2068
e537352b 2069int unit_load_fragment(Unit *u) {
23a177ef 2070 int r;
294d81f1
LP		 2071 Iterator i;
2072 const char *t;
0301abf4
LP		 2073
2074 assert(u);
294d81f1
LP		 2075 assert(u->meta.load_state == UNIT_STUB);
2076 assert(u->meta.id);
23a177ef 2077
294d81f1
LP		 2078 /* First, try to find the unit under its id. We always look
2079 * for unit files in the default directories, to make it easy
2080 * to override things by placing things in /etc/systemd/system */
2081 if ((r = load_from_path(u, u->meta.id)) < 0)
2082 return r;
2083
2084 /* Try to find an alias we can load this with */
2085 if (u->meta.load_state == UNIT_STUB)
2086 SET_FOREACH(t, u->meta.names, i) {
2087
2088 if (t == u->meta.id)
2089 continue;
2090
2091 if ((r = load_from_path(u, t)) < 0)
2092 return r;
2093
2094 if (u->meta.load_state != UNIT_STUB)
2095 break;
2096 }
23a177ef 2097
294d81f1 2098 /* And now, try looking for it under the suggested (originally linked) path */
6ccb1b44
LP		 2099 if (u->meta.load_state == UNIT_STUB && u->meta.fragment_path) {
2100
e537352b 2101 if ((r = load_from_path(u, u->meta.fragment_path)) < 0)
23a177ef 2102 return r;
0301abf4 2103
6ccb1b44
LP		 2104 if (u->meta.load_state == UNIT_STUB) {
2105 /* Hmm, this didn't work? Then let's get rid
2106 * of the fragment path stored for us, so that
2107 * we don't point to an invalid location. */
2108 free(u->meta.fragment_path);
2109 u->meta.fragment_path = NULL;
2110 }
2111 }
2112
294d81f1
LP		 2113 /* Look for a template */
2114 if (u->meta.load_state == UNIT_STUB && u->meta.instance) {
2115 char *k;
2116
2117 if (!(k = unit_name_template(u->meta.id)))
2118 return -ENOMEM;
2119
2120 r = load_from_path(u, k);
2121 free(k);
0301abf4 2122
294d81f1 2123 if (r < 0)
9e2f7c11 2124 return r;
890f434c 2125
e537352b 2126 if (u->meta.load_state == UNIT_STUB)
23a177ef 2127 SET_FOREACH(t, u->meta.names, i) {
87f0e418 2128
9e2f7c11 2129 if (t == u->meta.id)
23a177ef 2130 continue;
071830ff 2131
294d81f1
LP		 2132 if (!(k = unit_name_template(t)))
2133 return -ENOMEM;
2134
2135 r = load_from_path(u, k);
2136 free(k);
2137
2138 if (r < 0)
23a177ef 2139 return r;
890f434c 2140
e537352b 2141 if (u->meta.load_state != UNIT_STUB)
23a177ef
LP		 2142 break;
2143 }
071830ff
LP		 2144 }
2145
23a177ef 2146 return 0;
3efd4195 2147}
e537352b
LP		 2148
2149void unit_dump_config_items(FILE *f) {
2150 /* OK, this wins a prize for extreme ugliness. */
2151
2152 load_from_path(NULL, (const void*) f);
2153}
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