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exec: replace OOMAdjust= by OOMScoreAdjust= to follow new kernel interface
[thirdparty/systemd.git] / src / load-fragment.c
CommitLineData
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
ddb26e18 45#define COMMENTS "#;\n"
ddb26e18 46
42f4e3c4 47static int config_parse_deps(
3efd4195
LP		 48 const char *filename,
49 unsigned line,
50 const char *section,
51 const char *lvalue,
52 const char *rvalue,
53 void *data,
54 void *userdata) {
55
87f0e418
LP		 56 UnitDependency d = PTR_TO_UINT(data);
57 Unit *u = userdata;
3efd4195
LP		 58 char *w;
59 size_t l;
60 char *state;
61
62 assert(filename);
63 assert(lvalue);
64 assert(rvalue);
3efd4195 65
f60f22df 66 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
9e2f7c11 67 char *t, *k;
3efd4195 68 int r;
3efd4195
LP		 69
70 if (!(t = strndup(w, l)))
71 return -ENOMEM;
72
9e2f7c11 73 k = unit_name_printf(u, t);
3efd4195
LP		 74 free(t);
75
9e2f7c11
LP		 76 if (!k)
77 return -ENOMEM;
78
701cc384 79 r = unit_add_dependency_by_name(u, d, k, NULL, true);
9e2f7c11 80
c0b34696
LP		 81 if (r < 0) {
82 log_error("Failed to add dependency on %s, ignoring: %s", k, strerror(-r));
83 free(k);
84 return 0;
85 }
86
87 free(k);
3efd4195
LP		 88 }
89
90 return 0;
91}
92
42f4e3c4 93static int config_parse_names(
87d1515d
LP		 94 const char *filename,
95 unsigned line,
96 const char *section,
97 const char *lvalue,
98 const char *rvalue,
99 void *data,
100 void *userdata) {
101
87f0e418 102 Unit *u = userdata;
87d1515d
LP		 103 char *w;
104 size_t l;
105 char *state;
106
107 assert(filename);
108 assert(lvalue);
109 assert(rvalue);
110 assert(data);
111
f60f22df 112 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
9e2f7c11 113 char *t, *k;
87d1515d 114 int r;
87d1515d
LP		 115
116 if (!(t = strndup(w, l)))
117 return -ENOMEM;
118
9e2f7c11 119 k = unit_name_printf(u, t);
87d1515d 120 free(t);
23a177ef 121
9e2f7c11
LP		 122 if (!k)
123 return -ENOMEM;
124
125 r = unit_merge_by_name(u, k);
9e2f7c11 126
c0b34696
LP		 127 if (r < 0) {
128 log_error("Failed to add name %s, ignoring: %s", k, strerror(-r));
129 free(k);
130 return 0;
131 }
132
133 free(k);
87d1515d
LP		 134 }
135
136 return 0;
137}
138
f2d3769a 139static int config_parse_string_printf(
932921b5
LP		 140 const char *filename,
141 unsigned line,
142 const char *section,
143 const char *lvalue,
144 const char *rvalue,
145 void *data,
146 void *userdata) {
147
148 Unit *u = userdata;
f2d3769a 149 char **s = data;
932921b5
LP		 150 char *k;
151
152 assert(filename);
153 assert(lvalue);
154 assert(rvalue);
f2d3769a
LP		 155 assert(s);
156 assert(u);
932921b5
LP		 157
158 if (!(k = unit_full_printf(u, rvalue)))
159 return -ENOMEM;
160
f2d3769a 161 free(*s);
932921b5 162 if (*k)
f2d3769a 163 *s = k;
932921b5
LP		 164 else {
165 free(k);
f2d3769a 166 *s = NULL;
932921b5
LP		 167 }
168
169 return 0;
170}
171
42f4e3c4
LP		 172static int config_parse_listen(
173 const char *filename,
174 unsigned line,
175 const char *section,
176 const char *lvalue,
177 const char *rvalue,
178 void *data,
179 void *userdata) {
180
16354eff 181 int r;
542563ba
LP		 182 SocketPort *p;
183 Socket *s;
16354eff 184
42f4e3c4
LP		 185 assert(filename);
186 assert(lvalue);
187 assert(rvalue);
188 assert(data);
189
542563ba
LP		 190 s = (Socket*) data;
191
192 if (!(p = new0(SocketPort, 1)))
193 return -ENOMEM;
194
195 if (streq(lvalue, "ListenFIFO")) {
196 p->type = SOCKET_FIFO;
197
198 if (!(p->path = strdup(rvalue))) {
199 free(p);
200 return -ENOMEM;
201 }
01f78473
LP		 202
203 path_kill_slashes(p->path);
542563ba
LP		 204 } else {
205 p->type = SOCKET_SOCKET;
206
207 if ((r = socket_address_parse(&p->address, rvalue)) < 0) {
c0b34696 208 log_error("[%s:%u] Failed to parse address value, ignoring: %s", filename, line, rvalue);
542563ba 209 free(p);
c0b34696 210 return 0;
542563ba
LP		 211 }
212
213 if (streq(lvalue, "ListenStream"))
214 p->address.type = SOCK_STREAM;
215 else if (streq(lvalue, "ListenDatagram"))
216 p->address.type = SOCK_DGRAM;
217 else {
218 assert(streq(lvalue, "ListenSequentialPacket"));
219 p->address.type = SOCK_SEQPACKET;
220 }
221
222 if (socket_address_family(&p->address) != AF_LOCAL && p->address.type == SOCK_SEQPACKET) {
c0b34696 223 log_error("[%s:%u] Address family not supported, ignoring: %s", filename, line, rvalue);
542563ba 224 free(p);
c0b34696 225 return 0;
542563ba 226 }
16354eff
LP		 227 }
228
542563ba 229 p->fd = -1;
034c6ed7 230 LIST_PREPEND(SocketPort, port, s->ports, p);
542563ba 231
16354eff 232 return 0;
42f4e3c4
LP		 233}
234
034c6ed7 235static int config_parse_socket_bind(
42f4e3c4
LP		 236 const char *filename,
237 unsigned line,
238 const char *section,
239 const char *lvalue,
240 const char *rvalue,
241 void *data,
242 void *userdata) {
243
542563ba 244 Socket *s;
c0120d99 245 SocketAddressBindIPv6Only b;
42f4e3c4
LP		 246
247 assert(filename);
248 assert(lvalue);
249 assert(rvalue);
250 assert(data);
251
542563ba
LP		 252 s = (Socket*) data;
253
c0120d99
LP		 254 if ((b = socket_address_bind_ipv6_only_from_string(rvalue)) < 0) {
255 int r;
256
257 if ((r = parse_boolean(rvalue)) < 0) {
c0b34696
LP		 258 log_error("[%s:%u] Failed to parse bind IPv6 only value, ignoring: %s", filename, line, rvalue);
259 return 0;
c0120d99 260 }
42f4e3c4 261
c0120d99
LP		 262 s->bind_ipv6_only = r ? SOCKET_ADDRESS_IPV6_ONLY : SOCKET_ADDRESS_BOTH;
263 } else
264 s->bind_ipv6_only = b;
542563ba 265
42f4e3c4
LP		 266 return 0;
267}
268
034c6ed7
LP		 269static int config_parse_nice(
270 const char *filename,
271 unsigned line,
272 const char *section,
273 const char *lvalue,
274 const char *rvalue,
275 void *data,
276 void *userdata) {
277
fb33a393
LP		 278 ExecContext *c = data;
279 int priority, r;
034c6ed7
LP		 280
281 assert(filename);
282 assert(lvalue);
283 assert(rvalue);
284 assert(data);
285
286 if ((r = safe_atoi(rvalue, &priority)) < 0) {
c0b34696
LP		 287 log_error("[%s:%u] Failed to parse nice priority, ignoring: %s. ", filename, line, rvalue);
288 return 0;
034c6ed7
LP		 289 }
290
291 if (priority < PRIO_MIN || priority >= PRIO_MAX) {
c0b34696
LP		 292 log_error("[%s:%u] Nice priority out of range, ignoring: %s", filename, line, rvalue);
293 return 0;
034c6ed7
LP		 294 }
295
fb33a393
LP		 296 c->nice = priority;
297 c->nice_set = false;
298
034c6ed7
LP		 299 return 0;
300}
301
dd6c17b1 302static int config_parse_oom_score_adjust(
034c6ed7
LP		 303 const char *filename,
304 unsigned line,
305 const char *section,
306 const char *lvalue,
307 const char *rvalue,
308 void *data,
309 void *userdata) {
310
fb33a393
LP		 311 ExecContext *c = data;
312 int oa, r;
034c6ed7
LP		 313
314 assert(filename);
315 assert(lvalue);
316 assert(rvalue);
317 assert(data);
318
319 if ((r = safe_atoi(rvalue, &oa)) < 0) {
dd6c17b1 320 log_error("[%s:%u] Failed to parse the OOM score adjust value, ignoring: %s", filename, line, rvalue);
c0b34696 321 return 0;
034c6ed7
LP		 322 }
323
dd6c17b1
LP		 324 if (oa < OOM_SCORE_ADJ_MIN || oa > OOM_SCORE_ADJ_MAX) {
325 log_error("[%s:%u] OOM score adjust value out of range, ignoring: %s", filename, line, rvalue);
c0b34696 326 return 0;
034c6ed7
LP		 327 }
328
dd6c17b1
LP		 329 c->oom_score_adjust = oa;
330 c->oom_score_adjust_set = true;
fb33a393 331
034c6ed7
LP		 332 return 0;
333}
334
b5a0699f 335static int config_parse_mode(
034c6ed7
LP		 336 const char *filename,
337 unsigned line,
338 const char *section,
339 const char *lvalue,
340 const char *rvalue,
341 void *data,
342 void *userdata) {
343
344 mode_t *m = data;
345 long l;
346 char *x = NULL;
347
348 assert(filename);
349 assert(lvalue);
350 assert(rvalue);
351 assert(data);
352
353 errno = 0;
354 l = strtol(rvalue, &x, 8);
355 if (!x || *x || errno) {
c0b34696
LP		 356 log_error("[%s:%u] Failed to parse mode value, ignoring: %s", filename, line, rvalue);
357 return 0;
034c6ed7
LP		 358 }
359
b5a0699f 360 if (l < 0000 || l > 07777) {
c0b34696
LP		 361 log_error("[%s:%u] mode value out of range, ignoring: %s", filename, line, rvalue);
362 return 0;
034c6ed7
LP		 363 }
364
365 *m = (mode_t) l;
366 return 0;
367}
368
369static int config_parse_exec(
370 const char *filename,
371 unsigned line,
372 const char *section,
373 const char *lvalue,
374 const char *rvalue,
375 void *data,
376 void *userdata) {
377
61e5d8ed
LP		 378 ExecCommand **e = data, *nce;
379 char *path, **n;
034c6ed7 380 unsigned k;
034c6ed7
LP		 381
382 assert(filename);
383 assert(lvalue);
384 assert(rvalue);
61e5d8ed 385 assert(e);
034c6ed7 386
6c666e26
LP		 387 /* We accept an absolute path as first argument, or
388 * alternatively an absolute prefixed with @ to allow
389 * overriding of argv[0]. */
390
61e5d8ed
LP		 391 for (;;) {
392 char *w;
393 size_t l;
394 char *state;
b708e7ce 395 bool honour_argv0 = false, ignore = false;
6c666e26 396
61e5d8ed
LP		 397 path = NULL;
398 nce = NULL;
399 n = NULL;
6c666e26 400
61e5d8ed 401 rvalue += strspn(rvalue, WHITESPACE);
034c6ed7 402
61e5d8ed
LP		 403 if (rvalue[0] == 0)
404 break;
034c6ed7 405
b708e7ce
LP		 406 if (rvalue[0] == '-') {
407 ignore = true;
408 rvalue ++;
409 }
410
411 if (rvalue[0] == '@') {
412 honour_argv0 = true;
413 rvalue ++;
414 }
61e5d8ed 415
b708e7ce 416 if (*rvalue != '/') {
c0b34696
LP		 417 log_error("[%s:%u] Invalid executable path in command line, ignoring: %s", filename, line, rvalue);
418 return 0;
6c666e26 419 }
034c6ed7 420
61e5d8ed
LP		 421 k = 0;
422 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
423 if (strncmp(w, ";", l) == 0)
424 break;
034c6ed7 425
61e5d8ed
LP		 426 k++;
427 }
034c6ed7 428
b708e7ce 429 if (!(n = new(char*, k + !honour_argv0)))
61e5d8ed
LP		 430 return -ENOMEM;
431
432 k = 0;
61e5d8ed
LP		 433 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
434 if (strncmp(w, ";", l) == 0)
435 break;
436
b708e7ce
LP		 437 if (honour_argv0 && w == rvalue) {
438 assert(!path);
439 if (!(path = cunescape_length(w, l)))
61e5d8ed 440 goto fail;
61e5d8ed
LP		 441 } else {
442 if (!(n[k++] = cunescape_length(w, l)))
443 goto fail;
444 }
445 }
446
447 n[k] = NULL;
448
449 if (!n[0]) {
c0b34696 450 log_error("[%s:%u] Invalid command line, ignoring: %s", filename, line, rvalue);
61e5d8ed 451 strv_free(n);
c0b34696 452 return 0;
61e5d8ed
LP		 453 }
454
455 if (!path)
456 if (!(path = strdup(n[0])))
457 goto fail;
6c666e26 458
61e5d8ed 459 assert(path_is_absolute(path));
6c666e26 460
61e5d8ed
LP		 461 if (!(nce = new0(ExecCommand, 1)))
462 goto fail;
463
464 nce->argv = n;
465 nce->path = path;
b708e7ce 466 nce->ignore = ignore;
034c6ed7 467
61e5d8ed 468 path_kill_slashes(nce->path);
034c6ed7 469
61e5d8ed 470 exec_command_append_list(e, nce);
01f78473 471
61e5d8ed
LP		 472 rvalue = state;
473 }
034c6ed7
LP		 474
475 return 0;
476
477fail:
6c666e26
LP		 478 n[k] = NULL;
479 strv_free(n);
480 free(path);
034c6ed7
LP		 481 free(nce);
482
483 return -ENOMEM;
484}
485
486static int config_parse_usec(
487 const char *filename,
488 unsigned line,
489 const char *section,
490 const char *lvalue,
491 const char *rvalue,
492 void *data,
493 void *userdata) {
494
495 usec_t *usec = data;
034c6ed7
LP		 496 int r;
497
498 assert(filename);
499 assert(lvalue);
500 assert(rvalue);
501 assert(data);
502
24a6e4a4 503 if ((r = parse_usec(rvalue, usec)) < 0) {
c0b34696
LP		 504 log_error("[%s:%u] Failed to parse time value, ignoring: %s", filename, line, rvalue);
505 return 0;
034c6ed7
LP		 506 }
507
034c6ed7
LP		 508 return 0;
509}
510
487393e9
LP		 511static DEFINE_CONFIG_PARSE_ENUM(config_parse_service_type, service_type, ServiceType, "Failed to parse service type");
512static DEFINE_CONFIG_PARSE_ENUM(config_parse_service_restart, service_restart, ServiceRestart, "Failed to parse service restart specifier");
034c6ed7 513
47be870b 514static int config_parse_bindtodevice(
acbb0225
LP		 515 const char *filename,
516 unsigned line,
517 const char *section,
518 const char *lvalue,
519 const char *rvalue,
520 void *data,
521 void *userdata) {
522
523 Socket *s = data;
524 char *n;
525
526 assert(filename);
527 assert(lvalue);
528 assert(rvalue);
529 assert(data);
530
531 if (rvalue[0] && !streq(rvalue, "*")) {
532 if (!(n = strdup(rvalue)))
533 return -ENOMEM;
534 } else
535 n = NULL;
536
537 free(s->bind_to_device);
538 s->bind_to_device = n;
539
540 return 0;
541}
542
487393e9
LP		 543static DEFINE_CONFIG_PARSE_ENUM(config_parse_output, exec_output, ExecOutput, "Failed to parse output specifier");
544static DEFINE_CONFIG_PARSE_ENUM(config_parse_input, exec_input, ExecInput, "Failed to parse input specifier");
87f0e418 545
47be870b 546static int config_parse_facility(
071830ff
LP		 547 const char *filename,
548 unsigned line,
549 const char *section,
550 const char *lvalue,
551 const char *rvalue,
552 void *data,
553 void *userdata) {
554
071830ff 555
94f04347 556 int *o = data, x;
071830ff
LP		 557
558 assert(filename);
559 assert(lvalue);
560 assert(rvalue);
561 assert(data);
562
0d87eb42 563 if ((x = log_facility_from_string(rvalue)) < 0) {
c0b34696
LP		 564 log_error("[%s:%u] Failed to parse log facility, ignoring: %s", filename, line, rvalue);
565 return 0;
0d87eb42 566 }
94f04347
LP		 567
568 *o = LOG_MAKEPRI(x, LOG_PRI(*o));
071830ff
LP		 569
570 return 0;
571}
572
47be870b 573static int config_parse_level(
071830ff
LP		 574 const char *filename,
575 unsigned line,
576 const char *section,
577 const char *lvalue,
578 const char *rvalue,
579 void *data,
580 void *userdata) {
581
071830ff 582
94f04347 583 int *o = data, x;
071830ff
LP		 584
585 assert(filename);
586 assert(lvalue);
587 assert(rvalue);
588 assert(data);
589
0d87eb42 590 if ((x = log_level_from_string(rvalue)) < 0) {
c0b34696
LP		 591 log_error("[%s:%u] Failed to parse log level, ignoring: %s", filename, line, rvalue);
592 return 0;
0d87eb42 593 }
071830ff 594
94f04347
LP		 595 *o = LOG_MAKEPRI(LOG_FAC(*o), x);
596 return 0;
597}
598
47be870b 599static int config_parse_io_class(
94f04347
LP		 600 const char *filename,
601 unsigned line,
602 const char *section,
603 const char *lvalue,
604 const char *rvalue,
605 void *data,
606 void *userdata) {
607
608 ExecContext *c = data;
609 int x;
610
611 assert(filename);
612 assert(lvalue);
613 assert(rvalue);
614 assert(data);
615
0d87eb42 616 if ((x = ioprio_class_from_string(rvalue)) < 0) {
c0b34696
LP		 617 log_error("[%s:%u] Failed to parse IO scheduling class, ignoring: %s", filename, line, rvalue);
618 return 0;
0d87eb42 619 }
94f04347
LP		 620
621 c->ioprio = IOPRIO_PRIO_VALUE(x, IOPRIO_PRIO_DATA(c->ioprio));
622 c->ioprio_set = true;
623
624 return 0;
625}
626
47be870b 627static int config_parse_io_priority(
94f04347
LP		 628 const char *filename,
629 unsigned line,
630 const char *section,
631 const char *lvalue,
632 const char *rvalue,
633 void *data,
634 void *userdata) {
635
636 ExecContext *c = data;
637 int i;
638
639 assert(filename);
640 assert(lvalue);
641 assert(rvalue);
642 assert(data);
643
644 if (safe_atoi(rvalue, &i) < 0 || i < 0 || i >= IOPRIO_BE_NR) {
c0b34696
LP		 645 log_error("[%s:%u] Failed to parse io priority, ignoring: %s", filename, line, rvalue);
646 return 0;
071830ff
LP		 647 }
648
94f04347
LP		 649 c->ioprio = IOPRIO_PRIO_VALUE(IOPRIO_PRIO_CLASS(c->ioprio), i);
650 c->ioprio_set = true;
651
071830ff
LP		 652 return 0;
653}
654
47be870b 655static int config_parse_cpu_sched_policy(
9eba9da4
LP		 656 const char *filename,
657 unsigned line,
658 const char *section,
659 const char *lvalue,
660 const char *rvalue,
661 void *data,
662 void *userdata) {
663
94f04347
LP		 664
665 ExecContext *c = data;
666 int x;
667
668 assert(filename);
669 assert(lvalue);
670 assert(rvalue);
671 assert(data);
672
0d87eb42 673 if ((x = sched_policy_from_string(rvalue)) < 0) {
c0b34696
LP		 674 log_error("[%s:%u] Failed to parse CPU scheduling policy, ignoring: %s", filename, line, rvalue);
675 return 0;
0d87eb42 676 }
94f04347
LP		 677
678 c->cpu_sched_policy = x;
679 c->cpu_sched_set = true;
680
681 return 0;
682}
683
47be870b 684static int config_parse_cpu_sched_prio(
94f04347
LP		 685 const char *filename,
686 unsigned line,
687 const char *section,
688 const char *lvalue,
689 const char *rvalue,
690 void *data,
691 void *userdata) {
9eba9da4
LP		 692
693 ExecContext *c = data;
694 int i;
695
696 assert(filename);
697 assert(lvalue);
698 assert(rvalue);
699 assert(data);
700
94f04347
LP		 701 /* On Linux RR/FIFO have the same range */
702 if (safe_atoi(rvalue, &i) < 0 || i < sched_get_priority_min(SCHED_RR) || i > sched_get_priority_max(SCHED_RR)) {
c0b34696
LP		 703 log_error("[%s:%u] Failed to parse CPU scheduling priority, ignoring: %s", filename, line, rvalue);
704 return 0;
94f04347 705 }
9eba9da4 706
94f04347
LP		 707 c->cpu_sched_priority = i;
708 c->cpu_sched_set = true;
709
710 return 0;
711}
712
47be870b 713static int config_parse_cpu_affinity(
94f04347
LP		 714 const char *filename,
715 unsigned line,
716 const char *section,
717 const char *lvalue,
718 const char *rvalue,
719 void *data,
720 void *userdata) {
721
722 ExecContext *c = data;
723 char *w;
724 size_t l;
725 char *state;
726
727 assert(filename);
728 assert(lvalue);
729 assert(rvalue);
730 assert(data);
731
f60f22df 732 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
94f04347
LP		 733 char *t;
734 int r;
735 unsigned cpu;
736
737 if (!(t = strndup(w, l)))
738 return -ENOMEM;
739
487393e9
LP		 740 r = safe_atou(t, &cpu);
741 free(t);
742
82c121a4
LP		 743 if (!(c->cpuset))
744 if (!(c->cpuset = cpu_set_malloc(&c->cpuset_ncpus)))
745 return -ENOMEM;
746
82c121a4 747 if (r < 0 || cpu >= c->cpuset_ncpus) {
c0b34696
LP		 748 log_error("[%s:%u] Failed to parse CPU affinity, ignoring: %s", filename, line, rvalue);
749 return 0;
9eba9da4 750 }
94f04347 751
82c121a4 752 CPU_SET_S(cpu, CPU_ALLOC_SIZE(c->cpuset_ncpus), c->cpuset);
9eba9da4
LP		 753 }
754
94f04347
LP		 755 return 0;
756}
757
47be870b 758static int config_parse_capabilities(
94f04347
LP		 759 const char *filename,
760 unsigned line,
761 const char *section,
762 const char *lvalue,
763 const char *rvalue,
764 void *data,
765 void *userdata) {
766
767 ExecContext *c = data;
768 cap_t cap;
769
770 assert(filename);
771 assert(lvalue);
772 assert(rvalue);
773 assert(data);
774
775 if (!(cap = cap_from_text(rvalue))) {
776 if (errno == ENOMEM)
777 return -ENOMEM;
778
c0b34696
LP		 779 log_error("[%s:%u] Failed to parse capabilities, ignoring: %s", filename, line, rvalue);
780 return 0;
94f04347
LP		 781 }
782
783 if (c->capabilities)
784 cap_free(c->capabilities);
785 c->capabilities = cap;
786
787 return 0;
788}
789
47be870b 790static int config_parse_secure_bits(
94f04347
LP		 791 const char *filename,
792 unsigned line,
793 const char *section,
794 const char *lvalue,
795 const char *rvalue,
796 void *data,
797 void *userdata) {
798
799 ExecContext *c = data;
800 char *w;
801 size_t l;
802 char *state;
803
804 assert(filename);
805 assert(lvalue);
806 assert(rvalue);
807 assert(data);
808
f60f22df 809 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
94f04347
LP		 810 if (first_word(w, "keep-caps"))
811 c->secure_bits |= SECURE_KEEP_CAPS;
812 else if (first_word(w, "keep-caps-locked"))
813 c->secure_bits |= SECURE_KEEP_CAPS_LOCKED;
814 else if (first_word(w, "no-setuid-fixup"))
815 c->secure_bits |= SECURE_NO_SETUID_FIXUP;
816 else if (first_word(w, "no-setuid-fixup-locked"))
817 c->secure_bits |= SECURE_NO_SETUID_FIXUP_LOCKED;
818 else if (first_word(w, "noroot"))
819 c->secure_bits |= SECURE_NOROOT;
820 else if (first_word(w, "noroot-locked"))
821 c->secure_bits |= SECURE_NOROOT_LOCKED;
9eba9da4 822 else {
c0b34696
LP		 823 log_error("[%s:%u] Failed to parse secure bits, ignoring: %s", filename, line, rvalue);
824 return 0;
9eba9da4
LP		 825 }
826 }
827
94f04347
LP		 828 return 0;
829}
830
47be870b 831static int config_parse_bounding_set(
94f04347
LP		 832 const char *filename,
833 unsigned line,
834 const char *section,
835 const char *lvalue,
836 const char *rvalue,
837 void *data,
838 void *userdata) {
839
840 ExecContext *c = data;
841 char *w;
842 size_t l;
843 char *state;
844
845 assert(filename);
846 assert(lvalue);
847 assert(rvalue);
848 assert(data);
849
f60f22df 850 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
94f04347
LP		 851 char *t;
852 int r;
853 cap_value_t cap;
854
855 if (!(t = strndup(w, l)))
856 return -ENOMEM;
857
858 r = cap_from_name(t, &cap);
859 free(t);
860
861 if (r < 0) {
c0b34696
LP		 862 log_error("[%s:%u] Failed to parse capability bounding set, ignoring: %s", filename, line, rvalue);
863 return 0;
94f04347
LP		 864 }
865
866 c->capability_bounding_set_drop |= 1 << cap;
867 }
9eba9da4
LP		 868
869 return 0;
870}
871
03fae018 872static int config_parse_timer_slack_nsec(
9eba9da4
LP		 873 const char *filename,
874 unsigned line,
875 const char *section,
876 const char *lvalue,
877 const char *rvalue,
878 void *data,
879 void *userdata) {
880
881 ExecContext *c = data;
94f04347
LP		 882 unsigned long u;
883 int r;
9eba9da4
LP		 884
885 assert(filename);
886 assert(lvalue);
887 assert(rvalue);
888 assert(data);
889
94f04347 890 if ((r = safe_atolu(rvalue, &u)) < 0) {
c0b34696
LP		 891 log_error("[%s:%u] Failed to parse time slack value, ignoring: %s", filename, line, rvalue);
892 return 0;
9eba9da4
LP		 893 }
894
03fae018 895 c->timer_slack_nsec = u;
94f04347
LP		 896
897 return 0;
898}
899
900static int config_parse_limit(
901 const char *filename,
902 unsigned line,
903 const char *section,
904 const char *lvalue,
905 const char *rvalue,
906 void *data,
907 void *userdata) {
908
909 struct rlimit **rl = data;
910 unsigned long long u;
911 int r;
912
913 assert(filename);
914 assert(lvalue);
915 assert(rvalue);
916 assert(data);
917
918 if ((r = safe_atollu(rvalue, &u)) < 0) {
c0b34696
LP		 919 log_error("[%s:%u] Failed to parse resource value, ignoring: %s", filename, line, rvalue);
920 return 0;
94f04347
LP		 921 }
922
923 if (!*rl)
924 if (!(*rl = new(struct rlimit, 1)))
925 return -ENOMEM;
9eba9da4 926
94f04347 927 (*rl)->rlim_cur = (*rl)->rlim_max = (rlim_t) u;
9eba9da4
LP		 928 return 0;
929}
930
8e274523
LP		 931static int config_parse_cgroup(
932 const char *filename,
933 unsigned line,
934 const char *section,
935 const char *lvalue,
936 const char *rvalue,
937 void *data,
938 void *userdata) {
939
940 Unit *u = userdata;
941 char *w;
942 size_t l;
943 char *state;
944
f60f22df 945 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
8e274523
LP		 946 char *t;
947 int r;
948
f60f22df 949 if (!(t = cunescape_length(w, l)))
8e274523
LP		 950 return -ENOMEM;
951
952 r = unit_add_cgroup_from_text(u, t);
953 free(t);
954
c0b34696
LP		 955 if (r < 0) {
956 log_error("[%s:%u] Failed to parse cgroup value, ignoring: %s", filename, line, rvalue);
957 return 0;
958 }
8e274523
LP		 959 }
960
961 return 0;
962}
963
a9a1e00a
LP		 964static int config_parse_sysv_priority(
965 const char *filename,
966 unsigned line,
967 const char *section,
968 const char *lvalue,
969 const char *rvalue,
970 void *data,
971 void *userdata) {
972
973 int *priority = data;
974 int r, i;
975
976 assert(filename);
977 assert(lvalue);
978 assert(rvalue);
979 assert(data);
980
981 if ((r = safe_atoi(rvalue, &i)) < 0 || i < 0) {
c0b34696
LP		 982 log_error("[%s:%u] Failed to parse SysV start priority, ignoring: %s", filename, line, rvalue);
983 return 0;
a9a1e00a
LP		 984 }
985
986 *priority = (int) i;
987 return 0;
988}
989
487393e9 990static DEFINE_CONFIG_PARSE_ENUM(config_parse_kill_mode, kill_mode, KillMode, "Failed to parse kill mode");
50159e6a 991
2e22afe9
LP		 992static int config_parse_kill_signal(
993 const char *filename,
994 unsigned line,
995 const char *section,
996 const char *lvalue,
997 const char *rvalue,
998 void *data,
999 void *userdata) {
1000
1001 int *sig = data;
1002 int r;
1003
1004 assert(filename);
1005 assert(lvalue);
1006 assert(rvalue);
1007 assert(sig);
1008
1009 if ((r = signal_from_string(rvalue)) <= 0)
1010 if (startswith(rvalue, "SIG"))
1011 r = signal_from_string(rvalue+3);
1012
1013 if (r <= 0) {
c0b34696
LP		 1014 log_error("[%s:%u] Failed to parse kill signal, ignoring: %s", filename, line, rvalue);
1015 return 0;
2e22afe9
LP		 1016 }
1017
1018 *sig = r;
1019 return 0;
1020}
1021
15ae422b
LP		 1022static int config_parse_mount_flags(
1023 const char *filename,
1024 unsigned line,
1025 const char *section,
1026 const char *lvalue,
1027 const char *rvalue,
1028 void *data,
1029 void *userdata) {
1030
1031 ExecContext *c = data;
1032 char *w;
1033 size_t l;
1034 char *state;
1035 unsigned long flags = 0;
1036
1037 assert(filename);
1038 assert(lvalue);
1039 assert(rvalue);
1040 assert(data);
1041
f60f22df 1042 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
15ae422b
LP		 1043 if (strncmp(w, "shared", l) == 0)
1044 flags |= MS_SHARED;
1045 else if (strncmp(w, "slave", l) == 0)
1046 flags |= MS_SLAVE;
1047 else if (strncmp(w, "private", l) == 0)
1048 flags |= MS_PRIVATE;
1049 else {
c0b34696
LP		 1050 log_error("[%s:%u] Failed to parse mount flags, ignoring: %s", filename, line, rvalue);
1051 return 0;
15ae422b
LP		 1052 }
1053 }
1054
1055 c->mount_flags = flags;
1056 return 0;
1057}
1058
871d7de4
LP		 1059static int config_parse_timer(
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 Timer *t = data;
1069 usec_t u;
1070 int r;
1071 TimerValue *v;
1072 TimerBase b;
1073
1074 assert(filename);
1075 assert(lvalue);
1076 assert(rvalue);
1077 assert(data);
1078
1079 if ((b = timer_base_from_string(lvalue)) < 0) {
c0b34696
LP		 1080 log_error("[%s:%u] Failed to parse timer base, ignoring: %s", filename, line, lvalue);
1081 return 0;
871d7de4
LP		 1082 }
1083
1084 if ((r = parse_usec(rvalue, &u)) < 0) {
c0b34696
LP		 1085 log_error("[%s:%u] Failed to parse timer value, ignoring: %s", filename, line, rvalue);
1086 return 0;
871d7de4
LP		 1087 }
1088
1089 if (!(v = new0(TimerValue, 1)))
1090 return -ENOMEM;
1091
1092 v->base = b;
1093 v->value = u;
1094
1095 LIST_PREPEND(TimerValue, value, t->values, v);
1096
1097 return 0;
1098}
1099
1100static int config_parse_timer_unit(
1101 const char *filename,
1102 unsigned line,
1103 const char *section,
1104 const char *lvalue,
1105 const char *rvalue,
1106 void *data,
1107 void *userdata) {
1108
1109 Timer *t = data;
1110 int r;
398ef8ba
LP		 1111 DBusError error;
1112
1113 assert(filename);
1114 assert(lvalue);
1115 assert(rvalue);
1116 assert(data);
1117
1118 dbus_error_init(&error);
871d7de4
LP		 1119
1120 if (endswith(rvalue, ".timer")) {
c0b34696
LP		 1121 log_error("[%s:%u] Unit cannot be of type timer, ignoring: %s", filename, line, rvalue);
1122 return 0;
871d7de4
LP		 1123 }
1124
398ef8ba 1125 if ((r = manager_load_unit(t->meta.manager, rvalue, NULL, NULL, &t->unit)) < 0) {
c0b34696 1126 log_error("[%s:%u] Failed to load unit %s, ignoring: %s", filename, line, rvalue, bus_error(&error, r));
398ef8ba 1127 dbus_error_free(&error);
c0b34696 1128 return 0;
871d7de4
LP		 1129 }
1130
1131 return 0;
1132}
1133
01f78473
LP		 1134static int config_parse_path_spec(
1135 const char *filename,
1136 unsigned line,
1137 const char *section,
1138 const char *lvalue,
1139 const char *rvalue,
1140 void *data,
1141 void *userdata) {
1142
1143 Path *p = data;
1144 PathSpec *s;
1145 PathType b;
1146
1147 assert(filename);
1148 assert(lvalue);
1149 assert(rvalue);
1150 assert(data);
1151
1152 if ((b = path_type_from_string(lvalue)) < 0) {
c0b34696
LP		 1153 log_error("[%s:%u] Failed to parse path type, ignoring: %s", filename, line, lvalue);
1154 return 0;
01f78473
LP		 1155 }
1156
1157 if (!path_is_absolute(rvalue)) {
c0b34696
LP		 1158 log_error("[%s:%u] Path is not absolute, ignoring: %s", filename, line, rvalue);
1159 return 0;
01f78473
LP		 1160 }
1161
1162 if (!(s = new0(PathSpec, 1)))
1163 return -ENOMEM;
1164
1165 if (!(s->path = strdup(rvalue))) {
1166 free(s);
1167 return -ENOMEM;
1168 }
1169
1170 path_kill_slashes(s->path);
1171
1172 s->type = b;
1173 s->inotify_fd = -1;
1174
1175 LIST_PREPEND(PathSpec, spec, p->specs, s);
1176
1177 return 0;
1178}
1179
1180static int config_parse_path_unit(
1181 const char *filename,
1182 unsigned line,
1183 const char *section,
1184 const char *lvalue,
1185 const char *rvalue,
1186 void *data,
1187 void *userdata) {
1188
1189 Path *t = data;
1190 int r;
398ef8ba
LP		 1191 DBusError error;
1192
1193 assert(filename);
1194 assert(lvalue);
1195 assert(rvalue);
1196 assert(data);
1197
1198 dbus_error_init(&error);
01f78473
LP		 1199
1200 if (endswith(rvalue, ".path")) {
c0b34696
LP		 1201 log_error("[%s:%u] Unit cannot be of type path, ignoring: %s", filename, line, rvalue);
1202 return 0;
01f78473
LP		 1203 }
1204
398ef8ba 1205 if ((r = manager_load_unit(t->meta.manager, rvalue, NULL, &error, &t->unit)) < 0) {
c0b34696 1206 log_error("[%s:%u] Failed to load unit %s, ignoring: %s", filename, line, rvalue, bus_error(&error, r));
398ef8ba 1207 dbus_error_free(&error);
c0b34696 1208 return 0;
01f78473
LP		 1209 }
1210
1211 return 0;
1212}
1213
ddb26e18
LP		 1214static int config_parse_env_file(
1215 const char *filename,
1216 unsigned line,
1217 const char *section,
1218 const char *lvalue,
1219 const char *rvalue,
1220 void *data,
1221 void *userdata) {
1222
1223 FILE *f;
1224 int r;
1225 char ***env = data;
1226
1227 assert(filename);
1228 assert(lvalue);
1229 assert(rvalue);
1230 assert(data);
1231
1232 if (!(f = fopen(rvalue, "re"))) {
c0b34696
LP		 1233 log_error("[%s:%u] Failed to open environment file '%s', ignoring: %m", filename, line, rvalue);
1234 return 0;
ddb26e18
LP		 1235 }
1236
1237 while (!feof(f)) {
1238 char l[LINE_MAX], *p;
1239 char **t;
1240
1241 if (!fgets(l, sizeof(l), f)) {
1242 if (feof(f))
1243 break;
1244
1245 r = -errno;
c0b34696
LP		 1246 log_error("[%s:%u] Failed to read environment file '%s', ignoring: %m", filename, line, rvalue);
1247 r = 0;
ddb26e18
LP		 1248 goto finish;
1249 }
1250
1251 p = strstrip(l);
1252
1253 if (!*p)
1254 continue;
1255
1256 if (strchr(COMMENTS, *p))
1257 continue;
1258
1259 t = strv_env_set(*env, p);
1260 strv_free(*env);
1261 *env = t;
1262 }
1263
1264 r = 0;
1265
1266finish:
1267 if (f)
1268 fclose(f);
1269
1270 return r;
1271}
1272
4fd5948e
LP		 1273static int config_parse_ip_tos(
1274 const char *filename,
1275 unsigned line,
1276 const char *section,
1277 const char *lvalue,
1278 const char *rvalue,
1279 void *data,
1280 void *userdata) {
1281
1282 int *ip_tos = data, x;
1283 int r;
1284
1285 assert(filename);
1286 assert(lvalue);
1287 assert(rvalue);
1288 assert(data);
1289
1290 if ((x = ip_tos_from_string(rvalue)) < 0)
1291 if ((r = safe_atoi(rvalue, &x)) < 0) {
c0b34696
LP		 1292 log_error("[%s:%u] Failed to parse IP TOS value, ignoring: %s", filename, line, rvalue);
1293 return 0;
4fd5948e
LP		 1294 }
1295
1296 *ip_tos = x;
1297 return 0;
1298}
1299
487393e9 1300static DEFINE_CONFIG_PARSE_ENUM(config_parse_notify_access, notify_access, NotifyAccess, "Failed to parse notify access specifier");
c952c6ec 1301
071830ff 1302#define FOLLOW_MAX 8
87f0e418 1303
9e2f7c11 1304static int open_follow(char **filename, FILE **_f, Set *names, char **_final) {
0301abf4 1305 unsigned c = 0;
87f0e418
LP		 1306 int fd, r;
1307 FILE *f;
0301abf4 1308 char *id = NULL;
87f0e418
LP		 1309
1310 assert(filename);
1311 assert(*filename);
1312 assert(_f);
1313 assert(names);
1314
0301abf4
LP		 1315 /* This will update the filename pointer if the loaded file is
1316 * reached by a symlink. The old string will be freed. */
87f0e418 1317
0301abf4 1318 for (;;) {
2c7108c4 1319 char *target, *name;
87f0e418 1320
0301abf4
LP		 1321 if (c++ >= FOLLOW_MAX)
1322 return -ELOOP;
1323
b08d03ff
LP		 1324 path_kill_slashes(*filename);
1325
87f0e418 1326 /* Add the file name we are currently looking at to
8f05424d
LP		 1327 * the names of this unit, but only if it is a valid
1328 * unit name. */
0301abf4 1329 name = file_name_from_path(*filename);
87f0e418 1330
8f05424d
LP		 1331 if (unit_name_is_valid(name)) {
1332 if (!(id = set_get(names, name))) {
1333
1334 if (!(id = strdup(name)))
1335 return -ENOMEM;
87f0e418 1336
8f05424d
LP		 1337 if ((r = set_put(names, id)) < 0) {
1338 free(id);
1339 return r;
1340 }
87f0e418 1341 }
87f0e418
LP		 1342 }
1343
0301abf4
LP		 1344 /* Try to open the file name, but don't if its a symlink */
1345 if ((fd = open(*filename, O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW)) >= 0)
87f0e418
LP		 1346 break;
1347
0301abf4
LP		 1348 if (errno != ELOOP)
1349 return -errno;
1350
87f0e418 1351 /* Hmm, so this is a symlink. Let's read the name, and follow it manually */
2c7108c4 1352 if ((r = readlink_and_make_absolute(*filename, &target)) < 0)
0301abf4 1353 return r;
87f0e418 1354
0301abf4 1355 free(*filename);
2c7108c4 1356 *filename = target;
87f0e418
LP		 1357 }
1358
8f05424d 1359 if (!(f = fdopen(fd, "re"))) {
87f0e418 1360 r = -errno;
9e2f7c11 1361 close_nointr_nofail(fd);
0301abf4 1362 return r;
87f0e418
LP		 1363 }
1364
1365 *_f = f;
9e2f7c11 1366 *_final = id;
0301abf4 1367 return 0;
87f0e418
LP		 1368}
1369
23a177ef
LP		 1370static int merge_by_names(Unit **u, Set *names, const char *id) {
1371 char *k;
1372 int r;
1373
1374 assert(u);
1375 assert(*u);
1376 assert(names);
1377
1378 /* Let's try to add in all symlink names we found */
1379 while ((k = set_steal_first(names))) {
1380
1381 /* First try to merge in the other name into our
1382 * unit */
1383 if ((r = unit_merge_by_name(*u, k)) < 0) {
1384 Unit *other;
1385
1386 /* Hmm, we couldn't merge the other unit into
1387 * ours? Then let's try it the other way
1388 * round */
1389
1390 other = manager_get_unit((*u)->meta.manager, k);
1391 free(k);
1392
1393 if (other)
1394 if ((r = unit_merge(other, *u)) >= 0) {
1395 *u = other;
1396 return merge_by_names(u, names, NULL);
1397 }
1398
1399 return r;
1400 }
1401
1402 if (id == k)
1403 unit_choose_id(*u, id);
1404
1405 free(k);
1406 }
1407
1408 return 0;
1409}
1410
e537352b
LP		 1411static void dump_items(FILE *f, const ConfigItem *items) {
1412 const ConfigItem *i;
1413 const char *prev_section = NULL;
1414 bool not_first = false;
1415
1416 struct {
1417 ConfigParserCallback callback;
1418 const char *rvalue;
1419 } table[] = {
1420 { config_parse_int, "INTEGER" },
1421 { config_parse_unsigned, "UNSIGNED" },
1422 { config_parse_size, "SIZE" },
1423 { config_parse_bool, "BOOLEAN" },
1424 { config_parse_string, "STRING" },
1425 { config_parse_path, "PATH" },
1426 { config_parse_strv, "STRING [...]" },
1427 { config_parse_nice, "NICE" },
dd6c17b1 1428 { config_parse_oom_score_adjust, "OOMSCOREADJUST" },
e537352b
LP		 1429 { config_parse_io_class, "IOCLASS" },
1430 { config_parse_io_priority, "IOPRIORITY" },
1431 { config_parse_cpu_sched_policy, "CPUSCHEDPOLICY" },
1432 { config_parse_cpu_sched_prio, "CPUSCHEDPRIO" },
1433 { config_parse_cpu_affinity, "CPUAFFINITY" },
1434 { config_parse_mode, "MODE" },
ddb26e18 1435 { config_parse_env_file, "FILE" },
e537352b
LP		 1436 { config_parse_output, "OUTPUT" },
1437 { config_parse_input, "INPUT" },
1438 { config_parse_facility, "FACILITY" },
1439 { config_parse_level, "LEVEL" },
1440 { config_parse_capabilities, "CAPABILITIES" },
1441 { config_parse_secure_bits, "SECUREBITS" },
1442 { config_parse_bounding_set, "BOUNDINGSET" },
03fae018 1443 { config_parse_timer_slack_nsec, "TIMERSLACK" },
e537352b
LP		 1444 { config_parse_limit, "LIMIT" },
1445 { config_parse_cgroup, "CGROUP [...]" },
1446 { config_parse_deps, "UNIT [...]" },
1447 { config_parse_names, "UNIT [...]" },
1448 { config_parse_exec, "PATH [ARGUMENT [...]]" },
1449 { config_parse_service_type, "SERVICETYPE" },
1450 { config_parse_service_restart, "SERVICERESTART" },
1451 { config_parse_sysv_priority, "SYSVPRIORITY" },
1452 { config_parse_kill_mode, "KILLMODE" },
2e22afe9 1453 { config_parse_kill_signal, "SIGNAL" },
e537352b
LP		 1454 { config_parse_listen, "SOCKET [...]" },
1455 { config_parse_socket_bind, "SOCKETBIND" },
93ef5e80
LP		 1456 { config_parse_bindtodevice, "NETWORKINTERFACE" },
1457 { config_parse_usec, "SECONDS" },
1458 { config_parse_path_strv, "PATH [...]" },
932921b5 1459 { config_parse_mount_flags, "MOUNTFLAG [...]" },
f2d3769a 1460 { config_parse_string_printf, "STRING" },
871d7de4
LP		 1461 { config_parse_timer, "TIMER" },
1462 { config_parse_timer_unit, "NAME" },
c952c6ec
LP		 1463 { config_parse_path_spec, "PATH" },
1464 { config_parse_path_unit, "UNIT" },
8b03daeb
LP		 1465 { config_parse_notify_access, "ACCESS" },
1466 { config_parse_ip_tos, "TOS" },
e537352b
LP		 1467 };
1468
1469 assert(f);
1470 assert(items);
1471
1472 for (i = items; i->lvalue; i++) {
1473 unsigned j;
1474 const char *rvalue = "OTHER";
1475
1476 if (!streq_ptr(i->section, prev_section)) {
1477 if (!not_first)
1478 not_first = true;
1479 else
1480 fputc('\n', f);
1481
1482 fprintf(f, "[%s]\n", i->section);
1483 prev_section = i->section;
1484 }
1485
1486 for (j = 0; j < ELEMENTSOF(table); j++)
1487 if (i->parse == table[j].callback) {
1488 rvalue = table[j].rvalue;
1489 break;
1490 }
1491
1492 fprintf(f, "%s=%s\n", i->lvalue, rvalue);
1493 }
1494}
1495
1496static int load_from_path(Unit *u, const char *path) {
87f0e418
LP		 1497
1498 static const char* const section_table[_UNIT_TYPE_MAX] = {
1499 [UNIT_SERVICE] = "Service",
1500 [UNIT_TIMER] = "Timer",
1501 [UNIT_SOCKET] = "Socket",
1502 [UNIT_TARGET] = "Target",
1503 [UNIT_DEVICE] = "Device",
1504 [UNIT_MOUNT] = "Mount",
1505 [UNIT_AUTOMOUNT] = "Automount",
07b0b134 1506 [UNIT_SNAPSHOT] = "Snapshot",
01f78473
LP		 1507 [UNIT_SWAP] = "Swap",
1508 [UNIT_PATH] = "Path"
42f4e3c4
LP		 1509 };
1510
034c6ed7 1511#define EXEC_CONTEXT_CONFIG_ITEMS(context, section) \
9eba9da4
LP		 1512 { "WorkingDirectory", config_parse_path, &(context).working_directory, section }, \
1513 { "RootDirectory", config_parse_path, &(context).root_directory, section }, \
f2d3769a
LP		 1514 { "User", config_parse_string_printf, &(context).user, section }, \
1515 { "Group", config_parse_string_printf, &(context).group, section }, \
1c01f82b 1516 { "SupplementaryGroups", config_parse_strv, &(context).supplementary_groups, section }, \
fb33a393 1517 { "Nice", config_parse_nice, &(context), section }, \
dd6c17b1 1518 { "OOMScoreAdjust", config_parse_oom_score_adjust,&(context), section }, \
9eba9da4 1519 { "IOSchedulingClass", config_parse_io_class, &(context), section }, \
94f04347
LP		 1520 { "IOSchedulingPriority", config_parse_io_priority, &(context), section }, \
1521 { "CPUSchedulingPolicy", config_parse_cpu_sched_policy,&(context), section }, \
1522 { "CPUSchedulingPriority", config_parse_cpu_sched_prio, &(context), section }, \
38b48754 1523 { "CPUSchedulingResetOnFork", config_parse_bool, &(context).cpu_sched_reset_on_fork, section }, \
94f04347 1524 { "CPUAffinity", config_parse_cpu_affinity, &(context), section }, \
b5a0699f 1525 { "UMask", config_parse_mode, &(context).umask, section }, \
071830ff 1526 { "Environment", config_parse_strv, &(context).environment, section }, \
ddb26e18 1527 { "EnvironmentFile", config_parse_env_file, &(context).environment, section }, \
80876c20
LP		 1528 { "StandardInput", config_parse_input, &(context).std_input, section }, \
1529 { "StandardOutput", config_parse_output, &(context).std_output, section }, \
a4ddf827 1530 { "StandardError", config_parse_output, &(context).std_error, section }, \
80876c20 1531 { "TTYPath", config_parse_path, &(context).tty_path, section }, \
f2d3769a 1532 { "SyslogIdentifier", config_parse_string_printf, &(context).syslog_identifier, section }, \
071830ff 1533 { "SyslogFacility", config_parse_facility, &(context).syslog_priority, section }, \
94f04347 1534 { "SyslogLevel", config_parse_level, &(context).syslog_priority, section }, \
74922904 1535 { "SyslogLevelPrefix", config_parse_bool, &(context).syslog_level_prefix, section }, \
94f04347
LP		 1536 { "Capabilities", config_parse_capabilities, &(context), section }, \
1537 { "SecureBits", config_parse_secure_bits, &(context), section }, \
1538 { "CapabilityBoundingSetDrop", config_parse_bounding_set, &(context), section }, \
03fae018 1539 { "TimerSlackNSec", config_parse_timer_slack_nsec,&(context), section }, \
94f04347
LP		 1540 { "LimitCPU", config_parse_limit, &(context).rlimit[RLIMIT_CPU], section }, \
1541 { "LimitFSIZE", config_parse_limit, &(context).rlimit[RLIMIT_FSIZE], section }, \
1542 { "LimitDATA", config_parse_limit, &(context).rlimit[RLIMIT_DATA], section }, \
1543 { "LimitSTACK", config_parse_limit, &(context).rlimit[RLIMIT_STACK], section }, \
1544 { "LimitCORE", config_parse_limit, &(context).rlimit[RLIMIT_CORE], section }, \
1545 { "LimitRSS", config_parse_limit, &(context).rlimit[RLIMIT_RSS], section }, \
1546 { "LimitNOFILE", config_parse_limit, &(context).rlimit[RLIMIT_NOFILE], section }, \
1547 { "LimitAS", config_parse_limit, &(context).rlimit[RLIMIT_AS], section }, \
1548 { "LimitNPROC", config_parse_limit, &(context).rlimit[RLIMIT_NPROC], section }, \
1549 { "LimitMEMLOCK", config_parse_limit, &(context).rlimit[RLIMIT_MEMLOCK], section }, \
1550 { "LimitLOCKS", config_parse_limit, &(context).rlimit[RLIMIT_LOCKS], section }, \
1551 { "LimitSIGPENDING", config_parse_limit, &(context).rlimit[RLIMIT_SIGPENDING], section }, \
1552 { "LimitMSGQUEUE", config_parse_limit, &(context).rlimit[RLIMIT_MSGQUEUE], section }, \
1553 { "LimitNICE", config_parse_limit, &(context).rlimit[RLIMIT_NICE], section }, \
1554 { "LimitRTPRIO", config_parse_limit, &(context).rlimit[RLIMIT_RTPRIO], section }, \
451a074f 1555 { "LimitRTTIME", config_parse_limit, &(context).rlimit[RLIMIT_RTTIME], section }, \
15ae422b
LP		 1556 { "ControlGroup", config_parse_cgroup, u, section }, \
1557 { "ReadWriteDirectories", config_parse_path_strv, &(context).read_write_dirs, section }, \
1558 { "ReadOnlyDirectories", config_parse_path_strv, &(context).read_only_dirs, section }, \
1559 { "InaccessibleDirectories",config_parse_path_strv, &(context).inaccessible_dirs, section }, \
1560 { "PrivateTmp", config_parse_bool, &(context).private_tmp, section }, \
df1f0afe 1561 { "MountFlags", config_parse_mount_flags, &(context), section }, \
f2d3769a 1562 { "TCPWrapName", config_parse_string_printf, &(context).tcpwrap_name, section }, \
2e22afe9
LP		 1563 { "PAMName", config_parse_string_printf, &(context).pam_name, section }, \
1564 { "KillMode", config_parse_kill_mode, &(context).kill_mode, section }, \
1565 { "KillSignal", config_parse_kill_signal, &(context).kill_signal, section }
034c6ed7 1566
3efd4195 1567 const ConfigItem items[] = {
09477267 1568 { "Names", config_parse_names, u, "Unit" },
f2d3769a 1569 { "Description", config_parse_string_printf, &u->meta.description, "Unit" },
09477267
LP		 1570 { "Requires", config_parse_deps, UINT_TO_PTR(UNIT_REQUIRES), "Unit" },
1571 { "RequiresOverridable", config_parse_deps, UINT_TO_PTR(UNIT_REQUIRES_OVERRIDABLE), "Unit" },
1572 { "Requisite", config_parse_deps, UINT_TO_PTR(UNIT_REQUISITE), "Unit" },
1573 { "RequisiteOverridable", config_parse_deps, UINT_TO_PTR(UNIT_REQUISITE_OVERRIDABLE), "Unit" },
1574 { "Wants", config_parse_deps, UINT_TO_PTR(UNIT_WANTS), "Unit" },
1575 { "Conflicts", config_parse_deps, UINT_TO_PTR(UNIT_CONFLICTS), "Unit" },
1576 { "Before", config_parse_deps, UINT_TO_PTR(UNIT_BEFORE), "Unit" },
1577 { "After", config_parse_deps, UINT_TO_PTR(UNIT_AFTER), "Unit" },
45fb0699 1578 { "OnFailure", config_parse_deps, UINT_TO_PTR(UNIT_ON_FAILURE), "Unit" },
09477267
LP		 1579 { "RecursiveStop", config_parse_bool, &u->meta.recursive_stop, "Unit" },
1580 { "StopWhenUnneeded", config_parse_bool, &u->meta.stop_when_unneeded, "Unit" },
b5e9dba8
LP		 1581 { "RefuseManualStart", config_parse_bool, &u->meta.refuse_manual_start, "Unit" },
1582 { "RefuseManualStop", config_parse_bool, &u->meta.refuse_manual_stop, "Unit" },
2528a7a6 1583 { "AllowIsolate", config_parse_bool, &u->meta.allow_isolate, "Unit" },
a40eb732 1584 { "DefaultDependencies", config_parse_bool, &u->meta.default_dependencies, "Unit" },
3b6fdb5b 1585 { "IgnoreDependencyFailure",config_parse_bool, &u->meta.ignore_dependency_failure, "Unit" },
faf919f1 1586 { "JobTimeoutSec", config_parse_usec, &u->meta.job_timeout, "Unit" },
1c01f82b
LP		 1587
1588 { "PIDFile", config_parse_path, &u->service.pid_file, "Service" },
1589 { "ExecStartPre", config_parse_exec, u->service.exec_command+SERVICE_EXEC_START_PRE, "Service" },
1590 { "ExecStart", config_parse_exec, u->service.exec_command+SERVICE_EXEC_START, "Service" },
1591 { "ExecStartPost", config_parse_exec, u->service.exec_command+SERVICE_EXEC_START_POST, "Service" },
1592 { "ExecReload", config_parse_exec, u->service.exec_command+SERVICE_EXEC_RELOAD, "Service" },
1593 { "ExecStop", config_parse_exec, u->service.exec_command+SERVICE_EXEC_STOP, "Service" },
1594 { "ExecStopPost", config_parse_exec, u->service.exec_command+SERVICE_EXEC_STOP_POST, "Service" },
1595 { "RestartSec", config_parse_usec, &u->service.restart_usec, "Service" },
1596 { "TimeoutSec", config_parse_usec, &u->service.timeout_usec, "Service" },
0d87eb42
LP		 1597 { "Type", config_parse_service_type, &u->service.type, "Service" },
1598 { "Restart", config_parse_service_restart, &u->service.restart, "Service" },
81a2b7ce
LP		 1599 { "PermissionsStartOnly", config_parse_bool, &u->service.permissions_start_only, "Service" },
1600 { "RootDirectoryStartOnly", config_parse_bool, &u->service.root_directory_start_only, "Service" },
02ee865a 1601 { "RemainAfterExit", config_parse_bool, &u->service.remain_after_exit, "Service" },
a9a1e00a 1602 { "SysVStartPriority", config_parse_sysv_priority, &u->service.sysv_start_priority, "Service" },
b778d555 1603 { "NonBlocking", config_parse_bool, &u->service.exec_context.non_blocking, "Service" },
f2d3769a 1604 { "BusName", config_parse_string_printf, &u->service.bus_name, "Service" },
c952c6ec 1605 { "NotifyAccess", config_parse_notify_access, &u->service.notify_access, "Service" },
87f0e418
LP		 1606 EXEC_CONTEXT_CONFIG_ITEMS(u->service.exec_context, "Service"),
1607
1c01f82b
LP		 1608 { "ListenStream", config_parse_listen, &u->socket, "Socket" },
1609 { "ListenDatagram", config_parse_listen, &u->socket, "Socket" },
1610 { "ListenSequentialPacket", config_parse_listen, &u->socket, "Socket" },
1611 { "ListenFIFO", config_parse_listen, &u->socket, "Socket" },
1612 { "BindIPv6Only", config_parse_socket_bind, &u->socket, "Socket" },
1613 { "Backlog", config_parse_unsigned, &u->socket.backlog, "Socket" },
acbb0225 1614 { "BindToDevice", config_parse_bindtodevice, &u->socket, "Socket" },
1c01f82b
LP		 1615 { "ExecStartPre", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_START_PRE, "Socket" },
1616 { "ExecStartPost", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_START_POST, "Socket" },
1617 { "ExecStopPre", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_STOP_PRE, "Socket" },
1618 { "ExecStopPost", config_parse_exec, u->socket.exec_command+SOCKET_EXEC_STOP_POST, "Socket" },
108736d0 1619 { "TimeoutSec", config_parse_usec, &u->socket.timeout_usec, "Socket" },
b5a0699f
LP		 1620 { "DirectoryMode", config_parse_mode, &u->socket.directory_mode, "Socket" },
1621 { "SocketMode", config_parse_mode, &u->socket.socket_mode, "Socket" },
4f2d528d 1622 { "Accept", config_parse_bool, &u->socket.accept, "Socket" },
6cf6bbc2 1623 { "MaxConnections", config_parse_unsigned, &u->socket.max_connections, "Socket" },
4fd5948e
LP		 1624 { "KeepAlive", config_parse_bool, &u->socket.keep_alive, "Socket" },
1625 { "Priority", config_parse_int, &u->socket.priority, "Socket" },
1626 { "ReceiveBuffer", config_parse_size, &u->socket.receive_buffer, "Socket" },
1627 { "SendBuffer", config_parse_size, &u->socket.send_buffer, "Socket" },
1628 { "IPTOS", config_parse_ip_tos, &u->socket.ip_tos, "Socket" },
1629 { "IPTTL", config_parse_int, &u->socket.ip_ttl, "Socket" },
1630 { "Mark", config_parse_int, &u->socket.mark, "Socket" },
1631 { "PipeSize", config_parse_size, &u->socket.pipe_size, "Socket" },
1632 { "FreeBind", config_parse_bool, &u->socket.free_bind, "Socket" },
cebf8b20 1633 { "TCPCongestion", config_parse_string, &u->socket.tcp_congestion, "Socket" },
87f0e418
LP		 1634 EXEC_CONTEXT_CONFIG_ITEMS(u->socket.exec_context, "Socket"),
1635
e537352b
LP		 1636 { "What", config_parse_string, &u->mount.parameters_fragment.what, "Mount" },
1637 { "Where", config_parse_path, &u->mount.where, "Mount" },
1638 { "Options", config_parse_string, &u->mount.parameters_fragment.options, "Mount" },
1639 { "Type", config_parse_string, &u->mount.parameters_fragment.fstype, "Mount" },
1640 { "TimeoutSec", config_parse_usec, &u->mount.timeout_usec, "Mount" },
3e5235b0 1641 { "DirectoryMode", config_parse_mode, &u->mount.directory_mode, "Mount" },
e537352b 1642 EXEC_CONTEXT_CONFIG_ITEMS(u->mount.exec_context, "Mount"),
034c6ed7 1643
8d567588 1644 { "Where", config_parse_path, &u->automount.where, "Automount" },
1cf18f27 1645 { "DirectoryMode", config_parse_mode, &u->automount.directory_mode, "Automount" },
8d567588 1646
01f78473
LP		 1647 { "What", config_parse_path, &u->swap.parameters_fragment.what, "Swap" },
1648 { "Priority", config_parse_int, &u->swap.parameters_fragment.priority, "Swap" },
1649
03fae018
LP		 1650 { "OnActiveSec", config_parse_timer, &u->timer, "Timer" },
1651 { "OnBootSec", config_parse_timer, &u->timer, "Timer" },
1652 { "OnStartupSec", config_parse_timer, &u->timer, "Timer" },
1653 { "OnUnitActiveSec", config_parse_timer, &u->timer, "Timer" },
1654 { "OnUnitInactiveSec", config_parse_timer, &u->timer, "Timer" },
01f78473 1655 { "Unit", config_parse_timer_unit, &u->timer, "Timer" },
07b0b134 1656
01f78473
LP		 1657 { "PathExists", config_parse_path_spec, &u->path, "Path" },
1658 { "PathChanged", config_parse_path_spec, &u->path, "Path" },
1659 { "DirectoryNotEmpty", config_parse_path_spec, &u->path, "Path" },
1660 { "Unit", config_parse_path_unit, &u->path, "Path" },
871d7de4 1661
10e87ee7
LP		 1662 /* The [Install] section is ignored here. */
1663 { "Alias", NULL, NULL, "Install" },
1664 { "WantedBy", NULL, NULL, "Install" },
1665 { "Also", NULL, NULL, "Install" },
1666
3efd4195
LP		 1667 { NULL, NULL, NULL, NULL }
1668 };
1669
034c6ed7 1670#undef EXEC_CONTEXT_CONFIG_ITEMS
42f4e3c4 1671
10e87ee7 1672 const char *sections[4];
0301abf4 1673 int r;
87f0e418 1674 Set *symlink_names;
23a177ef
LP		 1675 FILE *f = NULL;
1676 char *filename = NULL, *id = NULL;
1677 Unit *merged;
45fb0699 1678 struct stat st;
23a177ef 1679
e537352b
LP		 1680 if (!u) {
1681 /* Dirty dirty hack. */
1682 dump_items((FILE*) path, items);
1683 return 0;
1684 }
1685
23a177ef 1686 assert(u);
e537352b 1687 assert(path);
3efd4195 1688
09477267 1689 sections[0] = "Unit";
87f0e418 1690 sections[1] = section_table[u->meta.type];
10e87ee7
LP		 1691 sections[2] = "Install";
1692 sections[3] = NULL;
42f4e3c4 1693
87f0e418
LP		 1694 if (!(symlink_names = set_new(string_hash_func, string_compare_func)))
1695 return -ENOMEM;
3efd4195 1696
036643a2
LP		 1697 if (path_is_absolute(path)) {
1698
1699 if (!(filename = strdup(path))) {
1700 r = -ENOMEM;
1701 goto finish;
1702 }
1703
1704 if ((r = open_follow(&filename, &f, symlink_names, &id)) < 0) {
1705 free(filename);
1706 filename = NULL;
1707
1708 if (r != -ENOENT)
1709 goto finish;
1710 }
1711
1712 } else {
1713 char **p;
1714
84e3543e 1715 STRV_FOREACH(p, u->meta.manager->lookup_paths.unit_path) {
036643a2
LP		 1716
1717 /* Instead of opening the path right away, we manually
1718 * follow all symlinks and add their name to our unit
1719 * name set while doing so */
1720 if (!(filename = path_make_absolute(path, *p))) {
1721 r = -ENOMEM;
1722 goto finish;
1723 }
1724
fe51822e
LP		 1725 if (u->meta.manager->unit_path_cache &&
1726 !set_get(u->meta.manager->unit_path_cache, filename))
1727 r = -ENOENT;
1728 else
1729 r = open_follow(&filename, &f, symlink_names, &id);
1730
1731 if (r < 0) {
036643a2
LP		 1732 char *sn;
1733
1734 free(filename);
1735 filename = NULL;
1736
1737 if (r != -ENOENT)
1738 goto finish;
1739
1740 /* Empty the symlink names for the next run */
1741 while ((sn = set_steal_first(symlink_names)))
1742 free(sn);
3efd4195 1743
036643a2
LP		 1744 continue;
1745 }
1746
1747 break;
1748 }
1749 }
034c6ed7 1750
036643a2 1751 if (!filename) {
8f05424d 1752 /* Hmm, no suitable file found? */
23a177ef 1753 r = 0;
0301abf4
LP		 1754 goto finish;
1755 }
87f0e418 1756
23a177ef
LP		 1757 merged = u;
1758 if ((r = merge_by_names(&merged, symlink_names, id)) < 0)
0301abf4 1759 goto finish;
87f0e418 1760
23a177ef 1761 if (merged != u) {
e537352b 1762 u->meta.load_state = UNIT_MERGED;
23a177ef
LP		 1763 r = 0;
1764 goto finish;
034c6ed7
LP		 1765 }
1766
45fb0699
LP		 1767 zero(st);
1768 if (fstat(fileno(f), &st) < 0) {
1769 r = -errno;
1770 goto finish;
1771 }
1772
23a177ef 1773 /* Now, parse the file contents */
10e87ee7 1774 if ((r = config_parse(filename, f, sections, items, false, u)) < 0)
23a177ef 1775 goto finish;
b08d03ff 1776
6be1e7d5
LP		 1777 free(u->meta.fragment_path);
1778 u->meta.fragment_path = filename;
0301abf4 1779 filename = NULL;
87f0e418 1780
45fb0699
LP		 1781 u->meta.fragment_mtime = timespec_load(&st.st_mtim);
1782
e537352b 1783 u->meta.load_state = UNIT_LOADED;
23a177ef 1784 r = 0;
87f0e418
LP		 1785
1786finish:
53ec43c6 1787 set_free_free(symlink_names);
0301abf4
LP		 1788 free(filename);
1789
23a177ef
LP		 1790 if (f)
1791 fclose(f);
1792
0301abf4
LP		 1793 return r;
1794}
1795
e537352b 1796int unit_load_fragment(Unit *u) {
23a177ef 1797 int r;
294d81f1
LP		 1798 Iterator i;
1799 const char *t;
0301abf4
LP		 1800
1801 assert(u);
294d81f1
LP		 1802 assert(u->meta.load_state == UNIT_STUB);
1803 assert(u->meta.id);
23a177ef 1804
294d81f1
LP		 1805 /* First, try to find the unit under its id. We always look
1806 * for unit files in the default directories, to make it easy
1807 * to override things by placing things in /etc/systemd/system */
1808 if ((r = load_from_path(u, u->meta.id)) < 0)
1809 return r;
1810
1811 /* Try to find an alias we can load this with */
1812 if (u->meta.load_state == UNIT_STUB)
1813 SET_FOREACH(t, u->meta.names, i) {
1814
1815 if (t == u->meta.id)
1816 continue;
1817
1818 if ((r = load_from_path(u, t)) < 0)
1819 return r;
1820
1821 if (u->meta.load_state != UNIT_STUB)
1822 break;
1823 }
23a177ef 1824
294d81f1
LP		 1825 /* And now, try looking for it under the suggested (originally linked) path */
1826 if (u->meta.load_state == UNIT_STUB && u->meta.fragment_path)
e537352b 1827 if ((r = load_from_path(u, u->meta.fragment_path)) < 0)
23a177ef 1828 return r;
0301abf4 1829
294d81f1
LP		 1830 /* Look for a template */
1831 if (u->meta.load_state == UNIT_STUB && u->meta.instance) {
1832 char *k;
1833
1834 if (!(k = unit_name_template(u->meta.id)))
1835 return -ENOMEM;
1836
1837 r = load_from_path(u, k);
1838 free(k);
0301abf4 1839
294d81f1 1840 if (r < 0)
9e2f7c11 1841 return r;
890f434c 1842
e537352b 1843 if (u->meta.load_state == UNIT_STUB)
23a177ef 1844 SET_FOREACH(t, u->meta.names, i) {
87f0e418 1845
9e2f7c11 1846 if (t == u->meta.id)
23a177ef 1847 continue;
071830ff 1848
294d81f1
LP		 1849 if (!(k = unit_name_template(t)))
1850 return -ENOMEM;
1851
1852 r = load_from_path(u, k);
1853 free(k);
1854
1855 if (r < 0)
23a177ef 1856 return r;
890f434c 1857
e537352b 1858 if (u->meta.load_state != UNIT_STUB)
23a177ef
LP		 1859 break;
1860 }
071830ff
LP		 1861 }
1862
23a177ef 1863 return 0;
3efd4195 1864}
e537352b
LP		 1865
1866void unit_dump_config_items(FILE *f) {
1867 /* OK, this wins a prize for extreme ugliness. */
1868
1869 load_from_path(NULL, (const void*) f);
1870}
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