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db9ecf05 | 1 | /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
83096483 LP |
2 | |
3 | #include <errno.h> | |
4 | #include <fcntl.h> | |
83096483 | 5 | #include <fnmatch.h> |
a8fbdf54 TA |
6 | #include <limits.h> |
7 | #include <stddef.h> | |
8 | #include <stdio.h> | |
9 | #include <stdlib.h> | |
07630cea | 10 | #include <unistd.h> |
83096483 | 11 | |
b5efdb8a | 12 | #include "alloc-util.h" |
07630cea LP |
13 | #include "conf-files.h" |
14 | #include "conf-parser.h" | |
f7767d76 | 15 | #include "def.h" |
a0956174 | 16 | #include "dirent-util.h" |
93419a96 | 17 | #include "errno-list.h" |
a8fbdf54 | 18 | #include "extract-word.h" |
a0956174 | 19 | #include "fd-util.h" |
0ec0deaa | 20 | #include "fileio.h" |
f4f15635 | 21 | #include "fs-util.h" |
83096483 | 22 | #include "hashmap.h" |
07630cea | 23 | #include "install-printf.h" |
a0956174 | 24 | #include "install.h" |
a760db24 | 25 | #include "locale-util.h" |
a8fbdf54 TA |
26 | #include "log.h" |
27 | #include "macro.h" | |
07630cea | 28 | #include "mkdir.h" |
83096483 | 29 | #include "path-lookup.h" |
07630cea | 30 | #include "path-util.h" |
344ca755 | 31 | #include "rm-rf.h" |
07630cea LP |
32 | #include "set.h" |
33 | #include "special.h" | |
8fcde012 | 34 | #include "stat-util.h" |
8b43440b | 35 | #include "string-table.h" |
07630cea | 36 | #include "string-util.h" |
83096483 | 37 | #include "strv.h" |
5cfa33e0 | 38 | #include "unit-file.h" |
83096483 | 39 | |
0ec0deaa LP |
40 | #define UNIT_FILE_FOLLOW_SYMLINK_MAX 64 |
41 | ||
42 | typedef enum SearchFlags { | |
ef31828d LP |
43 | SEARCH_LOAD = 1 << 0, |
44 | SEARCH_FOLLOW_CONFIG_SYMLINKS = 1 << 1, | |
45 | SEARCH_DROPIN = 1 << 2, | |
0ec0deaa LP |
46 | } SearchFlags; |
47 | ||
83096483 | 48 | typedef struct { |
0ec0deaa LP |
49 | OrderedHashmap *will_process; |
50 | OrderedHashmap *have_processed; | |
83096483 LP |
51 | } InstallContext; |
52 | ||
8965d9f8 AC |
53 | typedef enum { |
54 | PRESET_UNKNOWN, | |
55 | PRESET_ENABLE, | |
56 | PRESET_DISABLE, | |
57 | } PresetAction; | |
58 | ||
8f7b2566 | 59 | struct UnitFilePresetRule { |
8965d9f8 AC |
60 | char *pattern; |
61 | PresetAction action; | |
4c9565ee | 62 | char **instances; |
8f7b2566 | 63 | }; |
8965d9f8 | 64 | |
a1e92eee | 65 | static bool unit_file_install_info_has_rules(const UnitFileInstallInfo *i) { |
7a7ec2bf ZJS |
66 | assert(i); |
67 | ||
68 | return !strv_isempty(i->aliases) || | |
69 | !strv_isempty(i->wanted_by) || | |
70 | !strv_isempty(i->required_by); | |
71 | } | |
72 | ||
a1e92eee | 73 | static bool unit_file_install_info_has_also(const UnitFileInstallInfo *i) { |
7a7ec2bf ZJS |
74 | assert(i); |
75 | ||
76 | return !strv_isempty(i->also); | |
77 | } | |
78 | ||
8f7b2566 | 79 | void unit_file_presets_freep(UnitFilePresets *p) { |
8965d9f8 AC |
80 | if (!p) |
81 | return; | |
82 | ||
de8be28e | 83 | for (size_t i = 0; i < p->n_rules; i++) { |
8965d9f8 | 84 | free(p->rules[i].pattern); |
4c9565ee RB |
85 | strv_free(p->rules[i].instances); |
86 | } | |
8965d9f8 AC |
87 | |
88 | free(p->rules); | |
89 | p->n_rules = 0; | |
90 | } | |
91 | ||
b82f71c7 | 92 | static const char *const unit_file_type_table[_UNIT_FILE_TYPE_MAX] = { |
64f9280e ZJS |
93 | [UNIT_FILE_TYPE_REGULAR] = "regular", |
94 | [UNIT_FILE_TYPE_SYMLINK] = "symlink", | |
95 | [UNIT_FILE_TYPE_MASKED] = "masked", | |
96 | }; | |
97 | ||
98 | DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(unit_file_type, UnitFileType); | |
99 | ||
32c0ed7b | 100 | static int in_search_path(const LookupPaths *p, const char *path) { |
8f294b45 | 101 | _cleanup_free_ char *parent = NULL; |
8f294b45 LP |
102 | |
103 | assert(path); | |
104 | ||
5f311f8c LP |
105 | parent = dirname_malloc(path); |
106 | if (!parent) | |
107 | return -ENOMEM; | |
8f294b45 | 108 | |
9a2ec8f7 | 109 | return path_strv_contains(p->search_path, parent); |
8f294b45 LP |
110 | } |
111 | ||
401017e0 | 112 | static const char* skip_root(const LookupPaths *p, const char *path) { |
8f9364f9 | 113 | char *e; |
401017e0 | 114 | |
8f9364f9 LP |
115 | assert(p); |
116 | assert(path); | |
401017e0 | 117 | |
8f9364f9 LP |
118 | if (!p->root_dir) |
119 | return path; | |
401017e0 | 120 | |
8f9364f9 LP |
121 | e = path_startswith(path, p->root_dir); |
122 | if (!e) | |
123 | return NULL; | |
124 | ||
125 | /* Make sure the returned path starts with a slash */ | |
126 | if (e[0] != '/') { | |
127 | if (e == path || e[-1] != '/') | |
128 | return NULL; | |
401017e0 | 129 | |
8f9364f9 | 130 | e--; |
401017e0 LP |
131 | } |
132 | ||
8f9364f9 | 133 | return e; |
401017e0 LP |
134 | } |
135 | ||
f4dc1e65 | 136 | static int path_is_generator(const LookupPaths *p, const char *path) { |
f4139308 LP |
137 | _cleanup_free_ char *parent = NULL; |
138 | ||
e1c5c2b0 | 139 | assert(p); |
f4139308 LP |
140 | assert(path); |
141 | ||
142 | parent = dirname_malloc(path); | |
143 | if (!parent) | |
144 | return -ENOMEM; | |
145 | ||
24737c29 ZJS |
146 | return path_equal_ptr(parent, p->generator) || |
147 | path_equal_ptr(parent, p->generator_early) || | |
148 | path_equal_ptr(parent, p->generator_late); | |
f4139308 LP |
149 | } |
150 | ||
e4fca67f LP |
151 | static int path_is_transient(const LookupPaths *p, const char *path) { |
152 | _cleanup_free_ char *parent = NULL; | |
153 | ||
154 | assert(p); | |
155 | assert(path); | |
156 | ||
157 | parent = dirname_malloc(path); | |
158 | if (!parent) | |
159 | return -ENOMEM; | |
160 | ||
24737c29 | 161 | return path_equal_ptr(parent, p->transient); |
e4fca67f LP |
162 | } |
163 | ||
344ca755 | 164 | static int path_is_control(const LookupPaths *p, const char *path) { |
e1c5c2b0 | 165 | _cleanup_free_ char *parent = NULL; |
0ec0deaa | 166 | |
e1c5c2b0 | 167 | assert(p); |
0ec0deaa LP |
168 | assert(path); |
169 | ||
344ca755 LP |
170 | parent = dirname_malloc(path); |
171 | if (!parent) | |
172 | return -ENOMEM; | |
0ec0deaa | 173 | |
24737c29 ZJS |
174 | return path_equal_ptr(parent, p->persistent_control) || |
175 | path_equal_ptr(parent, p->runtime_control); | |
344ca755 LP |
176 | } |
177 | ||
dfead90d | 178 | static int path_is_config(const LookupPaths *p, const char *path, bool check_parent) { |
344ca755 LP |
179 | _cleanup_free_ char *parent = NULL; |
180 | ||
181 | assert(p); | |
182 | assert(path); | |
183 | ||
d7604756 ZJS |
184 | /* Note that we do *not* have generic checks for /etc or /run in place, since with |
185 | * them we couldn't discern configuration from transient or generated units */ | |
0ec0deaa | 186 | |
dfead90d LP |
187 | if (check_parent) { |
188 | parent = dirname_malloc(path); | |
189 | if (!parent) | |
190 | return -ENOMEM; | |
191 | ||
192 | path = parent; | |
193 | } | |
0ec0deaa | 194 | |
dfead90d LP |
195 | return path_equal_ptr(path, p->persistent_config) || |
196 | path_equal_ptr(path, p->runtime_config); | |
0ec0deaa LP |
197 | } |
198 | ||
dfead90d | 199 | static int path_is_runtime(const LookupPaths *p, const char *path, bool check_parent) { |
385eb996 | 200 | _cleanup_free_ char *parent = NULL; |
401017e0 | 201 | const char *rpath; |
385eb996 LP |
202 | |
203 | assert(p); | |
204 | assert(path); | |
205 | ||
d7604756 ZJS |
206 | /* Everything in /run is considered runtime. On top of that we also add |
207 | * explicit checks for the various runtime directories, as safety net. */ | |
344ca755 | 208 | |
401017e0 LP |
209 | rpath = skip_root(p, path); |
210 | if (rpath && path_startswith(rpath, "/run")) | |
385eb996 LP |
211 | return true; |
212 | ||
dfead90d LP |
213 | if (check_parent) { |
214 | parent = dirname_malloc(path); | |
215 | if (!parent) | |
216 | return -ENOMEM; | |
385eb996 | 217 | |
dfead90d LP |
218 | path = parent; |
219 | } | |
220 | ||
221 | return path_equal_ptr(path, p->runtime_config) || | |
222 | path_equal_ptr(path, p->generator) || | |
223 | path_equal_ptr(path, p->generator_early) || | |
224 | path_equal_ptr(path, p->generator_late) || | |
225 | path_equal_ptr(path, p->transient) || | |
226 | path_equal_ptr(path, p->runtime_control); | |
344ca755 LP |
227 | } |
228 | ||
efdbf5fe | 229 | static int path_is_vendor_or_generator(const LookupPaths *p, const char *path) { |
344ca755 LP |
230 | const char *rpath; |
231 | ||
232 | assert(p); | |
233 | assert(path); | |
234 | ||
235 | rpath = skip_root(p, path); | |
236 | if (!rpath) | |
237 | return 0; | |
238 | ||
239 | if (path_startswith(rpath, "/usr")) | |
240 | return true; | |
241 | ||
349cc4a5 | 242 | #if HAVE_SPLIT_USR |
344ca755 LP |
243 | if (path_startswith(rpath, "/lib")) |
244 | return true; | |
245 | #endif | |
246 | ||
efdbf5fe JC |
247 | if (path_is_generator(p, rpath)) |
248 | return true; | |
249 | ||
835cf75a | 250 | return path_equal(rpath, SYSTEM_DATA_UNIT_DIR); |
385eb996 LP |
251 | } |
252 | ||
83654007 LB |
253 | static const char* config_path_from_flags(const LookupPaths *paths, UnitFileFlags flags) { |
254 | assert(paths); | |
255 | ||
256 | if (FLAGS_SET(flags, UNIT_FILE_PORTABLE)) | |
257 | return FLAGS_SET(flags, UNIT_FILE_RUNTIME) ? paths->runtime_attached : paths->persistent_attached; | |
258 | else | |
259 | return FLAGS_SET(flags, UNIT_FILE_RUNTIME) ? paths->runtime_config : paths->persistent_config; | |
260 | } | |
261 | ||
0ec0deaa LP |
262 | int unit_file_changes_add( |
263 | UnitFileChange **changes, | |
da6053d0 | 264 | size_t *n_changes, |
93419a96 | 265 | int type_or_errno, /* UNIT_FILE_SYMLINK, _UNLINK, _IS_MASKED, _IS_DANGLING if positive or errno if negative */ |
0ec0deaa LP |
266 | const char *path, |
267 | const char *source) { | |
268 | ||
12bf0ae4 | 269 | _cleanup_free_ char *p = NULL, *s = NULL; |
0ec0deaa | 270 | UnitFileChange *c; |
0ec0deaa | 271 | |
0ec0deaa LP |
272 | assert(!changes == !n_changes); |
273 | ||
93419a96 LP |
274 | if (type_or_errno >= 0) |
275 | assert(type_or_errno < _UNIT_FILE_CHANGE_TYPE_MAX); | |
276 | else | |
277 | assert(type_or_errno >= -ERRNO_MAX); | |
278 | ||
0ec0deaa LP |
279 | if (!changes) |
280 | return 0; | |
281 | ||
62d74c78 | 282 | c = reallocarray(*changes, *n_changes + 1, sizeof(UnitFileChange)); |
0ec0deaa LP |
283 | if (!c) |
284 | return -ENOMEM; | |
0ec0deaa | 285 | *changes = c; |
0ec0deaa | 286 | |
3aa96361 ZJS |
287 | if (path) { |
288 | p = strdup(path); | |
289 | if (!p) | |
290 | return -ENOMEM; | |
0ec0deaa | 291 | |
3aa96361 ZJS |
292 | path_simplify(p); |
293 | } | |
93419a96 LP |
294 | |
295 | if (source) { | |
296 | s = strdup(source); | |
297 | if (!s) | |
298 | return -ENOMEM; | |
299 | ||
4ff361cc | 300 | path_simplify(s); |
93419a96 LP |
301 | } |
302 | ||
303 | c[(*n_changes)++] = (UnitFileChange) { | |
304 | .type_or_errno = type_or_errno, | |
305 | .path = TAKE_PTR(p), | |
306 | .source = TAKE_PTR(s), | |
307 | }; | |
0ec0deaa | 308 | |
0ec0deaa LP |
309 | return 0; |
310 | } | |
311 | ||
da6053d0 | 312 | void unit_file_changes_free(UnitFileChange *changes, size_t n_changes) { |
0ec0deaa LP |
313 | assert(changes || n_changes == 0); |
314 | ||
de8be28e | 315 | for (size_t i = 0; i < n_changes; i++) { |
0ec0deaa LP |
316 | free(changes[i].path); |
317 | free(changes[i].source); | |
318 | } | |
319 | ||
320 | free(changes); | |
321 | } | |
322 | ||
da6053d0 | 323 | void unit_file_dump_changes(int r, const char *verb, const UnitFileChange *changes, size_t n_changes, bool quiet) { |
af3d8113 ZJS |
324 | bool logged = false; |
325 | ||
326 | assert(changes || n_changes == 0); | |
327 | /* If verb is not specified, errors are not allowed! */ | |
328 | assert(verb || r >= 0); | |
329 | ||
de8be28e | 330 | for (size_t i = 0; i < n_changes; i++) { |
93419a96 | 331 | assert(verb || changes[i].type_or_errno >= 0); |
af3d8113 | 332 | |
93419a96 | 333 | switch(changes[i].type_or_errno) { |
af3d8113 ZJS |
334 | case UNIT_FILE_SYMLINK: |
335 | if (!quiet) | |
a760db24 ZJS |
336 | log_info("Created symlink %s %s %s.", |
337 | changes[i].path, | |
9a6f746f | 338 | special_glyph(SPECIAL_GLYPH_ARROW), |
a760db24 | 339 | changes[i].source); |
af3d8113 ZJS |
340 | break; |
341 | case UNIT_FILE_UNLINK: | |
342 | if (!quiet) | |
343 | log_info("Removed %s.", changes[i].path); | |
344 | break; | |
345 | case UNIT_FILE_IS_MASKED: | |
346 | if (!quiet) | |
347 | log_info("Unit %s is masked, ignoring.", changes[i].path); | |
348 | break; | |
893275df ZJS |
349 | case UNIT_FILE_IS_DANGLING: |
350 | if (!quiet) | |
351 | log_info("Unit %s is an alias to a unit that is not present, ignoring.", | |
352 | changes[i].path); | |
353 | break; | |
8ae27441 JS |
354 | case UNIT_FILE_DESTINATION_NOT_PRESENT: |
355 | if (!quiet) | |
356 | log_warning("Unit %s is added as a dependency to a non-existent unit %s.", | |
357 | changes[i].source, changes[i].path); | |
358 | break; | |
3aa96361 ZJS |
359 | case UNIT_FILE_AUXILIARY_FAILED: |
360 | if (!quiet) | |
361 | log_warning("Failed to enable auxiliary unit %s, ignoring.", changes[i].source); | |
362 | break; | |
af3d8113 ZJS |
363 | case -EEXIST: |
364 | if (changes[i].source) | |
93419a96 | 365 | log_error_errno(changes[i].type_or_errno, |
af3d8113 ZJS |
366 | "Failed to %s unit, file %s already exists and is a symlink to %s.", |
367 | verb, changes[i].path, changes[i].source); | |
368 | else | |
93419a96 | 369 | log_error_errno(changes[i].type_or_errno, |
af3d8113 ZJS |
370 | "Failed to %s unit, file %s already exists.", |
371 | verb, changes[i].path); | |
372 | logged = true; | |
373 | break; | |
374 | case -ERFKILL: | |
93419a96 | 375 | log_error_errno(changes[i].type_or_errno, "Failed to %s unit, unit %s is masked.", |
af3d8113 ZJS |
376 | verb, changes[i].path); |
377 | logged = true; | |
378 | break; | |
379 | case -EADDRNOTAVAIL: | |
93419a96 | 380 | log_error_errno(changes[i].type_or_errno, "Failed to %s unit, unit %s is transient or generated.", |
af3d8113 ZJS |
381 | verb, changes[i].path); |
382 | logged = true; | |
383 | break; | |
b0ec372a ZJS |
384 | case -EIDRM: |
385 | log_error_errno(changes[i].type_or_errno, "Failed to %s unit, unit %s is a non-template unit.", | |
386 | verb, changes[i].path); | |
387 | logged = true; | |
388 | break; | |
d7ceaf72 | 389 | case -EUCLEAN: |
93419a96 | 390 | log_error_errno(changes[i].type_or_errno, |
d7ceaf72 ZJS |
391 | "Failed to %s unit, \"%s\" is not a valid unit name.", |
392 | verb, changes[i].path); | |
393 | logged = true; | |
394 | break; | |
af3d8113 | 395 | case -ELOOP: |
93419a96 | 396 | log_error_errno(changes[i].type_or_errno, "Failed to %s unit, refusing to operate on linked unit file %s", |
af3d8113 ZJS |
397 | verb, changes[i].path); |
398 | logged = true; | |
399 | break; | |
637d6e5b LP |
400 | |
401 | case -ENOENT: | |
93419a96 | 402 | log_error_errno(changes[i].type_or_errno, "Failed to %s unit, unit %s does not exist.", verb, changes[i].path); |
637d6e5b LP |
403 | logged = true; |
404 | break; | |
405 | ||
af3d8113 | 406 | default: |
93419a96 LP |
407 | assert(changes[i].type_or_errno < 0); |
408 | log_error_errno(changes[i].type_or_errno, "Failed to %s unit, file %s: %m.", | |
af3d8113 ZJS |
409 | verb, changes[i].path); |
410 | logged = true; | |
411 | } | |
412 | } | |
413 | ||
414 | if (r < 0 && !logged) | |
415 | log_error_errno(r, "Failed to %s: %m.", verb); | |
416 | } | |
417 | ||
25ea9277 ZJS |
418 | /** |
419 | * Checks if two paths or symlinks from wd are the same, when root is the root of the filesystem. | |
420 | * wc should be the full path in the host file system. | |
421 | */ | |
422 | static bool chroot_symlinks_same(const char *root, const char *wd, const char *a, const char *b) { | |
423 | assert(path_is_absolute(wd)); | |
424 | ||
425 | /* This will give incorrect results if the paths are relative and go outside | |
426 | * of the chroot. False negatives are possible. */ | |
427 | ||
ae9efab7 ZJS |
428 | if (!root) |
429 | root = "/"; | |
430 | ||
25ea9277 ZJS |
431 | a = strjoina(path_is_absolute(a) ? root : wd, "/", a); |
432 | b = strjoina(path_is_absolute(b) ? root : wd, "/", b); | |
e3f791a2 | 433 | return path_equal_or_files_same(a, b, 0); |
25ea9277 ZJS |
434 | } |
435 | ||
0ec0deaa | 436 | static int create_symlink( |
60bec8e4 | 437 | const LookupPaths *paths, |
0ec0deaa LP |
438 | const char *old_path, |
439 | const char *new_path, | |
440 | bool force, | |
441 | UnitFileChange **changes, | |
da6053d0 | 442 | size_t *n_changes) { |
0ec0deaa | 443 | |
25ea9277 | 444 | _cleanup_free_ char *dest = NULL, *dirname = NULL; |
60bec8e4 | 445 | const char *rp; |
0ec0deaa LP |
446 | int r; |
447 | ||
448 | assert(old_path); | |
449 | assert(new_path); | |
450 | ||
60bec8e4 ZJS |
451 | rp = skip_root(paths, old_path); |
452 | if (rp) | |
453 | old_path = rp; | |
454 | ||
0ec0deaa LP |
455 | /* Actually create a symlink, and remember that we did. Is |
456 | * smart enough to check if there's already a valid symlink in | |
85158303 ZJS |
457 | * place. |
458 | * | |
459 | * Returns 1 if a symlink was created or already exists and points to | |
460 | * the right place, or negative on error. | |
461 | */ | |
0ec0deaa LP |
462 | |
463 | mkdir_parents_label(new_path, 0755); | |
464 | ||
465 | if (symlink(old_path, new_path) >= 0) { | |
466 | unit_file_changes_add(changes, n_changes, UNIT_FILE_SYMLINK, new_path, old_path); | |
3de15214 | 467 | return 1; |
0ec0deaa LP |
468 | } |
469 | ||
af3d8113 ZJS |
470 | if (errno != EEXIST) { |
471 | unit_file_changes_add(changes, n_changes, -errno, new_path, NULL); | |
0ec0deaa | 472 | return -errno; |
af3d8113 | 473 | } |
0ec0deaa LP |
474 | |
475 | r = readlink_malloc(new_path, &dest); | |
7d782f26 ZJS |
476 | if (r < 0) { |
477 | /* translate EINVAL (non-symlink exists) to EEXIST */ | |
478 | if (r == -EINVAL) | |
479 | r = -EEXIST; | |
480 | ||
481 | unit_file_changes_add(changes, n_changes, r, new_path, NULL); | |
0ec0deaa | 482 | return r; |
7d782f26 | 483 | } |
0ec0deaa | 484 | |
25ea9277 ZJS |
485 | dirname = dirname_malloc(new_path); |
486 | if (!dirname) | |
487 | return -ENOMEM; | |
488 | ||
3e8d06d9 ZJS |
489 | if (chroot_symlinks_same(paths->root_dir, dirname, dest, old_path)) { |
490 | log_debug("Symlink %s → %s already exists", new_path, dest); | |
85158303 | 491 | return 1; |
3e8d06d9 | 492 | } |
0ec0deaa | 493 | |
af3d8113 ZJS |
494 | if (!force) { |
495 | unit_file_changes_add(changes, n_changes, -EEXIST, new_path, dest); | |
0ec0deaa | 496 | return -EEXIST; |
af3d8113 | 497 | } |
0ec0deaa LP |
498 | |
499 | r = symlink_atomic(old_path, new_path); | |
7d782f26 ZJS |
500 | if (r < 0) { |
501 | unit_file_changes_add(changes, n_changes, r, new_path, NULL); | |
0ec0deaa | 502 | return r; |
7d782f26 | 503 | } |
0ec0deaa LP |
504 | |
505 | unit_file_changes_add(changes, n_changes, UNIT_FILE_UNLINK, new_path, NULL); | |
506 | unit_file_changes_add(changes, n_changes, UNIT_FILE_SYMLINK, new_path, old_path); | |
507 | ||
3de15214 | 508 | return 1; |
0ec0deaa LP |
509 | } |
510 | ||
83096483 LP |
511 | static int mark_symlink_for_removal( |
512 | Set **remove_symlinks_to, | |
513 | const char *p) { | |
514 | ||
515 | char *n; | |
516 | int r; | |
517 | ||
518 | assert(p); | |
519 | ||
548f6937 | 520 | r = set_ensure_allocated(remove_symlinks_to, &path_hash_ops); |
83096483 LP |
521 | if (r < 0) |
522 | return r; | |
523 | ||
524 | n = strdup(p); | |
525 | if (!n) | |
526 | return -ENOMEM; | |
527 | ||
4ff361cc | 528 | path_simplify(n); |
83096483 | 529 | |
ef42202a | 530 | r = set_consume(*remove_symlinks_to, n); |
d25e100b LP |
531 | if (r == -EEXIST) |
532 | return 0; | |
ef42202a | 533 | if (r < 0) |
d25e100b | 534 | return r; |
83096483 | 535 | |
0ec0deaa | 536 | return 1; |
83096483 LP |
537 | } |
538 | ||
539 | static int remove_marked_symlinks_fd( | |
540 | Set *remove_symlinks_to, | |
541 | int fd, | |
542 | const char *path, | |
543 | const char *config_path, | |
401017e0 | 544 | const LookupPaths *lp, |
3b3557c4 | 545 | bool dry_run, |
0ec0deaa | 546 | bool *restart, |
83096483 | 547 | UnitFileChange **changes, |
da6053d0 | 548 | size_t *n_changes) { |
83096483 | 549 | |
7fd1b19b | 550 | _cleanup_closedir_ DIR *d = NULL; |
d25e100b | 551 | struct dirent *de; |
bcafe923 | 552 | int r = 0; |
83096483 LP |
553 | |
554 | assert(remove_symlinks_to); | |
555 | assert(fd >= 0); | |
556 | assert(path); | |
557 | assert(config_path); | |
401017e0 | 558 | assert(lp); |
0ec0deaa | 559 | assert(restart); |
83096483 LP |
560 | |
561 | d = fdopendir(fd); | |
562 | if (!d) { | |
03e334a1 | 563 | safe_close(fd); |
83096483 LP |
564 | return -errno; |
565 | } | |
566 | ||
567 | rewinddir(d); | |
568 | ||
d25e100b | 569 | FOREACH_DIRENT(de, d, return -errno) { |
83096483 LP |
570 | |
571 | dirent_ensure_type(d, de); | |
572 | ||
573 | if (de->d_type == DT_DIR) { | |
7fd1b19b | 574 | _cleanup_free_ char *p = NULL; |
d25e100b | 575 | int nfd, q; |
83096483 LP |
576 | |
577 | nfd = openat(fd, de->d_name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW); | |
578 | if (nfd < 0) { | |
579 | if (errno == ENOENT) | |
580 | continue; | |
581 | ||
582 | if (r == 0) | |
583 | r = -errno; | |
584 | continue; | |
585 | } | |
586 | ||
587 | p = path_make_absolute(de->d_name, path); | |
588 | if (!p) { | |
03e334a1 | 589 | safe_close(nfd); |
d9e5e694 | 590 | return -ENOMEM; |
83096483 LP |
591 | } |
592 | ||
593 | /* This will close nfd, regardless whether it succeeds or not */ | |
3b3557c4 | 594 | q = remove_marked_symlinks_fd(remove_symlinks_to, nfd, p, config_path, lp, dry_run, restart, changes, n_changes); |
bcafe923 | 595 | if (q < 0 && r == 0) |
83096483 LP |
596 | r = q; |
597 | ||
598 | } else if (de->d_type == DT_LNK) { | |
7fd1b19b | 599 | _cleanup_free_ char *p = NULL, *dest = NULL; |
401017e0 | 600 | const char *rp; |
83096483 | 601 | bool found; |
0ec0deaa | 602 | int q; |
83096483 | 603 | |
7410616c | 604 | if (!unit_name_is_valid(de->d_name, UNIT_NAME_ANY)) |
bcafe923 LP |
605 | continue; |
606 | ||
83096483 | 607 | p = path_make_absolute(de->d_name, path); |
d9e5e694 ZJS |
608 | if (!p) |
609 | return -ENOMEM; | |
4ff361cc | 610 | path_simplify(p); |
83096483 | 611 | |
66a19d85 | 612 | q = chase_symlinks(p, NULL, CHASE_NONEXISTENT, &dest, NULL); |
401017e0 LP |
613 | if (q == -ENOENT) |
614 | continue; | |
83096483 | 615 | if (q < 0) { |
83096483 LP |
616 | if (r == 0) |
617 | r = q; | |
618 | continue; | |
619 | } | |
620 | ||
401017e0 LP |
621 | /* We remove all links pointing to a file or path that is marked, as well as all files sharing |
622 | * the same name as a file that is marked. */ | |
0ec0deaa | 623 | |
596fc263 | 624 | found = set_contains(remove_symlinks_to, dest) || |
0ec0deaa LP |
625 | set_contains(remove_symlinks_to, basename(dest)) || |
626 | set_contains(remove_symlinks_to, de->d_name); | |
83096483 | 627 | |
1dacfd2a LP |
628 | if (!found) |
629 | continue; | |
83096483 | 630 | |
3b3557c4 JS |
631 | if (!dry_run) { |
632 | if (unlinkat(fd, de->d_name, 0) < 0 && errno != ENOENT) { | |
633 | if (r == 0) | |
634 | r = -errno; | |
635 | unit_file_changes_add(changes, n_changes, -errno, p, NULL); | |
636 | continue; | |
637 | } | |
bcafe923 | 638 | |
3b3557c4 JS |
639 | (void) rmdir_parents(p, config_path); |
640 | } | |
83096483 | 641 | |
0ec0deaa | 642 | unit_file_changes_add(changes, n_changes, UNIT_FILE_UNLINK, p, NULL); |
1dacfd2a | 643 | |
12bf0ae4 ZJS |
644 | /* Now, remember the full path (but with the root prefix removed) of |
645 | * the symlink we just removed, and remove any symlinks to it, too. */ | |
401017e0 LP |
646 | |
647 | rp = skip_root(lp, p); | |
648 | q = mark_symlink_for_removal(&remove_symlinks_to, rp ?: p); | |
0ec0deaa LP |
649 | if (q < 0) |
650 | return q; | |
3b3557c4 | 651 | if (q > 0 && !dry_run) |
0ec0deaa | 652 | *restart = true; |
83096483 LP |
653 | } |
654 | } | |
655 | ||
83096483 LP |
656 | return r; |
657 | } | |
658 | ||
659 | static int remove_marked_symlinks( | |
660 | Set *remove_symlinks_to, | |
661 | const char *config_path, | |
401017e0 | 662 | const LookupPaths *lp, |
3b3557c4 | 663 | bool dry_run, |
83096483 | 664 | UnitFileChange **changes, |
da6053d0 | 665 | size_t *n_changes) { |
83096483 | 666 | |
da39f6a6 | 667 | _cleanup_close_ int fd = -1; |
0ec0deaa | 668 | bool restart; |
d25e100b | 669 | int r = 0; |
83096483 LP |
670 | |
671 | assert(config_path); | |
401017e0 | 672 | assert(lp); |
83096483 LP |
673 | |
674 | if (set_size(remove_symlinks_to) <= 0) | |
675 | return 0; | |
676 | ||
67852d08 | 677 | fd = open(config_path, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC); |
83096483 | 678 | if (fd < 0) |
32d9493e | 679 | return errno == ENOENT ? 0 : -errno; |
83096483 LP |
680 | |
681 | do { | |
682 | int q, cfd; | |
0ec0deaa | 683 | restart = false; |
83096483 | 684 | |
ead34950 | 685 | cfd = fcntl(fd, F_DUPFD_CLOEXEC, 3); |
d25e100b LP |
686 | if (cfd < 0) |
687 | return -errno; | |
83096483 LP |
688 | |
689 | /* This takes possession of cfd and closes it */ | |
3b3557c4 | 690 | q = remove_marked_symlinks_fd(remove_symlinks_to, cfd, config_path, config_path, lp, dry_run, &restart, changes, n_changes); |
83096483 LP |
691 | if (r == 0) |
692 | r = q; | |
0ec0deaa | 693 | } while (restart); |
83096483 | 694 | |
83096483 LP |
695 | return r; |
696 | } | |
697 | ||
d5c30911 | 698 | static int is_symlink_with_known_name(const UnitFileInstallInfo *i, const char *name) { |
5cd8ae31 ZJS |
699 | int r; |
700 | ||
701 | if (streq(name, i->name)) | |
702 | return true; | |
703 | ||
704 | if (strv_contains(i->aliases, name)) | |
705 | return true; | |
706 | ||
707 | /* Look for template symlink matching DefaultInstance */ | |
708 | if (i->default_instance && unit_name_is_valid(i->name, UNIT_NAME_TEMPLATE)) { | |
709 | _cleanup_free_ char *s = NULL; | |
710 | ||
711 | r = unit_name_replace_instance(i->name, i->default_instance, &s); | |
712 | if (r < 0) { | |
713 | if (r != -EINVAL) | |
714 | return r; | |
715 | ||
716 | } else if (streq(name, s)) | |
717 | return true; | |
718 | } | |
719 | ||
720 | return false; | |
721 | } | |
722 | ||
43b4e305 MS |
723 | static int find_symlinks_in_directory( |
724 | DIR *dir, | |
725 | const char *dir_path, | |
0ec0deaa | 726 | const char *root_dir, |
26526f98 | 727 | const UnitFileInstallInfo *i, |
d9b4b48f | 728 | bool match_aliases, |
4b37c89f | 729 | bool ignore_same_name, |
83096483 LP |
730 | const char *config_path, |
731 | bool *same_name_link) { | |
732 | ||
d25e100b LP |
733 | struct dirent *de; |
734 | int r = 0; | |
83096483 | 735 | |
43b4e305 MS |
736 | FOREACH_DIRENT(de, dir, return -errno) { |
737 | _cleanup_free_ char *dest = NULL; | |
738 | bool found_path = false, found_dest, b = false; | |
739 | int q; | |
83096483 | 740 | |
43b4e305 | 741 | dirent_ensure_type(dir, de); |
83096483 | 742 | |
43b4e305 MS |
743 | if (de->d_type != DT_LNK) |
744 | continue; | |
83096483 | 745 | |
43b4e305 MS |
746 | /* Acquire symlink destination */ |
747 | q = readlinkat_malloc(dirfd(dir), de->d_name, &dest); | |
748 | if (q == -ENOENT) | |
749 | continue; | |
750 | if (q < 0) { | |
83096483 LP |
751 | if (r == 0) |
752 | r = q; | |
43b4e305 MS |
753 | continue; |
754 | } | |
83096483 | 755 | |
43b4e305 MS |
756 | /* Make absolute */ |
757 | if (!path_is_absolute(dest)) { | |
758 | char *x; | |
83096483 | 759 | |
43b4e305 MS |
760 | x = path_join(dir_path, dest); |
761 | if (!x) | |
ea55addc | 762 | return -ENOMEM; |
83096483 | 763 | |
43b4e305 MS |
764 | free_and_replace(dest, x); |
765 | } | |
83096483 | 766 | |
43b4e305 MS |
767 | assert(unit_name_is_valid(i->name, UNIT_NAME_ANY)); |
768 | if (!ignore_same_name) | |
769 | /* Check if the symlink itself matches what we are looking for. | |
770 | * | |
771 | * If ignore_same_name is specified, we are in one of the directories which | |
772 | * have lower priority than the unit file, and even if a file or symlink with | |
773 | * this name was found, we should ignore it. */ | |
774 | found_path = streq(de->d_name, i->name); | |
0ec0deaa | 775 | |
43b4e305 MS |
776 | /* Check if what the symlink points to matches what we are looking for */ |
777 | found_dest = streq(basename(dest), i->name); | |
0ec0deaa | 778 | |
43b4e305 MS |
779 | if (found_path && found_dest) { |
780 | _cleanup_free_ char *p = NULL, *t = NULL; | |
0ec0deaa | 781 | |
43b4e305 MS |
782 | /* Filter out same name links in the main |
783 | * config path */ | |
784 | p = path_make_absolute(de->d_name, dir_path); | |
785 | t = path_make_absolute(i->name, config_path); | |
83096483 | 786 | |
43b4e305 MS |
787 | if (!p || !t) |
788 | return -ENOMEM; | |
83096483 | 789 | |
43b4e305 MS |
790 | b = path_equal(p, t); |
791 | } | |
83096483 | 792 | |
43b4e305 MS |
793 | if (b) |
794 | *same_name_link = true; | |
795 | else if (found_path || found_dest) { | |
796 | if (!match_aliases) | |
797 | return 1; | |
83096483 | 798 | |
43b4e305 MS |
799 | /* Check if symlink name is in the set of names used by [Install] */ |
800 | q = is_symlink_with_known_name(i, de->d_name); | |
801 | if (q < 0) | |
802 | return q; | |
803 | if (q > 0) | |
804 | return 1; | |
83096483 LP |
805 | } |
806 | } | |
d25e100b LP |
807 | |
808 | return r; | |
83096483 LP |
809 | } |
810 | ||
811 | static int find_symlinks( | |
0ec0deaa | 812 | const char *root_dir, |
26526f98 | 813 | const UnitFileInstallInfo *i, |
d9b4b48f | 814 | bool match_name, |
4b37c89f | 815 | bool ignore_same_name, |
83096483 LP |
816 | const char *config_path, |
817 | bool *same_name_link) { | |
818 | ||
43b4e305 MS |
819 | _cleanup_closedir_ DIR *config_dir = NULL; |
820 | struct dirent *de; | |
821 | int r = 0; | |
83096483 | 822 | |
5cd8ae31 | 823 | assert(i); |
83096483 LP |
824 | assert(config_path); |
825 | assert(same_name_link); | |
826 | ||
43b4e305 MS |
827 | config_dir = opendir(config_path); |
828 | if (!config_dir) { | |
a1feacf7 | 829 | if (IN_SET(errno, ENOENT, ENOTDIR, EACCES)) |
d5891fda | 830 | return 0; |
83096483 | 831 | return -errno; |
d5891fda | 832 | } |
83096483 | 833 | |
43b4e305 MS |
834 | FOREACH_DIRENT(de, config_dir, return -errno) { |
835 | const char *suffix; | |
836 | _cleanup_free_ const char *path = NULL; | |
837 | _cleanup_closedir_ DIR *d = NULL; | |
838 | ||
839 | dirent_ensure_type(config_dir, de); | |
840 | ||
841 | if (de->d_type != DT_DIR) | |
842 | continue; | |
843 | ||
844 | suffix = strrchr(de->d_name, '.'); | |
845 | if (!STRPTR_IN_SET(suffix, ".wants", ".requires")) | |
846 | continue; | |
847 | ||
848 | path = path_join(config_path, de->d_name); | |
849 | if (!path) | |
850 | return -ENOMEM; | |
851 | ||
852 | d = opendir(path); | |
853 | if (!d) { | |
854 | log_error_errno(errno, "Failed to open directory '%s' while scanning for symlinks, ignoring: %m", path); | |
855 | continue; | |
856 | } | |
857 | ||
858 | r = find_symlinks_in_directory(d, path, root_dir, i, match_name, ignore_same_name, config_path, same_name_link); | |
859 | if (r > 0) | |
860 | return 1; | |
861 | else if (r < 0) | |
862 | log_debug_errno(r, "Failed to lookup for symlinks in '%s': %m", path); | |
863 | } | |
864 | ||
865 | /* We didn't find any suitable symlinks in .wants or .requires directories, let's look for linked unit files in this directory. */ | |
866 | rewinddir(config_dir); | |
867 | return find_symlinks_in_directory(config_dir, config_path, root_dir, i, match_name, ignore_same_name, config_path, same_name_link); | |
83096483 LP |
868 | } |
869 | ||
870 | static int find_symlinks_in_scope( | |
d2561cfd | 871 | UnitFileScope scope, |
e1c5c2b0 | 872 | const LookupPaths *paths, |
26526f98 | 873 | const UnitFileInstallInfo *i, |
d9b4b48f | 874 | bool match_name, |
83096483 LP |
875 | UnitFileState *state) { |
876 | ||
dfead90d LP |
877 | bool same_name_link_runtime = false, same_name_link_config = false; |
878 | bool enabled_in_runtime = false, enabled_at_all = false; | |
4b37c89f | 879 | bool ignore_same_name = false; |
dfead90d | 880 | char **p; |
0ec0deaa | 881 | int r; |
83096483 | 882 | |
e1c5c2b0 | 883 | assert(paths); |
5cd8ae31 | 884 | assert(i); |
83096483 | 885 | |
4b37c89f ZJS |
886 | /* As we iterate over the list of search paths in paths->search_path, we may encounter "same name" |
887 | * symlinks. The ones which are "below" (i.e. have lower priority) than the unit file itself are | |
5238e957 | 888 | * effectively masked, so we should ignore them. */ |
4b37c89f | 889 | |
dfead90d LP |
890 | STRV_FOREACH(p, paths->search_path) { |
891 | bool same_name_link = false; | |
892 | ||
4b37c89f | 893 | r = find_symlinks(paths->root_dir, i, match_name, ignore_same_name, *p, &same_name_link); |
dfead90d LP |
894 | if (r < 0) |
895 | return r; | |
896 | if (r > 0) { | |
897 | /* We found symlinks in this dir? Yay! Let's see where precisely it is enabled. */ | |
898 | ||
bb2682bc | 899 | if (path_equal_ptr(*p, paths->persistent_config)) { |
dfead90d LP |
900 | /* This is the best outcome, let's return it immediately. */ |
901 | *state = UNIT_FILE_ENABLED; | |
902 | return 1; | |
903 | } | |
904 | ||
bb2682bc | 905 | /* look for global enablement of user units */ |
d2561cfd ZJS |
906 | if (scope == UNIT_FILE_USER && path_is_user_config_dir(*p)) { |
907 | *state = UNIT_FILE_ENABLED; | |
908 | return 1; | |
909 | } | |
910 | ||
dfead90d LP |
911 | r = path_is_runtime(paths, *p, false); |
912 | if (r < 0) | |
913 | return r; | |
914 | if (r > 0) | |
915 | enabled_in_runtime = true; | |
916 | else | |
917 | enabled_at_all = true; | |
918 | ||
919 | } else if (same_name_link) { | |
bb2682bc | 920 | if (path_equal_ptr(*p, paths->persistent_config)) |
dfead90d LP |
921 | same_name_link_config = true; |
922 | else { | |
923 | r = path_is_runtime(paths, *p, false); | |
924 | if (r < 0) | |
925 | return r; | |
926 | if (r > 0) | |
927 | same_name_link_runtime = true; | |
928 | } | |
929 | } | |
4b37c89f ZJS |
930 | |
931 | /* Check if next iteration will be "below" the unit file (either a regular file | |
932 | * or a symlink), and hence should be ignored */ | |
933 | if (!ignore_same_name && path_startswith(i->path, *p)) | |
934 | ignore_same_name = true; | |
83096483 LP |
935 | } |
936 | ||
dfead90d | 937 | if (enabled_in_runtime) { |
0ec0deaa | 938 | *state = UNIT_FILE_ENABLED_RUNTIME; |
dfead90d LP |
939 | return 1; |
940 | } | |
941 | ||
942 | /* Here's a special rule: if the unit we are looking for is an instance, and it symlinked in the search path | |
943 | * outside of runtime and configuration directory, then we consider it statically enabled. Note we do that only | |
944 | * for instance, not for regular names, as those are merely aliases, while instances explicitly instantiate | |
945 | * something, and hence are a much stronger concept. */ | |
5cd8ae31 | 946 | if (enabled_at_all && unit_name_is_valid(i->name, UNIT_NAME_INSTANCE)) { |
dfead90d LP |
947 | *state = UNIT_FILE_STATIC; |
948 | return 1; | |
83096483 LP |
949 | } |
950 | ||
951 | /* Hmm, we didn't find it, but maybe we found the same name | |
952 | * link? */ | |
dfead90d | 953 | if (same_name_link_config) { |
0ec0deaa LP |
954 | *state = UNIT_FILE_LINKED; |
955 | return 1; | |
956 | } | |
83096483 LP |
957 | if (same_name_link_runtime) { |
958 | *state = UNIT_FILE_LINKED_RUNTIME; | |
959 | return 1; | |
83096483 LP |
960 | } |
961 | ||
962 | return 0; | |
963 | } | |
964 | ||
0ec0deaa | 965 | static void install_info_free(UnitFileInstallInfo *i) { |
83096483 | 966 | |
0ec0deaa LP |
967 | if (!i) |
968 | return; | |
83096483 | 969 | |
0ec0deaa LP |
970 | free(i->name); |
971 | free(i->path); | |
972 | strv_free(i->aliases); | |
973 | strv_free(i->wanted_by); | |
974 | strv_free(i->required_by); | |
975 | strv_free(i->also); | |
976 | free(i->default_instance); | |
977 | free(i->symlink_target); | |
978 | free(i); | |
979 | } | |
83096483 | 980 | |
0ec0deaa LP |
981 | static void install_context_done(InstallContext *c) { |
982 | assert(c); | |
83096483 | 983 | |
224b0e7a ZJS |
984 | c->will_process = ordered_hashmap_free_with_destructor(c->will_process, install_info_free); |
985 | c->have_processed = ordered_hashmap_free_with_destructor(c->have_processed, install_info_free); | |
0ec0deaa | 986 | } |
83096483 | 987 | |
0ec0deaa LP |
988 | static UnitFileInstallInfo *install_info_find(InstallContext *c, const char *name) { |
989 | UnitFileInstallInfo *i; | |
83096483 | 990 | |
0ec0deaa LP |
991 | i = ordered_hashmap_get(c->have_processed, name); |
992 | if (i) | |
993 | return i; | |
83096483 | 994 | |
0ec0deaa | 995 | return ordered_hashmap_get(c->will_process, name); |
83096483 LP |
996 | } |
997 | ||
af3d8113 | 998 | static int install_info_may_process( |
26526f98 | 999 | const UnitFileInstallInfo *i, |
af3d8113 ZJS |
1000 | const LookupPaths *paths, |
1001 | UnitFileChange **changes, | |
da6053d0 | 1002 | size_t *n_changes) { |
76adb5b8 LP |
1003 | assert(i); |
1004 | assert(paths); | |
1005 | ||
047d91f9 ZJS |
1006 | /* Checks whether the loaded unit file is one we should process, or is masked, |
1007 | * transient or generated and thus not subject to enable/disable operations. */ | |
76adb5b8 | 1008 | |
af3d8113 ZJS |
1009 | if (i->type == UNIT_FILE_TYPE_MASKED) { |
1010 | unit_file_changes_add(changes, n_changes, -ERFKILL, i->path, NULL); | |
76ec966f | 1011 | return -ERFKILL; |
af3d8113 ZJS |
1012 | } |
1013 | if (path_is_generator(paths, i->path) || | |
1014 | path_is_transient(paths, i->path)) { | |
1015 | unit_file_changes_add(changes, n_changes, -EADDRNOTAVAIL, i->path, NULL); | |
76adb5b8 | 1016 | return -EADDRNOTAVAIL; |
af3d8113 | 1017 | } |
76adb5b8 LP |
1018 | |
1019 | return 0; | |
1020 | } | |
1021 | ||
ff56349d ZJS |
1022 | /** |
1023 | * Adds a new UnitFileInstallInfo entry under name in the InstallContext.will_process | |
1024 | * hashmap, or retrieves the existing one if already present. | |
19539807 ZJS |
1025 | * |
1026 | * Returns negative on error, 0 if the unit was already known, 1 otherwise. | |
ff56349d | 1027 | */ |
83096483 LP |
1028 | static int install_info_add( |
1029 | InstallContext *c, | |
1030 | const char *name, | |
0ec0deaa | 1031 | const char *path, |
19539807 | 1032 | bool auxiliary, |
0ec0deaa LP |
1033 | UnitFileInstallInfo **ret) { |
1034 | ||
cab6235f | 1035 | UnitFileInstallInfo *i = NULL; |
83096483 LP |
1036 | int r; |
1037 | ||
1038 | assert(c); | |
83096483 | 1039 | |
08f46856 BR |
1040 | if (!name) { |
1041 | /* 'name' and 'path' must not both be null. Check here 'path' using assert_se() to | |
1042 | * workaround a bug in gcc that generates a -Wnonnull warning when calling basename(), | |
1043 | * but this cannot be possible in any code path (See #6119). */ | |
1044 | assert_se(path); | |
2b6bf07d | 1045 | name = basename(path); |
08f46856 | 1046 | } |
83096483 | 1047 | |
7410616c | 1048 | if (!unit_name_is_valid(name, UNIT_NAME_ANY)) |
83096483 LP |
1049 | return -EINVAL; |
1050 | ||
0ec0deaa LP |
1051 | i = install_info_find(c, name); |
1052 | if (i) { | |
19539807 ZJS |
1053 | i->auxiliary = i->auxiliary && auxiliary; |
1054 | ||
0ec0deaa LP |
1055 | if (ret) |
1056 | *ret = i; | |
83096483 | 1057 | return 0; |
0ec0deaa | 1058 | } |
83096483 | 1059 | |
d23aeead | 1060 | i = new(UnitFileInstallInfo, 1); |
83096483 LP |
1061 | if (!i) |
1062 | return -ENOMEM; | |
d23aeead LP |
1063 | |
1064 | *i = (UnitFileInstallInfo) { | |
1065 | .type = _UNIT_FILE_TYPE_INVALID, | |
1066 | .auxiliary = auxiliary, | |
1067 | }; | |
83096483 LP |
1068 | |
1069 | i->name = strdup(name); | |
1070 | if (!i->name) { | |
1071 | r = -ENOMEM; | |
1072 | goto fail; | |
1073 | } | |
1074 | ||
1075 | if (path) { | |
1076 | i->path = strdup(path); | |
1077 | if (!i->path) { | |
1078 | r = -ENOMEM; | |
1079 | goto fail; | |
1080 | } | |
1081 | } | |
1082 | ||
0b83974b | 1083 | r = ordered_hashmap_ensure_put(&c->will_process, &string_hash_ops, i->name, i); |
83096483 LP |
1084 | if (r < 0) |
1085 | goto fail; | |
1086 | ||
0ec0deaa LP |
1087 | if (ret) |
1088 | *ret = i; | |
1089 | ||
19539807 | 1090 | return 1; |
83096483 LP |
1091 | |
1092 | fail: | |
d25e100b | 1093 | install_info_free(i); |
83096483 LP |
1094 | return r; |
1095 | } | |
1096 | ||
a7724589 ZJS |
1097 | static int config_parse_alias( |
1098 | const char *unit, | |
1099 | const char *filename, | |
1100 | unsigned line, | |
1101 | const char *section, | |
1102 | unsigned section_line, | |
1103 | const char *lvalue, | |
1104 | int ltype, | |
1105 | const char *rvalue, | |
1106 | void *data, | |
1107 | void *userdata) { | |
1108 | ||
a7724589 ZJS |
1109 | UnitType type; |
1110 | ||
142468d8 | 1111 | assert(unit); |
a7724589 ZJS |
1112 | assert(filename); |
1113 | assert(lvalue); | |
1114 | assert(rvalue); | |
1115 | ||
142468d8 | 1116 | type = unit_name_to_type(unit); |
a7724589 ZJS |
1117 | if (!unit_type_may_alias(type)) |
1118 | return log_syntax(unit, LOG_WARNING, filename, line, 0, | |
3b8769bd | 1119 | "Alias= is not allowed for %s units, ignoring.", |
a7724589 ZJS |
1120 | unit_type_to_string(type)); |
1121 | ||
1122 | return config_parse_strv(unit, filename, line, section, section_line, | |
1123 | lvalue, ltype, rvalue, data, userdata); | |
1124 | } | |
1125 | ||
d54c4993 LP |
1126 | static int config_parse_also( |
1127 | const char *unit, | |
1128 | const char *filename, | |
1129 | unsigned line, | |
1130 | const char *section, | |
1131 | unsigned section_line, | |
1132 | const char *lvalue, | |
1133 | int ltype, | |
1134 | const char *rvalue, | |
1135 | void *data, | |
1136 | void *userdata) { | |
83096483 | 1137 | |
972f3176 | 1138 | UnitFileInstallInfo *info = userdata; |
0ec0deaa LP |
1139 | InstallContext *c = data; |
1140 | int r; | |
83096483 | 1141 | |
142468d8 | 1142 | assert(unit); |
83096483 LP |
1143 | assert(filename); |
1144 | assert(lvalue); | |
1145 | assert(rvalue); | |
1146 | ||
0ec0deaa | 1147 | for (;;) { |
a6612e65 | 1148 | _cleanup_free_ char *word = NULL, *printed = NULL; |
03da6513 | 1149 | |
0ec0deaa LP |
1150 | r = extract_first_word(&rvalue, &word, NULL, 0); |
1151 | if (r < 0) | |
1152 | return r; | |
03da6513 SS |
1153 | if (r == 0) |
1154 | break; | |
83096483 | 1155 | |
06536492 | 1156 | r = install_name_printf(info, word, &printed); |
d9e5e694 | 1157 | if (r < 0) |
83096483 | 1158 | return r; |
aedd4012 | 1159 | |
972f3176 | 1160 | r = install_info_add(c, printed, NULL, true, NULL); |
d9e5e694 | 1161 | if (r < 0) |
83096483 | 1162 | return r; |
aedd4012 | 1163 | |
a6612e65 | 1164 | r = strv_push(&info->also, printed); |
aedd4012 JS |
1165 | if (r < 0) |
1166 | return r; | |
0ec0deaa | 1167 | |
a6612e65 | 1168 | printed = NULL; |
83096483 LP |
1169 | } |
1170 | ||
1171 | return 0; | |
1172 | } | |
1173 | ||
d54c4993 LP |
1174 | static int config_parse_default_instance( |
1175 | const char *unit, | |
1176 | const char *filename, | |
1177 | unsigned line, | |
1178 | const char *section, | |
1179 | unsigned section_line, | |
1180 | const char *lvalue, | |
1181 | int ltype, | |
1182 | const char *rvalue, | |
1183 | void *data, | |
1184 | void *userdata) { | |
1185 | ||
cab6235f | 1186 | UnitFileInstallInfo *i = data; |
d7604756 | 1187 | _cleanup_free_ char *printed = NULL; |
d54c4993 LP |
1188 | int r; |
1189 | ||
142468d8 | 1190 | assert(unit); |
d54c4993 LP |
1191 | assert(filename); |
1192 | assert(lvalue); | |
1193 | assert(rvalue); | |
1194 | ||
142468d8 | 1195 | if (unit_name_is_valid(unit, UNIT_NAME_INSTANCE)) |
6597fa61 ZJS |
1196 | /* When enabling an instance, we might be using a template unit file, |
1197 | * but we should ignore DefaultInstance silently. */ | |
1198 | return 0; | |
142468d8 | 1199 | if (!unit_name_is_valid(unit, UNIT_NAME_TEMPLATE)) |
6597fa61 | 1200 | return log_syntax(unit, LOG_WARNING, filename, line, 0, |
10d67460 | 1201 | "DefaultInstance= only makes sense for template units, ignoring."); |
6597fa61 | 1202 | |
06536492 | 1203 | r = install_name_printf(i, rvalue, &printed); |
d54c4993 LP |
1204 | if (r < 0) |
1205 | return r; | |
1206 | ||
b5395600 JR |
1207 | if (isempty(printed)) { |
1208 | i->default_instance = mfree(i->default_instance); | |
1209 | return 0; | |
1210 | } | |
1211 | ||
d7604756 | 1212 | if (!unit_instance_is_valid(printed)) |
e5171296 ZJS |
1213 | return log_syntax(unit, LOG_WARNING, filename, line, SYNTHETIC_ERRNO(EINVAL), |
1214 | "Invalid DefaultInstance= value \"%s\".", printed); | |
d54c4993 | 1215 | |
3b319885 | 1216 | return free_and_replace(i->default_instance, printed); |
d54c4993 LP |
1217 | } |
1218 | ||
83096483 LP |
1219 | static int unit_file_load( |
1220 | InstallContext *c, | |
cab6235f | 1221 | UnitFileInstallInfo *info, |
83096483 | 1222 | const char *path, |
d04a9386 | 1223 | const char *root_dir, |
0ec0deaa | 1224 | SearchFlags flags) { |
83096483 | 1225 | |
f975e971 | 1226 | const ConfigTableItem items[] = { |
a7724589 | 1227 | { "Install", "Alias", config_parse_alias, 0, &info->aliases }, |
d54c4993 LP |
1228 | { "Install", "WantedBy", config_parse_strv, 0, &info->wanted_by }, |
1229 | { "Install", "RequiredBy", config_parse_strv, 0, &info->required_by }, | |
1230 | { "Install", "DefaultInstance", config_parse_default_instance, 0, info }, | |
1231 | { "Install", "Also", config_parse_also, 0, c }, | |
d54c4993 | 1232 | {} |
83096483 LP |
1233 | }; |
1234 | ||
133e5b36 | 1235 | UnitType type; |
7fd1b19b | 1236 | _cleanup_fclose_ FILE *f = NULL; |
0ec0deaa LP |
1237 | _cleanup_close_ int fd = -1; |
1238 | struct stat st; | |
1239 | int r; | |
83096483 | 1240 | |
83096483 LP |
1241 | assert(info); |
1242 | assert(path); | |
1243 | ||
d04a9386 LP |
1244 | if (!(flags & SEARCH_DROPIN)) { |
1245 | /* Loading or checking for the main unit file… */ | |
133e5b36 | 1246 | |
d04a9386 LP |
1247 | type = unit_name_to_type(info->name); |
1248 | if (type < 0) | |
1249 | return -EINVAL; | |
baaa35ad ZJS |
1250 | if (unit_name_is_valid(info->name, UNIT_NAME_TEMPLATE|UNIT_NAME_INSTANCE) && !unit_type_may_template(type)) |
1251 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), | |
bce84e10 | 1252 | "%s: unit type %s cannot be templated, ignoring.", path, unit_type_to_string(type)); |
d04a9386 LP |
1253 | |
1254 | if (!(flags & SEARCH_LOAD)) { | |
4276749d | 1255 | if (lstat(path, &st) < 0) |
d04a9386 LP |
1256 | return -errno; |
1257 | ||
1258 | if (null_or_empty(&st)) | |
1259 | info->type = UNIT_FILE_TYPE_MASKED; | |
1260 | else if (S_ISREG(st.st_mode)) | |
1261 | info->type = UNIT_FILE_TYPE_REGULAR; | |
1262 | else if (S_ISLNK(st.st_mode)) | |
1263 | return -ELOOP; | |
1264 | else if (S_ISDIR(st.st_mode)) | |
1265 | return -EISDIR; | |
1266 | else | |
1267 | return -ENOTTY; | |
1268 | ||
1269 | return 0; | |
1270 | } | |
1271 | ||
1272 | fd = open(path, O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW); | |
1273 | if (fd < 0) | |
d25e100b | 1274 | return -errno; |
d04a9386 LP |
1275 | } else { |
1276 | /* 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 | 1277 | |
d04a9386 LP |
1278 | if (!(flags & SEARCH_LOAD)) |
1279 | return 0; | |
0ec0deaa | 1280 | |
d04a9386 LP |
1281 | fd = chase_symlinks_and_open(path, root_dir, 0, O_RDONLY|O_CLOEXEC|O_NOCTTY, NULL); |
1282 | if (fd < 0) | |
1283 | return fd; | |
e94937df LN |
1284 | } |
1285 | ||
0ec0deaa LP |
1286 | if (fstat(fd, &st) < 0) |
1287 | return -errno; | |
d04a9386 | 1288 | |
0ec0deaa | 1289 | if (null_or_empty(&st)) { |
d04a9386 LP |
1290 | if ((flags & SEARCH_DROPIN) == 0) |
1291 | info->type = UNIT_FILE_TYPE_MASKED; | |
1292 | ||
0ec0deaa LP |
1293 | return 0; |
1294 | } | |
3cc44114 LP |
1295 | |
1296 | r = stat_verify_regular(&st); | |
1297 | if (r < 0) | |
1298 | return r; | |
83096483 | 1299 | |
4fa744a3 | 1300 | f = take_fdopen(&fd, "r"); |
0ec0deaa LP |
1301 | if (!f) |
1302 | return -errno; | |
83096483 | 1303 | |
d04a9386 LP |
1304 | /* c is only needed if we actually load the file (it's referenced from items[] btw, in case you wonder.) */ |
1305 | assert(c); | |
1306 | ||
142468d8 | 1307 | r = config_parse(info->name, path, f, |
f4331d0d ZJS |
1308 | "Install\0" |
1309 | "-Unit\0" | |
1310 | "-Automount\0" | |
1311 | "-Device\0" | |
1312 | "-Mount\0" | |
1313 | "-Path\0" | |
1314 | "-Scope\0" | |
1315 | "-Service\0" | |
1316 | "-Slice\0" | |
1317 | "-Socket\0" | |
1318 | "-Swap\0" | |
1319 | "-Target\0" | |
1320 | "-Timer\0", | |
36f822c4 | 1321 | config_item_table_lookup, items, |
7ade8982 | 1322 | 0, info, |
4f9ff96a | 1323 | NULL); |
83096483 | 1324 | if (r < 0) |
59108fbe | 1325 | return log_debug_errno(r, "Failed to parse %s: %m", info->name); |
83096483 | 1326 | |
d04a9386 LP |
1327 | if ((flags & SEARCH_DROPIN) == 0) |
1328 | info->type = UNIT_FILE_TYPE_REGULAR; | |
aedd4012 | 1329 | |
78d54bd4 | 1330 | return |
693eb9a2 LP |
1331 | (int) strv_length(info->aliases) + |
1332 | (int) strv_length(info->wanted_by) + | |
1333 | (int) strv_length(info->required_by); | |
83096483 LP |
1334 | } |
1335 | ||
0ec0deaa LP |
1336 | static int unit_file_load_or_readlink( |
1337 | InstallContext *c, | |
1338 | UnitFileInstallInfo *info, | |
1339 | const char *path, | |
1340 | const char *root_dir, | |
1341 | SearchFlags flags) { | |
0efaa484 | 1342 | |
4276749d | 1343 | _cleanup_free_ char *resolved = NULL; |
0ec0deaa LP |
1344 | int r; |
1345 | ||
d04a9386 LP |
1346 | r = unit_file_load(c, info, path, root_dir, flags); |
1347 | if (r != -ELOOP || (flags & SEARCH_DROPIN)) | |
0ec0deaa LP |
1348 | return r; |
1349 | ||
4276749d ZJS |
1350 | r = chase_symlinks(path, root_dir, CHASE_WARN | CHASE_NONEXISTENT, &resolved, NULL); |
1351 | if (r >= 0 && | |
1352 | root_dir && | |
1353 | path_equal_ptr(path_startswith(resolved, root_dir), "dev/null")) | |
1354 | /* When looking under root_dir, we can't expect /dev/ to be mounted, | |
1355 | * so let's see if the path is a (possibly dangling) symlink to /dev/null. */ | |
0ec0deaa | 1356 | info->type = UNIT_FILE_TYPE_MASKED; |
4276749d | 1357 | |
0efaa484 | 1358 | else if (r > 0 && null_or_empty_path(resolved) > 0) |
4276749d ZJS |
1359 | |
1360 | info->type = UNIT_FILE_TYPE_MASKED; | |
1361 | ||
0ec0deaa | 1362 | else { |
640f3b14 | 1363 | _cleanup_free_ char *target = NULL; |
0ec0deaa LP |
1364 | const char *bn; |
1365 | UnitType a, b; | |
1366 | ||
4276749d ZJS |
1367 | /* This is a symlink, let's read it. We read the link again, because last time |
1368 | * we followed the link until resolution, and here we need to do one step. */ | |
640f3b14 AZ |
1369 | |
1370 | r = readlink_malloc(path, &target); | |
1371 | if (r < 0) | |
1372 | return r; | |
1373 | ||
401017e0 | 1374 | bn = basename(target); |
0ec0deaa LP |
1375 | |
1376 | if (unit_name_is_valid(info->name, UNIT_NAME_PLAIN)) { | |
1377 | ||
1378 | if (!unit_name_is_valid(bn, UNIT_NAME_PLAIN)) | |
1379 | return -EINVAL; | |
1380 | ||
1381 | } else if (unit_name_is_valid(info->name, UNIT_NAME_INSTANCE)) { | |
1382 | ||
1383 | if (!unit_name_is_valid(bn, UNIT_NAME_INSTANCE|UNIT_NAME_TEMPLATE)) | |
1384 | return -EINVAL; | |
1385 | ||
1386 | } else if (unit_name_is_valid(info->name, UNIT_NAME_TEMPLATE)) { | |
1387 | ||
1388 | if (!unit_name_is_valid(bn, UNIT_NAME_TEMPLATE)) | |
1389 | return -EINVAL; | |
1390 | } else | |
1391 | return -EINVAL; | |
1392 | ||
1393 | /* Enforce that the symlink destination does not | |
1394 | * change the unit file type. */ | |
1395 | ||
1396 | a = unit_name_to_type(info->name); | |
1397 | b = unit_name_to_type(bn); | |
1398 | if (a < 0 || b < 0 || a != b) | |
1399 | return -EINVAL; | |
1400 | ||
401017e0 LP |
1401 | if (path_is_absolute(target)) |
1402 | /* This is an absolute path, prefix the root so that we always deal with fully qualified paths */ | |
c6134d3e | 1403 | info->symlink_target = path_join(root_dir, target); |
401017e0 LP |
1404 | else |
1405 | /* This is a relative path, take it relative to the dir the symlink is located in. */ | |
1406 | info->symlink_target = file_in_same_dir(path, target); | |
1407 | if (!info->symlink_target) | |
1408 | return -ENOMEM; | |
1409 | ||
0ec0deaa | 1410 | info->type = UNIT_FILE_TYPE_SYMLINK; |
0ec0deaa LP |
1411 | } |
1412 | ||
1413 | return 0; | |
1414 | } | |
1415 | ||
83096483 LP |
1416 | static int unit_file_search( |
1417 | InstallContext *c, | |
cab6235f | 1418 | UnitFileInstallInfo *info, |
a8ffe6fb | 1419 | const LookupPaths *paths, |
0ec0deaa | 1420 | SearchFlags flags) { |
83096483 | 1421 | |
d04a9386 LP |
1422 | const char *dropin_dir_name = NULL, *dropin_template_dir_name = NULL; |
1423 | _cleanup_strv_free_ char **dirs = NULL, **files = NULL; | |
64f9280e | 1424 | _cleanup_free_ char *template = NULL; |
142468d8 | 1425 | bool found_unit = false; |
d04a9386 LP |
1426 | int r, result; |
1427 | char **p; | |
83096483 | 1428 | |
83096483 LP |
1429 | assert(info); |
1430 | assert(paths); | |
1431 | ||
0ec0deaa LP |
1432 | /* Was this unit already loaded? */ |
1433 | if (info->type != _UNIT_FILE_TYPE_INVALID) | |
1434 | return 0; | |
1435 | ||
278fa575 | 1436 | if (info->path) |
e4bb56c7 | 1437 | return unit_file_load_or_readlink(c, info, info->path, paths->root_dir, flags); |
83096483 LP |
1438 | |
1439 | assert(info->name); | |
1440 | ||
142468d8 JL |
1441 | if (unit_name_is_valid(info->name, UNIT_NAME_INSTANCE)) { |
1442 | r = unit_name_template(info->name, &template); | |
1443 | if (r < 0) | |
1444 | return r; | |
1445 | } | |
1446 | ||
a3c4eb07 | 1447 | STRV_FOREACH(p, paths->search_path) { |
e50bd775 | 1448 | _cleanup_free_ char *path = NULL; |
83096483 | 1449 | |
657ee2d8 | 1450 | path = path_join(*p, info->name); |
83096483 LP |
1451 | if (!path) |
1452 | return -ENOMEM; | |
1453 | ||
e4bb56c7 | 1454 | r = unit_file_load_or_readlink(c, info, path, paths->root_dir, flags); |
0155928c | 1455 | if (r >= 0) { |
ae2a15bc | 1456 | info->path = TAKE_PTR(path); |
142468d8 JL |
1457 | result = r; |
1458 | found_unit = true; | |
1459 | break; | |
a1feacf7 | 1460 | } else if (!IN_SET(r, -ENOENT, -ENOTDIR, -EACCES)) |
0155928c | 1461 | return r; |
e50bd775 | 1462 | } |
62b00233 | 1463 | |
142468d8 JL |
1464 | if (!found_unit && template) { |
1465 | ||
e50bd775 LP |
1466 | /* Unit file doesn't exist, however instance |
1467 | * enablement was requested. We will check if it is | |
1468 | * possible to load template unit file. */ | |
29283ea4 | 1469 | |
a3c4eb07 | 1470 | STRV_FOREACH(p, paths->search_path) { |
e50bd775 LP |
1471 | _cleanup_free_ char *path = NULL; |
1472 | ||
657ee2d8 | 1473 | path = path_join(*p, template); |
62b00233 ZJS |
1474 | if (!path) |
1475 | return -ENOMEM; | |
29283ea4 | 1476 | |
e4bb56c7 | 1477 | r = unit_file_load_or_readlink(c, info, path, paths->root_dir, flags); |
0155928c | 1478 | if (r >= 0) { |
ae2a15bc | 1479 | info->path = TAKE_PTR(path); |
142468d8 JL |
1480 | result = r; |
1481 | found_unit = true; | |
1482 | break; | |
a1feacf7 | 1483 | } else if (!IN_SET(r, -ENOENT, -ENOTDIR, -EACCES)) |
0155928c | 1484 | return r; |
29283ea4 | 1485 | } |
83096483 LP |
1486 | } |
1487 | ||
baaa35ad ZJS |
1488 | if (!found_unit) |
1489 | return log_debug_errno(SYNTHETIC_ERRNO(ENOENT), | |
1490 | "Cannot find unit %s%s%s.", | |
1491 | info->name, template ? " or " : "", strempty(template)); | |
142468d8 | 1492 | |
9639b175 FB |
1493 | if (info->type == UNIT_FILE_TYPE_MASKED) |
1494 | return result; | |
1495 | ||
142468d8 JL |
1496 | /* Search for drop-in directories */ |
1497 | ||
1498 | dropin_dir_name = strjoina(info->name, ".d"); | |
1499 | STRV_FOREACH(p, paths->search_path) { | |
1500 | char *path; | |
1501 | ||
62a85ee0 | 1502 | path = path_join(*p, dropin_dir_name); |
142468d8 JL |
1503 | if (!path) |
1504 | return -ENOMEM; | |
1505 | ||
1506 | r = strv_consume(&dirs, path); | |
1507 | if (r < 0) | |
1508 | return r; | |
1509 | } | |
1510 | ||
1511 | if (template) { | |
1512 | dropin_template_dir_name = strjoina(template, ".d"); | |
1513 | STRV_FOREACH(p, paths->search_path) { | |
1514 | char *path; | |
1515 | ||
62a85ee0 | 1516 | path = path_join(*p, dropin_template_dir_name); |
142468d8 JL |
1517 | if (!path) |
1518 | return -ENOMEM; | |
1519 | ||
1520 | r = strv_consume(&dirs, path); | |
1521 | if (r < 0) | |
1522 | return r; | |
1523 | } | |
1524 | } | |
1525 | ||
1526 | /* Load drop-in conf files */ | |
1527 | ||
1528 | r = conf_files_list_strv(&files, ".conf", NULL, 0, (const char**) dirs); | |
1529 | if (r < 0) | |
1530 | return log_debug_errno(r, "Failed to get list of conf files: %m"); | |
1531 | ||
1532 | STRV_FOREACH(p, files) { | |
d04a9386 | 1533 | r = unit_file_load_or_readlink(c, info, *p, paths->root_dir, flags | SEARCH_DROPIN); |
142468d8 JL |
1534 | if (r < 0) |
1535 | return log_debug_errno(r, "Failed to load conf file %s: %m", *p); | |
1536 | } | |
1537 | ||
1538 | return result; | |
83096483 LP |
1539 | } |
1540 | ||
0ec0deaa LP |
1541 | static int install_info_follow( |
1542 | InstallContext *c, | |
1543 | UnitFileInstallInfo *i, | |
83096483 | 1544 | const char *root_dir, |
9f6cbcf5 LP |
1545 | SearchFlags flags, |
1546 | bool ignore_different_name) { | |
0ec0deaa LP |
1547 | |
1548 | assert(c); | |
1549 | assert(i); | |
1550 | ||
1551 | if (i->type != UNIT_FILE_TYPE_SYMLINK) | |
1552 | return -EINVAL; | |
1553 | if (!i->symlink_target) | |
1554 | return -EINVAL; | |
1555 | ||
1556 | /* If the basename doesn't match, the caller should add a | |
1557 | * complete new entry for this. */ | |
1558 | ||
9f6cbcf5 | 1559 | if (!ignore_different_name && !streq(basename(i->symlink_target), i->name)) |
0ec0deaa LP |
1560 | return -EXDEV; |
1561 | ||
3b319885 | 1562 | free_and_replace(i->path, i->symlink_target); |
0ec0deaa LP |
1563 | i->type = _UNIT_FILE_TYPE_INVALID; |
1564 | ||
1565 | return unit_file_load_or_readlink(c, i, i->path, root_dir, flags); | |
1566 | } | |
1567 | ||
64f9280e | 1568 | /** |
ff56349d ZJS |
1569 | * Search for the unit file. If the unit name is a symlink, follow the symlink to the |
1570 | * target, maybe more than once. Propagate the instance name if present. | |
64f9280e | 1571 | */ |
0ec0deaa LP |
1572 | static int install_info_traverse( |
1573 | UnitFileScope scope, | |
1574 | InstallContext *c, | |
0ec0deaa LP |
1575 | const LookupPaths *paths, |
1576 | UnitFileInstallInfo *start, | |
1577 | SearchFlags flags, | |
1578 | UnitFileInstallInfo **ret) { | |
83096483 | 1579 | |
cab6235f | 1580 | UnitFileInstallInfo *i; |
0ec0deaa | 1581 | unsigned k = 0; |
83096483 LP |
1582 | int r; |
1583 | ||
1584 | assert(paths); | |
0ec0deaa LP |
1585 | assert(start); |
1586 | assert(c); | |
83096483 | 1587 | |
e4bb56c7 | 1588 | r = unit_file_search(c, start, paths, flags); |
83096483 LP |
1589 | if (r < 0) |
1590 | return r; | |
1591 | ||
0ec0deaa LP |
1592 | i = start; |
1593 | while (i->type == UNIT_FILE_TYPE_SYMLINK) { | |
1594 | /* Follow the symlink */ | |
83096483 | 1595 | |
0ec0deaa LP |
1596 | if (++k > UNIT_FILE_FOLLOW_SYMLINK_MAX) |
1597 | return -ELOOP; | |
83096483 | 1598 | |
e1c5c2b0 | 1599 | if (!(flags & SEARCH_FOLLOW_CONFIG_SYMLINKS)) { |
dfead90d | 1600 | r = path_is_config(paths, i->path, true); |
e1c5c2b0 LP |
1601 | if (r < 0) |
1602 | return r; | |
1603 | if (r > 0) | |
1604 | return -ELOOP; | |
1605 | } | |
83096483 | 1606 | |
9f6cbcf5 | 1607 | r = install_info_follow(c, i, paths->root_dir, flags, false); |
0155928c | 1608 | if (r == -EXDEV) { |
0ec0deaa LP |
1609 | _cleanup_free_ char *buffer = NULL; |
1610 | const char *bn; | |
83096483 | 1611 | |
0ec0deaa LP |
1612 | /* Target has a different name, create a new |
1613 | * install info object for that, and continue | |
1614 | * with that. */ | |
83096483 | 1615 | |
0ec0deaa | 1616 | bn = basename(i->symlink_target); |
83096483 | 1617 | |
0ec0deaa LP |
1618 | if (unit_name_is_valid(i->name, UNIT_NAME_INSTANCE) && |
1619 | unit_name_is_valid(bn, UNIT_NAME_TEMPLATE)) { | |
83096483 | 1620 | |
0ec0deaa LP |
1621 | _cleanup_free_ char *instance = NULL; |
1622 | ||
1623 | r = unit_name_to_instance(i->name, &instance); | |
1624 | if (r < 0) | |
1625 | return r; | |
1626 | ||
1627 | r = unit_name_replace_instance(bn, instance, &buffer); | |
1628 | if (r < 0) | |
1629 | return r; | |
1630 | ||
9f6cbcf5 LP |
1631 | if (streq(buffer, i->name)) { |
1632 | ||
1633 | /* We filled in the instance, and the target stayed the same? If so, then let's | |
1634 | * honour the link as it is. */ | |
1635 | ||
1636 | r = install_info_follow(c, i, paths->root_dir, flags, true); | |
1637 | if (r < 0) | |
1638 | return r; | |
1639 | ||
1640 | continue; | |
1641 | } | |
1642 | ||
0ec0deaa LP |
1643 | bn = buffer; |
1644 | } | |
1645 | ||
19539807 | 1646 | r = install_info_add(c, bn, NULL, false, &i); |
0ec0deaa LP |
1647 | if (r < 0) |
1648 | return r; | |
1649 | ||
0155928c | 1650 | /* Try again, with the new target we found. */ |
e4bb56c7 | 1651 | r = unit_file_search(c, i, paths, flags); |
893275df ZJS |
1652 | if (r == -ENOENT) |
1653 | /* Translate error code to highlight this specific case */ | |
1654 | return -ENOLINK; | |
0ec0deaa LP |
1655 | } |
1656 | ||
0155928c ZJS |
1657 | if (r < 0) |
1658 | return r; | |
83096483 LP |
1659 | } |
1660 | ||
0ec0deaa LP |
1661 | if (ret) |
1662 | *ret = i; | |
83096483 | 1663 | |
0ec0deaa LP |
1664 | return 0; |
1665 | } | |
83096483 | 1666 | |
ff56349d ZJS |
1667 | /** |
1668 | * Call install_info_add() with name_or_path as the path (if name_or_path starts with "/") | |
1669 | * or the name (otherwise). root_dir is prepended to the path. | |
1670 | */ | |
401017e0 LP |
1671 | static int install_info_add_auto( |
1672 | InstallContext *c, | |
1673 | const LookupPaths *paths, | |
1674 | const char *name_or_path, | |
1675 | UnitFileInstallInfo **ret) { | |
1676 | ||
1677 | assert(c); | |
1678 | assert(name_or_path); | |
1679 | ||
1680 | if (path_is_absolute(name_or_path)) { | |
1681 | const char *pp; | |
1682 | ||
1683 | pp = prefix_roota(paths->root_dir, name_or_path); | |
1684 | ||
19539807 | 1685 | return install_info_add(c, NULL, pp, false, ret); |
401017e0 | 1686 | } else |
19539807 | 1687 | return install_info_add(c, name_or_path, NULL, false, ret); |
401017e0 LP |
1688 | } |
1689 | ||
0ec0deaa LP |
1690 | static int install_info_discover( |
1691 | UnitFileScope scope, | |
1692 | InstallContext *c, | |
0ec0deaa LP |
1693 | const LookupPaths *paths, |
1694 | const char *name, | |
1695 | SearchFlags flags, | |
59108fbe ZJS |
1696 | UnitFileInstallInfo **ret, |
1697 | UnitFileChange **changes, | |
da6053d0 | 1698 | size_t *n_changes) { |
83096483 | 1699 | |
0ec0deaa LP |
1700 | UnitFileInstallInfo *i; |
1701 | int r; | |
83096483 | 1702 | |
0ec0deaa LP |
1703 | assert(c); |
1704 | assert(paths); | |
1705 | assert(name); | |
1706 | ||
401017e0 | 1707 | r = install_info_add_auto(c, paths, name, &i); |
59108fbe ZJS |
1708 | if (r >= 0) |
1709 | r = install_info_traverse(scope, c, paths, i, flags, ret); | |
83096483 | 1710 | |
59108fbe ZJS |
1711 | if (r < 0) |
1712 | unit_file_changes_add(changes, n_changes, r, name, NULL); | |
1713 | return r; | |
83096483 LP |
1714 | } |
1715 | ||
1e475a0a RB |
1716 | static int install_info_discover_and_check( |
1717 | UnitFileScope scope, | |
1718 | InstallContext *c, | |
1719 | const LookupPaths *paths, | |
1720 | const char *name, | |
1721 | SearchFlags flags, | |
1722 | UnitFileInstallInfo **ret, | |
1723 | UnitFileChange **changes, | |
1724 | size_t *n_changes) { | |
1725 | ||
1726 | int r; | |
1727 | ||
1728 | r = install_info_discover(scope, c, paths, name, flags, ret, changes, n_changes); | |
1729 | if (r < 0) | |
1730 | return r; | |
1731 | ||
1732 | return install_info_may_process(ret ? *ret : NULL, paths, changes, n_changes); | |
1733 | } | |
1734 | ||
3f57bc22 ZJS |
1735 | int unit_file_verify_alias(const UnitFileInstallInfo *i, const char *dst, char **ret_dst) { |
1736 | _cleanup_free_ char *dst_updated = NULL; | |
aa0f357f ZJS |
1737 | int r; |
1738 | ||
3f57bc22 ZJS |
1739 | /* Verify that dst is a valid either a valid alias or a valid .wants/.requires symlink for the target |
1740 | * unit *i. Return negative on error or if not compatible, zero on success. | |
1741 | * | |
1742 | * ret_dst is set in cases where "instance propagation" happens, i.e. when the instance part is | |
1743 | * inserted into dst. It is not normally set, even on success, so that the caller can easily | |
162392b7 | 1744 | * distinguish the case where instance propagation occurred. |
3f57bc22 ZJS |
1745 | */ |
1746 | ||
1747 | const char *path_alias = strrchr(dst, '/'); | |
1748 | if (path_alias) { | |
1749 | /* This branch covers legacy Alias= function of creating .wants and .requires symlinks. */ | |
1750 | _cleanup_free_ char *dir = NULL; | |
1bf15585 | 1751 | char *p; |
aa0f357f | 1752 | |
3f57bc22 | 1753 | path_alias ++; /* skip over slash */ |
aa0f357f | 1754 | |
3f57bc22 ZJS |
1755 | dir = dirname_malloc(dst); |
1756 | if (!dir) | |
1757 | return log_oom(); | |
aa0f357f | 1758 | |
1bf15585 ZJS |
1759 | p = endswith(dir, ".wants"); |
1760 | if (!p) | |
1761 | p = endswith(dir, ".requires"); | |
1762 | if (!p) | |
3f57bc22 ZJS |
1763 | return log_warning_errno(SYNTHETIC_ERRNO(EXDEV), |
1764 | "Invalid path \"%s\" in alias.", dir); | |
1bf15585 ZJS |
1765 | *p = '\0'; /* dir should now be a unit name */ |
1766 | ||
73ce91a0 ZJS |
1767 | UnitNameFlags type = unit_name_classify(dir); |
1768 | if (type < 0) | |
1bf15585 ZJS |
1769 | return log_warning_errno(SYNTHETIC_ERRNO(EXDEV), |
1770 | "Invalid unit name component \"%s\" in alias.", dir); | |
1771 | ||
73ce91a0 | 1772 | const bool instance_propagation = type == UNIT_NAME_TEMPLATE; |
3f57bc22 ZJS |
1773 | |
1774 | /* That's the name we want to use for verification. */ | |
1bf15585 | 1775 | r = unit_symlink_name_compatible(path_alias, i->name, instance_propagation); |
aa0f357f | 1776 | if (r < 0) |
3f57bc22 ZJS |
1777 | return log_error_errno(r, "Failed to verify alias validity: %m"); |
1778 | if (r == 0) | |
1779 | return log_warning_errno(SYNTHETIC_ERRNO(EXDEV), | |
1780 | "Invalid unit %s symlink %s.", | |
1781 | i->name, dst); | |
1782 | ||
1783 | } else { | |
1784 | /* If the symlink target has an instance set and the symlink source doesn't, we "propagate | |
1785 | * the instance", i.e. instantiate the symlink source with the target instance. */ | |
1786 | if (unit_name_is_valid(dst, UNIT_NAME_TEMPLATE)) { | |
1787 | _cleanup_free_ char *inst = NULL; | |
1788 | ||
73ce91a0 ZJS |
1789 | UnitNameFlags type = unit_name_to_instance(i->name, &inst); |
1790 | if (type < 0) | |
1791 | return log_error_errno(type, "Failed to extract instance name from %s: %m", i->name); | |
3f57bc22 | 1792 | |
73ce91a0 | 1793 | if (type == UNIT_NAME_INSTANCE) { |
3f57bc22 ZJS |
1794 | r = unit_name_replace_instance(dst, inst, &dst_updated); |
1795 | if (r < 0) | |
1796 | return log_error_errno(r, "Failed to build unit name from %s+%s: %m", | |
1797 | dst, inst); | |
1798 | } | |
1799 | } | |
aa0f357f | 1800 | |
3f57bc22 | 1801 | r = unit_validate_alias_symlink_and_warn(dst_updated ?: dst, i->name); |
aa0f357f ZJS |
1802 | if (r < 0) |
1803 | return r; | |
3f57bc22 | 1804 | |
aa0f357f ZJS |
1805 | } |
1806 | ||
3f57bc22 | 1807 | *ret_dst = TAKE_PTR(dst_updated); |
aa0f357f ZJS |
1808 | return 0; |
1809 | } | |
1810 | ||
83096483 | 1811 | static int install_info_symlink_alias( |
cab6235f | 1812 | UnitFileInstallInfo *i, |
401017e0 | 1813 | const LookupPaths *paths, |
83096483 LP |
1814 | const char *config_path, |
1815 | bool force, | |
1816 | UnitFileChange **changes, | |
da6053d0 | 1817 | size_t *n_changes) { |
83096483 LP |
1818 | |
1819 | char **s; | |
1820 | int r = 0, q; | |
1821 | ||
1822 | assert(i); | |
401017e0 | 1823 | assert(paths); |
83096483 LP |
1824 | assert(config_path); |
1825 | ||
1826 | STRV_FOREACH(s, i->aliases) { | |
3f57bc22 | 1827 | _cleanup_free_ char *alias_path = NULL, *dst = NULL, *dst_updated = NULL; |
83096483 | 1828 | |
06536492 | 1829 | q = install_path_printf(i, *s, &dst); |
19f6d710 LP |
1830 | if (q < 0) |
1831 | return q; | |
83096483 | 1832 | |
3f57bc22 | 1833 | q = unit_file_verify_alias(i, dst, &dst_updated); |
aa0f357f ZJS |
1834 | if (q < 0) |
1835 | continue; | |
3d0205f2 | 1836 | |
3f57bc22 | 1837 | alias_path = path_make_absolute(dst_updated ?: dst, config_path); |
83096483 LP |
1838 | if (!alias_path) |
1839 | return -ENOMEM; | |
1840 | ||
60bec8e4 | 1841 | q = create_symlink(paths, i->path, alias_path, force, changes, n_changes); |
83096483 LP |
1842 | if (r == 0) |
1843 | r = q; | |
1844 | } | |
1845 | ||
1846 | return r; | |
1847 | } | |
1848 | ||
1849 | static int install_info_symlink_wants( | |
8ae27441 | 1850 | UnitFileScope scope, |
cab6235f | 1851 | UnitFileInstallInfo *i, |
401017e0 | 1852 | const LookupPaths *paths, |
83096483 | 1853 | const char *config_path, |
d54c4993 LP |
1854 | char **list, |
1855 | const char *suffix, | |
83096483 | 1856 | UnitFileChange **changes, |
da6053d0 | 1857 | size_t *n_changes) { |
83096483 | 1858 | |
d54c4993 | 1859 | _cleanup_free_ char *buf = NULL; |
b0ec372a | 1860 | UnitNameFlags valid_dst_type = UNIT_NAME_ANY; |
d54c4993 | 1861 | const char *n; |
83096483 LP |
1862 | char **s; |
1863 | int r = 0, q; | |
1864 | ||
1865 | assert(i); | |
401017e0 | 1866 | assert(paths); |
83096483 LP |
1867 | assert(config_path); |
1868 | ||
047d91f9 ZJS |
1869 | if (strv_isempty(list)) |
1870 | return 0; | |
1871 | ||
b0ec372a ZJS |
1872 | if (unit_name_is_valid(i->name, UNIT_NAME_PLAIN | UNIT_NAME_INSTANCE)) |
1873 | /* Not a template unit. Use the name directly. */ | |
1874 | n = i->name; | |
1875 | ||
1876 | else if (i->default_instance) { | |
047d91f9 ZJS |
1877 | UnitFileInstallInfo instance = { |
1878 | .type = _UNIT_FILE_TYPE_INVALID, | |
1879 | }; | |
1880 | _cleanup_free_ char *path = NULL; | |
0a327d75 | 1881 | |
b0ec372a | 1882 | /* If this is a template, and we have a default instance, use it. */ |
e4086ae0 | 1883 | |
7410616c LP |
1884 | r = unit_name_replace_instance(i->name, i->default_instance, &buf); |
1885 | if (r < 0) | |
1886 | return r; | |
83096483 | 1887 | |
047d91f9 ZJS |
1888 | instance.name = buf; |
1889 | r = unit_file_search(NULL, &instance, paths, SEARCH_FOLLOW_CONFIG_SYMLINKS); | |
1890 | if (r < 0) | |
1891 | return r; | |
1892 | ||
ae2a15bc | 1893 | path = TAKE_PTR(instance.path); |
047d91f9 ZJS |
1894 | |
1895 | if (instance.type == UNIT_FILE_TYPE_MASKED) { | |
1896 | unit_file_changes_add(changes, n_changes, -ERFKILL, path, NULL); | |
1897 | return -ERFKILL; | |
1898 | } | |
1899 | ||
d54c4993 | 1900 | n = buf; |
b0ec372a ZJS |
1901 | |
1902 | } else { | |
1903 | /* We have a template, but no instance yet. When used with an instantiated unit, we will get | |
1904 | * the instance from that unit. Cannot be used with non-instance units. */ | |
1905 | ||
1906 | valid_dst_type = UNIT_NAME_INSTANCE | UNIT_NAME_TEMPLATE; | |
d54c4993 | 1907 | n = i->name; |
b0ec372a | 1908 | } |
78d54bd4 | 1909 | |
d54c4993 | 1910 | STRV_FOREACH(s, list) { |
7fd1b19b | 1911 | _cleanup_free_ char *path = NULL, *dst = NULL; |
78d54bd4 | 1912 | |
06536492 | 1913 | q = install_name_printf(i, *s, &dst); |
19f6d710 LP |
1914 | if (q < 0) |
1915 | return q; | |
7584d236 | 1916 | |
b0ec372a ZJS |
1917 | if (!unit_name_is_valid(dst, valid_dst_type)) { |
1918 | /* Generate a proper error here: EUCLEAN if the name is generally bad, | |
1919 | * EIDRM if the template status doesn't match. */ | |
1920 | if (unit_name_is_valid(dst, UNIT_NAME_ANY)) { | |
1921 | unit_file_changes_add(changes, n_changes, -EIDRM, dst, n); | |
1922 | r = -EIDRM; | |
1923 | } else { | |
1924 | unit_file_changes_add(changes, n_changes, -EUCLEAN, dst, NULL); | |
1925 | r = -EUCLEAN; | |
1926 | } | |
1927 | ||
78d54bd4 LP |
1928 | continue; |
1929 | } | |
1930 | ||
605405c6 | 1931 | path = strjoin(config_path, "/", dst, suffix, n); |
d54c4993 | 1932 | if (!path) |
78d54bd4 LP |
1933 | return -ENOMEM; |
1934 | ||
60bec8e4 | 1935 | q = create_symlink(paths, i->path, path, true, changes, n_changes); |
78d54bd4 LP |
1936 | if (r == 0) |
1937 | r = q; | |
8ae27441 JS |
1938 | |
1939 | if (unit_file_exists(scope, paths, dst) == 0) | |
1940 | unit_file_changes_add(changes, n_changes, UNIT_FILE_DESTINATION_NOT_PRESENT, dst, i->path); | |
78d54bd4 LP |
1941 | } |
1942 | ||
1943 | return r; | |
1944 | } | |
1945 | ||
83096483 | 1946 | static int install_info_symlink_link( |
cab6235f | 1947 | UnitFileInstallInfo *i, |
a8ffe6fb | 1948 | const LookupPaths *paths, |
83096483 LP |
1949 | const char *config_path, |
1950 | bool force, | |
1951 | UnitFileChange **changes, | |
da6053d0 | 1952 | size_t *n_changes) { |
83096483 | 1953 | |
7fd1b19b | 1954 | _cleanup_free_ char *path = NULL; |
1dacfd2a | 1955 | int r; |
83096483 LP |
1956 | |
1957 | assert(i); | |
1958 | assert(paths); | |
1959 | assert(config_path); | |
1960 | assert(i->path); | |
1961 | ||
32c0ed7b | 1962 | r = in_search_path(paths, i->path); |
fe4aede9 | 1963 | if (r < 0) |
83096483 | 1964 | return r; |
fe4aede9 ZJS |
1965 | if (r > 0) |
1966 | return 0; | |
83096483 | 1967 | |
657ee2d8 | 1968 | path = path_join(config_path, i->name); |
1dacfd2a | 1969 | if (!path) |
83096483 LP |
1970 | return -ENOMEM; |
1971 | ||
60bec8e4 | 1972 | return create_symlink(paths, i->path, path, force, changes, n_changes); |
83096483 LP |
1973 | } |
1974 | ||
1975 | static int install_info_apply( | |
8ae27441 | 1976 | UnitFileScope scope, |
cab6235f | 1977 | UnitFileInstallInfo *i, |
a8ffe6fb | 1978 | const LookupPaths *paths, |
83096483 LP |
1979 | const char *config_path, |
1980 | bool force, | |
1981 | UnitFileChange **changes, | |
da6053d0 | 1982 | size_t *n_changes) { |
83096483 LP |
1983 | |
1984 | int r, q; | |
1985 | ||
1986 | assert(i); | |
1987 | assert(paths); | |
1988 | assert(config_path); | |
1989 | ||
0ec0deaa LP |
1990 | if (i->type != UNIT_FILE_TYPE_REGULAR) |
1991 | return 0; | |
1992 | ||
401017e0 | 1993 | r = install_info_symlink_alias(i, paths, config_path, force, changes, n_changes); |
83096483 | 1994 | |
8ae27441 | 1995 | q = install_info_symlink_wants(scope, i, paths, config_path, i->wanted_by, ".wants/", changes, n_changes); |
83096483 LP |
1996 | if (r == 0) |
1997 | r = q; | |
1998 | ||
8ae27441 | 1999 | q = install_info_symlink_wants(scope, i, paths, config_path, i->required_by, ".requires/", changes, n_changes); |
78d54bd4 LP |
2000 | if (r == 0) |
2001 | r = q; | |
2002 | ||
e4bb56c7 | 2003 | q = install_info_symlink_link(i, paths, config_path, force, changes, n_changes); |
fe4aede9 ZJS |
2004 | /* Do not count links to the unit file towards the "carries_install_info" count */ |
2005 | if (r == 0 && q < 0) | |
83096483 LP |
2006 | r = q; |
2007 | ||
2008 | return r; | |
2009 | } | |
2010 | ||
2011 | static int install_context_apply( | |
0ec0deaa | 2012 | UnitFileScope scope, |
83096483 | 2013 | InstallContext *c, |
a8ffe6fb | 2014 | const LookupPaths *paths, |
83096483 | 2015 | const char *config_path, |
83096483 | 2016 | bool force, |
0ec0deaa | 2017 | SearchFlags flags, |
83096483 | 2018 | UnitFileChange **changes, |
da6053d0 | 2019 | size_t *n_changes) { |
83096483 | 2020 | |
cab6235f | 2021 | UnitFileInstallInfo *i; |
0ec0deaa | 2022 | int r; |
83096483 LP |
2023 | |
2024 | assert(c); | |
2025 | assert(paths); | |
2026 | assert(config_path); | |
2027 | ||
0ec0deaa | 2028 | if (ordered_hashmap_isempty(c->will_process)) |
d25e100b | 2029 | return 0; |
83096483 | 2030 | |
0ec0deaa | 2031 | r = ordered_hashmap_ensure_allocated(&c->have_processed, &string_hash_ops); |
d25e100b LP |
2032 | if (r < 0) |
2033 | return r; | |
83096483 | 2034 | |
2d5c93c7 | 2035 | r = 0; |
0ec0deaa LP |
2036 | while ((i = ordered_hashmap_first(c->will_process))) { |
2037 | int q; | |
83096483 | 2038 | |
0ec0deaa LP |
2039 | q = ordered_hashmap_move_one(c->have_processed, c->will_process, i->name); |
2040 | if (q < 0) | |
2041 | return q; | |
83096483 | 2042 | |
459500a3 ZJS |
2043 | q = install_info_traverse(scope, c, paths, i, flags, NULL); |
2044 | if (q < 0) { | |
3aa96361 ZJS |
2045 | if (i->auxiliary) { |
2046 | q = unit_file_changes_add(changes, n_changes, UNIT_FILE_AUXILIARY_FAILED, NULL, i->name); | |
2047 | if (q < 0) | |
2048 | return q; | |
2049 | continue; | |
2050 | } | |
2051 | ||
56a4ce24 | 2052 | unit_file_changes_add(changes, n_changes, q, i->name, NULL); |
459500a3 | 2053 | return q; |
db093eed | 2054 | } |
0ec0deaa | 2055 | |
f1651715 | 2056 | /* We can attempt to process a masked unit when a different unit |
047d91f9 | 2057 | * that we were processing specifies it in Also=. */ |
f1651715 ZJS |
2058 | if (i->type == UNIT_FILE_TYPE_MASKED) { |
2059 | unit_file_changes_add(changes, n_changes, UNIT_FILE_IS_MASKED, i->path, NULL); | |
2060 | if (r >= 0) | |
047d91f9 ZJS |
2061 | /* Assume that something *could* have been enabled here, |
2062 | * avoid "empty [Install] section" warning. */ | |
f1651715 ZJS |
2063 | r += 1; |
2064 | continue; | |
2065 | } | |
2066 | ||
0ec0deaa LP |
2067 | if (i->type != UNIT_FILE_TYPE_REGULAR) |
2068 | continue; | |
83096483 | 2069 | |
8ae27441 | 2070 | q = install_info_apply(scope, i, paths, config_path, force, changes, n_changes); |
0ec0deaa LP |
2071 | if (r >= 0) { |
2072 | if (q < 0) | |
2073 | r = q; | |
2074 | else | |
596fc263 | 2075 | r += q; |
0ec0deaa | 2076 | } |
83096483 LP |
2077 | } |
2078 | ||
2079 | return r; | |
2080 | } | |
2081 | ||
2082 | static int install_context_mark_for_removal( | |
0ec0deaa | 2083 | UnitFileScope scope, |
83096483 | 2084 | InstallContext *c, |
a8ffe6fb | 2085 | const LookupPaths *paths, |
83096483 | 2086 | Set **remove_symlinks_to, |
1830ac51 | 2087 | const char *config_path, |
637d6e5b | 2088 | UnitFileChange **changes, |
da6053d0 | 2089 | size_t *n_changes) { |
83096483 | 2090 | |
cab6235f | 2091 | UnitFileInstallInfo *i; |
0ec0deaa | 2092 | int r; |
83096483 LP |
2093 | |
2094 | assert(c); | |
2095 | assert(paths); | |
1830ac51 | 2096 | assert(config_path); |
83096483 LP |
2097 | |
2098 | /* Marks all items for removal */ | |
2099 | ||
0ec0deaa | 2100 | if (ordered_hashmap_isempty(c->will_process)) |
d25e100b | 2101 | return 0; |
83096483 | 2102 | |
0ec0deaa | 2103 | r = ordered_hashmap_ensure_allocated(&c->have_processed, &string_hash_ops); |
d25e100b LP |
2104 | if (r < 0) |
2105 | return r; | |
83096483 | 2106 | |
0ec0deaa | 2107 | while ((i = ordered_hashmap_first(c->will_process))) { |
83096483 | 2108 | |
0ec0deaa LP |
2109 | r = ordered_hashmap_move_one(c->have_processed, c->will_process, i->name); |
2110 | if (r < 0) | |
83096483 | 2111 | return r; |
29283ea4 | 2112 | |
e4bb56c7 | 2113 | r = install_info_traverse(scope, c, paths, i, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS, NULL); |
19539807 | 2114 | if (r == -ENOLINK) { |
637d6e5b LP |
2115 | log_debug_errno(r, "Name %s leads to a dangling symlink, removing name.", i->name); |
2116 | unit_file_changes_add(changes, n_changes, UNIT_FILE_IS_DANGLING, i->path ?: i->name, NULL); | |
2117 | } else if (r == -ENOENT) { | |
2118 | ||
2119 | if (i->auxiliary) /* some unit specified in Also= or similar is missing */ | |
2120 | log_debug_errno(r, "Auxiliary unit of %s not found, removing name.", i->name); | |
2121 | else { | |
2122 | log_debug_errno(r, "Unit %s not found, removing name.", i->name); | |
2123 | unit_file_changes_add(changes, n_changes, r, i->path ?: i->name, NULL); | |
2124 | } | |
0ec0deaa | 2125 | |
637d6e5b LP |
2126 | } else if (r < 0) { |
2127 | log_debug_errno(r, "Failed to find unit %s, removing name: %m", i->name); | |
2128 | unit_file_changes_add(changes, n_changes, r, i->path ?: i->name, NULL); | |
2129 | } else if (i->type == UNIT_FILE_TYPE_MASKED) { | |
2130 | log_debug("Unit file %s is masked, ignoring.", i->name); | |
2131 | unit_file_changes_add(changes, n_changes, UNIT_FILE_IS_MASKED, i->path ?: i->name, NULL); | |
2132 | continue; | |
2133 | } else if (i->type != UNIT_FILE_TYPE_REGULAR) { | |
2134 | log_debug("Unit %s has type %s, ignoring.", i->name, unit_file_type_to_string(i->type) ?: "invalid"); | |
0ec0deaa | 2135 | continue; |
64f9280e | 2136 | } |
0ec0deaa LP |
2137 | |
2138 | r = mark_symlink_for_removal(remove_symlinks_to, i->name); | |
2139 | if (r < 0) | |
2140 | return r; | |
2141 | } | |
2142 | ||
2143 | return 0; | |
2144 | } | |
2145 | ||
2146 | int unit_file_mask( | |
2147 | UnitFileScope scope, | |
b3796dd8 | 2148 | UnitFileFlags flags, |
0ec0deaa LP |
2149 | const char *root_dir, |
2150 | char **files, | |
0ec0deaa | 2151 | UnitFileChange **changes, |
da6053d0 | 2152 | size_t *n_changes) { |
0ec0deaa | 2153 | |
8e766630 | 2154 | _cleanup_(lookup_paths_free) LookupPaths paths = {}; |
e1c5c2b0 | 2155 | const char *config_path; |
0ec0deaa LP |
2156 | char **i; |
2157 | int r; | |
2158 | ||
2159 | assert(scope >= 0); | |
2160 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
2161 | ||
4943d143 | 2162 | r = lookup_paths_init(&paths, scope, 0, root_dir); |
0ec0deaa LP |
2163 | if (r < 0) |
2164 | return r; | |
2165 | ||
b3796dd8 | 2166 | config_path = (flags & UNIT_FILE_RUNTIME) ? paths.runtime_config : paths.persistent_config; |
d0fd66a3 LP |
2167 | if (!config_path) |
2168 | return -ENXIO; | |
e1c5c2b0 | 2169 | |
0ec0deaa LP |
2170 | STRV_FOREACH(i, files) { |
2171 | _cleanup_free_ char *path = NULL; | |
2172 | int q; | |
2173 | ||
2174 | if (!unit_name_is_valid(*i, UNIT_NAME_ANY)) { | |
2175 | if (r == 0) | |
2176 | r = -EINVAL; | |
2177 | continue; | |
2178 | } | |
2179 | ||
e1c5c2b0 | 2180 | path = path_make_absolute(*i, config_path); |
0ec0deaa LP |
2181 | if (!path) |
2182 | return -ENOMEM; | |
29283ea4 | 2183 | |
b3796dd8 | 2184 | q = create_symlink(&paths, "/dev/null", path, !!(flags & UNIT_FILE_FORCE), changes, n_changes); |
0ec0deaa | 2185 | if (q < 0 && r >= 0) |
83096483 LP |
2186 | r = q; |
2187 | } | |
2188 | ||
2189 | return r; | |
2190 | } | |
2191 | ||
0ec0deaa LP |
2192 | int unit_file_unmask( |
2193 | UnitFileScope scope, | |
b3796dd8 | 2194 | UnitFileFlags flags, |
0ec0deaa LP |
2195 | const char *root_dir, |
2196 | char **files, | |
2197 | UnitFileChange **changes, | |
da6053d0 | 2198 | size_t *n_changes) { |
0ec0deaa | 2199 | |
8e766630 | 2200 | _cleanup_(lookup_paths_free) LookupPaths paths = {}; |
0ec0deaa | 2201 | _cleanup_set_free_free_ Set *remove_symlinks_to = NULL; |
dc7dd61d | 2202 | _cleanup_strv_free_ char **todo = NULL; |
e1c5c2b0 | 2203 | const char *config_path; |
319a4f4b | 2204 | size_t n_todo = 0; |
1830ac51 | 2205 | bool dry_run; |
319a4f4b | 2206 | char **i; |
0ec0deaa LP |
2207 | int r, q; |
2208 | ||
2209 | assert(scope >= 0); | |
2210 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
2211 | ||
4943d143 | 2212 | r = lookup_paths_init(&paths, scope, 0, root_dir); |
0ec0deaa LP |
2213 | if (r < 0) |
2214 | return r; | |
2215 | ||
1830ac51 MB |
2216 | config_path = (flags & UNIT_FILE_RUNTIME) ? paths.runtime_config : paths.persistent_config; |
2217 | if (!config_path) | |
2218 | return -ENXIO; | |
2219 | ||
2220 | dry_run = !!(flags & UNIT_FILE_DRY_RUN); | |
2221 | ||
0ec0deaa | 2222 | STRV_FOREACH(i, files) { |
1830ac51 MB |
2223 | _cleanup_free_ char *path = NULL; |
2224 | ||
0ec0deaa LP |
2225 | if (!unit_name_is_valid(*i, UNIT_NAME_ANY)) |
2226 | return -EINVAL; | |
2227 | ||
1830ac51 MB |
2228 | path = path_make_absolute(*i, config_path); |
2229 | if (!path) | |
2230 | return -ENOMEM; | |
0ec0deaa | 2231 | |
1830ac51 MB |
2232 | r = null_or_empty_path(path); |
2233 | if (r == -ENOENT) | |
2234 | continue; | |
2235 | if (r < 0) | |
2236 | return r; | |
2237 | if (r == 0) | |
2238 | continue; | |
0ec0deaa | 2239 | |
319a4f4b | 2240 | if (!GREEDY_REALLOC0(todo, n_todo + 2)) |
1830ac51 | 2241 | return -ENOMEM; |
d054eae6 | 2242 | |
1830ac51 MB |
2243 | todo[n_todo] = strdup(*i); |
2244 | if (!todo[n_todo]) | |
2245 | return -ENOMEM; | |
4910b350 | 2246 | |
1830ac51 | 2247 | n_todo++; |
0ec0deaa LP |
2248 | } |
2249 | ||
2250 | strv_uniq(todo); | |
2251 | ||
2252 | r = 0; | |
1830ac51 MB |
2253 | STRV_FOREACH(i, todo) { |
2254 | _cleanup_free_ char *path = NULL; | |
2255 | const char *rp; | |
0ec0deaa | 2256 | |
1830ac51 MB |
2257 | path = path_make_absolute(*i, config_path); |
2258 | if (!path) | |
2259 | return -ENOMEM; | |
4910b350 | 2260 | |
1830ac51 MB |
2261 | if (!dry_run && unlink(path) < 0) { |
2262 | if (errno != ENOENT) { | |
2263 | if (r >= 0) | |
2264 | r = -errno; | |
2265 | unit_file_changes_add(changes, n_changes, -errno, path, NULL); | |
af3d8113 | 2266 | } |
0ec0deaa | 2267 | |
1830ac51 | 2268 | continue; |
4910b350 | 2269 | } |
401017e0 | 2270 | |
1830ac51 MB |
2271 | unit_file_changes_add(changes, n_changes, UNIT_FILE_UNLINK, path, NULL); |
2272 | ||
2273 | rp = skip_root(&paths, path); | |
2274 | q = mark_symlink_for_removal(&remove_symlinks_to, rp ?: path); | |
2275 | if (q < 0) | |
2276 | return q; | |
0ec0deaa LP |
2277 | } |
2278 | ||
1830ac51 MB |
2279 | q = remove_marked_symlinks(remove_symlinks_to, config_path, &paths, dry_run, changes, n_changes); |
2280 | if (r >= 0) | |
2281 | r = q; | |
2282 | ||
0ec0deaa LP |
2283 | return r; |
2284 | } | |
2285 | ||
2286 | int unit_file_link( | |
e94937df | 2287 | UnitFileScope scope, |
b3796dd8 | 2288 | UnitFileFlags flags, |
e94937df LN |
2289 | const char *root_dir, |
2290 | char **files, | |
e94937df | 2291 | UnitFileChange **changes, |
da6053d0 | 2292 | size_t *n_changes) { |
e94937df | 2293 | |
8e766630 | 2294 | _cleanup_(lookup_paths_free) LookupPaths paths = {}; |
8af35ba6 | 2295 | _cleanup_strv_free_ char **todo = NULL; |
e1c5c2b0 | 2296 | const char *config_path; |
319a4f4b | 2297 | size_t n_todo = 0; |
e94937df | 2298 | char **i; |
0ec0deaa | 2299 | int r, q; |
e94937df LN |
2300 | |
2301 | assert(scope >= 0); | |
2302 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
2303 | ||
4943d143 | 2304 | r = lookup_paths_init(&paths, scope, 0, root_dir); |
e94937df LN |
2305 | if (r < 0) |
2306 | return r; | |
2307 | ||
b3796dd8 | 2308 | config_path = (flags & UNIT_FILE_RUNTIME) ? paths.runtime_config : paths.persistent_config; |
d0fd66a3 LP |
2309 | if (!config_path) |
2310 | return -ENXIO; | |
e94937df LN |
2311 | |
2312 | STRV_FOREACH(i, files) { | |
0ec0deaa LP |
2313 | _cleanup_free_ char *full = NULL; |
2314 | struct stat st; | |
2315 | char *fn; | |
e94937df | 2316 | |
0ec0deaa LP |
2317 | if (!path_is_absolute(*i)) |
2318 | return -EINVAL; | |
e94937df | 2319 | |
0ec0deaa LP |
2320 | fn = basename(*i); |
2321 | if (!unit_name_is_valid(fn, UNIT_NAME_ANY)) | |
2322 | return -EINVAL; | |
2323 | ||
c6134d3e | 2324 | full = path_join(paths.root_dir, *i); |
0ec0deaa LP |
2325 | if (!full) |
2326 | return -ENOMEM; | |
2327 | ||
2328 | if (lstat(full, &st) < 0) | |
2329 | return -errno; | |
3cc44114 LP |
2330 | r = stat_verify_regular(&st); |
2331 | if (r < 0) | |
2332 | return r; | |
0ec0deaa | 2333 | |
32c0ed7b | 2334 | q = in_search_path(&paths, *i); |
0ec0deaa LP |
2335 | if (q < 0) |
2336 | return q; | |
2337 | if (q > 0) | |
2338 | continue; | |
2339 | ||
319a4f4b | 2340 | if (!GREEDY_REALLOC0(todo, n_todo + 2)) |
0ec0deaa LP |
2341 | return -ENOMEM; |
2342 | ||
8af35ba6 EV |
2343 | todo[n_todo] = strdup(*i); |
2344 | if (!todo[n_todo]) | |
2345 | return -ENOMEM; | |
2346 | ||
2347 | n_todo++; | |
e94937df LN |
2348 | } |
2349 | ||
0ec0deaa | 2350 | strv_uniq(todo); |
e94937df | 2351 | |
0ec0deaa LP |
2352 | r = 0; |
2353 | STRV_FOREACH(i, todo) { | |
401017e0 | 2354 | _cleanup_free_ char *new_path = NULL; |
0ec0deaa | 2355 | |
401017e0 LP |
2356 | new_path = path_make_absolute(basename(*i), config_path); |
2357 | if (!new_path) | |
0ec0deaa LP |
2358 | return -ENOMEM; |
2359 | ||
b3796dd8 | 2360 | q = create_symlink(&paths, *i, new_path, !!(flags & UNIT_FILE_FORCE), changes, n_changes); |
0ec0deaa LP |
2361 | if (q < 0 && r >= 0) |
2362 | r = q; | |
2d5c93c7 MS |
2363 | } |
2364 | ||
0ec0deaa LP |
2365 | return r; |
2366 | } | |
2367 | ||
344ca755 LP |
2368 | static int path_shall_revert(const LookupPaths *paths, const char *path) { |
2369 | int r; | |
2370 | ||
2371 | assert(paths); | |
2372 | assert(path); | |
2373 | ||
2374 | /* Checks whether the path is one where the drop-in directories shall be removed. */ | |
2375 | ||
dfead90d | 2376 | r = path_is_config(paths, path, true); |
344ca755 LP |
2377 | if (r != 0) |
2378 | return r; | |
2379 | ||
2380 | r = path_is_control(paths, path); | |
2381 | if (r != 0) | |
2382 | return r; | |
2383 | ||
2384 | return path_is_transient(paths, path); | |
2385 | } | |
2386 | ||
2387 | int unit_file_revert( | |
2388 | UnitFileScope scope, | |
2389 | const char *root_dir, | |
2390 | char **files, | |
2391 | UnitFileChange **changes, | |
da6053d0 | 2392 | size_t *n_changes) { |
344ca755 LP |
2393 | |
2394 | _cleanup_set_free_free_ Set *remove_symlinks_to = NULL; | |
8e766630 | 2395 | _cleanup_(lookup_paths_free) LookupPaths paths = {}; |
344ca755 | 2396 | _cleanup_strv_free_ char **todo = NULL; |
319a4f4b | 2397 | size_t n_todo = 0; |
344ca755 LP |
2398 | char **i; |
2399 | int r, q; | |
2400 | ||
2401 | /* Puts a unit file back into vendor state. This means: | |
2402 | * | |
2403 | * a) we remove all drop-in snippets added by the user ("config"), add to transient units ("transient"), and | |
2404 | * added via "systemctl set-property" ("control"), but not if the drop-in is generated ("generated"). | |
2405 | * | |
2406 | * c) if there's a vendor unit file (i.e. one in /usr) we remove any configured overriding unit files (i.e. in | |
2407 | * "config", but not in "transient" or "control" or even "generated"). | |
2408 | * | |
4f25723c | 2409 | * We remove all that in both the runtime and the persistent directories, if that applies. |
344ca755 LP |
2410 | */ |
2411 | ||
2412 | r = lookup_paths_init(&paths, scope, 0, root_dir); | |
2413 | if (r < 0) | |
2414 | return r; | |
2415 | ||
2416 | STRV_FOREACH(i, files) { | |
2417 | bool has_vendor = false; | |
2418 | char **p; | |
2419 | ||
2420 | if (!unit_name_is_valid(*i, UNIT_NAME_ANY)) | |
2421 | return -EINVAL; | |
2422 | ||
2423 | STRV_FOREACH(p, paths.search_path) { | |
2424 | _cleanup_free_ char *path = NULL, *dropin = NULL; | |
2425 | struct stat st; | |
2426 | ||
2427 | path = path_make_absolute(*i, *p); | |
2428 | if (!path) | |
2429 | return -ENOMEM; | |
2430 | ||
2431 | r = lstat(path, &st); | |
2432 | if (r < 0) { | |
2433 | if (errno != ENOENT) | |
2434 | return -errno; | |
2435 | } else if (S_ISREG(st.st_mode)) { | |
2436 | /* Check if there's a vendor version */ | |
efdbf5fe | 2437 | r = path_is_vendor_or_generator(&paths, path); |
344ca755 LP |
2438 | if (r < 0) |
2439 | return r; | |
2440 | if (r > 0) | |
2441 | has_vendor = true; | |
2442 | } | |
2443 | ||
b910cc72 | 2444 | dropin = strjoin(path, ".d"); |
344ca755 LP |
2445 | if (!dropin) |
2446 | return -ENOMEM; | |
2447 | ||
2448 | r = lstat(dropin, &st); | |
2449 | if (r < 0) { | |
2450 | if (errno != ENOENT) | |
2451 | return -errno; | |
2452 | } else if (S_ISDIR(st.st_mode)) { | |
2453 | /* Remove the drop-ins */ | |
2454 | r = path_shall_revert(&paths, dropin); | |
2455 | if (r < 0) | |
2456 | return r; | |
2457 | if (r > 0) { | |
319a4f4b | 2458 | if (!GREEDY_REALLOC0(todo, n_todo + 2)) |
344ca755 LP |
2459 | return -ENOMEM; |
2460 | ||
1cc6c93a | 2461 | todo[n_todo++] = TAKE_PTR(dropin); |
344ca755 LP |
2462 | } |
2463 | } | |
2464 | } | |
2465 | ||
2466 | if (!has_vendor) | |
2467 | continue; | |
2468 | ||
2469 | /* OK, there's a vendor version, hence drop all configuration versions */ | |
2470 | STRV_FOREACH(p, paths.search_path) { | |
2471 | _cleanup_free_ char *path = NULL; | |
2472 | struct stat st; | |
2473 | ||
2474 | path = path_make_absolute(*i, *p); | |
2475 | if (!path) | |
2476 | return -ENOMEM; | |
2477 | ||
2478 | r = lstat(path, &st); | |
2479 | if (r < 0) { | |
2480 | if (errno != ENOENT) | |
2481 | return -errno; | |
2482 | } else if (S_ISREG(st.st_mode) || S_ISLNK(st.st_mode)) { | |
dfead90d | 2483 | r = path_is_config(&paths, path, true); |
344ca755 LP |
2484 | if (r < 0) |
2485 | return r; | |
2486 | if (r > 0) { | |
319a4f4b | 2487 | if (!GREEDY_REALLOC0(todo, n_todo + 2)) |
344ca755 LP |
2488 | return -ENOMEM; |
2489 | ||
1cc6c93a | 2490 | todo[n_todo++] = TAKE_PTR(path); |
344ca755 LP |
2491 | } |
2492 | } | |
2493 | } | |
2494 | } | |
2495 | ||
2496 | strv_uniq(todo); | |
2497 | ||
2498 | r = 0; | |
2499 | STRV_FOREACH(i, todo) { | |
2500 | _cleanup_strv_free_ char **fs = NULL; | |
2501 | const char *rp; | |
2502 | char **j; | |
2503 | ||
2504 | (void) get_files_in_directory(*i, &fs); | |
2505 | ||
2506 | q = rm_rf(*i, REMOVE_ROOT|REMOVE_PHYSICAL); | |
2507 | if (q < 0 && q != -ENOENT && r >= 0) { | |
2508 | r = q; | |
2509 | continue; | |
2510 | } | |
2511 | ||
2512 | STRV_FOREACH(j, fs) { | |
2513 | _cleanup_free_ char *t = NULL; | |
2514 | ||
657ee2d8 | 2515 | t = path_join(*i, *j); |
344ca755 LP |
2516 | if (!t) |
2517 | return -ENOMEM; | |
2518 | ||
2519 | unit_file_changes_add(changes, n_changes, UNIT_FILE_UNLINK, t, NULL); | |
2520 | } | |
2521 | ||
2522 | unit_file_changes_add(changes, n_changes, UNIT_FILE_UNLINK, *i, NULL); | |
2523 | ||
2524 | rp = skip_root(&paths, *i); | |
2525 | q = mark_symlink_for_removal(&remove_symlinks_to, rp ?: *i); | |
2526 | if (q < 0) | |
2527 | return q; | |
2528 | } | |
2529 | ||
3b3557c4 | 2530 | q = remove_marked_symlinks(remove_symlinks_to, paths.runtime_config, &paths, false, changes, n_changes); |
344ca755 LP |
2531 | if (r >= 0) |
2532 | r = q; | |
2533 | ||
3b3557c4 | 2534 | q = remove_marked_symlinks(remove_symlinks_to, paths.persistent_config, &paths, false, changes, n_changes); |
344ca755 LP |
2535 | if (r >= 0) |
2536 | r = q; | |
2537 | ||
2538 | return r; | |
2539 | } | |
2540 | ||
0ec0deaa LP |
2541 | int unit_file_add_dependency( |
2542 | UnitFileScope scope, | |
b3796dd8 | 2543 | UnitFileFlags flags, |
0ec0deaa LP |
2544 | const char *root_dir, |
2545 | char **files, | |
2546 | const char *target, | |
2547 | UnitDependency dep, | |
0ec0deaa | 2548 | UnitFileChange **changes, |
da6053d0 | 2549 | size_t *n_changes) { |
0ec0deaa | 2550 | |
8e766630 | 2551 | _cleanup_(lookup_paths_free) LookupPaths paths = {}; |
0ec0deaa | 2552 | _cleanup_(install_context_done) InstallContext c = {}; |
0ec0deaa | 2553 | UnitFileInstallInfo *i, *target_info; |
e1c5c2b0 | 2554 | const char *config_path; |
0ec0deaa LP |
2555 | char **f; |
2556 | int r; | |
2557 | ||
2558 | assert(scope >= 0); | |
2559 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
2560 | assert(target); | |
2561 | ||
2562 | if (!IN_SET(dep, UNIT_WANTS, UNIT_REQUIRES)) | |
2563 | return -EINVAL; | |
2564 | ||
2565 | if (!unit_name_is_valid(target, UNIT_NAME_ANY)) | |
2566 | return -EINVAL; | |
2567 | ||
4943d143 | 2568 | r = lookup_paths_init(&paths, scope, 0, root_dir); |
0ec0deaa LP |
2569 | if (r < 0) |
2570 | return r; | |
2571 | ||
b3796dd8 | 2572 | config_path = (flags & UNIT_FILE_RUNTIME) ? paths.runtime_config : paths.persistent_config; |
d0fd66a3 LP |
2573 | if (!config_path) |
2574 | return -ENXIO; | |
0ec0deaa | 2575 | |
1e475a0a RB |
2576 | r = install_info_discover_and_check(scope, &c, &paths, target, SEARCH_FOLLOW_CONFIG_SYMLINKS, |
2577 | &target_info, changes, n_changes); | |
76adb5b8 LP |
2578 | if (r < 0) |
2579 | return r; | |
0ec0deaa LP |
2580 | |
2581 | assert(target_info->type == UNIT_FILE_TYPE_REGULAR); | |
e94937df | 2582 | |
0ec0deaa LP |
2583 | STRV_FOREACH(f, files) { |
2584 | char ***l; | |
2585 | ||
1e475a0a RB |
2586 | r = install_info_discover_and_check(scope, &c, &paths, *f, SEARCH_FOLLOW_CONFIG_SYMLINKS, |
2587 | &i, changes, n_changes); | |
76adb5b8 LP |
2588 | if (r < 0) |
2589 | return r; | |
0ec0deaa LP |
2590 | |
2591 | assert(i->type == UNIT_FILE_TYPE_REGULAR); | |
2592 | ||
2593 | /* We didn't actually load anything from the unit | |
2594 | * file, but instead just add in our new symlink to | |
2595 | * create. */ | |
e94937df LN |
2596 | |
2597 | if (dep == UNIT_WANTS) | |
0ec0deaa | 2598 | l = &i->wanted_by; |
e94937df | 2599 | else |
0ec0deaa | 2600 | l = &i->required_by; |
e94937df | 2601 | |
0ec0deaa | 2602 | strv_free(*l); |
bea1a013 | 2603 | *l = strv_new(target_info->name); |
0ec0deaa LP |
2604 | if (!*l) |
2605 | return -ENOMEM; | |
e94937df LN |
2606 | } |
2607 | ||
b3796dd8 | 2608 | return install_context_apply(scope, &c, &paths, config_path, !!(flags & UNIT_FILE_FORCE), SEARCH_FOLLOW_CONFIG_SYMLINKS, changes, n_changes); |
e94937df LN |
2609 | } |
2610 | ||
83096483 LP |
2611 | int unit_file_enable( |
2612 | UnitFileScope scope, | |
b3796dd8 | 2613 | UnitFileFlags flags, |
83096483 | 2614 | const char *root_dir, |
7195aa42 | 2615 | char **files, |
83096483 | 2616 | UnitFileChange **changes, |
da6053d0 | 2617 | size_t *n_changes) { |
83096483 | 2618 | |
8e766630 | 2619 | _cleanup_(lookup_paths_free) LookupPaths paths = {}; |
59ccf93d | 2620 | _cleanup_(install_context_done) InstallContext c = {}; |
e1c5c2b0 | 2621 | const char *config_path; |
0ec0deaa LP |
2622 | UnitFileInstallInfo *i; |
2623 | char **f; | |
83096483 LP |
2624 | int r; |
2625 | ||
2626 | assert(scope >= 0); | |
2627 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
2628 | ||
4943d143 | 2629 | r = lookup_paths_init(&paths, scope, 0, root_dir); |
83096483 LP |
2630 | if (r < 0) |
2631 | return r; | |
2632 | ||
83654007 | 2633 | config_path = config_path_from_flags(&paths, flags); |
d0fd66a3 LP |
2634 | if (!config_path) |
2635 | return -ENXIO; | |
83096483 | 2636 | |
0ec0deaa | 2637 | STRV_FOREACH(f, files) { |
1e475a0a RB |
2638 | r = install_info_discover_and_check(scope, &c, &paths, *f, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS, |
2639 | &i, changes, n_changes); | |
76adb5b8 LP |
2640 | if (r < 0) |
2641 | return r; | |
0ec0deaa LP |
2642 | |
2643 | assert(i->type == UNIT_FILE_TYPE_REGULAR); | |
83096483 LP |
2644 | } |
2645 | ||
729e3769 | 2646 | /* This will return the number of symlink rules that were |
d25e100b LP |
2647 | supposed to be created, not the ones actually created. This |
2648 | is useful to determine whether the passed files had any | |
2649 | installation data at all. */ | |
b91a3b02 | 2650 | |
b3796dd8 | 2651 | return install_context_apply(scope, &c, &paths, config_path, !!(flags & UNIT_FILE_FORCE), SEARCH_LOAD, changes, n_changes); |
83096483 LP |
2652 | } |
2653 | ||
2654 | int unit_file_disable( | |
2655 | UnitFileScope scope, | |
b3796dd8 | 2656 | UnitFileFlags flags, |
83096483 | 2657 | const char *root_dir, |
7195aa42 | 2658 | char **files, |
83096483 | 2659 | UnitFileChange **changes, |
da6053d0 | 2660 | size_t *n_changes) { |
83096483 | 2661 | |
8e766630 | 2662 | _cleanup_(lookup_paths_free) LookupPaths paths = {}; |
59ccf93d | 2663 | _cleanup_(install_context_done) InstallContext c = {}; |
7fd1b19b | 2664 | _cleanup_set_free_free_ Set *remove_symlinks_to = NULL; |
e1c5c2b0 | 2665 | const char *config_path; |
0ec0deaa LP |
2666 | char **i; |
2667 | int r; | |
83096483 LP |
2668 | |
2669 | assert(scope >= 0); | |
2670 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
2671 | ||
4943d143 | 2672 | r = lookup_paths_init(&paths, scope, 0, root_dir); |
83096483 LP |
2673 | if (r < 0) |
2674 | return r; | |
2675 | ||
83654007 | 2676 | config_path = config_path_from_flags(&paths, flags); |
1830ac51 MB |
2677 | if (!config_path) |
2678 | return -ENXIO; | |
2679 | ||
83096483 | 2680 | STRV_FOREACH(i, files) { |
0ec0deaa LP |
2681 | if (!unit_name_is_valid(*i, UNIT_NAME_ANY)) |
2682 | return -EINVAL; | |
2683 | ||
19539807 | 2684 | r = install_info_add(&c, *i, NULL, false, NULL); |
83096483 | 2685 | if (r < 0) |
d9e5e694 | 2686 | return r; |
83096483 LP |
2687 | } |
2688 | ||
1830ac51 | 2689 | r = install_context_mark_for_removal(scope, &c, &paths, &remove_symlinks_to, config_path, changes, n_changes); |
0ec0deaa LP |
2690 | if (r < 0) |
2691 | return r; | |
83096483 | 2692 | |
1830ac51 | 2693 | return remove_marked_symlinks(remove_symlinks_to, config_path, &paths, !!(flags & UNIT_FILE_DRY_RUN), changes, n_changes); |
83096483 LP |
2694 | } |
2695 | ||
2696 | int unit_file_reenable( | |
2697 | UnitFileScope scope, | |
b3796dd8 | 2698 | UnitFileFlags flags, |
83096483 | 2699 | const char *root_dir, |
7195aa42 | 2700 | char **files, |
83096483 | 2701 | UnitFileChange **changes, |
da6053d0 | 2702 | size_t *n_changes) { |
0ec0deaa LP |
2703 | |
2704 | char **n; | |
92d430a9 | 2705 | int r; |
0ec0deaa | 2706 | size_t l, i; |
83096483 | 2707 | |
0ec0deaa LP |
2708 | /* First, we invoke the disable command with only the basename... */ |
2709 | l = strv_length(files); | |
2710 | n = newa(char*, l+1); | |
2711 | for (i = 0; i < l; i++) | |
2712 | n[i] = basename(files[i]); | |
2713 | n[i] = NULL; | |
2714 | ||
b3796dd8 | 2715 | r = unit_file_disable(scope, flags, root_dir, n, changes, n_changes); |
83096483 | 2716 | if (r < 0) |
d9e5e694 | 2717 | return r; |
83096483 | 2718 | |
0ec0deaa | 2719 | /* But the enable command with the full name */ |
b3796dd8 | 2720 | return unit_file_enable(scope, flags, root_dir, files, changes, n_changes); |
83096483 LP |
2721 | } |
2722 | ||
99504dd4 VP |
2723 | int unit_file_set_default( |
2724 | UnitFileScope scope, | |
b3796dd8 | 2725 | UnitFileFlags flags, |
99504dd4 | 2726 | const char *root_dir, |
0ec0deaa | 2727 | const char *name, |
99504dd4 | 2728 | UnitFileChange **changes, |
da6053d0 | 2729 | size_t *n_changes) { |
99504dd4 | 2730 | |
8e766630 | 2731 | _cleanup_(lookup_paths_free) LookupPaths paths = {}; |
59ccf93d | 2732 | _cleanup_(install_context_done) InstallContext c = {}; |
0ec0deaa | 2733 | UnitFileInstallInfo *i; |
60bec8e4 | 2734 | const char *new_path; |
99504dd4 | 2735 | int r; |
99504dd4 VP |
2736 | |
2737 | assert(scope >= 0); | |
2738 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
0ec0deaa | 2739 | assert(name); |
99504dd4 | 2740 | |
401017e0 | 2741 | if (unit_name_to_type(name) != UNIT_TARGET) /* this also validates the name */ |
0ec0deaa LP |
2742 | return -EINVAL; |
2743 | if (streq(name, SPECIAL_DEFAULT_TARGET)) | |
99504dd4 VP |
2744 | return -EINVAL; |
2745 | ||
4943d143 | 2746 | r = lookup_paths_init(&paths, scope, 0, root_dir); |
99504dd4 VP |
2747 | if (r < 0) |
2748 | return r; | |
2749 | ||
1e475a0a | 2750 | r = install_info_discover_and_check(scope, &c, &paths, name, 0, &i, changes, n_changes); |
76adb5b8 LP |
2751 | if (r < 0) |
2752 | return r; | |
99504dd4 | 2753 | |
401017e0 | 2754 | new_path = strjoina(paths.persistent_config, "/" SPECIAL_DEFAULT_TARGET); |
b3796dd8 | 2755 | return create_symlink(&paths, i->path, new_path, !!(flags & UNIT_FILE_FORCE), changes, n_changes); |
99504dd4 VP |
2756 | } |
2757 | ||
2758 | int unit_file_get_default( | |
2759 | UnitFileScope scope, | |
2760 | const char *root_dir, | |
2761 | char **name) { | |
2762 | ||
8e766630 | 2763 | _cleanup_(lookup_paths_free) LookupPaths paths = {}; |
0ec0deaa LP |
2764 | _cleanup_(install_context_done) InstallContext c = {}; |
2765 | UnitFileInstallInfo *i; | |
2766 | char *n; | |
99504dd4 VP |
2767 | int r; |
2768 | ||
16ed0233 LP |
2769 | assert(scope >= 0); |
2770 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
2771 | assert(name); | |
2772 | ||
4943d143 | 2773 | r = lookup_paths_init(&paths, scope, 0, root_dir); |
0ec0deaa LP |
2774 | if (r < 0) |
2775 | return r; | |
99504dd4 | 2776 | |
59108fbe ZJS |
2777 | r = install_info_discover(scope, &c, &paths, SPECIAL_DEFAULT_TARGET, SEARCH_FOLLOW_CONFIG_SYMLINKS, |
2778 | &i, NULL, NULL); | |
0ec0deaa LP |
2779 | if (r < 0) |
2780 | return r; | |
af3d8113 | 2781 | r = install_info_may_process(i, &paths, NULL, 0); |
76adb5b8 LP |
2782 | if (r < 0) |
2783 | return r; | |
99504dd4 | 2784 | |
0ec0deaa LP |
2785 | n = strdup(i->name); |
2786 | if (!n) | |
2787 | return -ENOMEM; | |
99504dd4 | 2788 | |
0ec0deaa LP |
2789 | *name = n; |
2790 | return 0; | |
99504dd4 VP |
2791 | } |
2792 | ||
d6d98276 | 2793 | int unit_file_lookup_state( |
83096483 | 2794 | UnitFileScope scope, |
a8ffe6fb | 2795 | const LookupPaths *paths, |
0ec0deaa LP |
2796 | const char *name, |
2797 | UnitFileState *ret) { | |
83096483 | 2798 | |
0ec0deaa LP |
2799 | _cleanup_(install_context_done) InstallContext c = {}; |
2800 | UnitFileInstallInfo *i; | |
2801 | UnitFileState state; | |
2802 | int r; | |
83096483 | 2803 | |
a8ffe6fb | 2804 | assert(paths); |
0ec0deaa | 2805 | assert(name); |
83096483 | 2806 | |
7410616c | 2807 | if (!unit_name_is_valid(name, UNIT_NAME_ANY)) |
83096483 LP |
2808 | return -EINVAL; |
2809 | ||
59108fbe ZJS |
2810 | r = install_info_discover(scope, &c, paths, name, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS, |
2811 | &i, NULL, NULL); | |
0ec0deaa | 2812 | if (r < 0) |
3e8d06d9 ZJS |
2813 | return log_debug_errno(r, "Failed to discover unit %s: %m", name); |
2814 | ||
2815 | assert(IN_SET(i->type, UNIT_FILE_TYPE_REGULAR, UNIT_FILE_TYPE_MASKED)); | |
2816 | log_debug("Found unit %s at %s (%s)", name, strna(i->path), | |
2817 | i->type == UNIT_FILE_TYPE_REGULAR ? "regular file" : "mask"); | |
83096483 | 2818 | |
0ec0deaa LP |
2819 | /* Shortcut things, if the caller just wants to know if this unit exists. */ |
2820 | if (!ret) | |
2821 | return 0; | |
83096483 | 2822 | |
0ec0deaa | 2823 | switch (i->type) { |
67820a0c | 2824 | |
0ec0deaa | 2825 | case UNIT_FILE_TYPE_MASKED: |
dfead90d | 2826 | r = path_is_runtime(paths, i->path, true); |
385eb996 LP |
2827 | if (r < 0) |
2828 | return r; | |
2829 | ||
2830 | state = r > 0 ? UNIT_FILE_MASKED_RUNTIME : UNIT_FILE_MASKED; | |
0ec0deaa | 2831 | break; |
83096483 | 2832 | |
0ec0deaa | 2833 | case UNIT_FILE_TYPE_REGULAR: |
15d7ab87 ZJS |
2834 | /* Check if the name we were querying is actually an alias */ |
2835 | if (!streq(name, basename(i->path)) && !unit_name_is_valid(i->name, UNIT_NAME_INSTANCE)) { | |
2836 | state = UNIT_FILE_ALIAS; | |
2837 | break; | |
2838 | } | |
2839 | ||
f4dc1e65 | 2840 | r = path_is_generator(paths, i->path); |
f4139308 LP |
2841 | if (r < 0) |
2842 | return r; | |
2843 | if (r > 0) { | |
2844 | state = UNIT_FILE_GENERATED; | |
2845 | break; | |
2846 | } | |
2847 | ||
e4fca67f LP |
2848 | r = path_is_transient(paths, i->path); |
2849 | if (r < 0) | |
2850 | return r; | |
2851 | if (r > 0) { | |
2852 | state = UNIT_FILE_TRANSIENT; | |
2853 | break; | |
2854 | } | |
2855 | ||
5cd8ae31 ZJS |
2856 | /* Check if any of the Alias= symlinks have been created. |
2857 | * We ignore other aliases, and only check those that would | |
2858 | * be created by systemctl enable for this unit. */ | |
d2561cfd | 2859 | r = find_symlinks_in_scope(scope, paths, i, true, &state); |
d9b4b48f ZJS |
2860 | if (r < 0) |
2861 | return r; | |
2862 | if (r > 0) | |
2863 | break; | |
2864 | ||
2865 | /* Check if the file is known under other names. If it is, | |
2866 | * it might be in use. Report that as UNIT_FILE_INDIRECT. */ | |
d2561cfd | 2867 | r = find_symlinks_in_scope(scope, paths, i, false, &state); |
d9e5e694 ZJS |
2868 | if (r < 0) |
2869 | return r; | |
d9b4b48f ZJS |
2870 | if (r > 0) |
2871 | state = UNIT_FILE_INDIRECT; | |
2872 | else { | |
7a7ec2bf | 2873 | if (unit_file_install_info_has_rules(i)) |
0ec0deaa | 2874 | state = UNIT_FILE_DISABLED; |
7a7ec2bf | 2875 | else if (unit_file_install_info_has_also(i)) |
0ec0deaa LP |
2876 | state = UNIT_FILE_INDIRECT; |
2877 | else | |
2878 | state = UNIT_FILE_STATIC; | |
2879 | } | |
83096483 | 2880 | |
0ec0deaa LP |
2881 | break; |
2882 | ||
2883 | default: | |
e5369d1a | 2884 | assert_not_reached("Unexpected unit file type."); |
83096483 LP |
2885 | } |
2886 | ||
0ec0deaa LP |
2887 | *ret = state; |
2888 | return 0; | |
83096483 LP |
2889 | } |
2890 | ||
0ec0deaa | 2891 | int unit_file_get_state( |
a8ffe6fb ZJS |
2892 | UnitFileScope scope, |
2893 | const char *root_dir, | |
0ec0deaa LP |
2894 | const char *name, |
2895 | UnitFileState *ret) { | |
a8ffe6fb | 2896 | |
8e766630 | 2897 | _cleanup_(lookup_paths_free) LookupPaths paths = {}; |
a8ffe6fb ZJS |
2898 | int r; |
2899 | ||
2900 | assert(scope >= 0); | |
2901 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
2902 | assert(name); | |
2903 | ||
4943d143 | 2904 | r = lookup_paths_init(&paths, scope, 0, root_dir); |
a8ffe6fb ZJS |
2905 | if (r < 0) |
2906 | return r; | |
2907 | ||
e4bb56c7 | 2908 | return unit_file_lookup_state(scope, &paths, name, ret); |
a8ffe6fb ZJS |
2909 | } |
2910 | ||
e735decc LP |
2911 | int unit_file_exists(UnitFileScope scope, const LookupPaths *paths, const char *name) { |
2912 | _cleanup_(install_context_done) InstallContext c = {}; | |
2913 | int r; | |
2914 | ||
2915 | assert(paths); | |
2916 | assert(name); | |
2917 | ||
2918 | if (!unit_name_is_valid(name, UNIT_NAME_ANY)) | |
2919 | return -EINVAL; | |
2920 | ||
59108fbe | 2921 | r = install_info_discover(scope, &c, paths, name, 0, NULL, NULL, NULL); |
e735decc LP |
2922 | if (r == -ENOENT) |
2923 | return 0; | |
2924 | if (r < 0) | |
2925 | return r; | |
2926 | ||
2927 | return 1; | |
2928 | } | |
2929 | ||
4c9565ee RB |
2930 | static int split_pattern_into_name_and_instances(const char *pattern, char **out_unit_name, char ***out_instances) { |
2931 | _cleanup_strv_free_ char **instances = NULL; | |
2932 | _cleanup_free_ char *unit_name = NULL; | |
2933 | int r; | |
2934 | ||
2935 | assert(pattern); | |
2936 | assert(out_instances); | |
2937 | assert(out_unit_name); | |
2938 | ||
82bd4da7 | 2939 | r = extract_first_word(&pattern, &unit_name, NULL, EXTRACT_RETAIN_ESCAPE); |
4c9565ee RB |
2940 | if (r < 0) |
2941 | return r; | |
2942 | ||
2943 | /* We handle the instances logic when unit name is extracted */ | |
2944 | if (pattern) { | |
2945 | /* We only create instances when a rule of templated unit | |
2946 | * is seen. A rule like enable foo@.service a b c will | |
2947 | * result in an array of (a, b, c) as instance names */ | |
2948 | if (!unit_name_is_valid(unit_name, UNIT_NAME_TEMPLATE)) | |
2949 | return -EINVAL; | |
2950 | ||
2951 | instances = strv_split(pattern, WHITESPACE); | |
2952 | if (!instances) | |
2953 | return -ENOMEM; | |
2954 | ||
2955 | *out_instances = TAKE_PTR(instances); | |
2956 | } | |
2957 | ||
2958 | *out_unit_name = TAKE_PTR(unit_name); | |
2959 | ||
2960 | return 0; | |
2961 | } | |
2962 | ||
e0b8a238 | 2963 | static int presets_find_config(UnitFileScope scope, const char *root_dir, char ***files) { |
10fd1d46 ZJS |
2964 | static const char* const system_dirs[] = {CONF_PATHS("systemd/system-preset"), NULL}; |
2965 | static const char* const user_dirs[] = {CONF_PATHS_USR("systemd/user-preset"), NULL}; | |
f7767d76 | 2966 | const char* const* dirs; |
83096483 LP |
2967 | |
2968 | assert(scope >= 0); | |
2969 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
0ec0deaa | 2970 | |
a05294ff | 2971 | if (scope == UNIT_FILE_SYSTEM) |
10fd1d46 | 2972 | dirs = system_dirs; |
a05294ff | 2973 | else if (IN_SET(scope, UNIT_FILE_GLOBAL, UNIT_FILE_USER)) |
10fd1d46 | 2974 | dirs = user_dirs; |
a05294ff | 2975 | else |
264afce0 | 2976 | assert_not_reached("Invalid unit file scope"); |
83096483 | 2977 | |
f7767d76 | 2978 | return conf_files_list_strv(files, ".preset", root_dir, 0, dirs); |
e0b8a238 ZJS |
2979 | } |
2980 | ||
8f7b2566 ZJS |
2981 | static int read_presets(UnitFileScope scope, const char *root_dir, UnitFilePresets *presets) { |
2982 | _cleanup_(unit_file_presets_freep) UnitFilePresets ps = {}; | |
e0b8a238 ZJS |
2983 | _cleanup_strv_free_ char **files = NULL; |
2984 | char **p; | |
2985 | int r; | |
2986 | ||
2987 | assert(scope >= 0); | |
2988 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
2989 | assert(presets); | |
2990 | ||
2991 | r = presets_find_config(scope, root_dir, &files); | |
83096483 LP |
2992 | if (r < 0) |
2993 | return r; | |
2994 | ||
cba2ef02 | 2995 | STRV_FOREACH(p, files) { |
c2b2df60 | 2996 | _cleanup_fclose_ FILE *f = NULL; |
d544d1a4 | 2997 | int n = 0; |
83096483 | 2998 | |
cba2ef02 | 2999 | f = fopen(*p, "re"); |
83096483 LP |
3000 | if (!f) { |
3001 | if (errno == ENOENT) | |
3002 | continue; | |
3003 | ||
d9e5e694 | 3004 | return -errno; |
83096483 LP |
3005 | } |
3006 | ||
bef77f37 LP |
3007 | for (;;) { |
3008 | _cleanup_free_ char *line = NULL; | |
8f7b2566 | 3009 | UnitFilePresetRule rule = {}; |
0ec0deaa LP |
3010 | const char *parameter; |
3011 | char *l; | |
83096483 | 3012 | |
bef77f37 LP |
3013 | r = read_line(f, LONG_LINE_MAX, &line); |
3014 | if (r < 0) | |
3015 | return r; | |
3016 | if (r == 0) | |
3017 | break; | |
3018 | ||
83096483 | 3019 | l = strstrip(line); |
d544d1a4 | 3020 | n++; |
83096483 | 3021 | |
0ec0deaa LP |
3022 | if (isempty(l)) |
3023 | continue; | |
3024 | if (strchr(COMMENTS, *l)) | |
83096483 LP |
3025 | continue; |
3026 | ||
0ec0deaa LP |
3027 | parameter = first_word(l, "enable"); |
3028 | if (parameter) { | |
4c9565ee RB |
3029 | char *unit_name; |
3030 | char **instances = NULL; | |
d9e5e694 | 3031 | |
4c9565ee RB |
3032 | /* Unit_name will remain the same as parameter when no instances are specified */ |
3033 | r = split_pattern_into_name_and_instances(parameter, &unit_name, &instances); | |
3034 | if (r < 0) { | |
8ac3c9ab | 3035 | log_syntax(NULL, LOG_WARNING, *p, n, r, "Couldn't parse line '%s'. Ignoring.", line); |
4c9565ee RB |
3036 | continue; |
3037 | } | |
8965d9f8 | 3038 | |
8f7b2566 | 3039 | rule = (UnitFilePresetRule) { |
4c9565ee | 3040 | .pattern = unit_name, |
8965d9f8 | 3041 | .action = PRESET_ENABLE, |
4c9565ee | 3042 | .instances = instances, |
8965d9f8 | 3043 | }; |
0ec0deaa | 3044 | } |
83096483 | 3045 | |
0ec0deaa LP |
3046 | parameter = first_word(l, "disable"); |
3047 | if (parameter) { | |
8965d9f8 | 3048 | char *pattern; |
d9e5e694 | 3049 | |
8965d9f8 AC |
3050 | pattern = strdup(parameter); |
3051 | if (!pattern) | |
3052 | return -ENOMEM; | |
3053 | ||
8f7b2566 | 3054 | rule = (UnitFilePresetRule) { |
8965d9f8 AC |
3055 | .pattern = pattern, |
3056 | .action = PRESET_DISABLE, | |
3057 | }; | |
3058 | } | |
3059 | ||
3060 | if (rule.action) { | |
319a4f4b | 3061 | if (!GREEDY_REALLOC(ps.rules, ps.n_rules + 1)) |
8965d9f8 AC |
3062 | return -ENOMEM; |
3063 | ||
3064 | ps.rules[ps.n_rules++] = rule; | |
0ec0deaa LP |
3065 | continue; |
3066 | } | |
3067 | ||
d544d1a4 | 3068 | log_syntax(NULL, LOG_WARNING, *p, n, 0, "Couldn't parse line '%s'. Ignoring.", line); |
83096483 | 3069 | } |
83096483 LP |
3070 | } |
3071 | ||
8f7b2566 | 3072 | ps.initialized = true; |
8965d9f8 | 3073 | *presets = ps; |
8f7b2566 | 3074 | ps = (UnitFilePresets){}; |
8965d9f8 AC |
3075 | |
3076 | return 0; | |
3077 | } | |
3078 | ||
4c9565ee | 3079 | static int pattern_match_multiple_instances( |
8f7b2566 | 3080 | const UnitFilePresetRule rule, |
4c9565ee RB |
3081 | const char *unit_name, |
3082 | char ***ret) { | |
3083 | ||
3084 | _cleanup_free_ char *templated_name = NULL; | |
3085 | int r; | |
3086 | ||
3087 | /* If no ret is needed or the rule itself does not have instances | |
5238e957 | 3088 | * initialized, we return not matching */ |
4c9565ee RB |
3089 | if (!ret || !rule.instances) |
3090 | return 0; | |
3091 | ||
3092 | r = unit_name_template(unit_name, &templated_name); | |
3093 | if (r < 0) | |
3094 | return r; | |
3095 | if (!streq(rule.pattern, templated_name)) | |
3096 | return 0; | |
3097 | ||
3098 | /* Compose a list of specified instances when unit name is a template */ | |
3099 | if (unit_name_is_valid(unit_name, UNIT_NAME_TEMPLATE)) { | |
4c9565ee | 3100 | _cleanup_strv_free_ char **out_strv = NULL; |
4c9565ee | 3101 | |
47ab95fe | 3102 | char **iter; |
4c9565ee RB |
3103 | STRV_FOREACH(iter, rule.instances) { |
3104 | _cleanup_free_ char *name = NULL; | |
47ab95fe ZJS |
3105 | |
3106 | r = unit_name_replace_instance(unit_name, *iter, &name); | |
4c9565ee RB |
3107 | if (r < 0) |
3108 | return r; | |
47ab95fe ZJS |
3109 | |
3110 | r = strv_consume(&out_strv, TAKE_PTR(name)); | |
4c9565ee RB |
3111 | if (r < 0) |
3112 | return r; | |
3113 | } | |
3114 | ||
3115 | *ret = TAKE_PTR(out_strv); | |
3116 | return 1; | |
3117 | } else { | |
3118 | /* We now know the input unit name is an instance name */ | |
3119 | _cleanup_free_ char *instance_name = NULL; | |
3120 | ||
3121 | r = unit_name_to_instance(unit_name, &instance_name); | |
3122 | if (r < 0) | |
3123 | return r; | |
3124 | ||
3125 | if (strv_find(rule.instances, instance_name)) | |
3126 | return 1; | |
3127 | } | |
3128 | return 0; | |
3129 | } | |
3130 | ||
8f7b2566 | 3131 | static int query_presets(const char *name, const UnitFilePresets *presets, char ***instance_name_list) { |
8965d9f8 | 3132 | PresetAction action = PRESET_UNKNOWN; |
de8be28e | 3133 | |
8965d9f8 AC |
3134 | if (!unit_name_is_valid(name, UNIT_NAME_ANY)) |
3135 | return -EINVAL; | |
3136 | ||
de8be28e | 3137 | for (size_t i = 0; i < presets->n_rules; i++) |
8f7b2566 ZJS |
3138 | if (pattern_match_multiple_instances(presets->rules[i], name, instance_name_list) > 0 || |
3139 | fnmatch(presets->rules[i].pattern, name, FNM_NOESCAPE) == 0) { | |
3140 | action = presets->rules[i].action; | |
8965d9f8 AC |
3141 | break; |
3142 | } | |
3143 | ||
3144 | switch (action) { | |
3145 | case PRESET_UNKNOWN: | |
3146 | log_debug("Preset files don't specify rule for %s. Enabling.", name); | |
3147 | return 1; | |
3148 | case PRESET_ENABLE: | |
de8be28e ZJS |
3149 | if (instance_name_list && *instance_name_list) { |
3150 | char **s; | |
4c9565ee RB |
3151 | STRV_FOREACH(s, *instance_name_list) |
3152 | log_debug("Preset files say enable %s.", *s); | |
de8be28e | 3153 | } else |
4c9565ee | 3154 | log_debug("Preset files say enable %s.", name); |
8965d9f8 AC |
3155 | return 1; |
3156 | case PRESET_DISABLE: | |
3157 | log_debug("Preset files say disable %s.", name); | |
3158 | return 0; | |
3159 | default: | |
3160 | assert_not_reached("invalid preset action"); | |
3161 | } | |
3162 | } | |
3163 | ||
8f7b2566 ZJS |
3164 | int unit_file_query_preset(UnitFileScope scope, const char *root_dir, const char *name, UnitFilePresets *cached) { |
3165 | _cleanup_(unit_file_presets_freep) UnitFilePresets tmp = {}; | |
8965d9f8 AC |
3166 | int r; |
3167 | ||
8f7b2566 ZJS |
3168 | if (!cached) |
3169 | cached = &tmp; | |
3170 | if (!cached->initialized) { | |
3171 | r = read_presets(scope, root_dir, cached); | |
3172 | if (r < 0) | |
3173 | return r; | |
3174 | } | |
8965d9f8 | 3175 | |
8f7b2566 | 3176 | return query_presets(name, cached, NULL); |
83096483 LP |
3177 | } |
3178 | ||
0ec0deaa LP |
3179 | static int execute_preset( |
3180 | UnitFileScope scope, | |
3181 | InstallContext *plus, | |
3182 | InstallContext *minus, | |
3183 | const LookupPaths *paths, | |
1830ac51 | 3184 | const char *config_path, |
0ec0deaa LP |
3185 | char **files, |
3186 | UnitFilePresetMode mode, | |
1830ac51 | 3187 | bool force, |
0ec0deaa | 3188 | UnitFileChange **changes, |
da6053d0 | 3189 | size_t *n_changes) { |
0ec0deaa | 3190 | |
1830ac51 | 3191 | int r; |
0ec0deaa LP |
3192 | |
3193 | assert(plus); | |
3194 | assert(minus); | |
3195 | assert(paths); | |
1830ac51 | 3196 | assert(config_path); |
0ec0deaa LP |
3197 | |
3198 | if (mode != UNIT_FILE_PRESET_ENABLE_ONLY) { | |
3199 | _cleanup_set_free_free_ Set *remove_symlinks_to = NULL; | |
3200 | ||
1830ac51 MB |
3201 | r = install_context_mark_for_removal(scope, minus, paths, &remove_symlinks_to, config_path, changes, n_changes); |
3202 | if (r < 0) | |
3203 | return r; | |
0ec0deaa | 3204 | |
1830ac51 MB |
3205 | r = remove_marked_symlinks(remove_symlinks_to, config_path, paths, false, changes, n_changes); |
3206 | } else | |
3207 | r = 0; | |
0ec0deaa LP |
3208 | |
3209 | if (mode != UNIT_FILE_PRESET_DISABLE_ONLY) { | |
1830ac51 MB |
3210 | int q; |
3211 | ||
0ec0deaa | 3212 | /* Returns number of symlinks that where supposed to be installed. */ |
1830ac51 MB |
3213 | q = install_context_apply(scope, plus, paths, config_path, force, SEARCH_LOAD, changes, n_changes); |
3214 | if (r >= 0) { | |
3215 | if (q < 0) | |
3216 | r = q; | |
3217 | else | |
3218 | r += q; | |
3219 | } | |
0ec0deaa LP |
3220 | } |
3221 | ||
3222 | return r; | |
3223 | } | |
3224 | ||
3225 | static int preset_prepare_one( | |
3226 | UnitFileScope scope, | |
3227 | InstallContext *plus, | |
3228 | InstallContext *minus, | |
3229 | LookupPaths *paths, | |
af3d8113 | 3230 | const char *name, |
8f7b2566 | 3231 | const UnitFilePresets *presets, |
af3d8113 | 3232 | UnitFileChange **changes, |
da6053d0 | 3233 | size_t *n_changes) { |
0ec0deaa | 3234 | |
11e11fd5 | 3235 | _cleanup_(install_context_done) InstallContext tmp = {}; |
4c9565ee | 3236 | _cleanup_strv_free_ char **instance_name_list = NULL; |
0ec0deaa LP |
3237 | UnitFileInstallInfo *i; |
3238 | int r; | |
3239 | ||
11e11fd5 | 3240 | if (install_info_find(plus, name) || install_info_find(minus, name)) |
0ec0deaa LP |
3241 | return 0; |
3242 | ||
59108fbe ZJS |
3243 | r = install_info_discover(scope, &tmp, paths, name, SEARCH_FOLLOW_CONFIG_SYMLINKS, |
3244 | &i, changes, n_changes); | |
11e11fd5 ZJS |
3245 | if (r < 0) |
3246 | return r; | |
3247 | if (!streq(name, i->name)) { | |
10d67460 | 3248 | log_debug("Skipping %s because it is an alias for %s.", name, i->name); |
11e11fd5 ZJS |
3249 | return 0; |
3250 | } | |
3251 | ||
4c9565ee | 3252 | r = query_presets(name, presets, &instance_name_list); |
0ec0deaa LP |
3253 | if (r < 0) |
3254 | return r; | |
3255 | ||
3256 | if (r > 0) { | |
4c9565ee RB |
3257 | if (instance_name_list) { |
3258 | char **s; | |
3259 | STRV_FOREACH(s, instance_name_list) { | |
1e475a0a RB |
3260 | r = install_info_discover_and_check(scope, plus, paths, *s, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS, |
3261 | &i, changes, n_changes); | |
4c9565ee RB |
3262 | if (r < 0) |
3263 | return r; | |
3264 | } | |
3265 | } else { | |
1e475a0a RB |
3266 | r = install_info_discover_and_check(scope, plus, paths, name, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS, |
3267 | &i, changes, n_changes); | |
4c9565ee RB |
3268 | if (r < 0) |
3269 | return r; | |
3270 | } | |
0ec0deaa | 3271 | |
0ec0deaa | 3272 | } else |
59108fbe ZJS |
3273 | r = install_info_discover(scope, minus, paths, name, SEARCH_FOLLOW_CONFIG_SYMLINKS, |
3274 | &i, changes, n_changes); | |
0ec0deaa LP |
3275 | |
3276 | return r; | |
3277 | } | |
3278 | ||
83096483 LP |
3279 | int unit_file_preset( |
3280 | UnitFileScope scope, | |
b3796dd8 | 3281 | UnitFileFlags flags, |
83096483 | 3282 | const char *root_dir, |
7195aa42 | 3283 | char **files, |
d309c1c3 | 3284 | UnitFilePresetMode mode, |
83096483 | 3285 | UnitFileChange **changes, |
da6053d0 | 3286 | size_t *n_changes) { |
83096483 | 3287 | |
59ccf93d | 3288 | _cleanup_(install_context_done) InstallContext plus = {}, minus = {}; |
8e766630 | 3289 | _cleanup_(lookup_paths_free) LookupPaths paths = {}; |
8f7b2566 | 3290 | _cleanup_(unit_file_presets_freep) UnitFilePresets presets = {}; |
1830ac51 | 3291 | const char *config_path; |
da39f6a6 | 3292 | char **i; |
0ec0deaa | 3293 | int r; |
83096483 LP |
3294 | |
3295 | assert(scope >= 0); | |
3296 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
86bbe5bf | 3297 | assert(mode < _UNIT_FILE_PRESET_MAX); |
83096483 | 3298 | |
4943d143 | 3299 | r = lookup_paths_init(&paths, scope, 0, root_dir); |
83096483 LP |
3300 | if (r < 0) |
3301 | return r; | |
3302 | ||
1830ac51 MB |
3303 | config_path = (flags & UNIT_FILE_RUNTIME) ? paths.runtime_config : paths.persistent_config; |
3304 | if (!config_path) | |
3305 | return -ENXIO; | |
3306 | ||
8965d9f8 AC |
3307 | r = read_presets(scope, root_dir, &presets); |
3308 | if (r < 0) | |
3309 | return r; | |
83096483 | 3310 | |
8965d9f8 | 3311 | STRV_FOREACH(i, files) { |
8f7b2566 | 3312 | r = preset_prepare_one(scope, &plus, &minus, &paths, *i, &presets, changes, n_changes); |
83096483 | 3313 | if (r < 0) |
d9e5e694 | 3314 | return r; |
83096483 LP |
3315 | } |
3316 | ||
1830ac51 | 3317 | return execute_preset(scope, &plus, &minus, &paths, config_path, files, mode, !!(flags & UNIT_FILE_FORCE), changes, n_changes); |
d309c1c3 LP |
3318 | } |
3319 | ||
3320 | int unit_file_preset_all( | |
3321 | UnitFileScope scope, | |
b3796dd8 | 3322 | UnitFileFlags flags, |
d309c1c3 LP |
3323 | const char *root_dir, |
3324 | UnitFilePresetMode mode, | |
d309c1c3 | 3325 | UnitFileChange **changes, |
da6053d0 | 3326 | size_t *n_changes) { |
d309c1c3 | 3327 | |
59ccf93d | 3328 | _cleanup_(install_context_done) InstallContext plus = {}, minus = {}; |
8e766630 | 3329 | _cleanup_(lookup_paths_free) LookupPaths paths = {}; |
8f7b2566 | 3330 | _cleanup_(unit_file_presets_freep) UnitFilePresets presets = {}; |
1830ac51 | 3331 | const char *config_path = NULL; |
d309c1c3 | 3332 | char **i; |
0ec0deaa | 3333 | int r; |
d309c1c3 LP |
3334 | |
3335 | assert(scope >= 0); | |
3336 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
86bbe5bf | 3337 | assert(mode < _UNIT_FILE_PRESET_MAX); |
d309c1c3 | 3338 | |
4943d143 | 3339 | r = lookup_paths_init(&paths, scope, 0, root_dir); |
d309c1c3 LP |
3340 | if (r < 0) |
3341 | return r; | |
3342 | ||
1830ac51 MB |
3343 | config_path = (flags & UNIT_FILE_RUNTIME) ? paths.runtime_config : paths.persistent_config; |
3344 | if (!config_path) | |
3345 | return -ENXIO; | |
3346 | ||
8965d9f8 AC |
3347 | r = read_presets(scope, root_dir, &presets); |
3348 | if (r < 0) | |
3349 | return r; | |
3350 | ||
a3c4eb07 | 3351 | STRV_FOREACH(i, paths.search_path) { |
d309c1c3 | 3352 | _cleanup_closedir_ DIR *d = NULL; |
d25e100b | 3353 | struct dirent *de; |
d309c1c3 | 3354 | |
401017e0 | 3355 | d = opendir(*i); |
d309c1c3 LP |
3356 | if (!d) { |
3357 | if (errno == ENOENT) | |
3358 | continue; | |
3359 | ||
3360 | return -errno; | |
3361 | } | |
3362 | ||
d25e100b | 3363 | FOREACH_DIRENT(de, d, return -errno) { |
1830ac51 | 3364 | |
7410616c | 3365 | if (!unit_name_is_valid(de->d_name, UNIT_NAME_ANY)) |
d309c1c3 LP |
3366 | continue; |
3367 | ||
3368 | dirent_ensure_type(d, de); | |
3369 | ||
0ec0deaa | 3370 | if (!IN_SET(de->d_type, DT_LNK, DT_REG)) |
d309c1c3 LP |
3371 | continue; |
3372 | ||
4a203a51 ZJS |
3373 | r = preset_prepare_one(scope, &plus, &minus, &paths, de->d_name, &presets, changes, n_changes); |
3374 | if (r < 0 && | |
3375 | !IN_SET(r, -EEXIST, -ERFKILL, -EADDRNOTAVAIL, -EIDRM, -EUCLEAN, -ELOOP, -ENOENT)) | |
3376 | /* Ignore generated/transient/missing/invalid units when applying preset, propagate other errors. | |
3377 | * Coordinate with unit_file_dump_changes() above. */ | |
d309c1c3 LP |
3378 | return r; |
3379 | } | |
3380 | } | |
3381 | ||
1830ac51 | 3382 | return execute_preset(scope, &plus, &minus, &paths, config_path, NULL, mode, !!(flags & UNIT_FILE_FORCE), changes, n_changes); |
83096483 LP |
3383 | } |
3384 | ||
75db809a | 3385 | static UnitFileList* unit_file_list_free_one(UnitFileList *f) { |
59ccf93d | 3386 | if (!f) |
75db809a | 3387 | return NULL; |
d9e5e694 | 3388 | |
59ccf93d | 3389 | free(f->path); |
75db809a | 3390 | return mfree(f); |
d9e5e694 | 3391 | } |
59ccf93d | 3392 | |
0ec0deaa | 3393 | Hashmap* unit_file_list_free(Hashmap *h) { |
224b0e7a | 3394 | return hashmap_free_with_destructor(h, unit_file_list_free_one); |
0ec0deaa LP |
3395 | } |
3396 | ||
59ccf93d | 3397 | DEFINE_TRIVIAL_CLEANUP_FUNC(UnitFileList*, unit_file_list_free_one); |
d9e5e694 | 3398 | |
83096483 LP |
3399 | int unit_file_get_list( |
3400 | UnitFileScope scope, | |
3401 | const char *root_dir, | |
313fe66f | 3402 | Hashmap *h, |
3403 | char **states, | |
3404 | char **patterns) { | |
83096483 | 3405 | |
8e766630 | 3406 | _cleanup_(lookup_paths_free) LookupPaths paths = {}; |
9c894b85 | 3407 | char **dirname; |
83096483 LP |
3408 | int r; |
3409 | ||
3410 | assert(scope >= 0); | |
3411 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
3412 | assert(h); | |
3413 | ||
4943d143 | 3414 | r = lookup_paths_init(&paths, scope, 0, root_dir); |
83096483 LP |
3415 | if (r < 0) |
3416 | return r; | |
3417 | ||
9c894b85 | 3418 | STRV_FOREACH(dirname, paths.search_path) { |
da39f6a6 | 3419 | _cleanup_closedir_ DIR *d = NULL; |
d25e100b | 3420 | struct dirent *de; |
83096483 | 3421 | |
9c894b85 | 3422 | d = opendir(*dirname); |
83096483 LP |
3423 | if (!d) { |
3424 | if (errno == ENOENT) | |
3425 | continue; | |
a1feacf7 | 3426 | if (IN_SET(errno, ENOTDIR, EACCES)) { |
9c894b85 | 3427 | log_debug_errno(errno, "Failed to open \"%s\": %m", *dirname); |
a1feacf7 ZJS |
3428 | continue; |
3429 | } | |
83096483 | 3430 | |
d9e5e694 | 3431 | return -errno; |
83096483 LP |
3432 | } |
3433 | ||
d25e100b | 3434 | FOREACH_DIRENT(de, d, return -errno) { |
59ccf93d | 3435 | _cleanup_(unit_file_list_free_onep) UnitFileList *f = NULL; |
83096483 | 3436 | |
7410616c | 3437 | if (!unit_name_is_valid(de->d_name, UNIT_NAME_ANY)) |
83096483 LP |
3438 | continue; |
3439 | ||
313fe66f | 3440 | if (!strv_fnmatch_or_empty(patterns, de->d_name, FNM_NOESCAPE)) |
3441 | continue; | |
3442 | ||
83096483 LP |
3443 | if (hashmap_get(h, de->d_name)) |
3444 | continue; | |
3445 | ||
da39f6a6 | 3446 | dirent_ensure_type(d, de); |
83096483 | 3447 | |
da39f6a6 | 3448 | if (!IN_SET(de->d_type, DT_LNK, DT_REG)) |
83096483 LP |
3449 | continue; |
3450 | ||
3451 | f = new0(UnitFileList, 1); | |
d9e5e694 ZJS |
3452 | if (!f) |
3453 | return -ENOMEM; | |
83096483 | 3454 | |
9c894b85 | 3455 | f->path = path_make_absolute(de->d_name, *dirname); |
d9e5e694 ZJS |
3456 | if (!f->path) |
3457 | return -ENOMEM; | |
83096483 | 3458 | |
401017e0 | 3459 | r = unit_file_lookup_state(scope, &paths, de->d_name, &f->state); |
d9e5e694 | 3460 | if (r < 0) |
0ec0deaa | 3461 | f->state = UNIT_FILE_BAD; |
81fc054d | 3462 | |
313fe66f | 3463 | if (!strv_isempty(states) && |
3464 | !strv_contains(states, unit_file_state_to_string(f->state))) | |
3465 | continue; | |
3466 | ||
2b6bf07d | 3467 | r = hashmap_put(h, basename(f->path), f); |
d9e5e694 ZJS |
3468 | if (r < 0) |
3469 | return r; | |
0ec0deaa | 3470 | |
d9e5e694 | 3471 | f = NULL; /* prevent cleanup */ |
83096483 LP |
3472 | } |
3473 | } | |
3474 | ||
77cd2c87 | 3475 | return 0; |
83096483 LP |
3476 | } |
3477 | ||
3478 | static const char* const unit_file_state_table[_UNIT_FILE_STATE_MAX] = { | |
babccf14 | 3479 | [UNIT_FILE_ENABLED] = "enabled", |
771faa9a | 3480 | [UNIT_FILE_ENABLED_RUNTIME] = "enabled-runtime", |
babccf14 ZJS |
3481 | [UNIT_FILE_LINKED] = "linked", |
3482 | [UNIT_FILE_LINKED_RUNTIME] = "linked-runtime", | |
15d7ab87 | 3483 | [UNIT_FILE_ALIAS] = "alias", |
babccf14 ZJS |
3484 | [UNIT_FILE_MASKED] = "masked", |
3485 | [UNIT_FILE_MASKED_RUNTIME] = "masked-runtime", | |
3486 | [UNIT_FILE_STATIC] = "static", | |
3487 | [UNIT_FILE_DISABLED] = "disabled", | |
3488 | [UNIT_FILE_INDIRECT] = "indirect", | |
3489 | [UNIT_FILE_GENERATED] = "generated", | |
3490 | [UNIT_FILE_TRANSIENT] = "transient", | |
3491 | [UNIT_FILE_BAD] = "bad", | |
83096483 LP |
3492 | }; |
3493 | ||
3494 | DEFINE_STRING_TABLE_LOOKUP(unit_file_state, UnitFileState); | |
c0576cd6 LP |
3495 | |
3496 | static const char* const unit_file_change_type_table[_UNIT_FILE_CHANGE_TYPE_MAX] = { | |
8ae27441 JS |
3497 | [UNIT_FILE_SYMLINK] = "symlink", |
3498 | [UNIT_FILE_UNLINK] = "unlink", | |
3499 | [UNIT_FILE_IS_MASKED] = "masked", | |
3500 | [UNIT_FILE_IS_DANGLING] = "dangling", | |
3501 | [UNIT_FILE_DESTINATION_NOT_PRESENT] = "destination not present", | |
3aa96361 | 3502 | [UNIT_FILE_AUXILIARY_FAILED] = "auxiliary unit failed", |
c0576cd6 LP |
3503 | }; |
3504 | ||
93419a96 | 3505 | DEFINE_STRING_TABLE_LOOKUP(unit_file_change_type, int); |
d309c1c3 | 3506 | |
86bbe5bf | 3507 | static const char* const unit_file_preset_mode_table[_UNIT_FILE_PRESET_MAX] = { |
babccf14 ZJS |
3508 | [UNIT_FILE_PRESET_FULL] = "full", |
3509 | [UNIT_FILE_PRESET_ENABLE_ONLY] = "enable-only", | |
d309c1c3 LP |
3510 | [UNIT_FILE_PRESET_DISABLE_ONLY] = "disable-only", |
3511 | }; | |
3512 | ||
3513 | DEFINE_STRING_TABLE_LOOKUP(unit_file_preset_mode, UnitFilePresetMode); |