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Commit | Line | Data |
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83096483 LP |
1 | /*** |
2 | This file is part of systemd. | |
3 | ||
4 | Copyright 2011 Lennart Poettering | |
5 | ||
6 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
7 | under the terms of the GNU Lesser General Public License as published by |
8 | the Free Software Foundation; either version 2.1 of the License, or | |
83096483 LP |
9 | (at your option) any later version. |
10 | ||
11 | systemd is distributed in the hope that it will be useful, but | |
12 | WITHOUT ANY WARRANTY; without even the implied warranty <of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
5430f7f2 | 14 | Lesser General Public License for more details. |
83096483 | 15 | |
5430f7f2 | 16 | You should have received a copy of the GNU Lesser General Public License |
83096483 LP |
17 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
18 | ***/ | |
19 | ||
a8fbdf54 | 20 | #include <dirent.h> |
83096483 LP |
21 | #include <errno.h> |
22 | #include <fcntl.h> | |
83096483 | 23 | #include <fnmatch.h> |
a8fbdf54 TA |
24 | #include <limits.h> |
25 | #include <stddef.h> | |
26 | #include <stdio.h> | |
27 | #include <stdlib.h> | |
07630cea | 28 | #include <string.h> |
a8fbdf54 | 29 | #include <sys/stat.h> |
07630cea | 30 | #include <unistd.h> |
83096483 | 31 | |
b5efdb8a | 32 | #include "alloc-util.h" |
07630cea LP |
33 | #include "conf-files.h" |
34 | #include "conf-parser.h" | |
a0956174 | 35 | #include "dirent-util.h" |
a8fbdf54 | 36 | #include "extract-word.h" |
a0956174 | 37 | #include "fd-util.h" |
0ec0deaa | 38 | #include "fileio.h" |
f4f15635 | 39 | #include "fs-util.h" |
83096483 | 40 | #include "hashmap.h" |
07630cea | 41 | #include "install-printf.h" |
a0956174 | 42 | #include "install.h" |
a8fbdf54 TA |
43 | #include "log.h" |
44 | #include "macro.h" | |
07630cea | 45 | #include "mkdir.h" |
83096483 | 46 | #include "path-lookup.h" |
07630cea LP |
47 | #include "path-util.h" |
48 | #include "set.h" | |
49 | #include "special.h" | |
8fcde012 | 50 | #include "stat-util.h" |
8b43440b | 51 | #include "string-table.h" |
07630cea | 52 | #include "string-util.h" |
83096483 LP |
53 | #include "strv.h" |
54 | #include "unit-name.h" | |
83096483 | 55 | |
0ec0deaa LP |
56 | #define UNIT_FILE_FOLLOW_SYMLINK_MAX 64 |
57 | ||
58 | typedef enum SearchFlags { | |
59 | SEARCH_LOAD = 1, | |
60 | SEARCH_FOLLOW_CONFIG_SYMLINKS = 2, | |
61 | } SearchFlags; | |
62 | ||
83096483 | 63 | typedef struct { |
0ec0deaa LP |
64 | OrderedHashmap *will_process; |
65 | OrderedHashmap *have_processed; | |
83096483 LP |
66 | } InstallContext; |
67 | ||
32c0ed7b | 68 | static int in_search_path(const LookupPaths *p, const char *path) { |
8f294b45 | 69 | _cleanup_free_ char *parent = NULL; |
0ec0deaa | 70 | char **i; |
8f294b45 LP |
71 | |
72 | assert(path); | |
73 | ||
5f311f8c LP |
74 | parent = dirname_malloc(path); |
75 | if (!parent) | |
76 | return -ENOMEM; | |
8f294b45 | 77 | |
32c0ed7b | 78 | STRV_FOREACH(i, p->search_path) |
0ec0deaa LP |
79 | if (path_equal(parent, *i)) |
80 | return true; | |
81 | ||
82 | return false; | |
8f294b45 LP |
83 | } |
84 | ||
401017e0 LP |
85 | static const char* skip_root(const LookupPaths *p, const char *path) { |
86 | if (p->root_dir) { | |
87 | char *e; | |
88 | ||
89 | e = path_startswith(path, p->root_dir); | |
90 | if (!e) | |
91 | return NULL; | |
92 | ||
93 | /* Make sure the returned path starts with a slash */ | |
94 | if (e[0] != '/') { | |
95 | if (e == path || e[-1] != '/') | |
96 | return NULL; | |
97 | ||
98 | e--; | |
99 | } | |
100 | ||
101 | return e; | |
102 | } | |
103 | ||
104 | return path; | |
105 | } | |
106 | ||
f4dc1e65 | 107 | static int path_is_generator(const LookupPaths *p, const char *path) { |
f4139308 LP |
108 | _cleanup_free_ char *parent = NULL; |
109 | ||
e1c5c2b0 | 110 | assert(p); |
f4139308 LP |
111 | assert(path); |
112 | ||
113 | parent = dirname_malloc(path); | |
114 | if (!parent) | |
115 | return -ENOMEM; | |
116 | ||
117 | return path_equal(p->generator, parent) || | |
118 | path_equal(p->generator_early, parent) || | |
119 | path_equal(p->generator_late, parent); | |
120 | } | |
121 | ||
e1c5c2b0 LP |
122 | static int path_is_config(const LookupPaths *p, const char *path) { |
123 | _cleanup_free_ char *parent = NULL; | |
401017e0 | 124 | const char *rpath; |
0ec0deaa | 125 | |
e1c5c2b0 | 126 | assert(p); |
0ec0deaa LP |
127 | assert(path); |
128 | ||
e1c5c2b0 LP |
129 | /* Checks whether the specified path is intended for configuration or is outside of it. We check both the |
130 | * top-level directory and the one actually configured. The latter is particularly relevant for cases where we | |
131 | * operate on a root directory. */ | |
0ec0deaa | 132 | |
401017e0 LP |
133 | rpath = skip_root(p, path); |
134 | if (rpath && (path_startswith(rpath, "/etc") || path_startswith(rpath, "/run"))) | |
e1c5c2b0 | 135 | return true; |
0ec0deaa | 136 | |
e1c5c2b0 LP |
137 | parent = dirname_malloc(path); |
138 | if (!parent) | |
139 | return -ENOMEM; | |
0ec0deaa | 140 | |
e1c5c2b0 LP |
141 | return path_equal(parent, p->persistent_config) || |
142 | path_equal(parent, p->runtime_config); | |
0ec0deaa LP |
143 | } |
144 | ||
385eb996 LP |
145 | static int path_is_runtime(const LookupPaths *p, const char *path) { |
146 | _cleanup_free_ char *parent = NULL; | |
401017e0 | 147 | const char *rpath; |
385eb996 LP |
148 | |
149 | assert(p); | |
150 | assert(path); | |
151 | ||
401017e0 LP |
152 | rpath = skip_root(p, path); |
153 | if (rpath && path_startswith(rpath, "/run")) | |
385eb996 LP |
154 | return true; |
155 | ||
156 | parent = dirname_malloc(path); | |
157 | if (!parent) | |
158 | return -ENOMEM; | |
159 | ||
160 | return path_equal(parent, p->runtime_config); | |
161 | } | |
162 | ||
0ec0deaa LP |
163 | int unit_file_changes_add( |
164 | UnitFileChange **changes, | |
165 | unsigned *n_changes, | |
166 | UnitFileChangeType type, | |
167 | const char *path, | |
168 | const char *source) { | |
169 | ||
170 | UnitFileChange *c; | |
171 | unsigned i; | |
172 | ||
173 | assert(path); | |
174 | assert(!changes == !n_changes); | |
175 | ||
176 | if (!changes) | |
177 | return 0; | |
178 | ||
179 | c = realloc(*changes, (*n_changes + 1) * sizeof(UnitFileChange)); | |
180 | if (!c) | |
181 | return -ENOMEM; | |
182 | ||
183 | *changes = c; | |
184 | i = *n_changes; | |
185 | ||
186 | c[i].type = type; | |
187 | c[i].path = strdup(path); | |
188 | if (!c[i].path) | |
189 | return -ENOMEM; | |
190 | ||
191 | path_kill_slashes(c[i].path); | |
192 | ||
193 | if (source) { | |
194 | c[i].source = strdup(source); | |
195 | if (!c[i].source) { | |
196 | free(c[i].path); | |
197 | return -ENOMEM; | |
198 | } | |
199 | ||
200 | path_kill_slashes(c[i].path); | |
201 | } else | |
202 | c[i].source = NULL; | |
203 | ||
204 | *n_changes = i+1; | |
205 | return 0; | |
206 | } | |
207 | ||
208 | void unit_file_changes_free(UnitFileChange *changes, unsigned n_changes) { | |
209 | unsigned i; | |
210 | ||
211 | assert(changes || n_changes == 0); | |
212 | ||
213 | if (!changes) | |
214 | return; | |
215 | ||
216 | for (i = 0; i < n_changes; i++) { | |
217 | free(changes[i].path); | |
218 | free(changes[i].source); | |
219 | } | |
220 | ||
221 | free(changes); | |
222 | } | |
223 | ||
224 | static int create_symlink( | |
225 | const char *old_path, | |
226 | const char *new_path, | |
227 | bool force, | |
228 | UnitFileChange **changes, | |
229 | unsigned *n_changes) { | |
230 | ||
231 | _cleanup_free_ char *dest = NULL; | |
232 | int r; | |
233 | ||
234 | assert(old_path); | |
235 | assert(new_path); | |
236 | ||
237 | /* Actually create a symlink, and remember that we did. Is | |
238 | * smart enough to check if there's already a valid symlink in | |
239 | * place. */ | |
240 | ||
241 | mkdir_parents_label(new_path, 0755); | |
242 | ||
243 | if (symlink(old_path, new_path) >= 0) { | |
244 | unit_file_changes_add(changes, n_changes, UNIT_FILE_SYMLINK, new_path, old_path); | |
3de15214 | 245 | return 1; |
0ec0deaa LP |
246 | } |
247 | ||
248 | if (errno != EEXIST) | |
249 | return -errno; | |
250 | ||
251 | r = readlink_malloc(new_path, &dest); | |
252 | if (r < 0) | |
253 | return r; | |
254 | ||
255 | if (path_equal(dest, old_path)) | |
256 | return 0; | |
257 | ||
258 | if (!force) | |
259 | return -EEXIST; | |
260 | ||
261 | r = symlink_atomic(old_path, new_path); | |
262 | if (r < 0) | |
263 | return r; | |
264 | ||
265 | unit_file_changes_add(changes, n_changes, UNIT_FILE_UNLINK, new_path, NULL); | |
266 | unit_file_changes_add(changes, n_changes, UNIT_FILE_SYMLINK, new_path, old_path); | |
267 | ||
3de15214 | 268 | return 1; |
0ec0deaa LP |
269 | } |
270 | ||
83096483 LP |
271 | static int mark_symlink_for_removal( |
272 | Set **remove_symlinks_to, | |
273 | const char *p) { | |
274 | ||
275 | char *n; | |
276 | int r; | |
277 | ||
278 | assert(p); | |
279 | ||
d5099efc | 280 | r = set_ensure_allocated(remove_symlinks_to, &string_hash_ops); |
83096483 LP |
281 | if (r < 0) |
282 | return r; | |
283 | ||
284 | n = strdup(p); | |
285 | if (!n) | |
286 | return -ENOMEM; | |
287 | ||
288 | path_kill_slashes(n); | |
289 | ||
ef42202a | 290 | r = set_consume(*remove_symlinks_to, n); |
d25e100b LP |
291 | if (r == -EEXIST) |
292 | return 0; | |
ef42202a | 293 | if (r < 0) |
d25e100b | 294 | return r; |
83096483 | 295 | |
0ec0deaa | 296 | return 1; |
83096483 LP |
297 | } |
298 | ||
299 | static int remove_marked_symlinks_fd( | |
300 | Set *remove_symlinks_to, | |
301 | int fd, | |
302 | const char *path, | |
303 | const char *config_path, | |
401017e0 | 304 | const LookupPaths *lp, |
0ec0deaa | 305 | bool *restart, |
83096483 | 306 | UnitFileChange **changes, |
0ec0deaa | 307 | unsigned *n_changes) { |
83096483 | 308 | |
7fd1b19b | 309 | _cleanup_closedir_ DIR *d = NULL; |
d25e100b | 310 | struct dirent *de; |
bcafe923 | 311 | int r = 0; |
83096483 LP |
312 | |
313 | assert(remove_symlinks_to); | |
314 | assert(fd >= 0); | |
315 | assert(path); | |
316 | assert(config_path); | |
401017e0 | 317 | assert(lp); |
0ec0deaa | 318 | assert(restart); |
83096483 LP |
319 | |
320 | d = fdopendir(fd); | |
321 | if (!d) { | |
03e334a1 | 322 | safe_close(fd); |
83096483 LP |
323 | return -errno; |
324 | } | |
325 | ||
326 | rewinddir(d); | |
327 | ||
d25e100b | 328 | FOREACH_DIRENT(de, d, return -errno) { |
83096483 LP |
329 | |
330 | dirent_ensure_type(d, de); | |
331 | ||
332 | if (de->d_type == DT_DIR) { | |
7fd1b19b | 333 | _cleanup_free_ char *p = NULL; |
d25e100b | 334 | int nfd, q; |
83096483 LP |
335 | |
336 | nfd = openat(fd, de->d_name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW); | |
337 | if (nfd < 0) { | |
338 | if (errno == ENOENT) | |
339 | continue; | |
340 | ||
341 | if (r == 0) | |
342 | r = -errno; | |
343 | continue; | |
344 | } | |
345 | ||
346 | p = path_make_absolute(de->d_name, path); | |
347 | if (!p) { | |
03e334a1 | 348 | safe_close(nfd); |
d9e5e694 | 349 | return -ENOMEM; |
83096483 LP |
350 | } |
351 | ||
352 | /* This will close nfd, regardless whether it succeeds or not */ | |
401017e0 | 353 | q = remove_marked_symlinks_fd(remove_symlinks_to, nfd, p, config_path, lp, restart, changes, n_changes); |
bcafe923 | 354 | if (q < 0 && r == 0) |
83096483 LP |
355 | r = q; |
356 | ||
357 | } else if (de->d_type == DT_LNK) { | |
7fd1b19b | 358 | _cleanup_free_ char *p = NULL, *dest = NULL; |
401017e0 | 359 | const char *rp; |
83096483 | 360 | bool found; |
0ec0deaa | 361 | int q; |
83096483 | 362 | |
7410616c | 363 | if (!unit_name_is_valid(de->d_name, UNIT_NAME_ANY)) |
bcafe923 LP |
364 | continue; |
365 | ||
83096483 | 366 | p = path_make_absolute(de->d_name, path); |
d9e5e694 ZJS |
367 | if (!p) |
368 | return -ENOMEM; | |
83096483 | 369 | |
0ec0deaa | 370 | q = readlink_malloc(p, &dest); |
401017e0 LP |
371 | if (q == -ENOENT) |
372 | continue; | |
83096483 | 373 | if (q < 0) { |
83096483 LP |
374 | if (r == 0) |
375 | r = q; | |
376 | continue; | |
377 | } | |
378 | ||
401017e0 LP |
379 | /* We remove all links pointing to a file or path that is marked, as well as all files sharing |
380 | * the same name as a file that is marked. */ | |
0ec0deaa | 381 | |
83096483 | 382 | found = |
0ec0deaa LP |
383 | set_contains(remove_symlinks_to, dest) || |
384 | set_contains(remove_symlinks_to, basename(dest)) || | |
385 | set_contains(remove_symlinks_to, de->d_name); | |
83096483 | 386 | |
1dacfd2a LP |
387 | if (!found) |
388 | continue; | |
83096483 | 389 | |
401017e0 | 390 | if (unlinkat(fd, de->d_name, 0) < 0 && errno != ENOENT) { |
1dacfd2a LP |
391 | if (r == 0) |
392 | r = -errno; | |
393 | continue; | |
394 | } | |
bcafe923 | 395 | |
1dacfd2a | 396 | path_kill_slashes(p); |
0ec0deaa | 397 | (void) rmdir_parents(p, config_path); |
83096483 | 398 | |
0ec0deaa | 399 | unit_file_changes_add(changes, n_changes, UNIT_FILE_UNLINK, p, NULL); |
1dacfd2a | 400 | |
401017e0 LP |
401 | /* Now, remember the full path (but with the root prefix removed) of the symlink we just |
402 | * removed, and remove any symlinks to it, too */ | |
403 | ||
404 | rp = skip_root(lp, p); | |
405 | q = mark_symlink_for_removal(&remove_symlinks_to, rp ?: p); | |
0ec0deaa LP |
406 | if (q < 0) |
407 | return q; | |
408 | if (q > 0) | |
409 | *restart = true; | |
83096483 LP |
410 | } |
411 | } | |
412 | ||
83096483 LP |
413 | return r; |
414 | } | |
415 | ||
416 | static int remove_marked_symlinks( | |
417 | Set *remove_symlinks_to, | |
418 | const char *config_path, | |
401017e0 | 419 | const LookupPaths *lp, |
83096483 | 420 | UnitFileChange **changes, |
0ec0deaa | 421 | unsigned *n_changes) { |
83096483 | 422 | |
da39f6a6 | 423 | _cleanup_close_ int fd = -1; |
0ec0deaa | 424 | bool restart; |
d25e100b | 425 | int r = 0; |
83096483 LP |
426 | |
427 | assert(config_path); | |
401017e0 | 428 | assert(lp); |
83096483 LP |
429 | |
430 | if (set_size(remove_symlinks_to) <= 0) | |
431 | return 0; | |
432 | ||
433 | fd = open(config_path, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW); | |
434 | if (fd < 0) | |
435 | return -errno; | |
436 | ||
437 | do { | |
438 | int q, cfd; | |
0ec0deaa | 439 | restart = false; |
83096483 | 440 | |
ead34950 | 441 | cfd = fcntl(fd, F_DUPFD_CLOEXEC, 3); |
d25e100b LP |
442 | if (cfd < 0) |
443 | return -errno; | |
83096483 LP |
444 | |
445 | /* This takes possession of cfd and closes it */ | |
401017e0 | 446 | q = remove_marked_symlinks_fd(remove_symlinks_to, cfd, config_path, config_path, lp, &restart, changes, n_changes); |
83096483 LP |
447 | if (r == 0) |
448 | r = q; | |
0ec0deaa | 449 | } while (restart); |
83096483 | 450 | |
83096483 LP |
451 | return r; |
452 | } | |
453 | ||
454 | static int find_symlinks_fd( | |
0ec0deaa | 455 | const char *root_dir, |
83096483 LP |
456 | const char *name, |
457 | int fd, | |
458 | const char *path, | |
459 | const char *config_path, | |
401017e0 | 460 | const LookupPaths *lp, |
83096483 LP |
461 | bool *same_name_link) { |
462 | ||
7fd1b19b | 463 | _cleanup_closedir_ DIR *d = NULL; |
d25e100b LP |
464 | struct dirent *de; |
465 | int r = 0; | |
83096483 LP |
466 | |
467 | assert(name); | |
468 | assert(fd >= 0); | |
469 | assert(path); | |
470 | assert(config_path); | |
401017e0 | 471 | assert(lp); |
83096483 LP |
472 | assert(same_name_link); |
473 | ||
474 | d = fdopendir(fd); | |
475 | if (!d) { | |
03e334a1 | 476 | safe_close(fd); |
83096483 LP |
477 | return -errno; |
478 | } | |
479 | ||
d25e100b | 480 | FOREACH_DIRENT(de, d, return -errno) { |
83096483 LP |
481 | |
482 | dirent_ensure_type(d, de); | |
483 | ||
484 | if (de->d_type == DT_DIR) { | |
7fd1b19b | 485 | _cleanup_free_ char *p = NULL; |
d25e100b | 486 | int nfd, q; |
83096483 LP |
487 | |
488 | nfd = openat(fd, de->d_name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW); | |
489 | if (nfd < 0) { | |
490 | if (errno == ENOENT) | |
491 | continue; | |
492 | ||
493 | if (r == 0) | |
494 | r = -errno; | |
495 | continue; | |
496 | } | |
497 | ||
498 | p = path_make_absolute(de->d_name, path); | |
499 | if (!p) { | |
03e334a1 | 500 | safe_close(nfd); |
ea55addc | 501 | return -ENOMEM; |
83096483 LP |
502 | } |
503 | ||
504 | /* This will close nfd, regardless whether it succeeds or not */ | |
401017e0 | 505 | q = find_symlinks_fd(root_dir, name, nfd, p, config_path, lp, same_name_link); |
ea55addc ZJS |
506 | if (q > 0) |
507 | return 1; | |
83096483 LP |
508 | if (r == 0) |
509 | r = q; | |
510 | ||
511 | } else if (de->d_type == DT_LNK) { | |
7fd1b19b | 512 | _cleanup_free_ char *p = NULL, *dest = NULL; |
83096483 LP |
513 | bool found_path, found_dest, b = false; |
514 | int q; | |
515 | ||
516 | /* Acquire symlink name */ | |
517 | p = path_make_absolute(de->d_name, path); | |
ea55addc ZJS |
518 | if (!p) |
519 | return -ENOMEM; | |
83096483 LP |
520 | |
521 | /* Acquire symlink destination */ | |
0ec0deaa | 522 | q = readlink_malloc(p, &dest); |
d25e100b LP |
523 | if (q == -ENOENT) |
524 | continue; | |
83096483 | 525 | if (q < 0) { |
83096483 LP |
526 | if (r == 0) |
527 | r = q; | |
528 | continue; | |
529 | } | |
530 | ||
0ec0deaa LP |
531 | /* Make absolute */ |
532 | if (!path_is_absolute(dest)) { | |
533 | char *x; | |
534 | ||
535 | x = prefix_root(root_dir, dest); | |
536 | if (!x) | |
537 | return -ENOMEM; | |
538 | ||
539 | free(dest); | |
540 | dest = x; | |
541 | } | |
542 | ||
83096483 LP |
543 | /* Check if the symlink itself matches what we |
544 | * are looking for */ | |
545 | if (path_is_absolute(name)) | |
546 | found_path = path_equal(p, name); | |
547 | else | |
548 | found_path = streq(de->d_name, name); | |
549 | ||
550 | /* Check if what the symlink points to | |
551 | * matches what we are looking for */ | |
552 | if (path_is_absolute(name)) | |
553 | found_dest = path_equal(dest, name); | |
554 | else | |
2b6bf07d | 555 | found_dest = streq(basename(dest), name); |
83096483 | 556 | |
83096483 | 557 | if (found_path && found_dest) { |
7fd1b19b | 558 | _cleanup_free_ char *t = NULL; |
83096483 LP |
559 | |
560 | /* Filter out same name links in the main | |
561 | * config path */ | |
562 | t = path_make_absolute(name, config_path); | |
ea55addc ZJS |
563 | if (!t) |
564 | return -ENOMEM; | |
83096483 LP |
565 | |
566 | b = path_equal(t, p); | |
83096483 LP |
567 | } |
568 | ||
83096483 LP |
569 | if (b) |
570 | *same_name_link = true; | |
ea55addc ZJS |
571 | else if (found_path || found_dest) |
572 | return 1; | |
83096483 LP |
573 | } |
574 | } | |
d25e100b LP |
575 | |
576 | return r; | |
83096483 LP |
577 | } |
578 | ||
579 | static int find_symlinks( | |
0ec0deaa | 580 | const char *root_dir, |
83096483 LP |
581 | const char *name, |
582 | const char *config_path, | |
401017e0 | 583 | const LookupPaths *lp, |
83096483 LP |
584 | bool *same_name_link) { |
585 | ||
586 | int fd; | |
587 | ||
588 | assert(name); | |
589 | assert(config_path); | |
590 | assert(same_name_link); | |
591 | ||
592 | fd = open(config_path, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW); | |
d5891fda ZJS |
593 | if (fd < 0) { |
594 | if (errno == ENOENT) | |
595 | return 0; | |
83096483 | 596 | return -errno; |
d5891fda | 597 | } |
83096483 LP |
598 | |
599 | /* This takes possession of fd and closes it */ | |
401017e0 | 600 | return find_symlinks_fd(root_dir, name, fd, config_path, config_path, lp, same_name_link); |
83096483 LP |
601 | } |
602 | ||
603 | static int find_symlinks_in_scope( | |
604 | UnitFileScope scope, | |
e1c5c2b0 | 605 | const LookupPaths *paths, |
83096483 LP |
606 | const char *name, |
607 | UnitFileState *state) { | |
608 | ||
83096483 | 609 | bool same_name_link_runtime = false, same_name_link = false; |
0ec0deaa | 610 | int r; |
83096483 LP |
611 | |
612 | assert(scope >= 0); | |
613 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
e1c5c2b0 | 614 | assert(paths); |
83096483 LP |
615 | assert(name); |
616 | ||
e1c5c2b0 | 617 | /* First look in the persistent config path */ |
401017e0 | 618 | r = find_symlinks(paths->root_dir, name, paths->persistent_config, paths, &same_name_link); |
718880ba SA |
619 | if (r < 0) |
620 | return r; | |
0ec0deaa LP |
621 | if (r > 0) { |
622 | *state = UNIT_FILE_ENABLED; | |
718880ba | 623 | return r; |
83096483 LP |
624 | } |
625 | ||
0ec0deaa | 626 | /* Then look in runtime config path */ |
401017e0 | 627 | r = find_symlinks(paths->root_dir, name, paths->runtime_config, paths, &same_name_link_runtime); |
83096483 LP |
628 | if (r < 0) |
629 | return r; | |
0ec0deaa LP |
630 | if (r > 0) { |
631 | *state = UNIT_FILE_ENABLED_RUNTIME; | |
83096483 LP |
632 | return r; |
633 | } | |
634 | ||
635 | /* Hmm, we didn't find it, but maybe we found the same name | |
636 | * link? */ | |
0ec0deaa LP |
637 | if (same_name_link) { |
638 | *state = UNIT_FILE_LINKED; | |
639 | return 1; | |
640 | } | |
83096483 LP |
641 | if (same_name_link_runtime) { |
642 | *state = UNIT_FILE_LINKED_RUNTIME; | |
643 | return 1; | |
83096483 LP |
644 | } |
645 | ||
646 | return 0; | |
647 | } | |
648 | ||
0ec0deaa | 649 | static void install_info_free(UnitFileInstallInfo *i) { |
83096483 | 650 | |
0ec0deaa LP |
651 | if (!i) |
652 | return; | |
83096483 | 653 | |
0ec0deaa LP |
654 | free(i->name); |
655 | free(i->path); | |
656 | strv_free(i->aliases); | |
657 | strv_free(i->wanted_by); | |
658 | strv_free(i->required_by); | |
659 | strv_free(i->also); | |
660 | free(i->default_instance); | |
661 | free(i->symlink_target); | |
662 | free(i); | |
663 | } | |
83096483 | 664 | |
0ec0deaa LP |
665 | static OrderedHashmap* install_info_hashmap_free(OrderedHashmap *m) { |
666 | UnitFileInstallInfo *i; | |
83096483 | 667 | |
0ec0deaa LP |
668 | if (!m) |
669 | return NULL; | |
83096483 | 670 | |
0ec0deaa LP |
671 | while ((i = ordered_hashmap_steal_first(m))) |
672 | install_info_free(i); | |
83096483 | 673 | |
0ec0deaa LP |
674 | return ordered_hashmap_free(m); |
675 | } | |
83096483 | 676 | |
0ec0deaa LP |
677 | static void install_context_done(InstallContext *c) { |
678 | assert(c); | |
83096483 | 679 | |
0ec0deaa LP |
680 | c->will_process = install_info_hashmap_free(c->will_process); |
681 | c->have_processed = install_info_hashmap_free(c->have_processed); | |
682 | } | |
83096483 | 683 | |
0ec0deaa LP |
684 | static UnitFileInstallInfo *install_info_find(InstallContext *c, const char *name) { |
685 | UnitFileInstallInfo *i; | |
83096483 | 686 | |
0ec0deaa LP |
687 | i = ordered_hashmap_get(c->have_processed, name); |
688 | if (i) | |
689 | return i; | |
83096483 | 690 | |
0ec0deaa | 691 | return ordered_hashmap_get(c->will_process, name); |
83096483 LP |
692 | } |
693 | ||
694 | static int install_info_add( | |
695 | InstallContext *c, | |
696 | const char *name, | |
0ec0deaa LP |
697 | const char *path, |
698 | UnitFileInstallInfo **ret) { | |
699 | ||
cab6235f | 700 | UnitFileInstallInfo *i = NULL; |
83096483 LP |
701 | int r; |
702 | ||
703 | assert(c); | |
704 | assert(name || path); | |
705 | ||
706 | if (!name) | |
2b6bf07d | 707 | name = basename(path); |
83096483 | 708 | |
7410616c | 709 | if (!unit_name_is_valid(name, UNIT_NAME_ANY)) |
83096483 LP |
710 | return -EINVAL; |
711 | ||
0ec0deaa LP |
712 | i = install_info_find(c, name); |
713 | if (i) { | |
714 | if (ret) | |
715 | *ret = i; | |
83096483 | 716 | return 0; |
0ec0deaa | 717 | } |
83096483 | 718 | |
0ec0deaa | 719 | r = ordered_hashmap_ensure_allocated(&c->will_process, &string_hash_ops); |
83096483 LP |
720 | if (r < 0) |
721 | return r; | |
722 | ||
cab6235f | 723 | i = new0(UnitFileInstallInfo, 1); |
83096483 LP |
724 | if (!i) |
725 | return -ENOMEM; | |
0ec0deaa | 726 | i->type = _UNIT_FILE_TYPE_INVALID; |
83096483 LP |
727 | |
728 | i->name = strdup(name); | |
729 | if (!i->name) { | |
730 | r = -ENOMEM; | |
731 | goto fail; | |
732 | } | |
733 | ||
734 | if (path) { | |
735 | i->path = strdup(path); | |
736 | if (!i->path) { | |
737 | r = -ENOMEM; | |
738 | goto fail; | |
739 | } | |
740 | } | |
741 | ||
0ec0deaa | 742 | r = ordered_hashmap_put(c->will_process, i->name, i); |
83096483 LP |
743 | if (r < 0) |
744 | goto fail; | |
745 | ||
0ec0deaa LP |
746 | if (ret) |
747 | *ret = i; | |
748 | ||
83096483 LP |
749 | return 0; |
750 | ||
751 | fail: | |
d25e100b | 752 | install_info_free(i); |
83096483 LP |
753 | return r; |
754 | } | |
755 | ||
d54c4993 LP |
756 | static int config_parse_also( |
757 | const char *unit, | |
758 | const char *filename, | |
759 | unsigned line, | |
760 | const char *section, | |
761 | unsigned section_line, | |
762 | const char *lvalue, | |
763 | int ltype, | |
764 | const char *rvalue, | |
765 | void *data, | |
766 | void *userdata) { | |
83096483 | 767 | |
cab6235f | 768 | UnitFileInstallInfo *i = userdata; |
0ec0deaa LP |
769 | InstallContext *c = data; |
770 | int r; | |
83096483 LP |
771 | |
772 | assert(filename); | |
773 | assert(lvalue); | |
774 | assert(rvalue); | |
775 | ||
0ec0deaa LP |
776 | for (;;) { |
777 | _cleanup_free_ char *word = NULL; | |
03da6513 | 778 | |
0ec0deaa LP |
779 | r = extract_first_word(&rvalue, &word, NULL, 0); |
780 | if (r < 0) | |
781 | return r; | |
03da6513 SS |
782 | if (r == 0) |
783 | break; | |
83096483 | 784 | |
0ec0deaa | 785 | r = install_info_add(c, word, NULL, NULL); |
d9e5e694 | 786 | if (r < 0) |
83096483 | 787 | return r; |
aedd4012 | 788 | |
0ec0deaa | 789 | r = strv_push(&i->also, word); |
aedd4012 JS |
790 | if (r < 0) |
791 | return r; | |
0ec0deaa LP |
792 | |
793 | word = NULL; | |
83096483 LP |
794 | } |
795 | ||
796 | return 0; | |
797 | } | |
798 | ||
d54c4993 LP |
799 | static int config_parse_default_instance( |
800 | const char *unit, | |
801 | const char *filename, | |
802 | unsigned line, | |
803 | const char *section, | |
804 | unsigned section_line, | |
805 | const char *lvalue, | |
806 | int ltype, | |
807 | const char *rvalue, | |
808 | void *data, | |
809 | void *userdata) { | |
810 | ||
cab6235f | 811 | UnitFileInstallInfo *i = data; |
d54c4993 LP |
812 | char *printed; |
813 | int r; | |
814 | ||
815 | assert(filename); | |
816 | assert(lvalue); | |
817 | assert(rvalue); | |
818 | ||
819 | r = install_full_printf(i, rvalue, &printed); | |
820 | if (r < 0) | |
821 | return r; | |
822 | ||
d9ab174b AH |
823 | if (!unit_instance_is_valid(printed)) { |
824 | free(printed); | |
d54c4993 | 825 | return -EINVAL; |
d9ab174b | 826 | } |
d54c4993 LP |
827 | |
828 | free(i->default_instance); | |
829 | i->default_instance = printed; | |
830 | ||
831 | return 0; | |
832 | } | |
833 | ||
83096483 LP |
834 | static int unit_file_load( |
835 | InstallContext *c, | |
cab6235f | 836 | UnitFileInstallInfo *info, |
83096483 | 837 | const char *path, |
0ec0deaa | 838 | SearchFlags flags) { |
83096483 | 839 | |
f975e971 | 840 | const ConfigTableItem items[] = { |
d54c4993 LP |
841 | { "Install", "Alias", config_parse_strv, 0, &info->aliases }, |
842 | { "Install", "WantedBy", config_parse_strv, 0, &info->wanted_by }, | |
843 | { "Install", "RequiredBy", config_parse_strv, 0, &info->required_by }, | |
844 | { "Install", "DefaultInstance", config_parse_default_instance, 0, info }, | |
845 | { "Install", "Also", config_parse_also, 0, c }, | |
d54c4993 | 846 | {} |
83096483 LP |
847 | }; |
848 | ||
7fd1b19b | 849 | _cleanup_fclose_ FILE *f = NULL; |
0ec0deaa LP |
850 | _cleanup_close_ int fd = -1; |
851 | struct stat st; | |
852 | int r; | |
83096483 LP |
853 | |
854 | assert(c); | |
855 | assert(info); | |
856 | assert(path); | |
857 | ||
0ec0deaa LP |
858 | if (!(flags & SEARCH_LOAD)) { |
859 | r = lstat(path, &st); | |
860 | if (r < 0) | |
d25e100b LP |
861 | return -errno; |
862 | ||
0ec0deaa LP |
863 | if (null_or_empty(&st)) |
864 | info->type = UNIT_FILE_TYPE_MASKED; | |
865 | else if (S_ISREG(st.st_mode)) | |
866 | info->type = UNIT_FILE_TYPE_REGULAR; | |
867 | else if (S_ISLNK(st.st_mode)) | |
868 | return -ELOOP; | |
869 | else if (S_ISDIR(st.st_mode)) | |
870 | return -EISDIR; | |
871 | else | |
872 | return -ENOTTY; | |
873 | ||
d25e100b | 874 | return 0; |
e94937df LN |
875 | } |
876 | ||
0ec0deaa | 877 | fd = open(path, O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW); |
83096483 LP |
878 | if (fd < 0) |
879 | return -errno; | |
0ec0deaa LP |
880 | if (fstat(fd, &st) < 0) |
881 | return -errno; | |
882 | if (null_or_empty(&st)) { | |
d986e364 | 883 | info->type = UNIT_FILE_TYPE_MASKED; |
0ec0deaa LP |
884 | return 0; |
885 | } | |
886 | if (S_ISDIR(st.st_mode)) | |
887 | return -EISDIR; | |
888 | if (!S_ISREG(st.st_mode)) | |
889 | return -ENOTTY; | |
83096483 LP |
890 | |
891 | f = fdopen(fd, "re"); | |
0ec0deaa LP |
892 | if (!f) |
893 | return -errno; | |
894 | fd = -1; | |
83096483 | 895 | |
36f822c4 ZJS |
896 | r = config_parse(NULL, path, f, |
897 | NULL, | |
898 | config_item_table_lookup, items, | |
899 | true, true, false, info); | |
83096483 LP |
900 | if (r < 0) |
901 | return r; | |
902 | ||
0ec0deaa | 903 | info->type = UNIT_FILE_TYPE_REGULAR; |
aedd4012 | 904 | |
78d54bd4 | 905 | return |
693eb9a2 LP |
906 | (int) strv_length(info->aliases) + |
907 | (int) strv_length(info->wanted_by) + | |
908 | (int) strv_length(info->required_by); | |
83096483 LP |
909 | } |
910 | ||
0ec0deaa LP |
911 | static int unit_file_load_or_readlink( |
912 | InstallContext *c, | |
913 | UnitFileInstallInfo *info, | |
914 | const char *path, | |
915 | const char *root_dir, | |
916 | SearchFlags flags) { | |
917 | ||
401017e0 | 918 | _cleanup_free_ char *target = NULL; |
0ec0deaa LP |
919 | int r; |
920 | ||
401017e0 | 921 | r = unit_file_load(c, info, path, flags); |
0ec0deaa LP |
922 | if (r != -ELOOP) |
923 | return r; | |
924 | ||
925 | /* This is a symlink, let's read it. */ | |
926 | ||
401017e0 | 927 | r = readlink_malloc(path, &target); |
0ec0deaa LP |
928 | if (r < 0) |
929 | return r; | |
930 | ||
401017e0 | 931 | if (path_equal(target, "/dev/null")) |
0ec0deaa LP |
932 | info->type = UNIT_FILE_TYPE_MASKED; |
933 | else { | |
934 | const char *bn; | |
935 | UnitType a, b; | |
936 | ||
401017e0 | 937 | bn = basename(target); |
0ec0deaa LP |
938 | |
939 | if (unit_name_is_valid(info->name, UNIT_NAME_PLAIN)) { | |
940 | ||
941 | if (!unit_name_is_valid(bn, UNIT_NAME_PLAIN)) | |
942 | return -EINVAL; | |
943 | ||
944 | } else if (unit_name_is_valid(info->name, UNIT_NAME_INSTANCE)) { | |
945 | ||
946 | if (!unit_name_is_valid(bn, UNIT_NAME_INSTANCE|UNIT_NAME_TEMPLATE)) | |
947 | return -EINVAL; | |
948 | ||
949 | } else if (unit_name_is_valid(info->name, UNIT_NAME_TEMPLATE)) { | |
950 | ||
951 | if (!unit_name_is_valid(bn, UNIT_NAME_TEMPLATE)) | |
952 | return -EINVAL; | |
953 | } else | |
954 | return -EINVAL; | |
955 | ||
956 | /* Enforce that the symlink destination does not | |
957 | * change the unit file type. */ | |
958 | ||
959 | a = unit_name_to_type(info->name); | |
960 | b = unit_name_to_type(bn); | |
961 | if (a < 0 || b < 0 || a != b) | |
962 | return -EINVAL; | |
963 | ||
401017e0 LP |
964 | if (path_is_absolute(target)) |
965 | /* This is an absolute path, prefix the root so that we always deal with fully qualified paths */ | |
966 | info->symlink_target = prefix_root(root_dir, target); | |
967 | else | |
968 | /* This is a relative path, take it relative to the dir the symlink is located in. */ | |
969 | info->symlink_target = file_in_same_dir(path, target); | |
970 | if (!info->symlink_target) | |
971 | return -ENOMEM; | |
972 | ||
0ec0deaa | 973 | info->type = UNIT_FILE_TYPE_SYMLINK; |
0ec0deaa LP |
974 | } |
975 | ||
976 | return 0; | |
977 | } | |
978 | ||
83096483 LP |
979 | static int unit_file_search( |
980 | InstallContext *c, | |
cab6235f | 981 | UnitFileInstallInfo *info, |
a8ffe6fb | 982 | const LookupPaths *paths, |
0ec0deaa | 983 | SearchFlags flags) { |
83096483 LP |
984 | |
985 | char **p; | |
986 | int r; | |
987 | ||
988 | assert(c); | |
989 | assert(info); | |
990 | assert(paths); | |
991 | ||
0ec0deaa LP |
992 | /* Was this unit already loaded? */ |
993 | if (info->type != _UNIT_FILE_TYPE_INVALID) | |
994 | return 0; | |
995 | ||
278fa575 | 996 | if (info->path) |
e4bb56c7 | 997 | return unit_file_load_or_readlink(c, info, info->path, paths->root_dir, flags); |
83096483 LP |
998 | |
999 | assert(info->name); | |
1000 | ||
a3c4eb07 | 1001 | STRV_FOREACH(p, paths->search_path) { |
e50bd775 | 1002 | _cleanup_free_ char *path = NULL; |
83096483 | 1003 | |
278fa575 | 1004 | path = strjoin(*p, "/", info->name, NULL); |
83096483 LP |
1005 | if (!path) |
1006 | return -ENOMEM; | |
1007 | ||
e4bb56c7 | 1008 | r = unit_file_load_or_readlink(c, info, path, paths->root_dir, flags); |
0ec0deaa LP |
1009 | if (r < 0) { |
1010 | if (r != -ENOENT) | |
1011 | return r; | |
1012 | } else { | |
83096483 | 1013 | info->path = path; |
62b00233 | 1014 | path = NULL; |
e50bd775 LP |
1015 | return r; |
1016 | } | |
e50bd775 | 1017 | } |
62b00233 | 1018 | |
7410616c | 1019 | if (unit_name_is_valid(info->name, UNIT_NAME_INSTANCE)) { |
29283ea4 | 1020 | |
e50bd775 LP |
1021 | /* Unit file doesn't exist, however instance |
1022 | * enablement was requested. We will check if it is | |
1023 | * possible to load template unit file. */ | |
29283ea4 | 1024 | |
de228aab | 1025 | _cleanup_free_ char *template = NULL; |
e50bd775 | 1026 | |
7410616c LP |
1027 | r = unit_name_template(info->name, &template); |
1028 | if (r < 0) | |
1029 | return r; | |
e50bd775 | 1030 | |
a3c4eb07 | 1031 | STRV_FOREACH(p, paths->search_path) { |
e50bd775 LP |
1032 | _cleanup_free_ char *path = NULL; |
1033 | ||
278fa575 | 1034 | path = strjoin(*p, "/", template, NULL); |
62b00233 ZJS |
1035 | if (!path) |
1036 | return -ENOMEM; | |
29283ea4 | 1037 | |
e4bb56c7 | 1038 | r = unit_file_load_or_readlink(c, info, path, paths->root_dir, flags); |
0ec0deaa LP |
1039 | if (r < 0) { |
1040 | if (r != -ENOENT) | |
1041 | return r; | |
1042 | } else { | |
62b00233 ZJS |
1043 | info->path = path; |
1044 | path = NULL; | |
e50bd775 | 1045 | return r; |
29283ea4 | 1046 | } |
29283ea4 | 1047 | } |
83096483 LP |
1048 | } |
1049 | ||
1050 | return -ENOENT; | |
1051 | } | |
1052 | ||
0ec0deaa LP |
1053 | static int install_info_follow( |
1054 | InstallContext *c, | |
1055 | UnitFileInstallInfo *i, | |
83096483 | 1056 | const char *root_dir, |
0ec0deaa LP |
1057 | SearchFlags flags) { |
1058 | ||
1059 | assert(c); | |
1060 | assert(i); | |
1061 | ||
1062 | if (i->type != UNIT_FILE_TYPE_SYMLINK) | |
1063 | return -EINVAL; | |
1064 | if (!i->symlink_target) | |
1065 | return -EINVAL; | |
1066 | ||
1067 | /* If the basename doesn't match, the caller should add a | |
1068 | * complete new entry for this. */ | |
1069 | ||
1070 | if (!streq(basename(i->symlink_target), i->name)) | |
1071 | return -EXDEV; | |
1072 | ||
1073 | free(i->path); | |
1074 | i->path = i->symlink_target; | |
1075 | i->symlink_target = NULL; | |
1076 | i->type = _UNIT_FILE_TYPE_INVALID; | |
1077 | ||
1078 | return unit_file_load_or_readlink(c, i, i->path, root_dir, flags); | |
1079 | } | |
1080 | ||
1081 | static int install_info_traverse( | |
1082 | UnitFileScope scope, | |
1083 | InstallContext *c, | |
0ec0deaa LP |
1084 | const LookupPaths *paths, |
1085 | UnitFileInstallInfo *start, | |
1086 | SearchFlags flags, | |
1087 | UnitFileInstallInfo **ret) { | |
83096483 | 1088 | |
cab6235f | 1089 | UnitFileInstallInfo *i; |
0ec0deaa | 1090 | unsigned k = 0; |
83096483 LP |
1091 | int r; |
1092 | ||
1093 | assert(paths); | |
0ec0deaa LP |
1094 | assert(start); |
1095 | assert(c); | |
83096483 | 1096 | |
e4bb56c7 | 1097 | r = unit_file_search(c, start, paths, flags); |
83096483 LP |
1098 | if (r < 0) |
1099 | return r; | |
1100 | ||
0ec0deaa LP |
1101 | i = start; |
1102 | while (i->type == UNIT_FILE_TYPE_SYMLINK) { | |
1103 | /* Follow the symlink */ | |
83096483 | 1104 | |
0ec0deaa LP |
1105 | if (++k > UNIT_FILE_FOLLOW_SYMLINK_MAX) |
1106 | return -ELOOP; | |
83096483 | 1107 | |
e1c5c2b0 LP |
1108 | if (!(flags & SEARCH_FOLLOW_CONFIG_SYMLINKS)) { |
1109 | r = path_is_config(paths, i->path); | |
1110 | if (r < 0) | |
1111 | return r; | |
1112 | if (r > 0) | |
1113 | return -ELOOP; | |
1114 | } | |
83096483 | 1115 | |
e4bb56c7 | 1116 | r = install_info_follow(c, i, paths->root_dir, flags); |
0ec0deaa LP |
1117 | if (r < 0) { |
1118 | _cleanup_free_ char *buffer = NULL; | |
1119 | const char *bn; | |
83096483 | 1120 | |
0ec0deaa LP |
1121 | if (r != -EXDEV) |
1122 | return r; | |
83096483 | 1123 | |
0ec0deaa LP |
1124 | /* Target has a different name, create a new |
1125 | * install info object for that, and continue | |
1126 | * with that. */ | |
83096483 | 1127 | |
0ec0deaa | 1128 | bn = basename(i->symlink_target); |
83096483 | 1129 | |
0ec0deaa LP |
1130 | if (unit_name_is_valid(i->name, UNIT_NAME_INSTANCE) && |
1131 | unit_name_is_valid(bn, UNIT_NAME_TEMPLATE)) { | |
83096483 | 1132 | |
0ec0deaa LP |
1133 | _cleanup_free_ char *instance = NULL; |
1134 | ||
1135 | r = unit_name_to_instance(i->name, &instance); | |
1136 | if (r < 0) | |
1137 | return r; | |
1138 | ||
1139 | r = unit_name_replace_instance(bn, instance, &buffer); | |
1140 | if (r < 0) | |
1141 | return r; | |
1142 | ||
1143 | bn = buffer; | |
1144 | } | |
1145 | ||
1146 | r = install_info_add(c, bn, NULL, &i); | |
1147 | if (r < 0) | |
1148 | return r; | |
1149 | ||
e4bb56c7 | 1150 | r = unit_file_search(c, i, paths, flags); |
0ec0deaa LP |
1151 | if (r < 0) |
1152 | return r; | |
1153 | } | |
1154 | ||
1155 | /* Try again, with the new target we found. */ | |
83096483 LP |
1156 | } |
1157 | ||
0ec0deaa LP |
1158 | if (ret) |
1159 | *ret = i; | |
83096483 | 1160 | |
0ec0deaa LP |
1161 | return 0; |
1162 | } | |
83096483 | 1163 | |
401017e0 LP |
1164 | static int install_info_add_auto( |
1165 | InstallContext *c, | |
1166 | const LookupPaths *paths, | |
1167 | const char *name_or_path, | |
1168 | UnitFileInstallInfo **ret) { | |
1169 | ||
1170 | assert(c); | |
1171 | assert(name_or_path); | |
1172 | ||
1173 | if (path_is_absolute(name_or_path)) { | |
1174 | const char *pp; | |
1175 | ||
1176 | pp = prefix_roota(paths->root_dir, name_or_path); | |
1177 | ||
1178 | return install_info_add(c, NULL, pp, ret); | |
1179 | } else | |
1180 | return install_info_add(c, name_or_path, NULL, ret); | |
1181 | } | |
1182 | ||
0ec0deaa LP |
1183 | static int install_info_discover( |
1184 | UnitFileScope scope, | |
1185 | InstallContext *c, | |
0ec0deaa LP |
1186 | const LookupPaths *paths, |
1187 | const char *name, | |
1188 | SearchFlags flags, | |
1189 | UnitFileInstallInfo **ret) { | |
83096483 | 1190 | |
0ec0deaa LP |
1191 | UnitFileInstallInfo *i; |
1192 | int r; | |
83096483 | 1193 | |
0ec0deaa LP |
1194 | assert(c); |
1195 | assert(paths); | |
1196 | assert(name); | |
1197 | ||
401017e0 | 1198 | r = install_info_add_auto(c, paths, name, &i); |
1f8c4604 LP |
1199 | if (r < 0) |
1200 | return r; | |
83096483 | 1201 | |
e4bb56c7 | 1202 | return install_info_traverse(scope, c, paths, i, flags, ret); |
83096483 LP |
1203 | } |
1204 | ||
1205 | static int install_info_symlink_alias( | |
cab6235f | 1206 | UnitFileInstallInfo *i, |
401017e0 | 1207 | const LookupPaths *paths, |
83096483 LP |
1208 | const char *config_path, |
1209 | bool force, | |
1210 | UnitFileChange **changes, | |
1211 | unsigned *n_changes) { | |
1212 | ||
1213 | char **s; | |
1214 | int r = 0, q; | |
1215 | ||
1216 | assert(i); | |
401017e0 | 1217 | assert(paths); |
83096483 LP |
1218 | assert(config_path); |
1219 | ||
1220 | STRV_FOREACH(s, i->aliases) { | |
7fd1b19b | 1221 | _cleanup_free_ char *alias_path = NULL, *dst = NULL; |
401017e0 | 1222 | const char *rp; |
83096483 | 1223 | |
19f6d710 LP |
1224 | q = install_full_printf(i, *s, &dst); |
1225 | if (q < 0) | |
1226 | return q; | |
83096483 | 1227 | |
7584d236 | 1228 | alias_path = path_make_absolute(dst, config_path); |
83096483 LP |
1229 | if (!alias_path) |
1230 | return -ENOMEM; | |
1231 | ||
401017e0 LP |
1232 | rp = skip_root(paths, i->path); |
1233 | ||
1234 | q = create_symlink(rp ?: i->path, alias_path, force, changes, n_changes); | |
83096483 LP |
1235 | if (r == 0) |
1236 | r = q; | |
1237 | } | |
1238 | ||
1239 | return r; | |
1240 | } | |
1241 | ||
1242 | static int install_info_symlink_wants( | |
cab6235f | 1243 | UnitFileInstallInfo *i, |
401017e0 | 1244 | const LookupPaths *paths, |
83096483 | 1245 | const char *config_path, |
d54c4993 LP |
1246 | char **list, |
1247 | const char *suffix, | |
83096483 LP |
1248 | bool force, |
1249 | UnitFileChange **changes, | |
1250 | unsigned *n_changes) { | |
1251 | ||
d54c4993 LP |
1252 | _cleanup_free_ char *buf = NULL; |
1253 | const char *n; | |
83096483 LP |
1254 | char **s; |
1255 | int r = 0, q; | |
1256 | ||
1257 | assert(i); | |
401017e0 | 1258 | assert(paths); |
83096483 LP |
1259 | assert(config_path); |
1260 | ||
7410616c | 1261 | if (unit_name_is_valid(i->name, UNIT_NAME_TEMPLATE)) { |
0a327d75 LP |
1262 | |
1263 | /* Don't install any symlink if there's no default | |
1264 | * instance configured */ | |
1265 | ||
1266 | if (!i->default_instance) | |
1267 | return 0; | |
1268 | ||
7410616c LP |
1269 | r = unit_name_replace_instance(i->name, i->default_instance, &buf); |
1270 | if (r < 0) | |
1271 | return r; | |
83096483 | 1272 | |
d54c4993 LP |
1273 | n = buf; |
1274 | } else | |
1275 | n = i->name; | |
78d54bd4 | 1276 | |
d54c4993 | 1277 | STRV_FOREACH(s, list) { |
7fd1b19b | 1278 | _cleanup_free_ char *path = NULL, *dst = NULL; |
401017e0 | 1279 | const char *rp; |
78d54bd4 | 1280 | |
19f6d710 LP |
1281 | q = install_full_printf(i, *s, &dst); |
1282 | if (q < 0) | |
1283 | return q; | |
7584d236 | 1284 | |
7410616c | 1285 | if (!unit_name_is_valid(dst, UNIT_NAME_ANY)) { |
78d54bd4 LP |
1286 | r = -EINVAL; |
1287 | continue; | |
1288 | } | |
1289 | ||
d54c4993 LP |
1290 | path = strjoin(config_path, "/", dst, suffix, n, NULL); |
1291 | if (!path) | |
78d54bd4 LP |
1292 | return -ENOMEM; |
1293 | ||
401017e0 LP |
1294 | rp = skip_root(paths, i->path); |
1295 | ||
1296 | q = create_symlink(rp ?: i->path, path, force, changes, n_changes); | |
78d54bd4 LP |
1297 | if (r == 0) |
1298 | r = q; | |
1299 | } | |
1300 | ||
1301 | return r; | |
1302 | } | |
1303 | ||
83096483 | 1304 | static int install_info_symlink_link( |
cab6235f | 1305 | UnitFileInstallInfo *i, |
a8ffe6fb | 1306 | const LookupPaths *paths, |
83096483 LP |
1307 | const char *config_path, |
1308 | bool force, | |
1309 | UnitFileChange **changes, | |
1310 | unsigned *n_changes) { | |
1311 | ||
7fd1b19b | 1312 | _cleanup_free_ char *path = NULL; |
401017e0 | 1313 | const char *rp; |
1dacfd2a | 1314 | int r; |
83096483 LP |
1315 | |
1316 | assert(i); | |
1317 | assert(paths); | |
1318 | assert(config_path); | |
1319 | assert(i->path); | |
1320 | ||
32c0ed7b | 1321 | r = in_search_path(paths, i->path); |
83096483 LP |
1322 | if (r != 0) |
1323 | return r; | |
1324 | ||
1dacfd2a LP |
1325 | path = strjoin(config_path, "/", i->name, NULL); |
1326 | if (!path) | |
83096483 LP |
1327 | return -ENOMEM; |
1328 | ||
401017e0 LP |
1329 | rp = skip_root(paths, i->path); |
1330 | ||
1331 | return create_symlink(rp ?: i->path, path, force, changes, n_changes); | |
83096483 LP |
1332 | } |
1333 | ||
1334 | static int install_info_apply( | |
cab6235f | 1335 | UnitFileInstallInfo *i, |
a8ffe6fb | 1336 | const LookupPaths *paths, |
83096483 LP |
1337 | const char *config_path, |
1338 | bool force, | |
1339 | UnitFileChange **changes, | |
1340 | unsigned *n_changes) { | |
1341 | ||
1342 | int r, q; | |
1343 | ||
1344 | assert(i); | |
1345 | assert(paths); | |
1346 | assert(config_path); | |
1347 | ||
0ec0deaa LP |
1348 | if (i->type != UNIT_FILE_TYPE_REGULAR) |
1349 | return 0; | |
1350 | ||
401017e0 | 1351 | r = install_info_symlink_alias(i, paths, config_path, force, changes, n_changes); |
83096483 | 1352 | |
401017e0 | 1353 | q = install_info_symlink_wants(i, paths, config_path, i->wanted_by, ".wants/", force, changes, n_changes); |
83096483 LP |
1354 | if (r == 0) |
1355 | r = q; | |
1356 | ||
401017e0 | 1357 | q = install_info_symlink_wants(i, paths, config_path, i->required_by, ".requires/", force, changes, n_changes); |
78d54bd4 LP |
1358 | if (r == 0) |
1359 | r = q; | |
1360 | ||
e4bb56c7 | 1361 | q = install_info_symlink_link(i, paths, config_path, force, changes, n_changes); |
83096483 LP |
1362 | if (r == 0) |
1363 | r = q; | |
1364 | ||
1365 | return r; | |
1366 | } | |
1367 | ||
1368 | static int install_context_apply( | |
0ec0deaa | 1369 | UnitFileScope scope, |
83096483 | 1370 | InstallContext *c, |
a8ffe6fb | 1371 | const LookupPaths *paths, |
83096483 | 1372 | const char *config_path, |
83096483 | 1373 | bool force, |
0ec0deaa | 1374 | SearchFlags flags, |
83096483 LP |
1375 | UnitFileChange **changes, |
1376 | unsigned *n_changes) { | |
1377 | ||
cab6235f | 1378 | UnitFileInstallInfo *i; |
0ec0deaa | 1379 | int r; |
83096483 LP |
1380 | |
1381 | assert(c); | |
1382 | assert(paths); | |
1383 | assert(config_path); | |
1384 | ||
0ec0deaa | 1385 | if (ordered_hashmap_isempty(c->will_process)) |
d25e100b | 1386 | return 0; |
83096483 | 1387 | |
0ec0deaa | 1388 | r = ordered_hashmap_ensure_allocated(&c->have_processed, &string_hash_ops); |
d25e100b LP |
1389 | if (r < 0) |
1390 | return r; | |
83096483 | 1391 | |
2d5c93c7 | 1392 | r = 0; |
0ec0deaa LP |
1393 | while ((i = ordered_hashmap_first(c->will_process))) { |
1394 | int q; | |
83096483 | 1395 | |
0ec0deaa LP |
1396 | q = ordered_hashmap_move_one(c->have_processed, c->will_process, i->name); |
1397 | if (q < 0) | |
1398 | return q; | |
83096483 | 1399 | |
e4bb56c7 | 1400 | r = install_info_traverse(scope, c, paths, i, flags, NULL); |
0ec0deaa | 1401 | if (r < 0) |
83096483 | 1402 | return r; |
0ec0deaa LP |
1403 | |
1404 | if (i->type != UNIT_FILE_TYPE_REGULAR) | |
1405 | continue; | |
83096483 | 1406 | |
e4bb56c7 | 1407 | q = install_info_apply(i, paths, config_path, force, changes, n_changes); |
0ec0deaa LP |
1408 | if (r >= 0) { |
1409 | if (q < 0) | |
1410 | r = q; | |
1411 | else | |
1412 | r+= q; | |
1413 | } | |
83096483 LP |
1414 | } |
1415 | ||
1416 | return r; | |
1417 | } | |
1418 | ||
1419 | static int install_context_mark_for_removal( | |
0ec0deaa | 1420 | UnitFileScope scope, |
83096483 | 1421 | InstallContext *c, |
a8ffe6fb | 1422 | const LookupPaths *paths, |
83096483 | 1423 | Set **remove_symlinks_to, |
e4bb56c7 | 1424 | const char *config_path) { |
83096483 | 1425 | |
cab6235f | 1426 | UnitFileInstallInfo *i; |
0ec0deaa | 1427 | int r; |
83096483 LP |
1428 | |
1429 | assert(c); | |
1430 | assert(paths); | |
1431 | assert(config_path); | |
1432 | ||
1433 | /* Marks all items for removal */ | |
1434 | ||
0ec0deaa | 1435 | if (ordered_hashmap_isempty(c->will_process)) |
d25e100b | 1436 | return 0; |
83096483 | 1437 | |
0ec0deaa | 1438 | r = ordered_hashmap_ensure_allocated(&c->have_processed, &string_hash_ops); |
d25e100b LP |
1439 | if (r < 0) |
1440 | return r; | |
83096483 | 1441 | |
0ec0deaa | 1442 | while ((i = ordered_hashmap_first(c->will_process))) { |
83096483 | 1443 | |
0ec0deaa LP |
1444 | r = ordered_hashmap_move_one(c->have_processed, c->will_process, i->name); |
1445 | if (r < 0) | |
83096483 | 1446 | return r; |
29283ea4 | 1447 | |
e4bb56c7 | 1448 | r = install_info_traverse(scope, c, paths, i, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS, NULL); |
0ec0deaa LP |
1449 | if (r < 0) |
1450 | return r; | |
1451 | ||
1452 | if (i->type != UNIT_FILE_TYPE_REGULAR) | |
1453 | continue; | |
1454 | ||
1455 | r = mark_symlink_for_removal(remove_symlinks_to, i->name); | |
1456 | if (r < 0) | |
1457 | return r; | |
1458 | } | |
1459 | ||
1460 | return 0; | |
1461 | } | |
1462 | ||
1463 | int unit_file_mask( | |
1464 | UnitFileScope scope, | |
1465 | bool runtime, | |
1466 | const char *root_dir, | |
1467 | char **files, | |
1468 | bool force, | |
1469 | UnitFileChange **changes, | |
1470 | unsigned *n_changes) { | |
1471 | ||
e1c5c2b0 LP |
1472 | _cleanup_lookup_paths_free_ LookupPaths paths = {}; |
1473 | const char *config_path; | |
0ec0deaa LP |
1474 | char **i; |
1475 | int r; | |
1476 | ||
1477 | assert(scope >= 0); | |
1478 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
1479 | ||
463d0d15 | 1480 | r = lookup_paths_init(&paths, scope, root_dir); |
0ec0deaa LP |
1481 | if (r < 0) |
1482 | return r; | |
1483 | ||
e1c5c2b0 LP |
1484 | config_path = runtime ? paths.runtime_config : paths.persistent_config; |
1485 | ||
0ec0deaa LP |
1486 | STRV_FOREACH(i, files) { |
1487 | _cleanup_free_ char *path = NULL; | |
1488 | int q; | |
1489 | ||
1490 | if (!unit_name_is_valid(*i, UNIT_NAME_ANY)) { | |
1491 | if (r == 0) | |
1492 | r = -EINVAL; | |
1493 | continue; | |
1494 | } | |
1495 | ||
e1c5c2b0 | 1496 | path = path_make_absolute(*i, config_path); |
0ec0deaa LP |
1497 | if (!path) |
1498 | return -ENOMEM; | |
29283ea4 | 1499 | |
0ec0deaa LP |
1500 | q = create_symlink("/dev/null", path, force, changes, n_changes); |
1501 | if (q < 0 && r >= 0) | |
83096483 LP |
1502 | r = q; |
1503 | } | |
1504 | ||
1505 | return r; | |
1506 | } | |
1507 | ||
0ec0deaa LP |
1508 | int unit_file_unmask( |
1509 | UnitFileScope scope, | |
1510 | bool runtime, | |
1511 | const char *root_dir, | |
1512 | char **files, | |
1513 | UnitFileChange **changes, | |
1514 | unsigned *n_changes) { | |
1515 | ||
e1c5c2b0 | 1516 | _cleanup_lookup_paths_free_ LookupPaths paths = {}; |
0ec0deaa | 1517 | _cleanup_set_free_free_ Set *remove_symlinks_to = NULL; |
0ec0deaa LP |
1518 | _cleanup_free_ char **todo = NULL; |
1519 | size_t n_todo = 0, n_allocated = 0; | |
e1c5c2b0 | 1520 | const char *config_path; |
0ec0deaa LP |
1521 | char **i; |
1522 | int r, q; | |
1523 | ||
1524 | assert(scope >= 0); | |
1525 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
1526 | ||
463d0d15 | 1527 | r = lookup_paths_init(&paths, scope, root_dir); |
0ec0deaa LP |
1528 | if (r < 0) |
1529 | return r; | |
1530 | ||
e1c5c2b0 LP |
1531 | config_path = runtime ? paths.runtime_config : paths.persistent_config; |
1532 | ||
0ec0deaa LP |
1533 | STRV_FOREACH(i, files) { |
1534 | _cleanup_free_ char *path = NULL; | |
1535 | ||
1536 | if (!unit_name_is_valid(*i, UNIT_NAME_ANY)) | |
1537 | return -EINVAL; | |
1538 | ||
1539 | path = path_make_absolute(*i, config_path); | |
1540 | if (!path) | |
1541 | return -ENOMEM; | |
1542 | ||
1543 | r = null_or_empty_path(path); | |
1544 | if (r == -ENOENT) | |
1545 | continue; | |
1546 | if (r < 0) | |
1547 | return r; | |
1548 | if (r == 0) | |
1549 | continue; | |
1550 | ||
1551 | if (!GREEDY_REALLOC0(todo, n_allocated, n_todo + 2)) | |
1552 | return -ENOMEM; | |
1553 | ||
1554 | todo[n_todo++] = *i; | |
1555 | } | |
1556 | ||
1557 | strv_uniq(todo); | |
1558 | ||
1559 | r = 0; | |
1560 | STRV_FOREACH(i, todo) { | |
1561 | _cleanup_free_ char *path = NULL; | |
401017e0 | 1562 | const char *rp; |
0ec0deaa LP |
1563 | |
1564 | path = path_make_absolute(*i, config_path); | |
1565 | if (!path) | |
1566 | return -ENOMEM; | |
1567 | ||
1568 | if (unlink(path) < 0) { | |
1569 | if (errno != -ENOENT && r >= 0) | |
1570 | r = -errno; | |
0ec0deaa | 1571 | |
401017e0 | 1572 | continue; |
0ec0deaa | 1573 | } |
401017e0 LP |
1574 | |
1575 | unit_file_changes_add(changes, n_changes, UNIT_FILE_UNLINK, path, NULL); | |
1576 | ||
1577 | rp = skip_root(&paths, path); | |
1578 | q = mark_symlink_for_removal(&remove_symlinks_to, rp ?: path); | |
1579 | if (q < 0) | |
1580 | return q; | |
0ec0deaa LP |
1581 | } |
1582 | ||
401017e0 | 1583 | q = remove_marked_symlinks(remove_symlinks_to, config_path, &paths, changes, n_changes); |
0ec0deaa LP |
1584 | if (r >= 0) |
1585 | r = q; | |
1586 | ||
1587 | return r; | |
1588 | } | |
1589 | ||
1590 | int unit_file_link( | |
e94937df LN |
1591 | UnitFileScope scope, |
1592 | bool runtime, | |
1593 | const char *root_dir, | |
1594 | char **files, | |
e94937df LN |
1595 | bool force, |
1596 | UnitFileChange **changes, | |
1597 | unsigned *n_changes) { | |
1598 | ||
1599 | _cleanup_lookup_paths_free_ LookupPaths paths = {}; | |
0ec0deaa LP |
1600 | _cleanup_free_ char **todo = NULL; |
1601 | size_t n_todo = 0, n_allocated = 0; | |
e1c5c2b0 | 1602 | const char *config_path; |
e94937df | 1603 | char **i; |
0ec0deaa | 1604 | int r, q; |
e94937df LN |
1605 | |
1606 | assert(scope >= 0); | |
1607 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
1608 | ||
463d0d15 | 1609 | r = lookup_paths_init(&paths, scope, root_dir); |
e94937df LN |
1610 | if (r < 0) |
1611 | return r; | |
1612 | ||
e1c5c2b0 | 1613 | config_path = runtime ? paths.runtime_config : paths.persistent_config; |
e94937df LN |
1614 | |
1615 | STRV_FOREACH(i, files) { | |
0ec0deaa LP |
1616 | _cleanup_free_ char *full = NULL; |
1617 | struct stat st; | |
1618 | char *fn; | |
e94937df | 1619 | |
0ec0deaa LP |
1620 | if (!path_is_absolute(*i)) |
1621 | return -EINVAL; | |
e94937df | 1622 | |
0ec0deaa LP |
1623 | fn = basename(*i); |
1624 | if (!unit_name_is_valid(fn, UNIT_NAME_ANY)) | |
1625 | return -EINVAL; | |
1626 | ||
e4bb56c7 | 1627 | full = prefix_root(paths.root_dir, *i); |
0ec0deaa LP |
1628 | if (!full) |
1629 | return -ENOMEM; | |
1630 | ||
1631 | if (lstat(full, &st) < 0) | |
1632 | return -errno; | |
1633 | if (S_ISLNK(st.st_mode)) | |
1634 | return -ELOOP; | |
1635 | if (S_ISDIR(st.st_mode)) | |
1636 | return -EISDIR; | |
1637 | if (!S_ISREG(st.st_mode)) | |
1638 | return -ENOTTY; | |
1639 | ||
32c0ed7b | 1640 | q = in_search_path(&paths, *i); |
0ec0deaa LP |
1641 | if (q < 0) |
1642 | return q; | |
1643 | if (q > 0) | |
1644 | continue; | |
1645 | ||
1646 | if (!GREEDY_REALLOC0(todo, n_allocated, n_todo + 2)) | |
1647 | return -ENOMEM; | |
1648 | ||
1649 | todo[n_todo++] = *i; | |
e94937df LN |
1650 | } |
1651 | ||
0ec0deaa | 1652 | strv_uniq(todo); |
e94937df | 1653 | |
0ec0deaa LP |
1654 | r = 0; |
1655 | STRV_FOREACH(i, todo) { | |
401017e0 LP |
1656 | _cleanup_free_ char *new_path = NULL; |
1657 | const char *old_path; | |
0ec0deaa | 1658 | |
401017e0 LP |
1659 | old_path = skip_root(&paths, *i); |
1660 | new_path = path_make_absolute(basename(*i), config_path); | |
1661 | if (!new_path) | |
0ec0deaa LP |
1662 | return -ENOMEM; |
1663 | ||
401017e0 | 1664 | q = create_symlink(old_path ?: *i, new_path, force, changes, n_changes); |
0ec0deaa LP |
1665 | if (q < 0 && r >= 0) |
1666 | r = q; | |
2d5c93c7 MS |
1667 | } |
1668 | ||
0ec0deaa LP |
1669 | return r; |
1670 | } | |
1671 | ||
1672 | int unit_file_add_dependency( | |
1673 | UnitFileScope scope, | |
1674 | bool runtime, | |
1675 | const char *root_dir, | |
1676 | char **files, | |
1677 | const char *target, | |
1678 | UnitDependency dep, | |
1679 | bool force, | |
1680 | UnitFileChange **changes, | |
1681 | unsigned *n_changes) { | |
1682 | ||
1683 | _cleanup_lookup_paths_free_ LookupPaths paths = {}; | |
1684 | _cleanup_(install_context_done) InstallContext c = {}; | |
0ec0deaa | 1685 | UnitFileInstallInfo *i, *target_info; |
e1c5c2b0 | 1686 | const char *config_path; |
0ec0deaa LP |
1687 | char **f; |
1688 | int r; | |
1689 | ||
1690 | assert(scope >= 0); | |
1691 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
1692 | assert(target); | |
1693 | ||
1694 | if (!IN_SET(dep, UNIT_WANTS, UNIT_REQUIRES)) | |
1695 | return -EINVAL; | |
1696 | ||
1697 | if (!unit_name_is_valid(target, UNIT_NAME_ANY)) | |
1698 | return -EINVAL; | |
1699 | ||
463d0d15 | 1700 | r = lookup_paths_init(&paths, scope, root_dir); |
0ec0deaa LP |
1701 | if (r < 0) |
1702 | return r; | |
1703 | ||
e1c5c2b0 | 1704 | config_path = runtime ? paths.runtime_config : paths.persistent_config; |
0ec0deaa | 1705 | |
e4bb56c7 | 1706 | r = install_info_discover(scope, &c, &paths, target, SEARCH_FOLLOW_CONFIG_SYMLINKS, &target_info); |
0ec0deaa LP |
1707 | if (r < 0) |
1708 | return r; | |
1709 | if (target_info->type == UNIT_FILE_TYPE_MASKED) | |
1710 | return -ESHUTDOWN; | |
f4dc1e65 | 1711 | if (path_is_generator(&paths, target_info->path)) |
7bfe3d44 | 1712 | return -EADDRNOTAVAIL; |
0ec0deaa LP |
1713 | |
1714 | assert(target_info->type == UNIT_FILE_TYPE_REGULAR); | |
e94937df | 1715 | |
0ec0deaa LP |
1716 | STRV_FOREACH(f, files) { |
1717 | char ***l; | |
1718 | ||
e4bb56c7 | 1719 | r = install_info_discover(scope, &c, &paths, *f, SEARCH_FOLLOW_CONFIG_SYMLINKS, &i); |
e94937df LN |
1720 | if (r < 0) |
1721 | return r; | |
0ec0deaa LP |
1722 | if (i->type == UNIT_FILE_TYPE_MASKED) |
1723 | return -ESHUTDOWN; | |
f4dc1e65 | 1724 | if (path_is_generator(&paths, i->path)) |
7bfe3d44 | 1725 | return -EADDRNOTAVAIL; |
0ec0deaa LP |
1726 | |
1727 | assert(i->type == UNIT_FILE_TYPE_REGULAR); | |
1728 | ||
1729 | /* We didn't actually load anything from the unit | |
1730 | * file, but instead just add in our new symlink to | |
1731 | * create. */ | |
e94937df LN |
1732 | |
1733 | if (dep == UNIT_WANTS) | |
0ec0deaa | 1734 | l = &i->wanted_by; |
e94937df | 1735 | else |
0ec0deaa | 1736 | l = &i->required_by; |
e94937df | 1737 | |
0ec0deaa LP |
1738 | strv_free(*l); |
1739 | *l = strv_new(target_info->name, NULL); | |
1740 | if (!*l) | |
1741 | return -ENOMEM; | |
e94937df LN |
1742 | } |
1743 | ||
e4bb56c7 | 1744 | return install_context_apply(scope, &c, &paths, config_path, force, SEARCH_FOLLOW_CONFIG_SYMLINKS, changes, n_changes); |
e94937df LN |
1745 | } |
1746 | ||
83096483 LP |
1747 | int unit_file_enable( |
1748 | UnitFileScope scope, | |
1749 | bool runtime, | |
1750 | const char *root_dir, | |
7195aa42 | 1751 | char **files, |
83096483 LP |
1752 | bool force, |
1753 | UnitFileChange **changes, | |
1754 | unsigned *n_changes) { | |
1755 | ||
7fd1b19b | 1756 | _cleanup_lookup_paths_free_ LookupPaths paths = {}; |
59ccf93d | 1757 | _cleanup_(install_context_done) InstallContext c = {}; |
e1c5c2b0 | 1758 | const char *config_path; |
0ec0deaa LP |
1759 | UnitFileInstallInfo *i; |
1760 | char **f; | |
83096483 LP |
1761 | int r; |
1762 | ||
1763 | assert(scope >= 0); | |
1764 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
1765 | ||
463d0d15 | 1766 | r = lookup_paths_init(&paths, scope, root_dir); |
83096483 LP |
1767 | if (r < 0) |
1768 | return r; | |
1769 | ||
e1c5c2b0 | 1770 | config_path = runtime ? paths.runtime_config : paths.persistent_config; |
83096483 | 1771 | |
0ec0deaa | 1772 | STRV_FOREACH(f, files) { |
e4bb56c7 | 1773 | r = install_info_discover(scope, &c, &paths, *f, SEARCH_LOAD, &i); |
83096483 | 1774 | if (r < 0) |
d9e5e694 | 1775 | return r; |
0ec0deaa LP |
1776 | if (i->type == UNIT_FILE_TYPE_MASKED) |
1777 | return -ESHUTDOWN; | |
f4dc1e65 | 1778 | if (path_is_generator(&paths, i->path)) |
7bfe3d44 | 1779 | return -EADDRNOTAVAIL; |
0ec0deaa LP |
1780 | |
1781 | assert(i->type == UNIT_FILE_TYPE_REGULAR); | |
83096483 LP |
1782 | } |
1783 | ||
729e3769 | 1784 | /* This will return the number of symlink rules that were |
d25e100b LP |
1785 | supposed to be created, not the ones actually created. This |
1786 | is useful to determine whether the passed files had any | |
1787 | installation data at all. */ | |
b91a3b02 | 1788 | |
e4bb56c7 | 1789 | return install_context_apply(scope, &c, &paths, config_path, force, SEARCH_LOAD, changes, n_changes); |
83096483 LP |
1790 | } |
1791 | ||
1792 | int unit_file_disable( | |
1793 | UnitFileScope scope, | |
1794 | bool runtime, | |
1795 | const char *root_dir, | |
7195aa42 | 1796 | char **files, |
83096483 LP |
1797 | UnitFileChange **changes, |
1798 | unsigned *n_changes) { | |
1799 | ||
7fd1b19b | 1800 | _cleanup_lookup_paths_free_ LookupPaths paths = {}; |
59ccf93d | 1801 | _cleanup_(install_context_done) InstallContext c = {}; |
7fd1b19b | 1802 | _cleanup_set_free_free_ Set *remove_symlinks_to = NULL; |
e1c5c2b0 | 1803 | const char *config_path; |
0ec0deaa LP |
1804 | char **i; |
1805 | int r; | |
83096483 LP |
1806 | |
1807 | assert(scope >= 0); | |
1808 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
1809 | ||
463d0d15 | 1810 | r = lookup_paths_init(&paths, scope, root_dir); |
83096483 LP |
1811 | if (r < 0) |
1812 | return r; | |
1813 | ||
e1c5c2b0 | 1814 | config_path = runtime ? paths.runtime_config : paths.persistent_config; |
83096483 LP |
1815 | |
1816 | STRV_FOREACH(i, files) { | |
0ec0deaa LP |
1817 | if (!unit_name_is_valid(*i, UNIT_NAME_ANY)) |
1818 | return -EINVAL; | |
1819 | ||
1820 | r = install_info_add(&c, *i, NULL, NULL); | |
83096483 | 1821 | if (r < 0) |
d9e5e694 | 1822 | return r; |
83096483 LP |
1823 | } |
1824 | ||
e4bb56c7 | 1825 | r = install_context_mark_for_removal(scope, &c, &paths, &remove_symlinks_to, config_path); |
0ec0deaa LP |
1826 | if (r < 0) |
1827 | return r; | |
83096483 | 1828 | |
401017e0 | 1829 | return remove_marked_symlinks(remove_symlinks_to, config_path, &paths, changes, n_changes); |
83096483 LP |
1830 | } |
1831 | ||
1832 | int unit_file_reenable( | |
1833 | UnitFileScope scope, | |
1834 | bool runtime, | |
1835 | const char *root_dir, | |
7195aa42 | 1836 | char **files, |
83096483 LP |
1837 | bool force, |
1838 | UnitFileChange **changes, | |
1839 | unsigned *n_changes) { | |
0ec0deaa LP |
1840 | |
1841 | char **n; | |
92d430a9 | 1842 | int r; |
0ec0deaa | 1843 | size_t l, i; |
83096483 | 1844 | |
0ec0deaa LP |
1845 | /* First, we invoke the disable command with only the basename... */ |
1846 | l = strv_length(files); | |
1847 | n = newa(char*, l+1); | |
1848 | for (i = 0; i < l; i++) | |
1849 | n[i] = basename(files[i]); | |
1850 | n[i] = NULL; | |
1851 | ||
1852 | r = unit_file_disable(scope, runtime, root_dir, n, changes, n_changes); | |
83096483 | 1853 | if (r < 0) |
d9e5e694 | 1854 | return r; |
83096483 | 1855 | |
0ec0deaa | 1856 | /* But the enable command with the full name */ |
d25e100b | 1857 | return unit_file_enable(scope, runtime, root_dir, files, force, changes, n_changes); |
83096483 LP |
1858 | } |
1859 | ||
99504dd4 VP |
1860 | int unit_file_set_default( |
1861 | UnitFileScope scope, | |
1862 | const char *root_dir, | |
0ec0deaa | 1863 | const char *name, |
718db961 | 1864 | bool force, |
99504dd4 VP |
1865 | UnitFileChange **changes, |
1866 | unsigned *n_changes) { | |
1867 | ||
1868 | _cleanup_lookup_paths_free_ LookupPaths paths = {}; | |
59ccf93d | 1869 | _cleanup_(install_context_done) InstallContext c = {}; |
0ec0deaa | 1870 | UnitFileInstallInfo *i; |
401017e0 | 1871 | const char *new_path, *old_path; |
99504dd4 | 1872 | int r; |
99504dd4 VP |
1873 | |
1874 | assert(scope >= 0); | |
1875 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
0ec0deaa | 1876 | assert(name); |
99504dd4 | 1877 | |
401017e0 | 1878 | if (unit_name_to_type(name) != UNIT_TARGET) /* this also validates the name */ |
0ec0deaa LP |
1879 | return -EINVAL; |
1880 | if (streq(name, SPECIAL_DEFAULT_TARGET)) | |
99504dd4 VP |
1881 | return -EINVAL; |
1882 | ||
463d0d15 | 1883 | r = lookup_paths_init(&paths, scope, root_dir); |
99504dd4 VP |
1884 | if (r < 0) |
1885 | return r; | |
1886 | ||
e4bb56c7 | 1887 | r = install_info_discover(scope, &c, &paths, name, 0, &i); |
99504dd4 VP |
1888 | if (r < 0) |
1889 | return r; | |
0ec0deaa LP |
1890 | if (i->type == UNIT_FILE_TYPE_MASKED) |
1891 | return -ESHUTDOWN; | |
f4dc1e65 | 1892 | if (path_is_generator(&paths, i->path)) |
7bfe3d44 | 1893 | return -EADDRNOTAVAIL; |
99504dd4 | 1894 | |
401017e0 LP |
1895 | old_path = skip_root(&paths, i->path); |
1896 | new_path = strjoina(paths.persistent_config, "/" SPECIAL_DEFAULT_TARGET); | |
16ed0233 | 1897 | |
401017e0 | 1898 | return create_symlink(old_path ?: i->path, new_path, force, changes, n_changes); |
99504dd4 VP |
1899 | } |
1900 | ||
1901 | int unit_file_get_default( | |
1902 | UnitFileScope scope, | |
1903 | const char *root_dir, | |
1904 | char **name) { | |
1905 | ||
1906 | _cleanup_lookup_paths_free_ LookupPaths paths = {}; | |
0ec0deaa LP |
1907 | _cleanup_(install_context_done) InstallContext c = {}; |
1908 | UnitFileInstallInfo *i; | |
1909 | char *n; | |
99504dd4 VP |
1910 | int r; |
1911 | ||
16ed0233 LP |
1912 | assert(scope >= 0); |
1913 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
1914 | assert(name); | |
1915 | ||
463d0d15 | 1916 | r = lookup_paths_init(&paths, scope, root_dir); |
0ec0deaa LP |
1917 | if (r < 0) |
1918 | return r; | |
99504dd4 | 1919 | |
e4bb56c7 | 1920 | r = install_info_discover(scope, &c, &paths, SPECIAL_DEFAULT_TARGET, SEARCH_FOLLOW_CONFIG_SYMLINKS, &i); |
0ec0deaa LP |
1921 | if (r < 0) |
1922 | return r; | |
1923 | if (i->type == UNIT_FILE_TYPE_MASKED) | |
1924 | return -ESHUTDOWN; | |
99504dd4 | 1925 | |
0ec0deaa LP |
1926 | n = strdup(i->name); |
1927 | if (!n) | |
1928 | return -ENOMEM; | |
99504dd4 | 1929 | |
0ec0deaa LP |
1930 | *name = n; |
1931 | return 0; | |
99504dd4 VP |
1932 | } |
1933 | ||
0ec0deaa | 1934 | int unit_file_lookup_state( |
83096483 | 1935 | UnitFileScope scope, |
a8ffe6fb | 1936 | const LookupPaths *paths, |
0ec0deaa LP |
1937 | const char *name, |
1938 | UnitFileState *ret) { | |
83096483 | 1939 | |
0ec0deaa LP |
1940 | _cleanup_(install_context_done) InstallContext c = {}; |
1941 | UnitFileInstallInfo *i; | |
1942 | UnitFileState state; | |
1943 | int r; | |
83096483 | 1944 | |
a8ffe6fb | 1945 | assert(paths); |
0ec0deaa | 1946 | assert(name); |
83096483 | 1947 | |
7410616c | 1948 | if (!unit_name_is_valid(name, UNIT_NAME_ANY)) |
83096483 LP |
1949 | return -EINVAL; |
1950 | ||
e4bb56c7 | 1951 | r = install_info_discover(scope, &c, paths, name, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS, &i); |
0ec0deaa LP |
1952 | if (r < 0) |
1953 | return r; | |
83096483 | 1954 | |
0ec0deaa LP |
1955 | /* Shortcut things, if the caller just wants to know if this unit exists. */ |
1956 | if (!ret) | |
1957 | return 0; | |
83096483 | 1958 | |
0ec0deaa | 1959 | switch (i->type) { |
67820a0c | 1960 | |
0ec0deaa | 1961 | case UNIT_FILE_TYPE_MASKED: |
385eb996 LP |
1962 | r = path_is_runtime(paths, i->path); |
1963 | if (r < 0) | |
1964 | return r; | |
1965 | ||
1966 | state = r > 0 ? UNIT_FILE_MASKED_RUNTIME : UNIT_FILE_MASKED; | |
0ec0deaa | 1967 | break; |
83096483 | 1968 | |
0ec0deaa | 1969 | case UNIT_FILE_TYPE_REGULAR: |
f4dc1e65 | 1970 | r = path_is_generator(paths, i->path); |
f4139308 LP |
1971 | if (r < 0) |
1972 | return r; | |
1973 | if (r > 0) { | |
1974 | state = UNIT_FILE_GENERATED; | |
1975 | break; | |
1976 | } | |
1977 | ||
e4bb56c7 | 1978 | r = find_symlinks_in_scope(scope, paths, i->name, &state); |
d9e5e694 ZJS |
1979 | if (r < 0) |
1980 | return r; | |
0ec0deaa LP |
1981 | if (r == 0) { |
1982 | if (UNIT_FILE_INSTALL_INFO_HAS_RULES(i)) | |
1983 | state = UNIT_FILE_DISABLED; | |
1984 | else if (UNIT_FILE_INSTALL_INFO_HAS_ALSO(i)) | |
1985 | state = UNIT_FILE_INDIRECT; | |
1986 | else | |
1987 | state = UNIT_FILE_STATIC; | |
1988 | } | |
83096483 | 1989 | |
0ec0deaa LP |
1990 | break; |
1991 | ||
1992 | default: | |
1993 | assert_not_reached("Unexpect unit file type."); | |
83096483 LP |
1994 | } |
1995 | ||
0ec0deaa LP |
1996 | *ret = state; |
1997 | return 0; | |
83096483 LP |
1998 | } |
1999 | ||
0ec0deaa | 2000 | int unit_file_get_state( |
a8ffe6fb ZJS |
2001 | UnitFileScope scope, |
2002 | const char *root_dir, | |
0ec0deaa LP |
2003 | const char *name, |
2004 | UnitFileState *ret) { | |
a8ffe6fb ZJS |
2005 | |
2006 | _cleanup_lookup_paths_free_ LookupPaths paths = {}; | |
2007 | int r; | |
2008 | ||
2009 | assert(scope >= 0); | |
2010 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
2011 | assert(name); | |
2012 | ||
463d0d15 | 2013 | r = lookup_paths_init(&paths, scope, root_dir); |
a8ffe6fb ZJS |
2014 | if (r < 0) |
2015 | return r; | |
2016 | ||
e4bb56c7 | 2017 | return unit_file_lookup_state(scope, &paths, name, ret); |
a8ffe6fb ZJS |
2018 | } |
2019 | ||
c2a8d7b0 | 2020 | int unit_file_query_preset(UnitFileScope scope, const char *root_dir, const char *name) { |
7fd1b19b | 2021 | _cleanup_strv_free_ char **files = NULL; |
cba2ef02 | 2022 | char **p; |
83096483 LP |
2023 | int r; |
2024 | ||
2025 | assert(scope >= 0); | |
2026 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
2027 | assert(name); | |
2028 | ||
0ec0deaa LP |
2029 | if (!unit_name_is_valid(name, UNIT_NAME_ANY)) |
2030 | return -EINVAL; | |
2031 | ||
83096483 | 2032 | if (scope == UNIT_FILE_SYSTEM) |
c2a8d7b0 | 2033 | r = conf_files_list(&files, ".preset", root_dir, |
a7480dba LP |
2034 | "/etc/systemd/system-preset", |
2035 | "/usr/local/lib/systemd/system-preset", | |
2036 | "/usr/lib/systemd/system-preset", | |
b4bdfefa | 2037 | #ifdef HAVE_SPLIT_USR |
a7480dba | 2038 | "/lib/systemd/system-preset", |
b4bdfefa | 2039 | #endif |
83096483 LP |
2040 | NULL); |
2041 | else if (scope == UNIT_FILE_GLOBAL) | |
c2a8d7b0 | 2042 | r = conf_files_list(&files, ".preset", root_dir, |
a7480dba LP |
2043 | "/etc/systemd/user-preset", |
2044 | "/usr/local/lib/systemd/user-preset", | |
2045 | "/usr/lib/systemd/user-preset", | |
83096483 LP |
2046 | NULL); |
2047 | else | |
0ec0deaa | 2048 | return 1; /* Default is "enable" */ |
83096483 LP |
2049 | |
2050 | if (r < 0) | |
2051 | return r; | |
2052 | ||
cba2ef02 | 2053 | STRV_FOREACH(p, files) { |
7fd1b19b | 2054 | _cleanup_fclose_ FILE *f; |
0ec0deaa | 2055 | char line[LINE_MAX]; |
83096483 | 2056 | |
cba2ef02 | 2057 | f = fopen(*p, "re"); |
83096483 LP |
2058 | if (!f) { |
2059 | if (errno == ENOENT) | |
2060 | continue; | |
2061 | ||
d9e5e694 | 2062 | return -errno; |
83096483 LP |
2063 | } |
2064 | ||
0ec0deaa LP |
2065 | FOREACH_LINE(line, f, return -errno) { |
2066 | const char *parameter; | |
2067 | char *l; | |
83096483 LP |
2068 | |
2069 | l = strstrip(line); | |
83096483 | 2070 | |
0ec0deaa LP |
2071 | if (isempty(l)) |
2072 | continue; | |
2073 | if (strchr(COMMENTS, *l)) | |
83096483 LP |
2074 | continue; |
2075 | ||
0ec0deaa LP |
2076 | parameter = first_word(l, "enable"); |
2077 | if (parameter) { | |
2078 | if (fnmatch(parameter, name, FNM_NOESCAPE) == 0) { | |
c2a8d7b0 | 2079 | log_debug("Preset file says enable %s.", name); |
d9e5e694 | 2080 | return 1; |
c2a8d7b0 | 2081 | } |
d9e5e694 | 2082 | |
0ec0deaa LP |
2083 | continue; |
2084 | } | |
83096483 | 2085 | |
0ec0deaa LP |
2086 | parameter = first_word(l, "disable"); |
2087 | if (parameter) { | |
2088 | if (fnmatch(parameter, name, FNM_NOESCAPE) == 0) { | |
c2a8d7b0 | 2089 | log_debug("Preset file says disable %s.", name); |
d9e5e694 | 2090 | return 0; |
c2a8d7b0 | 2091 | } |
d9e5e694 | 2092 | |
0ec0deaa LP |
2093 | continue; |
2094 | } | |
2095 | ||
2096 | log_debug("Couldn't parse line '%s'", l); | |
83096483 | 2097 | } |
83096483 LP |
2098 | } |
2099 | ||
2100 | /* Default is "enable" */ | |
c2a8d7b0 | 2101 | log_debug("Preset file doesn't say anything about %s, enabling.", name); |
d9e5e694 | 2102 | return 1; |
83096483 LP |
2103 | } |
2104 | ||
0ec0deaa LP |
2105 | static int execute_preset( |
2106 | UnitFileScope scope, | |
2107 | InstallContext *plus, | |
2108 | InstallContext *minus, | |
2109 | const LookupPaths *paths, | |
2110 | const char *config_path, | |
0ec0deaa LP |
2111 | char **files, |
2112 | UnitFilePresetMode mode, | |
2113 | bool force, | |
2114 | UnitFileChange **changes, | |
2115 | unsigned *n_changes) { | |
2116 | ||
2117 | int r; | |
2118 | ||
2119 | assert(plus); | |
2120 | assert(minus); | |
2121 | assert(paths); | |
2122 | assert(config_path); | |
2123 | ||
2124 | if (mode != UNIT_FILE_PRESET_ENABLE_ONLY) { | |
2125 | _cleanup_set_free_free_ Set *remove_symlinks_to = NULL; | |
2126 | ||
e4bb56c7 | 2127 | r = install_context_mark_for_removal(scope, minus, paths, &remove_symlinks_to, config_path); |
0ec0deaa LP |
2128 | if (r < 0) |
2129 | return r; | |
2130 | ||
401017e0 | 2131 | r = remove_marked_symlinks(remove_symlinks_to, config_path, paths, changes, n_changes); |
0ec0deaa LP |
2132 | } else |
2133 | r = 0; | |
2134 | ||
2135 | if (mode != UNIT_FILE_PRESET_DISABLE_ONLY) { | |
2136 | int q; | |
2137 | ||
2138 | /* Returns number of symlinks that where supposed to be installed. */ | |
e4bb56c7 | 2139 | q = install_context_apply(scope, plus, paths, config_path, force, SEARCH_LOAD, changes, n_changes); |
0ec0deaa LP |
2140 | if (r >= 0) { |
2141 | if (q < 0) | |
2142 | r = q; | |
2143 | else | |
2144 | r+= q; | |
2145 | } | |
2146 | } | |
2147 | ||
2148 | return r; | |
2149 | } | |
2150 | ||
2151 | static int preset_prepare_one( | |
2152 | UnitFileScope scope, | |
2153 | InstallContext *plus, | |
2154 | InstallContext *minus, | |
2155 | LookupPaths *paths, | |
0ec0deaa LP |
2156 | UnitFilePresetMode mode, |
2157 | const char *name) { | |
2158 | ||
2159 | UnitFileInstallInfo *i; | |
2160 | int r; | |
2161 | ||
2162 | if (install_info_find(plus, name) || | |
2163 | install_info_find(minus, name)) | |
2164 | return 0; | |
2165 | ||
e4bb56c7 | 2166 | r = unit_file_query_preset(scope, paths->root_dir, name); |
0ec0deaa LP |
2167 | if (r < 0) |
2168 | return r; | |
2169 | ||
2170 | if (r > 0) { | |
e4bb56c7 | 2171 | r = install_info_discover(scope, plus, paths, name, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS, &i); |
0ec0deaa LP |
2172 | if (r < 0) |
2173 | return r; | |
2174 | ||
2175 | if (i->type == UNIT_FILE_TYPE_MASKED) | |
2176 | return -ESHUTDOWN; | |
f4dc1e65 | 2177 | if (path_is_generator(paths, i->path)) |
7bfe3d44 | 2178 | return -EADDRNOTAVAIL; |
0ec0deaa | 2179 | } else |
e4bb56c7 | 2180 | r = install_info_discover(scope, minus, paths, name, SEARCH_FOLLOW_CONFIG_SYMLINKS, &i); |
0ec0deaa LP |
2181 | |
2182 | return r; | |
2183 | } | |
2184 | ||
83096483 LP |
2185 | int unit_file_preset( |
2186 | UnitFileScope scope, | |
2187 | bool runtime, | |
2188 | const char *root_dir, | |
7195aa42 | 2189 | char **files, |
d309c1c3 | 2190 | UnitFilePresetMode mode, |
83096483 LP |
2191 | bool force, |
2192 | UnitFileChange **changes, | |
2193 | unsigned *n_changes) { | |
2194 | ||
59ccf93d | 2195 | _cleanup_(install_context_done) InstallContext plus = {}, minus = {}; |
da39f6a6 | 2196 | _cleanup_lookup_paths_free_ LookupPaths paths = {}; |
e1c5c2b0 | 2197 | const char *config_path; |
da39f6a6 | 2198 | char **i; |
0ec0deaa | 2199 | int r; |
83096483 LP |
2200 | |
2201 | assert(scope >= 0); | |
2202 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
86bbe5bf | 2203 | assert(mode < _UNIT_FILE_PRESET_MAX); |
83096483 | 2204 | |
463d0d15 | 2205 | r = lookup_paths_init(&paths, scope, root_dir); |
83096483 LP |
2206 | if (r < 0) |
2207 | return r; | |
2208 | ||
e1c5c2b0 | 2209 | config_path = runtime ? paths.runtime_config : paths.persistent_config; |
83096483 LP |
2210 | |
2211 | STRV_FOREACH(i, files) { | |
7410616c | 2212 | if (!unit_name_is_valid(*i, UNIT_NAME_ANY)) |
d9e5e694 | 2213 | return -EINVAL; |
83096483 | 2214 | |
e4bb56c7 | 2215 | r = preset_prepare_one(scope, &plus, &minus, &paths, mode, *i); |
83096483 | 2216 | if (r < 0) |
d9e5e694 | 2217 | return r; |
83096483 LP |
2218 | } |
2219 | ||
e4bb56c7 | 2220 | return execute_preset(scope, &plus, &minus, &paths, config_path, files, mode, force, changes, n_changes); |
d309c1c3 LP |
2221 | } |
2222 | ||
2223 | int unit_file_preset_all( | |
2224 | UnitFileScope scope, | |
2225 | bool runtime, | |
2226 | const char *root_dir, | |
2227 | UnitFilePresetMode mode, | |
2228 | bool force, | |
2229 | UnitFileChange **changes, | |
2230 | unsigned *n_changes) { | |
2231 | ||
59ccf93d | 2232 | _cleanup_(install_context_done) InstallContext plus = {}, minus = {}; |
d309c1c3 | 2233 | _cleanup_lookup_paths_free_ LookupPaths paths = {}; |
e1c5c2b0 | 2234 | const char *config_path = NULL; |
d309c1c3 | 2235 | char **i; |
0ec0deaa | 2236 | int r; |
d309c1c3 LP |
2237 | |
2238 | assert(scope >= 0); | |
2239 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
86bbe5bf | 2240 | assert(mode < _UNIT_FILE_PRESET_MAX); |
d309c1c3 | 2241 | |
463d0d15 | 2242 | r = lookup_paths_init(&paths, scope, root_dir); |
d309c1c3 LP |
2243 | if (r < 0) |
2244 | return r; | |
2245 | ||
e1c5c2b0 | 2246 | config_path = runtime ? paths.runtime_config : paths.persistent_config; |
d309c1c3 | 2247 | |
a3c4eb07 | 2248 | STRV_FOREACH(i, paths.search_path) { |
d309c1c3 | 2249 | _cleanup_closedir_ DIR *d = NULL; |
d25e100b | 2250 | struct dirent *de; |
d309c1c3 | 2251 | |
401017e0 | 2252 | d = opendir(*i); |
d309c1c3 LP |
2253 | if (!d) { |
2254 | if (errno == ENOENT) | |
2255 | continue; | |
2256 | ||
2257 | return -errno; | |
2258 | } | |
2259 | ||
d25e100b | 2260 | FOREACH_DIRENT(de, d, return -errno) { |
d309c1c3 | 2261 | |
7410616c | 2262 | if (!unit_name_is_valid(de->d_name, UNIT_NAME_ANY)) |
d309c1c3 LP |
2263 | continue; |
2264 | ||
2265 | dirent_ensure_type(d, de); | |
2266 | ||
0ec0deaa | 2267 | if (!IN_SET(de->d_type, DT_LNK, DT_REG)) |
d309c1c3 LP |
2268 | continue; |
2269 | ||
e4bb56c7 | 2270 | r = preset_prepare_one(scope, &plus, &minus, &paths, mode, de->d_name); |
d309c1c3 LP |
2271 | if (r < 0) |
2272 | return r; | |
2273 | } | |
2274 | } | |
2275 | ||
e4bb56c7 | 2276 | return execute_preset(scope, &plus, &minus, &paths, config_path, NULL, mode, force, changes, n_changes); |
83096483 LP |
2277 | } |
2278 | ||
59ccf93d LP |
2279 | static void unit_file_list_free_one(UnitFileList *f) { |
2280 | if (!f) | |
d9e5e694 ZJS |
2281 | return; |
2282 | ||
59ccf93d LP |
2283 | free(f->path); |
2284 | free(f); | |
d9e5e694 | 2285 | } |
59ccf93d | 2286 | |
0ec0deaa LP |
2287 | Hashmap* unit_file_list_free(Hashmap *h) { |
2288 | UnitFileList *i; | |
2289 | ||
2290 | while ((i = hashmap_steal_first(h))) | |
2291 | unit_file_list_free_one(i); | |
2292 | ||
2293 | return hashmap_free(h); | |
2294 | } | |
2295 | ||
59ccf93d | 2296 | DEFINE_TRIVIAL_CLEANUP_FUNC(UnitFileList*, unit_file_list_free_one); |
d9e5e694 | 2297 | |
83096483 LP |
2298 | int unit_file_get_list( |
2299 | UnitFileScope scope, | |
2300 | const char *root_dir, | |
2301 | Hashmap *h) { | |
2302 | ||
7fd1b19b | 2303 | _cleanup_lookup_paths_free_ LookupPaths paths = {}; |
d9e5e694 | 2304 | char **i; |
83096483 LP |
2305 | int r; |
2306 | ||
2307 | assert(scope >= 0); | |
2308 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
2309 | assert(h); | |
2310 | ||
463d0d15 | 2311 | r = lookup_paths_init(&paths, scope, root_dir); |
83096483 LP |
2312 | if (r < 0) |
2313 | return r; | |
2314 | ||
a3c4eb07 | 2315 | STRV_FOREACH(i, paths.search_path) { |
da39f6a6 | 2316 | _cleanup_closedir_ DIR *d = NULL; |
d25e100b | 2317 | struct dirent *de; |
83096483 | 2318 | |
401017e0 | 2319 | d = opendir(*i); |
83096483 LP |
2320 | if (!d) { |
2321 | if (errno == ENOENT) | |
2322 | continue; | |
2323 | ||
d9e5e694 | 2324 | return -errno; |
83096483 LP |
2325 | } |
2326 | ||
d25e100b | 2327 | FOREACH_DIRENT(de, d, return -errno) { |
59ccf93d | 2328 | _cleanup_(unit_file_list_free_onep) UnitFileList *f = NULL; |
83096483 | 2329 | |
7410616c | 2330 | if (!unit_name_is_valid(de->d_name, UNIT_NAME_ANY)) |
83096483 LP |
2331 | continue; |
2332 | ||
2333 | if (hashmap_get(h, de->d_name)) | |
2334 | continue; | |
2335 | ||
da39f6a6 | 2336 | dirent_ensure_type(d, de); |
83096483 | 2337 | |
da39f6a6 | 2338 | if (!IN_SET(de->d_type, DT_LNK, DT_REG)) |
83096483 LP |
2339 | continue; |
2340 | ||
2341 | f = new0(UnitFileList, 1); | |
d9e5e694 ZJS |
2342 | if (!f) |
2343 | return -ENOMEM; | |
83096483 | 2344 | |
401017e0 | 2345 | f->path = path_make_absolute(de->d_name, *i); |
d9e5e694 ZJS |
2346 | if (!f->path) |
2347 | return -ENOMEM; | |
83096483 | 2348 | |
401017e0 | 2349 | r = unit_file_lookup_state(scope, &paths, de->d_name, &f->state); |
d9e5e694 | 2350 | if (r < 0) |
0ec0deaa | 2351 | f->state = UNIT_FILE_BAD; |
81fc054d | 2352 | |
2b6bf07d | 2353 | r = hashmap_put(h, basename(f->path), f); |
d9e5e694 ZJS |
2354 | if (r < 0) |
2355 | return r; | |
0ec0deaa | 2356 | |
d9e5e694 | 2357 | f = NULL; /* prevent cleanup */ |
83096483 LP |
2358 | } |
2359 | } | |
2360 | ||
77cd2c87 | 2361 | return 0; |
83096483 LP |
2362 | } |
2363 | ||
2364 | static const char* const unit_file_state_table[_UNIT_FILE_STATE_MAX] = { | |
2365 | [UNIT_FILE_ENABLED] = "enabled", | |
771faa9a | 2366 | [UNIT_FILE_ENABLED_RUNTIME] = "enabled-runtime", |
83096483 LP |
2367 | [UNIT_FILE_LINKED] = "linked", |
2368 | [UNIT_FILE_LINKED_RUNTIME] = "linked-runtime", | |
2369 | [UNIT_FILE_MASKED] = "masked", | |
2370 | [UNIT_FILE_MASKED_RUNTIME] = "masked-runtime", | |
2371 | [UNIT_FILE_STATIC] = "static", | |
b5b46d59 | 2372 | [UNIT_FILE_DISABLED] = "disabled", |
aedd4012 | 2373 | [UNIT_FILE_INDIRECT] = "indirect", |
f4139308 | 2374 | [UNIT_FILE_GENERATED] = "generated", |
0ec0deaa | 2375 | [UNIT_FILE_BAD] = "bad", |
83096483 LP |
2376 | }; |
2377 | ||
2378 | DEFINE_STRING_TABLE_LOOKUP(unit_file_state, UnitFileState); | |
c0576cd6 LP |
2379 | |
2380 | static const char* const unit_file_change_type_table[_UNIT_FILE_CHANGE_TYPE_MAX] = { | |
2381 | [UNIT_FILE_SYMLINK] = "symlink", | |
2382 | [UNIT_FILE_UNLINK] = "unlink", | |
2383 | }; | |
2384 | ||
2385 | DEFINE_STRING_TABLE_LOOKUP(unit_file_change_type, UnitFileChangeType); | |
d309c1c3 | 2386 | |
86bbe5bf | 2387 | static const char* const unit_file_preset_mode_table[_UNIT_FILE_PRESET_MAX] = { |
d309c1c3 LP |
2388 | [UNIT_FILE_PRESET_FULL] = "full", |
2389 | [UNIT_FILE_PRESET_ENABLE_ONLY] = "enable-only", | |
2390 | [UNIT_FILE_PRESET_DISABLE_ONLY] = "disable-only", | |
2391 | }; | |
2392 | ||
2393 | DEFINE_STRING_TABLE_LOOKUP(unit_file_preset_mode, UnitFilePresetMode); |