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Split out part of mount-util.c into mountpoint-util.c
[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
781 /* Obsolete/redundant properties: */
782 SD_BUS_PROPERTY("Capabilities", "s", property_get_empty_string, 0, SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
783 SD_BUS_PROPERTY("ReadWriteDirectories", "as", NULL, offsetof(ExecContext, read_write_paths), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
784 SD_BUS_PROPERTY("ReadOnlyDirectories", "as", NULL, offsetof(ExecContext, read_only_paths), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
785 SD_BUS_PROPERTY("InaccessibleDirectories", "as", NULL, offsetof(ExecContext, inaccessible_paths), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
786 SD_BUS_PROPERTY("IOScheduling", "i", property_get_ioprio, 0, SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
787
788 SD_BUS_VTABLE_END
789 };
790
791 static int append_exec_command(sd_bus_message *reply, ExecCommand *c) {
792 int r;
793
794 assert(reply);
795 assert(c);
796
797 if (!c->path)
798 return 0;
799
800 r = sd_bus_message_open_container(reply, 'r', "sasbttttuii");
801 if (r < 0)
802 return r;
803
804 r = sd_bus_message_append(reply, "s", c->path);
805 if (r < 0)
806 return r;
807
808 r = sd_bus_message_append_strv(reply, c->argv);
809 if (r < 0)
810 return r;
811
812 r = sd_bus_message_append(reply, "bttttuii",
813 !!(c->flags & EXEC_COMMAND_IGNORE_FAILURE),
814 c->exec_status.start_timestamp.realtime,
815 c->exec_status.start_timestamp.monotonic,
816 c->exec_status.exit_timestamp.realtime,
817 c->exec_status.exit_timestamp.monotonic,
818 (uint32_t) c->exec_status.pid,
819 (int32_t) c->exec_status.code,
820 (int32_t) c->exec_status.status);
821 if (r < 0)
822 return r;
823
824 return sd_bus_message_close_container(reply);
825 }
826
827 int bus_property_get_exec_command(
828 sd_bus *bus,
829 const char *path,
830 const char *interface,
831 const char *property,
832 sd_bus_message *reply,
833 void *userdata,
834 sd_bus_error *ret_error) {
835
836 ExecCommand *c = (ExecCommand*) userdata;
837 int r;
838
839 assert(bus);
840 assert(reply);
841
842 r = sd_bus_message_open_container(reply, 'a', "(sasbttttuii)");
843 if (r < 0)
844 return r;
845
846 r = append_exec_command(reply, c);
847 if (r < 0)
848 return r;
849
850 return sd_bus_message_close_container(reply);
851 }
852
853 int bus_property_get_exec_command_list(
854 sd_bus *bus,
855 const char *path,
856 const char *interface,
857 const char *property,
858 sd_bus_message *reply,
859 void *userdata,
860 sd_bus_error *ret_error) {
861
862 ExecCommand *c = *(ExecCommand**) userdata;
863 int r;
864
865 assert(bus);
866 assert(reply);
867
868 r = sd_bus_message_open_container(reply, 'a', "(sasbttttuii)");
869 if (r < 0)
870 return r;
871
872 LIST_FOREACH(command, c, c) {
873 r = append_exec_command(reply, c);
874 if (r < 0)
875 return r;
876 }
877
878 return sd_bus_message_close_container(reply);
879 }
880
881 int bus_set_transient_exec_command(
882 Unit *u,
883 const char *name,
884 ExecCommand **exec_command,
885 sd_bus_message *message,
886 UnitWriteFlags flags,
887 sd_bus_error *error) {
888 unsigned n = 0;
889 int r;
890
891 r = sd_bus_message_enter_container(message, 'a', "(sasb)");
892 if (r < 0)
893 return r;
894
895 while ((r = sd_bus_message_enter_container(message, 'r', "sasb")) > 0) {
896 _cleanup_strv_free_ char **argv = NULL;
897 const char *path;
898 int b;
899
900 r = sd_bus_message_read(message, "s", &path);
901 if (r < 0)
902 return r;
903
904 if (!path_is_absolute(path))
905 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not absolute.", path);
906
907 r = sd_bus_message_read_strv(message, &argv);
908 if (r < 0)
909 return r;
910
911 r = sd_bus_message_read(message, "b", &b);
912 if (r < 0)
913 return r;
914
915 r = sd_bus_message_exit_container(message);
916 if (r < 0)
917 return r;
918
919 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
920 ExecCommand *c;
921
922 c = new0(ExecCommand, 1);
923 if (!c)
924 return -ENOMEM;
925
926 c->path = strdup(path);
927 if (!c->path) {
928 free(c);
929 return -ENOMEM;
930 }
931
932 c->argv = TAKE_PTR(argv);
933
934 c->flags = b ? EXEC_COMMAND_IGNORE_FAILURE : 0;
935
936 path_simplify(c->path, false);
937 exec_command_append_list(exec_command, c);
938 }
939
940 n++;
941 }
942 if (r < 0)
943 return r;
944
945 r = sd_bus_message_exit_container(message);
946 if (r < 0)
947 return r;
948
949 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
950 _cleanup_free_ char *buf = NULL;
951 _cleanup_fclose_ FILE *f = NULL;
952 ExecCommand *c;
953 size_t size = 0;
954
955 if (n == 0)
956 *exec_command = exec_command_free_list(*exec_command);
957
958 f = open_memstream(&buf, &size);
959 if (!f)
960 return -ENOMEM;
961
962 (void) __fsetlocking(f, FSETLOCKING_BYCALLER);
963
964 fputs("ExecStart=\n", f);
965
966 LIST_FOREACH(command, c, *exec_command) {
967 _cleanup_free_ char *a = NULL, *t = NULL;
968 const char *p;
969
970 p = unit_escape_setting(c->path, UNIT_ESCAPE_C|UNIT_ESCAPE_SPECIFIERS, &t);
971 if (!p)
972 return -ENOMEM;
973
974 a = unit_concat_strv(c->argv, UNIT_ESCAPE_C|UNIT_ESCAPE_SPECIFIERS);
975 if (!a)
976 return -ENOMEM;
977
978 fprintf(f, "%s=%s@%s %s\n",
979 name,
980 c->flags & EXEC_COMMAND_IGNORE_FAILURE ? "-" : "",
981 p,
982 a);
983 }
984
985 r = fflush_and_check(f);
986 if (r < 0)
987 return r;
988
989 unit_write_setting(u, flags, name, buf);
990 }
991
992 return 1;
993 }
994
995 static int parse_personality(const char *s, unsigned long *p) {
996 unsigned long v;
997
998 assert(p);
999
1000 v = personality_from_string(s);
1001 if (v == PERSONALITY_INVALID)
1002 return -EINVAL;
1003
1004 *p = v;
1005 return 0;
1006 }
1007
1008 static const char* mount_propagation_flags_to_string_with_check(unsigned long n) {
1009 if (!IN_SET(n, 0, MS_SHARED, MS_PRIVATE, MS_SLAVE))
1010 return NULL;
1011
1012 return mount_propagation_flags_to_string(n);
1013 }
1014
1015 static BUS_DEFINE_SET_TRANSIENT(nsec, "t", uint64_t, nsec_t, NSEC_FMT);
1016 static BUS_DEFINE_SET_TRANSIENT_IS_VALID(log_level, "i", int32_t, int, "%" PRIi32, log_level_is_valid);
1017 #if HAVE_SECCOMP
1018 static BUS_DEFINE_SET_TRANSIENT_IS_VALID(errno, "i", int32_t, int, "%" PRIi32, errno_is_valid);
1019 #endif
1020 static BUS_DEFINE_SET_TRANSIENT_PARSE(std_input, ExecInput, exec_input_from_string);
1021 static BUS_DEFINE_SET_TRANSIENT_PARSE(std_output, ExecOutput, exec_output_from_string);
1022 static BUS_DEFINE_SET_TRANSIENT_PARSE(utmp_mode, ExecUtmpMode, exec_utmp_mode_from_string);
1023 static BUS_DEFINE_SET_TRANSIENT_PARSE(protect_system, ProtectSystem, protect_system_from_string);
1024 static BUS_DEFINE_SET_TRANSIENT_PARSE(protect_home, ProtectHome, protect_home_from_string);
1025 static BUS_DEFINE_SET_TRANSIENT_PARSE(keyring_mode, ExecKeyringMode, exec_keyring_mode_from_string);
1026 static BUS_DEFINE_SET_TRANSIENT_PARSE(preserve_mode, ExecPreserveMode, exec_preserve_mode_from_string);
1027 static BUS_DEFINE_SET_TRANSIENT_PARSE_PTR(personality, unsigned long, parse_personality);
1028 static BUS_DEFINE_SET_TRANSIENT_TO_STRING_ALLOC(secure_bits, "i", int32_t, int, "%" PRIi32, secure_bits_to_string_alloc_with_check);
1029 static BUS_DEFINE_SET_TRANSIENT_TO_STRING_ALLOC(capability, "t", uint64_t, uint64_t, "%" PRIu64, capability_set_to_string_alloc);
1030 static BUS_DEFINE_SET_TRANSIENT_TO_STRING_ALLOC(namespace_flag, "t", uint64_t, unsigned long, "%" PRIu64, namespace_flags_to_string);
1031 static BUS_DEFINE_SET_TRANSIENT_TO_STRING(mount_flags, "t", uint64_t, unsigned long, "%" PRIu64, mount_propagation_flags_to_string_with_check);
1032
1033 int bus_exec_context_set_transient_property(
1034 Unit *u,
1035 ExecContext *c,
1036 const char *name,
1037 sd_bus_message *message,
1038 UnitWriteFlags flags,
1039 sd_bus_error *error) {
1040
1041 const char *suffix;
1042 int r;
1043
1044 assert(u);
1045 assert(c);
1046 assert(name);
1047 assert(message);
1048
1049 flags |= UNIT_PRIVATE;
1050
1051 if (streq(name, "User"))
1052 return bus_set_transient_user(u, name, &c->user, message, flags, error);
1053
1054 if (streq(name, "Group"))
1055 return bus_set_transient_user(u, name, &c->group, message, flags, error);
1056
1057 if (streq(name, "TTYPath"))
1058 return bus_set_transient_path(u, name, &c->tty_path, message, flags, error);
1059
1060 if (streq(name, "RootImage"))
1061 return bus_set_transient_path(u, name, &c->root_image, message, flags, error);
1062
1063 if (streq(name, "RootDirectory"))
1064 return bus_set_transient_path(u, name, &c->root_directory, message, flags, error);
1065
1066 if (streq(name, "SyslogIdentifier"))
1067 return bus_set_transient_string(u, name, &c->syslog_identifier, message, flags, error);
1068
1069 if (streq(name, "LogLevelMax"))
1070 return bus_set_transient_log_level(u, name, &c->log_level_max, message, flags, error);
1071
1072 if (streq(name, "LogRateLimitIntervalUSec"))
1073 return bus_set_transient_usec(u, name, &c->log_rate_limit_interval_usec, message, flags, error);
1074
1075 if (streq(name, "LogRateLimitBurst"))
1076 return bus_set_transient_unsigned(u, name, &c->log_rate_limit_burst, message, flags, error);
1077
1078 if (streq(name, "Personality"))
1079 return bus_set_transient_personality(u, name, &c->personality, message, flags, error);
1080
1081 if (streq(name, "StandardInput"))
1082 return bus_set_transient_std_input(u, name, &c->std_input, message, flags, error);
1083
1084 if (streq(name, "StandardOutput"))
1085 return bus_set_transient_std_output(u, name, &c->std_output, message, flags, error);
1086
1087 if (streq(name, "StandardError"))
1088 return bus_set_transient_std_output(u, name, &c->std_error, message, flags, error);
1089
1090 if (streq(name, "IgnoreSIGPIPE"))
1091 return bus_set_transient_bool(u, name, &c->ignore_sigpipe, message, flags, error);
1092
1093 if (streq(name, "TTYVHangup"))
1094 return bus_set_transient_bool(u, name, &c->tty_vhangup, message, flags, error);
1095
1096 if (streq(name, "TTYReset"))
1097 return bus_set_transient_bool(u, name, &c->tty_reset, message, flags, error);
1098
1099 if (streq(name, "TTYVTDisallocate"))
1100 return bus_set_transient_bool(u, name, &c->tty_vt_disallocate, message, flags, error);
1101
1102 if (streq(name, "PrivateTmp"))
1103 return bus_set_transient_bool(u, name, &c->private_tmp, message, flags, error);
1104
1105 if (streq(name, "PrivateDevices"))
1106 return bus_set_transient_bool(u, name, &c->private_devices, message, flags, error);
1107
1108 if (streq(name, "PrivateMounts"))
1109 return bus_set_transient_bool(u, name, &c->private_mounts, message, flags, error);
1110
1111 if (streq(name, "PrivateNetwork"))
1112 return bus_set_transient_bool(u, name, &c->private_network, message, flags, error);
1113
1114 if (streq(name, "PrivateUsers"))
1115 return bus_set_transient_bool(u, name, &c->private_users, message, flags, error);
1116
1117 if (streq(name, "NoNewPrivileges"))
1118 return bus_set_transient_bool(u, name, &c->no_new_privileges, message, flags, error);
1119
1120 if (streq(name, "SyslogLevelPrefix"))
1121 return bus_set_transient_bool(u, name, &c->syslog_level_prefix, message, flags, error);
1122
1123 if (streq(name, "MemoryDenyWriteExecute"))
1124 return bus_set_transient_bool(u, name, &c->memory_deny_write_execute, message, flags, error);
1125
1126 if (streq(name, "RestrictRealtime"))
1127 return bus_set_transient_bool(u, name, &c->restrict_realtime, message, flags, error);
1128
1129 if (streq(name, "DynamicUser"))
1130 return bus_set_transient_bool(u, name, &c->dynamic_user, message, flags, error);
1131
1132 if (streq(name, "RemoveIPC"))
1133 return bus_set_transient_bool(u, name, &c->remove_ipc, message, flags, error);
1134
1135 if (streq(name, "ProtectKernelTunables"))
1136 return bus_set_transient_bool(u, name, &c->protect_kernel_tunables, message, flags, error);
1137
1138 if (streq(name, "ProtectKernelModules"))
1139 return bus_set_transient_bool(u, name, &c->protect_kernel_modules, message, flags, error);
1140
1141 if (streq(name, "ProtectControlGroups"))
1142 return bus_set_transient_bool(u, name, &c->protect_control_groups, message, flags, error);
1143
1144 if (streq(name, "MountAPIVFS"))
1145 return bus_set_transient_bool(u, name, &c->mount_apivfs, message, flags, error);
1146
1147 if (streq(name, "CPUSchedulingResetOnFork"))
1148 return bus_set_transient_bool(u, name, &c->cpu_sched_reset_on_fork, message, flags, error);
1149
1150 if (streq(name, "NonBlocking"))
1151 return bus_set_transient_bool(u, name, &c->non_blocking, message, flags, error);
1152
1153 if (streq(name, "LockPersonality"))
1154 return bus_set_transient_bool(u, name, &c->lock_personality, message, flags, error);
1155
1156 if (streq(name, "UtmpIdentifier"))
1157 return bus_set_transient_string(u, name, &c->utmp_id, message, flags, error);
1158
1159 if (streq(name, "UtmpMode"))
1160 return bus_set_transient_utmp_mode(u, name, &c->utmp_mode, message, flags, error);
1161
1162 if (streq(name, "PAMName"))
1163 return bus_set_transient_string(u, name, &c->pam_name, message, flags, error);
1164
1165 if (streq(name, "TimerSlackNSec"))
1166 return bus_set_transient_nsec(u, name, &c->timer_slack_nsec, message, flags, error);
1167
1168 if (streq(name, "ProtectSystem"))
1169 return bus_set_transient_protect_system(u, name, &c->protect_system, message, flags, error);
1170
1171 if (streq(name, "ProtectHome"))
1172 return bus_set_transient_protect_home(u, name, &c->protect_home, message, flags, error);
1173
1174 if (streq(name, "KeyringMode"))
1175 return bus_set_transient_keyring_mode(u, name, &c->keyring_mode, message, flags, error);
1176
1177 if (streq(name, "RuntimeDirectoryPreserve"))
1178 return bus_set_transient_preserve_mode(u, name, &c->runtime_directory_preserve_mode, message, flags, error);
1179
1180 if (streq(name, "UMask"))
1181 return bus_set_transient_mode_t(u, name, &c->umask, message, flags, error);
1182
1183 if (streq(name, "RuntimeDirectoryMode"))
1184 return bus_set_transient_mode_t(u, name, &c->directories[EXEC_DIRECTORY_RUNTIME].mode, message, flags, error);
1185
1186 if (streq(name, "StateDirectoryMode"))
1187 return bus_set_transient_mode_t(u, name, &c->directories[EXEC_DIRECTORY_STATE].mode, message, flags, error);
1188
1189 if (streq(name, "CacheDirectoryMode"))
1190 return bus_set_transient_mode_t(u, name, &c->directories[EXEC_DIRECTORY_CACHE].mode, message, flags, error);
1191
1192 if (streq(name, "LogsDirectoryMode"))
1193 return bus_set_transient_mode_t(u, name, &c->directories[EXEC_DIRECTORY_LOGS].mode, message, flags, error);
1194
1195 if (streq(name, "ConfigurationDirectoryMode"))
1196 return bus_set_transient_mode_t(u, name, &c->directories[EXEC_DIRECTORY_CONFIGURATION].mode, message, flags, error);
1197
1198 if (streq(name, "SELinuxContext"))
1199 return bus_set_transient_string(u, name, &c->selinux_context, message, flags, error);
1200
1201 if (streq(name, "SecureBits"))
1202 return bus_set_transient_secure_bits(u, name, &c->secure_bits, message, flags, error);
1203
1204 if (streq(name, "CapabilityBoundingSet"))
1205 return bus_set_transient_capability(u, name, &c->capability_bounding_set, message, flags, error);
1206
1207 if (streq(name, "AmbientCapabilities"))
1208 return bus_set_transient_capability(u, name, &c->capability_ambient_set, message, flags, error);
1209
1210 if (streq(name, "RestrictNamespaces"))
1211 return bus_set_transient_namespace_flag(u, name, &c->restrict_namespaces, message, flags, error);
1212
1213 if (streq(name, "MountFlags"))
1214 return bus_set_transient_mount_flags(u, name, &c->mount_flags, message, flags, error);
1215
1216 if (streq(name, "SupplementaryGroups")) {
1217 _cleanup_strv_free_ char **l = NULL;
1218 char **p;
1219
1220 r = sd_bus_message_read_strv(message, &l);
1221 if (r < 0)
1222 return r;
1223
1224 STRV_FOREACH(p, l) {
1225 if (!isempty(*p) && !valid_user_group_name_or_id(*p))
1226 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid supplementary group names");
1227 }
1228
1229 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1230 if (strv_isempty(l)) {
1231 c->supplementary_groups = strv_free(c->supplementary_groups);
1232 unit_write_settingf(u, flags, name, "%s=", name);
1233 } else {
1234 _cleanup_free_ char *joined = NULL;
1235
1236 r = strv_extend_strv(&c->supplementary_groups, l, true);
1237 if (r < 0)
1238 return -ENOMEM;
1239
1240 joined = strv_join(c->supplementary_groups, " ");
1241 if (!joined)
1242 return -ENOMEM;
1243
1244 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "%s=%s", name, joined);
1245 }
1246 }
1247
1248 return 1;
1249
1250 } else if (streq(name, "SyslogLevel")) {
1251 int32_t level;
1252
1253 r = sd_bus_message_read(message, "i", &level);
1254 if (r < 0)
1255 return r;
1256
1257 if (!log_level_is_valid(level))
1258 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Log level value out of range");
1259
1260 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1261 c->syslog_priority = (c->syslog_priority & LOG_FACMASK) | level;
1262 unit_write_settingf(u, flags, name, "SyslogLevel=%i", level);
1263 }
1264
1265 return 1;
1266
1267 } else if (streq(name, "SyslogFacility")) {
1268 int32_t facility;
1269
1270 r = sd_bus_message_read(message, "i", &facility);
1271 if (r < 0)
1272 return r;
1273
1274 if (!log_facility_unshifted_is_valid(facility))
1275 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Log facility value out of range");
1276
1277 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1278 c->syslog_priority = (facility << 3) | LOG_PRI(c->syslog_priority);
1279 unit_write_settingf(u, flags, name, "SyslogFacility=%i", facility);
1280 }
1281
1282 return 1;
1283
1284 } else if (streq(name, "LogExtraFields")) {
1285 size_t n = 0;
1286
1287 r = sd_bus_message_enter_container(message, 'a', "ay");
1288 if (r < 0)
1289 return r;
1290
1291 for (;;) {
1292 _cleanup_free_ void *copy = NULL;
1293 struct iovec *t;
1294 const char *eq;
1295 const void *p;
1296 size_t sz;
1297
1298 /* Note that we expect a byte array for each field, instead of a string. That's because on the
1299 * lower-level journal fields can actually contain binary data and are not restricted to text,
1300 * and we should not "lose precision" in our types on the way. That said, I am pretty sure
1301 * actually encoding binary data as unit metadata is not a good idea. Hence we actually refuse
1302 * any actual binary data, and only accept UTF-8. This allows us to eventually lift this
1303 * limitation, should a good, valid usecase arise. */
1304
1305 r = sd_bus_message_read_array(message, 'y', &p, &sz);
1306 if (r < 0)
1307 return r;
1308 if (r == 0)
1309 break;
1310
1311 if (memchr(p, 0, sz))
1312 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Journal field contains zero byte");
1313
1314 eq = memchr(p, '=', sz);
1315 if (!eq)
1316 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Journal field contains no '=' character");
1317 if (!journal_field_valid(p, eq - (const char*) p, false))
1318 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Journal field invalid");
1319
1320 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1321 t = reallocarray(c->log_extra_fields, c->n_log_extra_fields+1, sizeof(struct iovec));
1322 if (!t)
1323 return -ENOMEM;
1324 c->log_extra_fields = t;
1325 }
1326
1327 copy = malloc(sz + 1);
1328 if (!copy)
1329 return -ENOMEM;
1330
1331 memcpy(copy, p, sz);
1332 ((uint8_t*) copy)[sz] = 0;
1333
1334 if (!utf8_is_valid(copy))
1335 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Journal field is not valid UTF-8");
1336
1337 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1338 c->log_extra_fields[c->n_log_extra_fields++] = IOVEC_MAKE(copy, sz);
1339 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS|UNIT_ESCAPE_C, name, "LogExtraFields=%s", (char*) copy);
1340
1341 copy = NULL;
1342 }
1343
1344 n++;
1345 }
1346
1347 r = sd_bus_message_exit_container(message);
1348 if (r < 0)
1349 return r;
1350
1351 if (!UNIT_WRITE_FLAGS_NOOP(flags) && n == 0) {
1352 exec_context_free_log_extra_fields(c);
1353 unit_write_setting(u, flags, name, "LogExtraFields=");
1354 }
1355
1356 return 1;
1357 }
1358
1359 #if HAVE_SECCOMP
1360
1361 if (streq(name, "SystemCallErrorNumber"))
1362 return bus_set_transient_errno(u, name, &c->syscall_errno, message, flags, error);
1363
1364 if (streq(name, "SystemCallFilter")) {
1365 int whitelist;
1366 _cleanup_strv_free_ char **l = NULL;
1367
1368 r = sd_bus_message_enter_container(message, 'r', "bas");
1369 if (r < 0)
1370 return r;
1371
1372 r = sd_bus_message_read(message, "b", &whitelist);
1373 if (r < 0)
1374 return r;
1375
1376 r = sd_bus_message_read_strv(message, &l);
1377 if (r < 0)
1378 return r;
1379
1380 r = sd_bus_message_exit_container(message);
1381 if (r < 0)
1382 return r;
1383
1384 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1385 _cleanup_free_ char *joined = NULL;
1386 bool invert = !whitelist;
1387 char **s;
1388
1389 if (strv_isempty(l)) {
1390 c->syscall_whitelist = false;
1391 c->syscall_filter = hashmap_free(c->syscall_filter);
1392
1393 unit_write_settingf(u, flags, name, "SystemCallFilter=");
1394 return 1;
1395 }
1396
1397 if (!c->syscall_filter) {
1398 c->syscall_filter = hashmap_new(NULL);
1399 if (!c->syscall_filter)
1400 return log_oom();
1401
1402 c->syscall_whitelist = whitelist;
1403
1404 if (c->syscall_whitelist) {
1405 r = seccomp_parse_syscall_filter("@default", -1, c->syscall_filter, SECCOMP_PARSE_WHITELIST | (invert ? SECCOMP_PARSE_INVERT : 0));
1406 if (r < 0)
1407 return r;
1408 }
1409 }
1410
1411 STRV_FOREACH(s, l) {
1412 _cleanup_free_ char *n = NULL;
1413 int e;
1414
1415 r = parse_syscall_and_errno(*s, &n, &e);
1416 if (r < 0)
1417 return r;
1418
1419 r = seccomp_parse_syscall_filter(n, e, c->syscall_filter, (invert ? SECCOMP_PARSE_INVERT : 0) | (c->syscall_whitelist ? SECCOMP_PARSE_WHITELIST : 0));
1420 if (r < 0)
1421 return r;
1422 }
1423
1424 joined = strv_join(l, " ");
1425 if (!joined)
1426 return -ENOMEM;
1427
1428 unit_write_settingf(u, flags, name, "SystemCallFilter=%s%s", whitelist ? "" : "~", joined);
1429 }
1430
1431 return 1;
1432
1433 } else if (streq(name, "SystemCallArchitectures")) {
1434 _cleanup_strv_free_ char **l = NULL;
1435
1436 r = sd_bus_message_read_strv(message, &l);
1437 if (r < 0)
1438 return r;
1439
1440 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1441 _cleanup_free_ char *joined = NULL;
1442
1443 if (strv_isempty(l))
1444 c->syscall_archs = set_free(c->syscall_archs);
1445 else {
1446 char **s;
1447
1448 r = set_ensure_allocated(&c->syscall_archs, NULL);
1449 if (r < 0)
1450 return r;
1451
1452 STRV_FOREACH(s, l) {
1453 uint32_t a;
1454
1455 r = seccomp_arch_from_string(*s, &a);
1456 if (r < 0)
1457 return r;
1458
1459 r = set_put(c->syscall_archs, UINT32_TO_PTR(a + 1));
1460 if (r < 0)
1461 return r;
1462 }
1463
1464 }
1465
1466 joined = strv_join(l, " ");
1467 if (!joined)
1468 return -ENOMEM;
1469
1470 unit_write_settingf(u, flags, name, "%s=%s", name, joined);
1471 }
1472
1473 return 1;
1474
1475 } else if (streq(name, "RestrictAddressFamilies")) {
1476 int whitelist;
1477 _cleanup_strv_free_ char **l = NULL;
1478
1479 r = sd_bus_message_enter_container(message, 'r', "bas");
1480 if (r < 0)
1481 return r;
1482
1483 r = sd_bus_message_read(message, "b", &whitelist);
1484 if (r < 0)
1485 return r;
1486
1487 r = sd_bus_message_read_strv(message, &l);
1488 if (r < 0)
1489 return r;
1490
1491 r = sd_bus_message_exit_container(message);
1492 if (r < 0)
1493 return r;
1494
1495 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1496 _cleanup_free_ char *joined = NULL;
1497 bool invert = !whitelist;
1498 char **s;
1499
1500 if (strv_isempty(l)) {
1501 c->address_families_whitelist = false;
1502 c->address_families = set_free(c->address_families);
1503
1504 unit_write_settingf(u, flags, name, "RestrictAddressFamilies=");
1505 return 1;
1506 }
1507
1508 if (!c->address_families) {
1509 c->address_families = set_new(NULL);
1510 if (!c->address_families)
1511 return log_oom();
1512
1513 c->address_families_whitelist = whitelist;
1514 }
1515
1516 STRV_FOREACH(s, l) {
1517 int af;
1518
1519 af = af_from_name(*s);
1520 if (af < 0)
1521 return af;
1522
1523 if (!invert == c->address_families_whitelist) {
1524 r = set_put(c->address_families, INT_TO_PTR(af));
1525 if (r < 0)
1526 return r;
1527 } else
1528 (void) set_remove(c->address_families, INT_TO_PTR(af));
1529 }
1530
1531 joined = strv_join(l, " ");
1532 if (!joined)
1533 return -ENOMEM;
1534
1535 unit_write_settingf(u, flags, name, "RestrictAddressFamilies=%s%s", whitelist ? "" : "~", joined);
1536 }
1537
1538 return 1;
1539 }
1540 #endif
1541 if (streq(name, "CPUAffinity")) {
1542 const void *a;
1543 size_t n = 0;
1544
1545 r = sd_bus_message_read_array(message, 'y', &a, &n);
1546 if (r < 0)
1547 return r;
1548
1549 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1550 if (n == 0) {
1551 c->cpuset = cpu_set_mfree(c->cpuset);
1552 c->cpuset_ncpus = 0;
1553 unit_write_settingf(u, flags, name, "%s=", name);
1554 } else {
1555 _cleanup_free_ char *str = NULL;
1556 size_t allocated = 0, len = 0, i, ncpus;
1557
1558 ncpus = CPU_SIZE_TO_NUM(n);
1559
1560 for (i = 0; i < ncpus; i++) {
1561 _cleanup_free_ char *p = NULL;
1562 size_t add;
1563
1564 if (!CPU_ISSET_S(i, n, (cpu_set_t*) a))
1565 continue;
1566
1567 r = asprintf(&p, "%zu", i);
1568 if (r < 0)
1569 return -ENOMEM;
1570
1571 add = strlen(p);
1572
1573 if (!GREEDY_REALLOC(str, allocated, len + add + 2))
1574 return -ENOMEM;
1575
1576 strcpy(mempcpy(str + len, p, add), " ");
1577 len += add + 1;
1578 }
1579
1580 if (len != 0)
1581 str[len - 1] = '\0';
1582
1583 if (!c->cpuset || c->cpuset_ncpus < ncpus) {
1584 cpu_set_t *cpuset;
1585
1586 cpuset = CPU_ALLOC(ncpus);
1587 if (!cpuset)
1588 return -ENOMEM;
1589
1590 CPU_ZERO_S(n, cpuset);
1591 if (c->cpuset) {
1592 CPU_OR_S(CPU_ALLOC_SIZE(c->cpuset_ncpus), cpuset, c->cpuset, (cpu_set_t*) a);
1593 CPU_FREE(c->cpuset);
1594 } else
1595 CPU_OR_S(n, cpuset, cpuset, (cpu_set_t*) a);
1596
1597 c->cpuset = cpuset;
1598 c->cpuset_ncpus = ncpus;
1599 } else
1600 CPU_OR_S(n, c->cpuset, c->cpuset, (cpu_set_t*) a);
1601
1602 unit_write_settingf(u, flags, name, "%s=%s", name, str);
1603 }
1604 }
1605
1606 return 1;
1607
1608 } else if (streq(name, "Nice")) {
1609 int32_t q;
1610
1611 r = sd_bus_message_read(message, "i", &q);
1612 if (r < 0)
1613 return r;
1614
1615 if (!nice_is_valid(q))
1616 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid Nice value: %i", q);
1617
1618 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1619 c->nice = q;
1620 c->nice_set = true;
1621
1622 unit_write_settingf(u, flags, name, "Nice=%i", q);
1623 }
1624
1625 return 1;
1626
1627 } else if (streq(name, "CPUSchedulingPolicy")) {
1628 int32_t q;
1629
1630 r = sd_bus_message_read(message, "i", &q);
1631 if (r < 0)
1632 return r;
1633
1634 if (!sched_policy_is_valid(q))
1635 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid CPU scheduling policy: %i", q);
1636
1637 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1638 _cleanup_free_ char *s = NULL;
1639
1640 r = sched_policy_to_string_alloc(q, &s);
1641 if (r < 0)
1642 return r;
1643
1644 c->cpu_sched_policy = q;
1645 c->cpu_sched_priority = CLAMP(c->cpu_sched_priority, sched_get_priority_min(q), sched_get_priority_max(q));
1646 c->cpu_sched_set = true;
1647
1648 unit_write_settingf(u, flags, name, "CPUSchedulingPolicy=%s", s);
1649 }
1650
1651 return 1;
1652
1653 } else if (streq(name, "CPUSchedulingPriority")) {
1654 int32_t p, min, max;
1655
1656 r = sd_bus_message_read(message, "i", &p);
1657 if (r < 0)
1658 return r;
1659
1660 min = sched_get_priority_min(c->cpu_sched_policy);
1661 max = sched_get_priority_max(c->cpu_sched_policy);
1662 if (p < min || p > max)
1663 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid CPU scheduling priority: %i", p);
1664
1665 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1666 c->cpu_sched_priority = p;
1667 c->cpu_sched_set = true;
1668
1669 unit_write_settingf(u, flags, name, "CPUSchedulingPriority=%i", p);
1670 }
1671
1672 return 1;
1673
1674 } else if (streq(name, "IOSchedulingClass")) {
1675 int32_t q;
1676
1677 r = sd_bus_message_read(message, "i", &q);
1678 if (r < 0)
1679 return r;
1680
1681 if (!ioprio_class_is_valid(q))
1682 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid IO scheduling class: %i", q);
1683
1684 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1685 _cleanup_free_ char *s = NULL;
1686
1687 r = ioprio_class_to_string_alloc(q, &s);
1688 if (r < 0)
1689 return r;
1690
1691 c->ioprio = IOPRIO_PRIO_VALUE(q, IOPRIO_PRIO_DATA(c->ioprio));
1692 c->ioprio_set = true;
1693
1694 unit_write_settingf(u, flags, name, "IOSchedulingClass=%s", s);
1695 }
1696
1697 return 1;
1698
1699 } else if (streq(name, "IOSchedulingPriority")) {
1700 int32_t p;
1701
1702 r = sd_bus_message_read(message, "i", &p);
1703 if (r < 0)
1704 return r;
1705
1706 if (!ioprio_priority_is_valid(p))
1707 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid IO scheduling priority: %i", p);
1708
1709 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1710 c->ioprio = IOPRIO_PRIO_VALUE(IOPRIO_PRIO_CLASS(c->ioprio), p);
1711 c->ioprio_set = true;
1712
1713 unit_write_settingf(u, flags, name, "IOSchedulingPriority=%i", p);
1714 }
1715
1716 return 1;
1717
1718 } else if (streq(name, "WorkingDirectory")) {
1719 const char *s;
1720 bool missing_ok;
1721
1722 r = sd_bus_message_read(message, "s", &s);
1723 if (r < 0)
1724 return r;
1725
1726 if (s[0] == '-') {
1727 missing_ok = true;
1728 s++;
1729 } else
1730 missing_ok = false;
1731
1732 if (!isempty(s) && !streq(s, "~") && !path_is_absolute(s))
1733 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "WorkingDirectory= expects an absolute path or '~'");
1734
1735 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1736 if (streq(s, "~")) {
1737 c->working_directory = mfree(c->working_directory);
1738 c->working_directory_home = true;
1739 } else {
1740 r = free_and_strdup(&c->working_directory, empty_to_null(s));
1741 if (r < 0)
1742 return r;
1743
1744 c->working_directory_home = false;
1745 }
1746
1747 c->working_directory_missing_ok = missing_ok;
1748 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "WorkingDirectory=%s%s", missing_ok ? "-" : "", s);
1749 }
1750
1751 return 1;
1752
1753 } else if (STR_IN_SET(name,
1754 "StandardInputFileDescriptorName", "StandardOutputFileDescriptorName", "StandardErrorFileDescriptorName")) {
1755 const char *s;
1756
1757 r = sd_bus_message_read(message, "s", &s);
1758 if (r < 0)
1759 return r;
1760
1761 if (!isempty(s) && !fdname_is_valid(s))
1762 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid file descriptor name");
1763
1764 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1765
1766 if (streq(name, "StandardInputFileDescriptorName")) {
1767 r = free_and_strdup(c->stdio_fdname + STDIN_FILENO, empty_to_null(s));
1768 if (r < 0)
1769 return r;
1770
1771 c->std_input = EXEC_INPUT_NAMED_FD;
1772 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "StandardInput=fd:%s", exec_context_fdname(c, STDIN_FILENO));
1773
1774 } else if (streq(name, "StandardOutputFileDescriptorName")) {
1775 r = free_and_strdup(c->stdio_fdname + STDOUT_FILENO, empty_to_null(s));
1776 if (r < 0)
1777 return r;
1778
1779 c->std_output = EXEC_OUTPUT_NAMED_FD;
1780 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "StandardOutput=fd:%s", exec_context_fdname(c, STDOUT_FILENO));
1781
1782 } else {
1783 assert(streq(name, "StandardErrorFileDescriptorName"));
1784
1785 r = free_and_strdup(&c->stdio_fdname[STDERR_FILENO], empty_to_null(s));
1786 if (r < 0)
1787 return r;
1788
1789 c->std_error = EXEC_OUTPUT_NAMED_FD;
1790 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "StandardError=fd:%s", exec_context_fdname(c, STDERR_FILENO));
1791 }
1792 }
1793
1794 return 1;
1795
1796 } else if (STR_IN_SET(name,
1797 "StandardInputFile",
1798 "StandardOutputFile", "StandardOutputFileToAppend",
1799 "StandardErrorFile", "StandardErrorFileToAppend")) {
1800 const char *s;
1801
1802 r = sd_bus_message_read(message, "s", &s);
1803 if (r < 0)
1804 return r;
1805
1806 if (!isempty(s)) {
1807 if (!path_is_absolute(s))
1808 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not absolute", s);
1809 if (!path_is_normalized(s))
1810 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not normalized", s);
1811 }
1812
1813 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1814
1815 if (streq(name, "StandardInputFile")) {
1816 r = free_and_strdup(&c->stdio_file[STDIN_FILENO], empty_to_null(s));
1817 if (r < 0)
1818 return r;
1819
1820 c->std_input = EXEC_INPUT_FILE;
1821 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "StandardInput=file:%s", s);
1822
1823 } else if (STR_IN_SET(name, "StandardOutputFile", "StandardOutputFileToAppend")) {
1824 r = free_and_strdup(&c->stdio_file[STDOUT_FILENO], empty_to_null(s));
1825 if (r < 0)
1826 return r;
1827
1828 if (streq(name, "StandardOutputFile")) {
1829 c->std_output = EXEC_OUTPUT_FILE;
1830 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "StandardOutput=file:%s", s);
1831 } else {
1832 assert(streq(name, "StandardOutputFileToAppend"));
1833 c->std_output = EXEC_OUTPUT_FILE_APPEND;
1834 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "StandardOutput=append:%s", s);
1835 }
1836 } else {
1837 assert(STR_IN_SET(name, "StandardErrorFile", "StandardErrorFileToAppend"));
1838
1839 r = free_and_strdup(&c->stdio_file[STDERR_FILENO], empty_to_null(s));
1840 if (r < 0)
1841 return r;
1842
1843 if (streq(name, "StandardErrorFile")) {
1844 c->std_error = EXEC_OUTPUT_FILE;
1845 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "StandardError=file:%s", s);
1846 } else {
1847 assert(streq(name, "StandardErrorFileToAppend"));
1848 c->std_error = EXEC_OUTPUT_FILE_APPEND;
1849 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "StandardError=append:%s", s);
1850 }
1851 }
1852 }
1853
1854 return 1;
1855
1856 } else if (streq(name, "StandardInputData")) {
1857 const void *p;
1858 size_t sz;
1859
1860 r = sd_bus_message_read_array(message, 'y', &p, &sz);
1861 if (r < 0)
1862 return r;
1863
1864 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1865 _cleanup_free_ char *encoded = NULL;
1866
1867 if (sz == 0) {
1868 c->stdin_data = mfree(c->stdin_data);
1869 c->stdin_data_size = 0;
1870
1871 unit_write_settingf(u, flags, name, "StandardInputData=");
1872 } else {
1873 void *q;
1874 ssize_t n;
1875
1876 if (c->stdin_data_size + sz < c->stdin_data_size || /* check for overflow */
1877 c->stdin_data_size + sz > EXEC_STDIN_DATA_MAX)
1878 return -E2BIG;
1879
1880 n = base64mem(p, sz, &encoded);
1881 if (n < 0)
1882 return (int) n;
1883
1884 q = realloc(c->stdin_data, c->stdin_data_size + sz);
1885 if (!q)
1886 return -ENOMEM;
1887
1888 memcpy((uint8_t*) q + c->stdin_data_size, p, sz);
1889
1890 c->stdin_data = q;
1891 c->stdin_data_size += sz;
1892
1893 unit_write_settingf(u, flags, name, "StandardInputData=%s", encoded);
1894 }
1895 }
1896
1897 return 1;
1898
1899 } else if (streq(name, "Environment")) {
1900
1901 _cleanup_strv_free_ char **l = NULL;
1902
1903 r = sd_bus_message_read_strv(message, &l);
1904 if (r < 0)
1905 return r;
1906
1907 if (!strv_env_is_valid(l))
1908 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid environment block.");
1909
1910 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1911 if (strv_isempty(l)) {
1912 c->environment = strv_free(c->environment);
1913 unit_write_setting(u, flags, name, "Environment=");
1914 } else {
1915 _cleanup_free_ char *joined = NULL;
1916 char **e;
1917
1918 joined = unit_concat_strv(l, UNIT_ESCAPE_SPECIFIERS|UNIT_ESCAPE_C);
1919 if (!joined)
1920 return -ENOMEM;
1921
1922 e = strv_env_merge(2, c->environment, l);
1923 if (!e)
1924 return -ENOMEM;
1925
1926 strv_free_and_replace(c->environment, e);
1927 unit_write_settingf(u, flags, name, "Environment=%s", joined);
1928 }
1929 }
1930
1931 return 1;
1932
1933 } else if (streq(name, "UnsetEnvironment")) {
1934
1935 _cleanup_strv_free_ char **l = NULL;
1936
1937 r = sd_bus_message_read_strv(message, &l);
1938 if (r < 0)
1939 return r;
1940
1941 if (!strv_env_name_or_assignment_is_valid(l))
1942 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid UnsetEnvironment= list.");
1943
1944 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1945 if (strv_isempty(l)) {
1946 c->unset_environment = strv_free(c->unset_environment);
1947 unit_write_setting(u, flags, name, "UnsetEnvironment=");
1948 } else {
1949 _cleanup_free_ char *joined = NULL;
1950 char **e;
1951
1952 joined = unit_concat_strv(l, UNIT_ESCAPE_SPECIFIERS|UNIT_ESCAPE_C);
1953 if (!joined)
1954 return -ENOMEM;
1955
1956 e = strv_env_merge(2, c->unset_environment, l);
1957 if (!e)
1958 return -ENOMEM;
1959
1960 strv_free_and_replace(c->unset_environment, e);
1961 unit_write_settingf(u, flags, name, "UnsetEnvironment=%s", joined);
1962 }
1963 }
1964
1965 return 1;
1966
1967 } else if (streq(name, "OOMScoreAdjust")) {
1968 int oa;
1969
1970 r = sd_bus_message_read(message, "i", &oa);
1971 if (r < 0)
1972 return r;
1973
1974 if (!oom_score_adjust_is_valid(oa))
1975 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "OOM score adjust value out of range");
1976
1977 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1978 c->oom_score_adjust = oa;
1979 c->oom_score_adjust_set = true;
1980 unit_write_settingf(u, flags, name, "OOMScoreAdjust=%i", oa);
1981 }
1982
1983 return 1;
1984
1985 } else if (streq(name, "EnvironmentFiles")) {
1986
1987 _cleanup_free_ char *joined = NULL;
1988 _cleanup_fclose_ FILE *f = NULL;
1989 _cleanup_strv_free_ char **l = NULL;
1990 size_t size = 0;
1991 char **i;
1992
1993 r = sd_bus_message_enter_container(message, 'a', "(sb)");
1994 if (r < 0)
1995 return r;
1996
1997 f = open_memstream(&joined, &size);
1998 if (!f)
1999 return -ENOMEM;
2000
2001 (void) __fsetlocking(f, FSETLOCKING_BYCALLER);
2002
2003 fputs("EnvironmentFile=\n", f);
2004
2005 STRV_FOREACH(i, c->environment_files) {
2006 _cleanup_free_ char *q = NULL;
2007
2008 q = specifier_escape(*i);
2009 if (!q)
2010 return -ENOMEM;
2011
2012 fprintf(f, "EnvironmentFile=%s\n", q);
2013 }
2014
2015 while ((r = sd_bus_message_enter_container(message, 'r', "sb")) > 0) {
2016 const char *path;
2017 int b;
2018
2019 r = sd_bus_message_read(message, "sb", &path, &b);
2020 if (r < 0)
2021 return r;
2022
2023 r = sd_bus_message_exit_container(message);
2024 if (r < 0)
2025 return r;
2026
2027 if (!path_is_absolute(path))
2028 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not absolute.", path);
2029
2030 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
2031 _cleanup_free_ char *q = NULL;
2032 char *buf;
2033
2034 buf = strjoin(b ? "-" : "", path);
2035 if (!buf)
2036 return -ENOMEM;
2037
2038 q = specifier_escape(buf);
2039 if (!q) {
2040 free(buf);
2041 return -ENOMEM;
2042 }
2043
2044 fprintf(f, "EnvironmentFile=%s\n", q);
2045
2046 r = strv_consume(&l, buf);
2047 if (r < 0)
2048 return r;
2049 }
2050 }
2051 if (r < 0)
2052 return r;
2053
2054 r = sd_bus_message_exit_container(message);
2055 if (r < 0)
2056 return r;
2057
2058 r = fflush_and_check(f);
2059 if (r < 0)
2060 return r;
2061
2062 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
2063 if (strv_isempty(l)) {
2064 c->environment_files = strv_free(c->environment_files);
2065 unit_write_setting(u, flags, name, "EnvironmentFile=");
2066 } else {
2067 r = strv_extend_strv(&c->environment_files, l, true);
2068 if (r < 0)
2069 return r;
2070
2071 unit_write_setting(u, flags, name, joined);
2072 }
2073 }
2074
2075 return 1;
2076
2077 } else if (streq(name, "PassEnvironment")) {
2078
2079 _cleanup_strv_free_ char **l = NULL;
2080
2081 r = sd_bus_message_read_strv(message, &l);
2082 if (r < 0)
2083 return r;
2084
2085 if (!strv_env_name_is_valid(l))
2086 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid PassEnvironment= block.");
2087
2088 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
2089 if (strv_isempty(l)) {
2090 c->pass_environment = strv_free(c->pass_environment);
2091 unit_write_setting(u, flags, name, "PassEnvironment=");
2092 } else {
2093 _cleanup_free_ char *joined = NULL;
2094
2095 r = strv_extend_strv(&c->pass_environment, l, true);
2096 if (r < 0)
2097 return r;
2098
2099 /* We write just the new settings out to file, with unresolved specifiers. */
2100 joined = unit_concat_strv(l, UNIT_ESCAPE_SPECIFIERS);
2101 if (!joined)
2102 return -ENOMEM;
2103
2104 unit_write_settingf(u, flags, name, "PassEnvironment=%s", joined);
2105 }
2106 }
2107
2108 return 1;
2109
2110 } else if (STR_IN_SET(name, "ReadWriteDirectories", "ReadOnlyDirectories", "InaccessibleDirectories",
2111 "ReadWritePaths", "ReadOnlyPaths", "InaccessiblePaths")) {
2112 _cleanup_strv_free_ char **l = NULL;
2113 char ***dirs;
2114 char **p;
2115
2116 r = sd_bus_message_read_strv(message, &l);
2117 if (r < 0)
2118 return r;
2119
2120 STRV_FOREACH(p, l) {
2121 char *i = *p;
2122 size_t offset;
2123
2124 offset = i[0] == '-';
2125 offset += i[offset] == '+';
2126 if (!path_is_absolute(i + offset))
2127 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid %s", name);
2128
2129 path_simplify(i + offset, false);
2130 }
2131
2132 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
2133 if (STR_IN_SET(name, "ReadWriteDirectories", "ReadWritePaths"))
2134 dirs = &c->read_write_paths;
2135 else if (STR_IN_SET(name, "ReadOnlyDirectories", "ReadOnlyPaths"))
2136 dirs = &c->read_only_paths;
2137 else /* "InaccessiblePaths" */
2138 dirs = &c->inaccessible_paths;
2139
2140 if (strv_isempty(l)) {
2141 *dirs = strv_free(*dirs);
2142 unit_write_settingf(u, flags, name, "%s=", name);
2143 } else {
2144 _cleanup_free_ char *joined = NULL;
2145
2146 joined = unit_concat_strv(l, UNIT_ESCAPE_SPECIFIERS);
2147 if (!joined)
2148 return -ENOMEM;
2149
2150 r = strv_extend_strv(dirs, l, true);
2151 if (r < 0)
2152 return -ENOMEM;
2153
2154 unit_write_settingf(u, flags, name, "%s=%s", name, joined);
2155 }
2156 }
2157
2158 return 1;
2159
2160 } else if (STR_IN_SET(name, "RuntimeDirectory", "StateDirectory", "CacheDirectory", "LogsDirectory", "ConfigurationDirectory")) {
2161 _cleanup_strv_free_ char **l = NULL;
2162 char **p;
2163
2164 r = sd_bus_message_read_strv(message, &l);
2165 if (r < 0)
2166 return r;
2167
2168 STRV_FOREACH(p, l) {
2169 if (!path_is_normalized(*p))
2170 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "%s= path is not normalized: %s", name, *p);
2171
2172 if (path_is_absolute(*p))
2173 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "%s= path is absolute: %s", name, *p);
2174
2175 if (path_startswith(*p, "private"))
2176 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "%s= path can't be 'private': %s", name, *p);
2177 }
2178
2179 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
2180 char ***dirs = NULL;
2181 ExecDirectoryType i;
2182
2183 for (i = 0; i < _EXEC_DIRECTORY_TYPE_MAX; i++)
2184 if (streq(name, exec_directory_type_to_string(i))) {
2185 dirs = &c->directories[i].paths;
2186 break;
2187 }
2188
2189 assert(dirs);
2190
2191 if (strv_isempty(l)) {
2192 *dirs = strv_free(*dirs);
2193 unit_write_settingf(u, flags, name, "%s=", name);
2194 } else {
2195 _cleanup_free_ char *joined = NULL;
2196
2197 r = strv_extend_strv(dirs, l, true);
2198 if (r < 0)
2199 return -ENOMEM;
2200
2201 joined = unit_concat_strv(l, UNIT_ESCAPE_SPECIFIERS);
2202 if (!joined)
2203 return -ENOMEM;
2204
2205 unit_write_settingf(u, flags, name, "%s=%s", name, joined);
2206 }
2207 }
2208
2209 return 1;
2210
2211 } else if (STR_IN_SET(name, "AppArmorProfile", "SmackProcessLabel")) {
2212 int ignore;
2213 const char *s;
2214
2215 r = sd_bus_message_read(message, "(bs)", &ignore, &s);
2216 if (r < 0)
2217 return r;
2218
2219 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
2220 char **p;
2221 bool *b;
2222
2223 if (streq(name, "AppArmorProfile")) {
2224 p = &c->apparmor_profile;
2225 b = &c->apparmor_profile_ignore;
2226 } else { /* "SmackProcessLabel" */
2227 p = &c->smack_process_label;
2228 b = &c->smack_process_label_ignore;
2229 }
2230
2231 if (isempty(s)) {
2232 *p = mfree(*p);
2233 *b = false;
2234 } else {
2235 if (free_and_strdup(p, s) < 0)
2236 return -ENOMEM;
2237 *b = ignore;
2238 }
2239
2240 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "%s=%s%s", name, ignore ? "-" : "", strempty(s));
2241 }
2242
2243 return 1;
2244
2245 } else if (STR_IN_SET(name, "BindPaths", "BindReadOnlyPaths")) {
2246 const char *source, *destination;
2247 int ignore_enoent;
2248 uint64_t mount_flags;
2249 bool empty = true;
2250
2251 r = sd_bus_message_enter_container(message, 'a', "(ssbt)");
2252 if (r < 0)
2253 return r;
2254
2255 while ((r = sd_bus_message_read(message, "(ssbt)", &source, &destination, &ignore_enoent, &mount_flags)) > 0) {
2256
2257 if (!path_is_absolute(source))
2258 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Source path %s is not absolute.", source);
2259 if (!path_is_absolute(destination))
2260 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Destination path %s is not absolute.", destination);
2261 if (!IN_SET(mount_flags, 0, MS_REC))
2262 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unknown mount flags.");
2263
2264 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
2265 r = bind_mount_add(&c->bind_mounts, &c->n_bind_mounts,
2266 &(BindMount) {
2267 .source = strdup(source),
2268 .destination = strdup(destination),
2269 .read_only = !!strstr(name, "ReadOnly"),
2270 .recursive = !!(mount_flags & MS_REC),
2271 .ignore_enoent = ignore_enoent,
2272 });
2273 if (r < 0)
2274 return r;
2275
2276 unit_write_settingf(
2277 u, flags|UNIT_ESCAPE_SPECIFIERS, name,
2278 "%s=%s%s:%s:%s",
2279 name,
2280 ignore_enoent ? "-" : "",
2281 source,
2282 destination,
2283 (mount_flags & MS_REC) ? "rbind" : "norbind");
2284 }
2285
2286 empty = false;
2287 }
2288 if (r < 0)
2289 return r;
2290
2291 r = sd_bus_message_exit_container(message);
2292 if (r < 0)
2293 return r;
2294
2295 if (empty) {
2296 bind_mount_free_many(c->bind_mounts, c->n_bind_mounts);
2297 c->bind_mounts = NULL;
2298 c->n_bind_mounts = 0;
2299
2300 unit_write_settingf(u, flags, name, "%s=", name);
2301 }
2302
2303 return 1;
2304
2305 } else if (streq(name, "TemporaryFileSystem")) {
2306 const char *path, *options;
2307 bool empty = true;
2308
2309 r = sd_bus_message_enter_container(message, 'a', "(ss)");
2310 if (r < 0)
2311 return r;
2312
2313 while ((r = sd_bus_message_read(message, "(ss)", &path, &options)) > 0) {
2314
2315 if (!path_is_absolute(path))
2316 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Mount point %s is not absolute.", path);
2317
2318 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
2319 r = temporary_filesystem_add(&c->temporary_filesystems, &c->n_temporary_filesystems, path, options);
2320 if (r < 0)
2321 return r;
2322
2323 unit_write_settingf(
2324 u, flags|UNIT_ESCAPE_SPECIFIERS, name,
2325 "%s=%s:%s",
2326 name,
2327 path,
2328 options);
2329 }
2330
2331 empty = false;
2332 }
2333 if (r < 0)
2334 return r;
2335
2336 r = sd_bus_message_exit_container(message);
2337 if (r < 0)
2338 return r;
2339
2340 if (empty) {
2341 temporary_filesystem_free_many(c->temporary_filesystems, c->n_temporary_filesystems);
2342 c->temporary_filesystems = NULL;
2343 c->n_temporary_filesystems = 0;
2344
2345 unit_write_settingf(u, flags, name, "%s=", name);
2346 }
2347
2348 return 1;
2349
2350 } else if ((suffix = startswith(name, "Limit"))) {
2351 const char *soft = NULL;
2352 int ri;
2353
2354 ri = rlimit_from_string(suffix);
2355 if (ri < 0) {
2356 soft = endswith(suffix, "Soft");
2357 if (soft) {
2358 const char *n;
2359
2360 n = strndupa(suffix, soft - suffix);
2361 ri = rlimit_from_string(n);
2362 if (ri >= 0)
2363 name = strjoina("Limit", n);
2364 }
2365 }
2366
2367 if (ri >= 0) {
2368 uint64_t rl;
2369 rlim_t x;
2370
2371 r = sd_bus_message_read(message, "t", &rl);
2372 if (r < 0)
2373 return r;
2374
2375 if (rl == (uint64_t) -1)
2376 x = RLIM_INFINITY;
2377 else {
2378 x = (rlim_t) rl;
2379
2380 if ((uint64_t) x != rl)
2381 return -ERANGE;
2382 }
2383
2384 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
2385 _cleanup_free_ char *f = NULL;
2386 struct rlimit nl;
2387
2388 if (c->rlimit[ri]) {
2389 nl = *c->rlimit[ri];
2390
2391 if (soft)
2392 nl.rlim_cur = x;
2393 else
2394 nl.rlim_max = x;
2395 } else
2396 /* When the resource limit is not initialized yet, then assign the value to both fields */
2397 nl = (struct rlimit) {
2398 .rlim_cur = x,
2399 .rlim_max = x,
2400 };
2401
2402 r = rlimit_format(&nl, &f);
2403 if (r < 0)
2404 return r;
2405
2406 if (c->rlimit[ri])
2407 *c->rlimit[ri] = nl;
2408 else {
2409 c->rlimit[ri] = newdup(struct rlimit, &nl, 1);
2410 if (!c->rlimit[ri])
2411 return -ENOMEM;
2412 }
2413
2414 unit_write_settingf(u, flags, name, "%s=%s", name, f);
2415 }
2416
2417 return 1;
2418 }
2419
2420 }
2421
2422 return 0;
2423 }
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