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5b12334d LP |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2013 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
9 | under the terms of the GNU Lesser General Public License as published by | |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | Lesser General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU Lesser General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
22 | #include <stdlib.h> | |
7d9fcc2b | 23 | #include <linux/capability.h> |
5b12334d LP |
24 | |
25 | #include "util.h" | |
34a5d5e5 | 26 | #include "capability.h" |
5b12334d LP |
27 | #include "cgroup-util.h" |
28 | #include "fileio.h" | |
29 | #include "audit.h" | |
30 | #include "bus-message.h" | |
31 | #include "bus-util.h" | |
49b832c5 | 32 | #include "strv.h" |
5b12334d | 33 | #include "bus-creds.h" |
a6278b88 | 34 | #include "bus-label.h" |
5b12334d LP |
35 | |
36 | enum { | |
37 | CAP_OFFSET_INHERITABLE = 0, | |
38 | CAP_OFFSET_PERMITTED = 1, | |
39 | CAP_OFFSET_EFFECTIVE = 2, | |
40 | CAP_OFFSET_BOUNDING = 3 | |
41 | }; | |
42 | ||
43 | void bus_creds_done(sd_bus_creds *c) { | |
44 | assert(c); | |
45 | ||
46 | /* For internal bus cred structures that are allocated by | |
47 | * something else */ | |
48 | ||
49 | free(c->session); | |
50 | free(c->unit); | |
51 | free(c->user_unit); | |
52 | free(c->slice); | |
455971c1 | 53 | free(c->unescaped_description); |
606303a9 | 54 | free(c->supplementary_gids); |
5b12334d | 55 | |
50c45216 LP |
56 | free(c->well_known_names); /* note that this is an strv, but |
57 | * we only free the array, not the | |
58 | * strings the array points to. The | |
59 | * full strv we only free if | |
60 | * c->allocated is set, see | |
61 | * below. */ | |
62 | ||
49b832c5 | 63 | strv_free(c->cmdline_array); |
5b12334d LP |
64 | } |
65 | ||
66 | _public_ sd_bus_creds *sd_bus_creds_ref(sd_bus_creds *c) { | |
67 | assert_return(c, NULL); | |
68 | ||
69 | if (c->allocated) { | |
70 | assert(c->n_ref > 0); | |
71 | c->n_ref++; | |
72 | } else { | |
73 | sd_bus_message *m; | |
74 | ||
75 | /* If this is an embedded creds structure, then | |
76 | * forward ref counting to the message */ | |
77 | m = container_of(c, sd_bus_message, creds); | |
78 | sd_bus_message_ref(m); | |
79 | } | |
80 | ||
81 | return c; | |
82 | } | |
83 | ||
84 | _public_ sd_bus_creds *sd_bus_creds_unref(sd_bus_creds *c) { | |
5b1bc83f LP |
85 | |
86 | if (!c) | |
87 | return NULL; | |
5b12334d LP |
88 | |
89 | if (c->allocated) { | |
90 | assert(c->n_ref > 0); | |
91 | c->n_ref--; | |
92 | ||
93 | if (c->n_ref == 0) { | |
5b12334d LP |
94 | free(c->comm); |
95 | free(c->tid_comm); | |
96 | free(c->exe); | |
97 | free(c->cmdline); | |
98 | free(c->cgroup); | |
99 | free(c->capability); | |
100 | free(c->label); | |
49b832c5 | 101 | free(c->unique_name); |
751bc6ac | 102 | free(c->cgroup_root); |
455971c1 | 103 | free(c->description); |
606303a9 | 104 | |
e12d81ae | 105 | free(c->supplementary_gids); |
606303a9 | 106 | c->supplementary_gids = NULL; |
50c45216 LP |
107 | |
108 | strv_free(c->well_known_names); | |
109 | c->well_known_names = NULL; | |
110 | ||
111 | bus_creds_done(c); | |
112 | ||
5b12334d LP |
113 | free(c); |
114 | } | |
115 | } else { | |
116 | sd_bus_message *m; | |
117 | ||
118 | m = container_of(c, sd_bus_message, creds); | |
119 | sd_bus_message_unref(m); | |
120 | } | |
121 | ||
122 | ||
123 | return NULL; | |
124 | } | |
125 | ||
4cf8496d | 126 | _public_ uint64_t sd_bus_creds_get_mask(const sd_bus_creds *c) { |
5b12334d LP |
127 | assert_return(c, 0); |
128 | ||
129 | return c->mask; | |
130 | } | |
131 | ||
132 | sd_bus_creds* bus_creds_new(void) { | |
133 | sd_bus_creds *c; | |
134 | ||
135 | c = new0(sd_bus_creds, 1); | |
136 | if (!c) | |
137 | return NULL; | |
138 | ||
139 | c->allocated = true; | |
140 | c->n_ref = 1; | |
141 | return c; | |
142 | } | |
143 | ||
151b9b96 | 144 | _public_ int sd_bus_creds_new_from_pid(sd_bus_creds **ret, pid_t pid, uint64_t mask) { |
5b12334d LP |
145 | sd_bus_creds *c; |
146 | int r; | |
147 | ||
148 | assert_return(pid >= 0, -EINVAL); | |
15411c0c | 149 | assert_return(mask <= _SD_BUS_CREDS_ALL, -EOPNOTSUPP); |
5b12334d LP |
150 | assert_return(ret, -EINVAL); |
151 | ||
152 | if (pid == 0) | |
153 | pid = getpid(); | |
154 | ||
155 | c = bus_creds_new(); | |
156 | if (!c) | |
157 | return -ENOMEM; | |
158 | ||
705a415f | 159 | r = bus_creds_add_more(c, mask | SD_BUS_CREDS_AUGMENT, pid, 0); |
5b12334d | 160 | if (r < 0) { |
0349c608 | 161 | sd_bus_creds_unref(c); |
5b12334d LP |
162 | return r; |
163 | } | |
164 | ||
165 | /* Check if the process existed at all, in case we haven't | |
166 | * figured that out already */ | |
9f5650ae | 167 | if (!pid_is_alive(pid)) { |
5b12334d LP |
168 | sd_bus_creds_unref(c); |
169 | return -ESRCH; | |
170 | } | |
171 | ||
172 | *ret = c; | |
173 | return 0; | |
174 | } | |
175 | ||
176 | _public_ int sd_bus_creds_get_uid(sd_bus_creds *c, uid_t *uid) { | |
177 | assert_return(c, -EINVAL); | |
178 | assert_return(uid, -EINVAL); | |
6a4abbc8 LP |
179 | |
180 | if (!(c->mask & SD_BUS_CREDS_UID)) | |
181 | return -ENODATA; | |
5b12334d LP |
182 | |
183 | *uid = c->uid; | |
184 | return 0; | |
185 | } | |
186 | ||
705a415f LP |
187 | _public_ int sd_bus_creds_get_euid(sd_bus_creds *c, uid_t *euid) { |
188 | assert_return(c, -EINVAL); | |
189 | assert_return(euid, -EINVAL); | |
190 | ||
191 | if (!(c->mask & SD_BUS_CREDS_EUID)) | |
192 | return -ENODATA; | |
193 | ||
194 | *euid = c->euid; | |
195 | return 0; | |
196 | } | |
197 | ||
198 | _public_ int sd_bus_creds_get_suid(sd_bus_creds *c, uid_t *suid) { | |
199 | assert_return(c, -EINVAL); | |
200 | assert_return(suid, -EINVAL); | |
201 | ||
202 | if (!(c->mask & SD_BUS_CREDS_SUID)) | |
203 | return -ENODATA; | |
204 | ||
205 | *suid = c->suid; | |
206 | return 0; | |
207 | } | |
208 | ||
209 | ||
210 | _public_ int sd_bus_creds_get_fsuid(sd_bus_creds *c, uid_t *fsuid) { | |
211 | assert_return(c, -EINVAL); | |
212 | assert_return(fsuid, -EINVAL); | |
213 | ||
214 | if (!(c->mask & SD_BUS_CREDS_FSUID)) | |
215 | return -ENODATA; | |
216 | ||
217 | *fsuid = c->fsuid; | |
218 | return 0; | |
219 | } | |
220 | ||
5b12334d LP |
221 | _public_ int sd_bus_creds_get_gid(sd_bus_creds *c, gid_t *gid) { |
222 | assert_return(c, -EINVAL); | |
223 | assert_return(gid, -EINVAL); | |
6a4abbc8 | 224 | |
1c021669 | 225 | if (!(c->mask & SD_BUS_CREDS_GID)) |
6a4abbc8 | 226 | return -ENODATA; |
5b12334d LP |
227 | |
228 | *gid = c->gid; | |
229 | return 0; | |
230 | } | |
231 | ||
705a415f LP |
232 | |
233 | _public_ int sd_bus_creds_get_egid(sd_bus_creds *c, gid_t *egid) { | |
234 | assert_return(c, -EINVAL); | |
235 | assert_return(egid, -EINVAL); | |
236 | ||
237 | if (!(c->mask & SD_BUS_CREDS_EGID)) | |
238 | return -ENODATA; | |
239 | ||
240 | *egid = c->egid; | |
241 | return 0; | |
242 | } | |
243 | ||
244 | _public_ int sd_bus_creds_get_sgid(sd_bus_creds *c, gid_t *sgid) { | |
245 | assert_return(c, -EINVAL); | |
246 | assert_return(sgid, -EINVAL); | |
247 | ||
248 | if (!(c->mask & SD_BUS_CREDS_SGID)) | |
249 | return -ENODATA; | |
250 | ||
251 | *sgid = c->sgid; | |
252 | return 0; | |
253 | } | |
254 | ||
705a415f LP |
255 | _public_ int sd_bus_creds_get_fsgid(sd_bus_creds *c, gid_t *fsgid) { |
256 | assert_return(c, -EINVAL); | |
257 | assert_return(fsgid, -EINVAL); | |
258 | ||
259 | if (!(c->mask & SD_BUS_CREDS_FSGID)) | |
260 | return -ENODATA; | |
261 | ||
262 | *fsgid = c->fsgid; | |
263 | return 0; | |
264 | } | |
265 | ||
02581590 LP |
266 | _public_ int sd_bus_creds_get_supplementary_gids(sd_bus_creds *c, const gid_t **gids) { |
267 | assert_return(c, -EINVAL); | |
268 | assert_return(gids, -EINVAL); | |
269 | ||
270 | if (!(c->mask & SD_BUS_CREDS_SUPPLEMENTARY_GIDS)) | |
271 | return -ENODATA; | |
272 | ||
273 | *gids = c->supplementary_gids; | |
274 | return (int) c->n_supplementary_gids; | |
275 | } | |
276 | ||
5b12334d LP |
277 | _public_ int sd_bus_creds_get_pid(sd_bus_creds *c, pid_t *pid) { |
278 | assert_return(c, -EINVAL); | |
279 | assert_return(pid, -EINVAL); | |
6a4abbc8 LP |
280 | |
281 | if (!(c->mask & SD_BUS_CREDS_PID)) | |
282 | return -ENODATA; | |
5b12334d LP |
283 | |
284 | assert(c->pid > 0); | |
285 | *pid = c->pid; | |
286 | return 0; | |
287 | } | |
288 | ||
289 | _public_ int sd_bus_creds_get_tid(sd_bus_creds *c, pid_t *tid) { | |
290 | assert_return(c, -EINVAL); | |
291 | assert_return(tid, -EINVAL); | |
6a4abbc8 LP |
292 | |
293 | if (!(c->mask & SD_BUS_CREDS_TID)) | |
294 | return -ENODATA; | |
5b12334d LP |
295 | |
296 | assert(c->tid > 0); | |
297 | *tid = c->tid; | |
298 | return 0; | |
299 | } | |
300 | ||
5b12334d LP |
301 | _public_ int sd_bus_creds_get_selinux_context(sd_bus_creds *c, const char **ret) { |
302 | assert_return(c, -EINVAL); | |
6a4abbc8 LP |
303 | |
304 | if (!(c->mask & SD_BUS_CREDS_SELINUX_CONTEXT)) | |
305 | return -ENODATA; | |
5b12334d LP |
306 | |
307 | assert(c->label); | |
308 | *ret = c->label; | |
309 | return 0; | |
310 | } | |
311 | ||
312 | _public_ int sd_bus_creds_get_comm(sd_bus_creds *c, const char **ret) { | |
313 | assert_return(c, -EINVAL); | |
314 | assert_return(ret, -EINVAL); | |
6a4abbc8 LP |
315 | |
316 | if (!(c->mask & SD_BUS_CREDS_COMM)) | |
317 | return -ENODATA; | |
5b12334d LP |
318 | |
319 | assert(c->comm); | |
320 | *ret = c->comm; | |
321 | return 0; | |
322 | } | |
323 | ||
324 | _public_ int sd_bus_creds_get_tid_comm(sd_bus_creds *c, const char **ret) { | |
325 | assert_return(c, -EINVAL); | |
326 | assert_return(ret, -EINVAL); | |
6a4abbc8 LP |
327 | |
328 | if (!(c->mask & SD_BUS_CREDS_TID_COMM)) | |
329 | return -ENODATA; | |
5b12334d LP |
330 | |
331 | assert(c->tid_comm); | |
332 | *ret = c->tid_comm; | |
333 | return 0; | |
334 | } | |
335 | ||
336 | _public_ int sd_bus_creds_get_exe(sd_bus_creds *c, const char **ret) { | |
337 | assert_return(c, -EINVAL); | |
338 | assert_return(ret, -EINVAL); | |
6a4abbc8 LP |
339 | |
340 | if (!(c->mask & SD_BUS_CREDS_EXE)) | |
341 | return -ENODATA; | |
5b12334d LP |
342 | |
343 | assert(c->exe); | |
344 | *ret = c->exe; | |
345 | return 0; | |
346 | } | |
347 | ||
348 | _public_ int sd_bus_creds_get_cgroup(sd_bus_creds *c, const char **ret) { | |
349 | assert_return(c, -EINVAL); | |
350 | assert_return(ret, -EINVAL); | |
6a4abbc8 LP |
351 | |
352 | if (!(c->mask & SD_BUS_CREDS_CGROUP)) | |
353 | return -ENODATA; | |
5b12334d LP |
354 | |
355 | assert(c->cgroup); | |
356 | *ret = c->cgroup; | |
357 | return 0; | |
358 | } | |
359 | ||
360 | _public_ int sd_bus_creds_get_unit(sd_bus_creds *c, const char **ret) { | |
361 | int r; | |
362 | ||
363 | assert_return(c, -EINVAL); | |
364 | assert_return(ret, -EINVAL); | |
6a4abbc8 LP |
365 | |
366 | if (!(c->mask & SD_BUS_CREDS_UNIT)) | |
367 | return -ENODATA; | |
5b12334d LP |
368 | |
369 | assert(c->cgroup); | |
370 | ||
371 | if (!c->unit) { | |
751bc6ac LP |
372 | const char *shifted; |
373 | ||
374 | r = cg_shift_path(c->cgroup, c->cgroup_root, &shifted); | |
375 | if (r < 0) | |
376 | return r; | |
377 | ||
378 | r = cg_path_get_unit(shifted, (char**) &c->unit); | |
5b12334d LP |
379 | if (r < 0) |
380 | return r; | |
381 | } | |
382 | ||
383 | *ret = c->unit; | |
384 | return 0; | |
385 | } | |
386 | ||
387 | _public_ int sd_bus_creds_get_user_unit(sd_bus_creds *c, const char **ret) { | |
388 | int r; | |
389 | ||
390 | assert_return(c, -EINVAL); | |
391 | assert_return(ret, -EINVAL); | |
6a4abbc8 LP |
392 | |
393 | if (!(c->mask & SD_BUS_CREDS_USER_UNIT)) | |
394 | return -ENODATA; | |
5b12334d LP |
395 | |
396 | assert(c->cgroup); | |
397 | ||
398 | if (!c->user_unit) { | |
751bc6ac LP |
399 | const char *shifted; |
400 | ||
401 | r = cg_shift_path(c->cgroup, c->cgroup_root, &shifted); | |
402 | if (r < 0) | |
403 | return r; | |
404 | ||
405 | r = cg_path_get_user_unit(shifted, (char**) &c->user_unit); | |
5b12334d LP |
406 | if (r < 0) |
407 | return r; | |
408 | } | |
409 | ||
410 | *ret = c->user_unit; | |
411 | return 0; | |
412 | } | |
413 | ||
414 | _public_ int sd_bus_creds_get_slice(sd_bus_creds *c, const char **ret) { | |
415 | int r; | |
416 | ||
417 | assert_return(c, -EINVAL); | |
418 | assert_return(ret, -EINVAL); | |
6a4abbc8 LP |
419 | |
420 | if (!(c->mask & SD_BUS_CREDS_SLICE)) | |
421 | return -ENODATA; | |
5b12334d LP |
422 | |
423 | assert(c->cgroup); | |
424 | ||
425 | if (!c->slice) { | |
751bc6ac LP |
426 | const char *shifted; |
427 | ||
428 | r = cg_shift_path(c->cgroup, c->cgroup_root, &shifted); | |
429 | if (r < 0) | |
430 | return r; | |
431 | ||
432 | r = cg_path_get_slice(shifted, (char**) &c->slice); | |
5b12334d LP |
433 | if (r < 0) |
434 | return r; | |
435 | } | |
436 | ||
437 | *ret = c->slice; | |
438 | return 0; | |
439 | } | |
440 | ||
441 | _public_ int sd_bus_creds_get_session(sd_bus_creds *c, const char **ret) { | |
442 | int r; | |
443 | ||
444 | assert_return(c, -EINVAL); | |
445 | assert_return(ret, -EINVAL); | |
6a4abbc8 LP |
446 | |
447 | if (!(c->mask & SD_BUS_CREDS_SESSION)) | |
448 | return -ENODATA; | |
5b12334d LP |
449 | |
450 | assert(c->cgroup); | |
451 | ||
452 | if (!c->session) { | |
751bc6ac LP |
453 | const char *shifted; |
454 | ||
455 | r = cg_shift_path(c->cgroup, c->cgroup_root, &shifted); | |
456 | if (r < 0) | |
457 | return r; | |
458 | ||
459 | r = cg_path_get_session(shifted, (char**) &c->session); | |
5b12334d LP |
460 | if (r < 0) |
461 | return r; | |
462 | } | |
463 | ||
464 | *ret = c->session; | |
465 | return 0; | |
466 | } | |
467 | ||
468 | _public_ int sd_bus_creds_get_owner_uid(sd_bus_creds *c, uid_t *uid) { | |
751bc6ac LP |
469 | const char *shifted; |
470 | int r; | |
471 | ||
5b12334d LP |
472 | assert_return(c, -EINVAL); |
473 | assert_return(uid, -EINVAL); | |
6a4abbc8 LP |
474 | |
475 | if (!(c->mask & SD_BUS_CREDS_OWNER_UID)) | |
476 | return -ENODATA; | |
5b12334d LP |
477 | |
478 | assert(c->cgroup); | |
479 | ||
751bc6ac LP |
480 | r = cg_shift_path(c->cgroup, c->cgroup_root, &shifted); |
481 | if (r < 0) | |
482 | return r; | |
483 | ||
484 | return cg_path_get_owner_uid(shifted, uid); | |
5b12334d LP |
485 | } |
486 | ||
487 | _public_ int sd_bus_creds_get_cmdline(sd_bus_creds *c, char ***cmdline) { | |
5b12334d | 488 | assert_return(c, -EINVAL); |
6a4abbc8 LP |
489 | |
490 | if (!(c->mask & SD_BUS_CREDS_CMDLINE)) | |
491 | return -ENODATA; | |
5b12334d | 492 | |
689bd78d | 493 | assert_return(c->cmdline, -ESRCH); |
5b12334d LP |
494 | assert(c->cmdline); |
495 | ||
49b832c5 LP |
496 | if (!c->cmdline_array) { |
497 | c->cmdline_array = strv_parse_nulstr(c->cmdline, c->cmdline_size); | |
498 | if (!c->cmdline_array) | |
499 | return -ENOMEM; | |
5b12334d LP |
500 | } |
501 | ||
5b12334d | 502 | *cmdline = c->cmdline_array; |
5b12334d LP |
503 | return 0; |
504 | } | |
505 | ||
506 | _public_ int sd_bus_creds_get_audit_session_id(sd_bus_creds *c, uint32_t *sessionid) { | |
507 | assert_return(c, -EINVAL); | |
508 | assert_return(sessionid, -EINVAL); | |
6a4abbc8 LP |
509 | |
510 | if (!(c->mask & SD_BUS_CREDS_AUDIT_SESSION_ID)) | |
511 | return -ENODATA; | |
5b12334d LP |
512 | |
513 | *sessionid = c->audit_session_id; | |
514 | return 0; | |
515 | } | |
516 | ||
517 | _public_ int sd_bus_creds_get_audit_login_uid(sd_bus_creds *c, uid_t *uid) { | |
518 | assert_return(c, -EINVAL); | |
519 | assert_return(uid, -EINVAL); | |
6a4abbc8 LP |
520 | |
521 | if (!(c->mask & SD_BUS_CREDS_AUDIT_LOGIN_UID)) | |
522 | return -ENODATA; | |
5b12334d LP |
523 | |
524 | *uid = c->audit_login_uid; | |
525 | return 0; | |
526 | } | |
527 | ||
49b832c5 LP |
528 | _public_ int sd_bus_creds_get_unique_name(sd_bus_creds *c, const char **unique_name) { |
529 | assert_return(c, -EINVAL); | |
530 | assert_return(unique_name, -EINVAL); | |
6a4abbc8 LP |
531 | |
532 | if (!(c->mask & SD_BUS_CREDS_UNIQUE_NAME)) | |
533 | return -ENODATA; | |
49b832c5 LP |
534 | |
535 | *unique_name = c->unique_name; | |
536 | return 0; | |
537 | } | |
538 | ||
539 | _public_ int sd_bus_creds_get_well_known_names(sd_bus_creds *c, char ***well_known_names) { | |
540 | assert_return(c, -EINVAL); | |
541 | assert_return(well_known_names, -EINVAL); | |
6a4abbc8 LP |
542 | |
543 | if (!(c->mask & SD_BUS_CREDS_WELL_KNOWN_NAMES)) | |
544 | return -ENODATA; | |
49b832c5 | 545 | |
ac653862 LP |
546 | /* As a special hack we return the bus driver as well-known |
547 | * names list when this is requested. */ | |
548 | if (c->well_known_names_driver) { | |
549 | static const char* const wkn[] = { | |
550 | "org.freedesktop.DBus", | |
551 | NULL | |
552 | }; | |
553 | ||
554 | *well_known_names = (char**) wkn; | |
555 | return 0; | |
556 | } | |
557 | ||
fb6d9b77 LP |
558 | if (c->well_known_names_local) { |
559 | static const char* const wkn[] = { | |
560 | "org.freedesktop.DBus.Local", | |
561 | NULL | |
562 | }; | |
563 | ||
564 | *well_known_names = (char**) wkn; | |
565 | return 0; | |
566 | } | |
567 | ||
65dae17a | 568 | *well_known_names = c->well_known_names; |
49b832c5 LP |
569 | return 0; |
570 | } | |
571 | ||
455971c1 | 572 | _public_ int sd_bus_creds_get_description(sd_bus_creds *c, const char **ret) { |
cccb0b2c LP |
573 | assert_return(c, -EINVAL); |
574 | assert_return(ret, -EINVAL); | |
575 | ||
455971c1 | 576 | if (!(c->mask & SD_BUS_CREDS_DESCRIPTION)) |
cccb0b2c LP |
577 | return -ENODATA; |
578 | ||
455971c1 | 579 | assert(c->description); |
2578d51e | 580 | |
455971c1 LP |
581 | if (!c->unescaped_description) { |
582 | c->unescaped_description = bus_label_unescape(c->description); | |
583 | if (!c->unescaped_description) | |
2578d51e LP |
584 | return -ENOMEM; |
585 | } | |
586 | ||
455971c1 | 587 | *ret = c->unescaped_description; |
cccb0b2c LP |
588 | return 0; |
589 | } | |
590 | ||
5b12334d LP |
591 | static int has_cap(sd_bus_creds *c, unsigned offset, int capability) { |
592 | size_t sz; | |
593 | ||
594 | assert(c); | |
34a5d5e5 | 595 | assert(capability >= 0); |
5b12334d LP |
596 | assert(c->capability); |
597 | ||
7d9fcc2b | 598 | sz = DIV_ROUND_UP(cap_last_cap(), 32U); |
34a5d5e5 | 599 | if ((unsigned)capability > cap_last_cap()) |
5b12334d LP |
600 | return 0; |
601 | ||
7d9fcc2b | 602 | return !!(c->capability[offset * sz + CAP_TO_INDEX(capability)] & CAP_TO_MASK(capability)); |
5b12334d LP |
603 | } |
604 | ||
605 | _public_ int sd_bus_creds_has_effective_cap(sd_bus_creds *c, int capability) { | |
606 | assert_return(c, -EINVAL); | |
607 | assert_return(capability >= 0, -EINVAL); | |
6a4abbc8 LP |
608 | |
609 | if (!(c->mask & SD_BUS_CREDS_EFFECTIVE_CAPS)) | |
610 | return -ENODATA; | |
5b12334d LP |
611 | |
612 | return has_cap(c, CAP_OFFSET_EFFECTIVE, capability); | |
613 | } | |
614 | ||
615 | _public_ int sd_bus_creds_has_permitted_cap(sd_bus_creds *c, int capability) { | |
616 | assert_return(c, -EINVAL); | |
617 | assert_return(capability >= 0, -EINVAL); | |
6a4abbc8 LP |
618 | |
619 | if (!(c->mask & SD_BUS_CREDS_PERMITTED_CAPS)) | |
620 | return -ENODATA; | |
5b12334d LP |
621 | |
622 | return has_cap(c, CAP_OFFSET_PERMITTED, capability); | |
623 | } | |
624 | ||
625 | _public_ int sd_bus_creds_has_inheritable_cap(sd_bus_creds *c, int capability) { | |
626 | assert_return(c, -EINVAL); | |
627 | assert_return(capability >= 0, -EINVAL); | |
6a4abbc8 LP |
628 | |
629 | if (!(c->mask & SD_BUS_CREDS_INHERITABLE_CAPS)) | |
630 | return -ENODATA; | |
5b12334d LP |
631 | |
632 | return has_cap(c, CAP_OFFSET_INHERITABLE, capability); | |
633 | } | |
634 | ||
635 | _public_ int sd_bus_creds_has_bounding_cap(sd_bus_creds *c, int capability) { | |
636 | assert_return(c, -EINVAL); | |
637 | assert_return(capability >= 0, -EINVAL); | |
6a4abbc8 LP |
638 | |
639 | if (!(c->mask & SD_BUS_CREDS_BOUNDING_CAPS)) | |
640 | return -ENODATA; | |
5b12334d LP |
641 | |
642 | return has_cap(c, CAP_OFFSET_BOUNDING, capability); | |
643 | } | |
644 | ||
645 | static int parse_caps(sd_bus_creds *c, unsigned offset, const char *p) { | |
34a5d5e5 | 646 | size_t sz, max; |
7d9fcc2b | 647 | unsigned i, j; |
5b12334d LP |
648 | |
649 | assert(c); | |
650 | assert(p); | |
651 | ||
7d9fcc2b | 652 | max = DIV_ROUND_UP(cap_last_cap(), 32U); |
5b12334d LP |
653 | p += strspn(p, WHITESPACE); |
654 | ||
655 | sz = strlen(p); | |
7d9fcc2b | 656 | if (sz % 8 != 0) |
5b12334d LP |
657 | return -EINVAL; |
658 | ||
7d9fcc2b | 659 | sz /= 8; |
34a5d5e5 DH |
660 | if (sz > max) |
661 | return -EINVAL; | |
662 | ||
5b12334d | 663 | if (!c->capability) { |
7d9fcc2b | 664 | c->capability = new0(uint32_t, max * 4); |
5b12334d LP |
665 | if (!c->capability) |
666 | return -ENOMEM; | |
5b12334d LP |
667 | } |
668 | ||
669 | for (i = 0; i < sz; i ++) { | |
7d9fcc2b | 670 | uint32_t v = 0; |
5b12334d | 671 | |
7d9fcc2b DH |
672 | for (j = 0; j < 8; ++j) { |
673 | int t; | |
5b12334d | 674 | |
7d9fcc2b DH |
675 | t = unhexchar(*p++); |
676 | if (t < 0) | |
677 | return -EINVAL; | |
5b12334d | 678 | |
7d9fcc2b DH |
679 | v = (v << 4) | t; |
680 | } | |
681 | ||
682 | c->capability[offset * max + (sz - i - 1)] = v; | |
5b12334d LP |
683 | } |
684 | ||
685 | return 0; | |
686 | } | |
687 | ||
688 | int bus_creds_add_more(sd_bus_creds *c, uint64_t mask, pid_t pid, pid_t tid) { | |
689 | uint64_t missing; | |
690 | int r; | |
691 | ||
692 | assert(c); | |
693 | assert(c->allocated); | |
694 | ||
705a415f LP |
695 | if (!(mask & SD_BUS_CREDS_AUGMENT)) |
696 | return 0; | |
697 | ||
5b12334d LP |
698 | missing = mask & ~c->mask; |
699 | if (missing == 0) | |
700 | return 0; | |
701 | ||
702 | /* Try to retrieve PID from creds if it wasn't passed to us */ | |
703 | if (pid <= 0 && (c->mask & SD_BUS_CREDS_PID)) | |
704 | pid = c->pid; | |
705 | ||
706 | if (tid <= 0 && (c->mask & SD_BUS_CREDS_TID)) | |
707 | tid = c->pid; | |
708 | ||
709 | /* Without pid we cannot do much... */ | |
710 | if (pid <= 0) | |
711 | return 0; | |
712 | ||
705a415f LP |
713 | if (pid > 0) { |
714 | c->pid = pid; | |
715 | c->mask |= SD_BUS_CREDS_PID; | |
716 | } | |
717 | ||
718 | if (tid > 0) { | |
719 | c->tid = tid; | |
720 | c->mask |= SD_BUS_CREDS_TID; | |
721 | } | |
722 | ||
723 | if (missing & (SD_BUS_CREDS_UID | SD_BUS_CREDS_EUID | SD_BUS_CREDS_SUID | SD_BUS_CREDS_FSUID | | |
724 | SD_BUS_CREDS_GID | SD_BUS_CREDS_EGID | SD_BUS_CREDS_SGID | SD_BUS_CREDS_FSGID | | |
02581590 | 725 | SD_BUS_CREDS_SUPPLEMENTARY_GIDS | |
5b12334d LP |
726 | SD_BUS_CREDS_EFFECTIVE_CAPS | SD_BUS_CREDS_INHERITABLE_CAPS | |
727 | SD_BUS_CREDS_PERMITTED_CAPS | SD_BUS_CREDS_BOUNDING_CAPS)) { | |
728 | ||
729 | _cleanup_fclose_ FILE *f = NULL; | |
5b12334d LP |
730 | const char *p; |
731 | ||
732 | p = procfs_file_alloca(pid, "status"); | |
733 | ||
734 | f = fopen(p, "re"); | |
705a415f LP |
735 | if (!f) { |
736 | if (errno == ENOENT) | |
737 | return -ESRCH; | |
738 | else if (errno != EPERM && errno != EACCES) | |
739 | return -errno; | |
740 | } else { | |
741 | char line[LINE_MAX]; | |
742 | ||
743 | FOREACH_LINE(line, f, return -errno) { | |
744 | truncate_nl(line); | |
745 | ||
746 | if (missing & (SD_BUS_CREDS_UID|SD_BUS_CREDS_EUID|SD_BUS_CREDS_SUID|SD_BUS_CREDS_FSUID)) { | |
747 | p = startswith(line, "Uid:"); | |
748 | if (p) { | |
749 | unsigned long uid, euid, suid, fsuid; | |
750 | ||
751 | p += strspn(p, WHITESPACE); | |
752 | if (sscanf(p, "%lu %lu %lu %lu", &uid, &euid, &suid, &fsuid) != 4) | |
753 | return -EIO; | |
754 | ||
755 | c->uid = (uid_t) uid; | |
756 | c->euid = (uid_t) euid; | |
757 | c->suid = (uid_t) suid; | |
758 | c->fsuid = (uid_t) fsuid; | |
759 | c->mask |= missing & (SD_BUS_CREDS_UID|SD_BUS_CREDS_EUID|SD_BUS_CREDS_SUID|SD_BUS_CREDS_FSUID); | |
760 | continue; | |
761 | } | |
5b12334d | 762 | } |
5b12334d | 763 | |
705a415f LP |
764 | if (missing & (SD_BUS_CREDS_GID|SD_BUS_CREDS_EGID|SD_BUS_CREDS_SGID|SD_BUS_CREDS_FSGID)) { |
765 | p = startswith(line, "Gid:"); | |
766 | if (p) { | |
767 | unsigned long gid, egid, sgid, fsgid; | |
768 | ||
769 | p += strspn(p, WHITESPACE); | |
770 | if (sscanf(p, "%lu %lu %lu %lu", &gid, &egid, &sgid, &fsgid) != 4) | |
771 | return -EIO; | |
772 | ||
773 | c->gid = (gid_t) gid; | |
774 | c->egid = (gid_t) egid; | |
775 | c->sgid = (gid_t) sgid; | |
776 | c->fsgid = (gid_t) fsgid; | |
777 | c->mask |= missing & (SD_BUS_CREDS_GID|SD_BUS_CREDS_EGID|SD_BUS_CREDS_SGID|SD_BUS_CREDS_FSGID); | |
778 | continue; | |
779 | } | |
5b12334d | 780 | } |
5b12334d | 781 | |
02581590 LP |
782 | if (missing & SD_BUS_CREDS_SUPPLEMENTARY_GIDS) { |
783 | p = startswith(line, "Groups:"); | |
784 | if (p) { | |
785 | size_t allocated = 0; | |
786 | ||
787 | for (;;) { | |
788 | unsigned long g; | |
789 | int n = 0; | |
790 | ||
791 | p += strspn(p, WHITESPACE); | |
792 | if (*p == 0) | |
793 | break; | |
794 | ||
795 | if (sscanf(p, "%lu%n", &g, &n) != 1) | |
796 | return -EIO; | |
797 | ||
798 | if (!GREEDY_REALLOC(c->supplementary_gids, allocated, c->n_supplementary_gids+1)) | |
799 | return -ENOMEM; | |
800 | ||
801 | c->supplementary_gids[c->n_supplementary_gids++] = (gid_t) g; | |
802 | p += n; | |
803 | } | |
804 | ||
805 | c->mask |= SD_BUS_CREDS_SUPPLEMENTARY_GIDS; | |
806 | continue; | |
807 | } | |
808 | } | |
809 | ||
705a415f LP |
810 | if (missing & SD_BUS_CREDS_EFFECTIVE_CAPS) { |
811 | p = startswith(line, "CapEff:"); | |
812 | if (p) { | |
813 | r = parse_caps(c, CAP_OFFSET_EFFECTIVE, p); | |
814 | if (r < 0) | |
815 | return r; | |
5b12334d | 816 | |
705a415f LP |
817 | c->mask |= SD_BUS_CREDS_EFFECTIVE_CAPS; |
818 | continue; | |
819 | } | |
5b12334d | 820 | } |
5b12334d | 821 | |
705a415f LP |
822 | if (missing & SD_BUS_CREDS_PERMITTED_CAPS) { |
823 | p = startswith(line, "CapPrm:"); | |
824 | if (p) { | |
825 | r = parse_caps(c, CAP_OFFSET_PERMITTED, p); | |
826 | if (r < 0) | |
827 | return r; | |
5b12334d | 828 | |
705a415f LP |
829 | c->mask |= SD_BUS_CREDS_PERMITTED_CAPS; |
830 | continue; | |
831 | } | |
5b12334d | 832 | } |
5b12334d | 833 | |
705a415f LP |
834 | if (missing & SD_BUS_CREDS_INHERITABLE_CAPS) { |
835 | p = startswith(line, "CapInh:"); | |
836 | if (p) { | |
837 | r = parse_caps(c, CAP_OFFSET_INHERITABLE, p); | |
838 | if (r < 0) | |
839 | return r; | |
5b12334d | 840 | |
705a415f LP |
841 | c->mask |= SD_BUS_CREDS_INHERITABLE_CAPS; |
842 | continue; | |
843 | } | |
5b12334d | 844 | } |
5b12334d | 845 | |
705a415f LP |
846 | if (missing & SD_BUS_CREDS_BOUNDING_CAPS) { |
847 | p = startswith(line, "CapBnd:"); | |
848 | if (p) { | |
849 | r = parse_caps(c, CAP_OFFSET_BOUNDING, p); | |
850 | if (r < 0) | |
851 | return r; | |
5b12334d | 852 | |
705a415f LP |
853 | c->mask |= SD_BUS_CREDS_BOUNDING_CAPS; |
854 | continue; | |
855 | } | |
5b12334d LP |
856 | } |
857 | } | |
858 | } | |
859 | } | |
860 | ||
5b12334d LP |
861 | if (missing & SD_BUS_CREDS_SELINUX_CONTEXT) { |
862 | const char *p; | |
863 | ||
864 | p = procfs_file_alloca(pid, "attr/current"); | |
865 | r = read_one_line_file(p, &c->label); | |
705a415f LP |
866 | if (r < 0) { |
867 | if (r != -ENOENT && r != -EINVAL && r != -EPERM && r != -EACCES) | |
868 | return r; | |
869 | } else | |
5b12334d LP |
870 | c->mask |= SD_BUS_CREDS_SELINUX_CONTEXT; |
871 | } | |
872 | ||
873 | if (missing & SD_BUS_CREDS_COMM) { | |
874 | r = get_process_comm(pid, &c->comm); | |
705a415f LP |
875 | if (r < 0) { |
876 | if (r != -EPERM && r != -EACCES) | |
877 | return r; | |
878 | } else | |
879 | c->mask |= SD_BUS_CREDS_COMM; | |
5b12334d LP |
880 | } |
881 | ||
882 | if (missing & SD_BUS_CREDS_EXE) { | |
883 | r = get_process_exe(pid, &c->exe); | |
705a415f LP |
884 | if (r < 0) { |
885 | if (r != -EPERM && r != -EACCES) | |
886 | return r; | |
887 | } else | |
888 | c->mask |= SD_BUS_CREDS_EXE; | |
5b12334d LP |
889 | } |
890 | ||
891 | if (missing & SD_BUS_CREDS_CMDLINE) { | |
892 | const char *p; | |
893 | ||
894 | p = procfs_file_alloca(pid, "cmdline"); | |
49b832c5 | 895 | r = read_full_file(p, &c->cmdline, &c->cmdline_size); |
705a415f LP |
896 | if (r < 0) { |
897 | if (r == -ENOENT) | |
898 | return -ESRCH; | |
899 | if (r != -EPERM && r != -EACCES) | |
900 | return r; | |
901 | } else { | |
902 | if (c->cmdline_size == 0) { | |
903 | free(c->cmdline); | |
904 | c->cmdline = NULL; | |
905 | } else | |
906 | c->mask |= SD_BUS_CREDS_CMDLINE; | |
907 | } | |
5b12334d LP |
908 | } |
909 | ||
910 | if (tid > 0 && (missing & SD_BUS_CREDS_TID_COMM)) { | |
911 | _cleanup_free_ char *p = NULL; | |
912 | ||
de0671ee | 913 | if (asprintf(&p, "/proc/"PID_FMT"/task/"PID_FMT"/comm", pid, tid) < 0) |
5b12334d LP |
914 | return -ENOMEM; |
915 | ||
916 | r = read_one_line_file(p, &c->tid_comm); | |
705a415f LP |
917 | if (r < 0) { |
918 | if (r == -ENOENT) | |
919 | return -ESRCH; | |
920 | if (r != -EPERM && r != -EACCES) | |
921 | return r; | |
922 | } else | |
923 | c->mask |= SD_BUS_CREDS_TID_COMM; | |
5b12334d LP |
924 | } |
925 | ||
926 | if (missing & (SD_BUS_CREDS_CGROUP|SD_BUS_CREDS_UNIT|SD_BUS_CREDS_USER_UNIT|SD_BUS_CREDS_SLICE|SD_BUS_CREDS_SESSION|SD_BUS_CREDS_OWNER_UID)) { | |
927 | ||
928 | r = cg_pid_get_path(NULL, pid, &c->cgroup); | |
705a415f LP |
929 | if (r < 0) { |
930 | if (r != -EPERM && r != -EACCES) | |
931 | return r; | |
932 | } else { | |
933 | r = cg_get_root_path(&c->cgroup_root); | |
934 | if (r < 0) | |
935 | return r; | |
936 | ||
937 | c->mask |= missing & (SD_BUS_CREDS_CGROUP|SD_BUS_CREDS_UNIT|SD_BUS_CREDS_USER_UNIT|SD_BUS_CREDS_SLICE|SD_BUS_CREDS_SESSION|SD_BUS_CREDS_OWNER_UID); | |
938 | } | |
5b12334d LP |
939 | } |
940 | ||
941 | if (missing & SD_BUS_CREDS_AUDIT_SESSION_ID) { | |
942 | r = audit_session_from_pid(pid, &c->audit_session_id); | |
705a415f | 943 | if (r < 0) { |
15411c0c | 944 | if (r != -EOPNOTSUPP && r != -ENXIO && r != -ENOENT && r != -EPERM && r != -EACCES) |
705a415f LP |
945 | return r; |
946 | } else | |
5b12334d LP |
947 | c->mask |= SD_BUS_CREDS_AUDIT_SESSION_ID; |
948 | } | |
949 | ||
950 | if (missing & SD_BUS_CREDS_AUDIT_LOGIN_UID) { | |
951 | r = audit_loginuid_from_pid(pid, &c->audit_login_uid); | |
705a415f | 952 | if (r < 0) { |
15411c0c | 953 | if (r != -EOPNOTSUPP && r != -ENXIO && r != -ENOENT && r != -EPERM && r != -EACCES) |
705a415f LP |
954 | return r; |
955 | } else | |
5b12334d LP |
956 | c->mask |= SD_BUS_CREDS_AUDIT_LOGIN_UID; |
957 | } | |
958 | ||
959 | return 0; | |
960 | } | |
961 | ||
49b832c5 | 962 | int bus_creds_extend_by_pid(sd_bus_creds *c, uint64_t mask, sd_bus_creds **ret) { |
5b12334d LP |
963 | _cleanup_bus_creds_unref_ sd_bus_creds *n = NULL; |
964 | int r; | |
965 | ||
49b832c5 LP |
966 | assert(c); |
967 | assert(ret); | |
5b12334d | 968 | |
705a415f LP |
969 | if ((mask & ~c->mask) == 0 || (!(mask & SD_BUS_CREDS_AUGMENT))) { |
970 | /* There's already all data we need, or augmentation | |
971 | * wasn't turned on. */ | |
5b12334d LP |
972 | |
973 | *ret = sd_bus_creds_ref(c); | |
974 | return 0; | |
975 | } | |
976 | ||
977 | n = bus_creds_new(); | |
978 | if (!n) | |
979 | return -ENOMEM; | |
980 | ||
981 | /* Copy the original data over */ | |
982 | ||
983 | if (c->mask & mask & SD_BUS_CREDS_UID) { | |
984 | n->uid = c->uid; | |
985 | n->mask |= SD_BUS_CREDS_UID; | |
986 | } | |
987 | ||
705a415f LP |
988 | if (c->mask & mask & SD_BUS_CREDS_EUID) { |
989 | n->euid = c->euid; | |
990 | n->mask |= SD_BUS_CREDS_EUID; | |
991 | } | |
992 | ||
993 | if (c->mask & mask & SD_BUS_CREDS_SUID) { | |
994 | n->suid = c->suid; | |
995 | n->mask |= SD_BUS_CREDS_SUID; | |
996 | } | |
997 | ||
998 | if (c->mask & mask & SD_BUS_CREDS_FSUID) { | |
999 | n->fsuid = c->fsuid; | |
1000 | n->mask |= SD_BUS_CREDS_FSUID; | |
1001 | } | |
1002 | ||
5b12334d LP |
1003 | if (c->mask & mask & SD_BUS_CREDS_GID) { |
1004 | n->gid = c->gid; | |
1005 | n->mask |= SD_BUS_CREDS_GID; | |
1006 | } | |
1007 | ||
705a415f LP |
1008 | if (c->mask & mask & SD_BUS_CREDS_EGID) { |
1009 | n->egid = c->egid; | |
1010 | n->mask |= SD_BUS_CREDS_EGID; | |
1011 | } | |
1012 | ||
1013 | if (c->mask & mask & SD_BUS_CREDS_SGID) { | |
1014 | n->sgid = c->sgid; | |
1015 | n->mask |= SD_BUS_CREDS_SGID; | |
1016 | } | |
1017 | ||
1018 | if (c->mask & mask & SD_BUS_CREDS_FSGID) { | |
1019 | n->fsgid = c->fsgid; | |
1020 | n->mask |= SD_BUS_CREDS_FSGID; | |
1021 | } | |
1022 | ||
02581590 LP |
1023 | if (c->mask & mask & SD_BUS_CREDS_SUPPLEMENTARY_GIDS) { |
1024 | n->supplementary_gids = newdup(gid_t, c->supplementary_gids, c->n_supplementary_gids); | |
1025 | if (!n->supplementary_gids) | |
1026 | return -ENOMEM; | |
1027 | n->n_supplementary_gids = c->n_supplementary_gids; | |
1028 | n->mask |= SD_BUS_CREDS_SUPPLEMENTARY_GIDS; | |
1029 | } | |
1030 | ||
5b12334d LP |
1031 | if (c->mask & mask & SD_BUS_CREDS_PID) { |
1032 | n->pid = c->pid; | |
1033 | n->mask |= SD_BUS_CREDS_PID; | |
1034 | } | |
1035 | ||
1036 | if (c->mask & mask & SD_BUS_CREDS_TID) { | |
1037 | n->tid = c->tid; | |
1038 | n->mask |= SD_BUS_CREDS_TID; | |
1039 | } | |
1040 | ||
5b12334d LP |
1041 | if (c->mask & mask & SD_BUS_CREDS_COMM) { |
1042 | n->comm = strdup(c->comm); | |
1043 | if (!n->comm) | |
1044 | return -ENOMEM; | |
1045 | ||
1046 | n->mask |= SD_BUS_CREDS_COMM; | |
1047 | } | |
1048 | ||
1049 | if (c->mask & mask & SD_BUS_CREDS_TID_COMM) { | |
1050 | n->tid_comm = strdup(c->tid_comm); | |
1051 | if (!n->tid_comm) | |
1052 | return -ENOMEM; | |
1053 | ||
1054 | n->mask |= SD_BUS_CREDS_TID_COMM; | |
1055 | } | |
1056 | ||
1057 | if (c->mask & mask & SD_BUS_CREDS_EXE) { | |
1058 | n->exe = strdup(c->exe); | |
1059 | if (!n->exe) | |
1060 | return -ENOMEM; | |
1061 | ||
1062 | n->mask |= SD_BUS_CREDS_EXE; | |
1063 | } | |
1064 | ||
1065 | if (c->mask & mask & SD_BUS_CREDS_CMDLINE) { | |
49b832c5 | 1066 | n->cmdline = memdup(c->cmdline, c->cmdline_size); |
5b12334d LP |
1067 | if (!n->cmdline) |
1068 | return -ENOMEM; | |
1069 | ||
49b832c5 | 1070 | n->cmdline_size = c->cmdline_size; |
5b12334d LP |
1071 | n->mask |= SD_BUS_CREDS_CMDLINE; |
1072 | } | |
1073 | ||
1074 | if (c->mask & mask & (SD_BUS_CREDS_CGROUP|SD_BUS_CREDS_SESSION|SD_BUS_CREDS_UNIT|SD_BUS_CREDS_USER_UNIT|SD_BUS_CREDS_SLICE|SD_BUS_CREDS_OWNER_UID)) { | |
1075 | n->cgroup = strdup(c->cgroup); | |
1076 | if (!n->cgroup) | |
1077 | return -ENOMEM; | |
1078 | ||
751bc6ac LP |
1079 | n->cgroup_root = strdup(c->cgroup_root); |
1080 | if (!n->cgroup_root) | |
1081 | return -ENOMEM; | |
1082 | ||
5b12334d LP |
1083 | n->mask |= mask & (SD_BUS_CREDS_CGROUP|SD_BUS_CREDS_SESSION|SD_BUS_CREDS_UNIT|SD_BUS_CREDS_USER_UNIT|SD_BUS_CREDS_SLICE|SD_BUS_CREDS_OWNER_UID); |
1084 | } | |
1085 | ||
1086 | if (c->mask & mask & (SD_BUS_CREDS_EFFECTIVE_CAPS|SD_BUS_CREDS_PERMITTED_CAPS|SD_BUS_CREDS_INHERITABLE_CAPS|SD_BUS_CREDS_BOUNDING_CAPS)) { | |
34a5d5e5 | 1087 | n->capability = memdup(c->capability, DIV_ROUND_UP(cap_last_cap(), 32U) * 4 * 4); |
5b12334d LP |
1088 | if (!n->capability) |
1089 | return -ENOMEM; | |
1090 | ||
5b12334d LP |
1091 | n->mask |= c->mask & mask & (SD_BUS_CREDS_EFFECTIVE_CAPS|SD_BUS_CREDS_PERMITTED_CAPS|SD_BUS_CREDS_INHERITABLE_CAPS|SD_BUS_CREDS_BOUNDING_CAPS); |
1092 | } | |
1093 | ||
a6ede528 LP |
1094 | if (c->mask & mask & SD_BUS_CREDS_SELINUX_CONTEXT) { |
1095 | n->label = strdup(c->label); | |
1096 | if (!n->label) | |
1097 | return -ENOMEM; | |
1098 | n->mask |= SD_BUS_CREDS_SELINUX_CONTEXT; | |
1099 | } | |
1100 | ||
5b12334d LP |
1101 | if (c->mask & mask & SD_BUS_CREDS_AUDIT_SESSION_ID) { |
1102 | n->audit_session_id = c->audit_session_id; | |
1103 | n->mask |= SD_BUS_CREDS_AUDIT_SESSION_ID; | |
1104 | } | |
5b12334d LP |
1105 | if (c->mask & mask & SD_BUS_CREDS_AUDIT_LOGIN_UID) { |
1106 | n->audit_login_uid = c->audit_login_uid; | |
1107 | n->mask |= SD_BUS_CREDS_AUDIT_LOGIN_UID; | |
1108 | } | |
1109 | ||
49b832c5 LP |
1110 | if (c->mask & mask & SD_BUS_CREDS_UNIQUE_NAME) { |
1111 | n->unique_name = strdup(c->unique_name); | |
1112 | if (!n->unique_name) | |
1113 | return -ENOMEM; | |
a6ede528 | 1114 | n->mask |= SD_BUS_CREDS_UNIQUE_NAME; |
49b832c5 LP |
1115 | } |
1116 | ||
1117 | if (c->mask & mask & SD_BUS_CREDS_WELL_KNOWN_NAMES) { | |
65dae17a | 1118 | n->well_known_names = strv_copy(c->well_known_names); |
49b832c5 LP |
1119 | if (!n->well_known_names) |
1120 | return -ENOMEM; | |
a6ede528 LP |
1121 | n->mask |= SD_BUS_CREDS_WELL_KNOWN_NAMES; |
1122 | } | |
1123 | ||
1124 | if (c->mask & mask & SD_BUS_CREDS_DESCRIPTION) { | |
1125 | n->description = strdup(c->description); | |
1126 | if (!n->description) | |
1127 | return -ENOMEM; | |
1128 | n->mask |= SD_BUS_CREDS_DESCRIPTION; | |
49b832c5 LP |
1129 | } |
1130 | ||
5b12334d LP |
1131 | /* Get more data */ |
1132 | ||
1133 | r = bus_creds_add_more(n, mask, | |
1134 | c->mask & SD_BUS_CREDS_PID ? c->pid : 0, | |
1135 | c->mask & SD_BUS_CREDS_TID ? c->tid : 0); | |
1136 | if (r < 0) | |
1137 | return r; | |
1138 | ||
1139 | *ret = n; | |
1140 | n = NULL; | |
1141 | return 0; | |
1142 | } |