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