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[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 "mount-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("LogExtraFields", "aay", property_get_log_extra_fields, 0, SD_BUS_VTABLE_PROPERTY_CONST),
722 SD_BUS_PROPERTY("SecureBits", "i", bus_property_get_int, offsetof(ExecContext, secure_bits), SD_BUS_VTABLE_PROPERTY_CONST),
723 SD_BUS_PROPERTY("CapabilityBoundingSet", "t", NULL, offsetof(ExecContext, capability_bounding_set), SD_BUS_VTABLE_PROPERTY_CONST),
724 SD_BUS_PROPERTY("AmbientCapabilities", "t", NULL, offsetof(ExecContext, capability_ambient_set), SD_BUS_VTABLE_PROPERTY_CONST),
725 SD_BUS_PROPERTY("User", "s", NULL, offsetof(ExecContext, user), SD_BUS_VTABLE_PROPERTY_CONST),
726 SD_BUS_PROPERTY("Group", "s", NULL, offsetof(ExecContext, group), SD_BUS_VTABLE_PROPERTY_CONST),
727 SD_BUS_PROPERTY("DynamicUser", "b", bus_property_get_bool, offsetof(ExecContext, dynamic_user), SD_BUS_VTABLE_PROPERTY_CONST),
728 SD_BUS_PROPERTY("RemoveIPC", "b", bus_property_get_bool, offsetof(ExecContext, remove_ipc), SD_BUS_VTABLE_PROPERTY_CONST),
729 SD_BUS_PROPERTY("SupplementaryGroups", "as", NULL, offsetof(ExecContext, supplementary_groups), SD_BUS_VTABLE_PROPERTY_CONST),
730 SD_BUS_PROPERTY("PAMName", "s", NULL, offsetof(ExecContext, pam_name), SD_BUS_VTABLE_PROPERTY_CONST),
731 SD_BUS_PROPERTY("ReadWritePaths", "as", NULL, offsetof(ExecContext, read_write_paths), SD_BUS_VTABLE_PROPERTY_CONST),
732 SD_BUS_PROPERTY("ReadOnlyPaths", "as", NULL, offsetof(ExecContext, read_only_paths), SD_BUS_VTABLE_PROPERTY_CONST),
733 SD_BUS_PROPERTY("InaccessiblePaths", "as", NULL, offsetof(ExecContext, inaccessible_paths), SD_BUS_VTABLE_PROPERTY_CONST),
734 SD_BUS_PROPERTY("MountFlags", "t", bus_property_get_ulong, offsetof(ExecContext, mount_flags), SD_BUS_VTABLE_PROPERTY_CONST),
735 SD_BUS_PROPERTY("PrivateTmp", "b", bus_property_get_bool, offsetof(ExecContext, private_tmp), SD_BUS_VTABLE_PROPERTY_CONST),
736 SD_BUS_PROPERTY("PrivateDevices", "b", bus_property_get_bool, offsetof(ExecContext, private_devices), SD_BUS_VTABLE_PROPERTY_CONST),
737 SD_BUS_PROPERTY("ProtectKernelTunables", "b", bus_property_get_bool, offsetof(ExecContext, protect_kernel_tunables), SD_BUS_VTABLE_PROPERTY_CONST),
738 SD_BUS_PROPERTY("ProtectKernelModules", "b", bus_property_get_bool, offsetof(ExecContext, protect_kernel_modules), SD_BUS_VTABLE_PROPERTY_CONST),
739 SD_BUS_PROPERTY("ProtectControlGroups", "b", bus_property_get_bool, offsetof(ExecContext, protect_control_groups), SD_BUS_VTABLE_PROPERTY_CONST),
740 SD_BUS_PROPERTY("PrivateNetwork", "b", bus_property_get_bool, offsetof(ExecContext, private_network), SD_BUS_VTABLE_PROPERTY_CONST),
741 SD_BUS_PROPERTY("PrivateUsers", "b", bus_property_get_bool, offsetof(ExecContext, private_users), SD_BUS_VTABLE_PROPERTY_CONST),
742 SD_BUS_PROPERTY("PrivateMounts", "b", bus_property_get_bool, offsetof(ExecContext, private_mounts), SD_BUS_VTABLE_PROPERTY_CONST),
743 SD_BUS_PROPERTY("ProtectHome", "s", property_get_protect_home, offsetof(ExecContext, protect_home), SD_BUS_VTABLE_PROPERTY_CONST),
744 SD_BUS_PROPERTY("ProtectSystem", "s", property_get_protect_system, offsetof(ExecContext, protect_system), SD_BUS_VTABLE_PROPERTY_CONST),
745 SD_BUS_PROPERTY("SameProcessGroup", "b", bus_property_get_bool, offsetof(ExecContext, same_pgrp), SD_BUS_VTABLE_PROPERTY_CONST),
746 SD_BUS_PROPERTY("UtmpIdentifier", "s", NULL, offsetof(ExecContext, utmp_id), SD_BUS_VTABLE_PROPERTY_CONST),
747 SD_BUS_PROPERTY("UtmpMode", "s", property_get_exec_utmp_mode, offsetof(ExecContext, utmp_mode), SD_BUS_VTABLE_PROPERTY_CONST),
748 SD_BUS_PROPERTY("SELinuxContext", "(bs)", property_get_selinux_context, 0, SD_BUS_VTABLE_PROPERTY_CONST),
749 SD_BUS_PROPERTY("AppArmorProfile", "(bs)", property_get_apparmor_profile, 0, SD_BUS_VTABLE_PROPERTY_CONST),
750 SD_BUS_PROPERTY("SmackProcessLabel", "(bs)", property_get_smack_process_label, 0, SD_BUS_VTABLE_PROPERTY_CONST),
751 SD_BUS_PROPERTY("IgnoreSIGPIPE", "b", bus_property_get_bool, offsetof(ExecContext, ignore_sigpipe), SD_BUS_VTABLE_PROPERTY_CONST),
752 SD_BUS_PROPERTY("NoNewPrivileges", "b", bus_property_get_bool, offsetof(ExecContext, no_new_privileges), SD_BUS_VTABLE_PROPERTY_CONST),
753 SD_BUS_PROPERTY("SystemCallFilter", "(bas)", property_get_syscall_filter, 0, SD_BUS_VTABLE_PROPERTY_CONST),
754 SD_BUS_PROPERTY("SystemCallArchitectures", "as", property_get_syscall_archs, 0, SD_BUS_VTABLE_PROPERTY_CONST),
755 SD_BUS_PROPERTY("SystemCallErrorNumber", "i", bus_property_get_int, offsetof(ExecContext, syscall_errno), SD_BUS_VTABLE_PROPERTY_CONST),
756 SD_BUS_PROPERTY("Personality", "s", property_get_personality, offsetof(ExecContext, personality), SD_BUS_VTABLE_PROPERTY_CONST),
757 SD_BUS_PROPERTY("LockPersonality", "b", bus_property_get_bool, offsetof(ExecContext, lock_personality), SD_BUS_VTABLE_PROPERTY_CONST),
758 SD_BUS_PROPERTY("RestrictAddressFamilies", "(bas)", property_get_address_families, 0, SD_BUS_VTABLE_PROPERTY_CONST),
759 SD_BUS_PROPERTY("RuntimeDirectoryPreserve", "s", property_get_exec_preserve_mode, offsetof(ExecContext, runtime_directory_preserve_mode), SD_BUS_VTABLE_PROPERTY_CONST),
760 SD_BUS_PROPERTY("RuntimeDirectoryMode", "u", bus_property_get_mode, offsetof(ExecContext, directories[EXEC_DIRECTORY_RUNTIME].mode), SD_BUS_VTABLE_PROPERTY_CONST),
761 SD_BUS_PROPERTY("RuntimeDirectory", "as", NULL, offsetof(ExecContext, directories[EXEC_DIRECTORY_RUNTIME].paths), SD_BUS_VTABLE_PROPERTY_CONST),
762 SD_BUS_PROPERTY("StateDirectoryMode", "u", bus_property_get_mode, offsetof(ExecContext, directories[EXEC_DIRECTORY_STATE].mode), SD_BUS_VTABLE_PROPERTY_CONST),
763 SD_BUS_PROPERTY("StateDirectory", "as", NULL, offsetof(ExecContext, directories[EXEC_DIRECTORY_STATE].paths), SD_BUS_VTABLE_PROPERTY_CONST),
764 SD_BUS_PROPERTY("CacheDirectoryMode", "u", bus_property_get_mode, offsetof(ExecContext, directories[EXEC_DIRECTORY_CACHE].mode), SD_BUS_VTABLE_PROPERTY_CONST),
765 SD_BUS_PROPERTY("CacheDirectory", "as", NULL, offsetof(ExecContext, directories[EXEC_DIRECTORY_CACHE].paths), SD_BUS_VTABLE_PROPERTY_CONST),
766 SD_BUS_PROPERTY("LogsDirectoryMode", "u", bus_property_get_mode, offsetof(ExecContext, directories[EXEC_DIRECTORY_LOGS].mode), SD_BUS_VTABLE_PROPERTY_CONST),
767 SD_BUS_PROPERTY("LogsDirectory", "as", NULL, offsetof(ExecContext, directories[EXEC_DIRECTORY_LOGS].paths), SD_BUS_VTABLE_PROPERTY_CONST),
768 SD_BUS_PROPERTY("ConfigurationDirectoryMode", "u", bus_property_get_mode, offsetof(ExecContext, directories[EXEC_DIRECTORY_CONFIGURATION].mode), SD_BUS_VTABLE_PROPERTY_CONST),
769 SD_BUS_PROPERTY("ConfigurationDirectory", "as", NULL, offsetof(ExecContext, directories[EXEC_DIRECTORY_CONFIGURATION].paths), SD_BUS_VTABLE_PROPERTY_CONST),
770 SD_BUS_PROPERTY("MemoryDenyWriteExecute", "b", bus_property_get_bool, offsetof(ExecContext, memory_deny_write_execute), SD_BUS_VTABLE_PROPERTY_CONST),
771 SD_BUS_PROPERTY("RestrictRealtime", "b", bus_property_get_bool, offsetof(ExecContext, restrict_realtime), SD_BUS_VTABLE_PROPERTY_CONST),
772 SD_BUS_PROPERTY("RestrictNamespaces", "t", bus_property_get_ulong, offsetof(ExecContext, restrict_namespaces), SD_BUS_VTABLE_PROPERTY_CONST),
773 SD_BUS_PROPERTY("BindPaths", "a(ssbt)", property_get_bind_paths, 0, SD_BUS_VTABLE_PROPERTY_CONST),
774 SD_BUS_PROPERTY("BindReadOnlyPaths", "a(ssbt)", property_get_bind_paths, 0, SD_BUS_VTABLE_PROPERTY_CONST),
775 SD_BUS_PROPERTY("TemporaryFileSystem", "a(ss)", property_get_temporary_filesystems, 0, SD_BUS_VTABLE_PROPERTY_CONST),
776 SD_BUS_PROPERTY("MountAPIVFS", "b", bus_property_get_bool, offsetof(ExecContext, mount_apivfs), SD_BUS_VTABLE_PROPERTY_CONST),
777 SD_BUS_PROPERTY("KeyringMode", "s", property_get_exec_keyring_mode, offsetof(ExecContext, keyring_mode), SD_BUS_VTABLE_PROPERTY_CONST),
778
779 /* Obsolete/redundant properties: */
780 SD_BUS_PROPERTY("Capabilities", "s", property_get_empty_string, 0, SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
781 SD_BUS_PROPERTY("ReadWriteDirectories", "as", NULL, offsetof(ExecContext, read_write_paths), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
782 SD_BUS_PROPERTY("ReadOnlyDirectories", "as", NULL, offsetof(ExecContext, read_only_paths), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
783 SD_BUS_PROPERTY("InaccessibleDirectories", "as", NULL, offsetof(ExecContext, inaccessible_paths), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
784 SD_BUS_PROPERTY("IOScheduling", "i", property_get_ioprio, 0, SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
785
786 SD_BUS_VTABLE_END
787 };
788
789 static int append_exec_command(sd_bus_message *reply, ExecCommand *c) {
790 int r;
791
792 assert(reply);
793 assert(c);
794
795 if (!c->path)
796 return 0;
797
798 r = sd_bus_message_open_container(reply, 'r', "sasbttttuii");
799 if (r < 0)
800 return r;
801
802 r = sd_bus_message_append(reply, "s", c->path);
803 if (r < 0)
804 return r;
805
806 r = sd_bus_message_append_strv(reply, c->argv);
807 if (r < 0)
808 return r;
809
810 r = sd_bus_message_append(reply, "bttttuii",
811 !!(c->flags & EXEC_COMMAND_IGNORE_FAILURE),
812 c->exec_status.start_timestamp.realtime,
813 c->exec_status.start_timestamp.monotonic,
814 c->exec_status.exit_timestamp.realtime,
815 c->exec_status.exit_timestamp.monotonic,
816 (uint32_t) c->exec_status.pid,
817 (int32_t) c->exec_status.code,
818 (int32_t) c->exec_status.status);
819 if (r < 0)
820 return r;
821
822 return sd_bus_message_close_container(reply);
823 }
824
825 int bus_property_get_exec_command(
826 sd_bus *bus,
827 const char *path,
828 const char *interface,
829 const char *property,
830 sd_bus_message *reply,
831 void *userdata,
832 sd_bus_error *ret_error) {
833
834 ExecCommand *c = (ExecCommand*) userdata;
835 int r;
836
837 assert(bus);
838 assert(reply);
839
840 r = sd_bus_message_open_container(reply, 'a', "(sasbttttuii)");
841 if (r < 0)
842 return r;
843
844 r = append_exec_command(reply, c);
845 if (r < 0)
846 return r;
847
848 return sd_bus_message_close_container(reply);
849 }
850
851 int bus_property_get_exec_command_list(
852 sd_bus *bus,
853 const char *path,
854 const char *interface,
855 const char *property,
856 sd_bus_message *reply,
857 void *userdata,
858 sd_bus_error *ret_error) {
859
860 ExecCommand *c = *(ExecCommand**) userdata;
861 int r;
862
863 assert(bus);
864 assert(reply);
865
866 r = sd_bus_message_open_container(reply, 'a', "(sasbttttuii)");
867 if (r < 0)
868 return r;
869
870 LIST_FOREACH(command, c, c) {
871 r = append_exec_command(reply, c);
872 if (r < 0)
873 return r;
874 }
875
876 return sd_bus_message_close_container(reply);
877 }
878
879 int bus_set_transient_exec_command(
880 Unit *u,
881 const char *name,
882 ExecCommand **exec_command,
883 sd_bus_message *message,
884 UnitWriteFlags flags,
885 sd_bus_error *error) {
886 unsigned n = 0;
887 int r;
888
889 r = sd_bus_message_enter_container(message, 'a', "(sasb)");
890 if (r < 0)
891 return r;
892
893 while ((r = sd_bus_message_enter_container(message, 'r', "sasb")) > 0) {
894 _cleanup_strv_free_ char **argv = NULL;
895 const char *path;
896 int b;
897
898 r = sd_bus_message_read(message, "s", &path);
899 if (r < 0)
900 return r;
901
902 if (!path_is_absolute(path))
903 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not absolute.", path);
904
905 r = sd_bus_message_read_strv(message, &argv);
906 if (r < 0)
907 return r;
908
909 r = sd_bus_message_read(message, "b", &b);
910 if (r < 0)
911 return r;
912
913 r = sd_bus_message_exit_container(message);
914 if (r < 0)
915 return r;
916
917 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
918 ExecCommand *c;
919
920 c = new0(ExecCommand, 1);
921 if (!c)
922 return -ENOMEM;
923
924 c->path = strdup(path);
925 if (!c->path) {
926 free(c);
927 return -ENOMEM;
928 }
929
930 c->argv = TAKE_PTR(argv);
931
932 c->flags = b ? EXEC_COMMAND_IGNORE_FAILURE : 0;
933
934 path_simplify(c->path, false);
935 exec_command_append_list(exec_command, c);
936 }
937
938 n++;
939 }
940 if (r < 0)
941 return r;
942
943 r = sd_bus_message_exit_container(message);
944 if (r < 0)
945 return r;
946
947 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
948 _cleanup_free_ char *buf = NULL;
949 _cleanup_fclose_ FILE *f = NULL;
950 ExecCommand *c;
951 size_t size = 0;
952
953 if (n == 0)
954 *exec_command = exec_command_free_list(*exec_command);
955
956 f = open_memstream(&buf, &size);
957 if (!f)
958 return -ENOMEM;
959
960 (void) __fsetlocking(f, FSETLOCKING_BYCALLER);
961
962 fputs("ExecStart=\n", f);
963
964 LIST_FOREACH(command, c, *exec_command) {
965 _cleanup_free_ char *a = NULL, *t = NULL;
966 const char *p;
967
968 p = unit_escape_setting(c->path, UNIT_ESCAPE_C|UNIT_ESCAPE_SPECIFIERS, &t);
969 if (!p)
970 return -ENOMEM;
971
972 a = unit_concat_strv(c->argv, UNIT_ESCAPE_C|UNIT_ESCAPE_SPECIFIERS);
973 if (!a)
974 return -ENOMEM;
975
976 fprintf(f, "%s=%s@%s %s\n",
977 name,
978 c->flags & EXEC_COMMAND_IGNORE_FAILURE ? "-" : "",
979 p,
980 a);
981 }
982
983 r = fflush_and_check(f);
984 if (r < 0)
985 return r;
986
987 unit_write_setting(u, flags, name, buf);
988 }
989
990 return 1;
991 }
992
993 static int parse_personality(const char *s, unsigned long *p) {
994 unsigned long v;
995
996 assert(p);
997
998 v = personality_from_string(s);
999 if (v == PERSONALITY_INVALID)
1000 return -EINVAL;
1001
1002 *p = v;
1003 return 0;
1004 }
1005
1006 static const char* mount_propagation_flags_to_string_with_check(unsigned long n) {
1007 if (!IN_SET(n, 0, MS_SHARED, MS_PRIVATE, MS_SLAVE))
1008 return NULL;
1009
1010 return mount_propagation_flags_to_string(n);
1011 }
1012
1013 static BUS_DEFINE_SET_TRANSIENT(nsec, "t", uint64_t, nsec_t, NSEC_FMT);
1014 static BUS_DEFINE_SET_TRANSIENT_IS_VALID(log_level, "i", int32_t, int, "%" PRIi32, log_level_is_valid);
1015 #if HAVE_SECCOMP
1016 static BUS_DEFINE_SET_TRANSIENT_IS_VALID(errno, "i", int32_t, int, "%" PRIi32, errno_is_valid);
1017 #endif
1018 static BUS_DEFINE_SET_TRANSIENT_IS_VALID(sched_priority, "i", int32_t, int, "%" PRIi32, sched_priority_is_valid);
1019 static BUS_DEFINE_SET_TRANSIENT_IS_VALID(nice, "i", int32_t, int, "%" PRIi32, nice_is_valid);
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_or_bool_from_string);
1024 static BUS_DEFINE_SET_TRANSIENT_PARSE(protect_home, ProtectHome, protect_home_or_bool_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(sched_policy, "i", int32_t, int, "%" PRIi32, sched_policy_to_string_alloc_with_check);
1031 static BUS_DEFINE_SET_TRANSIENT_TO_STRING_ALLOC(namespace_flag, "t", uint64_t, unsigned long, "%" PRIu64, namespace_flags_to_string);
1032 static BUS_DEFINE_SET_TRANSIENT_TO_STRING(mount_flags, "t", uint64_t, unsigned long, "%" PRIu64, mount_propagation_flags_to_string_with_check);
1033
1034 int bus_exec_context_set_transient_property(
1035 Unit *u,
1036 ExecContext *c,
1037 const char *name,
1038 sd_bus_message *message,
1039 UnitWriteFlags flags,
1040 sd_bus_error *error) {
1041
1042 const char *suffix;
1043 int r;
1044
1045 assert(u);
1046 assert(c);
1047 assert(name);
1048 assert(message);
1049
1050 flags |= UNIT_PRIVATE;
1051
1052 if (streq(name, "User"))
1053 return bus_set_transient_user(u, name, &c->user, message, flags, error);
1054
1055 if (streq(name, "Group"))
1056 return bus_set_transient_user(u, name, &c->group, message, flags, error);
1057
1058 if (streq(name, "TTYPath"))
1059 return bus_set_transient_path(u, name, &c->tty_path, message, flags, error);
1060
1061 if (streq(name, "RootImage"))
1062 return bus_set_transient_path(u, name, &c->root_image, message, flags, error);
1063
1064 if (streq(name, "RootDirectory"))
1065 return bus_set_transient_path(u, name, &c->root_directory, message, flags, error);
1066
1067 if (streq(name, "SyslogIdentifier"))
1068 return bus_set_transient_string(u, name, &c->syslog_identifier, message, flags, error);
1069
1070 if (streq(name, "LogLevelMax"))
1071 return bus_set_transient_log_level(u, name, &c->log_level_max, message, flags, error);
1072
1073 if (streq(name, "CPUSchedulingPriority"))
1074 return bus_set_transient_sched_priority(u, name, &c->cpu_sched_priority, message, flags, error);
1075
1076 if (streq(name, "Personality"))
1077 return bus_set_transient_personality(u, name, &c->personality, message, flags, error);
1078
1079 if (streq(name, "Nice"))
1080 return bus_set_transient_nice(u, name, &c->nice, message, flags, error);
1081
1082 if (streq(name, "StandardInput"))
1083 return bus_set_transient_std_input(u, name, &c->std_input, message, flags, error);
1084
1085 if (streq(name, "StandardOutput"))
1086 return bus_set_transient_std_output(u, name, &c->std_output, message, flags, error);
1087
1088 if (streq(name, "StandardError"))
1089 return bus_set_transient_std_output(u, name, &c->std_error, message, flags, error);
1090
1091 if (streq(name, "IgnoreSIGPIPE"))
1092 return bus_set_transient_bool(u, name, &c->ignore_sigpipe, message, flags, error);
1093
1094 if (streq(name, "TTYVHangup"))
1095 return bus_set_transient_bool(u, name, &c->tty_vhangup, message, flags, error);
1096
1097 if (streq(name, "TTYReset"))
1098 return bus_set_transient_bool(u, name, &c->tty_reset, message, flags, error);
1099
1100 if (streq(name, "TTYVTDisallocate"))
1101 return bus_set_transient_bool(u, name, &c->tty_vt_disallocate, message, flags, error);
1102
1103 if (streq(name, "PrivateTmp"))
1104 return bus_set_transient_bool(u, name, &c->private_tmp, message, flags, error);
1105
1106 if (streq(name, "PrivateDevices"))
1107 return bus_set_transient_bool(u, name, &c->private_devices, message, flags, error);
1108
1109 if (streq(name, "PrivateMounts"))
1110 return bus_set_transient_bool(u, name, &c->private_mounts, message, flags, error);
1111
1112 if (streq(name, "PrivateNetwork"))
1113 return bus_set_transient_bool(u, name, &c->private_network, message, flags, error);
1114
1115 if (streq(name, "PrivateUsers"))
1116 return bus_set_transient_bool(u, name, &c->private_users, message, flags, error);
1117
1118 if (streq(name, "NoNewPrivileges"))
1119 return bus_set_transient_bool(u, name, &c->no_new_privileges, message, flags, error);
1120
1121 if (streq(name, "SyslogLevelPrefix"))
1122 return bus_set_transient_bool(u, name, &c->syslog_level_prefix, message, flags, error);
1123
1124 if (streq(name, "MemoryDenyWriteExecute"))
1125 return bus_set_transient_bool(u, name, &c->memory_deny_write_execute, message, flags, error);
1126
1127 if (streq(name, "RestrictRealtime"))
1128 return bus_set_transient_bool(u, name, &c->restrict_realtime, message, flags, error);
1129
1130 if (streq(name, "DynamicUser"))
1131 return bus_set_transient_bool(u, name, &c->dynamic_user, message, flags, error);
1132
1133 if (streq(name, "RemoveIPC"))
1134 return bus_set_transient_bool(u, name, &c->remove_ipc, message, flags, error);
1135
1136 if (streq(name, "ProtectKernelTunables"))
1137 return bus_set_transient_bool(u, name, &c->protect_kernel_tunables, message, flags, error);
1138
1139 if (streq(name, "ProtectKernelModules"))
1140 return bus_set_transient_bool(u, name, &c->protect_kernel_modules, message, flags, error);
1141
1142 if (streq(name, "ProtectControlGroups"))
1143 return bus_set_transient_bool(u, name, &c->protect_control_groups, message, flags, error);
1144
1145 if (streq(name, "MountAPIVFS"))
1146 return bus_set_transient_bool(u, name, &c->mount_apivfs, message, flags, error);
1147
1148 if (streq(name, "CPUSchedulingResetOnFork"))
1149 return bus_set_transient_bool(u, name, &c->cpu_sched_reset_on_fork, message, flags, error);
1150
1151 if (streq(name, "NonBlocking"))
1152 return bus_set_transient_bool(u, name, &c->non_blocking, message, flags, error);
1153
1154 if (streq(name, "LockPersonality"))
1155 return bus_set_transient_bool(u, name, &c->lock_personality, message, flags, error);
1156
1157 if (streq(name, "UtmpIdentifier"))
1158 return bus_set_transient_string(u, name, &c->utmp_id, message, flags, error);
1159
1160 if (streq(name, "UtmpMode"))
1161 return bus_set_transient_utmp_mode(u, name, &c->utmp_mode, message, flags, error);
1162
1163 if (streq(name, "PAMName"))
1164 return bus_set_transient_string(u, name, &c->pam_name, message, flags, error);
1165
1166 if (streq(name, "TimerSlackNSec"))
1167 return bus_set_transient_nsec(u, name, &c->timer_slack_nsec, message, flags, error);
1168
1169 if (streq(name, "ProtectSystem"))
1170 return bus_set_transient_protect_system(u, name, &c->protect_system, message, flags, error);
1171
1172 if (streq(name, "ProtectHome"))
1173 return bus_set_transient_protect_home(u, name, &c->protect_home, message, flags, error);
1174
1175 if (streq(name, "KeyringMode"))
1176 return bus_set_transient_keyring_mode(u, name, &c->keyring_mode, message, flags, error);
1177
1178 if (streq(name, "RuntimeDirectoryPreserve"))
1179 return bus_set_transient_preserve_mode(u, name, &c->runtime_directory_preserve_mode, message, flags, error);
1180
1181 if (streq(name, "UMask"))
1182 return bus_set_transient_mode_t(u, name, &c->umask, message, flags, error);
1183
1184 if (streq(name, "RuntimeDirectoryMode"))
1185 return bus_set_transient_mode_t(u, name, &c->directories[EXEC_DIRECTORY_RUNTIME].mode, message, flags, error);
1186
1187 if (streq(name, "StateDirectoryMode"))
1188 return bus_set_transient_mode_t(u, name, &c->directories[EXEC_DIRECTORY_STATE].mode, message, flags, error);
1189
1190 if (streq(name, "CacheDirectoryMode"))
1191 return bus_set_transient_mode_t(u, name, &c->directories[EXEC_DIRECTORY_CACHE].mode, message, flags, error);
1192
1193 if (streq(name, "LogsDirectoryMode"))
1194 return bus_set_transient_mode_t(u, name, &c->directories[EXEC_DIRECTORY_LOGS].mode, message, flags, error);
1195
1196 if (streq(name, "ConfigurationDirectoryMode"))
1197 return bus_set_transient_mode_t(u, name, &c->directories[EXEC_DIRECTORY_CONFIGURATION].mode, message, flags, error);
1198
1199 if (streq(name, "SELinuxContext"))
1200 return bus_set_transient_string(u, name, &c->selinux_context, message, flags, error);
1201
1202 if (streq(name, "SecureBits"))
1203 return bus_set_transient_secure_bits(u, name, &c->secure_bits, message, flags, error);
1204
1205 if (streq(name, "CapabilityBoundingSet"))
1206 return bus_set_transient_capability(u, name, &c->capability_bounding_set, message, flags, error);
1207
1208 if (streq(name, "AmbientCapabilities"))
1209 return bus_set_transient_capability(u, name, &c->capability_ambient_set, message, flags, error);
1210
1211 if (streq(name, "CPUSchedulingPolicy"))
1212 return bus_set_transient_sched_policy(u, name, &c->cpu_sched_policy, message, flags, error);
1213
1214 if (streq(name, "RestrictNamespaces"))
1215 return bus_set_transient_namespace_flag(u, name, &c->restrict_namespaces, message, flags, error);
1216
1217 if (streq(name, "MountFlags"))
1218 return bus_set_transient_mount_flags(u, name, &c->mount_flags, message, flags, error);
1219
1220 if (streq(name, "SupplementaryGroups")) {
1221 _cleanup_strv_free_ char **l = NULL;
1222 char **p;
1223
1224 r = sd_bus_message_read_strv(message, &l);
1225 if (r < 0)
1226 return r;
1227
1228 STRV_FOREACH(p, l) {
1229 if (!isempty(*p) && !valid_user_group_name_or_id(*p))
1230 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid supplementary group names");
1231 }
1232
1233 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1234 if (strv_isempty(l)) {
1235 c->supplementary_groups = strv_free(c->supplementary_groups);
1236 unit_write_settingf(u, flags, name, "%s=", name);
1237 } else {
1238 _cleanup_free_ char *joined = NULL;
1239
1240 r = strv_extend_strv(&c->supplementary_groups, l, true);
1241 if (r < 0)
1242 return -ENOMEM;
1243
1244 joined = strv_join(c->supplementary_groups, " ");
1245 if (!joined)
1246 return -ENOMEM;
1247
1248 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "%s=%s", name, joined);
1249 }
1250 }
1251
1252 return 1;
1253
1254 } else if (streq(name, "SyslogLevel")) {
1255 int32_t level;
1256
1257 r = sd_bus_message_read(message, "i", &level);
1258 if (r < 0)
1259 return r;
1260
1261 if (!log_level_is_valid(level))
1262 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Log level value out of range");
1263
1264 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1265 c->syslog_priority = (c->syslog_priority & LOG_FACMASK) | level;
1266 unit_write_settingf(u, flags, name, "SyslogLevel=%i", level);
1267 }
1268
1269 return 1;
1270
1271 } else if (streq(name, "SyslogFacility")) {
1272 int32_t facility;
1273
1274 r = sd_bus_message_read(message, "i", &facility);
1275 if (r < 0)
1276 return r;
1277
1278 if (!log_facility_unshifted_is_valid(facility))
1279 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Log facility value out of range");
1280
1281 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1282 c->syslog_priority = (facility << 3) | LOG_PRI(c->syslog_priority);
1283 unit_write_settingf(u, flags, name, "SyslogFacility=%i", facility);
1284 }
1285
1286 return 1;
1287
1288 } else if (streq(name, "LogExtraFields")) {
1289 size_t n = 0;
1290
1291 r = sd_bus_message_enter_container(message, 'a', "ay");
1292 if (r < 0)
1293 return r;
1294
1295 for (;;) {
1296 _cleanup_free_ void *copy = NULL;
1297 struct iovec *t;
1298 const char *eq;
1299 const void *p;
1300 size_t sz;
1301
1302 /* Note that we expect a byte array for each field, instead of a string. That's because on the
1303 * lower-level journal fields can actually contain binary data and are not restricted to text,
1304 * and we should not "lose precision" in our types on the way. That said, I am pretty sure
1305 * actually encoding binary data as unit metadata is not a good idea. Hence we actually refuse
1306 * any actual binary data, and only accept UTF-8. This allows us to eventually lift this
1307 * limitation, should a good, valid usecase arise. */
1308
1309 r = sd_bus_message_read_array(message, 'y', &p, &sz);
1310 if (r < 0)
1311 return r;
1312 if (r == 0)
1313 break;
1314
1315 if (memchr(p, 0, sz))
1316 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Journal field contains zero byte");
1317
1318 eq = memchr(p, '=', sz);
1319 if (!eq)
1320 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Journal field contains no '=' character");
1321 if (!journal_field_valid(p, eq - (const char*) p, false))
1322 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Journal field invalid");
1323
1324 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1325 t = reallocarray(c->log_extra_fields, c->n_log_extra_fields+1, sizeof(struct iovec));
1326 if (!t)
1327 return -ENOMEM;
1328 c->log_extra_fields = t;
1329 }
1330
1331 copy = malloc(sz + 1);
1332 if (!copy)
1333 return -ENOMEM;
1334
1335 memcpy(copy, p, sz);
1336 ((uint8_t*) copy)[sz] = 0;
1337
1338 if (!utf8_is_valid(copy))
1339 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Journal field is not valid UTF-8");
1340
1341 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1342 c->log_extra_fields[c->n_log_extra_fields++] = IOVEC_MAKE(copy, sz);
1343 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS|UNIT_ESCAPE_C, name, "LogExtraFields=%s", (char*) copy);
1344
1345 copy = NULL;
1346 }
1347
1348 n++;
1349 }
1350
1351 r = sd_bus_message_exit_container(message);
1352 if (r < 0)
1353 return r;
1354
1355 if (!UNIT_WRITE_FLAGS_NOOP(flags) && n == 0) {
1356 exec_context_free_log_extra_fields(c);
1357 unit_write_setting(u, flags, name, "LogExtraFields=");
1358 }
1359
1360 return 1;
1361 }
1362
1363 #if HAVE_SECCOMP
1364
1365 if (streq(name, "SystemCallErrorNumber"))
1366 return bus_set_transient_errno(u, name, &c->syscall_errno, message, flags, error);
1367
1368 if (streq(name, "SystemCallFilter")) {
1369 int whitelist;
1370 _cleanup_strv_free_ char **l = NULL;
1371
1372 r = sd_bus_message_enter_container(message, 'r', "bas");
1373 if (r < 0)
1374 return r;
1375
1376 r = sd_bus_message_read(message, "b", &whitelist);
1377 if (r < 0)
1378 return r;
1379
1380 r = sd_bus_message_read_strv(message, &l);
1381 if (r < 0)
1382 return r;
1383
1384 r = sd_bus_message_exit_container(message);
1385 if (r < 0)
1386 return r;
1387
1388 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1389 _cleanup_free_ char *joined = NULL;
1390 bool invert = !whitelist;
1391 char **s;
1392
1393 if (strv_isempty(l)) {
1394 c->syscall_whitelist = false;
1395 c->syscall_filter = hashmap_free(c->syscall_filter);
1396
1397 unit_write_settingf(u, flags, name, "SystemCallFilter=");
1398 return 1;
1399 }
1400
1401 if (!c->syscall_filter) {
1402 c->syscall_filter = hashmap_new(NULL);
1403 if (!c->syscall_filter)
1404 return log_oom();
1405
1406 c->syscall_whitelist = whitelist;
1407
1408 if (c->syscall_whitelist) {
1409 r = seccomp_parse_syscall_filter("@default", -1, c->syscall_filter, SECCOMP_PARSE_WHITELIST | (invert ? SECCOMP_PARSE_INVERT : 0));
1410 if (r < 0)
1411 return r;
1412 }
1413 }
1414
1415 STRV_FOREACH(s, l) {
1416 _cleanup_free_ char *n = NULL;
1417 int e;
1418
1419 r = parse_syscall_and_errno(*s, &n, &e);
1420 if (r < 0)
1421 return r;
1422
1423 r = seccomp_parse_syscall_filter(n, e, c->syscall_filter, (invert ? SECCOMP_PARSE_INVERT : 0) | (c->syscall_whitelist ? SECCOMP_PARSE_WHITELIST : 0));
1424 if (r < 0)
1425 return r;
1426 }
1427
1428 joined = strv_join(l, " ");
1429 if (!joined)
1430 return -ENOMEM;
1431
1432 unit_write_settingf(u, flags, name, "SystemCallFilter=%s%s", whitelist ? "" : "~", joined);
1433 }
1434
1435 return 1;
1436
1437 } else if (streq(name, "SystemCallArchitectures")) {
1438 _cleanup_strv_free_ char **l = NULL;
1439
1440 r = sd_bus_message_read_strv(message, &l);
1441 if (r < 0)
1442 return r;
1443
1444 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1445 _cleanup_free_ char *joined = NULL;
1446
1447 if (strv_isempty(l))
1448 c->syscall_archs = set_free(c->syscall_archs);
1449 else {
1450 char **s;
1451
1452 r = set_ensure_allocated(&c->syscall_archs, NULL);
1453 if (r < 0)
1454 return r;
1455
1456 STRV_FOREACH(s, l) {
1457 uint32_t a;
1458
1459 r = seccomp_arch_from_string(*s, &a);
1460 if (r < 0)
1461 return r;
1462
1463 r = set_put(c->syscall_archs, UINT32_TO_PTR(a + 1));
1464 if (r < 0)
1465 return r;
1466 }
1467
1468 }
1469
1470 joined = strv_join(l, " ");
1471 if (!joined)
1472 return -ENOMEM;
1473
1474 unit_write_settingf(u, flags, name, "%s=%s", name, joined);
1475 }
1476
1477 return 1;
1478
1479 } else if (streq(name, "RestrictAddressFamilies")) {
1480 int whitelist;
1481 _cleanup_strv_free_ char **l = NULL;
1482
1483 r = sd_bus_message_enter_container(message, 'r', "bas");
1484 if (r < 0)
1485 return r;
1486
1487 r = sd_bus_message_read(message, "b", &whitelist);
1488 if (r < 0)
1489 return r;
1490
1491 r = sd_bus_message_read_strv(message, &l);
1492 if (r < 0)
1493 return r;
1494
1495 r = sd_bus_message_exit_container(message);
1496 if (r < 0)
1497 return r;
1498
1499 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1500 _cleanup_free_ char *joined = NULL;
1501 bool invert = !whitelist;
1502 char **s;
1503
1504 if (strv_isempty(l)) {
1505 c->address_families_whitelist = false;
1506 c->address_families = set_free(c->address_families);
1507
1508 unit_write_settingf(u, flags, name, "RestrictAddressFamilies=");
1509 return 1;
1510 }
1511
1512 if (!c->address_families) {
1513 c->address_families = set_new(NULL);
1514 if (!c->address_families)
1515 return log_oom();
1516
1517 c->address_families_whitelist = whitelist;
1518 }
1519
1520 STRV_FOREACH(s, l) {
1521 int af;
1522
1523 af = af_from_name(*s);
1524 if (af <= 0)
1525 return -EINVAL;
1526
1527 if (!invert == c->address_families_whitelist) {
1528 r = set_put(c->address_families, INT_TO_PTR(af));
1529 if (r < 0)
1530 return r;
1531 } else
1532 (void) set_remove(c->address_families, INT_TO_PTR(af));
1533 }
1534
1535 joined = strv_join(l, " ");
1536 if (!joined)
1537 return -ENOMEM;
1538
1539 unit_write_settingf(u, flags, name, "RestrictAddressFamilies=%s%s", whitelist ? "" : "~", joined);
1540 }
1541
1542 return 1;
1543 }
1544 #endif
1545 if (streq(name, "CPUAffinity")) {
1546 const void *a;
1547 size_t n = 0;
1548
1549 r = sd_bus_message_read_array(message, 'y', &a, &n);
1550 if (r < 0)
1551 return r;
1552
1553 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1554 if (n == 0) {
1555 c->cpuset = cpu_set_mfree(c->cpuset);
1556 c->cpuset_ncpus = 0;
1557 unit_write_settingf(u, flags, name, "%s=", name);
1558 } else {
1559 _cleanup_free_ char *str = NULL;
1560 size_t allocated = 0, len = 0, i, ncpus;
1561
1562 ncpus = CPU_SIZE_TO_NUM(n);
1563
1564 for (i = 0; i < ncpus; i++) {
1565 _cleanup_free_ char *p = NULL;
1566 size_t add;
1567
1568 if (!CPU_ISSET_S(i, n, (cpu_set_t*) a))
1569 continue;
1570
1571 r = asprintf(&p, "%zu", i);
1572 if (r < 0)
1573 return -ENOMEM;
1574
1575 add = strlen(p);
1576
1577 if (!GREEDY_REALLOC(str, allocated, len + add + 2))
1578 return -ENOMEM;
1579
1580 strcpy(mempcpy(str + len, p, add), " ");
1581 len += add + 1;
1582 }
1583
1584 if (len != 0)
1585 str[len - 1] = '\0';
1586
1587 if (!c->cpuset || c->cpuset_ncpus < ncpus) {
1588 cpu_set_t *cpuset;
1589
1590 cpuset = CPU_ALLOC(ncpus);
1591 if (!cpuset)
1592 return -ENOMEM;
1593
1594 CPU_ZERO_S(n, cpuset);
1595 if (c->cpuset) {
1596 CPU_OR_S(CPU_ALLOC_SIZE(c->cpuset_ncpus), cpuset, c->cpuset, (cpu_set_t*) a);
1597 CPU_FREE(c->cpuset);
1598 } else
1599 CPU_OR_S(n, cpuset, cpuset, (cpu_set_t*) a);
1600
1601 c->cpuset = cpuset;
1602 c->cpuset_ncpus = ncpus;
1603 } else
1604 CPU_OR_S(n, c->cpuset, c->cpuset, (cpu_set_t*) a);
1605
1606 unit_write_settingf(u, flags, name, "%s=%s", name, str);
1607 }
1608 }
1609
1610 return 1;
1611
1612 } else if (streq(name, "IOSchedulingClass")) {
1613 int32_t q;
1614
1615 r = sd_bus_message_read(message, "i", &q);
1616 if (r < 0)
1617 return r;
1618
1619 if (!ioprio_class_is_valid(q))
1620 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid IO scheduling class: %i", q);
1621
1622 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1623 _cleanup_free_ char *s = NULL;
1624
1625 r = ioprio_class_to_string_alloc(q, &s);
1626 if (r < 0)
1627 return r;
1628
1629 c->ioprio = IOPRIO_PRIO_VALUE(q, IOPRIO_PRIO_DATA(c->ioprio));
1630 c->ioprio_set = true;
1631
1632 unit_write_settingf(u, flags, name, "IOSchedulingClass=%s", s);
1633 }
1634
1635 return 1;
1636
1637 } else if (streq(name, "IOSchedulingPriority")) {
1638 int32_t p;
1639
1640 r = sd_bus_message_read(message, "i", &p);
1641 if (r < 0)
1642 return r;
1643
1644 if (!ioprio_priority_is_valid(p))
1645 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid IO scheduling priority: %i", p);
1646
1647 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1648 c->ioprio = IOPRIO_PRIO_VALUE(IOPRIO_PRIO_CLASS(c->ioprio), p);
1649 c->ioprio_set = true;
1650
1651 unit_write_settingf(u, flags, name, "IOSchedulingPriority=%i", p);
1652 }
1653
1654 return 1;
1655
1656 } else if (streq(name, "WorkingDirectory")) {
1657 const char *s;
1658 bool missing_ok;
1659
1660 r = sd_bus_message_read(message, "s", &s);
1661 if (r < 0)
1662 return r;
1663
1664 if (s[0] == '-') {
1665 missing_ok = true;
1666 s++;
1667 } else
1668 missing_ok = false;
1669
1670 if (!isempty(s) && !streq(s, "~") && !path_is_absolute(s))
1671 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "WorkingDirectory= expects an absolute path or '~'");
1672
1673 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1674 if (streq(s, "~")) {
1675 c->working_directory = mfree(c->working_directory);
1676 c->working_directory_home = true;
1677 } else {
1678 r = free_and_strdup(&c->working_directory, empty_to_null(s));
1679 if (r < 0)
1680 return r;
1681
1682 c->working_directory_home = false;
1683 }
1684
1685 c->working_directory_missing_ok = missing_ok;
1686 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "WorkingDirectory=%s%s", missing_ok ? "-" : "", s);
1687 }
1688
1689 return 1;
1690
1691 } else if (STR_IN_SET(name,
1692 "StandardInputFileDescriptorName", "StandardOutputFileDescriptorName", "StandardErrorFileDescriptorName")) {
1693 const char *s;
1694
1695 r = sd_bus_message_read(message, "s", &s);
1696 if (r < 0)
1697 return r;
1698
1699 if (!isempty(s) && !fdname_is_valid(s))
1700 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid file descriptor name");
1701
1702 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1703
1704 if (streq(name, "StandardInputFileDescriptorName")) {
1705 r = free_and_strdup(c->stdio_fdname + STDIN_FILENO, empty_to_null(s));
1706 if (r < 0)
1707 return r;
1708
1709 c->std_input = EXEC_INPUT_NAMED_FD;
1710 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "StandardInput=fd:%s", exec_context_fdname(c, STDIN_FILENO));
1711
1712 } else if (streq(name, "StandardOutputFileDescriptorName")) {
1713 r = free_and_strdup(c->stdio_fdname + STDOUT_FILENO, empty_to_null(s));
1714 if (r < 0)
1715 return r;
1716
1717 c->std_output = EXEC_OUTPUT_NAMED_FD;
1718 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "StandardOutput=fd:%s", exec_context_fdname(c, STDOUT_FILENO));
1719
1720 } else {
1721 assert(streq(name, "StandardErrorFileDescriptorName"));
1722
1723 r = free_and_strdup(&c->stdio_fdname[STDERR_FILENO], empty_to_null(s));
1724 if (r < 0)
1725 return r;
1726
1727 c->std_error = EXEC_OUTPUT_NAMED_FD;
1728 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "StandardError=fd:%s", exec_context_fdname(c, STDERR_FILENO));
1729 }
1730 }
1731
1732 return 1;
1733
1734 } else if (STR_IN_SET(name, "StandardInputFile", "StandardOutputFile", "StandardErrorFile")) {
1735 const char *s;
1736
1737 r = sd_bus_message_read(message, "s", &s);
1738 if (r < 0)
1739 return r;
1740
1741 if (!isempty(s)) {
1742 if (!path_is_absolute(s))
1743 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not absolute", s);
1744 if (!path_is_normalized(s))
1745 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not normalized", s);
1746 }
1747
1748 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1749
1750 if (streq(name, "StandardInputFile")) {
1751 r = free_and_strdup(&c->stdio_file[STDIN_FILENO], empty_to_null(s));
1752 if (r < 0)
1753 return r;
1754
1755 c->std_input = EXEC_INPUT_FILE;
1756 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "StandardInput=file:%s", s);
1757
1758 } else if (streq(name, "StandardOutputFile")) {
1759 r = free_and_strdup(&c->stdio_file[STDOUT_FILENO], empty_to_null(s));
1760 if (r < 0)
1761 return r;
1762
1763 c->std_output = EXEC_OUTPUT_FILE;
1764 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "StandardOutput=file:%s", s);
1765
1766 } else {
1767 assert(streq(name, "StandardErrorFile"));
1768
1769 r = free_and_strdup(&c->stdio_file[STDERR_FILENO], empty_to_null(s));
1770 if (r < 0)
1771 return r;
1772
1773 c->std_error = EXEC_OUTPUT_FILE;
1774 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "StandardError=file:%s", s);
1775 }
1776 }
1777
1778 return 1;
1779
1780 } else if (streq(name, "StandardInputData")) {
1781 const void *p;
1782 size_t sz;
1783
1784 r = sd_bus_message_read_array(message, 'y', &p, &sz);
1785 if (r < 0)
1786 return r;
1787
1788 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1789 _cleanup_free_ char *encoded = NULL;
1790
1791 if (sz == 0) {
1792 c->stdin_data = mfree(c->stdin_data);
1793 c->stdin_data_size = 0;
1794
1795 unit_write_settingf(u, flags, name, "StandardInputData=");
1796 } else {
1797 void *q;
1798 ssize_t n;
1799
1800 if (c->stdin_data_size + sz < c->stdin_data_size || /* check for overflow */
1801 c->stdin_data_size + sz > EXEC_STDIN_DATA_MAX)
1802 return -E2BIG;
1803
1804 n = base64mem(p, sz, &encoded);
1805 if (n < 0)
1806 return (int) n;
1807
1808 q = realloc(c->stdin_data, c->stdin_data_size + sz);
1809 if (!q)
1810 return -ENOMEM;
1811
1812 memcpy((uint8_t*) q + c->stdin_data_size, p, sz);
1813
1814 c->stdin_data = q;
1815 c->stdin_data_size += sz;
1816
1817 unit_write_settingf(u, flags, name, "StandardInputData=%s", encoded);
1818 }
1819 }
1820
1821 return 1;
1822
1823 } else if (streq(name, "Environment")) {
1824
1825 _cleanup_strv_free_ char **l = NULL;
1826
1827 r = sd_bus_message_read_strv(message, &l);
1828 if (r < 0)
1829 return r;
1830
1831 if (!strv_env_is_valid(l))
1832 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid environment block.");
1833
1834 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1835 if (strv_isempty(l)) {
1836 c->environment = strv_free(c->environment);
1837 unit_write_setting(u, flags, name, "Environment=");
1838 } else {
1839 _cleanup_free_ char *joined = NULL;
1840 char **e;
1841
1842 joined = unit_concat_strv(l, UNIT_ESCAPE_SPECIFIERS|UNIT_ESCAPE_C);
1843 if (!joined)
1844 return -ENOMEM;
1845
1846 e = strv_env_merge(2, c->environment, l);
1847 if (!e)
1848 return -ENOMEM;
1849
1850 strv_free_and_replace(c->environment, e);
1851 unit_write_settingf(u, flags, name, "Environment=%s", joined);
1852 }
1853 }
1854
1855 return 1;
1856
1857 } else if (streq(name, "UnsetEnvironment")) {
1858
1859 _cleanup_strv_free_ char **l = NULL;
1860
1861 r = sd_bus_message_read_strv(message, &l);
1862 if (r < 0)
1863 return r;
1864
1865 if (!strv_env_name_or_assignment_is_valid(l))
1866 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid UnsetEnvironment= list.");
1867
1868 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1869 if (strv_isempty(l)) {
1870 c->unset_environment = strv_free(c->unset_environment);
1871 unit_write_setting(u, flags, name, "UnsetEnvironment=");
1872 } else {
1873 _cleanup_free_ char *joined = NULL;
1874 char **e;
1875
1876 joined = unit_concat_strv(l, UNIT_ESCAPE_SPECIFIERS|UNIT_ESCAPE_C);
1877 if (!joined)
1878 return -ENOMEM;
1879
1880 e = strv_env_merge(2, c->unset_environment, l);
1881 if (!e)
1882 return -ENOMEM;
1883
1884 strv_free_and_replace(c->unset_environment, e);
1885 unit_write_settingf(u, flags, name, "UnsetEnvironment=%s", joined);
1886 }
1887 }
1888
1889 return 1;
1890
1891 } else if (streq(name, "OOMScoreAdjust")) {
1892 int oa;
1893
1894 r = sd_bus_message_read(message, "i", &oa);
1895 if (r < 0)
1896 return r;
1897
1898 if (!oom_score_adjust_is_valid(oa))
1899 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "OOM score adjust value out of range");
1900
1901 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1902 c->oom_score_adjust = oa;
1903 c->oom_score_adjust_set = true;
1904 unit_write_settingf(u, flags, name, "OOMScoreAdjust=%i", oa);
1905 }
1906
1907 return 1;
1908
1909 } else if (streq(name, "EnvironmentFiles")) {
1910
1911 _cleanup_free_ char *joined = NULL;
1912 _cleanup_fclose_ FILE *f = NULL;
1913 _cleanup_strv_free_ char **l = NULL;
1914 size_t size = 0;
1915 char **i;
1916
1917 r = sd_bus_message_enter_container(message, 'a', "(sb)");
1918 if (r < 0)
1919 return r;
1920
1921 f = open_memstream(&joined, &size);
1922 if (!f)
1923 return -ENOMEM;
1924
1925 (void) __fsetlocking(f, FSETLOCKING_BYCALLER);
1926
1927 fputs("EnvironmentFile=\n", f);
1928
1929 STRV_FOREACH(i, c->environment_files) {
1930 _cleanup_free_ char *q = NULL;
1931
1932 q = specifier_escape(*i);
1933 if (!q)
1934 return -ENOMEM;
1935
1936 fprintf(f, "EnvironmentFile=%s\n", q);
1937 }
1938
1939 while ((r = sd_bus_message_enter_container(message, 'r', "sb")) > 0) {
1940 const char *path;
1941 int b;
1942
1943 r = sd_bus_message_read(message, "sb", &path, &b);
1944 if (r < 0)
1945 return r;
1946
1947 r = sd_bus_message_exit_container(message);
1948 if (r < 0)
1949 return r;
1950
1951 if (!path_is_absolute(path))
1952 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not absolute.", path);
1953
1954 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1955 _cleanup_free_ char *q = NULL;
1956 char *buf;
1957
1958 buf = strjoin(b ? "-" : "", path);
1959 if (!buf)
1960 return -ENOMEM;
1961
1962 q = specifier_escape(buf);
1963 if (!q) {
1964 free(buf);
1965 return -ENOMEM;
1966 }
1967
1968 fprintf(f, "EnvironmentFile=%s\n", q);
1969
1970 r = strv_consume(&l, buf);
1971 if (r < 0)
1972 return r;
1973 }
1974 }
1975 if (r < 0)
1976 return r;
1977
1978 r = sd_bus_message_exit_container(message);
1979 if (r < 0)
1980 return r;
1981
1982 r = fflush_and_check(f);
1983 if (r < 0)
1984 return r;
1985
1986 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1987 if (strv_isempty(l)) {
1988 c->environment_files = strv_free(c->environment_files);
1989 unit_write_setting(u, flags, name, "EnvironmentFile=");
1990 } else {
1991 r = strv_extend_strv(&c->environment_files, l, true);
1992 if (r < 0)
1993 return r;
1994
1995 unit_write_setting(u, flags, name, joined);
1996 }
1997 }
1998
1999 return 1;
2000
2001 } else if (streq(name, "PassEnvironment")) {
2002
2003 _cleanup_strv_free_ char **l = NULL;
2004
2005 r = sd_bus_message_read_strv(message, &l);
2006 if (r < 0)
2007 return r;
2008
2009 if (!strv_env_name_is_valid(l))
2010 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid PassEnvironment= block.");
2011
2012 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
2013 if (strv_isempty(l)) {
2014 c->pass_environment = strv_free(c->pass_environment);
2015 unit_write_setting(u, flags, name, "PassEnvironment=");
2016 } else {
2017 _cleanup_free_ char *joined = NULL;
2018
2019 r = strv_extend_strv(&c->pass_environment, l, true);
2020 if (r < 0)
2021 return r;
2022
2023 /* We write just the new settings out to file, with unresolved specifiers. */
2024 joined = unit_concat_strv(l, UNIT_ESCAPE_SPECIFIERS);
2025 if (!joined)
2026 return -ENOMEM;
2027
2028 unit_write_settingf(u, flags, name, "PassEnvironment=%s", joined);
2029 }
2030 }
2031
2032 return 1;
2033
2034 } else if (STR_IN_SET(name, "ReadWriteDirectories", "ReadOnlyDirectories", "InaccessibleDirectories",
2035 "ReadWritePaths", "ReadOnlyPaths", "InaccessiblePaths")) {
2036 _cleanup_strv_free_ char **l = NULL;
2037 char ***dirs;
2038 char **p;
2039
2040 r = sd_bus_message_read_strv(message, &l);
2041 if (r < 0)
2042 return r;
2043
2044 STRV_FOREACH(p, l) {
2045 char *i = *p;
2046 size_t offset;
2047
2048 offset = i[0] == '-';
2049 offset += i[offset] == '+';
2050 if (!path_is_absolute(i + offset))
2051 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid %s", name);
2052
2053 path_simplify(i + offset, false);
2054 }
2055
2056 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
2057 if (STR_IN_SET(name, "ReadWriteDirectories", "ReadWritePaths"))
2058 dirs = &c->read_write_paths;
2059 else if (STR_IN_SET(name, "ReadOnlyDirectories", "ReadOnlyPaths"))
2060 dirs = &c->read_only_paths;
2061 else /* "InaccessiblePaths" */
2062 dirs = &c->inaccessible_paths;
2063
2064 if (strv_isempty(l)) {
2065 *dirs = strv_free(*dirs);
2066 unit_write_settingf(u, flags, name, "%s=", name);
2067 } else {
2068 _cleanup_free_ char *joined = NULL;
2069
2070 joined = unit_concat_strv(l, UNIT_ESCAPE_SPECIFIERS);
2071 if (!joined)
2072 return -ENOMEM;
2073
2074 r = strv_extend_strv(dirs, l, true);
2075 if (r < 0)
2076 return -ENOMEM;
2077
2078 unit_write_settingf(u, flags, name, "%s=%s", name, joined);
2079 }
2080 }
2081
2082 return 1;
2083
2084 } else if (STR_IN_SET(name, "RuntimeDirectory", "StateDirectory", "CacheDirectory", "LogsDirectory", "ConfigurationDirectory")) {
2085 _cleanup_strv_free_ char **l = NULL;
2086 char **p;
2087
2088 r = sd_bus_message_read_strv(message, &l);
2089 if (r < 0)
2090 return r;
2091
2092 STRV_FOREACH(p, l) {
2093 if (!path_is_normalized(*p))
2094 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "%s= path is not normalized: %s", name, *p);
2095
2096 if (path_is_absolute(*p))
2097 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "%s= path is absolute: %s", name, *p);
2098
2099 if (path_startswith(*p, "private"))
2100 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "%s= path can't be 'private': %s", name, *p);
2101 }
2102
2103 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
2104 char ***dirs = NULL;
2105 ExecDirectoryType i;
2106
2107 for (i = 0; i < _EXEC_DIRECTORY_TYPE_MAX; i++)
2108 if (streq(name, exec_directory_type_to_string(i))) {
2109 dirs = &c->directories[i].paths;
2110 break;
2111 }
2112
2113 assert(dirs);
2114
2115 if (strv_isempty(l)) {
2116 *dirs = strv_free(*dirs);
2117 unit_write_settingf(u, flags, name, "%s=", name);
2118 } else {
2119 _cleanup_free_ char *joined = NULL;
2120
2121 r = strv_extend_strv(dirs, l, true);
2122 if (r < 0)
2123 return -ENOMEM;
2124
2125 joined = unit_concat_strv(l, UNIT_ESCAPE_SPECIFIERS);
2126 if (!joined)
2127 return -ENOMEM;
2128
2129 unit_write_settingf(u, flags, name, "%s=%s", name, joined);
2130 }
2131 }
2132
2133 return 1;
2134
2135 } else if (STR_IN_SET(name, "AppArmorProfile", "SmackProcessLabel")) {
2136 int ignore;
2137 const char *s;
2138
2139 r = sd_bus_message_read(message, "(bs)", &ignore, &s);
2140 if (r < 0)
2141 return r;
2142
2143 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
2144 char **p;
2145 bool *b;
2146
2147 if (streq(name, "AppArmorProfile")) {
2148 p = &c->apparmor_profile;
2149 b = &c->apparmor_profile_ignore;
2150 } else { /* "SmackProcessLabel" */
2151 p = &c->smack_process_label;
2152 b = &c->smack_process_label_ignore;
2153 }
2154
2155 if (isempty(s)) {
2156 *p = mfree(*p);
2157 *b = false;
2158 } else {
2159 if (free_and_strdup(p, s) < 0)
2160 return -ENOMEM;
2161 *b = ignore;
2162 }
2163
2164 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "%s=%s%s", name, ignore ? "-" : "", strempty(s));
2165 }
2166
2167 return 1;
2168
2169 } else if (STR_IN_SET(name, "BindPaths", "BindReadOnlyPaths")) {
2170 const char *source, *destination;
2171 int ignore_enoent;
2172 uint64_t mount_flags;
2173 bool empty = true;
2174
2175 r = sd_bus_message_enter_container(message, 'a', "(ssbt)");
2176 if (r < 0)
2177 return r;
2178
2179 while ((r = sd_bus_message_read(message, "(ssbt)", &source, &destination, &ignore_enoent, &mount_flags)) > 0) {
2180
2181 if (!path_is_absolute(source))
2182 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Source path %s is not absolute.", source);
2183 if (!path_is_absolute(destination))
2184 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Destination path %s is not absolute.", destination);
2185 if (!IN_SET(mount_flags, 0, MS_REC))
2186 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unknown mount flags.");
2187
2188 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
2189 r = bind_mount_add(&c->bind_mounts, &c->n_bind_mounts,
2190 &(BindMount) {
2191 .source = strdup(source),
2192 .destination = strdup(destination),
2193 .read_only = !!strstr(name, "ReadOnly"),
2194 .recursive = !!(mount_flags & MS_REC),
2195 .ignore_enoent = ignore_enoent,
2196 });
2197 if (r < 0)
2198 return r;
2199
2200 unit_write_settingf(
2201 u, flags|UNIT_ESCAPE_SPECIFIERS, name,
2202 "%s=%s%s:%s:%s",
2203 name,
2204 ignore_enoent ? "-" : "",
2205 source,
2206 destination,
2207 (mount_flags & MS_REC) ? "rbind" : "norbind");
2208 }
2209
2210 empty = false;
2211 }
2212 if (r < 0)
2213 return r;
2214
2215 r = sd_bus_message_exit_container(message);
2216 if (r < 0)
2217 return r;
2218
2219 if (empty) {
2220 bind_mount_free_many(c->bind_mounts, c->n_bind_mounts);
2221 c->bind_mounts = NULL;
2222 c->n_bind_mounts = 0;
2223
2224 unit_write_settingf(u, flags, name, "%s=", name);
2225 }
2226
2227 return 1;
2228
2229 } else if (streq(name, "TemporaryFileSystem")) {
2230 const char *path, *options;
2231 bool empty = true;
2232
2233 r = sd_bus_message_enter_container(message, 'a', "(ss)");
2234 if (r < 0)
2235 return r;
2236
2237 while ((r = sd_bus_message_read(message, "(ss)", &path, &options)) > 0) {
2238
2239 if (!path_is_absolute(path))
2240 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Mount point %s is not absolute.", path);
2241
2242 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
2243 r = temporary_filesystem_add(&c->temporary_filesystems, &c->n_temporary_filesystems, path, options);
2244 if (r < 0)
2245 return r;
2246
2247 unit_write_settingf(
2248 u, flags|UNIT_ESCAPE_SPECIFIERS, name,
2249 "%s=%s:%s",
2250 name,
2251 path,
2252 options);
2253 }
2254
2255 empty = false;
2256 }
2257 if (r < 0)
2258 return r;
2259
2260 r = sd_bus_message_exit_container(message);
2261 if (r < 0)
2262 return r;
2263
2264 if (empty) {
2265 temporary_filesystem_free_many(c->temporary_filesystems, c->n_temporary_filesystems);
2266 c->temporary_filesystems = NULL;
2267 c->n_temporary_filesystems = 0;
2268
2269 unit_write_settingf(u, flags, name, "%s=", name);
2270 }
2271
2272 return 1;
2273
2274 } else if ((suffix = startswith(name, "Limit"))) {
2275 const char *soft = NULL;
2276 int ri;
2277
2278 ri = rlimit_from_string(suffix);
2279 if (ri < 0) {
2280 soft = endswith(suffix, "Soft");
2281 if (soft) {
2282 const char *n;
2283
2284 n = strndupa(suffix, soft - suffix);
2285 ri = rlimit_from_string(n);
2286 if (ri >= 0)
2287 name = strjoina("Limit", n);
2288 }
2289 }
2290
2291 if (ri >= 0) {
2292 uint64_t rl;
2293 rlim_t x;
2294
2295 r = sd_bus_message_read(message, "t", &rl);
2296 if (r < 0)
2297 return r;
2298
2299 if (rl == (uint64_t) -1)
2300 x = RLIM_INFINITY;
2301 else {
2302 x = (rlim_t) rl;
2303
2304 if ((uint64_t) x != rl)
2305 return -ERANGE;
2306 }
2307
2308 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
2309 _cleanup_free_ char *f = NULL;
2310 struct rlimit nl;
2311
2312 if (c->rlimit[ri]) {
2313 nl = *c->rlimit[ri];
2314
2315 if (soft)
2316 nl.rlim_cur = x;
2317 else
2318 nl.rlim_max = x;
2319 } else
2320 /* When the resource limit is not initialized yet, then assign the value to both fields */
2321 nl = (struct rlimit) {
2322 .rlim_cur = x,
2323 .rlim_max = x,
2324 };
2325
2326 r = rlimit_format(&nl, &f);
2327 if (r < 0)
2328 return r;
2329
2330 if (c->rlimit[ri])
2331 *c->rlimit[ri] = nl;
2332 else {
2333 c->rlimit[ri] = newdup(struct rlimit, &nl, 1);
2334 if (!c->rlimit[ri])
2335 return -ENOMEM;
2336 }
2337
2338 unit_write_settingf(u, flags, name, "%s=%s", name, f);
2339 }
2340
2341 return 1;
2342 }
2343
2344 }
2345
2346 return 0;
2347 }
Unnamed repository; edit this file 'description' to name the repository.