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d6c9574f | 1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
9e2f7c11 LP |
2 | |
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2010 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
9 | under the terms of the GNU Lesser General Public License as published by |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
9e2f7c11 LP |
11 | (at your option) any later version. |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
5430f7f2 | 16 | Lesser General Public License for more details. |
9e2f7c11 | 17 | |
5430f7f2 | 18 | You should have received a copy of the GNU Lesser General Public License |
9e2f7c11 LP |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
20 | ***/ | |
21 | ||
22 | #include <errno.h> | |
11c3a366 TA |
23 | #include <stddef.h> |
24 | #include <stdint.h> | |
25 | #include <stdlib.h> | |
9e2f7c11 LP |
26 | #include <string.h> |
27 | ||
b5efdb8a | 28 | #include "alloc-util.h" |
f01de965 | 29 | #include "bus-label.h" |
8b43440b | 30 | #include "hexdecoct.h" |
07630cea | 31 | #include "path-util.h" |
11c3a366 | 32 | #include "macro.h" |
8b43440b | 33 | #include "string-table.h" |
07630cea | 34 | #include "string-util.h" |
b9a33026 | 35 | #include "strv.h" |
07630cea | 36 | #include "unit-name.h" |
9e2f7c11 LP |
37 | |
38 | #define VALID_CHARS \ | |
4b549144 | 39 | DIGITS LETTERS \ |
4f2d528d | 40 | ":-_.\\" |
9e2f7c11 | 41 | |
7410616c | 42 | bool unit_name_is_valid(const char *n, UnitNameFlags flags) { |
9e2f7c11 LP |
43 | const char *e, *i, *at; |
44 | ||
7410616c | 45 | assert((flags & ~(UNIT_NAME_PLAIN|UNIT_NAME_INSTANCE|UNIT_NAME_TEMPLATE)) == 0); |
9e2f7c11 | 46 | |
7410616c LP |
47 | if (_unlikely_(flags == 0)) |
48 | return false; | |
9e2f7c11 | 49 | |
b9a33026 LP |
50 | if (isempty(n)) |
51 | return false; | |
52 | ||
9e2f7c11 LP |
53 | if (strlen(n) >= UNIT_NAME_MAX) |
54 | return false; | |
55 | ||
71fad675 LP |
56 | e = strrchr(n, '.'); |
57 | if (!e || e == n) | |
9e2f7c11 LP |
58 | return false; |
59 | ||
5f739699 LP |
60 | if (unit_type_from_string(e + 1) < 0) |
61 | return false; | |
62 | ||
9e2f7c11 LP |
63 | for (i = n, at = NULL; i < e; i++) { |
64 | ||
65 | if (*i == '@' && !at) | |
66 | at = i; | |
67 | ||
68 | if (!strchr("@" VALID_CHARS, *i)) | |
69 | return false; | |
70 | } | |
71 | ||
7410616c LP |
72 | if (at == n) |
73 | return false; | |
9e2f7c11 | 74 | |
7410616c LP |
75 | if (flags & UNIT_NAME_PLAIN) |
76 | if (!at) | |
77 | return true; | |
9e2f7c11 | 78 | |
7410616c LP |
79 | if (flags & UNIT_NAME_INSTANCE) |
80 | if (at && e > at + 1) | |
81 | return true; | |
82 | ||
83 | if (flags & UNIT_NAME_TEMPLATE) | |
84 | if (at && e == at + 1) | |
85 | return true; | |
86 | ||
87 | return false; | |
88 | } | |
89 | ||
90 | bool unit_prefix_is_valid(const char *p) { | |
91 | ||
92 | /* We don't allow additional @ in the prefix string */ | |
93 | ||
94 | if (isempty(p)) | |
95 | return false; | |
96 | ||
97 | return in_charset(p, VALID_CHARS); | |
9e2f7c11 LP |
98 | } |
99 | ||
100 | bool unit_instance_is_valid(const char *i) { | |
9e2f7c11 LP |
101 | |
102 | /* The max length depends on the length of the string, so we | |
103 | * don't really check this here. */ | |
104 | ||
b9a33026 | 105 | if (isempty(i)) |
9e2f7c11 LP |
106 | return false; |
107 | ||
108 | /* We allow additional @ in the instance string, we do not | |
109 | * allow them in the prefix! */ | |
110 | ||
b9a33026 | 111 | return in_charset(i, "@" VALID_CHARS); |
9e2f7c11 LP |
112 | } |
113 | ||
7410616c LP |
114 | bool unit_suffix_is_valid(const char *s) { |
115 | if (isempty(s)) | |
116 | return false; | |
9e2f7c11 | 117 | |
7410616c LP |
118 | if (s[0] != '.') |
119 | return false; | |
9e2f7c11 | 120 | |
7410616c | 121 | if (unit_type_from_string(s + 1) < 0) |
9e2f7c11 LP |
122 | return false; |
123 | ||
7410616c LP |
124 | return true; |
125 | } | |
126 | ||
127 | int unit_name_to_prefix(const char *n, char **ret) { | |
128 | const char *p; | |
129 | char *s; | |
130 | ||
131 | assert(n); | |
132 | assert(ret); | |
133 | ||
134 | if (!unit_name_is_valid(n, UNIT_NAME_ANY)) | |
135 | return -EINVAL; | |
136 | ||
137 | p = strchr(n, '@'); | |
138 | if (!p) | |
139 | p = strrchr(n, '.'); | |
140 | ||
141 | assert_se(p); | |
142 | ||
143 | s = strndup(n, p - n); | |
144 | if (!s) | |
145 | return -ENOMEM; | |
146 | ||
147 | *ret = s; | |
148 | return 0; | |
9e2f7c11 LP |
149 | } |
150 | ||
151 | int unit_name_to_instance(const char *n, char **instance) { | |
152 | const char *p, *d; | |
153 | char *i; | |
154 | ||
155 | assert(n); | |
156 | assert(instance); | |
157 | ||
7410616c LP |
158 | if (!unit_name_is_valid(n, UNIT_NAME_ANY)) |
159 | return -EINVAL; | |
160 | ||
9e2f7c11 | 161 | /* Everything past the first @ and before the last . is the instance */ |
35eb6b12 LP |
162 | p = strchr(n, '@'); |
163 | if (!p) { | |
9e2f7c11 LP |
164 | *instance = NULL; |
165 | return 0; | |
166 | } | |
167 | ||
7410616c LP |
168 | p++; |
169 | ||
170 | d = strrchr(p, '.'); | |
b9a33026 LP |
171 | if (!d) |
172 | return -EINVAL; | |
9e2f7c11 | 173 | |
7410616c | 174 | i = strndup(p, d-p); |
35eb6b12 | 175 | if (!i) |
9e2f7c11 LP |
176 | return -ENOMEM; |
177 | ||
178 | *instance = i; | |
b9a33026 | 179 | return 1; |
9e2f7c11 LP |
180 | } |
181 | ||
7410616c | 182 | int unit_name_to_prefix_and_instance(const char *n, char **ret) { |
9e2f7c11 | 183 | const char *d; |
7410616c | 184 | char *s; |
9e2f7c11 LP |
185 | |
186 | assert(n); | |
7410616c LP |
187 | assert(ret); |
188 | ||
189 | if (!unit_name_is_valid(n, UNIT_NAME_ANY)) | |
190 | return -EINVAL; | |
9e2f7c11 | 191 | |
7410616c LP |
192 | d = strrchr(n, '.'); |
193 | if (!d) | |
194 | return -EINVAL; | |
195 | ||
196 | s = strndup(n, d - n); | |
197 | if (!s) | |
198 | return -ENOMEM; | |
199 | ||
200 | *ret = s; | |
201 | return 0; | |
9e2f7c11 LP |
202 | } |
203 | ||
7410616c LP |
204 | UnitType unit_name_to_type(const char *n) { |
205 | const char *e; | |
9e2f7c11 | 206 | |
b9a33026 LP |
207 | assert(n); |
208 | ||
7410616c LP |
209 | if (!unit_name_is_valid(n, UNIT_NAME_ANY)) |
210 | return _UNIT_TYPE_INVALID; | |
9e2f7c11 | 211 | |
7410616c LP |
212 | assert_se(e = strrchr(n, '.')); |
213 | ||
214 | return unit_type_from_string(e + 1); | |
9e2f7c11 LP |
215 | } |
216 | ||
7410616c LP |
217 | int unit_name_change_suffix(const char *n, const char *suffix, char **ret) { |
218 | char *e, *s; | |
9e2f7c11 LP |
219 | size_t a, b; |
220 | ||
221 | assert(n); | |
9e2f7c11 | 222 | assert(suffix); |
7410616c LP |
223 | assert(ret); |
224 | ||
225 | if (!unit_name_is_valid(n, UNIT_NAME_ANY)) | |
226 | return -EINVAL; | |
227 | ||
228 | if (!unit_suffix_is_valid(suffix)) | |
229 | return -EINVAL; | |
9e2f7c11 LP |
230 | |
231 | assert_se(e = strrchr(n, '.')); | |
7410616c | 232 | |
9e2f7c11 LP |
233 | a = e - n; |
234 | b = strlen(suffix); | |
235 | ||
7410616c LP |
236 | s = new(char, a + b + 1); |
237 | if (!s) | |
238 | return -ENOMEM; | |
9e2f7c11 | 239 | |
7410616c LP |
240 | strcpy(mempcpy(s, n, a), suffix); |
241 | *ret = s; | |
242 | ||
243 | return 0; | |
9e2f7c11 LP |
244 | } |
245 | ||
7410616c LP |
246 | int unit_name_build(const char *prefix, const char *instance, const char *suffix, char **ret) { |
247 | char *s; | |
248 | ||
9e2f7c11 | 249 | assert(prefix); |
9e2f7c11 | 250 | assert(suffix); |
7410616c LP |
251 | assert(ret); |
252 | ||
253 | if (!unit_prefix_is_valid(prefix)) | |
254 | return -EINVAL; | |
255 | ||
256 | if (instance && !unit_instance_is_valid(instance)) | |
257 | return -EINVAL; | |
258 | ||
259 | if (!unit_suffix_is_valid(suffix)) | |
260 | return -EINVAL; | |
9e2f7c11 LP |
261 | |
262 | if (!instance) | |
7410616c LP |
263 | s = strappend(prefix, suffix); |
264 | else | |
265 | s = strjoin(prefix, "@", instance, suffix, NULL); | |
266 | if (!s) | |
267 | return -ENOMEM; | |
9e2f7c11 | 268 | |
7410616c LP |
269 | *ret = s; |
270 | return 0; | |
9e2f7c11 LP |
271 | } |
272 | ||
4b712653 | 273 | static char *do_escape_char(char c, char *t) { |
b9a33026 LP |
274 | assert(t); |
275 | ||
4b712653 KS |
276 | *(t++) = '\\'; |
277 | *(t++) = 'x'; | |
278 | *(t++) = hexchar(c >> 4); | |
279 | *(t++) = hexchar(c); | |
b9a33026 | 280 | |
4b712653 KS |
281 | return t; |
282 | } | |
283 | ||
284 | static char *do_escape(const char *f, char *t) { | |
9e2f7c11 LP |
285 | assert(f); |
286 | assert(t); | |
287 | ||
4b712653 KS |
288 | /* do not create units with a leading '.', like for "/.dotdir" mount points */ |
289 | if (*f == '.') { | |
290 | t = do_escape_char(*f, t); | |
291 | f++; | |
292 | } | |
293 | ||
9e2f7c11 LP |
294 | for (; *f; f++) { |
295 | if (*f == '/') | |
8d567588 | 296 | *(t++) = '-'; |
4b712653 KS |
297 | else if (*f == '-' || *f == '\\' || !strchr(VALID_CHARS, *f)) |
298 | t = do_escape_char(*f, t); | |
299 | else | |
9e2f7c11 LP |
300 | *(t++) = *f; |
301 | } | |
302 | ||
303 | return t; | |
304 | } | |
305 | ||
9e2f7c11 LP |
306 | char *unit_name_escape(const char *f) { |
307 | char *r, *t; | |
308 | ||
b9a33026 LP |
309 | assert(f); |
310 | ||
b0193f1c LP |
311 | r = new(char, strlen(f)*4+1); |
312 | if (!r) | |
9e2f7c11 LP |
313 | return NULL; |
314 | ||
315 | t = do_escape(f, r); | |
316 | *t = 0; | |
317 | ||
318 | return r; | |
9e2f7c11 LP |
319 | } |
320 | ||
7410616c LP |
321 | int unit_name_unescape(const char *f, char **ret) { |
322 | _cleanup_free_ char *r = NULL; | |
323 | char *t; | |
9e2f7c11 LP |
324 | |
325 | assert(f); | |
326 | ||
b0193f1c LP |
327 | r = strdup(f); |
328 | if (!r) | |
7410616c | 329 | return -ENOMEM; |
9e2f7c11 LP |
330 | |
331 | for (t = r; *f; f++) { | |
8d567588 | 332 | if (*f == '-') |
9e2f7c11 LP |
333 | *(t++) = '/'; |
334 | else if (*f == '\\') { | |
335 | int a, b; | |
336 | ||
7410616c LP |
337 | if (f[1] != 'x') |
338 | return -EINVAL; | |
339 | ||
340 | a = unhexchar(f[2]); | |
341 | if (a < 0) | |
342 | return -EINVAL; | |
343 | ||
344 | b = unhexchar(f[3]); | |
345 | if (b < 0) | |
346 | return -EINVAL; | |
347 | ||
93c47472 | 348 | *(t++) = (char) (((uint8_t) a << 4U) | (uint8_t) b); |
7410616c | 349 | f += 3; |
9e2f7c11 LP |
350 | } else |
351 | *(t++) = *f; | |
352 | } | |
353 | ||
354 | *t = 0; | |
355 | ||
7410616c LP |
356 | *ret = r; |
357 | r = NULL; | |
358 | ||
359 | return 0; | |
9e2f7c11 LP |
360 | } |
361 | ||
7410616c LP |
362 | int unit_name_path_escape(const char *f, char **ret) { |
363 | char *p, *s; | |
35eb6b12 LP |
364 | |
365 | assert(f); | |
7410616c | 366 | assert(ret); |
35eb6b12 | 367 | |
7410616c | 368 | p = strdupa(f); |
35eb6b12 | 369 | if (!p) |
7410616c | 370 | return -ENOMEM; |
35eb6b12 LP |
371 | |
372 | path_kill_slashes(p); | |
373 | ||
b9a33026 | 374 | if (STR_IN_SET(p, "/", "")) |
7410616c LP |
375 | s = strdup("-"); |
376 | else { | |
377 | char *e; | |
35eb6b12 | 378 | |
7410616c LP |
379 | if (!path_is_safe(p)) |
380 | return -EINVAL; | |
35eb6b12 | 381 | |
7410616c LP |
382 | /* Truncate trailing slashes */ |
383 | e = endswith(p, "/"); | |
384 | if (e) | |
385 | *e = 0; | |
35eb6b12 | 386 | |
7410616c LP |
387 | /* Truncate leading slashes */ |
388 | if (p[0] == '/') | |
389 | p++; | |
35eb6b12 | 390 | |
7410616c | 391 | s = unit_name_escape(p); |
35eb6b12 | 392 | } |
7410616c LP |
393 | if (!s) |
394 | return -ENOMEM; | |
35eb6b12 | 395 | |
7410616c LP |
396 | *ret = s; |
397 | return 0; | |
35eb6b12 LP |
398 | } |
399 | ||
7410616c | 400 | int unit_name_path_unescape(const char *f, char **ret) { |
93c47472 | 401 | char *s; |
7410616c | 402 | int r; |
9e2f7c11 | 403 | |
7410616c | 404 | assert(f); |
9e2f7c11 | 405 | |
93c47472 LP |
406 | if (isempty(f)) |
407 | return -EINVAL; | |
408 | ||
7410616c LP |
409 | if (streq(f, "-")) { |
410 | s = strdup("/"); | |
411 | if (!s) | |
412 | return -ENOMEM; | |
93c47472 LP |
413 | } else { |
414 | char *w; | |
6ef9eeed | 415 | |
93c47472 LP |
416 | r = unit_name_unescape(f, &w); |
417 | if (r < 0) | |
418 | return r; | |
29283ea4 | 419 | |
93c47472 LP |
420 | /* Don't accept trailing or leading slashes */ |
421 | if (startswith(w, "/") || endswith(w, "/")) { | |
422 | free(w); | |
423 | return -EINVAL; | |
424 | } | |
29283ea4 | 425 | |
93c47472 LP |
426 | /* Prefix a slash again */ |
427 | s = strappend("/", w); | |
7410616c | 428 | free(w); |
93c47472 LP |
429 | if (!s) |
430 | return -ENOMEM; | |
431 | ||
432 | if (!path_is_safe(s)) { | |
433 | free(s); | |
434 | return -EINVAL; | |
435 | } | |
7410616c | 436 | } |
6ef9eeed | 437 | |
93c47472 LP |
438 | if (ret) |
439 | *ret = s; | |
440 | else | |
441 | free(s); | |
442 | ||
7410616c | 443 | return 0; |
29283ea4 MS |
444 | } |
445 | ||
7410616c | 446 | int unit_name_replace_instance(const char *f, const char *i, char **ret) { |
9e2f7c11 | 447 | const char *p, *e; |
7410616c | 448 | char *s; |
8556879e | 449 | size_t a, b; |
9e2f7c11 LP |
450 | |
451 | assert(f); | |
b9a33026 | 452 | assert(i); |
7410616c | 453 | assert(ret); |
9e2f7c11 | 454 | |
7410616c LP |
455 | if (!unit_name_is_valid(f, UNIT_NAME_INSTANCE|UNIT_NAME_TEMPLATE)) |
456 | return -EINVAL; | |
457 | if (!unit_instance_is_valid(i)) | |
458 | return -EINVAL; | |
9e2f7c11 | 459 | |
7410616c LP |
460 | assert_se(p = strchr(f, '@')); |
461 | assert_se(e = strrchr(f, '.')); | |
9e2f7c11 | 462 | |
8556879e LP |
463 | a = p - f; |
464 | b = strlen(i); | |
9e2f7c11 | 465 | |
7410616c LP |
466 | s = new(char, a + 1 + b + strlen(e) + 1); |
467 | if (!s) | |
468 | return -ENOMEM; | |
9e2f7c11 | 469 | |
7410616c LP |
470 | strcpy(mempcpy(mempcpy(s, f, a + 1), i, b), e); |
471 | ||
472 | *ret = s; | |
473 | return 0; | |
9e2f7c11 LP |
474 | } |
475 | ||
7410616c | 476 | int unit_name_template(const char *f, char **ret) { |
9e2f7c11 | 477 | const char *p, *e; |
7410616c | 478 | char *s; |
9e2f7c11 LP |
479 | size_t a; |
480 | ||
b9a33026 | 481 | assert(f); |
7410616c | 482 | assert(ret); |
b9a33026 | 483 | |
7410616c LP |
484 | if (!unit_name_is_valid(f, UNIT_NAME_INSTANCE|UNIT_NAME_TEMPLATE)) |
485 | return -EINVAL; | |
9e2f7c11 | 486 | |
7410616c LP |
487 | assert_se(p = strchr(f, '@')); |
488 | assert_se(e = strrchr(f, '.')); | |
b9a33026 LP |
489 | |
490 | a = p - f; | |
9e2f7c11 | 491 | |
7410616c LP |
492 | s = new(char, a + 1 + strlen(e) + 1); |
493 | if (!s) | |
494 | return -ENOMEM; | |
9e2f7c11 | 495 | |
7410616c LP |
496 | strcpy(mempcpy(s, f, a + 1), e); |
497 | ||
498 | *ret = s; | |
499 | return 0; | |
9e2f7c11 | 500 | } |
a16e1123 | 501 | |
7410616c | 502 | int unit_name_from_path(const char *path, const char *suffix, char **ret) { |
58d08142 | 503 | _cleanup_free_ char *p = NULL; |
7410616c LP |
504 | char *s = NULL; |
505 | int r; | |
5ffceb2f | 506 | |
a16e1123 LP |
507 | assert(path); |
508 | assert(suffix); | |
7410616c | 509 | assert(ret); |
a16e1123 | 510 | |
7410616c LP |
511 | if (!unit_suffix_is_valid(suffix)) |
512 | return -EINVAL; | |
5ffceb2f | 513 | |
7410616c LP |
514 | r = unit_name_path_escape(path, &p); |
515 | if (r < 0) | |
516 | return r; | |
517 | ||
518 | s = strappend(p, suffix); | |
519 | if (!s) | |
520 | return -ENOMEM; | |
521 | ||
522 | *ret = s; | |
523 | return 0; | |
a16e1123 LP |
524 | } |
525 | ||
7410616c | 526 | int unit_name_from_path_instance(const char *prefix, const char *path, const char *suffix, char **ret) { |
58d08142 | 527 | _cleanup_free_ char *p = NULL; |
7410616c LP |
528 | char *s; |
529 | int r; | |
9fff8a1f | 530 | |
35eb6b12 | 531 | assert(prefix); |
9fff8a1f LP |
532 | assert(path); |
533 | assert(suffix); | |
7410616c | 534 | assert(ret); |
9fff8a1f | 535 | |
7410616c LP |
536 | if (!unit_prefix_is_valid(prefix)) |
537 | return -EINVAL; | |
538 | ||
539 | if (!unit_suffix_is_valid(suffix)) | |
540 | return -EINVAL; | |
541 | ||
542 | r = unit_name_path_escape(path, &p); | |
543 | if (r < 0) | |
544 | return r; | |
545 | ||
546 | s = strjoin(prefix, "@", p, suffix, NULL); | |
547 | if (!s) | |
548 | return -ENOMEM; | |
9fff8a1f | 549 | |
7410616c LP |
550 | *ret = s; |
551 | return 0; | |
9fff8a1f LP |
552 | } |
553 | ||
7410616c LP |
554 | int unit_name_to_path(const char *name, char **ret) { |
555 | _cleanup_free_ char *prefix = NULL; | |
556 | int r; | |
a16e1123 LP |
557 | |
558 | assert(name); | |
559 | ||
7410616c LP |
560 | r = unit_name_to_prefix(name, &prefix); |
561 | if (r < 0) | |
562 | return r; | |
a16e1123 | 563 | |
7410616c | 564 | return unit_name_path_unescape(prefix, ret); |
9fc50704 | 565 | } |
48899192 MS |
566 | |
567 | char *unit_dbus_path_from_name(const char *name) { | |
9444b1f2 | 568 | _cleanup_free_ char *e = NULL; |
48899192 | 569 | |
35eb6b12 LP |
570 | assert(name); |
571 | ||
f01de965 | 572 | e = bus_label_escape(name); |
48899192 MS |
573 | if (!e) |
574 | return NULL; | |
575 | ||
9444b1f2 | 576 | return strappend("/org/freedesktop/systemd1/unit/", e); |
48899192 | 577 | } |
b0193f1c | 578 | |
ede3a796 LP |
579 | int unit_name_from_dbus_path(const char *path, char **name) { |
580 | const char *e; | |
581 | char *n; | |
582 | ||
583 | e = startswith(path, "/org/freedesktop/systemd1/unit/"); | |
584 | if (!e) | |
585 | return -EINVAL; | |
586 | ||
f01de965 | 587 | n = bus_label_unescape(e); |
ede3a796 LP |
588 | if (!n) |
589 | return -ENOMEM; | |
590 | ||
591 | *name = n; | |
592 | return 0; | |
593 | } | |
594 | ||
21b735e7 LP |
595 | const char* unit_dbus_interface_from_type(UnitType t) { |
596 | ||
597 | static const char *const table[_UNIT_TYPE_MAX] = { | |
598 | [UNIT_SERVICE] = "org.freedesktop.systemd1.Service", | |
599 | [UNIT_SOCKET] = "org.freedesktop.systemd1.Socket", | |
600 | [UNIT_BUSNAME] = "org.freedesktop.systemd1.BusName", | |
601 | [UNIT_TARGET] = "org.freedesktop.systemd1.Target", | |
21b735e7 LP |
602 | [UNIT_DEVICE] = "org.freedesktop.systemd1.Device", |
603 | [UNIT_MOUNT] = "org.freedesktop.systemd1.Mount", | |
604 | [UNIT_AUTOMOUNT] = "org.freedesktop.systemd1.Automount", | |
605 | [UNIT_SWAP] = "org.freedesktop.systemd1.Swap", | |
606 | [UNIT_TIMER] = "org.freedesktop.systemd1.Timer", | |
607 | [UNIT_PATH] = "org.freedesktop.systemd1.Path", | |
608 | [UNIT_SLICE] = "org.freedesktop.systemd1.Slice", | |
609 | [UNIT_SCOPE] = "org.freedesktop.systemd1.Scope", | |
610 | }; | |
611 | ||
612 | if (t < 0) | |
613 | return NULL; | |
614 | if (t >= _UNIT_TYPE_MAX) | |
615 | return NULL; | |
616 | ||
617 | return table[t]; | |
618 | } | |
619 | ||
620 | const char *unit_dbus_interface_from_name(const char *name) { | |
621 | UnitType t; | |
622 | ||
623 | t = unit_name_to_type(name); | |
624 | if (t < 0) | |
625 | return NULL; | |
626 | ||
627 | return unit_dbus_interface_from_type(t); | |
628 | } | |
629 | ||
7410616c LP |
630 | static char *do_escape_mangle(const char *f, UnitNameMangle allow_globs, char *t) { |
631 | const char *valid_chars; | |
632 | ||
633 | assert(f); | |
634 | assert(IN_SET(allow_globs, UNIT_NAME_GLOB, UNIT_NAME_NOGLOB)); | |
635 | assert(t); | |
636 | ||
637 | /* We'll only escape the obvious characters here, to play | |
638 | * safe. */ | |
639 | ||
640 | valid_chars = allow_globs == UNIT_NAME_GLOB ? "@" VALID_CHARS "[]!-*?" : "@" VALID_CHARS; | |
641 | ||
642 | for (; *f; f++) { | |
643 | if (*f == '/') | |
644 | *(t++) = '-'; | |
645 | else if (!strchr(valid_chars, *f)) | |
646 | t = do_escape_char(*f, t); | |
647 | else | |
648 | *(t++) = *f; | |
649 | } | |
650 | ||
651 | return t; | |
652 | } | |
653 | ||
e3e0314b | 654 | /** |
5e03c6e3 ZJS |
655 | * Convert a string to a unit name. /dev/blah is converted to dev-blah.device, |
656 | * /blah/blah is converted to blah-blah.mount, anything else is left alone, | |
657 | * except that @suffix is appended if a valid unit suffix is not present. | |
658 | * | |
b938cb90 | 659 | * If @allow_globs, globs characters are preserved. Otherwise, they are escaped. |
e3e0314b | 660 | */ |
7410616c LP |
661 | int unit_name_mangle_with_suffix(const char *name, UnitNameMangle allow_globs, const char *suffix, char **ret) { |
662 | char *s, *t; | |
663 | int r; | |
b0193f1c LP |
664 | |
665 | assert(name); | |
5e03c6e3 | 666 | assert(suffix); |
7410616c | 667 | assert(ret); |
b0193f1c | 668 | |
7410616c LP |
669 | if (isempty(name)) /* We cannot mangle empty unit names to become valid, sorry. */ |
670 | return -EINVAL; | |
b0193f1c | 671 | |
7410616c LP |
672 | if (!unit_suffix_is_valid(suffix)) |
673 | return -EINVAL; | |
b0193f1c | 674 | |
7410616c LP |
675 | if (unit_name_is_valid(name, UNIT_NAME_ANY)) { |
676 | /* No mangling necessary... */ | |
677 | s = strdup(name); | |
678 | if (!s) | |
679 | return -ENOMEM; | |
1dcf6065 | 680 | |
7410616c LP |
681 | *ret = s; |
682 | return 0; | |
683 | } | |
1dcf6065 | 684 | |
7410616c LP |
685 | if (is_device_path(name)) { |
686 | r = unit_name_from_path(name, ".device", ret); | |
687 | if (r >= 0) | |
688 | return 1; | |
689 | if (r != -EINVAL) | |
690 | return r; | |
691 | } | |
1dcf6065 | 692 | |
7410616c LP |
693 | if (path_is_absolute(name)) { |
694 | r = unit_name_from_path(name, ".mount", ret); | |
695 | if (r >= 0) | |
696 | return 1; | |
697 | if (r != -EINVAL) | |
698 | return r; | |
699 | } | |
1dcf6065 | 700 | |
7410616c LP |
701 | s = new(char, strlen(name) * 4 + strlen(suffix) + 1); |
702 | if (!s) | |
703 | return -ENOMEM; | |
5f739699 | 704 | |
7410616c LP |
705 | t = do_escape_mangle(name, allow_globs, s); |
706 | *t = 0; | |
5f739699 | 707 | |
7410616c LP |
708 | if (unit_name_to_type(s) < 0) |
709 | strcpy(t, suffix); | |
5f739699 | 710 | |
7410616c LP |
711 | *ret = s; |
712 | return 1; | |
5f739699 | 713 | } |
fb6becb4 | 714 | |
93c47472 LP |
715 | int slice_build_parent_slice(const char *slice, char **ret) { |
716 | char *s, *dash; | |
2fc09a9c | 717 | int r; |
93c47472 LP |
718 | |
719 | assert(slice); | |
720 | assert(ret); | |
721 | ||
722 | if (!slice_name_is_valid(slice)) | |
723 | return -EINVAL; | |
724 | ||
725 | if (streq(slice, "-.slice")) { | |
726 | *ret = NULL; | |
727 | return 0; | |
728 | } | |
729 | ||
730 | s = strdup(slice); | |
731 | if (!s) | |
732 | return -ENOMEM; | |
733 | ||
734 | dash = strrchr(s, '-'); | |
735 | if (dash) | |
736 | strcpy(dash, ".slice"); | |
737 | else { | |
2fc09a9c | 738 | r = free_and_strdup(&s, "-.slice"); |
8e542fcd DM |
739 | if (r < 0) { |
740 | free(s); | |
2fc09a9c | 741 | return r; |
8e542fcd | 742 | } |
93c47472 LP |
743 | } |
744 | ||
745 | *ret = s; | |
746 | return 1; | |
747 | } | |
748 | ||
7410616c LP |
749 | int slice_build_subslice(const char *slice, const char*name, char **ret) { |
750 | char *subslice; | |
fb6becb4 LP |
751 | |
752 | assert(slice); | |
753 | assert(name); | |
7410616c LP |
754 | assert(ret); |
755 | ||
93c47472 | 756 | if (!slice_name_is_valid(slice)) |
7410616c LP |
757 | return -EINVAL; |
758 | ||
759 | if (!unit_prefix_is_valid(name)) | |
760 | return -EINVAL; | |
fb6becb4 LP |
761 | |
762 | if (streq(slice, "-.slice")) | |
7410616c | 763 | subslice = strappend(name, ".slice"); |
fb6becb4 LP |
764 | else { |
765 | char *e; | |
766 | ||
93c47472 | 767 | assert_se(e = endswith(slice, ".slice")); |
fb6becb4 | 768 | |
7410616c LP |
769 | subslice = new(char, (e - slice) + 1 + strlen(name) + 6 + 1); |
770 | if (!subslice) | |
fb6becb4 LP |
771 | return -ENOMEM; |
772 | ||
7410616c | 773 | stpcpy(stpcpy(stpcpy(mempcpy(subslice, slice, e - slice), "-"), name), ".slice"); |
fb6becb4 LP |
774 | } |
775 | ||
7410616c | 776 | *ret = subslice; |
fb6becb4 LP |
777 | return 0; |
778 | } | |
cb87a73b | 779 | |
93c47472 LP |
780 | bool slice_name_is_valid(const char *name) { |
781 | const char *p, *e; | |
782 | bool dash = false; | |
783 | ||
784 | if (!unit_name_is_valid(name, UNIT_NAME_PLAIN)) | |
785 | return false; | |
786 | ||
787 | if (streq(name, "-.slice")) | |
788 | return true; | |
789 | ||
790 | e = endswith(name, ".slice"); | |
791 | if (!e) | |
792 | return false; | |
793 | ||
794 | for (p = name; p < e; p++) { | |
795 | ||
796 | if (*p == '-') { | |
797 | ||
798 | /* Don't allow initial dash */ | |
799 | if (p == name) | |
800 | return false; | |
801 | ||
802 | /* Don't allow multiple dashes */ | |
803 | if (dash) | |
804 | return false; | |
805 | ||
806 | dash = true; | |
807 | } else | |
808 | dash = false; | |
809 | } | |
810 | ||
811 | /* Don't allow trailing hash */ | |
812 | if (dash) | |
813 | return false; | |
814 | ||
815 | return true; | |
816 | } | |
817 | ||
7410616c LP |
818 | static const char* const unit_type_table[_UNIT_TYPE_MAX] = { |
819 | [UNIT_SERVICE] = "service", | |
820 | [UNIT_SOCKET] = "socket", | |
821 | [UNIT_BUSNAME] = "busname", | |
822 | [UNIT_TARGET] = "target", | |
7410616c LP |
823 | [UNIT_DEVICE] = "device", |
824 | [UNIT_MOUNT] = "mount", | |
825 | [UNIT_AUTOMOUNT] = "automount", | |
826 | [UNIT_SWAP] = "swap", | |
827 | [UNIT_TIMER] = "timer", | |
828 | [UNIT_PATH] = "path", | |
829 | [UNIT_SLICE] = "slice", | |
21b735e7 | 830 | [UNIT_SCOPE] = "scope", |
7410616c LP |
831 | }; |
832 | ||
833 | DEFINE_STRING_TABLE_LOOKUP(unit_type, UnitType); | |
834 | ||
835 | static const char* const unit_load_state_table[_UNIT_LOAD_STATE_MAX] = { | |
836 | [UNIT_STUB] = "stub", | |
837 | [UNIT_LOADED] = "loaded", | |
838 | [UNIT_NOT_FOUND] = "not-found", | |
839 | [UNIT_ERROR] = "error", | |
840 | [UNIT_MERGED] = "merged", | |
841 | [UNIT_MASKED] = "masked" | |
842 | }; | |
843 | ||
844 | DEFINE_STRING_TABLE_LOOKUP(unit_load_state, UnitLoadState); | |
845 | ||
978c8b63 ZJS |
846 | static const char* const unit_active_state_table[_UNIT_ACTIVE_STATE_MAX] = { |
847 | [UNIT_ACTIVE] = "active", | |
848 | [UNIT_RELOADING] = "reloading", | |
849 | [UNIT_INACTIVE] = "inactive", | |
850 | [UNIT_FAILED] = "failed", | |
851 | [UNIT_ACTIVATING] = "activating", | |
852 | [UNIT_DEACTIVATING] = "deactivating" | |
853 | }; | |
854 | ||
855 | DEFINE_STRING_TABLE_LOOKUP(unit_active_state, UnitActiveState); | |
856 | ||
7e55de3b ZJS |
857 | static const char* const automount_state_table[_AUTOMOUNT_STATE_MAX] = { |
858 | [AUTOMOUNT_DEAD] = "dead", | |
859 | [AUTOMOUNT_WAITING] = "waiting", | |
860 | [AUTOMOUNT_RUNNING] = "running", | |
861 | [AUTOMOUNT_FAILED] = "failed" | |
862 | }; | |
863 | ||
864 | DEFINE_STRING_TABLE_LOOKUP(automount_state, AutomountState); | |
865 | ||
866 | static const char* const busname_state_table[_BUSNAME_STATE_MAX] = { | |
867 | [BUSNAME_DEAD] = "dead", | |
868 | [BUSNAME_MAKING] = "making", | |
869 | [BUSNAME_REGISTERED] = "registered", | |
870 | [BUSNAME_LISTENING] = "listening", | |
871 | [BUSNAME_RUNNING] = "running", | |
872 | [BUSNAME_SIGTERM] = "sigterm", | |
873 | [BUSNAME_SIGKILL] = "sigkill", | |
874 | [BUSNAME_FAILED] = "failed", | |
875 | }; | |
876 | ||
877 | DEFINE_STRING_TABLE_LOOKUP(busname_state, BusNameState); | |
878 | ||
879 | static const char* const device_state_table[_DEVICE_STATE_MAX] = { | |
880 | [DEVICE_DEAD] = "dead", | |
881 | [DEVICE_TENTATIVE] = "tentative", | |
882 | [DEVICE_PLUGGED] = "plugged", | |
883 | }; | |
884 | ||
885 | DEFINE_STRING_TABLE_LOOKUP(device_state, DeviceState); | |
886 | ||
887 | static const char* const mount_state_table[_MOUNT_STATE_MAX] = { | |
888 | [MOUNT_DEAD] = "dead", | |
889 | [MOUNT_MOUNTING] = "mounting", | |
890 | [MOUNT_MOUNTING_DONE] = "mounting-done", | |
891 | [MOUNT_MOUNTED] = "mounted", | |
892 | [MOUNT_REMOUNTING] = "remounting", | |
893 | [MOUNT_UNMOUNTING] = "unmounting", | |
894 | [MOUNT_MOUNTING_SIGTERM] = "mounting-sigterm", | |
895 | [MOUNT_MOUNTING_SIGKILL] = "mounting-sigkill", | |
896 | [MOUNT_REMOUNTING_SIGTERM] = "remounting-sigterm", | |
897 | [MOUNT_REMOUNTING_SIGKILL] = "remounting-sigkill", | |
898 | [MOUNT_UNMOUNTING_SIGTERM] = "unmounting-sigterm", | |
899 | [MOUNT_UNMOUNTING_SIGKILL] = "unmounting-sigkill", | |
900 | [MOUNT_FAILED] = "failed" | |
901 | }; | |
902 | ||
903 | DEFINE_STRING_TABLE_LOOKUP(mount_state, MountState); | |
904 | ||
905 | static const char* const path_state_table[_PATH_STATE_MAX] = { | |
906 | [PATH_DEAD] = "dead", | |
907 | [PATH_WAITING] = "waiting", | |
908 | [PATH_RUNNING] = "running", | |
909 | [PATH_FAILED] = "failed" | |
910 | }; | |
911 | ||
912 | DEFINE_STRING_TABLE_LOOKUP(path_state, PathState); | |
913 | ||
914 | static const char* const scope_state_table[_SCOPE_STATE_MAX] = { | |
915 | [SCOPE_DEAD] = "dead", | |
916 | [SCOPE_RUNNING] = "running", | |
917 | [SCOPE_ABANDONED] = "abandoned", | |
918 | [SCOPE_STOP_SIGTERM] = "stop-sigterm", | |
919 | [SCOPE_STOP_SIGKILL] = "stop-sigkill", | |
920 | [SCOPE_FAILED] = "failed", | |
921 | }; | |
922 | ||
923 | DEFINE_STRING_TABLE_LOOKUP(scope_state, ScopeState); | |
924 | ||
925 | static const char* const service_state_table[_SERVICE_STATE_MAX] = { | |
926 | [SERVICE_DEAD] = "dead", | |
927 | [SERVICE_START_PRE] = "start-pre", | |
928 | [SERVICE_START] = "start", | |
929 | [SERVICE_START_POST] = "start-post", | |
930 | [SERVICE_RUNNING] = "running", | |
931 | [SERVICE_EXITED] = "exited", | |
932 | [SERVICE_RELOAD] = "reload", | |
933 | [SERVICE_STOP] = "stop", | |
934 | [SERVICE_STOP_SIGABRT] = "stop-sigabrt", | |
935 | [SERVICE_STOP_SIGTERM] = "stop-sigterm", | |
936 | [SERVICE_STOP_SIGKILL] = "stop-sigkill", | |
937 | [SERVICE_STOP_POST] = "stop-post", | |
938 | [SERVICE_FINAL_SIGTERM] = "final-sigterm", | |
939 | [SERVICE_FINAL_SIGKILL] = "final-sigkill", | |
940 | [SERVICE_FAILED] = "failed", | |
941 | [SERVICE_AUTO_RESTART] = "auto-restart", | |
942 | }; | |
943 | ||
944 | DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState); | |
945 | ||
946 | static const char* const slice_state_table[_SLICE_STATE_MAX] = { | |
947 | [SLICE_DEAD] = "dead", | |
948 | [SLICE_ACTIVE] = "active" | |
949 | }; | |
950 | ||
951 | DEFINE_STRING_TABLE_LOOKUP(slice_state, SliceState); | |
952 | ||
7e55de3b ZJS |
953 | static const char* const socket_state_table[_SOCKET_STATE_MAX] = { |
954 | [SOCKET_DEAD] = "dead", | |
955 | [SOCKET_START_PRE] = "start-pre", | |
956 | [SOCKET_START_CHOWN] = "start-chown", | |
957 | [SOCKET_START_POST] = "start-post", | |
958 | [SOCKET_LISTENING] = "listening", | |
959 | [SOCKET_RUNNING] = "running", | |
960 | [SOCKET_STOP_PRE] = "stop-pre", | |
961 | [SOCKET_STOP_PRE_SIGTERM] = "stop-pre-sigterm", | |
962 | [SOCKET_STOP_PRE_SIGKILL] = "stop-pre-sigkill", | |
963 | [SOCKET_STOP_POST] = "stop-post", | |
964 | [SOCKET_FINAL_SIGTERM] = "final-sigterm", | |
965 | [SOCKET_FINAL_SIGKILL] = "final-sigkill", | |
966 | [SOCKET_FAILED] = "failed" | |
967 | }; | |
968 | ||
969 | DEFINE_STRING_TABLE_LOOKUP(socket_state, SocketState); | |
970 | ||
971 | static const char* const swap_state_table[_SWAP_STATE_MAX] = { | |
972 | [SWAP_DEAD] = "dead", | |
973 | [SWAP_ACTIVATING] = "activating", | |
974 | [SWAP_ACTIVATING_DONE] = "activating-done", | |
975 | [SWAP_ACTIVE] = "active", | |
976 | [SWAP_DEACTIVATING] = "deactivating", | |
977 | [SWAP_ACTIVATING_SIGTERM] = "activating-sigterm", | |
978 | [SWAP_ACTIVATING_SIGKILL] = "activating-sigkill", | |
979 | [SWAP_DEACTIVATING_SIGTERM] = "deactivating-sigterm", | |
980 | [SWAP_DEACTIVATING_SIGKILL] = "deactivating-sigkill", | |
981 | [SWAP_FAILED] = "failed" | |
982 | }; | |
983 | ||
984 | DEFINE_STRING_TABLE_LOOKUP(swap_state, SwapState); | |
985 | ||
986 | static const char* const target_state_table[_TARGET_STATE_MAX] = { | |
987 | [TARGET_DEAD] = "dead", | |
988 | [TARGET_ACTIVE] = "active" | |
989 | }; | |
990 | ||
991 | DEFINE_STRING_TABLE_LOOKUP(target_state, TargetState); | |
992 | ||
993 | static const char* const timer_state_table[_TIMER_STATE_MAX] = { | |
994 | [TIMER_DEAD] = "dead", | |
995 | [TIMER_WAITING] = "waiting", | |
996 | [TIMER_RUNNING] = "running", | |
997 | [TIMER_ELAPSED] = "elapsed", | |
998 | [TIMER_FAILED] = "failed" | |
999 | }; | |
1000 | ||
1001 | DEFINE_STRING_TABLE_LOOKUP(timer_state, TimerState); | |
1002 | ||
cb87a73b LN |
1003 | static const char* const unit_dependency_table[_UNIT_DEPENDENCY_MAX] = { |
1004 | [UNIT_REQUIRES] = "Requires", | |
cb87a73b | 1005 | [UNIT_REQUISITE] = "Requisite", |
cb87a73b LN |
1006 | [UNIT_WANTS] = "Wants", |
1007 | [UNIT_BINDS_TO] = "BindsTo", | |
1008 | [UNIT_PART_OF] = "PartOf", | |
1009 | [UNIT_REQUIRED_BY] = "RequiredBy", | |
be7d9ff7 | 1010 | [UNIT_REQUISITE_OF] = "RequisiteOf", |
cb87a73b LN |
1011 | [UNIT_WANTED_BY] = "WantedBy", |
1012 | [UNIT_BOUND_BY] = "BoundBy", | |
1013 | [UNIT_CONSISTS_OF] = "ConsistsOf", | |
1014 | [UNIT_CONFLICTS] = "Conflicts", | |
1015 | [UNIT_CONFLICTED_BY] = "ConflictedBy", | |
1016 | [UNIT_BEFORE] = "Before", | |
1017 | [UNIT_AFTER] = "After", | |
1018 | [UNIT_ON_FAILURE] = "OnFailure", | |
1019 | [UNIT_TRIGGERS] = "Triggers", | |
1020 | [UNIT_TRIGGERED_BY] = "TriggeredBy", | |
1021 | [UNIT_PROPAGATES_RELOAD_TO] = "PropagatesReloadTo", | |
1022 | [UNIT_RELOAD_PROPAGATED_FROM] = "ReloadPropagatedFrom", | |
1023 | [UNIT_JOINS_NAMESPACE_OF] = "JoinsNamespaceOf", | |
1024 | [UNIT_REFERENCES] = "References", | |
1025 | [UNIT_REFERENCED_BY] = "ReferencedBy", | |
1026 | }; | |
1027 | ||
1028 | DEFINE_STRING_TABLE_LOOKUP(unit_dependency, UnitDependency); |