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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" |
f4351959 | 13 | #include "chase-symlinks.h" |
07630cea LP |
14 | #include "conf-files.h" |
15 | #include "conf-parser.h" | |
f7767d76 | 16 | #include "def.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 { |
0ec0deaa LP |
50 | OrderedHashmap *will_process; |
51 | OrderedHashmap *have_processed; | |
83096483 LP |
52 | } InstallContext; |
53 | ||
8965d9f8 AC |
54 | typedef enum { |
55 | PRESET_UNKNOWN, | |
56 | PRESET_ENABLE, | |
57 | PRESET_DISABLE, | |
58 | } PresetAction; | |
59 | ||
8f7b2566 | 60 | struct UnitFilePresetRule { |
8965d9f8 AC |
61 | char *pattern; |
62 | PresetAction action; | |
4c9565ee | 63 | char **instances; |
8f7b2566 | 64 | }; |
8965d9f8 | 65 | |
a1e92eee | 66 | static bool unit_file_install_info_has_rules(const UnitFileInstallInfo *i) { |
7a7ec2bf ZJS |
67 | assert(i); |
68 | ||
69 | return !strv_isempty(i->aliases) || | |
70 | !strv_isempty(i->wanted_by) || | |
71 | !strv_isempty(i->required_by); | |
72 | } | |
73 | ||
a1e92eee | 74 | static bool unit_file_install_info_has_also(const UnitFileInstallInfo *i) { |
7a7ec2bf ZJS |
75 | assert(i); |
76 | ||
77 | return !strv_isempty(i->also); | |
78 | } | |
79 | ||
8f7b2566 | 80 | void unit_file_presets_freep(UnitFilePresets *p) { |
8965d9f8 AC |
81 | if (!p) |
82 | return; | |
83 | ||
de8be28e | 84 | for (size_t i = 0; i < p->n_rules; i++) { |
8965d9f8 | 85 | free(p->rules[i].pattern); |
4c9565ee RB |
86 | strv_free(p->rules[i].instances); |
87 | } | |
8965d9f8 AC |
88 | |
89 | free(p->rules); | |
90 | p->n_rules = 0; | |
91 | } | |
92 | ||
b82f71c7 | 93 | static const char *const unit_file_type_table[_UNIT_FILE_TYPE_MAX] = { |
64f9280e ZJS |
94 | [UNIT_FILE_TYPE_REGULAR] = "regular", |
95 | [UNIT_FILE_TYPE_SYMLINK] = "symlink", | |
96 | [UNIT_FILE_TYPE_MASKED] = "masked", | |
97 | }; | |
98 | ||
99 | DEFINE_PRIVATE_STRING_TABLE_LOOKUP_TO_STRING(unit_file_type, UnitFileType); | |
100 | ||
c3e7fba0 | 101 | static int in_search_path(const LookupPaths *lp, const char *path) { |
8f294b45 | 102 | _cleanup_free_ char *parent = NULL; |
8f294b45 LP |
103 | |
104 | assert(path); | |
105 | ||
5f311f8c LP |
106 | parent = dirname_malloc(path); |
107 | if (!parent) | |
108 | return -ENOMEM; | |
8f294b45 | 109 | |
c3e7fba0 | 110 | return path_strv_contains(lp->search_path, parent); |
8f294b45 LP |
111 | } |
112 | ||
c3e7fba0 | 113 | static const char* skip_root(const char *root_dir, const char *path) { |
8f9364f9 | 114 | assert(path); |
401017e0 | 115 | |
c3e7fba0 | 116 | if (!root_dir) |
8f9364f9 | 117 | return path; |
401017e0 | 118 | |
c3e7fba0 | 119 | const char *e = path_startswith(path, root_dir); |
8f9364f9 LP |
120 | if (!e) |
121 | return NULL; | |
122 | ||
123 | /* Make sure the returned path starts with a slash */ | |
124 | if (e[0] != '/') { | |
125 | if (e == path || e[-1] != '/') | |
126 | return NULL; | |
401017e0 | 127 | |
8f9364f9 | 128 | e--; |
401017e0 LP |
129 | } |
130 | ||
8f9364f9 | 131 | return e; |
401017e0 LP |
132 | } |
133 | ||
c3e7fba0 | 134 | static int path_is_generator(const LookupPaths *lp, const char *path) { |
f4139308 LP |
135 | _cleanup_free_ char *parent = NULL; |
136 | ||
c3e7fba0 | 137 | assert(lp); |
f4139308 LP |
138 | assert(path); |
139 | ||
140 | parent = dirname_malloc(path); | |
141 | if (!parent) | |
142 | return -ENOMEM; | |
143 | ||
c3e7fba0 ZJS |
144 | return path_equal_ptr(parent, lp->generator) || |
145 | path_equal_ptr(parent, lp->generator_early) || | |
146 | path_equal_ptr(parent, lp->generator_late); | |
f4139308 LP |
147 | } |
148 | ||
c3e7fba0 | 149 | static int path_is_transient(const LookupPaths *lp, const char *path) { |
e4fca67f LP |
150 | _cleanup_free_ char *parent = NULL; |
151 | ||
c3e7fba0 | 152 | assert(lp); |
e4fca67f LP |
153 | assert(path); |
154 | ||
155 | parent = dirname_malloc(path); | |
156 | if (!parent) | |
157 | return -ENOMEM; | |
158 | ||
c3e7fba0 | 159 | return path_equal_ptr(parent, lp->transient); |
e4fca67f LP |
160 | } |
161 | ||
c3e7fba0 | 162 | static int path_is_control(const LookupPaths *lp, const char *path) { |
e1c5c2b0 | 163 | _cleanup_free_ char *parent = NULL; |
0ec0deaa | 164 | |
c3e7fba0 | 165 | assert(lp); |
0ec0deaa LP |
166 | assert(path); |
167 | ||
344ca755 LP |
168 | parent = dirname_malloc(path); |
169 | if (!parent) | |
170 | return -ENOMEM; | |
0ec0deaa | 171 | |
c3e7fba0 ZJS |
172 | return path_equal_ptr(parent, lp->persistent_control) || |
173 | path_equal_ptr(parent, lp->runtime_control); | |
344ca755 LP |
174 | } |
175 | ||
c3e7fba0 | 176 | static int path_is_config(const LookupPaths *lp, const char *path, bool check_parent) { |
344ca755 LP |
177 | _cleanup_free_ char *parent = NULL; |
178 | ||
c3e7fba0 | 179 | assert(lp); |
344ca755 LP |
180 | assert(path); |
181 | ||
d7604756 ZJS |
182 | /* Note that we do *not* have generic checks for /etc or /run in place, since with |
183 | * them we couldn't discern configuration from transient or generated units */ | |
0ec0deaa | 184 | |
dfead90d LP |
185 | if (check_parent) { |
186 | parent = dirname_malloc(path); | |
187 | if (!parent) | |
188 | return -ENOMEM; | |
189 | ||
190 | path = parent; | |
191 | } | |
0ec0deaa | 192 | |
c3e7fba0 ZJS |
193 | return path_equal_ptr(path, lp->persistent_config) || |
194 | path_equal_ptr(path, lp->runtime_config); | |
0ec0deaa LP |
195 | } |
196 | ||
c3e7fba0 | 197 | static int path_is_runtime(const LookupPaths *lp, const char *path, bool check_parent) { |
385eb996 | 198 | _cleanup_free_ char *parent = NULL; |
401017e0 | 199 | const char *rpath; |
385eb996 | 200 | |
c3e7fba0 | 201 | assert(lp); |
385eb996 LP |
202 | assert(path); |
203 | ||
d7604756 ZJS |
204 | /* Everything in /run is considered runtime. On top of that we also add |
205 | * explicit checks for the various runtime directories, as safety net. */ | |
344ca755 | 206 | |
c3e7fba0 | 207 | rpath = skip_root(lp->root_dir, path); |
401017e0 | 208 | if (rpath && path_startswith(rpath, "/run")) |
385eb996 LP |
209 | return true; |
210 | ||
dfead90d LP |
211 | if (check_parent) { |
212 | parent = dirname_malloc(path); | |
213 | if (!parent) | |
214 | return -ENOMEM; | |
385eb996 | 215 | |
dfead90d LP |
216 | path = parent; |
217 | } | |
218 | ||
c3e7fba0 ZJS |
219 | return path_equal_ptr(path, lp->runtime_config) || |
220 | path_equal_ptr(path, lp->generator) || | |
221 | path_equal_ptr(path, lp->generator_early) || | |
222 | path_equal_ptr(path, lp->generator_late) || | |
223 | path_equal_ptr(path, lp->transient) || | |
224 | path_equal_ptr(path, lp->runtime_control); | |
344ca755 LP |
225 | } |
226 | ||
c3e7fba0 | 227 | static int path_is_vendor_or_generator(const LookupPaths *lp, const char *path) { |
344ca755 LP |
228 | const char *rpath; |
229 | ||
c3e7fba0 | 230 | assert(lp); |
344ca755 LP |
231 | assert(path); |
232 | ||
c3e7fba0 | 233 | rpath = skip_root(lp->root_dir, path); |
344ca755 LP |
234 | if (!rpath) |
235 | return 0; | |
236 | ||
237 | if (path_startswith(rpath, "/usr")) | |
238 | return true; | |
239 | ||
349cc4a5 | 240 | #if HAVE_SPLIT_USR |
344ca755 LP |
241 | if (path_startswith(rpath, "/lib")) |
242 | return true; | |
243 | #endif | |
244 | ||
c3e7fba0 | 245 | if (path_is_generator(lp, rpath)) |
efdbf5fe JC |
246 | return true; |
247 | ||
835cf75a | 248 | return path_equal(rpath, SYSTEM_DATA_UNIT_DIR); |
385eb996 LP |
249 | } |
250 | ||
c3e7fba0 ZJS |
251 | static const char* config_path_from_flags(const LookupPaths *lp, UnitFileFlags flags) { |
252 | assert(lp); | |
83654007 LB |
253 | |
254 | if (FLAGS_SET(flags, UNIT_FILE_PORTABLE)) | |
c3e7fba0 | 255 | return FLAGS_SET(flags, UNIT_FILE_RUNTIME) ? lp->runtime_attached : lp->persistent_attached; |
83654007 | 256 | else |
c3e7fba0 | 257 | return FLAGS_SET(flags, UNIT_FILE_RUNTIME) ? lp->runtime_config : lp->persistent_config; |
83654007 LB |
258 | } |
259 | ||
0ec0deaa LP |
260 | int unit_file_changes_add( |
261 | UnitFileChange **changes, | |
da6053d0 | 262 | size_t *n_changes, |
93419a96 | 263 | int type_or_errno, /* UNIT_FILE_SYMLINK, _UNLINK, _IS_MASKED, _IS_DANGLING if positive or errno if negative */ |
0ec0deaa LP |
264 | const char *path, |
265 | const char *source) { | |
266 | ||
12bf0ae4 | 267 | _cleanup_free_ char *p = NULL, *s = NULL; |
0ec0deaa | 268 | UnitFileChange *c; |
0ec0deaa | 269 | |
0ec0deaa LP |
270 | assert(!changes == !n_changes); |
271 | ||
93419a96 LP |
272 | if (type_or_errno >= 0) |
273 | assert(type_or_errno < _UNIT_FILE_CHANGE_TYPE_MAX); | |
274 | else | |
275 | assert(type_or_errno >= -ERRNO_MAX); | |
276 | ||
0ec0deaa LP |
277 | if (!changes) |
278 | return 0; | |
279 | ||
62d74c78 | 280 | c = reallocarray(*changes, *n_changes + 1, sizeof(UnitFileChange)); |
0ec0deaa LP |
281 | if (!c) |
282 | return -ENOMEM; | |
0ec0deaa | 283 | *changes = c; |
0ec0deaa | 284 | |
3aa96361 ZJS |
285 | if (path) { |
286 | p = strdup(path); | |
287 | if (!p) | |
288 | return -ENOMEM; | |
0ec0deaa | 289 | |
3aa96361 ZJS |
290 | path_simplify(p); |
291 | } | |
93419a96 LP |
292 | |
293 | if (source) { | |
294 | s = strdup(source); | |
295 | if (!s) | |
296 | return -ENOMEM; | |
297 | ||
4ff361cc | 298 | path_simplify(s); |
93419a96 LP |
299 | } |
300 | ||
301 | c[(*n_changes)++] = (UnitFileChange) { | |
302 | .type_or_errno = type_or_errno, | |
303 | .path = TAKE_PTR(p), | |
304 | .source = TAKE_PTR(s), | |
305 | }; | |
0ec0deaa | 306 | |
0ec0deaa LP |
307 | return 0; |
308 | } | |
309 | ||
da6053d0 | 310 | void unit_file_changes_free(UnitFileChange *changes, size_t n_changes) { |
0ec0deaa LP |
311 | assert(changes || n_changes == 0); |
312 | ||
de8be28e | 313 | for (size_t i = 0; i < n_changes; i++) { |
0ec0deaa LP |
314 | free(changes[i].path); |
315 | free(changes[i].source); | |
316 | } | |
317 | ||
318 | free(changes); | |
319 | } | |
320 | ||
da6053d0 | 321 | void unit_file_dump_changes(int r, const char *verb, const UnitFileChange *changes, size_t n_changes, bool quiet) { |
af3d8113 ZJS |
322 | bool logged = false; |
323 | ||
324 | assert(changes || n_changes == 0); | |
325 | /* If verb is not specified, errors are not allowed! */ | |
326 | assert(verb || r >= 0); | |
327 | ||
de8be28e | 328 | for (size_t i = 0; i < n_changes; i++) { |
93419a96 | 329 | assert(verb || changes[i].type_or_errno >= 0); |
af3d8113 | 330 | |
93419a96 | 331 | switch(changes[i].type_or_errno) { |
af3d8113 ZJS |
332 | case UNIT_FILE_SYMLINK: |
333 | if (!quiet) | |
a760db24 ZJS |
334 | log_info("Created symlink %s %s %s.", |
335 | changes[i].path, | |
fc03e80c | 336 | special_glyph(SPECIAL_GLYPH_ARROW_RIGHT), |
a760db24 | 337 | changes[i].source); |
af3d8113 ZJS |
338 | break; |
339 | case UNIT_FILE_UNLINK: | |
340 | if (!quiet) | |
341 | log_info("Removed %s.", changes[i].path); | |
342 | break; | |
343 | case UNIT_FILE_IS_MASKED: | |
344 | if (!quiet) | |
345 | log_info("Unit %s is masked, ignoring.", changes[i].path); | |
346 | break; | |
893275df ZJS |
347 | case UNIT_FILE_IS_DANGLING: |
348 | if (!quiet) | |
349 | log_info("Unit %s is an alias to a unit that is not present, ignoring.", | |
350 | changes[i].path); | |
351 | break; | |
8ae27441 JS |
352 | case UNIT_FILE_DESTINATION_NOT_PRESENT: |
353 | if (!quiet) | |
354 | log_warning("Unit %s is added as a dependency to a non-existent unit %s.", | |
355 | changes[i].source, changes[i].path); | |
356 | break; | |
3aa96361 ZJS |
357 | case UNIT_FILE_AUXILIARY_FAILED: |
358 | if (!quiet) | |
359 | log_warning("Failed to enable auxiliary unit %s, ignoring.", changes[i].source); | |
360 | break; | |
af3d8113 ZJS |
361 | case -EEXIST: |
362 | if (changes[i].source) | |
93419a96 | 363 | log_error_errno(changes[i].type_or_errno, |
af3d8113 ZJS |
364 | "Failed to %s unit, file %s already exists and is a symlink to %s.", |
365 | verb, changes[i].path, changes[i].source); | |
366 | else | |
93419a96 | 367 | log_error_errno(changes[i].type_or_errno, |
af3d8113 ZJS |
368 | "Failed to %s unit, file %s already exists.", |
369 | verb, changes[i].path); | |
370 | logged = true; | |
371 | break; | |
372 | case -ERFKILL: | |
93419a96 | 373 | log_error_errno(changes[i].type_or_errno, "Failed to %s unit, unit %s is masked.", |
af3d8113 ZJS |
374 | verb, changes[i].path); |
375 | logged = true; | |
376 | break; | |
377 | case -EADDRNOTAVAIL: | |
93419a96 | 378 | log_error_errno(changes[i].type_or_errno, "Failed to %s unit, unit %s is transient or generated.", |
af3d8113 ZJS |
379 | verb, changes[i].path); |
380 | logged = true; | |
381 | break; | |
b0ec372a | 382 | case -EIDRM: |
e1f2f7f1 ZJS |
383 | log_error_errno(changes[i].type_or_errno, "Failed to %s %s, destination unit %s is a non-template unit.", |
384 | verb, changes[i].source, changes[i].path); | |
b0ec372a ZJS |
385 | logged = true; |
386 | break; | |
d7ceaf72 | 387 | case -EUCLEAN: |
93419a96 | 388 | log_error_errno(changes[i].type_or_errno, |
d7ceaf72 ZJS |
389 | "Failed to %s unit, \"%s\" is not a valid unit name.", |
390 | verb, changes[i].path); | |
391 | logged = true; | |
392 | break; | |
af3d8113 | 393 | case -ELOOP: |
93419a96 | 394 | log_error_errno(changes[i].type_or_errno, "Failed to %s unit, refusing to operate on linked unit file %s", |
af3d8113 ZJS |
395 | verb, changes[i].path); |
396 | logged = true; | |
397 | break; | |
637d6e5b LP |
398 | |
399 | case -ENOENT: | |
93419a96 | 400 | log_error_errno(changes[i].type_or_errno, "Failed to %s unit, unit %s does not exist.", verb, changes[i].path); |
637d6e5b LP |
401 | logged = true; |
402 | break; | |
403 | ||
af3d8113 | 404 | default: |
93419a96 LP |
405 | assert(changes[i].type_or_errno < 0); |
406 | log_error_errno(changes[i].type_or_errno, "Failed to %s unit, file %s: %m.", | |
af3d8113 ZJS |
407 | verb, changes[i].path); |
408 | logged = true; | |
409 | } | |
410 | } | |
411 | ||
412 | if (r < 0 && !logged) | |
413 | log_error_errno(r, "Failed to %s: %m.", verb); | |
414 | } | |
415 | ||
25ea9277 ZJS |
416 | /** |
417 | * Checks if two paths or symlinks from wd are the same, when root is the root of the filesystem. | |
418 | * wc should be the full path in the host file system. | |
419 | */ | |
420 | static bool chroot_symlinks_same(const char *root, const char *wd, const char *a, const char *b) { | |
421 | assert(path_is_absolute(wd)); | |
422 | ||
423 | /* This will give incorrect results if the paths are relative and go outside | |
424 | * of the chroot. False negatives are possible. */ | |
425 | ||
ae9efab7 ZJS |
426 | if (!root) |
427 | root = "/"; | |
428 | ||
25ea9277 ZJS |
429 | a = strjoina(path_is_absolute(a) ? root : wd, "/", a); |
430 | b = strjoina(path_is_absolute(b) ? root : wd, "/", b); | |
e3f791a2 | 431 | return path_equal_or_files_same(a, b, 0); |
25ea9277 ZJS |
432 | } |
433 | ||
0ec0deaa | 434 | static int create_symlink( |
c3e7fba0 | 435 | const LookupPaths *lp, |
0ec0deaa LP |
436 | const char *old_path, |
437 | const char *new_path, | |
438 | bool force, | |
439 | UnitFileChange **changes, | |
da6053d0 | 440 | size_t *n_changes) { |
0ec0deaa | 441 | |
25ea9277 | 442 | _cleanup_free_ char *dest = NULL, *dirname = NULL; |
60bec8e4 | 443 | const char *rp; |
0ec0deaa LP |
444 | int r; |
445 | ||
446 | assert(old_path); | |
447 | assert(new_path); | |
448 | ||
c3e7fba0 | 449 | rp = skip_root(lp->root_dir, old_path); |
60bec8e4 ZJS |
450 | if (rp) |
451 | old_path = rp; | |
452 | ||
4f5c2485 ZJS |
453 | /* Actually create a symlink, and remember that we did. This function is |
454 | * smart enough to check if there's already a valid symlink in place. | |
85158303 | 455 | * |
4f5c2485 ZJS |
456 | * Returns 1 if a symlink was created or already exists and points to the |
457 | * right place, or negative on error. | |
85158303 | 458 | */ |
0ec0deaa | 459 | |
35cd0ba5 | 460 | (void) mkdir_parents_label(new_path, 0755); |
0ec0deaa LP |
461 | |
462 | if (symlink(old_path, new_path) >= 0) { | |
463 | unit_file_changes_add(changes, n_changes, UNIT_FILE_SYMLINK, new_path, old_path); | |
3de15214 | 464 | return 1; |
0ec0deaa LP |
465 | } |
466 | ||
af3d8113 ZJS |
467 | if (errno != EEXIST) { |
468 | unit_file_changes_add(changes, n_changes, -errno, new_path, NULL); | |
0ec0deaa | 469 | return -errno; |
af3d8113 | 470 | } |
0ec0deaa LP |
471 | |
472 | r = readlink_malloc(new_path, &dest); | |
7d782f26 ZJS |
473 | if (r < 0) { |
474 | /* translate EINVAL (non-symlink exists) to EEXIST */ | |
475 | if (r == -EINVAL) | |
476 | r = -EEXIST; | |
477 | ||
478 | unit_file_changes_add(changes, n_changes, r, new_path, NULL); | |
0ec0deaa | 479 | return r; |
7d782f26 | 480 | } |
0ec0deaa | 481 | |
25ea9277 ZJS |
482 | dirname = dirname_malloc(new_path); |
483 | if (!dirname) | |
484 | return -ENOMEM; | |
485 | ||
c3e7fba0 | 486 | if (chroot_symlinks_same(lp->root_dir, dirname, dest, old_path)) { |
3e8d06d9 | 487 | log_debug("Symlink %s → %s already exists", new_path, dest); |
85158303 | 488 | return 1; |
3e8d06d9 | 489 | } |
0ec0deaa | 490 | |
af3d8113 ZJS |
491 | if (!force) { |
492 | unit_file_changes_add(changes, n_changes, -EEXIST, new_path, dest); | |
0ec0deaa | 493 | return -EEXIST; |
af3d8113 | 494 | } |
0ec0deaa LP |
495 | |
496 | r = symlink_atomic(old_path, new_path); | |
7d782f26 ZJS |
497 | if (r < 0) { |
498 | unit_file_changes_add(changes, n_changes, r, new_path, NULL); | |
0ec0deaa | 499 | return r; |
7d782f26 | 500 | } |
0ec0deaa LP |
501 | |
502 | unit_file_changes_add(changes, n_changes, UNIT_FILE_UNLINK, new_path, NULL); | |
503 | unit_file_changes_add(changes, n_changes, UNIT_FILE_SYMLINK, new_path, old_path); | |
504 | ||
3de15214 | 505 | return 1; |
0ec0deaa LP |
506 | } |
507 | ||
83096483 LP |
508 | static int mark_symlink_for_removal( |
509 | Set **remove_symlinks_to, | |
510 | const char *p) { | |
511 | ||
512 | char *n; | |
513 | int r; | |
514 | ||
515 | assert(p); | |
516 | ||
548f6937 | 517 | r = set_ensure_allocated(remove_symlinks_to, &path_hash_ops); |
83096483 LP |
518 | if (r < 0) |
519 | return r; | |
520 | ||
521 | n = strdup(p); | |
522 | if (!n) | |
523 | return -ENOMEM; | |
524 | ||
4ff361cc | 525 | path_simplify(n); |
83096483 | 526 | |
ef42202a | 527 | r = set_consume(*remove_symlinks_to, n); |
d25e100b LP |
528 | if (r == -EEXIST) |
529 | return 0; | |
ef42202a | 530 | if (r < 0) |
d25e100b | 531 | return r; |
83096483 | 532 | |
0ec0deaa | 533 | return 1; |
83096483 LP |
534 | } |
535 | ||
536 | static int remove_marked_symlinks_fd( | |
537 | Set *remove_symlinks_to, | |
538 | int fd, | |
539 | const char *path, | |
540 | const char *config_path, | |
401017e0 | 541 | const LookupPaths *lp, |
3b3557c4 | 542 | bool dry_run, |
0ec0deaa | 543 | bool *restart, |
83096483 | 544 | UnitFileChange **changes, |
da6053d0 | 545 | size_t *n_changes) { |
83096483 | 546 | |
7fd1b19b | 547 | _cleanup_closedir_ DIR *d = NULL; |
bcafe923 | 548 | int r = 0; |
83096483 LP |
549 | |
550 | assert(remove_symlinks_to); | |
551 | assert(fd >= 0); | |
552 | assert(path); | |
553 | assert(config_path); | |
401017e0 | 554 | assert(lp); |
0ec0deaa | 555 | assert(restart); |
83096483 LP |
556 | |
557 | d = fdopendir(fd); | |
558 | if (!d) { | |
03e334a1 | 559 | safe_close(fd); |
83096483 LP |
560 | return -errno; |
561 | } | |
562 | ||
563 | rewinddir(d); | |
564 | ||
06693181 | 565 | FOREACH_DIRENT(de, d, return -errno) |
83096483 | 566 | |
83096483 | 567 | if (de->d_type == DT_DIR) { |
7fd1b19b | 568 | _cleanup_free_ char *p = NULL; |
d25e100b | 569 | int nfd, q; |
83096483 LP |
570 | |
571 | nfd = openat(fd, de->d_name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW); | |
572 | if (nfd < 0) { | |
573 | if (errno == ENOENT) | |
574 | continue; | |
575 | ||
576 | if (r == 0) | |
577 | r = -errno; | |
578 | continue; | |
579 | } | |
580 | ||
581 | p = path_make_absolute(de->d_name, path); | |
582 | if (!p) { | |
03e334a1 | 583 | safe_close(nfd); |
d9e5e694 | 584 | return -ENOMEM; |
83096483 LP |
585 | } |
586 | ||
587 | /* This will close nfd, regardless whether it succeeds or not */ | |
3b3557c4 | 588 | q = remove_marked_symlinks_fd(remove_symlinks_to, nfd, p, config_path, lp, dry_run, restart, changes, n_changes); |
bcafe923 | 589 | if (q < 0 && r == 0) |
83096483 LP |
590 | r = q; |
591 | ||
592 | } else if (de->d_type == DT_LNK) { | |
7fd1b19b | 593 | _cleanup_free_ char *p = NULL, *dest = NULL; |
401017e0 | 594 | const char *rp; |
83096483 | 595 | bool found; |
0ec0deaa | 596 | int q; |
83096483 | 597 | |
7410616c | 598 | if (!unit_name_is_valid(de->d_name, UNIT_NAME_ANY)) |
bcafe923 LP |
599 | continue; |
600 | ||
83096483 | 601 | p = path_make_absolute(de->d_name, path); |
d9e5e694 ZJS |
602 | if (!p) |
603 | return -ENOMEM; | |
4ff361cc | 604 | path_simplify(p); |
83096483 | 605 | |
66a19d85 | 606 | q = chase_symlinks(p, NULL, CHASE_NONEXISTENT, &dest, NULL); |
401017e0 LP |
607 | if (q == -ENOENT) |
608 | continue; | |
83096483 | 609 | if (q < 0) { |
83096483 LP |
610 | if (r == 0) |
611 | r = q; | |
612 | continue; | |
613 | } | |
614 | ||
401017e0 LP |
615 | /* We remove all links pointing to a file or path that is marked, as well as all files sharing |
616 | * the same name as a file that is marked. */ | |
0ec0deaa | 617 | |
596fc263 | 618 | found = set_contains(remove_symlinks_to, dest) || |
0ec0deaa LP |
619 | set_contains(remove_symlinks_to, basename(dest)) || |
620 | set_contains(remove_symlinks_to, de->d_name); | |
83096483 | 621 | |
1dacfd2a LP |
622 | if (!found) |
623 | continue; | |
83096483 | 624 | |
3b3557c4 JS |
625 | if (!dry_run) { |
626 | if (unlinkat(fd, de->d_name, 0) < 0 && errno != ENOENT) { | |
627 | if (r == 0) | |
628 | r = -errno; | |
629 | unit_file_changes_add(changes, n_changes, -errno, p, NULL); | |
630 | continue; | |
631 | } | |
bcafe923 | 632 | |
3b3557c4 JS |
633 | (void) rmdir_parents(p, config_path); |
634 | } | |
83096483 | 635 | |
0ec0deaa | 636 | unit_file_changes_add(changes, n_changes, UNIT_FILE_UNLINK, p, NULL); |
1dacfd2a | 637 | |
12bf0ae4 ZJS |
638 | /* Now, remember the full path (but with the root prefix removed) of |
639 | * the symlink we just removed, and remove any symlinks to it, too. */ | |
401017e0 | 640 | |
c3e7fba0 | 641 | rp = skip_root(lp->root_dir, p); |
401017e0 | 642 | q = mark_symlink_for_removal(&remove_symlinks_to, rp ?: p); |
0ec0deaa LP |
643 | if (q < 0) |
644 | return q; | |
3b3557c4 | 645 | if (q > 0 && !dry_run) |
0ec0deaa | 646 | *restart = true; |
83096483 | 647 | } |
83096483 | 648 | |
83096483 LP |
649 | return r; |
650 | } | |
651 | ||
652 | static int remove_marked_symlinks( | |
653 | Set *remove_symlinks_to, | |
654 | const char *config_path, | |
401017e0 | 655 | const LookupPaths *lp, |
3b3557c4 | 656 | bool dry_run, |
83096483 | 657 | UnitFileChange **changes, |
da6053d0 | 658 | size_t *n_changes) { |
83096483 | 659 | |
da39f6a6 | 660 | _cleanup_close_ int fd = -1; |
0ec0deaa | 661 | bool restart; |
d25e100b | 662 | int r = 0; |
83096483 LP |
663 | |
664 | assert(config_path); | |
401017e0 | 665 | assert(lp); |
83096483 LP |
666 | |
667 | if (set_size(remove_symlinks_to) <= 0) | |
668 | return 0; | |
669 | ||
67852d08 | 670 | fd = open(config_path, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC); |
83096483 | 671 | if (fd < 0) |
32d9493e | 672 | return errno == ENOENT ? 0 : -errno; |
83096483 LP |
673 | |
674 | do { | |
675 | int q, cfd; | |
0ec0deaa | 676 | restart = false; |
83096483 | 677 | |
ead34950 | 678 | cfd = fcntl(fd, F_DUPFD_CLOEXEC, 3); |
d25e100b LP |
679 | if (cfd < 0) |
680 | return -errno; | |
83096483 LP |
681 | |
682 | /* This takes possession of cfd and closes it */ | |
3b3557c4 | 683 | q = remove_marked_symlinks_fd(remove_symlinks_to, cfd, config_path, config_path, lp, dry_run, &restart, changes, n_changes); |
83096483 LP |
684 | if (r == 0) |
685 | r = q; | |
0ec0deaa | 686 | } while (restart); |
83096483 | 687 | |
83096483 LP |
688 | return r; |
689 | } | |
690 | ||
d5c30911 | 691 | static int is_symlink_with_known_name(const UnitFileInstallInfo *i, const char *name) { |
5cd8ae31 ZJS |
692 | int r; |
693 | ||
694 | if (streq(name, i->name)) | |
695 | return true; | |
696 | ||
697 | if (strv_contains(i->aliases, name)) | |
698 | return true; | |
699 | ||
700 | /* Look for template symlink matching DefaultInstance */ | |
701 | if (i->default_instance && unit_name_is_valid(i->name, UNIT_NAME_TEMPLATE)) { | |
702 | _cleanup_free_ char *s = NULL; | |
703 | ||
704 | r = unit_name_replace_instance(i->name, i->default_instance, &s); | |
705 | if (r < 0) { | |
706 | if (r != -EINVAL) | |
707 | return r; | |
708 | ||
709 | } else if (streq(name, s)) | |
710 | return true; | |
711 | } | |
712 | ||
713 | return false; | |
714 | } | |
715 | ||
43b4e305 MS |
716 | static int find_symlinks_in_directory( |
717 | DIR *dir, | |
718 | const char *dir_path, | |
0ec0deaa | 719 | const char *root_dir, |
26526f98 | 720 | const UnitFileInstallInfo *i, |
d9b4b48f | 721 | bool match_aliases, |
4b37c89f | 722 | bool ignore_same_name, |
83096483 LP |
723 | const char *config_path, |
724 | bool *same_name_link) { | |
725 | ||
d25e100b | 726 | int r = 0; |
83096483 | 727 | |
43b4e305 MS |
728 | FOREACH_DIRENT(de, dir, return -errno) { |
729 | _cleanup_free_ char *dest = NULL; | |
730 | bool found_path = false, found_dest, b = false; | |
731 | int q; | |
83096483 | 732 | |
43b4e305 MS |
733 | if (de->d_type != DT_LNK) |
734 | continue; | |
83096483 | 735 | |
43b4e305 MS |
736 | /* Acquire symlink destination */ |
737 | q = readlinkat_malloc(dirfd(dir), de->d_name, &dest); | |
738 | if (q == -ENOENT) | |
739 | continue; | |
740 | if (q < 0) { | |
83096483 LP |
741 | if (r == 0) |
742 | r = q; | |
43b4e305 MS |
743 | continue; |
744 | } | |
83096483 | 745 | |
43b4e305 MS |
746 | /* Make absolute */ |
747 | if (!path_is_absolute(dest)) { | |
748 | char *x; | |
83096483 | 749 | |
43b4e305 MS |
750 | x = path_join(dir_path, dest); |
751 | if (!x) | |
ea55addc | 752 | return -ENOMEM; |
83096483 | 753 | |
43b4e305 MS |
754 | free_and_replace(dest, x); |
755 | } | |
83096483 | 756 | |
43b4e305 MS |
757 | assert(unit_name_is_valid(i->name, UNIT_NAME_ANY)); |
758 | if (!ignore_same_name) | |
759 | /* Check if the symlink itself matches what we are looking for. | |
760 | * | |
761 | * If ignore_same_name is specified, we are in one of the directories which | |
762 | * have lower priority than the unit file, and even if a file or symlink with | |
763 | * this name was found, we should ignore it. */ | |
764 | found_path = streq(de->d_name, i->name); | |
0ec0deaa | 765 | |
43b4e305 MS |
766 | /* Check if what the symlink points to matches what we are looking for */ |
767 | found_dest = streq(basename(dest), i->name); | |
0ec0deaa | 768 | |
43b4e305 MS |
769 | if (found_path && found_dest) { |
770 | _cleanup_free_ char *p = NULL, *t = NULL; | |
0ec0deaa | 771 | |
43b4e305 MS |
772 | /* Filter out same name links in the main |
773 | * config path */ | |
774 | p = path_make_absolute(de->d_name, dir_path); | |
775 | t = path_make_absolute(i->name, config_path); | |
83096483 | 776 | |
43b4e305 MS |
777 | if (!p || !t) |
778 | return -ENOMEM; | |
83096483 | 779 | |
43b4e305 MS |
780 | b = path_equal(p, t); |
781 | } | |
83096483 | 782 | |
43b4e305 MS |
783 | if (b) |
784 | *same_name_link = true; | |
785 | else if (found_path || found_dest) { | |
786 | if (!match_aliases) | |
787 | return 1; | |
83096483 | 788 | |
43b4e305 MS |
789 | /* Check if symlink name is in the set of names used by [Install] */ |
790 | q = is_symlink_with_known_name(i, de->d_name); | |
791 | if (q < 0) | |
792 | return q; | |
793 | if (q > 0) | |
794 | return 1; | |
83096483 LP |
795 | } |
796 | } | |
d25e100b LP |
797 | |
798 | return r; | |
83096483 LP |
799 | } |
800 | ||
801 | static int find_symlinks( | |
0ec0deaa | 802 | const char *root_dir, |
26526f98 | 803 | const UnitFileInstallInfo *i, |
d9b4b48f | 804 | bool match_name, |
4b37c89f | 805 | bool ignore_same_name, |
83096483 LP |
806 | const char *config_path, |
807 | bool *same_name_link) { | |
808 | ||
43b4e305 | 809 | _cleanup_closedir_ DIR *config_dir = NULL; |
43b4e305 | 810 | int r = 0; |
83096483 | 811 | |
5cd8ae31 | 812 | assert(i); |
83096483 LP |
813 | assert(config_path); |
814 | assert(same_name_link); | |
815 | ||
43b4e305 MS |
816 | config_dir = opendir(config_path); |
817 | if (!config_dir) { | |
a1feacf7 | 818 | if (IN_SET(errno, ENOENT, ENOTDIR, EACCES)) |
d5891fda | 819 | return 0; |
83096483 | 820 | return -errno; |
d5891fda | 821 | } |
83096483 | 822 | |
43b4e305 MS |
823 | FOREACH_DIRENT(de, config_dir, return -errno) { |
824 | const char *suffix; | |
825 | _cleanup_free_ const char *path = NULL; | |
826 | _cleanup_closedir_ DIR *d = NULL; | |
827 | ||
43b4e305 MS |
828 | if (de->d_type != DT_DIR) |
829 | continue; | |
830 | ||
831 | suffix = strrchr(de->d_name, '.'); | |
832 | if (!STRPTR_IN_SET(suffix, ".wants", ".requires")) | |
833 | continue; | |
834 | ||
835 | path = path_join(config_path, de->d_name); | |
836 | if (!path) | |
837 | return -ENOMEM; | |
838 | ||
839 | d = opendir(path); | |
840 | if (!d) { | |
841 | log_error_errno(errno, "Failed to open directory '%s' while scanning for symlinks, ignoring: %m", path); | |
842 | continue; | |
843 | } | |
844 | ||
845 | r = find_symlinks_in_directory(d, path, root_dir, i, match_name, ignore_same_name, config_path, same_name_link); | |
846 | if (r > 0) | |
847 | return 1; | |
848 | else if (r < 0) | |
849 | log_debug_errno(r, "Failed to lookup for symlinks in '%s': %m", path); | |
850 | } | |
851 | ||
852 | /* We didn't find any suitable symlinks in .wants or .requires directories, let's look for linked unit files in this directory. */ | |
853 | rewinddir(config_dir); | |
854 | return find_symlinks_in_directory(config_dir, config_path, root_dir, i, match_name, ignore_same_name, config_path, same_name_link); | |
83096483 LP |
855 | } |
856 | ||
857 | static int find_symlinks_in_scope( | |
d2561cfd | 858 | UnitFileScope scope, |
c3e7fba0 | 859 | const LookupPaths *lp, |
26526f98 | 860 | const UnitFileInstallInfo *i, |
d9b4b48f | 861 | bool match_name, |
83096483 LP |
862 | UnitFileState *state) { |
863 | ||
dfead90d LP |
864 | bool same_name_link_runtime = false, same_name_link_config = false; |
865 | bool enabled_in_runtime = false, enabled_at_all = false; | |
4b37c89f | 866 | bool ignore_same_name = false; |
0ec0deaa | 867 | int r; |
83096483 | 868 | |
c3e7fba0 | 869 | assert(lp); |
5cd8ae31 | 870 | assert(i); |
83096483 | 871 | |
c3e7fba0 | 872 | /* As we iterate over the list of search paths in lp->search_path, we may encounter "same name" |
4b37c89f | 873 | * symlinks. The ones which are "below" (i.e. have lower priority) than the unit file itself are |
5238e957 | 874 | * effectively masked, so we should ignore them. */ |
4b37c89f | 875 | |
c3e7fba0 | 876 | STRV_FOREACH(p, lp->search_path) { |
dfead90d LP |
877 | bool same_name_link = false; |
878 | ||
c3e7fba0 | 879 | r = find_symlinks(lp->root_dir, i, match_name, ignore_same_name, *p, &same_name_link); |
dfead90d LP |
880 | if (r < 0) |
881 | return r; | |
882 | if (r > 0) { | |
883 | /* We found symlinks in this dir? Yay! Let's see where precisely it is enabled. */ | |
884 | ||
c3e7fba0 | 885 | if (path_equal_ptr(*p, lp->persistent_config)) { |
dfead90d LP |
886 | /* This is the best outcome, let's return it immediately. */ |
887 | *state = UNIT_FILE_ENABLED; | |
888 | return 1; | |
889 | } | |
890 | ||
bb2682bc | 891 | /* look for global enablement of user units */ |
d2561cfd ZJS |
892 | if (scope == UNIT_FILE_USER && path_is_user_config_dir(*p)) { |
893 | *state = UNIT_FILE_ENABLED; | |
894 | return 1; | |
895 | } | |
896 | ||
c3e7fba0 | 897 | r = path_is_runtime(lp, *p, false); |
dfead90d LP |
898 | if (r < 0) |
899 | return r; | |
900 | if (r > 0) | |
901 | enabled_in_runtime = true; | |
902 | else | |
903 | enabled_at_all = true; | |
904 | ||
905 | } else if (same_name_link) { | |
c3e7fba0 | 906 | if (path_equal_ptr(*p, lp->persistent_config)) |
dfead90d LP |
907 | same_name_link_config = true; |
908 | else { | |
c3e7fba0 | 909 | r = path_is_runtime(lp, *p, false); |
dfead90d LP |
910 | if (r < 0) |
911 | return r; | |
912 | if (r > 0) | |
913 | same_name_link_runtime = true; | |
914 | } | |
915 | } | |
4b37c89f ZJS |
916 | |
917 | /* Check if next iteration will be "below" the unit file (either a regular file | |
918 | * or a symlink), and hence should be ignored */ | |
919 | if (!ignore_same_name && path_startswith(i->path, *p)) | |
920 | ignore_same_name = true; | |
83096483 LP |
921 | } |
922 | ||
dfead90d | 923 | if (enabled_in_runtime) { |
0ec0deaa | 924 | *state = UNIT_FILE_ENABLED_RUNTIME; |
dfead90d LP |
925 | return 1; |
926 | } | |
927 | ||
928 | /* Here's a special rule: if the unit we are looking for is an instance, and it symlinked in the search path | |
929 | * outside of runtime and configuration directory, then we consider it statically enabled. Note we do that only | |
930 | * for instance, not for regular names, as those are merely aliases, while instances explicitly instantiate | |
931 | * something, and hence are a much stronger concept. */ | |
5cd8ae31 | 932 | if (enabled_at_all && unit_name_is_valid(i->name, UNIT_NAME_INSTANCE)) { |
dfead90d LP |
933 | *state = UNIT_FILE_STATIC; |
934 | return 1; | |
83096483 LP |
935 | } |
936 | ||
937 | /* Hmm, we didn't find it, but maybe we found the same name | |
938 | * link? */ | |
dfead90d | 939 | if (same_name_link_config) { |
0ec0deaa LP |
940 | *state = UNIT_FILE_LINKED; |
941 | return 1; | |
942 | } | |
83096483 LP |
943 | if (same_name_link_runtime) { |
944 | *state = UNIT_FILE_LINKED_RUNTIME; | |
945 | return 1; | |
83096483 LP |
946 | } |
947 | ||
948 | return 0; | |
949 | } | |
950 | ||
0ec0deaa | 951 | static void install_info_free(UnitFileInstallInfo *i) { |
83096483 | 952 | |
0ec0deaa LP |
953 | if (!i) |
954 | return; | |
83096483 | 955 | |
0ec0deaa LP |
956 | free(i->name); |
957 | free(i->path); | |
de61a04b | 958 | free(i->root); |
0ec0deaa LP |
959 | strv_free(i->aliases); |
960 | strv_free(i->wanted_by); | |
961 | strv_free(i->required_by); | |
962 | strv_free(i->also); | |
963 | free(i->default_instance); | |
964 | free(i->symlink_target); | |
965 | free(i); | |
966 | } | |
83096483 | 967 | |
0ec0deaa LP |
968 | static void install_context_done(InstallContext *c) { |
969 | assert(c); | |
83096483 | 970 | |
224b0e7a ZJS |
971 | c->will_process = ordered_hashmap_free_with_destructor(c->will_process, install_info_free); |
972 | c->have_processed = ordered_hashmap_free_with_destructor(c->have_processed, install_info_free); | |
0ec0deaa | 973 | } |
83096483 | 974 | |
0ec0deaa LP |
975 | static UnitFileInstallInfo *install_info_find(InstallContext *c, const char *name) { |
976 | UnitFileInstallInfo *i; | |
83096483 | 977 | |
0ec0deaa LP |
978 | i = ordered_hashmap_get(c->have_processed, name); |
979 | if (i) | |
980 | return i; | |
83096483 | 981 | |
0ec0deaa | 982 | return ordered_hashmap_get(c->will_process, name); |
83096483 LP |
983 | } |
984 | ||
af3d8113 | 985 | static int install_info_may_process( |
26526f98 | 986 | const UnitFileInstallInfo *i, |
c3e7fba0 | 987 | const LookupPaths *lp, |
af3d8113 | 988 | UnitFileChange **changes, |
da6053d0 | 989 | size_t *n_changes) { |
76adb5b8 | 990 | assert(i); |
c3e7fba0 | 991 | assert(lp); |
76adb5b8 | 992 | |
047d91f9 ZJS |
993 | /* Checks whether the loaded unit file is one we should process, or is masked, |
994 | * transient or generated and thus not subject to enable/disable operations. */ | |
76adb5b8 | 995 | |
af3d8113 ZJS |
996 | if (i->type == UNIT_FILE_TYPE_MASKED) { |
997 | unit_file_changes_add(changes, n_changes, -ERFKILL, i->path, NULL); | |
76ec966f | 998 | return -ERFKILL; |
af3d8113 | 999 | } |
c3e7fba0 ZJS |
1000 | if (path_is_generator(lp, i->path) || |
1001 | path_is_transient(lp, i->path)) { | |
af3d8113 | 1002 | unit_file_changes_add(changes, n_changes, -EADDRNOTAVAIL, i->path, NULL); |
76adb5b8 | 1003 | return -EADDRNOTAVAIL; |
af3d8113 | 1004 | } |
76adb5b8 LP |
1005 | |
1006 | return 0; | |
1007 | } | |
1008 | ||
ff56349d ZJS |
1009 | /** |
1010 | * Adds a new UnitFileInstallInfo entry under name in the InstallContext.will_process | |
1011 | * hashmap, or retrieves the existing one if already present. | |
19539807 ZJS |
1012 | * |
1013 | * Returns negative on error, 0 if the unit was already known, 1 otherwise. | |
ff56349d | 1014 | */ |
83096483 LP |
1015 | static int install_info_add( |
1016 | InstallContext *c, | |
1017 | const char *name, | |
0ec0deaa | 1018 | const char *path, |
de61a04b | 1019 | const char *root, |
19539807 | 1020 | bool auxiliary, |
0ec0deaa LP |
1021 | UnitFileInstallInfo **ret) { |
1022 | ||
cab6235f | 1023 | UnitFileInstallInfo *i = NULL; |
83096483 LP |
1024 | int r; |
1025 | ||
1026 | assert(c); | |
83096483 | 1027 | |
08f46856 BR |
1028 | if (!name) { |
1029 | /* 'name' and 'path' must not both be null. Check here 'path' using assert_se() to | |
1030 | * workaround a bug in gcc that generates a -Wnonnull warning when calling basename(), | |
1031 | * but this cannot be possible in any code path (See #6119). */ | |
1032 | assert_se(path); | |
2b6bf07d | 1033 | name = basename(path); |
08f46856 | 1034 | } |
83096483 | 1035 | |
7410616c | 1036 | if (!unit_name_is_valid(name, UNIT_NAME_ANY)) |
83096483 LP |
1037 | return -EINVAL; |
1038 | ||
0ec0deaa LP |
1039 | i = install_info_find(c, name); |
1040 | if (i) { | |
19539807 ZJS |
1041 | i->auxiliary = i->auxiliary && auxiliary; |
1042 | ||
0ec0deaa LP |
1043 | if (ret) |
1044 | *ret = i; | |
83096483 | 1045 | return 0; |
0ec0deaa | 1046 | } |
83096483 | 1047 | |
d23aeead | 1048 | i = new(UnitFileInstallInfo, 1); |
83096483 LP |
1049 | if (!i) |
1050 | return -ENOMEM; | |
d23aeead LP |
1051 | |
1052 | *i = (UnitFileInstallInfo) { | |
1053 | .type = _UNIT_FILE_TYPE_INVALID, | |
1054 | .auxiliary = auxiliary, | |
1055 | }; | |
83096483 LP |
1056 | |
1057 | i->name = strdup(name); | |
1058 | if (!i->name) { | |
1059 | r = -ENOMEM; | |
1060 | goto fail; | |
1061 | } | |
1062 | ||
de61a04b LP |
1063 | if (root) { |
1064 | i->root = strdup(root); | |
1065 | if (!i->root) { | |
1066 | r = -ENOMEM; | |
1067 | goto fail; | |
1068 | } | |
1069 | } | |
1070 | ||
83096483 LP |
1071 | if (path) { |
1072 | i->path = strdup(path); | |
1073 | if (!i->path) { | |
1074 | r = -ENOMEM; | |
1075 | goto fail; | |
1076 | } | |
1077 | } | |
1078 | ||
0b83974b | 1079 | r = ordered_hashmap_ensure_put(&c->will_process, &string_hash_ops, i->name, i); |
83096483 LP |
1080 | if (r < 0) |
1081 | goto fail; | |
1082 | ||
0ec0deaa LP |
1083 | if (ret) |
1084 | *ret = i; | |
1085 | ||
19539807 | 1086 | return 1; |
83096483 LP |
1087 | |
1088 | fail: | |
d25e100b | 1089 | install_info_free(i); |
83096483 LP |
1090 | return r; |
1091 | } | |
1092 | ||
a7724589 ZJS |
1093 | static int config_parse_alias( |
1094 | const char *unit, | |
1095 | const char *filename, | |
1096 | unsigned line, | |
1097 | const char *section, | |
1098 | unsigned section_line, | |
1099 | const char *lvalue, | |
1100 | int ltype, | |
1101 | const char *rvalue, | |
1102 | void *data, | |
1103 | void *userdata) { | |
1104 | ||
a7724589 ZJS |
1105 | UnitType type; |
1106 | ||
142468d8 | 1107 | assert(unit); |
a7724589 ZJS |
1108 | assert(filename); |
1109 | assert(lvalue); | |
1110 | assert(rvalue); | |
1111 | ||
142468d8 | 1112 | type = unit_name_to_type(unit); |
a7724589 ZJS |
1113 | if (!unit_type_may_alias(type)) |
1114 | return log_syntax(unit, LOG_WARNING, filename, line, 0, | |
3b8769bd | 1115 | "Alias= is not allowed for %s units, ignoring.", |
a7724589 ZJS |
1116 | unit_type_to_string(type)); |
1117 | ||
1118 | return config_parse_strv(unit, filename, line, section, section_line, | |
1119 | lvalue, ltype, rvalue, data, userdata); | |
1120 | } | |
1121 | ||
d54c4993 LP |
1122 | static int config_parse_also( |
1123 | const char *unit, | |
1124 | const char *filename, | |
1125 | unsigned line, | |
1126 | const char *section, | |
1127 | unsigned section_line, | |
1128 | const char *lvalue, | |
1129 | int ltype, | |
1130 | const char *rvalue, | |
1131 | void *data, | |
1132 | void *userdata) { | |
83096483 | 1133 | |
972f3176 | 1134 | UnitFileInstallInfo *info = userdata; |
0ec0deaa LP |
1135 | InstallContext *c = data; |
1136 | int r; | |
83096483 | 1137 | |
142468d8 | 1138 | assert(unit); |
83096483 LP |
1139 | assert(filename); |
1140 | assert(lvalue); | |
1141 | assert(rvalue); | |
1142 | ||
0ec0deaa | 1143 | for (;;) { |
a6612e65 | 1144 | _cleanup_free_ char *word = NULL, *printed = NULL; |
03da6513 | 1145 | |
0ec0deaa LP |
1146 | r = extract_first_word(&rvalue, &word, NULL, 0); |
1147 | if (r < 0) | |
1148 | return r; | |
03da6513 SS |
1149 | if (r == 0) |
1150 | break; | |
83096483 | 1151 | |
de61a04b | 1152 | r = install_name_printf(info, word, info->root, &printed); |
d9e5e694 | 1153 | if (r < 0) |
83096483 | 1154 | return r; |
aedd4012 | 1155 | |
de61a04b | 1156 | r = install_info_add(c, printed, NULL, info->root, /* auxiliary= */ true, NULL); |
d9e5e694 | 1157 | if (r < 0) |
83096483 | 1158 | return r; |
aedd4012 | 1159 | |
a6612e65 | 1160 | r = strv_push(&info->also, printed); |
aedd4012 JS |
1161 | if (r < 0) |
1162 | return r; | |
0ec0deaa | 1163 | |
a6612e65 | 1164 | printed = NULL; |
83096483 LP |
1165 | } |
1166 | ||
1167 | return 0; | |
1168 | } | |
1169 | ||
d54c4993 LP |
1170 | static int config_parse_default_instance( |
1171 | const char *unit, | |
1172 | const char *filename, | |
1173 | unsigned line, | |
1174 | const char *section, | |
1175 | unsigned section_line, | |
1176 | const char *lvalue, | |
1177 | int ltype, | |
1178 | const char *rvalue, | |
1179 | void *data, | |
1180 | void *userdata) { | |
1181 | ||
cab6235f | 1182 | UnitFileInstallInfo *i = data; |
d7604756 | 1183 | _cleanup_free_ char *printed = NULL; |
d54c4993 LP |
1184 | int r; |
1185 | ||
142468d8 | 1186 | assert(unit); |
d54c4993 LP |
1187 | assert(filename); |
1188 | assert(lvalue); | |
1189 | assert(rvalue); | |
1190 | ||
142468d8 | 1191 | if (unit_name_is_valid(unit, UNIT_NAME_INSTANCE)) |
6597fa61 ZJS |
1192 | /* When enabling an instance, we might be using a template unit file, |
1193 | * but we should ignore DefaultInstance silently. */ | |
1194 | return 0; | |
142468d8 | 1195 | if (!unit_name_is_valid(unit, UNIT_NAME_TEMPLATE)) |
6597fa61 | 1196 | return log_syntax(unit, LOG_WARNING, filename, line, 0, |
10d67460 | 1197 | "DefaultInstance= only makes sense for template units, ignoring."); |
6597fa61 | 1198 | |
de61a04b | 1199 | r = install_name_printf(i, rvalue, i->root, &printed); |
d54c4993 LP |
1200 | if (r < 0) |
1201 | return r; | |
1202 | ||
b5395600 JR |
1203 | if (isempty(printed)) { |
1204 | i->default_instance = mfree(i->default_instance); | |
1205 | return 0; | |
1206 | } | |
1207 | ||
d7604756 | 1208 | if (!unit_instance_is_valid(printed)) |
e5171296 ZJS |
1209 | return log_syntax(unit, LOG_WARNING, filename, line, SYNTHETIC_ERRNO(EINVAL), |
1210 | "Invalid DefaultInstance= value \"%s\".", printed); | |
d54c4993 | 1211 | |
3b319885 | 1212 | return free_and_replace(i->default_instance, printed); |
d54c4993 LP |
1213 | } |
1214 | ||
83096483 LP |
1215 | static int unit_file_load( |
1216 | InstallContext *c, | |
cab6235f | 1217 | UnitFileInstallInfo *info, |
83096483 | 1218 | const char *path, |
d04a9386 | 1219 | const char *root_dir, |
0ec0deaa | 1220 | SearchFlags flags) { |
83096483 | 1221 | |
f975e971 | 1222 | const ConfigTableItem items[] = { |
a7724589 | 1223 | { "Install", "Alias", config_parse_alias, 0, &info->aliases }, |
d54c4993 LP |
1224 | { "Install", "WantedBy", config_parse_strv, 0, &info->wanted_by }, |
1225 | { "Install", "RequiredBy", config_parse_strv, 0, &info->required_by }, | |
1226 | { "Install", "DefaultInstance", config_parse_default_instance, 0, info }, | |
1227 | { "Install", "Also", config_parse_also, 0, c }, | |
d54c4993 | 1228 | {} |
83096483 LP |
1229 | }; |
1230 | ||
133e5b36 | 1231 | UnitType type; |
7fd1b19b | 1232 | _cleanup_fclose_ FILE *f = NULL; |
0ec0deaa LP |
1233 | _cleanup_close_ int fd = -1; |
1234 | struct stat st; | |
1235 | int r; | |
83096483 | 1236 | |
83096483 LP |
1237 | assert(info); |
1238 | assert(path); | |
1239 | ||
d04a9386 LP |
1240 | if (!(flags & SEARCH_DROPIN)) { |
1241 | /* Loading or checking for the main unit file… */ | |
133e5b36 | 1242 | |
d04a9386 LP |
1243 | type = unit_name_to_type(info->name); |
1244 | if (type < 0) | |
1245 | return -EINVAL; | |
baaa35ad ZJS |
1246 | if (unit_name_is_valid(info->name, UNIT_NAME_TEMPLATE|UNIT_NAME_INSTANCE) && !unit_type_may_template(type)) |
1247 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), | |
bce84e10 | 1248 | "%s: unit type %s cannot be templated, ignoring.", path, unit_type_to_string(type)); |
d04a9386 LP |
1249 | |
1250 | if (!(flags & SEARCH_LOAD)) { | |
4276749d | 1251 | if (lstat(path, &st) < 0) |
d04a9386 LP |
1252 | return -errno; |
1253 | ||
1254 | if (null_or_empty(&st)) | |
1255 | info->type = UNIT_FILE_TYPE_MASKED; | |
1256 | else if (S_ISREG(st.st_mode)) | |
1257 | info->type = UNIT_FILE_TYPE_REGULAR; | |
1258 | else if (S_ISLNK(st.st_mode)) | |
1259 | return -ELOOP; | |
1260 | else if (S_ISDIR(st.st_mode)) | |
1261 | return -EISDIR; | |
1262 | else | |
1263 | return -ENOTTY; | |
1264 | ||
1265 | return 0; | |
1266 | } | |
1267 | ||
1268 | fd = open(path, O_RDONLY|O_CLOEXEC|O_NOCTTY|O_NOFOLLOW); | |
1269 | if (fd < 0) | |
d25e100b | 1270 | return -errno; |
d04a9386 LP |
1271 | } else { |
1272 | /* 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 | 1273 | |
d04a9386 LP |
1274 | if (!(flags & SEARCH_LOAD)) |
1275 | return 0; | |
0ec0deaa | 1276 | |
d04a9386 LP |
1277 | fd = chase_symlinks_and_open(path, root_dir, 0, O_RDONLY|O_CLOEXEC|O_NOCTTY, NULL); |
1278 | if (fd < 0) | |
1279 | return fd; | |
e94937df LN |
1280 | } |
1281 | ||
0ec0deaa LP |
1282 | if (fstat(fd, &st) < 0) |
1283 | return -errno; | |
d04a9386 | 1284 | |
0ec0deaa | 1285 | if (null_or_empty(&st)) { |
d04a9386 LP |
1286 | if ((flags & SEARCH_DROPIN) == 0) |
1287 | info->type = UNIT_FILE_TYPE_MASKED; | |
1288 | ||
0ec0deaa LP |
1289 | return 0; |
1290 | } | |
3cc44114 LP |
1291 | |
1292 | r = stat_verify_regular(&st); | |
1293 | if (r < 0) | |
1294 | return r; | |
83096483 | 1295 | |
4fa744a3 | 1296 | f = take_fdopen(&fd, "r"); |
0ec0deaa LP |
1297 | if (!f) |
1298 | return -errno; | |
83096483 | 1299 | |
d04a9386 LP |
1300 | /* c is only needed if we actually load the file (it's referenced from items[] btw, in case you wonder.) */ |
1301 | assert(c); | |
1302 | ||
142468d8 | 1303 | r = config_parse(info->name, path, f, |
f4331d0d ZJS |
1304 | "Install\0" |
1305 | "-Unit\0" | |
1306 | "-Automount\0" | |
1307 | "-Device\0" | |
1308 | "-Mount\0" | |
1309 | "-Path\0" | |
1310 | "-Scope\0" | |
1311 | "-Service\0" | |
1312 | "-Slice\0" | |
1313 | "-Socket\0" | |
1314 | "-Swap\0" | |
1315 | "-Target\0" | |
1316 | "-Timer\0", | |
36f822c4 | 1317 | config_item_table_lookup, items, |
7ade8982 | 1318 | 0, info, |
4f9ff96a | 1319 | NULL); |
83096483 | 1320 | if (r < 0) |
59108fbe | 1321 | return log_debug_errno(r, "Failed to parse %s: %m", info->name); |
83096483 | 1322 | |
d04a9386 LP |
1323 | if ((flags & SEARCH_DROPIN) == 0) |
1324 | info->type = UNIT_FILE_TYPE_REGULAR; | |
aedd4012 | 1325 | |
78d54bd4 | 1326 | return |
693eb9a2 LP |
1327 | (int) strv_length(info->aliases) + |
1328 | (int) strv_length(info->wanted_by) + | |
1329 | (int) strv_length(info->required_by); | |
83096483 LP |
1330 | } |
1331 | ||
0ec0deaa LP |
1332 | static int unit_file_load_or_readlink( |
1333 | InstallContext *c, | |
1334 | UnitFileInstallInfo *info, | |
1335 | const char *path, | |
c3e7fba0 | 1336 | const LookupPaths *lp, |
0ec0deaa | 1337 | SearchFlags flags) { |
0efaa484 | 1338 | |
4276749d | 1339 | _cleanup_free_ char *resolved = NULL; |
0ec0deaa LP |
1340 | int r; |
1341 | ||
c3e7fba0 | 1342 | r = unit_file_load(c, info, path, lp->root_dir, flags); |
d04a9386 | 1343 | if (r != -ELOOP || (flags & SEARCH_DROPIN)) |
0ec0deaa LP |
1344 | return r; |
1345 | ||
c3e7fba0 | 1346 | r = chase_symlinks(path, lp->root_dir, CHASE_WARN | CHASE_NONEXISTENT, &resolved, NULL); |
4276749d | 1347 | if (r >= 0 && |
c3e7fba0 ZJS |
1348 | lp->root_dir && |
1349 | path_equal_ptr(path_startswith(resolved, lp->root_dir), "dev/null")) | |
4276749d ZJS |
1350 | /* When looking under root_dir, we can't expect /dev/ to be mounted, |
1351 | * so let's see if the path is a (possibly dangling) symlink to /dev/null. */ | |
0ec0deaa | 1352 | info->type = UNIT_FILE_TYPE_MASKED; |
4276749d | 1353 | |
0efaa484 | 1354 | else if (r > 0 && null_or_empty_path(resolved) > 0) |
4276749d ZJS |
1355 | |
1356 | info->type = UNIT_FILE_TYPE_MASKED; | |
1357 | ||
0ec0deaa | 1358 | else { |
640f3b14 | 1359 | _cleanup_free_ char *target = NULL; |
0ec0deaa LP |
1360 | const char *bn; |
1361 | UnitType a, b; | |
1362 | ||
4276749d ZJS |
1363 | /* This is a symlink, let's read it. We read the link again, because last time |
1364 | * we followed the link until resolution, and here we need to do one step. */ | |
640f3b14 AZ |
1365 | |
1366 | r = readlink_malloc(path, &target); | |
1367 | if (r < 0) | |
1368 | return r; | |
1369 | ||
401017e0 | 1370 | bn = basename(target); |
0ec0deaa LP |
1371 | |
1372 | if (unit_name_is_valid(info->name, UNIT_NAME_PLAIN)) { | |
1373 | ||
1374 | if (!unit_name_is_valid(bn, UNIT_NAME_PLAIN)) | |
1375 | return -EINVAL; | |
1376 | ||
1377 | } else if (unit_name_is_valid(info->name, UNIT_NAME_INSTANCE)) { | |
1378 | ||
1379 | if (!unit_name_is_valid(bn, UNIT_NAME_INSTANCE|UNIT_NAME_TEMPLATE)) | |
1380 | return -EINVAL; | |
1381 | ||
1382 | } else if (unit_name_is_valid(info->name, UNIT_NAME_TEMPLATE)) { | |
1383 | ||
1384 | if (!unit_name_is_valid(bn, UNIT_NAME_TEMPLATE)) | |
1385 | return -EINVAL; | |
1386 | } else | |
1387 | return -EINVAL; | |
1388 | ||
1389 | /* Enforce that the symlink destination does not | |
1390 | * change the unit file type. */ | |
1391 | ||
1392 | a = unit_name_to_type(info->name); | |
1393 | b = unit_name_to_type(bn); | |
1394 | if (a < 0 || b < 0 || a != b) | |
1395 | return -EINVAL; | |
1396 | ||
401017e0 LP |
1397 | if (path_is_absolute(target)) |
1398 | /* This is an absolute path, prefix the root so that we always deal with fully qualified paths */ | |
c3e7fba0 | 1399 | info->symlink_target = path_join(lp->root_dir, target); |
401017e0 LP |
1400 | else |
1401 | /* This is a relative path, take it relative to the dir the symlink is located in. */ | |
1402 | info->symlink_target = file_in_same_dir(path, target); | |
1403 | if (!info->symlink_target) | |
1404 | return -ENOMEM; | |
1405 | ||
0ec0deaa | 1406 | info->type = UNIT_FILE_TYPE_SYMLINK; |
0ec0deaa LP |
1407 | } |
1408 | ||
1409 | return 0; | |
1410 | } | |
1411 | ||
83096483 LP |
1412 | static int unit_file_search( |
1413 | InstallContext *c, | |
cab6235f | 1414 | UnitFileInstallInfo *info, |
c3e7fba0 | 1415 | const LookupPaths *lp, |
0ec0deaa | 1416 | SearchFlags flags) { |
83096483 | 1417 | |
d04a9386 LP |
1418 | const char *dropin_dir_name = NULL, *dropin_template_dir_name = NULL; |
1419 | _cleanup_strv_free_ char **dirs = NULL, **files = NULL; | |
64f9280e | 1420 | _cleanup_free_ char *template = NULL; |
142468d8 | 1421 | bool found_unit = false; |
d04a9386 | 1422 | int r, result; |
83096483 | 1423 | |
83096483 | 1424 | assert(info); |
c3e7fba0 | 1425 | assert(lp); |
83096483 | 1426 | |
0ec0deaa LP |
1427 | /* Was this unit already loaded? */ |
1428 | if (info->type != _UNIT_FILE_TYPE_INVALID) | |
1429 | return 0; | |
1430 | ||
278fa575 | 1431 | if (info->path) |
c3e7fba0 | 1432 | return unit_file_load_or_readlink(c, info, info->path, lp, flags); |
83096483 LP |
1433 | |
1434 | assert(info->name); | |
1435 | ||
142468d8 JL |
1436 | if (unit_name_is_valid(info->name, UNIT_NAME_INSTANCE)) { |
1437 | r = unit_name_template(info->name, &template); | |
1438 | if (r < 0) | |
1439 | return r; | |
1440 | } | |
1441 | ||
c3e7fba0 | 1442 | STRV_FOREACH(p, lp->search_path) { |
e50bd775 | 1443 | _cleanup_free_ char *path = NULL; |
83096483 | 1444 | |
657ee2d8 | 1445 | path = path_join(*p, info->name); |
83096483 LP |
1446 | if (!path) |
1447 | return -ENOMEM; | |
1448 | ||
c3e7fba0 | 1449 | r = unit_file_load_or_readlink(c, info, path, lp, flags); |
0155928c | 1450 | if (r >= 0) { |
ae2a15bc | 1451 | info->path = TAKE_PTR(path); |
142468d8 JL |
1452 | result = r; |
1453 | found_unit = true; | |
1454 | break; | |
a1feacf7 | 1455 | } else if (!IN_SET(r, -ENOENT, -ENOTDIR, -EACCES)) |
0155928c | 1456 | return r; |
e50bd775 | 1457 | } |
62b00233 | 1458 | |
142468d8 JL |
1459 | if (!found_unit && template) { |
1460 | ||
e50bd775 LP |
1461 | /* Unit file doesn't exist, however instance |
1462 | * enablement was requested. We will check if it is | |
1463 | * possible to load template unit file. */ | |
29283ea4 | 1464 | |
c3e7fba0 | 1465 | STRV_FOREACH(p, lp->search_path) { |
e50bd775 LP |
1466 | _cleanup_free_ char *path = NULL; |
1467 | ||
657ee2d8 | 1468 | path = path_join(*p, template); |
62b00233 ZJS |
1469 | if (!path) |
1470 | return -ENOMEM; | |
29283ea4 | 1471 | |
c3e7fba0 | 1472 | r = unit_file_load_or_readlink(c, info, path, lp, flags); |
0155928c | 1473 | if (r >= 0) { |
ae2a15bc | 1474 | info->path = TAKE_PTR(path); |
142468d8 JL |
1475 | result = r; |
1476 | found_unit = true; | |
1477 | break; | |
a1feacf7 | 1478 | } else if (!IN_SET(r, -ENOENT, -ENOTDIR, -EACCES)) |
0155928c | 1479 | return r; |
29283ea4 | 1480 | } |
83096483 LP |
1481 | } |
1482 | ||
baaa35ad ZJS |
1483 | if (!found_unit) |
1484 | return log_debug_errno(SYNTHETIC_ERRNO(ENOENT), | |
1485 | "Cannot find unit %s%s%s.", | |
1486 | info->name, template ? " or " : "", strempty(template)); | |
142468d8 | 1487 | |
9639b175 FB |
1488 | if (info->type == UNIT_FILE_TYPE_MASKED) |
1489 | return result; | |
1490 | ||
142468d8 JL |
1491 | /* Search for drop-in directories */ |
1492 | ||
1493 | dropin_dir_name = strjoina(info->name, ".d"); | |
c3e7fba0 | 1494 | STRV_FOREACH(p, lp->search_path) { |
142468d8 JL |
1495 | char *path; |
1496 | ||
62a85ee0 | 1497 | path = path_join(*p, dropin_dir_name); |
142468d8 JL |
1498 | if (!path) |
1499 | return -ENOMEM; | |
1500 | ||
1501 | r = strv_consume(&dirs, path); | |
1502 | if (r < 0) | |
1503 | return r; | |
1504 | } | |
1505 | ||
1506 | if (template) { | |
1507 | dropin_template_dir_name = strjoina(template, ".d"); | |
c3e7fba0 | 1508 | STRV_FOREACH(p, lp->search_path) { |
142468d8 JL |
1509 | char *path; |
1510 | ||
62a85ee0 | 1511 | path = path_join(*p, dropin_template_dir_name); |
142468d8 JL |
1512 | if (!path) |
1513 | return -ENOMEM; | |
1514 | ||
1515 | r = strv_consume(&dirs, path); | |
1516 | if (r < 0) | |
1517 | return r; | |
1518 | } | |
1519 | } | |
1520 | ||
1521 | /* Load drop-in conf files */ | |
1522 | ||
1523 | r = conf_files_list_strv(&files, ".conf", NULL, 0, (const char**) dirs); | |
1524 | if (r < 0) | |
1525 | return log_debug_errno(r, "Failed to get list of conf files: %m"); | |
1526 | ||
1527 | STRV_FOREACH(p, files) { | |
c3e7fba0 | 1528 | r = unit_file_load_or_readlink(c, info, *p, lp, flags | SEARCH_DROPIN); |
142468d8 JL |
1529 | if (r < 0) |
1530 | return log_debug_errno(r, "Failed to load conf file %s: %m", *p); | |
1531 | } | |
1532 | ||
1533 | return result; | |
83096483 LP |
1534 | } |
1535 | ||
0ec0deaa LP |
1536 | static int install_info_follow( |
1537 | InstallContext *c, | |
1538 | UnitFileInstallInfo *i, | |
c3e7fba0 | 1539 | const LookupPaths *lp, |
9f6cbcf5 LP |
1540 | SearchFlags flags, |
1541 | bool ignore_different_name) { | |
0ec0deaa LP |
1542 | |
1543 | assert(c); | |
1544 | assert(i); | |
1545 | ||
1546 | if (i->type != UNIT_FILE_TYPE_SYMLINK) | |
1547 | return -EINVAL; | |
1548 | if (!i->symlink_target) | |
1549 | return -EINVAL; | |
1550 | ||
4f5c2485 | 1551 | /* If the basename doesn't match, the caller should add a complete new entry for this. */ |
0ec0deaa | 1552 | |
9f6cbcf5 | 1553 | if (!ignore_different_name && !streq(basename(i->symlink_target), i->name)) |
0ec0deaa LP |
1554 | return -EXDEV; |
1555 | ||
3b319885 | 1556 | free_and_replace(i->path, i->symlink_target); |
0ec0deaa LP |
1557 | i->type = _UNIT_FILE_TYPE_INVALID; |
1558 | ||
c3e7fba0 | 1559 | return unit_file_load_or_readlink(c, i, i->path, lp, flags); |
0ec0deaa LP |
1560 | } |
1561 | ||
64f9280e | 1562 | /** |
ff56349d ZJS |
1563 | * Search for the unit file. If the unit name is a symlink, follow the symlink to the |
1564 | * target, maybe more than once. Propagate the instance name if present. | |
64f9280e | 1565 | */ |
0ec0deaa LP |
1566 | static int install_info_traverse( |
1567 | UnitFileScope scope, | |
1568 | InstallContext *c, | |
c3e7fba0 | 1569 | const LookupPaths *lp, |
0ec0deaa LP |
1570 | UnitFileInstallInfo *start, |
1571 | SearchFlags flags, | |
1572 | UnitFileInstallInfo **ret) { | |
83096483 | 1573 | |
cab6235f | 1574 | UnitFileInstallInfo *i; |
0ec0deaa | 1575 | unsigned k = 0; |
83096483 LP |
1576 | int r; |
1577 | ||
c3e7fba0 | 1578 | assert(lp); |
0ec0deaa LP |
1579 | assert(start); |
1580 | assert(c); | |
83096483 | 1581 | |
c3e7fba0 | 1582 | r = unit_file_search(c, start, lp, flags); |
83096483 LP |
1583 | if (r < 0) |
1584 | return r; | |
1585 | ||
0ec0deaa LP |
1586 | i = start; |
1587 | while (i->type == UNIT_FILE_TYPE_SYMLINK) { | |
1588 | /* Follow the symlink */ | |
83096483 | 1589 | |
0ec0deaa LP |
1590 | if (++k > UNIT_FILE_FOLLOW_SYMLINK_MAX) |
1591 | return -ELOOP; | |
83096483 | 1592 | |
e1c5c2b0 | 1593 | if (!(flags & SEARCH_FOLLOW_CONFIG_SYMLINKS)) { |
c3e7fba0 | 1594 | r = path_is_config(lp, i->path, true); |
e1c5c2b0 LP |
1595 | if (r < 0) |
1596 | return r; | |
1597 | if (r > 0) | |
1598 | return -ELOOP; | |
1599 | } | |
83096483 | 1600 | |
c3e7fba0 | 1601 | r = install_info_follow(c, i, lp, flags, false); |
0155928c | 1602 | if (r == -EXDEV) { |
0ec0deaa LP |
1603 | _cleanup_free_ char *buffer = NULL; |
1604 | const char *bn; | |
83096483 | 1605 | |
4f5c2485 | 1606 | /* Target is an alias, create a new install info object and continue with that. */ |
83096483 | 1607 | |
0ec0deaa | 1608 | bn = basename(i->symlink_target); |
83096483 | 1609 | |
0ec0deaa LP |
1610 | if (unit_name_is_valid(i->name, UNIT_NAME_INSTANCE) && |
1611 | unit_name_is_valid(bn, UNIT_NAME_TEMPLATE)) { | |
83096483 | 1612 | |
0ec0deaa LP |
1613 | _cleanup_free_ char *instance = NULL; |
1614 | ||
1615 | r = unit_name_to_instance(i->name, &instance); | |
1616 | if (r < 0) | |
1617 | return r; | |
1618 | ||
1619 | r = unit_name_replace_instance(bn, instance, &buffer); | |
1620 | if (r < 0) | |
1621 | return r; | |
1622 | ||
9f6cbcf5 LP |
1623 | if (streq(buffer, i->name)) { |
1624 | ||
4f5c2485 ZJS |
1625 | /* We filled in the instance, and the target stayed the same? If so, |
1626 | * then let's honour the link as it is. */ | |
9f6cbcf5 | 1627 | |
c3e7fba0 | 1628 | r = install_info_follow(c, i, lp, flags, true); |
9f6cbcf5 LP |
1629 | if (r < 0) |
1630 | return r; | |
1631 | ||
1632 | continue; | |
1633 | } | |
1634 | ||
0ec0deaa LP |
1635 | bn = buffer; |
1636 | } | |
1637 | ||
c3e7fba0 | 1638 | r = install_info_add(c, bn, NULL, lp->root_dir, /* auxiliary= */ false, &i); |
0ec0deaa LP |
1639 | if (r < 0) |
1640 | return r; | |
1641 | ||
0155928c | 1642 | /* Try again, with the new target we found. */ |
c3e7fba0 | 1643 | r = unit_file_search(c, i, lp, flags); |
893275df ZJS |
1644 | if (r == -ENOENT) |
1645 | /* Translate error code to highlight this specific case */ | |
1646 | return -ENOLINK; | |
0ec0deaa LP |
1647 | } |
1648 | ||
0155928c ZJS |
1649 | if (r < 0) |
1650 | return r; | |
83096483 LP |
1651 | } |
1652 | ||
0ec0deaa LP |
1653 | if (ret) |
1654 | *ret = i; | |
83096483 | 1655 | |
0ec0deaa LP |
1656 | return 0; |
1657 | } | |
83096483 | 1658 | |
ff56349d ZJS |
1659 | /** |
1660 | * Call install_info_add() with name_or_path as the path (if name_or_path starts with "/") | |
1661 | * or the name (otherwise). root_dir is prepended to the path. | |
1662 | */ | |
401017e0 LP |
1663 | static int install_info_add_auto( |
1664 | InstallContext *c, | |
c3e7fba0 | 1665 | const LookupPaths *lp, |
401017e0 LP |
1666 | const char *name_or_path, |
1667 | UnitFileInstallInfo **ret) { | |
1668 | ||
1669 | assert(c); | |
1670 | assert(name_or_path); | |
1671 | ||
1672 | if (path_is_absolute(name_or_path)) { | |
1673 | const char *pp; | |
1674 | ||
c3e7fba0 | 1675 | pp = prefix_roota(lp->root_dir, name_or_path); |
401017e0 | 1676 | |
c3e7fba0 | 1677 | return install_info_add(c, NULL, pp, lp->root_dir, /* auxiliary= */ false, ret); |
401017e0 | 1678 | } else |
c3e7fba0 | 1679 | return install_info_add(c, name_or_path, NULL, lp->root_dir, /* auxiliary= */ false, ret); |
401017e0 LP |
1680 | } |
1681 | ||
0ec0deaa LP |
1682 | static int install_info_discover( |
1683 | UnitFileScope scope, | |
1684 | InstallContext *c, | |
c3e7fba0 | 1685 | const LookupPaths *lp, |
0ec0deaa LP |
1686 | const char *name, |
1687 | SearchFlags flags, | |
59108fbe ZJS |
1688 | UnitFileInstallInfo **ret, |
1689 | UnitFileChange **changes, | |
da6053d0 | 1690 | size_t *n_changes) { |
83096483 | 1691 | |
0ec0deaa LP |
1692 | UnitFileInstallInfo *i; |
1693 | int r; | |
83096483 | 1694 | |
0ec0deaa | 1695 | assert(c); |
c3e7fba0 | 1696 | assert(lp); |
0ec0deaa LP |
1697 | assert(name); |
1698 | ||
c3e7fba0 | 1699 | r = install_info_add_auto(c, lp, name, &i); |
59108fbe | 1700 | if (r >= 0) |
c3e7fba0 | 1701 | r = install_info_traverse(scope, c, lp, i, flags, ret); |
83096483 | 1702 | |
59108fbe ZJS |
1703 | if (r < 0) |
1704 | unit_file_changes_add(changes, n_changes, r, name, NULL); | |
1705 | return r; | |
83096483 LP |
1706 | } |
1707 | ||
1e475a0a RB |
1708 | static int install_info_discover_and_check( |
1709 | UnitFileScope scope, | |
1710 | InstallContext *c, | |
c3e7fba0 | 1711 | const LookupPaths *lp, |
1e475a0a RB |
1712 | const char *name, |
1713 | SearchFlags flags, | |
1714 | UnitFileInstallInfo **ret, | |
1715 | UnitFileChange **changes, | |
1716 | size_t *n_changes) { | |
1717 | ||
1718 | int r; | |
1719 | ||
c3e7fba0 | 1720 | r = install_info_discover(scope, c, lp, name, flags, ret, changes, n_changes); |
1e475a0a RB |
1721 | if (r < 0) |
1722 | return r; | |
1723 | ||
c3e7fba0 | 1724 | return install_info_may_process(ret ? *ret : NULL, lp, changes, n_changes); |
1e475a0a RB |
1725 | } |
1726 | ||
3f57bc22 ZJS |
1727 | int unit_file_verify_alias(const UnitFileInstallInfo *i, const char *dst, char **ret_dst) { |
1728 | _cleanup_free_ char *dst_updated = NULL; | |
aa0f357f ZJS |
1729 | int r; |
1730 | ||
3f57bc22 ZJS |
1731 | /* Verify that dst is a valid either a valid alias or a valid .wants/.requires symlink for the target |
1732 | * unit *i. Return negative on error or if not compatible, zero on success. | |
1733 | * | |
1734 | * ret_dst is set in cases where "instance propagation" happens, i.e. when the instance part is | |
1735 | * inserted into dst. It is not normally set, even on success, so that the caller can easily | |
162392b7 | 1736 | * distinguish the case where instance propagation occurred. |
3f57bc22 ZJS |
1737 | */ |
1738 | ||
1739 | const char *path_alias = strrchr(dst, '/'); | |
1740 | if (path_alias) { | |
1741 | /* This branch covers legacy Alias= function of creating .wants and .requires symlinks. */ | |
1742 | _cleanup_free_ char *dir = NULL; | |
1bf15585 | 1743 | char *p; |
aa0f357f | 1744 | |
3f57bc22 | 1745 | path_alias ++; /* skip over slash */ |
aa0f357f | 1746 | |
3f57bc22 ZJS |
1747 | dir = dirname_malloc(dst); |
1748 | if (!dir) | |
1749 | return log_oom(); | |
aa0f357f | 1750 | |
1bf15585 ZJS |
1751 | p = endswith(dir, ".wants"); |
1752 | if (!p) | |
1753 | p = endswith(dir, ".requires"); | |
1754 | if (!p) | |
3f57bc22 ZJS |
1755 | return log_warning_errno(SYNTHETIC_ERRNO(EXDEV), |
1756 | "Invalid path \"%s\" in alias.", dir); | |
1bf15585 ZJS |
1757 | *p = '\0'; /* dir should now be a unit name */ |
1758 | ||
73ce91a0 ZJS |
1759 | UnitNameFlags type = unit_name_classify(dir); |
1760 | if (type < 0) | |
1bf15585 ZJS |
1761 | return log_warning_errno(SYNTHETIC_ERRNO(EXDEV), |
1762 | "Invalid unit name component \"%s\" in alias.", dir); | |
1763 | ||
73ce91a0 | 1764 | const bool instance_propagation = type == UNIT_NAME_TEMPLATE; |
3f57bc22 ZJS |
1765 | |
1766 | /* That's the name we want to use for verification. */ | |
1bf15585 | 1767 | r = unit_symlink_name_compatible(path_alias, i->name, instance_propagation); |
aa0f357f | 1768 | if (r < 0) |
3f57bc22 ZJS |
1769 | return log_error_errno(r, "Failed to verify alias validity: %m"); |
1770 | if (r == 0) | |
1771 | return log_warning_errno(SYNTHETIC_ERRNO(EXDEV), | |
1772 | "Invalid unit %s symlink %s.", | |
1773 | i->name, dst); | |
1774 | ||
1775 | } else { | |
1776 | /* If the symlink target has an instance set and the symlink source doesn't, we "propagate | |
1777 | * the instance", i.e. instantiate the symlink source with the target instance. */ | |
1778 | if (unit_name_is_valid(dst, UNIT_NAME_TEMPLATE)) { | |
1779 | _cleanup_free_ char *inst = NULL; | |
1780 | ||
73ce91a0 ZJS |
1781 | UnitNameFlags type = unit_name_to_instance(i->name, &inst); |
1782 | if (type < 0) | |
1783 | return log_error_errno(type, "Failed to extract instance name from %s: %m", i->name); | |
3f57bc22 | 1784 | |
73ce91a0 | 1785 | if (type == UNIT_NAME_INSTANCE) { |
3f57bc22 ZJS |
1786 | r = unit_name_replace_instance(dst, inst, &dst_updated); |
1787 | if (r < 0) | |
1788 | return log_error_errno(r, "Failed to build unit name from %s+%s: %m", | |
1789 | dst, inst); | |
1790 | } | |
1791 | } | |
aa0f357f | 1792 | |
3f57bc22 | 1793 | r = unit_validate_alias_symlink_and_warn(dst_updated ?: dst, i->name); |
aa0f357f ZJS |
1794 | if (r < 0) |
1795 | return r; | |
3f57bc22 | 1796 | |
aa0f357f ZJS |
1797 | } |
1798 | ||
3f57bc22 | 1799 | *ret_dst = TAKE_PTR(dst_updated); |
aa0f357f ZJS |
1800 | return 0; |
1801 | } | |
1802 | ||
83096483 | 1803 | static int install_info_symlink_alias( |
cab6235f | 1804 | UnitFileInstallInfo *i, |
c3e7fba0 | 1805 | const LookupPaths *lp, |
83096483 LP |
1806 | const char *config_path, |
1807 | bool force, | |
1808 | UnitFileChange **changes, | |
da6053d0 | 1809 | size_t *n_changes) { |
83096483 | 1810 | |
83096483 LP |
1811 | int r = 0, q; |
1812 | ||
1813 | assert(i); | |
c3e7fba0 | 1814 | assert(lp); |
83096483 LP |
1815 | assert(config_path); |
1816 | ||
1817 | STRV_FOREACH(s, i->aliases) { | |
3f57bc22 | 1818 | _cleanup_free_ char *alias_path = NULL, *dst = NULL, *dst_updated = NULL; |
83096483 | 1819 | |
46801e76 | 1820 | q = install_name_printf(i, *s, i->root, &dst); |
19f6d710 LP |
1821 | if (q < 0) |
1822 | return q; | |
83096483 | 1823 | |
3f57bc22 | 1824 | q = unit_file_verify_alias(i, dst, &dst_updated); |
aa0f357f ZJS |
1825 | if (q < 0) |
1826 | continue; | |
3d0205f2 | 1827 | |
3f57bc22 | 1828 | alias_path = path_make_absolute(dst_updated ?: dst, config_path); |
83096483 LP |
1829 | if (!alias_path) |
1830 | return -ENOMEM; | |
1831 | ||
c3e7fba0 | 1832 | q = create_symlink(lp, i->path, alias_path, force, changes, n_changes); |
83096483 LP |
1833 | if (r == 0) |
1834 | r = q; | |
1835 | } | |
1836 | ||
1837 | return r; | |
1838 | } | |
1839 | ||
1840 | static int install_info_symlink_wants( | |
8ae27441 | 1841 | UnitFileScope scope, |
9b69770a | 1842 | UnitFileFlags file_flags, |
cab6235f | 1843 | UnitFileInstallInfo *i, |
c3e7fba0 | 1844 | const LookupPaths *lp, |
83096483 | 1845 | const char *config_path, |
d54c4993 LP |
1846 | char **list, |
1847 | const char *suffix, | |
83096483 | 1848 | UnitFileChange **changes, |
da6053d0 | 1849 | size_t *n_changes) { |
83096483 | 1850 | |
d54c4993 | 1851 | _cleanup_free_ char *buf = NULL; |
b0ec372a | 1852 | UnitNameFlags valid_dst_type = UNIT_NAME_ANY; |
d54c4993 | 1853 | const char *n; |
83096483 LP |
1854 | int r = 0, q; |
1855 | ||
1856 | assert(i); | |
c3e7fba0 | 1857 | assert(lp); |
83096483 LP |
1858 | assert(config_path); |
1859 | ||
047d91f9 ZJS |
1860 | if (strv_isempty(list)) |
1861 | return 0; | |
1862 | ||
b0ec372a ZJS |
1863 | if (unit_name_is_valid(i->name, UNIT_NAME_PLAIN | UNIT_NAME_INSTANCE)) |
1864 | /* Not a template unit. Use the name directly. */ | |
1865 | n = i->name; | |
1866 | ||
1867 | else if (i->default_instance) { | |
047d91f9 ZJS |
1868 | UnitFileInstallInfo instance = { |
1869 | .type = _UNIT_FILE_TYPE_INVALID, | |
1870 | }; | |
1871 | _cleanup_free_ char *path = NULL; | |
0a327d75 | 1872 | |
b0ec372a | 1873 | /* If this is a template, and we have a default instance, use it. */ |
e4086ae0 | 1874 | |
7410616c LP |
1875 | r = unit_name_replace_instance(i->name, i->default_instance, &buf); |
1876 | if (r < 0) | |
1877 | return r; | |
83096483 | 1878 | |
047d91f9 | 1879 | instance.name = buf; |
c3e7fba0 | 1880 | r = unit_file_search(NULL, &instance, lp, SEARCH_FOLLOW_CONFIG_SYMLINKS); |
047d91f9 ZJS |
1881 | if (r < 0) |
1882 | return r; | |
1883 | ||
ae2a15bc | 1884 | path = TAKE_PTR(instance.path); |
047d91f9 ZJS |
1885 | |
1886 | if (instance.type == UNIT_FILE_TYPE_MASKED) { | |
1887 | unit_file_changes_add(changes, n_changes, -ERFKILL, path, NULL); | |
1888 | return -ERFKILL; | |
1889 | } | |
1890 | ||
d54c4993 | 1891 | n = buf; |
b0ec372a ZJS |
1892 | |
1893 | } else { | |
1894 | /* We have a template, but no instance yet. When used with an instantiated unit, we will get | |
1895 | * the instance from that unit. Cannot be used with non-instance units. */ | |
1896 | ||
1897 | valid_dst_type = UNIT_NAME_INSTANCE | UNIT_NAME_TEMPLATE; | |
d54c4993 | 1898 | n = i->name; |
b0ec372a | 1899 | } |
78d54bd4 | 1900 | |
d54c4993 | 1901 | STRV_FOREACH(s, list) { |
7fd1b19b | 1902 | _cleanup_free_ char *path = NULL, *dst = NULL; |
78d54bd4 | 1903 | |
de61a04b | 1904 | q = install_name_printf(i, *s, i->root, &dst); |
19f6d710 LP |
1905 | if (q < 0) |
1906 | return q; | |
7584d236 | 1907 | |
b0ec372a | 1908 | if (!unit_name_is_valid(dst, valid_dst_type)) { |
ad5fdd39 ZJS |
1909 | /* Generate a proper error here: EUCLEAN if the name is generally bad, EIDRM if the |
1910 | * template status doesn't match. If we are doing presets don't bother reporting the | |
1911 | * error. This also covers cases like 'systemctl preset serial-getty@.service', which | |
1912 | * has no DefaultInstance, so there is nothing we can do. At the same time, | |
1913 | * 'systemctl enable serial-getty@.service' should fail, the user should specify an | |
1914 | * instance like in 'systemctl enable serial-getty@ttyS0.service'. | |
1915 | */ | |
1916 | if (file_flags & UNIT_FILE_IGNORE_AUXILIARY_FAILURE) | |
1917 | continue; | |
1918 | ||
b0ec372a ZJS |
1919 | if (unit_name_is_valid(dst, UNIT_NAME_ANY)) { |
1920 | unit_file_changes_add(changes, n_changes, -EIDRM, dst, n); | |
1921 | r = -EIDRM; | |
1922 | } else { | |
1923 | unit_file_changes_add(changes, n_changes, -EUCLEAN, dst, NULL); | |
1924 | r = -EUCLEAN; | |
1925 | } | |
1926 | ||
78d54bd4 LP |
1927 | continue; |
1928 | } | |
1929 | ||
605405c6 | 1930 | path = strjoin(config_path, "/", dst, suffix, n); |
d54c4993 | 1931 | if (!path) |
78d54bd4 LP |
1932 | return -ENOMEM; |
1933 | ||
c3e7fba0 | 1934 | q = create_symlink(lp, i->path, path, true, changes, n_changes); |
78d54bd4 LP |
1935 | if (r == 0) |
1936 | r = q; | |
8ae27441 | 1937 | |
c3e7fba0 | 1938 | if (unit_file_exists(scope, lp, dst) == 0) |
8ae27441 | 1939 | unit_file_changes_add(changes, n_changes, UNIT_FILE_DESTINATION_NOT_PRESENT, dst, i->path); |
78d54bd4 LP |
1940 | } |
1941 | ||
1942 | return r; | |
1943 | } | |
1944 | ||
83096483 | 1945 | static int install_info_symlink_link( |
cab6235f | 1946 | UnitFileInstallInfo *i, |
c3e7fba0 | 1947 | const LookupPaths *lp, |
83096483 LP |
1948 | const char *config_path, |
1949 | bool force, | |
1950 | UnitFileChange **changes, | |
da6053d0 | 1951 | size_t *n_changes) { |
83096483 | 1952 | |
7fd1b19b | 1953 | _cleanup_free_ char *path = NULL; |
1dacfd2a | 1954 | int r; |
83096483 LP |
1955 | |
1956 | assert(i); | |
c3e7fba0 | 1957 | assert(lp); |
83096483 LP |
1958 | assert(config_path); |
1959 | assert(i->path); | |
1960 | ||
c3e7fba0 | 1961 | r = in_search_path(lp, i->path); |
fe4aede9 | 1962 | if (r < 0) |
83096483 | 1963 | return r; |
fe4aede9 ZJS |
1964 | if (r > 0) |
1965 | return 0; | |
83096483 | 1966 | |
657ee2d8 | 1967 | path = path_join(config_path, i->name); |
1dacfd2a | 1968 | if (!path) |
83096483 LP |
1969 | return -ENOMEM; |
1970 | ||
c3e7fba0 | 1971 | return create_symlink(lp, i->path, path, force, changes, n_changes); |
83096483 LP |
1972 | } |
1973 | ||
1974 | static int install_info_apply( | |
8ae27441 | 1975 | UnitFileScope scope, |
9b69770a | 1976 | UnitFileFlags file_flags, |
cab6235f | 1977 | UnitFileInstallInfo *i, |
c3e7fba0 | 1978 | const LookupPaths *lp, |
83096483 | 1979 | const char *config_path, |
83096483 | 1980 | UnitFileChange **changes, |
da6053d0 | 1981 | size_t *n_changes) { |
83096483 LP |
1982 | |
1983 | int r, q; | |
1984 | ||
1985 | assert(i); | |
c3e7fba0 | 1986 | assert(lp); |
83096483 LP |
1987 | assert(config_path); |
1988 | ||
0ec0deaa LP |
1989 | if (i->type != UNIT_FILE_TYPE_REGULAR) |
1990 | return 0; | |
1991 | ||
9b69770a ZJS |
1992 | bool force = file_flags & UNIT_FILE_FORCE; |
1993 | ||
c3e7fba0 | 1994 | r = install_info_symlink_alias(i, lp, config_path, force, changes, n_changes); |
83096483 | 1995 | |
c3e7fba0 | 1996 | q = install_info_symlink_wants(scope, file_flags, i, lp, config_path, i->wanted_by, ".wants/", changes, n_changes); |
83096483 LP |
1997 | if (r == 0) |
1998 | r = q; | |
1999 | ||
c3e7fba0 | 2000 | q = install_info_symlink_wants(scope, file_flags, i, lp, config_path, i->required_by, ".requires/", changes, n_changes); |
78d54bd4 LP |
2001 | if (r == 0) |
2002 | r = q; | |
2003 | ||
c3e7fba0 | 2004 | q = install_info_symlink_link(i, lp, config_path, force, changes, n_changes); |
fe4aede9 ZJS |
2005 | /* Do not count links to the unit file towards the "carries_install_info" count */ |
2006 | if (r == 0 && q < 0) | |
83096483 LP |
2007 | r = q; |
2008 | ||
2009 | return r; | |
2010 | } | |
2011 | ||
2012 | static int install_context_apply( | |
0ec0deaa | 2013 | UnitFileScope scope, |
9b69770a | 2014 | UnitFileFlags file_flags, |
83096483 | 2015 | InstallContext *c, |
c3e7fba0 | 2016 | const LookupPaths *lp, |
83096483 | 2017 | const char *config_path, |
0ec0deaa | 2018 | SearchFlags flags, |
83096483 | 2019 | UnitFileChange **changes, |
da6053d0 | 2020 | size_t *n_changes) { |
83096483 | 2021 | |
cab6235f | 2022 | UnitFileInstallInfo *i; |
0ec0deaa | 2023 | int r; |
83096483 LP |
2024 | |
2025 | assert(c); | |
c3e7fba0 | 2026 | assert(lp); |
83096483 LP |
2027 | assert(config_path); |
2028 | ||
0ec0deaa | 2029 | if (ordered_hashmap_isempty(c->will_process)) |
d25e100b | 2030 | return 0; |
83096483 | 2031 | |
0ec0deaa | 2032 | r = ordered_hashmap_ensure_allocated(&c->have_processed, &string_hash_ops); |
d25e100b LP |
2033 | if (r < 0) |
2034 | return r; | |
83096483 | 2035 | |
2d5c93c7 | 2036 | r = 0; |
0ec0deaa LP |
2037 | while ((i = ordered_hashmap_first(c->will_process))) { |
2038 | int q; | |
83096483 | 2039 | |
0ec0deaa LP |
2040 | q = ordered_hashmap_move_one(c->have_processed, c->will_process, i->name); |
2041 | if (q < 0) | |
2042 | return q; | |
83096483 | 2043 | |
c3e7fba0 | 2044 | q = install_info_traverse(scope, c, lp, i, flags, NULL); |
459500a3 | 2045 | if (q < 0) { |
3aa96361 ZJS |
2046 | if (i->auxiliary) { |
2047 | q = unit_file_changes_add(changes, n_changes, UNIT_FILE_AUXILIARY_FAILED, NULL, i->name); | |
2048 | if (q < 0) | |
2049 | return q; | |
2050 | continue; | |
2051 | } | |
2052 | ||
56a4ce24 | 2053 | unit_file_changes_add(changes, n_changes, q, i->name, NULL); |
459500a3 | 2054 | return q; |
db093eed | 2055 | } |
0ec0deaa | 2056 | |
f1651715 | 2057 | /* We can attempt to process a masked unit when a different unit |
047d91f9 | 2058 | * that we were processing specifies it in Also=. */ |
f1651715 ZJS |
2059 | if (i->type == UNIT_FILE_TYPE_MASKED) { |
2060 | unit_file_changes_add(changes, n_changes, UNIT_FILE_IS_MASKED, i->path, NULL); | |
2061 | if (r >= 0) | |
047d91f9 ZJS |
2062 | /* Assume that something *could* have been enabled here, |
2063 | * avoid "empty [Install] section" warning. */ | |
f1651715 ZJS |
2064 | r += 1; |
2065 | continue; | |
2066 | } | |
2067 | ||
0ec0deaa LP |
2068 | if (i->type != UNIT_FILE_TYPE_REGULAR) |
2069 | continue; | |
83096483 | 2070 | |
c3e7fba0 | 2071 | q = install_info_apply(scope, file_flags, i, lp, config_path, changes, n_changes); |
0ec0deaa LP |
2072 | if (r >= 0) { |
2073 | if (q < 0) | |
2074 | r = q; | |
2075 | else | |
596fc263 | 2076 | r += q; |
0ec0deaa | 2077 | } |
83096483 LP |
2078 | } |
2079 | ||
2080 | return r; | |
2081 | } | |
2082 | ||
2083 | static int install_context_mark_for_removal( | |
0ec0deaa | 2084 | UnitFileScope scope, |
83096483 | 2085 | InstallContext *c, |
c3e7fba0 | 2086 | const LookupPaths *lp, |
83096483 | 2087 | Set **remove_symlinks_to, |
1830ac51 | 2088 | const char *config_path, |
637d6e5b | 2089 | UnitFileChange **changes, |
da6053d0 | 2090 | size_t *n_changes) { |
83096483 | 2091 | |
cab6235f | 2092 | UnitFileInstallInfo *i; |
0ec0deaa | 2093 | int r; |
83096483 LP |
2094 | |
2095 | assert(c); | |
c3e7fba0 | 2096 | assert(lp); |
1830ac51 | 2097 | assert(config_path); |
83096483 LP |
2098 | |
2099 | /* Marks all items for removal */ | |
2100 | ||
0ec0deaa | 2101 | if (ordered_hashmap_isempty(c->will_process)) |
d25e100b | 2102 | return 0; |
83096483 | 2103 | |
0ec0deaa | 2104 | r = ordered_hashmap_ensure_allocated(&c->have_processed, &string_hash_ops); |
d25e100b LP |
2105 | if (r < 0) |
2106 | return r; | |
83096483 | 2107 | |
0ec0deaa | 2108 | while ((i = ordered_hashmap_first(c->will_process))) { |
83096483 | 2109 | |
0ec0deaa LP |
2110 | r = ordered_hashmap_move_one(c->have_processed, c->will_process, i->name); |
2111 | if (r < 0) | |
83096483 | 2112 | return r; |
29283ea4 | 2113 | |
c3e7fba0 | 2114 | r = install_info_traverse(scope, c, lp, i, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS, NULL); |
19539807 | 2115 | if (r == -ENOLINK) { |
637d6e5b LP |
2116 | log_debug_errno(r, "Name %s leads to a dangling symlink, removing name.", i->name); |
2117 | unit_file_changes_add(changes, n_changes, UNIT_FILE_IS_DANGLING, i->path ?: i->name, NULL); | |
2118 | } else if (r == -ENOENT) { | |
2119 | ||
2120 | if (i->auxiliary) /* some unit specified in Also= or similar is missing */ | |
2121 | log_debug_errno(r, "Auxiliary unit of %s not found, removing name.", i->name); | |
2122 | else { | |
2123 | log_debug_errno(r, "Unit %s not found, removing name.", i->name); | |
2124 | unit_file_changes_add(changes, n_changes, r, i->path ?: i->name, NULL); | |
2125 | } | |
0ec0deaa | 2126 | |
637d6e5b LP |
2127 | } else if (r < 0) { |
2128 | log_debug_errno(r, "Failed to find unit %s, removing name: %m", i->name); | |
2129 | unit_file_changes_add(changes, n_changes, r, i->path ?: i->name, NULL); | |
2130 | } else if (i->type == UNIT_FILE_TYPE_MASKED) { | |
2131 | log_debug("Unit file %s is masked, ignoring.", i->name); | |
2132 | unit_file_changes_add(changes, n_changes, UNIT_FILE_IS_MASKED, i->path ?: i->name, NULL); | |
2133 | continue; | |
2134 | } else if (i->type != UNIT_FILE_TYPE_REGULAR) { | |
2135 | log_debug("Unit %s has type %s, ignoring.", i->name, unit_file_type_to_string(i->type) ?: "invalid"); | |
0ec0deaa | 2136 | continue; |
64f9280e | 2137 | } |
0ec0deaa LP |
2138 | |
2139 | r = mark_symlink_for_removal(remove_symlinks_to, i->name); | |
2140 | if (r < 0) | |
2141 | return r; | |
2142 | } | |
2143 | ||
2144 | return 0; | |
2145 | } | |
2146 | ||
2147 | int unit_file_mask( | |
2148 | UnitFileScope scope, | |
b3796dd8 | 2149 | UnitFileFlags flags, |
0ec0deaa LP |
2150 | const char *root_dir, |
2151 | char **files, | |
0ec0deaa | 2152 | UnitFileChange **changes, |
da6053d0 | 2153 | size_t *n_changes) { |
0ec0deaa | 2154 | |
c3e7fba0 | 2155 | _cleanup_(lookup_paths_free) LookupPaths lp = {}; |
e1c5c2b0 | 2156 | const char *config_path; |
0ec0deaa LP |
2157 | int r; |
2158 | ||
2159 | assert(scope >= 0); | |
2160 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
2161 | ||
c3e7fba0 | 2162 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
0ec0deaa LP |
2163 | if (r < 0) |
2164 | return r; | |
2165 | ||
c3e7fba0 | 2166 | config_path = (flags & UNIT_FILE_RUNTIME) ? lp.runtime_config : lp.persistent_config; |
d0fd66a3 LP |
2167 | if (!config_path) |
2168 | return -ENXIO; | |
e1c5c2b0 | 2169 | |
0ec0deaa LP |
2170 | STRV_FOREACH(i, files) { |
2171 | _cleanup_free_ char *path = NULL; | |
2172 | int q; | |
2173 | ||
2174 | if (!unit_name_is_valid(*i, UNIT_NAME_ANY)) { | |
2175 | if (r == 0) | |
2176 | r = -EINVAL; | |
2177 | continue; | |
2178 | } | |
2179 | ||
e1c5c2b0 | 2180 | path = path_make_absolute(*i, config_path); |
0ec0deaa LP |
2181 | if (!path) |
2182 | return -ENOMEM; | |
29283ea4 | 2183 | |
d3e85c9c | 2184 | q = create_symlink(&lp, "/dev/null", path, flags & UNIT_FILE_FORCE, changes, n_changes); |
0ec0deaa | 2185 | if (q < 0 && r >= 0) |
83096483 LP |
2186 | r = q; |
2187 | } | |
2188 | ||
2189 | return r; | |
2190 | } | |
2191 | ||
0ec0deaa LP |
2192 | int unit_file_unmask( |
2193 | UnitFileScope scope, | |
b3796dd8 | 2194 | UnitFileFlags flags, |
0ec0deaa LP |
2195 | const char *root_dir, |
2196 | char **files, | |
2197 | UnitFileChange **changes, | |
da6053d0 | 2198 | size_t *n_changes) { |
0ec0deaa | 2199 | |
c3e7fba0 | 2200 | _cleanup_(lookup_paths_free) LookupPaths lp = {}; |
0ec0deaa | 2201 | _cleanup_set_free_free_ Set *remove_symlinks_to = NULL; |
dc7dd61d | 2202 | _cleanup_strv_free_ char **todo = NULL; |
e1c5c2b0 | 2203 | const char *config_path; |
319a4f4b | 2204 | size_t n_todo = 0; |
0ec0deaa LP |
2205 | int r, q; |
2206 | ||
2207 | assert(scope >= 0); | |
2208 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
2209 | ||
c3e7fba0 | 2210 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
0ec0deaa LP |
2211 | if (r < 0) |
2212 | return r; | |
2213 | ||
c3e7fba0 | 2214 | config_path = (flags & UNIT_FILE_RUNTIME) ? lp.runtime_config : lp.persistent_config; |
1830ac51 MB |
2215 | if (!config_path) |
2216 | return -ENXIO; | |
2217 | ||
d3e85c9c | 2218 | bool dry_run = flags & UNIT_FILE_DRY_RUN; |
1830ac51 | 2219 | |
0ec0deaa | 2220 | STRV_FOREACH(i, files) { |
1830ac51 MB |
2221 | _cleanup_free_ char *path = NULL; |
2222 | ||
0ec0deaa LP |
2223 | if (!unit_name_is_valid(*i, UNIT_NAME_ANY)) |
2224 | return -EINVAL; | |
2225 | ||
1830ac51 MB |
2226 | path = path_make_absolute(*i, config_path); |
2227 | if (!path) | |
2228 | return -ENOMEM; | |
0ec0deaa | 2229 | |
1830ac51 MB |
2230 | r = null_or_empty_path(path); |
2231 | if (r == -ENOENT) | |
2232 | continue; | |
2233 | if (r < 0) | |
2234 | return r; | |
2235 | if (r == 0) | |
2236 | continue; | |
0ec0deaa | 2237 | |
319a4f4b | 2238 | if (!GREEDY_REALLOC0(todo, n_todo + 2)) |
1830ac51 | 2239 | return -ENOMEM; |
d054eae6 | 2240 | |
1830ac51 MB |
2241 | todo[n_todo] = strdup(*i); |
2242 | if (!todo[n_todo]) | |
2243 | return -ENOMEM; | |
4910b350 | 2244 | |
1830ac51 | 2245 | n_todo++; |
0ec0deaa LP |
2246 | } |
2247 | ||
2248 | strv_uniq(todo); | |
2249 | ||
2250 | r = 0; | |
1830ac51 MB |
2251 | STRV_FOREACH(i, todo) { |
2252 | _cleanup_free_ char *path = NULL; | |
2253 | const char *rp; | |
0ec0deaa | 2254 | |
1830ac51 MB |
2255 | path = path_make_absolute(*i, config_path); |
2256 | if (!path) | |
2257 | return -ENOMEM; | |
4910b350 | 2258 | |
1830ac51 MB |
2259 | if (!dry_run && unlink(path) < 0) { |
2260 | if (errno != ENOENT) { | |
2261 | if (r >= 0) | |
2262 | r = -errno; | |
2263 | unit_file_changes_add(changes, n_changes, -errno, path, NULL); | |
af3d8113 | 2264 | } |
0ec0deaa | 2265 | |
1830ac51 | 2266 | continue; |
4910b350 | 2267 | } |
401017e0 | 2268 | |
1830ac51 MB |
2269 | unit_file_changes_add(changes, n_changes, UNIT_FILE_UNLINK, path, NULL); |
2270 | ||
c3e7fba0 | 2271 | rp = skip_root(lp.root_dir, path); |
1830ac51 MB |
2272 | q = mark_symlink_for_removal(&remove_symlinks_to, rp ?: path); |
2273 | if (q < 0) | |
2274 | return q; | |
0ec0deaa LP |
2275 | } |
2276 | ||
c3e7fba0 | 2277 | q = remove_marked_symlinks(remove_symlinks_to, config_path, &lp, dry_run, changes, n_changes); |
1830ac51 MB |
2278 | if (r >= 0) |
2279 | r = q; | |
2280 | ||
0ec0deaa LP |
2281 | return r; |
2282 | } | |
2283 | ||
2284 | int unit_file_link( | |
e94937df | 2285 | UnitFileScope scope, |
b3796dd8 | 2286 | UnitFileFlags flags, |
e94937df LN |
2287 | const char *root_dir, |
2288 | char **files, | |
e94937df | 2289 | UnitFileChange **changes, |
da6053d0 | 2290 | size_t *n_changes) { |
e94937df | 2291 | |
c3e7fba0 | 2292 | _cleanup_(lookup_paths_free) LookupPaths lp = {}; |
8af35ba6 | 2293 | _cleanup_strv_free_ char **todo = NULL; |
e1c5c2b0 | 2294 | const char *config_path; |
319a4f4b | 2295 | size_t n_todo = 0; |
0ec0deaa | 2296 | int r, q; |
e94937df LN |
2297 | |
2298 | assert(scope >= 0); | |
2299 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
2300 | ||
c3e7fba0 | 2301 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
e94937df LN |
2302 | if (r < 0) |
2303 | return r; | |
2304 | ||
c3e7fba0 | 2305 | config_path = (flags & UNIT_FILE_RUNTIME) ? lp.runtime_config : lp.persistent_config; |
d0fd66a3 LP |
2306 | if (!config_path) |
2307 | return -ENXIO; | |
e94937df LN |
2308 | |
2309 | STRV_FOREACH(i, files) { | |
0ec0deaa LP |
2310 | _cleanup_free_ char *full = NULL; |
2311 | struct stat st; | |
2312 | char *fn; | |
e94937df | 2313 | |
0ec0deaa LP |
2314 | if (!path_is_absolute(*i)) |
2315 | return -EINVAL; | |
e94937df | 2316 | |
0ec0deaa LP |
2317 | fn = basename(*i); |
2318 | if (!unit_name_is_valid(fn, UNIT_NAME_ANY)) | |
2319 | return -EINVAL; | |
2320 | ||
c3e7fba0 | 2321 | full = path_join(lp.root_dir, *i); |
0ec0deaa LP |
2322 | if (!full) |
2323 | return -ENOMEM; | |
2324 | ||
2325 | if (lstat(full, &st) < 0) | |
2326 | return -errno; | |
3cc44114 LP |
2327 | r = stat_verify_regular(&st); |
2328 | if (r < 0) | |
2329 | return r; | |
0ec0deaa | 2330 | |
c3e7fba0 | 2331 | q = in_search_path(&lp, *i); |
0ec0deaa LP |
2332 | if (q < 0) |
2333 | return q; | |
2334 | if (q > 0) | |
2335 | continue; | |
2336 | ||
319a4f4b | 2337 | if (!GREEDY_REALLOC0(todo, n_todo + 2)) |
0ec0deaa LP |
2338 | return -ENOMEM; |
2339 | ||
8af35ba6 EV |
2340 | todo[n_todo] = strdup(*i); |
2341 | if (!todo[n_todo]) | |
2342 | return -ENOMEM; | |
2343 | ||
2344 | n_todo++; | |
e94937df LN |
2345 | } |
2346 | ||
0ec0deaa | 2347 | strv_uniq(todo); |
e94937df | 2348 | |
0ec0deaa LP |
2349 | r = 0; |
2350 | STRV_FOREACH(i, todo) { | |
401017e0 | 2351 | _cleanup_free_ char *new_path = NULL; |
0ec0deaa | 2352 | |
401017e0 LP |
2353 | new_path = path_make_absolute(basename(*i), config_path); |
2354 | if (!new_path) | |
0ec0deaa LP |
2355 | return -ENOMEM; |
2356 | ||
d3e85c9c | 2357 | q = create_symlink(&lp, *i, new_path, flags & UNIT_FILE_FORCE, changes, n_changes); |
0ec0deaa LP |
2358 | if (q < 0 && r >= 0) |
2359 | r = q; | |
2d5c93c7 MS |
2360 | } |
2361 | ||
0ec0deaa LP |
2362 | return r; |
2363 | } | |
2364 | ||
c3e7fba0 | 2365 | static int path_shall_revert(const LookupPaths *lp, const char *path) { |
344ca755 LP |
2366 | int r; |
2367 | ||
c3e7fba0 | 2368 | assert(lp); |
344ca755 LP |
2369 | assert(path); |
2370 | ||
2371 | /* Checks whether the path is one where the drop-in directories shall be removed. */ | |
2372 | ||
c3e7fba0 | 2373 | r = path_is_config(lp, path, true); |
344ca755 LP |
2374 | if (r != 0) |
2375 | return r; | |
2376 | ||
c3e7fba0 | 2377 | r = path_is_control(lp, path); |
344ca755 LP |
2378 | if (r != 0) |
2379 | return r; | |
2380 | ||
c3e7fba0 | 2381 | return path_is_transient(lp, path); |
344ca755 LP |
2382 | } |
2383 | ||
2384 | int unit_file_revert( | |
2385 | UnitFileScope scope, | |
2386 | const char *root_dir, | |
2387 | char **files, | |
2388 | UnitFileChange **changes, | |
da6053d0 | 2389 | size_t *n_changes) { |
344ca755 LP |
2390 | |
2391 | _cleanup_set_free_free_ Set *remove_symlinks_to = NULL; | |
c3e7fba0 | 2392 | _cleanup_(lookup_paths_free) LookupPaths lp = {}; |
344ca755 | 2393 | _cleanup_strv_free_ char **todo = NULL; |
319a4f4b | 2394 | size_t n_todo = 0; |
344ca755 LP |
2395 | int r, q; |
2396 | ||
2397 | /* Puts a unit file back into vendor state. This means: | |
2398 | * | |
2399 | * a) we remove all drop-in snippets added by the user ("config"), add to transient units ("transient"), and | |
2400 | * added via "systemctl set-property" ("control"), but not if the drop-in is generated ("generated"). | |
2401 | * | |
2402 | * c) if there's a vendor unit file (i.e. one in /usr) we remove any configured overriding unit files (i.e. in | |
2403 | * "config", but not in "transient" or "control" or even "generated"). | |
2404 | * | |
4f25723c | 2405 | * We remove all that in both the runtime and the persistent directories, if that applies. |
344ca755 LP |
2406 | */ |
2407 | ||
c3e7fba0 | 2408 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
344ca755 LP |
2409 | if (r < 0) |
2410 | return r; | |
2411 | ||
2412 | STRV_FOREACH(i, files) { | |
2413 | bool has_vendor = false; | |
344ca755 LP |
2414 | |
2415 | if (!unit_name_is_valid(*i, UNIT_NAME_ANY)) | |
2416 | return -EINVAL; | |
2417 | ||
c3e7fba0 | 2418 | STRV_FOREACH(p, lp.search_path) { |
344ca755 LP |
2419 | _cleanup_free_ char *path = NULL, *dropin = NULL; |
2420 | struct stat st; | |
2421 | ||
2422 | path = path_make_absolute(*i, *p); | |
2423 | if (!path) | |
2424 | return -ENOMEM; | |
2425 | ||
2426 | r = lstat(path, &st); | |
2427 | if (r < 0) { | |
2428 | if (errno != ENOENT) | |
2429 | return -errno; | |
2430 | } else if (S_ISREG(st.st_mode)) { | |
2431 | /* Check if there's a vendor version */ | |
c3e7fba0 | 2432 | r = path_is_vendor_or_generator(&lp, path); |
344ca755 LP |
2433 | if (r < 0) |
2434 | return r; | |
2435 | if (r > 0) | |
2436 | has_vendor = true; | |
2437 | } | |
2438 | ||
b910cc72 | 2439 | dropin = strjoin(path, ".d"); |
344ca755 LP |
2440 | if (!dropin) |
2441 | return -ENOMEM; | |
2442 | ||
2443 | r = lstat(dropin, &st); | |
2444 | if (r < 0) { | |
2445 | if (errno != ENOENT) | |
2446 | return -errno; | |
2447 | } else if (S_ISDIR(st.st_mode)) { | |
2448 | /* Remove the drop-ins */ | |
c3e7fba0 | 2449 | r = path_shall_revert(&lp, dropin); |
344ca755 LP |
2450 | if (r < 0) |
2451 | return r; | |
2452 | if (r > 0) { | |
319a4f4b | 2453 | if (!GREEDY_REALLOC0(todo, n_todo + 2)) |
344ca755 LP |
2454 | return -ENOMEM; |
2455 | ||
1cc6c93a | 2456 | todo[n_todo++] = TAKE_PTR(dropin); |
344ca755 LP |
2457 | } |
2458 | } | |
2459 | } | |
2460 | ||
2461 | if (!has_vendor) | |
2462 | continue; | |
2463 | ||
2464 | /* OK, there's a vendor version, hence drop all configuration versions */ | |
c3e7fba0 | 2465 | STRV_FOREACH(p, lp.search_path) { |
344ca755 LP |
2466 | _cleanup_free_ char *path = NULL; |
2467 | struct stat st; | |
2468 | ||
2469 | path = path_make_absolute(*i, *p); | |
2470 | if (!path) | |
2471 | return -ENOMEM; | |
2472 | ||
2473 | r = lstat(path, &st); | |
2474 | if (r < 0) { | |
2475 | if (errno != ENOENT) | |
2476 | return -errno; | |
2477 | } else if (S_ISREG(st.st_mode) || S_ISLNK(st.st_mode)) { | |
c3e7fba0 | 2478 | r = path_is_config(&lp, path, true); |
344ca755 LP |
2479 | if (r < 0) |
2480 | return r; | |
2481 | if (r > 0) { | |
319a4f4b | 2482 | if (!GREEDY_REALLOC0(todo, n_todo + 2)) |
344ca755 LP |
2483 | return -ENOMEM; |
2484 | ||
1cc6c93a | 2485 | todo[n_todo++] = TAKE_PTR(path); |
344ca755 LP |
2486 | } |
2487 | } | |
2488 | } | |
2489 | } | |
2490 | ||
2491 | strv_uniq(todo); | |
2492 | ||
2493 | r = 0; | |
2494 | STRV_FOREACH(i, todo) { | |
2495 | _cleanup_strv_free_ char **fs = NULL; | |
2496 | const char *rp; | |
344ca755 LP |
2497 | |
2498 | (void) get_files_in_directory(*i, &fs); | |
2499 | ||
2500 | q = rm_rf(*i, REMOVE_ROOT|REMOVE_PHYSICAL); | |
2501 | if (q < 0 && q != -ENOENT && r >= 0) { | |
2502 | r = q; | |
2503 | continue; | |
2504 | } | |
2505 | ||
2506 | STRV_FOREACH(j, fs) { | |
2507 | _cleanup_free_ char *t = NULL; | |
2508 | ||
657ee2d8 | 2509 | t = path_join(*i, *j); |
344ca755 LP |
2510 | if (!t) |
2511 | return -ENOMEM; | |
2512 | ||
2513 | unit_file_changes_add(changes, n_changes, UNIT_FILE_UNLINK, t, NULL); | |
2514 | } | |
2515 | ||
2516 | unit_file_changes_add(changes, n_changes, UNIT_FILE_UNLINK, *i, NULL); | |
2517 | ||
c3e7fba0 | 2518 | rp = skip_root(lp.root_dir, *i); |
344ca755 LP |
2519 | q = mark_symlink_for_removal(&remove_symlinks_to, rp ?: *i); |
2520 | if (q < 0) | |
2521 | return q; | |
2522 | } | |
2523 | ||
c3e7fba0 | 2524 | q = remove_marked_symlinks(remove_symlinks_to, lp.runtime_config, &lp, false, changes, n_changes); |
344ca755 LP |
2525 | if (r >= 0) |
2526 | r = q; | |
2527 | ||
c3e7fba0 | 2528 | q = remove_marked_symlinks(remove_symlinks_to, lp.persistent_config, &lp, false, changes, n_changes); |
344ca755 LP |
2529 | if (r >= 0) |
2530 | r = q; | |
2531 | ||
2532 | return r; | |
2533 | } | |
2534 | ||
0ec0deaa LP |
2535 | int unit_file_add_dependency( |
2536 | UnitFileScope scope, | |
9b69770a | 2537 | UnitFileFlags file_flags, |
0ec0deaa LP |
2538 | const char *root_dir, |
2539 | char **files, | |
2540 | const char *target, | |
2541 | UnitDependency dep, | |
0ec0deaa | 2542 | UnitFileChange **changes, |
da6053d0 | 2543 | size_t *n_changes) { |
0ec0deaa | 2544 | |
c3e7fba0 | 2545 | _cleanup_(lookup_paths_free) LookupPaths lp = {}; |
0ec0deaa | 2546 | _cleanup_(install_context_done) InstallContext c = {}; |
0ec0deaa | 2547 | UnitFileInstallInfo *i, *target_info; |
e1c5c2b0 | 2548 | const char *config_path; |
0ec0deaa LP |
2549 | int r; |
2550 | ||
2551 | assert(scope >= 0); | |
2552 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
2553 | assert(target); | |
2554 | ||
2555 | if (!IN_SET(dep, UNIT_WANTS, UNIT_REQUIRES)) | |
2556 | return -EINVAL; | |
2557 | ||
2558 | if (!unit_name_is_valid(target, UNIT_NAME_ANY)) | |
2559 | return -EINVAL; | |
2560 | ||
c3e7fba0 | 2561 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
0ec0deaa LP |
2562 | if (r < 0) |
2563 | return r; | |
2564 | ||
c3e7fba0 | 2565 | config_path = (file_flags & UNIT_FILE_RUNTIME) ? lp.runtime_config : lp.persistent_config; |
d0fd66a3 LP |
2566 | if (!config_path) |
2567 | return -ENXIO; | |
0ec0deaa | 2568 | |
c3e7fba0 | 2569 | r = install_info_discover_and_check(scope, &c, &lp, target, SEARCH_FOLLOW_CONFIG_SYMLINKS, |
1e475a0a | 2570 | &target_info, changes, n_changes); |
76adb5b8 LP |
2571 | if (r < 0) |
2572 | return r; | |
0ec0deaa LP |
2573 | |
2574 | assert(target_info->type == UNIT_FILE_TYPE_REGULAR); | |
e94937df | 2575 | |
0ec0deaa LP |
2576 | STRV_FOREACH(f, files) { |
2577 | char ***l; | |
2578 | ||
c3e7fba0 | 2579 | r = install_info_discover_and_check(scope, &c, &lp, *f, SEARCH_FOLLOW_CONFIG_SYMLINKS, |
1e475a0a | 2580 | &i, changes, n_changes); |
76adb5b8 LP |
2581 | if (r < 0) |
2582 | return r; | |
0ec0deaa LP |
2583 | |
2584 | assert(i->type == UNIT_FILE_TYPE_REGULAR); | |
2585 | ||
2586 | /* We didn't actually load anything from the unit | |
2587 | * file, but instead just add in our new symlink to | |
2588 | * create. */ | |
e94937df LN |
2589 | |
2590 | if (dep == UNIT_WANTS) | |
0ec0deaa | 2591 | l = &i->wanted_by; |
e94937df | 2592 | else |
0ec0deaa | 2593 | l = &i->required_by; |
e94937df | 2594 | |
0ec0deaa | 2595 | strv_free(*l); |
bea1a013 | 2596 | *l = strv_new(target_info->name); |
0ec0deaa LP |
2597 | if (!*l) |
2598 | return -ENOMEM; | |
e94937df LN |
2599 | } |
2600 | ||
c3e7fba0 | 2601 | return install_context_apply(scope, file_flags, &c, &lp, config_path, |
9b69770a | 2602 | SEARCH_FOLLOW_CONFIG_SYMLINKS, changes, n_changes); |
e94937df LN |
2603 | } |
2604 | ||
83096483 LP |
2605 | int unit_file_enable( |
2606 | UnitFileScope scope, | |
9b69770a | 2607 | UnitFileFlags file_flags, |
83096483 | 2608 | const char *root_dir, |
7195aa42 | 2609 | char **files, |
83096483 | 2610 | UnitFileChange **changes, |
da6053d0 | 2611 | size_t *n_changes) { |
83096483 | 2612 | |
c3e7fba0 | 2613 | _cleanup_(lookup_paths_free) LookupPaths lp = {}; |
59ccf93d | 2614 | _cleanup_(install_context_done) InstallContext c = {}; |
e1c5c2b0 | 2615 | const char *config_path; |
0ec0deaa | 2616 | UnitFileInstallInfo *i; |
83096483 LP |
2617 | int r; |
2618 | ||
2619 | assert(scope >= 0); | |
2620 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
2621 | ||
c3e7fba0 | 2622 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
83096483 LP |
2623 | if (r < 0) |
2624 | return r; | |
2625 | ||
c3e7fba0 | 2626 | config_path = config_path_from_flags(&lp, file_flags); |
d0fd66a3 LP |
2627 | if (!config_path) |
2628 | return -ENXIO; | |
83096483 | 2629 | |
0ec0deaa | 2630 | STRV_FOREACH(f, files) { |
c3e7fba0 | 2631 | r = install_info_discover_and_check(scope, &c, &lp, *f, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS, |
1e475a0a | 2632 | &i, changes, n_changes); |
76adb5b8 LP |
2633 | if (r < 0) |
2634 | return r; | |
0ec0deaa LP |
2635 | |
2636 | assert(i->type == UNIT_FILE_TYPE_REGULAR); | |
83096483 LP |
2637 | } |
2638 | ||
729e3769 | 2639 | /* This will return the number of symlink rules that were |
d25e100b LP |
2640 | supposed to be created, not the ones actually created. This |
2641 | is useful to determine whether the passed files had any | |
2642 | installation data at all. */ | |
b91a3b02 | 2643 | |
c3e7fba0 | 2644 | return install_context_apply(scope, file_flags, &c, &lp, config_path, SEARCH_LOAD, changes, n_changes); |
83096483 LP |
2645 | } |
2646 | ||
2647 | int unit_file_disable( | |
2648 | UnitFileScope scope, | |
b3796dd8 | 2649 | UnitFileFlags flags, |
83096483 | 2650 | const char *root_dir, |
7195aa42 | 2651 | char **files, |
83096483 | 2652 | UnitFileChange **changes, |
da6053d0 | 2653 | size_t *n_changes) { |
83096483 | 2654 | |
c3e7fba0 | 2655 | _cleanup_(lookup_paths_free) LookupPaths lp = {}; |
59ccf93d | 2656 | _cleanup_(install_context_done) InstallContext c = {}; |
7fd1b19b | 2657 | _cleanup_set_free_free_ Set *remove_symlinks_to = NULL; |
e1c5c2b0 | 2658 | const char *config_path; |
0ec0deaa | 2659 | int r; |
83096483 LP |
2660 | |
2661 | assert(scope >= 0); | |
2662 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
2663 | ||
c3e7fba0 | 2664 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
83096483 LP |
2665 | if (r < 0) |
2666 | return r; | |
2667 | ||
c3e7fba0 | 2668 | config_path = config_path_from_flags(&lp, flags); |
1830ac51 MB |
2669 | if (!config_path) |
2670 | return -ENXIO; | |
2671 | ||
83096483 | 2672 | STRV_FOREACH(i, files) { |
0ec0deaa LP |
2673 | if (!unit_name_is_valid(*i, UNIT_NAME_ANY)) |
2674 | return -EINVAL; | |
2675 | ||
c3e7fba0 | 2676 | r = install_info_add(&c, *i, NULL, lp.root_dir, /* auxiliary= */ false, NULL); |
83096483 | 2677 | if (r < 0) |
d9e5e694 | 2678 | return r; |
83096483 LP |
2679 | } |
2680 | ||
c3e7fba0 | 2681 | r = install_context_mark_for_removal(scope, &c, &lp, &remove_symlinks_to, config_path, changes, n_changes); |
0ec0deaa LP |
2682 | if (r < 0) |
2683 | return r; | |
83096483 | 2684 | |
d3e85c9c | 2685 | return remove_marked_symlinks(remove_symlinks_to, config_path, &lp, flags & UNIT_FILE_DRY_RUN, changes, n_changes); |
83096483 LP |
2686 | } |
2687 | ||
2688 | int unit_file_reenable( | |
2689 | UnitFileScope scope, | |
b3796dd8 | 2690 | UnitFileFlags flags, |
83096483 | 2691 | const char *root_dir, |
7195aa42 | 2692 | char **files, |
83096483 | 2693 | UnitFileChange **changes, |
da6053d0 | 2694 | size_t *n_changes) { |
0ec0deaa LP |
2695 | |
2696 | char **n; | |
92d430a9 | 2697 | int r; |
0ec0deaa | 2698 | size_t l, i; |
83096483 | 2699 | |
0ec0deaa LP |
2700 | /* First, we invoke the disable command with only the basename... */ |
2701 | l = strv_length(files); | |
2702 | n = newa(char*, l+1); | |
2703 | for (i = 0; i < l; i++) | |
2704 | n[i] = basename(files[i]); | |
2705 | n[i] = NULL; | |
2706 | ||
b3796dd8 | 2707 | r = unit_file_disable(scope, flags, root_dir, n, changes, n_changes); |
83096483 | 2708 | if (r < 0) |
d9e5e694 | 2709 | return r; |
83096483 | 2710 | |
0ec0deaa | 2711 | /* But the enable command with the full name */ |
b3796dd8 | 2712 | return unit_file_enable(scope, flags, root_dir, files, changes, n_changes); |
83096483 LP |
2713 | } |
2714 | ||
99504dd4 VP |
2715 | int unit_file_set_default( |
2716 | UnitFileScope scope, | |
b3796dd8 | 2717 | UnitFileFlags flags, |
99504dd4 | 2718 | const char *root_dir, |
0ec0deaa | 2719 | const char *name, |
99504dd4 | 2720 | UnitFileChange **changes, |
da6053d0 | 2721 | size_t *n_changes) { |
99504dd4 | 2722 | |
c3e7fba0 | 2723 | _cleanup_(lookup_paths_free) LookupPaths lp = {}; |
59ccf93d | 2724 | _cleanup_(install_context_done) InstallContext c = {}; |
0ec0deaa | 2725 | UnitFileInstallInfo *i; |
60bec8e4 | 2726 | const char *new_path; |
99504dd4 | 2727 | int r; |
99504dd4 VP |
2728 | |
2729 | assert(scope >= 0); | |
2730 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
0ec0deaa | 2731 | assert(name); |
99504dd4 | 2732 | |
401017e0 | 2733 | if (unit_name_to_type(name) != UNIT_TARGET) /* this also validates the name */ |
0ec0deaa LP |
2734 | return -EINVAL; |
2735 | if (streq(name, SPECIAL_DEFAULT_TARGET)) | |
99504dd4 VP |
2736 | return -EINVAL; |
2737 | ||
c3e7fba0 | 2738 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
99504dd4 VP |
2739 | if (r < 0) |
2740 | return r; | |
2741 | ||
c3e7fba0 | 2742 | r = install_info_discover_and_check(scope, &c, &lp, name, 0, &i, changes, n_changes); |
76adb5b8 LP |
2743 | if (r < 0) |
2744 | return r; | |
99504dd4 | 2745 | |
c3e7fba0 | 2746 | new_path = strjoina(lp.persistent_config, "/" SPECIAL_DEFAULT_TARGET); |
d3e85c9c | 2747 | return create_symlink(&lp, i->path, new_path, flags & UNIT_FILE_FORCE, changes, n_changes); |
99504dd4 VP |
2748 | } |
2749 | ||
2750 | int unit_file_get_default( | |
2751 | UnitFileScope scope, | |
2752 | const char *root_dir, | |
2753 | char **name) { | |
2754 | ||
c3e7fba0 | 2755 | _cleanup_(lookup_paths_free) LookupPaths lp = {}; |
0ec0deaa LP |
2756 | _cleanup_(install_context_done) InstallContext c = {}; |
2757 | UnitFileInstallInfo *i; | |
2758 | char *n; | |
99504dd4 VP |
2759 | int r; |
2760 | ||
16ed0233 LP |
2761 | assert(scope >= 0); |
2762 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
2763 | assert(name); | |
2764 | ||
c3e7fba0 | 2765 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
0ec0deaa LP |
2766 | if (r < 0) |
2767 | return r; | |
99504dd4 | 2768 | |
c3e7fba0 | 2769 | r = install_info_discover(scope, &c, &lp, SPECIAL_DEFAULT_TARGET, SEARCH_FOLLOW_CONFIG_SYMLINKS, |
59108fbe | 2770 | &i, NULL, NULL); |
0ec0deaa LP |
2771 | if (r < 0) |
2772 | return r; | |
c3e7fba0 | 2773 | r = install_info_may_process(i, &lp, NULL, 0); |
76adb5b8 LP |
2774 | if (r < 0) |
2775 | return r; | |
99504dd4 | 2776 | |
0ec0deaa LP |
2777 | n = strdup(i->name); |
2778 | if (!n) | |
2779 | return -ENOMEM; | |
99504dd4 | 2780 | |
0ec0deaa LP |
2781 | *name = n; |
2782 | return 0; | |
99504dd4 VP |
2783 | } |
2784 | ||
d6d98276 | 2785 | int unit_file_lookup_state( |
83096483 | 2786 | UnitFileScope scope, |
c3e7fba0 | 2787 | const LookupPaths *lp, |
0ec0deaa LP |
2788 | const char *name, |
2789 | UnitFileState *ret) { | |
83096483 | 2790 | |
0ec0deaa LP |
2791 | _cleanup_(install_context_done) InstallContext c = {}; |
2792 | UnitFileInstallInfo *i; | |
2793 | UnitFileState state; | |
2794 | int r; | |
83096483 | 2795 | |
c3e7fba0 | 2796 | assert(lp); |
0ec0deaa | 2797 | assert(name); |
83096483 | 2798 | |
7410616c | 2799 | if (!unit_name_is_valid(name, UNIT_NAME_ANY)) |
83096483 LP |
2800 | return -EINVAL; |
2801 | ||
c3e7fba0 | 2802 | r = install_info_discover(scope, &c, lp, name, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS, |
59108fbe | 2803 | &i, NULL, NULL); |
0ec0deaa | 2804 | if (r < 0) |
3e8d06d9 ZJS |
2805 | return log_debug_errno(r, "Failed to discover unit %s: %m", name); |
2806 | ||
2807 | assert(IN_SET(i->type, UNIT_FILE_TYPE_REGULAR, UNIT_FILE_TYPE_MASKED)); | |
2808 | log_debug("Found unit %s at %s (%s)", name, strna(i->path), | |
2809 | i->type == UNIT_FILE_TYPE_REGULAR ? "regular file" : "mask"); | |
83096483 | 2810 | |
0ec0deaa LP |
2811 | /* Shortcut things, if the caller just wants to know if this unit exists. */ |
2812 | if (!ret) | |
2813 | return 0; | |
83096483 | 2814 | |
0ec0deaa | 2815 | switch (i->type) { |
67820a0c | 2816 | |
0ec0deaa | 2817 | case UNIT_FILE_TYPE_MASKED: |
c3e7fba0 | 2818 | r = path_is_runtime(lp, i->path, true); |
385eb996 LP |
2819 | if (r < 0) |
2820 | return r; | |
2821 | ||
2822 | state = r > 0 ? UNIT_FILE_MASKED_RUNTIME : UNIT_FILE_MASKED; | |
0ec0deaa | 2823 | break; |
83096483 | 2824 | |
0ec0deaa | 2825 | case UNIT_FILE_TYPE_REGULAR: |
15d7ab87 ZJS |
2826 | /* Check if the name we were querying is actually an alias */ |
2827 | if (!streq(name, basename(i->path)) && !unit_name_is_valid(i->name, UNIT_NAME_INSTANCE)) { | |
2828 | state = UNIT_FILE_ALIAS; | |
2829 | break; | |
2830 | } | |
2831 | ||
c3e7fba0 | 2832 | r = path_is_generator(lp, i->path); |
f4139308 LP |
2833 | if (r < 0) |
2834 | return r; | |
2835 | if (r > 0) { | |
2836 | state = UNIT_FILE_GENERATED; | |
2837 | break; | |
2838 | } | |
2839 | ||
c3e7fba0 | 2840 | r = path_is_transient(lp, i->path); |
e4fca67f LP |
2841 | if (r < 0) |
2842 | return r; | |
2843 | if (r > 0) { | |
2844 | state = UNIT_FILE_TRANSIENT; | |
2845 | break; | |
2846 | } | |
2847 | ||
5cd8ae31 ZJS |
2848 | /* Check if any of the Alias= symlinks have been created. |
2849 | * We ignore other aliases, and only check those that would | |
2850 | * be created by systemctl enable for this unit. */ | |
c3e7fba0 | 2851 | r = find_symlinks_in_scope(scope, lp, i, true, &state); |
d9b4b48f ZJS |
2852 | if (r < 0) |
2853 | return r; | |
2854 | if (r > 0) | |
2855 | break; | |
2856 | ||
2857 | /* Check if the file is known under other names. If it is, | |
2858 | * it might be in use. Report that as UNIT_FILE_INDIRECT. */ | |
c3e7fba0 | 2859 | r = find_symlinks_in_scope(scope, lp, i, false, &state); |
d9e5e694 ZJS |
2860 | if (r < 0) |
2861 | return r; | |
d9b4b48f ZJS |
2862 | if (r > 0) |
2863 | state = UNIT_FILE_INDIRECT; | |
2864 | else { | |
7a7ec2bf | 2865 | if (unit_file_install_info_has_rules(i)) |
0ec0deaa | 2866 | state = UNIT_FILE_DISABLED; |
7a7ec2bf | 2867 | else if (unit_file_install_info_has_also(i)) |
0ec0deaa LP |
2868 | state = UNIT_FILE_INDIRECT; |
2869 | else | |
2870 | state = UNIT_FILE_STATIC; | |
2871 | } | |
83096483 | 2872 | |
0ec0deaa LP |
2873 | break; |
2874 | ||
2875 | default: | |
04499a70 | 2876 | assert_not_reached(); |
83096483 LP |
2877 | } |
2878 | ||
0ec0deaa LP |
2879 | *ret = state; |
2880 | return 0; | |
83096483 LP |
2881 | } |
2882 | ||
0ec0deaa | 2883 | int unit_file_get_state( |
a8ffe6fb ZJS |
2884 | UnitFileScope scope, |
2885 | const char *root_dir, | |
0ec0deaa LP |
2886 | const char *name, |
2887 | UnitFileState *ret) { | |
a8ffe6fb | 2888 | |
c3e7fba0 | 2889 | _cleanup_(lookup_paths_free) LookupPaths lp = {}; |
a8ffe6fb ZJS |
2890 | int r; |
2891 | ||
2892 | assert(scope >= 0); | |
2893 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
2894 | assert(name); | |
2895 | ||
c3e7fba0 | 2896 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
a8ffe6fb ZJS |
2897 | if (r < 0) |
2898 | return r; | |
2899 | ||
c3e7fba0 | 2900 | return unit_file_lookup_state(scope, &lp, name, ret); |
a8ffe6fb ZJS |
2901 | } |
2902 | ||
c3e7fba0 | 2903 | int unit_file_exists(UnitFileScope scope, const LookupPaths *lp, const char *name) { |
e735decc LP |
2904 | _cleanup_(install_context_done) InstallContext c = {}; |
2905 | int r; | |
2906 | ||
c3e7fba0 | 2907 | assert(lp); |
e735decc LP |
2908 | assert(name); |
2909 | ||
2910 | if (!unit_name_is_valid(name, UNIT_NAME_ANY)) | |
2911 | return -EINVAL; | |
2912 | ||
c3e7fba0 | 2913 | r = install_info_discover(scope, &c, lp, name, 0, NULL, NULL, NULL); |
e735decc LP |
2914 | if (r == -ENOENT) |
2915 | return 0; | |
2916 | if (r < 0) | |
2917 | return r; | |
2918 | ||
2919 | return 1; | |
2920 | } | |
2921 | ||
4c9565ee RB |
2922 | static int split_pattern_into_name_and_instances(const char *pattern, char **out_unit_name, char ***out_instances) { |
2923 | _cleanup_strv_free_ char **instances = NULL; | |
2924 | _cleanup_free_ char *unit_name = NULL; | |
2925 | int r; | |
2926 | ||
2927 | assert(pattern); | |
2928 | assert(out_instances); | |
2929 | assert(out_unit_name); | |
2930 | ||
82bd4da7 | 2931 | r = extract_first_word(&pattern, &unit_name, NULL, EXTRACT_RETAIN_ESCAPE); |
4c9565ee RB |
2932 | if (r < 0) |
2933 | return r; | |
2934 | ||
2935 | /* We handle the instances logic when unit name is extracted */ | |
2936 | if (pattern) { | |
2937 | /* We only create instances when a rule of templated unit | |
2938 | * is seen. A rule like enable foo@.service a b c will | |
2939 | * result in an array of (a, b, c) as instance names */ | |
2940 | if (!unit_name_is_valid(unit_name, UNIT_NAME_TEMPLATE)) | |
2941 | return -EINVAL; | |
2942 | ||
2943 | instances = strv_split(pattern, WHITESPACE); | |
2944 | if (!instances) | |
2945 | return -ENOMEM; | |
2946 | ||
2947 | *out_instances = TAKE_PTR(instances); | |
2948 | } | |
2949 | ||
2950 | *out_unit_name = TAKE_PTR(unit_name); | |
2951 | ||
2952 | return 0; | |
2953 | } | |
2954 | ||
e0b8a238 | 2955 | static int presets_find_config(UnitFileScope scope, const char *root_dir, char ***files) { |
10fd1d46 ZJS |
2956 | static const char* const system_dirs[] = {CONF_PATHS("systemd/system-preset"), NULL}; |
2957 | static const char* const user_dirs[] = {CONF_PATHS_USR("systemd/user-preset"), NULL}; | |
f7767d76 | 2958 | const char* const* dirs; |
83096483 LP |
2959 | |
2960 | assert(scope >= 0); | |
2961 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
0ec0deaa | 2962 | |
a05294ff | 2963 | if (scope == UNIT_FILE_SYSTEM) |
10fd1d46 | 2964 | dirs = system_dirs; |
a05294ff | 2965 | else if (IN_SET(scope, UNIT_FILE_GLOBAL, UNIT_FILE_USER)) |
10fd1d46 | 2966 | dirs = user_dirs; |
a05294ff | 2967 | else |
04499a70 | 2968 | assert_not_reached(); |
83096483 | 2969 | |
f7767d76 | 2970 | return conf_files_list_strv(files, ".preset", root_dir, 0, dirs); |
e0b8a238 ZJS |
2971 | } |
2972 | ||
8f7b2566 ZJS |
2973 | static int read_presets(UnitFileScope scope, const char *root_dir, UnitFilePresets *presets) { |
2974 | _cleanup_(unit_file_presets_freep) UnitFilePresets ps = {}; | |
e0b8a238 | 2975 | _cleanup_strv_free_ char **files = NULL; |
e0b8a238 ZJS |
2976 | int r; |
2977 | ||
2978 | assert(scope >= 0); | |
2979 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
2980 | assert(presets); | |
2981 | ||
2982 | r = presets_find_config(scope, root_dir, &files); | |
83096483 LP |
2983 | if (r < 0) |
2984 | return r; | |
2985 | ||
cba2ef02 | 2986 | STRV_FOREACH(p, files) { |
c2b2df60 | 2987 | _cleanup_fclose_ FILE *f = NULL; |
d544d1a4 | 2988 | int n = 0; |
83096483 | 2989 | |
cba2ef02 | 2990 | f = fopen(*p, "re"); |
83096483 LP |
2991 | if (!f) { |
2992 | if (errno == ENOENT) | |
2993 | continue; | |
2994 | ||
d9e5e694 | 2995 | return -errno; |
83096483 LP |
2996 | } |
2997 | ||
bef77f37 LP |
2998 | for (;;) { |
2999 | _cleanup_free_ char *line = NULL; | |
8f7b2566 | 3000 | UnitFilePresetRule rule = {}; |
0ec0deaa LP |
3001 | const char *parameter; |
3002 | char *l; | |
83096483 | 3003 | |
bef77f37 LP |
3004 | r = read_line(f, LONG_LINE_MAX, &line); |
3005 | if (r < 0) | |
3006 | return r; | |
3007 | if (r == 0) | |
3008 | break; | |
3009 | ||
83096483 | 3010 | l = strstrip(line); |
d544d1a4 | 3011 | n++; |
83096483 | 3012 | |
0ec0deaa LP |
3013 | if (isempty(l)) |
3014 | continue; | |
3015 | if (strchr(COMMENTS, *l)) | |
83096483 LP |
3016 | continue; |
3017 | ||
0ec0deaa LP |
3018 | parameter = first_word(l, "enable"); |
3019 | if (parameter) { | |
4c9565ee RB |
3020 | char *unit_name; |
3021 | char **instances = NULL; | |
d9e5e694 | 3022 | |
4c9565ee RB |
3023 | /* Unit_name will remain the same as parameter when no instances are specified */ |
3024 | r = split_pattern_into_name_and_instances(parameter, &unit_name, &instances); | |
3025 | if (r < 0) { | |
8ac3c9ab | 3026 | log_syntax(NULL, LOG_WARNING, *p, n, r, "Couldn't parse line '%s'. Ignoring.", line); |
4c9565ee RB |
3027 | continue; |
3028 | } | |
8965d9f8 | 3029 | |
8f7b2566 | 3030 | rule = (UnitFilePresetRule) { |
4c9565ee | 3031 | .pattern = unit_name, |
8965d9f8 | 3032 | .action = PRESET_ENABLE, |
4c9565ee | 3033 | .instances = instances, |
8965d9f8 | 3034 | }; |
0ec0deaa | 3035 | } |
83096483 | 3036 | |
0ec0deaa LP |
3037 | parameter = first_word(l, "disable"); |
3038 | if (parameter) { | |
8965d9f8 | 3039 | char *pattern; |
d9e5e694 | 3040 | |
8965d9f8 AC |
3041 | pattern = strdup(parameter); |
3042 | if (!pattern) | |
3043 | return -ENOMEM; | |
3044 | ||
8f7b2566 | 3045 | rule = (UnitFilePresetRule) { |
8965d9f8 AC |
3046 | .pattern = pattern, |
3047 | .action = PRESET_DISABLE, | |
3048 | }; | |
3049 | } | |
3050 | ||
3051 | if (rule.action) { | |
319a4f4b | 3052 | if (!GREEDY_REALLOC(ps.rules, ps.n_rules + 1)) |
8965d9f8 AC |
3053 | return -ENOMEM; |
3054 | ||
3055 | ps.rules[ps.n_rules++] = rule; | |
0ec0deaa LP |
3056 | continue; |
3057 | } | |
3058 | ||
d544d1a4 | 3059 | log_syntax(NULL, LOG_WARNING, *p, n, 0, "Couldn't parse line '%s'. Ignoring.", line); |
83096483 | 3060 | } |
83096483 LP |
3061 | } |
3062 | ||
8f7b2566 | 3063 | ps.initialized = true; |
8965d9f8 | 3064 | *presets = ps; |
8f7b2566 | 3065 | ps = (UnitFilePresets){}; |
8965d9f8 AC |
3066 | |
3067 | return 0; | |
3068 | } | |
3069 | ||
4c9565ee | 3070 | static int pattern_match_multiple_instances( |
8f7b2566 | 3071 | const UnitFilePresetRule rule, |
4c9565ee RB |
3072 | const char *unit_name, |
3073 | char ***ret) { | |
3074 | ||
3075 | _cleanup_free_ char *templated_name = NULL; | |
3076 | int r; | |
3077 | ||
3078 | /* If no ret is needed or the rule itself does not have instances | |
5238e957 | 3079 | * initialized, we return not matching */ |
4c9565ee RB |
3080 | if (!ret || !rule.instances) |
3081 | return 0; | |
3082 | ||
3083 | r = unit_name_template(unit_name, &templated_name); | |
3084 | if (r < 0) | |
3085 | return r; | |
3086 | if (!streq(rule.pattern, templated_name)) | |
3087 | return 0; | |
3088 | ||
3089 | /* Compose a list of specified instances when unit name is a template */ | |
3090 | if (unit_name_is_valid(unit_name, UNIT_NAME_TEMPLATE)) { | |
4c9565ee | 3091 | _cleanup_strv_free_ char **out_strv = NULL; |
4c9565ee RB |
3092 | |
3093 | STRV_FOREACH(iter, rule.instances) { | |
3094 | _cleanup_free_ char *name = NULL; | |
47ab95fe ZJS |
3095 | |
3096 | r = unit_name_replace_instance(unit_name, *iter, &name); | |
4c9565ee RB |
3097 | if (r < 0) |
3098 | return r; | |
47ab95fe ZJS |
3099 | |
3100 | r = strv_consume(&out_strv, TAKE_PTR(name)); | |
4c9565ee RB |
3101 | if (r < 0) |
3102 | return r; | |
3103 | } | |
3104 | ||
3105 | *ret = TAKE_PTR(out_strv); | |
3106 | return 1; | |
3107 | } else { | |
3108 | /* We now know the input unit name is an instance name */ | |
3109 | _cleanup_free_ char *instance_name = NULL; | |
3110 | ||
3111 | r = unit_name_to_instance(unit_name, &instance_name); | |
3112 | if (r < 0) | |
3113 | return r; | |
3114 | ||
3115 | if (strv_find(rule.instances, instance_name)) | |
3116 | return 1; | |
3117 | } | |
3118 | return 0; | |
3119 | } | |
3120 | ||
8f7b2566 | 3121 | static int query_presets(const char *name, const UnitFilePresets *presets, char ***instance_name_list) { |
8965d9f8 | 3122 | PresetAction action = PRESET_UNKNOWN; |
de8be28e | 3123 | |
8965d9f8 AC |
3124 | if (!unit_name_is_valid(name, UNIT_NAME_ANY)) |
3125 | return -EINVAL; | |
3126 | ||
de8be28e | 3127 | for (size_t i = 0; i < presets->n_rules; i++) |
8f7b2566 ZJS |
3128 | if (pattern_match_multiple_instances(presets->rules[i], name, instance_name_list) > 0 || |
3129 | fnmatch(presets->rules[i].pattern, name, FNM_NOESCAPE) == 0) { | |
3130 | action = presets->rules[i].action; | |
8965d9f8 AC |
3131 | break; |
3132 | } | |
3133 | ||
3134 | switch (action) { | |
3135 | case PRESET_UNKNOWN: | |
3136 | log_debug("Preset files don't specify rule for %s. Enabling.", name); | |
3137 | return 1; | |
3138 | case PRESET_ENABLE: | |
de010b0b | 3139 | if (instance_name_list && *instance_name_list) |
4c9565ee RB |
3140 | STRV_FOREACH(s, *instance_name_list) |
3141 | log_debug("Preset files say enable %s.", *s); | |
de010b0b | 3142 | else |
4c9565ee | 3143 | log_debug("Preset files say enable %s.", name); |
8965d9f8 AC |
3144 | return 1; |
3145 | case PRESET_DISABLE: | |
3146 | log_debug("Preset files say disable %s.", name); | |
3147 | return 0; | |
3148 | default: | |
04499a70 | 3149 | assert_not_reached(); |
8965d9f8 AC |
3150 | } |
3151 | } | |
3152 | ||
8f7b2566 ZJS |
3153 | int unit_file_query_preset(UnitFileScope scope, const char *root_dir, const char *name, UnitFilePresets *cached) { |
3154 | _cleanup_(unit_file_presets_freep) UnitFilePresets tmp = {}; | |
8965d9f8 AC |
3155 | int r; |
3156 | ||
8f7b2566 ZJS |
3157 | if (!cached) |
3158 | cached = &tmp; | |
3159 | if (!cached->initialized) { | |
3160 | r = read_presets(scope, root_dir, cached); | |
3161 | if (r < 0) | |
3162 | return r; | |
3163 | } | |
8965d9f8 | 3164 | |
8f7b2566 | 3165 | return query_presets(name, cached, NULL); |
83096483 LP |
3166 | } |
3167 | ||
0ec0deaa LP |
3168 | static int execute_preset( |
3169 | UnitFileScope scope, | |
9b69770a | 3170 | UnitFileFlags file_flags, |
0ec0deaa LP |
3171 | InstallContext *plus, |
3172 | InstallContext *minus, | |
c3e7fba0 | 3173 | const LookupPaths *lp, |
1830ac51 | 3174 | const char *config_path, |
0ec0deaa LP |
3175 | char **files, |
3176 | UnitFilePresetMode mode, | |
0ec0deaa | 3177 | UnitFileChange **changes, |
da6053d0 | 3178 | size_t *n_changes) { |
0ec0deaa | 3179 | |
1830ac51 | 3180 | int r; |
0ec0deaa LP |
3181 | |
3182 | assert(plus); | |
3183 | assert(minus); | |
c3e7fba0 | 3184 | assert(lp); |
1830ac51 | 3185 | assert(config_path); |
0ec0deaa LP |
3186 | |
3187 | if (mode != UNIT_FILE_PRESET_ENABLE_ONLY) { | |
3188 | _cleanup_set_free_free_ Set *remove_symlinks_to = NULL; | |
3189 | ||
c3e7fba0 | 3190 | r = install_context_mark_for_removal(scope, minus, lp, &remove_symlinks_to, config_path, changes, n_changes); |
1830ac51 MB |
3191 | if (r < 0) |
3192 | return r; | |
0ec0deaa | 3193 | |
c3e7fba0 | 3194 | r = remove_marked_symlinks(remove_symlinks_to, config_path, lp, false, changes, n_changes); |
1830ac51 MB |
3195 | } else |
3196 | r = 0; | |
0ec0deaa LP |
3197 | |
3198 | if (mode != UNIT_FILE_PRESET_DISABLE_ONLY) { | |
1830ac51 MB |
3199 | int q; |
3200 | ||
0ec0deaa | 3201 | /* Returns number of symlinks that where supposed to be installed. */ |
ad5fdd39 ZJS |
3202 | q = install_context_apply(scope, |
3203 | file_flags | UNIT_FILE_IGNORE_AUXILIARY_FAILURE, | |
c3e7fba0 | 3204 | plus, lp, config_path, SEARCH_LOAD, changes, n_changes); |
1830ac51 MB |
3205 | if (r >= 0) { |
3206 | if (q < 0) | |
3207 | r = q; | |
3208 | else | |
3209 | r += q; | |
3210 | } | |
0ec0deaa LP |
3211 | } |
3212 | ||
3213 | return r; | |
3214 | } | |
3215 | ||
3216 | static int preset_prepare_one( | |
3217 | UnitFileScope scope, | |
3218 | InstallContext *plus, | |
3219 | InstallContext *minus, | |
c3e7fba0 | 3220 | LookupPaths *lp, |
af3d8113 | 3221 | const char *name, |
8f7b2566 | 3222 | const UnitFilePresets *presets, |
af3d8113 | 3223 | UnitFileChange **changes, |
da6053d0 | 3224 | size_t *n_changes) { |
0ec0deaa | 3225 | |
11e11fd5 | 3226 | _cleanup_(install_context_done) InstallContext tmp = {}; |
4c9565ee | 3227 | _cleanup_strv_free_ char **instance_name_list = NULL; |
0ec0deaa LP |
3228 | UnitFileInstallInfo *i; |
3229 | int r; | |
3230 | ||
11e11fd5 | 3231 | if (install_info_find(plus, name) || install_info_find(minus, name)) |
0ec0deaa LP |
3232 | return 0; |
3233 | ||
c3e7fba0 | 3234 | r = install_info_discover(scope, &tmp, lp, name, SEARCH_FOLLOW_CONFIG_SYMLINKS, |
59108fbe | 3235 | &i, changes, n_changes); |
11e11fd5 ZJS |
3236 | if (r < 0) |
3237 | return r; | |
3238 | if (!streq(name, i->name)) { | |
10d67460 | 3239 | log_debug("Skipping %s because it is an alias for %s.", name, i->name); |
11e11fd5 ZJS |
3240 | return 0; |
3241 | } | |
3242 | ||
4c9565ee | 3243 | r = query_presets(name, presets, &instance_name_list); |
0ec0deaa LP |
3244 | if (r < 0) |
3245 | return r; | |
3246 | ||
3247 | if (r > 0) { | |
de010b0b | 3248 | if (instance_name_list) |
4c9565ee | 3249 | STRV_FOREACH(s, instance_name_list) { |
c3e7fba0 | 3250 | r = install_info_discover_and_check(scope, plus, lp, *s, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS, |
1e475a0a | 3251 | &i, changes, n_changes); |
4c9565ee RB |
3252 | if (r < 0) |
3253 | return r; | |
3254 | } | |
de010b0b | 3255 | else { |
c3e7fba0 | 3256 | r = install_info_discover_and_check(scope, plus, lp, name, SEARCH_LOAD|SEARCH_FOLLOW_CONFIG_SYMLINKS, |
1e475a0a | 3257 | &i, changes, n_changes); |
4c9565ee RB |
3258 | if (r < 0) |
3259 | return r; | |
3260 | } | |
0ec0deaa | 3261 | |
0ec0deaa | 3262 | } else |
c3e7fba0 | 3263 | r = install_info_discover(scope, minus, lp, name, SEARCH_FOLLOW_CONFIG_SYMLINKS, |
59108fbe | 3264 | &i, changes, n_changes); |
0ec0deaa LP |
3265 | |
3266 | return r; | |
3267 | } | |
3268 | ||
83096483 LP |
3269 | int unit_file_preset( |
3270 | UnitFileScope scope, | |
9b69770a | 3271 | UnitFileFlags file_flags, |
83096483 | 3272 | const char *root_dir, |
7195aa42 | 3273 | char **files, |
d309c1c3 | 3274 | UnitFilePresetMode mode, |
83096483 | 3275 | UnitFileChange **changes, |
da6053d0 | 3276 | size_t *n_changes) { |
83096483 | 3277 | |
59ccf93d | 3278 | _cleanup_(install_context_done) InstallContext plus = {}, minus = {}; |
c3e7fba0 | 3279 | _cleanup_(lookup_paths_free) LookupPaths lp = {}; |
8f7b2566 | 3280 | _cleanup_(unit_file_presets_freep) UnitFilePresets presets = {}; |
1830ac51 | 3281 | const char *config_path; |
0ec0deaa | 3282 | int r; |
83096483 LP |
3283 | |
3284 | assert(scope >= 0); | |
3285 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
86bbe5bf | 3286 | assert(mode < _UNIT_FILE_PRESET_MAX); |
83096483 | 3287 | |
c3e7fba0 | 3288 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
83096483 LP |
3289 | if (r < 0) |
3290 | return r; | |
3291 | ||
c3e7fba0 | 3292 | config_path = (file_flags & UNIT_FILE_RUNTIME) ? lp.runtime_config : lp.persistent_config; |
1830ac51 MB |
3293 | if (!config_path) |
3294 | return -ENXIO; | |
3295 | ||
8965d9f8 AC |
3296 | r = read_presets(scope, root_dir, &presets); |
3297 | if (r < 0) | |
3298 | return r; | |
83096483 | 3299 | |
8965d9f8 | 3300 | STRV_FOREACH(i, files) { |
c3e7fba0 | 3301 | r = preset_prepare_one(scope, &plus, &minus, &lp, *i, &presets, changes, n_changes); |
83096483 | 3302 | if (r < 0) |
d9e5e694 | 3303 | return r; |
83096483 LP |
3304 | } |
3305 | ||
c3e7fba0 | 3306 | return execute_preset(scope, file_flags, &plus, &minus, &lp, config_path, files, mode, changes, n_changes); |
d309c1c3 LP |
3307 | } |
3308 | ||
3309 | int unit_file_preset_all( | |
3310 | UnitFileScope scope, | |
9b69770a | 3311 | UnitFileFlags file_flags, |
d309c1c3 LP |
3312 | const char *root_dir, |
3313 | UnitFilePresetMode mode, | |
d309c1c3 | 3314 | UnitFileChange **changes, |
da6053d0 | 3315 | size_t *n_changes) { |
d309c1c3 | 3316 | |
59ccf93d | 3317 | _cleanup_(install_context_done) InstallContext plus = {}, minus = {}; |
c3e7fba0 | 3318 | _cleanup_(lookup_paths_free) LookupPaths lp = {}; |
8f7b2566 | 3319 | _cleanup_(unit_file_presets_freep) UnitFilePresets presets = {}; |
1830ac51 | 3320 | const char *config_path = NULL; |
0ec0deaa | 3321 | int r; |
d309c1c3 LP |
3322 | |
3323 | assert(scope >= 0); | |
3324 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
86bbe5bf | 3325 | assert(mode < _UNIT_FILE_PRESET_MAX); |
d309c1c3 | 3326 | |
c3e7fba0 | 3327 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
d309c1c3 LP |
3328 | if (r < 0) |
3329 | return r; | |
3330 | ||
c3e7fba0 | 3331 | config_path = (file_flags & UNIT_FILE_RUNTIME) ? lp.runtime_config : lp.persistent_config; |
1830ac51 MB |
3332 | if (!config_path) |
3333 | return -ENXIO; | |
3334 | ||
8965d9f8 AC |
3335 | r = read_presets(scope, root_dir, &presets); |
3336 | if (r < 0) | |
3337 | return r; | |
3338 | ||
c3e7fba0 | 3339 | STRV_FOREACH(i, lp.search_path) { |
d309c1c3 | 3340 | _cleanup_closedir_ DIR *d = NULL; |
d309c1c3 | 3341 | |
401017e0 | 3342 | d = opendir(*i); |
d309c1c3 LP |
3343 | if (!d) { |
3344 | if (errno == ENOENT) | |
3345 | continue; | |
3346 | ||
3347 | return -errno; | |
3348 | } | |
3349 | ||
d25e100b | 3350 | FOREACH_DIRENT(de, d, return -errno) { |
1830ac51 | 3351 | |
7410616c | 3352 | if (!unit_name_is_valid(de->d_name, UNIT_NAME_ANY)) |
d309c1c3 LP |
3353 | continue; |
3354 | ||
0ec0deaa | 3355 | if (!IN_SET(de->d_type, DT_LNK, DT_REG)) |
d309c1c3 LP |
3356 | continue; |
3357 | ||
c3e7fba0 | 3358 | r = preset_prepare_one(scope, &plus, &minus, &lp, de->d_name, &presets, changes, n_changes); |
4a203a51 ZJS |
3359 | if (r < 0 && |
3360 | !IN_SET(r, -EEXIST, -ERFKILL, -EADDRNOTAVAIL, -EIDRM, -EUCLEAN, -ELOOP, -ENOENT)) | |
3361 | /* Ignore generated/transient/missing/invalid units when applying preset, propagate other errors. | |
3362 | * Coordinate with unit_file_dump_changes() above. */ | |
d309c1c3 LP |
3363 | return r; |
3364 | } | |
3365 | } | |
3366 | ||
c3e7fba0 | 3367 | return execute_preset(scope, file_flags, &plus, &minus, &lp, config_path, NULL, mode, changes, n_changes); |
83096483 LP |
3368 | } |
3369 | ||
75db809a | 3370 | static UnitFileList* unit_file_list_free_one(UnitFileList *f) { |
59ccf93d | 3371 | if (!f) |
75db809a | 3372 | return NULL; |
d9e5e694 | 3373 | |
59ccf93d | 3374 | free(f->path); |
75db809a | 3375 | return mfree(f); |
d9e5e694 | 3376 | } |
59ccf93d | 3377 | |
0ec0deaa | 3378 | Hashmap* unit_file_list_free(Hashmap *h) { |
224b0e7a | 3379 | return hashmap_free_with_destructor(h, unit_file_list_free_one); |
0ec0deaa LP |
3380 | } |
3381 | ||
59ccf93d | 3382 | DEFINE_TRIVIAL_CLEANUP_FUNC(UnitFileList*, unit_file_list_free_one); |
d9e5e694 | 3383 | |
83096483 LP |
3384 | int unit_file_get_list( |
3385 | UnitFileScope scope, | |
3386 | const char *root_dir, | |
313fe66f | 3387 | Hashmap *h, |
3388 | char **states, | |
3389 | char **patterns) { | |
83096483 | 3390 | |
c3e7fba0 | 3391 | _cleanup_(lookup_paths_free) LookupPaths lp = {}; |
83096483 LP |
3392 | int r; |
3393 | ||
3394 | assert(scope >= 0); | |
3395 | assert(scope < _UNIT_FILE_SCOPE_MAX); | |
3396 | assert(h); | |
3397 | ||
c3e7fba0 | 3398 | r = lookup_paths_init(&lp, scope, 0, root_dir); |
83096483 LP |
3399 | if (r < 0) |
3400 | return r; | |
3401 | ||
c3e7fba0 | 3402 | STRV_FOREACH(dirname, lp.search_path) { |
da39f6a6 | 3403 | _cleanup_closedir_ DIR *d = NULL; |
83096483 | 3404 | |
9c894b85 | 3405 | d = opendir(*dirname); |
83096483 LP |
3406 | if (!d) { |
3407 | if (errno == ENOENT) | |
3408 | continue; | |
a1feacf7 | 3409 | if (IN_SET(errno, ENOTDIR, EACCES)) { |
9c894b85 | 3410 | log_debug_errno(errno, "Failed to open \"%s\": %m", *dirname); |
a1feacf7 ZJS |
3411 | continue; |
3412 | } | |
83096483 | 3413 | |
d9e5e694 | 3414 | return -errno; |
83096483 LP |
3415 | } |
3416 | ||
d25e100b | 3417 | FOREACH_DIRENT(de, d, return -errno) { |
59ccf93d | 3418 | _cleanup_(unit_file_list_free_onep) UnitFileList *f = NULL; |
83096483 | 3419 | |
7410616c | 3420 | if (!unit_name_is_valid(de->d_name, UNIT_NAME_ANY)) |
83096483 LP |
3421 | continue; |
3422 | ||
313fe66f | 3423 | if (!strv_fnmatch_or_empty(patterns, de->d_name, FNM_NOESCAPE)) |
3424 | continue; | |
3425 | ||
83096483 LP |
3426 | if (hashmap_get(h, de->d_name)) |
3427 | continue; | |
3428 | ||
da39f6a6 | 3429 | if (!IN_SET(de->d_type, DT_LNK, DT_REG)) |
83096483 LP |
3430 | continue; |
3431 | ||
3432 | f = new0(UnitFileList, 1); | |
d9e5e694 ZJS |
3433 | if (!f) |
3434 | return -ENOMEM; | |
83096483 | 3435 | |
9c894b85 | 3436 | f->path = path_make_absolute(de->d_name, *dirname); |
d9e5e694 ZJS |
3437 | if (!f->path) |
3438 | return -ENOMEM; | |
83096483 | 3439 | |
c3e7fba0 | 3440 | r = unit_file_lookup_state(scope, &lp, de->d_name, &f->state); |
d9e5e694 | 3441 | if (r < 0) |
0ec0deaa | 3442 | f->state = UNIT_FILE_BAD; |
81fc054d | 3443 | |
313fe66f | 3444 | if (!strv_isempty(states) && |
3445 | !strv_contains(states, unit_file_state_to_string(f->state))) | |
3446 | continue; | |
3447 | ||
2b6bf07d | 3448 | r = hashmap_put(h, basename(f->path), f); |
d9e5e694 ZJS |
3449 | if (r < 0) |
3450 | return r; | |
0ec0deaa | 3451 | |
d9e5e694 | 3452 | f = NULL; /* prevent cleanup */ |
83096483 LP |
3453 | } |
3454 | } | |
3455 | ||
77cd2c87 | 3456 | return 0; |
83096483 LP |
3457 | } |
3458 | ||
3459 | static const char* const unit_file_state_table[_UNIT_FILE_STATE_MAX] = { | |
babccf14 | 3460 | [UNIT_FILE_ENABLED] = "enabled", |
771faa9a | 3461 | [UNIT_FILE_ENABLED_RUNTIME] = "enabled-runtime", |
babccf14 ZJS |
3462 | [UNIT_FILE_LINKED] = "linked", |
3463 | [UNIT_FILE_LINKED_RUNTIME] = "linked-runtime", | |
15d7ab87 | 3464 | [UNIT_FILE_ALIAS] = "alias", |
babccf14 ZJS |
3465 | [UNIT_FILE_MASKED] = "masked", |
3466 | [UNIT_FILE_MASKED_RUNTIME] = "masked-runtime", | |
3467 | [UNIT_FILE_STATIC] = "static", | |
3468 | [UNIT_FILE_DISABLED] = "disabled", | |
3469 | [UNIT_FILE_INDIRECT] = "indirect", | |
3470 | [UNIT_FILE_GENERATED] = "generated", | |
3471 | [UNIT_FILE_TRANSIENT] = "transient", | |
3472 | [UNIT_FILE_BAD] = "bad", | |
83096483 LP |
3473 | }; |
3474 | ||
3475 | DEFINE_STRING_TABLE_LOOKUP(unit_file_state, UnitFileState); | |
c0576cd6 LP |
3476 | |
3477 | static const char* const unit_file_change_type_table[_UNIT_FILE_CHANGE_TYPE_MAX] = { | |
8ae27441 JS |
3478 | [UNIT_FILE_SYMLINK] = "symlink", |
3479 | [UNIT_FILE_UNLINK] = "unlink", | |
3480 | [UNIT_FILE_IS_MASKED] = "masked", | |
3481 | [UNIT_FILE_IS_DANGLING] = "dangling", | |
3482 | [UNIT_FILE_DESTINATION_NOT_PRESENT] = "destination not present", | |
3aa96361 | 3483 | [UNIT_FILE_AUXILIARY_FAILED] = "auxiliary unit failed", |
c0576cd6 LP |
3484 | }; |
3485 | ||
93419a96 | 3486 | DEFINE_STRING_TABLE_LOOKUP(unit_file_change_type, int); |
d309c1c3 | 3487 | |
86bbe5bf | 3488 | static const char* const unit_file_preset_mode_table[_UNIT_FILE_PRESET_MAX] = { |
babccf14 ZJS |
3489 | [UNIT_FILE_PRESET_FULL] = "full", |
3490 | [UNIT_FILE_PRESET_ENABLE_ONLY] = "enable-only", | |
d309c1c3 LP |
3491 | [UNIT_FILE_PRESET_DISABLE_ONLY] = "disable-only", |
3492 | }; | |
3493 | ||
3494 | DEFINE_STRING_TABLE_LOOKUP(unit_file_preset_mode, UnitFilePresetMode); |