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83096483 LP |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2011 Lennart Poettering | |
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 | |
83096483 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. |
83096483 | 17 | |
5430f7f2 | 18 | You should have received a copy of the GNU Lesser General Public License |
83096483 LP |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
20 | ***/ | |
21 | ||
22 | #include <errno.h> | |
23 | #include <fcntl.h> | |
24 | #include <unistd.h> | |
25 | #include <string.h> | |
26 | #include <fnmatch.h> | |
27 | ||
28 | #include "util.h" | |
49e942b2 | 29 | #include "mkdir.h" |
83096483 LP |
30 | #include "hashmap.h" |
31 | #include "set.h" | |
9eb977db | 32 | #include "path-util.h" |
83096483 LP |
33 | #include "path-lookup.h" |
34 | #include "strv.h" | |
35 | #include "unit-name.h" | |
36 | #include "install.h" | |
37 | #include "conf-parser.h" | |
2c21044f | 38 | #include "conf-files.h" |
7584d236 ZJS |
39 | #include "specifier.h" |
40 | #include "install-printf.h" | |
83096483 LP |
41 | |
42 | typedef struct { | |
43 | Hashmap *will_install; | |
44 | Hashmap *have_installed; | |
45 | } InstallContext; | |
46 | ||
d9e5e694 ZJS |
47 | #define _cleanup_lookup_paths_free_ \ |
48 | __attribute__((cleanup(lookup_paths_free))) | |
49 | #define _cleanup_install_context_done_ \ | |
50 | __attribute__((cleanup(install_context_done))) | |
51 | ||
83096483 LP |
52 | static int lookup_paths_init_from_scope(LookupPaths *paths, UnitFileScope scope) { |
53 | assert(paths); | |
54 | assert(scope >= 0); | |
55 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
56 | ||
57 | zero(*paths); | |
58 | ||
59 | return lookup_paths_init(paths, | |
67445f4e | 60 | scope == UNIT_FILE_SYSTEM ? SYSTEMD_SYSTEM : SYSTEMD_USER, |
07719a21 LP |
61 | scope == UNIT_FILE_USER, |
62 | NULL, NULL, NULL); | |
83096483 LP |
63 | } |
64 | ||
65 | static int get_config_path(UnitFileScope scope, bool runtime, const char *root_dir, char **ret) { | |
66 | char *p = NULL; | |
67 | int r; | |
68 | ||
69 | assert(scope >= 0); | |
70 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
71 | assert(ret); | |
72 | ||
73 | switch (scope) { | |
74 | ||
75 | case UNIT_FILE_SYSTEM: | |
76 | ||
77 | if (root_dir && runtime) | |
d380a3bc BN |
78 | asprintf(&p, "%s/run/systemd/system", root_dir); |
79 | else if (runtime) | |
83096483 LP |
80 | p = strdup("/run/systemd/system"); |
81 | else if (root_dir) | |
82 | asprintf(&p, "%s/%s", root_dir, SYSTEM_CONFIG_UNIT_PATH); | |
83 | else | |
84 | p = strdup(SYSTEM_CONFIG_UNIT_PATH); | |
85 | ||
86 | break; | |
87 | ||
88 | case UNIT_FILE_GLOBAL: | |
89 | ||
90 | if (root_dir) | |
91 | return -EINVAL; | |
92 | ||
93 | if (runtime) | |
94 | p = strdup("/run/systemd/user"); | |
95 | else | |
96 | p = strdup(USER_CONFIG_UNIT_PATH); | |
97 | break; | |
98 | ||
99 | case UNIT_FILE_USER: | |
100 | ||
101 | if (root_dir || runtime) | |
102 | return -EINVAL; | |
103 | ||
104 | r = user_config_home(&p); | |
105 | if (r <= 0) | |
106 | return r < 0 ? r : -ENOENT; | |
107 | ||
108 | break; | |
109 | ||
110 | default: | |
111 | assert_not_reached("Bad scope"); | |
112 | } | |
113 | ||
114 | if (!p) | |
115 | return -ENOMEM; | |
116 | ||
117 | *ret = p; | |
118 | return 0; | |
119 | } | |
120 | ||
121 | static int add_file_change( | |
122 | UnitFileChange **changes, | |
123 | unsigned *n_changes, | |
124 | UnitFileChangeType type, | |
125 | const char *path, | |
126 | const char *source) { | |
127 | ||
128 | UnitFileChange *c; | |
129 | unsigned i; | |
130 | ||
83096483 LP |
131 | assert(path); |
132 | assert(!changes == !n_changes); | |
133 | ||
134 | if (!changes) | |
135 | return 0; | |
136 | ||
137 | c = realloc(*changes, (*n_changes + 1) * sizeof(UnitFileChange)); | |
138 | if (!c) | |
139 | return -ENOMEM; | |
140 | ||
141 | *changes = c; | |
142 | i = *n_changes; | |
143 | ||
144 | c[i].type = type; | |
145 | c[i].path = strdup(path); | |
146 | if (!c[i].path) | |
147 | return -ENOMEM; | |
148 | ||
149 | if (source) { | |
150 | c[i].source = strdup(source); | |
151 | if (!c[i].source) { | |
152 | free(c[i].path); | |
153 | return -ENOMEM; | |
154 | } | |
155 | } else | |
156 | c[i].source = NULL; | |
157 | ||
158 | *n_changes = i+1; | |
159 | return 0; | |
160 | } | |
161 | ||
162 | static int mark_symlink_for_removal( | |
163 | Set **remove_symlinks_to, | |
164 | const char *p) { | |
165 | ||
166 | char *n; | |
167 | int r; | |
168 | ||
169 | assert(p); | |
170 | ||
171 | r = set_ensure_allocated(remove_symlinks_to, string_hash_func, string_compare_func); | |
172 | if (r < 0) | |
173 | return r; | |
174 | ||
175 | n = strdup(p); | |
176 | if (!n) | |
177 | return -ENOMEM; | |
178 | ||
179 | path_kill_slashes(n); | |
180 | ||
ef42202a ZJS |
181 | r = set_consume(*remove_symlinks_to, n); |
182 | if (r < 0) | |
83096483 | 183 | return r == -EEXIST ? 0 : r; |
83096483 LP |
184 | |
185 | return 0; | |
186 | } | |
187 | ||
188 | static int remove_marked_symlinks_fd( | |
189 | Set *remove_symlinks_to, | |
190 | int fd, | |
191 | const char *path, | |
192 | const char *config_path, | |
193 | bool *deleted, | |
194 | UnitFileChange **changes, | |
29283ea4 MS |
195 | unsigned *n_changes, |
196 | char** files) { | |
83096483 LP |
197 | |
198 | int r = 0; | |
7fd1b19b | 199 | _cleanup_closedir_ DIR *d = NULL; |
83096483 LP |
200 | |
201 | assert(remove_symlinks_to); | |
202 | assert(fd >= 0); | |
203 | assert(path); | |
204 | assert(config_path); | |
205 | assert(deleted); | |
206 | ||
207 | d = fdopendir(fd); | |
208 | if (!d) { | |
209 | close_nointr_nofail(fd); | |
210 | return -errno; | |
211 | } | |
212 | ||
213 | rewinddir(d); | |
214 | ||
215 | for (;;) { | |
7d5e9c0f LP |
216 | struct dirent *de; |
217 | union dirent_storage buf; | |
83096483 LP |
218 | int k; |
219 | ||
7d5e9c0f | 220 | k = readdir_r(d, &buf.de, &de); |
83096483 LP |
221 | if (k != 0) { |
222 | r = -errno; | |
223 | break; | |
224 | } | |
225 | ||
226 | if (!de) | |
227 | break; | |
228 | ||
229 | if (ignore_file(de->d_name)) | |
230 | continue; | |
231 | ||
232 | dirent_ensure_type(d, de); | |
233 | ||
234 | if (de->d_type == DT_DIR) { | |
235 | int nfd, q; | |
7fd1b19b | 236 | _cleanup_free_ char *p = NULL; |
83096483 LP |
237 | |
238 | nfd = openat(fd, de->d_name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW); | |
239 | if (nfd < 0) { | |
240 | if (errno == ENOENT) | |
241 | continue; | |
242 | ||
243 | if (r == 0) | |
244 | r = -errno; | |
245 | continue; | |
246 | } | |
247 | ||
248 | p = path_make_absolute(de->d_name, path); | |
249 | if (!p) { | |
250 | close_nointr_nofail(nfd); | |
d9e5e694 | 251 | return -ENOMEM; |
83096483 LP |
252 | } |
253 | ||
254 | /* This will close nfd, regardless whether it succeeds or not */ | |
29283ea4 | 255 | q = remove_marked_symlinks_fd(remove_symlinks_to, nfd, p, config_path, deleted, changes, n_changes, files); |
83096483 LP |
256 | |
257 | if (r == 0) | |
258 | r = q; | |
259 | ||
260 | } else if (de->d_type == DT_LNK) { | |
7fd1b19b | 261 | _cleanup_free_ char *p = NULL, *dest = NULL; |
83096483 LP |
262 | int q; |
263 | bool found; | |
264 | ||
265 | p = path_make_absolute(de->d_name, path); | |
d9e5e694 ZJS |
266 | if (!p) |
267 | return -ENOMEM; | |
83096483 LP |
268 | |
269 | q = readlink_and_canonicalize(p, &dest); | |
270 | if (q < 0) { | |
83096483 LP |
271 | if (q == -ENOENT) |
272 | continue; | |
273 | ||
274 | if (r == 0) | |
275 | r = q; | |
276 | continue; | |
277 | } | |
278 | ||
279 | found = | |
280 | set_get(remove_symlinks_to, dest) || | |
9eb977db | 281 | set_get(remove_symlinks_to, path_get_file_name(dest)); |
83096483 | 282 | |
29283ea4 MS |
283 | if (unit_name_is_instance(p)) |
284 | found = found && strv_contains(files, path_get_file_name(p)); | |
285 | ||
83096483 LP |
286 | if (found) { |
287 | ||
288 | if (unlink(p) < 0 && errno != ENOENT) { | |
289 | ||
290 | if (r == 0) | |
291 | r = -errno; | |
292 | } else { | |
293 | rmdir_parents(p, config_path); | |
294 | path_kill_slashes(p); | |
295 | ||
296 | add_file_change(changes, n_changes, UNIT_FILE_UNLINK, p, NULL); | |
297 | ||
298 | if (!set_get(remove_symlinks_to, p)) { | |
299 | ||
300 | q = mark_symlink_for_removal(&remove_symlinks_to, p); | |
301 | if (q < 0) { | |
302 | if (r == 0) | |
303 | r = q; | |
304 | } else | |
305 | *deleted = true; | |
306 | } | |
307 | } | |
308 | } | |
83096483 LP |
309 | } |
310 | } | |
311 | ||
83096483 LP |
312 | return r; |
313 | } | |
314 | ||
315 | static int remove_marked_symlinks( | |
316 | Set *remove_symlinks_to, | |
317 | const char *config_path, | |
318 | UnitFileChange **changes, | |
29283ea4 MS |
319 | unsigned *n_changes, |
320 | char** files) { | |
83096483 LP |
321 | |
322 | int fd, r = 0; | |
323 | bool deleted; | |
324 | ||
325 | assert(config_path); | |
326 | ||
327 | if (set_size(remove_symlinks_to) <= 0) | |
328 | return 0; | |
329 | ||
330 | fd = open(config_path, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW); | |
331 | if (fd < 0) | |
332 | return -errno; | |
333 | ||
334 | do { | |
335 | int q, cfd; | |
336 | deleted = false; | |
337 | ||
338 | cfd = dup(fd); | |
339 | if (cfd < 0) { | |
340 | r = -errno; | |
341 | break; | |
342 | } | |
343 | ||
344 | /* This takes possession of cfd and closes it */ | |
29283ea4 | 345 | q = remove_marked_symlinks_fd(remove_symlinks_to, cfd, config_path, config_path, &deleted, changes, n_changes, files); |
83096483 LP |
346 | if (r == 0) |
347 | r = q; | |
348 | } while (deleted); | |
349 | ||
350 | close_nointr_nofail(fd); | |
351 | ||
352 | return r; | |
353 | } | |
354 | ||
355 | static int find_symlinks_fd( | |
356 | const char *name, | |
357 | int fd, | |
358 | const char *path, | |
359 | const char *config_path, | |
360 | bool *same_name_link) { | |
361 | ||
362 | int r = 0; | |
7fd1b19b | 363 | _cleanup_closedir_ DIR *d = NULL; |
83096483 LP |
364 | |
365 | assert(name); | |
366 | assert(fd >= 0); | |
367 | assert(path); | |
368 | assert(config_path); | |
369 | assert(same_name_link); | |
370 | ||
371 | d = fdopendir(fd); | |
372 | if (!d) { | |
373 | close_nointr_nofail(fd); | |
374 | return -errno; | |
375 | } | |
376 | ||
377 | for (;;) { | |
378 | int k; | |
7d5e9c0f LP |
379 | struct dirent *de; |
380 | union dirent_storage buf; | |
83096483 | 381 | |
7d5e9c0f | 382 | k = readdir_r(d, &buf.de, &de); |
ea55addc ZJS |
383 | if (k != 0) |
384 | return -errno; | |
83096483 LP |
385 | |
386 | if (!de) | |
ea55addc | 387 | return r; |
83096483 LP |
388 | |
389 | if (ignore_file(de->d_name)) | |
390 | continue; | |
391 | ||
392 | dirent_ensure_type(d, de); | |
393 | ||
394 | if (de->d_type == DT_DIR) { | |
395 | int nfd, q; | |
7fd1b19b | 396 | _cleanup_free_ char *p = NULL; |
83096483 LP |
397 | |
398 | nfd = openat(fd, de->d_name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW); | |
399 | if (nfd < 0) { | |
400 | if (errno == ENOENT) | |
401 | continue; | |
402 | ||
403 | if (r == 0) | |
404 | r = -errno; | |
405 | continue; | |
406 | } | |
407 | ||
408 | p = path_make_absolute(de->d_name, path); | |
409 | if (!p) { | |
410 | close_nointr_nofail(nfd); | |
ea55addc | 411 | return -ENOMEM; |
83096483 LP |
412 | } |
413 | ||
414 | /* This will close nfd, regardless whether it succeeds or not */ | |
415 | q = find_symlinks_fd(name, nfd, p, config_path, same_name_link); | |
83096483 | 416 | |
ea55addc ZJS |
417 | if (q > 0) |
418 | return 1; | |
83096483 LP |
419 | |
420 | if (r == 0) | |
421 | r = q; | |
422 | ||
423 | } else if (de->d_type == DT_LNK) { | |
7fd1b19b | 424 | _cleanup_free_ char *p = NULL, *dest = NULL; |
83096483 LP |
425 | bool found_path, found_dest, b = false; |
426 | int q; | |
427 | ||
428 | /* Acquire symlink name */ | |
429 | p = path_make_absolute(de->d_name, path); | |
ea55addc ZJS |
430 | if (!p) |
431 | return -ENOMEM; | |
83096483 LP |
432 | |
433 | /* Acquire symlink destination */ | |
434 | q = readlink_and_canonicalize(p, &dest); | |
435 | if (q < 0) { | |
83096483 LP |
436 | if (q == -ENOENT) |
437 | continue; | |
438 | ||
439 | if (r == 0) | |
440 | r = q; | |
441 | continue; | |
442 | } | |
443 | ||
444 | /* Check if the symlink itself matches what we | |
445 | * are looking for */ | |
446 | if (path_is_absolute(name)) | |
447 | found_path = path_equal(p, name); | |
448 | else | |
449 | found_path = streq(de->d_name, name); | |
450 | ||
451 | /* Check if what the symlink points to | |
452 | * matches what we are looking for */ | |
453 | if (path_is_absolute(name)) | |
454 | found_dest = path_equal(dest, name); | |
455 | else | |
9eb977db | 456 | found_dest = streq(path_get_file_name(dest), name); |
83096483 | 457 | |
83096483 | 458 | if (found_path && found_dest) { |
7fd1b19b | 459 | _cleanup_free_ char *t = NULL; |
83096483 LP |
460 | |
461 | /* Filter out same name links in the main | |
462 | * config path */ | |
463 | t = path_make_absolute(name, config_path); | |
ea55addc ZJS |
464 | if (!t) |
465 | return -ENOMEM; | |
83096483 LP |
466 | |
467 | b = path_equal(t, p); | |
83096483 LP |
468 | } |
469 | ||
83096483 LP |
470 | if (b) |
471 | *same_name_link = true; | |
ea55addc ZJS |
472 | else if (found_path || found_dest) |
473 | return 1; | |
83096483 LP |
474 | } |
475 | } | |
476 | ||
83096483 LP |
477 | return r; |
478 | } | |
479 | ||
480 | static int find_symlinks( | |
481 | const char *name, | |
482 | const char *config_path, | |
483 | bool *same_name_link) { | |
484 | ||
485 | int fd; | |
486 | ||
487 | assert(name); | |
488 | assert(config_path); | |
489 | assert(same_name_link); | |
490 | ||
491 | fd = open(config_path, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW); | |
d5891fda ZJS |
492 | if (fd < 0) { |
493 | if (errno == ENOENT) | |
494 | return 0; | |
83096483 | 495 | return -errno; |
d5891fda | 496 | } |
83096483 LP |
497 | |
498 | /* This takes possession of fd and closes it */ | |
499 | return find_symlinks_fd(name, fd, config_path, config_path, same_name_link); | |
500 | } | |
501 | ||
502 | static int find_symlinks_in_scope( | |
503 | UnitFileScope scope, | |
504 | const char *root_dir, | |
505 | const char *name, | |
506 | UnitFileState *state) { | |
507 | ||
508 | int r; | |
d7b478b4 | 509 | _cleanup_free_ char *path2 = NULL; |
83096483 LP |
510 | bool same_name_link_runtime = false, same_name_link = false; |
511 | ||
512 | assert(scope >= 0); | |
513 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
514 | assert(name); | |
515 | ||
516 | if (scope == UNIT_FILE_SYSTEM || scope == UNIT_FILE_GLOBAL) { | |
d7b478b4 | 517 | _cleanup_free_ char *path = NULL; |
83096483 LP |
518 | |
519 | /* First look in runtime config path */ | |
520 | r = get_config_path(scope, true, root_dir, &path); | |
521 | if (r < 0) | |
522 | return r; | |
523 | ||
524 | r = find_symlinks(name, path, &same_name_link_runtime); | |
83096483 LP |
525 | if (r < 0) |
526 | return r; | |
527 | else if (r > 0) { | |
528 | *state = UNIT_FILE_ENABLED_RUNTIME; | |
529 | return r; | |
530 | } | |
531 | } | |
532 | ||
533 | /* Then look in the normal config path */ | |
d7b478b4 | 534 | r = get_config_path(scope, false, root_dir, &path2); |
83096483 LP |
535 | if (r < 0) |
536 | return r; | |
537 | ||
d7b478b4 | 538 | r = find_symlinks(name, path2, &same_name_link); |
83096483 LP |
539 | if (r < 0) |
540 | return r; | |
541 | else if (r > 0) { | |
542 | *state = UNIT_FILE_ENABLED; | |
543 | return r; | |
544 | } | |
545 | ||
546 | /* Hmm, we didn't find it, but maybe we found the same name | |
547 | * link? */ | |
548 | if (same_name_link_runtime) { | |
549 | *state = UNIT_FILE_LINKED_RUNTIME; | |
550 | return 1; | |
551 | } else if (same_name_link) { | |
552 | *state = UNIT_FILE_LINKED; | |
553 | return 1; | |
554 | } | |
555 | ||
556 | return 0; | |
557 | } | |
558 | ||
559 | int unit_file_mask( | |
560 | UnitFileScope scope, | |
561 | bool runtime, | |
562 | const char *root_dir, | |
563 | char *files[], | |
564 | bool force, | |
565 | UnitFileChange **changes, | |
566 | unsigned *n_changes) { | |
567 | ||
d8831ed5 | 568 | char **i; |
7fd1b19b | 569 | _cleanup_free_ char *prefix; |
83096483 LP |
570 | int r; |
571 | ||
572 | assert(scope >= 0); | |
573 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
574 | ||
575 | r = get_config_path(scope, runtime, root_dir, &prefix); | |
576 | if (r < 0) | |
577 | return r; | |
578 | ||
579 | STRV_FOREACH(i, files) { | |
7fd1b19b | 580 | _cleanup_free_ char *path = NULL; |
83096483 | 581 | |
5f739699 | 582 | if (!unit_name_is_valid(*i, true)) { |
83096483 LP |
583 | if (r == 0) |
584 | r = -EINVAL; | |
585 | continue; | |
586 | } | |
587 | ||
588 | path = path_make_absolute(*i, prefix); | |
589 | if (!path) { | |
590 | r = -ENOMEM; | |
591 | break; | |
592 | } | |
593 | ||
594 | if (symlink("/dev/null", path) >= 0) { | |
595 | add_file_change(changes, n_changes, UNIT_FILE_SYMLINK, path, "/dev/null"); | |
596 | ||
83096483 LP |
597 | continue; |
598 | } | |
599 | ||
600 | if (errno == EEXIST) { | |
601 | ||
d8831ed5 | 602 | if (null_or_empty_path(path) > 0) |
83096483 | 603 | continue; |
83096483 LP |
604 | |
605 | if (force) { | |
606 | unlink(path); | |
607 | ||
608 | if (symlink("/dev/null", path) >= 0) { | |
609 | ||
610 | add_file_change(changes, n_changes, UNIT_FILE_UNLINK, path, NULL); | |
611 | add_file_change(changes, n_changes, UNIT_FILE_SYMLINK, path, "/dev/null"); | |
612 | ||
83096483 LP |
613 | continue; |
614 | } | |
615 | } | |
616 | ||
617 | if (r == 0) | |
618 | r = -EEXIST; | |
619 | } else { | |
620 | if (r == 0) | |
621 | r = -errno; | |
622 | } | |
83096483 LP |
623 | } |
624 | ||
83096483 LP |
625 | return r; |
626 | } | |
627 | ||
628 | int unit_file_unmask( | |
629 | UnitFileScope scope, | |
630 | bool runtime, | |
631 | const char *root_dir, | |
632 | char *files[], | |
633 | UnitFileChange **changes, | |
634 | unsigned *n_changes) { | |
635 | ||
636 | char **i, *config_path = NULL; | |
637 | int r, q; | |
638 | Set *remove_symlinks_to = NULL; | |
639 | ||
640 | assert(scope >= 0); | |
641 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
642 | ||
643 | r = get_config_path(scope, runtime, root_dir, &config_path); | |
644 | if (r < 0) | |
645 | goto finish; | |
646 | ||
647 | STRV_FOREACH(i, files) { | |
648 | char *path; | |
649 | ||
5f739699 | 650 | if (!unit_name_is_valid(*i, true)) { |
83096483 LP |
651 | if (r == 0) |
652 | r = -EINVAL; | |
653 | continue; | |
654 | } | |
655 | ||
656 | path = path_make_absolute(*i, config_path); | |
657 | if (!path) { | |
658 | r = -ENOMEM; | |
659 | break; | |
660 | } | |
661 | ||
662 | q = null_or_empty_path(path); | |
663 | if (q > 0) { | |
664 | if (unlink(path) >= 0) { | |
665 | mark_symlink_for_removal(&remove_symlinks_to, path); | |
666 | add_file_change(changes, n_changes, UNIT_FILE_UNLINK, path, NULL); | |
667 | ||
668 | free(path); | |
669 | continue; | |
670 | } | |
671 | ||
672 | q = -errno; | |
673 | } | |
674 | ||
675 | if (q != -ENOENT && r == 0) | |
676 | r = q; | |
677 | ||
678 | free(path); | |
679 | } | |
680 | ||
681 | ||
682 | finish: | |
29283ea4 | 683 | q = remove_marked_symlinks(remove_symlinks_to, config_path, changes, n_changes, files); |
83096483 LP |
684 | if (r == 0) |
685 | r = q; | |
686 | ||
687 | set_free_free(remove_symlinks_to); | |
688 | free(config_path); | |
689 | ||
690 | return r; | |
691 | } | |
692 | ||
693 | int unit_file_link( | |
694 | UnitFileScope scope, | |
695 | bool runtime, | |
696 | const char *root_dir, | |
697 | char *files[], | |
698 | bool force, | |
699 | UnitFileChange **changes, | |
700 | unsigned *n_changes) { | |
701 | ||
7fd1b19b | 702 | _cleanup_lookup_paths_free_ LookupPaths paths = {}; |
d9e5e694 | 703 | char **i; |
7fd1b19b | 704 | _cleanup_free_ char *config_path = NULL; |
83096483 LP |
705 | int r, q; |
706 | ||
707 | assert(scope >= 0); | |
708 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
709 | ||
83096483 LP |
710 | r = lookup_paths_init_from_scope(&paths, scope); |
711 | if (r < 0) | |
712 | return r; | |
713 | ||
714 | r = get_config_path(scope, runtime, root_dir, &config_path); | |
715 | if (r < 0) | |
d9e5e694 | 716 | return r; |
83096483 LP |
717 | |
718 | STRV_FOREACH(i, files) { | |
7fd1b19b | 719 | _cleanup_free_ char *path = NULL; |
d9e5e694 | 720 | char *fn; |
83096483 LP |
721 | struct stat st; |
722 | ||
9eb977db | 723 | fn = path_get_file_name(*i); |
83096483 LP |
724 | |
725 | if (!path_is_absolute(*i) || | |
5f739699 | 726 | !unit_name_is_valid(fn, true)) { |
83096483 LP |
727 | if (r == 0) |
728 | r = -EINVAL; | |
729 | continue; | |
730 | } | |
731 | ||
732 | if (lstat(*i, &st) < 0) { | |
733 | if (r == 0) | |
734 | r = -errno; | |
735 | continue; | |
736 | } | |
737 | ||
738 | if (!S_ISREG(st.st_mode)) { | |
739 | r = -ENOENT; | |
740 | continue; | |
741 | } | |
742 | ||
743 | q = in_search_path(*i, paths.unit_path); | |
d9e5e694 ZJS |
744 | if (q < 0) |
745 | return q; | |
83096483 LP |
746 | |
747 | if (q > 0) | |
748 | continue; | |
749 | ||
750 | path = path_make_absolute(fn, config_path); | |
d9e5e694 ZJS |
751 | if (!path) |
752 | return -ENOMEM; | |
83096483 LP |
753 | |
754 | if (symlink(*i, path) >= 0) { | |
755 | add_file_change(changes, n_changes, UNIT_FILE_SYMLINK, path, *i); | |
83096483 LP |
756 | continue; |
757 | } | |
758 | ||
759 | if (errno == EEXIST) { | |
7fd1b19b | 760 | _cleanup_free_ char *dest = NULL; |
83096483 LP |
761 | |
762 | q = readlink_and_make_absolute(path, &dest); | |
763 | ||
764 | if (q < 0 && errno != ENOENT) { | |
83096483 LP |
765 | if (r == 0) |
766 | r = q; | |
83096483 LP |
767 | continue; |
768 | } | |
769 | ||
d9e5e694 | 770 | if (q >= 0 && path_equal(dest, *i)) |
83096483 | 771 | continue; |
83096483 LP |
772 | |
773 | if (force) { | |
774 | unlink(path); | |
775 | ||
776 | if (symlink(*i, path) >= 0) { | |
777 | ||
778 | add_file_change(changes, n_changes, UNIT_FILE_UNLINK, path, NULL); | |
779 | add_file_change(changes, n_changes, UNIT_FILE_SYMLINK, path, *i); | |
780 | ||
83096483 LP |
781 | continue; |
782 | } | |
783 | } | |
784 | ||
785 | if (r == 0) | |
786 | r = -EEXIST; | |
787 | } else { | |
788 | if (r == 0) | |
789 | r = -errno; | |
790 | } | |
83096483 LP |
791 | } |
792 | ||
83096483 LP |
793 | return r; |
794 | } | |
795 | ||
796 | void unit_file_list_free(Hashmap *h) { | |
797 | UnitFileList *i; | |
798 | ||
799 | while ((i = hashmap_steal_first(h))) { | |
800 | free(i->path); | |
801 | free(i); | |
802 | } | |
803 | ||
804 | hashmap_free(h); | |
805 | } | |
806 | ||
807 | void unit_file_changes_free(UnitFileChange *changes, unsigned n_changes) { | |
808 | unsigned i; | |
809 | ||
810 | assert(changes || n_changes == 0); | |
811 | ||
812 | if (!changes) | |
813 | return; | |
814 | ||
815 | for (i = 0; i < n_changes; i++) { | |
816 | free(changes[i].path); | |
817 | free(changes[i].source); | |
818 | } | |
819 | ||
820 | free(changes); | |
821 | } | |
822 | ||
823 | static void install_info_free(InstallInfo *i) { | |
824 | assert(i); | |
825 | ||
826 | free(i->name); | |
827 | free(i->path); | |
828 | strv_free(i->aliases); | |
829 | strv_free(i->wanted_by); | |
78d54bd4 | 830 | strv_free(i->required_by); |
83096483 LP |
831 | free(i); |
832 | } | |
833 | ||
834 | static void install_info_hashmap_free(Hashmap *m) { | |
835 | InstallInfo *i; | |
836 | ||
837 | if (!m) | |
838 | return; | |
839 | ||
840 | while ((i = hashmap_steal_first(m))) | |
841 | install_info_free(i); | |
842 | ||
843 | hashmap_free(m); | |
844 | } | |
845 | ||
846 | static void install_context_done(InstallContext *c) { | |
847 | assert(c); | |
848 | ||
849 | install_info_hashmap_free(c->will_install); | |
850 | install_info_hashmap_free(c->have_installed); | |
851 | ||
852 | c->will_install = c->have_installed = NULL; | |
853 | } | |
854 | ||
855 | static int install_info_add( | |
856 | InstallContext *c, | |
857 | const char *name, | |
858 | const char *path) { | |
859 | InstallInfo *i = NULL; | |
860 | int r; | |
861 | ||
862 | assert(c); | |
863 | assert(name || path); | |
864 | ||
865 | if (!name) | |
9eb977db | 866 | name = path_get_file_name(path); |
83096483 | 867 | |
5f739699 | 868 | if (!unit_name_is_valid(name, true)) |
83096483 LP |
869 | return -EINVAL; |
870 | ||
871 | if (hashmap_get(c->have_installed, name) || | |
872 | hashmap_get(c->will_install, name)) | |
873 | return 0; | |
874 | ||
875 | r = hashmap_ensure_allocated(&c->will_install, string_hash_func, string_compare_func); | |
876 | if (r < 0) | |
877 | return r; | |
878 | ||
879 | i = new0(InstallInfo, 1); | |
880 | if (!i) | |
881 | return -ENOMEM; | |
882 | ||
883 | i->name = strdup(name); | |
884 | if (!i->name) { | |
885 | r = -ENOMEM; | |
886 | goto fail; | |
887 | } | |
888 | ||
889 | if (path) { | |
890 | i->path = strdup(path); | |
891 | if (!i->path) { | |
892 | r = -ENOMEM; | |
893 | goto fail; | |
894 | } | |
895 | } | |
896 | ||
897 | r = hashmap_put(c->will_install, i->name, i); | |
898 | if (r < 0) | |
899 | goto fail; | |
900 | ||
901 | return 0; | |
902 | ||
903 | fail: | |
904 | if (i) | |
905 | install_info_free(i); | |
906 | ||
907 | return r; | |
908 | } | |
909 | ||
910 | static int install_info_add_auto( | |
911 | InstallContext *c, | |
912 | const char *name_or_path) { | |
913 | ||
914 | assert(c); | |
915 | assert(name_or_path); | |
916 | ||
917 | if (path_is_absolute(name_or_path)) | |
918 | return install_info_add(c, NULL, name_or_path); | |
919 | else | |
920 | return install_info_add(c, name_or_path, NULL); | |
921 | } | |
922 | ||
e8e581bf ZJS |
923 | static int config_parse_also(const char *unit, |
924 | const char *filename, | |
925 | unsigned line, | |
926 | const char *section, | |
927 | const char *lvalue, | |
928 | int ltype, | |
929 | const char *rvalue, | |
930 | void *data, | |
931 | void *userdata) { | |
83096483 LP |
932 | |
933 | char *w; | |
934 | size_t l; | |
935 | char *state; | |
936 | InstallContext *c = data; | |
937 | ||
938 | assert(filename); | |
939 | assert(lvalue); | |
940 | assert(rvalue); | |
941 | ||
942 | FOREACH_WORD_QUOTED(w, l, rvalue, state) { | |
7fd1b19b | 943 | _cleanup_free_ char *n; |
83096483 LP |
944 | int r; |
945 | ||
946 | n = strndup(w, l); | |
947 | if (!n) | |
948 | return -ENOMEM; | |
949 | ||
950 | r = install_info_add(c, n, NULL); | |
d9e5e694 | 951 | if (r < 0) |
83096483 | 952 | return r; |
83096483 LP |
953 | } |
954 | ||
955 | return 0; | |
956 | } | |
957 | ||
e8e581bf ZJS |
958 | static int config_parse_user(const char *unit, |
959 | const char *filename, | |
960 | unsigned line, | |
961 | const char *section, | |
962 | const char *lvalue, | |
963 | int ltype, | |
964 | const char *rvalue, | |
965 | void *data, | |
966 | void *userdata) { | |
3f0b2f0f ZJS |
967 | |
968 | InstallInfo *i = data; | |
969 | char* printed; | |
970 | ||
971 | assert(filename); | |
972 | assert(lvalue); | |
973 | assert(rvalue); | |
974 | ||
975 | printed = install_full_printf(i, rvalue); | |
976 | if (!printed) | |
977 | return -ENOMEM; | |
978 | ||
979 | free(i->user); | |
980 | i->user = printed; | |
981 | ||
982 | return 0; | |
983 | } | |
984 | ||
83096483 LP |
985 | static int unit_file_load( |
986 | InstallContext *c, | |
987 | InstallInfo *info, | |
988 | const char *path, | |
989 | bool allow_symlink) { | |
990 | ||
f975e971 | 991 | const ConfigTableItem items[] = { |
78d54bd4 LP |
992 | { "Install", "Alias", config_parse_strv, 0, &info->aliases }, |
993 | { "Install", "WantedBy", config_parse_strv, 0, &info->wanted_by }, | |
994 | { "Install", "RequiredBy", config_parse_strv, 0, &info->required_by }, | |
995 | { "Install", "Also", config_parse_also, 0, c }, | |
3f0b2f0f | 996 | { "Exec", "User", config_parse_user, 0, info }, |
f975e971 | 997 | { NULL, NULL, NULL, 0, NULL } |
83096483 LP |
998 | }; |
999 | ||
1000 | int fd; | |
7fd1b19b | 1001 | _cleanup_fclose_ FILE *f = NULL; |
83096483 LP |
1002 | int r; |
1003 | ||
1004 | assert(c); | |
1005 | assert(info); | |
1006 | assert(path); | |
1007 | ||
1008 | fd = open(path, O_RDONLY|O_CLOEXEC|O_NOCTTY|(allow_symlink ? 0 : O_NOFOLLOW)); | |
1009 | if (fd < 0) | |
1010 | return -errno; | |
1011 | ||
1012 | f = fdopen(fd, "re"); | |
1013 | if (!f) { | |
1014 | close_nointr_nofail(fd); | |
1015 | return -ENOMEM; | |
1016 | } | |
1017 | ||
e8e581bf | 1018 | r = config_parse(NULL, path, f, NULL, |
db5c0122 | 1019 | config_item_table_lookup, (void*) items, true, true, info); |
83096483 LP |
1020 | if (r < 0) |
1021 | return r; | |
1022 | ||
78d54bd4 LP |
1023 | return |
1024 | strv_length(info->aliases) + | |
1025 | strv_length(info->wanted_by) + | |
1026 | strv_length(info->required_by); | |
83096483 LP |
1027 | } |
1028 | ||
1029 | static int unit_file_search( | |
1030 | InstallContext *c, | |
1031 | InstallInfo *info, | |
1032 | LookupPaths *paths, | |
1033 | const char *root_dir, | |
1034 | bool allow_symlink) { | |
1035 | ||
1036 | char **p; | |
1037 | int r; | |
1038 | ||
1039 | assert(c); | |
1040 | assert(info); | |
1041 | assert(paths); | |
1042 | ||
1043 | if (info->path) | |
1044 | return unit_file_load(c, info, info->path, allow_symlink); | |
1045 | ||
1046 | assert(info->name); | |
1047 | ||
1048 | STRV_FOREACH(p, paths->unit_path) { | |
1049 | char *path = NULL; | |
1050 | ||
1051 | if (isempty(root_dir)) | |
1052 | asprintf(&path, "%s/%s", *p, info->name); | |
1053 | else | |
1054 | asprintf(&path, "%s/%s/%s", root_dir, *p, info->name); | |
1055 | ||
1056 | if (!path) | |
1057 | return -ENOMEM; | |
1058 | ||
1059 | r = unit_file_load(c, info, path, allow_symlink); | |
1060 | ||
1061 | if (r >= 0) | |
1062 | info->path = path; | |
29283ea4 MS |
1063 | else { |
1064 | if (r == -ENOENT && unit_name_is_instance(info->name)) { | |
6c5a2825 ZJS |
1065 | /* Unit file doesn't exist, however instance enablement was requested. |
1066 | * We will check if it is possible to load template unit file. */ | |
29283ea4 MS |
1067 | char *template = NULL, |
1068 | *template_path = NULL, | |
1069 | *template_dir = NULL; | |
1070 | ||
1071 | template = unit_name_template(info->name); | |
1072 | if (!template) { | |
1073 | free(path); | |
1074 | return -ENOMEM; | |
1075 | } | |
1076 | ||
6c5a2825 | 1077 | /* We will reuse path variable since we don't need it anymore. */ |
29283ea4 MS |
1078 | template_dir = path; |
1079 | *(strrchr(path, '/') + 1) = '\0'; | |
1080 | ||
1081 | template_path = strjoin(template_dir, template, NULL); | |
1082 | if (!template_path) { | |
1083 | free(path); | |
1084 | free(template); | |
1085 | return -ENOMEM; | |
1086 | } | |
1087 | ||
6c5a2825 | 1088 | /* Let's try to load template unit. */ |
29283ea4 MS |
1089 | r = unit_file_load(c, info, template_path, allow_symlink); |
1090 | if (r >= 0) { | |
1091 | info->path = strdup(template_path); | |
1092 | if (!info->path) { | |
1093 | free(path); | |
1094 | free(template); | |
1095 | free(template_path); | |
1096 | return -ENOMEM; | |
1097 | } | |
1098 | } | |
1099 | ||
1100 | free(template); | |
1101 | free(template_path); | |
1102 | } | |
83096483 | 1103 | free(path); |
29283ea4 | 1104 | } |
83096483 LP |
1105 | |
1106 | if (r != -ENOENT && r != -ELOOP) | |
1107 | return r; | |
1108 | } | |
1109 | ||
1110 | return -ENOENT; | |
1111 | } | |
1112 | ||
1113 | static int unit_file_can_install( | |
1114 | LookupPaths *paths, | |
1115 | const char *root_dir, | |
1116 | const char *name, | |
1117 | bool allow_symlink) { | |
1118 | ||
7fd1b19b | 1119 | _cleanup_install_context_done_ InstallContext c = {}; |
83096483 LP |
1120 | InstallInfo *i; |
1121 | int r; | |
1122 | ||
1123 | assert(paths); | |
1124 | assert(name); | |
1125 | ||
83096483 LP |
1126 | r = install_info_add_auto(&c, name); |
1127 | if (r < 0) | |
1128 | return r; | |
1129 | ||
1130 | assert_se(i = hashmap_first(c.will_install)); | |
1131 | ||
1132 | r = unit_file_search(&c, i, paths, root_dir, allow_symlink); | |
1133 | ||
1134 | if (r >= 0) | |
78d54bd4 LP |
1135 | r = |
1136 | strv_length(i->aliases) + | |
1137 | strv_length(i->wanted_by) + | |
1138 | strv_length(i->required_by); | |
83096483 | 1139 | |
83096483 LP |
1140 | return r; |
1141 | } | |
1142 | ||
1143 | static int create_symlink( | |
1144 | const char *old_path, | |
1145 | const char *new_path, | |
1146 | bool force, | |
1147 | UnitFileChange **changes, | |
1148 | unsigned *n_changes) { | |
1149 | ||
7fd1b19b | 1150 | _cleanup_free_ char *dest = NULL; |
83096483 LP |
1151 | int r; |
1152 | ||
1153 | assert(old_path); | |
1154 | assert(new_path); | |
1155 | ||
d2e54fae | 1156 | mkdir_parents_label(new_path, 0755); |
83096483 LP |
1157 | |
1158 | if (symlink(old_path, new_path) >= 0) { | |
1159 | add_file_change(changes, n_changes, UNIT_FILE_SYMLINK, new_path, old_path); | |
1160 | return 0; | |
1161 | } | |
1162 | ||
1163 | if (errno != EEXIST) | |
1164 | return -errno; | |
1165 | ||
1166 | r = readlink_and_make_absolute(new_path, &dest); | |
1167 | if (r < 0) | |
1168 | return r; | |
1169 | ||
d9e5e694 | 1170 | if (path_equal(dest, old_path)) |
83096483 | 1171 | return 0; |
83096483 | 1172 | |
ba49b4a1 | 1173 | if (!force) |
83096483 LP |
1174 | return -EEXIST; |
1175 | ||
1176 | unlink(new_path); | |
1177 | ||
1178 | if (symlink(old_path, new_path) >= 0) { | |
1179 | add_file_change(changes, n_changes, UNIT_FILE_UNLINK, new_path, NULL); | |
1180 | add_file_change(changes, n_changes, UNIT_FILE_SYMLINK, new_path, old_path); | |
1181 | return 0; | |
1182 | } | |
1183 | ||
1184 | return -errno; | |
1185 | } | |
1186 | ||
1187 | static int install_info_symlink_alias( | |
1188 | InstallInfo *i, | |
1189 | const char *config_path, | |
1190 | bool force, | |
1191 | UnitFileChange **changes, | |
1192 | unsigned *n_changes) { | |
1193 | ||
1194 | char **s; | |
1195 | int r = 0, q; | |
1196 | ||
1197 | assert(i); | |
1198 | assert(config_path); | |
1199 | ||
1200 | STRV_FOREACH(s, i->aliases) { | |
7fd1b19b | 1201 | _cleanup_free_ char *alias_path = NULL, *dst = NULL; |
83096483 | 1202 | |
7584d236 ZJS |
1203 | dst = install_full_printf(i, *s); |
1204 | if (!dst) | |
1205 | return -ENOMEM; | |
83096483 | 1206 | |
7584d236 | 1207 | alias_path = path_make_absolute(dst, config_path); |
83096483 LP |
1208 | if (!alias_path) |
1209 | return -ENOMEM; | |
1210 | ||
1211 | q = create_symlink(i->path, alias_path, force, changes, n_changes); | |
83096483 LP |
1212 | if (r == 0) |
1213 | r = q; | |
1214 | } | |
1215 | ||
1216 | return r; | |
1217 | } | |
1218 | ||
1219 | static int install_info_symlink_wants( | |
1220 | InstallInfo *i, | |
1221 | const char *config_path, | |
1222 | bool force, | |
1223 | UnitFileChange **changes, | |
1224 | unsigned *n_changes) { | |
1225 | ||
1226 | char **s; | |
1227 | int r = 0, q; | |
1228 | ||
1229 | assert(i); | |
1230 | assert(config_path); | |
1231 | ||
1232 | STRV_FOREACH(s, i->wanted_by) { | |
7fd1b19b | 1233 | _cleanup_free_ char *path = NULL, *dst = NULL; |
83096483 | 1234 | |
7584d236 ZJS |
1235 | dst = install_full_printf(i, *s); |
1236 | if (!dst) | |
1237 | return -ENOMEM; | |
1238 | ||
1239 | if (!unit_name_is_valid(dst, true)) { | |
83096483 LP |
1240 | r = -EINVAL; |
1241 | continue; | |
1242 | } | |
1243 | ||
7584d236 | 1244 | if (asprintf(&path, "%s/%s.wants/%s", config_path, dst, i->name) < 0) |
83096483 LP |
1245 | return -ENOMEM; |
1246 | ||
1247 | q = create_symlink(i->path, path, force, changes, n_changes); | |
83096483 LP |
1248 | |
1249 | if (r == 0) | |
1250 | r = q; | |
1251 | } | |
1252 | ||
1253 | return r; | |
1254 | } | |
1255 | ||
78d54bd4 LP |
1256 | static int install_info_symlink_requires( |
1257 | InstallInfo *i, | |
1258 | const char *config_path, | |
1259 | bool force, | |
1260 | UnitFileChange **changes, | |
1261 | unsigned *n_changes) { | |
1262 | ||
1263 | char **s; | |
1264 | int r = 0, q; | |
1265 | ||
1266 | assert(i); | |
1267 | assert(config_path); | |
1268 | ||
1269 | STRV_FOREACH(s, i->required_by) { | |
7fd1b19b | 1270 | _cleanup_free_ char *path = NULL, *dst = NULL; |
78d54bd4 | 1271 | |
7584d236 ZJS |
1272 | dst = install_full_printf(i, *s); |
1273 | if (!dst) | |
1274 | return -ENOMEM; | |
1275 | ||
1276 | if (!unit_name_is_valid(dst, true)) { | |
78d54bd4 LP |
1277 | r = -EINVAL; |
1278 | continue; | |
1279 | } | |
1280 | ||
7584d236 | 1281 | if (asprintf(&path, "%s/%s.requires/%s", config_path, dst, i->name) < 0) |
78d54bd4 LP |
1282 | return -ENOMEM; |
1283 | ||
1284 | q = create_symlink(i->path, path, force, changes, n_changes); | |
78d54bd4 LP |
1285 | |
1286 | if (r == 0) | |
1287 | r = q; | |
1288 | } | |
1289 | ||
1290 | return r; | |
1291 | } | |
1292 | ||
83096483 LP |
1293 | static int install_info_symlink_link( |
1294 | InstallInfo *i, | |
1295 | LookupPaths *paths, | |
1296 | const char *config_path, | |
1297 | bool force, | |
1298 | UnitFileChange **changes, | |
1299 | unsigned *n_changes) { | |
1300 | ||
1301 | int r; | |
7fd1b19b | 1302 | _cleanup_free_ char *path = NULL; |
83096483 LP |
1303 | |
1304 | assert(i); | |
1305 | assert(paths); | |
1306 | assert(config_path); | |
1307 | assert(i->path); | |
1308 | ||
1309 | r = in_search_path(i->path, paths->unit_path); | |
1310 | if (r != 0) | |
1311 | return r; | |
1312 | ||
1313 | if (asprintf(&path, "%s/%s", config_path, i->name) < 0) | |
1314 | return -ENOMEM; | |
1315 | ||
1316 | r = create_symlink(i->path, path, force, changes, n_changes); | |
83096483 LP |
1317 | return r; |
1318 | } | |
1319 | ||
1320 | static int install_info_apply( | |
1321 | InstallInfo *i, | |
1322 | LookupPaths *paths, | |
1323 | const char *config_path, | |
1324 | bool force, | |
1325 | UnitFileChange **changes, | |
1326 | unsigned *n_changes) { | |
1327 | ||
1328 | int r, q; | |
1329 | ||
1330 | assert(i); | |
1331 | assert(paths); | |
1332 | assert(config_path); | |
1333 | ||
1334 | r = install_info_symlink_alias(i, config_path, force, changes, n_changes); | |
1335 | ||
1336 | q = install_info_symlink_wants(i, config_path, force, changes, n_changes); | |
1337 | if (r == 0) | |
1338 | r = q; | |
1339 | ||
78d54bd4 LP |
1340 | q = install_info_symlink_requires(i, config_path, force, changes, n_changes); |
1341 | if (r == 0) | |
1342 | r = q; | |
1343 | ||
83096483 LP |
1344 | q = install_info_symlink_link(i, paths, config_path, force, changes, n_changes); |
1345 | if (r == 0) | |
1346 | r = q; | |
1347 | ||
1348 | return r; | |
1349 | } | |
1350 | ||
1351 | static int install_context_apply( | |
1352 | InstallContext *c, | |
1353 | LookupPaths *paths, | |
1354 | const char *config_path, | |
1355 | const char *root_dir, | |
1356 | bool force, | |
1357 | UnitFileChange **changes, | |
1358 | unsigned *n_changes) { | |
1359 | ||
1360 | InstallInfo *i; | |
1361 | int r = 0, q; | |
1362 | ||
1363 | assert(c); | |
1364 | assert(paths); | |
1365 | assert(config_path); | |
1366 | ||
1367 | while ((i = hashmap_first(c->will_install))) { | |
1368 | ||
1369 | q = hashmap_ensure_allocated(&c->have_installed, string_hash_func, string_compare_func); | |
1370 | if (q < 0) | |
1371 | return q; | |
1372 | ||
1373 | assert_se(hashmap_move_one(c->have_installed, c->will_install, i->name) == 0); | |
1374 | ||
1375 | q = unit_file_search(c, i, paths, root_dir, false); | |
1376 | if (q < 0) { | |
1377 | if (r >= 0) | |
1378 | r = q; | |
1379 | ||
1380 | return r; | |
1381 | } else if (r >= 0) | |
1382 | r += q; | |
1383 | ||
1384 | q = install_info_apply(i, paths, config_path, force, changes, n_changes); | |
1385 | if (r >= 0 && q < 0) | |
1386 | r = q; | |
1387 | } | |
1388 | ||
1389 | return r; | |
1390 | } | |
1391 | ||
1392 | static int install_context_mark_for_removal( | |
1393 | InstallContext *c, | |
1394 | LookupPaths *paths, | |
1395 | Set **remove_symlinks_to, | |
1396 | const char *config_path, | |
1397 | const char *root_dir) { | |
1398 | ||
1399 | InstallInfo *i; | |
1400 | int r = 0, q; | |
1401 | ||
1402 | assert(c); | |
1403 | assert(paths); | |
1404 | assert(config_path); | |
1405 | ||
1406 | /* Marks all items for removal */ | |
1407 | ||
1408 | while ((i = hashmap_first(c->will_install))) { | |
1409 | ||
1410 | q = hashmap_ensure_allocated(&c->have_installed, string_hash_func, string_compare_func); | |
1411 | if (q < 0) | |
1412 | return q; | |
1413 | ||
1414 | assert_se(hashmap_move_one(c->have_installed, c->will_install, i->name) == 0); | |
1415 | ||
1416 | q = unit_file_search(c, i, paths, root_dir, false); | |
02b9e969 ZJS |
1417 | if (q == -ENOENT) { |
1418 | /* do nothing */ | |
1419 | } else if (q < 0) { | |
83096483 LP |
1420 | if (r >= 0) |
1421 | r = q; | |
1422 | ||
1423 | return r; | |
1424 | } else if (r >= 0) | |
1425 | r += q; | |
1426 | ||
29283ea4 | 1427 | if (unit_name_is_instance(i->name)) { |
6c5a2825 ZJS |
1428 | char *unit_file; |
1429 | ||
1430 | if (i->path) { | |
1431 | unit_file = path_get_file_name(i->path); | |
1432 | ||
1433 | if (unit_name_is_instance(unit_file)) | |
1434 | /* unit file named as instance exists, thus all symlinks | |
1435 | * pointing to it will be removed */ | |
1436 | q = mark_symlink_for_removal(remove_symlinks_to, i->name); | |
1437 | else | |
1438 | /* does not exist, thus we will mark for removal symlinks | |
1439 | * to template unit file */ | |
1440 | q = mark_symlink_for_removal(remove_symlinks_to, unit_file); | |
1441 | } else { | |
1442 | /* If i->path is not set, it means that we didn't actually find | |
1443 | * the unit file. But we can still remove symlinks to the | |
1444 | * nonexistent template. */ | |
1445 | unit_file = unit_name_template(i->name); | |
1446 | if (!unit_file) | |
1447 | return log_oom(); | |
29283ea4 | 1448 | |
29283ea4 | 1449 | q = mark_symlink_for_removal(remove_symlinks_to, unit_file); |
6c5a2825 ZJS |
1450 | free(unit_file); |
1451 | } | |
29283ea4 MS |
1452 | } else |
1453 | q = mark_symlink_for_removal(remove_symlinks_to, i->name); | |
1454 | ||
83096483 LP |
1455 | if (r >= 0 && q < 0) |
1456 | r = q; | |
1457 | } | |
1458 | ||
1459 | return r; | |
1460 | } | |
1461 | ||
1462 | int unit_file_enable( | |
1463 | UnitFileScope scope, | |
1464 | bool runtime, | |
1465 | const char *root_dir, | |
1466 | char *files[], | |
1467 | bool force, | |
1468 | UnitFileChange **changes, | |
1469 | unsigned *n_changes) { | |
1470 | ||
7fd1b19b HH |
1471 | _cleanup_lookup_paths_free_ LookupPaths paths = {}; |
1472 | _cleanup_install_context_done_ InstallContext c = {}; | |
d9e5e694 | 1473 | char **i; |
7fd1b19b | 1474 | _cleanup_free_ char *config_path = NULL; |
83096483 LP |
1475 | int r; |
1476 | ||
1477 | assert(scope >= 0); | |
1478 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
1479 | ||
83096483 LP |
1480 | r = lookup_paths_init_from_scope(&paths, scope); |
1481 | if (r < 0) | |
1482 | return r; | |
1483 | ||
1484 | r = get_config_path(scope, runtime, root_dir, &config_path); | |
1485 | if (r < 0) | |
d9e5e694 | 1486 | return r; |
83096483 LP |
1487 | |
1488 | STRV_FOREACH(i, files) { | |
1489 | r = install_info_add_auto(&c, *i); | |
1490 | if (r < 0) | |
d9e5e694 | 1491 | return r; |
83096483 LP |
1492 | } |
1493 | ||
729e3769 LP |
1494 | /* This will return the number of symlink rules that were |
1495 | supposed to be created, not the ones actually created. This is | |
20f59e42 | 1496 | useful to determine whether the passed files had any |
729e3769 | 1497 | installation data at all. */ |
83096483 | 1498 | r = install_context_apply(&c, &paths, config_path, root_dir, force, changes, n_changes); |
83096483 LP |
1499 | return r; |
1500 | } | |
1501 | ||
1502 | int unit_file_disable( | |
1503 | UnitFileScope scope, | |
1504 | bool runtime, | |
1505 | const char *root_dir, | |
1506 | char *files[], | |
1507 | UnitFileChange **changes, | |
1508 | unsigned *n_changes) { | |
1509 | ||
7fd1b19b HH |
1510 | _cleanup_lookup_paths_free_ LookupPaths paths = {}; |
1511 | _cleanup_install_context_done_ InstallContext c = {}; | |
d9e5e694 | 1512 | char **i; |
7fd1b19b HH |
1513 | _cleanup_free_ char *config_path = NULL; |
1514 | _cleanup_set_free_free_ Set *remove_symlinks_to = NULL; | |
83096483 LP |
1515 | int r, q; |
1516 | ||
1517 | assert(scope >= 0); | |
1518 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
1519 | ||
83096483 LP |
1520 | r = lookup_paths_init_from_scope(&paths, scope); |
1521 | if (r < 0) | |
1522 | return r; | |
1523 | ||
1524 | r = get_config_path(scope, runtime, root_dir, &config_path); | |
1525 | if (r < 0) | |
d9e5e694 | 1526 | return r; |
83096483 LP |
1527 | |
1528 | STRV_FOREACH(i, files) { | |
1529 | r = install_info_add_auto(&c, *i); | |
1530 | if (r < 0) | |
d9e5e694 | 1531 | return r; |
83096483 LP |
1532 | } |
1533 | ||
1534 | r = install_context_mark_for_removal(&c, &paths, &remove_symlinks_to, config_path, root_dir); | |
1535 | ||
29283ea4 | 1536 | q = remove_marked_symlinks(remove_symlinks_to, config_path, changes, n_changes, files); |
83096483 | 1537 | if (r == 0) |
034a2a52 | 1538 | r = q; |
83096483 | 1539 | |
83096483 LP |
1540 | return r; |
1541 | } | |
1542 | ||
1543 | int unit_file_reenable( | |
1544 | UnitFileScope scope, | |
1545 | bool runtime, | |
1546 | const char *root_dir, | |
1547 | char *files[], | |
1548 | bool force, | |
1549 | UnitFileChange **changes, | |
1550 | unsigned *n_changes) { | |
92d430a9 | 1551 | int r; |
83096483 | 1552 | |
92d430a9 RL |
1553 | r = unit_file_disable(scope, runtime, root_dir, files, |
1554 | changes, n_changes); | |
83096483 | 1555 | if (r < 0) |
d9e5e694 | 1556 | return r; |
83096483 | 1557 | |
92d430a9 RL |
1558 | return unit_file_enable(scope, runtime, root_dir, files, force, |
1559 | changes, n_changes); | |
83096483 LP |
1560 | } |
1561 | ||
99504dd4 VP |
1562 | int unit_file_set_default( |
1563 | UnitFileScope scope, | |
1564 | const char *root_dir, | |
1565 | char *file, | |
1566 | UnitFileChange **changes, | |
1567 | unsigned *n_changes) { | |
1568 | ||
1569 | _cleanup_lookup_paths_free_ LookupPaths paths = {}; | |
1570 | _cleanup_install_context_done_ InstallContext c = {}; | |
1571 | _cleanup_free_ char *config_path = NULL; | |
1572 | char *path; | |
1573 | int r; | |
1574 | InstallInfo *i = NULL; | |
1575 | ||
1576 | assert(scope >= 0); | |
1577 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
1578 | ||
1579 | if (unit_name_to_type(file) != UNIT_TARGET) | |
1580 | return -EINVAL; | |
1581 | ||
1582 | r = lookup_paths_init_from_scope(&paths, scope); | |
1583 | if (r < 0) | |
1584 | return r; | |
1585 | ||
1586 | r = get_config_path(scope, false, root_dir, &config_path); | |
1587 | if (r < 0) | |
1588 | return r; | |
1589 | ||
1590 | r = install_info_add_auto(&c, file); | |
1591 | if (r < 0) | |
1592 | return r; | |
1593 | ||
1594 | i = (InstallInfo*)hashmap_first(c.will_install); | |
1595 | ||
1596 | r = unit_file_search(&c, i, &paths, root_dir, false); | |
1597 | if (r < 0) | |
1598 | return r; | |
1599 | ||
1600 | path = strappenda(config_path, "/default.target"); | |
1601 | r = create_symlink(i->path, path, true, changes, n_changes); | |
1602 | if (r < 0) | |
1603 | return r; | |
1604 | ||
1605 | return 0; | |
1606 | } | |
1607 | ||
1608 | int unit_file_get_default( | |
1609 | UnitFileScope scope, | |
1610 | const char *root_dir, | |
1611 | char **name) { | |
1612 | ||
1613 | _cleanup_lookup_paths_free_ LookupPaths paths = {}; | |
1614 | char **p; | |
1615 | int r; | |
1616 | ||
1617 | r = lookup_paths_init_from_scope(&paths, scope); | |
1618 | if (r < 0) | |
1619 | return r; | |
1620 | ||
1621 | STRV_FOREACH(p, paths.unit_path) { | |
1622 | _cleanup_free_ char *path = NULL, *tmp = NULL; | |
1623 | ||
1624 | if (isempty(root_dir)) | |
1625 | path = strappend(*p, "/default.target"); | |
1626 | else | |
1627 | path = strjoin(root_dir, "/", *p, "/default.target", NULL); | |
1628 | ||
1629 | if (!path) | |
1630 | return -ENOMEM; | |
1631 | ||
1632 | r = readlink_malloc(path, &tmp); | |
1633 | if (r == -ENOENT) | |
1634 | continue; | |
1635 | else if (r < 0) | |
1636 | return r; | |
1637 | ||
1638 | *name = strdup(path_get_file_name(tmp)); | |
1639 | if (!*name) | |
1640 | return -ENOMEM; | |
1641 | ||
1642 | return 0; | |
1643 | } | |
1644 | ||
1645 | return -ENOENT; | |
1646 | } | |
1647 | ||
83096483 LP |
1648 | UnitFileState unit_file_get_state( |
1649 | UnitFileScope scope, | |
1650 | const char *root_dir, | |
1651 | const char *name) { | |
1652 | ||
7fd1b19b | 1653 | _cleanup_lookup_paths_free_ LookupPaths paths = {}; |
83096483 | 1654 | UnitFileState state = _UNIT_FILE_STATE_INVALID; |
d9e5e694 | 1655 | char **i; |
7fd1b19b | 1656 | _cleanup_free_ char *path = NULL; |
83096483 LP |
1657 | int r; |
1658 | ||
1659 | assert(scope >= 0); | |
1660 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
1661 | assert(name); | |
1662 | ||
83096483 LP |
1663 | if (root_dir && scope != UNIT_FILE_SYSTEM) |
1664 | return -EINVAL; | |
1665 | ||
5f739699 | 1666 | if (!unit_name_is_valid(name, true)) |
83096483 LP |
1667 | return -EINVAL; |
1668 | ||
1669 | r = lookup_paths_init_from_scope(&paths, scope); | |
1670 | if (r < 0) | |
1671 | return r; | |
1672 | ||
1673 | STRV_FOREACH(i, paths.unit_path) { | |
1674 | struct stat st; | |
1675 | ||
1676 | free(path); | |
1677 | path = NULL; | |
1678 | ||
1679 | if (root_dir) | |
1680 | asprintf(&path, "%s/%s/%s", root_dir, *i, name); | |
1681 | else | |
1682 | asprintf(&path, "%s/%s", *i, name); | |
1683 | ||
d9e5e694 ZJS |
1684 | if (!path) |
1685 | return -ENOMEM; | |
83096483 | 1686 | |
67820a0c MT |
1687 | /* |
1688 | * Search for a unit file in our default paths, to | |
1689 | * be sure, that there are no broken symlinks. | |
1690 | */ | |
83096483 | 1691 | if (lstat(path, &st) < 0) { |
81006b8a | 1692 | r = -errno; |
67820a0c MT |
1693 | if (errno != ENOENT) |
1694 | return r; | |
83096483 | 1695 | |
67820a0c MT |
1696 | if (!unit_name_is_instance(name)) |
1697 | continue; | |
1698 | } else { | |
1699 | if (!S_ISREG(st.st_mode) && !S_ISLNK(st.st_mode)) | |
1700 | return -ENOENT; | |
1701 | ||
1702 | r = null_or_empty_path(path); | |
1703 | if (r < 0 && r != -ENOENT) | |
1704 | return r; | |
1705 | else if (r > 0) { | |
1706 | state = path_startswith(*i, "/run") ? | |
1707 | UNIT_FILE_MASKED_RUNTIME : UNIT_FILE_MASKED; | |
1708 | return state; | |
1709 | } | |
83096483 LP |
1710 | } |
1711 | ||
1712 | r = find_symlinks_in_scope(scope, root_dir, name, &state); | |
d9e5e694 ZJS |
1713 | if (r < 0) |
1714 | return r; | |
1715 | else if (r > 0) | |
1716 | return state; | |
83096483 LP |
1717 | |
1718 | r = unit_file_can_install(&paths, root_dir, path, true); | |
bcb161b0 | 1719 | if (r < 0 && errno != ENOENT) |
d9e5e694 ZJS |
1720 | return r; |
1721 | else if (r > 0) | |
1722 | return UNIT_FILE_DISABLED; | |
1723 | else if (r == 0) | |
1724 | return UNIT_FILE_STATIC; | |
83096483 LP |
1725 | } |
1726 | ||
83096483 LP |
1727 | return r < 0 ? r : state; |
1728 | } | |
1729 | ||
1730 | int unit_file_query_preset(UnitFileScope scope, const char *name) { | |
7fd1b19b | 1731 | _cleanup_strv_free_ char **files = NULL; |
d9e5e694 | 1732 | char **i; |
83096483 LP |
1733 | int r; |
1734 | ||
1735 | assert(scope >= 0); | |
1736 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
1737 | assert(name); | |
1738 | ||
1739 | if (scope == UNIT_FILE_SYSTEM) | |
7850b3b8 | 1740 | r = conf_files_list(&files, ".preset", NULL, |
a7480dba LP |
1741 | "/etc/systemd/system-preset", |
1742 | "/usr/local/lib/systemd/system-preset", | |
1743 | "/usr/lib/systemd/system-preset", | |
b4bdfefa | 1744 | #ifdef HAVE_SPLIT_USR |
a7480dba | 1745 | "/lib/systemd/system-preset", |
b4bdfefa | 1746 | #endif |
83096483 LP |
1747 | NULL); |
1748 | else if (scope == UNIT_FILE_GLOBAL) | |
7850b3b8 | 1749 | r = conf_files_list(&files, ".preset", NULL, |
a7480dba LP |
1750 | "/etc/systemd/user-preset", |
1751 | "/usr/local/lib/systemd/user-preset", | |
1752 | "/usr/lib/systemd/user-preset", | |
83096483 LP |
1753 | NULL); |
1754 | else | |
1755 | return 1; | |
1756 | ||
1757 | if (r < 0) | |
1758 | return r; | |
1759 | ||
1760 | STRV_FOREACH(i, files) { | |
7fd1b19b | 1761 | _cleanup_fclose_ FILE *f; |
83096483 LP |
1762 | |
1763 | f = fopen(*i, "re"); | |
1764 | if (!f) { | |
1765 | if (errno == ENOENT) | |
1766 | continue; | |
1767 | ||
d9e5e694 | 1768 | return -errno; |
83096483 LP |
1769 | } |
1770 | ||
1771 | for (;;) { | |
1772 | char line[LINE_MAX], *l; | |
1773 | ||
1774 | if (!fgets(line, sizeof(line), f)) | |
1775 | break; | |
1776 | ||
1777 | l = strstrip(line); | |
1778 | if (!*l) | |
1779 | continue; | |
1780 | ||
d3b6d0c2 | 1781 | if (strchr(COMMENTS "\n", *l)) |
83096483 LP |
1782 | continue; |
1783 | ||
1784 | if (first_word(l, "enable")) { | |
1785 | l += 6; | |
1786 | l += strspn(l, WHITESPACE); | |
1787 | ||
d9e5e694 ZJS |
1788 | if (fnmatch(l, name, FNM_NOESCAPE) == 0) |
1789 | return 1; | |
1790 | ||
83096483 LP |
1791 | } else if (first_word(l, "disable")) { |
1792 | l += 7; | |
1793 | l += strspn(l, WHITESPACE); | |
1794 | ||
d9e5e694 ZJS |
1795 | if (fnmatch(l, name, FNM_NOESCAPE) == 0) |
1796 | return 0; | |
1797 | ||
83096483 LP |
1798 | } else |
1799 | log_debug("Couldn't parse line '%s'", l); | |
1800 | } | |
83096483 LP |
1801 | } |
1802 | ||
1803 | /* Default is "enable" */ | |
d9e5e694 | 1804 | return 1; |
83096483 LP |
1805 | } |
1806 | ||
1807 | int unit_file_preset( | |
1808 | UnitFileScope scope, | |
1809 | bool runtime, | |
1810 | const char *root_dir, | |
1811 | char *files[], | |
1812 | bool force, | |
1813 | UnitFileChange **changes, | |
1814 | unsigned *n_changes) { | |
1815 | ||
7fd1b19b HH |
1816 | _cleanup_lookup_paths_free_ LookupPaths paths = {}; |
1817 | _cleanup_install_context_done_ InstallContext plus = {}, minus = {}; | |
d9e5e694 | 1818 | char **i; |
7fd1b19b HH |
1819 | _cleanup_free_ char *config_path = NULL; |
1820 | _cleanup_set_free_free_ Set *remove_symlinks_to = NULL; | |
83096483 LP |
1821 | int r, q; |
1822 | ||
1823 | assert(scope >= 0); | |
1824 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
1825 | ||
83096483 LP |
1826 | r = lookup_paths_init_from_scope(&paths, scope); |
1827 | if (r < 0) | |
1828 | return r; | |
1829 | ||
1830 | r = get_config_path(scope, runtime, root_dir, &config_path); | |
1831 | if (r < 0) | |
d9e5e694 | 1832 | return r; |
83096483 LP |
1833 | |
1834 | STRV_FOREACH(i, files) { | |
1835 | ||
d9e5e694 ZJS |
1836 | if (!unit_name_is_valid(*i, true)) |
1837 | return -EINVAL; | |
83096483 LP |
1838 | |
1839 | r = unit_file_query_preset(scope, *i); | |
1840 | if (r < 0) | |
d9e5e694 | 1841 | return r; |
83096483 LP |
1842 | |
1843 | if (r) | |
1844 | r = install_info_add_auto(&plus, *i); | |
1845 | else | |
1846 | r = install_info_add_auto(&minus, *i); | |
1847 | ||
1848 | if (r < 0) | |
d9e5e694 | 1849 | return r; |
83096483 LP |
1850 | } |
1851 | ||
d9e5e694 ZJS |
1852 | r = install_context_mark_for_removal(&minus, &paths, &remove_symlinks_to, |
1853 | config_path, root_dir); | |
83096483 | 1854 | |
d9e5e694 ZJS |
1855 | q = remove_marked_symlinks(remove_symlinks_to, config_path, |
1856 | changes, n_changes, files); | |
83096483 LP |
1857 | if (r == 0) |
1858 | r = q; | |
1859 | ||
729e3769 | 1860 | /* Returns number of symlinks that where supposed to be installed. */ |
d9e5e694 ZJS |
1861 | q = install_context_apply(&plus, &paths, config_path, root_dir, force, |
1862 | changes, n_changes); | |
83096483 LP |
1863 | if (r == 0) |
1864 | r = q; | |
1865 | ||
83096483 LP |
1866 | return r; |
1867 | } | |
1868 | ||
d9e5e694 ZJS |
1869 | static void unitfilelist_free(UnitFileList **f) { |
1870 | if (!*f) | |
1871 | return; | |
1872 | ||
1873 | free((*f)->path); | |
1874 | free(*f); | |
1875 | } | |
1876 | ||
83096483 LP |
1877 | int unit_file_get_list( |
1878 | UnitFileScope scope, | |
1879 | const char *root_dir, | |
1880 | Hashmap *h) { | |
1881 | ||
7fd1b19b | 1882 | _cleanup_lookup_paths_free_ LookupPaths paths = {}; |
d9e5e694 | 1883 | char **i; |
7fd1b19b HH |
1884 | _cleanup_free_ char *buf = NULL; |
1885 | _cleanup_closedir_ DIR *d = NULL; | |
83096483 LP |
1886 | int r; |
1887 | ||
1888 | assert(scope >= 0); | |
1889 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
1890 | assert(h); | |
1891 | ||
83096483 LP |
1892 | if (root_dir && scope != UNIT_FILE_SYSTEM) |
1893 | return -EINVAL; | |
1894 | ||
1895 | r = lookup_paths_init_from_scope(&paths, scope); | |
1896 | if (r < 0) | |
1897 | return r; | |
1898 | ||
1899 | STRV_FOREACH(i, paths.unit_path) { | |
83096483 LP |
1900 | const char *units_dir; |
1901 | ||
1902 | free(buf); | |
1903 | buf = NULL; | |
1904 | ||
1905 | if (root_dir) { | |
d9e5e694 ZJS |
1906 | if (asprintf(&buf, "%s/%s", root_dir, *i) < 0) |
1907 | return -ENOMEM; | |
1908 | ||
83096483 LP |
1909 | units_dir = buf; |
1910 | } else | |
1911 | units_dir = *i; | |
1912 | ||
1913 | if (d) | |
1914 | closedir(d); | |
1915 | ||
1916 | d = opendir(units_dir); | |
1917 | if (!d) { | |
1918 | if (errno == ENOENT) | |
1919 | continue; | |
1920 | ||
d9e5e694 | 1921 | return -errno; |
83096483 LP |
1922 | } |
1923 | ||
1924 | for (;;) { | |
7d5e9c0f LP |
1925 | struct dirent *de; |
1926 | union dirent_storage buffer; | |
d9e5e694 ZJS |
1927 | UnitFileList __attribute__((cleanup(unitfilelist_free))) |
1928 | *f = NULL; | |
83096483 | 1929 | |
7d5e9c0f | 1930 | r = readdir_r(d, &buffer.de, &de); |
d9e5e694 ZJS |
1931 | if (r != 0) |
1932 | return -r; | |
83096483 LP |
1933 | |
1934 | if (!de) | |
1935 | break; | |
1936 | ||
1937 | if (ignore_file(de->d_name)) | |
1938 | continue; | |
1939 | ||
5f739699 | 1940 | if (!unit_name_is_valid(de->d_name, true)) |
83096483 LP |
1941 | continue; |
1942 | ||
1943 | if (hashmap_get(h, de->d_name)) | |
1944 | continue; | |
1945 | ||
1946 | r = dirent_ensure_type(d, de); | |
1947 | if (r < 0) { | |
fb5ef067 | 1948 | if (r == -ENOENT) |
83096483 LP |
1949 | continue; |
1950 | ||
d9e5e694 | 1951 | return r; |
83096483 LP |
1952 | } |
1953 | ||
1954 | if (de->d_type != DT_LNK && de->d_type != DT_REG) | |
1955 | continue; | |
1956 | ||
1957 | f = new0(UnitFileList, 1); | |
d9e5e694 ZJS |
1958 | if (!f) |
1959 | return -ENOMEM; | |
83096483 LP |
1960 | |
1961 | f->path = path_make_absolute(de->d_name, units_dir); | |
d9e5e694 ZJS |
1962 | if (!f->path) |
1963 | return -ENOMEM; | |
83096483 LP |
1964 | |
1965 | r = null_or_empty_path(f->path); | |
d9e5e694 ZJS |
1966 | if (r < 0 && r != -ENOENT) |
1967 | return r; | |
1968 | else if (r > 0) { | |
83096483 LP |
1969 | f->state = |
1970 | path_startswith(*i, "/run") ? | |
1971 | UNIT_FILE_MASKED_RUNTIME : UNIT_FILE_MASKED; | |
1972 | goto found; | |
1973 | } | |
1974 | ||
1975 | r = find_symlinks_in_scope(scope, root_dir, de->d_name, &f->state); | |
d9e5e694 ZJS |
1976 | if (r < 0) |
1977 | return r; | |
1978 | else if (r > 0) { | |
b5b46d59 | 1979 | f->state = UNIT_FILE_ENABLED; |
83096483 | 1980 | goto found; |
b5b46d59 | 1981 | } |
83096483 LP |
1982 | |
1983 | r = unit_file_can_install(&paths, root_dir, f->path, true); | |
b5b46d59 LP |
1984 | if (r == -EINVAL || /* Invalid setting? */ |
1985 | r == -EBADMSG || /* Invalid format? */ | |
1986 | r == -ENOENT /* Included file not found? */) | |
1987 | f->state = UNIT_FILE_INVALID; | |
d9e5e694 ZJS |
1988 | else if (r < 0) |
1989 | return r; | |
1990 | else if (r > 0) | |
83096483 | 1991 | f->state = UNIT_FILE_DISABLED; |
b5b46d59 | 1992 | else |
83096483 | 1993 | f->state = UNIT_FILE_STATIC; |
83096483 LP |
1994 | |
1995 | found: | |
9eb977db | 1996 | r = hashmap_put(h, path_get_file_name(f->path), f); |
d9e5e694 ZJS |
1997 | if (r < 0) |
1998 | return r; | |
1999 | f = NULL; /* prevent cleanup */ | |
83096483 LP |
2000 | } |
2001 | } | |
2002 | ||
83096483 LP |
2003 | return r; |
2004 | } | |
2005 | ||
2006 | static const char* const unit_file_state_table[_UNIT_FILE_STATE_MAX] = { | |
2007 | [UNIT_FILE_ENABLED] = "enabled", | |
771faa9a | 2008 | [UNIT_FILE_ENABLED_RUNTIME] = "enabled-runtime", |
83096483 LP |
2009 | [UNIT_FILE_LINKED] = "linked", |
2010 | [UNIT_FILE_LINKED_RUNTIME] = "linked-runtime", | |
2011 | [UNIT_FILE_MASKED] = "masked", | |
2012 | [UNIT_FILE_MASKED_RUNTIME] = "masked-runtime", | |
2013 | [UNIT_FILE_STATIC] = "static", | |
b5b46d59 LP |
2014 | [UNIT_FILE_DISABLED] = "disabled", |
2015 | [UNIT_FILE_INVALID] = "invalid", | |
83096483 LP |
2016 | }; |
2017 | ||
2018 | DEFINE_STRING_TABLE_LOOKUP(unit_file_state, UnitFileState); | |
c0576cd6 LP |
2019 | |
2020 | static const char* const unit_file_change_type_table[_UNIT_FILE_CHANGE_TYPE_MAX] = { | |
2021 | [UNIT_FILE_SYMLINK] = "symlink", | |
2022 | [UNIT_FILE_UNLINK] = "unlink", | |
2023 | }; | |
2024 | ||
2025 | DEFINE_STRING_TABLE_LOOKUP(unit_file_change_type, UnitFileChangeType); |