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db9ecf05 | 1 | /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
83096483 LP |
2 | |
3 | #include <errno.h> | |
4 | #include <fcntl.h> | |
83096483 | 5 | #include <fnmatch.h> |
a8fbdf54 TA |
6 | #include <limits.h> |
7 | #include <stddef.h> | |
8 | #include <stdio.h> | |
9 | #include <stdlib.h> | |
07630cea | 10 | #include <unistd.h> |
83096483 | 11 | |
b5efdb8a | 12 | #include "alloc-util.h" |
d41f08bd | 13 | #include "bus-common-errors.h" |
f461a28d | 14 | #include "chase.h" |
07630cea LP |
15 | #include "conf-files.h" |
16 | #include "conf-parser.h" | |
28db6fbf | 17 | #include "constants.h" |
a0956174 | 18 | #include "dirent-util.h" |
93419a96 | 19 | #include "errno-list.h" |
a8fbdf54 | 20 | #include "extract-word.h" |
a0956174 | 21 | #include "fd-util.h" |
0ec0deaa | 22 | #include "fileio.h" |
f4f15635 | 23 | #include "fs-util.h" |
83096483 | 24 | #include "hashmap.h" |
07630cea | 25 | #include "install-printf.h" |
a0956174 | 26 | #include "install.h" |
a760db24 | 27 | #include "locale-util.h" |
a8fbdf54 TA |
28 | #include "log.h" |
29 | #include "macro.h" | |
35cd0ba5 | 30 | #include "mkdir-label.h" |
83096483 | 31 | #include "path-lookup.h" |
07630cea | 32 | #include "path-util.h" |
344ca755 | 33 | #include "rm-rf.h" |
07630cea LP |
34 | #include "set.h" |
35 | #include "special.h" | |
8fcde012 | 36 | #include "stat-util.h" |
8b43440b | 37 | #include "string-table.h" |
07630cea | 38 | #include "string-util.h" |
83096483 | 39 | #include "strv.h" |
5cfa33e0 | 40 | #include "unit-file.h" |
83096483 | 41 | |
0ec0deaa LP |
42 | #define UNIT_FILE_FOLLOW_SYMLINK_MAX 64 |
43 | ||
44 | typedef enum SearchFlags { | |
ef31828d LP |
45 | SEARCH_LOAD = 1 << 0, |
46 | SEARCH_FOLLOW_CONFIG_SYMLINKS = 1 << 1, | |
47 | SEARCH_DROPIN = 1 << 2, | |
0ec0deaa LP |
48 | } SearchFlags; |
49 | ||
83096483 | 50 | typedef struct { |
4870133b | 51 | RuntimeScope scope; |
0ec0deaa LP |
52 | OrderedHashmap *will_process; |
53 | OrderedHashmap *have_processed; | |
83096483 LP |
54 | } InstallContext; |
55 | ||
8f7b2566 | 56 | struct UnitFilePresetRule { |
8965d9f8 AC |
57 | char *pattern; |
58 | PresetAction action; | |
4c9565ee | 59 | char **instances; |
8f7b2566 | 60 | }; |
8965d9f8 | 61 | |
e77e07f6 DDM |
62 | /* NB! strings use past tense. */ |
63 | static const char *const preset_action_past_tense_table[_PRESET_ACTION_MAX] = { | |
64 | [PRESET_UNKNOWN] = "unknown", | |
65 | [PRESET_ENABLE] = "enabled", | |
66 | [PRESET_DISABLE] = "disabled", | |
67 | [PRESET_IGNORE] = "ignored", | |
68 | }; | |
69 | ||
70 | DEFINE_STRING_TABLE_LOOKUP_TO_STRING(preset_action_past_tense, PresetAction); | |
71 | ||
0047d54d | 72 | static bool install_info_has_rules(const InstallInfo *i) { |
7a7ec2bf ZJS |
73 | assert(i); |
74 | ||
75 | return !strv_isempty(i->aliases) || | |
76 | !strv_isempty(i->wanted_by) || | |
38f90179 MY |
77 | !strv_isempty(i->required_by) || |
78 | !strv_isempty(i->upheld_by); | |
7a7ec2bf ZJS |
79 | } |
80 | ||
0047d54d | 81 | static bool install_info_has_also(const InstallInfo *i) { |
7a7ec2bf ZJS |
82 | assert(i); |
83 | ||
84 | return !strv_isempty(i->also); | |
85 | } | |
86 | ||
52c788e6 DT |
87 | static void unit_file_preset_rule_done(UnitFilePresetRule *rule) { |
88 | assert(rule); | |
89 | ||
90 | free(rule->pattern); | |
91 | strv_free(rule->instances); | |
92 | } | |
93 | ||
05cdf6a7 | 94 | void unit_file_presets_done(UnitFilePresets *p) { |
8965d9f8 AC |
95 | if (!p) |
96 | return; | |
97 | ||
f52477d6 DT |
98 | FOREACH_ARRAY(rule, p->rules, p->n_rules) |
99 | unit_file_preset_rule_done(rule); | |
8965d9f8 AC |
100 | |
101 | free(p->rules); | |
102 | p->n_rules = 0; | |
103 | } | |
104 | ||
318031fd ZJS |
105 | static const char *const install_mode_table[_INSTALL_MODE_MAX] = { |
106 | [INSTALL_MODE_REGULAR] = "regular", | |
107 | [INSTALL_MODE_LINKED] = "linked", | |
108 | [INSTALL_MODE_ALIAS] = "alias", | |
109 | [INSTALL_MODE_MASKED] = "masked", | |
64f9280e ZJS |
110 | }; |
111 | ||
318031fd | 112 | DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(install_mode, InstallMode); |
64f9280e | 113 | |
c3e7fba0 | 114 | static int in_search_path(const LookupPaths *lp, const char *path) { |
8f294b45 | 115 | _cleanup_free_ char *parent = NULL; |
45519d13 | 116 | int r; |
8f294b45 | 117 | |
a6f318a5 | 118 | /* Check if 'path' is in lp->search_path. */ |
8f294b45 | 119 | |
05adb256 MY |
120 | assert(lp); |
121 | assert(path); | |
122 | ||
123 | r = path_extract_directory(path, &parent); | |
45519d13 LP |
124 | if (r < 0) |
125 | return r; | |
8f294b45 | 126 | |
05adb256 | 127 | return path_strv_contains(lp->search_path, parent); |
a6f318a5 ZJS |
128 | } |
129 | ||
05adb256 | 130 | static bool underneath_search_path(const LookupPaths *lp, const char *path) { |
a6f318a5 ZJS |
131 | /* Check if 'path' is underneath lp->search_path. */ |
132 | ||
05adb256 MY |
133 | assert(lp); |
134 | assert(path); | |
135 | ||
136 | return path_startswith_strv(path, lp->search_path); | |
8f294b45 LP |
137 | } |
138 | ||
c3e7fba0 | 139 | static const char* skip_root(const char *root_dir, const char *path) { |
8f9364f9 | 140 | assert(path); |
401017e0 | 141 | |
c3e7fba0 | 142 | if (!root_dir) |
8f9364f9 | 143 | return path; |
401017e0 | 144 | |
c3e7fba0 | 145 | const char *e = path_startswith(path, root_dir); |
8f9364f9 LP |
146 | if (!e) |
147 | return NULL; | |
148 | ||
149 | /* Make sure the returned path starts with a slash */ | |
150 | if (e[0] != '/') { | |
151 | if (e == path || e[-1] != '/') | |
152 | return NULL; | |
401017e0 | 153 | |
8f9364f9 | 154 | e--; |
401017e0 LP |
155 | } |
156 | ||
8f9364f9 | 157 | return e; |
401017e0 LP |
158 | } |
159 | ||
c3e7fba0 | 160 | static int path_is_generator(const LookupPaths *lp, const char *path) { |
f4139308 | 161 | _cleanup_free_ char *parent = NULL; |
45519d13 | 162 | int r; |
f4139308 | 163 | |
c3e7fba0 | 164 | assert(lp); |
f4139308 LP |
165 | assert(path); |
166 | ||
45519d13 LP |
167 | r = path_extract_directory(path, &parent); |
168 | if (r < 0) | |
169 | return r; | |
f4139308 | 170 | |
acb27fba ZJS |
171 | return PATH_IN_SET(parent, |
172 | lp->generator, | |
173 | lp->generator_early, | |
174 | lp->generator_late); | |
f4139308 LP |
175 | } |
176 | ||
c3e7fba0 | 177 | static int path_is_transient(const LookupPaths *lp, const char *path) { |
e4fca67f | 178 | _cleanup_free_ char *parent = NULL; |
45519d13 | 179 | int r; |
e4fca67f | 180 | |
c3e7fba0 | 181 | assert(lp); |
e4fca67f LP |
182 | assert(path); |
183 | ||
45519d13 LP |
184 | r = path_extract_directory(path, &parent); |
185 | if (r < 0) | |
186 | return r; | |
e4fca67f | 187 | |
1934242b | 188 | return path_equal(parent, lp->transient); |
e4fca67f LP |
189 | } |
190 | ||
c3e7fba0 | 191 | static int path_is_control(const LookupPaths *lp, const char *path) { |
e1c5c2b0 | 192 | _cleanup_free_ char *parent = NULL; |
45519d13 | 193 | int r; |
0ec0deaa | 194 | |
c3e7fba0 | 195 | assert(lp); |
0ec0deaa LP |
196 | assert(path); |
197 | ||
45519d13 LP |
198 | r = path_extract_directory(path, &parent); |
199 | if (r < 0) | |
200 | return r; | |
0ec0deaa | 201 | |
acb27fba ZJS |
202 | return PATH_IN_SET(parent, |
203 | lp->persistent_control, | |
204 | lp->runtime_control); | |
344ca755 LP |
205 | } |
206 | ||
c3e7fba0 | 207 | static int path_is_config(const LookupPaths *lp, const char *path, bool check_parent) { |
344ca755 | 208 | _cleanup_free_ char *parent = NULL; |
45519d13 | 209 | int r; |
344ca755 | 210 | |
c3e7fba0 | 211 | assert(lp); |
344ca755 LP |
212 | assert(path); |
213 | ||
d7604756 ZJS |
214 | /* Note that we do *not* have generic checks for /etc or /run in place, since with |
215 | * them we couldn't discern configuration from transient or generated units */ | |
0ec0deaa | 216 | |
dfead90d | 217 | if (check_parent) { |
45519d13 LP |
218 | r = path_extract_directory(path, &parent); |
219 | if (r < 0) | |
220 | return r; | |
dfead90d LP |
221 | |
222 | path = parent; | |
223 | } | |
0ec0deaa | 224 | |
acb27fba ZJS |
225 | return PATH_IN_SET(path, |
226 | lp->persistent_config, | |
227 | lp->runtime_config); | |
0ec0deaa LP |
228 | } |
229 | ||
c3e7fba0 | 230 | static int path_is_runtime(const LookupPaths *lp, const char *path, bool check_parent) { |
385eb996 | 231 | _cleanup_free_ char *parent = NULL; |
401017e0 | 232 | const char *rpath; |
45519d13 | 233 | int r; |
385eb996 | 234 | |
c3e7fba0 | 235 | assert(lp); |
385eb996 LP |
236 | assert(path); |
237 | ||
d7604756 ZJS |
238 | /* Everything in /run is considered runtime. On top of that we also add |
239 | * explicit checks for the various runtime directories, as safety net. */ | |
344ca755 | 240 | |
c3e7fba0 | 241 | rpath = skip_root(lp->root_dir, path); |
401017e0 | 242 | if (rpath && path_startswith(rpath, "/run")) |
385eb996 LP |
243 | return true; |
244 | ||
dfead90d | 245 | if (check_parent) { |
45519d13 LP |
246 | r = path_extract_directory(path, &parent); |
247 | if (r < 0) | |
248 | return r; | |
385eb996 | 249 | |
dfead90d LP |
250 | path = parent; |
251 | } | |
252 | ||
acb27fba ZJS |
253 | return PATH_IN_SET(path, |
254 | lp->runtime_config, | |
255 | lp->generator, | |
256 | lp->generator_early, | |
257 | lp->generator_late, | |
258 | lp->transient, | |
259 | lp->runtime_control); | |
344ca755 LP |
260 | } |
261 | ||
c3e7fba0 | 262 | static int path_is_vendor_or_generator(const LookupPaths *lp, const char *path) { |
344ca755 LP |
263 | const char *rpath; |
264 | ||
c3e7fba0 | 265 | assert(lp); |
344ca755 LP |
266 | assert(path); |
267 | ||
c3e7fba0 | 268 | rpath = skip_root(lp->root_dir, path); |
344ca755 LP |
269 | if (!rpath) |
270 | return 0; | |
271 | ||
272 | if (path_startswith(rpath, "/usr")) | |
273 | return true; | |
274 | ||
c3e7fba0 | 275 | if (path_is_generator(lp, rpath)) |
efdbf5fe JC |
276 | return true; |
277 | ||
835cf75a | 278 | return path_equal(rpath, SYSTEM_DATA_UNIT_DIR); |
385eb996 LP |
279 | } |
280 | ||
c3e7fba0 ZJS |
281 | static const char* config_path_from_flags(const LookupPaths *lp, UnitFileFlags flags) { |
282 | assert(lp); | |
83654007 LB |
283 | |
284 | if (FLAGS_SET(flags, UNIT_FILE_PORTABLE)) | |
c3e7fba0 | 285 | return FLAGS_SET(flags, UNIT_FILE_RUNTIME) ? lp->runtime_attached : lp->persistent_attached; |
83654007 | 286 | else |
c3e7fba0 | 287 | return FLAGS_SET(flags, UNIT_FILE_RUNTIME) ? lp->runtime_config : lp->persistent_config; |
83654007 LB |
288 | } |
289 | ||
94e7298d | 290 | InstallChangeType install_changes_add( |
cd44ec5a | 291 | InstallChange **changes, |
da6053d0 | 292 | size_t *n_changes, |
f8662fee | 293 | InstallChangeType type, /* INSTALL_CHANGE_SYMLINK, _UNLINK, _IS_MASKED, _IS_DANGLING, … if positive or errno if negative */ |
0ec0deaa LP |
294 | const char *path, |
295 | const char *source) { | |
296 | ||
12bf0ae4 | 297 | _cleanup_free_ char *p = NULL, *s = NULL; |
cd44ec5a | 298 | InstallChange *c; |
660087dc | 299 | int r; |
0ec0deaa | 300 | |
0ec0deaa | 301 | assert(!changes == !n_changes); |
f8662fee | 302 | assert(INSTALL_CHANGE_TYPE_VALID(type)); |
93419a96 | 303 | |
4a4af850 ZJS |
304 | /* Message formatting requires <path> to be set. */ |
305 | assert(path); | |
306 | ||
94e7298d ZJS |
307 | /* Register a change or error. Note that the return value may be the error |
308 | * that was passed in, or -ENOMEM generated internally. */ | |
309 | ||
0ec0deaa | 310 | if (!changes) |
94e7298d | 311 | return type; |
0ec0deaa | 312 | |
cd44ec5a | 313 | c = reallocarray(*changes, *n_changes + 1, sizeof(InstallChange)); |
0ec0deaa LP |
314 | if (!c) |
315 | return -ENOMEM; | |
0ec0deaa | 316 | *changes = c; |
0ec0deaa | 317 | |
660087dc ZJS |
318 | r = path_simplify_alloc(path, &p); |
319 | if (r < 0) | |
320 | return r; | |
93419a96 | 321 | |
660087dc ZJS |
322 | r = path_simplify_alloc(source, &s); |
323 | if (r < 0) | |
324 | return r; | |
93419a96 | 325 | |
cd44ec5a | 326 | c[(*n_changes)++] = (InstallChange) { |
f8662fee | 327 | .type = type, |
93419a96 LP |
328 | .path = TAKE_PTR(p), |
329 | .source = TAKE_PTR(s), | |
330 | }; | |
0ec0deaa | 331 | |
94e7298d | 332 | return type; |
0ec0deaa LP |
333 | } |
334 | ||
cd44ec5a | 335 | void install_changes_free(InstallChange *changes, size_t n_changes) { |
0ec0deaa LP |
336 | assert(changes || n_changes == 0); |
337 | ||
b412274f MY |
338 | FOREACH_ARRAY(i, changes, n_changes) { |
339 | free(i->path); | |
340 | free(i->source); | |
0ec0deaa LP |
341 | } |
342 | ||
343 | free(changes); | |
344 | } | |
345 | ||
d41f08bd MY |
346 | static void install_change_dump_success(const InstallChange *change) { |
347 | assert(change); | |
348 | assert(change->path); | |
af3d8113 | 349 | |
d41f08bd | 350 | switch (change->type) { |
af3d8113 | 351 | |
d41f08bd MY |
352 | case INSTALL_CHANGE_SYMLINK: |
353 | return log_info("Created symlink '%s' %s '%s'.", | |
354 | change->path, special_glyph(SPECIAL_GLYPH_ARROW_RIGHT), change->source); | |
af3d8113 | 355 | |
d41f08bd MY |
356 | case INSTALL_CHANGE_UNLINK: |
357 | return log_info("Removed '%s'.", change->path); | |
5ad58fea | 358 | |
d41f08bd MY |
359 | case INSTALL_CHANGE_IS_MASKED: |
360 | return log_info("Unit %s is masked, ignoring.", change->path); | |
361 | ||
362 | case INSTALL_CHANGE_IS_MASKED_GENERATOR: | |
363 | return log_info("Unit %s is masked via a generator and cannot be unmasked, skipping.", change->path); | |
364 | ||
365 | case INSTALL_CHANGE_IS_DANGLING: | |
366 | return log_info("Unit %s is an alias to a non-existent unit, ignoring.", change->path); | |
367 | ||
368 | case INSTALL_CHANGE_DESTINATION_NOT_PRESENT: | |
369 | return log_warning("Unit %s is added as a dependency to a non-existent unit %s.", | |
370 | change->source, change->path); | |
371 | ||
372 | case INSTALL_CHANGE_AUXILIARY_FAILED: | |
373 | return log_warning("Failed to enable auxiliary unit %s, ignoring.", change->path); | |
374 | ||
375 | default: | |
376 | assert_not_reached(); | |
377 | } | |
378 | } | |
379 | ||
380 | int install_change_dump_error(const InstallChange *change, char **ret_errmsg, const char **ret_bus_error) { | |
381 | char *m; | |
382 | const char *bus_error; | |
383 | ||
384 | /* Returns 0: known error and ret_errmsg formatted | |
385 | * < 0: non-recognizable error */ | |
386 | ||
387 | assert(change); | |
388 | assert(change->path); | |
389 | assert(change->type < 0); | |
390 | assert(ret_errmsg); | |
391 | ||
392 | switch (change->type) { | |
393 | ||
394 | case -EEXIST: | |
395 | m = strjoin("File '", change->path, "' already exists", | |
396 | change->source ? " and is a symlink to " : NULL, change->source); | |
397 | bus_error = BUS_ERROR_UNIT_EXISTS; | |
398 | break; | |
399 | ||
400 | case -ERFKILL: | |
401 | m = strjoin("Unit ", change->path, " is masked"); | |
402 | bus_error = BUS_ERROR_UNIT_MASKED; | |
403 | break; | |
404 | ||
405 | case -EADDRNOTAVAIL: | |
406 | m = strjoin("Unit ", change->path, " is transient or generated"); | |
407 | bus_error = BUS_ERROR_UNIT_GENERATED; | |
408 | break; | |
409 | ||
410 | case -ETXTBSY: | |
411 | m = strjoin("File '", change->path, "' is under the systemd unit hierarchy already"); | |
412 | bus_error = BUS_ERROR_UNIT_BAD_PATH; | |
413 | break; | |
414 | ||
415 | case -EBADSLT: | |
416 | m = strjoin("Invalid specifier in unit ", change->path); | |
417 | bus_error = BUS_ERROR_BAD_UNIT_SETTING; | |
418 | break; | |
419 | ||
420 | case -EIDRM: | |
421 | m = strjoin("Refusing to operate on template unit ", change->source, | |
422 | " when destination unit ", change->path, " is a non-template unit"); | |
423 | bus_error = BUS_ERROR_BAD_UNIT_SETTING; | |
424 | break; | |
425 | ||
426 | case -EUCLEAN: | |
427 | m = strjoin("Invalid unit name ", change->path); | |
428 | bus_error = BUS_ERROR_BAD_UNIT_SETTING; | |
429 | break; | |
430 | ||
431 | case -ELOOP: | |
432 | m = strjoin("Refusing to operate on linked unit file ", change->path); | |
433 | bus_error = BUS_ERROR_UNIT_LINKED; | |
434 | break; | |
435 | ||
436 | case -EXDEV: | |
437 | if (change->source) | |
438 | m = strjoin("Cannot alias ", change->source, " as ", change->path); | |
439 | else | |
440 | m = strjoin("Invalid unit reference ", change->path); | |
441 | bus_error = BUS_ERROR_BAD_UNIT_SETTING; | |
442 | break; | |
443 | ||
444 | case -ENOENT: | |
445 | m = strjoin("Unit ", change->path, " does not exist"); | |
446 | bus_error = BUS_ERROR_NO_SUCH_UNIT; | |
447 | break; | |
448 | ||
a4f0e0da ZJS |
449 | case -ENOLINK: |
450 | m = strjoin("Unit ", change->path, " is an unresolvable alias"); | |
451 | bus_error = BUS_ERROR_NO_SUCH_UNIT; | |
452 | break; | |
453 | ||
d41f08bd MY |
454 | case -EUNATCH: |
455 | m = strjoin("Cannot resolve specifiers in unit ", change->path); | |
456 | bus_error = BUS_ERROR_BAD_UNIT_SETTING; | |
457 | break; | |
458 | ||
459 | default: | |
460 | return change->type; | |
461 | } | |
462 | if (!m) | |
463 | return -ENOMEM; | |
464 | ||
465 | *ret_errmsg = m; | |
466 | if (ret_bus_error) | |
467 | *ret_bus_error = bus_error; | |
468 | ||
469 | return 0; | |
470 | } | |
471 | ||
472 | void install_changes_dump( | |
473 | int error, | |
474 | const char *verb, | |
475 | const InstallChange *changes, | |
476 | size_t n_changes, | |
477 | bool quiet) { | |
478 | ||
479 | bool err_logged = false; | |
480 | int r; | |
481 | ||
482 | /* If verb is not specified, errors are not allowed! */ | |
483 | assert(verb || error >= 0); | |
484 | assert(changes || n_changes == 0); | |
485 | ||
486 | FOREACH_ARRAY(i, changes, n_changes) | |
487 | if (i->type >= 0) { | |
3aa96361 | 488 | if (!quiet) |
d41f08bd MY |
489 | install_change_dump_success(i); |
490 | } else { | |
491 | _cleanup_free_ char *err_message = NULL; | |
492 | ||
493 | assert(verb); | |
494 | ||
495 | r = install_change_dump_error(i, &err_message, /* ret_bus_error = */ NULL); | |
496 | if (r == -ENOMEM) | |
497 | return (void) log_oom(); | |
498 | if (r < 0) | |
499 | log_error_errno(r, "Failed to %s unit %s: %m", verb, i->path); | |
cbfdbffb | 500 | else |
d41f08bd MY |
501 | log_error_errno(i->type, "Failed to %s unit: %s", verb, err_message); |
502 | ||
503 | err_logged = true; | |
af3d8113 | 504 | } |
af3d8113 | 505 | |
d41f08bd MY |
506 | if (error < 0 && !err_logged) |
507 | log_error_errno(error, "Failed to %s unit: %m.", verb); | |
af3d8113 ZJS |
508 | } |
509 | ||
25ea9277 | 510 | /** |
3fc53351 ZJS |
511 | * Checks if two symlink targets (starting from src) are equivalent as far as the unit enablement logic is |
512 | * concerned. If the target is in the unit search path, then anything with the same name is equivalent. | |
513 | * If outside the unit search path, paths must be identical. | |
25ea9277 | 514 | */ |
3fc53351 ZJS |
515 | static int chroot_unit_symlinks_equivalent( |
516 | const LookupPaths *lp, | |
517 | const char *src, | |
518 | const char *target_a, | |
519 | const char *target_b) { | |
520 | ||
521 | assert(lp); | |
522 | assert(src); | |
523 | assert(target_a); | |
524 | assert(target_b); | |
25ea9277 ZJS |
525 | |
526 | /* This will give incorrect results if the paths are relative and go outside | |
527 | * of the chroot. False negatives are possible. */ | |
528 | ||
3fc53351 ZJS |
529 | const char *root = lp->root_dir ?: "/"; |
530 | _cleanup_free_ char *dirname = NULL; | |
531 | int r; | |
532 | ||
533 | if (!path_is_absolute(target_a) || !path_is_absolute(target_b)) { | |
534 | r = path_extract_directory(src, &dirname); | |
535 | if (r < 0) | |
536 | return r; | |
537 | } | |
538 | ||
539 | _cleanup_free_ char *a = path_join(path_is_absolute(target_a) ? root : dirname, target_a); | |
540 | _cleanup_free_ char *b = path_join(path_is_absolute(target_b) ? root : dirname, target_b); | |
541 | if (!a || !b) | |
542 | return log_oom(); | |
ae9efab7 | 543 | |
563e6846 | 544 | r = path_equal_or_inode_same(a, b, 0); |
3fc53351 ZJS |
545 | if (r != 0) |
546 | return r; | |
547 | ||
548 | _cleanup_free_ char *a_name = NULL, *b_name = NULL; | |
549 | r = path_extract_filename(a, &a_name); | |
550 | if (r < 0) | |
551 | return r; | |
552 | r = path_extract_filename(b, &b_name); | |
553 | if (r < 0) | |
554 | return r; | |
555 | ||
556 | return streq(a_name, b_name) && | |
557 | path_startswith_strv(a, lp->search_path) && | |
558 | path_startswith_strv(b, lp->search_path); | |
25ea9277 ZJS |
559 | } |
560 | ||
0ec0deaa | 561 | static int create_symlink( |
c3e7fba0 | 562 | const LookupPaths *lp, |
0ec0deaa LP |
563 | const char *old_path, |
564 | const char *new_path, | |
565 | bool force, | |
cd44ec5a | 566 | InstallChange **changes, |
da6053d0 | 567 | size_t *n_changes) { |
0ec0deaa | 568 | |
3fc53351 | 569 | _cleanup_free_ char *dest = NULL; |
60bec8e4 | 570 | const char *rp; |
0ec0deaa LP |
571 | int r; |
572 | ||
573 | assert(old_path); | |
574 | assert(new_path); | |
575 | ||
c3e7fba0 | 576 | rp = skip_root(lp->root_dir, old_path); |
60bec8e4 ZJS |
577 | if (rp) |
578 | old_path = rp; | |
579 | ||
4f5c2485 ZJS |
580 | /* Actually create a symlink, and remember that we did. This function is |
581 | * smart enough to check if there's already a valid symlink in place. | |
85158303 | 582 | * |
4f5c2485 ZJS |
583 | * Returns 1 if a symlink was created or already exists and points to the |
584 | * right place, or negative on error. | |
85158303 | 585 | */ |
0ec0deaa | 586 | |
35cd0ba5 | 587 | (void) mkdir_parents_label(new_path, 0755); |
0ec0deaa LP |
588 | |
589 | if (symlink(old_path, new_path) >= 0) { | |
f31f10a6 ZJS |
590 | r = install_changes_add(changes, n_changes, INSTALL_CHANGE_SYMLINK, new_path, old_path); |
591 | if (r < 0) | |
592 | return r; | |
3de15214 | 593 | return 1; |
0ec0deaa LP |
594 | } |
595 | ||
94e7298d ZJS |
596 | if (errno != EEXIST) |
597 | return install_changes_add(changes, n_changes, -errno, new_path, NULL); | |
0ec0deaa LP |
598 | |
599 | r = readlink_malloc(new_path, &dest); | |
7d782f26 ZJS |
600 | if (r < 0) { |
601 | /* translate EINVAL (non-symlink exists) to EEXIST */ | |
602 | if (r == -EINVAL) | |
603 | r = -EEXIST; | |
604 | ||
94e7298d | 605 | return install_changes_add(changes, n_changes, r, new_path, NULL); |
7d782f26 | 606 | } |
0ec0deaa | 607 | |
3fc53351 | 608 | if (chroot_unit_symlinks_equivalent(lp, new_path, dest, old_path)) { |
e2341b6b DT |
609 | log_debug("Symlink %s %s %s already exists", |
610 | new_path, special_glyph(SPECIAL_GLYPH_ARROW_RIGHT), dest); | |
85158303 | 611 | return 1; |
3e8d06d9 | 612 | } |
0ec0deaa | 613 | |
94e7298d ZJS |
614 | if (!force) |
615 | return install_changes_add(changes, n_changes, -EEXIST, new_path, dest); | |
0ec0deaa LP |
616 | |
617 | r = symlink_atomic(old_path, new_path); | |
94e7298d ZJS |
618 | if (r < 0) |
619 | return install_changes_add(changes, n_changes, r, new_path, NULL); | |
0ec0deaa | 620 | |
f31f10a6 ZJS |
621 | r = install_changes_add(changes, n_changes, INSTALL_CHANGE_UNLINK, new_path, NULL); |
622 | if (r < 0) | |
623 | return r; | |
624 | r = install_changes_add(changes, n_changes, INSTALL_CHANGE_SYMLINK, new_path, old_path); | |
625 | if (r < 0) | |
626 | return r; | |
0ec0deaa | 627 | |
3de15214 | 628 | return 1; |
0ec0deaa LP |
629 | } |
630 | ||
83096483 LP |
631 | static int mark_symlink_for_removal( |
632 | Set **remove_symlinks_to, | |
633 | const char *p) { | |
634 | ||
635 | char *n; | |
636 | int r; | |
637 | ||
638 | assert(p); | |
639 | ||
548f6937 | 640 | r = set_ensure_allocated(remove_symlinks_to, &path_hash_ops); |
83096483 LP |
641 | if (r < 0) |
642 | return r; | |
643 | ||
cf3d95b2 YW |
644 | r = path_simplify_alloc(p, &n); |
645 | if (r < 0) | |
646 | return r; | |
83096483 | 647 | |
ef42202a | 648 | r = set_consume(*remove_symlinks_to, n); |
d25e100b LP |
649 | if (r == -EEXIST) |
650 | return 0; | |
ef42202a | 651 | if (r < 0) |
d25e100b | 652 | return r; |
83096483 | 653 | |
0ec0deaa | 654 | return 1; |
83096483 LP |
655 | } |
656 | ||
657 | static int remove_marked_symlinks_fd( | |
658 | Set *remove_symlinks_to, | |
659 | int fd, | |
660 | const char *path, | |
661 | const char *config_path, | |
401017e0 | 662 | const LookupPaths *lp, |
3b3557c4 | 663 | bool dry_run, |
0ec0deaa | 664 | bool *restart, |
cd44ec5a | 665 | InstallChange **changes, |
da6053d0 | 666 | size_t *n_changes) { |
83096483 | 667 | |
7fd1b19b | 668 | _cleanup_closedir_ DIR *d = NULL; |
1d2e1cad | 669 | int r, ret = 0; |
83096483 LP |
670 | |
671 | assert(remove_symlinks_to); | |
672 | assert(fd >= 0); | |
673 | assert(path); | |
674 | assert(config_path); | |
401017e0 | 675 | assert(lp); |
0ec0deaa | 676 | assert(restart); |
83096483 LP |
677 | |
678 | d = fdopendir(fd); | |
679 | if (!d) { | |
03e334a1 | 680 | safe_close(fd); |
83096483 LP |
681 | return -errno; |
682 | } | |
683 | ||
684 | rewinddir(d); | |
685 | ||
06693181 | 686 | FOREACH_DIRENT(de, d, return -errno) |
83096483 | 687 | if (de->d_type == DT_DIR) { |
1d2e1cad | 688 | _cleanup_close_ int nfd = -EBADF; |
7fd1b19b | 689 | _cleanup_free_ char *p = NULL; |
83096483 | 690 | |
1d2e1cad | 691 | nfd = RET_NERRNO(openat(fd, de->d_name, O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW)); |
83096483 | 692 | if (nfd < 0) { |
1d2e1cad MY |
693 | if (nfd != -ENOENT) |
694 | RET_GATHER(ret, nfd); | |
83096483 LP |
695 | continue; |
696 | } | |
697 | ||
698 | p = path_make_absolute(de->d_name, path); | |
1d2e1cad | 699 | if (!p) |
d9e5e694 | 700 | return -ENOMEM; |
83096483 LP |
701 | |
702 | /* This will close nfd, regardless whether it succeeds or not */ | |
1d2e1cad MY |
703 | RET_GATHER(ret, remove_marked_symlinks_fd(remove_symlinks_to, |
704 | TAKE_FD(nfd), p, | |
705 | config_path, lp, | |
706 | dry_run, | |
707 | restart, | |
708 | changes, n_changes)); | |
83096483 LP |
709 | |
710 | } else if (de->d_type == DT_LNK) { | |
7a6c73da | 711 | _cleanup_free_ char *p = NULL; |
83096483 LP |
712 | bool found; |
713 | ||
7410616c | 714 | if (!unit_name_is_valid(de->d_name, UNIT_NAME_ANY)) |
bcafe923 LP |
715 | continue; |
716 | ||
83096483 | 717 | p = path_make_absolute(de->d_name, path); |
d9e5e694 ZJS |
718 | if (!p) |
719 | return -ENOMEM; | |
4ff361cc | 720 | path_simplify(p); |
83096483 | 721 | |
7a6c73da | 722 | /* We remove all links pointing to a file or path that is marked, as well as all |
9f61c9f7 ZJS |
723 | * files sharing the same name as a file that is marked, and files sharing the same |
724 | * name after the instance has been removed. Do path chasing only if we don't already | |
725 | * know that we want to remove the symlink. */ | |
7a6c73da | 726 | found = set_contains(remove_symlinks_to, de->d_name); |
212a24f0 | 727 | |
7a6c73da | 728 | if (!found) { |
9f61c9f7 ZJS |
729 | _cleanup_free_ char *template = NULL; |
730 | ||
1d2e1cad MY |
731 | r = unit_name_template(de->d_name, &template); |
732 | if (r < 0 && r != -EINVAL) | |
733 | return r; | |
734 | if (r >= 0) | |
9f61c9f7 ZJS |
735 | found = set_contains(remove_symlinks_to, template); |
736 | } | |
7a6c73da | 737 | |
9f61c9f7 | 738 | if (!found) { |
1d2e1cad | 739 | _cleanup_free_ char *dest = NULL, *dest_name = NULL; |
7a6c73da | 740 | |
1d2e1cad MY |
741 | r = chase(p, lp->root_dir, CHASE_NONEXISTENT, &dest, NULL); |
742 | if (r == -ENOENT) | |
7a6c73da | 743 | continue; |
1d2e1cad MY |
744 | if (r < 0) { |
745 | log_debug_errno(r, "Failed to resolve symlink \"%s\": %m", p); | |
746 | RET_GATHER(ret, install_changes_add(changes, n_changes, r, p, NULL)); | |
7a6c73da ZJS |
747 | continue; |
748 | } | |
749 | ||
1d2e1cad MY |
750 | r = path_extract_filename(dest, &dest_name); |
751 | if (r < 0) | |
752 | return r; | |
7a6c73da | 753 | |
1d2e1cad MY |
754 | found = set_contains(remove_symlinks_to, dest) || |
755 | set_contains(remove_symlinks_to, dest_name); | |
7a6c73da | 756 | } |
0ec0deaa | 757 | |
1dacfd2a LP |
758 | if (!found) |
759 | continue; | |
83096483 | 760 | |
3b3557c4 JS |
761 | if (!dry_run) { |
762 | if (unlinkat(fd, de->d_name, 0) < 0 && errno != ENOENT) { | |
1d2e1cad | 763 | RET_GATHER(ret, install_changes_add(changes, n_changes, -errno, p, NULL)); |
3b3557c4 JS |
764 | continue; |
765 | } | |
bcafe923 | 766 | |
3b3557c4 JS |
767 | (void) rmdir_parents(p, config_path); |
768 | } | |
83096483 | 769 | |
1d2e1cad MY |
770 | r = install_changes_add(changes, n_changes, INSTALL_CHANGE_UNLINK, p, NULL); |
771 | if (r < 0) | |
772 | return r; | |
1dacfd2a | 773 | |
12bf0ae4 ZJS |
774 | /* Now, remember the full path (but with the root prefix removed) of |
775 | * the symlink we just removed, and remove any symlinks to it, too. */ | |
401017e0 | 776 | |
7a6c73da | 777 | const char *rp = skip_root(lp->root_dir, p); |
1d2e1cad MY |
778 | r = mark_symlink_for_removal(&remove_symlinks_to, rp ?: p); |
779 | if (r < 0) | |
780 | return r; | |
781 | if (r > 0 && !dry_run) | |
0ec0deaa | 782 | *restart = true; |
83096483 | 783 | } |
83096483 | 784 | |
1d2e1cad | 785 | return ret; |
83096483 LP |
786 | } |
787 | ||
788 | static int remove_marked_symlinks( | |
789 | Set *remove_symlinks_to, | |
790 | const char *config_path, | |
401017e0 | 791 | const LookupPaths *lp, |
3b3557c4 | 792 | bool dry_run, |
cd44ec5a | 793 | InstallChange **changes, |
da6053d0 | 794 | size_t *n_changes) { |
83096483 | 795 | |
254d1313 | 796 | _cleanup_close_ int fd = -EBADF; |
0ec0deaa | 797 | bool restart; |
d25e100b | 798 | int r = 0; |
83096483 LP |
799 | |
800 | assert(config_path); | |
401017e0 | 801 | assert(lp); |
83096483 | 802 | |
43127aeb | 803 | if (set_isempty(remove_symlinks_to)) |
83096483 LP |
804 | return 0; |
805 | ||
67852d08 | 806 | fd = open(config_path, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC); |
83096483 | 807 | if (fd < 0) |
32d9493e | 808 | return errno == ENOENT ? 0 : -errno; |
83096483 LP |
809 | |
810 | do { | |
1d2e1cad | 811 | int cfd; |
0ec0deaa | 812 | restart = false; |
83096483 | 813 | |
ead34950 | 814 | cfd = fcntl(fd, F_DUPFD_CLOEXEC, 3); |
d25e100b LP |
815 | if (cfd < 0) |
816 | return -errno; | |
83096483 LP |
817 | |
818 | /* This takes possession of cfd and closes it */ | |
1d2e1cad MY |
819 | RET_GATHER(r, remove_marked_symlinks_fd(remove_symlinks_to, |
820 | cfd, config_path, | |
821 | config_path, lp, | |
822 | dry_run, | |
823 | &restart, | |
824 | changes, n_changes)); | |
0ec0deaa | 825 | } while (restart); |
83096483 | 826 | |
83096483 LP |
827 | return r; |
828 | } | |
829 | ||
0047d54d | 830 | static int is_symlink_with_known_name(const InstallInfo *i, const char *name) { |
5cd8ae31 ZJS |
831 | int r; |
832 | ||
df152dbb MY |
833 | assert(i); |
834 | assert(name); | |
835 | ||
5cd8ae31 ZJS |
836 | if (streq(name, i->name)) |
837 | return true; | |
838 | ||
839 | if (strv_contains(i->aliases, name)) | |
840 | return true; | |
841 | ||
842 | /* Look for template symlink matching DefaultInstance */ | |
843 | if (i->default_instance && unit_name_is_valid(i->name, UNIT_NAME_TEMPLATE)) { | |
844 | _cleanup_free_ char *s = NULL; | |
845 | ||
846 | r = unit_name_replace_instance(i->name, i->default_instance, &s); | |
847 | if (r < 0) { | |
848 | if (r != -EINVAL) | |
849 | return r; | |
850 | ||
851 | } else if (streq(name, s)) | |
852 | return true; | |
853 | } | |
854 | ||
855 | return false; | |
856 | } | |
857 | ||
43b4e305 MS |
858 | static int find_symlinks_in_directory( |
859 | DIR *dir, | |
860 | const char *dir_path, | |
0ec0deaa | 861 | const char *root_dir, |
0047d54d | 862 | const InstallInfo *info, |
466f6979 ZJS |
863 | bool ignore_destination, |
864 | bool match_name, | |
4b37c89f | 865 | bool ignore_same_name, |
83096483 LP |
866 | const char *config_path, |
867 | bool *same_name_link) { | |
868 | ||
df152dbb MY |
869 | int r, ret = 0; |
870 | ||
871 | assert(dir); | |
872 | assert(dir_path); | |
873 | assert(info); | |
874 | assert(unit_name_is_valid(info->name, UNIT_NAME_ANY)); | |
875 | assert(config_path); | |
876 | assert(same_name_link); | |
83096483 | 877 | |
43b4e305 | 878 | FOREACH_DIRENT(de, dir, return -errno) { |
466f6979 | 879 | bool found_path = false, found_dest = false, b = false; |
83096483 | 880 | |
43b4e305 MS |
881 | if (de->d_type != DT_LNK) |
882 | continue; | |
83096483 | 883 | |
466f6979 ZJS |
884 | if (!ignore_destination) { |
885 | _cleanup_free_ char *dest = NULL; | |
886 | ||
887 | /* Acquire symlink destination */ | |
df152dbb MY |
888 | r = readlinkat_malloc(dirfd(dir), de->d_name, &dest); |
889 | if (r < 0) { | |
890 | if (r != -ENOENT) | |
891 | RET_GATHER(ret, r); | |
466f6979 ZJS |
892 | continue; |
893 | } | |
83096483 | 894 | |
466f6979 | 895 | /* Check if what the symlink points to matches what we are looking for */ |
df152dbb | 896 | found_dest = path_equal_filename(dest, info->name); |
43b4e305 | 897 | } |
83096483 | 898 | |
466f6979 ZJS |
899 | /* Check if the symlink itself matches what we are looking for. |
900 | * | |
901 | * If ignore_destination is specified, we only look at the source name. | |
902 | * | |
903 | * If ignore_same_name is specified, we are in one of the directories which | |
904 | * have lower priority than the unit file, and even if a file or symlink with | |
905 | * this name was found, we should ignore it. */ | |
906 | ||
907 | if (ignore_destination || !ignore_same_name) | |
908 | found_path = streq(de->d_name, info->name); | |
909 | ||
910 | if (!found_path && ignore_destination) { | |
911 | _cleanup_free_ char *template = NULL; | |
912 | ||
df152dbb MY |
913 | r = unit_name_template(de->d_name, &template); |
914 | if (r < 0 && r != -EINVAL) | |
915 | return r; | |
916 | if (r >= 0) | |
466f6979 ZJS |
917 | found_dest = streq(template, info->name); |
918 | } | |
0ec0deaa | 919 | |
43b4e305 MS |
920 | if (found_path && found_dest) { |
921 | _cleanup_free_ char *p = NULL, *t = NULL; | |
0ec0deaa | 922 | |
466f6979 | 923 | /* Filter out same name links in the main config path */ |
43b4e305 | 924 | p = path_make_absolute(de->d_name, dir_path); |
4a84db4c | 925 | t = path_make_absolute(info->name, config_path); |
43b4e305 MS |
926 | if (!p || !t) |
927 | return -ENOMEM; | |
83096483 | 928 | |
43b4e305 MS |
929 | b = path_equal(p, t); |
930 | } | |
83096483 | 931 | |
43b4e305 MS |
932 | if (b) |
933 | *same_name_link = true; | |
934 | else if (found_path || found_dest) { | |
466f6979 | 935 | if (!match_name) |
43b4e305 | 936 | return 1; |
83096483 | 937 | |
43b4e305 | 938 | /* Check if symlink name is in the set of names used by [Install] */ |
df152dbb MY |
939 | r = is_symlink_with_known_name(info, de->d_name); |
940 | if (r != 0) | |
941 | return r; | |
83096483 LP |
942 | } |
943 | } | |
d25e100b | 944 | |
df152dbb | 945 | return ret; |
83096483 LP |
946 | } |
947 | ||
948 | static int find_symlinks( | |
0ec0deaa | 949 | const char *root_dir, |
0047d54d | 950 | const InstallInfo *i, |
d9b4b48f | 951 | bool match_name, |
4b37c89f | 952 | bool ignore_same_name, |
83096483 LP |
953 | const char *config_path, |
954 | bool *same_name_link) { | |
955 | ||
43b4e305 | 956 | _cleanup_closedir_ DIR *config_dir = NULL; |
df152dbb | 957 | int r; |
83096483 | 958 | |
5cd8ae31 | 959 | assert(i); |
83096483 LP |
960 | assert(config_path); |
961 | assert(same_name_link); | |
962 | ||
43b4e305 MS |
963 | config_dir = opendir(config_path); |
964 | if (!config_dir) { | |
a1feacf7 | 965 | if (IN_SET(errno, ENOENT, ENOTDIR, EACCES)) |
d5891fda | 966 | return 0; |
83096483 | 967 | return -errno; |
d5891fda | 968 | } |
83096483 | 969 | |
43b4e305 MS |
970 | FOREACH_DIRENT(de, config_dir, return -errno) { |
971 | const char *suffix; | |
972 | _cleanup_free_ const char *path = NULL; | |
973 | _cleanup_closedir_ DIR *d = NULL; | |
974 | ||
43b4e305 MS |
975 | if (de->d_type != DT_DIR) |
976 | continue; | |
977 | ||
978 | suffix = strrchr(de->d_name, '.'); | |
38f90179 | 979 | if (!STRPTR_IN_SET(suffix, ".wants", ".requires", ".upholds")) |
43b4e305 MS |
980 | continue; |
981 | ||
982 | path = path_join(config_path, de->d_name); | |
983 | if (!path) | |
984 | return -ENOMEM; | |
985 | ||
986 | d = opendir(path); | |
987 | if (!d) { | |
e75a26d0 | 988 | log_error_errno(errno, "Failed to open directory \"%s\" while scanning for symlinks, ignoring: %m", path); |
43b4e305 MS |
989 | continue; |
990 | } | |
991 | ||
466f6979 ZJS |
992 | r = find_symlinks_in_directory(d, path, root_dir, i, |
993 | /* ignore_destination= */ true, | |
994 | /* match_name= */ match_name, | |
995 | /* ignore_same_name= */ ignore_same_name, | |
996 | config_path, | |
997 | same_name_link); | |
43b4e305 MS |
998 | if (r > 0) |
999 | return 1; | |
df152dbb | 1000 | if (r < 0) |
e75a26d0 | 1001 | log_debug_errno(r, "Failed to look up symlinks in \"%s\": %m", path); |
43b4e305 MS |
1002 | } |
1003 | ||
38f90179 MY |
1004 | /* We didn't find any suitable symlinks in .wants, .requires or .upholds directories, |
1005 | * let's look for linked unit files in this directory. */ | |
43b4e305 | 1006 | rewinddir(config_dir); |
466f6979 ZJS |
1007 | return find_symlinks_in_directory(config_dir, config_path, root_dir, i, |
1008 | /* ignore_destination= */ false, | |
1009 | /* match_name= */ match_name, | |
1010 | /* ignore_same_name= */ ignore_same_name, | |
1011 | config_path, | |
1012 | same_name_link); | |
83096483 LP |
1013 | } |
1014 | ||
1015 | static int find_symlinks_in_scope( | |
4870133b | 1016 | RuntimeScope scope, |
c3e7fba0 | 1017 | const LookupPaths *lp, |
0047d54d | 1018 | const InstallInfo *info, |
d9b4b48f | 1019 | bool match_name, |
83096483 LP |
1020 | UnitFileState *state) { |
1021 | ||
dfead90d LP |
1022 | bool same_name_link_runtime = false, same_name_link_config = false; |
1023 | bool enabled_in_runtime = false, enabled_at_all = false; | |
4b37c89f | 1024 | bool ignore_same_name = false; |
0ec0deaa | 1025 | int r; |
83096483 | 1026 | |
c3e7fba0 | 1027 | assert(lp); |
4a84db4c | 1028 | assert(info); |
83096483 | 1029 | |
c3e7fba0 | 1030 | /* As we iterate over the list of search paths in lp->search_path, we may encounter "same name" |
4b37c89f | 1031 | * symlinks. The ones which are "below" (i.e. have lower priority) than the unit file itself are |
5238e957 | 1032 | * effectively masked, so we should ignore them. */ |
4b37c89f | 1033 | |
c3e7fba0 | 1034 | STRV_FOREACH(p, lp->search_path) { |
dfead90d LP |
1035 | bool same_name_link = false; |
1036 | ||
4a84db4c | 1037 | r = find_symlinks(lp->root_dir, info, match_name, ignore_same_name, *p, &same_name_link); |
dfead90d LP |
1038 | if (r < 0) |
1039 | return r; | |
1040 | if (r > 0) { | |
1041 | /* We found symlinks in this dir? Yay! Let's see where precisely it is enabled. */ | |
1042 | ||
1934242b | 1043 | if (path_equal(*p, lp->persistent_config)) { |
dfead90d LP |
1044 | /* This is the best outcome, let's return it immediately. */ |
1045 | *state = UNIT_FILE_ENABLED; | |
1046 | return 1; | |
1047 | } | |
1048 | ||
bb2682bc | 1049 | /* look for global enablement of user units */ |
4870133b | 1050 | if (scope == RUNTIME_SCOPE_USER && path_is_user_config_dir(*p)) { |
d2561cfd ZJS |
1051 | *state = UNIT_FILE_ENABLED; |
1052 | return 1; | |
1053 | } | |
1054 | ||
c3e7fba0 | 1055 | r = path_is_runtime(lp, *p, false); |
dfead90d LP |
1056 | if (r < 0) |
1057 | return r; | |
1058 | if (r > 0) | |
1059 | enabled_in_runtime = true; | |
1060 | else | |
1061 | enabled_at_all = true; | |
1062 | ||
1063 | } else if (same_name_link) { | |
1934242b | 1064 | if (path_equal(*p, lp->persistent_config)) |
dfead90d LP |
1065 | same_name_link_config = true; |
1066 | else { | |
c3e7fba0 | 1067 | r = path_is_runtime(lp, *p, false); |
dfead90d LP |
1068 | if (r < 0) |
1069 | return r; | |
1070 | if (r > 0) | |
1071 | same_name_link_runtime = true; | |
1072 | } | |
1073 | } | |
4b37c89f ZJS |
1074 | |
1075 | /* Check if next iteration will be "below" the unit file (either a regular file | |
1076 | * or a symlink), and hence should be ignored */ | |
4a84db4c | 1077 | if (!ignore_same_name && path_startswith(info->path, *p)) |
4b37c89f | 1078 | ignore_same_name = true; |
83096483 LP |
1079 | } |
1080 | ||
dfead90d | 1081 | if (enabled_in_runtime) { |
0ec0deaa | 1082 | *state = UNIT_FILE_ENABLED_RUNTIME; |
dfead90d LP |
1083 | return 1; |
1084 | } | |
1085 | ||
1086 | /* Here's a special rule: if the unit we are looking for is an instance, and it symlinked in the search path | |
1087 | * outside of runtime and configuration directory, then we consider it statically enabled. Note we do that only | |
1088 | * for instance, not for regular names, as those are merely aliases, while instances explicitly instantiate | |
1089 | * something, and hence are a much stronger concept. */ | |
4a84db4c | 1090 | if (enabled_at_all && unit_name_is_valid(info->name, UNIT_NAME_INSTANCE)) { |
dfead90d LP |
1091 | *state = UNIT_FILE_STATIC; |
1092 | return 1; | |
83096483 LP |
1093 | } |
1094 | ||
1095 | /* Hmm, we didn't find it, but maybe we found the same name | |
1096 | * link? */ | |
dfead90d | 1097 | if (same_name_link_config) { |
0ec0deaa LP |
1098 | *state = UNIT_FILE_LINKED; |
1099 | return 1; | |
1100 | } | |
83096483 LP |
1101 | if (same_name_link_runtime) { |
1102 | *state = UNIT_FILE_LINKED_RUNTIME; | |
1103 | return 1; | |
83096483 LP |
1104 | } |
1105 | ||
1106 | return 0; | |
1107 | } | |
1108 | ||
acb5b834 | 1109 | static void install_info_clear(InstallInfo *i) { |
0ec0deaa LP |
1110 | if (!i) |
1111 | return; | |
83096483 | 1112 | |
acb5b834 ZJS |
1113 | i->name = mfree(i->name); |
1114 | i->path = mfree(i->path); | |
1115 | i->root = mfree(i->root); | |
1116 | i->aliases = strv_free(i->aliases); | |
1117 | i->wanted_by = strv_free(i->wanted_by); | |
1118 | i->required_by = strv_free(i->required_by); | |
38f90179 | 1119 | i->upheld_by = strv_free(i->upheld_by); |
acb5b834 ZJS |
1120 | i->also = strv_free(i->also); |
1121 | i->default_instance = mfree(i->default_instance); | |
1122 | i->symlink_target = mfree(i->symlink_target); | |
0ec0deaa | 1123 | } |
83096483 | 1124 | |
acb5b834 ZJS |
1125 | static InstallInfo* install_info_free(InstallInfo *i) { |
1126 | install_info_clear(i); | |
1127 | return mfree(i); | |
1128 | } | |
1129 | ||
1130 | DEFINE_TRIVIAL_CLEANUP_FUNC(InstallInfo*, install_info_free); | |
1131 | ||
4a84db4c ZJS |
1132 | static void install_context_done(InstallContext *ctx) { |
1133 | assert(ctx); | |
83096483 | 1134 | |
4a84db4c ZJS |
1135 | ctx->will_process = ordered_hashmap_free_with_destructor(ctx->will_process, install_info_free); |
1136 | ctx->have_processed = ordered_hashmap_free_with_destructor(ctx->have_processed, install_info_free); | |
0ec0deaa | 1137 | } |
83096483 | 1138 | |
0047d54d ZJS |
1139 | static InstallInfo *install_info_find(InstallContext *ctx, const char *name) { |
1140 | InstallInfo *i; | |
83096483 | 1141 | |
4a84db4c | 1142 | i = ordered_hashmap_get(ctx->have_processed, name); |
0ec0deaa LP |
1143 | if (i) |
1144 | return i; | |
83096483 | 1145 | |
4a84db4c | 1146 | return ordered_hashmap_get(ctx->will_process, name); |
83096483 LP |
1147 | } |
1148 | ||
af3d8113 | 1149 | static int install_info_may_process( |
0047d54d | 1150 | const InstallInfo *i, |
c3e7fba0 | 1151 | const LookupPaths *lp, |
cd44ec5a | 1152 | InstallChange **changes, |
da6053d0 | 1153 | size_t *n_changes) { |
76adb5b8 | 1154 | assert(i); |
c3e7fba0 | 1155 | assert(lp); |
76adb5b8 | 1156 | |
047d91f9 ZJS |
1157 | /* Checks whether the loaded unit file is one we should process, or is masked, |
1158 | * transient or generated and thus not subject to enable/disable operations. */ | |
76adb5b8 | 1159 | |
94e7298d ZJS |
1160 | if (i->install_mode == INSTALL_MODE_MASKED) |
1161 | return install_changes_add(changes, n_changes, -ERFKILL, i->path, NULL); | |
c3e7fba0 | 1162 | if (path_is_generator(lp, i->path) || |
94e7298d ZJS |
1163 | path_is_transient(lp, i->path)) |
1164 | return install_changes_add(changes, n_changes, -EADDRNOTAVAIL, i->path, NULL); | |
76adb5b8 LP |
1165 | |
1166 | return 0; | |
1167 | } | |
1168 | ||
ff56349d | 1169 | /** |
0047d54d | 1170 | * Adds a new InstallInfo entry under name in the InstallContext.will_process |
ff56349d | 1171 | * hashmap, or retrieves the existing one if already present. |
19539807 ZJS |
1172 | * |
1173 | * Returns negative on error, 0 if the unit was already known, 1 otherwise. | |
ff56349d | 1174 | */ |
83096483 | 1175 | static int install_info_add( |
4a84db4c | 1176 | InstallContext *ctx, |
83096483 | 1177 | const char *name, |
0ec0deaa | 1178 | const char *path, |
de61a04b | 1179 | const char *root, |
19539807 | 1180 | bool auxiliary, |
0047d54d | 1181 | InstallInfo **ret) { |
0ec0deaa | 1182 | |
1ac0056c | 1183 | _cleanup_free_ char *name_alloc = NULL; |
83096483 LP |
1184 | int r; |
1185 | ||
4a84db4c | 1186 | assert(ctx); |
83096483 | 1187 | |
08f46856 | 1188 | if (!name) { |
1ac0056c MY |
1189 | assert(path); |
1190 | ||
1191 | r = path_extract_filename(path, &name_alloc); | |
1192 | if (r < 0) | |
1193 | return r; | |
1194 | ||
1195 | name = name_alloc; | |
08f46856 | 1196 | } |
83096483 | 1197 | |
7410616c | 1198 | if (!unit_name_is_valid(name, UNIT_NAME_ANY)) |
83096483 LP |
1199 | return -EINVAL; |
1200 | ||
acb5b834 | 1201 | InstallInfo *i = install_info_find(ctx, name); |
0ec0deaa | 1202 | if (i) { |
19539807 ZJS |
1203 | i->auxiliary = i->auxiliary && auxiliary; |
1204 | ||
0ec0deaa LP |
1205 | if (ret) |
1206 | *ret = i; | |
83096483 | 1207 | return 0; |
0ec0deaa | 1208 | } |
83096483 | 1209 | |
1ac0056c MY |
1210 | _cleanup_(install_info_freep) InstallInfo *new_info = new(InstallInfo, 1); |
1211 | if (!new_info) | |
83096483 | 1212 | return -ENOMEM; |
d23aeead | 1213 | |
1ac0056c | 1214 | *new_info = (InstallInfo) { |
91810c8f | 1215 | .install_mode = _INSTALL_MODE_INVALID, |
d23aeead LP |
1216 | .auxiliary = auxiliary, |
1217 | }; | |
83096483 | 1218 | |
1ac0056c MY |
1219 | if (name_alloc) |
1220 | new_info->name = TAKE_PTR(name_alloc); | |
1221 | else { | |
1222 | new_info->name = strdup(name); | |
1223 | if (!new_info->name) | |
acb5b834 | 1224 | return -ENOMEM; |
de61a04b LP |
1225 | } |
1226 | ||
1ac0056c MY |
1227 | r = strdup_to(&new_info->root, root); |
1228 | if (r < 0) | |
1229 | return r; | |
1230 | ||
1231 | r = strdup_to(&new_info->path, path); | |
1232 | if (r < 0) | |
1233 | return r; | |
83096483 | 1234 | |
1ac0056c | 1235 | r = ordered_hashmap_ensure_put(&ctx->will_process, &string_hash_ops, new_info->name, new_info); |
83096483 | 1236 | if (r < 0) |
acb5b834 | 1237 | return r; |
1ac0056c | 1238 | i = TAKE_PTR(new_info); |
83096483 | 1239 | |
0ec0deaa LP |
1240 | if (ret) |
1241 | *ret = i; | |
19539807 | 1242 | return 1; |
83096483 LP |
1243 | } |
1244 | ||
a7724589 ZJS |
1245 | static int config_parse_alias( |
1246 | const char *unit, | |
1247 | const char *filename, | |
1248 | unsigned line, | |
1249 | const char *section, | |
1250 | unsigned section_line, | |
1251 | const char *lvalue, | |
1252 | int ltype, | |
1253 | const char *rvalue, | |
1254 | void *data, | |
1255 | void *userdata) { | |
1256 | ||
a7724589 ZJS |
1257 | UnitType type; |
1258 | ||
142468d8 | 1259 | assert(unit); |
a7724589 ZJS |
1260 | assert(filename); |
1261 | assert(lvalue); | |
1262 | assert(rvalue); | |
1263 | ||
142468d8 | 1264 | type = unit_name_to_type(unit); |
a7724589 ZJS |
1265 | if (!unit_type_may_alias(type)) |
1266 | return log_syntax(unit, LOG_WARNING, filename, line, 0, | |
3b8769bd | 1267 | "Alias= is not allowed for %s units, ignoring.", |
a7724589 ZJS |
1268 | unit_type_to_string(type)); |
1269 | ||
1270 | return config_parse_strv(unit, filename, line, section, section_line, | |
1271 | lvalue, ltype, rvalue, data, userdata); | |
1272 | } | |
1273 | ||
d54c4993 LP |
1274 | static int config_parse_also( |
1275 | const char *unit, | |
1276 | const char *filename, | |
1277 | unsigned line, | |
1278 | const char *section, | |
1279 | unsigned section_line, | |
1280 | const char *lvalue, | |
1281 | int ltype, | |
1282 | const char *rvalue, | |
1283 | void *data, | |
1284 | void *userdata) { | |
83096483 | 1285 | |
0047d54d | 1286 | InstallInfo *info = ASSERT_PTR(userdata); |
4a84db4c | 1287 | InstallContext *ctx = ASSERT_PTR(data); |
0ec0deaa | 1288 | int r; |
83096483 | 1289 | |
142468d8 | 1290 | assert(unit); |
83096483 LP |
1291 | assert(filename); |
1292 | assert(lvalue); | |
1293 | assert(rvalue); | |
1294 | ||
0ec0deaa | 1295 | for (;;) { |
a6612e65 | 1296 | _cleanup_free_ char *word = NULL, *printed = NULL; |
03da6513 | 1297 | |
0ec0deaa LP |
1298 | r = extract_first_word(&rvalue, &word, NULL, 0); |
1299 | if (r < 0) | |
1300 | return r; | |
03da6513 SS |
1301 | if (r == 0) |
1302 | break; | |
83096483 | 1303 | |
38e8a6c7 | 1304 | r = install_name_printf(ctx->scope, info, word, &printed); |
d9e5e694 | 1305 | if (r < 0) |
6ec4c852 ZJS |
1306 | return log_syntax(unit, LOG_WARNING, filename, line, r, |
1307 | "Failed to resolve unit name in Also=\"%s\": %m", word); | |
aedd4012 | 1308 | |
4a84db4c | 1309 | r = install_info_add(ctx, printed, NULL, info->root, /* auxiliary= */ true, NULL); |
d9e5e694 | 1310 | if (r < 0) |
83096483 | 1311 | return r; |
aedd4012 | 1312 | |
a6612e65 | 1313 | r = strv_push(&info->also, printed); |
aedd4012 JS |
1314 | if (r < 0) |
1315 | return r; | |
0ec0deaa | 1316 | |
a6612e65 | 1317 | printed = NULL; |
83096483 LP |
1318 | } |
1319 | ||
1320 | return 0; | |
1321 | } | |
1322 | ||
d54c4993 LP |
1323 | static int config_parse_default_instance( |
1324 | const char *unit, | |
1325 | const char *filename, | |
1326 | unsigned line, | |
1327 | const char *section, | |
1328 | unsigned section_line, | |
1329 | const char *lvalue, | |
1330 | int ltype, | |
1331 | const char *rvalue, | |
1332 | void *data, | |
1333 | void *userdata) { | |
1334 | ||
172e9cc3 | 1335 | InstallContext *ctx = ASSERT_PTR(data); |
0047d54d | 1336 | InstallInfo *info = ASSERT_PTR(userdata); |
d7604756 | 1337 | _cleanup_free_ char *printed = NULL; |
d54c4993 LP |
1338 | int r; |
1339 | ||
142468d8 | 1340 | assert(unit); |
d54c4993 LP |
1341 | assert(filename); |
1342 | assert(lvalue); | |
1343 | assert(rvalue); | |
1344 | ||
142468d8 | 1345 | if (unit_name_is_valid(unit, UNIT_NAME_INSTANCE)) |
6597fa61 ZJS |
1346 | /* When enabling an instance, we might be using a template unit file, |
1347 | * but we should ignore DefaultInstance silently. */ | |
1348 | return 0; | |
142468d8 | 1349 | if (!unit_name_is_valid(unit, UNIT_NAME_TEMPLATE)) |
6597fa61 | 1350 | return log_syntax(unit, LOG_WARNING, filename, line, 0, |
10d67460 | 1351 | "DefaultInstance= only makes sense for template units, ignoring."); |
6597fa61 | 1352 | |
38e8a6c7 | 1353 | r = install_name_printf(ctx->scope, info, rvalue, &printed); |
d54c4993 | 1354 | if (r < 0) |
6ec4c852 ZJS |
1355 | return log_syntax(unit, LOG_WARNING, filename, line, r, |
1356 | "Failed to resolve instance name in DefaultInstance=\"%s\": %m", rvalue); | |
d54c4993 | 1357 | |
6ec4c852 ZJS |
1358 | if (isempty(printed)) |
1359 | printed = mfree(printed); | |
b5395600 | 1360 | |
6ec4c852 | 1361 | if (printed && !unit_instance_is_valid(printed)) |
e5171296 ZJS |
1362 | return log_syntax(unit, LOG_WARNING, filename, line, SYNTHETIC_ERRNO(EINVAL), |
1363 | "Invalid DefaultInstance= value \"%s\".", printed); | |
d54c4993 | 1364 | |
4a84db4c | 1365 | return free_and_replace(info->default_instance, printed); |
d54c4993 LP |
1366 | } |
1367 | ||
83096483 | 1368 | static int unit_file_load( |
4a84db4c | 1369 | InstallContext *ctx, |
0047d54d | 1370 | InstallInfo *info, |
83096483 | 1371 | const char *path, |
d04a9386 | 1372 | const char *root_dir, |
0ec0deaa | 1373 | SearchFlags flags) { |
83096483 | 1374 | |
f975e971 | 1375 | const ConfigTableItem items[] = { |
a7724589 | 1376 | { "Install", "Alias", config_parse_alias, 0, &info->aliases }, |
d54c4993 LP |
1377 | { "Install", "WantedBy", config_parse_strv, 0, &info->wanted_by }, |
1378 | { "Install", "RequiredBy", config_parse_strv, 0, &info->required_by }, | |
38f90179 | 1379 | { "Install", "UpheldBy", config_parse_strv, 0, &info->upheld_by }, |
d54c4993 | 1380 | { "Install", "DefaultInstance", config_parse_default_instance, 0, info }, |
4a84db4c | 1381 | { "Install", "Also", config_parse_also, 0, ctx }, |
d54c4993 | 1382 | {} |
83096483 LP |
1383 | }; |
1384 | ||
133e5b36 | 1385 | UnitType type; |
7fd1b19b | 1386 | _cleanup_fclose_ FILE *f = NULL; |
254d1313 | 1387 | _cleanup_close_ int fd = -EBADF; |
0ec0deaa LP |
1388 | struct stat st; |
1389 | int r; | |
83096483 | 1390 | |
83096483 LP |
1391 | assert(info); |
1392 | assert(path); | |
1393 | ||
d04a9386 LP |
1394 | if (!(flags & SEARCH_DROPIN)) { |
1395 | /* Loading or checking for the main unit file… */ | |
133e5b36 | 1396 | |
d04a9386 LP |
1397 | type = unit_name_to_type(info->name); |
1398 | if (type < 0) | |
1399 | return -EINVAL; | |
baaa35ad ZJS |
1400 | if (unit_name_is_valid(info->name, UNIT_NAME_TEMPLATE|UNIT_NAME_INSTANCE) && !unit_type_may_template(type)) |
1401 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), | |
bce84e10 | 1402 | "%s: unit type %s cannot be templated, ignoring.", path, unit_type_to_string(type)); |
d04a9386 LP |
1403 | |
1404 | if (!(flags & SEARCH_LOAD)) { | |
4276749d | 1405 | if (lstat(path, &st) < 0) |
d04a9386 LP |
1406 | return -errno; |
1407 | ||
1408 | if (null_or_empty(&st)) | |
91810c8f | 1409 | info->install_mode = INSTALL_MODE_MASKED; |
d04a9386 | 1410 | else if (S_ISREG(st.st_mode)) |
91810c8f | 1411 | info->install_mode = INSTALL_MODE_REGULAR; |
d04a9386 LP |
1412 | else if (S_ISLNK(st.st_mode)) |
1413 | return -ELOOP; | |
1414 | else if (S_ISDIR(st.st_mode)) | |
1415 | return -EISDIR; | |
1416 | else | |
1417 | return -ENOTTY; | |
1418 | ||
1419 | return 0; | |
1420 | } | |
1421 | ||
1422 | fd = open(path, O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW); | |
1423 | if (fd < 0) | |
d25e100b | 1424 | return -errno; |
d04a9386 LP |
1425 | } else { |
1426 | /* 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 | 1427 | |
d04a9386 LP |
1428 | if (!(flags & SEARCH_LOAD)) |
1429 | return 0; | |
0ec0deaa | 1430 | |
f461a28d | 1431 | fd = chase_and_open(path, root_dir, 0, O_RDONLY|O_CLOEXEC|O_NOCTTY, NULL); |
d04a9386 LP |
1432 | if (fd < 0) |
1433 | return fd; | |
e94937df LN |
1434 | } |
1435 | ||
0ec0deaa LP |
1436 | if (fstat(fd, &st) < 0) |
1437 | return -errno; | |
d04a9386 | 1438 | |
0ec0deaa | 1439 | if (null_or_empty(&st)) { |
d04a9386 | 1440 | if ((flags & SEARCH_DROPIN) == 0) |
91810c8f | 1441 | info->install_mode = INSTALL_MODE_MASKED; |
d04a9386 | 1442 | |
0ec0deaa LP |
1443 | return 0; |
1444 | } | |
3cc44114 LP |
1445 | |
1446 | r = stat_verify_regular(&st); | |
1447 | if (r < 0) | |
1448 | return r; | |
83096483 | 1449 | |
4fa744a3 | 1450 | f = take_fdopen(&fd, "r"); |
0ec0deaa LP |
1451 | if (!f) |
1452 | return -errno; | |
83096483 | 1453 | |
4a84db4c ZJS |
1454 | /* ctx is only needed if we actually load the file (it's referenced from items[] btw, in case you wonder.) */ |
1455 | assert(ctx); | |
d04a9386 | 1456 | |
142468d8 | 1457 | r = config_parse(info->name, path, f, |
f4331d0d ZJS |
1458 | "Install\0" |
1459 | "-Unit\0" | |
1460 | "-Automount\0" | |
1461 | "-Device\0" | |
1462 | "-Mount\0" | |
1463 | "-Path\0" | |
1464 | "-Scope\0" | |
1465 | "-Service\0" | |
1466 | "-Slice\0" | |
1467 | "-Socket\0" | |
1468 | "-Swap\0" | |
1469 | "-Target\0" | |
1470 | "-Timer\0", | |
36f822c4 | 1471 | config_item_table_lookup, items, |
7ade8982 | 1472 | 0, info, |
4f9ff96a | 1473 | NULL); |
83096483 | 1474 | if (r < 0) |
e75a26d0 | 1475 | return log_debug_errno(r, "Failed to parse \"%s\": %m", info->name); |
83096483 | 1476 | |
d04a9386 | 1477 | if ((flags & SEARCH_DROPIN) == 0) |
91810c8f | 1478 | info->install_mode = INSTALL_MODE_REGULAR; |
aedd4012 | 1479 | |
78d54bd4 | 1480 | return |
693eb9a2 LP |
1481 | (int) strv_length(info->aliases) + |
1482 | (int) strv_length(info->wanted_by) + | |
38f90179 MY |
1483 | (int) strv_length(info->required_by) + |
1484 | (int) strv_length(info->upheld_by); | |
83096483 LP |
1485 | } |
1486 | ||
0ec0deaa | 1487 | static int unit_file_load_or_readlink( |
4a84db4c | 1488 | InstallContext *ctx, |
0047d54d | 1489 | InstallInfo *info, |
0ec0deaa | 1490 | const char *path, |
c3e7fba0 | 1491 | const LookupPaths *lp, |
0ec0deaa | 1492 | SearchFlags flags) { |
0ec0deaa LP |
1493 | int r; |
1494 | ||
4a84db4c | 1495 | r = unit_file_load(ctx, info, path, lp->root_dir, flags); |
d04a9386 | 1496 | if (r != -ELOOP || (flags & SEARCH_DROPIN)) |
0ec0deaa LP |
1497 | return r; |
1498 | ||
047d37dc ZJS |
1499 | /* This is a symlink, let's read and verify it. */ |
1500 | r = unit_file_resolve_symlink(lp->root_dir, lp->search_path, | |
1501 | NULL, AT_FDCWD, path, | |
1502 | true, &info->symlink_target); | |
1503 | if (r < 0) | |
1504 | return r; | |
48ed75ad | 1505 | bool outside_search_path = r > 0; |
4276749d | 1506 | |
047d37dc ZJS |
1507 | r = null_or_empty_path_with_root(info->symlink_target, lp->root_dir); |
1508 | if (r < 0 && r != -ENOENT) | |
1509 | return log_debug_errno(r, "Failed to stat %s: %m", info->symlink_target); | |
1510 | if (r > 0) | |
91810c8f | 1511 | info->install_mode = INSTALL_MODE_MASKED; |
48ed75ad | 1512 | else if (outside_search_path) |
91810c8f | 1513 | info->install_mode = INSTALL_MODE_LINKED; |
047d37dc | 1514 | else |
91810c8f | 1515 | info->install_mode = INSTALL_MODE_ALIAS; |
0ec0deaa LP |
1516 | |
1517 | return 0; | |
1518 | } | |
1519 | ||
83096483 | 1520 | static int unit_file_search( |
4a84db4c | 1521 | InstallContext *ctx, |
0047d54d | 1522 | InstallInfo *info, |
c3e7fba0 | 1523 | const LookupPaths *lp, |
0ec0deaa | 1524 | SearchFlags flags) { |
83096483 | 1525 | |
d04a9386 LP |
1526 | const char *dropin_dir_name = NULL, *dropin_template_dir_name = NULL; |
1527 | _cleanup_strv_free_ char **dirs = NULL, **files = NULL; | |
64f9280e | 1528 | _cleanup_free_ char *template = NULL; |
142468d8 | 1529 | bool found_unit = false; |
d04a9386 | 1530 | int r, result; |
83096483 | 1531 | |
83096483 | 1532 | assert(info); |
c3e7fba0 | 1533 | assert(lp); |
83096483 | 1534 | |
0ec0deaa | 1535 | /* Was this unit already loaded? */ |
91810c8f | 1536 | if (info->install_mode != _INSTALL_MODE_INVALID) |
0ec0deaa LP |
1537 | return 0; |
1538 | ||
278fa575 | 1539 | if (info->path) |
4a84db4c | 1540 | return unit_file_load_or_readlink(ctx, info, info->path, lp, flags); |
83096483 LP |
1541 | |
1542 | assert(info->name); | |
1543 | ||
142468d8 JL |
1544 | if (unit_name_is_valid(info->name, UNIT_NAME_INSTANCE)) { |
1545 | r = unit_name_template(info->name, &template); | |
1546 | if (r < 0) | |
1547 | return r; | |
1548 | } | |
1549 | ||
c3e7fba0 | 1550 | STRV_FOREACH(p, lp->search_path) { |
e50bd775 | 1551 | _cleanup_free_ char *path = NULL; |
83096483 | 1552 | |
657ee2d8 | 1553 | path = path_join(*p, info->name); |
83096483 LP |
1554 | if (!path) |
1555 | return -ENOMEM; | |
1556 | ||
4a84db4c | 1557 | r = unit_file_load_or_readlink(ctx, info, path, lp, flags); |
0155928c | 1558 | if (r >= 0) { |
ae2a15bc | 1559 | info->path = TAKE_PTR(path); |
142468d8 JL |
1560 | result = r; |
1561 | found_unit = true; | |
1562 | break; | |
a1feacf7 | 1563 | } else if (!IN_SET(r, -ENOENT, -ENOTDIR, -EACCES)) |
0155928c | 1564 | return r; |
e50bd775 | 1565 | } |
62b00233 | 1566 | |
142468d8 JL |
1567 | if (!found_unit && template) { |
1568 | ||
e50bd775 LP |
1569 | /* Unit file doesn't exist, however instance |
1570 | * enablement was requested. We will check if it is | |
1571 | * possible to load template unit file. */ | |
29283ea4 | 1572 | |
c3e7fba0 | 1573 | STRV_FOREACH(p, lp->search_path) { |
e50bd775 LP |
1574 | _cleanup_free_ char *path = NULL; |
1575 | ||
657ee2d8 | 1576 | path = path_join(*p, template); |
62b00233 ZJS |
1577 | if (!path) |
1578 | return -ENOMEM; | |
29283ea4 | 1579 | |
4a84db4c | 1580 | r = unit_file_load_or_readlink(ctx, info, path, lp, flags); |
0155928c | 1581 | if (r >= 0) { |
ae2a15bc | 1582 | info->path = TAKE_PTR(path); |
142468d8 JL |
1583 | result = r; |
1584 | found_unit = true; | |
1585 | break; | |
a1feacf7 | 1586 | } else if (!IN_SET(r, -ENOENT, -ENOTDIR, -EACCES)) |
0155928c | 1587 | return r; |
29283ea4 | 1588 | } |
83096483 LP |
1589 | } |
1590 | ||
baaa35ad ZJS |
1591 | if (!found_unit) |
1592 | return log_debug_errno(SYNTHETIC_ERRNO(ENOENT), | |
1593 | "Cannot find unit %s%s%s.", | |
1594 | info->name, template ? " or " : "", strempty(template)); | |
142468d8 | 1595 | |
91810c8f | 1596 | if (info->install_mode == INSTALL_MODE_MASKED) |
9639b175 FB |
1597 | return result; |
1598 | ||
142468d8 JL |
1599 | /* Search for drop-in directories */ |
1600 | ||
1601 | dropin_dir_name = strjoina(info->name, ".d"); | |
c3e7fba0 | 1602 | STRV_FOREACH(p, lp->search_path) { |
142468d8 JL |
1603 | char *path; |
1604 | ||
62a85ee0 | 1605 | path = path_join(*p, dropin_dir_name); |
142468d8 JL |
1606 | if (!path) |
1607 | return -ENOMEM; | |
1608 | ||
1609 | r = strv_consume(&dirs, path); | |
1610 | if (r < 0) | |
1611 | return r; | |
1612 | } | |
1613 | ||
1614 | if (template) { | |
1615 | dropin_template_dir_name = strjoina(template, ".d"); | |
c3e7fba0 | 1616 | STRV_FOREACH(p, lp->search_path) { |
142468d8 JL |
1617 | char *path; |
1618 | ||
62a85ee0 | 1619 | path = path_join(*p, dropin_template_dir_name); |
142468d8 JL |
1620 | if (!path) |
1621 | return -ENOMEM; | |
1622 | ||
1623 | r = strv_consume(&dirs, path); | |
1624 | if (r < 0) | |
1625 | return r; | |
1626 | } | |
1627 | } | |
1628 | ||
1629 | /* Load drop-in conf files */ | |
1630 | ||
1631 | r = conf_files_list_strv(&files, ".conf", NULL, 0, (const char**) dirs); | |
1632 | if (r < 0) | |
1633 | return log_debug_errno(r, "Failed to get list of conf files: %m"); | |
1634 | ||
1635 | STRV_FOREACH(p, files) { | |
4a84db4c | 1636 | r = unit_file_load_or_readlink(ctx, info, *p, lp, flags | SEARCH_DROPIN); |
142468d8 | 1637 | if (r < 0) |
e75a26d0 | 1638 | return log_debug_errno(r, "Failed to load conf file \"%s\": %m", *p); |
142468d8 JL |
1639 | } |
1640 | ||
1641 | return result; | |
83096483 LP |
1642 | } |
1643 | ||
0ec0deaa | 1644 | static int install_info_follow( |
4a84db4c | 1645 | InstallContext *ctx, |
0047d54d | 1646 | InstallInfo *info, |
c3e7fba0 | 1647 | const LookupPaths *lp, |
9f6cbcf5 LP |
1648 | SearchFlags flags, |
1649 | bool ignore_different_name) { | |
0ec0deaa | 1650 | |
4a84db4c ZJS |
1651 | assert(ctx); |
1652 | assert(info); | |
0ec0deaa | 1653 | |
91810c8f | 1654 | if (!IN_SET(info->install_mode, INSTALL_MODE_ALIAS, INSTALL_MODE_LINKED)) |
0ec0deaa | 1655 | return -EINVAL; |
4a84db4c | 1656 | if (!info->symlink_target) |
0ec0deaa LP |
1657 | return -EINVAL; |
1658 | ||
4f5c2485 | 1659 | /* If the basename doesn't match, the caller should add a complete new entry for this. */ |
0ec0deaa | 1660 | |
3e02c8d8 | 1661 | if (!ignore_different_name && !path_equal_filename(info->symlink_target, info->name)) |
0ec0deaa LP |
1662 | return -EXDEV; |
1663 | ||
4a84db4c | 1664 | free_and_replace(info->path, info->symlink_target); |
91810c8f | 1665 | info->install_mode = _INSTALL_MODE_INVALID; |
0ec0deaa | 1666 | |
4a84db4c | 1667 | return unit_file_load_or_readlink(ctx, info, info->path, lp, flags); |
0ec0deaa LP |
1668 | } |
1669 | ||
64f9280e | 1670 | /** |
ff56349d ZJS |
1671 | * Search for the unit file. If the unit name is a symlink, follow the symlink to the |
1672 | * target, maybe more than once. Propagate the instance name if present. | |
64f9280e | 1673 | */ |
0ec0deaa | 1674 | static int install_info_traverse( |
4a84db4c | 1675 | InstallContext *ctx, |
c3e7fba0 | 1676 | const LookupPaths *lp, |
0047d54d | 1677 | InstallInfo *start, |
0ec0deaa | 1678 | SearchFlags flags, |
0047d54d | 1679 | InstallInfo **ret) { |
83096483 | 1680 | |
0047d54d | 1681 | InstallInfo *i; |
0ec0deaa | 1682 | unsigned k = 0; |
83096483 LP |
1683 | int r; |
1684 | ||
d51c4045 | 1685 | assert(ctx); |
c3e7fba0 | 1686 | assert(lp); |
0ec0deaa | 1687 | assert(start); |
83096483 | 1688 | |
4a84db4c | 1689 | r = unit_file_search(ctx, start, lp, flags); |
83096483 LP |
1690 | if (r < 0) |
1691 | return r; | |
1692 | ||
0ec0deaa | 1693 | i = start; |
91810c8f | 1694 | while (IN_SET(i->install_mode, INSTALL_MODE_ALIAS, INSTALL_MODE_LINKED)) { |
0ec0deaa | 1695 | /* Follow the symlink */ |
83096483 | 1696 | |
0ec0deaa LP |
1697 | if (++k > UNIT_FILE_FOLLOW_SYMLINK_MAX) |
1698 | return -ELOOP; | |
83096483 | 1699 | |
d51c4045 | 1700 | if (!FLAGS_SET(flags, SEARCH_FOLLOW_CONFIG_SYMLINKS)) { |
c3e7fba0 | 1701 | r = path_is_config(lp, i->path, true); |
e1c5c2b0 LP |
1702 | if (r < 0) |
1703 | return r; | |
1704 | if (r > 0) | |
1705 | return -ELOOP; | |
1706 | } | |
83096483 | 1707 | |
48eadb9d ZJS |
1708 | r = install_info_follow(ctx, i, lp, flags, |
1709 | /* If linked, don't look at the target name */ | |
91810c8f | 1710 | /* ignore_different_name= */ i->install_mode == INSTALL_MODE_LINKED); |
19cfda9f | 1711 | if (r == -EXDEV && i->symlink_target) { |
d51c4045 | 1712 | _cleanup_free_ char *target_name = NULL, *unit_instance = NULL; |
0ec0deaa | 1713 | const char *bn; |
83096483 | 1714 | |
4f5c2485 | 1715 | /* Target is an alias, create a new install info object and continue with that. */ |
83096483 | 1716 | |
d51c4045 MY |
1717 | r = path_extract_filename(i->symlink_target, &target_name); |
1718 | if (r < 0) | |
1719 | return r; | |
83096483 | 1720 | |
0ec0deaa | 1721 | if (unit_name_is_valid(i->name, UNIT_NAME_INSTANCE) && |
d51c4045 | 1722 | unit_name_is_valid(target_name, UNIT_NAME_TEMPLATE)) { |
83096483 | 1723 | |
0ec0deaa LP |
1724 | _cleanup_free_ char *instance = NULL; |
1725 | ||
1726 | r = unit_name_to_instance(i->name, &instance); | |
1727 | if (r < 0) | |
1728 | return r; | |
1729 | ||
d51c4045 | 1730 | r = unit_name_replace_instance(target_name, instance, &unit_instance); |
0ec0deaa LP |
1731 | if (r < 0) |
1732 | return r; | |
1733 | ||
d51c4045 | 1734 | if (streq(unit_instance, i->name)) { |
4f5c2485 ZJS |
1735 | /* We filled in the instance, and the target stayed the same? If so, |
1736 | * then let's honour the link as it is. */ | |
9f6cbcf5 | 1737 | |
4a84db4c | 1738 | r = install_info_follow(ctx, i, lp, flags, true); |
9f6cbcf5 LP |
1739 | if (r < 0) |
1740 | return r; | |
1741 | ||
1742 | continue; | |
1743 | } | |
1744 | ||
d51c4045 MY |
1745 | bn = unit_instance; |
1746 | } else | |
1747 | bn = target_name; | |
0ec0deaa | 1748 | |
4a84db4c | 1749 | r = install_info_add(ctx, bn, NULL, lp->root_dir, /* auxiliary= */ false, &i); |
0ec0deaa LP |
1750 | if (r < 0) |
1751 | return r; | |
1752 | ||
0155928c | 1753 | /* Try again, with the new target we found. */ |
4a84db4c | 1754 | r = unit_file_search(ctx, i, lp, flags); |
893275df ZJS |
1755 | if (r == -ENOENT) |
1756 | /* Translate error code to highlight this specific case */ | |
1757 | return -ENOLINK; | |
0ec0deaa | 1758 | } |
0155928c ZJS |
1759 | if (r < 0) |
1760 | return r; | |
83096483 LP |
1761 | } |
1762 | ||
0ec0deaa LP |
1763 | if (ret) |
1764 | *ret = i; | |
83096483 | 1765 | |
0ec0deaa LP |
1766 | return 0; |
1767 | } | |
83096483 | 1768 | |
ff56349d ZJS |
1769 | /** |
1770 | * Call install_info_add() with name_or_path as the path (if name_or_path starts with "/") | |
1771 | * or the name (otherwise). root_dir is prepended to the path. | |
1772 | */ | |
401017e0 | 1773 | static int install_info_add_auto( |
4a84db4c | 1774 | InstallContext *ctx, |
c3e7fba0 | 1775 | const LookupPaths *lp, |
401017e0 | 1776 | const char *name_or_path, |
0047d54d | 1777 | InstallInfo **ret) { |
401017e0 | 1778 | |
4a84db4c | 1779 | assert(ctx); |
401017e0 LP |
1780 | assert(name_or_path); |
1781 | ||
1782 | if (path_is_absolute(name_or_path)) { | |
1783 | const char *pp; | |
1784 | ||
c3e7fba0 | 1785 | pp = prefix_roota(lp->root_dir, name_or_path); |
401017e0 | 1786 | |
4a84db4c | 1787 | return install_info_add(ctx, NULL, pp, lp->root_dir, /* auxiliary= */ false, ret); |
401017e0 | 1788 | } else |
4a84db4c | 1789 | return install_info_add(ctx, name_or_path, NULL, lp->root_dir, /* auxiliary= */ false, ret); |
401017e0 LP |
1790 | } |
1791 | ||
0ec0deaa | 1792 | static int install_info_discover( |
4a84db4c | 1793 | InstallContext *ctx, |
c3e7fba0 | 1794 | const LookupPaths *lp, |
0f87041f | 1795 | const char *name_or_path, |
0ec0deaa | 1796 | SearchFlags flags, |
0047d54d | 1797 | InstallInfo **ret, |
cd44ec5a | 1798 | InstallChange **changes, |
da6053d0 | 1799 | size_t *n_changes) { |
83096483 | 1800 | |
0047d54d | 1801 | InstallInfo *info; |
0ec0deaa | 1802 | int r; |
83096483 | 1803 | |
4a84db4c | 1804 | assert(ctx); |
c3e7fba0 | 1805 | assert(lp); |
0f87041f | 1806 | assert(name_or_path); |
0ec0deaa | 1807 | |
0f87041f | 1808 | r = install_info_add_auto(ctx, lp, name_or_path, &info); |
59108fbe | 1809 | if (r >= 0) |
4a84db4c | 1810 | r = install_info_traverse(ctx, lp, info, flags, ret); |
83096483 | 1811 | |
59108fbe | 1812 | if (r < 0) |
422f80d5 LP |
1813 | return install_changes_add(changes, n_changes, r, name_or_path, NULL); |
1814 | ||
59108fbe | 1815 | return r; |
83096483 LP |
1816 | } |
1817 | ||
1e475a0a | 1818 | static int install_info_discover_and_check( |
4a84db4c ZJS |
1819 | InstallContext *ctx, |
1820 | const LookupPaths *lp, | |
0f87041f | 1821 | const char *name_or_path, |
4a84db4c | 1822 | SearchFlags flags, |
0047d54d | 1823 | InstallInfo **ret, |
cd44ec5a | 1824 | InstallChange **changes, |
4a84db4c | 1825 | size_t *n_changes) { |
1e475a0a RB |
1826 | |
1827 | int r; | |
1828 | ||
0f87041f | 1829 | r = install_info_discover(ctx, lp, name_or_path, flags, ret, changes, n_changes); |
1e475a0a RB |
1830 | if (r < 0) |
1831 | return r; | |
1832 | ||
c3e7fba0 | 1833 | return install_info_may_process(ret ? *ret : NULL, lp, changes, n_changes); |
1e475a0a RB |
1834 | } |
1835 | ||
cbfdbffb | 1836 | int unit_file_verify_alias( |
0047d54d | 1837 | const InstallInfo *info, |
cbfdbffb ZJS |
1838 | const char *dst, |
1839 | char **ret_dst, | |
cd44ec5a | 1840 | InstallChange **changes, |
cbfdbffb ZJS |
1841 | size_t *n_changes) { |
1842 | ||
3f57bc22 | 1843 | _cleanup_free_ char *dst_updated = NULL; |
aa0f357f ZJS |
1844 | int r; |
1845 | ||
3f57bc22 ZJS |
1846 | /* Verify that dst is a valid either a valid alias or a valid .wants/.requires symlink for the target |
1847 | * unit *i. Return negative on error or if not compatible, zero on success. | |
1848 | * | |
1849 | * ret_dst is set in cases where "instance propagation" happens, i.e. when the instance part is | |
1850 | * inserted into dst. It is not normally set, even on success, so that the caller can easily | |
162392b7 | 1851 | * distinguish the case where instance propagation occurred. |
f663e646 ZJS |
1852 | * |
1853 | * Returns: | |
1854 | * -EXDEV when the alias doesn't match the unit, | |
1855 | * -EUCLEAN when the name is invalid, | |
1856 | * -ELOOP when the alias it to the unit itself. | |
3f57bc22 ZJS |
1857 | */ |
1858 | ||
1859 | const char *path_alias = strrchr(dst, '/'); | |
1860 | if (path_alias) { | |
1861 | /* This branch covers legacy Alias= function of creating .wants and .requires symlinks. */ | |
1862 | _cleanup_free_ char *dir = NULL; | |
1bf15585 | 1863 | char *p; |
aa0f357f | 1864 | |
b3a9d980 | 1865 | path_alias++; /* skip over slash */ |
aa0f357f | 1866 | |
45519d13 LP |
1867 | r = path_extract_directory(dst, &dir); |
1868 | if (r < 0) | |
1869 | return log_error_errno(r, "Failed to extract parent directory from '%s': %m", dst); | |
aa0f357f | 1870 | |
1bf15585 ZJS |
1871 | p = endswith(dir, ".wants"); |
1872 | if (!p) | |
1873 | p = endswith(dir, ".requires"); | |
cbfdbffb | 1874 | if (!p) { |
422f80d5 LP |
1875 | r = install_changes_add(changes, n_changes, -EXDEV, dst, NULL); |
1876 | if (r != -EXDEV) | |
1877 | return r; | |
1878 | ||
cbfdbffb ZJS |
1879 | return log_debug_errno(SYNTHETIC_ERRNO(EXDEV), "Invalid path \"%s\" in alias.", dir); |
1880 | } | |
1881 | ||
1bf15585 ZJS |
1882 | *p = '\0'; /* dir should now be a unit name */ |
1883 | ||
73ce91a0 | 1884 | UnitNameFlags type = unit_name_classify(dir); |
cbfdbffb | 1885 | if (type < 0) { |
422f80d5 LP |
1886 | r = install_changes_add(changes, n_changes, -EXDEV, dst, NULL); |
1887 | if (r != -EXDEV) | |
1888 | return r; | |
cbfdbffb ZJS |
1889 | return log_debug_errno(SYNTHETIC_ERRNO(EXDEV), |
1890 | "Invalid unit name component \"%s\" in alias.", dir); | |
1891 | } | |
1bf15585 | 1892 | |
73ce91a0 | 1893 | const bool instance_propagation = type == UNIT_NAME_TEMPLATE; |
3f57bc22 ZJS |
1894 | |
1895 | /* That's the name we want to use for verification. */ | |
4a84db4c | 1896 | r = unit_symlink_name_compatible(path_alias, info->name, instance_propagation); |
aa0f357f | 1897 | if (r < 0) |
3f57bc22 | 1898 | return log_error_errno(r, "Failed to verify alias validity: %m"); |
cbfdbffb | 1899 | if (r == 0) { |
422f80d5 LP |
1900 | r = install_changes_add(changes, n_changes, -EXDEV, dst, info->name); |
1901 | if (r != -EXDEV) | |
1902 | return r; | |
1903 | ||
cbfdbffb ZJS |
1904 | return log_debug_errno(SYNTHETIC_ERRNO(EXDEV), |
1905 | "Invalid unit \"%s\" symlink \"%s\".", | |
1906 | info->name, dst); | |
1907 | } | |
3f57bc22 ZJS |
1908 | |
1909 | } else { | |
1910 | /* If the symlink target has an instance set and the symlink source doesn't, we "propagate | |
1911 | * the instance", i.e. instantiate the symlink source with the target instance. */ | |
1912 | if (unit_name_is_valid(dst, UNIT_NAME_TEMPLATE)) { | |
1913 | _cleanup_free_ char *inst = NULL; | |
1914 | ||
4a84db4c | 1915 | UnitNameFlags type = unit_name_to_instance(info->name, &inst); |
cbfdbffb | 1916 | if (type < 0) { |
422f80d5 LP |
1917 | r = install_changes_add(changes, n_changes, -EUCLEAN, info->name, NULL); |
1918 | if (r != -EUCLEAN) | |
1919 | return r; | |
cbfdbffb ZJS |
1920 | return log_debug_errno(type, "Failed to extract instance name from \"%s\": %m", info->name); |
1921 | } | |
3f57bc22 | 1922 | |
73ce91a0 | 1923 | if (type == UNIT_NAME_INSTANCE) { |
3f57bc22 ZJS |
1924 | r = unit_name_replace_instance(dst, inst, &dst_updated); |
1925 | if (r < 0) | |
1926 | return log_error_errno(r, "Failed to build unit name from %s+%s: %m", | |
1927 | dst, inst); | |
1928 | } | |
1929 | } | |
aa0f357f | 1930 | |
cbfdbffb | 1931 | r = unit_validate_alias_symlink_or_warn(LOG_DEBUG, dst_updated ?: dst, info->name); |
f663e646 ZJS |
1932 | if (r == -ELOOP) /* -ELOOP means self-alias, which we (quietly) ignore */ |
1933 | return r; | |
94e7298d ZJS |
1934 | if (r < 0) |
1935 | return install_changes_add(changes, n_changes, | |
1936 | r == -EINVAL ? -EXDEV : r, | |
1937 | dst_updated ?: dst, | |
1938 | info->name); | |
aa0f357f ZJS |
1939 | } |
1940 | ||
3f57bc22 | 1941 | *ret_dst = TAKE_PTR(dst_updated); |
aa0f357f ZJS |
1942 | return 0; |
1943 | } | |
1944 | ||
83096483 | 1945 | static int install_info_symlink_alias( |
4870133b | 1946 | RuntimeScope scope, |
0047d54d | 1947 | InstallInfo *info, |
c3e7fba0 | 1948 | const LookupPaths *lp, |
83096483 LP |
1949 | const char *config_path, |
1950 | bool force, | |
cd44ec5a | 1951 | InstallChange **changes, |
da6053d0 | 1952 | size_t *n_changes) { |
83096483 | 1953 | |
b2751cf0 | 1954 | int r, ret = 0; |
83096483 | 1955 | |
4a84db4c | 1956 | assert(info); |
c3e7fba0 | 1957 | assert(lp); |
83096483 LP |
1958 | assert(config_path); |
1959 | ||
4a84db4c | 1960 | STRV_FOREACH(s, info->aliases) { |
6fec0fed | 1961 | _cleanup_free_ char *alias_path = NULL, *alias_target = NULL, *dst = NULL, *dst_updated = NULL; |
83096483 | 1962 | |
b2751cf0 MY |
1963 | r = install_name_printf(scope, info, *s, &dst); |
1964 | if (r < 0) { | |
1965 | RET_GATHER(ret, install_changes_add(changes, n_changes, r, *s, NULL)); | |
0d11db59 | 1966 | continue; |
6ec4c852 | 1967 | } |
83096483 | 1968 | |
b2751cf0 MY |
1969 | r = unit_file_verify_alias(info, dst, &dst_updated, changes, n_changes); |
1970 | if (r < 0) { | |
1971 | if (r != -ELOOP) | |
1972 | RET_GATHER(ret, r); | |
aa0f357f | 1973 | continue; |
0d11db59 | 1974 | } |
3d0205f2 | 1975 | |
3f57bc22 | 1976 | alias_path = path_make_absolute(dst_updated ?: dst, config_path); |
83096483 LP |
1977 | if (!alias_path) |
1978 | return -ENOMEM; | |
1979 | ||
6fec0fed NR |
1980 | r = in_search_path(lp, info->path); |
1981 | if (r < 0) | |
1982 | return r; | |
1983 | if (r == 0) { | |
1984 | /* The unit path itself is outside of the search path. To | |
1985 | * correctly apply the alias, we need the alias symlink to | |
1986 | * point to the symlink that was created in the search path. */ | |
1987 | alias_target = path_join(config_path, info->name); | |
1988 | if (!alias_target) | |
1989 | return -ENOMEM; | |
1990 | } | |
1991 | ||
b2751cf0 MY |
1992 | bool broken; |
1993 | r = chase(alias_path, lp->root_dir, CHASE_NONEXISTENT, /* ret_path = */ NULL, /* ret_fd = */ NULL); | |
1994 | if (r < 0 && r != -ENOENT) { | |
1995 | RET_GATHER(ret, r); | |
c067e61b MY |
1996 | continue; |
1997 | } | |
b2751cf0 | 1998 | broken = r == 0; /* symlink target does not exist? */ |
c067e61b | 1999 | |
4441cf33 MY |
2000 | r = create_symlink(lp, alias_target ?: info->path, alias_path, force || broken, changes, n_changes); |
2001 | if (r != 0 && ret >= 0) | |
2002 | ret = r; | |
83096483 LP |
2003 | } |
2004 | ||
b2751cf0 | 2005 | return ret; |
83096483 LP |
2006 | } |
2007 | ||
2008 | static int install_info_symlink_wants( | |
4870133b | 2009 | RuntimeScope scope, |
9b69770a | 2010 | UnitFileFlags file_flags, |
0047d54d | 2011 | InstallInfo *info, |
c3e7fba0 | 2012 | const LookupPaths *lp, |
83096483 | 2013 | const char *config_path, |
d54c4993 LP |
2014 | char **list, |
2015 | const char *suffix, | |
cd44ec5a | 2016 | InstallChange **changes, |
da6053d0 | 2017 | size_t *n_changes) { |
83096483 | 2018 | |
acb5b834 ZJS |
2019 | _cleanup_(install_info_clear) InstallInfo instance = { |
2020 | .install_mode = _INSTALL_MODE_INVALID, | |
2021 | }; | |
2022 | ||
b0ec372a | 2023 | UnitNameFlags valid_dst_type = UNIT_NAME_ANY; |
d54c4993 | 2024 | const char *n; |
dd6b325a | 2025 | int r, q; |
83096483 | 2026 | |
4a84db4c | 2027 | assert(info); |
c3e7fba0 | 2028 | assert(lp); |
83096483 LP |
2029 | assert(config_path); |
2030 | ||
047d91f9 ZJS |
2031 | if (strv_isempty(list)) |
2032 | return 0; | |
2033 | ||
4a84db4c | 2034 | if (unit_name_is_valid(info->name, UNIT_NAME_PLAIN | UNIT_NAME_INSTANCE)) |
b0ec372a | 2035 | /* Not a template unit. Use the name directly. */ |
4a84db4c | 2036 | n = info->name; |
b0ec372a | 2037 | |
4a84db4c | 2038 | else if (info->default_instance) { |
b0ec372a | 2039 | /* If this is a template, and we have a default instance, use it. */ |
e4086ae0 | 2040 | |
acb5b834 | 2041 | r = unit_name_replace_instance(info->name, info->default_instance, &instance.name); |
7410616c LP |
2042 | if (r < 0) |
2043 | return r; | |
83096483 | 2044 | |
c3e7fba0 | 2045 | r = unit_file_search(NULL, &instance, lp, SEARCH_FOLLOW_CONFIG_SYMLINKS); |
047d91f9 ZJS |
2046 | if (r < 0) |
2047 | return r; | |
2048 | ||
94e7298d ZJS |
2049 | if (instance.install_mode == INSTALL_MODE_MASKED) |
2050 | return install_changes_add(changes, n_changes, -ERFKILL, instance.path, NULL); | |
047d91f9 | 2051 | |
acb5b834 | 2052 | n = instance.name; |
b0ec372a ZJS |
2053 | |
2054 | } else { | |
2055 | /* We have a template, but no instance yet. When used with an instantiated unit, we will get | |
2056 | * the instance from that unit. Cannot be used with non-instance units. */ | |
2057 | ||
2058 | valid_dst_type = UNIT_NAME_INSTANCE | UNIT_NAME_TEMPLATE; | |
4a84db4c | 2059 | n = info->name; |
b0ec372a | 2060 | } |
78d54bd4 | 2061 | |
f5a0162d | 2062 | r = 0; |
d54c4993 | 2063 | STRV_FOREACH(s, list) { |
9aa3d6b4 | 2064 | _cleanup_free_ char *path = NULL, *dst = NULL; |
78d54bd4 | 2065 | |
38e8a6c7 | 2066 | q = install_name_printf(scope, info, *s, &dst); |
f5a0162d | 2067 | if (q < 0) { |
b2751cf0 | 2068 | RET_GATHER(r, install_changes_add(changes, n_changes, q, *s, NULL)); |
f8979e86 | 2069 | continue; |
f5a0162d | 2070 | } |
7584d236 | 2071 | |
b0ec372a | 2072 | if (!unit_name_is_valid(dst, valid_dst_type)) { |
ad5fdd39 ZJS |
2073 | /* Generate a proper error here: EUCLEAN if the name is generally bad, EIDRM if the |
2074 | * template status doesn't match. If we are doing presets don't bother reporting the | |
2075 | * error. This also covers cases like 'systemctl preset serial-getty@.service', which | |
2076 | * has no DefaultInstance, so there is nothing we can do. At the same time, | |
2077 | * 'systemctl enable serial-getty@.service' should fail, the user should specify an | |
2078 | * instance like in 'systemctl enable serial-getty@ttyS0.service'. | |
2079 | */ | |
b2751cf0 | 2080 | if (FLAGS_SET(file_flags, UNIT_FILE_IGNORE_AUXILIARY_FAILURE)) |
ad5fdd39 ZJS |
2081 | continue; |
2082 | ||
94e7298d | 2083 | if (unit_name_is_valid(dst, UNIT_NAME_ANY)) |
b2751cf0 | 2084 | RET_GATHER(r, install_changes_add(changes, n_changes, -EIDRM, dst, n)); |
94e7298d | 2085 | else |
b2751cf0 | 2086 | RET_GATHER(r, install_changes_add(changes, n_changes, -EUCLEAN, dst, NULL)); |
b0ec372a | 2087 | |
78d54bd4 LP |
2088 | continue; |
2089 | } | |
2090 | ||
9aa3d6b4 | 2091 | path = strjoin(config_path, "/", dst, suffix, n); |
d54c4993 | 2092 | if (!path) |
78d54bd4 LP |
2093 | return -ENOMEM; |
2094 | ||
b2751cf0 | 2095 | q = create_symlink(lp, info->path, path, /* force = */ true, changes, n_changes); |
4441cf33 | 2096 | if (q != 0 && r >= 0) |
78d54bd4 | 2097 | r = q; |
8ae27441 | 2098 | |
f31f10a6 ZJS |
2099 | if (unit_file_exists(scope, lp, dst) == 0) { |
2100 | q = install_changes_add(changes, n_changes, INSTALL_CHANGE_DESTINATION_NOT_PRESENT, dst, info->path); | |
2101 | if (q < 0) | |
2102 | return q; | |
2103 | } | |
78d54bd4 LP |
2104 | } |
2105 | ||
2106 | return r; | |
2107 | } | |
2108 | ||
83096483 | 2109 | static int install_info_symlink_link( |
0047d54d | 2110 | InstallInfo *info, |
c3e7fba0 | 2111 | const LookupPaths *lp, |
83096483 LP |
2112 | const char *config_path, |
2113 | bool force, | |
cd44ec5a | 2114 | InstallChange **changes, |
da6053d0 | 2115 | size_t *n_changes) { |
83096483 | 2116 | |
7fd1b19b | 2117 | _cleanup_free_ char *path = NULL; |
1dacfd2a | 2118 | int r; |
83096483 | 2119 | |
4a84db4c | 2120 | assert(info); |
c3e7fba0 | 2121 | assert(lp); |
83096483 | 2122 | assert(config_path); |
4a84db4c | 2123 | assert(info->path); |
83096483 | 2124 | |
4a84db4c | 2125 | r = in_search_path(lp, info->path); |
fe4aede9 | 2126 | if (r < 0) |
83096483 | 2127 | return r; |
fe4aede9 ZJS |
2128 | if (r > 0) |
2129 | return 0; | |
83096483 | 2130 | |
4a84db4c | 2131 | path = path_join(config_path, info->name); |
1dacfd2a | 2132 | if (!path) |
83096483 LP |
2133 | return -ENOMEM; |
2134 | ||
4a84db4c | 2135 | return create_symlink(lp, info->path, path, force, changes, n_changes); |
83096483 LP |
2136 | } |
2137 | ||
2138 | static int install_info_apply( | |
4870133b | 2139 | RuntimeScope scope, |
9b69770a | 2140 | UnitFileFlags file_flags, |
0047d54d | 2141 | InstallInfo *info, |
c3e7fba0 | 2142 | const LookupPaths *lp, |
83096483 | 2143 | const char *config_path, |
cd44ec5a | 2144 | InstallChange **changes, |
da6053d0 | 2145 | size_t *n_changes) { |
83096483 LP |
2146 | |
2147 | int r, q; | |
2148 | ||
4a84db4c | 2149 | assert(info); |
c3e7fba0 | 2150 | assert(lp); |
83096483 LP |
2151 | assert(config_path); |
2152 | ||
91810c8f | 2153 | if (info->install_mode != INSTALL_MODE_REGULAR) |
0ec0deaa LP |
2154 | return 0; |
2155 | ||
9b69770a ZJS |
2156 | bool force = file_flags & UNIT_FILE_FORCE; |
2157 | ||
20d68b3a ZJS |
2158 | r = install_info_symlink_link(info, lp, config_path, force, changes, n_changes); |
2159 | /* Do not count links to the unit file towards the "carries_install_info" count */ | |
2160 | if (r < 0) | |
2161 | /* If linking of the file failed, do not try to create other symlinks, | |
2162 | * because they might would pointing to a non-existent or wrong unit. */ | |
2163 | return r; | |
2164 | ||
4a84db4c | 2165 | r = install_info_symlink_alias(scope, info, lp, config_path, force, changes, n_changes); |
83096483 | 2166 | |
4a84db4c | 2167 | q = install_info_symlink_wants(scope, file_flags, info, lp, config_path, info->wanted_by, ".wants/", changes, n_changes); |
a159aa07 | 2168 | if (q != 0 && r >= 0) |
83096483 LP |
2169 | r = q; |
2170 | ||
4a84db4c | 2171 | q = install_info_symlink_wants(scope, file_flags, info, lp, config_path, info->required_by, ".requires/", changes, n_changes); |
a159aa07 | 2172 | if (q != 0 && r >= 0) |
78d54bd4 LP |
2173 | r = q; |
2174 | ||
38f90179 | 2175 | q = install_info_symlink_wants(scope, file_flags, info, lp, config_path, info->upheld_by, ".upholds/", changes, n_changes); |
a159aa07 | 2176 | if (q != 0 && r >= 0) |
38f90179 MY |
2177 | r = q; |
2178 | ||
83096483 LP |
2179 | return r; |
2180 | } | |
2181 | ||
2182 | static int install_context_apply( | |
4a84db4c | 2183 | InstallContext *ctx, |
c3e7fba0 | 2184 | const LookupPaths *lp, |
4a84db4c | 2185 | UnitFileFlags file_flags, |
83096483 | 2186 | const char *config_path, |
0ec0deaa | 2187 | SearchFlags flags, |
cd44ec5a | 2188 | InstallChange **changes, |
da6053d0 | 2189 | size_t *n_changes) { |
83096483 | 2190 | |
0047d54d | 2191 | InstallInfo *i; |
0ec0deaa | 2192 | int r; |
83096483 | 2193 | |
4a84db4c | 2194 | assert(ctx); |
c3e7fba0 | 2195 | assert(lp); |
83096483 LP |
2196 | assert(config_path); |
2197 | ||
4a84db4c | 2198 | if (ordered_hashmap_isempty(ctx->will_process)) |
d25e100b | 2199 | return 0; |
83096483 | 2200 | |
4a84db4c | 2201 | r = ordered_hashmap_ensure_allocated(&ctx->have_processed, &string_hash_ops); |
d25e100b LP |
2202 | if (r < 0) |
2203 | return r; | |
83096483 | 2204 | |
2d5c93c7 | 2205 | r = 0; |
4a84db4c | 2206 | while ((i = ordered_hashmap_first(ctx->will_process))) { |
0ec0deaa | 2207 | int q; |
83096483 | 2208 | |
4a84db4c | 2209 | q = ordered_hashmap_move_one(ctx->have_processed, ctx->will_process, i->name); |
0ec0deaa LP |
2210 | if (q < 0) |
2211 | return q; | |
83096483 | 2212 | |
4a84db4c | 2213 | q = install_info_traverse(ctx, lp, i, flags, NULL); |
459500a3 | 2214 | if (q < 0) { |
3aa96361 | 2215 | if (i->auxiliary) { |
4a4af850 | 2216 | q = install_changes_add(changes, n_changes, INSTALL_CHANGE_AUXILIARY_FAILED, i->name, NULL); |
3aa96361 ZJS |
2217 | if (q < 0) |
2218 | return q; | |
2219 | continue; | |
2220 | } | |
2221 | ||
94e7298d | 2222 | return install_changes_add(changes, n_changes, q, i->name, NULL); |
db093eed | 2223 | } |
0ec0deaa | 2224 | |
f1651715 | 2225 | /* We can attempt to process a masked unit when a different unit |
047d91f9 | 2226 | * that we were processing specifies it in Also=. */ |
91810c8f | 2227 | if (i->install_mode == INSTALL_MODE_MASKED) { |
f31f10a6 ZJS |
2228 | q = install_changes_add(changes, n_changes, INSTALL_CHANGE_IS_MASKED, i->path, NULL); |
2229 | if (q < 0) | |
2230 | return q; | |
f1651715 | 2231 | if (r >= 0) |
047d91f9 ZJS |
2232 | /* Assume that something *could* have been enabled here, |
2233 | * avoid "empty [Install] section" warning. */ | |
f1651715 ZJS |
2234 | r += 1; |
2235 | continue; | |
2236 | } | |
2237 | ||
91810c8f | 2238 | if (i->install_mode != INSTALL_MODE_REGULAR) |
0ec0deaa | 2239 | continue; |
83096483 | 2240 | |
4a84db4c | 2241 | q = install_info_apply(ctx->scope, file_flags, i, lp, config_path, changes, n_changes); |
0ec0deaa LP |
2242 | if (r >= 0) { |
2243 | if (q < 0) | |
2244 | r = q; | |
2245 | else | |
596fc263 | 2246 | r += q; |
0ec0deaa | 2247 | } |
83096483 LP |
2248 | } |
2249 | ||
2250 | return r; | |
2251 | } | |
2252 | ||
2253 | static int install_context_mark_for_removal( | |
4a84db4c | 2254 | InstallContext *ctx, |
c3e7fba0 | 2255 | const LookupPaths *lp, |
83096483 | 2256 | Set **remove_symlinks_to, |
1830ac51 | 2257 | const char *config_path, |
cd44ec5a | 2258 | InstallChange **changes, |
da6053d0 | 2259 | size_t *n_changes) { |
83096483 | 2260 | |
0047d54d | 2261 | InstallInfo *i; |
0ec0deaa | 2262 | int r; |
83096483 | 2263 | |
4a84db4c | 2264 | assert(ctx); |
c3e7fba0 | 2265 | assert(lp); |
1830ac51 | 2266 | assert(config_path); |
83096483 LP |
2267 | |
2268 | /* Marks all items for removal */ | |
2269 | ||
4a84db4c | 2270 | if (ordered_hashmap_isempty(ctx->will_process)) |
d25e100b | 2271 | return 0; |
83096483 | 2272 | |
4a84db4c | 2273 | r = ordered_hashmap_ensure_allocated(&ctx->have_processed, &string_hash_ops); |
d25e100b LP |
2274 | if (r < 0) |
2275 | return r; | |
83096483 | 2276 | |
4a84db4c | 2277 | while ((i = ordered_hashmap_first(ctx->will_process))) { |
83096483 | 2278 | |
4a84db4c | 2279 | r = ordered_hashmap_move_one(ctx->have_processed, ctx->will_process, i->name); |
0ec0deaa | 2280 | if (r < 0) |
83096483 | 2281 | return r; |
29283ea4 | 2282 | |
4a84db4c | 2283 | r = install_info_traverse(ctx, lp, i, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS, NULL); |
19539807 | 2284 | if (r == -ENOLINK) { |
637d6e5b | 2285 | log_debug_errno(r, "Name %s leads to a dangling symlink, removing name.", i->name); |
f31f10a6 ZJS |
2286 | r = install_changes_add(changes, n_changes, INSTALL_CHANGE_IS_DANGLING, i->path ?: i->name, NULL); |
2287 | if (r < 0) | |
2288 | return r; | |
637d6e5b | 2289 | } else if (r == -ENOENT) { |
637d6e5b LP |
2290 | if (i->auxiliary) /* some unit specified in Also= or similar is missing */ |
2291 | log_debug_errno(r, "Auxiliary unit of %s not found, removing name.", i->name); | |
2292 | else { | |
2293 | log_debug_errno(r, "Unit %s not found, removing name.", i->name); | |
f31f10a6 | 2294 | r = install_changes_add(changes, n_changes, r, i->path ?: i->name, NULL); |
5163c9b1 LB |
2295 | /* In case there's no unit, we still want to remove any leftover symlink, even if |
2296 | * the unit might have been removed already, hence treating ENOENT as non-fatal. */ | |
2297 | if (r != -ENOENT) | |
f31f10a6 | 2298 | return r; |
637d6e5b | 2299 | } |
637d6e5b LP |
2300 | } else if (r < 0) { |
2301 | log_debug_errno(r, "Failed to find unit %s, removing name: %m", i->name); | |
422f80d5 LP |
2302 | int k = install_changes_add(changes, n_changes, r, i->path ?: i->name, NULL); |
2303 | if (k != r) | |
2304 | return k; | |
91810c8f | 2305 | } else if (i->install_mode == INSTALL_MODE_MASKED) { |
637d6e5b | 2306 | log_debug("Unit file %s is masked, ignoring.", i->name); |
422f80d5 LP |
2307 | r = install_changes_add(changes, n_changes, INSTALL_CHANGE_IS_MASKED, i->path ?: i->name, NULL); |
2308 | if (r < 0) | |
2309 | return r; | |
637d6e5b | 2310 | continue; |
91810c8f ZJS |
2311 | } else if (i->install_mode != INSTALL_MODE_REGULAR) { |
2312 | log_debug("Unit %s has install mode %s, ignoring.", | |
2313 | i->name, install_mode_to_string(i->install_mode) ?: "invalid"); | |
0ec0deaa | 2314 | continue; |
64f9280e | 2315 | } |
0ec0deaa LP |
2316 | |
2317 | r = mark_symlink_for_removal(remove_symlinks_to, i->name); | |
2318 | if (r < 0) | |
2319 | return r; | |
2320 | } | |
2321 | ||
2322 | return 0; | |
2323 | } | |
2324 | ||
2325 | int unit_file_mask( | |
4870133b | 2326 | RuntimeScope scope, |
b3796dd8 | 2327 | UnitFileFlags flags, |
0ec0deaa | 2328 | const char *root_dir, |
e9e77e44 | 2329 | char * const *names, |
cd44ec5a | 2330 | InstallChange **changes, |
da6053d0 | 2331 | size_t *n_changes) { |
0ec0deaa | 2332 | |
7dfc7139 | 2333 | _cleanup_(lookup_paths_done) LookupPaths lp = {}; |
e1c5c2b0 | 2334 | const char *config_path; |
0ec0deaa LP |
2335 | int r; |
2336 | ||
2337 | assert(scope >= 0); | |
4870133b | 2338 | assert(scope < _RUNTIME_SCOPE_MAX); |
0ec0deaa | 2339 | |
c3e7fba0 | 2340 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
0ec0deaa LP |
2341 | if (r < 0) |
2342 | return r; | |
2343 | ||
c3e7fba0 | 2344 | config_path = (flags & UNIT_FILE_RUNTIME) ? lp.runtime_config : lp.persistent_config; |
d0fd66a3 LP |
2345 | if (!config_path) |
2346 | return -ENXIO; | |
e1c5c2b0 | 2347 | |
2886cadc MY |
2348 | r = 0; |
2349 | ||
0f87041f | 2350 | STRV_FOREACH(name, names) { |
0ec0deaa | 2351 | _cleanup_free_ char *path = NULL; |
0ec0deaa | 2352 | |
0f87041f | 2353 | if (!unit_name_is_valid(*name, UNIT_NAME_ANY)) { |
2886cadc | 2354 | RET_GATHER(r, -EINVAL); |
0ec0deaa LP |
2355 | continue; |
2356 | } | |
2357 | ||
0f87041f | 2358 | path = path_make_absolute(*name, config_path); |
0ec0deaa LP |
2359 | if (!path) |
2360 | return -ENOMEM; | |
29283ea4 | 2361 | |
2886cadc | 2362 | RET_GATHER(r, create_symlink(&lp, "/dev/null", path, flags & UNIT_FILE_FORCE, changes, n_changes)); |
83096483 LP |
2363 | } |
2364 | ||
2365 | return r; | |
2366 | } | |
2367 | ||
0ec0deaa | 2368 | int unit_file_unmask( |
4870133b | 2369 | RuntimeScope scope, |
b3796dd8 | 2370 | UnitFileFlags flags, |
0ec0deaa | 2371 | const char *root_dir, |
e9e77e44 | 2372 | char * const *names, |
cd44ec5a | 2373 | InstallChange **changes, |
da6053d0 | 2374 | size_t *n_changes) { |
0ec0deaa | 2375 | |
7dfc7139 | 2376 | _cleanup_(lookup_paths_done) LookupPaths lp = {}; |
0ec0deaa | 2377 | _cleanup_set_free_free_ Set *remove_symlinks_to = NULL; |
dc7dd61d | 2378 | _cleanup_strv_free_ char **todo = NULL; |
e1c5c2b0 | 2379 | const char *config_path; |
319a4f4b | 2380 | size_t n_todo = 0; |
0ec0deaa LP |
2381 | int r, q; |
2382 | ||
2383 | assert(scope >= 0); | |
4870133b | 2384 | assert(scope < _RUNTIME_SCOPE_MAX); |
0ec0deaa | 2385 | |
c3e7fba0 | 2386 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
0ec0deaa LP |
2387 | if (r < 0) |
2388 | return r; | |
2389 | ||
c3e7fba0 | 2390 | config_path = (flags & UNIT_FILE_RUNTIME) ? lp.runtime_config : lp.persistent_config; |
1830ac51 MB |
2391 | if (!config_path) |
2392 | return -ENXIO; | |
2393 | ||
d3e85c9c | 2394 | bool dry_run = flags & UNIT_FILE_DRY_RUN; |
1830ac51 | 2395 | |
0f87041f | 2396 | STRV_FOREACH(name, names) { |
0f87041f | 2397 | if (!unit_name_is_valid(*name, UNIT_NAME_ANY)) |
0ec0deaa LP |
2398 | return -EINVAL; |
2399 | ||
7c52d523 | 2400 | /* If root_dir is set, we don't care about kernel command line or generators. |
bf3b0d5f ZJS |
2401 | * But if it is not set, we need to check for interference. */ |
2402 | if (!root_dir) { | |
2403 | _cleanup_(install_info_clear) InstallInfo info = { | |
2404 | .name = *name, /* We borrow *name temporarily… */ | |
2405 | .install_mode = _INSTALL_MODE_INVALID, | |
2406 | }; | |
2407 | ||
2408 | r = unit_file_search(NULL, &info, &lp, 0); | |
2409 | if (r < 0) { | |
2410 | if (r != -ENOENT) | |
2411 | log_debug_errno(r, "Failed to look up unit %s, ignoring: %m", info.name); | |
f31f10a6 ZJS |
2412 | } else if (info.install_mode == INSTALL_MODE_MASKED && |
2413 | path_is_generator(&lp, info.path)) { | |
2414 | r = install_changes_add(changes, n_changes, | |
2415 | INSTALL_CHANGE_IS_MASKED_GENERATOR, info.name, info.path); | |
2416 | if (r < 0) | |
2417 | return r; | |
bf3b0d5f ZJS |
2418 | } |
2419 | ||
2420 | TAKE_PTR(info.name); /* … and give it back here */ | |
2421 | } | |
2422 | ||
2423 | _cleanup_free_ char *path = path_make_absolute(*name, config_path); | |
1830ac51 MB |
2424 | if (!path) |
2425 | return -ENOMEM; | |
0ec0deaa | 2426 | |
1830ac51 MB |
2427 | r = null_or_empty_path(path); |
2428 | if (r == -ENOENT) | |
2429 | continue; | |
2430 | if (r < 0) | |
2431 | return r; | |
2432 | if (r == 0) | |
2433 | continue; | |
0ec0deaa | 2434 | |
319a4f4b | 2435 | if (!GREEDY_REALLOC0(todo, n_todo + 2)) |
1830ac51 | 2436 | return -ENOMEM; |
d054eae6 | 2437 | |
0f87041f | 2438 | todo[n_todo] = strdup(*name); |
1830ac51 MB |
2439 | if (!todo[n_todo]) |
2440 | return -ENOMEM; | |
4910b350 | 2441 | |
1830ac51 | 2442 | n_todo++; |
0ec0deaa LP |
2443 | } |
2444 | ||
2445 | strv_uniq(todo); | |
2446 | ||
2447 | r = 0; | |
1830ac51 MB |
2448 | STRV_FOREACH(i, todo) { |
2449 | _cleanup_free_ char *path = NULL; | |
2450 | const char *rp; | |
0ec0deaa | 2451 | |
1830ac51 MB |
2452 | path = path_make_absolute(*i, config_path); |
2453 | if (!path) | |
2454 | return -ENOMEM; | |
4910b350 | 2455 | |
1830ac51 | 2456 | if (!dry_run && unlink(path) < 0) { |
64d61d19 LP |
2457 | if (errno != ENOENT) |
2458 | RET_GATHER(r, install_changes_add(changes, n_changes, -errno, path, NULL)); | |
0ec0deaa | 2459 | |
1830ac51 | 2460 | continue; |
4910b350 | 2461 | } |
401017e0 | 2462 | |
f31f10a6 ZJS |
2463 | q = install_changes_add(changes, n_changes, INSTALL_CHANGE_UNLINK, path, NULL); |
2464 | if (q < 0) | |
2465 | return q; | |
1830ac51 | 2466 | |
c3e7fba0 | 2467 | rp = skip_root(lp.root_dir, path); |
1830ac51 MB |
2468 | q = mark_symlink_for_removal(&remove_symlinks_to, rp ?: path); |
2469 | if (q < 0) | |
2470 | return q; | |
0ec0deaa LP |
2471 | } |
2472 | ||
2886cadc | 2473 | RET_GATHER(r, remove_marked_symlinks(remove_symlinks_to, config_path, &lp, dry_run, changes, n_changes)); |
1830ac51 | 2474 | |
0ec0deaa LP |
2475 | return r; |
2476 | } | |
2477 | ||
2478 | int unit_file_link( | |
4870133b | 2479 | RuntimeScope scope, |
b3796dd8 | 2480 | UnitFileFlags flags, |
e94937df | 2481 | const char *root_dir, |
e9e77e44 | 2482 | char * const *files, |
cd44ec5a | 2483 | InstallChange **changes, |
da6053d0 | 2484 | size_t *n_changes) { |
e94937df | 2485 | |
7dfc7139 | 2486 | _cleanup_(lookup_paths_done) LookupPaths lp = {}; |
0bb4614a | 2487 | _cleanup_ordered_hashmap_free_ OrderedHashmap *todo = NULL; |
e1c5c2b0 | 2488 | const char *config_path; |
b2751cf0 | 2489 | int r; |
e94937df LN |
2490 | |
2491 | assert(scope >= 0); | |
4870133b | 2492 | assert(scope < _RUNTIME_SCOPE_MAX); |
0bb4614a MY |
2493 | assert(changes); |
2494 | assert(n_changes); | |
e94937df | 2495 | |
c3e7fba0 | 2496 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
e94937df LN |
2497 | if (r < 0) |
2498 | return r; | |
2499 | ||
0bb4614a | 2500 | config_path = FLAGS_SET(flags, UNIT_FILE_RUNTIME) ? lp.runtime_config : lp.persistent_config; |
d0fd66a3 LP |
2501 | if (!config_path) |
2502 | return -ENXIO; | |
e94937df | 2503 | |
0f87041f | 2504 | STRV_FOREACH(file, files) { |
0bb4614a MY |
2505 | _cleanup_free_ char *fn = NULL, *path = NULL, *full = NULL; |
2506 | ||
2507 | if (ordered_hashmap_contains(todo, *file)) | |
2508 | continue; | |
e94937df | 2509 | |
0f87041f | 2510 | if (!path_is_absolute(*file)) |
81de6962 | 2511 | return install_changes_add(changes, n_changes, -EINVAL, *file, NULL); |
e94937df | 2512 | |
0bb4614a MY |
2513 | r = path_extract_filename(*file, &fn); |
2514 | if (r < 0) | |
2515 | return install_changes_add(changes, n_changes, r, *file, NULL); | |
2516 | ||
0ec0deaa | 2517 | if (!unit_name_is_valid(fn, UNIT_NAME_ANY)) |
81de6962 | 2518 | return install_changes_add(changes, n_changes, -EUCLEAN, *file, NULL); |
0ec0deaa | 2519 | |
0f87041f | 2520 | full = path_join(lp.root_dir, *file); |
0ec0deaa LP |
2521 | if (!full) |
2522 | return -ENOMEM; | |
2523 | ||
0bb4614a | 2524 | r = verify_regular_at(AT_FDCWD, full, /* follow = */ false); |
3cc44114 | 2525 | if (r < 0) |
81de6962 | 2526 | return install_changes_add(changes, n_changes, r, *file, NULL); |
0ec0deaa | 2527 | |
81de6962 ZJS |
2528 | r = in_search_path(&lp, *file); |
2529 | if (r < 0) | |
2530 | return install_changes_add(changes, n_changes, r, *file, NULL); | |
2531 | if (r > 0) | |
a6f318a5 | 2532 | /* A silent noop if the file is already in the search path. */ |
0ec0deaa LP |
2533 | continue; |
2534 | ||
05adb256 MY |
2535 | if (underneath_search_path(&lp, *file)) |
2536 | return install_changes_add(changes, n_changes, -ETXTBSY, *file, NULL); | |
a6f318a5 | 2537 | |
0bb4614a MY |
2538 | path = strdup(*file); |
2539 | if (!path) | |
0ec0deaa LP |
2540 | return -ENOMEM; |
2541 | ||
0bb4614a MY |
2542 | r = ordered_hashmap_ensure_put(&todo, &path_hash_ops_free_free, path, fn); |
2543 | if (r < 0) | |
2544 | return r; | |
2545 | assert(r > 0); | |
8af35ba6 | 2546 | |
0bb4614a MY |
2547 | TAKE_PTR(path); |
2548 | TAKE_PTR(fn); | |
e94937df LN |
2549 | } |
2550 | ||
0ec0deaa | 2551 | r = 0; |
0bb4614a MY |
2552 | |
2553 | const char *fn, *path; | |
2554 | ORDERED_HASHMAP_FOREACH_KEY(fn, path, todo) { | |
401017e0 | 2555 | _cleanup_free_ char *new_path = NULL; |
0ec0deaa | 2556 | |
0bb4614a | 2557 | new_path = path_make_absolute(fn, config_path); |
401017e0 | 2558 | if (!new_path) |
0ec0deaa LP |
2559 | return -ENOMEM; |
2560 | ||
0bb4614a | 2561 | RET_GATHER(r, create_symlink(&lp, path, new_path, FLAGS_SET(flags, UNIT_FILE_FORCE), changes, n_changes)); |
2d5c93c7 MS |
2562 | } |
2563 | ||
0ec0deaa LP |
2564 | return r; |
2565 | } | |
2566 | ||
c3e7fba0 | 2567 | static int path_shall_revert(const LookupPaths *lp, const char *path) { |
344ca755 LP |
2568 | int r; |
2569 | ||
c3e7fba0 | 2570 | assert(lp); |
344ca755 LP |
2571 | assert(path); |
2572 | ||
2573 | /* Checks whether the path is one where the drop-in directories shall be removed. */ | |
2574 | ||
c3e7fba0 | 2575 | r = path_is_config(lp, path, true); |
344ca755 LP |
2576 | if (r != 0) |
2577 | return r; | |
2578 | ||
c3e7fba0 | 2579 | r = path_is_control(lp, path); |
344ca755 LP |
2580 | if (r != 0) |
2581 | return r; | |
2582 | ||
c3e7fba0 | 2583 | return path_is_transient(lp, path); |
344ca755 LP |
2584 | } |
2585 | ||
2586 | int unit_file_revert( | |
4870133b | 2587 | RuntimeScope scope, |
344ca755 | 2588 | const char *root_dir, |
e9e77e44 | 2589 | char * const *names, |
cd44ec5a | 2590 | InstallChange **changes, |
da6053d0 | 2591 | size_t *n_changes) { |
344ca755 LP |
2592 | |
2593 | _cleanup_set_free_free_ Set *remove_symlinks_to = NULL; | |
7dfc7139 | 2594 | _cleanup_(lookup_paths_done) LookupPaths lp = {}; |
344ca755 | 2595 | _cleanup_strv_free_ char **todo = NULL; |
319a4f4b | 2596 | size_t n_todo = 0; |
344ca755 LP |
2597 | int r, q; |
2598 | ||
2599 | /* Puts a unit file back into vendor state. This means: | |
2600 | * | |
0f87041f ZJS |
2601 | * a) we remove all drop-in snippets added by the user ("config"), add to transient units |
2602 | * ("transient"), and added via "systemctl set-property" ("control"), but not if the drop-in is | |
2603 | * generated ("generated"). | |
344ca755 | 2604 | * |
0f87041f ZJS |
2605 | * c) if there's a vendor unit file (i.e. one in /usr) we remove any configured overriding unit files |
2606 | * (i.e. in "config", but not in "transient" or "control" or even "generated"). | |
344ca755 | 2607 | * |
4f25723c | 2608 | * We remove all that in both the runtime and the persistent directories, if that applies. |
344ca755 LP |
2609 | */ |
2610 | ||
c3e7fba0 | 2611 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
344ca755 LP |
2612 | if (r < 0) |
2613 | return r; | |
2614 | ||
0f87041f | 2615 | STRV_FOREACH(name, names) { |
344ca755 | 2616 | bool has_vendor = false; |
344ca755 | 2617 | |
0f87041f | 2618 | if (!unit_name_is_valid(*name, UNIT_NAME_ANY)) |
344ca755 LP |
2619 | return -EINVAL; |
2620 | ||
c3e7fba0 | 2621 | STRV_FOREACH(p, lp.search_path) { |
344ca755 LP |
2622 | _cleanup_free_ char *path = NULL, *dropin = NULL; |
2623 | struct stat st; | |
2624 | ||
0f87041f | 2625 | path = path_make_absolute(*name, *p); |
344ca755 LP |
2626 | if (!path) |
2627 | return -ENOMEM; | |
2628 | ||
81de6962 | 2629 | r = RET_NERRNO(lstat(path, &st)); |
344ca755 | 2630 | if (r < 0) { |
81de6962 ZJS |
2631 | if (r != -ENOENT) |
2632 | return install_changes_add(changes, n_changes, r, path, NULL); | |
344ca755 LP |
2633 | } else if (S_ISREG(st.st_mode)) { |
2634 | /* Check if there's a vendor version */ | |
c3e7fba0 | 2635 | r = path_is_vendor_or_generator(&lp, path); |
344ca755 | 2636 | if (r < 0) |
81de6962 | 2637 | return install_changes_add(changes, n_changes, r, path, NULL); |
344ca755 LP |
2638 | if (r > 0) |
2639 | has_vendor = true; | |
2640 | } | |
2641 | ||
b910cc72 | 2642 | dropin = strjoin(path, ".d"); |
344ca755 LP |
2643 | if (!dropin) |
2644 | return -ENOMEM; | |
2645 | ||
81de6962 | 2646 | r = RET_NERRNO(lstat(dropin, &st)); |
344ca755 | 2647 | if (r < 0) { |
81de6962 ZJS |
2648 | if (r != -ENOENT) |
2649 | return install_changes_add(changes, n_changes, r, dropin, NULL); | |
344ca755 LP |
2650 | } else if (S_ISDIR(st.st_mode)) { |
2651 | /* Remove the drop-ins */ | |
c3e7fba0 | 2652 | r = path_shall_revert(&lp, dropin); |
344ca755 | 2653 | if (r < 0) |
81de6962 | 2654 | return install_changes_add(changes, n_changes, r, dropin, NULL); |
344ca755 | 2655 | if (r > 0) { |
319a4f4b | 2656 | if (!GREEDY_REALLOC0(todo, n_todo + 2)) |
344ca755 LP |
2657 | return -ENOMEM; |
2658 | ||
1cc6c93a | 2659 | todo[n_todo++] = TAKE_PTR(dropin); |
344ca755 LP |
2660 | } |
2661 | } | |
2662 | } | |
2663 | ||
2664 | if (!has_vendor) | |
2665 | continue; | |
2666 | ||
2667 | /* OK, there's a vendor version, hence drop all configuration versions */ | |
c3e7fba0 | 2668 | STRV_FOREACH(p, lp.search_path) { |
344ca755 LP |
2669 | _cleanup_free_ char *path = NULL; |
2670 | struct stat st; | |
2671 | ||
0f87041f | 2672 | path = path_make_absolute(*name, *p); |
344ca755 LP |
2673 | if (!path) |
2674 | return -ENOMEM; | |
2675 | ||
81de6962 | 2676 | r = RET_NERRNO(lstat(path, &st)); |
344ca755 | 2677 | if (r < 0) { |
81de6962 ZJS |
2678 | if (r != -ENOENT) |
2679 | return install_changes_add(changes, n_changes, r, path, NULL); | |
344ca755 | 2680 | } else if (S_ISREG(st.st_mode) || S_ISLNK(st.st_mode)) { |
c3e7fba0 | 2681 | r = path_is_config(&lp, path, true); |
344ca755 | 2682 | if (r < 0) |
81de6962 | 2683 | return install_changes_add(changes, n_changes, r, path, NULL); |
344ca755 | 2684 | if (r > 0) { |
319a4f4b | 2685 | if (!GREEDY_REALLOC0(todo, n_todo + 2)) |
344ca755 LP |
2686 | return -ENOMEM; |
2687 | ||
1cc6c93a | 2688 | todo[n_todo++] = TAKE_PTR(path); |
344ca755 LP |
2689 | } |
2690 | } | |
2691 | } | |
2692 | } | |
2693 | ||
2694 | strv_uniq(todo); | |
2695 | ||
2696 | r = 0; | |
2697 | STRV_FOREACH(i, todo) { | |
2698 | _cleanup_strv_free_ char **fs = NULL; | |
2699 | const char *rp; | |
344ca755 LP |
2700 | |
2701 | (void) get_files_in_directory(*i, &fs); | |
2702 | ||
2703 | q = rm_rf(*i, REMOVE_ROOT|REMOVE_PHYSICAL); | |
2704 | if (q < 0 && q != -ENOENT && r >= 0) { | |
2705 | r = q; | |
2706 | continue; | |
2707 | } | |
2708 | ||
2709 | STRV_FOREACH(j, fs) { | |
2710 | _cleanup_free_ char *t = NULL; | |
2711 | ||
657ee2d8 | 2712 | t = path_join(*i, *j); |
344ca755 LP |
2713 | if (!t) |
2714 | return -ENOMEM; | |
2715 | ||
f31f10a6 ZJS |
2716 | q = install_changes_add(changes, n_changes, INSTALL_CHANGE_UNLINK, t, NULL); |
2717 | if (q < 0) | |
2718 | return q; | |
344ca755 LP |
2719 | } |
2720 | ||
f31f10a6 ZJS |
2721 | q = install_changes_add(changes, n_changes, INSTALL_CHANGE_UNLINK, *i, NULL); |
2722 | if (q < 0) | |
2723 | return q; | |
344ca755 | 2724 | |
c3e7fba0 | 2725 | rp = skip_root(lp.root_dir, *i); |
344ca755 LP |
2726 | q = mark_symlink_for_removal(&remove_symlinks_to, rp ?: *i); |
2727 | if (q < 0) | |
2728 | return q; | |
2729 | } | |
2730 | ||
c3e7fba0 | 2731 | q = remove_marked_symlinks(remove_symlinks_to, lp.runtime_config, &lp, false, changes, n_changes); |
344ca755 LP |
2732 | if (r >= 0) |
2733 | r = q; | |
2734 | ||
c3e7fba0 | 2735 | q = remove_marked_symlinks(remove_symlinks_to, lp.persistent_config, &lp, false, changes, n_changes); |
344ca755 LP |
2736 | if (r >= 0) |
2737 | r = q; | |
2738 | ||
2739 | return r; | |
2740 | } | |
2741 | ||
0ec0deaa | 2742 | int unit_file_add_dependency( |
4870133b | 2743 | RuntimeScope scope, |
9b69770a | 2744 | UnitFileFlags file_flags, |
0ec0deaa | 2745 | const char *root_dir, |
e9e77e44 | 2746 | char * const *names, |
0ec0deaa LP |
2747 | const char *target, |
2748 | UnitDependency dep, | |
cd44ec5a | 2749 | InstallChange **changes, |
da6053d0 | 2750 | size_t *n_changes) { |
0ec0deaa | 2751 | |
7dfc7139 | 2752 | _cleanup_(lookup_paths_done) LookupPaths lp = {}; |
4a84db4c | 2753 | _cleanup_(install_context_done) InstallContext ctx = { .scope = scope }; |
0047d54d | 2754 | InstallInfo *info, *target_info; |
e1c5c2b0 | 2755 | const char *config_path; |
0ec0deaa LP |
2756 | int r; |
2757 | ||
2758 | assert(scope >= 0); | |
4870133b | 2759 | assert(scope < _RUNTIME_SCOPE_MAX); |
0ec0deaa | 2760 | assert(target); |
81de6962 | 2761 | assert(IN_SET(dep, UNIT_WANTS, UNIT_REQUIRES)); |
0ec0deaa LP |
2762 | |
2763 | if (!unit_name_is_valid(target, UNIT_NAME_ANY)) | |
81de6962 | 2764 | return install_changes_add(changes, n_changes, -EUCLEAN, target, NULL); |
0ec0deaa | 2765 | |
c3e7fba0 | 2766 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
0ec0deaa LP |
2767 | if (r < 0) |
2768 | return r; | |
2769 | ||
c3e7fba0 | 2770 | config_path = (file_flags & UNIT_FILE_RUNTIME) ? lp.runtime_config : lp.persistent_config; |
d0fd66a3 LP |
2771 | if (!config_path) |
2772 | return -ENXIO; | |
0ec0deaa | 2773 | |
4a84db4c | 2774 | r = install_info_discover_and_check(&ctx, &lp, target, SEARCH_FOLLOW_CONFIG_SYMLINKS, |
1e475a0a | 2775 | &target_info, changes, n_changes); |
76adb5b8 LP |
2776 | if (r < 0) |
2777 | return r; | |
0ec0deaa | 2778 | |
91810c8f | 2779 | assert(target_info->install_mode == INSTALL_MODE_REGULAR); |
e94937df | 2780 | |
0f87041f | 2781 | STRV_FOREACH(name, names) { |
0ec0deaa LP |
2782 | char ***l; |
2783 | ||
0f87041f ZJS |
2784 | r = install_info_discover_and_check(&ctx, &lp, *name, |
2785 | SEARCH_FOLLOW_CONFIG_SYMLINKS, | |
4a84db4c | 2786 | &info, changes, n_changes); |
76adb5b8 LP |
2787 | if (r < 0) |
2788 | return r; | |
0ec0deaa | 2789 | |
91810c8f | 2790 | assert(info->install_mode == INSTALL_MODE_REGULAR); |
0ec0deaa LP |
2791 | |
2792 | /* We didn't actually load anything from the unit | |
2793 | * file, but instead just add in our new symlink to | |
2794 | * create. */ | |
e94937df LN |
2795 | |
2796 | if (dep == UNIT_WANTS) | |
4a84db4c | 2797 | l = &info->wanted_by; |
38f90179 | 2798 | else if (dep == UNIT_REQUIRES) |
4a84db4c | 2799 | l = &info->required_by; |
38f90179 MY |
2800 | else |
2801 | l = &info->upheld_by; | |
e94937df | 2802 | |
0ec0deaa | 2803 | strv_free(*l); |
bea1a013 | 2804 | *l = strv_new(target_info->name); |
0ec0deaa LP |
2805 | if (!*l) |
2806 | return -ENOMEM; | |
e94937df LN |
2807 | } |
2808 | ||
4a84db4c | 2809 | return install_context_apply(&ctx, &lp, file_flags, config_path, |
9b69770a | 2810 | SEARCH_FOLLOW_CONFIG_SYMLINKS, changes, n_changes); |
e94937df LN |
2811 | } |
2812 | ||
ec7eaff3 ZJS |
2813 | static int do_unit_file_enable( |
2814 | const LookupPaths *lp, | |
4870133b | 2815 | RuntimeScope scope, |
ec7eaff3 ZJS |
2816 | UnitFileFlags flags, |
2817 | const char *config_path, | |
e9e77e44 | 2818 | char * const *names_or_paths, |
cd44ec5a | 2819 | InstallChange **changes, |
da6053d0 | 2820 | size_t *n_changes) { |
83096483 | 2821 | |
4a84db4c | 2822 | _cleanup_(install_context_done) InstallContext ctx = { .scope = scope }; |
0047d54d | 2823 | InstallInfo *info; |
83096483 LP |
2824 | int r; |
2825 | ||
0f87041f ZJS |
2826 | STRV_FOREACH(name, names_or_paths) { |
2827 | r = install_info_discover_and_check(&ctx, lp, *name, | |
2828 | SEARCH_LOAD | SEARCH_FOLLOW_CONFIG_SYMLINKS, | |
4a84db4c | 2829 | &info, changes, n_changes); |
76adb5b8 LP |
2830 | if (r < 0) |
2831 | return r; | |
0ec0deaa | 2832 | |
91810c8f | 2833 | assert(info->install_mode == INSTALL_MODE_REGULAR); |
83096483 LP |
2834 | } |
2835 | ||
729e3769 | 2836 | /* This will return the number of symlink rules that were |
d25e100b | 2837 | supposed to be created, not the ones actually created. This |
0f87041f | 2838 | is useful to determine whether the passed units had any |
d25e100b | 2839 | installation data at all. */ |
b91a3b02 | 2840 | |
ec7eaff3 | 2841 | return install_context_apply(&ctx, lp, flags, config_path, |
4a84db4c | 2842 | SEARCH_LOAD, changes, n_changes); |
83096483 LP |
2843 | } |
2844 | ||
ec7eaff3 | 2845 | int unit_file_enable( |
4870133b | 2846 | RuntimeScope scope, |
b3796dd8 | 2847 | UnitFileFlags flags, |
83096483 | 2848 | const char *root_dir, |
e9e77e44 | 2849 | char * const *names_or_paths, |
cd44ec5a | 2850 | InstallChange **changes, |
da6053d0 | 2851 | size_t *n_changes) { |
83096483 | 2852 | |
7dfc7139 | 2853 | _cleanup_(lookup_paths_done) LookupPaths lp = {}; |
0ec0deaa | 2854 | int r; |
83096483 LP |
2855 | |
2856 | assert(scope >= 0); | |
4870133b | 2857 | assert(scope < _RUNTIME_SCOPE_MAX); |
83096483 | 2858 | |
c3e7fba0 | 2859 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
83096483 LP |
2860 | if (r < 0) |
2861 | return r; | |
2862 | ||
ec7eaff3 | 2863 | const char *config_path = config_path_from_flags(&lp, flags); |
1830ac51 MB |
2864 | if (!config_path) |
2865 | return -ENXIO; | |
2866 | ||
0f87041f | 2867 | return do_unit_file_enable(&lp, scope, flags, config_path, names_or_paths, changes, n_changes); |
ec7eaff3 ZJS |
2868 | } |
2869 | ||
2870 | static int do_unit_file_disable( | |
2871 | const LookupPaths *lp, | |
4870133b | 2872 | RuntimeScope scope, |
ec7eaff3 ZJS |
2873 | UnitFileFlags flags, |
2874 | const char *config_path, | |
e9e77e44 | 2875 | char * const *names, |
cd44ec5a | 2876 | InstallChange **changes, |
ec7eaff3 ZJS |
2877 | size_t *n_changes) { |
2878 | ||
2879 | _cleanup_(install_context_done) InstallContext ctx = { .scope = scope }; | |
2880 | _cleanup_set_free_free_ Set *remove_symlinks_to = NULL; | |
bf1bea43 | 2881 | bool has_install_info = false; |
ec7eaff3 ZJS |
2882 | int r; |
2883 | ||
0f87041f | 2884 | STRV_FOREACH(name, names) { |
a4d733db MY |
2885 | InstallInfo *info; |
2886 | ||
0f87041f | 2887 | if (!unit_name_is_valid(*name, UNIT_NAME_ANY)) |
81de6962 | 2888 | return install_changes_add(changes, n_changes, -EUCLEAN, *name, NULL); |
0ec0deaa | 2889 | |
bf1bea43 MY |
2890 | r = install_info_add(&ctx, *name, NULL, lp->root_dir, /* auxiliary= */ false, &info); |
2891 | if (r >= 0) | |
2892 | r = install_info_traverse(&ctx, lp, info, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS, NULL); | |
5163c9b1 LB |
2893 | if (r < 0) { |
2894 | r = install_changes_add(changes, n_changes, r, *name, NULL); | |
2895 | /* In case there's no unit, we still want to remove any leftover symlink, even if | |
2896 | * the unit might have been removed already, hence treating ENOENT as non-fatal. */ | |
2897 | if (r != -ENOENT) | |
2898 | return r; | |
2899 | } | |
bf1bea43 MY |
2900 | |
2901 | /* If we enable multiple units, some with install info and others without, | |
2902 | * the "empty [Install] section" warning is not shown. Let's make the behavior | |
2903 | * of disable align with that. */ | |
2904 | has_install_info = has_install_info || install_info_has_rules(info) || install_info_has_also(info); | |
83096483 LP |
2905 | } |
2906 | ||
ec7eaff3 | 2907 | r = install_context_mark_for_removal(&ctx, lp, &remove_symlinks_to, config_path, changes, n_changes); |
bf1bea43 MY |
2908 | if (r >= 0) |
2909 | r = remove_marked_symlinks(remove_symlinks_to, config_path, lp, flags & UNIT_FILE_DRY_RUN, changes, n_changes); | |
0ec0deaa LP |
2910 | if (r < 0) |
2911 | return r; | |
83096483 | 2912 | |
bf1bea43 MY |
2913 | /* The warning is shown only if it's a no-op */ |
2914 | return install_changes_have_modification(*changes, *n_changes) || has_install_info; | |
83096483 LP |
2915 | } |
2916 | ||
ec7eaff3 | 2917 | int unit_file_disable( |
4870133b | 2918 | RuntimeScope scope, |
b3796dd8 | 2919 | UnitFileFlags flags, |
83096483 | 2920 | const char *root_dir, |
e9e77e44 | 2921 | char * const *files, |
cd44ec5a | 2922 | InstallChange **changes, |
da6053d0 | 2923 | size_t *n_changes) { |
0ec0deaa | 2924 | |
7dfc7139 | 2925 | _cleanup_(lookup_paths_done) LookupPaths lp = {}; |
92d430a9 | 2926 | int r; |
ec7eaff3 ZJS |
2927 | |
2928 | assert(scope >= 0); | |
4870133b | 2929 | assert(scope < _RUNTIME_SCOPE_MAX); |
ec7eaff3 ZJS |
2930 | |
2931 | r = lookup_paths_init(&lp, scope, 0, root_dir); | |
2932 | if (r < 0) | |
2933 | return r; | |
2934 | ||
2935 | const char *config_path = config_path_from_flags(&lp, flags); | |
2936 | if (!config_path) | |
2937 | return -ENXIO; | |
2938 | ||
2939 | return do_unit_file_disable(&lp, scope, flags, config_path, files, changes, n_changes); | |
2940 | } | |
2941 | ||
29a7c59a | 2942 | static int normalize_linked_files( |
4870133b | 2943 | RuntimeScope scope, |
29a7c59a | 2944 | const LookupPaths *lp, |
e9e77e44 | 2945 | char * const *names_or_paths, |
29a7c59a ZJS |
2946 | char ***ret_names, |
2947 | char ***ret_files) { | |
2948 | ||
2949 | /* This is similar to normalize_filenames()/normalize_names() in src/systemctl/, | |
30fd9a2d | 2950 | * but operates on real unit names. For each argument we look up the actual path |
8b7378e1 | 2951 | * where the unit is found. This way linked units can be re-enabled successfully. */ |
29a7c59a | 2952 | |
0b6bf4b6 | 2953 | _cleanup_strv_free_ char **files = NULL, **names = NULL; |
29a7c59a ZJS |
2954 | int r; |
2955 | ||
2956 | STRV_FOREACH(a, names_or_paths) { | |
2957 | _cleanup_(install_context_done) InstallContext ctx = { .scope = scope }; | |
0047d54d | 2958 | InstallInfo *i = NULL; |
29a7c59a ZJS |
2959 | _cleanup_free_ char *n = NULL; |
2960 | ||
2961 | r = path_extract_filename(*a, &n); | |
2962 | if (r < 0) | |
2963 | return r; | |
2964 | if (r == O_DIRECTORY) | |
2965 | return log_debug_errno(SYNTHETIC_ERRNO(EISDIR), | |
2966 | "Unexpected path to a directory \"%s\", refusing.", *a); | |
2967 | ||
fe6e0cfa | 2968 | if (!is_path(*a) && !unit_name_is_valid(*a, UNIT_NAME_INSTANCE)) { |
29a7c59a ZJS |
2969 | r = install_info_discover(&ctx, lp, n, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS, &i, NULL, NULL); |
2970 | if (r < 0) | |
2971 | log_debug_errno(r, "Failed to discover unit \"%s\", operating on name: %m", n); | |
2972 | } | |
2973 | ||
2974 | r = strv_consume(&names, TAKE_PTR(n)); | |
2975 | if (r < 0) | |
2976 | return r; | |
2977 | ||
2978 | const char *p = NULL; | |
6e961aeb | 2979 | if (i && i->path && i->root) |
29a7c59a ZJS |
2980 | /* Use startswith here, because we know that paths are normalized, and |
2981 | * path_startswith() would give us a relative path, but we need an absolute path | |
2982 | * relative to i->root. | |
2983 | * | |
2984 | * In other words: /var/tmp/instroot.1234/etc/systemd/system/frobnicator.service | |
2985 | * is replaced by /etc/systemd/system/frobnicator.service, which is "absolute" | |
2986 | * in a sense, but only makes sense "relative" to /var/tmp/instroot.1234/. | |
2987 | */ | |
2988 | p = startswith(i->path, i->root); | |
2989 | ||
2990 | r = strv_extend(&files, p ?: *a); | |
2991 | if (r < 0) | |
2992 | return r; | |
2993 | } | |
2994 | ||
2995 | *ret_names = TAKE_PTR(names); | |
2996 | *ret_files = TAKE_PTR(files); | |
2997 | return 0; | |
2998 | } | |
2999 | ||
ec7eaff3 | 3000 | int unit_file_reenable( |
4870133b | 3001 | RuntimeScope scope, |
ec7eaff3 ZJS |
3002 | UnitFileFlags flags, |
3003 | const char *root_dir, | |
e9e77e44 | 3004 | char * const *names_or_paths, |
cd44ec5a | 3005 | InstallChange **changes, |
ec7eaff3 ZJS |
3006 | size_t *n_changes) { |
3007 | ||
7dfc7139 | 3008 | _cleanup_(lookup_paths_done) LookupPaths lp = {}; |
29a7c59a | 3009 | _cleanup_strv_free_ char **names = NULL, **files = NULL; |
ec7eaff3 ZJS |
3010 | int r; |
3011 | ||
3012 | assert(scope >= 0); | |
4870133b | 3013 | assert(scope < _RUNTIME_SCOPE_MAX); |
ec7eaff3 ZJS |
3014 | |
3015 | r = lookup_paths_init(&lp, scope, 0, root_dir); | |
3016 | if (r < 0) | |
3017 | return r; | |
3018 | ||
3019 | const char *config_path = config_path_from_flags(&lp, flags); | |
3020 | if (!config_path) | |
3021 | return -ENXIO; | |
83096483 | 3022 | |
29a7c59a ZJS |
3023 | r = normalize_linked_files(scope, &lp, names_or_paths, &names, &files); |
3024 | if (r < 0) | |
3025 | return r; | |
0ec0deaa | 3026 | |
29a7c59a | 3027 | /* First, we invoke the disable command with only the basename... */ |
ec7eaff3 | 3028 | r = do_unit_file_disable(&lp, scope, flags, config_path, names, changes, n_changes); |
83096483 | 3029 | if (r < 0) |
d9e5e694 | 3030 | return r; |
83096483 | 3031 | |
0ec0deaa | 3032 | /* But the enable command with the full name */ |
ec7eaff3 | 3033 | return do_unit_file_enable(&lp, scope, flags, config_path, files, changes, n_changes); |
83096483 LP |
3034 | } |
3035 | ||
99504dd4 | 3036 | int unit_file_set_default( |
4870133b | 3037 | RuntimeScope scope, |
b3796dd8 | 3038 | UnitFileFlags flags, |
99504dd4 | 3039 | const char *root_dir, |
0ec0deaa | 3040 | const char *name, |
cd44ec5a | 3041 | InstallChange **changes, |
da6053d0 | 3042 | size_t *n_changes) { |
99504dd4 | 3043 | |
7dfc7139 | 3044 | _cleanup_(lookup_paths_done) LookupPaths lp = {}; |
4a84db4c | 3045 | _cleanup_(install_context_done) InstallContext ctx = { .scope = scope }; |
0047d54d | 3046 | InstallInfo *info; |
60bec8e4 | 3047 | const char *new_path; |
99504dd4 | 3048 | int r; |
99504dd4 VP |
3049 | |
3050 | assert(scope >= 0); | |
4870133b | 3051 | assert(scope < _RUNTIME_SCOPE_MAX); |
0ec0deaa | 3052 | assert(name); |
99504dd4 | 3053 | |
401017e0 | 3054 | if (unit_name_to_type(name) != UNIT_TARGET) /* this also validates the name */ |
0ec0deaa LP |
3055 | return -EINVAL; |
3056 | if (streq(name, SPECIAL_DEFAULT_TARGET)) | |
99504dd4 VP |
3057 | return -EINVAL; |
3058 | ||
c3e7fba0 | 3059 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
99504dd4 VP |
3060 | if (r < 0) |
3061 | return r; | |
3062 | ||
4a84db4c | 3063 | r = install_info_discover_and_check(&ctx, &lp, name, 0, &info, changes, n_changes); |
76adb5b8 LP |
3064 | if (r < 0) |
3065 | return r; | |
99504dd4 | 3066 | |
c3e7fba0 | 3067 | new_path = strjoina(lp.persistent_config, "/" SPECIAL_DEFAULT_TARGET); |
9aa3d6b4 | 3068 | return create_symlink(&lp, info->path, new_path, flags & UNIT_FILE_FORCE, changes, n_changes); |
99504dd4 VP |
3069 | } |
3070 | ||
3071 | int unit_file_get_default( | |
4870133b | 3072 | RuntimeScope scope, |
99504dd4 | 3073 | const char *root_dir, |
454318d3 | 3074 | char **ret) { |
99504dd4 | 3075 | |
7dfc7139 | 3076 | _cleanup_(lookup_paths_done) LookupPaths lp = {}; |
4a84db4c | 3077 | _cleanup_(install_context_done) InstallContext ctx = { .scope = scope }; |
0047d54d | 3078 | InstallInfo *info; |
99504dd4 VP |
3079 | int r; |
3080 | ||
16ed0233 | 3081 | assert(scope >= 0); |
4870133b | 3082 | assert(scope < _RUNTIME_SCOPE_MAX); |
454318d3 | 3083 | assert(ret); |
16ed0233 | 3084 | |
c3e7fba0 | 3085 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
0ec0deaa LP |
3086 | if (r < 0) |
3087 | return r; | |
99504dd4 | 3088 | |
4a84db4c ZJS |
3089 | r = install_info_discover(&ctx, &lp, SPECIAL_DEFAULT_TARGET, SEARCH_FOLLOW_CONFIG_SYMLINKS, |
3090 | &info, NULL, NULL); | |
0ec0deaa LP |
3091 | if (r < 0) |
3092 | return r; | |
99504dd4 | 3093 | |
454318d3 | 3094 | return strdup_to(ret, info->name); |
99504dd4 VP |
3095 | } |
3096 | ||
d6d98276 | 3097 | int unit_file_lookup_state( |
4870133b | 3098 | RuntimeScope scope, |
c3e7fba0 | 3099 | const LookupPaths *lp, |
0ec0deaa LP |
3100 | const char *name, |
3101 | UnitFileState *ret) { | |
83096483 | 3102 | |
4a84db4c | 3103 | _cleanup_(install_context_done) InstallContext ctx = { .scope = scope }; |
0047d54d | 3104 | InstallInfo *info; |
0ec0deaa LP |
3105 | UnitFileState state; |
3106 | int r; | |
83096483 | 3107 | |
c3e7fba0 | 3108 | assert(lp); |
0ec0deaa | 3109 | assert(name); |
83096483 | 3110 | |
7410616c | 3111 | if (!unit_name_is_valid(name, UNIT_NAME_ANY)) |
83096483 LP |
3112 | return -EINVAL; |
3113 | ||
4a84db4c ZJS |
3114 | r = install_info_discover(&ctx, lp, name, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS, |
3115 | &info, NULL, NULL); | |
0ec0deaa | 3116 | if (r < 0) |
3e8d06d9 ZJS |
3117 | return log_debug_errno(r, "Failed to discover unit %s: %m", name); |
3118 | ||
91810c8f | 3119 | assert(IN_SET(info->install_mode, INSTALL_MODE_REGULAR, INSTALL_MODE_MASKED)); |
4a84db4c | 3120 | log_debug("Found unit %s at %s (%s)", name, strna(info->path), |
91810c8f | 3121 | info->install_mode == INSTALL_MODE_REGULAR ? "regular file" : "mask"); |
83096483 | 3122 | |
0ec0deaa LP |
3123 | /* Shortcut things, if the caller just wants to know if this unit exists. */ |
3124 | if (!ret) | |
3125 | return 0; | |
83096483 | 3126 | |
91810c8f | 3127 | switch (info->install_mode) { |
67820a0c | 3128 | |
318031fd | 3129 | case INSTALL_MODE_MASKED: |
4a84db4c | 3130 | r = path_is_runtime(lp, info->path, true); |
385eb996 LP |
3131 | if (r < 0) |
3132 | return r; | |
3133 | ||
3134 | state = r > 0 ? UNIT_FILE_MASKED_RUNTIME : UNIT_FILE_MASKED; | |
0ec0deaa | 3135 | break; |
83096483 | 3136 | |
318031fd | 3137 | case INSTALL_MODE_REGULAR: |
15d7ab87 | 3138 | /* Check if the name we were querying is actually an alias */ |
3e02c8d8 | 3139 | if (!path_equal_filename(name, info->path) && !unit_name_is_valid(info->name, UNIT_NAME_INSTANCE)) { |
15d7ab87 ZJS |
3140 | state = UNIT_FILE_ALIAS; |
3141 | break; | |
3142 | } | |
3143 | ||
4a84db4c | 3144 | r = path_is_generator(lp, info->path); |
f4139308 LP |
3145 | if (r < 0) |
3146 | return r; | |
3147 | if (r > 0) { | |
3148 | state = UNIT_FILE_GENERATED; | |
3149 | break; | |
3150 | } | |
3151 | ||
4a84db4c | 3152 | r = path_is_transient(lp, info->path); |
e4fca67f LP |
3153 | if (r < 0) |
3154 | return r; | |
3155 | if (r > 0) { | |
3156 | state = UNIT_FILE_TRANSIENT; | |
3157 | break; | |
3158 | } | |
3159 | ||
5cd8ae31 ZJS |
3160 | /* Check if any of the Alias= symlinks have been created. |
3161 | * We ignore other aliases, and only check those that would | |
3162 | * be created by systemctl enable for this unit. */ | |
4a84db4c | 3163 | r = find_symlinks_in_scope(scope, lp, info, true, &state); |
d9b4b48f ZJS |
3164 | if (r < 0) |
3165 | return r; | |
3166 | if (r > 0) | |
3167 | break; | |
3168 | ||
3169 | /* Check if the file is known under other names. If it is, | |
3170 | * it might be in use. Report that as UNIT_FILE_INDIRECT. */ | |
4a84db4c | 3171 | r = find_symlinks_in_scope(scope, lp, info, false, &state); |
d9e5e694 ZJS |
3172 | if (r < 0) |
3173 | return r; | |
d9b4b48f ZJS |
3174 | if (r > 0) |
3175 | state = UNIT_FILE_INDIRECT; | |
3176 | else { | |
0047d54d | 3177 | if (install_info_has_rules(info)) |
0ec0deaa | 3178 | state = UNIT_FILE_DISABLED; |
0047d54d | 3179 | else if (install_info_has_also(info)) |
0ec0deaa LP |
3180 | state = UNIT_FILE_INDIRECT; |
3181 | else | |
3182 | state = UNIT_FILE_STATIC; | |
3183 | } | |
83096483 | 3184 | |
0ec0deaa LP |
3185 | break; |
3186 | ||
3187 | default: | |
04499a70 | 3188 | assert_not_reached(); |
83096483 LP |
3189 | } |
3190 | ||
0ec0deaa LP |
3191 | *ret = state; |
3192 | return 0; | |
83096483 LP |
3193 | } |
3194 | ||
0ec0deaa | 3195 | int unit_file_get_state( |
4870133b | 3196 | RuntimeScope scope, |
a8ffe6fb | 3197 | const char *root_dir, |
0ec0deaa LP |
3198 | const char *name, |
3199 | UnitFileState *ret) { | |
a8ffe6fb | 3200 | |
7dfc7139 | 3201 | _cleanup_(lookup_paths_done) LookupPaths lp = {}; |
a8ffe6fb ZJS |
3202 | int r; |
3203 | ||
3204 | assert(scope >= 0); | |
4870133b | 3205 | assert(scope < _RUNTIME_SCOPE_MAX); |
a8ffe6fb ZJS |
3206 | assert(name); |
3207 | ||
c3e7fba0 | 3208 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
a8ffe6fb ZJS |
3209 | if (r < 0) |
3210 | return r; | |
3211 | ||
c3e7fba0 | 3212 | return unit_file_lookup_state(scope, &lp, name, ret); |
a8ffe6fb ZJS |
3213 | } |
3214 | ||
e09c255d LP |
3215 | int unit_file_exists_full(RuntimeScope scope, const LookupPaths *lp, const char *name, char **ret_path) { |
3216 | _cleanup_(install_context_done) InstallContext c = { | |
3217 | .scope = scope, | |
3218 | }; | |
e735decc LP |
3219 | int r; |
3220 | ||
c3e7fba0 | 3221 | assert(lp); |
e735decc LP |
3222 | assert(name); |
3223 | ||
3224 | if (!unit_name_is_valid(name, UNIT_NAME_ANY)) | |
3225 | return -EINVAL; | |
3226 | ||
e09c255d LP |
3227 | InstallInfo *info = NULL; |
3228 | r = install_info_discover( | |
3229 | &c, | |
3230 | lp, | |
3231 | name, | |
3232 | /* flags= */ 0, | |
3233 | ret_path ? &info : NULL, | |
3234 | /* changes= */ NULL, | |
3235 | /* n_changes= */ NULL); | |
3236 | if (r == -ENOENT) { | |
3237 | if (ret_path) | |
3238 | *ret_path = NULL; | |
e735decc | 3239 | return 0; |
e09c255d | 3240 | } |
e735decc LP |
3241 | if (r < 0) |
3242 | return r; | |
3243 | ||
e09c255d LP |
3244 | if (ret_path) { |
3245 | assert(info); | |
3246 | ||
4f77ddca ZJS |
3247 | r = strdup_to(ret_path, info->path); |
3248 | if (r < 0) | |
3249 | return r; | |
e09c255d LP |
3250 | } |
3251 | ||
e735decc LP |
3252 | return 1; |
3253 | } | |
3254 | ||
4c9565ee RB |
3255 | static int split_pattern_into_name_and_instances(const char *pattern, char **out_unit_name, char ***out_instances) { |
3256 | _cleanup_strv_free_ char **instances = NULL; | |
3257 | _cleanup_free_ char *unit_name = NULL; | |
3258 | int r; | |
3259 | ||
3260 | assert(pattern); | |
3261 | assert(out_instances); | |
3262 | assert(out_unit_name); | |
3263 | ||
82bd4da7 | 3264 | r = extract_first_word(&pattern, &unit_name, NULL, EXTRACT_RETAIN_ESCAPE); |
4c9565ee RB |
3265 | if (r < 0) |
3266 | return r; | |
3267 | ||
3268 | /* We handle the instances logic when unit name is extracted */ | |
3269 | if (pattern) { | |
3270 | /* We only create instances when a rule of templated unit | |
3271 | * is seen. A rule like enable foo@.service a b c will | |
3272 | * result in an array of (a, b, c) as instance names */ | |
3273 | if (!unit_name_is_valid(unit_name, UNIT_NAME_TEMPLATE)) | |
3274 | return -EINVAL; | |
3275 | ||
3276 | instances = strv_split(pattern, WHITESPACE); | |
3277 | if (!instances) | |
3278 | return -ENOMEM; | |
3279 | ||
3280 | *out_instances = TAKE_PTR(instances); | |
3281 | } | |
3282 | ||
3283 | *out_unit_name = TAKE_PTR(unit_name); | |
3284 | ||
3285 | return 0; | |
3286 | } | |
3287 | ||
4870133b | 3288 | static int presets_find_config(RuntimeScope scope, const char *root_dir, char ***files) { |
76d75d8b ZJS |
3289 | static const char* const system_dirs[] = { CONF_PATHS("systemd/system-preset"), NULL }; |
3290 | static const char* const user_dirs[] = { CONF_PATHS("systemd/user-preset"), NULL }; | |
f7767d76 | 3291 | const char* const* dirs; |
83096483 LP |
3292 | |
3293 | assert(scope >= 0); | |
4870133b | 3294 | assert(scope < _RUNTIME_SCOPE_MAX); |
0ec0deaa | 3295 | |
4870133b | 3296 | if (scope == RUNTIME_SCOPE_SYSTEM) |
10fd1d46 | 3297 | dirs = system_dirs; |
4870133b | 3298 | else if (IN_SET(scope, RUNTIME_SCOPE_GLOBAL, RUNTIME_SCOPE_USER)) |
10fd1d46 | 3299 | dirs = user_dirs; |
a05294ff | 3300 | else |
04499a70 | 3301 | assert_not_reached(); |
83096483 | 3302 | |
f7767d76 | 3303 | return conf_files_list_strv(files, ".preset", root_dir, 0, dirs); |
e0b8a238 ZJS |
3304 | } |
3305 | ||
4870133b | 3306 | static int read_presets(RuntimeScope scope, const char *root_dir, UnitFilePresets *presets) { |
05cdf6a7 | 3307 | _cleanup_(unit_file_presets_done) UnitFilePresets ps = {}; |
e0b8a238 | 3308 | _cleanup_strv_free_ char **files = NULL; |
e0b8a238 ZJS |
3309 | int r; |
3310 | ||
3311 | assert(scope >= 0); | |
4870133b | 3312 | assert(scope < _RUNTIME_SCOPE_MAX); |
e0b8a238 ZJS |
3313 | assert(presets); |
3314 | ||
3315 | r = presets_find_config(scope, root_dir, &files); | |
83096483 LP |
3316 | if (r < 0) |
3317 | return r; | |
3318 | ||
cba2ef02 | 3319 | STRV_FOREACH(p, files) { |
c2b2df60 | 3320 | _cleanup_fclose_ FILE *f = NULL; |
d544d1a4 | 3321 | int n = 0; |
83096483 | 3322 | |
cba2ef02 | 3323 | f = fopen(*p, "re"); |
83096483 LP |
3324 | if (!f) { |
3325 | if (errno == ENOENT) | |
3326 | continue; | |
3327 | ||
d9e5e694 | 3328 | return -errno; |
83096483 LP |
3329 | } |
3330 | ||
bef77f37 LP |
3331 | for (;;) { |
3332 | _cleanup_free_ char *line = NULL; | |
52c788e6 | 3333 | _cleanup_(unit_file_preset_rule_done) UnitFilePresetRule rule = {}; |
0ec0deaa | 3334 | const char *parameter; |
83096483 | 3335 | |
0ff6ff2b | 3336 | r = read_stripped_line(f, LONG_LINE_MAX, &line); |
bef77f37 LP |
3337 | if (r < 0) |
3338 | return r; | |
3339 | if (r == 0) | |
3340 | break; | |
3341 | ||
d544d1a4 | 3342 | n++; |
83096483 | 3343 | |
0ff6ff2b | 3344 | if (isempty(line)) |
0ec0deaa | 3345 | continue; |
0ff6ff2b | 3346 | if (strchr(COMMENTS, line[0])) |
83096483 LP |
3347 | continue; |
3348 | ||
0ff6ff2b | 3349 | parameter = first_word(line, "enable"); |
0ec0deaa | 3350 | if (parameter) { |
4c9565ee RB |
3351 | char *unit_name; |
3352 | char **instances = NULL; | |
d9e5e694 | 3353 | |
4c9565ee RB |
3354 | /* Unit_name will remain the same as parameter when no instances are specified */ |
3355 | r = split_pattern_into_name_and_instances(parameter, &unit_name, &instances); | |
3356 | if (r < 0) { | |
8ac3c9ab | 3357 | log_syntax(NULL, LOG_WARNING, *p, n, r, "Couldn't parse line '%s'. Ignoring.", line); |
4c9565ee RB |
3358 | continue; |
3359 | } | |
8965d9f8 | 3360 | |
8f7b2566 | 3361 | rule = (UnitFilePresetRule) { |
4c9565ee | 3362 | .pattern = unit_name, |
8965d9f8 | 3363 | .action = PRESET_ENABLE, |
4c9565ee | 3364 | .instances = instances, |
8965d9f8 | 3365 | }; |
0ec0deaa | 3366 | } |
83096483 | 3367 | |
0ff6ff2b | 3368 | parameter = first_word(line, "disable"); |
0ec0deaa | 3369 | if (parameter) { |
8965d9f8 | 3370 | char *pattern; |
d9e5e694 | 3371 | |
8965d9f8 AC |
3372 | pattern = strdup(parameter); |
3373 | if (!pattern) | |
3374 | return -ENOMEM; | |
3375 | ||
8f7b2566 | 3376 | rule = (UnitFilePresetRule) { |
8965d9f8 AC |
3377 | .pattern = pattern, |
3378 | .action = PRESET_DISABLE, | |
3379 | }; | |
3380 | } | |
3381 | ||
0ff6ff2b | 3382 | parameter = first_word(line, "ignore"); |
e77e07f6 DDM |
3383 | if (parameter) { |
3384 | char *pattern; | |
3385 | ||
3386 | pattern = strdup(parameter); | |
3387 | if (!pattern) | |
3388 | return -ENOMEM; | |
3389 | ||
3390 | rule = (UnitFilePresetRule) { | |
3391 | .pattern = pattern, | |
3392 | .action = PRESET_IGNORE, | |
3393 | }; | |
3394 | } | |
3395 | ||
8965d9f8 | 3396 | if (rule.action) { |
319a4f4b | 3397 | if (!GREEDY_REALLOC(ps.rules, ps.n_rules + 1)) |
8965d9f8 AC |
3398 | return -ENOMEM; |
3399 | ||
52c788e6 | 3400 | ps.rules[ps.n_rules++] = TAKE_STRUCT(rule); |
0ec0deaa LP |
3401 | continue; |
3402 | } | |
3403 | ||
d544d1a4 | 3404 | log_syntax(NULL, LOG_WARNING, *p, n, 0, "Couldn't parse line '%s'. Ignoring.", line); |
83096483 | 3405 | } |
83096483 LP |
3406 | } |
3407 | ||
8f7b2566 | 3408 | ps.initialized = true; |
088d71f8 | 3409 | *presets = TAKE_STRUCT(ps); |
8965d9f8 AC |
3410 | |
3411 | return 0; | |
3412 | } | |
3413 | ||
4c9565ee | 3414 | static int pattern_match_multiple_instances( |
8f7b2566 | 3415 | const UnitFilePresetRule rule, |
4c9565ee RB |
3416 | const char *unit_name, |
3417 | char ***ret) { | |
3418 | ||
3419 | _cleanup_free_ char *templated_name = NULL; | |
3420 | int r; | |
3421 | ||
521a7c9b MY |
3422 | assert(unit_name); |
3423 | ||
4c9565ee | 3424 | /* If no ret is needed or the rule itself does not have instances |
5238e957 | 3425 | * initialized, we return not matching */ |
4c9565ee RB |
3426 | if (!ret || !rule.instances) |
3427 | return 0; | |
3428 | ||
3429 | r = unit_name_template(unit_name, &templated_name); | |
3430 | if (r < 0) | |
3431 | return r; | |
3432 | if (!streq(rule.pattern, templated_name)) | |
3433 | return 0; | |
3434 | ||
3435 | /* Compose a list of specified instances when unit name is a template */ | |
3436 | if (unit_name_is_valid(unit_name, UNIT_NAME_TEMPLATE)) { | |
4c9565ee | 3437 | _cleanup_strv_free_ char **out_strv = NULL; |
4c9565ee RB |
3438 | |
3439 | STRV_FOREACH(iter, rule.instances) { | |
3440 | _cleanup_free_ char *name = NULL; | |
47ab95fe ZJS |
3441 | |
3442 | r = unit_name_replace_instance(unit_name, *iter, &name); | |
4c9565ee RB |
3443 | if (r < 0) |
3444 | return r; | |
47ab95fe ZJS |
3445 | |
3446 | r = strv_consume(&out_strv, TAKE_PTR(name)); | |
4c9565ee RB |
3447 | if (r < 0) |
3448 | return r; | |
3449 | } | |
3450 | ||
3451 | *ret = TAKE_PTR(out_strv); | |
3452 | return 1; | |
3453 | } else { | |
3454 | /* We now know the input unit name is an instance name */ | |
3455 | _cleanup_free_ char *instance_name = NULL; | |
3456 | ||
3457 | r = unit_name_to_instance(unit_name, &instance_name); | |
3458 | if (r < 0) | |
3459 | return r; | |
3460 | ||
3461 | if (strv_find(rule.instances, instance_name)) | |
3462 | return 1; | |
3463 | } | |
3464 | return 0; | |
3465 | } | |
3466 | ||
8f7b2566 | 3467 | static int query_presets(const char *name, const UnitFilePresets *presets, char ***instance_name_list) { |
8965d9f8 | 3468 | PresetAction action = PRESET_UNKNOWN; |
de8be28e | 3469 | |
521a7c9b MY |
3470 | assert(name); |
3471 | assert(presets); | |
3472 | ||
8965d9f8 AC |
3473 | if (!unit_name_is_valid(name, UNIT_NAME_ANY)) |
3474 | return -EINVAL; | |
3475 | ||
521a7c9b MY |
3476 | FOREACH_ARRAY(i, presets->rules, presets->n_rules) |
3477 | if (pattern_match_multiple_instances(*i, name, instance_name_list) > 0 || | |
3478 | fnmatch(i->pattern, name, FNM_NOESCAPE) == 0) { | |
3479 | action = i->action; | |
8965d9f8 AC |
3480 | break; |
3481 | } | |
3482 | ||
3483 | switch (action) { | |
521a7c9b | 3484 | |
8965d9f8 AC |
3485 | case PRESET_UNKNOWN: |
3486 | log_debug("Preset files don't specify rule for %s. Enabling.", name); | |
e77e07f6 | 3487 | return PRESET_ENABLE; |
521a7c9b | 3488 | |
8965d9f8 | 3489 | case PRESET_ENABLE: |
de010b0b | 3490 | if (instance_name_list && *instance_name_list) |
4c9565ee RB |
3491 | STRV_FOREACH(s, *instance_name_list) |
3492 | log_debug("Preset files say enable %s.", *s); | |
de010b0b | 3493 | else |
4c9565ee | 3494 | log_debug("Preset files say enable %s.", name); |
e77e07f6 | 3495 | return PRESET_ENABLE; |
521a7c9b | 3496 | |
8965d9f8 AC |
3497 | case PRESET_DISABLE: |
3498 | log_debug("Preset files say disable %s.", name); | |
e77e07f6 | 3499 | return PRESET_DISABLE; |
521a7c9b | 3500 | |
e77e07f6 DDM |
3501 | case PRESET_IGNORE: |
3502 | log_debug("Preset files say ignore %s.", name); | |
3503 | return PRESET_IGNORE; | |
521a7c9b | 3504 | |
8965d9f8 | 3505 | default: |
04499a70 | 3506 | assert_not_reached(); |
8965d9f8 AC |
3507 | } |
3508 | } | |
3509 | ||
e77e07f6 | 3510 | PresetAction unit_file_query_preset(RuntimeScope scope, const char *root_dir, const char *name, UnitFilePresets *cached) { |
05cdf6a7 | 3511 | _cleanup_(unit_file_presets_done) UnitFilePresets tmp = {}; |
8965d9f8 AC |
3512 | int r; |
3513 | ||
8f7b2566 ZJS |
3514 | if (!cached) |
3515 | cached = &tmp; | |
3516 | if (!cached->initialized) { | |
3517 | r = read_presets(scope, root_dir, cached); | |
3518 | if (r < 0) | |
3519 | return r; | |
3520 | } | |
8965d9f8 | 3521 | |
8f7b2566 | 3522 | return query_presets(name, cached, NULL); |
83096483 LP |
3523 | } |
3524 | ||
0ec0deaa | 3525 | static int execute_preset( |
9b69770a | 3526 | UnitFileFlags file_flags, |
0ec0deaa LP |
3527 | InstallContext *plus, |
3528 | InstallContext *minus, | |
c3e7fba0 | 3529 | const LookupPaths *lp, |
1830ac51 | 3530 | const char *config_path, |
e9e77e44 | 3531 | char * const *files, |
0ec0deaa | 3532 | UnitFilePresetMode mode, |
cd44ec5a | 3533 | InstallChange **changes, |
da6053d0 | 3534 | size_t *n_changes) { |
0ec0deaa | 3535 | |
1830ac51 | 3536 | int r; |
0ec0deaa LP |
3537 | |
3538 | assert(plus); | |
3539 | assert(minus); | |
c3e7fba0 | 3540 | assert(lp); |
1830ac51 | 3541 | assert(config_path); |
0ec0deaa LP |
3542 | |
3543 | if (mode != UNIT_FILE_PRESET_ENABLE_ONLY) { | |
3544 | _cleanup_set_free_free_ Set *remove_symlinks_to = NULL; | |
3545 | ||
4a84db4c | 3546 | r = install_context_mark_for_removal(minus, lp, &remove_symlinks_to, config_path, changes, n_changes); |
1830ac51 MB |
3547 | if (r < 0) |
3548 | return r; | |
0ec0deaa | 3549 | |
c3e7fba0 | 3550 | r = remove_marked_symlinks(remove_symlinks_to, config_path, lp, false, changes, n_changes); |
1830ac51 MB |
3551 | } else |
3552 | r = 0; | |
0ec0deaa LP |
3553 | |
3554 | if (mode != UNIT_FILE_PRESET_DISABLE_ONLY) { | |
1830ac51 MB |
3555 | int q; |
3556 | ||
0ec0deaa | 3557 | /* Returns number of symlinks that where supposed to be installed. */ |
4a84db4c | 3558 | q = install_context_apply(plus, lp, |
ad5fdd39 | 3559 | file_flags | UNIT_FILE_IGNORE_AUXILIARY_FAILURE, |
4a84db4c ZJS |
3560 | config_path, |
3561 | SEARCH_LOAD, changes, n_changes); | |
1830ac51 MB |
3562 | if (r >= 0) { |
3563 | if (q < 0) | |
3564 | r = q; | |
3565 | else | |
3566 | r += q; | |
3567 | } | |
0ec0deaa LP |
3568 | } |
3569 | ||
3570 | return r; | |
3571 | } | |
3572 | ||
3573 | static int preset_prepare_one( | |
4870133b | 3574 | RuntimeScope scope, |
0ec0deaa LP |
3575 | InstallContext *plus, |
3576 | InstallContext *minus, | |
c3e7fba0 | 3577 | LookupPaths *lp, |
af3d8113 | 3578 | const char *name, |
8f7b2566 | 3579 | const UnitFilePresets *presets, |
cd44ec5a | 3580 | InstallChange **changes, |
da6053d0 | 3581 | size_t *n_changes) { |
0ec0deaa | 3582 | |
4a84db4c | 3583 | _cleanup_(install_context_done) InstallContext tmp = { .scope = scope }; |
4c9565ee | 3584 | _cleanup_strv_free_ char **instance_name_list = NULL; |
0047d54d | 3585 | InstallInfo *info; |
0ec0deaa LP |
3586 | int r; |
3587 | ||
11e11fd5 | 3588 | if (install_info_find(plus, name) || install_info_find(minus, name)) |
0ec0deaa LP |
3589 | return 0; |
3590 | ||
4a84db4c ZJS |
3591 | r = install_info_discover(&tmp, lp, name, SEARCH_FOLLOW_CONFIG_SYMLINKS, |
3592 | &info, changes, n_changes); | |
11e11fd5 ZJS |
3593 | if (r < 0) |
3594 | return r; | |
4a84db4c ZJS |
3595 | if (!streq(name, info->name)) { |
3596 | log_debug("Skipping %s because it is an alias for %s.", name, info->name); | |
11e11fd5 ZJS |
3597 | return 0; |
3598 | } | |
3599 | ||
4c9565ee | 3600 | r = query_presets(name, presets, &instance_name_list); |
0ec0deaa LP |
3601 | if (r < 0) |
3602 | return r; | |
3603 | ||
e77e07f6 | 3604 | if (r == PRESET_ENABLE) { |
de010b0b | 3605 | if (instance_name_list) |
4c9565ee | 3606 | STRV_FOREACH(s, instance_name_list) { |
4a84db4c ZJS |
3607 | r = install_info_discover_and_check(plus, lp, *s, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS, |
3608 | &info, changes, n_changes); | |
4c9565ee RB |
3609 | if (r < 0) |
3610 | return r; | |
3611 | } | |
de010b0b | 3612 | else { |
4a84db4c ZJS |
3613 | r = install_info_discover_and_check(plus, lp, name, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS, |
3614 | &info, changes, n_changes); | |
4c9565ee RB |
3615 | if (r < 0) |
3616 | return r; | |
3617 | } | |
0ec0deaa | 3618 | |
e77e07f6 | 3619 | } else if (r == PRESET_DISABLE) |
4a84db4c ZJS |
3620 | r = install_info_discover(minus, lp, name, SEARCH_FOLLOW_CONFIG_SYMLINKS, |
3621 | &info, changes, n_changes); | |
0ec0deaa LP |
3622 | |
3623 | return r; | |
3624 | } | |
3625 | ||
83096483 | 3626 | int unit_file_preset( |
4870133b | 3627 | RuntimeScope scope, |
9b69770a | 3628 | UnitFileFlags file_flags, |
83096483 | 3629 | const char *root_dir, |
e9e77e44 | 3630 | char * const *names, |
d309c1c3 | 3631 | UnitFilePresetMode mode, |
cd44ec5a | 3632 | InstallChange **changes, |
da6053d0 | 3633 | size_t *n_changes) { |
83096483 | 3634 | |
59ccf93d | 3635 | _cleanup_(install_context_done) InstallContext plus = {}, minus = {}; |
7dfc7139 | 3636 | _cleanup_(lookup_paths_done) LookupPaths lp = {}; |
05cdf6a7 | 3637 | _cleanup_(unit_file_presets_done) UnitFilePresets presets = {}; |
1830ac51 | 3638 | const char *config_path; |
0ec0deaa | 3639 | int r; |
83096483 LP |
3640 | |
3641 | assert(scope >= 0); | |
4870133b | 3642 | assert(scope < _RUNTIME_SCOPE_MAX); |
b364c4de | 3643 | assert(mode < _UNIT_FILE_PRESET_MODE_MAX); |
83096483 | 3644 | |
c3e7fba0 | 3645 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
83096483 LP |
3646 | if (r < 0) |
3647 | return r; | |
3648 | ||
c3e7fba0 | 3649 | config_path = (file_flags & UNIT_FILE_RUNTIME) ? lp.runtime_config : lp.persistent_config; |
1830ac51 MB |
3650 | if (!config_path) |
3651 | return -ENXIO; | |
3652 | ||
8965d9f8 AC |
3653 | r = read_presets(scope, root_dir, &presets); |
3654 | if (r < 0) | |
3655 | return r; | |
83096483 | 3656 | |
0f87041f ZJS |
3657 | STRV_FOREACH(name, names) { |
3658 | r = preset_prepare_one(scope, &plus, &minus, &lp, *name, &presets, changes, n_changes); | |
83096483 | 3659 | if (r < 0) |
d9e5e694 | 3660 | return r; |
83096483 LP |
3661 | } |
3662 | ||
0f87041f | 3663 | return execute_preset(file_flags, &plus, &minus, &lp, config_path, names, mode, changes, n_changes); |
d309c1c3 LP |
3664 | } |
3665 | ||
3666 | int unit_file_preset_all( | |
4870133b | 3667 | RuntimeScope scope, |
9b69770a | 3668 | UnitFileFlags file_flags, |
d309c1c3 LP |
3669 | const char *root_dir, |
3670 | UnitFilePresetMode mode, | |
cd44ec5a | 3671 | InstallChange **changes, |
da6053d0 | 3672 | size_t *n_changes) { |
d309c1c3 | 3673 | |
59ccf93d | 3674 | _cleanup_(install_context_done) InstallContext plus = {}, minus = {}; |
7dfc7139 | 3675 | _cleanup_(lookup_paths_done) LookupPaths lp = {}; |
05cdf6a7 | 3676 | _cleanup_(unit_file_presets_done) UnitFilePresets presets = {}; |
1830ac51 | 3677 | const char *config_path = NULL; |
0ec0deaa | 3678 | int r; |
d309c1c3 LP |
3679 | |
3680 | assert(scope >= 0); | |
4870133b | 3681 | assert(scope < _RUNTIME_SCOPE_MAX); |
b364c4de | 3682 | assert(mode < _UNIT_FILE_PRESET_MODE_MAX); |
d309c1c3 | 3683 | |
c3e7fba0 | 3684 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
d309c1c3 LP |
3685 | if (r < 0) |
3686 | return r; | |
3687 | ||
c3e7fba0 | 3688 | config_path = (file_flags & UNIT_FILE_RUNTIME) ? lp.runtime_config : lp.persistent_config; |
1830ac51 MB |
3689 | if (!config_path) |
3690 | return -ENXIO; | |
3691 | ||
8965d9f8 AC |
3692 | r = read_presets(scope, root_dir, &presets); |
3693 | if (r < 0) | |
3694 | return r; | |
3695 | ||
a4f0e0da | 3696 | r = 0; |
c3e7fba0 | 3697 | STRV_FOREACH(i, lp.search_path) { |
d309c1c3 | 3698 | _cleanup_closedir_ DIR *d = NULL; |
d309c1c3 | 3699 | |
401017e0 | 3700 | d = opendir(*i); |
d309c1c3 | 3701 | if (!d) { |
a4f0e0da ZJS |
3702 | if (errno != ENOENT) |
3703 | RET_GATHER(r, -errno); | |
3704 | continue; | |
d309c1c3 LP |
3705 | } |
3706 | ||
a4f0e0da ZJS |
3707 | FOREACH_DIRENT(de, d, RET_GATHER(r, -errno)) { |
3708 | int k; | |
1830ac51 | 3709 | |
7410616c | 3710 | if (!unit_name_is_valid(de->d_name, UNIT_NAME_ANY)) |
d309c1c3 LP |
3711 | continue; |
3712 | ||
0ec0deaa | 3713 | if (!IN_SET(de->d_type, DT_LNK, DT_REG)) |
d309c1c3 LP |
3714 | continue; |
3715 | ||
a4f0e0da ZJS |
3716 | k = preset_prepare_one(scope, &plus, &minus, &lp, de->d_name, &presets, changes, n_changes); |
3717 | if (k < 0 && | |
3718 | !IN_SET(k, -EEXIST, | |
3719 | -ERFKILL, | |
3720 | -EADDRNOTAVAIL, | |
3721 | -ETXTBSY, | |
3722 | -EBADSLT, | |
3723 | -EIDRM, | |
3724 | -EUCLEAN, | |
3725 | -ELOOP, | |
3726 | -EXDEV, | |
3727 | -ENOENT, | |
3728 | -ENOLINK, | |
3729 | -EUNATCH)) | |
4a203a51 | 3730 | /* Ignore generated/transient/missing/invalid units when applying preset, propagate other errors. |
a4f0e0da ZJS |
3731 | * Coordinate with install_change_dump_error() above. */ |
3732 | RET_GATHER(r, k); | |
d309c1c3 LP |
3733 | } |
3734 | } | |
3735 | ||
4a84db4c | 3736 | return execute_preset(file_flags, &plus, &minus, &lp, config_path, NULL, mode, changes, n_changes); |
83096483 LP |
3737 | } |
3738 | ||
27681563 | 3739 | static UnitFileList* unit_file_list_free(UnitFileList *f) { |
59ccf93d | 3740 | if (!f) |
75db809a | 3741 | return NULL; |
d9e5e694 | 3742 | |
59ccf93d | 3743 | free(f->path); |
75db809a | 3744 | return mfree(f); |
d9e5e694 | 3745 | } |
59ccf93d | 3746 | |
27681563 | 3747 | DEFINE_TRIVIAL_CLEANUP_FUNC(UnitFileList*, unit_file_list_free); |
d9e5e694 | 3748 | |
ca3c95c1 MY |
3749 | DEFINE_PRIVATE_HASH_OPS_FULL(unit_file_list_hash_ops_free_free, |
3750 | char, string_hash_func, string_compare_func, free, | |
3751 | UnitFileList, unit_file_list_free); | |
c92899fd | 3752 | |
83096483 | 3753 | int unit_file_get_list( |
4870133b | 3754 | RuntimeScope scope, |
83096483 | 3755 | const char *root_dir, |
ca3c95c1 MY |
3756 | char * const *states, |
3757 | char * const *patterns, | |
3758 | Hashmap **ret) { | |
83096483 | 3759 | |
7dfc7139 | 3760 | _cleanup_(lookup_paths_done) LookupPaths lp = {}; |
ca3c95c1 | 3761 | _cleanup_hashmap_free_ Hashmap *h = NULL; |
83096483 LP |
3762 | int r; |
3763 | ||
3764 | assert(scope >= 0); | |
4870133b | 3765 | assert(scope < _RUNTIME_SCOPE_MAX); |
ca3c95c1 | 3766 | assert(ret); |
83096483 | 3767 | |
c3e7fba0 | 3768 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
83096483 LP |
3769 | if (r < 0) |
3770 | return r; | |
3771 | ||
c3e7fba0 | 3772 | STRV_FOREACH(dirname, lp.search_path) { |
da39f6a6 | 3773 | _cleanup_closedir_ DIR *d = NULL; |
83096483 | 3774 | |
9c894b85 | 3775 | d = opendir(*dirname); |
83096483 LP |
3776 | if (!d) { |
3777 | if (errno == ENOENT) | |
3778 | continue; | |
a1feacf7 | 3779 | if (IN_SET(errno, ENOTDIR, EACCES)) { |
9c894b85 | 3780 | log_debug_errno(errno, "Failed to open \"%s\": %m", *dirname); |
a1feacf7 ZJS |
3781 | continue; |
3782 | } | |
83096483 | 3783 | |
d9e5e694 | 3784 | return -errno; |
83096483 LP |
3785 | } |
3786 | ||
d25e100b | 3787 | FOREACH_DIRENT(de, d, return -errno) { |
ca3c95c1 MY |
3788 | if (!IN_SET(de->d_type, DT_LNK, DT_REG)) |
3789 | continue; | |
3790 | ||
3791 | if (hashmap_contains(h, de->d_name)) | |
3792 | continue; | |
83096483 | 3793 | |
7410616c | 3794 | if (!unit_name_is_valid(de->d_name, UNIT_NAME_ANY)) |
83096483 LP |
3795 | continue; |
3796 | ||
313fe66f | 3797 | if (!strv_fnmatch_or_empty(patterns, de->d_name, FNM_NOESCAPE)) |
3798 | continue; | |
3799 | ||
ca3c95c1 | 3800 | UnitFileState state; |
83096483 | 3801 | |
ca3c95c1 MY |
3802 | r = unit_file_lookup_state(scope, &lp, de->d_name, &state); |
3803 | if (r < 0) | |
3804 | state = UNIT_FILE_BAD; | |
3805 | ||
3806 | if (!strv_isempty(states) && | |
3807 | !strv_contains(states, unit_file_state_to_string(state))) | |
83096483 LP |
3808 | continue; |
3809 | ||
ca3c95c1 | 3810 | _cleanup_(unit_file_list_freep) UnitFileList *f = new(UnitFileList, 1); |
d9e5e694 ZJS |
3811 | if (!f) |
3812 | return -ENOMEM; | |
83096483 | 3813 | |
ca3c95c1 MY |
3814 | *f = (UnitFileList) { |
3815 | .path = path_make_absolute(de->d_name, *dirname), | |
3816 | .state = state, | |
3817 | }; | |
d9e5e694 ZJS |
3818 | if (!f->path) |
3819 | return -ENOMEM; | |
83096483 | 3820 | |
ca3c95c1 MY |
3821 | _cleanup_free_ char *unit_name = strdup(de->d_name); |
3822 | if (!unit_name) | |
3823 | return -ENOMEM; | |
313fe66f | 3824 | |
ca3c95c1 | 3825 | r = hashmap_ensure_put(&h, &unit_file_list_hash_ops_free_free, unit_name, f); |
d9e5e694 ZJS |
3826 | if (r < 0) |
3827 | return r; | |
ca3c95c1 | 3828 | assert(r > 0); |
0ec0deaa | 3829 | |
ca3c95c1 MY |
3830 | TAKE_PTR(unit_name); |
3831 | TAKE_PTR(f); | |
83096483 LP |
3832 | } |
3833 | } | |
3834 | ||
ca3c95c1 | 3835 | *ret = TAKE_PTR(h); |
77cd2c87 | 3836 | return 0; |
83096483 LP |
3837 | } |
3838 | ||
3839 | static const char* const unit_file_state_table[_UNIT_FILE_STATE_MAX] = { | |
babccf14 | 3840 | [UNIT_FILE_ENABLED] = "enabled", |
771faa9a | 3841 | [UNIT_FILE_ENABLED_RUNTIME] = "enabled-runtime", |
babccf14 ZJS |
3842 | [UNIT_FILE_LINKED] = "linked", |
3843 | [UNIT_FILE_LINKED_RUNTIME] = "linked-runtime", | |
15d7ab87 | 3844 | [UNIT_FILE_ALIAS] = "alias", |
babccf14 ZJS |
3845 | [UNIT_FILE_MASKED] = "masked", |
3846 | [UNIT_FILE_MASKED_RUNTIME] = "masked-runtime", | |
3847 | [UNIT_FILE_STATIC] = "static", | |
3848 | [UNIT_FILE_DISABLED] = "disabled", | |
3849 | [UNIT_FILE_INDIRECT] = "indirect", | |
3850 | [UNIT_FILE_GENERATED] = "generated", | |
3851 | [UNIT_FILE_TRANSIENT] = "transient", | |
3852 | [UNIT_FILE_BAD] = "bad", | |
83096483 LP |
3853 | }; |
3854 | ||
3855 | DEFINE_STRING_TABLE_LOOKUP(unit_file_state, UnitFileState); | |
c0576cd6 | 3856 | |
f8662fee | 3857 | static const char* const install_change_type_table[_INSTALL_CHANGE_TYPE_MAX] = { |
1308f72e ZJS |
3858 | [INSTALL_CHANGE_SYMLINK] = "symlink", |
3859 | [INSTALL_CHANGE_UNLINK] = "unlink", | |
3860 | [INSTALL_CHANGE_IS_MASKED] = "masked", | |
bf3b0d5f | 3861 | [INSTALL_CHANGE_IS_MASKED_GENERATOR] = "masked by generator", |
1308f72e ZJS |
3862 | [INSTALL_CHANGE_IS_DANGLING] = "dangling", |
3863 | [INSTALL_CHANGE_DESTINATION_NOT_PRESENT] = "destination not present", | |
3864 | [INSTALL_CHANGE_AUXILIARY_FAILED] = "auxiliary unit failed", | |
c0576cd6 LP |
3865 | }; |
3866 | ||
f8662fee | 3867 | DEFINE_STRING_TABLE_LOOKUP(install_change_type, InstallChangeType); |
d309c1c3 | 3868 | |
b364c4de | 3869 | static const char* const unit_file_preset_mode_table[_UNIT_FILE_PRESET_MODE_MAX] = { |
babccf14 ZJS |
3870 | [UNIT_FILE_PRESET_FULL] = "full", |
3871 | [UNIT_FILE_PRESET_ENABLE_ONLY] = "enable-only", | |
d309c1c3 LP |
3872 | [UNIT_FILE_PRESET_DISABLE_ONLY] = "disable-only", |
3873 | }; | |
3874 | ||
3875 | DEFINE_STRING_TABLE_LOOKUP(unit_file_preset_mode, UnitFilePresetMode); |