]> git.ipfire.org Git - thirdparty/systemd.git/blob - src/core/load-fragment.c
projects / thirdparty / systemd.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Merge pull request #23916 from keszybz/assorted-patches
[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 #if HAVE_SECCOMP
11 #include <seccomp.h>
12 #endif
13 #include <sched.h>
14 #include <sys/resource.h>
15
16 #include "sd-messages.h"
17
18 #include "af-list.h"
19 #include "all-units.h"
20 #include "alloc-util.h"
21 #include "bpf-firewall.h"
22 #include "bpf-lsm.h"
23 #include "bpf-program.h"
24 #include "bpf-socket-bind.h"
25 #include "bus-error.h"
26 #include "bus-internal.h"
27 #include "bus-util.h"
28 #include "cap-list.h"
29 #include "capability-util.h"
30 #include "cgroup-setup.h"
31 #include "conf-parser.h"
32 #include "core-varlink.h"
33 #include "cpu-set-util.h"
34 #include "creds-util.h"
35 #include "env-util.h"
36 #include "errno-list.h"
37 #include "escape.h"
38 #include "fd-util.h"
39 #include "fileio.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 "parse-helpers.h"
53 #include "parse-util.h"
54 #include "path-util.h"
55 #include "percent-util.h"
56 #include "process-util.h"
57 #if HAVE_SECCOMP
58 #include "seccomp-util.h"
59 #endif
60 #include "securebits-util.h"
61 #include "signal-util.h"
62 #include "socket-netlink.h"
63 #include "specifier.h"
64 #include "stat-util.h"
65 #include "string-util.h"
66 #include "strv.h"
67 #include "syslog-util.h"
68 #include "time-util.h"
69 #include "unit-name.h"
70 #include "unit-printf.h"
71 #include "user-util.h"
72 #include "utf8.h"
73 #include "web-util.h"
74
75 static int parse_socket_protocol(const char *s) {
76 int r;
77
78 r = parse_ip_protocol(s);
79 if (r < 0)
80 return r;
81 if (!IN_SET(r, IPPROTO_UDPLITE, IPPROTO_SCTP))
82 return -EPROTONOSUPPORT;
83
84 return r;
85 }
86
87 int parse_crash_chvt(const char *value, int *data) {
88 int b;
89
90 if (safe_atoi(value, data) >= 0)
91 return 0;
92
93 b = parse_boolean(value);
94 if (b < 0)
95 return b;
96
97 if (b > 0)
98 *data = 0; /* switch to where kmsg goes */
99 else
100 *data = -1; /* turn off switching */
101
102 return 0;
103 }
104
105 int parse_confirm_spawn(const char *value, char **console) {
106 char *s;
107 int r;
108
109 r = value ? parse_boolean(value) : 1;
110 if (r == 0) {
111 *console = NULL;
112 return 0;
113 } else if (r > 0) /* on with default tty */
114 s = strdup("/dev/console");
115 else if (is_path(value)) /* on with fully qualified path */
116 s = strdup(value);
117 else /* on with only a tty file name, not a fully qualified path */
118 s = path_join("/dev/", value);
119 if (!s)
120 return -ENOMEM;
121
122 *console = s;
123 return 0;
124 }
125
126 DEFINE_CONFIG_PARSE(config_parse_socket_protocol, parse_socket_protocol, "Failed to parse socket protocol");
127 DEFINE_CONFIG_PARSE(config_parse_exec_secure_bits, secure_bits_from_string, "Failed to parse secure bits");
128 DEFINE_CONFIG_PARSE_ENUM(config_parse_collect_mode, collect_mode, CollectMode, "Failed to parse garbage collection mode");
129 DEFINE_CONFIG_PARSE_ENUM(config_parse_device_policy, cgroup_device_policy, CGroupDevicePolicy, "Failed to parse device policy");
130 DEFINE_CONFIG_PARSE_ENUM(config_parse_exec_keyring_mode, exec_keyring_mode, ExecKeyringMode, "Failed to parse keyring mode");
131 DEFINE_CONFIG_PARSE_ENUM(config_parse_protect_proc, protect_proc, ProtectProc, "Failed to parse /proc/ protection mode");
132 DEFINE_CONFIG_PARSE_ENUM(config_parse_proc_subset, proc_subset, ProcSubset, "Failed to parse /proc/ subset mode");
133 DEFINE_CONFIG_PARSE_ENUM(config_parse_exec_utmp_mode, exec_utmp_mode, ExecUtmpMode, "Failed to parse utmp mode");
134 DEFINE_CONFIG_PARSE_ENUM(config_parse_job_mode, job_mode, JobMode, "Failed to parse job mode");
135 DEFINE_CONFIG_PARSE_ENUM(config_parse_notify_access, notify_access, NotifyAccess, "Failed to parse notify access specifier");
136 DEFINE_CONFIG_PARSE_ENUM(config_parse_protect_home, protect_home, ProtectHome, "Failed to parse protect home value");
137 DEFINE_CONFIG_PARSE_ENUM(config_parse_protect_system, protect_system, ProtectSystem, "Failed to parse protect system value");
138 DEFINE_CONFIG_PARSE_ENUM(config_parse_runtime_preserve_mode, exec_preserve_mode, ExecPreserveMode, "Failed to parse runtime directory preserve mode");
139 DEFINE_CONFIG_PARSE_ENUM(config_parse_service_type, service_type, ServiceType, "Failed to parse service type");
140 DEFINE_CONFIG_PARSE_ENUM(config_parse_service_exit_type, service_exit_type, ServiceExitType, "Failed to parse service exit type");
141 DEFINE_CONFIG_PARSE_ENUM(config_parse_service_restart, service_restart, ServiceRestart, "Failed to parse service restart specifier");
142 DEFINE_CONFIG_PARSE_ENUM(config_parse_service_timeout_failure_mode, service_timeout_failure_mode, ServiceTimeoutFailureMode, "Failed to parse timeout failure mode");
143 DEFINE_CONFIG_PARSE_ENUM(config_parse_socket_bind, socket_address_bind_ipv6_only_or_bool, SocketAddressBindIPv6Only, "Failed to parse bind IPv6 only value");
144 DEFINE_CONFIG_PARSE_ENUM(config_parse_oom_policy, oom_policy, OOMPolicy, "Failed to parse OOM policy");
145 DEFINE_CONFIG_PARSE_ENUM(config_parse_managed_oom_preference, managed_oom_preference, ManagedOOMPreference, "Failed to parse ManagedOOMPreference=");
146 DEFINE_CONFIG_PARSE_ENUM_WITH_DEFAULT(config_parse_ip_tos, ip_tos, int, -1, "Failed to parse IP TOS value");
147 DEFINE_CONFIG_PARSE_PTR(config_parse_blockio_weight, cg_blkio_weight_parse, uint64_t, "Invalid block IO weight");
148 DEFINE_CONFIG_PARSE_PTR(config_parse_cg_weight, cg_weight_parse, uint64_t, "Invalid weight");
149 DEFINE_CONFIG_PARSE_PTR(config_parse_cpu_shares, cg_cpu_shares_parse, uint64_t, "Invalid CPU shares");
150 DEFINE_CONFIG_PARSE_PTR(config_parse_exec_mount_flags, mount_propagation_flags_from_string, unsigned long, "Failed to parse mount flag");
151 DEFINE_CONFIG_PARSE_ENUM_WITH_DEFAULT(config_parse_numa_policy, mpol, int, -1, "Invalid NUMA policy type");
152 DEFINE_CONFIG_PARSE_ENUM(config_parse_status_unit_format, status_unit_format, StatusUnitFormat, "Failed to parse status unit format");
153 DEFINE_CONFIG_PARSE_ENUM_FULL(config_parse_socket_timestamping, socket_timestamping_from_string_harder, SocketTimestamping, "Failed to parse timestamping precision");
154
155 bool contains_instance_specifier_superset(const char *s) {
156 const char *p, *q;
157 bool percent = false;
158
159 assert(s);
160
161 p = strchr(s, '@');
162 if (!p)
163 return false;
164
165 p++; /* Skip '@' */
166
167 q = strrchr(p, '.');
168 if (!q)
169 q = p + strlen(p);
170
171 /* If the string is just the instance specifier, it's not a superset of the instance. */
172 if (memcmp_nn(p, q - p, "%i", strlen("%i")) == 0)
173 return false;
174
175 /* %i, %n and %N all expand to the instance or a superset of it. */
176 for (; p < q; p++) {
177 if (*p == '%')
178 percent = !percent;
179 else if (percent) {
180 if (IN_SET(*p, 'n', 'N', 'i'))
181 return true;
182 percent = false;
183 }
184 }
185
186 return false;
187 }
188
189 /* `name` is the rendered version of `format` via `unit_printf` or similar functions. */
190 int unit_is_likely_recursive_template_dependency(Unit *u, const char *name, const char *format) {
191 const char *fragment_path;
192 int r;
193
194 assert(u);
195 assert(name);
196
197 /* If a template unit has a direct dependency on itself that includes the unit instance as part of
198 * the template instance via a unit specifier (%i, %n or %N), this will almost certainly lead to
199 * infinite recursion as systemd will keep instantiating new instances of the template unit.
200 * https://github.com/systemd/systemd/issues/17602 shows a good example of how this can happen in
201 * practice. To guard against this, we check for templates that depend on themselves and have the
202 * instantiated unit instance included as part of the template instance of the dependency via a
203 * specifier.
204 *
205 * For example, if systemd-notify@.service depends on systemd-notify@%n.service, this will result in
206 * infinite recursion.
207 */
208
209 if (!unit_name_is_valid(name, UNIT_NAME_INSTANCE))
210 return false;
211
212 if (!unit_name_prefix_equal(u->id, name))
213 return false;
214
215 if (u->type != unit_name_to_type(name))
216 return false;
217
218 r = unit_file_find_fragment(u->manager->unit_id_map, u->manager->unit_name_map, name, &fragment_path, NULL);
219 if (r < 0)
220 return r;
221
222 /* Fragment paths should also be equal as a custom fragment for a specific template instance
223 * wouldn't necessarily lead to infinite recursion. */
224 if (!path_equal_ptr(u->fragment_path, fragment_path))
225 return false;
226
227 if (!contains_instance_specifier_superset(format))
228 return false;
229
230 return true;
231 }
232
233 int config_parse_unit_deps(
234 const char *unit,
235 const char *filename,
236 unsigned line,
237 const char *section,
238 unsigned section_line,
239 const char *lvalue,
240 int ltype,
241 const char *rvalue,
242 void *data,
243 void *userdata) {
244
245 UnitDependency d = ltype;
246 Unit *u = userdata;
247
248 assert(filename);
249 assert(lvalue);
250 assert(rvalue);
251
252 for (const char *p = rvalue;;) {
253 _cleanup_free_ char *word = NULL, *k = NULL;
254 int r;
255
256 r = extract_first_word(&p, &word, NULL, EXTRACT_RETAIN_ESCAPE);
257 if (r == 0)
258 return 0;
259 if (r == -ENOMEM)
260 return log_oom();
261 if (r < 0) {
262 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid syntax, ignoring: %s", rvalue);
263 return 0;
264 }
265
266 r = unit_name_printf(u, word, &k);
267 if (r < 0) {
268 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", word);
269 continue;
270 }
271
272 r = unit_is_likely_recursive_template_dependency(u, k, word);
273 if (r < 0) {
274 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to determine if '%s' is a recursive dependency, ignoring: %m", k);
275 continue;
276 }
277 if (r > 0) {
278 log_syntax(unit, LOG_DEBUG, filename, line, 0,
279 "Dropping dependency %s=%s that likely leads to infinite recursion.",
280 unit_dependency_to_string(d), word);
281 continue;
282 }
283
284 r = unit_add_dependency_by_name(u, d, k, true, UNIT_DEPENDENCY_FILE);
285 if (r < 0)
286 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to add dependency on %s, ignoring: %m", k);
287 }
288 }
289
290 int config_parse_obsolete_unit_deps(
291 const char *unit,
292 const char *filename,
293 unsigned line,
294 const char *section,
295 unsigned section_line,
296 const char *lvalue,
297 int ltype,
298 const char *rvalue,
299 void *data,
300 void *userdata) {
301
302 log_syntax(unit, LOG_WARNING, filename, line, 0,
303 "Unit dependency type %s= is obsolete, replacing by %s=, please update your unit file", lvalue, unit_dependency_to_string(ltype));
304
305 return config_parse_unit_deps(unit, filename, line, section, section_line, lvalue, ltype, rvalue, data, userdata);
306 }
307
308 int config_parse_unit_string_printf(
309 const char *unit,
310 const char *filename,
311 unsigned line,
312 const char *section,
313 unsigned section_line,
314 const char *lvalue,
315 int ltype,
316 const char *rvalue,
317 void *data,
318 void *userdata) {
319
320 _cleanup_free_ char *k = NULL;
321 const Unit *u = userdata;
322 int r;
323
324 assert(filename);
325 assert(lvalue);
326 assert(rvalue);
327 assert(u);
328
329 r = unit_full_printf(u, rvalue, &k);
330 if (r < 0) {
331 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue);
332 return 0;
333 }
334
335 return config_parse_string(unit, filename, line, section, section_line, lvalue, ltype, k, data, userdata);
336 }
337
338 int config_parse_unit_strv_printf(
339 const char *unit,
340 const char *filename,
341 unsigned line,
342 const char *section,
343 unsigned section_line,
344 const char *lvalue,
345 int ltype,
346 const char *rvalue,
347 void *data,
348 void *userdata) {
349
350 const Unit *u = userdata;
351 _cleanup_free_ char *k = NULL;
352 int r;
353
354 assert(filename);
355 assert(lvalue);
356 assert(rvalue);
357 assert(u);
358
359 r = unit_full_printf(u, rvalue, &k);
360 if (r < 0) {
361 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue);
362 return 0;
363 }
364
365 return config_parse_strv(unit, filename, line, section, section_line, lvalue, ltype, k, data, userdata);
366 }
367
368 int config_parse_unit_path_printf(
369 const char *unit,
370 const char *filename,
371 unsigned line,
372 const char *section,
373 unsigned section_line,
374 const char *lvalue,
375 int ltype,
376 const char *rvalue,
377 void *data,
378 void *userdata) {
379
380 _cleanup_free_ char *k = NULL;
381 const Unit *u = userdata;
382 int r;
383 bool fatal = ltype;
384
385 assert(filename);
386 assert(lvalue);
387 assert(rvalue);
388 assert(u);
389
390 r = unit_path_printf(u, rvalue, &k);
391 if (r < 0) {
392 log_syntax(unit, fatal ? LOG_ERR : LOG_WARNING, filename, line, r,
393 "Failed to resolve unit specifiers in '%s'%s: %m",
394 rvalue, fatal ? "" : ", ignoring");
395 return fatal ? -ENOEXEC : 0;
396 }
397
398 return config_parse_path(unit, filename, line, section, section_line, lvalue, ltype, k, data, userdata);
399 }
400
401 int config_parse_colon_separated_paths(
402 const char *unit,
403 const char *filename,
404 unsigned line,
405 const char *section,
406 unsigned section_line,
407 const char *lvalue,
408 int ltype,
409 const char *rvalue,
410 void *data,
411 void *userdata) {
412 char ***sv = data;
413 const Unit *u = userdata;
414 int r;
415
416 assert(filename);
417 assert(lvalue);
418 assert(rvalue);
419 assert(data);
420
421 if (isempty(rvalue)) {
422 /* Empty assignment resets the list */
423 *sv = strv_free(*sv);
424 return 0;
425 }
426
427 for (const char *p = rvalue;;) {
428 _cleanup_free_ char *word = NULL, *k = NULL;
429
430 r = extract_first_word(&p, &word, ":", EXTRACT_DONT_COALESCE_SEPARATORS);
431 if (r == -ENOMEM)
432 return log_oom();
433 if (r < 0) {
434 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to extract first word, ignoring: %s", rvalue);
435 return 0;
436 }
437 if (r == 0)
438 break;
439
440 r = unit_path_printf(u, word, &k);
441 if (r < 0) {
442 log_syntax(unit, LOG_WARNING, filename, line, r,
443 "Failed to resolve unit specifiers in '%s', ignoring: %m", word);
444 return 0;
445 }
446
447 r = path_simplify_and_warn(k, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
448 if (r < 0)
449 return 0;
450
451 r = strv_consume(sv, TAKE_PTR(k));
452 if (r < 0)
453 return log_oom();
454 }
455
456 return 0;
457 }
458
459 int config_parse_unit_path_strv_printf(
460 const char *unit,
461 const char *filename,
462 unsigned line,
463 const char *section,
464 unsigned section_line,
465 const char *lvalue,
466 int ltype,
467 const char *rvalue,
468 void *data,
469 void *userdata) {
470
471 char ***x = data;
472 const Unit *u = userdata;
473 int r;
474
475 assert(filename);
476 assert(lvalue);
477 assert(rvalue);
478 assert(u);
479
480 if (isempty(rvalue)) {
481 *x = strv_free(*x);
482 return 0;
483 }
484
485 for (const char *p = rvalue;;) {
486 _cleanup_free_ char *word = NULL, *k = NULL;
487
488 r = extract_first_word(&p, &word, NULL, EXTRACT_UNQUOTE);
489 if (r == 0)
490 return 0;
491 if (r == -ENOMEM)
492 return log_oom();
493 if (r < 0) {
494 log_syntax(unit, LOG_WARNING, filename, line, r,
495 "Invalid syntax, ignoring: %s", rvalue);
496 return 0;
497 }
498
499 r = unit_path_printf(u, word, &k);
500 if (r < 0) {
501 log_syntax(unit, LOG_WARNING, filename, line, r,
502 "Failed to resolve unit specifiers in '%s', ignoring: %m", word);
503 return 0;
504 }
505
506 r = path_simplify_and_warn(k, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
507 if (r < 0)
508 return 0;
509
510 r = strv_consume(x, TAKE_PTR(k));
511 if (r < 0)
512 return log_oom();
513 }
514 }
515
516 static int patch_var_run(
517 const char *unit,
518 const char *filename,
519 unsigned line,
520 const char *lvalue,
521 char **path) {
522
523 const char *e;
524 char *z;
525
526 e = path_startswith(*path, "/var/run/");
527 if (!e)
528 return 0;
529
530 z = path_join("/run/", e);
531 if (!z)
532 return log_oom();
533
534 log_syntax(unit, LOG_NOTICE, filename, line, 0,
535 "%s= references a path below legacy directory /var/run/, updating %s → %s; "
536 "please update the unit file accordingly.", lvalue, *path, z);
537
538 free_and_replace(*path, z);
539
540 return 1;
541 }
542
543 int config_parse_socket_listen(
544 const char *unit,
545 const char *filename,
546 unsigned line,
547 const char *section,
548 unsigned section_line,
549 const char *lvalue,
550 int ltype,
551 const char *rvalue,
552 void *data,
553 void *userdata) {
554
555 _cleanup_free_ SocketPort *p = NULL;
556 SocketPort *tail;
557 Socket *s;
558 int r;
559
560 assert(filename);
561 assert(lvalue);
562 assert(rvalue);
563 assert(data);
564
565 s = SOCKET(data);
566
567 if (isempty(rvalue)) {
568 /* An empty assignment removes all ports */
569 socket_free_ports(s);
570 return 0;
571 }
572
573 p = new0(SocketPort, 1);
574 if (!p)
575 return log_oom();
576
577 if (ltype != SOCKET_SOCKET) {
578 _cleanup_free_ char *k = NULL;
579
580 r = unit_path_printf(UNIT(s), rvalue, &k);
581 if (r < 0) {
582 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue);
583 return 0;
584 }
585
586 r = path_simplify_and_warn(k, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
587 if (r < 0)
588 return 0;
589
590 if (ltype == SOCKET_FIFO) {
591 r = patch_var_run(unit, filename, line, lvalue, &k);
592 if (r < 0)
593 return r;
594 }
595
596 free_and_replace(p->path, k);
597 p->type = ltype;
598
599 } else if (streq(lvalue, "ListenNetlink")) {
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 = socket_address_parse_netlink(&p->address, k);
609 if (r < 0) {
610 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse address value in '%s', ignoring: %m", k);
611 return 0;
612 }
613
614 p->type = SOCKET_SOCKET;
615
616 } else {
617 _cleanup_free_ char *k = NULL;
618
619 r = unit_path_printf(UNIT(s), rvalue, &k);
620 if (r < 0) {
621 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue);
622 return 0;
623 }
624
625 if (k[0] == '/') { /* Only for AF_UNIX file system sockets… */
626 r = patch_var_run(unit, filename, line, lvalue, &k);
627 if (r < 0)
628 return r;
629 }
630
631 r = socket_address_parse_and_warn(&p->address, k);
632 if (r < 0) {
633 if (r != -EAFNOSUPPORT)
634 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse address value in '%s', ignoring: %m", k);
635 return 0;
636 }
637
638 if (streq(lvalue, "ListenStream"))
639 p->address.type = SOCK_STREAM;
640 else if (streq(lvalue, "ListenDatagram"))
641 p->address.type = SOCK_DGRAM;
642 else {
643 assert(streq(lvalue, "ListenSequentialPacket"));
644 p->address.type = SOCK_SEQPACKET;
645 }
646
647 if (socket_address_family(&p->address) != AF_UNIX && p->address.type == SOCK_SEQPACKET) {
648 log_syntax(unit, LOG_WARNING, filename, line, 0, "Address family not supported, ignoring: %s", rvalue);
649 return 0;
650 }
651
652 p->type = SOCKET_SOCKET;
653 }
654
655 p->fd = -1;
656 p->auxiliary_fds = NULL;
657 p->n_auxiliary_fds = 0;
658 p->socket = s;
659
660 LIST_FIND_TAIL(port, s->ports, tail);
661 LIST_INSERT_AFTER(port, s->ports, tail, p);
662
663 p = NULL;
664
665 return 0;
666 }
667
668 int config_parse_exec_nice(
669 const char *unit,
670 const char *filename,
671 unsigned line,
672 const char *section,
673 unsigned section_line,
674 const char *lvalue,
675 int ltype,
676 const char *rvalue,
677 void *data,
678 void *userdata) {
679
680 ExecContext *c = data;
681 int priority, r;
682
683 assert(filename);
684 assert(lvalue);
685 assert(rvalue);
686 assert(data);
687
688 if (isempty(rvalue)) {
689 c->nice_set = false;
690 return 0;
691 }
692
693 r = parse_nice(rvalue, &priority);
694 if (r < 0) {
695 if (r == -ERANGE)
696 log_syntax(unit, LOG_WARNING, filename, line, r, "Nice priority out of range, ignoring: %s", rvalue);
697 else
698 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse nice priority '%s', ignoring: %m", rvalue);
699 return 0;
700 }
701
702 c->nice = priority;
703 c->nice_set = true;
704
705 return 0;
706 }
707
708 int config_parse_exec_oom_score_adjust(
709 const char* unit,
710 const char *filename,
711 unsigned line,
712 const char *section,
713 unsigned section_line,
714 const char *lvalue,
715 int ltype,
716 const char *rvalue,
717 void *data,
718 void *userdata) {
719
720 ExecContext *c = data;
721 int oa, r;
722
723 assert(filename);
724 assert(lvalue);
725 assert(rvalue);
726 assert(data);
727
728 if (isempty(rvalue)) {
729 c->oom_score_adjust_set = false;
730 return 0;
731 }
732
733 r = parse_oom_score_adjust(rvalue, &oa);
734 if (r < 0) {
735 if (r == -ERANGE)
736 log_syntax(unit, LOG_WARNING, filename, line, r, "OOM score adjust value out of range, ignoring: %s", rvalue);
737 else
738 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse the OOM score adjust value '%s', ignoring: %m", rvalue);
739 return 0;
740 }
741
742 c->oom_score_adjust = oa;
743 c->oom_score_adjust_set = true;
744
745 return 0;
746 }
747
748 int config_parse_exec_coredump_filter(
749 const char* unit,
750 const char *filename,
751 unsigned line,
752 const char *section,
753 unsigned section_line,
754 const char *lvalue,
755 int ltype,
756 const char *rvalue,
757 void *data,
758 void *userdata) {
759
760 ExecContext *c = data;
761 int r;
762
763 assert(filename);
764 assert(lvalue);
765 assert(rvalue);
766 assert(data);
767
768 if (isempty(rvalue)) {
769 c->coredump_filter = 0;
770 c->coredump_filter_set = false;
771 return 0;
772 }
773
774 uint64_t f;
775 r = coredump_filter_mask_from_string(rvalue, &f);
776 if (r < 0) {
777 log_syntax(unit, LOG_WARNING, filename, line, r,
778 "Failed to parse the CoredumpFilter=%s, ignoring: %m", rvalue);
779 return 0;
780 }
781
782 c->coredump_filter |= f;
783 c->oom_score_adjust_set = true;
784 return 0;
785 }
786
787 int config_parse_kill_mode(
788 const char* unit,
789 const char *filename,
790 unsigned line,
791 const char *section,
792 unsigned section_line,
793 const char *lvalue,
794 int ltype,
795 const char *rvalue,
796 void *data,
797 void *userdata) {
798
799 KillMode *k = data, m;
800
801 assert(filename);
802 assert(lvalue);
803 assert(rvalue);
804 assert(data);
805
806 if (isempty(rvalue)) {
807 *k = KILL_CONTROL_GROUP;
808 return 0;
809 }
810
811 m = kill_mode_from_string(rvalue);
812 if (m < 0) {
813 log_syntax(unit, LOG_WARNING, filename, line, m,
814 "Failed to parse kill mode specification, ignoring: %s", rvalue);
815 return 0;
816 }
817
818 if (m == KILL_NONE)
819 log_syntax(unit, LOG_WARNING, filename, line, 0,
820 "Unit configured to use KillMode=none. "
821 "This is unsafe, as it disables systemd's process lifecycle management for the service. "
822 "Please update your service to use a safer KillMode=, such as 'mixed' or 'control-group'. "
823 "Support for KillMode=none is deprecated and will eventually be removed.");
824
825 *k = m;
826 return 0;
827 }
828
829 int config_parse_exec(
830 const char *unit,
831 const char *filename,
832 unsigned line,
833 const char *section,
834 unsigned section_line,
835 const char *lvalue,
836 int ltype,
837 const char *rvalue,
838 void *data,
839 void *userdata) {
840
841 ExecCommand **e = data;
842 const Unit *u = userdata;
843 const char *p;
844 bool semicolon;
845 int r;
846
847 assert(filename);
848 assert(lvalue);
849 assert(rvalue);
850 assert(e);
851
852 e += ltype;
853
854 if (isempty(rvalue)) {
855 /* An empty assignment resets the list */
856 *e = exec_command_free_list(*e);
857 return 0;
858 }
859
860 p = rvalue;
861 do {
862 _cleanup_free_ char *path = NULL, *firstword = NULL;
863 ExecCommandFlags flags = 0;
864 bool ignore = false, separate_argv0 = false;
865 _cleanup_free_ ExecCommand *nce = NULL;
866 _cleanup_strv_free_ char **n = NULL;
867 size_t nlen = 0;
868 const char *f;
869
870 semicolon = false;
871
872 r = extract_first_word_and_warn(&p, &firstword, NULL, EXTRACT_UNQUOTE|EXTRACT_CUNESCAPE, unit, filename, line, rvalue);
873 if (r <= 0)
874 return 0;
875
876 /* A lone ";" is a separator. Let's make sure we don't treat it as an executable name. */
877 if (streq(firstword, ";")) {
878 semicolon = true;
879 continue;
880 }
881
882 f = firstword;
883 for (;;) {
884 /* We accept an absolute path as first argument. If it's prefixed with - and the path doesn't
885 * exist, we ignore it instead of erroring out; if it's prefixed with @, we allow overriding of
886 * argv[0]; if it's prefixed with :, we will not do environment variable substitution;
887 * if it's prefixed with +, it will be run with full privileges and no sandboxing; if
888 * it's prefixed with '!' we apply sandboxing, but do not change user/group credentials; if
889 * it's prefixed with '!!', then we apply user/group credentials if the kernel supports ambient
890 * capabilities -- if it doesn't we don't apply the credentials themselves, but do apply most
891 * other sandboxing, with some special exceptions for changing UID.
892 *
893 * The idea is that '!!' may be used to write services that can take benefit of systemd's
894 * UID/GID dropping if the kernel supports ambient creds, but provide an automatic fallback to
895 * privilege dropping within the daemon if the kernel does not offer that. */
896
897 if (*f == '-' && !(flags & EXEC_COMMAND_IGNORE_FAILURE)) {
898 flags |= EXEC_COMMAND_IGNORE_FAILURE;
899 ignore = true;
900 } else if (*f == '@' && !separate_argv0)
901 separate_argv0 = true;
902 else if (*f == ':' && !(flags & EXEC_COMMAND_NO_ENV_EXPAND))
903 flags |= EXEC_COMMAND_NO_ENV_EXPAND;
904 else if (*f == '+' && !(flags & (EXEC_COMMAND_FULLY_PRIVILEGED|EXEC_COMMAND_NO_SETUID|EXEC_COMMAND_AMBIENT_MAGIC)))
905 flags |= EXEC_COMMAND_FULLY_PRIVILEGED;
906 else if (*f == '!' && !(flags & (EXEC_COMMAND_FULLY_PRIVILEGED|EXEC_COMMAND_NO_SETUID|EXEC_COMMAND_AMBIENT_MAGIC)))
907 flags |= EXEC_COMMAND_NO_SETUID;
908 else if (*f == '!' && !(flags & (EXEC_COMMAND_FULLY_PRIVILEGED|EXEC_COMMAND_AMBIENT_MAGIC))) {
909 flags &= ~EXEC_COMMAND_NO_SETUID;
910 flags |= EXEC_COMMAND_AMBIENT_MAGIC;
911 } else
912 break;
913 f++;
914 }
915
916 r = unit_path_printf(u, f, &path);
917 if (r < 0) {
918 log_syntax(unit, ignore ? LOG_WARNING : LOG_ERR, filename, line, r,
919 "Failed to resolve unit specifiers in '%s'%s: %m",
920 f, ignore ? ", ignoring" : "");
921 return ignore ? 0 : -ENOEXEC;
922 }
923
924 if (isempty(path)) {
925 /* First word is either "-" or "@" with no command. */
926 log_syntax(unit, ignore ? LOG_WARNING : LOG_ERR, filename, line, 0,
927 "Empty path in command line%s: '%s'",
928 ignore ? ", ignoring" : "", rvalue);
929 return ignore ? 0 : -ENOEXEC;
930 }
931 if (!string_is_safe(path)) {
932 log_syntax(unit, ignore ? LOG_WARNING : LOG_ERR, filename, line, 0,
933 "Executable name contains special characters%s: %s",
934 ignore ? ", ignoring" : "", path);
935 return ignore ? 0 : -ENOEXEC;
936 }
937 if (endswith(path, "/")) {
938 log_syntax(unit, ignore ? LOG_WARNING : LOG_ERR, filename, line, 0,
939 "Executable path specifies a directory%s: %s",
940 ignore ? ", ignoring" : "", path);
941 return ignore ? 0 : -ENOEXEC;
942 }
943
944 if (!(path_is_absolute(path) ? path_is_valid(path) : filename_is_valid(path))) {
945 log_syntax(unit, ignore ? LOG_WARNING : LOG_ERR, filename, line, 0,
946 "Neither a valid executable name nor an absolute path%s: %s",
947 ignore ? ", ignoring" : "", path);
948 return ignore ? 0 : -ENOEXEC;
949 }
950
951 if (!separate_argv0) {
952 char *w = NULL;
953
954 if (!GREEDY_REALLOC0(n, nlen + 2))
955 return log_oom();
956
957 w = strdup(path);
958 if (!w)
959 return log_oom();
960 n[nlen++] = w;
961 n[nlen] = NULL;
962 }
963
964 path_simplify(path);
965
966 while (!isempty(p)) {
967 _cleanup_free_ char *word = NULL, *resolved = NULL;
968
969 /* Check explicitly for an unquoted semicolon as
970 * command separator token. */
971 if (p[0] == ';' && (!p[1] || strchr(WHITESPACE, p[1]))) {
972 p++;
973 p += strspn(p, WHITESPACE);
974 semicolon = true;
975 break;
976 }
977
978 /* Check for \; explicitly, to not confuse it with \\; or "\;" or "\\;" etc.
979 * extract_first_word() would return the same for all of those. */
980 if (p[0] == '\\' && p[1] == ';' && (!p[2] || strchr(WHITESPACE, p[2]))) {
981 char *w;
982
983 p += 2;
984 p += strspn(p, WHITESPACE);
985
986 if (!GREEDY_REALLOC0(n, nlen + 2))
987 return log_oom();
988
989 w = strdup(";");
990 if (!w)
991 return log_oom();
992 n[nlen++] = w;
993 n[nlen] = NULL;
994 continue;
995 }
996
997 r = extract_first_word_and_warn(&p, &word, NULL, EXTRACT_UNQUOTE|EXTRACT_CUNESCAPE, unit, filename, line, rvalue);
998 if (r == 0)
999 break;
1000 if (r < 0)
1001 return ignore ? 0 : -ENOEXEC;
1002
1003 r = unit_full_printf(u, word, &resolved);
1004 if (r < 0) {
1005 log_syntax(unit, ignore ? LOG_WARNING : LOG_ERR, filename, line, r,
1006 "Failed to resolve unit specifiers in %s%s: %m",
1007 word, ignore ? ", ignoring" : "");
1008 return ignore ? 0 : -ENOEXEC;
1009 }
1010
1011 if (!GREEDY_REALLOC(n, nlen + 2))
1012 return log_oom();
1013
1014 n[nlen++] = TAKE_PTR(resolved);
1015 n[nlen] = NULL;
1016 }
1017
1018 if (!n || !n[0]) {
1019 log_syntax(unit, ignore ? LOG_WARNING : LOG_ERR, filename, line, 0,
1020 "Empty executable name or zeroeth argument%s: %s",
1021 ignore ? ", ignoring" : "", rvalue);
1022 return ignore ? 0 : -ENOEXEC;
1023 }
1024
1025 nce = new0(ExecCommand, 1);
1026 if (!nce)
1027 return log_oom();
1028
1029 nce->argv = TAKE_PTR(n);
1030 nce->path = TAKE_PTR(path);
1031 nce->flags = flags;
1032
1033 exec_command_append_list(e, nce);
1034
1035 /* Do not _cleanup_free_ these. */
1036 nce = NULL;
1037
1038 rvalue = p;
1039 } while (semicolon);
1040
1041 return 0;
1042 }
1043
1044 int config_parse_socket_bindtodevice(
1045 const char* unit,
1046 const char *filename,
1047 unsigned line,
1048 const char *section,
1049 unsigned section_line,
1050 const char *lvalue,
1051 int ltype,
1052 const char *rvalue,
1053 void *data,
1054 void *userdata) {
1055
1056 Socket *s = data;
1057
1058 assert(filename);
1059 assert(lvalue);
1060 assert(rvalue);
1061 assert(data);
1062
1063 if (isempty(rvalue) || streq(rvalue, "*")) {
1064 s->bind_to_device = mfree(s->bind_to_device);
1065 return 0;
1066 }
1067
1068 if (!ifname_valid(rvalue)) {
1069 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid interface name, ignoring: %s", rvalue);
1070 return 0;
1071 }
1072
1073 return free_and_strdup_warn(&s->bind_to_device, rvalue);
1074 }
1075
1076 int config_parse_exec_input(
1077 const char *unit,
1078 const char *filename,
1079 unsigned line,
1080 const char *section,
1081 unsigned section_line,
1082 const char *lvalue,
1083 int ltype,
1084 const char *rvalue,
1085 void *data,
1086 void *userdata) {
1087
1088 ExecContext *c = data;
1089 const Unit *u = userdata;
1090 const char *n;
1091 ExecInput ei;
1092 int r;
1093
1094 assert(data);
1095 assert(filename);
1096 assert(line);
1097 assert(rvalue);
1098
1099 n = startswith(rvalue, "fd:");
1100 if (n) {
1101 _cleanup_free_ char *resolved = NULL;
1102
1103 r = unit_fd_printf(u, n, &resolved);
1104 if (r < 0) {
1105 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", n);
1106 return 0;
1107 }
1108
1109 if (isempty(resolved))
1110 resolved = mfree(resolved);
1111 else if (!fdname_is_valid(resolved)) {
1112 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid file descriptor name, ignoring: %s", resolved);
1113 return 0;
1114 }
1115
1116 free_and_replace(c->stdio_fdname[STDIN_FILENO], resolved);
1117
1118 ei = EXEC_INPUT_NAMED_FD;
1119
1120 } else if ((n = startswith(rvalue, "file:"))) {
1121 _cleanup_free_ char *resolved = NULL;
1122
1123 r = unit_path_printf(u, n, &resolved);
1124 if (r < 0) {
1125 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", n);
1126 return 0;
1127 }
1128
1129 r = path_simplify_and_warn(resolved, PATH_CHECK_ABSOLUTE | PATH_CHECK_FATAL, unit, filename, line, lvalue);
1130 if (r < 0)
1131 return 0;
1132
1133 free_and_replace(c->stdio_file[STDIN_FILENO], resolved);
1134
1135 ei = EXEC_INPUT_FILE;
1136
1137 } else {
1138 ei = exec_input_from_string(rvalue);
1139 if (ei < 0) {
1140 log_syntax(unit, LOG_WARNING, filename, line, ei, "Failed to parse input specifier, ignoring: %s", rvalue);
1141 return 0;
1142 }
1143 }
1144
1145 c->std_input = ei;
1146 return 0;
1147 }
1148
1149 int config_parse_exec_input_text(
1150 const char *unit,
1151 const char *filename,
1152 unsigned line,
1153 const char *section,
1154 unsigned section_line,
1155 const char *lvalue,
1156 int ltype,
1157 const char *rvalue,
1158 void *data,
1159 void *userdata) {
1160
1161 _cleanup_free_ char *unescaped = NULL, *resolved = NULL;
1162 ExecContext *c = data;
1163 const Unit *u = userdata;
1164 int r;
1165
1166 assert(data);
1167 assert(filename);
1168 assert(line);
1169 assert(rvalue);
1170
1171 if (isempty(rvalue)) {
1172 /* Reset if the empty string is assigned */
1173 c->stdin_data = mfree(c->stdin_data);
1174 c->stdin_data_size = 0;
1175 return 0;
1176 }
1177
1178 ssize_t l = cunescape(rvalue, 0, &unescaped);
1179 if (l < 0) {
1180 log_syntax(unit, LOG_WARNING, filename, line, l,
1181 "Failed to decode C escaped text '%s', ignoring: %m", rvalue);
1182 return 0;
1183 }
1184
1185 r = unit_full_printf_full(u, unescaped, EXEC_STDIN_DATA_MAX, &resolved);
1186 if (r < 0) {
1187 log_syntax(unit, LOG_WARNING, filename, line, r,
1188 "Failed to resolve unit specifiers in '%s', ignoring: %m", unescaped);
1189 return 0;
1190 }
1191
1192 size_t sz = strlen(resolved);
1193 if (c->stdin_data_size + sz + 1 < c->stdin_data_size || /* check for overflow */
1194 c->stdin_data_size + sz + 1 > EXEC_STDIN_DATA_MAX) {
1195 log_syntax(unit, LOG_WARNING, filename, line, 0,
1196 "Standard input data too large (%zu), maximum of %zu permitted, ignoring.",
1197 c->stdin_data_size + sz, (size_t) EXEC_STDIN_DATA_MAX);
1198 return 0;
1199 }
1200
1201 void *p = realloc(c->stdin_data, c->stdin_data_size + sz + 1);
1202 if (!p)
1203 return log_oom();
1204
1205 *((char*) mempcpy((char*) p + c->stdin_data_size, resolved, sz)) = '\n';
1206
1207 c->stdin_data = p;
1208 c->stdin_data_size += sz + 1;
1209
1210 return 0;
1211 }
1212
1213 int config_parse_exec_input_data(
1214 const char *unit,
1215 const char *filename,
1216 unsigned line,
1217 const char *section,
1218 unsigned section_line,
1219 const char *lvalue,
1220 int ltype,
1221 const char *rvalue,
1222 void *data,
1223 void *userdata) {
1224
1225 _cleanup_free_ void *p = NULL;
1226 ExecContext *c = data;
1227 size_t sz;
1228 void *q;
1229 int r;
1230
1231 assert(data);
1232 assert(filename);
1233 assert(line);
1234 assert(rvalue);
1235
1236 if (isempty(rvalue)) {
1237 /* Reset if the empty string is assigned */
1238 c->stdin_data = mfree(c->stdin_data);
1239 c->stdin_data_size = 0;
1240 return 0;
1241 }
1242
1243 r = unbase64mem(rvalue, SIZE_MAX, &p, &sz);
1244 if (r < 0) {
1245 log_syntax(unit, LOG_WARNING, filename, line, r,
1246 "Failed to decode base64 data, ignoring: %s", rvalue);
1247 return 0;
1248 }
1249
1250 assert(sz > 0);
1251
1252 if (c->stdin_data_size + sz < c->stdin_data_size || /* check for overflow */
1253 c->stdin_data_size + sz > EXEC_STDIN_DATA_MAX) {
1254 log_syntax(unit, LOG_WARNING, filename, line, 0,
1255 "Standard input data too large (%zu), maximum of %zu permitted, ignoring.",
1256 c->stdin_data_size + sz, (size_t) EXEC_STDIN_DATA_MAX);
1257 return 0;
1258 }
1259
1260 q = realloc(c->stdin_data, c->stdin_data_size + sz);
1261 if (!q)
1262 return log_oom();
1263
1264 memcpy((uint8_t*) q + c->stdin_data_size, p, sz);
1265
1266 c->stdin_data = q;
1267 c->stdin_data_size += sz;
1268
1269 return 0;
1270 }
1271
1272 int config_parse_exec_output(
1273 const char *unit,
1274 const char *filename,
1275 unsigned line,
1276 const char *section,
1277 unsigned section_line,
1278 const char *lvalue,
1279 int ltype,
1280 const char *rvalue,
1281 void *data,
1282 void *userdata) {
1283
1284 _cleanup_free_ char *resolved = NULL;
1285 const char *n;
1286 ExecContext *c = data;
1287 const Unit *u = userdata;
1288 bool obsolete = false;
1289 ExecOutput eo;
1290 int r;
1291
1292 assert(data);
1293 assert(filename);
1294 assert(line);
1295 assert(lvalue);
1296 assert(rvalue);
1297
1298 n = startswith(rvalue, "fd:");
1299 if (n) {
1300 r = unit_fd_printf(u, n, &resolved);
1301 if (r < 0) {
1302 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s: %m", n);
1303 return 0;
1304 }
1305
1306 if (isempty(resolved))
1307 resolved = mfree(resolved);
1308 else if (!fdname_is_valid(resolved)) {
1309 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid file descriptor name, ignoring: %s", resolved);
1310 return 0;
1311 }
1312
1313 eo = EXEC_OUTPUT_NAMED_FD;
1314
1315 } else if (streq(rvalue, "syslog")) {
1316 eo = EXEC_OUTPUT_JOURNAL;
1317 obsolete = true;
1318
1319 } else if (streq(rvalue, "syslog+console")) {
1320 eo = EXEC_OUTPUT_JOURNAL_AND_CONSOLE;
1321 obsolete = true;
1322
1323 } else if ((n = startswith(rvalue, "file:"))) {
1324
1325 r = unit_path_printf(u, n, &resolved);
1326 if (r < 0) {
1327 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", n);
1328 return 0;
1329 }
1330
1331 r = path_simplify_and_warn(resolved, PATH_CHECK_ABSOLUTE | PATH_CHECK_FATAL, unit, filename, line, lvalue);
1332 if (r < 0)
1333 return 0;
1334
1335 eo = EXEC_OUTPUT_FILE;
1336
1337 } else if ((n = startswith(rvalue, "append:"))) {
1338
1339 r = unit_path_printf(u, n, &resolved);
1340 if (r < 0) {
1341 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", n);
1342 return 0;
1343 }
1344
1345 r = path_simplify_and_warn(resolved, PATH_CHECK_ABSOLUTE | PATH_CHECK_FATAL, unit, filename, line, lvalue);
1346 if (r < 0)
1347 return 0;
1348
1349 eo = EXEC_OUTPUT_FILE_APPEND;
1350
1351 } else if ((n = startswith(rvalue, "truncate:"))) {
1352
1353 r = unit_path_printf(u, n, &resolved);
1354 if (r < 0) {
1355 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", n);
1356 return 0;
1357 }
1358
1359 r = path_simplify_and_warn(resolved, PATH_CHECK_ABSOLUTE | PATH_CHECK_FATAL, unit, filename, line, lvalue);
1360 if (r < 0)
1361 return 0;
1362
1363 eo = EXEC_OUTPUT_FILE_TRUNCATE;
1364 } else {
1365 eo = exec_output_from_string(rvalue);
1366 if (eo < 0) {
1367 log_syntax(unit, LOG_WARNING, filename, line, eo, "Failed to parse output specifier, ignoring: %s", rvalue);
1368 return 0;
1369 }
1370 }
1371
1372 if (obsolete)
1373 log_syntax(unit, LOG_NOTICE, filename, line, 0,
1374 "Standard output type %s is obsolete, automatically updating to %s. Please update your unit file, and consider removing the setting altogether.",
1375 rvalue, exec_output_to_string(eo));
1376
1377 if (streq(lvalue, "StandardOutput")) {
1378 if (eo == EXEC_OUTPUT_NAMED_FD)
1379 free_and_replace(c->stdio_fdname[STDOUT_FILENO], resolved);
1380 else
1381 free_and_replace(c->stdio_file[STDOUT_FILENO], resolved);
1382
1383 c->std_output = eo;
1384
1385 } else {
1386 assert(streq(lvalue, "StandardError"));
1387
1388 if (eo == EXEC_OUTPUT_NAMED_FD)
1389 free_and_replace(c->stdio_fdname[STDERR_FILENO], resolved);
1390 else
1391 free_and_replace(c->stdio_file[STDERR_FILENO], resolved);
1392
1393 c->std_error = eo;
1394 }
1395
1396 return 0;
1397 }
1398
1399 int config_parse_exec_io_class(const char *unit,
1400 const char *filename,
1401 unsigned line,
1402 const char *section,
1403 unsigned section_line,
1404 const char *lvalue,
1405 int ltype,
1406 const char *rvalue,
1407 void *data,
1408 void *userdata) {
1409
1410 ExecContext *c = data;
1411 int x;
1412
1413 assert(filename);
1414 assert(lvalue);
1415 assert(rvalue);
1416 assert(data);
1417
1418 if (isempty(rvalue)) {
1419 c->ioprio_set = false;
1420 c->ioprio = IOPRIO_DEFAULT_CLASS_AND_PRIO;
1421 return 0;
1422 }
1423
1424 x = ioprio_class_from_string(rvalue);
1425 if (x < 0) {
1426 log_syntax(unit, LOG_WARNING, filename, line, x, "Failed to parse IO scheduling class, ignoring: %s", rvalue);
1427 return 0;
1428 }
1429
1430 c->ioprio = ioprio_normalize(ioprio_prio_value(x, ioprio_prio_data(c->ioprio)));
1431 c->ioprio_set = true;
1432
1433 return 0;
1434 }
1435
1436 int config_parse_exec_io_priority(const char *unit,
1437 const char *filename,
1438 unsigned line,
1439 const char *section,
1440 unsigned section_line,
1441 const char *lvalue,
1442 int ltype,
1443 const char *rvalue,
1444 void *data,
1445 void *userdata) {
1446
1447 ExecContext *c = data;
1448 int i, r;
1449
1450 assert(filename);
1451 assert(lvalue);
1452 assert(rvalue);
1453 assert(data);
1454
1455 if (isempty(rvalue)) {
1456 c->ioprio_set = false;
1457 c->ioprio = IOPRIO_DEFAULT_CLASS_AND_PRIO;
1458 return 0;
1459 }
1460
1461 r = ioprio_parse_priority(rvalue, &i);
1462 if (r < 0) {
1463 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse IO priority, ignoring: %s", rvalue);
1464 return 0;
1465 }
1466
1467 c->ioprio = ioprio_normalize(ioprio_prio_value(ioprio_prio_class(c->ioprio), i));
1468 c->ioprio_set = true;
1469
1470 return 0;
1471 }
1472
1473 int config_parse_exec_cpu_sched_policy(const char *unit,
1474 const char *filename,
1475 unsigned line,
1476 const char *section,
1477 unsigned section_line,
1478 const char *lvalue,
1479 int ltype,
1480 const char *rvalue,
1481 void *data,
1482 void *userdata) {
1483
1484 ExecContext *c = data;
1485 int x;
1486
1487 assert(filename);
1488 assert(lvalue);
1489 assert(rvalue);
1490 assert(data);
1491
1492 if (isempty(rvalue)) {
1493 c->cpu_sched_set = false;
1494 c->cpu_sched_policy = SCHED_OTHER;
1495 c->cpu_sched_priority = 0;
1496 return 0;
1497 }
1498
1499 x = sched_policy_from_string(rvalue);
1500 if (x < 0) {
1501 log_syntax(unit, LOG_WARNING, filename, line, x, "Failed to parse CPU scheduling policy, ignoring: %s", rvalue);
1502 return 0;
1503 }
1504
1505 c->cpu_sched_policy = x;
1506 /* Moving to or from real-time policy? We need to adjust the priority */
1507 c->cpu_sched_priority = CLAMP(c->cpu_sched_priority, sched_get_priority_min(x), sched_get_priority_max(x));
1508 c->cpu_sched_set = true;
1509
1510 return 0;
1511 }
1512
1513 int config_parse_exec_mount_apivfs(const char *unit,
1514 const char *filename,
1515 unsigned line,
1516 const char *section,
1517 unsigned section_line,
1518 const char *lvalue,
1519 int ltype,
1520 const char *rvalue,
1521 void *data,
1522 void *userdata) {
1523
1524 ExecContext *c = data;
1525 int k;
1526
1527 assert(filename);
1528 assert(lvalue);
1529 assert(rvalue);
1530 assert(data);
1531
1532 if (isempty(rvalue)) {
1533 c->mount_apivfs_set = false;
1534 c->mount_apivfs = false;
1535 return 0;
1536 }
1537
1538 k = parse_boolean(rvalue);
1539 if (k < 0) {
1540 log_syntax(unit, LOG_WARNING, filename, line, k,
1541 "Failed to parse boolean value, ignoring: %s",
1542 rvalue);
1543 return 0;
1544 }
1545
1546 c->mount_apivfs_set = true;
1547 c->mount_apivfs = k;
1548 return 0;
1549 }
1550
1551 int config_parse_numa_mask(const char *unit,
1552 const char *filename,
1553 unsigned line,
1554 const char *section,
1555 unsigned section_line,
1556 const char *lvalue,
1557 int ltype,
1558 const char *rvalue,
1559 void *data,
1560 void *userdata) {
1561 int r;
1562 NUMAPolicy *p = data;
1563
1564 assert(filename);
1565 assert(lvalue);
1566 assert(rvalue);
1567 assert(data);
1568
1569 if (streq(rvalue, "all")) {
1570 r = numa_mask_add_all(&p->nodes);
1571 if (r < 0)
1572 log_syntax(unit, LOG_WARNING, filename, line, r,
1573 "Failed to create NUMA mask representing \"all\" NUMA nodes, ignoring: %m");
1574 } else {
1575 r = parse_cpu_set_extend(rvalue, &p->nodes, true, unit, filename, line, lvalue);
1576 if (r < 0)
1577 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse NUMA node mask, ignoring: %s", rvalue);
1578 }
1579
1580 return 0;
1581 }
1582
1583 int config_parse_exec_cpu_sched_prio(const char *unit,
1584 const char *filename,
1585 unsigned line,
1586 const char *section,
1587 unsigned section_line,
1588 const char *lvalue,
1589 int ltype,
1590 const char *rvalue,
1591 void *data,
1592 void *userdata) {
1593
1594 ExecContext *c = data;
1595 int i, min, max, r;
1596
1597 assert(filename);
1598 assert(lvalue);
1599 assert(rvalue);
1600 assert(data);
1601
1602 r = safe_atoi(rvalue, &i);
1603 if (r < 0) {
1604 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse CPU scheduling priority, ignoring: %s", rvalue);
1605 return 0;
1606 }
1607
1608 /* On Linux RR/FIFO range from 1 to 99 and OTHER/BATCH may only be 0 */
1609 min = sched_get_priority_min(c->cpu_sched_policy);
1610 max = sched_get_priority_max(c->cpu_sched_policy);
1611
1612 if (i < min || i > max) {
1613 log_syntax(unit, LOG_WARNING, filename, line, 0, "CPU scheduling priority is out of range, ignoring: %s", rvalue);
1614 return 0;
1615 }
1616
1617 c->cpu_sched_priority = i;
1618 c->cpu_sched_set = true;
1619
1620 return 0;
1621 }
1622
1623 int config_parse_root_image_options(
1624 const char *unit,
1625 const char *filename,
1626 unsigned line,
1627 const char *section,
1628 unsigned section_line,
1629 const char *lvalue,
1630 int ltype,
1631 const char *rvalue,
1632 void *data,
1633 void *userdata) {
1634
1635 _cleanup_(mount_options_free_allp) MountOptions *options = NULL;
1636 _cleanup_strv_free_ char **l = NULL;
1637 ExecContext *c = data;
1638 const Unit *u = userdata;
1639 int r;
1640
1641 assert(filename);
1642 assert(lvalue);
1643 assert(rvalue);
1644 assert(data);
1645
1646 if (isempty(rvalue)) {
1647 c->root_image_options = mount_options_free_all(c->root_image_options);
1648 return 0;
1649 }
1650
1651 r = strv_split_colon_pairs(&l, rvalue);
1652 if (r == -ENOMEM)
1653 return log_oom();
1654 if (r < 0) {
1655 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse %s, ignoring: %s", lvalue, rvalue);
1656 return 0;
1657 }
1658
1659 STRV_FOREACH_PAIR(first, second, l) {
1660 MountOptions *o = NULL;
1661 _cleanup_free_ char *mount_options_resolved = NULL;
1662 const char *mount_options = NULL, *partition = "root";
1663 PartitionDesignator partition_designator;
1664
1665 /* Format is either 'root:foo' or 'foo' (root is implied) */
1666 if (!isempty(*second)) {
1667 partition = *first;
1668 mount_options = *second;
1669 } else
1670 mount_options = *first;
1671
1672 partition_designator = partition_designator_from_string(partition);
1673 if (partition_designator < 0) {
1674 log_syntax(unit, LOG_WARNING, filename, line, partition_designator,
1675 "Invalid partition name %s, ignoring", partition);
1676 continue;
1677 }
1678 r = unit_full_printf(u, mount_options, &mount_options_resolved);
1679 if (r < 0) {
1680 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", mount_options);
1681 continue;
1682 }
1683
1684 o = new(MountOptions, 1);
1685 if (!o)
1686 return log_oom();
1687 *o = (MountOptions) {
1688 .partition_designator = partition_designator,
1689 .options = TAKE_PTR(mount_options_resolved),
1690 };
1691 LIST_APPEND(mount_options, options, TAKE_PTR(o));
1692 }
1693
1694 if (options)
1695 LIST_JOIN(mount_options, c->root_image_options, options);
1696 else
1697 /* empty spaces/separators only */
1698 c->root_image_options = mount_options_free_all(c->root_image_options);
1699
1700 return 0;
1701 }
1702
1703 int config_parse_exec_root_hash(
1704 const char *unit,
1705 const char *filename,
1706 unsigned line,
1707 const char *section,
1708 unsigned section_line,
1709 const char *lvalue,
1710 int ltype,
1711 const char *rvalue,
1712 void *data,
1713 void *userdata) {
1714
1715 _cleanup_free_ void *roothash_decoded = NULL;
1716 ExecContext *c = data;
1717 size_t roothash_decoded_size = 0;
1718 int r;
1719
1720 assert(data);
1721 assert(filename);
1722 assert(line);
1723 assert(rvalue);
1724
1725 if (isempty(rvalue)) {
1726 /* Reset if the empty string is assigned */
1727 c->root_hash_path = mfree(c->root_hash_path);
1728 c->root_hash = mfree(c->root_hash);
1729 c->root_hash_size = 0;
1730 return 0;
1731 }
1732
1733 if (path_is_absolute(rvalue)) {
1734 /* We have the path to a roothash to load and decode, eg: RootHash=/foo/bar.roothash */
1735 _cleanup_free_ char *p = NULL;
1736
1737 p = strdup(rvalue);
1738 if (!p)
1739 return -ENOMEM;
1740
1741 free_and_replace(c->root_hash_path, p);
1742 c->root_hash = mfree(c->root_hash);
1743 c->root_hash_size = 0;
1744 return 0;
1745 }
1746
1747 /* We have a roothash to decode, eg: RootHash=012345789abcdef */
1748 r = unhexmem(rvalue, strlen(rvalue), &roothash_decoded, &roothash_decoded_size);
1749 if (r < 0) {
1750 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to decode RootHash=, ignoring: %s", rvalue);
1751 return 0;
1752 }
1753 if (roothash_decoded_size < sizeof(sd_id128_t)) {
1754 log_syntax(unit, LOG_WARNING, filename, line, 0, "RootHash= is too short, ignoring: %s", rvalue);
1755 return 0;
1756 }
1757
1758 free_and_replace(c->root_hash, roothash_decoded);
1759 c->root_hash_size = roothash_decoded_size;
1760 c->root_hash_path = mfree(c->root_hash_path);
1761
1762 return 0;
1763 }
1764
1765 int config_parse_exec_root_hash_sig(
1766 const char *unit,
1767 const char *filename,
1768 unsigned line,
1769 const char *section,
1770 unsigned section_line,
1771 const char *lvalue,
1772 int ltype,
1773 const char *rvalue,
1774 void *data,
1775 void *userdata) {
1776
1777 _cleanup_free_ void *roothash_sig_decoded = NULL;
1778 char *value;
1779 ExecContext *c = data;
1780 size_t roothash_sig_decoded_size = 0;
1781 int r;
1782
1783 assert(data);
1784 assert(filename);
1785 assert(line);
1786 assert(rvalue);
1787
1788 if (isempty(rvalue)) {
1789 /* Reset if the empty string is assigned */
1790 c->root_hash_sig_path = mfree(c->root_hash_sig_path);
1791 c->root_hash_sig = mfree(c->root_hash_sig);
1792 c->root_hash_sig_size = 0;
1793 return 0;
1794 }
1795
1796 if (path_is_absolute(rvalue)) {
1797 /* We have the path to a roothash signature to load and decode, eg: RootHashSignature=/foo/bar.roothash.p7s */
1798 _cleanup_free_ char *p = NULL;
1799
1800 p = strdup(rvalue);
1801 if (!p)
1802 return log_oom();
1803
1804 free_and_replace(c->root_hash_sig_path, p);
1805 c->root_hash_sig = mfree(c->root_hash_sig);
1806 c->root_hash_sig_size = 0;
1807 return 0;
1808 }
1809
1810 if (!(value = startswith(rvalue, "base64:"))) {
1811 log_syntax(unit, LOG_WARNING, filename, line, 0,
1812 "Failed to decode RootHashSignature=, not a path but doesn't start with 'base64:', ignoring: %s", rvalue);
1813 return 0;
1814 }
1815
1816 /* We have a roothash signature to decode, eg: RootHashSignature=base64:012345789abcdef */
1817 r = unbase64mem(value, strlen(value), &roothash_sig_decoded, &roothash_sig_decoded_size);
1818 if (r < 0) {
1819 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to decode RootHashSignature=, ignoring: %s", rvalue);
1820 return 0;
1821 }
1822
1823 free_and_replace(c->root_hash_sig, roothash_sig_decoded);
1824 c->root_hash_sig_size = roothash_sig_decoded_size;
1825 c->root_hash_sig_path = mfree(c->root_hash_sig_path);
1826
1827 return 0;
1828 }
1829
1830 int config_parse_exec_cpu_affinity(
1831 const char *unit,
1832 const char *filename,
1833 unsigned line,
1834 const char *section,
1835 unsigned section_line,
1836 const char *lvalue,
1837 int ltype,
1838 const char *rvalue,
1839 void *data,
1840 void *userdata) {
1841
1842 ExecContext *c = data;
1843 const Unit *u = userdata;
1844 _cleanup_free_ char *k = NULL;
1845 int r;
1846
1847 assert(filename);
1848 assert(lvalue);
1849 assert(rvalue);
1850 assert(data);
1851
1852 if (streq(rvalue, "numa")) {
1853 c->cpu_affinity_from_numa = true;
1854 cpu_set_reset(&c->cpu_set);
1855
1856 return 0;
1857 }
1858
1859 r = unit_full_printf(u, rvalue, &k);
1860 if (r < 0) {
1861 log_syntax(unit, LOG_WARNING, filename, line, r,
1862 "Failed to resolve unit specifiers in '%s', ignoring: %m",
1863 rvalue);
1864 return 0;
1865 }
1866
1867 r = parse_cpu_set_extend(k, &c->cpu_set, true, unit, filename, line, lvalue);
1868 if (r >= 0)
1869 c->cpu_affinity_from_numa = false;
1870
1871 return 0;
1872 }
1873
1874 int config_parse_capability_set(
1875 const char *unit,
1876 const char *filename,
1877 unsigned line,
1878 const char *section,
1879 unsigned section_line,
1880 const char *lvalue,
1881 int ltype,
1882 const char *rvalue,
1883 void *data,
1884 void *userdata) {
1885
1886 uint64_t *capability_set = data;
1887 uint64_t sum = 0, initial = 0;
1888 bool invert = false;
1889 int r;
1890
1891 assert(filename);
1892 assert(lvalue);
1893 assert(rvalue);
1894 assert(data);
1895
1896 if (rvalue[0] == '~') {
1897 invert = true;
1898 rvalue++;
1899 }
1900
1901 if (streq(lvalue, "CapabilityBoundingSet"))
1902 initial = CAP_ALL; /* initialized to all bits on */
1903 /* else "AmbientCapabilities" initialized to all bits off */
1904
1905 r = capability_set_from_string(rvalue, &sum);
1906 if (r < 0) {
1907 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse %s= specifier '%s', ignoring: %m", lvalue, rvalue);
1908 return 0;
1909 }
1910
1911 if (sum == 0 || *capability_set == initial)
1912 /* "", "~" or uninitialized data -> replace */
1913 *capability_set = invert ? ~sum : sum;
1914 else {
1915 /* previous data -> merge */
1916 if (invert)
1917 *capability_set &= ~sum;
1918 else
1919 *capability_set |= sum;
1920 }
1921
1922 return 0;
1923 }
1924
1925 int config_parse_exec_selinux_context(
1926 const char *unit,
1927 const char *filename,
1928 unsigned line,
1929 const char *section,
1930 unsigned section_line,
1931 const char *lvalue,
1932 int ltype,
1933 const char *rvalue,
1934 void *data,
1935 void *userdata) {
1936
1937 ExecContext *c = data;
1938 const Unit *u = userdata;
1939 bool ignore;
1940 char *k;
1941 int r;
1942
1943 assert(filename);
1944 assert(lvalue);
1945 assert(rvalue);
1946 assert(data);
1947
1948 if (isempty(rvalue)) {
1949 c->selinux_context = mfree(c->selinux_context);
1950 c->selinux_context_ignore = false;
1951 return 0;
1952 }
1953
1954 if (rvalue[0] == '-') {
1955 ignore = true;
1956 rvalue++;
1957 } else
1958 ignore = false;
1959
1960 r = unit_full_printf(u, rvalue, &k);
1961 if (r < 0) {
1962 log_syntax(unit, ignore ? LOG_WARNING : LOG_ERR, filename, line, r,
1963 "Failed to resolve unit specifiers in '%s'%s: %m",
1964 rvalue, ignore ? ", ignoring" : "");
1965 return ignore ? 0 : -ENOEXEC;
1966 }
1967
1968 free_and_replace(c->selinux_context, k);
1969 c->selinux_context_ignore = ignore;
1970
1971 return 0;
1972 }
1973
1974 int config_parse_exec_apparmor_profile(
1975 const char *unit,
1976 const char *filename,
1977 unsigned line,
1978 const char *section,
1979 unsigned section_line,
1980 const char *lvalue,
1981 int ltype,
1982 const char *rvalue,
1983 void *data,
1984 void *userdata) {
1985
1986 ExecContext *c = data;
1987 const Unit *u = userdata;
1988 bool ignore;
1989 char *k;
1990 int r;
1991
1992 assert(filename);
1993 assert(lvalue);
1994 assert(rvalue);
1995 assert(data);
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 = 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 assert(data);
2045
2046 if (isempty(rvalue)) {
2047 c->smack_process_label = mfree(c->smack_process_label);
2048 c->smack_process_label_ignore = false;
2049 return 0;
2050 }
2051
2052 if (rvalue[0] == '-') {
2053 ignore = true;
2054 rvalue++;
2055 } else
2056 ignore = false;
2057
2058 r = unit_full_printf(u, rvalue, &k);
2059 if (r < 0) {
2060 log_syntax(unit, ignore ? LOG_WARNING : LOG_ERR, filename, line, r,
2061 "Failed to resolve unit specifiers in '%s'%s: %m",
2062 rvalue, ignore ? ", ignoring" : "");
2063 return ignore ? 0 : -ENOEXEC;
2064 }
2065
2066 free_and_replace(c->smack_process_label, k);
2067 c->smack_process_label_ignore = ignore;
2068
2069 return 0;
2070 }
2071
2072 int config_parse_timer(
2073 const char *unit,
2074 const char *filename,
2075 unsigned line,
2076 const char *section,
2077 unsigned section_line,
2078 const char *lvalue,
2079 int ltype,
2080 const char *rvalue,
2081 void *data,
2082 void *userdata) {
2083
2084 _cleanup_(calendar_spec_freep) CalendarSpec *c = NULL;
2085 _cleanup_free_ char *k = NULL;
2086 const Unit *u = userdata;
2087 Timer *t = data;
2088 usec_t usec = 0;
2089 TimerValue *v;
2090 int r;
2091
2092 assert(filename);
2093 assert(lvalue);
2094 assert(rvalue);
2095 assert(data);
2096
2097 if (isempty(rvalue)) {
2098 /* Empty assignment resets list */
2099 timer_free_values(t);
2100 return 0;
2101 }
2102
2103 r = unit_full_printf(u, rvalue, &k);
2104 if (r < 0) {
2105 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue);
2106 return 0;
2107 }
2108
2109 if (ltype == TIMER_CALENDAR) {
2110 r = calendar_spec_from_string(k, &c);
2111 if (r < 0) {
2112 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse calendar specification, ignoring: %s", k);
2113 return 0;
2114 }
2115 } else {
2116 r = parse_sec(k, &usec);
2117 if (r < 0) {
2118 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse timer value, ignoring: %s", k);
2119 return 0;
2120 }
2121 }
2122
2123 v = new(TimerValue, 1);
2124 if (!v)
2125 return log_oom();
2126
2127 *v = (TimerValue) {
2128 .base = ltype,
2129 .value = usec,
2130 .calendar_spec = TAKE_PTR(c),
2131 };
2132
2133 LIST_PREPEND(value, t->values, v);
2134
2135 return 0;
2136 }
2137
2138 int config_parse_trigger_unit(
2139 const char *unit,
2140 const char *filename,
2141 unsigned line,
2142 const char *section,
2143 unsigned section_line,
2144 const char *lvalue,
2145 int ltype,
2146 const char *rvalue,
2147 void *data,
2148 void *userdata) {
2149
2150 _cleanup_free_ char *p = NULL;
2151 Unit *u = data;
2152 UnitType type;
2153 int r;
2154
2155 assert(filename);
2156 assert(lvalue);
2157 assert(rvalue);
2158 assert(data);
2159
2160 if (UNIT_TRIGGER(u)) {
2161 log_syntax(unit, LOG_WARNING, filename, line, 0, "Multiple units to trigger specified, ignoring: %s", rvalue);
2162 return 0;
2163 }
2164
2165 r = unit_name_printf(u, rvalue, &p);
2166 if (r < 0) {
2167 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", rvalue);
2168 return 0;
2169 }
2170
2171 type = unit_name_to_type(p);
2172 if (type < 0) {
2173 log_syntax(unit, LOG_WARNING, filename, line, type, "Unit type not valid, ignoring: %s", rvalue);
2174 return 0;
2175 }
2176 if (unit_has_name(u, p)) {
2177 log_syntax(unit, LOG_WARNING, filename, line, 0, "Units cannot trigger themselves, ignoring: %s", rvalue);
2178 return 0;
2179 }
2180
2181 r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, UNIT_TRIGGERS, p, true, UNIT_DEPENDENCY_FILE);
2182 if (r < 0) {
2183 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to add trigger on %s, ignoring: %m", p);
2184 return 0;
2185 }
2186
2187 return 0;
2188 }
2189
2190 int config_parse_path_spec(const char *unit,
2191 const char *filename,
2192 unsigned line,
2193 const char *section,
2194 unsigned section_line,
2195 const char *lvalue,
2196 int ltype,
2197 const char *rvalue,
2198 void *data,
2199 void *userdata) {
2200
2201 Path *p = data;
2202 PathSpec *s;
2203 PathType b;
2204 _cleanup_free_ char *k = NULL;
2205 int r;
2206
2207 assert(filename);
2208 assert(lvalue);
2209 assert(rvalue);
2210 assert(data);
2211
2212 if (isempty(rvalue)) {
2213 /* Empty assignment clears list */
2214 path_free_specs(p);
2215 return 0;
2216 }
2217
2218 b = path_type_from_string(lvalue);
2219 if (b < 0) {
2220 log_syntax(unit, LOG_WARNING, filename, line, b, "Failed to parse path type, ignoring: %s", lvalue);
2221 return 0;
2222 }
2223
2224 r = unit_path_printf(UNIT(p), rvalue, &k);
2225 if (r < 0) {
2226 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", rvalue);
2227 return 0;
2228 }
2229
2230 r = path_simplify_and_warn(k, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
2231 if (r < 0)
2232 return 0;
2233
2234 s = new0(PathSpec, 1);
2235 if (!s)
2236 return log_oom();
2237
2238 s->unit = UNIT(p);
2239 s->path = TAKE_PTR(k);
2240 s->type = b;
2241 s->inotify_fd = -1;
2242
2243 LIST_PREPEND(spec, p->specs, s);
2244
2245 return 0;
2246 }
2247
2248 int config_parse_socket_service(
2249 const char *unit,
2250 const char *filename,
2251 unsigned line,
2252 const char *section,
2253 unsigned section_line,
2254 const char *lvalue,
2255 int ltype,
2256 const char *rvalue,
2257 void *data,
2258 void *userdata) {
2259
2260 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2261 _cleanup_free_ char *p = NULL;
2262 Socket *s = data;
2263 Unit *x;
2264 int r;
2265
2266 assert(filename);
2267 assert(lvalue);
2268 assert(rvalue);
2269 assert(data);
2270
2271 r = unit_name_printf(UNIT(s), rvalue, &p);
2272 if (r < 0) {
2273 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", rvalue);
2274 return 0;
2275 }
2276
2277 if (!endswith(p, ".service")) {
2278 log_syntax(unit, LOG_WARNING, filename, line, 0, "Unit must be of type service, ignoring: %s", rvalue);
2279 return 0;
2280 }
2281
2282 r = manager_load_unit(UNIT(s)->manager, p, NULL, &error, &x);
2283 if (r < 0) {
2284 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to load unit %s, ignoring: %s", rvalue, bus_error_message(&error, r));
2285 return 0;
2286 }
2287
2288 unit_ref_set(&s->service, UNIT(s), x);
2289
2290 return 0;
2291 }
2292
2293 int config_parse_fdname(
2294 const char *unit,
2295 const char *filename,
2296 unsigned line,
2297 const char *section,
2298 unsigned section_line,
2299 const char *lvalue,
2300 int ltype,
2301 const char *rvalue,
2302 void *data,
2303 void *userdata) {
2304
2305 _cleanup_free_ char *p = NULL;
2306 Socket *s = data;
2307 int r;
2308
2309 assert(filename);
2310 assert(lvalue);
2311 assert(rvalue);
2312 assert(data);
2313
2314 if (isempty(rvalue)) {
2315 s->fdname = mfree(s->fdname);
2316 return 0;
2317 }
2318
2319 r = unit_fd_printf(UNIT(s), rvalue, &p);
2320 if (r < 0) {
2321 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue);
2322 return 0;
2323 }
2324
2325 if (!fdname_is_valid(p)) {
2326 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid file descriptor name, ignoring: %s", p);
2327 return 0;
2328 }
2329
2330 return free_and_replace(s->fdname, p);
2331 }
2332
2333 int config_parse_service_sockets(
2334 const char *unit,
2335 const char *filename,
2336 unsigned line,
2337 const char *section,
2338 unsigned section_line,
2339 const char *lvalue,
2340 int ltype,
2341 const char *rvalue,
2342 void *data,
2343 void *userdata) {
2344
2345 Service *s = data;
2346 int r;
2347
2348 assert(filename);
2349 assert(lvalue);
2350 assert(rvalue);
2351 assert(data);
2352
2353 for (const char *p = rvalue;;) {
2354 _cleanup_free_ char *word = NULL, *k = NULL;
2355
2356 r = extract_first_word(&p, &word, NULL, 0);
2357 if (r == -ENOMEM)
2358 return log_oom();
2359 if (r < 0) {
2360 log_syntax(unit, LOG_WARNING, filename, line, r, "Trailing garbage in sockets, ignoring: %s", rvalue);
2361 return 0;
2362 }
2363 if (r == 0)
2364 return 0;
2365
2366 r = unit_name_printf(UNIT(s), word, &k);
2367 if (r < 0) {
2368 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", word);
2369 continue;
2370 }
2371
2372 if (!endswith(k, ".socket")) {
2373 log_syntax(unit, LOG_WARNING, filename, line, 0, "Unit must be of type socket, ignoring: %s", k);
2374 continue;
2375 }
2376
2377 r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_WANTS, UNIT_AFTER, k, true, UNIT_DEPENDENCY_FILE);
2378 if (r < 0)
2379 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to add dependency on %s, ignoring: %m", k);
2380
2381 r = unit_add_dependency_by_name(UNIT(s), UNIT_TRIGGERED_BY, k, true, UNIT_DEPENDENCY_FILE);
2382 if (r < 0)
2383 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to add dependency on %s, ignoring: %m", k);
2384 }
2385 }
2386
2387 int config_parse_bus_name(
2388 const char *unit,
2389 const char *filename,
2390 unsigned line,
2391 const char *section,
2392 unsigned section_line,
2393 const char *lvalue,
2394 int ltype,
2395 const char *rvalue,
2396 void *data,
2397 void *userdata) {
2398
2399 _cleanup_free_ char *k = NULL;
2400 const Unit *u = userdata;
2401 int r;
2402
2403 assert(filename);
2404 assert(lvalue);
2405 assert(rvalue);
2406 assert(u);
2407
2408 r = unit_full_printf_full(u, rvalue, SD_BUS_MAXIMUM_NAME_LENGTH, &k);
2409 if (r < 0) {
2410 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", rvalue);
2411 return 0;
2412 }
2413
2414 if (!sd_bus_service_name_is_valid(k)) {
2415 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid bus name, ignoring: %s", k);
2416 return 0;
2417 }
2418
2419 return config_parse_string(unit, filename, line, section, section_line, lvalue, ltype, k, data, userdata);
2420 }
2421
2422 int config_parse_service_timeout(
2423 const char *unit,
2424 const char *filename,
2425 unsigned line,
2426 const char *section,
2427 unsigned section_line,
2428 const char *lvalue,
2429 int ltype,
2430 const char *rvalue,
2431 void *data,
2432 void *userdata) {
2433
2434 Service *s = userdata;
2435 usec_t usec;
2436 int r;
2437
2438 assert(filename);
2439 assert(lvalue);
2440 assert(rvalue);
2441 assert(s);
2442
2443 /* This is called for two cases: TimeoutSec= and TimeoutStartSec=. */
2444
2445 /* Traditionally, these options accepted 0 to disable the timeouts. However, a timeout of 0 suggests it happens
2446 * immediately, hence fix this to become USEC_INFINITY instead. This is in-line with how we internally handle
2447 * all other timeouts. */
2448 r = parse_sec_fix_0(rvalue, &usec);
2449 if (r < 0) {
2450 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse %s= parameter, ignoring: %s", lvalue, rvalue);
2451 return 0;
2452 }
2453
2454 s->start_timeout_defined = true;
2455 s->timeout_start_usec = usec;
2456
2457 if (streq(lvalue, "TimeoutSec"))
2458 s->timeout_stop_usec = usec;
2459
2460 return 0;
2461 }
2462
2463 int config_parse_timeout_abort(
2464 const char *unit,
2465 const char *filename,
2466 unsigned line,
2467 const char *section,
2468 unsigned section_line,
2469 const char *lvalue,
2470 int ltype,
2471 const char *rvalue,
2472 void *data,
2473 void *userdata) {
2474
2475 usec_t *ret = data;
2476 int r;
2477
2478 assert(filename);
2479 assert(lvalue);
2480 assert(rvalue);
2481 assert(ret);
2482
2483 /* Note: apart from setting the arg, this returns an extra bit of information in the return value. */
2484
2485 if (isempty(rvalue)) {
2486 *ret = 0;
2487 return 0; /* "not set" */
2488 }
2489
2490 r = parse_sec(rvalue, ret);
2491 if (r < 0)
2492 return log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse %s= setting, ignoring: %s", lvalue, rvalue);
2493
2494 return 1; /* "set" */
2495 }
2496
2497 int config_parse_service_timeout_abort(
2498 const char *unit,
2499 const char *filename,
2500 unsigned line,
2501 const char *section,
2502 unsigned section_line,
2503 const char *lvalue,
2504 int ltype,
2505 const char *rvalue,
2506 void *data,
2507 void *userdata) {
2508
2509 Service *s = userdata;
2510 int r;
2511
2512 assert(s);
2513
2514 r = config_parse_timeout_abort(unit, filename, line, section, section_line, lvalue, ltype, rvalue,
2515 &s->timeout_abort_usec, s);
2516 if (r >= 0)
2517 s->timeout_abort_set = r;
2518 return 0;
2519 }
2520
2521 int config_parse_sec_fix_0(
2522 const char *unit,
2523 const char *filename,
2524 unsigned line,
2525 const char *section,
2526 unsigned section_line,
2527 const char *lvalue,
2528 int ltype,
2529 const char *rvalue,
2530 void *data,
2531 void *userdata) {
2532
2533 usec_t *usec = data;
2534 int r;
2535
2536 assert(filename);
2537 assert(lvalue);
2538 assert(rvalue);
2539 assert(usec);
2540
2541 /* This is pretty much like config_parse_sec(), except that this treats a time of 0 as infinity, for
2542 * compatibility with older versions of systemd where 0 instead of infinity was used as indicator to turn off a
2543 * timeout. */
2544
2545 r = parse_sec_fix_0(rvalue, usec);
2546 if (r < 0)
2547 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse %s= parameter, ignoring: %s", lvalue, rvalue);
2548
2549 return 0;
2550 }
2551
2552 int config_parse_user_group_compat(
2553 const char *unit,
2554 const char *filename,
2555 unsigned line,
2556 const char *section,
2557 unsigned section_line,
2558 const char *lvalue,
2559 int ltype,
2560 const char *rvalue,
2561 void *data,
2562 void *userdata) {
2563
2564 _cleanup_free_ char *k = NULL;
2565 char **user = data;
2566 const Unit *u = userdata;
2567 int r;
2568
2569 assert(filename);
2570 assert(lvalue);
2571 assert(rvalue);
2572 assert(u);
2573
2574 if (isempty(rvalue)) {
2575 *user = mfree(*user);
2576 return 0;
2577 }
2578
2579 r = unit_full_printf(u, rvalue, &k);
2580 if (r < 0) {
2581 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in %s: %m", rvalue);
2582 return -ENOEXEC;
2583 }
2584
2585 if (!valid_user_group_name(k, VALID_USER_ALLOW_NUMERIC|VALID_USER_RELAX|VALID_USER_WARN)) {
2586 log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid user/group name or numeric ID: %s", k);
2587 return -ENOEXEC;
2588 }
2589
2590 if (strstr(lvalue, "User") && streq(k, NOBODY_USER_NAME))
2591 log_struct(LOG_NOTICE,
2592 "MESSAGE=%s:%u: Special user %s configured, this is not safe!", filename, line, k,
2593 "UNIT=%s", unit,
2594 "MESSAGE_ID=" SD_MESSAGE_NOBODY_USER_UNSUITABLE_STR,
2595 "OFFENDING_USER=%s", k,
2596 "CONFIG_FILE=%s", filename,
2597 "CONFIG_LINE=%u", line);
2598
2599 return free_and_replace(*user, k);
2600 }
2601
2602 int config_parse_user_group_strv_compat(
2603 const char *unit,
2604 const char *filename,
2605 unsigned line,
2606 const char *section,
2607 unsigned section_line,
2608 const char *lvalue,
2609 int ltype,
2610 const char *rvalue,
2611 void *data,
2612 void *userdata) {
2613
2614 char ***users = data;
2615 const Unit *u = userdata;
2616 int r;
2617
2618 assert(filename);
2619 assert(lvalue);
2620 assert(rvalue);
2621 assert(u);
2622
2623 if (isempty(rvalue)) {
2624 *users = strv_free(*users);
2625 return 0;
2626 }
2627
2628 for (const char *p = rvalue;;) {
2629 _cleanup_free_ char *word = NULL, *k = NULL;
2630
2631 r = extract_first_word(&p, &word, NULL, 0);
2632 if (r == -ENOMEM)
2633 return log_oom();
2634 if (r < 0) {
2635 log_syntax(unit, LOG_ERR, filename, line, r, "Invalid syntax: %s", rvalue);
2636 return -ENOEXEC;
2637 }
2638 if (r == 0)
2639 return 0;
2640
2641 r = unit_full_printf(u, word, &k);
2642 if (r < 0) {
2643 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in %s: %m", word);
2644 return -ENOEXEC;
2645 }
2646
2647 if (!valid_user_group_name(k, VALID_USER_ALLOW_NUMERIC|VALID_USER_RELAX|VALID_USER_WARN)) {
2648 log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid user/group name or numeric ID: %s", k);
2649 return -ENOEXEC;
2650 }
2651
2652 r = strv_push(users, k);
2653 if (r < 0)
2654 return log_oom();
2655
2656 k = NULL;
2657 }
2658 }
2659
2660 int config_parse_working_directory(
2661 const char *unit,
2662 const char *filename,
2663 unsigned line,
2664 const char *section,
2665 unsigned section_line,
2666 const char *lvalue,
2667 int ltype,
2668 const char *rvalue,
2669 void *data,
2670 void *userdata) {
2671
2672 ExecContext *c = data;
2673 const Unit *u = userdata;
2674 bool missing_ok;
2675 int r;
2676
2677 assert(filename);
2678 assert(lvalue);
2679 assert(rvalue);
2680 assert(c);
2681 assert(u);
2682
2683 if (isempty(rvalue)) {
2684 c->working_directory_home = false;
2685 c->working_directory = mfree(c->working_directory);
2686 return 0;
2687 }
2688
2689 if (rvalue[0] == '-') {
2690 missing_ok = true;
2691 rvalue++;
2692 } else
2693 missing_ok = false;
2694
2695 if (streq(rvalue, "~")) {
2696 c->working_directory_home = true;
2697 c->working_directory = mfree(c->working_directory);
2698 } else {
2699 _cleanup_free_ char *k = NULL;
2700
2701 r = unit_path_printf(u, rvalue, &k);
2702 if (r < 0) {
2703 log_syntax(unit, missing_ok ? LOG_WARNING : LOG_ERR, filename, line, r,
2704 "Failed to resolve unit specifiers in working directory path '%s'%s: %m",
2705 rvalue, missing_ok ? ", ignoring" : "");
2706 return missing_ok ? 0 : -ENOEXEC;
2707 }
2708
2709 r = path_simplify_and_warn(k, PATH_CHECK_ABSOLUTE | (missing_ok ? 0 : PATH_CHECK_FATAL), unit, filename, line, lvalue);
2710 if (r < 0)
2711 return missing_ok ? 0 : -ENOEXEC;
2712
2713 c->working_directory_home = false;
2714 free_and_replace(c->working_directory, k);
2715 }
2716
2717 c->working_directory_missing_ok = missing_ok;
2718 return 0;
2719 }
2720
2721 int config_parse_unit_env_file(const char *unit,
2722 const char *filename,
2723 unsigned line,
2724 const char *section,
2725 unsigned section_line,
2726 const char *lvalue,
2727 int ltype,
2728 const char *rvalue,
2729 void *data,
2730 void *userdata) {
2731
2732 char ***env = data;
2733 const Unit *u = userdata;
2734 _cleanup_free_ char *n = NULL;
2735 int r;
2736
2737 assert(filename);
2738 assert(lvalue);
2739 assert(rvalue);
2740 assert(data);
2741
2742 if (isempty(rvalue)) {
2743 /* Empty assignment frees the list */
2744 *env = strv_free(*env);
2745 return 0;
2746 }
2747
2748 r = unit_full_printf_full(u, rvalue, PATH_MAX, &n);
2749 if (r < 0) {
2750 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue);
2751 return 0;
2752 }
2753
2754 r = path_simplify_and_warn(n[0] == '-' ? n + 1 : n, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
2755 if (r < 0)
2756 return 0;
2757
2758 r = strv_push(env, n);
2759 if (r < 0)
2760 return log_oom();
2761
2762 n = NULL;
2763
2764 return 0;
2765 }
2766
2767 int config_parse_environ(
2768 const char *unit,
2769 const char *filename,
2770 unsigned line,
2771 const char *section,
2772 unsigned section_line,
2773 const char *lvalue,
2774 int ltype,
2775 const char *rvalue,
2776 void *data,
2777 void *userdata) {
2778
2779 const Unit *u = userdata;
2780 char ***env = data;
2781 int r;
2782
2783 assert(filename);
2784 assert(lvalue);
2785 assert(rvalue);
2786 assert(data);
2787
2788 if (isempty(rvalue)) {
2789 /* Empty assignment resets the list */
2790 *env = strv_free(*env);
2791 return 0;
2792 }
2793
2794 for (const char *p = rvalue;; ) {
2795 _cleanup_free_ char *word = NULL, *resolved = NULL;
2796
2797 r = extract_first_word(&p, &word, NULL, EXTRACT_CUNESCAPE|EXTRACT_UNQUOTE);
2798 if (r == -ENOMEM)
2799 return log_oom();
2800 if (r < 0) {
2801 log_syntax(unit, LOG_WARNING, filename, line, r,
2802 "Invalid syntax, ignoring: %s", rvalue);
2803 return 0;
2804 }
2805 if (r == 0)
2806 return 0;
2807
2808 if (u)
2809 r = unit_env_printf(u, word, &resolved);
2810 else
2811 r = specifier_printf(word, sc_arg_max(), system_and_tmp_specifier_table, NULL, NULL, &resolved);
2812 if (r < 0) {
2813 log_syntax(unit, LOG_WARNING, filename, line, r,
2814 "Failed to resolve specifiers in %s, ignoring: %m", word);
2815 continue;
2816 }
2817
2818 if (!env_assignment_is_valid(resolved)) {
2819 log_syntax(unit, LOG_WARNING, filename, line, 0,
2820 "Invalid environment assignment, ignoring: %s", resolved);
2821 continue;
2822 }
2823
2824 r = strv_env_replace_consume(env, TAKE_PTR(resolved));
2825 if (r < 0)
2826 return log_error_errno(r, "Failed to update environment: %m");
2827 }
2828 }
2829
2830 int config_parse_pass_environ(
2831 const char *unit,
2832 const char *filename,
2833 unsigned line,
2834 const char *section,
2835 unsigned section_line,
2836 const char *lvalue,
2837 int ltype,
2838 const char *rvalue,
2839 void *data,
2840 void *userdata) {
2841
2842 _cleanup_strv_free_ char **n = NULL;
2843 const Unit *u = userdata;
2844 char*** passenv = data;
2845 size_t nlen = 0;
2846 int r;
2847
2848 assert(filename);
2849 assert(lvalue);
2850 assert(rvalue);
2851 assert(data);
2852
2853 if (isempty(rvalue)) {
2854 /* Empty assignment resets the list */
2855 *passenv = strv_free(*passenv);
2856 return 0;
2857 }
2858
2859 for (const char *p = rvalue;;) {
2860 _cleanup_free_ char *word = NULL, *k = NULL;
2861
2862 r = extract_first_word(&p, &word, NULL, EXTRACT_UNQUOTE);
2863 if (r == -ENOMEM)
2864 return log_oom();
2865 if (r < 0) {
2866 log_syntax(unit, LOG_WARNING, filename, line, r,
2867 "Trailing garbage in %s, ignoring: %s", lvalue, rvalue);
2868 break;
2869 }
2870 if (r == 0)
2871 break;
2872
2873 if (u) {
2874 r = unit_env_printf(u, word, &k);
2875 if (r < 0) {
2876 log_syntax(unit, LOG_WARNING, filename, line, r,
2877 "Failed to resolve specifiers in %s, ignoring: %m", word);
2878 continue;
2879 }
2880 } else
2881 k = TAKE_PTR(word);
2882
2883 if (!env_name_is_valid(k)) {
2884 log_syntax(unit, LOG_WARNING, filename, line, 0,
2885 "Invalid environment name for %s, ignoring: %s", lvalue, k);
2886 continue;
2887 }
2888
2889 if (!GREEDY_REALLOC(n, nlen + 2))
2890 return log_oom();
2891
2892 n[nlen++] = TAKE_PTR(k);
2893 n[nlen] = NULL;
2894 }
2895
2896 if (n) {
2897 r = strv_extend_strv(passenv, n, true);
2898 if (r < 0)
2899 return log_oom();
2900 }
2901
2902 return 0;
2903 }
2904
2905 int config_parse_unset_environ(
2906 const char *unit,
2907 const char *filename,
2908 unsigned line,
2909 const char *section,
2910 unsigned section_line,
2911 const char *lvalue,
2912 int ltype,
2913 const char *rvalue,
2914 void *data,
2915 void *userdata) {
2916
2917 _cleanup_strv_free_ char **n = NULL;
2918 char*** unsetenv = data;
2919 const Unit *u = userdata;
2920 size_t nlen = 0;
2921 int r;
2922
2923 assert(filename);
2924 assert(lvalue);
2925 assert(rvalue);
2926 assert(data);
2927
2928 if (isempty(rvalue)) {
2929 /* Empty assignment resets the list */
2930 *unsetenv = strv_free(*unsetenv);
2931 return 0;
2932 }
2933
2934 for (const char *p = rvalue;;) {
2935 _cleanup_free_ char *word = NULL, *k = NULL;
2936
2937 r = extract_first_word(&p, &word, NULL, EXTRACT_CUNESCAPE|EXTRACT_UNQUOTE);
2938 if (r == -ENOMEM)
2939 return log_oom();
2940 if (r < 0) {
2941 log_syntax(unit, LOG_WARNING, filename, line, r,
2942 "Trailing garbage in %s, ignoring: %s", lvalue, rvalue);
2943 break;
2944 }
2945 if (r == 0)
2946 break;
2947
2948 if (u) {
2949 r = unit_env_printf(u, word, &k);
2950 if (r < 0) {
2951 log_syntax(unit, LOG_WARNING, filename, line, r,
2952 "Failed to resolve unit specifiers in %s, ignoring: %m", word);
2953 continue;
2954 }
2955 } else
2956 k = TAKE_PTR(word);
2957
2958 if (!env_assignment_is_valid(k) && !env_name_is_valid(k)) {
2959 log_syntax(unit, LOG_WARNING, filename, line, 0,
2960 "Invalid environment name or assignment %s, ignoring: %s", lvalue, k);
2961 continue;
2962 }
2963
2964 if (!GREEDY_REALLOC(n, nlen + 2))
2965 return log_oom();
2966
2967 n[nlen++] = TAKE_PTR(k);
2968 n[nlen] = NULL;
2969 }
2970
2971 if (n) {
2972 r = strv_extend_strv(unsetenv, n, true);
2973 if (r < 0)
2974 return log_oom();
2975 }
2976
2977 return 0;
2978 }
2979
2980 int config_parse_log_extra_fields(
2981 const char *unit,
2982 const char *filename,
2983 unsigned line,
2984 const char *section,
2985 unsigned section_line,
2986 const char *lvalue,
2987 int ltype,
2988 const char *rvalue,
2989 void *data,
2990 void *userdata) {
2991
2992 ExecContext *c = data;
2993 const Unit *u = userdata;
2994 int r;
2995
2996 assert(filename);
2997 assert(lvalue);
2998 assert(rvalue);
2999 assert(c);
3000
3001 if (isempty(rvalue)) {
3002 exec_context_free_log_extra_fields(c);
3003 return 0;
3004 }
3005
3006 for (const char *p = rvalue;;) {
3007 _cleanup_free_ char *word = NULL, *k = NULL;
3008 struct iovec *t;
3009 const char *eq;
3010
3011 r = extract_first_word(&p, &word, NULL, EXTRACT_CUNESCAPE|EXTRACT_UNQUOTE);
3012 if (r == -ENOMEM)
3013 return log_oom();
3014 if (r < 0) {
3015 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid syntax, ignoring: %s", rvalue);
3016 return 0;
3017 }
3018 if (r == 0)
3019 return 0;
3020
3021 r = unit_full_printf(u, word, &k);
3022 if (r < 0) {
3023 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", word);
3024 continue;
3025 }
3026
3027 eq = strchr(k, '=');
3028 if (!eq) {
3029 log_syntax(unit, LOG_WARNING, filename, line, 0, "Log field lacks '=' character, ignoring: %s", k);
3030 continue;
3031 }
3032
3033 if (!journal_field_valid(k, eq-k, false)) {
3034 log_syntax(unit, LOG_WARNING, filename, line, 0, "Log field name is invalid, ignoring: %s", k);
3035 continue;
3036 }
3037
3038 t = reallocarray(c->log_extra_fields, c->n_log_extra_fields+1, sizeof(struct iovec));
3039 if (!t)
3040 return log_oom();
3041
3042 c->log_extra_fields = t;
3043 c->log_extra_fields[c->n_log_extra_fields++] = IOVEC_MAKE_STRING(k);
3044
3045 k = NULL;
3046 }
3047 }
3048
3049 int config_parse_log_namespace(
3050 const char *unit,
3051 const char *filename,
3052 unsigned line,
3053 const char *section,
3054 unsigned section_line,
3055 const char *lvalue,
3056 int ltype,
3057 const char *rvalue,
3058 void *data,
3059 void *userdata) {
3060
3061 _cleanup_free_ char *k = NULL;
3062 ExecContext *c = data;
3063 const Unit *u = userdata;
3064 int r;
3065
3066 assert(filename);
3067 assert(lvalue);
3068 assert(rvalue);
3069 assert(c);
3070
3071 if (isempty(rvalue)) {
3072 c->log_namespace = mfree(c->log_namespace);
3073 return 0;
3074 }
3075
3076 r = unit_full_printf_full(u, rvalue, NAME_MAX, &k);
3077 if (r < 0) {
3078 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", rvalue);
3079 return 0;
3080 }
3081
3082 if (!log_namespace_name_valid(k)) {
3083 log_syntax(unit, LOG_WARNING, filename, line, 0, "Specified log namespace name is not valid, ignoring: %s", k);
3084 return 0;
3085 }
3086
3087 free_and_replace(c->log_namespace, k);
3088 return 0;
3089 }
3090
3091 int config_parse_unit_condition_path(
3092 const char *unit,
3093 const char *filename,
3094 unsigned line,
3095 const char *section,
3096 unsigned section_line,
3097 const char *lvalue,
3098 int ltype,
3099 const char *rvalue,
3100 void *data,
3101 void *userdata) {
3102
3103 _cleanup_free_ char *p = NULL;
3104 Condition **list = data, *c;
3105 ConditionType t = ltype;
3106 bool trigger, negate;
3107 const Unit *u = userdata;
3108 int r;
3109
3110 assert(filename);
3111 assert(lvalue);
3112 assert(rvalue);
3113 assert(data);
3114
3115 if (isempty(rvalue)) {
3116 /* Empty assignment resets the list */
3117 *list = condition_free_list(*list);
3118 return 0;
3119 }
3120
3121 trigger = rvalue[0] == '|';
3122 if (trigger)
3123 rvalue++;
3124
3125 negate = rvalue[0] == '!';
3126 if (negate)
3127 rvalue++;
3128
3129 r = unit_path_printf(u, rvalue, &p);
3130 if (r < 0) {
3131 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", rvalue);
3132 return 0;
3133 }
3134
3135 r = path_simplify_and_warn(p, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
3136 if (r < 0)
3137 return 0;
3138
3139 c = condition_new(t, p, trigger, negate);
3140 if (!c)
3141 return log_oom();
3142
3143 LIST_PREPEND(conditions, *list, c);
3144 return 0;
3145 }
3146
3147 int config_parse_unit_condition_string(
3148 const char *unit,
3149 const char *filename,
3150 unsigned line,
3151 const char *section,
3152 unsigned section_line,
3153 const char *lvalue,
3154 int ltype,
3155 const char *rvalue,
3156 void *data,
3157 void *userdata) {
3158
3159 _cleanup_free_ char *s = NULL;
3160 Condition **list = data, *c;
3161 ConditionType t = ltype;
3162 bool trigger, negate;
3163 const Unit *u = userdata;
3164 int r;
3165
3166 assert(filename);
3167 assert(lvalue);
3168 assert(rvalue);
3169 assert(data);
3170
3171 if (isempty(rvalue)) {
3172 /* Empty assignment resets the list */
3173 *list = condition_free_list(*list);
3174 return 0;
3175 }
3176
3177 trigger = *rvalue == '|';
3178 if (trigger)
3179 rvalue += 1 + strspn(rvalue + 1, WHITESPACE);
3180
3181 negate = *rvalue == '!';
3182 if (negate)
3183 rvalue += 1 + strspn(rvalue + 1, WHITESPACE);
3184
3185 r = unit_full_printf(u, rvalue, &s);
3186 if (r < 0) {
3187 log_syntax(unit, LOG_WARNING, filename, line, r,
3188 "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue);
3189 return 0;
3190 }
3191
3192 c = condition_new(t, s, trigger, negate);
3193 if (!c)
3194 return log_oom();
3195
3196 LIST_PREPEND(conditions, *list, c);
3197 return 0;
3198 }
3199
3200 int config_parse_unit_requires_mounts_for(
3201 const char *unit,
3202 const char *filename,
3203 unsigned line,
3204 const char *section,
3205 unsigned section_line,
3206 const char *lvalue,
3207 int ltype,
3208 const char *rvalue,
3209 void *data,
3210 void *userdata) {
3211
3212 Unit *u = userdata;
3213 int r;
3214
3215 assert(filename);
3216 assert(lvalue);
3217 assert(rvalue);
3218 assert(data);
3219
3220 for (const char *p = rvalue;;) {
3221 _cleanup_free_ char *word = NULL, *resolved = NULL;
3222
3223 r = extract_first_word(&p, &word, NULL, EXTRACT_UNQUOTE);
3224 if (r == -ENOMEM)
3225 return log_oom();
3226 if (r < 0) {
3227 log_syntax(unit, LOG_WARNING, filename, line, r,
3228 "Invalid syntax, ignoring: %s", rvalue);
3229 return 0;
3230 }
3231 if (r == 0)
3232 return 0;
3233
3234 r = unit_path_printf(u, word, &resolved);
3235 if (r < 0) {
3236 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", word);
3237 continue;
3238 }
3239
3240 r = path_simplify_and_warn(resolved, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
3241 if (r < 0)
3242 continue;
3243
3244 r = unit_require_mounts_for(u, resolved, UNIT_DEPENDENCY_FILE);
3245 if (r < 0) {
3246 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to add required mount '%s', ignoring: %m", resolved);
3247 continue;
3248 }
3249 }
3250 }
3251
3252 int config_parse_documentation(
3253 const char *unit,
3254 const char *filename,
3255 unsigned line,
3256 const char *section,
3257 unsigned section_line,
3258 const char *lvalue,
3259 int ltype,
3260 const char *rvalue,
3261 void *data,
3262 void *userdata) {
3263
3264 Unit *u = userdata;
3265 int r;
3266 char **a, **b;
3267
3268 assert(filename);
3269 assert(lvalue);
3270 assert(rvalue);
3271 assert(u);
3272
3273 if (isempty(rvalue)) {
3274 /* Empty assignment resets the list */
3275 u->documentation = strv_free(u->documentation);
3276 return 0;
3277 }
3278
3279 r = config_parse_unit_strv_printf(unit, filename, line, section, section_line, lvalue, ltype,
3280 rvalue, data, userdata);
3281 if (r < 0)
3282 return r;
3283
3284 for (a = b = u->documentation; a && *a; a++) {
3285
3286 if (documentation_url_is_valid(*a))
3287 *(b++) = *a;
3288 else {
3289 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid URL, ignoring: %s", *a);
3290 free(*a);
3291 }
3292 }
3293 if (b)
3294 *b = NULL;
3295
3296 return 0;
3297 }
3298
3299 #if HAVE_SECCOMP
3300 int config_parse_syscall_filter(
3301 const char *unit,
3302 const char *filename,
3303 unsigned line,
3304 const char *section,
3305 unsigned section_line,
3306 const char *lvalue,
3307 int ltype,
3308 const char *rvalue,
3309 void *data,
3310 void *userdata) {
3311
3312 ExecContext *c = data;
3313 _unused_ const Unit *u = userdata;
3314 bool invert = false;
3315 int r;
3316
3317 assert(filename);
3318 assert(lvalue);
3319 assert(rvalue);
3320 assert(u);
3321
3322 if (isempty(rvalue)) {
3323 /* Empty assignment resets the list */
3324 c->syscall_filter = hashmap_free(c->syscall_filter);
3325 c->syscall_allow_list = false;
3326 return 0;
3327 }
3328
3329 if (rvalue[0] == '~') {
3330 invert = true;
3331 rvalue++;
3332 }
3333
3334 if (!c->syscall_filter) {
3335 c->syscall_filter = hashmap_new(NULL);
3336 if (!c->syscall_filter)
3337 return log_oom();
3338
3339 if (invert)
3340 /* Allow everything but the ones listed */
3341 c->syscall_allow_list = false;
3342 else {
3343 /* Allow nothing but the ones listed */
3344 c->syscall_allow_list = true;
3345
3346 /* Accept default syscalls if we are on an allow_list */
3347 r = seccomp_parse_syscall_filter(
3348 "@default", -1, c->syscall_filter,
3349 SECCOMP_PARSE_PERMISSIVE|SECCOMP_PARSE_ALLOW_LIST,
3350 unit,
3351 NULL, 0);
3352 if (r < 0)
3353 return r;
3354 }
3355 }
3356
3357 for (const char *p = rvalue;;) {
3358 _cleanup_free_ char *word = NULL, *name = NULL;
3359 int num;
3360
3361 r = extract_first_word(&p, &word, NULL, 0);
3362 if (r == -ENOMEM)
3363 return log_oom();
3364 if (r < 0) {
3365 log_syntax(unit, LOG_WARNING, filename, line, r,
3366 "Invalid syntax, ignoring: %s", rvalue);
3367 return 0;
3368 }
3369 if (r == 0)
3370 return 0;
3371
3372 r = parse_syscall_and_errno(word, &name, &num);
3373 if (r < 0) {
3374 log_syntax(unit, LOG_WARNING, filename, line, r,
3375 "Failed to parse syscall:errno, ignoring: %s", word);
3376 continue;
3377 }
3378 if (!invert && num >= 0) {
3379 log_syntax(unit, LOG_WARNING, filename, line, 0,
3380 "Allow-listed system calls cannot take error number, ignoring: %s", word);
3381 continue;
3382 }
3383
3384 r = seccomp_parse_syscall_filter(
3385 name, num, c->syscall_filter,
3386 SECCOMP_PARSE_LOG|SECCOMP_PARSE_PERMISSIVE|
3387 (invert ? SECCOMP_PARSE_INVERT : 0)|
3388 (c->syscall_allow_list ? SECCOMP_PARSE_ALLOW_LIST : 0),
3389 unit, filename, line);
3390 if (r < 0)
3391 return r;
3392 }
3393 }
3394
3395 int config_parse_syscall_log(
3396 const char *unit,
3397 const char *filename,
3398 unsigned line,
3399 const char *section,
3400 unsigned section_line,
3401 const char *lvalue,
3402 int ltype,
3403 const char *rvalue,
3404 void *data,
3405 void *userdata) {
3406
3407 ExecContext *c = data;
3408 _unused_ const Unit *u = userdata;
3409 bool invert = false;
3410 const char *p;
3411 int r;
3412
3413 assert(filename);
3414 assert(lvalue);
3415 assert(rvalue);
3416 assert(u);
3417
3418 if (isempty(rvalue)) {
3419 /* Empty assignment resets the list */
3420 c->syscall_log = hashmap_free(c->syscall_log);
3421 c->syscall_log_allow_list = false;
3422 return 0;
3423 }
3424
3425 if (rvalue[0] == '~') {
3426 invert = true;
3427 rvalue++;
3428 }
3429
3430 if (!c->syscall_log) {
3431 c->syscall_log = hashmap_new(NULL);
3432 if (!c->syscall_log)
3433 return log_oom();
3434
3435 if (invert)
3436 /* Log everything but the ones listed */
3437 c->syscall_log_allow_list = false;
3438 else
3439 /* Log nothing but the ones listed */
3440 c->syscall_log_allow_list = true;
3441 }
3442
3443 p = rvalue;
3444 for (;;) {
3445 _cleanup_free_ char *word = NULL;
3446
3447 r = extract_first_word(&p, &word, NULL, 0);
3448 if (r == -ENOMEM)
3449 return log_oom();
3450 if (r < 0) {
3451 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid syntax, ignoring: %s", rvalue);
3452 return 0;
3453 }
3454 if (r == 0)
3455 return 0;
3456
3457 r = seccomp_parse_syscall_filter(
3458 word, -1, c->syscall_log,
3459 SECCOMP_PARSE_LOG|SECCOMP_PARSE_PERMISSIVE|
3460 (invert ? SECCOMP_PARSE_INVERT : 0)|
3461 (c->syscall_log_allow_list ? SECCOMP_PARSE_ALLOW_LIST : 0),
3462 unit, filename, line);
3463 if (r < 0)
3464 return r;
3465 }
3466 }
3467
3468 int config_parse_syscall_archs(
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 Set **archs = data;
3481 int r;
3482
3483 if (isempty(rvalue)) {
3484 *archs = set_free(*archs);
3485 return 0;
3486 }
3487
3488 for (const char *p = rvalue;;) {
3489 _cleanup_free_ char *word = NULL;
3490 uint32_t a;
3491
3492 r = extract_first_word(&p, &word, NULL, EXTRACT_UNQUOTE);
3493 if (r == -ENOMEM)
3494 return log_oom();
3495 if (r < 0) {
3496 log_syntax(unit, LOG_WARNING, filename, line, r,
3497 "Invalid syntax, ignoring: %s", rvalue);
3498 return 0;
3499 }
3500 if (r == 0)
3501 return 0;
3502
3503 r = seccomp_arch_from_string(word, &a);
3504 if (r < 0) {
3505 log_syntax(unit, LOG_WARNING, filename, line, r,
3506 "Failed to parse system call architecture \"%s\", ignoring: %m", word);
3507 continue;
3508 }
3509
3510 r = set_ensure_put(archs, NULL, UINT32_TO_PTR(a + 1));
3511 if (r < 0)
3512 return log_oom();
3513 }
3514 }
3515
3516 int config_parse_syscall_errno(
3517 const char *unit,
3518 const char *filename,
3519 unsigned line,
3520 const char *section,
3521 unsigned section_line,
3522 const char *lvalue,
3523 int ltype,
3524 const char *rvalue,
3525 void *data,
3526 void *userdata) {
3527
3528 ExecContext *c = data;
3529 int e;
3530
3531 assert(filename);
3532 assert(lvalue);
3533 assert(rvalue);
3534
3535 if (isempty(rvalue) || streq(rvalue, "kill")) {
3536 /* Empty assignment resets to KILL */
3537 c->syscall_errno = SECCOMP_ERROR_NUMBER_KILL;
3538 return 0;
3539 }
3540
3541 e = parse_errno(rvalue);
3542 if (e < 0) {
3543 log_syntax(unit, LOG_WARNING, filename, line, e, "Failed to parse error number, ignoring: %s", rvalue);
3544 return 0;
3545 }
3546 if (e == 0) {
3547 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid error number, ignoring: %s", rvalue);
3548 return 0;
3549 }
3550
3551 c->syscall_errno = e;
3552 return 0;
3553 }
3554
3555 int config_parse_address_families(
3556 const char *unit,
3557 const char *filename,
3558 unsigned line,
3559 const char *section,
3560 unsigned section_line,
3561 const char *lvalue,
3562 int ltype,
3563 const char *rvalue,
3564 void *data,
3565 void *userdata) {
3566
3567 ExecContext *c = data;
3568 bool invert = false;
3569 int r;
3570
3571 assert(filename);
3572 assert(lvalue);
3573 assert(rvalue);
3574
3575 if (isempty(rvalue)) {
3576 /* Empty assignment resets the list */
3577 c->address_families = set_free(c->address_families);
3578 c->address_families_allow_list = false;
3579 return 0;
3580 }
3581
3582 if (streq(rvalue, "none")) {
3583 /* Forbid all address families. */
3584 c->address_families = set_free(c->address_families);
3585 c->address_families_allow_list = true;
3586 return 0;
3587 }
3588
3589 if (rvalue[0] == '~') {
3590 invert = true;
3591 rvalue++;
3592 }
3593
3594 if (!c->address_families) {
3595 c->address_families = set_new(NULL);
3596 if (!c->address_families)
3597 return log_oom();
3598
3599 c->address_families_allow_list = !invert;
3600 }
3601
3602 for (const char *p = rvalue;;) {
3603 _cleanup_free_ char *word = NULL;
3604 int af;
3605
3606 r = extract_first_word(&p, &word, NULL, EXTRACT_UNQUOTE);
3607 if (r == -ENOMEM)
3608 return log_oom();
3609 if (r < 0) {
3610 log_syntax(unit, LOG_WARNING, filename, line, r,
3611 "Invalid syntax, ignoring: %s", rvalue);
3612 return 0;
3613 }
3614 if (r == 0)
3615 return 0;
3616
3617 af = af_from_name(word);
3618 if (af < 0) {
3619 log_syntax(unit, LOG_WARNING, filename, line, af,
3620 "Failed to parse address family, ignoring: %s", word);
3621 continue;
3622 }
3623
3624 /* If we previously wanted to forbid an address family and now
3625 * we want to allow it, then just remove it from the list.
3626 */
3627 if (!invert == c->address_families_allow_list) {
3628 r = set_put(c->address_families, INT_TO_PTR(af));
3629 if (r < 0)
3630 return log_oom();
3631 } else
3632 set_remove(c->address_families, INT_TO_PTR(af));
3633 }
3634 }
3635
3636 int config_parse_restrict_namespaces(
3637 const char *unit,
3638 const char *filename,
3639 unsigned line,
3640 const char *section,
3641 unsigned section_line,
3642 const char *lvalue,
3643 int ltype,
3644 const char *rvalue,
3645 void *data,
3646 void *userdata) {
3647
3648 ExecContext *c = data;
3649 unsigned long flags;
3650 bool invert = false;
3651 int r;
3652
3653 if (isempty(rvalue)) {
3654 /* Reset to the default. */
3655 c->restrict_namespaces = NAMESPACE_FLAGS_INITIAL;
3656 return 0;
3657 }
3658
3659 /* Boolean parameter ignores the previous settings */
3660 r = parse_boolean(rvalue);
3661 if (r > 0) {
3662 c->restrict_namespaces = 0;
3663 return 0;
3664 } else if (r == 0) {
3665 c->restrict_namespaces = NAMESPACE_FLAGS_ALL;
3666 return 0;
3667 }
3668
3669 if (rvalue[0] == '~') {
3670 invert = true;
3671 rvalue++;
3672 }
3673
3674 /* Not a boolean argument, in this case it's a list of namespace types. */
3675 r = namespace_flags_from_string(rvalue, &flags);
3676 if (r < 0) {
3677 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse namespace type string, ignoring: %s", rvalue);
3678 return 0;
3679 }
3680
3681 if (c->restrict_namespaces == NAMESPACE_FLAGS_INITIAL)
3682 /* Initial assignment. Just set the value. */
3683 c->restrict_namespaces = invert ? (~flags) & NAMESPACE_FLAGS_ALL : flags;
3684 else
3685 /* Merge the value with the previous one. */
3686 SET_FLAG(c->restrict_namespaces, flags, !invert);
3687
3688 return 0;
3689 }
3690 #endif
3691
3692 int config_parse_restrict_filesystems(
3693 const char *unit,
3694 const char *filename,
3695 unsigned line,
3696 const char *section,
3697 unsigned section_line,
3698 const char *lvalue,
3699 int ltype,
3700 const char *rvalue,
3701 void *data,
3702 void *userdata) {
3703 ExecContext *c = data;
3704 bool invert = false;
3705 int r;
3706
3707 assert(filename);
3708 assert(lvalue);
3709 assert(rvalue);
3710 assert(data);
3711
3712 if (isempty(rvalue)) {
3713 /* Empty assignment resets the list */
3714 c->restrict_filesystems = set_free(c->restrict_filesystems);
3715 c->restrict_filesystems_allow_list = false;
3716 return 0;
3717 }
3718
3719 if (rvalue[0] == '~') {
3720 invert = true;
3721 rvalue++;
3722 }
3723
3724 if (!c->restrict_filesystems) {
3725 if (invert)
3726 /* Allow everything but the ones listed */
3727 c->restrict_filesystems_allow_list = false;
3728 else
3729 /* Allow nothing but the ones listed */
3730 c->restrict_filesystems_allow_list = true;
3731 }
3732
3733 for (const char *p = rvalue;;) {
3734 _cleanup_free_ char *word = NULL;
3735
3736 r = extract_first_word(&p, &word, NULL, EXTRACT_UNQUOTE);
3737 if (r == 0)
3738 break;
3739 if (r == -ENOMEM)
3740 return log_oom();
3741 if (r < 0) {
3742 log_syntax(unit, LOG_WARNING, filename, line, r,
3743 "Trailing garbage in %s, ignoring: %s", lvalue, rvalue);
3744 break;
3745 }
3746
3747 r = lsm_bpf_parse_filesystem(
3748 word,
3749 &c->restrict_filesystems,
3750 FILESYSTEM_PARSE_LOG|
3751 (invert ? FILESYSTEM_PARSE_INVERT : 0)|
3752 (c->restrict_filesystems_allow_list ? FILESYSTEM_PARSE_ALLOW_LIST : 0),
3753 unit, filename, line);
3754
3755 if (r < 0)
3756 return r;
3757 }
3758
3759 return 0;
3760 }
3761
3762 int config_parse_unit_slice(
3763 const char *unit,
3764 const char *filename,
3765 unsigned line,
3766 const char *section,
3767 unsigned section_line,
3768 const char *lvalue,
3769 int ltype,
3770 const char *rvalue,
3771 void *data,
3772 void *userdata) {
3773
3774 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
3775 _cleanup_free_ char *k = NULL;
3776 Unit *u = userdata, *slice;
3777 int r;
3778
3779 assert(filename);
3780 assert(lvalue);
3781 assert(rvalue);
3782 assert(u);
3783
3784 r = unit_name_printf(u, rvalue, &k);
3785 if (r < 0) {
3786 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", rvalue);
3787 return 0;
3788 }
3789
3790 r = manager_load_unit(u->manager, k, NULL, &error, &slice);
3791 if (r < 0) {
3792 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to load slice unit %s, ignoring: %s", k, bus_error_message(&error, r));
3793 return 0;
3794 }
3795
3796 r = unit_set_slice(u, slice);
3797 if (r < 0) {
3798 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to assign slice %s to unit %s, ignoring: %m", slice->id, u->id);
3799 return 0;
3800 }
3801
3802 return 0;
3803 }
3804
3805 int config_parse_cpu_quota(
3806 const char *unit,
3807 const char *filename,
3808 unsigned line,
3809 const char *section,
3810 unsigned section_line,
3811 const char *lvalue,
3812 int ltype,
3813 const char *rvalue,
3814 void *data,
3815 void *userdata) {
3816
3817 CGroupContext *c = data;
3818 int r;
3819
3820 assert(filename);
3821 assert(lvalue);
3822 assert(rvalue);
3823
3824 if (isempty(rvalue)) {
3825 c->cpu_quota_per_sec_usec = USEC_INFINITY;
3826 return 0;
3827 }
3828
3829 r = parse_permyriad_unbounded(rvalue);
3830 if (r <= 0) {
3831 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid CPU quota '%s', ignoring.", rvalue);
3832 return 0;
3833 }
3834
3835 c->cpu_quota_per_sec_usec = ((usec_t) r * USEC_PER_SEC) / 10000U;
3836 return 0;
3837 }
3838
3839 int config_parse_allowed_cpuset(
3840 const char *unit,
3841 const char *filename,
3842 unsigned line,
3843 const char *section,
3844 unsigned section_line,
3845 const char *lvalue,
3846 int ltype,
3847 const char *rvalue,
3848 void *data,
3849 void *userdata) {
3850
3851 CPUSet *c = data;
3852
3853 (void) parse_cpu_set_extend(rvalue, c, true, unit, filename, line, lvalue);
3854 return 0;
3855 }
3856
3857 int config_parse_memory_limit(
3858 const char *unit,
3859 const char *filename,
3860 unsigned line,
3861 const char *section,
3862 unsigned section_line,
3863 const char *lvalue,
3864 int ltype,
3865 const char *rvalue,
3866 void *data,
3867 void *userdata) {
3868
3869 CGroupContext *c = data;
3870 uint64_t bytes = CGROUP_LIMIT_MAX;
3871 int r;
3872
3873 if (isempty(rvalue) && STR_IN_SET(lvalue, "DefaultMemoryLow",
3874 "DefaultMemoryMin",
3875 "MemoryLow",
3876 "MemoryMin"))
3877 bytes = CGROUP_LIMIT_MIN;
3878 else if (!isempty(rvalue) && !streq(rvalue, "infinity")) {
3879
3880 r = parse_permyriad(rvalue);
3881 if (r < 0) {
3882 r = parse_size(rvalue, 1024, &bytes);
3883 if (r < 0) {
3884 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid memory limit '%s', ignoring: %m", rvalue);
3885 return 0;
3886 }
3887 } else
3888 bytes = physical_memory_scale(r, 10000U);
3889
3890 if (bytes >= UINT64_MAX ||
3891 (bytes <= 0 && !STR_IN_SET(lvalue, "MemorySwapMax", "MemoryLow", "MemoryMin", "DefaultMemoryLow", "DefaultMemoryMin"))) {
3892 log_syntax(unit, LOG_WARNING, filename, line, 0, "Memory limit '%s' out of range, ignoring.", rvalue);
3893 return 0;
3894 }
3895 }
3896
3897 if (streq(lvalue, "DefaultMemoryLow")) {
3898 c->default_memory_low = bytes;
3899 c->default_memory_low_set = true;
3900 } else if (streq(lvalue, "DefaultMemoryMin")) {
3901 c->default_memory_min = bytes;
3902 c->default_memory_min_set = true;
3903 } else if (streq(lvalue, "MemoryMin")) {
3904 c->memory_min = bytes;
3905 c->memory_min_set = true;
3906 } else if (streq(lvalue, "MemoryLow")) {
3907 c->memory_low = bytes;
3908 c->memory_low_set = true;
3909 } else if (streq(lvalue, "MemoryHigh"))
3910 c->memory_high = bytes;
3911 else if (streq(lvalue, "MemoryMax"))
3912 c->memory_max = bytes;
3913 else if (streq(lvalue, "MemorySwapMax"))
3914 c->memory_swap_max = bytes;
3915 else if (streq(lvalue, "MemoryLimit"))
3916 c->memory_limit = bytes;
3917 else
3918 return -EINVAL;
3919
3920 return 0;
3921 }
3922
3923 int config_parse_tasks_max(
3924 const char *unit,
3925 const char *filename,
3926 unsigned line,
3927 const char *section,
3928 unsigned section_line,
3929 const char *lvalue,
3930 int ltype,
3931 const char *rvalue,
3932 void *data,
3933 void *userdata) {
3934
3935 const Unit *u = userdata;
3936 TasksMax *tasks_max = data;
3937 uint64_t v;
3938 int r;
3939
3940 if (isempty(rvalue)) {
3941 *tasks_max = u ? u->manager->default_tasks_max : TASKS_MAX_UNSET;
3942 return 0;
3943 }
3944
3945 if (streq(rvalue, "infinity")) {
3946 *tasks_max = TASKS_MAX_UNSET;
3947 return 0;
3948 }
3949
3950 r = parse_permyriad(rvalue);
3951 if (r >= 0)
3952 *tasks_max = (TasksMax) { r, 10000U }; /* r‱ */
3953 else {
3954 r = safe_atou64(rvalue, &v);
3955 if (r < 0) {
3956 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid maximum tasks value '%s', ignoring: %m", rvalue);
3957 return 0;
3958 }
3959
3960 if (v <= 0 || v >= UINT64_MAX) {
3961 log_syntax(unit, LOG_WARNING, filename, line, 0, "Maximum tasks value '%s' out of range, ignoring.", rvalue);
3962 return 0;
3963 }
3964
3965 *tasks_max = (TasksMax) { v };
3966 }
3967
3968 return 0;
3969 }
3970
3971 int config_parse_delegate(
3972 const char *unit,
3973 const char *filename,
3974 unsigned line,
3975 const char *section,
3976 unsigned section_line,
3977 const char *lvalue,
3978 int ltype,
3979 const char *rvalue,
3980 void *data,
3981 void *userdata) {
3982
3983 CGroupContext *c = data;
3984 UnitType t;
3985 int r;
3986
3987 t = unit_name_to_type(unit);
3988 assert(t != _UNIT_TYPE_INVALID);
3989
3990 if (!unit_vtable[t]->can_delegate) {
3991 log_syntax(unit, LOG_WARNING, filename, line, 0, "Delegate= setting not supported for this unit type, ignoring.");
3992 return 0;
3993 }
3994
3995 /* We either accept a boolean value, which may be used to turn on delegation for all controllers, or turn it
3996 * off for all. Or it takes a list of controller names, in which case we add the specified controllers to the
3997 * mask to delegate. */
3998
3999 if (isempty(rvalue)) {
4000 /* An empty string resets controllers and set Delegate=yes. */
4001 c->delegate = true;
4002 c->delegate_controllers = 0;
4003 return 0;
4004 }
4005
4006 r = parse_boolean(rvalue);
4007 if (r < 0) {
4008 CGroupMask mask = 0;
4009
4010 for (const char *p = rvalue;;) {
4011 _cleanup_free_ char *word = NULL;
4012 CGroupController cc;
4013
4014 r = extract_first_word(&p, &word, NULL, EXTRACT_UNQUOTE);
4015 if (r == -ENOMEM)
4016 return log_oom();
4017 if (r < 0) {
4018 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid syntax, ignoring: %s", rvalue);
4019 return 0;
4020 }
4021 if (r == 0)
4022 break;
4023
4024 cc = cgroup_controller_from_string(word);
4025 if (cc < 0) {
4026 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid controller name '%s', ignoring", word);
4027 continue;
4028 }
4029
4030 mask |= CGROUP_CONTROLLER_TO_MASK(cc);
4031 }
4032
4033 c->delegate = true;
4034 c->delegate_controllers |= mask;
4035
4036 } else if (r > 0) {
4037 c->delegate = true;
4038 c->delegate_controllers = _CGROUP_MASK_ALL;
4039 } else {
4040 c->delegate = false;
4041 c->delegate_controllers = 0;
4042 }
4043
4044 return 0;
4045 }
4046
4047 int config_parse_managed_oom_mode(
4048 const char *unit,
4049 const char *filename,
4050 unsigned line,
4051 const char *section,
4052 unsigned section_line,
4053 const char *lvalue,
4054 int ltype,
4055 const char *rvalue,
4056 void *data,
4057 void *userdata) {
4058
4059 ManagedOOMMode *mode = data, m;
4060 UnitType t;
4061
4062 t = unit_name_to_type(unit);
4063 assert(t != _UNIT_TYPE_INVALID);
4064
4065 if (!unit_vtable[t]->can_set_managed_oom)
4066 return log_syntax(unit, LOG_WARNING, filename, line, 0, "%s= is not supported for this unit type, ignoring.", lvalue);
4067
4068 if (isempty(rvalue)) {
4069 *mode = MANAGED_OOM_AUTO;
4070 return 0;
4071 }
4072
4073 m = managed_oom_mode_from_string(rvalue);
4074 if (m < 0) {
4075 log_syntax(unit, LOG_WARNING, filename, line, m, "Invalid syntax, ignoring: %s", rvalue);
4076 return 0;
4077 }
4078
4079 *mode = m;
4080 return 0;
4081 }
4082
4083 int config_parse_managed_oom_mem_pressure_limit(
4084 const char *unit,
4085 const char *filename,
4086 unsigned line,
4087 const char *section,
4088 unsigned section_line,
4089 const char *lvalue,
4090 int ltype,
4091 const char *rvalue,
4092 void *data,
4093 void *userdata) {
4094
4095 uint32_t *limit = data;
4096 UnitType t;
4097 int r;
4098
4099 t = unit_name_to_type(unit);
4100 assert(t != _UNIT_TYPE_INVALID);
4101
4102 if (!unit_vtable[t]->can_set_managed_oom)
4103 return log_syntax(unit, LOG_WARNING, filename, line, 0, "%s= is not supported for this unit type, ignoring.", lvalue);
4104
4105 if (isempty(rvalue)) {
4106 *limit = 0;
4107 return 0;
4108 }
4109
4110 r = parse_permyriad(rvalue);
4111 if (r < 0) {
4112 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse memory pressure limit value, ignoring: %s", rvalue);
4113 return 0;
4114 }
4115
4116 /* Normalize to 2^32-1 == 100% */
4117 *limit = UINT32_SCALE_FROM_PERMYRIAD(r);
4118 return 0;
4119 }
4120
4121 int config_parse_device_allow(
4122 const char *unit,
4123 const char *filename,
4124 unsigned line,
4125 const char *section,
4126 unsigned section_line,
4127 const char *lvalue,
4128 int ltype,
4129 const char *rvalue,
4130 void *data,
4131 void *userdata) {
4132
4133 _cleanup_free_ char *path = NULL, *resolved = NULL;
4134 CGroupContext *c = data;
4135 const char *p = rvalue;
4136 int r;
4137
4138 if (isempty(rvalue)) {
4139 while (c->device_allow)
4140 cgroup_context_free_device_allow(c, c->device_allow);
4141
4142 return 0;
4143 }
4144
4145 r = extract_first_word(&p, &path, NULL, EXTRACT_UNQUOTE);
4146 if (r == -ENOMEM)
4147 return log_oom();
4148 if (r <= 0) {
4149 log_syntax(unit, LOG_WARNING, filename, line, r,
4150 "Failed to extract device path and rights from '%s', ignoring.", rvalue);
4151 return 0;
4152 }
4153
4154 r = unit_path_printf(userdata, path, &resolved);
4155 if (r < 0) {
4156 log_syntax(unit, LOG_WARNING, filename, line, r,
4157 "Failed to resolve unit specifiers in '%s', ignoring: %m", path);
4158 return 0;
4159 }
4160
4161 if (!STARTSWITH_SET(resolved, "block-", "char-")) {
4162
4163 r = path_simplify_and_warn(resolved, 0, unit, filename, line, lvalue);
4164 if (r < 0)
4165 return 0;
4166
4167 if (!valid_device_node_path(resolved)) {
4168 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid device node path '%s', ignoring.", resolved);
4169 return 0;
4170 }
4171 }
4172
4173 if (!isempty(p) && !in_charset(p, "rwm")) {
4174 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid device rights '%s', ignoring.", p);
4175 return 0;
4176 }
4177
4178 return cgroup_add_device_allow(c, resolved, p);
4179 }
4180
4181 int config_parse_io_device_weight(
4182 const char *unit,
4183 const char *filename,
4184 unsigned line,
4185 const char *section,
4186 unsigned section_line,
4187 const char *lvalue,
4188 int ltype,
4189 const char *rvalue,
4190 void *data,
4191 void *userdata) {
4192
4193 _cleanup_free_ char *path = NULL, *resolved = NULL;
4194 CGroupIODeviceWeight *w;
4195 CGroupContext *c = data;
4196 const char *p = rvalue;
4197 uint64_t u;
4198 int r;
4199
4200 assert(filename);
4201 assert(lvalue);
4202 assert(rvalue);
4203
4204 if (isempty(rvalue)) {
4205 while (c->io_device_weights)
4206 cgroup_context_free_io_device_weight(c, c->io_device_weights);
4207
4208 return 0;
4209 }
4210
4211 r = extract_first_word(&p, &path, NULL, EXTRACT_UNQUOTE);
4212 if (r == -ENOMEM)
4213 return log_oom();
4214 if (r <= 0 || isempty(p)) {
4215 log_syntax(unit, LOG_WARNING, filename, line, r,
4216 "Failed to extract device path and weight from '%s', ignoring.", rvalue);
4217 return 0;
4218 }
4219
4220 r = unit_path_printf(userdata, path, &resolved);
4221 if (r < 0) {
4222 log_syntax(unit, LOG_WARNING, filename, line, r,
4223 "Failed to resolve unit specifiers in '%s', ignoring: %m", path);
4224 return 0;
4225 }
4226
4227 r = path_simplify_and_warn(resolved, 0, unit, filename, line, lvalue);
4228 if (r < 0)
4229 return 0;
4230
4231 r = cg_weight_parse(p, &u);
4232 if (r < 0) {
4233 log_syntax(unit, LOG_WARNING, filename, line, r, "IO weight '%s' invalid, ignoring: %m", p);
4234 return 0;
4235 }
4236
4237 assert(u != CGROUP_WEIGHT_INVALID);
4238
4239 w = new0(CGroupIODeviceWeight, 1);
4240 if (!w)
4241 return log_oom();
4242
4243 w->path = TAKE_PTR(resolved);
4244 w->weight = u;
4245
4246 LIST_PREPEND(device_weights, c->io_device_weights, w);
4247 return 0;
4248 }
4249
4250 int config_parse_io_device_latency(
4251 const char *unit,
4252 const char *filename,
4253 unsigned line,
4254 const char *section,
4255 unsigned section_line,
4256 const char *lvalue,
4257 int ltype,
4258 const char *rvalue,
4259 void *data,
4260 void *userdata) {
4261
4262 _cleanup_free_ char *path = NULL, *resolved = NULL;
4263 CGroupIODeviceLatency *l;
4264 CGroupContext *c = data;
4265 const char *p = rvalue;
4266 usec_t usec;
4267 int r;
4268
4269 assert(filename);
4270 assert(lvalue);
4271 assert(rvalue);
4272
4273 if (isempty(rvalue)) {
4274 while (c->io_device_latencies)
4275 cgroup_context_free_io_device_latency(c, c->io_device_latencies);
4276
4277 return 0;
4278 }
4279
4280 r = extract_first_word(&p, &path, NULL, EXTRACT_UNQUOTE);
4281 if (r == -ENOMEM)
4282 return log_oom();
4283 if (r <= 0 || isempty(p)) {
4284 log_syntax(unit, LOG_WARNING, filename, line, r,
4285 "Failed to extract device path and latency from '%s', ignoring.", rvalue);
4286 return 0;
4287 }
4288
4289 r = unit_path_printf(userdata, path, &resolved);
4290 if (r < 0) {
4291 log_syntax(unit, LOG_WARNING, filename, line, r,
4292 "Failed to resolve unit specifiers in '%s', ignoring: %m", path);
4293 return 0;
4294 }
4295
4296 r = path_simplify_and_warn(resolved, 0, unit, filename, line, lvalue);
4297 if (r < 0)
4298 return 0;
4299
4300 r = parse_sec(p, &usec);
4301 if (r < 0) {
4302 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse timer value, ignoring: %s", p);
4303 return 0;
4304 }
4305
4306 l = new0(CGroupIODeviceLatency, 1);
4307 if (!l)
4308 return log_oom();
4309
4310 l->path = TAKE_PTR(resolved);
4311 l->target_usec = usec;
4312
4313 LIST_PREPEND(device_latencies, c->io_device_latencies, l);
4314 return 0;
4315 }
4316
4317 int config_parse_io_limit(
4318 const char *unit,
4319 const char *filename,
4320 unsigned line,
4321 const char *section,
4322 unsigned section_line,
4323 const char *lvalue,
4324 int ltype,
4325 const char *rvalue,
4326 void *data,
4327 void *userdata) {
4328
4329 _cleanup_free_ char *path = NULL, *resolved = NULL;
4330 CGroupIODeviceLimit *l = NULL;
4331 CGroupContext *c = data;
4332 CGroupIOLimitType type;
4333 const char *p = rvalue;
4334 uint64_t num;
4335 int r;
4336
4337 assert(filename);
4338 assert(lvalue);
4339 assert(rvalue);
4340
4341 type = cgroup_io_limit_type_from_string(lvalue);
4342 assert(type >= 0);
4343
4344 if (isempty(rvalue)) {
4345 LIST_FOREACH(device_limits, t, c->io_device_limits)
4346 t->limits[type] = cgroup_io_limit_defaults[type];
4347 return 0;
4348 }
4349
4350 r = extract_first_word(&p, &path, NULL, EXTRACT_UNQUOTE);
4351 if (r == -ENOMEM)
4352 return log_oom();
4353 if (r <= 0 || isempty(p)) {
4354 log_syntax(unit, LOG_WARNING, filename, line, r,
4355 "Failed to extract device node and bandwidth from '%s', ignoring.", rvalue);
4356 return 0;
4357 }
4358
4359 r = unit_path_printf(userdata, path, &resolved);
4360 if (r < 0) {
4361 log_syntax(unit, LOG_WARNING, filename, line, r,
4362 "Failed to resolve unit specifiers in '%s', ignoring: %m", path);
4363 return 0;
4364 }
4365
4366 r = path_simplify_and_warn(resolved, 0, unit, filename, line, lvalue);
4367 if (r < 0)
4368 return 0;
4369
4370 if (streq("infinity", p))
4371 num = CGROUP_LIMIT_MAX;
4372 else {
4373 r = parse_size(p, 1000, &num);
4374 if (r < 0 || num <= 0) {
4375 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid IO limit '%s', ignoring.", p);
4376 return 0;
4377 }
4378 }
4379
4380 LIST_FOREACH(device_limits, t, c->io_device_limits)
4381 if (path_equal(resolved, t->path)) {
4382 l = t;
4383 break;
4384 }
4385
4386 if (!l) {
4387 CGroupIOLimitType ttype;
4388
4389 l = new0(CGroupIODeviceLimit, 1);
4390 if (!l)
4391 return log_oom();
4392
4393 l->path = TAKE_PTR(resolved);
4394 for (ttype = 0; ttype < _CGROUP_IO_LIMIT_TYPE_MAX; ttype++)
4395 l->limits[ttype] = cgroup_io_limit_defaults[ttype];
4396
4397 LIST_PREPEND(device_limits, c->io_device_limits, l);
4398 }
4399
4400 l->limits[type] = num;
4401
4402 return 0;
4403 }
4404
4405 int config_parse_blockio_device_weight(
4406 const char *unit,
4407 const char *filename,
4408 unsigned line,
4409 const char *section,
4410 unsigned section_line,
4411 const char *lvalue,
4412 int ltype,
4413 const char *rvalue,
4414 void *data,
4415 void *userdata) {
4416
4417 _cleanup_free_ char *path = NULL, *resolved = NULL;
4418 CGroupBlockIODeviceWeight *w;
4419 CGroupContext *c = data;
4420 const char *p = rvalue;
4421 uint64_t u;
4422 int r;
4423
4424 assert(filename);
4425 assert(lvalue);
4426 assert(rvalue);
4427
4428 if (isempty(rvalue)) {
4429 while (c->blockio_device_weights)
4430 cgroup_context_free_blockio_device_weight(c, c->blockio_device_weights);
4431
4432 return 0;
4433 }
4434
4435 r = extract_first_word(&p, &path, NULL, EXTRACT_UNQUOTE);
4436 if (r == -ENOMEM)
4437 return log_oom();
4438 if (r <= 0 || isempty(p)) {
4439 log_syntax(unit, LOG_WARNING, filename, line, r,
4440 "Failed to extract device node and weight from '%s', ignoring.", rvalue);
4441 return 0;
4442 }
4443
4444 r = unit_path_printf(userdata, path, &resolved);
4445 if (r < 0) {
4446 log_syntax(unit, LOG_WARNING, filename, line, r,
4447 "Failed to resolve unit specifiers in '%s', ignoring: %m", path);
4448 return 0;
4449 }
4450
4451 r = path_simplify_and_warn(resolved, 0, unit, filename, line, lvalue);
4452 if (r < 0)
4453 return 0;
4454
4455 r = cg_blkio_weight_parse(p, &u);
4456 if (r < 0) {
4457 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid block IO weight '%s', ignoring: %m", p);
4458 return 0;
4459 }
4460
4461 assert(u != CGROUP_BLKIO_WEIGHT_INVALID);
4462
4463 w = new0(CGroupBlockIODeviceWeight, 1);
4464 if (!w)
4465 return log_oom();
4466
4467 w->path = TAKE_PTR(resolved);
4468 w->weight = u;
4469
4470 LIST_PREPEND(device_weights, c->blockio_device_weights, w);
4471 return 0;
4472 }
4473
4474 int config_parse_blockio_bandwidth(
4475 const char *unit,
4476 const char *filename,
4477 unsigned line,
4478 const char *section,
4479 unsigned section_line,
4480 const char *lvalue,
4481 int ltype,
4482 const char *rvalue,
4483 void *data,
4484 void *userdata) {
4485
4486 _cleanup_free_ char *path = NULL, *resolved = NULL;
4487 CGroupBlockIODeviceBandwidth *b = NULL;
4488 CGroupContext *c = data;
4489 const char *p = rvalue;
4490 uint64_t bytes;
4491 bool read;
4492 int r;
4493
4494 assert(filename);
4495 assert(lvalue);
4496 assert(rvalue);
4497
4498 read = streq("BlockIOReadBandwidth", lvalue);
4499
4500 if (isempty(rvalue)) {
4501 LIST_FOREACH(device_bandwidths, t, c->blockio_device_bandwidths) {
4502 t->rbps = CGROUP_LIMIT_MAX;
4503 t->wbps = CGROUP_LIMIT_MAX;
4504 }
4505 return 0;
4506 }
4507
4508 r = extract_first_word(&p, &path, NULL, EXTRACT_UNQUOTE);
4509 if (r == -ENOMEM)
4510 return log_oom();
4511 if (r <= 0 || isempty(p)) {
4512 log_syntax(unit, LOG_WARNING, filename, line, r,
4513 "Failed to extract device node and bandwidth from '%s', ignoring.", rvalue);
4514 return 0;
4515 }
4516
4517 r = unit_path_printf(userdata, path, &resolved);
4518 if (r < 0) {
4519 log_syntax(unit, LOG_WARNING, filename, line, r,
4520 "Failed to resolve unit specifiers in '%s', ignoring: %m", path);
4521 return 0;
4522 }
4523
4524 r = path_simplify_and_warn(resolved, 0, unit, filename, line, lvalue);
4525 if (r < 0)
4526 return 0;
4527
4528 r = parse_size(p, 1000, &bytes);
4529 if (r < 0 || bytes <= 0) {
4530 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid Block IO Bandwidth '%s', ignoring.", p);
4531 return 0;
4532 }
4533
4534 LIST_FOREACH(device_bandwidths, t, c->blockio_device_bandwidths)
4535 if (path_equal(resolved, t->path)) {
4536 b = t;
4537 break;
4538 }
4539
4540 if (!b) {
4541 b = new0(CGroupBlockIODeviceBandwidth, 1);
4542 if (!b)
4543 return log_oom();
4544
4545 b->path = TAKE_PTR(resolved);
4546 b->rbps = CGROUP_LIMIT_MAX;
4547 b->wbps = CGROUP_LIMIT_MAX;
4548
4549 LIST_PREPEND(device_bandwidths, c->blockio_device_bandwidths, b);
4550 }
4551
4552 if (read)
4553 b->rbps = bytes;
4554 else
4555 b->wbps = bytes;
4556
4557 return 0;
4558 }
4559
4560 int config_parse_job_mode_isolate(
4561 const char *unit,
4562 const char *filename,
4563 unsigned line,
4564 const char *section,
4565 unsigned section_line,
4566 const char *lvalue,
4567 int ltype,
4568 const char *rvalue,
4569 void *data,
4570 void *userdata) {
4571
4572 JobMode *m = data;
4573 int r;
4574
4575 assert(filename);
4576 assert(lvalue);
4577 assert(rvalue);
4578
4579 r = parse_boolean(rvalue);
4580 if (r < 0) {
4581 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse boolean, ignoring: %s", rvalue);
4582 return 0;
4583 }
4584
4585 log_notice("%s is deprecated. Please use OnFailureJobMode= instead", lvalue);
4586
4587 *m = r ? JOB_ISOLATE : JOB_REPLACE;
4588 return 0;
4589 }
4590
4591 int config_parse_exec_directories(
4592 const char *unit,
4593 const char *filename,
4594 unsigned line,
4595 const char *section,
4596 unsigned section_line,
4597 const char *lvalue,
4598 int ltype,
4599 const char *rvalue,
4600 void *data,
4601 void *userdata) {
4602
4603 ExecDirectory *ed = data;
4604 const Unit *u = userdata;
4605 int r;
4606
4607 assert(filename);
4608 assert(lvalue);
4609 assert(rvalue);
4610 assert(data);
4611
4612 if (isempty(rvalue)) {
4613 /* Empty assignment resets the list */
4614 exec_directory_done(ed);
4615 return 0;
4616 }
4617
4618 for (const char *p = rvalue;;) {
4619 _cleanup_free_ char *tuple = NULL;
4620
4621 r = extract_first_word(&p, &tuple, NULL, EXTRACT_UNQUOTE|EXTRACT_RETAIN_ESCAPE);
4622 if (r == -ENOMEM)
4623 return log_oom();
4624 if (r < 0) {
4625 log_syntax(unit, LOG_WARNING, filename, line, r,
4626 "Invalid syntax %s=%s, ignoring: %m", lvalue, rvalue);
4627 return 0;
4628 }
4629 if (r == 0)
4630 return 0;
4631
4632 _cleanup_free_ char *src = NULL, *dest = NULL;
4633 const char *q = tuple;
4634 r = extract_many_words(&q, ":", EXTRACT_CUNESCAPE|EXTRACT_UNESCAPE_SEPARATORS, &src, &dest, NULL);
4635 if (r == -ENOMEM)
4636 return log_oom();
4637 if (r <= 0) {
4638 log_syntax(unit, LOG_WARNING, filename, line, r ?: SYNTHETIC_ERRNO(EINVAL),
4639 "Invalid syntax in %s=, ignoring: %s", lvalue, tuple);
4640 return 0;
4641 }
4642
4643 _cleanup_free_ char *sresolved = NULL;
4644 r = unit_path_printf(u, src, &sresolved);
4645 if (r < 0) {
4646 log_syntax(unit, LOG_WARNING, filename, line, r,
4647 "Failed to resolve unit specifiers in \"%s\", ignoring: %m", src);
4648 continue;
4649 }
4650
4651 r = path_simplify_and_warn(sresolved, PATH_CHECK_RELATIVE, unit, filename, line, lvalue);
4652 if (r < 0)
4653 continue;
4654
4655 if (path_startswith(sresolved, "private")) {
4656 log_syntax(unit, LOG_WARNING, filename, line, 0,
4657 "%s= path can't be 'private', ignoring assignment: %s", lvalue, tuple);
4658 continue;
4659 }
4660
4661 /* For State and Runtime directories we support an optional destination parameter, which
4662 * will be used to create a symlink to the source. */
4663 _cleanup_strv_free_ char **symlinks = NULL;
4664 if (!isempty(dest)) {
4665 _cleanup_free_ char *dresolved = NULL;
4666
4667 if (streq(lvalue, "ConfigurationDirectory")) {
4668 log_syntax(unit, LOG_WARNING, filename, line, 0,
4669 "Destination parameter is not supported for ConfigurationDirectory, ignoring: %s", tuple);
4670 continue;
4671 }
4672
4673 r = unit_path_printf(u, dest, &dresolved);
4674 if (r < 0) {
4675 log_syntax(unit, LOG_WARNING, filename, line, r,
4676 "Failed to resolve unit specifiers in \"%s\", ignoring: %m", dest);
4677 continue;
4678 }
4679
4680 r = path_simplify_and_warn(dresolved, PATH_CHECK_RELATIVE, unit, filename, line, lvalue);
4681 if (r < 0)
4682 continue;
4683
4684 r = strv_consume(&symlinks, TAKE_PTR(dresolved));
4685 if (r < 0)
4686 return log_oom();
4687 }
4688
4689 r = exec_directory_add(&ed->items, &ed->n_items, sresolved, symlinks);
4690 if (r < 0)
4691 return log_oom();
4692 }
4693 }
4694
4695 int config_parse_set_credential(
4696 const char *unit,
4697 const char *filename,
4698 unsigned line,
4699 const char *section,
4700 unsigned section_line,
4701 const char *lvalue,
4702 int ltype,
4703 const char *rvalue,
4704 void *data,
4705 void *userdata) {
4706
4707 _cleanup_free_ char *word = NULL, *k = NULL;
4708 _cleanup_free_ void *d = NULL;
4709 ExecContext *context = data;
4710 ExecSetCredential *old;
4711 Unit *u = userdata;
4712 bool encrypted = ltype;
4713 const char *p = rvalue;
4714 size_t size;
4715 int r;
4716
4717 assert(filename);
4718 assert(lvalue);
4719 assert(rvalue);
4720 assert(context);
4721
4722 if (isempty(rvalue)) {
4723 /* Empty assignment resets the list */
4724 context->set_credentials = hashmap_free(context->set_credentials);
4725 return 0;
4726 }
4727
4728 r = extract_first_word(&p, &word, ":", EXTRACT_DONT_COALESCE_SEPARATORS);
4729 if (r == -ENOMEM)
4730 return log_oom();
4731 if (r <= 0 || !p) {
4732 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid syntax, ignoring: %s", rvalue);
4733 return 0;
4734 }
4735
4736 r = unit_cred_printf(u, word, &k);
4737 if (r < 0) {
4738 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in \"%s\", ignoring: %m", word);
4739 return 0;
4740 }
4741 if (!credential_name_valid(k)) {
4742 log_syntax(unit, LOG_WARNING, filename, line, 0, "Credential name \"%s\" not valid, ignoring.", k);
4743 return 0;
4744 }
4745
4746 if (encrypted) {
4747 r = unbase64mem_full(p, SIZE_MAX, true, &d, &size);
4748 if (r < 0) {
4749 log_syntax(unit, LOG_WARNING, filename, line, r, "Encrypted credential data not valid Base64 data, ignoring.");
4750 return 0;
4751 }
4752 } else {
4753 char *unescaped;
4754 ssize_t l;
4755
4756 /* We support escape codes here, so that users can insert trailing \n if they like */
4757 l = cunescape(p, UNESCAPE_ACCEPT_NUL, &unescaped);
4758 if (l < 0) {
4759 log_syntax(unit, LOG_WARNING, filename, line, l, "Can't unescape \"%s\", ignoring: %m", p);
4760 return 0;
4761 }
4762
4763 d = unescaped;
4764 size = l;
4765 }
4766
4767 old = hashmap_get(context->set_credentials, k);
4768 if (old) {
4769 free_and_replace(old->data, d);
4770 old->size = size;
4771 old->encrypted = encrypted;
4772 } else {
4773 _cleanup_(exec_set_credential_freep) ExecSetCredential *sc = NULL;
4774
4775 sc = new(ExecSetCredential, 1);
4776 if (!sc)
4777 return log_oom();
4778
4779 *sc = (ExecSetCredential) {
4780 .id = TAKE_PTR(k),
4781 .data = TAKE_PTR(d),
4782 .size = size,
4783 .encrypted = encrypted,
4784 };
4785
4786 r = hashmap_ensure_put(&context->set_credentials, &exec_set_credential_hash_ops, sc->id, sc);
4787 if (r == -ENOMEM)
4788 return log_oom();
4789 if (r < 0) {
4790 log_syntax(unit, LOG_WARNING, filename, line, r,
4791 "Duplicated credential value '%s', ignoring assignment: %s", sc->id, rvalue);
4792 return 0;
4793 }
4794
4795 TAKE_PTR(sc);
4796 }
4797
4798 return 0;
4799 }
4800
4801 int config_parse_load_credential(
4802 const char *unit,
4803 const char *filename,
4804 unsigned line,
4805 const char *section,
4806 unsigned section_line,
4807 const char *lvalue,
4808 int ltype,
4809 const char *rvalue,
4810 void *data,
4811 void *userdata) {
4812
4813 _cleanup_free_ char *word = NULL, *k = NULL, *q = NULL;
4814 ExecContext *context = data;
4815 ExecLoadCredential *old;
4816 bool encrypted = ltype;
4817 Unit *u = userdata;
4818 const char *p;
4819 int r;
4820
4821 assert(filename);
4822 assert(lvalue);
4823 assert(rvalue);
4824 assert(context);
4825
4826 if (isempty(rvalue)) {
4827 /* Empty assignment resets the list */
4828 context->load_credentials = hashmap_free(context->load_credentials);
4829 return 0;
4830 }
4831
4832 p = rvalue;
4833 r = extract_first_word(&p, &word, ":", EXTRACT_DONT_COALESCE_SEPARATORS);
4834 if (r == -ENOMEM)
4835 return log_oom();
4836 if (r <= 0) {
4837 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid syntax, ignoring: %s", rvalue);
4838 return 0;
4839 }
4840
4841 r = unit_cred_printf(u, word, &k);
4842 if (r < 0) {
4843 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in \"%s\", ignoring: %m", word);
4844 return 0;
4845 }
4846 if (!credential_name_valid(k)) {
4847 log_syntax(unit, LOG_WARNING, filename, line, 0, "Credential name \"%s\" not valid, ignoring.", k);
4848 return 0;
4849 }
4850
4851 if (isempty(p)) {
4852 /* If only one field is specified take it as shortcut for inheriting a credential named
4853 * the same way from our parent */
4854 q = strdup(k);
4855 if (!q)
4856 return log_oom();
4857 } else {
4858 r = unit_path_printf(u, p, &q);
4859 if (r < 0) {
4860 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in \"%s\", ignoring: %m", p);
4861 return 0;
4862 }
4863 if (path_is_absolute(q) ? !path_is_normalized(q) : !credential_name_valid(q)) {
4864 log_syntax(unit, LOG_WARNING, filename, line, 0, "Credential source \"%s\" not valid, ignoring.", q);
4865 return 0;
4866 }
4867 }
4868
4869 old = hashmap_get(context->load_credentials, k);
4870 if (old) {
4871 free_and_replace(old->path, q);
4872 old->encrypted = encrypted;
4873 } else {
4874 _cleanup_(exec_load_credential_freep) ExecLoadCredential *lc = NULL;
4875
4876 lc = new(ExecLoadCredential, 1);
4877 if (!lc)
4878 return log_oom();
4879
4880 *lc = (ExecLoadCredential) {
4881 .id = TAKE_PTR(k),
4882 .path = TAKE_PTR(q),
4883 .encrypted = encrypted,
4884 };
4885
4886 r = hashmap_ensure_put(&context->load_credentials, &exec_load_credential_hash_ops, lc->id, lc);
4887 if (r == -ENOMEM)
4888 return log_oom();
4889 if (r < 0) {
4890 log_syntax(unit, LOG_WARNING, filename, line, r,
4891 "Duplicated credential value '%s', ignoring assignment: %s", lc->id, rvalue);
4892 return 0;
4893 }
4894
4895 TAKE_PTR(lc);
4896 }
4897
4898 return 0;
4899 }
4900
4901 int config_parse_set_status(
4902 const char *unit,
4903 const char *filename,
4904 unsigned line,
4905 const char *section,
4906 unsigned section_line,
4907 const char *lvalue,
4908 int ltype,
4909 const char *rvalue,
4910 void *data,
4911 void *userdata) {
4912
4913 ExitStatusSet *status_set = data;
4914 int r;
4915
4916 assert(filename);
4917 assert(lvalue);
4918 assert(rvalue);
4919 assert(status_set);
4920
4921 /* Empty assignment resets the list */
4922 if (isempty(rvalue)) {
4923 exit_status_set_free(status_set);
4924 return 0;
4925 }
4926
4927 for (const char *p = rvalue;;) {
4928 _cleanup_free_ char *word = NULL;
4929 Bitmap *bitmap;
4930
4931 r = extract_first_word(&p, &word, NULL, 0);
4932 if (r == -ENOMEM)
4933 return log_oom();
4934 if (r < 0) {
4935 log_syntax(unit, LOG_WARNING, filename, line, r,
4936 "Failed to parse %s=%s, ignoring: %m", lvalue, rvalue);
4937 return 0;
4938 }
4939 if (r == 0)
4940 return 0;
4941
4942 /* We need to call exit_status_from_string() first, because we want
4943 * to parse numbers as exit statuses, not signals. */
4944
4945 r = exit_status_from_string(word);
4946 if (r >= 0) {
4947 assert(r >= 0 && r < 256);
4948 bitmap = &status_set->status;
4949 } else {
4950 r = signal_from_string(word);
4951 if (r < 0) {
4952 log_syntax(unit, LOG_WARNING, filename, line, r,
4953 "Failed to parse value, ignoring: %s", word);
4954 continue;
4955 }
4956 bitmap = &status_set->signal;
4957 }
4958
4959 r = bitmap_set(bitmap, r);
4960 if (r < 0)
4961 log_syntax(unit, LOG_WARNING, filename, line, r,
4962 "Failed to set signal or status %s, ignoring: %m", word);
4963 }
4964 }
4965
4966 int config_parse_namespace_path_strv(
4967 const char *unit,
4968 const char *filename,
4969 unsigned line,
4970 const char *section,
4971 unsigned section_line,
4972 const char *lvalue,
4973 int ltype,
4974 const char *rvalue,
4975 void *data,
4976 void *userdata) {
4977
4978 const Unit *u = userdata;
4979 char*** sv = data;
4980 int r;
4981
4982 assert(filename);
4983 assert(lvalue);
4984 assert(rvalue);
4985 assert(data);
4986
4987 if (isempty(rvalue)) {
4988 /* Empty assignment resets the list */
4989 *sv = strv_free(*sv);
4990 return 0;
4991 }
4992
4993 for (const char *p = rvalue;;) {
4994 _cleanup_free_ char *word = NULL, *resolved = NULL, *joined = NULL;
4995 const char *w;
4996 bool ignore_enoent = false, shall_prefix = false;
4997
4998 r = extract_first_word(&p, &word, NULL, EXTRACT_UNQUOTE);
4999 if (r == -ENOMEM)
5000 return log_oom();
5001 if (r < 0) {
5002 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to extract first word, ignoring: %s", rvalue);
5003 return 0;
5004 }
5005 if (r == 0)
5006 break;
5007
5008 w = word;
5009 if (startswith(w, "-")) {
5010 ignore_enoent = true;
5011 w++;
5012 }
5013 if (startswith(w, "+")) {
5014 shall_prefix = true;
5015 w++;
5016 }
5017
5018 r = unit_path_printf(u, w, &resolved);
5019 if (r < 0) {
5020 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s: %m", w);
5021 continue;
5022 }
5023
5024 r = path_simplify_and_warn(resolved, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
5025 if (r < 0)
5026 continue;
5027
5028 joined = strjoin(ignore_enoent ? "-" : "",
5029 shall_prefix ? "+" : "",
5030 resolved);
5031
5032 r = strv_push(sv, joined);
5033 if (r < 0)
5034 return log_oom();
5035
5036 joined = NULL;
5037 }
5038
5039 return 0;
5040 }
5041
5042 int config_parse_temporary_filesystems(
5043 const char *unit,
5044 const char *filename,
5045 unsigned line,
5046 const char *section,
5047 unsigned section_line,
5048 const char *lvalue,
5049 int ltype,
5050 const char *rvalue,
5051 void *data,
5052 void *userdata) {
5053
5054 const Unit *u = userdata;
5055 ExecContext *c = data;
5056 int r;
5057
5058 assert(filename);
5059 assert(lvalue);
5060 assert(rvalue);
5061 assert(data);
5062
5063 if (isempty(rvalue)) {
5064 /* Empty assignment resets the list */
5065 temporary_filesystem_free_many(c->temporary_filesystems, c->n_temporary_filesystems);
5066 c->temporary_filesystems = NULL;
5067 c->n_temporary_filesystems = 0;
5068 return 0;
5069 }
5070
5071 for (const char *p = rvalue;;) {
5072 _cleanup_free_ char *word = NULL, *path = NULL, *resolved = NULL;
5073 const char *w;
5074
5075 r = extract_first_word(&p, &word, NULL, EXTRACT_UNQUOTE);
5076 if (r == -ENOMEM)
5077 return log_oom();
5078 if (r < 0) {
5079 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to extract first word, ignoring: %s", rvalue);
5080 return 0;
5081 }
5082 if (r == 0)
5083 return 0;
5084
5085 w = word;
5086 r = extract_first_word(&w, &path, ":", EXTRACT_DONT_COALESCE_SEPARATORS);
5087 if (r == -ENOMEM)
5088 return log_oom();
5089 if (r < 0) {
5090 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to extract first word, ignoring: %s", word);
5091 continue;
5092 }
5093 if (r == 0) {
5094 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid syntax, ignoring: %s", word);
5095 continue;
5096 }
5097
5098 r = unit_path_printf(u, path, &resolved);
5099 if (r < 0) {
5100 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", path);
5101 continue;
5102 }
5103
5104 r = path_simplify_and_warn(resolved, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
5105 if (r < 0)
5106 continue;
5107
5108 r = temporary_filesystem_add(&c->temporary_filesystems, &c->n_temporary_filesystems, resolved, w);
5109 if (r < 0)
5110 return log_oom();
5111 }
5112 }
5113
5114 int config_parse_bind_paths(
5115 const char *unit,
5116 const char *filename,
5117 unsigned line,
5118 const char *section,
5119 unsigned section_line,
5120 const char *lvalue,
5121 int ltype,
5122 const char *rvalue,
5123 void *data,
5124 void *userdata) {
5125
5126 ExecContext *c = data;
5127 const Unit *u = userdata;
5128 int r;
5129
5130 assert(filename);
5131 assert(lvalue);
5132 assert(rvalue);
5133 assert(data);
5134
5135 if (isempty(rvalue)) {
5136 /* Empty assignment resets the list */
5137 bind_mount_free_many(c->bind_mounts, c->n_bind_mounts);
5138 c->bind_mounts = NULL;
5139 c->n_bind_mounts = 0;
5140 return 0;
5141 }
5142
5143 for (const char *p = rvalue;;) {
5144 _cleanup_free_ char *source = NULL, *destination = NULL;
5145 _cleanup_free_ char *sresolved = NULL, *dresolved = NULL;
5146 char *s = NULL, *d = NULL;
5147 bool rbind = true, ignore_enoent = false;
5148
5149 r = extract_first_word(&p, &source, ":" WHITESPACE, EXTRACT_UNQUOTE|EXTRACT_DONT_COALESCE_SEPARATORS);
5150 if (r == -ENOMEM)
5151 return log_oom();
5152 if (r < 0) {
5153 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse %s, ignoring: %s", lvalue, rvalue);
5154 return 0;
5155 }
5156 if (r == 0)
5157 break;
5158
5159 r = unit_full_printf_full(u, source, PATH_MAX, &sresolved);
5160 if (r < 0) {
5161 log_syntax(unit, LOG_WARNING, filename, line, r,
5162 "Failed to resolve unit specifiers in \"%s\", ignoring: %m", source);
5163 continue;
5164 }
5165
5166 s = sresolved;
5167 if (s[0] == '-') {
5168 ignore_enoent = true;
5169 s++;
5170 }
5171
5172 r = path_simplify_and_warn(s, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
5173 if (r < 0)
5174 continue;
5175
5176 /* Optionally, the destination is specified. */
5177 if (p && p[-1] == ':') {
5178 r = extract_first_word(&p, &destination, ":" WHITESPACE, EXTRACT_UNQUOTE|EXTRACT_DONT_COALESCE_SEPARATORS);
5179 if (r == -ENOMEM)
5180 return log_oom();
5181 if (r < 0) {
5182 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse %s, ignoring: %s", lvalue, rvalue);
5183 return 0;
5184 }
5185 if (r == 0) {
5186 log_syntax(unit, LOG_WARNING, filename, line, 0, "Missing argument after ':', ignoring: %s", s);
5187 continue;
5188 }
5189
5190 r = unit_path_printf(u, destination, &dresolved);
5191 if (r < 0) {
5192 log_syntax(unit, LOG_WARNING, filename, line, r,
5193 "Failed to resolve specifiers in \"%s\", ignoring: %m", destination);
5194 continue;
5195 }
5196
5197 r = path_simplify_and_warn(dresolved, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
5198 if (r < 0)
5199 continue;
5200
5201 d = dresolved;
5202
5203 /* Optionally, there's also a short option string specified */
5204 if (p && p[-1] == ':') {
5205 _cleanup_free_ char *options = NULL;
5206
5207 r = extract_first_word(&p, &options, NULL, EXTRACT_UNQUOTE);
5208 if (r == -ENOMEM)
5209 return log_oom();
5210 if (r < 0) {
5211 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse %s: %s", lvalue, rvalue);
5212 return 0;
5213 }
5214
5215 if (isempty(options) || streq(options, "rbind"))
5216 rbind = true;
5217 else if (streq(options, "norbind"))
5218 rbind = false;
5219 else {
5220 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid option string, ignoring setting: %s", options);
5221 continue;
5222 }
5223 }
5224 } else
5225 d = s;
5226
5227 r = bind_mount_add(&c->bind_mounts, &c->n_bind_mounts,
5228 &(BindMount) {
5229 .source = s,
5230 .destination = d,
5231 .read_only = !!strstr(lvalue, "ReadOnly"),
5232 .recursive = rbind,
5233 .ignore_enoent = ignore_enoent,
5234 });
5235 if (r < 0)
5236 return log_oom();
5237 }
5238
5239 return 0;
5240 }
5241
5242 int config_parse_mount_images(
5243 const char *unit,
5244 const char *filename,
5245 unsigned line,
5246 const char *section,
5247 unsigned section_line,
5248 const char *lvalue,
5249 int ltype,
5250 const char *rvalue,
5251 void *data,
5252 void *userdata) {
5253
5254 ExecContext *c = data;
5255 const Unit *u = userdata;
5256 int r;
5257
5258 assert(filename);
5259 assert(lvalue);
5260 assert(rvalue);
5261 assert(data);
5262
5263 if (isempty(rvalue)) {
5264 /* Empty assignment resets the list */
5265 c->mount_images = mount_image_free_many(c->mount_images, &c->n_mount_images);
5266 return 0;
5267 }
5268
5269 for (const char *p = rvalue;;) {
5270 _cleanup_(mount_options_free_allp) MountOptions *options = NULL;
5271 _cleanup_free_ char *first = NULL, *second = NULL, *tuple = NULL;
5272 _cleanup_free_ char *sresolved = NULL, *dresolved = NULL;
5273 const char *q = NULL;
5274 char *s = NULL;
5275 bool permissive = false;
5276
5277 r = extract_first_word(&p, &tuple, NULL, EXTRACT_UNQUOTE|EXTRACT_RETAIN_ESCAPE);
5278 if (r == -ENOMEM)
5279 return log_oom();
5280 if (r < 0) {
5281 log_syntax(unit, LOG_WARNING, filename, line, r,
5282 "Invalid syntax %s=%s, ignoring: %m", lvalue, rvalue);
5283 return 0;
5284 }
5285 if (r == 0)
5286 return 0;
5287
5288 q = tuple;
5289 r = extract_many_words(&q, ":", EXTRACT_CUNESCAPE|EXTRACT_UNESCAPE_SEPARATORS, &first, &second, NULL);
5290 if (r == -ENOMEM)
5291 return log_oom();
5292 if (r < 0) {
5293 log_syntax(unit, LOG_WARNING, filename, line, r,
5294 "Invalid syntax in %s=, ignoring: %s", lvalue, tuple);
5295 return 0;
5296 }
5297 if (r == 0)
5298 continue;
5299
5300 s = first;
5301 if (s[0] == '-') {
5302 permissive = true;
5303 s++;
5304 }
5305
5306 r = unit_path_printf(u, s, &sresolved);
5307 if (r < 0) {
5308 log_syntax(unit, LOG_WARNING, filename, line, r,
5309 "Failed to resolve unit specifiers in \"%s\", ignoring: %m", s);
5310 continue;
5311 }
5312
5313 r = path_simplify_and_warn(sresolved, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
5314 if (r < 0)
5315 continue;
5316
5317 if (isempty(second)) {
5318 log_syntax(unit, LOG_WARNING, filename, line, 0, "Missing destination in %s, ignoring: %s", lvalue, rvalue);
5319 continue;
5320 }
5321
5322 r = unit_path_printf(u, second, &dresolved);
5323 if (r < 0) {
5324 log_syntax(unit, LOG_WARNING, filename, line, r,
5325 "Failed to resolve specifiers in \"%s\", ignoring: %m", second);
5326 continue;
5327 }
5328
5329 r = path_simplify_and_warn(dresolved, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
5330 if (r < 0)
5331 continue;
5332
5333 for (;;) {
5334 _cleanup_free_ char *partition = NULL, *mount_options = NULL, *mount_options_resolved = NULL;
5335 MountOptions *o = NULL;
5336 PartitionDesignator partition_designator;
5337
5338 r = extract_many_words(&q, ":", EXTRACT_CUNESCAPE|EXTRACT_UNESCAPE_SEPARATORS, &partition, &mount_options, NULL);
5339 if (r == -ENOMEM)
5340 return log_oom();
5341 if (r < 0) {
5342 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid syntax, ignoring: %s", q);
5343 return 0;
5344 }
5345 if (r == 0)
5346 break;
5347 /* Single set of options, applying to the root partition/single filesystem */
5348 if (r == 1) {
5349 r = unit_full_printf(u, partition, &mount_options_resolved);
5350 if (r < 0) {
5351 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", first);
5352 continue;
5353 }
5354
5355 o = new(MountOptions, 1);
5356 if (!o)
5357 return log_oom();
5358 *o = (MountOptions) {
5359 .partition_designator = PARTITION_ROOT,
5360 .options = TAKE_PTR(mount_options_resolved),
5361 };
5362 LIST_APPEND(mount_options, options, o);
5363
5364 break;
5365 }
5366
5367 partition_designator = partition_designator_from_string(partition);
5368 if (partition_designator < 0) {
5369 log_syntax(unit, LOG_WARNING, filename, line, partition_designator,
5370 "Invalid partition name %s, ignoring", partition);
5371 continue;
5372 }
5373 r = unit_full_printf(u, mount_options, &mount_options_resolved);
5374 if (r < 0) {
5375 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", mount_options);
5376 continue;
5377 }
5378
5379 o = new(MountOptions, 1);
5380 if (!o)
5381 return log_oom();
5382 *o = (MountOptions) {
5383 .partition_designator = partition_designator,
5384 .options = TAKE_PTR(mount_options_resolved),
5385 };
5386 LIST_APPEND(mount_options, options, o);
5387 }
5388
5389 r = mount_image_add(&c->mount_images, &c->n_mount_images,
5390 &(MountImage) {
5391 .source = sresolved,
5392 .destination = dresolved,
5393 .mount_options = options,
5394 .ignore_enoent = permissive,
5395 .type = MOUNT_IMAGE_DISCRETE,
5396 });
5397 if (r < 0)
5398 return log_oom();
5399 }
5400 }
5401
5402 int config_parse_extension_images(
5403 const char *unit,
5404 const char *filename,
5405 unsigned line,
5406 const char *section,
5407 unsigned section_line,
5408 const char *lvalue,
5409 int ltype,
5410 const char *rvalue,
5411 void *data,
5412 void *userdata) {
5413
5414 ExecContext *c = data;
5415 const Unit *u = userdata;
5416 int r;
5417
5418 assert(filename);
5419 assert(lvalue);
5420 assert(rvalue);
5421 assert(data);
5422
5423 if (isempty(rvalue)) {
5424 /* Empty assignment resets the list */
5425 c->extension_images = mount_image_free_many(c->extension_images, &c->n_extension_images);
5426 return 0;
5427 }
5428
5429 for (const char *p = rvalue;;) {
5430 _cleanup_free_ char *source = NULL, *tuple = NULL, *sresolved = NULL;
5431 _cleanup_(mount_options_free_allp) MountOptions *options = NULL;
5432 bool permissive = false;
5433 const char *q = NULL;
5434 char *s = NULL;
5435
5436 r = extract_first_word(&p, &tuple, NULL, EXTRACT_UNQUOTE|EXTRACT_RETAIN_ESCAPE);
5437 if (r == -ENOMEM)
5438 return log_oom();
5439 if (r < 0) {
5440 log_syntax(unit, LOG_WARNING, filename, line, r,
5441 "Invalid syntax %s=%s, ignoring: %m", lvalue, rvalue);
5442 return 0;
5443 }
5444 if (r == 0)
5445 return 0;
5446
5447 q = tuple;
5448 r = extract_first_word(&q, &source, ":", EXTRACT_CUNESCAPE|EXTRACT_UNESCAPE_SEPARATORS);
5449 if (r == -ENOMEM)
5450 return log_oom();
5451 if (r < 0) {
5452 log_syntax(unit, LOG_WARNING, filename, line, r,
5453 "Invalid syntax in %s=, ignoring: %s", lvalue, tuple);
5454 return 0;
5455 }
5456 if (r == 0)
5457 continue;
5458
5459 s = source;
5460 if (s[0] == '-') {
5461 permissive = true;
5462 s++;
5463 }
5464
5465 r = unit_path_printf(u, s, &sresolved);
5466 if (r < 0) {
5467 log_syntax(unit, LOG_WARNING, filename, line, r,
5468 "Failed to resolve unit specifiers in \"%s\", ignoring: %m", s);
5469 continue;
5470 }
5471
5472 r = path_simplify_and_warn(sresolved, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
5473 if (r < 0)
5474 continue;
5475
5476 for (;;) {
5477 _cleanup_free_ char *partition = NULL, *mount_options = NULL, *mount_options_resolved = NULL;
5478 MountOptions *o = NULL;
5479 PartitionDesignator partition_designator;
5480
5481 r = extract_many_words(&q, ":", EXTRACT_CUNESCAPE|EXTRACT_UNESCAPE_SEPARATORS, &partition, &mount_options, NULL);
5482 if (r == -ENOMEM)
5483 return log_oom();
5484 if (r < 0) {
5485 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid syntax, ignoring: %s", q);
5486 return 0;
5487 }
5488 if (r == 0)
5489 break;
5490 /* Single set of options, applying to the root partition/single filesystem */
5491 if (r == 1) {
5492 r = unit_full_printf(u, partition, &mount_options_resolved);
5493 if (r < 0) {
5494 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", partition);
5495 continue;
5496 }
5497
5498 o = new(MountOptions, 1);
5499 if (!o)
5500 return log_oom();
5501 *o = (MountOptions) {
5502 .partition_designator = PARTITION_ROOT,
5503 .options = TAKE_PTR(mount_options_resolved),
5504 };
5505 LIST_APPEND(mount_options, options, o);
5506
5507 break;
5508 }
5509
5510 partition_designator = partition_designator_from_string(partition);
5511 if (partition_designator < 0) {
5512 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid partition name %s, ignoring", partition);
5513 continue;
5514 }
5515 r = unit_full_printf(u, mount_options, &mount_options_resolved);
5516 if (r < 0) {
5517 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", mount_options);
5518 continue;
5519 }
5520
5521 o = new(MountOptions, 1);
5522 if (!o)
5523 return log_oom();
5524 *o = (MountOptions) {
5525 .partition_designator = partition_designator,
5526 .options = TAKE_PTR(mount_options_resolved),
5527 };
5528 LIST_APPEND(mount_options, options, o);
5529 }
5530
5531 r = mount_image_add(&c->extension_images, &c->n_extension_images,
5532 &(MountImage) {
5533 .source = sresolved,
5534 .mount_options = options,
5535 .ignore_enoent = permissive,
5536 .type = MOUNT_IMAGE_EXTENSION,
5537 });
5538 if (r < 0)
5539 return log_oom();
5540 }
5541 }
5542
5543 int config_parse_job_timeout_sec(
5544 const char* unit,
5545 const char *filename,
5546 unsigned line,
5547 const char *section,
5548 unsigned section_line,
5549 const char *lvalue,
5550 int ltype,
5551 const char *rvalue,
5552 void *data,
5553 void *userdata) {
5554
5555 Unit *u = data;
5556 usec_t usec;
5557 int r;
5558
5559 assert(filename);
5560 assert(lvalue);
5561 assert(rvalue);
5562 assert(u);
5563
5564 r = parse_sec_fix_0(rvalue, &usec);
5565 if (r < 0) {
5566 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse JobTimeoutSec= parameter, ignoring: %s", rvalue);
5567 return 0;
5568 }
5569
5570 /* If the user explicitly changed JobTimeoutSec= also change JobRunningTimeoutSec=, for compatibility with old
5571 * versions. If JobRunningTimeoutSec= was explicitly set, avoid this however as whatever the user picked should
5572 * count. */
5573
5574 if (!u->job_running_timeout_set)
5575 u->job_running_timeout = usec;
5576
5577 u->job_timeout = usec;
5578
5579 return 0;
5580 }
5581
5582 int config_parse_job_running_timeout_sec(
5583 const char* unit,
5584 const char *filename,
5585 unsigned line,
5586 const char *section,
5587 unsigned section_line,
5588 const char *lvalue,
5589 int ltype,
5590 const char *rvalue,
5591 void *data,
5592 void *userdata) {
5593
5594 Unit *u = data;
5595 usec_t usec;
5596 int r;
5597
5598 assert(filename);
5599 assert(lvalue);
5600 assert(rvalue);
5601 assert(u);
5602
5603 r = parse_sec_fix_0(rvalue, &usec);
5604 if (r < 0) {
5605 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse JobRunningTimeoutSec= parameter, ignoring: %s", rvalue);
5606 return 0;
5607 }
5608
5609 u->job_running_timeout = usec;
5610 u->job_running_timeout_set = true;
5611
5612 return 0;
5613 }
5614
5615 int config_parse_emergency_action(
5616 const char* unit,
5617 const char *filename,
5618 unsigned line,
5619 const char *section,
5620 unsigned section_line,
5621 const char *lvalue,
5622 int ltype,
5623 const char *rvalue,
5624 void *data,
5625 void *userdata) {
5626
5627 Manager *m = NULL;
5628 EmergencyAction *x = data;
5629 int r;
5630
5631 assert(filename);
5632 assert(lvalue);
5633 assert(rvalue);
5634 assert(data);
5635
5636 if (unit)
5637 m = ((Unit*) userdata)->manager;
5638 else
5639 m = data;
5640
5641 r = parse_emergency_action(rvalue, MANAGER_IS_SYSTEM(m), x);
5642 if (r < 0) {
5643 if (r == -EOPNOTSUPP && MANAGER_IS_USER(m)) {
5644 /* Compat mode: remove for systemd 241. */
5645
5646 log_syntax(unit, LOG_INFO, filename, line, r,
5647 "%s= in user mode specified as \"%s\", using \"exit-force\" instead.",
5648 lvalue, rvalue);
5649 *x = EMERGENCY_ACTION_EXIT_FORCE;
5650 return 0;
5651 }
5652
5653 if (r == -EOPNOTSUPP)
5654 log_syntax(unit, LOG_WARNING, filename, line, r,
5655 "%s= specified as %s mode action, ignoring: %s",
5656 lvalue, MANAGER_IS_SYSTEM(m) ? "user" : "system", rvalue);
5657 else
5658 log_syntax(unit, LOG_WARNING, filename, line, r,
5659 "Failed to parse %s=, ignoring: %s", lvalue, rvalue);
5660 return 0;
5661 }
5662
5663 return 0;
5664 }
5665
5666 int config_parse_pid_file(
5667 const char *unit,
5668 const char *filename,
5669 unsigned line,
5670 const char *section,
5671 unsigned section_line,
5672 const char *lvalue,
5673 int ltype,
5674 const char *rvalue,
5675 void *data,
5676 void *userdata) {
5677
5678 _cleanup_free_ char *k = NULL, *n = NULL;
5679 const Unit *u = userdata;
5680 char **s = data;
5681 int r;
5682
5683 assert(filename);
5684 assert(lvalue);
5685 assert(rvalue);
5686 assert(u);
5687
5688 if (isempty(rvalue)) {
5689 /* An empty assignment removes already set value. */
5690 *s = mfree(*s);
5691 return 0;
5692 }
5693
5694 r = unit_path_printf(u, rvalue, &k);
5695 if (r < 0) {
5696 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue);
5697 return 0;
5698 }
5699
5700 /* If this is a relative path make it absolute by prefixing the /run */
5701 n = path_make_absolute(k, u->manager->prefix[EXEC_DIRECTORY_RUNTIME]);
5702 if (!n)
5703 return log_oom();
5704
5705 /* Check that the result is a sensible path */
5706 r = path_simplify_and_warn(n, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
5707 if (r < 0)
5708 return r;
5709
5710 r = patch_var_run(unit, filename, line, lvalue, &n);
5711 if (r < 0)
5712 return r;
5713
5714 free_and_replace(*s, n);
5715 return 0;
5716 }
5717
5718 int config_parse_exit_status(
5719 const char *unit,
5720 const char *filename,
5721 unsigned line,
5722 const char *section,
5723 unsigned section_line,
5724 const char *lvalue,
5725 int ltype,
5726 const char *rvalue,
5727 void *data,
5728 void *userdata) {
5729
5730 int *exit_status = data, r;
5731 uint8_t u;
5732
5733 assert(filename);
5734 assert(lvalue);
5735 assert(rvalue);
5736 assert(exit_status);
5737
5738 if (isempty(rvalue)) {
5739 *exit_status = -1;
5740 return 0;
5741 }
5742
5743 r = safe_atou8(rvalue, &u);
5744 if (r < 0) {
5745 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse exit status '%s', ignoring: %m", rvalue);
5746 return 0;
5747 }
5748
5749 *exit_status = u;
5750 return 0;
5751 }
5752
5753 int config_parse_disable_controllers(
5754 const char *unit,
5755 const char *filename,
5756 unsigned line,
5757 const char *section,
5758 unsigned section_line,
5759 const char *lvalue,
5760 int ltype,
5761 const char *rvalue,
5762 void *data,
5763 void *userdata) {
5764
5765 int r;
5766 CGroupContext *c = data;
5767 CGroupMask disabled_mask;
5768
5769 /* 1. If empty, make all controllers eligible for use again.
5770 * 2. If non-empty, merge all listed controllers, space separated. */
5771
5772 if (isempty(rvalue)) {
5773 c->disable_controllers = 0;
5774 return 0;
5775 }
5776
5777 r = cg_mask_from_string(rvalue, &disabled_mask);
5778 if (r < 0 || disabled_mask <= 0) {
5779 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid cgroup string: %s, ignoring", rvalue);
5780 return 0;
5781 }
5782
5783 c->disable_controllers |= disabled_mask;
5784
5785 return 0;
5786 }
5787
5788 int config_parse_ip_filter_bpf_progs(
5789 const char *unit,
5790 const char *filename,
5791 unsigned line,
5792 const char *section,
5793 unsigned section_line,
5794 const char *lvalue,
5795 int ltype,
5796 const char *rvalue,
5797 void *data,
5798 void *userdata) {
5799
5800 _cleanup_free_ char *resolved = NULL;
5801 const Unit *u = userdata;
5802 char ***paths = data;
5803 int r;
5804
5805 assert(filename);
5806 assert(lvalue);
5807 assert(rvalue);
5808 assert(paths);
5809
5810 if (isempty(rvalue)) {
5811 *paths = strv_free(*paths);
5812 return 0;
5813 }
5814
5815 r = unit_path_printf(u, rvalue, &resolved);
5816 if (r < 0) {
5817 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue);
5818 return 0;
5819 }
5820
5821 r = path_simplify_and_warn(resolved, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
5822 if (r < 0)
5823 return 0;
5824
5825 if (strv_contains(*paths, resolved))
5826 return 0;
5827
5828 r = strv_extend(paths, resolved);
5829 if (r < 0)
5830 return log_oom();
5831
5832 r = bpf_firewall_supported();
5833 if (r < 0)
5834 return r;
5835 if (r != BPF_FIREWALL_SUPPORTED_WITH_MULTI) {
5836 static bool warned = false;
5837
5838 log_full(warned ? LOG_DEBUG : LOG_WARNING,
5839 "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"
5840 "Starting this unit will fail! (This warning is only shown for the first loaded unit using IP firewalling.)", filename, line, lvalue, rvalue);
5841
5842 warned = true;
5843 }
5844
5845 return 0;
5846 }
5847
5848 int config_parse_bpf_foreign_program(
5849 const char *unit,
5850 const char *filename,
5851 unsigned line,
5852 const char *section,
5853 unsigned section_line,
5854 const char *lvalue,
5855 int ltype,
5856 const char *rvalue,
5857 void *data,
5858 void *userdata) {
5859 _cleanup_free_ char *resolved = NULL, *word = NULL;
5860 CGroupContext *c = data;
5861 Unit *u = userdata;
5862 int attach_type, r;
5863
5864 assert(filename);
5865 assert(lvalue);
5866 assert(rvalue);
5867
5868 if (isempty(rvalue)) {
5869 while (c->bpf_foreign_programs)
5870 cgroup_context_remove_bpf_foreign_program(c, c->bpf_foreign_programs);
5871
5872 return 0;
5873 }
5874
5875 r = extract_first_word(&rvalue, &word, ":", 0);
5876 if (r == -ENOMEM)
5877 return log_oom();
5878 if (r <= 0 || isempty(rvalue)) {
5879 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse foreign BPF program, ignoring: %s", rvalue);
5880 return 0;
5881 }
5882
5883 attach_type = bpf_cgroup_attach_type_from_string(word);
5884 if (attach_type < 0) {
5885 log_syntax(unit, LOG_WARNING, filename, line, 0, "Unknown BPF attach type=%s, ignoring: %s", word, rvalue);
5886 return 0;
5887 }
5888
5889 r = unit_path_printf(u, rvalue, &resolved);
5890 if (r < 0) {
5891 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue);
5892 return 0;
5893 }
5894
5895 r = path_simplify_and_warn(resolved, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
5896 if (r < 0)
5897 return 0;
5898
5899 r = cgroup_add_bpf_foreign_program(c, attach_type, resolved);
5900 if (r < 0)
5901 return log_error_errno(r, "Failed to add foreign BPF program to cgroup context: %m");
5902
5903 return 0;
5904 }
5905
5906 int config_parse_cgroup_socket_bind(
5907 const char *unit,
5908 const char *filename,
5909 unsigned line,
5910 const char *section,
5911 unsigned section_line,
5912 const char *lvalue,
5913 int ltype,
5914 const char *rvalue,
5915 void *data,
5916 void *userdata) {
5917 _cleanup_free_ CGroupSocketBindItem *item = NULL;
5918 CGroupSocketBindItem **head = data;
5919 uint16_t nr_ports, port_min;
5920 int af, ip_protocol, r;
5921
5922 if (isempty(rvalue)) {
5923 cgroup_context_remove_socket_bind(head);
5924 return 0;
5925 }
5926
5927 r = parse_socket_bind_item(rvalue, &af, &ip_protocol, &nr_ports, &port_min);
5928 if (r == -ENOMEM)
5929 return log_oom();
5930 if (r < 0) {
5931 log_syntax(unit, LOG_WARNING, filename, line, r,
5932 "Unable to parse %s= assignment, ignoring: %s", lvalue, rvalue);
5933 return 0;
5934 }
5935
5936 item = new(CGroupSocketBindItem, 1);
5937 if (!item)
5938 return log_oom();
5939 *item = (CGroupSocketBindItem) {
5940 .address_family = af,
5941 .ip_protocol = ip_protocol,
5942 .nr_ports = nr_ports,
5943 .port_min = port_min,
5944 };
5945
5946 LIST_PREPEND(socket_bind_items, *head, TAKE_PTR(item));
5947
5948 return 0;
5949 }
5950
5951 int config_parse_restrict_network_interfaces(
5952 const char *unit,
5953 const char *filename,
5954 unsigned line,
5955 const char *section,
5956 unsigned section_line,
5957 const char *lvalue,
5958 int ltype,
5959 const char *rvalue,
5960 void *data,
5961 void *userdata) {
5962 CGroupContext *c = data;
5963 bool is_allow_rule = true;
5964 int r;
5965
5966 assert(filename);
5967 assert(lvalue);
5968 assert(rvalue);
5969 assert(data);
5970
5971 if (isempty(rvalue)) {
5972 /* Empty assignment resets the list */
5973 c->restrict_network_interfaces = set_free(c->restrict_network_interfaces);
5974 return 0;
5975 }
5976
5977 if (rvalue[0] == '~') {
5978 is_allow_rule = false;
5979 rvalue++;
5980 }
5981
5982 if (set_isempty(c->restrict_network_interfaces))
5983 /* Only initialize this when creating the set */
5984 c->restrict_network_interfaces_is_allow_list = is_allow_rule;
5985
5986 for (const char *p = rvalue;;) {
5987 _cleanup_free_ char *word = NULL;
5988
5989 r = extract_first_word(&p, &word, NULL, EXTRACT_UNQUOTE);
5990 if (r == 0)
5991 break;
5992 if (r == -ENOMEM)
5993 return log_oom();
5994 if (r < 0) {
5995 log_syntax(unit, LOG_WARNING, filename, line, r,
5996 "Trailing garbage in %s, ignoring: %s", lvalue, rvalue);
5997 break;
5998 }
5999
6000 if (!ifname_valid(word)) {
6001 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid interface name, ignoring: %s", word);
6002 continue;
6003 }
6004
6005 if (c->restrict_network_interfaces_is_allow_list != is_allow_rule)
6006 free(set_remove(c->restrict_network_interfaces, word));
6007 else {
6008 r = set_put_strdup(&c->restrict_network_interfaces, word);
6009 if (r < 0)
6010 return log_oom();
6011 }
6012 }
6013
6014 return 0;
6015 }
6016
6017 static int merge_by_names(Unit **u, Set *names, const char *id) {
6018 char *k;
6019 int r;
6020
6021 assert(u);
6022 assert(*u);
6023
6024 /* Let's try to add in all names that are aliases of this unit */
6025 while ((k = set_steal_first(names))) {
6026 _cleanup_free_ _unused_ char *free_k = k;
6027
6028 /* First try to merge in the other name into our unit */
6029 r = unit_merge_by_name(*u, k);
6030 if (r < 0) {
6031 Unit *other;
6032
6033 /* Hmm, we couldn't merge the other unit into ours? Then let's try it the other way
6034 * round. */
6035
6036 other = manager_get_unit((*u)->manager, k);
6037 if (!other)
6038 return r; /* return previous failure */
6039
6040 r = unit_merge(other, *u);
6041 if (r < 0)
6042 return r;
6043
6044 *u = other;
6045 return merge_by_names(u, names, NULL);
6046 }
6047
6048 if (streq_ptr(id, k))
6049 unit_choose_id(*u, id);
6050 }
6051
6052 return 0;
6053 }
6054
6055 int unit_load_fragment(Unit *u) {
6056 const char *fragment;
6057 _cleanup_set_free_free_ Set *names = NULL;
6058 int r;
6059
6060 assert(u);
6061 assert(u->load_state == UNIT_STUB);
6062 assert(u->id);
6063
6064 if (u->transient) {
6065 u->load_state = UNIT_LOADED;
6066 return 0;
6067 }
6068
6069 /* Possibly rebuild the fragment map to catch new units */
6070 r = unit_file_build_name_map(&u->manager->lookup_paths,
6071 &u->manager->unit_cache_timestamp_hash,
6072 &u->manager->unit_id_map,
6073 &u->manager->unit_name_map,
6074 &u->manager->unit_path_cache);
6075 if (r < 0)
6076 return log_error_errno(r, "Failed to rebuild name map: %m");
6077
6078 r = unit_file_find_fragment(u->manager->unit_id_map,
6079 u->manager->unit_name_map,
6080 u->id,
6081 &fragment,
6082 &names);
6083 if (r < 0 && r != -ENOENT)
6084 return r;
6085
6086 if (fragment) {
6087 /* Open the file, check if this is a mask, otherwise read. */
6088 _cleanup_fclose_ FILE *f = NULL;
6089 struct stat st;
6090
6091 /* Try to open the file name. A symlink is OK, for example for linked files or masks. We
6092 * expect that all symlinks within the lookup paths have been already resolved, but we don't
6093 * verify this here. */
6094 f = fopen(fragment, "re");
6095 if (!f)
6096 return log_unit_notice_errno(u, errno, "Failed to open %s: %m", fragment);
6097
6098 if (fstat(fileno(f), &st) < 0)
6099 return -errno;
6100
6101 r = free_and_strdup(&u->fragment_path, fragment);
6102 if (r < 0)
6103 return r;
6104
6105 if (null_or_empty(&st)) {
6106 /* Unit file is masked */
6107
6108 u->load_state = u->perpetual ? UNIT_LOADED : UNIT_MASKED; /* don't allow perpetual units to ever be masked */
6109 u->fragment_mtime = 0;
6110 } else {
6111 u->load_state = UNIT_LOADED;
6112 u->fragment_mtime = timespec_load(&st.st_mtim);
6113
6114 /* Now, parse the file contents */
6115 r = config_parse(u->id, fragment, f,
6116 UNIT_VTABLE(u)->sections,
6117 config_item_perf_lookup, load_fragment_gperf_lookup,
6118 0,
6119 u,
6120 NULL);
6121 if (r == -ENOEXEC)
6122 log_unit_notice_errno(u, r, "Unit configuration has fatal error, unit will not be started.");
6123 if (r < 0)
6124 return r;
6125 }
6126 }
6127
6128 /* Call merge_by_names with the name derived from the fragment path as the preferred name.
6129 *
6130 * We do the merge dance here because for some unit types, the unit might have aliases which are not
6131 * declared in the file system. In particular, this is true (and frequent) for device and swap units.
6132 */
6133 const char *id = u->id;
6134 _cleanup_free_ char *free_id = NULL;
6135
6136 if (fragment) {
6137 id = basename(fragment);
6138 if (unit_name_is_valid(id, UNIT_NAME_TEMPLATE)) {
6139 assert(u->instance); /* If we're not trying to use a template for non-instanced unit,
6140 * this must be set. */
6141
6142 r = unit_name_replace_instance(id, u->instance, &free_id);
6143 if (r < 0)
6144 return log_debug_errno(r, "Failed to build id (%s + %s): %m", id, u->instance);
6145 id = free_id;
6146 }
6147 }
6148
6149 Unit *merged = u;
6150 r = merge_by_names(&merged, names, id);
6151 if (r < 0)
6152 return r;
6153
6154 if (merged != u)
6155 u->load_state = UNIT_MERGED;
6156
6157 return 0;
6158 }
6159
6160 void unit_dump_config_items(FILE *f) {
6161 static const struct {
6162 const ConfigParserCallback callback;
6163 const char *rvalue;
6164 } table[] = {
6165 { config_parse_warn_compat, "NOTSUPPORTED" },
6166 { config_parse_int, "INTEGER" },
6167 { config_parse_unsigned, "UNSIGNED" },
6168 { config_parse_iec_size, "SIZE" },
6169 { config_parse_iec_uint64, "SIZE" },
6170 { config_parse_si_uint64, "SIZE" },
6171 { config_parse_bool, "BOOLEAN" },
6172 { config_parse_string, "STRING" },
6173 { config_parse_path, "PATH" },
6174 { config_parse_unit_path_printf, "PATH" },
6175 { config_parse_colon_separated_paths, "PATH" },
6176 { config_parse_strv, "STRING [...]" },
6177 { config_parse_exec_nice, "NICE" },
6178 { config_parse_exec_oom_score_adjust, "OOMSCOREADJUST" },
6179 { config_parse_exec_io_class, "IOCLASS" },
6180 { config_parse_exec_io_priority, "IOPRIORITY" },
6181 { config_parse_exec_cpu_sched_policy, "CPUSCHEDPOLICY" },
6182 { config_parse_exec_cpu_sched_prio, "CPUSCHEDPRIO" },
6183 { config_parse_exec_cpu_affinity, "CPUAFFINITY" },
6184 { config_parse_mode, "MODE" },
6185 { config_parse_unit_env_file, "FILE" },
6186 { config_parse_exec_output, "OUTPUT" },
6187 { config_parse_exec_input, "INPUT" },
6188 { config_parse_log_facility, "FACILITY" },
6189 { config_parse_log_level, "LEVEL" },
6190 { config_parse_exec_secure_bits, "SECUREBITS" },
6191 { config_parse_capability_set, "BOUNDINGSET" },
6192 { config_parse_rlimit, "LIMIT" },
6193 { config_parse_unit_deps, "UNIT [...]" },
6194 { config_parse_exec, "PATH [ARGUMENT [...]]" },
6195 { config_parse_service_type, "SERVICETYPE" },
6196 { config_parse_service_exit_type, "SERVICEEXITTYPE" },
6197 { config_parse_service_restart, "SERVICERESTART" },
6198 { config_parse_service_timeout_failure_mode, "TIMEOUTMODE" },
6199 { config_parse_kill_mode, "KILLMODE" },
6200 { config_parse_signal, "SIGNAL" },
6201 { config_parse_socket_listen, "SOCKET [...]" },
6202 { config_parse_socket_bind, "SOCKETBIND" },
6203 { config_parse_socket_bindtodevice, "NETWORKINTERFACE" },
6204 { config_parse_sec, "SECONDS" },
6205 { config_parse_nsec, "NANOSECONDS" },
6206 { config_parse_namespace_path_strv, "PATH [...]" },
6207 { config_parse_bind_paths, "PATH[:PATH[:OPTIONS]] [...]" },
6208 { config_parse_unit_requires_mounts_for, "PATH [...]" },
6209 { config_parse_exec_mount_flags, "MOUNTFLAG [...]" },
6210 { config_parse_unit_string_printf, "STRING" },
6211 { config_parse_trigger_unit, "UNIT" },
6212 { config_parse_timer, "TIMER" },
6213 { config_parse_path_spec, "PATH" },
6214 { config_parse_notify_access, "ACCESS" },
6215 { config_parse_ip_tos, "TOS" },
6216 { config_parse_unit_condition_path, "CONDITION" },
6217 { config_parse_unit_condition_string, "CONDITION" },
6218 { config_parse_unit_slice, "SLICE" },
6219 { config_parse_documentation, "URL" },
6220 { config_parse_service_timeout, "SECONDS" },
6221 { config_parse_emergency_action, "ACTION" },
6222 { config_parse_set_status, "STATUS" },
6223 { config_parse_service_sockets, "SOCKETS" },
6224 { config_parse_environ, "ENVIRON" },
6225 #if HAVE_SECCOMP
6226 { config_parse_syscall_filter, "SYSCALLS" },
6227 { config_parse_syscall_archs, "ARCHS" },
6228 { config_parse_syscall_errno, "ERRNO" },
6229 { config_parse_syscall_log, "SYSCALLS" },
6230 { config_parse_address_families, "FAMILIES" },
6231 { config_parse_restrict_namespaces, "NAMESPACES" },
6232 #endif
6233 { config_parse_restrict_filesystems, "FILESYSTEMS" },
6234 { config_parse_cpu_shares, "SHARES" },
6235 { config_parse_cg_weight, "WEIGHT" },
6236 { config_parse_memory_limit, "LIMIT" },
6237 { config_parse_device_allow, "DEVICE" },
6238 { config_parse_device_policy, "POLICY" },
6239 { config_parse_io_limit, "LIMIT" },
6240 { config_parse_io_device_weight, "DEVICEWEIGHT" },
6241 { config_parse_io_device_latency, "DEVICELATENCY" },
6242 { config_parse_blockio_bandwidth, "BANDWIDTH" },
6243 { config_parse_blockio_weight, "WEIGHT" },
6244 { config_parse_blockio_device_weight, "DEVICEWEIGHT" },
6245 { config_parse_long, "LONG" },
6246 { config_parse_socket_service, "SERVICE" },
6247 #if HAVE_SELINUX
6248 { config_parse_exec_selinux_context, "LABEL" },
6249 #endif
6250 { config_parse_job_mode, "MODE" },
6251 { config_parse_job_mode_isolate, "BOOLEAN" },
6252 { config_parse_personality, "PERSONALITY" },
6253 };
6254
6255 const char *prev = NULL;
6256 const char *i;
6257
6258 assert(f);
6259
6260 NULSTR_FOREACH(i, load_fragment_gperf_nulstr) {
6261 const char *rvalue = "OTHER", *lvalue;
6262 const ConfigPerfItem *p;
6263 const char *dot;
6264
6265 assert_se(p = load_fragment_gperf_lookup(i, strlen(i)));
6266
6267 /* Hide legacy settings */
6268 if (p->parse == config_parse_warn_compat &&
6269 p->ltype == DISABLED_LEGACY)
6270 continue;
6271
6272 for (size_t j = 0; j < ELEMENTSOF(table); j++)
6273 if (p->parse == table[j].callback) {
6274 rvalue = table[j].rvalue;
6275 break;
6276 }
6277
6278 dot = strchr(i, '.');
6279 lvalue = dot ? dot + 1 : i;
6280
6281 if (dot) {
6282 size_t prefix_len = dot - i;
6283
6284 if (!prev || !strneq(prev, i, prefix_len+1)) {
6285 if (prev)
6286 fputc('\n', f);
6287
6288 fprintf(f, "[%.*s]\n", (int) prefix_len, i);
6289 }
6290 }
6291
6292 fprintf(f, "%s=%s\n", lvalue, rvalue);
6293 prev = i;
6294 }
6295 }
6296
6297 int config_parse_cpu_affinity2(
6298 const char *unit,
6299 const char *filename,
6300 unsigned line,
6301 const char *section,
6302 unsigned section_line,
6303 const char *lvalue,
6304 int ltype,
6305 const char *rvalue,
6306 void *data,
6307 void *userdata) {
6308
6309 CPUSet *affinity = data;
6310
6311 assert(affinity);
6312
6313 (void) parse_cpu_set_extend(rvalue, affinity, true, unit, filename, line, lvalue);
6314
6315 return 0;
6316 }
6317
6318 int config_parse_show_status(
6319 const char* unit,
6320 const char *filename,
6321 unsigned line,
6322 const char *section,
6323 unsigned section_line,
6324 const char *lvalue,
6325 int ltype,
6326 const char *rvalue,
6327 void *data,
6328 void *userdata) {
6329
6330 int k;
6331 ShowStatus *b = data;
6332
6333 assert(filename);
6334 assert(lvalue);
6335 assert(rvalue);
6336 assert(data);
6337
6338 k = parse_show_status(rvalue, b);
6339 if (k < 0)
6340 log_syntax(unit, LOG_WARNING, filename, line, k, "Failed to parse show status setting, ignoring: %s", rvalue);
6341
6342 return 0;
6343 }
6344
6345 int config_parse_output_restricted(
6346 const char* unit,
6347 const char *filename,
6348 unsigned line,
6349 const char *section,
6350 unsigned section_line,
6351 const char *lvalue,
6352 int ltype,
6353 const char *rvalue,
6354 void *data,
6355 void *userdata) {
6356
6357 ExecOutput t, *eo = data;
6358 bool obsolete = false;
6359
6360 assert(filename);
6361 assert(lvalue);
6362 assert(rvalue);
6363 assert(data);
6364
6365 if (streq(rvalue, "syslog")) {
6366 t = EXEC_OUTPUT_JOURNAL;
6367 obsolete = true;
6368 } else if (streq(rvalue, "syslog+console")) {
6369 t = EXEC_OUTPUT_JOURNAL_AND_CONSOLE;
6370 obsolete = true;
6371 } else {
6372 t = exec_output_from_string(rvalue);
6373 if (t < 0) {
6374 log_syntax(unit, LOG_WARNING, filename, line, t, "Failed to parse output type, ignoring: %s", rvalue);
6375 return 0;
6376 }
6377
6378 if (IN_SET(t, EXEC_OUTPUT_SOCKET, EXEC_OUTPUT_NAMED_FD, EXEC_OUTPUT_FILE, EXEC_OUTPUT_FILE_APPEND, EXEC_OUTPUT_FILE_TRUNCATE)) {
6379 log_syntax(unit, LOG_WARNING, filename, line, 0, "Standard output types socket, fd:, file:, append:, truncate: are not supported as defaults, ignoring: %s", rvalue);
6380 return 0;
6381 }
6382 }
6383
6384 if (obsolete)
6385 log_syntax(unit, LOG_NOTICE, filename, line, 0,
6386 "Standard output type %s is obsolete, automatically updating to %s. Please update your configuration.",
6387 rvalue, exec_output_to_string(t));
6388
6389 *eo = t;
6390 return 0;
6391 }
6392
6393 int config_parse_crash_chvt(
6394 const char* unit,
6395 const char *filename,
6396 unsigned line,
6397 const char *section,
6398 unsigned section_line,
6399 const char *lvalue,
6400 int ltype,
6401 const char *rvalue,
6402 void *data,
6403 void *userdata) {
6404
6405 int r;
6406
6407 assert(filename);
6408 assert(lvalue);
6409 assert(rvalue);
6410 assert(data);
6411
6412 r = parse_crash_chvt(rvalue, data);
6413 if (r < 0)
6414 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse CrashChangeVT= setting, ignoring: %s", rvalue);
6415
6416 return 0;
6417 }
6418
6419 int config_parse_swap_priority(
6420 const char *unit,
6421 const char *filename,
6422 unsigned line,
6423 const char *section,
6424 unsigned section_line,
6425 const char *lvalue,
6426 int ltype,
6427 const char *rvalue,
6428 void *data,
6429 void *userdata) {
6430
6431 Swap *s = userdata;
6432 int r, priority;
6433
6434 assert(s);
6435 assert(filename);
6436 assert(lvalue);
6437 assert(rvalue);
6438 assert(data);
6439
6440 if (isempty(rvalue)) {
6441 s->parameters_fragment.priority = -1;
6442 s->parameters_fragment.priority_set = false;
6443 return 0;
6444 }
6445
6446 r = safe_atoi(rvalue, &priority);
6447 if (r < 0) {
6448 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid swap priority '%s', ignoring.", rvalue);
6449 return 0;
6450 }
6451
6452 if (priority < -1) {
6453 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);
6454 return 0;
6455 }
6456
6457 if (priority > 32767) {
6458 log_syntax(unit, LOG_WARNING, filename, line, 0, "Swap priority out of range, ignoring: %s", rvalue);
6459 return 0;
6460 }
6461
6462 s->parameters_fragment.priority = priority;
6463 s->parameters_fragment.priority_set = true;
6464 return 0;
6465 }
6466
6467 int config_parse_watchdog_sec(
6468 const char *unit,
6469 const char *filename,
6470 unsigned line,
6471 const char *section,
6472 unsigned section_line,
6473 const char *lvalue,
6474 int ltype,
6475 const char *rvalue,
6476 void *data,
6477 void *userdata) {
6478
6479 usec_t *usec = data;
6480
6481 assert(filename);
6482 assert(lvalue);
6483 assert(rvalue);
6484
6485 /* This is called for {Runtime,Reboot,KExec}WatchdogSec= where "default" maps to
6486 * USEC_INFINITY internally. */
6487
6488 if (streq(rvalue, "default"))
6489 *usec = USEC_INFINITY;
6490 else if (streq(rvalue, "off"))
6491 *usec = 0;
6492 else
6493 return config_parse_sec(unit, filename, line, section, section_line, lvalue, ltype, rvalue, data, userdata);
6494
6495 return 0;
6496 }
6497
6498 int config_parse_tty_size(
6499 const char *unit,
6500 const char *filename,
6501 unsigned line,
6502 const char *section,
6503 unsigned section_line,
6504 const char *lvalue,
6505 int ltype,
6506 const char *rvalue,
6507 void *data,
6508 void *userdata) {
6509
6510 unsigned *sz = data;
6511
6512 assert(filename);
6513 assert(lvalue);
6514 assert(rvalue);
6515
6516 if (isempty(rvalue)) {
6517 *sz = UINT_MAX;
6518 return 0;
6519 }
6520
6521 return config_parse_unsigned(unit, filename, line, section, section_line, lvalue, ltype, rvalue, data, userdata);
6522 }
Unnamed repository; edit this file 'description' to name the repository.