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Commit | Line | Data |
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1b992147 LP |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2014 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 | ||
3f6fd1ba | 22 | #include <getopt.h> |
1b992147 | 23 | #include <grp.h> |
9ab315cc | 24 | #include <gshadow.h> |
3f6fd1ba LP |
25 | #include <pwd.h> |
26 | #include <shadow.h> | |
932ad62b | 27 | #include <utmp.h> |
1b992147 | 28 | |
1b992147 LP |
29 | #include "conf-files.h" |
30 | #include "copy.h" | |
f7f628b5 | 31 | #include "fileio-label.h" |
6482f626 | 32 | #include "formats-util.h" |
3f6fd1ba LP |
33 | #include "hashmap.h" |
34 | #include "path-util.h" | |
35 | #include "selinux-util.h" | |
36 | #include "specifier.h" | |
37 | #include "strv.h" | |
38 | #include "uid-range.h" | |
39 | #include "utf8.h" | |
40 | #include "util.h" | |
c02e7b1e | 41 | #include "smack-util.h" |
1b992147 LP |
42 | |
43 | typedef enum ItemType { | |
44 | ADD_USER = 'u', | |
45 | ADD_GROUP = 'g', | |
a12b0cc3 | 46 | ADD_MEMBER = 'm', |
8530dc44 | 47 | ADD_RANGE = 'r', |
1b992147 LP |
48 | } ItemType; |
49 | typedef struct Item { | |
50 | ItemType type; | |
51 | ||
52 | char *name; | |
53 | char *uid_path; | |
54 | char *gid_path; | |
55 | char *description; | |
7629889c | 56 | char *home; |
1b992147 LP |
57 | |
58 | gid_t gid; | |
59 | uid_t uid; | |
60 | ||
61 | bool gid_set:1; | |
62 | bool uid_set:1; | |
63 | ||
c1b6b04f KS |
64 | bool todo_user:1; |
65 | bool todo_group:1; | |
1b992147 LP |
66 | } Item; |
67 | ||
68 | static char *arg_root = NULL; | |
69 | ||
7f0a55d4 | 70 | static const char conf_file_dirs[] = CONF_DIRS_NULSTR("sysusers"); |
1b992147 LP |
71 | |
72 | static Hashmap *users = NULL, *groups = NULL; | |
73 | static Hashmap *todo_uids = NULL, *todo_gids = NULL; | |
a12b0cc3 | 74 | static Hashmap *members = NULL; |
1b992147 LP |
75 | |
76 | static Hashmap *database_uid = NULL, *database_user = NULL; | |
77 | static Hashmap *database_gid = NULL, *database_group = NULL; | |
78 | ||
fed1e721 | 79 | static uid_t search_uid = UID_INVALID; |
8530dc44 LP |
80 | static UidRange *uid_range = NULL; |
81 | static unsigned n_uid_range = 0; | |
1b992147 | 82 | |
1b992147 LP |
83 | static int load_user_database(void) { |
84 | _cleanup_fclose_ FILE *f = NULL; | |
85 | const char *passwd_path; | |
86 | struct passwd *pw; | |
87 | int r; | |
88 | ||
1d13f648 | 89 | passwd_path = prefix_roota(arg_root, "/etc/passwd"); |
1b992147 LP |
90 | f = fopen(passwd_path, "re"); |
91 | if (!f) | |
92 | return errno == ENOENT ? 0 : -errno; | |
93 | ||
d5099efc | 94 | r = hashmap_ensure_allocated(&database_user, &string_hash_ops); |
1b992147 LP |
95 | if (r < 0) |
96 | return r; | |
97 | ||
d5099efc | 98 | r = hashmap_ensure_allocated(&database_uid, NULL); |
1b992147 LP |
99 | if (r < 0) |
100 | return r; | |
101 | ||
102 | errno = 0; | |
103 | while ((pw = fgetpwent(f))) { | |
104 | char *n; | |
105 | int k, q; | |
106 | ||
107 | n = strdup(pw->pw_name); | |
108 | if (!n) | |
109 | return -ENOMEM; | |
110 | ||
111 | k = hashmap_put(database_user, n, UID_TO_PTR(pw->pw_uid)); | |
112 | if (k < 0 && k != -EEXIST) { | |
113 | free(n); | |
114 | return k; | |
115 | } | |
116 | ||
117 | q = hashmap_put(database_uid, UID_TO_PTR(pw->pw_uid), n); | |
118 | if (q < 0 && q != -EEXIST) { | |
119 | if (k < 0) | |
120 | free(n); | |
121 | return q; | |
122 | } | |
123 | ||
124 | if (q < 0 && k < 0) | |
125 | free(n); | |
126 | ||
127 | errno = 0; | |
128 | } | |
129 | if (!IN_SET(errno, 0, ENOENT)) | |
130 | return -errno; | |
131 | ||
132 | return 0; | |
133 | } | |
134 | ||
135 | static int load_group_database(void) { | |
136 | _cleanup_fclose_ FILE *f = NULL; | |
137 | const char *group_path; | |
138 | struct group *gr; | |
139 | int r; | |
140 | ||
1d13f648 | 141 | group_path = prefix_roota(arg_root, "/etc/group"); |
1b992147 LP |
142 | f = fopen(group_path, "re"); |
143 | if (!f) | |
144 | return errno == ENOENT ? 0 : -errno; | |
145 | ||
d5099efc | 146 | r = hashmap_ensure_allocated(&database_group, &string_hash_ops); |
1b992147 LP |
147 | if (r < 0) |
148 | return r; | |
149 | ||
d5099efc | 150 | r = hashmap_ensure_allocated(&database_gid, NULL); |
1b992147 LP |
151 | if (r < 0) |
152 | return r; | |
153 | ||
154 | errno = 0; | |
155 | while ((gr = fgetgrent(f))) { | |
156 | char *n; | |
157 | int k, q; | |
158 | ||
159 | n = strdup(gr->gr_name); | |
160 | if (!n) | |
161 | return -ENOMEM; | |
162 | ||
163 | k = hashmap_put(database_group, n, GID_TO_PTR(gr->gr_gid)); | |
164 | if (k < 0 && k != -EEXIST) { | |
165 | free(n); | |
166 | return k; | |
167 | } | |
168 | ||
169 | q = hashmap_put(database_gid, GID_TO_PTR(gr->gr_gid), n); | |
170 | if (q < 0 && q != -EEXIST) { | |
171 | if (k < 0) | |
172 | free(n); | |
173 | return q; | |
174 | } | |
175 | ||
176 | if (q < 0 && k < 0) | |
177 | free(n); | |
178 | ||
179 | errno = 0; | |
180 | } | |
181 | if (!IN_SET(errno, 0, ENOENT)) | |
182 | return -errno; | |
183 | ||
184 | return 0; | |
185 | } | |
186 | ||
9f1c1940 ZJS |
187 | static int make_backup(const char *target, const char *x) { |
188 | _cleanup_close_ int src = -1; | |
189 | _cleanup_fclose_ FILE *dst = NULL; | |
1b992147 LP |
190 | char *backup, *temp; |
191 | struct timespec ts[2]; | |
192 | struct stat st; | |
193 | int r; | |
194 | ||
195 | src = open(x, O_RDONLY|O_CLOEXEC|O_NOCTTY); | |
196 | if (src < 0) { | |
197 | if (errno == ENOENT) /* No backup necessary... */ | |
198 | return 0; | |
199 | ||
200 | return -errno; | |
201 | } | |
202 | ||
203 | if (fstat(src, &st) < 0) | |
204 | return -errno; | |
205 | ||
9f1c1940 ZJS |
206 | r = fopen_temporary_label(target, x, &dst, &temp); |
207 | if (r < 0) | |
208 | return r; | |
1b992147 | 209 | |
59f448cf | 210 | r = copy_bytes(src, fileno(dst), (uint64_t) -1, true); |
1b992147 LP |
211 | if (r < 0) |
212 | goto fail; | |
213 | ||
9f1c1940 ZJS |
214 | /* Don't fail on chmod() or chown(). If it stays owned by us |
215 | * and/or unreadable by others, then it isn't too bad... */ | |
216 | ||
63c372cb | 217 | backup = strjoina(x, "-"); |
9f1c1940 | 218 | |
1b992147 | 219 | /* Copy over the access mask */ |
9f1c1940 | 220 | if (fchmod(fileno(dst), st.st_mode & 07777) < 0) |
56f64d95 | 221 | log_warning_errno(errno, "Failed to change mode on %s: %m", backup); |
1b992147 | 222 | |
9f1c1940 | 223 | if (fchown(fileno(dst), st.st_uid, st.st_gid)< 0) |
56f64d95 | 224 | log_warning_errno(errno, "Failed to change ownership of %s: %m", backup); |
1b992147 LP |
225 | |
226 | ts[0] = st.st_atim; | |
227 | ts[1] = st.st_mtim; | |
f06863bd | 228 | if (futimens(fileno(dst), ts) < 0) |
56f64d95 | 229 | log_warning_errno(errno, "Failed to fix access and modification time of %s: %m", backup); |
1b992147 | 230 | |
1b992147 LP |
231 | if (rename(temp, backup) < 0) |
232 | goto fail; | |
233 | ||
234 | return 0; | |
235 | ||
236 | fail: | |
237 | unlink(temp); | |
238 | return r; | |
239 | } | |
240 | ||
a12b0cc3 LP |
241 | static int putgrent_with_members(const struct group *gr, FILE *group) { |
242 | char **a; | |
243 | ||
244 | assert(gr); | |
245 | assert(group); | |
246 | ||
247 | a = hashmap_get(members, gr->gr_name); | |
248 | if (a) { | |
249 | _cleanup_strv_free_ char **l = NULL; | |
250 | bool added = false; | |
251 | char **i; | |
252 | ||
253 | l = strv_copy(gr->gr_mem); | |
254 | if (!l) | |
255 | return -ENOMEM; | |
256 | ||
257 | STRV_FOREACH(i, a) { | |
258 | if (strv_find(l, *i)) | |
259 | continue; | |
260 | ||
261 | if (strv_extend(&l, *i) < 0) | |
262 | return -ENOMEM; | |
263 | ||
264 | added = true; | |
265 | } | |
266 | ||
267 | if (added) { | |
268 | struct group t; | |
269 | ||
270 | strv_uniq(l); | |
271 | strv_sort(l); | |
272 | ||
273 | t = *gr; | |
274 | t.gr_mem = l; | |
275 | ||
276 | errno = 0; | |
277 | if (putgrent(&t, group) != 0) | |
278 | return errno ? -errno : -EIO; | |
279 | ||
280 | return 1; | |
281 | } | |
282 | } | |
283 | ||
284 | errno = 0; | |
285 | if (putgrent(gr, group) != 0) | |
286 | return errno ? -errno : -EIO; | |
287 | ||
288 | return 0; | |
289 | } | |
290 | ||
9ab315cc LP |
291 | static int putsgent_with_members(const struct sgrp *sg, FILE *gshadow) { |
292 | char **a; | |
293 | ||
294 | assert(sg); | |
295 | assert(gshadow); | |
296 | ||
297 | a = hashmap_get(members, sg->sg_namp); | |
298 | if (a) { | |
299 | _cleanup_strv_free_ char **l = NULL; | |
300 | bool added = false; | |
301 | char **i; | |
302 | ||
303 | l = strv_copy(sg->sg_mem); | |
304 | if (!l) | |
305 | return -ENOMEM; | |
306 | ||
307 | STRV_FOREACH(i, a) { | |
308 | if (strv_find(l, *i)) | |
309 | continue; | |
310 | ||
311 | if (strv_extend(&l, *i) < 0) | |
312 | return -ENOMEM; | |
313 | ||
314 | added = true; | |
315 | } | |
316 | ||
317 | if (added) { | |
318 | struct sgrp t; | |
319 | ||
320 | strv_uniq(l); | |
321 | strv_sort(l); | |
322 | ||
323 | t = *sg; | |
324 | t.sg_mem = l; | |
325 | ||
326 | errno = 0; | |
327 | if (putsgent(&t, gshadow) != 0) | |
328 | return errno ? -errno : -EIO; | |
329 | ||
330 | return 1; | |
331 | } | |
332 | } | |
333 | ||
334 | errno = 0; | |
335 | if (putsgent(sg, gshadow) != 0) | |
336 | return errno ? -errno : -EIO; | |
337 | ||
338 | return 0; | |
339 | } | |
340 | ||
fff19499 LP |
341 | static int sync_rights(FILE *from, FILE *to) { |
342 | struct stat st; | |
343 | ||
344 | if (fstat(fileno(from), &st) < 0) | |
345 | return -errno; | |
346 | ||
347 | if (fchmod(fileno(to), st.st_mode & 07777) < 0) | |
348 | return -errno; | |
349 | ||
350 | if (fchown(fileno(to), st.st_uid, st.st_gid) < 0) | |
351 | return -errno; | |
352 | ||
353 | return 0; | |
354 | } | |
355 | ||
c02e7b1e SW |
356 | static int rename_and_apply_smack(const char *temp_path, const char *dest_path) { |
357 | int r = 0; | |
358 | if (rename(temp_path, dest_path) < 0) | |
359 | return -errno; | |
360 | ||
361 | #ifdef SMACK_RUN_LABEL | |
362 | r = mac_smack_apply(dest_path, SMACK_ATTR_ACCESS, SMACK_FLOOR_LABEL); | |
363 | if (r < 0) | |
364 | return r; | |
365 | #endif | |
366 | return r; | |
367 | } | |
368 | ||
1b992147 LP |
369 | static int write_files(void) { |
370 | ||
9ab315cc LP |
371 | _cleanup_fclose_ FILE *passwd = NULL, *group = NULL, *shadow = NULL, *gshadow = NULL; |
372 | _cleanup_free_ char *passwd_tmp = NULL, *group_tmp = NULL, *shadow_tmp = NULL, *gshadow_tmp = NULL; | |
373 | const char *passwd_path = NULL, *group_path = NULL, *shadow_path = NULL, *gshadow_path = NULL; | |
a12b0cc3 | 374 | bool group_changed = false; |
1b992147 LP |
375 | Iterator iterator; |
376 | Item *i; | |
377 | int r; | |
378 | ||
a12b0cc3 | 379 | if (hashmap_size(todo_gids) > 0 || hashmap_size(members) > 0) { |
1b992147 LP |
380 | _cleanup_fclose_ FILE *original = NULL; |
381 | ||
9ab315cc | 382 | /* First we update the actual group list file */ |
1d13f648 | 383 | group_path = prefix_roota(arg_root, "/etc/group"); |
f7f628b5 | 384 | r = fopen_temporary_label("/etc/group", group_path, &group, &group_tmp); |
1b992147 LP |
385 | if (r < 0) |
386 | goto finish; | |
387 | ||
1b992147 LP |
388 | original = fopen(group_path, "re"); |
389 | if (original) { | |
390 | struct group *gr; | |
391 | ||
fff19499 LP |
392 | r = sync_rights(original, group); |
393 | if (r < 0) | |
e3c72c21 | 394 | goto finish; |
e3c72c21 | 395 | |
1b992147 LP |
396 | errno = 0; |
397 | while ((gr = fgetgrent(original))) { | |
398 | /* Safety checks against name and GID | |
399 | * collisions. Normally, this should | |
400 | * be unnecessary, but given that we | |
401 | * look at the entries anyway here, | |
402 | * let's make an extra verification | |
403 | * step that we don't generate | |
404 | * duplicate entries. */ | |
405 | ||
406 | i = hashmap_get(groups, gr->gr_name); | |
c1b6b04f | 407 | if (i && i->todo_group) { |
1b992147 LP |
408 | r = -EEXIST; |
409 | goto finish; | |
410 | } | |
411 | ||
412 | if (hashmap_contains(todo_gids, GID_TO_PTR(gr->gr_gid))) { | |
413 | r = -EEXIST; | |
414 | goto finish; | |
415 | } | |
416 | ||
a12b0cc3 LP |
417 | r = putgrent_with_members(gr, group); |
418 | if (r < 0) | |
1b992147 | 419 | goto finish; |
a12b0cc3 LP |
420 | if (r > 0) |
421 | group_changed = true; | |
1b992147 LP |
422 | |
423 | errno = 0; | |
424 | } | |
425 | if (!IN_SET(errno, 0, ENOENT)) { | |
426 | r = -errno; | |
427 | goto finish; | |
428 | } | |
429 | ||
430 | } else if (errno != ENOENT) { | |
431 | r = -errno; | |
432 | goto finish; | |
e3c72c21 CG |
433 | } else if (fchmod(fileno(group), 0644) < 0) { |
434 | r = -errno; | |
435 | goto finish; | |
1b992147 LP |
436 | } |
437 | ||
438 | HASHMAP_FOREACH(i, todo_gids, iterator) { | |
439 | struct group n = { | |
440 | .gr_name = i->name, | |
441 | .gr_gid = i->gid, | |
442 | .gr_passwd = (char*) "x", | |
443 | }; | |
444 | ||
a12b0cc3 LP |
445 | r = putgrent_with_members(&n, group); |
446 | if (r < 0) | |
1b992147 | 447 | goto finish; |
a12b0cc3 LP |
448 | |
449 | group_changed = true; | |
1b992147 LP |
450 | } |
451 | ||
452 | r = fflush_and_check(group); | |
453 | if (r < 0) | |
454 | goto finish; | |
9ab315cc LP |
455 | |
456 | if (original) { | |
457 | fclose(original); | |
458 | original = NULL; | |
459 | } | |
460 | ||
461 | /* OK, now also update the shadow file for the group list */ | |
1d13f648 | 462 | gshadow_path = prefix_roota(arg_root, "/etc/gshadow"); |
9ab315cc LP |
463 | r = fopen_temporary_label("/etc/gshadow", gshadow_path, &gshadow, &gshadow_tmp); |
464 | if (r < 0) | |
465 | goto finish; | |
466 | ||
9ab315cc LP |
467 | original = fopen(gshadow_path, "re"); |
468 | if (original) { | |
469 | struct sgrp *sg; | |
470 | ||
fff19499 LP |
471 | r = sync_rights(original, gshadow); |
472 | if (r < 0) | |
e3c72c21 | 473 | goto finish; |
e3c72c21 | 474 | |
9ab315cc LP |
475 | errno = 0; |
476 | while ((sg = fgetsgent(original))) { | |
477 | ||
478 | i = hashmap_get(groups, sg->sg_namp); | |
479 | if (i && i->todo_group) { | |
480 | r = -EEXIST; | |
481 | goto finish; | |
482 | } | |
483 | ||
484 | r = putsgent_with_members(sg, gshadow); | |
485 | if (r < 0) | |
486 | goto finish; | |
487 | if (r > 0) | |
488 | group_changed = true; | |
489 | ||
490 | errno = 0; | |
491 | } | |
492 | if (!IN_SET(errno, 0, ENOENT)) { | |
493 | r = -errno; | |
494 | goto finish; | |
495 | } | |
496 | ||
497 | } else if (errno != ENOENT) { | |
498 | r = -errno; | |
499 | goto finish; | |
e3c72c21 CG |
500 | } else if (fchmod(fileno(gshadow), 0000) < 0) { |
501 | r = -errno; | |
502 | goto finish; | |
9ab315cc LP |
503 | } |
504 | ||
505 | HASHMAP_FOREACH(i, todo_gids, iterator) { | |
506 | struct sgrp n = { | |
507 | .sg_namp = i->name, | |
508 | .sg_passwd = (char*) "!!", | |
509 | }; | |
510 | ||
511 | r = putsgent_with_members(&n, gshadow); | |
512 | if (r < 0) | |
513 | goto finish; | |
514 | ||
515 | group_changed = true; | |
516 | } | |
517 | ||
518 | r = fflush_and_check(gshadow); | |
519 | if (r < 0) | |
520 | goto finish; | |
1b992147 LP |
521 | } |
522 | ||
523 | if (hashmap_size(todo_uids) > 0) { | |
524 | _cleanup_fclose_ FILE *original = NULL; | |
9ab315cc | 525 | long lstchg; |
1b992147 | 526 | |
9ab315cc | 527 | /* First we update the user database itself */ |
1d13f648 | 528 | passwd_path = prefix_roota(arg_root, "/etc/passwd"); |
f7f628b5 | 529 | r = fopen_temporary_label("/etc/passwd", passwd_path, &passwd, &passwd_tmp); |
1b992147 LP |
530 | if (r < 0) |
531 | goto finish; | |
532 | ||
1b992147 LP |
533 | original = fopen(passwd_path, "re"); |
534 | if (original) { | |
535 | struct passwd *pw; | |
536 | ||
fff19499 LP |
537 | r = sync_rights(original, passwd); |
538 | if (r < 0) | |
e3c72c21 | 539 | goto finish; |
e3c72c21 | 540 | |
1b992147 LP |
541 | errno = 0; |
542 | while ((pw = fgetpwent(original))) { | |
543 | ||
544 | i = hashmap_get(users, pw->pw_name); | |
c1b6b04f | 545 | if (i && i->todo_user) { |
1b992147 LP |
546 | r = -EEXIST; |
547 | goto finish; | |
548 | } | |
549 | ||
550 | if (hashmap_contains(todo_uids, UID_TO_PTR(pw->pw_uid))) { | |
551 | r = -EEXIST; | |
552 | goto finish; | |
553 | } | |
554 | ||
a12b0cc3 | 555 | errno = 0; |
1b992147 | 556 | if (putpwent(pw, passwd) < 0) { |
a12b0cc3 | 557 | r = errno ? -errno : -EIO; |
1b992147 LP |
558 | goto finish; |
559 | } | |
560 | ||
561 | errno = 0; | |
562 | } | |
563 | if (!IN_SET(errno, 0, ENOENT)) { | |
564 | r = -errno; | |
565 | goto finish; | |
566 | } | |
567 | ||
568 | } else if (errno != ENOENT) { | |
569 | r = -errno; | |
570 | goto finish; | |
e3c72c21 CG |
571 | } else if (fchmod(fileno(passwd), 0644) < 0) { |
572 | r = -errno; | |
573 | goto finish; | |
1b992147 LP |
574 | } |
575 | ||
576 | HASHMAP_FOREACH(i, todo_uids, iterator) { | |
577 | struct passwd n = { | |
578 | .pw_name = i->name, | |
579 | .pw_uid = i->uid, | |
580 | .pw_gid = i->gid, | |
581 | .pw_gecos = i->description, | |
7629889c LP |
582 | |
583 | /* "x" means the password is stored in | |
584 | * the shadow file */ | |
1b992147 | 585 | .pw_passwd = (char*) "x", |
1b992147 | 586 | |
7629889c LP |
587 | /* We default to the root directory as home */ |
588 | .pw_dir = i->home ? i->home : (char*) "/", | |
589 | ||
590 | /* Initialize the shell to nologin, | |
591 | * with one exception: for root we | |
592 | * patch in something special */ | |
593 | .pw_shell = i->uid == 0 ? (char*) "/bin/sh" : (char*) "/sbin/nologin", | |
594 | }; | |
1b992147 | 595 | |
a12b0cc3 LP |
596 | errno = 0; |
597 | if (putpwent(&n, passwd) != 0) { | |
598 | r = errno ? -errno : -EIO; | |
1b992147 LP |
599 | goto finish; |
600 | } | |
601 | } | |
602 | ||
603 | r = fflush_and_check(passwd); | |
604 | if (r < 0) | |
605 | goto finish; | |
1b992147 | 606 | |
9ab315cc LP |
607 | if (original) { |
608 | fclose(original); | |
609 | original = NULL; | |
610 | } | |
611 | ||
612 | /* The we update the shadow database */ | |
1d13f648 | 613 | shadow_path = prefix_roota(arg_root, "/etc/shadow"); |
9ab315cc | 614 | r = fopen_temporary_label("/etc/shadow", shadow_path, &shadow, &shadow_tmp); |
1b992147 LP |
615 | if (r < 0) |
616 | goto finish; | |
9ab315cc | 617 | |
c5abf225 IS |
618 | lstchg = (long) (now(CLOCK_REALTIME) / USEC_PER_DAY); |
619 | ||
9ab315cc LP |
620 | original = fopen(shadow_path, "re"); |
621 | if (original) { | |
622 | struct spwd *sp; | |
623 | ||
fff19499 LP |
624 | r = sync_rights(original, shadow); |
625 | if (r < 0) | |
e3c72c21 | 626 | goto finish; |
e3c72c21 | 627 | |
9ab315cc LP |
628 | errno = 0; |
629 | while ((sp = fgetspent(original))) { | |
630 | ||
631 | i = hashmap_get(users, sp->sp_namp); | |
632 | if (i && i->todo_user) { | |
c5abf225 IS |
633 | /* we will update the existing entry */ |
634 | sp->sp_lstchg = lstchg; | |
635 | ||
636 | /* only the /etc/shadow stage is left, so we can | |
637 | * safely remove the item from the todo set */ | |
638 | i->todo_user = false; | |
639 | hashmap_remove(todo_uids, UID_TO_PTR(i->uid)); | |
9ab315cc LP |
640 | } |
641 | ||
642 | errno = 0; | |
643 | if (putspent(sp, shadow) < 0) { | |
644 | r = errno ? -errno : -EIO; | |
645 | goto finish; | |
646 | } | |
647 | ||
648 | errno = 0; | |
649 | } | |
650 | if (!IN_SET(errno, 0, ENOENT)) { | |
651 | r = -errno; | |
652 | goto finish; | |
653 | } | |
654 | } else if (errno != ENOENT) { | |
655 | r = -errno; | |
656 | goto finish; | |
e3c72c21 CG |
657 | } else if (fchmod(fileno(shadow), 0000) < 0) { |
658 | r = -errno; | |
659 | goto finish; | |
9ab315cc LP |
660 | } |
661 | ||
9ab315cc LP |
662 | HASHMAP_FOREACH(i, todo_uids, iterator) { |
663 | struct spwd n = { | |
664 | .sp_namp = i->name, | |
665 | .sp_pwdp = (char*) "!!", | |
666 | .sp_lstchg = lstchg, | |
667 | .sp_min = -1, | |
668 | .sp_max = -1, | |
669 | .sp_warn = -1, | |
670 | .sp_inact = -1, | |
671 | .sp_expire = -1, | |
672 | .sp_flag = (unsigned long) -1, /* this appears to be what everybody does ... */ | |
673 | }; | |
674 | ||
675 | errno = 0; | |
676 | if (putspent(&n, shadow) != 0) { | |
677 | r = errno ? -errno : -EIO; | |
678 | goto finish; | |
679 | } | |
680 | } | |
681 | ||
682 | r = fflush_and_check(shadow); | |
683 | if (r < 0) | |
684 | goto finish; | |
685 | } | |
686 | ||
687 | /* Make a backup of the old files */ | |
688 | if (group_changed) { | |
689 | if (group) { | |
690 | r = make_backup("/etc/group", group_path); | |
691 | if (r < 0) | |
692 | goto finish; | |
693 | } | |
694 | if (gshadow) { | |
695 | r = make_backup("/etc/gshadow", gshadow_path); | |
696 | if (r < 0) | |
697 | goto finish; | |
698 | } | |
1b992147 LP |
699 | } |
700 | ||
701 | if (passwd) { | |
9f1c1940 | 702 | r = make_backup("/etc/passwd", passwd_path); |
1b992147 LP |
703 | if (r < 0) |
704 | goto finish; | |
705 | } | |
9ab315cc LP |
706 | if (shadow) { |
707 | r = make_backup("/etc/shadow", shadow_path); | |
708 | if (r < 0) | |
709 | goto finish; | |
710 | } | |
1b992147 LP |
711 | |
712 | /* And make the new files count */ | |
9ab315cc LP |
713 | if (group_changed) { |
714 | if (group) { | |
c02e7b1e SW |
715 | r = rename_and_apply_smack(group_tmp, group_path); |
716 | if (r < 0) | |
9ab315cc | 717 | goto finish; |
9ab315cc | 718 | |
97b11eed | 719 | group_tmp = mfree(group_tmp); |
1b992147 | 720 | } |
9ab315cc | 721 | if (gshadow) { |
c02e7b1e SW |
722 | r = rename_and_apply_smack(gshadow_tmp, gshadow_path); |
723 | if (r < 0) | |
9ab315cc | 724 | goto finish; |
1b992147 | 725 | |
97b11eed | 726 | gshadow_tmp = mfree(gshadow_tmp); |
9ab315cc | 727 | } |
1b992147 LP |
728 | } |
729 | ||
730 | if (passwd) { | |
c02e7b1e SW |
731 | r = rename_and_apply_smack(passwd_tmp, passwd_path); |
732 | if (r < 0) | |
1b992147 | 733 | goto finish; |
1b992147 | 734 | |
97b11eed | 735 | passwd_tmp = mfree(passwd_tmp); |
1b992147 | 736 | } |
9ab315cc | 737 | if (shadow) { |
c02e7b1e SW |
738 | r = rename_and_apply_smack(shadow_tmp, shadow_path); |
739 | if (r < 0) | |
9ab315cc | 740 | goto finish; |
9ab315cc | 741 | |
97b11eed | 742 | shadow_tmp = mfree(shadow_tmp); |
9ab315cc | 743 | } |
1b992147 | 744 | |
a12b0cc3 | 745 | r = 0; |
1b992147 LP |
746 | |
747 | finish: | |
a12b0cc3 LP |
748 | if (passwd_tmp) |
749 | unlink(passwd_tmp); | |
9ab315cc LP |
750 | if (shadow_tmp) |
751 | unlink(shadow_tmp); | |
a12b0cc3 LP |
752 | if (group_tmp) |
753 | unlink(group_tmp); | |
9ab315cc LP |
754 | if (gshadow_tmp) |
755 | unlink(gshadow_tmp); | |
1b992147 LP |
756 | |
757 | return r; | |
758 | } | |
759 | ||
760 | static int uid_is_ok(uid_t uid, const char *name) { | |
761 | struct passwd *p; | |
762 | struct group *g; | |
763 | const char *n; | |
764 | Item *i; | |
765 | ||
766 | /* Let's see if we already have assigned the UID a second time */ | |
767 | if (hashmap_get(todo_uids, UID_TO_PTR(uid))) | |
768 | return 0; | |
769 | ||
770 | /* Try to avoid using uids that are already used by a group | |
771 | * that doesn't have the same name as our new user. */ | |
772 | i = hashmap_get(todo_gids, GID_TO_PTR(uid)); | |
773 | if (i && !streq(i->name, name)) | |
774 | return 0; | |
775 | ||
776 | /* Let's check the files directly */ | |
777 | if (hashmap_contains(database_uid, UID_TO_PTR(uid))) | |
778 | return 0; | |
779 | ||
780 | n = hashmap_get(database_gid, GID_TO_PTR(uid)); | |
781 | if (n && !streq(n, name)) | |
782 | return 0; | |
783 | ||
784 | /* Let's also check via NSS, to avoid UID clashes over LDAP and such, just in case */ | |
785 | if (!arg_root) { | |
786 | errno = 0; | |
787 | p = getpwuid(uid); | |
788 | if (p) | |
789 | return 0; | |
b0284aba | 790 | if (!IN_SET(errno, 0, ENOENT)) |
1b992147 LP |
791 | return -errno; |
792 | ||
793 | errno = 0; | |
794 | g = getgrgid((gid_t) uid); | |
795 | if (g) { | |
796 | if (!streq(g->gr_name, name)) | |
797 | return 0; | |
b0284aba | 798 | } else if (!IN_SET(errno, 0, ENOENT)) |
1b992147 LP |
799 | return -errno; |
800 | } | |
801 | ||
802 | return 1; | |
803 | } | |
804 | ||
805 | static int root_stat(const char *p, struct stat *st) { | |
806 | const char *fix; | |
807 | ||
1d13f648 | 808 | fix = prefix_roota(arg_root, p); |
1b992147 LP |
809 | if (stat(fix, st) < 0) |
810 | return -errno; | |
811 | ||
812 | return 0; | |
813 | } | |
814 | ||
815 | static int read_id_from_file(Item *i, uid_t *_uid, gid_t *_gid) { | |
816 | struct stat st; | |
817 | bool found_uid = false, found_gid = false; | |
56d21cde PDS |
818 | uid_t uid = 0; |
819 | gid_t gid = 0; | |
1b992147 LP |
820 | |
821 | assert(i); | |
822 | ||
823 | /* First, try to get the gid directly */ | |
824 | if (_gid && i->gid_path && root_stat(i->gid_path, &st) >= 0) { | |
825 | gid = st.st_gid; | |
826 | found_gid = true; | |
827 | } | |
828 | ||
829 | /* Then, try to get the uid directly */ | |
830 | if ((_uid || (_gid && !found_gid)) | |
831 | && i->uid_path | |
832 | && root_stat(i->uid_path, &st) >= 0) { | |
833 | ||
834 | uid = st.st_uid; | |
835 | found_uid = true; | |
836 | ||
837 | /* If we need the gid, but had no success yet, also derive it from the uid path */ | |
838 | if (_gid && !found_gid) { | |
839 | gid = st.st_gid; | |
840 | found_gid = true; | |
841 | } | |
842 | } | |
843 | ||
844 | /* If that didn't work yet, then let's reuse the gid as uid */ | |
845 | if (_uid && !found_uid && i->gid_path) { | |
846 | ||
847 | if (found_gid) { | |
848 | uid = (uid_t) gid; | |
849 | found_uid = true; | |
850 | } else if (root_stat(i->gid_path, &st) >= 0) { | |
851 | uid = (uid_t) st.st_gid; | |
852 | found_uid = true; | |
853 | } | |
854 | } | |
855 | ||
856 | if (_uid) { | |
857 | if (!found_uid) | |
858 | return 0; | |
859 | ||
860 | *_uid = uid; | |
861 | } | |
862 | ||
863 | if (_gid) { | |
864 | if (!found_gid) | |
865 | return 0; | |
866 | ||
867 | *_gid = gid; | |
868 | } | |
869 | ||
870 | return 1; | |
871 | } | |
872 | ||
873 | static int add_user(Item *i) { | |
874 | void *z; | |
875 | int r; | |
876 | ||
877 | assert(i); | |
878 | ||
879 | /* Check the database directly */ | |
880 | z = hashmap_get(database_user, i->name); | |
881 | if (z) { | |
882 | log_debug("User %s already exists.", i->name); | |
c1b6b04f | 883 | i->uid = PTR_TO_UID(z); |
1b992147 LP |
884 | i->uid_set = true; |
885 | return 0; | |
886 | } | |
887 | ||
888 | if (!arg_root) { | |
889 | struct passwd *p; | |
1b992147 LP |
890 | |
891 | /* Also check NSS */ | |
892 | errno = 0; | |
893 | p = getpwnam(i->name); | |
894 | if (p) { | |
895 | log_debug("User %s already exists.", i->name); | |
896 | i->uid = p->pw_uid; | |
897 | i->uid_set = true; | |
898 | ||
2fc09a9c DM |
899 | r = free_and_strdup(&i->description, p->pw_gecos); |
900 | if (r < 0) | |
901 | return log_oom(); | |
902 | ||
1b992147 LP |
903 | return 0; |
904 | } | |
4a62c710 MS |
905 | if (!IN_SET(errno, 0, ENOENT)) |
906 | return log_error_errno(errno, "Failed to check if user %s already exists: %m", i->name); | |
1b992147 LP |
907 | } |
908 | ||
909 | /* Try to use the suggested numeric uid */ | |
910 | if (i->uid_set) { | |
911 | r = uid_is_ok(i->uid, i->name); | |
f647962d MS |
912 | if (r < 0) |
913 | return log_error_errno(r, "Failed to verify uid " UID_FMT ": %m", i->uid); | |
1b992147 LP |
914 | if (r == 0) { |
915 | log_debug("Suggested user ID " UID_FMT " for %s already used.", i->uid, i->name); | |
916 | i->uid_set = false; | |
917 | } | |
918 | } | |
919 | ||
920 | /* If that didn't work, try to read it from the specified path */ | |
921 | if (!i->uid_set) { | |
922 | uid_t c; | |
923 | ||
924 | if (read_id_from_file(i, &c, NULL) > 0) { | |
925 | ||
8530dc44 | 926 | if (c <= 0 || !uid_range_contains(uid_range, n_uid_range, c)) |
1b992147 LP |
927 | log_debug("User ID " UID_FMT " of file not suitable for %s.", c, i->name); |
928 | else { | |
929 | r = uid_is_ok(c, i->name); | |
f647962d MS |
930 | if (r < 0) |
931 | return log_error_errno(r, "Failed to verify uid " UID_FMT ": %m", i->uid); | |
932 | else if (r > 0) { | |
1b992147 LP |
933 | i->uid = c; |
934 | i->uid_set = true; | |
935 | } else | |
936 | log_debug("User ID " UID_FMT " of file for %s is already used.", c, i->name); | |
937 | } | |
938 | } | |
939 | } | |
940 | ||
941 | /* Otherwise try to reuse the group ID */ | |
942 | if (!i->uid_set && i->gid_set) { | |
943 | r = uid_is_ok((uid_t) i->gid, i->name); | |
f647962d MS |
944 | if (r < 0) |
945 | return log_error_errno(r, "Failed to verify uid " UID_FMT ": %m", i->uid); | |
1b992147 LP |
946 | if (r > 0) { |
947 | i->uid = (uid_t) i->gid; | |
948 | i->uid_set = true; | |
949 | } | |
950 | } | |
951 | ||
952 | /* And if that didn't work either, let's try to find a free one */ | |
953 | if (!i->uid_set) { | |
8530dc44 LP |
954 | for (;;) { |
955 | r = uid_range_next_lower(uid_range, n_uid_range, &search_uid); | |
956 | if (r < 0) { | |
957 | log_error("No free user ID available for %s.", i->name); | |
958 | return r; | |
959 | } | |
1b992147 LP |
960 | |
961 | r = uid_is_ok(search_uid, i->name); | |
f647962d MS |
962 | if (r < 0) |
963 | return log_error_errno(r, "Failed to verify uid " UID_FMT ": %m", i->uid); | |
964 | else if (r > 0) | |
1b992147 LP |
965 | break; |
966 | } | |
967 | ||
1b992147 LP |
968 | i->uid_set = true; |
969 | i->uid = search_uid; | |
1b992147 LP |
970 | } |
971 | ||
d5099efc | 972 | r = hashmap_ensure_allocated(&todo_uids, NULL); |
1b992147 LP |
973 | if (r < 0) |
974 | return log_oom(); | |
975 | ||
976 | r = hashmap_put(todo_uids, UID_TO_PTR(i->uid), i); | |
977 | if (r < 0) | |
978 | return log_oom(); | |
979 | ||
c1b6b04f | 980 | i->todo_user = true; |
1b992147 LP |
981 | log_info("Creating user %s (%s) with uid " UID_FMT " and gid " GID_FMT ".", i->name, strna(i->description), i->uid, i->gid); |
982 | ||
983 | return 0; | |
984 | } | |
985 | ||
986 | static int gid_is_ok(gid_t gid) { | |
987 | struct group *g; | |
988 | struct passwd *p; | |
989 | ||
990 | if (hashmap_get(todo_gids, GID_TO_PTR(gid))) | |
991 | return 0; | |
992 | ||
993 | /* Avoid reusing gids that are already used by a different user */ | |
994 | if (hashmap_get(todo_uids, UID_TO_PTR(gid))) | |
995 | return 0; | |
996 | ||
997 | if (hashmap_contains(database_gid, GID_TO_PTR(gid))) | |
998 | return 0; | |
999 | ||
1000 | if (hashmap_contains(database_uid, UID_TO_PTR(gid))) | |
1001 | return 0; | |
1002 | ||
1003 | if (!arg_root) { | |
1004 | errno = 0; | |
1005 | g = getgrgid(gid); | |
1006 | if (g) | |
1007 | return 0; | |
b0284aba | 1008 | if (!IN_SET(errno, 0, ENOENT)) |
1b992147 LP |
1009 | return -errno; |
1010 | ||
1011 | errno = 0; | |
1012 | p = getpwuid((uid_t) gid); | |
1013 | if (p) | |
1014 | return 0; | |
b0284aba | 1015 | if (!IN_SET(errno, 0, ENOENT)) |
1b992147 LP |
1016 | return -errno; |
1017 | } | |
1018 | ||
1019 | return 1; | |
1020 | } | |
1021 | ||
1022 | static int add_group(Item *i) { | |
1023 | void *z; | |
1024 | int r; | |
1025 | ||
1026 | assert(i); | |
1027 | ||
1028 | /* Check the database directly */ | |
1029 | z = hashmap_get(database_group, i->name); | |
1030 | if (z) { | |
1031 | log_debug("Group %s already exists.", i->name); | |
1032 | i->gid = PTR_TO_GID(z); | |
1033 | i->gid_set = true; | |
1034 | return 0; | |
1035 | } | |
1036 | ||
1037 | /* Also check NSS */ | |
1038 | if (!arg_root) { | |
1039 | struct group *g; | |
1040 | ||
1041 | errno = 0; | |
1042 | g = getgrnam(i->name); | |
1043 | if (g) { | |
1044 | log_debug("Group %s already exists.", i->name); | |
1045 | i->gid = g->gr_gid; | |
1046 | i->gid_set = true; | |
1047 | return 0; | |
1048 | } | |
4a62c710 MS |
1049 | if (!IN_SET(errno, 0, ENOENT)) |
1050 | return log_error_errno(errno, "Failed to check if group %s already exists: %m", i->name); | |
1b992147 LP |
1051 | } |
1052 | ||
1053 | /* Try to use the suggested numeric gid */ | |
1054 | if (i->gid_set) { | |
1055 | r = gid_is_ok(i->gid); | |
f647962d MS |
1056 | if (r < 0) |
1057 | return log_error_errno(r, "Failed to verify gid " GID_FMT ": %m", i->gid); | |
1b992147 LP |
1058 | if (r == 0) { |
1059 | log_debug("Suggested group ID " GID_FMT " for %s already used.", i->gid, i->name); | |
1060 | i->gid_set = false; | |
1061 | } | |
1062 | } | |
1063 | ||
1064 | /* Try to reuse the numeric uid, if there's one */ | |
1065 | if (!i->gid_set && i->uid_set) { | |
1066 | r = gid_is_ok((gid_t) i->uid); | |
f647962d MS |
1067 | if (r < 0) |
1068 | return log_error_errno(r, "Failed to verify gid " GID_FMT ": %m", i->gid); | |
1b992147 LP |
1069 | if (r > 0) { |
1070 | i->gid = (gid_t) i->uid; | |
1071 | i->gid_set = true; | |
1072 | } | |
1073 | } | |
1074 | ||
1075 | /* If that didn't work, try to read it from the specified path */ | |
1076 | if (!i->gid_set) { | |
1077 | gid_t c; | |
1078 | ||
1079 | if (read_id_from_file(i, NULL, &c) > 0) { | |
1080 | ||
8530dc44 | 1081 | if (c <= 0 || !uid_range_contains(uid_range, n_uid_range, c)) |
1b992147 LP |
1082 | log_debug("Group ID " GID_FMT " of file not suitable for %s.", c, i->name); |
1083 | else { | |
1084 | r = gid_is_ok(c); | |
f647962d MS |
1085 | if (r < 0) |
1086 | return log_error_errno(r, "Failed to verify gid " GID_FMT ": %m", i->gid); | |
1087 | else if (r > 0) { | |
1b992147 LP |
1088 | i->gid = c; |
1089 | i->gid_set = true; | |
1090 | } else | |
1091 | log_debug("Group ID " GID_FMT " of file for %s already used.", c, i->name); | |
1092 | } | |
1093 | } | |
1094 | } | |
1095 | ||
1096 | /* And if that didn't work either, let's try to find a free one */ | |
1097 | if (!i->gid_set) { | |
8530dc44 LP |
1098 | for (;;) { |
1099 | /* We look for new GIDs in the UID pool! */ | |
1100 | r = uid_range_next_lower(uid_range, n_uid_range, &search_uid); | |
1101 | if (r < 0) { | |
1102 | log_error("No free group ID available for %s.", i->name); | |
1103 | return r; | |
1104 | } | |
1105 | ||
1106 | r = gid_is_ok(search_uid); | |
f647962d MS |
1107 | if (r < 0) |
1108 | return log_error_errno(r, "Failed to verify gid " GID_FMT ": %m", i->gid); | |
1109 | else if (r > 0) | |
1b992147 LP |
1110 | break; |
1111 | } | |
1112 | ||
1b992147 | 1113 | i->gid_set = true; |
8530dc44 | 1114 | i->gid = search_uid; |
1b992147 LP |
1115 | } |
1116 | ||
d5099efc | 1117 | r = hashmap_ensure_allocated(&todo_gids, NULL); |
1b992147 LP |
1118 | if (r < 0) |
1119 | return log_oom(); | |
1120 | ||
1121 | r = hashmap_put(todo_gids, GID_TO_PTR(i->gid), i); | |
1122 | if (r < 0) | |
1123 | return log_oom(); | |
1124 | ||
c1b6b04f | 1125 | i->todo_group = true; |
1b992147 LP |
1126 | log_info("Creating group %s with gid " GID_FMT ".", i->name, i->gid); |
1127 | ||
1128 | return 0; | |
1129 | } | |
1130 | ||
1131 | static int process_item(Item *i) { | |
1132 | int r; | |
1133 | ||
1134 | assert(i); | |
1135 | ||
1136 | switch (i->type) { | |
1137 | ||
1138 | case ADD_USER: | |
1139 | r = add_group(i); | |
1140 | if (r < 0) | |
1141 | return r; | |
1142 | ||
1143 | return add_user(i); | |
1144 | ||
1145 | case ADD_GROUP: { | |
1146 | Item *j; | |
1147 | ||
1148 | j = hashmap_get(users, i->name); | |
1149 | if (j) { | |
1150 | /* There's already user to be created for this | |
1151 | * name, let's process that in one step */ | |
1152 | ||
1153 | if (i->gid_set) { | |
1154 | j->gid = i->gid; | |
1155 | j->gid_set = true; | |
1156 | } | |
1157 | ||
1158 | if (i->gid_path) { | |
2fc09a9c DM |
1159 | r = free_and_strdup(&j->gid_path, i->gid_path); |
1160 | if (r < 0) | |
1b992147 LP |
1161 | return log_oom(); |
1162 | } | |
1163 | ||
1164 | return 0; | |
1165 | } | |
1166 | ||
1167 | return add_group(i); | |
1168 | } | |
1b992147 | 1169 | |
a12b0cc3 LP |
1170 | default: |
1171 | assert_not_reached("Unknown item type"); | |
1172 | } | |
1b992147 LP |
1173 | } |
1174 | ||
1175 | static void item_free(Item *i) { | |
1176 | ||
1177 | if (!i) | |
1178 | return; | |
1179 | ||
1180 | free(i->name); | |
1181 | free(i->uid_path); | |
1182 | free(i->gid_path); | |
1183 | free(i->description); | |
1184 | free(i); | |
1185 | } | |
1186 | ||
1187 | DEFINE_TRIVIAL_CLEANUP_FUNC(Item*, item_free); | |
1188 | ||
a12b0cc3 LP |
1189 | static int add_implicit(void) { |
1190 | char *g, **l; | |
1191 | Iterator iterator; | |
1192 | int r; | |
1193 | ||
1194 | /* Implicitly create additional users and groups, if they were listed in "m" lines */ | |
1195 | ||
1196 | HASHMAP_FOREACH_KEY(l, g, members, iterator) { | |
1197 | Item *i; | |
1198 | char **m; | |
1199 | ||
1200 | i = hashmap_get(groups, g); | |
1201 | if (!i) { | |
1202 | _cleanup_(item_freep) Item *j = NULL; | |
1203 | ||
d5099efc | 1204 | r = hashmap_ensure_allocated(&groups, &string_hash_ops); |
a12b0cc3 LP |
1205 | if (r < 0) |
1206 | return log_oom(); | |
1207 | ||
1208 | j = new0(Item, 1); | |
1209 | if (!j) | |
1210 | return log_oom(); | |
1211 | ||
1212 | j->type = ADD_GROUP; | |
1213 | j->name = strdup(g); | |
1214 | if (!j->name) | |
1215 | return log_oom(); | |
1216 | ||
1217 | r = hashmap_put(groups, j->name, j); | |
1218 | if (r < 0) | |
1219 | return log_oom(); | |
1220 | ||
1221 | log_debug("Adding implicit group '%s' due to m line", j->name); | |
1222 | j = NULL; | |
1223 | } | |
1224 | ||
1225 | STRV_FOREACH(m, l) { | |
1226 | ||
1227 | i = hashmap_get(users, *m); | |
1228 | if (!i) { | |
1229 | _cleanup_(item_freep) Item *j = NULL; | |
1230 | ||
d5099efc | 1231 | r = hashmap_ensure_allocated(&users, &string_hash_ops); |
a12b0cc3 LP |
1232 | if (r < 0) |
1233 | return log_oom(); | |
1234 | ||
1235 | j = new0(Item, 1); | |
1236 | if (!j) | |
1237 | return log_oom(); | |
1238 | ||
1239 | j->type = ADD_USER; | |
1240 | j->name = strdup(*m); | |
1241 | if (!j->name) | |
1242 | return log_oom(); | |
1243 | ||
1244 | r = hashmap_put(users, j->name, j); | |
1245 | if (r < 0) | |
1246 | return log_oom(); | |
1247 | ||
1248 | log_debug("Adding implicit user '%s' due to m line", j->name); | |
1249 | j = NULL; | |
1250 | } | |
1251 | } | |
1252 | } | |
1253 | ||
1254 | return 0; | |
1255 | } | |
1256 | ||
1b992147 LP |
1257 | static bool item_equal(Item *a, Item *b) { |
1258 | assert(a); | |
1259 | assert(b); | |
1260 | ||
1261 | if (a->type != b->type) | |
1262 | return false; | |
1263 | ||
1264 | if (!streq_ptr(a->name, b->name)) | |
1265 | return false; | |
1266 | ||
1267 | if (!streq_ptr(a->uid_path, b->uid_path)) | |
1268 | return false; | |
1269 | ||
1270 | if (!streq_ptr(a->gid_path, b->gid_path)) | |
1271 | return false; | |
1272 | ||
1273 | if (!streq_ptr(a->description, b->description)) | |
1274 | return false; | |
1275 | ||
1276 | if (a->uid_set != b->uid_set) | |
1277 | return false; | |
1278 | ||
1279 | if (a->uid_set && a->uid != b->uid) | |
1280 | return false; | |
1281 | ||
1282 | if (a->gid_set != b->gid_set) | |
1283 | return false; | |
1284 | ||
1285 | if (a->gid_set && a->gid != b->gid) | |
1286 | return false; | |
1287 | ||
7629889c LP |
1288 | if (!streq_ptr(a->home, b->home)) |
1289 | return false; | |
1290 | ||
1b992147 LP |
1291 | return true; |
1292 | } | |
1293 | ||
1294 | static bool valid_user_group_name(const char *u) { | |
1295 | const char *i; | |
1296 | long sz; | |
1297 | ||
24fb7c1f | 1298 | if (isempty(u)) |
1b992147 LP |
1299 | return false; |
1300 | ||
1301 | if (!(u[0] >= 'a' && u[0] <= 'z') && | |
1302 | !(u[0] >= 'A' && u[0] <= 'Z') && | |
1303 | u[0] != '_') | |
1304 | return false; | |
1305 | ||
1306 | for (i = u+1; *i; i++) { | |
1307 | if (!(*i >= 'a' && *i <= 'z') && | |
1308 | !(*i >= 'A' && *i <= 'Z') && | |
1309 | !(*i >= '0' && *i <= '9') && | |
1310 | *i != '_' && | |
1311 | *i != '-') | |
1312 | return false; | |
1313 | } | |
1314 | ||
1315 | sz = sysconf(_SC_LOGIN_NAME_MAX); | |
1316 | assert_se(sz > 0); | |
1317 | ||
1318 | if ((size_t) (i-u) > (size_t) sz) | |
1319 | return false; | |
1320 | ||
932ad62b LP |
1321 | if ((size_t) (i-u) > UT_NAMESIZE - 1) |
1322 | return false; | |
1323 | ||
1b992147 LP |
1324 | return true; |
1325 | } | |
1326 | ||
1327 | static bool valid_gecos(const char *d) { | |
1328 | ||
7629889c LP |
1329 | if (!d) |
1330 | return false; | |
1331 | ||
1b992147 LP |
1332 | if (!utf8_is_valid(d)) |
1333 | return false; | |
1334 | ||
38c74dad LP |
1335 | if (string_has_cc(d, NULL)) |
1336 | return false; | |
1337 | ||
1338 | /* Colons are used as field separators, and hence not OK */ | |
1339 | if (strchr(d, ':')) | |
1b992147 LP |
1340 | return false; |
1341 | ||
1342 | return true; | |
1343 | } | |
1344 | ||
7629889c LP |
1345 | static bool valid_home(const char *p) { |
1346 | ||
1347 | if (isempty(p)) | |
1348 | return false; | |
1349 | ||
1350 | if (!utf8_is_valid(p)) | |
1351 | return false; | |
1352 | ||
1353 | if (string_has_cc(p, NULL)) | |
1354 | return false; | |
1355 | ||
1356 | if (!path_is_absolute(p)) | |
1357 | return false; | |
1358 | ||
1359 | if (!path_is_safe(p)) | |
1360 | return false; | |
1361 | ||
1362 | /* Colons are used as field separators, and hence not OK */ | |
1363 | if (strchr(p, ':')) | |
1364 | return false; | |
1365 | ||
1366 | return true; | |
1367 | } | |
1368 | ||
1b992147 LP |
1369 | static int parse_line(const char *fname, unsigned line, const char *buffer) { |
1370 | ||
1371 | static const Specifier specifier_table[] = { | |
1372 | { 'm', specifier_machine_id, NULL }, | |
1373 | { 'b', specifier_boot_id, NULL }, | |
1374 | { 'H', specifier_host_name, NULL }, | |
1375 | { 'v', specifier_kernel_release, NULL }, | |
1376 | {} | |
1377 | }; | |
1378 | ||
8530dc44 | 1379 | _cleanup_free_ char *action = NULL, *name = NULL, *id = NULL, *resolved_name = NULL, *resolved_id = NULL, *description = NULL, *home = NULL; |
1b992147 LP |
1380 | _cleanup_(item_freep) Item *i = NULL; |
1381 | Item *existing; | |
1382 | Hashmap *h; | |
7629889c LP |
1383 | int r; |
1384 | const char *p; | |
1b992147 LP |
1385 | |
1386 | assert(fname); | |
1387 | assert(line >= 1); | |
1388 | assert(buffer); | |
1389 | ||
7629889c LP |
1390 | /* Parse columns */ |
1391 | p = buffer; | |
12ba2c44 | 1392 | r = extract_many_words(&p, NULL, EXTRACT_QUOTES, &action, &name, &id, &description, &home, NULL); |
7629889c | 1393 | if (r < 0) { |
1b992147 | 1394 | log_error("[%s:%u] Syntax error.", fname, line); |
7629889c LP |
1395 | return r; |
1396 | } | |
1397 | if (r < 2) { | |
1398 | log_error("[%s:%u] Missing action and name columns.", fname, line); | |
1399 | return -EINVAL; | |
1400 | } | |
4b1c1753 | 1401 | if (!isempty(p)) { |
7629889c LP |
1402 | log_error("[%s:%u] Trailing garbage.", fname, line); |
1403 | return -EINVAL; | |
1b992147 LP |
1404 | } |
1405 | ||
7629889c | 1406 | /* Verify action */ |
1b992147 LP |
1407 | if (strlen(action) != 1) { |
1408 | log_error("[%s:%u] Unknown modifier '%s'", fname, line, action); | |
1409 | return -EINVAL; | |
1410 | } | |
1411 | ||
8530dc44 | 1412 | if (!IN_SET(action[0], ADD_USER, ADD_GROUP, ADD_MEMBER, ADD_RANGE)) { |
1b992147 LP |
1413 | log_error("[%s:%u] Unknown command command type '%c'.", fname, line, action[0]); |
1414 | return -EBADMSG; | |
1415 | } | |
1416 | ||
7629889c | 1417 | /* Verify name */ |
97b11eed DH |
1418 | if (isempty(name) || streq(name, "-")) |
1419 | name = mfree(name); | |
1b992147 | 1420 | |
8530dc44 LP |
1421 | if (name) { |
1422 | r = specifier_printf(name, specifier_table, NULL, &resolved_name); | |
1423 | if (r < 0) { | |
1424 | log_error("[%s:%u] Failed to replace specifiers: %s", fname, line, name); | |
1425 | return r; | |
1426 | } | |
1427 | ||
1428 | if (!valid_user_group_name(resolved_name)) { | |
1429 | log_error("[%s:%u] '%s' is not a valid user or group name.", fname, line, resolved_name); | |
1430 | return -EINVAL; | |
1431 | } | |
1b992147 LP |
1432 | } |
1433 | ||
8530dc44 | 1434 | /* Verify id */ |
97b11eed DH |
1435 | if (isempty(id) || streq(id, "-")) |
1436 | id = mfree(id); | |
7629889c | 1437 | |
8530dc44 LP |
1438 | if (id) { |
1439 | r = specifier_printf(id, specifier_table, NULL, &resolved_id); | |
1440 | if (r < 0) { | |
1441 | log_error("[%s:%u] Failed to replace specifiers: %s", fname, line, name); | |
1442 | return r; | |
1443 | } | |
1444 | } | |
1445 | ||
1446 | /* Verify description */ | |
97b11eed DH |
1447 | if (isempty(description) || streq(description, "-")) |
1448 | description = mfree(description); | |
1b992147 | 1449 | |
8530dc44 LP |
1450 | if (description) { |
1451 | if (!valid_gecos(description)) { | |
1452 | log_error("[%s:%u] '%s' is not a valid GECOS field.", fname, line, description); | |
1453 | return -EINVAL; | |
1454 | } | |
1455 | } | |
1456 | ||
1457 | /* Verify home */ | |
97b11eed DH |
1458 | if (isempty(home) || streq(home, "-")) |
1459 | home = mfree(home); | |
1b992147 | 1460 | |
8530dc44 LP |
1461 | if (home) { |
1462 | if (!valid_home(home)) { | |
1463 | log_error("[%s:%u] '%s' is not a valid home directory field.", fname, line, home); | |
1464 | return -EINVAL; | |
1465 | } | |
1466 | } | |
1467 | ||
a12b0cc3 | 1468 | switch (action[0]) { |
1b992147 | 1469 | |
8530dc44 LP |
1470 | case ADD_RANGE: |
1471 | if (resolved_name) { | |
1472 | log_error("[%s:%u] Lines of type 'r' don't take a name field.", fname, line); | |
1473 | return -EINVAL; | |
1474 | } | |
1b992147 | 1475 | |
8530dc44 LP |
1476 | if (!resolved_id) { |
1477 | log_error("[%s:%u] Lines of type 'r' require a ID range in the third field.", fname, line); | |
1478 | return -EINVAL; | |
1479 | } | |
1b992147 | 1480 | |
7629889c | 1481 | if (description) { |
8530dc44 | 1482 | log_error("[%s:%u] Lines of type 'r' don't take a GECOS field.", fname, line); |
7629889c LP |
1483 | return -EINVAL; |
1484 | } | |
1485 | ||
1486 | if (home) { | |
8530dc44 | 1487 | log_error("[%s:%u] Lines of type 'r' don't take a home directory field.", fname, line); |
7629889c LP |
1488 | return -EINVAL; |
1489 | } | |
1490 | ||
8530dc44 LP |
1491 | r = uid_range_add_str(&uid_range, &n_uid_range, resolved_id); |
1492 | if (r < 0) { | |
1493 | log_error("[%s:%u] Invalid UID range %s.", fname, line, resolved_id); | |
a12b0cc3 LP |
1494 | return -EINVAL; |
1495 | } | |
1b992147 | 1496 | |
8530dc44 LP |
1497 | return 0; |
1498 | ||
1499 | case ADD_MEMBER: { | |
1500 | char **l; | |
1501 | ||
1502 | /* Try to extend an existing member or group item */ | |
1503 | if (!name) { | |
1504 | log_error("[%s:%u] Lines of type 'm' require a user name in the second field.", fname, line); | |
1505 | return -EINVAL; | |
1506 | } | |
1507 | ||
1508 | if (!resolved_id) { | |
1509 | log_error("[%s:%u] Lines of type 'm' require a group name in the third field.", fname, line); | |
1510 | return -EINVAL; | |
a12b0cc3 | 1511 | } |
1b992147 | 1512 | |
a12b0cc3 LP |
1513 | if (!valid_user_group_name(resolved_id)) { |
1514 | log_error("[%s:%u] '%s' is not a valid user or group name.", fname, line, resolved_id); | |
1515 | return -EINVAL; | |
1516 | } | |
1b992147 | 1517 | |
8530dc44 LP |
1518 | if (description) { |
1519 | log_error("[%s:%u] Lines of type 'm' don't take a GECOS field.", fname, line); | |
1520 | return -EINVAL; | |
1521 | } | |
1522 | ||
1523 | if (home) { | |
1524 | log_error("[%s:%u] Lines of type 'm' don't take a home directory field.", fname, line); | |
1525 | return -EINVAL; | |
1526 | } | |
1527 | ||
d5099efc | 1528 | r = hashmap_ensure_allocated(&members, &string_hash_ops); |
7629889c LP |
1529 | if (r < 0) |
1530 | return log_oom(); | |
a12b0cc3 LP |
1531 | |
1532 | l = hashmap_get(members, resolved_id); | |
1533 | if (l) { | |
1534 | /* A list for this group name already exists, let's append to it */ | |
1535 | r = strv_push(&l, resolved_name); | |
1536 | if (r < 0) | |
1537 | return log_oom(); | |
1538 | ||
1539 | resolved_name = NULL; | |
1540 | ||
1541 | assert_se(hashmap_update(members, resolved_id, l) >= 0); | |
1b992147 | 1542 | } else { |
a12b0cc3 LP |
1543 | /* No list for this group name exists yet, create one */ |
1544 | ||
1545 | l = new0(char *, 2); | |
1546 | if (!l) | |
1547 | return -ENOMEM; | |
1548 | ||
1549 | l[0] = resolved_name; | |
1550 | l[1] = NULL; | |
1b992147 | 1551 | |
a12b0cc3 | 1552 | r = hashmap_put(members, resolved_id, l); |
1b992147 | 1553 | if (r < 0) { |
a12b0cc3 LP |
1554 | free(l); |
1555 | return log_oom(); | |
1b992147 LP |
1556 | } |
1557 | ||
a12b0cc3 | 1558 | resolved_id = resolved_name = NULL; |
1b992147 | 1559 | } |
a12b0cc3 LP |
1560 | |
1561 | return 0; | |
1b992147 LP |
1562 | } |
1563 | ||
a12b0cc3 | 1564 | case ADD_USER: |
8530dc44 LP |
1565 | if (!name) { |
1566 | log_error("[%s:%u] Lines of type 'u' require a user name in the second field.", fname, line); | |
1567 | return -EINVAL; | |
1568 | } | |
1569 | ||
d5099efc | 1570 | r = hashmap_ensure_allocated(&users, &string_hash_ops); |
a12b0cc3 LP |
1571 | if (r < 0) |
1572 | return log_oom(); | |
1573 | ||
1574 | i = new0(Item, 1); | |
1575 | if (!i) | |
1576 | return log_oom(); | |
1577 | ||
8530dc44 LP |
1578 | if (resolved_id) { |
1579 | if (path_is_absolute(resolved_id)) { | |
1580 | i->uid_path = resolved_id; | |
1581 | resolved_id = NULL; | |
a12b0cc3 LP |
1582 | |
1583 | path_kill_slashes(i->uid_path); | |
a12b0cc3 | 1584 | } else { |
8530dc44 | 1585 | r = parse_uid(resolved_id, &i->uid); |
a12b0cc3 LP |
1586 | if (r < 0) { |
1587 | log_error("Failed to parse UID: %s", id); | |
1588 | return -EBADMSG; | |
1589 | } | |
1590 | ||
1591 | i->uid_set = true; | |
1592 | } | |
1593 | } | |
1594 | ||
8530dc44 LP |
1595 | i->description = description; |
1596 | description = NULL; | |
7629889c | 1597 | |
8530dc44 LP |
1598 | i->home = home; |
1599 | home = NULL; | |
a12b0cc3 | 1600 | |
1b992147 | 1601 | h = users; |
a12b0cc3 LP |
1602 | break; |
1603 | ||
1604 | case ADD_GROUP: | |
8530dc44 LP |
1605 | if (!name) { |
1606 | log_error("[%s:%u] Lines of type 'g' require a user name in the second field.", fname, line); | |
1607 | return -EINVAL; | |
1608 | } | |
a12b0cc3 | 1609 | |
7629889c | 1610 | if (description) { |
a12b0cc3 LP |
1611 | log_error("[%s:%u] Lines of type 'g' don't take a GECOS field.", fname, line); |
1612 | return -EINVAL; | |
1613 | } | |
1614 | ||
7629889c LP |
1615 | if (home) { |
1616 | log_error("[%s:%u] Lines of type 'g' don't take a home directory field.", fname, line); | |
1617 | return -EINVAL; | |
1618 | } | |
1619 | ||
d5099efc | 1620 | r = hashmap_ensure_allocated(&groups, &string_hash_ops); |
7629889c LP |
1621 | if (r < 0) |
1622 | return log_oom(); | |
1623 | ||
a12b0cc3 LP |
1624 | i = new0(Item, 1); |
1625 | if (!i) | |
1626 | return log_oom(); | |
1627 | ||
8530dc44 LP |
1628 | if (resolved_id) { |
1629 | if (path_is_absolute(resolved_id)) { | |
1630 | i->gid_path = resolved_id; | |
1631 | resolved_id = NULL; | |
a12b0cc3 LP |
1632 | |
1633 | path_kill_slashes(i->gid_path); | |
1634 | } else { | |
8530dc44 | 1635 | r = parse_gid(resolved_id, &i->gid); |
a12b0cc3 LP |
1636 | if (r < 0) { |
1637 | log_error("Failed to parse GID: %s", id); | |
1638 | return -EBADMSG; | |
1639 | } | |
1640 | ||
1641 | i->gid_set = true; | |
1642 | } | |
1643 | } | |
1644 | ||
1b992147 | 1645 | h = groups; |
a12b0cc3 | 1646 | break; |
8530dc44 | 1647 | |
bce415ed RC |
1648 | default: |
1649 | return -EBADMSG; | |
1b992147 | 1650 | } |
a12b0cc3 LP |
1651 | |
1652 | i->type = action[0]; | |
1653 | i->name = resolved_name; | |
1654 | resolved_name = NULL; | |
1b992147 LP |
1655 | |
1656 | existing = hashmap_get(h, i->name); | |
1657 | if (existing) { | |
1658 | ||
1659 | /* Two identical items are fine */ | |
1660 | if (!item_equal(existing, i)) | |
1661 | log_warning("Two or more conflicting lines for %s configured, ignoring.", i->name); | |
1662 | ||
1663 | return 0; | |
1664 | } | |
1665 | ||
1666 | r = hashmap_put(h, i->name, i); | |
a12b0cc3 LP |
1667 | if (r < 0) |
1668 | return log_oom(); | |
1b992147 LP |
1669 | |
1670 | i = NULL; | |
1671 | return 0; | |
1672 | } | |
1673 | ||
1674 | static int read_config_file(const char *fn, bool ignore_enoent) { | |
dfc87cbf LP |
1675 | _cleanup_fclose_ FILE *rf = NULL; |
1676 | FILE *f = NULL; | |
1b992147 LP |
1677 | char line[LINE_MAX]; |
1678 | unsigned v = 0; | |
c4640902 | 1679 | int r = 0; |
1b992147 LP |
1680 | |
1681 | assert(fn); | |
1682 | ||
dfc87cbf LP |
1683 | if (streq(fn, "-")) |
1684 | f = stdin; | |
1685 | else { | |
1686 | r = search_and_fopen_nulstr(fn, "re", arg_root, conf_file_dirs, &rf); | |
1687 | if (r < 0) { | |
1688 | if (ignore_enoent && r == -ENOENT) | |
1689 | return 0; | |
1b992147 | 1690 | |
8d3d7072 | 1691 | return log_error_errno(r, "Failed to open '%s', ignoring: %m", fn); |
dfc87cbf LP |
1692 | } |
1693 | ||
1694 | f = rf; | |
1b992147 LP |
1695 | } |
1696 | ||
1697 | FOREACH_LINE(line, f, break) { | |
1698 | char *l; | |
1699 | int k; | |
1700 | ||
1701 | v++; | |
1702 | ||
1703 | l = strstrip(line); | |
1704 | if (*l == '#' || *l == 0) | |
1705 | continue; | |
1706 | ||
1707 | k = parse_line(fn, v, l); | |
1708 | if (k < 0 && r == 0) | |
1709 | r = k; | |
1710 | } | |
1711 | ||
1712 | if (ferror(f)) { | |
56f64d95 | 1713 | log_error_errno(errno, "Failed to read from file %s: %m", fn); |
1b992147 LP |
1714 | if (r == 0) |
1715 | r = -EIO; | |
1716 | } | |
1717 | ||
1718 | return r; | |
1719 | } | |
1720 | ||
1b992147 LP |
1721 | static void free_database(Hashmap *by_name, Hashmap *by_id) { |
1722 | char *name; | |
1723 | ||
1724 | for (;;) { | |
1725 | name = hashmap_first(by_id); | |
1726 | if (!name) | |
1727 | break; | |
1728 | ||
1729 | hashmap_remove(by_name, name); | |
1730 | ||
1731 | hashmap_steal_first_key(by_id); | |
1732 | free(name); | |
1733 | } | |
1734 | ||
1735 | while ((name = hashmap_steal_first_key(by_name))) | |
1736 | free(name); | |
1737 | ||
1738 | hashmap_free(by_name); | |
1739 | hashmap_free(by_id); | |
1740 | } | |
1741 | ||
601185b4 | 1742 | static void help(void) { |
1b992147 LP |
1743 | printf("%s [OPTIONS...] [CONFIGURATION FILE...]\n\n" |
1744 | "Creates system user accounts.\n\n" | |
1745 | " -h --help Show this help\n" | |
1746 | " --version Show package version\n" | |
601185b4 ZJS |
1747 | " --root=PATH Operate on an alternate filesystem root\n" |
1748 | , program_invocation_short_name); | |
1b992147 LP |
1749 | } |
1750 | ||
1751 | static int parse_argv(int argc, char *argv[]) { | |
1752 | ||
1753 | enum { | |
1754 | ARG_VERSION = 0x100, | |
1755 | ARG_ROOT, | |
1756 | }; | |
1757 | ||
1758 | static const struct option options[] = { | |
1759 | { "help", no_argument, NULL, 'h' }, | |
1760 | { "version", no_argument, NULL, ARG_VERSION }, | |
1761 | { "root", required_argument, NULL, ARG_ROOT }, | |
1762 | {} | |
1763 | }; | |
1764 | ||
0f474365 | 1765 | int c, r; |
1b992147 LP |
1766 | |
1767 | assert(argc >= 0); | |
1768 | assert(argv); | |
1769 | ||
601185b4 | 1770 | while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) |
1b992147 LP |
1771 | |
1772 | switch (c) { | |
1773 | ||
1774 | case 'h': | |
601185b4 ZJS |
1775 | help(); |
1776 | return 0; | |
1b992147 LP |
1777 | |
1778 | case ARG_VERSION: | |
3f6fd1ba | 1779 | return version(); |
1b992147 LP |
1780 | |
1781 | case ARG_ROOT: | |
0f03c2a4 | 1782 | r = parse_path_argument_and_warn(optarg, true, &arg_root); |
0f474365 | 1783 | if (r < 0) |
0f03c2a4 | 1784 | return r; |
1b992147 LP |
1785 | break; |
1786 | ||
1787 | case '?': | |
1788 | return -EINVAL; | |
1789 | ||
1790 | default: | |
1791 | assert_not_reached("Unhandled option"); | |
1792 | } | |
1b992147 LP |
1793 | |
1794 | return 1; | |
1795 | } | |
1796 | ||
1797 | int main(int argc, char *argv[]) { | |
1798 | ||
1799 | _cleanup_close_ int lock = -1; | |
1800 | Iterator iterator; | |
1801 | int r, k; | |
1802 | Item *i; | |
a12b0cc3 | 1803 | char *n; |
1b992147 LP |
1804 | |
1805 | r = parse_argv(argc, argv); | |
1806 | if (r <= 0) | |
1807 | goto finish; | |
1808 | ||
1809 | log_set_target(LOG_TARGET_AUTO); | |
1810 | log_parse_environment(); | |
1811 | log_open(); | |
1812 | ||
1813 | umask(0022); | |
1814 | ||
cc56fafe | 1815 | r = mac_selinux_init(NULL); |
9f1c1940 | 1816 | if (r < 0) { |
da927ba9 | 1817 | log_error_errno(r, "SELinux setup failed: %m"); |
9f1c1940 ZJS |
1818 | goto finish; |
1819 | } | |
1b992147 LP |
1820 | |
1821 | if (optind < argc) { | |
1822 | int j; | |
1823 | ||
1824 | for (j = optind; j < argc; j++) { | |
1825 | k = read_config_file(argv[j], false); | |
1826 | if (k < 0 && r == 0) | |
1827 | r = k; | |
1828 | } | |
1829 | } else { | |
1830 | _cleanup_strv_free_ char **files = NULL; | |
1831 | char **f; | |
1832 | ||
1833 | r = conf_files_list_nulstr(&files, ".conf", arg_root, conf_file_dirs); | |
1834 | if (r < 0) { | |
da927ba9 | 1835 | log_error_errno(r, "Failed to enumerate sysusers.d files: %m"); |
1b992147 LP |
1836 | goto finish; |
1837 | } | |
1838 | ||
1839 | STRV_FOREACH(f, files) { | |
1840 | k = read_config_file(*f, true); | |
1841 | if (k < 0 && r == 0) | |
1842 | r = k; | |
1843 | } | |
1844 | } | |
1845 | ||
8530dc44 LP |
1846 | if (!uid_range) { |
1847 | /* Default to default range of 1..SYSTEMD_UID_MAX */ | |
1848 | r = uid_range_add(&uid_range, &n_uid_range, 1, SYSTEM_UID_MAX); | |
1849 | if (r < 0) { | |
1850 | log_oom(); | |
1851 | goto finish; | |
1852 | } | |
1853 | } | |
1854 | ||
a12b0cc3 LP |
1855 | r = add_implicit(); |
1856 | if (r < 0) | |
1857 | goto finish; | |
1858 | ||
45035609 | 1859 | lock = take_password_lock(arg_root); |
1b992147 | 1860 | if (lock < 0) { |
da927ba9 | 1861 | log_error_errno(lock, "Failed to take lock: %m"); |
1b992147 LP |
1862 | goto finish; |
1863 | } | |
1864 | ||
1865 | r = load_user_database(); | |
1866 | if (r < 0) { | |
da927ba9 | 1867 | log_error_errno(r, "Failed to load user database: %m"); |
1b992147 LP |
1868 | goto finish; |
1869 | } | |
1870 | ||
1871 | r = load_group_database(); | |
1872 | if (r < 0) { | |
da927ba9 | 1873 | log_error_errno(r, "Failed to read group database: %m"); |
1b992147 LP |
1874 | goto finish; |
1875 | } | |
1876 | ||
1877 | HASHMAP_FOREACH(i, groups, iterator) | |
1878 | process_item(i); | |
1879 | ||
1880 | HASHMAP_FOREACH(i, users, iterator) | |
1881 | process_item(i); | |
1882 | ||
1883 | r = write_files(); | |
1884 | if (r < 0) | |
da927ba9 | 1885 | log_error_errno(r, "Failed to write files: %m"); |
1b992147 LP |
1886 | |
1887 | finish: | |
1888 | while ((i = hashmap_steal_first(groups))) | |
1889 | item_free(i); | |
1890 | ||
1891 | while ((i = hashmap_steal_first(users))) | |
1892 | item_free(i); | |
1893 | ||
a12b0cc3 LP |
1894 | while ((n = hashmap_first_key(members))) { |
1895 | strv_free(hashmap_steal_first(members)); | |
1896 | free(n); | |
1897 | } | |
1898 | ||
1b992147 LP |
1899 | hashmap_free(groups); |
1900 | hashmap_free(users); | |
a12b0cc3 | 1901 | hashmap_free(members); |
1b992147 LP |
1902 | hashmap_free(todo_uids); |
1903 | hashmap_free(todo_gids); | |
1904 | ||
1905 | free_database(database_user, database_uid); | |
1906 | free_database(database_group, database_gid); | |
1907 | ||
1908 | free(arg_root); | |
1909 | ||
1910 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; | |
1911 | } |