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db9ecf05 | 1 | /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
83096483 | 2 | |
83096483 | 3 | #include <fcntl.h> |
83096483 | 4 | #include <fnmatch.h> |
a8fbdf54 | 5 | #include <stdio.h> |
07630cea | 6 | #include <unistd.h> |
83096483 | 7 | |
b5efdb8a | 8 | #include "alloc-util.h" |
d41f08bd | 9 | #include "bus-common-errors.h" |
f461a28d | 10 | #include "chase.h" |
07630cea LP |
11 | #include "conf-files.h" |
12 | #include "conf-parser.h" | |
28db6fbf | 13 | #include "constants.h" |
a0956174 | 14 | #include "dirent-util.h" |
69a283c5 | 15 | #include "errno-util.h" |
a8fbdf54 | 16 | #include "extract-word.h" |
a0956174 | 17 | #include "fd-util.h" |
0ec0deaa | 18 | #include "fileio.h" |
f4f15635 | 19 | #include "fs-util.h" |
69a283c5 | 20 | #include "glyph-util.h" |
83096483 | 21 | #include "hashmap.h" |
a0956174 | 22 | #include "install.h" |
1cf40697 | 23 | #include "install-printf.h" |
a8fbdf54 | 24 | #include "log.h" |
35cd0ba5 | 25 | #include "mkdir-label.h" |
83096483 | 26 | #include "path-lookup.h" |
07630cea | 27 | #include "path-util.h" |
344ca755 | 28 | #include "rm-rf.h" |
07630cea LP |
29 | #include "set.h" |
30 | #include "special.h" | |
8fcde012 | 31 | #include "stat-util.h" |
8b43440b | 32 | #include "string-table.h" |
07630cea | 33 | #include "string-util.h" |
83096483 | 34 | #include "strv.h" |
5cfa33e0 | 35 | #include "unit-file.h" |
69a283c5 | 36 | #include "unit-name.h" |
83096483 | 37 | |
0ec0deaa LP |
38 | #define UNIT_FILE_FOLLOW_SYMLINK_MAX 64 |
39 | ||
40 | typedef enum SearchFlags { | |
ef31828d LP |
41 | SEARCH_LOAD = 1 << 0, |
42 | SEARCH_FOLLOW_CONFIG_SYMLINKS = 1 << 1, | |
43 | SEARCH_DROPIN = 1 << 2, | |
0ec0deaa LP |
44 | } SearchFlags; |
45 | ||
83096483 | 46 | typedef struct { |
4870133b | 47 | RuntimeScope scope; |
0ec0deaa LP |
48 | OrderedHashmap *will_process; |
49 | OrderedHashmap *have_processed; | |
83096483 LP |
50 | } InstallContext; |
51 | ||
8f7b2566 | 52 | struct UnitFilePresetRule { |
8965d9f8 AC |
53 | char *pattern; |
54 | PresetAction action; | |
4c9565ee | 55 | char **instances; |
8f7b2566 | 56 | }; |
8965d9f8 | 57 | |
e77e07f6 DDM |
58 | /* NB! strings use past tense. */ |
59 | static const char *const preset_action_past_tense_table[_PRESET_ACTION_MAX] = { | |
60 | [PRESET_UNKNOWN] = "unknown", | |
61 | [PRESET_ENABLE] = "enabled", | |
62 | [PRESET_DISABLE] = "disabled", | |
63 | [PRESET_IGNORE] = "ignored", | |
64 | }; | |
65 | ||
66 | DEFINE_STRING_TABLE_LOOKUP_TO_STRING(preset_action_past_tense, PresetAction); | |
67 | ||
0047d54d | 68 | static bool install_info_has_rules(const InstallInfo *i) { |
7a7ec2bf ZJS |
69 | assert(i); |
70 | ||
71 | return !strv_isempty(i->aliases) || | |
72 | !strv_isempty(i->wanted_by) || | |
38f90179 MY |
73 | !strv_isempty(i->required_by) || |
74 | !strv_isempty(i->upheld_by); | |
7a7ec2bf ZJS |
75 | } |
76 | ||
0047d54d | 77 | static bool install_info_has_also(const InstallInfo *i) { |
7a7ec2bf ZJS |
78 | assert(i); |
79 | ||
80 | return !strv_isempty(i->also); | |
81 | } | |
82 | ||
52c788e6 DT |
83 | static void unit_file_preset_rule_done(UnitFilePresetRule *rule) { |
84 | assert(rule); | |
85 | ||
86 | free(rule->pattern); | |
87 | strv_free(rule->instances); | |
88 | } | |
89 | ||
05cdf6a7 | 90 | void unit_file_presets_done(UnitFilePresets *p) { |
8965d9f8 AC |
91 | if (!p) |
92 | return; | |
93 | ||
f52477d6 DT |
94 | FOREACH_ARRAY(rule, p->rules, p->n_rules) |
95 | unit_file_preset_rule_done(rule); | |
8965d9f8 AC |
96 | |
97 | free(p->rules); | |
98 | p->n_rules = 0; | |
99 | } | |
100 | ||
318031fd ZJS |
101 | static const char *const install_mode_table[_INSTALL_MODE_MAX] = { |
102 | [INSTALL_MODE_REGULAR] = "regular", | |
103 | [INSTALL_MODE_LINKED] = "linked", | |
104 | [INSTALL_MODE_ALIAS] = "alias", | |
105 | [INSTALL_MODE_MASKED] = "masked", | |
64f9280e ZJS |
106 | }; |
107 | ||
318031fd | 108 | DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(install_mode, InstallMode); |
64f9280e | 109 | |
c3e7fba0 | 110 | static int in_search_path(const LookupPaths *lp, const char *path) { |
8f294b45 | 111 | _cleanup_free_ char *parent = NULL; |
45519d13 | 112 | int r; |
8f294b45 | 113 | |
a6f318a5 | 114 | /* Check if 'path' is in lp->search_path. */ |
8f294b45 | 115 | |
05adb256 MY |
116 | assert(lp); |
117 | assert(path); | |
118 | ||
119 | r = path_extract_directory(path, &parent); | |
45519d13 LP |
120 | if (r < 0) |
121 | return r; | |
8f294b45 | 122 | |
05adb256 | 123 | return path_strv_contains(lp->search_path, parent); |
a6f318a5 ZJS |
124 | } |
125 | ||
05adb256 | 126 | static bool underneath_search_path(const LookupPaths *lp, const char *path) { |
a6f318a5 ZJS |
127 | /* Check if 'path' is underneath lp->search_path. */ |
128 | ||
05adb256 MY |
129 | assert(lp); |
130 | assert(path); | |
131 | ||
132 | return path_startswith_strv(path, lp->search_path); | |
8f294b45 LP |
133 | } |
134 | ||
c3e7fba0 | 135 | static const char* skip_root(const char *root_dir, const char *path) { |
8f9364f9 | 136 | assert(path); |
401017e0 | 137 | |
c3e7fba0 | 138 | if (!root_dir) |
8f9364f9 | 139 | return path; |
401017e0 | 140 | |
c3e7fba0 | 141 | const char *e = path_startswith(path, root_dir); |
8f9364f9 LP |
142 | if (!e) |
143 | return NULL; | |
144 | ||
145 | /* Make sure the returned path starts with a slash */ | |
146 | if (e[0] != '/') { | |
147 | if (e == path || e[-1] != '/') | |
148 | return NULL; | |
401017e0 | 149 | |
8f9364f9 | 150 | e--; |
401017e0 LP |
151 | } |
152 | ||
8f9364f9 | 153 | return e; |
401017e0 LP |
154 | } |
155 | ||
c3e7fba0 | 156 | static int path_is_generator(const LookupPaths *lp, const char *path) { |
f4139308 | 157 | _cleanup_free_ char *parent = NULL; |
45519d13 | 158 | int r; |
f4139308 | 159 | |
c3e7fba0 | 160 | assert(lp); |
f4139308 LP |
161 | assert(path); |
162 | ||
45519d13 LP |
163 | r = path_extract_directory(path, &parent); |
164 | if (r < 0) | |
165 | return r; | |
f4139308 | 166 | |
acb27fba ZJS |
167 | return PATH_IN_SET(parent, |
168 | lp->generator, | |
169 | lp->generator_early, | |
170 | lp->generator_late); | |
f4139308 LP |
171 | } |
172 | ||
c3e7fba0 | 173 | static int path_is_transient(const LookupPaths *lp, const char *path) { |
e4fca67f | 174 | _cleanup_free_ char *parent = NULL; |
45519d13 | 175 | int r; |
e4fca67f | 176 | |
c3e7fba0 | 177 | assert(lp); |
e4fca67f LP |
178 | assert(path); |
179 | ||
45519d13 LP |
180 | r = path_extract_directory(path, &parent); |
181 | if (r < 0) | |
182 | return r; | |
e4fca67f | 183 | |
1934242b | 184 | return path_equal(parent, lp->transient); |
e4fca67f LP |
185 | } |
186 | ||
c3e7fba0 | 187 | static int path_is_control(const LookupPaths *lp, const char *path) { |
e1c5c2b0 | 188 | _cleanup_free_ char *parent = NULL; |
45519d13 | 189 | int r; |
0ec0deaa | 190 | |
c3e7fba0 | 191 | assert(lp); |
0ec0deaa LP |
192 | assert(path); |
193 | ||
45519d13 LP |
194 | r = path_extract_directory(path, &parent); |
195 | if (r < 0) | |
196 | return r; | |
0ec0deaa | 197 | |
acb27fba ZJS |
198 | return PATH_IN_SET(parent, |
199 | lp->persistent_control, | |
200 | lp->runtime_control); | |
344ca755 LP |
201 | } |
202 | ||
c3e7fba0 | 203 | static int path_is_config(const LookupPaths *lp, const char *path, bool check_parent) { |
344ca755 | 204 | _cleanup_free_ char *parent = NULL; |
45519d13 | 205 | int r; |
344ca755 | 206 | |
c3e7fba0 | 207 | assert(lp); |
344ca755 LP |
208 | assert(path); |
209 | ||
d7604756 ZJS |
210 | /* Note that we do *not* have generic checks for /etc or /run in place, since with |
211 | * them we couldn't discern configuration from transient or generated units */ | |
0ec0deaa | 212 | |
dfead90d | 213 | if (check_parent) { |
45519d13 LP |
214 | r = path_extract_directory(path, &parent); |
215 | if (r < 0) | |
216 | return r; | |
dfead90d LP |
217 | |
218 | path = parent; | |
219 | } | |
0ec0deaa | 220 | |
acb27fba ZJS |
221 | return PATH_IN_SET(path, |
222 | lp->persistent_config, | |
223 | lp->runtime_config); | |
0ec0deaa LP |
224 | } |
225 | ||
c3e7fba0 | 226 | static int path_is_runtime(const LookupPaths *lp, const char *path, bool check_parent) { |
385eb996 | 227 | _cleanup_free_ char *parent = NULL; |
401017e0 | 228 | const char *rpath; |
45519d13 | 229 | int r; |
385eb996 | 230 | |
c3e7fba0 | 231 | assert(lp); |
385eb996 LP |
232 | assert(path); |
233 | ||
d7604756 ZJS |
234 | /* Everything in /run is considered runtime. On top of that we also add |
235 | * explicit checks for the various runtime directories, as safety net. */ | |
344ca755 | 236 | |
c3e7fba0 | 237 | rpath = skip_root(lp->root_dir, path); |
401017e0 | 238 | if (rpath && path_startswith(rpath, "/run")) |
385eb996 LP |
239 | return true; |
240 | ||
dfead90d | 241 | if (check_parent) { |
45519d13 LP |
242 | r = path_extract_directory(path, &parent); |
243 | if (r < 0) | |
244 | return r; | |
385eb996 | 245 | |
dfead90d LP |
246 | path = parent; |
247 | } | |
248 | ||
acb27fba ZJS |
249 | return PATH_IN_SET(path, |
250 | lp->runtime_config, | |
251 | lp->generator, | |
252 | lp->generator_early, | |
253 | lp->generator_late, | |
254 | lp->transient, | |
255 | lp->runtime_control); | |
344ca755 LP |
256 | } |
257 | ||
c3e7fba0 | 258 | static int path_is_vendor_or_generator(const LookupPaths *lp, const char *path) { |
344ca755 LP |
259 | const char *rpath; |
260 | ||
c3e7fba0 | 261 | assert(lp); |
344ca755 LP |
262 | assert(path); |
263 | ||
c3e7fba0 | 264 | rpath = skip_root(lp->root_dir, path); |
344ca755 LP |
265 | if (!rpath) |
266 | return 0; | |
267 | ||
268 | if (path_startswith(rpath, "/usr")) | |
269 | return true; | |
270 | ||
c3e7fba0 | 271 | if (path_is_generator(lp, rpath)) |
efdbf5fe JC |
272 | return true; |
273 | ||
835cf75a | 274 | return path_equal(rpath, SYSTEM_DATA_UNIT_DIR); |
385eb996 LP |
275 | } |
276 | ||
c3e7fba0 ZJS |
277 | static const char* config_path_from_flags(const LookupPaths *lp, UnitFileFlags flags) { |
278 | assert(lp); | |
83654007 LB |
279 | |
280 | if (FLAGS_SET(flags, UNIT_FILE_PORTABLE)) | |
c3e7fba0 | 281 | return FLAGS_SET(flags, UNIT_FILE_RUNTIME) ? lp->runtime_attached : lp->persistent_attached; |
83654007 | 282 | else |
c3e7fba0 | 283 | return FLAGS_SET(flags, UNIT_FILE_RUNTIME) ? lp->runtime_config : lp->persistent_config; |
83654007 LB |
284 | } |
285 | ||
94e7298d | 286 | InstallChangeType install_changes_add( |
cd44ec5a | 287 | InstallChange **changes, |
da6053d0 | 288 | size_t *n_changes, |
f8662fee | 289 | InstallChangeType type, /* INSTALL_CHANGE_SYMLINK, _UNLINK, _IS_MASKED, _IS_DANGLING, … if positive or errno if negative */ |
0ec0deaa LP |
290 | const char *path, |
291 | const char *source) { | |
292 | ||
12bf0ae4 | 293 | _cleanup_free_ char *p = NULL, *s = NULL; |
660087dc | 294 | int r; |
0ec0deaa | 295 | |
0ec0deaa | 296 | assert(!changes == !n_changes); |
f8662fee | 297 | assert(INSTALL_CHANGE_TYPE_VALID(type)); |
93419a96 | 298 | |
4a4af850 ZJS |
299 | /* Message formatting requires <path> to be set. */ |
300 | assert(path); | |
301 | ||
94e7298d ZJS |
302 | /* Register a change or error. Note that the return value may be the error |
303 | * that was passed in, or -ENOMEM generated internally. */ | |
304 | ||
0ec0deaa | 305 | if (!changes) |
94e7298d | 306 | return type; |
0ec0deaa | 307 | |
223a67e5 | 308 | if (!GREEDY_REALLOC(*changes, *n_changes + 1)) |
0ec0deaa | 309 | return -ENOMEM; |
0ec0deaa | 310 | |
660087dc ZJS |
311 | r = path_simplify_alloc(path, &p); |
312 | if (r < 0) | |
313 | return r; | |
93419a96 | 314 | |
660087dc ZJS |
315 | r = path_simplify_alloc(source, &s); |
316 | if (r < 0) | |
317 | return r; | |
93419a96 | 318 | |
223a67e5 | 319 | (*changes)[(*n_changes)++] = (InstallChange) { |
f8662fee | 320 | .type = type, |
93419a96 LP |
321 | .path = TAKE_PTR(p), |
322 | .source = TAKE_PTR(s), | |
323 | }; | |
0ec0deaa | 324 | |
94e7298d | 325 | return type; |
0ec0deaa LP |
326 | } |
327 | ||
cd44ec5a | 328 | void install_changes_free(InstallChange *changes, size_t n_changes) { |
0ec0deaa LP |
329 | assert(changes || n_changes == 0); |
330 | ||
b412274f MY |
331 | FOREACH_ARRAY(i, changes, n_changes) { |
332 | free(i->path); | |
333 | free(i->source); | |
0ec0deaa LP |
334 | } |
335 | ||
336 | free(changes); | |
337 | } | |
338 | ||
d41f08bd MY |
339 | static void install_change_dump_success(const InstallChange *change) { |
340 | assert(change); | |
341 | assert(change->path); | |
af3d8113 | 342 | |
d41f08bd | 343 | switch (change->type) { |
af3d8113 | 344 | |
d41f08bd MY |
345 | case INSTALL_CHANGE_SYMLINK: |
346 | return log_info("Created symlink '%s' %s '%s'.", | |
1ae9b0cf | 347 | change->path, glyph(GLYPH_ARROW_RIGHT), change->source); |
af3d8113 | 348 | |
d41f08bd MY |
349 | case INSTALL_CHANGE_UNLINK: |
350 | return log_info("Removed '%s'.", change->path); | |
5ad58fea | 351 | |
d41f08bd MY |
352 | case INSTALL_CHANGE_IS_MASKED: |
353 | return log_info("Unit %s is masked, ignoring.", change->path); | |
354 | ||
355 | case INSTALL_CHANGE_IS_MASKED_GENERATOR: | |
356 | return log_info("Unit %s is masked via a generator and cannot be unmasked, skipping.", change->path); | |
357 | ||
358 | case INSTALL_CHANGE_IS_DANGLING: | |
359 | return log_info("Unit %s is an alias to a non-existent unit, ignoring.", change->path); | |
360 | ||
361 | case INSTALL_CHANGE_DESTINATION_NOT_PRESENT: | |
362 | return log_warning("Unit %s is added as a dependency to a non-existent unit %s.", | |
363 | change->source, change->path); | |
364 | ||
365 | case INSTALL_CHANGE_AUXILIARY_FAILED: | |
366 | return log_warning("Failed to enable auxiliary unit %s, ignoring.", change->path); | |
367 | ||
368 | default: | |
369 | assert_not_reached(); | |
370 | } | |
371 | } | |
372 | ||
373 | int install_change_dump_error(const InstallChange *change, char **ret_errmsg, const char **ret_bus_error) { | |
374 | char *m; | |
375 | const char *bus_error; | |
376 | ||
377 | /* Returns 0: known error and ret_errmsg formatted | |
378 | * < 0: non-recognizable error */ | |
379 | ||
380 | assert(change); | |
381 | assert(change->path); | |
382 | assert(change->type < 0); | |
383 | assert(ret_errmsg); | |
384 | ||
385 | switch (change->type) { | |
386 | ||
387 | case -EEXIST: | |
388 | m = strjoin("File '", change->path, "' already exists", | |
389 | change->source ? " and is a symlink to " : NULL, change->source); | |
390 | bus_error = BUS_ERROR_UNIT_EXISTS; | |
391 | break; | |
392 | ||
393 | case -ERFKILL: | |
394 | m = strjoin("Unit ", change->path, " is masked"); | |
395 | bus_error = BUS_ERROR_UNIT_MASKED; | |
396 | break; | |
397 | ||
398 | case -EADDRNOTAVAIL: | |
399 | m = strjoin("Unit ", change->path, " is transient or generated"); | |
400 | bus_error = BUS_ERROR_UNIT_GENERATED; | |
401 | break; | |
402 | ||
403 | case -ETXTBSY: | |
404 | m = strjoin("File '", change->path, "' is under the systemd unit hierarchy already"); | |
405 | bus_error = BUS_ERROR_UNIT_BAD_PATH; | |
406 | break; | |
407 | ||
408 | case -EBADSLT: | |
409 | m = strjoin("Invalid specifier in unit ", change->path); | |
410 | bus_error = BUS_ERROR_BAD_UNIT_SETTING; | |
411 | break; | |
412 | ||
413 | case -EIDRM: | |
414 | m = strjoin("Refusing to operate on template unit ", change->source, | |
415 | " when destination unit ", change->path, " is a non-template unit"); | |
416 | bus_error = BUS_ERROR_BAD_UNIT_SETTING; | |
417 | break; | |
418 | ||
419 | case -EUCLEAN: | |
420 | m = strjoin("Invalid unit name ", change->path); | |
421 | bus_error = BUS_ERROR_BAD_UNIT_SETTING; | |
422 | break; | |
423 | ||
424 | case -ELOOP: | |
425 | m = strjoin("Refusing to operate on linked unit file ", change->path); | |
426 | bus_error = BUS_ERROR_UNIT_LINKED; | |
427 | break; | |
428 | ||
429 | case -EXDEV: | |
430 | if (change->source) | |
431 | m = strjoin("Cannot alias ", change->source, " as ", change->path); | |
432 | else | |
433 | m = strjoin("Invalid unit reference ", change->path); | |
434 | bus_error = BUS_ERROR_BAD_UNIT_SETTING; | |
435 | break; | |
436 | ||
437 | case -ENOENT: | |
438 | m = strjoin("Unit ", change->path, " does not exist"); | |
439 | bus_error = BUS_ERROR_NO_SUCH_UNIT; | |
440 | break; | |
441 | ||
a4f0e0da ZJS |
442 | case -ENOLINK: |
443 | m = strjoin("Unit ", change->path, " is an unresolvable alias"); | |
444 | bus_error = BUS_ERROR_NO_SUCH_UNIT; | |
445 | break; | |
446 | ||
d41f08bd MY |
447 | case -EUNATCH: |
448 | m = strjoin("Cannot resolve specifiers in unit ", change->path); | |
449 | bus_error = BUS_ERROR_BAD_UNIT_SETTING; | |
450 | break; | |
451 | ||
452 | default: | |
453 | return change->type; | |
454 | } | |
455 | if (!m) | |
456 | return -ENOMEM; | |
457 | ||
458 | *ret_errmsg = m; | |
459 | if (ret_bus_error) | |
460 | *ret_bus_error = bus_error; | |
461 | ||
462 | return 0; | |
463 | } | |
464 | ||
465 | void install_changes_dump( | |
466 | int error, | |
467 | const char *verb, | |
468 | const InstallChange *changes, | |
469 | size_t n_changes, | |
470 | bool quiet) { | |
471 | ||
472 | bool err_logged = false; | |
473 | int r; | |
474 | ||
475 | /* If verb is not specified, errors are not allowed! */ | |
476 | assert(verb || error >= 0); | |
477 | assert(changes || n_changes == 0); | |
478 | ||
479 | FOREACH_ARRAY(i, changes, n_changes) | |
480 | if (i->type >= 0) { | |
3aa96361 | 481 | if (!quiet) |
d41f08bd MY |
482 | install_change_dump_success(i); |
483 | } else { | |
484 | _cleanup_free_ char *err_message = NULL; | |
485 | ||
486 | assert(verb); | |
487 | ||
488 | r = install_change_dump_error(i, &err_message, /* ret_bus_error = */ NULL); | |
489 | if (r == -ENOMEM) | |
490 | return (void) log_oom(); | |
491 | if (r < 0) | |
492 | log_error_errno(r, "Failed to %s unit %s: %m", verb, i->path); | |
cbfdbffb | 493 | else |
d41f08bd MY |
494 | log_error_errno(i->type, "Failed to %s unit: %s", verb, err_message); |
495 | ||
496 | err_logged = true; | |
af3d8113 | 497 | } |
af3d8113 | 498 | |
d41f08bd MY |
499 | if (error < 0 && !err_logged) |
500 | log_error_errno(error, "Failed to %s unit: %m.", verb); | |
af3d8113 ZJS |
501 | } |
502 | ||
25ea9277 | 503 | /** |
3fc53351 ZJS |
504 | * Checks if two symlink targets (starting from src) are equivalent as far as the unit enablement logic is |
505 | * concerned. If the target is in the unit search path, then anything with the same name is equivalent. | |
506 | * If outside the unit search path, paths must be identical. | |
25ea9277 | 507 | */ |
3fc53351 ZJS |
508 | static int chroot_unit_symlinks_equivalent( |
509 | const LookupPaths *lp, | |
510 | const char *src, | |
511 | const char *target_a, | |
512 | const char *target_b) { | |
513 | ||
514 | assert(lp); | |
515 | assert(src); | |
516 | assert(target_a); | |
517 | assert(target_b); | |
25ea9277 ZJS |
518 | |
519 | /* This will give incorrect results if the paths are relative and go outside | |
520 | * of the chroot. False negatives are possible. */ | |
521 | ||
3fc53351 ZJS |
522 | const char *root = lp->root_dir ?: "/"; |
523 | _cleanup_free_ char *dirname = NULL; | |
524 | int r; | |
525 | ||
526 | if (!path_is_absolute(target_a) || !path_is_absolute(target_b)) { | |
527 | r = path_extract_directory(src, &dirname); | |
528 | if (r < 0) | |
529 | return r; | |
530 | } | |
531 | ||
532 | _cleanup_free_ char *a = path_join(path_is_absolute(target_a) ? root : dirname, target_a); | |
533 | _cleanup_free_ char *b = path_join(path_is_absolute(target_b) ? root : dirname, target_b); | |
534 | if (!a || !b) | |
535 | return log_oom(); | |
ae9efab7 | 536 | |
563e6846 | 537 | r = path_equal_or_inode_same(a, b, 0); |
3fc53351 ZJS |
538 | if (r != 0) |
539 | return r; | |
540 | ||
541 | _cleanup_free_ char *a_name = NULL, *b_name = NULL; | |
542 | r = path_extract_filename(a, &a_name); | |
543 | if (r < 0) | |
544 | return r; | |
545 | r = path_extract_filename(b, &b_name); | |
546 | if (r < 0) | |
547 | return r; | |
548 | ||
549 | return streq(a_name, b_name) && | |
550 | path_startswith_strv(a, lp->search_path) && | |
551 | path_startswith_strv(b, lp->search_path); | |
25ea9277 ZJS |
552 | } |
553 | ||
0ec0deaa | 554 | static int create_symlink( |
c3e7fba0 | 555 | const LookupPaths *lp, |
0ec0deaa LP |
556 | const char *old_path, |
557 | const char *new_path, | |
558 | bool force, | |
cd44ec5a | 559 | InstallChange **changes, |
da6053d0 | 560 | size_t *n_changes) { |
0ec0deaa | 561 | |
3fc53351 | 562 | _cleanup_free_ char *dest = NULL; |
60bec8e4 | 563 | const char *rp; |
0ec0deaa LP |
564 | int r; |
565 | ||
566 | assert(old_path); | |
567 | assert(new_path); | |
568 | ||
c3e7fba0 | 569 | rp = skip_root(lp->root_dir, old_path); |
60bec8e4 ZJS |
570 | if (rp) |
571 | old_path = rp; | |
572 | ||
4f5c2485 ZJS |
573 | /* Actually create a symlink, and remember that we did. This function is |
574 | * smart enough to check if there's already a valid symlink in place. | |
85158303 | 575 | * |
4f5c2485 ZJS |
576 | * Returns 1 if a symlink was created or already exists and points to the |
577 | * right place, or negative on error. | |
85158303 | 578 | */ |
0ec0deaa | 579 | |
35cd0ba5 | 580 | (void) mkdir_parents_label(new_path, 0755); |
0ec0deaa LP |
581 | |
582 | if (symlink(old_path, new_path) >= 0) { | |
f31f10a6 ZJS |
583 | r = install_changes_add(changes, n_changes, INSTALL_CHANGE_SYMLINK, new_path, old_path); |
584 | if (r < 0) | |
585 | return r; | |
3de15214 | 586 | return 1; |
0ec0deaa LP |
587 | } |
588 | ||
94e7298d ZJS |
589 | if (errno != EEXIST) |
590 | return install_changes_add(changes, n_changes, -errno, new_path, NULL); | |
0ec0deaa LP |
591 | |
592 | r = readlink_malloc(new_path, &dest); | |
7d782f26 ZJS |
593 | if (r < 0) { |
594 | /* translate EINVAL (non-symlink exists) to EEXIST */ | |
595 | if (r == -EINVAL) | |
596 | r = -EEXIST; | |
597 | ||
94e7298d | 598 | return install_changes_add(changes, n_changes, r, new_path, NULL); |
7d782f26 | 599 | } |
0ec0deaa | 600 | |
3fc53351 | 601 | if (chroot_unit_symlinks_equivalent(lp, new_path, dest, old_path)) { |
e2341b6b | 602 | log_debug("Symlink %s %s %s already exists", |
1ae9b0cf | 603 | new_path, glyph(GLYPH_ARROW_RIGHT), dest); |
85158303 | 604 | return 1; |
3e8d06d9 | 605 | } |
0ec0deaa | 606 | |
94e7298d ZJS |
607 | if (!force) |
608 | return install_changes_add(changes, n_changes, -EEXIST, new_path, dest); | |
0ec0deaa LP |
609 | |
610 | r = symlink_atomic(old_path, new_path); | |
94e7298d ZJS |
611 | if (r < 0) |
612 | return install_changes_add(changes, n_changes, r, new_path, NULL); | |
0ec0deaa | 613 | |
f31f10a6 ZJS |
614 | r = install_changes_add(changes, n_changes, INSTALL_CHANGE_UNLINK, new_path, NULL); |
615 | if (r < 0) | |
616 | return r; | |
617 | r = install_changes_add(changes, n_changes, INSTALL_CHANGE_SYMLINK, new_path, old_path); | |
618 | if (r < 0) | |
619 | return r; | |
0ec0deaa | 620 | |
3de15214 | 621 | return 1; |
0ec0deaa LP |
622 | } |
623 | ||
83096483 LP |
624 | static int mark_symlink_for_removal( |
625 | Set **remove_symlinks_to, | |
626 | const char *p) { | |
627 | ||
628 | char *n; | |
629 | int r; | |
630 | ||
631 | assert(p); | |
632 | ||
8d190e99 | 633 | r = set_ensure_allocated(remove_symlinks_to, &path_hash_ops_free); |
83096483 LP |
634 | if (r < 0) |
635 | return r; | |
636 | ||
cf3d95b2 YW |
637 | r = path_simplify_alloc(p, &n); |
638 | if (r < 0) | |
639 | return r; | |
83096483 | 640 | |
ef42202a | 641 | r = set_consume(*remove_symlinks_to, n); |
d25e100b LP |
642 | if (r == -EEXIST) |
643 | return 0; | |
ef42202a | 644 | if (r < 0) |
d25e100b | 645 | return r; |
83096483 | 646 | |
0ec0deaa | 647 | return 1; |
83096483 LP |
648 | } |
649 | ||
650 | static int remove_marked_symlinks_fd( | |
651 | Set *remove_symlinks_to, | |
652 | int fd, | |
653 | const char *path, | |
654 | const char *config_path, | |
401017e0 | 655 | const LookupPaths *lp, |
3b3557c4 | 656 | bool dry_run, |
0ec0deaa | 657 | bool *restart, |
cd44ec5a | 658 | InstallChange **changes, |
da6053d0 | 659 | size_t *n_changes) { |
83096483 | 660 | |
7fd1b19b | 661 | _cleanup_closedir_ DIR *d = NULL; |
1d2e1cad | 662 | int r, ret = 0; |
83096483 LP |
663 | |
664 | assert(remove_symlinks_to); | |
665 | assert(fd >= 0); | |
666 | assert(path); | |
667 | assert(config_path); | |
401017e0 | 668 | assert(lp); |
0ec0deaa | 669 | assert(restart); |
83096483 LP |
670 | |
671 | d = fdopendir(fd); | |
672 | if (!d) { | |
03e334a1 | 673 | safe_close(fd); |
83096483 LP |
674 | return -errno; |
675 | } | |
676 | ||
677 | rewinddir(d); | |
678 | ||
06693181 | 679 | FOREACH_DIRENT(de, d, return -errno) |
83096483 | 680 | if (de->d_type == DT_DIR) { |
1d2e1cad | 681 | _cleanup_close_ int nfd = -EBADF; |
7fd1b19b | 682 | _cleanup_free_ char *p = NULL; |
83096483 | 683 | |
1d2e1cad | 684 | nfd = RET_NERRNO(openat(fd, de->d_name, O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW)); |
83096483 | 685 | if (nfd < 0) { |
1d2e1cad MY |
686 | if (nfd != -ENOENT) |
687 | RET_GATHER(ret, nfd); | |
83096483 LP |
688 | continue; |
689 | } | |
690 | ||
691 | p = path_make_absolute(de->d_name, path); | |
1d2e1cad | 692 | if (!p) |
d9e5e694 | 693 | return -ENOMEM; |
83096483 LP |
694 | |
695 | /* This will close nfd, regardless whether it succeeds or not */ | |
1d2e1cad MY |
696 | RET_GATHER(ret, remove_marked_symlinks_fd(remove_symlinks_to, |
697 | TAKE_FD(nfd), p, | |
698 | config_path, lp, | |
699 | dry_run, | |
700 | restart, | |
701 | changes, n_changes)); | |
83096483 LP |
702 | |
703 | } else if (de->d_type == DT_LNK) { | |
7a6c73da | 704 | _cleanup_free_ char *p = NULL; |
83096483 LP |
705 | bool found; |
706 | ||
7410616c | 707 | if (!unit_name_is_valid(de->d_name, UNIT_NAME_ANY)) |
bcafe923 LP |
708 | continue; |
709 | ||
83096483 | 710 | p = path_make_absolute(de->d_name, path); |
d9e5e694 ZJS |
711 | if (!p) |
712 | return -ENOMEM; | |
4ff361cc | 713 | path_simplify(p); |
83096483 | 714 | |
7a6c73da | 715 | /* We remove all links pointing to a file or path that is marked, as well as all |
9f61c9f7 ZJS |
716 | * files sharing the same name as a file that is marked, and files sharing the same |
717 | * name after the instance has been removed. Do path chasing only if we don't already | |
718 | * know that we want to remove the symlink. */ | |
7a6c73da | 719 | found = set_contains(remove_symlinks_to, de->d_name); |
212a24f0 | 720 | |
7a6c73da | 721 | if (!found) { |
9f61c9f7 ZJS |
722 | _cleanup_free_ char *template = NULL; |
723 | ||
1d2e1cad MY |
724 | r = unit_name_template(de->d_name, &template); |
725 | if (r < 0 && r != -EINVAL) | |
726 | return r; | |
727 | if (r >= 0) | |
9f61c9f7 ZJS |
728 | found = set_contains(remove_symlinks_to, template); |
729 | } | |
7a6c73da | 730 | |
9f61c9f7 | 731 | if (!found) { |
1d2e1cad | 732 | _cleanup_free_ char *dest = NULL, *dest_name = NULL; |
7a6c73da | 733 | |
1d2e1cad MY |
734 | r = chase(p, lp->root_dir, CHASE_NONEXISTENT, &dest, NULL); |
735 | if (r == -ENOENT) | |
7a6c73da | 736 | continue; |
1d2e1cad MY |
737 | if (r < 0) { |
738 | log_debug_errno(r, "Failed to resolve symlink \"%s\": %m", p); | |
739 | RET_GATHER(ret, install_changes_add(changes, n_changes, r, p, NULL)); | |
7a6c73da ZJS |
740 | continue; |
741 | } | |
742 | ||
1d2e1cad MY |
743 | r = path_extract_filename(dest, &dest_name); |
744 | if (r < 0) | |
745 | return r; | |
7a6c73da | 746 | |
1d2e1cad MY |
747 | found = set_contains(remove_symlinks_to, dest) || |
748 | set_contains(remove_symlinks_to, dest_name); | |
7a6c73da | 749 | } |
0ec0deaa | 750 | |
1dacfd2a LP |
751 | if (!found) |
752 | continue; | |
83096483 | 753 | |
3b3557c4 JS |
754 | if (!dry_run) { |
755 | if (unlinkat(fd, de->d_name, 0) < 0 && errno != ENOENT) { | |
1d2e1cad | 756 | RET_GATHER(ret, install_changes_add(changes, n_changes, -errno, p, NULL)); |
3b3557c4 JS |
757 | continue; |
758 | } | |
bcafe923 | 759 | |
3b3557c4 JS |
760 | (void) rmdir_parents(p, config_path); |
761 | } | |
83096483 | 762 | |
1d2e1cad MY |
763 | r = install_changes_add(changes, n_changes, INSTALL_CHANGE_UNLINK, p, NULL); |
764 | if (r < 0) | |
765 | return r; | |
1dacfd2a | 766 | |
12bf0ae4 ZJS |
767 | /* Now, remember the full path (but with the root prefix removed) of |
768 | * the symlink we just removed, and remove any symlinks to it, too. */ | |
401017e0 | 769 | |
7a6c73da | 770 | const char *rp = skip_root(lp->root_dir, p); |
1d2e1cad MY |
771 | r = mark_symlink_for_removal(&remove_symlinks_to, rp ?: p); |
772 | if (r < 0) | |
773 | return r; | |
774 | if (r > 0 && !dry_run) | |
0ec0deaa | 775 | *restart = true; |
83096483 | 776 | } |
83096483 | 777 | |
1d2e1cad | 778 | return ret; |
83096483 LP |
779 | } |
780 | ||
781 | static int remove_marked_symlinks( | |
782 | Set *remove_symlinks_to, | |
783 | const char *config_path, | |
401017e0 | 784 | const LookupPaths *lp, |
3b3557c4 | 785 | bool dry_run, |
cd44ec5a | 786 | InstallChange **changes, |
da6053d0 | 787 | size_t *n_changes) { |
83096483 | 788 | |
254d1313 | 789 | _cleanup_close_ int fd = -EBADF; |
0ec0deaa | 790 | bool restart; |
d25e100b | 791 | int r = 0; |
83096483 LP |
792 | |
793 | assert(config_path); | |
401017e0 | 794 | assert(lp); |
83096483 | 795 | |
43127aeb | 796 | if (set_isempty(remove_symlinks_to)) |
83096483 LP |
797 | return 0; |
798 | ||
67852d08 | 799 | fd = open(config_path, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC); |
83096483 | 800 | if (fd < 0) |
32d9493e | 801 | return errno == ENOENT ? 0 : -errno; |
83096483 LP |
802 | |
803 | do { | |
1d2e1cad | 804 | int cfd; |
0ec0deaa | 805 | restart = false; |
83096483 | 806 | |
ead34950 | 807 | cfd = fcntl(fd, F_DUPFD_CLOEXEC, 3); |
d25e100b LP |
808 | if (cfd < 0) |
809 | return -errno; | |
83096483 LP |
810 | |
811 | /* This takes possession of cfd and closes it */ | |
1d2e1cad MY |
812 | RET_GATHER(r, remove_marked_symlinks_fd(remove_symlinks_to, |
813 | cfd, config_path, | |
814 | config_path, lp, | |
815 | dry_run, | |
816 | &restart, | |
817 | changes, n_changes)); | |
0ec0deaa | 818 | } while (restart); |
83096483 | 819 | |
83096483 LP |
820 | return r; |
821 | } | |
822 | ||
0047d54d | 823 | static int is_symlink_with_known_name(const InstallInfo *i, const char *name) { |
5cd8ae31 ZJS |
824 | int r; |
825 | ||
df152dbb MY |
826 | assert(i); |
827 | assert(name); | |
828 | ||
5cd8ae31 ZJS |
829 | if (streq(name, i->name)) |
830 | return true; | |
831 | ||
832 | if (strv_contains(i->aliases, name)) | |
833 | return true; | |
834 | ||
835 | /* Look for template symlink matching DefaultInstance */ | |
836 | if (i->default_instance && unit_name_is_valid(i->name, UNIT_NAME_TEMPLATE)) { | |
837 | _cleanup_free_ char *s = NULL; | |
838 | ||
839 | r = unit_name_replace_instance(i->name, i->default_instance, &s); | |
840 | if (r < 0) { | |
841 | if (r != -EINVAL) | |
842 | return r; | |
843 | ||
844 | } else if (streq(name, s)) | |
845 | return true; | |
846 | } | |
847 | ||
848 | return false; | |
849 | } | |
850 | ||
43b4e305 MS |
851 | static int find_symlinks_in_directory( |
852 | DIR *dir, | |
853 | const char *dir_path, | |
0ec0deaa | 854 | const char *root_dir, |
0047d54d | 855 | const InstallInfo *info, |
466f6979 ZJS |
856 | bool ignore_destination, |
857 | bool match_name, | |
4b37c89f | 858 | bool ignore_same_name, |
83096483 LP |
859 | const char *config_path, |
860 | bool *same_name_link) { | |
861 | ||
df152dbb MY |
862 | int r, ret = 0; |
863 | ||
864 | assert(dir); | |
865 | assert(dir_path); | |
866 | assert(info); | |
867 | assert(unit_name_is_valid(info->name, UNIT_NAME_ANY)); | |
868 | assert(config_path); | |
869 | assert(same_name_link); | |
83096483 | 870 | |
43b4e305 | 871 | FOREACH_DIRENT(de, dir, return -errno) { |
466f6979 | 872 | bool found_path = false, found_dest = false, b = false; |
83096483 | 873 | |
43b4e305 MS |
874 | if (de->d_type != DT_LNK) |
875 | continue; | |
83096483 | 876 | |
466f6979 ZJS |
877 | if (!ignore_destination) { |
878 | _cleanup_free_ char *dest = NULL; | |
879 | ||
880 | /* Acquire symlink destination */ | |
df152dbb MY |
881 | r = readlinkat_malloc(dirfd(dir), de->d_name, &dest); |
882 | if (r < 0) { | |
883 | if (r != -ENOENT) | |
884 | RET_GATHER(ret, r); | |
466f6979 ZJS |
885 | continue; |
886 | } | |
83096483 | 887 | |
466f6979 | 888 | /* Check if what the symlink points to matches what we are looking for */ |
df152dbb | 889 | found_dest = path_equal_filename(dest, info->name); |
43b4e305 | 890 | } |
83096483 | 891 | |
466f6979 ZJS |
892 | /* Check if the symlink itself matches what we are looking for. |
893 | * | |
894 | * If ignore_destination is specified, we only look at the source name. | |
895 | * | |
896 | * If ignore_same_name is specified, we are in one of the directories which | |
897 | * have lower priority than the unit file, and even if a file or symlink with | |
898 | * this name was found, we should ignore it. */ | |
899 | ||
900 | if (ignore_destination || !ignore_same_name) | |
901 | found_path = streq(de->d_name, info->name); | |
902 | ||
903 | if (!found_path && ignore_destination) { | |
904 | _cleanup_free_ char *template = NULL; | |
905 | ||
df152dbb MY |
906 | r = unit_name_template(de->d_name, &template); |
907 | if (r < 0 && r != -EINVAL) | |
908 | return r; | |
909 | if (r >= 0) | |
466f6979 ZJS |
910 | found_dest = streq(template, info->name); |
911 | } | |
0ec0deaa | 912 | |
43b4e305 MS |
913 | if (found_path && found_dest) { |
914 | _cleanup_free_ char *p = NULL, *t = NULL; | |
0ec0deaa | 915 | |
466f6979 | 916 | /* Filter out same name links in the main config path */ |
43b4e305 | 917 | p = path_make_absolute(de->d_name, dir_path); |
4a84db4c | 918 | t = path_make_absolute(info->name, config_path); |
43b4e305 MS |
919 | if (!p || !t) |
920 | return -ENOMEM; | |
83096483 | 921 | |
43b4e305 MS |
922 | b = path_equal(p, t); |
923 | } | |
83096483 | 924 | |
43b4e305 MS |
925 | if (b) |
926 | *same_name_link = true; | |
927 | else if (found_path || found_dest) { | |
466f6979 | 928 | if (!match_name) |
43b4e305 | 929 | return 1; |
83096483 | 930 | |
43b4e305 | 931 | /* Check if symlink name is in the set of names used by [Install] */ |
df152dbb MY |
932 | r = is_symlink_with_known_name(info, de->d_name); |
933 | if (r != 0) | |
934 | return r; | |
83096483 LP |
935 | } |
936 | } | |
d25e100b | 937 | |
df152dbb | 938 | return ret; |
83096483 LP |
939 | } |
940 | ||
941 | static int find_symlinks( | |
0ec0deaa | 942 | const char *root_dir, |
0047d54d | 943 | const InstallInfo *i, |
d9b4b48f | 944 | bool match_name, |
4b37c89f | 945 | bool ignore_same_name, |
83096483 LP |
946 | const char *config_path, |
947 | bool *same_name_link) { | |
948 | ||
43b4e305 | 949 | _cleanup_closedir_ DIR *config_dir = NULL; |
df152dbb | 950 | int r; |
83096483 | 951 | |
5cd8ae31 | 952 | assert(i); |
83096483 LP |
953 | assert(config_path); |
954 | assert(same_name_link); | |
955 | ||
43b4e305 MS |
956 | config_dir = opendir(config_path); |
957 | if (!config_dir) { | |
a1feacf7 | 958 | if (IN_SET(errno, ENOENT, ENOTDIR, EACCES)) |
d5891fda | 959 | return 0; |
83096483 | 960 | return -errno; |
d5891fda | 961 | } |
83096483 | 962 | |
43b4e305 MS |
963 | FOREACH_DIRENT(de, config_dir, return -errno) { |
964 | const char *suffix; | |
965 | _cleanup_free_ const char *path = NULL; | |
966 | _cleanup_closedir_ DIR *d = NULL; | |
967 | ||
43b4e305 MS |
968 | if (de->d_type != DT_DIR) |
969 | continue; | |
970 | ||
971 | suffix = strrchr(de->d_name, '.'); | |
38f90179 | 972 | if (!STRPTR_IN_SET(suffix, ".wants", ".requires", ".upholds")) |
43b4e305 MS |
973 | continue; |
974 | ||
975 | path = path_join(config_path, de->d_name); | |
976 | if (!path) | |
977 | return -ENOMEM; | |
978 | ||
979 | d = opendir(path); | |
980 | if (!d) { | |
e75a26d0 | 981 | log_error_errno(errno, "Failed to open directory \"%s\" while scanning for symlinks, ignoring: %m", path); |
43b4e305 MS |
982 | continue; |
983 | } | |
984 | ||
466f6979 ZJS |
985 | r = find_symlinks_in_directory(d, path, root_dir, i, |
986 | /* ignore_destination= */ true, | |
987 | /* match_name= */ match_name, | |
988 | /* ignore_same_name= */ ignore_same_name, | |
989 | config_path, | |
990 | same_name_link); | |
43b4e305 MS |
991 | if (r > 0) |
992 | return 1; | |
df152dbb | 993 | if (r < 0) |
e75a26d0 | 994 | log_debug_errno(r, "Failed to look up symlinks in \"%s\": %m", path); |
43b4e305 MS |
995 | } |
996 | ||
38f90179 MY |
997 | /* We didn't find any suitable symlinks in .wants, .requires or .upholds directories, |
998 | * let's look for linked unit files in this directory. */ | |
43b4e305 | 999 | rewinddir(config_dir); |
466f6979 ZJS |
1000 | return find_symlinks_in_directory(config_dir, config_path, root_dir, i, |
1001 | /* ignore_destination= */ false, | |
1002 | /* match_name= */ match_name, | |
1003 | /* ignore_same_name= */ ignore_same_name, | |
1004 | config_path, | |
1005 | same_name_link); | |
83096483 LP |
1006 | } |
1007 | ||
1008 | static int find_symlinks_in_scope( | |
4870133b | 1009 | RuntimeScope scope, |
c3e7fba0 | 1010 | const LookupPaths *lp, |
0047d54d | 1011 | const InstallInfo *info, |
d9b4b48f | 1012 | bool match_name, |
83096483 LP |
1013 | UnitFileState *state) { |
1014 | ||
dfead90d LP |
1015 | bool same_name_link_runtime = false, same_name_link_config = false; |
1016 | bool enabled_in_runtime = false, enabled_at_all = false; | |
4b37c89f | 1017 | bool ignore_same_name = false; |
0ec0deaa | 1018 | int r; |
83096483 | 1019 | |
c3e7fba0 | 1020 | assert(lp); |
4a84db4c | 1021 | assert(info); |
83096483 | 1022 | |
c3e7fba0 | 1023 | /* As we iterate over the list of search paths in lp->search_path, we may encounter "same name" |
4b37c89f | 1024 | * symlinks. The ones which are "below" (i.e. have lower priority) than the unit file itself are |
5238e957 | 1025 | * effectively masked, so we should ignore them. */ |
4b37c89f | 1026 | |
c3e7fba0 | 1027 | STRV_FOREACH(p, lp->search_path) { |
dfead90d LP |
1028 | bool same_name_link = false; |
1029 | ||
4a84db4c | 1030 | r = find_symlinks(lp->root_dir, info, match_name, ignore_same_name, *p, &same_name_link); |
dfead90d LP |
1031 | if (r < 0) |
1032 | return r; | |
1033 | if (r > 0) { | |
1034 | /* We found symlinks in this dir? Yay! Let's see where precisely it is enabled. */ | |
1035 | ||
1934242b | 1036 | if (path_equal(*p, lp->persistent_config)) { |
dfead90d LP |
1037 | /* This is the best outcome, let's return it immediately. */ |
1038 | *state = UNIT_FILE_ENABLED; | |
1039 | return 1; | |
1040 | } | |
1041 | ||
bb2682bc | 1042 | /* look for global enablement of user units */ |
4870133b | 1043 | if (scope == RUNTIME_SCOPE_USER && path_is_user_config_dir(*p)) { |
d2561cfd ZJS |
1044 | *state = UNIT_FILE_ENABLED; |
1045 | return 1; | |
1046 | } | |
1047 | ||
c3e7fba0 | 1048 | r = path_is_runtime(lp, *p, false); |
dfead90d LP |
1049 | if (r < 0) |
1050 | return r; | |
1051 | if (r > 0) | |
1052 | enabled_in_runtime = true; | |
1053 | else | |
1054 | enabled_at_all = true; | |
1055 | ||
1056 | } else if (same_name_link) { | |
1934242b | 1057 | if (path_equal(*p, lp->persistent_config)) |
dfead90d LP |
1058 | same_name_link_config = true; |
1059 | else { | |
c3e7fba0 | 1060 | r = path_is_runtime(lp, *p, false); |
dfead90d LP |
1061 | if (r < 0) |
1062 | return r; | |
1063 | if (r > 0) | |
1064 | same_name_link_runtime = true; | |
1065 | } | |
1066 | } | |
4b37c89f ZJS |
1067 | |
1068 | /* Check if next iteration will be "below" the unit file (either a regular file | |
1069 | * or a symlink), and hence should be ignored */ | |
4a84db4c | 1070 | if (!ignore_same_name && path_startswith(info->path, *p)) |
4b37c89f | 1071 | ignore_same_name = true; |
83096483 LP |
1072 | } |
1073 | ||
dfead90d | 1074 | if (enabled_in_runtime) { |
0ec0deaa | 1075 | *state = UNIT_FILE_ENABLED_RUNTIME; |
dfead90d LP |
1076 | return 1; |
1077 | } | |
1078 | ||
1079 | /* Here's a special rule: if the unit we are looking for is an instance, and it symlinked in the search path | |
1080 | * outside of runtime and configuration directory, then we consider it statically enabled. Note we do that only | |
1081 | * for instance, not for regular names, as those are merely aliases, while instances explicitly instantiate | |
1082 | * something, and hence are a much stronger concept. */ | |
4a84db4c | 1083 | if (enabled_at_all && unit_name_is_valid(info->name, UNIT_NAME_INSTANCE)) { |
dfead90d LP |
1084 | *state = UNIT_FILE_STATIC; |
1085 | return 1; | |
83096483 LP |
1086 | } |
1087 | ||
1088 | /* Hmm, we didn't find it, but maybe we found the same name | |
1089 | * link? */ | |
dfead90d | 1090 | if (same_name_link_config) { |
0ec0deaa LP |
1091 | *state = UNIT_FILE_LINKED; |
1092 | return 1; | |
1093 | } | |
83096483 LP |
1094 | if (same_name_link_runtime) { |
1095 | *state = UNIT_FILE_LINKED_RUNTIME; | |
1096 | return 1; | |
83096483 LP |
1097 | } |
1098 | ||
1099 | return 0; | |
1100 | } | |
1101 | ||
acb5b834 | 1102 | static void install_info_clear(InstallInfo *i) { |
0ec0deaa LP |
1103 | if (!i) |
1104 | return; | |
83096483 | 1105 | |
acb5b834 ZJS |
1106 | i->name = mfree(i->name); |
1107 | i->path = mfree(i->path); | |
1108 | i->root = mfree(i->root); | |
1109 | i->aliases = strv_free(i->aliases); | |
1110 | i->wanted_by = strv_free(i->wanted_by); | |
1111 | i->required_by = strv_free(i->required_by); | |
38f90179 | 1112 | i->upheld_by = strv_free(i->upheld_by); |
acb5b834 ZJS |
1113 | i->also = strv_free(i->also); |
1114 | i->default_instance = mfree(i->default_instance); | |
1115 | i->symlink_target = mfree(i->symlink_target); | |
0ec0deaa | 1116 | } |
83096483 | 1117 | |
acb5b834 ZJS |
1118 | static InstallInfo* install_info_free(InstallInfo *i) { |
1119 | install_info_clear(i); | |
1120 | return mfree(i); | |
1121 | } | |
1122 | ||
1123 | DEFINE_TRIVIAL_CLEANUP_FUNC(InstallInfo*, install_info_free); | |
1124 | ||
f9ae1f5c YW |
1125 | DEFINE_PRIVATE_HASH_OPS_WITH_VALUE_DESTRUCTOR( |
1126 | install_info_hash_ops, | |
1127 | char, string_hash_func, string_compare_func, | |
1128 | InstallInfo, install_info_free); | |
1129 | ||
4a84db4c ZJS |
1130 | static void install_context_done(InstallContext *ctx) { |
1131 | assert(ctx); | |
83096483 | 1132 | |
f9ae1f5c YW |
1133 | ctx->will_process = ordered_hashmap_free(ctx->will_process); |
1134 | ctx->have_processed = ordered_hashmap_free(ctx->have_processed); | |
0ec0deaa | 1135 | } |
83096483 | 1136 | |
0047d54d ZJS |
1137 | static InstallInfo *install_info_find(InstallContext *ctx, const char *name) { |
1138 | InstallInfo *i; | |
83096483 | 1139 | |
4a84db4c | 1140 | i = ordered_hashmap_get(ctx->have_processed, name); |
0ec0deaa LP |
1141 | if (i) |
1142 | return i; | |
83096483 | 1143 | |
4a84db4c | 1144 | return ordered_hashmap_get(ctx->will_process, name); |
83096483 LP |
1145 | } |
1146 | ||
af3d8113 | 1147 | static int install_info_may_process( |
0047d54d | 1148 | const InstallInfo *i, |
c3e7fba0 | 1149 | const LookupPaths *lp, |
cd44ec5a | 1150 | InstallChange **changes, |
da6053d0 | 1151 | size_t *n_changes) { |
76adb5b8 | 1152 | assert(i); |
c3e7fba0 | 1153 | assert(lp); |
76adb5b8 | 1154 | |
047d91f9 ZJS |
1155 | /* Checks whether the loaded unit file is one we should process, or is masked, |
1156 | * transient or generated and thus not subject to enable/disable operations. */ | |
76adb5b8 | 1157 | |
94e7298d ZJS |
1158 | if (i->install_mode == INSTALL_MODE_MASKED) |
1159 | return install_changes_add(changes, n_changes, -ERFKILL, i->path, NULL); | |
c3e7fba0 | 1160 | if (path_is_generator(lp, i->path) || |
94e7298d ZJS |
1161 | path_is_transient(lp, i->path)) |
1162 | return install_changes_add(changes, n_changes, -EADDRNOTAVAIL, i->path, NULL); | |
76adb5b8 LP |
1163 | |
1164 | return 0; | |
1165 | } | |
1166 | ||
ff56349d | 1167 | /** |
0047d54d | 1168 | * Adds a new InstallInfo entry under name in the InstallContext.will_process |
ff56349d | 1169 | * hashmap, or retrieves the existing one if already present. |
19539807 ZJS |
1170 | * |
1171 | * Returns negative on error, 0 if the unit was already known, 1 otherwise. | |
ff56349d | 1172 | */ |
83096483 | 1173 | static int install_info_add( |
4a84db4c | 1174 | InstallContext *ctx, |
83096483 | 1175 | const char *name, |
0ec0deaa | 1176 | const char *path, |
de61a04b | 1177 | const char *root, |
19539807 | 1178 | bool auxiliary, |
0047d54d | 1179 | InstallInfo **ret) { |
0ec0deaa | 1180 | |
1ac0056c | 1181 | _cleanup_free_ char *name_alloc = NULL; |
83096483 LP |
1182 | int r; |
1183 | ||
4a84db4c | 1184 | assert(ctx); |
83096483 | 1185 | |
08f46856 | 1186 | if (!name) { |
1ac0056c MY |
1187 | assert(path); |
1188 | ||
1189 | r = path_extract_filename(path, &name_alloc); | |
1190 | if (r < 0) | |
1191 | return r; | |
1192 | ||
1193 | name = name_alloc; | |
08f46856 | 1194 | } |
83096483 | 1195 | |
7410616c | 1196 | if (!unit_name_is_valid(name, UNIT_NAME_ANY)) |
83096483 LP |
1197 | return -EINVAL; |
1198 | ||
acb5b834 | 1199 | InstallInfo *i = install_info_find(ctx, name); |
0ec0deaa | 1200 | if (i) { |
19539807 ZJS |
1201 | i->auxiliary = i->auxiliary && auxiliary; |
1202 | ||
0ec0deaa LP |
1203 | if (ret) |
1204 | *ret = i; | |
83096483 | 1205 | return 0; |
0ec0deaa | 1206 | } |
83096483 | 1207 | |
1ac0056c MY |
1208 | _cleanup_(install_info_freep) InstallInfo *new_info = new(InstallInfo, 1); |
1209 | if (!new_info) | |
83096483 | 1210 | return -ENOMEM; |
d23aeead | 1211 | |
1ac0056c | 1212 | *new_info = (InstallInfo) { |
91810c8f | 1213 | .install_mode = _INSTALL_MODE_INVALID, |
d23aeead LP |
1214 | .auxiliary = auxiliary, |
1215 | }; | |
83096483 | 1216 | |
1ac0056c MY |
1217 | if (name_alloc) |
1218 | new_info->name = TAKE_PTR(name_alloc); | |
1219 | else { | |
1220 | new_info->name = strdup(name); | |
1221 | if (!new_info->name) | |
acb5b834 | 1222 | return -ENOMEM; |
de61a04b LP |
1223 | } |
1224 | ||
1ac0056c MY |
1225 | r = strdup_to(&new_info->root, root); |
1226 | if (r < 0) | |
1227 | return r; | |
1228 | ||
1229 | r = strdup_to(&new_info->path, path); | |
1230 | if (r < 0) | |
1231 | return r; | |
83096483 | 1232 | |
f9ae1f5c | 1233 | r = ordered_hashmap_ensure_put(&ctx->will_process, &install_info_hash_ops, new_info->name, new_info); |
83096483 | 1234 | if (r < 0) |
acb5b834 | 1235 | return r; |
1ac0056c | 1236 | i = TAKE_PTR(new_info); |
83096483 | 1237 | |
0ec0deaa LP |
1238 | if (ret) |
1239 | *ret = i; | |
19539807 | 1240 | return 1; |
83096483 LP |
1241 | } |
1242 | ||
a7724589 ZJS |
1243 | static int config_parse_alias( |
1244 | const char *unit, | |
1245 | const char *filename, | |
1246 | unsigned line, | |
1247 | const char *section, | |
1248 | unsigned section_line, | |
1249 | const char *lvalue, | |
1250 | int ltype, | |
1251 | const char *rvalue, | |
1252 | void *data, | |
1253 | void *userdata) { | |
1254 | ||
a7724589 ZJS |
1255 | UnitType type; |
1256 | ||
142468d8 | 1257 | assert(unit); |
a7724589 ZJS |
1258 | assert(filename); |
1259 | assert(lvalue); | |
1260 | assert(rvalue); | |
1261 | ||
142468d8 | 1262 | type = unit_name_to_type(unit); |
a7724589 ZJS |
1263 | if (!unit_type_may_alias(type)) |
1264 | return log_syntax(unit, LOG_WARNING, filename, line, 0, | |
3b8769bd | 1265 | "Alias= is not allowed for %s units, ignoring.", |
a7724589 ZJS |
1266 | unit_type_to_string(type)); |
1267 | ||
1268 | return config_parse_strv(unit, filename, line, section, section_line, | |
1269 | lvalue, ltype, rvalue, data, userdata); | |
1270 | } | |
1271 | ||
d54c4993 LP |
1272 | static int config_parse_also( |
1273 | const char *unit, | |
1274 | const char *filename, | |
1275 | unsigned line, | |
1276 | const char *section, | |
1277 | unsigned section_line, | |
1278 | const char *lvalue, | |
1279 | int ltype, | |
1280 | const char *rvalue, | |
1281 | void *data, | |
1282 | void *userdata) { | |
83096483 | 1283 | |
0047d54d | 1284 | InstallInfo *info = ASSERT_PTR(userdata); |
4a84db4c | 1285 | InstallContext *ctx = ASSERT_PTR(data); |
0ec0deaa | 1286 | int r; |
83096483 | 1287 | |
142468d8 | 1288 | assert(unit); |
83096483 LP |
1289 | assert(filename); |
1290 | assert(lvalue); | |
1291 | assert(rvalue); | |
1292 | ||
0ec0deaa | 1293 | for (;;) { |
a6612e65 | 1294 | _cleanup_free_ char *word = NULL, *printed = NULL; |
03da6513 | 1295 | |
0ec0deaa LP |
1296 | r = extract_first_word(&rvalue, &word, NULL, 0); |
1297 | if (r < 0) | |
1298 | return r; | |
03da6513 SS |
1299 | if (r == 0) |
1300 | break; | |
83096483 | 1301 | |
38e8a6c7 | 1302 | r = install_name_printf(ctx->scope, info, word, &printed); |
d9e5e694 | 1303 | if (r < 0) |
6ec4c852 ZJS |
1304 | return log_syntax(unit, LOG_WARNING, filename, line, r, |
1305 | "Failed to resolve unit name in Also=\"%s\": %m", word); | |
aedd4012 | 1306 | |
4a84db4c | 1307 | r = install_info_add(ctx, printed, NULL, info->root, /* auxiliary= */ true, NULL); |
d9e5e694 | 1308 | if (r < 0) |
83096483 | 1309 | return r; |
aedd4012 | 1310 | |
a6612e65 | 1311 | r = strv_push(&info->also, printed); |
aedd4012 JS |
1312 | if (r < 0) |
1313 | return r; | |
0ec0deaa | 1314 | |
a6612e65 | 1315 | printed = NULL; |
83096483 LP |
1316 | } |
1317 | ||
1318 | return 0; | |
1319 | } | |
1320 | ||
d54c4993 LP |
1321 | static int config_parse_default_instance( |
1322 | const char *unit, | |
1323 | const char *filename, | |
1324 | unsigned line, | |
1325 | const char *section, | |
1326 | unsigned section_line, | |
1327 | const char *lvalue, | |
1328 | int ltype, | |
1329 | const char *rvalue, | |
1330 | void *data, | |
1331 | void *userdata) { | |
1332 | ||
172e9cc3 | 1333 | InstallContext *ctx = ASSERT_PTR(data); |
0047d54d | 1334 | InstallInfo *info = ASSERT_PTR(userdata); |
d7604756 | 1335 | _cleanup_free_ char *printed = NULL; |
d54c4993 LP |
1336 | int r; |
1337 | ||
142468d8 | 1338 | assert(unit); |
d54c4993 LP |
1339 | assert(filename); |
1340 | assert(lvalue); | |
1341 | assert(rvalue); | |
1342 | ||
142468d8 | 1343 | if (unit_name_is_valid(unit, UNIT_NAME_INSTANCE)) |
6597fa61 ZJS |
1344 | /* When enabling an instance, we might be using a template unit file, |
1345 | * but we should ignore DefaultInstance silently. */ | |
1346 | return 0; | |
142468d8 | 1347 | if (!unit_name_is_valid(unit, UNIT_NAME_TEMPLATE)) |
6597fa61 | 1348 | return log_syntax(unit, LOG_WARNING, filename, line, 0, |
10d67460 | 1349 | "DefaultInstance= only makes sense for template units, ignoring."); |
6597fa61 | 1350 | |
38e8a6c7 | 1351 | r = install_name_printf(ctx->scope, info, rvalue, &printed); |
d54c4993 | 1352 | if (r < 0) |
6ec4c852 ZJS |
1353 | return log_syntax(unit, LOG_WARNING, filename, line, r, |
1354 | "Failed to resolve instance name in DefaultInstance=\"%s\": %m", rvalue); | |
d54c4993 | 1355 | |
6ec4c852 ZJS |
1356 | if (isempty(printed)) |
1357 | printed = mfree(printed); | |
b5395600 | 1358 | |
6ec4c852 | 1359 | if (printed && !unit_instance_is_valid(printed)) |
e5171296 ZJS |
1360 | return log_syntax(unit, LOG_WARNING, filename, line, SYNTHETIC_ERRNO(EINVAL), |
1361 | "Invalid DefaultInstance= value \"%s\".", printed); | |
d54c4993 | 1362 | |
4a84db4c | 1363 | return free_and_replace(info->default_instance, printed); |
d54c4993 LP |
1364 | } |
1365 | ||
83096483 | 1366 | static int unit_file_load( |
4a84db4c | 1367 | InstallContext *ctx, |
0047d54d | 1368 | InstallInfo *info, |
83096483 | 1369 | const char *path, |
d04a9386 | 1370 | const char *root_dir, |
0ec0deaa | 1371 | SearchFlags flags) { |
83096483 | 1372 | |
f975e971 | 1373 | const ConfigTableItem items[] = { |
a7724589 | 1374 | { "Install", "Alias", config_parse_alias, 0, &info->aliases }, |
d54c4993 LP |
1375 | { "Install", "WantedBy", config_parse_strv, 0, &info->wanted_by }, |
1376 | { "Install", "RequiredBy", config_parse_strv, 0, &info->required_by }, | |
38f90179 | 1377 | { "Install", "UpheldBy", config_parse_strv, 0, &info->upheld_by }, |
d54c4993 | 1378 | { "Install", "DefaultInstance", config_parse_default_instance, 0, info }, |
4a84db4c | 1379 | { "Install", "Also", config_parse_also, 0, ctx }, |
d54c4993 | 1380 | {} |
83096483 LP |
1381 | }; |
1382 | ||
133e5b36 | 1383 | UnitType type; |
7fd1b19b | 1384 | _cleanup_fclose_ FILE *f = NULL; |
254d1313 | 1385 | _cleanup_close_ int fd = -EBADF; |
0ec0deaa LP |
1386 | struct stat st; |
1387 | int r; | |
83096483 | 1388 | |
83096483 LP |
1389 | assert(info); |
1390 | assert(path); | |
1391 | ||
d04a9386 LP |
1392 | if (!(flags & SEARCH_DROPIN)) { |
1393 | /* Loading or checking for the main unit file… */ | |
133e5b36 | 1394 | |
d04a9386 LP |
1395 | type = unit_name_to_type(info->name); |
1396 | if (type < 0) | |
1397 | return -EINVAL; | |
baaa35ad ZJS |
1398 | if (unit_name_is_valid(info->name, UNIT_NAME_TEMPLATE|UNIT_NAME_INSTANCE) && !unit_type_may_template(type)) |
1399 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), | |
bce84e10 | 1400 | "%s: unit type %s cannot be templated, ignoring.", path, unit_type_to_string(type)); |
d04a9386 LP |
1401 | |
1402 | if (!(flags & SEARCH_LOAD)) { | |
4276749d | 1403 | if (lstat(path, &st) < 0) |
d04a9386 LP |
1404 | return -errno; |
1405 | ||
1406 | if (null_or_empty(&st)) | |
91810c8f | 1407 | info->install_mode = INSTALL_MODE_MASKED; |
d04a9386 | 1408 | else if (S_ISREG(st.st_mode)) |
91810c8f | 1409 | info->install_mode = INSTALL_MODE_REGULAR; |
d04a9386 LP |
1410 | else if (S_ISLNK(st.st_mode)) |
1411 | return -ELOOP; | |
1412 | else if (S_ISDIR(st.st_mode)) | |
1413 | return -EISDIR; | |
1414 | else | |
1415 | return -ENOTTY; | |
1416 | ||
1417 | return 0; | |
1418 | } | |
1419 | ||
1420 | fd = open(path, O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW); | |
1421 | if (fd < 0) | |
d25e100b | 1422 | return -errno; |
d04a9386 LP |
1423 | } else { |
1424 | /* 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 | 1425 | |
d04a9386 LP |
1426 | if (!(flags & SEARCH_LOAD)) |
1427 | return 0; | |
0ec0deaa | 1428 | |
f461a28d | 1429 | fd = chase_and_open(path, root_dir, 0, O_RDONLY|O_CLOEXEC|O_NOCTTY, NULL); |
d04a9386 LP |
1430 | if (fd < 0) |
1431 | return fd; | |
e94937df LN |
1432 | } |
1433 | ||
0ec0deaa LP |
1434 | if (fstat(fd, &st) < 0) |
1435 | return -errno; | |
d04a9386 | 1436 | |
0ec0deaa | 1437 | if (null_or_empty(&st)) { |
d04a9386 | 1438 | if ((flags & SEARCH_DROPIN) == 0) |
91810c8f | 1439 | info->install_mode = INSTALL_MODE_MASKED; |
d04a9386 | 1440 | |
0ec0deaa LP |
1441 | return 0; |
1442 | } | |
3cc44114 LP |
1443 | |
1444 | r = stat_verify_regular(&st); | |
1445 | if (r < 0) | |
1446 | return r; | |
83096483 | 1447 | |
4fa744a3 | 1448 | f = take_fdopen(&fd, "r"); |
0ec0deaa LP |
1449 | if (!f) |
1450 | return -errno; | |
83096483 | 1451 | |
4a84db4c ZJS |
1452 | /* ctx is only needed if we actually load the file (it's referenced from items[] btw, in case you wonder.) */ |
1453 | assert(ctx); | |
d04a9386 | 1454 | |
142468d8 | 1455 | r = config_parse(info->name, path, f, |
f4331d0d ZJS |
1456 | "Install\0" |
1457 | "-Unit\0" | |
1458 | "-Automount\0" | |
1459 | "-Device\0" | |
1460 | "-Mount\0" | |
1461 | "-Path\0" | |
1462 | "-Scope\0" | |
1463 | "-Service\0" | |
1464 | "-Slice\0" | |
1465 | "-Socket\0" | |
1466 | "-Swap\0" | |
1467 | "-Target\0" | |
1468 | "-Timer\0", | |
36f822c4 | 1469 | config_item_table_lookup, items, |
7ade8982 | 1470 | 0, info, |
4f9ff96a | 1471 | NULL); |
83096483 | 1472 | if (r < 0) |
e75a26d0 | 1473 | return log_debug_errno(r, "Failed to parse \"%s\": %m", info->name); |
83096483 | 1474 | |
d04a9386 | 1475 | if ((flags & SEARCH_DROPIN) == 0) |
91810c8f | 1476 | info->install_mode = INSTALL_MODE_REGULAR; |
aedd4012 | 1477 | |
78d54bd4 | 1478 | return |
693eb9a2 LP |
1479 | (int) strv_length(info->aliases) + |
1480 | (int) strv_length(info->wanted_by) + | |
38f90179 MY |
1481 | (int) strv_length(info->required_by) + |
1482 | (int) strv_length(info->upheld_by); | |
83096483 LP |
1483 | } |
1484 | ||
0ec0deaa | 1485 | static int unit_file_load_or_readlink( |
4a84db4c | 1486 | InstallContext *ctx, |
0047d54d | 1487 | InstallInfo *info, |
0ec0deaa | 1488 | const char *path, |
c3e7fba0 | 1489 | const LookupPaths *lp, |
0ec0deaa | 1490 | SearchFlags flags) { |
0ec0deaa LP |
1491 | int r; |
1492 | ||
4a84db4c | 1493 | r = unit_file_load(ctx, info, path, lp->root_dir, flags); |
d04a9386 | 1494 | if (r != -ELOOP || (flags & SEARCH_DROPIN)) |
0ec0deaa LP |
1495 | return r; |
1496 | ||
047d37dc ZJS |
1497 | /* This is a symlink, let's read and verify it. */ |
1498 | r = unit_file_resolve_symlink(lp->root_dir, lp->search_path, | |
1499 | NULL, AT_FDCWD, path, | |
1500 | true, &info->symlink_target); | |
1501 | if (r < 0) | |
1502 | return r; | |
48ed75ad | 1503 | bool outside_search_path = r > 0; |
4276749d | 1504 | |
047d37dc ZJS |
1505 | r = null_or_empty_path_with_root(info->symlink_target, lp->root_dir); |
1506 | if (r < 0 && r != -ENOENT) | |
1507 | return log_debug_errno(r, "Failed to stat %s: %m", info->symlink_target); | |
1508 | if (r > 0) | |
91810c8f | 1509 | info->install_mode = INSTALL_MODE_MASKED; |
48ed75ad | 1510 | else if (outside_search_path) |
91810c8f | 1511 | info->install_mode = INSTALL_MODE_LINKED; |
047d37dc | 1512 | else |
91810c8f | 1513 | info->install_mode = INSTALL_MODE_ALIAS; |
0ec0deaa LP |
1514 | |
1515 | return 0; | |
1516 | } | |
1517 | ||
83096483 | 1518 | static int unit_file_search( |
4a84db4c | 1519 | InstallContext *ctx, |
0047d54d | 1520 | InstallInfo *info, |
c3e7fba0 | 1521 | const LookupPaths *lp, |
0ec0deaa | 1522 | SearchFlags flags) { |
83096483 | 1523 | |
d04a9386 LP |
1524 | const char *dropin_dir_name = NULL, *dropin_template_dir_name = NULL; |
1525 | _cleanup_strv_free_ char **dirs = NULL, **files = NULL; | |
64f9280e | 1526 | _cleanup_free_ char *template = NULL; |
142468d8 | 1527 | bool found_unit = false; |
d04a9386 | 1528 | int r, result; |
83096483 | 1529 | |
83096483 | 1530 | assert(info); |
c3e7fba0 | 1531 | assert(lp); |
83096483 | 1532 | |
0ec0deaa | 1533 | /* Was this unit already loaded? */ |
91810c8f | 1534 | if (info->install_mode != _INSTALL_MODE_INVALID) |
0ec0deaa LP |
1535 | return 0; |
1536 | ||
278fa575 | 1537 | if (info->path) |
4a84db4c | 1538 | return unit_file_load_or_readlink(ctx, info, info->path, lp, flags); |
83096483 LP |
1539 | |
1540 | assert(info->name); | |
1541 | ||
142468d8 JL |
1542 | if (unit_name_is_valid(info->name, UNIT_NAME_INSTANCE)) { |
1543 | r = unit_name_template(info->name, &template); | |
1544 | if (r < 0) | |
1545 | return r; | |
1546 | } | |
1547 | ||
c3e7fba0 | 1548 | STRV_FOREACH(p, lp->search_path) { |
e50bd775 | 1549 | _cleanup_free_ char *path = NULL; |
83096483 | 1550 | |
657ee2d8 | 1551 | path = path_join(*p, info->name); |
83096483 LP |
1552 | if (!path) |
1553 | return -ENOMEM; | |
1554 | ||
4a84db4c | 1555 | r = unit_file_load_or_readlink(ctx, info, path, lp, flags); |
0155928c | 1556 | if (r >= 0) { |
ae2a15bc | 1557 | info->path = TAKE_PTR(path); |
142468d8 JL |
1558 | result = r; |
1559 | found_unit = true; | |
1560 | break; | |
a1feacf7 | 1561 | } else if (!IN_SET(r, -ENOENT, -ENOTDIR, -EACCES)) |
0155928c | 1562 | return r; |
e50bd775 | 1563 | } |
62b00233 | 1564 | |
142468d8 JL |
1565 | if (!found_unit && template) { |
1566 | ||
e50bd775 LP |
1567 | /* Unit file doesn't exist, however instance |
1568 | * enablement was requested. We will check if it is | |
1569 | * possible to load template unit file. */ | |
29283ea4 | 1570 | |
c3e7fba0 | 1571 | STRV_FOREACH(p, lp->search_path) { |
e50bd775 LP |
1572 | _cleanup_free_ char *path = NULL; |
1573 | ||
657ee2d8 | 1574 | path = path_join(*p, template); |
62b00233 ZJS |
1575 | if (!path) |
1576 | return -ENOMEM; | |
29283ea4 | 1577 | |
4a84db4c | 1578 | r = unit_file_load_or_readlink(ctx, info, path, lp, flags); |
0155928c | 1579 | if (r >= 0) { |
ae2a15bc | 1580 | info->path = TAKE_PTR(path); |
142468d8 JL |
1581 | result = r; |
1582 | found_unit = true; | |
1583 | break; | |
a1feacf7 | 1584 | } else if (!IN_SET(r, -ENOENT, -ENOTDIR, -EACCES)) |
0155928c | 1585 | return r; |
29283ea4 | 1586 | } |
83096483 LP |
1587 | } |
1588 | ||
baaa35ad ZJS |
1589 | if (!found_unit) |
1590 | return log_debug_errno(SYNTHETIC_ERRNO(ENOENT), | |
1591 | "Cannot find unit %s%s%s.", | |
1592 | info->name, template ? " or " : "", strempty(template)); | |
142468d8 | 1593 | |
91810c8f | 1594 | if (info->install_mode == INSTALL_MODE_MASKED) |
9639b175 FB |
1595 | return result; |
1596 | ||
142468d8 JL |
1597 | /* Search for drop-in directories */ |
1598 | ||
1599 | dropin_dir_name = strjoina(info->name, ".d"); | |
c3e7fba0 | 1600 | STRV_FOREACH(p, lp->search_path) { |
142468d8 JL |
1601 | char *path; |
1602 | ||
62a85ee0 | 1603 | path = path_join(*p, dropin_dir_name); |
142468d8 JL |
1604 | if (!path) |
1605 | return -ENOMEM; | |
1606 | ||
1607 | r = strv_consume(&dirs, path); | |
1608 | if (r < 0) | |
1609 | return r; | |
1610 | } | |
1611 | ||
1612 | if (template) { | |
1613 | dropin_template_dir_name = strjoina(template, ".d"); | |
c3e7fba0 | 1614 | STRV_FOREACH(p, lp->search_path) { |
142468d8 JL |
1615 | char *path; |
1616 | ||
62a85ee0 | 1617 | path = path_join(*p, dropin_template_dir_name); |
142468d8 JL |
1618 | if (!path) |
1619 | return -ENOMEM; | |
1620 | ||
1621 | r = strv_consume(&dirs, path); | |
1622 | if (r < 0) | |
1623 | return r; | |
1624 | } | |
1625 | } | |
1626 | ||
1627 | /* Load drop-in conf files */ | |
1628 | ||
1629 | r = conf_files_list_strv(&files, ".conf", NULL, 0, (const char**) dirs); | |
1630 | if (r < 0) | |
1631 | return log_debug_errno(r, "Failed to get list of conf files: %m"); | |
1632 | ||
1633 | STRV_FOREACH(p, files) { | |
4a84db4c | 1634 | r = unit_file_load_or_readlink(ctx, info, *p, lp, flags | SEARCH_DROPIN); |
142468d8 | 1635 | if (r < 0) |
e75a26d0 | 1636 | return log_debug_errno(r, "Failed to load conf file \"%s\": %m", *p); |
142468d8 JL |
1637 | } |
1638 | ||
1639 | return result; | |
83096483 LP |
1640 | } |
1641 | ||
0ec0deaa | 1642 | static int install_info_follow( |
4a84db4c | 1643 | InstallContext *ctx, |
0047d54d | 1644 | InstallInfo *info, |
c3e7fba0 | 1645 | const LookupPaths *lp, |
9f6cbcf5 LP |
1646 | SearchFlags flags, |
1647 | bool ignore_different_name) { | |
0ec0deaa | 1648 | |
4a84db4c ZJS |
1649 | assert(ctx); |
1650 | assert(info); | |
0ec0deaa | 1651 | |
91810c8f | 1652 | if (!IN_SET(info->install_mode, INSTALL_MODE_ALIAS, INSTALL_MODE_LINKED)) |
0ec0deaa | 1653 | return -EINVAL; |
4a84db4c | 1654 | if (!info->symlink_target) |
0ec0deaa LP |
1655 | return -EINVAL; |
1656 | ||
4f5c2485 | 1657 | /* If the basename doesn't match, the caller should add a complete new entry for this. */ |
0ec0deaa | 1658 | |
3e02c8d8 | 1659 | if (!ignore_different_name && !path_equal_filename(info->symlink_target, info->name)) |
0ec0deaa LP |
1660 | return -EXDEV; |
1661 | ||
4a84db4c | 1662 | free_and_replace(info->path, info->symlink_target); |
91810c8f | 1663 | info->install_mode = _INSTALL_MODE_INVALID; |
0ec0deaa | 1664 | |
4a84db4c | 1665 | return unit_file_load_or_readlink(ctx, info, info->path, lp, flags); |
0ec0deaa LP |
1666 | } |
1667 | ||
64f9280e | 1668 | /** |
ff56349d ZJS |
1669 | * Search for the unit file. If the unit name is a symlink, follow the symlink to the |
1670 | * target, maybe more than once. Propagate the instance name if present. | |
64f9280e | 1671 | */ |
0ec0deaa | 1672 | static int install_info_traverse( |
4a84db4c | 1673 | InstallContext *ctx, |
c3e7fba0 | 1674 | const LookupPaths *lp, |
0047d54d | 1675 | InstallInfo *start, |
0ec0deaa | 1676 | SearchFlags flags, |
0047d54d | 1677 | InstallInfo **ret) { |
83096483 | 1678 | |
0047d54d | 1679 | InstallInfo *i; |
0ec0deaa | 1680 | unsigned k = 0; |
83096483 LP |
1681 | int r; |
1682 | ||
d51c4045 | 1683 | assert(ctx); |
c3e7fba0 | 1684 | assert(lp); |
0ec0deaa | 1685 | assert(start); |
83096483 | 1686 | |
4a84db4c | 1687 | r = unit_file_search(ctx, start, lp, flags); |
83096483 LP |
1688 | if (r < 0) |
1689 | return r; | |
1690 | ||
0ec0deaa | 1691 | i = start; |
91810c8f | 1692 | while (IN_SET(i->install_mode, INSTALL_MODE_ALIAS, INSTALL_MODE_LINKED)) { |
0ec0deaa | 1693 | /* Follow the symlink */ |
83096483 | 1694 | |
0ec0deaa LP |
1695 | if (++k > UNIT_FILE_FOLLOW_SYMLINK_MAX) |
1696 | return -ELOOP; | |
83096483 | 1697 | |
d51c4045 | 1698 | if (!FLAGS_SET(flags, SEARCH_FOLLOW_CONFIG_SYMLINKS)) { |
c3e7fba0 | 1699 | r = path_is_config(lp, i->path, true); |
e1c5c2b0 LP |
1700 | if (r < 0) |
1701 | return r; | |
1702 | if (r > 0) | |
1703 | return -ELOOP; | |
1704 | } | |
83096483 | 1705 | |
48eadb9d ZJS |
1706 | r = install_info_follow(ctx, i, lp, flags, |
1707 | /* If linked, don't look at the target name */ | |
91810c8f | 1708 | /* ignore_different_name= */ i->install_mode == INSTALL_MODE_LINKED); |
19cfda9f | 1709 | if (r == -EXDEV && i->symlink_target) { |
d51c4045 | 1710 | _cleanup_free_ char *target_name = NULL, *unit_instance = NULL; |
0ec0deaa | 1711 | const char *bn; |
83096483 | 1712 | |
4f5c2485 | 1713 | /* Target is an alias, create a new install info object and continue with that. */ |
83096483 | 1714 | |
d51c4045 MY |
1715 | r = path_extract_filename(i->symlink_target, &target_name); |
1716 | if (r < 0) | |
1717 | return r; | |
83096483 | 1718 | |
0ec0deaa | 1719 | if (unit_name_is_valid(i->name, UNIT_NAME_INSTANCE) && |
d51c4045 | 1720 | unit_name_is_valid(target_name, UNIT_NAME_TEMPLATE)) { |
83096483 | 1721 | |
0ec0deaa LP |
1722 | _cleanup_free_ char *instance = NULL; |
1723 | ||
1724 | r = unit_name_to_instance(i->name, &instance); | |
1725 | if (r < 0) | |
1726 | return r; | |
1727 | ||
d51c4045 | 1728 | r = unit_name_replace_instance(target_name, instance, &unit_instance); |
0ec0deaa LP |
1729 | if (r < 0) |
1730 | return r; | |
1731 | ||
d51c4045 | 1732 | if (streq(unit_instance, i->name)) { |
4f5c2485 ZJS |
1733 | /* We filled in the instance, and the target stayed the same? If so, |
1734 | * then let's honour the link as it is. */ | |
9f6cbcf5 | 1735 | |
4a84db4c | 1736 | r = install_info_follow(ctx, i, lp, flags, true); |
9f6cbcf5 LP |
1737 | if (r < 0) |
1738 | return r; | |
1739 | ||
1740 | continue; | |
1741 | } | |
1742 | ||
d51c4045 MY |
1743 | bn = unit_instance; |
1744 | } else | |
1745 | bn = target_name; | |
0ec0deaa | 1746 | |
4a84db4c | 1747 | r = install_info_add(ctx, bn, NULL, lp->root_dir, /* auxiliary= */ false, &i); |
0ec0deaa LP |
1748 | if (r < 0) |
1749 | return r; | |
1750 | ||
0155928c | 1751 | /* Try again, with the new target we found. */ |
4a84db4c | 1752 | r = unit_file_search(ctx, i, lp, flags); |
893275df ZJS |
1753 | if (r == -ENOENT) |
1754 | /* Translate error code to highlight this specific case */ | |
1755 | return -ENOLINK; | |
0ec0deaa | 1756 | } |
0155928c ZJS |
1757 | if (r < 0) |
1758 | return r; | |
83096483 LP |
1759 | } |
1760 | ||
0ec0deaa LP |
1761 | if (ret) |
1762 | *ret = i; | |
83096483 | 1763 | |
0ec0deaa LP |
1764 | return 0; |
1765 | } | |
83096483 | 1766 | |
ff56349d ZJS |
1767 | /** |
1768 | * Call install_info_add() with name_or_path as the path (if name_or_path starts with "/") | |
1769 | * or the name (otherwise). root_dir is prepended to the path. | |
1770 | */ | |
401017e0 | 1771 | static int install_info_add_auto( |
4a84db4c | 1772 | InstallContext *ctx, |
c3e7fba0 | 1773 | const LookupPaths *lp, |
401017e0 | 1774 | const char *name_or_path, |
0047d54d | 1775 | InstallInfo **ret) { |
401017e0 | 1776 | |
4a84db4c | 1777 | assert(ctx); |
401017e0 LP |
1778 | assert(name_or_path); |
1779 | ||
1780 | if (path_is_absolute(name_or_path)) { | |
1fbfbe81 DDM |
1781 | _cleanup_free_ char *pp = path_join(lp->root_dir, name_or_path); |
1782 | if (!pp) | |
1783 | return -ENOMEM; | |
401017e0 | 1784 | |
4a84db4c | 1785 | return install_info_add(ctx, NULL, pp, lp->root_dir, /* auxiliary= */ false, ret); |
401017e0 | 1786 | } else |
4a84db4c | 1787 | return install_info_add(ctx, name_or_path, NULL, lp->root_dir, /* auxiliary= */ false, ret); |
401017e0 LP |
1788 | } |
1789 | ||
0ec0deaa | 1790 | static int install_info_discover( |
4a84db4c | 1791 | InstallContext *ctx, |
c3e7fba0 | 1792 | const LookupPaths *lp, |
0f87041f | 1793 | const char *name_or_path, |
0ec0deaa | 1794 | SearchFlags flags, |
0047d54d | 1795 | InstallInfo **ret, |
cd44ec5a | 1796 | InstallChange **changes, |
da6053d0 | 1797 | size_t *n_changes) { |
83096483 | 1798 | |
0047d54d | 1799 | InstallInfo *info; |
0ec0deaa | 1800 | int r; |
83096483 | 1801 | |
4a84db4c | 1802 | assert(ctx); |
c3e7fba0 | 1803 | assert(lp); |
0f87041f | 1804 | assert(name_or_path); |
0ec0deaa | 1805 | |
0f87041f | 1806 | r = install_info_add_auto(ctx, lp, name_or_path, &info); |
59108fbe | 1807 | if (r >= 0) |
4a84db4c | 1808 | r = install_info_traverse(ctx, lp, info, flags, ret); |
83096483 | 1809 | |
59108fbe | 1810 | if (r < 0) |
422f80d5 LP |
1811 | return install_changes_add(changes, n_changes, r, name_or_path, NULL); |
1812 | ||
59108fbe | 1813 | return r; |
83096483 LP |
1814 | } |
1815 | ||
1e475a0a | 1816 | static int install_info_discover_and_check( |
4a84db4c ZJS |
1817 | InstallContext *ctx, |
1818 | const LookupPaths *lp, | |
0f87041f | 1819 | const char *name_or_path, |
4a84db4c | 1820 | SearchFlags flags, |
0047d54d | 1821 | InstallInfo **ret, |
cd44ec5a | 1822 | InstallChange **changes, |
4a84db4c | 1823 | size_t *n_changes) { |
1e475a0a RB |
1824 | |
1825 | int r; | |
1826 | ||
0f87041f | 1827 | r = install_info_discover(ctx, lp, name_or_path, flags, ret, changes, n_changes); |
1e475a0a RB |
1828 | if (r < 0) |
1829 | return r; | |
1830 | ||
c3e7fba0 | 1831 | return install_info_may_process(ret ? *ret : NULL, lp, changes, n_changes); |
1e475a0a RB |
1832 | } |
1833 | ||
cbfdbffb | 1834 | int unit_file_verify_alias( |
0047d54d | 1835 | const InstallInfo *info, |
cbfdbffb ZJS |
1836 | const char *dst, |
1837 | char **ret_dst, | |
cd44ec5a | 1838 | InstallChange **changes, |
cbfdbffb ZJS |
1839 | size_t *n_changes) { |
1840 | ||
3f57bc22 | 1841 | _cleanup_free_ char *dst_updated = NULL; |
aa0f357f ZJS |
1842 | int r; |
1843 | ||
3f57bc22 ZJS |
1844 | /* Verify that dst is a valid either a valid alias or a valid .wants/.requires symlink for the target |
1845 | * unit *i. Return negative on error or if not compatible, zero on success. | |
1846 | * | |
1847 | * ret_dst is set in cases where "instance propagation" happens, i.e. when the instance part is | |
1848 | * inserted into dst. It is not normally set, even on success, so that the caller can easily | |
162392b7 | 1849 | * distinguish the case where instance propagation occurred. |
f663e646 ZJS |
1850 | * |
1851 | * Returns: | |
1852 | * -EXDEV when the alias doesn't match the unit, | |
1853 | * -EUCLEAN when the name is invalid, | |
1854 | * -ELOOP when the alias it to the unit itself. | |
3f57bc22 ZJS |
1855 | */ |
1856 | ||
1857 | const char *path_alias = strrchr(dst, '/'); | |
1858 | if (path_alias) { | |
1859 | /* This branch covers legacy Alias= function of creating .wants and .requires symlinks. */ | |
1860 | _cleanup_free_ char *dir = NULL; | |
1bf15585 | 1861 | char *p; |
aa0f357f | 1862 | |
b3a9d980 | 1863 | path_alias++; /* skip over slash */ |
aa0f357f | 1864 | |
45519d13 LP |
1865 | r = path_extract_directory(dst, &dir); |
1866 | if (r < 0) | |
1867 | return log_error_errno(r, "Failed to extract parent directory from '%s': %m", dst); | |
aa0f357f | 1868 | |
1bf15585 ZJS |
1869 | p = endswith(dir, ".wants"); |
1870 | if (!p) | |
1871 | p = endswith(dir, ".requires"); | |
cbfdbffb | 1872 | if (!p) { |
422f80d5 LP |
1873 | r = install_changes_add(changes, n_changes, -EXDEV, dst, NULL); |
1874 | if (r != -EXDEV) | |
1875 | return r; | |
1876 | ||
cbfdbffb ZJS |
1877 | return log_debug_errno(SYNTHETIC_ERRNO(EXDEV), "Invalid path \"%s\" in alias.", dir); |
1878 | } | |
1879 | ||
1bf15585 ZJS |
1880 | *p = '\0'; /* dir should now be a unit name */ |
1881 | ||
73ce91a0 | 1882 | UnitNameFlags type = unit_name_classify(dir); |
cbfdbffb | 1883 | if (type < 0) { |
422f80d5 LP |
1884 | r = install_changes_add(changes, n_changes, -EXDEV, dst, NULL); |
1885 | if (r != -EXDEV) | |
1886 | return r; | |
cbfdbffb ZJS |
1887 | return log_debug_errno(SYNTHETIC_ERRNO(EXDEV), |
1888 | "Invalid unit name component \"%s\" in alias.", dir); | |
1889 | } | |
1bf15585 | 1890 | |
73ce91a0 | 1891 | const bool instance_propagation = type == UNIT_NAME_TEMPLATE; |
3f57bc22 ZJS |
1892 | |
1893 | /* That's the name we want to use for verification. */ | |
4a84db4c | 1894 | r = unit_symlink_name_compatible(path_alias, info->name, instance_propagation); |
aa0f357f | 1895 | if (r < 0) |
3f57bc22 | 1896 | return log_error_errno(r, "Failed to verify alias validity: %m"); |
cbfdbffb | 1897 | if (r == 0) { |
422f80d5 LP |
1898 | r = install_changes_add(changes, n_changes, -EXDEV, dst, info->name); |
1899 | if (r != -EXDEV) | |
1900 | return r; | |
1901 | ||
cbfdbffb ZJS |
1902 | return log_debug_errno(SYNTHETIC_ERRNO(EXDEV), |
1903 | "Invalid unit \"%s\" symlink \"%s\".", | |
1904 | info->name, dst); | |
1905 | } | |
3f57bc22 ZJS |
1906 | |
1907 | } else { | |
1908 | /* If the symlink target has an instance set and the symlink source doesn't, we "propagate | |
1909 | * the instance", i.e. instantiate the symlink source with the target instance. */ | |
1910 | if (unit_name_is_valid(dst, UNIT_NAME_TEMPLATE)) { | |
1911 | _cleanup_free_ char *inst = NULL; | |
1912 | ||
4a84db4c | 1913 | UnitNameFlags type = unit_name_to_instance(info->name, &inst); |
cbfdbffb | 1914 | if (type < 0) { |
422f80d5 LP |
1915 | r = install_changes_add(changes, n_changes, -EUCLEAN, info->name, NULL); |
1916 | if (r != -EUCLEAN) | |
1917 | return r; | |
cbfdbffb ZJS |
1918 | return log_debug_errno(type, "Failed to extract instance name from \"%s\": %m", info->name); |
1919 | } | |
3f57bc22 | 1920 | |
73ce91a0 | 1921 | if (type == UNIT_NAME_INSTANCE) { |
3f57bc22 ZJS |
1922 | r = unit_name_replace_instance(dst, inst, &dst_updated); |
1923 | if (r < 0) | |
1924 | return log_error_errno(r, "Failed to build unit name from %s+%s: %m", | |
1925 | dst, inst); | |
1926 | } | |
1927 | } | |
aa0f357f | 1928 | |
cbfdbffb | 1929 | r = unit_validate_alias_symlink_or_warn(LOG_DEBUG, dst_updated ?: dst, info->name); |
f663e646 ZJS |
1930 | if (r == -ELOOP) /* -ELOOP means self-alias, which we (quietly) ignore */ |
1931 | return r; | |
94e7298d ZJS |
1932 | if (r < 0) |
1933 | return install_changes_add(changes, n_changes, | |
1934 | r == -EINVAL ? -EXDEV : r, | |
1935 | dst_updated ?: dst, | |
1936 | info->name); | |
aa0f357f ZJS |
1937 | } |
1938 | ||
3f57bc22 | 1939 | *ret_dst = TAKE_PTR(dst_updated); |
aa0f357f ZJS |
1940 | return 0; |
1941 | } | |
1942 | ||
83096483 | 1943 | static int install_info_symlink_alias( |
4870133b | 1944 | RuntimeScope scope, |
0047d54d | 1945 | InstallInfo *info, |
c3e7fba0 | 1946 | const LookupPaths *lp, |
83096483 LP |
1947 | const char *config_path, |
1948 | bool force, | |
cd44ec5a | 1949 | InstallChange **changes, |
da6053d0 | 1950 | size_t *n_changes) { |
83096483 | 1951 | |
b2751cf0 | 1952 | int r, ret = 0; |
83096483 | 1953 | |
4a84db4c | 1954 | assert(info); |
c3e7fba0 | 1955 | assert(lp); |
83096483 LP |
1956 | assert(config_path); |
1957 | ||
4a84db4c | 1958 | STRV_FOREACH(s, info->aliases) { |
6fec0fed | 1959 | _cleanup_free_ char *alias_path = NULL, *alias_target = NULL, *dst = NULL, *dst_updated = NULL; |
83096483 | 1960 | |
b2751cf0 MY |
1961 | r = install_name_printf(scope, info, *s, &dst); |
1962 | if (r < 0) { | |
1963 | RET_GATHER(ret, install_changes_add(changes, n_changes, r, *s, NULL)); | |
0d11db59 | 1964 | continue; |
6ec4c852 | 1965 | } |
83096483 | 1966 | |
b2751cf0 MY |
1967 | r = unit_file_verify_alias(info, dst, &dst_updated, changes, n_changes); |
1968 | if (r < 0) { | |
1969 | if (r != -ELOOP) | |
1970 | RET_GATHER(ret, r); | |
aa0f357f | 1971 | continue; |
0d11db59 | 1972 | } |
3d0205f2 | 1973 | |
3f57bc22 | 1974 | alias_path = path_make_absolute(dst_updated ?: dst, config_path); |
83096483 LP |
1975 | if (!alias_path) |
1976 | return -ENOMEM; | |
1977 | ||
6fec0fed NR |
1978 | r = in_search_path(lp, info->path); |
1979 | if (r < 0) | |
1980 | return r; | |
1981 | if (r == 0) { | |
1982 | /* The unit path itself is outside of the search path. To | |
1983 | * correctly apply the alias, we need the alias symlink to | |
1984 | * point to the symlink that was created in the search path. */ | |
1985 | alias_target = path_join(config_path, info->name); | |
1986 | if (!alias_target) | |
1987 | return -ENOMEM; | |
1988 | } | |
1989 | ||
b2751cf0 MY |
1990 | bool broken; |
1991 | r = chase(alias_path, lp->root_dir, CHASE_NONEXISTENT, /* ret_path = */ NULL, /* ret_fd = */ NULL); | |
1992 | if (r < 0 && r != -ENOENT) { | |
1993 | RET_GATHER(ret, r); | |
c067e61b MY |
1994 | continue; |
1995 | } | |
b2751cf0 | 1996 | broken = r == 0; /* symlink target does not exist? */ |
c067e61b | 1997 | |
4441cf33 MY |
1998 | r = create_symlink(lp, alias_target ?: info->path, alias_path, force || broken, changes, n_changes); |
1999 | if (r != 0 && ret >= 0) | |
2000 | ret = r; | |
83096483 LP |
2001 | } |
2002 | ||
b2751cf0 | 2003 | return ret; |
83096483 LP |
2004 | } |
2005 | ||
2006 | static int install_info_symlink_wants( | |
4870133b | 2007 | RuntimeScope scope, |
9b69770a | 2008 | UnitFileFlags file_flags, |
0047d54d | 2009 | InstallInfo *info, |
c3e7fba0 | 2010 | const LookupPaths *lp, |
83096483 | 2011 | const char *config_path, |
d54c4993 LP |
2012 | char **list, |
2013 | const char *suffix, | |
cd44ec5a | 2014 | InstallChange **changes, |
da6053d0 | 2015 | size_t *n_changes) { |
83096483 | 2016 | |
acb5b834 ZJS |
2017 | _cleanup_(install_info_clear) InstallInfo instance = { |
2018 | .install_mode = _INSTALL_MODE_INVALID, | |
2019 | }; | |
2020 | ||
b0ec372a | 2021 | UnitNameFlags valid_dst_type = UNIT_NAME_ANY; |
d54c4993 | 2022 | const char *n; |
dd6b325a | 2023 | int r, q; |
83096483 | 2024 | |
4a84db4c | 2025 | assert(info); |
c3e7fba0 | 2026 | assert(lp); |
83096483 LP |
2027 | assert(config_path); |
2028 | ||
047d91f9 ZJS |
2029 | if (strv_isempty(list)) |
2030 | return 0; | |
2031 | ||
4a84db4c | 2032 | if (unit_name_is_valid(info->name, UNIT_NAME_PLAIN | UNIT_NAME_INSTANCE)) |
b0ec372a | 2033 | /* Not a template unit. Use the name directly. */ |
4a84db4c | 2034 | n = info->name; |
b0ec372a | 2035 | |
4a84db4c | 2036 | else if (info->default_instance) { |
b0ec372a | 2037 | /* If this is a template, and we have a default instance, use it. */ |
e4086ae0 | 2038 | |
acb5b834 | 2039 | r = unit_name_replace_instance(info->name, info->default_instance, &instance.name); |
7410616c LP |
2040 | if (r < 0) |
2041 | return r; | |
83096483 | 2042 | |
c3e7fba0 | 2043 | r = unit_file_search(NULL, &instance, lp, SEARCH_FOLLOW_CONFIG_SYMLINKS); |
047d91f9 ZJS |
2044 | if (r < 0) |
2045 | return r; | |
2046 | ||
94e7298d ZJS |
2047 | if (instance.install_mode == INSTALL_MODE_MASKED) |
2048 | return install_changes_add(changes, n_changes, -ERFKILL, instance.path, NULL); | |
047d91f9 | 2049 | |
acb5b834 | 2050 | n = instance.name; |
b0ec372a ZJS |
2051 | |
2052 | } else { | |
2053 | /* We have a template, but no instance yet. When used with an instantiated unit, we will get | |
2054 | * the instance from that unit. Cannot be used with non-instance units. */ | |
2055 | ||
2056 | valid_dst_type = UNIT_NAME_INSTANCE | UNIT_NAME_TEMPLATE; | |
4a84db4c | 2057 | n = info->name; |
b0ec372a | 2058 | } |
78d54bd4 | 2059 | |
f5a0162d | 2060 | r = 0; |
d54c4993 | 2061 | STRV_FOREACH(s, list) { |
9aa3d6b4 | 2062 | _cleanup_free_ char *path = NULL, *dst = NULL; |
78d54bd4 | 2063 | |
38e8a6c7 | 2064 | q = install_name_printf(scope, info, *s, &dst); |
f5a0162d | 2065 | if (q < 0) { |
b2751cf0 | 2066 | RET_GATHER(r, install_changes_add(changes, n_changes, q, *s, NULL)); |
f8979e86 | 2067 | continue; |
f5a0162d | 2068 | } |
7584d236 | 2069 | |
b0ec372a | 2070 | if (!unit_name_is_valid(dst, valid_dst_type)) { |
ad5fdd39 ZJS |
2071 | /* Generate a proper error here: EUCLEAN if the name is generally bad, EIDRM if the |
2072 | * template status doesn't match. If we are doing presets don't bother reporting the | |
2073 | * error. This also covers cases like 'systemctl preset serial-getty@.service', which | |
2074 | * has no DefaultInstance, so there is nothing we can do. At the same time, | |
2075 | * 'systemctl enable serial-getty@.service' should fail, the user should specify an | |
2076 | * instance like in 'systemctl enable serial-getty@ttyS0.service'. | |
2077 | */ | |
b2751cf0 | 2078 | if (FLAGS_SET(file_flags, UNIT_FILE_IGNORE_AUXILIARY_FAILURE)) |
ad5fdd39 ZJS |
2079 | continue; |
2080 | ||
94e7298d | 2081 | if (unit_name_is_valid(dst, UNIT_NAME_ANY)) |
b2751cf0 | 2082 | RET_GATHER(r, install_changes_add(changes, n_changes, -EIDRM, dst, n)); |
94e7298d | 2083 | else |
b2751cf0 | 2084 | RET_GATHER(r, install_changes_add(changes, n_changes, -EUCLEAN, dst, NULL)); |
b0ec372a | 2085 | |
78d54bd4 LP |
2086 | continue; |
2087 | } | |
2088 | ||
9aa3d6b4 | 2089 | path = strjoin(config_path, "/", dst, suffix, n); |
d54c4993 | 2090 | if (!path) |
78d54bd4 LP |
2091 | return -ENOMEM; |
2092 | ||
b2751cf0 | 2093 | q = create_symlink(lp, info->path, path, /* force = */ true, changes, n_changes); |
4441cf33 | 2094 | if (q != 0 && r >= 0) |
78d54bd4 | 2095 | r = q; |
8ae27441 | 2096 | |
f31f10a6 ZJS |
2097 | if (unit_file_exists(scope, lp, dst) == 0) { |
2098 | q = install_changes_add(changes, n_changes, INSTALL_CHANGE_DESTINATION_NOT_PRESENT, dst, info->path); | |
2099 | if (q < 0) | |
2100 | return q; | |
2101 | } | |
78d54bd4 LP |
2102 | } |
2103 | ||
2104 | return r; | |
2105 | } | |
2106 | ||
83096483 | 2107 | static int install_info_symlink_link( |
0047d54d | 2108 | InstallInfo *info, |
c3e7fba0 | 2109 | const LookupPaths *lp, |
83096483 LP |
2110 | const char *config_path, |
2111 | bool force, | |
cd44ec5a | 2112 | InstallChange **changes, |
da6053d0 | 2113 | size_t *n_changes) { |
83096483 | 2114 | |
7fd1b19b | 2115 | _cleanup_free_ char *path = NULL; |
1dacfd2a | 2116 | int r; |
83096483 | 2117 | |
4a84db4c | 2118 | assert(info); |
c3e7fba0 | 2119 | assert(lp); |
83096483 | 2120 | assert(config_path); |
4a84db4c | 2121 | assert(info->path); |
83096483 | 2122 | |
4a84db4c | 2123 | r = in_search_path(lp, info->path); |
fe4aede9 | 2124 | if (r < 0) |
83096483 | 2125 | return r; |
fe4aede9 ZJS |
2126 | if (r > 0) |
2127 | return 0; | |
83096483 | 2128 | |
4a84db4c | 2129 | path = path_join(config_path, info->name); |
1dacfd2a | 2130 | if (!path) |
83096483 LP |
2131 | return -ENOMEM; |
2132 | ||
4a84db4c | 2133 | return create_symlink(lp, info->path, path, force, changes, n_changes); |
83096483 LP |
2134 | } |
2135 | ||
2136 | static int install_info_apply( | |
4870133b | 2137 | RuntimeScope scope, |
9b69770a | 2138 | UnitFileFlags file_flags, |
0047d54d | 2139 | InstallInfo *info, |
c3e7fba0 | 2140 | const LookupPaths *lp, |
83096483 | 2141 | const char *config_path, |
cd44ec5a | 2142 | InstallChange **changes, |
da6053d0 | 2143 | size_t *n_changes) { |
83096483 LP |
2144 | |
2145 | int r, q; | |
2146 | ||
4a84db4c | 2147 | assert(info); |
c3e7fba0 | 2148 | assert(lp); |
83096483 LP |
2149 | assert(config_path); |
2150 | ||
91810c8f | 2151 | if (info->install_mode != INSTALL_MODE_REGULAR) |
0ec0deaa LP |
2152 | return 0; |
2153 | ||
9b69770a ZJS |
2154 | bool force = file_flags & UNIT_FILE_FORCE; |
2155 | ||
20d68b3a ZJS |
2156 | r = install_info_symlink_link(info, lp, config_path, force, changes, n_changes); |
2157 | /* Do not count links to the unit file towards the "carries_install_info" count */ | |
2158 | if (r < 0) | |
2159 | /* If linking of the file failed, do not try to create other symlinks, | |
2160 | * because they might would pointing to a non-existent or wrong unit. */ | |
2161 | return r; | |
2162 | ||
4a84db4c | 2163 | r = install_info_symlink_alias(scope, info, lp, config_path, force, changes, n_changes); |
83096483 | 2164 | |
4a84db4c | 2165 | q = install_info_symlink_wants(scope, file_flags, info, lp, config_path, info->wanted_by, ".wants/", changes, n_changes); |
a159aa07 | 2166 | if (q != 0 && r >= 0) |
83096483 LP |
2167 | r = q; |
2168 | ||
4a84db4c | 2169 | q = install_info_symlink_wants(scope, file_flags, info, lp, config_path, info->required_by, ".requires/", changes, n_changes); |
a159aa07 | 2170 | if (q != 0 && r >= 0) |
78d54bd4 LP |
2171 | r = q; |
2172 | ||
38f90179 | 2173 | q = install_info_symlink_wants(scope, file_flags, info, lp, config_path, info->upheld_by, ".upholds/", changes, n_changes); |
a159aa07 | 2174 | if (q != 0 && r >= 0) |
38f90179 MY |
2175 | r = q; |
2176 | ||
83096483 LP |
2177 | return r; |
2178 | } | |
2179 | ||
2180 | static int install_context_apply( | |
4a84db4c | 2181 | InstallContext *ctx, |
c3e7fba0 | 2182 | const LookupPaths *lp, |
4a84db4c | 2183 | UnitFileFlags file_flags, |
83096483 | 2184 | const char *config_path, |
0ec0deaa | 2185 | SearchFlags flags, |
cd44ec5a | 2186 | InstallChange **changes, |
da6053d0 | 2187 | size_t *n_changes) { |
83096483 | 2188 | |
0047d54d | 2189 | InstallInfo *i; |
0ec0deaa | 2190 | int r; |
83096483 | 2191 | |
4a84db4c | 2192 | assert(ctx); |
c3e7fba0 | 2193 | assert(lp); |
83096483 LP |
2194 | assert(config_path); |
2195 | ||
4a84db4c | 2196 | if (ordered_hashmap_isempty(ctx->will_process)) |
d25e100b | 2197 | return 0; |
83096483 | 2198 | |
f9ae1f5c | 2199 | r = ordered_hashmap_ensure_allocated(&ctx->have_processed, &install_info_hash_ops); |
d25e100b LP |
2200 | if (r < 0) |
2201 | return r; | |
83096483 | 2202 | |
2d5c93c7 | 2203 | r = 0; |
4a84db4c | 2204 | while ((i = ordered_hashmap_first(ctx->will_process))) { |
0ec0deaa | 2205 | int q; |
83096483 | 2206 | |
4a84db4c | 2207 | q = ordered_hashmap_move_one(ctx->have_processed, ctx->will_process, i->name); |
0ec0deaa LP |
2208 | if (q < 0) |
2209 | return q; | |
83096483 | 2210 | |
4a84db4c | 2211 | q = install_info_traverse(ctx, lp, i, flags, NULL); |
459500a3 | 2212 | if (q < 0) { |
3aa96361 | 2213 | if (i->auxiliary) { |
4a4af850 | 2214 | q = install_changes_add(changes, n_changes, INSTALL_CHANGE_AUXILIARY_FAILED, i->name, NULL); |
3aa96361 ZJS |
2215 | if (q < 0) |
2216 | return q; | |
2217 | continue; | |
2218 | } | |
2219 | ||
94e7298d | 2220 | return install_changes_add(changes, n_changes, q, i->name, NULL); |
db093eed | 2221 | } |
0ec0deaa | 2222 | |
f1651715 | 2223 | /* We can attempt to process a masked unit when a different unit |
047d91f9 | 2224 | * that we were processing specifies it in Also=. */ |
91810c8f | 2225 | if (i->install_mode == INSTALL_MODE_MASKED) { |
f31f10a6 ZJS |
2226 | q = install_changes_add(changes, n_changes, INSTALL_CHANGE_IS_MASKED, i->path, NULL); |
2227 | if (q < 0) | |
2228 | return q; | |
f1651715 | 2229 | if (r >= 0) |
047d91f9 ZJS |
2230 | /* Assume that something *could* have been enabled here, |
2231 | * avoid "empty [Install] section" warning. */ | |
f1651715 ZJS |
2232 | r += 1; |
2233 | continue; | |
2234 | } | |
2235 | ||
91810c8f | 2236 | if (i->install_mode != INSTALL_MODE_REGULAR) |
0ec0deaa | 2237 | continue; |
83096483 | 2238 | |
4a84db4c | 2239 | q = install_info_apply(ctx->scope, file_flags, i, lp, config_path, changes, n_changes); |
0ec0deaa LP |
2240 | if (r >= 0) { |
2241 | if (q < 0) | |
2242 | r = q; | |
2243 | else | |
596fc263 | 2244 | r += q; |
0ec0deaa | 2245 | } |
83096483 LP |
2246 | } |
2247 | ||
2248 | return r; | |
2249 | } | |
2250 | ||
2251 | static int install_context_mark_for_removal( | |
4a84db4c | 2252 | InstallContext *ctx, |
c3e7fba0 | 2253 | const LookupPaths *lp, |
83096483 | 2254 | Set **remove_symlinks_to, |
1830ac51 | 2255 | const char *config_path, |
cd44ec5a | 2256 | InstallChange **changes, |
da6053d0 | 2257 | size_t *n_changes) { |
83096483 | 2258 | |
0047d54d | 2259 | InstallInfo *i; |
0ec0deaa | 2260 | int r; |
83096483 | 2261 | |
4a84db4c | 2262 | assert(ctx); |
c3e7fba0 | 2263 | assert(lp); |
1830ac51 | 2264 | assert(config_path); |
83096483 LP |
2265 | |
2266 | /* Marks all items for removal */ | |
2267 | ||
4a84db4c | 2268 | if (ordered_hashmap_isempty(ctx->will_process)) |
d25e100b | 2269 | return 0; |
83096483 | 2270 | |
f9ae1f5c | 2271 | r = ordered_hashmap_ensure_allocated(&ctx->have_processed, &install_info_hash_ops); |
d25e100b LP |
2272 | if (r < 0) |
2273 | return r; | |
83096483 | 2274 | |
4a84db4c | 2275 | while ((i = ordered_hashmap_first(ctx->will_process))) { |
83096483 | 2276 | |
4a84db4c | 2277 | r = ordered_hashmap_move_one(ctx->have_processed, ctx->will_process, i->name); |
0ec0deaa | 2278 | if (r < 0) |
83096483 | 2279 | return r; |
29283ea4 | 2280 | |
4a84db4c | 2281 | r = install_info_traverse(ctx, lp, i, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS, NULL); |
19539807 | 2282 | if (r == -ENOLINK) { |
637d6e5b | 2283 | log_debug_errno(r, "Name %s leads to a dangling symlink, removing name.", i->name); |
f31f10a6 ZJS |
2284 | r = install_changes_add(changes, n_changes, INSTALL_CHANGE_IS_DANGLING, i->path ?: i->name, NULL); |
2285 | if (r < 0) | |
2286 | return r; | |
637d6e5b | 2287 | } else if (r == -ENOENT) { |
637d6e5b LP |
2288 | if (i->auxiliary) /* some unit specified in Also= or similar is missing */ |
2289 | log_debug_errno(r, "Auxiliary unit of %s not found, removing name.", i->name); | |
2290 | else { | |
2291 | log_debug_errno(r, "Unit %s not found, removing name.", i->name); | |
f31f10a6 | 2292 | r = install_changes_add(changes, n_changes, r, i->path ?: i->name, NULL); |
5163c9b1 LB |
2293 | /* In case there's no unit, we still want to remove any leftover symlink, even if |
2294 | * the unit might have been removed already, hence treating ENOENT as non-fatal. */ | |
2295 | if (r != -ENOENT) | |
f31f10a6 | 2296 | return r; |
637d6e5b | 2297 | } |
637d6e5b LP |
2298 | } else if (r < 0) { |
2299 | log_debug_errno(r, "Failed to find unit %s, removing name: %m", i->name); | |
422f80d5 LP |
2300 | int k = install_changes_add(changes, n_changes, r, i->path ?: i->name, NULL); |
2301 | if (k != r) | |
2302 | return k; | |
91810c8f | 2303 | } else if (i->install_mode == INSTALL_MODE_MASKED) { |
637d6e5b | 2304 | log_debug("Unit file %s is masked, ignoring.", i->name); |
422f80d5 LP |
2305 | r = install_changes_add(changes, n_changes, INSTALL_CHANGE_IS_MASKED, i->path ?: i->name, NULL); |
2306 | if (r < 0) | |
2307 | return r; | |
637d6e5b | 2308 | continue; |
91810c8f ZJS |
2309 | } else if (i->install_mode != INSTALL_MODE_REGULAR) { |
2310 | log_debug("Unit %s has install mode %s, ignoring.", | |
2311 | i->name, install_mode_to_string(i->install_mode) ?: "invalid"); | |
0ec0deaa | 2312 | continue; |
64f9280e | 2313 | } |
0ec0deaa LP |
2314 | |
2315 | r = mark_symlink_for_removal(remove_symlinks_to, i->name); | |
2316 | if (r < 0) | |
2317 | return r; | |
2318 | } | |
2319 | ||
2320 | return 0; | |
2321 | } | |
2322 | ||
2323 | int unit_file_mask( | |
4870133b | 2324 | RuntimeScope scope, |
b3796dd8 | 2325 | UnitFileFlags flags, |
0ec0deaa | 2326 | const char *root_dir, |
e9e77e44 | 2327 | char * const *names, |
cd44ec5a | 2328 | InstallChange **changes, |
da6053d0 | 2329 | size_t *n_changes) { |
0ec0deaa | 2330 | |
7dfc7139 | 2331 | _cleanup_(lookup_paths_done) LookupPaths lp = {}; |
e1c5c2b0 | 2332 | const char *config_path; |
0ec0deaa LP |
2333 | int r; |
2334 | ||
2335 | assert(scope >= 0); | |
4870133b | 2336 | assert(scope < _RUNTIME_SCOPE_MAX); |
0ec0deaa | 2337 | |
c3e7fba0 | 2338 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
0ec0deaa LP |
2339 | if (r < 0) |
2340 | return r; | |
2341 | ||
c3e7fba0 | 2342 | config_path = (flags & UNIT_FILE_RUNTIME) ? lp.runtime_config : lp.persistent_config; |
d0fd66a3 LP |
2343 | if (!config_path) |
2344 | return -ENXIO; | |
e1c5c2b0 | 2345 | |
2886cadc MY |
2346 | r = 0; |
2347 | ||
0f87041f | 2348 | STRV_FOREACH(name, names) { |
0ec0deaa | 2349 | _cleanup_free_ char *path = NULL; |
0ec0deaa | 2350 | |
0f87041f | 2351 | if (!unit_name_is_valid(*name, UNIT_NAME_ANY)) { |
2886cadc | 2352 | RET_GATHER(r, -EINVAL); |
0ec0deaa LP |
2353 | continue; |
2354 | } | |
2355 | ||
0f87041f | 2356 | path = path_make_absolute(*name, config_path); |
0ec0deaa LP |
2357 | if (!path) |
2358 | return -ENOMEM; | |
29283ea4 | 2359 | |
2886cadc | 2360 | RET_GATHER(r, create_symlink(&lp, "/dev/null", path, flags & UNIT_FILE_FORCE, changes, n_changes)); |
83096483 LP |
2361 | } |
2362 | ||
2363 | return r; | |
2364 | } | |
2365 | ||
0ec0deaa | 2366 | int unit_file_unmask( |
4870133b | 2367 | RuntimeScope scope, |
b3796dd8 | 2368 | UnitFileFlags flags, |
0ec0deaa | 2369 | const char *root_dir, |
e9e77e44 | 2370 | char * const *names, |
cd44ec5a | 2371 | InstallChange **changes, |
da6053d0 | 2372 | size_t *n_changes) { |
0ec0deaa | 2373 | |
7dfc7139 | 2374 | _cleanup_(lookup_paths_done) LookupPaths lp = {}; |
8d190e99 | 2375 | _cleanup_set_free_ Set *remove_symlinks_to = NULL; |
dc7dd61d | 2376 | _cleanup_strv_free_ char **todo = NULL; |
e1c5c2b0 | 2377 | const char *config_path; |
319a4f4b | 2378 | size_t n_todo = 0; |
0ec0deaa LP |
2379 | int r, q; |
2380 | ||
2381 | assert(scope >= 0); | |
4870133b | 2382 | assert(scope < _RUNTIME_SCOPE_MAX); |
0ec0deaa | 2383 | |
c3e7fba0 | 2384 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
0ec0deaa LP |
2385 | if (r < 0) |
2386 | return r; | |
2387 | ||
c3e7fba0 | 2388 | config_path = (flags & UNIT_FILE_RUNTIME) ? lp.runtime_config : lp.persistent_config; |
1830ac51 MB |
2389 | if (!config_path) |
2390 | return -ENXIO; | |
2391 | ||
d3e85c9c | 2392 | bool dry_run = flags & UNIT_FILE_DRY_RUN; |
1830ac51 | 2393 | |
0f87041f | 2394 | STRV_FOREACH(name, names) { |
0f87041f | 2395 | if (!unit_name_is_valid(*name, UNIT_NAME_ANY)) |
0ec0deaa LP |
2396 | return -EINVAL; |
2397 | ||
7c52d523 | 2398 | /* If root_dir is set, we don't care about kernel command line or generators. |
bf3b0d5f ZJS |
2399 | * But if it is not set, we need to check for interference. */ |
2400 | if (!root_dir) { | |
2401 | _cleanup_(install_info_clear) InstallInfo info = { | |
2402 | .name = *name, /* We borrow *name temporarily… */ | |
2403 | .install_mode = _INSTALL_MODE_INVALID, | |
2404 | }; | |
2405 | ||
2406 | r = unit_file_search(NULL, &info, &lp, 0); | |
2407 | if (r < 0) { | |
2408 | if (r != -ENOENT) | |
2409 | log_debug_errno(r, "Failed to look up unit %s, ignoring: %m", info.name); | |
f31f10a6 ZJS |
2410 | } else if (info.install_mode == INSTALL_MODE_MASKED && |
2411 | path_is_generator(&lp, info.path)) { | |
2412 | r = install_changes_add(changes, n_changes, | |
2413 | INSTALL_CHANGE_IS_MASKED_GENERATOR, info.name, info.path); | |
2414 | if (r < 0) | |
2415 | return r; | |
bf3b0d5f ZJS |
2416 | } |
2417 | ||
2418 | TAKE_PTR(info.name); /* … and give it back here */ | |
2419 | } | |
2420 | ||
2421 | _cleanup_free_ char *path = path_make_absolute(*name, config_path); | |
1830ac51 MB |
2422 | if (!path) |
2423 | return -ENOMEM; | |
0ec0deaa | 2424 | |
1830ac51 MB |
2425 | r = null_or_empty_path(path); |
2426 | if (r == -ENOENT) | |
2427 | continue; | |
2428 | if (r < 0) | |
2429 | return r; | |
2430 | if (r == 0) | |
2431 | continue; | |
0ec0deaa | 2432 | |
319a4f4b | 2433 | if (!GREEDY_REALLOC0(todo, n_todo + 2)) |
1830ac51 | 2434 | return -ENOMEM; |
d054eae6 | 2435 | |
0f87041f | 2436 | todo[n_todo] = strdup(*name); |
1830ac51 MB |
2437 | if (!todo[n_todo]) |
2438 | return -ENOMEM; | |
4910b350 | 2439 | |
1830ac51 | 2440 | n_todo++; |
0ec0deaa LP |
2441 | } |
2442 | ||
2443 | strv_uniq(todo); | |
2444 | ||
2445 | r = 0; | |
1830ac51 MB |
2446 | STRV_FOREACH(i, todo) { |
2447 | _cleanup_free_ char *path = NULL; | |
2448 | const char *rp; | |
0ec0deaa | 2449 | |
1830ac51 MB |
2450 | path = path_make_absolute(*i, config_path); |
2451 | if (!path) | |
2452 | return -ENOMEM; | |
4910b350 | 2453 | |
1830ac51 | 2454 | if (!dry_run && unlink(path) < 0) { |
64d61d19 LP |
2455 | if (errno != ENOENT) |
2456 | RET_GATHER(r, install_changes_add(changes, n_changes, -errno, path, NULL)); | |
0ec0deaa | 2457 | |
1830ac51 | 2458 | continue; |
4910b350 | 2459 | } |
401017e0 | 2460 | |
f31f10a6 ZJS |
2461 | q = install_changes_add(changes, n_changes, INSTALL_CHANGE_UNLINK, path, NULL); |
2462 | if (q < 0) | |
2463 | return q; | |
1830ac51 | 2464 | |
c3e7fba0 | 2465 | rp = skip_root(lp.root_dir, path); |
1830ac51 MB |
2466 | q = mark_symlink_for_removal(&remove_symlinks_to, rp ?: path); |
2467 | if (q < 0) | |
2468 | return q; | |
0ec0deaa LP |
2469 | } |
2470 | ||
2886cadc | 2471 | RET_GATHER(r, remove_marked_symlinks(remove_symlinks_to, config_path, &lp, dry_run, changes, n_changes)); |
1830ac51 | 2472 | |
0ec0deaa LP |
2473 | return r; |
2474 | } | |
2475 | ||
2476 | int unit_file_link( | |
4870133b | 2477 | RuntimeScope scope, |
b3796dd8 | 2478 | UnitFileFlags flags, |
e94937df | 2479 | const char *root_dir, |
e9e77e44 | 2480 | char * const *files, |
cd44ec5a | 2481 | InstallChange **changes, |
da6053d0 | 2482 | size_t *n_changes) { |
e94937df | 2483 | |
7dfc7139 | 2484 | _cleanup_(lookup_paths_done) LookupPaths lp = {}; |
0bb4614a | 2485 | _cleanup_ordered_hashmap_free_ OrderedHashmap *todo = NULL; |
e1c5c2b0 | 2486 | const char *config_path; |
b2751cf0 | 2487 | int r; |
e94937df LN |
2488 | |
2489 | assert(scope >= 0); | |
4870133b | 2490 | assert(scope < _RUNTIME_SCOPE_MAX); |
0bb4614a MY |
2491 | assert(changes); |
2492 | assert(n_changes); | |
e94937df | 2493 | |
c3e7fba0 | 2494 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
e94937df LN |
2495 | if (r < 0) |
2496 | return r; | |
2497 | ||
0bb4614a | 2498 | config_path = FLAGS_SET(flags, UNIT_FILE_RUNTIME) ? lp.runtime_config : lp.persistent_config; |
d0fd66a3 LP |
2499 | if (!config_path) |
2500 | return -ENXIO; | |
e94937df | 2501 | |
0f87041f | 2502 | STRV_FOREACH(file, files) { |
0bb4614a MY |
2503 | _cleanup_free_ char *fn = NULL, *path = NULL, *full = NULL; |
2504 | ||
2505 | if (ordered_hashmap_contains(todo, *file)) | |
2506 | continue; | |
e94937df | 2507 | |
0f87041f | 2508 | if (!path_is_absolute(*file)) |
81de6962 | 2509 | return install_changes_add(changes, n_changes, -EINVAL, *file, NULL); |
e94937df | 2510 | |
0bb4614a MY |
2511 | r = path_extract_filename(*file, &fn); |
2512 | if (r < 0) | |
2513 | return install_changes_add(changes, n_changes, r, *file, NULL); | |
2514 | ||
0ec0deaa | 2515 | if (!unit_name_is_valid(fn, UNIT_NAME_ANY)) |
81de6962 | 2516 | return install_changes_add(changes, n_changes, -EUCLEAN, *file, NULL); |
0ec0deaa | 2517 | |
0f87041f | 2518 | full = path_join(lp.root_dir, *file); |
0ec0deaa LP |
2519 | if (!full) |
2520 | return -ENOMEM; | |
2521 | ||
0bb4614a | 2522 | r = verify_regular_at(AT_FDCWD, full, /* follow = */ false); |
3cc44114 | 2523 | if (r < 0) |
81de6962 | 2524 | return install_changes_add(changes, n_changes, r, *file, NULL); |
0ec0deaa | 2525 | |
81de6962 ZJS |
2526 | r = in_search_path(&lp, *file); |
2527 | if (r < 0) | |
2528 | return install_changes_add(changes, n_changes, r, *file, NULL); | |
2529 | if (r > 0) | |
a6f318a5 | 2530 | /* A silent noop if the file is already in the search path. */ |
0ec0deaa LP |
2531 | continue; |
2532 | ||
05adb256 MY |
2533 | if (underneath_search_path(&lp, *file)) |
2534 | return install_changes_add(changes, n_changes, -ETXTBSY, *file, NULL); | |
a6f318a5 | 2535 | |
0bb4614a MY |
2536 | path = strdup(*file); |
2537 | if (!path) | |
0ec0deaa LP |
2538 | return -ENOMEM; |
2539 | ||
0bb4614a MY |
2540 | r = ordered_hashmap_ensure_put(&todo, &path_hash_ops_free_free, path, fn); |
2541 | if (r < 0) | |
2542 | return r; | |
2543 | assert(r > 0); | |
8af35ba6 | 2544 | |
0bb4614a MY |
2545 | TAKE_PTR(path); |
2546 | TAKE_PTR(fn); | |
e94937df LN |
2547 | } |
2548 | ||
0ec0deaa | 2549 | r = 0; |
0bb4614a MY |
2550 | |
2551 | const char *fn, *path; | |
2552 | ORDERED_HASHMAP_FOREACH_KEY(fn, path, todo) { | |
401017e0 | 2553 | _cleanup_free_ char *new_path = NULL; |
0ec0deaa | 2554 | |
0bb4614a | 2555 | new_path = path_make_absolute(fn, config_path); |
401017e0 | 2556 | if (!new_path) |
0ec0deaa LP |
2557 | return -ENOMEM; |
2558 | ||
0bb4614a | 2559 | RET_GATHER(r, create_symlink(&lp, path, new_path, FLAGS_SET(flags, UNIT_FILE_FORCE), changes, n_changes)); |
2d5c93c7 MS |
2560 | } |
2561 | ||
0ec0deaa LP |
2562 | return r; |
2563 | } | |
2564 | ||
c3e7fba0 | 2565 | static int path_shall_revert(const LookupPaths *lp, const char *path) { |
344ca755 LP |
2566 | int r; |
2567 | ||
c3e7fba0 | 2568 | assert(lp); |
344ca755 LP |
2569 | assert(path); |
2570 | ||
2571 | /* Checks whether the path is one where the drop-in directories shall be removed. */ | |
2572 | ||
c3e7fba0 | 2573 | r = path_is_config(lp, path, true); |
344ca755 LP |
2574 | if (r != 0) |
2575 | return r; | |
2576 | ||
c3e7fba0 | 2577 | r = path_is_control(lp, path); |
344ca755 LP |
2578 | if (r != 0) |
2579 | return r; | |
2580 | ||
c3e7fba0 | 2581 | return path_is_transient(lp, path); |
344ca755 LP |
2582 | } |
2583 | ||
2584 | int unit_file_revert( | |
4870133b | 2585 | RuntimeScope scope, |
344ca755 | 2586 | const char *root_dir, |
e9e77e44 | 2587 | char * const *names, |
cd44ec5a | 2588 | InstallChange **changes, |
da6053d0 | 2589 | size_t *n_changes) { |
344ca755 | 2590 | |
8d190e99 | 2591 | _cleanup_set_free_ Set *remove_symlinks_to = NULL; |
7dfc7139 | 2592 | _cleanup_(lookup_paths_done) LookupPaths lp = {}; |
344ca755 | 2593 | _cleanup_strv_free_ char **todo = NULL; |
319a4f4b | 2594 | size_t n_todo = 0; |
344ca755 LP |
2595 | int r, q; |
2596 | ||
2597 | /* Puts a unit file back into vendor state. This means: | |
2598 | * | |
0f87041f ZJS |
2599 | * a) we remove all drop-in snippets added by the user ("config"), add to transient units |
2600 | * ("transient"), and added via "systemctl set-property" ("control"), but not if the drop-in is | |
2601 | * generated ("generated"). | |
344ca755 | 2602 | * |
0f87041f ZJS |
2603 | * c) if there's a vendor unit file (i.e. one in /usr) we remove any configured overriding unit files |
2604 | * (i.e. in "config", but not in "transient" or "control" or even "generated"). | |
344ca755 | 2605 | * |
4f25723c | 2606 | * We remove all that in both the runtime and the persistent directories, if that applies. |
344ca755 LP |
2607 | */ |
2608 | ||
c3e7fba0 | 2609 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
344ca755 LP |
2610 | if (r < 0) |
2611 | return r; | |
2612 | ||
0f87041f | 2613 | STRV_FOREACH(name, names) { |
344ca755 | 2614 | bool has_vendor = false; |
344ca755 | 2615 | |
0f87041f | 2616 | if (!unit_name_is_valid(*name, UNIT_NAME_ANY)) |
344ca755 LP |
2617 | return -EINVAL; |
2618 | ||
c3e7fba0 | 2619 | STRV_FOREACH(p, lp.search_path) { |
344ca755 LP |
2620 | _cleanup_free_ char *path = NULL, *dropin = NULL; |
2621 | struct stat st; | |
2622 | ||
0f87041f | 2623 | path = path_make_absolute(*name, *p); |
344ca755 LP |
2624 | if (!path) |
2625 | return -ENOMEM; | |
2626 | ||
81de6962 | 2627 | r = RET_NERRNO(lstat(path, &st)); |
344ca755 | 2628 | if (r < 0) { |
81de6962 ZJS |
2629 | if (r != -ENOENT) |
2630 | return install_changes_add(changes, n_changes, r, path, NULL); | |
344ca755 LP |
2631 | } else if (S_ISREG(st.st_mode)) { |
2632 | /* Check if there's a vendor version */ | |
c3e7fba0 | 2633 | r = path_is_vendor_or_generator(&lp, path); |
344ca755 | 2634 | if (r < 0) |
81de6962 | 2635 | return install_changes_add(changes, n_changes, r, path, NULL); |
344ca755 LP |
2636 | if (r > 0) |
2637 | has_vendor = true; | |
2638 | } | |
2639 | ||
b910cc72 | 2640 | dropin = strjoin(path, ".d"); |
344ca755 LP |
2641 | if (!dropin) |
2642 | return -ENOMEM; | |
2643 | ||
81de6962 | 2644 | r = RET_NERRNO(lstat(dropin, &st)); |
344ca755 | 2645 | if (r < 0) { |
81de6962 ZJS |
2646 | if (r != -ENOENT) |
2647 | return install_changes_add(changes, n_changes, r, dropin, NULL); | |
344ca755 LP |
2648 | } else if (S_ISDIR(st.st_mode)) { |
2649 | /* Remove the drop-ins */ | |
c3e7fba0 | 2650 | r = path_shall_revert(&lp, dropin); |
344ca755 | 2651 | if (r < 0) |
81de6962 | 2652 | return install_changes_add(changes, n_changes, r, dropin, NULL); |
344ca755 | 2653 | if (r > 0) { |
319a4f4b | 2654 | if (!GREEDY_REALLOC0(todo, n_todo + 2)) |
344ca755 LP |
2655 | return -ENOMEM; |
2656 | ||
1cc6c93a | 2657 | todo[n_todo++] = TAKE_PTR(dropin); |
344ca755 LP |
2658 | } |
2659 | } | |
2660 | } | |
2661 | ||
2662 | if (!has_vendor) | |
2663 | continue; | |
2664 | ||
2665 | /* OK, there's a vendor version, hence drop all configuration versions */ | |
c3e7fba0 | 2666 | STRV_FOREACH(p, lp.search_path) { |
344ca755 LP |
2667 | _cleanup_free_ char *path = NULL; |
2668 | struct stat st; | |
2669 | ||
0f87041f | 2670 | path = path_make_absolute(*name, *p); |
344ca755 LP |
2671 | if (!path) |
2672 | return -ENOMEM; | |
2673 | ||
81de6962 | 2674 | r = RET_NERRNO(lstat(path, &st)); |
344ca755 | 2675 | if (r < 0) { |
81de6962 ZJS |
2676 | if (r != -ENOENT) |
2677 | return install_changes_add(changes, n_changes, r, path, NULL); | |
344ca755 | 2678 | } else if (S_ISREG(st.st_mode) || S_ISLNK(st.st_mode)) { |
c3e7fba0 | 2679 | r = path_is_config(&lp, path, true); |
344ca755 | 2680 | if (r < 0) |
81de6962 | 2681 | return install_changes_add(changes, n_changes, r, path, NULL); |
344ca755 | 2682 | if (r > 0) { |
319a4f4b | 2683 | if (!GREEDY_REALLOC0(todo, n_todo + 2)) |
344ca755 LP |
2684 | return -ENOMEM; |
2685 | ||
1cc6c93a | 2686 | todo[n_todo++] = TAKE_PTR(path); |
344ca755 LP |
2687 | } |
2688 | } | |
2689 | } | |
2690 | } | |
2691 | ||
2692 | strv_uniq(todo); | |
2693 | ||
2694 | r = 0; | |
2695 | STRV_FOREACH(i, todo) { | |
2696 | _cleanup_strv_free_ char **fs = NULL; | |
2697 | const char *rp; | |
344ca755 LP |
2698 | |
2699 | (void) get_files_in_directory(*i, &fs); | |
2700 | ||
2701 | q = rm_rf(*i, REMOVE_ROOT|REMOVE_PHYSICAL); | |
2702 | if (q < 0 && q != -ENOENT && r >= 0) { | |
2703 | r = q; | |
2704 | continue; | |
2705 | } | |
2706 | ||
2707 | STRV_FOREACH(j, fs) { | |
2708 | _cleanup_free_ char *t = NULL; | |
2709 | ||
657ee2d8 | 2710 | t = path_join(*i, *j); |
344ca755 LP |
2711 | if (!t) |
2712 | return -ENOMEM; | |
2713 | ||
f31f10a6 ZJS |
2714 | q = install_changes_add(changes, n_changes, INSTALL_CHANGE_UNLINK, t, NULL); |
2715 | if (q < 0) | |
2716 | return q; | |
344ca755 LP |
2717 | } |
2718 | ||
f31f10a6 ZJS |
2719 | q = install_changes_add(changes, n_changes, INSTALL_CHANGE_UNLINK, *i, NULL); |
2720 | if (q < 0) | |
2721 | return q; | |
344ca755 | 2722 | |
c3e7fba0 | 2723 | rp = skip_root(lp.root_dir, *i); |
344ca755 LP |
2724 | q = mark_symlink_for_removal(&remove_symlinks_to, rp ?: *i); |
2725 | if (q < 0) | |
2726 | return q; | |
2727 | } | |
2728 | ||
c3e7fba0 | 2729 | q = remove_marked_symlinks(remove_symlinks_to, lp.runtime_config, &lp, false, changes, n_changes); |
344ca755 LP |
2730 | if (r >= 0) |
2731 | r = q; | |
2732 | ||
c3e7fba0 | 2733 | q = remove_marked_symlinks(remove_symlinks_to, lp.persistent_config, &lp, false, changes, n_changes); |
344ca755 LP |
2734 | if (r >= 0) |
2735 | r = q; | |
2736 | ||
2737 | return r; | |
2738 | } | |
2739 | ||
0ec0deaa | 2740 | int unit_file_add_dependency( |
4870133b | 2741 | RuntimeScope scope, |
9b69770a | 2742 | UnitFileFlags file_flags, |
0ec0deaa | 2743 | const char *root_dir, |
e9e77e44 | 2744 | char * const *names, |
0ec0deaa LP |
2745 | const char *target, |
2746 | UnitDependency dep, | |
cd44ec5a | 2747 | InstallChange **changes, |
da6053d0 | 2748 | size_t *n_changes) { |
0ec0deaa | 2749 | |
7dfc7139 | 2750 | _cleanup_(lookup_paths_done) LookupPaths lp = {}; |
4a84db4c | 2751 | _cleanup_(install_context_done) InstallContext ctx = { .scope = scope }; |
0047d54d | 2752 | InstallInfo *info, *target_info; |
e1c5c2b0 | 2753 | const char *config_path; |
0ec0deaa LP |
2754 | int r; |
2755 | ||
2756 | assert(scope >= 0); | |
4870133b | 2757 | assert(scope < _RUNTIME_SCOPE_MAX); |
0ec0deaa | 2758 | assert(target); |
81de6962 | 2759 | assert(IN_SET(dep, UNIT_WANTS, UNIT_REQUIRES)); |
0ec0deaa LP |
2760 | |
2761 | if (!unit_name_is_valid(target, UNIT_NAME_ANY)) | |
81de6962 | 2762 | return install_changes_add(changes, n_changes, -EUCLEAN, target, NULL); |
0ec0deaa | 2763 | |
c3e7fba0 | 2764 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
0ec0deaa LP |
2765 | if (r < 0) |
2766 | return r; | |
2767 | ||
c3e7fba0 | 2768 | config_path = (file_flags & UNIT_FILE_RUNTIME) ? lp.runtime_config : lp.persistent_config; |
d0fd66a3 LP |
2769 | if (!config_path) |
2770 | return -ENXIO; | |
0ec0deaa | 2771 | |
4a84db4c | 2772 | r = install_info_discover_and_check(&ctx, &lp, target, SEARCH_FOLLOW_CONFIG_SYMLINKS, |
1e475a0a | 2773 | &target_info, changes, n_changes); |
76adb5b8 LP |
2774 | if (r < 0) |
2775 | return r; | |
0ec0deaa | 2776 | |
91810c8f | 2777 | assert(target_info->install_mode == INSTALL_MODE_REGULAR); |
e94937df | 2778 | |
0f87041f | 2779 | STRV_FOREACH(name, names) { |
0ec0deaa LP |
2780 | char ***l; |
2781 | ||
0f87041f ZJS |
2782 | r = install_info_discover_and_check(&ctx, &lp, *name, |
2783 | SEARCH_FOLLOW_CONFIG_SYMLINKS, | |
4a84db4c | 2784 | &info, changes, n_changes); |
76adb5b8 LP |
2785 | if (r < 0) |
2786 | return r; | |
0ec0deaa | 2787 | |
91810c8f | 2788 | assert(info->install_mode == INSTALL_MODE_REGULAR); |
0ec0deaa LP |
2789 | |
2790 | /* We didn't actually load anything from the unit | |
2791 | * file, but instead just add in our new symlink to | |
2792 | * create. */ | |
e94937df LN |
2793 | |
2794 | if (dep == UNIT_WANTS) | |
4a84db4c | 2795 | l = &info->wanted_by; |
38f90179 | 2796 | else if (dep == UNIT_REQUIRES) |
4a84db4c | 2797 | l = &info->required_by; |
38f90179 MY |
2798 | else |
2799 | l = &info->upheld_by; | |
e94937df | 2800 | |
0ec0deaa | 2801 | strv_free(*l); |
bea1a013 | 2802 | *l = strv_new(target_info->name); |
0ec0deaa LP |
2803 | if (!*l) |
2804 | return -ENOMEM; | |
e94937df LN |
2805 | } |
2806 | ||
4a84db4c | 2807 | return install_context_apply(&ctx, &lp, file_flags, config_path, |
9b69770a | 2808 | SEARCH_FOLLOW_CONFIG_SYMLINKS, changes, n_changes); |
e94937df LN |
2809 | } |
2810 | ||
ec7eaff3 ZJS |
2811 | static int do_unit_file_enable( |
2812 | const LookupPaths *lp, | |
4870133b | 2813 | RuntimeScope scope, |
ec7eaff3 ZJS |
2814 | UnitFileFlags flags, |
2815 | const char *config_path, | |
e9e77e44 | 2816 | char * const *names_or_paths, |
cd44ec5a | 2817 | InstallChange **changes, |
da6053d0 | 2818 | size_t *n_changes) { |
83096483 | 2819 | |
4a84db4c | 2820 | _cleanup_(install_context_done) InstallContext ctx = { .scope = scope }; |
0047d54d | 2821 | InstallInfo *info; |
83096483 LP |
2822 | int r; |
2823 | ||
0f87041f ZJS |
2824 | STRV_FOREACH(name, names_or_paths) { |
2825 | r = install_info_discover_and_check(&ctx, lp, *name, | |
2826 | SEARCH_LOAD | SEARCH_FOLLOW_CONFIG_SYMLINKS, | |
4a84db4c | 2827 | &info, changes, n_changes); |
76adb5b8 LP |
2828 | if (r < 0) |
2829 | return r; | |
0ec0deaa | 2830 | |
91810c8f | 2831 | assert(info->install_mode == INSTALL_MODE_REGULAR); |
83096483 LP |
2832 | } |
2833 | ||
729e3769 | 2834 | /* This will return the number of symlink rules that were |
d25e100b | 2835 | supposed to be created, not the ones actually created. This |
0f87041f | 2836 | is useful to determine whether the passed units had any |
d25e100b | 2837 | installation data at all. */ |
b91a3b02 | 2838 | |
ec7eaff3 | 2839 | return install_context_apply(&ctx, lp, flags, config_path, |
4a84db4c | 2840 | SEARCH_LOAD, changes, n_changes); |
83096483 LP |
2841 | } |
2842 | ||
ec7eaff3 | 2843 | int unit_file_enable( |
4870133b | 2844 | RuntimeScope scope, |
b3796dd8 | 2845 | UnitFileFlags flags, |
83096483 | 2846 | const char *root_dir, |
e9e77e44 | 2847 | char * const *names_or_paths, |
cd44ec5a | 2848 | InstallChange **changes, |
da6053d0 | 2849 | size_t *n_changes) { |
83096483 | 2850 | |
7dfc7139 | 2851 | _cleanup_(lookup_paths_done) LookupPaths lp = {}; |
0ec0deaa | 2852 | int r; |
83096483 LP |
2853 | |
2854 | assert(scope >= 0); | |
4870133b | 2855 | assert(scope < _RUNTIME_SCOPE_MAX); |
83096483 | 2856 | |
c3e7fba0 | 2857 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
83096483 LP |
2858 | if (r < 0) |
2859 | return r; | |
2860 | ||
ec7eaff3 | 2861 | const char *config_path = config_path_from_flags(&lp, flags); |
1830ac51 MB |
2862 | if (!config_path) |
2863 | return -ENXIO; | |
2864 | ||
0f87041f | 2865 | return do_unit_file_enable(&lp, scope, flags, config_path, names_or_paths, changes, n_changes); |
ec7eaff3 ZJS |
2866 | } |
2867 | ||
2868 | static int do_unit_file_disable( | |
2869 | const LookupPaths *lp, | |
4870133b | 2870 | RuntimeScope scope, |
ec7eaff3 ZJS |
2871 | UnitFileFlags flags, |
2872 | const char *config_path, | |
e9e77e44 | 2873 | char * const *names, |
cd44ec5a | 2874 | InstallChange **changes, |
ec7eaff3 ZJS |
2875 | size_t *n_changes) { |
2876 | ||
2877 | _cleanup_(install_context_done) InstallContext ctx = { .scope = scope }; | |
bf1bea43 | 2878 | bool has_install_info = false; |
ec7eaff3 ZJS |
2879 | int r; |
2880 | ||
0f87041f | 2881 | STRV_FOREACH(name, names) { |
a4d733db MY |
2882 | InstallInfo *info; |
2883 | ||
0f87041f | 2884 | if (!unit_name_is_valid(*name, UNIT_NAME_ANY)) |
81de6962 | 2885 | return install_changes_add(changes, n_changes, -EUCLEAN, *name, NULL); |
0ec0deaa | 2886 | |
bf1bea43 MY |
2887 | r = install_info_add(&ctx, *name, NULL, lp->root_dir, /* auxiliary= */ false, &info); |
2888 | if (r >= 0) | |
2889 | r = install_info_traverse(&ctx, lp, info, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS, NULL); | |
5163c9b1 LB |
2890 | if (r < 0) { |
2891 | r = install_changes_add(changes, n_changes, r, *name, NULL); | |
2892 | /* In case there's no unit, we still want to remove any leftover symlink, even if | |
2893 | * the unit might have been removed already, hence treating ENOENT as non-fatal. */ | |
2894 | if (r != -ENOENT) | |
2895 | return r; | |
2896 | } | |
bf1bea43 MY |
2897 | |
2898 | /* If we enable multiple units, some with install info and others without, | |
2899 | * the "empty [Install] section" warning is not shown. Let's make the behavior | |
2900 | * of disable align with that. */ | |
2901 | has_install_info = has_install_info || install_info_has_rules(info) || install_info_has_also(info); | |
83096483 LP |
2902 | } |
2903 | ||
8d190e99 | 2904 | _cleanup_set_free_ Set *remove_symlinks_to = NULL; |
ec7eaff3 | 2905 | r = install_context_mark_for_removal(&ctx, lp, &remove_symlinks_to, config_path, changes, n_changes); |
bf1bea43 MY |
2906 | if (r >= 0) |
2907 | r = remove_marked_symlinks(remove_symlinks_to, config_path, lp, flags & UNIT_FILE_DRY_RUN, changes, n_changes); | |
0ec0deaa LP |
2908 | if (r < 0) |
2909 | return r; | |
83096483 | 2910 | |
bf1bea43 MY |
2911 | /* The warning is shown only if it's a no-op */ |
2912 | return install_changes_have_modification(*changes, *n_changes) || has_install_info; | |
83096483 LP |
2913 | } |
2914 | ||
ec7eaff3 | 2915 | int unit_file_disable( |
4870133b | 2916 | RuntimeScope scope, |
b3796dd8 | 2917 | UnitFileFlags flags, |
83096483 | 2918 | const char *root_dir, |
e9e77e44 | 2919 | char * const *files, |
cd44ec5a | 2920 | InstallChange **changes, |
da6053d0 | 2921 | size_t *n_changes) { |
0ec0deaa | 2922 | |
7dfc7139 | 2923 | _cleanup_(lookup_paths_done) LookupPaths lp = {}; |
92d430a9 | 2924 | int r; |
ec7eaff3 ZJS |
2925 | |
2926 | assert(scope >= 0); | |
4870133b | 2927 | assert(scope < _RUNTIME_SCOPE_MAX); |
ec7eaff3 ZJS |
2928 | |
2929 | r = lookup_paths_init(&lp, scope, 0, root_dir); | |
2930 | if (r < 0) | |
2931 | return r; | |
2932 | ||
2933 | const char *config_path = config_path_from_flags(&lp, flags); | |
2934 | if (!config_path) | |
2935 | return -ENXIO; | |
2936 | ||
2937 | return do_unit_file_disable(&lp, scope, flags, config_path, files, changes, n_changes); | |
2938 | } | |
2939 | ||
29a7c59a | 2940 | static int normalize_linked_files( |
4870133b | 2941 | RuntimeScope scope, |
29a7c59a | 2942 | const LookupPaths *lp, |
e9e77e44 | 2943 | char * const *names_or_paths, |
29a7c59a ZJS |
2944 | char ***ret_names, |
2945 | char ***ret_files) { | |
2946 | ||
2947 | /* This is similar to normalize_filenames()/normalize_names() in src/systemctl/, | |
30fd9a2d | 2948 | * but operates on real unit names. For each argument we look up the actual path |
8b7378e1 | 2949 | * where the unit is found. This way linked units can be re-enabled successfully. */ |
29a7c59a | 2950 | |
0b6bf4b6 | 2951 | _cleanup_strv_free_ char **files = NULL, **names = NULL; |
29a7c59a ZJS |
2952 | int r; |
2953 | ||
2954 | STRV_FOREACH(a, names_or_paths) { | |
2955 | _cleanup_(install_context_done) InstallContext ctx = { .scope = scope }; | |
0047d54d | 2956 | InstallInfo *i = NULL; |
29a7c59a ZJS |
2957 | _cleanup_free_ char *n = NULL; |
2958 | ||
2959 | r = path_extract_filename(*a, &n); | |
2960 | if (r < 0) | |
2961 | return r; | |
2962 | if (r == O_DIRECTORY) | |
2963 | return log_debug_errno(SYNTHETIC_ERRNO(EISDIR), | |
2964 | "Unexpected path to a directory \"%s\", refusing.", *a); | |
2965 | ||
fe6e0cfa | 2966 | if (!is_path(*a) && !unit_name_is_valid(*a, UNIT_NAME_INSTANCE)) { |
29a7c59a ZJS |
2967 | r = install_info_discover(&ctx, lp, n, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS, &i, NULL, NULL); |
2968 | if (r < 0) | |
2969 | log_debug_errno(r, "Failed to discover unit \"%s\", operating on name: %m", n); | |
2970 | } | |
2971 | ||
2972 | r = strv_consume(&names, TAKE_PTR(n)); | |
2973 | if (r < 0) | |
2974 | return r; | |
2975 | ||
2976 | const char *p = NULL; | |
6e961aeb | 2977 | if (i && i->path && i->root) |
29a7c59a ZJS |
2978 | /* Use startswith here, because we know that paths are normalized, and |
2979 | * path_startswith() would give us a relative path, but we need an absolute path | |
2980 | * relative to i->root. | |
2981 | * | |
2982 | * In other words: /var/tmp/instroot.1234/etc/systemd/system/frobnicator.service | |
2983 | * is replaced by /etc/systemd/system/frobnicator.service, which is "absolute" | |
2984 | * in a sense, but only makes sense "relative" to /var/tmp/instroot.1234/. | |
2985 | */ | |
2986 | p = startswith(i->path, i->root); | |
2987 | ||
2988 | r = strv_extend(&files, p ?: *a); | |
2989 | if (r < 0) | |
2990 | return r; | |
2991 | } | |
2992 | ||
2993 | *ret_names = TAKE_PTR(names); | |
2994 | *ret_files = TAKE_PTR(files); | |
2995 | return 0; | |
2996 | } | |
2997 | ||
ec7eaff3 | 2998 | int unit_file_reenable( |
4870133b | 2999 | RuntimeScope scope, |
ec7eaff3 ZJS |
3000 | UnitFileFlags flags, |
3001 | const char *root_dir, | |
e9e77e44 | 3002 | char * const *names_or_paths, |
cd44ec5a | 3003 | InstallChange **changes, |
ec7eaff3 ZJS |
3004 | size_t *n_changes) { |
3005 | ||
7dfc7139 | 3006 | _cleanup_(lookup_paths_done) LookupPaths lp = {}; |
29a7c59a | 3007 | _cleanup_strv_free_ char **names = NULL, **files = NULL; |
ec7eaff3 ZJS |
3008 | int r; |
3009 | ||
3010 | assert(scope >= 0); | |
4870133b | 3011 | assert(scope < _RUNTIME_SCOPE_MAX); |
ec7eaff3 ZJS |
3012 | |
3013 | r = lookup_paths_init(&lp, scope, 0, root_dir); | |
3014 | if (r < 0) | |
3015 | return r; | |
3016 | ||
3017 | const char *config_path = config_path_from_flags(&lp, flags); | |
3018 | if (!config_path) | |
3019 | return -ENXIO; | |
83096483 | 3020 | |
29a7c59a ZJS |
3021 | r = normalize_linked_files(scope, &lp, names_or_paths, &names, &files); |
3022 | if (r < 0) | |
3023 | return r; | |
0ec0deaa | 3024 | |
29a7c59a | 3025 | /* First, we invoke the disable command with only the basename... */ |
ec7eaff3 | 3026 | r = do_unit_file_disable(&lp, scope, flags, config_path, names, changes, n_changes); |
83096483 | 3027 | if (r < 0) |
d9e5e694 | 3028 | return r; |
83096483 | 3029 | |
0ec0deaa | 3030 | /* But the enable command with the full name */ |
ec7eaff3 | 3031 | return do_unit_file_enable(&lp, scope, flags, config_path, files, changes, n_changes); |
83096483 LP |
3032 | } |
3033 | ||
99504dd4 | 3034 | int unit_file_set_default( |
4870133b | 3035 | RuntimeScope scope, |
b3796dd8 | 3036 | UnitFileFlags flags, |
99504dd4 | 3037 | const char *root_dir, |
0ec0deaa | 3038 | const char *name, |
cd44ec5a | 3039 | InstallChange **changes, |
da6053d0 | 3040 | size_t *n_changes) { |
99504dd4 | 3041 | |
7dfc7139 | 3042 | _cleanup_(lookup_paths_done) LookupPaths lp = {}; |
4a84db4c | 3043 | _cleanup_(install_context_done) InstallContext ctx = { .scope = scope }; |
0047d54d | 3044 | InstallInfo *info; |
60bec8e4 | 3045 | const char *new_path; |
99504dd4 | 3046 | int r; |
99504dd4 VP |
3047 | |
3048 | assert(scope >= 0); | |
4870133b | 3049 | assert(scope < _RUNTIME_SCOPE_MAX); |
0ec0deaa | 3050 | assert(name); |
99504dd4 | 3051 | |
401017e0 | 3052 | if (unit_name_to_type(name) != UNIT_TARGET) /* this also validates the name */ |
0ec0deaa LP |
3053 | return -EINVAL; |
3054 | if (streq(name, SPECIAL_DEFAULT_TARGET)) | |
99504dd4 VP |
3055 | return -EINVAL; |
3056 | ||
c3e7fba0 | 3057 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
99504dd4 VP |
3058 | if (r < 0) |
3059 | return r; | |
3060 | ||
4a84db4c | 3061 | r = install_info_discover_and_check(&ctx, &lp, name, 0, &info, changes, n_changes); |
76adb5b8 LP |
3062 | if (r < 0) |
3063 | return r; | |
99504dd4 | 3064 | |
c3e7fba0 | 3065 | new_path = strjoina(lp.persistent_config, "/" SPECIAL_DEFAULT_TARGET); |
9aa3d6b4 | 3066 | return create_symlink(&lp, info->path, new_path, flags & UNIT_FILE_FORCE, changes, n_changes); |
99504dd4 VP |
3067 | } |
3068 | ||
3069 | int unit_file_get_default( | |
4870133b | 3070 | RuntimeScope scope, |
99504dd4 | 3071 | const char *root_dir, |
454318d3 | 3072 | char **ret) { |
99504dd4 | 3073 | |
7dfc7139 | 3074 | _cleanup_(lookup_paths_done) LookupPaths lp = {}; |
4a84db4c | 3075 | _cleanup_(install_context_done) InstallContext ctx = { .scope = scope }; |
0047d54d | 3076 | InstallInfo *info; |
99504dd4 VP |
3077 | int r; |
3078 | ||
16ed0233 | 3079 | assert(scope >= 0); |
4870133b | 3080 | assert(scope < _RUNTIME_SCOPE_MAX); |
454318d3 | 3081 | assert(ret); |
16ed0233 | 3082 | |
c3e7fba0 | 3083 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
0ec0deaa LP |
3084 | if (r < 0) |
3085 | return r; | |
99504dd4 | 3086 | |
4a84db4c ZJS |
3087 | r = install_info_discover(&ctx, &lp, SPECIAL_DEFAULT_TARGET, SEARCH_FOLLOW_CONFIG_SYMLINKS, |
3088 | &info, NULL, NULL); | |
0ec0deaa LP |
3089 | if (r < 0) |
3090 | return r; | |
99504dd4 | 3091 | |
454318d3 | 3092 | return strdup_to(ret, info->name); |
99504dd4 VP |
3093 | } |
3094 | ||
d6d98276 | 3095 | int unit_file_lookup_state( |
4870133b | 3096 | RuntimeScope scope, |
c3e7fba0 | 3097 | const LookupPaths *lp, |
0ec0deaa LP |
3098 | const char *name, |
3099 | UnitFileState *ret) { | |
83096483 | 3100 | |
4a84db4c | 3101 | _cleanup_(install_context_done) InstallContext ctx = { .scope = scope }; |
0047d54d | 3102 | InstallInfo *info; |
0ec0deaa LP |
3103 | UnitFileState state; |
3104 | int r; | |
83096483 | 3105 | |
c3e7fba0 | 3106 | assert(lp); |
0ec0deaa | 3107 | assert(name); |
83096483 | 3108 | |
7410616c | 3109 | if (!unit_name_is_valid(name, UNIT_NAME_ANY)) |
83096483 LP |
3110 | return -EINVAL; |
3111 | ||
4a84db4c ZJS |
3112 | r = install_info_discover(&ctx, lp, name, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS, |
3113 | &info, NULL, NULL); | |
0ec0deaa | 3114 | if (r < 0) |
3e8d06d9 ZJS |
3115 | return log_debug_errno(r, "Failed to discover unit %s: %m", name); |
3116 | ||
91810c8f | 3117 | assert(IN_SET(info->install_mode, INSTALL_MODE_REGULAR, INSTALL_MODE_MASKED)); |
4a84db4c | 3118 | log_debug("Found unit %s at %s (%s)", name, strna(info->path), |
91810c8f | 3119 | info->install_mode == INSTALL_MODE_REGULAR ? "regular file" : "mask"); |
83096483 | 3120 | |
0ec0deaa LP |
3121 | /* Shortcut things, if the caller just wants to know if this unit exists. */ |
3122 | if (!ret) | |
3123 | return 0; | |
83096483 | 3124 | |
91810c8f | 3125 | switch (info->install_mode) { |
67820a0c | 3126 | |
318031fd | 3127 | case INSTALL_MODE_MASKED: |
4a84db4c | 3128 | r = path_is_runtime(lp, info->path, true); |
385eb996 LP |
3129 | if (r < 0) |
3130 | return r; | |
3131 | ||
3132 | state = r > 0 ? UNIT_FILE_MASKED_RUNTIME : UNIT_FILE_MASKED; | |
0ec0deaa | 3133 | break; |
83096483 | 3134 | |
318031fd | 3135 | case INSTALL_MODE_REGULAR: |
15d7ab87 | 3136 | /* Check if the name we were querying is actually an alias */ |
3e02c8d8 | 3137 | if (!path_equal_filename(name, info->path) && !unit_name_is_valid(info->name, UNIT_NAME_INSTANCE)) { |
15d7ab87 ZJS |
3138 | state = UNIT_FILE_ALIAS; |
3139 | break; | |
3140 | } | |
3141 | ||
4a84db4c | 3142 | r = path_is_generator(lp, info->path); |
f4139308 LP |
3143 | if (r < 0) |
3144 | return r; | |
3145 | if (r > 0) { | |
3146 | state = UNIT_FILE_GENERATED; | |
3147 | break; | |
3148 | } | |
3149 | ||
4a84db4c | 3150 | r = path_is_transient(lp, info->path); |
e4fca67f LP |
3151 | if (r < 0) |
3152 | return r; | |
3153 | if (r > 0) { | |
3154 | state = UNIT_FILE_TRANSIENT; | |
3155 | break; | |
3156 | } | |
3157 | ||
5cd8ae31 ZJS |
3158 | /* Check if any of the Alias= symlinks have been created. |
3159 | * We ignore other aliases, and only check those that would | |
3160 | * be created by systemctl enable for this unit. */ | |
4a84db4c | 3161 | r = find_symlinks_in_scope(scope, lp, info, true, &state); |
d9b4b48f ZJS |
3162 | if (r < 0) |
3163 | return r; | |
3164 | if (r > 0) | |
3165 | break; | |
3166 | ||
3167 | /* Check if the file is known under other names. If it is, | |
3168 | * it might be in use. Report that as UNIT_FILE_INDIRECT. */ | |
4a84db4c | 3169 | r = find_symlinks_in_scope(scope, lp, info, false, &state); |
d9e5e694 ZJS |
3170 | if (r < 0) |
3171 | return r; | |
d9b4b48f ZJS |
3172 | if (r > 0) |
3173 | state = UNIT_FILE_INDIRECT; | |
3174 | else { | |
0047d54d | 3175 | if (install_info_has_rules(info)) |
0ec0deaa | 3176 | state = UNIT_FILE_DISABLED; |
0047d54d | 3177 | else if (install_info_has_also(info)) |
0ec0deaa LP |
3178 | state = UNIT_FILE_INDIRECT; |
3179 | else | |
3180 | state = UNIT_FILE_STATIC; | |
3181 | } | |
83096483 | 3182 | |
0ec0deaa LP |
3183 | break; |
3184 | ||
3185 | default: | |
04499a70 | 3186 | assert_not_reached(); |
83096483 LP |
3187 | } |
3188 | ||
0ec0deaa LP |
3189 | *ret = state; |
3190 | return 0; | |
83096483 LP |
3191 | } |
3192 | ||
0ec0deaa | 3193 | int unit_file_get_state( |
4870133b | 3194 | RuntimeScope scope, |
a8ffe6fb | 3195 | const char *root_dir, |
0ec0deaa LP |
3196 | const char *name, |
3197 | UnitFileState *ret) { | |
a8ffe6fb | 3198 | |
7dfc7139 | 3199 | _cleanup_(lookup_paths_done) LookupPaths lp = {}; |
a8ffe6fb ZJS |
3200 | int r; |
3201 | ||
3202 | assert(scope >= 0); | |
4870133b | 3203 | assert(scope < _RUNTIME_SCOPE_MAX); |
a8ffe6fb ZJS |
3204 | assert(name); |
3205 | ||
c3e7fba0 | 3206 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
a8ffe6fb ZJS |
3207 | if (r < 0) |
3208 | return r; | |
3209 | ||
c3e7fba0 | 3210 | return unit_file_lookup_state(scope, &lp, name, ret); |
a8ffe6fb ZJS |
3211 | } |
3212 | ||
e09c255d LP |
3213 | int unit_file_exists_full(RuntimeScope scope, const LookupPaths *lp, const char *name, char **ret_path) { |
3214 | _cleanup_(install_context_done) InstallContext c = { | |
3215 | .scope = scope, | |
3216 | }; | |
e735decc LP |
3217 | int r; |
3218 | ||
c3e7fba0 | 3219 | assert(lp); |
e735decc LP |
3220 | assert(name); |
3221 | ||
3222 | if (!unit_name_is_valid(name, UNIT_NAME_ANY)) | |
3223 | return -EINVAL; | |
3224 | ||
e09c255d LP |
3225 | InstallInfo *info = NULL; |
3226 | r = install_info_discover( | |
3227 | &c, | |
3228 | lp, | |
3229 | name, | |
3230 | /* flags= */ 0, | |
3231 | ret_path ? &info : NULL, | |
3232 | /* changes= */ NULL, | |
3233 | /* n_changes= */ NULL); | |
3234 | if (r == -ENOENT) { | |
3235 | if (ret_path) | |
3236 | *ret_path = NULL; | |
e735decc | 3237 | return 0; |
e09c255d | 3238 | } |
e735decc LP |
3239 | if (r < 0) |
3240 | return r; | |
3241 | ||
e09c255d LP |
3242 | if (ret_path) { |
3243 | assert(info); | |
3244 | ||
4f77ddca ZJS |
3245 | r = strdup_to(ret_path, info->path); |
3246 | if (r < 0) | |
3247 | return r; | |
e09c255d LP |
3248 | } |
3249 | ||
e735decc LP |
3250 | return 1; |
3251 | } | |
3252 | ||
4c9565ee RB |
3253 | static int split_pattern_into_name_and_instances(const char *pattern, char **out_unit_name, char ***out_instances) { |
3254 | _cleanup_strv_free_ char **instances = NULL; | |
3255 | _cleanup_free_ char *unit_name = NULL; | |
3256 | int r; | |
3257 | ||
3258 | assert(pattern); | |
3259 | assert(out_instances); | |
3260 | assert(out_unit_name); | |
3261 | ||
82bd4da7 | 3262 | r = extract_first_word(&pattern, &unit_name, NULL, EXTRACT_RETAIN_ESCAPE); |
4c9565ee RB |
3263 | if (r < 0) |
3264 | return r; | |
3265 | ||
3266 | /* We handle the instances logic when unit name is extracted */ | |
3267 | if (pattern) { | |
3268 | /* We only create instances when a rule of templated unit | |
3269 | * is seen. A rule like enable foo@.service a b c will | |
3270 | * result in an array of (a, b, c) as instance names */ | |
3271 | if (!unit_name_is_valid(unit_name, UNIT_NAME_TEMPLATE)) | |
3272 | return -EINVAL; | |
3273 | ||
3274 | instances = strv_split(pattern, WHITESPACE); | |
3275 | if (!instances) | |
3276 | return -ENOMEM; | |
3277 | ||
3278 | *out_instances = TAKE_PTR(instances); | |
3279 | } | |
3280 | ||
3281 | *out_unit_name = TAKE_PTR(unit_name); | |
3282 | ||
3283 | return 0; | |
3284 | } | |
3285 | ||
4870133b | 3286 | static int presets_find_config(RuntimeScope scope, const char *root_dir, char ***files) { |
76d75d8b ZJS |
3287 | static const char* const system_dirs[] = { CONF_PATHS("systemd/system-preset"), NULL }; |
3288 | static const char* const user_dirs[] = { CONF_PATHS("systemd/user-preset"), NULL }; | |
f7767d76 | 3289 | const char* const* dirs; |
83096483 LP |
3290 | |
3291 | assert(scope >= 0); | |
4870133b | 3292 | assert(scope < _RUNTIME_SCOPE_MAX); |
0ec0deaa | 3293 | |
4870133b | 3294 | if (scope == RUNTIME_SCOPE_SYSTEM) |
10fd1d46 | 3295 | dirs = system_dirs; |
4870133b | 3296 | else if (IN_SET(scope, RUNTIME_SCOPE_GLOBAL, RUNTIME_SCOPE_USER)) |
10fd1d46 | 3297 | dirs = user_dirs; |
a05294ff | 3298 | else |
04499a70 | 3299 | assert_not_reached(); |
83096483 | 3300 | |
b351ebdc | 3301 | return conf_files_list_strv(files, ".preset", root_dir, 0, dirs); |
e0b8a238 ZJS |
3302 | } |
3303 | ||
4870133b | 3304 | static int read_presets(RuntimeScope scope, const char *root_dir, UnitFilePresets *presets) { |
05cdf6a7 | 3305 | _cleanup_(unit_file_presets_done) UnitFilePresets ps = {}; |
e0b8a238 | 3306 | _cleanup_strv_free_ char **files = NULL; |
e0b8a238 ZJS |
3307 | int r; |
3308 | ||
3309 | assert(scope >= 0); | |
4870133b | 3310 | assert(scope < _RUNTIME_SCOPE_MAX); |
e0b8a238 ZJS |
3311 | assert(presets); |
3312 | ||
3313 | r = presets_find_config(scope, root_dir, &files); | |
83096483 LP |
3314 | if (r < 0) |
3315 | return r; | |
3316 | ||
cba2ef02 | 3317 | STRV_FOREACH(p, files) { |
c2b2df60 | 3318 | _cleanup_fclose_ FILE *f = NULL; |
d544d1a4 | 3319 | int n = 0; |
83096483 | 3320 | |
cba2ef02 | 3321 | f = fopen(*p, "re"); |
83096483 LP |
3322 | if (!f) { |
3323 | if (errno == ENOENT) | |
3324 | continue; | |
3325 | ||
d9e5e694 | 3326 | return -errno; |
83096483 LP |
3327 | } |
3328 | ||
bef77f37 LP |
3329 | for (;;) { |
3330 | _cleanup_free_ char *line = NULL; | |
52c788e6 | 3331 | _cleanup_(unit_file_preset_rule_done) UnitFilePresetRule rule = {}; |
0ec0deaa | 3332 | const char *parameter; |
83096483 | 3333 | |
0ff6ff2b | 3334 | r = read_stripped_line(f, LONG_LINE_MAX, &line); |
bef77f37 LP |
3335 | if (r < 0) |
3336 | return r; | |
3337 | if (r == 0) | |
3338 | break; | |
3339 | ||
d544d1a4 | 3340 | n++; |
83096483 | 3341 | |
0ff6ff2b | 3342 | if (isempty(line)) |
0ec0deaa | 3343 | continue; |
0ff6ff2b | 3344 | if (strchr(COMMENTS, line[0])) |
83096483 LP |
3345 | continue; |
3346 | ||
0ff6ff2b | 3347 | parameter = first_word(line, "enable"); |
0ec0deaa | 3348 | if (parameter) { |
4c9565ee RB |
3349 | char *unit_name; |
3350 | char **instances = NULL; | |
d9e5e694 | 3351 | |
4c9565ee RB |
3352 | /* Unit_name will remain the same as parameter when no instances are specified */ |
3353 | r = split_pattern_into_name_and_instances(parameter, &unit_name, &instances); | |
3354 | if (r < 0) { | |
8ac3c9ab | 3355 | log_syntax(NULL, LOG_WARNING, *p, n, r, "Couldn't parse line '%s'. Ignoring.", line); |
4c9565ee RB |
3356 | continue; |
3357 | } | |
8965d9f8 | 3358 | |
8f7b2566 | 3359 | rule = (UnitFilePresetRule) { |
4c9565ee | 3360 | .pattern = unit_name, |
8965d9f8 | 3361 | .action = PRESET_ENABLE, |
4c9565ee | 3362 | .instances = instances, |
8965d9f8 | 3363 | }; |
0ec0deaa | 3364 | } |
83096483 | 3365 | |
0ff6ff2b | 3366 | parameter = first_word(line, "disable"); |
0ec0deaa | 3367 | if (parameter) { |
8965d9f8 | 3368 | char *pattern; |
d9e5e694 | 3369 | |
8965d9f8 AC |
3370 | pattern = strdup(parameter); |
3371 | if (!pattern) | |
3372 | return -ENOMEM; | |
3373 | ||
8f7b2566 | 3374 | rule = (UnitFilePresetRule) { |
8965d9f8 AC |
3375 | .pattern = pattern, |
3376 | .action = PRESET_DISABLE, | |
3377 | }; | |
3378 | } | |
3379 | ||
0ff6ff2b | 3380 | parameter = first_word(line, "ignore"); |
e77e07f6 DDM |
3381 | if (parameter) { |
3382 | char *pattern; | |
3383 | ||
3384 | pattern = strdup(parameter); | |
3385 | if (!pattern) | |
3386 | return -ENOMEM; | |
3387 | ||
3388 | rule = (UnitFilePresetRule) { | |
3389 | .pattern = pattern, | |
3390 | .action = PRESET_IGNORE, | |
3391 | }; | |
3392 | } | |
3393 | ||
8965d9f8 | 3394 | if (rule.action) { |
319a4f4b | 3395 | if (!GREEDY_REALLOC(ps.rules, ps.n_rules + 1)) |
8965d9f8 AC |
3396 | return -ENOMEM; |
3397 | ||
52c788e6 | 3398 | ps.rules[ps.n_rules++] = TAKE_STRUCT(rule); |
0ec0deaa LP |
3399 | continue; |
3400 | } | |
3401 | ||
d544d1a4 | 3402 | log_syntax(NULL, LOG_WARNING, *p, n, 0, "Couldn't parse line '%s'. Ignoring.", line); |
83096483 | 3403 | } |
83096483 LP |
3404 | } |
3405 | ||
8f7b2566 | 3406 | ps.initialized = true; |
088d71f8 | 3407 | *presets = TAKE_STRUCT(ps); |
8965d9f8 AC |
3408 | |
3409 | return 0; | |
3410 | } | |
3411 | ||
4c9565ee | 3412 | static int pattern_match_multiple_instances( |
8f7b2566 | 3413 | const UnitFilePresetRule rule, |
4c9565ee RB |
3414 | const char *unit_name, |
3415 | char ***ret) { | |
3416 | ||
3417 | _cleanup_free_ char *templated_name = NULL; | |
3418 | int r; | |
3419 | ||
521a7c9b MY |
3420 | assert(unit_name); |
3421 | ||
4c9565ee | 3422 | /* If no ret is needed or the rule itself does not have instances |
5238e957 | 3423 | * initialized, we return not matching */ |
4c9565ee RB |
3424 | if (!ret || !rule.instances) |
3425 | return 0; | |
3426 | ||
3427 | r = unit_name_template(unit_name, &templated_name); | |
3428 | if (r < 0) | |
3429 | return r; | |
3430 | if (!streq(rule.pattern, templated_name)) | |
3431 | return 0; | |
3432 | ||
3433 | /* Compose a list of specified instances when unit name is a template */ | |
3434 | if (unit_name_is_valid(unit_name, UNIT_NAME_TEMPLATE)) { | |
4c9565ee | 3435 | _cleanup_strv_free_ char **out_strv = NULL; |
4c9565ee RB |
3436 | |
3437 | STRV_FOREACH(iter, rule.instances) { | |
3438 | _cleanup_free_ char *name = NULL; | |
47ab95fe ZJS |
3439 | |
3440 | r = unit_name_replace_instance(unit_name, *iter, &name); | |
4c9565ee RB |
3441 | if (r < 0) |
3442 | return r; | |
47ab95fe ZJS |
3443 | |
3444 | r = strv_consume(&out_strv, TAKE_PTR(name)); | |
4c9565ee RB |
3445 | if (r < 0) |
3446 | return r; | |
3447 | } | |
3448 | ||
3449 | *ret = TAKE_PTR(out_strv); | |
3450 | return 1; | |
3451 | } else { | |
3452 | /* We now know the input unit name is an instance name */ | |
3453 | _cleanup_free_ char *instance_name = NULL; | |
3454 | ||
3455 | r = unit_name_to_instance(unit_name, &instance_name); | |
3456 | if (r < 0) | |
3457 | return r; | |
3458 | ||
3459 | if (strv_find(rule.instances, instance_name)) | |
3460 | return 1; | |
3461 | } | |
3462 | return 0; | |
3463 | } | |
3464 | ||
8f7b2566 | 3465 | static int query_presets(const char *name, const UnitFilePresets *presets, char ***instance_name_list) { |
8965d9f8 | 3466 | PresetAction action = PRESET_UNKNOWN; |
de8be28e | 3467 | |
521a7c9b MY |
3468 | assert(name); |
3469 | assert(presets); | |
3470 | ||
8965d9f8 AC |
3471 | if (!unit_name_is_valid(name, UNIT_NAME_ANY)) |
3472 | return -EINVAL; | |
3473 | ||
521a7c9b MY |
3474 | FOREACH_ARRAY(i, presets->rules, presets->n_rules) |
3475 | if (pattern_match_multiple_instances(*i, name, instance_name_list) > 0 || | |
3476 | fnmatch(i->pattern, name, FNM_NOESCAPE) == 0) { | |
3477 | action = i->action; | |
8965d9f8 AC |
3478 | break; |
3479 | } | |
3480 | ||
3481 | switch (action) { | |
521a7c9b | 3482 | |
8965d9f8 AC |
3483 | case PRESET_UNKNOWN: |
3484 | log_debug("Preset files don't specify rule for %s. Enabling.", name); | |
e77e07f6 | 3485 | return PRESET_ENABLE; |
521a7c9b | 3486 | |
8965d9f8 | 3487 | case PRESET_ENABLE: |
de010b0b | 3488 | if (instance_name_list && *instance_name_list) |
4c9565ee RB |
3489 | STRV_FOREACH(s, *instance_name_list) |
3490 | log_debug("Preset files say enable %s.", *s); | |
de010b0b | 3491 | else |
4c9565ee | 3492 | log_debug("Preset files say enable %s.", name); |
e77e07f6 | 3493 | return PRESET_ENABLE; |
521a7c9b | 3494 | |
8965d9f8 AC |
3495 | case PRESET_DISABLE: |
3496 | log_debug("Preset files say disable %s.", name); | |
e77e07f6 | 3497 | return PRESET_DISABLE; |
521a7c9b | 3498 | |
e77e07f6 DDM |
3499 | case PRESET_IGNORE: |
3500 | log_debug("Preset files say ignore %s.", name); | |
3501 | return PRESET_IGNORE; | |
521a7c9b | 3502 | |
8965d9f8 | 3503 | default: |
04499a70 | 3504 | assert_not_reached(); |
8965d9f8 AC |
3505 | } |
3506 | } | |
3507 | ||
e77e07f6 | 3508 | PresetAction unit_file_query_preset(RuntimeScope scope, const char *root_dir, const char *name, UnitFilePresets *cached) { |
05cdf6a7 | 3509 | _cleanup_(unit_file_presets_done) UnitFilePresets tmp = {}; |
8965d9f8 AC |
3510 | int r; |
3511 | ||
8f7b2566 ZJS |
3512 | if (!cached) |
3513 | cached = &tmp; | |
3514 | if (!cached->initialized) { | |
3515 | r = read_presets(scope, root_dir, cached); | |
3516 | if (r < 0) | |
3517 | return r; | |
3518 | } | |
8965d9f8 | 3519 | |
8f7b2566 | 3520 | return query_presets(name, cached, NULL); |
83096483 LP |
3521 | } |
3522 | ||
0ec0deaa | 3523 | static int execute_preset( |
9b69770a | 3524 | UnitFileFlags file_flags, |
0ec0deaa LP |
3525 | InstallContext *plus, |
3526 | InstallContext *minus, | |
c3e7fba0 | 3527 | const LookupPaths *lp, |
1830ac51 | 3528 | const char *config_path, |
e9e77e44 | 3529 | char * const *files, |
0ec0deaa | 3530 | UnitFilePresetMode mode, |
cd44ec5a | 3531 | InstallChange **changes, |
da6053d0 | 3532 | size_t *n_changes) { |
0ec0deaa | 3533 | |
1830ac51 | 3534 | int r; |
0ec0deaa LP |
3535 | |
3536 | assert(plus); | |
3537 | assert(minus); | |
c3e7fba0 | 3538 | assert(lp); |
1830ac51 | 3539 | assert(config_path); |
0ec0deaa LP |
3540 | |
3541 | if (mode != UNIT_FILE_PRESET_ENABLE_ONLY) { | |
8d190e99 | 3542 | _cleanup_set_free_ Set *remove_symlinks_to = NULL; |
0ec0deaa | 3543 | |
4a84db4c | 3544 | r = install_context_mark_for_removal(minus, lp, &remove_symlinks_to, config_path, changes, n_changes); |
1830ac51 MB |
3545 | if (r < 0) |
3546 | return r; | |
0ec0deaa | 3547 | |
c3e7fba0 | 3548 | r = remove_marked_symlinks(remove_symlinks_to, config_path, lp, false, changes, n_changes); |
1830ac51 MB |
3549 | } else |
3550 | r = 0; | |
0ec0deaa LP |
3551 | |
3552 | if (mode != UNIT_FILE_PRESET_DISABLE_ONLY) { | |
1830ac51 MB |
3553 | int q; |
3554 | ||
0ec0deaa | 3555 | /* Returns number of symlinks that where supposed to be installed. */ |
4a84db4c | 3556 | q = install_context_apply(plus, lp, |
ad5fdd39 | 3557 | file_flags | UNIT_FILE_IGNORE_AUXILIARY_FAILURE, |
4a84db4c ZJS |
3558 | config_path, |
3559 | SEARCH_LOAD, changes, n_changes); | |
1830ac51 MB |
3560 | if (r >= 0) { |
3561 | if (q < 0) | |
3562 | r = q; | |
3563 | else | |
3564 | r += q; | |
3565 | } | |
0ec0deaa LP |
3566 | } |
3567 | ||
3568 | return r; | |
3569 | } | |
3570 | ||
3571 | static int preset_prepare_one( | |
4870133b | 3572 | RuntimeScope scope, |
0ec0deaa LP |
3573 | InstallContext *plus, |
3574 | InstallContext *minus, | |
c3e7fba0 | 3575 | LookupPaths *lp, |
af3d8113 | 3576 | const char *name, |
8f7b2566 | 3577 | const UnitFilePresets *presets, |
cd44ec5a | 3578 | InstallChange **changes, |
da6053d0 | 3579 | size_t *n_changes) { |
0ec0deaa | 3580 | |
4a84db4c | 3581 | _cleanup_(install_context_done) InstallContext tmp = { .scope = scope }; |
4c9565ee | 3582 | _cleanup_strv_free_ char **instance_name_list = NULL; |
0047d54d | 3583 | InstallInfo *info; |
0ec0deaa LP |
3584 | int r; |
3585 | ||
11e11fd5 | 3586 | if (install_info_find(plus, name) || install_info_find(minus, name)) |
0ec0deaa LP |
3587 | return 0; |
3588 | ||
4a84db4c ZJS |
3589 | r = install_info_discover(&tmp, lp, name, SEARCH_FOLLOW_CONFIG_SYMLINKS, |
3590 | &info, changes, n_changes); | |
11e11fd5 ZJS |
3591 | if (r < 0) |
3592 | return r; | |
4a84db4c ZJS |
3593 | if (!streq(name, info->name)) { |
3594 | log_debug("Skipping %s because it is an alias for %s.", name, info->name); | |
11e11fd5 ZJS |
3595 | return 0; |
3596 | } | |
3597 | ||
4c9565ee | 3598 | r = query_presets(name, presets, &instance_name_list); |
0ec0deaa LP |
3599 | if (r < 0) |
3600 | return r; | |
3601 | ||
e77e07f6 | 3602 | if (r == PRESET_ENABLE) { |
de010b0b | 3603 | if (instance_name_list) |
4c9565ee | 3604 | STRV_FOREACH(s, instance_name_list) { |
4a84db4c ZJS |
3605 | r = install_info_discover_and_check(plus, lp, *s, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS, |
3606 | &info, changes, n_changes); | |
4c9565ee RB |
3607 | if (r < 0) |
3608 | return r; | |
3609 | } | |
de010b0b | 3610 | else { |
4a84db4c ZJS |
3611 | r = install_info_discover_and_check(plus, lp, name, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS, |
3612 | &info, changes, n_changes); | |
4c9565ee RB |
3613 | if (r < 0) |
3614 | return r; | |
3615 | } | |
0ec0deaa | 3616 | |
e77e07f6 | 3617 | } else if (r == PRESET_DISABLE) |
4a84db4c ZJS |
3618 | r = install_info_discover(minus, lp, name, SEARCH_FOLLOW_CONFIG_SYMLINKS, |
3619 | &info, changes, n_changes); | |
0ec0deaa LP |
3620 | |
3621 | return r; | |
3622 | } | |
3623 | ||
83096483 | 3624 | int unit_file_preset( |
4870133b | 3625 | RuntimeScope scope, |
9b69770a | 3626 | UnitFileFlags file_flags, |
83096483 | 3627 | const char *root_dir, |
e9e77e44 | 3628 | char * const *names, |
d309c1c3 | 3629 | UnitFilePresetMode mode, |
cd44ec5a | 3630 | InstallChange **changes, |
da6053d0 | 3631 | size_t *n_changes) { |
83096483 | 3632 | |
59ccf93d | 3633 | _cleanup_(install_context_done) InstallContext plus = {}, minus = {}; |
7dfc7139 | 3634 | _cleanup_(lookup_paths_done) LookupPaths lp = {}; |
05cdf6a7 | 3635 | _cleanup_(unit_file_presets_done) UnitFilePresets presets = {}; |
1830ac51 | 3636 | const char *config_path; |
0ec0deaa | 3637 | int r; |
83096483 LP |
3638 | |
3639 | assert(scope >= 0); | |
4870133b | 3640 | assert(scope < _RUNTIME_SCOPE_MAX); |
b364c4de | 3641 | assert(mode < _UNIT_FILE_PRESET_MODE_MAX); |
83096483 | 3642 | |
c3e7fba0 | 3643 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
83096483 LP |
3644 | if (r < 0) |
3645 | return r; | |
3646 | ||
c3e7fba0 | 3647 | config_path = (file_flags & UNIT_FILE_RUNTIME) ? lp.runtime_config : lp.persistent_config; |
1830ac51 MB |
3648 | if (!config_path) |
3649 | return -ENXIO; | |
3650 | ||
8965d9f8 AC |
3651 | r = read_presets(scope, root_dir, &presets); |
3652 | if (r < 0) | |
3653 | return r; | |
83096483 | 3654 | |
0f87041f ZJS |
3655 | STRV_FOREACH(name, names) { |
3656 | r = preset_prepare_one(scope, &plus, &minus, &lp, *name, &presets, changes, n_changes); | |
83096483 | 3657 | if (r < 0) |
d9e5e694 | 3658 | return r; |
83096483 LP |
3659 | } |
3660 | ||
0f87041f | 3661 | return execute_preset(file_flags, &plus, &minus, &lp, config_path, names, mode, changes, n_changes); |
d309c1c3 LP |
3662 | } |
3663 | ||
3664 | int unit_file_preset_all( | |
4870133b | 3665 | RuntimeScope scope, |
9b69770a | 3666 | UnitFileFlags file_flags, |
d309c1c3 LP |
3667 | const char *root_dir, |
3668 | UnitFilePresetMode mode, | |
cd44ec5a | 3669 | InstallChange **changes, |
da6053d0 | 3670 | size_t *n_changes) { |
d309c1c3 | 3671 | |
59ccf93d | 3672 | _cleanup_(install_context_done) InstallContext plus = {}, minus = {}; |
7dfc7139 | 3673 | _cleanup_(lookup_paths_done) LookupPaths lp = {}; |
05cdf6a7 | 3674 | _cleanup_(unit_file_presets_done) UnitFilePresets presets = {}; |
1830ac51 | 3675 | const char *config_path = NULL; |
0ec0deaa | 3676 | int r; |
d309c1c3 LP |
3677 | |
3678 | assert(scope >= 0); | |
4870133b | 3679 | assert(scope < _RUNTIME_SCOPE_MAX); |
b364c4de | 3680 | assert(mode < _UNIT_FILE_PRESET_MODE_MAX); |
d309c1c3 | 3681 | |
c3e7fba0 | 3682 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
d309c1c3 LP |
3683 | if (r < 0) |
3684 | return r; | |
3685 | ||
c3e7fba0 | 3686 | config_path = (file_flags & UNIT_FILE_RUNTIME) ? lp.runtime_config : lp.persistent_config; |
1830ac51 MB |
3687 | if (!config_path) |
3688 | return -ENXIO; | |
3689 | ||
8965d9f8 AC |
3690 | r = read_presets(scope, root_dir, &presets); |
3691 | if (r < 0) | |
3692 | return r; | |
3693 | ||
a4f0e0da | 3694 | r = 0; |
c3e7fba0 | 3695 | STRV_FOREACH(i, lp.search_path) { |
d309c1c3 | 3696 | _cleanup_closedir_ DIR *d = NULL; |
d309c1c3 | 3697 | |
401017e0 | 3698 | d = opendir(*i); |
d309c1c3 | 3699 | if (!d) { |
a4f0e0da ZJS |
3700 | if (errno != ENOENT) |
3701 | RET_GATHER(r, -errno); | |
3702 | continue; | |
d309c1c3 LP |
3703 | } |
3704 | ||
a4f0e0da ZJS |
3705 | FOREACH_DIRENT(de, d, RET_GATHER(r, -errno)) { |
3706 | int k; | |
1830ac51 | 3707 | |
7410616c | 3708 | if (!unit_name_is_valid(de->d_name, UNIT_NAME_ANY)) |
d309c1c3 LP |
3709 | continue; |
3710 | ||
0ec0deaa | 3711 | if (!IN_SET(de->d_type, DT_LNK, DT_REG)) |
d309c1c3 LP |
3712 | continue; |
3713 | ||
a4f0e0da ZJS |
3714 | k = preset_prepare_one(scope, &plus, &minus, &lp, de->d_name, &presets, changes, n_changes); |
3715 | if (k < 0 && | |
3716 | !IN_SET(k, -EEXIST, | |
3717 | -ERFKILL, | |
3718 | -EADDRNOTAVAIL, | |
3719 | -ETXTBSY, | |
3720 | -EBADSLT, | |
3721 | -EIDRM, | |
3722 | -EUCLEAN, | |
3723 | -ELOOP, | |
3724 | -EXDEV, | |
3725 | -ENOENT, | |
3726 | -ENOLINK, | |
3727 | -EUNATCH)) | |
4a203a51 | 3728 | /* Ignore generated/transient/missing/invalid units when applying preset, propagate other errors. |
a4f0e0da ZJS |
3729 | * Coordinate with install_change_dump_error() above. */ |
3730 | RET_GATHER(r, k); | |
d309c1c3 LP |
3731 | } |
3732 | } | |
3733 | ||
4a84db4c | 3734 | return execute_preset(file_flags, &plus, &minus, &lp, config_path, NULL, mode, changes, n_changes); |
83096483 LP |
3735 | } |
3736 | ||
27681563 | 3737 | static UnitFileList* unit_file_list_free(UnitFileList *f) { |
59ccf93d | 3738 | if (!f) |
75db809a | 3739 | return NULL; |
d9e5e694 | 3740 | |
59ccf93d | 3741 | free(f->path); |
75db809a | 3742 | return mfree(f); |
d9e5e694 | 3743 | } |
59ccf93d | 3744 | |
27681563 | 3745 | DEFINE_TRIVIAL_CLEANUP_FUNC(UnitFileList*, unit_file_list_free); |
d9e5e694 | 3746 | |
ca3c95c1 MY |
3747 | DEFINE_PRIVATE_HASH_OPS_FULL(unit_file_list_hash_ops_free_free, |
3748 | char, string_hash_func, string_compare_func, free, | |
3749 | UnitFileList, unit_file_list_free); | |
c92899fd | 3750 | |
83096483 | 3751 | int unit_file_get_list( |
4870133b | 3752 | RuntimeScope scope, |
83096483 | 3753 | const char *root_dir, |
ca3c95c1 MY |
3754 | char * const *states, |
3755 | char * const *patterns, | |
3756 | Hashmap **ret) { | |
83096483 | 3757 | |
7dfc7139 | 3758 | _cleanup_(lookup_paths_done) LookupPaths lp = {}; |
ca3c95c1 | 3759 | _cleanup_hashmap_free_ Hashmap *h = NULL; |
83096483 LP |
3760 | int r; |
3761 | ||
3762 | assert(scope >= 0); | |
4870133b | 3763 | assert(scope < _RUNTIME_SCOPE_MAX); |
ca3c95c1 | 3764 | assert(ret); |
83096483 | 3765 | |
c3e7fba0 | 3766 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
83096483 LP |
3767 | if (r < 0) |
3768 | return r; | |
3769 | ||
c3e7fba0 | 3770 | STRV_FOREACH(dirname, lp.search_path) { |
da39f6a6 | 3771 | _cleanup_closedir_ DIR *d = NULL; |
83096483 | 3772 | |
9c894b85 | 3773 | d = opendir(*dirname); |
83096483 LP |
3774 | if (!d) { |
3775 | if (errno == ENOENT) | |
3776 | continue; | |
a1feacf7 | 3777 | if (IN_SET(errno, ENOTDIR, EACCES)) { |
9c894b85 | 3778 | log_debug_errno(errno, "Failed to open \"%s\": %m", *dirname); |
a1feacf7 ZJS |
3779 | continue; |
3780 | } | |
83096483 | 3781 | |
d9e5e694 | 3782 | return -errno; |
83096483 LP |
3783 | } |
3784 | ||
d25e100b | 3785 | FOREACH_DIRENT(de, d, return -errno) { |
ca3c95c1 MY |
3786 | if (!IN_SET(de->d_type, DT_LNK, DT_REG)) |
3787 | continue; | |
3788 | ||
3789 | if (hashmap_contains(h, de->d_name)) | |
3790 | continue; | |
83096483 | 3791 | |
7410616c | 3792 | if (!unit_name_is_valid(de->d_name, UNIT_NAME_ANY)) |
83096483 LP |
3793 | continue; |
3794 | ||
313fe66f | 3795 | if (!strv_fnmatch_or_empty(patterns, de->d_name, FNM_NOESCAPE)) |
3796 | continue; | |
3797 | ||
ca3c95c1 | 3798 | UnitFileState state; |
83096483 | 3799 | |
ca3c95c1 MY |
3800 | r = unit_file_lookup_state(scope, &lp, de->d_name, &state); |
3801 | if (r < 0) | |
3802 | state = UNIT_FILE_BAD; | |
3803 | ||
3804 | if (!strv_isempty(states) && | |
3805 | !strv_contains(states, unit_file_state_to_string(state))) | |
83096483 LP |
3806 | continue; |
3807 | ||
ca3c95c1 | 3808 | _cleanup_(unit_file_list_freep) UnitFileList *f = new(UnitFileList, 1); |
d9e5e694 ZJS |
3809 | if (!f) |
3810 | return -ENOMEM; | |
83096483 | 3811 | |
ca3c95c1 MY |
3812 | *f = (UnitFileList) { |
3813 | .path = path_make_absolute(de->d_name, *dirname), | |
3814 | .state = state, | |
3815 | }; | |
d9e5e694 ZJS |
3816 | if (!f->path) |
3817 | return -ENOMEM; | |
83096483 | 3818 | |
ca3c95c1 MY |
3819 | _cleanup_free_ char *unit_name = strdup(de->d_name); |
3820 | if (!unit_name) | |
3821 | return -ENOMEM; | |
313fe66f | 3822 | |
ca3c95c1 | 3823 | r = hashmap_ensure_put(&h, &unit_file_list_hash_ops_free_free, unit_name, f); |
d9e5e694 ZJS |
3824 | if (r < 0) |
3825 | return r; | |
ca3c95c1 | 3826 | assert(r > 0); |
0ec0deaa | 3827 | |
ca3c95c1 MY |
3828 | TAKE_PTR(unit_name); |
3829 | TAKE_PTR(f); | |
83096483 LP |
3830 | } |
3831 | } | |
3832 | ||
ca3c95c1 | 3833 | *ret = TAKE_PTR(h); |
77cd2c87 | 3834 | return 0; |
83096483 LP |
3835 | } |
3836 | ||
3837 | static const char* const unit_file_state_table[_UNIT_FILE_STATE_MAX] = { | |
babccf14 | 3838 | [UNIT_FILE_ENABLED] = "enabled", |
771faa9a | 3839 | [UNIT_FILE_ENABLED_RUNTIME] = "enabled-runtime", |
babccf14 ZJS |
3840 | [UNIT_FILE_LINKED] = "linked", |
3841 | [UNIT_FILE_LINKED_RUNTIME] = "linked-runtime", | |
15d7ab87 | 3842 | [UNIT_FILE_ALIAS] = "alias", |
babccf14 ZJS |
3843 | [UNIT_FILE_MASKED] = "masked", |
3844 | [UNIT_FILE_MASKED_RUNTIME] = "masked-runtime", | |
3845 | [UNIT_FILE_STATIC] = "static", | |
3846 | [UNIT_FILE_DISABLED] = "disabled", | |
3847 | [UNIT_FILE_INDIRECT] = "indirect", | |
3848 | [UNIT_FILE_GENERATED] = "generated", | |
3849 | [UNIT_FILE_TRANSIENT] = "transient", | |
3850 | [UNIT_FILE_BAD] = "bad", | |
83096483 LP |
3851 | }; |
3852 | ||
3853 | DEFINE_STRING_TABLE_LOOKUP(unit_file_state, UnitFileState); | |
c0576cd6 | 3854 | |
f8662fee | 3855 | static const char* const install_change_type_table[_INSTALL_CHANGE_TYPE_MAX] = { |
1308f72e ZJS |
3856 | [INSTALL_CHANGE_SYMLINK] = "symlink", |
3857 | [INSTALL_CHANGE_UNLINK] = "unlink", | |
3858 | [INSTALL_CHANGE_IS_MASKED] = "masked", | |
bf3b0d5f | 3859 | [INSTALL_CHANGE_IS_MASKED_GENERATOR] = "masked by generator", |
1308f72e ZJS |
3860 | [INSTALL_CHANGE_IS_DANGLING] = "dangling", |
3861 | [INSTALL_CHANGE_DESTINATION_NOT_PRESENT] = "destination not present", | |
3862 | [INSTALL_CHANGE_AUXILIARY_FAILED] = "auxiliary unit failed", | |
c0576cd6 LP |
3863 | }; |
3864 | ||
f8662fee | 3865 | DEFINE_STRING_TABLE_LOOKUP(install_change_type, InstallChangeType); |
d309c1c3 | 3866 | |
b364c4de | 3867 | static const char* const unit_file_preset_mode_table[_UNIT_FILE_PRESET_MODE_MAX] = { |
babccf14 ZJS |
3868 | [UNIT_FILE_PRESET_FULL] = "full", |
3869 | [UNIT_FILE_PRESET_ENABLE_ONLY] = "enable-only", | |
d309c1c3 LP |
3870 | [UNIT_FILE_PRESET_DISABLE_ONLY] = "disable-only", |
3871 | }; | |
3872 | ||
3873 | DEFINE_STRING_TABLE_LOOKUP(unit_file_preset_mode, UnitFilePresetMode); |