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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 | ||
b5efdb8a | 25 | #include "alloc-util.h" |
f01de965 | 26 | #include "bus-label.h" |
4b549144 | 27 | #include "def.h" |
8b43440b | 28 | #include "hexdecoct.h" |
07630cea | 29 | #include "path-util.h" |
8b43440b | 30 | #include "string-table.h" |
07630cea | 31 | #include "string-util.h" |
b9a33026 | 32 | #include "strv.h" |
07630cea | 33 | #include "unit-name.h" |
8b43440b | 34 | #include "util.h" |
9e2f7c11 LP |
35 | |
36 | #define VALID_CHARS \ | |
4b549144 | 37 | DIGITS LETTERS \ |
4f2d528d | 38 | ":-_.\\" |
9e2f7c11 | 39 | |
7410616c | 40 | bool unit_name_is_valid(const char *n, UnitNameFlags flags) { |
9e2f7c11 LP |
41 | const char *e, *i, *at; |
42 | ||
7410616c | 43 | assert((flags & ~(UNIT_NAME_PLAIN|UNIT_NAME_INSTANCE|UNIT_NAME_TEMPLATE)) == 0); |
9e2f7c11 | 44 | |
7410616c LP |
45 | if (_unlikely_(flags == 0)) |
46 | return false; | |
9e2f7c11 | 47 | |
b9a33026 LP |
48 | if (isempty(n)) |
49 | return false; | |
50 | ||
9e2f7c11 LP |
51 | if (strlen(n) >= UNIT_NAME_MAX) |
52 | return false; | |
53 | ||
71fad675 LP |
54 | e = strrchr(n, '.'); |
55 | if (!e || e == n) | |
9e2f7c11 LP |
56 | return false; |
57 | ||
5f739699 LP |
58 | if (unit_type_from_string(e + 1) < 0) |
59 | return false; | |
60 | ||
9e2f7c11 LP |
61 | for (i = n, at = NULL; i < e; i++) { |
62 | ||
63 | if (*i == '@' && !at) | |
64 | at = i; | |
65 | ||
66 | if (!strchr("@" VALID_CHARS, *i)) | |
67 | return false; | |
68 | } | |
69 | ||
7410616c LP |
70 | if (at == n) |
71 | return false; | |
9e2f7c11 | 72 | |
7410616c LP |
73 | if (flags & UNIT_NAME_PLAIN) |
74 | if (!at) | |
75 | return true; | |
9e2f7c11 | 76 | |
7410616c LP |
77 | if (flags & UNIT_NAME_INSTANCE) |
78 | if (at && e > at + 1) | |
79 | return true; | |
80 | ||
81 | if (flags & UNIT_NAME_TEMPLATE) | |
82 | if (at && e == at + 1) | |
83 | return true; | |
84 | ||
85 | return false; | |
86 | } | |
87 | ||
88 | bool unit_prefix_is_valid(const char *p) { | |
89 | ||
90 | /* We don't allow additional @ in the prefix string */ | |
91 | ||
92 | if (isempty(p)) | |
93 | return false; | |
94 | ||
95 | return in_charset(p, VALID_CHARS); | |
9e2f7c11 LP |
96 | } |
97 | ||
98 | bool unit_instance_is_valid(const char *i) { | |
9e2f7c11 LP |
99 | |
100 | /* The max length depends on the length of the string, so we | |
101 | * don't really check this here. */ | |
102 | ||
b9a33026 | 103 | if (isempty(i)) |
9e2f7c11 LP |
104 | return false; |
105 | ||
106 | /* We allow additional @ in the instance string, we do not | |
107 | * allow them in the prefix! */ | |
108 | ||
b9a33026 | 109 | return in_charset(i, "@" VALID_CHARS); |
9e2f7c11 LP |
110 | } |
111 | ||
7410616c LP |
112 | bool unit_suffix_is_valid(const char *s) { |
113 | if (isempty(s)) | |
114 | return false; | |
9e2f7c11 | 115 | |
7410616c LP |
116 | if (s[0] != '.') |
117 | return false; | |
9e2f7c11 | 118 | |
7410616c | 119 | if (unit_type_from_string(s + 1) < 0) |
9e2f7c11 LP |
120 | return false; |
121 | ||
7410616c LP |
122 | return true; |
123 | } | |
124 | ||
125 | int unit_name_to_prefix(const char *n, char **ret) { | |
126 | const char *p; | |
127 | char *s; | |
128 | ||
129 | assert(n); | |
130 | assert(ret); | |
131 | ||
132 | if (!unit_name_is_valid(n, UNIT_NAME_ANY)) | |
133 | return -EINVAL; | |
134 | ||
135 | p = strchr(n, '@'); | |
136 | if (!p) | |
137 | p = strrchr(n, '.'); | |
138 | ||
139 | assert_se(p); | |
140 | ||
141 | s = strndup(n, p - n); | |
142 | if (!s) | |
143 | return -ENOMEM; | |
144 | ||
145 | *ret = s; | |
146 | return 0; | |
9e2f7c11 LP |
147 | } |
148 | ||
149 | int unit_name_to_instance(const char *n, char **instance) { | |
150 | const char *p, *d; | |
151 | char *i; | |
152 | ||
153 | assert(n); | |
154 | assert(instance); | |
155 | ||
7410616c LP |
156 | if (!unit_name_is_valid(n, UNIT_NAME_ANY)) |
157 | return -EINVAL; | |
158 | ||
9e2f7c11 | 159 | /* Everything past the first @ and before the last . is the instance */ |
35eb6b12 LP |
160 | p = strchr(n, '@'); |
161 | if (!p) { | |
9e2f7c11 LP |
162 | *instance = NULL; |
163 | return 0; | |
164 | } | |
165 | ||
7410616c LP |
166 | p++; |
167 | ||
168 | d = strrchr(p, '.'); | |
b9a33026 LP |
169 | if (!d) |
170 | return -EINVAL; | |
9e2f7c11 | 171 | |
7410616c | 172 | i = strndup(p, d-p); |
35eb6b12 | 173 | if (!i) |
9e2f7c11 LP |
174 | return -ENOMEM; |
175 | ||
176 | *instance = i; | |
b9a33026 | 177 | return 1; |
9e2f7c11 LP |
178 | } |
179 | ||
7410616c | 180 | int unit_name_to_prefix_and_instance(const char *n, char **ret) { |
9e2f7c11 | 181 | const char *d; |
7410616c | 182 | char *s; |
9e2f7c11 LP |
183 | |
184 | assert(n); | |
7410616c LP |
185 | assert(ret); |
186 | ||
187 | if (!unit_name_is_valid(n, UNIT_NAME_ANY)) | |
188 | return -EINVAL; | |
9e2f7c11 | 189 | |
7410616c LP |
190 | d = strrchr(n, '.'); |
191 | if (!d) | |
192 | return -EINVAL; | |
193 | ||
194 | s = strndup(n, d - n); | |
195 | if (!s) | |
196 | return -ENOMEM; | |
197 | ||
198 | *ret = s; | |
199 | return 0; | |
9e2f7c11 LP |
200 | } |
201 | ||
7410616c LP |
202 | UnitType unit_name_to_type(const char *n) { |
203 | const char *e; | |
9e2f7c11 | 204 | |
b9a33026 LP |
205 | assert(n); |
206 | ||
7410616c LP |
207 | if (!unit_name_is_valid(n, UNIT_NAME_ANY)) |
208 | return _UNIT_TYPE_INVALID; | |
9e2f7c11 | 209 | |
7410616c LP |
210 | assert_se(e = strrchr(n, '.')); |
211 | ||
212 | return unit_type_from_string(e + 1); | |
9e2f7c11 LP |
213 | } |
214 | ||
7410616c LP |
215 | int unit_name_change_suffix(const char *n, const char *suffix, char **ret) { |
216 | char *e, *s; | |
9e2f7c11 LP |
217 | size_t a, b; |
218 | ||
219 | assert(n); | |
9e2f7c11 | 220 | assert(suffix); |
7410616c LP |
221 | assert(ret); |
222 | ||
223 | if (!unit_name_is_valid(n, UNIT_NAME_ANY)) | |
224 | return -EINVAL; | |
225 | ||
226 | if (!unit_suffix_is_valid(suffix)) | |
227 | return -EINVAL; | |
9e2f7c11 LP |
228 | |
229 | assert_se(e = strrchr(n, '.')); | |
7410616c | 230 | |
9e2f7c11 LP |
231 | a = e - n; |
232 | b = strlen(suffix); | |
233 | ||
7410616c LP |
234 | s = new(char, a + b + 1); |
235 | if (!s) | |
236 | return -ENOMEM; | |
9e2f7c11 | 237 | |
7410616c LP |
238 | strcpy(mempcpy(s, n, a), suffix); |
239 | *ret = s; | |
240 | ||
241 | return 0; | |
9e2f7c11 LP |
242 | } |
243 | ||
7410616c LP |
244 | int unit_name_build(const char *prefix, const char *instance, const char *suffix, char **ret) { |
245 | char *s; | |
246 | ||
9e2f7c11 | 247 | assert(prefix); |
9e2f7c11 | 248 | assert(suffix); |
7410616c LP |
249 | assert(ret); |
250 | ||
251 | if (!unit_prefix_is_valid(prefix)) | |
252 | return -EINVAL; | |
253 | ||
254 | if (instance && !unit_instance_is_valid(instance)) | |
255 | return -EINVAL; | |
256 | ||
257 | if (!unit_suffix_is_valid(suffix)) | |
258 | return -EINVAL; | |
9e2f7c11 LP |
259 | |
260 | if (!instance) | |
7410616c LP |
261 | s = strappend(prefix, suffix); |
262 | else | |
263 | s = strjoin(prefix, "@", instance, suffix, NULL); | |
264 | if (!s) | |
265 | return -ENOMEM; | |
9e2f7c11 | 266 | |
7410616c LP |
267 | *ret = s; |
268 | return 0; | |
9e2f7c11 LP |
269 | } |
270 | ||
4b712653 | 271 | static char *do_escape_char(char c, char *t) { |
b9a33026 LP |
272 | assert(t); |
273 | ||
4b712653 KS |
274 | *(t++) = '\\'; |
275 | *(t++) = 'x'; | |
276 | *(t++) = hexchar(c >> 4); | |
277 | *(t++) = hexchar(c); | |
b9a33026 | 278 | |
4b712653 KS |
279 | return t; |
280 | } | |
281 | ||
282 | static char *do_escape(const char *f, char *t) { | |
9e2f7c11 LP |
283 | assert(f); |
284 | assert(t); | |
285 | ||
4b712653 KS |
286 | /* do not create units with a leading '.', like for "/.dotdir" mount points */ |
287 | if (*f == '.') { | |
288 | t = do_escape_char(*f, t); | |
289 | f++; | |
290 | } | |
291 | ||
9e2f7c11 LP |
292 | for (; *f; f++) { |
293 | if (*f == '/') | |
8d567588 | 294 | *(t++) = '-'; |
4b712653 KS |
295 | else if (*f == '-' || *f == '\\' || !strchr(VALID_CHARS, *f)) |
296 | t = do_escape_char(*f, t); | |
297 | else | |
9e2f7c11 LP |
298 | *(t++) = *f; |
299 | } | |
300 | ||
301 | return t; | |
302 | } | |
303 | ||
9e2f7c11 LP |
304 | char *unit_name_escape(const char *f) { |
305 | char *r, *t; | |
306 | ||
b9a33026 LP |
307 | assert(f); |
308 | ||
b0193f1c LP |
309 | r = new(char, strlen(f)*4+1); |
310 | if (!r) | |
9e2f7c11 LP |
311 | return NULL; |
312 | ||
313 | t = do_escape(f, r); | |
314 | *t = 0; | |
315 | ||
316 | return r; | |
9e2f7c11 LP |
317 | } |
318 | ||
7410616c LP |
319 | int unit_name_unescape(const char *f, char **ret) { |
320 | _cleanup_free_ char *r = NULL; | |
321 | char *t; | |
9e2f7c11 LP |
322 | |
323 | assert(f); | |
324 | ||
b0193f1c LP |
325 | r = strdup(f); |
326 | if (!r) | |
7410616c | 327 | return -ENOMEM; |
9e2f7c11 LP |
328 | |
329 | for (t = r; *f; f++) { | |
8d567588 | 330 | if (*f == '-') |
9e2f7c11 LP |
331 | *(t++) = '/'; |
332 | else if (*f == '\\') { | |
333 | int a, b; | |
334 | ||
7410616c LP |
335 | if (f[1] != 'x') |
336 | return -EINVAL; | |
337 | ||
338 | a = unhexchar(f[2]); | |
339 | if (a < 0) | |
340 | return -EINVAL; | |
341 | ||
342 | b = unhexchar(f[3]); | |
343 | if (b < 0) | |
344 | return -EINVAL; | |
345 | ||
93c47472 | 346 | *(t++) = (char) (((uint8_t) a << 4U) | (uint8_t) b); |
7410616c | 347 | f += 3; |
9e2f7c11 LP |
348 | } else |
349 | *(t++) = *f; | |
350 | } | |
351 | ||
352 | *t = 0; | |
353 | ||
7410616c LP |
354 | *ret = r; |
355 | r = NULL; | |
356 | ||
357 | return 0; | |
9e2f7c11 LP |
358 | } |
359 | ||
7410616c LP |
360 | int unit_name_path_escape(const char *f, char **ret) { |
361 | char *p, *s; | |
35eb6b12 LP |
362 | |
363 | assert(f); | |
7410616c | 364 | assert(ret); |
35eb6b12 | 365 | |
7410616c | 366 | p = strdupa(f); |
35eb6b12 | 367 | if (!p) |
7410616c | 368 | return -ENOMEM; |
35eb6b12 LP |
369 | |
370 | path_kill_slashes(p); | |
371 | ||
b9a33026 | 372 | if (STR_IN_SET(p, "/", "")) |
7410616c LP |
373 | s = strdup("-"); |
374 | else { | |
375 | char *e; | |
35eb6b12 | 376 | |
7410616c LP |
377 | if (!path_is_safe(p)) |
378 | return -EINVAL; | |
35eb6b12 | 379 | |
7410616c LP |
380 | /* Truncate trailing slashes */ |
381 | e = endswith(p, "/"); | |
382 | if (e) | |
383 | *e = 0; | |
35eb6b12 | 384 | |
7410616c LP |
385 | /* Truncate leading slashes */ |
386 | if (p[0] == '/') | |
387 | p++; | |
35eb6b12 | 388 | |
7410616c | 389 | s = unit_name_escape(p); |
35eb6b12 | 390 | } |
7410616c LP |
391 | if (!s) |
392 | return -ENOMEM; | |
35eb6b12 | 393 | |
7410616c LP |
394 | *ret = s; |
395 | return 0; | |
35eb6b12 LP |
396 | } |
397 | ||
7410616c | 398 | int unit_name_path_unescape(const char *f, char **ret) { |
93c47472 | 399 | char *s; |
7410616c | 400 | int r; |
9e2f7c11 | 401 | |
7410616c | 402 | assert(f); |
9e2f7c11 | 403 | |
93c47472 LP |
404 | if (isempty(f)) |
405 | return -EINVAL; | |
406 | ||
7410616c LP |
407 | if (streq(f, "-")) { |
408 | s = strdup("/"); | |
409 | if (!s) | |
410 | return -ENOMEM; | |
93c47472 LP |
411 | } else { |
412 | char *w; | |
6ef9eeed | 413 | |
93c47472 LP |
414 | r = unit_name_unescape(f, &w); |
415 | if (r < 0) | |
416 | return r; | |
29283ea4 | 417 | |
93c47472 LP |
418 | /* Don't accept trailing or leading slashes */ |
419 | if (startswith(w, "/") || endswith(w, "/")) { | |
420 | free(w); | |
421 | return -EINVAL; | |
422 | } | |
29283ea4 | 423 | |
93c47472 LP |
424 | /* Prefix a slash again */ |
425 | s = strappend("/", w); | |
7410616c | 426 | free(w); |
93c47472 LP |
427 | if (!s) |
428 | return -ENOMEM; | |
429 | ||
430 | if (!path_is_safe(s)) { | |
431 | free(s); | |
432 | return -EINVAL; | |
433 | } | |
7410616c | 434 | } |
6ef9eeed | 435 | |
93c47472 LP |
436 | if (ret) |
437 | *ret = s; | |
438 | else | |
439 | free(s); | |
440 | ||
7410616c | 441 | return 0; |
29283ea4 MS |
442 | } |
443 | ||
7410616c | 444 | int unit_name_replace_instance(const char *f, const char *i, char **ret) { |
9e2f7c11 | 445 | const char *p, *e; |
7410616c | 446 | char *s; |
8556879e | 447 | size_t a, b; |
9e2f7c11 LP |
448 | |
449 | assert(f); | |
b9a33026 | 450 | assert(i); |
7410616c | 451 | assert(ret); |
9e2f7c11 | 452 | |
7410616c LP |
453 | if (!unit_name_is_valid(f, UNIT_NAME_INSTANCE|UNIT_NAME_TEMPLATE)) |
454 | return -EINVAL; | |
455 | if (!unit_instance_is_valid(i)) | |
456 | return -EINVAL; | |
9e2f7c11 | 457 | |
7410616c LP |
458 | assert_se(p = strchr(f, '@')); |
459 | assert_se(e = strrchr(f, '.')); | |
9e2f7c11 | 460 | |
8556879e LP |
461 | a = p - f; |
462 | b = strlen(i); | |
9e2f7c11 | 463 | |
7410616c LP |
464 | s = new(char, a + 1 + b + strlen(e) + 1); |
465 | if (!s) | |
466 | return -ENOMEM; | |
9e2f7c11 | 467 | |
7410616c LP |
468 | strcpy(mempcpy(mempcpy(s, f, a + 1), i, b), e); |
469 | ||
470 | *ret = s; | |
471 | return 0; | |
9e2f7c11 LP |
472 | } |
473 | ||
7410616c | 474 | int unit_name_template(const char *f, char **ret) { |
9e2f7c11 | 475 | const char *p, *e; |
7410616c | 476 | char *s; |
9e2f7c11 LP |
477 | size_t a; |
478 | ||
b9a33026 | 479 | assert(f); |
7410616c | 480 | assert(ret); |
b9a33026 | 481 | |
7410616c LP |
482 | if (!unit_name_is_valid(f, UNIT_NAME_INSTANCE|UNIT_NAME_TEMPLATE)) |
483 | return -EINVAL; | |
9e2f7c11 | 484 | |
7410616c LP |
485 | assert_se(p = strchr(f, '@')); |
486 | assert_se(e = strrchr(f, '.')); | |
b9a33026 LP |
487 | |
488 | a = p - f; | |
9e2f7c11 | 489 | |
7410616c LP |
490 | s = new(char, a + 1 + strlen(e) + 1); |
491 | if (!s) | |
492 | return -ENOMEM; | |
9e2f7c11 | 493 | |
7410616c LP |
494 | strcpy(mempcpy(s, f, a + 1), e); |
495 | ||
496 | *ret = s; | |
497 | return 0; | |
9e2f7c11 | 498 | } |
a16e1123 | 499 | |
7410616c | 500 | int unit_name_from_path(const char *path, const char *suffix, char **ret) { |
58d08142 | 501 | _cleanup_free_ char *p = NULL; |
7410616c LP |
502 | char *s = NULL; |
503 | int r; | |
5ffceb2f | 504 | |
a16e1123 LP |
505 | assert(path); |
506 | assert(suffix); | |
7410616c | 507 | assert(ret); |
a16e1123 | 508 | |
7410616c LP |
509 | if (!unit_suffix_is_valid(suffix)) |
510 | return -EINVAL; | |
5ffceb2f | 511 | |
7410616c LP |
512 | r = unit_name_path_escape(path, &p); |
513 | if (r < 0) | |
514 | return r; | |
515 | ||
516 | s = strappend(p, suffix); | |
517 | if (!s) | |
518 | return -ENOMEM; | |
519 | ||
520 | *ret = s; | |
521 | return 0; | |
a16e1123 LP |
522 | } |
523 | ||
7410616c | 524 | int unit_name_from_path_instance(const char *prefix, const char *path, const char *suffix, char **ret) { |
58d08142 | 525 | _cleanup_free_ char *p = NULL; |
7410616c LP |
526 | char *s; |
527 | int r; | |
9fff8a1f | 528 | |
35eb6b12 | 529 | assert(prefix); |
9fff8a1f LP |
530 | assert(path); |
531 | assert(suffix); | |
7410616c | 532 | assert(ret); |
9fff8a1f | 533 | |
7410616c LP |
534 | if (!unit_prefix_is_valid(prefix)) |
535 | return -EINVAL; | |
536 | ||
537 | if (!unit_suffix_is_valid(suffix)) | |
538 | return -EINVAL; | |
539 | ||
540 | r = unit_name_path_escape(path, &p); | |
541 | if (r < 0) | |
542 | return r; | |
543 | ||
544 | s = strjoin(prefix, "@", p, suffix, NULL); | |
545 | if (!s) | |
546 | return -ENOMEM; | |
9fff8a1f | 547 | |
7410616c LP |
548 | *ret = s; |
549 | return 0; | |
9fff8a1f LP |
550 | } |
551 | ||
7410616c LP |
552 | int unit_name_to_path(const char *name, char **ret) { |
553 | _cleanup_free_ char *prefix = NULL; | |
554 | int r; | |
a16e1123 LP |
555 | |
556 | assert(name); | |
557 | ||
7410616c LP |
558 | r = unit_name_to_prefix(name, &prefix); |
559 | if (r < 0) | |
560 | return r; | |
a16e1123 | 561 | |
7410616c | 562 | return unit_name_path_unescape(prefix, ret); |
9fc50704 | 563 | } |
48899192 MS |
564 | |
565 | char *unit_dbus_path_from_name(const char *name) { | |
9444b1f2 | 566 | _cleanup_free_ char *e = NULL; |
48899192 | 567 | |
35eb6b12 LP |
568 | assert(name); |
569 | ||
f01de965 | 570 | e = bus_label_escape(name); |
48899192 MS |
571 | if (!e) |
572 | return NULL; | |
573 | ||
9444b1f2 | 574 | return strappend("/org/freedesktop/systemd1/unit/", e); |
48899192 | 575 | } |
b0193f1c | 576 | |
ede3a796 LP |
577 | int unit_name_from_dbus_path(const char *path, char **name) { |
578 | const char *e; | |
579 | char *n; | |
580 | ||
581 | e = startswith(path, "/org/freedesktop/systemd1/unit/"); | |
582 | if (!e) | |
583 | return -EINVAL; | |
584 | ||
f01de965 | 585 | n = bus_label_unescape(e); |
ede3a796 LP |
586 | if (!n) |
587 | return -ENOMEM; | |
588 | ||
589 | *name = n; | |
590 | return 0; | |
591 | } | |
592 | ||
21b735e7 LP |
593 | const char* unit_dbus_interface_from_type(UnitType t) { |
594 | ||
595 | static const char *const table[_UNIT_TYPE_MAX] = { | |
596 | [UNIT_SERVICE] = "org.freedesktop.systemd1.Service", | |
597 | [UNIT_SOCKET] = "org.freedesktop.systemd1.Socket", | |
598 | [UNIT_BUSNAME] = "org.freedesktop.systemd1.BusName", | |
599 | [UNIT_TARGET] = "org.freedesktop.systemd1.Target", | |
600 | [UNIT_SNAPSHOT] = "org.freedesktop.systemd1.Snapshot", | |
601 | [UNIT_DEVICE] = "org.freedesktop.systemd1.Device", | |
602 | [UNIT_MOUNT] = "org.freedesktop.systemd1.Mount", | |
603 | [UNIT_AUTOMOUNT] = "org.freedesktop.systemd1.Automount", | |
604 | [UNIT_SWAP] = "org.freedesktop.systemd1.Swap", | |
605 | [UNIT_TIMER] = "org.freedesktop.systemd1.Timer", | |
606 | [UNIT_PATH] = "org.freedesktop.systemd1.Path", | |
607 | [UNIT_SLICE] = "org.freedesktop.systemd1.Slice", | |
608 | [UNIT_SCOPE] = "org.freedesktop.systemd1.Scope", | |
609 | }; | |
610 | ||
611 | if (t < 0) | |
612 | return NULL; | |
613 | if (t >= _UNIT_TYPE_MAX) | |
614 | return NULL; | |
615 | ||
616 | return table[t]; | |
617 | } | |
618 | ||
619 | const char *unit_dbus_interface_from_name(const char *name) { | |
620 | UnitType t; | |
621 | ||
622 | t = unit_name_to_type(name); | |
623 | if (t < 0) | |
624 | return NULL; | |
625 | ||
626 | return unit_dbus_interface_from_type(t); | |
627 | } | |
628 | ||
7410616c LP |
629 | static char *do_escape_mangle(const char *f, UnitNameMangle allow_globs, char *t) { |
630 | const char *valid_chars; | |
631 | ||
632 | assert(f); | |
633 | assert(IN_SET(allow_globs, UNIT_NAME_GLOB, UNIT_NAME_NOGLOB)); | |
634 | assert(t); | |
635 | ||
636 | /* We'll only escape the obvious characters here, to play | |
637 | * safe. */ | |
638 | ||
639 | valid_chars = allow_globs == UNIT_NAME_GLOB ? "@" VALID_CHARS "[]!-*?" : "@" VALID_CHARS; | |
640 | ||
641 | for (; *f; f++) { | |
642 | if (*f == '/') | |
643 | *(t++) = '-'; | |
644 | else if (!strchr(valid_chars, *f)) | |
645 | t = do_escape_char(*f, t); | |
646 | else | |
647 | *(t++) = *f; | |
648 | } | |
649 | ||
650 | return t; | |
651 | } | |
652 | ||
e3e0314b | 653 | /** |
5e03c6e3 ZJS |
654 | * Convert a string to a unit name. /dev/blah is converted to dev-blah.device, |
655 | * /blah/blah is converted to blah-blah.mount, anything else is left alone, | |
656 | * except that @suffix is appended if a valid unit suffix is not present. | |
657 | * | |
658 | * If @allow_globs, globs characters are preserved. Otherwise they are escaped. | |
e3e0314b | 659 | */ |
7410616c LP |
660 | int unit_name_mangle_with_suffix(const char *name, UnitNameMangle allow_globs, const char *suffix, char **ret) { |
661 | char *s, *t; | |
662 | int r; | |
b0193f1c LP |
663 | |
664 | assert(name); | |
5e03c6e3 | 665 | assert(suffix); |
7410616c | 666 | assert(ret); |
b0193f1c | 667 | |
7410616c LP |
668 | if (isempty(name)) /* We cannot mangle empty unit names to become valid, sorry. */ |
669 | return -EINVAL; | |
b0193f1c | 670 | |
7410616c LP |
671 | if (!unit_suffix_is_valid(suffix)) |
672 | return -EINVAL; | |
b0193f1c | 673 | |
7410616c LP |
674 | if (unit_name_is_valid(name, UNIT_NAME_ANY)) { |
675 | /* No mangling necessary... */ | |
676 | s = strdup(name); | |
677 | if (!s) | |
678 | return -ENOMEM; | |
1dcf6065 | 679 | |
7410616c LP |
680 | *ret = s; |
681 | return 0; | |
682 | } | |
1dcf6065 | 683 | |
7410616c LP |
684 | if (is_device_path(name)) { |
685 | r = unit_name_from_path(name, ".device", ret); | |
686 | if (r >= 0) | |
687 | return 1; | |
688 | if (r != -EINVAL) | |
689 | return r; | |
690 | } | |
1dcf6065 | 691 | |
7410616c LP |
692 | if (path_is_absolute(name)) { |
693 | r = unit_name_from_path(name, ".mount", ret); | |
694 | if (r >= 0) | |
695 | return 1; | |
696 | if (r != -EINVAL) | |
697 | return r; | |
698 | } | |
1dcf6065 | 699 | |
7410616c LP |
700 | s = new(char, strlen(name) * 4 + strlen(suffix) + 1); |
701 | if (!s) | |
702 | return -ENOMEM; | |
5f739699 | 703 | |
7410616c LP |
704 | t = do_escape_mangle(name, allow_globs, s); |
705 | *t = 0; | |
5f739699 | 706 | |
7410616c LP |
707 | if (unit_name_to_type(s) < 0) |
708 | strcpy(t, suffix); | |
5f739699 | 709 | |
7410616c LP |
710 | *ret = s; |
711 | return 1; | |
5f739699 | 712 | } |
fb6becb4 | 713 | |
93c47472 LP |
714 | int slice_build_parent_slice(const char *slice, char **ret) { |
715 | char *s, *dash; | |
2fc09a9c | 716 | int r; |
93c47472 LP |
717 | |
718 | assert(slice); | |
719 | assert(ret); | |
720 | ||
721 | if (!slice_name_is_valid(slice)) | |
722 | return -EINVAL; | |
723 | ||
724 | if (streq(slice, "-.slice")) { | |
725 | *ret = NULL; | |
726 | return 0; | |
727 | } | |
728 | ||
729 | s = strdup(slice); | |
730 | if (!s) | |
731 | return -ENOMEM; | |
732 | ||
733 | dash = strrchr(s, '-'); | |
734 | if (dash) | |
735 | strcpy(dash, ".slice"); | |
736 | else { | |
2fc09a9c | 737 | r = free_and_strdup(&s, "-.slice"); |
8e542fcd DM |
738 | if (r < 0) { |
739 | free(s); | |
2fc09a9c | 740 | return r; |
8e542fcd | 741 | } |
93c47472 LP |
742 | } |
743 | ||
744 | *ret = s; | |
745 | return 1; | |
746 | } | |
747 | ||
7410616c LP |
748 | int slice_build_subslice(const char *slice, const char*name, char **ret) { |
749 | char *subslice; | |
fb6becb4 LP |
750 | |
751 | assert(slice); | |
752 | assert(name); | |
7410616c LP |
753 | assert(ret); |
754 | ||
93c47472 | 755 | if (!slice_name_is_valid(slice)) |
7410616c LP |
756 | return -EINVAL; |
757 | ||
758 | if (!unit_prefix_is_valid(name)) | |
759 | return -EINVAL; | |
fb6becb4 LP |
760 | |
761 | if (streq(slice, "-.slice")) | |
7410616c | 762 | subslice = strappend(name, ".slice"); |
fb6becb4 LP |
763 | else { |
764 | char *e; | |
765 | ||
93c47472 | 766 | assert_se(e = endswith(slice, ".slice")); |
fb6becb4 | 767 | |
7410616c LP |
768 | subslice = new(char, (e - slice) + 1 + strlen(name) + 6 + 1); |
769 | if (!subslice) | |
fb6becb4 LP |
770 | return -ENOMEM; |
771 | ||
7410616c | 772 | stpcpy(stpcpy(stpcpy(mempcpy(subslice, slice, e - slice), "-"), name), ".slice"); |
fb6becb4 LP |
773 | } |
774 | ||
7410616c | 775 | *ret = subslice; |
fb6becb4 LP |
776 | return 0; |
777 | } | |
cb87a73b | 778 | |
93c47472 LP |
779 | bool slice_name_is_valid(const char *name) { |
780 | const char *p, *e; | |
781 | bool dash = false; | |
782 | ||
783 | if (!unit_name_is_valid(name, UNIT_NAME_PLAIN)) | |
784 | return false; | |
785 | ||
786 | if (streq(name, "-.slice")) | |
787 | return true; | |
788 | ||
789 | e = endswith(name, ".slice"); | |
790 | if (!e) | |
791 | return false; | |
792 | ||
793 | for (p = name; p < e; p++) { | |
794 | ||
795 | if (*p == '-') { | |
796 | ||
797 | /* Don't allow initial dash */ | |
798 | if (p == name) | |
799 | return false; | |
800 | ||
801 | /* Don't allow multiple dashes */ | |
802 | if (dash) | |
803 | return false; | |
804 | ||
805 | dash = true; | |
806 | } else | |
807 | dash = false; | |
808 | } | |
809 | ||
810 | /* Don't allow trailing hash */ | |
811 | if (dash) | |
812 | return false; | |
813 | ||
814 | return true; | |
815 | } | |
816 | ||
7410616c LP |
817 | static const char* const unit_type_table[_UNIT_TYPE_MAX] = { |
818 | [UNIT_SERVICE] = "service", | |
819 | [UNIT_SOCKET] = "socket", | |
820 | [UNIT_BUSNAME] = "busname", | |
821 | [UNIT_TARGET] = "target", | |
822 | [UNIT_SNAPSHOT] = "snapshot", | |
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 | ||
953 | static const char* const snapshot_state_table[_SNAPSHOT_STATE_MAX] = { | |
954 | [SNAPSHOT_DEAD] = "dead", | |
955 | [SNAPSHOT_ACTIVE] = "active" | |
956 | }; | |
957 | ||
958 | DEFINE_STRING_TABLE_LOOKUP(snapshot_state, SnapshotState); | |
959 | ||
960 | static const char* const socket_state_table[_SOCKET_STATE_MAX] = { | |
961 | [SOCKET_DEAD] = "dead", | |
962 | [SOCKET_START_PRE] = "start-pre", | |
963 | [SOCKET_START_CHOWN] = "start-chown", | |
964 | [SOCKET_START_POST] = "start-post", | |
965 | [SOCKET_LISTENING] = "listening", | |
966 | [SOCKET_RUNNING] = "running", | |
967 | [SOCKET_STOP_PRE] = "stop-pre", | |
968 | [SOCKET_STOP_PRE_SIGTERM] = "stop-pre-sigterm", | |
969 | [SOCKET_STOP_PRE_SIGKILL] = "stop-pre-sigkill", | |
970 | [SOCKET_STOP_POST] = "stop-post", | |
971 | [SOCKET_FINAL_SIGTERM] = "final-sigterm", | |
972 | [SOCKET_FINAL_SIGKILL] = "final-sigkill", | |
973 | [SOCKET_FAILED] = "failed" | |
974 | }; | |
975 | ||
976 | DEFINE_STRING_TABLE_LOOKUP(socket_state, SocketState); | |
977 | ||
978 | static const char* const swap_state_table[_SWAP_STATE_MAX] = { | |
979 | [SWAP_DEAD] = "dead", | |
980 | [SWAP_ACTIVATING] = "activating", | |
981 | [SWAP_ACTIVATING_DONE] = "activating-done", | |
982 | [SWAP_ACTIVE] = "active", | |
983 | [SWAP_DEACTIVATING] = "deactivating", | |
984 | [SWAP_ACTIVATING_SIGTERM] = "activating-sigterm", | |
985 | [SWAP_ACTIVATING_SIGKILL] = "activating-sigkill", | |
986 | [SWAP_DEACTIVATING_SIGTERM] = "deactivating-sigterm", | |
987 | [SWAP_DEACTIVATING_SIGKILL] = "deactivating-sigkill", | |
988 | [SWAP_FAILED] = "failed" | |
989 | }; | |
990 | ||
991 | DEFINE_STRING_TABLE_LOOKUP(swap_state, SwapState); | |
992 | ||
993 | static const char* const target_state_table[_TARGET_STATE_MAX] = { | |
994 | [TARGET_DEAD] = "dead", | |
995 | [TARGET_ACTIVE] = "active" | |
996 | }; | |
997 | ||
998 | DEFINE_STRING_TABLE_LOOKUP(target_state, TargetState); | |
999 | ||
1000 | static const char* const timer_state_table[_TIMER_STATE_MAX] = { | |
1001 | [TIMER_DEAD] = "dead", | |
1002 | [TIMER_WAITING] = "waiting", | |
1003 | [TIMER_RUNNING] = "running", | |
1004 | [TIMER_ELAPSED] = "elapsed", | |
1005 | [TIMER_FAILED] = "failed" | |
1006 | }; | |
1007 | ||
1008 | DEFINE_STRING_TABLE_LOOKUP(timer_state, TimerState); | |
1009 | ||
cb87a73b LN |
1010 | static const char* const unit_dependency_table[_UNIT_DEPENDENCY_MAX] = { |
1011 | [UNIT_REQUIRES] = "Requires", | |
1012 | [UNIT_REQUIRES_OVERRIDABLE] = "RequiresOverridable", | |
1013 | [UNIT_REQUISITE] = "Requisite", | |
1014 | [UNIT_REQUISITE_OVERRIDABLE] = "RequisiteOverridable", | |
1015 | [UNIT_WANTS] = "Wants", | |
1016 | [UNIT_BINDS_TO] = "BindsTo", | |
1017 | [UNIT_PART_OF] = "PartOf", | |
1018 | [UNIT_REQUIRED_BY] = "RequiredBy", | |
1019 | [UNIT_REQUIRED_BY_OVERRIDABLE] = "RequiredByOverridable", | |
be7d9ff7 LP |
1020 | [UNIT_REQUISITE_OF] = "RequisiteOf", |
1021 | [UNIT_REQUISITE_OF_OVERRIDABLE] = "RequisiteOfOverridable", | |
cb87a73b LN |
1022 | [UNIT_WANTED_BY] = "WantedBy", |
1023 | [UNIT_BOUND_BY] = "BoundBy", | |
1024 | [UNIT_CONSISTS_OF] = "ConsistsOf", | |
1025 | [UNIT_CONFLICTS] = "Conflicts", | |
1026 | [UNIT_CONFLICTED_BY] = "ConflictedBy", | |
1027 | [UNIT_BEFORE] = "Before", | |
1028 | [UNIT_AFTER] = "After", | |
1029 | [UNIT_ON_FAILURE] = "OnFailure", | |
1030 | [UNIT_TRIGGERS] = "Triggers", | |
1031 | [UNIT_TRIGGERED_BY] = "TriggeredBy", | |
1032 | [UNIT_PROPAGATES_RELOAD_TO] = "PropagatesReloadTo", | |
1033 | [UNIT_RELOAD_PROPAGATED_FROM] = "ReloadPropagatedFrom", | |
1034 | [UNIT_JOINS_NAMESPACE_OF] = "JoinsNamespaceOf", | |
1035 | [UNIT_REFERENCES] = "References", | |
1036 | [UNIT_REFERENCED_BY] = "ReferencedBy", | |
1037 | }; | |
1038 | ||
1039 | DEFINE_STRING_TABLE_LOOKUP(unit_dependency, UnitDependency); |