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Merge pull request #11971 from keszybz/kernel-install-directory
[thirdparty/systemd.git] / src / core / dbus-execute.c
1 /* SPDX-License-Identifier: LGPL-2.1+ */
2
3 #include <sys/mount.h>
4 #include <sys/prctl.h>
5 #include <stdio_ext.h>
6
7 #if HAVE_SECCOMP
8 #include <seccomp.h>
9 #endif
10
11 #include "af-list.h"
12 #include "alloc-util.h"
13 #include "bus-util.h"
14 #include "cap-list.h"
15 #include "capability-util.h"
16 #include "cpu-set-util.h"
17 #include "dbus-execute.h"
18 #include "dbus-util.h"
19 #include "env-util.h"
20 #include "errno-list.h"
21 #include "escape.h"
22 #include "execute.h"
23 #include "fd-util.h"
24 #include "fileio.h"
25 #include "hexdecoct.h"
26 #include "io-util.h"
27 #include "ioprio.h"
28 #include "journal-util.h"
29 #include "missing.h"
30 #include "mountpoint-util.h"
31 #include "namespace.h"
32 #include "parse-util.h"
33 #include "path-util.h"
34 #include "process-util.h"
35 #include "rlimit-util.h"
36 #if HAVE_SECCOMP
37 #include "seccomp-util.h"
38 #endif
39 #include "securebits-util.h"
40 #include "specifier.h"
41 #include "strv.h"
42 #include "syslog-util.h"
43 #include "unit-printf.h"
44 #include "user-util.h"
45 #include "utf8.h"
46
47 BUS_DEFINE_PROPERTY_GET_ENUM(bus_property_get_exec_output, exec_output, ExecOutput);
48 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_exec_input, exec_input, ExecInput);
49 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_exec_utmp_mode, exec_utmp_mode, ExecUtmpMode);
50 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_exec_preserve_mode, exec_preserve_mode, ExecPreserveMode);
51 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_exec_keyring_mode, exec_keyring_mode, ExecKeyringMode);
52 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_protect_home, protect_home, ProtectHome);
53 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_protect_system, protect_system, ProtectSystem);
54 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_personality, personality, unsigned long);
55 static BUS_DEFINE_PROPERTY_GET(property_get_ioprio, "i", ExecContext, exec_context_get_effective_ioprio);
56 static BUS_DEFINE_PROPERTY_GET2(property_get_ioprio_class, "i", ExecContext, exec_context_get_effective_ioprio, IOPRIO_PRIO_CLASS);
57 static BUS_DEFINE_PROPERTY_GET2(property_get_ioprio_priority, "i", ExecContext, exec_context_get_effective_ioprio, IOPRIO_PRIO_DATA);
58 static BUS_DEFINE_PROPERTY_GET_GLOBAL(property_get_empty_string, "s", NULL);
59 static BUS_DEFINE_PROPERTY_GET_REF(property_get_syslog_level, "i", int, LOG_PRI);
60 static BUS_DEFINE_PROPERTY_GET_REF(property_get_syslog_facility, "i", int, LOG_FAC);
61
62 static int property_get_environment_files(
63 sd_bus *bus,
64 const char *path,
65 const char *interface,
66 const char *property,
67 sd_bus_message *reply,
68 void *userdata,
69 sd_bus_error *error) {
70
71 ExecContext *c = userdata;
72 char **j;
73 int r;
74
75 assert(bus);
76 assert(reply);
77 assert(c);
78
79 r = sd_bus_message_open_container(reply, 'a', "(sb)");
80 if (r < 0)
81 return r;
82
83 STRV_FOREACH(j, c->environment_files) {
84 const char *fn = *j;
85
86 r = sd_bus_message_append(reply, "(sb)", fn[0] == '-' ? fn + 1 : fn, fn[0] == '-');
87 if (r < 0)
88 return r;
89 }
90
91 return sd_bus_message_close_container(reply);
92 }
93
94 static int property_get_oom_score_adjust(
95 sd_bus *bus,
96 const char *path,
97 const char *interface,
98 const char *property,
99 sd_bus_message *reply,
100 void *userdata,
101 sd_bus_error *error) {
102
103 ExecContext *c = userdata;
104 int32_t n;
105
106 assert(bus);
107 assert(reply);
108 assert(c);
109
110 if (c->oom_score_adjust_set)
111 n = c->oom_score_adjust;
112 else {
113 _cleanup_free_ char *t = NULL;
114
115 n = 0;
116 if (read_one_line_file("/proc/self/oom_score_adj", &t) >= 0)
117 safe_atoi32(t, &n);
118 }
119
120 return sd_bus_message_append(reply, "i", n);
121 }
122
123 static int property_get_nice(
124 sd_bus *bus,
125 const char *path,
126 const char *interface,
127 const char *property,
128 sd_bus_message *reply,
129 void *userdata,
130 sd_bus_error *error) {
131
132 ExecContext *c = userdata;
133 int32_t n;
134
135 assert(bus);
136 assert(reply);
137 assert(c);
138
139 if (c->nice_set)
140 n = c->nice;
141 else {
142 errno = 0;
143 n = getpriority(PRIO_PROCESS, 0);
144 if (errno > 0)
145 n = 0;
146 }
147
148 return sd_bus_message_append(reply, "i", n);
149 }
150
151 static int property_get_cpu_sched_policy(
152 sd_bus *bus,
153 const char *path,
154 const char *interface,
155 const char *property,
156 sd_bus_message *reply,
157 void *userdata,
158 sd_bus_error *error) {
159
160 ExecContext *c = userdata;
161 int32_t n;
162
163 assert(bus);
164 assert(reply);
165 assert(c);
166
167 if (c->cpu_sched_set)
168 n = c->cpu_sched_policy;
169 else {
170 n = sched_getscheduler(0);
171 if (n < 0)
172 n = SCHED_OTHER;
173 }
174
175 return sd_bus_message_append(reply, "i", n);
176 }
177
178 static int property_get_cpu_sched_priority(
179 sd_bus *bus,
180 const char *path,
181 const char *interface,
182 const char *property,
183 sd_bus_message *reply,
184 void *userdata,
185 sd_bus_error *error) {
186
187 ExecContext *c = userdata;
188 int32_t n;
189
190 assert(bus);
191 assert(reply);
192 assert(c);
193
194 if (c->cpu_sched_set)
195 n = c->cpu_sched_priority;
196 else {
197 struct sched_param p = {};
198
199 if (sched_getparam(0, &p) >= 0)
200 n = p.sched_priority;
201 else
202 n = 0;
203 }
204
205 return sd_bus_message_append(reply, "i", n);
206 }
207
208 static int property_get_cpu_affinity(
209 sd_bus *bus,
210 const char *path,
211 const char *interface,
212 const char *property,
213 sd_bus_message *reply,
214 void *userdata,
215 sd_bus_error *error) {
216
217 ExecContext *c = userdata;
218
219 assert(bus);
220 assert(reply);
221 assert(c);
222
223 return sd_bus_message_append_array(reply, 'y', c->cpuset, CPU_ALLOC_SIZE(c->cpuset_ncpus));
224 }
225
226 static int property_get_timer_slack_nsec(
227 sd_bus *bus,
228 const char *path,
229 const char *interface,
230 const char *property,
231 sd_bus_message *reply,
232 void *userdata,
233 sd_bus_error *error) {
234
235 ExecContext *c = userdata;
236 uint64_t u;
237
238 assert(bus);
239 assert(reply);
240 assert(c);
241
242 if (c->timer_slack_nsec != NSEC_INFINITY)
243 u = (uint64_t) c->timer_slack_nsec;
244 else
245 u = (uint64_t) prctl(PR_GET_TIMERSLACK);
246
247 return sd_bus_message_append(reply, "t", u);
248 }
249
250 static int property_get_syscall_filter(
251 sd_bus *bus,
252 const char *path,
253 const char *interface,
254 const char *property,
255 sd_bus_message *reply,
256 void *userdata,
257 sd_bus_error *error) {
258
259 ExecContext *c = userdata;
260 _cleanup_strv_free_ char **l = NULL;
261 int r;
262
263 #if HAVE_SECCOMP
264 Iterator i;
265 void *id, *val;
266 #endif
267
268 assert(bus);
269 assert(reply);
270 assert(c);
271
272 r = sd_bus_message_open_container(reply, 'r', "bas");
273 if (r < 0)
274 return r;
275
276 r = sd_bus_message_append(reply, "b", c->syscall_whitelist);
277 if (r < 0)
278 return r;
279
280 #if HAVE_SECCOMP
281 HASHMAP_FOREACH_KEY(val, id, c->syscall_filter, i) {
282 _cleanup_free_ char *name = NULL;
283 const char *e = NULL;
284 char *s;
285 int num = PTR_TO_INT(val);
286
287 name = seccomp_syscall_resolve_num_arch(SCMP_ARCH_NATIVE, PTR_TO_INT(id) - 1);
288 if (!name)
289 continue;
290
291 if (num >= 0) {
292 e = errno_to_name(num);
293 if (e) {
294 s = strjoin(name, ":", e);
295 if (!s)
296 return -ENOMEM;
297 } else {
298 r = asprintf(&s, "%s:%d", name, num);
299 if (r < 0)
300 return -ENOMEM;
301 }
302 } else
303 s = TAKE_PTR(name);
304
305 r = strv_consume(&l, s);
306 if (r < 0)
307 return r;
308 }
309 #endif
310
311 strv_sort(l);
312
313 r = sd_bus_message_append_strv(reply, l);
314 if (r < 0)
315 return r;
316
317 return sd_bus_message_close_container(reply);
318 }
319
320 static int property_get_syscall_archs(
321 sd_bus *bus,
322 const char *path,
323 const char *interface,
324 const char *property,
325 sd_bus_message *reply,
326 void *userdata,
327 sd_bus_error *error) {
328
329 ExecContext *c = userdata;
330 _cleanup_strv_free_ char **l = NULL;
331 int r;
332
333 #if HAVE_SECCOMP
334 Iterator i;
335 void *id;
336 #endif
337
338 assert(bus);
339 assert(reply);
340 assert(c);
341
342 #if HAVE_SECCOMP
343 SET_FOREACH(id, c->syscall_archs, i) {
344 const char *name;
345
346 name = seccomp_arch_to_string(PTR_TO_UINT32(id) - 1);
347 if (!name)
348 continue;
349
350 r = strv_extend(&l, name);
351 if (r < 0)
352 return -ENOMEM;
353 }
354 #endif
355
356 strv_sort(l);
357
358 r = sd_bus_message_append_strv(reply, l);
359 if (r < 0)
360 return r;
361
362 return 0;
363 }
364
365 static int property_get_selinux_context(
366 sd_bus *bus,
367 const char *path,
368 const char *interface,
369 const char *property,
370 sd_bus_message *reply,
371 void *userdata,
372 sd_bus_error *error) {
373
374 ExecContext *c = userdata;
375
376 assert(bus);
377 assert(reply);
378 assert(c);
379
380 return sd_bus_message_append(reply, "(bs)", c->selinux_context_ignore, c->selinux_context);
381 }
382
383 static int property_get_apparmor_profile(
384 sd_bus *bus,
385 const char *path,
386 const char *interface,
387 const char *property,
388 sd_bus_message *reply,
389 void *userdata,
390 sd_bus_error *error) {
391
392 ExecContext *c = userdata;
393
394 assert(bus);
395 assert(reply);
396 assert(c);
397
398 return sd_bus_message_append(reply, "(bs)", c->apparmor_profile_ignore, c->apparmor_profile);
399 }
400
401 static int property_get_smack_process_label(
402 sd_bus *bus,
403 const char *path,
404 const char *interface,
405 const char *property,
406 sd_bus_message *reply,
407 void *userdata,
408 sd_bus_error *error) {
409
410 ExecContext *c = userdata;
411
412 assert(bus);
413 assert(reply);
414 assert(c);
415
416 return sd_bus_message_append(reply, "(bs)", c->smack_process_label_ignore, c->smack_process_label);
417 }
418
419 static int property_get_address_families(
420 sd_bus *bus,
421 const char *path,
422 const char *interface,
423 const char *property,
424 sd_bus_message *reply,
425 void *userdata,
426 sd_bus_error *error) {
427
428 ExecContext *c = userdata;
429 _cleanup_strv_free_ char **l = NULL;
430 Iterator i;
431 void *af;
432 int r;
433
434 assert(bus);
435 assert(reply);
436 assert(c);
437
438 r = sd_bus_message_open_container(reply, 'r', "bas");
439 if (r < 0)
440 return r;
441
442 r = sd_bus_message_append(reply, "b", c->address_families_whitelist);
443 if (r < 0)
444 return r;
445
446 SET_FOREACH(af, c->address_families, i) {
447 const char *name;
448
449 name = af_to_name(PTR_TO_INT(af));
450 if (!name)
451 continue;
452
453 r = strv_extend(&l, name);
454 if (r < 0)
455 return -ENOMEM;
456 }
457
458 strv_sort(l);
459
460 r = sd_bus_message_append_strv(reply, l);
461 if (r < 0)
462 return r;
463
464 return sd_bus_message_close_container(reply);
465 }
466
467 static int property_get_working_directory(
468 sd_bus *bus,
469 const char *path,
470 const char *interface,
471 const char *property,
472 sd_bus_message *reply,
473 void *userdata,
474 sd_bus_error *error) {
475
476 ExecContext *c = userdata;
477 const char *wd;
478
479 assert(bus);
480 assert(reply);
481 assert(c);
482
483 if (c->working_directory_home)
484 wd = "~";
485 else
486 wd = c->working_directory;
487
488 if (c->working_directory_missing_ok)
489 wd = strjoina("!", wd);
490
491 return sd_bus_message_append(reply, "s", wd);
492 }
493
494 static int property_get_stdio_fdname(
495 sd_bus *bus,
496 const char *path,
497 const char *interface,
498 const char *property,
499 sd_bus_message *reply,
500 void *userdata,
501 sd_bus_error *error) {
502
503 ExecContext *c = userdata;
504 int fileno;
505
506 assert(bus);
507 assert(c);
508 assert(property);
509 assert(reply);
510
511 if (streq(property, "StandardInputFileDescriptorName"))
512 fileno = STDIN_FILENO;
513 else if (streq(property, "StandardOutputFileDescriptorName"))
514 fileno = STDOUT_FILENO;
515 else {
516 assert(streq(property, "StandardErrorFileDescriptorName"));
517 fileno = STDERR_FILENO;
518 }
519
520 return sd_bus_message_append(reply, "s", exec_context_fdname(c, fileno));
521 }
522
523 static int property_get_input_data(
524 sd_bus *bus,
525 const char *path,
526 const char *interface,
527 const char *property,
528 sd_bus_message *reply,
529 void *userdata,
530 sd_bus_error *error) {
531
532 ExecContext *c = userdata;
533
534 assert(bus);
535 assert(c);
536 assert(property);
537 assert(reply);
538
539 return sd_bus_message_append_array(reply, 'y', c->stdin_data, c->stdin_data_size);
540 }
541
542 static int property_get_bind_paths(
543 sd_bus *bus,
544 const char *path,
545 const char *interface,
546 const char *property,
547 sd_bus_message *reply,
548 void *userdata,
549 sd_bus_error *error) {
550
551 ExecContext *c = userdata;
552 unsigned i;
553 bool ro;
554 int r;
555
556 assert(bus);
557 assert(c);
558 assert(property);
559 assert(reply);
560
561 ro = strstr(property, "ReadOnly");
562
563 r = sd_bus_message_open_container(reply, 'a', "(ssbt)");
564 if (r < 0)
565 return r;
566
567 for (i = 0; i < c->n_bind_mounts; i++) {
568
569 if (ro != c->bind_mounts[i].read_only)
570 continue;
571
572 r = sd_bus_message_append(
573 reply, "(ssbt)",
574 c->bind_mounts[i].source,
575 c->bind_mounts[i].destination,
576 c->bind_mounts[i].ignore_enoent,
577 c->bind_mounts[i].recursive ? (uint64_t) MS_REC : (uint64_t) 0);
578 if (r < 0)
579 return r;
580 }
581
582 return sd_bus_message_close_container(reply);
583 }
584
585 static int property_get_temporary_filesystems(
586 sd_bus *bus,
587 const char *path,
588 const char *interface,
589 const char *property,
590 sd_bus_message *reply,
591 void *userdata,
592 sd_bus_error *error) {
593
594 ExecContext *c = userdata;
595 unsigned i;
596 int r;
597
598 assert(bus);
599 assert(c);
600 assert(property);
601 assert(reply);
602
603 r = sd_bus_message_open_container(reply, 'a', "(ss)");
604 if (r < 0)
605 return r;
606
607 for (i = 0; i < c->n_temporary_filesystems; i++) {
608 TemporaryFileSystem *t = c->temporary_filesystems + i;
609
610 r = sd_bus_message_append(
611 reply, "(ss)",
612 t->path,
613 t->options);
614 if (r < 0)
615 return r;
616 }
617
618 return sd_bus_message_close_container(reply);
619 }
620
621 static int property_get_log_extra_fields(
622 sd_bus *bus,
623 const char *path,
624 const char *interface,
625 const char *property,
626 sd_bus_message *reply,
627 void *userdata,
628 sd_bus_error *error) {
629
630 ExecContext *c = userdata;
631 size_t i;
632 int r;
633
634 assert(bus);
635 assert(c);
636 assert(property);
637 assert(reply);
638
639 r = sd_bus_message_open_container(reply, 'a', "ay");
640 if (r < 0)
641 return r;
642
643 for (i = 0; i < c->n_log_extra_fields; i++) {
644 r = sd_bus_message_append_array(reply, 'y', c->log_extra_fields[i].iov_base, c->log_extra_fields[i].iov_len);
645 if (r < 0)
646 return r;
647 }
648
649 return sd_bus_message_close_container(reply);
650 }
651
652 const sd_bus_vtable bus_exec_vtable[] = {
653 SD_BUS_VTABLE_START(0),
654 SD_BUS_PROPERTY("Environment", "as", NULL, offsetof(ExecContext, environment), SD_BUS_VTABLE_PROPERTY_CONST),
655 SD_BUS_PROPERTY("EnvironmentFiles", "a(sb)", property_get_environment_files, 0, SD_BUS_VTABLE_PROPERTY_CONST),
656 SD_BUS_PROPERTY("PassEnvironment", "as", NULL, offsetof(ExecContext, pass_environment), SD_BUS_VTABLE_PROPERTY_CONST),
657 SD_BUS_PROPERTY("UnsetEnvironment", "as", NULL, offsetof(ExecContext, unset_environment), SD_BUS_VTABLE_PROPERTY_CONST),
658 SD_BUS_PROPERTY("UMask", "u", bus_property_get_mode, offsetof(ExecContext, umask), SD_BUS_VTABLE_PROPERTY_CONST),
659 SD_BUS_PROPERTY("LimitCPU", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_CPU]), SD_BUS_VTABLE_PROPERTY_CONST),
660 SD_BUS_PROPERTY("LimitCPUSoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_CPU]), SD_BUS_VTABLE_PROPERTY_CONST),
661 SD_BUS_PROPERTY("LimitFSIZE", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_FSIZE]), SD_BUS_VTABLE_PROPERTY_CONST),
662 SD_BUS_PROPERTY("LimitFSIZESoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_FSIZE]), SD_BUS_VTABLE_PROPERTY_CONST),
663 SD_BUS_PROPERTY("LimitDATA", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_DATA]), SD_BUS_VTABLE_PROPERTY_CONST),
664 SD_BUS_PROPERTY("LimitDATASoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_DATA]), SD_BUS_VTABLE_PROPERTY_CONST),
665 SD_BUS_PROPERTY("LimitSTACK", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_STACK]), SD_BUS_VTABLE_PROPERTY_CONST),
666 SD_BUS_PROPERTY("LimitSTACKSoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_STACK]), SD_BUS_VTABLE_PROPERTY_CONST),
667 SD_BUS_PROPERTY("LimitCORE", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_CORE]), SD_BUS_VTABLE_PROPERTY_CONST),
668 SD_BUS_PROPERTY("LimitCORESoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_CORE]), SD_BUS_VTABLE_PROPERTY_CONST),
669 SD_BUS_PROPERTY("LimitRSS", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_RSS]), SD_BUS_VTABLE_PROPERTY_CONST),
670 SD_BUS_PROPERTY("LimitRSSSoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_RSS]), SD_BUS_VTABLE_PROPERTY_CONST),
671 SD_BUS_PROPERTY("LimitNOFILE", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_NOFILE]), SD_BUS_VTABLE_PROPERTY_CONST),
672 SD_BUS_PROPERTY("LimitNOFILESoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_NOFILE]), SD_BUS_VTABLE_PROPERTY_CONST),
673 SD_BUS_PROPERTY("LimitAS", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_AS]), SD_BUS_VTABLE_PROPERTY_CONST),
674 SD_BUS_PROPERTY("LimitASSoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_AS]), SD_BUS_VTABLE_PROPERTY_CONST),
675 SD_BUS_PROPERTY("LimitNPROC", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_NPROC]), SD_BUS_VTABLE_PROPERTY_CONST),
676 SD_BUS_PROPERTY("LimitNPROCSoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_NPROC]), SD_BUS_VTABLE_PROPERTY_CONST),
677 SD_BUS_PROPERTY("LimitMEMLOCK", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_MEMLOCK]), SD_BUS_VTABLE_PROPERTY_CONST),
678 SD_BUS_PROPERTY("LimitMEMLOCKSoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_MEMLOCK]), SD_BUS_VTABLE_PROPERTY_CONST),
679 SD_BUS_PROPERTY("LimitLOCKS", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_LOCKS]), SD_BUS_VTABLE_PROPERTY_CONST),
680 SD_BUS_PROPERTY("LimitLOCKSSoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_LOCKS]), SD_BUS_VTABLE_PROPERTY_CONST),
681 SD_BUS_PROPERTY("LimitSIGPENDING", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_SIGPENDING]), SD_BUS_VTABLE_PROPERTY_CONST),
682 SD_BUS_PROPERTY("LimitSIGPENDINGSoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_SIGPENDING]), SD_BUS_VTABLE_PROPERTY_CONST),
683 SD_BUS_PROPERTY("LimitMSGQUEUE", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_MSGQUEUE]), SD_BUS_VTABLE_PROPERTY_CONST),
684 SD_BUS_PROPERTY("LimitMSGQUEUESoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_MSGQUEUE]), SD_BUS_VTABLE_PROPERTY_CONST),
685 SD_BUS_PROPERTY("LimitNICE", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_NICE]), SD_BUS_VTABLE_PROPERTY_CONST),
686 SD_BUS_PROPERTY("LimitNICESoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_NICE]), SD_BUS_VTABLE_PROPERTY_CONST),
687 SD_BUS_PROPERTY("LimitRTPRIO", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_RTPRIO]), SD_BUS_VTABLE_PROPERTY_CONST),
688 SD_BUS_PROPERTY("LimitRTPRIOSoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_RTPRIO]), SD_BUS_VTABLE_PROPERTY_CONST),
689 SD_BUS_PROPERTY("LimitRTTIME", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_RTTIME]), SD_BUS_VTABLE_PROPERTY_CONST),
690 SD_BUS_PROPERTY("LimitRTTIMESoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_RTTIME]), SD_BUS_VTABLE_PROPERTY_CONST),
691 SD_BUS_PROPERTY("WorkingDirectory", "s", property_get_working_directory, 0, SD_BUS_VTABLE_PROPERTY_CONST),
692 SD_BUS_PROPERTY("RootDirectory", "s", NULL, offsetof(ExecContext, root_directory), SD_BUS_VTABLE_PROPERTY_CONST),
693 SD_BUS_PROPERTY("RootImage", "s", NULL, offsetof(ExecContext, root_image), SD_BUS_VTABLE_PROPERTY_CONST),
694 SD_BUS_PROPERTY("OOMScoreAdjust", "i", property_get_oom_score_adjust, 0, SD_BUS_VTABLE_PROPERTY_CONST),
695 SD_BUS_PROPERTY("Nice", "i", property_get_nice, 0, SD_BUS_VTABLE_PROPERTY_CONST),
696 SD_BUS_PROPERTY("IOSchedulingClass", "i", property_get_ioprio_class, 0, SD_BUS_VTABLE_PROPERTY_CONST),
697 SD_BUS_PROPERTY("IOSchedulingPriority", "i", property_get_ioprio_priority, 0, SD_BUS_VTABLE_PROPERTY_CONST),
698 SD_BUS_PROPERTY("CPUSchedulingPolicy", "i", property_get_cpu_sched_policy, 0, SD_BUS_VTABLE_PROPERTY_CONST),
699 SD_BUS_PROPERTY("CPUSchedulingPriority", "i", property_get_cpu_sched_priority, 0, SD_BUS_VTABLE_PROPERTY_CONST),
700 SD_BUS_PROPERTY("CPUAffinity", "ay", property_get_cpu_affinity, 0, SD_BUS_VTABLE_PROPERTY_CONST),
701 SD_BUS_PROPERTY("TimerSlackNSec", "t", property_get_timer_slack_nsec, 0, SD_BUS_VTABLE_PROPERTY_CONST),
702 SD_BUS_PROPERTY("CPUSchedulingResetOnFork", "b", bus_property_get_bool, offsetof(ExecContext, cpu_sched_reset_on_fork), SD_BUS_VTABLE_PROPERTY_CONST),
703 SD_BUS_PROPERTY("NonBlocking", "b", bus_property_get_bool, offsetof(ExecContext, non_blocking), SD_BUS_VTABLE_PROPERTY_CONST),
704 SD_BUS_PROPERTY("StandardInput", "s", property_get_exec_input, offsetof(ExecContext, std_input), SD_BUS_VTABLE_PROPERTY_CONST),
705 SD_BUS_PROPERTY("StandardInputFileDescriptorName", "s", property_get_stdio_fdname, 0, SD_BUS_VTABLE_PROPERTY_CONST),
706 SD_BUS_PROPERTY("StandardInputData", "ay", property_get_input_data, 0, SD_BUS_VTABLE_PROPERTY_CONST),
707 SD_BUS_PROPERTY("StandardOutput", "s", bus_property_get_exec_output, offsetof(ExecContext, std_output), SD_BUS_VTABLE_PROPERTY_CONST),
708 SD_BUS_PROPERTY("StandardOutputFileDescriptorName", "s", property_get_stdio_fdname, 0, SD_BUS_VTABLE_PROPERTY_CONST),
709 SD_BUS_PROPERTY("StandardError", "s", bus_property_get_exec_output, offsetof(ExecContext, std_error), SD_BUS_VTABLE_PROPERTY_CONST),
710 SD_BUS_PROPERTY("StandardErrorFileDescriptorName", "s", property_get_stdio_fdname, 0, SD_BUS_VTABLE_PROPERTY_CONST),
711 SD_BUS_PROPERTY("TTYPath", "s", NULL, offsetof(ExecContext, tty_path), SD_BUS_VTABLE_PROPERTY_CONST),
712 SD_BUS_PROPERTY("TTYReset", "b", bus_property_get_bool, offsetof(ExecContext, tty_reset), SD_BUS_VTABLE_PROPERTY_CONST),
713 SD_BUS_PROPERTY("TTYVHangup", "b", bus_property_get_bool, offsetof(ExecContext, tty_vhangup), SD_BUS_VTABLE_PROPERTY_CONST),
714 SD_BUS_PROPERTY("TTYVTDisallocate", "b", bus_property_get_bool, offsetof(ExecContext, tty_vt_disallocate), SD_BUS_VTABLE_PROPERTY_CONST),
715 SD_BUS_PROPERTY("SyslogPriority", "i", bus_property_get_int, offsetof(ExecContext, syslog_priority), SD_BUS_VTABLE_PROPERTY_CONST),
716 SD_BUS_PROPERTY("SyslogIdentifier", "s", NULL, offsetof(ExecContext, syslog_identifier), SD_BUS_VTABLE_PROPERTY_CONST),
717 SD_BUS_PROPERTY("SyslogLevelPrefix", "b", bus_property_get_bool, offsetof(ExecContext, syslog_level_prefix), SD_BUS_VTABLE_PROPERTY_CONST),
718 SD_BUS_PROPERTY("SyslogLevel", "i", property_get_syslog_level, offsetof(ExecContext, syslog_priority), SD_BUS_VTABLE_PROPERTY_CONST),
719 SD_BUS_PROPERTY("SyslogFacility", "i", property_get_syslog_facility, offsetof(ExecContext, syslog_priority), SD_BUS_VTABLE_PROPERTY_CONST),
720 SD_BUS_PROPERTY("LogLevelMax", "i", bus_property_get_int, offsetof(ExecContext, log_level_max), SD_BUS_VTABLE_PROPERTY_CONST),
721 SD_BUS_PROPERTY("LogRateLimitIntervalUSec", "t", bus_property_get_usec, offsetof(ExecContext, log_rate_limit_interval_usec), SD_BUS_VTABLE_PROPERTY_CONST),
722 SD_BUS_PROPERTY("LogRateLimitBurst", "u", bus_property_get_unsigned, offsetof(ExecContext, log_rate_limit_burst), SD_BUS_VTABLE_PROPERTY_CONST),
723 SD_BUS_PROPERTY("LogExtraFields", "aay", property_get_log_extra_fields, 0, SD_BUS_VTABLE_PROPERTY_CONST),
724 SD_BUS_PROPERTY("SecureBits", "i", bus_property_get_int, offsetof(ExecContext, secure_bits), SD_BUS_VTABLE_PROPERTY_CONST),
725 SD_BUS_PROPERTY("CapabilityBoundingSet", "t", NULL, offsetof(ExecContext, capability_bounding_set), SD_BUS_VTABLE_PROPERTY_CONST),
726 SD_BUS_PROPERTY("AmbientCapabilities", "t", NULL, offsetof(ExecContext, capability_ambient_set), SD_BUS_VTABLE_PROPERTY_CONST),
727 SD_BUS_PROPERTY("User", "s", NULL, offsetof(ExecContext, user), SD_BUS_VTABLE_PROPERTY_CONST),
728 SD_BUS_PROPERTY("Group", "s", NULL, offsetof(ExecContext, group), SD_BUS_VTABLE_PROPERTY_CONST),
729 SD_BUS_PROPERTY("DynamicUser", "b", bus_property_get_bool, offsetof(ExecContext, dynamic_user), SD_BUS_VTABLE_PROPERTY_CONST),
730 SD_BUS_PROPERTY("RemoveIPC", "b", bus_property_get_bool, offsetof(ExecContext, remove_ipc), SD_BUS_VTABLE_PROPERTY_CONST),
731 SD_BUS_PROPERTY("SupplementaryGroups", "as", NULL, offsetof(ExecContext, supplementary_groups), SD_BUS_VTABLE_PROPERTY_CONST),
732 SD_BUS_PROPERTY("PAMName", "s", NULL, offsetof(ExecContext, pam_name), SD_BUS_VTABLE_PROPERTY_CONST),
733 SD_BUS_PROPERTY("ReadWritePaths", "as", NULL, offsetof(ExecContext, read_write_paths), SD_BUS_VTABLE_PROPERTY_CONST),
734 SD_BUS_PROPERTY("ReadOnlyPaths", "as", NULL, offsetof(ExecContext, read_only_paths), SD_BUS_VTABLE_PROPERTY_CONST),
735 SD_BUS_PROPERTY("InaccessiblePaths", "as", NULL, offsetof(ExecContext, inaccessible_paths), SD_BUS_VTABLE_PROPERTY_CONST),
736 SD_BUS_PROPERTY("MountFlags", "t", bus_property_get_ulong, offsetof(ExecContext, mount_flags), SD_BUS_VTABLE_PROPERTY_CONST),
737 SD_BUS_PROPERTY("PrivateTmp", "b", bus_property_get_bool, offsetof(ExecContext, private_tmp), SD_BUS_VTABLE_PROPERTY_CONST),
738 SD_BUS_PROPERTY("PrivateDevices", "b", bus_property_get_bool, offsetof(ExecContext, private_devices), SD_BUS_VTABLE_PROPERTY_CONST),
739 SD_BUS_PROPERTY("ProtectKernelTunables", "b", bus_property_get_bool, offsetof(ExecContext, protect_kernel_tunables), SD_BUS_VTABLE_PROPERTY_CONST),
740 SD_BUS_PROPERTY("ProtectKernelModules", "b", bus_property_get_bool, offsetof(ExecContext, protect_kernel_modules), SD_BUS_VTABLE_PROPERTY_CONST),
741 SD_BUS_PROPERTY("ProtectControlGroups", "b", bus_property_get_bool, offsetof(ExecContext, protect_control_groups), SD_BUS_VTABLE_PROPERTY_CONST),
742 SD_BUS_PROPERTY("PrivateNetwork", "b", bus_property_get_bool, offsetof(ExecContext, private_network), SD_BUS_VTABLE_PROPERTY_CONST),
743 SD_BUS_PROPERTY("PrivateUsers", "b", bus_property_get_bool, offsetof(ExecContext, private_users), SD_BUS_VTABLE_PROPERTY_CONST),
744 SD_BUS_PROPERTY("PrivateMounts", "b", bus_property_get_bool, offsetof(ExecContext, private_mounts), SD_BUS_VTABLE_PROPERTY_CONST),
745 SD_BUS_PROPERTY("ProtectHome", "s", property_get_protect_home, offsetof(ExecContext, protect_home), SD_BUS_VTABLE_PROPERTY_CONST),
746 SD_BUS_PROPERTY("ProtectSystem", "s", property_get_protect_system, offsetof(ExecContext, protect_system), SD_BUS_VTABLE_PROPERTY_CONST),
747 SD_BUS_PROPERTY("SameProcessGroup", "b", bus_property_get_bool, offsetof(ExecContext, same_pgrp), SD_BUS_VTABLE_PROPERTY_CONST),
748 SD_BUS_PROPERTY("UtmpIdentifier", "s", NULL, offsetof(ExecContext, utmp_id), SD_BUS_VTABLE_PROPERTY_CONST),
749 SD_BUS_PROPERTY("UtmpMode", "s", property_get_exec_utmp_mode, offsetof(ExecContext, utmp_mode), SD_BUS_VTABLE_PROPERTY_CONST),
750 SD_BUS_PROPERTY("SELinuxContext", "(bs)", property_get_selinux_context, 0, SD_BUS_VTABLE_PROPERTY_CONST),
751 SD_BUS_PROPERTY("AppArmorProfile", "(bs)", property_get_apparmor_profile, 0, SD_BUS_VTABLE_PROPERTY_CONST),
752 SD_BUS_PROPERTY("SmackProcessLabel", "(bs)", property_get_smack_process_label, 0, SD_BUS_VTABLE_PROPERTY_CONST),
753 SD_BUS_PROPERTY("IgnoreSIGPIPE", "b", bus_property_get_bool, offsetof(ExecContext, ignore_sigpipe), SD_BUS_VTABLE_PROPERTY_CONST),
754 SD_BUS_PROPERTY("NoNewPrivileges", "b", bus_property_get_bool, offsetof(ExecContext, no_new_privileges), SD_BUS_VTABLE_PROPERTY_CONST),
755 SD_BUS_PROPERTY("SystemCallFilter", "(bas)", property_get_syscall_filter, 0, SD_BUS_VTABLE_PROPERTY_CONST),
756 SD_BUS_PROPERTY("SystemCallArchitectures", "as", property_get_syscall_archs, 0, SD_BUS_VTABLE_PROPERTY_CONST),
757 SD_BUS_PROPERTY("SystemCallErrorNumber", "i", bus_property_get_int, offsetof(ExecContext, syscall_errno), SD_BUS_VTABLE_PROPERTY_CONST),
758 SD_BUS_PROPERTY("Personality", "s", property_get_personality, offsetof(ExecContext, personality), SD_BUS_VTABLE_PROPERTY_CONST),
759 SD_BUS_PROPERTY("LockPersonality", "b", bus_property_get_bool, offsetof(ExecContext, lock_personality), SD_BUS_VTABLE_PROPERTY_CONST),
760 SD_BUS_PROPERTY("RestrictAddressFamilies", "(bas)", property_get_address_families, 0, SD_BUS_VTABLE_PROPERTY_CONST),
761 SD_BUS_PROPERTY("RuntimeDirectoryPreserve", "s", property_get_exec_preserve_mode, offsetof(ExecContext, runtime_directory_preserve_mode), SD_BUS_VTABLE_PROPERTY_CONST),
762 SD_BUS_PROPERTY("RuntimeDirectoryMode", "u", bus_property_get_mode, offsetof(ExecContext, directories[EXEC_DIRECTORY_RUNTIME].mode), SD_BUS_VTABLE_PROPERTY_CONST),
763 SD_BUS_PROPERTY("RuntimeDirectory", "as", NULL, offsetof(ExecContext, directories[EXEC_DIRECTORY_RUNTIME].paths), SD_BUS_VTABLE_PROPERTY_CONST),
764 SD_BUS_PROPERTY("StateDirectoryMode", "u", bus_property_get_mode, offsetof(ExecContext, directories[EXEC_DIRECTORY_STATE].mode), SD_BUS_VTABLE_PROPERTY_CONST),
765 SD_BUS_PROPERTY("StateDirectory", "as", NULL, offsetof(ExecContext, directories[EXEC_DIRECTORY_STATE].paths), SD_BUS_VTABLE_PROPERTY_CONST),
766 SD_BUS_PROPERTY("CacheDirectoryMode", "u", bus_property_get_mode, offsetof(ExecContext, directories[EXEC_DIRECTORY_CACHE].mode), SD_BUS_VTABLE_PROPERTY_CONST),
767 SD_BUS_PROPERTY("CacheDirectory", "as", NULL, offsetof(ExecContext, directories[EXEC_DIRECTORY_CACHE].paths), SD_BUS_VTABLE_PROPERTY_CONST),
768 SD_BUS_PROPERTY("LogsDirectoryMode", "u", bus_property_get_mode, offsetof(ExecContext, directories[EXEC_DIRECTORY_LOGS].mode), SD_BUS_VTABLE_PROPERTY_CONST),
769 SD_BUS_PROPERTY("LogsDirectory", "as", NULL, offsetof(ExecContext, directories[EXEC_DIRECTORY_LOGS].paths), SD_BUS_VTABLE_PROPERTY_CONST),
770 SD_BUS_PROPERTY("ConfigurationDirectoryMode", "u", bus_property_get_mode, offsetof(ExecContext, directories[EXEC_DIRECTORY_CONFIGURATION].mode), SD_BUS_VTABLE_PROPERTY_CONST),
771 SD_BUS_PROPERTY("ConfigurationDirectory", "as", NULL, offsetof(ExecContext, directories[EXEC_DIRECTORY_CONFIGURATION].paths), SD_BUS_VTABLE_PROPERTY_CONST),
772 SD_BUS_PROPERTY("MemoryDenyWriteExecute", "b", bus_property_get_bool, offsetof(ExecContext, memory_deny_write_execute), SD_BUS_VTABLE_PROPERTY_CONST),
773 SD_BUS_PROPERTY("RestrictRealtime", "b", bus_property_get_bool, offsetof(ExecContext, restrict_realtime), SD_BUS_VTABLE_PROPERTY_CONST),
774 SD_BUS_PROPERTY("RestrictNamespaces", "t", bus_property_get_ulong, offsetof(ExecContext, restrict_namespaces), SD_BUS_VTABLE_PROPERTY_CONST),
775 SD_BUS_PROPERTY("BindPaths", "a(ssbt)", property_get_bind_paths, 0, SD_BUS_VTABLE_PROPERTY_CONST),
776 SD_BUS_PROPERTY("BindReadOnlyPaths", "a(ssbt)", property_get_bind_paths, 0, SD_BUS_VTABLE_PROPERTY_CONST),
777 SD_BUS_PROPERTY("TemporaryFileSystem", "a(ss)", property_get_temporary_filesystems, 0, SD_BUS_VTABLE_PROPERTY_CONST),
778 SD_BUS_PROPERTY("MountAPIVFS", "b", bus_property_get_bool, offsetof(ExecContext, mount_apivfs), SD_BUS_VTABLE_PROPERTY_CONST),
779 SD_BUS_PROPERTY("KeyringMode", "s", property_get_exec_keyring_mode, offsetof(ExecContext, keyring_mode), SD_BUS_VTABLE_PROPERTY_CONST),
780 SD_BUS_PROPERTY("ProtectHostname", "b", bus_property_get_bool, offsetof(ExecContext, protect_hostname), SD_BUS_VTABLE_PROPERTY_CONST),
781 SD_BUS_PROPERTY("NetworkNamespacePath", "s", NULL, offsetof(ExecContext, network_namespace_path), SD_BUS_VTABLE_PROPERTY_CONST),
782
783 /* Obsolete/redundant properties: */
784 SD_BUS_PROPERTY("Capabilities", "s", property_get_empty_string, 0, SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
785 SD_BUS_PROPERTY("ReadWriteDirectories", "as", NULL, offsetof(ExecContext, read_write_paths), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
786 SD_BUS_PROPERTY("ReadOnlyDirectories", "as", NULL, offsetof(ExecContext, read_only_paths), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
787 SD_BUS_PROPERTY("InaccessibleDirectories", "as", NULL, offsetof(ExecContext, inaccessible_paths), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
788 SD_BUS_PROPERTY("IOScheduling", "i", property_get_ioprio, 0, SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
789
790 SD_BUS_VTABLE_END
791 };
792
793 static int append_exec_command(sd_bus_message *reply, ExecCommand *c) {
794 int r;
795
796 assert(reply);
797 assert(c);
798
799 if (!c->path)
800 return 0;
801
802 r = sd_bus_message_open_container(reply, 'r', "sasbttttuii");
803 if (r < 0)
804 return r;
805
806 r = sd_bus_message_append(reply, "s", c->path);
807 if (r < 0)
808 return r;
809
810 r = sd_bus_message_append_strv(reply, c->argv);
811 if (r < 0)
812 return r;
813
814 r = sd_bus_message_append(reply, "bttttuii",
815 !!(c->flags & EXEC_COMMAND_IGNORE_FAILURE),
816 c->exec_status.start_timestamp.realtime,
817 c->exec_status.start_timestamp.monotonic,
818 c->exec_status.exit_timestamp.realtime,
819 c->exec_status.exit_timestamp.monotonic,
820 (uint32_t) c->exec_status.pid,
821 (int32_t) c->exec_status.code,
822 (int32_t) c->exec_status.status);
823 if (r < 0)
824 return r;
825
826 return sd_bus_message_close_container(reply);
827 }
828
829 int bus_property_get_exec_command(
830 sd_bus *bus,
831 const char *path,
832 const char *interface,
833 const char *property,
834 sd_bus_message *reply,
835 void *userdata,
836 sd_bus_error *ret_error) {
837
838 ExecCommand *c = (ExecCommand*) userdata;
839 int r;
840
841 assert(bus);
842 assert(reply);
843
844 r = sd_bus_message_open_container(reply, 'a', "(sasbttttuii)");
845 if (r < 0)
846 return r;
847
848 r = append_exec_command(reply, c);
849 if (r < 0)
850 return r;
851
852 return sd_bus_message_close_container(reply);
853 }
854
855 int bus_property_get_exec_command_list(
856 sd_bus *bus,
857 const char *path,
858 const char *interface,
859 const char *property,
860 sd_bus_message *reply,
861 void *userdata,
862 sd_bus_error *ret_error) {
863
864 ExecCommand *c = *(ExecCommand**) userdata;
865 int r;
866
867 assert(bus);
868 assert(reply);
869
870 r = sd_bus_message_open_container(reply, 'a', "(sasbttttuii)");
871 if (r < 0)
872 return r;
873
874 LIST_FOREACH(command, c, c) {
875 r = append_exec_command(reply, c);
876 if (r < 0)
877 return r;
878 }
879
880 return sd_bus_message_close_container(reply);
881 }
882
883 int bus_set_transient_exec_command(
884 Unit *u,
885 const char *name,
886 ExecCommand **exec_command,
887 sd_bus_message *message,
888 UnitWriteFlags flags,
889 sd_bus_error *error) {
890 unsigned n = 0;
891 int r;
892
893 r = sd_bus_message_enter_container(message, 'a', "(sasb)");
894 if (r < 0)
895 return r;
896
897 while ((r = sd_bus_message_enter_container(message, 'r', "sasb")) > 0) {
898 _cleanup_strv_free_ char **argv = NULL;
899 const char *path;
900 int b;
901
902 r = sd_bus_message_read(message, "s", &path);
903 if (r < 0)
904 return r;
905
906 if (!path_is_absolute(path))
907 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not absolute.", path);
908
909 r = sd_bus_message_read_strv(message, &argv);
910 if (r < 0)
911 return r;
912
913 r = sd_bus_message_read(message, "b", &b);
914 if (r < 0)
915 return r;
916
917 r = sd_bus_message_exit_container(message);
918 if (r < 0)
919 return r;
920
921 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
922 ExecCommand *c;
923
924 c = new0(ExecCommand, 1);
925 if (!c)
926 return -ENOMEM;
927
928 c->path = strdup(path);
929 if (!c->path) {
930 free(c);
931 return -ENOMEM;
932 }
933
934 c->argv = TAKE_PTR(argv);
935
936 c->flags = b ? EXEC_COMMAND_IGNORE_FAILURE : 0;
937
938 path_simplify(c->path, false);
939 exec_command_append_list(exec_command, c);
940 }
941
942 n++;
943 }
944 if (r < 0)
945 return r;
946
947 r = sd_bus_message_exit_container(message);
948 if (r < 0)
949 return r;
950
951 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
952 _cleanup_free_ char *buf = NULL;
953 _cleanup_fclose_ FILE *f = NULL;
954 ExecCommand *c;
955 size_t size = 0;
956
957 if (n == 0)
958 *exec_command = exec_command_free_list(*exec_command);
959
960 f = open_memstream(&buf, &size);
961 if (!f)
962 return -ENOMEM;
963
964 (void) __fsetlocking(f, FSETLOCKING_BYCALLER);
965
966 fputs("ExecStart=\n", f);
967
968 LIST_FOREACH(command, c, *exec_command) {
969 _cleanup_free_ char *a = NULL, *t = NULL;
970 const char *p;
971
972 p = unit_escape_setting(c->path, UNIT_ESCAPE_C|UNIT_ESCAPE_SPECIFIERS, &t);
973 if (!p)
974 return -ENOMEM;
975
976 a = unit_concat_strv(c->argv, UNIT_ESCAPE_C|UNIT_ESCAPE_SPECIFIERS);
977 if (!a)
978 return -ENOMEM;
979
980 fprintf(f, "%s=%s@%s %s\n",
981 name,
982 c->flags & EXEC_COMMAND_IGNORE_FAILURE ? "-" : "",
983 p,
984 a);
985 }
986
987 r = fflush_and_check(f);
988 if (r < 0)
989 return r;
990
991 unit_write_setting(u, flags, name, buf);
992 }
993
994 return 1;
995 }
996
997 static int parse_personality(const char *s, unsigned long *p) {
998 unsigned long v;
999
1000 assert(p);
1001
1002 v = personality_from_string(s);
1003 if (v == PERSONALITY_INVALID)
1004 return -EINVAL;
1005
1006 *p = v;
1007 return 0;
1008 }
1009
1010 static const char* mount_propagation_flags_to_string_with_check(unsigned long n) {
1011 if (!IN_SET(n, 0, MS_SHARED, MS_PRIVATE, MS_SLAVE))
1012 return NULL;
1013
1014 return mount_propagation_flags_to_string(n);
1015 }
1016
1017 static BUS_DEFINE_SET_TRANSIENT(nsec, "t", uint64_t, nsec_t, NSEC_FMT);
1018 static BUS_DEFINE_SET_TRANSIENT_IS_VALID(log_level, "i", int32_t, int, "%" PRIi32, log_level_is_valid);
1019 #if HAVE_SECCOMP
1020 static BUS_DEFINE_SET_TRANSIENT_IS_VALID(errno, "i", int32_t, int, "%" PRIi32, errno_is_valid);
1021 #endif
1022 static BUS_DEFINE_SET_TRANSIENT_PARSE(std_input, ExecInput, exec_input_from_string);
1023 static BUS_DEFINE_SET_TRANSIENT_PARSE(std_output, ExecOutput, exec_output_from_string);
1024 static BUS_DEFINE_SET_TRANSIENT_PARSE(utmp_mode, ExecUtmpMode, exec_utmp_mode_from_string);
1025 static BUS_DEFINE_SET_TRANSIENT_PARSE(protect_system, ProtectSystem, protect_system_from_string);
1026 static BUS_DEFINE_SET_TRANSIENT_PARSE(protect_home, ProtectHome, protect_home_from_string);
1027 static BUS_DEFINE_SET_TRANSIENT_PARSE(keyring_mode, ExecKeyringMode, exec_keyring_mode_from_string);
1028 static BUS_DEFINE_SET_TRANSIENT_PARSE(preserve_mode, ExecPreserveMode, exec_preserve_mode_from_string);
1029 static BUS_DEFINE_SET_TRANSIENT_PARSE_PTR(personality, unsigned long, parse_personality);
1030 static BUS_DEFINE_SET_TRANSIENT_TO_STRING_ALLOC(secure_bits, "i", int32_t, int, "%" PRIi32, secure_bits_to_string_alloc_with_check);
1031 static BUS_DEFINE_SET_TRANSIENT_TO_STRING_ALLOC(capability, "t", uint64_t, uint64_t, "%" PRIu64, capability_set_to_string_alloc);
1032 static BUS_DEFINE_SET_TRANSIENT_TO_STRING_ALLOC(namespace_flag, "t", uint64_t, unsigned long, "%" PRIu64, namespace_flags_to_string);
1033 static BUS_DEFINE_SET_TRANSIENT_TO_STRING(mount_flags, "t", uint64_t, unsigned long, "%" PRIu64, mount_propagation_flags_to_string_with_check);
1034
1035 int bus_exec_context_set_transient_property(
1036 Unit *u,
1037 ExecContext *c,
1038 const char *name,
1039 sd_bus_message *message,
1040 UnitWriteFlags flags,
1041 sd_bus_error *error) {
1042
1043 const char *suffix;
1044 int r;
1045
1046 assert(u);
1047 assert(c);
1048 assert(name);
1049 assert(message);
1050
1051 flags |= UNIT_PRIVATE;
1052
1053 if (streq(name, "User"))
1054 return bus_set_transient_user(u, name, &c->user, message, flags, error);
1055
1056 if (streq(name, "Group"))
1057 return bus_set_transient_user(u, name, &c->group, message, flags, error);
1058
1059 if (streq(name, "TTYPath"))
1060 return bus_set_transient_path(u, name, &c->tty_path, message, flags, error);
1061
1062 if (streq(name, "RootImage"))
1063 return bus_set_transient_path(u, name, &c->root_image, message, flags, error);
1064
1065 if (streq(name, "RootDirectory"))
1066 return bus_set_transient_path(u, name, &c->root_directory, message, flags, error);
1067
1068 if (streq(name, "SyslogIdentifier"))
1069 return bus_set_transient_string(u, name, &c->syslog_identifier, message, flags, error);
1070
1071 if (streq(name, "LogLevelMax"))
1072 return bus_set_transient_log_level(u, name, &c->log_level_max, message, flags, error);
1073
1074 if (streq(name, "LogRateLimitIntervalUSec"))
1075 return bus_set_transient_usec(u, name, &c->log_rate_limit_interval_usec, message, flags, error);
1076
1077 if (streq(name, "LogRateLimitBurst"))
1078 return bus_set_transient_unsigned(u, name, &c->log_rate_limit_burst, message, flags, error);
1079
1080 if (streq(name, "Personality"))
1081 return bus_set_transient_personality(u, name, &c->personality, message, flags, error);
1082
1083 if (streq(name, "StandardInput"))
1084 return bus_set_transient_std_input(u, name, &c->std_input, message, flags, error);
1085
1086 if (streq(name, "StandardOutput"))
1087 return bus_set_transient_std_output(u, name, &c->std_output, message, flags, error);
1088
1089 if (streq(name, "StandardError"))
1090 return bus_set_transient_std_output(u, name, &c->std_error, message, flags, error);
1091
1092 if (streq(name, "IgnoreSIGPIPE"))
1093 return bus_set_transient_bool(u, name, &c->ignore_sigpipe, message, flags, error);
1094
1095 if (streq(name, "TTYVHangup"))
1096 return bus_set_transient_bool(u, name, &c->tty_vhangup, message, flags, error);
1097
1098 if (streq(name, "TTYReset"))
1099 return bus_set_transient_bool(u, name, &c->tty_reset, message, flags, error);
1100
1101 if (streq(name, "TTYVTDisallocate"))
1102 return bus_set_transient_bool(u, name, &c->tty_vt_disallocate, message, flags, error);
1103
1104 if (streq(name, "PrivateTmp"))
1105 return bus_set_transient_bool(u, name, &c->private_tmp, message, flags, error);
1106
1107 if (streq(name, "PrivateDevices"))
1108 return bus_set_transient_bool(u, name, &c->private_devices, message, flags, error);
1109
1110 if (streq(name, "PrivateMounts"))
1111 return bus_set_transient_bool(u, name, &c->private_mounts, message, flags, error);
1112
1113 if (streq(name, "PrivateNetwork"))
1114 return bus_set_transient_bool(u, name, &c->private_network, message, flags, error);
1115
1116 if (streq(name, "PrivateUsers"))
1117 return bus_set_transient_bool(u, name, &c->private_users, message, flags, error);
1118
1119 if (streq(name, "NoNewPrivileges"))
1120 return bus_set_transient_bool(u, name, &c->no_new_privileges, message, flags, error);
1121
1122 if (streq(name, "SyslogLevelPrefix"))
1123 return bus_set_transient_bool(u, name, &c->syslog_level_prefix, message, flags, error);
1124
1125 if (streq(name, "MemoryDenyWriteExecute"))
1126 return bus_set_transient_bool(u, name, &c->memory_deny_write_execute, message, flags, error);
1127
1128 if (streq(name, "RestrictRealtime"))
1129 return bus_set_transient_bool(u, name, &c->restrict_realtime, message, flags, error);
1130
1131 if (streq(name, "DynamicUser"))
1132 return bus_set_transient_bool(u, name, &c->dynamic_user, message, flags, error);
1133
1134 if (streq(name, "RemoveIPC"))
1135 return bus_set_transient_bool(u, name, &c->remove_ipc, message, flags, error);
1136
1137 if (streq(name, "ProtectKernelTunables"))
1138 return bus_set_transient_bool(u, name, &c->protect_kernel_tunables, message, flags, error);
1139
1140 if (streq(name, "ProtectKernelModules"))
1141 return bus_set_transient_bool(u, name, &c->protect_kernel_modules, message, flags, error);
1142
1143 if (streq(name, "ProtectControlGroups"))
1144 return bus_set_transient_bool(u, name, &c->protect_control_groups, message, flags, error);
1145
1146 if (streq(name, "MountAPIVFS"))
1147 return bus_set_transient_bool(u, name, &c->mount_apivfs, message, flags, error);
1148
1149 if (streq(name, "CPUSchedulingResetOnFork"))
1150 return bus_set_transient_bool(u, name, &c->cpu_sched_reset_on_fork, message, flags, error);
1151
1152 if (streq(name, "NonBlocking"))
1153 return bus_set_transient_bool(u, name, &c->non_blocking, message, flags, error);
1154
1155 if (streq(name, "LockPersonality"))
1156 return bus_set_transient_bool(u, name, &c->lock_personality, message, flags, error);
1157
1158 if (streq(name, "ProtectHostname"))
1159 return bus_set_transient_bool(u, name, &c->protect_hostname, message, flags, error);
1160
1161 if (streq(name, "UtmpIdentifier"))
1162 return bus_set_transient_string(u, name, &c->utmp_id, message, flags, error);
1163
1164 if (streq(name, "UtmpMode"))
1165 return bus_set_transient_utmp_mode(u, name, &c->utmp_mode, message, flags, error);
1166
1167 if (streq(name, "PAMName"))
1168 return bus_set_transient_string(u, name, &c->pam_name, message, flags, error);
1169
1170 if (streq(name, "TimerSlackNSec"))
1171 return bus_set_transient_nsec(u, name, &c->timer_slack_nsec, message, flags, error);
1172
1173 if (streq(name, "ProtectSystem"))
1174 return bus_set_transient_protect_system(u, name, &c->protect_system, message, flags, error);
1175
1176 if (streq(name, "ProtectHome"))
1177 return bus_set_transient_protect_home(u, name, &c->protect_home, message, flags, error);
1178
1179 if (streq(name, "KeyringMode"))
1180 return bus_set_transient_keyring_mode(u, name, &c->keyring_mode, message, flags, error);
1181
1182 if (streq(name, "RuntimeDirectoryPreserve"))
1183 return bus_set_transient_preserve_mode(u, name, &c->runtime_directory_preserve_mode, message, flags, error);
1184
1185 if (streq(name, "UMask"))
1186 return bus_set_transient_mode_t(u, name, &c->umask, message, flags, error);
1187
1188 if (streq(name, "RuntimeDirectoryMode"))
1189 return bus_set_transient_mode_t(u, name, &c->directories[EXEC_DIRECTORY_RUNTIME].mode, message, flags, error);
1190
1191 if (streq(name, "StateDirectoryMode"))
1192 return bus_set_transient_mode_t(u, name, &c->directories[EXEC_DIRECTORY_STATE].mode, message, flags, error);
1193
1194 if (streq(name, "CacheDirectoryMode"))
1195 return bus_set_transient_mode_t(u, name, &c->directories[EXEC_DIRECTORY_CACHE].mode, message, flags, error);
1196
1197 if (streq(name, "LogsDirectoryMode"))
1198 return bus_set_transient_mode_t(u, name, &c->directories[EXEC_DIRECTORY_LOGS].mode, message, flags, error);
1199
1200 if (streq(name, "ConfigurationDirectoryMode"))
1201 return bus_set_transient_mode_t(u, name, &c->directories[EXEC_DIRECTORY_CONFIGURATION].mode, message, flags, error);
1202
1203 if (streq(name, "SELinuxContext"))
1204 return bus_set_transient_string(u, name, &c->selinux_context, message, flags, error);
1205
1206 if (streq(name, "SecureBits"))
1207 return bus_set_transient_secure_bits(u, name, &c->secure_bits, message, flags, error);
1208
1209 if (streq(name, "CapabilityBoundingSet"))
1210 return bus_set_transient_capability(u, name, &c->capability_bounding_set, message, flags, error);
1211
1212 if (streq(name, "AmbientCapabilities"))
1213 return bus_set_transient_capability(u, name, &c->capability_ambient_set, message, flags, error);
1214
1215 if (streq(name, "RestrictNamespaces"))
1216 return bus_set_transient_namespace_flag(u, name, &c->restrict_namespaces, message, flags, error);
1217
1218 if (streq(name, "MountFlags"))
1219 return bus_set_transient_mount_flags(u, name, &c->mount_flags, message, flags, error);
1220
1221 if (streq(name, "NetworkNamespacePath"))
1222 return bus_set_transient_path(u, name, &c->network_namespace_path, message, flags, error);
1223
1224 if (streq(name, "SupplementaryGroups")) {
1225 _cleanup_strv_free_ char **l = NULL;
1226 char **p;
1227
1228 r = sd_bus_message_read_strv(message, &l);
1229 if (r < 0)
1230 return r;
1231
1232 STRV_FOREACH(p, l) {
1233 if (!isempty(*p) && !valid_user_group_name_or_id(*p))
1234 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid supplementary group names");
1235 }
1236
1237 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1238 if (strv_isempty(l)) {
1239 c->supplementary_groups = strv_free(c->supplementary_groups);
1240 unit_write_settingf(u, flags, name, "%s=", name);
1241 } else {
1242 _cleanup_free_ char *joined = NULL;
1243
1244 r = strv_extend_strv(&c->supplementary_groups, l, true);
1245 if (r < 0)
1246 return -ENOMEM;
1247
1248 joined = strv_join(c->supplementary_groups, " ");
1249 if (!joined)
1250 return -ENOMEM;
1251
1252 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "%s=%s", name, joined);
1253 }
1254 }
1255
1256 return 1;
1257
1258 } else if (streq(name, "SyslogLevel")) {
1259 int32_t level;
1260
1261 r = sd_bus_message_read(message, "i", &level);
1262 if (r < 0)
1263 return r;
1264
1265 if (!log_level_is_valid(level))
1266 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Log level value out of range");
1267
1268 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1269 c->syslog_priority = (c->syslog_priority & LOG_FACMASK) | level;
1270 unit_write_settingf(u, flags, name, "SyslogLevel=%i", level);
1271 }
1272
1273 return 1;
1274
1275 } else if (streq(name, "SyslogFacility")) {
1276 int32_t facility;
1277
1278 r = sd_bus_message_read(message, "i", &facility);
1279 if (r < 0)
1280 return r;
1281
1282 if (!log_facility_unshifted_is_valid(facility))
1283 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Log facility value out of range");
1284
1285 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1286 c->syslog_priority = (facility << 3) | LOG_PRI(c->syslog_priority);
1287 unit_write_settingf(u, flags, name, "SyslogFacility=%i", facility);
1288 }
1289
1290 return 1;
1291
1292 } else if (streq(name, "LogExtraFields")) {
1293 size_t n = 0;
1294
1295 r = sd_bus_message_enter_container(message, 'a', "ay");
1296 if (r < 0)
1297 return r;
1298
1299 for (;;) {
1300 _cleanup_free_ void *copy = NULL;
1301 struct iovec *t;
1302 const char *eq;
1303 const void *p;
1304 size_t sz;
1305
1306 /* Note that we expect a byte array for each field, instead of a string. That's because on the
1307 * lower-level journal fields can actually contain binary data and are not restricted to text,
1308 * and we should not "lose precision" in our types on the way. That said, I am pretty sure
1309 * actually encoding binary data as unit metadata is not a good idea. Hence we actually refuse
1310 * any actual binary data, and only accept UTF-8. This allows us to eventually lift this
1311 * limitation, should a good, valid usecase arise. */
1312
1313 r = sd_bus_message_read_array(message, 'y', &p, &sz);
1314 if (r < 0)
1315 return r;
1316 if (r == 0)
1317 break;
1318
1319 if (memchr(p, 0, sz))
1320 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Journal field contains zero byte");
1321
1322 eq = memchr(p, '=', sz);
1323 if (!eq)
1324 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Journal field contains no '=' character");
1325 if (!journal_field_valid(p, eq - (const char*) p, false))
1326 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Journal field invalid");
1327
1328 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1329 t = reallocarray(c->log_extra_fields, c->n_log_extra_fields+1, sizeof(struct iovec));
1330 if (!t)
1331 return -ENOMEM;
1332 c->log_extra_fields = t;
1333 }
1334
1335 copy = malloc(sz + 1);
1336 if (!copy)
1337 return -ENOMEM;
1338
1339 memcpy(copy, p, sz);
1340 ((uint8_t*) copy)[sz] = 0;
1341
1342 if (!utf8_is_valid(copy))
1343 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Journal field is not valid UTF-8");
1344
1345 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1346 c->log_extra_fields[c->n_log_extra_fields++] = IOVEC_MAKE(copy, sz);
1347 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS|UNIT_ESCAPE_C, name, "LogExtraFields=%s", (char*) copy);
1348
1349 copy = NULL;
1350 }
1351
1352 n++;
1353 }
1354
1355 r = sd_bus_message_exit_container(message);
1356 if (r < 0)
1357 return r;
1358
1359 if (!UNIT_WRITE_FLAGS_NOOP(flags) && n == 0) {
1360 exec_context_free_log_extra_fields(c);
1361 unit_write_setting(u, flags, name, "LogExtraFields=");
1362 }
1363
1364 return 1;
1365 }
1366
1367 #if HAVE_SECCOMP
1368
1369 if (streq(name, "SystemCallErrorNumber"))
1370 return bus_set_transient_errno(u, name, &c->syscall_errno, message, flags, error);
1371
1372 if (streq(name, "SystemCallFilter")) {
1373 int whitelist;
1374 _cleanup_strv_free_ char **l = NULL;
1375
1376 r = sd_bus_message_enter_container(message, 'r', "bas");
1377 if (r < 0)
1378 return r;
1379
1380 r = sd_bus_message_read(message, "b", &whitelist);
1381 if (r < 0)
1382 return r;
1383
1384 r = sd_bus_message_read_strv(message, &l);
1385 if (r < 0)
1386 return r;
1387
1388 r = sd_bus_message_exit_container(message);
1389 if (r < 0)
1390 return r;
1391
1392 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1393 _cleanup_free_ char *joined = NULL;
1394 bool invert = !whitelist;
1395 char **s;
1396
1397 if (strv_isempty(l)) {
1398 c->syscall_whitelist = false;
1399 c->syscall_filter = hashmap_free(c->syscall_filter);
1400
1401 unit_write_settingf(u, flags, name, "SystemCallFilter=");
1402 return 1;
1403 }
1404
1405 if (!c->syscall_filter) {
1406 c->syscall_filter = hashmap_new(NULL);
1407 if (!c->syscall_filter)
1408 return log_oom();
1409
1410 c->syscall_whitelist = whitelist;
1411
1412 if (c->syscall_whitelist) {
1413 r = seccomp_parse_syscall_filter("@default", -1, c->syscall_filter, SECCOMP_PARSE_WHITELIST | (invert ? SECCOMP_PARSE_INVERT : 0));
1414 if (r < 0)
1415 return r;
1416 }
1417 }
1418
1419 STRV_FOREACH(s, l) {
1420 _cleanup_free_ char *n = NULL;
1421 int e;
1422
1423 r = parse_syscall_and_errno(*s, &n, &e);
1424 if (r < 0)
1425 return r;
1426
1427 r = seccomp_parse_syscall_filter(n, e, c->syscall_filter, (invert ? SECCOMP_PARSE_INVERT : 0) | (c->syscall_whitelist ? SECCOMP_PARSE_WHITELIST : 0));
1428 if (r < 0)
1429 return r;
1430 }
1431
1432 joined = strv_join(l, " ");
1433 if (!joined)
1434 return -ENOMEM;
1435
1436 unit_write_settingf(u, flags, name, "SystemCallFilter=%s%s", whitelist ? "" : "~", joined);
1437 }
1438
1439 return 1;
1440
1441 } else if (streq(name, "SystemCallArchitectures")) {
1442 _cleanup_strv_free_ char **l = NULL;
1443
1444 r = sd_bus_message_read_strv(message, &l);
1445 if (r < 0)
1446 return r;
1447
1448 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1449 _cleanup_free_ char *joined = NULL;
1450
1451 if (strv_isempty(l))
1452 c->syscall_archs = set_free(c->syscall_archs);
1453 else {
1454 char **s;
1455
1456 r = set_ensure_allocated(&c->syscall_archs, NULL);
1457 if (r < 0)
1458 return r;
1459
1460 STRV_FOREACH(s, l) {
1461 uint32_t a;
1462
1463 r = seccomp_arch_from_string(*s, &a);
1464 if (r < 0)
1465 return r;
1466
1467 r = set_put(c->syscall_archs, UINT32_TO_PTR(a + 1));
1468 if (r < 0)
1469 return r;
1470 }
1471
1472 }
1473
1474 joined = strv_join(l, " ");
1475 if (!joined)
1476 return -ENOMEM;
1477
1478 unit_write_settingf(u, flags, name, "%s=%s", name, joined);
1479 }
1480
1481 return 1;
1482
1483 } else if (streq(name, "RestrictAddressFamilies")) {
1484 int whitelist;
1485 _cleanup_strv_free_ char **l = NULL;
1486
1487 r = sd_bus_message_enter_container(message, 'r', "bas");
1488 if (r < 0)
1489 return r;
1490
1491 r = sd_bus_message_read(message, "b", &whitelist);
1492 if (r < 0)
1493 return r;
1494
1495 r = sd_bus_message_read_strv(message, &l);
1496 if (r < 0)
1497 return r;
1498
1499 r = sd_bus_message_exit_container(message);
1500 if (r < 0)
1501 return r;
1502
1503 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1504 _cleanup_free_ char *joined = NULL;
1505 bool invert = !whitelist;
1506 char **s;
1507
1508 if (strv_isempty(l)) {
1509 c->address_families_whitelist = false;
1510 c->address_families = set_free(c->address_families);
1511
1512 unit_write_settingf(u, flags, name, "RestrictAddressFamilies=");
1513 return 1;
1514 }
1515
1516 if (!c->address_families) {
1517 c->address_families = set_new(NULL);
1518 if (!c->address_families)
1519 return log_oom();
1520
1521 c->address_families_whitelist = whitelist;
1522 }
1523
1524 STRV_FOREACH(s, l) {
1525 int af;
1526
1527 af = af_from_name(*s);
1528 if (af < 0)
1529 return af;
1530
1531 if (!invert == c->address_families_whitelist) {
1532 r = set_put(c->address_families, INT_TO_PTR(af));
1533 if (r < 0)
1534 return r;
1535 } else
1536 (void) set_remove(c->address_families, INT_TO_PTR(af));
1537 }
1538
1539 joined = strv_join(l, " ");
1540 if (!joined)
1541 return -ENOMEM;
1542
1543 unit_write_settingf(u, flags, name, "RestrictAddressFamilies=%s%s", whitelist ? "" : "~", joined);
1544 }
1545
1546 return 1;
1547 }
1548 #endif
1549 if (streq(name, "CPUAffinity")) {
1550 const void *a;
1551 size_t n = 0;
1552
1553 r = sd_bus_message_read_array(message, 'y', &a, &n);
1554 if (r < 0)
1555 return r;
1556
1557 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1558 if (n == 0) {
1559 c->cpuset = cpu_set_mfree(c->cpuset);
1560 c->cpuset_ncpus = 0;
1561 unit_write_settingf(u, flags, name, "%s=", name);
1562 } else {
1563 _cleanup_free_ char *str = NULL;
1564 size_t allocated = 0, len = 0, i, ncpus;
1565
1566 ncpus = CPU_SIZE_TO_NUM(n);
1567
1568 for (i = 0; i < ncpus; i++) {
1569 _cleanup_free_ char *p = NULL;
1570 size_t add;
1571
1572 if (!CPU_ISSET_S(i, n, (cpu_set_t*) a))
1573 continue;
1574
1575 r = asprintf(&p, "%zu", i);
1576 if (r < 0)
1577 return -ENOMEM;
1578
1579 add = strlen(p);
1580
1581 if (!GREEDY_REALLOC(str, allocated, len + add + 2))
1582 return -ENOMEM;
1583
1584 strcpy(mempcpy(str + len, p, add), " ");
1585 len += add + 1;
1586 }
1587
1588 if (len != 0)
1589 str[len - 1] = '\0';
1590
1591 if (!c->cpuset || c->cpuset_ncpus < ncpus) {
1592 cpu_set_t *cpuset;
1593
1594 cpuset = CPU_ALLOC(ncpus);
1595 if (!cpuset)
1596 return -ENOMEM;
1597
1598 CPU_ZERO_S(n, cpuset);
1599 if (c->cpuset) {
1600 CPU_OR_S(CPU_ALLOC_SIZE(c->cpuset_ncpus), cpuset, c->cpuset, (cpu_set_t*) a);
1601 CPU_FREE(c->cpuset);
1602 } else
1603 CPU_OR_S(n, cpuset, cpuset, (cpu_set_t*) a);
1604
1605 c->cpuset = cpuset;
1606 c->cpuset_ncpus = ncpus;
1607 } else
1608 CPU_OR_S(n, c->cpuset, c->cpuset, (cpu_set_t*) a);
1609
1610 unit_write_settingf(u, flags, name, "%s=%s", name, str);
1611 }
1612 }
1613
1614 return 1;
1615
1616 } else if (streq(name, "Nice")) {
1617 int32_t q;
1618
1619 r = sd_bus_message_read(message, "i", &q);
1620 if (r < 0)
1621 return r;
1622
1623 if (!nice_is_valid(q))
1624 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid Nice value: %i", q);
1625
1626 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1627 c->nice = q;
1628 c->nice_set = true;
1629
1630 unit_write_settingf(u, flags, name, "Nice=%i", q);
1631 }
1632
1633 return 1;
1634
1635 } else if (streq(name, "CPUSchedulingPolicy")) {
1636 int32_t q;
1637
1638 r = sd_bus_message_read(message, "i", &q);
1639 if (r < 0)
1640 return r;
1641
1642 if (!sched_policy_is_valid(q))
1643 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid CPU scheduling policy: %i", q);
1644
1645 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1646 _cleanup_free_ char *s = NULL;
1647
1648 r = sched_policy_to_string_alloc(q, &s);
1649 if (r < 0)
1650 return r;
1651
1652 c->cpu_sched_policy = q;
1653 c->cpu_sched_priority = CLAMP(c->cpu_sched_priority, sched_get_priority_min(q), sched_get_priority_max(q));
1654 c->cpu_sched_set = true;
1655
1656 unit_write_settingf(u, flags, name, "CPUSchedulingPolicy=%s", s);
1657 }
1658
1659 return 1;
1660
1661 } else if (streq(name, "CPUSchedulingPriority")) {
1662 int32_t p, min, max;
1663
1664 r = sd_bus_message_read(message, "i", &p);
1665 if (r < 0)
1666 return r;
1667
1668 min = sched_get_priority_min(c->cpu_sched_policy);
1669 max = sched_get_priority_max(c->cpu_sched_policy);
1670 if (p < min || p > max)
1671 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid CPU scheduling priority: %i", p);
1672
1673 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1674 c->cpu_sched_priority = p;
1675 c->cpu_sched_set = true;
1676
1677 unit_write_settingf(u, flags, name, "CPUSchedulingPriority=%i", p);
1678 }
1679
1680 return 1;
1681
1682 } else if (streq(name, "IOSchedulingClass")) {
1683 int32_t q;
1684
1685 r = sd_bus_message_read(message, "i", &q);
1686 if (r < 0)
1687 return r;
1688
1689 if (!ioprio_class_is_valid(q))
1690 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid IO scheduling class: %i", q);
1691
1692 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1693 _cleanup_free_ char *s = NULL;
1694
1695 r = ioprio_class_to_string_alloc(q, &s);
1696 if (r < 0)
1697 return r;
1698
1699 c->ioprio = IOPRIO_PRIO_VALUE(q, IOPRIO_PRIO_DATA(c->ioprio));
1700 c->ioprio_set = true;
1701
1702 unit_write_settingf(u, flags, name, "IOSchedulingClass=%s", s);
1703 }
1704
1705 return 1;
1706
1707 } else if (streq(name, "IOSchedulingPriority")) {
1708 int32_t p;
1709
1710 r = sd_bus_message_read(message, "i", &p);
1711 if (r < 0)
1712 return r;
1713
1714 if (!ioprio_priority_is_valid(p))
1715 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid IO scheduling priority: %i", p);
1716
1717 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1718 c->ioprio = IOPRIO_PRIO_VALUE(IOPRIO_PRIO_CLASS(c->ioprio), p);
1719 c->ioprio_set = true;
1720
1721 unit_write_settingf(u, flags, name, "IOSchedulingPriority=%i", p);
1722 }
1723
1724 return 1;
1725
1726 } else if (streq(name, "WorkingDirectory")) {
1727 const char *s;
1728 bool missing_ok;
1729
1730 r = sd_bus_message_read(message, "s", &s);
1731 if (r < 0)
1732 return r;
1733
1734 if (s[0] == '-') {
1735 missing_ok = true;
1736 s++;
1737 } else
1738 missing_ok = false;
1739
1740 if (!isempty(s) && !streq(s, "~") && !path_is_absolute(s))
1741 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "WorkingDirectory= expects an absolute path or '~'");
1742
1743 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1744 if (streq(s, "~")) {
1745 c->working_directory = mfree(c->working_directory);
1746 c->working_directory_home = true;
1747 } else {
1748 r = free_and_strdup(&c->working_directory, empty_to_null(s));
1749 if (r < 0)
1750 return r;
1751
1752 c->working_directory_home = false;
1753 }
1754
1755 c->working_directory_missing_ok = missing_ok;
1756 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "WorkingDirectory=%s%s", missing_ok ? "-" : "", s);
1757 }
1758
1759 return 1;
1760
1761 } else if (STR_IN_SET(name,
1762 "StandardInputFileDescriptorName", "StandardOutputFileDescriptorName", "StandardErrorFileDescriptorName")) {
1763 const char *s;
1764
1765 r = sd_bus_message_read(message, "s", &s);
1766 if (r < 0)
1767 return r;
1768
1769 if (!isempty(s) && !fdname_is_valid(s))
1770 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid file descriptor name");
1771
1772 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1773
1774 if (streq(name, "StandardInputFileDescriptorName")) {
1775 r = free_and_strdup(c->stdio_fdname + STDIN_FILENO, empty_to_null(s));
1776 if (r < 0)
1777 return r;
1778
1779 c->std_input = EXEC_INPUT_NAMED_FD;
1780 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "StandardInput=fd:%s", exec_context_fdname(c, STDIN_FILENO));
1781
1782 } else if (streq(name, "StandardOutputFileDescriptorName")) {
1783 r = free_and_strdup(c->stdio_fdname + STDOUT_FILENO, empty_to_null(s));
1784 if (r < 0)
1785 return r;
1786
1787 c->std_output = EXEC_OUTPUT_NAMED_FD;
1788 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "StandardOutput=fd:%s", exec_context_fdname(c, STDOUT_FILENO));
1789
1790 } else {
1791 assert(streq(name, "StandardErrorFileDescriptorName"));
1792
1793 r = free_and_strdup(&c->stdio_fdname[STDERR_FILENO], empty_to_null(s));
1794 if (r < 0)
1795 return r;
1796
1797 c->std_error = EXEC_OUTPUT_NAMED_FD;
1798 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "StandardError=fd:%s", exec_context_fdname(c, STDERR_FILENO));
1799 }
1800 }
1801
1802 return 1;
1803
1804 } else if (STR_IN_SET(name,
1805 "StandardInputFile",
1806 "StandardOutputFile", "StandardOutputFileToAppend",
1807 "StandardErrorFile", "StandardErrorFileToAppend")) {
1808 const char *s;
1809
1810 r = sd_bus_message_read(message, "s", &s);
1811 if (r < 0)
1812 return r;
1813
1814 if (!isempty(s)) {
1815 if (!path_is_absolute(s))
1816 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not absolute", s);
1817 if (!path_is_normalized(s))
1818 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not normalized", s);
1819 }
1820
1821 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1822
1823 if (streq(name, "StandardInputFile")) {
1824 r = free_and_strdup(&c->stdio_file[STDIN_FILENO], empty_to_null(s));
1825 if (r < 0)
1826 return r;
1827
1828 c->std_input = EXEC_INPUT_FILE;
1829 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "StandardInput=file:%s", s);
1830
1831 } else if (STR_IN_SET(name, "StandardOutputFile", "StandardOutputFileToAppend")) {
1832 r = free_and_strdup(&c->stdio_file[STDOUT_FILENO], empty_to_null(s));
1833 if (r < 0)
1834 return r;
1835
1836 if (streq(name, "StandardOutputFile")) {
1837 c->std_output = EXEC_OUTPUT_FILE;
1838 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "StandardOutput=file:%s", s);
1839 } else {
1840 assert(streq(name, "StandardOutputFileToAppend"));
1841 c->std_output = EXEC_OUTPUT_FILE_APPEND;
1842 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "StandardOutput=append:%s", s);
1843 }
1844 } else {
1845 assert(STR_IN_SET(name, "StandardErrorFile", "StandardErrorFileToAppend"));
1846
1847 r = free_and_strdup(&c->stdio_file[STDERR_FILENO], empty_to_null(s));
1848 if (r < 0)
1849 return r;
1850
1851 if (streq(name, "StandardErrorFile")) {
1852 c->std_error = EXEC_OUTPUT_FILE;
1853 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "StandardError=file:%s", s);
1854 } else {
1855 assert(streq(name, "StandardErrorFileToAppend"));
1856 c->std_error = EXEC_OUTPUT_FILE_APPEND;
1857 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "StandardError=append:%s", s);
1858 }
1859 }
1860 }
1861
1862 return 1;
1863
1864 } else if (streq(name, "StandardInputData")) {
1865 const void *p;
1866 size_t sz;
1867
1868 r = sd_bus_message_read_array(message, 'y', &p, &sz);
1869 if (r < 0)
1870 return r;
1871
1872 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1873 _cleanup_free_ char *encoded = NULL;
1874
1875 if (sz == 0) {
1876 c->stdin_data = mfree(c->stdin_data);
1877 c->stdin_data_size = 0;
1878
1879 unit_write_settingf(u, flags, name, "StandardInputData=");
1880 } else {
1881 void *q;
1882 ssize_t n;
1883
1884 if (c->stdin_data_size + sz < c->stdin_data_size || /* check for overflow */
1885 c->stdin_data_size + sz > EXEC_STDIN_DATA_MAX)
1886 return -E2BIG;
1887
1888 n = base64mem(p, sz, &encoded);
1889 if (n < 0)
1890 return (int) n;
1891
1892 q = realloc(c->stdin_data, c->stdin_data_size + sz);
1893 if (!q)
1894 return -ENOMEM;
1895
1896 memcpy((uint8_t*) q + c->stdin_data_size, p, sz);
1897
1898 c->stdin_data = q;
1899 c->stdin_data_size += sz;
1900
1901 unit_write_settingf(u, flags, name, "StandardInputData=%s", encoded);
1902 }
1903 }
1904
1905 return 1;
1906
1907 } else if (streq(name, "Environment")) {
1908
1909 _cleanup_strv_free_ char **l = NULL;
1910
1911 r = sd_bus_message_read_strv(message, &l);
1912 if (r < 0)
1913 return r;
1914
1915 if (!strv_env_is_valid(l))
1916 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid environment block.");
1917
1918 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1919 if (strv_isempty(l)) {
1920 c->environment = strv_free(c->environment);
1921 unit_write_setting(u, flags, name, "Environment=");
1922 } else {
1923 _cleanup_free_ char *joined = NULL;
1924 char **e;
1925
1926 joined = unit_concat_strv(l, UNIT_ESCAPE_SPECIFIERS|UNIT_ESCAPE_C);
1927 if (!joined)
1928 return -ENOMEM;
1929
1930 e = strv_env_merge(2, c->environment, l);
1931 if (!e)
1932 return -ENOMEM;
1933
1934 strv_free_and_replace(c->environment, e);
1935 unit_write_settingf(u, flags, name, "Environment=%s", joined);
1936 }
1937 }
1938
1939 return 1;
1940
1941 } else if (streq(name, "UnsetEnvironment")) {
1942
1943 _cleanup_strv_free_ char **l = NULL;
1944
1945 r = sd_bus_message_read_strv(message, &l);
1946 if (r < 0)
1947 return r;
1948
1949 if (!strv_env_name_or_assignment_is_valid(l))
1950 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid UnsetEnvironment= list.");
1951
1952 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1953 if (strv_isempty(l)) {
1954 c->unset_environment = strv_free(c->unset_environment);
1955 unit_write_setting(u, flags, name, "UnsetEnvironment=");
1956 } else {
1957 _cleanup_free_ char *joined = NULL;
1958 char **e;
1959
1960 joined = unit_concat_strv(l, UNIT_ESCAPE_SPECIFIERS|UNIT_ESCAPE_C);
1961 if (!joined)
1962 return -ENOMEM;
1963
1964 e = strv_env_merge(2, c->unset_environment, l);
1965 if (!e)
1966 return -ENOMEM;
1967
1968 strv_free_and_replace(c->unset_environment, e);
1969 unit_write_settingf(u, flags, name, "UnsetEnvironment=%s", joined);
1970 }
1971 }
1972
1973 return 1;
1974
1975 } else if (streq(name, "OOMScoreAdjust")) {
1976 int oa;
1977
1978 r = sd_bus_message_read(message, "i", &oa);
1979 if (r < 0)
1980 return r;
1981
1982 if (!oom_score_adjust_is_valid(oa))
1983 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "OOM score adjust value out of range");
1984
1985 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1986 c->oom_score_adjust = oa;
1987 c->oom_score_adjust_set = true;
1988 unit_write_settingf(u, flags, name, "OOMScoreAdjust=%i", oa);
1989 }
1990
1991 return 1;
1992
1993 } else if (streq(name, "EnvironmentFiles")) {
1994
1995 _cleanup_free_ char *joined = NULL;
1996 _cleanup_fclose_ FILE *f = NULL;
1997 _cleanup_strv_free_ char **l = NULL;
1998 size_t size = 0;
1999 char **i;
2000
2001 r = sd_bus_message_enter_container(message, 'a', "(sb)");
2002 if (r < 0)
2003 return r;
2004
2005 f = open_memstream(&joined, &size);
2006 if (!f)
2007 return -ENOMEM;
2008
2009 (void) __fsetlocking(f, FSETLOCKING_BYCALLER);
2010
2011 fputs("EnvironmentFile=\n", f);
2012
2013 STRV_FOREACH(i, c->environment_files) {
2014 _cleanup_free_ char *q = NULL;
2015
2016 q = specifier_escape(*i);
2017 if (!q)
2018 return -ENOMEM;
2019
2020 fprintf(f, "EnvironmentFile=%s\n", q);
2021 }
2022
2023 while ((r = sd_bus_message_enter_container(message, 'r', "sb")) > 0) {
2024 const char *path;
2025 int b;
2026
2027 r = sd_bus_message_read(message, "sb", &path, &b);
2028 if (r < 0)
2029 return r;
2030
2031 r = sd_bus_message_exit_container(message);
2032 if (r < 0)
2033 return r;
2034
2035 if (!path_is_absolute(path))
2036 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not absolute.", path);
2037
2038 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
2039 _cleanup_free_ char *q = NULL;
2040 char *buf;
2041
2042 buf = strjoin(b ? "-" : "", path);
2043 if (!buf)
2044 return -ENOMEM;
2045
2046 q = specifier_escape(buf);
2047 if (!q) {
2048 free(buf);
2049 return -ENOMEM;
2050 }
2051
2052 fprintf(f, "EnvironmentFile=%s\n", q);
2053
2054 r = strv_consume(&l, buf);
2055 if (r < 0)
2056 return r;
2057 }
2058 }
2059 if (r < 0)
2060 return r;
2061
2062 r = sd_bus_message_exit_container(message);
2063 if (r < 0)
2064 return r;
2065
2066 r = fflush_and_check(f);
2067 if (r < 0)
2068 return r;
2069
2070 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
2071 if (strv_isempty(l)) {
2072 c->environment_files = strv_free(c->environment_files);
2073 unit_write_setting(u, flags, name, "EnvironmentFile=");
2074 } else {
2075 r = strv_extend_strv(&c->environment_files, l, true);
2076 if (r < 0)
2077 return r;
2078
2079 unit_write_setting(u, flags, name, joined);
2080 }
2081 }
2082
2083 return 1;
2084
2085 } else if (streq(name, "PassEnvironment")) {
2086
2087 _cleanup_strv_free_ char **l = NULL;
2088
2089 r = sd_bus_message_read_strv(message, &l);
2090 if (r < 0)
2091 return r;
2092
2093 if (!strv_env_name_is_valid(l))
2094 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid PassEnvironment= block.");
2095
2096 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
2097 if (strv_isempty(l)) {
2098 c->pass_environment = strv_free(c->pass_environment);
2099 unit_write_setting(u, flags, name, "PassEnvironment=");
2100 } else {
2101 _cleanup_free_ char *joined = NULL;
2102
2103 r = strv_extend_strv(&c->pass_environment, l, true);
2104 if (r < 0)
2105 return r;
2106
2107 /* We write just the new settings out to file, with unresolved specifiers. */
2108 joined = unit_concat_strv(l, UNIT_ESCAPE_SPECIFIERS);
2109 if (!joined)
2110 return -ENOMEM;
2111
2112 unit_write_settingf(u, flags, name, "PassEnvironment=%s", joined);
2113 }
2114 }
2115
2116 return 1;
2117
2118 } else if (STR_IN_SET(name, "ReadWriteDirectories", "ReadOnlyDirectories", "InaccessibleDirectories",
2119 "ReadWritePaths", "ReadOnlyPaths", "InaccessiblePaths")) {
2120 _cleanup_strv_free_ char **l = NULL;
2121 char ***dirs;
2122 char **p;
2123
2124 r = sd_bus_message_read_strv(message, &l);
2125 if (r < 0)
2126 return r;
2127
2128 STRV_FOREACH(p, l) {
2129 char *i = *p;
2130 size_t offset;
2131
2132 offset = i[0] == '-';
2133 offset += i[offset] == '+';
2134 if (!path_is_absolute(i + offset))
2135 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid %s", name);
2136
2137 path_simplify(i + offset, false);
2138 }
2139
2140 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
2141 if (STR_IN_SET(name, "ReadWriteDirectories", "ReadWritePaths"))
2142 dirs = &c->read_write_paths;
2143 else if (STR_IN_SET(name, "ReadOnlyDirectories", "ReadOnlyPaths"))
2144 dirs = &c->read_only_paths;
2145 else /* "InaccessiblePaths" */
2146 dirs = &c->inaccessible_paths;
2147
2148 if (strv_isempty(l)) {
2149 *dirs = strv_free(*dirs);
2150 unit_write_settingf(u, flags, name, "%s=", name);
2151 } else {
2152 _cleanup_free_ char *joined = NULL;
2153
2154 joined = unit_concat_strv(l, UNIT_ESCAPE_SPECIFIERS);
2155 if (!joined)
2156 return -ENOMEM;
2157
2158 r = strv_extend_strv(dirs, l, true);
2159 if (r < 0)
2160 return -ENOMEM;
2161
2162 unit_write_settingf(u, flags, name, "%s=%s", name, joined);
2163 }
2164 }
2165
2166 return 1;
2167
2168 } else if (STR_IN_SET(name, "RuntimeDirectory", "StateDirectory", "CacheDirectory", "LogsDirectory", "ConfigurationDirectory")) {
2169 _cleanup_strv_free_ char **l = NULL;
2170 char **p;
2171
2172 r = sd_bus_message_read_strv(message, &l);
2173 if (r < 0)
2174 return r;
2175
2176 STRV_FOREACH(p, l) {
2177 if (!path_is_normalized(*p))
2178 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "%s= path is not normalized: %s", name, *p);
2179
2180 if (path_is_absolute(*p))
2181 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "%s= path is absolute: %s", name, *p);
2182
2183 if (path_startswith(*p, "private"))
2184 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "%s= path can't be 'private': %s", name, *p);
2185 }
2186
2187 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
2188 char ***dirs = NULL;
2189 ExecDirectoryType i;
2190
2191 for (i = 0; i < _EXEC_DIRECTORY_TYPE_MAX; i++)
2192 if (streq(name, exec_directory_type_to_string(i))) {
2193 dirs = &c->directories[i].paths;
2194 break;
2195 }
2196
2197 assert(dirs);
2198
2199 if (strv_isempty(l)) {
2200 *dirs = strv_free(*dirs);
2201 unit_write_settingf(u, flags, name, "%s=", name);
2202 } else {
2203 _cleanup_free_ char *joined = NULL;
2204
2205 r = strv_extend_strv(dirs, l, true);
2206 if (r < 0)
2207 return -ENOMEM;
2208
2209 joined = unit_concat_strv(l, UNIT_ESCAPE_SPECIFIERS);
2210 if (!joined)
2211 return -ENOMEM;
2212
2213 unit_write_settingf(u, flags, name, "%s=%s", name, joined);
2214 }
2215 }
2216
2217 return 1;
2218
2219 } else if (STR_IN_SET(name, "AppArmorProfile", "SmackProcessLabel")) {
2220 int ignore;
2221 const char *s;
2222
2223 r = sd_bus_message_read(message, "(bs)", &ignore, &s);
2224 if (r < 0)
2225 return r;
2226
2227 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
2228 char **p;
2229 bool *b;
2230
2231 if (streq(name, "AppArmorProfile")) {
2232 p = &c->apparmor_profile;
2233 b = &c->apparmor_profile_ignore;
2234 } else { /* "SmackProcessLabel" */
2235 p = &c->smack_process_label;
2236 b = &c->smack_process_label_ignore;
2237 }
2238
2239 if (isempty(s)) {
2240 *p = mfree(*p);
2241 *b = false;
2242 } else {
2243 if (free_and_strdup(p, s) < 0)
2244 return -ENOMEM;
2245 *b = ignore;
2246 }
2247
2248 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "%s=%s%s", name, ignore ? "-" : "", strempty(s));
2249 }
2250
2251 return 1;
2252
2253 } else if (STR_IN_SET(name, "BindPaths", "BindReadOnlyPaths")) {
2254 const char *source, *destination;
2255 int ignore_enoent;
2256 uint64_t mount_flags;
2257 bool empty = true;
2258
2259 r = sd_bus_message_enter_container(message, 'a', "(ssbt)");
2260 if (r < 0)
2261 return r;
2262
2263 while ((r = sd_bus_message_read(message, "(ssbt)", &source, &destination, &ignore_enoent, &mount_flags)) > 0) {
2264
2265 if (!path_is_absolute(source))
2266 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Source path %s is not absolute.", source);
2267 if (!path_is_absolute(destination))
2268 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Destination path %s is not absolute.", destination);
2269 if (!IN_SET(mount_flags, 0, MS_REC))
2270 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unknown mount flags.");
2271
2272 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
2273 r = bind_mount_add(&c->bind_mounts, &c->n_bind_mounts,
2274 &(BindMount) {
2275 .source = strdup(source),
2276 .destination = strdup(destination),
2277 .read_only = !!strstr(name, "ReadOnly"),
2278 .recursive = !!(mount_flags & MS_REC),
2279 .ignore_enoent = ignore_enoent,
2280 });
2281 if (r < 0)
2282 return r;
2283
2284 unit_write_settingf(
2285 u, flags|UNIT_ESCAPE_SPECIFIERS, name,
2286 "%s=%s%s:%s:%s",
2287 name,
2288 ignore_enoent ? "-" : "",
2289 source,
2290 destination,
2291 (mount_flags & MS_REC) ? "rbind" : "norbind");
2292 }
2293
2294 empty = false;
2295 }
2296 if (r < 0)
2297 return r;
2298
2299 r = sd_bus_message_exit_container(message);
2300 if (r < 0)
2301 return r;
2302
2303 if (empty) {
2304 bind_mount_free_many(c->bind_mounts, c->n_bind_mounts);
2305 c->bind_mounts = NULL;
2306 c->n_bind_mounts = 0;
2307
2308 unit_write_settingf(u, flags, name, "%s=", name);
2309 }
2310
2311 return 1;
2312
2313 } else if (streq(name, "TemporaryFileSystem")) {
2314 const char *path, *options;
2315 bool empty = true;
2316
2317 r = sd_bus_message_enter_container(message, 'a', "(ss)");
2318 if (r < 0)
2319 return r;
2320
2321 while ((r = sd_bus_message_read(message, "(ss)", &path, &options)) > 0) {
2322
2323 if (!path_is_absolute(path))
2324 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Mount point %s is not absolute.", path);
2325
2326 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
2327 r = temporary_filesystem_add(&c->temporary_filesystems, &c->n_temporary_filesystems, path, options);
2328 if (r < 0)
2329 return r;
2330
2331 unit_write_settingf(
2332 u, flags|UNIT_ESCAPE_SPECIFIERS, name,
2333 "%s=%s:%s",
2334 name,
2335 path,
2336 options);
2337 }
2338
2339 empty = false;
2340 }
2341 if (r < 0)
2342 return r;
2343
2344 r = sd_bus_message_exit_container(message);
2345 if (r < 0)
2346 return r;
2347
2348 if (empty) {
2349 temporary_filesystem_free_many(c->temporary_filesystems, c->n_temporary_filesystems);
2350 c->temporary_filesystems = NULL;
2351 c->n_temporary_filesystems = 0;
2352
2353 unit_write_settingf(u, flags, name, "%s=", name);
2354 }
2355
2356 return 1;
2357
2358 } else if ((suffix = startswith(name, "Limit"))) {
2359 const char *soft = NULL;
2360 int ri;
2361
2362 ri = rlimit_from_string(suffix);
2363 if (ri < 0) {
2364 soft = endswith(suffix, "Soft");
2365 if (soft) {
2366 const char *n;
2367
2368 n = strndupa(suffix, soft - suffix);
2369 ri = rlimit_from_string(n);
2370 if (ri >= 0)
2371 name = strjoina("Limit", n);
2372 }
2373 }
2374
2375 if (ri >= 0) {
2376 uint64_t rl;
2377 rlim_t x;
2378
2379 r = sd_bus_message_read(message, "t", &rl);
2380 if (r < 0)
2381 return r;
2382
2383 if (rl == (uint64_t) -1)
2384 x = RLIM_INFINITY;
2385 else {
2386 x = (rlim_t) rl;
2387
2388 if ((uint64_t) x != rl)
2389 return -ERANGE;
2390 }
2391
2392 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
2393 _cleanup_free_ char *f = NULL;
2394 struct rlimit nl;
2395
2396 if (c->rlimit[ri]) {
2397 nl = *c->rlimit[ri];
2398
2399 if (soft)
2400 nl.rlim_cur = x;
2401 else
2402 nl.rlim_max = x;
2403 } else
2404 /* When the resource limit is not initialized yet, then assign the value to both fields */
2405 nl = (struct rlimit) {
2406 .rlim_cur = x,
2407 .rlim_max = x,
2408 };
2409
2410 r = rlimit_format(&nl, &f);
2411 if (r < 0)
2412 return r;
2413
2414 if (c->rlimit[ri])
2415 *c->rlimit[ri] = nl;
2416 else {
2417 c->rlimit[ri] = newdup(struct rlimit, &nl, 1);
2418 if (!c->rlimit[ri])
2419 return -ENOMEM;
2420 }
2421
2422 unit_write_settingf(u, flags, name, "%s=%s", name, f);
2423 }
2424
2425 return 1;
2426 }
2427
2428 }
2429
2430 return 0;
2431 }
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