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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" |
f461a28d | 13 | #include "chase.h" |
07630cea LP |
14 | #include "conf-files.h" |
15 | #include "conf-parser.h" | |
28db6fbf | 16 | #include "constants.h" |
a0956174 | 17 | #include "dirent-util.h" |
93419a96 | 18 | #include "errno-list.h" |
a8fbdf54 | 19 | #include "extract-word.h" |
a0956174 | 20 | #include "fd-util.h" |
0ec0deaa | 21 | #include "fileio.h" |
f4f15635 | 22 | #include "fs-util.h" |
83096483 | 23 | #include "hashmap.h" |
07630cea | 24 | #include "install-printf.h" |
a0956174 | 25 | #include "install.h" |
a760db24 | 26 | #include "locale-util.h" |
a8fbdf54 TA |
27 | #include "log.h" |
28 | #include "macro.h" | |
35cd0ba5 | 29 | #include "mkdir-label.h" |
83096483 | 30 | #include "path-lookup.h" |
07630cea | 31 | #include "path-util.h" |
344ca755 | 32 | #include "rm-rf.h" |
07630cea LP |
33 | #include "set.h" |
34 | #include "special.h" | |
8fcde012 | 35 | #include "stat-util.h" |
8b43440b | 36 | #include "string-table.h" |
07630cea | 37 | #include "string-util.h" |
83096483 | 38 | #include "strv.h" |
5cfa33e0 | 39 | #include "unit-file.h" |
83096483 | 40 | |
0ec0deaa LP |
41 | #define UNIT_FILE_FOLLOW_SYMLINK_MAX 64 |
42 | ||
43 | typedef enum SearchFlags { | |
ef31828d LP |
44 | SEARCH_LOAD = 1 << 0, |
45 | SEARCH_FOLLOW_CONFIG_SYMLINKS = 1 << 1, | |
46 | SEARCH_DROPIN = 1 << 2, | |
0ec0deaa LP |
47 | } SearchFlags; |
48 | ||
83096483 | 49 | typedef struct { |
4870133b | 50 | RuntimeScope scope; |
0ec0deaa LP |
51 | OrderedHashmap *will_process; |
52 | OrderedHashmap *have_processed; | |
83096483 LP |
53 | } InstallContext; |
54 | ||
8f7b2566 | 55 | struct UnitFilePresetRule { |
8965d9f8 AC |
56 | char *pattern; |
57 | PresetAction action; | |
4c9565ee | 58 | char **instances; |
8f7b2566 | 59 | }; |
8965d9f8 | 60 | |
e77e07f6 DDM |
61 | /* NB! strings use past tense. */ |
62 | static const char *const preset_action_past_tense_table[_PRESET_ACTION_MAX] = { | |
63 | [PRESET_UNKNOWN] = "unknown", | |
64 | [PRESET_ENABLE] = "enabled", | |
65 | [PRESET_DISABLE] = "disabled", | |
66 | [PRESET_IGNORE] = "ignored", | |
67 | }; | |
68 | ||
69 | DEFINE_STRING_TABLE_LOOKUP_TO_STRING(preset_action_past_tense, PresetAction); | |
70 | ||
0047d54d | 71 | static bool install_info_has_rules(const InstallInfo *i) { |
7a7ec2bf ZJS |
72 | assert(i); |
73 | ||
74 | return !strv_isempty(i->aliases) || | |
75 | !strv_isempty(i->wanted_by) || | |
38f90179 MY |
76 | !strv_isempty(i->required_by) || |
77 | !strv_isempty(i->upheld_by); | |
7a7ec2bf ZJS |
78 | } |
79 | ||
0047d54d | 80 | static bool install_info_has_also(const InstallInfo *i) { |
7a7ec2bf ZJS |
81 | assert(i); |
82 | ||
83 | return !strv_isempty(i->also); | |
84 | } | |
85 | ||
52c788e6 DT |
86 | static void unit_file_preset_rule_done(UnitFilePresetRule *rule) { |
87 | assert(rule); | |
88 | ||
89 | free(rule->pattern); | |
90 | strv_free(rule->instances); | |
91 | } | |
92 | ||
05cdf6a7 | 93 | void unit_file_presets_done(UnitFilePresets *p) { |
8965d9f8 AC |
94 | if (!p) |
95 | return; | |
96 | ||
f52477d6 DT |
97 | FOREACH_ARRAY(rule, p->rules, p->n_rules) |
98 | unit_file_preset_rule_done(rule); | |
8965d9f8 AC |
99 | |
100 | free(p->rules); | |
101 | p->n_rules = 0; | |
102 | } | |
103 | ||
318031fd ZJS |
104 | static const char *const install_mode_table[_INSTALL_MODE_MAX] = { |
105 | [INSTALL_MODE_REGULAR] = "regular", | |
106 | [INSTALL_MODE_LINKED] = "linked", | |
107 | [INSTALL_MODE_ALIAS] = "alias", | |
108 | [INSTALL_MODE_MASKED] = "masked", | |
64f9280e ZJS |
109 | }; |
110 | ||
318031fd | 111 | DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(install_mode, InstallMode); |
64f9280e | 112 | |
c3e7fba0 | 113 | static int in_search_path(const LookupPaths *lp, const char *path) { |
8f294b45 | 114 | _cleanup_free_ char *parent = NULL; |
45519d13 | 115 | int r; |
8f294b45 | 116 | |
a6f318a5 | 117 | /* Check if 'path' is in lp->search_path. */ |
8f294b45 | 118 | |
a6f318a5 | 119 | r = path_extract_directory(ASSERT_PTR(path), &parent); |
45519d13 LP |
120 | if (r < 0) |
121 | return r; | |
8f294b45 | 122 | |
a6f318a5 ZJS |
123 | return path_strv_contains(ASSERT_PTR(lp)->search_path, parent); |
124 | } | |
125 | ||
126 | static int underneath_search_path(const LookupPaths *lp, const char *path) { | |
127 | /* Check if 'path' is underneath lp->search_path. */ | |
128 | ||
129 | return !!path_startswith_strv(ASSERT_PTR(path), ASSERT_PTR(lp)->search_path); | |
8f294b45 LP |
130 | } |
131 | ||
c3e7fba0 | 132 | static const char* skip_root(const char *root_dir, const char *path) { |
8f9364f9 | 133 | assert(path); |
401017e0 | 134 | |
c3e7fba0 | 135 | if (!root_dir) |
8f9364f9 | 136 | return path; |
401017e0 | 137 | |
c3e7fba0 | 138 | const char *e = path_startswith(path, root_dir); |
8f9364f9 LP |
139 | if (!e) |
140 | return NULL; | |
141 | ||
142 | /* Make sure the returned path starts with a slash */ | |
143 | if (e[0] != '/') { | |
144 | if (e == path || e[-1] != '/') | |
145 | return NULL; | |
401017e0 | 146 | |
8f9364f9 | 147 | e--; |
401017e0 LP |
148 | } |
149 | ||
8f9364f9 | 150 | return e; |
401017e0 LP |
151 | } |
152 | ||
c3e7fba0 | 153 | static int path_is_generator(const LookupPaths *lp, const char *path) { |
f4139308 | 154 | _cleanup_free_ char *parent = NULL; |
45519d13 | 155 | int r; |
f4139308 | 156 | |
c3e7fba0 | 157 | assert(lp); |
f4139308 LP |
158 | assert(path); |
159 | ||
45519d13 LP |
160 | r = path_extract_directory(path, &parent); |
161 | if (r < 0) | |
162 | return r; | |
f4139308 | 163 | |
c3e7fba0 ZJS |
164 | return path_equal_ptr(parent, lp->generator) || |
165 | path_equal_ptr(parent, lp->generator_early) || | |
166 | path_equal_ptr(parent, lp->generator_late); | |
f4139308 LP |
167 | } |
168 | ||
c3e7fba0 | 169 | static int path_is_transient(const LookupPaths *lp, const char *path) { |
e4fca67f | 170 | _cleanup_free_ char *parent = NULL; |
45519d13 | 171 | int r; |
e4fca67f | 172 | |
c3e7fba0 | 173 | assert(lp); |
e4fca67f LP |
174 | assert(path); |
175 | ||
45519d13 LP |
176 | r = path_extract_directory(path, &parent); |
177 | if (r < 0) | |
178 | return r; | |
e4fca67f | 179 | |
c3e7fba0 | 180 | return path_equal_ptr(parent, lp->transient); |
e4fca67f LP |
181 | } |
182 | ||
c3e7fba0 | 183 | static int path_is_control(const LookupPaths *lp, const char *path) { |
e1c5c2b0 | 184 | _cleanup_free_ char *parent = NULL; |
45519d13 | 185 | int r; |
0ec0deaa | 186 | |
c3e7fba0 | 187 | assert(lp); |
0ec0deaa LP |
188 | assert(path); |
189 | ||
45519d13 LP |
190 | r = path_extract_directory(path, &parent); |
191 | if (r < 0) | |
192 | return r; | |
0ec0deaa | 193 | |
c3e7fba0 ZJS |
194 | return path_equal_ptr(parent, lp->persistent_control) || |
195 | path_equal_ptr(parent, lp->runtime_control); | |
344ca755 LP |
196 | } |
197 | ||
c3e7fba0 | 198 | static int path_is_config(const LookupPaths *lp, const char *path, bool check_parent) { |
344ca755 | 199 | _cleanup_free_ char *parent = NULL; |
45519d13 | 200 | int r; |
344ca755 | 201 | |
c3e7fba0 | 202 | assert(lp); |
344ca755 LP |
203 | assert(path); |
204 | ||
d7604756 ZJS |
205 | /* Note that we do *not* have generic checks for /etc or /run in place, since with |
206 | * them we couldn't discern configuration from transient or generated units */ | |
0ec0deaa | 207 | |
dfead90d | 208 | if (check_parent) { |
45519d13 LP |
209 | r = path_extract_directory(path, &parent); |
210 | if (r < 0) | |
211 | return r; | |
dfead90d LP |
212 | |
213 | path = parent; | |
214 | } | |
0ec0deaa | 215 | |
c3e7fba0 ZJS |
216 | return path_equal_ptr(path, lp->persistent_config) || |
217 | path_equal_ptr(path, lp->runtime_config); | |
0ec0deaa LP |
218 | } |
219 | ||
c3e7fba0 | 220 | static int path_is_runtime(const LookupPaths *lp, const char *path, bool check_parent) { |
385eb996 | 221 | _cleanup_free_ char *parent = NULL; |
401017e0 | 222 | const char *rpath; |
45519d13 | 223 | int r; |
385eb996 | 224 | |
c3e7fba0 | 225 | assert(lp); |
385eb996 LP |
226 | assert(path); |
227 | ||
d7604756 ZJS |
228 | /* Everything in /run is considered runtime. On top of that we also add |
229 | * explicit checks for the various runtime directories, as safety net. */ | |
344ca755 | 230 | |
c3e7fba0 | 231 | rpath = skip_root(lp->root_dir, path); |
401017e0 | 232 | if (rpath && path_startswith(rpath, "/run")) |
385eb996 LP |
233 | return true; |
234 | ||
dfead90d | 235 | if (check_parent) { |
45519d13 LP |
236 | r = path_extract_directory(path, &parent); |
237 | if (r < 0) | |
238 | return r; | |
385eb996 | 239 | |
dfead90d LP |
240 | path = parent; |
241 | } | |
242 | ||
c3e7fba0 ZJS |
243 | return path_equal_ptr(path, lp->runtime_config) || |
244 | path_equal_ptr(path, lp->generator) || | |
245 | path_equal_ptr(path, lp->generator_early) || | |
246 | path_equal_ptr(path, lp->generator_late) || | |
247 | path_equal_ptr(path, lp->transient) || | |
248 | path_equal_ptr(path, lp->runtime_control); | |
344ca755 LP |
249 | } |
250 | ||
c3e7fba0 | 251 | static int path_is_vendor_or_generator(const LookupPaths *lp, const char *path) { |
344ca755 LP |
252 | const char *rpath; |
253 | ||
c3e7fba0 | 254 | assert(lp); |
344ca755 LP |
255 | assert(path); |
256 | ||
c3e7fba0 | 257 | rpath = skip_root(lp->root_dir, path); |
344ca755 LP |
258 | if (!rpath) |
259 | return 0; | |
260 | ||
261 | if (path_startswith(rpath, "/usr")) | |
262 | return true; | |
263 | ||
349cc4a5 | 264 | #if HAVE_SPLIT_USR |
344ca755 LP |
265 | if (path_startswith(rpath, "/lib")) |
266 | return true; | |
267 | #endif | |
268 | ||
c3e7fba0 | 269 | if (path_is_generator(lp, rpath)) |
efdbf5fe JC |
270 | return true; |
271 | ||
835cf75a | 272 | return path_equal(rpath, SYSTEM_DATA_UNIT_DIR); |
385eb996 LP |
273 | } |
274 | ||
c3e7fba0 ZJS |
275 | static const char* config_path_from_flags(const LookupPaths *lp, UnitFileFlags flags) { |
276 | assert(lp); | |
83654007 LB |
277 | |
278 | if (FLAGS_SET(flags, UNIT_FILE_PORTABLE)) | |
c3e7fba0 | 279 | return FLAGS_SET(flags, UNIT_FILE_RUNTIME) ? lp->runtime_attached : lp->persistent_attached; |
83654007 | 280 | else |
c3e7fba0 | 281 | return FLAGS_SET(flags, UNIT_FILE_RUNTIME) ? lp->runtime_config : lp->persistent_config; |
83654007 LB |
282 | } |
283 | ||
94e7298d | 284 | InstallChangeType install_changes_add( |
cd44ec5a | 285 | InstallChange **changes, |
da6053d0 | 286 | size_t *n_changes, |
f8662fee | 287 | InstallChangeType type, /* INSTALL_CHANGE_SYMLINK, _UNLINK, _IS_MASKED, _IS_DANGLING, … if positive or errno if negative */ |
0ec0deaa LP |
288 | const char *path, |
289 | const char *source) { | |
290 | ||
12bf0ae4 | 291 | _cleanup_free_ char *p = NULL, *s = NULL; |
cd44ec5a | 292 | InstallChange *c; |
0ec0deaa | 293 | |
0ec0deaa | 294 | assert(!changes == !n_changes); |
f8662fee | 295 | assert(INSTALL_CHANGE_TYPE_VALID(type)); |
93419a96 | 296 | |
4a4af850 ZJS |
297 | /* Message formatting requires <path> to be set. */ |
298 | assert(path); | |
299 | ||
94e7298d ZJS |
300 | /* Register a change or error. Note that the return value may be the error |
301 | * that was passed in, or -ENOMEM generated internally. */ | |
302 | ||
0ec0deaa | 303 | if (!changes) |
94e7298d | 304 | return type; |
0ec0deaa | 305 | |
cd44ec5a | 306 | c = reallocarray(*changes, *n_changes + 1, sizeof(InstallChange)); |
0ec0deaa LP |
307 | if (!c) |
308 | return -ENOMEM; | |
0ec0deaa | 309 | *changes = c; |
0ec0deaa | 310 | |
3aa96361 ZJS |
311 | if (path) { |
312 | p = strdup(path); | |
313 | if (!p) | |
314 | return -ENOMEM; | |
0ec0deaa | 315 | |
3aa96361 ZJS |
316 | path_simplify(p); |
317 | } | |
93419a96 LP |
318 | |
319 | if (source) { | |
320 | s = strdup(source); | |
321 | if (!s) | |
322 | return -ENOMEM; | |
323 | ||
4ff361cc | 324 | path_simplify(s); |
93419a96 LP |
325 | } |
326 | ||
cd44ec5a | 327 | c[(*n_changes)++] = (InstallChange) { |
f8662fee | 328 | .type = type, |
93419a96 LP |
329 | .path = TAKE_PTR(p), |
330 | .source = TAKE_PTR(s), | |
331 | }; | |
0ec0deaa | 332 | |
94e7298d | 333 | return type; |
0ec0deaa LP |
334 | } |
335 | ||
cd44ec5a | 336 | void install_changes_free(InstallChange *changes, size_t n_changes) { |
0ec0deaa LP |
337 | assert(changes || n_changes == 0); |
338 | ||
de8be28e | 339 | for (size_t i = 0; i < n_changes; i++) { |
0ec0deaa LP |
340 | free(changes[i].path); |
341 | free(changes[i].source); | |
342 | } | |
343 | ||
344 | free(changes); | |
345 | } | |
346 | ||
cd44ec5a | 347 | void install_changes_dump(int r, const char *verb, const InstallChange *changes, size_t n_changes, bool quiet) { |
32450f53 | 348 | int err = 0; |
af3d8113 ZJS |
349 | |
350 | assert(changes || n_changes == 0); | |
351 | /* If verb is not specified, errors are not allowed! */ | |
352 | assert(verb || r >= 0); | |
353 | ||
de8be28e | 354 | for (size_t i = 0; i < n_changes; i++) { |
8f5d716a ZJS |
355 | if (changes[i].type < 0) |
356 | assert(verb); | |
4a4af850 | 357 | assert(changes[i].path); |
af3d8113 | 358 | |
5ad58fea ZJS |
359 | /* When making changes here, make sure to also change install_error() in dbus-manager.c. */ |
360 | ||
f8662fee | 361 | switch (changes[i].type) { |
1308f72e | 362 | case INSTALL_CHANGE_SYMLINK: |
af3d8113 | 363 | if (!quiet) |
a760db24 ZJS |
364 | log_info("Created symlink %s %s %s.", |
365 | changes[i].path, | |
fc03e80c | 366 | special_glyph(SPECIAL_GLYPH_ARROW_RIGHT), |
a760db24 | 367 | changes[i].source); |
af3d8113 | 368 | break; |
1308f72e | 369 | case INSTALL_CHANGE_UNLINK: |
af3d8113 | 370 | if (!quiet) |
e75a26d0 | 371 | log_info("Removed \"%s\".", changes[i].path); |
af3d8113 | 372 | break; |
1308f72e | 373 | case INSTALL_CHANGE_IS_MASKED: |
af3d8113 ZJS |
374 | if (!quiet) |
375 | log_info("Unit %s is masked, ignoring.", changes[i].path); | |
376 | break; | |
bf3b0d5f ZJS |
377 | case INSTALL_CHANGE_IS_MASKED_GENERATOR: |
378 | if (!quiet) | |
379 | log_info("Unit %s is masked via a generator and cannot be unmasked.", | |
380 | changes[i].path); | |
381 | break; | |
1308f72e | 382 | case INSTALL_CHANGE_IS_DANGLING: |
893275df ZJS |
383 | if (!quiet) |
384 | log_info("Unit %s is an alias to a unit that is not present, ignoring.", | |
385 | changes[i].path); | |
386 | break; | |
1308f72e | 387 | case INSTALL_CHANGE_DESTINATION_NOT_PRESENT: |
8ae27441 JS |
388 | if (!quiet) |
389 | log_warning("Unit %s is added as a dependency to a non-existent unit %s.", | |
390 | changes[i].source, changes[i].path); | |
391 | break; | |
1308f72e | 392 | case INSTALL_CHANGE_AUXILIARY_FAILED: |
3aa96361 | 393 | if (!quiet) |
4a4af850 | 394 | log_warning("Failed to enable auxiliary unit %s, ignoring.", changes[i].path); |
3aa96361 | 395 | break; |
af3d8113 ZJS |
396 | case -EEXIST: |
397 | if (changes[i].source) | |
f8662fee | 398 | err = log_error_errno(changes[i].type, |
32450f53 ZJS |
399 | "Failed to %s unit, file \"%s\" already exists and is a symlink to \"%s\".", |
400 | verb, changes[i].path, changes[i].source); | |
af3d8113 | 401 | else |
f8662fee | 402 | err = log_error_errno(changes[i].type, |
32450f53 ZJS |
403 | "Failed to %s unit, file \"%s\" already exists.", |
404 | verb, changes[i].path); | |
af3d8113 ZJS |
405 | break; |
406 | case -ERFKILL: | |
f8662fee | 407 | err = log_error_errno(changes[i].type, "Failed to %s unit, unit %s is masked.", |
32450f53 | 408 | verb, changes[i].path); |
af3d8113 ZJS |
409 | break; |
410 | case -EADDRNOTAVAIL: | |
f8662fee | 411 | err = log_error_errno(changes[i].type, "Failed to %s unit, unit %s is transient or generated.", |
32450f53 | 412 | verb, changes[i].path); |
af3d8113 | 413 | break; |
a6f318a5 ZJS |
414 | case -ETXTBSY: |
415 | err = log_error_errno(changes[i].type, "Failed to %s unit, file %s is under the systemd unit hierarchy already.", | |
416 | verb, changes[i].path); | |
417 | break; | |
19b9d5d0 | 418 | case -EBADSLT: |
f8662fee | 419 | err = log_error_errno(changes[i].type, "Failed to %s unit, invalid specifier in \"%s\".", |
32450f53 | 420 | verb, changes[i].path); |
19b9d5d0 | 421 | break; |
b0ec372a | 422 | case -EIDRM: |
f8662fee | 423 | err = log_error_errno(changes[i].type, "Failed to %s %s, destination unit %s is a non-template unit.", |
32450f53 | 424 | verb, changes[i].source, changes[i].path); |
b0ec372a | 425 | break; |
d7ceaf72 | 426 | case -EUCLEAN: |
f8662fee | 427 | err = log_error_errno(changes[i].type, |
32450f53 ZJS |
428 | "Failed to %s unit, \"%s\" is not a valid unit name.", |
429 | verb, changes[i].path); | |
d7ceaf72 | 430 | break; |
af3d8113 | 431 | case -ELOOP: |
f8662fee | 432 | err = log_error_errno(changes[i].type, "Failed to %s unit, refusing to operate on linked unit file %s.", |
32450f53 | 433 | verb, changes[i].path); |
af3d8113 | 434 | break; |
cbfdbffb ZJS |
435 | case -EXDEV: |
436 | if (changes[i].source) | |
f8662fee | 437 | err = log_error_errno(changes[i].type, "Failed to %s unit, cannot alias %s as %s.", |
cbfdbffb ZJS |
438 | verb, changes[i].source, changes[i].path); |
439 | else | |
f8662fee | 440 | err = log_error_errno(changes[i].type, "Failed to %s unit, invalid unit reference \"%s\".", |
cbfdbffb ZJS |
441 | verb, changes[i].path); |
442 | break; | |
637d6e5b | 443 | case -ENOENT: |
f8662fee | 444 | err = log_error_errno(changes[i].type, "Failed to %s unit, unit %s does not exist.", |
32450f53 | 445 | verb, changes[i].path); |
637d6e5b | 446 | break; |
6ec4c852 | 447 | case -EUNATCH: |
f8662fee | 448 | err = log_error_errno(changes[i].type, "Failed to %s unit, cannot resolve specifiers in \"%s\".", |
32450f53 | 449 | verb, changes[i].path); |
6ec4c852 | 450 | break; |
af3d8113 | 451 | default: |
f8662fee LP |
452 | assert(changes[i].type < 0); |
453 | err = log_error_errno(changes[i].type, "Failed to %s unit, file \"%s\": %m", | |
32450f53 | 454 | verb, changes[i].path); |
af3d8113 ZJS |
455 | } |
456 | } | |
457 | ||
32450f53 | 458 | if (r < 0 && err >= 0) |
af3d8113 ZJS |
459 | log_error_errno(r, "Failed to %s: %m.", verb); |
460 | } | |
461 | ||
25ea9277 | 462 | /** |
3fc53351 ZJS |
463 | * Checks if two symlink targets (starting from src) are equivalent as far as the unit enablement logic is |
464 | * concerned. If the target is in the unit search path, then anything with the same name is equivalent. | |
465 | * If outside the unit search path, paths must be identical. | |
25ea9277 | 466 | */ |
3fc53351 ZJS |
467 | static int chroot_unit_symlinks_equivalent( |
468 | const LookupPaths *lp, | |
469 | const char *src, | |
470 | const char *target_a, | |
471 | const char *target_b) { | |
472 | ||
473 | assert(lp); | |
474 | assert(src); | |
475 | assert(target_a); | |
476 | assert(target_b); | |
25ea9277 ZJS |
477 | |
478 | /* This will give incorrect results if the paths are relative and go outside | |
479 | * of the chroot. False negatives are possible. */ | |
480 | ||
3fc53351 ZJS |
481 | const char *root = lp->root_dir ?: "/"; |
482 | _cleanup_free_ char *dirname = NULL; | |
483 | int r; | |
484 | ||
485 | if (!path_is_absolute(target_a) || !path_is_absolute(target_b)) { | |
486 | r = path_extract_directory(src, &dirname); | |
487 | if (r < 0) | |
488 | return r; | |
489 | } | |
490 | ||
491 | _cleanup_free_ char *a = path_join(path_is_absolute(target_a) ? root : dirname, target_a); | |
492 | _cleanup_free_ char *b = path_join(path_is_absolute(target_b) ? root : dirname, target_b); | |
493 | if (!a || !b) | |
494 | return log_oom(); | |
ae9efab7 | 495 | |
3fc53351 ZJS |
496 | r = path_equal_or_files_same(a, b, 0); |
497 | if (r != 0) | |
498 | return r; | |
499 | ||
500 | _cleanup_free_ char *a_name = NULL, *b_name = NULL; | |
501 | r = path_extract_filename(a, &a_name); | |
502 | if (r < 0) | |
503 | return r; | |
504 | r = path_extract_filename(b, &b_name); | |
505 | if (r < 0) | |
506 | return r; | |
507 | ||
508 | return streq(a_name, b_name) && | |
509 | path_startswith_strv(a, lp->search_path) && | |
510 | path_startswith_strv(b, lp->search_path); | |
25ea9277 ZJS |
511 | } |
512 | ||
0ec0deaa | 513 | static int create_symlink( |
c3e7fba0 | 514 | const LookupPaths *lp, |
0ec0deaa LP |
515 | const char *old_path, |
516 | const char *new_path, | |
517 | bool force, | |
cd44ec5a | 518 | InstallChange **changes, |
da6053d0 | 519 | size_t *n_changes) { |
0ec0deaa | 520 | |
3fc53351 | 521 | _cleanup_free_ char *dest = NULL; |
60bec8e4 | 522 | const char *rp; |
0ec0deaa LP |
523 | int r; |
524 | ||
525 | assert(old_path); | |
526 | assert(new_path); | |
527 | ||
c3e7fba0 | 528 | rp = skip_root(lp->root_dir, old_path); |
60bec8e4 ZJS |
529 | if (rp) |
530 | old_path = rp; | |
531 | ||
4f5c2485 ZJS |
532 | /* Actually create a symlink, and remember that we did. This function is |
533 | * smart enough to check if there's already a valid symlink in place. | |
85158303 | 534 | * |
4f5c2485 ZJS |
535 | * Returns 1 if a symlink was created or already exists and points to the |
536 | * right place, or negative on error. | |
85158303 | 537 | */ |
0ec0deaa | 538 | |
35cd0ba5 | 539 | (void) mkdir_parents_label(new_path, 0755); |
0ec0deaa LP |
540 | |
541 | if (symlink(old_path, new_path) >= 0) { | |
f31f10a6 ZJS |
542 | r = install_changes_add(changes, n_changes, INSTALL_CHANGE_SYMLINK, new_path, old_path); |
543 | if (r < 0) | |
544 | return r; | |
3de15214 | 545 | return 1; |
0ec0deaa LP |
546 | } |
547 | ||
94e7298d ZJS |
548 | if (errno != EEXIST) |
549 | return install_changes_add(changes, n_changes, -errno, new_path, NULL); | |
0ec0deaa LP |
550 | |
551 | r = readlink_malloc(new_path, &dest); | |
7d782f26 ZJS |
552 | if (r < 0) { |
553 | /* translate EINVAL (non-symlink exists) to EEXIST */ | |
554 | if (r == -EINVAL) | |
555 | r = -EEXIST; | |
556 | ||
94e7298d | 557 | return install_changes_add(changes, n_changes, r, new_path, NULL); |
7d782f26 | 558 | } |
0ec0deaa | 559 | |
3fc53351 | 560 | if (chroot_unit_symlinks_equivalent(lp, new_path, dest, old_path)) { |
e2341b6b DT |
561 | log_debug("Symlink %s %s %s already exists", |
562 | new_path, special_glyph(SPECIAL_GLYPH_ARROW_RIGHT), dest); | |
85158303 | 563 | return 1; |
3e8d06d9 | 564 | } |
0ec0deaa | 565 | |
94e7298d ZJS |
566 | if (!force) |
567 | return install_changes_add(changes, n_changes, -EEXIST, new_path, dest); | |
0ec0deaa LP |
568 | |
569 | r = symlink_atomic(old_path, new_path); | |
94e7298d ZJS |
570 | if (r < 0) |
571 | return install_changes_add(changes, n_changes, r, new_path, NULL); | |
0ec0deaa | 572 | |
f31f10a6 ZJS |
573 | r = install_changes_add(changes, n_changes, INSTALL_CHANGE_UNLINK, new_path, NULL); |
574 | if (r < 0) | |
575 | return r; | |
576 | r = install_changes_add(changes, n_changes, INSTALL_CHANGE_SYMLINK, new_path, old_path); | |
577 | if (r < 0) | |
578 | return r; | |
0ec0deaa | 579 | |
3de15214 | 580 | return 1; |
0ec0deaa LP |
581 | } |
582 | ||
83096483 LP |
583 | static int mark_symlink_for_removal( |
584 | Set **remove_symlinks_to, | |
585 | const char *p) { | |
586 | ||
587 | char *n; | |
588 | int r; | |
589 | ||
590 | assert(p); | |
591 | ||
548f6937 | 592 | r = set_ensure_allocated(remove_symlinks_to, &path_hash_ops); |
83096483 LP |
593 | if (r < 0) |
594 | return r; | |
595 | ||
596 | n = strdup(p); | |
597 | if (!n) | |
598 | return -ENOMEM; | |
599 | ||
4ff361cc | 600 | path_simplify(n); |
83096483 | 601 | |
ef42202a | 602 | r = set_consume(*remove_symlinks_to, n); |
d25e100b LP |
603 | if (r == -EEXIST) |
604 | return 0; | |
ef42202a | 605 | if (r < 0) |
d25e100b | 606 | return r; |
83096483 | 607 | |
0ec0deaa | 608 | return 1; |
83096483 LP |
609 | } |
610 | ||
611 | static int remove_marked_symlinks_fd( | |
612 | Set *remove_symlinks_to, | |
613 | int fd, | |
614 | const char *path, | |
615 | const char *config_path, | |
401017e0 | 616 | const LookupPaths *lp, |
3b3557c4 | 617 | bool dry_run, |
0ec0deaa | 618 | bool *restart, |
cd44ec5a | 619 | InstallChange **changes, |
da6053d0 | 620 | size_t *n_changes) { |
83096483 | 621 | |
7fd1b19b | 622 | _cleanup_closedir_ DIR *d = NULL; |
bcafe923 | 623 | int r = 0; |
83096483 LP |
624 | |
625 | assert(remove_symlinks_to); | |
626 | assert(fd >= 0); | |
627 | assert(path); | |
628 | assert(config_path); | |
401017e0 | 629 | assert(lp); |
0ec0deaa | 630 | assert(restart); |
83096483 LP |
631 | |
632 | d = fdopendir(fd); | |
633 | if (!d) { | |
03e334a1 | 634 | safe_close(fd); |
83096483 LP |
635 | return -errno; |
636 | } | |
637 | ||
638 | rewinddir(d); | |
639 | ||
06693181 | 640 | FOREACH_DIRENT(de, d, return -errno) |
83096483 | 641 | |
83096483 | 642 | if (de->d_type == DT_DIR) { |
7fd1b19b | 643 | _cleanup_free_ char *p = NULL; |
d25e100b | 644 | int nfd, q; |
83096483 LP |
645 | |
646 | nfd = openat(fd, de->d_name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW); | |
647 | if (nfd < 0) { | |
648 | if (errno == ENOENT) | |
649 | continue; | |
650 | ||
651 | if (r == 0) | |
652 | r = -errno; | |
653 | continue; | |
654 | } | |
655 | ||
656 | p = path_make_absolute(de->d_name, path); | |
657 | if (!p) { | |
03e334a1 | 658 | safe_close(nfd); |
d9e5e694 | 659 | return -ENOMEM; |
83096483 LP |
660 | } |
661 | ||
662 | /* This will close nfd, regardless whether it succeeds or not */ | |
3b3557c4 | 663 | q = remove_marked_symlinks_fd(remove_symlinks_to, nfd, p, config_path, lp, dry_run, restart, changes, n_changes); |
bcafe923 | 664 | if (q < 0 && r == 0) |
83096483 LP |
665 | r = q; |
666 | ||
667 | } else if (de->d_type == DT_LNK) { | |
7a6c73da | 668 | _cleanup_free_ char *p = NULL; |
83096483 | 669 | bool found; |
0ec0deaa | 670 | int q; |
83096483 | 671 | |
7410616c | 672 | if (!unit_name_is_valid(de->d_name, UNIT_NAME_ANY)) |
bcafe923 LP |
673 | continue; |
674 | ||
83096483 | 675 | p = path_make_absolute(de->d_name, path); |
d9e5e694 ZJS |
676 | if (!p) |
677 | return -ENOMEM; | |
4ff361cc | 678 | path_simplify(p); |
83096483 | 679 | |
7a6c73da | 680 | /* We remove all links pointing to a file or path that is marked, as well as all |
9f61c9f7 ZJS |
681 | * files sharing the same name as a file that is marked, and files sharing the same |
682 | * name after the instance has been removed. Do path chasing only if we don't already | |
683 | * know that we want to remove the symlink. */ | |
7a6c73da | 684 | found = set_contains(remove_symlinks_to, de->d_name); |
212a24f0 | 685 | |
7a6c73da | 686 | if (!found) { |
9f61c9f7 ZJS |
687 | _cleanup_free_ char *template = NULL; |
688 | ||
689 | q = unit_name_template(de->d_name, &template); | |
690 | if (q < 0 && q != -EINVAL) | |
691 | return q; | |
692 | if (q >= 0) | |
693 | found = set_contains(remove_symlinks_to, template); | |
694 | } | |
7a6c73da | 695 | |
9f61c9f7 ZJS |
696 | if (!found) { |
697 | _cleanup_free_ char *dest = NULL; | |
7a6c73da | 698 | |
f461a28d | 699 | q = chase(p, lp->root_dir, CHASE_NONEXISTENT, &dest, NULL); |
7a6c73da ZJS |
700 | if (q == -ENOENT) |
701 | continue; | |
702 | if (q < 0) { | |
703 | log_debug_errno(q, "Failed to resolve symlink \"%s\": %m", p); | |
cd44ec5a | 704 | install_changes_add(changes, n_changes, q, p, NULL); |
83096483 | 705 | |
7a6c73da ZJS |
706 | if (r == 0) |
707 | r = q; | |
708 | continue; | |
709 | } | |
710 | ||
711 | found = set_contains(remove_symlinks_to, dest) || | |
712 | set_contains(remove_symlinks_to, basename(dest)); | |
713 | ||
714 | } | |
0ec0deaa | 715 | |
83096483 | 716 | |
1dacfd2a LP |
717 | if (!found) |
718 | continue; | |
83096483 | 719 | |
3b3557c4 JS |
720 | if (!dry_run) { |
721 | if (unlinkat(fd, de->d_name, 0) < 0 && errno != ENOENT) { | |
722 | if (r == 0) | |
723 | r = -errno; | |
cd44ec5a | 724 | install_changes_add(changes, n_changes, -errno, p, NULL); |
3b3557c4 JS |
725 | continue; |
726 | } | |
bcafe923 | 727 | |
3b3557c4 JS |
728 | (void) rmdir_parents(p, config_path); |
729 | } | |
83096483 | 730 | |
f31f10a6 ZJS |
731 | q = install_changes_add(changes, n_changes, INSTALL_CHANGE_UNLINK, p, NULL); |
732 | if (q < 0) | |
733 | return q; | |
1dacfd2a | 734 | |
12bf0ae4 ZJS |
735 | /* Now, remember the full path (but with the root prefix removed) of |
736 | * the symlink we just removed, and remove any symlinks to it, too. */ | |
401017e0 | 737 | |
7a6c73da | 738 | const char *rp = skip_root(lp->root_dir, p); |
401017e0 | 739 | q = mark_symlink_for_removal(&remove_symlinks_to, rp ?: p); |
0ec0deaa LP |
740 | if (q < 0) |
741 | return q; | |
3b3557c4 | 742 | if (q > 0 && !dry_run) |
0ec0deaa | 743 | *restart = true; |
83096483 | 744 | } |
83096483 | 745 | |
83096483 LP |
746 | return r; |
747 | } | |
748 | ||
749 | static int remove_marked_symlinks( | |
750 | Set *remove_symlinks_to, | |
751 | const char *config_path, | |
401017e0 | 752 | const LookupPaths *lp, |
3b3557c4 | 753 | bool dry_run, |
cd44ec5a | 754 | InstallChange **changes, |
da6053d0 | 755 | size_t *n_changes) { |
83096483 | 756 | |
254d1313 | 757 | _cleanup_close_ int fd = -EBADF; |
0ec0deaa | 758 | bool restart; |
d25e100b | 759 | int r = 0; |
83096483 LP |
760 | |
761 | assert(config_path); | |
401017e0 | 762 | assert(lp); |
83096483 LP |
763 | |
764 | if (set_size(remove_symlinks_to) <= 0) | |
765 | return 0; | |
766 | ||
67852d08 | 767 | fd = open(config_path, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC); |
83096483 | 768 | if (fd < 0) |
32d9493e | 769 | return errno == ENOENT ? 0 : -errno; |
83096483 LP |
770 | |
771 | do { | |
772 | int q, cfd; | |
0ec0deaa | 773 | restart = false; |
83096483 | 774 | |
ead34950 | 775 | cfd = fcntl(fd, F_DUPFD_CLOEXEC, 3); |
d25e100b LP |
776 | if (cfd < 0) |
777 | return -errno; | |
83096483 LP |
778 | |
779 | /* This takes possession of cfd and closes it */ | |
3b3557c4 | 780 | q = remove_marked_symlinks_fd(remove_symlinks_to, cfd, config_path, config_path, lp, dry_run, &restart, changes, n_changes); |
83096483 LP |
781 | if (r == 0) |
782 | r = q; | |
0ec0deaa | 783 | } while (restart); |
83096483 | 784 | |
83096483 LP |
785 | return r; |
786 | } | |
787 | ||
0047d54d | 788 | static int is_symlink_with_known_name(const InstallInfo *i, const char *name) { |
5cd8ae31 ZJS |
789 | int r; |
790 | ||
791 | if (streq(name, i->name)) | |
792 | return true; | |
793 | ||
794 | if (strv_contains(i->aliases, name)) | |
795 | return true; | |
796 | ||
797 | /* Look for template symlink matching DefaultInstance */ | |
798 | if (i->default_instance && unit_name_is_valid(i->name, UNIT_NAME_TEMPLATE)) { | |
799 | _cleanup_free_ char *s = NULL; | |
800 | ||
801 | r = unit_name_replace_instance(i->name, i->default_instance, &s); | |
802 | if (r < 0) { | |
803 | if (r != -EINVAL) | |
804 | return r; | |
805 | ||
806 | } else if (streq(name, s)) | |
807 | return true; | |
808 | } | |
809 | ||
810 | return false; | |
811 | } | |
812 | ||
43b4e305 MS |
813 | static int find_symlinks_in_directory( |
814 | DIR *dir, | |
815 | const char *dir_path, | |
0ec0deaa | 816 | const char *root_dir, |
0047d54d | 817 | const InstallInfo *info, |
466f6979 ZJS |
818 | bool ignore_destination, |
819 | bool match_name, | |
4b37c89f | 820 | bool ignore_same_name, |
83096483 LP |
821 | const char *config_path, |
822 | bool *same_name_link) { | |
823 | ||
d25e100b | 824 | int r = 0; |
83096483 | 825 | |
43b4e305 | 826 | FOREACH_DIRENT(de, dir, return -errno) { |
466f6979 | 827 | bool found_path = false, found_dest = false, b = false; |
43b4e305 | 828 | int q; |
83096483 | 829 | |
43b4e305 MS |
830 | if (de->d_type != DT_LNK) |
831 | continue; | |
83096483 | 832 | |
466f6979 ZJS |
833 | if (!ignore_destination) { |
834 | _cleanup_free_ char *dest = NULL; | |
835 | ||
836 | /* Acquire symlink destination */ | |
837 | q = readlinkat_malloc(dirfd(dir), de->d_name, &dest); | |
838 | if (q == -ENOENT) | |
839 | continue; | |
840 | if (q < 0) { | |
841 | if (r == 0) | |
842 | r = q; | |
843 | continue; | |
844 | } | |
83096483 | 845 | |
466f6979 ZJS |
846 | /* Make absolute */ |
847 | if (!path_is_absolute(dest)) { | |
848 | char *x; | |
83096483 | 849 | |
466f6979 ZJS |
850 | x = path_join(dir_path, dest); |
851 | if (!x) | |
852 | return -ENOMEM; | |
83096483 | 853 | |
466f6979 ZJS |
854 | free_and_replace(dest, x); |
855 | } | |
856 | ||
857 | /* Check if what the symlink points to matches what we are looking for */ | |
858 | found_dest = streq(basename(dest), info->name); | |
43b4e305 | 859 | } |
83096483 | 860 | |
4a84db4c | 861 | assert(unit_name_is_valid(info->name, UNIT_NAME_ANY)); |
0ec0deaa | 862 | |
466f6979 ZJS |
863 | /* Check if the symlink itself matches what we are looking for. |
864 | * | |
865 | * If ignore_destination is specified, we only look at the source name. | |
866 | * | |
867 | * If ignore_same_name is specified, we are in one of the directories which | |
868 | * have lower priority than the unit file, and even if a file or symlink with | |
869 | * this name was found, we should ignore it. */ | |
870 | ||
871 | if (ignore_destination || !ignore_same_name) | |
872 | found_path = streq(de->d_name, info->name); | |
873 | ||
874 | if (!found_path && ignore_destination) { | |
875 | _cleanup_free_ char *template = NULL; | |
876 | ||
877 | q = unit_name_template(de->d_name, &template); | |
878 | if (q < 0 && q != -EINVAL) | |
879 | return q; | |
880 | if (q >= 0) | |
881 | found_dest = streq(template, info->name); | |
882 | } | |
0ec0deaa | 883 | |
43b4e305 MS |
884 | if (found_path && found_dest) { |
885 | _cleanup_free_ char *p = NULL, *t = NULL; | |
0ec0deaa | 886 | |
466f6979 | 887 | /* Filter out same name links in the main config path */ |
43b4e305 | 888 | p = path_make_absolute(de->d_name, dir_path); |
4a84db4c | 889 | t = path_make_absolute(info->name, config_path); |
83096483 | 890 | |
43b4e305 MS |
891 | if (!p || !t) |
892 | return -ENOMEM; | |
83096483 | 893 | |
43b4e305 MS |
894 | b = path_equal(p, t); |
895 | } | |
83096483 | 896 | |
43b4e305 MS |
897 | if (b) |
898 | *same_name_link = true; | |
899 | else if (found_path || found_dest) { | |
466f6979 | 900 | if (!match_name) |
43b4e305 | 901 | return 1; |
83096483 | 902 | |
43b4e305 | 903 | /* Check if symlink name is in the set of names used by [Install] */ |
4a84db4c | 904 | q = is_symlink_with_known_name(info, de->d_name); |
43b4e305 MS |
905 | if (q < 0) |
906 | return q; | |
907 | if (q > 0) | |
908 | return 1; | |
83096483 LP |
909 | } |
910 | } | |
d25e100b LP |
911 | |
912 | return r; | |
83096483 LP |
913 | } |
914 | ||
915 | static int find_symlinks( | |
0ec0deaa | 916 | const char *root_dir, |
0047d54d | 917 | const InstallInfo *i, |
d9b4b48f | 918 | bool match_name, |
4b37c89f | 919 | bool ignore_same_name, |
83096483 LP |
920 | const char *config_path, |
921 | bool *same_name_link) { | |
922 | ||
43b4e305 | 923 | _cleanup_closedir_ DIR *config_dir = NULL; |
43b4e305 | 924 | int r = 0; |
83096483 | 925 | |
5cd8ae31 | 926 | assert(i); |
83096483 LP |
927 | assert(config_path); |
928 | assert(same_name_link); | |
929 | ||
43b4e305 MS |
930 | config_dir = opendir(config_path); |
931 | if (!config_dir) { | |
a1feacf7 | 932 | if (IN_SET(errno, ENOENT, ENOTDIR, EACCES)) |
d5891fda | 933 | return 0; |
83096483 | 934 | return -errno; |
d5891fda | 935 | } |
83096483 | 936 | |
43b4e305 MS |
937 | FOREACH_DIRENT(de, config_dir, return -errno) { |
938 | const char *suffix; | |
939 | _cleanup_free_ const char *path = NULL; | |
940 | _cleanup_closedir_ DIR *d = NULL; | |
941 | ||
43b4e305 MS |
942 | if (de->d_type != DT_DIR) |
943 | continue; | |
944 | ||
945 | suffix = strrchr(de->d_name, '.'); | |
38f90179 | 946 | if (!STRPTR_IN_SET(suffix, ".wants", ".requires", ".upholds")) |
43b4e305 MS |
947 | continue; |
948 | ||
949 | path = path_join(config_path, de->d_name); | |
950 | if (!path) | |
951 | return -ENOMEM; | |
952 | ||
953 | d = opendir(path); | |
954 | if (!d) { | |
e75a26d0 | 955 | log_error_errno(errno, "Failed to open directory \"%s\" while scanning for symlinks, ignoring: %m", path); |
43b4e305 MS |
956 | continue; |
957 | } | |
958 | ||
466f6979 ZJS |
959 | r = find_symlinks_in_directory(d, path, root_dir, i, |
960 | /* ignore_destination= */ true, | |
961 | /* match_name= */ match_name, | |
962 | /* ignore_same_name= */ ignore_same_name, | |
963 | config_path, | |
964 | same_name_link); | |
43b4e305 MS |
965 | if (r > 0) |
966 | return 1; | |
967 | else if (r < 0) | |
e75a26d0 | 968 | log_debug_errno(r, "Failed to look up symlinks in \"%s\": %m", path); |
43b4e305 MS |
969 | } |
970 | ||
38f90179 MY |
971 | /* We didn't find any suitable symlinks in .wants, .requires or .upholds directories, |
972 | * let's look for linked unit files in this directory. */ | |
43b4e305 | 973 | rewinddir(config_dir); |
466f6979 ZJS |
974 | return find_symlinks_in_directory(config_dir, config_path, root_dir, i, |
975 | /* ignore_destination= */ false, | |
976 | /* match_name= */ match_name, | |
977 | /* ignore_same_name= */ ignore_same_name, | |
978 | config_path, | |
979 | same_name_link); | |
83096483 LP |
980 | } |
981 | ||
982 | static int find_symlinks_in_scope( | |
4870133b | 983 | RuntimeScope scope, |
c3e7fba0 | 984 | const LookupPaths *lp, |
0047d54d | 985 | const InstallInfo *info, |
d9b4b48f | 986 | bool match_name, |
83096483 LP |
987 | UnitFileState *state) { |
988 | ||
dfead90d LP |
989 | bool same_name_link_runtime = false, same_name_link_config = false; |
990 | bool enabled_in_runtime = false, enabled_at_all = false; | |
4b37c89f | 991 | bool ignore_same_name = false; |
0ec0deaa | 992 | int r; |
83096483 | 993 | |
c3e7fba0 | 994 | assert(lp); |
4a84db4c | 995 | assert(info); |
83096483 | 996 | |
c3e7fba0 | 997 | /* As we iterate over the list of search paths in lp->search_path, we may encounter "same name" |
4b37c89f | 998 | * symlinks. The ones which are "below" (i.e. have lower priority) than the unit file itself are |
5238e957 | 999 | * effectively masked, so we should ignore them. */ |
4b37c89f | 1000 | |
c3e7fba0 | 1001 | STRV_FOREACH(p, lp->search_path) { |
dfead90d LP |
1002 | bool same_name_link = false; |
1003 | ||
4a84db4c | 1004 | r = find_symlinks(lp->root_dir, info, match_name, ignore_same_name, *p, &same_name_link); |
dfead90d LP |
1005 | if (r < 0) |
1006 | return r; | |
1007 | if (r > 0) { | |
1008 | /* We found symlinks in this dir? Yay! Let's see where precisely it is enabled. */ | |
1009 | ||
c3e7fba0 | 1010 | if (path_equal_ptr(*p, lp->persistent_config)) { |
dfead90d LP |
1011 | /* This is the best outcome, let's return it immediately. */ |
1012 | *state = UNIT_FILE_ENABLED; | |
1013 | return 1; | |
1014 | } | |
1015 | ||
bb2682bc | 1016 | /* look for global enablement of user units */ |
4870133b | 1017 | if (scope == RUNTIME_SCOPE_USER && path_is_user_config_dir(*p)) { |
d2561cfd ZJS |
1018 | *state = UNIT_FILE_ENABLED; |
1019 | return 1; | |
1020 | } | |
1021 | ||
c3e7fba0 | 1022 | r = path_is_runtime(lp, *p, false); |
dfead90d LP |
1023 | if (r < 0) |
1024 | return r; | |
1025 | if (r > 0) | |
1026 | enabled_in_runtime = true; | |
1027 | else | |
1028 | enabled_at_all = true; | |
1029 | ||
1030 | } else if (same_name_link) { | |
c3e7fba0 | 1031 | if (path_equal_ptr(*p, lp->persistent_config)) |
dfead90d LP |
1032 | same_name_link_config = true; |
1033 | else { | |
c3e7fba0 | 1034 | r = path_is_runtime(lp, *p, false); |
dfead90d LP |
1035 | if (r < 0) |
1036 | return r; | |
1037 | if (r > 0) | |
1038 | same_name_link_runtime = true; | |
1039 | } | |
1040 | } | |
4b37c89f ZJS |
1041 | |
1042 | /* Check if next iteration will be "below" the unit file (either a regular file | |
1043 | * or a symlink), and hence should be ignored */ | |
4a84db4c | 1044 | if (!ignore_same_name && path_startswith(info->path, *p)) |
4b37c89f | 1045 | ignore_same_name = true; |
83096483 LP |
1046 | } |
1047 | ||
dfead90d | 1048 | if (enabled_in_runtime) { |
0ec0deaa | 1049 | *state = UNIT_FILE_ENABLED_RUNTIME; |
dfead90d LP |
1050 | return 1; |
1051 | } | |
1052 | ||
1053 | /* Here's a special rule: if the unit we are looking for is an instance, and it symlinked in the search path | |
1054 | * outside of runtime and configuration directory, then we consider it statically enabled. Note we do that only | |
1055 | * for instance, not for regular names, as those are merely aliases, while instances explicitly instantiate | |
1056 | * something, and hence are a much stronger concept. */ | |
4a84db4c | 1057 | if (enabled_at_all && unit_name_is_valid(info->name, UNIT_NAME_INSTANCE)) { |
dfead90d LP |
1058 | *state = UNIT_FILE_STATIC; |
1059 | return 1; | |
83096483 LP |
1060 | } |
1061 | ||
1062 | /* Hmm, we didn't find it, but maybe we found the same name | |
1063 | * link? */ | |
dfead90d | 1064 | if (same_name_link_config) { |
0ec0deaa LP |
1065 | *state = UNIT_FILE_LINKED; |
1066 | return 1; | |
1067 | } | |
83096483 LP |
1068 | if (same_name_link_runtime) { |
1069 | *state = UNIT_FILE_LINKED_RUNTIME; | |
1070 | return 1; | |
83096483 LP |
1071 | } |
1072 | ||
1073 | return 0; | |
1074 | } | |
1075 | ||
acb5b834 | 1076 | static void install_info_clear(InstallInfo *i) { |
0ec0deaa LP |
1077 | if (!i) |
1078 | return; | |
83096483 | 1079 | |
acb5b834 ZJS |
1080 | i->name = mfree(i->name); |
1081 | i->path = mfree(i->path); | |
1082 | i->root = mfree(i->root); | |
1083 | i->aliases = strv_free(i->aliases); | |
1084 | i->wanted_by = strv_free(i->wanted_by); | |
1085 | i->required_by = strv_free(i->required_by); | |
38f90179 | 1086 | i->upheld_by = strv_free(i->upheld_by); |
acb5b834 ZJS |
1087 | i->also = strv_free(i->also); |
1088 | i->default_instance = mfree(i->default_instance); | |
1089 | i->symlink_target = mfree(i->symlink_target); | |
0ec0deaa | 1090 | } |
83096483 | 1091 | |
acb5b834 ZJS |
1092 | static InstallInfo* install_info_free(InstallInfo *i) { |
1093 | install_info_clear(i); | |
1094 | return mfree(i); | |
1095 | } | |
1096 | ||
1097 | DEFINE_TRIVIAL_CLEANUP_FUNC(InstallInfo*, install_info_free); | |
1098 | ||
4a84db4c ZJS |
1099 | static void install_context_done(InstallContext *ctx) { |
1100 | assert(ctx); | |
83096483 | 1101 | |
4a84db4c ZJS |
1102 | ctx->will_process = ordered_hashmap_free_with_destructor(ctx->will_process, install_info_free); |
1103 | ctx->have_processed = ordered_hashmap_free_with_destructor(ctx->have_processed, install_info_free); | |
0ec0deaa | 1104 | } |
83096483 | 1105 | |
0047d54d ZJS |
1106 | static InstallInfo *install_info_find(InstallContext *ctx, const char *name) { |
1107 | InstallInfo *i; | |
83096483 | 1108 | |
4a84db4c | 1109 | i = ordered_hashmap_get(ctx->have_processed, name); |
0ec0deaa LP |
1110 | if (i) |
1111 | return i; | |
83096483 | 1112 | |
4a84db4c | 1113 | return ordered_hashmap_get(ctx->will_process, name); |
83096483 LP |
1114 | } |
1115 | ||
af3d8113 | 1116 | static int install_info_may_process( |
0047d54d | 1117 | const InstallInfo *i, |
c3e7fba0 | 1118 | const LookupPaths *lp, |
cd44ec5a | 1119 | InstallChange **changes, |
da6053d0 | 1120 | size_t *n_changes) { |
76adb5b8 | 1121 | assert(i); |
c3e7fba0 | 1122 | assert(lp); |
76adb5b8 | 1123 | |
047d91f9 ZJS |
1124 | /* Checks whether the loaded unit file is one we should process, or is masked, |
1125 | * transient or generated and thus not subject to enable/disable operations. */ | |
76adb5b8 | 1126 | |
94e7298d ZJS |
1127 | if (i->install_mode == INSTALL_MODE_MASKED) |
1128 | return install_changes_add(changes, n_changes, -ERFKILL, i->path, NULL); | |
c3e7fba0 | 1129 | if (path_is_generator(lp, i->path) || |
94e7298d ZJS |
1130 | path_is_transient(lp, i->path)) |
1131 | return install_changes_add(changes, n_changes, -EADDRNOTAVAIL, i->path, NULL); | |
76adb5b8 LP |
1132 | |
1133 | return 0; | |
1134 | } | |
1135 | ||
ff56349d | 1136 | /** |
0047d54d | 1137 | * Adds a new InstallInfo entry under name in the InstallContext.will_process |
ff56349d | 1138 | * hashmap, or retrieves the existing one if already present. |
19539807 ZJS |
1139 | * |
1140 | * Returns negative on error, 0 if the unit was already known, 1 otherwise. | |
ff56349d | 1141 | */ |
83096483 | 1142 | static int install_info_add( |
4a84db4c | 1143 | InstallContext *ctx, |
83096483 | 1144 | const char *name, |
0ec0deaa | 1145 | const char *path, |
de61a04b | 1146 | const char *root, |
19539807 | 1147 | bool auxiliary, |
0047d54d | 1148 | InstallInfo **ret) { |
0ec0deaa | 1149 | |
83096483 LP |
1150 | int r; |
1151 | ||
4a84db4c | 1152 | assert(ctx); |
83096483 | 1153 | |
08f46856 BR |
1154 | if (!name) { |
1155 | /* 'name' and 'path' must not both be null. Check here 'path' using assert_se() to | |
1156 | * workaround a bug in gcc that generates a -Wnonnull warning when calling basename(), | |
1157 | * but this cannot be possible in any code path (See #6119). */ | |
1158 | assert_se(path); | |
2b6bf07d | 1159 | name = basename(path); |
08f46856 | 1160 | } |
83096483 | 1161 | |
7410616c | 1162 | if (!unit_name_is_valid(name, UNIT_NAME_ANY)) |
83096483 LP |
1163 | return -EINVAL; |
1164 | ||
acb5b834 | 1165 | InstallInfo *i = install_info_find(ctx, name); |
0ec0deaa | 1166 | if (i) { |
19539807 ZJS |
1167 | i->auxiliary = i->auxiliary && auxiliary; |
1168 | ||
0ec0deaa LP |
1169 | if (ret) |
1170 | *ret = i; | |
83096483 | 1171 | return 0; |
0ec0deaa | 1172 | } |
83096483 | 1173 | |
acb5b834 ZJS |
1174 | _cleanup_(install_info_freep) InstallInfo *alloc = new(InstallInfo, 1); |
1175 | if (!alloc) | |
83096483 | 1176 | return -ENOMEM; |
d23aeead | 1177 | |
acb5b834 | 1178 | *alloc = (InstallInfo) { |
91810c8f | 1179 | .install_mode = _INSTALL_MODE_INVALID, |
d23aeead LP |
1180 | .auxiliary = auxiliary, |
1181 | }; | |
83096483 | 1182 | |
acb5b834 ZJS |
1183 | alloc->name = strdup(name); |
1184 | if (!alloc->name) | |
1185 | return -ENOMEM; | |
83096483 | 1186 | |
de61a04b | 1187 | if (root) { |
acb5b834 ZJS |
1188 | alloc->root = strdup(root); |
1189 | if (!alloc->root) | |
1190 | return -ENOMEM; | |
de61a04b LP |
1191 | } |
1192 | ||
83096483 | 1193 | if (path) { |
acb5b834 ZJS |
1194 | alloc->path = strdup(path); |
1195 | if (!alloc->path) | |
1196 | return -ENOMEM; | |
83096483 LP |
1197 | } |
1198 | ||
acb5b834 | 1199 | r = ordered_hashmap_ensure_put(&ctx->will_process, &string_hash_ops, alloc->name, alloc); |
83096483 | 1200 | if (r < 0) |
acb5b834 ZJS |
1201 | return r; |
1202 | i = TAKE_PTR(alloc); | |
83096483 | 1203 | |
0ec0deaa LP |
1204 | if (ret) |
1205 | *ret = i; | |
19539807 | 1206 | return 1; |
83096483 LP |
1207 | } |
1208 | ||
a7724589 ZJS |
1209 | static int config_parse_alias( |
1210 | const char *unit, | |
1211 | const char *filename, | |
1212 | unsigned line, | |
1213 | const char *section, | |
1214 | unsigned section_line, | |
1215 | const char *lvalue, | |
1216 | int ltype, | |
1217 | const char *rvalue, | |
1218 | void *data, | |
1219 | void *userdata) { | |
1220 | ||
a7724589 ZJS |
1221 | UnitType type; |
1222 | ||
142468d8 | 1223 | assert(unit); |
a7724589 ZJS |
1224 | assert(filename); |
1225 | assert(lvalue); | |
1226 | assert(rvalue); | |
1227 | ||
142468d8 | 1228 | type = unit_name_to_type(unit); |
a7724589 ZJS |
1229 | if (!unit_type_may_alias(type)) |
1230 | return log_syntax(unit, LOG_WARNING, filename, line, 0, | |
3b8769bd | 1231 | "Alias= is not allowed for %s units, ignoring.", |
a7724589 ZJS |
1232 | unit_type_to_string(type)); |
1233 | ||
1234 | return config_parse_strv(unit, filename, line, section, section_line, | |
1235 | lvalue, ltype, rvalue, data, userdata); | |
1236 | } | |
1237 | ||
d54c4993 LP |
1238 | static int config_parse_also( |
1239 | const char *unit, | |
1240 | const char *filename, | |
1241 | unsigned line, | |
1242 | const char *section, | |
1243 | unsigned section_line, | |
1244 | const char *lvalue, | |
1245 | int ltype, | |
1246 | const char *rvalue, | |
1247 | void *data, | |
1248 | void *userdata) { | |
83096483 | 1249 | |
0047d54d | 1250 | InstallInfo *info = ASSERT_PTR(userdata); |
4a84db4c | 1251 | InstallContext *ctx = ASSERT_PTR(data); |
0ec0deaa | 1252 | int r; |
83096483 | 1253 | |
142468d8 | 1254 | assert(unit); |
83096483 LP |
1255 | assert(filename); |
1256 | assert(lvalue); | |
1257 | assert(rvalue); | |
1258 | ||
0ec0deaa | 1259 | for (;;) { |
a6612e65 | 1260 | _cleanup_free_ char *word = NULL, *printed = NULL; |
03da6513 | 1261 | |
0ec0deaa LP |
1262 | r = extract_first_word(&rvalue, &word, NULL, 0); |
1263 | if (r < 0) | |
1264 | return r; | |
03da6513 SS |
1265 | if (r == 0) |
1266 | break; | |
83096483 | 1267 | |
38e8a6c7 | 1268 | r = install_name_printf(ctx->scope, info, word, &printed); |
d9e5e694 | 1269 | if (r < 0) |
6ec4c852 ZJS |
1270 | return log_syntax(unit, LOG_WARNING, filename, line, r, |
1271 | "Failed to resolve unit name in Also=\"%s\": %m", word); | |
aedd4012 | 1272 | |
4a84db4c | 1273 | r = install_info_add(ctx, printed, NULL, info->root, /* auxiliary= */ true, NULL); |
d9e5e694 | 1274 | if (r < 0) |
83096483 | 1275 | return r; |
aedd4012 | 1276 | |
a6612e65 | 1277 | r = strv_push(&info->also, printed); |
aedd4012 JS |
1278 | if (r < 0) |
1279 | return r; | |
0ec0deaa | 1280 | |
a6612e65 | 1281 | printed = NULL; |
83096483 LP |
1282 | } |
1283 | ||
1284 | return 0; | |
1285 | } | |
1286 | ||
d54c4993 LP |
1287 | static int config_parse_default_instance( |
1288 | const char *unit, | |
1289 | const char *filename, | |
1290 | unsigned line, | |
1291 | const char *section, | |
1292 | unsigned section_line, | |
1293 | const char *lvalue, | |
1294 | int ltype, | |
1295 | const char *rvalue, | |
1296 | void *data, | |
1297 | void *userdata) { | |
1298 | ||
172e9cc3 | 1299 | InstallContext *ctx = ASSERT_PTR(data); |
0047d54d | 1300 | InstallInfo *info = ASSERT_PTR(userdata); |
d7604756 | 1301 | _cleanup_free_ char *printed = NULL; |
d54c4993 LP |
1302 | int r; |
1303 | ||
142468d8 | 1304 | assert(unit); |
d54c4993 LP |
1305 | assert(filename); |
1306 | assert(lvalue); | |
1307 | assert(rvalue); | |
1308 | ||
142468d8 | 1309 | if (unit_name_is_valid(unit, UNIT_NAME_INSTANCE)) |
6597fa61 ZJS |
1310 | /* When enabling an instance, we might be using a template unit file, |
1311 | * but we should ignore DefaultInstance silently. */ | |
1312 | return 0; | |
142468d8 | 1313 | if (!unit_name_is_valid(unit, UNIT_NAME_TEMPLATE)) |
6597fa61 | 1314 | return log_syntax(unit, LOG_WARNING, filename, line, 0, |
10d67460 | 1315 | "DefaultInstance= only makes sense for template units, ignoring."); |
6597fa61 | 1316 | |
38e8a6c7 | 1317 | r = install_name_printf(ctx->scope, info, rvalue, &printed); |
d54c4993 | 1318 | if (r < 0) |
6ec4c852 ZJS |
1319 | return log_syntax(unit, LOG_WARNING, filename, line, r, |
1320 | "Failed to resolve instance name in DefaultInstance=\"%s\": %m", rvalue); | |
d54c4993 | 1321 | |
6ec4c852 ZJS |
1322 | if (isempty(printed)) |
1323 | printed = mfree(printed); | |
b5395600 | 1324 | |
6ec4c852 | 1325 | if (printed && !unit_instance_is_valid(printed)) |
e5171296 ZJS |
1326 | return log_syntax(unit, LOG_WARNING, filename, line, SYNTHETIC_ERRNO(EINVAL), |
1327 | "Invalid DefaultInstance= value \"%s\".", printed); | |
d54c4993 | 1328 | |
4a84db4c | 1329 | return free_and_replace(info->default_instance, printed); |
d54c4993 LP |
1330 | } |
1331 | ||
83096483 | 1332 | static int unit_file_load( |
4a84db4c | 1333 | InstallContext *ctx, |
0047d54d | 1334 | InstallInfo *info, |
83096483 | 1335 | const char *path, |
d04a9386 | 1336 | const char *root_dir, |
0ec0deaa | 1337 | SearchFlags flags) { |
83096483 | 1338 | |
f975e971 | 1339 | const ConfigTableItem items[] = { |
a7724589 | 1340 | { "Install", "Alias", config_parse_alias, 0, &info->aliases }, |
d54c4993 LP |
1341 | { "Install", "WantedBy", config_parse_strv, 0, &info->wanted_by }, |
1342 | { "Install", "RequiredBy", config_parse_strv, 0, &info->required_by }, | |
38f90179 | 1343 | { "Install", "UpheldBy", config_parse_strv, 0, &info->upheld_by }, |
d54c4993 | 1344 | { "Install", "DefaultInstance", config_parse_default_instance, 0, info }, |
4a84db4c | 1345 | { "Install", "Also", config_parse_also, 0, ctx }, |
d54c4993 | 1346 | {} |
83096483 LP |
1347 | }; |
1348 | ||
133e5b36 | 1349 | UnitType type; |
7fd1b19b | 1350 | _cleanup_fclose_ FILE *f = NULL; |
254d1313 | 1351 | _cleanup_close_ int fd = -EBADF; |
0ec0deaa LP |
1352 | struct stat st; |
1353 | int r; | |
83096483 | 1354 | |
83096483 LP |
1355 | assert(info); |
1356 | assert(path); | |
1357 | ||
d04a9386 LP |
1358 | if (!(flags & SEARCH_DROPIN)) { |
1359 | /* Loading or checking for the main unit file… */ | |
133e5b36 | 1360 | |
d04a9386 LP |
1361 | type = unit_name_to_type(info->name); |
1362 | if (type < 0) | |
1363 | return -EINVAL; | |
baaa35ad ZJS |
1364 | if (unit_name_is_valid(info->name, UNIT_NAME_TEMPLATE|UNIT_NAME_INSTANCE) && !unit_type_may_template(type)) |
1365 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), | |
bce84e10 | 1366 | "%s: unit type %s cannot be templated, ignoring.", path, unit_type_to_string(type)); |
d04a9386 LP |
1367 | |
1368 | if (!(flags & SEARCH_LOAD)) { | |
4276749d | 1369 | if (lstat(path, &st) < 0) |
d04a9386 LP |
1370 | return -errno; |
1371 | ||
1372 | if (null_or_empty(&st)) | |
91810c8f | 1373 | info->install_mode = INSTALL_MODE_MASKED; |
d04a9386 | 1374 | else if (S_ISREG(st.st_mode)) |
91810c8f | 1375 | info->install_mode = INSTALL_MODE_REGULAR; |
d04a9386 LP |
1376 | else if (S_ISLNK(st.st_mode)) |
1377 | return -ELOOP; | |
1378 | else if (S_ISDIR(st.st_mode)) | |
1379 | return -EISDIR; | |
1380 | else | |
1381 | return -ENOTTY; | |
1382 | ||
1383 | return 0; | |
1384 | } | |
1385 | ||
1386 | fd = open(path, O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW); | |
1387 | if (fd < 0) | |
d25e100b | 1388 | return -errno; |
d04a9386 LP |
1389 | } else { |
1390 | /* 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 | 1391 | |
d04a9386 LP |
1392 | if (!(flags & SEARCH_LOAD)) |
1393 | return 0; | |
0ec0deaa | 1394 | |
f461a28d | 1395 | fd = chase_and_open(path, root_dir, 0, O_RDONLY|O_CLOEXEC|O_NOCTTY, NULL); |
d04a9386 LP |
1396 | if (fd < 0) |
1397 | return fd; | |
e94937df LN |
1398 | } |
1399 | ||
0ec0deaa LP |
1400 | if (fstat(fd, &st) < 0) |
1401 | return -errno; | |
d04a9386 | 1402 | |
0ec0deaa | 1403 | if (null_or_empty(&st)) { |
d04a9386 | 1404 | if ((flags & SEARCH_DROPIN) == 0) |
91810c8f | 1405 | info->install_mode = INSTALL_MODE_MASKED; |
d04a9386 | 1406 | |
0ec0deaa LP |
1407 | return 0; |
1408 | } | |
3cc44114 LP |
1409 | |
1410 | r = stat_verify_regular(&st); | |
1411 | if (r < 0) | |
1412 | return r; | |
83096483 | 1413 | |
4fa744a3 | 1414 | f = take_fdopen(&fd, "r"); |
0ec0deaa LP |
1415 | if (!f) |
1416 | return -errno; | |
83096483 | 1417 | |
4a84db4c ZJS |
1418 | /* ctx is only needed if we actually load the file (it's referenced from items[] btw, in case you wonder.) */ |
1419 | assert(ctx); | |
d04a9386 | 1420 | |
142468d8 | 1421 | r = config_parse(info->name, path, f, |
f4331d0d ZJS |
1422 | "Install\0" |
1423 | "-Unit\0" | |
1424 | "-Automount\0" | |
1425 | "-Device\0" | |
1426 | "-Mount\0" | |
1427 | "-Path\0" | |
1428 | "-Scope\0" | |
1429 | "-Service\0" | |
1430 | "-Slice\0" | |
1431 | "-Socket\0" | |
1432 | "-Swap\0" | |
1433 | "-Target\0" | |
1434 | "-Timer\0", | |
36f822c4 | 1435 | config_item_table_lookup, items, |
7ade8982 | 1436 | 0, info, |
4f9ff96a | 1437 | NULL); |
83096483 | 1438 | if (r < 0) |
e75a26d0 | 1439 | return log_debug_errno(r, "Failed to parse \"%s\": %m", info->name); |
83096483 | 1440 | |
d04a9386 | 1441 | if ((flags & SEARCH_DROPIN) == 0) |
91810c8f | 1442 | info->install_mode = INSTALL_MODE_REGULAR; |
aedd4012 | 1443 | |
78d54bd4 | 1444 | return |
693eb9a2 LP |
1445 | (int) strv_length(info->aliases) + |
1446 | (int) strv_length(info->wanted_by) + | |
38f90179 MY |
1447 | (int) strv_length(info->required_by) + |
1448 | (int) strv_length(info->upheld_by); | |
83096483 LP |
1449 | } |
1450 | ||
0ec0deaa | 1451 | static int unit_file_load_or_readlink( |
4a84db4c | 1452 | InstallContext *ctx, |
0047d54d | 1453 | InstallInfo *info, |
0ec0deaa | 1454 | const char *path, |
c3e7fba0 | 1455 | const LookupPaths *lp, |
0ec0deaa | 1456 | SearchFlags flags) { |
0ec0deaa LP |
1457 | int r; |
1458 | ||
4a84db4c | 1459 | r = unit_file_load(ctx, info, path, lp->root_dir, flags); |
d04a9386 | 1460 | if (r != -ELOOP || (flags & SEARCH_DROPIN)) |
0ec0deaa LP |
1461 | return r; |
1462 | ||
047d37dc ZJS |
1463 | /* This is a symlink, let's read and verify it. */ |
1464 | r = unit_file_resolve_symlink(lp->root_dir, lp->search_path, | |
1465 | NULL, AT_FDCWD, path, | |
1466 | true, &info->symlink_target); | |
1467 | if (r < 0) | |
1468 | return r; | |
48ed75ad | 1469 | bool outside_search_path = r > 0; |
4276749d | 1470 | |
047d37dc ZJS |
1471 | r = null_or_empty_path_with_root(info->symlink_target, lp->root_dir); |
1472 | if (r < 0 && r != -ENOENT) | |
1473 | return log_debug_errno(r, "Failed to stat %s: %m", info->symlink_target); | |
1474 | if (r > 0) | |
91810c8f | 1475 | info->install_mode = INSTALL_MODE_MASKED; |
48ed75ad | 1476 | else if (outside_search_path) |
91810c8f | 1477 | info->install_mode = INSTALL_MODE_LINKED; |
047d37dc | 1478 | else |
91810c8f | 1479 | info->install_mode = INSTALL_MODE_ALIAS; |
0ec0deaa LP |
1480 | |
1481 | return 0; | |
1482 | } | |
1483 | ||
83096483 | 1484 | static int unit_file_search( |
4a84db4c | 1485 | InstallContext *ctx, |
0047d54d | 1486 | InstallInfo *info, |
c3e7fba0 | 1487 | const LookupPaths *lp, |
0ec0deaa | 1488 | SearchFlags flags) { |
83096483 | 1489 | |
d04a9386 LP |
1490 | const char *dropin_dir_name = NULL, *dropin_template_dir_name = NULL; |
1491 | _cleanup_strv_free_ char **dirs = NULL, **files = NULL; | |
64f9280e | 1492 | _cleanup_free_ char *template = NULL; |
142468d8 | 1493 | bool found_unit = false; |
d04a9386 | 1494 | int r, result; |
83096483 | 1495 | |
83096483 | 1496 | assert(info); |
c3e7fba0 | 1497 | assert(lp); |
83096483 | 1498 | |
0ec0deaa | 1499 | /* Was this unit already loaded? */ |
91810c8f | 1500 | if (info->install_mode != _INSTALL_MODE_INVALID) |
0ec0deaa LP |
1501 | return 0; |
1502 | ||
278fa575 | 1503 | if (info->path) |
4a84db4c | 1504 | return unit_file_load_or_readlink(ctx, info, info->path, lp, flags); |
83096483 LP |
1505 | |
1506 | assert(info->name); | |
1507 | ||
142468d8 JL |
1508 | if (unit_name_is_valid(info->name, UNIT_NAME_INSTANCE)) { |
1509 | r = unit_name_template(info->name, &template); | |
1510 | if (r < 0) | |
1511 | return r; | |
1512 | } | |
1513 | ||
c3e7fba0 | 1514 | STRV_FOREACH(p, lp->search_path) { |
e50bd775 | 1515 | _cleanup_free_ char *path = NULL; |
83096483 | 1516 | |
657ee2d8 | 1517 | path = path_join(*p, info->name); |
83096483 LP |
1518 | if (!path) |
1519 | return -ENOMEM; | |
1520 | ||
4a84db4c | 1521 | r = unit_file_load_or_readlink(ctx, info, path, lp, flags); |
0155928c | 1522 | if (r >= 0) { |
ae2a15bc | 1523 | info->path = TAKE_PTR(path); |
142468d8 JL |
1524 | result = r; |
1525 | found_unit = true; | |
1526 | break; | |
a1feacf7 | 1527 | } else if (!IN_SET(r, -ENOENT, -ENOTDIR, -EACCES)) |
0155928c | 1528 | return r; |
e50bd775 | 1529 | } |
62b00233 | 1530 | |
142468d8 JL |
1531 | if (!found_unit && template) { |
1532 | ||
e50bd775 LP |
1533 | /* Unit file doesn't exist, however instance |
1534 | * enablement was requested. We will check if it is | |
1535 | * possible to load template unit file. */ | |
29283ea4 | 1536 | |
c3e7fba0 | 1537 | STRV_FOREACH(p, lp->search_path) { |
e50bd775 LP |
1538 | _cleanup_free_ char *path = NULL; |
1539 | ||
657ee2d8 | 1540 | path = path_join(*p, template); |
62b00233 ZJS |
1541 | if (!path) |
1542 | return -ENOMEM; | |
29283ea4 | 1543 | |
4a84db4c | 1544 | r = unit_file_load_or_readlink(ctx, info, path, lp, flags); |
0155928c | 1545 | if (r >= 0) { |
ae2a15bc | 1546 | info->path = TAKE_PTR(path); |
142468d8 JL |
1547 | result = r; |
1548 | found_unit = true; | |
1549 | break; | |
a1feacf7 | 1550 | } else if (!IN_SET(r, -ENOENT, -ENOTDIR, -EACCES)) |
0155928c | 1551 | return r; |
29283ea4 | 1552 | } |
83096483 LP |
1553 | } |
1554 | ||
baaa35ad ZJS |
1555 | if (!found_unit) |
1556 | return log_debug_errno(SYNTHETIC_ERRNO(ENOENT), | |
1557 | "Cannot find unit %s%s%s.", | |
1558 | info->name, template ? " or " : "", strempty(template)); | |
142468d8 | 1559 | |
91810c8f | 1560 | if (info->install_mode == INSTALL_MODE_MASKED) |
9639b175 FB |
1561 | return result; |
1562 | ||
142468d8 JL |
1563 | /* Search for drop-in directories */ |
1564 | ||
1565 | dropin_dir_name = strjoina(info->name, ".d"); | |
c3e7fba0 | 1566 | STRV_FOREACH(p, lp->search_path) { |
142468d8 JL |
1567 | char *path; |
1568 | ||
62a85ee0 | 1569 | path = path_join(*p, dropin_dir_name); |
142468d8 JL |
1570 | if (!path) |
1571 | return -ENOMEM; | |
1572 | ||
1573 | r = strv_consume(&dirs, path); | |
1574 | if (r < 0) | |
1575 | return r; | |
1576 | } | |
1577 | ||
1578 | if (template) { | |
1579 | dropin_template_dir_name = strjoina(template, ".d"); | |
c3e7fba0 | 1580 | STRV_FOREACH(p, lp->search_path) { |
142468d8 JL |
1581 | char *path; |
1582 | ||
62a85ee0 | 1583 | path = path_join(*p, dropin_template_dir_name); |
142468d8 JL |
1584 | if (!path) |
1585 | return -ENOMEM; | |
1586 | ||
1587 | r = strv_consume(&dirs, path); | |
1588 | if (r < 0) | |
1589 | return r; | |
1590 | } | |
1591 | } | |
1592 | ||
1593 | /* Load drop-in conf files */ | |
1594 | ||
1595 | r = conf_files_list_strv(&files, ".conf", NULL, 0, (const char**) dirs); | |
1596 | if (r < 0) | |
1597 | return log_debug_errno(r, "Failed to get list of conf files: %m"); | |
1598 | ||
1599 | STRV_FOREACH(p, files) { | |
4a84db4c | 1600 | r = unit_file_load_or_readlink(ctx, info, *p, lp, flags | SEARCH_DROPIN); |
142468d8 | 1601 | if (r < 0) |
e75a26d0 | 1602 | return log_debug_errno(r, "Failed to load conf file \"%s\": %m", *p); |
142468d8 JL |
1603 | } |
1604 | ||
1605 | return result; | |
83096483 LP |
1606 | } |
1607 | ||
0ec0deaa | 1608 | static int install_info_follow( |
4a84db4c | 1609 | InstallContext *ctx, |
0047d54d | 1610 | InstallInfo *info, |
c3e7fba0 | 1611 | const LookupPaths *lp, |
9f6cbcf5 LP |
1612 | SearchFlags flags, |
1613 | bool ignore_different_name) { | |
0ec0deaa | 1614 | |
4a84db4c ZJS |
1615 | assert(ctx); |
1616 | assert(info); | |
0ec0deaa | 1617 | |
91810c8f | 1618 | if (!IN_SET(info->install_mode, INSTALL_MODE_ALIAS, INSTALL_MODE_LINKED)) |
0ec0deaa | 1619 | return -EINVAL; |
4a84db4c | 1620 | if (!info->symlink_target) |
0ec0deaa LP |
1621 | return -EINVAL; |
1622 | ||
4f5c2485 | 1623 | /* If the basename doesn't match, the caller should add a complete new entry for this. */ |
0ec0deaa | 1624 | |
4a84db4c | 1625 | if (!ignore_different_name && !streq(basename(info->symlink_target), info->name)) |
0ec0deaa LP |
1626 | return -EXDEV; |
1627 | ||
4a84db4c | 1628 | free_and_replace(info->path, info->symlink_target); |
91810c8f | 1629 | info->install_mode = _INSTALL_MODE_INVALID; |
0ec0deaa | 1630 | |
4a84db4c | 1631 | return unit_file_load_or_readlink(ctx, info, info->path, lp, flags); |
0ec0deaa LP |
1632 | } |
1633 | ||
64f9280e | 1634 | /** |
ff56349d ZJS |
1635 | * Search for the unit file. If the unit name is a symlink, follow the symlink to the |
1636 | * target, maybe more than once. Propagate the instance name if present. | |
64f9280e | 1637 | */ |
0ec0deaa | 1638 | static int install_info_traverse( |
4a84db4c | 1639 | InstallContext *ctx, |
c3e7fba0 | 1640 | const LookupPaths *lp, |
0047d54d | 1641 | InstallInfo *start, |
0ec0deaa | 1642 | SearchFlags flags, |
0047d54d | 1643 | InstallInfo **ret) { |
83096483 | 1644 | |
0047d54d | 1645 | InstallInfo *i; |
0ec0deaa | 1646 | unsigned k = 0; |
83096483 LP |
1647 | int r; |
1648 | ||
c3e7fba0 | 1649 | assert(lp); |
0ec0deaa | 1650 | assert(start); |
4a84db4c | 1651 | assert(ctx); |
83096483 | 1652 | |
4a84db4c | 1653 | r = unit_file_search(ctx, start, lp, flags); |
83096483 LP |
1654 | if (r < 0) |
1655 | return r; | |
1656 | ||
0ec0deaa | 1657 | i = start; |
91810c8f | 1658 | while (IN_SET(i->install_mode, INSTALL_MODE_ALIAS, INSTALL_MODE_LINKED)) { |
0ec0deaa | 1659 | /* Follow the symlink */ |
83096483 | 1660 | |
0ec0deaa LP |
1661 | if (++k > UNIT_FILE_FOLLOW_SYMLINK_MAX) |
1662 | return -ELOOP; | |
83096483 | 1663 | |
e1c5c2b0 | 1664 | if (!(flags & SEARCH_FOLLOW_CONFIG_SYMLINKS)) { |
c3e7fba0 | 1665 | r = path_is_config(lp, i->path, true); |
e1c5c2b0 LP |
1666 | if (r < 0) |
1667 | return r; | |
1668 | if (r > 0) | |
1669 | return -ELOOP; | |
1670 | } | |
83096483 | 1671 | |
48eadb9d ZJS |
1672 | r = install_info_follow(ctx, i, lp, flags, |
1673 | /* If linked, don't look at the target name */ | |
91810c8f | 1674 | /* ignore_different_name= */ i->install_mode == INSTALL_MODE_LINKED); |
19cfda9f | 1675 | if (r == -EXDEV && i->symlink_target) { |
0ec0deaa LP |
1676 | _cleanup_free_ char *buffer = NULL; |
1677 | const char *bn; | |
83096483 | 1678 | |
4f5c2485 | 1679 | /* Target is an alias, create a new install info object and continue with that. */ |
83096483 | 1680 | |
0ec0deaa | 1681 | bn = basename(i->symlink_target); |
83096483 | 1682 | |
0ec0deaa LP |
1683 | if (unit_name_is_valid(i->name, UNIT_NAME_INSTANCE) && |
1684 | unit_name_is_valid(bn, UNIT_NAME_TEMPLATE)) { | |
83096483 | 1685 | |
0ec0deaa LP |
1686 | _cleanup_free_ char *instance = NULL; |
1687 | ||
1688 | r = unit_name_to_instance(i->name, &instance); | |
1689 | if (r < 0) | |
1690 | return r; | |
1691 | ||
1692 | r = unit_name_replace_instance(bn, instance, &buffer); | |
1693 | if (r < 0) | |
1694 | return r; | |
1695 | ||
9f6cbcf5 LP |
1696 | if (streq(buffer, i->name)) { |
1697 | ||
4f5c2485 ZJS |
1698 | /* We filled in the instance, and the target stayed the same? If so, |
1699 | * then let's honour the link as it is. */ | |
9f6cbcf5 | 1700 | |
4a84db4c | 1701 | r = install_info_follow(ctx, i, lp, flags, true); |
9f6cbcf5 LP |
1702 | if (r < 0) |
1703 | return r; | |
1704 | ||
1705 | continue; | |
1706 | } | |
1707 | ||
0ec0deaa LP |
1708 | bn = buffer; |
1709 | } | |
1710 | ||
4a84db4c | 1711 | r = install_info_add(ctx, bn, NULL, lp->root_dir, /* auxiliary= */ false, &i); |
0ec0deaa LP |
1712 | if (r < 0) |
1713 | return r; | |
1714 | ||
0155928c | 1715 | /* Try again, with the new target we found. */ |
4a84db4c | 1716 | r = unit_file_search(ctx, i, lp, flags); |
893275df ZJS |
1717 | if (r == -ENOENT) |
1718 | /* Translate error code to highlight this specific case */ | |
1719 | return -ENOLINK; | |
0ec0deaa LP |
1720 | } |
1721 | ||
0155928c ZJS |
1722 | if (r < 0) |
1723 | return r; | |
83096483 LP |
1724 | } |
1725 | ||
0ec0deaa LP |
1726 | if (ret) |
1727 | *ret = i; | |
83096483 | 1728 | |
0ec0deaa LP |
1729 | return 0; |
1730 | } | |
83096483 | 1731 | |
ff56349d ZJS |
1732 | /** |
1733 | * Call install_info_add() with name_or_path as the path (if name_or_path starts with "/") | |
1734 | * or the name (otherwise). root_dir is prepended to the path. | |
1735 | */ | |
401017e0 | 1736 | static int install_info_add_auto( |
4a84db4c | 1737 | InstallContext *ctx, |
c3e7fba0 | 1738 | const LookupPaths *lp, |
401017e0 | 1739 | const char *name_or_path, |
0047d54d | 1740 | InstallInfo **ret) { |
401017e0 | 1741 | |
4a84db4c | 1742 | assert(ctx); |
401017e0 LP |
1743 | assert(name_or_path); |
1744 | ||
1745 | if (path_is_absolute(name_or_path)) { | |
1746 | const char *pp; | |
1747 | ||
c3e7fba0 | 1748 | pp = prefix_roota(lp->root_dir, name_or_path); |
401017e0 | 1749 | |
4a84db4c | 1750 | return install_info_add(ctx, NULL, pp, lp->root_dir, /* auxiliary= */ false, ret); |
401017e0 | 1751 | } else |
4a84db4c | 1752 | return install_info_add(ctx, name_or_path, NULL, lp->root_dir, /* auxiliary= */ false, ret); |
401017e0 LP |
1753 | } |
1754 | ||
0ec0deaa | 1755 | static int install_info_discover( |
4a84db4c | 1756 | InstallContext *ctx, |
c3e7fba0 | 1757 | const LookupPaths *lp, |
0f87041f | 1758 | const char *name_or_path, |
0ec0deaa | 1759 | SearchFlags flags, |
0047d54d | 1760 | InstallInfo **ret, |
cd44ec5a | 1761 | InstallChange **changes, |
da6053d0 | 1762 | size_t *n_changes) { |
83096483 | 1763 | |
0047d54d | 1764 | InstallInfo *info; |
0ec0deaa | 1765 | int r; |
83096483 | 1766 | |
4a84db4c | 1767 | assert(ctx); |
c3e7fba0 | 1768 | assert(lp); |
0f87041f | 1769 | assert(name_or_path); |
0ec0deaa | 1770 | |
0f87041f | 1771 | r = install_info_add_auto(ctx, lp, name_or_path, &info); |
59108fbe | 1772 | if (r >= 0) |
4a84db4c | 1773 | r = install_info_traverse(ctx, lp, info, flags, ret); |
83096483 | 1774 | |
59108fbe | 1775 | if (r < 0) |
cd44ec5a | 1776 | install_changes_add(changes, n_changes, r, name_or_path, NULL); |
59108fbe | 1777 | return r; |
83096483 LP |
1778 | } |
1779 | ||
1e475a0a | 1780 | static int install_info_discover_and_check( |
4a84db4c ZJS |
1781 | InstallContext *ctx, |
1782 | const LookupPaths *lp, | |
0f87041f | 1783 | const char *name_or_path, |
4a84db4c | 1784 | SearchFlags flags, |
0047d54d | 1785 | InstallInfo **ret, |
cd44ec5a | 1786 | InstallChange **changes, |
4a84db4c | 1787 | size_t *n_changes) { |
1e475a0a RB |
1788 | |
1789 | int r; | |
1790 | ||
0f87041f | 1791 | r = install_info_discover(ctx, lp, name_or_path, flags, ret, changes, n_changes); |
1e475a0a RB |
1792 | if (r < 0) |
1793 | return r; | |
1794 | ||
c3e7fba0 | 1795 | return install_info_may_process(ret ? *ret : NULL, lp, changes, n_changes); |
1e475a0a RB |
1796 | } |
1797 | ||
cbfdbffb | 1798 | int unit_file_verify_alias( |
0047d54d | 1799 | const InstallInfo *info, |
cbfdbffb ZJS |
1800 | const char *dst, |
1801 | char **ret_dst, | |
cd44ec5a | 1802 | InstallChange **changes, |
cbfdbffb ZJS |
1803 | size_t *n_changes) { |
1804 | ||
3f57bc22 | 1805 | _cleanup_free_ char *dst_updated = NULL; |
aa0f357f ZJS |
1806 | int r; |
1807 | ||
3f57bc22 ZJS |
1808 | /* Verify that dst is a valid either a valid alias or a valid .wants/.requires symlink for the target |
1809 | * unit *i. Return negative on error or if not compatible, zero on success. | |
1810 | * | |
1811 | * ret_dst is set in cases where "instance propagation" happens, i.e. when the instance part is | |
1812 | * inserted into dst. It is not normally set, even on success, so that the caller can easily | |
162392b7 | 1813 | * distinguish the case where instance propagation occurred. |
f663e646 ZJS |
1814 | * |
1815 | * Returns: | |
1816 | * -EXDEV when the alias doesn't match the unit, | |
1817 | * -EUCLEAN when the name is invalid, | |
1818 | * -ELOOP when the alias it to the unit itself. | |
3f57bc22 ZJS |
1819 | */ |
1820 | ||
1821 | const char *path_alias = strrchr(dst, '/'); | |
1822 | if (path_alias) { | |
1823 | /* This branch covers legacy Alias= function of creating .wants and .requires symlinks. */ | |
1824 | _cleanup_free_ char *dir = NULL; | |
1bf15585 | 1825 | char *p; |
aa0f357f | 1826 | |
3f57bc22 | 1827 | path_alias ++; /* skip over slash */ |
aa0f357f | 1828 | |
45519d13 LP |
1829 | r = path_extract_directory(dst, &dir); |
1830 | if (r < 0) | |
1831 | return log_error_errno(r, "Failed to extract parent directory from '%s': %m", dst); | |
aa0f357f | 1832 | |
1bf15585 ZJS |
1833 | p = endswith(dir, ".wants"); |
1834 | if (!p) | |
1835 | p = endswith(dir, ".requires"); | |
cbfdbffb | 1836 | if (!p) { |
cd44ec5a | 1837 | install_changes_add(changes, n_changes, -EXDEV, dst, NULL); |
cbfdbffb ZJS |
1838 | return log_debug_errno(SYNTHETIC_ERRNO(EXDEV), "Invalid path \"%s\" in alias.", dir); |
1839 | } | |
1840 | ||
1bf15585 ZJS |
1841 | *p = '\0'; /* dir should now be a unit name */ |
1842 | ||
73ce91a0 | 1843 | UnitNameFlags type = unit_name_classify(dir); |
cbfdbffb | 1844 | if (type < 0) { |
cd44ec5a | 1845 | install_changes_add(changes, n_changes, -EXDEV, dst, NULL); |
cbfdbffb ZJS |
1846 | return log_debug_errno(SYNTHETIC_ERRNO(EXDEV), |
1847 | "Invalid unit name component \"%s\" in alias.", dir); | |
1848 | } | |
1bf15585 | 1849 | |
73ce91a0 | 1850 | const bool instance_propagation = type == UNIT_NAME_TEMPLATE; |
3f57bc22 ZJS |
1851 | |
1852 | /* That's the name we want to use for verification. */ | |
4a84db4c | 1853 | r = unit_symlink_name_compatible(path_alias, info->name, instance_propagation); |
aa0f357f | 1854 | if (r < 0) |
3f57bc22 | 1855 | return log_error_errno(r, "Failed to verify alias validity: %m"); |
cbfdbffb | 1856 | if (r == 0) { |
cd44ec5a | 1857 | install_changes_add(changes, n_changes, -EXDEV, dst, info->name); |
cbfdbffb ZJS |
1858 | return log_debug_errno(SYNTHETIC_ERRNO(EXDEV), |
1859 | "Invalid unit \"%s\" symlink \"%s\".", | |
1860 | info->name, dst); | |
1861 | } | |
3f57bc22 ZJS |
1862 | |
1863 | } else { | |
1864 | /* If the symlink target has an instance set and the symlink source doesn't, we "propagate | |
1865 | * the instance", i.e. instantiate the symlink source with the target instance. */ | |
1866 | if (unit_name_is_valid(dst, UNIT_NAME_TEMPLATE)) { | |
1867 | _cleanup_free_ char *inst = NULL; | |
1868 | ||
4a84db4c | 1869 | UnitNameFlags type = unit_name_to_instance(info->name, &inst); |
cbfdbffb | 1870 | if (type < 0) { |
cd44ec5a | 1871 | install_changes_add(changes, n_changes, -EUCLEAN, info->name, NULL); |
cbfdbffb ZJS |
1872 | return log_debug_errno(type, "Failed to extract instance name from \"%s\": %m", info->name); |
1873 | } | |
3f57bc22 | 1874 | |
73ce91a0 | 1875 | if (type == UNIT_NAME_INSTANCE) { |
3f57bc22 ZJS |
1876 | r = unit_name_replace_instance(dst, inst, &dst_updated); |
1877 | if (r < 0) | |
1878 | return log_error_errno(r, "Failed to build unit name from %s+%s: %m", | |
1879 | dst, inst); | |
1880 | } | |
1881 | } | |
aa0f357f | 1882 | |
cbfdbffb | 1883 | r = unit_validate_alias_symlink_or_warn(LOG_DEBUG, dst_updated ?: dst, info->name); |
f663e646 ZJS |
1884 | if (r == -ELOOP) /* -ELOOP means self-alias, which we (quietly) ignore */ |
1885 | return r; | |
94e7298d ZJS |
1886 | if (r < 0) |
1887 | return install_changes_add(changes, n_changes, | |
1888 | r == -EINVAL ? -EXDEV : r, | |
1889 | dst_updated ?: dst, | |
1890 | info->name); | |
aa0f357f ZJS |
1891 | } |
1892 | ||
3f57bc22 | 1893 | *ret_dst = TAKE_PTR(dst_updated); |
aa0f357f ZJS |
1894 | return 0; |
1895 | } | |
1896 | ||
83096483 | 1897 | static int install_info_symlink_alias( |
4870133b | 1898 | RuntimeScope scope, |
0047d54d | 1899 | InstallInfo *info, |
c3e7fba0 | 1900 | const LookupPaths *lp, |
83096483 LP |
1901 | const char *config_path, |
1902 | bool force, | |
cd44ec5a | 1903 | InstallChange **changes, |
da6053d0 | 1904 | size_t *n_changes) { |
83096483 | 1905 | |
83096483 LP |
1906 | int r = 0, q; |
1907 | ||
4a84db4c | 1908 | assert(info); |
c3e7fba0 | 1909 | assert(lp); |
83096483 LP |
1910 | assert(config_path); |
1911 | ||
4a84db4c | 1912 | STRV_FOREACH(s, info->aliases) { |
3f57bc22 | 1913 | _cleanup_free_ char *alias_path = NULL, *dst = NULL, *dst_updated = NULL; |
c067e61b | 1914 | bool broken; |
83096483 | 1915 | |
38e8a6c7 | 1916 | q = install_name_printf(scope, info, *s, &dst); |
6ec4c852 | 1917 | if (q < 0) { |
cd44ec5a | 1918 | install_changes_add(changes, n_changes, q, *s, NULL); |
0d11db59 ZJS |
1919 | r = r < 0 ? r : q; |
1920 | continue; | |
6ec4c852 | 1921 | } |
83096483 | 1922 | |
cbfdbffb | 1923 | q = unit_file_verify_alias(info, dst, &dst_updated, changes, n_changes); |
f663e646 ZJS |
1924 | if (q == -ELOOP) |
1925 | continue; | |
0d11db59 ZJS |
1926 | if (q < 0) { |
1927 | r = r < 0 ? r : q; | |
aa0f357f | 1928 | continue; |
0d11db59 | 1929 | } |
3d0205f2 | 1930 | |
3f57bc22 | 1931 | alias_path = path_make_absolute(dst_updated ?: dst, config_path); |
83096483 LP |
1932 | if (!alias_path) |
1933 | return -ENOMEM; | |
1934 | ||
f461a28d | 1935 | q = chase(alias_path, lp->root_dir, CHASE_NONEXISTENT, NULL, NULL); |
c067e61b MY |
1936 | if (q < 0 && q != -ENOENT) { |
1937 | r = r < 0 ? r : q; | |
1938 | continue; | |
1939 | } | |
1940 | broken = q == 0; /* symlink target does not exist? */ | |
1941 | ||
1942 | q = create_symlink(lp, info->path, alias_path, force || broken, changes, n_changes); | |
0d11db59 | 1943 | r = r < 0 ? r : q; |
83096483 LP |
1944 | } |
1945 | ||
1946 | return r; | |
1947 | } | |
1948 | ||
1949 | static int install_info_symlink_wants( | |
4870133b | 1950 | RuntimeScope scope, |
9b69770a | 1951 | UnitFileFlags file_flags, |
0047d54d | 1952 | InstallInfo *info, |
c3e7fba0 | 1953 | const LookupPaths *lp, |
83096483 | 1954 | const char *config_path, |
d54c4993 LP |
1955 | char **list, |
1956 | const char *suffix, | |
cd44ec5a | 1957 | InstallChange **changes, |
da6053d0 | 1958 | size_t *n_changes) { |
83096483 | 1959 | |
acb5b834 ZJS |
1960 | _cleanup_(install_info_clear) InstallInfo instance = { |
1961 | .install_mode = _INSTALL_MODE_INVALID, | |
1962 | }; | |
1963 | ||
b0ec372a | 1964 | UnitNameFlags valid_dst_type = UNIT_NAME_ANY; |
d54c4993 | 1965 | const char *n; |
83096483 LP |
1966 | int r = 0, q; |
1967 | ||
4a84db4c | 1968 | assert(info); |
c3e7fba0 | 1969 | assert(lp); |
83096483 LP |
1970 | assert(config_path); |
1971 | ||
047d91f9 ZJS |
1972 | if (strv_isempty(list)) |
1973 | return 0; | |
1974 | ||
4a84db4c | 1975 | if (unit_name_is_valid(info->name, UNIT_NAME_PLAIN | UNIT_NAME_INSTANCE)) |
b0ec372a | 1976 | /* Not a template unit. Use the name directly. */ |
4a84db4c | 1977 | n = info->name; |
b0ec372a | 1978 | |
4a84db4c | 1979 | else if (info->default_instance) { |
b0ec372a | 1980 | /* If this is a template, and we have a default instance, use it. */ |
e4086ae0 | 1981 | |
acb5b834 | 1982 | r = unit_name_replace_instance(info->name, info->default_instance, &instance.name); |
7410616c LP |
1983 | if (r < 0) |
1984 | return r; | |
83096483 | 1985 | |
c3e7fba0 | 1986 | r = unit_file_search(NULL, &instance, lp, SEARCH_FOLLOW_CONFIG_SYMLINKS); |
047d91f9 ZJS |
1987 | if (r < 0) |
1988 | return r; | |
1989 | ||
94e7298d ZJS |
1990 | if (instance.install_mode == INSTALL_MODE_MASKED) |
1991 | return install_changes_add(changes, n_changes, -ERFKILL, instance.path, NULL); | |
047d91f9 | 1992 | |
acb5b834 | 1993 | n = instance.name; |
b0ec372a ZJS |
1994 | |
1995 | } else { | |
1996 | /* We have a template, but no instance yet. When used with an instantiated unit, we will get | |
1997 | * the instance from that unit. Cannot be used with non-instance units. */ | |
1998 | ||
1999 | valid_dst_type = UNIT_NAME_INSTANCE | UNIT_NAME_TEMPLATE; | |
4a84db4c | 2000 | n = info->name; |
b0ec372a | 2001 | } |
78d54bd4 | 2002 | |
f5a0162d | 2003 | r = 0; |
d54c4993 | 2004 | STRV_FOREACH(s, list) { |
9aa3d6b4 | 2005 | _cleanup_free_ char *path = NULL, *dst = NULL; |
78d54bd4 | 2006 | |
38e8a6c7 | 2007 | q = install_name_printf(scope, info, *s, &dst); |
f5a0162d YW |
2008 | if (q < 0) { |
2009 | install_changes_add(changes, n_changes, q, *s, NULL); | |
2010 | if (r >= 0) | |
2011 | r = q; | |
f8979e86 DT |
2012 | |
2013 | continue; | |
f5a0162d | 2014 | } |
7584d236 | 2015 | |
b0ec372a | 2016 | if (!unit_name_is_valid(dst, valid_dst_type)) { |
ad5fdd39 ZJS |
2017 | /* Generate a proper error here: EUCLEAN if the name is generally bad, EIDRM if the |
2018 | * template status doesn't match. If we are doing presets don't bother reporting the | |
2019 | * error. This also covers cases like 'systemctl preset serial-getty@.service', which | |
2020 | * has no DefaultInstance, so there is nothing we can do. At the same time, | |
2021 | * 'systemctl enable serial-getty@.service' should fail, the user should specify an | |
2022 | * instance like in 'systemctl enable serial-getty@ttyS0.service'. | |
2023 | */ | |
2024 | if (file_flags & UNIT_FILE_IGNORE_AUXILIARY_FAILURE) | |
2025 | continue; | |
2026 | ||
94e7298d | 2027 | if (unit_name_is_valid(dst, UNIT_NAME_ANY)) |
f5a0162d | 2028 | q = install_changes_add(changes, n_changes, -EIDRM, dst, n); |
94e7298d | 2029 | else |
f5a0162d YW |
2030 | q = install_changes_add(changes, n_changes, -EUCLEAN, dst, NULL); |
2031 | if (r >= 0) | |
2032 | r = q; | |
b0ec372a | 2033 | |
78d54bd4 LP |
2034 | continue; |
2035 | } | |
2036 | ||
9aa3d6b4 | 2037 | path = strjoin(config_path, "/", dst, suffix, n); |
d54c4993 | 2038 | if (!path) |
78d54bd4 LP |
2039 | return -ENOMEM; |
2040 | ||
9aa3d6b4 | 2041 | q = create_symlink(lp, info->path, path, true, changes, n_changes); |
f5a0162d | 2042 | if ((q < 0 && r >= 0) || r == 0) |
78d54bd4 | 2043 | r = q; |
8ae27441 | 2044 | |
f31f10a6 ZJS |
2045 | if (unit_file_exists(scope, lp, dst) == 0) { |
2046 | q = install_changes_add(changes, n_changes, INSTALL_CHANGE_DESTINATION_NOT_PRESENT, dst, info->path); | |
2047 | if (q < 0) | |
2048 | return q; | |
2049 | } | |
78d54bd4 LP |
2050 | } |
2051 | ||
2052 | return r; | |
2053 | } | |
2054 | ||
83096483 | 2055 | static int install_info_symlink_link( |
0047d54d | 2056 | InstallInfo *info, |
c3e7fba0 | 2057 | const LookupPaths *lp, |
83096483 LP |
2058 | const char *config_path, |
2059 | bool force, | |
cd44ec5a | 2060 | InstallChange **changes, |
da6053d0 | 2061 | size_t *n_changes) { |
83096483 | 2062 | |
7fd1b19b | 2063 | _cleanup_free_ char *path = NULL; |
1dacfd2a | 2064 | int r; |
83096483 | 2065 | |
4a84db4c | 2066 | assert(info); |
c3e7fba0 | 2067 | assert(lp); |
83096483 | 2068 | assert(config_path); |
4a84db4c | 2069 | assert(info->path); |
83096483 | 2070 | |
4a84db4c | 2071 | r = in_search_path(lp, info->path); |
fe4aede9 | 2072 | if (r < 0) |
83096483 | 2073 | return r; |
fe4aede9 ZJS |
2074 | if (r > 0) |
2075 | return 0; | |
83096483 | 2076 | |
4a84db4c | 2077 | path = path_join(config_path, info->name); |
1dacfd2a | 2078 | if (!path) |
83096483 LP |
2079 | return -ENOMEM; |
2080 | ||
4a84db4c | 2081 | return create_symlink(lp, info->path, path, force, changes, n_changes); |
83096483 LP |
2082 | } |
2083 | ||
2084 | static int install_info_apply( | |
4870133b | 2085 | RuntimeScope scope, |
9b69770a | 2086 | UnitFileFlags file_flags, |
0047d54d | 2087 | InstallInfo *info, |
c3e7fba0 | 2088 | const LookupPaths *lp, |
83096483 | 2089 | const char *config_path, |
cd44ec5a | 2090 | InstallChange **changes, |
da6053d0 | 2091 | size_t *n_changes) { |
83096483 LP |
2092 | |
2093 | int r, q; | |
2094 | ||
4a84db4c | 2095 | assert(info); |
c3e7fba0 | 2096 | assert(lp); |
83096483 LP |
2097 | assert(config_path); |
2098 | ||
91810c8f | 2099 | if (info->install_mode != INSTALL_MODE_REGULAR) |
0ec0deaa LP |
2100 | return 0; |
2101 | ||
9b69770a ZJS |
2102 | bool force = file_flags & UNIT_FILE_FORCE; |
2103 | ||
20d68b3a ZJS |
2104 | r = install_info_symlink_link(info, lp, config_path, force, changes, n_changes); |
2105 | /* Do not count links to the unit file towards the "carries_install_info" count */ | |
2106 | if (r < 0) | |
2107 | /* If linking of the file failed, do not try to create other symlinks, | |
2108 | * because they might would pointing to a non-existent or wrong unit. */ | |
2109 | return r; | |
2110 | ||
4a84db4c | 2111 | r = install_info_symlink_alias(scope, info, lp, config_path, force, changes, n_changes); |
83096483 | 2112 | |
4a84db4c | 2113 | q = install_info_symlink_wants(scope, file_flags, info, lp, config_path, info->wanted_by, ".wants/", changes, n_changes); |
83096483 LP |
2114 | if (r == 0) |
2115 | r = q; | |
2116 | ||
4a84db4c | 2117 | q = install_info_symlink_wants(scope, file_flags, info, lp, config_path, info->required_by, ".requires/", changes, n_changes); |
78d54bd4 LP |
2118 | if (r == 0) |
2119 | r = q; | |
2120 | ||
38f90179 MY |
2121 | q = install_info_symlink_wants(scope, file_flags, info, lp, config_path, info->upheld_by, ".upholds/", changes, n_changes); |
2122 | if (r == 0) | |
2123 | r = q; | |
2124 | ||
83096483 LP |
2125 | return r; |
2126 | } | |
2127 | ||
2128 | static int install_context_apply( | |
4a84db4c | 2129 | InstallContext *ctx, |
c3e7fba0 | 2130 | const LookupPaths *lp, |
4a84db4c | 2131 | UnitFileFlags file_flags, |
83096483 | 2132 | const char *config_path, |
0ec0deaa | 2133 | SearchFlags flags, |
cd44ec5a | 2134 | InstallChange **changes, |
da6053d0 | 2135 | size_t *n_changes) { |
83096483 | 2136 | |
0047d54d | 2137 | InstallInfo *i; |
0ec0deaa | 2138 | int r; |
83096483 | 2139 | |
4a84db4c | 2140 | assert(ctx); |
c3e7fba0 | 2141 | assert(lp); |
83096483 LP |
2142 | assert(config_path); |
2143 | ||
4a84db4c | 2144 | if (ordered_hashmap_isempty(ctx->will_process)) |
d25e100b | 2145 | return 0; |
83096483 | 2146 | |
4a84db4c | 2147 | r = ordered_hashmap_ensure_allocated(&ctx->have_processed, &string_hash_ops); |
d25e100b LP |
2148 | if (r < 0) |
2149 | return r; | |
83096483 | 2150 | |
2d5c93c7 | 2151 | r = 0; |
4a84db4c | 2152 | while ((i = ordered_hashmap_first(ctx->will_process))) { |
0ec0deaa | 2153 | int q; |
83096483 | 2154 | |
4a84db4c | 2155 | q = ordered_hashmap_move_one(ctx->have_processed, ctx->will_process, i->name); |
0ec0deaa LP |
2156 | if (q < 0) |
2157 | return q; | |
83096483 | 2158 | |
4a84db4c | 2159 | q = install_info_traverse(ctx, lp, i, flags, NULL); |
459500a3 | 2160 | if (q < 0) { |
3aa96361 | 2161 | if (i->auxiliary) { |
4a4af850 | 2162 | q = install_changes_add(changes, n_changes, INSTALL_CHANGE_AUXILIARY_FAILED, i->name, NULL); |
3aa96361 ZJS |
2163 | if (q < 0) |
2164 | return q; | |
2165 | continue; | |
2166 | } | |
2167 | ||
94e7298d | 2168 | return install_changes_add(changes, n_changes, q, i->name, NULL); |
db093eed | 2169 | } |
0ec0deaa | 2170 | |
f1651715 | 2171 | /* We can attempt to process a masked unit when a different unit |
047d91f9 | 2172 | * that we were processing specifies it in Also=. */ |
91810c8f | 2173 | if (i->install_mode == INSTALL_MODE_MASKED) { |
f31f10a6 ZJS |
2174 | q = install_changes_add(changes, n_changes, INSTALL_CHANGE_IS_MASKED, i->path, NULL); |
2175 | if (q < 0) | |
2176 | return q; | |
f1651715 | 2177 | if (r >= 0) |
047d91f9 ZJS |
2178 | /* Assume that something *could* have been enabled here, |
2179 | * avoid "empty [Install] section" warning. */ | |
f1651715 ZJS |
2180 | r += 1; |
2181 | continue; | |
2182 | } | |
2183 | ||
91810c8f | 2184 | if (i->install_mode != INSTALL_MODE_REGULAR) |
0ec0deaa | 2185 | continue; |
83096483 | 2186 | |
4a84db4c | 2187 | q = install_info_apply(ctx->scope, file_flags, i, lp, config_path, changes, n_changes); |
0ec0deaa LP |
2188 | if (r >= 0) { |
2189 | if (q < 0) | |
2190 | r = q; | |
2191 | else | |
596fc263 | 2192 | r += q; |
0ec0deaa | 2193 | } |
83096483 LP |
2194 | } |
2195 | ||
2196 | return r; | |
2197 | } | |
2198 | ||
2199 | static int install_context_mark_for_removal( | |
4a84db4c | 2200 | InstallContext *ctx, |
c3e7fba0 | 2201 | const LookupPaths *lp, |
83096483 | 2202 | Set **remove_symlinks_to, |
1830ac51 | 2203 | const char *config_path, |
cd44ec5a | 2204 | InstallChange **changes, |
da6053d0 | 2205 | size_t *n_changes) { |
83096483 | 2206 | |
0047d54d | 2207 | InstallInfo *i; |
0ec0deaa | 2208 | int r; |
83096483 | 2209 | |
4a84db4c | 2210 | assert(ctx); |
c3e7fba0 | 2211 | assert(lp); |
1830ac51 | 2212 | assert(config_path); |
83096483 LP |
2213 | |
2214 | /* Marks all items for removal */ | |
2215 | ||
4a84db4c | 2216 | if (ordered_hashmap_isempty(ctx->will_process)) |
d25e100b | 2217 | return 0; |
83096483 | 2218 | |
4a84db4c | 2219 | r = ordered_hashmap_ensure_allocated(&ctx->have_processed, &string_hash_ops); |
d25e100b LP |
2220 | if (r < 0) |
2221 | return r; | |
83096483 | 2222 | |
4a84db4c | 2223 | while ((i = ordered_hashmap_first(ctx->will_process))) { |
83096483 | 2224 | |
4a84db4c | 2225 | r = ordered_hashmap_move_one(ctx->have_processed, ctx->will_process, i->name); |
0ec0deaa | 2226 | if (r < 0) |
83096483 | 2227 | return r; |
29283ea4 | 2228 | |
4a84db4c | 2229 | r = install_info_traverse(ctx, lp, i, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS, NULL); |
19539807 | 2230 | if (r == -ENOLINK) { |
637d6e5b | 2231 | log_debug_errno(r, "Name %s leads to a dangling symlink, removing name.", i->name); |
f31f10a6 ZJS |
2232 | r = install_changes_add(changes, n_changes, INSTALL_CHANGE_IS_DANGLING, i->path ?: i->name, NULL); |
2233 | if (r < 0) | |
2234 | return r; | |
637d6e5b | 2235 | } else if (r == -ENOENT) { |
637d6e5b LP |
2236 | if (i->auxiliary) /* some unit specified in Also= or similar is missing */ |
2237 | log_debug_errno(r, "Auxiliary unit of %s not found, removing name.", i->name); | |
2238 | else { | |
2239 | log_debug_errno(r, "Unit %s not found, removing name.", i->name); | |
f31f10a6 ZJS |
2240 | r = install_changes_add(changes, n_changes, r, i->path ?: i->name, NULL); |
2241 | if (r < 0) | |
2242 | return r; | |
637d6e5b | 2243 | } |
637d6e5b LP |
2244 | } else if (r < 0) { |
2245 | log_debug_errno(r, "Failed to find unit %s, removing name: %m", i->name); | |
cd44ec5a | 2246 | install_changes_add(changes, n_changes, r, i->path ?: i->name, NULL); |
91810c8f | 2247 | } else if (i->install_mode == INSTALL_MODE_MASKED) { |
637d6e5b | 2248 | log_debug("Unit file %s is masked, ignoring.", i->name); |
1308f72e | 2249 | install_changes_add(changes, n_changes, INSTALL_CHANGE_IS_MASKED, i->path ?: i->name, NULL); |
637d6e5b | 2250 | continue; |
91810c8f ZJS |
2251 | } else if (i->install_mode != INSTALL_MODE_REGULAR) { |
2252 | log_debug("Unit %s has install mode %s, ignoring.", | |
2253 | i->name, install_mode_to_string(i->install_mode) ?: "invalid"); | |
0ec0deaa | 2254 | continue; |
64f9280e | 2255 | } |
0ec0deaa LP |
2256 | |
2257 | r = mark_symlink_for_removal(remove_symlinks_to, i->name); | |
2258 | if (r < 0) | |
2259 | return r; | |
2260 | } | |
2261 | ||
2262 | return 0; | |
2263 | } | |
2264 | ||
2265 | int unit_file_mask( | |
4870133b | 2266 | RuntimeScope scope, |
b3796dd8 | 2267 | UnitFileFlags flags, |
0ec0deaa | 2268 | const char *root_dir, |
0f87041f | 2269 | char **names, |
cd44ec5a | 2270 | InstallChange **changes, |
da6053d0 | 2271 | size_t *n_changes) { |
0ec0deaa | 2272 | |
c3e7fba0 | 2273 | _cleanup_(lookup_paths_free) LookupPaths lp = {}; |
e1c5c2b0 | 2274 | const char *config_path; |
0ec0deaa LP |
2275 | int r; |
2276 | ||
2277 | assert(scope >= 0); | |
4870133b | 2278 | assert(scope < _RUNTIME_SCOPE_MAX); |
0ec0deaa | 2279 | |
c3e7fba0 | 2280 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
0ec0deaa LP |
2281 | if (r < 0) |
2282 | return r; | |
2283 | ||
c3e7fba0 | 2284 | config_path = (flags & UNIT_FILE_RUNTIME) ? lp.runtime_config : lp.persistent_config; |
d0fd66a3 LP |
2285 | if (!config_path) |
2286 | return -ENXIO; | |
e1c5c2b0 | 2287 | |
0f87041f | 2288 | STRV_FOREACH(name, names) { |
0ec0deaa LP |
2289 | _cleanup_free_ char *path = NULL; |
2290 | int q; | |
2291 | ||
0f87041f | 2292 | if (!unit_name_is_valid(*name, UNIT_NAME_ANY)) { |
0ec0deaa LP |
2293 | if (r == 0) |
2294 | r = -EINVAL; | |
2295 | continue; | |
2296 | } | |
2297 | ||
0f87041f | 2298 | path = path_make_absolute(*name, config_path); |
0ec0deaa LP |
2299 | if (!path) |
2300 | return -ENOMEM; | |
29283ea4 | 2301 | |
d3e85c9c | 2302 | q = create_symlink(&lp, "/dev/null", path, flags & UNIT_FILE_FORCE, changes, n_changes); |
0ec0deaa | 2303 | if (q < 0 && r >= 0) |
83096483 LP |
2304 | r = q; |
2305 | } | |
2306 | ||
2307 | return r; | |
2308 | } | |
2309 | ||
0ec0deaa | 2310 | int unit_file_unmask( |
4870133b | 2311 | RuntimeScope scope, |
b3796dd8 | 2312 | UnitFileFlags flags, |
0ec0deaa | 2313 | const char *root_dir, |
0f87041f | 2314 | char **names, |
cd44ec5a | 2315 | InstallChange **changes, |
da6053d0 | 2316 | size_t *n_changes) { |
0ec0deaa | 2317 | |
c3e7fba0 | 2318 | _cleanup_(lookup_paths_free) LookupPaths lp = {}; |
0ec0deaa | 2319 | _cleanup_set_free_free_ Set *remove_symlinks_to = NULL; |
dc7dd61d | 2320 | _cleanup_strv_free_ char **todo = NULL; |
e1c5c2b0 | 2321 | const char *config_path; |
319a4f4b | 2322 | size_t n_todo = 0; |
0ec0deaa LP |
2323 | int r, q; |
2324 | ||
2325 | assert(scope >= 0); | |
4870133b | 2326 | assert(scope < _RUNTIME_SCOPE_MAX); |
0ec0deaa | 2327 | |
c3e7fba0 | 2328 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
0ec0deaa LP |
2329 | if (r < 0) |
2330 | return r; | |
2331 | ||
c3e7fba0 | 2332 | config_path = (flags & UNIT_FILE_RUNTIME) ? lp.runtime_config : lp.persistent_config; |
1830ac51 MB |
2333 | if (!config_path) |
2334 | return -ENXIO; | |
2335 | ||
d3e85c9c | 2336 | bool dry_run = flags & UNIT_FILE_DRY_RUN; |
1830ac51 | 2337 | |
0f87041f | 2338 | STRV_FOREACH(name, names) { |
0f87041f | 2339 | if (!unit_name_is_valid(*name, UNIT_NAME_ANY)) |
0ec0deaa LP |
2340 | return -EINVAL; |
2341 | ||
bf3b0d5f ZJS |
2342 | /* If root_dir is set, we don't care about kernel commandline or generators. |
2343 | * But if it is not set, we need to check for interference. */ | |
2344 | if (!root_dir) { | |
2345 | _cleanup_(install_info_clear) InstallInfo info = { | |
2346 | .name = *name, /* We borrow *name temporarily… */ | |
2347 | .install_mode = _INSTALL_MODE_INVALID, | |
2348 | }; | |
2349 | ||
2350 | r = unit_file_search(NULL, &info, &lp, 0); | |
2351 | if (r < 0) { | |
2352 | if (r != -ENOENT) | |
2353 | log_debug_errno(r, "Failed to look up unit %s, ignoring: %m", info.name); | |
f31f10a6 ZJS |
2354 | } else if (info.install_mode == INSTALL_MODE_MASKED && |
2355 | path_is_generator(&lp, info.path)) { | |
2356 | r = install_changes_add(changes, n_changes, | |
2357 | INSTALL_CHANGE_IS_MASKED_GENERATOR, info.name, info.path); | |
2358 | if (r < 0) | |
2359 | return r; | |
bf3b0d5f ZJS |
2360 | } |
2361 | ||
2362 | TAKE_PTR(info.name); /* … and give it back here */ | |
2363 | } | |
2364 | ||
2365 | _cleanup_free_ char *path = path_make_absolute(*name, config_path); | |
1830ac51 MB |
2366 | if (!path) |
2367 | return -ENOMEM; | |
0ec0deaa | 2368 | |
1830ac51 MB |
2369 | r = null_or_empty_path(path); |
2370 | if (r == -ENOENT) | |
2371 | continue; | |
2372 | if (r < 0) | |
2373 | return r; | |
2374 | if (r == 0) | |
2375 | continue; | |
0ec0deaa | 2376 | |
319a4f4b | 2377 | if (!GREEDY_REALLOC0(todo, n_todo + 2)) |
1830ac51 | 2378 | return -ENOMEM; |
d054eae6 | 2379 | |
0f87041f | 2380 | todo[n_todo] = strdup(*name); |
1830ac51 MB |
2381 | if (!todo[n_todo]) |
2382 | return -ENOMEM; | |
4910b350 | 2383 | |
1830ac51 | 2384 | n_todo++; |
0ec0deaa LP |
2385 | } |
2386 | ||
2387 | strv_uniq(todo); | |
2388 | ||
2389 | r = 0; | |
1830ac51 MB |
2390 | STRV_FOREACH(i, todo) { |
2391 | _cleanup_free_ char *path = NULL; | |
2392 | const char *rp; | |
0ec0deaa | 2393 | |
1830ac51 MB |
2394 | path = path_make_absolute(*i, config_path); |
2395 | if (!path) | |
2396 | return -ENOMEM; | |
4910b350 | 2397 | |
1830ac51 MB |
2398 | if (!dry_run && unlink(path) < 0) { |
2399 | if (errno != ENOENT) { | |
2400 | if (r >= 0) | |
2401 | r = -errno; | |
cd44ec5a | 2402 | install_changes_add(changes, n_changes, -errno, path, NULL); |
af3d8113 | 2403 | } |
0ec0deaa | 2404 | |
1830ac51 | 2405 | continue; |
4910b350 | 2406 | } |
401017e0 | 2407 | |
f31f10a6 ZJS |
2408 | q = install_changes_add(changes, n_changes, INSTALL_CHANGE_UNLINK, path, NULL); |
2409 | if (q < 0) | |
2410 | return q; | |
1830ac51 | 2411 | |
c3e7fba0 | 2412 | rp = skip_root(lp.root_dir, path); |
1830ac51 MB |
2413 | q = mark_symlink_for_removal(&remove_symlinks_to, rp ?: path); |
2414 | if (q < 0) | |
2415 | return q; | |
0ec0deaa LP |
2416 | } |
2417 | ||
c3e7fba0 | 2418 | q = remove_marked_symlinks(remove_symlinks_to, config_path, &lp, dry_run, changes, n_changes); |
1830ac51 MB |
2419 | if (r >= 0) |
2420 | r = q; | |
2421 | ||
0ec0deaa LP |
2422 | return r; |
2423 | } | |
2424 | ||
2425 | int unit_file_link( | |
4870133b | 2426 | RuntimeScope scope, |
b3796dd8 | 2427 | UnitFileFlags flags, |
e94937df LN |
2428 | const char *root_dir, |
2429 | char **files, | |
cd44ec5a | 2430 | InstallChange **changes, |
da6053d0 | 2431 | size_t *n_changes) { |
e94937df | 2432 | |
c3e7fba0 | 2433 | _cleanup_(lookup_paths_free) LookupPaths lp = {}; |
8af35ba6 | 2434 | _cleanup_strv_free_ char **todo = NULL; |
e1c5c2b0 | 2435 | const char *config_path; |
319a4f4b | 2436 | size_t n_todo = 0; |
0ec0deaa | 2437 | int r, q; |
e94937df LN |
2438 | |
2439 | assert(scope >= 0); | |
4870133b | 2440 | assert(scope < _RUNTIME_SCOPE_MAX); |
e94937df | 2441 | |
c3e7fba0 | 2442 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
e94937df LN |
2443 | if (r < 0) |
2444 | return r; | |
2445 | ||
c3e7fba0 | 2446 | config_path = (flags & UNIT_FILE_RUNTIME) ? lp.runtime_config : lp.persistent_config; |
d0fd66a3 LP |
2447 | if (!config_path) |
2448 | return -ENXIO; | |
e94937df | 2449 | |
0f87041f | 2450 | STRV_FOREACH(file, files) { |
0ec0deaa LP |
2451 | _cleanup_free_ char *full = NULL; |
2452 | struct stat st; | |
2453 | char *fn; | |
e94937df | 2454 | |
0f87041f | 2455 | if (!path_is_absolute(*file)) |
81de6962 | 2456 | return install_changes_add(changes, n_changes, -EINVAL, *file, NULL); |
e94937df | 2457 | |
0f87041f | 2458 | fn = basename(*file); |
0ec0deaa | 2459 | if (!unit_name_is_valid(fn, UNIT_NAME_ANY)) |
81de6962 | 2460 | return install_changes_add(changes, n_changes, -EUCLEAN, *file, NULL); |
0ec0deaa | 2461 | |
0f87041f | 2462 | full = path_join(lp.root_dir, *file); |
0ec0deaa LP |
2463 | if (!full) |
2464 | return -ENOMEM; | |
2465 | ||
2466 | if (lstat(full, &st) < 0) | |
81de6962 ZJS |
2467 | return install_changes_add(changes, n_changes, -errno, *file, NULL); |
2468 | ||
3cc44114 LP |
2469 | r = stat_verify_regular(&st); |
2470 | if (r < 0) | |
81de6962 | 2471 | return install_changes_add(changes, n_changes, r, *file, NULL); |
0ec0deaa | 2472 | |
81de6962 ZJS |
2473 | r = in_search_path(&lp, *file); |
2474 | if (r < 0) | |
2475 | return install_changes_add(changes, n_changes, r, *file, NULL); | |
2476 | if (r > 0) | |
a6f318a5 | 2477 | /* A silent noop if the file is already in the search path. */ |
0ec0deaa LP |
2478 | continue; |
2479 | ||
a6f318a5 ZJS |
2480 | r = underneath_search_path(&lp, *file); |
2481 | if (r > 0) | |
2482 | r = -ETXTBSY; | |
2483 | if (r < 0) | |
2484 | return install_changes_add(changes, n_changes, r, *file, NULL); | |
2485 | ||
319a4f4b | 2486 | if (!GREEDY_REALLOC0(todo, n_todo + 2)) |
0ec0deaa LP |
2487 | return -ENOMEM; |
2488 | ||
0f87041f | 2489 | todo[n_todo] = strdup(*file); |
8af35ba6 EV |
2490 | if (!todo[n_todo]) |
2491 | return -ENOMEM; | |
2492 | ||
2493 | n_todo++; | |
e94937df LN |
2494 | } |
2495 | ||
0ec0deaa | 2496 | strv_uniq(todo); |
e94937df | 2497 | |
0ec0deaa LP |
2498 | r = 0; |
2499 | STRV_FOREACH(i, todo) { | |
401017e0 | 2500 | _cleanup_free_ char *new_path = NULL; |
0ec0deaa | 2501 | |
401017e0 LP |
2502 | new_path = path_make_absolute(basename(*i), config_path); |
2503 | if (!new_path) | |
0ec0deaa LP |
2504 | return -ENOMEM; |
2505 | ||
d3e85c9c | 2506 | q = create_symlink(&lp, *i, new_path, flags & UNIT_FILE_FORCE, changes, n_changes); |
0ec0deaa LP |
2507 | if (q < 0 && r >= 0) |
2508 | r = q; | |
2d5c93c7 MS |
2509 | } |
2510 | ||
0ec0deaa LP |
2511 | return r; |
2512 | } | |
2513 | ||
c3e7fba0 | 2514 | static int path_shall_revert(const LookupPaths *lp, const char *path) { |
344ca755 LP |
2515 | int r; |
2516 | ||
c3e7fba0 | 2517 | assert(lp); |
344ca755 LP |
2518 | assert(path); |
2519 | ||
2520 | /* Checks whether the path is one where the drop-in directories shall be removed. */ | |
2521 | ||
c3e7fba0 | 2522 | r = path_is_config(lp, path, true); |
344ca755 LP |
2523 | if (r != 0) |
2524 | return r; | |
2525 | ||
c3e7fba0 | 2526 | r = path_is_control(lp, path); |
344ca755 LP |
2527 | if (r != 0) |
2528 | return r; | |
2529 | ||
c3e7fba0 | 2530 | return path_is_transient(lp, path); |
344ca755 LP |
2531 | } |
2532 | ||
2533 | int unit_file_revert( | |
4870133b | 2534 | RuntimeScope scope, |
344ca755 | 2535 | const char *root_dir, |
0f87041f | 2536 | char **names, |
cd44ec5a | 2537 | InstallChange **changes, |
da6053d0 | 2538 | size_t *n_changes) { |
344ca755 LP |
2539 | |
2540 | _cleanup_set_free_free_ Set *remove_symlinks_to = NULL; | |
c3e7fba0 | 2541 | _cleanup_(lookup_paths_free) LookupPaths lp = {}; |
344ca755 | 2542 | _cleanup_strv_free_ char **todo = NULL; |
319a4f4b | 2543 | size_t n_todo = 0; |
344ca755 LP |
2544 | int r, q; |
2545 | ||
2546 | /* Puts a unit file back into vendor state. This means: | |
2547 | * | |
0f87041f ZJS |
2548 | * a) we remove all drop-in snippets added by the user ("config"), add to transient units |
2549 | * ("transient"), and added via "systemctl set-property" ("control"), but not if the drop-in is | |
2550 | * generated ("generated"). | |
344ca755 | 2551 | * |
0f87041f ZJS |
2552 | * c) if there's a vendor unit file (i.e. one in /usr) we remove any configured overriding unit files |
2553 | * (i.e. in "config", but not in "transient" or "control" or even "generated"). | |
344ca755 | 2554 | * |
4f25723c | 2555 | * We remove all that in both the runtime and the persistent directories, if that applies. |
344ca755 LP |
2556 | */ |
2557 | ||
c3e7fba0 | 2558 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
344ca755 LP |
2559 | if (r < 0) |
2560 | return r; | |
2561 | ||
0f87041f | 2562 | STRV_FOREACH(name, names) { |
344ca755 | 2563 | bool has_vendor = false; |
344ca755 | 2564 | |
0f87041f | 2565 | if (!unit_name_is_valid(*name, UNIT_NAME_ANY)) |
344ca755 LP |
2566 | return -EINVAL; |
2567 | ||
c3e7fba0 | 2568 | STRV_FOREACH(p, lp.search_path) { |
344ca755 LP |
2569 | _cleanup_free_ char *path = NULL, *dropin = NULL; |
2570 | struct stat st; | |
2571 | ||
0f87041f | 2572 | path = path_make_absolute(*name, *p); |
344ca755 LP |
2573 | if (!path) |
2574 | return -ENOMEM; | |
2575 | ||
81de6962 | 2576 | r = RET_NERRNO(lstat(path, &st)); |
344ca755 | 2577 | if (r < 0) { |
81de6962 ZJS |
2578 | if (r != -ENOENT) |
2579 | return install_changes_add(changes, n_changes, r, path, NULL); | |
344ca755 LP |
2580 | } else if (S_ISREG(st.st_mode)) { |
2581 | /* Check if there's a vendor version */ | |
c3e7fba0 | 2582 | r = path_is_vendor_or_generator(&lp, path); |
344ca755 | 2583 | if (r < 0) |
81de6962 | 2584 | return install_changes_add(changes, n_changes, r, path, NULL); |
344ca755 LP |
2585 | if (r > 0) |
2586 | has_vendor = true; | |
2587 | } | |
2588 | ||
b910cc72 | 2589 | dropin = strjoin(path, ".d"); |
344ca755 LP |
2590 | if (!dropin) |
2591 | return -ENOMEM; | |
2592 | ||
81de6962 | 2593 | r = RET_NERRNO(lstat(dropin, &st)); |
344ca755 | 2594 | if (r < 0) { |
81de6962 ZJS |
2595 | if (r != -ENOENT) |
2596 | return install_changes_add(changes, n_changes, r, dropin, NULL); | |
344ca755 LP |
2597 | } else if (S_ISDIR(st.st_mode)) { |
2598 | /* Remove the drop-ins */ | |
c3e7fba0 | 2599 | r = path_shall_revert(&lp, dropin); |
344ca755 | 2600 | if (r < 0) |
81de6962 | 2601 | return install_changes_add(changes, n_changes, r, dropin, NULL); |
344ca755 | 2602 | if (r > 0) { |
319a4f4b | 2603 | if (!GREEDY_REALLOC0(todo, n_todo + 2)) |
344ca755 LP |
2604 | return -ENOMEM; |
2605 | ||
1cc6c93a | 2606 | todo[n_todo++] = TAKE_PTR(dropin); |
344ca755 LP |
2607 | } |
2608 | } | |
2609 | } | |
2610 | ||
2611 | if (!has_vendor) | |
2612 | continue; | |
2613 | ||
2614 | /* OK, there's a vendor version, hence drop all configuration versions */ | |
c3e7fba0 | 2615 | STRV_FOREACH(p, lp.search_path) { |
344ca755 LP |
2616 | _cleanup_free_ char *path = NULL; |
2617 | struct stat st; | |
2618 | ||
0f87041f | 2619 | path = path_make_absolute(*name, *p); |
344ca755 LP |
2620 | if (!path) |
2621 | return -ENOMEM; | |
2622 | ||
81de6962 | 2623 | r = RET_NERRNO(lstat(path, &st)); |
344ca755 | 2624 | if (r < 0) { |
81de6962 ZJS |
2625 | if (r != -ENOENT) |
2626 | return install_changes_add(changes, n_changes, r, path, NULL); | |
344ca755 | 2627 | } else if (S_ISREG(st.st_mode) || S_ISLNK(st.st_mode)) { |
c3e7fba0 | 2628 | r = path_is_config(&lp, path, true); |
344ca755 | 2629 | if (r < 0) |
81de6962 | 2630 | return install_changes_add(changes, n_changes, r, path, NULL); |
344ca755 | 2631 | if (r > 0) { |
319a4f4b | 2632 | if (!GREEDY_REALLOC0(todo, n_todo + 2)) |
344ca755 LP |
2633 | return -ENOMEM; |
2634 | ||
1cc6c93a | 2635 | todo[n_todo++] = TAKE_PTR(path); |
344ca755 LP |
2636 | } |
2637 | } | |
2638 | } | |
2639 | } | |
2640 | ||
2641 | strv_uniq(todo); | |
2642 | ||
2643 | r = 0; | |
2644 | STRV_FOREACH(i, todo) { | |
2645 | _cleanup_strv_free_ char **fs = NULL; | |
2646 | const char *rp; | |
344ca755 LP |
2647 | |
2648 | (void) get_files_in_directory(*i, &fs); | |
2649 | ||
2650 | q = rm_rf(*i, REMOVE_ROOT|REMOVE_PHYSICAL); | |
2651 | if (q < 0 && q != -ENOENT && r >= 0) { | |
2652 | r = q; | |
2653 | continue; | |
2654 | } | |
2655 | ||
2656 | STRV_FOREACH(j, fs) { | |
2657 | _cleanup_free_ char *t = NULL; | |
2658 | ||
657ee2d8 | 2659 | t = path_join(*i, *j); |
344ca755 LP |
2660 | if (!t) |
2661 | return -ENOMEM; | |
2662 | ||
f31f10a6 ZJS |
2663 | q = install_changes_add(changes, n_changes, INSTALL_CHANGE_UNLINK, t, NULL); |
2664 | if (q < 0) | |
2665 | return q; | |
344ca755 LP |
2666 | } |
2667 | ||
f31f10a6 ZJS |
2668 | q = install_changes_add(changes, n_changes, INSTALL_CHANGE_UNLINK, *i, NULL); |
2669 | if (q < 0) | |
2670 | return q; | |
344ca755 | 2671 | |
c3e7fba0 | 2672 | rp = skip_root(lp.root_dir, *i); |
344ca755 LP |
2673 | q = mark_symlink_for_removal(&remove_symlinks_to, rp ?: *i); |
2674 | if (q < 0) | |
2675 | return q; | |
2676 | } | |
2677 | ||
c3e7fba0 | 2678 | q = remove_marked_symlinks(remove_symlinks_to, lp.runtime_config, &lp, false, changes, n_changes); |
344ca755 LP |
2679 | if (r >= 0) |
2680 | r = q; | |
2681 | ||
c3e7fba0 | 2682 | q = remove_marked_symlinks(remove_symlinks_to, lp.persistent_config, &lp, false, changes, n_changes); |
344ca755 LP |
2683 | if (r >= 0) |
2684 | r = q; | |
2685 | ||
2686 | return r; | |
2687 | } | |
2688 | ||
0ec0deaa | 2689 | int unit_file_add_dependency( |
4870133b | 2690 | RuntimeScope scope, |
9b69770a | 2691 | UnitFileFlags file_flags, |
0ec0deaa | 2692 | const char *root_dir, |
0f87041f | 2693 | char **names, |
0ec0deaa LP |
2694 | const char *target, |
2695 | UnitDependency dep, | |
cd44ec5a | 2696 | InstallChange **changes, |
da6053d0 | 2697 | size_t *n_changes) { |
0ec0deaa | 2698 | |
c3e7fba0 | 2699 | _cleanup_(lookup_paths_free) LookupPaths lp = {}; |
4a84db4c | 2700 | _cleanup_(install_context_done) InstallContext ctx = { .scope = scope }; |
0047d54d | 2701 | InstallInfo *info, *target_info; |
e1c5c2b0 | 2702 | const char *config_path; |
0ec0deaa LP |
2703 | int r; |
2704 | ||
2705 | assert(scope >= 0); | |
4870133b | 2706 | assert(scope < _RUNTIME_SCOPE_MAX); |
0ec0deaa | 2707 | assert(target); |
81de6962 | 2708 | assert(IN_SET(dep, UNIT_WANTS, UNIT_REQUIRES)); |
0ec0deaa LP |
2709 | |
2710 | if (!unit_name_is_valid(target, UNIT_NAME_ANY)) | |
81de6962 | 2711 | return install_changes_add(changes, n_changes, -EUCLEAN, target, NULL); |
0ec0deaa | 2712 | |
c3e7fba0 | 2713 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
0ec0deaa LP |
2714 | if (r < 0) |
2715 | return r; | |
2716 | ||
c3e7fba0 | 2717 | config_path = (file_flags & UNIT_FILE_RUNTIME) ? lp.runtime_config : lp.persistent_config; |
d0fd66a3 LP |
2718 | if (!config_path) |
2719 | return -ENXIO; | |
0ec0deaa | 2720 | |
4a84db4c | 2721 | r = install_info_discover_and_check(&ctx, &lp, target, SEARCH_FOLLOW_CONFIG_SYMLINKS, |
1e475a0a | 2722 | &target_info, changes, n_changes); |
76adb5b8 LP |
2723 | if (r < 0) |
2724 | return r; | |
0ec0deaa | 2725 | |
91810c8f | 2726 | assert(target_info->install_mode == INSTALL_MODE_REGULAR); |
e94937df | 2727 | |
0f87041f | 2728 | STRV_FOREACH(name, names) { |
0ec0deaa LP |
2729 | char ***l; |
2730 | ||
0f87041f ZJS |
2731 | r = install_info_discover_and_check(&ctx, &lp, *name, |
2732 | SEARCH_FOLLOW_CONFIG_SYMLINKS, | |
4a84db4c | 2733 | &info, changes, n_changes); |
76adb5b8 LP |
2734 | if (r < 0) |
2735 | return r; | |
0ec0deaa | 2736 | |
91810c8f | 2737 | assert(info->install_mode == INSTALL_MODE_REGULAR); |
0ec0deaa LP |
2738 | |
2739 | /* We didn't actually load anything from the unit | |
2740 | * file, but instead just add in our new symlink to | |
2741 | * create. */ | |
e94937df LN |
2742 | |
2743 | if (dep == UNIT_WANTS) | |
4a84db4c | 2744 | l = &info->wanted_by; |
38f90179 | 2745 | else if (dep == UNIT_REQUIRES) |
4a84db4c | 2746 | l = &info->required_by; |
38f90179 MY |
2747 | else |
2748 | l = &info->upheld_by; | |
e94937df | 2749 | |
0ec0deaa | 2750 | strv_free(*l); |
bea1a013 | 2751 | *l = strv_new(target_info->name); |
0ec0deaa LP |
2752 | if (!*l) |
2753 | return -ENOMEM; | |
e94937df LN |
2754 | } |
2755 | ||
4a84db4c | 2756 | return install_context_apply(&ctx, &lp, file_flags, config_path, |
9b69770a | 2757 | SEARCH_FOLLOW_CONFIG_SYMLINKS, changes, n_changes); |
e94937df LN |
2758 | } |
2759 | ||
ec7eaff3 ZJS |
2760 | static int do_unit_file_enable( |
2761 | const LookupPaths *lp, | |
4870133b | 2762 | RuntimeScope scope, |
ec7eaff3 ZJS |
2763 | UnitFileFlags flags, |
2764 | const char *config_path, | |
0f87041f | 2765 | char **names_or_paths, |
cd44ec5a | 2766 | InstallChange **changes, |
da6053d0 | 2767 | size_t *n_changes) { |
83096483 | 2768 | |
4a84db4c | 2769 | _cleanup_(install_context_done) InstallContext ctx = { .scope = scope }; |
0047d54d | 2770 | InstallInfo *info; |
83096483 LP |
2771 | int r; |
2772 | ||
0f87041f ZJS |
2773 | STRV_FOREACH(name, names_or_paths) { |
2774 | r = install_info_discover_and_check(&ctx, lp, *name, | |
2775 | SEARCH_LOAD | SEARCH_FOLLOW_CONFIG_SYMLINKS, | |
4a84db4c | 2776 | &info, changes, n_changes); |
76adb5b8 LP |
2777 | if (r < 0) |
2778 | return r; | |
0ec0deaa | 2779 | |
91810c8f | 2780 | assert(info->install_mode == INSTALL_MODE_REGULAR); |
83096483 LP |
2781 | } |
2782 | ||
729e3769 | 2783 | /* This will return the number of symlink rules that were |
d25e100b | 2784 | supposed to be created, not the ones actually created. This |
0f87041f | 2785 | is useful to determine whether the passed units had any |
d25e100b | 2786 | installation data at all. */ |
b91a3b02 | 2787 | |
ec7eaff3 | 2788 | return install_context_apply(&ctx, lp, flags, config_path, |
4a84db4c | 2789 | SEARCH_LOAD, changes, n_changes); |
83096483 LP |
2790 | } |
2791 | ||
ec7eaff3 | 2792 | int unit_file_enable( |
4870133b | 2793 | RuntimeScope scope, |
b3796dd8 | 2794 | UnitFileFlags flags, |
83096483 | 2795 | const char *root_dir, |
0f87041f | 2796 | char **names_or_paths, |
cd44ec5a | 2797 | InstallChange **changes, |
da6053d0 | 2798 | size_t *n_changes) { |
83096483 | 2799 | |
c3e7fba0 | 2800 | _cleanup_(lookup_paths_free) LookupPaths lp = {}; |
0ec0deaa | 2801 | int r; |
83096483 LP |
2802 | |
2803 | assert(scope >= 0); | |
4870133b | 2804 | assert(scope < _RUNTIME_SCOPE_MAX); |
83096483 | 2805 | |
c3e7fba0 | 2806 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
83096483 LP |
2807 | if (r < 0) |
2808 | return r; | |
2809 | ||
ec7eaff3 | 2810 | const char *config_path = config_path_from_flags(&lp, flags); |
1830ac51 MB |
2811 | if (!config_path) |
2812 | return -ENXIO; | |
2813 | ||
0f87041f | 2814 | return do_unit_file_enable(&lp, scope, flags, config_path, names_or_paths, changes, n_changes); |
ec7eaff3 ZJS |
2815 | } |
2816 | ||
2817 | static int do_unit_file_disable( | |
2818 | const LookupPaths *lp, | |
4870133b | 2819 | RuntimeScope scope, |
ec7eaff3 ZJS |
2820 | UnitFileFlags flags, |
2821 | const char *config_path, | |
0f87041f | 2822 | char **names, |
cd44ec5a | 2823 | InstallChange **changes, |
ec7eaff3 ZJS |
2824 | size_t *n_changes) { |
2825 | ||
2826 | _cleanup_(install_context_done) InstallContext ctx = { .scope = scope }; | |
2827 | _cleanup_set_free_free_ Set *remove_symlinks_to = NULL; | |
bf1bea43 MY |
2828 | InstallInfo *info; |
2829 | bool has_install_info = false; | |
ec7eaff3 ZJS |
2830 | int r; |
2831 | ||
0f87041f ZJS |
2832 | STRV_FOREACH(name, names) { |
2833 | if (!unit_name_is_valid(*name, UNIT_NAME_ANY)) | |
81de6962 | 2834 | return install_changes_add(changes, n_changes, -EUCLEAN, *name, NULL); |
0ec0deaa | 2835 | |
bf1bea43 MY |
2836 | r = install_info_add(&ctx, *name, NULL, lp->root_dir, /* auxiliary= */ false, &info); |
2837 | if (r >= 0) | |
2838 | r = install_info_traverse(&ctx, lp, info, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS, NULL); | |
2839 | ||
83096483 | 2840 | if (r < 0) |
bf1bea43 MY |
2841 | return install_changes_add(changes, n_changes, r, *name, NULL); |
2842 | ||
2843 | /* If we enable multiple units, some with install info and others without, | |
2844 | * the "empty [Install] section" warning is not shown. Let's make the behavior | |
2845 | * of disable align with that. */ | |
2846 | has_install_info = has_install_info || install_info_has_rules(info) || install_info_has_also(info); | |
83096483 LP |
2847 | } |
2848 | ||
ec7eaff3 | 2849 | r = install_context_mark_for_removal(&ctx, lp, &remove_symlinks_to, config_path, changes, n_changes); |
bf1bea43 MY |
2850 | if (r >= 0) |
2851 | r = remove_marked_symlinks(remove_symlinks_to, config_path, lp, flags & UNIT_FILE_DRY_RUN, changes, n_changes); | |
2852 | ||
0ec0deaa LP |
2853 | if (r < 0) |
2854 | return r; | |
83096483 | 2855 | |
bf1bea43 MY |
2856 | /* The warning is shown only if it's a no-op */ |
2857 | return install_changes_have_modification(*changes, *n_changes) || has_install_info; | |
83096483 LP |
2858 | } |
2859 | ||
ec7eaff3 | 2860 | int unit_file_disable( |
4870133b | 2861 | RuntimeScope scope, |
b3796dd8 | 2862 | UnitFileFlags flags, |
83096483 | 2863 | const char *root_dir, |
7195aa42 | 2864 | char **files, |
cd44ec5a | 2865 | InstallChange **changes, |
da6053d0 | 2866 | size_t *n_changes) { |
0ec0deaa | 2867 | |
ec7eaff3 | 2868 | _cleanup_(lookup_paths_free) LookupPaths lp = {}; |
92d430a9 | 2869 | int r; |
ec7eaff3 ZJS |
2870 | |
2871 | assert(scope >= 0); | |
4870133b | 2872 | assert(scope < _RUNTIME_SCOPE_MAX); |
ec7eaff3 ZJS |
2873 | |
2874 | r = lookup_paths_init(&lp, scope, 0, root_dir); | |
2875 | if (r < 0) | |
2876 | return r; | |
2877 | ||
2878 | const char *config_path = config_path_from_flags(&lp, flags); | |
2879 | if (!config_path) | |
2880 | return -ENXIO; | |
2881 | ||
2882 | return do_unit_file_disable(&lp, scope, flags, config_path, files, changes, n_changes); | |
2883 | } | |
2884 | ||
29a7c59a | 2885 | static int normalize_linked_files( |
4870133b | 2886 | RuntimeScope scope, |
29a7c59a ZJS |
2887 | const LookupPaths *lp, |
2888 | char **names_or_paths, | |
2889 | char ***ret_names, | |
2890 | char ***ret_files) { | |
2891 | ||
2892 | /* This is similar to normalize_filenames()/normalize_names() in src/systemctl/, | |
30fd9a2d | 2893 | * but operates on real unit names. For each argument we look up the actual path |
8b7378e1 | 2894 | * where the unit is found. This way linked units can be re-enabled successfully. */ |
29a7c59a | 2895 | |
0b6bf4b6 | 2896 | _cleanup_strv_free_ char **files = NULL, **names = NULL; |
29a7c59a ZJS |
2897 | int r; |
2898 | ||
2899 | STRV_FOREACH(a, names_or_paths) { | |
2900 | _cleanup_(install_context_done) InstallContext ctx = { .scope = scope }; | |
0047d54d | 2901 | InstallInfo *i = NULL; |
29a7c59a ZJS |
2902 | _cleanup_free_ char *n = NULL; |
2903 | ||
2904 | r = path_extract_filename(*a, &n); | |
2905 | if (r < 0) | |
2906 | return r; | |
2907 | if (r == O_DIRECTORY) | |
2908 | return log_debug_errno(SYNTHETIC_ERRNO(EISDIR), | |
2909 | "Unexpected path to a directory \"%s\", refusing.", *a); | |
2910 | ||
2911 | if (!is_path(*a)) { | |
2912 | r = install_info_discover(&ctx, lp, n, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS, &i, NULL, NULL); | |
2913 | if (r < 0) | |
2914 | log_debug_errno(r, "Failed to discover unit \"%s\", operating on name: %m", n); | |
2915 | } | |
2916 | ||
2917 | r = strv_consume(&names, TAKE_PTR(n)); | |
2918 | if (r < 0) | |
2919 | return r; | |
2920 | ||
2921 | const char *p = NULL; | |
6e961aeb | 2922 | if (i && i->path && i->root) |
29a7c59a ZJS |
2923 | /* Use startswith here, because we know that paths are normalized, and |
2924 | * path_startswith() would give us a relative path, but we need an absolute path | |
2925 | * relative to i->root. | |
2926 | * | |
2927 | * In other words: /var/tmp/instroot.1234/etc/systemd/system/frobnicator.service | |
2928 | * is replaced by /etc/systemd/system/frobnicator.service, which is "absolute" | |
2929 | * in a sense, but only makes sense "relative" to /var/tmp/instroot.1234/. | |
2930 | */ | |
2931 | p = startswith(i->path, i->root); | |
2932 | ||
2933 | r = strv_extend(&files, p ?: *a); | |
2934 | if (r < 0) | |
2935 | return r; | |
2936 | } | |
2937 | ||
2938 | *ret_names = TAKE_PTR(names); | |
2939 | *ret_files = TAKE_PTR(files); | |
2940 | return 0; | |
2941 | } | |
2942 | ||
ec7eaff3 | 2943 | int unit_file_reenable( |
4870133b | 2944 | RuntimeScope scope, |
ec7eaff3 ZJS |
2945 | UnitFileFlags flags, |
2946 | const char *root_dir, | |
29a7c59a | 2947 | char **names_or_paths, |
cd44ec5a | 2948 | InstallChange **changes, |
ec7eaff3 ZJS |
2949 | size_t *n_changes) { |
2950 | ||
2951 | _cleanup_(lookup_paths_free) LookupPaths lp = {}; | |
29a7c59a | 2952 | _cleanup_strv_free_ char **names = NULL, **files = NULL; |
ec7eaff3 ZJS |
2953 | int r; |
2954 | ||
2955 | assert(scope >= 0); | |
4870133b | 2956 | assert(scope < _RUNTIME_SCOPE_MAX); |
ec7eaff3 ZJS |
2957 | |
2958 | r = lookup_paths_init(&lp, scope, 0, root_dir); | |
2959 | if (r < 0) | |
2960 | return r; | |
2961 | ||
2962 | const char *config_path = config_path_from_flags(&lp, flags); | |
2963 | if (!config_path) | |
2964 | return -ENXIO; | |
83096483 | 2965 | |
29a7c59a ZJS |
2966 | r = normalize_linked_files(scope, &lp, names_or_paths, &names, &files); |
2967 | if (r < 0) | |
2968 | return r; | |
0ec0deaa | 2969 | |
29a7c59a | 2970 | /* First, we invoke the disable command with only the basename... */ |
ec7eaff3 | 2971 | r = do_unit_file_disable(&lp, scope, flags, config_path, names, changes, n_changes); |
83096483 | 2972 | if (r < 0) |
d9e5e694 | 2973 | return r; |
83096483 | 2974 | |
0ec0deaa | 2975 | /* But the enable command with the full name */ |
ec7eaff3 | 2976 | return do_unit_file_enable(&lp, scope, flags, config_path, files, changes, n_changes); |
83096483 LP |
2977 | } |
2978 | ||
99504dd4 | 2979 | int unit_file_set_default( |
4870133b | 2980 | RuntimeScope scope, |
b3796dd8 | 2981 | UnitFileFlags flags, |
99504dd4 | 2982 | const char *root_dir, |
0ec0deaa | 2983 | const char *name, |
cd44ec5a | 2984 | InstallChange **changes, |
da6053d0 | 2985 | size_t *n_changes) { |
99504dd4 | 2986 | |
c3e7fba0 | 2987 | _cleanup_(lookup_paths_free) LookupPaths lp = {}; |
4a84db4c | 2988 | _cleanup_(install_context_done) InstallContext ctx = { .scope = scope }; |
0047d54d | 2989 | InstallInfo *info; |
60bec8e4 | 2990 | const char *new_path; |
99504dd4 | 2991 | int r; |
99504dd4 VP |
2992 | |
2993 | assert(scope >= 0); | |
4870133b | 2994 | assert(scope < _RUNTIME_SCOPE_MAX); |
0ec0deaa | 2995 | assert(name); |
99504dd4 | 2996 | |
401017e0 | 2997 | if (unit_name_to_type(name) != UNIT_TARGET) /* this also validates the name */ |
0ec0deaa LP |
2998 | return -EINVAL; |
2999 | if (streq(name, SPECIAL_DEFAULT_TARGET)) | |
99504dd4 VP |
3000 | return -EINVAL; |
3001 | ||
c3e7fba0 | 3002 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
99504dd4 VP |
3003 | if (r < 0) |
3004 | return r; | |
3005 | ||
4a84db4c | 3006 | r = install_info_discover_and_check(&ctx, &lp, name, 0, &info, changes, n_changes); |
76adb5b8 LP |
3007 | if (r < 0) |
3008 | return r; | |
99504dd4 | 3009 | |
c3e7fba0 | 3010 | new_path = strjoina(lp.persistent_config, "/" SPECIAL_DEFAULT_TARGET); |
9aa3d6b4 | 3011 | return create_symlink(&lp, info->path, new_path, flags & UNIT_FILE_FORCE, changes, n_changes); |
99504dd4 VP |
3012 | } |
3013 | ||
3014 | int unit_file_get_default( | |
4870133b | 3015 | RuntimeScope scope, |
99504dd4 VP |
3016 | const char *root_dir, |
3017 | char **name) { | |
3018 | ||
c3e7fba0 | 3019 | _cleanup_(lookup_paths_free) LookupPaths lp = {}; |
4a84db4c | 3020 | _cleanup_(install_context_done) InstallContext ctx = { .scope = scope }; |
0047d54d | 3021 | InstallInfo *info; |
0ec0deaa | 3022 | char *n; |
99504dd4 VP |
3023 | int r; |
3024 | ||
16ed0233 | 3025 | assert(scope >= 0); |
4870133b | 3026 | assert(scope < _RUNTIME_SCOPE_MAX); |
16ed0233 LP |
3027 | assert(name); |
3028 | ||
c3e7fba0 | 3029 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
0ec0deaa LP |
3030 | if (r < 0) |
3031 | return r; | |
99504dd4 | 3032 | |
4a84db4c ZJS |
3033 | r = install_info_discover(&ctx, &lp, SPECIAL_DEFAULT_TARGET, SEARCH_FOLLOW_CONFIG_SYMLINKS, |
3034 | &info, NULL, NULL); | |
0ec0deaa LP |
3035 | if (r < 0) |
3036 | return r; | |
4a84db4c | 3037 | r = install_info_may_process(info, &lp, NULL, 0); |
76adb5b8 LP |
3038 | if (r < 0) |
3039 | return r; | |
99504dd4 | 3040 | |
4a84db4c | 3041 | n = strdup(info->name); |
0ec0deaa LP |
3042 | if (!n) |
3043 | return -ENOMEM; | |
99504dd4 | 3044 | |
0ec0deaa LP |
3045 | *name = n; |
3046 | return 0; | |
99504dd4 VP |
3047 | } |
3048 | ||
d6d98276 | 3049 | int unit_file_lookup_state( |
4870133b | 3050 | RuntimeScope scope, |
c3e7fba0 | 3051 | const LookupPaths *lp, |
0ec0deaa LP |
3052 | const char *name, |
3053 | UnitFileState *ret) { | |
83096483 | 3054 | |
4a84db4c | 3055 | _cleanup_(install_context_done) InstallContext ctx = { .scope = scope }; |
0047d54d | 3056 | InstallInfo *info; |
0ec0deaa LP |
3057 | UnitFileState state; |
3058 | int r; | |
83096483 | 3059 | |
c3e7fba0 | 3060 | assert(lp); |
0ec0deaa | 3061 | assert(name); |
83096483 | 3062 | |
7410616c | 3063 | if (!unit_name_is_valid(name, UNIT_NAME_ANY)) |
83096483 LP |
3064 | return -EINVAL; |
3065 | ||
4a84db4c ZJS |
3066 | r = install_info_discover(&ctx, lp, name, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS, |
3067 | &info, NULL, NULL); | |
0ec0deaa | 3068 | if (r < 0) |
3e8d06d9 ZJS |
3069 | return log_debug_errno(r, "Failed to discover unit %s: %m", name); |
3070 | ||
91810c8f | 3071 | assert(IN_SET(info->install_mode, INSTALL_MODE_REGULAR, INSTALL_MODE_MASKED)); |
4a84db4c | 3072 | log_debug("Found unit %s at %s (%s)", name, strna(info->path), |
91810c8f | 3073 | info->install_mode == INSTALL_MODE_REGULAR ? "regular file" : "mask"); |
83096483 | 3074 | |
0ec0deaa LP |
3075 | /* Shortcut things, if the caller just wants to know if this unit exists. */ |
3076 | if (!ret) | |
3077 | return 0; | |
83096483 | 3078 | |
91810c8f | 3079 | switch (info->install_mode) { |
67820a0c | 3080 | |
318031fd | 3081 | case INSTALL_MODE_MASKED: |
4a84db4c | 3082 | r = path_is_runtime(lp, info->path, true); |
385eb996 LP |
3083 | if (r < 0) |
3084 | return r; | |
3085 | ||
3086 | state = r > 0 ? UNIT_FILE_MASKED_RUNTIME : UNIT_FILE_MASKED; | |
0ec0deaa | 3087 | break; |
83096483 | 3088 | |
318031fd | 3089 | case INSTALL_MODE_REGULAR: |
15d7ab87 | 3090 | /* Check if the name we were querying is actually an alias */ |
4a84db4c | 3091 | if (!streq(name, basename(info->path)) && !unit_name_is_valid(info->name, UNIT_NAME_INSTANCE)) { |
15d7ab87 ZJS |
3092 | state = UNIT_FILE_ALIAS; |
3093 | break; | |
3094 | } | |
3095 | ||
4a84db4c | 3096 | r = path_is_generator(lp, info->path); |
f4139308 LP |
3097 | if (r < 0) |
3098 | return r; | |
3099 | if (r > 0) { | |
3100 | state = UNIT_FILE_GENERATED; | |
3101 | break; | |
3102 | } | |
3103 | ||
4a84db4c | 3104 | r = path_is_transient(lp, info->path); |
e4fca67f LP |
3105 | if (r < 0) |
3106 | return r; | |
3107 | if (r > 0) { | |
3108 | state = UNIT_FILE_TRANSIENT; | |
3109 | break; | |
3110 | } | |
3111 | ||
5cd8ae31 ZJS |
3112 | /* Check if any of the Alias= symlinks have been created. |
3113 | * We ignore other aliases, and only check those that would | |
3114 | * be created by systemctl enable for this unit. */ | |
4a84db4c | 3115 | r = find_symlinks_in_scope(scope, lp, info, true, &state); |
d9b4b48f ZJS |
3116 | if (r < 0) |
3117 | return r; | |
3118 | if (r > 0) | |
3119 | break; | |
3120 | ||
3121 | /* Check if the file is known under other names. If it is, | |
3122 | * it might be in use. Report that as UNIT_FILE_INDIRECT. */ | |
4a84db4c | 3123 | r = find_symlinks_in_scope(scope, lp, info, false, &state); |
d9e5e694 ZJS |
3124 | if (r < 0) |
3125 | return r; | |
d9b4b48f ZJS |
3126 | if (r > 0) |
3127 | state = UNIT_FILE_INDIRECT; | |
3128 | else { | |
0047d54d | 3129 | if (install_info_has_rules(info)) |
0ec0deaa | 3130 | state = UNIT_FILE_DISABLED; |
0047d54d | 3131 | else if (install_info_has_also(info)) |
0ec0deaa LP |
3132 | state = UNIT_FILE_INDIRECT; |
3133 | else | |
3134 | state = UNIT_FILE_STATIC; | |
3135 | } | |
83096483 | 3136 | |
0ec0deaa LP |
3137 | break; |
3138 | ||
3139 | default: | |
04499a70 | 3140 | assert_not_reached(); |
83096483 LP |
3141 | } |
3142 | ||
0ec0deaa LP |
3143 | *ret = state; |
3144 | return 0; | |
83096483 LP |
3145 | } |
3146 | ||
0ec0deaa | 3147 | int unit_file_get_state( |
4870133b | 3148 | RuntimeScope scope, |
a8ffe6fb | 3149 | const char *root_dir, |
0ec0deaa LP |
3150 | const char *name, |
3151 | UnitFileState *ret) { | |
a8ffe6fb | 3152 | |
c3e7fba0 | 3153 | _cleanup_(lookup_paths_free) LookupPaths lp = {}; |
a8ffe6fb ZJS |
3154 | int r; |
3155 | ||
3156 | assert(scope >= 0); | |
4870133b | 3157 | assert(scope < _RUNTIME_SCOPE_MAX); |
a8ffe6fb ZJS |
3158 | assert(name); |
3159 | ||
c3e7fba0 | 3160 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
a8ffe6fb ZJS |
3161 | if (r < 0) |
3162 | return r; | |
3163 | ||
c3e7fba0 | 3164 | return unit_file_lookup_state(scope, &lp, name, ret); |
a8ffe6fb ZJS |
3165 | } |
3166 | ||
4870133b | 3167 | int unit_file_exists(RuntimeScope scope, const LookupPaths *lp, const char *name) { |
4a84db4c | 3168 | _cleanup_(install_context_done) InstallContext c = { .scope = scope }; |
e735decc LP |
3169 | int r; |
3170 | ||
c3e7fba0 | 3171 | assert(lp); |
e735decc LP |
3172 | assert(name); |
3173 | ||
3174 | if (!unit_name_is_valid(name, UNIT_NAME_ANY)) | |
3175 | return -EINVAL; | |
3176 | ||
4a84db4c | 3177 | r = install_info_discover(&c, lp, name, 0, NULL, NULL, NULL); |
e735decc LP |
3178 | if (r == -ENOENT) |
3179 | return 0; | |
3180 | if (r < 0) | |
3181 | return r; | |
3182 | ||
3183 | return 1; | |
3184 | } | |
3185 | ||
4c9565ee RB |
3186 | static int split_pattern_into_name_and_instances(const char *pattern, char **out_unit_name, char ***out_instances) { |
3187 | _cleanup_strv_free_ char **instances = NULL; | |
3188 | _cleanup_free_ char *unit_name = NULL; | |
3189 | int r; | |
3190 | ||
3191 | assert(pattern); | |
3192 | assert(out_instances); | |
3193 | assert(out_unit_name); | |
3194 | ||
82bd4da7 | 3195 | r = extract_first_word(&pattern, &unit_name, NULL, EXTRACT_RETAIN_ESCAPE); |
4c9565ee RB |
3196 | if (r < 0) |
3197 | return r; | |
3198 | ||
3199 | /* We handle the instances logic when unit name is extracted */ | |
3200 | if (pattern) { | |
3201 | /* We only create instances when a rule of templated unit | |
3202 | * is seen. A rule like enable foo@.service a b c will | |
3203 | * result in an array of (a, b, c) as instance names */ | |
3204 | if (!unit_name_is_valid(unit_name, UNIT_NAME_TEMPLATE)) | |
3205 | return -EINVAL; | |
3206 | ||
3207 | instances = strv_split(pattern, WHITESPACE); | |
3208 | if (!instances) | |
3209 | return -ENOMEM; | |
3210 | ||
3211 | *out_instances = TAKE_PTR(instances); | |
3212 | } | |
3213 | ||
3214 | *out_unit_name = TAKE_PTR(unit_name); | |
3215 | ||
3216 | return 0; | |
3217 | } | |
3218 | ||
4870133b | 3219 | static int presets_find_config(RuntimeScope scope, const char *root_dir, char ***files) { |
10fd1d46 ZJS |
3220 | static const char* const system_dirs[] = {CONF_PATHS("systemd/system-preset"), NULL}; |
3221 | static const char* const user_dirs[] = {CONF_PATHS_USR("systemd/user-preset"), NULL}; | |
f7767d76 | 3222 | const char* const* dirs; |
83096483 LP |
3223 | |
3224 | assert(scope >= 0); | |
4870133b | 3225 | assert(scope < _RUNTIME_SCOPE_MAX); |
0ec0deaa | 3226 | |
4870133b | 3227 | if (scope == RUNTIME_SCOPE_SYSTEM) |
10fd1d46 | 3228 | dirs = system_dirs; |
4870133b | 3229 | else if (IN_SET(scope, RUNTIME_SCOPE_GLOBAL, RUNTIME_SCOPE_USER)) |
10fd1d46 | 3230 | dirs = user_dirs; |
a05294ff | 3231 | else |
04499a70 | 3232 | assert_not_reached(); |
83096483 | 3233 | |
f7767d76 | 3234 | return conf_files_list_strv(files, ".preset", root_dir, 0, dirs); |
e0b8a238 ZJS |
3235 | } |
3236 | ||
4870133b | 3237 | static int read_presets(RuntimeScope scope, const char *root_dir, UnitFilePresets *presets) { |
05cdf6a7 | 3238 | _cleanup_(unit_file_presets_done) UnitFilePresets ps = {}; |
e0b8a238 | 3239 | _cleanup_strv_free_ char **files = NULL; |
e0b8a238 ZJS |
3240 | int r; |
3241 | ||
3242 | assert(scope >= 0); | |
4870133b | 3243 | assert(scope < _RUNTIME_SCOPE_MAX); |
e0b8a238 ZJS |
3244 | assert(presets); |
3245 | ||
3246 | r = presets_find_config(scope, root_dir, &files); | |
83096483 LP |
3247 | if (r < 0) |
3248 | return r; | |
3249 | ||
cba2ef02 | 3250 | STRV_FOREACH(p, files) { |
c2b2df60 | 3251 | _cleanup_fclose_ FILE *f = NULL; |
d544d1a4 | 3252 | int n = 0; |
83096483 | 3253 | |
cba2ef02 | 3254 | f = fopen(*p, "re"); |
83096483 LP |
3255 | if (!f) { |
3256 | if (errno == ENOENT) | |
3257 | continue; | |
3258 | ||
d9e5e694 | 3259 | return -errno; |
83096483 LP |
3260 | } |
3261 | ||
bef77f37 LP |
3262 | for (;;) { |
3263 | _cleanup_free_ char *line = NULL; | |
52c788e6 | 3264 | _cleanup_(unit_file_preset_rule_done) UnitFilePresetRule rule = {}; |
0ec0deaa LP |
3265 | const char *parameter; |
3266 | char *l; | |
83096483 | 3267 | |
bef77f37 LP |
3268 | r = read_line(f, LONG_LINE_MAX, &line); |
3269 | if (r < 0) | |
3270 | return r; | |
3271 | if (r == 0) | |
3272 | break; | |
3273 | ||
83096483 | 3274 | l = strstrip(line); |
d544d1a4 | 3275 | n++; |
83096483 | 3276 | |
0ec0deaa LP |
3277 | if (isempty(l)) |
3278 | continue; | |
3279 | if (strchr(COMMENTS, *l)) | |
83096483 LP |
3280 | continue; |
3281 | ||
0ec0deaa LP |
3282 | parameter = first_word(l, "enable"); |
3283 | if (parameter) { | |
4c9565ee RB |
3284 | char *unit_name; |
3285 | char **instances = NULL; | |
d9e5e694 | 3286 | |
4c9565ee RB |
3287 | /* Unit_name will remain the same as parameter when no instances are specified */ |
3288 | r = split_pattern_into_name_and_instances(parameter, &unit_name, &instances); | |
3289 | if (r < 0) { | |
8ac3c9ab | 3290 | log_syntax(NULL, LOG_WARNING, *p, n, r, "Couldn't parse line '%s'. Ignoring.", line); |
4c9565ee RB |
3291 | continue; |
3292 | } | |
8965d9f8 | 3293 | |
8f7b2566 | 3294 | rule = (UnitFilePresetRule) { |
4c9565ee | 3295 | .pattern = unit_name, |
8965d9f8 | 3296 | .action = PRESET_ENABLE, |
4c9565ee | 3297 | .instances = instances, |
8965d9f8 | 3298 | }; |
0ec0deaa | 3299 | } |
83096483 | 3300 | |
0ec0deaa LP |
3301 | parameter = first_word(l, "disable"); |
3302 | if (parameter) { | |
8965d9f8 | 3303 | char *pattern; |
d9e5e694 | 3304 | |
8965d9f8 AC |
3305 | pattern = strdup(parameter); |
3306 | if (!pattern) | |
3307 | return -ENOMEM; | |
3308 | ||
8f7b2566 | 3309 | rule = (UnitFilePresetRule) { |
8965d9f8 AC |
3310 | .pattern = pattern, |
3311 | .action = PRESET_DISABLE, | |
3312 | }; | |
3313 | } | |
3314 | ||
e77e07f6 DDM |
3315 | parameter = first_word(l, "ignore"); |
3316 | if (parameter) { | |
3317 | char *pattern; | |
3318 | ||
3319 | pattern = strdup(parameter); | |
3320 | if (!pattern) | |
3321 | return -ENOMEM; | |
3322 | ||
3323 | rule = (UnitFilePresetRule) { | |
3324 | .pattern = pattern, | |
3325 | .action = PRESET_IGNORE, | |
3326 | }; | |
3327 | } | |
3328 | ||
8965d9f8 | 3329 | if (rule.action) { |
319a4f4b | 3330 | if (!GREEDY_REALLOC(ps.rules, ps.n_rules + 1)) |
8965d9f8 AC |
3331 | return -ENOMEM; |
3332 | ||
52c788e6 | 3333 | ps.rules[ps.n_rules++] = TAKE_STRUCT(rule); |
0ec0deaa LP |
3334 | continue; |
3335 | } | |
3336 | ||
d544d1a4 | 3337 | log_syntax(NULL, LOG_WARNING, *p, n, 0, "Couldn't parse line '%s'. Ignoring.", line); |
83096483 | 3338 | } |
83096483 LP |
3339 | } |
3340 | ||
8f7b2566 | 3341 | ps.initialized = true; |
088d71f8 | 3342 | *presets = TAKE_STRUCT(ps); |
8965d9f8 AC |
3343 | |
3344 | return 0; | |
3345 | } | |
3346 | ||
4c9565ee | 3347 | static int pattern_match_multiple_instances( |
8f7b2566 | 3348 | const UnitFilePresetRule rule, |
4c9565ee RB |
3349 | const char *unit_name, |
3350 | char ***ret) { | |
3351 | ||
3352 | _cleanup_free_ char *templated_name = NULL; | |
3353 | int r; | |
3354 | ||
3355 | /* If no ret is needed or the rule itself does not have instances | |
5238e957 | 3356 | * initialized, we return not matching */ |
4c9565ee RB |
3357 | if (!ret || !rule.instances) |
3358 | return 0; | |
3359 | ||
3360 | r = unit_name_template(unit_name, &templated_name); | |
3361 | if (r < 0) | |
3362 | return r; | |
3363 | if (!streq(rule.pattern, templated_name)) | |
3364 | return 0; | |
3365 | ||
3366 | /* Compose a list of specified instances when unit name is a template */ | |
3367 | if (unit_name_is_valid(unit_name, UNIT_NAME_TEMPLATE)) { | |
4c9565ee | 3368 | _cleanup_strv_free_ char **out_strv = NULL; |
4c9565ee RB |
3369 | |
3370 | STRV_FOREACH(iter, rule.instances) { | |
3371 | _cleanup_free_ char *name = NULL; | |
47ab95fe ZJS |
3372 | |
3373 | r = unit_name_replace_instance(unit_name, *iter, &name); | |
4c9565ee RB |
3374 | if (r < 0) |
3375 | return r; | |
47ab95fe ZJS |
3376 | |
3377 | r = strv_consume(&out_strv, TAKE_PTR(name)); | |
4c9565ee RB |
3378 | if (r < 0) |
3379 | return r; | |
3380 | } | |
3381 | ||
3382 | *ret = TAKE_PTR(out_strv); | |
3383 | return 1; | |
3384 | } else { | |
3385 | /* We now know the input unit name is an instance name */ | |
3386 | _cleanup_free_ char *instance_name = NULL; | |
3387 | ||
3388 | r = unit_name_to_instance(unit_name, &instance_name); | |
3389 | if (r < 0) | |
3390 | return r; | |
3391 | ||
3392 | if (strv_find(rule.instances, instance_name)) | |
3393 | return 1; | |
3394 | } | |
3395 | return 0; | |
3396 | } | |
3397 | ||
8f7b2566 | 3398 | static int query_presets(const char *name, const UnitFilePresets *presets, char ***instance_name_list) { |
8965d9f8 | 3399 | PresetAction action = PRESET_UNKNOWN; |
de8be28e | 3400 | |
8965d9f8 AC |
3401 | if (!unit_name_is_valid(name, UNIT_NAME_ANY)) |
3402 | return -EINVAL; | |
3403 | ||
de8be28e | 3404 | for (size_t i = 0; i < presets->n_rules; i++) |
8f7b2566 ZJS |
3405 | if (pattern_match_multiple_instances(presets->rules[i], name, instance_name_list) > 0 || |
3406 | fnmatch(presets->rules[i].pattern, name, FNM_NOESCAPE) == 0) { | |
3407 | action = presets->rules[i].action; | |
8965d9f8 AC |
3408 | break; |
3409 | } | |
3410 | ||
3411 | switch (action) { | |
3412 | case PRESET_UNKNOWN: | |
3413 | log_debug("Preset files don't specify rule for %s. Enabling.", name); | |
e77e07f6 | 3414 | return PRESET_ENABLE; |
8965d9f8 | 3415 | case PRESET_ENABLE: |
de010b0b | 3416 | if (instance_name_list && *instance_name_list) |
4c9565ee RB |
3417 | STRV_FOREACH(s, *instance_name_list) |
3418 | log_debug("Preset files say enable %s.", *s); | |
de010b0b | 3419 | else |
4c9565ee | 3420 | log_debug("Preset files say enable %s.", name); |
e77e07f6 | 3421 | return PRESET_ENABLE; |
8965d9f8 AC |
3422 | case PRESET_DISABLE: |
3423 | log_debug("Preset files say disable %s.", name); | |
e77e07f6 DDM |
3424 | return PRESET_DISABLE; |
3425 | case PRESET_IGNORE: | |
3426 | log_debug("Preset files say ignore %s.", name); | |
3427 | return PRESET_IGNORE; | |
8965d9f8 | 3428 | default: |
04499a70 | 3429 | assert_not_reached(); |
8965d9f8 AC |
3430 | } |
3431 | } | |
3432 | ||
e77e07f6 | 3433 | PresetAction unit_file_query_preset(RuntimeScope scope, const char *root_dir, const char *name, UnitFilePresets *cached) { |
05cdf6a7 | 3434 | _cleanup_(unit_file_presets_done) UnitFilePresets tmp = {}; |
8965d9f8 AC |
3435 | int r; |
3436 | ||
8f7b2566 ZJS |
3437 | if (!cached) |
3438 | cached = &tmp; | |
3439 | if (!cached->initialized) { | |
3440 | r = read_presets(scope, root_dir, cached); | |
3441 | if (r < 0) | |
3442 | return r; | |
3443 | } | |
8965d9f8 | 3444 | |
8f7b2566 | 3445 | return query_presets(name, cached, NULL); |
83096483 LP |
3446 | } |
3447 | ||
0ec0deaa | 3448 | static int execute_preset( |
9b69770a | 3449 | UnitFileFlags file_flags, |
0ec0deaa LP |
3450 | InstallContext *plus, |
3451 | InstallContext *minus, | |
c3e7fba0 | 3452 | const LookupPaths *lp, |
1830ac51 | 3453 | const char *config_path, |
0ec0deaa LP |
3454 | char **files, |
3455 | UnitFilePresetMode mode, | |
cd44ec5a | 3456 | InstallChange **changes, |
da6053d0 | 3457 | size_t *n_changes) { |
0ec0deaa | 3458 | |
1830ac51 | 3459 | int r; |
0ec0deaa LP |
3460 | |
3461 | assert(plus); | |
3462 | assert(minus); | |
c3e7fba0 | 3463 | assert(lp); |
1830ac51 | 3464 | assert(config_path); |
0ec0deaa LP |
3465 | |
3466 | if (mode != UNIT_FILE_PRESET_ENABLE_ONLY) { | |
3467 | _cleanup_set_free_free_ Set *remove_symlinks_to = NULL; | |
3468 | ||
4a84db4c | 3469 | r = install_context_mark_for_removal(minus, lp, &remove_symlinks_to, config_path, changes, n_changes); |
1830ac51 MB |
3470 | if (r < 0) |
3471 | return r; | |
0ec0deaa | 3472 | |
c3e7fba0 | 3473 | r = remove_marked_symlinks(remove_symlinks_to, config_path, lp, false, changes, n_changes); |
1830ac51 MB |
3474 | } else |
3475 | r = 0; | |
0ec0deaa LP |
3476 | |
3477 | if (mode != UNIT_FILE_PRESET_DISABLE_ONLY) { | |
1830ac51 MB |
3478 | int q; |
3479 | ||
0ec0deaa | 3480 | /* Returns number of symlinks that where supposed to be installed. */ |
4a84db4c | 3481 | q = install_context_apply(plus, lp, |
ad5fdd39 | 3482 | file_flags | UNIT_FILE_IGNORE_AUXILIARY_FAILURE, |
4a84db4c ZJS |
3483 | config_path, |
3484 | SEARCH_LOAD, changes, n_changes); | |
1830ac51 MB |
3485 | if (r >= 0) { |
3486 | if (q < 0) | |
3487 | r = q; | |
3488 | else | |
3489 | r += q; | |
3490 | } | |
0ec0deaa LP |
3491 | } |
3492 | ||
3493 | return r; | |
3494 | } | |
3495 | ||
3496 | static int preset_prepare_one( | |
4870133b | 3497 | RuntimeScope scope, |
0ec0deaa LP |
3498 | InstallContext *plus, |
3499 | InstallContext *minus, | |
c3e7fba0 | 3500 | LookupPaths *lp, |
af3d8113 | 3501 | const char *name, |
8f7b2566 | 3502 | const UnitFilePresets *presets, |
cd44ec5a | 3503 | InstallChange **changes, |
da6053d0 | 3504 | size_t *n_changes) { |
0ec0deaa | 3505 | |
4a84db4c | 3506 | _cleanup_(install_context_done) InstallContext tmp = { .scope = scope }; |
4c9565ee | 3507 | _cleanup_strv_free_ char **instance_name_list = NULL; |
0047d54d | 3508 | InstallInfo *info; |
0ec0deaa LP |
3509 | int r; |
3510 | ||
11e11fd5 | 3511 | if (install_info_find(plus, name) || install_info_find(minus, name)) |
0ec0deaa LP |
3512 | return 0; |
3513 | ||
4a84db4c ZJS |
3514 | r = install_info_discover(&tmp, lp, name, SEARCH_FOLLOW_CONFIG_SYMLINKS, |
3515 | &info, changes, n_changes); | |
11e11fd5 ZJS |
3516 | if (r < 0) |
3517 | return r; | |
4a84db4c ZJS |
3518 | if (!streq(name, info->name)) { |
3519 | log_debug("Skipping %s because it is an alias for %s.", name, info->name); | |
11e11fd5 ZJS |
3520 | return 0; |
3521 | } | |
3522 | ||
4c9565ee | 3523 | r = query_presets(name, presets, &instance_name_list); |
0ec0deaa LP |
3524 | if (r < 0) |
3525 | return r; | |
3526 | ||
e77e07f6 | 3527 | if (r == PRESET_ENABLE) { |
de010b0b | 3528 | if (instance_name_list) |
4c9565ee | 3529 | STRV_FOREACH(s, instance_name_list) { |
4a84db4c ZJS |
3530 | r = install_info_discover_and_check(plus, lp, *s, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS, |
3531 | &info, changes, n_changes); | |
4c9565ee RB |
3532 | if (r < 0) |
3533 | return r; | |
3534 | } | |
de010b0b | 3535 | else { |
4a84db4c ZJS |
3536 | r = install_info_discover_and_check(plus, lp, name, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS, |
3537 | &info, changes, n_changes); | |
4c9565ee RB |
3538 | if (r < 0) |
3539 | return r; | |
3540 | } | |
0ec0deaa | 3541 | |
e77e07f6 | 3542 | } else if (r == PRESET_DISABLE) |
4a84db4c ZJS |
3543 | r = install_info_discover(minus, lp, name, SEARCH_FOLLOW_CONFIG_SYMLINKS, |
3544 | &info, changes, n_changes); | |
0ec0deaa LP |
3545 | |
3546 | return r; | |
3547 | } | |
3548 | ||
83096483 | 3549 | int unit_file_preset( |
4870133b | 3550 | RuntimeScope scope, |
9b69770a | 3551 | UnitFileFlags file_flags, |
83096483 | 3552 | const char *root_dir, |
0f87041f | 3553 | char **names, |
d309c1c3 | 3554 | UnitFilePresetMode mode, |
cd44ec5a | 3555 | InstallChange **changes, |
da6053d0 | 3556 | size_t *n_changes) { |
83096483 | 3557 | |
59ccf93d | 3558 | _cleanup_(install_context_done) InstallContext plus = {}, minus = {}; |
c3e7fba0 | 3559 | _cleanup_(lookup_paths_free) LookupPaths lp = {}; |
05cdf6a7 | 3560 | _cleanup_(unit_file_presets_done) UnitFilePresets presets = {}; |
1830ac51 | 3561 | const char *config_path; |
0ec0deaa | 3562 | int r; |
83096483 LP |
3563 | |
3564 | assert(scope >= 0); | |
4870133b | 3565 | assert(scope < _RUNTIME_SCOPE_MAX); |
b364c4de | 3566 | assert(mode < _UNIT_FILE_PRESET_MODE_MAX); |
83096483 | 3567 | |
c3e7fba0 | 3568 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
83096483 LP |
3569 | if (r < 0) |
3570 | return r; | |
3571 | ||
c3e7fba0 | 3572 | config_path = (file_flags & UNIT_FILE_RUNTIME) ? lp.runtime_config : lp.persistent_config; |
1830ac51 MB |
3573 | if (!config_path) |
3574 | return -ENXIO; | |
3575 | ||
8965d9f8 AC |
3576 | r = read_presets(scope, root_dir, &presets); |
3577 | if (r < 0) | |
3578 | return r; | |
83096483 | 3579 | |
0f87041f ZJS |
3580 | STRV_FOREACH(name, names) { |
3581 | r = preset_prepare_one(scope, &plus, &minus, &lp, *name, &presets, changes, n_changes); | |
83096483 | 3582 | if (r < 0) |
d9e5e694 | 3583 | return r; |
83096483 LP |
3584 | } |
3585 | ||
0f87041f | 3586 | return execute_preset(file_flags, &plus, &minus, &lp, config_path, names, mode, changes, n_changes); |
d309c1c3 LP |
3587 | } |
3588 | ||
3589 | int unit_file_preset_all( | |
4870133b | 3590 | RuntimeScope scope, |
9b69770a | 3591 | UnitFileFlags file_flags, |
d309c1c3 LP |
3592 | const char *root_dir, |
3593 | UnitFilePresetMode mode, | |
cd44ec5a | 3594 | InstallChange **changes, |
da6053d0 | 3595 | size_t *n_changes) { |
d309c1c3 | 3596 | |
59ccf93d | 3597 | _cleanup_(install_context_done) InstallContext plus = {}, minus = {}; |
c3e7fba0 | 3598 | _cleanup_(lookup_paths_free) LookupPaths lp = {}; |
05cdf6a7 | 3599 | _cleanup_(unit_file_presets_done) UnitFilePresets presets = {}; |
1830ac51 | 3600 | const char *config_path = NULL; |
0ec0deaa | 3601 | int r; |
d309c1c3 LP |
3602 | |
3603 | assert(scope >= 0); | |
4870133b | 3604 | assert(scope < _RUNTIME_SCOPE_MAX); |
b364c4de | 3605 | assert(mode < _UNIT_FILE_PRESET_MODE_MAX); |
d309c1c3 | 3606 | |
c3e7fba0 | 3607 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
d309c1c3 LP |
3608 | if (r < 0) |
3609 | return r; | |
3610 | ||
c3e7fba0 | 3611 | config_path = (file_flags & UNIT_FILE_RUNTIME) ? lp.runtime_config : lp.persistent_config; |
1830ac51 MB |
3612 | if (!config_path) |
3613 | return -ENXIO; | |
3614 | ||
8965d9f8 AC |
3615 | r = read_presets(scope, root_dir, &presets); |
3616 | if (r < 0) | |
3617 | return r; | |
3618 | ||
c3e7fba0 | 3619 | STRV_FOREACH(i, lp.search_path) { |
d309c1c3 | 3620 | _cleanup_closedir_ DIR *d = NULL; |
d309c1c3 | 3621 | |
401017e0 | 3622 | d = opendir(*i); |
d309c1c3 LP |
3623 | if (!d) { |
3624 | if (errno == ENOENT) | |
3625 | continue; | |
3626 | ||
3627 | return -errno; | |
3628 | } | |
3629 | ||
d25e100b | 3630 | FOREACH_DIRENT(de, d, return -errno) { |
1830ac51 | 3631 | |
7410616c | 3632 | if (!unit_name_is_valid(de->d_name, UNIT_NAME_ANY)) |
d309c1c3 LP |
3633 | continue; |
3634 | ||
0ec0deaa | 3635 | if (!IN_SET(de->d_type, DT_LNK, DT_REG)) |
d309c1c3 LP |
3636 | continue; |
3637 | ||
c3e7fba0 | 3638 | r = preset_prepare_one(scope, &plus, &minus, &lp, de->d_name, &presets, changes, n_changes); |
4a203a51 | 3639 | if (r < 0 && |
cbfdbffb | 3640 | !IN_SET(r, -EEXIST, -ERFKILL, -EADDRNOTAVAIL, -EBADSLT, -EIDRM, -EUCLEAN, -ELOOP, -ENOENT, -EUNATCH, -EXDEV)) |
4a203a51 | 3641 | /* Ignore generated/transient/missing/invalid units when applying preset, propagate other errors. |
cd44ec5a | 3642 | * Coordinate with install_changes_dump() above. */ |
d309c1c3 LP |
3643 | return r; |
3644 | } | |
3645 | } | |
3646 | ||
4a84db4c | 3647 | return execute_preset(file_flags, &plus, &minus, &lp, config_path, NULL, mode, changes, n_changes); |
83096483 LP |
3648 | } |
3649 | ||
27681563 | 3650 | static UnitFileList* unit_file_list_free(UnitFileList *f) { |
59ccf93d | 3651 | if (!f) |
75db809a | 3652 | return NULL; |
d9e5e694 | 3653 | |
59ccf93d | 3654 | free(f->path); |
75db809a | 3655 | return mfree(f); |
d9e5e694 | 3656 | } |
59ccf93d | 3657 | |
27681563 | 3658 | DEFINE_TRIVIAL_CLEANUP_FUNC(UnitFileList*, unit_file_list_free); |
d9e5e694 | 3659 | |
c92899fd DT |
3660 | DEFINE_HASH_OPS_WITH_VALUE_DESTRUCTOR( |
3661 | unit_file_list_hash_ops_free, | |
3662 | char, | |
3663 | string_hash_func, | |
3664 | string_compare_func, | |
3665 | UnitFileList, | |
27681563 | 3666 | unit_file_list_free); |
c92899fd | 3667 | |
83096483 | 3668 | int unit_file_get_list( |
4870133b | 3669 | RuntimeScope scope, |
83096483 | 3670 | const char *root_dir, |
313fe66f | 3671 | Hashmap *h, |
3672 | char **states, | |
3673 | char **patterns) { | |
83096483 | 3674 | |
c3e7fba0 | 3675 | _cleanup_(lookup_paths_free) LookupPaths lp = {}; |
83096483 LP |
3676 | int r; |
3677 | ||
3678 | assert(scope >= 0); | |
4870133b | 3679 | assert(scope < _RUNTIME_SCOPE_MAX); |
83096483 LP |
3680 | assert(h); |
3681 | ||
c3e7fba0 | 3682 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
83096483 LP |
3683 | if (r < 0) |
3684 | return r; | |
3685 | ||
c3e7fba0 | 3686 | STRV_FOREACH(dirname, lp.search_path) { |
da39f6a6 | 3687 | _cleanup_closedir_ DIR *d = NULL; |
83096483 | 3688 | |
9c894b85 | 3689 | d = opendir(*dirname); |
83096483 LP |
3690 | if (!d) { |
3691 | if (errno == ENOENT) | |
3692 | continue; | |
a1feacf7 | 3693 | if (IN_SET(errno, ENOTDIR, EACCES)) { |
9c894b85 | 3694 | log_debug_errno(errno, "Failed to open \"%s\": %m", *dirname); |
a1feacf7 ZJS |
3695 | continue; |
3696 | } | |
83096483 | 3697 | |
d9e5e694 | 3698 | return -errno; |
83096483 LP |
3699 | } |
3700 | ||
d25e100b | 3701 | FOREACH_DIRENT(de, d, return -errno) { |
27681563 | 3702 | _cleanup_(unit_file_list_freep) UnitFileList *f = NULL; |
83096483 | 3703 | |
7410616c | 3704 | if (!unit_name_is_valid(de->d_name, UNIT_NAME_ANY)) |
83096483 LP |
3705 | continue; |
3706 | ||
313fe66f | 3707 | if (!strv_fnmatch_or_empty(patterns, de->d_name, FNM_NOESCAPE)) |
3708 | continue; | |
3709 | ||
83096483 LP |
3710 | if (hashmap_get(h, de->d_name)) |
3711 | continue; | |
3712 | ||
da39f6a6 | 3713 | if (!IN_SET(de->d_type, DT_LNK, DT_REG)) |
83096483 LP |
3714 | continue; |
3715 | ||
3716 | f = new0(UnitFileList, 1); | |
d9e5e694 ZJS |
3717 | if (!f) |
3718 | return -ENOMEM; | |
83096483 | 3719 | |
9c894b85 | 3720 | f->path = path_make_absolute(de->d_name, *dirname); |
d9e5e694 ZJS |
3721 | if (!f->path) |
3722 | return -ENOMEM; | |
83096483 | 3723 | |
c3e7fba0 | 3724 | r = unit_file_lookup_state(scope, &lp, de->d_name, &f->state); |
d9e5e694 | 3725 | if (r < 0) |
0ec0deaa | 3726 | f->state = UNIT_FILE_BAD; |
81fc054d | 3727 | |
313fe66f | 3728 | if (!strv_isempty(states) && |
3729 | !strv_contains(states, unit_file_state_to_string(f->state))) | |
3730 | continue; | |
3731 | ||
2b6bf07d | 3732 | r = hashmap_put(h, basename(f->path), f); |
d9e5e694 ZJS |
3733 | if (r < 0) |
3734 | return r; | |
0ec0deaa | 3735 | |
d9e5e694 | 3736 | f = NULL; /* prevent cleanup */ |
83096483 LP |
3737 | } |
3738 | } | |
3739 | ||
77cd2c87 | 3740 | return 0; |
83096483 LP |
3741 | } |
3742 | ||
3743 | static const char* const unit_file_state_table[_UNIT_FILE_STATE_MAX] = { | |
babccf14 | 3744 | [UNIT_FILE_ENABLED] = "enabled", |
771faa9a | 3745 | [UNIT_FILE_ENABLED_RUNTIME] = "enabled-runtime", |
babccf14 ZJS |
3746 | [UNIT_FILE_LINKED] = "linked", |
3747 | [UNIT_FILE_LINKED_RUNTIME] = "linked-runtime", | |
15d7ab87 | 3748 | [UNIT_FILE_ALIAS] = "alias", |
babccf14 ZJS |
3749 | [UNIT_FILE_MASKED] = "masked", |
3750 | [UNIT_FILE_MASKED_RUNTIME] = "masked-runtime", | |
3751 | [UNIT_FILE_STATIC] = "static", | |
3752 | [UNIT_FILE_DISABLED] = "disabled", | |
3753 | [UNIT_FILE_INDIRECT] = "indirect", | |
3754 | [UNIT_FILE_GENERATED] = "generated", | |
3755 | [UNIT_FILE_TRANSIENT] = "transient", | |
3756 | [UNIT_FILE_BAD] = "bad", | |
83096483 LP |
3757 | }; |
3758 | ||
3759 | DEFINE_STRING_TABLE_LOOKUP(unit_file_state, UnitFileState); | |
c0576cd6 | 3760 | |
f8662fee | 3761 | static const char* const install_change_type_table[_INSTALL_CHANGE_TYPE_MAX] = { |
1308f72e ZJS |
3762 | [INSTALL_CHANGE_SYMLINK] = "symlink", |
3763 | [INSTALL_CHANGE_UNLINK] = "unlink", | |
3764 | [INSTALL_CHANGE_IS_MASKED] = "masked", | |
bf3b0d5f | 3765 | [INSTALL_CHANGE_IS_MASKED_GENERATOR] = "masked by generator", |
1308f72e ZJS |
3766 | [INSTALL_CHANGE_IS_DANGLING] = "dangling", |
3767 | [INSTALL_CHANGE_DESTINATION_NOT_PRESENT] = "destination not present", | |
3768 | [INSTALL_CHANGE_AUXILIARY_FAILED] = "auxiliary unit failed", | |
c0576cd6 LP |
3769 | }; |
3770 | ||
f8662fee | 3771 | DEFINE_STRING_TABLE_LOOKUP(install_change_type, InstallChangeType); |
d309c1c3 | 3772 | |
b364c4de | 3773 | static const char* const unit_file_preset_mode_table[_UNIT_FILE_PRESET_MODE_MAX] = { |
babccf14 ZJS |
3774 | [UNIT_FILE_PRESET_FULL] = "full", |
3775 | [UNIT_FILE_PRESET_ENABLE_ONLY] = "enable-only", | |
d309c1c3 LP |
3776 | [UNIT_FILE_PRESET_DISABLE_ONLY] = "disable-only", |
3777 | }; | |
3778 | ||
3779 | DEFINE_STRING_TABLE_LOOKUP(unit_file_preset_mode, UnitFilePresetMode); |