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5008d581 LP |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
3b63d2d3 | 6 | Copyright 2010 Lennart Poettering, Kay Sievers |
5008d581 LP |
7 | |
8 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
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 | |
5008d581 LP |
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 | |
5430f7f2 | 16 | Lesser General Public License for more details. |
5008d581 | 17 | |
5430f7f2 | 18 | You should have received a copy of the GNU Lesser General Public License |
5008d581 LP |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
20 | ***/ | |
21 | ||
22 | #include <unistd.h> | |
23 | #include <fcntl.h> | |
24 | #include <errno.h> | |
25 | #include <string.h> | |
26 | #include <sys/stat.h> | |
27 | #include <limits.h> | |
28 | #include <dirent.h> | |
29 | #include <grp.h> | |
30 | #include <pwd.h> | |
3b63d2d3 LP |
31 | #include <stdio.h> |
32 | #include <stdlib.h> | |
33 | #include <stddef.h> | |
34 | #include <getopt.h> | |
35 | #include <stdbool.h> | |
36 | #include <time.h> | |
37 | #include <sys/types.h> | |
38 | #include <sys/param.h> | |
b8bb3e8f LP |
39 | #include <glob.h> |
40 | #include <fnmatch.h> | |
cb7ed9df | 41 | #include <sys/capability.h> |
5008d581 LP |
42 | |
43 | #include "log.h" | |
44 | #include "util.h" | |
54693d9b | 45 | #include "macro.h" |
d39efe74 | 46 | #include "missing.h" |
49e942b2 | 47 | #include "mkdir.h" |
9eb977db | 48 | #include "path-util.h" |
5008d581 LP |
49 | #include "strv.h" |
50 | #include "label.h" | |
3b63d2d3 | 51 | #include "set.h" |
2c21044f | 52 | #include "conf-files.h" |
cb7ed9df | 53 | #include "capability.h" |
1731e34a | 54 | #include "specifier.h" |
eb9da376 | 55 | #include "build.h" |
849958d1 | 56 | #include "copy.h" |
5008d581 | 57 | |
01000479 | 58 | /* This reads all files listed in /etc/tmpfiles.d/?*.conf and creates |
5008d581 | 59 | * them in the file system. This is intended to be used to create |
db019b8d KS |
60 | * properly owned directories beneath /tmp, /var/tmp, /run, which are |
61 | * volatile and hence need to be recreated on bootup. */ | |
5008d581 | 62 | |
66ccd038 | 63 | typedef enum ItemType { |
b8bb3e8f | 64 | /* These ones take file names */ |
3b63d2d3 LP |
65 | CREATE_FILE = 'f', |
66 | TRUNCATE_FILE = 'F', | |
67 | CREATE_DIRECTORY = 'd', | |
68 | TRUNCATE_DIRECTORY = 'D', | |
ee17ee7c | 69 | CREATE_FIFO = 'p', |
468d726b LP |
70 | CREATE_SYMLINK = 'L', |
71 | CREATE_CHAR_DEVICE = 'c', | |
72 | CREATE_BLOCK_DEVICE = 'b', | |
849958d1 | 73 | COPY_FILES = 'C', |
265ffa1e | 74 | ADJUST_MODE = 'm', |
b8bb3e8f LP |
75 | |
76 | /* These ones take globs */ | |
cde684a2 | 77 | WRITE_FILE = 'w', |
3b63d2d3 | 78 | IGNORE_PATH = 'x', |
78a92a5a | 79 | IGNORE_DIRECTORY_PATH = 'X', |
3b63d2d3 | 80 | REMOVE_PATH = 'r', |
a8d88783 | 81 | RECURSIVE_REMOVE_PATH = 'R', |
777b87e7 | 82 | RELABEL_PATH = 'z', |
a8d88783 | 83 | RECURSIVE_RELABEL_PATH = 'Z' |
66ccd038 | 84 | } ItemType; |
3b63d2d3 LP |
85 | |
86 | typedef struct Item { | |
66ccd038 | 87 | ItemType type; |
3b63d2d3 LP |
88 | |
89 | char *path; | |
468d726b | 90 | char *argument; |
5008d581 LP |
91 | uid_t uid; |
92 | gid_t gid; | |
3b63d2d3 LP |
93 | mode_t mode; |
94 | usec_t age; | |
95 | ||
468d726b LP |
96 | dev_t major_minor; |
97 | ||
3b63d2d3 LP |
98 | bool uid_set:1; |
99 | bool gid_set:1; | |
100 | bool mode_set:1; | |
101 | bool age_set:1; | |
24f3a374 LP |
102 | |
103 | bool keep_first_level:1; | |
3b63d2d3 LP |
104 | } Item; |
105 | ||
b8bb3e8f | 106 | static Hashmap *items = NULL, *globs = NULL; |
17b90525 | 107 | static Set *unix_sockets = NULL; |
3b63d2d3 LP |
108 | |
109 | static bool arg_create = false; | |
110 | static bool arg_clean = false; | |
111 | static bool arg_remove = false; | |
81815651 | 112 | static bool arg_boot = false; |
3b63d2d3 | 113 | |
a2aced4a | 114 | static char **include_prefixes = NULL; |
5c795114 | 115 | static char **exclude_prefixes = NULL; |
cf9a4abd | 116 | static char *arg_root = NULL; |
fba6e687 | 117 | |
fabe5c0e LP |
118 | static const char conf_file_dirs[] = |
119 | "/etc/tmpfiles.d\0" | |
120 | "/run/tmpfiles.d\0" | |
121 | "/usr/local/lib/tmpfiles.d\0" | |
122 | "/usr/lib/tmpfiles.d\0" | |
3f2afb29 | 123 | #ifdef HAVE_SPLIT_USR |
fabe5c0e | 124 | "/lib/tmpfiles.d\0" |
3f2afb29 | 125 | #endif |
fabe5c0e | 126 | ; |
9125670f | 127 | |
3b63d2d3 LP |
128 | #define MAX_DEPTH 256 |
129 | ||
66ccd038 | 130 | static bool needs_glob(ItemType t) { |
cde684a2 LP |
131 | return IN_SET(t, |
132 | WRITE_FILE, | |
133 | IGNORE_PATH, | |
134 | IGNORE_DIRECTORY_PATH, | |
135 | REMOVE_PATH, | |
136 | RECURSIVE_REMOVE_PATH, | |
137 | RELABEL_PATH, | |
138 | RECURSIVE_RELABEL_PATH); | |
b8bb3e8f LP |
139 | } |
140 | ||
141 | static struct Item* find_glob(Hashmap *h, const char *match) { | |
142 | Item *j; | |
143 | Iterator i; | |
144 | ||
145 | HASHMAP_FOREACH(j, h, i) | |
146 | if (fnmatch(j->path, match, FNM_PATHNAME|FNM_PERIOD) == 0) | |
147 | return j; | |
148 | ||
149 | return NULL; | |
150 | } | |
151 | ||
17b90525 | 152 | static void load_unix_sockets(void) { |
7fd1b19b | 153 | _cleanup_fclose_ FILE *f = NULL; |
17b90525 LP |
154 | char line[LINE_MAX]; |
155 | ||
156 | if (unix_sockets) | |
157 | return; | |
158 | ||
159 | /* We maintain a cache of the sockets we found in | |
160 | * /proc/net/unix to speed things up a little. */ | |
161 | ||
fdcad0c2 LP |
162 | unix_sockets = set_new(string_hash_func, string_compare_func); |
163 | if (!unix_sockets) | |
17b90525 LP |
164 | return; |
165 | ||
fdcad0c2 LP |
166 | f = fopen("/proc/net/unix", "re"); |
167 | if (!f) | |
17b90525 LP |
168 | return; |
169 | ||
fdcad0c2 LP |
170 | /* Skip header */ |
171 | if (!fgets(line, sizeof(line), f)) | |
17b90525 LP |
172 | goto fail; |
173 | ||
174 | for (;;) { | |
175 | char *p, *s; | |
176 | int k; | |
177 | ||
fdcad0c2 | 178 | if (!fgets(line, sizeof(line), f)) |
17b90525 LP |
179 | break; |
180 | ||
181 | truncate_nl(line); | |
182 | ||
fdcad0c2 LP |
183 | p = strchr(line, ':'); |
184 | if (!p) | |
185 | continue; | |
186 | ||
187 | if (strlen(p) < 37) | |
17b90525 LP |
188 | continue; |
189 | ||
fdcad0c2 | 190 | p += 37; |
17b90525 | 191 | p += strspn(p, WHITESPACE); |
fdcad0c2 | 192 | p += strcspn(p, WHITESPACE); /* skip one more word */ |
17b90525 LP |
193 | p += strspn(p, WHITESPACE); |
194 | ||
195 | if (*p != '/') | |
196 | continue; | |
197 | ||
fdcad0c2 LP |
198 | s = strdup(p); |
199 | if (!s) | |
17b90525 LP |
200 | goto fail; |
201 | ||
4ff21d85 LP |
202 | path_kill_slashes(s); |
203 | ||
ef42202a ZJS |
204 | k = set_consume(unix_sockets, s); |
205 | if (k < 0 && k != -EEXIST) | |
206 | goto fail; | |
17b90525 LP |
207 | } |
208 | ||
209 | return; | |
210 | ||
211 | fail: | |
212 | set_free_free(unix_sockets); | |
213 | unix_sockets = NULL; | |
17b90525 LP |
214 | } |
215 | ||
216 | static bool unix_socket_alive(const char *fn) { | |
217 | assert(fn); | |
218 | ||
219 | load_unix_sockets(); | |
220 | ||
221 | if (unix_sockets) | |
222 | return !!set_get(unix_sockets, (char*) fn); | |
223 | ||
224 | /* We don't know, so assume yes */ | |
225 | return true; | |
226 | } | |
227 | ||
99d680ac | 228 | static int dir_is_mount_point(DIR *d, const char *subdir) { |
cde684a2 LP |
229 | |
230 | union file_handle_union h = { | |
231 | .handle.handle_bytes = MAX_HANDLE_SZ | |
232 | }; | |
233 | ||
99d680ac KS |
234 | int mount_id_parent, mount_id; |
235 | int r_p, r; | |
236 | ||
370c860f | 237 | r_p = name_to_handle_at(dirfd(d), ".", &h.handle, &mount_id_parent, 0); |
99d680ac KS |
238 | if (r_p < 0) |
239 | r_p = -errno; | |
240 | ||
370c860f DR |
241 | h.handle.handle_bytes = MAX_HANDLE_SZ; |
242 | r = name_to_handle_at(dirfd(d), subdir, &h.handle, &mount_id, 0); | |
99d680ac KS |
243 | if (r < 0) |
244 | r = -errno; | |
245 | ||
246 | /* got no handle; make no assumptions, return error */ | |
247 | if (r_p < 0 && r < 0) | |
248 | return r_p; | |
249 | ||
250 | /* got both handles; if they differ, it is a mount point */ | |
251 | if (r_p >= 0 && r >= 0) | |
252 | return mount_id_parent != mount_id; | |
253 | ||
254 | /* got only one handle; assume different mount points if one | |
255 | * of both queries was not supported by the filesystem */ | |
256 | if (r_p == -ENOSYS || r_p == -ENOTSUP || r == -ENOSYS || r == -ENOTSUP) | |
257 | return true; | |
258 | ||
259 | /* return error */ | |
260 | if (r_p < 0) | |
261 | return r_p; | |
262 | return r; | |
263 | } | |
264 | ||
3b63d2d3 | 265 | static int dir_cleanup( |
78a92a5a | 266 | Item *i, |
3b63d2d3 LP |
267 | const char *p, |
268 | DIR *d, | |
269 | const struct stat *ds, | |
270 | usec_t cutoff, | |
271 | dev_t rootdev, | |
272 | bool mountpoint, | |
24f3a374 | 273 | int maxdepth, |
265ffa1e LP |
274 | bool keep_this_level) { |
275 | ||
3b63d2d3 LP |
276 | struct dirent *dent; |
277 | struct timespec times[2]; | |
278 | bool deleted = false; | |
3b63d2d3 LP |
279 | int r = 0; |
280 | ||
281 | while ((dent = readdir(d))) { | |
282 | struct stat s; | |
283 | usec_t age; | |
7fd1b19b | 284 | _cleanup_free_ char *sub_path = NULL; |
3b63d2d3 LP |
285 | |
286 | if (streq(dent->d_name, ".") || | |
287 | streq(dent->d_name, "..")) | |
288 | continue; | |
5008d581 | 289 | |
3b63d2d3 | 290 | if (fstatat(dirfd(d), dent->d_name, &s, AT_SYMLINK_NOFOLLOW) < 0) { |
ca2f4176 KS |
291 | if (errno == ENOENT) |
292 | continue; | |
5008d581 | 293 | |
ca2f4176 KS |
294 | /* FUSE, NFS mounts, SELinux might return EACCES */ |
295 | if (errno == EACCES) | |
296 | log_debug("stat(%s/%s) failed: %m", p, dent->d_name); | |
297 | else | |
3b63d2d3 | 298 | log_error("stat(%s/%s) failed: %m", p, dent->d_name); |
ca2f4176 | 299 | r = -errno; |
3b63d2d3 LP |
300 | continue; |
301 | } | |
302 | ||
303 | /* Stay on the same filesystem */ | |
304 | if (s.st_dev != rootdev) | |
305 | continue; | |
306 | ||
99d680ac KS |
307 | /* Try to detect bind mounts of the same filesystem instance; they |
308 | * do not differ in device major/minors. This type of query is not | |
309 | * supported on all kernels or filesystem types though. */ | |
310 | if (S_ISDIR(s.st_mode) && dir_is_mount_point(d, dent->d_name) > 0) | |
311 | continue; | |
312 | ||
3b63d2d3 LP |
313 | /* Do not delete read-only files owned by root */ |
314 | if (s.st_uid == 0 && !(s.st_mode & S_IWUSR)) | |
315 | continue; | |
316 | ||
cde684a2 LP |
317 | sub_path = strjoin(p, "/", dent->d_name, NULL); |
318 | if (!sub_path) { | |
0d0f0c50 | 319 | r = log_oom(); |
3b63d2d3 LP |
320 | goto finish; |
321 | } | |
322 | ||
323 | /* Is there an item configured for this path? */ | |
324 | if (hashmap_get(items, sub_path)) | |
325 | continue; | |
326 | ||
b8bb3e8f LP |
327 | if (find_glob(globs, sub_path)) |
328 | continue; | |
329 | ||
3b63d2d3 LP |
330 | if (S_ISDIR(s.st_mode)) { |
331 | ||
332 | if (mountpoint && | |
333 | streq(dent->d_name, "lost+found") && | |
334 | s.st_uid == 0) | |
335 | continue; | |
336 | ||
337 | if (maxdepth <= 0) | |
338 | log_warning("Reached max depth on %s.", sub_path); | |
339 | else { | |
7fd1b19b | 340 | _cleanup_closedir_ DIR *sub_dir; |
3b63d2d3 LP |
341 | int q; |
342 | ||
e5f3d1ba | 343 | sub_dir = xopendirat(dirfd(d), dent->d_name, O_NOFOLLOW|O_NOATIME); |
cde684a2 | 344 | if (!sub_dir) { |
3b63d2d3 LP |
345 | if (errno != ENOENT) { |
346 | log_error("opendir(%s/%s) failed: %m", p, dent->d_name); | |
347 | r = -errno; | |
348 | } | |
349 | ||
350 | continue; | |
351 | } | |
352 | ||
78a92a5a | 353 | q = dir_cleanup(i, sub_path, sub_dir, &s, cutoff, rootdev, false, maxdepth-1, false); |
3b63d2d3 LP |
354 | if (q < 0) |
355 | r = q; | |
356 | } | |
357 | ||
24f3a374 LP |
358 | /* Note: if you are wondering why we don't |
359 | * support the sticky bit for excluding | |
360 | * directories from cleaning like we do it for | |
361 | * other file system objects: well, the sticky | |
362 | * bit already has a meaning for directories, | |
363 | * so we don't want to overload that. */ | |
364 | ||
365 | if (keep_this_level) | |
366 | continue; | |
367 | ||
3b63d2d3 LP |
368 | /* Ignore ctime, we change it when deleting */ |
369 | age = MAX(timespec_load(&s.st_mtim), | |
370 | timespec_load(&s.st_atim)); | |
371 | if (age >= cutoff) | |
372 | continue; | |
373 | ||
a6187d4c | 374 | if (i->type != IGNORE_DIRECTORY_PATH || !streq(dent->d_name, p)) { |
9f6445e3 | 375 | log_debug("rmdir '%s'", sub_path); |
3b63d2d3 | 376 | |
78a92a5a MS |
377 | if (unlinkat(dirfd(d), dent->d_name, AT_REMOVEDIR) < 0) { |
378 | if (errno != ENOENT && errno != ENOTEMPTY) { | |
379 | log_error("rmdir(%s): %m", sub_path); | |
380 | r = -errno; | |
381 | } | |
3b63d2d3 LP |
382 | } |
383 | } | |
384 | ||
385 | } else { | |
9c73736d LP |
386 | /* Skip files for which the sticky bit is |
387 | * set. These are semantics we define, and are | |
388 | * unknown elsewhere. See XDG_RUNTIME_DIR | |
389 | * specification for details. */ | |
390 | if (s.st_mode & S_ISVTX) | |
391 | continue; | |
392 | ||
17b90525 | 393 | if (mountpoint && S_ISREG(s.st_mode)) { |
3b63d2d3 LP |
394 | if (streq(dent->d_name, ".journal") && |
395 | s.st_uid == 0) | |
396 | continue; | |
397 | ||
398 | if (streq(dent->d_name, "aquota.user") || | |
399 | streq(dent->d_name, "aquota.group")) | |
400 | continue; | |
401 | } | |
402 | ||
17b90525 LP |
403 | /* Ignore sockets that are listed in /proc/net/unix */ |
404 | if (S_ISSOCK(s.st_mode) && unix_socket_alive(sub_path)) | |
405 | continue; | |
406 | ||
78ab08eb LP |
407 | /* Ignore device nodes */ |
408 | if (S_ISCHR(s.st_mode) || S_ISBLK(s.st_mode)) | |
409 | continue; | |
410 | ||
24f3a374 LP |
411 | /* Keep files on this level around if this is |
412 | * requested */ | |
413 | if (keep_this_level) | |
414 | continue; | |
415 | ||
3b63d2d3 LP |
416 | age = MAX3(timespec_load(&s.st_mtim), |
417 | timespec_load(&s.st_atim), | |
418 | timespec_load(&s.st_ctim)); | |
419 | ||
420 | if (age >= cutoff) | |
421 | continue; | |
422 | ||
9f6445e3 | 423 | log_debug("unlink '%s'", sub_path); |
3b63d2d3 LP |
424 | |
425 | if (unlinkat(dirfd(d), dent->d_name, 0) < 0) { | |
426 | if (errno != ENOENT) { | |
427 | log_error("unlink(%s): %m", sub_path); | |
428 | r = -errno; | |
429 | } | |
430 | } | |
431 | ||
432 | deleted = true; | |
433 | } | |
434 | } | |
435 | ||
436 | finish: | |
437 | if (deleted) { | |
438 | /* Restore original directory timestamps */ | |
439 | times[0] = ds->st_atim; | |
440 | times[1] = ds->st_mtim; | |
441 | ||
442 | if (futimens(dirfd(d), times) < 0) | |
443 | log_error("utimensat(%s): %m", p); | |
444 | } | |
445 | ||
3b63d2d3 LP |
446 | return r; |
447 | } | |
448 | ||
265ffa1e | 449 | static int item_set_perms_full(Item *i, const char *path, bool ignore_enoent) { |
cde684a2 LP |
450 | assert(i); |
451 | assert(path); | |
452 | ||
062e01bb MS |
453 | /* not using i->path directly because it may be a glob */ |
454 | if (i->mode_set) | |
455 | if (chmod(path, i->mode) < 0) { | |
265ffa1e LP |
456 | if (errno != ENOENT || !ignore_enoent) { |
457 | log_error("chmod(%s) failed: %m", path); | |
458 | return -errno; | |
459 | } | |
062e01bb MS |
460 | } |
461 | ||
462 | if (i->uid_set || i->gid_set) | |
463 | if (chown(path, | |
464 | i->uid_set ? i->uid : (uid_t) -1, | |
465 | i->gid_set ? i->gid : (gid_t) -1) < 0) { | |
466 | ||
265ffa1e LP |
467 | if (errno != ENOENT || !ignore_enoent) { |
468 | log_error("chown(%s) failed: %m", path); | |
469 | return -errno; | |
470 | } | |
062e01bb MS |
471 | } |
472 | ||
f58ceb21 | 473 | return label_fix(path, ignore_enoent, false); |
265ffa1e LP |
474 | } |
475 | ||
476 | static int item_set_perms(Item *i, const char *path) { | |
477 | return item_set_perms_full(i, path, false); | |
062e01bb MS |
478 | } |
479 | ||
d4e9eb91 | 480 | static int write_one_file(Item *i, const char *path) { |
874f1947 | 481 | int flags; |
df28bc08 | 482 | int fd = -1; |
d4e9eb91 | 483 | struct stat st; |
df28bc08 | 484 | int r = 0; |
d4e9eb91 | 485 | |
874f1947 LP |
486 | assert(i); |
487 | assert(path); | |
488 | ||
d4e9eb91 DR |
489 | flags = i->type == CREATE_FILE ? O_CREAT|O_APPEND : |
490 | i->type == TRUNCATE_FILE ? O_CREAT|O_TRUNC : 0; | |
491 | ||
5c0d398d LP |
492 | RUN_WITH_UMASK(0) { |
493 | label_context_set(path, S_IFREG); | |
494 | fd = open(path, flags|O_NDELAY|O_CLOEXEC|O_WRONLY|O_NOCTTY|O_NOFOLLOW, i->mode); | |
5c0d398d | 495 | label_context_clear(); |
5c0d398d | 496 | } |
d4e9eb91 DR |
497 | |
498 | if (fd < 0) { | |
499 | if (i->type == WRITE_FILE && errno == ENOENT) | |
500 | return 0; | |
501 | ||
502 | log_error("Failed to create file %s: %m", path); | |
503 | return -errno; | |
504 | } | |
505 | ||
506 | if (i->argument) { | |
cde684a2 | 507 | _cleanup_free_ char *unescaped; |
d4e9eb91 DR |
508 | ssize_t n; |
509 | size_t l; | |
d4e9eb91 | 510 | |
54693d9b | 511 | unescaped = cunescape(i->argument); |
3785ba69 | 512 | if (unescaped == NULL) { |
03e334a1 | 513 | safe_close(fd); |
54693d9b | 514 | return log_oom(); |
3785ba69 | 515 | } |
d4e9eb91 | 516 | |
54693d9b DR |
517 | l = strlen(unescaped); |
518 | n = write(fd, unescaped, l); | |
d4e9eb91 | 519 | |
d4e9eb91 DR |
520 | if (n < 0 || (size_t) n < l) { |
521 | log_error("Failed to write file %s: %s", path, n < 0 ? strerror(-n) : "Short write"); | |
03e334a1 | 522 | safe_close(fd); |
d4e9eb91 DR |
523 | return n < 0 ? n : -EIO; |
524 | } | |
525 | } | |
526 | ||
03e334a1 | 527 | safe_close(fd); |
3612fbc1 | 528 | |
d4e9eb91 DR |
529 | if (stat(path, &st) < 0) { |
530 | log_error("stat(%s) failed: %m", path); | |
531 | return -errno; | |
532 | } | |
533 | ||
534 | if (!S_ISREG(st.st_mode)) { | |
535 | log_error("%s is not a file.", path); | |
536 | return -EEXIST; | |
537 | } | |
538 | ||
539 | r = item_set_perms(i, path); | |
540 | if (r < 0) | |
541 | return r; | |
542 | ||
543 | return 0; | |
544 | } | |
545 | ||
062e01bb | 546 | static int recursive_relabel_children(Item *i, const char *path) { |
7fd1b19b | 547 | _cleanup_closedir_ DIR *d; |
a8d88783 MS |
548 | int ret = 0; |
549 | ||
550 | /* This returns the first error we run into, but nevertheless | |
551 | * tries to go on */ | |
552 | ||
553 | d = opendir(path); | |
554 | if (!d) | |
555 | return errno == ENOENT ? 0 : -errno; | |
556 | ||
557 | for (;;) { | |
7d5e9c0f | 558 | struct dirent *de; |
6cf487af | 559 | bool dir; |
a8d88783 | 560 | int r; |
7fd1b19b | 561 | _cleanup_free_ char *entry_path = NULL; |
a8d88783 | 562 | |
d78096b3 FW |
563 | errno = 0; |
564 | de = readdir(d); | |
565 | if (!de && errno != 0) { | |
a8d88783 | 566 | if (ret == 0) |
d78096b3 | 567 | ret = -errno; |
a8d88783 MS |
568 | break; |
569 | } | |
570 | ||
571 | if (!de) | |
572 | break; | |
573 | ||
574 | if (streq(de->d_name, ".") || streq(de->d_name, "..")) | |
575 | continue; | |
576 | ||
577 | if (asprintf(&entry_path, "%s/%s", path, de->d_name) < 0) { | |
578 | if (ret == 0) | |
579 | ret = -ENOMEM; | |
580 | continue; | |
581 | } | |
582 | ||
583 | if (de->d_type == DT_UNKNOWN) { | |
6cf487af ZJS |
584 | r = is_dir(entry_path); |
585 | if (r < 0) { | |
a8d88783 MS |
586 | if (ret == 0 && errno != ENOENT) |
587 | ret = -errno; | |
a8d88783 MS |
588 | continue; |
589 | } | |
590 | ||
6cf487af | 591 | dir = r; |
a8d88783 MS |
592 | |
593 | } else | |
6cf487af | 594 | dir = de->d_type == DT_DIR; |
a8d88783 | 595 | |
062e01bb | 596 | r = item_set_perms(i, entry_path); |
a8d88783 MS |
597 | if (r < 0) { |
598 | if (ret == 0 && r != -ENOENT) | |
599 | ret = r; | |
a8d88783 MS |
600 | continue; |
601 | } | |
602 | ||
6cf487af | 603 | if (dir) { |
062e01bb | 604 | r = recursive_relabel_children(i, entry_path); |
a8d88783 MS |
605 | if (r < 0 && ret == 0) |
606 | ret = r; | |
607 | } | |
a8d88783 MS |
608 | } |
609 | ||
a8d88783 MS |
610 | return ret; |
611 | } | |
612 | ||
613 | static int recursive_relabel(Item *i, const char *path) { | |
614 | int r; | |
615 | struct stat st; | |
616 | ||
062e01bb | 617 | r = item_set_perms(i, path); |
a8d88783 MS |
618 | if (r < 0) |
619 | return r; | |
620 | ||
621 | if (lstat(path, &st) < 0) | |
622 | return -errno; | |
623 | ||
624 | if (S_ISDIR(st.st_mode)) | |
062e01bb | 625 | r = recursive_relabel_children(i, path); |
a8d88783 MS |
626 | |
627 | return r; | |
628 | } | |
629 | ||
99e68c0b MS |
630 | static int glob_item(Item *i, int (*action)(Item *, const char *)) { |
631 | int r = 0, k; | |
7fd1b19b | 632 | _cleanup_globfree_ glob_t g = {}; |
99e68c0b MS |
633 | char **fn; |
634 | ||
99e68c0b | 635 | errno = 0; |
c84a9488 ZJS |
636 | k = glob(i->path, GLOB_NOSORT|GLOB_BRACE, NULL, &g); |
637 | if (k != 0) | |
99e68c0b | 638 | if (k != GLOB_NOMATCH) { |
8333c77e | 639 | if (errno > 0) |
99e68c0b MS |
640 | errno = EIO; |
641 | ||
642 | log_error("glob(%s) failed: %m", i->path); | |
643 | return -errno; | |
644 | } | |
99e68c0b | 645 | |
c84a9488 ZJS |
646 | STRV_FOREACH(fn, g.gl_pathv) { |
647 | k = action(i, *fn); | |
648 | if (k < 0) | |
99e68c0b | 649 | r = k; |
c84a9488 | 650 | } |
99e68c0b | 651 | |
99e68c0b MS |
652 | return r; |
653 | } | |
654 | ||
3b63d2d3 | 655 | static int create_item(Item *i) { |
3b63d2d3 | 656 | struct stat st; |
df28bc08 | 657 | int r = 0; |
5008d581 | 658 | |
3b63d2d3 | 659 | assert(i); |
5008d581 | 660 | |
3b63d2d3 LP |
661 | switch (i->type) { |
662 | ||
663 | case IGNORE_PATH: | |
78a92a5a | 664 | case IGNORE_DIRECTORY_PATH: |
3b63d2d3 LP |
665 | case REMOVE_PATH: |
666 | case RECURSIVE_REMOVE_PATH: | |
667 | return 0; | |
5008d581 | 668 | |
3b63d2d3 | 669 | case CREATE_FILE: |
31ed59c5 | 670 | case TRUNCATE_FILE: |
1845fdd9 DR |
671 | r = write_one_file(i, i->path); |
672 | if (r < 0) | |
673 | return r; | |
674 | break; | |
265ffa1e | 675 | |
849958d1 LP |
676 | case COPY_FILES: |
677 | r = copy_tree(i->argument, i->path); | |
678 | if (r < 0) { | |
679 | log_error("Failed to copy files: %s", strerror(-r)); | |
680 | return r; | |
681 | } | |
682 | ||
683 | r = item_set_perms(i, i->path); | |
684 | if (r < 0) | |
685 | return r; | |
686 | ||
687 | break; | |
688 | ||
d4e9eb91 DR |
689 | case WRITE_FILE: |
690 | r = glob_item(i, write_one_file); | |
f05bc3f7 MS |
691 | if (r < 0) |
692 | return r; | |
5008d581 | 693 | |
3b63d2d3 LP |
694 | break; |
695 | ||
265ffa1e LP |
696 | case ADJUST_MODE: |
697 | r = item_set_perms_full(i, i->path, true); | |
698 | if (r < 0) | |
699 | return r; | |
700 | ||
701 | break; | |
702 | ||
3b63d2d3 LP |
703 | case TRUNCATE_DIRECTORY: |
704 | case CREATE_DIRECTORY: | |
5008d581 | 705 | |
5c0d398d LP |
706 | RUN_WITH_UMASK(0000) { |
707 | mkdir_parents_label(i->path, 0755); | |
708 | r = mkdir(i->path, i->mode); | |
709 | } | |
5008d581 LP |
710 | |
711 | if (r < 0 && errno != EEXIST) { | |
3b63d2d3 | 712 | log_error("Failed to create directory %s: %m", i->path); |
f05bc3f7 | 713 | return -errno; |
5008d581 LP |
714 | } |
715 | ||
3b63d2d3 LP |
716 | if (stat(i->path, &st) < 0) { |
717 | log_error("stat(%s) failed: %m", i->path); | |
f05bc3f7 | 718 | return -errno; |
5008d581 LP |
719 | } |
720 | ||
721 | if (!S_ISDIR(st.st_mode)) { | |
3b63d2d3 | 722 | log_error("%s is not a directory.", i->path); |
f05bc3f7 | 723 | return -EEXIST; |
5008d581 LP |
724 | } |
725 | ||
062e01bb | 726 | r = item_set_perms(i, i->path); |
f05bc3f7 MS |
727 | if (r < 0) |
728 | return r; | |
3b63d2d3 LP |
729 | |
730 | break; | |
ee17ee7c LP |
731 | |
732 | case CREATE_FIFO: | |
733 | ||
5c0d398d LP |
734 | RUN_WITH_UMASK(0000) { |
735 | r = mkfifo(i->path, i->mode); | |
736 | } | |
ee17ee7c LP |
737 | |
738 | if (r < 0 && errno != EEXIST) { | |
739 | log_error("Failed to create fifo %s: %m", i->path); | |
f05bc3f7 | 740 | return -errno; |
ee17ee7c LP |
741 | } |
742 | ||
743 | if (stat(i->path, &st) < 0) { | |
744 | log_error("stat(%s) failed: %m", i->path); | |
f05bc3f7 | 745 | return -errno; |
ee17ee7c LP |
746 | } |
747 | ||
748 | if (!S_ISFIFO(st.st_mode)) { | |
749 | log_error("%s is not a fifo.", i->path); | |
f05bc3f7 | 750 | return -EEXIST; |
ee17ee7c LP |
751 | } |
752 | ||
062e01bb | 753 | r = item_set_perms(i, i->path); |
f05bc3f7 MS |
754 | if (r < 0) |
755 | return r; | |
ee17ee7c LP |
756 | |
757 | break; | |
a8d88783 | 758 | |
468d726b | 759 | case CREATE_SYMLINK: { |
e26da2dc | 760 | _cleanup_free_ char *x = NULL; |
468d726b | 761 | |
e9a5ef7c | 762 | label_context_set(i->path, S_IFLNK); |
468d726b | 763 | r = symlink(i->argument, i->path); |
e9a5ef7c | 764 | label_context_clear(); |
e9a5ef7c | 765 | |
468d726b LP |
766 | if (r < 0 && errno != EEXIST) { |
767 | log_error("symlink(%s, %s) failed: %m", i->argument, i->path); | |
768 | return -errno; | |
769 | } | |
770 | ||
771 | r = readlink_malloc(i->path, &x); | |
772 | if (r < 0) { | |
773 | log_error("readlink(%s) failed: %s", i->path, strerror(-r)); | |
774 | return -errno; | |
775 | } | |
776 | ||
777 | if (!streq(i->argument, x)) { | |
468d726b LP |
778 | log_error("%s is not the right symlinks.", i->path); |
779 | return -EEXIST; | |
780 | } | |
781 | ||
468d726b LP |
782 | break; |
783 | } | |
784 | ||
785 | case CREATE_BLOCK_DEVICE: | |
786 | case CREATE_CHAR_DEVICE: { | |
cb7ed9df LP |
787 | mode_t file_type; |
788 | ||
789 | if (have_effective_cap(CAP_MKNOD) == 0) { | |
790 | /* In a container we lack CAP_MKNOD. We | |
ab06eef8 | 791 | shouldn't attempt to create the device node in |
cb7ed9df LP |
792 | that case to avoid noise, and we don't support |
793 | virtualized devices in containers anyway. */ | |
794 | ||
795 | log_debug("We lack CAP_MKNOD, skipping creation of device node %s.", i->path); | |
796 | return 0; | |
797 | } | |
798 | ||
799 | file_type = (i->type == CREATE_BLOCK_DEVICE ? S_IFBLK : S_IFCHR); | |
468d726b | 800 | |
5c0d398d LP |
801 | RUN_WITH_UMASK(0000) { |
802 | label_context_set(i->path, file_type); | |
803 | r = mknod(i->path, i->mode | file_type, i->major_minor); | |
5c0d398d | 804 | label_context_clear(); |
5c0d398d | 805 | } |
468d726b LP |
806 | |
807 | if (r < 0 && errno != EEXIST) { | |
808 | log_error("Failed to create device node %s: %m", i->path); | |
809 | return -errno; | |
810 | } | |
811 | ||
812 | if (stat(i->path, &st) < 0) { | |
813 | log_error("stat(%s) failed: %m", i->path); | |
814 | return -errno; | |
815 | } | |
816 | ||
e7aee759 | 817 | if ((st.st_mode & S_IFMT) != file_type) { |
468d726b LP |
818 | log_error("%s is not a device node.", i->path); |
819 | return -EEXIST; | |
820 | } | |
821 | ||
822 | r = item_set_perms(i, i->path); | |
823 | if (r < 0) | |
824 | return r; | |
825 | ||
826 | break; | |
827 | } | |
828 | ||
777b87e7 MS |
829 | case RELABEL_PATH: |
830 | ||
831 | r = glob_item(i, item_set_perms); | |
832 | if (r < 0) | |
96ca8194 | 833 | return r; |
777b87e7 MS |
834 | break; |
835 | ||
a8d88783 MS |
836 | case RECURSIVE_RELABEL_PATH: |
837 | ||
838 | r = glob_item(i, recursive_relabel); | |
839 | if (r < 0) | |
840 | return r; | |
3b63d2d3 LP |
841 | } |
842 | ||
3b63d2d3 LP |
843 | log_debug("%s created successfully.", i->path); |
844 | ||
f05bc3f7 | 845 | return 0; |
3b63d2d3 LP |
846 | } |
847 | ||
a0896123 | 848 | static int remove_item_instance(Item *i, const char *instance) { |
3b63d2d3 LP |
849 | int r; |
850 | ||
851 | assert(i); | |
852 | ||
853 | switch (i->type) { | |
854 | ||
855 | case CREATE_FILE: | |
856 | case TRUNCATE_FILE: | |
857 | case CREATE_DIRECTORY: | |
ee17ee7c | 858 | case CREATE_FIFO: |
468d726b LP |
859 | case CREATE_SYMLINK: |
860 | case CREATE_BLOCK_DEVICE: | |
861 | case CREATE_CHAR_DEVICE: | |
3b63d2d3 | 862 | case IGNORE_PATH: |
78a92a5a | 863 | case IGNORE_DIRECTORY_PATH: |
777b87e7 | 864 | case RELABEL_PATH: |
a8d88783 | 865 | case RECURSIVE_RELABEL_PATH: |
31ed59c5 | 866 | case WRITE_FILE: |
849958d1 | 867 | case COPY_FILES: |
265ffa1e | 868 | case ADJUST_MODE: |
3b63d2d3 LP |
869 | break; |
870 | ||
871 | case REMOVE_PATH: | |
b8bb3e8f LP |
872 | if (remove(instance) < 0 && errno != ENOENT) { |
873 | log_error("remove(%s): %m", instance); | |
3b63d2d3 | 874 | return -errno; |
5008d581 | 875 | } |
3b63d2d3 LP |
876 | |
877 | break; | |
878 | ||
879 | case TRUNCATE_DIRECTORY: | |
880 | case RECURSIVE_REMOVE_PATH: | |
d139b24a LP |
881 | /* FIXME: we probably should use dir_cleanup() here |
882 | * instead of rm_rf() so that 'x' is honoured. */ | |
f56d5db9 | 883 | r = rm_rf_dangerous(instance, false, i->type == RECURSIVE_REMOVE_PATH, false); |
468d726b | 884 | if (r < 0 && r != -ENOENT) { |
b8bb3e8f | 885 | log_error("rm_rf(%s): %s", instance, strerror(-r)); |
3b63d2d3 LP |
886 | return r; |
887 | } | |
888 | ||
889 | break; | |
890 | } | |
891 | ||
892 | return 0; | |
893 | } | |
894 | ||
a0896123 | 895 | static int remove_item(Item *i) { |
99e68c0b MS |
896 | int r = 0; |
897 | ||
b8bb3e8f LP |
898 | assert(i); |
899 | ||
900 | switch (i->type) { | |
901 | ||
902 | case CREATE_FILE: | |
903 | case TRUNCATE_FILE: | |
904 | case CREATE_DIRECTORY: | |
ee17ee7c | 905 | case CREATE_FIFO: |
468d726b LP |
906 | case CREATE_SYMLINK: |
907 | case CREATE_CHAR_DEVICE: | |
908 | case CREATE_BLOCK_DEVICE: | |
b8bb3e8f | 909 | case IGNORE_PATH: |
78a92a5a | 910 | case IGNORE_DIRECTORY_PATH: |
777b87e7 | 911 | case RELABEL_PATH: |
a8d88783 | 912 | case RECURSIVE_RELABEL_PATH: |
31ed59c5 | 913 | case WRITE_FILE: |
849958d1 | 914 | case COPY_FILES: |
265ffa1e | 915 | case ADJUST_MODE: |
b8bb3e8f LP |
916 | break; |
917 | ||
918 | case REMOVE_PATH: | |
919 | case TRUNCATE_DIRECTORY: | |
99e68c0b MS |
920 | case RECURSIVE_REMOVE_PATH: |
921 | r = glob_item(i, remove_item_instance); | |
922 | break; | |
b8bb3e8f LP |
923 | } |
924 | ||
99e68c0b | 925 | return r; |
b8bb3e8f LP |
926 | } |
927 | ||
78a92a5a | 928 | static int clean_item_instance(Item *i, const char* instance) { |
7fd1b19b | 929 | _cleanup_closedir_ DIR *d = NULL; |
78a92a5a MS |
930 | struct stat s, ps; |
931 | bool mountpoint; | |
932 | int r; | |
933 | usec_t cutoff, n; | |
934 | ||
935 | assert(i); | |
936 | ||
937 | if (!i->age_set) | |
938 | return 0; | |
939 | ||
940 | n = now(CLOCK_REALTIME); | |
941 | if (n < i->age) | |
942 | return 0; | |
943 | ||
944 | cutoff = n - i->age; | |
945 | ||
946 | d = opendir(instance); | |
947 | if (!d) { | |
948 | if (errno == ENOENT || errno == ENOTDIR) | |
949 | return 0; | |
950 | ||
951 | log_error("Failed to open directory %s: %m", i->path); | |
952 | return -errno; | |
953 | } | |
954 | ||
955 | if (fstat(dirfd(d), &s) < 0) { | |
956 | log_error("stat(%s) failed: %m", i->path); | |
19fbec19 | 957 | return -errno; |
78a92a5a MS |
958 | } |
959 | ||
960 | if (!S_ISDIR(s.st_mode)) { | |
961 | log_error("%s is not a directory.", i->path); | |
19fbec19 | 962 | return -ENOTDIR; |
78a92a5a MS |
963 | } |
964 | ||
965 | if (fstatat(dirfd(d), "..", &ps, AT_SYMLINK_NOFOLLOW) != 0) { | |
966 | log_error("stat(%s/..) failed: %m", i->path); | |
19fbec19 | 967 | return -errno; |
78a92a5a MS |
968 | } |
969 | ||
970 | mountpoint = s.st_dev != ps.st_dev || | |
971 | (s.st_dev == ps.st_dev && s.st_ino == ps.st_ino); | |
972 | ||
19fbec19 ZJS |
973 | r = dir_cleanup(i, instance, d, &s, cutoff, s.st_dev, mountpoint, |
974 | MAX_DEPTH, i->keep_first_level); | |
78a92a5a MS |
975 | return r; |
976 | } | |
977 | ||
978 | static int clean_item(Item *i) { | |
979 | int r = 0; | |
980 | ||
981 | assert(i); | |
982 | ||
983 | switch (i->type) { | |
984 | case CREATE_DIRECTORY: | |
985 | case TRUNCATE_DIRECTORY: | |
986 | case IGNORE_PATH: | |
849958d1 | 987 | case COPY_FILES: |
78a92a5a MS |
988 | clean_item_instance(i, i->path); |
989 | break; | |
990 | case IGNORE_DIRECTORY_PATH: | |
991 | r = glob_item(i, clean_item_instance); | |
992 | break; | |
993 | default: | |
994 | break; | |
995 | } | |
996 | ||
997 | return r; | |
998 | } | |
999 | ||
3b63d2d3 LP |
1000 | static int process_item(Item *i) { |
1001 | int r, q, p; | |
1002 | ||
1003 | assert(i); | |
1004 | ||
1005 | r = arg_create ? create_item(i) : 0; | |
a0896123 | 1006 | q = arg_remove ? remove_item(i) : 0; |
3b63d2d3 LP |
1007 | p = arg_clean ? clean_item(i) : 0; |
1008 | ||
1009 | if (r < 0) | |
1010 | return r; | |
1011 | ||
1012 | if (q < 0) | |
1013 | return q; | |
1014 | ||
1015 | return p; | |
1016 | } | |
1017 | ||
1018 | static void item_free(Item *i) { | |
1019 | assert(i); | |
1020 | ||
1021 | free(i->path); | |
468d726b | 1022 | free(i->argument); |
3b63d2d3 LP |
1023 | free(i); |
1024 | } | |
1025 | ||
14bf2c9d | 1026 | DEFINE_TRIVIAL_CLEANUP_FUNC(Item*, item_free); |
e2f2fb78 | 1027 | |
bfe95f35 LP |
1028 | static bool item_equal(Item *a, Item *b) { |
1029 | assert(a); | |
1030 | assert(b); | |
1031 | ||
1032 | if (!streq_ptr(a->path, b->path)) | |
1033 | return false; | |
1034 | ||
1035 | if (a->type != b->type) | |
1036 | return false; | |
1037 | ||
1038 | if (a->uid_set != b->uid_set || | |
1039 | (a->uid_set && a->uid != b->uid)) | |
1040 | return false; | |
1041 | ||
1042 | if (a->gid_set != b->gid_set || | |
1043 | (a->gid_set && a->gid != b->gid)) | |
1044 | return false; | |
1045 | ||
1046 | if (a->mode_set != b->mode_set || | |
1047 | (a->mode_set && a->mode != b->mode)) | |
1048 | return false; | |
1049 | ||
1050 | if (a->age_set != b->age_set || | |
1051 | (a->age_set && a->age != b->age)) | |
1052 | return false; | |
1053 | ||
31ed59c5 LP |
1054 | if ((a->type == CREATE_FILE || |
1055 | a->type == TRUNCATE_FILE || | |
1056 | a->type == WRITE_FILE || | |
849958d1 LP |
1057 | a->type == CREATE_SYMLINK || |
1058 | a->type == COPY_FILES) && | |
1733ca54 | 1059 | !streq_ptr(a->argument, b->argument)) |
468d726b LP |
1060 | return false; |
1061 | ||
1062 | if ((a->type == CREATE_CHAR_DEVICE || | |
1063 | a->type == CREATE_BLOCK_DEVICE) && | |
1064 | a->major_minor != b->major_minor) | |
1065 | return false; | |
1066 | ||
bfe95f35 LP |
1067 | return true; |
1068 | } | |
1069 | ||
a2aced4a DR |
1070 | static bool should_include_path(const char *path) { |
1071 | char **prefix; | |
1072 | ||
5c795114 DR |
1073 | STRV_FOREACH(prefix, exclude_prefixes) { |
1074 | if (path_startswith(path, *prefix)) | |
1075 | return false; | |
1076 | } | |
a2aced4a DR |
1077 | |
1078 | STRV_FOREACH(prefix, include_prefixes) { | |
1079 | if (path_startswith(path, *prefix)) | |
1080 | return true; | |
1081 | } | |
1082 | ||
5c795114 DR |
1083 | /* no matches, so we should include this path only if we |
1084 | * have no whitelist at all */ | |
1085 | return strv_length(include_prefixes) == 0; | |
a2aced4a DR |
1086 | } |
1087 | ||
fba6e687 | 1088 | static int parse_line(const char *fname, unsigned line, const char *buffer) { |
1731e34a LP |
1089 | |
1090 | static const Specifier specifier_table[] = { | |
1091 | { 'm', specifier_machine_id, NULL }, | |
1092 | { 'b', specifier_boot_id, NULL }, | |
1093 | { 'H', specifier_host_name, NULL }, | |
1094 | { 'v', specifier_kernel_release, NULL }, | |
1095 | {} | |
1096 | }; | |
1097 | ||
cde684a2 LP |
1098 | _cleanup_free_ char *action = NULL, *mode = NULL, *user = NULL, *group = NULL, *age = NULL, *path = NULL; |
1099 | _cleanup_(item_freep) Item *i = NULL; | |
7f2c1f4d | 1100 | Item *existing; |
66ccd038 | 1101 | char type; |
bfe95f35 | 1102 | Hashmap *h; |
31ed59c5 | 1103 | int r, n = -1; |
3b63d2d3 LP |
1104 | |
1105 | assert(fname); | |
1106 | assert(line >= 1); | |
1107 | assert(buffer); | |
1108 | ||
19fbec19 | 1109 | r = sscanf(buffer, |
c4708f13 ZJS |
1110 | "%ms %ms %ms %ms %ms %ms %n", |
1111 | &action, | |
1731e34a | 1112 | &path, |
bd40a2d8 LP |
1113 | &mode, |
1114 | &user, | |
1115 | &group, | |
468d726b | 1116 | &age, |
19fbec19 ZJS |
1117 | &n); |
1118 | if (r < 2) { | |
3b63d2d3 | 1119 | log_error("[%s:%u] Syntax error.", fname, line); |
7f2c1f4d | 1120 | return -EIO; |
5008d581 LP |
1121 | } |
1122 | ||
c4708f13 ZJS |
1123 | if (strlen(action) > 2 || (strlen(action) > 1 && action[1] != '!')) { |
1124 | log_error("[%s:%u] Unknown modifier '%s'", fname, line, action); | |
1125 | return -EINVAL; | |
81815651 | 1126 | } else if (strlen(action) > 1 && !arg_boot) |
c4708f13 ZJS |
1127 | return 0; |
1128 | ||
1129 | type = action[0]; | |
1130 | ||
1731e34a LP |
1131 | i = new0(Item, 1); |
1132 | if (!i) | |
1133 | return log_oom(); | |
1134 | ||
1135 | r = specifier_printf(path, specifier_table, NULL, &i->path); | |
1136 | if (r < 0) { | |
1137 | log_error("[%s:%u] Failed to replace specifiers: %s", fname, line, path); | |
1138 | return r; | |
1139 | } | |
1140 | ||
31ed59c5 LP |
1141 | if (n >= 0) { |
1142 | n += strspn(buffer+n, WHITESPACE); | |
1143 | if (buffer[n] != 0 && (buffer[n] != '-' || buffer[n+1] != 0)) { | |
1144 | i->argument = unquote(buffer+n, "\""); | |
0d0f0c50 SL |
1145 | if (!i->argument) |
1146 | return log_oom(); | |
31ed59c5 LP |
1147 | } |
1148 | } | |
1149 | ||
777b87e7 | 1150 | switch(type) { |
468d726b | 1151 | |
777b87e7 MS |
1152 | case CREATE_FILE: |
1153 | case TRUNCATE_FILE: | |
1154 | case CREATE_DIRECTORY: | |
1155 | case TRUNCATE_DIRECTORY: | |
1156 | case CREATE_FIFO: | |
1157 | case IGNORE_PATH: | |
78a92a5a | 1158 | case IGNORE_DIRECTORY_PATH: |
777b87e7 MS |
1159 | case REMOVE_PATH: |
1160 | case RECURSIVE_REMOVE_PATH: | |
1161 | case RELABEL_PATH: | |
1162 | case RECURSIVE_RELABEL_PATH: | |
265ffa1e | 1163 | case ADJUST_MODE: |
777b87e7 | 1164 | break; |
468d726b LP |
1165 | |
1166 | case CREATE_SYMLINK: | |
1167 | if (!i->argument) { | |
1168 | log_error("[%s:%u] Symlink file requires argument.", fname, line); | |
7f2c1f4d | 1169 | return -EBADMSG; |
468d726b | 1170 | } |
cde684a2 | 1171 | |
468d726b LP |
1172 | break; |
1173 | ||
31ed59c5 LP |
1174 | case WRITE_FILE: |
1175 | if (!i->argument) { | |
1176 | log_error("[%s:%u] Write file requires argument.", fname, line); | |
7f2c1f4d | 1177 | return -EBADMSG; |
31ed59c5 LP |
1178 | } |
1179 | break; | |
1180 | ||
849958d1 LP |
1181 | case COPY_FILES: |
1182 | if (!i->argument) { | |
1183 | log_error("[%s:%u] Copy files requires argument.", fname, line); | |
1184 | return -EBADMSG; | |
1185 | } | |
1186 | ||
1187 | if (!path_is_absolute(i->argument)) { | |
1188 | log_error("[%s:%u] Source path is not absolute.", fname, line); | |
1189 | return -EBADMSG; | |
1190 | } | |
1191 | ||
1192 | path_kill_slashes(i->argument); | |
1193 | break; | |
1194 | ||
468d726b LP |
1195 | case CREATE_CHAR_DEVICE: |
1196 | case CREATE_BLOCK_DEVICE: { | |
1197 | unsigned major, minor; | |
1198 | ||
1199 | if (!i->argument) { | |
1200 | log_error("[%s:%u] Device file requires argument.", fname, line); | |
7f2c1f4d | 1201 | return -EBADMSG; |
468d726b LP |
1202 | } |
1203 | ||
1204 | if (sscanf(i->argument, "%u:%u", &major, &minor) != 2) { | |
1205 | log_error("[%s:%u] Can't parse device file major/minor '%s'.", fname, line, i->argument); | |
7f2c1f4d | 1206 | return -EBADMSG; |
468d726b LP |
1207 | } |
1208 | ||
1209 | i->major_minor = makedev(major, minor); | |
1210 | break; | |
1211 | } | |
1212 | ||
777b87e7 | 1213 | default: |
a8d88783 | 1214 | log_error("[%s:%u] Unknown file type '%c'.", fname, line, type); |
7f2c1f4d | 1215 | return -EBADMSG; |
3b63d2d3 | 1216 | } |
468d726b | 1217 | |
a8d88783 | 1218 | i->type = type; |
3b63d2d3 LP |
1219 | |
1220 | if (!path_is_absolute(i->path)) { | |
1221 | log_error("[%s:%u] Path '%s' not absolute.", fname, line, i->path); | |
7f2c1f4d | 1222 | return -EBADMSG; |
3b63d2d3 LP |
1223 | } |
1224 | ||
1225 | path_kill_slashes(i->path); | |
1226 | ||
a2aced4a | 1227 | if (!should_include_path(i->path)) |
7f2c1f4d | 1228 | return 0; |
5008d581 | 1229 | |
cf9a4abd | 1230 | if (arg_root) { |
cde684a2 LP |
1231 | char *p; |
1232 | ||
1233 | p = strappend(arg_root, i->path); | |
cf9a4abd MM |
1234 | if (!p) |
1235 | return log_oom(); | |
1236 | ||
1237 | free(i->path); | |
1238 | i->path = p; | |
1239 | } | |
1240 | ||
3b63d2d3 | 1241 | if (user && !streq(user, "-")) { |
4b67834e LP |
1242 | const char *u = user; |
1243 | ||
d05c5031 | 1244 | r = get_user_creds(&u, &i->uid, NULL, NULL, NULL); |
4b67834e | 1245 | if (r < 0) { |
3b63d2d3 | 1246 | log_error("[%s:%u] Unknown user '%s'.", fname, line, user); |
7f2c1f4d | 1247 | return r; |
3b63d2d3 LP |
1248 | } |
1249 | ||
1250 | i->uid_set = true; | |
1251 | } | |
1252 | ||
1253 | if (group && !streq(group, "-")) { | |
4b67834e LP |
1254 | const char *g = group; |
1255 | ||
1256 | r = get_group_creds(&g, &i->gid); | |
1257 | if (r < 0) { | |
3b63d2d3 | 1258 | log_error("[%s:%u] Unknown group '%s'.", fname, line, group); |
7f2c1f4d | 1259 | return r; |
3b63d2d3 LP |
1260 | } |
1261 | ||
1262 | i->gid_set = true; | |
1263 | } | |
1264 | ||
1265 | if (mode && !streq(mode, "-")) { | |
1266 | unsigned m; | |
1267 | ||
1268 | if (sscanf(mode, "%o", &m) != 1) { | |
1269 | log_error("[%s:%u] Invalid mode '%s'.", fname, line, mode); | |
7f2c1f4d | 1270 | return -ENOENT; |
3b63d2d3 LP |
1271 | } |
1272 | ||
1273 | i->mode = m; | |
1274 | i->mode_set = true; | |
1275 | } else | |
468d726b LP |
1276 | i->mode = |
1277 | i->type == CREATE_DIRECTORY || | |
1278 | i->type == TRUNCATE_DIRECTORY ? 0755 : 0644; | |
3b63d2d3 LP |
1279 | |
1280 | if (age && !streq(age, "-")) { | |
24f3a374 LP |
1281 | const char *a = age; |
1282 | ||
1283 | if (*a == '~') { | |
1284 | i->keep_first_level = true; | |
1285 | a++; | |
1286 | } | |
1287 | ||
7f602784 | 1288 | if (parse_sec(a, &i->age) < 0) { |
3b63d2d3 | 1289 | log_error("[%s:%u] Invalid age '%s'.", fname, line, age); |
7f2c1f4d | 1290 | return -EBADMSG; |
3b63d2d3 LP |
1291 | } |
1292 | ||
1293 | i->age_set = true; | |
1294 | } | |
1295 | ||
bfe95f35 LP |
1296 | h = needs_glob(i->type) ? globs : items; |
1297 | ||
468d726b LP |
1298 | existing = hashmap_get(h, i->path); |
1299 | if (existing) { | |
bfe95f35 LP |
1300 | |
1301 | /* Two identical items are fine */ | |
1302 | if (!item_equal(existing, i)) | |
022707d9 | 1303 | log_warning("Two or more conflicting lines for %s configured, ignoring.", i->path); |
022707d9 | 1304 | |
7f2c1f4d | 1305 | return 0; |
bfe95f35 LP |
1306 | } |
1307 | ||
468d726b LP |
1308 | r = hashmap_put(h, i->path, i); |
1309 | if (r < 0) { | |
3b63d2d3 | 1310 | log_error("Failed to insert item %s: %s", i->path, strerror(-r)); |
7f2c1f4d | 1311 | return r; |
3b63d2d3 LP |
1312 | } |
1313 | ||
7f2c1f4d | 1314 | i = NULL; /* avoid cleanup */ |
5008d581 | 1315 | |
7f2c1f4d | 1316 | return 0; |
5008d581 LP |
1317 | } |
1318 | ||
3b63d2d3 LP |
1319 | static int help(void) { |
1320 | ||
522d4a49 LP |
1321 | printf("%s [OPTIONS...] [CONFIGURATION FILE...]\n\n" |
1322 | "Creates, deletes and cleans up volatile and temporary files and directories.\n\n" | |
5c795114 | 1323 | " -h --help Show this help\n" |
eb9da376 | 1324 | " --version Show package version\n" |
5c795114 DR |
1325 | " --create Create marked files/directories\n" |
1326 | " --clean Clean up marked directories\n" | |
1327 | " --remove Remove marked files/directories\n" | |
81815651 | 1328 | " --boot Execute actions only safe at boot\n" |
5c795114 | 1329 | " --prefix=PATH Only apply rules that apply to paths with the specified prefix\n" |
cf9a4abd MM |
1330 | " --exclude-prefix=PATH Ignore rules that apply to paths with the specified prefix\n" |
1331 | " --root=PATH Operate on an alternate filesystem root\n", | |
3b63d2d3 LP |
1332 | program_invocation_short_name); |
1333 | ||
1334 | return 0; | |
1335 | } | |
1336 | ||
1337 | static int parse_argv(int argc, char *argv[]) { | |
1338 | ||
1339 | enum { | |
eb9da376 | 1340 | ARG_VERSION = 0x100, |
3b63d2d3 LP |
1341 | ARG_CREATE, |
1342 | ARG_CLEAN, | |
fba6e687 | 1343 | ARG_REMOVE, |
81815651 | 1344 | ARG_BOOT, |
5c795114 DR |
1345 | ARG_PREFIX, |
1346 | ARG_EXCLUDE_PREFIX, | |
cf9a4abd | 1347 | ARG_ROOT, |
3b63d2d3 LP |
1348 | }; |
1349 | ||
1350 | static const struct option options[] = { | |
5c795114 | 1351 | { "help", no_argument, NULL, 'h' }, |
eb9da376 | 1352 | { "version", no_argument, NULL, ARG_VERSION }, |
5c795114 DR |
1353 | { "create", no_argument, NULL, ARG_CREATE }, |
1354 | { "clean", no_argument, NULL, ARG_CLEAN }, | |
1355 | { "remove", no_argument, NULL, ARG_REMOVE }, | |
81815651 | 1356 | { "boot", no_argument, NULL, ARG_BOOT }, |
5c795114 DR |
1357 | { "prefix", required_argument, NULL, ARG_PREFIX }, |
1358 | { "exclude-prefix", required_argument, NULL, ARG_EXCLUDE_PREFIX }, | |
cf9a4abd | 1359 | { "root", required_argument, NULL, ARG_ROOT }, |
eb9da376 | 1360 | {} |
3b63d2d3 LP |
1361 | }; |
1362 | ||
1363 | int c; | |
1364 | ||
1365 | assert(argc >= 0); | |
1366 | assert(argv); | |
1367 | ||
1368 | while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) { | |
1369 | ||
1370 | switch (c) { | |
1371 | ||
1372 | case 'h': | |
eb9da376 LP |
1373 | return help(); |
1374 | ||
1375 | case ARG_VERSION: | |
1376 | puts(PACKAGE_STRING); | |
1377 | puts(SYSTEMD_FEATURES); | |
3b63d2d3 LP |
1378 | return 0; |
1379 | ||
1380 | case ARG_CREATE: | |
1381 | arg_create = true; | |
1382 | break; | |
1383 | ||
1384 | case ARG_CLEAN: | |
1385 | arg_clean = true; | |
1386 | break; | |
1387 | ||
1388 | case ARG_REMOVE: | |
1389 | arg_remove = true; | |
1390 | break; | |
1391 | ||
81815651 ZJS |
1392 | case ARG_BOOT: |
1393 | arg_boot = true; | |
c4708f13 ZJS |
1394 | break; |
1395 | ||
fba6e687 | 1396 | case ARG_PREFIX: |
498f8a39 | 1397 | if (strv_push(&include_prefixes, optarg) < 0) |
a2aced4a | 1398 | return log_oom(); |
fba6e687 LP |
1399 | break; |
1400 | ||
5c795114 | 1401 | case ARG_EXCLUDE_PREFIX: |
498f8a39 | 1402 | if (strv_push(&exclude_prefixes, optarg) < 0) |
5c795114 DR |
1403 | return log_oom(); |
1404 | break; | |
1405 | ||
cf9a4abd MM |
1406 | case ARG_ROOT: |
1407 | arg_root = path_make_absolute_cwd(optarg); | |
1408 | if (!arg_root) | |
1409 | return log_oom(); | |
1410 | path_kill_slashes(arg_root); | |
1411 | break; | |
1412 | ||
3b63d2d3 LP |
1413 | case '?': |
1414 | return -EINVAL; | |
1415 | ||
1416 | default: | |
eb9da376 | 1417 | assert_not_reached("Unhandled option"); |
3b63d2d3 LP |
1418 | } |
1419 | } | |
1420 | ||
1421 | if (!arg_clean && !arg_create && !arg_remove) { | |
35b8ca3a | 1422 | log_error("You need to specify at least one of --clean, --create or --remove."); |
3b63d2d3 LP |
1423 | return -EINVAL; |
1424 | } | |
1425 | ||
1426 | return 1; | |
1427 | } | |
1428 | ||
fba6e687 | 1429 | static int read_config_file(const char *fn, bool ignore_enoent) { |
1731e34a LP |
1430 | _cleanup_fclose_ FILE *f = NULL; |
1431 | char line[LINE_MAX]; | |
78a92a5a | 1432 | Iterator iterator; |
1731e34a | 1433 | unsigned v = 0; |
78a92a5a | 1434 | Item *i; |
1731e34a | 1435 | int r; |
fba6e687 LP |
1436 | |
1437 | assert(fn); | |
1438 | ||
cf9a4abd | 1439 | r = search_and_fopen_nulstr(fn, "re", arg_root, conf_file_dirs, &f); |
fabe5c0e LP |
1440 | if (r < 0) { |
1441 | if (ignore_enoent && r == -ENOENT) | |
fba6e687 LP |
1442 | return 0; |
1443 | ||
fabe5c0e LP |
1444 | log_error("Failed to open '%s', ignoring: %s", fn, strerror(-r)); |
1445 | return r; | |
fba6e687 LP |
1446 | } |
1447 | ||
1731e34a LP |
1448 | FOREACH_LINE(line, f, break) { |
1449 | char *l; | |
fba6e687 LP |
1450 | int k; |
1451 | ||
fba6e687 LP |
1452 | v++; |
1453 | ||
1454 | l = strstrip(line); | |
1455 | if (*l == '#' || *l == 0) | |
1456 | continue; | |
1457 | ||
1731e34a LP |
1458 | k = parse_line(fn, v, l); |
1459 | if (k < 0 && r == 0) | |
1460 | r = k; | |
fba6e687 LP |
1461 | } |
1462 | ||
78a92a5a MS |
1463 | /* we have to determine age parameter for each entry of type X */ |
1464 | HASHMAP_FOREACH(i, globs, iterator) { | |
1465 | Iterator iter; | |
1466 | Item *j, *candidate_item = NULL; | |
1467 | ||
1468 | if (i->type != IGNORE_DIRECTORY_PATH) | |
1469 | continue; | |
1470 | ||
1471 | HASHMAP_FOREACH(j, items, iter) { | |
1472 | if (j->type != CREATE_DIRECTORY && j->type != TRUNCATE_DIRECTORY) | |
1473 | continue; | |
1474 | ||
1475 | if (path_equal(j->path, i->path)) { | |
1476 | candidate_item = j; | |
1477 | break; | |
1478 | } | |
1479 | ||
1480 | if ((!candidate_item && path_startswith(i->path, j->path)) || | |
1481 | (candidate_item && path_startswith(j->path, candidate_item->path) && (fnmatch(i->path, j->path, FNM_PATHNAME | FNM_PERIOD) == 0))) | |
1482 | candidate_item = j; | |
1483 | } | |
1484 | ||
1485 | if (candidate_item) { | |
1486 | i->age = candidate_item->age; | |
1487 | i->age_set = true; | |
1488 | } | |
1489 | } | |
1490 | ||
fba6e687 LP |
1491 | if (ferror(f)) { |
1492 | log_error("Failed to read from file %s: %m", fn); | |
1493 | if (r == 0) | |
1494 | r = -EIO; | |
1495 | } | |
1496 | ||
fba6e687 LP |
1497 | return r; |
1498 | } | |
1499 | ||
5008d581 | 1500 | int main(int argc, char *argv[]) { |
fabe5c0e | 1501 | int r, k; |
3b63d2d3 LP |
1502 | Item *i; |
1503 | Iterator iterator; | |
1504 | ||
fdcad0c2 LP |
1505 | r = parse_argv(argc, argv); |
1506 | if (r <= 0) | |
3b63d2d3 | 1507 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; |
5008d581 | 1508 | |
eb0ca9eb | 1509 | log_set_target(LOG_TARGET_AUTO); |
5008d581 LP |
1510 | log_parse_environment(); |
1511 | log_open(); | |
1512 | ||
4c12626c LP |
1513 | umask(0022); |
1514 | ||
e9a5ef7c | 1515 | label_init(NULL); |
5008d581 | 1516 | |
b8bb3e8f LP |
1517 | items = hashmap_new(string_hash_func, string_compare_func); |
1518 | globs = hashmap_new(string_hash_func, string_compare_func); | |
1519 | ||
1520 | if (!items || !globs) { | |
fabe5c0e | 1521 | r = log_oom(); |
3b63d2d3 LP |
1522 | goto finish; |
1523 | } | |
1524 | ||
fabe5c0e | 1525 | r = 0; |
5008d581 | 1526 | |
fba6e687 LP |
1527 | if (optind < argc) { |
1528 | int j; | |
5008d581 | 1529 | |
9125670f | 1530 | for (j = optind; j < argc; j++) { |
fabe5c0e LP |
1531 | k = read_config_file(argv[j], false); |
1532 | if (k < 0 && r == 0) | |
1533 | r = k; | |
9125670f | 1534 | } |
5008d581 | 1535 | |
fba6e687 | 1536 | } else { |
fabe5c0e LP |
1537 | _cleanup_strv_free_ char **files = NULL; |
1538 | char **f; | |
5008d581 | 1539 | |
cf9a4abd | 1540 | r = conf_files_list_nulstr(&files, ".conf", arg_root, conf_file_dirs); |
44143309 | 1541 | if (r < 0) { |
44143309 KS |
1542 | log_error("Failed to enumerate tmpfiles.d files: %s", strerror(-r)); |
1543 | goto finish; | |
1544 | } | |
3b63d2d3 | 1545 | |
772f8371 | 1546 | STRV_FOREACH(f, files) { |
fabe5c0e LP |
1547 | k = read_config_file(*f, true); |
1548 | if (k < 0 && r == 0) | |
1549 | r = k; | |
5008d581 | 1550 | } |
772f8371 | 1551 | } |
5008d581 | 1552 | |
b8bb3e8f | 1553 | HASHMAP_FOREACH(i, globs, iterator) |
21bdae12 | 1554 | process_item(i); |
b8bb3e8f | 1555 | |
3b63d2d3 | 1556 | HASHMAP_FOREACH(i, items, iterator) |
21bdae12 | 1557 | process_item(i); |
3b63d2d3 | 1558 | |
5008d581 | 1559 | finish: |
3b63d2d3 LP |
1560 | while ((i = hashmap_steal_first(items))) |
1561 | item_free(i); | |
1562 | ||
17b90525 LP |
1563 | while ((i = hashmap_steal_first(globs))) |
1564 | item_free(i); | |
1565 | ||
3b63d2d3 | 1566 | hashmap_free(items); |
b8bb3e8f | 1567 | hashmap_free(globs); |
5008d581 | 1568 | |
498f8a39 ZJS |
1569 | free(include_prefixes); |
1570 | free(exclude_prefixes); | |
cf9a4abd | 1571 | free(arg_root); |
a2aced4a | 1572 | |
17b90525 LP |
1573 | set_free_free(unix_sockets); |
1574 | ||
29003cff LP |
1575 | label_finish(); |
1576 | ||
fabe5c0e | 1577 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; |
5008d581 | 1578 | } |