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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
83096483 LP |
2 | /*** |
3 | This file is part of systemd. | |
4 | ||
5 | Copyright 2011 Lennart Poettering | |
83096483 LP |
6 | ***/ |
7 | ||
a8fbdf54 | 8 | #include <dirent.h> |
83096483 LP |
9 | #include <errno.h> |
10 | #include <fcntl.h> | |
83096483 | 11 | #include <fnmatch.h> |
a8fbdf54 TA |
12 | #include <limits.h> |
13 | #include <stddef.h> | |
14 | #include <stdio.h> | |
15 | #include <stdlib.h> | |
07630cea | 16 | #include <string.h> |
a8fbdf54 | 17 | #include <sys/stat.h> |
07630cea | 18 | #include <unistd.h> |
83096483 | 19 | |
b5efdb8a | 20 | #include "alloc-util.h" |
07630cea LP |
21 | #include "conf-files.h" |
22 | #include "conf-parser.h" | |
a0956174 | 23 | #include "dirent-util.h" |
a8fbdf54 | 24 | #include "extract-word.h" |
a0956174 | 25 | #include "fd-util.h" |
0ec0deaa | 26 | #include "fileio.h" |
f4f15635 | 27 | #include "fs-util.h" |
83096483 | 28 | #include "hashmap.h" |
07630cea | 29 | #include "install-printf.h" |
a0956174 | 30 | #include "install.h" |
a760db24 | 31 | #include "locale-util.h" |
a8fbdf54 TA |
32 | #include "log.h" |
33 | #include "macro.h" | |
07630cea | 34 | #include "mkdir.h" |
83096483 | 35 | #include "path-lookup.h" |
07630cea | 36 | #include "path-util.h" |
344ca755 | 37 | #include "rm-rf.h" |
07630cea LP |
38 | #include "set.h" |
39 | #include "special.h" | |
8fcde012 | 40 | #include "stat-util.h" |
8b43440b | 41 | #include "string-table.h" |
07630cea | 42 | #include "string-util.h" |
83096483 LP |
43 | #include "strv.h" |
44 | #include "unit-name.h" | |
83096483 | 45 | |
0ec0deaa LP |
46 | #define UNIT_FILE_FOLLOW_SYMLINK_MAX 64 |
47 | ||
48 | typedef enum SearchFlags { | |
d04a9386 LP |
49 | SEARCH_LOAD = 1U << 0, |
50 | SEARCH_FOLLOW_CONFIG_SYMLINKS = 1U << 1, | |
51 | SEARCH_DROPIN = 1U << 2, | |
0ec0deaa LP |
52 | } SearchFlags; |
53 | ||
83096483 | 54 | typedef struct { |
0ec0deaa LP |
55 | OrderedHashmap *will_process; |
56 | OrderedHashmap *have_processed; | |
83096483 LP |
57 | } InstallContext; |
58 | ||
8965d9f8 AC |
59 | typedef enum { |
60 | PRESET_UNKNOWN, | |
61 | PRESET_ENABLE, | |
62 | PRESET_DISABLE, | |
63 | } PresetAction; | |
64 | ||
65 | typedef struct { | |
66 | char *pattern; | |
67 | PresetAction action; | |
68 | } PresetRule; | |
69 | ||
70 | typedef struct { | |
71 | PresetRule *rules; | |
72 | size_t n_rules; | |
73 | } Presets; | |
74 | ||
7a7ec2bf ZJS |
75 | static inline bool unit_file_install_info_has_rules(UnitFileInstallInfo *i) { |
76 | assert(i); | |
77 | ||
78 | return !strv_isempty(i->aliases) || | |
79 | !strv_isempty(i->wanted_by) || | |
80 | !strv_isempty(i->required_by); | |
81 | } | |
82 | ||
83 | static inline bool unit_file_install_info_has_also(UnitFileInstallInfo *i) { | |
84 | assert(i); | |
85 | ||
86 | return !strv_isempty(i->also); | |
87 | } | |
88 | ||
8965d9f8 AC |
89 | static inline void presets_freep(Presets *p) { |
90 | size_t i; | |
91 | ||
92 | if (!p) | |
93 | return; | |
94 | ||
95 | for (i = 0; i < p->n_rules; i++) | |
96 | free(p->rules[i].pattern); | |
97 | ||
98 | free(p->rules); | |
99 | p->n_rules = 0; | |
100 | } | |
101 | ||
8a993b61 ZJS |
102 | bool unit_type_may_alias(UnitType type) { |
103 | return IN_SET(type, | |
104 | UNIT_SERVICE, | |
105 | UNIT_SOCKET, | |
106 | UNIT_TARGET, | |
107 | UNIT_DEVICE, | |
108 | UNIT_TIMER, | |
109 | UNIT_PATH); | |
110 | } | |
111 | ||
ce99c68a ZJS |
112 | bool unit_type_may_template(UnitType type) { |
113 | return IN_SET(type, | |
114 | UNIT_SERVICE, | |
115 | UNIT_SOCKET, | |
116 | UNIT_TARGET, | |
117 | UNIT_TIMER, | |
118 | UNIT_PATH); | |
119 | } | |
120 | ||
64f9280e ZJS |
121 | static const char *unit_file_type_table[_UNIT_FILE_TYPE_MAX] = { |
122 | [UNIT_FILE_TYPE_REGULAR] = "regular", | |
123 | [UNIT_FILE_TYPE_SYMLINK] = "symlink", | |
124 | [UNIT_FILE_TYPE_MASKED] = "masked", | |
125 | }; | |
126 | ||
127 | DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(unit_file_type, UnitFileType); | |
128 | ||
32c0ed7b | 129 | static int in_search_path(const LookupPaths *p, const char *path) { |
8f294b45 | 130 | _cleanup_free_ char *parent = NULL; |
0ec0deaa | 131 | char **i; |
8f294b45 LP |
132 | |
133 | assert(path); | |
134 | ||
5f311f8c LP |
135 | parent = dirname_malloc(path); |
136 | if (!parent) | |
137 | return -ENOMEM; | |
8f294b45 | 138 | |
32c0ed7b | 139 | STRV_FOREACH(i, p->search_path) |
0ec0deaa LP |
140 | if (path_equal(parent, *i)) |
141 | return true; | |
142 | ||
143 | return false; | |
8f294b45 LP |
144 | } |
145 | ||
401017e0 | 146 | static const char* skip_root(const LookupPaths *p, const char *path) { |
8f9364f9 | 147 | char *e; |
401017e0 | 148 | |
8f9364f9 LP |
149 | assert(p); |
150 | assert(path); | |
401017e0 | 151 | |
8f9364f9 LP |
152 | if (!p->root_dir) |
153 | return path; | |
401017e0 | 154 | |
8f9364f9 LP |
155 | e = path_startswith(path, p->root_dir); |
156 | if (!e) | |
157 | return NULL; | |
158 | ||
159 | /* Make sure the returned path starts with a slash */ | |
160 | if (e[0] != '/') { | |
161 | if (e == path || e[-1] != '/') | |
162 | return NULL; | |
401017e0 | 163 | |
8f9364f9 | 164 | e--; |
401017e0 LP |
165 | } |
166 | ||
8f9364f9 | 167 | return e; |
401017e0 LP |
168 | } |
169 | ||
f4dc1e65 | 170 | static int path_is_generator(const LookupPaths *p, const char *path) { |
f4139308 LP |
171 | _cleanup_free_ char *parent = NULL; |
172 | ||
e1c5c2b0 | 173 | assert(p); |
f4139308 LP |
174 | assert(path); |
175 | ||
176 | parent = dirname_malloc(path); | |
177 | if (!parent) | |
178 | return -ENOMEM; | |
179 | ||
24737c29 ZJS |
180 | return path_equal_ptr(parent, p->generator) || |
181 | path_equal_ptr(parent, p->generator_early) || | |
182 | path_equal_ptr(parent, p->generator_late); | |
f4139308 LP |
183 | } |
184 | ||
e4fca67f LP |
185 | static int path_is_transient(const LookupPaths *p, const char *path) { |
186 | _cleanup_free_ char *parent = NULL; | |
187 | ||
188 | assert(p); | |
189 | assert(path); | |
190 | ||
191 | parent = dirname_malloc(path); | |
192 | if (!parent) | |
193 | return -ENOMEM; | |
194 | ||
24737c29 | 195 | return path_equal_ptr(parent, p->transient); |
e4fca67f LP |
196 | } |
197 | ||
344ca755 | 198 | static int path_is_control(const LookupPaths *p, const char *path) { |
e1c5c2b0 | 199 | _cleanup_free_ char *parent = NULL; |
0ec0deaa | 200 | |
e1c5c2b0 | 201 | assert(p); |
0ec0deaa LP |
202 | assert(path); |
203 | ||
344ca755 LP |
204 | parent = dirname_malloc(path); |
205 | if (!parent) | |
206 | return -ENOMEM; | |
0ec0deaa | 207 | |
24737c29 ZJS |
208 | return path_equal_ptr(parent, p->persistent_control) || |
209 | path_equal_ptr(parent, p->runtime_control); | |
344ca755 LP |
210 | } |
211 | ||
dfead90d | 212 | static int path_is_config(const LookupPaths *p, const char *path, bool check_parent) { |
344ca755 LP |
213 | _cleanup_free_ char *parent = NULL; |
214 | ||
215 | assert(p); | |
216 | assert(path); | |
217 | ||
d7604756 ZJS |
218 | /* Note that we do *not* have generic checks for /etc or /run in place, since with |
219 | * them we couldn't discern configuration from transient or generated units */ | |
0ec0deaa | 220 | |
dfead90d LP |
221 | if (check_parent) { |
222 | parent = dirname_malloc(path); | |
223 | if (!parent) | |
224 | return -ENOMEM; | |
225 | ||
226 | path = parent; | |
227 | } | |
0ec0deaa | 228 | |
dfead90d LP |
229 | return path_equal_ptr(path, p->persistent_config) || |
230 | path_equal_ptr(path, p->runtime_config); | |
0ec0deaa LP |
231 | } |
232 | ||
dfead90d | 233 | static int path_is_runtime(const LookupPaths *p, const char *path, bool check_parent) { |
385eb996 | 234 | _cleanup_free_ char *parent = NULL; |
401017e0 | 235 | const char *rpath; |
385eb996 LP |
236 | |
237 | assert(p); | |
238 | assert(path); | |
239 | ||
d7604756 ZJS |
240 | /* Everything in /run is considered runtime. On top of that we also add |
241 | * explicit checks for the various runtime directories, as safety net. */ | |
344ca755 | 242 | |
401017e0 LP |
243 | rpath = skip_root(p, path); |
244 | if (rpath && path_startswith(rpath, "/run")) | |
385eb996 LP |
245 | return true; |
246 | ||
dfead90d LP |
247 | if (check_parent) { |
248 | parent = dirname_malloc(path); | |
249 | if (!parent) | |
250 | return -ENOMEM; | |
385eb996 | 251 | |
dfead90d LP |
252 | path = parent; |
253 | } | |
254 | ||
255 | return path_equal_ptr(path, p->runtime_config) || | |
256 | path_equal_ptr(path, p->generator) || | |
257 | path_equal_ptr(path, p->generator_early) || | |
258 | path_equal_ptr(path, p->generator_late) || | |
259 | path_equal_ptr(path, p->transient) || | |
260 | path_equal_ptr(path, p->runtime_control); | |
344ca755 LP |
261 | } |
262 | ||
263 | static int path_is_vendor(const LookupPaths *p, const char *path) { | |
264 | const char *rpath; | |
265 | ||
266 | assert(p); | |
267 | assert(path); | |
268 | ||
269 | rpath = skip_root(p, path); | |
270 | if (!rpath) | |
271 | return 0; | |
272 | ||
273 | if (path_startswith(rpath, "/usr")) | |
274 | return true; | |
275 | ||
349cc4a5 | 276 | #if HAVE_SPLIT_USR |
344ca755 LP |
277 | if (path_startswith(rpath, "/lib")) |
278 | return true; | |
279 | #endif | |
280 | ||
281 | return path_equal(rpath, SYSTEM_DATA_UNIT_PATH); | |
385eb996 LP |
282 | } |
283 | ||
0ec0deaa LP |
284 | int unit_file_changes_add( |
285 | UnitFileChange **changes, | |
da6053d0 | 286 | size_t *n_changes, |
0ec0deaa LP |
287 | UnitFileChangeType type, |
288 | const char *path, | |
289 | const char *source) { | |
290 | ||
12bf0ae4 | 291 | _cleanup_free_ char *p = NULL, *s = NULL; |
0ec0deaa | 292 | UnitFileChange *c; |
0ec0deaa LP |
293 | |
294 | assert(path); | |
295 | assert(!changes == !n_changes); | |
296 | ||
297 | if (!changes) | |
298 | return 0; | |
299 | ||
62d74c78 | 300 | c = reallocarray(*changes, *n_changes + 1, sizeof(UnitFileChange)); |
0ec0deaa LP |
301 | if (!c) |
302 | return -ENOMEM; | |
0ec0deaa | 303 | *changes = c; |
0ec0deaa | 304 | |
12bf0ae4 ZJS |
305 | p = strdup(path); |
306 | if (source) | |
307 | s = strdup(source); | |
0ec0deaa | 308 | |
12bf0ae4 ZJS |
309 | if (!p || (source && !s)) |
310 | return -ENOMEM; | |
0ec0deaa | 311 | |
858d36c1 | 312 | path_simplify(p, false); |
12bf0ae4 | 313 | if (s) |
858d36c1 | 314 | path_simplify(s, false); |
0ec0deaa | 315 | |
12bf0ae4 ZJS |
316 | c[*n_changes] = (UnitFileChange) { type, p, s }; |
317 | p = s = NULL; | |
318 | (*n_changes) ++; | |
0ec0deaa LP |
319 | return 0; |
320 | } | |
321 | ||
da6053d0 LP |
322 | void unit_file_changes_free(UnitFileChange *changes, size_t n_changes) { |
323 | size_t i; | |
0ec0deaa LP |
324 | |
325 | assert(changes || n_changes == 0); | |
326 | ||
0ec0deaa LP |
327 | for (i = 0; i < n_changes; i++) { |
328 | free(changes[i].path); | |
329 | free(changes[i].source); | |
330 | } | |
331 | ||
332 | free(changes); | |
333 | } | |
334 | ||
da6053d0 LP |
335 | void unit_file_dump_changes(int r, const char *verb, const UnitFileChange *changes, size_t n_changes, bool quiet) { |
336 | size_t i; | |
af3d8113 ZJS |
337 | bool logged = false; |
338 | ||
339 | assert(changes || n_changes == 0); | |
340 | /* If verb is not specified, errors are not allowed! */ | |
341 | assert(verb || r >= 0); | |
342 | ||
343 | for (i = 0; i < n_changes; i++) { | |
344 | assert(verb || changes[i].type >= 0); | |
345 | ||
346 | switch(changes[i].type) { | |
347 | case UNIT_FILE_SYMLINK: | |
348 | if (!quiet) | |
a760db24 ZJS |
349 | log_info("Created symlink %s %s %s.", |
350 | changes[i].path, | |
323b7dc9 | 351 | special_glyph(ARROW), |
a760db24 | 352 | changes[i].source); |
af3d8113 ZJS |
353 | break; |
354 | case UNIT_FILE_UNLINK: | |
355 | if (!quiet) | |
356 | log_info("Removed %s.", changes[i].path); | |
357 | break; | |
358 | case UNIT_FILE_IS_MASKED: | |
359 | if (!quiet) | |
360 | log_info("Unit %s is masked, ignoring.", changes[i].path); | |
361 | break; | |
893275df ZJS |
362 | case UNIT_FILE_IS_DANGLING: |
363 | if (!quiet) | |
364 | log_info("Unit %s is an alias to a unit that is not present, ignoring.", | |
365 | changes[i].path); | |
366 | break; | |
af3d8113 ZJS |
367 | case -EEXIST: |
368 | if (changes[i].source) | |
369 | log_error_errno(changes[i].type, | |
370 | "Failed to %s unit, file %s already exists and is a symlink to %s.", | |
371 | verb, changes[i].path, changes[i].source); | |
372 | else | |
373 | log_error_errno(changes[i].type, | |
374 | "Failed to %s unit, file %s already exists.", | |
375 | verb, changes[i].path); | |
376 | logged = true; | |
377 | break; | |
378 | case -ERFKILL: | |
379 | log_error_errno(changes[i].type, "Failed to %s unit, unit %s is masked.", | |
380 | verb, changes[i].path); | |
381 | logged = true; | |
382 | break; | |
383 | case -EADDRNOTAVAIL: | |
384 | log_error_errno(changes[i].type, "Failed to %s unit, unit %s is transient or generated.", | |
385 | verb, changes[i].path); | |
386 | logged = true; | |
387 | break; | |
388 | case -ELOOP: | |
389 | log_error_errno(changes[i].type, "Failed to %s unit, refusing to operate on linked unit file %s", | |
390 | verb, changes[i].path); | |
391 | logged = true; | |
392 | break; | |
637d6e5b LP |
393 | |
394 | case -ENOENT: | |
395 | log_error_errno(changes[i].type, "Failed to %s unit, unit %s does not exist.", verb, changes[i].path); | |
396 | logged = true; | |
397 | break; | |
398 | ||
af3d8113 ZJS |
399 | default: |
400 | assert(changes[i].type < 0); | |
401 | log_error_errno(changes[i].type, "Failed to %s unit, file %s: %m.", | |
402 | verb, changes[i].path); | |
403 | logged = true; | |
404 | } | |
405 | } | |
406 | ||
407 | if (r < 0 && !logged) | |
408 | log_error_errno(r, "Failed to %s: %m.", verb); | |
409 | } | |
410 | ||
25ea9277 ZJS |
411 | /** |
412 | * Checks if two paths or symlinks from wd are the same, when root is the root of the filesystem. | |
413 | * wc should be the full path in the host file system. | |
414 | */ | |
415 | static bool chroot_symlinks_same(const char *root, const char *wd, const char *a, const char *b) { | |
416 | assert(path_is_absolute(wd)); | |
417 | ||
418 | /* This will give incorrect results if the paths are relative and go outside | |
419 | * of the chroot. False negatives are possible. */ | |
420 | ||
ae9efab7 ZJS |
421 | if (!root) |
422 | root = "/"; | |
423 | ||
25ea9277 ZJS |
424 | a = strjoina(path_is_absolute(a) ? root : wd, "/", a); |
425 | b = strjoina(path_is_absolute(b) ? root : wd, "/", b); | |
e3f791a2 | 426 | return path_equal_or_files_same(a, b, 0); |
25ea9277 ZJS |
427 | } |
428 | ||
0ec0deaa | 429 | static int create_symlink( |
60bec8e4 | 430 | const LookupPaths *paths, |
0ec0deaa LP |
431 | const char *old_path, |
432 | const char *new_path, | |
433 | bool force, | |
434 | UnitFileChange **changes, | |
da6053d0 | 435 | size_t *n_changes) { |
0ec0deaa | 436 | |
25ea9277 | 437 | _cleanup_free_ char *dest = NULL, *dirname = NULL; |
60bec8e4 | 438 | const char *rp; |
0ec0deaa LP |
439 | int r; |
440 | ||
441 | assert(old_path); | |
442 | assert(new_path); | |
443 | ||
60bec8e4 ZJS |
444 | rp = skip_root(paths, old_path); |
445 | if (rp) | |
446 | old_path = rp; | |
447 | ||
0ec0deaa LP |
448 | /* Actually create a symlink, and remember that we did. Is |
449 | * smart enough to check if there's already a valid symlink in | |
85158303 ZJS |
450 | * place. |
451 | * | |
452 | * Returns 1 if a symlink was created or already exists and points to | |
453 | * the right place, or negative on error. | |
454 | */ | |
0ec0deaa LP |
455 | |
456 | mkdir_parents_label(new_path, 0755); | |
457 | ||
458 | if (symlink(old_path, new_path) >= 0) { | |
459 | unit_file_changes_add(changes, n_changes, UNIT_FILE_SYMLINK, new_path, old_path); | |
3de15214 | 460 | return 1; |
0ec0deaa LP |
461 | } |
462 | ||
af3d8113 ZJS |
463 | if (errno != EEXIST) { |
464 | unit_file_changes_add(changes, n_changes, -errno, new_path, NULL); | |
0ec0deaa | 465 | return -errno; |
af3d8113 | 466 | } |
0ec0deaa LP |
467 | |
468 | r = readlink_malloc(new_path, &dest); | |
7d782f26 ZJS |
469 | if (r < 0) { |
470 | /* translate EINVAL (non-symlink exists) to EEXIST */ | |
471 | if (r == -EINVAL) | |
472 | r = -EEXIST; | |
473 | ||
474 | unit_file_changes_add(changes, n_changes, r, new_path, NULL); | |
0ec0deaa | 475 | return r; |
7d782f26 | 476 | } |
0ec0deaa | 477 | |
25ea9277 ZJS |
478 | dirname = dirname_malloc(new_path); |
479 | if (!dirname) | |
480 | return -ENOMEM; | |
481 | ||
482 | if (chroot_symlinks_same(paths->root_dir, dirname, dest, old_path)) | |
85158303 | 483 | return 1; |
0ec0deaa | 484 | |
af3d8113 ZJS |
485 | if (!force) { |
486 | unit_file_changes_add(changes, n_changes, -EEXIST, new_path, dest); | |
0ec0deaa | 487 | return -EEXIST; |
af3d8113 | 488 | } |
0ec0deaa LP |
489 | |
490 | r = symlink_atomic(old_path, new_path); | |
7d782f26 ZJS |
491 | if (r < 0) { |
492 | unit_file_changes_add(changes, n_changes, r, new_path, NULL); | |
0ec0deaa | 493 | return r; |
7d782f26 | 494 | } |
0ec0deaa LP |
495 | |
496 | unit_file_changes_add(changes, n_changes, UNIT_FILE_UNLINK, new_path, NULL); | |
497 | unit_file_changes_add(changes, n_changes, UNIT_FILE_SYMLINK, new_path, old_path); | |
498 | ||
3de15214 | 499 | return 1; |
0ec0deaa LP |
500 | } |
501 | ||
83096483 LP |
502 | static int mark_symlink_for_removal( |
503 | Set **remove_symlinks_to, | |
504 | const char *p) { | |
505 | ||
506 | char *n; | |
507 | int r; | |
508 | ||
509 | assert(p); | |
510 | ||
548f6937 | 511 | r = set_ensure_allocated(remove_symlinks_to, &path_hash_ops); |
83096483 LP |
512 | if (r < 0) |
513 | return r; | |
514 | ||
515 | n = strdup(p); | |
516 | if (!n) | |
517 | return -ENOMEM; | |
518 | ||
858d36c1 | 519 | path_simplify(n, false); |
83096483 | 520 | |
ef42202a | 521 | r = set_consume(*remove_symlinks_to, n); |
d25e100b LP |
522 | if (r == -EEXIST) |
523 | return 0; | |
ef42202a | 524 | if (r < 0) |
d25e100b | 525 | return r; |
83096483 | 526 | |
0ec0deaa | 527 | return 1; |
83096483 LP |
528 | } |
529 | ||
530 | static int remove_marked_symlinks_fd( | |
531 | Set *remove_symlinks_to, | |
532 | int fd, | |
533 | const char *path, | |
534 | const char *config_path, | |
401017e0 | 535 | const LookupPaths *lp, |
3b3557c4 | 536 | bool dry_run, |
0ec0deaa | 537 | bool *restart, |
83096483 | 538 | UnitFileChange **changes, |
da6053d0 | 539 | size_t *n_changes) { |
83096483 | 540 | |
7fd1b19b | 541 | _cleanup_closedir_ DIR *d = NULL; |
d25e100b | 542 | struct dirent *de; |
bcafe923 | 543 | int r = 0; |
83096483 LP |
544 | |
545 | assert(remove_symlinks_to); | |
546 | assert(fd >= 0); | |
547 | assert(path); | |
548 | assert(config_path); | |
401017e0 | 549 | assert(lp); |
0ec0deaa | 550 | assert(restart); |
83096483 LP |
551 | |
552 | d = fdopendir(fd); | |
553 | if (!d) { | |
03e334a1 | 554 | safe_close(fd); |
83096483 LP |
555 | return -errno; |
556 | } | |
557 | ||
558 | rewinddir(d); | |
559 | ||
d25e100b | 560 | FOREACH_DIRENT(de, d, return -errno) { |
83096483 LP |
561 | |
562 | dirent_ensure_type(d, de); | |
563 | ||
564 | if (de->d_type == DT_DIR) { | |
7fd1b19b | 565 | _cleanup_free_ char *p = NULL; |
d25e100b | 566 | int nfd, q; |
83096483 LP |
567 | |
568 | nfd = openat(fd, de->d_name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW); | |
569 | if (nfd < 0) { | |
570 | if (errno == ENOENT) | |
571 | continue; | |
572 | ||
573 | if (r == 0) | |
574 | r = -errno; | |
575 | continue; | |
576 | } | |
577 | ||
578 | p = path_make_absolute(de->d_name, path); | |
579 | if (!p) { | |
03e334a1 | 580 | safe_close(nfd); |
d9e5e694 | 581 | return -ENOMEM; |
83096483 LP |
582 | } |
583 | ||
584 | /* This will close nfd, regardless whether it succeeds or not */ | |
3b3557c4 | 585 | q = remove_marked_symlinks_fd(remove_symlinks_to, nfd, p, config_path, lp, dry_run, restart, changes, n_changes); |
bcafe923 | 586 | if (q < 0 && r == 0) |
83096483 LP |
587 | r = q; |
588 | ||
589 | } else if (de->d_type == DT_LNK) { | |
7fd1b19b | 590 | _cleanup_free_ char *p = NULL, *dest = NULL; |
401017e0 | 591 | const char *rp; |
83096483 | 592 | bool found; |
0ec0deaa | 593 | int q; |
83096483 | 594 | |
7410616c | 595 | if (!unit_name_is_valid(de->d_name, UNIT_NAME_ANY)) |
bcafe923 LP |
596 | continue; |
597 | ||
83096483 | 598 | p = path_make_absolute(de->d_name, path); |
d9e5e694 ZJS |
599 | if (!p) |
600 | return -ENOMEM; | |
858d36c1 | 601 | path_simplify(p, false); |
83096483 | 602 | |
0ec0deaa | 603 | q = readlink_malloc(p, &dest); |
401017e0 LP |
604 | if (q == -ENOENT) |
605 | continue; | |
83096483 | 606 | if (q < 0) { |
83096483 LP |
607 | if (r == 0) |
608 | r = q; | |
609 | continue; | |
610 | } | |
611 | ||
401017e0 LP |
612 | /* We remove all links pointing to a file or path that is marked, as well as all files sharing |
613 | * the same name as a file that is marked. */ | |
0ec0deaa | 614 | |
596fc263 | 615 | found = set_contains(remove_symlinks_to, dest) || |
0ec0deaa LP |
616 | set_contains(remove_symlinks_to, basename(dest)) || |
617 | set_contains(remove_symlinks_to, de->d_name); | |
83096483 | 618 | |
1dacfd2a LP |
619 | if (!found) |
620 | continue; | |
83096483 | 621 | |
3b3557c4 JS |
622 | if (!dry_run) { |
623 | if (unlinkat(fd, de->d_name, 0) < 0 && errno != ENOENT) { | |
624 | if (r == 0) | |
625 | r = -errno; | |
626 | unit_file_changes_add(changes, n_changes, -errno, p, NULL); | |
627 | continue; | |
628 | } | |
bcafe923 | 629 | |
3b3557c4 JS |
630 | (void) rmdir_parents(p, config_path); |
631 | } | |
83096483 | 632 | |
0ec0deaa | 633 | unit_file_changes_add(changes, n_changes, UNIT_FILE_UNLINK, p, NULL); |
1dacfd2a | 634 | |
12bf0ae4 ZJS |
635 | /* Now, remember the full path (but with the root prefix removed) of |
636 | * the symlink we just removed, and remove any symlinks to it, too. */ | |
401017e0 LP |
637 | |
638 | rp = skip_root(lp, p); | |
639 | q = mark_symlink_for_removal(&remove_symlinks_to, rp ?: p); | |
0ec0deaa LP |
640 | if (q < 0) |
641 | return q; | |
3b3557c4 | 642 | if (q > 0 && !dry_run) |
0ec0deaa | 643 | *restart = true; |
83096483 LP |
644 | } |
645 | } | |
646 | ||
83096483 LP |
647 | return r; |
648 | } | |
649 | ||
650 | static int remove_marked_symlinks( | |
651 | Set *remove_symlinks_to, | |
652 | const char *config_path, | |
401017e0 | 653 | const LookupPaths *lp, |
3b3557c4 | 654 | bool dry_run, |
83096483 | 655 | UnitFileChange **changes, |
da6053d0 | 656 | size_t *n_changes) { |
83096483 | 657 | |
da39f6a6 | 658 | _cleanup_close_ int fd = -1; |
0ec0deaa | 659 | bool restart; |
d25e100b | 660 | int r = 0; |
83096483 LP |
661 | |
662 | assert(config_path); | |
401017e0 | 663 | assert(lp); |
83096483 LP |
664 | |
665 | if (set_size(remove_symlinks_to) <= 0) | |
666 | return 0; | |
667 | ||
67852d08 | 668 | fd = open(config_path, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC); |
83096483 | 669 | if (fd < 0) |
32d9493e | 670 | return errno == ENOENT ? 0 : -errno; |
83096483 LP |
671 | |
672 | do { | |
673 | int q, cfd; | |
0ec0deaa | 674 | restart = false; |
83096483 | 675 | |
ead34950 | 676 | cfd = fcntl(fd, F_DUPFD_CLOEXEC, 3); |
d25e100b LP |
677 | if (cfd < 0) |
678 | return -errno; | |
83096483 LP |
679 | |
680 | /* This takes possession of cfd and closes it */ | |
3b3557c4 | 681 | q = remove_marked_symlinks_fd(remove_symlinks_to, cfd, config_path, config_path, lp, dry_run, &restart, changes, n_changes); |
83096483 LP |
682 | if (r == 0) |
683 | r = q; | |
0ec0deaa | 684 | } while (restart); |
83096483 | 685 | |
83096483 LP |
686 | return r; |
687 | } | |
688 | ||
5cd8ae31 ZJS |
689 | static bool is_symlink_with_known_name(const UnitFileInstallInfo *i, const char *name) { |
690 | int r; | |
691 | ||
692 | if (streq(name, i->name)) | |
693 | return true; | |
694 | ||
695 | if (strv_contains(i->aliases, name)) | |
696 | return true; | |
697 | ||
698 | /* Look for template symlink matching DefaultInstance */ | |
699 | if (i->default_instance && unit_name_is_valid(i->name, UNIT_NAME_TEMPLATE)) { | |
700 | _cleanup_free_ char *s = NULL; | |
701 | ||
702 | r = unit_name_replace_instance(i->name, i->default_instance, &s); | |
703 | if (r < 0) { | |
704 | if (r != -EINVAL) | |
705 | return r; | |
706 | ||
707 | } else if (streq(name, s)) | |
708 | return true; | |
709 | } | |
710 | ||
711 | return false; | |
712 | } | |
713 | ||
83096483 | 714 | static int find_symlinks_fd( |
0ec0deaa | 715 | const char *root_dir, |
5cd8ae31 | 716 | UnitFileInstallInfo *i, |
d9b4b48f | 717 | bool match_aliases, |
83096483 LP |
718 | int fd, |
719 | const char *path, | |
720 | const char *config_path, | |
721 | bool *same_name_link) { | |
722 | ||
7fd1b19b | 723 | _cleanup_closedir_ DIR *d = NULL; |
d25e100b LP |
724 | struct dirent *de; |
725 | int r = 0; | |
83096483 | 726 | |
5cd8ae31 | 727 | assert(i); |
83096483 LP |
728 | assert(fd >= 0); |
729 | assert(path); | |
730 | assert(config_path); | |
731 | assert(same_name_link); | |
732 | ||
733 | d = fdopendir(fd); | |
734 | if (!d) { | |
03e334a1 | 735 | safe_close(fd); |
83096483 LP |
736 | return -errno; |
737 | } | |
738 | ||
d25e100b | 739 | FOREACH_DIRENT(de, d, return -errno) { |
83096483 LP |
740 | |
741 | dirent_ensure_type(d, de); | |
742 | ||
743 | if (de->d_type == DT_DIR) { | |
7fd1b19b | 744 | _cleanup_free_ char *p = NULL; |
d25e100b | 745 | int nfd, q; |
83096483 LP |
746 | |
747 | nfd = openat(fd, de->d_name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW); | |
748 | if (nfd < 0) { | |
749 | if (errno == ENOENT) | |
750 | continue; | |
751 | ||
752 | if (r == 0) | |
753 | r = -errno; | |
754 | continue; | |
755 | } | |
756 | ||
757 | p = path_make_absolute(de->d_name, path); | |
758 | if (!p) { | |
03e334a1 | 759 | safe_close(nfd); |
ea55addc | 760 | return -ENOMEM; |
83096483 LP |
761 | } |
762 | ||
763 | /* This will close nfd, regardless whether it succeeds or not */ | |
d9b4b48f | 764 | q = find_symlinks_fd(root_dir, i, match_aliases, nfd, |
5cd8ae31 | 765 | p, config_path, same_name_link); |
ea55addc ZJS |
766 | if (q > 0) |
767 | return 1; | |
83096483 LP |
768 | if (r == 0) |
769 | r = q; | |
770 | ||
771 | } else if (de->d_type == DT_LNK) { | |
7fd1b19b | 772 | _cleanup_free_ char *p = NULL, *dest = NULL; |
83096483 LP |
773 | bool found_path, found_dest, b = false; |
774 | int q; | |
775 | ||
776 | /* Acquire symlink name */ | |
777 | p = path_make_absolute(de->d_name, path); | |
ea55addc ZJS |
778 | if (!p) |
779 | return -ENOMEM; | |
83096483 LP |
780 | |
781 | /* Acquire symlink destination */ | |
0ec0deaa | 782 | q = readlink_malloc(p, &dest); |
d25e100b LP |
783 | if (q == -ENOENT) |
784 | continue; | |
83096483 | 785 | if (q < 0) { |
83096483 LP |
786 | if (r == 0) |
787 | r = q; | |
788 | continue; | |
789 | } | |
790 | ||
0ec0deaa LP |
791 | /* Make absolute */ |
792 | if (!path_is_absolute(dest)) { | |
793 | char *x; | |
794 | ||
795 | x = prefix_root(root_dir, dest); | |
796 | if (!x) | |
797 | return -ENOMEM; | |
798 | ||
799 | free(dest); | |
800 | dest = x; | |
801 | } | |
802 | ||
83096483 LP |
803 | /* Check if the symlink itself matches what we |
804 | * are looking for */ | |
5cd8ae31 ZJS |
805 | if (path_is_absolute(i->name)) |
806 | found_path = path_equal(p, i->name); | |
83096483 | 807 | else |
5cd8ae31 | 808 | found_path = streq(de->d_name, i->name); |
83096483 LP |
809 | |
810 | /* Check if what the symlink points to | |
811 | * matches what we are looking for */ | |
5cd8ae31 ZJS |
812 | if (path_is_absolute(i->name)) |
813 | found_dest = path_equal(dest, i->name); | |
83096483 | 814 | else |
5cd8ae31 | 815 | found_dest = streq(basename(dest), i->name); |
83096483 | 816 | |
83096483 | 817 | if (found_path && found_dest) { |
7fd1b19b | 818 | _cleanup_free_ char *t = NULL; |
83096483 LP |
819 | |
820 | /* Filter out same name links in the main | |
821 | * config path */ | |
5cd8ae31 | 822 | t = path_make_absolute(i->name, config_path); |
ea55addc ZJS |
823 | if (!t) |
824 | return -ENOMEM; | |
83096483 LP |
825 | |
826 | b = path_equal(t, p); | |
83096483 LP |
827 | } |
828 | ||
83096483 LP |
829 | if (b) |
830 | *same_name_link = true; | |
5cd8ae31 | 831 | else if (found_path || found_dest) { |
d9b4b48f ZJS |
832 | if (!match_aliases) |
833 | return 1; | |
834 | ||
5cd8ae31 ZJS |
835 | /* Check if symlink name is in the set of names used by [Install] */ |
836 | q = is_symlink_with_known_name(i, de->d_name); | |
5cd8ae31 ZJS |
837 | if (q < 0) |
838 | return q; | |
839 | if (q > 0) | |
840 | return 1; | |
841 | } | |
83096483 LP |
842 | } |
843 | } | |
d25e100b LP |
844 | |
845 | return r; | |
83096483 LP |
846 | } |
847 | ||
848 | static int find_symlinks( | |
0ec0deaa | 849 | const char *root_dir, |
5cd8ae31 | 850 | UnitFileInstallInfo *i, |
d9b4b48f | 851 | bool match_name, |
83096483 LP |
852 | const char *config_path, |
853 | bool *same_name_link) { | |
854 | ||
855 | int fd; | |
856 | ||
5cd8ae31 | 857 | assert(i); |
83096483 LP |
858 | assert(config_path); |
859 | assert(same_name_link); | |
860 | ||
1cd1dab9 | 861 | fd = open(config_path, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC); |
d5891fda | 862 | if (fd < 0) { |
a1feacf7 | 863 | if (IN_SET(errno, ENOENT, ENOTDIR, EACCES)) |
d5891fda | 864 | return 0; |
83096483 | 865 | return -errno; |
d5891fda | 866 | } |
83096483 LP |
867 | |
868 | /* This takes possession of fd and closes it */ | |
d9b4b48f | 869 | return find_symlinks_fd(root_dir, i, match_name, fd, |
5cd8ae31 | 870 | config_path, config_path, same_name_link); |
83096483 LP |
871 | } |
872 | ||
873 | static int find_symlinks_in_scope( | |
d2561cfd | 874 | UnitFileScope scope, |
e1c5c2b0 | 875 | const LookupPaths *paths, |
5cd8ae31 | 876 | UnitFileInstallInfo *i, |
d9b4b48f | 877 | bool match_name, |
83096483 LP |
878 | UnitFileState *state) { |
879 | ||
dfead90d LP |
880 | bool same_name_link_runtime = false, same_name_link_config = false; |
881 | bool enabled_in_runtime = false, enabled_at_all = false; | |
882 | char **p; | |
0ec0deaa | 883 | int r; |
83096483 | 884 | |
e1c5c2b0 | 885 | assert(paths); |
5cd8ae31 | 886 | assert(i); |
83096483 | 887 | |
dfead90d LP |
888 | STRV_FOREACH(p, paths->search_path) { |
889 | bool same_name_link = false; | |
890 | ||
d9b4b48f | 891 | r = find_symlinks(paths->root_dir, i, match_name, *p, &same_name_link); |
dfead90d LP |
892 | if (r < 0) |
893 | return r; | |
894 | if (r > 0) { | |
895 | /* We found symlinks in this dir? Yay! Let's see where precisely it is enabled. */ | |
896 | ||
bb2682bc | 897 | if (path_equal_ptr(*p, paths->persistent_config)) { |
dfead90d LP |
898 | /* This is the best outcome, let's return it immediately. */ |
899 | *state = UNIT_FILE_ENABLED; | |
900 | return 1; | |
901 | } | |
902 | ||
bb2682bc | 903 | /* look for global enablement of user units */ |
d2561cfd ZJS |
904 | if (scope == UNIT_FILE_USER && path_is_user_config_dir(*p)) { |
905 | *state = UNIT_FILE_ENABLED; | |
906 | return 1; | |
907 | } | |
908 | ||
dfead90d LP |
909 | r = path_is_runtime(paths, *p, false); |
910 | if (r < 0) | |
911 | return r; | |
912 | if (r > 0) | |
913 | enabled_in_runtime = true; | |
914 | else | |
915 | enabled_at_all = true; | |
916 | ||
917 | } else if (same_name_link) { | |
bb2682bc | 918 | if (path_equal_ptr(*p, paths->persistent_config)) |
dfead90d LP |
919 | same_name_link_config = true; |
920 | else { | |
921 | r = path_is_runtime(paths, *p, false); | |
922 | if (r < 0) | |
923 | return r; | |
924 | if (r > 0) | |
925 | same_name_link_runtime = true; | |
926 | } | |
927 | } | |
83096483 LP |
928 | } |
929 | ||
dfead90d | 930 | if (enabled_in_runtime) { |
0ec0deaa | 931 | *state = UNIT_FILE_ENABLED_RUNTIME; |
dfead90d LP |
932 | return 1; |
933 | } | |
934 | ||
935 | /* Here's a special rule: if the unit we are looking for is an instance, and it symlinked in the search path | |
936 | * outside of runtime and configuration directory, then we consider it statically enabled. Note we do that only | |
937 | * for instance, not for regular names, as those are merely aliases, while instances explicitly instantiate | |
938 | * something, and hence are a much stronger concept. */ | |
5cd8ae31 | 939 | if (enabled_at_all && unit_name_is_valid(i->name, UNIT_NAME_INSTANCE)) { |
dfead90d LP |
940 | *state = UNIT_FILE_STATIC; |
941 | return 1; | |
83096483 LP |
942 | } |
943 | ||
944 | /* Hmm, we didn't find it, but maybe we found the same name | |
945 | * link? */ | |
dfead90d | 946 | if (same_name_link_config) { |
0ec0deaa LP |
947 | *state = UNIT_FILE_LINKED; |
948 | return 1; | |
949 | } | |
83096483 LP |
950 | if (same_name_link_runtime) { |
951 | *state = UNIT_FILE_LINKED_RUNTIME; | |
952 | return 1; | |
83096483 LP |
953 | } |
954 | ||
955 | return 0; | |
956 | } | |
957 | ||
0ec0deaa | 958 | static void install_info_free(UnitFileInstallInfo *i) { |
83096483 | 959 | |
0ec0deaa LP |
960 | if (!i) |
961 | return; | |
83096483 | 962 | |
0ec0deaa LP |
963 | free(i->name); |
964 | free(i->path); | |
965 | strv_free(i->aliases); | |
966 | strv_free(i->wanted_by); | |
967 | strv_free(i->required_by); | |
968 | strv_free(i->also); | |
969 | free(i->default_instance); | |
970 | free(i->symlink_target); | |
971 | free(i); | |
972 | } | |
83096483 | 973 | |
0ec0deaa LP |
974 | static void install_context_done(InstallContext *c) { |
975 | assert(c); | |
83096483 | 976 | |
224b0e7a ZJS |
977 | c->will_process = ordered_hashmap_free_with_destructor(c->will_process, install_info_free); |
978 | c->have_processed = ordered_hashmap_free_with_destructor(c->have_processed, install_info_free); | |
0ec0deaa | 979 | } |
83096483 | 980 | |
0ec0deaa LP |
981 | static UnitFileInstallInfo *install_info_find(InstallContext *c, const char *name) { |
982 | UnitFileInstallInfo *i; | |
83096483 | 983 | |
0ec0deaa LP |
984 | i = ordered_hashmap_get(c->have_processed, name); |
985 | if (i) | |
986 | return i; | |
83096483 | 987 | |
0ec0deaa | 988 | return ordered_hashmap_get(c->will_process, name); |
83096483 LP |
989 | } |
990 | ||
af3d8113 ZJS |
991 | static int install_info_may_process( |
992 | UnitFileInstallInfo *i, | |
993 | const LookupPaths *paths, | |
994 | UnitFileChange **changes, | |
da6053d0 | 995 | size_t *n_changes) { |
76adb5b8 LP |
996 | assert(i); |
997 | assert(paths); | |
998 | ||
047d91f9 ZJS |
999 | /* Checks whether the loaded unit file is one we should process, or is masked, |
1000 | * transient or generated and thus not subject to enable/disable operations. */ | |
76adb5b8 | 1001 | |
af3d8113 ZJS |
1002 | if (i->type == UNIT_FILE_TYPE_MASKED) { |
1003 | unit_file_changes_add(changes, n_changes, -ERFKILL, i->path, NULL); | |
76ec966f | 1004 | return -ERFKILL; |
af3d8113 ZJS |
1005 | } |
1006 | if (path_is_generator(paths, i->path) || | |
1007 | path_is_transient(paths, i->path)) { | |
1008 | unit_file_changes_add(changes, n_changes, -EADDRNOTAVAIL, i->path, NULL); | |
76adb5b8 | 1009 | return -EADDRNOTAVAIL; |
af3d8113 | 1010 | } |
76adb5b8 LP |
1011 | |
1012 | return 0; | |
1013 | } | |
1014 | ||
ff56349d ZJS |
1015 | /** |
1016 | * Adds a new UnitFileInstallInfo entry under name in the InstallContext.will_process | |
1017 | * hashmap, or retrieves the existing one if already present. | |
19539807 ZJS |
1018 | * |
1019 | * Returns negative on error, 0 if the unit was already known, 1 otherwise. | |
ff56349d | 1020 | */ |
83096483 LP |
1021 | static int install_info_add( |
1022 | InstallContext *c, | |
1023 | const char *name, | |
0ec0deaa | 1024 | const char *path, |
19539807 | 1025 | bool auxiliary, |
0ec0deaa LP |
1026 | UnitFileInstallInfo **ret) { |
1027 | ||
cab6235f | 1028 | UnitFileInstallInfo *i = NULL; |
83096483 LP |
1029 | int r; |
1030 | ||
1031 | assert(c); | |
1032 | assert(name || path); | |
1033 | ||
1034 | if (!name) | |
2b6bf07d | 1035 | name = basename(path); |
83096483 | 1036 | |
7410616c | 1037 | if (!unit_name_is_valid(name, UNIT_NAME_ANY)) |
83096483 LP |
1038 | return -EINVAL; |
1039 | ||
0ec0deaa LP |
1040 | i = install_info_find(c, name); |
1041 | if (i) { | |
19539807 ZJS |
1042 | i->auxiliary = i->auxiliary && auxiliary; |
1043 | ||
0ec0deaa LP |
1044 | if (ret) |
1045 | *ret = i; | |
83096483 | 1046 | return 0; |
0ec0deaa | 1047 | } |
83096483 | 1048 | |
0ec0deaa | 1049 | r = ordered_hashmap_ensure_allocated(&c->will_process, &string_hash_ops); |
83096483 LP |
1050 | if (r < 0) |
1051 | return r; | |
1052 | ||
cab6235f | 1053 | i = new0(UnitFileInstallInfo, 1); |
83096483 LP |
1054 | if (!i) |
1055 | return -ENOMEM; | |
0ec0deaa | 1056 | i->type = _UNIT_FILE_TYPE_INVALID; |
19539807 | 1057 | i->auxiliary = auxiliary; |
83096483 LP |
1058 | |
1059 | i->name = strdup(name); | |
1060 | if (!i->name) { | |
1061 | r = -ENOMEM; | |
1062 | goto fail; | |
1063 | } | |
1064 | ||
1065 | if (path) { | |
1066 | i->path = strdup(path); | |
1067 | if (!i->path) { | |
1068 | r = -ENOMEM; | |
1069 | goto fail; | |
1070 | } | |
1071 | } | |
1072 | ||
0ec0deaa | 1073 | r = ordered_hashmap_put(c->will_process, i->name, i); |
83096483 LP |
1074 | if (r < 0) |
1075 | goto fail; | |
1076 | ||
0ec0deaa LP |
1077 | if (ret) |
1078 | *ret = i; | |
1079 | ||
19539807 | 1080 | return 1; |
83096483 LP |
1081 | |
1082 | fail: | |
d25e100b | 1083 | install_info_free(i); |
83096483 LP |
1084 | return r; |
1085 | } | |
1086 | ||
a7724589 ZJS |
1087 | static int config_parse_alias( |
1088 | const char *unit, | |
1089 | const char *filename, | |
1090 | unsigned line, | |
1091 | const char *section, | |
1092 | unsigned section_line, | |
1093 | const char *lvalue, | |
1094 | int ltype, | |
1095 | const char *rvalue, | |
1096 | void *data, | |
1097 | void *userdata) { | |
1098 | ||
a7724589 ZJS |
1099 | UnitType type; |
1100 | ||
142468d8 | 1101 | assert(unit); |
a7724589 ZJS |
1102 | assert(filename); |
1103 | assert(lvalue); | |
1104 | assert(rvalue); | |
1105 | ||
142468d8 | 1106 | type = unit_name_to_type(unit); |
a7724589 ZJS |
1107 | if (!unit_type_may_alias(type)) |
1108 | return log_syntax(unit, LOG_WARNING, filename, line, 0, | |
3b8769bd | 1109 | "Alias= is not allowed for %s units, ignoring.", |
a7724589 ZJS |
1110 | unit_type_to_string(type)); |
1111 | ||
1112 | return config_parse_strv(unit, filename, line, section, section_line, | |
1113 | lvalue, ltype, rvalue, data, userdata); | |
1114 | } | |
1115 | ||
d54c4993 LP |
1116 | static int config_parse_also( |
1117 | const char *unit, | |
1118 | const char *filename, | |
1119 | unsigned line, | |
1120 | const char *section, | |
1121 | unsigned section_line, | |
1122 | const char *lvalue, | |
1123 | int ltype, | |
1124 | const char *rvalue, | |
1125 | void *data, | |
1126 | void *userdata) { | |
83096483 | 1127 | |
19539807 | 1128 | UnitFileInstallInfo *info = userdata, *alsoinfo = NULL; |
0ec0deaa LP |
1129 | InstallContext *c = data; |
1130 | int r; | |
83096483 | 1131 | |
142468d8 | 1132 | assert(unit); |
83096483 LP |
1133 | assert(filename); |
1134 | assert(lvalue); | |
1135 | assert(rvalue); | |
1136 | ||
0ec0deaa | 1137 | for (;;) { |
a6612e65 | 1138 | _cleanup_free_ char *word = NULL, *printed = NULL; |
03da6513 | 1139 | |
0ec0deaa LP |
1140 | r = extract_first_word(&rvalue, &word, NULL, 0); |
1141 | if (r < 0) | |
1142 | return r; | |
03da6513 SS |
1143 | if (r == 0) |
1144 | break; | |
83096483 | 1145 | |
a6612e65 | 1146 | r = install_full_printf(info, word, &printed); |
d9e5e694 | 1147 | if (r < 0) |
83096483 | 1148 | return r; |
aedd4012 | 1149 | |
a6612e65 ZJS |
1150 | if (!unit_name_is_valid(printed, UNIT_NAME_ANY)) |
1151 | return -EINVAL; | |
1152 | ||
1153 | r = install_info_add(c, printed, NULL, true, &alsoinfo); | |
d9e5e694 | 1154 | if (r < 0) |
83096483 | 1155 | return r; |
aedd4012 | 1156 | |
a6612e65 | 1157 | r = strv_push(&info->also, printed); |
aedd4012 JS |
1158 | if (r < 0) |
1159 | return r; | |
0ec0deaa | 1160 | |
a6612e65 | 1161 | printed = NULL; |
83096483 LP |
1162 | } |
1163 | ||
1164 | return 0; | |
1165 | } | |
1166 | ||
d54c4993 LP |
1167 | static int config_parse_default_instance( |
1168 | const char *unit, | |
1169 | const char *filename, | |
1170 | unsigned line, | |
1171 | const char *section, | |
1172 | unsigned section_line, | |
1173 | const char *lvalue, | |
1174 | int ltype, | |
1175 | const char *rvalue, | |
1176 | void *data, | |
1177 | void *userdata) { | |
1178 | ||
cab6235f | 1179 | UnitFileInstallInfo *i = data; |
d7604756 | 1180 | _cleanup_free_ char *printed = NULL; |
d54c4993 LP |
1181 | int r; |
1182 | ||
142468d8 | 1183 | assert(unit); |
d54c4993 LP |
1184 | assert(filename); |
1185 | assert(lvalue); | |
1186 | assert(rvalue); | |
1187 | ||
142468d8 | 1188 | if (unit_name_is_valid(unit, UNIT_NAME_INSTANCE)) |
6597fa61 ZJS |
1189 | /* When enabling an instance, we might be using a template unit file, |
1190 | * but we should ignore DefaultInstance silently. */ | |
1191 | return 0; | |
142468d8 | 1192 | if (!unit_name_is_valid(unit, UNIT_NAME_TEMPLATE)) |
6597fa61 | 1193 | return log_syntax(unit, LOG_WARNING, filename, line, 0, |
10d67460 | 1194 | "DefaultInstance= only makes sense for template units, ignoring."); |
6597fa61 | 1195 | |
d54c4993 LP |
1196 | r = install_full_printf(i, rvalue, &printed); |
1197 | if (r < 0) | |
1198 | return r; | |
1199 | ||
d7604756 | 1200 | if (!unit_instance_is_valid(printed)) |
d54c4993 LP |
1201 | return -EINVAL; |
1202 | ||
3b319885 | 1203 | return free_and_replace(i->default_instance, printed); |
d54c4993 LP |
1204 | } |
1205 | ||
83096483 LP |
1206 | static int unit_file_load( |
1207 | InstallContext *c, | |
cab6235f | 1208 | UnitFileInstallInfo *info, |
83096483 | 1209 | const char *path, |
d04a9386 | 1210 | const char *root_dir, |
0ec0deaa | 1211 | SearchFlags flags) { |
83096483 | 1212 | |
f975e971 | 1213 | const ConfigTableItem items[] = { |
a7724589 | 1214 | { "Install", "Alias", config_parse_alias, 0, &info->aliases }, |
d54c4993 LP |
1215 | { "Install", "WantedBy", config_parse_strv, 0, &info->wanted_by }, |
1216 | { "Install", "RequiredBy", config_parse_strv, 0, &info->required_by }, | |
1217 | { "Install", "DefaultInstance", config_parse_default_instance, 0, info }, | |
1218 | { "Install", "Also", config_parse_also, 0, c }, | |
d54c4993 | 1219 | {} |
83096483 LP |
1220 | }; |
1221 | ||
133e5b36 | 1222 | UnitType type; |
7fd1b19b | 1223 | _cleanup_fclose_ FILE *f = NULL; |
0ec0deaa LP |
1224 | _cleanup_close_ int fd = -1; |
1225 | struct stat st; | |
1226 | int r; | |
83096483 | 1227 | |
83096483 LP |
1228 | assert(info); |
1229 | assert(path); | |
1230 | ||
d04a9386 LP |
1231 | if (!(flags & SEARCH_DROPIN)) { |
1232 | /* Loading or checking for the main unit file… */ | |
133e5b36 | 1233 | |
d04a9386 LP |
1234 | type = unit_name_to_type(info->name); |
1235 | if (type < 0) | |
1236 | return -EINVAL; | |
1237 | if (unit_name_is_valid(info->name, UNIT_NAME_TEMPLATE|UNIT_NAME_INSTANCE) && !unit_type_may_template(type)) { | |
1238 | log_error("Unit type %s cannot be templated.", unit_type_to_string(type)); | |
1239 | return -EINVAL; | |
1240 | } | |
1241 | ||
1242 | if (!(flags & SEARCH_LOAD)) { | |
1243 | r = lstat(path, &st); | |
1244 | if (r < 0) | |
1245 | return -errno; | |
1246 | ||
1247 | if (null_or_empty(&st)) | |
1248 | info->type = UNIT_FILE_TYPE_MASKED; | |
1249 | else if (S_ISREG(st.st_mode)) | |
1250 | info->type = UNIT_FILE_TYPE_REGULAR; | |
1251 | else if (S_ISLNK(st.st_mode)) | |
1252 | return -ELOOP; | |
1253 | else if (S_ISDIR(st.st_mode)) | |
1254 | return -EISDIR; | |
1255 | else | |
1256 | return -ENOTTY; | |
1257 | ||
1258 | return 0; | |
1259 | } | |
1260 | ||
1261 | fd = open(path, O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW); | |
1262 | if (fd < 0) | |
d25e100b | 1263 | return -errno; |
d04a9386 LP |
1264 | } else { |
1265 | /* Operating on a drop-in file. If we aren't supposed to load the unit file drop-ins don't matter, let's hence shortcut this. */ | |
d25e100b | 1266 | |
d04a9386 LP |
1267 | if (!(flags & SEARCH_LOAD)) |
1268 | return 0; | |
0ec0deaa | 1269 | |
d04a9386 LP |
1270 | fd = chase_symlinks_and_open(path, root_dir, 0, O_RDONLY|O_CLOEXEC|O_NOCTTY, NULL); |
1271 | if (fd < 0) | |
1272 | return fd; | |
e94937df LN |
1273 | } |
1274 | ||
0ec0deaa LP |
1275 | if (fstat(fd, &st) < 0) |
1276 | return -errno; | |
d04a9386 | 1277 | |
0ec0deaa | 1278 | if (null_or_empty(&st)) { |
d04a9386 LP |
1279 | if ((flags & SEARCH_DROPIN) == 0) |
1280 | info->type = UNIT_FILE_TYPE_MASKED; | |
1281 | ||
0ec0deaa LP |
1282 | return 0; |
1283 | } | |
3cc44114 LP |
1284 | |
1285 | r = stat_verify_regular(&st); | |
1286 | if (r < 0) | |
1287 | return r; | |
83096483 LP |
1288 | |
1289 | f = fdopen(fd, "re"); | |
0ec0deaa LP |
1290 | if (!f) |
1291 | return -errno; | |
1292 | fd = -1; | |
83096483 | 1293 | |
d04a9386 LP |
1294 | /* c is only needed if we actually load the file (it's referenced from items[] btw, in case you wonder.) */ |
1295 | assert(c); | |
1296 | ||
142468d8 | 1297 | r = config_parse(info->name, path, f, |
36f822c4 ZJS |
1298 | NULL, |
1299 | config_item_table_lookup, items, | |
bcde742e | 1300 | CONFIG_PARSE_RELAXED|CONFIG_PARSE_ALLOW_INCLUDE, info); |
83096483 | 1301 | if (r < 0) |
59108fbe | 1302 | return log_debug_errno(r, "Failed to parse %s: %m", info->name); |
83096483 | 1303 | |
d04a9386 LP |
1304 | if ((flags & SEARCH_DROPIN) == 0) |
1305 | info->type = UNIT_FILE_TYPE_REGULAR; | |
aedd4012 | 1306 | |
78d54bd4 | 1307 | return |
693eb9a2 LP |
1308 | (int) strv_length(info->aliases) + |
1309 | (int) strv_length(info->wanted_by) + | |
1310 | (int) strv_length(info->required_by); | |
83096483 LP |
1311 | } |
1312 | ||
0ec0deaa LP |
1313 | static int unit_file_load_or_readlink( |
1314 | InstallContext *c, | |
1315 | UnitFileInstallInfo *info, | |
1316 | const char *path, | |
1317 | const char *root_dir, | |
1318 | SearchFlags flags) { | |
1319 | ||
401017e0 | 1320 | _cleanup_free_ char *target = NULL; |
0ec0deaa LP |
1321 | int r; |
1322 | ||
d04a9386 LP |
1323 | r = unit_file_load(c, info, path, root_dir, flags); |
1324 | if (r != -ELOOP || (flags & SEARCH_DROPIN)) | |
0ec0deaa LP |
1325 | return r; |
1326 | ||
1327 | /* This is a symlink, let's read it. */ | |
1328 | ||
401017e0 | 1329 | r = readlink_malloc(path, &target); |
0ec0deaa LP |
1330 | if (r < 0) |
1331 | return r; | |
1332 | ||
401017e0 | 1333 | if (path_equal(target, "/dev/null")) |
0ec0deaa LP |
1334 | info->type = UNIT_FILE_TYPE_MASKED; |
1335 | else { | |
1336 | const char *bn; | |
1337 | UnitType a, b; | |
1338 | ||
401017e0 | 1339 | bn = basename(target); |
0ec0deaa LP |
1340 | |
1341 | if (unit_name_is_valid(info->name, UNIT_NAME_PLAIN)) { | |
1342 | ||
1343 | if (!unit_name_is_valid(bn, UNIT_NAME_PLAIN)) | |
1344 | return -EINVAL; | |
1345 | ||
1346 | } else if (unit_name_is_valid(info->name, UNIT_NAME_INSTANCE)) { | |
1347 | ||
1348 | if (!unit_name_is_valid(bn, UNIT_NAME_INSTANCE|UNIT_NAME_TEMPLATE)) | |
1349 | return -EINVAL; | |
1350 | ||
1351 | } else if (unit_name_is_valid(info->name, UNIT_NAME_TEMPLATE)) { | |
1352 | ||
1353 | if (!unit_name_is_valid(bn, UNIT_NAME_TEMPLATE)) | |
1354 | return -EINVAL; | |
1355 | } else | |
1356 | return -EINVAL; | |
1357 | ||
1358 | /* Enforce that the symlink destination does not | |
1359 | * change the unit file type. */ | |
1360 | ||
1361 | a = unit_name_to_type(info->name); | |
1362 | b = unit_name_to_type(bn); | |
1363 | if (a < 0 || b < 0 || a != b) | |
1364 | return -EINVAL; | |
1365 | ||
401017e0 LP |
1366 | if (path_is_absolute(target)) |
1367 | /* This is an absolute path, prefix the root so that we always deal with fully qualified paths */ | |
1368 | info->symlink_target = prefix_root(root_dir, target); | |
1369 | else | |
1370 | /* This is a relative path, take it relative to the dir the symlink is located in. */ | |
1371 | info->symlink_target = file_in_same_dir(path, target); | |
1372 | if (!info->symlink_target) | |
1373 | return -ENOMEM; | |
1374 | ||
0ec0deaa | 1375 | info->type = UNIT_FILE_TYPE_SYMLINK; |
0ec0deaa LP |
1376 | } |
1377 | ||
1378 | return 0; | |
1379 | } | |
1380 | ||
83096483 LP |
1381 | static int unit_file_search( |
1382 | InstallContext *c, | |
cab6235f | 1383 | UnitFileInstallInfo *info, |
a8ffe6fb | 1384 | const LookupPaths *paths, |
0ec0deaa | 1385 | SearchFlags flags) { |
83096483 | 1386 | |
d04a9386 LP |
1387 | const char *dropin_dir_name = NULL, *dropin_template_dir_name = NULL; |
1388 | _cleanup_strv_free_ char **dirs = NULL, **files = NULL; | |
64f9280e | 1389 | _cleanup_free_ char *template = NULL; |
142468d8 | 1390 | bool found_unit = false; |
d04a9386 LP |
1391 | int r, result; |
1392 | char **p; | |
83096483 | 1393 | |
83096483 LP |
1394 | assert(info); |
1395 | assert(paths); | |
1396 | ||
0ec0deaa LP |
1397 | /* Was this unit already loaded? */ |
1398 | if (info->type != _UNIT_FILE_TYPE_INVALID) | |
1399 | return 0; | |
1400 | ||
278fa575 | 1401 | if (info->path) |
e4bb56c7 | 1402 | return unit_file_load_or_readlink(c, info, info->path, paths->root_dir, flags); |
83096483 LP |
1403 | |
1404 | assert(info->name); | |
1405 | ||
142468d8 JL |
1406 | if (unit_name_is_valid(info->name, UNIT_NAME_INSTANCE)) { |
1407 | r = unit_name_template(info->name, &template); | |
1408 | if (r < 0) | |
1409 | return r; | |
1410 | } | |
1411 | ||
a3c4eb07 | 1412 | STRV_FOREACH(p, paths->search_path) { |
e50bd775 | 1413 | _cleanup_free_ char *path = NULL; |
83096483 | 1414 | |
605405c6 | 1415 | path = strjoin(*p, "/", info->name); |
83096483 LP |
1416 | if (!path) |
1417 | return -ENOMEM; | |
1418 | ||
e4bb56c7 | 1419 | r = unit_file_load_or_readlink(c, info, path, paths->root_dir, flags); |
0155928c | 1420 | if (r >= 0) { |
ae2a15bc | 1421 | info->path = TAKE_PTR(path); |
142468d8 JL |
1422 | result = r; |
1423 | found_unit = true; | |
1424 | break; | |
a1feacf7 | 1425 | } else if (!IN_SET(r, -ENOENT, -ENOTDIR, -EACCES)) |
0155928c | 1426 | return r; |
e50bd775 | 1427 | } |
62b00233 | 1428 | |
142468d8 JL |
1429 | if (!found_unit && template) { |
1430 | ||
e50bd775 LP |
1431 | /* Unit file doesn't exist, however instance |
1432 | * enablement was requested. We will check if it is | |
1433 | * possible to load template unit file. */ | |
29283ea4 | 1434 | |
a3c4eb07 | 1435 | STRV_FOREACH(p, paths->search_path) { |
e50bd775 LP |
1436 | _cleanup_free_ char *path = NULL; |
1437 | ||
605405c6 | 1438 | path = strjoin(*p, "/", template); |
62b00233 ZJS |
1439 | if (!path) |
1440 | return -ENOMEM; | |
29283ea4 | 1441 | |
e4bb56c7 | 1442 | r = unit_file_load_or_readlink(c, info, path, paths->root_dir, flags); |
0155928c | 1443 | if (r >= 0) { |
ae2a15bc | 1444 | info->path = TAKE_PTR(path); |
142468d8 JL |
1445 | result = r; |
1446 | found_unit = true; | |
1447 | break; | |
a1feacf7 | 1448 | } else if (!IN_SET(r, -ENOENT, -ENOTDIR, -EACCES)) |
0155928c | 1449 | return r; |
29283ea4 | 1450 | } |
83096483 LP |
1451 | } |
1452 | ||
142468d8 JL |
1453 | if (!found_unit) { |
1454 | log_debug("Cannot find unit %s%s%s.", info->name, template ? " or " : "", strempty(template)); | |
1455 | return -ENOENT; | |
1456 | } | |
1457 | ||
9639b175 FB |
1458 | if (info->type == UNIT_FILE_TYPE_MASKED) |
1459 | return result; | |
1460 | ||
142468d8 JL |
1461 | /* Search for drop-in directories */ |
1462 | ||
1463 | dropin_dir_name = strjoina(info->name, ".d"); | |
1464 | STRV_FOREACH(p, paths->search_path) { | |
1465 | char *path; | |
1466 | ||
1467 | path = path_join(NULL, *p, dropin_dir_name); | |
1468 | if (!path) | |
1469 | return -ENOMEM; | |
1470 | ||
1471 | r = strv_consume(&dirs, path); | |
1472 | if (r < 0) | |
1473 | return r; | |
1474 | } | |
1475 | ||
1476 | if (template) { | |
1477 | dropin_template_dir_name = strjoina(template, ".d"); | |
1478 | STRV_FOREACH(p, paths->search_path) { | |
1479 | char *path; | |
1480 | ||
1481 | path = path_join(NULL, *p, dropin_template_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 | ||
1491 | /* Load drop-in conf files */ | |
1492 | ||
1493 | r = conf_files_list_strv(&files, ".conf", NULL, 0, (const char**) dirs); | |
1494 | if (r < 0) | |
1495 | return log_debug_errno(r, "Failed to get list of conf files: %m"); | |
1496 | ||
1497 | STRV_FOREACH(p, files) { | |
d04a9386 | 1498 | r = unit_file_load_or_readlink(c, info, *p, paths->root_dir, flags | SEARCH_DROPIN); |
142468d8 JL |
1499 | if (r < 0) |
1500 | return log_debug_errno(r, "Failed to load conf file %s: %m", *p); | |
1501 | } | |
1502 | ||
1503 | return result; | |
83096483 LP |
1504 | } |
1505 | ||
0ec0deaa LP |
1506 | static int install_info_follow( |
1507 | InstallContext *c, | |
1508 | UnitFileInstallInfo *i, | |
83096483 | 1509 | const char *root_dir, |
9f6cbcf5 LP |
1510 | SearchFlags flags, |
1511 | bool ignore_different_name) { | |
0ec0deaa LP |
1512 | |
1513 | assert(c); | |
1514 | assert(i); | |
1515 | ||
1516 | if (i->type != UNIT_FILE_TYPE_SYMLINK) | |
1517 | return -EINVAL; | |
1518 | if (!i->symlink_target) | |
1519 | return -EINVAL; | |
1520 | ||
1521 | /* If the basename doesn't match, the caller should add a | |
1522 | * complete new entry for this. */ | |
1523 | ||
9f6cbcf5 | 1524 | if (!ignore_different_name && !streq(basename(i->symlink_target), i->name)) |
0ec0deaa LP |
1525 | return -EXDEV; |
1526 | ||
3b319885 | 1527 | free_and_replace(i->path, i->symlink_target); |
0ec0deaa LP |
1528 | i->type = _UNIT_FILE_TYPE_INVALID; |
1529 | ||
1530 | return unit_file_load_or_readlink(c, i, i->path, root_dir, flags); | |
1531 | } | |
1532 | ||
64f9280e | 1533 | /** |
ff56349d ZJS |
1534 | * Search for the unit file. If the unit name is a symlink, follow the symlink to the |
1535 | * target, maybe more than once. Propagate the instance name if present. | |
64f9280e | 1536 | */ |
0ec0deaa LP |
1537 | static int install_info_traverse( |
1538 | UnitFileScope scope, | |
1539 | InstallContext *c, | |
0ec0deaa LP |
1540 | const LookupPaths *paths, |
1541 | UnitFileInstallInfo *start, | |
1542 | SearchFlags flags, | |
1543 | UnitFileInstallInfo **ret) { | |
83096483 | 1544 | |
cab6235f | 1545 | UnitFileInstallInfo *i; |
0ec0deaa | 1546 | unsigned k = 0; |
83096483 LP |
1547 | int r; |
1548 | ||
1549 | assert(paths); | |
0ec0deaa LP |
1550 | assert(start); |
1551 | assert(c); | |
83096483 | 1552 | |
e4bb56c7 | 1553 | r = unit_file_search(c, start, paths, flags); |
83096483 LP |
1554 | if (r < 0) |
1555 | return r; | |
1556 | ||
0ec0deaa LP |
1557 | i = start; |
1558 | while (i->type == UNIT_FILE_TYPE_SYMLINK) { | |
1559 | /* Follow the symlink */ | |
83096483 | 1560 | |
0ec0deaa LP |
1561 | if (++k > UNIT_FILE_FOLLOW_SYMLINK_MAX) |
1562 | return -ELOOP; | |
83096483 | 1563 | |
e1c5c2b0 | 1564 | if (!(flags & SEARCH_FOLLOW_CONFIG_SYMLINKS)) { |
dfead90d | 1565 | r = path_is_config(paths, i->path, true); |
e1c5c2b0 LP |
1566 | if (r < 0) |
1567 | return r; | |
1568 | if (r > 0) | |
1569 | return -ELOOP; | |
1570 | } | |
83096483 | 1571 | |
9f6cbcf5 | 1572 | r = install_info_follow(c, i, paths->root_dir, flags, false); |
0155928c | 1573 | if (r == -EXDEV) { |
0ec0deaa LP |
1574 | _cleanup_free_ char *buffer = NULL; |
1575 | const char *bn; | |
83096483 | 1576 | |
0ec0deaa LP |
1577 | /* Target has a different name, create a new |
1578 | * install info object for that, and continue | |
1579 | * with that. */ | |
83096483 | 1580 | |
0ec0deaa | 1581 | bn = basename(i->symlink_target); |
83096483 | 1582 | |
0ec0deaa LP |
1583 | if (unit_name_is_valid(i->name, UNIT_NAME_INSTANCE) && |
1584 | unit_name_is_valid(bn, UNIT_NAME_TEMPLATE)) { | |
83096483 | 1585 | |
0ec0deaa LP |
1586 | _cleanup_free_ char *instance = NULL; |
1587 | ||
1588 | r = unit_name_to_instance(i->name, &instance); | |
1589 | if (r < 0) | |
1590 | return r; | |
1591 | ||
1592 | r = unit_name_replace_instance(bn, instance, &buffer); | |
1593 | if (r < 0) | |
1594 | return r; | |
1595 | ||
9f6cbcf5 LP |
1596 | if (streq(buffer, i->name)) { |
1597 | ||
1598 | /* We filled in the instance, and the target stayed the same? If so, then let's | |
1599 | * honour the link as it is. */ | |
1600 | ||
1601 | r = install_info_follow(c, i, paths->root_dir, flags, true); | |
1602 | if (r < 0) | |
1603 | return r; | |
1604 | ||
1605 | continue; | |
1606 | } | |
1607 | ||
0ec0deaa LP |
1608 | bn = buffer; |
1609 | } | |
1610 | ||
19539807 | 1611 | r = install_info_add(c, bn, NULL, false, &i); |
0ec0deaa LP |
1612 | if (r < 0) |
1613 | return r; | |
1614 | ||
0155928c | 1615 | /* Try again, with the new target we found. */ |
e4bb56c7 | 1616 | r = unit_file_search(c, i, paths, flags); |
893275df ZJS |
1617 | if (r == -ENOENT) |
1618 | /* Translate error code to highlight this specific case */ | |
1619 | return -ENOLINK; | |
0ec0deaa LP |
1620 | } |
1621 | ||
0155928c ZJS |
1622 | if (r < 0) |
1623 | return r; | |
83096483 LP |
1624 | } |
1625 | ||
0ec0deaa LP |
1626 | if (ret) |
1627 | *ret = i; | |
83096483 | 1628 | |
0ec0deaa LP |
1629 | return 0; |
1630 | } | |
83096483 | 1631 | |
ff56349d ZJS |
1632 | /** |
1633 | * Call install_info_add() with name_or_path as the path (if name_or_path starts with "/") | |
1634 | * or the name (otherwise). root_dir is prepended to the path. | |
1635 | */ | |
401017e0 LP |
1636 | static int install_info_add_auto( |
1637 | InstallContext *c, | |
1638 | const LookupPaths *paths, | |
1639 | const char *name_or_path, | |
1640 | UnitFileInstallInfo **ret) { | |
1641 | ||
1642 | assert(c); | |
1643 | assert(name_or_path); | |
1644 | ||
1645 | if (path_is_absolute(name_or_path)) { | |
1646 | const char *pp; | |
1647 | ||
1648 | pp = prefix_roota(paths->root_dir, name_or_path); | |
1649 | ||
19539807 | 1650 | return install_info_add(c, NULL, pp, false, ret); |
401017e0 | 1651 | } else |
19539807 | 1652 | return install_info_add(c, name_or_path, NULL, false, ret); |
401017e0 LP |
1653 | } |
1654 | ||
0ec0deaa LP |
1655 | static int install_info_discover( |
1656 | UnitFileScope scope, | |
1657 | InstallContext *c, | |
0ec0deaa LP |
1658 | const LookupPaths *paths, |
1659 | const char *name, | |
1660 | SearchFlags flags, | |
59108fbe ZJS |
1661 | UnitFileInstallInfo **ret, |
1662 | UnitFileChange **changes, | |
da6053d0 | 1663 | size_t *n_changes) { |
83096483 | 1664 | |
0ec0deaa LP |
1665 | UnitFileInstallInfo *i; |
1666 | int r; | |
83096483 | 1667 | |
0ec0deaa LP |
1668 | assert(c); |
1669 | assert(paths); | |
1670 | assert(name); | |
1671 | ||
401017e0 | 1672 | r = install_info_add_auto(c, paths, name, &i); |
59108fbe ZJS |
1673 | if (r >= 0) |
1674 | r = install_info_traverse(scope, c, paths, i, flags, ret); | |
83096483 | 1675 | |
59108fbe ZJS |
1676 | if (r < 0) |
1677 | unit_file_changes_add(changes, n_changes, r, name, NULL); | |
1678 | return r; | |
83096483 LP |
1679 | } |
1680 | ||
1681 | static int install_info_symlink_alias( | |
cab6235f | 1682 | UnitFileInstallInfo *i, |
401017e0 | 1683 | const LookupPaths *paths, |
83096483 LP |
1684 | const char *config_path, |
1685 | bool force, | |
1686 | UnitFileChange **changes, | |
da6053d0 | 1687 | size_t *n_changes) { |
83096483 LP |
1688 | |
1689 | char **s; | |
1690 | int r = 0, q; | |
1691 | ||
1692 | assert(i); | |
401017e0 | 1693 | assert(paths); |
83096483 LP |
1694 | assert(config_path); |
1695 | ||
1696 | STRV_FOREACH(s, i->aliases) { | |
7fd1b19b | 1697 | _cleanup_free_ char *alias_path = NULL, *dst = NULL; |
83096483 | 1698 | |
19f6d710 LP |
1699 | q = install_full_printf(i, *s, &dst); |
1700 | if (q < 0) | |
1701 | return q; | |
83096483 | 1702 | |
7584d236 | 1703 | alias_path = path_make_absolute(dst, config_path); |
83096483 LP |
1704 | if (!alias_path) |
1705 | return -ENOMEM; | |
1706 | ||
60bec8e4 | 1707 | q = create_symlink(paths, i->path, alias_path, force, changes, n_changes); |
83096483 LP |
1708 | if (r == 0) |
1709 | r = q; | |
1710 | } | |
1711 | ||
1712 | return r; | |
1713 | } | |
1714 | ||
1715 | static int install_info_symlink_wants( | |
cab6235f | 1716 | UnitFileInstallInfo *i, |
401017e0 | 1717 | const LookupPaths *paths, |
83096483 | 1718 | const char *config_path, |
d54c4993 LP |
1719 | char **list, |
1720 | const char *suffix, | |
83096483 | 1721 | UnitFileChange **changes, |
da6053d0 | 1722 | size_t *n_changes) { |
83096483 | 1723 | |
d54c4993 LP |
1724 | _cleanup_free_ char *buf = NULL; |
1725 | const char *n; | |
83096483 LP |
1726 | char **s; |
1727 | int r = 0, q; | |
1728 | ||
1729 | assert(i); | |
401017e0 | 1730 | assert(paths); |
83096483 LP |
1731 | assert(config_path); |
1732 | ||
047d91f9 ZJS |
1733 | if (strv_isempty(list)) |
1734 | return 0; | |
1735 | ||
be704916 | 1736 | if (unit_name_is_valid(i->name, UNIT_NAME_TEMPLATE) && i->default_instance) { |
047d91f9 ZJS |
1737 | UnitFileInstallInfo instance = { |
1738 | .type = _UNIT_FILE_TYPE_INVALID, | |
1739 | }; | |
1740 | _cleanup_free_ char *path = NULL; | |
0a327d75 | 1741 | |
7410616c LP |
1742 | r = unit_name_replace_instance(i->name, i->default_instance, &buf); |
1743 | if (r < 0) | |
1744 | return r; | |
83096483 | 1745 | |
047d91f9 ZJS |
1746 | instance.name = buf; |
1747 | r = unit_file_search(NULL, &instance, paths, SEARCH_FOLLOW_CONFIG_SYMLINKS); | |
1748 | if (r < 0) | |
1749 | return r; | |
1750 | ||
ae2a15bc | 1751 | path = TAKE_PTR(instance.path); |
047d91f9 ZJS |
1752 | |
1753 | if (instance.type == UNIT_FILE_TYPE_MASKED) { | |
1754 | unit_file_changes_add(changes, n_changes, -ERFKILL, path, NULL); | |
1755 | return -ERFKILL; | |
1756 | } | |
1757 | ||
d54c4993 LP |
1758 | n = buf; |
1759 | } else | |
1760 | n = i->name; | |
78d54bd4 | 1761 | |
d54c4993 | 1762 | STRV_FOREACH(s, list) { |
7fd1b19b | 1763 | _cleanup_free_ char *path = NULL, *dst = NULL; |
78d54bd4 | 1764 | |
19f6d710 LP |
1765 | q = install_full_printf(i, *s, &dst); |
1766 | if (q < 0) | |
1767 | return q; | |
7584d236 | 1768 | |
7410616c | 1769 | if (!unit_name_is_valid(dst, UNIT_NAME_ANY)) { |
78d54bd4 LP |
1770 | r = -EINVAL; |
1771 | continue; | |
1772 | } | |
1773 | ||
605405c6 | 1774 | path = strjoin(config_path, "/", dst, suffix, n); |
d54c4993 | 1775 | if (!path) |
78d54bd4 LP |
1776 | return -ENOMEM; |
1777 | ||
60bec8e4 | 1778 | q = create_symlink(paths, i->path, path, true, changes, n_changes); |
78d54bd4 LP |
1779 | if (r == 0) |
1780 | r = q; | |
1781 | } | |
1782 | ||
1783 | return r; | |
1784 | } | |
1785 | ||
83096483 | 1786 | static int install_info_symlink_link( |
cab6235f | 1787 | UnitFileInstallInfo *i, |
a8ffe6fb | 1788 | const LookupPaths *paths, |
83096483 LP |
1789 | const char *config_path, |
1790 | bool force, | |
1791 | UnitFileChange **changes, | |
da6053d0 | 1792 | size_t *n_changes) { |
83096483 | 1793 | |
7fd1b19b | 1794 | _cleanup_free_ char *path = NULL; |
1dacfd2a | 1795 | int r; |
83096483 LP |
1796 | |
1797 | assert(i); | |
1798 | assert(paths); | |
1799 | assert(config_path); | |
1800 | assert(i->path); | |
1801 | ||
32c0ed7b | 1802 | r = in_search_path(paths, i->path); |
fe4aede9 | 1803 | if (r < 0) |
83096483 | 1804 | return r; |
fe4aede9 ZJS |
1805 | if (r > 0) |
1806 | return 0; | |
83096483 | 1807 | |
605405c6 | 1808 | path = strjoin(config_path, "/", i->name); |
1dacfd2a | 1809 | if (!path) |
83096483 LP |
1810 | return -ENOMEM; |
1811 | ||
60bec8e4 | 1812 | return create_symlink(paths, i->path, path, force, changes, n_changes); |
83096483 LP |
1813 | } |
1814 | ||
1815 | static int install_info_apply( | |
cab6235f | 1816 | UnitFileInstallInfo *i, |
a8ffe6fb | 1817 | const LookupPaths *paths, |
83096483 LP |
1818 | const char *config_path, |
1819 | bool force, | |
1820 | UnitFileChange **changes, | |
da6053d0 | 1821 | size_t *n_changes) { |
83096483 LP |
1822 | |
1823 | int r, q; | |
1824 | ||
1825 | assert(i); | |
1826 | assert(paths); | |
1827 | assert(config_path); | |
1828 | ||
0ec0deaa LP |
1829 | if (i->type != UNIT_FILE_TYPE_REGULAR) |
1830 | return 0; | |
1831 | ||
401017e0 | 1832 | r = install_info_symlink_alias(i, paths, config_path, force, changes, n_changes); |
83096483 | 1833 | |
29380daf | 1834 | q = install_info_symlink_wants(i, paths, config_path, i->wanted_by, ".wants/", changes, n_changes); |
83096483 LP |
1835 | if (r == 0) |
1836 | r = q; | |
1837 | ||
29380daf | 1838 | q = install_info_symlink_wants(i, paths, config_path, i->required_by, ".requires/", changes, n_changes); |
78d54bd4 LP |
1839 | if (r == 0) |
1840 | r = q; | |
1841 | ||
e4bb56c7 | 1842 | q = install_info_symlink_link(i, paths, config_path, force, changes, n_changes); |
fe4aede9 ZJS |
1843 | /* Do not count links to the unit file towards the "carries_install_info" count */ |
1844 | if (r == 0 && q < 0) | |
83096483 LP |
1845 | r = q; |
1846 | ||
1847 | return r; | |
1848 | } | |
1849 | ||
1850 | static int install_context_apply( | |
0ec0deaa | 1851 | UnitFileScope scope, |
83096483 | 1852 | InstallContext *c, |
a8ffe6fb | 1853 | const LookupPaths *paths, |
83096483 | 1854 | const char *config_path, |
83096483 | 1855 | bool force, |
0ec0deaa | 1856 | SearchFlags flags, |
83096483 | 1857 | UnitFileChange **changes, |
da6053d0 | 1858 | size_t *n_changes) { |
83096483 | 1859 | |
cab6235f | 1860 | UnitFileInstallInfo *i; |
0ec0deaa | 1861 | int r; |
83096483 LP |
1862 | |
1863 | assert(c); | |
1864 | assert(paths); | |
1865 | assert(config_path); | |
1866 | ||
0ec0deaa | 1867 | if (ordered_hashmap_isempty(c->will_process)) |
d25e100b | 1868 | return 0; |
83096483 | 1869 | |
0ec0deaa | 1870 | r = ordered_hashmap_ensure_allocated(&c->have_processed, &string_hash_ops); |
d25e100b LP |
1871 | if (r < 0) |
1872 | return r; | |
83096483 | 1873 | |
2d5c93c7 | 1874 | r = 0; |
0ec0deaa LP |
1875 | while ((i = ordered_hashmap_first(c->will_process))) { |
1876 | int q; | |
83096483 | 1877 | |
0ec0deaa LP |
1878 | q = ordered_hashmap_move_one(c->have_processed, c->will_process, i->name); |
1879 | if (q < 0) | |
1880 | return q; | |
83096483 | 1881 | |
e4bb56c7 | 1882 | r = install_info_traverse(scope, c, paths, i, flags, NULL); |
db093eed ZJS |
1883 | if (r < 0) { |
1884 | unit_file_changes_add(changes, n_changes, r, i->name, NULL); | |
83096483 | 1885 | return r; |
db093eed | 1886 | } |
0ec0deaa | 1887 | |
f1651715 | 1888 | /* We can attempt to process a masked unit when a different unit |
047d91f9 | 1889 | * that we were processing specifies it in Also=. */ |
f1651715 ZJS |
1890 | if (i->type == UNIT_FILE_TYPE_MASKED) { |
1891 | unit_file_changes_add(changes, n_changes, UNIT_FILE_IS_MASKED, i->path, NULL); | |
1892 | if (r >= 0) | |
047d91f9 ZJS |
1893 | /* Assume that something *could* have been enabled here, |
1894 | * avoid "empty [Install] section" warning. */ | |
f1651715 ZJS |
1895 | r += 1; |
1896 | continue; | |
1897 | } | |
1898 | ||
0ec0deaa LP |
1899 | if (i->type != UNIT_FILE_TYPE_REGULAR) |
1900 | continue; | |
83096483 | 1901 | |
e4bb56c7 | 1902 | q = install_info_apply(i, paths, config_path, force, changes, n_changes); |
0ec0deaa LP |
1903 | if (r >= 0) { |
1904 | if (q < 0) | |
1905 | r = q; | |
1906 | else | |
596fc263 | 1907 | r += q; |
0ec0deaa | 1908 | } |
83096483 LP |
1909 | } |
1910 | ||
1911 | return r; | |
1912 | } | |
1913 | ||
1914 | static int install_context_mark_for_removal( | |
0ec0deaa | 1915 | UnitFileScope scope, |
83096483 | 1916 | InstallContext *c, |
a8ffe6fb | 1917 | const LookupPaths *paths, |
83096483 | 1918 | Set **remove_symlinks_to, |
637d6e5b | 1919 | UnitFileChange **changes, |
da6053d0 | 1920 | size_t *n_changes) { |
83096483 | 1921 | |
cab6235f | 1922 | UnitFileInstallInfo *i; |
0ec0deaa | 1923 | int r; |
83096483 LP |
1924 | |
1925 | assert(c); | |
1926 | assert(paths); | |
83096483 LP |
1927 | |
1928 | /* Marks all items for removal */ | |
1929 | ||
0ec0deaa | 1930 | if (ordered_hashmap_isempty(c->will_process)) |
d25e100b | 1931 | return 0; |
83096483 | 1932 | |
0ec0deaa | 1933 | r = ordered_hashmap_ensure_allocated(&c->have_processed, &string_hash_ops); |
d25e100b LP |
1934 | if (r < 0) |
1935 | return r; | |
83096483 | 1936 | |
0ec0deaa | 1937 | while ((i = ordered_hashmap_first(c->will_process))) { |
83096483 | 1938 | |
0ec0deaa LP |
1939 | r = ordered_hashmap_move_one(c->have_processed, c->will_process, i->name); |
1940 | if (r < 0) | |
83096483 | 1941 | return r; |
29283ea4 | 1942 | |
e4bb56c7 | 1943 | r = install_info_traverse(scope, c, paths, i, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS, NULL); |
19539807 | 1944 | if (r == -ENOLINK) { |
637d6e5b LP |
1945 | log_debug_errno(r, "Name %s leads to a dangling symlink, removing name.", i->name); |
1946 | unit_file_changes_add(changes, n_changes, UNIT_FILE_IS_DANGLING, i->path ?: i->name, NULL); | |
1947 | } else if (r == -ENOENT) { | |
1948 | ||
1949 | if (i->auxiliary) /* some unit specified in Also= or similar is missing */ | |
1950 | log_debug_errno(r, "Auxiliary unit of %s not found, removing name.", i->name); | |
1951 | else { | |
1952 | log_debug_errno(r, "Unit %s not found, removing name.", i->name); | |
1953 | unit_file_changes_add(changes, n_changes, r, i->path ?: i->name, NULL); | |
1954 | } | |
0ec0deaa | 1955 | |
637d6e5b LP |
1956 | } else if (r < 0) { |
1957 | log_debug_errno(r, "Failed to find unit %s, removing name: %m", i->name); | |
1958 | unit_file_changes_add(changes, n_changes, r, i->path ?: i->name, NULL); | |
1959 | } else if (i->type == UNIT_FILE_TYPE_MASKED) { | |
1960 | log_debug("Unit file %s is masked, ignoring.", i->name); | |
1961 | unit_file_changes_add(changes, n_changes, UNIT_FILE_IS_MASKED, i->path ?: i->name, NULL); | |
1962 | continue; | |
1963 | } else if (i->type != UNIT_FILE_TYPE_REGULAR) { | |
1964 | log_debug("Unit %s has type %s, ignoring.", i->name, unit_file_type_to_string(i->type) ?: "invalid"); | |
0ec0deaa | 1965 | continue; |
64f9280e | 1966 | } |
0ec0deaa LP |
1967 | |
1968 | r = mark_symlink_for_removal(remove_symlinks_to, i->name); | |
1969 | if (r < 0) | |
1970 | return r; | |
1971 | } | |
1972 | ||
1973 | return 0; | |
1974 | } | |
1975 | ||
1976 | int unit_file_mask( | |
1977 | UnitFileScope scope, | |
b3796dd8 | 1978 | UnitFileFlags flags, |
0ec0deaa LP |
1979 | const char *root_dir, |
1980 | char **files, | |
0ec0deaa | 1981 | UnitFileChange **changes, |
da6053d0 | 1982 | size_t *n_changes) { |
0ec0deaa | 1983 | |
8e766630 | 1984 | _cleanup_(lookup_paths_free) LookupPaths paths = {}; |
e1c5c2b0 | 1985 | const char *config_path; |
0ec0deaa LP |
1986 | char **i; |
1987 | int r; | |
1988 | ||
1989 | assert(scope >= 0); | |
1990 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
1991 | ||
4943d143 | 1992 | r = lookup_paths_init(&paths, scope, 0, root_dir); |
0ec0deaa LP |
1993 | if (r < 0) |
1994 | return r; | |
1995 | ||
b3796dd8 | 1996 | config_path = (flags & UNIT_FILE_RUNTIME) ? paths.runtime_config : paths.persistent_config; |
d0fd66a3 LP |
1997 | if (!config_path) |
1998 | return -ENXIO; | |
e1c5c2b0 | 1999 | |
0ec0deaa LP |
2000 | STRV_FOREACH(i, files) { |
2001 | _cleanup_free_ char *path = NULL; | |
2002 | int q; | |
2003 | ||
2004 | if (!unit_name_is_valid(*i, UNIT_NAME_ANY)) { | |
2005 | if (r == 0) | |
2006 | r = -EINVAL; | |
2007 | continue; | |
2008 | } | |
2009 | ||
e1c5c2b0 | 2010 | path = path_make_absolute(*i, config_path); |
0ec0deaa LP |
2011 | if (!path) |
2012 | return -ENOMEM; | |
29283ea4 | 2013 | |
b3796dd8 | 2014 | q = create_symlink(&paths, "/dev/null", path, !!(flags & UNIT_FILE_FORCE), changes, n_changes); |
0ec0deaa | 2015 | if (q < 0 && r >= 0) |
83096483 LP |
2016 | r = q; |
2017 | } | |
2018 | ||
2019 | return r; | |
2020 | } | |
2021 | ||
0ec0deaa LP |
2022 | int unit_file_unmask( |
2023 | UnitFileScope scope, | |
b3796dd8 | 2024 | UnitFileFlags flags, |
0ec0deaa LP |
2025 | const char *root_dir, |
2026 | char **files, | |
2027 | UnitFileChange **changes, | |
da6053d0 | 2028 | size_t *n_changes) { |
0ec0deaa | 2029 | |
8e766630 | 2030 | _cleanup_(lookup_paths_free) LookupPaths paths = {}; |
0ec0deaa | 2031 | _cleanup_set_free_free_ Set *remove_symlinks_to = NULL; |
dc7dd61d | 2032 | _cleanup_strv_free_ char **todo = NULL; |
0ec0deaa | 2033 | size_t n_todo = 0, n_allocated = 0; |
e1c5c2b0 | 2034 | const char *config_path; |
0ec0deaa | 2035 | char **i; |
4910b350 | 2036 | bool dry_run = !!(flags & UNIT_FILE_DRY_RUN); |
0ec0deaa LP |
2037 | int r, q; |
2038 | ||
2039 | assert(scope >= 0); | |
2040 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
2041 | ||
4943d143 | 2042 | r = lookup_paths_init(&paths, scope, 0, root_dir); |
0ec0deaa LP |
2043 | if (r < 0) |
2044 | return r; | |
2045 | ||
2046 | STRV_FOREACH(i, files) { | |
0ec0deaa LP |
2047 | if (!unit_name_is_valid(*i, UNIT_NAME_ANY)) |
2048 | return -EINVAL; | |
2049 | ||
4910b350 ZJS |
2050 | FOREACH_STRING(config_path, paths.runtime_config, paths.persistent_config) { |
2051 | _cleanup_free_ char *path = NULL; | |
0ec0deaa | 2052 | |
4910b350 ZJS |
2053 | path = path_make_absolute(*i, config_path); |
2054 | if (!path) | |
2055 | return -ENOMEM; | |
0ec0deaa | 2056 | |
4910b350 ZJS |
2057 | r = null_or_empty_path(path); |
2058 | if (r == -ENOENT) | |
2059 | continue; | |
2060 | if (r < 0) | |
2061 | return r; | |
2062 | if (r == 0) | |
2063 | continue; | |
0ec0deaa | 2064 | |
4910b350 ZJS |
2065 | if (!GREEDY_REALLOC0(todo, n_allocated, n_todo + 2)) |
2066 | return -ENOMEM; | |
d054eae6 | 2067 | |
4910b350 ZJS |
2068 | todo[n_todo] = strdup(*i); |
2069 | if (!todo[n_todo]) | |
2070 | return -ENOMEM; | |
2071 | ||
2072 | n_todo++; | |
2073 | } | |
0ec0deaa LP |
2074 | } |
2075 | ||
2076 | strv_uniq(todo); | |
2077 | ||
2078 | r = 0; | |
4910b350 ZJS |
2079 | FOREACH_STRING(config_path, paths.runtime_config, paths.persistent_config) { |
2080 | STRV_FOREACH(i, todo) { | |
2081 | _cleanup_free_ char *path = NULL; | |
2082 | const char *rp; | |
0ec0deaa | 2083 | |
4910b350 ZJS |
2084 | path = path_make_absolute(*i, config_path); |
2085 | if (!path) | |
2086 | return -ENOMEM; | |
0ec0deaa | 2087 | |
4910b350 ZJS |
2088 | if (!dry_run && unlink(path) < 0) { |
2089 | if (errno != ENOENT) { | |
2090 | if (r >= 0) | |
2091 | r = -errno; | |
2092 | unit_file_changes_add(changes, n_changes, -errno, path, NULL); | |
2093 | } | |
2094 | ||
2095 | continue; | |
af3d8113 | 2096 | } |
0ec0deaa | 2097 | |
4910b350 | 2098 | unit_file_changes_add(changes, n_changes, UNIT_FILE_UNLINK, path, NULL); |
401017e0 | 2099 | |
4910b350 ZJS |
2100 | rp = skip_root(&paths, path); |
2101 | q = mark_symlink_for_removal(&remove_symlinks_to, rp ?: path); | |
2102 | if (q < 0) | |
2103 | return q; | |
2104 | } | |
401017e0 | 2105 | |
4910b350 ZJS |
2106 | q = remove_marked_symlinks(remove_symlinks_to, config_path, &paths, dry_run, changes, n_changes); |
2107 | if (r >= 0) | |
2108 | r = q; | |
0ec0deaa LP |
2109 | } |
2110 | ||
0ec0deaa LP |
2111 | return r; |
2112 | } | |
2113 | ||
2114 | int unit_file_link( | |
e94937df | 2115 | UnitFileScope scope, |
b3796dd8 | 2116 | UnitFileFlags flags, |
e94937df LN |
2117 | const char *root_dir, |
2118 | char **files, | |
e94937df | 2119 | UnitFileChange **changes, |
da6053d0 | 2120 | size_t *n_changes) { |
e94937df | 2121 | |
8e766630 | 2122 | _cleanup_(lookup_paths_free) LookupPaths paths = {}; |
8af35ba6 | 2123 | _cleanup_strv_free_ char **todo = NULL; |
0ec0deaa | 2124 | size_t n_todo = 0, n_allocated = 0; |
e1c5c2b0 | 2125 | const char *config_path; |
e94937df | 2126 | char **i; |
0ec0deaa | 2127 | int r, q; |
e94937df LN |
2128 | |
2129 | assert(scope >= 0); | |
2130 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
2131 | ||
4943d143 | 2132 | r = lookup_paths_init(&paths, scope, 0, root_dir); |
e94937df LN |
2133 | if (r < 0) |
2134 | return r; | |
2135 | ||
b3796dd8 | 2136 | config_path = (flags & UNIT_FILE_RUNTIME) ? paths.runtime_config : paths.persistent_config; |
d0fd66a3 LP |
2137 | if (!config_path) |
2138 | return -ENXIO; | |
e94937df LN |
2139 | |
2140 | STRV_FOREACH(i, files) { | |
0ec0deaa LP |
2141 | _cleanup_free_ char *full = NULL; |
2142 | struct stat st; | |
2143 | char *fn; | |
e94937df | 2144 | |
0ec0deaa LP |
2145 | if (!path_is_absolute(*i)) |
2146 | return -EINVAL; | |
e94937df | 2147 | |
0ec0deaa LP |
2148 | fn = basename(*i); |
2149 | if (!unit_name_is_valid(fn, UNIT_NAME_ANY)) | |
2150 | return -EINVAL; | |
2151 | ||
e4bb56c7 | 2152 | full = prefix_root(paths.root_dir, *i); |
0ec0deaa LP |
2153 | if (!full) |
2154 | return -ENOMEM; | |
2155 | ||
2156 | if (lstat(full, &st) < 0) | |
2157 | return -errno; | |
3cc44114 LP |
2158 | r = stat_verify_regular(&st); |
2159 | if (r < 0) | |
2160 | return r; | |
0ec0deaa | 2161 | |
32c0ed7b | 2162 | q = in_search_path(&paths, *i); |
0ec0deaa LP |
2163 | if (q < 0) |
2164 | return q; | |
2165 | if (q > 0) | |
2166 | continue; | |
2167 | ||
2168 | if (!GREEDY_REALLOC0(todo, n_allocated, n_todo + 2)) | |
2169 | return -ENOMEM; | |
2170 | ||
8af35ba6 EV |
2171 | todo[n_todo] = strdup(*i); |
2172 | if (!todo[n_todo]) | |
2173 | return -ENOMEM; | |
2174 | ||
2175 | n_todo++; | |
e94937df LN |
2176 | } |
2177 | ||
0ec0deaa | 2178 | strv_uniq(todo); |
e94937df | 2179 | |
0ec0deaa LP |
2180 | r = 0; |
2181 | STRV_FOREACH(i, todo) { | |
401017e0 | 2182 | _cleanup_free_ char *new_path = NULL; |
0ec0deaa | 2183 | |
401017e0 LP |
2184 | new_path = path_make_absolute(basename(*i), config_path); |
2185 | if (!new_path) | |
0ec0deaa LP |
2186 | return -ENOMEM; |
2187 | ||
b3796dd8 | 2188 | q = create_symlink(&paths, *i, new_path, !!(flags & UNIT_FILE_FORCE), changes, n_changes); |
0ec0deaa LP |
2189 | if (q < 0 && r >= 0) |
2190 | r = q; | |
2d5c93c7 MS |
2191 | } |
2192 | ||
0ec0deaa LP |
2193 | return r; |
2194 | } | |
2195 | ||
344ca755 LP |
2196 | static int path_shall_revert(const LookupPaths *paths, const char *path) { |
2197 | int r; | |
2198 | ||
2199 | assert(paths); | |
2200 | assert(path); | |
2201 | ||
2202 | /* Checks whether the path is one where the drop-in directories shall be removed. */ | |
2203 | ||
dfead90d | 2204 | r = path_is_config(paths, path, true); |
344ca755 LP |
2205 | if (r != 0) |
2206 | return r; | |
2207 | ||
2208 | r = path_is_control(paths, path); | |
2209 | if (r != 0) | |
2210 | return r; | |
2211 | ||
2212 | return path_is_transient(paths, path); | |
2213 | } | |
2214 | ||
2215 | int unit_file_revert( | |
2216 | UnitFileScope scope, | |
2217 | const char *root_dir, | |
2218 | char **files, | |
2219 | UnitFileChange **changes, | |
da6053d0 | 2220 | size_t *n_changes) { |
344ca755 LP |
2221 | |
2222 | _cleanup_set_free_free_ Set *remove_symlinks_to = NULL; | |
8e766630 | 2223 | _cleanup_(lookup_paths_free) LookupPaths paths = {}; |
344ca755 LP |
2224 | _cleanup_strv_free_ char **todo = NULL; |
2225 | size_t n_todo = 0, n_allocated = 0; | |
2226 | char **i; | |
2227 | int r, q; | |
2228 | ||
2229 | /* Puts a unit file back into vendor state. This means: | |
2230 | * | |
2231 | * a) we remove all drop-in snippets added by the user ("config"), add to transient units ("transient"), and | |
2232 | * added via "systemctl set-property" ("control"), but not if the drop-in is generated ("generated"). | |
2233 | * | |
2234 | * c) if there's a vendor unit file (i.e. one in /usr) we remove any configured overriding unit files (i.e. in | |
2235 | * "config", but not in "transient" or "control" or even "generated"). | |
2236 | * | |
4f25723c | 2237 | * We remove all that in both the runtime and the persistent directories, if that applies. |
344ca755 LP |
2238 | */ |
2239 | ||
2240 | r = lookup_paths_init(&paths, scope, 0, root_dir); | |
2241 | if (r < 0) | |
2242 | return r; | |
2243 | ||
2244 | STRV_FOREACH(i, files) { | |
2245 | bool has_vendor = false; | |
2246 | char **p; | |
2247 | ||
2248 | if (!unit_name_is_valid(*i, UNIT_NAME_ANY)) | |
2249 | return -EINVAL; | |
2250 | ||
2251 | STRV_FOREACH(p, paths.search_path) { | |
2252 | _cleanup_free_ char *path = NULL, *dropin = NULL; | |
2253 | struct stat st; | |
2254 | ||
2255 | path = path_make_absolute(*i, *p); | |
2256 | if (!path) | |
2257 | return -ENOMEM; | |
2258 | ||
2259 | r = lstat(path, &st); | |
2260 | if (r < 0) { | |
2261 | if (errno != ENOENT) | |
2262 | return -errno; | |
2263 | } else if (S_ISREG(st.st_mode)) { | |
2264 | /* Check if there's a vendor version */ | |
2265 | r = path_is_vendor(&paths, path); | |
2266 | if (r < 0) | |
2267 | return r; | |
2268 | if (r > 0) | |
2269 | has_vendor = true; | |
2270 | } | |
2271 | ||
2272 | dropin = strappend(path, ".d"); | |
2273 | if (!dropin) | |
2274 | return -ENOMEM; | |
2275 | ||
2276 | r = lstat(dropin, &st); | |
2277 | if (r < 0) { | |
2278 | if (errno != ENOENT) | |
2279 | return -errno; | |
2280 | } else if (S_ISDIR(st.st_mode)) { | |
2281 | /* Remove the drop-ins */ | |
2282 | r = path_shall_revert(&paths, dropin); | |
2283 | if (r < 0) | |
2284 | return r; | |
2285 | if (r > 0) { | |
2286 | if (!GREEDY_REALLOC0(todo, n_allocated, n_todo + 2)) | |
2287 | return -ENOMEM; | |
2288 | ||
1cc6c93a | 2289 | todo[n_todo++] = TAKE_PTR(dropin); |
344ca755 LP |
2290 | } |
2291 | } | |
2292 | } | |
2293 | ||
2294 | if (!has_vendor) | |
2295 | continue; | |
2296 | ||
2297 | /* OK, there's a vendor version, hence drop all configuration versions */ | |
2298 | STRV_FOREACH(p, paths.search_path) { | |
2299 | _cleanup_free_ char *path = NULL; | |
2300 | struct stat st; | |
2301 | ||
2302 | path = path_make_absolute(*i, *p); | |
2303 | if (!path) | |
2304 | return -ENOMEM; | |
2305 | ||
2306 | r = lstat(path, &st); | |
2307 | if (r < 0) { | |
2308 | if (errno != ENOENT) | |
2309 | return -errno; | |
2310 | } else if (S_ISREG(st.st_mode) || S_ISLNK(st.st_mode)) { | |
dfead90d | 2311 | r = path_is_config(&paths, path, true); |
344ca755 LP |
2312 | if (r < 0) |
2313 | return r; | |
2314 | if (r > 0) { | |
2315 | if (!GREEDY_REALLOC0(todo, n_allocated, n_todo + 2)) | |
2316 | return -ENOMEM; | |
2317 | ||
1cc6c93a | 2318 | todo[n_todo++] = TAKE_PTR(path); |
344ca755 LP |
2319 | } |
2320 | } | |
2321 | } | |
2322 | } | |
2323 | ||
2324 | strv_uniq(todo); | |
2325 | ||
2326 | r = 0; | |
2327 | STRV_FOREACH(i, todo) { | |
2328 | _cleanup_strv_free_ char **fs = NULL; | |
2329 | const char *rp; | |
2330 | char **j; | |
2331 | ||
2332 | (void) get_files_in_directory(*i, &fs); | |
2333 | ||
2334 | q = rm_rf(*i, REMOVE_ROOT|REMOVE_PHYSICAL); | |
2335 | if (q < 0 && q != -ENOENT && r >= 0) { | |
2336 | r = q; | |
2337 | continue; | |
2338 | } | |
2339 | ||
2340 | STRV_FOREACH(j, fs) { | |
2341 | _cleanup_free_ char *t = NULL; | |
2342 | ||
605405c6 | 2343 | t = strjoin(*i, "/", *j); |
344ca755 LP |
2344 | if (!t) |
2345 | return -ENOMEM; | |
2346 | ||
2347 | unit_file_changes_add(changes, n_changes, UNIT_FILE_UNLINK, t, NULL); | |
2348 | } | |
2349 | ||
2350 | unit_file_changes_add(changes, n_changes, UNIT_FILE_UNLINK, *i, NULL); | |
2351 | ||
2352 | rp = skip_root(&paths, *i); | |
2353 | q = mark_symlink_for_removal(&remove_symlinks_to, rp ?: *i); | |
2354 | if (q < 0) | |
2355 | return q; | |
2356 | } | |
2357 | ||
3b3557c4 | 2358 | q = remove_marked_symlinks(remove_symlinks_to, paths.runtime_config, &paths, false, changes, n_changes); |
344ca755 LP |
2359 | if (r >= 0) |
2360 | r = q; | |
2361 | ||
3b3557c4 | 2362 | q = remove_marked_symlinks(remove_symlinks_to, paths.persistent_config, &paths, false, changes, n_changes); |
344ca755 LP |
2363 | if (r >= 0) |
2364 | r = q; | |
2365 | ||
2366 | return r; | |
2367 | } | |
2368 | ||
0ec0deaa LP |
2369 | int unit_file_add_dependency( |
2370 | UnitFileScope scope, | |
b3796dd8 | 2371 | UnitFileFlags flags, |
0ec0deaa LP |
2372 | const char *root_dir, |
2373 | char **files, | |
2374 | const char *target, | |
2375 | UnitDependency dep, | |
0ec0deaa | 2376 | UnitFileChange **changes, |
da6053d0 | 2377 | size_t *n_changes) { |
0ec0deaa | 2378 | |
8e766630 | 2379 | _cleanup_(lookup_paths_free) LookupPaths paths = {}; |
0ec0deaa | 2380 | _cleanup_(install_context_done) InstallContext c = {}; |
0ec0deaa | 2381 | UnitFileInstallInfo *i, *target_info; |
e1c5c2b0 | 2382 | const char *config_path; |
0ec0deaa LP |
2383 | char **f; |
2384 | int r; | |
2385 | ||
2386 | assert(scope >= 0); | |
2387 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
2388 | assert(target); | |
2389 | ||
2390 | if (!IN_SET(dep, UNIT_WANTS, UNIT_REQUIRES)) | |
2391 | return -EINVAL; | |
2392 | ||
2393 | if (!unit_name_is_valid(target, UNIT_NAME_ANY)) | |
2394 | return -EINVAL; | |
2395 | ||
4943d143 | 2396 | r = lookup_paths_init(&paths, scope, 0, root_dir); |
0ec0deaa LP |
2397 | if (r < 0) |
2398 | return r; | |
2399 | ||
b3796dd8 | 2400 | config_path = (flags & UNIT_FILE_RUNTIME) ? paths.runtime_config : paths.persistent_config; |
d0fd66a3 LP |
2401 | if (!config_path) |
2402 | return -ENXIO; | |
0ec0deaa | 2403 | |
59108fbe ZJS |
2404 | r = install_info_discover(scope, &c, &paths, target, SEARCH_FOLLOW_CONFIG_SYMLINKS, |
2405 | &target_info, changes, n_changes); | |
0ec0deaa LP |
2406 | if (r < 0) |
2407 | return r; | |
af3d8113 | 2408 | r = install_info_may_process(target_info, &paths, changes, n_changes); |
76adb5b8 LP |
2409 | if (r < 0) |
2410 | return r; | |
0ec0deaa LP |
2411 | |
2412 | assert(target_info->type == UNIT_FILE_TYPE_REGULAR); | |
e94937df | 2413 | |
0ec0deaa LP |
2414 | STRV_FOREACH(f, files) { |
2415 | char ***l; | |
2416 | ||
59108fbe ZJS |
2417 | r = install_info_discover(scope, &c, &paths, *f, SEARCH_FOLLOW_CONFIG_SYMLINKS, |
2418 | &i, changes, n_changes); | |
e94937df LN |
2419 | if (r < 0) |
2420 | return r; | |
af3d8113 | 2421 | r = install_info_may_process(i, &paths, changes, n_changes); |
76adb5b8 LP |
2422 | if (r < 0) |
2423 | return r; | |
0ec0deaa LP |
2424 | |
2425 | assert(i->type == UNIT_FILE_TYPE_REGULAR); | |
2426 | ||
2427 | /* We didn't actually load anything from the unit | |
2428 | * file, but instead just add in our new symlink to | |
2429 | * create. */ | |
e94937df LN |
2430 | |
2431 | if (dep == UNIT_WANTS) | |
0ec0deaa | 2432 | l = &i->wanted_by; |
e94937df | 2433 | else |
0ec0deaa | 2434 | l = &i->required_by; |
e94937df | 2435 | |
0ec0deaa LP |
2436 | strv_free(*l); |
2437 | *l = strv_new(target_info->name, NULL); | |
2438 | if (!*l) | |
2439 | return -ENOMEM; | |
e94937df LN |
2440 | } |
2441 | ||
b3796dd8 | 2442 | return install_context_apply(scope, &c, &paths, config_path, !!(flags & UNIT_FILE_FORCE), SEARCH_FOLLOW_CONFIG_SYMLINKS, changes, n_changes); |
e94937df LN |
2443 | } |
2444 | ||
83096483 LP |
2445 | int unit_file_enable( |
2446 | UnitFileScope scope, | |
b3796dd8 | 2447 | UnitFileFlags flags, |
83096483 | 2448 | const char *root_dir, |
7195aa42 | 2449 | char **files, |
83096483 | 2450 | UnitFileChange **changes, |
da6053d0 | 2451 | size_t *n_changes) { |
83096483 | 2452 | |
8e766630 | 2453 | _cleanup_(lookup_paths_free) LookupPaths paths = {}; |
59ccf93d | 2454 | _cleanup_(install_context_done) InstallContext c = {}; |
e1c5c2b0 | 2455 | const char *config_path; |
0ec0deaa LP |
2456 | UnitFileInstallInfo *i; |
2457 | char **f; | |
83096483 LP |
2458 | int r; |
2459 | ||
2460 | assert(scope >= 0); | |
2461 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
2462 | ||
4943d143 | 2463 | r = lookup_paths_init(&paths, scope, 0, root_dir); |
83096483 LP |
2464 | if (r < 0) |
2465 | return r; | |
2466 | ||
b3796dd8 | 2467 | config_path = (flags & UNIT_FILE_RUNTIME) ? paths.runtime_config : paths.persistent_config; |
d0fd66a3 LP |
2468 | if (!config_path) |
2469 | return -ENXIO; | |
83096483 | 2470 | |
0ec0deaa | 2471 | STRV_FOREACH(f, files) { |
59108fbe ZJS |
2472 | r = install_info_discover(scope, &c, &paths, *f, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS, |
2473 | &i, changes, n_changes); | |
83096483 | 2474 | if (r < 0) |
d9e5e694 | 2475 | return r; |
af3d8113 | 2476 | r = install_info_may_process(i, &paths, changes, n_changes); |
76adb5b8 LP |
2477 | if (r < 0) |
2478 | return r; | |
0ec0deaa LP |
2479 | |
2480 | assert(i->type == UNIT_FILE_TYPE_REGULAR); | |
83096483 LP |
2481 | } |
2482 | ||
729e3769 | 2483 | /* This will return the number of symlink rules that were |
d25e100b LP |
2484 | supposed to be created, not the ones actually created. This |
2485 | is useful to determine whether the passed files had any | |
2486 | installation data at all. */ | |
b91a3b02 | 2487 | |
b3796dd8 | 2488 | return install_context_apply(scope, &c, &paths, config_path, !!(flags & UNIT_FILE_FORCE), SEARCH_LOAD, changes, n_changes); |
83096483 LP |
2489 | } |
2490 | ||
2491 | int unit_file_disable( | |
2492 | UnitFileScope scope, | |
b3796dd8 | 2493 | UnitFileFlags flags, |
83096483 | 2494 | const char *root_dir, |
7195aa42 | 2495 | char **files, |
83096483 | 2496 | UnitFileChange **changes, |
da6053d0 | 2497 | size_t *n_changes) { |
83096483 | 2498 | |
8e766630 | 2499 | _cleanup_(lookup_paths_free) LookupPaths paths = {}; |
59ccf93d | 2500 | _cleanup_(install_context_done) InstallContext c = {}; |
7fd1b19b | 2501 | _cleanup_set_free_free_ Set *remove_symlinks_to = NULL; |
4910b350 | 2502 | bool dry_run = !!(flags & UNIT_FILE_DRY_RUN); |
e1c5c2b0 | 2503 | const char *config_path; |
0ec0deaa LP |
2504 | char **i; |
2505 | int r; | |
83096483 LP |
2506 | |
2507 | assert(scope >= 0); | |
2508 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
2509 | ||
4943d143 | 2510 | r = lookup_paths_init(&paths, scope, 0, root_dir); |
83096483 LP |
2511 | if (r < 0) |
2512 | return r; | |
2513 | ||
83096483 | 2514 | STRV_FOREACH(i, files) { |
0ec0deaa LP |
2515 | if (!unit_name_is_valid(*i, UNIT_NAME_ANY)) |
2516 | return -EINVAL; | |
2517 | ||
19539807 | 2518 | r = install_info_add(&c, *i, NULL, false, NULL); |
83096483 | 2519 | if (r < 0) |
d9e5e694 | 2520 | return r; |
83096483 LP |
2521 | } |
2522 | ||
4910b350 | 2523 | r = install_context_mark_for_removal(scope, &c, &paths, &remove_symlinks_to, changes, n_changes); |
0ec0deaa LP |
2524 | if (r < 0) |
2525 | return r; | |
83096483 | 2526 | |
4910b350 ZJS |
2527 | FOREACH_STRING(config_path, paths.runtime_config, paths.persistent_config) { |
2528 | r = remove_marked_symlinks(remove_symlinks_to, config_path, &paths, dry_run, changes, n_changes); | |
2529 | if (r < 0) | |
2530 | return r; | |
2531 | } | |
2532 | ||
2533 | return 0; | |
83096483 LP |
2534 | } |
2535 | ||
2536 | int unit_file_reenable( | |
2537 | UnitFileScope scope, | |
b3796dd8 | 2538 | UnitFileFlags flags, |
83096483 | 2539 | const char *root_dir, |
7195aa42 | 2540 | char **files, |
83096483 | 2541 | UnitFileChange **changes, |
da6053d0 | 2542 | size_t *n_changes) { |
0ec0deaa LP |
2543 | |
2544 | char **n; | |
92d430a9 | 2545 | int r; |
0ec0deaa | 2546 | size_t l, i; |
83096483 | 2547 | |
0ec0deaa LP |
2548 | /* First, we invoke the disable command with only the basename... */ |
2549 | l = strv_length(files); | |
2550 | n = newa(char*, l+1); | |
2551 | for (i = 0; i < l; i++) | |
2552 | n[i] = basename(files[i]); | |
2553 | n[i] = NULL; | |
2554 | ||
b3796dd8 | 2555 | r = unit_file_disable(scope, flags, root_dir, n, changes, n_changes); |
83096483 | 2556 | if (r < 0) |
d9e5e694 | 2557 | return r; |
83096483 | 2558 | |
0ec0deaa | 2559 | /* But the enable command with the full name */ |
b3796dd8 | 2560 | return unit_file_enable(scope, flags, root_dir, files, changes, n_changes); |
83096483 LP |
2561 | } |
2562 | ||
99504dd4 VP |
2563 | int unit_file_set_default( |
2564 | UnitFileScope scope, | |
b3796dd8 | 2565 | UnitFileFlags flags, |
99504dd4 | 2566 | const char *root_dir, |
0ec0deaa | 2567 | const char *name, |
99504dd4 | 2568 | UnitFileChange **changes, |
da6053d0 | 2569 | size_t *n_changes) { |
99504dd4 | 2570 | |
8e766630 | 2571 | _cleanup_(lookup_paths_free) LookupPaths paths = {}; |
59ccf93d | 2572 | _cleanup_(install_context_done) InstallContext c = {}; |
0ec0deaa | 2573 | UnitFileInstallInfo *i; |
60bec8e4 | 2574 | const char *new_path; |
99504dd4 | 2575 | int r; |
99504dd4 VP |
2576 | |
2577 | assert(scope >= 0); | |
2578 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
0ec0deaa | 2579 | assert(name); |
99504dd4 | 2580 | |
401017e0 | 2581 | if (unit_name_to_type(name) != UNIT_TARGET) /* this also validates the name */ |
0ec0deaa LP |
2582 | return -EINVAL; |
2583 | if (streq(name, SPECIAL_DEFAULT_TARGET)) | |
99504dd4 VP |
2584 | return -EINVAL; |
2585 | ||
4943d143 | 2586 | r = lookup_paths_init(&paths, scope, 0, root_dir); |
99504dd4 VP |
2587 | if (r < 0) |
2588 | return r; | |
2589 | ||
59108fbe | 2590 | r = install_info_discover(scope, &c, &paths, name, 0, &i, changes, n_changes); |
99504dd4 VP |
2591 | if (r < 0) |
2592 | return r; | |
af3d8113 | 2593 | r = install_info_may_process(i, &paths, changes, n_changes); |
76adb5b8 LP |
2594 | if (r < 0) |
2595 | return r; | |
99504dd4 | 2596 | |
401017e0 | 2597 | new_path = strjoina(paths.persistent_config, "/" SPECIAL_DEFAULT_TARGET); |
b3796dd8 | 2598 | return create_symlink(&paths, i->path, new_path, !!(flags & UNIT_FILE_FORCE), changes, n_changes); |
99504dd4 VP |
2599 | } |
2600 | ||
2601 | int unit_file_get_default( | |
2602 | UnitFileScope scope, | |
2603 | const char *root_dir, | |
2604 | char **name) { | |
2605 | ||
8e766630 | 2606 | _cleanup_(lookup_paths_free) LookupPaths paths = {}; |
0ec0deaa LP |
2607 | _cleanup_(install_context_done) InstallContext c = {}; |
2608 | UnitFileInstallInfo *i; | |
2609 | char *n; | |
99504dd4 VP |
2610 | int r; |
2611 | ||
16ed0233 LP |
2612 | assert(scope >= 0); |
2613 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
2614 | assert(name); | |
2615 | ||
4943d143 | 2616 | r = lookup_paths_init(&paths, scope, 0, root_dir); |
0ec0deaa LP |
2617 | if (r < 0) |
2618 | return r; | |
99504dd4 | 2619 | |
59108fbe ZJS |
2620 | r = install_info_discover(scope, &c, &paths, SPECIAL_DEFAULT_TARGET, SEARCH_FOLLOW_CONFIG_SYMLINKS, |
2621 | &i, NULL, NULL); | |
0ec0deaa LP |
2622 | if (r < 0) |
2623 | return r; | |
af3d8113 | 2624 | r = install_info_may_process(i, &paths, NULL, 0); |
76adb5b8 LP |
2625 | if (r < 0) |
2626 | return r; | |
99504dd4 | 2627 | |
0ec0deaa LP |
2628 | n = strdup(i->name); |
2629 | if (!n) | |
2630 | return -ENOMEM; | |
99504dd4 | 2631 | |
0ec0deaa LP |
2632 | *name = n; |
2633 | return 0; | |
99504dd4 VP |
2634 | } |
2635 | ||
d6d98276 | 2636 | int unit_file_lookup_state( |
83096483 | 2637 | UnitFileScope scope, |
a8ffe6fb | 2638 | const LookupPaths *paths, |
0ec0deaa LP |
2639 | const char *name, |
2640 | UnitFileState *ret) { | |
83096483 | 2641 | |
0ec0deaa LP |
2642 | _cleanup_(install_context_done) InstallContext c = {}; |
2643 | UnitFileInstallInfo *i; | |
2644 | UnitFileState state; | |
2645 | int r; | |
83096483 | 2646 | |
a8ffe6fb | 2647 | assert(paths); |
0ec0deaa | 2648 | assert(name); |
83096483 | 2649 | |
7410616c | 2650 | if (!unit_name_is_valid(name, UNIT_NAME_ANY)) |
83096483 LP |
2651 | return -EINVAL; |
2652 | ||
59108fbe ZJS |
2653 | r = install_info_discover(scope, &c, paths, name, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS, |
2654 | &i, NULL, NULL); | |
0ec0deaa LP |
2655 | if (r < 0) |
2656 | return r; | |
83096483 | 2657 | |
0ec0deaa LP |
2658 | /* Shortcut things, if the caller just wants to know if this unit exists. */ |
2659 | if (!ret) | |
2660 | return 0; | |
83096483 | 2661 | |
0ec0deaa | 2662 | switch (i->type) { |
67820a0c | 2663 | |
0ec0deaa | 2664 | case UNIT_FILE_TYPE_MASKED: |
dfead90d | 2665 | r = path_is_runtime(paths, i->path, true); |
385eb996 LP |
2666 | if (r < 0) |
2667 | return r; | |
2668 | ||
2669 | state = r > 0 ? UNIT_FILE_MASKED_RUNTIME : UNIT_FILE_MASKED; | |
0ec0deaa | 2670 | break; |
83096483 | 2671 | |
0ec0deaa | 2672 | case UNIT_FILE_TYPE_REGULAR: |
f4dc1e65 | 2673 | r = path_is_generator(paths, i->path); |
f4139308 LP |
2674 | if (r < 0) |
2675 | return r; | |
2676 | if (r > 0) { | |
2677 | state = UNIT_FILE_GENERATED; | |
2678 | break; | |
2679 | } | |
2680 | ||
e4fca67f LP |
2681 | r = path_is_transient(paths, i->path); |
2682 | if (r < 0) | |
2683 | return r; | |
2684 | if (r > 0) { | |
2685 | state = UNIT_FILE_TRANSIENT; | |
2686 | break; | |
2687 | } | |
2688 | ||
5cd8ae31 ZJS |
2689 | /* Check if any of the Alias= symlinks have been created. |
2690 | * We ignore other aliases, and only check those that would | |
2691 | * be created by systemctl enable for this unit. */ | |
d2561cfd | 2692 | r = find_symlinks_in_scope(scope, paths, i, true, &state); |
d9b4b48f ZJS |
2693 | if (r < 0) |
2694 | return r; | |
2695 | if (r > 0) | |
2696 | break; | |
2697 | ||
2698 | /* Check if the file is known under other names. If it is, | |
2699 | * it might be in use. Report that as UNIT_FILE_INDIRECT. */ | |
d2561cfd | 2700 | r = find_symlinks_in_scope(scope, paths, i, false, &state); |
d9e5e694 ZJS |
2701 | if (r < 0) |
2702 | return r; | |
d9b4b48f ZJS |
2703 | if (r > 0) |
2704 | state = UNIT_FILE_INDIRECT; | |
2705 | else { | |
7a7ec2bf | 2706 | if (unit_file_install_info_has_rules(i)) |
0ec0deaa | 2707 | state = UNIT_FILE_DISABLED; |
7a7ec2bf | 2708 | else if (unit_file_install_info_has_also(i)) |
0ec0deaa LP |
2709 | state = UNIT_FILE_INDIRECT; |
2710 | else | |
2711 | state = UNIT_FILE_STATIC; | |
2712 | } | |
83096483 | 2713 | |
0ec0deaa LP |
2714 | break; |
2715 | ||
2716 | default: | |
2717 | assert_not_reached("Unexpect unit file type."); | |
83096483 LP |
2718 | } |
2719 | ||
0ec0deaa LP |
2720 | *ret = state; |
2721 | return 0; | |
83096483 LP |
2722 | } |
2723 | ||
0ec0deaa | 2724 | int unit_file_get_state( |
a8ffe6fb ZJS |
2725 | UnitFileScope scope, |
2726 | const char *root_dir, | |
0ec0deaa LP |
2727 | const char *name, |
2728 | UnitFileState *ret) { | |
a8ffe6fb | 2729 | |
8e766630 | 2730 | _cleanup_(lookup_paths_free) LookupPaths paths = {}; |
a8ffe6fb ZJS |
2731 | int r; |
2732 | ||
2733 | assert(scope >= 0); | |
2734 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
2735 | assert(name); | |
2736 | ||
4943d143 | 2737 | r = lookup_paths_init(&paths, scope, 0, root_dir); |
a8ffe6fb ZJS |
2738 | if (r < 0) |
2739 | return r; | |
2740 | ||
e4bb56c7 | 2741 | return unit_file_lookup_state(scope, &paths, name, ret); |
a8ffe6fb ZJS |
2742 | } |
2743 | ||
e735decc LP |
2744 | int unit_file_exists(UnitFileScope scope, const LookupPaths *paths, const char *name) { |
2745 | _cleanup_(install_context_done) InstallContext c = {}; | |
2746 | int r; | |
2747 | ||
2748 | assert(paths); | |
2749 | assert(name); | |
2750 | ||
2751 | if (!unit_name_is_valid(name, UNIT_NAME_ANY)) | |
2752 | return -EINVAL; | |
2753 | ||
59108fbe | 2754 | r = install_info_discover(scope, &c, paths, name, 0, NULL, NULL, NULL); |
e735decc LP |
2755 | if (r == -ENOENT) |
2756 | return 0; | |
2757 | if (r < 0) | |
2758 | return r; | |
2759 | ||
2760 | return 1; | |
2761 | } | |
2762 | ||
8965d9f8 AC |
2763 | static int read_presets(UnitFileScope scope, const char *root_dir, Presets *presets) { |
2764 | _cleanup_(presets_freep) Presets ps = {}; | |
2765 | size_t n_allocated = 0; | |
7fd1b19b | 2766 | _cleanup_strv_free_ char **files = NULL; |
cba2ef02 | 2767 | char **p; |
83096483 LP |
2768 | int r; |
2769 | ||
2770 | assert(scope >= 0); | |
2771 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
8965d9f8 | 2772 | assert(presets); |
0ec0deaa | 2773 | |
264afce0 FB |
2774 | switch (scope) { |
2775 | case UNIT_FILE_SYSTEM: | |
b5084605 | 2776 | r = conf_files_list(&files, ".preset", root_dir, 0, |
a7480dba | 2777 | "/etc/systemd/system-preset", |
7c59ab4b | 2778 | "/run/systemd/system-preset", |
a7480dba LP |
2779 | "/usr/local/lib/systemd/system-preset", |
2780 | "/usr/lib/systemd/system-preset", | |
349cc4a5 | 2781 | #if HAVE_SPLIT_USR |
a7480dba | 2782 | "/lib/systemd/system-preset", |
b4bdfefa | 2783 | #endif |
83096483 | 2784 | NULL); |
264afce0 FB |
2785 | break; |
2786 | ||
2787 | case UNIT_FILE_GLOBAL: | |
2788 | case UNIT_FILE_USER: | |
b5084605 | 2789 | r = conf_files_list(&files, ".preset", root_dir, 0, |
a7480dba | 2790 | "/etc/systemd/user-preset", |
7c59ab4b | 2791 | "/run/systemd/user-preset", |
a7480dba LP |
2792 | "/usr/local/lib/systemd/user-preset", |
2793 | "/usr/lib/systemd/user-preset", | |
83096483 | 2794 | NULL); |
264afce0 | 2795 | break; |
8965d9f8 | 2796 | |
264afce0 FB |
2797 | default: |
2798 | assert_not_reached("Invalid unit file scope"); | |
8965d9f8 | 2799 | } |
83096483 LP |
2800 | |
2801 | if (r < 0) | |
2802 | return r; | |
2803 | ||
cba2ef02 | 2804 | STRV_FOREACH(p, files) { |
7fd1b19b | 2805 | _cleanup_fclose_ FILE *f; |
0ec0deaa | 2806 | char line[LINE_MAX]; |
d544d1a4 | 2807 | int n = 0; |
83096483 | 2808 | |
cba2ef02 | 2809 | f = fopen(*p, "re"); |
83096483 LP |
2810 | if (!f) { |
2811 | if (errno == ENOENT) | |
2812 | continue; | |
2813 | ||
d9e5e694 | 2814 | return -errno; |
83096483 LP |
2815 | } |
2816 | ||
0ec0deaa | 2817 | FOREACH_LINE(line, f, return -errno) { |
8965d9f8 | 2818 | PresetRule rule = {}; |
0ec0deaa LP |
2819 | const char *parameter; |
2820 | char *l; | |
83096483 LP |
2821 | |
2822 | l = strstrip(line); | |
d544d1a4 | 2823 | n++; |
83096483 | 2824 | |
0ec0deaa LP |
2825 | if (isempty(l)) |
2826 | continue; | |
2827 | if (strchr(COMMENTS, *l)) | |
83096483 LP |
2828 | continue; |
2829 | ||
0ec0deaa LP |
2830 | parameter = first_word(l, "enable"); |
2831 | if (parameter) { | |
8965d9f8 | 2832 | char *pattern; |
d9e5e694 | 2833 | |
8965d9f8 AC |
2834 | pattern = strdup(parameter); |
2835 | if (!pattern) | |
2836 | return -ENOMEM; | |
2837 | ||
2838 | rule = (PresetRule) { | |
2839 | .pattern = pattern, | |
2840 | .action = PRESET_ENABLE, | |
2841 | }; | |
0ec0deaa | 2842 | } |
83096483 | 2843 | |
0ec0deaa LP |
2844 | parameter = first_word(l, "disable"); |
2845 | if (parameter) { | |
8965d9f8 | 2846 | char *pattern; |
d9e5e694 | 2847 | |
8965d9f8 AC |
2848 | pattern = strdup(parameter); |
2849 | if (!pattern) | |
2850 | return -ENOMEM; | |
2851 | ||
2852 | rule = (PresetRule) { | |
2853 | .pattern = pattern, | |
2854 | .action = PRESET_DISABLE, | |
2855 | }; | |
2856 | } | |
2857 | ||
2858 | if (rule.action) { | |
2859 | if (!GREEDY_REALLOC(ps.rules, n_allocated, ps.n_rules + 1)) | |
2860 | return -ENOMEM; | |
2861 | ||
2862 | ps.rules[ps.n_rules++] = rule; | |
0ec0deaa LP |
2863 | continue; |
2864 | } | |
2865 | ||
d544d1a4 | 2866 | log_syntax(NULL, LOG_WARNING, *p, n, 0, "Couldn't parse line '%s'. Ignoring.", line); |
83096483 | 2867 | } |
83096483 LP |
2868 | } |
2869 | ||
8965d9f8 AC |
2870 | *presets = ps; |
2871 | ps = (Presets){}; | |
2872 | ||
2873 | return 0; | |
2874 | } | |
2875 | ||
2876 | static int query_presets(const char *name, const Presets presets) { | |
2877 | PresetAction action = PRESET_UNKNOWN; | |
2878 | size_t i; | |
2879 | ||
2880 | if (!unit_name_is_valid(name, UNIT_NAME_ANY)) | |
2881 | return -EINVAL; | |
2882 | ||
2883 | for (i = 0; i < presets.n_rules; i++) | |
2884 | if (fnmatch(presets.rules[i].pattern, name, FNM_NOESCAPE) == 0) { | |
2885 | action = presets.rules[i].action; | |
2886 | break; | |
2887 | } | |
2888 | ||
2889 | switch (action) { | |
2890 | case PRESET_UNKNOWN: | |
2891 | log_debug("Preset files don't specify rule for %s. Enabling.", name); | |
2892 | return 1; | |
2893 | case PRESET_ENABLE: | |
2894 | log_debug("Preset files say enable %s.", name); | |
2895 | return 1; | |
2896 | case PRESET_DISABLE: | |
2897 | log_debug("Preset files say disable %s.", name); | |
2898 | return 0; | |
2899 | default: | |
2900 | assert_not_reached("invalid preset action"); | |
2901 | } | |
2902 | } | |
2903 | ||
2904 | int unit_file_query_preset(UnitFileScope scope, const char *root_dir, const char *name) { | |
2905 | _cleanup_(presets_freep) Presets presets = {}; | |
2906 | int r; | |
2907 | ||
2908 | r = read_presets(scope, root_dir, &presets); | |
2909 | if (r < 0) | |
2910 | return r; | |
2911 | ||
2912 | return query_presets(name, presets); | |
83096483 LP |
2913 | } |
2914 | ||
0ec0deaa LP |
2915 | static int execute_preset( |
2916 | UnitFileScope scope, | |
4910b350 | 2917 | UnitFileFlags flags, |
0ec0deaa LP |
2918 | InstallContext *plus, |
2919 | InstallContext *minus, | |
2920 | const LookupPaths *paths, | |
0ec0deaa LP |
2921 | char **files, |
2922 | UnitFilePresetMode mode, | |
0ec0deaa | 2923 | UnitFileChange **changes, |
da6053d0 | 2924 | size_t *n_changes) { |
0ec0deaa | 2925 | |
4910b350 ZJS |
2926 | const char *config_path; |
2927 | bool force = !!(flags & UNIT_FILE_FORCE); | |
2928 | bool runtime = !!(flags & UNIT_FILE_RUNTIME); | |
2929 | int r = 0, q; | |
0ec0deaa LP |
2930 | |
2931 | assert(plus); | |
2932 | assert(minus); | |
2933 | assert(paths); | |
0ec0deaa LP |
2934 | |
2935 | if (mode != UNIT_FILE_PRESET_ENABLE_ONLY) { | |
2936 | _cleanup_set_free_free_ Set *remove_symlinks_to = NULL; | |
2937 | ||
4910b350 ZJS |
2938 | q = install_context_mark_for_removal(scope, minus, paths, &remove_symlinks_to, changes, n_changes); |
2939 | if (q < 0) | |
2940 | return q; | |
0ec0deaa | 2941 | |
4910b350 ZJS |
2942 | FOREACH_STRING(config_path, paths->runtime_config, paths->persistent_config) { |
2943 | q = remove_marked_symlinks(remove_symlinks_to, config_path, paths, false, changes, n_changes); | |
2944 | if (r == 0) | |
2945 | r = q; | |
2946 | } | |
2947 | } | |
0ec0deaa LP |
2948 | |
2949 | if (mode != UNIT_FILE_PRESET_DISABLE_ONLY) { | |
0ec0deaa | 2950 | /* Returns number of symlinks that where supposed to be installed. */ |
4910b350 ZJS |
2951 | q = install_context_apply(scope, plus, paths, |
2952 | runtime ? paths->runtime_config : paths->persistent_config, | |
2953 | force, SEARCH_LOAD, changes, n_changes); | |
2954 | if (r == 0) | |
2955 | r = q; | |
0ec0deaa LP |
2956 | } |
2957 | ||
2958 | return r; | |
2959 | } | |
2960 | ||
2961 | static int preset_prepare_one( | |
2962 | UnitFileScope scope, | |
2963 | InstallContext *plus, | |
2964 | InstallContext *minus, | |
2965 | LookupPaths *paths, | |
af3d8113 | 2966 | const char *name, |
8965d9f8 | 2967 | Presets presets, |
af3d8113 | 2968 | UnitFileChange **changes, |
da6053d0 | 2969 | size_t *n_changes) { |
0ec0deaa | 2970 | |
11e11fd5 | 2971 | _cleanup_(install_context_done) InstallContext tmp = {}; |
0ec0deaa LP |
2972 | UnitFileInstallInfo *i; |
2973 | int r; | |
2974 | ||
11e11fd5 | 2975 | if (install_info_find(plus, name) || install_info_find(minus, name)) |
0ec0deaa LP |
2976 | return 0; |
2977 | ||
59108fbe ZJS |
2978 | r = install_info_discover(scope, &tmp, paths, name, SEARCH_FOLLOW_CONFIG_SYMLINKS, |
2979 | &i, changes, n_changes); | |
11e11fd5 ZJS |
2980 | if (r < 0) |
2981 | return r; | |
2982 | if (!streq(name, i->name)) { | |
10d67460 | 2983 | log_debug("Skipping %s because it is an alias for %s.", name, i->name); |
11e11fd5 ZJS |
2984 | return 0; |
2985 | } | |
2986 | ||
8965d9f8 | 2987 | r = query_presets(name, presets); |
0ec0deaa LP |
2988 | if (r < 0) |
2989 | return r; | |
2990 | ||
2991 | if (r > 0) { | |
59108fbe ZJS |
2992 | r = install_info_discover(scope, plus, paths, name, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS, |
2993 | &i, changes, n_changes); | |
0ec0deaa LP |
2994 | if (r < 0) |
2995 | return r; | |
2996 | ||
af3d8113 | 2997 | r = install_info_may_process(i, paths, changes, n_changes); |
76adb5b8 LP |
2998 | if (r < 0) |
2999 | return r; | |
0ec0deaa | 3000 | } else |
59108fbe ZJS |
3001 | r = install_info_discover(scope, minus, paths, name, SEARCH_FOLLOW_CONFIG_SYMLINKS, |
3002 | &i, changes, n_changes); | |
0ec0deaa LP |
3003 | |
3004 | return r; | |
3005 | } | |
3006 | ||
83096483 LP |
3007 | int unit_file_preset( |
3008 | UnitFileScope scope, | |
b3796dd8 | 3009 | UnitFileFlags flags, |
83096483 | 3010 | const char *root_dir, |
7195aa42 | 3011 | char **files, |
d309c1c3 | 3012 | UnitFilePresetMode mode, |
83096483 | 3013 | UnitFileChange **changes, |
da6053d0 | 3014 | size_t *n_changes) { |
83096483 | 3015 | |
59ccf93d | 3016 | _cleanup_(install_context_done) InstallContext plus = {}, minus = {}; |
8e766630 | 3017 | _cleanup_(lookup_paths_free) LookupPaths paths = {}; |
8965d9f8 | 3018 | _cleanup_(presets_freep) Presets presets = {}; |
da39f6a6 | 3019 | char **i; |
0ec0deaa | 3020 | int r; |
83096483 LP |
3021 | |
3022 | assert(scope >= 0); | |
3023 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
86bbe5bf | 3024 | assert(mode < _UNIT_FILE_PRESET_MAX); |
83096483 | 3025 | |
4943d143 | 3026 | r = lookup_paths_init(&paths, scope, 0, root_dir); |
83096483 LP |
3027 | if (r < 0) |
3028 | return r; | |
3029 | ||
8965d9f8 AC |
3030 | r = read_presets(scope, root_dir, &presets); |
3031 | if (r < 0) | |
3032 | return r; | |
83096483 | 3033 | |
8965d9f8 | 3034 | STRV_FOREACH(i, files) { |
ff56349d | 3035 | r = preset_prepare_one(scope, &plus, &minus, &paths, *i, presets, changes, n_changes); |
83096483 | 3036 | if (r < 0) |
d9e5e694 | 3037 | return r; |
83096483 LP |
3038 | } |
3039 | ||
4910b350 | 3040 | return execute_preset(scope, flags, &plus, &minus, &paths, files, mode, changes, n_changes); |
d309c1c3 LP |
3041 | } |
3042 | ||
3043 | int unit_file_preset_all( | |
3044 | UnitFileScope scope, | |
b3796dd8 | 3045 | UnitFileFlags flags, |
d309c1c3 LP |
3046 | const char *root_dir, |
3047 | UnitFilePresetMode mode, | |
d309c1c3 | 3048 | UnitFileChange **changes, |
da6053d0 | 3049 | size_t *n_changes) { |
d309c1c3 | 3050 | |
59ccf93d | 3051 | _cleanup_(install_context_done) InstallContext plus = {}, minus = {}; |
8e766630 | 3052 | _cleanup_(lookup_paths_free) LookupPaths paths = {}; |
8965d9f8 | 3053 | _cleanup_(presets_freep) Presets presets = {}; |
d309c1c3 | 3054 | char **i; |
0ec0deaa | 3055 | int r; |
d309c1c3 LP |
3056 | |
3057 | assert(scope >= 0); | |
3058 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
86bbe5bf | 3059 | assert(mode < _UNIT_FILE_PRESET_MAX); |
d309c1c3 | 3060 | |
4943d143 | 3061 | r = lookup_paths_init(&paths, scope, 0, root_dir); |
d309c1c3 LP |
3062 | if (r < 0) |
3063 | return r; | |
3064 | ||
8965d9f8 AC |
3065 | r = read_presets(scope, root_dir, &presets); |
3066 | if (r < 0) | |
3067 | return r; | |
3068 | ||
a3c4eb07 | 3069 | STRV_FOREACH(i, paths.search_path) { |
d309c1c3 | 3070 | _cleanup_closedir_ DIR *d = NULL; |
d25e100b | 3071 | struct dirent *de; |
d309c1c3 | 3072 | |
401017e0 | 3073 | d = opendir(*i); |
d309c1c3 LP |
3074 | if (!d) { |
3075 | if (errno == ENOENT) | |
3076 | continue; | |
3077 | ||
3078 | return -errno; | |
3079 | } | |
3080 | ||
d25e100b | 3081 | FOREACH_DIRENT(de, d, return -errno) { |
7410616c | 3082 | if (!unit_name_is_valid(de->d_name, UNIT_NAME_ANY)) |
d309c1c3 LP |
3083 | continue; |
3084 | ||
3085 | dirent_ensure_type(d, de); | |
3086 | ||
0ec0deaa | 3087 | if (!IN_SET(de->d_type, DT_LNK, DT_REG)) |
d309c1c3 LP |
3088 | continue; |
3089 | ||
af3d8113 | 3090 | /* we don't pass changes[] in, because we want to handle errors on our own */ |
ff56349d | 3091 | r = preset_prepare_one(scope, &plus, &minus, &paths, de->d_name, presets, NULL, 0); |
9a0a413a ZJS |
3092 | if (r == -ERFKILL) |
3093 | r = unit_file_changes_add(changes, n_changes, | |
3094 | UNIT_FILE_IS_MASKED, de->d_name, NULL); | |
893275df ZJS |
3095 | else if (r == -ENOLINK) |
3096 | r = unit_file_changes_add(changes, n_changes, | |
3097 | UNIT_FILE_IS_DANGLING, de->d_name, NULL); | |
26421228 LP |
3098 | else if (r == -EADDRNOTAVAIL) /* Ignore generated/transient units when applying preset */ |
3099 | continue; | |
d309c1c3 LP |
3100 | if (r < 0) |
3101 | return r; | |
3102 | } | |
3103 | } | |
3104 | ||
4910b350 | 3105 | return execute_preset(scope, flags, &plus, &minus, &paths, NULL, mode, changes, n_changes); |
83096483 LP |
3106 | } |
3107 | ||
59ccf93d LP |
3108 | static void unit_file_list_free_one(UnitFileList *f) { |
3109 | if (!f) | |
d9e5e694 ZJS |
3110 | return; |
3111 | ||
59ccf93d LP |
3112 | free(f->path); |
3113 | free(f); | |
d9e5e694 | 3114 | } |
59ccf93d | 3115 | |
0ec0deaa | 3116 | Hashmap* unit_file_list_free(Hashmap *h) { |
224b0e7a | 3117 | return hashmap_free_with_destructor(h, unit_file_list_free_one); |
0ec0deaa LP |
3118 | } |
3119 | ||
59ccf93d | 3120 | DEFINE_TRIVIAL_CLEANUP_FUNC(UnitFileList*, unit_file_list_free_one); |
d9e5e694 | 3121 | |
83096483 LP |
3122 | int unit_file_get_list( |
3123 | UnitFileScope scope, | |
3124 | const char *root_dir, | |
313fe66f | 3125 | Hashmap *h, |
3126 | char **states, | |
3127 | char **patterns) { | |
83096483 | 3128 | |
8e766630 | 3129 | _cleanup_(lookup_paths_free) LookupPaths paths = {}; |
d9e5e694 | 3130 | char **i; |
83096483 LP |
3131 | int r; |
3132 | ||
3133 | assert(scope >= 0); | |
3134 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
3135 | assert(h); | |
3136 | ||
4943d143 | 3137 | r = lookup_paths_init(&paths, scope, 0, root_dir); |
83096483 LP |
3138 | if (r < 0) |
3139 | return r; | |
3140 | ||
a3c4eb07 | 3141 | STRV_FOREACH(i, paths.search_path) { |
da39f6a6 | 3142 | _cleanup_closedir_ DIR *d = NULL; |
d25e100b | 3143 | struct dirent *de; |
83096483 | 3144 | |
401017e0 | 3145 | d = opendir(*i); |
83096483 LP |
3146 | if (!d) { |
3147 | if (errno == ENOENT) | |
3148 | continue; | |
a1feacf7 | 3149 | if (IN_SET(errno, ENOTDIR, EACCES)) { |
25f027c5 | 3150 | log_debug_errno(errno, "Failed to open \"%s\": %m", *i); |
a1feacf7 ZJS |
3151 | continue; |
3152 | } | |
83096483 | 3153 | |
d9e5e694 | 3154 | return -errno; |
83096483 LP |
3155 | } |
3156 | ||
d25e100b | 3157 | FOREACH_DIRENT(de, d, return -errno) { |
59ccf93d | 3158 | _cleanup_(unit_file_list_free_onep) UnitFileList *f = NULL; |
83096483 | 3159 | |
7410616c | 3160 | if (!unit_name_is_valid(de->d_name, UNIT_NAME_ANY)) |
83096483 LP |
3161 | continue; |
3162 | ||
313fe66f | 3163 | if (!strv_fnmatch_or_empty(patterns, de->d_name, FNM_NOESCAPE)) |
3164 | continue; | |
3165 | ||
83096483 LP |
3166 | if (hashmap_get(h, de->d_name)) |
3167 | continue; | |
3168 | ||
da39f6a6 | 3169 | dirent_ensure_type(d, de); |
83096483 | 3170 | |
da39f6a6 | 3171 | if (!IN_SET(de->d_type, DT_LNK, DT_REG)) |
83096483 LP |
3172 | continue; |
3173 | ||
3174 | f = new0(UnitFileList, 1); | |
d9e5e694 ZJS |
3175 | if (!f) |
3176 | return -ENOMEM; | |
83096483 | 3177 | |
401017e0 | 3178 | f->path = path_make_absolute(de->d_name, *i); |
d9e5e694 ZJS |
3179 | if (!f->path) |
3180 | return -ENOMEM; | |
83096483 | 3181 | |
401017e0 | 3182 | r = unit_file_lookup_state(scope, &paths, de->d_name, &f->state); |
d9e5e694 | 3183 | if (r < 0) |
0ec0deaa | 3184 | f->state = UNIT_FILE_BAD; |
81fc054d | 3185 | |
313fe66f | 3186 | if (!strv_isempty(states) && |
3187 | !strv_contains(states, unit_file_state_to_string(f->state))) | |
3188 | continue; | |
3189 | ||
2b6bf07d | 3190 | r = hashmap_put(h, basename(f->path), f); |
d9e5e694 ZJS |
3191 | if (r < 0) |
3192 | return r; | |
0ec0deaa | 3193 | |
d9e5e694 | 3194 | f = NULL; /* prevent cleanup */ |
83096483 LP |
3195 | } |
3196 | } | |
3197 | ||
77cd2c87 | 3198 | return 0; |
83096483 LP |
3199 | } |
3200 | ||
3201 | static const char* const unit_file_state_table[_UNIT_FILE_STATE_MAX] = { | |
3202 | [UNIT_FILE_ENABLED] = "enabled", | |
771faa9a | 3203 | [UNIT_FILE_ENABLED_RUNTIME] = "enabled-runtime", |
83096483 LP |
3204 | [UNIT_FILE_LINKED] = "linked", |
3205 | [UNIT_FILE_LINKED_RUNTIME] = "linked-runtime", | |
3206 | [UNIT_FILE_MASKED] = "masked", | |
3207 | [UNIT_FILE_MASKED_RUNTIME] = "masked-runtime", | |
3208 | [UNIT_FILE_STATIC] = "static", | |
b5b46d59 | 3209 | [UNIT_FILE_DISABLED] = "disabled", |
aedd4012 | 3210 | [UNIT_FILE_INDIRECT] = "indirect", |
f4139308 | 3211 | [UNIT_FILE_GENERATED] = "generated", |
e4fca67f | 3212 | [UNIT_FILE_TRANSIENT] = "transient", |
0ec0deaa | 3213 | [UNIT_FILE_BAD] = "bad", |
83096483 LP |
3214 | }; |
3215 | ||
3216 | DEFINE_STRING_TABLE_LOOKUP(unit_file_state, UnitFileState); | |
c0576cd6 LP |
3217 | |
3218 | static const char* const unit_file_change_type_table[_UNIT_FILE_CHANGE_TYPE_MAX] = { | |
3219 | [UNIT_FILE_SYMLINK] = "symlink", | |
3220 | [UNIT_FILE_UNLINK] = "unlink", | |
9a0a413a | 3221 | [UNIT_FILE_IS_MASKED] = "masked", |
893275df | 3222 | [UNIT_FILE_IS_DANGLING] = "dangling", |
c0576cd6 LP |
3223 | }; |
3224 | ||
3225 | DEFINE_STRING_TABLE_LOOKUP(unit_file_change_type, UnitFileChangeType); | |
d309c1c3 | 3226 | |
86bbe5bf | 3227 | static const char* const unit_file_preset_mode_table[_UNIT_FILE_PRESET_MAX] = { |
d309c1c3 LP |
3228 | [UNIT_FILE_PRESET_FULL] = "full", |
3229 | [UNIT_FILE_PRESET_ENABLE_ONLY] = "enable-only", | |
3230 | [UNIT_FILE_PRESET_DISABLE_ONLY] = "disable-only", | |
3231 | }; | |
3232 | ||
3233 | DEFINE_STRING_TABLE_LOOKUP(unit_file_preset_mode, UnitFilePresetMode); |