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core: define "exit" and "exit-force" actions for user units and only accept that
[thirdparty/systemd.git] / src / core / load-fragment.c
CommitLineData
53e1b683 1/* SPDX-License-Identifier: LGPL-2.1+ */
a7334b09 2/***
96b2fb93 3 Copyright © 2012 Holger Hans Peter Freyther
a7334b09
LP		 4***/
5
3efd4195 6#include <errno.h>
87f0e418 7#include <fcntl.h>
25e870b5 8#include <linux/fs.h>
5f5d8eab 9#include <linux/oom.h>
349cc4a5 10#if HAVE_SECCOMP
618234a5
LP		 11#include <seccomp.h>
12#endif
5f5d8eab
LP		 13#include <sched.h>
14#include <string.h>
3d57c6ab 15#include <sys/resource.h>
5f5d8eab 16#include <sys/stat.h>
3efd4195 17
5f5d8eab 18#include "af-list.h"
cf0fbc49 19#include "alloc-util.h"
57b7a260 20#include "all-units.h"
5f5d8eab
LP		 21#include "bus-error.h"
22#include "bus-internal.h"
23#include "bus-util.h"
24#include "cap-list.h"
a103496c 25#include "capability-util.h"
5f5d8eab 26#include "cgroup.h"
3efd4195 27#include "conf-parser.h"
618234a5 28#include "cpu-set-util.h"
5f5d8eab
LP		 29#include "env-util.h"
30#include "errno-list.h"
4f5dd394 31#include "escape.h"
3ffd4af2 32#include "fd-util.h"
f4f15635 33#include "fs-util.h"
08f3be7a 34#include "hexdecoct.h"
d3070fbd 35#include "io-util.h"
9eba9da4 36#include "ioprio.h"
d3070fbd 37#include "journal-util.h"
3ffd4af2 38#include "load-fragment.h"
5f5d8eab 39#include "log.h"
94f04347 40#include "missing.h"
83555251 41#include "mount-util.h"
6bedfcbb 42#include "parse-util.h"
9eb977db 43#include "path-util.h"
7b3e062c 44#include "process-util.h"
349cc4a5 45#if HAVE_SECCOMP
57183d11
LP		 46#include "seccomp-util.h"
47#endif
5f5d8eab 48#include "securebits.h"
07d46372 49#include "securebits-util.h"
5f5d8eab 50#include "signal-util.h"
e045e325 51#include "socket-protocol-list.h"
8fcde012 52#include "stat-util.h"
07630cea 53#include "string-util.h"
5f5d8eab
LP		 54#include "strv.h"
55#include "unit-name.h"
56#include "unit-printf.h"
66dccd8d 57#include "user-util.h"
49cf4170 58#include "web-util.h"
57183d11 59
53577580
YW		 60static int supported_socket_protocol_from_string(const char *s) {
61 int r;
62
63 if (isempty(s))
64 return IPPROTO_IP;
65
66 r = socket_protocol_from_name(s);
67 if (r < 0)
68 return -EINVAL;
69 if (!IN_SET(r, IPPROTO_UDPLITE, IPPROTO_SCTP))
70 return -EPROTONOSUPPORT;
71
72 return r;
73}
74
75DEFINE_CONFIG_PARSE(config_parse_socket_protocol, supported_socket_protocol_from_string, "Failed to parse socket protocol");
76DEFINE_CONFIG_PARSE(config_parse_exec_secure_bits, secure_bits_from_string, "Failed to parse secure bits");
5afe510c 77DEFINE_CONFIG_PARSE_ENUM(config_parse_collect_mode, collect_mode, CollectMode, "Failed to parse garbage collection mode");
53577580 78DEFINE_CONFIG_PARSE_ENUM(config_parse_device_policy, cgroup_device_policy, CGroupDevicePolicy, "Failed to parse device policy");
53577580
YW		 79DEFINE_CONFIG_PARSE_ENUM(config_parse_exec_keyring_mode, exec_keyring_mode, ExecKeyringMode, "Failed to parse keyring mode");
80DEFINE_CONFIG_PARSE_ENUM(config_parse_exec_utmp_mode, exec_utmp_mode, ExecUtmpMode, "Failed to parse utmp mode");
81DEFINE_CONFIG_PARSE_ENUM(config_parse_job_mode, job_mode, JobMode, "Failed to parse job mode");
82DEFINE_CONFIG_PARSE_ENUM(config_parse_kill_mode, kill_mode, KillMode, "Failed to parse kill mode");
83DEFINE_CONFIG_PARSE_ENUM(config_parse_notify_access, notify_access, NotifyAccess, "Failed to parse notify access specifier");
1e8c7bd5
YW		 84DEFINE_CONFIG_PARSE_ENUM(config_parse_protect_home, protect_home, ProtectHome, "Failed to parse protect home value");
85DEFINE_CONFIG_PARSE_ENUM(config_parse_protect_system, protect_system, ProtectSystem, "Failed to parse protect system value");
53577580
YW		 86DEFINE_CONFIG_PARSE_ENUM(config_parse_runtime_preserve_mode, exec_preserve_mode, ExecPreserveMode, "Failed to parse runtime directory preserve mode");
87DEFINE_CONFIG_PARSE_ENUM(config_parse_service_type, service_type, ServiceType, "Failed to parse service type");
88DEFINE_CONFIG_PARSE_ENUM(config_parse_service_restart, service_restart, ServiceRestart, "Failed to parse service restart specifier");
89DEFINE_CONFIG_PARSE_ENUM(config_parse_socket_bind, socket_address_bind_ipv6_only_or_bool, SocketAddressBindIPv6Only, "Failed to parse bind IPv6 only value");
90DEFINE_CONFIG_PARSE_ENUM_WITH_DEFAULT(config_parse_ip_tos, ip_tos, int, -1, "Failed to parse IP TOS value");
91DEFINE_CONFIG_PARSE_PTR(config_parse_blockio_weight, cg_blkio_weight_parse, uint64_t, "Invalid block IO weight");
92DEFINE_CONFIG_PARSE_PTR(config_parse_cg_weight, cg_weight_parse, uint64_t, "Invalid weight");
93DEFINE_CONFIG_PARSE_PTR(config_parse_cpu_shares, cg_cpu_shares_parse, uint64_t, "Invalid CPU shares");
94DEFINE_CONFIG_PARSE_PTR(config_parse_exec_mount_flags, mount_propagation_flags_from_string, unsigned long, "Failed to parse mount flag");
5afe510c 95
f32b43bd
LP		 96int config_parse_unit_deps(
97 const char *unit,
98 const char *filename,
99 unsigned line,
100 const char *section,
101 unsigned section_line,
102 const char *lvalue,
103 int ltype,
104 const char *rvalue,
105 void *data,
106 void *userdata) {
3efd4195 107
f975e971 108 UnitDependency d = ltype;
87f0e418 109 Unit *u = userdata;
3d793d29 110 const char *p;
3efd4195
LP		 111
112 assert(filename);
113 assert(lvalue);
114 assert(rvalue);
3efd4195 115
3d793d29 116 p = rvalue;
9ed794a3 117 for (;;) {
3d793d29 118 _cleanup_free_ char *word = NULL, *k = NULL;
3efd4195 119 int r;
3efd4195 120
c89f52ac 121 r = extract_first_word(&p, &word, NULL, EXTRACT_RETAIN_ESCAPE);
3d793d29
SS		 122 if (r == 0)
123 break;
124 if (r == -ENOMEM)
74051b9b 125 return log_oom();
3d793d29
SS		 126 if (r < 0) {
127 log_syntax(unit, LOG_ERR, filename, line, r, "Invalid syntax, ignoring: %s", rvalue);
128 break;
129 }
3efd4195 130
3d793d29 131 r = unit_name_printf(u, word, &k);
19f6d710 132 if (r < 0) {
063c4b1a 133 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", word);
19f6d710
LP		 134 continue;
135 }
9e2f7c11 136
35d8c19a 137 r = unit_add_dependency_by_name(u, d, k, true, UNIT_DEPENDENCY_FILE);
57020a3a 138 if (r < 0)
12ca818f 139 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to add dependency on %s, ignoring: %m", k);
3efd4195
LP		 140 }
141
142 return 0;
143}
144
f32b43bd
LP		 145int config_parse_obsolete_unit_deps(
146 const char *unit,
147 const char *filename,
148 unsigned line,
149 const char *section,
150 unsigned section_line,
151 const char *lvalue,
152 int ltype,
153 const char *rvalue,
154 void *data,
155 void *userdata) {
156
157 log_syntax(unit, LOG_WARNING, filename, line, 0,
158 "Unit dependency type %s= is obsolete, replacing by %s=, please update your unit file", lvalue, unit_dependency_to_string(ltype));
159
160 return config_parse_unit_deps(unit, filename, line, section, section_line, lvalue, ltype, rvalue, data, userdata);
161}
162
b02cb41c
LP		 163int config_parse_unit_string_printf(
164 const char *unit,
165 const char *filename,
166 unsigned line,
167 const char *section,
168 unsigned section_line,
169 const char *lvalue,
170 int ltype,
171 const char *rvalue,
172 void *data,
173 void *userdata) {
932921b5 174
74051b9b 175 _cleanup_free_ char *k = NULL;
b02cb41c 176 Unit *u = userdata;
19f6d710 177 int r;
932921b5
LP		 178
179 assert(filename);
180 assert(lvalue);
181 assert(rvalue);
f2d3769a 182 assert(u);
932921b5 183
19f6d710 184 r = unit_full_printf(u, rvalue, &k);
b02cb41c 185 if (r < 0) {
063c4b1a 186 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue);
b02cb41c
LP		 187 return 0;
188 }
932921b5 189
b02cb41c 190 return config_parse_string(unit, filename, line, section, section_line, lvalue, ltype, k, data, userdata);
932921b5
LP		 191}
192
12ca818f
LP		 193int config_parse_unit_strv_printf(
194 const char *unit,
195 const char *filename,
196 unsigned line,
197 const char *section,
198 unsigned section_line,
199 const char *lvalue,
200 int ltype,
201 const char *rvalue,
202 void *data,
203 void *userdata) {
8fef7659
LP		 204
205 Unit *u = userdata;
74051b9b 206 _cleanup_free_ char *k = NULL;
19f6d710 207 int r;
8fef7659
LP		 208
209 assert(filename);
210 assert(lvalue);
211 assert(rvalue);
212 assert(u);
213
19f6d710 214 r = unit_full_printf(u, rvalue, &k);
12ca818f 215 if (r < 0) {
063c4b1a 216 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue);
12ca818f
LP		 217 return 0;
218 }
8fef7659 219
12ca818f 220 return config_parse_strv(unit, filename, line, section, section_line, lvalue, ltype, k, data, userdata);
8fef7659
LP		 221}
222
5f5d8eab
LP		 223int config_parse_unit_path_printf(
224 const char *unit,
225 const char *filename,
226 unsigned line,
227 const char *section,
228 unsigned section_line,
229 const char *lvalue,
230 int ltype,
231 const char *rvalue,
232 void *data,
233 void *userdata) {
6ea832a2 234
74051b9b 235 _cleanup_free_ char *k = NULL;
811ba7a0 236 Unit *u = userdata;
19f6d710 237 int r;
2c75fb73 238 bool fatal = ltype;
6ea832a2
LP		 239
240 assert(filename);
241 assert(lvalue);
242 assert(rvalue);
6ea832a2
LP		 243 assert(u);
244
e3c3d676
ZJS		 245 /* Let's not bother with anything that is too long */
246 if (strlen(rvalue) >= PATH_MAX) {
247 log_syntax(unit, LOG_ERR, filename, line, 0,
248 "%s value too long%s.",
249 lvalue, fatal ? "" : ", ignoring");
250 return fatal ? -ENAMETOOLONG : 0;
251 }
252
19f6d710 253 r = unit_full_printf(u, rvalue, &k);
811ba7a0 254 if (r < 0) {
2c75fb73 255 log_syntax(unit, LOG_ERR, filename, line, r,
063c4b1a 256 "Failed to resolve unit specifiers in '%s'%s: %m",
e3c3d676 257 rvalue, fatal ? "" : ", ignoring");
2c75fb73 258 return fatal ? -ENOEXEC : 0;
811ba7a0 259 }
6ea832a2 260
811ba7a0
LP		 261 return config_parse_path(unit, filename, line, section, section_line, lvalue, ltype, k, data, userdata);
262}
263
264int config_parse_unit_path_strv_printf(
265 const char *unit,
266 const char *filename,
267 unsigned line,
268 const char *section,
269 unsigned section_line,
270 const char *lvalue,
271 int ltype,
272 const char *rvalue,
273 void *data,
274 void *userdata) {
275
a2a5291b 276 char ***x = data;
811ba7a0 277 Unit *u = userdata;
811ba7a0 278 int r;
035fe294 279 const char *p;
811ba7a0
LP		 280
281 assert(filename);
282 assert(lvalue);
283 assert(rvalue);
284 assert(u);
285
499295fb 286 if (isempty(rvalue)) {
9f2d41a6 287 *x = strv_free(*x);
499295fb
YW		 288 return 0;
289 }
290
035fe294
ZJS		 291 for (p = rvalue;;) {
292 _cleanup_free_ char *word = NULL, *k = NULL;
811ba7a0 293
035fe294
ZJS		 294 r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES);
295 if (r == 0)
296 return 0;
297 if (r == -ENOMEM)
298 return log_oom();
299 if (r < 0) {
300 log_syntax(unit, LOG_WARNING, filename, line, r,
301 "Invalid syntax, ignoring: %s", rvalue);
302 return 0;
303 }
811ba7a0 304
035fe294 305 r = unit_full_printf(u, word, &k);
811ba7a0 306 if (r < 0) {
035fe294 307 log_syntax(unit, LOG_ERR, filename, line, r,
063c4b1a 308 "Failed to resolve unit specifiers in '%s', ignoring: %m", word);
811ba7a0
LP		 309 return 0;
310 }
311
2f4d31c1
YW		 312 r = path_simplify_and_warn(k, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
313 if (r < 0)
811ba7a0 314 return 0;
811ba7a0
LP		 315
316 r = strv_push(x, k);
317 if (r < 0)
318 return log_oom();
811ba7a0
LP		 319 k = NULL;
320 }
6ea832a2
LP		 321}
322
e8e581bf
ZJS		 323int config_parse_socket_listen(const char *unit,
324 const char *filename,
325 unsigned line,
326 const char *section,
71a61510 327 unsigned section_line,
e8e581bf
ZJS		 328 const char *lvalue,
329 int ltype,
330 const char *rvalue,
331 void *data,
332 void *userdata) {
42f4e3c4 333
b1389b0d
ZJS		 334 _cleanup_free_ SocketPort *p = NULL;
335 SocketPort *tail;
542563ba 336 Socket *s;
19f6d710 337 int r;
16354eff 338
42f4e3c4
LP		 339 assert(filename);
340 assert(lvalue);
341 assert(rvalue);
342 assert(data);
343
595ed347 344 s = SOCKET(data);
542563ba 345
74051b9b
LP		 346 if (isempty(rvalue)) {
347 /* An empty assignment removes all ports */
348 socket_free_ports(s);
349 return 0;
350 }
351
7f110ff9
LP		 352 p = new0(SocketPort, 1);
353 if (!p)
74051b9b 354 return log_oom();
916abb21 355
74051b9b 356 if (ltype != SOCKET_SOCKET) {
2f4d31c1 357 _cleanup_free_ char *k = NULL;
916abb21 358
2f4d31c1 359 r = unit_full_printf(UNIT(s), rvalue, &k);
19f6d710 360 if (r < 0) {
063c4b1a 361 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue);
12ca818f 362 return 0;
916abb21
LP		 363 }
364
2f4d31c1
YW		 365 r = path_simplify_and_warn(k, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
366 if (r < 0)
367 return 0;
368
369 free_and_replace(p->path, k);
370 p->type = ltype;
916abb21 371
7a22745a 372 } else if (streq(lvalue, "ListenNetlink")) {
74051b9b 373 _cleanup_free_ char *k = NULL;
1fd45a90 374
19f6d710 375 r = unit_full_printf(UNIT(s), rvalue, &k);
12ca818f 376 if (r < 0) {
063c4b1a 377 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue);
12ca818f
LP		 378 return 0;
379 }
7a22745a 380
12ca818f 381 r = socket_address_parse_netlink(&p->address, k);
1fd45a90 382 if (r < 0) {
063c4b1a 383 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse address value in '%s', ignoring: %m", k);
7a22745a
LP		 384 return 0;
385 }
386
2f4d31c1
YW		 387 p->type = SOCKET_SOCKET;
388
542563ba 389 } else {
74051b9b 390 _cleanup_free_ char *k = NULL;
1fd45a90 391
19f6d710 392 r = unit_full_printf(UNIT(s), rvalue, &k);
12ca818f 393 if (r < 0) {
063c4b1a 394 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue);
12ca818f
LP		 395 return 0;
396 }
542563ba 397
12ca818f 398 r = socket_address_parse_and_warn(&p->address, k);
1fd45a90 399 if (r < 0) {
f847b8b7 400 if (r != -EAFNOSUPPORT)
063c4b1a 401 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse address value in '%s', ignoring: %m", k);
c0b34696 402 return 0;
542563ba
LP		 403 }
404
405 if (streq(lvalue, "ListenStream"))
406 p->address.type = SOCK_STREAM;
407 else if (streq(lvalue, "ListenDatagram"))
408 p->address.type = SOCK_DGRAM;
409 else {
410 assert(streq(lvalue, "ListenSequentialPacket"));
411 p->address.type = SOCK_SEQPACKET;
412 }
413
414 if (socket_address_family(&p->address) != AF_LOCAL && p->address.type == SOCK_SEQPACKET) {
12ca818f 415 log_syntax(unit, LOG_ERR, filename, line, 0, "Address family not supported, ignoring: %s", rvalue);
c0b34696 416 return 0;
542563ba 417 }
2f4d31c1
YW		 418
419 p->type = SOCKET_SOCKET;
16354eff
LP		 420 }
421
542563ba 422 p->fd = -1;
15087cdb
PS		 423 p->auxiliary_fds = NULL;
424 p->n_auxiliary_fds = 0;
2e41a51e 425 p->socket = s;
49f91047 426
533f8a67
YW		 427 LIST_FIND_TAIL(port, s->ports, tail);
428 LIST_INSERT_AFTER(port, s->ports, tail, p);
429
b1389b0d 430 p = NULL;
542563ba 431
16354eff 432 return 0;
42f4e3c4
LP		 433}
434
41bf0590
LP		 435int config_parse_exec_nice(
436 const char *unit,
437 const char *filename,
438 unsigned line,
439 const char *section,
440 unsigned section_line,
441 const char *lvalue,
442 int ltype,
443 const char *rvalue,
444 void *data,
445 void *userdata) {
034c6ed7 446
fb33a393 447 ExecContext *c = data;
e8e581bf 448 int priority, r;
034c6ed7
LP		 449
450 assert(filename);
451 assert(lvalue);
452 assert(rvalue);
453 assert(data);
454
de5e6038
YW		 455 if (isempty(rvalue)) {
456 c->nice_set = false;
457 return 0;
458 }
459
41bf0590 460 r = parse_nice(rvalue, &priority);
e8e581bf 461 if (r < 0) {
41bf0590
LP		 462 if (r == -ERANGE)
463 log_syntax(unit, LOG_ERR, filename, line, r, "Nice priority out of range, ignoring: %s", rvalue);
464 else
063c4b1a 465 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse nice priority '%s', ignoring: %m", rvalue);
c0b34696 466 return 0;
034c6ed7
LP		 467 }
468
fb33a393 469 c->nice = priority;
71155933 470 c->nice_set = true;
fb33a393 471
034c6ed7
LP		 472 return 0;
473}
474
e9eb2c02
LP		 475int config_parse_exec_oom_score_adjust(
476 const char* unit,
477 const char *filename,
478 unsigned line,
479 const char *section,
480 unsigned section_line,
481 const char *lvalue,
482 int ltype,
483 const char *rvalue,
484 void *data,
485 void *userdata) {
034c6ed7 486
fb33a393 487 ExecContext *c = data;
e8e581bf 488 int oa, r;
034c6ed7
LP		 489
490 assert(filename);
491 assert(lvalue);
492 assert(rvalue);
493 assert(data);
494
e9eb2c02
LP		 495 if (isempty(rvalue)) {
496 c->oom_score_adjust_set = false;
c0b34696 497 return 0;
034c6ed7
LP		 498 }
499
e9eb2c02 500 r = parse_oom_score_adjust(rvalue, &oa);
e9eb2c02 501 if (r < 0) {
063c4b1a
YW		 502 if (r == -ERANGE)
503 log_syntax(unit, LOG_ERR, filename, line, r, "OOM score adjust value out of range, ignoring: %s", rvalue);
504 else
505 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse the OOM score adjust value '%s', ignoring: %m", rvalue);
c0b34696 506 return 0;
034c6ed7
LP		 507 }
508
dd6c17b1
LP		 509 c->oom_score_adjust = oa;
510 c->oom_score_adjust_set = true;
fb33a393 511
034c6ed7
LP		 512 return 0;
513}
514
527b7a42
LP		 515int config_parse_exec(
516 const char *unit,
517 const char *filename,
518 unsigned line,
519 const char *section,
520 unsigned section_line,
521 const char *lvalue,
522 int ltype,
523 const char *rvalue,
524 void *data,
525 void *userdata) {
034c6ed7 526
46a0d98a 527 ExecCommand **e = data;
5125e762 528 Unit *u = userdata;
46a0d98a
FB		 529 const char *p;
530 bool semicolon;
7f110ff9 531 int r;
034c6ed7
LP		 532
533 assert(filename);
534 assert(lvalue);
535 assert(rvalue);
61e5d8ed 536 assert(e);
034c6ed7 537
74051b9b 538 e += ltype;
c83f1f30 539 rvalue += strspn(rvalue, WHITESPACE);
c83f1f30 540
74051b9b
LP		 541 if (isempty(rvalue)) {
542 /* An empty assignment resets the list */
f1acf85a 543 *e = exec_command_free_list(*e);
74051b9b
LP		 544 return 0;
545 }
546
bd1b973f 547 p = rvalue;
46a0d98a 548 do {
dea7b6b0 549 _cleanup_free_ char *path = NULL, *firstword = NULL;
165a31c0
LP		 550 ExecCommandFlags flags = 0;
551 bool ignore = false, separate_argv0 = false;
dea7b6b0 552 _cleanup_free_ ExecCommand *nce = NULL;
46a0d98a
FB		 553 _cleanup_strv_free_ char **n = NULL;
554 size_t nlen = 0, nbufsize = 0;
5125e762 555 const char *f;
6c666e26 556
46a0d98a
FB		 557 semicolon = false;
558
9a82ab95 559 r = extract_first_word_and_warn(&p, &firstword, NULL, EXTRACT_QUOTES|EXTRACT_CUNESCAPE, unit, filename, line, rvalue);
46a0d98a
FB		 560 if (r <= 0)
561 return 0;
6c666e26 562
46a0d98a 563 f = firstword;
007f48bb 564 for (;;) {
165a31c0
LP		 565 /* We accept an absolute path as first argument. If it's prefixed with - and the path doesn't
566 * exist, we ignore it instead of erroring out; if it's prefixed with @, we allow overriding of
567 * argv[0]; if it's prefixed with +, it will be run with full privileges and no sandboxing; if
568 * it's prefixed with '!' we apply sandboxing, but do not change user/group credentials; if
569 * it's prefixed with '!!', then we apply user/group credentials if the kernel supports ambient
570 * capabilities -- if it doesn't we don't apply the credentials themselves, but do apply most
571 * other sandboxing, with some special exceptions for changing UID.
572 *
573 * The idea is that '!!' may be used to write services that can take benefit of systemd's
574 * UID/GID dropping if the kernel supports ambient creds, but provide an automatic fallback to
575 * privilege dropping within the daemon if the kernel does not offer that. */
576
577 if (*f == '-' && !(flags & EXEC_COMMAND_IGNORE_FAILURE)) {
578 flags |= EXEC_COMMAND_IGNORE_FAILURE;
46a0d98a 579 ignore = true;
165a31c0 580 } else if (*f == '@' && !separate_argv0)
46a0d98a 581 separate_argv0 = true;
165a31c0
LP		 582 else if (*f == '+' && !(flags & (EXEC_COMMAND_FULLY_PRIVILEGED|EXEC_COMMAND_NO_SETUID|EXEC_COMMAND_AMBIENT_MAGIC)))
583 flags |= EXEC_COMMAND_FULLY_PRIVILEGED;
584 else if (*f == '!' && !(flags & (EXEC_COMMAND_FULLY_PRIVILEGED|EXEC_COMMAND_NO_SETUID|EXEC_COMMAND_AMBIENT_MAGIC)))
585 flags |= EXEC_COMMAND_NO_SETUID;
586 else if (*f == '!' && !(flags & (EXEC_COMMAND_FULLY_PRIVILEGED|EXEC_COMMAND_AMBIENT_MAGIC))) {
587 flags &= ~EXEC_COMMAND_NO_SETUID;
588 flags |= EXEC_COMMAND_AMBIENT_MAGIC;
589 } else
46a0d98a 590 break;
313cefa1 591 f++;
61e5d8ed 592 }
46a0d98a 593
5125e762
LP		 594 r = unit_full_printf(u, f, &path);
595 if (r < 0) {
bb28e684 596 log_syntax(unit, LOG_ERR, filename, line, r,
063c4b1a 597 "Failed to resolve unit specifiers in '%s'%s: %m",
bb28e684
ZJS		 598 f, ignore ? ", ignoring" : "");
599 return ignore ? 0 : -ENOEXEC;
5125e762
LP		 600 }
601
602 if (isempty(path)) {
46a0d98a 603 /* First word is either "-" or "@" with no command. */
bb28e684 604 log_syntax(unit, LOG_ERR, filename, line, 0,
063c4b1a 605 "Empty path in command line%s: '%s'",
bb28e684
ZJS		 606 ignore ? ", ignoring" : "", rvalue);
607 return ignore ? 0 : -ENOEXEC;
b2fadec6 608 }
5125e762 609 if (!string_is_safe(path)) {
bb28e684 610 log_syntax(unit, LOG_ERR, filename, line, 0,
5008da1e
ZJS		 611 "Executable name contains special characters%s: %s",
612 ignore ? ", ignoring" : "", path);
bb28e684 613 return ignore ? 0 : -ENOEXEC;
46a0d98a 614 }
5125e762 615 if (endswith(path, "/")) {
bb28e684
ZJS		 616 log_syntax(unit, LOG_ERR, filename, line, 0,
617 "Executable path specifies a directory%s: %s",
5008da1e 618 ignore ? ", ignoring" : "", path);
bb28e684 619 return ignore ? 0 : -ENOEXEC;
46a0d98a 620 }
61e5d8ed 621
5008da1e
ZJS		 622 if (!path_is_absolute(path)) {
623 const char *prefix;
624 bool found = false;
625
626 if (!filename_is_valid(path)) {
627 log_syntax(unit, LOG_ERR, filename, line, 0,
628 "Neither a valid executable name nor an absolute path%s: %s",
629 ignore ? ", ignoring" : "", path);
630 return ignore ? 0 : -ENOEXEC;
631 }
632
633 /* Resolve a single-component name to a full path */
634 NULSTR_FOREACH(prefix, DEFAULT_PATH_NULSTR) {
635 _cleanup_free_ char *fullpath = NULL;
636
637 fullpath = strjoin(prefix, "/", path);
638 if (!fullpath)
639 return log_oom();
640
641 if (access(fullpath, F_OK) >= 0) {
642 free_and_replace(path, fullpath);
643 found = true;
644 break;
645 }
646 }
647
648 if (!found) {
649 log_syntax(unit, LOG_ERR, filename, line, 0,
650 "Executable \"%s\" not found in path \"%s\"%s",
651 path, DEFAULT_PATH, ignore ? ", ignoring" : "");
652 return ignore ? 0 : -ENOEXEC;
653 }
654 }
655
46a0d98a 656 if (!separate_argv0) {
5125e762
LP		 657 char *w = NULL;
658
46a0d98a
FB		 659 if (!GREEDY_REALLOC(n, nbufsize, nlen + 2))
660 return log_oom();
5125e762
LP		 661
662 w = strdup(path);
663 if (!w)
46a0d98a 664 return log_oom();
5125e762 665 n[nlen++] = w;
46a0d98a
FB		 666 n[nlen] = NULL;
667 }
7f110ff9 668
858d36c1 669 path_simplify(path, false);
46a0d98a 670
4b1c1753 671 while (!isempty(p)) {
5125e762 672 _cleanup_free_ char *word = NULL, *resolved = NULL;
46a0d98a
FB		 673
674 /* Check explicitly for an unquoted semicolon as
675 * command separator token. */
676 if (p[0] == ';' && (!p[1] || strchr(WHITESPACE, p[1]))) {
313cefa1 677 p++;
46a0d98a
FB		 678 p += strspn(p, WHITESPACE);
679 semicolon = true;
680 break;
c8539536 681 }
7f110ff9 682
5125e762
LP		 683 /* Check for \; explicitly, to not confuse it with \\; or "\;" or "\\;" etc.
684 * extract_first_word() would return the same for all of those. */
46a0d98a 685 if (p[0] == '\\' && p[1] == ';' && (!p[2] || strchr(WHITESPACE, p[2]))) {
5125e762
LP		 686 char *w;
687
46a0d98a
FB		 688 p += 2;
689 p += strspn(p, WHITESPACE);
5125e762 690
46a0d98a
FB		 691 if (!GREEDY_REALLOC(n, nbufsize, nlen + 2))
692 return log_oom();
5125e762
LP		 693
694 w = strdup(";");
695 if (!w)
46a0d98a 696 return log_oom();
5125e762 697 n[nlen++] = w;
46a0d98a
FB		 698 n[nlen] = NULL;
699 continue;
61e5d8ed 700 }
c8539536 701
9a82ab95 702 r = extract_first_word_and_warn(&p, &word, NULL, EXTRACT_QUOTES|EXTRACT_CUNESCAPE, unit, filename, line, rvalue);
46a0d98a
FB		 703 if (r == 0)
704 break;
5125e762 705 if (r < 0)
bb28e684 706 return ignore ? 0 : -ENOEXEC;
5125e762
LP		 707
708 r = unit_full_printf(u, word, &resolved);
709 if (r < 0) {
bb28e684 710 log_syntax(unit, LOG_ERR, filename, line, r,
063c4b1a 711 "Failed to resolve unit specifiers in %s%s: %m",
bb28e684
ZJS		 712 word, ignore ? ", ignoring" : "");
713 return ignore ? 0 : -ENOEXEC;
5125e762 714 }
46a0d98a
FB		 715
716 if (!GREEDY_REALLOC(n, nbufsize, nlen + 2))
717 return log_oom();
1cc6c93a
YW		 718
719 n[nlen++] = TAKE_PTR(resolved);
46a0d98a 720 n[nlen] = NULL;
61e5d8ed
LP		 721 }
722
46a0d98a 723 if (!n || !n[0]) {
bb28e684
ZJS		 724 log_syntax(unit, LOG_ERR, filename, line, 0,
725 "Empty executable name or zeroeth argument%s: %s",
726 ignore ? ", ignoring" : "", rvalue);
727 return ignore ? 0 : -ENOEXEC;
7f110ff9 728 }
6c666e26 729
7f110ff9 730 nce = new0(ExecCommand, 1);
46a0d98a
FB		 731 if (!nce)
732 return log_oom();
61e5d8ed 733
1cc6c93a
YW		 734 nce->argv = TAKE_PTR(n);
735 nce->path = TAKE_PTR(path);
165a31c0 736 nce->flags = flags;
034c6ed7 737
61e5d8ed 738 exec_command_append_list(e, nce);
01f78473 739
46a0d98a 740 /* Do not _cleanup_free_ these. */
46a0d98a 741 nce = NULL;
034c6ed7 742
46a0d98a
FB		 743 rvalue = p;
744 } while (semicolon);
034c6ed7 745
46a0d98a 746 return 0;
034c6ed7
LP		 747}
748
d31645ad
LP		 749int config_parse_socket_bindtodevice(
750 const char* unit,
751 const char *filename,
752 unsigned line,
753 const char *section,
754 unsigned section_line,
755 const char *lvalue,
756 int ltype,
757 const char *rvalue,
758 void *data,
759 void *userdata) {
acbb0225
LP		 760
761 Socket *s = data;
acbb0225
LP		 762
763 assert(filename);
764 assert(lvalue);
765 assert(rvalue);
766 assert(data);
767
063c4b1a
YW		 768 if (isempty(rvalue) || streq(rvalue, "*")) {
769 s->bind_to_device = mfree(s->bind_to_device);
770 return 0;
771 }
d31645ad 772
063c4b1a
YW		 773 if (!ifname_valid(rvalue)) {
774 log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid interface name, ignoring: %s", rvalue);
775 return 0;
776 }
acbb0225 777
3c381a67
YW		 778 if (free_and_strdup(&s->bind_to_device, rvalue) < 0)
779 return log_oom();
acbb0225
LP		 780
781 return 0;
782}
783
9bd6a50e
LP		 784int config_parse_exec_input(
785 const char *unit,
786 const char *filename,
787 unsigned line,
788 const char *section,
789 unsigned section_line,
790 const char *lvalue,
791 int ltype,
792 const char *rvalue,
793 void *data,
794 void *userdata) {
52c239d7 795
52c239d7 796 ExecContext *c = data;
2038c3f5
LP		 797 Unit *u = userdata;
798 const char *n;
799 ExecInput ei;
52c239d7
LB		 800 int r;
801
802 assert(data);
803 assert(filename);
804 assert(line);
805 assert(rvalue);
806
2038c3f5
LP		 807 n = startswith(rvalue, "fd:");
808 if (n) {
809 _cleanup_free_ char *resolved = NULL;
810
811 r = unit_full_printf(u, n, &resolved);
812 if (r < 0)
063c4b1a 813 return log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in '%s': %m", n);
2038c3f5
LP		 814
815 if (isempty(resolved))
816 resolved = mfree(resolved);
817 else if (!fdname_is_valid(resolved)) {
818 log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid file descriptor name: %s", resolved);
6f40aa45 819 return -ENOEXEC;
52c239d7 820 }
9bd6a50e 821
2038c3f5
LP		 822 free_and_replace(c->stdio_fdname[STDIN_FILENO], resolved);
823
824 ei = EXEC_INPUT_NAMED_FD;
825
826 } else if ((n = startswith(rvalue, "file:"))) {
827 _cleanup_free_ char *resolved = NULL;
828
829 r = unit_full_printf(u, n, &resolved);
52c239d7 830 if (r < 0)
063c4b1a 831 return log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in '%s': %m", n);
9bd6a50e 832
2f4d31c1
YW		 833 r = path_simplify_and_warn(resolved, PATH_CHECK_ABSOLUTE | PATH_CHECK_FATAL, unit, filename, line, lvalue);
834 if (r < 0)
6f40aa45 835 return -ENOEXEC;
2038c3f5
LP		 836
837 free_and_replace(c->stdio_file[STDIN_FILENO], resolved);
838
839 ei = EXEC_INPUT_FILE;
9bd6a50e 840
52c239d7 841 } else {
9bd6a50e
LP		 842 ei = exec_input_from_string(rvalue);
843 if (ei < 0) {
52c239d7 844 log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse input specifier, ignoring: %s", rvalue);
9bd6a50e
LP		 845 return 0;
846 }
52c239d7 847 }
9bd6a50e 848
2038c3f5 849 c->std_input = ei;
9bd6a50e 850 return 0;
52c239d7
LB		 851}
852
08f3be7a
LP		 853int config_parse_exec_input_text(
854 const char *unit,
855 const char *filename,
856 unsigned line,
857 const char *section,
858 unsigned section_line,
859 const char *lvalue,
860 int ltype,
861 const char *rvalue,
862 void *data,
863 void *userdata) {
864
865 _cleanup_free_ char *unescaped = NULL, *resolved = NULL;
866 ExecContext *c = data;
867 Unit *u = userdata;
868 size_t sz;
869 void *p;
870 int r;
871
872 assert(data);
873 assert(filename);
874 assert(line);
875 assert(rvalue);
876
877 if (isempty(rvalue)) {
878 /* Reset if the empty string is assigned */
879 c->stdin_data = mfree(c->stdin_data);
880 c->stdin_data_size = 0;
52c239d7
LB		 881 return 0;
882 }
08f3be7a
LP		 883
884 r = cunescape(rvalue, 0, &unescaped);
2038c3f5 885 if (r < 0)
063c4b1a 886 return log_syntax(unit, LOG_ERR, filename, line, r, "Failed to decode C escaped text '%s': %m", rvalue);
08f3be7a
LP		 887
888 r = unit_full_printf(u, unescaped, &resolved);
2038c3f5 889 if (r < 0)
063c4b1a 890 return log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in '%s': %m", unescaped);
08f3be7a
LP		 891
892 sz = strlen(resolved);
893 if (c->stdin_data_size + sz + 1 < c->stdin_data_size || /* check for overflow */
894 c->stdin_data_size + sz + 1 > EXEC_STDIN_DATA_MAX) {
2038c3f5
LP		 895 log_syntax(unit, LOG_ERR, filename, line, 0, "Standard input data too large (%zu), maximum of %zu permitted, ignoring.", c->stdin_data_size + sz, (size_t) EXEC_STDIN_DATA_MAX);
896 return -E2BIG;
08f3be7a
LP		 897 }
898
899 p = realloc(c->stdin_data, c->stdin_data_size + sz + 1);
900 if (!p)
901 return log_oom();
902
903 *((char*) mempcpy((char*) p + c->stdin_data_size, resolved, sz)) = '\n';
904
905 c->stdin_data = p;
906 c->stdin_data_size += sz + 1;
907
908 return 0;
52c239d7
LB		 909}
910
08f3be7a
LP		 911int config_parse_exec_input_data(
912 const char *unit,
913 const char *filename,
914 unsigned line,
915 const char *section,
916 unsigned section_line,
917 const char *lvalue,
918 int ltype,
919 const char *rvalue,
920 void *data,
921 void *userdata) {
922
08f3be7a
LP		 923 _cleanup_free_ void *p = NULL;
924 ExecContext *c = data;
925 size_t sz;
926 void *q;
927 int r;
928
929 assert(data);
930 assert(filename);
931 assert(line);
932 assert(rvalue);
933
934 if (isempty(rvalue)) {
935 /* Reset if the empty string is assigned */
936 c->stdin_data = mfree(c->stdin_data);
937 c->stdin_data_size = 0;
938 return 0;
939 }
940
081f36d8 941 r = unbase64mem(rvalue, (size_t) -1, &p, &sz);
2038c3f5 942 if (r < 0)
081f36d8 943 return log_syntax(unit, LOG_ERR, filename, line, r, "Failed to decode base64 data, ignoring: %s", rvalue);
08f3be7a
LP		 944
945 assert(sz > 0);
946
947 if (c->stdin_data_size + sz < c->stdin_data_size || /* check for overflow */
948 c->stdin_data_size + sz > EXEC_STDIN_DATA_MAX) {
2038c3f5
LP		 949 log_syntax(unit, LOG_ERR, filename, line, 0, "Standard input data too large (%zu), maximum of %zu permitted, ignoring.", c->stdin_data_size + sz, (size_t) EXEC_STDIN_DATA_MAX);
950 return -E2BIG;
08f3be7a
LP		 951 }
952
953 q = realloc(c->stdin_data, c->stdin_data_size + sz);
954 if (!q)
955 return log_oom();
956
957 memcpy((uint8_t*) q + c->stdin_data_size, p, sz);
958
959 c->stdin_data = q;
960 c->stdin_data_size += sz;
961
962 return 0;
963}
964
2038c3f5
LP		 965int config_parse_exec_output(
966 const char *unit,
967 const char *filename,
968 unsigned line,
969 const char *section,
970 unsigned section_line,
971 const char *lvalue,
972 int ltype,
973 const char *rvalue,
974 void *data,
975 void *userdata) {
976
977 _cleanup_free_ char *resolved = NULL;
978 const char *n;
52c239d7 979 ExecContext *c = data;
2038c3f5 980 Unit *u = userdata;
52c239d7 981 ExecOutput eo;
52c239d7
LB		 982 int r;
983
984 assert(data);
985 assert(filename);
986 assert(line);
987 assert(lvalue);
988 assert(rvalue);
989
2038c3f5
LP		 990 n = startswith(rvalue, "fd:");
991 if (n) {
992 r = unit_full_printf(u, n, &resolved);
993 if (r < 0)
063c4b1a 994 return log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in %s: %m", n);
2038c3f5
LP		 995
996 if (isempty(resolved))
997 resolved = mfree(resolved);
998 else if (!fdname_is_valid(resolved)) {
999 log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid file descriptor name: %s", resolved);
6f40aa45 1000 return -ENOEXEC;
52c239d7 1001 }
2038c3f5 1002
52c239d7 1003 eo = EXEC_OUTPUT_NAMED_FD;
2038c3f5
LP		 1004
1005 } else if ((n = startswith(rvalue, "file:"))) {
1006
1007 r = unit_full_printf(u, n, &resolved);
1008 if (r < 0)
063c4b1a 1009 return log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in %s: %m", n);
2038c3f5 1010
2f4d31c1
YW		 1011 r = path_simplify_and_warn(resolved, PATH_CHECK_ABSOLUTE | PATH_CHECK_FATAL, unit, filename, line, lvalue);
1012 if (r < 0)
6f40aa45 1013 return -ENOEXEC;
2038c3f5
LP		 1014
1015 eo = EXEC_OUTPUT_FILE;
1016
566b7d23
ZD		 1017 } else if ((n = startswith(rvalue, "append:"))) {
1018
1019 r = unit_full_printf(u, n, &resolved);
1020 if (r < 0)
1021 return log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in %s: %m", n);
1022
1023 r = path_simplify_and_warn(resolved, PATH_CHECK_ABSOLUTE | PATH_CHECK_FATAL, unit, filename, line, lvalue);
1024 if (r < 0)
1025 return -ENOEXEC;
1026
1027 eo = EXEC_OUTPUT_FILE_APPEND;
52c239d7
LB		 1028 } else {
1029 eo = exec_output_from_string(rvalue);
2038c3f5 1030 if (eo < 0) {
52c239d7
LB		 1031 log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse output specifier, ignoring: %s", rvalue);
1032 return 0;
1033 }
1034 }
1035
1036 if (streq(lvalue, "StandardOutput")) {
2038c3f5
LP		 1037 if (eo == EXEC_OUTPUT_NAMED_FD)
1038 free_and_replace(c->stdio_fdname[STDOUT_FILENO], resolved);
1039 else
1040 free_and_replace(c->stdio_file[STDOUT_FILENO], resolved);
1041
52c239d7 1042 c->std_output = eo;
2038c3f5 1043
52c239d7 1044 } else {
2038c3f5
LP		 1045 assert(streq(lvalue, "StandardError"));
1046
1047 if (eo == EXEC_OUTPUT_NAMED_FD)
1048 free_and_replace(c->stdio_fdname[STDERR_FILENO], resolved);
1049 else
1050 free_and_replace(c->stdio_file[STDERR_FILENO], resolved);
1051
1052 c->std_error = eo;
52c239d7 1053 }
2038c3f5
LP		 1054
1055 return 0;
52c239d7 1056}
87f0e418 1057
e8e581bf
ZJS		 1058int config_parse_exec_io_class(const char *unit,
1059 const char *filename,
1060 unsigned line,
1061 const char *section,
71a61510 1062 unsigned section_line,
e8e581bf
ZJS		 1063 const char *lvalue,
1064 int ltype,
1065 const char *rvalue,
1066 void *data,
1067 void *userdata) {
94f04347
LP		 1068
1069 ExecContext *c = data;
1070 int x;
1071
1072 assert(filename);
1073 assert(lvalue);
1074 assert(rvalue);
1075 assert(data);
1076
617d253a
YW		 1077 if (isempty(rvalue)) {
1078 c->ioprio_set = false;
1079 c->ioprio = IOPRIO_PRIO_VALUE(IOPRIO_CLASS_BE, 0);
1080 return 0;
1081 }
1082
f8b69d1d
MS		 1083 x = ioprio_class_from_string(rvalue);
1084 if (x < 0) {
12ca818f 1085 log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse IO scheduling class, ignoring: %s", rvalue);
c0b34696 1086 return 0;
0d87eb42 1087 }
94f04347
LP		 1088
1089 c->ioprio = IOPRIO_PRIO_VALUE(x, IOPRIO_PRIO_DATA(c->ioprio));
1090 c->ioprio_set = true;
1091
1092 return 0;
1093}
1094
e8e581bf
ZJS		 1095int config_parse_exec_io_priority(const char *unit,
1096 const char *filename,
1097 unsigned line,
1098 const char *section,
71a61510 1099 unsigned section_line,
e8e581bf
ZJS		 1100 const char *lvalue,
1101 int ltype,
1102 const char *rvalue,
1103 void *data,
1104 void *userdata) {
94f04347
LP		 1105
1106 ExecContext *c = data;
e8e581bf 1107 int i, r;
94f04347
LP		 1108
1109 assert(filename);
1110 assert(lvalue);
1111 assert(rvalue);
1112 assert(data);
1113
617d253a
YW		 1114 if (isempty(rvalue)) {
1115 c->ioprio_set = false;
1116 c->ioprio = IOPRIO_PRIO_VALUE(IOPRIO_CLASS_BE, 0);
1117 return 0;
1118 }
1119
7f452159
LP		 1120 r = ioprio_parse_priority(rvalue, &i);
1121 if (r < 0) {
12ca818f 1122 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse IO priority, ignoring: %s", rvalue);
c0b34696 1123 return 0;
071830ff
LP		 1124 }
1125
94f04347
LP		 1126 c->ioprio = IOPRIO_PRIO_VALUE(IOPRIO_PRIO_CLASS(c->ioprio), i);
1127 c->ioprio_set = true;
1128
071830ff
LP		 1129 return 0;
1130}
1131
e8e581bf
ZJS		 1132int config_parse_exec_cpu_sched_policy(const char *unit,
1133 const char *filename,
1134 unsigned line,
1135 const char *section,
71a61510 1136 unsigned section_line,
e8e581bf
ZJS		 1137 const char *lvalue,
1138 int ltype,
1139 const char *rvalue,
1140 void *data,
1141 void *userdata) {
9eba9da4 1142
94f04347
LP		 1143 ExecContext *c = data;
1144 int x;
1145
1146 assert(filename);
1147 assert(lvalue);
1148 assert(rvalue);
1149 assert(data);
1150
b00e1a9e
YW		 1151 if (isempty(rvalue)) {
1152 c->cpu_sched_set = false;
1153 c->cpu_sched_policy = SCHED_OTHER;
1154 c->cpu_sched_priority = 0;
1155 return 0;
1156 }
1157
f8b69d1d
MS		 1158 x = sched_policy_from_string(rvalue);
1159 if (x < 0) {
12ca818f 1160 log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse CPU scheduling policy, ignoring: %s", rvalue);
c0b34696 1161 return 0;
0d87eb42 1162 }
94f04347
LP		 1163
1164 c->cpu_sched_policy = x;
bb112710
HHPF		 1165 /* Moving to or from real-time policy? We need to adjust the priority */
1166 c->cpu_sched_priority = CLAMP(c->cpu_sched_priority, sched_get_priority_min(x), sched_get_priority_max(x));
94f04347
LP		 1167 c->cpu_sched_set = true;
1168
1169 return 0;
1170}
1171
e8e581bf
ZJS		 1172int config_parse_exec_cpu_sched_prio(const char *unit,
1173 const char *filename,
1174 unsigned line,
1175 const char *section,
71a61510 1176 unsigned section_line,
e8e581bf
ZJS		 1177 const char *lvalue,
1178 int ltype,
1179 const char *rvalue,
1180 void *data,
1181 void *userdata) {
9eba9da4
LP		 1182
1183 ExecContext *c = data;
e8e581bf 1184 int i, min, max, r;
9eba9da4
LP		 1185
1186 assert(filename);
1187 assert(lvalue);
1188 assert(rvalue);
1189 assert(data);
1190
e8e581bf
ZJS		 1191 r = safe_atoi(rvalue, &i);
1192 if (r < 0) {
063c4b1a 1193 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse CPU scheduling priority, ignoring: %s", rvalue);
c0b34696 1194 return 0;
94f04347 1195 }
9eba9da4 1196
bb112710
HHPF		 1197 /* On Linux RR/FIFO range from 1 to 99 and OTHER/BATCH may only be 0 */
1198 min = sched_get_priority_min(c->cpu_sched_policy);
1199 max = sched_get_priority_max(c->cpu_sched_policy);
1200
1201 if (i < min || i > max) {
12ca818f 1202 log_syntax(unit, LOG_ERR, filename, line, 0, "CPU scheduling priority is out of range, ignoring: %s", rvalue);
bb112710
HHPF		 1203 return 0;
1204 }
1205
94f04347
LP		 1206 c->cpu_sched_priority = i;
1207 c->cpu_sched_set = true;
1208
1209 return 0;
1210}
1211
e8e581bf
ZJS		 1212int config_parse_exec_cpu_affinity(const char *unit,
1213 const char *filename,
1214 unsigned line,
1215 const char *section,
71a61510 1216 unsigned section_line,
e8e581bf
ZJS		 1217 const char *lvalue,
1218 int ltype,
1219 const char *rvalue,
1220 void *data,
1221 void *userdata) {
94f04347
LP		 1222
1223 ExecContext *c = data;
9d5ca7f8
FB		 1224 _cleanup_cpu_free_ cpu_set_t *cpuset = NULL;
1225 int ncpus;
94f04347
LP		 1226
1227 assert(filename);
1228 assert(lvalue);
1229 assert(rvalue);
1230 assert(data);
1231
765d143b 1232 ncpus = parse_cpu_set_and_warn(rvalue, &cpuset, unit, filename, line, lvalue);
9d5ca7f8
FB		 1233 if (ncpus < 0)
1234 return ncpus;
487393e9 1235
501941aa 1236 if (ncpus == 0) {
9d5ca7f8 1237 /* An empty assignment resets the CPU list */
501941aa
YW		 1238 c->cpuset = cpu_set_mfree(c->cpuset);
1239 c->cpuset_ncpus = 0;
1240 return 0;
1241 }
1242
1243 if (!c->cpuset) {
ae2a15bc 1244 c->cpuset = TAKE_PTR(cpuset);
501941aa
YW		 1245 c->cpuset_ncpus = (unsigned) ncpus;
1246 return 0;
1247 }
1248
1249 if (c->cpuset_ncpus < (unsigned) ncpus) {
1250 CPU_OR_S(CPU_ALLOC_SIZE(c->cpuset_ncpus), cpuset, c->cpuset, cpuset);
1251 CPU_FREE(c->cpuset);
ae2a15bc 1252 c->cpuset = TAKE_PTR(cpuset);
501941aa
YW		 1253 c->cpuset_ncpus = (unsigned) ncpus;
1254 return 0;
9eba9da4 1255 }
501941aa
YW		 1256
1257 CPU_OR_S(CPU_ALLOC_SIZE((unsigned) ncpus), c->cpuset, c->cpuset, cpuset);
9eba9da4 1258
94f04347
LP		 1259 return 0;
1260}
1261
a103496c 1262int config_parse_capability_set(
65dce264
LP		 1263 const char *unit,
1264 const char *filename,
1265 unsigned line,
1266 const char *section,
1267 unsigned section_line,
1268 const char *lvalue,
1269 int ltype,
1270 const char *rvalue,
1271 void *data,
1272 void *userdata) {
94f04347 1273
a103496c
IP		 1274 uint64_t *capability_set = data;
1275 uint64_t sum = 0, initial = 0;
260abb78 1276 bool invert = false;
dd1f5bd0 1277 int r;
94f04347
LP		 1278
1279 assert(filename);
1280 assert(lvalue);
1281 assert(rvalue);
1282 assert(data);
1283
260abb78
LP		 1284 if (rvalue[0] == '~') {
1285 invert = true;
1286 rvalue++;
1287 }
1288
70d54d90 1289 if (streq(lvalue, "CapabilityBoundingSet"))
a103496c 1290 initial = CAP_ALL; /* initialized to all bits on */
755d4b67 1291 /* else "AmbientCapabilities" initialized to all bits off */
260abb78 1292
dd1f5bd0 1293 r = capability_set_from_string(rvalue, &sum);
dd1f5bd0 1294 if (r < 0) {
063c4b1a 1295 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse %s= specifier '%s', ignoring: %m", lvalue, rvalue);
dd1f5bd0 1296 return 0;
94f04347 1297 }
9eba9da4 1298
a103496c 1299 if (sum == 0 || *capability_set == initial)
c792ec2e
IP		 1300 /* "", "~" or uninitialized data -> replace */
1301 *capability_set = invert ? ~sum : sum;
1302 else {
a103496c 1303 /* previous data -> merge */
c792ec2e
IP		 1304 if (invert)
1305 *capability_set &= ~sum;
1306 else
1307 *capability_set |= sum;
1308 }
260abb78 1309
9eba9da4
LP		 1310 return 0;
1311}
1312
5f8640fb
LP		 1313int config_parse_exec_selinux_context(
1314 const char *unit,
1315 const char *filename,
1316 unsigned line,
1317 const char *section,
1318 unsigned section_line,
1319 const char *lvalue,
1320 int ltype,
1321 const char *rvalue,
1322 void *data,
1323 void *userdata) {
1324
1325 ExecContext *c = data;
1326 Unit *u = userdata;
1327 bool ignore;
1328 char *k;
1329 int r;
1330
1331 assert(filename);
1332 assert(lvalue);
1333 assert(rvalue);
1334 assert(data);
1335
1336 if (isempty(rvalue)) {
a1e58e8e 1337 c->selinux_context = mfree(c->selinux_context);
5f8640fb
LP		 1338 c->selinux_context_ignore = false;
1339 return 0;
1340 }
1341
1342 if (rvalue[0] == '-') {
1343 ignore = true;
1344 rvalue++;
1345 } else
1346 ignore = false;
1347
18913df9 1348 r = unit_full_printf(u, rvalue, &k);
5f8640fb 1349 if (r < 0) {
bb28e684 1350 log_syntax(unit, LOG_ERR, filename, line, r,
063c4b1a
YW		 1351 "Failed to resolve unit specifiers in '%s'%s: %m",
1352 rvalue, ignore ? ", ignoring" : "");
bb28e684 1353 return ignore ? 0 : -ENOEXEC;
5f8640fb
LP		 1354 }
1355
063c4b1a 1356 free_and_replace(c->selinux_context, k);
5f8640fb
LP		 1357 c->selinux_context_ignore = ignore;
1358
1359 return 0;
1360}
1361
eef65bf3
MS		 1362int config_parse_exec_apparmor_profile(
1363 const char *unit,
1364 const char *filename,
1365 unsigned line,
1366 const char *section,
1367 unsigned section_line,
1368 const char *lvalue,
1369 int ltype,
1370 const char *rvalue,
1371 void *data,
1372 void *userdata) {
1373
1374 ExecContext *c = data;
1375 Unit *u = userdata;
1376 bool ignore;
1377 char *k;
1378 int r;
1379
1380 assert(filename);
1381 assert(lvalue);
1382 assert(rvalue);
1383 assert(data);
1384
1385 if (isempty(rvalue)) {
a1e58e8e 1386 c->apparmor_profile = mfree(c->apparmor_profile);
eef65bf3
MS		 1387 c->apparmor_profile_ignore = false;
1388 return 0;
1389 }
1390
1391 if (rvalue[0] == '-') {
1392 ignore = true;
1393 rvalue++;
1394 } else
1395 ignore = false;
1396
18913df9 1397 r = unit_full_printf(u, rvalue, &k);
eef65bf3 1398 if (r < 0) {
bb28e684 1399 log_syntax(unit, LOG_ERR, filename, line, r,
063c4b1a
YW		 1400 "Failed to resolve unit specifiers in '%s'%s: %m",
1401 rvalue, ignore ? ", ignoring" : "");
bb28e684 1402 return ignore ? 0 : -ENOEXEC;
eef65bf3
MS		 1403 }
1404
063c4b1a 1405 free_and_replace(c->apparmor_profile, k);
eef65bf3
MS		 1406 c->apparmor_profile_ignore = ignore;
1407
1408 return 0;
1409}
1410
2ca620c4
WC		 1411int config_parse_exec_smack_process_label(
1412 const char *unit,
1413 const char *filename,
1414 unsigned line,
1415 const char *section,
1416 unsigned section_line,
1417 const char *lvalue,
1418 int ltype,
1419 const char *rvalue,
1420 void *data,
1421 void *userdata) {
1422
1423 ExecContext *c = data;
1424 Unit *u = userdata;
1425 bool ignore;
1426 char *k;
1427 int r;
1428
1429 assert(filename);
1430 assert(lvalue);
1431 assert(rvalue);
1432 assert(data);
1433
1434 if (isempty(rvalue)) {
a1e58e8e 1435 c->smack_process_label = mfree(c->smack_process_label);
2ca620c4
WC		 1436 c->smack_process_label_ignore = false;
1437 return 0;
1438 }
1439
1440 if (rvalue[0] == '-') {
1441 ignore = true;
1442 rvalue++;
1443 } else
1444 ignore = false;
1445
18913df9 1446 r = unit_full_printf(u, rvalue, &k);
2ca620c4 1447 if (r < 0) {
bb28e684 1448 log_syntax(unit, LOG_ERR, filename, line, r,
063c4b1a
YW		 1449 "Failed to resolve unit specifiers in '%s'%s: %m",
1450 rvalue, ignore ? ", ignoring" : "");
bb28e684 1451 return ignore ? 0 : -ENOEXEC;
2ca620c4
WC		 1452 }
1453
063c4b1a 1454 free_and_replace(c->smack_process_label, k);
2ca620c4
WC		 1455 c->smack_process_label_ignore = ignore;
1456
1457 return 0;
1458}
1459
e8e581bf
ZJS		 1460int config_parse_timer(const char *unit,
1461 const char *filename,
1462 unsigned line,
1463 const char *section,
71a61510 1464 unsigned section_line,
e8e581bf
ZJS		 1465 const char *lvalue,
1466 int ltype,
1467 const char *rvalue,
1468 void *data,
1469 void *userdata) {
871d7de4
LP		 1470
1471 Timer *t = data;
2507992f 1472 usec_t usec = 0;
871d7de4
LP		 1473 TimerValue *v;
1474 TimerBase b;
921b5987 1475 _cleanup_(calendar_spec_freep) CalendarSpec *c = NULL;
2507992f
DC		 1476 Unit *u = userdata;
1477 _cleanup_free_ char *k = NULL;
1478 int r;
871d7de4
LP		 1479
1480 assert(filename);
1481 assert(lvalue);
1482 assert(rvalue);
1483 assert(data);
1484
74051b9b
LP		 1485 if (isempty(rvalue)) {
1486 /* Empty assignment resets list */
1487 timer_free_values(t);
1488 return 0;
1489 }
1490
36697dc0
LP		 1491 b = timer_base_from_string(lvalue);
1492 if (b < 0) {
12ca818f 1493 log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse timer base, ignoring: %s", lvalue);
c0b34696 1494 return 0;
871d7de4
LP		 1495 }
1496
2507992f
DC		 1497 r = unit_full_printf(u, rvalue, &k);
1498 if (r < 0) {
063c4b1a 1499 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue);
2507992f
DC		 1500 return 0;
1501 }
1502
36697dc0 1503 if (b == TIMER_CALENDAR) {
2507992f
DC		 1504 if (calendar_spec_from_string(k, &c) < 0) {
1505 log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse calendar specification, ignoring: %s", k);
36697dc0
LP		 1506 return 0;
1507 }
063c4b1a 1508 } else
2507992f
DC		 1509 if (parse_sec(k, &usec) < 0) {
1510 log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse timer value, ignoring: %s", k);
36697dc0
LP		 1511 return 0;
1512 }
871d7de4 1513
36697dc0 1514 v = new0(TimerValue, 1);
921b5987 1515 if (!v)
74051b9b 1516 return log_oom();
871d7de4
LP		 1517
1518 v->base = b;
2507992f 1519 v->value = usec;
921b5987 1520 v->calendar_spec = TAKE_PTR(c);
871d7de4 1521
71fda00f 1522 LIST_PREPEND(value, t->values, v);
871d7de4
LP		 1523
1524 return 0;
1525}
1526
3ecaa09b
LP		 1527int config_parse_trigger_unit(
1528 const char *unit,
1529 const char *filename,
1530 unsigned line,
1531 const char *section,
71a61510 1532 unsigned section_line,
3ecaa09b
LP		 1533 const char *lvalue,
1534 int ltype,
1535 const char *rvalue,
1536 void *data,
1537 void *userdata) {
871d7de4 1538
74051b9b 1539 _cleanup_free_ char *p = NULL;
3ecaa09b
LP		 1540 Unit *u = data;
1541 UnitType type;
1542 int r;
398ef8ba
LP		 1543
1544 assert(filename);
1545 assert(lvalue);
1546 assert(rvalue);
1547 assert(data);
1548
eef85c4a 1549 if (!hashmap_isempty(u->dependencies[UNIT_TRIGGERS])) {
12ca818f 1550 log_syntax(unit, LOG_ERR, filename, line, 0, "Multiple units to trigger specified, ignoring: %s", rvalue);
3ecaa09b
LP		 1551 return 0;
1552 }
871d7de4 1553
19f6d710 1554 r = unit_name_printf(u, rvalue, &p);
12ca818f 1555 if (r < 0) {
063c4b1a 1556 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", rvalue);
12ca818f
LP		 1557 return 0;
1558 }
74051b9b 1559
12ca818f 1560 type = unit_name_to_type(p);
3ecaa09b 1561 if (type < 0) {
12ca818f 1562 log_syntax(unit, LOG_ERR, filename, line, 0, "Unit type not valid, ignoring: %s", rvalue);
c0b34696 1563 return 0;
871d7de4 1564 }
49219a1c
JR		 1565 if (unit_has_name(u, p)) {
1566 log_syntax(unit, LOG_ERR, filename, line, 0, "Units cannot trigger themselves, ignoring: %s", rvalue);
3ecaa09b
LP		 1567 return 0;
1568 }
1569
5a724170 1570 r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, UNIT_TRIGGERS, p, true, UNIT_DEPENDENCY_FILE);
57020a3a 1571 if (r < 0) {
12ca818f 1572 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to add trigger on %s, ignoring: %m", p);
c0b34696 1573 return 0;
871d7de4
LP		 1574 }
1575
1576 return 0;
1577}
1578
e8e581bf
ZJS		 1579int config_parse_path_spec(const char *unit,
1580 const char *filename,
1581 unsigned line,
1582 const char *section,
71a61510 1583 unsigned section_line,
e8e581bf
ZJS		 1584 const char *lvalue,
1585 int ltype,
1586 const char *rvalue,
1587 void *data,
1588 void *userdata) {
01f78473
LP		 1589
1590 Path *p = data;
1591 PathSpec *s;
1592 PathType b;
7fd1b19b 1593 _cleanup_free_ char *k = NULL;
19f6d710 1594 int r;
01f78473
LP		 1595
1596 assert(filename);
1597 assert(lvalue);
1598 assert(rvalue);
1599 assert(data);
1600
74051b9b
LP		 1601 if (isempty(rvalue)) {
1602 /* Empty assignment clears list */
1603 path_free_specs(p);
1604 return 0;
1605 }
1606
93e4c84b
LP		 1607 b = path_type_from_string(lvalue);
1608 if (b < 0) {
12ca818f 1609 log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse path type, ignoring: %s", lvalue);
c0b34696 1610 return 0;
01f78473
LP		 1611 }
1612
19f6d710
LP		 1613 r = unit_full_printf(UNIT(p), rvalue, &k);
1614 if (r < 0) {
063c4b1a 1615 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", rvalue);
12ca818f 1616 return 0;
487060c2 1617 }
93e4c84b 1618
2f4d31c1
YW		 1619 r = path_simplify_and_warn(k, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
1620 if (r < 0)
c0b34696 1621 return 0;
01f78473 1622
93e4c84b 1623 s = new0(PathSpec, 1);
543295ad 1624 if (!s)
93e4c84b 1625 return log_oom();
01f78473 1626
718db961 1627 s->unit = UNIT(p);
063c4b1a 1628 s->path = TAKE_PTR(k);
01f78473
LP		 1629 s->type = b;
1630 s->inotify_fd = -1;
1631
71fda00f 1632 LIST_PREPEND(spec, p->specs, s);
01f78473
LP		 1633
1634 return 0;
1635}
1636
b02cb41c
LP		 1637int config_parse_socket_service(
1638 const char *unit,
1639 const char *filename,
1640 unsigned line,
1641 const char *section,
1642 unsigned section_line,
1643 const char *lvalue,
1644 int ltype,
1645 const char *rvalue,
1646 void *data,
1647 void *userdata) {
d9ff321a 1648
4afd3348 1649 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
8dd4c05b 1650 _cleanup_free_ char *p = NULL;
d9ff321a 1651 Socket *s = data;
4ff77f66 1652 Unit *x;
8dd4c05b 1653 int r;
d9ff321a
LP		 1654
1655 assert(filename);
1656 assert(lvalue);
1657 assert(rvalue);
1658 assert(data);
1659
19f6d710 1660 r = unit_name_printf(UNIT(s), rvalue, &p);
613b411c 1661 if (r < 0) {
063c4b1a 1662 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in %s: %m", rvalue);
bb28e684 1663 return -ENOEXEC;
613b411c 1664 }
74051b9b 1665
613b411c 1666 if (!endswith(p, ".service")) {
bb28e684
ZJS		 1667 log_syntax(unit, LOG_ERR, filename, line, 0, "Unit must be of type service: %s", rvalue);
1668 return -ENOEXEC;
d9ff321a
LP		 1669 }
1670
613b411c 1671 r = manager_load_unit(UNIT(s)->manager, p, NULL, &error, &x);
4ff77f66 1672 if (r < 0) {
bb28e684
ZJS		 1673 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to load unit %s: %s", rvalue, bus_error_message(&error, r));
1674 return -ENOEXEC;
d9ff321a
LP		 1675 }
1676
7f7d01ed 1677 unit_ref_set(&s->service, UNIT(s), x);
4ff77f66 1678
d9ff321a
LP		 1679 return 0;
1680}
1681
8dd4c05b
LP		 1682int config_parse_fdname(
1683 const char *unit,
1684 const char *filename,
1685 unsigned line,
1686 const char *section,
1687 unsigned section_line,
1688 const char *lvalue,
1689 int ltype,
1690 const char *rvalue,
1691 void *data,
1692 void *userdata) {
1693
1694 _cleanup_free_ char *p = NULL;
1695 Socket *s = data;
1696 int r;
1697
1698 assert(filename);
1699 assert(lvalue);
1700 assert(rvalue);
1701 assert(data);
1702
1703 if (isempty(rvalue)) {
1704 s->fdname = mfree(s->fdname);
1705 return 0;
1706 }
1707
18913df9 1708 r = unit_full_printf(UNIT(s), rvalue, &p);
8dd4c05b 1709 if (r < 0) {
063c4b1a 1710 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue);
8dd4c05b
LP		 1711 return 0;
1712 }
1713
1714 if (!fdname_is_valid(p)) {
1715 log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid file descriptor name, ignoring: %s", p);
1716 return 0;
1717 }
1718
3b319885 1719 return free_and_replace(s->fdname, p);
8dd4c05b
LP		 1720}
1721
b02cb41c
LP		 1722int config_parse_service_sockets(
1723 const char *unit,
1724 const char *filename,
1725 unsigned line,
1726 const char *section,
1727 unsigned section_line,
1728 const char *lvalue,
1729 int ltype,
1730 const char *rvalue,
1731 void *data,
1732 void *userdata) {
f976f3f6
LP		 1733
1734 Service *s = data;
7b2313f5 1735 const char *p;
b02cb41c 1736 int r;
f976f3f6
LP		 1737
1738 assert(filename);
1739 assert(lvalue);
1740 assert(rvalue);
1741 assert(data);
1742
7b2313f5 1743 p = rvalue;
9ed794a3 1744 for (;;) {
6a0f3175 1745 _cleanup_free_ char *word = NULL, *k = NULL;
f976f3f6 1746
7b2313f5
SS		 1747 r = extract_first_word(&p, &word, NULL, 0);
1748 if (r == 0)
1749 break;
1750 if (r == -ENOMEM)
74051b9b 1751 return log_oom();
7b2313f5
SS		 1752 if (r < 0) {
1753 log_syntax(unit, LOG_ERR, filename, line, r, "Trailing garbage in sockets, ignoring: %s", rvalue);
1754 break;
1755 }
f976f3f6 1756
7b2313f5 1757 r = unit_name_printf(UNIT(s), word, &k);
b02cb41c 1758 if (r < 0) {
063c4b1a 1759 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", word);
b02cb41c
LP		 1760 continue;
1761 }
57020a3a 1762
b02cb41c 1763 if (!endswith(k, ".socket")) {
12ca818f 1764 log_syntax(unit, LOG_ERR, filename, line, 0, "Unit must be of type socket, ignoring: %s", k);
f976f3f6
LP		 1765 continue;
1766 }
1767
5a724170 1768 r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_WANTS, UNIT_AFTER, k, true, UNIT_DEPENDENCY_FILE);
57020a3a 1769 if (r < 0)
b02cb41c 1770 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to add dependency on %s, ignoring: %m", k);
f976f3f6 1771
35d8c19a 1772 r = unit_add_dependency_by_name(UNIT(s), UNIT_TRIGGERED_BY, k, true, UNIT_DEPENDENCY_FILE);
57020a3a 1773 if (r < 0)
b02cb41c 1774 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to add dependency on %s, ignoring: %m", k);
f976f3f6
LP		 1775 }
1776
1777 return 0;
1778}
1779
b02cb41c
LP		 1780int config_parse_bus_name(
1781 const char *unit,
1782 const char *filename,
1783 unsigned line,
1784 const char *section,
1785 unsigned section_line,
1786 const char *lvalue,
1787 int ltype,
1788 const char *rvalue,
1789 void *data,
1790 void *userdata) {
1791
1792 _cleanup_free_ char *k = NULL;
1793 Unit *u = userdata;
1794 int r;
1795
1796 assert(filename);
1797 assert(lvalue);
1798 assert(rvalue);
1799 assert(u);
1800
1801 r = unit_full_printf(u, rvalue, &k);
1802 if (r < 0) {
063c4b1a 1803 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", rvalue);
b02cb41c
LP		 1804 return 0;
1805 }
1806
1807 if (!service_name_is_valid(k)) {
063c4b1a 1808 log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid bus name, ignoring: %s", k);
b02cb41c
LP		 1809 return 0;
1810 }
1811
1812 return config_parse_string(unit, filename, line, section, section_line, lvalue, ltype, k, data, userdata);
1813}
1814
aad41f08
LP		 1815int config_parse_service_timeout(
1816 const char *unit,
1817 const char *filename,
1818 unsigned line,
1819 const char *section,
1820 unsigned section_line,
1821 const char *lvalue,
1822 int ltype,
1823 const char *rvalue,
1824 void *data,
1825 void *userdata) {
98709151
LN		 1826
1827 Service *s = userdata;
aad41f08 1828 usec_t usec;
98709151
LN		 1829 int r;
1830
1831 assert(filename);
1832 assert(lvalue);
1833 assert(rvalue);
1834 assert(s);
1835
6c58305a 1836 /* This is called for two cases: TimeoutSec= and TimeoutStartSec=. */
98709151 1837
fb27be3f
YW		 1838 /* Traditionally, these options accepted 0 to disable the timeouts. However, a timeout of 0 suggests it happens
1839 * immediately, hence fix this to become USEC_INFINITY instead. This is in-line with how we internally handle
1840 * all other timeouts. */
1841 r = parse_sec_fix_0(rvalue, &usec);
aad41f08
LP		 1842 if (r < 0) {
1843 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse %s= parameter, ignoring: %s", lvalue, rvalue);
1844 return 0;
1845 }
d568a335 1846
6c58305a
YW		 1847 s->start_timeout_defined = true;
1848 s->timeout_start_usec = usec;
36c16a7c 1849
6c58305a 1850 if (streq(lvalue, "TimeoutSec"))
aad41f08 1851 s->timeout_stop_usec = usec;
36c16a7c 1852
d568a335 1853 return 0;
98709151
LN		 1854}
1855
89beff89
LP		 1856int config_parse_sec_fix_0(
1857 const char *unit,
1858 const char *filename,
1859 unsigned line,
1860 const char *section,
1861 unsigned section_line,
1862 const char *lvalue,
1863 int ltype,
1864 const char *rvalue,
1865 void *data,
1866 void *userdata) {
1867
1868 usec_t *usec = data;
1869 int r;
1870
1871 assert(filename);
1872 assert(lvalue);
1873 assert(rvalue);
1874 assert(usec);
1875
1876 /* This is pretty much like config_parse_sec(), except that this treats a time of 0 as infinity, for
1877 * compatibility with older versions of systemd where 0 instead of infinity was used as indicator to turn off a
1878 * timeout. */
1879
0004f698 1880 r = parse_sec_fix_0(rvalue, usec);
89beff89
LP		 1881 if (r < 0) {
1882 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse %s= parameter, ignoring: %s", lvalue, rvalue);
1883 return 0;
1884 }
1885
89beff89
LP		 1886 return 0;
1887}
1888
66dccd8d
LP		 1889int config_parse_user_group(
1890 const char *unit,
1891 const char *filename,
1892 unsigned line,
1893 const char *section,
1894 unsigned section_line,
1895 const char *lvalue,
1896 int ltype,
1897 const char *rvalue,
1898 void *data,
1899 void *userdata) {
1900
063c4b1a
YW		 1901 _cleanup_free_ char *k = NULL;
1902 char **user = data;
66dccd8d
LP		 1903 Unit *u = userdata;
1904 int r;
1905
1906 assert(filename);
1907 assert(lvalue);
1908 assert(rvalue);
1909 assert(u);
1910
063c4b1a
YW		 1911 if (isempty(rvalue)) {
1912 *user = mfree(*user);
1913 return 0;
1914 }
66dccd8d 1915
063c4b1a
YW		 1916 r = unit_full_printf(u, rvalue, &k);
1917 if (r < 0) {
1918 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in %s: %m", rvalue);
1919 return -ENOEXEC;
66dccd8d
LP		 1920 }
1921
063c4b1a
YW		 1922 if (!valid_user_group_name_or_id(k)) {
1923 log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid user/group name or numeric ID: %s", k);
1924 return -ENOEXEC;
1925 }
66dccd8d 1926
063c4b1a 1927 return free_and_replace(*user, k);
66dccd8d
LP		 1928}
1929
1930int config_parse_user_group_strv(
1931 const char *unit,
1932 const char *filename,
1933 unsigned line,
1934 const char *section,
1935 unsigned section_line,
1936 const char *lvalue,
1937 int ltype,
1938 const char *rvalue,
1939 void *data,
1940 void *userdata) {
1941
1942 char ***users = data;
1943 Unit *u = userdata;
063c4b1a 1944 const char *p = rvalue;
66dccd8d
LP		 1945 int r;
1946
1947 assert(filename);
1948 assert(lvalue);
1949 assert(rvalue);
1950 assert(u);
1951
1952 if (isempty(rvalue)) {
9f2d41a6 1953 *users = strv_free(*users);
66dccd8d
LP		 1954 return 0;
1955 }
1956
66dccd8d
LP		 1957 for (;;) {
1958 _cleanup_free_ char *word = NULL, *k = NULL;
1959
9a82ab95 1960 r = extract_first_word(&p, &word, NULL, 0);
66dccd8d
LP		 1961 if (r == 0)
1962 break;
1963 if (r == -ENOMEM)
1964 return log_oom();
1965 if (r < 0) {
bb28e684
ZJS		 1966 log_syntax(unit, LOG_ERR, filename, line, r, "Invalid syntax: %s", rvalue);
1967 return -ENOEXEC;
66dccd8d
LP		 1968 }
1969
1970 r = unit_full_printf(u, word, &k);
1971 if (r < 0) {
bb28e684
ZJS		 1972 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in %s: %m", word);
1973 return -ENOEXEC;
66dccd8d
LP		 1974 }
1975
1976 if (!valid_user_group_name_or_id(k)) {
bb28e684
ZJS		 1977 log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid user/group name or numeric ID: %s", k);
1978 return -ENOEXEC;
66dccd8d
LP		 1979 }
1980
1981 r = strv_push(users, k);
1982 if (r < 0)
1983 return log_oom();
1984
1985 k = NULL;
1986 }
1987
1988 return 0;
1989}
1990
5f5d8eab
LP		 1991int config_parse_working_directory(
1992 const char *unit,
1993 const char *filename,
1994 unsigned line,
1995 const char *section,
1996 unsigned section_line,
1997 const char *lvalue,
1998 int ltype,
1999 const char *rvalue,
2000 void *data,
2001 void *userdata) {
2002
2003 ExecContext *c = data;
2004 Unit *u = userdata;
2005 bool missing_ok;
2006 int r;
2007
2008 assert(filename);
2009 assert(lvalue);
2010 assert(rvalue);
2011 assert(c);
2012 assert(u);
2013
862fcffd
YW		 2014 if (isempty(rvalue)) {
2015 c->working_directory_home = false;
2016 c->working_directory = mfree(c->working_directory);
2017 return 0;
2018 }
2019
5f5d8eab
LP		 2020 if (rvalue[0] == '-') {
2021 missing_ok = true;
2022 rvalue++;
2023 } else
2024 missing_ok = false;
2025
2026 if (streq(rvalue, "~")) {
2027 c->working_directory_home = true;
2028 c->working_directory = mfree(c->working_directory);
2029 } else {
2030 _cleanup_free_ char *k = NULL;
2031
2032 r = unit_full_printf(u, rvalue, &k);
2033 if (r < 0) {
bb28e684
ZJS		 2034 log_syntax(unit, LOG_ERR, filename, line, r,
2035 "Failed to resolve unit specifiers in working directory path '%s'%s: %m",
2036 rvalue, missing_ok ? ", ignoring" : "");
2037 return missing_ok ? 0 : -ENOEXEC;
5f5d8eab
LP		 2038 }
2039
2f4d31c1
YW		 2040 r = path_simplify_and_warn(k, PATH_CHECK_ABSOLUTE | (missing_ok ? 0 : PATH_CHECK_FATAL), unit, filename, line, lvalue);
2041 if (r < 0)
bb28e684 2042 return missing_ok ? 0 : -ENOEXEC;
5f5d8eab 2043
5f5d8eab 2044 c->working_directory_home = false;
bb28e684 2045 free_and_replace(c->working_directory, k);
5f5d8eab
LP		 2046 }
2047
2048 c->working_directory_missing_ok = missing_ok;
2049 return 0;
2050}
2051
e8e581bf
ZJS		 2052int config_parse_unit_env_file(const char *unit,
2053 const char *filename,
2054 unsigned line,
2055 const char *section,
71a61510 2056 unsigned section_line,
e8e581bf
ZJS		 2057 const char *lvalue,
2058 int ltype,
2059 const char *rvalue,
2060 void *data,
2061 void *userdata) {
ddb26e18 2062
853b8397 2063 char ***env = data;
8fef7659 2064 Unit *u = userdata;
19f6d710 2065 _cleanup_free_ char *n = NULL;
853b8397 2066 int r;
ddb26e18
LP		 2067
2068 assert(filename);
2069 assert(lvalue);
2070 assert(rvalue);
2071 assert(data);
2072
74051b9b
LP		 2073 if (isempty(rvalue)) {
2074 /* Empty assignment frees the list */
6796073e 2075 *env = strv_free(*env);
74051b9b
LP		 2076 return 0;
2077 }
2078
19f6d710 2079 r = unit_full_printf(u, rvalue, &n);
12ca818f 2080 if (r < 0) {
063c4b1a 2081 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue);
12ca818f
LP		 2082 return 0;
2083 }
8fef7659 2084
2f4d31c1
YW		 2085 r = path_simplify_and_warn(n[0] == '-' ? n + 1 : n, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
2086 if (r < 0)
afe4bfe2 2087 return 0;
afe4bfe2 2088
2f4d31c1 2089 r = strv_push(env, n);
853b8397
LP		 2090 if (r < 0)
2091 return log_oom();
2092
2f4d31c1
YW		 2093 n = NULL;
2094
853b8397
LP		 2095 return 0;
2096}
2097
f7f3f5c3
LP		 2098int config_parse_environ(
2099 const char *unit,
2100 const char *filename,
2101 unsigned line,
2102 const char *section,
2103 unsigned section_line,
2104 const char *lvalue,
2105 int ltype,
2106 const char *rvalue,
2107 void *data,
2108 void *userdata) {
853b8397
LP		 2109
2110 Unit *u = userdata;
035fe294
ZJS		 2111 char ***env = data;
2112 const char *p;
19f6d710 2113 int r;
853b8397
LP		 2114
2115 assert(filename);
2116 assert(lvalue);
2117 assert(rvalue);
97d0e5f8 2118 assert(data);
853b8397
LP		 2119
2120 if (isempty(rvalue)) {
2121 /* Empty assignment resets the list */
6796073e 2122 *env = strv_free(*env);
853b8397
LP		 2123 return 0;
2124 }
2125
035fe294
ZJS		 2126 for (p = rvalue;; ) {
2127 _cleanup_free_ char *word = NULL, *k = NULL;
035fe294
ZJS		 2128
2129 r = extract_first_word(&p, &word, NULL, EXTRACT_CUNESCAPE|EXTRACT_QUOTES);
2130 if (r == 0)
2131 return 0;
2132 if (r == -ENOMEM)
2133 return log_oom();
12ca818f 2134 if (r < 0) {
035fe294
ZJS		 2135 log_syntax(unit, LOG_WARNING, filename, line, r,
2136 "Invalid syntax, ignoring: %s", rvalue);
12ca818f
LP		 2137 return 0;
2138 }
97d0e5f8 2139
035fe294
ZJS		 2140 if (u) {
2141 r = unit_full_printf(u, word, &k);
2142 if (r < 0) {
2143 log_syntax(unit, LOG_ERR, filename, line, r,
063c4b1a 2144 "Failed to resolve unit specifiers in %s, ignoring: %m", word);
035fe294
ZJS		 2145 continue;
2146 }
ae2a15bc
LP		 2147 } else
2148 k = TAKE_PTR(word);
853b8397 2149
035fe294
ZJS		 2150 if (!env_assignment_is_valid(k)) {
2151 log_syntax(unit, LOG_ERR, filename, line, 0,
2152 "Invalid environment assignment, ignoring: %s", k);
853b8397
LP		 2153 continue;
2154 }
2155
54ac3494
ZJS		 2156 r = strv_env_replace(env, k);
2157 if (r < 0)
853b8397 2158 return log_oom();
f7f3f5c3 2159
54ac3494 2160 k = NULL;
853b8397 2161 }
ddb26e18
LP		 2162}
2163
00819cc1
LP		 2164int config_parse_pass_environ(
2165 const char *unit,
2166 const char *filename,
2167 unsigned line,
2168 const char *section,
2169 unsigned section_line,
2170 const char *lvalue,
2171 int ltype,
2172 const char *rvalue,
2173 void *data,
2174 void *userdata) {
b4c14404 2175
b4c14404
FB		 2176 _cleanup_strv_free_ char **n = NULL;
2177 size_t nlen = 0, nbufsize = 0;
41de9cc2 2178 char*** passenv = data;
063c4b1a 2179 const char *p = rvalue;
41de9cc2 2180 Unit *u = userdata;
b4c14404
FB		 2181 int r;
2182
2183 assert(filename);
2184 assert(lvalue);
2185 assert(rvalue);
2186 assert(data);
2187
2188 if (isempty(rvalue)) {
2189 /* Empty assignment resets the list */
2190 *passenv = strv_free(*passenv);
2191 return 0;
2192 }
2193
2194 for (;;) {
41de9cc2 2195 _cleanup_free_ char *word = NULL, *k = NULL;
b4c14404 2196
063c4b1a 2197 r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES);
b4c14404
FB		 2198 if (r == 0)
2199 break;
2200 if (r == -ENOMEM)
2201 return log_oom();
2202 if (r < 0) {
2203 log_syntax(unit, LOG_ERR, filename, line, r,
063c4b1a 2204 "Trailing garbage in %s, ignoring: %s", lvalue, rvalue);
b4c14404
FB		 2205 break;
2206 }
2207
41de9cc2
LP		 2208 if (u) {
2209 r = unit_full_printf(u, word, &k);
2210 if (r < 0) {
2211 log_syntax(unit, LOG_ERR, filename, line, r,
063c4b1a 2212 "Failed to resolve specifiers in %s, ignoring: %m", word);
41de9cc2
LP		 2213 continue;
2214 }
ae2a15bc
LP		 2215 } else
2216 k = TAKE_PTR(word);
41de9cc2
LP		 2217
2218 if (!env_name_is_valid(k)) {
2219 log_syntax(unit, LOG_ERR, filename, line, 0,
2220 "Invalid environment name for %s, ignoring: %s", lvalue, k);
b4c14404
FB		 2221 continue;
2222 }
2223
2224 if (!GREEDY_REALLOC(n, nbufsize, nlen + 2))
2225 return log_oom();
41de9cc2 2226
1cc6c93a 2227 n[nlen++] = TAKE_PTR(k);
b4c14404 2228 n[nlen] = NULL;
b4c14404
FB		 2229 }
2230
2231 if (n) {
2232 r = strv_extend_strv(passenv, n, true);
2233 if (r < 0)
2234 return r;
2235 }
2236
2237 return 0;
2238}
2239
00819cc1
LP		 2240int config_parse_unset_environ(
2241 const char *unit,
2242 const char *filename,
2243 unsigned line,
2244 const char *section,
2245 unsigned section_line,
2246 const char *lvalue,
2247 int ltype,
2248 const char *rvalue,
2249 void *data,
2250 void *userdata) {
2251
2252 _cleanup_strv_free_ char **n = NULL;
00819cc1
LP		 2253 size_t nlen = 0, nbufsize = 0;
2254 char*** unsetenv = data;
063c4b1a 2255 const char *p = rvalue;
00819cc1
LP		 2256 Unit *u = userdata;
2257 int r;
2258
2259 assert(filename);
2260 assert(lvalue);
2261 assert(rvalue);
2262 assert(data);
2263
2264 if (isempty(rvalue)) {
2265 /* Empty assignment resets the list */
2266 *unsetenv = strv_free(*unsetenv);
2267 return 0;
2268 }
2269
2270 for (;;) {
2271 _cleanup_free_ char *word = NULL, *k = NULL;
2272
063c4b1a 2273 r = extract_first_word(&p, &word, NULL, EXTRACT_CUNESCAPE|EXTRACT_QUOTES);
00819cc1
LP		 2274 if (r == 0)
2275 break;
2276 if (r == -ENOMEM)
2277 return log_oom();
2278 if (r < 0) {
2279 log_syntax(unit, LOG_ERR, filename, line, r,
063c4b1a 2280 "Trailing garbage in %s, ignoring: %s", lvalue, rvalue);
00819cc1
LP		 2281 break;
2282 }
2283
2284 if (u) {
2285 r = unit_full_printf(u, word, &k);
2286 if (r < 0) {
2287 log_syntax(unit, LOG_ERR, filename, line, r,
063c4b1a 2288 "Failed to resolve unit specifiers in %s, ignoring: %m", word);
00819cc1
LP		 2289 continue;
2290 }
ae2a15bc
LP		 2291 } else
2292 k = TAKE_PTR(word);
00819cc1
LP		 2293
2294 if (!env_assignment_is_valid(k) && !env_name_is_valid(k)) {
2295 log_syntax(unit, LOG_ERR, filename, line, 0,
2296 "Invalid environment name or assignment %s, ignoring: %s", lvalue, k);
2297 continue;
2298 }
2299
2300 if (!GREEDY_REALLOC(n, nbufsize, nlen + 2))
2301 return log_oom();
2302
1cc6c93a 2303 n[nlen++] = TAKE_PTR(k);
00819cc1 2304 n[nlen] = NULL;
00819cc1
LP		 2305 }
2306
2307 if (n) {
2308 r = strv_extend_strv(unsetenv, n, true);
2309 if (r < 0)
2310 return r;
2311 }
2312
2313 return 0;
2314}
2315
d3070fbd
LP		 2316int config_parse_log_extra_fields(
2317 const char *unit,
2318 const char *filename,
2319 unsigned line,
2320 const char *section,
2321 unsigned section_line,
2322 const char *lvalue,
2323 int ltype,
2324 const char *rvalue,
2325 void *data,
2326 void *userdata) {
2327
2328 ExecContext *c = data;
2329 Unit *u = userdata;
063c4b1a 2330 const char *p = rvalue;
d3070fbd
LP		 2331 int r;
2332
2333 assert(filename);
2334 assert(lvalue);
2335 assert(rvalue);
2336 assert(c);
2337
2338 if (isempty(rvalue)) {
2339 exec_context_free_log_extra_fields(c);
2340 return 0;
2341 }
2342
063c4b1a 2343 for (;;) {
d3070fbd
LP		 2344 _cleanup_free_ char *word = NULL, *k = NULL;
2345 struct iovec *t;
2346 const char *eq;
2347
2348 r = extract_first_word(&p, &word, NULL, EXTRACT_CUNESCAPE|EXTRACT_QUOTES);
2349 if (r == 0)
063c4b1a 2350 return 0;
d3070fbd
LP		 2351 if (r == -ENOMEM)
2352 return log_oom();
2353 if (r < 0) {
2354 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid syntax, ignoring: %s", rvalue);
2355 return 0;
2356 }
2357
2358 r = unit_full_printf(u, word, &k);
2359 if (r < 0) {
063c4b1a 2360 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", word);
d3070fbd
LP		 2361 continue;
2362 }
2363
2364 eq = strchr(k, '=');
2365 if (!eq) {
063c4b1a 2366 log_syntax(unit, LOG_ERR, filename, line, 0, "Log field lacks '=' character, ignoring: %s", k);
d3070fbd
LP		 2367 continue;
2368 }
2369
2370 if (!journal_field_valid(k, eq-k, false)) {
063c4b1a 2371 log_syntax(unit, LOG_ERR, filename, line, 0, "Log field name is invalid, ignoring: %s", k);
d3070fbd
LP		 2372 continue;
2373 }
2374
aa484f35 2375 t = reallocarray(c->log_extra_fields, c->n_log_extra_fields+1, sizeof(struct iovec));
d3070fbd
LP		 2376 if (!t)
2377 return log_oom();
2378
2379 c->log_extra_fields = t;
2380 c->log_extra_fields[c->n_log_extra_fields++] = IOVEC_MAKE_STRING(k);
2381
2382 k = NULL;
2383 }
d3070fbd
LP		 2384}
2385
59fccdc5
LP		 2386int config_parse_unit_condition_path(
2387 const char *unit,
2388 const char *filename,
2389 unsigned line,
2390 const char *section,
2391 unsigned section_line,
2392 const char *lvalue,
2393 int ltype,
2394 const char *rvalue,
2395 void *data,
2396 void *userdata) {
52661efd 2397
2fbe635a 2398 _cleanup_free_ char *p = NULL;
59fccdc5
LP		 2399 Condition **list = data, *c;
2400 ConditionType t = ltype;
2401 bool trigger, negate;
2402 Unit *u = userdata;
19f6d710 2403 int r;
52661efd
LP		 2404
2405 assert(filename);
2406 assert(lvalue);
2407 assert(rvalue);
2408 assert(data);
2409
74051b9b
LP		 2410 if (isempty(rvalue)) {
2411 /* Empty assignment resets the list */
447021aa 2412 *list = condition_free_list(*list);
74051b9b
LP		 2413 return 0;
2414 }
2415
ab7f148f
LP		 2416 trigger = rvalue[0] == '|';
2417 if (trigger)
267632f0
LP		 2418 rvalue++;
2419
ab7f148f
LP		 2420 negate = rvalue[0] == '!';
2421 if (negate)
52661efd
LP		 2422 rvalue++;
2423
19f6d710 2424 r = unit_full_printf(u, rvalue, &p);
59fccdc5 2425 if (r < 0) {
063c4b1a 2426 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", rvalue);
59fccdc5 2427 return 0;
19f6d710 2428 }
095b2d7a 2429
2f4d31c1
YW		 2430 r = path_simplify_and_warn(p, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
2431 if (r < 0)
52661efd 2432 return 0;
52661efd 2433
59fccdc5 2434 c = condition_new(t, p, trigger, negate);
ab7f148f 2435 if (!c)
74051b9b 2436 return log_oom();
52661efd 2437
59fccdc5 2438 LIST_PREPEND(conditions, *list, c);
52661efd
LP		 2439 return 0;
2440}
2441
59fccdc5
LP		 2442int config_parse_unit_condition_string(
2443 const char *unit,
2444 const char *filename,
2445 unsigned line,
2446 const char *section,
2447 unsigned section_line,
2448 const char *lvalue,
2449 int ltype,
2450 const char *rvalue,
2451 void *data,
2452 void *userdata) {
039655a4 2453
2fbe635a 2454 _cleanup_free_ char *s = NULL;
59fccdc5
LP		 2455 Condition **list = data, *c;
2456 ConditionType t = ltype;
2457 bool trigger, negate;
2458 Unit *u = userdata;
19f6d710 2459 int r;
039655a4
LP		 2460
2461 assert(filename);
2462 assert(lvalue);
2463 assert(rvalue);
2464 assert(data);
2465
74051b9b
LP		 2466 if (isempty(rvalue)) {
2467 /* Empty assignment resets the list */
447021aa 2468 *list = condition_free_list(*list);
74051b9b
LP		 2469 return 0;
2470 }
2471
c0d6e764
LP		 2472 trigger = rvalue[0] == '|';
2473 if (trigger)
267632f0
LP		 2474 rvalue++;
2475
c0d6e764
LP		 2476 negate = rvalue[0] == '!';
2477 if (negate)
039655a4
LP		 2478 rvalue++;
2479
19f6d710 2480 r = unit_full_printf(u, rvalue, &s);
59fccdc5 2481 if (r < 0) {
063c4b1a 2482 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue);
59fccdc5 2483 return 0;
19f6d710 2484 }
095b2d7a 2485
59fccdc5 2486 c = condition_new(t, s, trigger, negate);
c0d6e764
LP		 2487 if (!c)
2488 return log_oom();
039655a4 2489
59fccdc5 2490 LIST_PREPEND(conditions, *list, c);
039655a4
LP		 2491 return 0;
2492}
2493
59fccdc5
LP		 2494int config_parse_unit_condition_null(
2495 const char *unit,
2496 const char *filename,
2497 unsigned line,
2498 const char *section,
2499 unsigned section_line,
2500 const char *lvalue,
2501 int ltype,
2502 const char *rvalue,
2503 void *data,
2504 void *userdata) {
d257ddef 2505
59fccdc5 2506 Condition **list = data, *c;
267632f0 2507 bool trigger, negate;
d257ddef
LP		 2508 int b;
2509
2510 assert(filename);
2511 assert(lvalue);
2512 assert(rvalue);
2513 assert(data);
2514
74051b9b
LP		 2515 if (isempty(rvalue)) {
2516 /* Empty assignment resets the list */
447021aa 2517 *list = condition_free_list(*list);
74051b9b
LP		 2518 return 0;
2519 }
2520
2521 trigger = rvalue[0] == '|';
2522 if (trigger)
267632f0
LP		 2523 rvalue++;
2524
74051b9b
LP		 2525 negate = rvalue[0] == '!';
2526 if (negate)
d257ddef
LP		 2527 rvalue++;
2528
74051b9b
LP		 2529 b = parse_boolean(rvalue);
2530 if (b < 0) {
12ca818f 2531 log_syntax(unit, LOG_ERR, filename, line, b, "Failed to parse boolean value in condition, ignoring: %s", rvalue);
d257ddef
LP		 2532 return 0;
2533 }
2534
2535 if (!b)
2536 negate = !negate;
2537
74051b9b
LP		 2538 c = condition_new(CONDITION_NULL, NULL, trigger, negate);
2539 if (!c)
2540 return log_oom();
d257ddef 2541
59fccdc5 2542 LIST_PREPEND(conditions, *list, c);
d257ddef
LP		 2543 return 0;
2544}
2545
a57f7e2c
LP		 2546int config_parse_unit_requires_mounts_for(
2547 const char *unit,
2548 const char *filename,
2549 unsigned line,
2550 const char *section,
71a61510 2551 unsigned section_line,
a57f7e2c
LP		 2552 const char *lvalue,
2553 int ltype,
2554 const char *rvalue,
2555 void *data,
2556 void *userdata) {
7c8fa05c 2557
063c4b1a 2558 const char *p = rvalue;
7c8fa05c 2559 Unit *u = userdata;
035fe294 2560 int r;
7c8fa05c
LP		 2561
2562 assert(filename);
2563 assert(lvalue);
2564 assert(rvalue);
2565 assert(data);
2566
063c4b1a 2567 for (;;) {
744bb5b1 2568 _cleanup_free_ char *word = NULL, *resolved = NULL;
a57f7e2c 2569
035fe294
ZJS		 2570 r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES);
2571 if (r == 0)
2572 return 0;
2573 if (r == -ENOMEM)
a57f7e2c 2574 return log_oom();
035fe294
ZJS		 2575 if (r < 0) {
2576 log_syntax(unit, LOG_WARNING, filename, line, r,
2577 "Invalid syntax, ignoring: %s", rvalue);
2578 return 0;
2579 }
7c8fa05c 2580
744bb5b1
LP		 2581 r = unit_full_printf(u, word, &resolved);
2582 if (r < 0) {
063c4b1a 2583 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", word);
744bb5b1
LP		 2584 continue;
2585 }
2586
2f4d31c1
YW		 2587 r = path_simplify_and_warn(resolved, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
2588 if (r < 0)
2589 continue;
2590
eef85c4a 2591 r = unit_require_mounts_for(u, resolved, UNIT_DEPENDENCY_FILE);
a57f7e2c 2592 if (r < 0) {
063c4b1a 2593 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to add required mount '%s', ignoring: %m", resolved);
a57f7e2c
LP		 2594 continue;
2595 }
2596 }
7c8fa05c 2597}
9e372868 2598
e8e581bf
ZJS		 2599int config_parse_documentation(const char *unit,
2600 const char *filename,
2601 unsigned line,
2602 const char *section,
71a61510 2603 unsigned section_line,
e8e581bf
ZJS		 2604 const char *lvalue,
2605 int ltype,
2606 const char *rvalue,
2607 void *data,
2608 void *userdata) {
49dbfa7b
LP		 2609
2610 Unit *u = userdata;
2611 int r;
2612 char **a, **b;
2613
2614 assert(filename);
2615 assert(lvalue);
2616 assert(rvalue);
2617 assert(u);
2618
74051b9b
LP		 2619 if (isempty(rvalue)) {
2620 /* Empty assignment resets the list */
6796073e 2621 u->documentation = strv_free(u->documentation);
74051b9b
LP		 2622 return 0;
2623 }
2624
71a61510 2625 r = config_parse_unit_strv_printf(unit, filename, line, section, section_line, lvalue, ltype,
e8e581bf 2626 rvalue, data, userdata);
49dbfa7b
LP		 2627 if (r < 0)
2628 return r;
2629
2630 for (a = b = u->documentation; a && *a; a++) {
2631
a2e03378 2632 if (documentation_url_is_valid(*a))
49dbfa7b
LP		 2633 *(b++) = *a;
2634 else {
12ca818f 2635 log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid URL, ignoring: %s", *a);
49dbfa7b
LP		 2636 free(*a);
2637 }
2638 }
f6d2d421
ZJS		 2639 if (b)
2640 *b = NULL;
49dbfa7b
LP		 2641
2642 return r;
2643}
2644
349cc4a5 2645#if HAVE_SECCOMP
17df7223
LP		 2646int config_parse_syscall_filter(
2647 const char *unit,
2648 const char *filename,
2649 unsigned line,
2650 const char *section,
2651 unsigned section_line,
2652 const char *lvalue,
2653 int ltype,
2654 const char *rvalue,
2655 void *data,
2656 void *userdata) {
2657
8351ceae
LP		 2658 ExecContext *c = data;
2659 Unit *u = userdata;
b5fb3789 2660 bool invert = false;
8130926d 2661 const char *p;
17df7223 2662 int r;
8351ceae
LP		 2663
2664 assert(filename);
2665 assert(lvalue);
2666 assert(rvalue);
2667 assert(u);
2668
74051b9b
LP		 2669 if (isempty(rvalue)) {
2670 /* Empty assignment resets the list */
8cfa775f 2671 c->syscall_filter = hashmap_free(c->syscall_filter);
17df7223 2672 c->syscall_whitelist = false;
74051b9b
LP		 2673 return 0;
2674 }
2675
8351ceae
LP		 2676 if (rvalue[0] == '~') {
2677 invert = true;
2678 rvalue++;
2679 }
2680
17df7223 2681 if (!c->syscall_filter) {
8cfa775f 2682 c->syscall_filter = hashmap_new(NULL);
17df7223
LP		 2683 if (!c->syscall_filter)
2684 return log_oom();
2685
c0467cf3 2686 if (invert)
17df7223
LP		 2687 /* Allow everything but the ones listed */
2688 c->syscall_whitelist = false;
c0467cf3 2689 else {
17df7223
LP		 2690 /* Allow nothing but the ones listed */
2691 c->syscall_whitelist = true;
8351ceae 2692
17df7223 2693 /* Accept default syscalls if we are on a whitelist */
13d92c63 2694 r = seccomp_parse_syscall_filter("@default", -1, c->syscall_filter, SECCOMP_PARSE_WHITELIST);
201c1cc2
TM		 2695 if (r < 0)
2696 return r;
c0467cf3 2697 }
8351ceae
LP		 2698 }
2699
8130926d
LP		 2700 p = rvalue;
2701 for (;;) {
8cfa775f
YW		 2702 _cleanup_free_ char *word = NULL, *name = NULL;
2703 int num;
8351ceae 2704
8130926d
LP		 2705 r = extract_first_word(&p, &word, NULL, 0);
2706 if (r == 0)
063c4b1a 2707 return 0;
8130926d 2708 if (r == -ENOMEM)
74051b9b 2709 return log_oom();
8130926d
LP		 2710 if (r < 0) {
2711 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid syntax, ignoring: %s", rvalue);
063c4b1a 2712 return 0;
8130926d 2713 }
8351ceae 2714
8cfa775f
YW		 2715 r = parse_syscall_and_errno(word, &name, &num);
2716 if (r < 0) {
2717 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse syscall:errno, ignoring: %s", word);
2718 continue;
2719 }
2720
13d92c63
LP		 2721 r = seccomp_parse_syscall_filter_full(name, num, c->syscall_filter,
2722 SECCOMP_PARSE_LOG|SECCOMP_PARSE_PERMISSIVE|(invert ? SECCOMP_PARSE_INVERT : 0)|(c->syscall_whitelist ? SECCOMP_PARSE_WHITELIST : 0),
2723 unit, filename, line);
201c1cc2
TM		 2724 if (r < 0)
2725 return r;
c0467cf3 2726 }
17df7223
LP		 2727}
2728
57183d11
LP		 2729int config_parse_syscall_archs(
2730 const char *unit,
2731 const char *filename,
2732 unsigned line,
2733 const char *section,
2734 unsigned section_line,
2735 const char *lvalue,
2736 int ltype,
2737 const char *rvalue,
2738 void *data,
2739 void *userdata) {
2740
063c4b1a 2741 const char *p = rvalue;
d3b1c508 2742 Set **archs = data;
57183d11
LP		 2743 int r;
2744
2745 if (isempty(rvalue)) {
525d3cc7 2746 *archs = set_free(*archs);
57183d11
LP		 2747 return 0;
2748 }
2749
d5099efc 2750 r = set_ensure_allocated(archs, NULL);
57183d11
LP		 2751 if (r < 0)
2752 return log_oom();
2753
063c4b1a 2754 for (;;) {
035fe294 2755 _cleanup_free_ char *word = NULL;
57183d11
LP		 2756 uint32_t a;
2757
035fe294
ZJS		 2758 r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES);
2759 if (r == 0)
2760 return 0;
2761 if (r == -ENOMEM)
57183d11 2762 return log_oom();
035fe294
ZJS		 2763 if (r < 0) {
2764 log_syntax(unit, LOG_WARNING, filename, line, r,
2765 "Invalid syntax, ignoring: %s", rvalue);
2766 return 0;
2767 }
57183d11 2768
035fe294 2769 r = seccomp_arch_from_string(word, &a);
57183d11 2770 if (r < 0) {
035fe294
ZJS		 2771 log_syntax(unit, LOG_ERR, filename, line, r,
2772 "Failed to parse system call architecture \"%s\", ignoring: %m", word);
57183d11
LP		 2773 continue;
2774 }
2775
d3b1c508 2776 r = set_put(*archs, UINT32_TO_PTR(a + 1));
57183d11
LP		 2777 if (r < 0)
2778 return log_oom();
2779 }
57183d11
LP		 2780}
2781
17df7223
LP		 2782int config_parse_syscall_errno(
2783 const char *unit,
2784 const char *filename,
2785 unsigned line,
2786 const char *section,
2787 unsigned section_line,
2788 const char *lvalue,
2789 int ltype,
2790 const char *rvalue,
2791 void *data,
2792 void *userdata) {
2793
2794 ExecContext *c = data;
2795 int e;
2796
2797 assert(filename);
2798 assert(lvalue);
2799 assert(rvalue);
2800
2801 if (isempty(rvalue)) {
2802 /* Empty assignment resets to KILL */
2803 c->syscall_errno = 0;
2804 return 0;
8351ceae
LP		 2805 }
2806
3df90f24
YW		 2807 e = parse_errno(rvalue);
2808 if (e <= 0) {
12ca818f 2809 log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse error number, ignoring: %s", rvalue);
17df7223
LP		 2810 return 0;
2811 }
8351ceae 2812
17df7223 2813 c->syscall_errno = e;
8351ceae
LP		 2814 return 0;
2815}
4298d0b5
LP		 2816
2817int config_parse_address_families(
2818 const char *unit,
2819 const char *filename,
2820 unsigned line,
2821 const char *section,
2822 unsigned section_line,
2823 const char *lvalue,
2824 int ltype,
2825 const char *rvalue,
2826 void *data,
2827 void *userdata) {
2828
2829 ExecContext *c = data;
4298d0b5 2830 bool invert = false;
035fe294 2831 const char *p;
4298d0b5
LP		 2832 int r;
2833
2834 assert(filename);
2835 assert(lvalue);
2836 assert(rvalue);
4298d0b5
LP		 2837
2838 if (isempty(rvalue)) {
2839 /* Empty assignment resets the list */
525d3cc7 2840 c->address_families = set_free(c->address_families);
4298d0b5
LP		 2841 c->address_families_whitelist = false;
2842 return 0;
2843 }
2844
2845 if (rvalue[0] == '~') {
2846 invert = true;
2847 rvalue++;
2848 }
2849
2850 if (!c->address_families) {
d5099efc 2851 c->address_families = set_new(NULL);
4298d0b5
LP		 2852 if (!c->address_families)
2853 return log_oom();
2854
2855 c->address_families_whitelist = !invert;
2856 }
2857
035fe294
ZJS		 2858 for (p = rvalue;;) {
2859 _cleanup_free_ char *word = NULL;
4298d0b5
LP		 2860 int af;
2861
035fe294
ZJS		 2862 r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES);
2863 if (r == 0)
2864 return 0;
2865 if (r == -ENOMEM)
4298d0b5 2866 return log_oom();
035fe294
ZJS		 2867 if (r < 0) {
2868 log_syntax(unit, LOG_WARNING, filename, line, r,
2869 "Invalid syntax, ignoring: %s", rvalue);
2870 return 0;
2871 }
4298d0b5 2872
035fe294 2873 af = af_from_name(word);
063c4b1a 2874 if (af <= 0) {
035fe294 2875 log_syntax(unit, LOG_ERR, filename, line, 0,
063c4b1a 2876 "Failed to parse address family, ignoring: %s", word);
4298d0b5
LP		 2877 continue;
2878 }
2879
2880 /* If we previously wanted to forbid an address family and now
035fe294 2881 * we want to allow it, then just remove it from the list.
4298d0b5
LP		 2882 */
2883 if (!invert == c->address_families_whitelist) {
2884 r = set_put(c->address_families, INT_TO_PTR(af));
4298d0b5
LP		 2885 if (r < 0)
2886 return log_oom();
2887 } else
2888 set_remove(c->address_families, INT_TO_PTR(af));
2889 }
4298d0b5 2890}
add00535
LP		 2891
2892int config_parse_restrict_namespaces(
2893 const char *unit,
2894 const char *filename,
2895 unsigned line,
2896 const char *section,
2897 unsigned section_line,
2898 const char *lvalue,
2899 int ltype,
2900 const char *rvalue,
2901 void *data,
2902 void *userdata) {
2903
2904 ExecContext *c = data;
aa9d574d 2905 unsigned long flags;
add00535
LP		 2906 bool invert = false;
2907 int r;
2908
2909 if (isempty(rvalue)) {
2910 /* Reset to the default. */
aa9d574d
YW		 2911 c->restrict_namespaces = NAMESPACE_FLAGS_INITIAL;
2912 return 0;
2913 }
2914
2915 /* Boolean parameter ignores the previous settings */
2916 r = parse_boolean(rvalue);
2917 if (r > 0) {
2918 c->restrict_namespaces = 0;
2919 return 0;
2920 } else if (r == 0) {
add00535
LP		 2921 c->restrict_namespaces = NAMESPACE_FLAGS_ALL;
2922 return 0;
2923 }
2924
2925 if (rvalue[0] == '~') {
2926 invert = true;
2927 rvalue++;
2928 }
2929
aa9d574d
YW		 2930 /* Not a boolean argument, in this case it's a list of namespace types. */
2931 r = namespace_flags_from_string(rvalue, &flags);
2932 if (r < 0) {
2933 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse namespace type string, ignoring: %s", rvalue);
2934 return 0;
add00535
LP		 2935 }
2936
aa9d574d
YW		 2937 if (c->restrict_namespaces == NAMESPACE_FLAGS_INITIAL)
2938 /* Initial assignment. Just set the value. */
2939 c->restrict_namespaces = invert ? (~flags) & NAMESPACE_FLAGS_ALL : flags;
2940 else
2941 /* Merge the value with the previous one. */
2942 SET_FLAG(c->restrict_namespaces, flags, !invert);
add00535
LP		 2943
2944 return 0;
2945}
c0467cf3 2946#endif
8351ceae 2947
a016b922
LP		 2948int config_parse_unit_slice(
2949 const char *unit,
2950 const char *filename,
2951 unsigned line,
2952 const char *section,
71a61510 2953 unsigned section_line,
a016b922
LP		 2954 const char *lvalue,
2955 int ltype,
2956 const char *rvalue,
2957 void *data,
2958 void *userdata) {
2959
063c4b1a 2960 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
a016b922 2961 _cleanup_free_ char *k = NULL;
d79200e2 2962 Unit *u = userdata, *slice = NULL;
a016b922
LP		 2963 int r;
2964
2965 assert(filename);
2966 assert(lvalue);
2967 assert(rvalue);
2968 assert(u);
2969
19f6d710 2970 r = unit_name_printf(u, rvalue, &k);
d79200e2 2971 if (r < 0) {
063c4b1a 2972 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", rvalue);
d79200e2 2973 return 0;
19f6d710 2974 }
a016b922 2975
063c4b1a 2976 r = manager_load_unit(u->manager, k, NULL, &error, &slice);
a016b922 2977 if (r < 0) {
063c4b1a 2978 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to load slice unit %s, ignoring: %s", k, bus_error_message(&error, r));
a016b922
LP		 2979 return 0;
2980 }
2981
d79200e2
LP		 2982 r = unit_set_slice(u, slice);
2983 if (r < 0) {
063c4b1a 2984 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to assign slice %s to unit %s, ignoring: %m", slice->id, u->id);
a016b922
LP		 2985 return 0;
2986 }
2987
a016b922
LP		 2988 return 0;
2989}
2990
b2f8b02e
LP		 2991int config_parse_cpu_quota(
2992 const char *unit,
2993 const char *filename,
2994 unsigned line,
2995 const char *section,
2996 unsigned section_line,
2997 const char *lvalue,
2998 int ltype,
2999 const char *rvalue,
3000 void *data,
3001 void *userdata) {
3002
3003 CGroupContext *c = data;
9184ca48 3004 int r;
b2f8b02e
LP		 3005
3006 assert(filename);
3007 assert(lvalue);
3008 assert(rvalue);
3009
3010 if (isempty(rvalue)) {
3a43da28 3011 c->cpu_quota_per_sec_usec = USEC_INFINITY;
b2f8b02e
LP		 3012 return 0;
3013 }
3014
f806dfd3 3015 r = parse_permille_unbounded(rvalue);
9184ca48 3016 if (r <= 0) {
063c4b1a 3017 log_syntax(unit, LOG_ERR, filename, line, r, "Invalid CPU quota '%s', ignoring.", rvalue);
9a054909 3018 return 0;
b2f8b02e
LP		 3019 }
3020
f806dfd3 3021 c->cpu_quota_per_sec_usec = ((usec_t) r * USEC_PER_SEC) / 1000U;
b2f8b02e
LP		 3022 return 0;
3023}
3024
4ad49000
LP		 3025int config_parse_memory_limit(
3026 const char *unit,
3027 const char *filename,
3028 unsigned line,
3029 const char *section,
71a61510 3030 unsigned section_line,
4ad49000
LP		 3031 const char *lvalue,
3032 int ltype,
3033 const char *rvalue,
3034 void *data,
3035 void *userdata) {
3036
3037 CGroupContext *c = data;
da4d897e 3038 uint64_t bytes = CGROUP_LIMIT_MAX;
4ad49000
LP		 3039 int r;
3040
e57c9ce1 3041 if (!isempty(rvalue) && !streq(rvalue, "infinity")) {
875ae566 3042
f806dfd3 3043 r = parse_permille(rvalue);
875ae566
LP		 3044 if (r < 0) {
3045 r = parse_size(rvalue, 1024, &bytes);
3046 if (r < 0) {
063c4b1a 3047 log_syntax(unit, LOG_ERR, filename, line, r, "Invalid memory limit '%s', ignoring: %m", rvalue);
875ae566
LP		 3048 return 0;
3049 }
3050 } else
f806dfd3 3051 bytes = physical_memory_scale(r, 1000U);
875ae566 3052
906bdbf5
YW		 3053 if (bytes >= UINT64_MAX ||
3054 (bytes <= 0 && !streq(lvalue, "MemorySwapMax"))) {
063c4b1a 3055 log_syntax(unit, LOG_ERR, filename, line, 0, "Memory limit '%s' out of range, ignoring.", rvalue);
da4d897e
TH		 3056 return 0;
3057 }
4ad49000
LP		 3058 }
3059
48422635
TH		 3060 if (streq(lvalue, "MemoryMin"))
3061 c->memory_min = bytes;
3062 else if (streq(lvalue, "MemoryLow"))
da4d897e
TH		 3063 c->memory_low = bytes;
3064 else if (streq(lvalue, "MemoryHigh"))
3065 c->memory_high = bytes;
3066 else if (streq(lvalue, "MemoryMax"))
3067 c->memory_max = bytes;
96e131ea
WC		 3068 else if (streq(lvalue, "MemorySwapMax"))
3069 c->memory_swap_max = bytes;
3070 else if (streq(lvalue, "MemoryLimit"))
da4d897e 3071 c->memory_limit = bytes;
96e131ea
WC		 3072 else
3073 return -EINVAL;
4ad49000 3074
4ad49000
LP		 3075 return 0;
3076}
3077
03a7b521
LP		 3078int config_parse_tasks_max(
3079 const char *unit,
3080 const char *filename,
3081 unsigned line,
3082 const char *section,
3083 unsigned section_line,
3084 const char *lvalue,
3085 int ltype,
3086 const char *rvalue,
3087 void *data,
3088 void *userdata) {
3089
f5058264
TH		 3090 uint64_t *tasks_max = data, v;
3091 Unit *u = userdata;
03a7b521
LP		 3092 int r;
3093
f5058264 3094 if (isempty(rvalue)) {
958b8c7b 3095 *tasks_max = u ? u->manager->default_tasks_max : UINT64_MAX;
f5058264
TH		 3096 return 0;
3097 }
3098
3099 if (streq(rvalue, "infinity")) {
3100 *tasks_max = CGROUP_LIMIT_MAX;
03a7b521
LP		 3101 return 0;
3102 }
3103
f806dfd3 3104 r = parse_permille(rvalue);
83f8e808 3105 if (r < 0) {
f5058264 3106 r = safe_atou64(rvalue, &v);
83f8e808 3107 if (r < 0) {
063c4b1a 3108 log_syntax(unit, LOG_ERR, filename, line, r, "Invalid maximum tasks value '%s', ignoring: %m", rvalue);
83f8e808
LP		 3109 return 0;
3110 }
3111 } else
f806dfd3 3112 v = system_tasks_max_scale(r, 1000U);
83f8e808 3113
f5058264 3114 if (v <= 0 || v >= UINT64_MAX) {
063c4b1a 3115 log_syntax(unit, LOG_ERR, filename, line, 0, "Maximum tasks value '%s' out of range, ignoring.", rvalue);
03a7b521
LP		 3116 return 0;
3117 }
3118
f5058264 3119 *tasks_max = v;
03a7b521
LP		 3120 return 0;
3121}
3122
02638280
LP		 3123int config_parse_delegate(
3124 const char *unit,
3125 const char *filename,
3126 unsigned line,
3127 const char *section,
3128 unsigned section_line,
3129 const char *lvalue,
3130 int ltype,
3131 const char *rvalue,
3132 void *data,
3133 void *userdata) {
3134
3135 CGroupContext *c = data;
ecae73d7 3136 UnitType t;
02638280
LP		 3137 int r;
3138
ecae73d7
ZJS		 3139 t = unit_name_to_type(unit);
3140 assert(t != _UNIT_TYPE_INVALID);
3141
3142 if (!unit_vtable[t]->can_delegate) {
3143 log_syntax(unit, LOG_ERR, filename, line, 0, "Delegate= setting not supported for this unit type, ignoring.");
3144 return 0;
3145 }
3146
02638280
LP		 3147 /* We either accept a boolean value, which may be used to turn on delegation for all controllers, or turn it
3148 * off for all. Or it takes a list of controller names, in which case we add the specified controllers to the
3149 * mask to delegate. */
3150
1bdfc7b9 3151 if (isempty(rvalue)) {
d48013f8
YW		 3152 /* An empty string resets controllers and set Delegate=yes. */
3153 c->delegate = true;
1bdfc7b9
YW		 3154 c->delegate_controllers = 0;
3155 return 0;
3156 }
3157
02638280
LP		 3158 r = parse_boolean(rvalue);
3159 if (r < 0) {
3160 const char *p = rvalue;
3161 CGroupMask mask = 0;
3162
3163 for (;;) {
3164 _cleanup_free_ char *word = NULL;
3165 CGroupController cc;
3166
3167 r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES);
3168 if (r == 0)
3169 break;
3170 if (r == -ENOMEM)
3171 return log_oom();
3172 if (r < 0) {
3173 log_syntax(unit, LOG_ERR, filename, line, r, "Invalid syntax, ignoring: %s", rvalue);
ff1b8455 3174 return 0;
02638280
LP		 3175 }
3176
3177 cc = cgroup_controller_from_string(word);
3178 if (cc < 0) {
063c4b1a 3179 log_syntax(unit, LOG_ERR, filename, line, r, "Invalid controller name '%s', ignoring", word);
02638280
LP		 3180 continue;
3181 }
3182
3183 mask |= CGROUP_CONTROLLER_TO_MASK(cc);
3184 }
3185
3186 c->delegate = true;
3187 c->delegate_controllers |= mask;
3188
3189 } else if (r > 0) {
3190 c->delegate = true;
3191 c->delegate_controllers = _CGROUP_MASK_ALL;
3192 } else {
3193 c->delegate = false;
3194 c->delegate_controllers = 0;
3195 }
3196
3197 return 0;
3198}
3199
4ad49000
LP		 3200int config_parse_device_allow(
3201 const char *unit,
3202 const char *filename,
3203 unsigned line,
3204 const char *section,
71a61510 3205 unsigned section_line,
4ad49000
LP		 3206 const char *lvalue,
3207 int ltype,
3208 const char *rvalue,
3209 void *data,
3210 void *userdata) {
3211
c9f620bf 3212 _cleanup_free_ char *path = NULL, *resolved = NULL;
4ad49000 3213 CGroupContext *c = data;
c9f620bf 3214 const char *p = rvalue;
1116e14c 3215 int r;
4ad49000
LP		 3216
3217 if (isempty(rvalue)) {
3218 while (c->device_allow)
3219 cgroup_context_free_device_allow(c, c->device_allow);
3220
3221 return 0;
3222 }
3223
c9f620bf
YW		 3224 r = extract_first_word(&p, &path, NULL, EXTRACT_QUOTES);
3225 if (r == -ENOMEM)
3226 return log_oom();
508f63b4 3227 if (r < 0) {
1116e14c 3228 log_syntax(unit, LOG_WARNING, filename, line, r,
c9f620bf
YW		 3229 "Invalid syntax, ignoring: %s", rvalue);
3230 return 0;
3231 }
3232 if (r == 0) {
3233 log_syntax(unit, LOG_WARNING, filename, line, 0,
3234 "Failed to extract device path and rights from '%s', ignoring.", rvalue);
20d52ab6 3235 return 0;
1116e14c
NBS		 3236 }
3237
c9f620bf
YW		 3238 r = unit_full_printf(userdata, path, &resolved);
3239 if (r < 0) {
3240 log_syntax(unit, LOG_WARNING, filename, line, r,
3241 "Failed to resolve unit specifiers in '%s', ignoring: %m", path);
4ad49000
LP		 3242 return 0;
3243 }
3244
57e84e75 3245 if (!startswith(resolved, "block-") && !startswith(resolved, "char-")) {
2f4d31c1 3246
57e84e75
LP		 3247 r = path_simplify_and_warn(resolved, 0, unit, filename, line, lvalue);
3248 if (r < 0)
3249 return 0;
3250
3251 if (!valid_device_node_path(resolved)) {
3252 log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid device node path '%s', ignoring.", resolved);
3253 return 0;
3254 }
c9f620bf 3255 }
4ad49000 3256
c9f620bf
YW		 3257 if (!isempty(p) && !in_charset(p, "rwm")) {
3258 log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid device rights '%s', ignoring.", p);
4ad49000
LP		 3259 return 0;
3260 }
3261
fd870bac 3262 return cgroup_add_device_allow(c, resolved, p);
4ad49000
LP		 3263}
3264
13c31542
TH		 3265int config_parse_io_device_weight(
3266 const char *unit,
3267 const char *filename,
3268 unsigned line,
3269 const char *section,
3270 unsigned section_line,
3271 const char *lvalue,
3272 int ltype,
3273 const char *rvalue,
3274 void *data,
3275 void *userdata) {
3276
c9f620bf 3277 _cleanup_free_ char *path = NULL, *resolved = NULL;
13c31542
TH		 3278 CGroupIODeviceWeight *w;
3279 CGroupContext *c = data;
c9f620bf 3280 const char *p = rvalue;
13c31542 3281 uint64_t u;
13c31542
TH		 3282 int r;
3283
3284 assert(filename);
3285 assert(lvalue);
3286 assert(rvalue);
3287
3288 if (isempty(rvalue)) {
3289 while (c->io_device_weights)
3290 cgroup_context_free_io_device_weight(c, c->io_device_weights);
3291
3292 return 0;
3293 }
3294
c9f620bf
YW		 3295 r = extract_first_word(&p, &path, NULL, EXTRACT_QUOTES);
3296 if (r == -ENOMEM)
3297 return log_oom();
3298 if (r < 0) {
3299 log_syntax(unit, LOG_WARNING, filename, line, r,
3300 "Invalid syntax, ignoring: %s", rvalue);
3301 return 0;
3302 }
3303 if (r == 0 || isempty(p)) {
3304 log_syntax(unit, LOG_WARNING, filename, line, 0,
3305 "Failed to extract device path and weight from '%s', ignoring.", rvalue);
13c31542
TH		 3306 return 0;
3307 }
3308
c9f620bf
YW		 3309 r = unit_full_printf(userdata, path, &resolved);
3310 if (r < 0) {
3311 log_syntax(unit, LOG_WARNING, filename, line, r,
3312 "Failed to resolve unit specifiers in '%s', ignoring: %m", path);
3313 return 0;
3314 }
13c31542 3315
2f4d31c1
YW		 3316 r = path_simplify_and_warn(resolved, 0, unit, filename, line, lvalue);
3317 if (r < 0)
3318 return 0;
3319
c9f620bf 3320 r = cg_weight_parse(p, &u);
13c31542 3321 if (r < 0) {
c9f620bf 3322 log_syntax(unit, LOG_ERR, filename, line, r, "IO weight '%s' invalid, ignoring: %m", p);
13c31542
TH		 3323 return 0;
3324 }
3325
3326 assert(u != CGROUP_WEIGHT_INVALID);
3327
3328 w = new0(CGroupIODeviceWeight, 1);
3329 if (!w)
3330 return log_oom();
3331
c9f620bf 3332 w->path = TAKE_PTR(resolved);
13c31542
TH		 3333 w->weight = u;
3334
3335 LIST_PREPEND(device_weights, c->io_device_weights, w);
3336 return 0;
3337}
3338
6ae4283c
TH		 3339int config_parse_io_device_latency(
3340 const char *unit,
3341 const char *filename,
3342 unsigned line,
3343 const char *section,
3344 unsigned section_line,
3345 const char *lvalue,
3346 int ltype,
3347 const char *rvalue,
3348 void *data,
3349 void *userdata) {
3350
3351 _cleanup_free_ char *path = NULL, *resolved = NULL;
3352 CGroupIODeviceLatency *l;
3353 CGroupContext *c = data;
3354 const char *p = rvalue;
3355 usec_t usec;
3356 int r;
3357
3358 assert(filename);
3359 assert(lvalue);
3360 assert(rvalue);
3361
3362 if (isempty(rvalue)) {
3363 while (c->io_device_latencies)
3364 cgroup_context_free_io_device_latency(c, c->io_device_latencies);
3365
3366 return 0;
3367 }
3368
3369 r = extract_first_word(&p, &path, NULL, EXTRACT_QUOTES);
3370 if (r == -ENOMEM)
3371 return log_oom();
3372 if (r < 0) {
3373 log_syntax(unit, LOG_WARNING, filename, line, r,
3374 "Invalid syntax, ignoring: %s", rvalue);
3375 return 0;
3376 }
3377 if (r == 0 || isempty(p)) {
3378 log_syntax(unit, LOG_WARNING, filename, line, 0,
3379 "Failed to extract device path and latency from '%s', ignoring.", rvalue);
3380 return 0;
3381 }
3382
3383 r = unit_full_printf(userdata, path, &resolved);
3384 if (r < 0) {
3385 log_syntax(unit, LOG_WARNING, filename, line, r,
3386 "Failed to resolve unit specifiers in '%s', ignoring: %m", path);
3387 return 0;
3388 }
3389
3390 r = path_simplify_and_warn(resolved, 0, unit, filename, line, lvalue);
3391 if (r < 0)
3392 return 0;
3393
3394 if (parse_sec(p, &usec) < 0) {
3395 log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse timer value, ignoring: %s", p);
3396 return 0;
3397 }
3398
3399 l = new0(CGroupIODeviceLatency, 1);
3400 if (!l)
3401 return log_oom();
3402
3403 l->path = TAKE_PTR(resolved);
3404 l->target_usec = usec;
3405
3406 LIST_PREPEND(device_latencies, c->io_device_latencies, l);
3407 return 0;
3408}
3409
13c31542
TH		 3410int config_parse_io_limit(
3411 const char *unit,
3412 const char *filename,
3413 unsigned line,
3414 const char *section,
3415 unsigned section_line,
3416 const char *lvalue,
3417 int ltype,
3418 const char *rvalue,
3419 void *data,
3420 void *userdata) {
3421
c9f620bf 3422 _cleanup_free_ char *path = NULL, *resolved = NULL;
13c31542
TH		 3423 CGroupIODeviceLimit *l = NULL, *t;
3424 CGroupContext *c = data;
9be57249 3425 CGroupIOLimitType type;
c9f620bf 3426 const char *p = rvalue;
13c31542 3427 uint64_t num;
13c31542
TH		 3428 int r;
3429
3430 assert(filename);
3431 assert(lvalue);
3432 assert(rvalue);
3433
9be57249
TH		 3434 type = cgroup_io_limit_type_from_string(lvalue);
3435 assert(type >= 0);
13c31542
TH		 3436
3437 if (isempty(rvalue)) {
3438 LIST_FOREACH(device_limits, l, c->io_device_limits)
9be57249 3439 l->limits[type] = cgroup_io_limit_defaults[type];
13c31542
TH		 3440 return 0;
3441 }
3442
c9f620bf
YW		 3443 r = extract_first_word(&p, &path, NULL, EXTRACT_QUOTES);
3444 if (r == -ENOMEM)
3445 return log_oom();
3446 if (r < 0) {
3447 log_syntax(unit, LOG_WARNING, filename, line, r,
3448 "Invalid syntax, ignoring: %s", rvalue);
3449 return 0;
3450 }
3451 if (r == 0 || isempty(p)) {
3452 log_syntax(unit, LOG_WARNING, filename, line, 0,
3453 "Failed to extract device node and bandwidth from '%s', ignoring.", rvalue);
13c31542
TH		 3454 return 0;
3455 }
3456
c9f620bf
YW		 3457 r = unit_full_printf(userdata, path, &resolved);
3458 if (r < 0) {
3459 log_syntax(unit, LOG_WARNING, filename, line, r,
3460 "Failed to resolve unit specifiers in '%s', ignoring: %m", path);
3461 return 0;
3462 }
13c31542 3463
2f4d31c1
YW		 3464 r = path_simplify_and_warn(resolved, 0, unit, filename, line, lvalue);
3465 if (r < 0)
3466 return 0;
3467
9d5e9b4a 3468 if (streq("infinity", p))
13c31542 3469 num = CGROUP_LIMIT_MAX;
9d5e9b4a 3470 else {
c9f620bf 3471 r = parse_size(p, 1000, &num);
13c31542 3472 if (r < 0 || num <= 0) {
c9f620bf 3473 log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid IO limit '%s', ignoring.", p);
13c31542
TH		 3474 return 0;
3475 }
3476 }
3477
3478 LIST_FOREACH(device_limits, t, c->io_device_limits) {
c9f620bf 3479 if (path_equal(resolved, t->path)) {
13c31542
TH		 3480 l = t;
3481 break;
3482 }
3483 }
3484
3485 if (!l) {
9be57249
TH		 3486 CGroupIOLimitType ttype;
3487
13c31542
TH		 3488 l = new0(CGroupIODeviceLimit, 1);
3489 if (!l)
3490 return log_oom();
3491
c9f620bf 3492 l->path = TAKE_PTR(resolved);
9be57249
TH		 3493 for (ttype = 0; ttype < _CGROUP_IO_LIMIT_TYPE_MAX; ttype++)
3494 l->limits[ttype] = cgroup_io_limit_defaults[ttype];
13c31542
TH		 3495
3496 LIST_PREPEND(device_limits, c->io_device_limits, l);
3497 }
3498
9be57249 3499 l->limits[type] = num;
13c31542
TH		 3500
3501 return 0;
3502}
3503
8e7076ca
LP		 3504int config_parse_blockio_device_weight(
3505 const char *unit,
3506 const char *filename,
3507 unsigned line,
3508 const char *section,
71a61510 3509 unsigned section_line,
8e7076ca
LP		 3510 const char *lvalue,
3511 int ltype,
3512 const char *rvalue,
3513 void *data,
3514 void *userdata) {
3515
c9f620bf 3516 _cleanup_free_ char *path = NULL, *resolved = NULL;
8e7076ca 3517 CGroupBlockIODeviceWeight *w;
4ad49000 3518 CGroupContext *c = data;
c9f620bf 3519 const char *p = rvalue;
d53d9474 3520 uint64_t u;
4ad49000
LP		 3521 int r;
3522
3523 assert(filename);
3524 assert(lvalue);
3525 assert(rvalue);
3526
3527 if (isempty(rvalue)) {
4ad49000
LP		 3528 while (c->blockio_device_weights)
3529 cgroup_context_free_blockio_device_weight(c, c->blockio_device_weights);
3530
3531 return 0;
3532 }
3533
c9f620bf
YW		 3534 r = extract_first_word(&p, &path, NULL, EXTRACT_QUOTES);
3535 if (r == -ENOMEM)
3536 return log_oom();
3537 if (r < 0) {
3538 log_syntax(unit, LOG_WARNING, filename, line, r,
3539 "Invalid syntax, ignoring: %s", rvalue);
3540 return 0;
3541 }
3542 if (r == 0 || isempty(p)) {
3543 log_syntax(unit, LOG_WARNING, filename, line, 0,
3544 "Failed to extract device node and weight from '%s', ignoring.", rvalue);
8e7076ca
LP		 3545 return 0;
3546 }
4ad49000 3547
c9f620bf
YW		 3548 r = unit_full_printf(userdata, path, &resolved);
3549 if (r < 0) {
3550 log_syntax(unit, LOG_WARNING, filename, line, r,
3551 "Failed to resolve unit specifiers in '%s', ignoring: %m", path);
3552 return 0;
3553 }
4ad49000 3554
2f4d31c1
YW		 3555 r = path_simplify_and_warn(resolved, 0, unit, filename, line, lvalue);
3556 if (r < 0)
3557 return 0;
3558
c9f620bf 3559 r = cg_blkio_weight_parse(p, &u);
d53d9474 3560 if (r < 0) {
c9f620bf 3561 log_syntax(unit, LOG_ERR, filename, line, r, "Invalid block IO weight '%s', ignoring: %m", p);
4ad49000
LP		 3562 return 0;
3563 }
3564
d53d9474
LP		 3565 assert(u != CGROUP_BLKIO_WEIGHT_INVALID);
3566
8e7076ca
LP		 3567 w = new0(CGroupBlockIODeviceWeight, 1);
3568 if (!w)
3569 return log_oom();
4ad49000 3570
c9f620bf 3571 w->path = TAKE_PTR(resolved);
d53d9474 3572 w->weight = u;
4ad49000 3573
71fda00f 3574 LIST_PREPEND(device_weights, c->blockio_device_weights, w);
4ad49000
LP		 3575 return 0;
3576}
3577
3578int config_parse_blockio_bandwidth(
3579 const char *unit,
3580 const char *filename,
3581 unsigned line,
3582 const char *section,
71a61510 3583 unsigned section_line,
4ad49000
LP		 3584 const char *lvalue,
3585 int ltype,
3586 const char *rvalue,
3587 void *data,
3588 void *userdata) {
3589
c9f620bf 3590 _cleanup_free_ char *path = NULL, *resolved = NULL;
979d0311 3591 CGroupBlockIODeviceBandwidth *b = NULL, *t;
4ad49000 3592 CGroupContext *c = data;
c9f620bf 3593 const char *p = rvalue;
59f448cf 3594 uint64_t bytes;
47c0980d 3595 bool read;
4ad49000
LP		 3596 int r;
3597
3598 assert(filename);
3599 assert(lvalue);
3600 assert(rvalue);
3601
47c0980d
G		 3602 read = streq("BlockIOReadBandwidth", lvalue);
3603
4ad49000 3604 if (isempty(rvalue)) {
979d0311
TH		 3605 LIST_FOREACH(device_bandwidths, b, c->blockio_device_bandwidths) {
3606 b->rbps = CGROUP_LIMIT_MAX;
3607 b->wbps = CGROUP_LIMIT_MAX;
3608 }
4ad49000
LP		 3609 return 0;
3610 }
3611
c9f620bf
YW		 3612 r = extract_first_word(&p, &path, NULL, EXTRACT_QUOTES);
3613 if (r == -ENOMEM)
3614 return log_oom();
3615 if (r < 0) {
3616 log_syntax(unit, LOG_WARNING, filename, line, r,
3617 "Invalid syntax, ignoring: %s", rvalue);
3618 return 0;
3619 }
3620 if (r == 0 || isempty(p)) {
3621 log_syntax(unit, LOG_WARNING, filename, line, 0,
3622 "Failed to extract device node and bandwidth from '%s', ignoring.", rvalue);
4ad49000
LP		 3623 return 0;
3624 }
3625
c9f620bf
YW		 3626 r = unit_full_printf(userdata, path, &resolved);
3627 if (r < 0) {
3628 log_syntax(unit, LOG_WARNING, filename, line, r,
3629 "Failed to resolve unit specifiers in '%s', ignoring: %m", path);
3630 return 0;
3631 }
4ad49000 3632
2f4d31c1
YW		 3633 r = path_simplify_and_warn(resolved, 0, unit, filename, line, lvalue);
3634 if (r < 0)
3635 return 0;
3636
c9f620bf 3637 r = parse_size(p, 1000, &bytes);
4ad49000 3638 if (r < 0 || bytes <= 0) {
c9f620bf 3639 log_syntax(unit, LOG_ERR, filename, line, r, "Invalid Block IO Bandwidth '%s', ignoring.", p);
4ad49000
LP		 3640 return 0;
3641 }
3642
979d0311 3643 LIST_FOREACH(device_bandwidths, t, c->blockio_device_bandwidths) {
c9f620bf 3644 if (path_equal(resolved, t->path)) {
979d0311
TH		 3645 b = t;
3646 break;
3647 }
3648 }
4ad49000 3649
979d0311
TH		 3650 if (!t) {
3651 b = new0(CGroupBlockIODeviceBandwidth, 1);
3652 if (!b)
3653 return log_oom();
3654
c9f620bf 3655 b->path = TAKE_PTR(resolved);
979d0311
TH		 3656 b->rbps = CGROUP_LIMIT_MAX;
3657 b->wbps = CGROUP_LIMIT_MAX;
3658
3659 LIST_PREPEND(device_bandwidths, c->blockio_device_bandwidths, b);
3660 }
4ad49000 3661
979d0311
TH		 3662 if (read)
3663 b->rbps = bytes;
3664 else
3665 b->wbps = bytes;
4ad49000
LP		 3666
3667 return 0;
3668}
3669
d420282b
LP		 3670int config_parse_job_mode_isolate(
3671 const char *unit,
3672 const char *filename,
3673 unsigned line,
3674 const char *section,
3675 unsigned section_line,
3676 const char *lvalue,
3677 int ltype,
3678 const char *rvalue,
3679 void *data,
3680 void *userdata) {
3681
3682 JobMode *m = data;
3683 int r;
3684
3685 assert(filename);
3686 assert(lvalue);
3687 assert(rvalue);
3688
3689 r = parse_boolean(rvalue);
3690 if (r < 0) {
12ca818f 3691 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse boolean, ignoring: %s", rvalue);
d420282b
LP		 3692 return 0;
3693 }
3694
8ab39347
YW		 3695 log_notice("%s is deprecated. Please use OnFailureJobMode= instead", lvalue);
3696
d420282b
LP		 3697 *m = r ? JOB_ISOLATE : JOB_REPLACE;
3698 return 0;
3699}
3700
3536f49e 3701int config_parse_exec_directories(
e66cf1a3
LP		 3702 const char *unit,
3703 const char *filename,
3704 unsigned line,
3705 const char *section,
3706 unsigned section_line,
3707 const char *lvalue,
3708 int ltype,
3709 const char *rvalue,
3710 void *data,
3711 void *userdata) {
3712
a2a5291b 3713 char***rt = data;
9b5864d9 3714 Unit *u = userdata;
035fe294 3715 const char *p;
e66cf1a3
LP		 3716 int r;
3717
3718 assert(filename);
3719 assert(lvalue);
3720 assert(rvalue);
3721 assert(data);
3722
3723 if (isempty(rvalue)) {
3724 /* Empty assignment resets the list */
6796073e 3725 *rt = strv_free(*rt);
e66cf1a3
LP		 3726 return 0;
3727 }
3728
035fe294
ZJS		 3729 for (p = rvalue;;) {
3730 _cleanup_free_ char *word = NULL, *k = NULL;
e66cf1a3 3731
035fe294 3732 r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES);
035fe294 3733 if (r == -ENOMEM)
e66cf1a3 3734 return log_oom();
035fe294
ZJS		 3735 if (r < 0) {
3736 log_syntax(unit, LOG_WARNING, filename, line, r,
3737 "Invalid syntax, ignoring: %s", rvalue);
3738 return 0;
3739 }
091e9efe
LP		 3740 if (r == 0)
3741 return 0;
e66cf1a3 3742
18913df9 3743 r = unit_full_printf(u, word, &k);
9b5864d9 3744 if (r < 0) {
035fe294 3745 log_syntax(unit, LOG_ERR, filename, line, r,
063c4b1a 3746 "Failed to resolve unit specifiers in \"%s\", ignoring: %m", word);
9b5864d9
MG		 3747 continue;
3748 }
3749
2f4d31c1
YW		 3750 r = path_simplify_and_warn(k, PATH_CHECK_RELATIVE, unit, filename, line, lvalue);
3751 if (r < 0)
e8865688 3752 continue;
e8865688
LP		 3753
3754 if (path_startswith(k, "private")) {
3755 log_syntax(unit, LOG_ERR, filename, line, 0,
2f4d31c1 3756 "%s= path can't be 'private', ingoring assignment: %s", lvalue, word);
e66cf1a3
LP		 3757 continue;
3758 }
3759
035fe294 3760 r = strv_push(rt, k);
e66cf1a3
LP		 3761 if (r < 0)
3762 return log_oom();
035fe294 3763 k = NULL;
e66cf1a3 3764 }
e66cf1a3
LP		 3765}
3766
3af00fb8
LP		 3767int config_parse_set_status(
3768 const char *unit,
3769 const char *filename,
3770 unsigned line,
3771 const char *section,
3772 unsigned section_line,
3773 const char *lvalue,
3774 int ltype,
3775 const char *rvalue,
3776 void *data,
3777 void *userdata) {
3778
3af00fb8 3779 size_t l;
a2a5291b 3780 const char *word, *state;
3af00fb8
LP		 3781 int r;
3782 ExitStatusSet *status_set = data;
3783
3784 assert(filename);
3785 assert(lvalue);
3786 assert(rvalue);
3787 assert(data);
3788
3e2d435b 3789 /* Empty assignment resets the list */
3af00fb8 3790 if (isempty(rvalue)) {
3e2d435b 3791 exit_status_set_free(status_set);
3af00fb8
LP		 3792 return 0;
3793 }
3794
a2a5291b 3795 FOREACH_WORD(word, l, rvalue, state) {
3af00fb8
LP		 3796 _cleanup_free_ char *temp;
3797 int val;
61593865 3798 Set **set;
3af00fb8 3799
a2a5291b 3800 temp = strndup(word, l);
3af00fb8
LP		 3801 if (!temp)
3802 return log_oom();
3803
3804 r = safe_atoi(temp, &val);
3805 if (r < 0) {
29a3db75 3806 val = signal_from_string(temp);
3af00fb8 3807
1e2fd62d 3808 if (val <= 0) {
12ca818f 3809 log_syntax(unit, LOG_ERR, filename, line, 0, "Failed to parse value, ignoring: %s", word);
61593865 3810 continue;
3af00fb8 3811 }
61593865 3812 set = &status_set->signal;
3af00fb8 3813 } else {
1e2fd62d 3814 if (val < 0 || val > 255) {
12ca818f 3815 log_syntax(unit, LOG_ERR, filename, line, 0, "Value %d is outside range 0-255, ignoring", val);
1e2fd62d 3816 continue;
3af00fb8 3817 }
61593865 3818 set = &status_set->status;
3af00fb8 3819 }
1e2fd62d 3820
61593865 3821 r = set_ensure_allocated(set, NULL);
1e2fd62d
ZJS		 3822 if (r < 0)
3823 return log_oom();
3824
61593865 3825 r = set_put(*set, INT_TO_PTR(val));
063c4b1a
YW		 3826 if (r < 0)
3827 return log_oom();
3af00fb8 3828 }
b2fadec6 3829 if (!isempty(state))
12ca818f 3830 log_syntax(unit, LOG_ERR, filename, line, 0, "Trailing garbage, ignoring.");
3af00fb8
LP		 3831
3832 return 0;
3833}
3834
94828d2d
LP		 3835int config_parse_namespace_path_strv(
3836 const char *unit,
3837 const char *filename,
3838 unsigned line,
3839 const char *section,
3840 unsigned section_line,
3841 const char *lvalue,
3842 int ltype,
3843 const char *rvalue,
3844 void *data,
3845 void *userdata) {
3846
7b07e993 3847 Unit *u = userdata;
a2a5291b 3848 char*** sv = data;
063c4b1a 3849 const char *p = rvalue;
94828d2d
LP		 3850 int r;
3851
3852 assert(filename);
3853 assert(lvalue);
3854 assert(rvalue);
3855 assert(data);
3856
3857 if (isempty(rvalue)) {
3858 /* Empty assignment resets the list */
6796073e 3859 *sv = strv_free(*sv);
94828d2d
LP		 3860 return 0;
3861 }
3862
727f76d7 3863 for (;;) {
7b07e993 3864 _cleanup_free_ char *word = NULL, *resolved = NULL, *joined = NULL;
20b7a007
LP		 3865 const char *w;
3866 bool ignore_enoent = false, shall_prefix = false;
94828d2d 3867
063c4b1a 3868 r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES);
0293a7a8
EV		 3869 if (r == 0)
3870 break;
3871 if (r == -ENOMEM)
3872 return log_oom();
727f76d7 3873 if (r < 0) {
7b07e993 3874 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to extract first word, ignoring: %s", rvalue);
727f76d7
EV		 3875 return 0;
3876 }
94828d2d 3877
20b7a007
LP		 3878 w = word;
3879 if (startswith(w, "-")) {
3880 ignore_enoent = true;
3881 w++;
3882 }
3883 if (startswith(w, "+")) {
3884 shall_prefix = true;
3885 w++;
3886 }
7b07e993 3887
20b7a007 3888 r = unit_full_printf(u, w, &resolved);
7b07e993 3889 if (r < 0) {
063c4b1a 3890 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in %s: %m", w);
94828d2d
LP		 3891 continue;
3892 }
3893
2f4d31c1
YW		 3894 r = path_simplify_and_warn(resolved, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
3895 if (r < 0)
7b07e993 3896 continue;
94828d2d 3897
20b7a007
LP		 3898 joined = strjoin(ignore_enoent ? "-" : "",
3899 shall_prefix ? "+" : "",
3900 resolved);
7b07e993
LP		 3901
3902 r = strv_push(sv, joined);
94828d2d
LP		 3903 if (r < 0)
3904 return log_oom();
3905
7b07e993 3906 joined = NULL;
94828d2d
LP		 3907 }
3908
3909 return 0;
3910}
3911
2abd4e38
YW		 3912int config_parse_temporary_filesystems(
3913 const char *unit,
3914 const char *filename,
3915 unsigned line,
3916 const char *section,
3917 unsigned section_line,
3918 const char *lvalue,
3919 int ltype,
3920 const char *rvalue,
3921 void *data,
3922 void *userdata) {
3923
3924 Unit *u = userdata;
3925 ExecContext *c = data;
063c4b1a 3926 const char *p = rvalue;
2abd4e38
YW		 3927 int r;
3928
3929 assert(filename);
3930 assert(lvalue);
3931 assert(rvalue);
3932 assert(data);
3933
3934 if (isempty(rvalue)) {
3935 /* Empty assignment resets the list */
3936 temporary_filesystem_free_many(c->temporary_filesystems, c->n_temporary_filesystems);
3937 c->temporary_filesystems = NULL;
3938 c->n_temporary_filesystems = 0;
3939 return 0;
3940 }
3941
2abd4e38
YW		 3942 for (;;) {
3943 _cleanup_free_ char *word = NULL, *path = NULL, *resolved = NULL;
3944 const char *w;
3945
063c4b1a 3946 r = extract_first_word(&p, &word, NULL, EXTRACT_QUOTES);
2abd4e38 3947 if (r == 0)
063c4b1a 3948 return 0;
2abd4e38
YW		 3949 if (r == -ENOMEM)
3950 return log_oom();
3951 if (r < 0) {
3952 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to extract first word, ignoring: %s", rvalue);
3953 return 0;
3954 }
3955
3956 w = word;
3957 r = extract_first_word(&w, &path, ":", EXTRACT_DONT_COALESCE_SEPARATORS);
063c4b1a
YW		 3958 if (r == -ENOMEM)
3959 return log_oom();
3960 if (r < 0) {
3961 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to extract first word, ignoring: %s", word);
3962 continue;
3963 }
3964 if (r == 0) {
3965 log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid syntax, ignoring: %s", word);
3966 continue;
3967 }
2abd4e38
YW		 3968
3969 r = unit_full_printf(u, path, &resolved);
3970 if (r < 0) {
063c4b1a 3971 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", path);
2abd4e38
YW		 3972 continue;
3973 }
3974
2f4d31c1
YW		 3975 r = path_simplify_and_warn(resolved, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
3976 if (r < 0)
2abd4e38 3977 continue;
2abd4e38 3978
a26fec24 3979 r = temporary_filesystem_add(&c->temporary_filesystems, &c->n_temporary_filesystems, resolved, w);
6302d1ea 3980 if (r < 0)
2abd4e38 3981 return log_oom();
2abd4e38 3982 }
2abd4e38
YW		 3983}
3984
d2d6c096
LP		 3985int config_parse_bind_paths(
3986 const char *unit,
3987 const char *filename,
3988 unsigned line,
3989 const char *section,
3990 unsigned section_line,
3991 const char *lvalue,
3992 int ltype,
3993 const char *rvalue,
3994 void *data,
3995 void *userdata) {
3996
3997 ExecContext *c = data;
42d43f21 3998 Unit *u = userdata;
d2d6c096
LP		 3999 const char *p;
4000 int r;
4001
4002 assert(filename);
4003 assert(lvalue);
4004 assert(rvalue);
4005 assert(data);
4006
4007 if (isempty(rvalue)) {
4008 /* Empty assignment resets the list */
4009 bind_mount_free_many(c->bind_mounts, c->n_bind_mounts);
4010 c->bind_mounts = NULL;
4011 c->n_bind_mounts = 0;
4012 return 0;
4013 }
4014
4015 p = rvalue;
4016 for (;;) {
4017 _cleanup_free_ char *source = NULL, *destination = NULL;
42d43f21 4018 _cleanup_free_ char *sresolved = NULL, *dresolved = NULL;
d2d6c096
LP		 4019 char *s = NULL, *d = NULL;
4020 bool rbind = true, ignore_enoent = false;
4021
4022 r = extract_first_word(&p, &source, ":" WHITESPACE, EXTRACT_QUOTES|EXTRACT_DONT_COALESCE_SEPARATORS);
4023 if (r == 0)
4024 break;
4025 if (r == -ENOMEM)
4026 return log_oom();
4027 if (r < 0) {
2f4d31c1 4028 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse %s, ignoring: %s", lvalue, rvalue);
d2d6c096
LP		 4029 return 0;
4030 }
4031
42d43f21
DC		 4032 r = unit_full_printf(u, source, &sresolved);
4033 if (r < 0) {
4034 log_syntax(unit, LOG_ERR, filename, line, r,
063c4b1a 4035 "Failed to resolved unit specifiers in \"%s\", ignoring: %m", source);
2f4d31c1 4036 continue;
42d43f21
DC		 4037 }
4038
4039 s = sresolved;
d2d6c096
LP		 4040 if (s[0] == '-') {
4041 ignore_enoent = true;
4042 s++;
4043 }
4044
2f4d31c1
YW		 4045 r = path_simplify_and_warn(s, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
4046 if (r < 0)
4047 continue;
d2d6c096
LP		 4048
4049 /* Optionally, the destination is specified. */
4050 if (p && p[-1] == ':') {
4051 r = extract_first_word(&p, &destination, ":" WHITESPACE, EXTRACT_QUOTES|EXTRACT_DONT_COALESCE_SEPARATORS);
4052 if (r == -ENOMEM)
4053 return log_oom();
4054 if (r < 0) {
2f4d31c1 4055 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse %s, ignoring: %s", lvalue, rvalue);
d2d6c096
LP		 4056 return 0;
4057 }
4058 if (r == 0) {
2f4d31c1
YW		 4059 log_syntax(unit, LOG_ERR, filename, line, 0, "Missing argument after ':', ignoring: %s", s);
4060 continue;
d2d6c096
LP		 4061 }
4062
42d43f21
DC		 4063 r = unit_full_printf(u, destination, &dresolved);
4064 if (r < 0) {
4065 log_syntax(unit, LOG_ERR, filename, line, r,
4066 "Failed to resolved specifiers in \"%s\", ignoring: %m", destination);
2f4d31c1 4067 continue;
42d43f21
DC		 4068 }
4069
2f4d31c1
YW		 4070 r = path_simplify_and_warn(dresolved, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
4071 if (r < 0)
4072 continue;
d2d6c096 4073
2f4d31c1 4074 d = dresolved;
d2d6c096
LP		 4075
4076 /* Optionally, there's also a short option string specified */
4077 if (p && p[-1] == ':') {
4078 _cleanup_free_ char *options = NULL;
4079
4080 r = extract_first_word(&p, &options, NULL, EXTRACT_QUOTES);
4081 if (r == -ENOMEM)
4082 return log_oom();
4083 if (r < 0) {
4084 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse %s: %s", lvalue, rvalue);
4085 return 0;
4086 }
4087
4088 if (isempty(options) || streq(options, "rbind"))
4089 rbind = true;
4090 else if (streq(options, "norbind"))
4091 rbind = false;
4092 else {
4093 log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid option string, ignoring setting: %s", options);
2f4d31c1 4094 continue;
d2d6c096
LP		 4095 }
4096 }
4097 } else
4098 d = s;
4099
4100 r = bind_mount_add(&c->bind_mounts, &c->n_bind_mounts,
4101 &(BindMount) {
4102 .source = s,
4103 .destination = d,
4104 .read_only = !!strstr(lvalue, "ReadOnly"),
4105 .recursive = rbind,
4106 .ignore_enoent = ignore_enoent,
4107 });
4108 if (r < 0)
4109 return log_oom();
4110 }
4111
4112 return 0;
4113}
4114
eae51da3
LP		 4115int config_parse_job_timeout_sec(
4116 const char* unit,
4117 const char *filename,
4118 unsigned line,
4119 const char *section,
4120 unsigned section_line,
4121 const char *lvalue,
4122 int ltype,
4123 const char *rvalue,
4124 void *data,
4125 void *userdata) {
4126
4127 Unit *u = data;
4128 usec_t usec;
4129 int r;
4130
4131 assert(filename);
4132 assert(lvalue);
4133 assert(rvalue);
4134 assert(u);
4135
4136 r = parse_sec_fix_0(rvalue, &usec);
4137 if (r < 0) {
4138 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse JobTimeoutSec= parameter, ignoring: %s", rvalue);
4139 return 0;
4140 }
4141
4142 /* If the user explicitly changed JobTimeoutSec= also change JobRunningTimeoutSec=, for compatibility with old
c05f3c8f 4143 * versions. If JobRunningTimeoutSec= was explicitly set, avoid this however as whatever the user picked should
eae51da3
LP		 4144 * count. */
4145
4146 if (!u->job_running_timeout_set)
4147 u->job_running_timeout = usec;
4148
4149 u->job_timeout = usec;
4150
4151 return 0;
4152}
4153
4154int config_parse_job_running_timeout_sec(
4155 const char* unit,
4156 const char *filename,
4157 unsigned line,
4158 const char *section,
4159 unsigned section_line,
4160 const char *lvalue,
4161 int ltype,
4162 const char *rvalue,
4163 void *data,
4164 void *userdata) {
4165
4166 Unit *u = data;
4167 usec_t usec;
4168 int r;
4169
4170 assert(filename);
4171 assert(lvalue);
4172 assert(rvalue);
4173 assert(u);
4174
4175 r = parse_sec_fix_0(rvalue, &usec);
4176 if (r < 0) {
4177 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse JobRunningTimeoutSec= parameter, ignoring: %s", rvalue);
4178 return 0;
4179 }
4180
4181 u->job_running_timeout = usec;
4182 u->job_running_timeout_set = true;
4183
4184 return 0;
4185}
4186
54fcb619
ZJS		 4187int config_parse_emergency_action(
4188 const char* unit,
4189 const char *filename,
4190 unsigned line,
4191 const char *section,
4192 unsigned section_line,
4193 const char *lvalue,
4194 int ltype,
4195 const char *rvalue,
4196 void *data,
4197 void *userdata) {
4198
4199 Manager *m = NULL;
4200 EmergencyAction *x = data;
4201 int r;
4202
4203 assert(filename);
4204 assert(lvalue);
4205 assert(rvalue);
4206 assert(data);
4207
4208 if (unit)
4209 m = ((Unit*) userdata)->manager;
4210 else
4211 m = data;
4212
4213 r = parse_emergency_action(rvalue, MANAGER_IS_SYSTEM(m), x);
4214 if (r < 0) {
4215 if (r == -EOPNOTSUPP)
4216 log_syntax(unit, LOG_ERR, filename, line, r,
4217 "%s= specified as %s mode action, ignoring: %s",
4218 lvalue, MANAGER_IS_SYSTEM(m) ? "user" : "system", rvalue);
4219 else
4220 log_syntax(unit, LOG_ERR, filename, line, r,
4221 "Failed to parse %s=, ignoring: %s", lvalue, rvalue);
4222 return 0;
4223 }
4224
4225 return 0;
4226}
4227
071830ff 4228#define FOLLOW_MAX 8
87f0e418 4229
9e2f7c11 4230static int open_follow(char **filename, FILE **_f, Set *names, char **_final) {
a837f088 4231 char *id = NULL;
0301abf4 4232 unsigned c = 0;
87f0e418
LP		 4233 int fd, r;
4234 FILE *f;
87f0e418
LP		 4235
4236 assert(filename);
4237 assert(*filename);
4238 assert(_f);
4239 assert(names);
4240
0301abf4
LP		 4241 /* This will update the filename pointer if the loaded file is
4242 * reached by a symlink. The old string will be freed. */
87f0e418 4243
0301abf4 4244 for (;;) {
2c7108c4 4245 char *target, *name;
87f0e418 4246
0301abf4
LP		 4247 if (c++ >= FOLLOW_MAX)
4248 return -ELOOP;
4249
858d36c1 4250 path_simplify(*filename, false);
b08d03ff 4251
87f0e418 4252 /* Add the file name we are currently looking at to
8f05424d
LP		 4253 * the names of this unit, but only if it is a valid
4254 * unit name. */
2b6bf07d 4255 name = basename(*filename);
7410616c 4256 if (unit_name_is_valid(name, UNIT_NAME_ANY)) {
8f05424d 4257
15e11d81
LP		 4258 id = set_get(names, name);
4259 if (!id) {
4260 id = strdup(name);
4261 if (!id)
8f05424d 4262 return -ENOMEM;
87f0e418 4263
ef42202a
ZJS		 4264 r = set_consume(names, id);
4265 if (r < 0)
8f05424d 4266 return r;
87f0e418 4267 }
87f0e418
LP		 4268 }
4269
0301abf4 4270 /* Try to open the file name, but don't if its a symlink */
9946996c
LP		 4271 fd = open(*filename, O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW);
4272 if (fd >= 0)
87f0e418
LP		 4273 break;
4274
0301abf4
LP		 4275 if (errno != ELOOP)
4276 return -errno;
4277
87f0e418 4278 /* Hmm, so this is a symlink. Let's read the name, and follow it manually */
9946996c
LP		 4279 r = readlink_and_make_absolute(*filename, &target);
4280 if (r < 0)
0301abf4 4281 return r;
87f0e418 4282
17ee3d72 4283 free_and_replace(*filename, target);
87f0e418
LP		 4284 }
4285
9946996c
LP		 4286 f = fdopen(fd, "re");
4287 if (!f) {
03e334a1 4288 safe_close(fd);
d4ad27a1 4289 return -errno;
87f0e418
LP		 4290 }
4291
4292 *_f = f;
9e2f7c11 4293 *_final = id;
a837f088 4294
0301abf4 4295 return 0;
87f0e418
LP		 4296}
4297
23a177ef
LP		 4298static int merge_by_names(Unit **u, Set *names, const char *id) {
4299 char *k;
4300 int r;
4301
4302 assert(u);
4303 assert(*u);
4304 assert(names);
4305
4306 /* Let's try to add in all symlink names we found */
4307 while ((k = set_steal_first(names))) {
4308
4309 /* First try to merge in the other name into our
4310 * unit */
9946996c
LP		 4311 r = unit_merge_by_name(*u, k);
4312 if (r < 0) {
23a177ef
LP		 4313 Unit *other;
4314
4315 /* Hmm, we couldn't merge the other unit into
4316 * ours? Then let's try it the other way
4317 * round */
4318
7aad67e7
MS		 4319 /* If the symlink name we are looking at is unit template, then
4320 we must search for instance of this template */
9d3e3406 4321 if (unit_name_is_valid(k, UNIT_NAME_TEMPLATE) && (*u)->instance) {
7aad67e7
MS		 4322 _cleanup_free_ char *instance = NULL;
4323
4324 r = unit_name_replace_instance(k, (*u)->instance, &instance);
4325 if (r < 0)
4326 return r;
4327
4328 other = manager_get_unit((*u)->manager, instance);
4329 } else
4330 other = manager_get_unit((*u)->manager, k);
4331
23a177ef
LP		 4332 free(k);
4333
9946996c
LP		 4334 if (other) {
4335 r = unit_merge(other, *u);
4336 if (r >= 0) {
23a177ef
LP		 4337 *u = other;
4338 return merge_by_names(u, names, NULL);
4339 }
9946996c 4340 }
23a177ef
LP		 4341
4342 return r;
4343 }
4344
4345 if (id == k)
4346 unit_choose_id(*u, id);
4347
4348 free(k);
4349 }
4350
4351 return 0;
4352}
4353
e537352b 4354static int load_from_path(Unit *u, const char *path) {
e48614c4
ZJS		 4355 _cleanup_set_free_free_ Set *symlink_names = NULL;
4356 _cleanup_fclose_ FILE *f = NULL;
4357 _cleanup_free_ char *filename = NULL;
4358 char *id = NULL;
23a177ef 4359 Unit *merged;
45fb0699 4360 struct stat st;
a837f088 4361 int r;
23a177ef
LP		 4362
4363 assert(u);
e537352b 4364 assert(path);
3efd4195 4365
d5099efc 4366 symlink_names = set_new(&string_hash_ops);
f975e971 4367 if (!symlink_names)
87f0e418 4368 return -ENOMEM;
3efd4195 4369
036643a2
LP		 4370 if (path_is_absolute(path)) {
4371
9946996c 4372 filename = strdup(path);
e48614c4
ZJS		 4373 if (!filename)
4374 return -ENOMEM;
036643a2 4375
9946996c
LP		 4376 r = open_follow(&filename, &f, symlink_names, &id);
4377 if (r < 0) {
97b11eed 4378 filename = mfree(filename);
036643a2 4379 if (r != -ENOENT)
e48614c4 4380 return r;
036643a2
LP		 4381 }
4382
4383 } else {
4384 char **p;
4385
a3c4eb07 4386 STRV_FOREACH(p, u->manager->lookup_paths.search_path) {
036643a2
LP		 4387
4388 /* Instead of opening the path right away, we manually
4389 * follow all symlinks and add their name to our unit
4390 * name set while doing so */
9946996c 4391 filename = path_make_absolute(path, *p);
e48614c4
ZJS		 4392 if (!filename)
4393 return -ENOMEM;
036643a2 4394
ac155bb8
MS		 4395 if (u->manager->unit_path_cache &&
4396 !set_get(u->manager->unit_path_cache, filename))
fe51822e
LP		 4397 r = -ENOENT;
4398 else
4399 r = open_follow(&filename, &f, symlink_names, &id);
a837f088
LP		 4400 if (r >= 0)
4401 break;
4402 filename = mfree(filename);
a1feacf7
ZJS		 4403
4404 /* ENOENT means that the file is missing or is a dangling symlink.
4405 * ENOTDIR means that one of paths we expect to be is a directory
4406 * is not a directory, we should just ignore that.
4407 * EACCES means that the directory or file permissions are wrong.
4408 */
4409 if (r == -EACCES)
4410 log_debug_errno(r, "Cannot access \"%s\": %m", filename);
4411 else if (!IN_SET(r, -ENOENT, -ENOTDIR))
a837f088 4412 return r;
fe51822e 4413
a837f088
LP		 4414 /* Empty the symlink names for the next run */
4415 set_clear_free(symlink_names);
036643a2
LP		 4416 }
4417 }
034c6ed7 4418
e48614c4 4419 if (!filename)
8f05424d 4420 /* Hmm, no suitable file found? */
e48614c4 4421 return 0;
87f0e418 4422
8a993b61 4423 if (!unit_type_may_alias(u->type) && set_size(symlink_names) > 1) {
a837f088
LP		 4424 log_unit_warning(u, "Unit type of %s does not support alias names, refusing loading via symlink.", u->id);
4425 return -ELOOP;
4426 }
4427
23a177ef 4428 merged = u;
9946996c
LP		 4429 r = merge_by_names(&merged, symlink_names, id);
4430 if (r < 0)
e48614c4 4431 return r;
87f0e418 4432
23a177ef 4433 if (merged != u) {
ac155bb8 4434 u->load_state = UNIT_MERGED;
e48614c4 4435 return 0;
034c6ed7
LP		 4436 }
4437
e48614c4
ZJS		 4438 if (fstat(fileno(f), &st) < 0)
4439 return -errno;
45fb0699 4440
3a8db9fe 4441 if (null_or_empty(&st)) {
ac155bb8 4442 u->load_state = UNIT_MASKED;
3a8db9fe
ZJS		 4443 u->fragment_mtime = 0;
4444 } else {
c2756a68 4445 u->load_state = UNIT_LOADED;
3a8db9fe 4446 u->fragment_mtime = timespec_load(&st.st_mtim);
c2756a68 4447
00dc5d76 4448 /* Now, parse the file contents */
36f822c4
ZJS		 4449 r = config_parse(u->id, filename, f,
4450 UNIT_VTABLE(u)->sections,
4451 config_item_perf_lookup, load_fragment_gperf_lookup,
bcde742e 4452 CONFIG_PARSE_ALLOW_INCLUDE, u);
f975e971 4453 if (r < 0)
e48614c4 4454 return r;
00dc5d76 4455 }
b08d03ff 4456
1cc6c93a 4457 free_and_replace(u->fragment_path, filename);
87f0e418 4458
1b64d026
LP		 4459 if (u->source_path) {
4460 if (stat(u->source_path, &st) >= 0)
4461 u->source_mtime = timespec_load(&st.st_mtim);
4462 else
4463 u->source_mtime = 0;
4464 }
4465
e48614c4 4466 return 0;
0301abf4
LP		 4467}
4468
e537352b 4469int unit_load_fragment(Unit *u) {
23a177ef 4470 int r;
294d81f1
LP		 4471 Iterator i;
4472 const char *t;
0301abf4
LP		 4473
4474 assert(u);
ac155bb8
MS		 4475 assert(u->load_state == UNIT_STUB);
4476 assert(u->id);
23a177ef 4477
3f5e8115
LP		 4478 if (u->transient) {
4479 u->load_state = UNIT_LOADED;
4480 return 0;
4481 }
4482
294d81f1
LP		 4483 /* First, try to find the unit under its id. We always look
4484 * for unit files in the default directories, to make it easy
4485 * to override things by placing things in /etc/systemd/system */
9946996c
LP		 4486 r = load_from_path(u, u->id);
4487 if (r < 0)
294d81f1
LP		 4488 return r;
4489
4490 /* Try to find an alias we can load this with */
abc08d4d 4491 if (u->load_state == UNIT_STUB) {
ac155bb8 4492 SET_FOREACH(t, u->names, i) {
294d81f1 4493
ac155bb8 4494 if (t == u->id)
294d81f1
LP		 4495 continue;
4496
9946996c
LP		 4497 r = load_from_path(u, t);
4498 if (r < 0)
294d81f1
LP		 4499 return r;
4500
ac155bb8 4501 if (u->load_state != UNIT_STUB)
294d81f1
LP		 4502 break;
4503 }
abc08d4d 4504 }
23a177ef 4505
294d81f1 4506 /* And now, try looking for it under the suggested (originally linked) path */
ac155bb8 4507 if (u->load_state == UNIT_STUB && u->fragment_path) {
6ccb1b44 4508
9946996c
LP		 4509 r = load_from_path(u, u->fragment_path);
4510 if (r < 0)
23a177ef 4511 return r;
0301abf4 4512
ece174c5 4513 if (u->load_state == UNIT_STUB)
6ccb1b44
LP		 4514 /* Hmm, this didn't work? Then let's get rid
4515 * of the fragment path stored for us, so that
4516 * we don't point to an invalid location. */
a1e58e8e 4517 u->fragment_path = mfree(u->fragment_path);
6ccb1b44
LP		 4518 }
4519
294d81f1 4520 /* Look for a template */
ac155bb8 4521 if (u->load_state == UNIT_STUB && u->instance) {
7410616c 4522 _cleanup_free_ char *k = NULL;
294d81f1 4523
7410616c
LP		 4524 r = unit_name_template(u->id, &k);
4525 if (r < 0)
4526 return r;
294d81f1
LP		 4527
4528 r = load_from_path(u, k);
bb28e684
ZJS		 4529 if (r < 0) {
4530 if (r == -ENOEXEC)
4531 log_unit_notice(u, "Unit configuration has fatal error, unit will not be started.");
9e2f7c11 4532 return r;
bb28e684 4533 }
890f434c 4534
abc08d4d 4535 if (u->load_state == UNIT_STUB) {
ac155bb8 4536 SET_FOREACH(t, u->names, i) {
bc9fd78c 4537 _cleanup_free_ char *z = NULL;
87f0e418 4538
ac155bb8 4539 if (t == u->id)
23a177ef 4540 continue;
071830ff 4541
7410616c
LP		 4542 r = unit_name_template(t, &z);
4543 if (r < 0)
4544 return r;
294d81f1 4545
bc9fd78c 4546 r = load_from_path(u, z);
294d81f1 4547 if (r < 0)
23a177ef 4548 return r;
890f434c 4549
ac155bb8 4550 if (u->load_state != UNIT_STUB)
23a177ef
LP		 4551 break;
4552 }
abc08d4d 4553 }
071830ff
LP		 4554 }
4555
23a177ef 4556 return 0;
3efd4195 4557}
e537352b
LP		 4558
4559void unit_dump_config_items(FILE *f) {
f975e971
LP		 4560 static const struct {
4561 const ConfigParserCallback callback;
4562 const char *rvalue;
4563 } table[] = {
17df7223 4564 { config_parse_warn_compat, "NOTSUPPORTED" },
f975e971
LP		 4565 { config_parse_int, "INTEGER" },
4566 { config_parse_unsigned, "UNSIGNED" },
5556b5fe 4567 { config_parse_iec_size, "SIZE" },
59f448cf 4568 { config_parse_iec_uint64, "SIZE" },
5556b5fe 4569 { config_parse_si_size, "SIZE" },
f975e971
LP		 4570 { config_parse_bool, "BOOLEAN" },
4571 { config_parse_string, "STRING" },
4572 { config_parse_path, "PATH" },
4573 { config_parse_unit_path_printf, "PATH" },
4574 { config_parse_strv, "STRING [...]" },
4575 { config_parse_exec_nice, "NICE" },
4576 { config_parse_exec_oom_score_adjust, "OOMSCOREADJUST" },
4577 { config_parse_exec_io_class, "IOCLASS" },
4578 { config_parse_exec_io_priority, "IOPRIORITY" },
4579 { config_parse_exec_cpu_sched_policy, "CPUSCHEDPOLICY" },
4580 { config_parse_exec_cpu_sched_prio, "CPUSCHEDPRIO" },
4581 { config_parse_exec_cpu_affinity, "CPUAFFINITY" },
4582 { config_parse_mode, "MODE" },
4583 { config_parse_unit_env_file, "FILE" },
52c239d7
LB		 4584 { config_parse_exec_output, "OUTPUT" },
4585 { config_parse_exec_input, "INPUT" },
ca37242e
LP		 4586 { config_parse_log_facility, "FACILITY" },
4587 { config_parse_log_level, "LEVEL" },
f975e971 4588 { config_parse_exec_secure_bits, "SECUREBITS" },
a103496c 4589 { config_parse_capability_set, "BOUNDINGSET" },
4f424df7 4590 { config_parse_rlimit, "LIMIT" },
f975e971 4591 { config_parse_unit_deps, "UNIT [...]" },
f975e971
LP		 4592 { config_parse_exec, "PATH [ARGUMENT [...]]" },
4593 { config_parse_service_type, "SERVICETYPE" },
4594 { config_parse_service_restart, "SERVICERESTART" },
f975e971 4595 { config_parse_kill_mode, "KILLMODE" },
f757855e 4596 { config_parse_signal, "SIGNAL" },
f975e971
LP		 4597 { config_parse_socket_listen, "SOCKET [...]" },
4598 { config_parse_socket_bind, "SOCKETBIND" },
4599 { config_parse_socket_bindtodevice, "NETWORKINTERFACE" },
7f602784 4600 { config_parse_sec, "SECONDS" },
d88a251b 4601 { config_parse_nsec, "NANOSECONDS" },
94828d2d 4602 { config_parse_namespace_path_strv, "PATH [...]" },
d2d6c096 4603 { config_parse_bind_paths, "PATH[:PATH[:OPTIONS]] [...]" },
7c8fa05c 4604 { config_parse_unit_requires_mounts_for, "PATH [...]" },
f975e971
LP		 4605 { config_parse_exec_mount_flags, "MOUNTFLAG [...]" },
4606 { config_parse_unit_string_printf, "STRING" },
3ecaa09b 4607 { config_parse_trigger_unit, "UNIT" },
f975e971 4608 { config_parse_timer, "TIMER" },
f975e971 4609 { config_parse_path_spec, "PATH" },
f975e971
LP		 4610 { config_parse_notify_access, "ACCESS" },
4611 { config_parse_ip_tos, "TOS" },
4612 { config_parse_unit_condition_path, "CONDITION" },
4613 { config_parse_unit_condition_string, "CONDITION" },
4614 { config_parse_unit_condition_null, "CONDITION" },
a016b922 4615 { config_parse_unit_slice, "SLICE" },
7f0386f6
LP		 4616 { config_parse_documentation, "URL" },
4617 { config_parse_service_timeout, "SECONDS" },
87a47f99 4618 { config_parse_emergency_action, "ACTION" },
7f0386f6
LP		 4619 { config_parse_set_status, "STATUS" },
4620 { config_parse_service_sockets, "SOCKETS" },
7f0386f6 4621 { config_parse_environ, "ENVIRON" },
349cc4a5 4622#if HAVE_SECCOMP
17df7223 4623 { config_parse_syscall_filter, "SYSCALLS" },
6a6751fe 4624 { config_parse_syscall_archs, "ARCHS" },
17df7223 4625 { config_parse_syscall_errno, "ERRNO" },
4298d0b5 4626 { config_parse_address_families, "FAMILIES" },
add00535 4627 { config_parse_restrict_namespaces, "NAMESPACES" },
c0467cf3 4628#endif
7f0386f6 4629 { config_parse_cpu_shares, "SHARES" },
984faf29 4630 { config_parse_cg_weight, "WEIGHT" },
7f0386f6
LP		 4631 { config_parse_memory_limit, "LIMIT" },
4632 { config_parse_device_allow, "DEVICE" },
4633 { config_parse_device_policy, "POLICY" },
13c31542 4634 { config_parse_io_limit, "LIMIT" },
13c31542 4635 { config_parse_io_device_weight, "DEVICEWEIGHT" },
6ae4283c 4636 { config_parse_io_device_latency, "DEVICELATENCY" },
7f0386f6
LP		 4637 { config_parse_blockio_bandwidth, "BANDWIDTH" },
4638 { config_parse_blockio_weight, "WEIGHT" },
4639 { config_parse_blockio_device_weight, "DEVICEWEIGHT" },
4640 { config_parse_long, "LONG" },
4641 { config_parse_socket_service, "SERVICE" },
349cc4a5 4642#if HAVE_SELINUX
6a6751fe
LP		 4643 { config_parse_exec_selinux_context, "LABEL" },
4644#endif
4645 { config_parse_job_mode, "MODE" },
4646 { config_parse_job_mode_isolate, "BOOLEAN" },
4298d0b5 4647 { config_parse_personality, "PERSONALITY" },
f975e971
LP		 4648 };
4649
4650 const char *prev = NULL;
4651 const char *i;
4652
4653 assert(f);
e537352b 4654
f975e971
LP		 4655 NULSTR_FOREACH(i, load_fragment_gperf_nulstr) {
4656 const char *rvalue = "OTHER", *lvalue;
313b7856 4657 const ConfigPerfItem *p;
f975e971
LP		 4658 size_t prefix_len;
4659 const char *dot;
313b7856 4660 unsigned j;
f975e971
LP		 4661
4662 assert_se(p = load_fragment_gperf_lookup(i, strlen(i)));
4663
313b7856
LP		 4664 /* Hide legacy settings */
4665 if (p->parse == config_parse_warn_compat &&
4666 p->ltype == DISABLED_LEGACY)
4667 continue;
4668
4669 for (j = 0; j < ELEMENTSOF(table); j++)
4670 if (p->parse == table[j].callback) {
4671 rvalue = table[j].rvalue;
4672 break;
4673 }
4674
f975e971
LP		 4675 dot = strchr(i, '.');
4676 lvalue = dot ? dot + 1 : i;
4677 prefix_len = dot-i;
4678
4679 if (dot)
641906e9 4680 if (!prev || !strneq(prev, i, prefix_len+1)) {
f975e971
LP		 4681 if (prev)
4682 fputc('\n', f);
4683
4684 fprintf(f, "[%.*s]\n", (int) prefix_len, i);
4685 }
4686
f975e971
LP		 4687 fprintf(f, "%s=%s\n", lvalue, rvalue);
4688 prev = i;
4689 }
e537352b 4690}
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