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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> | |
23 | #include <string.h> | |
24 | ||
f01de965 | 25 | #include "bus-label.h" |
4b549144 | 26 | #include "def.h" |
07630cea LP |
27 | #include "path-util.h" |
28 | #include "string-util.h" | |
b9a33026 | 29 | #include "strv.h" |
07630cea LP |
30 | #include "util.h" |
31 | #include "unit-name.h" | |
9e2f7c11 LP |
32 | |
33 | #define VALID_CHARS \ | |
4b549144 | 34 | DIGITS LETTERS \ |
4f2d528d | 35 | ":-_.\\" |
9e2f7c11 | 36 | |
7410616c | 37 | bool unit_name_is_valid(const char *n, UnitNameFlags flags) { |
9e2f7c11 LP |
38 | const char *e, *i, *at; |
39 | ||
7410616c | 40 | assert((flags & ~(UNIT_NAME_PLAIN|UNIT_NAME_INSTANCE|UNIT_NAME_TEMPLATE)) == 0); |
9e2f7c11 | 41 | |
7410616c LP |
42 | if (_unlikely_(flags == 0)) |
43 | return false; | |
9e2f7c11 | 44 | |
b9a33026 LP |
45 | if (isempty(n)) |
46 | return false; | |
47 | ||
9e2f7c11 LP |
48 | if (strlen(n) >= UNIT_NAME_MAX) |
49 | return false; | |
50 | ||
71fad675 LP |
51 | e = strrchr(n, '.'); |
52 | if (!e || e == n) | |
9e2f7c11 LP |
53 | return false; |
54 | ||
5f739699 LP |
55 | if (unit_type_from_string(e + 1) < 0) |
56 | return false; | |
57 | ||
9e2f7c11 LP |
58 | for (i = n, at = NULL; i < e; i++) { |
59 | ||
60 | if (*i == '@' && !at) | |
61 | at = i; | |
62 | ||
63 | if (!strchr("@" VALID_CHARS, *i)) | |
64 | return false; | |
65 | } | |
66 | ||
7410616c LP |
67 | if (at == n) |
68 | return false; | |
9e2f7c11 | 69 | |
7410616c LP |
70 | if (flags & UNIT_NAME_PLAIN) |
71 | if (!at) | |
72 | return true; | |
9e2f7c11 | 73 | |
7410616c LP |
74 | if (flags & UNIT_NAME_INSTANCE) |
75 | if (at && e > at + 1) | |
76 | return true; | |
77 | ||
78 | if (flags & UNIT_NAME_TEMPLATE) | |
79 | if (at && e == at + 1) | |
80 | return true; | |
81 | ||
82 | return false; | |
83 | } | |
84 | ||
85 | bool unit_prefix_is_valid(const char *p) { | |
86 | ||
87 | /* We don't allow additional @ in the prefix string */ | |
88 | ||
89 | if (isempty(p)) | |
90 | return false; | |
91 | ||
92 | return in_charset(p, VALID_CHARS); | |
9e2f7c11 LP |
93 | } |
94 | ||
95 | bool unit_instance_is_valid(const char *i) { | |
9e2f7c11 LP |
96 | |
97 | /* The max length depends on the length of the string, so we | |
98 | * don't really check this here. */ | |
99 | ||
b9a33026 | 100 | if (isempty(i)) |
9e2f7c11 LP |
101 | return false; |
102 | ||
103 | /* We allow additional @ in the instance string, we do not | |
104 | * allow them in the prefix! */ | |
105 | ||
b9a33026 | 106 | return in_charset(i, "@" VALID_CHARS); |
9e2f7c11 LP |
107 | } |
108 | ||
7410616c LP |
109 | bool unit_suffix_is_valid(const char *s) { |
110 | if (isempty(s)) | |
111 | return false; | |
9e2f7c11 | 112 | |
7410616c LP |
113 | if (s[0] != '.') |
114 | return false; | |
9e2f7c11 | 115 | |
7410616c | 116 | if (unit_type_from_string(s + 1) < 0) |
9e2f7c11 LP |
117 | return false; |
118 | ||
7410616c LP |
119 | return true; |
120 | } | |
121 | ||
122 | int unit_name_to_prefix(const char *n, char **ret) { | |
123 | const char *p; | |
124 | char *s; | |
125 | ||
126 | assert(n); | |
127 | assert(ret); | |
128 | ||
129 | if (!unit_name_is_valid(n, UNIT_NAME_ANY)) | |
130 | return -EINVAL; | |
131 | ||
132 | p = strchr(n, '@'); | |
133 | if (!p) | |
134 | p = strrchr(n, '.'); | |
135 | ||
136 | assert_se(p); | |
137 | ||
138 | s = strndup(n, p - n); | |
139 | if (!s) | |
140 | return -ENOMEM; | |
141 | ||
142 | *ret = s; | |
143 | return 0; | |
9e2f7c11 LP |
144 | } |
145 | ||
146 | int unit_name_to_instance(const char *n, char **instance) { | |
147 | const char *p, *d; | |
148 | char *i; | |
149 | ||
150 | assert(n); | |
151 | assert(instance); | |
152 | ||
7410616c LP |
153 | if (!unit_name_is_valid(n, UNIT_NAME_ANY)) |
154 | return -EINVAL; | |
155 | ||
9e2f7c11 | 156 | /* Everything past the first @ and before the last . is the instance */ |
35eb6b12 LP |
157 | p = strchr(n, '@'); |
158 | if (!p) { | |
9e2f7c11 LP |
159 | *instance = NULL; |
160 | return 0; | |
161 | } | |
162 | ||
7410616c LP |
163 | p++; |
164 | ||
165 | d = strrchr(p, '.'); | |
b9a33026 LP |
166 | if (!d) |
167 | return -EINVAL; | |
9e2f7c11 | 168 | |
7410616c | 169 | i = strndup(p, d-p); |
35eb6b12 | 170 | if (!i) |
9e2f7c11 LP |
171 | return -ENOMEM; |
172 | ||
173 | *instance = i; | |
b9a33026 | 174 | return 1; |
9e2f7c11 LP |
175 | } |
176 | ||
7410616c | 177 | int unit_name_to_prefix_and_instance(const char *n, char **ret) { |
9e2f7c11 | 178 | const char *d; |
7410616c | 179 | char *s; |
9e2f7c11 LP |
180 | |
181 | assert(n); | |
7410616c LP |
182 | assert(ret); |
183 | ||
184 | if (!unit_name_is_valid(n, UNIT_NAME_ANY)) | |
185 | return -EINVAL; | |
9e2f7c11 | 186 | |
7410616c LP |
187 | d = strrchr(n, '.'); |
188 | if (!d) | |
189 | return -EINVAL; | |
190 | ||
191 | s = strndup(n, d - n); | |
192 | if (!s) | |
193 | return -ENOMEM; | |
194 | ||
195 | *ret = s; | |
196 | return 0; | |
9e2f7c11 LP |
197 | } |
198 | ||
7410616c LP |
199 | UnitType unit_name_to_type(const char *n) { |
200 | const char *e; | |
9e2f7c11 | 201 | |
b9a33026 LP |
202 | assert(n); |
203 | ||
7410616c LP |
204 | if (!unit_name_is_valid(n, UNIT_NAME_ANY)) |
205 | return _UNIT_TYPE_INVALID; | |
9e2f7c11 | 206 | |
7410616c LP |
207 | assert_se(e = strrchr(n, '.')); |
208 | ||
209 | return unit_type_from_string(e + 1); | |
9e2f7c11 LP |
210 | } |
211 | ||
7410616c LP |
212 | int unit_name_change_suffix(const char *n, const char *suffix, char **ret) { |
213 | char *e, *s; | |
9e2f7c11 LP |
214 | size_t a, b; |
215 | ||
216 | assert(n); | |
9e2f7c11 | 217 | assert(suffix); |
7410616c LP |
218 | assert(ret); |
219 | ||
220 | if (!unit_name_is_valid(n, UNIT_NAME_ANY)) | |
221 | return -EINVAL; | |
222 | ||
223 | if (!unit_suffix_is_valid(suffix)) | |
224 | return -EINVAL; | |
9e2f7c11 LP |
225 | |
226 | assert_se(e = strrchr(n, '.')); | |
7410616c | 227 | |
9e2f7c11 LP |
228 | a = e - n; |
229 | b = strlen(suffix); | |
230 | ||
7410616c LP |
231 | s = new(char, a + b + 1); |
232 | if (!s) | |
233 | return -ENOMEM; | |
9e2f7c11 | 234 | |
7410616c LP |
235 | strcpy(mempcpy(s, n, a), suffix); |
236 | *ret = s; | |
237 | ||
238 | return 0; | |
9e2f7c11 LP |
239 | } |
240 | ||
7410616c LP |
241 | int unit_name_build(const char *prefix, const char *instance, const char *suffix, char **ret) { |
242 | char *s; | |
243 | ||
9e2f7c11 | 244 | assert(prefix); |
9e2f7c11 | 245 | assert(suffix); |
7410616c LP |
246 | assert(ret); |
247 | ||
248 | if (!unit_prefix_is_valid(prefix)) | |
249 | return -EINVAL; | |
250 | ||
251 | if (instance && !unit_instance_is_valid(instance)) | |
252 | return -EINVAL; | |
253 | ||
254 | if (!unit_suffix_is_valid(suffix)) | |
255 | return -EINVAL; | |
9e2f7c11 LP |
256 | |
257 | if (!instance) | |
7410616c LP |
258 | s = strappend(prefix, suffix); |
259 | else | |
260 | s = strjoin(prefix, "@", instance, suffix, NULL); | |
261 | if (!s) | |
262 | return -ENOMEM; | |
9e2f7c11 | 263 | |
7410616c LP |
264 | *ret = s; |
265 | return 0; | |
9e2f7c11 LP |
266 | } |
267 | ||
4b712653 | 268 | static char *do_escape_char(char c, char *t) { |
b9a33026 LP |
269 | assert(t); |
270 | ||
4b712653 KS |
271 | *(t++) = '\\'; |
272 | *(t++) = 'x'; | |
273 | *(t++) = hexchar(c >> 4); | |
274 | *(t++) = hexchar(c); | |
b9a33026 | 275 | |
4b712653 KS |
276 | return t; |
277 | } | |
278 | ||
279 | static char *do_escape(const char *f, char *t) { | |
9e2f7c11 LP |
280 | assert(f); |
281 | assert(t); | |
282 | ||
4b712653 KS |
283 | /* do not create units with a leading '.', like for "/.dotdir" mount points */ |
284 | if (*f == '.') { | |
285 | t = do_escape_char(*f, t); | |
286 | f++; | |
287 | } | |
288 | ||
9e2f7c11 LP |
289 | for (; *f; f++) { |
290 | if (*f == '/') | |
8d567588 | 291 | *(t++) = '-'; |
4b712653 KS |
292 | else if (*f == '-' || *f == '\\' || !strchr(VALID_CHARS, *f)) |
293 | t = do_escape_char(*f, t); | |
294 | else | |
9e2f7c11 LP |
295 | *(t++) = *f; |
296 | } | |
297 | ||
298 | return t; | |
299 | } | |
300 | ||
9e2f7c11 LP |
301 | char *unit_name_escape(const char *f) { |
302 | char *r, *t; | |
303 | ||
b9a33026 LP |
304 | assert(f); |
305 | ||
b0193f1c LP |
306 | r = new(char, strlen(f)*4+1); |
307 | if (!r) | |
9e2f7c11 LP |
308 | return NULL; |
309 | ||
310 | t = do_escape(f, r); | |
311 | *t = 0; | |
312 | ||
313 | return r; | |
9e2f7c11 LP |
314 | } |
315 | ||
7410616c LP |
316 | int unit_name_unescape(const char *f, char **ret) { |
317 | _cleanup_free_ char *r = NULL; | |
318 | char *t; | |
9e2f7c11 LP |
319 | |
320 | assert(f); | |
321 | ||
b0193f1c LP |
322 | r = strdup(f); |
323 | if (!r) | |
7410616c | 324 | return -ENOMEM; |
9e2f7c11 LP |
325 | |
326 | for (t = r; *f; f++) { | |
8d567588 | 327 | if (*f == '-') |
9e2f7c11 LP |
328 | *(t++) = '/'; |
329 | else if (*f == '\\') { | |
330 | int a, b; | |
331 | ||
7410616c LP |
332 | if (f[1] != 'x') |
333 | return -EINVAL; | |
334 | ||
335 | a = unhexchar(f[2]); | |
336 | if (a < 0) | |
337 | return -EINVAL; | |
338 | ||
339 | b = unhexchar(f[3]); | |
340 | if (b < 0) | |
341 | return -EINVAL; | |
342 | ||
93c47472 | 343 | *(t++) = (char) (((uint8_t) a << 4U) | (uint8_t) b); |
7410616c | 344 | f += 3; |
9e2f7c11 LP |
345 | } else |
346 | *(t++) = *f; | |
347 | } | |
348 | ||
349 | *t = 0; | |
350 | ||
7410616c LP |
351 | *ret = r; |
352 | r = NULL; | |
353 | ||
354 | return 0; | |
9e2f7c11 LP |
355 | } |
356 | ||
7410616c LP |
357 | int unit_name_path_escape(const char *f, char **ret) { |
358 | char *p, *s; | |
35eb6b12 LP |
359 | |
360 | assert(f); | |
7410616c | 361 | assert(ret); |
35eb6b12 | 362 | |
7410616c | 363 | p = strdupa(f); |
35eb6b12 | 364 | if (!p) |
7410616c | 365 | return -ENOMEM; |
35eb6b12 LP |
366 | |
367 | path_kill_slashes(p); | |
368 | ||
b9a33026 | 369 | if (STR_IN_SET(p, "/", "")) |
7410616c LP |
370 | s = strdup("-"); |
371 | else { | |
372 | char *e; | |
35eb6b12 | 373 | |
7410616c LP |
374 | if (!path_is_safe(p)) |
375 | return -EINVAL; | |
35eb6b12 | 376 | |
7410616c LP |
377 | /* Truncate trailing slashes */ |
378 | e = endswith(p, "/"); | |
379 | if (e) | |
380 | *e = 0; | |
35eb6b12 | 381 | |
7410616c LP |
382 | /* Truncate leading slashes */ |
383 | if (p[0] == '/') | |
384 | p++; | |
35eb6b12 | 385 | |
7410616c | 386 | s = unit_name_escape(p); |
35eb6b12 | 387 | } |
7410616c LP |
388 | if (!s) |
389 | return -ENOMEM; | |
35eb6b12 | 390 | |
7410616c LP |
391 | *ret = s; |
392 | return 0; | |
35eb6b12 LP |
393 | } |
394 | ||
7410616c | 395 | int unit_name_path_unescape(const char *f, char **ret) { |
93c47472 | 396 | char *s; |
7410616c | 397 | int r; |
9e2f7c11 | 398 | |
7410616c | 399 | assert(f); |
9e2f7c11 | 400 | |
93c47472 LP |
401 | if (isempty(f)) |
402 | return -EINVAL; | |
403 | ||
7410616c LP |
404 | if (streq(f, "-")) { |
405 | s = strdup("/"); | |
406 | if (!s) | |
407 | return -ENOMEM; | |
93c47472 LP |
408 | } else { |
409 | char *w; | |
6ef9eeed | 410 | |
93c47472 LP |
411 | r = unit_name_unescape(f, &w); |
412 | if (r < 0) | |
413 | return r; | |
29283ea4 | 414 | |
93c47472 LP |
415 | /* Don't accept trailing or leading slashes */ |
416 | if (startswith(w, "/") || endswith(w, "/")) { | |
417 | free(w); | |
418 | return -EINVAL; | |
419 | } | |
29283ea4 | 420 | |
93c47472 LP |
421 | /* Prefix a slash again */ |
422 | s = strappend("/", w); | |
7410616c | 423 | free(w); |
93c47472 LP |
424 | if (!s) |
425 | return -ENOMEM; | |
426 | ||
427 | if (!path_is_safe(s)) { | |
428 | free(s); | |
429 | return -EINVAL; | |
430 | } | |
7410616c | 431 | } |
6ef9eeed | 432 | |
93c47472 LP |
433 | if (ret) |
434 | *ret = s; | |
435 | else | |
436 | free(s); | |
437 | ||
7410616c | 438 | return 0; |
29283ea4 MS |
439 | } |
440 | ||
7410616c | 441 | int unit_name_replace_instance(const char *f, const char *i, char **ret) { |
9e2f7c11 | 442 | const char *p, *e; |
7410616c | 443 | char *s; |
8556879e | 444 | size_t a, b; |
9e2f7c11 LP |
445 | |
446 | assert(f); | |
b9a33026 | 447 | assert(i); |
7410616c | 448 | assert(ret); |
9e2f7c11 | 449 | |
7410616c LP |
450 | if (!unit_name_is_valid(f, UNIT_NAME_INSTANCE|UNIT_NAME_TEMPLATE)) |
451 | return -EINVAL; | |
452 | if (!unit_instance_is_valid(i)) | |
453 | return -EINVAL; | |
9e2f7c11 | 454 | |
7410616c LP |
455 | assert_se(p = strchr(f, '@')); |
456 | assert_se(e = strrchr(f, '.')); | |
9e2f7c11 | 457 | |
8556879e LP |
458 | a = p - f; |
459 | b = strlen(i); | |
9e2f7c11 | 460 | |
7410616c LP |
461 | s = new(char, a + 1 + b + strlen(e) + 1); |
462 | if (!s) | |
463 | return -ENOMEM; | |
9e2f7c11 | 464 | |
7410616c LP |
465 | strcpy(mempcpy(mempcpy(s, f, a + 1), i, b), e); |
466 | ||
467 | *ret = s; | |
468 | return 0; | |
9e2f7c11 LP |
469 | } |
470 | ||
7410616c | 471 | int unit_name_template(const char *f, char **ret) { |
9e2f7c11 | 472 | const char *p, *e; |
7410616c | 473 | char *s; |
9e2f7c11 LP |
474 | size_t a; |
475 | ||
b9a33026 | 476 | assert(f); |
7410616c | 477 | assert(ret); |
b9a33026 | 478 | |
7410616c LP |
479 | if (!unit_name_is_valid(f, UNIT_NAME_INSTANCE|UNIT_NAME_TEMPLATE)) |
480 | return -EINVAL; | |
9e2f7c11 | 481 | |
7410616c LP |
482 | assert_se(p = strchr(f, '@')); |
483 | assert_se(e = strrchr(f, '.')); | |
b9a33026 LP |
484 | |
485 | a = p - f; | |
9e2f7c11 | 486 | |
7410616c LP |
487 | s = new(char, a + 1 + strlen(e) + 1); |
488 | if (!s) | |
489 | return -ENOMEM; | |
9e2f7c11 | 490 | |
7410616c LP |
491 | strcpy(mempcpy(s, f, a + 1), e); |
492 | ||
493 | *ret = s; | |
494 | return 0; | |
9e2f7c11 | 495 | } |
a16e1123 | 496 | |
7410616c | 497 | int unit_name_from_path(const char *path, const char *suffix, char **ret) { |
58d08142 | 498 | _cleanup_free_ char *p = NULL; |
7410616c LP |
499 | char *s = NULL; |
500 | int r; | |
5ffceb2f | 501 | |
a16e1123 LP |
502 | assert(path); |
503 | assert(suffix); | |
7410616c | 504 | assert(ret); |
a16e1123 | 505 | |
7410616c LP |
506 | if (!unit_suffix_is_valid(suffix)) |
507 | return -EINVAL; | |
5ffceb2f | 508 | |
7410616c LP |
509 | r = unit_name_path_escape(path, &p); |
510 | if (r < 0) | |
511 | return r; | |
512 | ||
513 | s = strappend(p, suffix); | |
514 | if (!s) | |
515 | return -ENOMEM; | |
516 | ||
517 | *ret = s; | |
518 | return 0; | |
a16e1123 LP |
519 | } |
520 | ||
7410616c | 521 | int unit_name_from_path_instance(const char *prefix, const char *path, const char *suffix, char **ret) { |
58d08142 | 522 | _cleanup_free_ char *p = NULL; |
7410616c LP |
523 | char *s; |
524 | int r; | |
9fff8a1f | 525 | |
35eb6b12 | 526 | assert(prefix); |
9fff8a1f LP |
527 | assert(path); |
528 | assert(suffix); | |
7410616c | 529 | assert(ret); |
9fff8a1f | 530 | |
7410616c LP |
531 | if (!unit_prefix_is_valid(prefix)) |
532 | return -EINVAL; | |
533 | ||
534 | if (!unit_suffix_is_valid(suffix)) | |
535 | return -EINVAL; | |
536 | ||
537 | r = unit_name_path_escape(path, &p); | |
538 | if (r < 0) | |
539 | return r; | |
540 | ||
541 | s = strjoin(prefix, "@", p, suffix, NULL); | |
542 | if (!s) | |
543 | return -ENOMEM; | |
9fff8a1f | 544 | |
7410616c LP |
545 | *ret = s; |
546 | return 0; | |
9fff8a1f LP |
547 | } |
548 | ||
7410616c LP |
549 | int unit_name_to_path(const char *name, char **ret) { |
550 | _cleanup_free_ char *prefix = NULL; | |
551 | int r; | |
a16e1123 LP |
552 | |
553 | assert(name); | |
554 | ||
7410616c LP |
555 | r = unit_name_to_prefix(name, &prefix); |
556 | if (r < 0) | |
557 | return r; | |
a16e1123 | 558 | |
7410616c | 559 | return unit_name_path_unescape(prefix, ret); |
9fc50704 | 560 | } |
48899192 MS |
561 | |
562 | char *unit_dbus_path_from_name(const char *name) { | |
9444b1f2 | 563 | _cleanup_free_ char *e = NULL; |
48899192 | 564 | |
35eb6b12 LP |
565 | assert(name); |
566 | ||
f01de965 | 567 | e = bus_label_escape(name); |
48899192 MS |
568 | if (!e) |
569 | return NULL; | |
570 | ||
9444b1f2 | 571 | return strappend("/org/freedesktop/systemd1/unit/", e); |
48899192 | 572 | } |
b0193f1c | 573 | |
ede3a796 LP |
574 | int unit_name_from_dbus_path(const char *path, char **name) { |
575 | const char *e; | |
576 | char *n; | |
577 | ||
578 | e = startswith(path, "/org/freedesktop/systemd1/unit/"); | |
579 | if (!e) | |
580 | return -EINVAL; | |
581 | ||
f01de965 | 582 | n = bus_label_unescape(e); |
ede3a796 LP |
583 | if (!n) |
584 | return -ENOMEM; | |
585 | ||
586 | *name = n; | |
587 | return 0; | |
588 | } | |
589 | ||
21b735e7 LP |
590 | const char* unit_dbus_interface_from_type(UnitType t) { |
591 | ||
592 | static const char *const table[_UNIT_TYPE_MAX] = { | |
593 | [UNIT_SERVICE] = "org.freedesktop.systemd1.Service", | |
594 | [UNIT_SOCKET] = "org.freedesktop.systemd1.Socket", | |
595 | [UNIT_BUSNAME] = "org.freedesktop.systemd1.BusName", | |
596 | [UNIT_TARGET] = "org.freedesktop.systemd1.Target", | |
597 | [UNIT_SNAPSHOT] = "org.freedesktop.systemd1.Snapshot", | |
598 | [UNIT_DEVICE] = "org.freedesktop.systemd1.Device", | |
599 | [UNIT_MOUNT] = "org.freedesktop.systemd1.Mount", | |
600 | [UNIT_AUTOMOUNT] = "org.freedesktop.systemd1.Automount", | |
601 | [UNIT_SWAP] = "org.freedesktop.systemd1.Swap", | |
602 | [UNIT_TIMER] = "org.freedesktop.systemd1.Timer", | |
603 | [UNIT_PATH] = "org.freedesktop.systemd1.Path", | |
604 | [UNIT_SLICE] = "org.freedesktop.systemd1.Slice", | |
605 | [UNIT_SCOPE] = "org.freedesktop.systemd1.Scope", | |
606 | }; | |
607 | ||
608 | if (t < 0) | |
609 | return NULL; | |
610 | if (t >= _UNIT_TYPE_MAX) | |
611 | return NULL; | |
612 | ||
613 | return table[t]; | |
614 | } | |
615 | ||
616 | const char *unit_dbus_interface_from_name(const char *name) { | |
617 | UnitType t; | |
618 | ||
619 | t = unit_name_to_type(name); | |
620 | if (t < 0) | |
621 | return NULL; | |
622 | ||
623 | return unit_dbus_interface_from_type(t); | |
624 | } | |
625 | ||
7410616c LP |
626 | static char *do_escape_mangle(const char *f, UnitNameMangle allow_globs, char *t) { |
627 | const char *valid_chars; | |
628 | ||
629 | assert(f); | |
630 | assert(IN_SET(allow_globs, UNIT_NAME_GLOB, UNIT_NAME_NOGLOB)); | |
631 | assert(t); | |
632 | ||
633 | /* We'll only escape the obvious characters here, to play | |
634 | * safe. */ | |
635 | ||
636 | valid_chars = allow_globs == UNIT_NAME_GLOB ? "@" VALID_CHARS "[]!-*?" : "@" VALID_CHARS; | |
637 | ||
638 | for (; *f; f++) { | |
639 | if (*f == '/') | |
640 | *(t++) = '-'; | |
641 | else if (!strchr(valid_chars, *f)) | |
642 | t = do_escape_char(*f, t); | |
643 | else | |
644 | *(t++) = *f; | |
645 | } | |
646 | ||
647 | return t; | |
648 | } | |
649 | ||
e3e0314b | 650 | /** |
5e03c6e3 ZJS |
651 | * Convert a string to a unit name. /dev/blah is converted to dev-blah.device, |
652 | * /blah/blah is converted to blah-blah.mount, anything else is left alone, | |
653 | * except that @suffix is appended if a valid unit suffix is not present. | |
654 | * | |
655 | * If @allow_globs, globs characters are preserved. Otherwise they are escaped. | |
e3e0314b | 656 | */ |
7410616c LP |
657 | int unit_name_mangle_with_suffix(const char *name, UnitNameMangle allow_globs, const char *suffix, char **ret) { |
658 | char *s, *t; | |
659 | int r; | |
b0193f1c LP |
660 | |
661 | assert(name); | |
5e03c6e3 | 662 | assert(suffix); |
7410616c | 663 | assert(ret); |
b0193f1c | 664 | |
7410616c LP |
665 | if (isempty(name)) /* We cannot mangle empty unit names to become valid, sorry. */ |
666 | return -EINVAL; | |
b0193f1c | 667 | |
7410616c LP |
668 | if (!unit_suffix_is_valid(suffix)) |
669 | return -EINVAL; | |
b0193f1c | 670 | |
7410616c LP |
671 | if (unit_name_is_valid(name, UNIT_NAME_ANY)) { |
672 | /* No mangling necessary... */ | |
673 | s = strdup(name); | |
674 | if (!s) | |
675 | return -ENOMEM; | |
1dcf6065 | 676 | |
7410616c LP |
677 | *ret = s; |
678 | return 0; | |
679 | } | |
1dcf6065 | 680 | |
7410616c LP |
681 | if (is_device_path(name)) { |
682 | r = unit_name_from_path(name, ".device", ret); | |
683 | if (r >= 0) | |
684 | return 1; | |
685 | if (r != -EINVAL) | |
686 | return r; | |
687 | } | |
1dcf6065 | 688 | |
7410616c LP |
689 | if (path_is_absolute(name)) { |
690 | r = unit_name_from_path(name, ".mount", ret); | |
691 | if (r >= 0) | |
692 | return 1; | |
693 | if (r != -EINVAL) | |
694 | return r; | |
695 | } | |
1dcf6065 | 696 | |
7410616c LP |
697 | s = new(char, strlen(name) * 4 + strlen(suffix) + 1); |
698 | if (!s) | |
699 | return -ENOMEM; | |
5f739699 | 700 | |
7410616c LP |
701 | t = do_escape_mangle(name, allow_globs, s); |
702 | *t = 0; | |
5f739699 | 703 | |
7410616c LP |
704 | if (unit_name_to_type(s) < 0) |
705 | strcpy(t, suffix); | |
5f739699 | 706 | |
7410616c LP |
707 | *ret = s; |
708 | return 1; | |
5f739699 | 709 | } |
fb6becb4 | 710 | |
93c47472 LP |
711 | int slice_build_parent_slice(const char *slice, char **ret) { |
712 | char *s, *dash; | |
2fc09a9c | 713 | int r; |
93c47472 LP |
714 | |
715 | assert(slice); | |
716 | assert(ret); | |
717 | ||
718 | if (!slice_name_is_valid(slice)) | |
719 | return -EINVAL; | |
720 | ||
721 | if (streq(slice, "-.slice")) { | |
722 | *ret = NULL; | |
723 | return 0; | |
724 | } | |
725 | ||
726 | s = strdup(slice); | |
727 | if (!s) | |
728 | return -ENOMEM; | |
729 | ||
730 | dash = strrchr(s, '-'); | |
731 | if (dash) | |
732 | strcpy(dash, ".slice"); | |
733 | else { | |
2fc09a9c | 734 | r = free_and_strdup(&s, "-.slice"); |
8e542fcd DM |
735 | if (r < 0) { |
736 | free(s); | |
2fc09a9c | 737 | return r; |
8e542fcd | 738 | } |
93c47472 LP |
739 | } |
740 | ||
741 | *ret = s; | |
742 | return 1; | |
743 | } | |
744 | ||
7410616c LP |
745 | int slice_build_subslice(const char *slice, const char*name, char **ret) { |
746 | char *subslice; | |
fb6becb4 LP |
747 | |
748 | assert(slice); | |
749 | assert(name); | |
7410616c LP |
750 | assert(ret); |
751 | ||
93c47472 | 752 | if (!slice_name_is_valid(slice)) |
7410616c LP |
753 | return -EINVAL; |
754 | ||
755 | if (!unit_prefix_is_valid(name)) | |
756 | return -EINVAL; | |
fb6becb4 LP |
757 | |
758 | if (streq(slice, "-.slice")) | |
7410616c | 759 | subslice = strappend(name, ".slice"); |
fb6becb4 LP |
760 | else { |
761 | char *e; | |
762 | ||
93c47472 | 763 | assert_se(e = endswith(slice, ".slice")); |
fb6becb4 | 764 | |
7410616c LP |
765 | subslice = new(char, (e - slice) + 1 + strlen(name) + 6 + 1); |
766 | if (!subslice) | |
fb6becb4 LP |
767 | return -ENOMEM; |
768 | ||
7410616c | 769 | stpcpy(stpcpy(stpcpy(mempcpy(subslice, slice, e - slice), "-"), name), ".slice"); |
fb6becb4 LP |
770 | } |
771 | ||
7410616c | 772 | *ret = subslice; |
fb6becb4 LP |
773 | return 0; |
774 | } | |
cb87a73b | 775 | |
93c47472 LP |
776 | bool slice_name_is_valid(const char *name) { |
777 | const char *p, *e; | |
778 | bool dash = false; | |
779 | ||
780 | if (!unit_name_is_valid(name, UNIT_NAME_PLAIN)) | |
781 | return false; | |
782 | ||
783 | if (streq(name, "-.slice")) | |
784 | return true; | |
785 | ||
786 | e = endswith(name, ".slice"); | |
787 | if (!e) | |
788 | return false; | |
789 | ||
790 | for (p = name; p < e; p++) { | |
791 | ||
792 | if (*p == '-') { | |
793 | ||
794 | /* Don't allow initial dash */ | |
795 | if (p == name) | |
796 | return false; | |
797 | ||
798 | /* Don't allow multiple dashes */ | |
799 | if (dash) | |
800 | return false; | |
801 | ||
802 | dash = true; | |
803 | } else | |
804 | dash = false; | |
805 | } | |
806 | ||
807 | /* Don't allow trailing hash */ | |
808 | if (dash) | |
809 | return false; | |
810 | ||
811 | return true; | |
812 | } | |
813 | ||
7410616c LP |
814 | static const char* const unit_type_table[_UNIT_TYPE_MAX] = { |
815 | [UNIT_SERVICE] = "service", | |
816 | [UNIT_SOCKET] = "socket", | |
817 | [UNIT_BUSNAME] = "busname", | |
818 | [UNIT_TARGET] = "target", | |
819 | [UNIT_SNAPSHOT] = "snapshot", | |
820 | [UNIT_DEVICE] = "device", | |
821 | [UNIT_MOUNT] = "mount", | |
822 | [UNIT_AUTOMOUNT] = "automount", | |
823 | [UNIT_SWAP] = "swap", | |
824 | [UNIT_TIMER] = "timer", | |
825 | [UNIT_PATH] = "path", | |
826 | [UNIT_SLICE] = "slice", | |
21b735e7 | 827 | [UNIT_SCOPE] = "scope", |
7410616c LP |
828 | }; |
829 | ||
830 | DEFINE_STRING_TABLE_LOOKUP(unit_type, UnitType); | |
831 | ||
832 | static const char* const unit_load_state_table[_UNIT_LOAD_STATE_MAX] = { | |
833 | [UNIT_STUB] = "stub", | |
834 | [UNIT_LOADED] = "loaded", | |
835 | [UNIT_NOT_FOUND] = "not-found", | |
836 | [UNIT_ERROR] = "error", | |
837 | [UNIT_MERGED] = "merged", | |
838 | [UNIT_MASKED] = "masked" | |
839 | }; | |
840 | ||
841 | DEFINE_STRING_TABLE_LOOKUP(unit_load_state, UnitLoadState); | |
842 | ||
978c8b63 ZJS |
843 | static const char* const unit_active_state_table[_UNIT_ACTIVE_STATE_MAX] = { |
844 | [UNIT_ACTIVE] = "active", | |
845 | [UNIT_RELOADING] = "reloading", | |
846 | [UNIT_INACTIVE] = "inactive", | |
847 | [UNIT_FAILED] = "failed", | |
848 | [UNIT_ACTIVATING] = "activating", | |
849 | [UNIT_DEACTIVATING] = "deactivating" | |
850 | }; | |
851 | ||
852 | DEFINE_STRING_TABLE_LOOKUP(unit_active_state, UnitActiveState); | |
853 | ||
7e55de3b ZJS |
854 | static const char* const automount_state_table[_AUTOMOUNT_STATE_MAX] = { |
855 | [AUTOMOUNT_DEAD] = "dead", | |
856 | [AUTOMOUNT_WAITING] = "waiting", | |
857 | [AUTOMOUNT_RUNNING] = "running", | |
858 | [AUTOMOUNT_FAILED] = "failed" | |
859 | }; | |
860 | ||
861 | DEFINE_STRING_TABLE_LOOKUP(automount_state, AutomountState); | |
862 | ||
863 | static const char* const busname_state_table[_BUSNAME_STATE_MAX] = { | |
864 | [BUSNAME_DEAD] = "dead", | |
865 | [BUSNAME_MAKING] = "making", | |
866 | [BUSNAME_REGISTERED] = "registered", | |
867 | [BUSNAME_LISTENING] = "listening", | |
868 | [BUSNAME_RUNNING] = "running", | |
869 | [BUSNAME_SIGTERM] = "sigterm", | |
870 | [BUSNAME_SIGKILL] = "sigkill", | |
871 | [BUSNAME_FAILED] = "failed", | |
872 | }; | |
873 | ||
874 | DEFINE_STRING_TABLE_LOOKUP(busname_state, BusNameState); | |
875 | ||
876 | static const char* const device_state_table[_DEVICE_STATE_MAX] = { | |
877 | [DEVICE_DEAD] = "dead", | |
878 | [DEVICE_TENTATIVE] = "tentative", | |
879 | [DEVICE_PLUGGED] = "plugged", | |
880 | }; | |
881 | ||
882 | DEFINE_STRING_TABLE_LOOKUP(device_state, DeviceState); | |
883 | ||
884 | static const char* const mount_state_table[_MOUNT_STATE_MAX] = { | |
885 | [MOUNT_DEAD] = "dead", | |
886 | [MOUNT_MOUNTING] = "mounting", | |
887 | [MOUNT_MOUNTING_DONE] = "mounting-done", | |
888 | [MOUNT_MOUNTED] = "mounted", | |
889 | [MOUNT_REMOUNTING] = "remounting", | |
890 | [MOUNT_UNMOUNTING] = "unmounting", | |
891 | [MOUNT_MOUNTING_SIGTERM] = "mounting-sigterm", | |
892 | [MOUNT_MOUNTING_SIGKILL] = "mounting-sigkill", | |
893 | [MOUNT_REMOUNTING_SIGTERM] = "remounting-sigterm", | |
894 | [MOUNT_REMOUNTING_SIGKILL] = "remounting-sigkill", | |
895 | [MOUNT_UNMOUNTING_SIGTERM] = "unmounting-sigterm", | |
896 | [MOUNT_UNMOUNTING_SIGKILL] = "unmounting-sigkill", | |
897 | [MOUNT_FAILED] = "failed" | |
898 | }; | |
899 | ||
900 | DEFINE_STRING_TABLE_LOOKUP(mount_state, MountState); | |
901 | ||
902 | static const char* const path_state_table[_PATH_STATE_MAX] = { | |
903 | [PATH_DEAD] = "dead", | |
904 | [PATH_WAITING] = "waiting", | |
905 | [PATH_RUNNING] = "running", | |
906 | [PATH_FAILED] = "failed" | |
907 | }; | |
908 | ||
909 | DEFINE_STRING_TABLE_LOOKUP(path_state, PathState); | |
910 | ||
911 | static const char* const scope_state_table[_SCOPE_STATE_MAX] = { | |
912 | [SCOPE_DEAD] = "dead", | |
913 | [SCOPE_RUNNING] = "running", | |
914 | [SCOPE_ABANDONED] = "abandoned", | |
915 | [SCOPE_STOP_SIGTERM] = "stop-sigterm", | |
916 | [SCOPE_STOP_SIGKILL] = "stop-sigkill", | |
917 | [SCOPE_FAILED] = "failed", | |
918 | }; | |
919 | ||
920 | DEFINE_STRING_TABLE_LOOKUP(scope_state, ScopeState); | |
921 | ||
922 | static const char* const service_state_table[_SERVICE_STATE_MAX] = { | |
923 | [SERVICE_DEAD] = "dead", | |
924 | [SERVICE_START_PRE] = "start-pre", | |
925 | [SERVICE_START] = "start", | |
926 | [SERVICE_START_POST] = "start-post", | |
927 | [SERVICE_RUNNING] = "running", | |
928 | [SERVICE_EXITED] = "exited", | |
929 | [SERVICE_RELOAD] = "reload", | |
930 | [SERVICE_STOP] = "stop", | |
931 | [SERVICE_STOP_SIGABRT] = "stop-sigabrt", | |
932 | [SERVICE_STOP_SIGTERM] = "stop-sigterm", | |
933 | [SERVICE_STOP_SIGKILL] = "stop-sigkill", | |
934 | [SERVICE_STOP_POST] = "stop-post", | |
935 | [SERVICE_FINAL_SIGTERM] = "final-sigterm", | |
936 | [SERVICE_FINAL_SIGKILL] = "final-sigkill", | |
937 | [SERVICE_FAILED] = "failed", | |
938 | [SERVICE_AUTO_RESTART] = "auto-restart", | |
939 | }; | |
940 | ||
941 | DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState); | |
942 | ||
943 | static const char* const slice_state_table[_SLICE_STATE_MAX] = { | |
944 | [SLICE_DEAD] = "dead", | |
945 | [SLICE_ACTIVE] = "active" | |
946 | }; | |
947 | ||
948 | DEFINE_STRING_TABLE_LOOKUP(slice_state, SliceState); | |
949 | ||
950 | static const char* const snapshot_state_table[_SNAPSHOT_STATE_MAX] = { | |
951 | [SNAPSHOT_DEAD] = "dead", | |
952 | [SNAPSHOT_ACTIVE] = "active" | |
953 | }; | |
954 | ||
955 | DEFINE_STRING_TABLE_LOOKUP(snapshot_state, SnapshotState); | |
956 | ||
957 | static const char* const socket_state_table[_SOCKET_STATE_MAX] = { | |
958 | [SOCKET_DEAD] = "dead", | |
959 | [SOCKET_START_PRE] = "start-pre", | |
960 | [SOCKET_START_CHOWN] = "start-chown", | |
961 | [SOCKET_START_POST] = "start-post", | |
962 | [SOCKET_LISTENING] = "listening", | |
963 | [SOCKET_RUNNING] = "running", | |
964 | [SOCKET_STOP_PRE] = "stop-pre", | |
965 | [SOCKET_STOP_PRE_SIGTERM] = "stop-pre-sigterm", | |
966 | [SOCKET_STOP_PRE_SIGKILL] = "stop-pre-sigkill", | |
967 | [SOCKET_STOP_POST] = "stop-post", | |
968 | [SOCKET_FINAL_SIGTERM] = "final-sigterm", | |
969 | [SOCKET_FINAL_SIGKILL] = "final-sigkill", | |
970 | [SOCKET_FAILED] = "failed" | |
971 | }; | |
972 | ||
973 | DEFINE_STRING_TABLE_LOOKUP(socket_state, SocketState); | |
974 | ||
975 | static const char* const swap_state_table[_SWAP_STATE_MAX] = { | |
976 | [SWAP_DEAD] = "dead", | |
977 | [SWAP_ACTIVATING] = "activating", | |
978 | [SWAP_ACTIVATING_DONE] = "activating-done", | |
979 | [SWAP_ACTIVE] = "active", | |
980 | [SWAP_DEACTIVATING] = "deactivating", | |
981 | [SWAP_ACTIVATING_SIGTERM] = "activating-sigterm", | |
982 | [SWAP_ACTIVATING_SIGKILL] = "activating-sigkill", | |
983 | [SWAP_DEACTIVATING_SIGTERM] = "deactivating-sigterm", | |
984 | [SWAP_DEACTIVATING_SIGKILL] = "deactivating-sigkill", | |
985 | [SWAP_FAILED] = "failed" | |
986 | }; | |
987 | ||
988 | DEFINE_STRING_TABLE_LOOKUP(swap_state, SwapState); | |
989 | ||
990 | static const char* const target_state_table[_TARGET_STATE_MAX] = { | |
991 | [TARGET_DEAD] = "dead", | |
992 | [TARGET_ACTIVE] = "active" | |
993 | }; | |
994 | ||
995 | DEFINE_STRING_TABLE_LOOKUP(target_state, TargetState); | |
996 | ||
997 | static const char* const timer_state_table[_TIMER_STATE_MAX] = { | |
998 | [TIMER_DEAD] = "dead", | |
999 | [TIMER_WAITING] = "waiting", | |
1000 | [TIMER_RUNNING] = "running", | |
1001 | [TIMER_ELAPSED] = "elapsed", | |
1002 | [TIMER_FAILED] = "failed" | |
1003 | }; | |
1004 | ||
1005 | DEFINE_STRING_TABLE_LOOKUP(timer_state, TimerState); | |
1006 | ||
cb87a73b LN |
1007 | static const char* const unit_dependency_table[_UNIT_DEPENDENCY_MAX] = { |
1008 | [UNIT_REQUIRES] = "Requires", | |
1009 | [UNIT_REQUIRES_OVERRIDABLE] = "RequiresOverridable", | |
1010 | [UNIT_REQUISITE] = "Requisite", | |
1011 | [UNIT_REQUISITE_OVERRIDABLE] = "RequisiteOverridable", | |
1012 | [UNIT_WANTS] = "Wants", | |
1013 | [UNIT_BINDS_TO] = "BindsTo", | |
1014 | [UNIT_PART_OF] = "PartOf", | |
1015 | [UNIT_REQUIRED_BY] = "RequiredBy", | |
1016 | [UNIT_REQUIRED_BY_OVERRIDABLE] = "RequiredByOverridable", | |
be7d9ff7 LP |
1017 | [UNIT_REQUISITE_OF] = "RequisiteOf", |
1018 | [UNIT_REQUISITE_OF_OVERRIDABLE] = "RequisiteOfOverridable", | |
cb87a73b LN |
1019 | [UNIT_WANTED_BY] = "WantedBy", |
1020 | [UNIT_BOUND_BY] = "BoundBy", | |
1021 | [UNIT_CONSISTS_OF] = "ConsistsOf", | |
1022 | [UNIT_CONFLICTS] = "Conflicts", | |
1023 | [UNIT_CONFLICTED_BY] = "ConflictedBy", | |
1024 | [UNIT_BEFORE] = "Before", | |
1025 | [UNIT_AFTER] = "After", | |
1026 | [UNIT_ON_FAILURE] = "OnFailure", | |
1027 | [UNIT_TRIGGERS] = "Triggers", | |
1028 | [UNIT_TRIGGERED_BY] = "TriggeredBy", | |
1029 | [UNIT_PROPAGATES_RELOAD_TO] = "PropagatesReloadTo", | |
1030 | [UNIT_RELOAD_PROPAGATED_FROM] = "ReloadPropagatedFrom", | |
1031 | [UNIT_JOINS_NAMESPACE_OF] = "JoinsNamespaceOf", | |
1032 | [UNIT_REFERENCES] = "References", | |
1033 | [UNIT_REFERENCED_BY] = "ReferencedBy", | |
1034 | }; | |
1035 | ||
1036 | DEFINE_STRING_TABLE_LOOKUP(unit_dependency, UnitDependency); |