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Merge pull request #29458 from poettering/serialize-pidref
[thirdparty/systemd.git] / src / core / load-fragment.c
1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
2 /***
3 Copyright © 2012 Holger Hans Peter Freyther
4 ***/
5
6 #include <errno.h>
7 #include <fcntl.h>
8 #include <linux/fs.h>
9 #include <linux/oom.h>
10 #include <sched.h>
11 #include <sys/resource.h>
12
13 #include "sd-messages.h"
14
15 #include "af-list.h"
16 #include "all-units.h"
17 #include "alloc-util.h"
18 #include "bpf-firewall.h"
19 #include "bpf-lsm.h"
20 #include "bpf-program.h"
21 #include "bpf-socket-bind.h"
22 #include "bus-error.h"
23 #include "bus-internal.h"
24 #include "bus-util.h"
25 #include "cap-list.h"
26 #include "capability-util.h"
27 #include "cgroup-setup.h"
28 #include "conf-parser.h"
29 #include "core-varlink.h"
30 #include "cpu-set-util.h"
31 #include "creds-util.h"
32 #include "env-util.h"
33 #include "errno-list.h"
34 #include "escape.h"
35 #include "exec-credential.h"
36 #include "execute.h"
37 #include "fd-util.h"
38 #include "fileio.h"
39 #include "firewall-util.h"
40 #include "fs-util.h"
41 #include "hexdecoct.h"
42 #include "io-util.h"
43 #include "ioprio-util.h"
44 #include "ip-protocol-list.h"
45 #include "journal-file.h"
46 #include "limits-util.h"
47 #include "load-fragment.h"
48 #include "log.h"
49 #include "missing_ioprio.h"
50 #include "mountpoint-util.h"
51 #include "nulstr-util.h"
52 #include "open-file.h"
53 #include "parse-helpers.h"
54 #include "parse-util.h"
55 #include "path-util.h"
56 #include "pcre2-util.h"
57 #include "percent-util.h"
58 #include "process-util.h"
59 #include "seccomp-util.h"
60 #include "securebits-util.h"
61 #include "selinux-util.h"
62 #include "signal-util.h"
63 #include "socket-netlink.h"
64 #include "specifier.h"
65 #include "stat-util.h"
66 #include "string-util.h"
67 #include "strv.h"
68 #include "syslog-util.h"
69 #include "time-util.h"
70 #include "unit-name.h"
71 #include "unit-printf.h"
72 #include "user-util.h"
73 #include "utf8.h"
74 #include "web-util.h"
75
76 static int parse_socket_protocol(const char *s) {
77 int r;
78
79 r = parse_ip_protocol(s);
80 if (r < 0)
81 return r;
82 if (!IN_SET(r, IPPROTO_UDPLITE, IPPROTO_SCTP))
83 return -EPROTONOSUPPORT;
84
85 return r;
86 }
87
88 int parse_crash_chvt(const char *value, int *data) {
89 int b;
90
91 if (safe_atoi(value, data) >= 0)
92 return 0;
93
94 b = parse_boolean(value);
95 if (b < 0)
96 return b;
97
98 if (b > 0)
99 *data = 0; /* switch to where kmsg goes */
100 else
101 *data = -1; /* turn off switching */
102
103 return 0;
104 }
105
106 int parse_confirm_spawn(const char *value, char **console) {
107 char *s;
108 int r;
109
110 r = value ? parse_boolean(value) : 1;
111 if (r == 0) {
112 *console = NULL;
113 return 0;
114 } else if (r > 0) /* on with default tty */
115 s = strdup("/dev/console");
116 else if (is_path(value)) /* on with fully qualified path */
117 s = strdup(value);
118 else /* on with only a tty file name, not a fully qualified path */
119 s = path_join("/dev/", value);
120 if (!s)
121 return -ENOMEM;
122
123 *console = s;
124 return 0;
125 }
126
127 DEFINE_CONFIG_PARSE(config_parse_socket_protocol, parse_socket_protocol, "Failed to parse socket protocol");
128 DEFINE_CONFIG_PARSE(config_parse_exec_secure_bits, secure_bits_from_string, "Failed to parse secure bits");
129 DEFINE_CONFIG_PARSE_ENUM(config_parse_collect_mode, collect_mode, CollectMode, "Failed to parse garbage collection mode");
130 DEFINE_CONFIG_PARSE_ENUM(config_parse_device_policy, cgroup_device_policy, CGroupDevicePolicy, "Failed to parse device policy");
131 DEFINE_CONFIG_PARSE_ENUM(config_parse_exec_keyring_mode, exec_keyring_mode, ExecKeyringMode, "Failed to parse keyring mode");
132 DEFINE_CONFIG_PARSE_ENUM(config_parse_protect_proc, protect_proc, ProtectProc, "Failed to parse /proc/ protection mode");
133 DEFINE_CONFIG_PARSE_ENUM(config_parse_proc_subset, proc_subset, ProcSubset, "Failed to parse /proc/ subset mode");
134 DEFINE_CONFIG_PARSE_ENUM(config_parse_exec_utmp_mode, exec_utmp_mode, ExecUtmpMode, "Failed to parse utmp mode");
135 DEFINE_CONFIG_PARSE_ENUM(config_parse_job_mode, job_mode, JobMode, "Failed to parse job mode");
136 DEFINE_CONFIG_PARSE_ENUM(config_parse_notify_access, notify_access, NotifyAccess, "Failed to parse notify access specifier");
137 DEFINE_CONFIG_PARSE_ENUM(config_parse_protect_home, protect_home, ProtectHome, "Failed to parse protect home value");
138 DEFINE_CONFIG_PARSE_ENUM(config_parse_protect_system, protect_system, ProtectSystem, "Failed to parse protect system value");
139 DEFINE_CONFIG_PARSE_ENUM(config_parse_exec_preserve_mode, exec_preserve_mode, ExecPreserveMode, "Failed to parse resource preserve mode");
140 DEFINE_CONFIG_PARSE_ENUM(config_parse_service_type, service_type, ServiceType, "Failed to parse service type");
141 DEFINE_CONFIG_PARSE_ENUM(config_parse_service_exit_type, service_exit_type, ServiceExitType, "Failed to parse service exit type");
142 DEFINE_CONFIG_PARSE_ENUM(config_parse_service_restart, service_restart, ServiceRestart, "Failed to parse service restart specifier");
143 DEFINE_CONFIG_PARSE_ENUM(config_parse_service_restart_mode, service_restart_mode, ServiceRestartMode, "Failed to parse service restart mode");
144 DEFINE_CONFIG_PARSE_ENUM(config_parse_service_timeout_failure_mode, service_timeout_failure_mode, ServiceTimeoutFailureMode, "Failed to parse timeout failure mode");
145 DEFINE_CONFIG_PARSE_ENUM(config_parse_socket_bind, socket_address_bind_ipv6_only_or_bool, SocketAddressBindIPv6Only, "Failed to parse bind IPv6 only value");
146 DEFINE_CONFIG_PARSE_ENUM(config_parse_oom_policy, oom_policy, OOMPolicy, "Failed to parse OOM policy");
147 DEFINE_CONFIG_PARSE_ENUM(config_parse_managed_oom_preference, managed_oom_preference, ManagedOOMPreference, "Failed to parse ManagedOOMPreference=");
148 DEFINE_CONFIG_PARSE_ENUM(config_parse_memory_pressure_watch, cgroup_pressure_watch, CGroupPressureWatch, "Failed to parse memory pressure watch setting");
149 DEFINE_CONFIG_PARSE_ENUM_WITH_DEFAULT(config_parse_ip_tos, ip_tos, int, -1, "Failed to parse IP TOS value");
150 DEFINE_CONFIG_PARSE_PTR(config_parse_blockio_weight, cg_blkio_weight_parse, uint64_t, "Invalid block IO weight");
151 DEFINE_CONFIG_PARSE_PTR(config_parse_cg_weight, cg_weight_parse, uint64_t, "Invalid weight");
152 DEFINE_CONFIG_PARSE_PTR(config_parse_cg_cpu_weight, cg_cpu_weight_parse, uint64_t, "Invalid CPU weight");
153 static DEFINE_CONFIG_PARSE_PTR(config_parse_cpu_shares_internal, cg_cpu_shares_parse, uint64_t, "Invalid CPU shares");
154 DEFINE_CONFIG_PARSE_PTR(config_parse_exec_mount_propagation_flag, mount_propagation_flag_from_string, unsigned long, "Failed to parse mount propagation flag");
155 DEFINE_CONFIG_PARSE_ENUM_WITH_DEFAULT(config_parse_numa_policy, mpol, int, -1, "Invalid NUMA policy type");
156 DEFINE_CONFIG_PARSE_ENUM(config_parse_status_unit_format, status_unit_format, StatusUnitFormat, "Failed to parse status unit format");
157 DEFINE_CONFIG_PARSE_ENUM_FULL(config_parse_socket_timestamping, socket_timestamping_from_string_harder, SocketTimestamping, "Failed to parse timestamping precision");
158
159 int config_parse_cpu_shares(
160 const char *unit,
161 const char *filename,
162 unsigned line,
163 const char *section,
164 unsigned section_line,
165 const char *lvalue,
166 int ltype,
167 const char *rvalue,
168 void *data,
169 void *userdata) {
170
171 assert(filename);
172 assert(lvalue);
173 assert(rvalue);
174
175
176 log_syntax(unit, LOG_WARNING, filename, line, 0,
177 "Unit uses %s=; please use CPUWeight= instead. Support for %s= will be removed soon.",
178 lvalue, lvalue);
179
180 return config_parse_cpu_shares_internal(unit, filename, line, section, section_line, lvalue, ltype, rvalue, data, userdata);
181 }
182
183 bool contains_instance_specifier_superset(const char *s) {
184 const char *p, *q;
185 bool percent = false;
186
187 assert(s);
188
189 p = strchr(s, '@');
190 if (!p)
191 return false;
192
193 p++; /* Skip '@' */
194
195 q = strrchr(p, '.');
196 if (!q)
197 q = p + strlen(p);
198
199 /* If the string is just the instance specifier, it's not a superset of the instance. */
200 if (memcmp_nn(p, q - p, "%i", strlen("%i")) == 0)
201 return false;
202
203 /* %i, %n and %N all expand to the instance or a superset of it. */
204 for (; p < q; p++)
205 if (*p == '%')
206 percent = !percent;
207 else if (percent) {
208 if (IN_SET(*p, 'n', 'N', 'i'))
209 return true;
210 percent = false;
211 }
212
213 return false;
214 }
215
216 /* `name` is the rendered version of `format` via `unit_printf` or similar functions. */
217 int unit_is_likely_recursive_template_dependency(Unit *u, const char *name, const char *format) {
218 const char *fragment_path;
219 int r;
220
221 assert(u);
222 assert(name);
223
224 /* If a template unit has a direct dependency on itself that includes the unit instance as part of
225 * the template instance via a unit specifier (%i, %n or %N), this will almost certainly lead to
226 * infinite recursion as systemd will keep instantiating new instances of the template unit.
227 * https://github.com/systemd/systemd/issues/17602 shows a good example of how this can happen in
228 * practice. To guard against this, we check for templates that depend on themselves and have the
229 * instantiated unit instance included as part of the template instance of the dependency via a
230 * specifier.
231 *
232 * For example, if systemd-notify@.service depends on systemd-notify@%n.service, this will result in
233 * infinite recursion.
234 */
235
236 if (!unit_name_is_valid(name, UNIT_NAME_INSTANCE))
237 return false;
238
239 if (!unit_name_prefix_equal(u->id, name))
240 return false;
241
242 if (u->type != unit_name_to_type(name))
243 return false;
244
245 r = unit_file_find_fragment(u->manager->unit_id_map, u->manager->unit_name_map, name, &fragment_path, NULL);
246 if (r < 0)
247 return r;
248
249 /* Fragment paths should also be equal as a custom fragment for a specific template instance
250 * wouldn't necessarily lead to infinite recursion. */
251 if (!path_equal_ptr(u->fragment_path, fragment_path))
252 return false;
253
254 if (!contains_instance_specifier_superset(format))
255 return false;
256
257 return true;
258 }
259
260 int config_parse_unit_deps(
261 const char *unit,
262 const char *filename,
263 unsigned line,
264 const char *section,
265 unsigned section_line,
266 const char *lvalue,
267 int ltype,
268 const char *rvalue,
269 void *data,
270 void *userdata) {
271
272 UnitDependency d = ltype;
273 Unit *u = userdata;
274
275 assert(filename);
276 assert(lvalue);
277 assert(rvalue);
278
279 for (const char *p = rvalue;;) {
280 _cleanup_free_ char *word = NULL, *k = NULL;
281 int r;
282
283 r = extract_first_word(&p, &word, NULL, EXTRACT_RETAIN_ESCAPE);
284 if (r == 0)
285 return 0;
286 if (r == -ENOMEM)
287 return log_oom();
288 if (r < 0) {
289 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid syntax, ignoring: %s", rvalue);
290 return 0;
291 }
292
293 r = unit_name_printf(u, word, &k);
294 if (r < 0) {
295 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", word);
296 continue;
297 }
298
299 r = unit_is_likely_recursive_template_dependency(u, k, word);
300 if (r < 0) {
301 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to determine if '%s' is a recursive dependency, ignoring: %m", k);
302 continue;
303 }
304 if (r > 0) {
305 log_syntax(unit, LOG_DEBUG, filename, line, 0,
306 "Dropping dependency %s=%s that likely leads to infinite recursion.",
307 unit_dependency_to_string(d), word);
308 continue;
309 }
310
311 r = unit_add_dependency_by_name(u, d, k, true, UNIT_DEPENDENCY_FILE);
312 if (r < 0)
313 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to add dependency on %s, ignoring: %m", k);
314 }
315 }
316
317 int config_parse_obsolete_unit_deps(
318 const char *unit,
319 const char *filename,
320 unsigned line,
321 const char *section,
322 unsigned section_line,
323 const char *lvalue,
324 int ltype,
325 const char *rvalue,
326 void *data,
327 void *userdata) {
328
329 log_syntax(unit, LOG_WARNING, filename, line, 0,
330 "Unit dependency type %s= is obsolete, replacing by %s=, please update your unit file", lvalue, unit_dependency_to_string(ltype));
331
332 return config_parse_unit_deps(unit, filename, line, section, section_line, lvalue, ltype, rvalue, data, userdata);
333 }
334
335 int config_parse_unit_string_printf(
336 const char *unit,
337 const char *filename,
338 unsigned line,
339 const char *section,
340 unsigned section_line,
341 const char *lvalue,
342 int ltype,
343 const char *rvalue,
344 void *data,
345 void *userdata) {
346
347 _cleanup_free_ char *k = NULL;
348 const Unit *u = ASSERT_PTR(userdata);
349 int r;
350
351 assert(filename);
352 assert(lvalue);
353 assert(rvalue);
354
355 r = unit_full_printf(u, rvalue, &k);
356 if (r < 0) {
357 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue);
358 return 0;
359 }
360
361 return config_parse_string(unit, filename, line, section, section_line, lvalue, ltype, k, data, userdata);
362 }
363
364 int config_parse_unit_strv_printf(
365 const char *unit,
366 const char *filename,
367 unsigned line,
368 const char *section,
369 unsigned section_line,
370 const char *lvalue,
371 int ltype,
372 const char *rvalue,
373 void *data,
374 void *userdata) {
375
376 const Unit *u = ASSERT_PTR(userdata);
377 _cleanup_free_ char *k = NULL;
378 int r;
379
380 assert(filename);
381 assert(lvalue);
382 assert(rvalue);
383
384 r = unit_full_printf(u, rvalue, &k);
385 if (r < 0) {
386 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue);
387 return 0;
388 }
389
390 return config_parse_strv(unit, filename, line, section, section_line, lvalue, ltype, k, data, userdata);
391 }
392
393 int config_parse_unit_path_printf(
394 const char *unit,
395 const char *filename,
396 unsigned line,
397 const char *section,
398 unsigned section_line,
399 const char *lvalue,
400 int ltype,
401 const char *rvalue,
402 void *data,
403 void *userdata) {
404
405 _cleanup_free_ char *k = NULL;
406 const Unit *u = ASSERT_PTR(userdata);
407 int r;
408 bool fatal = ltype;
409
410 assert(filename);
411 assert(lvalue);
412 assert(rvalue);
413
414 r = unit_path_printf(u, rvalue, &k);
415 if (r < 0) {
416 log_syntax(unit, fatal ? LOG_ERR : LOG_WARNING, filename, line, r,
417 "Failed to resolve unit specifiers in '%s'%s: %m",
418 rvalue, fatal ? "" : ", ignoring");
419 return fatal ? -ENOEXEC : 0;
420 }
421
422 return config_parse_path(unit, filename, line, section, section_line, lvalue, ltype, k, data, userdata);
423 }
424
425 int config_parse_colon_separated_paths(
426 const char *unit,
427 const char *filename,
428 unsigned line,
429 const char *section,
430 unsigned section_line,
431 const char *lvalue,
432 int ltype,
433 const char *rvalue,
434 void *data,
435 void *userdata) {
436 char ***sv = ASSERT_PTR(data);
437 const Unit *u = userdata;
438 int r;
439
440 assert(filename);
441 assert(lvalue);
442 assert(rvalue);
443
444 if (isempty(rvalue)) {
445 /* Empty assignment resets the list */
446 *sv = strv_free(*sv);
447 return 0;
448 }
449
450 for (const char *p = rvalue;;) {
451 _cleanup_free_ char *word = NULL, *k = NULL;
452
453 r = extract_first_word(&p, &word, ":", EXTRACT_DONT_COALESCE_SEPARATORS);
454 if (r == -ENOMEM)
455 return log_oom();
456 if (r < 0) {
457 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to extract first word, ignoring: %s", rvalue);
458 return 0;
459 }
460 if (r == 0)
461 break;
462
463 r = unit_path_printf(u, word, &k);
464 if (r < 0) {
465 log_syntax(unit, LOG_WARNING, filename, line, r,
466 "Failed to resolve unit specifiers in '%s', ignoring: %m", word);
467 return 0;
468 }
469
470 r = path_simplify_and_warn(k, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
471 if (r < 0)
472 return 0;
473
474 r = strv_consume(sv, TAKE_PTR(k));
475 if (r < 0)
476 return log_oom();
477 }
478
479 return 0;
480 }
481
482 int config_parse_unit_path_strv_printf(
483 const char *unit,
484 const char *filename,
485 unsigned line,
486 const char *section,
487 unsigned section_line,
488 const char *lvalue,
489 int ltype,
490 const char *rvalue,
491 void *data,
492 void *userdata) {
493
494 char ***x = data;
495 const Unit *u = ASSERT_PTR(userdata);
496 int r;
497
498 assert(filename);
499 assert(lvalue);
500 assert(rvalue);
501
502 if (isempty(rvalue)) {
503 *x = strv_free(*x);
504 return 0;
505 }
506
507 for (const char *p = rvalue;;) {
508 _cleanup_free_ char *word = NULL, *k = NULL;
509
510 r = extract_first_word(&p, &word, NULL, EXTRACT_UNQUOTE);
511 if (r == 0)
512 return 0;
513 if (r == -ENOMEM)
514 return log_oom();
515 if (r < 0) {
516 log_syntax(unit, LOG_WARNING, filename, line, r,
517 "Invalid syntax, ignoring: %s", rvalue);
518 return 0;
519 }
520
521 r = unit_path_printf(u, word, &k);
522 if (r < 0) {
523 log_syntax(unit, LOG_WARNING, filename, line, r,
524 "Failed to resolve unit specifiers in '%s', ignoring: %m", word);
525 return 0;
526 }
527
528 r = path_simplify_and_warn(k, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
529 if (r < 0)
530 return 0;
531
532 r = strv_consume(x, TAKE_PTR(k));
533 if (r < 0)
534 return log_oom();
535 }
536 }
537
538 static int patch_var_run(
539 const char *unit,
540 const char *filename,
541 unsigned line,
542 const char *lvalue,
543 char **path) {
544
545 const char *e;
546 char *z;
547
548 e = path_startswith(*path, "/var/run/");
549 if (!e)
550 return 0;
551
552 z = path_join("/run/", e);
553 if (!z)
554 return log_oom();
555
556 log_syntax(unit, LOG_NOTICE, filename, line, 0,
557 "%s= references a path below legacy directory /var/run/, updating %s → %s; "
558 "please update the unit file accordingly.", lvalue, *path, z);
559
560 free_and_replace(*path, z);
561
562 return 1;
563 }
564
565 int config_parse_socket_listen(
566 const char *unit,
567 const char *filename,
568 unsigned line,
569 const char *section,
570 unsigned section_line,
571 const char *lvalue,
572 int ltype,
573 const char *rvalue,
574 void *data,
575 void *userdata) {
576
577 _cleanup_free_ SocketPort *p = NULL;
578 SocketPort *tail;
579 Socket *s;
580 int r;
581
582 assert(filename);
583 assert(lvalue);
584 assert(rvalue);
585 assert(data);
586
587 s = SOCKET(data);
588
589 if (isempty(rvalue)) {
590 /* An empty assignment removes all ports */
591 socket_free_ports(s);
592 return 0;
593 }
594
595 p = new0(SocketPort, 1);
596 if (!p)
597 return log_oom();
598
599 if (ltype != SOCKET_SOCKET) {
600 _cleanup_free_ char *k = NULL;
601
602 r = unit_path_printf(UNIT(s), rvalue, &k);
603 if (r < 0) {
604 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue);
605 return 0;
606 }
607
608 r = path_simplify_and_warn(k, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
609 if (r < 0)
610 return 0;
611
612 if (ltype == SOCKET_FIFO) {
613 r = patch_var_run(unit, filename, line, lvalue, &k);
614 if (r < 0)
615 return r;
616 }
617
618 free_and_replace(p->path, k);
619 p->type = ltype;
620
621 } else if (streq(lvalue, "ListenNetlink")) {
622 _cleanup_free_ char *k = NULL;
623
624 r = unit_path_printf(UNIT(s), rvalue, &k);
625 if (r < 0) {
626 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue);
627 return 0;
628 }
629
630 r = socket_address_parse_netlink(&p->address, k);
631 if (r < 0) {
632 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse address value in '%s', ignoring: %m", k);
633 return 0;
634 }
635
636 p->type = SOCKET_SOCKET;
637
638 } else {
639 _cleanup_free_ char *k = NULL;
640
641 r = unit_path_printf(UNIT(s), rvalue, &k);
642 if (r < 0) {
643 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue);
644 return 0;
645 }
646
647 if (k[0] == '/') { /* Only for AF_UNIX file system sockets… */
648 r = patch_var_run(unit, filename, line, lvalue, &k);
649 if (r < 0)
650 return r;
651 }
652
653 r = socket_address_parse_and_warn(&p->address, k);
654 if (r < 0) {
655 if (r != -EAFNOSUPPORT)
656 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse address value in '%s', ignoring: %m", k);
657 return 0;
658 }
659
660 if (streq(lvalue, "ListenStream"))
661 p->address.type = SOCK_STREAM;
662 else if (streq(lvalue, "ListenDatagram"))
663 p->address.type = SOCK_DGRAM;
664 else {
665 assert(streq(lvalue, "ListenSequentialPacket"));
666 p->address.type = SOCK_SEQPACKET;
667 }
668
669 if (socket_address_family(&p->address) != AF_UNIX && p->address.type == SOCK_SEQPACKET) {
670 log_syntax(unit, LOG_WARNING, filename, line, 0, "Address family not supported, ignoring: %s", rvalue);
671 return 0;
672 }
673
674 p->type = SOCKET_SOCKET;
675 }
676
677 p->fd = -EBADF;
678 p->auxiliary_fds = NULL;
679 p->n_auxiliary_fds = 0;
680 p->socket = s;
681
682 tail = LIST_FIND_TAIL(port, s->ports);
683 LIST_INSERT_AFTER(port, s->ports, tail, p);
684
685 p = NULL;
686
687 return 0;
688 }
689
690 int config_parse_exec_nice(
691 const char *unit,
692 const char *filename,
693 unsigned line,
694 const char *section,
695 unsigned section_line,
696 const char *lvalue,
697 int ltype,
698 const char *rvalue,
699 void *data,
700 void *userdata) {
701
702 ExecContext *c = ASSERT_PTR(data);
703 int priority, r;
704
705 assert(filename);
706 assert(lvalue);
707 assert(rvalue);
708
709 if (isempty(rvalue)) {
710 c->nice_set = false;
711 return 0;
712 }
713
714 r = parse_nice(rvalue, &priority);
715 if (r < 0) {
716 if (r == -ERANGE)
717 log_syntax(unit, LOG_WARNING, filename, line, r, "Nice priority out of range, ignoring: %s", rvalue);
718 else
719 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse nice priority '%s', ignoring: %m", rvalue);
720 return 0;
721 }
722
723 c->nice = priority;
724 c->nice_set = true;
725
726 return 0;
727 }
728
729 int config_parse_exec_oom_score_adjust(
730 const char* unit,
731 const char *filename,
732 unsigned line,
733 const char *section,
734 unsigned section_line,
735 const char *lvalue,
736 int ltype,
737 const char *rvalue,
738 void *data,
739 void *userdata) {
740
741 ExecContext *c = ASSERT_PTR(data);
742 int oa, r;
743
744 assert(filename);
745 assert(lvalue);
746 assert(rvalue);
747
748 if (isempty(rvalue)) {
749 c->oom_score_adjust_set = false;
750 return 0;
751 }
752
753 r = parse_oom_score_adjust(rvalue, &oa);
754 if (r < 0) {
755 if (r == -ERANGE)
756 log_syntax(unit, LOG_WARNING, filename, line, r, "OOM score adjust value out of range, ignoring: %s", rvalue);
757 else
758 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse the OOM score adjust value '%s', ignoring: %m", rvalue);
759 return 0;
760 }
761
762 c->oom_score_adjust = oa;
763 c->oom_score_adjust_set = true;
764
765 return 0;
766 }
767
768 int config_parse_exec_coredump_filter(
769 const char* unit,
770 const char *filename,
771 unsigned line,
772 const char *section,
773 unsigned section_line,
774 const char *lvalue,
775 int ltype,
776 const char *rvalue,
777 void *data,
778 void *userdata) {
779
780 ExecContext *c = ASSERT_PTR(data);
781 int r;
782
783 assert(filename);
784 assert(lvalue);
785 assert(rvalue);
786
787 if (isempty(rvalue)) {
788 c->coredump_filter = 0;
789 c->coredump_filter_set = false;
790 return 0;
791 }
792
793 uint64_t f;
794 r = coredump_filter_mask_from_string(rvalue, &f);
795 if (r < 0) {
796 log_syntax(unit, LOG_WARNING, filename, line, r,
797 "Failed to parse the CoredumpFilter=%s, ignoring: %m", rvalue);
798 return 0;
799 }
800
801 c->coredump_filter |= f;
802 c->coredump_filter_set = true;
803 return 0;
804 }
805
806 int config_parse_kill_mode(
807 const char* unit,
808 const char *filename,
809 unsigned line,
810 const char *section,
811 unsigned section_line,
812 const char *lvalue,
813 int ltype,
814 const char *rvalue,
815 void *data,
816 void *userdata) {
817
818 KillMode *k = data, m;
819
820 assert(filename);
821 assert(lvalue);
822 assert(rvalue);
823 assert(data);
824
825 if (isempty(rvalue)) {
826 *k = KILL_CONTROL_GROUP;
827 return 0;
828 }
829
830 m = kill_mode_from_string(rvalue);
831 if (m < 0) {
832 log_syntax(unit, LOG_WARNING, filename, line, m,
833 "Failed to parse kill mode specification, ignoring: %s", rvalue);
834 return 0;
835 }
836
837 if (m == KILL_NONE)
838 log_syntax(unit, LOG_WARNING, filename, line, 0,
839 "Unit uses KillMode=none. "
840 "This is unsafe, as it disables systemd's process lifecycle management for the service. "
841 "Please update the service to use a safer KillMode=, such as 'mixed' or 'control-group'. "
842 "Support for KillMode=none is deprecated and will eventually be removed.");
843
844 *k = m;
845 return 0;
846 }
847
848 int config_parse_exec(
849 const char *unit,
850 const char *filename,
851 unsigned line,
852 const char *section,
853 unsigned section_line,
854 const char *lvalue,
855 int ltype,
856 const char *rvalue,
857 void *data,
858 void *userdata) {
859
860 ExecCommand **e = ASSERT_PTR(data);
861 const Unit *u = userdata;
862 const char *p;
863 bool semicolon;
864 int r;
865
866 assert(filename);
867 assert(lvalue);
868 assert(rvalue);
869
870 e += ltype;
871
872 if (isempty(rvalue)) {
873 /* An empty assignment resets the list */
874 *e = exec_command_free_list(*e);
875 return 0;
876 }
877
878 p = rvalue;
879 do {
880 _cleanup_free_ char *path = NULL, *firstword = NULL;
881 ExecCommandFlags flags = 0;
882 bool ignore = false, separate_argv0 = false;
883 _cleanup_free_ ExecCommand *nce = NULL;
884 _cleanup_strv_free_ char **n = NULL;
885 size_t nlen = 0;
886 const char *f;
887
888 semicolon = false;
889
890 r = extract_first_word_and_warn(&p, &firstword, NULL, EXTRACT_UNQUOTE|EXTRACT_CUNESCAPE, unit, filename, line, rvalue);
891 if (r <= 0)
892 return 0;
893
894 /* A lone ";" is a separator. Let's make sure we don't treat it as an executable name. */
895 if (streq(firstword, ";")) {
896 semicolon = true;
897 continue;
898 }
899
900 f = firstword;
901 for (;;) {
902 /* We accept an absolute path as first argument. If it's prefixed with - and the path doesn't
903 * exist, we ignore it instead of erroring out; if it's prefixed with @, we allow overriding of
904 * argv[0]; if it's prefixed with :, we will not do environment variable substitution;
905 * if it's prefixed with +, it will be run with full privileges and no sandboxing; if
906 * it's prefixed with '!' we apply sandboxing, but do not change user/group credentials; if
907 * it's prefixed with '!!', then we apply user/group credentials if the kernel supports ambient
908 * capabilities -- if it doesn't we don't apply the credentials themselves, but do apply most
909 * other sandboxing, with some special exceptions for changing UID.
910 *
911 * The idea is that '!!' may be used to write services that can take benefit of systemd's
912 * UID/GID dropping if the kernel supports ambient creds, but provide an automatic fallback to
913 * privilege dropping within the daemon if the kernel does not offer that. */
914
915 if (*f == '-' && !(flags & EXEC_COMMAND_IGNORE_FAILURE)) {
916 flags |= EXEC_COMMAND_IGNORE_FAILURE;
917 ignore = true;
918 } else if (*f == '@' && !separate_argv0)
919 separate_argv0 = true;
920 else if (*f == ':' && !(flags & EXEC_COMMAND_NO_ENV_EXPAND))
921 flags |= EXEC_COMMAND_NO_ENV_EXPAND;
922 else if (*f == '+' && !(flags & (EXEC_COMMAND_FULLY_PRIVILEGED|EXEC_COMMAND_NO_SETUID|EXEC_COMMAND_AMBIENT_MAGIC)))
923 flags |= EXEC_COMMAND_FULLY_PRIVILEGED;
924 else if (*f == '!' && !(flags & (EXEC_COMMAND_FULLY_PRIVILEGED|EXEC_COMMAND_NO_SETUID|EXEC_COMMAND_AMBIENT_MAGIC)))
925 flags |= EXEC_COMMAND_NO_SETUID;
926 else if (*f == '!' && !(flags & (EXEC_COMMAND_FULLY_PRIVILEGED|EXEC_COMMAND_AMBIENT_MAGIC))) {
927 flags &= ~EXEC_COMMAND_NO_SETUID;
928 flags |= EXEC_COMMAND_AMBIENT_MAGIC;
929 } else
930 break;
931 f++;
932 }
933
934 r = unit_path_printf(u, f, &path);
935 if (r < 0) {
936 log_syntax(unit, ignore ? LOG_WARNING : LOG_ERR, filename, line, r,
937 "Failed to resolve unit specifiers in '%s'%s: %m",
938 f, ignore ? ", ignoring" : "");
939 return ignore ? 0 : -ENOEXEC;
940 }
941
942 if (isempty(path)) {
943 /* First word is either "-" or "@" with no command. */
944 log_syntax(unit, ignore ? LOG_WARNING : LOG_ERR, filename, line, 0,
945 "Empty path in command line%s: '%s'",
946 ignore ? ", ignoring" : "", rvalue);
947 return ignore ? 0 : -ENOEXEC;
948 }
949 if (!string_is_safe(path)) {
950 log_syntax(unit, ignore ? LOG_WARNING : LOG_ERR, filename, line, 0,
951 "Executable name contains special characters%s: %s",
952 ignore ? ", ignoring" : "", path);
953 return ignore ? 0 : -ENOEXEC;
954 }
955 if (endswith(path, "/")) {
956 log_syntax(unit, ignore ? LOG_WARNING : LOG_ERR, filename, line, 0,
957 "Executable path specifies a directory%s: %s",
958 ignore ? ", ignoring" : "", path);
959 return ignore ? 0 : -ENOEXEC;
960 }
961
962 if (!(path_is_absolute(path) ? path_is_valid(path) : filename_is_valid(path))) {
963 log_syntax(unit, ignore ? LOG_WARNING : LOG_ERR, filename, line, 0,
964 "Neither a valid executable name nor an absolute path%s: %s",
965 ignore ? ", ignoring" : "", path);
966 return ignore ? 0 : -ENOEXEC;
967 }
968
969 if (!separate_argv0) {
970 char *w = NULL;
971
972 if (!GREEDY_REALLOC0(n, nlen + 2))
973 return log_oom();
974
975 w = strdup(path);
976 if (!w)
977 return log_oom();
978 n[nlen++] = w;
979 n[nlen] = NULL;
980 }
981
982 path_simplify(path);
983
984 while (!isempty(p)) {
985 _cleanup_free_ char *word = NULL, *resolved = NULL;
986
987 /* Check explicitly for an unquoted semicolon as
988 * command separator token. */
989 if (p[0] == ';' && (!p[1] || strchr(WHITESPACE, p[1]))) {
990 p++;
991 p += strspn(p, WHITESPACE);
992 semicolon = true;
993 break;
994 }
995
996 /* Check for \; explicitly, to not confuse it with \\; or "\;" or "\\;" etc.
997 * extract_first_word() would return the same for all of those. */
998 if (p[0] == '\\' && p[1] == ';' && (!p[2] || strchr(WHITESPACE, p[2]))) {
999 char *w;
1000
1001 p += 2;
1002 p += strspn(p, WHITESPACE);
1003
1004 if (!GREEDY_REALLOC0(n, nlen + 2))
1005 return log_oom();
1006
1007 w = strdup(";");
1008 if (!w)
1009 return log_oom();
1010 n[nlen++] = w;
1011 n[nlen] = NULL;
1012 continue;
1013 }
1014
1015 r = extract_first_word_and_warn(&p, &word, NULL, EXTRACT_UNQUOTE|EXTRACT_CUNESCAPE, unit, filename, line, rvalue);
1016 if (r == 0)
1017 break;
1018 if (r < 0)
1019 return ignore ? 0 : -ENOEXEC;
1020
1021 r = unit_full_printf(u, word, &resolved);
1022 if (r < 0) {
1023 log_syntax(unit, ignore ? LOG_WARNING : LOG_ERR, filename, line, r,
1024 "Failed to resolve unit specifiers in %s%s: %m",
1025 word, ignore ? ", ignoring" : "");
1026 return ignore ? 0 : -ENOEXEC;
1027 }
1028
1029 if (!GREEDY_REALLOC(n, nlen + 2))
1030 return log_oom();
1031
1032 n[nlen++] = TAKE_PTR(resolved);
1033 n[nlen] = NULL;
1034 }
1035
1036 if (!n || !n[0]) {
1037 log_syntax(unit, ignore ? LOG_WARNING : LOG_ERR, filename, line, 0,
1038 "Empty executable name or zeroeth argument%s: %s",
1039 ignore ? ", ignoring" : "", rvalue);
1040 return ignore ? 0 : -ENOEXEC;
1041 }
1042
1043 nce = new0(ExecCommand, 1);
1044 if (!nce)
1045 return log_oom();
1046
1047 nce->argv = TAKE_PTR(n);
1048 nce->path = TAKE_PTR(path);
1049 nce->flags = flags;
1050
1051 exec_command_append_list(e, nce);
1052
1053 /* Do not _cleanup_free_ these. */
1054 nce = NULL;
1055
1056 rvalue = p;
1057 } while (semicolon);
1058
1059 return 0;
1060 }
1061
1062 int config_parse_socket_bindtodevice(
1063 const char* unit,
1064 const char *filename,
1065 unsigned line,
1066 const char *section,
1067 unsigned section_line,
1068 const char *lvalue,
1069 int ltype,
1070 const char *rvalue,
1071 void *data,
1072 void *userdata) {
1073
1074 Socket *s = ASSERT_PTR(data);
1075
1076 assert(filename);
1077 assert(lvalue);
1078 assert(rvalue);
1079
1080 if (isempty(rvalue) || streq(rvalue, "*")) {
1081 s->bind_to_device = mfree(s->bind_to_device);
1082 return 0;
1083 }
1084
1085 if (!ifname_valid(rvalue)) {
1086 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid interface name, ignoring: %s", rvalue);
1087 return 0;
1088 }
1089
1090 return free_and_strdup_warn(&s->bind_to_device, rvalue);
1091 }
1092
1093 int config_parse_exec_input(
1094 const char *unit,
1095 const char *filename,
1096 unsigned line,
1097 const char *section,
1098 unsigned section_line,
1099 const char *lvalue,
1100 int ltype,
1101 const char *rvalue,
1102 void *data,
1103 void *userdata) {
1104
1105 ExecContext *c = ASSERT_PTR(data);
1106 const Unit *u = userdata;
1107 const char *n;
1108 ExecInput ei;
1109 int r;
1110
1111 assert(filename);
1112 assert(line);
1113 assert(rvalue);
1114
1115 n = startswith(rvalue, "fd:");
1116 if (n) {
1117 _cleanup_free_ char *resolved = NULL;
1118
1119 r = unit_fd_printf(u, n, &resolved);
1120 if (r < 0) {
1121 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", n);
1122 return 0;
1123 }
1124
1125 if (isempty(resolved))
1126 resolved = mfree(resolved);
1127 else if (!fdname_is_valid(resolved)) {
1128 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid file descriptor name, ignoring: %s", resolved);
1129 return 0;
1130 }
1131
1132 free_and_replace(c->stdio_fdname[STDIN_FILENO], resolved);
1133
1134 ei = EXEC_INPUT_NAMED_FD;
1135
1136 } else if ((n = startswith(rvalue, "file:"))) {
1137 _cleanup_free_ char *resolved = NULL;
1138
1139 r = unit_path_printf(u, n, &resolved);
1140 if (r < 0) {
1141 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", n);
1142 return 0;
1143 }
1144
1145 r = path_simplify_and_warn(resolved, PATH_CHECK_ABSOLUTE | PATH_CHECK_FATAL, unit, filename, line, lvalue);
1146 if (r < 0)
1147 return 0;
1148
1149 free_and_replace(c->stdio_file[STDIN_FILENO], resolved);
1150
1151 ei = EXEC_INPUT_FILE;
1152
1153 } else {
1154 ei = exec_input_from_string(rvalue);
1155 if (ei < 0) {
1156 log_syntax(unit, LOG_WARNING, filename, line, ei, "Failed to parse input specifier, ignoring: %s", rvalue);
1157 return 0;
1158 }
1159 }
1160
1161 c->std_input = ei;
1162 return 0;
1163 }
1164
1165 int config_parse_exec_input_text(
1166 const char *unit,
1167 const char *filename,
1168 unsigned line,
1169 const char *section,
1170 unsigned section_line,
1171 const char *lvalue,
1172 int ltype,
1173 const char *rvalue,
1174 void *data,
1175 void *userdata) {
1176
1177 _cleanup_free_ char *unescaped = NULL, *resolved = NULL;
1178 ExecContext *c = ASSERT_PTR(data);
1179 const Unit *u = userdata;
1180 int r;
1181
1182 assert(filename);
1183 assert(line);
1184 assert(rvalue);
1185
1186 if (isempty(rvalue)) {
1187 /* Reset if the empty string is assigned */
1188 c->stdin_data = mfree(c->stdin_data);
1189 c->stdin_data_size = 0;
1190 return 0;
1191 }
1192
1193 ssize_t l = cunescape(rvalue, 0, &unescaped);
1194 if (l < 0) {
1195 log_syntax(unit, LOG_WARNING, filename, line, l,
1196 "Failed to decode C escaped text '%s', ignoring: %m", rvalue);
1197 return 0;
1198 }
1199
1200 r = unit_full_printf_full(u, unescaped, EXEC_STDIN_DATA_MAX, &resolved);
1201 if (r < 0) {
1202 log_syntax(unit, LOG_WARNING, filename, line, r,
1203 "Failed to resolve unit specifiers in '%s', ignoring: %m", unescaped);
1204 return 0;
1205 }
1206
1207 size_t sz = strlen(resolved);
1208 if (c->stdin_data_size + sz + 1 < c->stdin_data_size || /* check for overflow */
1209 c->stdin_data_size + sz + 1 > EXEC_STDIN_DATA_MAX) {
1210 log_syntax(unit, LOG_WARNING, filename, line, 0,
1211 "Standard input data too large (%zu), maximum of %zu permitted, ignoring.",
1212 c->stdin_data_size + sz, (size_t) EXEC_STDIN_DATA_MAX);
1213 return 0;
1214 }
1215
1216 void *p = realloc(c->stdin_data, c->stdin_data_size + sz + 1);
1217 if (!p)
1218 return log_oom();
1219
1220 *((char*) mempcpy((char*) p + c->stdin_data_size, resolved, sz)) = '\n';
1221
1222 c->stdin_data = p;
1223 c->stdin_data_size += sz + 1;
1224
1225 return 0;
1226 }
1227
1228 int config_parse_exec_input_data(
1229 const char *unit,
1230 const char *filename,
1231 unsigned line,
1232 const char *section,
1233 unsigned section_line,
1234 const char *lvalue,
1235 int ltype,
1236 const char *rvalue,
1237 void *data,
1238 void *userdata) {
1239
1240 _cleanup_free_ void *p = NULL;
1241 ExecContext *c = ASSERT_PTR(data);
1242 size_t sz;
1243 void *q;
1244 int r;
1245
1246 assert(filename);
1247 assert(line);
1248 assert(rvalue);
1249
1250 if (isempty(rvalue)) {
1251 /* Reset if the empty string is assigned */
1252 c->stdin_data = mfree(c->stdin_data);
1253 c->stdin_data_size = 0;
1254 return 0;
1255 }
1256
1257 r = unbase64mem(rvalue, SIZE_MAX, &p, &sz);
1258 if (r < 0) {
1259 log_syntax(unit, LOG_WARNING, filename, line, r,
1260 "Failed to decode base64 data, ignoring: %s", rvalue);
1261 return 0;
1262 }
1263
1264 assert(sz > 0);
1265
1266 if (c->stdin_data_size + sz < c->stdin_data_size || /* check for overflow */
1267 c->stdin_data_size + sz > EXEC_STDIN_DATA_MAX) {
1268 log_syntax(unit, LOG_WARNING, filename, line, 0,
1269 "Standard input data too large (%zu), maximum of %zu permitted, ignoring.",
1270 c->stdin_data_size + sz, (size_t) EXEC_STDIN_DATA_MAX);
1271 return 0;
1272 }
1273
1274 q = realloc(c->stdin_data, c->stdin_data_size + sz);
1275 if (!q)
1276 return log_oom();
1277
1278 memcpy((uint8_t*) q + c->stdin_data_size, p, sz);
1279
1280 c->stdin_data = q;
1281 c->stdin_data_size += sz;
1282
1283 return 0;
1284 }
1285
1286 int config_parse_exec_output(
1287 const char *unit,
1288 const char *filename,
1289 unsigned line,
1290 const char *section,
1291 unsigned section_line,
1292 const char *lvalue,
1293 int ltype,
1294 const char *rvalue,
1295 void *data,
1296 void *userdata) {
1297
1298 _cleanup_free_ char *resolved = NULL;
1299 const char *n;
1300 ExecContext *c = ASSERT_PTR(data);
1301 const Unit *u = userdata;
1302 bool obsolete = false;
1303 ExecOutput eo;
1304 int r;
1305
1306 assert(filename);
1307 assert(line);
1308 assert(lvalue);
1309 assert(rvalue);
1310
1311 n = startswith(rvalue, "fd:");
1312 if (n) {
1313 r = unit_fd_printf(u, n, &resolved);
1314 if (r < 0) {
1315 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s: %m", n);
1316 return 0;
1317 }
1318
1319 if (isempty(resolved))
1320 resolved = mfree(resolved);
1321 else if (!fdname_is_valid(resolved)) {
1322 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid file descriptor name, ignoring: %s", resolved);
1323 return 0;
1324 }
1325
1326 eo = EXEC_OUTPUT_NAMED_FD;
1327
1328 } else if (streq(rvalue, "syslog")) {
1329 eo = EXEC_OUTPUT_JOURNAL;
1330 obsolete = true;
1331
1332 } else if (streq(rvalue, "syslog+console")) {
1333 eo = EXEC_OUTPUT_JOURNAL_AND_CONSOLE;
1334 obsolete = true;
1335
1336 } else if ((n = startswith(rvalue, "file:"))) {
1337
1338 r = unit_path_printf(u, n, &resolved);
1339 if (r < 0) {
1340 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", n);
1341 return 0;
1342 }
1343
1344 r = path_simplify_and_warn(resolved, PATH_CHECK_ABSOLUTE | PATH_CHECK_FATAL, unit, filename, line, lvalue);
1345 if (r < 0)
1346 return 0;
1347
1348 eo = EXEC_OUTPUT_FILE;
1349
1350 } else if ((n = startswith(rvalue, "append:"))) {
1351
1352 r = unit_path_printf(u, n, &resolved);
1353 if (r < 0) {
1354 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", n);
1355 return 0;
1356 }
1357
1358 r = path_simplify_and_warn(resolved, PATH_CHECK_ABSOLUTE | PATH_CHECK_FATAL, unit, filename, line, lvalue);
1359 if (r < 0)
1360 return 0;
1361
1362 eo = EXEC_OUTPUT_FILE_APPEND;
1363
1364 } else if ((n = startswith(rvalue, "truncate:"))) {
1365
1366 r = unit_path_printf(u, n, &resolved);
1367 if (r < 0) {
1368 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", n);
1369 return 0;
1370 }
1371
1372 r = path_simplify_and_warn(resolved, PATH_CHECK_ABSOLUTE | PATH_CHECK_FATAL, unit, filename, line, lvalue);
1373 if (r < 0)
1374 return 0;
1375
1376 eo = EXEC_OUTPUT_FILE_TRUNCATE;
1377 } else {
1378 eo = exec_output_from_string(rvalue);
1379 if (eo < 0) {
1380 log_syntax(unit, LOG_WARNING, filename, line, eo, "Failed to parse output specifier, ignoring: %s", rvalue);
1381 return 0;
1382 }
1383 }
1384
1385 if (obsolete)
1386 log_syntax(unit, LOG_NOTICE, filename, line, 0,
1387 "Standard output type %s is obsolete, automatically updating to %s. Please update your unit file, and consider removing the setting altogether.",
1388 rvalue, exec_output_to_string(eo));
1389
1390 if (streq(lvalue, "StandardOutput")) {
1391 if (eo == EXEC_OUTPUT_NAMED_FD)
1392 free_and_replace(c->stdio_fdname[STDOUT_FILENO], resolved);
1393 else
1394 free_and_replace(c->stdio_file[STDOUT_FILENO], resolved);
1395
1396 c->std_output = eo;
1397
1398 } else {
1399 assert(streq(lvalue, "StandardError"));
1400
1401 if (eo == EXEC_OUTPUT_NAMED_FD)
1402 free_and_replace(c->stdio_fdname[STDERR_FILENO], resolved);
1403 else
1404 free_and_replace(c->stdio_file[STDERR_FILENO], resolved);
1405
1406 c->std_error = eo;
1407 }
1408
1409 return 0;
1410 }
1411
1412 int config_parse_exec_io_class(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 = ASSERT_PTR(data);
1424 int x;
1425
1426 assert(filename);
1427 assert(lvalue);
1428 assert(rvalue);
1429
1430 if (isempty(rvalue)) {
1431 c->ioprio_set = false;
1432 c->ioprio = IOPRIO_DEFAULT_CLASS_AND_PRIO;
1433 return 0;
1434 }
1435
1436 x = ioprio_class_from_string(rvalue);
1437 if (x < 0) {
1438 log_syntax(unit, LOG_WARNING, filename, line, x, "Failed to parse IO scheduling class, ignoring: %s", rvalue);
1439 return 0;
1440 }
1441
1442 c->ioprio = ioprio_normalize(ioprio_prio_value(x, ioprio_prio_data(c->ioprio)));
1443 c->ioprio_set = true;
1444
1445 return 0;
1446 }
1447
1448 int config_parse_exec_io_priority(const char *unit,
1449 const char *filename,
1450 unsigned line,
1451 const char *section,
1452 unsigned section_line,
1453 const char *lvalue,
1454 int ltype,
1455 const char *rvalue,
1456 void *data,
1457 void *userdata) {
1458
1459 ExecContext *c = ASSERT_PTR(data);
1460 int i, r;
1461
1462 assert(filename);
1463 assert(lvalue);
1464 assert(rvalue);
1465
1466 if (isempty(rvalue)) {
1467 c->ioprio_set = false;
1468 c->ioprio = IOPRIO_DEFAULT_CLASS_AND_PRIO;
1469 return 0;
1470 }
1471
1472 r = ioprio_parse_priority(rvalue, &i);
1473 if (r < 0) {
1474 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse IO priority, ignoring: %s", rvalue);
1475 return 0;
1476 }
1477
1478 c->ioprio = ioprio_normalize(ioprio_prio_value(ioprio_prio_class(c->ioprio), i));
1479 c->ioprio_set = true;
1480
1481 return 0;
1482 }
1483
1484 int config_parse_exec_cpu_sched_policy(const char *unit,
1485 const char *filename,
1486 unsigned line,
1487 const char *section,
1488 unsigned section_line,
1489 const char *lvalue,
1490 int ltype,
1491 const char *rvalue,
1492 void *data,
1493 void *userdata) {
1494
1495 ExecContext *c = ASSERT_PTR(data);
1496 int x;
1497
1498 assert(filename);
1499 assert(lvalue);
1500 assert(rvalue);
1501
1502 if (isempty(rvalue)) {
1503 c->cpu_sched_set = false;
1504 c->cpu_sched_policy = SCHED_OTHER;
1505 c->cpu_sched_priority = 0;
1506 return 0;
1507 }
1508
1509 x = sched_policy_from_string(rvalue);
1510 if (x < 0) {
1511 log_syntax(unit, LOG_WARNING, filename, line, x, "Failed to parse CPU scheduling policy, ignoring: %s", rvalue);
1512 return 0;
1513 }
1514
1515 c->cpu_sched_policy = x;
1516 /* Moving to or from real-time policy? We need to adjust the priority */
1517 c->cpu_sched_priority = CLAMP(c->cpu_sched_priority, sched_get_priority_min(x), sched_get_priority_max(x));
1518 c->cpu_sched_set = true;
1519
1520 return 0;
1521 }
1522
1523 int config_parse_exec_mount_apivfs(const char *unit,
1524 const char *filename,
1525 unsigned line,
1526 const char *section,
1527 unsigned section_line,
1528 const char *lvalue,
1529 int ltype,
1530 const char *rvalue,
1531 void *data,
1532 void *userdata) {
1533
1534 ExecContext *c = ASSERT_PTR(data);
1535 int k;
1536
1537 assert(filename);
1538 assert(lvalue);
1539 assert(rvalue);
1540
1541 if (isempty(rvalue)) {
1542 c->mount_apivfs_set = false;
1543 c->mount_apivfs = false;
1544 return 0;
1545 }
1546
1547 k = parse_boolean(rvalue);
1548 if (k < 0) {
1549 log_syntax(unit, LOG_WARNING, filename, line, k,
1550 "Failed to parse boolean value, ignoring: %s",
1551 rvalue);
1552 return 0;
1553 }
1554
1555 c->mount_apivfs_set = true;
1556 c->mount_apivfs = k;
1557 return 0;
1558 }
1559
1560 int config_parse_numa_mask(const char *unit,
1561 const char *filename,
1562 unsigned line,
1563 const char *section,
1564 unsigned section_line,
1565 const char *lvalue,
1566 int ltype,
1567 const char *rvalue,
1568 void *data,
1569 void *userdata) {
1570 int r;
1571 NUMAPolicy *p = ASSERT_PTR(data);
1572
1573 assert(filename);
1574 assert(lvalue);
1575 assert(rvalue);
1576
1577 if (streq(rvalue, "all")) {
1578 r = numa_mask_add_all(&p->nodes);
1579 if (r < 0)
1580 log_syntax(unit, LOG_WARNING, filename, line, r,
1581 "Failed to create NUMA mask representing \"all\" NUMA nodes, ignoring: %m");
1582 } else {
1583 r = parse_cpu_set_extend(rvalue, &p->nodes, true, unit, filename, line, lvalue);
1584 if (r < 0)
1585 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse NUMA node mask, ignoring: %s", rvalue);
1586 }
1587
1588 return 0;
1589 }
1590
1591 int config_parse_exec_cpu_sched_prio(const char *unit,
1592 const char *filename,
1593 unsigned line,
1594 const char *section,
1595 unsigned section_line,
1596 const char *lvalue,
1597 int ltype,
1598 const char *rvalue,
1599 void *data,
1600 void *userdata) {
1601
1602 ExecContext *c = ASSERT_PTR(data);
1603 int i, r;
1604
1605 assert(filename);
1606 assert(lvalue);
1607 assert(rvalue);
1608
1609 r = safe_atoi(rvalue, &i);
1610 if (r < 0) {
1611 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse CPU scheduling priority, ignoring: %s", rvalue);
1612 return 0;
1613 }
1614
1615 /* On Linux RR/FIFO range from 1 to 99 and OTHER/BATCH may only be 0. Policy might be set later so
1616 * we do not check the precise range, but only the generic outer bounds. */
1617 if (i < 0 || i > 99) {
1618 log_syntax(unit, LOG_WARNING, filename, line, 0, "CPU scheduling priority is out of range, ignoring: %s", rvalue);
1619 return 0;
1620 }
1621
1622 c->cpu_sched_priority = i;
1623 c->cpu_sched_set = true;
1624
1625 return 0;
1626 }
1627
1628 int config_parse_root_image_options(
1629 const char *unit,
1630 const char *filename,
1631 unsigned line,
1632 const char *section,
1633 unsigned section_line,
1634 const char *lvalue,
1635 int ltype,
1636 const char *rvalue,
1637 void *data,
1638 void *userdata) {
1639
1640 _cleanup_(mount_options_free_allp) MountOptions *options = NULL;
1641 _cleanup_strv_free_ char **l = NULL;
1642 ExecContext *c = ASSERT_PTR(data);
1643 const Unit *u = userdata;
1644 int r;
1645
1646 assert(filename);
1647 assert(lvalue);
1648 assert(rvalue);
1649
1650 if (isempty(rvalue)) {
1651 c->root_image_options = mount_options_free_all(c->root_image_options);
1652 return 0;
1653 }
1654
1655 r = strv_split_colon_pairs(&l, rvalue);
1656 if (r == -ENOMEM)
1657 return log_oom();
1658 if (r < 0) {
1659 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse %s, ignoring: %s", lvalue, rvalue);
1660 return 0;
1661 }
1662
1663 STRV_FOREACH_PAIR(first, second, l) {
1664 MountOptions *o = NULL;
1665 _cleanup_free_ char *mount_options_resolved = NULL;
1666 const char *mount_options = NULL, *partition = "root";
1667 PartitionDesignator partition_designator;
1668
1669 /* Format is either 'root:foo' or 'foo' (root is implied) */
1670 if (!isempty(*second)) {
1671 partition = *first;
1672 mount_options = *second;
1673 } else
1674 mount_options = *first;
1675
1676 partition_designator = partition_designator_from_string(partition);
1677 if (partition_designator < 0) {
1678 log_syntax(unit, LOG_WARNING, filename, line, partition_designator,
1679 "Invalid partition name %s, ignoring", partition);
1680 continue;
1681 }
1682 r = unit_full_printf(u, mount_options, &mount_options_resolved);
1683 if (r < 0) {
1684 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", mount_options);
1685 continue;
1686 }
1687
1688 o = new(MountOptions, 1);
1689 if (!o)
1690 return log_oom();
1691 *o = (MountOptions) {
1692 .partition_designator = partition_designator,
1693 .options = TAKE_PTR(mount_options_resolved),
1694 };
1695 LIST_APPEND(mount_options, options, TAKE_PTR(o));
1696 }
1697
1698 if (options)
1699 LIST_JOIN(mount_options, c->root_image_options, options);
1700 else
1701 /* empty spaces/separators only */
1702 c->root_image_options = mount_options_free_all(c->root_image_options);
1703
1704 return 0;
1705 }
1706
1707 int config_parse_exec_root_hash(
1708 const char *unit,
1709 const char *filename,
1710 unsigned line,
1711 const char *section,
1712 unsigned section_line,
1713 const char *lvalue,
1714 int ltype,
1715 const char *rvalue,
1716 void *data,
1717 void *userdata) {
1718
1719 _cleanup_free_ void *roothash_decoded = NULL;
1720 ExecContext *c = ASSERT_PTR(data);
1721 size_t roothash_decoded_size = 0;
1722 int r;
1723
1724 assert(filename);
1725 assert(line);
1726 assert(rvalue);
1727
1728 if (isempty(rvalue)) {
1729 /* Reset if the empty string is assigned */
1730 c->root_hash_path = mfree(c->root_hash_path);
1731 c->root_hash = mfree(c->root_hash);
1732 c->root_hash_size = 0;
1733 return 0;
1734 }
1735
1736 if (path_is_absolute(rvalue)) {
1737 /* We have the path to a roothash to load and decode, eg: RootHash=/foo/bar.roothash */
1738 _cleanup_free_ char *p = NULL;
1739
1740 p = strdup(rvalue);
1741 if (!p)
1742 return -ENOMEM;
1743
1744 free_and_replace(c->root_hash_path, p);
1745 c->root_hash = mfree(c->root_hash);
1746 c->root_hash_size = 0;
1747 return 0;
1748 }
1749
1750 /* We have a roothash to decode, eg: RootHash=012345789abcdef */
1751 r = unhexmem(rvalue, strlen(rvalue), &roothash_decoded, &roothash_decoded_size);
1752 if (r < 0) {
1753 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to decode RootHash=, ignoring: %s", rvalue);
1754 return 0;
1755 }
1756 if (roothash_decoded_size < sizeof(sd_id128_t)) {
1757 log_syntax(unit, LOG_WARNING, filename, line, 0, "RootHash= is too short, ignoring: %s", rvalue);
1758 return 0;
1759 }
1760
1761 free_and_replace(c->root_hash, roothash_decoded);
1762 c->root_hash_size = roothash_decoded_size;
1763 c->root_hash_path = mfree(c->root_hash_path);
1764
1765 return 0;
1766 }
1767
1768 int config_parse_exec_root_hash_sig(
1769 const char *unit,
1770 const char *filename,
1771 unsigned line,
1772 const char *section,
1773 unsigned section_line,
1774 const char *lvalue,
1775 int ltype,
1776 const char *rvalue,
1777 void *data,
1778 void *userdata) {
1779
1780 _cleanup_free_ void *roothash_sig_decoded = NULL;
1781 char *value;
1782 ExecContext *c = ASSERT_PTR(data);
1783 size_t roothash_sig_decoded_size = 0;
1784 int r;
1785
1786 assert(filename);
1787 assert(line);
1788 assert(rvalue);
1789
1790 if (isempty(rvalue)) {
1791 /* Reset if the empty string is assigned */
1792 c->root_hash_sig_path = mfree(c->root_hash_sig_path);
1793 c->root_hash_sig = mfree(c->root_hash_sig);
1794 c->root_hash_sig_size = 0;
1795 return 0;
1796 }
1797
1798 if (path_is_absolute(rvalue)) {
1799 /* We have the path to a roothash signature to load and decode, eg: RootHashSignature=/foo/bar.roothash.p7s */
1800 _cleanup_free_ char *p = NULL;
1801
1802 p = strdup(rvalue);
1803 if (!p)
1804 return log_oom();
1805
1806 free_and_replace(c->root_hash_sig_path, p);
1807 c->root_hash_sig = mfree(c->root_hash_sig);
1808 c->root_hash_sig_size = 0;
1809 return 0;
1810 }
1811
1812 if (!(value = startswith(rvalue, "base64:"))) {
1813 log_syntax(unit, LOG_WARNING, filename, line, 0,
1814 "Failed to decode RootHashSignature=, not a path but doesn't start with 'base64:', ignoring: %s", rvalue);
1815 return 0;
1816 }
1817
1818 /* We have a roothash signature to decode, eg: RootHashSignature=base64:012345789abcdef */
1819 r = unbase64mem(value, strlen(value), &roothash_sig_decoded, &roothash_sig_decoded_size);
1820 if (r < 0) {
1821 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to decode RootHashSignature=, ignoring: %s", rvalue);
1822 return 0;
1823 }
1824
1825 free_and_replace(c->root_hash_sig, roothash_sig_decoded);
1826 c->root_hash_sig_size = roothash_sig_decoded_size;
1827 c->root_hash_sig_path = mfree(c->root_hash_sig_path);
1828
1829 return 0;
1830 }
1831
1832 int config_parse_exec_cpu_affinity(
1833 const char *unit,
1834 const char *filename,
1835 unsigned line,
1836 const char *section,
1837 unsigned section_line,
1838 const char *lvalue,
1839 int ltype,
1840 const char *rvalue,
1841 void *data,
1842 void *userdata) {
1843
1844 ExecContext *c = ASSERT_PTR(data);
1845 const Unit *u = userdata;
1846 _cleanup_free_ char *k = NULL;
1847 int r;
1848
1849 assert(filename);
1850 assert(lvalue);
1851 assert(rvalue);
1852
1853 if (streq(rvalue, "numa")) {
1854 c->cpu_affinity_from_numa = true;
1855 cpu_set_reset(&c->cpu_set);
1856
1857 return 0;
1858 }
1859
1860 r = unit_full_printf(u, rvalue, &k);
1861 if (r < 0) {
1862 log_syntax(unit, LOG_WARNING, filename, line, r,
1863 "Failed to resolve unit specifiers in '%s', ignoring: %m",
1864 rvalue);
1865 return 0;
1866 }
1867
1868 r = parse_cpu_set_extend(k, &c->cpu_set, true, unit, filename, line, lvalue);
1869 if (r >= 0)
1870 c->cpu_affinity_from_numa = false;
1871
1872 return 0;
1873 }
1874
1875 int config_parse_capability_set(
1876 const char *unit,
1877 const char *filename,
1878 unsigned line,
1879 const char *section,
1880 unsigned section_line,
1881 const char *lvalue,
1882 int ltype,
1883 const char *rvalue,
1884 void *data,
1885 void *userdata) {
1886
1887 uint64_t *capability_set = ASSERT_PTR(data);
1888 uint64_t sum = 0, initial, def;
1889 bool invert = false;
1890 int r;
1891
1892 assert(filename);
1893 assert(lvalue);
1894 assert(rvalue);
1895
1896 if (rvalue[0] == '~') {
1897 invert = true;
1898 rvalue++;
1899 }
1900
1901 if (streq(lvalue, "CapabilityBoundingSet")) {
1902 initial = CAP_MASK_ALL; /* initialized to all bits on */
1903 def = CAP_MASK_UNSET; /* not set */
1904 } else
1905 def = initial = 0; /* All bits off */
1906
1907 r = capability_set_from_string(rvalue, &sum);
1908 if (r < 0) {
1909 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse %s= specifier '%s', ignoring: %m", lvalue, rvalue);
1910 return 0;
1911 }
1912
1913 if (sum == 0 || *capability_set == def)
1914 /* "", "~" or uninitialized data -> replace */
1915 *capability_set = invert ? ~sum : sum;
1916 else {
1917 /* previous data -> merge */
1918 if (invert)
1919 *capability_set &= ~sum;
1920 else
1921 *capability_set |= sum;
1922 }
1923
1924 return 0;
1925 }
1926
1927 int config_parse_exec_selinux_context(
1928 const char *unit,
1929 const char *filename,
1930 unsigned line,
1931 const char *section,
1932 unsigned section_line,
1933 const char *lvalue,
1934 int ltype,
1935 const char *rvalue,
1936 void *data,
1937 void *userdata) {
1938
1939 ExecContext *c = ASSERT_PTR(data);
1940 const Unit *u = userdata;
1941 bool ignore;
1942 char *k;
1943 int r;
1944
1945 assert(filename);
1946 assert(lvalue);
1947 assert(rvalue);
1948
1949 if (isempty(rvalue)) {
1950 c->selinux_context = mfree(c->selinux_context);
1951 c->selinux_context_ignore = false;
1952 return 0;
1953 }
1954
1955 if (rvalue[0] == '-') {
1956 ignore = true;
1957 rvalue++;
1958 } else
1959 ignore = false;
1960
1961 r = unit_full_printf(u, rvalue, &k);
1962 if (r < 0) {
1963 log_syntax(unit, ignore ? LOG_WARNING : LOG_ERR, filename, line, r,
1964 "Failed to resolve unit specifiers in '%s'%s: %m",
1965 rvalue, ignore ? ", ignoring" : "");
1966 return ignore ? 0 : -ENOEXEC;
1967 }
1968
1969 free_and_replace(c->selinux_context, k);
1970 c->selinux_context_ignore = ignore;
1971
1972 return 0;
1973 }
1974
1975 int config_parse_exec_apparmor_profile(
1976 const char *unit,
1977 const char *filename,
1978 unsigned line,
1979 const char *section,
1980 unsigned section_line,
1981 const char *lvalue,
1982 int ltype,
1983 const char *rvalue,
1984 void *data,
1985 void *userdata) {
1986
1987 ExecContext *c = ASSERT_PTR(data);
1988 const Unit *u = userdata;
1989 bool ignore;
1990 char *k;
1991 int r;
1992
1993 assert(filename);
1994 assert(lvalue);
1995 assert(rvalue);
1996
1997 if (isempty(rvalue)) {
1998 c->apparmor_profile = mfree(c->apparmor_profile);
1999 c->apparmor_profile_ignore = false;
2000 return 0;
2001 }
2002
2003 if (rvalue[0] == '-') {
2004 ignore = true;
2005 rvalue++;
2006 } else
2007 ignore = false;
2008
2009 r = unit_full_printf(u, rvalue, &k);
2010 if (r < 0) {
2011 log_syntax(unit, ignore ? LOG_WARNING : LOG_ERR, filename, line, r,
2012 "Failed to resolve unit specifiers in '%s'%s: %m",
2013 rvalue, ignore ? ", ignoring" : "");
2014 return ignore ? 0 : -ENOEXEC;
2015 }
2016
2017 free_and_replace(c->apparmor_profile, k);
2018 c->apparmor_profile_ignore = ignore;
2019
2020 return 0;
2021 }
2022
2023 int config_parse_exec_smack_process_label(
2024 const char *unit,
2025 const char *filename,
2026 unsigned line,
2027 const char *section,
2028 unsigned section_line,
2029 const char *lvalue,
2030 int ltype,
2031 const char *rvalue,
2032 void *data,
2033 void *userdata) {
2034
2035 ExecContext *c = ASSERT_PTR(data);
2036 const Unit *u = userdata;
2037 bool ignore;
2038 char *k;
2039 int r;
2040
2041 assert(filename);
2042 assert(lvalue);
2043 assert(rvalue);
2044
2045 if (isempty(rvalue)) {
2046 c->smack_process_label = mfree(c->smack_process_label);
2047 c->smack_process_label_ignore = false;
2048 return 0;
2049 }
2050
2051 if (rvalue[0] == '-') {
2052 ignore = true;
2053 rvalue++;
2054 } else
2055 ignore = false;
2056
2057 r = unit_full_printf(u, rvalue, &k);
2058 if (r < 0) {
2059 log_syntax(unit, ignore ? LOG_WARNING : LOG_ERR, filename, line, r,
2060 "Failed to resolve unit specifiers in '%s'%s: %m",
2061 rvalue, ignore ? ", ignoring" : "");
2062 return ignore ? 0 : -ENOEXEC;
2063 }
2064
2065 free_and_replace(c->smack_process_label, k);
2066 c->smack_process_label_ignore = ignore;
2067
2068 return 0;
2069 }
2070
2071 int config_parse_timer(
2072 const char *unit,
2073 const char *filename,
2074 unsigned line,
2075 const char *section,
2076 unsigned section_line,
2077 const char *lvalue,
2078 int ltype,
2079 const char *rvalue,
2080 void *data,
2081 void *userdata) {
2082
2083 _cleanup_(calendar_spec_freep) CalendarSpec *c = NULL;
2084 _cleanup_free_ char *k = NULL;
2085 const Unit *u = userdata;
2086 Timer *t = ASSERT_PTR(data);
2087 usec_t usec = 0;
2088 TimerValue *v;
2089 int r;
2090
2091 assert(filename);
2092 assert(lvalue);
2093 assert(rvalue);
2094
2095 if (isempty(rvalue)) {
2096 /* Empty assignment resets list */
2097 timer_free_values(t);
2098 return 0;
2099 }
2100
2101 r = unit_full_printf(u, rvalue, &k);
2102 if (r < 0) {
2103 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue);
2104 return 0;
2105 }
2106
2107 if (ltype == TIMER_CALENDAR) {
2108 r = calendar_spec_from_string(k, &c);
2109 if (r < 0) {
2110 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse calendar specification, ignoring: %s", k);
2111 return 0;
2112 }
2113 } else {
2114 r = parse_sec(k, &usec);
2115 if (r < 0) {
2116 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse timer value, ignoring: %s", k);
2117 return 0;
2118 }
2119 }
2120
2121 v = new(TimerValue, 1);
2122 if (!v)
2123 return log_oom();
2124
2125 *v = (TimerValue) {
2126 .base = ltype,
2127 .value = usec,
2128 .calendar_spec = TAKE_PTR(c),
2129 };
2130
2131 LIST_PREPEND(value, t->values, v);
2132
2133 return 0;
2134 }
2135
2136 int config_parse_trigger_unit(
2137 const char *unit,
2138 const char *filename,
2139 unsigned line,
2140 const char *section,
2141 unsigned section_line,
2142 const char *lvalue,
2143 int ltype,
2144 const char *rvalue,
2145 void *data,
2146 void *userdata) {
2147
2148 _cleanup_free_ char *p = NULL;
2149 Unit *u = ASSERT_PTR(data);
2150 UnitType type;
2151 int r;
2152
2153 assert(filename);
2154 assert(lvalue);
2155 assert(rvalue);
2156
2157 if (UNIT_TRIGGER(u)) {
2158 log_syntax(unit, LOG_WARNING, filename, line, 0, "Multiple units to trigger specified, ignoring: %s", rvalue);
2159 return 0;
2160 }
2161
2162 r = unit_name_printf(u, rvalue, &p);
2163 if (r < 0) {
2164 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", rvalue);
2165 return 0;
2166 }
2167
2168 type = unit_name_to_type(p);
2169 if (type < 0) {
2170 log_syntax(unit, LOG_WARNING, filename, line, type, "Unit type not valid, ignoring: %s", rvalue);
2171 return 0;
2172 }
2173 if (unit_has_name(u, p)) {
2174 log_syntax(unit, LOG_WARNING, filename, line, 0, "Units cannot trigger themselves, ignoring: %s", rvalue);
2175 return 0;
2176 }
2177
2178 r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, UNIT_TRIGGERS, p, true, UNIT_DEPENDENCY_FILE);
2179 if (r < 0) {
2180 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to add trigger on %s, ignoring: %m", p);
2181 return 0;
2182 }
2183
2184 return 0;
2185 }
2186
2187 int config_parse_path_spec(const char *unit,
2188 const char *filename,
2189 unsigned line,
2190 const char *section,
2191 unsigned section_line,
2192 const char *lvalue,
2193 int ltype,
2194 const char *rvalue,
2195 void *data,
2196 void *userdata) {
2197
2198 Path *p = ASSERT_PTR(data);
2199 PathSpec *s;
2200 PathType b;
2201 _cleanup_free_ char *k = NULL;
2202 int r;
2203
2204 assert(filename);
2205 assert(lvalue);
2206 assert(rvalue);
2207
2208 if (isempty(rvalue)) {
2209 /* Empty assignment clears list */
2210 path_free_specs(p);
2211 return 0;
2212 }
2213
2214 b = path_type_from_string(lvalue);
2215 if (b < 0) {
2216 log_syntax(unit, LOG_WARNING, filename, line, b, "Failed to parse path type, ignoring: %s", lvalue);
2217 return 0;
2218 }
2219
2220 r = unit_path_printf(UNIT(p), rvalue, &k);
2221 if (r < 0) {
2222 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", rvalue);
2223 return 0;
2224 }
2225
2226 r = path_simplify_and_warn(k, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
2227 if (r < 0)
2228 return 0;
2229
2230 s = new0(PathSpec, 1);
2231 if (!s)
2232 return log_oom();
2233
2234 s->unit = UNIT(p);
2235 s->path = TAKE_PTR(k);
2236 s->type = b;
2237 s->inotify_fd = -EBADF;
2238
2239 LIST_PREPEND(spec, p->specs, s);
2240
2241 return 0;
2242 }
2243
2244 int config_parse_socket_service(
2245 const char *unit,
2246 const char *filename,
2247 unsigned line,
2248 const char *section,
2249 unsigned section_line,
2250 const char *lvalue,
2251 int ltype,
2252 const char *rvalue,
2253 void *data,
2254 void *userdata) {
2255
2256 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2257 _cleanup_free_ char *p = NULL;
2258 Socket *s = ASSERT_PTR(data);
2259 Unit *x;
2260 int r;
2261
2262 assert(filename);
2263 assert(lvalue);
2264 assert(rvalue);
2265
2266 r = unit_name_printf(UNIT(s), rvalue, &p);
2267 if (r < 0) {
2268 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", rvalue);
2269 return 0;
2270 }
2271
2272 if (!endswith(p, ".service")) {
2273 log_syntax(unit, LOG_WARNING, filename, line, 0, "Unit must be of type service, ignoring: %s", rvalue);
2274 return 0;
2275 }
2276
2277 r = manager_load_unit(UNIT(s)->manager, p, NULL, &error, &x);
2278 if (r < 0) {
2279 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to load unit %s, ignoring: %s", rvalue, bus_error_message(&error, r));
2280 return 0;
2281 }
2282
2283 unit_ref_set(&s->service, UNIT(s), x);
2284
2285 return 0;
2286 }
2287
2288 int config_parse_fdname(
2289 const char *unit,
2290 const char *filename,
2291 unsigned line,
2292 const char *section,
2293 unsigned section_line,
2294 const char *lvalue,
2295 int ltype,
2296 const char *rvalue,
2297 void *data,
2298 void *userdata) {
2299
2300 _cleanup_free_ char *p = NULL;
2301 Socket *s = ASSERT_PTR(data);
2302 int r;
2303
2304 assert(filename);
2305 assert(lvalue);
2306 assert(rvalue);
2307
2308 if (isempty(rvalue)) {
2309 s->fdname = mfree(s->fdname);
2310 return 0;
2311 }
2312
2313 r = unit_fd_printf(UNIT(s), rvalue, &p);
2314 if (r < 0) {
2315 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue);
2316 return 0;
2317 }
2318
2319 if (!fdname_is_valid(p)) {
2320 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid file descriptor name, ignoring: %s", p);
2321 return 0;
2322 }
2323
2324 return free_and_replace(s->fdname, p);
2325 }
2326
2327 int config_parse_service_sockets(
2328 const char *unit,
2329 const char *filename,
2330 unsigned line,
2331 const char *section,
2332 unsigned section_line,
2333 const char *lvalue,
2334 int ltype,
2335 const char *rvalue,
2336 void *data,
2337 void *userdata) {
2338
2339 Service *s = ASSERT_PTR(data);
2340 int r;
2341
2342 assert(filename);
2343 assert(lvalue);
2344 assert(rvalue);
2345
2346 for (const char *p = rvalue;;) {
2347 _cleanup_free_ char *word = NULL, *k = NULL;
2348
2349 r = extract_first_word(&p, &word, NULL, 0);
2350 if (r == -ENOMEM)
2351 return log_oom();
2352 if (r < 0) {
2353 log_syntax(unit, LOG_WARNING, filename, line, r, "Trailing garbage in sockets, ignoring: %s", rvalue);
2354 return 0;
2355 }
2356 if (r == 0)
2357 return 0;
2358
2359 r = unit_name_printf(UNIT(s), word, &k);
2360 if (r < 0) {
2361 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", word);
2362 continue;
2363 }
2364
2365 if (!endswith(k, ".socket")) {
2366 log_syntax(unit, LOG_WARNING, filename, line, 0, "Unit must be of type socket, ignoring: %s", k);
2367 continue;
2368 }
2369
2370 r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_WANTS, UNIT_AFTER, k, true, UNIT_DEPENDENCY_FILE);
2371 if (r < 0)
2372 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to add dependency on %s, ignoring: %m", k);
2373
2374 r = unit_add_dependency_by_name(UNIT(s), UNIT_TRIGGERED_BY, k, true, UNIT_DEPENDENCY_FILE);
2375 if (r < 0)
2376 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to add dependency on %s, ignoring: %m", k);
2377 }
2378 }
2379
2380 int config_parse_bus_name(
2381 const char *unit,
2382 const char *filename,
2383 unsigned line,
2384 const char *section,
2385 unsigned section_line,
2386 const char *lvalue,
2387 int ltype,
2388 const char *rvalue,
2389 void *data,
2390 void *userdata) {
2391
2392 _cleanup_free_ char *k = NULL;
2393 const Unit *u = ASSERT_PTR(userdata);
2394 int r;
2395
2396 assert(filename);
2397 assert(lvalue);
2398 assert(rvalue);
2399
2400 r = unit_full_printf_full(u, rvalue, SD_BUS_MAXIMUM_NAME_LENGTH, &k);
2401 if (r < 0) {
2402 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", rvalue);
2403 return 0;
2404 }
2405
2406 if (!sd_bus_service_name_is_valid(k)) {
2407 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid bus name, ignoring: %s", k);
2408 return 0;
2409 }
2410
2411 return config_parse_string(unit, filename, line, section, section_line, lvalue, ltype, k, data, userdata);
2412 }
2413
2414 int config_parse_service_timeout(
2415 const char *unit,
2416 const char *filename,
2417 unsigned line,
2418 const char *section,
2419 unsigned section_line,
2420 const char *lvalue,
2421 int ltype,
2422 const char *rvalue,
2423 void *data,
2424 void *userdata) {
2425
2426 Service *s = ASSERT_PTR(userdata);
2427 usec_t usec;
2428 int r;
2429
2430 assert(filename);
2431 assert(lvalue);
2432 assert(rvalue);
2433
2434 /* This is called for two cases: TimeoutSec= and TimeoutStartSec=. */
2435
2436 /* Traditionally, these options accepted 0 to disable the timeouts. However, a timeout of 0 suggests it happens
2437 * immediately, hence fix this to become USEC_INFINITY instead. This is in-line with how we internally handle
2438 * all other timeouts. */
2439 r = parse_sec_fix_0(rvalue, &usec);
2440 if (r < 0) {
2441 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse %s= parameter, ignoring: %s", lvalue, rvalue);
2442 return 0;
2443 }
2444
2445 s->start_timeout_defined = true;
2446 s->timeout_start_usec = usec;
2447
2448 if (streq(lvalue, "TimeoutSec"))
2449 s->timeout_stop_usec = usec;
2450
2451 return 0;
2452 }
2453
2454 int config_parse_timeout_abort(
2455 const char *unit,
2456 const char *filename,
2457 unsigned line,
2458 const char *section,
2459 unsigned section_line,
2460 const char *lvalue,
2461 int ltype,
2462 const char *rvalue,
2463 void *data,
2464 void *userdata) {
2465
2466 usec_t *ret = ASSERT_PTR(data);
2467 int r;
2468
2469 assert(filename);
2470 assert(lvalue);
2471 assert(rvalue);
2472
2473 /* Note: apart from setting the arg, this returns an extra bit of information in the return value. */
2474
2475 if (isempty(rvalue)) {
2476 *ret = 0;
2477 return 0; /* "not set" */
2478 }
2479
2480 r = parse_sec(rvalue, ret);
2481 if (r < 0)
2482 return log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse %s= setting, ignoring: %s", lvalue, rvalue);
2483
2484 return 1; /* "set" */
2485 }
2486
2487 int config_parse_service_timeout_abort(
2488 const char *unit,
2489 const char *filename,
2490 unsigned line,
2491 const char *section,
2492 unsigned section_line,
2493 const char *lvalue,
2494 int ltype,
2495 const char *rvalue,
2496 void *data,
2497 void *userdata) {
2498
2499 Service *s = ASSERT_PTR(userdata);
2500 int r;
2501
2502 r = config_parse_timeout_abort(unit, filename, line, section, section_line, lvalue, ltype, rvalue,
2503 &s->timeout_abort_usec, s);
2504 if (r >= 0)
2505 s->timeout_abort_set = r;
2506 return 0;
2507 }
2508
2509 int config_parse_user_group_compat(
2510 const char *unit,
2511 const char *filename,
2512 unsigned line,
2513 const char *section,
2514 unsigned section_line,
2515 const char *lvalue,
2516 int ltype,
2517 const char *rvalue,
2518 void *data,
2519 void *userdata) {
2520
2521 _cleanup_free_ char *k = NULL;
2522 char **user = data;
2523 const Unit *u = ASSERT_PTR(userdata);
2524 int r;
2525
2526 assert(filename);
2527 assert(lvalue);
2528 assert(rvalue);
2529
2530 if (isempty(rvalue)) {
2531 *user = mfree(*user);
2532 return 0;
2533 }
2534
2535 r = unit_full_printf(u, rvalue, &k);
2536 if (r < 0) {
2537 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in %s: %m", rvalue);
2538 return -ENOEXEC;
2539 }
2540
2541 if (!valid_user_group_name(k, VALID_USER_ALLOW_NUMERIC|VALID_USER_RELAX|VALID_USER_WARN)) {
2542 log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid user/group name or numeric ID: %s", k);
2543 return -ENOEXEC;
2544 }
2545
2546 if (strstr(lvalue, "User") && streq(k, NOBODY_USER_NAME))
2547 log_struct(LOG_NOTICE,
2548 "MESSAGE=%s:%u: Special user %s configured, this is not safe!", filename, line, k,
2549 "UNIT=%s", unit,
2550 "MESSAGE_ID=" SD_MESSAGE_NOBODY_USER_UNSUITABLE_STR,
2551 "OFFENDING_USER=%s", k,
2552 "CONFIG_FILE=%s", filename,
2553 "CONFIG_LINE=%u", line);
2554
2555 return free_and_replace(*user, k);
2556 }
2557
2558 int config_parse_user_group_strv_compat(
2559 const char *unit,
2560 const char *filename,
2561 unsigned line,
2562 const char *section,
2563 unsigned section_line,
2564 const char *lvalue,
2565 int ltype,
2566 const char *rvalue,
2567 void *data,
2568 void *userdata) {
2569
2570 char ***users = data;
2571 const Unit *u = ASSERT_PTR(userdata);
2572 int r;
2573
2574 assert(filename);
2575 assert(lvalue);
2576 assert(rvalue);
2577
2578 if (isempty(rvalue)) {
2579 *users = strv_free(*users);
2580 return 0;
2581 }
2582
2583 for (const char *p = rvalue;;) {
2584 _cleanup_free_ char *word = NULL, *k = NULL;
2585
2586 r = extract_first_word(&p, &word, NULL, 0);
2587 if (r == -ENOMEM)
2588 return log_oom();
2589 if (r < 0) {
2590 log_syntax(unit, LOG_ERR, filename, line, r, "Invalid syntax: %s", rvalue);
2591 return -ENOEXEC;
2592 }
2593 if (r == 0)
2594 return 0;
2595
2596 r = unit_full_printf(u, word, &k);
2597 if (r < 0) {
2598 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in %s: %m", word);
2599 return -ENOEXEC;
2600 }
2601
2602 if (!valid_user_group_name(k, VALID_USER_ALLOW_NUMERIC|VALID_USER_RELAX|VALID_USER_WARN)) {
2603 log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid user/group name or numeric ID: %s", k);
2604 return -ENOEXEC;
2605 }
2606
2607 r = strv_push(users, k);
2608 if (r < 0)
2609 return log_oom();
2610
2611 k = NULL;
2612 }
2613 }
2614
2615 int config_parse_working_directory(
2616 const char *unit,
2617 const char *filename,
2618 unsigned line,
2619 const char *section,
2620 unsigned section_line,
2621 const char *lvalue,
2622 int ltype,
2623 const char *rvalue,
2624 void *data,
2625 void *userdata) {
2626
2627 ExecContext *c = ASSERT_PTR(data);
2628 const Unit *u = ASSERT_PTR(userdata);
2629 bool missing_ok;
2630 int r;
2631
2632 assert(filename);
2633 assert(lvalue);
2634 assert(rvalue);
2635
2636 if (isempty(rvalue)) {
2637 c->working_directory_home = false;
2638 c->working_directory = mfree(c->working_directory);
2639 return 0;
2640 }
2641
2642 if (rvalue[0] == '-') {
2643 missing_ok = true;
2644 rvalue++;
2645 } else
2646 missing_ok = false;
2647
2648 if (streq(rvalue, "~")) {
2649 c->working_directory_home = true;
2650 c->working_directory = mfree(c->working_directory);
2651 } else {
2652 _cleanup_free_ char *k = NULL;
2653
2654 r = unit_path_printf(u, rvalue, &k);
2655 if (r < 0) {
2656 log_syntax(unit, missing_ok ? LOG_WARNING : LOG_ERR, filename, line, r,
2657 "Failed to resolve unit specifiers in working directory path '%s'%s: %m",
2658 rvalue, missing_ok ? ", ignoring" : "");
2659 return missing_ok ? 0 : -ENOEXEC;
2660 }
2661
2662 r = path_simplify_and_warn(k, PATH_CHECK_ABSOLUTE | (missing_ok ? 0 : PATH_CHECK_FATAL), unit, filename, line, lvalue);
2663 if (r < 0)
2664 return missing_ok ? 0 : -ENOEXEC;
2665
2666 c->working_directory_home = false;
2667 free_and_replace(c->working_directory, k);
2668 }
2669
2670 c->working_directory_missing_ok = missing_ok;
2671 return 0;
2672 }
2673
2674 int config_parse_unit_env_file(const char *unit,
2675 const char *filename,
2676 unsigned line,
2677 const char *section,
2678 unsigned section_line,
2679 const char *lvalue,
2680 int ltype,
2681 const char *rvalue,
2682 void *data,
2683 void *userdata) {
2684
2685 char ***env = ASSERT_PTR(data);
2686 const Unit *u = userdata;
2687 _cleanup_free_ char *n = NULL;
2688 int r;
2689
2690 assert(filename);
2691 assert(lvalue);
2692 assert(rvalue);
2693
2694 if (isempty(rvalue)) {
2695 /* Empty assignment frees the list */
2696 *env = strv_free(*env);
2697 return 0;
2698 }
2699
2700 r = unit_full_printf_full(u, rvalue, PATH_MAX, &n);
2701 if (r < 0) {
2702 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue);
2703 return 0;
2704 }
2705
2706 r = path_simplify_and_warn(n[0] == '-' ? n + 1 : n, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
2707 if (r < 0)
2708 return 0;
2709
2710 r = strv_push(env, n);
2711 if (r < 0)
2712 return log_oom();
2713
2714 n = NULL;
2715
2716 return 0;
2717 }
2718
2719 int config_parse_environ(
2720 const char *unit,
2721 const char *filename,
2722 unsigned line,
2723 const char *section,
2724 unsigned section_line,
2725 const char *lvalue,
2726 int ltype,
2727 const char *rvalue,
2728 void *data,
2729 void *userdata) {
2730
2731 const Unit *u = userdata;
2732 char ***env = ASSERT_PTR(data);
2733 int r;
2734
2735 assert(filename);
2736 assert(lvalue);
2737 assert(rvalue);
2738
2739 if (isempty(rvalue)) {
2740 /* Empty assignment resets the list */
2741 *env = strv_free(*env);
2742 return 0;
2743 }
2744
2745 /* If 'u' is set, we operate on the regular unit specifier table. Otherwise we use a manager-specific
2746 * specifier table (in which case ltype must contain the runtime scope). */
2747 const Specifier *table = u ? NULL : (const Specifier[]) {
2748 COMMON_SYSTEM_SPECIFIERS,
2749 COMMON_TMP_SPECIFIERS,
2750 COMMON_CREDS_SPECIFIERS(ltype),
2751 { 'h', specifier_user_home, NULL },
2752 { 's', specifier_user_shell, NULL },
2753 };
2754
2755 for (const char *p = rvalue;; ) {
2756 _cleanup_free_ char *word = NULL, *resolved = NULL;
2757
2758 r = extract_first_word(&p, &word, NULL, EXTRACT_CUNESCAPE|EXTRACT_UNQUOTE);
2759 if (r == -ENOMEM)
2760 return log_oom();
2761 if (r < 0) {
2762 log_syntax(unit, LOG_WARNING, filename, line, r,
2763 "Invalid syntax, ignoring: %s", rvalue);
2764 return 0;
2765 }
2766 if (r == 0)
2767 return 0;
2768
2769 if (table)
2770 r = specifier_printf(word, sc_arg_max(), table, NULL, NULL, &resolved);
2771 else
2772 r = unit_env_printf(u, word, &resolved);
2773 if (r < 0) {
2774 log_syntax(unit, LOG_WARNING, filename, line, r,
2775 "Failed to resolve specifiers in %s, ignoring: %m", word);
2776 continue;
2777 }
2778
2779 if (!env_assignment_is_valid(resolved)) {
2780 log_syntax(unit, LOG_WARNING, filename, line, 0,
2781 "Invalid environment assignment, ignoring: %s", resolved);
2782 continue;
2783 }
2784
2785 r = strv_env_replace_consume(env, TAKE_PTR(resolved));
2786 if (r < 0)
2787 return log_error_errno(r, "Failed to update environment: %m");
2788 }
2789 }
2790
2791 int config_parse_pass_environ(
2792 const char *unit,
2793 const char *filename,
2794 unsigned line,
2795 const char *section,
2796 unsigned section_line,
2797 const char *lvalue,
2798 int ltype,
2799 const char *rvalue,
2800 void *data,
2801 void *userdata) {
2802
2803 _cleanup_strv_free_ char **n = NULL;
2804 const Unit *u = userdata;
2805 char*** passenv = ASSERT_PTR(data);
2806 size_t nlen = 0;
2807 int r;
2808
2809 assert(filename);
2810 assert(lvalue);
2811 assert(rvalue);
2812
2813 if (isempty(rvalue)) {
2814 /* Empty assignment resets the list */
2815 *passenv = strv_free(*passenv);
2816 return 0;
2817 }
2818
2819 for (const char *p = rvalue;;) {
2820 _cleanup_free_ char *word = NULL, *k = NULL;
2821
2822 r = extract_first_word(&p, &word, NULL, EXTRACT_UNQUOTE);
2823 if (r == -ENOMEM)
2824 return log_oom();
2825 if (r < 0) {
2826 log_syntax(unit, LOG_WARNING, filename, line, r,
2827 "Trailing garbage in %s, ignoring: %s", lvalue, rvalue);
2828 break;
2829 }
2830 if (r == 0)
2831 break;
2832
2833 if (u) {
2834 r = unit_env_printf(u, word, &k);
2835 if (r < 0) {
2836 log_syntax(unit, LOG_WARNING, filename, line, r,
2837 "Failed to resolve specifiers in %s, ignoring: %m", word);
2838 continue;
2839 }
2840 } else
2841 k = TAKE_PTR(word);
2842
2843 if (!env_name_is_valid(k)) {
2844 log_syntax(unit, LOG_WARNING, filename, line, 0,
2845 "Invalid environment name for %s, ignoring: %s", lvalue, k);
2846 continue;
2847 }
2848
2849 if (!GREEDY_REALLOC(n, nlen + 2))
2850 return log_oom();
2851
2852 n[nlen++] = TAKE_PTR(k);
2853 n[nlen] = NULL;
2854 }
2855
2856 if (n) {
2857 r = strv_extend_strv(passenv, n, true);
2858 if (r < 0)
2859 return log_oom();
2860 }
2861
2862 return 0;
2863 }
2864
2865 int config_parse_unset_environ(
2866 const char *unit,
2867 const char *filename,
2868 unsigned line,
2869 const char *section,
2870 unsigned section_line,
2871 const char *lvalue,
2872 int ltype,
2873 const char *rvalue,
2874 void *data,
2875 void *userdata) {
2876
2877 _cleanup_strv_free_ char **n = NULL;
2878 char*** unsetenv = ASSERT_PTR(data);
2879 const Unit *u = userdata;
2880 size_t nlen = 0;
2881 int r;
2882
2883 assert(filename);
2884 assert(lvalue);
2885 assert(rvalue);
2886
2887 if (isempty(rvalue)) {
2888 /* Empty assignment resets the list */
2889 *unsetenv = strv_free(*unsetenv);
2890 return 0;
2891 }
2892
2893 for (const char *p = rvalue;;) {
2894 _cleanup_free_ char *word = NULL, *k = NULL;
2895
2896 r = extract_first_word(&p, &word, NULL, EXTRACT_CUNESCAPE|EXTRACT_UNQUOTE);
2897 if (r == -ENOMEM)
2898 return log_oom();
2899 if (r < 0) {
2900 log_syntax(unit, LOG_WARNING, filename, line, r,
2901 "Trailing garbage in %s, ignoring: %s", lvalue, rvalue);
2902 break;
2903 }
2904 if (r == 0)
2905 break;
2906
2907 if (u) {
2908 r = unit_env_printf(u, word, &k);
2909 if (r < 0) {
2910 log_syntax(unit, LOG_WARNING, filename, line, r,
2911 "Failed to resolve unit specifiers in %s, ignoring: %m", word);
2912 continue;
2913 }
2914 } else
2915 k = TAKE_PTR(word);
2916
2917 if (!env_assignment_is_valid(k) && !env_name_is_valid(k)) {
2918 log_syntax(unit, LOG_WARNING, filename, line, 0,
2919 "Invalid environment name or assignment %s, ignoring: %s", lvalue, k);
2920 continue;
2921 }
2922
2923 if (!GREEDY_REALLOC(n, nlen + 2))
2924 return log_oom();
2925
2926 n[nlen++] = TAKE_PTR(k);
2927 n[nlen] = NULL;
2928 }
2929
2930 if (n) {
2931 r = strv_extend_strv(unsetenv, n, true);
2932 if (r < 0)
2933 return log_oom();
2934 }
2935
2936 return 0;
2937 }
2938
2939 int config_parse_log_extra_fields(
2940 const char *unit,
2941 const char *filename,
2942 unsigned line,
2943 const char *section,
2944 unsigned section_line,
2945 const char *lvalue,
2946 int ltype,
2947 const char *rvalue,
2948 void *data,
2949 void *userdata) {
2950
2951 ExecContext *c = ASSERT_PTR(data);
2952 const Unit *u = userdata;
2953 int r;
2954
2955 assert(filename);
2956 assert(lvalue);
2957 assert(rvalue);
2958
2959 if (isempty(rvalue)) {
2960 exec_context_free_log_extra_fields(c);
2961 return 0;
2962 }
2963
2964 for (const char *p = rvalue;;) {
2965 _cleanup_free_ char *word = NULL, *k = NULL;
2966 struct iovec *t;
2967 const char *eq;
2968
2969 r = extract_first_word(&p, &word, NULL, EXTRACT_CUNESCAPE|EXTRACT_UNQUOTE);
2970 if (r == -ENOMEM)
2971 return log_oom();
2972 if (r < 0) {
2973 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid syntax, ignoring: %s", rvalue);
2974 return 0;
2975 }
2976 if (r == 0)
2977 return 0;
2978
2979 r = unit_full_printf(u, word, &k);
2980 if (r < 0) {
2981 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", word);
2982 continue;
2983 }
2984
2985 eq = strchr(k, '=');
2986 if (!eq) {
2987 log_syntax(unit, LOG_WARNING, filename, line, 0, "Log field lacks '=' character, ignoring: %s", k);
2988 continue;
2989 }
2990
2991 if (!journal_field_valid(k, eq-k, false)) {
2992 log_syntax(unit, LOG_WARNING, filename, line, 0, "Log field name is invalid, ignoring: %s", k);
2993 continue;
2994 }
2995
2996 t = reallocarray(c->log_extra_fields, c->n_log_extra_fields+1, sizeof(struct iovec));
2997 if (!t)
2998 return log_oom();
2999
3000 c->log_extra_fields = t;
3001 c->log_extra_fields[c->n_log_extra_fields++] = IOVEC_MAKE_STRING(k);
3002
3003 k = NULL;
3004 }
3005 }
3006
3007 int config_parse_log_namespace(
3008 const char *unit,
3009 const char *filename,
3010 unsigned line,
3011 const char *section,
3012 unsigned section_line,
3013 const char *lvalue,
3014 int ltype,
3015 const char *rvalue,
3016 void *data,
3017 void *userdata) {
3018
3019 _cleanup_free_ char *k = NULL;
3020 ExecContext *c = ASSERT_PTR(data);
3021 const Unit *u = userdata;
3022 int r;
3023
3024 assert(filename);
3025 assert(lvalue);
3026 assert(rvalue);
3027
3028 if (isempty(rvalue)) {
3029 c->log_namespace = mfree(c->log_namespace);
3030 return 0;
3031 }
3032
3033 r = unit_full_printf_full(u, rvalue, NAME_MAX, &k);
3034 if (r < 0) {
3035 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", rvalue);
3036 return 0;
3037 }
3038
3039 if (!log_namespace_name_valid(k)) {
3040 log_syntax(unit, LOG_WARNING, filename, line, 0, "Specified log namespace name is not valid, ignoring: %s", k);
3041 return 0;
3042 }
3043
3044 free_and_replace(c->log_namespace, k);
3045 return 0;
3046 }
3047
3048 int config_parse_unit_condition_path(
3049 const char *unit,
3050 const char *filename,
3051 unsigned line,
3052 const char *section,
3053 unsigned section_line,
3054 const char *lvalue,
3055 int ltype,
3056 const char *rvalue,
3057 void *data,
3058 void *userdata) {
3059
3060 _cleanup_free_ char *p = NULL;
3061 Condition **list = ASSERT_PTR(data), *c;
3062 ConditionType t = ltype;
3063 bool trigger, negate;
3064 const Unit *u = userdata;
3065 int r;
3066
3067 assert(filename);
3068 assert(lvalue);
3069 assert(rvalue);
3070
3071 if (isempty(rvalue)) {
3072 /* Empty assignment resets the list */
3073 *list = condition_free_list(*list);
3074 return 0;
3075 }
3076
3077 trigger = rvalue[0] == '|';
3078 if (trigger)
3079 rvalue++;
3080
3081 negate = rvalue[0] == '!';
3082 if (negate)
3083 rvalue++;
3084
3085 r = unit_path_printf(u, rvalue, &p);
3086 if (r < 0) {
3087 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", rvalue);
3088 return 0;
3089 }
3090
3091 r = path_simplify_and_warn(p, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
3092 if (r < 0)
3093 return 0;
3094
3095 c = condition_new(t, p, trigger, negate);
3096 if (!c)
3097 return log_oom();
3098
3099 LIST_PREPEND(conditions, *list, c);
3100 return 0;
3101 }
3102
3103 int config_parse_unit_condition_string(
3104 const char *unit,
3105 const char *filename,
3106 unsigned line,
3107 const char *section,
3108 unsigned section_line,
3109 const char *lvalue,
3110 int ltype,
3111 const char *rvalue,
3112 void *data,
3113 void *userdata) {
3114
3115 _cleanup_free_ char *s = NULL;
3116 Condition **list = ASSERT_PTR(data), *c;
3117 ConditionType t = ltype;
3118 bool trigger, negate;
3119 const Unit *u = userdata;
3120 int r;
3121
3122 assert(filename);
3123 assert(lvalue);
3124 assert(rvalue);
3125
3126 if (isempty(rvalue)) {
3127 /* Empty assignment resets the list */
3128 *list = condition_free_list(*list);
3129 return 0;
3130 }
3131
3132 trigger = *rvalue == '|';
3133 if (trigger)
3134 rvalue += 1 + strspn(rvalue + 1, WHITESPACE);
3135
3136 negate = *rvalue == '!';
3137 if (negate)
3138 rvalue += 1 + strspn(rvalue + 1, WHITESPACE);
3139
3140 r = unit_full_printf(u, rvalue, &s);
3141 if (r < 0) {
3142 log_syntax(unit, LOG_WARNING, filename, line, r,
3143 "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue);
3144 return 0;
3145 }
3146
3147 c = condition_new(t, s, trigger, negate);
3148 if (!c)
3149 return log_oom();
3150
3151 LIST_PREPEND(conditions, *list, c);
3152 return 0;
3153 }
3154
3155 int config_parse_unit_requires_mounts_for(
3156 const char *unit,
3157 const char *filename,
3158 unsigned line,
3159 const char *section,
3160 unsigned section_line,
3161 const char *lvalue,
3162 int ltype,
3163 const char *rvalue,
3164 void *data,
3165 void *userdata) {
3166
3167 Unit *u = userdata;
3168 int r;
3169
3170 assert(filename);
3171 assert(lvalue);
3172 assert(rvalue);
3173 assert(data);
3174
3175 for (const char *p = rvalue;;) {
3176 _cleanup_free_ char *word = NULL, *resolved = NULL;
3177
3178 r = extract_first_word(&p, &word, NULL, EXTRACT_UNQUOTE);
3179 if (r == -ENOMEM)
3180 return log_oom();
3181 if (r < 0) {
3182 log_syntax(unit, LOG_WARNING, filename, line, r,
3183 "Invalid syntax, ignoring: %s", rvalue);
3184 return 0;
3185 }
3186 if (r == 0)
3187 return 0;
3188
3189 r = unit_path_printf(u, word, &resolved);
3190 if (r < 0) {
3191 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", word);
3192 continue;
3193 }
3194
3195 r = path_simplify_and_warn(resolved, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
3196 if (r < 0)
3197 continue;
3198
3199 r = unit_require_mounts_for(u, resolved, UNIT_DEPENDENCY_FILE);
3200 if (r < 0) {
3201 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to add required mount '%s', ignoring: %m", resolved);
3202 continue;
3203 }
3204 }
3205 }
3206
3207 int config_parse_documentation(
3208 const char *unit,
3209 const char *filename,
3210 unsigned line,
3211 const char *section,
3212 unsigned section_line,
3213 const char *lvalue,
3214 int ltype,
3215 const char *rvalue,
3216 void *data,
3217 void *userdata) {
3218
3219 Unit *u = ASSERT_PTR(userdata);
3220 int r;
3221 char **a, **b;
3222
3223 assert(filename);
3224 assert(lvalue);
3225 assert(rvalue);
3226
3227 if (isempty(rvalue)) {
3228 /* Empty assignment resets the list */
3229 u->documentation = strv_free(u->documentation);
3230 return 0;
3231 }
3232
3233 r = config_parse_unit_strv_printf(unit, filename, line, section, section_line, lvalue, ltype,
3234 rvalue, data, userdata);
3235 if (r < 0)
3236 return r;
3237
3238 for (a = b = u->documentation; a && *a; a++) {
3239
3240 if (documentation_url_is_valid(*a))
3241 *(b++) = *a;
3242 else {
3243 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid URL, ignoring: %s", *a);
3244 free(*a);
3245 }
3246 }
3247 if (b)
3248 *b = NULL;
3249
3250 return 0;
3251 }
3252
3253 #if HAVE_SECCOMP
3254 int config_parse_syscall_filter(
3255 const char *unit,
3256 const char *filename,
3257 unsigned line,
3258 const char *section,
3259 unsigned section_line,
3260 const char *lvalue,
3261 int ltype,
3262 const char *rvalue,
3263 void *data,
3264 void *userdata) {
3265
3266 ExecContext *c = data;
3267 _unused_ const Unit *u = ASSERT_PTR(userdata);
3268 bool invert = false;
3269 int r;
3270
3271 assert(filename);
3272 assert(lvalue);
3273 assert(rvalue);
3274
3275 if (isempty(rvalue)) {
3276 /* Empty assignment resets the list */
3277 c->syscall_filter = hashmap_free(c->syscall_filter);
3278 c->syscall_allow_list = false;
3279 return 0;
3280 }
3281
3282 if (rvalue[0] == '~') {
3283 invert = true;
3284 rvalue++;
3285 }
3286
3287 if (!c->syscall_filter) {
3288 c->syscall_filter = hashmap_new(NULL);
3289 if (!c->syscall_filter)
3290 return log_oom();
3291
3292 if (invert)
3293 /* Allow everything but the ones listed */
3294 c->syscall_allow_list = false;
3295 else {
3296 /* Allow nothing but the ones listed */
3297 c->syscall_allow_list = true;
3298
3299 /* Accept default syscalls if we are on an allow_list */
3300 r = seccomp_parse_syscall_filter(
3301 "@default", -1, c->syscall_filter,
3302 SECCOMP_PARSE_PERMISSIVE|SECCOMP_PARSE_ALLOW_LIST,
3303 unit,
3304 NULL, 0);
3305 if (r < 0)
3306 return r;
3307 }
3308 }
3309
3310 for (const char *p = rvalue;;) {
3311 _cleanup_free_ char *word = NULL, *name = NULL;
3312 int num;
3313
3314 r = extract_first_word(&p, &word, NULL, 0);
3315 if (r == -ENOMEM)
3316 return log_oom();
3317 if (r < 0) {
3318 log_syntax(unit, LOG_WARNING, filename, line, r,
3319 "Invalid syntax, ignoring: %s", rvalue);
3320 return 0;
3321 }
3322 if (r == 0)
3323 return 0;
3324
3325 r = parse_syscall_and_errno(word, &name, &num);
3326 if (r < 0) {
3327 log_syntax(unit, LOG_WARNING, filename, line, r,
3328 "Failed to parse syscall:errno, ignoring: %s", word);
3329 continue;
3330 }
3331 if (!invert && num >= 0) {
3332 log_syntax(unit, LOG_WARNING, filename, line, 0,
3333 "Allow-listed system calls cannot take error number, ignoring: %s", word);
3334 continue;
3335 }
3336
3337 r = seccomp_parse_syscall_filter(
3338 name, num, c->syscall_filter,
3339 SECCOMP_PARSE_LOG|SECCOMP_PARSE_PERMISSIVE|
3340 (invert ? SECCOMP_PARSE_INVERT : 0)|
3341 (c->syscall_allow_list ? SECCOMP_PARSE_ALLOW_LIST : 0),
3342 unit, filename, line);
3343 if (r < 0)
3344 return r;
3345 }
3346 }
3347
3348 int config_parse_syscall_log(
3349 const char *unit,
3350 const char *filename,
3351 unsigned line,
3352 const char *section,
3353 unsigned section_line,
3354 const char *lvalue,
3355 int ltype,
3356 const char *rvalue,
3357 void *data,
3358 void *userdata) {
3359
3360 ExecContext *c = data;
3361 _unused_ const Unit *u = ASSERT_PTR(userdata);
3362 bool invert = false;
3363 const char *p;
3364 int r;
3365
3366 assert(filename);
3367 assert(lvalue);
3368 assert(rvalue);
3369
3370 if (isempty(rvalue)) {
3371 /* Empty assignment resets the list */
3372 c->syscall_log = hashmap_free(c->syscall_log);
3373 c->syscall_log_allow_list = false;
3374 return 0;
3375 }
3376
3377 if (rvalue[0] == '~') {
3378 invert = true;
3379 rvalue++;
3380 }
3381
3382 if (!c->syscall_log) {
3383 c->syscall_log = hashmap_new(NULL);
3384 if (!c->syscall_log)
3385 return log_oom();
3386
3387 if (invert)
3388 /* Log everything but the ones listed */
3389 c->syscall_log_allow_list = false;
3390 else
3391 /* Log nothing but the ones listed */
3392 c->syscall_log_allow_list = true;
3393 }
3394
3395 p = rvalue;
3396 for (;;) {
3397 _cleanup_free_ char *word = NULL;
3398
3399 r = extract_first_word(&p, &word, NULL, 0);
3400 if (r == -ENOMEM)
3401 return log_oom();
3402 if (r < 0) {
3403 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid syntax, ignoring: %s", rvalue);
3404 return 0;
3405 }
3406 if (r == 0)
3407 return 0;
3408
3409 r = seccomp_parse_syscall_filter(
3410 word, -1, c->syscall_log,
3411 SECCOMP_PARSE_LOG|SECCOMP_PARSE_PERMISSIVE|
3412 (invert ? SECCOMP_PARSE_INVERT : 0)|
3413 (c->syscall_log_allow_list ? SECCOMP_PARSE_ALLOW_LIST : 0),
3414 unit, filename, line);
3415 if (r < 0)
3416 return r;
3417 }
3418 }
3419
3420 int config_parse_syscall_archs(
3421 const char *unit,
3422 const char *filename,
3423 unsigned line,
3424 const char *section,
3425 unsigned section_line,
3426 const char *lvalue,
3427 int ltype,
3428 const char *rvalue,
3429 void *data,
3430 void *userdata) {
3431
3432 Set **archs = data;
3433 int r;
3434
3435 if (isempty(rvalue)) {
3436 *archs = set_free(*archs);
3437 return 0;
3438 }
3439
3440 for (const char *p = rvalue;;) {
3441 _cleanup_free_ char *word = NULL;
3442 uint32_t a;
3443
3444 r = extract_first_word(&p, &word, NULL, EXTRACT_UNQUOTE);
3445 if (r == -ENOMEM)
3446 return log_oom();
3447 if (r < 0) {
3448 log_syntax(unit, LOG_WARNING, filename, line, r,
3449 "Invalid syntax, ignoring: %s", rvalue);
3450 return 0;
3451 }
3452 if (r == 0)
3453 return 0;
3454
3455 r = seccomp_arch_from_string(word, &a);
3456 if (r < 0) {
3457 log_syntax(unit, LOG_WARNING, filename, line, r,
3458 "Failed to parse system call architecture \"%s\", ignoring: %m", word);
3459 continue;
3460 }
3461
3462 r = set_ensure_put(archs, NULL, UINT32_TO_PTR(a + 1));
3463 if (r < 0)
3464 return log_oom();
3465 }
3466 }
3467
3468 int config_parse_syscall_errno(
3469 const char *unit,
3470 const char *filename,
3471 unsigned line,
3472 const char *section,
3473 unsigned section_line,
3474 const char *lvalue,
3475 int ltype,
3476 const char *rvalue,
3477 void *data,
3478 void *userdata) {
3479
3480 ExecContext *c = data;
3481 int e;
3482
3483 assert(filename);
3484 assert(lvalue);
3485 assert(rvalue);
3486
3487 if (isempty(rvalue) || streq(rvalue, "kill")) {
3488 /* Empty assignment resets to KILL */
3489 c->syscall_errno = SECCOMP_ERROR_NUMBER_KILL;
3490 return 0;
3491 }
3492
3493 e = parse_errno(rvalue);
3494 if (e < 0) {
3495 log_syntax(unit, LOG_WARNING, filename, line, e, "Failed to parse error number, ignoring: %s", rvalue);
3496 return 0;
3497 }
3498 if (e == 0) {
3499 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid error number, ignoring: %s", rvalue);
3500 return 0;
3501 }
3502
3503 c->syscall_errno = e;
3504 return 0;
3505 }
3506
3507 int config_parse_address_families(
3508 const char *unit,
3509 const char *filename,
3510 unsigned line,
3511 const char *section,
3512 unsigned section_line,
3513 const char *lvalue,
3514 int ltype,
3515 const char *rvalue,
3516 void *data,
3517 void *userdata) {
3518
3519 ExecContext *c = data;
3520 bool invert = false;
3521 int r;
3522
3523 assert(filename);
3524 assert(lvalue);
3525 assert(rvalue);
3526
3527 if (isempty(rvalue)) {
3528 /* Empty assignment resets the list */
3529 c->address_families = set_free(c->address_families);
3530 c->address_families_allow_list = false;
3531 return 0;
3532 }
3533
3534 if (streq(rvalue, "none")) {
3535 /* Forbid all address families. */
3536 c->address_families = set_free(c->address_families);
3537 c->address_families_allow_list = true;
3538 return 0;
3539 }
3540
3541 if (rvalue[0] == '~') {
3542 invert = true;
3543 rvalue++;
3544 }
3545
3546 if (!c->address_families) {
3547 c->address_families = set_new(NULL);
3548 if (!c->address_families)
3549 return log_oom();
3550
3551 c->address_families_allow_list = !invert;
3552 }
3553
3554 for (const char *p = rvalue;;) {
3555 _cleanup_free_ char *word = NULL;
3556 int af;
3557
3558 r = extract_first_word(&p, &word, NULL, EXTRACT_UNQUOTE);
3559 if (r == -ENOMEM)
3560 return log_oom();
3561 if (r < 0) {
3562 log_syntax(unit, LOG_WARNING, filename, line, r,
3563 "Invalid syntax, ignoring: %s", rvalue);
3564 return 0;
3565 }
3566 if (r == 0)
3567 return 0;
3568
3569 af = af_from_name(word);
3570 if (af < 0) {
3571 log_syntax(unit, LOG_WARNING, filename, line, af,
3572 "Failed to parse address family, ignoring: %s", word);
3573 continue;
3574 }
3575
3576 /* If we previously wanted to forbid an address family and now
3577 * we want to allow it, then just remove it from the list.
3578 */
3579 if (!invert == c->address_families_allow_list) {
3580 r = set_put(c->address_families, INT_TO_PTR(af));
3581 if (r < 0)
3582 return log_oom();
3583 } else
3584 set_remove(c->address_families, INT_TO_PTR(af));
3585 }
3586 }
3587
3588 int config_parse_restrict_namespaces(
3589 const char *unit,
3590 const char *filename,
3591 unsigned line,
3592 const char *section,
3593 unsigned section_line,
3594 const char *lvalue,
3595 int ltype,
3596 const char *rvalue,
3597 void *data,
3598 void *userdata) {
3599
3600 ExecContext *c = data;
3601 unsigned long flags;
3602 bool invert = false;
3603 int r;
3604
3605 if (isempty(rvalue)) {
3606 /* Reset to the default. */
3607 c->restrict_namespaces = NAMESPACE_FLAGS_INITIAL;
3608 return 0;
3609 }
3610
3611 /* Boolean parameter ignores the previous settings */
3612 r = parse_boolean(rvalue);
3613 if (r > 0) {
3614 c->restrict_namespaces = 0;
3615 return 0;
3616 } else if (r == 0) {
3617 c->restrict_namespaces = NAMESPACE_FLAGS_ALL;
3618 return 0;
3619 }
3620
3621 if (rvalue[0] == '~') {
3622 invert = true;
3623 rvalue++;
3624 }
3625
3626 /* Not a boolean argument, in this case it's a list of namespace types. */
3627 r = namespace_flags_from_string(rvalue, &flags);
3628 if (r < 0) {
3629 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse namespace type string, ignoring: %s", rvalue);
3630 return 0;
3631 }
3632
3633 if (c->restrict_namespaces == NAMESPACE_FLAGS_INITIAL)
3634 /* Initial assignment. Just set the value. */
3635 c->restrict_namespaces = invert ? (~flags) & NAMESPACE_FLAGS_ALL : flags;
3636 else
3637 /* Merge the value with the previous one. */
3638 SET_FLAG(c->restrict_namespaces, flags, !invert);
3639
3640 return 0;
3641 }
3642 #endif
3643
3644 int config_parse_restrict_filesystems(
3645 const char *unit,
3646 const char *filename,
3647 unsigned line,
3648 const char *section,
3649 unsigned section_line,
3650 const char *lvalue,
3651 int ltype,
3652 const char *rvalue,
3653 void *data,
3654 void *userdata) {
3655 ExecContext *c = ASSERT_PTR(data);
3656 bool invert = false;
3657 int r;
3658
3659 assert(filename);
3660 assert(lvalue);
3661 assert(rvalue);
3662
3663 if (isempty(rvalue)) {
3664 /* Empty assignment resets the list */
3665 c->restrict_filesystems = set_free_free(c->restrict_filesystems);
3666 c->restrict_filesystems_allow_list = false;
3667 return 0;
3668 }
3669
3670 if (rvalue[0] == '~') {
3671 invert = true;
3672 rvalue++;
3673 }
3674
3675 if (!c->restrict_filesystems) {
3676 if (invert)
3677 /* Allow everything but the ones listed */
3678 c->restrict_filesystems_allow_list = false;
3679 else
3680 /* Allow nothing but the ones listed */
3681 c->restrict_filesystems_allow_list = true;
3682 }
3683
3684 for (const char *p = rvalue;;) {
3685 _cleanup_free_ char *word = NULL;
3686
3687 r = extract_first_word(&p, &word, NULL, EXTRACT_UNQUOTE);
3688 if (r == 0)
3689 break;
3690 if (r == -ENOMEM)
3691 return log_oom();
3692 if (r < 0) {
3693 log_syntax(unit, LOG_WARNING, filename, line, r,
3694 "Trailing garbage in %s, ignoring: %s", lvalue, rvalue);
3695 break;
3696 }
3697
3698 r = lsm_bpf_parse_filesystem(
3699 word,
3700 &c->restrict_filesystems,
3701 FILESYSTEM_PARSE_LOG|
3702 (invert ? FILESYSTEM_PARSE_INVERT : 0)|
3703 (c->restrict_filesystems_allow_list ? FILESYSTEM_PARSE_ALLOW_LIST : 0),
3704 unit, filename, line);
3705
3706 if (r < 0)
3707 return r;
3708 }
3709
3710 return 0;
3711 }
3712
3713 int config_parse_unit_slice(
3714 const char *unit,
3715 const char *filename,
3716 unsigned line,
3717 const char *section,
3718 unsigned section_line,
3719 const char *lvalue,
3720 int ltype,
3721 const char *rvalue,
3722 void *data,
3723 void *userdata) {
3724
3725 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
3726 _cleanup_free_ char *k = NULL;
3727 Unit *u = userdata, *slice;
3728 int r;
3729
3730 assert(filename);
3731 assert(lvalue);
3732 assert(rvalue);
3733 assert(u);
3734
3735 r = unit_name_printf(u, rvalue, &k);
3736 if (r < 0) {
3737 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", rvalue);
3738 return 0;
3739 }
3740
3741 r = manager_load_unit(u->manager, k, NULL, &error, &slice);
3742 if (r < 0) {
3743 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to load slice unit %s, ignoring: %s", k, bus_error_message(&error, r));
3744 return 0;
3745 }
3746
3747 r = unit_set_slice(u, slice);
3748 if (r < 0) {
3749 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to assign slice %s to unit %s, ignoring: %m", slice->id, u->id);
3750 return 0;
3751 }
3752
3753 return 0;
3754 }
3755
3756 int config_parse_cpu_quota(
3757 const char *unit,
3758 const char *filename,
3759 unsigned line,
3760 const char *section,
3761 unsigned section_line,
3762 const char *lvalue,
3763 int ltype,
3764 const char *rvalue,
3765 void *data,
3766 void *userdata) {
3767
3768 CGroupContext *c = data;
3769 int r;
3770
3771 assert(filename);
3772 assert(lvalue);
3773 assert(rvalue);
3774
3775 if (isempty(rvalue)) {
3776 c->cpu_quota_per_sec_usec = USEC_INFINITY;
3777 return 0;
3778 }
3779
3780 r = parse_permyriad_unbounded(rvalue);
3781 if (r <= 0) {
3782 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid CPU quota '%s', ignoring.", rvalue);
3783 return 0;
3784 }
3785
3786 c->cpu_quota_per_sec_usec = ((usec_t) r * USEC_PER_SEC) / 10000U;
3787 return 0;
3788 }
3789
3790 int config_parse_allowed_cpuset(
3791 const char *unit,
3792 const char *filename,
3793 unsigned line,
3794 const char *section,
3795 unsigned section_line,
3796 const char *lvalue,
3797 int ltype,
3798 const char *rvalue,
3799 void *data,
3800 void *userdata) {
3801
3802 CPUSet *c = data;
3803
3804 (void) parse_cpu_set_extend(rvalue, c, true, unit, filename, line, lvalue);
3805 return 0;
3806 }
3807
3808 int config_parse_memory_limit(
3809 const char *unit,
3810 const char *filename,
3811 unsigned line,
3812 const char *section,
3813 unsigned section_line,
3814 const char *lvalue,
3815 int ltype,
3816 const char *rvalue,
3817 void *data,
3818 void *userdata) {
3819
3820 CGroupContext *c = data;
3821 uint64_t bytes = CGROUP_LIMIT_MAX;
3822 int r;
3823
3824 if (isempty(rvalue) && STR_IN_SET(lvalue, "DefaultMemoryLow",
3825 "DefaultMemoryMin",
3826 "MemoryLow",
3827 "StartupMemoryLow",
3828 "MemoryMin"))
3829 bytes = CGROUP_LIMIT_MIN;
3830 else if (!isempty(rvalue) && !streq(rvalue, "infinity")) {
3831
3832 r = parse_permyriad(rvalue);
3833 if (r < 0) {
3834 r = parse_size(rvalue, 1024, &bytes);
3835 if (r < 0) {
3836 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid memory limit '%s', ignoring: %m", rvalue);
3837 return 0;
3838 }
3839 } else
3840 bytes = physical_memory_scale(r, 10000U);
3841
3842 if (bytes >= UINT64_MAX ||
3843 (bytes <= 0 && !STR_IN_SET(lvalue,
3844 "MemorySwapMax",
3845 "StartupMemorySwapMax",
3846 "MemoryZSwapMax",
3847 "StartupMemoryZSwapMax",
3848 "MemoryLow",
3849 "StartupMemoryLow",
3850 "MemoryMin",
3851 "DefaultMemoryLow",
3852 "DefaultstartupMemoryLow",
3853 "DefaultMemoryMin"))) {
3854 log_syntax(unit, LOG_WARNING, filename, line, 0, "Memory limit '%s' out of range, ignoring.", rvalue);
3855 return 0;
3856 }
3857 }
3858
3859 if (streq(lvalue, "DefaultMemoryLow")) {
3860 c->default_memory_low = bytes;
3861 c->default_memory_low_set = true;
3862 } else if (streq(lvalue, "DefaultStartupMemoryLow")) {
3863 c->default_startup_memory_low = bytes;
3864 c->default_startup_memory_low_set = true;
3865 } else if (streq(lvalue, "DefaultMemoryMin")) {
3866 c->default_memory_min = bytes;
3867 c->default_memory_min_set = true;
3868 } else if (streq(lvalue, "MemoryMin")) {
3869 c->memory_min = bytes;
3870 c->memory_min_set = true;
3871 } else if (streq(lvalue, "MemoryLow")) {
3872 c->memory_low = bytes;
3873 c->memory_low_set = true;
3874 } else if (streq(lvalue, "StartupMemoryLow")) {
3875 c->startup_memory_low = bytes;
3876 c->startup_memory_low_set = true;
3877 } else if (streq(lvalue, "MemoryHigh"))
3878 c->memory_high = bytes;
3879 else if (streq(lvalue, "StartupMemoryHigh")) {
3880 c->startup_memory_high = bytes;
3881 c->startup_memory_high_set = true;
3882 } else if (streq(lvalue, "MemoryMax"))
3883 c->memory_max = bytes;
3884 else if (streq(lvalue, "StartupMemoryMax")) {
3885 c->startup_memory_max = bytes;
3886 c->startup_memory_max_set = true;
3887 } else if (streq(lvalue, "MemorySwapMax"))
3888 c->memory_swap_max = bytes;
3889 else if (streq(lvalue, "StartupMemorySwapMax")) {
3890 c->startup_memory_swap_max = bytes;
3891 c->startup_memory_swap_max_set = true;
3892 } else if (streq(lvalue, "MemoryZSwapMax"))
3893 c->memory_zswap_max = bytes;
3894 else if (streq(lvalue, "StartupMemoryZSwapMax")) {
3895 c->startup_memory_zswap_max = bytes;
3896 c->startup_memory_zswap_max_set = true;
3897 } else if (streq(lvalue, "MemoryLimit")) {
3898 log_syntax(unit, LOG_WARNING, filename, line, 0,
3899 "Unit uses MemoryLimit=; please use MemoryMax= instead. Support for MemoryLimit= will be removed soon.");
3900 c->memory_limit = bytes;
3901 } else
3902 return -EINVAL;
3903
3904 return 0;
3905 }
3906
3907 int config_parse_tasks_max(
3908 const char *unit,
3909 const char *filename,
3910 unsigned line,
3911 const char *section,
3912 unsigned section_line,
3913 const char *lvalue,
3914 int ltype,
3915 const char *rvalue,
3916 void *data,
3917 void *userdata) {
3918
3919 const Unit *u = userdata;
3920 TasksMax *tasks_max = data;
3921 uint64_t v;
3922 int r;
3923
3924 if (isempty(rvalue)) {
3925 *tasks_max = u ? u->manager->defaults.tasks_max : TASKS_MAX_UNSET;
3926 return 0;
3927 }
3928
3929 if (streq(rvalue, "infinity")) {
3930 *tasks_max = TASKS_MAX_UNSET;
3931 return 0;
3932 }
3933
3934 r = parse_permyriad(rvalue);
3935 if (r >= 0)
3936 *tasks_max = (TasksMax) { r, 10000U }; /* r‱ */
3937 else {
3938 r = safe_atou64(rvalue, &v);
3939 if (r < 0) {
3940 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid maximum tasks value '%s', ignoring: %m", rvalue);
3941 return 0;
3942 }
3943
3944 if (v <= 0 || v >= UINT64_MAX) {
3945 log_syntax(unit, LOG_WARNING, filename, line, 0, "Maximum tasks value '%s' out of range, ignoring.", rvalue);
3946 return 0;
3947 }
3948
3949 *tasks_max = (TasksMax) { v };
3950 }
3951
3952 return 0;
3953 }
3954
3955 int config_parse_delegate(
3956 const char *unit,
3957 const char *filename,
3958 unsigned line,
3959 const char *section,
3960 unsigned section_line,
3961 const char *lvalue,
3962 int ltype,
3963 const char *rvalue,
3964 void *data,
3965 void *userdata) {
3966
3967 CGroupContext *c = data;
3968 UnitType t;
3969 int r;
3970
3971 t = unit_name_to_type(unit);
3972 assert(t != _UNIT_TYPE_INVALID);
3973
3974 if (!unit_vtable[t]->can_delegate) {
3975 log_syntax(unit, LOG_WARNING, filename, line, 0, "Delegate= setting not supported for this unit type, ignoring.");
3976 return 0;
3977 }
3978
3979 /* We either accept a boolean value, which may be used to turn on delegation for all controllers, or
3980 * turn it off for all. Or it takes a list of controller names, in which case we add the specified
3981 * controllers to the mask to delegate. Delegate= enables delegation without any controllers. */
3982
3983 if (isempty(rvalue)) {
3984 /* An empty string resets controllers and sets Delegate=yes. */
3985 c->delegate = true;
3986 c->delegate_controllers = 0;
3987 return 0;
3988 }
3989
3990 r = parse_boolean(rvalue);
3991 if (r < 0) {
3992 CGroupMask mask = 0;
3993
3994 for (const char *p = rvalue;;) {
3995 _cleanup_free_ char *word = NULL;
3996 CGroupController cc;
3997
3998 r = extract_first_word(&p, &word, NULL, EXTRACT_UNQUOTE);
3999 if (r == -ENOMEM)
4000 return log_oom();
4001 if (r < 0) {
4002 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid syntax, ignoring: %s", rvalue);
4003 return 0;
4004 }
4005 if (r == 0)
4006 break;
4007
4008 cc = cgroup_controller_from_string(word);
4009 if (cc < 0) {
4010 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid controller name '%s', ignoring", word);
4011 continue;
4012 }
4013
4014 mask |= CGROUP_CONTROLLER_TO_MASK(cc);
4015 }
4016
4017 c->delegate = true;
4018 c->delegate_controllers |= mask;
4019
4020 } else if (r > 0) {
4021 c->delegate = true;
4022 c->delegate_controllers = _CGROUP_MASK_ALL;
4023 } else {
4024 c->delegate = false;
4025 c->delegate_controllers = 0;
4026 }
4027
4028 return 0;
4029 }
4030
4031 int config_parse_delegate_subgroup(
4032 const char *unit,
4033 const char *filename,
4034 unsigned line,
4035 const char *section,
4036 unsigned section_line,
4037 const char *lvalue,
4038 int ltype,
4039 const char *rvalue,
4040 void *data,
4041 void *userdata) {
4042
4043 CGroupContext *c = ASSERT_PTR(data);
4044 UnitType t;
4045
4046 t = unit_name_to_type(unit);
4047 assert(t >= 0);
4048
4049 if (!unit_vtable[t]->can_delegate) {
4050 log_syntax(unit, LOG_WARNING, filename, line, 0, "DelegateSubgroup= setting not supported for this unit type, ignoring.");
4051 return 0;
4052 }
4053
4054 if (isempty(rvalue)) {
4055 c->delegate_subgroup = mfree(c->delegate_subgroup);
4056 return 0;
4057 }
4058
4059 if (cg_needs_escape(rvalue)) { /* Insist that specified names don't need escaping */
4060 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid control group name, ignoring: %s", rvalue);
4061 return 0;
4062 }
4063
4064 return free_and_strdup_warn(&c->delegate_subgroup, rvalue);
4065 }
4066
4067 int config_parse_managed_oom_mode(
4068 const char *unit,
4069 const char *filename,
4070 unsigned line,
4071 const char *section,
4072 unsigned section_line,
4073 const char *lvalue,
4074 int ltype,
4075 const char *rvalue,
4076 void *data,
4077 void *userdata) {
4078
4079 ManagedOOMMode *mode = data, m;
4080 UnitType t;
4081
4082 t = unit_name_to_type(unit);
4083 assert(t != _UNIT_TYPE_INVALID);
4084
4085 if (!unit_vtable[t]->can_set_managed_oom)
4086 return log_syntax(unit, LOG_WARNING, filename, line, 0, "%s= is not supported for this unit type, ignoring.", lvalue);
4087
4088 if (isempty(rvalue)) {
4089 *mode = MANAGED_OOM_AUTO;
4090 return 0;
4091 }
4092
4093 m = managed_oom_mode_from_string(rvalue);
4094 if (m < 0) {
4095 log_syntax(unit, LOG_WARNING, filename, line, m, "Invalid syntax, ignoring: %s", rvalue);
4096 return 0;
4097 }
4098
4099 *mode = m;
4100 return 0;
4101 }
4102
4103 int config_parse_managed_oom_mem_pressure_limit(
4104 const char *unit,
4105 const char *filename,
4106 unsigned line,
4107 const char *section,
4108 unsigned section_line,
4109 const char *lvalue,
4110 int ltype,
4111 const char *rvalue,
4112 void *data,
4113 void *userdata) {
4114
4115 uint32_t *limit = data;
4116 UnitType t;
4117 int r;
4118
4119 t = unit_name_to_type(unit);
4120 assert(t != _UNIT_TYPE_INVALID);
4121
4122 if (!unit_vtable[t]->can_set_managed_oom)
4123 return log_syntax(unit, LOG_WARNING, filename, line, 0, "%s= is not supported for this unit type, ignoring.", lvalue);
4124
4125 if (isempty(rvalue)) {
4126 *limit = 0;
4127 return 0;
4128 }
4129
4130 r = parse_permyriad(rvalue);
4131 if (r < 0) {
4132 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse memory pressure limit value, ignoring: %s", rvalue);
4133 return 0;
4134 }
4135
4136 /* Normalize to 2^32-1 == 100% */
4137 *limit = UINT32_SCALE_FROM_PERMYRIAD(r);
4138 return 0;
4139 }
4140
4141 int config_parse_device_allow(
4142 const char *unit,
4143 const char *filename,
4144 unsigned line,
4145 const char *section,
4146 unsigned section_line,
4147 const char *lvalue,
4148 int ltype,
4149 const char *rvalue,
4150 void *data,
4151 void *userdata) {
4152
4153 _cleanup_free_ char *path = NULL, *resolved = NULL;
4154 CGroupContext *c = data;
4155 const char *p = rvalue;
4156 int r;
4157
4158 if (isempty(rvalue)) {
4159 while (c->device_allow)
4160 cgroup_context_free_device_allow(c, c->device_allow);
4161
4162 return 0;
4163 }
4164
4165 r = extract_first_word(&p, &path, NULL, EXTRACT_UNQUOTE);
4166 if (r == -ENOMEM)
4167 return log_oom();
4168 if (r <= 0) {
4169 log_syntax(unit, LOG_WARNING, filename, line, r,
4170 "Failed to extract device path and rights from '%s', ignoring.", rvalue);
4171 return 0;
4172 }
4173
4174 r = unit_path_printf(userdata, path, &resolved);
4175 if (r < 0) {
4176 log_syntax(unit, LOG_WARNING, filename, line, r,
4177 "Failed to resolve unit specifiers in '%s', ignoring: %m", path);
4178 return 0;
4179 }
4180
4181 if (!STARTSWITH_SET(resolved, "block-", "char-")) {
4182
4183 r = path_simplify_and_warn(resolved, 0, unit, filename, line, lvalue);
4184 if (r < 0)
4185 return 0;
4186
4187 if (!valid_device_node_path(resolved)) {
4188 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid device node path '%s', ignoring.", resolved);
4189 return 0;
4190 }
4191 }
4192
4193 if (!isempty(p) && !in_charset(p, "rwm")) {
4194 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid device rights '%s', ignoring.", p);
4195 return 0;
4196 }
4197
4198 return cgroup_add_device_allow(c, resolved, p);
4199 }
4200
4201 int config_parse_io_device_weight(
4202 const char *unit,
4203 const char *filename,
4204 unsigned line,
4205 const char *section,
4206 unsigned section_line,
4207 const char *lvalue,
4208 int ltype,
4209 const char *rvalue,
4210 void *data,
4211 void *userdata) {
4212
4213 _cleanup_free_ char *path = NULL, *resolved = NULL;
4214 CGroupIODeviceWeight *w;
4215 CGroupContext *c = data;
4216 const char *p = ASSERT_PTR(rvalue);
4217 uint64_t u;
4218 int r;
4219
4220 assert(filename);
4221 assert(lvalue);
4222
4223 if (isempty(rvalue)) {
4224 while (c->io_device_weights)
4225 cgroup_context_free_io_device_weight(c, c->io_device_weights);
4226
4227 return 0;
4228 }
4229
4230 r = extract_first_word(&p, &path, NULL, EXTRACT_UNQUOTE);
4231 if (r == -ENOMEM)
4232 return log_oom();
4233 if (r < 0) {
4234 log_syntax(unit, LOG_WARNING, filename, line, r,
4235 "Failed to extract device path and weight from '%s', ignoring.", rvalue);
4236 return 0;
4237 }
4238 if (r == 0 || isempty(p)) {
4239 log_syntax(unit, LOG_WARNING, filename, line, 0,
4240 "Invalid device path or weight specified in '%s', ignoring.", rvalue);
4241 return 0;
4242 }
4243
4244 r = unit_path_printf(userdata, path, &resolved);
4245 if (r < 0) {
4246 log_syntax(unit, LOG_WARNING, filename, line, r,
4247 "Failed to resolve unit specifiers in '%s', ignoring: %m", path);
4248 return 0;
4249 }
4250
4251 r = path_simplify_and_warn(resolved, 0, unit, filename, line, lvalue);
4252 if (r < 0)
4253 return 0;
4254
4255 r = cg_weight_parse(p, &u);
4256 if (r < 0) {
4257 log_syntax(unit, LOG_WARNING, filename, line, r, "IO weight '%s' invalid, ignoring: %m", p);
4258 return 0;
4259 }
4260
4261 assert(u != CGROUP_WEIGHT_INVALID);
4262
4263 w = new0(CGroupIODeviceWeight, 1);
4264 if (!w)
4265 return log_oom();
4266
4267 w->path = TAKE_PTR(resolved);
4268 w->weight = u;
4269
4270 LIST_PREPEND(device_weights, c->io_device_weights, w);
4271 return 0;
4272 }
4273
4274 int config_parse_io_device_latency(
4275 const char *unit,
4276 const char *filename,
4277 unsigned line,
4278 const char *section,
4279 unsigned section_line,
4280 const char *lvalue,
4281 int ltype,
4282 const char *rvalue,
4283 void *data,
4284 void *userdata) {
4285
4286 _cleanup_free_ char *path = NULL, *resolved = NULL;
4287 CGroupIODeviceLatency *l;
4288 CGroupContext *c = data;
4289 const char *p = ASSERT_PTR(rvalue);
4290 usec_t usec;
4291 int r;
4292
4293 assert(filename);
4294 assert(lvalue);
4295
4296 if (isempty(rvalue)) {
4297 while (c->io_device_latencies)
4298 cgroup_context_free_io_device_latency(c, c->io_device_latencies);
4299
4300 return 0;
4301 }
4302
4303 r = extract_first_word(&p, &path, NULL, EXTRACT_UNQUOTE);
4304 if (r == -ENOMEM)
4305 return log_oom();
4306 if (r < 0) {
4307 log_syntax(unit, LOG_WARNING, filename, line, r,
4308 "Failed to extract device path and latency from '%s', ignoring.", rvalue);
4309 return 0;
4310 }
4311 if (r == 0 || isempty(p)) {
4312 log_syntax(unit, LOG_WARNING, filename, line, 0,
4313 "Invalid device path or latency specified in '%s', ignoring.", rvalue);
4314 return 0;
4315 }
4316
4317 r = unit_path_printf(userdata, path, &resolved);
4318 if (r < 0) {
4319 log_syntax(unit, LOG_WARNING, filename, line, r,
4320 "Failed to resolve unit specifiers in '%s', ignoring: %m", path);
4321 return 0;
4322 }
4323
4324 r = path_simplify_and_warn(resolved, 0, unit, filename, line, lvalue);
4325 if (r < 0)
4326 return 0;
4327
4328 r = parse_sec(p, &usec);
4329 if (r < 0) {
4330 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse timer value, ignoring: %s", p);
4331 return 0;
4332 }
4333
4334 l = new0(CGroupIODeviceLatency, 1);
4335 if (!l)
4336 return log_oom();
4337
4338 l->path = TAKE_PTR(resolved);
4339 l->target_usec = usec;
4340
4341 LIST_PREPEND(device_latencies, c->io_device_latencies, l);
4342 return 0;
4343 }
4344
4345 int config_parse_io_limit(
4346 const char *unit,
4347 const char *filename,
4348 unsigned line,
4349 const char *section,
4350 unsigned section_line,
4351 const char *lvalue,
4352 int ltype,
4353 const char *rvalue,
4354 void *data,
4355 void *userdata) {
4356
4357 _cleanup_free_ char *path = NULL, *resolved = NULL;
4358 CGroupIODeviceLimit *l = NULL;
4359 CGroupContext *c = data;
4360 CGroupIOLimitType type;
4361 const char *p = ASSERT_PTR(rvalue);
4362 uint64_t num;
4363 int r;
4364
4365 assert(filename);
4366 assert(lvalue);
4367
4368 type = cgroup_io_limit_type_from_string(lvalue);
4369 assert(type >= 0);
4370
4371 if (isempty(rvalue)) {
4372 LIST_FOREACH(device_limits, t, c->io_device_limits)
4373 t->limits[type] = cgroup_io_limit_defaults[type];
4374 return 0;
4375 }
4376
4377 r = extract_first_word(&p, &path, NULL, EXTRACT_UNQUOTE);
4378 if (r == -ENOMEM)
4379 return log_oom();
4380 if (r < 0) {
4381 log_syntax(unit, LOG_WARNING, filename, line, r,
4382 "Failed to extract device node and bandwidth from '%s', ignoring.", rvalue);
4383 return 0;
4384 }
4385 if (r == 0 || isempty(p)) {
4386 log_syntax(unit, LOG_WARNING, filename, line, 0,
4387 "Invalid device node or bandwidth specified in '%s', ignoring.", rvalue);
4388 return 0;
4389 }
4390
4391 r = unit_path_printf(userdata, path, &resolved);
4392 if (r < 0) {
4393 log_syntax(unit, LOG_WARNING, filename, line, r,
4394 "Failed to resolve unit specifiers in '%s', ignoring: %m", path);
4395 return 0;
4396 }
4397
4398 r = path_simplify_and_warn(resolved, 0, unit, filename, line, lvalue);
4399 if (r < 0)
4400 return 0;
4401
4402 if (streq("infinity", p))
4403 num = CGROUP_LIMIT_MAX;
4404 else {
4405 r = parse_size(p, 1000, &num);
4406 if (r < 0 || num <= 0) {
4407 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid IO limit '%s', ignoring.", p);
4408 return 0;
4409 }
4410 }
4411
4412 LIST_FOREACH(device_limits, t, c->io_device_limits)
4413 if (path_equal(resolved, t->path)) {
4414 l = t;
4415 break;
4416 }
4417
4418 if (!l) {
4419 l = new0(CGroupIODeviceLimit, 1);
4420 if (!l)
4421 return log_oom();
4422
4423 l->path = TAKE_PTR(resolved);
4424 for (CGroupIOLimitType i = 0; i < _CGROUP_IO_LIMIT_TYPE_MAX; i++)
4425 l->limits[i] = cgroup_io_limit_defaults[i];
4426
4427 LIST_PREPEND(device_limits, c->io_device_limits, l);
4428 }
4429
4430 l->limits[type] = num;
4431
4432 return 0;
4433 }
4434
4435 int config_parse_blockio_device_weight(
4436 const char *unit,
4437 const char *filename,
4438 unsigned line,
4439 const char *section,
4440 unsigned section_line,
4441 const char *lvalue,
4442 int ltype,
4443 const char *rvalue,
4444 void *data,
4445 void *userdata) {
4446
4447 _cleanup_free_ char *path = NULL, *resolved = NULL;
4448 CGroupBlockIODeviceWeight *w;
4449 CGroupContext *c = data;
4450 const char *p = ASSERT_PTR(rvalue);
4451 uint64_t u;
4452 int r;
4453
4454 assert(filename);
4455 assert(lvalue);
4456
4457 log_syntax(unit, LOG_WARNING, filename, line, 0,
4458 "Unit uses %s=; please use IO*= settings instead. Support for %s= will be removed soon.",
4459 lvalue, lvalue);
4460
4461 if (isempty(rvalue)) {
4462 while (c->blockio_device_weights)
4463 cgroup_context_free_blockio_device_weight(c, c->blockio_device_weights);
4464
4465 return 0;
4466 }
4467
4468 r = extract_first_word(&p, &path, NULL, EXTRACT_UNQUOTE);
4469 if (r == -ENOMEM)
4470 return log_oom();
4471 if (r < 0) {
4472 log_syntax(unit, LOG_WARNING, filename, line, r,
4473 "Failed to extract device node and weight from '%s', ignoring.", rvalue);
4474 return 0;
4475 }
4476 if (r == 0 || isempty(p)) {
4477 log_syntax(unit, LOG_WARNING, filename, line, 0,
4478 "Invalid device node or weight specified in '%s', ignoring.", rvalue);
4479 return 0;
4480 }
4481
4482 r = unit_path_printf(userdata, path, &resolved);
4483 if (r < 0) {
4484 log_syntax(unit, LOG_WARNING, filename, line, r,
4485 "Failed to resolve unit specifiers in '%s', ignoring: %m", path);
4486 return 0;
4487 }
4488
4489 r = path_simplify_and_warn(resolved, 0, unit, filename, line, lvalue);
4490 if (r < 0)
4491 return 0;
4492
4493 r = cg_blkio_weight_parse(p, &u);
4494 if (r < 0) {
4495 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid block IO weight '%s', ignoring: %m", p);
4496 return 0;
4497 }
4498
4499 assert(u != CGROUP_BLKIO_WEIGHT_INVALID);
4500
4501 w = new0(CGroupBlockIODeviceWeight, 1);
4502 if (!w)
4503 return log_oom();
4504
4505 w->path = TAKE_PTR(resolved);
4506 w->weight = u;
4507
4508 LIST_PREPEND(device_weights, c->blockio_device_weights, w);
4509 return 0;
4510 }
4511
4512 int config_parse_blockio_bandwidth(
4513 const char *unit,
4514 const char *filename,
4515 unsigned line,
4516 const char *section,
4517 unsigned section_line,
4518 const char *lvalue,
4519 int ltype,
4520 const char *rvalue,
4521 void *data,
4522 void *userdata) {
4523
4524 _cleanup_free_ char *path = NULL, *resolved = NULL;
4525 CGroupBlockIODeviceBandwidth *b = NULL;
4526 CGroupContext *c = data;
4527 const char *p = ASSERT_PTR(rvalue);
4528 uint64_t bytes;
4529 bool read;
4530 int r;
4531
4532 assert(filename);
4533 assert(lvalue);
4534
4535 log_syntax(unit, LOG_WARNING, filename, line, 0,
4536 "Unit uses %s=; please use IO*= settings instead. Support for %s= will be removed soon.",
4537 lvalue, lvalue);
4538
4539 read = streq("BlockIOReadBandwidth", lvalue);
4540
4541 if (isempty(rvalue)) {
4542 LIST_FOREACH(device_bandwidths, t, c->blockio_device_bandwidths) {
4543 t->rbps = CGROUP_LIMIT_MAX;
4544 t->wbps = CGROUP_LIMIT_MAX;
4545 }
4546 return 0;
4547 }
4548
4549 r = extract_first_word(&p, &path, NULL, EXTRACT_UNQUOTE);
4550 if (r == -ENOMEM)
4551 return log_oom();
4552 if (r < 0) {
4553 log_syntax(unit, LOG_WARNING, filename, line, r,
4554 "Failed to extract device node and bandwidth from '%s', ignoring.", rvalue);
4555 return 0;
4556 }
4557 if (r == 0 || isempty(p)) {
4558 log_syntax(unit, LOG_WARNING, filename, line, 0,
4559 "Invalid device node or bandwidth specified in '%s', ignoring.", rvalue);
4560 return 0;
4561 }
4562
4563 r = unit_path_printf(userdata, path, &resolved);
4564 if (r < 0) {
4565 log_syntax(unit, LOG_WARNING, filename, line, r,
4566 "Failed to resolve unit specifiers in '%s', ignoring: %m", path);
4567 return 0;
4568 }
4569
4570 r = path_simplify_and_warn(resolved, 0, unit, filename, line, lvalue);
4571 if (r < 0)
4572 return 0;
4573
4574 r = parse_size(p, 1000, &bytes);
4575 if (r < 0 || bytes <= 0) {
4576 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid Block IO Bandwidth '%s', ignoring.", p);
4577 return 0;
4578 }
4579
4580 LIST_FOREACH(device_bandwidths, t, c->blockio_device_bandwidths)
4581 if (path_equal(resolved, t->path)) {
4582 b = t;
4583 break;
4584 }
4585
4586 if (!b) {
4587 b = new0(CGroupBlockIODeviceBandwidth, 1);
4588 if (!b)
4589 return log_oom();
4590
4591 b->path = TAKE_PTR(resolved);
4592 b->rbps = CGROUP_LIMIT_MAX;
4593 b->wbps = CGROUP_LIMIT_MAX;
4594
4595 LIST_PREPEND(device_bandwidths, c->blockio_device_bandwidths, b);
4596 }
4597
4598 if (read)
4599 b->rbps = bytes;
4600 else
4601 b->wbps = bytes;
4602
4603 return 0;
4604 }
4605
4606 int config_parse_job_mode_isolate(
4607 const char *unit,
4608 const char *filename,
4609 unsigned line,
4610 const char *section,
4611 unsigned section_line,
4612 const char *lvalue,
4613 int ltype,
4614 const char *rvalue,
4615 void *data,
4616 void *userdata) {
4617
4618 JobMode *m = data;
4619 int r;
4620
4621 assert(filename);
4622 assert(lvalue);
4623 assert(rvalue);
4624
4625 r = parse_boolean(rvalue);
4626 if (r < 0) {
4627 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse boolean, ignoring: %s", rvalue);
4628 return 0;
4629 }
4630
4631 log_notice("%s is deprecated. Please use OnFailureJobMode= instead", lvalue);
4632
4633 *m = r ? JOB_ISOLATE : JOB_REPLACE;
4634 return 0;
4635 }
4636
4637 int config_parse_exec_directories(
4638 const char *unit,
4639 const char *filename,
4640 unsigned line,
4641 const char *section,
4642 unsigned section_line,
4643 const char *lvalue,
4644 int ltype,
4645 const char *rvalue,
4646 void *data,
4647 void *userdata) {
4648
4649 ExecDirectory *ed = ASSERT_PTR(data);
4650 const Unit *u = userdata;
4651 int r;
4652
4653 assert(filename);
4654 assert(lvalue);
4655 assert(rvalue);
4656
4657 if (isempty(rvalue)) {
4658 /* Empty assignment resets the list */
4659 exec_directory_done(ed);
4660 return 0;
4661 }
4662
4663 for (const char *p = rvalue;;) {
4664 _cleanup_free_ char *tuple = NULL;
4665
4666 r = extract_first_word(&p, &tuple, NULL, EXTRACT_UNQUOTE|EXTRACT_RETAIN_ESCAPE);
4667 if (r == -ENOMEM)
4668 return log_oom();
4669 if (r < 0) {
4670 log_syntax(unit, LOG_WARNING, filename, line, r,
4671 "Invalid syntax %s=%s, ignoring: %m", lvalue, rvalue);
4672 return 0;
4673 }
4674 if (r == 0)
4675 return 0;
4676
4677 _cleanup_free_ char *src = NULL, *dest = NULL;
4678 const char *q = tuple;
4679 r = extract_many_words(&q, ":", EXTRACT_CUNESCAPE|EXTRACT_UNESCAPE_SEPARATORS, &src, &dest, NULL);
4680 if (r == -ENOMEM)
4681 return log_oom();
4682 if (r <= 0) {
4683 log_syntax(unit, LOG_WARNING, filename, line, r,
4684 "Invalid syntax in %s=, ignoring: %s", lvalue, tuple);
4685 return 0;
4686 }
4687
4688 _cleanup_free_ char *sresolved = NULL;
4689 r = unit_path_printf(u, src, &sresolved);
4690 if (r < 0) {
4691 log_syntax(unit, LOG_WARNING, filename, line, r,
4692 "Failed to resolve unit specifiers in \"%s\", ignoring: %m", src);
4693 continue;
4694 }
4695
4696 r = path_simplify_and_warn(sresolved, PATH_CHECK_RELATIVE, unit, filename, line, lvalue);
4697 if (r < 0)
4698 continue;
4699
4700 if (path_startswith(sresolved, "private")) {
4701 log_syntax(unit, LOG_WARNING, filename, line, 0,
4702 "%s= path can't be 'private', ignoring assignment: %s", lvalue, tuple);
4703 continue;
4704 }
4705
4706 /* For State and Runtime directories we support an optional destination parameter, which
4707 * will be used to create a symlink to the source. */
4708 _cleanup_free_ char *dresolved = NULL;
4709 if (!isempty(dest)) {
4710 if (streq(lvalue, "ConfigurationDirectory")) {
4711 log_syntax(unit, LOG_WARNING, filename, line, 0,
4712 "Destination parameter is not supported for ConfigurationDirectory, ignoring: %s", tuple);
4713 continue;
4714 }
4715
4716 r = unit_path_printf(u, dest, &dresolved);
4717 if (r < 0) {
4718 log_syntax(unit, LOG_WARNING, filename, line, r,
4719 "Failed to resolve unit specifiers in \"%s\", ignoring: %m", dest);
4720 continue;
4721 }
4722
4723 r = path_simplify_and_warn(dresolved, PATH_CHECK_RELATIVE, unit, filename, line, lvalue);
4724 if (r < 0)
4725 continue;
4726 }
4727
4728 r = exec_directory_add(ed, sresolved, dresolved);
4729 if (r < 0)
4730 return log_oom();
4731 }
4732 }
4733
4734 int config_parse_set_credential(
4735 const char *unit,
4736 const char *filename,
4737 unsigned line,
4738 const char *section,
4739 unsigned section_line,
4740 const char *lvalue,
4741 int ltype,
4742 const char *rvalue,
4743 void *data,
4744 void *userdata) {
4745
4746 _cleanup_free_ char *word = NULL, *k = NULL;
4747 _cleanup_free_ void *d = NULL;
4748 ExecContext *context = ASSERT_PTR(data);
4749 ExecSetCredential *old;
4750 Unit *u = userdata;
4751 bool encrypted = ltype;
4752 const char *p = ASSERT_PTR(rvalue);
4753 size_t size;
4754 int r;
4755
4756 assert(filename);
4757 assert(lvalue);
4758
4759 if (isempty(rvalue)) {
4760 /* Empty assignment resets the list */
4761 context->set_credentials = hashmap_free(context->set_credentials);
4762 return 0;
4763 }
4764
4765 r = extract_first_word(&p, &word, ":", EXTRACT_DONT_COALESCE_SEPARATORS);
4766 if (r == -ENOMEM)
4767 return log_oom();
4768 if (r < 0) {
4769 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to extract credential name, ignoring: %s", rvalue);
4770 return 0;
4771 }
4772 if (r == 0 || isempty(p)) {
4773 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid syntax, ignoring: %s", rvalue);
4774 return 0;
4775 }
4776
4777 r = unit_cred_printf(u, word, &k);
4778 if (r < 0) {
4779 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in \"%s\", ignoring: %m", word);
4780 return 0;
4781 }
4782 if (!credential_name_valid(k)) {
4783 log_syntax(unit, LOG_WARNING, filename, line, 0, "Credential name \"%s\" not valid, ignoring.", k);
4784 return 0;
4785 }
4786
4787 if (encrypted) {
4788 r = unbase64mem_full(p, SIZE_MAX, true, &d, &size);
4789 if (r < 0) {
4790 log_syntax(unit, LOG_WARNING, filename, line, r, "Encrypted credential data not valid Base64 data, ignoring.");
4791 return 0;
4792 }
4793 } else {
4794 char *unescaped;
4795 ssize_t l;
4796
4797 /* We support escape codes here, so that users can insert trailing \n if they like */
4798 l = cunescape(p, UNESCAPE_ACCEPT_NUL, &unescaped);
4799 if (l < 0) {
4800 log_syntax(unit, LOG_WARNING, filename, line, l, "Can't unescape \"%s\", ignoring: %m", p);
4801 return 0;
4802 }
4803
4804 d = unescaped;
4805 size = l;
4806 }
4807
4808 old = hashmap_get(context->set_credentials, k);
4809 if (old) {
4810 free_and_replace(old->data, d);
4811 old->size = size;
4812 old->encrypted = encrypted;
4813 } else {
4814 _cleanup_(exec_set_credential_freep) ExecSetCredential *sc = NULL;
4815
4816 sc = new(ExecSetCredential, 1);
4817 if (!sc)
4818 return log_oom();
4819
4820 *sc = (ExecSetCredential) {
4821 .id = TAKE_PTR(k),
4822 .data = TAKE_PTR(d),
4823 .size = size,
4824 .encrypted = encrypted,
4825 };
4826
4827 r = hashmap_ensure_put(&context->set_credentials, &exec_set_credential_hash_ops, sc->id, sc);
4828 if (r == -ENOMEM)
4829 return log_oom();
4830 if (r < 0) {
4831 log_syntax(unit, LOG_WARNING, filename, line, r,
4832 "Duplicated credential value '%s', ignoring assignment: %s", sc->id, rvalue);
4833 return 0;
4834 }
4835
4836 TAKE_PTR(sc);
4837 }
4838
4839 return 0;
4840 }
4841
4842 int hashmap_put_credential(Hashmap **h, const char *id, const char *path, bool encrypted) {
4843 ExecLoadCredential *old;
4844 int r;
4845
4846 assert(h);
4847 assert(id);
4848 assert(path);
4849
4850 old = hashmap_get(*h, id);
4851 if (old) {
4852 r = free_and_strdup(&old->path, path);
4853 if (r < 0)
4854 return r;
4855
4856 old->encrypted = encrypted;
4857 } else {
4858 _cleanup_(exec_load_credential_freep) ExecLoadCredential *lc = NULL;
4859
4860 lc = new(ExecLoadCredential, 1);
4861 if (!lc)
4862 return log_oom();
4863
4864 *lc = (ExecLoadCredential) {
4865 .id = strdup(id),
4866 .path = strdup(path),
4867 .encrypted = encrypted,
4868 };
4869 if (!lc->id || !lc->path)
4870 return -ENOMEM;
4871
4872 r = hashmap_ensure_put(h, &exec_load_credential_hash_ops, lc->id, lc);
4873 if (r < 0)
4874 return r;
4875
4876 TAKE_PTR(lc);
4877 }
4878
4879 return 0;
4880 }
4881
4882 int config_parse_load_credential(
4883 const char *unit,
4884 const char *filename,
4885 unsigned line,
4886 const char *section,
4887 unsigned section_line,
4888 const char *lvalue,
4889 int ltype,
4890 const char *rvalue,
4891 void *data,
4892 void *userdata) {
4893
4894 _cleanup_free_ char *word = NULL, *k = NULL, *q = NULL;
4895 ExecContext *context = ASSERT_PTR(data);
4896 bool encrypted = ltype;
4897 Unit *u = userdata;
4898 const char *p;
4899 int r;
4900
4901 assert(filename);
4902 assert(lvalue);
4903 assert(rvalue);
4904
4905 if (isempty(rvalue)) {
4906 /* Empty assignment resets the list */
4907 context->load_credentials = hashmap_free(context->load_credentials);
4908 return 0;
4909 }
4910
4911 p = rvalue;
4912 r = extract_first_word(&p, &word, ":", EXTRACT_DONT_COALESCE_SEPARATORS);
4913 if (r == -ENOMEM)
4914 return log_oom();
4915 if (r <= 0) {
4916 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid syntax, ignoring: %s", rvalue);
4917 return 0;
4918 }
4919
4920 r = unit_cred_printf(u, word, &k);
4921 if (r < 0) {
4922 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in \"%s\", ignoring: %m", word);
4923 return 0;
4924 }
4925 if (!credential_name_valid(k)) {
4926 log_syntax(unit, LOG_WARNING, filename, line, 0, "Credential name \"%s\" not valid, ignoring.", k);
4927 return 0;
4928 }
4929
4930 if (isempty(p)) {
4931 /* If only one field is specified take it as shortcut for inheriting a credential named
4932 * the same way from our parent */
4933 q = strdup(k);
4934 if (!q)
4935 return log_oom();
4936 } else {
4937 r = unit_path_printf(u, p, &q);
4938 if (r < 0) {
4939 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in \"%s\", ignoring: %m", p);
4940 return 0;
4941 }
4942 if (path_is_absolute(q) ? !path_is_normalized(q) : !credential_name_valid(q)) {
4943 log_syntax(unit, LOG_WARNING, filename, line, 0, "Credential source \"%s\" not valid, ignoring.", q);
4944 return 0;
4945 }
4946 }
4947
4948 r = hashmap_put_credential(&context->load_credentials, k, q, encrypted);
4949 if (r < 0)
4950 return log_error_errno(r, "Failed to store load credential '%s': %m", rvalue);
4951
4952 return 0;
4953 }
4954
4955 int config_parse_import_credential(
4956 const char *unit,
4957 const char *filename,
4958 unsigned line,
4959 const char *section,
4960 unsigned section_line,
4961 const char *lvalue,
4962 int ltype,
4963 const char *rvalue,
4964 void *data,
4965 void *userdata) {
4966
4967 _cleanup_free_ char *s = NULL;
4968 Set** import_credentials = ASSERT_PTR(data);
4969 Unit *u = userdata;
4970 int r;
4971
4972 assert(filename);
4973 assert(lvalue);
4974 assert(rvalue);
4975
4976 if (isempty(rvalue)) {
4977 /* Empty assignment resets the list */
4978 *import_credentials = set_free_free(*import_credentials);
4979 return 0;
4980 }
4981
4982 r = unit_cred_printf(u, rvalue, &s);
4983 if (r < 0) {
4984 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in \"%s\", ignoring: %m", s);
4985 return 0;
4986 }
4987 if (!credential_glob_valid(s)) {
4988 log_syntax(unit, LOG_WARNING, filename, line, 0, "Credential name or glob \"%s\" not valid, ignoring.", s);
4989 return 0;
4990 }
4991
4992 r = set_put_strdup(import_credentials, s);
4993 if (r < 0)
4994 return log_error_errno(r, "Failed to store credential name '%s': %m", rvalue);
4995
4996 return 0;
4997 }
4998
4999 int config_parse_set_status(
5000 const char *unit,
5001 const char *filename,
5002 unsigned line,
5003 const char *section,
5004 unsigned section_line,
5005 const char *lvalue,
5006 int ltype,
5007 const char *rvalue,
5008 void *data,
5009 void *userdata) {
5010
5011 ExitStatusSet *status_set = ASSERT_PTR(data);
5012 int r;
5013
5014 assert(filename);
5015 assert(lvalue);
5016 assert(rvalue);
5017
5018 /* Empty assignment resets the list */
5019 if (isempty(rvalue)) {
5020 exit_status_set_free(status_set);
5021 return 0;
5022 }
5023
5024 for (const char *p = rvalue;;) {
5025 _cleanup_free_ char *word = NULL;
5026 Bitmap *bitmap;
5027
5028 r = extract_first_word(&p, &word, NULL, 0);
5029 if (r == -ENOMEM)
5030 return log_oom();
5031 if (r < 0) {
5032 log_syntax(unit, LOG_WARNING, filename, line, r,
5033 "Failed to parse %s=%s, ignoring: %m", lvalue, rvalue);
5034 return 0;
5035 }
5036 if (r == 0)
5037 return 0;
5038
5039 /* We need to call exit_status_from_string() first, because we want
5040 * to parse numbers as exit statuses, not signals. */
5041
5042 r = exit_status_from_string(word);
5043 if (r >= 0) {
5044 assert(r >= 0 && r < 256);
5045 bitmap = &status_set->status;
5046 } else {
5047 r = signal_from_string(word);
5048 if (r < 0) {
5049 log_syntax(unit, LOG_WARNING, filename, line, r,
5050 "Failed to parse value, ignoring: %s", word);
5051 continue;
5052 }
5053 bitmap = &status_set->signal;
5054 }
5055
5056 r = bitmap_set(bitmap, r);
5057 if (r < 0)
5058 log_syntax(unit, LOG_WARNING, filename, line, r,
5059 "Failed to set signal or status %s, ignoring: %m", word);
5060 }
5061 }
5062
5063 int config_parse_namespace_path_strv(
5064 const char *unit,
5065 const char *filename,
5066 unsigned line,
5067 const char *section,
5068 unsigned section_line,
5069 const char *lvalue,
5070 int ltype,
5071 const char *rvalue,
5072 void *data,
5073 void *userdata) {
5074
5075 const Unit *u = userdata;
5076 char*** sv = ASSERT_PTR(data);
5077 int r;
5078
5079 assert(filename);
5080 assert(lvalue);
5081 assert(rvalue);
5082
5083 if (isempty(rvalue)) {
5084 /* Empty assignment resets the list */
5085 *sv = strv_free(*sv);
5086 return 0;
5087 }
5088
5089 for (const char *p = rvalue;;) {
5090 _cleanup_free_ char *word = NULL, *resolved = NULL, *joined = NULL;
5091 const char *w;
5092 bool ignore_enoent = false, shall_prefix = false;
5093
5094 r = extract_first_word(&p, &word, NULL, EXTRACT_UNQUOTE);
5095 if (r == -ENOMEM)
5096 return log_oom();
5097 if (r < 0) {
5098 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to extract first word, ignoring: %s", rvalue);
5099 return 0;
5100 }
5101 if (r == 0)
5102 break;
5103
5104 w = word;
5105 if (startswith(w, "-")) {
5106 ignore_enoent = true;
5107 w++;
5108 }
5109 if (startswith(w, "+")) {
5110 shall_prefix = true;
5111 w++;
5112 }
5113
5114 r = unit_path_printf(u, w, &resolved);
5115 if (r < 0) {
5116 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s: %m", w);
5117 continue;
5118 }
5119
5120 r = path_simplify_and_warn(resolved, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
5121 if (r < 0)
5122 continue;
5123
5124 joined = strjoin(ignore_enoent ? "-" : "",
5125 shall_prefix ? "+" : "",
5126 resolved);
5127
5128 r = strv_push(sv, joined);
5129 if (r < 0)
5130 return log_oom();
5131
5132 joined = NULL;
5133 }
5134
5135 return 0;
5136 }
5137
5138 int config_parse_temporary_filesystems(
5139 const char *unit,
5140 const char *filename,
5141 unsigned line,
5142 const char *section,
5143 unsigned section_line,
5144 const char *lvalue,
5145 int ltype,
5146 const char *rvalue,
5147 void *data,
5148 void *userdata) {
5149
5150 const Unit *u = userdata;
5151 ExecContext *c = ASSERT_PTR(data);
5152 int r;
5153
5154 assert(filename);
5155 assert(lvalue);
5156 assert(rvalue);
5157
5158 if (isempty(rvalue)) {
5159 /* Empty assignment resets the list */
5160 temporary_filesystem_free_many(c->temporary_filesystems, c->n_temporary_filesystems);
5161 c->temporary_filesystems = NULL;
5162 c->n_temporary_filesystems = 0;
5163 return 0;
5164 }
5165
5166 for (const char *p = rvalue;;) {
5167 _cleanup_free_ char *word = NULL, *path = NULL, *resolved = NULL;
5168 const char *w;
5169
5170 r = extract_first_word(&p, &word, NULL, EXTRACT_UNQUOTE);
5171 if (r == -ENOMEM)
5172 return log_oom();
5173 if (r < 0) {
5174 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to extract first word, ignoring: %s", rvalue);
5175 return 0;
5176 }
5177 if (r == 0)
5178 return 0;
5179
5180 w = word;
5181 r = extract_first_word(&w, &path, ":", EXTRACT_DONT_COALESCE_SEPARATORS);
5182 if (r == -ENOMEM)
5183 return log_oom();
5184 if (r < 0) {
5185 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to extract first word, ignoring: %s", word);
5186 continue;
5187 }
5188 if (r == 0) {
5189 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid syntax, ignoring: %s", word);
5190 continue;
5191 }
5192
5193 r = unit_path_printf(u, path, &resolved);
5194 if (r < 0) {
5195 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", path);
5196 continue;
5197 }
5198
5199 r = path_simplify_and_warn(resolved, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
5200 if (r < 0)
5201 continue;
5202
5203 r = temporary_filesystem_add(&c->temporary_filesystems, &c->n_temporary_filesystems, resolved, w);
5204 if (r < 0)
5205 return log_oom();
5206 }
5207 }
5208
5209 int config_parse_bind_paths(
5210 const char *unit,
5211 const char *filename,
5212 unsigned line,
5213 const char *section,
5214 unsigned section_line,
5215 const char *lvalue,
5216 int ltype,
5217 const char *rvalue,
5218 void *data,
5219 void *userdata) {
5220
5221 ExecContext *c = ASSERT_PTR(data);
5222 const Unit *u = userdata;
5223 int r;
5224
5225 assert(filename);
5226 assert(lvalue);
5227 assert(rvalue);
5228
5229 if (isempty(rvalue)) {
5230 /* Empty assignment resets the list */
5231 bind_mount_free_many(c->bind_mounts, c->n_bind_mounts);
5232 c->bind_mounts = NULL;
5233 c->n_bind_mounts = 0;
5234 return 0;
5235 }
5236
5237 for (const char *p = rvalue;;) {
5238 _cleanup_free_ char *source = NULL, *destination = NULL;
5239 _cleanup_free_ char *sresolved = NULL, *dresolved = NULL;
5240 char *s = NULL, *d = NULL;
5241 bool rbind = true, ignore_enoent = false;
5242
5243 r = extract_first_word(&p, &source, ":" WHITESPACE, EXTRACT_UNQUOTE|EXTRACT_DONT_COALESCE_SEPARATORS);
5244 if (r == -ENOMEM)
5245 return log_oom();
5246 if (r < 0) {
5247 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse %s, ignoring: %s", lvalue, rvalue);
5248 return 0;
5249 }
5250 if (r == 0)
5251 break;
5252
5253 r = unit_full_printf_full(u, source, PATH_MAX, &sresolved);
5254 if (r < 0) {
5255 log_syntax(unit, LOG_WARNING, filename, line, r,
5256 "Failed to resolve unit specifiers in \"%s\", ignoring: %m", source);
5257 continue;
5258 }
5259
5260 s = sresolved;
5261 if (s[0] == '-') {
5262 ignore_enoent = true;
5263 s++;
5264 }
5265
5266 r = path_simplify_and_warn(s, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
5267 if (r < 0)
5268 continue;
5269
5270 /* Optionally, the destination is specified. */
5271 if (p && p[-1] == ':') {
5272 r = extract_first_word(&p, &destination, ":" WHITESPACE, EXTRACT_UNQUOTE|EXTRACT_DONT_COALESCE_SEPARATORS);
5273 if (r == -ENOMEM)
5274 return log_oom();
5275 if (r < 0) {
5276 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse %s, ignoring: %s", lvalue, rvalue);
5277 return 0;
5278 }
5279 if (r == 0) {
5280 log_syntax(unit, LOG_WARNING, filename, line, 0, "Missing argument after ':', ignoring: %s", s);
5281 continue;
5282 }
5283
5284 r = unit_path_printf(u, destination, &dresolved);
5285 if (r < 0) {
5286 log_syntax(unit, LOG_WARNING, filename, line, r,
5287 "Failed to resolve specifiers in \"%s\", ignoring: %m", destination);
5288 continue;
5289 }
5290
5291 r = path_simplify_and_warn(dresolved, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
5292 if (r < 0)
5293 continue;
5294
5295 d = dresolved;
5296
5297 /* Optionally, there's also a short option string specified */
5298 if (p && p[-1] == ':') {
5299 _cleanup_free_ char *options = NULL;
5300
5301 r = extract_first_word(&p, &options, NULL, EXTRACT_UNQUOTE);
5302 if (r == -ENOMEM)
5303 return log_oom();
5304 if (r < 0) {
5305 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse %s=, ignoring: %s", lvalue, rvalue);
5306 return 0;
5307 }
5308
5309 if (isempty(options) || streq(options, "rbind"))
5310 rbind = true;
5311 else if (streq(options, "norbind"))
5312 rbind = false;
5313 else {
5314 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid option string, ignoring setting: %s", options);
5315 continue;
5316 }
5317 }
5318 } else
5319 d = s;
5320
5321 r = bind_mount_add(&c->bind_mounts, &c->n_bind_mounts,
5322 &(BindMount) {
5323 .source = s,
5324 .destination = d,
5325 .read_only = !!strstr(lvalue, "ReadOnly"),
5326 .recursive = rbind,
5327 .ignore_enoent = ignore_enoent,
5328 });
5329 if (r < 0)
5330 return log_oom();
5331 }
5332
5333 return 0;
5334 }
5335
5336 int config_parse_mount_images(
5337 const char *unit,
5338 const char *filename,
5339 unsigned line,
5340 const char *section,
5341 unsigned section_line,
5342 const char *lvalue,
5343 int ltype,
5344 const char *rvalue,
5345 void *data,
5346 void *userdata) {
5347
5348 ExecContext *c = ASSERT_PTR(data);
5349 const Unit *u = userdata;
5350 int r;
5351
5352 assert(filename);
5353 assert(lvalue);
5354 assert(rvalue);
5355
5356 if (isempty(rvalue)) {
5357 /* Empty assignment resets the list */
5358 c->mount_images = mount_image_free_many(c->mount_images, &c->n_mount_images);
5359 return 0;
5360 }
5361
5362 for (const char *p = rvalue;;) {
5363 _cleanup_(mount_options_free_allp) MountOptions *options = NULL;
5364 _cleanup_free_ char *first = NULL, *second = NULL, *tuple = NULL;
5365 _cleanup_free_ char *sresolved = NULL, *dresolved = NULL;
5366 const char *q = NULL;
5367 char *s = NULL;
5368 bool permissive = false;
5369
5370 r = extract_first_word(&p, &tuple, NULL, EXTRACT_UNQUOTE|EXTRACT_RETAIN_ESCAPE);
5371 if (r == -ENOMEM)
5372 return log_oom();
5373 if (r < 0) {
5374 log_syntax(unit, LOG_WARNING, filename, line, r,
5375 "Invalid syntax %s=%s, ignoring: %m", lvalue, rvalue);
5376 return 0;
5377 }
5378 if (r == 0)
5379 return 0;
5380
5381 q = tuple;
5382 r = extract_many_words(&q, ":", EXTRACT_CUNESCAPE|EXTRACT_UNESCAPE_SEPARATORS, &first, &second, NULL);
5383 if (r == -ENOMEM)
5384 return log_oom();
5385 if (r < 0) {
5386 log_syntax(unit, LOG_WARNING, filename, line, r,
5387 "Invalid syntax in %s=, ignoring: %s", lvalue, tuple);
5388 return 0;
5389 }
5390 if (r == 0)
5391 continue;
5392
5393 s = first;
5394 if (s[0] == '-') {
5395 permissive = true;
5396 s++;
5397 }
5398
5399 r = unit_path_printf(u, s, &sresolved);
5400 if (r < 0) {
5401 log_syntax(unit, LOG_WARNING, filename, line, r,
5402 "Failed to resolve unit specifiers in \"%s\", ignoring: %m", s);
5403 continue;
5404 }
5405
5406 r = path_simplify_and_warn(sresolved, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
5407 if (r < 0)
5408 continue;
5409
5410 if (isempty(second)) {
5411 log_syntax(unit, LOG_WARNING, filename, line, 0, "Missing destination in %s, ignoring: %s", lvalue, rvalue);
5412 continue;
5413 }
5414
5415 r = unit_path_printf(u, second, &dresolved);
5416 if (r < 0) {
5417 log_syntax(unit, LOG_WARNING, filename, line, r,
5418 "Failed to resolve specifiers in \"%s\", ignoring: %m", second);
5419 continue;
5420 }
5421
5422 r = path_simplify_and_warn(dresolved, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
5423 if (r < 0)
5424 continue;
5425
5426 for (;;) {
5427 _cleanup_free_ char *partition = NULL, *mount_options = NULL, *mount_options_resolved = NULL;
5428 MountOptions *o = NULL;
5429 PartitionDesignator partition_designator;
5430
5431 r = extract_many_words(&q, ":", EXTRACT_CUNESCAPE|EXTRACT_UNESCAPE_SEPARATORS, &partition, &mount_options, NULL);
5432 if (r == -ENOMEM)
5433 return log_oom();
5434 if (r < 0) {
5435 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid syntax, ignoring: %s", q);
5436 return 0;
5437 }
5438 if (r == 0)
5439 break;
5440 /* Single set of options, applying to the root partition/single filesystem */
5441 if (r == 1) {
5442 r = unit_full_printf(u, partition, &mount_options_resolved);
5443 if (r < 0) {
5444 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", first);
5445 continue;
5446 }
5447
5448 o = new(MountOptions, 1);
5449 if (!o)
5450 return log_oom();
5451 *o = (MountOptions) {
5452 .partition_designator = PARTITION_ROOT,
5453 .options = TAKE_PTR(mount_options_resolved),
5454 };
5455 LIST_APPEND(mount_options, options, o);
5456
5457 break;
5458 }
5459
5460 partition_designator = partition_designator_from_string(partition);
5461 if (partition_designator < 0) {
5462 log_syntax(unit, LOG_WARNING, filename, line, partition_designator,
5463 "Invalid partition name %s, ignoring", partition);
5464 continue;
5465 }
5466 r = unit_full_printf(u, mount_options, &mount_options_resolved);
5467 if (r < 0) {
5468 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", mount_options);
5469 continue;
5470 }
5471
5472 o = new(MountOptions, 1);
5473 if (!o)
5474 return log_oom();
5475 *o = (MountOptions) {
5476 .partition_designator = partition_designator,
5477 .options = TAKE_PTR(mount_options_resolved),
5478 };
5479 LIST_APPEND(mount_options, options, o);
5480 }
5481
5482 r = mount_image_add(&c->mount_images, &c->n_mount_images,
5483 &(MountImage) {
5484 .source = sresolved,
5485 .destination = dresolved,
5486 .mount_options = options,
5487 .ignore_enoent = permissive,
5488 .type = MOUNT_IMAGE_DISCRETE,
5489 });
5490 if (r < 0)
5491 return log_oom();
5492 }
5493 }
5494
5495 int config_parse_extension_images(
5496 const char *unit,
5497 const char *filename,
5498 unsigned line,
5499 const char *section,
5500 unsigned section_line,
5501 const char *lvalue,
5502 int ltype,
5503 const char *rvalue,
5504 void *data,
5505 void *userdata) {
5506
5507 ExecContext *c = ASSERT_PTR(data);
5508 const Unit *u = userdata;
5509 int r;
5510
5511 assert(filename);
5512 assert(lvalue);
5513 assert(rvalue);
5514
5515 if (isempty(rvalue)) {
5516 /* Empty assignment resets the list */
5517 c->extension_images = mount_image_free_many(c->extension_images, &c->n_extension_images);
5518 return 0;
5519 }
5520
5521 for (const char *p = rvalue;;) {
5522 _cleanup_free_ char *source = NULL, *tuple = NULL, *sresolved = NULL;
5523 _cleanup_(mount_options_free_allp) MountOptions *options = NULL;
5524 bool permissive = false;
5525 const char *q = NULL;
5526 char *s = NULL;
5527
5528 r = extract_first_word(&p, &tuple, NULL, EXTRACT_UNQUOTE|EXTRACT_RETAIN_ESCAPE);
5529 if (r == -ENOMEM)
5530 return log_oom();
5531 if (r < 0) {
5532 log_syntax(unit, LOG_WARNING, filename, line, r,
5533 "Invalid syntax %s=%s, ignoring: %m", lvalue, rvalue);
5534 return 0;
5535 }
5536 if (r == 0)
5537 return 0;
5538
5539 q = tuple;
5540 r = extract_first_word(&q, &source, ":", EXTRACT_CUNESCAPE|EXTRACT_UNESCAPE_SEPARATORS);
5541 if (r == -ENOMEM)
5542 return log_oom();
5543 if (r < 0) {
5544 log_syntax(unit, LOG_WARNING, filename, line, r,
5545 "Invalid syntax in %s=, ignoring: %s", lvalue, tuple);
5546 return 0;
5547 }
5548 if (r == 0)
5549 continue;
5550
5551 s = source;
5552 if (s[0] == '-') {
5553 permissive = true;
5554 s++;
5555 }
5556
5557 r = unit_path_printf(u, s, &sresolved);
5558 if (r < 0) {
5559 log_syntax(unit, LOG_WARNING, filename, line, r,
5560 "Failed to resolve unit specifiers in \"%s\", ignoring: %m", s);
5561 continue;
5562 }
5563
5564 r = path_simplify_and_warn(sresolved, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
5565 if (r < 0)
5566 continue;
5567
5568 for (;;) {
5569 _cleanup_free_ char *partition = NULL, *mount_options = NULL, *mount_options_resolved = NULL;
5570 MountOptions *o = NULL;
5571 PartitionDesignator partition_designator;
5572
5573 r = extract_many_words(&q, ":", EXTRACT_CUNESCAPE|EXTRACT_UNESCAPE_SEPARATORS, &partition, &mount_options, NULL);
5574 if (r == -ENOMEM)
5575 return log_oom();
5576 if (r < 0) {
5577 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid syntax, ignoring: %s", q);
5578 return 0;
5579 }
5580 if (r == 0)
5581 break;
5582 /* Single set of options, applying to the root partition/single filesystem */
5583 if (r == 1) {
5584 r = unit_full_printf(u, partition, &mount_options_resolved);
5585 if (r < 0) {
5586 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", partition);
5587 continue;
5588 }
5589
5590 o = new(MountOptions, 1);
5591 if (!o)
5592 return log_oom();
5593 *o = (MountOptions) {
5594 .partition_designator = PARTITION_ROOT,
5595 .options = TAKE_PTR(mount_options_resolved),
5596 };
5597 LIST_APPEND(mount_options, options, o);
5598
5599 break;
5600 }
5601
5602 partition_designator = partition_designator_from_string(partition);
5603 if (partition_designator < 0) {
5604 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid partition name %s, ignoring", partition);
5605 continue;
5606 }
5607 r = unit_full_printf(u, mount_options, &mount_options_resolved);
5608 if (r < 0) {
5609 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", mount_options);
5610 continue;
5611 }
5612
5613 o = new(MountOptions, 1);
5614 if (!o)
5615 return log_oom();
5616 *o = (MountOptions) {
5617 .partition_designator = partition_designator,
5618 .options = TAKE_PTR(mount_options_resolved),
5619 };
5620 LIST_APPEND(mount_options, options, o);
5621 }
5622
5623 r = mount_image_add(&c->extension_images, &c->n_extension_images,
5624 &(MountImage) {
5625 .source = sresolved,
5626 .mount_options = options,
5627 .ignore_enoent = permissive,
5628 .type = MOUNT_IMAGE_EXTENSION,
5629 });
5630 if (r < 0)
5631 return log_oom();
5632 }
5633 }
5634
5635 int config_parse_job_timeout_sec(
5636 const char* unit,
5637 const char *filename,
5638 unsigned line,
5639 const char *section,
5640 unsigned section_line,
5641 const char *lvalue,
5642 int ltype,
5643 const char *rvalue,
5644 void *data,
5645 void *userdata) {
5646
5647 Unit *u = ASSERT_PTR(data);
5648 usec_t usec;
5649 int r;
5650
5651 assert(filename);
5652 assert(lvalue);
5653 assert(rvalue);
5654
5655 r = parse_sec_fix_0(rvalue, &usec);
5656 if (r < 0) {
5657 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse JobTimeoutSec= parameter, ignoring: %s", rvalue);
5658 return 0;
5659 }
5660
5661 /* If the user explicitly changed JobTimeoutSec= also change JobRunningTimeoutSec=, for compatibility with old
5662 * versions. If JobRunningTimeoutSec= was explicitly set, avoid this however as whatever the user picked should
5663 * count. */
5664
5665 if (!u->job_running_timeout_set)
5666 u->job_running_timeout = usec;
5667
5668 u->job_timeout = usec;
5669
5670 return 0;
5671 }
5672
5673 int config_parse_job_running_timeout_sec(
5674 const char* unit,
5675 const char *filename,
5676 unsigned line,
5677 const char *section,
5678 unsigned section_line,
5679 const char *lvalue,
5680 int ltype,
5681 const char *rvalue,
5682 void *data,
5683 void *userdata) {
5684
5685 Unit *u = ASSERT_PTR(data);
5686 usec_t usec;
5687 int r;
5688
5689 assert(filename);
5690 assert(lvalue);
5691 assert(rvalue);
5692
5693 r = parse_sec_fix_0(rvalue, &usec);
5694 if (r < 0) {
5695 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse JobRunningTimeoutSec= parameter, ignoring: %s", rvalue);
5696 return 0;
5697 }
5698
5699 u->job_running_timeout = usec;
5700 u->job_running_timeout_set = true;
5701
5702 return 0;
5703 }
5704
5705 int config_parse_emergency_action(
5706 const char* unit,
5707 const char *filename,
5708 unsigned line,
5709 const char *section,
5710 unsigned section_line,
5711 const char *lvalue,
5712 int ltype,
5713 const char *rvalue,
5714 void *data,
5715 void *userdata) {
5716
5717 EmergencyAction *x = ASSERT_PTR(data);
5718 RuntimeScope runtime_scope;
5719 int r;
5720
5721 assert(filename);
5722 assert(lvalue);
5723 assert(rvalue);
5724
5725 /* If we have a unit determine the scope based on it */
5726 if (unit)
5727 runtime_scope = ((Unit*) ASSERT_PTR(userdata))->manager->runtime_scope;
5728 else
5729 runtime_scope = ltype; /* otherwise, assume the scope is passed in via ltype */
5730
5731 r = parse_emergency_action(rvalue, runtime_scope, x);
5732 if (r < 0) {
5733 if (r == -EOPNOTSUPP)
5734 log_syntax(unit, LOG_WARNING, filename, line, r,
5735 "%s= specified as %s mode action, ignoring: %s",
5736 lvalue, runtime_scope_to_string(runtime_scope), rvalue);
5737 else
5738 log_syntax(unit, LOG_WARNING, filename, line, r,
5739 "Failed to parse %s=, ignoring: %s", lvalue, rvalue);
5740 return 0;
5741 }
5742
5743 return 0;
5744 }
5745
5746 int config_parse_pid_file(
5747 const char *unit,
5748 const char *filename,
5749 unsigned line,
5750 const char *section,
5751 unsigned section_line,
5752 const char *lvalue,
5753 int ltype,
5754 const char *rvalue,
5755 void *data,
5756 void *userdata) {
5757
5758 _cleanup_free_ char *k = NULL, *n = NULL;
5759 const Unit *u = ASSERT_PTR(userdata);
5760 char **s = data;
5761 int r;
5762
5763 assert(filename);
5764 assert(lvalue);
5765 assert(rvalue);
5766
5767 if (isempty(rvalue)) {
5768 /* An empty assignment removes already set value. */
5769 *s = mfree(*s);
5770 return 0;
5771 }
5772
5773 r = unit_path_printf(u, rvalue, &k);
5774 if (r < 0) {
5775 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue);
5776 return 0;
5777 }
5778
5779 /* If this is a relative path make it absolute by prefixing the /run */
5780 n = path_make_absolute(k, u->manager->prefix[EXEC_DIRECTORY_RUNTIME]);
5781 if (!n)
5782 return log_oom();
5783
5784 /* Check that the result is a sensible path */
5785 r = path_simplify_and_warn(n, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
5786 if (r < 0)
5787 return r;
5788
5789 r = patch_var_run(unit, filename, line, lvalue, &n);
5790 if (r < 0)
5791 return r;
5792
5793 free_and_replace(*s, n);
5794 return 0;
5795 }
5796
5797 int config_parse_exit_status(
5798 const char *unit,
5799 const char *filename,
5800 unsigned line,
5801 const char *section,
5802 unsigned section_line,
5803 const char *lvalue,
5804 int ltype,
5805 const char *rvalue,
5806 void *data,
5807 void *userdata) {
5808
5809 int *exit_status = data, r;
5810 uint8_t u;
5811
5812 assert(filename);
5813 assert(lvalue);
5814 assert(rvalue);
5815 assert(exit_status);
5816
5817 if (isempty(rvalue)) {
5818 *exit_status = -1;
5819 return 0;
5820 }
5821
5822 r = safe_atou8(rvalue, &u);
5823 if (r < 0) {
5824 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse exit status '%s', ignoring: %m", rvalue);
5825 return 0;
5826 }
5827
5828 *exit_status = u;
5829 return 0;
5830 }
5831
5832 int config_parse_disable_controllers(
5833 const char *unit,
5834 const char *filename,
5835 unsigned line,
5836 const char *section,
5837 unsigned section_line,
5838 const char *lvalue,
5839 int ltype,
5840 const char *rvalue,
5841 void *data,
5842 void *userdata) {
5843
5844 int r;
5845 CGroupContext *c = data;
5846 CGroupMask disabled_mask;
5847
5848 /* 1. If empty, make all controllers eligible for use again.
5849 * 2. If non-empty, merge all listed controllers, space separated. */
5850
5851 if (isempty(rvalue)) {
5852 c->disable_controllers = 0;
5853 return 0;
5854 }
5855
5856 r = cg_mask_from_string(rvalue, &disabled_mask);
5857 if (r < 0 || disabled_mask <= 0) {
5858 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid cgroup string: %s, ignoring", rvalue);
5859 return 0;
5860 }
5861
5862 c->disable_controllers |= disabled_mask;
5863
5864 return 0;
5865 }
5866
5867 int config_parse_ip_filter_bpf_progs(
5868 const char *unit,
5869 const char *filename,
5870 unsigned line,
5871 const char *section,
5872 unsigned section_line,
5873 const char *lvalue,
5874 int ltype,
5875 const char *rvalue,
5876 void *data,
5877 void *userdata) {
5878
5879 _cleanup_free_ char *resolved = NULL;
5880 const Unit *u = userdata;
5881 char ***paths = ASSERT_PTR(data);
5882 int r;
5883
5884 assert(filename);
5885 assert(lvalue);
5886 assert(rvalue);
5887
5888 if (isempty(rvalue)) {
5889 *paths = strv_free(*paths);
5890 return 0;
5891 }
5892
5893 r = unit_path_printf(u, rvalue, &resolved);
5894 if (r < 0) {
5895 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue);
5896 return 0;
5897 }
5898
5899 r = path_simplify_and_warn(resolved, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
5900 if (r < 0)
5901 return 0;
5902
5903 if (strv_contains(*paths, resolved))
5904 return 0;
5905
5906 r = strv_extend(paths, resolved);
5907 if (r < 0)
5908 return log_oom();
5909
5910 r = bpf_firewall_supported();
5911 if (r < 0)
5912 return r;
5913 if (r != BPF_FIREWALL_SUPPORTED_WITH_MULTI) {
5914 static bool warned = false;
5915
5916 log_full(warned ? LOG_DEBUG : LOG_WARNING,
5917 "File %s:%u configures an IP firewall with BPF programs (%s=%s), but the local system does not support BPF/cgroup based firewalling with multiple filters.\n"
5918 "Starting this unit will fail! (This warning is only shown for the first loaded unit using IP firewalling.)", filename, line, lvalue, rvalue);
5919
5920 warned = true;
5921 }
5922
5923 return 0;
5924 }
5925
5926 int config_parse_bpf_foreign_program(
5927 const char *unit,
5928 const char *filename,
5929 unsigned line,
5930 const char *section,
5931 unsigned section_line,
5932 const char *lvalue,
5933 int ltype,
5934 const char *rvalue,
5935 void *data,
5936 void *userdata) {
5937 _cleanup_free_ char *resolved = NULL, *word = NULL;
5938 CGroupContext *c = data;
5939 const char *p = ASSERT_PTR(rvalue);
5940 Unit *u = userdata;
5941 int attach_type, r;
5942
5943 assert(filename);
5944 assert(lvalue);
5945
5946 if (isempty(rvalue)) {
5947 while (c->bpf_foreign_programs)
5948 cgroup_context_remove_bpf_foreign_program(c, c->bpf_foreign_programs);
5949
5950 return 0;
5951 }
5952
5953 r = extract_first_word(&p, &word, ":", 0);
5954 if (r == -ENOMEM)
5955 return log_oom();
5956 if (r < 0) {
5957 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse foreign BPF program, ignoring: %s", rvalue);
5958 return 0;
5959 }
5960 if (r == 0 || isempty(p)) {
5961 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid syntax in %s=, ignoring: %s", lvalue, rvalue);
5962 return 0;
5963 }
5964
5965 attach_type = bpf_cgroup_attach_type_from_string(word);
5966 if (attach_type < 0) {
5967 log_syntax(unit, LOG_WARNING, filename, line, 0, "Unknown BPF attach type=%s, ignoring: %s", word, rvalue);
5968 return 0;
5969 }
5970
5971 r = unit_path_printf(u, p, &resolved);
5972 if (r < 0) {
5973 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %s", p, rvalue);
5974 return 0;
5975 }
5976
5977 r = path_simplify_and_warn(resolved, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
5978 if (r < 0)
5979 return 0;
5980
5981 r = cgroup_add_bpf_foreign_program(c, attach_type, resolved);
5982 if (r < 0)
5983 return log_error_errno(r, "Failed to add foreign BPF program to cgroup context: %m");
5984
5985 return 0;
5986 }
5987
5988 int config_parse_cgroup_socket_bind(
5989 const char *unit,
5990 const char *filename,
5991 unsigned line,
5992 const char *section,
5993 unsigned section_line,
5994 const char *lvalue,
5995 int ltype,
5996 const char *rvalue,
5997 void *data,
5998 void *userdata) {
5999 _cleanup_free_ CGroupSocketBindItem *item = NULL;
6000 CGroupSocketBindItem **head = data;
6001 uint16_t nr_ports, port_min;
6002 int af, ip_protocol, r;
6003
6004 if (isempty(rvalue)) {
6005 cgroup_context_remove_socket_bind(head);
6006 return 0;
6007 }
6008
6009 r = parse_socket_bind_item(rvalue, &af, &ip_protocol, &nr_ports, &port_min);
6010 if (r == -ENOMEM)
6011 return log_oom();
6012 if (r < 0) {
6013 log_syntax(unit, LOG_WARNING, filename, line, r,
6014 "Unable to parse %s= assignment, ignoring: %s", lvalue, rvalue);
6015 return 0;
6016 }
6017
6018 item = new(CGroupSocketBindItem, 1);
6019 if (!item)
6020 return log_oom();
6021 *item = (CGroupSocketBindItem) {
6022 .address_family = af,
6023 .ip_protocol = ip_protocol,
6024 .nr_ports = nr_ports,
6025 .port_min = port_min,
6026 };
6027
6028 LIST_PREPEND(socket_bind_items, *head, TAKE_PTR(item));
6029
6030 return 0;
6031 }
6032
6033 int config_parse_restrict_network_interfaces(
6034 const char *unit,
6035 const char *filename,
6036 unsigned line,
6037 const char *section,
6038 unsigned section_line,
6039 const char *lvalue,
6040 int ltype,
6041 const char *rvalue,
6042 void *data,
6043 void *userdata) {
6044 CGroupContext *c = ASSERT_PTR(data);
6045 bool is_allow_rule = true;
6046 int r;
6047
6048 assert(filename);
6049 assert(lvalue);
6050 assert(rvalue);
6051
6052 if (isempty(rvalue)) {
6053 /* Empty assignment resets the list */
6054 c->restrict_network_interfaces = set_free_free(c->restrict_network_interfaces);
6055 return 0;
6056 }
6057
6058 if (rvalue[0] == '~') {
6059 is_allow_rule = false;
6060 rvalue++;
6061 }
6062
6063 if (set_isempty(c->restrict_network_interfaces))
6064 /* Only initialize this when creating the set */
6065 c->restrict_network_interfaces_is_allow_list = is_allow_rule;
6066
6067 for (const char *p = rvalue;;) {
6068 _cleanup_free_ char *word = NULL;
6069
6070 r = extract_first_word(&p, &word, NULL, EXTRACT_UNQUOTE);
6071 if (r == 0)
6072 break;
6073 if (r == -ENOMEM)
6074 return log_oom();
6075 if (r < 0) {
6076 log_syntax(unit, LOG_WARNING, filename, line, r,
6077 "Trailing garbage in %s, ignoring: %s", lvalue, rvalue);
6078 break;
6079 }
6080
6081 if (!ifname_valid(word)) {
6082 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid interface name, ignoring: %s", word);
6083 continue;
6084 }
6085
6086 if (c->restrict_network_interfaces_is_allow_list != is_allow_rule)
6087 free(set_remove(c->restrict_network_interfaces, word));
6088 else {
6089 r = set_put_strdup(&c->restrict_network_interfaces, word);
6090 if (r < 0)
6091 return log_oom();
6092 }
6093 }
6094
6095 return 0;
6096 }
6097
6098 static int merge_by_names(Unit *u, Set *names, const char *id) {
6099 char *k;
6100 int r;
6101
6102 assert(u);
6103
6104 /* Let's try to add in all names that are aliases of this unit */
6105 while ((k = set_steal_first(names))) {
6106 _cleanup_free_ _unused_ char *free_k = k;
6107
6108 /* First try to merge in the other name into our unit */
6109 r = unit_merge_by_name(u, k);
6110 if (r < 0) {
6111 Unit *other;
6112
6113 /* Hmm, we couldn't merge the other unit into ours? Then let's try it the other way
6114 * round. */
6115
6116 other = manager_get_unit(u->manager, k);
6117 if (!other)
6118 return r; /* return previous failure */
6119
6120 r = unit_merge(other, u);
6121 if (r < 0)
6122 return r;
6123
6124 return merge_by_names(other, names, NULL);
6125 }
6126
6127 if (streq_ptr(id, k))
6128 unit_choose_id(u, id);
6129 }
6130
6131 return 0;
6132 }
6133
6134 int unit_load_fragment(Unit *u) {
6135 const char *fragment;
6136 _cleanup_set_free_free_ Set *names = NULL;
6137 int r;
6138
6139 assert(u);
6140 assert(u->load_state == UNIT_STUB);
6141 assert(u->id);
6142
6143 if (u->transient) {
6144 u->access_selinux_context = mfree(u->access_selinux_context);
6145 u->load_state = UNIT_LOADED;
6146 return 0;
6147 }
6148
6149 /* Possibly rebuild the fragment map to catch new units */
6150 r = unit_file_build_name_map(&u->manager->lookup_paths,
6151 &u->manager->unit_cache_timestamp_hash,
6152 &u->manager->unit_id_map,
6153 &u->manager->unit_name_map,
6154 &u->manager->unit_path_cache);
6155 if (r < 0)
6156 return log_error_errno(r, "Failed to rebuild name map: %m");
6157
6158 r = unit_file_find_fragment(u->manager->unit_id_map,
6159 u->manager->unit_name_map,
6160 u->id,
6161 &fragment,
6162 &names);
6163 if (r < 0 && r != -ENOENT)
6164 return r;
6165
6166 if (fragment) {
6167 /* Open the file, check if this is a mask, otherwise read. */
6168 _cleanup_fclose_ FILE *f = NULL;
6169 struct stat st;
6170
6171 /* Try to open the file name. A symlink is OK, for example for linked files or masks. We
6172 * expect that all symlinks within the lookup paths have been already resolved, but we don't
6173 * verify this here. */
6174 f = fopen(fragment, "re");
6175 if (!f)
6176 return log_unit_notice_errno(u, errno, "Failed to open %s: %m", fragment);
6177
6178 if (fstat(fileno(f), &st) < 0)
6179 return -errno;
6180
6181 r = free_and_strdup(&u->fragment_path, fragment);
6182 if (r < 0)
6183 return r;
6184
6185 if (null_or_empty(&st)) {
6186 /* Unit file is masked */
6187
6188 u->load_state = u->perpetual ? UNIT_LOADED : UNIT_MASKED; /* don't allow perpetual units to ever be masked */
6189 u->fragment_mtime = 0;
6190 u->access_selinux_context = mfree(u->access_selinux_context);
6191 } else {
6192 #if HAVE_SELINUX
6193 if (mac_selinux_use()) {
6194 _cleanup_freecon_ char *selcon = NULL;
6195
6196 /* Cache the SELinux context of the unit file here. We'll make use of when checking access permissions to loaded units */
6197 r = fgetfilecon_raw(fileno(f), &selcon);
6198 if (r < 0)
6199 log_unit_warning_errno(u, r, "Failed to read SELinux context of '%s', ignoring: %m", fragment);
6200
6201 r = free_and_strdup(&u->access_selinux_context, selcon);
6202 if (r < 0)
6203 return r;
6204 } else
6205 #endif
6206 u->access_selinux_context = mfree(u->access_selinux_context);
6207
6208 u->load_state = UNIT_LOADED;
6209 u->fragment_mtime = timespec_load(&st.st_mtim);
6210
6211 /* Now, parse the file contents */
6212 r = config_parse(u->id, fragment, f,
6213 UNIT_VTABLE(u)->sections,
6214 config_item_perf_lookup, load_fragment_gperf_lookup,
6215 0,
6216 u,
6217 NULL);
6218 if (r == -ENOEXEC)
6219 log_unit_notice_errno(u, r, "Unit configuration has fatal error, unit will not be started.");
6220 if (r < 0)
6221 return r;
6222 }
6223 }
6224
6225 /* Call merge_by_names with the name derived from the fragment path as the preferred name.
6226 *
6227 * We do the merge dance here because for some unit types, the unit might have aliases which are not
6228 * declared in the file system. In particular, this is true (and frequent) for device and swap units.
6229 */
6230 const char *id = u->id;
6231 _cleanup_free_ char *filename = NULL, *free_id = NULL;
6232
6233 if (fragment) {
6234 r = path_extract_filename(fragment, &filename);
6235 if (r < 0)
6236 return log_debug_errno(r, "Failed to extract filename from fragment '%s': %m", fragment);
6237 id = filename;
6238
6239 if (unit_name_is_valid(id, UNIT_NAME_TEMPLATE)) {
6240 assert(u->instance); /* If we're not trying to use a template for non-instanced unit,
6241 * this must be set. */
6242
6243 r = unit_name_replace_instance(id, u->instance, &free_id);
6244 if (r < 0)
6245 return log_debug_errno(r, "Failed to build id (%s + %s): %m", id, u->instance);
6246 id = free_id;
6247 }
6248 }
6249
6250 return merge_by_names(u, names, id);
6251 }
6252
6253 void unit_dump_config_items(FILE *f) {
6254 static const struct {
6255 const ConfigParserCallback callback;
6256 const char *rvalue;
6257 } table[] = {
6258 { config_parse_warn_compat, "NOTSUPPORTED" },
6259 { config_parse_int, "INTEGER" },
6260 { config_parse_unsigned, "UNSIGNED" },
6261 { config_parse_iec_size, "SIZE" },
6262 { config_parse_iec_uint64, "SIZE" },
6263 { config_parse_si_uint64, "SIZE" },
6264 { config_parse_bool, "BOOLEAN" },
6265 { config_parse_string, "STRING" },
6266 { config_parse_path, "PATH" },
6267 { config_parse_unit_path_printf, "PATH" },
6268 { config_parse_colon_separated_paths, "PATH" },
6269 { config_parse_strv, "STRING [...]" },
6270 { config_parse_exec_nice, "NICE" },
6271 { config_parse_exec_oom_score_adjust, "OOMSCOREADJUST" },
6272 { config_parse_exec_io_class, "IOCLASS" },
6273 { config_parse_exec_io_priority, "IOPRIORITY" },
6274 { config_parse_exec_cpu_sched_policy, "CPUSCHEDPOLICY" },
6275 { config_parse_exec_cpu_sched_prio, "CPUSCHEDPRIO" },
6276 { config_parse_exec_cpu_affinity, "CPUAFFINITY" },
6277 { config_parse_mode, "MODE" },
6278 { config_parse_unit_env_file, "FILE" },
6279 { config_parse_exec_output, "OUTPUT" },
6280 { config_parse_exec_input, "INPUT" },
6281 { config_parse_log_facility, "FACILITY" },
6282 { config_parse_log_level, "LEVEL" },
6283 { config_parse_exec_secure_bits, "SECUREBITS" },
6284 { config_parse_capability_set, "BOUNDINGSET" },
6285 { config_parse_rlimit, "LIMIT" },
6286 { config_parse_unit_deps, "UNIT [...]" },
6287 { config_parse_exec, "PATH [ARGUMENT [...]]" },
6288 { config_parse_service_type, "SERVICETYPE" },
6289 { config_parse_service_exit_type, "SERVICEEXITTYPE" },
6290 { config_parse_service_restart, "SERVICERESTART" },
6291 { config_parse_service_restart_mode, "SERVICERESTARTMODE" },
6292 { config_parse_service_timeout_failure_mode, "TIMEOUTMODE" },
6293 { config_parse_kill_mode, "KILLMODE" },
6294 { config_parse_signal, "SIGNAL" },
6295 { config_parse_socket_listen, "SOCKET [...]" },
6296 { config_parse_socket_bind, "SOCKETBIND" },
6297 { config_parse_socket_bindtodevice, "NETWORKINTERFACE" },
6298 { config_parse_sec, "SECONDS" },
6299 { config_parse_nsec, "NANOSECONDS" },
6300 { config_parse_namespace_path_strv, "PATH [...]" },
6301 { config_parse_bind_paths, "PATH[:PATH[:OPTIONS]] [...]" },
6302 { config_parse_unit_requires_mounts_for,
6303 "PATH [...]" },
6304 { config_parse_exec_mount_propagation_flag,
6305 "MOUNTFLAG" },
6306 { config_parse_unit_string_printf, "STRING" },
6307 { config_parse_trigger_unit, "UNIT" },
6308 { config_parse_timer, "TIMER" },
6309 { config_parse_path_spec, "PATH" },
6310 { config_parse_notify_access, "ACCESS" },
6311 { config_parse_ip_tos, "TOS" },
6312 { config_parse_unit_condition_path, "CONDITION" },
6313 { config_parse_unit_condition_string, "CONDITION" },
6314 { config_parse_unit_slice, "SLICE" },
6315 { config_parse_documentation, "URL" },
6316 { config_parse_service_timeout, "SECONDS" },
6317 { config_parse_emergency_action, "ACTION" },
6318 { config_parse_set_status, "STATUS" },
6319 { config_parse_service_sockets, "SOCKETS" },
6320 { config_parse_environ, "ENVIRON" },
6321 #if HAVE_SECCOMP
6322 { config_parse_syscall_filter, "SYSCALLS" },
6323 { config_parse_syscall_archs, "ARCHS" },
6324 { config_parse_syscall_errno, "ERRNO" },
6325 { config_parse_syscall_log, "SYSCALLS" },
6326 { config_parse_address_families, "FAMILIES" },
6327 { config_parse_restrict_namespaces, "NAMESPACES" },
6328 #endif
6329 { config_parse_restrict_filesystems, "FILESYSTEMS" },
6330 { config_parse_cpu_shares, "SHARES" },
6331 { config_parse_cg_weight, "WEIGHT" },
6332 { config_parse_cg_cpu_weight, "CPUWEIGHT" },
6333 { config_parse_memory_limit, "LIMIT" },
6334 { config_parse_device_allow, "DEVICE" },
6335 { config_parse_device_policy, "POLICY" },
6336 { config_parse_io_limit, "LIMIT" },
6337 { config_parse_io_device_weight, "DEVICEWEIGHT" },
6338 { config_parse_io_device_latency, "DEVICELATENCY" },
6339 { config_parse_blockio_bandwidth, "BANDWIDTH" },
6340 { config_parse_blockio_weight, "WEIGHT" },
6341 { config_parse_blockio_device_weight, "DEVICEWEIGHT" },
6342 { config_parse_long, "LONG" },
6343 { config_parse_socket_service, "SERVICE" },
6344 #if HAVE_SELINUX
6345 { config_parse_exec_selinux_context, "LABEL" },
6346 #endif
6347 { config_parse_job_mode, "MODE" },
6348 { config_parse_job_mode_isolate, "BOOLEAN" },
6349 { config_parse_personality, "PERSONALITY" },
6350 { config_parse_log_filter_patterns, "REGEX" },
6351 };
6352
6353 const char *prev = NULL;
6354
6355 assert(f);
6356
6357 NULSTR_FOREACH(i, load_fragment_gperf_nulstr) {
6358 const char *rvalue = "OTHER", *lvalue;
6359 const ConfigPerfItem *p;
6360 const char *dot;
6361
6362 assert_se(p = load_fragment_gperf_lookup(i, strlen(i)));
6363
6364 /* Hide legacy settings */
6365 if (p->parse == config_parse_warn_compat &&
6366 p->ltype == DISABLED_LEGACY)
6367 continue;
6368
6369 for (size_t j = 0; j < ELEMENTSOF(table); j++)
6370 if (p->parse == table[j].callback) {
6371 rvalue = table[j].rvalue;
6372 break;
6373 }
6374
6375 dot = strchr(i, '.');
6376 lvalue = dot ? dot + 1 : i;
6377
6378 if (dot) {
6379 size_t prefix_len = dot - i;
6380
6381 if (!prev || !strneq(prev, i, prefix_len+1)) {
6382 if (prev)
6383 fputc('\n', f);
6384
6385 fprintf(f, "[%.*s]\n", (int) prefix_len, i);
6386 }
6387 }
6388
6389 fprintf(f, "%s=%s\n", lvalue, rvalue);
6390 prev = i;
6391 }
6392 }
6393
6394 int config_parse_cpu_affinity2(
6395 const char *unit,
6396 const char *filename,
6397 unsigned line,
6398 const char *section,
6399 unsigned section_line,
6400 const char *lvalue,
6401 int ltype,
6402 const char *rvalue,
6403 void *data,
6404 void *userdata) {
6405
6406 CPUSet *affinity = ASSERT_PTR(data);
6407
6408 (void) parse_cpu_set_extend(rvalue, affinity, true, unit, filename, line, lvalue);
6409
6410 return 0;
6411 }
6412
6413 int config_parse_show_status(
6414 const char* unit,
6415 const char *filename,
6416 unsigned line,
6417 const char *section,
6418 unsigned section_line,
6419 const char *lvalue,
6420 int ltype,
6421 const char *rvalue,
6422 void *data,
6423 void *userdata) {
6424
6425 int k;
6426 ShowStatus *b = ASSERT_PTR(data);
6427
6428 assert(filename);
6429 assert(lvalue);
6430 assert(rvalue);
6431
6432 k = parse_show_status(rvalue, b);
6433 if (k < 0)
6434 log_syntax(unit, LOG_WARNING, filename, line, k, "Failed to parse show status setting, ignoring: %s", rvalue);
6435
6436 return 0;
6437 }
6438
6439 int config_parse_output_restricted(
6440 const char* unit,
6441 const char *filename,
6442 unsigned line,
6443 const char *section,
6444 unsigned section_line,
6445 const char *lvalue,
6446 int ltype,
6447 const char *rvalue,
6448 void *data,
6449 void *userdata) {
6450
6451 ExecOutput t, *eo = ASSERT_PTR(data);
6452 bool obsolete = false;
6453
6454 assert(filename);
6455 assert(lvalue);
6456 assert(rvalue);
6457
6458 if (streq(rvalue, "syslog")) {
6459 t = EXEC_OUTPUT_JOURNAL;
6460 obsolete = true;
6461 } else if (streq(rvalue, "syslog+console")) {
6462 t = EXEC_OUTPUT_JOURNAL_AND_CONSOLE;
6463 obsolete = true;
6464 } else {
6465 t = exec_output_from_string(rvalue);
6466 if (t < 0) {
6467 log_syntax(unit, LOG_WARNING, filename, line, t, "Failed to parse output type, ignoring: %s", rvalue);
6468 return 0;
6469 }
6470
6471 if (IN_SET(t, EXEC_OUTPUT_SOCKET, EXEC_OUTPUT_NAMED_FD, EXEC_OUTPUT_FILE, EXEC_OUTPUT_FILE_APPEND, EXEC_OUTPUT_FILE_TRUNCATE)) {
6472 log_syntax(unit, LOG_WARNING, filename, line, 0, "Standard output types socket, fd:, file:, append:, truncate: are not supported as defaults, ignoring: %s", rvalue);
6473 return 0;
6474 }
6475 }
6476
6477 if (obsolete)
6478 log_syntax(unit, LOG_NOTICE, filename, line, 0,
6479 "Standard output type %s is obsolete, automatically updating to %s. Please update your configuration.",
6480 rvalue, exec_output_to_string(t));
6481
6482 *eo = t;
6483 return 0;
6484 }
6485
6486 int config_parse_crash_chvt(
6487 const char* unit,
6488 const char *filename,
6489 unsigned line,
6490 const char *section,
6491 unsigned section_line,
6492 const char *lvalue,
6493 int ltype,
6494 const char *rvalue,
6495 void *data,
6496 void *userdata) {
6497
6498 int r;
6499
6500 assert(filename);
6501 assert(lvalue);
6502 assert(rvalue);
6503 assert(data);
6504
6505 r = parse_crash_chvt(rvalue, data);
6506 if (r < 0)
6507 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse CrashChangeVT= setting, ignoring: %s", rvalue);
6508
6509 return 0;
6510 }
6511
6512 int config_parse_swap_priority(
6513 const char *unit,
6514 const char *filename,
6515 unsigned line,
6516 const char *section,
6517 unsigned section_line,
6518 const char *lvalue,
6519 int ltype,
6520 const char *rvalue,
6521 void *data,
6522 void *userdata) {
6523
6524 Swap *s = ASSERT_PTR(userdata);
6525 int r, priority;
6526
6527 assert(filename);
6528 assert(lvalue);
6529 assert(rvalue);
6530 assert(data);
6531
6532 if (isempty(rvalue)) {
6533 s->parameters_fragment.priority = -1;
6534 s->parameters_fragment.priority_set = false;
6535 return 0;
6536 }
6537
6538 r = safe_atoi(rvalue, &priority);
6539 if (r < 0) {
6540 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid swap priority '%s', ignoring.", rvalue);
6541 return 0;
6542 }
6543
6544 if (priority < -1) {
6545 log_syntax(unit, LOG_WARNING, filename, line, 0, "Sorry, swap priorities smaller than -1 may only be assigned by the kernel itself, ignoring: %s", rvalue);
6546 return 0;
6547 }
6548
6549 if (priority > 32767) {
6550 log_syntax(unit, LOG_WARNING, filename, line, 0, "Swap priority out of range, ignoring: %s", rvalue);
6551 return 0;
6552 }
6553
6554 s->parameters_fragment.priority = priority;
6555 s->parameters_fragment.priority_set = true;
6556 return 0;
6557 }
6558
6559 int config_parse_watchdog_sec(
6560 const char *unit,
6561 const char *filename,
6562 unsigned line,
6563 const char *section,
6564 unsigned section_line,
6565 const char *lvalue,
6566 int ltype,
6567 const char *rvalue,
6568 void *data,
6569 void *userdata) {
6570
6571 usec_t *usec = data;
6572
6573 assert(filename);
6574 assert(lvalue);
6575 assert(rvalue);
6576
6577 /* This is called for {Runtime,Reboot,KExec}WatchdogSec= where "default" maps to
6578 * USEC_INFINITY internally. */
6579
6580 if (streq(rvalue, "default"))
6581 *usec = USEC_INFINITY;
6582 else if (streq(rvalue, "off"))
6583 *usec = 0;
6584 else
6585 return config_parse_sec(unit, filename, line, section, section_line, lvalue, ltype, rvalue, data, userdata);
6586
6587 return 0;
6588 }
6589
6590 int config_parse_tty_size(
6591 const char *unit,
6592 const char *filename,
6593 unsigned line,
6594 const char *section,
6595 unsigned section_line,
6596 const char *lvalue,
6597 int ltype,
6598 const char *rvalue,
6599 void *data,
6600 void *userdata) {
6601
6602 unsigned *sz = data;
6603
6604 assert(filename);
6605 assert(lvalue);
6606 assert(rvalue);
6607
6608 if (isempty(rvalue)) {
6609 *sz = UINT_MAX;
6610 return 0;
6611 }
6612
6613 return config_parse_unsigned(unit, filename, line, section, section_line, lvalue, ltype, rvalue, data, userdata);
6614 }
6615
6616 int config_parse_log_filter_patterns(
6617 const char *unit,
6618 const char *filename,
6619 unsigned line,
6620 const char *section,
6621 unsigned section_line,
6622 const char *lvalue,
6623 int ltype,
6624 const char *rvalue,
6625 void *data,
6626 void *userdata) {
6627
6628 ExecContext *c = ASSERT_PTR(data);
6629 const char *pattern = ASSERT_PTR(rvalue);
6630 bool is_allowlist = true;
6631 int r;
6632
6633 assert(filename);
6634 assert(lvalue);
6635
6636 if (isempty(pattern)) {
6637 /* Empty assignment resets the lists. */
6638 c->log_filter_allowed_patterns = set_free_free(c->log_filter_allowed_patterns);
6639 c->log_filter_denied_patterns = set_free_free(c->log_filter_denied_patterns);
6640 return 0;
6641 }
6642
6643 if (pattern[0] == '~') {
6644 is_allowlist = false;
6645 pattern++;
6646 if (isempty(pattern))
6647 /* LogFilterPatterns=~ is not considered a valid pattern. */
6648 return log_syntax(unit, LOG_WARNING, filename, line, 0,
6649 "Regex pattern invalid, ignoring: %s=%s", lvalue, rvalue);
6650 }
6651
6652 if (pattern_compile_and_log(pattern, 0, NULL) < 0)
6653 return 0;
6654
6655 r = set_put_strdup(is_allowlist ? &c->log_filter_allowed_patterns : &c->log_filter_denied_patterns,
6656 pattern);
6657 if (r < 0) {
6658 log_syntax(unit, LOG_WARNING, filename, line, r,
6659 "Failed to store log filtering pattern, ignoring: %s=%s", lvalue, rvalue);
6660 return 0;
6661 }
6662
6663 return 0;
6664 }
6665
6666 int config_parse_open_file(
6667 const char *unit,
6668 const char *filename,
6669 unsigned line,
6670 const char *section,
6671 unsigned section_line,
6672 const char *lvalue,
6673 int ltype,
6674 const char *rvalue,
6675 void *data,
6676 void *userdata) {
6677
6678 _cleanup_(open_file_freep) OpenFile *of = NULL;
6679 OpenFile **head = ASSERT_PTR(data);
6680 int r;
6681
6682 assert(filename);
6683 assert(lvalue);
6684 assert(rvalue);
6685
6686 if (isempty(rvalue)) {
6687 open_file_free_many(head);
6688 return 0;
6689 }
6690
6691 r = open_file_parse(rvalue, &of);
6692 if (r < 0) {
6693 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse OpenFile= setting, ignoring: %s", rvalue);
6694 return 0;
6695 }
6696
6697 LIST_APPEND(open_files, *head, TAKE_PTR(of));
6698
6699 return 0;
6700 }
6701
6702 int config_parse_cgroup_nft_set(
6703 const char *unit,
6704 const char *filename,
6705 unsigned line,
6706 const char *section,
6707 unsigned section_line,
6708 const char *lvalue,
6709 int ltype,
6710 const char *rvalue,
6711 void *data,
6712 void *userdata) {
6713
6714 CGroupContext *c = ASSERT_PTR(data);
6715 Unit *u = ASSERT_PTR(userdata);
6716
6717 return config_parse_nft_set(unit, filename, line, section, section_line, lvalue, ltype, rvalue, &c->nft_set_context, u);
6718 }
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