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tree-wide: use _cleanup_ attribute and strv_consume() + TAKE_PTR()
[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
6 #if HAVE_SECCOMP
7 #include <seccomp.h>
8 #endif
9
10 #include "af-list.h"
11 #include "alloc-util.h"
12 #include "bus-util.h"
13 #include "cap-list.h"
14 #include "capability-util.h"
15 #include "cpu-set-util.h"
16 #include "dbus-execute.h"
17 #include "dbus-util.h"
18 #include "env-util.h"
19 #include "errno-list.h"
20 #include "escape.h"
21 #include "execute.h"
22 #include "fd-util.h"
23 #include "fileio.h"
24 #include "hexdecoct.h"
25 #include "io-util.h"
26 #include "ioprio.h"
27 #include "journal-util.h"
28 #include "missing.h"
29 #include "mountpoint-util.h"
30 #include "namespace.h"
31 #include "parse-util.h"
32 #include "path-util.h"
33 #include "process-util.h"
34 #include "rlimit-util.h"
35 #if HAVE_SECCOMP
36 #include "seccomp-util.h"
37 #endif
38 #include "securebits-util.h"
39 #include "specifier.h"
40 #include "strv.h"
41 #include "syslog-util.h"
42 #include "unit-printf.h"
43 #include "user-util.h"
44 #include "utf8.h"
45
46 BUS_DEFINE_PROPERTY_GET_ENUM(bus_property_get_exec_output, exec_output, ExecOutput);
47 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_exec_input, exec_input, ExecInput);
48 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_exec_utmp_mode, exec_utmp_mode, ExecUtmpMode);
49 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_exec_preserve_mode, exec_preserve_mode, ExecPreserveMode);
50 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_exec_keyring_mode, exec_keyring_mode, ExecKeyringMode);
51 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_protect_home, protect_home, ProtectHome);
52 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_protect_system, protect_system, ProtectSystem);
53 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_personality, personality, unsigned long);
54 static BUS_DEFINE_PROPERTY_GET(property_get_ioprio, "i", ExecContext, exec_context_get_effective_ioprio);
55 static BUS_DEFINE_PROPERTY_GET2(property_get_ioprio_class, "i", ExecContext, exec_context_get_effective_ioprio, IOPRIO_PRIO_CLASS);
56 static BUS_DEFINE_PROPERTY_GET2(property_get_ioprio_priority, "i", ExecContext, exec_context_get_effective_ioprio, IOPRIO_PRIO_DATA);
57 static BUS_DEFINE_PROPERTY_GET_GLOBAL(property_get_empty_string, "s", NULL);
58 static BUS_DEFINE_PROPERTY_GET_REF(property_get_syslog_level, "i", int, LOG_PRI);
59 static BUS_DEFINE_PROPERTY_GET_REF(property_get_syslog_facility, "i", int, LOG_FAC);
60
61 static int property_get_environment_files(
62 sd_bus *bus,
63 const char *path,
64 const char *interface,
65 const char *property,
66 sd_bus_message *reply,
67 void *userdata,
68 sd_bus_error *error) {
69
70 ExecContext *c = userdata;
71 char **j;
72 int r;
73
74 assert(bus);
75 assert(reply);
76 assert(c);
77
78 r = sd_bus_message_open_container(reply, 'a', "(sb)");
79 if (r < 0)
80 return r;
81
82 STRV_FOREACH(j, c->environment_files) {
83 const char *fn = *j;
84
85 r = sd_bus_message_append(reply, "(sb)", fn[0] == '-' ? fn + 1 : fn, fn[0] == '-');
86 if (r < 0)
87 return r;
88 }
89
90 return sd_bus_message_close_container(reply);
91 }
92
93 static int property_get_oom_score_adjust(
94 sd_bus *bus,
95 const char *path,
96 const char *interface,
97 const char *property,
98 sd_bus_message *reply,
99 void *userdata,
100 sd_bus_error *error) {
101
102 ExecContext *c = userdata;
103 int32_t n;
104
105 assert(bus);
106 assert(reply);
107 assert(c);
108
109 if (c->oom_score_adjust_set)
110 n = c->oom_score_adjust;
111 else {
112 _cleanup_free_ char *t = NULL;
113
114 n = 0;
115 if (read_one_line_file("/proc/self/oom_score_adj", &t) >= 0)
116 safe_atoi32(t, &n);
117 }
118
119 return sd_bus_message_append(reply, "i", n);
120 }
121
122 static int property_get_nice(
123 sd_bus *bus,
124 const char *path,
125 const char *interface,
126 const char *property,
127 sd_bus_message *reply,
128 void *userdata,
129 sd_bus_error *error) {
130
131 ExecContext *c = userdata;
132 int32_t n;
133
134 assert(bus);
135 assert(reply);
136 assert(c);
137
138 if (c->nice_set)
139 n = c->nice;
140 else {
141 errno = 0;
142 n = getpriority(PRIO_PROCESS, 0);
143 if (errno > 0)
144 n = 0;
145 }
146
147 return sd_bus_message_append(reply, "i", n);
148 }
149
150 static int property_get_cpu_sched_policy(
151 sd_bus *bus,
152 const char *path,
153 const char *interface,
154 const char *property,
155 sd_bus_message *reply,
156 void *userdata,
157 sd_bus_error *error) {
158
159 ExecContext *c = userdata;
160 int32_t n;
161
162 assert(bus);
163 assert(reply);
164 assert(c);
165
166 if (c->cpu_sched_set)
167 n = c->cpu_sched_policy;
168 else {
169 n = sched_getscheduler(0);
170 if (n < 0)
171 n = SCHED_OTHER;
172 }
173
174 return sd_bus_message_append(reply, "i", n);
175 }
176
177 static int property_get_cpu_sched_priority(
178 sd_bus *bus,
179 const char *path,
180 const char *interface,
181 const char *property,
182 sd_bus_message *reply,
183 void *userdata,
184 sd_bus_error *error) {
185
186 ExecContext *c = userdata;
187 int32_t n;
188
189 assert(bus);
190 assert(reply);
191 assert(c);
192
193 if (c->cpu_sched_set)
194 n = c->cpu_sched_priority;
195 else {
196 struct sched_param p = {};
197
198 if (sched_getparam(0, &p) >= 0)
199 n = p.sched_priority;
200 else
201 n = 0;
202 }
203
204 return sd_bus_message_append(reply, "i", n);
205 }
206
207 static int property_get_cpu_affinity(
208 sd_bus *bus,
209 const char *path,
210 const char *interface,
211 const char *property,
212 sd_bus_message *reply,
213 void *userdata,
214 sd_bus_error *error) {
215
216 ExecContext *c = userdata;
217 _cleanup_free_ uint8_t *array = NULL;
218 size_t allocated;
219
220 assert(bus);
221 assert(reply);
222 assert(c);
223
224 (void) cpu_set_to_dbus(&c->cpu_set, &array, &allocated);
225 return sd_bus_message_append_array(reply, 'y', array, allocated);
226 }
227
228 static int property_get_timer_slack_nsec(
229 sd_bus *bus,
230 const char *path,
231 const char *interface,
232 const char *property,
233 sd_bus_message *reply,
234 void *userdata,
235 sd_bus_error *error) {
236
237 ExecContext *c = userdata;
238 uint64_t u;
239
240 assert(bus);
241 assert(reply);
242 assert(c);
243
244 if (c->timer_slack_nsec != NSEC_INFINITY)
245 u = (uint64_t) c->timer_slack_nsec;
246 else
247 u = (uint64_t) prctl(PR_GET_TIMERSLACK);
248
249 return sd_bus_message_append(reply, "t", u);
250 }
251
252 static int property_get_syscall_filter(
253 sd_bus *bus,
254 const char *path,
255 const char *interface,
256 const char *property,
257 sd_bus_message *reply,
258 void *userdata,
259 sd_bus_error *error) {
260
261 ExecContext *c = userdata;
262 _cleanup_strv_free_ char **l = NULL;
263 int r;
264
265 #if HAVE_SECCOMP
266 Iterator i;
267 void *id, *val;
268 #endif
269
270 assert(bus);
271 assert(reply);
272 assert(c);
273
274 r = sd_bus_message_open_container(reply, 'r', "bas");
275 if (r < 0)
276 return r;
277
278 r = sd_bus_message_append(reply, "b", c->syscall_whitelist);
279 if (r < 0)
280 return r;
281
282 #if HAVE_SECCOMP
283 HASHMAP_FOREACH_KEY(val, id, c->syscall_filter, i) {
284 _cleanup_free_ char *name = NULL;
285 const char *e = NULL;
286 char *s;
287 int num = PTR_TO_INT(val);
288
289 name = seccomp_syscall_resolve_num_arch(SCMP_ARCH_NATIVE, PTR_TO_INT(id) - 1);
290 if (!name)
291 continue;
292
293 if (num >= 0) {
294 e = errno_to_name(num);
295 if (e) {
296 s = strjoin(name, ":", e);
297 if (!s)
298 return -ENOMEM;
299 } else {
300 r = asprintf(&s, "%s:%d", name, num);
301 if (r < 0)
302 return -ENOMEM;
303 }
304 } else
305 s = TAKE_PTR(name);
306
307 r = strv_consume(&l, s);
308 if (r < 0)
309 return r;
310 }
311 #endif
312
313 strv_sort(l);
314
315 r = sd_bus_message_append_strv(reply, l);
316 if (r < 0)
317 return r;
318
319 return sd_bus_message_close_container(reply);
320 }
321
322 static int property_get_syscall_archs(
323 sd_bus *bus,
324 const char *path,
325 const char *interface,
326 const char *property,
327 sd_bus_message *reply,
328 void *userdata,
329 sd_bus_error *error) {
330
331 ExecContext *c = userdata;
332 _cleanup_strv_free_ char **l = NULL;
333 int r;
334
335 #if HAVE_SECCOMP
336 Iterator i;
337 void *id;
338 #endif
339
340 assert(bus);
341 assert(reply);
342 assert(c);
343
344 #if HAVE_SECCOMP
345 SET_FOREACH(id, c->syscall_archs, i) {
346 const char *name;
347
348 name = seccomp_arch_to_string(PTR_TO_UINT32(id) - 1);
349 if (!name)
350 continue;
351
352 r = strv_extend(&l, name);
353 if (r < 0)
354 return -ENOMEM;
355 }
356 #endif
357
358 strv_sort(l);
359
360 r = sd_bus_message_append_strv(reply, l);
361 if (r < 0)
362 return r;
363
364 return 0;
365 }
366
367 static int property_get_selinux_context(
368 sd_bus *bus,
369 const char *path,
370 const char *interface,
371 const char *property,
372 sd_bus_message *reply,
373 void *userdata,
374 sd_bus_error *error) {
375
376 ExecContext *c = userdata;
377
378 assert(bus);
379 assert(reply);
380 assert(c);
381
382 return sd_bus_message_append(reply, "(bs)", c->selinux_context_ignore, c->selinux_context);
383 }
384
385 static int property_get_apparmor_profile(
386 sd_bus *bus,
387 const char *path,
388 const char *interface,
389 const char *property,
390 sd_bus_message *reply,
391 void *userdata,
392 sd_bus_error *error) {
393
394 ExecContext *c = userdata;
395
396 assert(bus);
397 assert(reply);
398 assert(c);
399
400 return sd_bus_message_append(reply, "(bs)", c->apparmor_profile_ignore, c->apparmor_profile);
401 }
402
403 static int property_get_smack_process_label(
404 sd_bus *bus,
405 const char *path,
406 const char *interface,
407 const char *property,
408 sd_bus_message *reply,
409 void *userdata,
410 sd_bus_error *error) {
411
412 ExecContext *c = userdata;
413
414 assert(bus);
415 assert(reply);
416 assert(c);
417
418 return sd_bus_message_append(reply, "(bs)", c->smack_process_label_ignore, c->smack_process_label);
419 }
420
421 static int property_get_address_families(
422 sd_bus *bus,
423 const char *path,
424 const char *interface,
425 const char *property,
426 sd_bus_message *reply,
427 void *userdata,
428 sd_bus_error *error) {
429
430 ExecContext *c = userdata;
431 _cleanup_strv_free_ char **l = NULL;
432 Iterator i;
433 void *af;
434 int r;
435
436 assert(bus);
437 assert(reply);
438 assert(c);
439
440 r = sd_bus_message_open_container(reply, 'r', "bas");
441 if (r < 0)
442 return r;
443
444 r = sd_bus_message_append(reply, "b", c->address_families_whitelist);
445 if (r < 0)
446 return r;
447
448 SET_FOREACH(af, c->address_families, i) {
449 const char *name;
450
451 name = af_to_name(PTR_TO_INT(af));
452 if (!name)
453 continue;
454
455 r = strv_extend(&l, name);
456 if (r < 0)
457 return -ENOMEM;
458 }
459
460 strv_sort(l);
461
462 r = sd_bus_message_append_strv(reply, l);
463 if (r < 0)
464 return r;
465
466 return sd_bus_message_close_container(reply);
467 }
468
469 static int property_get_working_directory(
470 sd_bus *bus,
471 const char *path,
472 const char *interface,
473 const char *property,
474 sd_bus_message *reply,
475 void *userdata,
476 sd_bus_error *error) {
477
478 ExecContext *c = userdata;
479 const char *wd;
480
481 assert(bus);
482 assert(reply);
483 assert(c);
484
485 if (c->working_directory_home)
486 wd = "~";
487 else
488 wd = c->working_directory;
489
490 if (c->working_directory_missing_ok)
491 wd = strjoina("!", wd);
492
493 return sd_bus_message_append(reply, "s", wd);
494 }
495
496 static int property_get_stdio_fdname(
497 sd_bus *bus,
498 const char *path,
499 const char *interface,
500 const char *property,
501 sd_bus_message *reply,
502 void *userdata,
503 sd_bus_error *error) {
504
505 ExecContext *c = userdata;
506 int fileno;
507
508 assert(bus);
509 assert(c);
510 assert(property);
511 assert(reply);
512
513 if (streq(property, "StandardInputFileDescriptorName"))
514 fileno = STDIN_FILENO;
515 else if (streq(property, "StandardOutputFileDescriptorName"))
516 fileno = STDOUT_FILENO;
517 else {
518 assert(streq(property, "StandardErrorFileDescriptorName"));
519 fileno = STDERR_FILENO;
520 }
521
522 return sd_bus_message_append(reply, "s", exec_context_fdname(c, fileno));
523 }
524
525 static int property_get_input_data(
526 sd_bus *bus,
527 const char *path,
528 const char *interface,
529 const char *property,
530 sd_bus_message *reply,
531 void *userdata,
532 sd_bus_error *error) {
533
534 ExecContext *c = userdata;
535
536 assert(bus);
537 assert(c);
538 assert(property);
539 assert(reply);
540
541 return sd_bus_message_append_array(reply, 'y', c->stdin_data, c->stdin_data_size);
542 }
543
544 static int property_get_bind_paths(
545 sd_bus *bus,
546 const char *path,
547 const char *interface,
548 const char *property,
549 sd_bus_message *reply,
550 void *userdata,
551 sd_bus_error *error) {
552
553 ExecContext *c = userdata;
554 unsigned i;
555 bool ro;
556 int r;
557
558 assert(bus);
559 assert(c);
560 assert(property);
561 assert(reply);
562
563 ro = strstr(property, "ReadOnly");
564
565 r = sd_bus_message_open_container(reply, 'a', "(ssbt)");
566 if (r < 0)
567 return r;
568
569 for (i = 0; i < c->n_bind_mounts; i++) {
570
571 if (ro != c->bind_mounts[i].read_only)
572 continue;
573
574 r = sd_bus_message_append(
575 reply, "(ssbt)",
576 c->bind_mounts[i].source,
577 c->bind_mounts[i].destination,
578 c->bind_mounts[i].ignore_enoent,
579 c->bind_mounts[i].recursive ? (uint64_t) MS_REC : (uint64_t) 0);
580 if (r < 0)
581 return r;
582 }
583
584 return sd_bus_message_close_container(reply);
585 }
586
587 static int property_get_temporary_filesystems(
588 sd_bus *bus,
589 const char *path,
590 const char *interface,
591 const char *property,
592 sd_bus_message *reply,
593 void *userdata,
594 sd_bus_error *error) {
595
596 ExecContext *c = userdata;
597 unsigned i;
598 int r;
599
600 assert(bus);
601 assert(c);
602 assert(property);
603 assert(reply);
604
605 r = sd_bus_message_open_container(reply, 'a', "(ss)");
606 if (r < 0)
607 return r;
608
609 for (i = 0; i < c->n_temporary_filesystems; i++) {
610 TemporaryFileSystem *t = c->temporary_filesystems + i;
611
612 r = sd_bus_message_append(
613 reply, "(ss)",
614 t->path,
615 t->options);
616 if (r < 0)
617 return r;
618 }
619
620 return sd_bus_message_close_container(reply);
621 }
622
623 static int property_get_log_extra_fields(
624 sd_bus *bus,
625 const char *path,
626 const char *interface,
627 const char *property,
628 sd_bus_message *reply,
629 void *userdata,
630 sd_bus_error *error) {
631
632 ExecContext *c = userdata;
633 size_t i;
634 int r;
635
636 assert(bus);
637 assert(c);
638 assert(property);
639 assert(reply);
640
641 r = sd_bus_message_open_container(reply, 'a', "ay");
642 if (r < 0)
643 return r;
644
645 for (i = 0; i < c->n_log_extra_fields; i++) {
646 r = sd_bus_message_append_array(reply, 'y', c->log_extra_fields[i].iov_base, c->log_extra_fields[i].iov_len);
647 if (r < 0)
648 return r;
649 }
650
651 return sd_bus_message_close_container(reply);
652 }
653
654 const sd_bus_vtable bus_exec_vtable[] = {
655 SD_BUS_VTABLE_START(0),
656 SD_BUS_PROPERTY("Environment", "as", NULL, offsetof(ExecContext, environment), SD_BUS_VTABLE_PROPERTY_CONST),
657 SD_BUS_PROPERTY("EnvironmentFiles", "a(sb)", property_get_environment_files, 0, SD_BUS_VTABLE_PROPERTY_CONST),
658 SD_BUS_PROPERTY("PassEnvironment", "as", NULL, offsetof(ExecContext, pass_environment), SD_BUS_VTABLE_PROPERTY_CONST),
659 SD_BUS_PROPERTY("UnsetEnvironment", "as", NULL, offsetof(ExecContext, unset_environment), SD_BUS_VTABLE_PROPERTY_CONST),
660 SD_BUS_PROPERTY("UMask", "u", bus_property_get_mode, offsetof(ExecContext, umask), SD_BUS_VTABLE_PROPERTY_CONST),
661 SD_BUS_PROPERTY("LimitCPU", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_CPU]), SD_BUS_VTABLE_PROPERTY_CONST),
662 SD_BUS_PROPERTY("LimitCPUSoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_CPU]), SD_BUS_VTABLE_PROPERTY_CONST),
663 SD_BUS_PROPERTY("LimitFSIZE", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_FSIZE]), SD_BUS_VTABLE_PROPERTY_CONST),
664 SD_BUS_PROPERTY("LimitFSIZESoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_FSIZE]), SD_BUS_VTABLE_PROPERTY_CONST),
665 SD_BUS_PROPERTY("LimitDATA", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_DATA]), SD_BUS_VTABLE_PROPERTY_CONST),
666 SD_BUS_PROPERTY("LimitDATASoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_DATA]), SD_BUS_VTABLE_PROPERTY_CONST),
667 SD_BUS_PROPERTY("LimitSTACK", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_STACK]), SD_BUS_VTABLE_PROPERTY_CONST),
668 SD_BUS_PROPERTY("LimitSTACKSoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_STACK]), SD_BUS_VTABLE_PROPERTY_CONST),
669 SD_BUS_PROPERTY("LimitCORE", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_CORE]), SD_BUS_VTABLE_PROPERTY_CONST),
670 SD_BUS_PROPERTY("LimitCORESoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_CORE]), SD_BUS_VTABLE_PROPERTY_CONST),
671 SD_BUS_PROPERTY("LimitRSS", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_RSS]), SD_BUS_VTABLE_PROPERTY_CONST),
672 SD_BUS_PROPERTY("LimitRSSSoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_RSS]), SD_BUS_VTABLE_PROPERTY_CONST),
673 SD_BUS_PROPERTY("LimitNOFILE", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_NOFILE]), SD_BUS_VTABLE_PROPERTY_CONST),
674 SD_BUS_PROPERTY("LimitNOFILESoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_NOFILE]), SD_BUS_VTABLE_PROPERTY_CONST),
675 SD_BUS_PROPERTY("LimitAS", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_AS]), SD_BUS_VTABLE_PROPERTY_CONST),
676 SD_BUS_PROPERTY("LimitASSoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_AS]), SD_BUS_VTABLE_PROPERTY_CONST),
677 SD_BUS_PROPERTY("LimitNPROC", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_NPROC]), SD_BUS_VTABLE_PROPERTY_CONST),
678 SD_BUS_PROPERTY("LimitNPROCSoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_NPROC]), SD_BUS_VTABLE_PROPERTY_CONST),
679 SD_BUS_PROPERTY("LimitMEMLOCK", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_MEMLOCK]), SD_BUS_VTABLE_PROPERTY_CONST),
680 SD_BUS_PROPERTY("LimitMEMLOCKSoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_MEMLOCK]), SD_BUS_VTABLE_PROPERTY_CONST),
681 SD_BUS_PROPERTY("LimitLOCKS", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_LOCKS]), SD_BUS_VTABLE_PROPERTY_CONST),
682 SD_BUS_PROPERTY("LimitLOCKSSoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_LOCKS]), SD_BUS_VTABLE_PROPERTY_CONST),
683 SD_BUS_PROPERTY("LimitSIGPENDING", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_SIGPENDING]), SD_BUS_VTABLE_PROPERTY_CONST),
684 SD_BUS_PROPERTY("LimitSIGPENDINGSoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_SIGPENDING]), SD_BUS_VTABLE_PROPERTY_CONST),
685 SD_BUS_PROPERTY("LimitMSGQUEUE", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_MSGQUEUE]), SD_BUS_VTABLE_PROPERTY_CONST),
686 SD_BUS_PROPERTY("LimitMSGQUEUESoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_MSGQUEUE]), SD_BUS_VTABLE_PROPERTY_CONST),
687 SD_BUS_PROPERTY("LimitNICE", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_NICE]), SD_BUS_VTABLE_PROPERTY_CONST),
688 SD_BUS_PROPERTY("LimitNICESoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_NICE]), SD_BUS_VTABLE_PROPERTY_CONST),
689 SD_BUS_PROPERTY("LimitRTPRIO", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_RTPRIO]), SD_BUS_VTABLE_PROPERTY_CONST),
690 SD_BUS_PROPERTY("LimitRTPRIOSoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_RTPRIO]), SD_BUS_VTABLE_PROPERTY_CONST),
691 SD_BUS_PROPERTY("LimitRTTIME", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_RTTIME]), SD_BUS_VTABLE_PROPERTY_CONST),
692 SD_BUS_PROPERTY("LimitRTTIMESoft", "t", bus_property_get_rlimit, offsetof(ExecContext, rlimit[RLIMIT_RTTIME]), SD_BUS_VTABLE_PROPERTY_CONST),
693 SD_BUS_PROPERTY("WorkingDirectory", "s", property_get_working_directory, 0, SD_BUS_VTABLE_PROPERTY_CONST),
694 SD_BUS_PROPERTY("RootDirectory", "s", NULL, offsetof(ExecContext, root_directory), SD_BUS_VTABLE_PROPERTY_CONST),
695 SD_BUS_PROPERTY("RootImage", "s", NULL, offsetof(ExecContext, root_image), SD_BUS_VTABLE_PROPERTY_CONST),
696 SD_BUS_PROPERTY("OOMScoreAdjust", "i", property_get_oom_score_adjust, 0, SD_BUS_VTABLE_PROPERTY_CONST),
697 SD_BUS_PROPERTY("Nice", "i", property_get_nice, 0, SD_BUS_VTABLE_PROPERTY_CONST),
698 SD_BUS_PROPERTY("IOSchedulingClass", "i", property_get_ioprio_class, 0, SD_BUS_VTABLE_PROPERTY_CONST),
699 SD_BUS_PROPERTY("IOSchedulingPriority", "i", property_get_ioprio_priority, 0, SD_BUS_VTABLE_PROPERTY_CONST),
700 SD_BUS_PROPERTY("CPUSchedulingPolicy", "i", property_get_cpu_sched_policy, 0, SD_BUS_VTABLE_PROPERTY_CONST),
701 SD_BUS_PROPERTY("CPUSchedulingPriority", "i", property_get_cpu_sched_priority, 0, SD_BUS_VTABLE_PROPERTY_CONST),
702 SD_BUS_PROPERTY("CPUAffinity", "ay", property_get_cpu_affinity, 0, SD_BUS_VTABLE_PROPERTY_CONST),
703 SD_BUS_PROPERTY("TimerSlackNSec", "t", property_get_timer_slack_nsec, 0, SD_BUS_VTABLE_PROPERTY_CONST),
704 SD_BUS_PROPERTY("CPUSchedulingResetOnFork", "b", bus_property_get_bool, offsetof(ExecContext, cpu_sched_reset_on_fork), SD_BUS_VTABLE_PROPERTY_CONST),
705 SD_BUS_PROPERTY("NonBlocking", "b", bus_property_get_bool, offsetof(ExecContext, non_blocking), SD_BUS_VTABLE_PROPERTY_CONST),
706 SD_BUS_PROPERTY("StandardInput", "s", property_get_exec_input, offsetof(ExecContext, std_input), SD_BUS_VTABLE_PROPERTY_CONST),
707 SD_BUS_PROPERTY("StandardInputFileDescriptorName", "s", property_get_stdio_fdname, 0, SD_BUS_VTABLE_PROPERTY_CONST),
708 SD_BUS_PROPERTY("StandardInputData", "ay", property_get_input_data, 0, SD_BUS_VTABLE_PROPERTY_CONST),
709 SD_BUS_PROPERTY("StandardOutput", "s", bus_property_get_exec_output, offsetof(ExecContext, std_output), SD_BUS_VTABLE_PROPERTY_CONST),
710 SD_BUS_PROPERTY("StandardOutputFileDescriptorName", "s", property_get_stdio_fdname, 0, SD_BUS_VTABLE_PROPERTY_CONST),
711 SD_BUS_PROPERTY("StandardError", "s", bus_property_get_exec_output, offsetof(ExecContext, std_error), SD_BUS_VTABLE_PROPERTY_CONST),
712 SD_BUS_PROPERTY("StandardErrorFileDescriptorName", "s", property_get_stdio_fdname, 0, SD_BUS_VTABLE_PROPERTY_CONST),
713 SD_BUS_PROPERTY("TTYPath", "s", NULL, offsetof(ExecContext, tty_path), SD_BUS_VTABLE_PROPERTY_CONST),
714 SD_BUS_PROPERTY("TTYReset", "b", bus_property_get_bool, offsetof(ExecContext, tty_reset), SD_BUS_VTABLE_PROPERTY_CONST),
715 SD_BUS_PROPERTY("TTYVHangup", "b", bus_property_get_bool, offsetof(ExecContext, tty_vhangup), SD_BUS_VTABLE_PROPERTY_CONST),
716 SD_BUS_PROPERTY("TTYVTDisallocate", "b", bus_property_get_bool, offsetof(ExecContext, tty_vt_disallocate), SD_BUS_VTABLE_PROPERTY_CONST),
717 SD_BUS_PROPERTY("SyslogPriority", "i", bus_property_get_int, offsetof(ExecContext, syslog_priority), SD_BUS_VTABLE_PROPERTY_CONST),
718 SD_BUS_PROPERTY("SyslogIdentifier", "s", NULL, offsetof(ExecContext, syslog_identifier), SD_BUS_VTABLE_PROPERTY_CONST),
719 SD_BUS_PROPERTY("SyslogLevelPrefix", "b", bus_property_get_bool, offsetof(ExecContext, syslog_level_prefix), SD_BUS_VTABLE_PROPERTY_CONST),
720 SD_BUS_PROPERTY("SyslogLevel", "i", property_get_syslog_level, offsetof(ExecContext, syslog_priority), SD_BUS_VTABLE_PROPERTY_CONST),
721 SD_BUS_PROPERTY("SyslogFacility", "i", property_get_syslog_facility, offsetof(ExecContext, syslog_priority), SD_BUS_VTABLE_PROPERTY_CONST),
722 SD_BUS_PROPERTY("LogLevelMax", "i", bus_property_get_int, offsetof(ExecContext, log_level_max), SD_BUS_VTABLE_PROPERTY_CONST),
723 SD_BUS_PROPERTY("LogRateLimitIntervalUSec", "t", bus_property_get_usec, offsetof(ExecContext, log_rate_limit_interval_usec), SD_BUS_VTABLE_PROPERTY_CONST),
724 SD_BUS_PROPERTY("LogRateLimitBurst", "u", bus_property_get_unsigned, offsetof(ExecContext, log_rate_limit_burst), SD_BUS_VTABLE_PROPERTY_CONST),
725 SD_BUS_PROPERTY("LogExtraFields", "aay", property_get_log_extra_fields, 0, SD_BUS_VTABLE_PROPERTY_CONST),
726 SD_BUS_PROPERTY("SecureBits", "i", bus_property_get_int, offsetof(ExecContext, secure_bits), SD_BUS_VTABLE_PROPERTY_CONST),
727 SD_BUS_PROPERTY("CapabilityBoundingSet", "t", NULL, offsetof(ExecContext, capability_bounding_set), SD_BUS_VTABLE_PROPERTY_CONST),
728 SD_BUS_PROPERTY("AmbientCapabilities", "t", NULL, offsetof(ExecContext, capability_ambient_set), SD_BUS_VTABLE_PROPERTY_CONST),
729 SD_BUS_PROPERTY("User", "s", NULL, offsetof(ExecContext, user), SD_BUS_VTABLE_PROPERTY_CONST),
730 SD_BUS_PROPERTY("Group", "s", NULL, offsetof(ExecContext, group), SD_BUS_VTABLE_PROPERTY_CONST),
731 SD_BUS_PROPERTY("DynamicUser", "b", bus_property_get_bool, offsetof(ExecContext, dynamic_user), SD_BUS_VTABLE_PROPERTY_CONST),
732 SD_BUS_PROPERTY("RemoveIPC", "b", bus_property_get_bool, offsetof(ExecContext, remove_ipc), SD_BUS_VTABLE_PROPERTY_CONST),
733 SD_BUS_PROPERTY("SupplementaryGroups", "as", NULL, offsetof(ExecContext, supplementary_groups), SD_BUS_VTABLE_PROPERTY_CONST),
734 SD_BUS_PROPERTY("PAMName", "s", NULL, offsetof(ExecContext, pam_name), SD_BUS_VTABLE_PROPERTY_CONST),
735 SD_BUS_PROPERTY("ReadWritePaths", "as", NULL, offsetof(ExecContext, read_write_paths), SD_BUS_VTABLE_PROPERTY_CONST),
736 SD_BUS_PROPERTY("ReadOnlyPaths", "as", NULL, offsetof(ExecContext, read_only_paths), SD_BUS_VTABLE_PROPERTY_CONST),
737 SD_BUS_PROPERTY("InaccessiblePaths", "as", NULL, offsetof(ExecContext, inaccessible_paths), SD_BUS_VTABLE_PROPERTY_CONST),
738 SD_BUS_PROPERTY("MountFlags", "t", bus_property_get_ulong, offsetof(ExecContext, mount_flags), SD_BUS_VTABLE_PROPERTY_CONST),
739 SD_BUS_PROPERTY("PrivateTmp", "b", bus_property_get_bool, offsetof(ExecContext, private_tmp), SD_BUS_VTABLE_PROPERTY_CONST),
740 SD_BUS_PROPERTY("PrivateDevices", "b", bus_property_get_bool, offsetof(ExecContext, private_devices), SD_BUS_VTABLE_PROPERTY_CONST),
741 SD_BUS_PROPERTY("ProtectKernelTunables", "b", bus_property_get_bool, offsetof(ExecContext, protect_kernel_tunables), SD_BUS_VTABLE_PROPERTY_CONST),
742 SD_BUS_PROPERTY("ProtectKernelModules", "b", bus_property_get_bool, offsetof(ExecContext, protect_kernel_modules), SD_BUS_VTABLE_PROPERTY_CONST),
743 SD_BUS_PROPERTY("ProtectControlGroups", "b", bus_property_get_bool, offsetof(ExecContext, protect_control_groups), SD_BUS_VTABLE_PROPERTY_CONST),
744 SD_BUS_PROPERTY("PrivateNetwork", "b", bus_property_get_bool, offsetof(ExecContext, private_network), SD_BUS_VTABLE_PROPERTY_CONST),
745 SD_BUS_PROPERTY("PrivateUsers", "b", bus_property_get_bool, offsetof(ExecContext, private_users), SD_BUS_VTABLE_PROPERTY_CONST),
746 SD_BUS_PROPERTY("PrivateMounts", "b", bus_property_get_bool, offsetof(ExecContext, private_mounts), SD_BUS_VTABLE_PROPERTY_CONST),
747 SD_BUS_PROPERTY("ProtectHome", "s", property_get_protect_home, offsetof(ExecContext, protect_home), SD_BUS_VTABLE_PROPERTY_CONST),
748 SD_BUS_PROPERTY("ProtectSystem", "s", property_get_protect_system, offsetof(ExecContext, protect_system), SD_BUS_VTABLE_PROPERTY_CONST),
749 SD_BUS_PROPERTY("SameProcessGroup", "b", bus_property_get_bool, offsetof(ExecContext, same_pgrp), SD_BUS_VTABLE_PROPERTY_CONST),
750 SD_BUS_PROPERTY("UtmpIdentifier", "s", NULL, offsetof(ExecContext, utmp_id), SD_BUS_VTABLE_PROPERTY_CONST),
751 SD_BUS_PROPERTY("UtmpMode", "s", property_get_exec_utmp_mode, offsetof(ExecContext, utmp_mode), SD_BUS_VTABLE_PROPERTY_CONST),
752 SD_BUS_PROPERTY("SELinuxContext", "(bs)", property_get_selinux_context, 0, SD_BUS_VTABLE_PROPERTY_CONST),
753 SD_BUS_PROPERTY("AppArmorProfile", "(bs)", property_get_apparmor_profile, 0, SD_BUS_VTABLE_PROPERTY_CONST),
754 SD_BUS_PROPERTY("SmackProcessLabel", "(bs)", property_get_smack_process_label, 0, SD_BUS_VTABLE_PROPERTY_CONST),
755 SD_BUS_PROPERTY("IgnoreSIGPIPE", "b", bus_property_get_bool, offsetof(ExecContext, ignore_sigpipe), SD_BUS_VTABLE_PROPERTY_CONST),
756 SD_BUS_PROPERTY("NoNewPrivileges", "b", bus_property_get_bool, offsetof(ExecContext, no_new_privileges), SD_BUS_VTABLE_PROPERTY_CONST),
757 SD_BUS_PROPERTY("SystemCallFilter", "(bas)", property_get_syscall_filter, 0, SD_BUS_VTABLE_PROPERTY_CONST),
758 SD_BUS_PROPERTY("SystemCallArchitectures", "as", property_get_syscall_archs, 0, SD_BUS_VTABLE_PROPERTY_CONST),
759 SD_BUS_PROPERTY("SystemCallErrorNumber", "i", bus_property_get_int, offsetof(ExecContext, syscall_errno), SD_BUS_VTABLE_PROPERTY_CONST),
760 SD_BUS_PROPERTY("Personality", "s", property_get_personality, offsetof(ExecContext, personality), SD_BUS_VTABLE_PROPERTY_CONST),
761 SD_BUS_PROPERTY("LockPersonality", "b", bus_property_get_bool, offsetof(ExecContext, lock_personality), SD_BUS_VTABLE_PROPERTY_CONST),
762 SD_BUS_PROPERTY("RestrictAddressFamilies", "(bas)", property_get_address_families, 0, SD_BUS_VTABLE_PROPERTY_CONST),
763 SD_BUS_PROPERTY("RuntimeDirectoryPreserve", "s", property_get_exec_preserve_mode, offsetof(ExecContext, runtime_directory_preserve_mode), SD_BUS_VTABLE_PROPERTY_CONST),
764 SD_BUS_PROPERTY("RuntimeDirectoryMode", "u", bus_property_get_mode, offsetof(ExecContext, directories[EXEC_DIRECTORY_RUNTIME].mode), SD_BUS_VTABLE_PROPERTY_CONST),
765 SD_BUS_PROPERTY("RuntimeDirectory", "as", NULL, offsetof(ExecContext, directories[EXEC_DIRECTORY_RUNTIME].paths), SD_BUS_VTABLE_PROPERTY_CONST),
766 SD_BUS_PROPERTY("StateDirectoryMode", "u", bus_property_get_mode, offsetof(ExecContext, directories[EXEC_DIRECTORY_STATE].mode), SD_BUS_VTABLE_PROPERTY_CONST),
767 SD_BUS_PROPERTY("StateDirectory", "as", NULL, offsetof(ExecContext, directories[EXEC_DIRECTORY_STATE].paths), SD_BUS_VTABLE_PROPERTY_CONST),
768 SD_BUS_PROPERTY("CacheDirectoryMode", "u", bus_property_get_mode, offsetof(ExecContext, directories[EXEC_DIRECTORY_CACHE].mode), SD_BUS_VTABLE_PROPERTY_CONST),
769 SD_BUS_PROPERTY("CacheDirectory", "as", NULL, offsetof(ExecContext, directories[EXEC_DIRECTORY_CACHE].paths), SD_BUS_VTABLE_PROPERTY_CONST),
770 SD_BUS_PROPERTY("LogsDirectoryMode", "u", bus_property_get_mode, offsetof(ExecContext, directories[EXEC_DIRECTORY_LOGS].mode), SD_BUS_VTABLE_PROPERTY_CONST),
771 SD_BUS_PROPERTY("LogsDirectory", "as", NULL, offsetof(ExecContext, directories[EXEC_DIRECTORY_LOGS].paths), SD_BUS_VTABLE_PROPERTY_CONST),
772 SD_BUS_PROPERTY("ConfigurationDirectoryMode", "u", bus_property_get_mode, offsetof(ExecContext, directories[EXEC_DIRECTORY_CONFIGURATION].mode), SD_BUS_VTABLE_PROPERTY_CONST),
773 SD_BUS_PROPERTY("ConfigurationDirectory", "as", NULL, offsetof(ExecContext, directories[EXEC_DIRECTORY_CONFIGURATION].paths), SD_BUS_VTABLE_PROPERTY_CONST),
774 SD_BUS_PROPERTY("MemoryDenyWriteExecute", "b", bus_property_get_bool, offsetof(ExecContext, memory_deny_write_execute), SD_BUS_VTABLE_PROPERTY_CONST),
775 SD_BUS_PROPERTY("RestrictRealtime", "b", bus_property_get_bool, offsetof(ExecContext, restrict_realtime), SD_BUS_VTABLE_PROPERTY_CONST),
776 SD_BUS_PROPERTY("RestrictSUIDSGID", "b", bus_property_get_bool, offsetof(ExecContext, restrict_suid_sgid), SD_BUS_VTABLE_PROPERTY_CONST),
777 SD_BUS_PROPERTY("RestrictNamespaces", "t", bus_property_get_ulong, offsetof(ExecContext, restrict_namespaces), SD_BUS_VTABLE_PROPERTY_CONST),
778 SD_BUS_PROPERTY("BindPaths", "a(ssbt)", property_get_bind_paths, 0, SD_BUS_VTABLE_PROPERTY_CONST),
779 SD_BUS_PROPERTY("BindReadOnlyPaths", "a(ssbt)", property_get_bind_paths, 0, SD_BUS_VTABLE_PROPERTY_CONST),
780 SD_BUS_PROPERTY("TemporaryFileSystem", "a(ss)", property_get_temporary_filesystems, 0, SD_BUS_VTABLE_PROPERTY_CONST),
781 SD_BUS_PROPERTY("MountAPIVFS", "b", bus_property_get_bool, offsetof(ExecContext, mount_apivfs), SD_BUS_VTABLE_PROPERTY_CONST),
782 SD_BUS_PROPERTY("KeyringMode", "s", property_get_exec_keyring_mode, offsetof(ExecContext, keyring_mode), SD_BUS_VTABLE_PROPERTY_CONST),
783 SD_BUS_PROPERTY("ProtectHostname", "b", bus_property_get_bool, offsetof(ExecContext, protect_hostname), SD_BUS_VTABLE_PROPERTY_CONST),
784 SD_BUS_PROPERTY("NetworkNamespacePath", "s", NULL, offsetof(ExecContext, network_namespace_path), SD_BUS_VTABLE_PROPERTY_CONST),
785
786 /* Obsolete/redundant properties: */
787 SD_BUS_PROPERTY("Capabilities", "s", property_get_empty_string, 0, SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
788 SD_BUS_PROPERTY("ReadWriteDirectories", "as", NULL, offsetof(ExecContext, read_write_paths), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
789 SD_BUS_PROPERTY("ReadOnlyDirectories", "as", NULL, offsetof(ExecContext, read_only_paths), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
790 SD_BUS_PROPERTY("InaccessibleDirectories", "as", NULL, offsetof(ExecContext, inaccessible_paths), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
791 SD_BUS_PROPERTY("IOScheduling", "i", property_get_ioprio, 0, SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
792
793 SD_BUS_VTABLE_END
794 };
795
796 static int append_exec_command(sd_bus_message *reply, ExecCommand *c) {
797 int r;
798
799 assert(reply);
800 assert(c);
801
802 if (!c->path)
803 return 0;
804
805 r = sd_bus_message_open_container(reply, 'r', "sasbttttuii");
806 if (r < 0)
807 return r;
808
809 r = sd_bus_message_append(reply, "s", c->path);
810 if (r < 0)
811 return r;
812
813 r = sd_bus_message_append_strv(reply, c->argv);
814 if (r < 0)
815 return r;
816
817 r = sd_bus_message_append(reply, "bttttuii",
818 !!(c->flags & EXEC_COMMAND_IGNORE_FAILURE),
819 c->exec_status.start_timestamp.realtime,
820 c->exec_status.start_timestamp.monotonic,
821 c->exec_status.exit_timestamp.realtime,
822 c->exec_status.exit_timestamp.monotonic,
823 (uint32_t) c->exec_status.pid,
824 (int32_t) c->exec_status.code,
825 (int32_t) c->exec_status.status);
826 if (r < 0)
827 return r;
828
829 return sd_bus_message_close_container(reply);
830 }
831
832 static int append_exec_ex_command(sd_bus_message *reply, ExecCommand *c) {
833 _cleanup_strv_free_ char **ex_opts = NULL;
834 int r;
835
836 assert(reply);
837 assert(c);
838
839 if (!c->path)
840 return 0;
841
842 r = sd_bus_message_open_container(reply, 'r', "sasasttttuii");
843 if (r < 0)
844 return r;
845
846 r = sd_bus_message_append(reply, "s", c->path);
847 if (r < 0)
848 return r;
849
850 r = sd_bus_message_append_strv(reply, c->argv);
851 if (r < 0)
852 return r;
853
854 r = exec_command_flags_to_strv(c->flags, &ex_opts);
855 if (r < 0)
856 return r;
857
858 r = sd_bus_message_append_strv(reply, ex_opts);
859 if (r < 0)
860 return r;
861
862 r = sd_bus_message_append(reply, "ttttuii",
863 c->exec_status.start_timestamp.realtime,
864 c->exec_status.start_timestamp.monotonic,
865 c->exec_status.exit_timestamp.realtime,
866 c->exec_status.exit_timestamp.monotonic,
867 (uint32_t) c->exec_status.pid,
868 (int32_t) c->exec_status.code,
869 (int32_t) c->exec_status.status);
870 if (r < 0)
871 return r;
872
873 return sd_bus_message_close_container(reply);
874 }
875
876 int bus_property_get_exec_command(
877 sd_bus *bus,
878 const char *path,
879 const char *interface,
880 const char *property,
881 sd_bus_message *reply,
882 void *userdata,
883 sd_bus_error *ret_error) {
884
885 ExecCommand *c = (ExecCommand*) userdata;
886 int r;
887
888 assert(bus);
889 assert(reply);
890
891 r = sd_bus_message_open_container(reply, 'a', "(sasbttttuii)");
892 if (r < 0)
893 return r;
894
895 r = append_exec_command(reply, c);
896 if (r < 0)
897 return r;
898
899 return sd_bus_message_close_container(reply);
900 }
901
902 int bus_property_get_exec_command_list(
903 sd_bus *bus,
904 const char *path,
905 const char *interface,
906 const char *property,
907 sd_bus_message *reply,
908 void *userdata,
909 sd_bus_error *ret_error) {
910
911 ExecCommand *c = *(ExecCommand**) userdata;
912 int r;
913
914 assert(bus);
915 assert(reply);
916
917 r = sd_bus_message_open_container(reply, 'a', "(sasbttttuii)");
918 if (r < 0)
919 return r;
920
921 LIST_FOREACH(command, c, c) {
922 r = append_exec_command(reply, c);
923 if (r < 0)
924 return r;
925 }
926
927 return sd_bus_message_close_container(reply);
928 }
929
930 int bus_property_get_exec_ex_command_list(
931 sd_bus *bus,
932 const char *path,
933 const char *interface,
934 const char *property,
935 sd_bus_message *reply,
936 void *userdata,
937 sd_bus_error *ret_error) {
938
939 ExecCommand *c, *exec_command = *(ExecCommand**) userdata;
940 int r;
941
942 assert(bus);
943 assert(reply);
944
945 r = sd_bus_message_open_container(reply, 'a', "(sasasttttuii)");
946 if (r < 0)
947 return r;
948
949 LIST_FOREACH(command, c, exec_command) {
950 r = append_exec_ex_command(reply, c);
951 if (r < 0)
952 return r;
953 }
954
955 return sd_bus_message_close_container(reply);
956 }
957
958 static char *exec_command_flags_to_exec_chars(ExecCommandFlags flags) {
959 char *res = NULL;
960
961 asprintf(&res, "%s%s%s%s%s",
962 FLAGS_SET(flags, EXEC_COMMAND_IGNORE_FAILURE) ? "-" : "",
963 FLAGS_SET(flags, EXEC_COMMAND_NO_ENV_EXPAND) ? ":" : "",
964 FLAGS_SET(flags, EXEC_COMMAND_FULLY_PRIVILEGED) ? "+" : "",
965 FLAGS_SET(flags, EXEC_COMMAND_NO_SETUID) ? "!" : "",
966 FLAGS_SET(flags, EXEC_COMMAND_AMBIENT_MAGIC) ? "!!" : "");
967
968 return res;
969 }
970
971 int bus_set_transient_exec_command(
972 Unit *u,
973 const char *name,
974 ExecCommand **exec_command,
975 sd_bus_message *message,
976 UnitWriteFlags flags,
977 sd_bus_error *error) {
978 bool is_ex_prop = endswith(name, "Ex");
979 unsigned n = 0;
980 int r;
981
982 r = sd_bus_message_enter_container(message, 'a', is_ex_prop ? "(sasas)" : "(sasb)");
983 if (r < 0)
984 return r;
985
986 while ((r = sd_bus_message_enter_container(message, 'r', is_ex_prop ? "sasas" : "sasb")) > 0) {
987 _cleanup_strv_free_ char **argv = NULL, **ex_opts = NULL;
988 const char *path;
989 int b;
990
991 r = sd_bus_message_read(message, "s", &path);
992 if (r < 0)
993 return r;
994
995 if (!path_is_absolute(path))
996 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not absolute.", path);
997
998 r = sd_bus_message_read_strv(message, &argv);
999 if (r < 0)
1000 return r;
1001
1002 r = is_ex_prop ? sd_bus_message_read_strv(message, &ex_opts) : sd_bus_message_read(message, "b", &b);
1003 if (r < 0)
1004 return r;
1005
1006 r = sd_bus_message_exit_container(message);
1007 if (r < 0)
1008 return r;
1009
1010 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1011 ExecCommand *c;
1012
1013 c = new0(ExecCommand, 1);
1014 if (!c)
1015 return -ENOMEM;
1016
1017 c->path = strdup(path);
1018 if (!c->path) {
1019 free(c);
1020 return -ENOMEM;
1021 }
1022
1023 c->argv = TAKE_PTR(argv);
1024
1025 if (is_ex_prop) {
1026 r = exec_command_flags_from_strv(ex_opts, &c->flags);
1027 if (r < 0)
1028 return r;
1029 } else
1030 c->flags = b ? EXEC_COMMAND_IGNORE_FAILURE : 0;
1031
1032 path_simplify(c->path, false);
1033 exec_command_append_list(exec_command, c);
1034 }
1035
1036 n++;
1037 }
1038 if (r < 0)
1039 return r;
1040
1041 r = sd_bus_message_exit_container(message);
1042 if (r < 0)
1043 return r;
1044
1045 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1046 _cleanup_free_ char *buf = NULL;
1047 _cleanup_fclose_ FILE *f = NULL;
1048 ExecCommand *c;
1049 size_t size = 0;
1050
1051 if (n == 0)
1052 *exec_command = exec_command_free_list(*exec_command);
1053
1054 f = open_memstream_unlocked(&buf, &size);
1055 if (!f)
1056 return -ENOMEM;
1057
1058 fputs("ExecStart=\n", f);
1059
1060 LIST_FOREACH(command, c, *exec_command) {
1061 _cleanup_free_ char *a = NULL, *t = NULL, *exec_chars = NULL;
1062 const char *p;
1063
1064 p = unit_escape_setting(c->path, UNIT_ESCAPE_C|UNIT_ESCAPE_SPECIFIERS, &t);
1065 if (!p)
1066 return -ENOMEM;
1067
1068 a = unit_concat_strv(c->argv, UNIT_ESCAPE_C|UNIT_ESCAPE_SPECIFIERS);
1069 if (!a)
1070 return -ENOMEM;
1071
1072 exec_chars = exec_command_flags_to_exec_chars(c->flags);
1073 if (!exec_chars)
1074 return -ENOMEM;
1075
1076 fprintf(f, "%s=%s@%s %s\n", name, exec_chars, p, a);
1077 }
1078
1079 r = fflush_and_check(f);
1080 if (r < 0)
1081 return r;
1082
1083 unit_write_setting(u, flags, name, buf);
1084 }
1085
1086 return 1;
1087 }
1088
1089 static int parse_personality(const char *s, unsigned long *p) {
1090 unsigned long v;
1091
1092 assert(p);
1093
1094 v = personality_from_string(s);
1095 if (v == PERSONALITY_INVALID)
1096 return -EINVAL;
1097
1098 *p = v;
1099 return 0;
1100 }
1101
1102 static const char* mount_propagation_flags_to_string_with_check(unsigned long n) {
1103 if (!IN_SET(n, 0, MS_SHARED, MS_PRIVATE, MS_SLAVE))
1104 return NULL;
1105
1106 return mount_propagation_flags_to_string(n);
1107 }
1108
1109 static BUS_DEFINE_SET_TRANSIENT(nsec, "t", uint64_t, nsec_t, NSEC_FMT);
1110 static BUS_DEFINE_SET_TRANSIENT_IS_VALID(log_level, "i", int32_t, int, "%" PRIi32, log_level_is_valid);
1111 #if HAVE_SECCOMP
1112 static BUS_DEFINE_SET_TRANSIENT_IS_VALID(errno, "i", int32_t, int, "%" PRIi32, errno_is_valid);
1113 #endif
1114 static BUS_DEFINE_SET_TRANSIENT_PARSE(std_input, ExecInput, exec_input_from_string);
1115 static BUS_DEFINE_SET_TRANSIENT_PARSE(std_output, ExecOutput, exec_output_from_string);
1116 static BUS_DEFINE_SET_TRANSIENT_PARSE(utmp_mode, ExecUtmpMode, exec_utmp_mode_from_string);
1117 static BUS_DEFINE_SET_TRANSIENT_PARSE(protect_system, ProtectSystem, protect_system_from_string);
1118 static BUS_DEFINE_SET_TRANSIENT_PARSE(protect_home, ProtectHome, protect_home_from_string);
1119 static BUS_DEFINE_SET_TRANSIENT_PARSE(keyring_mode, ExecKeyringMode, exec_keyring_mode_from_string);
1120 static BUS_DEFINE_SET_TRANSIENT_PARSE(preserve_mode, ExecPreserveMode, exec_preserve_mode_from_string);
1121 static BUS_DEFINE_SET_TRANSIENT_PARSE_PTR(personality, unsigned long, parse_personality);
1122 static BUS_DEFINE_SET_TRANSIENT_TO_STRING_ALLOC(secure_bits, "i", int32_t, int, "%" PRIi32, secure_bits_to_string_alloc_with_check);
1123 static BUS_DEFINE_SET_TRANSIENT_TO_STRING_ALLOC(capability, "t", uint64_t, uint64_t, "%" PRIu64, capability_set_to_string_alloc);
1124 static BUS_DEFINE_SET_TRANSIENT_TO_STRING_ALLOC(namespace_flag, "t", uint64_t, unsigned long, "%" PRIu64, namespace_flags_to_string);
1125 static BUS_DEFINE_SET_TRANSIENT_TO_STRING(mount_flags, "t", uint64_t, unsigned long, "%" PRIu64, mount_propagation_flags_to_string_with_check);
1126
1127 int bus_exec_context_set_transient_property(
1128 Unit *u,
1129 ExecContext *c,
1130 const char *name,
1131 sd_bus_message *message,
1132 UnitWriteFlags flags,
1133 sd_bus_error *error) {
1134
1135 const char *suffix;
1136 int r;
1137
1138 assert(u);
1139 assert(c);
1140 assert(name);
1141 assert(message);
1142
1143 flags |= UNIT_PRIVATE;
1144
1145 if (streq(name, "User"))
1146 return bus_set_transient_user(u, name, &c->user, message, flags, error);
1147
1148 if (streq(name, "Group"))
1149 return bus_set_transient_user(u, name, &c->group, message, flags, error);
1150
1151 if (streq(name, "TTYPath"))
1152 return bus_set_transient_path(u, name, &c->tty_path, message, flags, error);
1153
1154 if (streq(name, "RootImage"))
1155 return bus_set_transient_path(u, name, &c->root_image, message, flags, error);
1156
1157 if (streq(name, "RootDirectory"))
1158 return bus_set_transient_path(u, name, &c->root_directory, message, flags, error);
1159
1160 if (streq(name, "SyslogIdentifier"))
1161 return bus_set_transient_string(u, name, &c->syslog_identifier, message, flags, error);
1162
1163 if (streq(name, "LogLevelMax"))
1164 return bus_set_transient_log_level(u, name, &c->log_level_max, message, flags, error);
1165
1166 if (streq(name, "LogRateLimitIntervalUSec"))
1167 return bus_set_transient_usec(u, name, &c->log_rate_limit_interval_usec, message, flags, error);
1168
1169 if (streq(name, "LogRateLimitBurst"))
1170 return bus_set_transient_unsigned(u, name, &c->log_rate_limit_burst, message, flags, error);
1171
1172 if (streq(name, "Personality"))
1173 return bus_set_transient_personality(u, name, &c->personality, message, flags, error);
1174
1175 if (streq(name, "StandardInput"))
1176 return bus_set_transient_std_input(u, name, &c->std_input, message, flags, error);
1177
1178 if (streq(name, "StandardOutput"))
1179 return bus_set_transient_std_output(u, name, &c->std_output, message, flags, error);
1180
1181 if (streq(name, "StandardError"))
1182 return bus_set_transient_std_output(u, name, &c->std_error, message, flags, error);
1183
1184 if (streq(name, "IgnoreSIGPIPE"))
1185 return bus_set_transient_bool(u, name, &c->ignore_sigpipe, message, flags, error);
1186
1187 if (streq(name, "TTYVHangup"))
1188 return bus_set_transient_bool(u, name, &c->tty_vhangup, message, flags, error);
1189
1190 if (streq(name, "TTYReset"))
1191 return bus_set_transient_bool(u, name, &c->tty_reset, message, flags, error);
1192
1193 if (streq(name, "TTYVTDisallocate"))
1194 return bus_set_transient_bool(u, name, &c->tty_vt_disallocate, message, flags, error);
1195
1196 if (streq(name, "PrivateTmp"))
1197 return bus_set_transient_bool(u, name, &c->private_tmp, message, flags, error);
1198
1199 if (streq(name, "PrivateDevices"))
1200 return bus_set_transient_bool(u, name, &c->private_devices, message, flags, error);
1201
1202 if (streq(name, "PrivateMounts"))
1203 return bus_set_transient_bool(u, name, &c->private_mounts, message, flags, error);
1204
1205 if (streq(name, "PrivateNetwork"))
1206 return bus_set_transient_bool(u, name, &c->private_network, message, flags, error);
1207
1208 if (streq(name, "PrivateUsers"))
1209 return bus_set_transient_bool(u, name, &c->private_users, message, flags, error);
1210
1211 if (streq(name, "NoNewPrivileges"))
1212 return bus_set_transient_bool(u, name, &c->no_new_privileges, message, flags, error);
1213
1214 if (streq(name, "SyslogLevelPrefix"))
1215 return bus_set_transient_bool(u, name, &c->syslog_level_prefix, message, flags, error);
1216
1217 if (streq(name, "MemoryDenyWriteExecute"))
1218 return bus_set_transient_bool(u, name, &c->memory_deny_write_execute, message, flags, error);
1219
1220 if (streq(name, "RestrictRealtime"))
1221 return bus_set_transient_bool(u, name, &c->restrict_realtime, message, flags, error);
1222
1223 if (streq(name, "RestrictSUIDSGID"))
1224 return bus_set_transient_bool(u, name, &c->restrict_suid_sgid, message, flags, error);
1225
1226 if (streq(name, "DynamicUser"))
1227 return bus_set_transient_bool(u, name, &c->dynamic_user, message, flags, error);
1228
1229 if (streq(name, "RemoveIPC"))
1230 return bus_set_transient_bool(u, name, &c->remove_ipc, message, flags, error);
1231
1232 if (streq(name, "ProtectKernelTunables"))
1233 return bus_set_transient_bool(u, name, &c->protect_kernel_tunables, message, flags, error);
1234
1235 if (streq(name, "ProtectKernelModules"))
1236 return bus_set_transient_bool(u, name, &c->protect_kernel_modules, message, flags, error);
1237
1238 if (streq(name, "ProtectControlGroups"))
1239 return bus_set_transient_bool(u, name, &c->protect_control_groups, message, flags, error);
1240
1241 if (streq(name, "MountAPIVFS"))
1242 return bus_set_transient_bool(u, name, &c->mount_apivfs, message, flags, error);
1243
1244 if (streq(name, "CPUSchedulingResetOnFork"))
1245 return bus_set_transient_bool(u, name, &c->cpu_sched_reset_on_fork, message, flags, error);
1246
1247 if (streq(name, "NonBlocking"))
1248 return bus_set_transient_bool(u, name, &c->non_blocking, message, flags, error);
1249
1250 if (streq(name, "LockPersonality"))
1251 return bus_set_transient_bool(u, name, &c->lock_personality, message, flags, error);
1252
1253 if (streq(name, "ProtectHostname"))
1254 return bus_set_transient_bool(u, name, &c->protect_hostname, message, flags, error);
1255
1256 if (streq(name, "UtmpIdentifier"))
1257 return bus_set_transient_string(u, name, &c->utmp_id, message, flags, error);
1258
1259 if (streq(name, "UtmpMode"))
1260 return bus_set_transient_utmp_mode(u, name, &c->utmp_mode, message, flags, error);
1261
1262 if (streq(name, "PAMName"))
1263 return bus_set_transient_string(u, name, &c->pam_name, message, flags, error);
1264
1265 if (streq(name, "TimerSlackNSec"))
1266 return bus_set_transient_nsec(u, name, &c->timer_slack_nsec, message, flags, error);
1267
1268 if (streq(name, "ProtectSystem"))
1269 return bus_set_transient_protect_system(u, name, &c->protect_system, message, flags, error);
1270
1271 if (streq(name, "ProtectHome"))
1272 return bus_set_transient_protect_home(u, name, &c->protect_home, message, flags, error);
1273
1274 if (streq(name, "KeyringMode"))
1275 return bus_set_transient_keyring_mode(u, name, &c->keyring_mode, message, flags, error);
1276
1277 if (streq(name, "RuntimeDirectoryPreserve"))
1278 return bus_set_transient_preserve_mode(u, name, &c->runtime_directory_preserve_mode, message, flags, error);
1279
1280 if (streq(name, "UMask"))
1281 return bus_set_transient_mode_t(u, name, &c->umask, message, flags, error);
1282
1283 if (streq(name, "RuntimeDirectoryMode"))
1284 return bus_set_transient_mode_t(u, name, &c->directories[EXEC_DIRECTORY_RUNTIME].mode, message, flags, error);
1285
1286 if (streq(name, "StateDirectoryMode"))
1287 return bus_set_transient_mode_t(u, name, &c->directories[EXEC_DIRECTORY_STATE].mode, message, flags, error);
1288
1289 if (streq(name, "CacheDirectoryMode"))
1290 return bus_set_transient_mode_t(u, name, &c->directories[EXEC_DIRECTORY_CACHE].mode, message, flags, error);
1291
1292 if (streq(name, "LogsDirectoryMode"))
1293 return bus_set_transient_mode_t(u, name, &c->directories[EXEC_DIRECTORY_LOGS].mode, message, flags, error);
1294
1295 if (streq(name, "ConfigurationDirectoryMode"))
1296 return bus_set_transient_mode_t(u, name, &c->directories[EXEC_DIRECTORY_CONFIGURATION].mode, message, flags, error);
1297
1298 if (streq(name, "SELinuxContext"))
1299 return bus_set_transient_string(u, name, &c->selinux_context, message, flags, error);
1300
1301 if (streq(name, "SecureBits"))
1302 return bus_set_transient_secure_bits(u, name, &c->secure_bits, message, flags, error);
1303
1304 if (streq(name, "CapabilityBoundingSet"))
1305 return bus_set_transient_capability(u, name, &c->capability_bounding_set, message, flags, error);
1306
1307 if (streq(name, "AmbientCapabilities"))
1308 return bus_set_transient_capability(u, name, &c->capability_ambient_set, message, flags, error);
1309
1310 if (streq(name, "RestrictNamespaces"))
1311 return bus_set_transient_namespace_flag(u, name, &c->restrict_namespaces, message, flags, error);
1312
1313 if (streq(name, "MountFlags"))
1314 return bus_set_transient_mount_flags(u, name, &c->mount_flags, message, flags, error);
1315
1316 if (streq(name, "NetworkNamespacePath"))
1317 return bus_set_transient_path(u, name, &c->network_namespace_path, message, flags, error);
1318
1319 if (streq(name, "SupplementaryGroups")) {
1320 _cleanup_strv_free_ char **l = NULL;
1321 char **p;
1322
1323 r = sd_bus_message_read_strv(message, &l);
1324 if (r < 0)
1325 return r;
1326
1327 STRV_FOREACH(p, l) {
1328 if (!isempty(*p) && !valid_user_group_name_or_id(*p))
1329 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid supplementary group names");
1330 }
1331
1332 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1333 if (strv_isempty(l)) {
1334 c->supplementary_groups = strv_free(c->supplementary_groups);
1335 unit_write_settingf(u, flags, name, "%s=", name);
1336 } else {
1337 _cleanup_free_ char *joined = NULL;
1338
1339 r = strv_extend_strv(&c->supplementary_groups, l, true);
1340 if (r < 0)
1341 return -ENOMEM;
1342
1343 joined = strv_join(c->supplementary_groups, " ");
1344 if (!joined)
1345 return -ENOMEM;
1346
1347 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "%s=%s", name, joined);
1348 }
1349 }
1350
1351 return 1;
1352
1353 } else if (streq(name, "SyslogLevel")) {
1354 int32_t level;
1355
1356 r = sd_bus_message_read(message, "i", &level);
1357 if (r < 0)
1358 return r;
1359
1360 if (!log_level_is_valid(level))
1361 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Log level value out of range");
1362
1363 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1364 c->syslog_priority = (c->syslog_priority & LOG_FACMASK) | level;
1365 unit_write_settingf(u, flags, name, "SyslogLevel=%i", level);
1366 }
1367
1368 return 1;
1369
1370 } else if (streq(name, "SyslogFacility")) {
1371 int32_t facility;
1372
1373 r = sd_bus_message_read(message, "i", &facility);
1374 if (r < 0)
1375 return r;
1376
1377 if (!log_facility_unshifted_is_valid(facility))
1378 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Log facility value out of range");
1379
1380 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1381 c->syslog_priority = (facility << 3) | LOG_PRI(c->syslog_priority);
1382 unit_write_settingf(u, flags, name, "SyslogFacility=%i", facility);
1383 }
1384
1385 return 1;
1386
1387 } else if (streq(name, "LogExtraFields")) {
1388 size_t n = 0;
1389
1390 r = sd_bus_message_enter_container(message, 'a', "ay");
1391 if (r < 0)
1392 return r;
1393
1394 for (;;) {
1395 _cleanup_free_ void *copy = NULL;
1396 struct iovec *t;
1397 const char *eq;
1398 const void *p;
1399 size_t sz;
1400
1401 /* Note that we expect a byte array for each field, instead of a string. That's because on the
1402 * lower-level journal fields can actually contain binary data and are not restricted to text,
1403 * and we should not "lose precision" in our types on the way. That said, I am pretty sure
1404 * actually encoding binary data as unit metadata is not a good idea. Hence we actually refuse
1405 * any actual binary data, and only accept UTF-8. This allows us to eventually lift this
1406 * limitation, should a good, valid usecase arise. */
1407
1408 r = sd_bus_message_read_array(message, 'y', &p, &sz);
1409 if (r < 0)
1410 return r;
1411 if (r == 0)
1412 break;
1413
1414 if (memchr(p, 0, sz))
1415 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Journal field contains zero byte");
1416
1417 eq = memchr(p, '=', sz);
1418 if (!eq)
1419 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Journal field contains no '=' character");
1420 if (!journal_field_valid(p, eq - (const char*) p, false))
1421 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Journal field invalid");
1422
1423 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1424 t = reallocarray(c->log_extra_fields, c->n_log_extra_fields+1, sizeof(struct iovec));
1425 if (!t)
1426 return -ENOMEM;
1427 c->log_extra_fields = t;
1428 }
1429
1430 copy = malloc(sz + 1);
1431 if (!copy)
1432 return -ENOMEM;
1433
1434 memcpy(copy, p, sz);
1435 ((uint8_t*) copy)[sz] = 0;
1436
1437 if (!utf8_is_valid(copy))
1438 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Journal field is not valid UTF-8");
1439
1440 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1441 c->log_extra_fields[c->n_log_extra_fields++] = IOVEC_MAKE(copy, sz);
1442 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS|UNIT_ESCAPE_C, name, "LogExtraFields=%s", (char*) copy);
1443
1444 copy = NULL;
1445 }
1446
1447 n++;
1448 }
1449
1450 r = sd_bus_message_exit_container(message);
1451 if (r < 0)
1452 return r;
1453
1454 if (!UNIT_WRITE_FLAGS_NOOP(flags) && n == 0) {
1455 exec_context_free_log_extra_fields(c);
1456 unit_write_setting(u, flags, name, "LogExtraFields=");
1457 }
1458
1459 return 1;
1460 }
1461
1462 #if HAVE_SECCOMP
1463
1464 if (streq(name, "SystemCallErrorNumber"))
1465 return bus_set_transient_errno(u, name, &c->syscall_errno, message, flags, error);
1466
1467 if (streq(name, "SystemCallFilter")) {
1468 int whitelist;
1469 _cleanup_strv_free_ char **l = NULL;
1470
1471 r = sd_bus_message_enter_container(message, 'r', "bas");
1472 if (r < 0)
1473 return r;
1474
1475 r = sd_bus_message_read(message, "b", &whitelist);
1476 if (r < 0)
1477 return r;
1478
1479 r = sd_bus_message_read_strv(message, &l);
1480 if (r < 0)
1481 return r;
1482
1483 r = sd_bus_message_exit_container(message);
1484 if (r < 0)
1485 return r;
1486
1487 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1488 _cleanup_free_ char *joined = NULL;
1489 SeccompParseFlags invert_flag = whitelist ? 0 : SECCOMP_PARSE_INVERT;
1490 char **s;
1491
1492 if (strv_isempty(l)) {
1493 c->syscall_whitelist = false;
1494 c->syscall_filter = hashmap_free(c->syscall_filter);
1495
1496 unit_write_settingf(u, flags, name, "SystemCallFilter=");
1497 return 1;
1498 }
1499
1500 if (!c->syscall_filter) {
1501 c->syscall_filter = hashmap_new(NULL);
1502 if (!c->syscall_filter)
1503 return log_oom();
1504
1505 c->syscall_whitelist = whitelist;
1506
1507 if (c->syscall_whitelist) {
1508 r = seccomp_parse_syscall_filter("@default",
1509 -1,
1510 c->syscall_filter,
1511 SECCOMP_PARSE_WHITELIST | invert_flag,
1512 u->id,
1513 NULL, 0);
1514 if (r < 0)
1515 return r;
1516 }
1517 }
1518
1519 STRV_FOREACH(s, l) {
1520 _cleanup_free_ char *n = NULL;
1521 int e;
1522
1523 r = parse_syscall_and_errno(*s, &n, &e);
1524 if (r < 0)
1525 return r;
1526
1527 r = seccomp_parse_syscall_filter(n,
1528 e,
1529 c->syscall_filter,
1530 (c->syscall_whitelist ? SECCOMP_PARSE_WHITELIST : 0) | invert_flag,
1531 u->id,
1532 NULL, 0);
1533 if (r < 0)
1534 return r;
1535 }
1536
1537 joined = strv_join(l, " ");
1538 if (!joined)
1539 return -ENOMEM;
1540
1541 unit_write_settingf(u, flags, name, "SystemCallFilter=%s%s", whitelist ? "" : "~", joined);
1542 }
1543
1544 return 1;
1545
1546 } else if (streq(name, "SystemCallArchitectures")) {
1547 _cleanup_strv_free_ char **l = NULL;
1548
1549 r = sd_bus_message_read_strv(message, &l);
1550 if (r < 0)
1551 return r;
1552
1553 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1554 _cleanup_free_ char *joined = NULL;
1555
1556 if (strv_isempty(l))
1557 c->syscall_archs = set_free(c->syscall_archs);
1558 else {
1559 char **s;
1560
1561 r = set_ensure_allocated(&c->syscall_archs, NULL);
1562 if (r < 0)
1563 return r;
1564
1565 STRV_FOREACH(s, l) {
1566 uint32_t a;
1567
1568 r = seccomp_arch_from_string(*s, &a);
1569 if (r < 0)
1570 return r;
1571
1572 r = set_put(c->syscall_archs, UINT32_TO_PTR(a + 1));
1573 if (r < 0)
1574 return r;
1575 }
1576
1577 }
1578
1579 joined = strv_join(l, " ");
1580 if (!joined)
1581 return -ENOMEM;
1582
1583 unit_write_settingf(u, flags, name, "%s=%s", name, joined);
1584 }
1585
1586 return 1;
1587
1588 } else if (streq(name, "RestrictAddressFamilies")) {
1589 int whitelist;
1590 _cleanup_strv_free_ char **l = NULL;
1591
1592 r = sd_bus_message_enter_container(message, 'r', "bas");
1593 if (r < 0)
1594 return r;
1595
1596 r = sd_bus_message_read(message, "b", &whitelist);
1597 if (r < 0)
1598 return r;
1599
1600 r = sd_bus_message_read_strv(message, &l);
1601 if (r < 0)
1602 return r;
1603
1604 r = sd_bus_message_exit_container(message);
1605 if (r < 0)
1606 return r;
1607
1608 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1609 _cleanup_free_ char *joined = NULL;
1610 char **s;
1611
1612 if (strv_isempty(l)) {
1613 c->address_families_whitelist = false;
1614 c->address_families = set_free(c->address_families);
1615
1616 unit_write_settingf(u, flags, name, "RestrictAddressFamilies=");
1617 return 1;
1618 }
1619
1620 if (!c->address_families) {
1621 c->address_families = set_new(NULL);
1622 if (!c->address_families)
1623 return log_oom();
1624
1625 c->address_families_whitelist = whitelist;
1626 }
1627
1628 STRV_FOREACH(s, l) {
1629 int af;
1630
1631 af = af_from_name(*s);
1632 if (af < 0)
1633 return af;
1634
1635 if (whitelist == c->address_families_whitelist) {
1636 r = set_put(c->address_families, INT_TO_PTR(af));
1637 if (r < 0)
1638 return r;
1639 } else
1640 (void) set_remove(c->address_families, INT_TO_PTR(af));
1641 }
1642
1643 joined = strv_join(l, " ");
1644 if (!joined)
1645 return -ENOMEM;
1646
1647 unit_write_settingf(u, flags, name, "RestrictAddressFamilies=%s%s", whitelist ? "" : "~", joined);
1648 }
1649
1650 return 1;
1651 }
1652 #endif
1653 if (streq(name, "CPUAffinity")) {
1654 const void *a;
1655 size_t n;
1656 _cleanup_(cpu_set_reset) CPUSet set = {};
1657
1658 r = sd_bus_message_read_array(message, 'y', &a, &n);
1659 if (r < 0)
1660 return r;
1661
1662 r = cpu_set_from_dbus(a, n, &set);
1663 if (r < 0)
1664 return r;
1665
1666 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1667 if (n == 0) {
1668 cpu_set_reset(&c->cpu_set);
1669 unit_write_settingf(u, flags, name, "%s=", name);
1670 } else {
1671 _cleanup_free_ char *str = NULL;
1672
1673 str = cpu_set_to_string(&set);
1674 if (!str)
1675 return -ENOMEM;
1676
1677 /* We forego any optimizations here, and always create the structure using
1678 * cpu_set_add_all(), because we don't want to care if the existing size we
1679 * got over dbus is appropriate. */
1680 r = cpu_set_add_all(&c->cpu_set, &set);
1681 if (r < 0)
1682 return r;
1683
1684 unit_write_settingf(u, flags, name, "%s=%s", name, str);
1685 }
1686 }
1687
1688 return 1;
1689
1690 } else if (streq(name, "Nice")) {
1691 int32_t q;
1692
1693 r = sd_bus_message_read(message, "i", &q);
1694 if (r < 0)
1695 return r;
1696
1697 if (!nice_is_valid(q))
1698 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid Nice value: %i", q);
1699
1700 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1701 c->nice = q;
1702 c->nice_set = true;
1703
1704 unit_write_settingf(u, flags, name, "Nice=%i", q);
1705 }
1706
1707 return 1;
1708
1709 } else if (streq(name, "CPUSchedulingPolicy")) {
1710 int32_t q;
1711
1712 r = sd_bus_message_read(message, "i", &q);
1713 if (r < 0)
1714 return r;
1715
1716 if (!sched_policy_is_valid(q))
1717 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid CPU scheduling policy: %i", q);
1718
1719 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1720 _cleanup_free_ char *s = NULL;
1721
1722 r = sched_policy_to_string_alloc(q, &s);
1723 if (r < 0)
1724 return r;
1725
1726 c->cpu_sched_policy = q;
1727 c->cpu_sched_priority = CLAMP(c->cpu_sched_priority, sched_get_priority_min(q), sched_get_priority_max(q));
1728 c->cpu_sched_set = true;
1729
1730 unit_write_settingf(u, flags, name, "CPUSchedulingPolicy=%s", s);
1731 }
1732
1733 return 1;
1734
1735 } else if (streq(name, "CPUSchedulingPriority")) {
1736 int32_t p, min, max;
1737
1738 r = sd_bus_message_read(message, "i", &p);
1739 if (r < 0)
1740 return r;
1741
1742 min = sched_get_priority_min(c->cpu_sched_policy);
1743 max = sched_get_priority_max(c->cpu_sched_policy);
1744 if (p < min || p > max)
1745 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid CPU scheduling priority: %i", p);
1746
1747 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1748 c->cpu_sched_priority = p;
1749 c->cpu_sched_set = true;
1750
1751 unit_write_settingf(u, flags, name, "CPUSchedulingPriority=%i", p);
1752 }
1753
1754 return 1;
1755
1756 } else if (streq(name, "IOSchedulingClass")) {
1757 int32_t q;
1758
1759 r = sd_bus_message_read(message, "i", &q);
1760 if (r < 0)
1761 return r;
1762
1763 if (!ioprio_class_is_valid(q))
1764 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid IO scheduling class: %i", q);
1765
1766 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1767 _cleanup_free_ char *s = NULL;
1768
1769 r = ioprio_class_to_string_alloc(q, &s);
1770 if (r < 0)
1771 return r;
1772
1773 c->ioprio = IOPRIO_PRIO_VALUE(q, IOPRIO_PRIO_DATA(c->ioprio));
1774 c->ioprio_set = true;
1775
1776 unit_write_settingf(u, flags, name, "IOSchedulingClass=%s", s);
1777 }
1778
1779 return 1;
1780
1781 } else if (streq(name, "IOSchedulingPriority")) {
1782 int32_t p;
1783
1784 r = sd_bus_message_read(message, "i", &p);
1785 if (r < 0)
1786 return r;
1787
1788 if (!ioprio_priority_is_valid(p))
1789 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid IO scheduling priority: %i", p);
1790
1791 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1792 c->ioprio = IOPRIO_PRIO_VALUE(IOPRIO_PRIO_CLASS(c->ioprio), p);
1793 c->ioprio_set = true;
1794
1795 unit_write_settingf(u, flags, name, "IOSchedulingPriority=%i", p);
1796 }
1797
1798 return 1;
1799
1800 } else if (streq(name, "WorkingDirectory")) {
1801 const char *s;
1802 bool missing_ok;
1803
1804 r = sd_bus_message_read(message, "s", &s);
1805 if (r < 0)
1806 return r;
1807
1808 if (s[0] == '-') {
1809 missing_ok = true;
1810 s++;
1811 } else
1812 missing_ok = false;
1813
1814 if (!isempty(s) && !streq(s, "~") && !path_is_absolute(s))
1815 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "WorkingDirectory= expects an absolute path or '~'");
1816
1817 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1818 if (streq(s, "~")) {
1819 c->working_directory = mfree(c->working_directory);
1820 c->working_directory_home = true;
1821 } else {
1822 r = free_and_strdup(&c->working_directory, empty_to_null(s));
1823 if (r < 0)
1824 return r;
1825
1826 c->working_directory_home = false;
1827 }
1828
1829 c->working_directory_missing_ok = missing_ok;
1830 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "WorkingDirectory=%s%s", missing_ok ? "-" : "", s);
1831 }
1832
1833 return 1;
1834
1835 } else if (STR_IN_SET(name,
1836 "StandardInputFileDescriptorName", "StandardOutputFileDescriptorName", "StandardErrorFileDescriptorName")) {
1837 const char *s;
1838
1839 r = sd_bus_message_read(message, "s", &s);
1840 if (r < 0)
1841 return r;
1842
1843 if (!isempty(s) && !fdname_is_valid(s))
1844 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid file descriptor name");
1845
1846 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1847
1848 if (streq(name, "StandardInputFileDescriptorName")) {
1849 r = free_and_strdup(c->stdio_fdname + STDIN_FILENO, empty_to_null(s));
1850 if (r < 0)
1851 return r;
1852
1853 c->std_input = EXEC_INPUT_NAMED_FD;
1854 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "StandardInput=fd:%s", exec_context_fdname(c, STDIN_FILENO));
1855
1856 } else if (streq(name, "StandardOutputFileDescriptorName")) {
1857 r = free_and_strdup(c->stdio_fdname + STDOUT_FILENO, empty_to_null(s));
1858 if (r < 0)
1859 return r;
1860
1861 c->std_output = EXEC_OUTPUT_NAMED_FD;
1862 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "StandardOutput=fd:%s", exec_context_fdname(c, STDOUT_FILENO));
1863
1864 } else {
1865 assert(streq(name, "StandardErrorFileDescriptorName"));
1866
1867 r = free_and_strdup(&c->stdio_fdname[STDERR_FILENO], empty_to_null(s));
1868 if (r < 0)
1869 return r;
1870
1871 c->std_error = EXEC_OUTPUT_NAMED_FD;
1872 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "StandardError=fd:%s", exec_context_fdname(c, STDERR_FILENO));
1873 }
1874 }
1875
1876 return 1;
1877
1878 } else if (STR_IN_SET(name,
1879 "StandardInputFile",
1880 "StandardOutputFile", "StandardOutputFileToAppend",
1881 "StandardErrorFile", "StandardErrorFileToAppend")) {
1882 const char *s;
1883
1884 r = sd_bus_message_read(message, "s", &s);
1885 if (r < 0)
1886 return r;
1887
1888 if (!isempty(s)) {
1889 if (!path_is_absolute(s))
1890 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not absolute", s);
1891 if (!path_is_normalized(s))
1892 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not normalized", s);
1893 }
1894
1895 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1896
1897 if (streq(name, "StandardInputFile")) {
1898 r = free_and_strdup(&c->stdio_file[STDIN_FILENO], empty_to_null(s));
1899 if (r < 0)
1900 return r;
1901
1902 c->std_input = EXEC_INPUT_FILE;
1903 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "StandardInput=file:%s", s);
1904
1905 } else if (STR_IN_SET(name, "StandardOutputFile", "StandardOutputFileToAppend")) {
1906 r = free_and_strdup(&c->stdio_file[STDOUT_FILENO], empty_to_null(s));
1907 if (r < 0)
1908 return r;
1909
1910 if (streq(name, "StandardOutputFile")) {
1911 c->std_output = EXEC_OUTPUT_FILE;
1912 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "StandardOutput=file:%s", s);
1913 } else {
1914 assert(streq(name, "StandardOutputFileToAppend"));
1915 c->std_output = EXEC_OUTPUT_FILE_APPEND;
1916 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "StandardOutput=append:%s", s);
1917 }
1918 } else {
1919 assert(STR_IN_SET(name, "StandardErrorFile", "StandardErrorFileToAppend"));
1920
1921 r = free_and_strdup(&c->stdio_file[STDERR_FILENO], empty_to_null(s));
1922 if (r < 0)
1923 return r;
1924
1925 if (streq(name, "StandardErrorFile")) {
1926 c->std_error = EXEC_OUTPUT_FILE;
1927 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "StandardError=file:%s", s);
1928 } else {
1929 assert(streq(name, "StandardErrorFileToAppend"));
1930 c->std_error = EXEC_OUTPUT_FILE_APPEND;
1931 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "StandardError=append:%s", s);
1932 }
1933 }
1934 }
1935
1936 return 1;
1937
1938 } else if (streq(name, "StandardInputData")) {
1939 const void *p;
1940 size_t sz;
1941
1942 r = sd_bus_message_read_array(message, 'y', &p, &sz);
1943 if (r < 0)
1944 return r;
1945
1946 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1947 _cleanup_free_ char *encoded = NULL;
1948
1949 if (sz == 0) {
1950 c->stdin_data = mfree(c->stdin_data);
1951 c->stdin_data_size = 0;
1952
1953 unit_write_settingf(u, flags, name, "StandardInputData=");
1954 } else {
1955 void *q;
1956 ssize_t n;
1957
1958 if (c->stdin_data_size + sz < c->stdin_data_size || /* check for overflow */
1959 c->stdin_data_size + sz > EXEC_STDIN_DATA_MAX)
1960 return -E2BIG;
1961
1962 n = base64mem(p, sz, &encoded);
1963 if (n < 0)
1964 return (int) n;
1965
1966 q = realloc(c->stdin_data, c->stdin_data_size + sz);
1967 if (!q)
1968 return -ENOMEM;
1969
1970 memcpy((uint8_t*) q + c->stdin_data_size, p, sz);
1971
1972 c->stdin_data = q;
1973 c->stdin_data_size += sz;
1974
1975 unit_write_settingf(u, flags, name, "StandardInputData=%s", encoded);
1976 }
1977 }
1978
1979 return 1;
1980
1981 } else if (streq(name, "Environment")) {
1982
1983 _cleanup_strv_free_ char **l = NULL;
1984
1985 r = sd_bus_message_read_strv(message, &l);
1986 if (r < 0)
1987 return r;
1988
1989 if (!strv_env_is_valid(l))
1990 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid environment block.");
1991
1992 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
1993 if (strv_isempty(l)) {
1994 c->environment = strv_free(c->environment);
1995 unit_write_setting(u, flags, name, "Environment=");
1996 } else {
1997 _cleanup_free_ char *joined = NULL;
1998 char **e;
1999
2000 joined = unit_concat_strv(l, UNIT_ESCAPE_SPECIFIERS|UNIT_ESCAPE_C);
2001 if (!joined)
2002 return -ENOMEM;
2003
2004 e = strv_env_merge(2, c->environment, l);
2005 if (!e)
2006 return -ENOMEM;
2007
2008 strv_free_and_replace(c->environment, e);
2009 unit_write_settingf(u, flags, name, "Environment=%s", joined);
2010 }
2011 }
2012
2013 return 1;
2014
2015 } else if (streq(name, "UnsetEnvironment")) {
2016
2017 _cleanup_strv_free_ char **l = NULL;
2018
2019 r = sd_bus_message_read_strv(message, &l);
2020 if (r < 0)
2021 return r;
2022
2023 if (!strv_env_name_or_assignment_is_valid(l))
2024 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid UnsetEnvironment= list.");
2025
2026 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
2027 if (strv_isempty(l)) {
2028 c->unset_environment = strv_free(c->unset_environment);
2029 unit_write_setting(u, flags, name, "UnsetEnvironment=");
2030 } else {
2031 _cleanup_free_ char *joined = NULL;
2032 char **e;
2033
2034 joined = unit_concat_strv(l, UNIT_ESCAPE_SPECIFIERS|UNIT_ESCAPE_C);
2035 if (!joined)
2036 return -ENOMEM;
2037
2038 e = strv_env_merge(2, c->unset_environment, l);
2039 if (!e)
2040 return -ENOMEM;
2041
2042 strv_free_and_replace(c->unset_environment, e);
2043 unit_write_settingf(u, flags, name, "UnsetEnvironment=%s", joined);
2044 }
2045 }
2046
2047 return 1;
2048
2049 } else if (streq(name, "OOMScoreAdjust")) {
2050 int oa;
2051
2052 r = sd_bus_message_read(message, "i", &oa);
2053 if (r < 0)
2054 return r;
2055
2056 if (!oom_score_adjust_is_valid(oa))
2057 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "OOM score adjust value out of range");
2058
2059 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
2060 c->oom_score_adjust = oa;
2061 c->oom_score_adjust_set = true;
2062 unit_write_settingf(u, flags, name, "OOMScoreAdjust=%i", oa);
2063 }
2064
2065 return 1;
2066
2067 } else if (streq(name, "EnvironmentFiles")) {
2068
2069 _cleanup_free_ char *joined = NULL;
2070 _cleanup_fclose_ FILE *f = NULL;
2071 _cleanup_strv_free_ char **l = NULL;
2072 size_t size = 0;
2073 char **i;
2074
2075 r = sd_bus_message_enter_container(message, 'a', "(sb)");
2076 if (r < 0)
2077 return r;
2078
2079 f = open_memstream_unlocked(&joined, &size);
2080 if (!f)
2081 return -ENOMEM;
2082
2083 fputs("EnvironmentFile=\n", f);
2084
2085 STRV_FOREACH(i, c->environment_files) {
2086 _cleanup_free_ char *q = NULL;
2087
2088 q = specifier_escape(*i);
2089 if (!q)
2090 return -ENOMEM;
2091
2092 fprintf(f, "EnvironmentFile=%s\n", q);
2093 }
2094
2095 while ((r = sd_bus_message_enter_container(message, 'r', "sb")) > 0) {
2096 const char *path;
2097 int b;
2098
2099 r = sd_bus_message_read(message, "sb", &path, &b);
2100 if (r < 0)
2101 return r;
2102
2103 r = sd_bus_message_exit_container(message);
2104 if (r < 0)
2105 return r;
2106
2107 if (!path_is_absolute(path))
2108 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not absolute.", path);
2109
2110 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
2111 _cleanup_free_ char *q = NULL, *buf = NULL;
2112
2113 buf = strjoin(b ? "-" : "", path);
2114 if (!buf)
2115 return -ENOMEM;
2116
2117 q = specifier_escape(buf);
2118 if (!q)
2119 return -ENOMEM;
2120
2121 fprintf(f, "EnvironmentFile=%s\n", q);
2122
2123 r = strv_consume(&l, TAKE_PTR(buf));
2124 if (r < 0)
2125 return r;
2126 }
2127 }
2128 if (r < 0)
2129 return r;
2130
2131 r = sd_bus_message_exit_container(message);
2132 if (r < 0)
2133 return r;
2134
2135 r = fflush_and_check(f);
2136 if (r < 0)
2137 return r;
2138
2139 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
2140 if (strv_isempty(l)) {
2141 c->environment_files = strv_free(c->environment_files);
2142 unit_write_setting(u, flags, name, "EnvironmentFile=");
2143 } else {
2144 r = strv_extend_strv(&c->environment_files, l, true);
2145 if (r < 0)
2146 return r;
2147
2148 unit_write_setting(u, flags, name, joined);
2149 }
2150 }
2151
2152 return 1;
2153
2154 } else if (streq(name, "PassEnvironment")) {
2155
2156 _cleanup_strv_free_ char **l = NULL;
2157
2158 r = sd_bus_message_read_strv(message, &l);
2159 if (r < 0)
2160 return r;
2161
2162 if (!strv_env_name_is_valid(l))
2163 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid PassEnvironment= block.");
2164
2165 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
2166 if (strv_isempty(l)) {
2167 c->pass_environment = strv_free(c->pass_environment);
2168 unit_write_setting(u, flags, name, "PassEnvironment=");
2169 } else {
2170 _cleanup_free_ char *joined = NULL;
2171
2172 r = strv_extend_strv(&c->pass_environment, l, true);
2173 if (r < 0)
2174 return r;
2175
2176 /* We write just the new settings out to file, with unresolved specifiers. */
2177 joined = unit_concat_strv(l, UNIT_ESCAPE_SPECIFIERS);
2178 if (!joined)
2179 return -ENOMEM;
2180
2181 unit_write_settingf(u, flags, name, "PassEnvironment=%s", joined);
2182 }
2183 }
2184
2185 return 1;
2186
2187 } else if (STR_IN_SET(name, "ReadWriteDirectories", "ReadOnlyDirectories", "InaccessibleDirectories",
2188 "ReadWritePaths", "ReadOnlyPaths", "InaccessiblePaths")) {
2189 _cleanup_strv_free_ char **l = NULL;
2190 char ***dirs;
2191 char **p;
2192
2193 r = sd_bus_message_read_strv(message, &l);
2194 if (r < 0)
2195 return r;
2196
2197 STRV_FOREACH(p, l) {
2198 char *i = *p;
2199 size_t offset;
2200
2201 offset = i[0] == '-';
2202 offset += i[offset] == '+';
2203 if (!path_is_absolute(i + offset))
2204 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid %s", name);
2205
2206 path_simplify(i + offset, false);
2207 }
2208
2209 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
2210 if (STR_IN_SET(name, "ReadWriteDirectories", "ReadWritePaths"))
2211 dirs = &c->read_write_paths;
2212 else if (STR_IN_SET(name, "ReadOnlyDirectories", "ReadOnlyPaths"))
2213 dirs = &c->read_only_paths;
2214 else /* "InaccessiblePaths" */
2215 dirs = &c->inaccessible_paths;
2216
2217 if (strv_isempty(l)) {
2218 *dirs = strv_free(*dirs);
2219 unit_write_settingf(u, flags, name, "%s=", name);
2220 } else {
2221 _cleanup_free_ char *joined = NULL;
2222
2223 joined = unit_concat_strv(l, UNIT_ESCAPE_SPECIFIERS);
2224 if (!joined)
2225 return -ENOMEM;
2226
2227 r = strv_extend_strv(dirs, l, true);
2228 if (r < 0)
2229 return -ENOMEM;
2230
2231 unit_write_settingf(u, flags, name, "%s=%s", name, joined);
2232 }
2233 }
2234
2235 return 1;
2236
2237 } else if (STR_IN_SET(name, "RuntimeDirectory", "StateDirectory", "CacheDirectory", "LogsDirectory", "ConfigurationDirectory")) {
2238 _cleanup_strv_free_ char **l = NULL;
2239 char **p;
2240
2241 r = sd_bus_message_read_strv(message, &l);
2242 if (r < 0)
2243 return r;
2244
2245 STRV_FOREACH(p, l) {
2246 if (!path_is_normalized(*p))
2247 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "%s= path is not normalized: %s", name, *p);
2248
2249 if (path_is_absolute(*p))
2250 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "%s= path is absolute: %s", name, *p);
2251
2252 if (path_startswith(*p, "private"))
2253 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "%s= path can't be 'private': %s", name, *p);
2254 }
2255
2256 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
2257 ExecDirectoryType i;
2258 ExecDirectory *d;
2259
2260 assert_se((i = exec_directory_type_from_string(name)) >= 0);
2261 d = c->directories + i;
2262
2263 if (strv_isempty(l)) {
2264 d->paths = strv_free(d->paths);
2265 unit_write_settingf(u, flags, name, "%s=", name);
2266 } else {
2267 _cleanup_free_ char *joined = NULL;
2268
2269 r = strv_extend_strv(&d->paths, l, true);
2270 if (r < 0)
2271 return r;
2272
2273 joined = unit_concat_strv(l, UNIT_ESCAPE_SPECIFIERS);
2274 if (!joined)
2275 return -ENOMEM;
2276
2277 unit_write_settingf(u, flags, name, "%s=%s", name, joined);
2278 }
2279 }
2280
2281 return 1;
2282
2283 } else if (STR_IN_SET(name, "AppArmorProfile", "SmackProcessLabel")) {
2284 int ignore;
2285 const char *s;
2286
2287 r = sd_bus_message_read(message, "(bs)", &ignore, &s);
2288 if (r < 0)
2289 return r;
2290
2291 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
2292 char **p;
2293 bool *b;
2294
2295 if (streq(name, "AppArmorProfile")) {
2296 p = &c->apparmor_profile;
2297 b = &c->apparmor_profile_ignore;
2298 } else { /* "SmackProcessLabel" */
2299 p = &c->smack_process_label;
2300 b = &c->smack_process_label_ignore;
2301 }
2302
2303 if (isempty(s)) {
2304 *p = mfree(*p);
2305 *b = false;
2306 } else {
2307 if (free_and_strdup(p, s) < 0)
2308 return -ENOMEM;
2309 *b = ignore;
2310 }
2311
2312 unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "%s=%s%s", name, ignore ? "-" : "", strempty(s));
2313 }
2314
2315 return 1;
2316
2317 } else if (STR_IN_SET(name, "BindPaths", "BindReadOnlyPaths")) {
2318 const char *source, *destination;
2319 int ignore_enoent;
2320 uint64_t mount_flags;
2321 bool empty = true;
2322
2323 r = sd_bus_message_enter_container(message, 'a', "(ssbt)");
2324 if (r < 0)
2325 return r;
2326
2327 while ((r = sd_bus_message_read(message, "(ssbt)", &source, &destination, &ignore_enoent, &mount_flags)) > 0) {
2328
2329 if (!path_is_absolute(source))
2330 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Source path %s is not absolute.", source);
2331 if (!path_is_absolute(destination))
2332 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Destination path %s is not absolute.", destination);
2333 if (!IN_SET(mount_flags, 0, MS_REC))
2334 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unknown mount flags.");
2335
2336 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
2337 r = bind_mount_add(&c->bind_mounts, &c->n_bind_mounts,
2338 &(BindMount) {
2339 .source = strdup(source),
2340 .destination = strdup(destination),
2341 .read_only = !!strstr(name, "ReadOnly"),
2342 .recursive = !!(mount_flags & MS_REC),
2343 .ignore_enoent = ignore_enoent,
2344 });
2345 if (r < 0)
2346 return r;
2347
2348 unit_write_settingf(
2349 u, flags|UNIT_ESCAPE_SPECIFIERS, name,
2350 "%s=%s%s:%s:%s",
2351 name,
2352 ignore_enoent ? "-" : "",
2353 source,
2354 destination,
2355 (mount_flags & MS_REC) ? "rbind" : "norbind");
2356 }
2357
2358 empty = false;
2359 }
2360 if (r < 0)
2361 return r;
2362
2363 r = sd_bus_message_exit_container(message);
2364 if (r < 0)
2365 return r;
2366
2367 if (empty) {
2368 bind_mount_free_many(c->bind_mounts, c->n_bind_mounts);
2369 c->bind_mounts = NULL;
2370 c->n_bind_mounts = 0;
2371
2372 unit_write_settingf(u, flags, name, "%s=", name);
2373 }
2374
2375 return 1;
2376
2377 } else if (streq(name, "TemporaryFileSystem")) {
2378 const char *path, *options;
2379 bool empty = true;
2380
2381 r = sd_bus_message_enter_container(message, 'a', "(ss)");
2382 if (r < 0)
2383 return r;
2384
2385 while ((r = sd_bus_message_read(message, "(ss)", &path, &options)) > 0) {
2386
2387 if (!path_is_absolute(path))
2388 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Mount point %s is not absolute.", path);
2389
2390 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
2391 r = temporary_filesystem_add(&c->temporary_filesystems, &c->n_temporary_filesystems, path, options);
2392 if (r < 0)
2393 return r;
2394
2395 unit_write_settingf(
2396 u, flags|UNIT_ESCAPE_SPECIFIERS, name,
2397 "%s=%s:%s",
2398 name,
2399 path,
2400 options);
2401 }
2402
2403 empty = false;
2404 }
2405 if (r < 0)
2406 return r;
2407
2408 r = sd_bus_message_exit_container(message);
2409 if (r < 0)
2410 return r;
2411
2412 if (empty) {
2413 temporary_filesystem_free_many(c->temporary_filesystems, c->n_temporary_filesystems);
2414 c->temporary_filesystems = NULL;
2415 c->n_temporary_filesystems = 0;
2416
2417 unit_write_settingf(u, flags, name, "%s=", name);
2418 }
2419
2420 return 1;
2421
2422 } else if ((suffix = startswith(name, "Limit"))) {
2423 const char *soft = NULL;
2424 int ri;
2425
2426 ri = rlimit_from_string(suffix);
2427 if (ri < 0) {
2428 soft = endswith(suffix, "Soft");
2429 if (soft) {
2430 const char *n;
2431
2432 n = strndupa(suffix, soft - suffix);
2433 ri = rlimit_from_string(n);
2434 if (ri >= 0)
2435 name = strjoina("Limit", n);
2436 }
2437 }
2438
2439 if (ri >= 0) {
2440 uint64_t rl;
2441 rlim_t x;
2442
2443 r = sd_bus_message_read(message, "t", &rl);
2444 if (r < 0)
2445 return r;
2446
2447 if (rl == (uint64_t) -1)
2448 x = RLIM_INFINITY;
2449 else {
2450 x = (rlim_t) rl;
2451
2452 if ((uint64_t) x != rl)
2453 return -ERANGE;
2454 }
2455
2456 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
2457 _cleanup_free_ char *f = NULL;
2458 struct rlimit nl;
2459
2460 if (c->rlimit[ri]) {
2461 nl = *c->rlimit[ri];
2462
2463 if (soft)
2464 nl.rlim_cur = x;
2465 else
2466 nl.rlim_max = x;
2467 } else
2468 /* When the resource limit is not initialized yet, then assign the value to both fields */
2469 nl = (struct rlimit) {
2470 .rlim_cur = x,
2471 .rlim_max = x,
2472 };
2473
2474 r = rlimit_format(&nl, &f);
2475 if (r < 0)
2476 return r;
2477
2478 if (c->rlimit[ri])
2479 *c->rlimit[ri] = nl;
2480 else {
2481 c->rlimit[ri] = newdup(struct rlimit, &nl, 1);
2482 if (!c->rlimit[ri])
2483 return -ENOMEM;
2484 }
2485
2486 unit_write_settingf(u, flags, name, "%s=%s", name, f);
2487 }
2488
2489 return 1;
2490 }
2491
2492 }
2493
2494 return 0;
2495 }
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