]> git.ipfire.org Git - thirdparty/systemd.git/blob - src/core/load-fragment.c
projects / thirdparty / systemd.git / blob
? search:


5f4e642e545c89f7426c79adc51f7873350d3265
[thirdparty/systemd.git] / src / core / load-fragment.c
1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
2 /***
3 Copyright © 2012 Holger Hans Peter Freyther
4 ***/
5
6 #include <errno.h>
7 #include <fcntl.h>
8 #include <linux/fs.h>
9 #include <linux/oom.h>
10 #include <sched.h>
11 #include <sys/resource.h>
12
13 #include "sd-messages.h"
14
15 #include "af-list.h"
16 #include "all-units.h"
17 #include "alloc-util.h"
18 #include "bpf-firewall.h"
19 #include "bpf-lsm.h"
20 #include "bpf-program.h"
21 #include "bpf-socket-bind.h"
22 #include "bus-error.h"
23 #include "bus-internal.h"
24 #include "bus-util.h"
25 #include "cap-list.h"
26 #include "capability-util.h"
27 #include "cgroup-setup.h"
28 #include "conf-parser.h"
29 #include "core-varlink.h"
30 #include "cpu-set-util.h"
31 #include "creds-util.h"
32 #include "env-util.h"
33 #include "errno-list.h"
34 #include "escape.h"
35 #include "exec-credential.h"
36 #include "execute.h"
37 #include "fd-util.h"
38 #include "fileio.h"
39 #include "firewall-util.h"
40 #include "fs-util.h"
41 #include "fstab-util.h"
42 #include "hexdecoct.h"
43 #include "iovec-util.h"
44 #include "ioprio-util.h"
45 #include "ip-protocol-list.h"
46 #include "journal-file.h"
47 #include "limits-util.h"
48 #include "load-fragment.h"
49 #include "log.h"
50 #include "missing_ioprio.h"
51 #include "mountpoint-util.h"
52 #include "nulstr-util.h"
53 #include "open-file.h"
54 #include "parse-helpers.h"
55 #include "parse-util.h"
56 #include "path-util.h"
57 #include "pcre2-util.h"
58 #include "percent-util.h"
59 #include "process-util.h"
60 #include "seccomp-util.h"
61 #include "securebits-util.h"
62 #include "selinux-util.h"
63 #include "signal-util.h"
64 #include "socket-netlink.h"
65 #include "specifier.h"
66 #include "stat-util.h"
67 #include "string-util.h"
68 #include "strv.h"
69 #include "syslog-util.h"
70 #include "time-util.h"
71 #include "unit-name.h"
72 #include "unit-printf.h"
73 #include "user-util.h"
74 #include "utf8.h"
75 #include "web-util.h"
76
77 static int parse_socket_protocol(const char *s) {
78 int r;
79
80 r = parse_ip_protocol(s);
81 if (r < 0)
82 return r;
83 if (!IN_SET(r, IPPROTO_UDPLITE, IPPROTO_SCTP))
84 return -EPROTONOSUPPORT;
85
86 return r;
87 }
88
89 int parse_crash_chvt(const char *value, int *data) {
90 int b;
91
92 if (safe_atoi(value, data) >= 0)
93 return 0;
94
95 b = parse_boolean(value);
96 if (b < 0)
97 return b;
98
99 if (b > 0)
100 *data = 0; /* switch to where kmsg goes */
101 else
102 *data = -1; /* turn off switching */
103
104 return 0;
105 }
106
107 int parse_confirm_spawn(const char *value, char **console) {
108 char *s;
109 int r;
110
111 r = value ? parse_boolean(value) : 1;
112 if (r == 0) {
113 *console = NULL;
114 return 0;
115 } else if (r > 0) /* on with default tty */
116 s = strdup("/dev/console");
117 else if (is_path(value)) /* on with fully qualified path */
118 s = strdup(value);
119 else /* on with only a tty file name, not a fully qualified path */
120 s = path_join("/dev/", value);
121 if (!s)
122 return -ENOMEM;
123
124 *console = s;
125 return 0;
126 }
127
128 DEFINE_CONFIG_PARSE(config_parse_socket_protocol, parse_socket_protocol, "Failed to parse socket protocol");
129 DEFINE_CONFIG_PARSE(config_parse_exec_secure_bits, secure_bits_from_string, "Failed to parse secure bits");
130 DEFINE_CONFIG_PARSE_ENUM(config_parse_collect_mode, collect_mode, CollectMode, "Failed to parse garbage collection mode");
131 DEFINE_CONFIG_PARSE_ENUM(config_parse_device_policy, cgroup_device_policy, CGroupDevicePolicy, "Failed to parse device policy");
132 DEFINE_CONFIG_PARSE_ENUM(config_parse_exec_keyring_mode, exec_keyring_mode, ExecKeyringMode, "Failed to parse keyring mode");
133 DEFINE_CONFIG_PARSE_ENUM(config_parse_protect_proc, protect_proc, ProtectProc, "Failed to parse /proc/ protection mode");
134 DEFINE_CONFIG_PARSE_ENUM(config_parse_proc_subset, proc_subset, ProcSubset, "Failed to parse /proc/ subset mode");
135 DEFINE_CONFIG_PARSE_ENUM(config_parse_exec_utmp_mode, exec_utmp_mode, ExecUtmpMode, "Failed to parse utmp mode");
136 DEFINE_CONFIG_PARSE_ENUM(config_parse_job_mode, job_mode, JobMode, "Failed to parse job mode");
137 DEFINE_CONFIG_PARSE_ENUM(config_parse_notify_access, notify_access, NotifyAccess, "Failed to parse notify access specifier");
138 DEFINE_CONFIG_PARSE_ENUM(config_parse_protect_home, protect_home, ProtectHome, "Failed to parse protect home value");
139 DEFINE_CONFIG_PARSE_ENUM(config_parse_protect_system, protect_system, ProtectSystem, "Failed to parse protect system value");
140 DEFINE_CONFIG_PARSE_ENUM(config_parse_exec_preserve_mode, exec_preserve_mode, ExecPreserveMode, "Failed to parse resource preserve mode");
141 DEFINE_CONFIG_PARSE_ENUM(config_parse_service_type, service_type, ServiceType, "Failed to parse service type");
142 DEFINE_CONFIG_PARSE_ENUM(config_parse_service_exit_type, service_exit_type, ServiceExitType, "Failed to parse service exit type");
143 DEFINE_CONFIG_PARSE_ENUM(config_parse_service_restart, service_restart, ServiceRestart, "Failed to parse service restart specifier");
144 DEFINE_CONFIG_PARSE_ENUM(config_parse_service_restart_mode, service_restart_mode, ServiceRestartMode, "Failed to parse service restart mode");
145 DEFINE_CONFIG_PARSE_ENUM(config_parse_service_timeout_failure_mode, service_timeout_failure_mode, ServiceTimeoutFailureMode, "Failed to parse timeout failure mode");
146 DEFINE_CONFIG_PARSE_ENUM(config_parse_socket_bind, socket_address_bind_ipv6_only_or_bool, SocketAddressBindIPv6Only, "Failed to parse bind IPv6 only value");
147 DEFINE_CONFIG_PARSE_ENUM(config_parse_oom_policy, oom_policy, OOMPolicy, "Failed to parse OOM policy");
148 DEFINE_CONFIG_PARSE_ENUM(config_parse_managed_oom_preference, managed_oom_preference, ManagedOOMPreference, "Failed to parse ManagedOOMPreference=");
149 DEFINE_CONFIG_PARSE_ENUM(config_parse_memory_pressure_watch, cgroup_pressure_watch, CGroupPressureWatch, "Failed to parse memory pressure watch setting");
150 DEFINE_CONFIG_PARSE_ENUM_WITH_DEFAULT(config_parse_ip_tos, ip_tos, int, -1, "Failed to parse IP TOS value");
151 DEFINE_CONFIG_PARSE_PTR(config_parse_blockio_weight, cg_blkio_weight_parse, uint64_t, "Invalid block IO weight");
152 DEFINE_CONFIG_PARSE_PTR(config_parse_cg_weight, cg_weight_parse, uint64_t, "Invalid weight");
153 DEFINE_CONFIG_PARSE_PTR(config_parse_cg_cpu_weight, cg_cpu_weight_parse, uint64_t, "Invalid CPU weight");
154 static DEFINE_CONFIG_PARSE_PTR(config_parse_cpu_shares_internal, cg_cpu_shares_parse, uint64_t, "Invalid CPU shares");
155 DEFINE_CONFIG_PARSE_PTR(config_parse_exec_mount_propagation_flag, mount_propagation_flag_from_string, unsigned long, "Failed to parse mount propagation flag");
156 DEFINE_CONFIG_PARSE_ENUM_WITH_DEFAULT(config_parse_numa_policy, mpol, int, -1, "Invalid NUMA policy type");
157 DEFINE_CONFIG_PARSE_ENUM(config_parse_status_unit_format, status_unit_format, StatusUnitFormat, "Failed to parse status unit format");
158 DEFINE_CONFIG_PARSE_ENUM_FULL(config_parse_socket_timestamping, socket_timestamping_from_string_harder, SocketTimestamping, "Failed to parse timestamping precision");
159
160 int config_parse_cpu_shares(
161 const char *unit,
162 const char *filename,
163 unsigned line,
164 const char *section,
165 unsigned section_line,
166 const char *lvalue,
167 int ltype,
168 const char *rvalue,
169 void *data,
170 void *userdata) {
171
172 assert(filename);
173 assert(lvalue);
174 assert(rvalue);
175
176
177 log_syntax(unit, LOG_WARNING, filename, line, 0,
178 "Unit uses %s=; please use CPUWeight= instead. Support for %s= will be removed soon.",
179 lvalue, lvalue);
180
181 return config_parse_cpu_shares_internal(unit, filename, line, section, section_line, lvalue, ltype, rvalue, data, userdata);
182 }
183
184 bool contains_instance_specifier_superset(const char *s) {
185 const char *p, *q;
186 bool percent = false;
187
188 assert(s);
189
190 p = strchr(s, '@');
191 if (!p)
192 return false;
193
194 p++; /* Skip '@' */
195
196 q = strrchr(p, '.');
197 if (!q)
198 q = p + strlen(p);
199
200 /* If the string is just the instance specifier, it's not a superset of the instance. */
201 if (memcmp_nn(p, q - p, "%i", strlen("%i")) == 0)
202 return false;
203
204 /* %i, %n and %N all expand to the instance or a superset of it. */
205 for (; p < q; p++)
206 if (*p == '%')
207 percent = !percent;
208 else if (percent) {
209 if (IN_SET(*p, 'n', 'N', 'i'))
210 return true;
211 percent = false;
212 }
213
214 return false;
215 }
216
217 /* `name` is the rendered version of `format` via `unit_printf` or similar functions. */
218 int unit_is_likely_recursive_template_dependency(Unit *u, const char *name, const char *format) {
219 const char *fragment_path;
220 int r;
221
222 assert(u);
223 assert(name);
224
225 /* If a template unit has a direct dependency on itself that includes the unit instance as part of
226 * the template instance via a unit specifier (%i, %n or %N), this will almost certainly lead to
227 * infinite recursion as systemd will keep instantiating new instances of the template unit.
228 * https://github.com/systemd/systemd/issues/17602 shows a good example of how this can happen in
229 * practice. To guard against this, we check for templates that depend on themselves and have the
230 * instantiated unit instance included as part of the template instance of the dependency via a
231 * specifier.
232 *
233 * For example, if systemd-notify@.service depends on systemd-notify@%n.service, this will result in
234 * infinite recursion.
235 */
236
237 if (!unit_name_is_valid(name, UNIT_NAME_INSTANCE))
238 return false;
239
240 if (!unit_name_prefix_equal(u->id, name))
241 return false;
242
243 if (u->type != unit_name_to_type(name))
244 return false;
245
246 r = unit_file_find_fragment(u->manager->unit_id_map, u->manager->unit_name_map, name, &fragment_path, NULL);
247 if (r < 0)
248 return r;
249
250 /* Fragment paths should also be equal as a custom fragment for a specific template instance
251 * wouldn't necessarily lead to infinite recursion. */
252 if (!path_equal_ptr(u->fragment_path, fragment_path))
253 return false;
254
255 if (!contains_instance_specifier_superset(format))
256 return false;
257
258 return true;
259 }
260
261 int config_parse_unit_deps(
262 const char *unit,
263 const char *filename,
264 unsigned line,
265 const char *section,
266 unsigned section_line,
267 const char *lvalue,
268 int ltype,
269 const char *rvalue,
270 void *data,
271 void *userdata) {
272
273 UnitDependency d = ltype;
274 Unit *u = userdata;
275
276 assert(filename);
277 assert(lvalue);
278 assert(rvalue);
279
280 for (const char *p = rvalue;;) {
281 _cleanup_free_ char *word = NULL, *k = NULL;
282 int r;
283
284 r = extract_first_word(&p, &word, NULL, EXTRACT_RETAIN_ESCAPE);
285 if (r == 0)
286 return 0;
287 if (r == -ENOMEM)
288 return log_oom();
289 if (r < 0) {
290 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid syntax, ignoring: %s", rvalue);
291 return 0;
292 }
293
294 r = unit_name_printf(u, word, &k);
295 if (r < 0) {
296 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", word);
297 continue;
298 }
299
300 r = unit_is_likely_recursive_template_dependency(u, k, word);
301 if (r < 0) {
302 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to determine if '%s' is a recursive dependency, ignoring: %m", k);
303 continue;
304 }
305 if (r > 0) {
306 log_syntax(unit, LOG_DEBUG, filename, line, 0,
307 "Dropping dependency %s=%s that likely leads to infinite recursion.",
308 unit_dependency_to_string(d), word);
309 continue;
310 }
311
312 r = unit_add_dependency_by_name(u, d, k, true, UNIT_DEPENDENCY_FILE);
313 if (r < 0)
314 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to add dependency on %s, ignoring: %m", k);
315 }
316 }
317
318 int config_parse_obsolete_unit_deps(
319 const char *unit,
320 const char *filename,
321 unsigned line,
322 const char *section,
323 unsigned section_line,
324 const char *lvalue,
325 int ltype,
326 const char *rvalue,
327 void *data,
328 void *userdata) {
329
330 log_syntax(unit, LOG_WARNING, filename, line, 0,
331 "Unit dependency type %s= is obsolete, replacing by %s=, please update your unit file", lvalue, unit_dependency_to_string(ltype));
332
333 return config_parse_unit_deps(unit, filename, line, section, section_line, lvalue, ltype, rvalue, data, userdata);
334 }
335
336 int config_parse_unit_string_printf(
337 const char *unit,
338 const char *filename,
339 unsigned line,
340 const char *section,
341 unsigned section_line,
342 const char *lvalue,
343 int ltype,
344 const char *rvalue,
345 void *data,
346 void *userdata) {
347
348 _cleanup_free_ char *k = NULL;
349 const Unit *u = ASSERT_PTR(userdata);
350 int r;
351
352 assert(filename);
353 assert(lvalue);
354 assert(rvalue);
355
356 r = unit_full_printf(u, rvalue, &k);
357 if (r < 0) {
358 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue);
359 return 0;
360 }
361
362 return config_parse_string(unit, filename, line, section, section_line, lvalue, ltype, k, data, userdata);
363 }
364
365 int config_parse_unit_strv_printf(
366 const char *unit,
367 const char *filename,
368 unsigned line,
369 const char *section,
370 unsigned section_line,
371 const char *lvalue,
372 int ltype,
373 const char *rvalue,
374 void *data,
375 void *userdata) {
376
377 const Unit *u = ASSERT_PTR(userdata);
378 _cleanup_free_ char *k = NULL;
379 int r;
380
381 assert(filename);
382 assert(lvalue);
383 assert(rvalue);
384
385 r = unit_full_printf(u, rvalue, &k);
386 if (r < 0) {
387 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue);
388 return 0;
389 }
390
391 return config_parse_strv(unit, filename, line, section, section_line, lvalue, ltype, k, data, userdata);
392 }
393
394 int config_parse_unit_path_printf(
395 const char *unit,
396 const char *filename,
397 unsigned line,
398 const char *section,
399 unsigned section_line,
400 const char *lvalue,
401 int ltype,
402 const char *rvalue,
403 void *data,
404 void *userdata) {
405
406 _cleanup_free_ char *k = NULL;
407 const Unit *u = ASSERT_PTR(userdata);
408 int r;
409 bool fatal = ltype;
410
411 assert(filename);
412 assert(lvalue);
413 assert(rvalue);
414
415 r = unit_path_printf(u, rvalue, &k);
416 if (r < 0) {
417 log_syntax(unit, fatal ? LOG_ERR : LOG_WARNING, filename, line, r,
418 "Failed to resolve unit specifiers in '%s'%s: %m",
419 rvalue, fatal ? "" : ", ignoring");
420 return fatal ? -ENOEXEC : 0;
421 }
422
423 return config_parse_path(unit, filename, line, section, section_line, lvalue, ltype, k, data, userdata);
424 }
425
426 int config_parse_colon_separated_paths(
427 const char *unit,
428 const char *filename,
429 unsigned line,
430 const char *section,
431 unsigned section_line,
432 const char *lvalue,
433 int ltype,
434 const char *rvalue,
435 void *data,
436 void *userdata) {
437 char ***sv = ASSERT_PTR(data);
438 const Unit *u = userdata;
439 int r;
440
441 assert(filename);
442 assert(lvalue);
443 assert(rvalue);
444
445 if (isempty(rvalue)) {
446 /* Empty assignment resets the list */
447 *sv = strv_free(*sv);
448 return 0;
449 }
450
451 for (const char *p = rvalue;;) {
452 _cleanup_free_ char *word = NULL, *k = NULL;
453
454 r = extract_first_word(&p, &word, ":", EXTRACT_DONT_COALESCE_SEPARATORS);
455 if (r == -ENOMEM)
456 return log_oom();
457 if (r < 0) {
458 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to extract first word, ignoring: %s", rvalue);
459 return 0;
460 }
461 if (r == 0)
462 break;
463
464 r = unit_path_printf(u, word, &k);
465 if (r < 0) {
466 log_syntax(unit, LOG_WARNING, filename, line, r,
467 "Failed to resolve unit specifiers in '%s', ignoring: %m", word);
468 return 0;
469 }
470
471 r = path_simplify_and_warn(k, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
472 if (r < 0)
473 return 0;
474
475 r = strv_consume(sv, TAKE_PTR(k));
476 if (r < 0)
477 return log_oom();
478 }
479
480 return 0;
481 }
482
483 int config_parse_unit_path_strv_printf(
484 const char *unit,
485 const char *filename,
486 unsigned line,
487 const char *section,
488 unsigned section_line,
489 const char *lvalue,
490 int ltype,
491 const char *rvalue,
492 void *data,
493 void *userdata) {
494
495 char ***x = data;
496 const Unit *u = ASSERT_PTR(userdata);
497 int r;
498
499 assert(filename);
500 assert(lvalue);
501 assert(rvalue);
502
503 if (isempty(rvalue)) {
504 *x = strv_free(*x);
505 return 0;
506 }
507
508 for (const char *p = rvalue;;) {
509 _cleanup_free_ char *word = NULL, *k = NULL;
510
511 r = extract_first_word(&p, &word, NULL, EXTRACT_UNQUOTE);
512 if (r == 0)
513 return 0;
514 if (r == -ENOMEM)
515 return log_oom();
516 if (r < 0) {
517 log_syntax(unit, LOG_WARNING, filename, line, r,
518 "Invalid syntax, ignoring: %s", rvalue);
519 return 0;
520 }
521
522 r = unit_path_printf(u, word, &k);
523 if (r < 0) {
524 log_syntax(unit, LOG_WARNING, filename, line, r,
525 "Failed to resolve unit specifiers in '%s', ignoring: %m", word);
526 return 0;
527 }
528
529 r = path_simplify_and_warn(k, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
530 if (r < 0)
531 return 0;
532
533 r = strv_consume(x, TAKE_PTR(k));
534 if (r < 0)
535 return log_oom();
536 }
537 }
538
539 static int patch_var_run(
540 const char *unit,
541 const char *filename,
542 unsigned line,
543 const char *lvalue,
544 char **path) {
545
546 const char *e;
547 char *z;
548
549 e = path_startswith(*path, "/var/run/");
550 if (!e)
551 return 0;
552
553 z = path_join("/run/", e);
554 if (!z)
555 return log_oom();
556
557 log_syntax(unit, LOG_NOTICE, filename, line, 0,
558 "%s= references a path below legacy directory /var/run/, updating %s → %s; "
559 "please update the unit file accordingly.", lvalue, *path, z);
560
561 free_and_replace(*path, z);
562
563 return 1;
564 }
565
566 int config_parse_socket_listen(
567 const char *unit,
568 const char *filename,
569 unsigned line,
570 const char *section,
571 unsigned section_line,
572 const char *lvalue,
573 int ltype,
574 const char *rvalue,
575 void *data,
576 void *userdata) {
577
578 _cleanup_free_ SocketPort *p = NULL;
579 SocketPort *tail;
580 Socket *s;
581 int r;
582
583 assert(filename);
584 assert(lvalue);
585 assert(rvalue);
586 assert(data);
587
588 s = SOCKET(data);
589
590 if (isempty(rvalue)) {
591 /* An empty assignment removes all ports */
592 socket_free_ports(s);
593 return 0;
594 }
595
596 p = new0(SocketPort, 1);
597 if (!p)
598 return log_oom();
599
600 if (ltype != SOCKET_SOCKET) {
601 _cleanup_free_ char *k = NULL;
602
603 r = unit_path_printf(UNIT(s), rvalue, &k);
604 if (r < 0) {
605 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue);
606 return 0;
607 }
608
609 r = path_simplify_and_warn(k, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
610 if (r < 0)
611 return 0;
612
613 if (ltype == SOCKET_FIFO) {
614 r = patch_var_run(unit, filename, line, lvalue, &k);
615 if (r < 0)
616 return r;
617 }
618
619 free_and_replace(p->path, k);
620 p->type = ltype;
621
622 } else if (streq(lvalue, "ListenNetlink")) {
623 _cleanup_free_ char *k = NULL;
624
625 r = unit_path_printf(UNIT(s), rvalue, &k);
626 if (r < 0) {
627 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue);
628 return 0;
629 }
630
631 r = socket_address_parse_netlink(&p->address, k);
632 if (r < 0) {
633 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse address value in '%s', ignoring: %m", k);
634 return 0;
635 }
636
637 p->type = SOCKET_SOCKET;
638
639 } else {
640 _cleanup_free_ char *k = NULL;
641
642 r = unit_path_printf(UNIT(s), rvalue, &k);
643 if (r < 0) {
644 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue);
645 return 0;
646 }
647
648 if (k[0] == '/') { /* Only for AF_UNIX file system sockets… */
649 r = patch_var_run(unit, filename, line, lvalue, &k);
650 if (r < 0)
651 return r;
652 }
653
654 r = socket_address_parse_and_warn(&p->address, k);
655 if (r < 0) {
656 if (r != -EAFNOSUPPORT)
657 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse address value in '%s', ignoring: %m", k);
658 return 0;
659 }
660
661 if (streq(lvalue, "ListenStream"))
662 p->address.type = SOCK_STREAM;
663 else if (streq(lvalue, "ListenDatagram"))
664 p->address.type = SOCK_DGRAM;
665 else {
666 assert(streq(lvalue, "ListenSequentialPacket"));
667 p->address.type = SOCK_SEQPACKET;
668 }
669
670 if (socket_address_family(&p->address) != AF_UNIX && p->address.type == SOCK_SEQPACKET) {
671 log_syntax(unit, LOG_WARNING, filename, line, 0, "Address family not supported, ignoring: %s", rvalue);
672 return 0;
673 }
674
675 p->type = SOCKET_SOCKET;
676 }
677
678 p->fd = -EBADF;
679 p->auxiliary_fds = NULL;
680 p->n_auxiliary_fds = 0;
681 p->socket = s;
682
683 tail = LIST_FIND_TAIL(port, s->ports);
684 LIST_INSERT_AFTER(port, s->ports, tail, p);
685
686 p = NULL;
687
688 return 0;
689 }
690
691 int config_parse_exec_nice(
692 const char *unit,
693 const char *filename,
694 unsigned line,
695 const char *section,
696 unsigned section_line,
697 const char *lvalue,
698 int ltype,
699 const char *rvalue,
700 void *data,
701 void *userdata) {
702
703 ExecContext *c = ASSERT_PTR(data);
704 int priority, r;
705
706 assert(filename);
707 assert(lvalue);
708 assert(rvalue);
709
710 if (isempty(rvalue)) {
711 c->nice_set = false;
712 return 0;
713 }
714
715 r = parse_nice(rvalue, &priority);
716 if (r < 0) {
717 if (r == -ERANGE)
718 log_syntax(unit, LOG_WARNING, filename, line, r, "Nice priority out of range, ignoring: %s", rvalue);
719 else
720 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse nice priority '%s', ignoring: %m", rvalue);
721 return 0;
722 }
723
724 c->nice = priority;
725 c->nice_set = true;
726
727 return 0;
728 }
729
730 int config_parse_exec_oom_score_adjust(
731 const char* unit,
732 const char *filename,
733 unsigned line,
734 const char *section,
735 unsigned section_line,
736 const char *lvalue,
737 int ltype,
738 const char *rvalue,
739 void *data,
740 void *userdata) {
741
742 ExecContext *c = ASSERT_PTR(data);
743 int oa, r;
744
745 assert(filename);
746 assert(lvalue);
747 assert(rvalue);
748
749 if (isempty(rvalue)) {
750 c->oom_score_adjust_set = false;
751 return 0;
752 }
753
754 r = parse_oom_score_adjust(rvalue, &oa);
755 if (r < 0) {
756 if (r == -ERANGE)
757 log_syntax(unit, LOG_WARNING, filename, line, r, "OOM score adjust value out of range, ignoring: %s", rvalue);
758 else
759 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse the OOM score adjust value '%s', ignoring: %m", rvalue);
760 return 0;
761 }
762
763 c->oom_score_adjust = oa;
764 c->oom_score_adjust_set = true;
765
766 return 0;
767 }
768
769 int config_parse_exec_coredump_filter(
770 const char* unit,
771 const char *filename,
772 unsigned line,
773 const char *section,
774 unsigned section_line,
775 const char *lvalue,
776 int ltype,
777 const char *rvalue,
778 void *data,
779 void *userdata) {
780
781 ExecContext *c = ASSERT_PTR(data);
782 int r;
783
784 assert(filename);
785 assert(lvalue);
786 assert(rvalue);
787
788 if (isempty(rvalue)) {
789 c->coredump_filter = 0;
790 c->coredump_filter_set = false;
791 return 0;
792 }
793
794 uint64_t f;
795 r = coredump_filter_mask_from_string(rvalue, &f);
796 if (r < 0) {
797 log_syntax(unit, LOG_WARNING, filename, line, r,
798 "Failed to parse the CoredumpFilter=%s, ignoring: %m", rvalue);
799 return 0;
800 }
801
802 c->coredump_filter |= f;
803 c->coredump_filter_set = true;
804 return 0;
805 }
806
807 int config_parse_kill_mode(
808 const char* unit,
809 const char *filename,
810 unsigned line,
811 const char *section,
812 unsigned section_line,
813 const char *lvalue,
814 int ltype,
815 const char *rvalue,
816 void *data,
817 void *userdata) {
818
819 KillMode *k = data, m;
820
821 assert(filename);
822 assert(lvalue);
823 assert(rvalue);
824 assert(data);
825
826 if (isempty(rvalue)) {
827 *k = KILL_CONTROL_GROUP;
828 return 0;
829 }
830
831 m = kill_mode_from_string(rvalue);
832 if (m < 0) {
833 log_syntax(unit, LOG_WARNING, filename, line, m,
834 "Failed to parse kill mode specification, ignoring: %s", rvalue);
835 return 0;
836 }
837
838 if (m == KILL_NONE)
839 log_syntax(unit, LOG_WARNING, filename, line, 0,
840 "Unit uses KillMode=none. "
841 "This is unsafe, as it disables systemd's process lifecycle management for the service. "
842 "Please update the service to use a safer KillMode=, such as 'mixed' or 'control-group'. "
843 "Support for KillMode=none is deprecated and will eventually be removed.");
844
845 *k = m;
846 return 0;
847 }
848
849 int config_parse_exec(
850 const char *unit,
851 const char *filename,
852 unsigned line,
853 const char *section,
854 unsigned section_line,
855 const char *lvalue,
856 int ltype,
857 const char *rvalue,
858 void *data,
859 void *userdata) {
860
861 ExecCommand **e = ASSERT_PTR(data);
862 const Unit *u = userdata;
863 const char *p;
864 bool semicolon;
865 int r;
866
867 assert(filename);
868 assert(lvalue);
869 assert(rvalue);
870
871 e += ltype;
872
873 if (isempty(rvalue)) {
874 /* An empty assignment resets the list */
875 *e = exec_command_free_list(*e);
876 return 0;
877 }
878
879 p = rvalue;
880 do {
881 _cleanup_free_ char *path = NULL, *firstword = NULL;
882 ExecCommandFlags flags = 0;
883 bool ignore = false, separate_argv0 = false;
884 _cleanup_free_ ExecCommand *nce = NULL;
885 _cleanup_strv_free_ char **n = NULL;
886 size_t nlen = 0;
887 const char *f;
888
889 semicolon = false;
890
891 r = extract_first_word_and_warn(&p, &firstword, NULL, EXTRACT_UNQUOTE|EXTRACT_CUNESCAPE, unit, filename, line, rvalue);
892 if (r <= 0)
893 return 0;
894
895 /* A lone ";" is a separator. Let's make sure we don't treat it as an executable name. */
896 if (streq(firstword, ";")) {
897 semicolon = true;
898 continue;
899 }
900
901 f = firstword;
902 for (;;) {
903 /* We accept an absolute path as first argument. If it's prefixed with - and the path doesn't
904 * exist, we ignore it instead of erroring out; if it's prefixed with @, we allow overriding of
905 * argv[0]; if it's prefixed with :, we will not do environment variable substitution;
906 * if it's prefixed with +, it will be run with full privileges and no sandboxing; if
907 * it's prefixed with '!' we apply sandboxing, but do not change user/group credentials; if
908 * it's prefixed with '!!', then we apply user/group credentials if the kernel supports ambient
909 * capabilities -- if it doesn't we don't apply the credentials themselves, but do apply most
910 * other sandboxing, with some special exceptions for changing UID.
911 *
912 * The idea is that '!!' may be used to write services that can take benefit of systemd's
913 * UID/GID dropping if the kernel supports ambient creds, but provide an automatic fallback to
914 * privilege dropping within the daemon if the kernel does not offer that. */
915
916 if (*f == '-' && !(flags & EXEC_COMMAND_IGNORE_FAILURE)) {
917 flags |= EXEC_COMMAND_IGNORE_FAILURE;
918 ignore = true;
919 } else if (*f == '@' && !separate_argv0)
920 separate_argv0 = true;
921 else if (*f == ':' && !(flags & EXEC_COMMAND_NO_ENV_EXPAND))
922 flags |= EXEC_COMMAND_NO_ENV_EXPAND;
923 else if (*f == '+' && !(flags & (EXEC_COMMAND_FULLY_PRIVILEGED|EXEC_COMMAND_NO_SETUID|EXEC_COMMAND_AMBIENT_MAGIC)))
924 flags |= EXEC_COMMAND_FULLY_PRIVILEGED;
925 else if (*f == '!' && !(flags & (EXEC_COMMAND_FULLY_PRIVILEGED|EXEC_COMMAND_NO_SETUID|EXEC_COMMAND_AMBIENT_MAGIC)))
926 flags |= EXEC_COMMAND_NO_SETUID;
927 else if (*f == '!' && !(flags & (EXEC_COMMAND_FULLY_PRIVILEGED|EXEC_COMMAND_AMBIENT_MAGIC))) {
928 flags &= ~EXEC_COMMAND_NO_SETUID;
929 flags |= EXEC_COMMAND_AMBIENT_MAGIC;
930 } else
931 break;
932 f++;
933 }
934
935 r = unit_path_printf(u, f, &path);
936 if (r < 0) {
937 log_syntax(unit, ignore ? LOG_WARNING : LOG_ERR, filename, line, r,
938 "Failed to resolve unit specifiers in '%s'%s: %m",
939 f, ignore ? ", ignoring" : "");
940 return ignore ? 0 : -ENOEXEC;
941 }
942
943 if (isempty(path)) {
944 /* First word is either "-" or "@" with no command. */
945 log_syntax(unit, ignore ? LOG_WARNING : LOG_ERR, filename, line, 0,
946 "Empty path in command line%s: '%s'",
947 ignore ? ", ignoring" : "", rvalue);
948 return ignore ? 0 : -ENOEXEC;
949 }
950 if (!string_is_safe(path)) {
951 log_syntax(unit, ignore ? LOG_WARNING : LOG_ERR, filename, line, 0,
952 "Executable name contains special characters%s: %s",
953 ignore ? ", ignoring" : "", path);
954 return ignore ? 0 : -ENOEXEC;
955 }
956 if (endswith(path, "/")) {
957 log_syntax(unit, ignore ? LOG_WARNING : LOG_ERR, filename, line, 0,
958 "Executable path specifies a directory%s: %s",
959 ignore ? ", ignoring" : "", path);
960 return ignore ? 0 : -ENOEXEC;
961 }
962
963 if (!(path_is_absolute(path) ? path_is_valid(path) : filename_is_valid(path))) {
964 log_syntax(unit, ignore ? LOG_WARNING : LOG_ERR, filename, line, 0,
965 "Neither a valid executable name nor an absolute path%s: %s",
966 ignore ? ", ignoring" : "", path);
967 return ignore ? 0 : -ENOEXEC;
968 }
969
970 if (!separate_argv0) {
971 char *w = NULL;
972
973 if (!GREEDY_REALLOC0(n, nlen + 2))
974 return log_oom();
975
976 w = strdup(path);
977 if (!w)
978 return log_oom();
979 n[nlen++] = w;
980 n[nlen] = NULL;
981 }
982
983 path_simplify(path);
984
985 while (!isempty(p)) {
986 _cleanup_free_ char *word = NULL, *resolved = NULL;
987
988 /* Check explicitly for an unquoted semicolon as
989 * command separator token. */
990 if (p[0] == ';' && (!p[1] || strchr(WHITESPACE, p[1]))) {
991 p++;
992 p += strspn(p, WHITESPACE);
993 semicolon = true;
994 break;
995 }
996
997 /* Check for \; explicitly, to not confuse it with \\; or "\;" or "\\;" etc.
998 * extract_first_word() would return the same for all of those. */
999 if (p[0] == '\\' && p[1] == ';' && (!p[2] || strchr(WHITESPACE, p[2]))) {
1000 char *w;
1001
1002 p += 2;
1003 p += strspn(p, WHITESPACE);
1004
1005 if (!GREEDY_REALLOC0(n, nlen + 2))
1006 return log_oom();
1007
1008 w = strdup(";");
1009 if (!w)
1010 return log_oom();
1011 n[nlen++] = w;
1012 n[nlen] = NULL;
1013 continue;
1014 }
1015
1016 r = extract_first_word_and_warn(&p, &word, NULL, EXTRACT_UNQUOTE|EXTRACT_CUNESCAPE, unit, filename, line, rvalue);
1017 if (r == 0)
1018 break;
1019 if (r < 0)
1020 return ignore ? 0 : -ENOEXEC;
1021
1022 r = unit_full_printf(u, word, &resolved);
1023 if (r < 0) {
1024 log_syntax(unit, ignore ? LOG_WARNING : LOG_ERR, filename, line, r,
1025 "Failed to resolve unit specifiers in %s%s: %m",
1026 word, ignore ? ", ignoring" : "");
1027 return ignore ? 0 : -ENOEXEC;
1028 }
1029
1030 if (!GREEDY_REALLOC(n, nlen + 2))
1031 return log_oom();
1032
1033 n[nlen++] = TAKE_PTR(resolved);
1034 n[nlen] = NULL;
1035 }
1036
1037 if (!n || !n[0]) {
1038 log_syntax(unit, ignore ? LOG_WARNING : LOG_ERR, filename, line, 0,
1039 "Empty executable name or zeroeth argument%s: %s",
1040 ignore ? ", ignoring" : "", rvalue);
1041 return ignore ? 0 : -ENOEXEC;
1042 }
1043
1044 nce = new0(ExecCommand, 1);
1045 if (!nce)
1046 return log_oom();
1047
1048 nce->argv = TAKE_PTR(n);
1049 nce->path = TAKE_PTR(path);
1050 nce->flags = flags;
1051
1052 exec_command_append_list(e, nce);
1053
1054 /* Do not _cleanup_free_ these. */
1055 nce = NULL;
1056
1057 rvalue = p;
1058 } while (semicolon);
1059
1060 return 0;
1061 }
1062
1063 int config_parse_socket_bindtodevice(
1064 const char* unit,
1065 const char *filename,
1066 unsigned line,
1067 const char *section,
1068 unsigned section_line,
1069 const char *lvalue,
1070 int ltype,
1071 const char *rvalue,
1072 void *data,
1073 void *userdata) {
1074
1075 Socket *s = ASSERT_PTR(data);
1076
1077 assert(filename);
1078 assert(lvalue);
1079 assert(rvalue);
1080
1081 if (isempty(rvalue) || streq(rvalue, "*")) {
1082 s->bind_to_device = mfree(s->bind_to_device);
1083 return 0;
1084 }
1085
1086 if (!ifname_valid(rvalue)) {
1087 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid interface name, ignoring: %s", rvalue);
1088 return 0;
1089 }
1090
1091 return free_and_strdup_warn(&s->bind_to_device, rvalue);
1092 }
1093
1094 int config_parse_exec_input(
1095 const char *unit,
1096 const char *filename,
1097 unsigned line,
1098 const char *section,
1099 unsigned section_line,
1100 const char *lvalue,
1101 int ltype,
1102 const char *rvalue,
1103 void *data,
1104 void *userdata) {
1105
1106 ExecContext *c = ASSERT_PTR(data);
1107 const Unit *u = userdata;
1108 const char *n;
1109 ExecInput ei;
1110 int r;
1111
1112 assert(filename);
1113 assert(line);
1114 assert(rvalue);
1115
1116 n = startswith(rvalue, "fd:");
1117 if (n) {
1118 _cleanup_free_ char *resolved = NULL;
1119
1120 r = unit_fd_printf(u, n, &resolved);
1121 if (r < 0) {
1122 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", n);
1123 return 0;
1124 }
1125
1126 if (isempty(resolved))
1127 resolved = mfree(resolved);
1128 else if (!fdname_is_valid(resolved)) {
1129 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid file descriptor name, ignoring: %s", resolved);
1130 return 0;
1131 }
1132
1133 free_and_replace(c->stdio_fdname[STDIN_FILENO], resolved);
1134
1135 ei = EXEC_INPUT_NAMED_FD;
1136
1137 } else if ((n = startswith(rvalue, "file:"))) {
1138 _cleanup_free_ char *resolved = NULL;
1139
1140 r = unit_path_printf(u, n, &resolved);
1141 if (r < 0) {
1142 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", n);
1143 return 0;
1144 }
1145
1146 r = path_simplify_and_warn(resolved, PATH_CHECK_ABSOLUTE | PATH_CHECK_FATAL, unit, filename, line, lvalue);
1147 if (r < 0)
1148 return 0;
1149
1150 free_and_replace(c->stdio_file[STDIN_FILENO], resolved);
1151
1152 ei = EXEC_INPUT_FILE;
1153
1154 } else {
1155 ei = exec_input_from_string(rvalue);
1156 if (ei < 0) {
1157 log_syntax(unit, LOG_WARNING, filename, line, ei, "Failed to parse input specifier, ignoring: %s", rvalue);
1158 return 0;
1159 }
1160 }
1161
1162 c->std_input = ei;
1163 return 0;
1164 }
1165
1166 int config_parse_exec_input_text(
1167 const char *unit,
1168 const char *filename,
1169 unsigned line,
1170 const char *section,
1171 unsigned section_line,
1172 const char *lvalue,
1173 int ltype,
1174 const char *rvalue,
1175 void *data,
1176 void *userdata) {
1177
1178 _cleanup_free_ char *unescaped = NULL, *resolved = NULL;
1179 ExecContext *c = ASSERT_PTR(data);
1180 const Unit *u = userdata;
1181 int r;
1182
1183 assert(filename);
1184 assert(line);
1185 assert(rvalue);
1186
1187 if (isempty(rvalue)) {
1188 /* Reset if the empty string is assigned */
1189 c->stdin_data = mfree(c->stdin_data);
1190 c->stdin_data_size = 0;
1191 return 0;
1192 }
1193
1194 ssize_t l = cunescape(rvalue, 0, &unescaped);
1195 if (l < 0) {
1196 log_syntax(unit, LOG_WARNING, filename, line, l,
1197 "Failed to decode C escaped text '%s', ignoring: %m", rvalue);
1198 return 0;
1199 }
1200
1201 r = unit_full_printf_full(u, unescaped, EXEC_STDIN_DATA_MAX, &resolved);
1202 if (r < 0) {
1203 log_syntax(unit, LOG_WARNING, filename, line, r,
1204 "Failed to resolve unit specifiers in '%s', ignoring: %m", unescaped);
1205 return 0;
1206 }
1207
1208 size_t sz = strlen(resolved);
1209 if (c->stdin_data_size + sz + 1 < c->stdin_data_size || /* check for overflow */
1210 c->stdin_data_size + sz + 1 > EXEC_STDIN_DATA_MAX) {
1211 log_syntax(unit, LOG_WARNING, filename, line, 0,
1212 "Standard input data too large (%zu), maximum of %zu permitted, ignoring.",
1213 c->stdin_data_size + sz, (size_t) EXEC_STDIN_DATA_MAX);
1214 return 0;
1215 }
1216
1217 void *p = realloc(c->stdin_data, c->stdin_data_size + sz + 1);
1218 if (!p)
1219 return log_oom();
1220
1221 *((char*) mempcpy((char*) p + c->stdin_data_size, resolved, sz)) = '\n';
1222
1223 c->stdin_data = p;
1224 c->stdin_data_size += sz + 1;
1225
1226 return 0;
1227 }
1228
1229 int config_parse_exec_input_data(
1230 const char *unit,
1231 const char *filename,
1232 unsigned line,
1233 const char *section,
1234 unsigned section_line,
1235 const char *lvalue,
1236 int ltype,
1237 const char *rvalue,
1238 void *data,
1239 void *userdata) {
1240
1241 _cleanup_free_ void *p = NULL;
1242 ExecContext *c = ASSERT_PTR(data);
1243 size_t sz;
1244 void *q;
1245 int r;
1246
1247 assert(filename);
1248 assert(line);
1249 assert(rvalue);
1250
1251 if (isempty(rvalue)) {
1252 /* Reset if the empty string is assigned */
1253 c->stdin_data = mfree(c->stdin_data);
1254 c->stdin_data_size = 0;
1255 return 0;
1256 }
1257
1258 r = unbase64mem(rvalue, &p, &sz);
1259 if (r < 0) {
1260 log_syntax(unit, LOG_WARNING, filename, line, r,
1261 "Failed to decode base64 data, ignoring: %s", rvalue);
1262 return 0;
1263 }
1264
1265 assert(sz > 0);
1266
1267 if (c->stdin_data_size + sz < c->stdin_data_size || /* check for overflow */
1268 c->stdin_data_size + sz > EXEC_STDIN_DATA_MAX) {
1269 log_syntax(unit, LOG_WARNING, filename, line, 0,
1270 "Standard input data too large (%zu), maximum of %zu permitted, ignoring.",
1271 c->stdin_data_size + sz, (size_t) EXEC_STDIN_DATA_MAX);
1272 return 0;
1273 }
1274
1275 q = realloc(c->stdin_data, c->stdin_data_size + sz);
1276 if (!q)
1277 return log_oom();
1278
1279 memcpy((uint8_t*) q + c->stdin_data_size, p, sz);
1280
1281 c->stdin_data = q;
1282 c->stdin_data_size += sz;
1283
1284 return 0;
1285 }
1286
1287 int config_parse_exec_output(
1288 const char *unit,
1289 const char *filename,
1290 unsigned line,
1291 const char *section,
1292 unsigned section_line,
1293 const char *lvalue,
1294 int ltype,
1295 const char *rvalue,
1296 void *data,
1297 void *userdata) {
1298
1299 _cleanup_free_ char *resolved = NULL;
1300 const char *n;
1301 ExecContext *c = ASSERT_PTR(data);
1302 const Unit *u = userdata;
1303 bool obsolete = false;
1304 ExecOutput eo;
1305 int r;
1306
1307 assert(filename);
1308 assert(line);
1309 assert(lvalue);
1310 assert(rvalue);
1311
1312 n = startswith(rvalue, "fd:");
1313 if (n) {
1314 r = unit_fd_printf(u, n, &resolved);
1315 if (r < 0) {
1316 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s: %m", n);
1317 return 0;
1318 }
1319
1320 if (isempty(resolved))
1321 resolved = mfree(resolved);
1322 else if (!fdname_is_valid(resolved)) {
1323 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid file descriptor name, ignoring: %s", resolved);
1324 return 0;
1325 }
1326
1327 eo = EXEC_OUTPUT_NAMED_FD;
1328
1329 } else if (streq(rvalue, "syslog")) {
1330 eo = EXEC_OUTPUT_JOURNAL;
1331 obsolete = true;
1332
1333 } else if (streq(rvalue, "syslog+console")) {
1334 eo = EXEC_OUTPUT_JOURNAL_AND_CONSOLE;
1335 obsolete = true;
1336
1337 } else if ((n = startswith(rvalue, "file:"))) {
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;
1350
1351 } else if ((n = startswith(rvalue, "append:"))) {
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_APPEND;
1364
1365 } else if ((n = startswith(rvalue, "truncate:"))) {
1366
1367 r = unit_path_printf(u, n, &resolved);
1368 if (r < 0) {
1369 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", n);
1370 return 0;
1371 }
1372
1373 r = path_simplify_and_warn(resolved, PATH_CHECK_ABSOLUTE | PATH_CHECK_FATAL, unit, filename, line, lvalue);
1374 if (r < 0)
1375 return 0;
1376
1377 eo = EXEC_OUTPUT_FILE_TRUNCATE;
1378 } else {
1379 eo = exec_output_from_string(rvalue);
1380 if (eo < 0) {
1381 log_syntax(unit, LOG_WARNING, filename, line, eo, "Failed to parse output specifier, ignoring: %s", rvalue);
1382 return 0;
1383 }
1384 }
1385
1386 if (obsolete)
1387 log_syntax(unit, LOG_NOTICE, filename, line, 0,
1388 "Standard output type %s is obsolete, automatically updating to %s. Please update your unit file, and consider removing the setting altogether.",
1389 rvalue, exec_output_to_string(eo));
1390
1391 if (streq(lvalue, "StandardOutput")) {
1392 if (eo == EXEC_OUTPUT_NAMED_FD)
1393 free_and_replace(c->stdio_fdname[STDOUT_FILENO], resolved);
1394 else
1395 free_and_replace(c->stdio_file[STDOUT_FILENO], resolved);
1396
1397 c->std_output = eo;
1398
1399 } else {
1400 assert(streq(lvalue, "StandardError"));
1401
1402 if (eo == EXEC_OUTPUT_NAMED_FD)
1403 free_and_replace(c->stdio_fdname[STDERR_FILENO], resolved);
1404 else
1405 free_and_replace(c->stdio_file[STDERR_FILENO], resolved);
1406
1407 c->std_error = eo;
1408 }
1409
1410 return 0;
1411 }
1412
1413 int config_parse_exec_io_class(const char *unit,
1414 const char *filename,
1415 unsigned line,
1416 const char *section,
1417 unsigned section_line,
1418 const char *lvalue,
1419 int ltype,
1420 const char *rvalue,
1421 void *data,
1422 void *userdata) {
1423
1424 ExecContext *c = ASSERT_PTR(data);
1425 int x;
1426
1427 assert(filename);
1428 assert(lvalue);
1429 assert(rvalue);
1430
1431 if (isempty(rvalue)) {
1432 c->ioprio_set = false;
1433 c->ioprio = IOPRIO_DEFAULT_CLASS_AND_PRIO;
1434 return 0;
1435 }
1436
1437 x = ioprio_class_from_string(rvalue);
1438 if (x < 0) {
1439 log_syntax(unit, LOG_WARNING, filename, line, x, "Failed to parse IO scheduling class, ignoring: %s", rvalue);
1440 return 0;
1441 }
1442
1443 c->ioprio = ioprio_normalize(ioprio_prio_value(x, ioprio_prio_data(c->ioprio)));
1444 c->ioprio_set = true;
1445
1446 return 0;
1447 }
1448
1449 int config_parse_exec_io_priority(const char *unit,
1450 const char *filename,
1451 unsigned line,
1452 const char *section,
1453 unsigned section_line,
1454 const char *lvalue,
1455 int ltype,
1456 const char *rvalue,
1457 void *data,
1458 void *userdata) {
1459
1460 ExecContext *c = ASSERT_PTR(data);
1461 int i, r;
1462
1463 assert(filename);
1464 assert(lvalue);
1465 assert(rvalue);
1466
1467 if (isempty(rvalue)) {
1468 c->ioprio_set = false;
1469 c->ioprio = IOPRIO_DEFAULT_CLASS_AND_PRIO;
1470 return 0;
1471 }
1472
1473 r = ioprio_parse_priority(rvalue, &i);
1474 if (r < 0) {
1475 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse IO priority, ignoring: %s", rvalue);
1476 return 0;
1477 }
1478
1479 c->ioprio = ioprio_normalize(ioprio_prio_value(ioprio_prio_class(c->ioprio), i));
1480 c->ioprio_set = true;
1481
1482 return 0;
1483 }
1484
1485 int config_parse_exec_cpu_sched_policy(const char *unit,
1486 const char *filename,
1487 unsigned line,
1488 const char *section,
1489 unsigned section_line,
1490 const char *lvalue,
1491 int ltype,
1492 const char *rvalue,
1493 void *data,
1494 void *userdata) {
1495
1496 ExecContext *c = ASSERT_PTR(data);
1497 int x;
1498
1499 assert(filename);
1500 assert(lvalue);
1501 assert(rvalue);
1502
1503 if (isempty(rvalue)) {
1504 c->cpu_sched_set = false;
1505 c->cpu_sched_policy = SCHED_OTHER;
1506 c->cpu_sched_priority = 0;
1507 return 0;
1508 }
1509
1510 x = sched_policy_from_string(rvalue);
1511 if (x < 0) {
1512 log_syntax(unit, LOG_WARNING, filename, line, x, "Failed to parse CPU scheduling policy, ignoring: %s", rvalue);
1513 return 0;
1514 }
1515
1516 c->cpu_sched_policy = x;
1517 /* Moving to or from real-time policy? We need to adjust the priority */
1518 c->cpu_sched_priority = CLAMP(c->cpu_sched_priority, sched_get_priority_min(x), sched_get_priority_max(x));
1519 c->cpu_sched_set = true;
1520
1521 return 0;
1522 }
1523
1524 int config_parse_exec_mount_apivfs(const char *unit,
1525 const char *filename,
1526 unsigned line,
1527 const char *section,
1528 unsigned section_line,
1529 const char *lvalue,
1530 int ltype,
1531 const char *rvalue,
1532 void *data,
1533 void *userdata) {
1534
1535 ExecContext *c = ASSERT_PTR(data);
1536 int k;
1537
1538 assert(filename);
1539 assert(lvalue);
1540 assert(rvalue);
1541
1542 if (isempty(rvalue)) {
1543 c->mount_apivfs_set = false;
1544 c->mount_apivfs = false;
1545 return 0;
1546 }
1547
1548 k = parse_boolean(rvalue);
1549 if (k < 0) {
1550 log_syntax(unit, LOG_WARNING, filename, line, k,
1551 "Failed to parse boolean value, ignoring: %s",
1552 rvalue);
1553 return 0;
1554 }
1555
1556 c->mount_apivfs_set = true;
1557 c->mount_apivfs = k;
1558 return 0;
1559 }
1560
1561 int config_parse_numa_mask(const char *unit,
1562 const char *filename,
1563 unsigned line,
1564 const char *section,
1565 unsigned section_line,
1566 const char *lvalue,
1567 int ltype,
1568 const char *rvalue,
1569 void *data,
1570 void *userdata) {
1571 int r;
1572 NUMAPolicy *p = ASSERT_PTR(data);
1573
1574 assert(filename);
1575 assert(lvalue);
1576 assert(rvalue);
1577
1578 if (streq(rvalue, "all")) {
1579 r = numa_mask_add_all(&p->nodes);
1580 if (r < 0)
1581 log_syntax(unit, LOG_WARNING, filename, line, r,
1582 "Failed to create NUMA mask representing \"all\" NUMA nodes, ignoring: %m");
1583 } else {
1584 r = parse_cpu_set_extend(rvalue, &p->nodes, true, unit, filename, line, lvalue);
1585 if (r < 0)
1586 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse NUMA node mask, ignoring: %s", rvalue);
1587 }
1588
1589 return 0;
1590 }
1591
1592 int config_parse_exec_cpu_sched_prio(const char *unit,
1593 const char *filename,
1594 unsigned line,
1595 const char *section,
1596 unsigned section_line,
1597 const char *lvalue,
1598 int ltype,
1599 const char *rvalue,
1600 void *data,
1601 void *userdata) {
1602
1603 ExecContext *c = ASSERT_PTR(data);
1604 int i, r;
1605
1606 assert(filename);
1607 assert(lvalue);
1608 assert(rvalue);
1609
1610 r = safe_atoi(rvalue, &i);
1611 if (r < 0) {
1612 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse CPU scheduling priority, ignoring: %s", rvalue);
1613 return 0;
1614 }
1615
1616 /* On Linux RR/FIFO range from 1 to 99 and OTHER/BATCH may only be 0. Policy might be set later so
1617 * we do not check the precise range, but only the generic outer bounds. */
1618 if (i < 0 || i > 99) {
1619 log_syntax(unit, LOG_WARNING, filename, line, 0, "CPU scheduling priority is out of range, ignoring: %s", rvalue);
1620 return 0;
1621 }
1622
1623 c->cpu_sched_priority = i;
1624 c->cpu_sched_set = true;
1625
1626 return 0;
1627 }
1628
1629 int config_parse_root_image_options(
1630 const char *unit,
1631 const char *filename,
1632 unsigned line,
1633 const char *section,
1634 unsigned section_line,
1635 const char *lvalue,
1636 int ltype,
1637 const char *rvalue,
1638 void *data,
1639 void *userdata) {
1640
1641 _cleanup_(mount_options_free_allp) MountOptions *options = NULL;
1642 _cleanup_strv_free_ char **l = NULL;
1643 ExecContext *c = ASSERT_PTR(data);
1644 const Unit *u = userdata;
1645 int r;
1646
1647 assert(filename);
1648 assert(lvalue);
1649 assert(rvalue);
1650
1651 if (isempty(rvalue)) {
1652 c->root_image_options = mount_options_free_all(c->root_image_options);
1653 return 0;
1654 }
1655
1656 r = strv_split_colon_pairs(&l, rvalue);
1657 if (r == -ENOMEM)
1658 return log_oom();
1659 if (r < 0) {
1660 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse %s, ignoring: %s", lvalue, rvalue);
1661 return 0;
1662 }
1663
1664 STRV_FOREACH_PAIR(first, second, l) {
1665 MountOptions *o = NULL;
1666 _cleanup_free_ char *mount_options_resolved = NULL;
1667 const char *mount_options = NULL, *partition = "root";
1668 PartitionDesignator partition_designator;
1669
1670 /* Format is either 'root:foo' or 'foo' (root is implied) */
1671 if (!isempty(*second)) {
1672 partition = *first;
1673 mount_options = *second;
1674 } else
1675 mount_options = *first;
1676
1677 partition_designator = partition_designator_from_string(partition);
1678 if (partition_designator < 0) {
1679 log_syntax(unit, LOG_WARNING, filename, line, partition_designator,
1680 "Invalid partition name %s, ignoring", partition);
1681 continue;
1682 }
1683 r = unit_full_printf(u, mount_options, &mount_options_resolved);
1684 if (r < 0) {
1685 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", mount_options);
1686 continue;
1687 }
1688
1689 o = new(MountOptions, 1);
1690 if (!o)
1691 return log_oom();
1692 *o = (MountOptions) {
1693 .partition_designator = partition_designator,
1694 .options = TAKE_PTR(mount_options_resolved),
1695 };
1696 LIST_APPEND(mount_options, options, TAKE_PTR(o));
1697 }
1698
1699 if (options)
1700 LIST_JOIN(mount_options, c->root_image_options, options);
1701 else
1702 /* empty spaces/separators only */
1703 c->root_image_options = mount_options_free_all(c->root_image_options);
1704
1705 return 0;
1706 }
1707
1708 int config_parse_exec_root_hash(
1709 const char *unit,
1710 const char *filename,
1711 unsigned line,
1712 const char *section,
1713 unsigned section_line,
1714 const char *lvalue,
1715 int ltype,
1716 const char *rvalue,
1717 void *data,
1718 void *userdata) {
1719
1720 _cleanup_free_ void *roothash_decoded = NULL;
1721 ExecContext *c = ASSERT_PTR(data);
1722 size_t roothash_decoded_size = 0;
1723 int r;
1724
1725 assert(filename);
1726 assert(line);
1727 assert(rvalue);
1728
1729 if (isempty(rvalue)) {
1730 /* Reset if the empty string is assigned */
1731 c->root_hash_path = mfree(c->root_hash_path);
1732 c->root_hash = mfree(c->root_hash);
1733 c->root_hash_size = 0;
1734 return 0;
1735 }
1736
1737 if (path_is_absolute(rvalue)) {
1738 /* We have the path to a roothash to load and decode, eg: RootHash=/foo/bar.roothash */
1739 _cleanup_free_ char *p = NULL;
1740
1741 p = strdup(rvalue);
1742 if (!p)
1743 return -ENOMEM;
1744
1745 free_and_replace(c->root_hash_path, p);
1746 c->root_hash = mfree(c->root_hash);
1747 c->root_hash_size = 0;
1748 return 0;
1749 }
1750
1751 /* We have a roothash to decode, eg: RootHash=012345789abcdef */
1752 r = unhexmem(rvalue, &roothash_decoded, &roothash_decoded_size);
1753 if (r < 0) {
1754 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to decode RootHash=, ignoring: %s", rvalue);
1755 return 0;
1756 }
1757 if (roothash_decoded_size < sizeof(sd_id128_t)) {
1758 log_syntax(unit, LOG_WARNING, filename, line, 0, "RootHash= is too short, ignoring: %s", rvalue);
1759 return 0;
1760 }
1761
1762 free_and_replace(c->root_hash, roothash_decoded);
1763 c->root_hash_size = roothash_decoded_size;
1764 c->root_hash_path = mfree(c->root_hash_path);
1765
1766 return 0;
1767 }
1768
1769 int config_parse_exec_root_hash_sig(
1770 const char *unit,
1771 const char *filename,
1772 unsigned line,
1773 const char *section,
1774 unsigned section_line,
1775 const char *lvalue,
1776 int ltype,
1777 const char *rvalue,
1778 void *data,
1779 void *userdata) {
1780
1781 _cleanup_free_ void *roothash_sig_decoded = NULL;
1782 char *value;
1783 ExecContext *c = ASSERT_PTR(data);
1784 size_t roothash_sig_decoded_size = 0;
1785 int r;
1786
1787 assert(filename);
1788 assert(line);
1789 assert(rvalue);
1790
1791 if (isempty(rvalue)) {
1792 /* Reset if the empty string is assigned */
1793 c->root_hash_sig_path = mfree(c->root_hash_sig_path);
1794 c->root_hash_sig = mfree(c->root_hash_sig);
1795 c->root_hash_sig_size = 0;
1796 return 0;
1797 }
1798
1799 if (path_is_absolute(rvalue)) {
1800 /* We have the path to a roothash signature to load and decode, eg: RootHashSignature=/foo/bar.roothash.p7s */
1801 _cleanup_free_ char *p = NULL;
1802
1803 p = strdup(rvalue);
1804 if (!p)
1805 return log_oom();
1806
1807 free_and_replace(c->root_hash_sig_path, p);
1808 c->root_hash_sig = mfree(c->root_hash_sig);
1809 c->root_hash_sig_size = 0;
1810 return 0;
1811 }
1812
1813 if (!(value = startswith(rvalue, "base64:"))) {
1814 log_syntax(unit, LOG_WARNING, filename, line, 0,
1815 "Failed to decode RootHashSignature=, not a path but doesn't start with 'base64:', ignoring: %s", rvalue);
1816 return 0;
1817 }
1818
1819 /* We have a roothash signature to decode, eg: RootHashSignature=base64:012345789abcdef */
1820 r = unbase64mem(value, &roothash_sig_decoded, &roothash_sig_decoded_size);
1821 if (r < 0) {
1822 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to decode RootHashSignature=, ignoring: %s", rvalue);
1823 return 0;
1824 }
1825
1826 free_and_replace(c->root_hash_sig, roothash_sig_decoded);
1827 c->root_hash_sig_size = roothash_sig_decoded_size;
1828 c->root_hash_sig_path = mfree(c->root_hash_sig_path);
1829
1830 return 0;
1831 }
1832
1833 int config_parse_exec_cpu_affinity(
1834 const char *unit,
1835 const char *filename,
1836 unsigned line,
1837 const char *section,
1838 unsigned section_line,
1839 const char *lvalue,
1840 int ltype,
1841 const char *rvalue,
1842 void *data,
1843 void *userdata) {
1844
1845 ExecContext *c = ASSERT_PTR(data);
1846 const Unit *u = userdata;
1847 _cleanup_free_ char *k = NULL;
1848 int r;
1849
1850 assert(filename);
1851 assert(lvalue);
1852 assert(rvalue);
1853
1854 if (streq(rvalue, "numa")) {
1855 c->cpu_affinity_from_numa = true;
1856 cpu_set_reset(&c->cpu_set);
1857
1858 return 0;
1859 }
1860
1861 r = unit_full_printf(u, rvalue, &k);
1862 if (r < 0) {
1863 log_syntax(unit, LOG_WARNING, filename, line, r,
1864 "Failed to resolve unit specifiers in '%s', ignoring: %m",
1865 rvalue);
1866 return 0;
1867 }
1868
1869 r = parse_cpu_set_extend(k, &c->cpu_set, true, unit, filename, line, lvalue);
1870 if (r >= 0)
1871 c->cpu_affinity_from_numa = false;
1872
1873 return 0;
1874 }
1875
1876 int config_parse_capability_set(
1877 const char *unit,
1878 const char *filename,
1879 unsigned line,
1880 const char *section,
1881 unsigned section_line,
1882 const char *lvalue,
1883 int ltype,
1884 const char *rvalue,
1885 void *data,
1886 void *userdata) {
1887
1888 uint64_t *capability_set = ASSERT_PTR(data);
1889 uint64_t sum = 0, initial, def;
1890 bool invert = false;
1891 int r;
1892
1893 assert(filename);
1894 assert(lvalue);
1895 assert(rvalue);
1896
1897 if (rvalue[0] == '~') {
1898 invert = true;
1899 rvalue++;
1900 }
1901
1902 if (streq(lvalue, "CapabilityBoundingSet")) {
1903 initial = CAP_MASK_ALL; /* initialized to all bits on */
1904 def = CAP_MASK_UNSET; /* not set */
1905 } else
1906 def = initial = 0; /* All bits off */
1907
1908 r = capability_set_from_string(rvalue, &sum);
1909 if (r < 0) {
1910 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse %s= specifier '%s', ignoring: %m", lvalue, rvalue);
1911 return 0;
1912 }
1913
1914 if (sum == 0 || *capability_set == def)
1915 /* "", "~" or uninitialized data -> replace */
1916 *capability_set = invert ? ~sum : sum;
1917 else {
1918 /* previous data -> merge */
1919 if (invert)
1920 *capability_set &= ~sum;
1921 else
1922 *capability_set |= sum;
1923 }
1924
1925 return 0;
1926 }
1927
1928 int config_parse_exec_selinux_context(
1929 const char *unit,
1930 const char *filename,
1931 unsigned line,
1932 const char *section,
1933 unsigned section_line,
1934 const char *lvalue,
1935 int ltype,
1936 const char *rvalue,
1937 void *data,
1938 void *userdata) {
1939
1940 ExecContext *c = ASSERT_PTR(data);
1941 const Unit *u = userdata;
1942 bool ignore;
1943 char *k;
1944 int r;
1945
1946 assert(filename);
1947 assert(lvalue);
1948 assert(rvalue);
1949
1950 if (isempty(rvalue)) {
1951 c->selinux_context = mfree(c->selinux_context);
1952 c->selinux_context_ignore = false;
1953 return 0;
1954 }
1955
1956 if (rvalue[0] == '-') {
1957 ignore = true;
1958 rvalue++;
1959 } else
1960 ignore = false;
1961
1962 r = unit_full_printf(u, rvalue, &k);
1963 if (r < 0) {
1964 log_syntax(unit, ignore ? LOG_WARNING : LOG_ERR, filename, line, r,
1965 "Failed to resolve unit specifiers in '%s'%s: %m",
1966 rvalue, ignore ? ", ignoring" : "");
1967 return ignore ? 0 : -ENOEXEC;
1968 }
1969
1970 free_and_replace(c->selinux_context, k);
1971 c->selinux_context_ignore = ignore;
1972
1973 return 0;
1974 }
1975
1976 int config_parse_exec_apparmor_profile(
1977 const char *unit,
1978 const char *filename,
1979 unsigned line,
1980 const char *section,
1981 unsigned section_line,
1982 const char *lvalue,
1983 int ltype,
1984 const char *rvalue,
1985 void *data,
1986 void *userdata) {
1987
1988 ExecContext *c = ASSERT_PTR(data);
1989 const Unit *u = userdata;
1990 bool ignore;
1991 char *k;
1992 int r;
1993
1994 assert(filename);
1995 assert(lvalue);
1996 assert(rvalue);
1997
1998 if (isempty(rvalue)) {
1999 c->apparmor_profile = mfree(c->apparmor_profile);
2000 c->apparmor_profile_ignore = false;
2001 return 0;
2002 }
2003
2004 if (rvalue[0] == '-') {
2005 ignore = true;
2006 rvalue++;
2007 } else
2008 ignore = false;
2009
2010 r = unit_full_printf(u, rvalue, &k);
2011 if (r < 0) {
2012 log_syntax(unit, ignore ? LOG_WARNING : LOG_ERR, filename, line, r,
2013 "Failed to resolve unit specifiers in '%s'%s: %m",
2014 rvalue, ignore ? ", ignoring" : "");
2015 return ignore ? 0 : -ENOEXEC;
2016 }
2017
2018 free_and_replace(c->apparmor_profile, k);
2019 c->apparmor_profile_ignore = ignore;
2020
2021 return 0;
2022 }
2023
2024 int config_parse_exec_smack_process_label(
2025 const char *unit,
2026 const char *filename,
2027 unsigned line,
2028 const char *section,
2029 unsigned section_line,
2030 const char *lvalue,
2031 int ltype,
2032 const char *rvalue,
2033 void *data,
2034 void *userdata) {
2035
2036 ExecContext *c = ASSERT_PTR(data);
2037 const Unit *u = userdata;
2038 bool ignore;
2039 char *k;
2040 int r;
2041
2042 assert(filename);
2043 assert(lvalue);
2044 assert(rvalue);
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 = ASSERT_PTR(data);
2088 usec_t usec = 0;
2089 TimerValue *v;
2090 int r;
2091
2092 assert(filename);
2093 assert(lvalue);
2094 assert(rvalue);
2095
2096 if (isempty(rvalue)) {
2097 /* Empty assignment resets list */
2098 timer_free_values(t);
2099 return 0;
2100 }
2101
2102 r = unit_full_printf(u, rvalue, &k);
2103 if (r < 0) {
2104 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue);
2105 return 0;
2106 }
2107
2108 if (ltype == TIMER_CALENDAR) {
2109 r = calendar_spec_from_string(k, &c);
2110 if (r < 0) {
2111 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse calendar specification, ignoring: %s", k);
2112 return 0;
2113 }
2114 } else {
2115 r = parse_sec(k, &usec);
2116 if (r < 0) {
2117 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse timer value, ignoring: %s", k);
2118 return 0;
2119 }
2120 }
2121
2122 v = new(TimerValue, 1);
2123 if (!v)
2124 return log_oom();
2125
2126 *v = (TimerValue) {
2127 .base = ltype,
2128 .value = usec,
2129 .calendar_spec = TAKE_PTR(c),
2130 };
2131
2132 LIST_PREPEND(value, t->values, v);
2133
2134 return 0;
2135 }
2136
2137 int config_parse_trigger_unit(
2138 const char *unit,
2139 const char *filename,
2140 unsigned line,
2141 const char *section,
2142 unsigned section_line,
2143 const char *lvalue,
2144 int ltype,
2145 const char *rvalue,
2146 void *data,
2147 void *userdata) {
2148
2149 _cleanup_free_ char *p = NULL;
2150 Unit *u = ASSERT_PTR(data);
2151 UnitType type;
2152 int r;
2153
2154 assert(filename);
2155 assert(lvalue);
2156 assert(rvalue);
2157
2158 if (UNIT_TRIGGER(u)) {
2159 log_syntax(unit, LOG_WARNING, filename, line, 0, "Multiple units to trigger specified, ignoring: %s", rvalue);
2160 return 0;
2161 }
2162
2163 r = unit_name_printf(u, rvalue, &p);
2164 if (r < 0) {
2165 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", rvalue);
2166 return 0;
2167 }
2168
2169 type = unit_name_to_type(p);
2170 if (type < 0) {
2171 log_syntax(unit, LOG_WARNING, filename, line, type, "Unit type not valid, ignoring: %s", rvalue);
2172 return 0;
2173 }
2174 if (unit_has_name(u, p)) {
2175 log_syntax(unit, LOG_WARNING, filename, line, 0, "Units cannot trigger themselves, ignoring: %s", rvalue);
2176 return 0;
2177 }
2178
2179 r = unit_add_two_dependencies_by_name(u, UNIT_BEFORE, UNIT_TRIGGERS, p, true, UNIT_DEPENDENCY_FILE);
2180 if (r < 0) {
2181 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to add trigger on %s, ignoring: %m", p);
2182 return 0;
2183 }
2184
2185 return 0;
2186 }
2187
2188 int config_parse_path_spec(const char *unit,
2189 const char *filename,
2190 unsigned line,
2191 const char *section,
2192 unsigned section_line,
2193 const char *lvalue,
2194 int ltype,
2195 const char *rvalue,
2196 void *data,
2197 void *userdata) {
2198
2199 Path *p = ASSERT_PTR(data);
2200 PathSpec *s;
2201 PathType b;
2202 _cleanup_free_ char *k = NULL;
2203 int r;
2204
2205 assert(filename);
2206 assert(lvalue);
2207 assert(rvalue);
2208
2209 if (isempty(rvalue)) {
2210 /* Empty assignment clears list */
2211 path_free_specs(p);
2212 return 0;
2213 }
2214
2215 b = path_type_from_string(lvalue);
2216 if (b < 0) {
2217 log_syntax(unit, LOG_WARNING, filename, line, b, "Failed to parse path type, ignoring: %s", lvalue);
2218 return 0;
2219 }
2220
2221 r = unit_path_printf(UNIT(p), rvalue, &k);
2222 if (r < 0) {
2223 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", rvalue);
2224 return 0;
2225 }
2226
2227 r = path_simplify_and_warn(k, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
2228 if (r < 0)
2229 return 0;
2230
2231 s = new0(PathSpec, 1);
2232 if (!s)
2233 return log_oom();
2234
2235 s->unit = UNIT(p);
2236 s->path = TAKE_PTR(k);
2237 s->type = b;
2238 s->inotify_fd = -EBADF;
2239
2240 LIST_PREPEND(spec, p->specs, s);
2241
2242 return 0;
2243 }
2244
2245 int config_parse_socket_service(
2246 const char *unit,
2247 const char *filename,
2248 unsigned line,
2249 const char *section,
2250 unsigned section_line,
2251 const char *lvalue,
2252 int ltype,
2253 const char *rvalue,
2254 void *data,
2255 void *userdata) {
2256
2257 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2258 _cleanup_free_ char *p = NULL;
2259 Socket *s = ASSERT_PTR(data);
2260 Unit *x;
2261 int r;
2262
2263 assert(filename);
2264 assert(lvalue);
2265 assert(rvalue);
2266
2267 r = unit_name_printf(UNIT(s), rvalue, &p);
2268 if (r < 0) {
2269 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", rvalue);
2270 return 0;
2271 }
2272
2273 if (!endswith(p, ".service")) {
2274 log_syntax(unit, LOG_WARNING, filename, line, 0, "Unit must be of type service, ignoring: %s", rvalue);
2275 return 0;
2276 }
2277
2278 r = manager_load_unit(UNIT(s)->manager, p, NULL, &error, &x);
2279 if (r < 0) {
2280 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to load unit %s, ignoring: %s", rvalue, bus_error_message(&error, r));
2281 return 0;
2282 }
2283
2284 unit_ref_set(&s->service, UNIT(s), x);
2285
2286 return 0;
2287 }
2288
2289 int config_parse_fdname(
2290 const char *unit,
2291 const char *filename,
2292 unsigned line,
2293 const char *section,
2294 unsigned section_line,
2295 const char *lvalue,
2296 int ltype,
2297 const char *rvalue,
2298 void *data,
2299 void *userdata) {
2300
2301 _cleanup_free_ char *p = NULL;
2302 Socket *s = ASSERT_PTR(data);
2303 int r;
2304
2305 assert(filename);
2306 assert(lvalue);
2307 assert(rvalue);
2308
2309 if (isempty(rvalue)) {
2310 s->fdname = mfree(s->fdname);
2311 return 0;
2312 }
2313
2314 r = unit_fd_printf(UNIT(s), rvalue, &p);
2315 if (r < 0) {
2316 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue);
2317 return 0;
2318 }
2319
2320 if (!fdname_is_valid(p)) {
2321 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid file descriptor name, ignoring: %s", p);
2322 return 0;
2323 }
2324
2325 return free_and_replace(s->fdname, p);
2326 }
2327
2328 int config_parse_service_sockets(
2329 const char *unit,
2330 const char *filename,
2331 unsigned line,
2332 const char *section,
2333 unsigned section_line,
2334 const char *lvalue,
2335 int ltype,
2336 const char *rvalue,
2337 void *data,
2338 void *userdata) {
2339
2340 Service *s = ASSERT_PTR(data);
2341 int r;
2342
2343 assert(filename);
2344 assert(lvalue);
2345 assert(rvalue);
2346
2347 for (const char *p = rvalue;;) {
2348 _cleanup_free_ char *word = NULL, *k = NULL;
2349
2350 r = extract_first_word(&p, &word, NULL, 0);
2351 if (r == -ENOMEM)
2352 return log_oom();
2353 if (r < 0) {
2354 log_syntax(unit, LOG_WARNING, filename, line, r, "Trailing garbage in sockets, ignoring: %s", rvalue);
2355 return 0;
2356 }
2357 if (r == 0)
2358 return 0;
2359
2360 r = unit_name_printf(UNIT(s), word, &k);
2361 if (r < 0) {
2362 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", word);
2363 continue;
2364 }
2365
2366 if (!endswith(k, ".socket")) {
2367 log_syntax(unit, LOG_WARNING, filename, line, 0, "Unit must be of type socket, ignoring: %s", k);
2368 continue;
2369 }
2370
2371 r = unit_add_two_dependencies_by_name(UNIT(s), UNIT_WANTS, UNIT_AFTER, k, true, UNIT_DEPENDENCY_FILE);
2372 if (r < 0)
2373 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to add dependency on %s, ignoring: %m", k);
2374
2375 r = unit_add_dependency_by_name(UNIT(s), UNIT_TRIGGERED_BY, k, true, UNIT_DEPENDENCY_FILE);
2376 if (r < 0)
2377 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to add dependency on %s, ignoring: %m", k);
2378 }
2379 }
2380
2381 int config_parse_bus_name(
2382 const char *unit,
2383 const char *filename,
2384 unsigned line,
2385 const char *section,
2386 unsigned section_line,
2387 const char *lvalue,
2388 int ltype,
2389 const char *rvalue,
2390 void *data,
2391 void *userdata) {
2392
2393 _cleanup_free_ char *k = NULL;
2394 const Unit *u = ASSERT_PTR(userdata);
2395 int r;
2396
2397 assert(filename);
2398 assert(lvalue);
2399 assert(rvalue);
2400
2401 r = unit_full_printf_full(u, rvalue, SD_BUS_MAXIMUM_NAME_LENGTH, &k);
2402 if (r < 0) {
2403 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", rvalue);
2404 return 0;
2405 }
2406
2407 if (!sd_bus_service_name_is_valid(k)) {
2408 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid bus name, ignoring: %s", k);
2409 return 0;
2410 }
2411
2412 return config_parse_string(unit, filename, line, section, section_line, lvalue, ltype, k, data, userdata);
2413 }
2414
2415 int config_parse_service_timeout(
2416 const char *unit,
2417 const char *filename,
2418 unsigned line,
2419 const char *section,
2420 unsigned section_line,
2421 const char *lvalue,
2422 int ltype,
2423 const char *rvalue,
2424 void *data,
2425 void *userdata) {
2426
2427 Service *s = ASSERT_PTR(userdata);
2428 usec_t usec;
2429 int r;
2430
2431 assert(filename);
2432 assert(lvalue);
2433 assert(rvalue);
2434
2435 /* This is called for two cases: TimeoutSec= and TimeoutStartSec=. */
2436
2437 /* Traditionally, these options accepted 0 to disable the timeouts. However, a timeout of 0 suggests it happens
2438 * immediately, hence fix this to become USEC_INFINITY instead. This is in-line with how we internally handle
2439 * all other timeouts. */
2440 r = parse_sec_fix_0(rvalue, &usec);
2441 if (r < 0) {
2442 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse %s= parameter, ignoring: %s", lvalue, rvalue);
2443 return 0;
2444 }
2445
2446 s->start_timeout_defined = true;
2447 s->timeout_start_usec = usec;
2448
2449 if (streq(lvalue, "TimeoutSec"))
2450 s->timeout_stop_usec = usec;
2451
2452 return 0;
2453 }
2454
2455 int config_parse_timeout_abort(
2456 const char *unit,
2457 const char *filename,
2458 unsigned line,
2459 const char *section,
2460 unsigned section_line,
2461 const char *lvalue,
2462 int ltype,
2463 const char *rvalue,
2464 void *data,
2465 void *userdata) {
2466
2467 usec_t *ret = ASSERT_PTR(data);
2468 int r;
2469
2470 assert(filename);
2471 assert(lvalue);
2472 assert(rvalue);
2473
2474 /* Note: apart from setting the arg, this returns an extra bit of information in the return value. */
2475
2476 if (isempty(rvalue)) {
2477 *ret = 0;
2478 return 0; /* "not set" */
2479 }
2480
2481 r = parse_sec(rvalue, ret);
2482 if (r < 0)
2483 return log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse %s= setting, ignoring: %s", lvalue, rvalue);
2484
2485 return 1; /* "set" */
2486 }
2487
2488 int config_parse_service_timeout_abort(
2489 const char *unit,
2490 const char *filename,
2491 unsigned line,
2492 const char *section,
2493 unsigned section_line,
2494 const char *lvalue,
2495 int ltype,
2496 const char *rvalue,
2497 void *data,
2498 void *userdata) {
2499
2500 Service *s = ASSERT_PTR(userdata);
2501 int r;
2502
2503 r = config_parse_timeout_abort(unit, filename, line, section, section_line, lvalue, ltype, rvalue,
2504 &s->timeout_abort_usec, s);
2505 if (r >= 0)
2506 s->timeout_abort_set = r;
2507 return 0;
2508 }
2509
2510 int config_parse_user_group_compat(
2511 const char *unit,
2512 const char *filename,
2513 unsigned line,
2514 const char *section,
2515 unsigned section_line,
2516 const char *lvalue,
2517 int ltype,
2518 const char *rvalue,
2519 void *data,
2520 void *userdata) {
2521
2522 _cleanup_free_ char *k = NULL;
2523 char **user = data;
2524 const Unit *u = ASSERT_PTR(userdata);
2525 int r;
2526
2527 assert(filename);
2528 assert(lvalue);
2529 assert(rvalue);
2530
2531 if (isempty(rvalue)) {
2532 *user = mfree(*user);
2533 return 0;
2534 }
2535
2536 r = unit_full_printf(u, rvalue, &k);
2537 if (r < 0) {
2538 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in %s: %m", rvalue);
2539 return -ENOEXEC;
2540 }
2541
2542 if (!valid_user_group_name(k, VALID_USER_ALLOW_NUMERIC|VALID_USER_RELAX|VALID_USER_WARN)) {
2543 log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid user/group name or numeric ID: %s", k);
2544 return -ENOEXEC;
2545 }
2546
2547 if (strstr(lvalue, "User") && streq(k, NOBODY_USER_NAME))
2548 log_struct(LOG_NOTICE,
2549 "MESSAGE=%s:%u: Special user %s configured, this is not safe!", filename, line, k,
2550 "UNIT=%s", unit,
2551 "MESSAGE_ID=" SD_MESSAGE_NOBODY_USER_UNSUITABLE_STR,
2552 "OFFENDING_USER=%s", k,
2553 "CONFIG_FILE=%s", filename,
2554 "CONFIG_LINE=%u", line);
2555
2556 return free_and_replace(*user, k);
2557 }
2558
2559 int config_parse_user_group_strv_compat(
2560 const char *unit,
2561 const char *filename,
2562 unsigned line,
2563 const char *section,
2564 unsigned section_line,
2565 const char *lvalue,
2566 int ltype,
2567 const char *rvalue,
2568 void *data,
2569 void *userdata) {
2570
2571 char ***users = data;
2572 const Unit *u = ASSERT_PTR(userdata);
2573 int r;
2574
2575 assert(filename);
2576 assert(lvalue);
2577 assert(rvalue);
2578
2579 if (isempty(rvalue)) {
2580 *users = strv_free(*users);
2581 return 0;
2582 }
2583
2584 for (const char *p = rvalue;;) {
2585 _cleanup_free_ char *word = NULL, *k = NULL;
2586
2587 r = extract_first_word(&p, &word, NULL, 0);
2588 if (r == -ENOMEM)
2589 return log_oom();
2590 if (r < 0) {
2591 log_syntax(unit, LOG_ERR, filename, line, r, "Invalid syntax: %s", rvalue);
2592 return -ENOEXEC;
2593 }
2594 if (r == 0)
2595 return 0;
2596
2597 r = unit_full_printf(u, word, &k);
2598 if (r < 0) {
2599 log_syntax(unit, LOG_ERR, filename, line, r, "Failed to resolve unit specifiers in %s: %m", word);
2600 return -ENOEXEC;
2601 }
2602
2603 if (!valid_user_group_name(k, VALID_USER_ALLOW_NUMERIC|VALID_USER_RELAX|VALID_USER_WARN)) {
2604 log_syntax(unit, LOG_ERR, filename, line, 0, "Invalid user/group name or numeric ID: %s", k);
2605 return -ENOEXEC;
2606 }
2607
2608 r = strv_push(users, k);
2609 if (r < 0)
2610 return log_oom();
2611
2612 k = NULL;
2613 }
2614 }
2615
2616 int config_parse_working_directory(
2617 const char *unit,
2618 const char *filename,
2619 unsigned line,
2620 const char *section,
2621 unsigned section_line,
2622 const char *lvalue,
2623 int ltype,
2624 const char *rvalue,
2625 void *data,
2626 void *userdata) {
2627
2628 ExecContext *c = ASSERT_PTR(data);
2629 const Unit *u = ASSERT_PTR(userdata);
2630 bool missing_ok;
2631 int r;
2632
2633 assert(filename);
2634 assert(lvalue);
2635 assert(rvalue);
2636
2637 if (isempty(rvalue)) {
2638 c->working_directory_home = false;
2639 c->working_directory = mfree(c->working_directory);
2640 return 0;
2641 }
2642
2643 if (rvalue[0] == '-') {
2644 missing_ok = true;
2645 rvalue++;
2646 } else
2647 missing_ok = false;
2648
2649 if (streq(rvalue, "~")) {
2650 c->working_directory_home = true;
2651 c->working_directory = mfree(c->working_directory);
2652 } else {
2653 _cleanup_free_ char *k = NULL;
2654
2655 r = unit_path_printf(u, rvalue, &k);
2656 if (r < 0) {
2657 log_syntax(unit, missing_ok ? LOG_WARNING : LOG_ERR, filename, line, r,
2658 "Failed to resolve unit specifiers in working directory path '%s'%s: %m",
2659 rvalue, missing_ok ? ", ignoring" : "");
2660 return missing_ok ? 0 : -ENOEXEC;
2661 }
2662
2663 r = path_simplify_and_warn(k, PATH_CHECK_ABSOLUTE | (missing_ok ? 0 : PATH_CHECK_FATAL), unit, filename, line, lvalue);
2664 if (r < 0)
2665 return missing_ok ? 0 : -ENOEXEC;
2666
2667 c->working_directory_home = false;
2668 free_and_replace(c->working_directory, k);
2669 }
2670
2671 c->working_directory_missing_ok = missing_ok;
2672 return 0;
2673 }
2674
2675 int config_parse_unit_env_file(const char *unit,
2676 const char *filename,
2677 unsigned line,
2678 const char *section,
2679 unsigned section_line,
2680 const char *lvalue,
2681 int ltype,
2682 const char *rvalue,
2683 void *data,
2684 void *userdata) {
2685
2686 char ***env = ASSERT_PTR(data);
2687 const Unit *u = userdata;
2688 _cleanup_free_ char *n = NULL;
2689 int r;
2690
2691 assert(filename);
2692 assert(lvalue);
2693 assert(rvalue);
2694
2695 if (isempty(rvalue)) {
2696 /* Empty assignment frees the list */
2697 *env = strv_free(*env);
2698 return 0;
2699 }
2700
2701 r = unit_path_printf(u, rvalue, &n);
2702 if (r < 0) {
2703 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue);
2704 return 0;
2705 }
2706
2707 r = path_simplify_and_warn(n[0] == '-' ? n + 1 : n, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
2708 if (r < 0)
2709 return 0;
2710
2711 r = strv_push(env, n);
2712 if (r < 0)
2713 return log_oom();
2714
2715 n = NULL;
2716
2717 return 0;
2718 }
2719
2720 int config_parse_environ(
2721 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 const Unit *u = userdata;
2733 char ***env = ASSERT_PTR(data);
2734 int r;
2735
2736 assert(filename);
2737 assert(lvalue);
2738 assert(rvalue);
2739
2740 if (isempty(rvalue)) {
2741 /* Empty assignment resets the list */
2742 *env = strv_free(*env);
2743 return 0;
2744 }
2745
2746 /* If 'u' is set, we operate on the regular unit specifier table. Otherwise we use a manager-specific
2747 * specifier table (in which case ltype must contain the runtime scope). */
2748 const Specifier *table = u ? NULL : (const Specifier[]) {
2749 COMMON_SYSTEM_SPECIFIERS,
2750 COMMON_TMP_SPECIFIERS,
2751 COMMON_CREDS_SPECIFIERS(ltype),
2752 { 'h', specifier_user_home, NULL },
2753 { 's', specifier_user_shell, NULL },
2754 };
2755
2756 for (const char *p = rvalue;; ) {
2757 _cleanup_free_ char *word = NULL, *resolved = NULL;
2758
2759 r = extract_first_word(&p, &word, NULL, EXTRACT_CUNESCAPE|EXTRACT_UNQUOTE);
2760 if (r == -ENOMEM)
2761 return log_oom();
2762 if (r < 0) {
2763 log_syntax(unit, LOG_WARNING, filename, line, r,
2764 "Invalid syntax, ignoring: %s", rvalue);
2765 return 0;
2766 }
2767 if (r == 0)
2768 return 0;
2769
2770 if (table)
2771 r = specifier_printf(word, sc_arg_max(), table, NULL, NULL, &resolved);
2772 else
2773 r = unit_env_printf(u, word, &resolved);
2774 if (r < 0) {
2775 log_syntax(unit, LOG_WARNING, filename, line, r,
2776 "Failed to resolve specifiers in %s, ignoring: %m", word);
2777 continue;
2778 }
2779
2780 if (!env_assignment_is_valid(resolved)) {
2781 log_syntax(unit, LOG_WARNING, filename, line, 0,
2782 "Invalid environment assignment, ignoring: %s", resolved);
2783 continue;
2784 }
2785
2786 r = strv_env_replace_consume(env, TAKE_PTR(resolved));
2787 if (r < 0)
2788 return log_error_errno(r, "Failed to update environment: %m");
2789 }
2790 }
2791
2792 int config_parse_pass_environ(
2793 const char *unit,
2794 const char *filename,
2795 unsigned line,
2796 const char *section,
2797 unsigned section_line,
2798 const char *lvalue,
2799 int ltype,
2800 const char *rvalue,
2801 void *data,
2802 void *userdata) {
2803
2804 _cleanup_strv_free_ char **n = NULL;
2805 const Unit *u = userdata;
2806 char*** passenv = ASSERT_PTR(data);
2807 size_t nlen = 0;
2808 int r;
2809
2810 assert(filename);
2811 assert(lvalue);
2812 assert(rvalue);
2813
2814 if (isempty(rvalue)) {
2815 /* Empty assignment resets the list */
2816 *passenv = strv_free(*passenv);
2817 return 0;
2818 }
2819
2820 for (const char *p = rvalue;;) {
2821 _cleanup_free_ char *word = NULL, *k = NULL;
2822
2823 r = extract_first_word(&p, &word, NULL, EXTRACT_UNQUOTE);
2824 if (r == -ENOMEM)
2825 return log_oom();
2826 if (r < 0) {
2827 log_syntax(unit, LOG_WARNING, filename, line, r,
2828 "Trailing garbage in %s, ignoring: %s", lvalue, rvalue);
2829 break;
2830 }
2831 if (r == 0)
2832 break;
2833
2834 if (u) {
2835 r = unit_env_printf(u, word, &k);
2836 if (r < 0) {
2837 log_syntax(unit, LOG_WARNING, filename, line, r,
2838 "Failed to resolve specifiers in %s, ignoring: %m", word);
2839 continue;
2840 }
2841 } else
2842 k = TAKE_PTR(word);
2843
2844 if (!env_name_is_valid(k)) {
2845 log_syntax(unit, LOG_WARNING, filename, line, 0,
2846 "Invalid environment name for %s, ignoring: %s", lvalue, k);
2847 continue;
2848 }
2849
2850 if (!GREEDY_REALLOC(n, nlen + 2))
2851 return log_oom();
2852
2853 n[nlen++] = TAKE_PTR(k);
2854 n[nlen] = NULL;
2855 }
2856
2857 if (n) {
2858 r = strv_extend_strv(passenv, n, true);
2859 if (r < 0)
2860 return log_oom();
2861 }
2862
2863 return 0;
2864 }
2865
2866 int config_parse_unset_environ(
2867 const char *unit,
2868 const char *filename,
2869 unsigned line,
2870 const char *section,
2871 unsigned section_line,
2872 const char *lvalue,
2873 int ltype,
2874 const char *rvalue,
2875 void *data,
2876 void *userdata) {
2877
2878 _cleanup_strv_free_ char **n = NULL;
2879 char*** unsetenv = ASSERT_PTR(data);
2880 const Unit *u = userdata;
2881 size_t nlen = 0;
2882 int r;
2883
2884 assert(filename);
2885 assert(lvalue);
2886 assert(rvalue);
2887
2888 if (isempty(rvalue)) {
2889 /* Empty assignment resets the list */
2890 *unsetenv = strv_free(*unsetenv);
2891 return 0;
2892 }
2893
2894 for (const char *p = rvalue;;) {
2895 _cleanup_free_ char *word = NULL, *k = NULL;
2896
2897 r = extract_first_word(&p, &word, NULL, EXTRACT_CUNESCAPE|EXTRACT_UNQUOTE);
2898 if (r == -ENOMEM)
2899 return log_oom();
2900 if (r < 0) {
2901 log_syntax(unit, LOG_WARNING, filename, line, r,
2902 "Trailing garbage in %s, ignoring: %s", lvalue, rvalue);
2903 break;
2904 }
2905 if (r == 0)
2906 break;
2907
2908 if (u) {
2909 r = unit_env_printf(u, word, &k);
2910 if (r < 0) {
2911 log_syntax(unit, LOG_WARNING, filename, line, r,
2912 "Failed to resolve unit specifiers in %s, ignoring: %m", word);
2913 continue;
2914 }
2915 } else
2916 k = TAKE_PTR(word);
2917
2918 if (!env_assignment_is_valid(k) && !env_name_is_valid(k)) {
2919 log_syntax(unit, LOG_WARNING, filename, line, 0,
2920 "Invalid environment name or assignment %s, ignoring: %s", lvalue, k);
2921 continue;
2922 }
2923
2924 if (!GREEDY_REALLOC(n, nlen + 2))
2925 return log_oom();
2926
2927 n[nlen++] = TAKE_PTR(k);
2928 n[nlen] = NULL;
2929 }
2930
2931 if (n) {
2932 r = strv_extend_strv(unsetenv, n, true);
2933 if (r < 0)
2934 return log_oom();
2935 }
2936
2937 return 0;
2938 }
2939
2940 int config_parse_log_extra_fields(
2941 const char *unit,
2942 const char *filename,
2943 unsigned line,
2944 const char *section,
2945 unsigned section_line,
2946 const char *lvalue,
2947 int ltype,
2948 const char *rvalue,
2949 void *data,
2950 void *userdata) {
2951
2952 ExecContext *c = ASSERT_PTR(data);
2953 const Unit *u = userdata;
2954 int r;
2955
2956 assert(filename);
2957 assert(lvalue);
2958 assert(rvalue);
2959
2960 if (isempty(rvalue)) {
2961 exec_context_free_log_extra_fields(c);
2962 return 0;
2963 }
2964
2965 for (const char *p = rvalue;;) {
2966 _cleanup_free_ char *word = NULL, *k = NULL;
2967 struct iovec *t;
2968 const char *eq;
2969
2970 r = extract_first_word(&p, &word, NULL, EXTRACT_CUNESCAPE|EXTRACT_UNQUOTE);
2971 if (r == -ENOMEM)
2972 return log_oom();
2973 if (r < 0) {
2974 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid syntax, ignoring: %s", rvalue);
2975 return 0;
2976 }
2977 if (r == 0)
2978 return 0;
2979
2980 r = unit_full_printf(u, word, &k);
2981 if (r < 0) {
2982 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", word);
2983 continue;
2984 }
2985
2986 eq = strchr(k, '=');
2987 if (!eq) {
2988 log_syntax(unit, LOG_WARNING, filename, line, 0, "Log field lacks '=' character, ignoring: %s", k);
2989 continue;
2990 }
2991
2992 if (!journal_field_valid(k, eq-k, false)) {
2993 log_syntax(unit, LOG_WARNING, filename, line, 0, "Log field name is invalid, ignoring: %s", k);
2994 continue;
2995 }
2996
2997 t = reallocarray(c->log_extra_fields, c->n_log_extra_fields+1, sizeof(struct iovec));
2998 if (!t)
2999 return log_oom();
3000
3001 c->log_extra_fields = t;
3002 c->log_extra_fields[c->n_log_extra_fields++] = IOVEC_MAKE_STRING(k);
3003
3004 k = NULL;
3005 }
3006 }
3007
3008 int config_parse_log_namespace(
3009 const char *unit,
3010 const char *filename,
3011 unsigned line,
3012 const char *section,
3013 unsigned section_line,
3014 const char *lvalue,
3015 int ltype,
3016 const char *rvalue,
3017 void *data,
3018 void *userdata) {
3019
3020 _cleanup_free_ char *k = NULL;
3021 ExecContext *c = ASSERT_PTR(data);
3022 const Unit *u = userdata;
3023 int r;
3024
3025 assert(filename);
3026 assert(lvalue);
3027 assert(rvalue);
3028
3029 if (isempty(rvalue)) {
3030 c->log_namespace = mfree(c->log_namespace);
3031 return 0;
3032 }
3033
3034 r = unit_full_printf_full(u, rvalue, NAME_MAX, &k);
3035 if (r < 0) {
3036 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", rvalue);
3037 return 0;
3038 }
3039
3040 if (!log_namespace_name_valid(k)) {
3041 log_syntax(unit, LOG_WARNING, filename, line, 0, "Specified log namespace name is not valid, ignoring: %s", k);
3042 return 0;
3043 }
3044
3045 free_and_replace(c->log_namespace, k);
3046 return 0;
3047 }
3048
3049 int config_parse_unit_condition_path(
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 *p = NULL;
3062 Condition **list = ASSERT_PTR(data), *c;
3063 ConditionType t = ltype;
3064 bool trigger, negate;
3065 const Unit *u = userdata;
3066 int r;
3067
3068 assert(filename);
3069 assert(lvalue);
3070 assert(rvalue);
3071
3072 if (isempty(rvalue)) {
3073 /* Empty assignment resets the list */
3074 *list = condition_free_list(*list);
3075 return 0;
3076 }
3077
3078 trigger = rvalue[0] == '|';
3079 if (trigger)
3080 rvalue++;
3081
3082 negate = rvalue[0] == '!';
3083 if (negate)
3084 rvalue++;
3085
3086 r = unit_path_printf(u, rvalue, &p);
3087 if (r < 0) {
3088 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", rvalue);
3089 return 0;
3090 }
3091
3092 r = path_simplify_and_warn(p, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
3093 if (r < 0)
3094 return 0;
3095
3096 c = condition_new(t, p, trigger, negate);
3097 if (!c)
3098 return log_oom();
3099
3100 LIST_PREPEND(conditions, *list, c);
3101 return 0;
3102 }
3103
3104 int config_parse_unit_condition_string(
3105 const char *unit,
3106 const char *filename,
3107 unsigned line,
3108 const char *section,
3109 unsigned section_line,
3110 const char *lvalue,
3111 int ltype,
3112 const char *rvalue,
3113 void *data,
3114 void *userdata) {
3115
3116 _cleanup_free_ char *s = NULL;
3117 Condition **list = ASSERT_PTR(data), *c;
3118 ConditionType t = ltype;
3119 bool trigger, negate;
3120 const Unit *u = userdata;
3121 int r;
3122
3123 assert(filename);
3124 assert(lvalue);
3125 assert(rvalue);
3126
3127 if (isempty(rvalue)) {
3128 /* Empty assignment resets the list */
3129 *list = condition_free_list(*list);
3130 return 0;
3131 }
3132
3133 trigger = *rvalue == '|';
3134 if (trigger)
3135 rvalue += 1 + strspn(rvalue + 1, WHITESPACE);
3136
3137 negate = *rvalue == '!';
3138 if (negate)
3139 rvalue += 1 + strspn(rvalue + 1, WHITESPACE);
3140
3141 r = unit_full_printf(u, rvalue, &s);
3142 if (r < 0) {
3143 log_syntax(unit, LOG_WARNING, filename, line, r,
3144 "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue);
3145 return 0;
3146 }
3147
3148 c = condition_new(t, s, trigger, negate);
3149 if (!c)
3150 return log_oom();
3151
3152 LIST_PREPEND(conditions, *list, c);
3153 return 0;
3154 }
3155
3156 int config_parse_unit_mounts_for(
3157 const char *unit,
3158 const char *filename,
3159 unsigned line,
3160 const char *section,
3161 unsigned section_line,
3162 const char *lvalue,
3163 int ltype,
3164 const char *rvalue,
3165 void *data,
3166 void *userdata) {
3167
3168 Unit *u = userdata;
3169 int r;
3170
3171 assert(filename);
3172 assert(lvalue);
3173 assert(rvalue);
3174 assert(data);
3175 assert(STR_IN_SET(lvalue, "RequiresMountsFor", "WantsMountsFor"));
3176
3177 for (const char *p = rvalue;;) {
3178 _cleanup_free_ char *word = NULL, *resolved = NULL;
3179
3180 r = extract_first_word(&p, &word, NULL, EXTRACT_UNQUOTE);
3181 if (r == -ENOMEM)
3182 return log_oom();
3183 if (r < 0) {
3184 log_syntax(unit, LOG_WARNING, filename, line, r,
3185 "Invalid syntax, ignoring: %s", rvalue);
3186 return 0;
3187 }
3188 if (r == 0)
3189 return 0;
3190
3191 r = unit_path_printf(u, word, &resolved);
3192 if (r < 0) {
3193 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", word);
3194 continue;
3195 }
3196
3197 r = path_simplify_and_warn(resolved, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
3198 if (r < 0)
3199 continue;
3200
3201 r = unit_add_mounts_for(u, resolved, UNIT_DEPENDENCY_FILE, unit_mount_dependency_type_from_string(lvalue));
3202 if (r < 0) {
3203 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to add requested mount '%s', ignoring: %m", resolved);
3204 continue;
3205 }
3206 }
3207 }
3208
3209 int config_parse_documentation(
3210 const char *unit,
3211 const char *filename,
3212 unsigned line,
3213 const char *section,
3214 unsigned section_line,
3215 const char *lvalue,
3216 int ltype,
3217 const char *rvalue,
3218 void *data,
3219 void *userdata) {
3220
3221 Unit *u = ASSERT_PTR(userdata);
3222 int r;
3223 char **a, **b;
3224
3225 assert(filename);
3226 assert(lvalue);
3227 assert(rvalue);
3228
3229 if (isempty(rvalue)) {
3230 /* Empty assignment resets the list */
3231 u->documentation = strv_free(u->documentation);
3232 return 0;
3233 }
3234
3235 r = config_parse_unit_strv_printf(unit, filename, line, section, section_line, lvalue, ltype,
3236 rvalue, data, userdata);
3237 if (r < 0)
3238 return r;
3239
3240 for (a = b = u->documentation; a && *a; a++) {
3241
3242 if (documentation_url_is_valid(*a))
3243 *(b++) = *a;
3244 else {
3245 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid URL, ignoring: %s", *a);
3246 free(*a);
3247 }
3248 }
3249 if (b)
3250 *b = NULL;
3251
3252 return 0;
3253 }
3254
3255 #if HAVE_SECCOMP
3256 int config_parse_syscall_filter(
3257 const char *unit,
3258 const char *filename,
3259 unsigned line,
3260 const char *section,
3261 unsigned section_line,
3262 const char *lvalue,
3263 int ltype,
3264 const char *rvalue,
3265 void *data,
3266 void *userdata) {
3267
3268 ExecContext *c = data;
3269 _unused_ const Unit *u = ASSERT_PTR(userdata);
3270 bool invert = false;
3271 int r;
3272
3273 assert(filename);
3274 assert(lvalue);
3275 assert(rvalue);
3276
3277 if (isempty(rvalue)) {
3278 /* Empty assignment resets the list */
3279 c->syscall_filter = hashmap_free(c->syscall_filter);
3280 c->syscall_allow_list = false;
3281 return 0;
3282 }
3283
3284 if (rvalue[0] == '~') {
3285 invert = true;
3286 rvalue++;
3287 }
3288
3289 if (!c->syscall_filter) {
3290 c->syscall_filter = hashmap_new(NULL);
3291 if (!c->syscall_filter)
3292 return log_oom();
3293
3294 if (invert)
3295 /* Allow everything but the ones listed */
3296 c->syscall_allow_list = false;
3297 else {
3298 /* Allow nothing but the ones listed */
3299 c->syscall_allow_list = true;
3300
3301 /* Accept default syscalls if we are on an allow_list */
3302 r = seccomp_parse_syscall_filter(
3303 "@default", -1, c->syscall_filter,
3304 SECCOMP_PARSE_PERMISSIVE|SECCOMP_PARSE_ALLOW_LIST,
3305 unit,
3306 NULL, 0);
3307 if (r < 0)
3308 return r;
3309 }
3310 }
3311
3312 for (const char *p = rvalue;;) {
3313 _cleanup_free_ char *word = NULL, *name = NULL;
3314 int num;
3315
3316 r = extract_first_word(&p, &word, NULL, 0);
3317 if (r == -ENOMEM)
3318 return log_oom();
3319 if (r < 0) {
3320 log_syntax(unit, LOG_WARNING, filename, line, r,
3321 "Invalid syntax, ignoring: %s", rvalue);
3322 return 0;
3323 }
3324 if (r == 0)
3325 return 0;
3326
3327 r = parse_syscall_and_errno(word, &name, &num);
3328 if (r < 0) {
3329 log_syntax(unit, LOG_WARNING, filename, line, r,
3330 "Failed to parse syscall:errno, ignoring: %s", word);
3331 continue;
3332 }
3333 if (!invert && num >= 0) {
3334 log_syntax(unit, LOG_WARNING, filename, line, 0,
3335 "Allow-listed system calls cannot take error number, ignoring: %s", word);
3336 continue;
3337 }
3338
3339 r = seccomp_parse_syscall_filter(
3340 name, num, c->syscall_filter,
3341 SECCOMP_PARSE_LOG|SECCOMP_PARSE_PERMISSIVE|
3342 (invert ? SECCOMP_PARSE_INVERT : 0)|
3343 (c->syscall_allow_list ? SECCOMP_PARSE_ALLOW_LIST : 0),
3344 unit, filename, line);
3345 if (r < 0)
3346 return r;
3347 }
3348 }
3349
3350 int config_parse_syscall_log(
3351 const char *unit,
3352 const char *filename,
3353 unsigned line,
3354 const char *section,
3355 unsigned section_line,
3356 const char *lvalue,
3357 int ltype,
3358 const char *rvalue,
3359 void *data,
3360 void *userdata) {
3361
3362 ExecContext *c = data;
3363 _unused_ const Unit *u = ASSERT_PTR(userdata);
3364 bool invert = false;
3365 const char *p;
3366 int r;
3367
3368 assert(filename);
3369 assert(lvalue);
3370 assert(rvalue);
3371
3372 if (isempty(rvalue)) {
3373 /* Empty assignment resets the list */
3374 c->syscall_log = hashmap_free(c->syscall_log);
3375 c->syscall_log_allow_list = false;
3376 return 0;
3377 }
3378
3379 if (rvalue[0] == '~') {
3380 invert = true;
3381 rvalue++;
3382 }
3383
3384 if (!c->syscall_log) {
3385 c->syscall_log = hashmap_new(NULL);
3386 if (!c->syscall_log)
3387 return log_oom();
3388
3389 if (invert)
3390 /* Log everything but the ones listed */
3391 c->syscall_log_allow_list = false;
3392 else
3393 /* Log nothing but the ones listed */
3394 c->syscall_log_allow_list = true;
3395 }
3396
3397 p = rvalue;
3398 for (;;) {
3399 _cleanup_free_ char *word = NULL;
3400
3401 r = extract_first_word(&p, &word, NULL, 0);
3402 if (r == -ENOMEM)
3403 return log_oom();
3404 if (r < 0) {
3405 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid syntax, ignoring: %s", rvalue);
3406 return 0;
3407 }
3408 if (r == 0)
3409 return 0;
3410
3411 r = seccomp_parse_syscall_filter(
3412 word, -1, c->syscall_log,
3413 SECCOMP_PARSE_LOG|SECCOMP_PARSE_PERMISSIVE|
3414 (invert ? SECCOMP_PARSE_INVERT : 0)|
3415 (c->syscall_log_allow_list ? SECCOMP_PARSE_ALLOW_LIST : 0),
3416 unit, filename, line);
3417 if (r < 0)
3418 return r;
3419 }
3420 }
3421
3422 int config_parse_syscall_archs(
3423 const char *unit,
3424 const char *filename,
3425 unsigned line,
3426 const char *section,
3427 unsigned section_line,
3428 const char *lvalue,
3429 int ltype,
3430 const char *rvalue,
3431 void *data,
3432 void *userdata) {
3433
3434 Set **archs = data;
3435 int r;
3436
3437 if (isempty(rvalue)) {
3438 *archs = set_free(*archs);
3439 return 0;
3440 }
3441
3442 for (const char *p = rvalue;;) {
3443 _cleanup_free_ char *word = NULL;
3444 uint32_t a;
3445
3446 r = extract_first_word(&p, &word, NULL, EXTRACT_UNQUOTE);
3447 if (r == -ENOMEM)
3448 return log_oom();
3449 if (r < 0) {
3450 log_syntax(unit, LOG_WARNING, filename, line, r,
3451 "Invalid syntax, ignoring: %s", rvalue);
3452 return 0;
3453 }
3454 if (r == 0)
3455 return 0;
3456
3457 r = seccomp_arch_from_string(word, &a);
3458 if (r < 0) {
3459 log_syntax(unit, LOG_WARNING, filename, line, r,
3460 "Failed to parse system call architecture \"%s\", ignoring: %m", word);
3461 continue;
3462 }
3463
3464 r = set_ensure_put(archs, NULL, UINT32_TO_PTR(a + 1));
3465 if (r < 0)
3466 return log_oom();
3467 }
3468 }
3469
3470 int config_parse_syscall_errno(
3471 const char *unit,
3472 const char *filename,
3473 unsigned line,
3474 const char *section,
3475 unsigned section_line,
3476 const char *lvalue,
3477 int ltype,
3478 const char *rvalue,
3479 void *data,
3480 void *userdata) {
3481
3482 ExecContext *c = data;
3483 int e;
3484
3485 assert(filename);
3486 assert(lvalue);
3487 assert(rvalue);
3488
3489 if (isempty(rvalue) || streq(rvalue, "kill")) {
3490 /* Empty assignment resets to KILL */
3491 c->syscall_errno = SECCOMP_ERROR_NUMBER_KILL;
3492 return 0;
3493 }
3494
3495 e = parse_errno(rvalue);
3496 if (e < 0) {
3497 log_syntax(unit, LOG_WARNING, filename, line, e, "Failed to parse error number, ignoring: %s", rvalue);
3498 return 0;
3499 }
3500 if (e == 0) {
3501 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid error number, ignoring: %s", rvalue);
3502 return 0;
3503 }
3504
3505 c->syscall_errno = e;
3506 return 0;
3507 }
3508
3509 int config_parse_address_families(
3510 const char *unit,
3511 const char *filename,
3512 unsigned line,
3513 const char *section,
3514 unsigned section_line,
3515 const char *lvalue,
3516 int ltype,
3517 const char *rvalue,
3518 void *data,
3519 void *userdata) {
3520
3521 ExecContext *c = data;
3522 bool invert = false;
3523 int r;
3524
3525 assert(filename);
3526 assert(lvalue);
3527 assert(rvalue);
3528
3529 if (isempty(rvalue)) {
3530 /* Empty assignment resets the list */
3531 c->address_families = set_free(c->address_families);
3532 c->address_families_allow_list = false;
3533 return 0;
3534 }
3535
3536 if (streq(rvalue, "none")) {
3537 /* Forbid all address families. */
3538 c->address_families = set_free(c->address_families);
3539 c->address_families_allow_list = true;
3540 return 0;
3541 }
3542
3543 if (rvalue[0] == '~') {
3544 invert = true;
3545 rvalue++;
3546 }
3547
3548 if (!c->address_families) {
3549 c->address_families = set_new(NULL);
3550 if (!c->address_families)
3551 return log_oom();
3552
3553 c->address_families_allow_list = !invert;
3554 }
3555
3556 for (const char *p = rvalue;;) {
3557 _cleanup_free_ char *word = NULL;
3558 int af;
3559
3560 r = extract_first_word(&p, &word, NULL, EXTRACT_UNQUOTE);
3561 if (r == -ENOMEM)
3562 return log_oom();
3563 if (r < 0) {
3564 log_syntax(unit, LOG_WARNING, filename, line, r,
3565 "Invalid syntax, ignoring: %s", rvalue);
3566 return 0;
3567 }
3568 if (r == 0)
3569 return 0;
3570
3571 af = af_from_name(word);
3572 if (af < 0) {
3573 log_syntax(unit, LOG_WARNING, filename, line, af,
3574 "Failed to parse address family, ignoring: %s", word);
3575 continue;
3576 }
3577
3578 /* If we previously wanted to forbid an address family and now
3579 * we want to allow it, then just remove it from the list.
3580 */
3581 if (!invert == c->address_families_allow_list) {
3582 r = set_put(c->address_families, INT_TO_PTR(af));
3583 if (r < 0)
3584 return log_oom();
3585 } else
3586 set_remove(c->address_families, INT_TO_PTR(af));
3587 }
3588 }
3589
3590 int config_parse_restrict_namespaces(
3591 const char *unit,
3592 const char *filename,
3593 unsigned line,
3594 const char *section,
3595 unsigned section_line,
3596 const char *lvalue,
3597 int ltype,
3598 const char *rvalue,
3599 void *data,
3600 void *userdata) {
3601
3602 ExecContext *c = data;
3603 unsigned long flags;
3604 bool invert = false;
3605 int r;
3606
3607 if (isempty(rvalue)) {
3608 /* Reset to the default. */
3609 c->restrict_namespaces = NAMESPACE_FLAGS_INITIAL;
3610 return 0;
3611 }
3612
3613 /* Boolean parameter ignores the previous settings */
3614 r = parse_boolean(rvalue);
3615 if (r > 0) {
3616 c->restrict_namespaces = 0;
3617 return 0;
3618 } else if (r == 0) {
3619 c->restrict_namespaces = NAMESPACE_FLAGS_ALL;
3620 return 0;
3621 }
3622
3623 if (rvalue[0] == '~') {
3624 invert = true;
3625 rvalue++;
3626 }
3627
3628 /* Not a boolean argument, in this case it's a list of namespace types. */
3629 r = namespace_flags_from_string(rvalue, &flags);
3630 if (r < 0) {
3631 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse namespace type string, ignoring: %s", rvalue);
3632 return 0;
3633 }
3634
3635 if (c->restrict_namespaces == NAMESPACE_FLAGS_INITIAL)
3636 /* Initial assignment. Just set the value. */
3637 c->restrict_namespaces = invert ? (~flags) & NAMESPACE_FLAGS_ALL : flags;
3638 else
3639 /* Merge the value with the previous one. */
3640 SET_FLAG(c->restrict_namespaces, flags, !invert);
3641
3642 return 0;
3643 }
3644 #endif
3645
3646 int config_parse_restrict_filesystems(
3647 const char *unit,
3648 const char *filename,
3649 unsigned line,
3650 const char *section,
3651 unsigned section_line,
3652 const char *lvalue,
3653 int ltype,
3654 const char *rvalue,
3655 void *data,
3656 void *userdata) {
3657 ExecContext *c = ASSERT_PTR(data);
3658 bool invert = false;
3659 int r;
3660
3661 assert(filename);
3662 assert(lvalue);
3663 assert(rvalue);
3664
3665 if (isempty(rvalue)) {
3666 /* Empty assignment resets the list */
3667 c->restrict_filesystems = set_free_free(c->restrict_filesystems);
3668 c->restrict_filesystems_allow_list = false;
3669 return 0;
3670 }
3671
3672 if (rvalue[0] == '~') {
3673 invert = true;
3674 rvalue++;
3675 }
3676
3677 if (!c->restrict_filesystems) {
3678 if (invert)
3679 /* Allow everything but the ones listed */
3680 c->restrict_filesystems_allow_list = false;
3681 else
3682 /* Allow nothing but the ones listed */
3683 c->restrict_filesystems_allow_list = true;
3684 }
3685
3686 for (const char *p = rvalue;;) {
3687 _cleanup_free_ char *word = NULL;
3688
3689 r = extract_first_word(&p, &word, NULL, EXTRACT_UNQUOTE);
3690 if (r == 0)
3691 break;
3692 if (r == -ENOMEM)
3693 return log_oom();
3694 if (r < 0) {
3695 log_syntax(unit, LOG_WARNING, filename, line, r,
3696 "Trailing garbage in %s, ignoring: %s", lvalue, rvalue);
3697 break;
3698 }
3699
3700 r = lsm_bpf_parse_filesystem(
3701 word,
3702 &c->restrict_filesystems,
3703 FILESYSTEM_PARSE_LOG|
3704 (invert ? FILESYSTEM_PARSE_INVERT : 0)|
3705 (c->restrict_filesystems_allow_list ? FILESYSTEM_PARSE_ALLOW_LIST : 0),
3706 unit, filename, line);
3707
3708 if (r < 0)
3709 return r;
3710 }
3711
3712 return 0;
3713 }
3714
3715 int config_parse_unit_slice(
3716 const char *unit,
3717 const char *filename,
3718 unsigned line,
3719 const char *section,
3720 unsigned section_line,
3721 const char *lvalue,
3722 int ltype,
3723 const char *rvalue,
3724 void *data,
3725 void *userdata) {
3726
3727 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
3728 _cleanup_free_ char *k = NULL;
3729 Unit *u = userdata, *slice;
3730 int r;
3731
3732 assert(filename);
3733 assert(lvalue);
3734 assert(rvalue);
3735 assert(u);
3736
3737 r = unit_name_printf(u, rvalue, &k);
3738 if (r < 0) {
3739 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", rvalue);
3740 return 0;
3741 }
3742
3743 r = manager_load_unit(u->manager, k, NULL, &error, &slice);
3744 if (r < 0) {
3745 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to load slice unit %s, ignoring: %s", k, bus_error_message(&error, r));
3746 return 0;
3747 }
3748
3749 r = unit_set_slice(u, slice);
3750 if (r < 0) {
3751 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to assign slice %s to unit %s, ignoring: %m", slice->id, u->id);
3752 return 0;
3753 }
3754
3755 return 0;
3756 }
3757
3758 int config_parse_cpu_quota(
3759 const char *unit,
3760 const char *filename,
3761 unsigned line,
3762 const char *section,
3763 unsigned section_line,
3764 const char *lvalue,
3765 int ltype,
3766 const char *rvalue,
3767 void *data,
3768 void *userdata) {
3769
3770 CGroupContext *c = data;
3771 int r;
3772
3773 assert(filename);
3774 assert(lvalue);
3775 assert(rvalue);
3776
3777 if (isempty(rvalue)) {
3778 c->cpu_quota_per_sec_usec = USEC_INFINITY;
3779 return 0;
3780 }
3781
3782 r = parse_permyriad_unbounded(rvalue);
3783 if (r <= 0) {
3784 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid CPU quota '%s', ignoring.", rvalue);
3785 return 0;
3786 }
3787
3788 c->cpu_quota_per_sec_usec = ((usec_t) r * USEC_PER_SEC) / 10000U;
3789 return 0;
3790 }
3791
3792 int config_parse_allowed_cpuset(
3793 const char *unit,
3794 const char *filename,
3795 unsigned line,
3796 const char *section,
3797 unsigned section_line,
3798 const char *lvalue,
3799 int ltype,
3800 const char *rvalue,
3801 void *data,
3802 void *userdata) {
3803
3804 CPUSet *c = data;
3805 const Unit *u = userdata;
3806 _cleanup_free_ char *k = NULL;
3807 int r;
3808
3809 assert(filename);
3810 assert(lvalue);
3811 assert(rvalue);
3812
3813 r = unit_full_printf(u, rvalue, &k);
3814 if (r < 0) {
3815 log_syntax(unit, LOG_WARNING, filename, line, r,
3816 "Failed to resolve unit specifiers in '%s', ignoring: %m",
3817 rvalue);
3818 return 0;
3819 }
3820
3821 (void) parse_cpu_set_extend(k, c, true, unit, filename, line, lvalue);
3822 return 0;
3823 }
3824
3825 int config_parse_memory_limit(
3826 const char *unit,
3827 const char *filename,
3828 unsigned line,
3829 const char *section,
3830 unsigned section_line,
3831 const char *lvalue,
3832 int ltype,
3833 const char *rvalue,
3834 void *data,
3835 void *userdata) {
3836
3837 CGroupContext *c = data;
3838 uint64_t bytes = CGROUP_LIMIT_MAX;
3839 int r;
3840
3841 if (isempty(rvalue) && STR_IN_SET(lvalue, "DefaultMemoryLow",
3842 "DefaultMemoryMin",
3843 "MemoryLow",
3844 "StartupMemoryLow",
3845 "MemoryMin"))
3846 bytes = CGROUP_LIMIT_MIN;
3847 else if (!isempty(rvalue) && !streq(rvalue, "infinity")) {
3848
3849 r = parse_permyriad(rvalue);
3850 if (r < 0) {
3851 r = parse_size(rvalue, 1024, &bytes);
3852 if (r < 0) {
3853 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid memory limit '%s', ignoring: %m", rvalue);
3854 return 0;
3855 }
3856 } else
3857 bytes = physical_memory_scale(r, 10000U);
3858
3859 if (bytes >= UINT64_MAX ||
3860 (bytes <= 0 && !STR_IN_SET(lvalue,
3861 "MemorySwapMax",
3862 "StartupMemorySwapMax",
3863 "MemoryZSwapMax",
3864 "StartupMemoryZSwapMax",
3865 "MemoryLow",
3866 "StartupMemoryLow",
3867 "MemoryMin",
3868 "DefaultMemoryLow",
3869 "DefaultstartupMemoryLow",
3870 "DefaultMemoryMin"))) {
3871 log_syntax(unit, LOG_WARNING, filename, line, 0, "Memory limit '%s' out of range, ignoring.", rvalue);
3872 return 0;
3873 }
3874 }
3875
3876 if (streq(lvalue, "DefaultMemoryLow")) {
3877 c->default_memory_low = bytes;
3878 c->default_memory_low_set = true;
3879 } else if (streq(lvalue, "DefaultStartupMemoryLow")) {
3880 c->default_startup_memory_low = bytes;
3881 c->default_startup_memory_low_set = true;
3882 } else if (streq(lvalue, "DefaultMemoryMin")) {
3883 c->default_memory_min = bytes;
3884 c->default_memory_min_set = true;
3885 } else if (streq(lvalue, "MemoryMin")) {
3886 c->memory_min = bytes;
3887 c->memory_min_set = true;
3888 } else if (streq(lvalue, "MemoryLow")) {
3889 c->memory_low = bytes;
3890 c->memory_low_set = true;
3891 } else if (streq(lvalue, "StartupMemoryLow")) {
3892 c->startup_memory_low = bytes;
3893 c->startup_memory_low_set = true;
3894 } else if (streq(lvalue, "MemoryHigh"))
3895 c->memory_high = bytes;
3896 else if (streq(lvalue, "StartupMemoryHigh")) {
3897 c->startup_memory_high = bytes;
3898 c->startup_memory_high_set = true;
3899 } else if (streq(lvalue, "MemoryMax"))
3900 c->memory_max = bytes;
3901 else if (streq(lvalue, "StartupMemoryMax")) {
3902 c->startup_memory_max = bytes;
3903 c->startup_memory_max_set = true;
3904 } else if (streq(lvalue, "MemorySwapMax"))
3905 c->memory_swap_max = bytes;
3906 else if (streq(lvalue, "StartupMemorySwapMax")) {
3907 c->startup_memory_swap_max = bytes;
3908 c->startup_memory_swap_max_set = true;
3909 } else if (streq(lvalue, "MemoryZSwapMax"))
3910 c->memory_zswap_max = bytes;
3911 else if (streq(lvalue, "StartupMemoryZSwapMax")) {
3912 c->startup_memory_zswap_max = bytes;
3913 c->startup_memory_zswap_max_set = true;
3914 } else if (streq(lvalue, "MemoryLimit")) {
3915 log_syntax(unit, LOG_WARNING, filename, line, 0,
3916 "Unit uses MemoryLimit=; please use MemoryMax= instead. Support for MemoryLimit= will be removed soon.");
3917 c->memory_limit = bytes;
3918 } else
3919 return -EINVAL;
3920
3921 return 0;
3922 }
3923
3924 int config_parse_tasks_max(
3925 const char *unit,
3926 const char *filename,
3927 unsigned line,
3928 const char *section,
3929 unsigned section_line,
3930 const char *lvalue,
3931 int ltype,
3932 const char *rvalue,
3933 void *data,
3934 void *userdata) {
3935
3936 const Unit *u = userdata;
3937 CGroupTasksMax *tasks_max = data;
3938 uint64_t v;
3939 int r;
3940
3941 if (isempty(rvalue)) {
3942 *tasks_max = u ? u->manager->defaults.tasks_max : CGROUP_TASKS_MAX_UNSET;
3943 return 0;
3944 }
3945
3946 if (streq(rvalue, "infinity")) {
3947 *tasks_max = CGROUP_TASKS_MAX_UNSET;
3948 return 0;
3949 }
3950
3951 r = parse_permyriad(rvalue);
3952 if (r >= 0)
3953 *tasks_max = (CGroupTasksMax) { r, 10000U }; /* r‱ */
3954 else {
3955 r = safe_atou64(rvalue, &v);
3956 if (r < 0) {
3957 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid maximum tasks value '%s', ignoring: %m", rvalue);
3958 return 0;
3959 }
3960
3961 if (v <= 0 || v >= UINT64_MAX) {
3962 log_syntax(unit, LOG_WARNING, filename, line, 0, "Maximum tasks value '%s' out of range, ignoring.", rvalue);
3963 return 0;
3964 }
3965
3966 *tasks_max = (CGroupTasksMax) { v };
3967 }
3968
3969 return 0;
3970 }
3971
3972 int config_parse_delegate(
3973 const char *unit,
3974 const char *filename,
3975 unsigned line,
3976 const char *section,
3977 unsigned section_line,
3978 const char *lvalue,
3979 int ltype,
3980 const char *rvalue,
3981 void *data,
3982 void *userdata) {
3983
3984 CGroupContext *c = data;
3985 UnitType t;
3986 int r;
3987
3988 t = unit_name_to_type(unit);
3989 assert(t != _UNIT_TYPE_INVALID);
3990
3991 if (!unit_vtable[t]->can_delegate) {
3992 log_syntax(unit, LOG_WARNING, filename, line, 0, "Delegate= setting not supported for this unit type, ignoring.");
3993 return 0;
3994 }
3995
3996 /* We either accept a boolean value, which may be used to turn on delegation for all controllers, or
3997 * turn it off for all. Or it takes a list of controller names, in which case we add the specified
3998 * controllers to the mask to delegate. Delegate= enables delegation without any controllers. */
3999
4000 if (isempty(rvalue)) {
4001 /* An empty string resets controllers and sets Delegate=yes. */
4002 c->delegate = true;
4003 c->delegate_controllers = 0;
4004 return 0;
4005 }
4006
4007 r = parse_boolean(rvalue);
4008 if (r < 0) {
4009 CGroupMask mask = 0;
4010
4011 for (const char *p = rvalue;;) {
4012 _cleanup_free_ char *word = NULL;
4013 CGroupController cc;
4014
4015 r = extract_first_word(&p, &word, NULL, EXTRACT_UNQUOTE);
4016 if (r == -ENOMEM)
4017 return log_oom();
4018 if (r < 0) {
4019 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid syntax, ignoring: %s", rvalue);
4020 return 0;
4021 }
4022 if (r == 0)
4023 break;
4024
4025 cc = cgroup_controller_from_string(word);
4026 if (cc < 0) {
4027 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid controller name '%s', ignoring", word);
4028 continue;
4029 }
4030
4031 mask |= CGROUP_CONTROLLER_TO_MASK(cc);
4032 }
4033
4034 c->delegate = true;
4035 c->delegate_controllers |= mask;
4036
4037 } else if (r > 0) {
4038 c->delegate = true;
4039 c->delegate_controllers = CGROUP_MASK_DELEGATE;
4040 } else {
4041 c->delegate = false;
4042 c->delegate_controllers = 0;
4043 }
4044
4045 return 0;
4046 }
4047
4048 int config_parse_delegate_subgroup(
4049 const char *unit,
4050 const char *filename,
4051 unsigned line,
4052 const char *section,
4053 unsigned section_line,
4054 const char *lvalue,
4055 int ltype,
4056 const char *rvalue,
4057 void *data,
4058 void *userdata) {
4059
4060 CGroupContext *c = ASSERT_PTR(data);
4061 UnitType t;
4062
4063 t = unit_name_to_type(unit);
4064 assert(t >= 0);
4065
4066 if (!unit_vtable[t]->can_delegate) {
4067 log_syntax(unit, LOG_WARNING, filename, line, 0, "DelegateSubgroup= setting not supported for this unit type, ignoring.");
4068 return 0;
4069 }
4070
4071 if (isempty(rvalue)) {
4072 c->delegate_subgroup = mfree(c->delegate_subgroup);
4073 return 0;
4074 }
4075
4076 if (cg_needs_escape(rvalue)) { /* Insist that specified names don't need escaping */
4077 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid control group name, ignoring: %s", rvalue);
4078 return 0;
4079 }
4080
4081 return free_and_strdup_warn(&c->delegate_subgroup, rvalue);
4082 }
4083
4084 int config_parse_managed_oom_mode(
4085 const char *unit,
4086 const char *filename,
4087 unsigned line,
4088 const char *section,
4089 unsigned section_line,
4090 const char *lvalue,
4091 int ltype,
4092 const char *rvalue,
4093 void *data,
4094 void *userdata) {
4095
4096 ManagedOOMMode *mode = data, m;
4097 UnitType t;
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 *mode = MANAGED_OOM_AUTO;
4107 return 0;
4108 }
4109
4110 m = managed_oom_mode_from_string(rvalue);
4111 if (m < 0) {
4112 log_syntax(unit, LOG_WARNING, filename, line, m, "Invalid syntax, ignoring: %s", rvalue);
4113 return 0;
4114 }
4115
4116 *mode = m;
4117 return 0;
4118 }
4119
4120 int config_parse_managed_oom_mem_pressure_limit(
4121 const char *unit,
4122 const char *filename,
4123 unsigned line,
4124 const char *section,
4125 unsigned section_line,
4126 const char *lvalue,
4127 int ltype,
4128 const char *rvalue,
4129 void *data,
4130 void *userdata) {
4131
4132 uint32_t *limit = data;
4133 UnitType t;
4134 int r;
4135
4136 t = unit_name_to_type(unit);
4137 assert(t != _UNIT_TYPE_INVALID);
4138
4139 if (!unit_vtable[t]->can_set_managed_oom)
4140 return log_syntax(unit, LOG_WARNING, filename, line, 0, "%s= is not supported for this unit type, ignoring.", lvalue);
4141
4142 if (isempty(rvalue)) {
4143 *limit = 0;
4144 return 0;
4145 }
4146
4147 r = parse_permyriad(rvalue);
4148 if (r < 0) {
4149 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse memory pressure limit value, ignoring: %s", rvalue);
4150 return 0;
4151 }
4152
4153 /* Normalize to 2^32-1 == 100% */
4154 *limit = UINT32_SCALE_FROM_PERMYRIAD(r);
4155 return 0;
4156 }
4157
4158 int config_parse_device_allow(
4159 const char *unit,
4160 const char *filename,
4161 unsigned line,
4162 const char *section,
4163 unsigned section_line,
4164 const char *lvalue,
4165 int ltype,
4166 const char *rvalue,
4167 void *data,
4168 void *userdata) {
4169
4170 _cleanup_free_ char *path = NULL, *resolved = NULL;
4171 CGroupDevicePermissions permissions;
4172 CGroupContext *c = data;
4173 const char *p = rvalue;
4174 int r;
4175
4176 if (isempty(rvalue)) {
4177 while (c->device_allow)
4178 cgroup_context_free_device_allow(c, c->device_allow);
4179
4180 return 0;
4181 }
4182
4183 r = extract_first_word(&p, &path, NULL, EXTRACT_UNQUOTE);
4184 if (r == -ENOMEM)
4185 return log_oom();
4186 if (r <= 0) {
4187 log_syntax(unit, LOG_WARNING, filename, line, r,
4188 "Failed to extract device path and rights from '%s', ignoring.", rvalue);
4189 return 0;
4190 }
4191
4192 r = unit_path_printf(userdata, path, &resolved);
4193 if (r < 0) {
4194 log_syntax(unit, LOG_WARNING, filename, line, r,
4195 "Failed to resolve unit specifiers in '%s', ignoring: %m", path);
4196 return 0;
4197 }
4198
4199 if (!STARTSWITH_SET(resolved, "block-", "char-")) {
4200
4201 r = path_simplify_and_warn(resolved, 0, unit, filename, line, lvalue);
4202 if (r < 0)
4203 return 0;
4204
4205 if (!valid_device_node_path(resolved)) {
4206 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid device node path '%s', ignoring.", resolved);
4207 return 0;
4208 }
4209 }
4210
4211 permissions = isempty(p) ? 0 : cgroup_device_permissions_from_string(p);
4212 if (permissions < 0) {
4213 log_syntax(unit, LOG_WARNING, filename, line, permissions, "Invalid device rights '%s', ignoring.", p);
4214 return 0;
4215 }
4216
4217 return cgroup_context_add_device_allow(c, resolved, permissions);
4218 }
4219
4220 int config_parse_io_device_weight(
4221 const char *unit,
4222 const char *filename,
4223 unsigned line,
4224 const char *section,
4225 unsigned section_line,
4226 const char *lvalue,
4227 int ltype,
4228 const char *rvalue,
4229 void *data,
4230 void *userdata) {
4231
4232 _cleanup_free_ char *path = NULL, *resolved = NULL;
4233 CGroupIODeviceWeight *w;
4234 CGroupContext *c = data;
4235 const char *p = ASSERT_PTR(rvalue);
4236 uint64_t u;
4237 int r;
4238
4239 assert(filename);
4240 assert(lvalue);
4241
4242 if (isempty(rvalue)) {
4243 while (c->io_device_weights)
4244 cgroup_context_free_io_device_weight(c, c->io_device_weights);
4245
4246 return 0;
4247 }
4248
4249 r = extract_first_word(&p, &path, NULL, EXTRACT_UNQUOTE);
4250 if (r == -ENOMEM)
4251 return log_oom();
4252 if (r < 0) {
4253 log_syntax(unit, LOG_WARNING, filename, line, r,
4254 "Failed to extract device path and weight from '%s', ignoring.", rvalue);
4255 return 0;
4256 }
4257 if (r == 0 || isempty(p)) {
4258 log_syntax(unit, LOG_WARNING, filename, line, 0,
4259 "Invalid device path or weight specified in '%s', ignoring.", rvalue);
4260 return 0;
4261 }
4262
4263 r = unit_path_printf(userdata, path, &resolved);
4264 if (r < 0) {
4265 log_syntax(unit, LOG_WARNING, filename, line, r,
4266 "Failed to resolve unit specifiers in '%s', ignoring: %m", path);
4267 return 0;
4268 }
4269
4270 r = path_simplify_and_warn(resolved, 0, unit, filename, line, lvalue);
4271 if (r < 0)
4272 return 0;
4273
4274 r = cg_weight_parse(p, &u);
4275 if (r < 0) {
4276 log_syntax(unit, LOG_WARNING, filename, line, r, "IO weight '%s' invalid, ignoring: %m", p);
4277 return 0;
4278 }
4279
4280 assert(u != CGROUP_WEIGHT_INVALID);
4281
4282 w = new0(CGroupIODeviceWeight, 1);
4283 if (!w)
4284 return log_oom();
4285
4286 w->path = TAKE_PTR(resolved);
4287 w->weight = u;
4288
4289 LIST_PREPEND(device_weights, c->io_device_weights, w);
4290 return 0;
4291 }
4292
4293 int config_parse_io_device_latency(
4294 const char *unit,
4295 const char *filename,
4296 unsigned line,
4297 const char *section,
4298 unsigned section_line,
4299 const char *lvalue,
4300 int ltype,
4301 const char *rvalue,
4302 void *data,
4303 void *userdata) {
4304
4305 _cleanup_free_ char *path = NULL, *resolved = NULL;
4306 CGroupIODeviceLatency *l;
4307 CGroupContext *c = data;
4308 const char *p = ASSERT_PTR(rvalue);
4309 usec_t usec;
4310 int r;
4311
4312 assert(filename);
4313 assert(lvalue);
4314
4315 if (isempty(rvalue)) {
4316 while (c->io_device_latencies)
4317 cgroup_context_free_io_device_latency(c, c->io_device_latencies);
4318
4319 return 0;
4320 }
4321
4322 r = extract_first_word(&p, &path, NULL, EXTRACT_UNQUOTE);
4323 if (r == -ENOMEM)
4324 return log_oom();
4325 if (r < 0) {
4326 log_syntax(unit, LOG_WARNING, filename, line, r,
4327 "Failed to extract device path and latency from '%s', ignoring.", rvalue);
4328 return 0;
4329 }
4330 if (r == 0 || isempty(p)) {
4331 log_syntax(unit, LOG_WARNING, filename, line, 0,
4332 "Invalid device path or latency specified in '%s', ignoring.", rvalue);
4333 return 0;
4334 }
4335
4336 r = unit_path_printf(userdata, path, &resolved);
4337 if (r < 0) {
4338 log_syntax(unit, LOG_WARNING, filename, line, r,
4339 "Failed to resolve unit specifiers in '%s', ignoring: %m", path);
4340 return 0;
4341 }
4342
4343 r = path_simplify_and_warn(resolved, 0, unit, filename, line, lvalue);
4344 if (r < 0)
4345 return 0;
4346
4347 r = parse_sec(p, &usec);
4348 if (r < 0) {
4349 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse timer value, ignoring: %s", p);
4350 return 0;
4351 }
4352
4353 l = new0(CGroupIODeviceLatency, 1);
4354 if (!l)
4355 return log_oom();
4356
4357 l->path = TAKE_PTR(resolved);
4358 l->target_usec = usec;
4359
4360 LIST_PREPEND(device_latencies, c->io_device_latencies, l);
4361 return 0;
4362 }
4363
4364 int config_parse_io_limit(
4365 const char *unit,
4366 const char *filename,
4367 unsigned line,
4368 const char *section,
4369 unsigned section_line,
4370 const char *lvalue,
4371 int ltype,
4372 const char *rvalue,
4373 void *data,
4374 void *userdata) {
4375
4376 _cleanup_free_ char *path = NULL, *resolved = NULL;
4377 CGroupIODeviceLimit *l = NULL;
4378 CGroupContext *c = data;
4379 CGroupIOLimitType type;
4380 const char *p = ASSERT_PTR(rvalue);
4381 uint64_t num;
4382 int r;
4383
4384 assert(filename);
4385 assert(lvalue);
4386
4387 type = cgroup_io_limit_type_from_string(lvalue);
4388 assert(type >= 0);
4389
4390 if (isempty(rvalue)) {
4391 LIST_FOREACH(device_limits, t, c->io_device_limits)
4392 t->limits[type] = cgroup_io_limit_defaults[type];
4393 return 0;
4394 }
4395
4396 r = extract_first_word(&p, &path, NULL, EXTRACT_UNQUOTE);
4397 if (r == -ENOMEM)
4398 return log_oom();
4399 if (r < 0) {
4400 log_syntax(unit, LOG_WARNING, filename, line, r,
4401 "Failed to extract device node and bandwidth from '%s', ignoring.", rvalue);
4402 return 0;
4403 }
4404 if (r == 0 || isempty(p)) {
4405 log_syntax(unit, LOG_WARNING, filename, line, 0,
4406 "Invalid device node or bandwidth specified in '%s', ignoring.", rvalue);
4407 return 0;
4408 }
4409
4410 r = unit_path_printf(userdata, path, &resolved);
4411 if (r < 0) {
4412 log_syntax(unit, LOG_WARNING, filename, line, r,
4413 "Failed to resolve unit specifiers in '%s', ignoring: %m", path);
4414 return 0;
4415 }
4416
4417 r = path_simplify_and_warn(resolved, 0, unit, filename, line, lvalue);
4418 if (r < 0)
4419 return 0;
4420
4421 if (streq("infinity", p))
4422 num = CGROUP_LIMIT_MAX;
4423 else {
4424 r = parse_size(p, 1000, &num);
4425 if (r < 0 || num <= 0) {
4426 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid IO limit '%s', ignoring.", p);
4427 return 0;
4428 }
4429 }
4430
4431 LIST_FOREACH(device_limits, t, c->io_device_limits)
4432 if (path_equal(resolved, t->path)) {
4433 l = t;
4434 break;
4435 }
4436
4437 if (!l) {
4438 l = new0(CGroupIODeviceLimit, 1);
4439 if (!l)
4440 return log_oom();
4441
4442 l->path = TAKE_PTR(resolved);
4443 for (CGroupIOLimitType i = 0; i < _CGROUP_IO_LIMIT_TYPE_MAX; i++)
4444 l->limits[i] = cgroup_io_limit_defaults[i];
4445
4446 LIST_PREPEND(device_limits, c->io_device_limits, l);
4447 }
4448
4449 l->limits[type] = num;
4450
4451 return 0;
4452 }
4453
4454 int config_parse_blockio_device_weight(
4455 const char *unit,
4456 const char *filename,
4457 unsigned line,
4458 const char *section,
4459 unsigned section_line,
4460 const char *lvalue,
4461 int ltype,
4462 const char *rvalue,
4463 void *data,
4464 void *userdata) {
4465
4466 _cleanup_free_ char *path = NULL, *resolved = NULL;
4467 CGroupBlockIODeviceWeight *w;
4468 CGroupContext *c = data;
4469 const char *p = ASSERT_PTR(rvalue);
4470 uint64_t u;
4471 int r;
4472
4473 assert(filename);
4474 assert(lvalue);
4475
4476 log_syntax(unit, LOG_WARNING, filename, line, 0,
4477 "Unit uses %s=; please use IO*= settings instead. Support for %s= will be removed soon.",
4478 lvalue, lvalue);
4479
4480 if (isempty(rvalue)) {
4481 while (c->blockio_device_weights)
4482 cgroup_context_free_blockio_device_weight(c, c->blockio_device_weights);
4483
4484 return 0;
4485 }
4486
4487 r = extract_first_word(&p, &path, NULL, EXTRACT_UNQUOTE);
4488 if (r == -ENOMEM)
4489 return log_oom();
4490 if (r < 0) {
4491 log_syntax(unit, LOG_WARNING, filename, line, r,
4492 "Failed to extract device node and weight from '%s', ignoring.", rvalue);
4493 return 0;
4494 }
4495 if (r == 0 || isempty(p)) {
4496 log_syntax(unit, LOG_WARNING, filename, line, 0,
4497 "Invalid device node or weight specified in '%s', ignoring.", rvalue);
4498 return 0;
4499 }
4500
4501 r = unit_path_printf(userdata, path, &resolved);
4502 if (r < 0) {
4503 log_syntax(unit, LOG_WARNING, filename, line, r,
4504 "Failed to resolve unit specifiers in '%s', ignoring: %m", path);
4505 return 0;
4506 }
4507
4508 r = path_simplify_and_warn(resolved, 0, unit, filename, line, lvalue);
4509 if (r < 0)
4510 return 0;
4511
4512 r = cg_blkio_weight_parse(p, &u);
4513 if (r < 0) {
4514 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid block IO weight '%s', ignoring: %m", p);
4515 return 0;
4516 }
4517
4518 assert(u != CGROUP_BLKIO_WEIGHT_INVALID);
4519
4520 w = new0(CGroupBlockIODeviceWeight, 1);
4521 if (!w)
4522 return log_oom();
4523
4524 w->path = TAKE_PTR(resolved);
4525 w->weight = u;
4526
4527 LIST_PREPEND(device_weights, c->blockio_device_weights, w);
4528 return 0;
4529 }
4530
4531 int config_parse_blockio_bandwidth(
4532 const char *unit,
4533 const char *filename,
4534 unsigned line,
4535 const char *section,
4536 unsigned section_line,
4537 const char *lvalue,
4538 int ltype,
4539 const char *rvalue,
4540 void *data,
4541 void *userdata) {
4542
4543 _cleanup_free_ char *path = NULL, *resolved = NULL;
4544 CGroupBlockIODeviceBandwidth *b = NULL;
4545 CGroupContext *c = data;
4546 const char *p = ASSERT_PTR(rvalue);
4547 uint64_t bytes;
4548 bool read;
4549 int r;
4550
4551 assert(filename);
4552 assert(lvalue);
4553
4554 log_syntax(unit, LOG_WARNING, filename, line, 0,
4555 "Unit uses %s=; please use IO*= settings instead. Support for %s= will be removed soon.",
4556 lvalue, lvalue);
4557
4558 read = streq("BlockIOReadBandwidth", lvalue);
4559
4560 if (isempty(rvalue)) {
4561 LIST_FOREACH(device_bandwidths, t, c->blockio_device_bandwidths) {
4562 t->rbps = CGROUP_LIMIT_MAX;
4563 t->wbps = CGROUP_LIMIT_MAX;
4564 }
4565 return 0;
4566 }
4567
4568 r = extract_first_word(&p, &path, NULL, EXTRACT_UNQUOTE);
4569 if (r == -ENOMEM)
4570 return log_oom();
4571 if (r < 0) {
4572 log_syntax(unit, LOG_WARNING, filename, line, r,
4573 "Failed to extract device node and bandwidth from '%s', ignoring.", rvalue);
4574 return 0;
4575 }
4576 if (r == 0 || isempty(p)) {
4577 log_syntax(unit, LOG_WARNING, filename, line, 0,
4578 "Invalid device node or bandwidth specified in '%s', ignoring.", rvalue);
4579 return 0;
4580 }
4581
4582 r = unit_path_printf(userdata, path, &resolved);
4583 if (r < 0) {
4584 log_syntax(unit, LOG_WARNING, filename, line, r,
4585 "Failed to resolve unit specifiers in '%s', ignoring: %m", path);
4586 return 0;
4587 }
4588
4589 r = path_simplify_and_warn(resolved, 0, unit, filename, line, lvalue);
4590 if (r < 0)
4591 return 0;
4592
4593 r = parse_size(p, 1000, &bytes);
4594 if (r < 0 || bytes <= 0) {
4595 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid Block IO Bandwidth '%s', ignoring.", p);
4596 return 0;
4597 }
4598
4599 LIST_FOREACH(device_bandwidths, t, c->blockio_device_bandwidths)
4600 if (path_equal(resolved, t->path)) {
4601 b = t;
4602 break;
4603 }
4604
4605 if (!b) {
4606 b = new0(CGroupBlockIODeviceBandwidth, 1);
4607 if (!b)
4608 return log_oom();
4609
4610 b->path = TAKE_PTR(resolved);
4611 b->rbps = CGROUP_LIMIT_MAX;
4612 b->wbps = CGROUP_LIMIT_MAX;
4613
4614 LIST_PREPEND(device_bandwidths, c->blockio_device_bandwidths, b);
4615 }
4616
4617 if (read)
4618 b->rbps = bytes;
4619 else
4620 b->wbps = bytes;
4621
4622 return 0;
4623 }
4624
4625 int config_parse_job_mode_isolate(
4626 const char *unit,
4627 const char *filename,
4628 unsigned line,
4629 const char *section,
4630 unsigned section_line,
4631 const char *lvalue,
4632 int ltype,
4633 const char *rvalue,
4634 void *data,
4635 void *userdata) {
4636
4637 JobMode *m = data;
4638 int r;
4639
4640 assert(filename);
4641 assert(lvalue);
4642 assert(rvalue);
4643
4644 r = parse_boolean(rvalue);
4645 if (r < 0) {
4646 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse boolean, ignoring: %s", rvalue);
4647 return 0;
4648 }
4649
4650 log_notice("%s is deprecated. Please use OnFailureJobMode= instead", lvalue);
4651
4652 *m = r ? JOB_ISOLATE : JOB_REPLACE;
4653 return 0;
4654 }
4655
4656 int config_parse_exec_directories(
4657 const char *unit,
4658 const char *filename,
4659 unsigned line,
4660 const char *section,
4661 unsigned section_line,
4662 const char *lvalue,
4663 int ltype,
4664 const char *rvalue,
4665 void *data,
4666 void *userdata) {
4667
4668 ExecDirectory *ed = ASSERT_PTR(data);
4669 const Unit *u = userdata;
4670 int r;
4671
4672 assert(filename);
4673 assert(lvalue);
4674 assert(rvalue);
4675
4676 if (isempty(rvalue)) {
4677 /* Empty assignment resets the list */
4678 exec_directory_done(ed);
4679 return 0;
4680 }
4681
4682 for (const char *p = rvalue;;) {
4683 _cleanup_free_ char *tuple = NULL;
4684
4685 r = extract_first_word(&p, &tuple, NULL, EXTRACT_UNQUOTE|EXTRACT_RETAIN_ESCAPE);
4686 if (r == -ENOMEM)
4687 return log_oom();
4688 if (r < 0) {
4689 log_syntax(unit, LOG_WARNING, filename, line, r,
4690 "Invalid syntax %s=%s, ignoring: %m", lvalue, rvalue);
4691 return 0;
4692 }
4693 if (r == 0)
4694 return 0;
4695
4696 _cleanup_free_ char *src = NULL, *dest = NULL;
4697 const char *q = tuple;
4698 r = extract_many_words(&q, ":", EXTRACT_CUNESCAPE|EXTRACT_UNESCAPE_SEPARATORS, &src, &dest, NULL);
4699 if (r == -ENOMEM)
4700 return log_oom();
4701 if (r <= 0) {
4702 log_syntax(unit, LOG_WARNING, filename, line, r,
4703 "Invalid syntax in %s=, ignoring: %s", lvalue, tuple);
4704 return 0;
4705 }
4706
4707 _cleanup_free_ char *sresolved = NULL;
4708 r = unit_path_printf(u, src, &sresolved);
4709 if (r < 0) {
4710 log_syntax(unit, LOG_WARNING, filename, line, r,
4711 "Failed to resolve unit specifiers in \"%s\", ignoring: %m", src);
4712 continue;
4713 }
4714
4715 r = path_simplify_and_warn(sresolved, PATH_CHECK_RELATIVE, unit, filename, line, lvalue);
4716 if (r < 0)
4717 continue;
4718
4719 if (path_startswith(sresolved, "private")) {
4720 log_syntax(unit, LOG_WARNING, filename, line, 0,
4721 "%s= path can't be 'private', ignoring assignment: %s", lvalue, tuple);
4722 continue;
4723 }
4724
4725 /* For State and Runtime directories we support an optional destination parameter, which
4726 * will be used to create a symlink to the source. */
4727 _cleanup_free_ char *dresolved = NULL;
4728 if (!isempty(dest)) {
4729 if (streq(lvalue, "ConfigurationDirectory")) {
4730 log_syntax(unit, LOG_WARNING, filename, line, 0,
4731 "Destination parameter is not supported for ConfigurationDirectory, ignoring: %s", tuple);
4732 continue;
4733 }
4734
4735 r = unit_path_printf(u, dest, &dresolved);
4736 if (r < 0) {
4737 log_syntax(unit, LOG_WARNING, filename, line, r,
4738 "Failed to resolve unit specifiers in \"%s\", ignoring: %m", dest);
4739 continue;
4740 }
4741
4742 r = path_simplify_and_warn(dresolved, PATH_CHECK_RELATIVE, unit, filename, line, lvalue);
4743 if (r < 0)
4744 continue;
4745 }
4746
4747 r = exec_directory_add(ed, sresolved, dresolved);
4748 if (r < 0)
4749 return log_oom();
4750 }
4751 }
4752
4753 int config_parse_set_credential(
4754 const char *unit,
4755 const char *filename,
4756 unsigned line,
4757 const char *section,
4758 unsigned section_line,
4759 const char *lvalue,
4760 int ltype,
4761 const char *rvalue,
4762 void *data,
4763 void *userdata) {
4764
4765 _cleanup_free_ char *word = NULL, *k = NULL;
4766 _cleanup_free_ void *d = NULL;
4767 ExecContext *context = ASSERT_PTR(data);
4768 ExecSetCredential *old;
4769 Unit *u = userdata;
4770 bool encrypted = ltype;
4771 const char *p = ASSERT_PTR(rvalue);
4772 size_t size;
4773 int r;
4774
4775 assert(filename);
4776 assert(lvalue);
4777
4778 if (isempty(rvalue)) {
4779 /* Empty assignment resets the list */
4780 context->set_credentials = hashmap_free(context->set_credentials);
4781 return 0;
4782 }
4783
4784 r = extract_first_word(&p, &word, ":", EXTRACT_DONT_COALESCE_SEPARATORS);
4785 if (r == -ENOMEM)
4786 return log_oom();
4787 if (r < 0) {
4788 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to extract credential name, ignoring: %s", rvalue);
4789 return 0;
4790 }
4791 if (r == 0 || isempty(p)) {
4792 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid syntax, ignoring: %s", rvalue);
4793 return 0;
4794 }
4795
4796 r = unit_cred_printf(u, word, &k);
4797 if (r < 0) {
4798 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in \"%s\", ignoring: %m", word);
4799 return 0;
4800 }
4801 if (!credential_name_valid(k)) {
4802 log_syntax(unit, LOG_WARNING, filename, line, 0, "Credential name \"%s\" not valid, ignoring.", k);
4803 return 0;
4804 }
4805
4806 if (encrypted) {
4807 r = unbase64mem_full(p, SIZE_MAX, true, &d, &size);
4808 if (r < 0) {
4809 log_syntax(unit, LOG_WARNING, filename, line, r, "Encrypted credential data not valid Base64 data, ignoring.");
4810 return 0;
4811 }
4812 } else {
4813 char *unescaped;
4814 ssize_t l;
4815
4816 /* We support escape codes here, so that users can insert trailing \n if they like */
4817 l = cunescape(p, UNESCAPE_ACCEPT_NUL, &unescaped);
4818 if (l < 0) {
4819 log_syntax(unit, LOG_WARNING, filename, line, l, "Can't unescape \"%s\", ignoring: %m", p);
4820 return 0;
4821 }
4822
4823 d = unescaped;
4824 size = l;
4825 }
4826
4827 old = hashmap_get(context->set_credentials, k);
4828 if (old) {
4829 free_and_replace(old->data, d);
4830 old->size = size;
4831 old->encrypted = encrypted;
4832 } else {
4833 _cleanup_(exec_set_credential_freep) ExecSetCredential *sc = NULL;
4834
4835 sc = new(ExecSetCredential, 1);
4836 if (!sc)
4837 return log_oom();
4838
4839 *sc = (ExecSetCredential) {
4840 .id = TAKE_PTR(k),
4841 .data = TAKE_PTR(d),
4842 .size = size,
4843 .encrypted = encrypted,
4844 };
4845
4846 r = hashmap_ensure_put(&context->set_credentials, &exec_set_credential_hash_ops, sc->id, sc);
4847 if (r == -ENOMEM)
4848 return log_oom();
4849 if (r < 0) {
4850 log_syntax(unit, LOG_WARNING, filename, line, r,
4851 "Duplicated credential value '%s', ignoring assignment: %s", sc->id, rvalue);
4852 return 0;
4853 }
4854
4855 TAKE_PTR(sc);
4856 }
4857
4858 return 0;
4859 }
4860
4861 int hashmap_put_credential(Hashmap **h, const char *id, const char *path, bool encrypted) {
4862 ExecLoadCredential *old;
4863 int r;
4864
4865 assert(h);
4866 assert(id);
4867 assert(path);
4868
4869 old = hashmap_get(*h, id);
4870 if (old) {
4871 r = free_and_strdup(&old->path, path);
4872 if (r < 0)
4873 return r;
4874
4875 old->encrypted = encrypted;
4876 } else {
4877 _cleanup_(exec_load_credential_freep) ExecLoadCredential *lc = NULL;
4878
4879 lc = new(ExecLoadCredential, 1);
4880 if (!lc)
4881 return log_oom();
4882
4883 *lc = (ExecLoadCredential) {
4884 .id = strdup(id),
4885 .path = strdup(path),
4886 .encrypted = encrypted,
4887 };
4888 if (!lc->id || !lc->path)
4889 return -ENOMEM;
4890
4891 r = hashmap_ensure_put(h, &exec_load_credential_hash_ops, lc->id, lc);
4892 if (r < 0)
4893 return r;
4894
4895 TAKE_PTR(lc);
4896 }
4897
4898 return 0;
4899 }
4900
4901 int config_parse_load_credential(
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 _cleanup_free_ char *word = NULL, *k = NULL, *q = NULL;
4914 ExecContext *context = ASSERT_PTR(data);
4915 bool encrypted = ltype;
4916 Unit *u = userdata;
4917 const char *p;
4918 int r;
4919
4920 assert(filename);
4921 assert(lvalue);
4922 assert(rvalue);
4923
4924 if (isempty(rvalue)) {
4925 /* Empty assignment resets the list */
4926 context->load_credentials = hashmap_free(context->load_credentials);
4927 return 0;
4928 }
4929
4930 p = rvalue;
4931 r = extract_first_word(&p, &word, ":", EXTRACT_DONT_COALESCE_SEPARATORS);
4932 if (r == -ENOMEM)
4933 return log_oom();
4934 if (r <= 0) {
4935 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid syntax, ignoring: %s", rvalue);
4936 return 0;
4937 }
4938
4939 r = unit_cred_printf(u, word, &k);
4940 if (r < 0) {
4941 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in \"%s\", ignoring: %m", word);
4942 return 0;
4943 }
4944 if (!credential_name_valid(k)) {
4945 log_syntax(unit, LOG_WARNING, filename, line, 0, "Credential name \"%s\" not valid, ignoring.", k);
4946 return 0;
4947 }
4948
4949 if (isempty(p)) {
4950 /* If only one field is specified take it as shortcut for inheriting a credential named
4951 * the same way from our parent */
4952 q = strdup(k);
4953 if (!q)
4954 return log_oom();
4955 } else {
4956 r = unit_path_printf(u, p, &q);
4957 if (r < 0) {
4958 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in \"%s\", ignoring: %m", p);
4959 return 0;
4960 }
4961 if (path_is_absolute(q) ? !path_is_normalized(q) : !credential_name_valid(q)) {
4962 log_syntax(unit, LOG_WARNING, filename, line, 0, "Credential source \"%s\" not valid, ignoring.", q);
4963 return 0;
4964 }
4965 }
4966
4967 r = hashmap_put_credential(&context->load_credentials, k, q, encrypted);
4968 if (r < 0)
4969 return log_error_errno(r, "Failed to store load credential '%s': %m", rvalue);
4970
4971 return 0;
4972 }
4973
4974 int config_parse_import_credential(
4975 const char *unit,
4976 const char *filename,
4977 unsigned line,
4978 const char *section,
4979 unsigned section_line,
4980 const char *lvalue,
4981 int ltype,
4982 const char *rvalue,
4983 void *data,
4984 void *userdata) {
4985
4986 _cleanup_free_ char *s = NULL;
4987 Set** import_credentials = ASSERT_PTR(data);
4988 Unit *u = userdata;
4989 int r;
4990
4991 assert(filename);
4992 assert(lvalue);
4993 assert(rvalue);
4994
4995 if (isempty(rvalue)) {
4996 /* Empty assignment resets the list */
4997 *import_credentials = set_free_free(*import_credentials);
4998 return 0;
4999 }
5000
5001 r = unit_cred_printf(u, rvalue, &s);
5002 if (r < 0) {
5003 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in \"%s\", ignoring: %m", s);
5004 return 0;
5005 }
5006 if (!credential_glob_valid(s)) {
5007 log_syntax(unit, LOG_WARNING, filename, line, 0, "Credential name or glob \"%s\" not valid, ignoring.", s);
5008 return 0;
5009 }
5010
5011 r = set_put_strdup(import_credentials, s);
5012 if (r < 0)
5013 return log_error_errno(r, "Failed to store credential name '%s': %m", rvalue);
5014
5015 return 0;
5016 }
5017
5018 int config_parse_set_status(
5019 const char *unit,
5020 const char *filename,
5021 unsigned line,
5022 const char *section,
5023 unsigned section_line,
5024 const char *lvalue,
5025 int ltype,
5026 const char *rvalue,
5027 void *data,
5028 void *userdata) {
5029
5030 ExitStatusSet *status_set = ASSERT_PTR(data);
5031 int r;
5032
5033 assert(filename);
5034 assert(lvalue);
5035 assert(rvalue);
5036
5037 /* Empty assignment resets the list */
5038 if (isempty(rvalue)) {
5039 exit_status_set_free(status_set);
5040 return 0;
5041 }
5042
5043 for (const char *p = rvalue;;) {
5044 _cleanup_free_ char *word = NULL;
5045 Bitmap *bitmap;
5046
5047 r = extract_first_word(&p, &word, NULL, 0);
5048 if (r == -ENOMEM)
5049 return log_oom();
5050 if (r < 0) {
5051 log_syntax(unit, LOG_WARNING, filename, line, r,
5052 "Failed to parse %s=%s, ignoring: %m", lvalue, rvalue);
5053 return 0;
5054 }
5055 if (r == 0)
5056 return 0;
5057
5058 /* We need to call exit_status_from_string() first, because we want
5059 * to parse numbers as exit statuses, not signals. */
5060
5061 r = exit_status_from_string(word);
5062 if (r >= 0) {
5063 assert(r >= 0 && r < 256);
5064 bitmap = &status_set->status;
5065 } else {
5066 r = signal_from_string(word);
5067 if (r < 0) {
5068 log_syntax(unit, LOG_WARNING, filename, line, r,
5069 "Failed to parse value, ignoring: %s", word);
5070 continue;
5071 }
5072 bitmap = &status_set->signal;
5073 }
5074
5075 r = bitmap_set(bitmap, r);
5076 if (r < 0)
5077 log_syntax(unit, LOG_WARNING, filename, line, r,
5078 "Failed to set signal or status %s, ignoring: %m", word);
5079 }
5080 }
5081
5082 int config_parse_namespace_path_strv(
5083 const char *unit,
5084 const char *filename,
5085 unsigned line,
5086 const char *section,
5087 unsigned section_line,
5088 const char *lvalue,
5089 int ltype,
5090 const char *rvalue,
5091 void *data,
5092 void *userdata) {
5093
5094 const Unit *u = userdata;
5095 char*** sv = ASSERT_PTR(data);
5096 int r;
5097
5098 assert(filename);
5099 assert(lvalue);
5100 assert(rvalue);
5101
5102 if (isempty(rvalue)) {
5103 /* Empty assignment resets the list */
5104 *sv = strv_free(*sv);
5105 return 0;
5106 }
5107
5108 for (const char *p = rvalue;;) {
5109 _cleanup_free_ char *word = NULL, *resolved = NULL, *joined = NULL;
5110 const char *w;
5111 bool ignore_enoent = false, shall_prefix = false;
5112
5113 r = extract_first_word(&p, &word, NULL, EXTRACT_UNQUOTE);
5114 if (r == -ENOMEM)
5115 return log_oom();
5116 if (r < 0) {
5117 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to extract first word, ignoring: %s", rvalue);
5118 return 0;
5119 }
5120 if (r == 0)
5121 break;
5122
5123 w = word;
5124 if (startswith(w, "-")) {
5125 ignore_enoent = true;
5126 w++;
5127 }
5128 if (startswith(w, "+")) {
5129 shall_prefix = true;
5130 w++;
5131 }
5132
5133 r = unit_path_printf(u, w, &resolved);
5134 if (r < 0) {
5135 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s: %m", w);
5136 continue;
5137 }
5138
5139 r = path_simplify_and_warn(resolved, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
5140 if (r < 0)
5141 continue;
5142
5143 joined = strjoin(ignore_enoent ? "-" : "",
5144 shall_prefix ? "+" : "",
5145 resolved);
5146
5147 r = strv_push(sv, joined);
5148 if (r < 0)
5149 return log_oom();
5150
5151 joined = NULL;
5152 }
5153
5154 return 0;
5155 }
5156
5157 int config_parse_temporary_filesystems(
5158 const char *unit,
5159 const char *filename,
5160 unsigned line,
5161 const char *section,
5162 unsigned section_line,
5163 const char *lvalue,
5164 int ltype,
5165 const char *rvalue,
5166 void *data,
5167 void *userdata) {
5168
5169 const Unit *u = userdata;
5170 ExecContext *c = ASSERT_PTR(data);
5171 int r;
5172
5173 assert(filename);
5174 assert(lvalue);
5175 assert(rvalue);
5176
5177 if (isempty(rvalue)) {
5178 /* Empty assignment resets the list */
5179 temporary_filesystem_free_many(c->temporary_filesystems, c->n_temporary_filesystems);
5180 c->temporary_filesystems = NULL;
5181 c->n_temporary_filesystems = 0;
5182 return 0;
5183 }
5184
5185 for (const char *p = rvalue;;) {
5186 _cleanup_free_ char *word = NULL, *path = NULL, *resolved = NULL;
5187 const char *w;
5188
5189 r = extract_first_word(&p, &word, NULL, EXTRACT_UNQUOTE);
5190 if (r == -ENOMEM)
5191 return log_oom();
5192 if (r < 0) {
5193 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to extract first word, ignoring: %s", rvalue);
5194 return 0;
5195 }
5196 if (r == 0)
5197 return 0;
5198
5199 w = word;
5200 r = extract_first_word(&w, &path, ":", EXTRACT_DONT_COALESCE_SEPARATORS);
5201 if (r == -ENOMEM)
5202 return log_oom();
5203 if (r < 0) {
5204 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to extract first word, ignoring: %s", word);
5205 continue;
5206 }
5207 if (r == 0) {
5208 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid syntax, ignoring: %s", word);
5209 continue;
5210 }
5211
5212 r = unit_path_printf(u, path, &resolved);
5213 if (r < 0) {
5214 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", path);
5215 continue;
5216 }
5217
5218 r = path_simplify_and_warn(resolved, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
5219 if (r < 0)
5220 continue;
5221
5222 r = temporary_filesystem_add(&c->temporary_filesystems, &c->n_temporary_filesystems, resolved, w);
5223 if (r < 0)
5224 return log_oom();
5225 }
5226 }
5227
5228 int config_parse_bind_paths(
5229 const char *unit,
5230 const char *filename,
5231 unsigned line,
5232 const char *section,
5233 unsigned section_line,
5234 const char *lvalue,
5235 int ltype,
5236 const char *rvalue,
5237 void *data,
5238 void *userdata) {
5239
5240 ExecContext *c = ASSERT_PTR(data);
5241 const Unit *u = userdata;
5242 int r;
5243
5244 assert(filename);
5245 assert(lvalue);
5246 assert(rvalue);
5247
5248 if (isempty(rvalue)) {
5249 /* Empty assignment resets the list */
5250 bind_mount_free_many(c->bind_mounts, c->n_bind_mounts);
5251 c->bind_mounts = NULL;
5252 c->n_bind_mounts = 0;
5253 return 0;
5254 }
5255
5256 for (const char *p = rvalue;;) {
5257 _cleanup_free_ char *source = NULL, *destination = NULL;
5258 _cleanup_free_ char *sresolved = NULL, *dresolved = NULL;
5259 char *s = NULL, *d = NULL;
5260 bool rbind = true, ignore_enoent = false;
5261
5262 r = extract_first_word(&p, &source, ":" WHITESPACE, EXTRACT_UNQUOTE|EXTRACT_DONT_COALESCE_SEPARATORS);
5263 if (r == -ENOMEM)
5264 return log_oom();
5265 if (r < 0) {
5266 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse %s, ignoring: %s", lvalue, rvalue);
5267 return 0;
5268 }
5269 if (r == 0)
5270 break;
5271
5272 r = unit_path_printf(u, source, &sresolved);
5273 if (r < 0) {
5274 log_syntax(unit, LOG_WARNING, filename, line, r,
5275 "Failed to resolve unit specifiers in \"%s\", ignoring: %m", source);
5276 continue;
5277 }
5278
5279 s = sresolved;
5280 if (s[0] == '-') {
5281 ignore_enoent = true;
5282 s++;
5283 }
5284
5285 r = path_simplify_and_warn(s, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
5286 if (r < 0)
5287 continue;
5288
5289 /* Optionally, the destination is specified. */
5290 if (p && p[-1] == ':') {
5291 r = extract_first_word(&p, &destination, ":" WHITESPACE, EXTRACT_UNQUOTE|EXTRACT_DONT_COALESCE_SEPARATORS);
5292 if (r == -ENOMEM)
5293 return log_oom();
5294 if (r < 0) {
5295 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse %s, ignoring: %s", lvalue, rvalue);
5296 return 0;
5297 }
5298 if (r == 0) {
5299 log_syntax(unit, LOG_WARNING, filename, line, 0, "Missing argument after ':', ignoring: %s", s);
5300 continue;
5301 }
5302
5303 r = unit_path_printf(u, destination, &dresolved);
5304 if (r < 0) {
5305 log_syntax(unit, LOG_WARNING, filename, line, r,
5306 "Failed to resolve specifiers in \"%s\", ignoring: %m", destination);
5307 continue;
5308 }
5309
5310 r = path_simplify_and_warn(dresolved, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
5311 if (r < 0)
5312 continue;
5313
5314 d = dresolved;
5315
5316 /* Optionally, there's also a short option string specified */
5317 if (p && p[-1] == ':') {
5318 _cleanup_free_ char *options = NULL;
5319
5320 r = extract_first_word(&p, &options, NULL, EXTRACT_UNQUOTE);
5321 if (r == -ENOMEM)
5322 return log_oom();
5323 if (r < 0) {
5324 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse %s=, ignoring: %s", lvalue, rvalue);
5325 return 0;
5326 }
5327
5328 if (isempty(options) || streq(options, "rbind"))
5329 rbind = true;
5330 else if (streq(options, "norbind"))
5331 rbind = false;
5332 else {
5333 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid option string, ignoring setting: %s", options);
5334 continue;
5335 }
5336 }
5337 } else
5338 d = s;
5339
5340 r = bind_mount_add(&c->bind_mounts, &c->n_bind_mounts,
5341 &(BindMount) {
5342 .source = s,
5343 .destination = d,
5344 .read_only = !!strstr(lvalue, "ReadOnly"),
5345 .recursive = rbind,
5346 .ignore_enoent = ignore_enoent,
5347 });
5348 if (r < 0)
5349 return log_oom();
5350 }
5351
5352 return 0;
5353 }
5354
5355 int config_parse_mount_images(
5356 const char *unit,
5357 const char *filename,
5358 unsigned line,
5359 const char *section,
5360 unsigned section_line,
5361 const char *lvalue,
5362 int ltype,
5363 const char *rvalue,
5364 void *data,
5365 void *userdata) {
5366
5367 ExecContext *c = ASSERT_PTR(data);
5368 const Unit *u = userdata;
5369 int r;
5370
5371 assert(filename);
5372 assert(lvalue);
5373 assert(rvalue);
5374
5375 if (isempty(rvalue)) {
5376 /* Empty assignment resets the list */
5377 c->mount_images = mount_image_free_many(c->mount_images, &c->n_mount_images);
5378 return 0;
5379 }
5380
5381 for (const char *p = rvalue;;) {
5382 _cleanup_(mount_options_free_allp) MountOptions *options = NULL;
5383 _cleanup_free_ char *first = NULL, *second = NULL, *tuple = NULL;
5384 _cleanup_free_ char *sresolved = NULL, *dresolved = NULL;
5385 const char *q = NULL;
5386 char *s = NULL;
5387 bool permissive = false;
5388
5389 r = extract_first_word(&p, &tuple, NULL, EXTRACT_UNQUOTE|EXTRACT_RETAIN_ESCAPE);
5390 if (r == -ENOMEM)
5391 return log_oom();
5392 if (r < 0) {
5393 log_syntax(unit, LOG_WARNING, filename, line, r,
5394 "Invalid syntax %s=%s, ignoring: %m", lvalue, rvalue);
5395 return 0;
5396 }
5397 if (r == 0)
5398 return 0;
5399
5400 q = tuple;
5401 r = extract_many_words(&q, ":", EXTRACT_CUNESCAPE|EXTRACT_UNESCAPE_SEPARATORS, &first, &second, NULL);
5402 if (r == -ENOMEM)
5403 return log_oom();
5404 if (r < 0) {
5405 log_syntax(unit, LOG_WARNING, filename, line, r,
5406 "Invalid syntax in %s=, ignoring: %s", lvalue, tuple);
5407 return 0;
5408 }
5409 if (r == 0)
5410 continue;
5411
5412 s = first;
5413 if (s[0] == '-') {
5414 permissive = true;
5415 s++;
5416 }
5417
5418 r = unit_path_printf(u, s, &sresolved);
5419 if (r < 0) {
5420 log_syntax(unit, LOG_WARNING, filename, line, r,
5421 "Failed to resolve unit specifiers in \"%s\", ignoring: %m", s);
5422 continue;
5423 }
5424
5425 r = path_simplify_and_warn(sresolved, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
5426 if (r < 0)
5427 continue;
5428
5429 if (isempty(second)) {
5430 log_syntax(unit, LOG_WARNING, filename, line, 0, "Missing destination in %s, ignoring: %s", lvalue, rvalue);
5431 continue;
5432 }
5433
5434 r = unit_path_printf(u, second, &dresolved);
5435 if (r < 0) {
5436 log_syntax(unit, LOG_WARNING, filename, line, r,
5437 "Failed to resolve specifiers in \"%s\", ignoring: %m", second);
5438 continue;
5439 }
5440
5441 r = path_simplify_and_warn(dresolved, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
5442 if (r < 0)
5443 continue;
5444
5445 for (;;) {
5446 _cleanup_free_ char *partition = NULL, *mount_options = NULL, *mount_options_resolved = NULL;
5447 MountOptions *o = NULL;
5448 PartitionDesignator partition_designator;
5449
5450 r = extract_many_words(&q, ":", EXTRACT_CUNESCAPE|EXTRACT_UNESCAPE_SEPARATORS, &partition, &mount_options, NULL);
5451 if (r == -ENOMEM)
5452 return log_oom();
5453 if (r < 0) {
5454 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid syntax, ignoring: %s", q);
5455 return 0;
5456 }
5457 if (r == 0)
5458 break;
5459 /* Single set of options, applying to the root partition/single filesystem */
5460 if (r == 1) {
5461 r = unit_full_printf(u, partition, &mount_options_resolved);
5462 if (r < 0) {
5463 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", first);
5464 continue;
5465 }
5466
5467 o = new(MountOptions, 1);
5468 if (!o)
5469 return log_oom();
5470 *o = (MountOptions) {
5471 .partition_designator = PARTITION_ROOT,
5472 .options = TAKE_PTR(mount_options_resolved),
5473 };
5474 LIST_APPEND(mount_options, options, o);
5475
5476 break;
5477 }
5478
5479 partition_designator = partition_designator_from_string(partition);
5480 if (partition_designator < 0) {
5481 log_syntax(unit, LOG_WARNING, filename, line, partition_designator,
5482 "Invalid partition name %s, ignoring", partition);
5483 continue;
5484 }
5485 r = unit_full_printf(u, mount_options, &mount_options_resolved);
5486 if (r < 0) {
5487 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", mount_options);
5488 continue;
5489 }
5490
5491 o = new(MountOptions, 1);
5492 if (!o)
5493 return log_oom();
5494 *o = (MountOptions) {
5495 .partition_designator = partition_designator,
5496 .options = TAKE_PTR(mount_options_resolved),
5497 };
5498 LIST_APPEND(mount_options, options, o);
5499 }
5500
5501 r = mount_image_add(&c->mount_images, &c->n_mount_images,
5502 &(MountImage) {
5503 .source = sresolved,
5504 .destination = dresolved,
5505 .mount_options = options,
5506 .ignore_enoent = permissive,
5507 .type = MOUNT_IMAGE_DISCRETE,
5508 });
5509 if (r < 0)
5510 return log_oom();
5511 }
5512 }
5513
5514 int config_parse_extension_images(
5515 const char *unit,
5516 const char *filename,
5517 unsigned line,
5518 const char *section,
5519 unsigned section_line,
5520 const char *lvalue,
5521 int ltype,
5522 const char *rvalue,
5523 void *data,
5524 void *userdata) {
5525
5526 ExecContext *c = ASSERT_PTR(data);
5527 const Unit *u = userdata;
5528 int r;
5529
5530 assert(filename);
5531 assert(lvalue);
5532 assert(rvalue);
5533
5534 if (isempty(rvalue)) {
5535 /* Empty assignment resets the list */
5536 c->extension_images = mount_image_free_many(c->extension_images, &c->n_extension_images);
5537 return 0;
5538 }
5539
5540 for (const char *p = rvalue;;) {
5541 _cleanup_free_ char *source = NULL, *tuple = NULL, *sresolved = NULL;
5542 _cleanup_(mount_options_free_allp) MountOptions *options = NULL;
5543 bool permissive = false;
5544 const char *q = NULL;
5545 char *s = NULL;
5546
5547 r = extract_first_word(&p, &tuple, NULL, EXTRACT_UNQUOTE|EXTRACT_RETAIN_ESCAPE);
5548 if (r == -ENOMEM)
5549 return log_oom();
5550 if (r < 0) {
5551 log_syntax(unit, LOG_WARNING, filename, line, r,
5552 "Invalid syntax %s=%s, ignoring: %m", lvalue, rvalue);
5553 return 0;
5554 }
5555 if (r == 0)
5556 return 0;
5557
5558 q = tuple;
5559 r = extract_first_word(&q, &source, ":", EXTRACT_CUNESCAPE|EXTRACT_UNESCAPE_SEPARATORS);
5560 if (r == -ENOMEM)
5561 return log_oom();
5562 if (r < 0) {
5563 log_syntax(unit, LOG_WARNING, filename, line, r,
5564 "Invalid syntax in %s=, ignoring: %s", lvalue, tuple);
5565 return 0;
5566 }
5567 if (r == 0)
5568 continue;
5569
5570 s = source;
5571 if (s[0] == '-') {
5572 permissive = true;
5573 s++;
5574 }
5575
5576 r = unit_path_printf(u, s, &sresolved);
5577 if (r < 0) {
5578 log_syntax(unit, LOG_WARNING, filename, line, r,
5579 "Failed to resolve unit specifiers in \"%s\", ignoring: %m", s);
5580 continue;
5581 }
5582
5583 r = path_simplify_and_warn(sresolved, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
5584 if (r < 0)
5585 continue;
5586
5587 for (;;) {
5588 _cleanup_free_ char *partition = NULL, *mount_options = NULL, *mount_options_resolved = NULL;
5589 MountOptions *o = NULL;
5590 PartitionDesignator partition_designator;
5591
5592 r = extract_many_words(&q, ":", EXTRACT_CUNESCAPE|EXTRACT_UNESCAPE_SEPARATORS, &partition, &mount_options, NULL);
5593 if (r == -ENOMEM)
5594 return log_oom();
5595 if (r < 0) {
5596 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid syntax, ignoring: %s", q);
5597 return 0;
5598 }
5599 if (r == 0)
5600 break;
5601 /* Single set of options, applying to the root partition/single filesystem */
5602 if (r == 1) {
5603 r = unit_full_printf(u, partition, &mount_options_resolved);
5604 if (r < 0) {
5605 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", partition);
5606 continue;
5607 }
5608
5609 o = new(MountOptions, 1);
5610 if (!o)
5611 return log_oom();
5612 *o = (MountOptions) {
5613 .partition_designator = PARTITION_ROOT,
5614 .options = TAKE_PTR(mount_options_resolved),
5615 };
5616 LIST_APPEND(mount_options, options, o);
5617
5618 break;
5619 }
5620
5621 partition_designator = partition_designator_from_string(partition);
5622 if (partition_designator < 0) {
5623 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid partition name %s, ignoring", partition);
5624 continue;
5625 }
5626 r = unit_full_printf(u, mount_options, &mount_options_resolved);
5627 if (r < 0) {
5628 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in %s, ignoring: %m", mount_options);
5629 continue;
5630 }
5631
5632 o = new(MountOptions, 1);
5633 if (!o)
5634 return log_oom();
5635 *o = (MountOptions) {
5636 .partition_designator = partition_designator,
5637 .options = TAKE_PTR(mount_options_resolved),
5638 };
5639 LIST_APPEND(mount_options, options, o);
5640 }
5641
5642 r = mount_image_add(&c->extension_images, &c->n_extension_images,
5643 &(MountImage) {
5644 .source = sresolved,
5645 .mount_options = options,
5646 .ignore_enoent = permissive,
5647 .type = MOUNT_IMAGE_EXTENSION,
5648 });
5649 if (r < 0)
5650 return log_oom();
5651 }
5652 }
5653
5654 int config_parse_job_timeout_sec(
5655 const char* unit,
5656 const char *filename,
5657 unsigned line,
5658 const char *section,
5659 unsigned section_line,
5660 const char *lvalue,
5661 int ltype,
5662 const char *rvalue,
5663 void *data,
5664 void *userdata) {
5665
5666 Unit *u = ASSERT_PTR(data);
5667 usec_t usec;
5668 int r;
5669
5670 assert(filename);
5671 assert(lvalue);
5672 assert(rvalue);
5673
5674 r = parse_sec_fix_0(rvalue, &usec);
5675 if (r < 0) {
5676 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse JobTimeoutSec= parameter, ignoring: %s", rvalue);
5677 return 0;
5678 }
5679
5680 /* If the user explicitly changed JobTimeoutSec= also change JobRunningTimeoutSec=, for compatibility with old
5681 * versions. If JobRunningTimeoutSec= was explicitly set, avoid this however as whatever the user picked should
5682 * count. */
5683
5684 if (!u->job_running_timeout_set)
5685 u->job_running_timeout = usec;
5686
5687 u->job_timeout = usec;
5688
5689 return 0;
5690 }
5691
5692 int config_parse_job_running_timeout_sec(
5693 const char* unit,
5694 const char *filename,
5695 unsigned line,
5696 const char *section,
5697 unsigned section_line,
5698 const char *lvalue,
5699 int ltype,
5700 const char *rvalue,
5701 void *data,
5702 void *userdata) {
5703
5704 Unit *u = ASSERT_PTR(data);
5705 usec_t usec;
5706 int r;
5707
5708 assert(filename);
5709 assert(lvalue);
5710 assert(rvalue);
5711
5712 r = parse_sec_fix_0(rvalue, &usec);
5713 if (r < 0) {
5714 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse JobRunningTimeoutSec= parameter, ignoring: %s", rvalue);
5715 return 0;
5716 }
5717
5718 u->job_running_timeout = usec;
5719 u->job_running_timeout_set = true;
5720
5721 return 0;
5722 }
5723
5724 int config_parse_emergency_action(
5725 const char* unit,
5726 const char *filename,
5727 unsigned line,
5728 const char *section,
5729 unsigned section_line,
5730 const char *lvalue,
5731 int ltype,
5732 const char *rvalue,
5733 void *data,
5734 void *userdata) {
5735
5736 EmergencyAction *x = ASSERT_PTR(data);
5737 RuntimeScope runtime_scope;
5738 int r;
5739
5740 assert(filename);
5741 assert(lvalue);
5742 assert(rvalue);
5743
5744 /* If we have a unit determine the scope based on it */
5745 if (unit)
5746 runtime_scope = ((Unit*) ASSERT_PTR(userdata))->manager->runtime_scope;
5747 else
5748 runtime_scope = ltype; /* otherwise, assume the scope is passed in via ltype */
5749
5750 r = parse_emergency_action(rvalue, runtime_scope, x);
5751 if (r < 0) {
5752 if (r == -EOPNOTSUPP)
5753 log_syntax(unit, LOG_WARNING, filename, line, r,
5754 "%s= specified as %s mode action, ignoring: %s",
5755 lvalue, runtime_scope_to_string(runtime_scope), rvalue);
5756 else
5757 log_syntax(unit, LOG_WARNING, filename, line, r,
5758 "Failed to parse %s=, ignoring: %s", lvalue, rvalue);
5759 return 0;
5760 }
5761
5762 return 0;
5763 }
5764
5765 int config_parse_pid_file(
5766 const char *unit,
5767 const char *filename,
5768 unsigned line,
5769 const char *section,
5770 unsigned section_line,
5771 const char *lvalue,
5772 int ltype,
5773 const char *rvalue,
5774 void *data,
5775 void *userdata) {
5776
5777 _cleanup_free_ char *k = NULL, *n = NULL;
5778 const Unit *u = ASSERT_PTR(userdata);
5779 char **s = data;
5780 int r;
5781
5782 assert(filename);
5783 assert(lvalue);
5784 assert(rvalue);
5785
5786 if (isempty(rvalue)) {
5787 /* An empty assignment removes already set value. */
5788 *s = mfree(*s);
5789 return 0;
5790 }
5791
5792 r = unit_path_printf(u, rvalue, &k);
5793 if (r < 0) {
5794 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue);
5795 return 0;
5796 }
5797
5798 /* If this is a relative path make it absolute by prefixing the /run */
5799 n = path_make_absolute(k, u->manager->prefix[EXEC_DIRECTORY_RUNTIME]);
5800 if (!n)
5801 return log_oom();
5802
5803 /* Check that the result is a sensible path */
5804 r = path_simplify_and_warn(n, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
5805 if (r < 0)
5806 return r;
5807
5808 r = patch_var_run(unit, filename, line, lvalue, &n);
5809 if (r < 0)
5810 return r;
5811
5812 free_and_replace(*s, n);
5813 return 0;
5814 }
5815
5816 int config_parse_exit_status(
5817 const char *unit,
5818 const char *filename,
5819 unsigned line,
5820 const char *section,
5821 unsigned section_line,
5822 const char *lvalue,
5823 int ltype,
5824 const char *rvalue,
5825 void *data,
5826 void *userdata) {
5827
5828 int *exit_status = data, r;
5829 uint8_t u;
5830
5831 assert(filename);
5832 assert(lvalue);
5833 assert(rvalue);
5834 assert(exit_status);
5835
5836 if (isempty(rvalue)) {
5837 *exit_status = -1;
5838 return 0;
5839 }
5840
5841 r = safe_atou8(rvalue, &u);
5842 if (r < 0) {
5843 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse exit status '%s', ignoring: %m", rvalue);
5844 return 0;
5845 }
5846
5847 *exit_status = u;
5848 return 0;
5849 }
5850
5851 int config_parse_disable_controllers(
5852 const char *unit,
5853 const char *filename,
5854 unsigned line,
5855 const char *section,
5856 unsigned section_line,
5857 const char *lvalue,
5858 int ltype,
5859 const char *rvalue,
5860 void *data,
5861 void *userdata) {
5862
5863 int r;
5864 CGroupContext *c = data;
5865 CGroupMask disabled_mask;
5866
5867 /* 1. If empty, make all controllers eligible for use again.
5868 * 2. If non-empty, merge all listed controllers, space separated. */
5869
5870 if (isempty(rvalue)) {
5871 c->disable_controllers = 0;
5872 return 0;
5873 }
5874
5875 r = cg_mask_from_string(rvalue, &disabled_mask);
5876 if (r < 0 || disabled_mask <= 0) {
5877 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid cgroup string: %s, ignoring", rvalue);
5878 return 0;
5879 }
5880
5881 c->disable_controllers |= disabled_mask;
5882
5883 return 0;
5884 }
5885
5886 int config_parse_ip_filter_bpf_progs(
5887 const char *unit,
5888 const char *filename,
5889 unsigned line,
5890 const char *section,
5891 unsigned section_line,
5892 const char *lvalue,
5893 int ltype,
5894 const char *rvalue,
5895 void *data,
5896 void *userdata) {
5897
5898 _cleanup_free_ char *resolved = NULL;
5899 const Unit *u = userdata;
5900 char ***paths = ASSERT_PTR(data);
5901 int r;
5902
5903 assert(filename);
5904 assert(lvalue);
5905 assert(rvalue);
5906
5907 if (isempty(rvalue)) {
5908 *paths = strv_free(*paths);
5909 return 0;
5910 }
5911
5912 r = unit_path_printf(u, rvalue, &resolved);
5913 if (r < 0) {
5914 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue);
5915 return 0;
5916 }
5917
5918 r = path_simplify_and_warn(resolved, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
5919 if (r < 0)
5920 return 0;
5921
5922 if (strv_contains(*paths, resolved))
5923 return 0;
5924
5925 r = strv_extend(paths, resolved);
5926 if (r < 0)
5927 return log_oom();
5928
5929 r = bpf_firewall_supported();
5930 if (r < 0)
5931 return r;
5932 if (r != BPF_FIREWALL_SUPPORTED_WITH_MULTI) {
5933 static bool warned = false;
5934
5935 log_full(warned ? LOG_DEBUG : LOG_WARNING,
5936 "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"
5937 "Starting this unit will fail! (This warning is only shown for the first loaded unit using IP firewalling.)", filename, line, lvalue, rvalue);
5938
5939 warned = true;
5940 }
5941
5942 return 0;
5943 }
5944
5945 int config_parse_bpf_foreign_program(
5946 const char *unit,
5947 const char *filename,
5948 unsigned line,
5949 const char *section,
5950 unsigned section_line,
5951 const char *lvalue,
5952 int ltype,
5953 const char *rvalue,
5954 void *data,
5955 void *userdata) {
5956 _cleanup_free_ char *resolved = NULL, *word = NULL;
5957 CGroupContext *c = data;
5958 const char *p = ASSERT_PTR(rvalue);
5959 Unit *u = userdata;
5960 int attach_type, r;
5961
5962 assert(filename);
5963 assert(lvalue);
5964
5965 if (isempty(rvalue)) {
5966 while (c->bpf_foreign_programs)
5967 cgroup_context_remove_bpf_foreign_program(c, c->bpf_foreign_programs);
5968
5969 return 0;
5970 }
5971
5972 r = extract_first_word(&p, &word, ":", 0);
5973 if (r == -ENOMEM)
5974 return log_oom();
5975 if (r < 0) {
5976 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse foreign BPF program, ignoring: %s", rvalue);
5977 return 0;
5978 }
5979 if (r == 0 || isempty(p)) {
5980 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid syntax in %s=, ignoring: %s", lvalue, rvalue);
5981 return 0;
5982 }
5983
5984 attach_type = bpf_cgroup_attach_type_from_string(word);
5985 if (attach_type < 0) {
5986 log_syntax(unit, LOG_WARNING, filename, line, 0, "Unknown BPF attach type=%s, ignoring: %s", word, rvalue);
5987 return 0;
5988 }
5989
5990 r = unit_path_printf(u, p, &resolved);
5991 if (r < 0) {
5992 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %s", p, rvalue);
5993 return 0;
5994 }
5995
5996 r = path_simplify_and_warn(resolved, PATH_CHECK_ABSOLUTE, unit, filename, line, lvalue);
5997 if (r < 0)
5998 return 0;
5999
6000 r = cgroup_context_add_bpf_foreign_program(c, attach_type, resolved);
6001 if (r < 0)
6002 return log_error_errno(r, "Failed to add foreign BPF program to cgroup context: %m");
6003
6004 return 0;
6005 }
6006
6007 int config_parse_cgroup_socket_bind(
6008 const char *unit,
6009 const char *filename,
6010 unsigned line,
6011 const char *section,
6012 unsigned section_line,
6013 const char *lvalue,
6014 int ltype,
6015 const char *rvalue,
6016 void *data,
6017 void *userdata) {
6018 _cleanup_free_ CGroupSocketBindItem *item = NULL;
6019 CGroupSocketBindItem **head = data;
6020 uint16_t nr_ports, port_min;
6021 int af, ip_protocol, r;
6022
6023 if (isempty(rvalue)) {
6024 cgroup_context_remove_socket_bind(head);
6025 return 0;
6026 }
6027
6028 r = parse_socket_bind_item(rvalue, &af, &ip_protocol, &nr_ports, &port_min);
6029 if (r == -ENOMEM)
6030 return log_oom();
6031 if (r < 0) {
6032 log_syntax(unit, LOG_WARNING, filename, line, r,
6033 "Unable to parse %s= assignment, ignoring: %s", lvalue, rvalue);
6034 return 0;
6035 }
6036
6037 item = new(CGroupSocketBindItem, 1);
6038 if (!item)
6039 return log_oom();
6040 *item = (CGroupSocketBindItem) {
6041 .address_family = af,
6042 .ip_protocol = ip_protocol,
6043 .nr_ports = nr_ports,
6044 .port_min = port_min,
6045 };
6046
6047 LIST_PREPEND(socket_bind_items, *head, TAKE_PTR(item));
6048
6049 return 0;
6050 }
6051
6052 int config_parse_restrict_network_interfaces(
6053 const char *unit,
6054 const char *filename,
6055 unsigned line,
6056 const char *section,
6057 unsigned section_line,
6058 const char *lvalue,
6059 int ltype,
6060 const char *rvalue,
6061 void *data,
6062 void *userdata) {
6063 CGroupContext *c = ASSERT_PTR(data);
6064 bool is_allow_rule = true;
6065 int r;
6066
6067 assert(filename);
6068 assert(lvalue);
6069 assert(rvalue);
6070
6071 if (isempty(rvalue)) {
6072 /* Empty assignment resets the list */
6073 c->restrict_network_interfaces = set_free_free(c->restrict_network_interfaces);
6074 return 0;
6075 }
6076
6077 if (rvalue[0] == '~') {
6078 is_allow_rule = false;
6079 rvalue++;
6080 }
6081
6082 if (set_isempty(c->restrict_network_interfaces))
6083 /* Only initialize this when creating the set */
6084 c->restrict_network_interfaces_is_allow_list = is_allow_rule;
6085
6086 for (const char *p = rvalue;;) {
6087 _cleanup_free_ char *word = NULL;
6088
6089 r = extract_first_word(&p, &word, NULL, EXTRACT_UNQUOTE);
6090 if (r == 0)
6091 break;
6092 if (r == -ENOMEM)
6093 return log_oom();
6094 if (r < 0) {
6095 log_syntax(unit, LOG_WARNING, filename, line, r,
6096 "Trailing garbage in %s, ignoring: %s", lvalue, rvalue);
6097 break;
6098 }
6099
6100 if (!ifname_valid_full(word, IFNAME_VALID_ALTERNATIVE)) {
6101 log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid interface name, ignoring: %s", word);
6102 continue;
6103 }
6104
6105 if (c->restrict_network_interfaces_is_allow_list != is_allow_rule)
6106 free(set_remove(c->restrict_network_interfaces, word));
6107 else {
6108 r = set_put_strdup(&c->restrict_network_interfaces, word);
6109 if (r < 0)
6110 return log_oom();
6111 }
6112 }
6113
6114 return 0;
6115 }
6116
6117 int config_parse_mount_node(
6118 const char *unit,
6119 const char *filename,
6120 unsigned line,
6121 const char *section,
6122 unsigned section_line,
6123 const char *lvalue,
6124 int ltype,
6125 const char *rvalue,
6126 void *data,
6127 void *userdata) {
6128
6129 const Unit *u = ASSERT_PTR(userdata);
6130 _cleanup_free_ char *resolved = NULL, *path = NULL;
6131 int r;
6132
6133 assert(filename);
6134 assert(lvalue);
6135 assert(rvalue);
6136
6137 r = unit_full_printf(u, rvalue, &resolved);
6138 if (r < 0) {
6139 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to resolve unit specifiers in '%s', ignoring: %m", rvalue);
6140 return 0;
6141 }
6142
6143 path = fstab_node_to_udev_node(resolved);
6144 if (!path)
6145 return log_oom();
6146
6147 /* The source passed is not necessarily something we understand, and we pass it as-is to mount/swapon,
6148 * so path_is_valid is not used. But let's check for basic sanety, i.e. if the source is longer than
6149 * PATH_MAX, you're likely doing something wrong. */
6150 if (strlen(path) >= PATH_MAX) {
6151 log_syntax(unit, LOG_WARNING, filename, line, 0, "Resolved mount path '%s' too long, ignoring.", path);
6152 return 0;
6153 }
6154
6155 return config_parse_string(unit, filename, line, section, section_line, lvalue, ltype, path, data, userdata);
6156 }
6157
6158 static int merge_by_names(Unit *u, Set *names, const char *id) {
6159 char *k;
6160 int r;
6161
6162 assert(u);
6163
6164 /* Let's try to add in all names that are aliases of this unit */
6165 while ((k = set_steal_first(names))) {
6166 _cleanup_free_ _unused_ char *free_k = k;
6167
6168 /* First try to merge in the other name into our unit */
6169 r = unit_merge_by_name(u, k);
6170 if (r < 0) {
6171 Unit *other;
6172
6173 /* Hmm, we couldn't merge the other unit into ours? Then let's try it the other way
6174 * round. */
6175
6176 other = manager_get_unit(u->manager, k);
6177 if (!other)
6178 return r; /* return previous failure */
6179
6180 r = unit_merge(other, u);
6181 if (r < 0)
6182 return r;
6183
6184 return merge_by_names(other, names, NULL);
6185 }
6186
6187 if (streq_ptr(id, k))
6188 unit_choose_id(u, id);
6189 }
6190
6191 return 0;
6192 }
6193
6194 int unit_load_fragment(Unit *u) {
6195 const char *fragment;
6196 _cleanup_set_free_free_ Set *names = NULL;
6197 int r;
6198
6199 assert(u);
6200 assert(u->load_state == UNIT_STUB);
6201 assert(u->id);
6202
6203 if (u->transient) {
6204 u->access_selinux_context = mfree(u->access_selinux_context);
6205 u->load_state = UNIT_LOADED;
6206 return 0;
6207 }
6208
6209 /* Possibly rebuild the fragment map to catch new units */
6210 r = unit_file_build_name_map(&u->manager->lookup_paths,
6211 &u->manager->unit_cache_timestamp_hash,
6212 &u->manager->unit_id_map,
6213 &u->manager->unit_name_map,
6214 &u->manager->unit_path_cache);
6215 if (r < 0)
6216 return log_error_errno(r, "Failed to rebuild name map: %m");
6217
6218 r = unit_file_find_fragment(u->manager->unit_id_map,
6219 u->manager->unit_name_map,
6220 u->id,
6221 &fragment,
6222 &names);
6223 if (r < 0 && r != -ENOENT)
6224 return r;
6225
6226 if (fragment) {
6227 /* Open the file, check if this is a mask, otherwise read. */
6228 _cleanup_fclose_ FILE *f = NULL;
6229 struct stat st;
6230
6231 /* Try to open the file name. A symlink is OK, for example for linked files or masks. We
6232 * expect that all symlinks within the lookup paths have been already resolved, but we don't
6233 * verify this here. */
6234 f = fopen(fragment, "re");
6235 if (!f)
6236 return log_unit_notice_errno(u, errno, "Failed to open %s: %m", fragment);
6237
6238 if (fstat(fileno(f), &st) < 0)
6239 return -errno;
6240
6241 r = free_and_strdup(&u->fragment_path, fragment);
6242 if (r < 0)
6243 return r;
6244
6245 if (null_or_empty(&st)) {
6246 /* Unit file is masked */
6247
6248 u->load_state = u->perpetual ? UNIT_LOADED : UNIT_MASKED; /* don't allow perpetual units to ever be masked */
6249 u->fragment_mtime = 0;
6250 u->access_selinux_context = mfree(u->access_selinux_context);
6251 } else {
6252 #if HAVE_SELINUX
6253 if (mac_selinux_use()) {
6254 _cleanup_freecon_ char *selcon = NULL;
6255
6256 /* Cache the SELinux context of the unit file here. We'll make use of when checking access permissions to loaded units */
6257 r = fgetfilecon_raw(fileno(f), &selcon);
6258 if (r < 0)
6259 log_unit_warning_errno(u, r, "Failed to read SELinux context of '%s', ignoring: %m", fragment);
6260
6261 r = free_and_strdup(&u->access_selinux_context, selcon);
6262 if (r < 0)
6263 return r;
6264 } else
6265 #endif
6266 u->access_selinux_context = mfree(u->access_selinux_context);
6267
6268 u->load_state = UNIT_LOADED;
6269 u->fragment_mtime = timespec_load(&st.st_mtim);
6270
6271 /* Now, parse the file contents */
6272 r = config_parse(u->id, fragment, f,
6273 UNIT_VTABLE(u)->sections,
6274 config_item_perf_lookup, load_fragment_gperf_lookup,
6275 0,
6276 u,
6277 NULL);
6278 if (r == -ENOEXEC)
6279 log_unit_notice_errno(u, r, "Unit configuration has fatal error, unit will not be started.");
6280 if (r < 0)
6281 return r;
6282 }
6283 }
6284
6285 /* Call merge_by_names with the name derived from the fragment path as the preferred name.
6286 *
6287 * We do the merge dance here because for some unit types, the unit might have aliases which are not
6288 * declared in the file system. In particular, this is true (and frequent) for device and swap units.
6289 */
6290 const char *id = u->id;
6291 _cleanup_free_ char *filename = NULL, *free_id = NULL;
6292
6293 if (fragment) {
6294 r = path_extract_filename(fragment, &filename);
6295 if (r < 0)
6296 return log_debug_errno(r, "Failed to extract filename from fragment '%s': %m", fragment);
6297 id = filename;
6298
6299 if (unit_name_is_valid(id, UNIT_NAME_TEMPLATE)) {
6300 assert(u->instance); /* If we're not trying to use a template for non-instanced unit,
6301 * this must be set. */
6302
6303 r = unit_name_replace_instance(id, u->instance, &free_id);
6304 if (r < 0)
6305 return log_debug_errno(r, "Failed to build id (%s + %s): %m", id, u->instance);
6306 id = free_id;
6307 }
6308 }
6309
6310 return merge_by_names(u, names, id);
6311 }
6312
6313 void unit_dump_config_items(FILE *f) {
6314 static const struct {
6315 const ConfigParserCallback callback;
6316 const char *rvalue;
6317 } table[] = {
6318 { config_parse_warn_compat, "NOTSUPPORTED" },
6319 { config_parse_int, "INTEGER" },
6320 { config_parse_unsigned, "UNSIGNED" },
6321 { config_parse_iec_size, "SIZE" },
6322 { config_parse_iec_uint64, "SIZE" },
6323 { config_parse_si_uint64, "SIZE" },
6324 { config_parse_bool, "BOOLEAN" },
6325 { config_parse_string, "STRING" },
6326 { config_parse_path, "PATH" },
6327 { config_parse_unit_path_printf, "PATH" },
6328 { config_parse_colon_separated_paths, "PATH" },
6329 { config_parse_strv, "STRING [...]" },
6330 { config_parse_exec_nice, "NICE" },
6331 { config_parse_exec_oom_score_adjust, "OOMSCOREADJUST" },
6332 { config_parse_exec_io_class, "IOCLASS" },
6333 { config_parse_exec_io_priority, "IOPRIORITY" },
6334 { config_parse_exec_cpu_sched_policy, "CPUSCHEDPOLICY" },
6335 { config_parse_exec_cpu_sched_prio, "CPUSCHEDPRIO" },
6336 { config_parse_exec_cpu_affinity, "CPUAFFINITY" },
6337 { config_parse_mode, "MODE" },
6338 { config_parse_unit_env_file, "FILE" },
6339 { config_parse_exec_output, "OUTPUT" },
6340 { config_parse_exec_input, "INPUT" },
6341 { config_parse_log_facility, "FACILITY" },
6342 { config_parse_log_level, "LEVEL" },
6343 { config_parse_exec_secure_bits, "SECUREBITS" },
6344 { config_parse_capability_set, "BOUNDINGSET" },
6345 { config_parse_rlimit, "LIMIT" },
6346 { config_parse_unit_deps, "UNIT [...]" },
6347 { config_parse_exec, "PATH [ARGUMENT [...]]" },
6348 { config_parse_service_type, "SERVICETYPE" },
6349 { config_parse_service_exit_type, "SERVICEEXITTYPE" },
6350 { config_parse_service_restart, "SERVICERESTART" },
6351 { config_parse_service_restart_mode, "SERVICERESTARTMODE" },
6352 { config_parse_service_timeout_failure_mode, "TIMEOUTMODE" },
6353 { config_parse_kill_mode, "KILLMODE" },
6354 { config_parse_signal, "SIGNAL" },
6355 { config_parse_socket_listen, "SOCKET [...]" },
6356 { config_parse_socket_bind, "SOCKETBIND" },
6357 { config_parse_socket_bindtodevice, "NETWORKINTERFACE" },
6358 { config_parse_sec, "SECONDS" },
6359 { config_parse_nsec, "NANOSECONDS" },
6360 { config_parse_namespace_path_strv, "PATH [...]" },
6361 { config_parse_bind_paths, "PATH[:PATH[:OPTIONS]] [...]" },
6362 { config_parse_unit_mounts_for, "PATH [...]" },
6363 { config_parse_exec_mount_propagation_flag,
6364 "MOUNTFLAG" },
6365 { config_parse_unit_string_printf, "STRING" },
6366 { config_parse_trigger_unit, "UNIT" },
6367 { config_parse_timer, "TIMER" },
6368 { config_parse_path_spec, "PATH" },
6369 { config_parse_notify_access, "ACCESS" },
6370 { config_parse_ip_tos, "TOS" },
6371 { config_parse_unit_condition_path, "CONDITION" },
6372 { config_parse_unit_condition_string, "CONDITION" },
6373 { config_parse_unit_slice, "SLICE" },
6374 { config_parse_documentation, "URL" },
6375 { config_parse_service_timeout, "SECONDS" },
6376 { config_parse_emergency_action, "ACTION" },
6377 { config_parse_set_status, "STATUS" },
6378 { config_parse_service_sockets, "SOCKETS" },
6379 { config_parse_environ, "ENVIRON" },
6380 #if HAVE_SECCOMP
6381 { config_parse_syscall_filter, "SYSCALLS" },
6382 { config_parse_syscall_archs, "ARCHS" },
6383 { config_parse_syscall_errno, "ERRNO" },
6384 { config_parse_syscall_log, "SYSCALLS" },
6385 { config_parse_address_families, "FAMILIES" },
6386 { config_parse_restrict_namespaces, "NAMESPACES" },
6387 #endif
6388 { config_parse_restrict_filesystems, "FILESYSTEMS" },
6389 { config_parse_cpu_shares, "SHARES" },
6390 { config_parse_cg_weight, "WEIGHT" },
6391 { config_parse_cg_cpu_weight, "CPUWEIGHT" },
6392 { config_parse_memory_limit, "LIMIT" },
6393 { config_parse_device_allow, "DEVICE" },
6394 { config_parse_device_policy, "POLICY" },
6395 { config_parse_io_limit, "LIMIT" },
6396 { config_parse_io_device_weight, "DEVICEWEIGHT" },
6397 { config_parse_io_device_latency, "DEVICELATENCY" },
6398 { config_parse_blockio_bandwidth, "BANDWIDTH" },
6399 { config_parse_blockio_weight, "WEIGHT" },
6400 { config_parse_blockio_device_weight, "DEVICEWEIGHT" },
6401 { config_parse_long, "LONG" },
6402 { config_parse_socket_service, "SERVICE" },
6403 #if HAVE_SELINUX
6404 { config_parse_exec_selinux_context, "LABEL" },
6405 #endif
6406 { config_parse_job_mode, "MODE" },
6407 { config_parse_job_mode_isolate, "BOOLEAN" },
6408 { config_parse_personality, "PERSONALITY" },
6409 { config_parse_log_filter_patterns, "REGEX" },
6410 { config_parse_mount_node, "NODE" },
6411 };
6412
6413 const char *prev = NULL;
6414
6415 assert(f);
6416
6417 NULSTR_FOREACH(i, load_fragment_gperf_nulstr) {
6418 const char *rvalue = "OTHER", *lvalue;
6419 const ConfigPerfItem *p;
6420 const char *dot;
6421
6422 assert_se(p = load_fragment_gperf_lookup(i, strlen(i)));
6423
6424 /* Hide legacy settings */
6425 if (p->parse == config_parse_warn_compat &&
6426 p->ltype == DISABLED_LEGACY)
6427 continue;
6428
6429 for (size_t j = 0; j < ELEMENTSOF(table); j++)
6430 if (p->parse == table[j].callback) {
6431 rvalue = table[j].rvalue;
6432 break;
6433 }
6434
6435 dot = strchr(i, '.');
6436 lvalue = dot ? dot + 1 : i;
6437
6438 if (dot) {
6439 size_t prefix_len = dot - i;
6440
6441 if (!prev || !strneq(prev, i, prefix_len+1)) {
6442 if (prev)
6443 fputc('\n', f);
6444
6445 fprintf(f, "[%.*s]\n", (int) prefix_len, i);
6446 }
6447 }
6448
6449 fprintf(f, "%s=%s\n", lvalue, rvalue);
6450 prev = i;
6451 }
6452 }
6453
6454 int config_parse_cpu_affinity2(
6455 const char *unit,
6456 const char *filename,
6457 unsigned line,
6458 const char *section,
6459 unsigned section_line,
6460 const char *lvalue,
6461 int ltype,
6462 const char *rvalue,
6463 void *data,
6464 void *userdata) {
6465
6466 CPUSet *affinity = ASSERT_PTR(data);
6467
6468 (void) parse_cpu_set_extend(rvalue, affinity, true, unit, filename, line, lvalue);
6469
6470 return 0;
6471 }
6472
6473 int config_parse_show_status(
6474 const char* unit,
6475 const char *filename,
6476 unsigned line,
6477 const char *section,
6478 unsigned section_line,
6479 const char *lvalue,
6480 int ltype,
6481 const char *rvalue,
6482 void *data,
6483 void *userdata) {
6484
6485 int k;
6486 ShowStatus *b = ASSERT_PTR(data);
6487
6488 assert(filename);
6489 assert(lvalue);
6490 assert(rvalue);
6491
6492 k = parse_show_status(rvalue, b);
6493 if (k < 0)
6494 log_syntax(unit, LOG_WARNING, filename, line, k, "Failed to parse show status setting, ignoring: %s", rvalue);
6495
6496 return 0;
6497 }
6498
6499 int config_parse_output_restricted(
6500 const char* unit,
6501 const char *filename,
6502 unsigned line,
6503 const char *section,
6504 unsigned section_line,
6505 const char *lvalue,
6506 int ltype,
6507 const char *rvalue,
6508 void *data,
6509 void *userdata) {
6510
6511 ExecOutput t, *eo = ASSERT_PTR(data);
6512 bool obsolete = false;
6513
6514 assert(filename);
6515 assert(lvalue);
6516 assert(rvalue);
6517
6518 if (streq(rvalue, "syslog")) {
6519 t = EXEC_OUTPUT_JOURNAL;
6520 obsolete = true;
6521 } else if (streq(rvalue, "syslog+console")) {
6522 t = EXEC_OUTPUT_JOURNAL_AND_CONSOLE;
6523 obsolete = true;
6524 } else {
6525 t = exec_output_from_string(rvalue);
6526 if (t < 0) {
6527 log_syntax(unit, LOG_WARNING, filename, line, t, "Failed to parse output type, ignoring: %s", rvalue);
6528 return 0;
6529 }
6530
6531 if (IN_SET(t, EXEC_OUTPUT_SOCKET, EXEC_OUTPUT_NAMED_FD, EXEC_OUTPUT_FILE, EXEC_OUTPUT_FILE_APPEND, EXEC_OUTPUT_FILE_TRUNCATE)) {
6532 log_syntax(unit, LOG_WARNING, filename, line, 0, "Standard output types socket, fd:, file:, append:, truncate: are not supported as defaults, ignoring: %s", rvalue);
6533 return 0;
6534 }
6535 }
6536
6537 if (obsolete)
6538 log_syntax(unit, LOG_NOTICE, filename, line, 0,
6539 "Standard output type %s is obsolete, automatically updating to %s. Please update your configuration.",
6540 rvalue, exec_output_to_string(t));
6541
6542 *eo = t;
6543 return 0;
6544 }
6545
6546 int config_parse_crash_chvt(
6547 const char* unit,
6548 const char *filename,
6549 unsigned line,
6550 const char *section,
6551 unsigned section_line,
6552 const char *lvalue,
6553 int ltype,
6554 const char *rvalue,
6555 void *data,
6556 void *userdata) {
6557
6558 int r;
6559
6560 assert(filename);
6561 assert(lvalue);
6562 assert(rvalue);
6563 assert(data);
6564
6565 r = parse_crash_chvt(rvalue, data);
6566 if (r < 0)
6567 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse CrashChangeVT= setting, ignoring: %s", rvalue);
6568
6569 return 0;
6570 }
6571
6572 int config_parse_swap_priority(
6573 const char *unit,
6574 const char *filename,
6575 unsigned line,
6576 const char *section,
6577 unsigned section_line,
6578 const char *lvalue,
6579 int ltype,
6580 const char *rvalue,
6581 void *data,
6582 void *userdata) {
6583
6584 Swap *s = ASSERT_PTR(userdata);
6585 int r, priority;
6586
6587 assert(filename);
6588 assert(lvalue);
6589 assert(rvalue);
6590 assert(data);
6591
6592 if (isempty(rvalue)) {
6593 s->parameters_fragment.priority = -1;
6594 s->parameters_fragment.priority_set = false;
6595 return 0;
6596 }
6597
6598 r = safe_atoi(rvalue, &priority);
6599 if (r < 0) {
6600 log_syntax(unit, LOG_WARNING, filename, line, r, "Invalid swap priority '%s', ignoring.", rvalue);
6601 return 0;
6602 }
6603
6604 if (priority < -1) {
6605 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);
6606 return 0;
6607 }
6608
6609 if (priority > 32767) {
6610 log_syntax(unit, LOG_WARNING, filename, line, 0, "Swap priority out of range, ignoring: %s", rvalue);
6611 return 0;
6612 }
6613
6614 s->parameters_fragment.priority = priority;
6615 s->parameters_fragment.priority_set = true;
6616 return 0;
6617 }
6618
6619 int config_parse_watchdog_sec(
6620 const char *unit,
6621 const char *filename,
6622 unsigned line,
6623 const char *section,
6624 unsigned section_line,
6625 const char *lvalue,
6626 int ltype,
6627 const char *rvalue,
6628 void *data,
6629 void *userdata) {
6630
6631 usec_t *usec = data;
6632
6633 assert(filename);
6634 assert(lvalue);
6635 assert(rvalue);
6636
6637 /* This is called for {Runtime,Reboot,KExec}WatchdogSec= where "default" maps to
6638 * USEC_INFINITY internally. */
6639
6640 if (streq(rvalue, "default"))
6641 *usec = USEC_INFINITY;
6642 else if (streq(rvalue, "off"))
6643 *usec = 0;
6644 else
6645 return config_parse_sec(unit, filename, line, section, section_line, lvalue, ltype, rvalue, data, userdata);
6646
6647 return 0;
6648 }
6649
6650 int config_parse_tty_size(
6651 const char *unit,
6652 const char *filename,
6653 unsigned line,
6654 const char *section,
6655 unsigned section_line,
6656 const char *lvalue,
6657 int ltype,
6658 const char *rvalue,
6659 void *data,
6660 void *userdata) {
6661
6662 unsigned *sz = data;
6663
6664 assert(filename);
6665 assert(lvalue);
6666 assert(rvalue);
6667
6668 if (isempty(rvalue)) {
6669 *sz = UINT_MAX;
6670 return 0;
6671 }
6672
6673 return config_parse_unsigned(unit, filename, line, section, section_line, lvalue, ltype, rvalue, data, userdata);
6674 }
6675
6676 int config_parse_log_filter_patterns(
6677 const char *unit,
6678 const char *filename,
6679 unsigned line,
6680 const char *section,
6681 unsigned section_line,
6682 const char *lvalue,
6683 int ltype,
6684 const char *rvalue,
6685 void *data,
6686 void *userdata) {
6687
6688 ExecContext *c = ASSERT_PTR(data);
6689 const char *pattern = ASSERT_PTR(rvalue);
6690 bool is_allowlist = true;
6691 int r;
6692
6693 assert(filename);
6694 assert(lvalue);
6695
6696 if (isempty(pattern)) {
6697 /* Empty assignment resets the lists. */
6698 c->log_filter_allowed_patterns = set_free_free(c->log_filter_allowed_patterns);
6699 c->log_filter_denied_patterns = set_free_free(c->log_filter_denied_patterns);
6700 return 0;
6701 }
6702
6703 if (pattern[0] == '~') {
6704 is_allowlist = false;
6705 pattern++;
6706 if (isempty(pattern))
6707 /* LogFilterPatterns=~ is not considered a valid pattern. */
6708 return log_syntax(unit, LOG_WARNING, filename, line, 0,
6709 "Regex pattern invalid, ignoring: %s=%s", lvalue, rvalue);
6710 }
6711
6712 if (pattern_compile_and_log(pattern, 0, NULL) < 0)
6713 return 0;
6714
6715 r = set_put_strdup(is_allowlist ? &c->log_filter_allowed_patterns : &c->log_filter_denied_patterns,
6716 pattern);
6717 if (r < 0) {
6718 log_syntax(unit, LOG_WARNING, filename, line, r,
6719 "Failed to store log filtering pattern, ignoring: %s=%s", lvalue, rvalue);
6720 return 0;
6721 }
6722
6723 return 0;
6724 }
6725
6726 int config_parse_open_file(
6727 const char *unit,
6728 const char *filename,
6729 unsigned line,
6730 const char *section,
6731 unsigned section_line,
6732 const char *lvalue,
6733 int ltype,
6734 const char *rvalue,
6735 void *data,
6736 void *userdata) {
6737
6738 _cleanup_(open_file_freep) OpenFile *of = NULL;
6739 OpenFile **head = ASSERT_PTR(data);
6740 int r;
6741
6742 assert(filename);
6743 assert(lvalue);
6744 assert(rvalue);
6745
6746 if (isempty(rvalue)) {
6747 open_file_free_many(head);
6748 return 0;
6749 }
6750
6751 r = open_file_parse(rvalue, &of);
6752 if (r < 0) {
6753 log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse OpenFile= setting, ignoring: %s", rvalue);
6754 return 0;
6755 }
6756
6757 LIST_APPEND(open_files, *head, TAKE_PTR(of));
6758
6759 return 0;
6760 }
6761
6762 int config_parse_cgroup_nft_set(
6763 const char *unit,
6764 const char *filename,
6765 unsigned line,
6766 const char *section,
6767 unsigned section_line,
6768 const char *lvalue,
6769 int ltype,
6770 const char *rvalue,
6771 void *data,
6772 void *userdata) {
6773
6774 CGroupContext *c = ASSERT_PTR(data);
6775 Unit *u = ASSERT_PTR(userdata);
6776
6777 return config_parse_nft_set(unit, filename, line, section, section_line, lvalue, ltype, rvalue, &c->nft_set_context, u);
6778 }
Unnamed repository; edit this file 'description' to name the repository.