]>
Commit | Line | Data |
---|---|---|
53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
83096483 LP |
2 | /*** |
3 | This file is part of systemd. | |
4 | ||
5 | Copyright 2011 Lennart Poettering | |
6 | ||
7 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
8 | under the terms of the GNU Lesser General Public License as published by |
9 | the Free Software Foundation; either version 2.1 of the License, or | |
83096483 LP |
10 | (at your option) any later version. |
11 | ||
12 | systemd is distributed in the hope that it will be useful, but | |
13 | WITHOUT ANY WARRANTY; without even the implied warranty <of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
5430f7f2 | 15 | Lesser General Public License for more details. |
83096483 | 16 | |
5430f7f2 | 17 | You should have received a copy of the GNU Lesser General Public License |
83096483 LP |
18 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
19 | ***/ | |
20 | ||
a8fbdf54 | 21 | #include <dirent.h> |
83096483 LP |
22 | #include <errno.h> |
23 | #include <fcntl.h> | |
83096483 | 24 | #include <fnmatch.h> |
a8fbdf54 TA |
25 | #include <limits.h> |
26 | #include <stddef.h> | |
27 | #include <stdio.h> | |
28 | #include <stdlib.h> | |
07630cea | 29 | #include <string.h> |
a8fbdf54 | 30 | #include <sys/stat.h> |
07630cea | 31 | #include <unistd.h> |
83096483 | 32 | |
b5efdb8a | 33 | #include "alloc-util.h" |
07630cea LP |
34 | #include "conf-files.h" |
35 | #include "conf-parser.h" | |
a0956174 | 36 | #include "dirent-util.h" |
a8fbdf54 | 37 | #include "extract-word.h" |
a0956174 | 38 | #include "fd-util.h" |
0ec0deaa | 39 | #include "fileio.h" |
f4f15635 | 40 | #include "fs-util.h" |
83096483 | 41 | #include "hashmap.h" |
07630cea | 42 | #include "install-printf.h" |
a0956174 | 43 | #include "install.h" |
a760db24 | 44 | #include "locale-util.h" |
a8fbdf54 TA |
45 | #include "log.h" |
46 | #include "macro.h" | |
07630cea | 47 | #include "mkdir.h" |
83096483 | 48 | #include "path-lookup.h" |
07630cea | 49 | #include "path-util.h" |
344ca755 | 50 | #include "rm-rf.h" |
07630cea LP |
51 | #include "set.h" |
52 | #include "special.h" | |
8fcde012 | 53 | #include "stat-util.h" |
8b43440b | 54 | #include "string-table.h" |
07630cea | 55 | #include "string-util.h" |
83096483 LP |
56 | #include "strv.h" |
57 | #include "unit-name.h" | |
83096483 | 58 | |
0ec0deaa LP |
59 | #define UNIT_FILE_FOLLOW_SYMLINK_MAX 64 |
60 | ||
61 | typedef enum SearchFlags { | |
62 | SEARCH_LOAD = 1, | |
63 | SEARCH_FOLLOW_CONFIG_SYMLINKS = 2, | |
64 | } SearchFlags; | |
65 | ||
83096483 | 66 | typedef struct { |
0ec0deaa LP |
67 | OrderedHashmap *will_process; |
68 | OrderedHashmap *have_processed; | |
83096483 LP |
69 | } InstallContext; |
70 | ||
8965d9f8 AC |
71 | typedef enum { |
72 | PRESET_UNKNOWN, | |
73 | PRESET_ENABLE, | |
74 | PRESET_DISABLE, | |
75 | } PresetAction; | |
76 | ||
77 | typedef struct { | |
78 | char *pattern; | |
79 | PresetAction action; | |
80 | } PresetRule; | |
81 | ||
82 | typedef struct { | |
83 | PresetRule *rules; | |
84 | size_t n_rules; | |
85 | } Presets; | |
86 | ||
7a7ec2bf ZJS |
87 | static inline bool unit_file_install_info_has_rules(UnitFileInstallInfo *i) { |
88 | assert(i); | |
89 | ||
90 | return !strv_isempty(i->aliases) || | |
91 | !strv_isempty(i->wanted_by) || | |
92 | !strv_isempty(i->required_by); | |
93 | } | |
94 | ||
95 | static inline bool unit_file_install_info_has_also(UnitFileInstallInfo *i) { | |
96 | assert(i); | |
97 | ||
98 | return !strv_isempty(i->also); | |
99 | } | |
100 | ||
8965d9f8 AC |
101 | static inline void presets_freep(Presets *p) { |
102 | size_t i; | |
103 | ||
104 | if (!p) | |
105 | return; | |
106 | ||
107 | for (i = 0; i < p->n_rules; i++) | |
108 | free(p->rules[i].pattern); | |
109 | ||
110 | free(p->rules); | |
111 | p->n_rules = 0; | |
112 | } | |
113 | ||
2c52204c LP |
114 | static int unit_file_lookup_state(UnitFileScope scope, const LookupPaths *paths, const char *name, UnitFileState *ret); |
115 | ||
8a993b61 ZJS |
116 | bool unit_type_may_alias(UnitType type) { |
117 | return IN_SET(type, | |
118 | UNIT_SERVICE, | |
119 | UNIT_SOCKET, | |
120 | UNIT_TARGET, | |
121 | UNIT_DEVICE, | |
122 | UNIT_TIMER, | |
123 | UNIT_PATH); | |
124 | } | |
125 | ||
ce99c68a ZJS |
126 | bool unit_type_may_template(UnitType type) { |
127 | return IN_SET(type, | |
128 | UNIT_SERVICE, | |
129 | UNIT_SOCKET, | |
130 | UNIT_TARGET, | |
131 | UNIT_TIMER, | |
132 | UNIT_PATH); | |
133 | } | |
134 | ||
64f9280e ZJS |
135 | static const char *unit_file_type_table[_UNIT_FILE_TYPE_MAX] = { |
136 | [UNIT_FILE_TYPE_REGULAR] = "regular", | |
137 | [UNIT_FILE_TYPE_SYMLINK] = "symlink", | |
138 | [UNIT_FILE_TYPE_MASKED] = "masked", | |
139 | }; | |
140 | ||
141 | DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(unit_file_type, UnitFileType); | |
142 | ||
32c0ed7b | 143 | static int in_search_path(const LookupPaths *p, const char *path) { |
8f294b45 | 144 | _cleanup_free_ char *parent = NULL; |
0ec0deaa | 145 | char **i; |
8f294b45 LP |
146 | |
147 | assert(path); | |
148 | ||
5f311f8c LP |
149 | parent = dirname_malloc(path); |
150 | if (!parent) | |
151 | return -ENOMEM; | |
8f294b45 | 152 | |
32c0ed7b | 153 | STRV_FOREACH(i, p->search_path) |
0ec0deaa LP |
154 | if (path_equal(parent, *i)) |
155 | return true; | |
156 | ||
157 | return false; | |
8f294b45 LP |
158 | } |
159 | ||
401017e0 | 160 | static const char* skip_root(const LookupPaths *p, const char *path) { |
8f9364f9 | 161 | char *e; |
401017e0 | 162 | |
8f9364f9 LP |
163 | assert(p); |
164 | assert(path); | |
401017e0 | 165 | |
8f9364f9 LP |
166 | if (!p->root_dir) |
167 | return path; | |
401017e0 | 168 | |
8f9364f9 LP |
169 | e = path_startswith(path, p->root_dir); |
170 | if (!e) | |
171 | return NULL; | |
172 | ||
173 | /* Make sure the returned path starts with a slash */ | |
174 | if (e[0] != '/') { | |
175 | if (e == path || e[-1] != '/') | |
176 | return NULL; | |
401017e0 | 177 | |
8f9364f9 | 178 | e--; |
401017e0 LP |
179 | } |
180 | ||
8f9364f9 | 181 | return e; |
401017e0 LP |
182 | } |
183 | ||
f4dc1e65 | 184 | static int path_is_generator(const LookupPaths *p, const char *path) { |
f4139308 LP |
185 | _cleanup_free_ char *parent = NULL; |
186 | ||
e1c5c2b0 | 187 | assert(p); |
f4139308 LP |
188 | assert(path); |
189 | ||
190 | parent = dirname_malloc(path); | |
191 | if (!parent) | |
192 | return -ENOMEM; | |
193 | ||
24737c29 ZJS |
194 | return path_equal_ptr(parent, p->generator) || |
195 | path_equal_ptr(parent, p->generator_early) || | |
196 | path_equal_ptr(parent, p->generator_late); | |
f4139308 LP |
197 | } |
198 | ||
e4fca67f LP |
199 | static int path_is_transient(const LookupPaths *p, const char *path) { |
200 | _cleanup_free_ char *parent = NULL; | |
201 | ||
202 | assert(p); | |
203 | assert(path); | |
204 | ||
205 | parent = dirname_malloc(path); | |
206 | if (!parent) | |
207 | return -ENOMEM; | |
208 | ||
24737c29 | 209 | return path_equal_ptr(parent, p->transient); |
e4fca67f LP |
210 | } |
211 | ||
344ca755 | 212 | static int path_is_control(const LookupPaths *p, const char *path) { |
e1c5c2b0 | 213 | _cleanup_free_ char *parent = NULL; |
0ec0deaa | 214 | |
e1c5c2b0 | 215 | assert(p); |
0ec0deaa LP |
216 | assert(path); |
217 | ||
344ca755 LP |
218 | parent = dirname_malloc(path); |
219 | if (!parent) | |
220 | return -ENOMEM; | |
0ec0deaa | 221 | |
24737c29 ZJS |
222 | return path_equal_ptr(parent, p->persistent_control) || |
223 | path_equal_ptr(parent, p->runtime_control); | |
344ca755 LP |
224 | } |
225 | ||
dfead90d | 226 | static int path_is_config(const LookupPaths *p, const char *path, bool check_parent) { |
344ca755 LP |
227 | _cleanup_free_ char *parent = NULL; |
228 | ||
229 | assert(p); | |
230 | assert(path); | |
231 | ||
d7604756 ZJS |
232 | /* Note that we do *not* have generic checks for /etc or /run in place, since with |
233 | * them we couldn't discern configuration from transient or generated units */ | |
0ec0deaa | 234 | |
dfead90d LP |
235 | if (check_parent) { |
236 | parent = dirname_malloc(path); | |
237 | if (!parent) | |
238 | return -ENOMEM; | |
239 | ||
240 | path = parent; | |
241 | } | |
0ec0deaa | 242 | |
dfead90d LP |
243 | return path_equal_ptr(path, p->persistent_config) || |
244 | path_equal_ptr(path, p->runtime_config); | |
0ec0deaa LP |
245 | } |
246 | ||
dfead90d | 247 | static int path_is_runtime(const LookupPaths *p, const char *path, bool check_parent) { |
385eb996 | 248 | _cleanup_free_ char *parent = NULL; |
401017e0 | 249 | const char *rpath; |
385eb996 LP |
250 | |
251 | assert(p); | |
252 | assert(path); | |
253 | ||
d7604756 ZJS |
254 | /* Everything in /run is considered runtime. On top of that we also add |
255 | * explicit checks for the various runtime directories, as safety net. */ | |
344ca755 | 256 | |
401017e0 LP |
257 | rpath = skip_root(p, path); |
258 | if (rpath && path_startswith(rpath, "/run")) | |
385eb996 LP |
259 | return true; |
260 | ||
dfead90d LP |
261 | if (check_parent) { |
262 | parent = dirname_malloc(path); | |
263 | if (!parent) | |
264 | return -ENOMEM; | |
385eb996 | 265 | |
dfead90d LP |
266 | path = parent; |
267 | } | |
268 | ||
269 | return path_equal_ptr(path, p->runtime_config) || | |
270 | path_equal_ptr(path, p->generator) || | |
271 | path_equal_ptr(path, p->generator_early) || | |
272 | path_equal_ptr(path, p->generator_late) || | |
273 | path_equal_ptr(path, p->transient) || | |
274 | path_equal_ptr(path, p->runtime_control); | |
344ca755 LP |
275 | } |
276 | ||
277 | static int path_is_vendor(const LookupPaths *p, const char *path) { | |
278 | const char *rpath; | |
279 | ||
280 | assert(p); | |
281 | assert(path); | |
282 | ||
283 | rpath = skip_root(p, path); | |
284 | if (!rpath) | |
285 | return 0; | |
286 | ||
287 | if (path_startswith(rpath, "/usr")) | |
288 | return true; | |
289 | ||
349cc4a5 | 290 | #if HAVE_SPLIT_USR |
344ca755 LP |
291 | if (path_startswith(rpath, "/lib")) |
292 | return true; | |
293 | #endif | |
294 | ||
295 | return path_equal(rpath, SYSTEM_DATA_UNIT_PATH); | |
385eb996 LP |
296 | } |
297 | ||
0ec0deaa LP |
298 | int unit_file_changes_add( |
299 | UnitFileChange **changes, | |
300 | unsigned *n_changes, | |
301 | UnitFileChangeType type, | |
302 | const char *path, | |
303 | const char *source) { | |
304 | ||
12bf0ae4 | 305 | _cleanup_free_ char *p = NULL, *s = NULL; |
0ec0deaa | 306 | UnitFileChange *c; |
0ec0deaa LP |
307 | |
308 | assert(path); | |
309 | assert(!changes == !n_changes); | |
310 | ||
311 | if (!changes) | |
312 | return 0; | |
313 | ||
314 | c = realloc(*changes, (*n_changes + 1) * sizeof(UnitFileChange)); | |
315 | if (!c) | |
316 | return -ENOMEM; | |
0ec0deaa | 317 | *changes = c; |
0ec0deaa | 318 | |
12bf0ae4 ZJS |
319 | p = strdup(path); |
320 | if (source) | |
321 | s = strdup(source); | |
0ec0deaa | 322 | |
12bf0ae4 ZJS |
323 | if (!p || (source && !s)) |
324 | return -ENOMEM; | |
0ec0deaa | 325 | |
12bf0ae4 ZJS |
326 | path_kill_slashes(p); |
327 | if (s) | |
328 | path_kill_slashes(s); | |
0ec0deaa | 329 | |
12bf0ae4 ZJS |
330 | c[*n_changes] = (UnitFileChange) { type, p, s }; |
331 | p = s = NULL; | |
332 | (*n_changes) ++; | |
0ec0deaa LP |
333 | return 0; |
334 | } | |
335 | ||
336 | void unit_file_changes_free(UnitFileChange *changes, unsigned n_changes) { | |
337 | unsigned i; | |
338 | ||
339 | assert(changes || n_changes == 0); | |
340 | ||
0ec0deaa LP |
341 | for (i = 0; i < n_changes; i++) { |
342 | free(changes[i].path); | |
343 | free(changes[i].source); | |
344 | } | |
345 | ||
346 | free(changes); | |
347 | } | |
348 | ||
af3d8113 ZJS |
349 | void unit_file_dump_changes(int r, const char *verb, const UnitFileChange *changes, unsigned n_changes, bool quiet) { |
350 | unsigned i; | |
351 | bool logged = false; | |
352 | ||
353 | assert(changes || n_changes == 0); | |
354 | /* If verb is not specified, errors are not allowed! */ | |
355 | assert(verb || r >= 0); | |
356 | ||
357 | for (i = 0; i < n_changes; i++) { | |
358 | assert(verb || changes[i].type >= 0); | |
359 | ||
360 | switch(changes[i].type) { | |
361 | case UNIT_FILE_SYMLINK: | |
362 | if (!quiet) | |
a760db24 ZJS |
363 | log_info("Created symlink %s %s %s.", |
364 | changes[i].path, | |
323b7dc9 | 365 | special_glyph(ARROW), |
a760db24 | 366 | changes[i].source); |
af3d8113 ZJS |
367 | break; |
368 | case UNIT_FILE_UNLINK: | |
369 | if (!quiet) | |
370 | log_info("Removed %s.", changes[i].path); | |
371 | break; | |
372 | case UNIT_FILE_IS_MASKED: | |
373 | if (!quiet) | |
374 | log_info("Unit %s is masked, ignoring.", changes[i].path); | |
375 | break; | |
893275df ZJS |
376 | case UNIT_FILE_IS_DANGLING: |
377 | if (!quiet) | |
378 | log_info("Unit %s is an alias to a unit that is not present, ignoring.", | |
379 | changes[i].path); | |
380 | break; | |
af3d8113 ZJS |
381 | case -EEXIST: |
382 | if (changes[i].source) | |
383 | log_error_errno(changes[i].type, | |
384 | "Failed to %s unit, file %s already exists and is a symlink to %s.", | |
385 | verb, changes[i].path, changes[i].source); | |
386 | else | |
387 | log_error_errno(changes[i].type, | |
388 | "Failed to %s unit, file %s already exists.", | |
389 | verb, changes[i].path); | |
390 | logged = true; | |
391 | break; | |
392 | case -ERFKILL: | |
393 | log_error_errno(changes[i].type, "Failed to %s unit, unit %s is masked.", | |
394 | verb, changes[i].path); | |
395 | logged = true; | |
396 | break; | |
397 | case -EADDRNOTAVAIL: | |
398 | log_error_errno(changes[i].type, "Failed to %s unit, unit %s is transient or generated.", | |
399 | verb, changes[i].path); | |
400 | logged = true; | |
401 | break; | |
402 | case -ELOOP: | |
403 | log_error_errno(changes[i].type, "Failed to %s unit, refusing to operate on linked unit file %s", | |
404 | verb, changes[i].path); | |
405 | logged = true; | |
406 | break; | |
637d6e5b LP |
407 | |
408 | case -ENOENT: | |
409 | log_error_errno(changes[i].type, "Failed to %s unit, unit %s does not exist.", verb, changes[i].path); | |
410 | logged = true; | |
411 | break; | |
412 | ||
af3d8113 ZJS |
413 | default: |
414 | assert(changes[i].type < 0); | |
415 | log_error_errno(changes[i].type, "Failed to %s unit, file %s: %m.", | |
416 | verb, changes[i].path); | |
417 | logged = true; | |
418 | } | |
419 | } | |
420 | ||
421 | if (r < 0 && !logged) | |
422 | log_error_errno(r, "Failed to %s: %m.", verb); | |
423 | } | |
424 | ||
25ea9277 ZJS |
425 | /** |
426 | * Checks if two paths or symlinks from wd are the same, when root is the root of the filesystem. | |
427 | * wc should be the full path in the host file system. | |
428 | */ | |
429 | static bool chroot_symlinks_same(const char *root, const char *wd, const char *a, const char *b) { | |
430 | assert(path_is_absolute(wd)); | |
431 | ||
432 | /* This will give incorrect results if the paths are relative and go outside | |
433 | * of the chroot. False negatives are possible. */ | |
434 | ||
ae9efab7 ZJS |
435 | if (!root) |
436 | root = "/"; | |
437 | ||
25ea9277 ZJS |
438 | a = strjoina(path_is_absolute(a) ? root : wd, "/", a); |
439 | b = strjoina(path_is_absolute(b) ? root : wd, "/", b); | |
e3f791a2 | 440 | return path_equal_or_files_same(a, b, 0); |
25ea9277 ZJS |
441 | } |
442 | ||
0ec0deaa | 443 | static int create_symlink( |
60bec8e4 | 444 | const LookupPaths *paths, |
0ec0deaa LP |
445 | const char *old_path, |
446 | const char *new_path, | |
447 | bool force, | |
448 | UnitFileChange **changes, | |
449 | unsigned *n_changes) { | |
450 | ||
25ea9277 | 451 | _cleanup_free_ char *dest = NULL, *dirname = NULL; |
60bec8e4 | 452 | const char *rp; |
0ec0deaa LP |
453 | int r; |
454 | ||
455 | assert(old_path); | |
456 | assert(new_path); | |
457 | ||
60bec8e4 ZJS |
458 | rp = skip_root(paths, old_path); |
459 | if (rp) | |
460 | old_path = rp; | |
461 | ||
0ec0deaa LP |
462 | /* Actually create a symlink, and remember that we did. Is |
463 | * smart enough to check if there's already a valid symlink in | |
85158303 ZJS |
464 | * place. |
465 | * | |
466 | * Returns 1 if a symlink was created or already exists and points to | |
467 | * the right place, or negative on error. | |
468 | */ | |
0ec0deaa LP |
469 | |
470 | mkdir_parents_label(new_path, 0755); | |
471 | ||
472 | if (symlink(old_path, new_path) >= 0) { | |
473 | unit_file_changes_add(changes, n_changes, UNIT_FILE_SYMLINK, new_path, old_path); | |
3de15214 | 474 | return 1; |
0ec0deaa LP |
475 | } |
476 | ||
af3d8113 ZJS |
477 | if (errno != EEXIST) { |
478 | unit_file_changes_add(changes, n_changes, -errno, new_path, NULL); | |
0ec0deaa | 479 | return -errno; |
af3d8113 | 480 | } |
0ec0deaa LP |
481 | |
482 | r = readlink_malloc(new_path, &dest); | |
7d782f26 ZJS |
483 | if (r < 0) { |
484 | /* translate EINVAL (non-symlink exists) to EEXIST */ | |
485 | if (r == -EINVAL) | |
486 | r = -EEXIST; | |
487 | ||
488 | unit_file_changes_add(changes, n_changes, r, new_path, NULL); | |
0ec0deaa | 489 | return r; |
7d782f26 | 490 | } |
0ec0deaa | 491 | |
25ea9277 ZJS |
492 | dirname = dirname_malloc(new_path); |
493 | if (!dirname) | |
494 | return -ENOMEM; | |
495 | ||
496 | if (chroot_symlinks_same(paths->root_dir, dirname, dest, old_path)) | |
85158303 | 497 | return 1; |
0ec0deaa | 498 | |
af3d8113 ZJS |
499 | if (!force) { |
500 | unit_file_changes_add(changes, n_changes, -EEXIST, new_path, dest); | |
0ec0deaa | 501 | return -EEXIST; |
af3d8113 | 502 | } |
0ec0deaa LP |
503 | |
504 | r = symlink_atomic(old_path, new_path); | |
7d782f26 ZJS |
505 | if (r < 0) { |
506 | unit_file_changes_add(changes, n_changes, r, new_path, NULL); | |
0ec0deaa | 507 | return r; |
7d782f26 | 508 | } |
0ec0deaa LP |
509 | |
510 | unit_file_changes_add(changes, n_changes, UNIT_FILE_UNLINK, new_path, NULL); | |
511 | unit_file_changes_add(changes, n_changes, UNIT_FILE_SYMLINK, new_path, old_path); | |
512 | ||
3de15214 | 513 | return 1; |
0ec0deaa LP |
514 | } |
515 | ||
83096483 LP |
516 | static int mark_symlink_for_removal( |
517 | Set **remove_symlinks_to, | |
518 | const char *p) { | |
519 | ||
520 | char *n; | |
521 | int r; | |
522 | ||
523 | assert(p); | |
524 | ||
d5099efc | 525 | r = set_ensure_allocated(remove_symlinks_to, &string_hash_ops); |
83096483 LP |
526 | if (r < 0) |
527 | return r; | |
528 | ||
529 | n = strdup(p); | |
530 | if (!n) | |
531 | return -ENOMEM; | |
532 | ||
533 | path_kill_slashes(n); | |
534 | ||
ef42202a | 535 | r = set_consume(*remove_symlinks_to, n); |
d25e100b LP |
536 | if (r == -EEXIST) |
537 | return 0; | |
ef42202a | 538 | if (r < 0) |
d25e100b | 539 | return r; |
83096483 | 540 | |
0ec0deaa | 541 | return 1; |
83096483 LP |
542 | } |
543 | ||
544 | static int remove_marked_symlinks_fd( | |
545 | Set *remove_symlinks_to, | |
546 | int fd, | |
547 | const char *path, | |
548 | const char *config_path, | |
401017e0 | 549 | const LookupPaths *lp, |
3b3557c4 | 550 | bool dry_run, |
0ec0deaa | 551 | bool *restart, |
83096483 | 552 | UnitFileChange **changes, |
0ec0deaa | 553 | unsigned *n_changes) { |
83096483 | 554 | |
7fd1b19b | 555 | _cleanup_closedir_ DIR *d = NULL; |
d25e100b | 556 | struct dirent *de; |
bcafe923 | 557 | int r = 0; |
83096483 LP |
558 | |
559 | assert(remove_symlinks_to); | |
560 | assert(fd >= 0); | |
561 | assert(path); | |
562 | assert(config_path); | |
401017e0 | 563 | assert(lp); |
0ec0deaa | 564 | assert(restart); |
83096483 LP |
565 | |
566 | d = fdopendir(fd); | |
567 | if (!d) { | |
03e334a1 | 568 | safe_close(fd); |
83096483 LP |
569 | return -errno; |
570 | } | |
571 | ||
572 | rewinddir(d); | |
573 | ||
d25e100b | 574 | FOREACH_DIRENT(de, d, return -errno) { |
83096483 LP |
575 | |
576 | dirent_ensure_type(d, de); | |
577 | ||
578 | if (de->d_type == DT_DIR) { | |
7fd1b19b | 579 | _cleanup_free_ char *p = NULL; |
d25e100b | 580 | int nfd, q; |
83096483 LP |
581 | |
582 | nfd = openat(fd, de->d_name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW); | |
583 | if (nfd < 0) { | |
584 | if (errno == ENOENT) | |
585 | continue; | |
586 | ||
587 | if (r == 0) | |
588 | r = -errno; | |
589 | continue; | |
590 | } | |
591 | ||
592 | p = path_make_absolute(de->d_name, path); | |
593 | if (!p) { | |
03e334a1 | 594 | safe_close(nfd); |
d9e5e694 | 595 | return -ENOMEM; |
83096483 LP |
596 | } |
597 | ||
598 | /* This will close nfd, regardless whether it succeeds or not */ | |
3b3557c4 | 599 | q = remove_marked_symlinks_fd(remove_symlinks_to, nfd, p, config_path, lp, dry_run, restart, changes, n_changes); |
bcafe923 | 600 | if (q < 0 && r == 0) |
83096483 LP |
601 | r = q; |
602 | ||
603 | } else if (de->d_type == DT_LNK) { | |
7fd1b19b | 604 | _cleanup_free_ char *p = NULL, *dest = NULL; |
401017e0 | 605 | const char *rp; |
83096483 | 606 | bool found; |
0ec0deaa | 607 | int q; |
83096483 | 608 | |
7410616c | 609 | if (!unit_name_is_valid(de->d_name, UNIT_NAME_ANY)) |
bcafe923 LP |
610 | continue; |
611 | ||
83096483 | 612 | p = path_make_absolute(de->d_name, path); |
d9e5e694 ZJS |
613 | if (!p) |
614 | return -ENOMEM; | |
af3d8113 | 615 | path_kill_slashes(p); |
83096483 | 616 | |
0ec0deaa | 617 | q = readlink_malloc(p, &dest); |
401017e0 LP |
618 | if (q == -ENOENT) |
619 | continue; | |
83096483 | 620 | if (q < 0) { |
83096483 LP |
621 | if (r == 0) |
622 | r = q; | |
623 | continue; | |
624 | } | |
625 | ||
401017e0 LP |
626 | /* We remove all links pointing to a file or path that is marked, as well as all files sharing |
627 | * the same name as a file that is marked. */ | |
0ec0deaa | 628 | |
596fc263 | 629 | found = set_contains(remove_symlinks_to, dest) || |
0ec0deaa LP |
630 | set_contains(remove_symlinks_to, basename(dest)) || |
631 | set_contains(remove_symlinks_to, de->d_name); | |
83096483 | 632 | |
1dacfd2a LP |
633 | if (!found) |
634 | continue; | |
83096483 | 635 | |
3b3557c4 JS |
636 | if (!dry_run) { |
637 | if (unlinkat(fd, de->d_name, 0) < 0 && errno != ENOENT) { | |
638 | if (r == 0) | |
639 | r = -errno; | |
640 | unit_file_changes_add(changes, n_changes, -errno, p, NULL); | |
641 | continue; | |
642 | } | |
bcafe923 | 643 | |
3b3557c4 JS |
644 | (void) rmdir_parents(p, config_path); |
645 | } | |
83096483 | 646 | |
0ec0deaa | 647 | unit_file_changes_add(changes, n_changes, UNIT_FILE_UNLINK, p, NULL); |
1dacfd2a | 648 | |
12bf0ae4 ZJS |
649 | /* Now, remember the full path (but with the root prefix removed) of |
650 | * the symlink we just removed, and remove any symlinks to it, too. */ | |
401017e0 LP |
651 | |
652 | rp = skip_root(lp, p); | |
653 | q = mark_symlink_for_removal(&remove_symlinks_to, rp ?: p); | |
0ec0deaa LP |
654 | if (q < 0) |
655 | return q; | |
3b3557c4 | 656 | if (q > 0 && !dry_run) |
0ec0deaa | 657 | *restart = true; |
83096483 LP |
658 | } |
659 | } | |
660 | ||
83096483 LP |
661 | return r; |
662 | } | |
663 | ||
664 | static int remove_marked_symlinks( | |
665 | Set *remove_symlinks_to, | |
666 | const char *config_path, | |
401017e0 | 667 | const LookupPaths *lp, |
3b3557c4 | 668 | bool dry_run, |
83096483 | 669 | UnitFileChange **changes, |
0ec0deaa | 670 | unsigned *n_changes) { |
83096483 | 671 | |
da39f6a6 | 672 | _cleanup_close_ int fd = -1; |
0ec0deaa | 673 | bool restart; |
d25e100b | 674 | int r = 0; |
83096483 LP |
675 | |
676 | assert(config_path); | |
401017e0 | 677 | assert(lp); |
83096483 LP |
678 | |
679 | if (set_size(remove_symlinks_to) <= 0) | |
680 | return 0; | |
681 | ||
67852d08 | 682 | fd = open(config_path, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC); |
83096483 | 683 | if (fd < 0) |
32d9493e | 684 | return errno == ENOENT ? 0 : -errno; |
83096483 LP |
685 | |
686 | do { | |
687 | int q, cfd; | |
0ec0deaa | 688 | restart = false; |
83096483 | 689 | |
ead34950 | 690 | cfd = fcntl(fd, F_DUPFD_CLOEXEC, 3); |
d25e100b LP |
691 | if (cfd < 0) |
692 | return -errno; | |
83096483 LP |
693 | |
694 | /* This takes possession of cfd and closes it */ | |
3b3557c4 | 695 | q = remove_marked_symlinks_fd(remove_symlinks_to, cfd, config_path, config_path, lp, dry_run, &restart, changes, n_changes); |
83096483 LP |
696 | if (r == 0) |
697 | r = q; | |
0ec0deaa | 698 | } while (restart); |
83096483 | 699 | |
83096483 LP |
700 | return r; |
701 | } | |
702 | ||
5cd8ae31 ZJS |
703 | static bool is_symlink_with_known_name(const UnitFileInstallInfo *i, const char *name) { |
704 | int r; | |
705 | ||
706 | if (streq(name, i->name)) | |
707 | return true; | |
708 | ||
709 | if (strv_contains(i->aliases, name)) | |
710 | return true; | |
711 | ||
712 | /* Look for template symlink matching DefaultInstance */ | |
713 | if (i->default_instance && unit_name_is_valid(i->name, UNIT_NAME_TEMPLATE)) { | |
714 | _cleanup_free_ char *s = NULL; | |
715 | ||
716 | r = unit_name_replace_instance(i->name, i->default_instance, &s); | |
717 | if (r < 0) { | |
718 | if (r != -EINVAL) | |
719 | return r; | |
720 | ||
721 | } else if (streq(name, s)) | |
722 | return true; | |
723 | } | |
724 | ||
725 | return false; | |
726 | } | |
727 | ||
83096483 | 728 | static int find_symlinks_fd( |
0ec0deaa | 729 | const char *root_dir, |
5cd8ae31 | 730 | UnitFileInstallInfo *i, |
d9b4b48f | 731 | bool match_aliases, |
83096483 LP |
732 | int fd, |
733 | const char *path, | |
734 | const char *config_path, | |
735 | bool *same_name_link) { | |
736 | ||
7fd1b19b | 737 | _cleanup_closedir_ DIR *d = NULL; |
d25e100b LP |
738 | struct dirent *de; |
739 | int r = 0; | |
83096483 | 740 | |
5cd8ae31 | 741 | assert(i); |
83096483 LP |
742 | assert(fd >= 0); |
743 | assert(path); | |
744 | assert(config_path); | |
745 | assert(same_name_link); | |
746 | ||
747 | d = fdopendir(fd); | |
748 | if (!d) { | |
03e334a1 | 749 | safe_close(fd); |
83096483 LP |
750 | return -errno; |
751 | } | |
752 | ||
d25e100b | 753 | FOREACH_DIRENT(de, d, return -errno) { |
83096483 LP |
754 | |
755 | dirent_ensure_type(d, de); | |
756 | ||
757 | if (de->d_type == DT_DIR) { | |
7fd1b19b | 758 | _cleanup_free_ char *p = NULL; |
d25e100b | 759 | int nfd, q; |
83096483 LP |
760 | |
761 | nfd = openat(fd, de->d_name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW); | |
762 | if (nfd < 0) { | |
763 | if (errno == ENOENT) | |
764 | continue; | |
765 | ||
766 | if (r == 0) | |
767 | r = -errno; | |
768 | continue; | |
769 | } | |
770 | ||
771 | p = path_make_absolute(de->d_name, path); | |
772 | if (!p) { | |
03e334a1 | 773 | safe_close(nfd); |
ea55addc | 774 | return -ENOMEM; |
83096483 LP |
775 | } |
776 | ||
777 | /* This will close nfd, regardless whether it succeeds or not */ | |
d9b4b48f | 778 | q = find_symlinks_fd(root_dir, i, match_aliases, nfd, |
5cd8ae31 | 779 | p, config_path, same_name_link); |
ea55addc ZJS |
780 | if (q > 0) |
781 | return 1; | |
83096483 LP |
782 | if (r == 0) |
783 | r = q; | |
784 | ||
785 | } else if (de->d_type == DT_LNK) { | |
7fd1b19b | 786 | _cleanup_free_ char *p = NULL, *dest = NULL; |
83096483 LP |
787 | bool found_path, found_dest, b = false; |
788 | int q; | |
789 | ||
790 | /* Acquire symlink name */ | |
791 | p = path_make_absolute(de->d_name, path); | |
ea55addc ZJS |
792 | if (!p) |
793 | return -ENOMEM; | |
83096483 LP |
794 | |
795 | /* Acquire symlink destination */ | |
0ec0deaa | 796 | q = readlink_malloc(p, &dest); |
d25e100b LP |
797 | if (q == -ENOENT) |
798 | continue; | |
83096483 | 799 | if (q < 0) { |
83096483 LP |
800 | if (r == 0) |
801 | r = q; | |
802 | continue; | |
803 | } | |
804 | ||
0ec0deaa LP |
805 | /* Make absolute */ |
806 | if (!path_is_absolute(dest)) { | |
807 | char *x; | |
808 | ||
809 | x = prefix_root(root_dir, dest); | |
810 | if (!x) | |
811 | return -ENOMEM; | |
812 | ||
813 | free(dest); | |
814 | dest = x; | |
815 | } | |
816 | ||
83096483 LP |
817 | /* Check if the symlink itself matches what we |
818 | * are looking for */ | |
5cd8ae31 ZJS |
819 | if (path_is_absolute(i->name)) |
820 | found_path = path_equal(p, i->name); | |
83096483 | 821 | else |
5cd8ae31 | 822 | found_path = streq(de->d_name, i->name); |
83096483 LP |
823 | |
824 | /* Check if what the symlink points to | |
825 | * matches what we are looking for */ | |
5cd8ae31 ZJS |
826 | if (path_is_absolute(i->name)) |
827 | found_dest = path_equal(dest, i->name); | |
83096483 | 828 | else |
5cd8ae31 | 829 | found_dest = streq(basename(dest), i->name); |
83096483 | 830 | |
83096483 | 831 | if (found_path && found_dest) { |
7fd1b19b | 832 | _cleanup_free_ char *t = NULL; |
83096483 LP |
833 | |
834 | /* Filter out same name links in the main | |
835 | * config path */ | |
5cd8ae31 | 836 | t = path_make_absolute(i->name, config_path); |
ea55addc ZJS |
837 | if (!t) |
838 | return -ENOMEM; | |
83096483 LP |
839 | |
840 | b = path_equal(t, p); | |
83096483 LP |
841 | } |
842 | ||
83096483 LP |
843 | if (b) |
844 | *same_name_link = true; | |
5cd8ae31 | 845 | else if (found_path || found_dest) { |
d9b4b48f ZJS |
846 | if (!match_aliases) |
847 | return 1; | |
848 | ||
5cd8ae31 ZJS |
849 | /* Check if symlink name is in the set of names used by [Install] */ |
850 | q = is_symlink_with_known_name(i, de->d_name); | |
5cd8ae31 ZJS |
851 | if (q < 0) |
852 | return q; | |
853 | if (q > 0) | |
854 | return 1; | |
855 | } | |
83096483 LP |
856 | } |
857 | } | |
d25e100b LP |
858 | |
859 | return r; | |
83096483 LP |
860 | } |
861 | ||
862 | static int find_symlinks( | |
0ec0deaa | 863 | const char *root_dir, |
5cd8ae31 | 864 | UnitFileInstallInfo *i, |
d9b4b48f | 865 | bool match_name, |
83096483 LP |
866 | const char *config_path, |
867 | bool *same_name_link) { | |
868 | ||
869 | int fd; | |
870 | ||
5cd8ae31 | 871 | assert(i); |
83096483 LP |
872 | assert(config_path); |
873 | assert(same_name_link); | |
874 | ||
1cd1dab9 | 875 | fd = open(config_path, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC); |
d5891fda | 876 | if (fd < 0) { |
a1feacf7 | 877 | if (IN_SET(errno, ENOENT, ENOTDIR, EACCES)) |
d5891fda | 878 | return 0; |
83096483 | 879 | return -errno; |
d5891fda | 880 | } |
83096483 LP |
881 | |
882 | /* This takes possession of fd and closes it */ | |
d9b4b48f | 883 | return find_symlinks_fd(root_dir, i, match_name, fd, |
5cd8ae31 | 884 | config_path, config_path, same_name_link); |
83096483 LP |
885 | } |
886 | ||
887 | static int find_symlinks_in_scope( | |
d2561cfd | 888 | UnitFileScope scope, |
e1c5c2b0 | 889 | const LookupPaths *paths, |
5cd8ae31 | 890 | UnitFileInstallInfo *i, |
d9b4b48f | 891 | bool match_name, |
83096483 LP |
892 | UnitFileState *state) { |
893 | ||
dfead90d LP |
894 | bool same_name_link_runtime = false, same_name_link_config = false; |
895 | bool enabled_in_runtime = false, enabled_at_all = false; | |
896 | char **p; | |
0ec0deaa | 897 | int r; |
83096483 | 898 | |
e1c5c2b0 | 899 | assert(paths); |
5cd8ae31 | 900 | assert(i); |
83096483 | 901 | |
dfead90d LP |
902 | STRV_FOREACH(p, paths->search_path) { |
903 | bool same_name_link = false; | |
904 | ||
d9b4b48f | 905 | r = find_symlinks(paths->root_dir, i, match_name, *p, &same_name_link); |
dfead90d LP |
906 | if (r < 0) |
907 | return r; | |
908 | if (r > 0) { | |
909 | /* We found symlinks in this dir? Yay! Let's see where precisely it is enabled. */ | |
910 | ||
911 | r = path_is_config(paths, *p, false); | |
912 | if (r < 0) | |
913 | return r; | |
914 | if (r > 0) { | |
915 | /* This is the best outcome, let's return it immediately. */ | |
916 | *state = UNIT_FILE_ENABLED; | |
917 | return 1; | |
918 | } | |
919 | ||
d2561cfd ZJS |
920 | /* look for globally enablement of user units */ |
921 | if (scope == UNIT_FILE_USER && path_is_user_config_dir(*p)) { | |
922 | *state = UNIT_FILE_ENABLED; | |
923 | return 1; | |
924 | } | |
925 | ||
dfead90d LP |
926 | r = path_is_runtime(paths, *p, false); |
927 | if (r < 0) | |
928 | return r; | |
929 | if (r > 0) | |
930 | enabled_in_runtime = true; | |
931 | else | |
932 | enabled_at_all = true; | |
933 | ||
934 | } else if (same_name_link) { | |
935 | ||
936 | r = path_is_config(paths, *p, false); | |
937 | if (r < 0) | |
938 | return r; | |
939 | if (r > 0) | |
940 | same_name_link_config = true; | |
941 | else { | |
942 | r = path_is_runtime(paths, *p, false); | |
943 | if (r < 0) | |
944 | return r; | |
945 | if (r > 0) | |
946 | same_name_link_runtime = true; | |
947 | } | |
948 | } | |
83096483 LP |
949 | } |
950 | ||
dfead90d | 951 | if (enabled_in_runtime) { |
0ec0deaa | 952 | *state = UNIT_FILE_ENABLED_RUNTIME; |
dfead90d LP |
953 | return 1; |
954 | } | |
955 | ||
956 | /* Here's a special rule: if the unit we are looking for is an instance, and it symlinked in the search path | |
957 | * outside of runtime and configuration directory, then we consider it statically enabled. Note we do that only | |
958 | * for instance, not for regular names, as those are merely aliases, while instances explicitly instantiate | |
959 | * something, and hence are a much stronger concept. */ | |
5cd8ae31 | 960 | if (enabled_at_all && unit_name_is_valid(i->name, UNIT_NAME_INSTANCE)) { |
dfead90d LP |
961 | *state = UNIT_FILE_STATIC; |
962 | return 1; | |
83096483 LP |
963 | } |
964 | ||
965 | /* Hmm, we didn't find it, but maybe we found the same name | |
966 | * link? */ | |
dfead90d | 967 | if (same_name_link_config) { |
0ec0deaa LP |
968 | *state = UNIT_FILE_LINKED; |
969 | return 1; | |
970 | } | |
83096483 LP |
971 | if (same_name_link_runtime) { |
972 | *state = UNIT_FILE_LINKED_RUNTIME; | |
973 | return 1; | |
83096483 LP |
974 | } |
975 | ||
976 | return 0; | |
977 | } | |
978 | ||
0ec0deaa | 979 | static void install_info_free(UnitFileInstallInfo *i) { |
83096483 | 980 | |
0ec0deaa LP |
981 | if (!i) |
982 | return; | |
83096483 | 983 | |
0ec0deaa LP |
984 | free(i->name); |
985 | free(i->path); | |
986 | strv_free(i->aliases); | |
987 | strv_free(i->wanted_by); | |
988 | strv_free(i->required_by); | |
989 | strv_free(i->also); | |
990 | free(i->default_instance); | |
991 | free(i->symlink_target); | |
992 | free(i); | |
993 | } | |
83096483 | 994 | |
0ec0deaa LP |
995 | static OrderedHashmap* install_info_hashmap_free(OrderedHashmap *m) { |
996 | UnitFileInstallInfo *i; | |
83096483 | 997 | |
0ec0deaa LP |
998 | if (!m) |
999 | return NULL; | |
83096483 | 1000 | |
0ec0deaa LP |
1001 | while ((i = ordered_hashmap_steal_first(m))) |
1002 | install_info_free(i); | |
83096483 | 1003 | |
0ec0deaa LP |
1004 | return ordered_hashmap_free(m); |
1005 | } | |
83096483 | 1006 | |
0ec0deaa LP |
1007 | static void install_context_done(InstallContext *c) { |
1008 | assert(c); | |
83096483 | 1009 | |
0ec0deaa LP |
1010 | c->will_process = install_info_hashmap_free(c->will_process); |
1011 | c->have_processed = install_info_hashmap_free(c->have_processed); | |
1012 | } | |
83096483 | 1013 | |
0ec0deaa LP |
1014 | static UnitFileInstallInfo *install_info_find(InstallContext *c, const char *name) { |
1015 | UnitFileInstallInfo *i; | |
83096483 | 1016 | |
0ec0deaa LP |
1017 | i = ordered_hashmap_get(c->have_processed, name); |
1018 | if (i) | |
1019 | return i; | |
83096483 | 1020 | |
0ec0deaa | 1021 | return ordered_hashmap_get(c->will_process, name); |
83096483 LP |
1022 | } |
1023 | ||
af3d8113 ZJS |
1024 | static int install_info_may_process( |
1025 | UnitFileInstallInfo *i, | |
1026 | const LookupPaths *paths, | |
1027 | UnitFileChange **changes, | |
1028 | unsigned *n_changes) { | |
76adb5b8 LP |
1029 | assert(i); |
1030 | assert(paths); | |
1031 | ||
047d91f9 ZJS |
1032 | /* Checks whether the loaded unit file is one we should process, or is masked, |
1033 | * transient or generated and thus not subject to enable/disable operations. */ | |
76adb5b8 | 1034 | |
af3d8113 ZJS |
1035 | if (i->type == UNIT_FILE_TYPE_MASKED) { |
1036 | unit_file_changes_add(changes, n_changes, -ERFKILL, i->path, NULL); | |
76ec966f | 1037 | return -ERFKILL; |
af3d8113 ZJS |
1038 | } |
1039 | if (path_is_generator(paths, i->path) || | |
1040 | path_is_transient(paths, i->path)) { | |
1041 | unit_file_changes_add(changes, n_changes, -EADDRNOTAVAIL, i->path, NULL); | |
76adb5b8 | 1042 | return -EADDRNOTAVAIL; |
af3d8113 | 1043 | } |
76adb5b8 LP |
1044 | |
1045 | return 0; | |
1046 | } | |
1047 | ||
ff56349d ZJS |
1048 | /** |
1049 | * Adds a new UnitFileInstallInfo entry under name in the InstallContext.will_process | |
1050 | * hashmap, or retrieves the existing one if already present. | |
19539807 ZJS |
1051 | * |
1052 | * Returns negative on error, 0 if the unit was already known, 1 otherwise. | |
ff56349d | 1053 | */ |
83096483 LP |
1054 | static int install_info_add( |
1055 | InstallContext *c, | |
1056 | const char *name, | |
0ec0deaa | 1057 | const char *path, |
19539807 | 1058 | bool auxiliary, |
0ec0deaa LP |
1059 | UnitFileInstallInfo **ret) { |
1060 | ||
cab6235f | 1061 | UnitFileInstallInfo *i = NULL; |
83096483 LP |
1062 | int r; |
1063 | ||
1064 | assert(c); | |
1065 | assert(name || path); | |
1066 | ||
1067 | if (!name) | |
2b6bf07d | 1068 | name = basename(path); |
83096483 | 1069 | |
7410616c | 1070 | if (!unit_name_is_valid(name, UNIT_NAME_ANY)) |
83096483 LP |
1071 | return -EINVAL; |
1072 | ||
0ec0deaa LP |
1073 | i = install_info_find(c, name); |
1074 | if (i) { | |
19539807 ZJS |
1075 | i->auxiliary = i->auxiliary && auxiliary; |
1076 | ||
0ec0deaa LP |
1077 | if (ret) |
1078 | *ret = i; | |
83096483 | 1079 | return 0; |
0ec0deaa | 1080 | } |
83096483 | 1081 | |
0ec0deaa | 1082 | r = ordered_hashmap_ensure_allocated(&c->will_process, &string_hash_ops); |
83096483 LP |
1083 | if (r < 0) |
1084 | return r; | |
1085 | ||
cab6235f | 1086 | i = new0(UnitFileInstallInfo, 1); |
83096483 LP |
1087 | if (!i) |
1088 | return -ENOMEM; | |
0ec0deaa | 1089 | i->type = _UNIT_FILE_TYPE_INVALID; |
19539807 | 1090 | i->auxiliary = auxiliary; |
83096483 LP |
1091 | |
1092 | i->name = strdup(name); | |
1093 | if (!i->name) { | |
1094 | r = -ENOMEM; | |
1095 | goto fail; | |
1096 | } | |
1097 | ||
1098 | if (path) { | |
1099 | i->path = strdup(path); | |
1100 | if (!i->path) { | |
1101 | r = -ENOMEM; | |
1102 | goto fail; | |
1103 | } | |
1104 | } | |
1105 | ||
0ec0deaa | 1106 | r = ordered_hashmap_put(c->will_process, i->name, i); |
83096483 LP |
1107 | if (r < 0) |
1108 | goto fail; | |
1109 | ||
0ec0deaa LP |
1110 | if (ret) |
1111 | *ret = i; | |
1112 | ||
19539807 | 1113 | return 1; |
83096483 LP |
1114 | |
1115 | fail: | |
d25e100b | 1116 | install_info_free(i); |
83096483 LP |
1117 | return r; |
1118 | } | |
1119 | ||
a7724589 ZJS |
1120 | static int config_parse_alias( |
1121 | const char *unit, | |
1122 | const char *filename, | |
1123 | unsigned line, | |
1124 | const char *section, | |
1125 | unsigned section_line, | |
1126 | const char *lvalue, | |
1127 | int ltype, | |
1128 | const char *rvalue, | |
1129 | void *data, | |
1130 | void *userdata) { | |
1131 | ||
a7724589 ZJS |
1132 | UnitType type; |
1133 | ||
142468d8 | 1134 | assert(unit); |
a7724589 ZJS |
1135 | assert(filename); |
1136 | assert(lvalue); | |
1137 | assert(rvalue); | |
1138 | ||
142468d8 | 1139 | type = unit_name_to_type(unit); |
a7724589 ZJS |
1140 | if (!unit_type_may_alias(type)) |
1141 | return log_syntax(unit, LOG_WARNING, filename, line, 0, | |
3b8769bd | 1142 | "Alias= is not allowed for %s units, ignoring.", |
a7724589 ZJS |
1143 | unit_type_to_string(type)); |
1144 | ||
1145 | return config_parse_strv(unit, filename, line, section, section_line, | |
1146 | lvalue, ltype, rvalue, data, userdata); | |
1147 | } | |
1148 | ||
d54c4993 LP |
1149 | static int config_parse_also( |
1150 | const char *unit, | |
1151 | const char *filename, | |
1152 | unsigned line, | |
1153 | const char *section, | |
1154 | unsigned section_line, | |
1155 | const char *lvalue, | |
1156 | int ltype, | |
1157 | const char *rvalue, | |
1158 | void *data, | |
1159 | void *userdata) { | |
83096483 | 1160 | |
19539807 | 1161 | UnitFileInstallInfo *info = userdata, *alsoinfo = NULL; |
0ec0deaa LP |
1162 | InstallContext *c = data; |
1163 | int r; | |
83096483 | 1164 | |
142468d8 | 1165 | assert(unit); |
83096483 LP |
1166 | assert(filename); |
1167 | assert(lvalue); | |
1168 | assert(rvalue); | |
1169 | ||
0ec0deaa | 1170 | for (;;) { |
a6612e65 | 1171 | _cleanup_free_ char *word = NULL, *printed = NULL; |
03da6513 | 1172 | |
0ec0deaa LP |
1173 | r = extract_first_word(&rvalue, &word, NULL, 0); |
1174 | if (r < 0) | |
1175 | return r; | |
03da6513 SS |
1176 | if (r == 0) |
1177 | break; | |
83096483 | 1178 | |
a6612e65 | 1179 | r = install_full_printf(info, word, &printed); |
d9e5e694 | 1180 | if (r < 0) |
83096483 | 1181 | return r; |
aedd4012 | 1182 | |
a6612e65 ZJS |
1183 | if (!unit_name_is_valid(printed, UNIT_NAME_ANY)) |
1184 | return -EINVAL; | |
1185 | ||
1186 | r = install_info_add(c, printed, NULL, true, &alsoinfo); | |
d9e5e694 | 1187 | if (r < 0) |
83096483 | 1188 | return r; |
aedd4012 | 1189 | |
a6612e65 | 1190 | r = strv_push(&info->also, printed); |
aedd4012 JS |
1191 | if (r < 0) |
1192 | return r; | |
0ec0deaa | 1193 | |
a6612e65 | 1194 | printed = NULL; |
83096483 LP |
1195 | } |
1196 | ||
1197 | return 0; | |
1198 | } | |
1199 | ||
d54c4993 LP |
1200 | static int config_parse_default_instance( |
1201 | const char *unit, | |
1202 | const char *filename, | |
1203 | unsigned line, | |
1204 | const char *section, | |
1205 | unsigned section_line, | |
1206 | const char *lvalue, | |
1207 | int ltype, | |
1208 | const char *rvalue, | |
1209 | void *data, | |
1210 | void *userdata) { | |
1211 | ||
cab6235f | 1212 | UnitFileInstallInfo *i = data; |
d7604756 | 1213 | _cleanup_free_ char *printed = NULL; |
d54c4993 LP |
1214 | int r; |
1215 | ||
142468d8 | 1216 | assert(unit); |
d54c4993 LP |
1217 | assert(filename); |
1218 | assert(lvalue); | |
1219 | assert(rvalue); | |
1220 | ||
142468d8 | 1221 | if (unit_name_is_valid(unit, UNIT_NAME_INSTANCE)) |
6597fa61 ZJS |
1222 | /* When enabling an instance, we might be using a template unit file, |
1223 | * but we should ignore DefaultInstance silently. */ | |
1224 | return 0; | |
142468d8 | 1225 | if (!unit_name_is_valid(unit, UNIT_NAME_TEMPLATE)) |
6597fa61 | 1226 | return log_syntax(unit, LOG_WARNING, filename, line, 0, |
10d67460 | 1227 | "DefaultInstance= only makes sense for template units, ignoring."); |
6597fa61 | 1228 | |
d54c4993 LP |
1229 | r = install_full_printf(i, rvalue, &printed); |
1230 | if (r < 0) | |
1231 | return r; | |
1232 | ||
d7604756 | 1233 | if (!unit_instance_is_valid(printed)) |
d54c4993 LP |
1234 | return -EINVAL; |
1235 | ||
3b319885 | 1236 | return free_and_replace(i->default_instance, printed); |
d54c4993 LP |
1237 | } |
1238 | ||
83096483 LP |
1239 | static int unit_file_load( |
1240 | InstallContext *c, | |
cab6235f | 1241 | UnitFileInstallInfo *info, |
83096483 | 1242 | const char *path, |
0ec0deaa | 1243 | SearchFlags flags) { |
83096483 | 1244 | |
f975e971 | 1245 | const ConfigTableItem items[] = { |
a7724589 | 1246 | { "Install", "Alias", config_parse_alias, 0, &info->aliases }, |
d54c4993 LP |
1247 | { "Install", "WantedBy", config_parse_strv, 0, &info->wanted_by }, |
1248 | { "Install", "RequiredBy", config_parse_strv, 0, &info->required_by }, | |
1249 | { "Install", "DefaultInstance", config_parse_default_instance, 0, info }, | |
1250 | { "Install", "Also", config_parse_also, 0, c }, | |
d54c4993 | 1251 | {} |
83096483 LP |
1252 | }; |
1253 | ||
133e5b36 | 1254 | UnitType type; |
7fd1b19b | 1255 | _cleanup_fclose_ FILE *f = NULL; |
0ec0deaa LP |
1256 | _cleanup_close_ int fd = -1; |
1257 | struct stat st; | |
1258 | int r; | |
83096483 | 1259 | |
83096483 LP |
1260 | assert(info); |
1261 | assert(path); | |
1262 | ||
142468d8 JL |
1263 | type = unit_name_to_type(info->name); |
1264 | if (unit_name_is_valid(info->name, UNIT_NAME_TEMPLATE|UNIT_NAME_INSTANCE) && | |
133e5b36 ZJS |
1265 | !unit_type_may_template(type)) |
1266 | return log_error_errno(EINVAL, "Unit type %s cannot be templated.", unit_type_to_string(type)); | |
1267 | ||
0ec0deaa LP |
1268 | if (!(flags & SEARCH_LOAD)) { |
1269 | r = lstat(path, &st); | |
1270 | if (r < 0) | |
d25e100b LP |
1271 | return -errno; |
1272 | ||
0ec0deaa LP |
1273 | if (null_or_empty(&st)) |
1274 | info->type = UNIT_FILE_TYPE_MASKED; | |
1275 | else if (S_ISREG(st.st_mode)) | |
1276 | info->type = UNIT_FILE_TYPE_REGULAR; | |
1277 | else if (S_ISLNK(st.st_mode)) | |
1278 | return -ELOOP; | |
1279 | else if (S_ISDIR(st.st_mode)) | |
1280 | return -EISDIR; | |
1281 | else | |
1282 | return -ENOTTY; | |
1283 | ||
d25e100b | 1284 | return 0; |
e94937df LN |
1285 | } |
1286 | ||
047d91f9 ZJS |
1287 | /* c is only needed if we actually load the file */ |
1288 | assert(c); | |
1289 | ||
0ec0deaa | 1290 | fd = open(path, O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW); |
83096483 LP |
1291 | if (fd < 0) |
1292 | return -errno; | |
0ec0deaa LP |
1293 | if (fstat(fd, &st) < 0) |
1294 | return -errno; | |
1295 | if (null_or_empty(&st)) { | |
d986e364 | 1296 | info->type = UNIT_FILE_TYPE_MASKED; |
0ec0deaa LP |
1297 | return 0; |
1298 | } | |
1299 | if (S_ISDIR(st.st_mode)) | |
1300 | return -EISDIR; | |
1301 | if (!S_ISREG(st.st_mode)) | |
1302 | return -ENOTTY; | |
83096483 LP |
1303 | |
1304 | f = fdopen(fd, "re"); | |
0ec0deaa LP |
1305 | if (!f) |
1306 | return -errno; | |
1307 | fd = -1; | |
83096483 | 1308 | |
142468d8 | 1309 | r = config_parse(info->name, path, f, |
36f822c4 ZJS |
1310 | NULL, |
1311 | config_item_table_lookup, items, | |
bcde742e | 1312 | CONFIG_PARSE_RELAXED|CONFIG_PARSE_ALLOW_INCLUDE, info); |
83096483 | 1313 | if (r < 0) |
59108fbe | 1314 | return log_debug_errno(r, "Failed to parse %s: %m", info->name); |
83096483 | 1315 | |
0ec0deaa | 1316 | info->type = UNIT_FILE_TYPE_REGULAR; |
aedd4012 | 1317 | |
78d54bd4 | 1318 | return |
693eb9a2 LP |
1319 | (int) strv_length(info->aliases) + |
1320 | (int) strv_length(info->wanted_by) + | |
1321 | (int) strv_length(info->required_by); | |
83096483 LP |
1322 | } |
1323 | ||
0ec0deaa LP |
1324 | static int unit_file_load_or_readlink( |
1325 | InstallContext *c, | |
1326 | UnitFileInstallInfo *info, | |
1327 | const char *path, | |
1328 | const char *root_dir, | |
1329 | SearchFlags flags) { | |
1330 | ||
401017e0 | 1331 | _cleanup_free_ char *target = NULL; |
0ec0deaa LP |
1332 | int r; |
1333 | ||
401017e0 | 1334 | r = unit_file_load(c, info, path, flags); |
0ec0deaa LP |
1335 | if (r != -ELOOP) |
1336 | return r; | |
1337 | ||
1338 | /* This is a symlink, let's read it. */ | |
1339 | ||
401017e0 | 1340 | r = readlink_malloc(path, &target); |
0ec0deaa LP |
1341 | if (r < 0) |
1342 | return r; | |
1343 | ||
401017e0 | 1344 | if (path_equal(target, "/dev/null")) |
0ec0deaa LP |
1345 | info->type = UNIT_FILE_TYPE_MASKED; |
1346 | else { | |
1347 | const char *bn; | |
1348 | UnitType a, b; | |
1349 | ||
401017e0 | 1350 | bn = basename(target); |
0ec0deaa LP |
1351 | |
1352 | if (unit_name_is_valid(info->name, UNIT_NAME_PLAIN)) { | |
1353 | ||
1354 | if (!unit_name_is_valid(bn, UNIT_NAME_PLAIN)) | |
1355 | return -EINVAL; | |
1356 | ||
1357 | } else if (unit_name_is_valid(info->name, UNIT_NAME_INSTANCE)) { | |
1358 | ||
1359 | if (!unit_name_is_valid(bn, UNIT_NAME_INSTANCE|UNIT_NAME_TEMPLATE)) | |
1360 | return -EINVAL; | |
1361 | ||
1362 | } else if (unit_name_is_valid(info->name, UNIT_NAME_TEMPLATE)) { | |
1363 | ||
1364 | if (!unit_name_is_valid(bn, UNIT_NAME_TEMPLATE)) | |
1365 | return -EINVAL; | |
1366 | } else | |
1367 | return -EINVAL; | |
1368 | ||
1369 | /* Enforce that the symlink destination does not | |
1370 | * change the unit file type. */ | |
1371 | ||
1372 | a = unit_name_to_type(info->name); | |
1373 | b = unit_name_to_type(bn); | |
1374 | if (a < 0 || b < 0 || a != b) | |
1375 | return -EINVAL; | |
1376 | ||
401017e0 LP |
1377 | if (path_is_absolute(target)) |
1378 | /* This is an absolute path, prefix the root so that we always deal with fully qualified paths */ | |
1379 | info->symlink_target = prefix_root(root_dir, target); | |
1380 | else | |
1381 | /* This is a relative path, take it relative to the dir the symlink is located in. */ | |
1382 | info->symlink_target = file_in_same_dir(path, target); | |
1383 | if (!info->symlink_target) | |
1384 | return -ENOMEM; | |
1385 | ||
0ec0deaa | 1386 | info->type = UNIT_FILE_TYPE_SYMLINK; |
0ec0deaa LP |
1387 | } |
1388 | ||
1389 | return 0; | |
1390 | } | |
1391 | ||
83096483 LP |
1392 | static int unit_file_search( |
1393 | InstallContext *c, | |
cab6235f | 1394 | UnitFileInstallInfo *info, |
a8ffe6fb | 1395 | const LookupPaths *paths, |
0ec0deaa | 1396 | SearchFlags flags) { |
83096483 | 1397 | |
64f9280e | 1398 | _cleanup_free_ char *template = NULL; |
142468d8 | 1399 | _cleanup_strv_free_ char **dirs = NULL; |
ff210466 | 1400 | _cleanup_strv_free_ char **files = NULL; |
142468d8 JL |
1401 | const char *dropin_dir_name = NULL; |
1402 | const char *dropin_template_dir_name = NULL; | |
1403 | ||
83096483 LP |
1404 | char **p; |
1405 | int r; | |
142468d8 JL |
1406 | int result; |
1407 | bool found_unit = false; | |
83096483 | 1408 | |
83096483 LP |
1409 | assert(info); |
1410 | assert(paths); | |
1411 | ||
0ec0deaa LP |
1412 | /* Was this unit already loaded? */ |
1413 | if (info->type != _UNIT_FILE_TYPE_INVALID) | |
1414 | return 0; | |
1415 | ||
278fa575 | 1416 | if (info->path) |
e4bb56c7 | 1417 | return unit_file_load_or_readlink(c, info, info->path, paths->root_dir, flags); |
83096483 LP |
1418 | |
1419 | assert(info->name); | |
1420 | ||
142468d8 JL |
1421 | if (unit_name_is_valid(info->name, UNIT_NAME_INSTANCE)) { |
1422 | r = unit_name_template(info->name, &template); | |
1423 | if (r < 0) | |
1424 | return r; | |
1425 | } | |
1426 | ||
a3c4eb07 | 1427 | STRV_FOREACH(p, paths->search_path) { |
e50bd775 | 1428 | _cleanup_free_ char *path = NULL; |
83096483 | 1429 | |
605405c6 | 1430 | path = strjoin(*p, "/", info->name); |
83096483 LP |
1431 | if (!path) |
1432 | return -ENOMEM; | |
1433 | ||
e4bb56c7 | 1434 | r = unit_file_load_or_readlink(c, info, path, paths->root_dir, flags); |
142468d8 | 1435 | |
0155928c | 1436 | if (r >= 0) { |
83096483 | 1437 | info->path = path; |
62b00233 | 1438 | path = NULL; |
142468d8 JL |
1439 | result = r; |
1440 | found_unit = true; | |
1441 | break; | |
a1feacf7 | 1442 | } else if (!IN_SET(r, -ENOENT, -ENOTDIR, -EACCES)) |
0155928c | 1443 | return r; |
e50bd775 | 1444 | } |
62b00233 | 1445 | |
142468d8 JL |
1446 | if (!found_unit && template) { |
1447 | ||
e50bd775 LP |
1448 | /* Unit file doesn't exist, however instance |
1449 | * enablement was requested. We will check if it is | |
1450 | * possible to load template unit file. */ | |
29283ea4 | 1451 | |
a3c4eb07 | 1452 | STRV_FOREACH(p, paths->search_path) { |
e50bd775 LP |
1453 | _cleanup_free_ char *path = NULL; |
1454 | ||
605405c6 | 1455 | path = strjoin(*p, "/", template); |
62b00233 ZJS |
1456 | if (!path) |
1457 | return -ENOMEM; | |
29283ea4 | 1458 | |
e4bb56c7 | 1459 | r = unit_file_load_or_readlink(c, info, path, paths->root_dir, flags); |
0155928c | 1460 | if (r >= 0) { |
62b00233 ZJS |
1461 | info->path = path; |
1462 | path = NULL; | |
142468d8 JL |
1463 | result = r; |
1464 | found_unit = true; | |
1465 | break; | |
a1feacf7 | 1466 | } else if (!IN_SET(r, -ENOENT, -ENOTDIR, -EACCES)) |
0155928c | 1467 | return r; |
29283ea4 | 1468 | } |
83096483 LP |
1469 | } |
1470 | ||
142468d8 JL |
1471 | if (!found_unit) { |
1472 | log_debug("Cannot find unit %s%s%s.", info->name, template ? " or " : "", strempty(template)); | |
1473 | return -ENOENT; | |
1474 | } | |
1475 | ||
1476 | /* Search for drop-in directories */ | |
1477 | ||
1478 | dropin_dir_name = strjoina(info->name, ".d"); | |
1479 | STRV_FOREACH(p, paths->search_path) { | |
1480 | char *path; | |
1481 | ||
1482 | path = path_join(NULL, *p, dropin_dir_name); | |
1483 | if (!path) | |
1484 | return -ENOMEM; | |
1485 | ||
1486 | r = strv_consume(&dirs, path); | |
1487 | if (r < 0) | |
1488 | return r; | |
1489 | } | |
1490 | ||
1491 | if (template) { | |
1492 | dropin_template_dir_name = strjoina(template, ".d"); | |
1493 | STRV_FOREACH(p, paths->search_path) { | |
1494 | char *path; | |
1495 | ||
1496 | path = path_join(NULL, *p, dropin_template_dir_name); | |
1497 | if (!path) | |
1498 | return -ENOMEM; | |
1499 | ||
1500 | r = strv_consume(&dirs, path); | |
1501 | if (r < 0) | |
1502 | return r; | |
1503 | } | |
1504 | } | |
1505 | ||
1506 | /* Load drop-in conf files */ | |
1507 | ||
1508 | r = conf_files_list_strv(&files, ".conf", NULL, 0, (const char**) dirs); | |
1509 | if (r < 0) | |
1510 | return log_debug_errno(r, "Failed to get list of conf files: %m"); | |
1511 | ||
1512 | STRV_FOREACH(p, files) { | |
1513 | r = unit_file_load_or_readlink(c, info, *p, paths->root_dir, flags); | |
1514 | if (r < 0) | |
1515 | return log_debug_errno(r, "Failed to load conf file %s: %m", *p); | |
1516 | } | |
1517 | ||
1518 | return result; | |
83096483 LP |
1519 | } |
1520 | ||
0ec0deaa LP |
1521 | static int install_info_follow( |
1522 | InstallContext *c, | |
1523 | UnitFileInstallInfo *i, | |
83096483 | 1524 | const char *root_dir, |
9f6cbcf5 LP |
1525 | SearchFlags flags, |
1526 | bool ignore_different_name) { | |
0ec0deaa LP |
1527 | |
1528 | assert(c); | |
1529 | assert(i); | |
1530 | ||
1531 | if (i->type != UNIT_FILE_TYPE_SYMLINK) | |
1532 | return -EINVAL; | |
1533 | if (!i->symlink_target) | |
1534 | return -EINVAL; | |
1535 | ||
1536 | /* If the basename doesn't match, the caller should add a | |
1537 | * complete new entry for this. */ | |
1538 | ||
9f6cbcf5 | 1539 | if (!ignore_different_name && !streq(basename(i->symlink_target), i->name)) |
0ec0deaa LP |
1540 | return -EXDEV; |
1541 | ||
3b319885 | 1542 | free_and_replace(i->path, i->symlink_target); |
0ec0deaa LP |
1543 | i->type = _UNIT_FILE_TYPE_INVALID; |
1544 | ||
1545 | return unit_file_load_or_readlink(c, i, i->path, root_dir, flags); | |
1546 | } | |
1547 | ||
64f9280e | 1548 | /** |
ff56349d ZJS |
1549 | * Search for the unit file. If the unit name is a symlink, follow the symlink to the |
1550 | * target, maybe more than once. Propagate the instance name if present. | |
64f9280e | 1551 | */ |
0ec0deaa LP |
1552 | static int install_info_traverse( |
1553 | UnitFileScope scope, | |
1554 | InstallContext *c, | |
0ec0deaa LP |
1555 | const LookupPaths *paths, |
1556 | UnitFileInstallInfo *start, | |
1557 | SearchFlags flags, | |
1558 | UnitFileInstallInfo **ret) { | |
83096483 | 1559 | |
cab6235f | 1560 | UnitFileInstallInfo *i; |
0ec0deaa | 1561 | unsigned k = 0; |
83096483 LP |
1562 | int r; |
1563 | ||
1564 | assert(paths); | |
0ec0deaa LP |
1565 | assert(start); |
1566 | assert(c); | |
83096483 | 1567 | |
e4bb56c7 | 1568 | r = unit_file_search(c, start, paths, flags); |
83096483 LP |
1569 | if (r < 0) |
1570 | return r; | |
1571 | ||
0ec0deaa LP |
1572 | i = start; |
1573 | while (i->type == UNIT_FILE_TYPE_SYMLINK) { | |
1574 | /* Follow the symlink */ | |
83096483 | 1575 | |
0ec0deaa LP |
1576 | if (++k > UNIT_FILE_FOLLOW_SYMLINK_MAX) |
1577 | return -ELOOP; | |
83096483 | 1578 | |
e1c5c2b0 | 1579 | if (!(flags & SEARCH_FOLLOW_CONFIG_SYMLINKS)) { |
dfead90d | 1580 | r = path_is_config(paths, i->path, true); |
e1c5c2b0 LP |
1581 | if (r < 0) |
1582 | return r; | |
1583 | if (r > 0) | |
1584 | return -ELOOP; | |
1585 | } | |
83096483 | 1586 | |
9f6cbcf5 | 1587 | r = install_info_follow(c, i, paths->root_dir, flags, false); |
0155928c | 1588 | if (r == -EXDEV) { |
0ec0deaa LP |
1589 | _cleanup_free_ char *buffer = NULL; |
1590 | const char *bn; | |
83096483 | 1591 | |
0ec0deaa LP |
1592 | /* Target has a different name, create a new |
1593 | * install info object for that, and continue | |
1594 | * with that. */ | |
83096483 | 1595 | |
0ec0deaa | 1596 | bn = basename(i->symlink_target); |
83096483 | 1597 | |
0ec0deaa LP |
1598 | if (unit_name_is_valid(i->name, UNIT_NAME_INSTANCE) && |
1599 | unit_name_is_valid(bn, UNIT_NAME_TEMPLATE)) { | |
83096483 | 1600 | |
0ec0deaa LP |
1601 | _cleanup_free_ char *instance = NULL; |
1602 | ||
1603 | r = unit_name_to_instance(i->name, &instance); | |
1604 | if (r < 0) | |
1605 | return r; | |
1606 | ||
1607 | r = unit_name_replace_instance(bn, instance, &buffer); | |
1608 | if (r < 0) | |
1609 | return r; | |
1610 | ||
9f6cbcf5 LP |
1611 | if (streq(buffer, i->name)) { |
1612 | ||
1613 | /* We filled in the instance, and the target stayed the same? If so, then let's | |
1614 | * honour the link as it is. */ | |
1615 | ||
1616 | r = install_info_follow(c, i, paths->root_dir, flags, true); | |
1617 | if (r < 0) | |
1618 | return r; | |
1619 | ||
1620 | continue; | |
1621 | } | |
1622 | ||
0ec0deaa LP |
1623 | bn = buffer; |
1624 | } | |
1625 | ||
19539807 | 1626 | r = install_info_add(c, bn, NULL, false, &i); |
0ec0deaa LP |
1627 | if (r < 0) |
1628 | return r; | |
1629 | ||
0155928c | 1630 | /* Try again, with the new target we found. */ |
e4bb56c7 | 1631 | r = unit_file_search(c, i, paths, flags); |
893275df ZJS |
1632 | if (r == -ENOENT) |
1633 | /* Translate error code to highlight this specific case */ | |
1634 | return -ENOLINK; | |
0ec0deaa LP |
1635 | } |
1636 | ||
0155928c ZJS |
1637 | if (r < 0) |
1638 | return r; | |
83096483 LP |
1639 | } |
1640 | ||
0ec0deaa LP |
1641 | if (ret) |
1642 | *ret = i; | |
83096483 | 1643 | |
0ec0deaa LP |
1644 | return 0; |
1645 | } | |
83096483 | 1646 | |
ff56349d ZJS |
1647 | /** |
1648 | * Call install_info_add() with name_or_path as the path (if name_or_path starts with "/") | |
1649 | * or the name (otherwise). root_dir is prepended to the path. | |
1650 | */ | |
401017e0 LP |
1651 | static int install_info_add_auto( |
1652 | InstallContext *c, | |
1653 | const LookupPaths *paths, | |
1654 | const char *name_or_path, | |
1655 | UnitFileInstallInfo **ret) { | |
1656 | ||
1657 | assert(c); | |
1658 | assert(name_or_path); | |
1659 | ||
1660 | if (path_is_absolute(name_or_path)) { | |
1661 | const char *pp; | |
1662 | ||
1663 | pp = prefix_roota(paths->root_dir, name_or_path); | |
1664 | ||
19539807 | 1665 | return install_info_add(c, NULL, pp, false, ret); |
401017e0 | 1666 | } else |
19539807 | 1667 | return install_info_add(c, name_or_path, NULL, false, ret); |
401017e0 LP |
1668 | } |
1669 | ||
0ec0deaa LP |
1670 | static int install_info_discover( |
1671 | UnitFileScope scope, | |
1672 | InstallContext *c, | |
0ec0deaa LP |
1673 | const LookupPaths *paths, |
1674 | const char *name, | |
1675 | SearchFlags flags, | |
59108fbe ZJS |
1676 | UnitFileInstallInfo **ret, |
1677 | UnitFileChange **changes, | |
1678 | unsigned *n_changes) { | |
83096483 | 1679 | |
0ec0deaa LP |
1680 | UnitFileInstallInfo *i; |
1681 | int r; | |
83096483 | 1682 | |
0ec0deaa LP |
1683 | assert(c); |
1684 | assert(paths); | |
1685 | assert(name); | |
1686 | ||
401017e0 | 1687 | r = install_info_add_auto(c, paths, name, &i); |
59108fbe ZJS |
1688 | if (r >= 0) |
1689 | r = install_info_traverse(scope, c, paths, i, flags, ret); | |
83096483 | 1690 | |
59108fbe ZJS |
1691 | if (r < 0) |
1692 | unit_file_changes_add(changes, n_changes, r, name, NULL); | |
1693 | return r; | |
83096483 LP |
1694 | } |
1695 | ||
1696 | static int install_info_symlink_alias( | |
cab6235f | 1697 | UnitFileInstallInfo *i, |
401017e0 | 1698 | const LookupPaths *paths, |
83096483 LP |
1699 | const char *config_path, |
1700 | bool force, | |
1701 | UnitFileChange **changes, | |
1702 | unsigned *n_changes) { | |
1703 | ||
1704 | char **s; | |
1705 | int r = 0, q; | |
1706 | ||
1707 | assert(i); | |
401017e0 | 1708 | assert(paths); |
83096483 LP |
1709 | assert(config_path); |
1710 | ||
1711 | STRV_FOREACH(s, i->aliases) { | |
7fd1b19b | 1712 | _cleanup_free_ char *alias_path = NULL, *dst = NULL; |
83096483 | 1713 | |
19f6d710 LP |
1714 | q = install_full_printf(i, *s, &dst); |
1715 | if (q < 0) | |
1716 | return q; | |
83096483 | 1717 | |
7584d236 | 1718 | alias_path = path_make_absolute(dst, config_path); |
83096483 LP |
1719 | if (!alias_path) |
1720 | return -ENOMEM; | |
1721 | ||
60bec8e4 | 1722 | q = create_symlink(paths, i->path, alias_path, force, changes, n_changes); |
83096483 LP |
1723 | if (r == 0) |
1724 | r = q; | |
1725 | } | |
1726 | ||
1727 | return r; | |
1728 | } | |
1729 | ||
1730 | static int install_info_symlink_wants( | |
cab6235f | 1731 | UnitFileInstallInfo *i, |
401017e0 | 1732 | const LookupPaths *paths, |
83096483 | 1733 | const char *config_path, |
d54c4993 LP |
1734 | char **list, |
1735 | const char *suffix, | |
83096483 LP |
1736 | UnitFileChange **changes, |
1737 | unsigned *n_changes) { | |
1738 | ||
d54c4993 LP |
1739 | _cleanup_free_ char *buf = NULL; |
1740 | const char *n; | |
83096483 LP |
1741 | char **s; |
1742 | int r = 0, q; | |
1743 | ||
1744 | assert(i); | |
401017e0 | 1745 | assert(paths); |
83096483 LP |
1746 | assert(config_path); |
1747 | ||
047d91f9 ZJS |
1748 | if (strv_isempty(list)) |
1749 | return 0; | |
1750 | ||
be704916 | 1751 | if (unit_name_is_valid(i->name, UNIT_NAME_TEMPLATE) && i->default_instance) { |
047d91f9 ZJS |
1752 | UnitFileInstallInfo instance = { |
1753 | .type = _UNIT_FILE_TYPE_INVALID, | |
1754 | }; | |
1755 | _cleanup_free_ char *path = NULL; | |
0a327d75 | 1756 | |
7410616c LP |
1757 | r = unit_name_replace_instance(i->name, i->default_instance, &buf); |
1758 | if (r < 0) | |
1759 | return r; | |
83096483 | 1760 | |
047d91f9 ZJS |
1761 | instance.name = buf; |
1762 | r = unit_file_search(NULL, &instance, paths, SEARCH_FOLLOW_CONFIG_SYMLINKS); | |
1763 | if (r < 0) | |
1764 | return r; | |
1765 | ||
1766 | path = instance.path; | |
1767 | instance.path = NULL; | |
1768 | ||
1769 | if (instance.type == UNIT_FILE_TYPE_MASKED) { | |
1770 | unit_file_changes_add(changes, n_changes, -ERFKILL, path, NULL); | |
1771 | return -ERFKILL; | |
1772 | } | |
1773 | ||
d54c4993 LP |
1774 | n = buf; |
1775 | } else | |
1776 | n = i->name; | |
78d54bd4 | 1777 | |
d54c4993 | 1778 | STRV_FOREACH(s, list) { |
7fd1b19b | 1779 | _cleanup_free_ char *path = NULL, *dst = NULL; |
78d54bd4 | 1780 | |
19f6d710 LP |
1781 | q = install_full_printf(i, *s, &dst); |
1782 | if (q < 0) | |
1783 | return q; | |
7584d236 | 1784 | |
7410616c | 1785 | if (!unit_name_is_valid(dst, UNIT_NAME_ANY)) { |
78d54bd4 LP |
1786 | r = -EINVAL; |
1787 | continue; | |
1788 | } | |
1789 | ||
605405c6 | 1790 | path = strjoin(config_path, "/", dst, suffix, n); |
d54c4993 | 1791 | if (!path) |
78d54bd4 LP |
1792 | return -ENOMEM; |
1793 | ||
60bec8e4 | 1794 | q = create_symlink(paths, i->path, path, true, changes, n_changes); |
78d54bd4 LP |
1795 | if (r == 0) |
1796 | r = q; | |
1797 | } | |
1798 | ||
1799 | return r; | |
1800 | } | |
1801 | ||
83096483 | 1802 | static int install_info_symlink_link( |
cab6235f | 1803 | UnitFileInstallInfo *i, |
a8ffe6fb | 1804 | const LookupPaths *paths, |
83096483 LP |
1805 | const char *config_path, |
1806 | bool force, | |
1807 | UnitFileChange **changes, | |
1808 | unsigned *n_changes) { | |
1809 | ||
7fd1b19b | 1810 | _cleanup_free_ char *path = NULL; |
1dacfd2a | 1811 | int r; |
83096483 LP |
1812 | |
1813 | assert(i); | |
1814 | assert(paths); | |
1815 | assert(config_path); | |
1816 | assert(i->path); | |
1817 | ||
32c0ed7b | 1818 | r = in_search_path(paths, i->path); |
fe4aede9 | 1819 | if (r < 0) |
83096483 | 1820 | return r; |
fe4aede9 ZJS |
1821 | if (r > 0) |
1822 | return 0; | |
83096483 | 1823 | |
605405c6 | 1824 | path = strjoin(config_path, "/", i->name); |
1dacfd2a | 1825 | if (!path) |
83096483 LP |
1826 | return -ENOMEM; |
1827 | ||
60bec8e4 | 1828 | return create_symlink(paths, i->path, path, force, changes, n_changes); |
83096483 LP |
1829 | } |
1830 | ||
1831 | static int install_info_apply( | |
cab6235f | 1832 | UnitFileInstallInfo *i, |
a8ffe6fb | 1833 | const LookupPaths *paths, |
83096483 LP |
1834 | const char *config_path, |
1835 | bool force, | |
1836 | UnitFileChange **changes, | |
1837 | unsigned *n_changes) { | |
1838 | ||
1839 | int r, q; | |
1840 | ||
1841 | assert(i); | |
1842 | assert(paths); | |
1843 | assert(config_path); | |
1844 | ||
0ec0deaa LP |
1845 | if (i->type != UNIT_FILE_TYPE_REGULAR) |
1846 | return 0; | |
1847 | ||
401017e0 | 1848 | r = install_info_symlink_alias(i, paths, config_path, force, changes, n_changes); |
83096483 | 1849 | |
29380daf | 1850 | q = install_info_symlink_wants(i, paths, config_path, i->wanted_by, ".wants/", changes, n_changes); |
83096483 LP |
1851 | if (r == 0) |
1852 | r = q; | |
1853 | ||
29380daf | 1854 | q = install_info_symlink_wants(i, paths, config_path, i->required_by, ".requires/", changes, n_changes); |
78d54bd4 LP |
1855 | if (r == 0) |
1856 | r = q; | |
1857 | ||
e4bb56c7 | 1858 | q = install_info_symlink_link(i, paths, config_path, force, changes, n_changes); |
fe4aede9 ZJS |
1859 | /* Do not count links to the unit file towards the "carries_install_info" count */ |
1860 | if (r == 0 && q < 0) | |
83096483 LP |
1861 | r = q; |
1862 | ||
1863 | return r; | |
1864 | } | |
1865 | ||
1866 | static int install_context_apply( | |
0ec0deaa | 1867 | UnitFileScope scope, |
83096483 | 1868 | InstallContext *c, |
a8ffe6fb | 1869 | const LookupPaths *paths, |
83096483 | 1870 | const char *config_path, |
83096483 | 1871 | bool force, |
0ec0deaa | 1872 | SearchFlags flags, |
83096483 LP |
1873 | UnitFileChange **changes, |
1874 | unsigned *n_changes) { | |
1875 | ||
cab6235f | 1876 | UnitFileInstallInfo *i; |
0ec0deaa | 1877 | int r; |
83096483 LP |
1878 | |
1879 | assert(c); | |
1880 | assert(paths); | |
1881 | assert(config_path); | |
1882 | ||
0ec0deaa | 1883 | if (ordered_hashmap_isempty(c->will_process)) |
d25e100b | 1884 | return 0; |
83096483 | 1885 | |
0ec0deaa | 1886 | r = ordered_hashmap_ensure_allocated(&c->have_processed, &string_hash_ops); |
d25e100b LP |
1887 | if (r < 0) |
1888 | return r; | |
83096483 | 1889 | |
2d5c93c7 | 1890 | r = 0; |
0ec0deaa LP |
1891 | while ((i = ordered_hashmap_first(c->will_process))) { |
1892 | int q; | |
83096483 | 1893 | |
0ec0deaa LP |
1894 | q = ordered_hashmap_move_one(c->have_processed, c->will_process, i->name); |
1895 | if (q < 0) | |
1896 | return q; | |
83096483 | 1897 | |
e4bb56c7 | 1898 | r = install_info_traverse(scope, c, paths, i, flags, NULL); |
db093eed ZJS |
1899 | if (r < 0) { |
1900 | unit_file_changes_add(changes, n_changes, r, i->name, NULL); | |
83096483 | 1901 | return r; |
db093eed | 1902 | } |
0ec0deaa | 1903 | |
f1651715 | 1904 | /* We can attempt to process a masked unit when a different unit |
047d91f9 | 1905 | * that we were processing specifies it in Also=. */ |
f1651715 ZJS |
1906 | if (i->type == UNIT_FILE_TYPE_MASKED) { |
1907 | unit_file_changes_add(changes, n_changes, UNIT_FILE_IS_MASKED, i->path, NULL); | |
1908 | if (r >= 0) | |
047d91f9 ZJS |
1909 | /* Assume that something *could* have been enabled here, |
1910 | * avoid "empty [Install] section" warning. */ | |
f1651715 ZJS |
1911 | r += 1; |
1912 | continue; | |
1913 | } | |
1914 | ||
0ec0deaa LP |
1915 | if (i->type != UNIT_FILE_TYPE_REGULAR) |
1916 | continue; | |
83096483 | 1917 | |
e4bb56c7 | 1918 | q = install_info_apply(i, paths, config_path, force, changes, n_changes); |
0ec0deaa LP |
1919 | if (r >= 0) { |
1920 | if (q < 0) | |
1921 | r = q; | |
1922 | else | |
596fc263 | 1923 | r += q; |
0ec0deaa | 1924 | } |
83096483 LP |
1925 | } |
1926 | ||
1927 | return r; | |
1928 | } | |
1929 | ||
1930 | static int install_context_mark_for_removal( | |
0ec0deaa | 1931 | UnitFileScope scope, |
83096483 | 1932 | InstallContext *c, |
a8ffe6fb | 1933 | const LookupPaths *paths, |
83096483 | 1934 | Set **remove_symlinks_to, |
637d6e5b LP |
1935 | const char *config_path, |
1936 | UnitFileChange **changes, | |
1937 | unsigned *n_changes) { | |
83096483 | 1938 | |
cab6235f | 1939 | UnitFileInstallInfo *i; |
0ec0deaa | 1940 | int r; |
83096483 LP |
1941 | |
1942 | assert(c); | |
1943 | assert(paths); | |
1944 | assert(config_path); | |
1945 | ||
1946 | /* Marks all items for removal */ | |
1947 | ||
0ec0deaa | 1948 | if (ordered_hashmap_isempty(c->will_process)) |
d25e100b | 1949 | return 0; |
83096483 | 1950 | |
0ec0deaa | 1951 | r = ordered_hashmap_ensure_allocated(&c->have_processed, &string_hash_ops); |
d25e100b LP |
1952 | if (r < 0) |
1953 | return r; | |
83096483 | 1954 | |
0ec0deaa | 1955 | while ((i = ordered_hashmap_first(c->will_process))) { |
83096483 | 1956 | |
0ec0deaa LP |
1957 | r = ordered_hashmap_move_one(c->have_processed, c->will_process, i->name); |
1958 | if (r < 0) | |
83096483 | 1959 | return r; |
29283ea4 | 1960 | |
e4bb56c7 | 1961 | r = install_info_traverse(scope, c, paths, i, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS, NULL); |
19539807 | 1962 | if (r == -ENOLINK) { |
637d6e5b LP |
1963 | log_debug_errno(r, "Name %s leads to a dangling symlink, removing name.", i->name); |
1964 | unit_file_changes_add(changes, n_changes, UNIT_FILE_IS_DANGLING, i->path ?: i->name, NULL); | |
1965 | } else if (r == -ENOENT) { | |
1966 | ||
1967 | if (i->auxiliary) /* some unit specified in Also= or similar is missing */ | |
1968 | log_debug_errno(r, "Auxiliary unit of %s not found, removing name.", i->name); | |
1969 | else { | |
1970 | log_debug_errno(r, "Unit %s not found, removing name.", i->name); | |
1971 | unit_file_changes_add(changes, n_changes, r, i->path ?: i->name, NULL); | |
1972 | } | |
0ec0deaa | 1973 | |
637d6e5b LP |
1974 | } else if (r < 0) { |
1975 | log_debug_errno(r, "Failed to find unit %s, removing name: %m", i->name); | |
1976 | unit_file_changes_add(changes, n_changes, r, i->path ?: i->name, NULL); | |
1977 | } else if (i->type == UNIT_FILE_TYPE_MASKED) { | |
1978 | log_debug("Unit file %s is masked, ignoring.", i->name); | |
1979 | unit_file_changes_add(changes, n_changes, UNIT_FILE_IS_MASKED, i->path ?: i->name, NULL); | |
1980 | continue; | |
1981 | } else if (i->type != UNIT_FILE_TYPE_REGULAR) { | |
1982 | log_debug("Unit %s has type %s, ignoring.", i->name, unit_file_type_to_string(i->type) ?: "invalid"); | |
0ec0deaa | 1983 | continue; |
64f9280e | 1984 | } |
0ec0deaa LP |
1985 | |
1986 | r = mark_symlink_for_removal(remove_symlinks_to, i->name); | |
1987 | if (r < 0) | |
1988 | return r; | |
1989 | } | |
1990 | ||
1991 | return 0; | |
1992 | } | |
1993 | ||
1994 | int unit_file_mask( | |
1995 | UnitFileScope scope, | |
b3796dd8 | 1996 | UnitFileFlags flags, |
0ec0deaa LP |
1997 | const char *root_dir, |
1998 | char **files, | |
0ec0deaa LP |
1999 | UnitFileChange **changes, |
2000 | unsigned *n_changes) { | |
2001 | ||
e1c5c2b0 LP |
2002 | _cleanup_lookup_paths_free_ LookupPaths paths = {}; |
2003 | const char *config_path; | |
0ec0deaa LP |
2004 | char **i; |
2005 | int r; | |
2006 | ||
2007 | assert(scope >= 0); | |
2008 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
2009 | ||
4943d143 | 2010 | r = lookup_paths_init(&paths, scope, 0, root_dir); |
0ec0deaa LP |
2011 | if (r < 0) |
2012 | return r; | |
2013 | ||
b3796dd8 | 2014 | config_path = (flags & UNIT_FILE_RUNTIME) ? paths.runtime_config : paths.persistent_config; |
d0fd66a3 LP |
2015 | if (!config_path) |
2016 | return -ENXIO; | |
e1c5c2b0 | 2017 | |
0ec0deaa LP |
2018 | STRV_FOREACH(i, files) { |
2019 | _cleanup_free_ char *path = NULL; | |
2020 | int q; | |
2021 | ||
2022 | if (!unit_name_is_valid(*i, UNIT_NAME_ANY)) { | |
2023 | if (r == 0) | |
2024 | r = -EINVAL; | |
2025 | continue; | |
2026 | } | |
2027 | ||
e1c5c2b0 | 2028 | path = path_make_absolute(*i, config_path); |
0ec0deaa LP |
2029 | if (!path) |
2030 | return -ENOMEM; | |
29283ea4 | 2031 | |
b3796dd8 | 2032 | q = create_symlink(&paths, "/dev/null", path, !!(flags & UNIT_FILE_FORCE), changes, n_changes); |
0ec0deaa | 2033 | if (q < 0 && r >= 0) |
83096483 LP |
2034 | r = q; |
2035 | } | |
2036 | ||
2037 | return r; | |
2038 | } | |
2039 | ||
0ec0deaa LP |
2040 | int unit_file_unmask( |
2041 | UnitFileScope scope, | |
b3796dd8 | 2042 | UnitFileFlags flags, |
0ec0deaa LP |
2043 | const char *root_dir, |
2044 | char **files, | |
2045 | UnitFileChange **changes, | |
2046 | unsigned *n_changes) { | |
2047 | ||
e1c5c2b0 | 2048 | _cleanup_lookup_paths_free_ LookupPaths paths = {}; |
0ec0deaa | 2049 | _cleanup_set_free_free_ Set *remove_symlinks_to = NULL; |
dc7dd61d | 2050 | _cleanup_strv_free_ char **todo = NULL; |
0ec0deaa | 2051 | size_t n_todo = 0, n_allocated = 0; |
e1c5c2b0 | 2052 | const char *config_path; |
0ec0deaa | 2053 | char **i; |
3b3557c4 | 2054 | bool dry_run; |
0ec0deaa LP |
2055 | int r, q; |
2056 | ||
2057 | assert(scope >= 0); | |
2058 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
2059 | ||
4943d143 | 2060 | r = lookup_paths_init(&paths, scope, 0, root_dir); |
0ec0deaa LP |
2061 | if (r < 0) |
2062 | return r; | |
2063 | ||
b3796dd8 | 2064 | config_path = (flags & UNIT_FILE_RUNTIME) ? paths.runtime_config : paths.persistent_config; |
d0fd66a3 LP |
2065 | if (!config_path) |
2066 | return -ENXIO; | |
2067 | ||
3b3557c4 | 2068 | dry_run = !!(flags & UNIT_FILE_DRY_RUN); |
e1c5c2b0 | 2069 | |
0ec0deaa LP |
2070 | STRV_FOREACH(i, files) { |
2071 | _cleanup_free_ char *path = NULL; | |
2072 | ||
2073 | if (!unit_name_is_valid(*i, UNIT_NAME_ANY)) | |
2074 | return -EINVAL; | |
2075 | ||
2076 | path = path_make_absolute(*i, config_path); | |
2077 | if (!path) | |
2078 | return -ENOMEM; | |
2079 | ||
2080 | r = null_or_empty_path(path); | |
2081 | if (r == -ENOENT) | |
2082 | continue; | |
2083 | if (r < 0) | |
2084 | return r; | |
2085 | if (r == 0) | |
2086 | continue; | |
2087 | ||
2088 | if (!GREEDY_REALLOC0(todo, n_allocated, n_todo + 2)) | |
2089 | return -ENOMEM; | |
2090 | ||
d054eae6 EV |
2091 | todo[n_todo] = strdup(*i); |
2092 | if (!todo[n_todo]) | |
2093 | return -ENOMEM; | |
2094 | ||
2095 | n_todo++; | |
0ec0deaa LP |
2096 | } |
2097 | ||
2098 | strv_uniq(todo); | |
2099 | ||
2100 | r = 0; | |
2101 | STRV_FOREACH(i, todo) { | |
2102 | _cleanup_free_ char *path = NULL; | |
401017e0 | 2103 | const char *rp; |
0ec0deaa LP |
2104 | |
2105 | path = path_make_absolute(*i, config_path); | |
2106 | if (!path) | |
2107 | return -ENOMEM; | |
2108 | ||
3b3557c4 | 2109 | if (!dry_run && unlink(path) < 0) { |
af3d8113 ZJS |
2110 | if (errno != ENOENT) { |
2111 | if (r >= 0) | |
2112 | r = -errno; | |
2113 | unit_file_changes_add(changes, n_changes, -errno, path, NULL); | |
2114 | } | |
0ec0deaa | 2115 | |
401017e0 | 2116 | continue; |
0ec0deaa | 2117 | } |
401017e0 LP |
2118 | |
2119 | unit_file_changes_add(changes, n_changes, UNIT_FILE_UNLINK, path, NULL); | |
2120 | ||
2121 | rp = skip_root(&paths, path); | |
2122 | q = mark_symlink_for_removal(&remove_symlinks_to, rp ?: path); | |
2123 | if (q < 0) | |
2124 | return q; | |
0ec0deaa LP |
2125 | } |
2126 | ||
3b3557c4 | 2127 | q = remove_marked_symlinks(remove_symlinks_to, config_path, &paths, dry_run, changes, n_changes); |
0ec0deaa LP |
2128 | if (r >= 0) |
2129 | r = q; | |
2130 | ||
2131 | return r; | |
2132 | } | |
2133 | ||
2134 | int unit_file_link( | |
e94937df | 2135 | UnitFileScope scope, |
b3796dd8 | 2136 | UnitFileFlags flags, |
e94937df LN |
2137 | const char *root_dir, |
2138 | char **files, | |
e94937df LN |
2139 | UnitFileChange **changes, |
2140 | unsigned *n_changes) { | |
2141 | ||
2142 | _cleanup_lookup_paths_free_ LookupPaths paths = {}; | |
8af35ba6 | 2143 | _cleanup_strv_free_ char **todo = NULL; |
0ec0deaa | 2144 | size_t n_todo = 0, n_allocated = 0; |
e1c5c2b0 | 2145 | const char *config_path; |
e94937df | 2146 | char **i; |
0ec0deaa | 2147 | int r, q; |
e94937df LN |
2148 | |
2149 | assert(scope >= 0); | |
2150 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
2151 | ||
4943d143 | 2152 | r = lookup_paths_init(&paths, scope, 0, root_dir); |
e94937df LN |
2153 | if (r < 0) |
2154 | return r; | |
2155 | ||
b3796dd8 | 2156 | config_path = (flags & UNIT_FILE_RUNTIME) ? paths.runtime_config : paths.persistent_config; |
d0fd66a3 LP |
2157 | if (!config_path) |
2158 | return -ENXIO; | |
e94937df LN |
2159 | |
2160 | STRV_FOREACH(i, files) { | |
0ec0deaa LP |
2161 | _cleanup_free_ char *full = NULL; |
2162 | struct stat st; | |
2163 | char *fn; | |
e94937df | 2164 | |
0ec0deaa LP |
2165 | if (!path_is_absolute(*i)) |
2166 | return -EINVAL; | |
e94937df | 2167 | |
0ec0deaa LP |
2168 | fn = basename(*i); |
2169 | if (!unit_name_is_valid(fn, UNIT_NAME_ANY)) | |
2170 | return -EINVAL; | |
2171 | ||
e4bb56c7 | 2172 | full = prefix_root(paths.root_dir, *i); |
0ec0deaa LP |
2173 | if (!full) |
2174 | return -ENOMEM; | |
2175 | ||
2176 | if (lstat(full, &st) < 0) | |
2177 | return -errno; | |
2178 | if (S_ISLNK(st.st_mode)) | |
2179 | return -ELOOP; | |
2180 | if (S_ISDIR(st.st_mode)) | |
2181 | return -EISDIR; | |
2182 | if (!S_ISREG(st.st_mode)) | |
2183 | return -ENOTTY; | |
2184 | ||
32c0ed7b | 2185 | q = in_search_path(&paths, *i); |
0ec0deaa LP |
2186 | if (q < 0) |
2187 | return q; | |
2188 | if (q > 0) | |
2189 | continue; | |
2190 | ||
2191 | if (!GREEDY_REALLOC0(todo, n_allocated, n_todo + 2)) | |
2192 | return -ENOMEM; | |
2193 | ||
8af35ba6 EV |
2194 | todo[n_todo] = strdup(*i); |
2195 | if (!todo[n_todo]) | |
2196 | return -ENOMEM; | |
2197 | ||
2198 | n_todo++; | |
e94937df LN |
2199 | } |
2200 | ||
0ec0deaa | 2201 | strv_uniq(todo); |
e94937df | 2202 | |
0ec0deaa LP |
2203 | r = 0; |
2204 | STRV_FOREACH(i, todo) { | |
401017e0 | 2205 | _cleanup_free_ char *new_path = NULL; |
0ec0deaa | 2206 | |
401017e0 LP |
2207 | new_path = path_make_absolute(basename(*i), config_path); |
2208 | if (!new_path) | |
0ec0deaa LP |
2209 | return -ENOMEM; |
2210 | ||
b3796dd8 | 2211 | q = create_symlink(&paths, *i, new_path, !!(flags & UNIT_FILE_FORCE), changes, n_changes); |
0ec0deaa LP |
2212 | if (q < 0 && r >= 0) |
2213 | r = q; | |
2d5c93c7 MS |
2214 | } |
2215 | ||
0ec0deaa LP |
2216 | return r; |
2217 | } | |
2218 | ||
344ca755 LP |
2219 | static int path_shall_revert(const LookupPaths *paths, const char *path) { |
2220 | int r; | |
2221 | ||
2222 | assert(paths); | |
2223 | assert(path); | |
2224 | ||
2225 | /* Checks whether the path is one where the drop-in directories shall be removed. */ | |
2226 | ||
dfead90d | 2227 | r = path_is_config(paths, path, true); |
344ca755 LP |
2228 | if (r != 0) |
2229 | return r; | |
2230 | ||
2231 | r = path_is_control(paths, path); | |
2232 | if (r != 0) | |
2233 | return r; | |
2234 | ||
2235 | return path_is_transient(paths, path); | |
2236 | } | |
2237 | ||
2238 | int unit_file_revert( | |
2239 | UnitFileScope scope, | |
2240 | const char *root_dir, | |
2241 | char **files, | |
2242 | UnitFileChange **changes, | |
2243 | unsigned *n_changes) { | |
2244 | ||
2245 | _cleanup_set_free_free_ Set *remove_symlinks_to = NULL; | |
344ca755 LP |
2246 | _cleanup_lookup_paths_free_ LookupPaths paths = {}; |
2247 | _cleanup_strv_free_ char **todo = NULL; | |
2248 | size_t n_todo = 0, n_allocated = 0; | |
2249 | char **i; | |
2250 | int r, q; | |
2251 | ||
2252 | /* Puts a unit file back into vendor state. This means: | |
2253 | * | |
2254 | * a) we remove all drop-in snippets added by the user ("config"), add to transient units ("transient"), and | |
2255 | * added via "systemctl set-property" ("control"), but not if the drop-in is generated ("generated"). | |
2256 | * | |
2257 | * c) if there's a vendor unit file (i.e. one in /usr) we remove any configured overriding unit files (i.e. in | |
2258 | * "config", but not in "transient" or "control" or even "generated"). | |
2259 | * | |
4f25723c | 2260 | * We remove all that in both the runtime and the persistent directories, if that applies. |
344ca755 LP |
2261 | */ |
2262 | ||
2263 | r = lookup_paths_init(&paths, scope, 0, root_dir); | |
2264 | if (r < 0) | |
2265 | return r; | |
2266 | ||
2267 | STRV_FOREACH(i, files) { | |
2268 | bool has_vendor = false; | |
2269 | char **p; | |
2270 | ||
2271 | if (!unit_name_is_valid(*i, UNIT_NAME_ANY)) | |
2272 | return -EINVAL; | |
2273 | ||
2274 | STRV_FOREACH(p, paths.search_path) { | |
2275 | _cleanup_free_ char *path = NULL, *dropin = NULL; | |
2276 | struct stat st; | |
2277 | ||
2278 | path = path_make_absolute(*i, *p); | |
2279 | if (!path) | |
2280 | return -ENOMEM; | |
2281 | ||
2282 | r = lstat(path, &st); | |
2283 | if (r < 0) { | |
2284 | if (errno != ENOENT) | |
2285 | return -errno; | |
2286 | } else if (S_ISREG(st.st_mode)) { | |
2287 | /* Check if there's a vendor version */ | |
2288 | r = path_is_vendor(&paths, path); | |
2289 | if (r < 0) | |
2290 | return r; | |
2291 | if (r > 0) | |
2292 | has_vendor = true; | |
2293 | } | |
2294 | ||
2295 | dropin = strappend(path, ".d"); | |
2296 | if (!dropin) | |
2297 | return -ENOMEM; | |
2298 | ||
2299 | r = lstat(dropin, &st); | |
2300 | if (r < 0) { | |
2301 | if (errno != ENOENT) | |
2302 | return -errno; | |
2303 | } else if (S_ISDIR(st.st_mode)) { | |
2304 | /* Remove the drop-ins */ | |
2305 | r = path_shall_revert(&paths, dropin); | |
2306 | if (r < 0) | |
2307 | return r; | |
2308 | if (r > 0) { | |
2309 | if (!GREEDY_REALLOC0(todo, n_allocated, n_todo + 2)) | |
2310 | return -ENOMEM; | |
2311 | ||
2312 | todo[n_todo++] = dropin; | |
2313 | dropin = NULL; | |
2314 | } | |
2315 | } | |
2316 | } | |
2317 | ||
2318 | if (!has_vendor) | |
2319 | continue; | |
2320 | ||
2321 | /* OK, there's a vendor version, hence drop all configuration versions */ | |
2322 | STRV_FOREACH(p, paths.search_path) { | |
2323 | _cleanup_free_ char *path = NULL; | |
2324 | struct stat st; | |
2325 | ||
2326 | path = path_make_absolute(*i, *p); | |
2327 | if (!path) | |
2328 | return -ENOMEM; | |
2329 | ||
2330 | r = lstat(path, &st); | |
2331 | if (r < 0) { | |
2332 | if (errno != ENOENT) | |
2333 | return -errno; | |
2334 | } else if (S_ISREG(st.st_mode) || S_ISLNK(st.st_mode)) { | |
dfead90d | 2335 | r = path_is_config(&paths, path, true); |
344ca755 LP |
2336 | if (r < 0) |
2337 | return r; | |
2338 | if (r > 0) { | |
2339 | if (!GREEDY_REALLOC0(todo, n_allocated, n_todo + 2)) | |
2340 | return -ENOMEM; | |
2341 | ||
2342 | todo[n_todo++] = path; | |
2343 | path = NULL; | |
2344 | } | |
2345 | } | |
2346 | } | |
2347 | } | |
2348 | ||
2349 | strv_uniq(todo); | |
2350 | ||
2351 | r = 0; | |
2352 | STRV_FOREACH(i, todo) { | |
2353 | _cleanup_strv_free_ char **fs = NULL; | |
2354 | const char *rp; | |
2355 | char **j; | |
2356 | ||
2357 | (void) get_files_in_directory(*i, &fs); | |
2358 | ||
2359 | q = rm_rf(*i, REMOVE_ROOT|REMOVE_PHYSICAL); | |
2360 | if (q < 0 && q != -ENOENT && r >= 0) { | |
2361 | r = q; | |
2362 | continue; | |
2363 | } | |
2364 | ||
2365 | STRV_FOREACH(j, fs) { | |
2366 | _cleanup_free_ char *t = NULL; | |
2367 | ||
605405c6 | 2368 | t = strjoin(*i, "/", *j); |
344ca755 LP |
2369 | if (!t) |
2370 | return -ENOMEM; | |
2371 | ||
2372 | unit_file_changes_add(changes, n_changes, UNIT_FILE_UNLINK, t, NULL); | |
2373 | } | |
2374 | ||
2375 | unit_file_changes_add(changes, n_changes, UNIT_FILE_UNLINK, *i, NULL); | |
2376 | ||
2377 | rp = skip_root(&paths, *i); | |
2378 | q = mark_symlink_for_removal(&remove_symlinks_to, rp ?: *i); | |
2379 | if (q < 0) | |
2380 | return q; | |
2381 | } | |
2382 | ||
3b3557c4 | 2383 | q = remove_marked_symlinks(remove_symlinks_to, paths.runtime_config, &paths, false, changes, n_changes); |
344ca755 LP |
2384 | if (r >= 0) |
2385 | r = q; | |
2386 | ||
3b3557c4 | 2387 | q = remove_marked_symlinks(remove_symlinks_to, paths.persistent_config, &paths, false, changes, n_changes); |
344ca755 LP |
2388 | if (r >= 0) |
2389 | r = q; | |
2390 | ||
2391 | return r; | |
2392 | } | |
2393 | ||
0ec0deaa LP |
2394 | int unit_file_add_dependency( |
2395 | UnitFileScope scope, | |
b3796dd8 | 2396 | UnitFileFlags flags, |
0ec0deaa LP |
2397 | const char *root_dir, |
2398 | char **files, | |
2399 | const char *target, | |
2400 | UnitDependency dep, | |
0ec0deaa LP |
2401 | UnitFileChange **changes, |
2402 | unsigned *n_changes) { | |
2403 | ||
2404 | _cleanup_lookup_paths_free_ LookupPaths paths = {}; | |
2405 | _cleanup_(install_context_done) InstallContext c = {}; | |
0ec0deaa | 2406 | UnitFileInstallInfo *i, *target_info; |
e1c5c2b0 | 2407 | const char *config_path; |
0ec0deaa LP |
2408 | char **f; |
2409 | int r; | |
2410 | ||
2411 | assert(scope >= 0); | |
2412 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
2413 | assert(target); | |
2414 | ||
2415 | if (!IN_SET(dep, UNIT_WANTS, UNIT_REQUIRES)) | |
2416 | return -EINVAL; | |
2417 | ||
2418 | if (!unit_name_is_valid(target, UNIT_NAME_ANY)) | |
2419 | return -EINVAL; | |
2420 | ||
4943d143 | 2421 | r = lookup_paths_init(&paths, scope, 0, root_dir); |
0ec0deaa LP |
2422 | if (r < 0) |
2423 | return r; | |
2424 | ||
b3796dd8 | 2425 | config_path = (flags & UNIT_FILE_RUNTIME) ? paths.runtime_config : paths.persistent_config; |
d0fd66a3 LP |
2426 | if (!config_path) |
2427 | return -ENXIO; | |
0ec0deaa | 2428 | |
59108fbe ZJS |
2429 | r = install_info_discover(scope, &c, &paths, target, SEARCH_FOLLOW_CONFIG_SYMLINKS, |
2430 | &target_info, changes, n_changes); | |
0ec0deaa LP |
2431 | if (r < 0) |
2432 | return r; | |
af3d8113 | 2433 | r = install_info_may_process(target_info, &paths, changes, n_changes); |
76adb5b8 LP |
2434 | if (r < 0) |
2435 | return r; | |
0ec0deaa LP |
2436 | |
2437 | assert(target_info->type == UNIT_FILE_TYPE_REGULAR); | |
e94937df | 2438 | |
0ec0deaa LP |
2439 | STRV_FOREACH(f, files) { |
2440 | char ***l; | |
2441 | ||
59108fbe ZJS |
2442 | r = install_info_discover(scope, &c, &paths, *f, SEARCH_FOLLOW_CONFIG_SYMLINKS, |
2443 | &i, changes, n_changes); | |
e94937df LN |
2444 | if (r < 0) |
2445 | return r; | |
af3d8113 | 2446 | r = install_info_may_process(i, &paths, changes, n_changes); |
76adb5b8 LP |
2447 | if (r < 0) |
2448 | return r; | |
0ec0deaa LP |
2449 | |
2450 | assert(i->type == UNIT_FILE_TYPE_REGULAR); | |
2451 | ||
2452 | /* We didn't actually load anything from the unit | |
2453 | * file, but instead just add in our new symlink to | |
2454 | * create. */ | |
e94937df LN |
2455 | |
2456 | if (dep == UNIT_WANTS) | |
0ec0deaa | 2457 | l = &i->wanted_by; |
e94937df | 2458 | else |
0ec0deaa | 2459 | l = &i->required_by; |
e94937df | 2460 | |
0ec0deaa LP |
2461 | strv_free(*l); |
2462 | *l = strv_new(target_info->name, NULL); | |
2463 | if (!*l) | |
2464 | return -ENOMEM; | |
e94937df LN |
2465 | } |
2466 | ||
b3796dd8 | 2467 | return install_context_apply(scope, &c, &paths, config_path, !!(flags & UNIT_FILE_FORCE), SEARCH_FOLLOW_CONFIG_SYMLINKS, changes, n_changes); |
e94937df LN |
2468 | } |
2469 | ||
83096483 LP |
2470 | int unit_file_enable( |
2471 | UnitFileScope scope, | |
b3796dd8 | 2472 | UnitFileFlags flags, |
83096483 | 2473 | const char *root_dir, |
7195aa42 | 2474 | char **files, |
83096483 LP |
2475 | UnitFileChange **changes, |
2476 | unsigned *n_changes) { | |
2477 | ||
7fd1b19b | 2478 | _cleanup_lookup_paths_free_ LookupPaths paths = {}; |
59ccf93d | 2479 | _cleanup_(install_context_done) InstallContext c = {}; |
e1c5c2b0 | 2480 | const char *config_path; |
0ec0deaa LP |
2481 | UnitFileInstallInfo *i; |
2482 | char **f; | |
83096483 LP |
2483 | int r; |
2484 | ||
2485 | assert(scope >= 0); | |
2486 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
2487 | ||
4943d143 | 2488 | r = lookup_paths_init(&paths, scope, 0, root_dir); |
83096483 LP |
2489 | if (r < 0) |
2490 | return r; | |
2491 | ||
b3796dd8 | 2492 | config_path = (flags & UNIT_FILE_RUNTIME) ? paths.runtime_config : paths.persistent_config; |
d0fd66a3 LP |
2493 | if (!config_path) |
2494 | return -ENXIO; | |
83096483 | 2495 | |
0ec0deaa | 2496 | STRV_FOREACH(f, files) { |
59108fbe ZJS |
2497 | r = install_info_discover(scope, &c, &paths, *f, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS, |
2498 | &i, changes, n_changes); | |
83096483 | 2499 | if (r < 0) |
d9e5e694 | 2500 | return r; |
af3d8113 | 2501 | r = install_info_may_process(i, &paths, changes, n_changes); |
76adb5b8 LP |
2502 | if (r < 0) |
2503 | return r; | |
0ec0deaa LP |
2504 | |
2505 | assert(i->type == UNIT_FILE_TYPE_REGULAR); | |
83096483 LP |
2506 | } |
2507 | ||
729e3769 | 2508 | /* This will return the number of symlink rules that were |
d25e100b LP |
2509 | supposed to be created, not the ones actually created. This |
2510 | is useful to determine whether the passed files had any | |
2511 | installation data at all. */ | |
b91a3b02 | 2512 | |
b3796dd8 | 2513 | return install_context_apply(scope, &c, &paths, config_path, !!(flags & UNIT_FILE_FORCE), SEARCH_LOAD, changes, n_changes); |
83096483 LP |
2514 | } |
2515 | ||
2516 | int unit_file_disable( | |
2517 | UnitFileScope scope, | |
b3796dd8 | 2518 | UnitFileFlags flags, |
83096483 | 2519 | const char *root_dir, |
7195aa42 | 2520 | char **files, |
83096483 LP |
2521 | UnitFileChange **changes, |
2522 | unsigned *n_changes) { | |
2523 | ||
7fd1b19b | 2524 | _cleanup_lookup_paths_free_ LookupPaths paths = {}; |
59ccf93d | 2525 | _cleanup_(install_context_done) InstallContext c = {}; |
7fd1b19b | 2526 | _cleanup_set_free_free_ Set *remove_symlinks_to = NULL; |
e1c5c2b0 | 2527 | const char *config_path; |
0ec0deaa LP |
2528 | char **i; |
2529 | int r; | |
83096483 LP |
2530 | |
2531 | assert(scope >= 0); | |
2532 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
2533 | ||
4943d143 | 2534 | r = lookup_paths_init(&paths, scope, 0, root_dir); |
83096483 LP |
2535 | if (r < 0) |
2536 | return r; | |
2537 | ||
b3796dd8 | 2538 | config_path = (flags & UNIT_FILE_RUNTIME) ? paths.runtime_config : paths.persistent_config; |
d0fd66a3 LP |
2539 | if (!config_path) |
2540 | return -ENXIO; | |
83096483 LP |
2541 | |
2542 | STRV_FOREACH(i, files) { | |
0ec0deaa LP |
2543 | if (!unit_name_is_valid(*i, UNIT_NAME_ANY)) |
2544 | return -EINVAL; | |
2545 | ||
19539807 | 2546 | r = install_info_add(&c, *i, NULL, false, NULL); |
83096483 | 2547 | if (r < 0) |
d9e5e694 | 2548 | return r; |
83096483 LP |
2549 | } |
2550 | ||
637d6e5b | 2551 | r = install_context_mark_for_removal(scope, &c, &paths, &remove_symlinks_to, config_path, changes, n_changes); |
0ec0deaa LP |
2552 | if (r < 0) |
2553 | return r; | |
83096483 | 2554 | |
3b3557c4 | 2555 | return remove_marked_symlinks(remove_symlinks_to, config_path, &paths, !!(flags & UNIT_FILE_DRY_RUN), changes, n_changes); |
83096483 LP |
2556 | } |
2557 | ||
2558 | int unit_file_reenable( | |
2559 | UnitFileScope scope, | |
b3796dd8 | 2560 | UnitFileFlags flags, |
83096483 | 2561 | const char *root_dir, |
7195aa42 | 2562 | char **files, |
83096483 LP |
2563 | UnitFileChange **changes, |
2564 | unsigned *n_changes) { | |
0ec0deaa LP |
2565 | |
2566 | char **n; | |
92d430a9 | 2567 | int r; |
0ec0deaa | 2568 | size_t l, i; |
83096483 | 2569 | |
0ec0deaa LP |
2570 | /* First, we invoke the disable command with only the basename... */ |
2571 | l = strv_length(files); | |
2572 | n = newa(char*, l+1); | |
2573 | for (i = 0; i < l; i++) | |
2574 | n[i] = basename(files[i]); | |
2575 | n[i] = NULL; | |
2576 | ||
b3796dd8 | 2577 | r = unit_file_disable(scope, flags, root_dir, n, changes, n_changes); |
83096483 | 2578 | if (r < 0) |
d9e5e694 | 2579 | return r; |
83096483 | 2580 | |
0ec0deaa | 2581 | /* But the enable command with the full name */ |
b3796dd8 | 2582 | return unit_file_enable(scope, flags, root_dir, files, changes, n_changes); |
83096483 LP |
2583 | } |
2584 | ||
99504dd4 VP |
2585 | int unit_file_set_default( |
2586 | UnitFileScope scope, | |
b3796dd8 | 2587 | UnitFileFlags flags, |
99504dd4 | 2588 | const char *root_dir, |
0ec0deaa | 2589 | const char *name, |
99504dd4 VP |
2590 | UnitFileChange **changes, |
2591 | unsigned *n_changes) { | |
2592 | ||
2593 | _cleanup_lookup_paths_free_ LookupPaths paths = {}; | |
59ccf93d | 2594 | _cleanup_(install_context_done) InstallContext c = {}; |
0ec0deaa | 2595 | UnitFileInstallInfo *i; |
60bec8e4 | 2596 | const char *new_path; |
99504dd4 | 2597 | int r; |
99504dd4 VP |
2598 | |
2599 | assert(scope >= 0); | |
2600 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
0ec0deaa | 2601 | assert(name); |
99504dd4 | 2602 | |
401017e0 | 2603 | if (unit_name_to_type(name) != UNIT_TARGET) /* this also validates the name */ |
0ec0deaa LP |
2604 | return -EINVAL; |
2605 | if (streq(name, SPECIAL_DEFAULT_TARGET)) | |
99504dd4 VP |
2606 | return -EINVAL; |
2607 | ||
4943d143 | 2608 | r = lookup_paths_init(&paths, scope, 0, root_dir); |
99504dd4 VP |
2609 | if (r < 0) |
2610 | return r; | |
2611 | ||
59108fbe | 2612 | r = install_info_discover(scope, &c, &paths, name, 0, &i, changes, n_changes); |
99504dd4 VP |
2613 | if (r < 0) |
2614 | return r; | |
af3d8113 | 2615 | r = install_info_may_process(i, &paths, changes, n_changes); |
76adb5b8 LP |
2616 | if (r < 0) |
2617 | return r; | |
99504dd4 | 2618 | |
401017e0 | 2619 | new_path = strjoina(paths.persistent_config, "/" SPECIAL_DEFAULT_TARGET); |
b3796dd8 | 2620 | return create_symlink(&paths, i->path, new_path, !!(flags & UNIT_FILE_FORCE), changes, n_changes); |
99504dd4 VP |
2621 | } |
2622 | ||
2623 | int unit_file_get_default( | |
2624 | UnitFileScope scope, | |
2625 | const char *root_dir, | |
2626 | char **name) { | |
2627 | ||
2628 | _cleanup_lookup_paths_free_ LookupPaths paths = {}; | |
0ec0deaa LP |
2629 | _cleanup_(install_context_done) InstallContext c = {}; |
2630 | UnitFileInstallInfo *i; | |
2631 | char *n; | |
99504dd4 VP |
2632 | int r; |
2633 | ||
16ed0233 LP |
2634 | assert(scope >= 0); |
2635 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
2636 | assert(name); | |
2637 | ||
4943d143 | 2638 | r = lookup_paths_init(&paths, scope, 0, root_dir); |
0ec0deaa LP |
2639 | if (r < 0) |
2640 | return r; | |
99504dd4 | 2641 | |
59108fbe ZJS |
2642 | r = install_info_discover(scope, &c, &paths, SPECIAL_DEFAULT_TARGET, SEARCH_FOLLOW_CONFIG_SYMLINKS, |
2643 | &i, NULL, NULL); | |
0ec0deaa LP |
2644 | if (r < 0) |
2645 | return r; | |
af3d8113 | 2646 | r = install_info_may_process(i, &paths, NULL, 0); |
76adb5b8 LP |
2647 | if (r < 0) |
2648 | return r; | |
99504dd4 | 2649 | |
0ec0deaa LP |
2650 | n = strdup(i->name); |
2651 | if (!n) | |
2652 | return -ENOMEM; | |
99504dd4 | 2653 | |
0ec0deaa LP |
2654 | *name = n; |
2655 | return 0; | |
99504dd4 VP |
2656 | } |
2657 | ||
2c52204c | 2658 | static int unit_file_lookup_state( |
83096483 | 2659 | UnitFileScope scope, |
a8ffe6fb | 2660 | const LookupPaths *paths, |
0ec0deaa LP |
2661 | const char *name, |
2662 | UnitFileState *ret) { | |
83096483 | 2663 | |
0ec0deaa LP |
2664 | _cleanup_(install_context_done) InstallContext c = {}; |
2665 | UnitFileInstallInfo *i; | |
2666 | UnitFileState state; | |
2667 | int r; | |
83096483 | 2668 | |
a8ffe6fb | 2669 | assert(paths); |
0ec0deaa | 2670 | assert(name); |
83096483 | 2671 | |
7410616c | 2672 | if (!unit_name_is_valid(name, UNIT_NAME_ANY)) |
83096483 LP |
2673 | return -EINVAL; |
2674 | ||
59108fbe ZJS |
2675 | r = install_info_discover(scope, &c, paths, name, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS, |
2676 | &i, NULL, NULL); | |
0ec0deaa LP |
2677 | if (r < 0) |
2678 | return r; | |
83096483 | 2679 | |
0ec0deaa LP |
2680 | /* Shortcut things, if the caller just wants to know if this unit exists. */ |
2681 | if (!ret) | |
2682 | return 0; | |
83096483 | 2683 | |
0ec0deaa | 2684 | switch (i->type) { |
67820a0c | 2685 | |
0ec0deaa | 2686 | case UNIT_FILE_TYPE_MASKED: |
dfead90d | 2687 | r = path_is_runtime(paths, i->path, true); |
385eb996 LP |
2688 | if (r < 0) |
2689 | return r; | |
2690 | ||
2691 | state = r > 0 ? UNIT_FILE_MASKED_RUNTIME : UNIT_FILE_MASKED; | |
0ec0deaa | 2692 | break; |
83096483 | 2693 | |
0ec0deaa | 2694 | case UNIT_FILE_TYPE_REGULAR: |
f4dc1e65 | 2695 | r = path_is_generator(paths, i->path); |
f4139308 LP |
2696 | if (r < 0) |
2697 | return r; | |
2698 | if (r > 0) { | |
2699 | state = UNIT_FILE_GENERATED; | |
2700 | break; | |
2701 | } | |
2702 | ||
e4fca67f LP |
2703 | r = path_is_transient(paths, i->path); |
2704 | if (r < 0) | |
2705 | return r; | |
2706 | if (r > 0) { | |
2707 | state = UNIT_FILE_TRANSIENT; | |
2708 | break; | |
2709 | } | |
2710 | ||
5cd8ae31 ZJS |
2711 | /* Check if any of the Alias= symlinks have been created. |
2712 | * We ignore other aliases, and only check those that would | |
2713 | * be created by systemctl enable for this unit. */ | |
d2561cfd | 2714 | r = find_symlinks_in_scope(scope, paths, i, true, &state); |
d9b4b48f ZJS |
2715 | if (r < 0) |
2716 | return r; | |
2717 | if (r > 0) | |
2718 | break; | |
2719 | ||
2720 | /* Check if the file is known under other names. If it is, | |
2721 | * it might be in use. Report that as UNIT_FILE_INDIRECT. */ | |
d2561cfd | 2722 | r = find_symlinks_in_scope(scope, paths, i, false, &state); |
d9e5e694 ZJS |
2723 | if (r < 0) |
2724 | return r; | |
d9b4b48f ZJS |
2725 | if (r > 0) |
2726 | state = UNIT_FILE_INDIRECT; | |
2727 | else { | |
7a7ec2bf | 2728 | if (unit_file_install_info_has_rules(i)) |
0ec0deaa | 2729 | state = UNIT_FILE_DISABLED; |
7a7ec2bf | 2730 | else if (unit_file_install_info_has_also(i)) |
0ec0deaa LP |
2731 | state = UNIT_FILE_INDIRECT; |
2732 | else | |
2733 | state = UNIT_FILE_STATIC; | |
2734 | } | |
83096483 | 2735 | |
0ec0deaa LP |
2736 | break; |
2737 | ||
2738 | default: | |
2739 | assert_not_reached("Unexpect unit file type."); | |
83096483 LP |
2740 | } |
2741 | ||
0ec0deaa LP |
2742 | *ret = state; |
2743 | return 0; | |
83096483 LP |
2744 | } |
2745 | ||
0ec0deaa | 2746 | int unit_file_get_state( |
a8ffe6fb ZJS |
2747 | UnitFileScope scope, |
2748 | const char *root_dir, | |
0ec0deaa LP |
2749 | const char *name, |
2750 | UnitFileState *ret) { | |
a8ffe6fb ZJS |
2751 | |
2752 | _cleanup_lookup_paths_free_ LookupPaths paths = {}; | |
2753 | int r; | |
2754 | ||
2755 | assert(scope >= 0); | |
2756 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
2757 | assert(name); | |
2758 | ||
4943d143 | 2759 | r = lookup_paths_init(&paths, scope, 0, root_dir); |
a8ffe6fb ZJS |
2760 | if (r < 0) |
2761 | return r; | |
2762 | ||
e4bb56c7 | 2763 | return unit_file_lookup_state(scope, &paths, name, ret); |
a8ffe6fb ZJS |
2764 | } |
2765 | ||
e735decc LP |
2766 | int unit_file_exists(UnitFileScope scope, const LookupPaths *paths, const char *name) { |
2767 | _cleanup_(install_context_done) InstallContext c = {}; | |
2768 | int r; | |
2769 | ||
2770 | assert(paths); | |
2771 | assert(name); | |
2772 | ||
2773 | if (!unit_name_is_valid(name, UNIT_NAME_ANY)) | |
2774 | return -EINVAL; | |
2775 | ||
59108fbe | 2776 | r = install_info_discover(scope, &c, paths, name, 0, NULL, NULL, NULL); |
e735decc LP |
2777 | if (r == -ENOENT) |
2778 | return 0; | |
2779 | if (r < 0) | |
2780 | return r; | |
2781 | ||
2782 | return 1; | |
2783 | } | |
2784 | ||
8965d9f8 AC |
2785 | static int read_presets(UnitFileScope scope, const char *root_dir, Presets *presets) { |
2786 | _cleanup_(presets_freep) Presets ps = {}; | |
2787 | size_t n_allocated = 0; | |
7fd1b19b | 2788 | _cleanup_strv_free_ char **files = NULL; |
cba2ef02 | 2789 | char **p; |
83096483 LP |
2790 | int r; |
2791 | ||
2792 | assert(scope >= 0); | |
2793 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
8965d9f8 | 2794 | assert(presets); |
0ec0deaa | 2795 | |
83096483 | 2796 | if (scope == UNIT_FILE_SYSTEM) |
b5084605 | 2797 | r = conf_files_list(&files, ".preset", root_dir, 0, |
a7480dba LP |
2798 | "/etc/systemd/system-preset", |
2799 | "/usr/local/lib/systemd/system-preset", | |
2800 | "/usr/lib/systemd/system-preset", | |
349cc4a5 | 2801 | #if HAVE_SPLIT_USR |
a7480dba | 2802 | "/lib/systemd/system-preset", |
b4bdfefa | 2803 | #endif |
83096483 LP |
2804 | NULL); |
2805 | else if (scope == UNIT_FILE_GLOBAL) | |
b5084605 | 2806 | r = conf_files_list(&files, ".preset", root_dir, 0, |
a7480dba LP |
2807 | "/etc/systemd/user-preset", |
2808 | "/usr/local/lib/systemd/user-preset", | |
2809 | "/usr/lib/systemd/user-preset", | |
83096483 | 2810 | NULL); |
8965d9f8 AC |
2811 | else { |
2812 | *presets = (Presets){}; | |
2813 | ||
2814 | return 0; | |
2815 | } | |
83096483 LP |
2816 | |
2817 | if (r < 0) | |
2818 | return r; | |
2819 | ||
cba2ef02 | 2820 | STRV_FOREACH(p, files) { |
7fd1b19b | 2821 | _cleanup_fclose_ FILE *f; |
0ec0deaa | 2822 | char line[LINE_MAX]; |
d544d1a4 | 2823 | int n = 0; |
83096483 | 2824 | |
cba2ef02 | 2825 | f = fopen(*p, "re"); |
83096483 LP |
2826 | if (!f) { |
2827 | if (errno == ENOENT) | |
2828 | continue; | |
2829 | ||
d9e5e694 | 2830 | return -errno; |
83096483 LP |
2831 | } |
2832 | ||
0ec0deaa | 2833 | FOREACH_LINE(line, f, return -errno) { |
8965d9f8 | 2834 | PresetRule rule = {}; |
0ec0deaa LP |
2835 | const char *parameter; |
2836 | char *l; | |
83096483 LP |
2837 | |
2838 | l = strstrip(line); | |
d544d1a4 | 2839 | n++; |
83096483 | 2840 | |
0ec0deaa LP |
2841 | if (isempty(l)) |
2842 | continue; | |
2843 | if (strchr(COMMENTS, *l)) | |
83096483 LP |
2844 | continue; |
2845 | ||
0ec0deaa LP |
2846 | parameter = first_word(l, "enable"); |
2847 | if (parameter) { | |
8965d9f8 | 2848 | char *pattern; |
d9e5e694 | 2849 | |
8965d9f8 AC |
2850 | pattern = strdup(parameter); |
2851 | if (!pattern) | |
2852 | return -ENOMEM; | |
2853 | ||
2854 | rule = (PresetRule) { | |
2855 | .pattern = pattern, | |
2856 | .action = PRESET_ENABLE, | |
2857 | }; | |
0ec0deaa | 2858 | } |
83096483 | 2859 | |
0ec0deaa LP |
2860 | parameter = first_word(l, "disable"); |
2861 | if (parameter) { | |
8965d9f8 | 2862 | char *pattern; |
d9e5e694 | 2863 | |
8965d9f8 AC |
2864 | pattern = strdup(parameter); |
2865 | if (!pattern) | |
2866 | return -ENOMEM; | |
2867 | ||
2868 | rule = (PresetRule) { | |
2869 | .pattern = pattern, | |
2870 | .action = PRESET_DISABLE, | |
2871 | }; | |
2872 | } | |
2873 | ||
2874 | if (rule.action) { | |
2875 | if (!GREEDY_REALLOC(ps.rules, n_allocated, ps.n_rules + 1)) | |
2876 | return -ENOMEM; | |
2877 | ||
2878 | ps.rules[ps.n_rules++] = rule; | |
0ec0deaa LP |
2879 | continue; |
2880 | } | |
2881 | ||
d544d1a4 | 2882 | log_syntax(NULL, LOG_WARNING, *p, n, 0, "Couldn't parse line '%s'. Ignoring.", line); |
83096483 | 2883 | } |
83096483 LP |
2884 | } |
2885 | ||
8965d9f8 AC |
2886 | *presets = ps; |
2887 | ps = (Presets){}; | |
2888 | ||
2889 | return 0; | |
2890 | } | |
2891 | ||
2892 | static int query_presets(const char *name, const Presets presets) { | |
2893 | PresetAction action = PRESET_UNKNOWN; | |
2894 | size_t i; | |
2895 | ||
2896 | if (!unit_name_is_valid(name, UNIT_NAME_ANY)) | |
2897 | return -EINVAL; | |
2898 | ||
2899 | for (i = 0; i < presets.n_rules; i++) | |
2900 | if (fnmatch(presets.rules[i].pattern, name, FNM_NOESCAPE) == 0) { | |
2901 | action = presets.rules[i].action; | |
2902 | break; | |
2903 | } | |
2904 | ||
2905 | switch (action) { | |
2906 | case PRESET_UNKNOWN: | |
2907 | log_debug("Preset files don't specify rule for %s. Enabling.", name); | |
2908 | return 1; | |
2909 | case PRESET_ENABLE: | |
2910 | log_debug("Preset files say enable %s.", name); | |
2911 | return 1; | |
2912 | case PRESET_DISABLE: | |
2913 | log_debug("Preset files say disable %s.", name); | |
2914 | return 0; | |
2915 | default: | |
2916 | assert_not_reached("invalid preset action"); | |
2917 | } | |
2918 | } | |
2919 | ||
2920 | int unit_file_query_preset(UnitFileScope scope, const char *root_dir, const char *name) { | |
2921 | _cleanup_(presets_freep) Presets presets = {}; | |
2922 | int r; | |
2923 | ||
2924 | r = read_presets(scope, root_dir, &presets); | |
2925 | if (r < 0) | |
2926 | return r; | |
2927 | ||
2928 | return query_presets(name, presets); | |
83096483 LP |
2929 | } |
2930 | ||
0ec0deaa LP |
2931 | static int execute_preset( |
2932 | UnitFileScope scope, | |
2933 | InstallContext *plus, | |
2934 | InstallContext *minus, | |
2935 | const LookupPaths *paths, | |
2936 | const char *config_path, | |
0ec0deaa LP |
2937 | char **files, |
2938 | UnitFilePresetMode mode, | |
2939 | bool force, | |
2940 | UnitFileChange **changes, | |
2941 | unsigned *n_changes) { | |
2942 | ||
2943 | int r; | |
2944 | ||
2945 | assert(plus); | |
2946 | assert(minus); | |
2947 | assert(paths); | |
2948 | assert(config_path); | |
2949 | ||
2950 | if (mode != UNIT_FILE_PRESET_ENABLE_ONLY) { | |
2951 | _cleanup_set_free_free_ Set *remove_symlinks_to = NULL; | |
2952 | ||
637d6e5b | 2953 | r = install_context_mark_for_removal(scope, minus, paths, &remove_symlinks_to, config_path, changes, n_changes); |
0ec0deaa LP |
2954 | if (r < 0) |
2955 | return r; | |
2956 | ||
3b3557c4 | 2957 | r = remove_marked_symlinks(remove_symlinks_to, config_path, paths, false, changes, n_changes); |
0ec0deaa LP |
2958 | } else |
2959 | r = 0; | |
2960 | ||
2961 | if (mode != UNIT_FILE_PRESET_DISABLE_ONLY) { | |
2962 | int q; | |
2963 | ||
2964 | /* Returns number of symlinks that where supposed to be installed. */ | |
e4bb56c7 | 2965 | q = install_context_apply(scope, plus, paths, config_path, force, SEARCH_LOAD, changes, n_changes); |
0ec0deaa LP |
2966 | if (r >= 0) { |
2967 | if (q < 0) | |
2968 | r = q; | |
2969 | else | |
596fc263 | 2970 | r += q; |
0ec0deaa LP |
2971 | } |
2972 | } | |
2973 | ||
2974 | return r; | |
2975 | } | |
2976 | ||
2977 | static int preset_prepare_one( | |
2978 | UnitFileScope scope, | |
2979 | InstallContext *plus, | |
2980 | InstallContext *minus, | |
2981 | LookupPaths *paths, | |
af3d8113 | 2982 | const char *name, |
8965d9f8 | 2983 | Presets presets, |
af3d8113 ZJS |
2984 | UnitFileChange **changes, |
2985 | unsigned *n_changes) { | |
0ec0deaa | 2986 | |
11e11fd5 | 2987 | _cleanup_(install_context_done) InstallContext tmp = {}; |
0ec0deaa LP |
2988 | UnitFileInstallInfo *i; |
2989 | int r; | |
2990 | ||
11e11fd5 | 2991 | if (install_info_find(plus, name) || install_info_find(minus, name)) |
0ec0deaa LP |
2992 | return 0; |
2993 | ||
59108fbe ZJS |
2994 | r = install_info_discover(scope, &tmp, paths, name, SEARCH_FOLLOW_CONFIG_SYMLINKS, |
2995 | &i, changes, n_changes); | |
11e11fd5 ZJS |
2996 | if (r < 0) |
2997 | return r; | |
2998 | if (!streq(name, i->name)) { | |
10d67460 | 2999 | log_debug("Skipping %s because it is an alias for %s.", name, i->name); |
11e11fd5 ZJS |
3000 | return 0; |
3001 | } | |
3002 | ||
8965d9f8 | 3003 | r = query_presets(name, presets); |
0ec0deaa LP |
3004 | if (r < 0) |
3005 | return r; | |
3006 | ||
3007 | if (r > 0) { | |
59108fbe ZJS |
3008 | r = install_info_discover(scope, plus, paths, name, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS, |
3009 | &i, changes, n_changes); | |
0ec0deaa LP |
3010 | if (r < 0) |
3011 | return r; | |
3012 | ||
af3d8113 | 3013 | r = install_info_may_process(i, paths, changes, n_changes); |
76adb5b8 LP |
3014 | if (r < 0) |
3015 | return r; | |
0ec0deaa | 3016 | } else |
59108fbe ZJS |
3017 | r = install_info_discover(scope, minus, paths, name, SEARCH_FOLLOW_CONFIG_SYMLINKS, |
3018 | &i, changes, n_changes); | |
0ec0deaa LP |
3019 | |
3020 | return r; | |
3021 | } | |
3022 | ||
83096483 LP |
3023 | int unit_file_preset( |
3024 | UnitFileScope scope, | |
b3796dd8 | 3025 | UnitFileFlags flags, |
83096483 | 3026 | const char *root_dir, |
7195aa42 | 3027 | char **files, |
d309c1c3 | 3028 | UnitFilePresetMode mode, |
83096483 LP |
3029 | UnitFileChange **changes, |
3030 | unsigned *n_changes) { | |
3031 | ||
59ccf93d | 3032 | _cleanup_(install_context_done) InstallContext plus = {}, minus = {}; |
da39f6a6 | 3033 | _cleanup_lookup_paths_free_ LookupPaths paths = {}; |
8965d9f8 | 3034 | _cleanup_(presets_freep) Presets presets = {}; |
e1c5c2b0 | 3035 | const char *config_path; |
da39f6a6 | 3036 | char **i; |
0ec0deaa | 3037 | int r; |
83096483 LP |
3038 | |
3039 | assert(scope >= 0); | |
3040 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
86bbe5bf | 3041 | assert(mode < _UNIT_FILE_PRESET_MAX); |
83096483 | 3042 | |
4943d143 | 3043 | r = lookup_paths_init(&paths, scope, 0, root_dir); |
83096483 LP |
3044 | if (r < 0) |
3045 | return r; | |
3046 | ||
b3796dd8 | 3047 | config_path = (flags & UNIT_FILE_RUNTIME) ? paths.runtime_config : paths.persistent_config; |
d0fd66a3 LP |
3048 | if (!config_path) |
3049 | return -ENXIO; | |
83096483 | 3050 | |
8965d9f8 AC |
3051 | r = read_presets(scope, root_dir, &presets); |
3052 | if (r < 0) | |
3053 | return r; | |
83096483 | 3054 | |
8965d9f8 | 3055 | STRV_FOREACH(i, files) { |
ff56349d | 3056 | r = preset_prepare_one(scope, &plus, &minus, &paths, *i, presets, changes, n_changes); |
83096483 | 3057 | if (r < 0) |
d9e5e694 | 3058 | return r; |
83096483 LP |
3059 | } |
3060 | ||
b3796dd8 | 3061 | return execute_preset(scope, &plus, &minus, &paths, config_path, files, mode, !!(flags & UNIT_FILE_FORCE), changes, n_changes); |
d309c1c3 LP |
3062 | } |
3063 | ||
3064 | int unit_file_preset_all( | |
3065 | UnitFileScope scope, | |
b3796dd8 | 3066 | UnitFileFlags flags, |
d309c1c3 LP |
3067 | const char *root_dir, |
3068 | UnitFilePresetMode mode, | |
d309c1c3 LP |
3069 | UnitFileChange **changes, |
3070 | unsigned *n_changes) { | |
3071 | ||
59ccf93d | 3072 | _cleanup_(install_context_done) InstallContext plus = {}, minus = {}; |
d309c1c3 | 3073 | _cleanup_lookup_paths_free_ LookupPaths paths = {}; |
8965d9f8 | 3074 | _cleanup_(presets_freep) Presets presets = {}; |
e1c5c2b0 | 3075 | const char *config_path = NULL; |
d309c1c3 | 3076 | char **i; |
0ec0deaa | 3077 | int r; |
d309c1c3 LP |
3078 | |
3079 | assert(scope >= 0); | |
3080 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
86bbe5bf | 3081 | assert(mode < _UNIT_FILE_PRESET_MAX); |
d309c1c3 | 3082 | |
4943d143 | 3083 | r = lookup_paths_init(&paths, scope, 0, root_dir); |
d309c1c3 LP |
3084 | if (r < 0) |
3085 | return r; | |
3086 | ||
b3796dd8 | 3087 | config_path = (flags & UNIT_FILE_RUNTIME) ? paths.runtime_config : paths.persistent_config; |
d0fd66a3 LP |
3088 | if (!config_path) |
3089 | return -ENXIO; | |
d309c1c3 | 3090 | |
8965d9f8 AC |
3091 | r = read_presets(scope, root_dir, &presets); |
3092 | if (r < 0) | |
3093 | return r; | |
3094 | ||
a3c4eb07 | 3095 | STRV_FOREACH(i, paths.search_path) { |
d309c1c3 | 3096 | _cleanup_closedir_ DIR *d = NULL; |
d25e100b | 3097 | struct dirent *de; |
d309c1c3 | 3098 | |
401017e0 | 3099 | d = opendir(*i); |
d309c1c3 LP |
3100 | if (!d) { |
3101 | if (errno == ENOENT) | |
3102 | continue; | |
3103 | ||
3104 | return -errno; | |
3105 | } | |
3106 | ||
d25e100b | 3107 | FOREACH_DIRENT(de, d, return -errno) { |
d309c1c3 | 3108 | |
7410616c | 3109 | if (!unit_name_is_valid(de->d_name, UNIT_NAME_ANY)) |
d309c1c3 LP |
3110 | continue; |
3111 | ||
3112 | dirent_ensure_type(d, de); | |
3113 | ||
0ec0deaa | 3114 | if (!IN_SET(de->d_type, DT_LNK, DT_REG)) |
d309c1c3 LP |
3115 | continue; |
3116 | ||
af3d8113 | 3117 | /* we don't pass changes[] in, because we want to handle errors on our own */ |
ff56349d | 3118 | r = preset_prepare_one(scope, &plus, &minus, &paths, de->d_name, presets, NULL, 0); |
9a0a413a ZJS |
3119 | if (r == -ERFKILL) |
3120 | r = unit_file_changes_add(changes, n_changes, | |
3121 | UNIT_FILE_IS_MASKED, de->d_name, NULL); | |
893275df ZJS |
3122 | else if (r == -ENOLINK) |
3123 | r = unit_file_changes_add(changes, n_changes, | |
3124 | UNIT_FILE_IS_DANGLING, de->d_name, NULL); | |
26421228 LP |
3125 | else if (r == -EADDRNOTAVAIL) /* Ignore generated/transient units when applying preset */ |
3126 | continue; | |
d309c1c3 LP |
3127 | if (r < 0) |
3128 | return r; | |
3129 | } | |
3130 | } | |
3131 | ||
b3796dd8 | 3132 | return execute_preset(scope, &plus, &minus, &paths, config_path, NULL, mode, !!(flags & UNIT_FILE_FORCE), changes, n_changes); |
83096483 LP |
3133 | } |
3134 | ||
59ccf93d LP |
3135 | static void unit_file_list_free_one(UnitFileList *f) { |
3136 | if (!f) | |
d9e5e694 ZJS |
3137 | return; |
3138 | ||
59ccf93d LP |
3139 | free(f->path); |
3140 | free(f); | |
d9e5e694 | 3141 | } |
59ccf93d | 3142 | |
0ec0deaa LP |
3143 | Hashmap* unit_file_list_free(Hashmap *h) { |
3144 | UnitFileList *i; | |
3145 | ||
3146 | while ((i = hashmap_steal_first(h))) | |
3147 | unit_file_list_free_one(i); | |
3148 | ||
3149 | return hashmap_free(h); | |
3150 | } | |
3151 | ||
59ccf93d | 3152 | DEFINE_TRIVIAL_CLEANUP_FUNC(UnitFileList*, unit_file_list_free_one); |
d9e5e694 | 3153 | |
83096483 LP |
3154 | int unit_file_get_list( |
3155 | UnitFileScope scope, | |
3156 | const char *root_dir, | |
313fe66f | 3157 | Hashmap *h, |
3158 | char **states, | |
3159 | char **patterns) { | |
83096483 | 3160 | |
7fd1b19b | 3161 | _cleanup_lookup_paths_free_ LookupPaths paths = {}; |
d9e5e694 | 3162 | char **i; |
83096483 LP |
3163 | int r; |
3164 | ||
3165 | assert(scope >= 0); | |
3166 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
3167 | assert(h); | |
3168 | ||
4943d143 | 3169 | r = lookup_paths_init(&paths, scope, 0, root_dir); |
83096483 LP |
3170 | if (r < 0) |
3171 | return r; | |
3172 | ||
a3c4eb07 | 3173 | STRV_FOREACH(i, paths.search_path) { |
da39f6a6 | 3174 | _cleanup_closedir_ DIR *d = NULL; |
d25e100b | 3175 | struct dirent *de; |
83096483 | 3176 | |
401017e0 | 3177 | d = opendir(*i); |
83096483 LP |
3178 | if (!d) { |
3179 | if (errno == ENOENT) | |
3180 | continue; | |
a1feacf7 | 3181 | if (IN_SET(errno, ENOTDIR, EACCES)) { |
25f027c5 | 3182 | log_debug_errno(errno, "Failed to open \"%s\": %m", *i); |
a1feacf7 ZJS |
3183 | continue; |
3184 | } | |
83096483 | 3185 | |
d9e5e694 | 3186 | return -errno; |
83096483 LP |
3187 | } |
3188 | ||
d25e100b | 3189 | FOREACH_DIRENT(de, d, return -errno) { |
59ccf93d | 3190 | _cleanup_(unit_file_list_free_onep) UnitFileList *f = NULL; |
83096483 | 3191 | |
7410616c | 3192 | if (!unit_name_is_valid(de->d_name, UNIT_NAME_ANY)) |
83096483 LP |
3193 | continue; |
3194 | ||
313fe66f | 3195 | if (!strv_fnmatch_or_empty(patterns, de->d_name, FNM_NOESCAPE)) |
3196 | continue; | |
3197 | ||
83096483 LP |
3198 | if (hashmap_get(h, de->d_name)) |
3199 | continue; | |
3200 | ||
da39f6a6 | 3201 | dirent_ensure_type(d, de); |
83096483 | 3202 | |
da39f6a6 | 3203 | if (!IN_SET(de->d_type, DT_LNK, DT_REG)) |
83096483 LP |
3204 | continue; |
3205 | ||
3206 | f = new0(UnitFileList, 1); | |
d9e5e694 ZJS |
3207 | if (!f) |
3208 | return -ENOMEM; | |
83096483 | 3209 | |
401017e0 | 3210 | f->path = path_make_absolute(de->d_name, *i); |
d9e5e694 ZJS |
3211 | if (!f->path) |
3212 | return -ENOMEM; | |
83096483 | 3213 | |
401017e0 | 3214 | r = unit_file_lookup_state(scope, &paths, de->d_name, &f->state); |
d9e5e694 | 3215 | if (r < 0) |
0ec0deaa | 3216 | f->state = UNIT_FILE_BAD; |
81fc054d | 3217 | |
313fe66f | 3218 | if (!strv_isempty(states) && |
3219 | !strv_contains(states, unit_file_state_to_string(f->state))) | |
3220 | continue; | |
3221 | ||
2b6bf07d | 3222 | r = hashmap_put(h, basename(f->path), f); |
d9e5e694 ZJS |
3223 | if (r < 0) |
3224 | return r; | |
0ec0deaa | 3225 | |
d9e5e694 | 3226 | f = NULL; /* prevent cleanup */ |
83096483 LP |
3227 | } |
3228 | } | |
3229 | ||
77cd2c87 | 3230 | return 0; |
83096483 LP |
3231 | } |
3232 | ||
3233 | static const char* const unit_file_state_table[_UNIT_FILE_STATE_MAX] = { | |
3234 | [UNIT_FILE_ENABLED] = "enabled", | |
771faa9a | 3235 | [UNIT_FILE_ENABLED_RUNTIME] = "enabled-runtime", |
83096483 LP |
3236 | [UNIT_FILE_LINKED] = "linked", |
3237 | [UNIT_FILE_LINKED_RUNTIME] = "linked-runtime", | |
3238 | [UNIT_FILE_MASKED] = "masked", | |
3239 | [UNIT_FILE_MASKED_RUNTIME] = "masked-runtime", | |
3240 | [UNIT_FILE_STATIC] = "static", | |
b5b46d59 | 3241 | [UNIT_FILE_DISABLED] = "disabled", |
aedd4012 | 3242 | [UNIT_FILE_INDIRECT] = "indirect", |
f4139308 | 3243 | [UNIT_FILE_GENERATED] = "generated", |
e4fca67f | 3244 | [UNIT_FILE_TRANSIENT] = "transient", |
0ec0deaa | 3245 | [UNIT_FILE_BAD] = "bad", |
83096483 LP |
3246 | }; |
3247 | ||
3248 | DEFINE_STRING_TABLE_LOOKUP(unit_file_state, UnitFileState); | |
c0576cd6 LP |
3249 | |
3250 | static const char* const unit_file_change_type_table[_UNIT_FILE_CHANGE_TYPE_MAX] = { | |
3251 | [UNIT_FILE_SYMLINK] = "symlink", | |
3252 | [UNIT_FILE_UNLINK] = "unlink", | |
9a0a413a | 3253 | [UNIT_FILE_IS_MASKED] = "masked", |
893275df | 3254 | [UNIT_FILE_IS_DANGLING] = "dangling", |
c0576cd6 LP |
3255 | }; |
3256 | ||
3257 | DEFINE_STRING_TABLE_LOOKUP(unit_file_change_type, UnitFileChangeType); | |
d309c1c3 | 3258 | |
86bbe5bf | 3259 | static const char* const unit_file_preset_mode_table[_UNIT_FILE_PRESET_MAX] = { |
d309c1c3 LP |
3260 | [UNIT_FILE_PRESET_FULL] = "full", |
3261 | [UNIT_FILE_PRESET_ENABLE_ONLY] = "enable-only", | |
3262 | [UNIT_FILE_PRESET_DISABLE_ONLY] = "disable-only", | |
3263 | }; | |
3264 | ||
3265 | DEFINE_STRING_TABLE_LOOKUP(unit_file_preset_mode, UnitFilePresetMode); |