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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" |
8b43440b | 27 | #include "hexdecoct.h" |
07630cea | 28 | #include "path-util.h" |
8b43440b | 29 | #include "string-table.h" |
07630cea | 30 | #include "string-util.h" |
b9a33026 | 31 | #include "strv.h" |
07630cea | 32 | #include "unit-name.h" |
8b43440b | 33 | #include "util.h" |
9e2f7c11 LP |
34 | |
35 | #define VALID_CHARS \ | |
4b549144 | 36 | DIGITS LETTERS \ |
4f2d528d | 37 | ":-_.\\" |
9e2f7c11 | 38 | |
7410616c | 39 | bool unit_name_is_valid(const char *n, UnitNameFlags flags) { |
9e2f7c11 LP |
40 | const char *e, *i, *at; |
41 | ||
7410616c | 42 | assert((flags & ~(UNIT_NAME_PLAIN|UNIT_NAME_INSTANCE|UNIT_NAME_TEMPLATE)) == 0); |
9e2f7c11 | 43 | |
7410616c LP |
44 | if (_unlikely_(flags == 0)) |
45 | return false; | |
9e2f7c11 | 46 | |
b9a33026 LP |
47 | if (isempty(n)) |
48 | return false; | |
49 | ||
9e2f7c11 LP |
50 | if (strlen(n) >= UNIT_NAME_MAX) |
51 | return false; | |
52 | ||
71fad675 LP |
53 | e = strrchr(n, '.'); |
54 | if (!e || e == n) | |
9e2f7c11 LP |
55 | return false; |
56 | ||
5f739699 LP |
57 | if (unit_type_from_string(e + 1) < 0) |
58 | return false; | |
59 | ||
9e2f7c11 LP |
60 | for (i = n, at = NULL; i < e; i++) { |
61 | ||
62 | if (*i == '@' && !at) | |
63 | at = i; | |
64 | ||
65 | if (!strchr("@" VALID_CHARS, *i)) | |
66 | return false; | |
67 | } | |
68 | ||
7410616c LP |
69 | if (at == n) |
70 | return false; | |
9e2f7c11 | 71 | |
7410616c LP |
72 | if (flags & UNIT_NAME_PLAIN) |
73 | if (!at) | |
74 | return true; | |
9e2f7c11 | 75 | |
7410616c LP |
76 | if (flags & UNIT_NAME_INSTANCE) |
77 | if (at && e > at + 1) | |
78 | return true; | |
79 | ||
80 | if (flags & UNIT_NAME_TEMPLATE) | |
81 | if (at && e == at + 1) | |
82 | return true; | |
83 | ||
84 | return false; | |
85 | } | |
86 | ||
87 | bool unit_prefix_is_valid(const char *p) { | |
88 | ||
89 | /* We don't allow additional @ in the prefix string */ | |
90 | ||
91 | if (isempty(p)) | |
92 | return false; | |
93 | ||
94 | return in_charset(p, VALID_CHARS); | |
9e2f7c11 LP |
95 | } |
96 | ||
97 | bool unit_instance_is_valid(const char *i) { | |
9e2f7c11 LP |
98 | |
99 | /* The max length depends on the length of the string, so we | |
100 | * don't really check this here. */ | |
101 | ||
b9a33026 | 102 | if (isempty(i)) |
9e2f7c11 LP |
103 | return false; |
104 | ||
105 | /* We allow additional @ in the instance string, we do not | |
106 | * allow them in the prefix! */ | |
107 | ||
b9a33026 | 108 | return in_charset(i, "@" VALID_CHARS); |
9e2f7c11 LP |
109 | } |
110 | ||
7410616c LP |
111 | bool unit_suffix_is_valid(const char *s) { |
112 | if (isempty(s)) | |
113 | return false; | |
9e2f7c11 | 114 | |
7410616c LP |
115 | if (s[0] != '.') |
116 | return false; | |
9e2f7c11 | 117 | |
7410616c | 118 | if (unit_type_from_string(s + 1) < 0) |
9e2f7c11 LP |
119 | return false; |
120 | ||
7410616c LP |
121 | return true; |
122 | } | |
123 | ||
124 | int unit_name_to_prefix(const char *n, char **ret) { | |
125 | const char *p; | |
126 | char *s; | |
127 | ||
128 | assert(n); | |
129 | assert(ret); | |
130 | ||
131 | if (!unit_name_is_valid(n, UNIT_NAME_ANY)) | |
132 | return -EINVAL; | |
133 | ||
134 | p = strchr(n, '@'); | |
135 | if (!p) | |
136 | p = strrchr(n, '.'); | |
137 | ||
138 | assert_se(p); | |
139 | ||
140 | s = strndup(n, p - n); | |
141 | if (!s) | |
142 | return -ENOMEM; | |
143 | ||
144 | *ret = s; | |
145 | return 0; | |
9e2f7c11 LP |
146 | } |
147 | ||
148 | int unit_name_to_instance(const char *n, char **instance) { | |
149 | const char *p, *d; | |
150 | char *i; | |
151 | ||
152 | assert(n); | |
153 | assert(instance); | |
154 | ||
7410616c LP |
155 | if (!unit_name_is_valid(n, UNIT_NAME_ANY)) |
156 | return -EINVAL; | |
157 | ||
9e2f7c11 | 158 | /* Everything past the first @ and before the last . is the instance */ |
35eb6b12 LP |
159 | p = strchr(n, '@'); |
160 | if (!p) { | |
9e2f7c11 LP |
161 | *instance = NULL; |
162 | return 0; | |
163 | } | |
164 | ||
7410616c LP |
165 | p++; |
166 | ||
167 | d = strrchr(p, '.'); | |
b9a33026 LP |
168 | if (!d) |
169 | return -EINVAL; | |
9e2f7c11 | 170 | |
7410616c | 171 | i = strndup(p, d-p); |
35eb6b12 | 172 | if (!i) |
9e2f7c11 LP |
173 | return -ENOMEM; |
174 | ||
175 | *instance = i; | |
b9a33026 | 176 | return 1; |
9e2f7c11 LP |
177 | } |
178 | ||
7410616c | 179 | int unit_name_to_prefix_and_instance(const char *n, char **ret) { |
9e2f7c11 | 180 | const char *d; |
7410616c | 181 | char *s; |
9e2f7c11 LP |
182 | |
183 | assert(n); | |
7410616c LP |
184 | assert(ret); |
185 | ||
186 | if (!unit_name_is_valid(n, UNIT_NAME_ANY)) | |
187 | return -EINVAL; | |
9e2f7c11 | 188 | |
7410616c LP |
189 | d = strrchr(n, '.'); |
190 | if (!d) | |
191 | return -EINVAL; | |
192 | ||
193 | s = strndup(n, d - n); | |
194 | if (!s) | |
195 | return -ENOMEM; | |
196 | ||
197 | *ret = s; | |
198 | return 0; | |
9e2f7c11 LP |
199 | } |
200 | ||
7410616c LP |
201 | UnitType unit_name_to_type(const char *n) { |
202 | const char *e; | |
9e2f7c11 | 203 | |
b9a33026 LP |
204 | assert(n); |
205 | ||
7410616c LP |
206 | if (!unit_name_is_valid(n, UNIT_NAME_ANY)) |
207 | return _UNIT_TYPE_INVALID; | |
9e2f7c11 | 208 | |
7410616c LP |
209 | assert_se(e = strrchr(n, '.')); |
210 | ||
211 | return unit_type_from_string(e + 1); | |
9e2f7c11 LP |
212 | } |
213 | ||
7410616c LP |
214 | int unit_name_change_suffix(const char *n, const char *suffix, char **ret) { |
215 | char *e, *s; | |
9e2f7c11 LP |
216 | size_t a, b; |
217 | ||
218 | assert(n); | |
9e2f7c11 | 219 | assert(suffix); |
7410616c LP |
220 | assert(ret); |
221 | ||
222 | if (!unit_name_is_valid(n, UNIT_NAME_ANY)) | |
223 | return -EINVAL; | |
224 | ||
225 | if (!unit_suffix_is_valid(suffix)) | |
226 | return -EINVAL; | |
9e2f7c11 LP |
227 | |
228 | assert_se(e = strrchr(n, '.')); | |
7410616c | 229 | |
9e2f7c11 LP |
230 | a = e - n; |
231 | b = strlen(suffix); | |
232 | ||
7410616c LP |
233 | s = new(char, a + b + 1); |
234 | if (!s) | |
235 | return -ENOMEM; | |
9e2f7c11 | 236 | |
7410616c LP |
237 | strcpy(mempcpy(s, n, a), suffix); |
238 | *ret = s; | |
239 | ||
240 | return 0; | |
9e2f7c11 LP |
241 | } |
242 | ||
7410616c LP |
243 | int unit_name_build(const char *prefix, const char *instance, const char *suffix, char **ret) { |
244 | char *s; | |
245 | ||
9e2f7c11 | 246 | assert(prefix); |
9e2f7c11 | 247 | assert(suffix); |
7410616c LP |
248 | assert(ret); |
249 | ||
250 | if (!unit_prefix_is_valid(prefix)) | |
251 | return -EINVAL; | |
252 | ||
253 | if (instance && !unit_instance_is_valid(instance)) | |
254 | return -EINVAL; | |
255 | ||
256 | if (!unit_suffix_is_valid(suffix)) | |
257 | return -EINVAL; | |
9e2f7c11 LP |
258 | |
259 | if (!instance) | |
7410616c LP |
260 | s = strappend(prefix, suffix); |
261 | else | |
262 | s = strjoin(prefix, "@", instance, suffix, NULL); | |
263 | if (!s) | |
264 | return -ENOMEM; | |
9e2f7c11 | 265 | |
7410616c LP |
266 | *ret = s; |
267 | return 0; | |
9e2f7c11 LP |
268 | } |
269 | ||
4b712653 | 270 | static char *do_escape_char(char c, char *t) { |
b9a33026 LP |
271 | assert(t); |
272 | ||
4b712653 KS |
273 | *(t++) = '\\'; |
274 | *(t++) = 'x'; | |
275 | *(t++) = hexchar(c >> 4); | |
276 | *(t++) = hexchar(c); | |
b9a33026 | 277 | |
4b712653 KS |
278 | return t; |
279 | } | |
280 | ||
281 | static char *do_escape(const char *f, char *t) { | |
9e2f7c11 LP |
282 | assert(f); |
283 | assert(t); | |
284 | ||
4b712653 KS |
285 | /* do not create units with a leading '.', like for "/.dotdir" mount points */ |
286 | if (*f == '.') { | |
287 | t = do_escape_char(*f, t); | |
288 | f++; | |
289 | } | |
290 | ||
9e2f7c11 LP |
291 | for (; *f; f++) { |
292 | if (*f == '/') | |
8d567588 | 293 | *(t++) = '-'; |
4b712653 KS |
294 | else if (*f == '-' || *f == '\\' || !strchr(VALID_CHARS, *f)) |
295 | t = do_escape_char(*f, t); | |
296 | else | |
9e2f7c11 LP |
297 | *(t++) = *f; |
298 | } | |
299 | ||
300 | return t; | |
301 | } | |
302 | ||
9e2f7c11 LP |
303 | char *unit_name_escape(const char *f) { |
304 | char *r, *t; | |
305 | ||
b9a33026 LP |
306 | assert(f); |
307 | ||
b0193f1c LP |
308 | r = new(char, strlen(f)*4+1); |
309 | if (!r) | |
9e2f7c11 LP |
310 | return NULL; |
311 | ||
312 | t = do_escape(f, r); | |
313 | *t = 0; | |
314 | ||
315 | return r; | |
9e2f7c11 LP |
316 | } |
317 | ||
7410616c LP |
318 | int unit_name_unescape(const char *f, char **ret) { |
319 | _cleanup_free_ char *r = NULL; | |
320 | char *t; | |
9e2f7c11 LP |
321 | |
322 | assert(f); | |
323 | ||
b0193f1c LP |
324 | r = strdup(f); |
325 | if (!r) | |
7410616c | 326 | return -ENOMEM; |
9e2f7c11 LP |
327 | |
328 | for (t = r; *f; f++) { | |
8d567588 | 329 | if (*f == '-') |
9e2f7c11 LP |
330 | *(t++) = '/'; |
331 | else if (*f == '\\') { | |
332 | int a, b; | |
333 | ||
7410616c LP |
334 | if (f[1] != 'x') |
335 | return -EINVAL; | |
336 | ||
337 | a = unhexchar(f[2]); | |
338 | if (a < 0) | |
339 | return -EINVAL; | |
340 | ||
341 | b = unhexchar(f[3]); | |
342 | if (b < 0) | |
343 | return -EINVAL; | |
344 | ||
93c47472 | 345 | *(t++) = (char) (((uint8_t) a << 4U) | (uint8_t) b); |
7410616c | 346 | f += 3; |
9e2f7c11 LP |
347 | } else |
348 | *(t++) = *f; | |
349 | } | |
350 | ||
351 | *t = 0; | |
352 | ||
7410616c LP |
353 | *ret = r; |
354 | r = NULL; | |
355 | ||
356 | return 0; | |
9e2f7c11 LP |
357 | } |
358 | ||
7410616c LP |
359 | int unit_name_path_escape(const char *f, char **ret) { |
360 | char *p, *s; | |
35eb6b12 LP |
361 | |
362 | assert(f); | |
7410616c | 363 | assert(ret); |
35eb6b12 | 364 | |
7410616c | 365 | p = strdupa(f); |
35eb6b12 | 366 | if (!p) |
7410616c | 367 | return -ENOMEM; |
35eb6b12 LP |
368 | |
369 | path_kill_slashes(p); | |
370 | ||
b9a33026 | 371 | if (STR_IN_SET(p, "/", "")) |
7410616c LP |
372 | s = strdup("-"); |
373 | else { | |
374 | char *e; | |
35eb6b12 | 375 | |
7410616c LP |
376 | if (!path_is_safe(p)) |
377 | return -EINVAL; | |
35eb6b12 | 378 | |
7410616c LP |
379 | /* Truncate trailing slashes */ |
380 | e = endswith(p, "/"); | |
381 | if (e) | |
382 | *e = 0; | |
35eb6b12 | 383 | |
7410616c LP |
384 | /* Truncate leading slashes */ |
385 | if (p[0] == '/') | |
386 | p++; | |
35eb6b12 | 387 | |
7410616c | 388 | s = unit_name_escape(p); |
35eb6b12 | 389 | } |
7410616c LP |
390 | if (!s) |
391 | return -ENOMEM; | |
35eb6b12 | 392 | |
7410616c LP |
393 | *ret = s; |
394 | return 0; | |
35eb6b12 LP |
395 | } |
396 | ||
7410616c | 397 | int unit_name_path_unescape(const char *f, char **ret) { |
93c47472 | 398 | char *s; |
7410616c | 399 | int r; |
9e2f7c11 | 400 | |
7410616c | 401 | assert(f); |
9e2f7c11 | 402 | |
93c47472 LP |
403 | if (isempty(f)) |
404 | return -EINVAL; | |
405 | ||
7410616c LP |
406 | if (streq(f, "-")) { |
407 | s = strdup("/"); | |
408 | if (!s) | |
409 | return -ENOMEM; | |
93c47472 LP |
410 | } else { |
411 | char *w; | |
6ef9eeed | 412 | |
93c47472 LP |
413 | r = unit_name_unescape(f, &w); |
414 | if (r < 0) | |
415 | return r; | |
29283ea4 | 416 | |
93c47472 LP |
417 | /* Don't accept trailing or leading slashes */ |
418 | if (startswith(w, "/") || endswith(w, "/")) { | |
419 | free(w); | |
420 | return -EINVAL; | |
421 | } | |
29283ea4 | 422 | |
93c47472 LP |
423 | /* Prefix a slash again */ |
424 | s = strappend("/", w); | |
7410616c | 425 | free(w); |
93c47472 LP |
426 | if (!s) |
427 | return -ENOMEM; | |
428 | ||
429 | if (!path_is_safe(s)) { | |
430 | free(s); | |
431 | return -EINVAL; | |
432 | } | |
7410616c | 433 | } |
6ef9eeed | 434 | |
93c47472 LP |
435 | if (ret) |
436 | *ret = s; | |
437 | else | |
438 | free(s); | |
439 | ||
7410616c | 440 | return 0; |
29283ea4 MS |
441 | } |
442 | ||
7410616c | 443 | int unit_name_replace_instance(const char *f, const char *i, char **ret) { |
9e2f7c11 | 444 | const char *p, *e; |
7410616c | 445 | char *s; |
8556879e | 446 | size_t a, b; |
9e2f7c11 LP |
447 | |
448 | assert(f); | |
b9a33026 | 449 | assert(i); |
7410616c | 450 | assert(ret); |
9e2f7c11 | 451 | |
7410616c LP |
452 | if (!unit_name_is_valid(f, UNIT_NAME_INSTANCE|UNIT_NAME_TEMPLATE)) |
453 | return -EINVAL; | |
454 | if (!unit_instance_is_valid(i)) | |
455 | return -EINVAL; | |
9e2f7c11 | 456 | |
7410616c LP |
457 | assert_se(p = strchr(f, '@')); |
458 | assert_se(e = strrchr(f, '.')); | |
9e2f7c11 | 459 | |
8556879e LP |
460 | a = p - f; |
461 | b = strlen(i); | |
9e2f7c11 | 462 | |
7410616c LP |
463 | s = new(char, a + 1 + b + strlen(e) + 1); |
464 | if (!s) | |
465 | return -ENOMEM; | |
9e2f7c11 | 466 | |
7410616c LP |
467 | strcpy(mempcpy(mempcpy(s, f, a + 1), i, b), e); |
468 | ||
469 | *ret = s; | |
470 | return 0; | |
9e2f7c11 LP |
471 | } |
472 | ||
7410616c | 473 | int unit_name_template(const char *f, char **ret) { |
9e2f7c11 | 474 | const char *p, *e; |
7410616c | 475 | char *s; |
9e2f7c11 LP |
476 | size_t a; |
477 | ||
b9a33026 | 478 | assert(f); |
7410616c | 479 | assert(ret); |
b9a33026 | 480 | |
7410616c LP |
481 | if (!unit_name_is_valid(f, UNIT_NAME_INSTANCE|UNIT_NAME_TEMPLATE)) |
482 | return -EINVAL; | |
9e2f7c11 | 483 | |
7410616c LP |
484 | assert_se(p = strchr(f, '@')); |
485 | assert_se(e = strrchr(f, '.')); | |
b9a33026 LP |
486 | |
487 | a = p - f; | |
9e2f7c11 | 488 | |
7410616c LP |
489 | s = new(char, a + 1 + strlen(e) + 1); |
490 | if (!s) | |
491 | return -ENOMEM; | |
9e2f7c11 | 492 | |
7410616c LP |
493 | strcpy(mempcpy(s, f, a + 1), e); |
494 | ||
495 | *ret = s; | |
496 | return 0; | |
9e2f7c11 | 497 | } |
a16e1123 | 498 | |
7410616c | 499 | int unit_name_from_path(const char *path, const char *suffix, char **ret) { |
58d08142 | 500 | _cleanup_free_ char *p = NULL; |
7410616c LP |
501 | char *s = NULL; |
502 | int r; | |
5ffceb2f | 503 | |
a16e1123 LP |
504 | assert(path); |
505 | assert(suffix); | |
7410616c | 506 | assert(ret); |
a16e1123 | 507 | |
7410616c LP |
508 | if (!unit_suffix_is_valid(suffix)) |
509 | return -EINVAL; | |
5ffceb2f | 510 | |
7410616c LP |
511 | r = unit_name_path_escape(path, &p); |
512 | if (r < 0) | |
513 | return r; | |
514 | ||
515 | s = strappend(p, suffix); | |
516 | if (!s) | |
517 | return -ENOMEM; | |
518 | ||
519 | *ret = s; | |
520 | return 0; | |
a16e1123 LP |
521 | } |
522 | ||
7410616c | 523 | int unit_name_from_path_instance(const char *prefix, const char *path, const char *suffix, char **ret) { |
58d08142 | 524 | _cleanup_free_ char *p = NULL; |
7410616c LP |
525 | char *s; |
526 | int r; | |
9fff8a1f | 527 | |
35eb6b12 | 528 | assert(prefix); |
9fff8a1f LP |
529 | assert(path); |
530 | assert(suffix); | |
7410616c | 531 | assert(ret); |
9fff8a1f | 532 | |
7410616c LP |
533 | if (!unit_prefix_is_valid(prefix)) |
534 | return -EINVAL; | |
535 | ||
536 | if (!unit_suffix_is_valid(suffix)) | |
537 | return -EINVAL; | |
538 | ||
539 | r = unit_name_path_escape(path, &p); | |
540 | if (r < 0) | |
541 | return r; | |
542 | ||
543 | s = strjoin(prefix, "@", p, suffix, NULL); | |
544 | if (!s) | |
545 | return -ENOMEM; | |
9fff8a1f | 546 | |
7410616c LP |
547 | *ret = s; |
548 | return 0; | |
9fff8a1f LP |
549 | } |
550 | ||
7410616c LP |
551 | int unit_name_to_path(const char *name, char **ret) { |
552 | _cleanup_free_ char *prefix = NULL; | |
553 | int r; | |
a16e1123 LP |
554 | |
555 | assert(name); | |
556 | ||
7410616c LP |
557 | r = unit_name_to_prefix(name, &prefix); |
558 | if (r < 0) | |
559 | return r; | |
a16e1123 | 560 | |
7410616c | 561 | return unit_name_path_unescape(prefix, ret); |
9fc50704 | 562 | } |
48899192 MS |
563 | |
564 | char *unit_dbus_path_from_name(const char *name) { | |
9444b1f2 | 565 | _cleanup_free_ char *e = NULL; |
48899192 | 566 | |
35eb6b12 LP |
567 | assert(name); |
568 | ||
f01de965 | 569 | e = bus_label_escape(name); |
48899192 MS |
570 | if (!e) |
571 | return NULL; | |
572 | ||
9444b1f2 | 573 | return strappend("/org/freedesktop/systemd1/unit/", e); |
48899192 | 574 | } |
b0193f1c | 575 | |
ede3a796 LP |
576 | int unit_name_from_dbus_path(const char *path, char **name) { |
577 | const char *e; | |
578 | char *n; | |
579 | ||
580 | e = startswith(path, "/org/freedesktop/systemd1/unit/"); | |
581 | if (!e) | |
582 | return -EINVAL; | |
583 | ||
f01de965 | 584 | n = bus_label_unescape(e); |
ede3a796 LP |
585 | if (!n) |
586 | return -ENOMEM; | |
587 | ||
588 | *name = n; | |
589 | return 0; | |
590 | } | |
591 | ||
21b735e7 LP |
592 | const char* unit_dbus_interface_from_type(UnitType t) { |
593 | ||
594 | static const char *const table[_UNIT_TYPE_MAX] = { | |
595 | [UNIT_SERVICE] = "org.freedesktop.systemd1.Service", | |
596 | [UNIT_SOCKET] = "org.freedesktop.systemd1.Socket", | |
597 | [UNIT_BUSNAME] = "org.freedesktop.systemd1.BusName", | |
598 | [UNIT_TARGET] = "org.freedesktop.systemd1.Target", | |
599 | [UNIT_SNAPSHOT] = "org.freedesktop.systemd1.Snapshot", | |
600 | [UNIT_DEVICE] = "org.freedesktop.systemd1.Device", | |
601 | [UNIT_MOUNT] = "org.freedesktop.systemd1.Mount", | |
602 | [UNIT_AUTOMOUNT] = "org.freedesktop.systemd1.Automount", | |
603 | [UNIT_SWAP] = "org.freedesktop.systemd1.Swap", | |
604 | [UNIT_TIMER] = "org.freedesktop.systemd1.Timer", | |
605 | [UNIT_PATH] = "org.freedesktop.systemd1.Path", | |
606 | [UNIT_SLICE] = "org.freedesktop.systemd1.Slice", | |
607 | [UNIT_SCOPE] = "org.freedesktop.systemd1.Scope", | |
608 | }; | |
609 | ||
610 | if (t < 0) | |
611 | return NULL; | |
612 | if (t >= _UNIT_TYPE_MAX) | |
613 | return NULL; | |
614 | ||
615 | return table[t]; | |
616 | } | |
617 | ||
618 | const char *unit_dbus_interface_from_name(const char *name) { | |
619 | UnitType t; | |
620 | ||
621 | t = unit_name_to_type(name); | |
622 | if (t < 0) | |
623 | return NULL; | |
624 | ||
625 | return unit_dbus_interface_from_type(t); | |
626 | } | |
627 | ||
7410616c LP |
628 | static char *do_escape_mangle(const char *f, UnitNameMangle allow_globs, char *t) { |
629 | const char *valid_chars; | |
630 | ||
631 | assert(f); | |
632 | assert(IN_SET(allow_globs, UNIT_NAME_GLOB, UNIT_NAME_NOGLOB)); | |
633 | assert(t); | |
634 | ||
635 | /* We'll only escape the obvious characters here, to play | |
636 | * safe. */ | |
637 | ||
638 | valid_chars = allow_globs == UNIT_NAME_GLOB ? "@" VALID_CHARS "[]!-*?" : "@" VALID_CHARS; | |
639 | ||
640 | for (; *f; f++) { | |
641 | if (*f == '/') | |
642 | *(t++) = '-'; | |
643 | else if (!strchr(valid_chars, *f)) | |
644 | t = do_escape_char(*f, t); | |
645 | else | |
646 | *(t++) = *f; | |
647 | } | |
648 | ||
649 | return t; | |
650 | } | |
651 | ||
e3e0314b | 652 | /** |
5e03c6e3 ZJS |
653 | * Convert a string to a unit name. /dev/blah is converted to dev-blah.device, |
654 | * /blah/blah is converted to blah-blah.mount, anything else is left alone, | |
655 | * except that @suffix is appended if a valid unit suffix is not present. | |
656 | * | |
657 | * If @allow_globs, globs characters are preserved. Otherwise they are escaped. | |
e3e0314b | 658 | */ |
7410616c LP |
659 | int unit_name_mangle_with_suffix(const char *name, UnitNameMangle allow_globs, const char *suffix, char **ret) { |
660 | char *s, *t; | |
661 | int r; | |
b0193f1c LP |
662 | |
663 | assert(name); | |
5e03c6e3 | 664 | assert(suffix); |
7410616c | 665 | assert(ret); |
b0193f1c | 666 | |
7410616c LP |
667 | if (isempty(name)) /* We cannot mangle empty unit names to become valid, sorry. */ |
668 | return -EINVAL; | |
b0193f1c | 669 | |
7410616c LP |
670 | if (!unit_suffix_is_valid(suffix)) |
671 | return -EINVAL; | |
b0193f1c | 672 | |
7410616c LP |
673 | if (unit_name_is_valid(name, UNIT_NAME_ANY)) { |
674 | /* No mangling necessary... */ | |
675 | s = strdup(name); | |
676 | if (!s) | |
677 | return -ENOMEM; | |
1dcf6065 | 678 | |
7410616c LP |
679 | *ret = s; |
680 | return 0; | |
681 | } | |
1dcf6065 | 682 | |
7410616c LP |
683 | if (is_device_path(name)) { |
684 | r = unit_name_from_path(name, ".device", ret); | |
685 | if (r >= 0) | |
686 | return 1; | |
687 | if (r != -EINVAL) | |
688 | return r; | |
689 | } | |
1dcf6065 | 690 | |
7410616c LP |
691 | if (path_is_absolute(name)) { |
692 | r = unit_name_from_path(name, ".mount", ret); | |
693 | if (r >= 0) | |
694 | return 1; | |
695 | if (r != -EINVAL) | |
696 | return r; | |
697 | } | |
1dcf6065 | 698 | |
7410616c LP |
699 | s = new(char, strlen(name) * 4 + strlen(suffix) + 1); |
700 | if (!s) | |
701 | return -ENOMEM; | |
5f739699 | 702 | |
7410616c LP |
703 | t = do_escape_mangle(name, allow_globs, s); |
704 | *t = 0; | |
5f739699 | 705 | |
7410616c LP |
706 | if (unit_name_to_type(s) < 0) |
707 | strcpy(t, suffix); | |
5f739699 | 708 | |
7410616c LP |
709 | *ret = s; |
710 | return 1; | |
5f739699 | 711 | } |
fb6becb4 | 712 | |
93c47472 LP |
713 | int slice_build_parent_slice(const char *slice, char **ret) { |
714 | char *s, *dash; | |
2fc09a9c | 715 | int r; |
93c47472 LP |
716 | |
717 | assert(slice); | |
718 | assert(ret); | |
719 | ||
720 | if (!slice_name_is_valid(slice)) | |
721 | return -EINVAL; | |
722 | ||
723 | if (streq(slice, "-.slice")) { | |
724 | *ret = NULL; | |
725 | return 0; | |
726 | } | |
727 | ||
728 | s = strdup(slice); | |
729 | if (!s) | |
730 | return -ENOMEM; | |
731 | ||
732 | dash = strrchr(s, '-'); | |
733 | if (dash) | |
734 | strcpy(dash, ".slice"); | |
735 | else { | |
2fc09a9c | 736 | r = free_and_strdup(&s, "-.slice"); |
8e542fcd DM |
737 | if (r < 0) { |
738 | free(s); | |
2fc09a9c | 739 | return r; |
8e542fcd | 740 | } |
93c47472 LP |
741 | } |
742 | ||
743 | *ret = s; | |
744 | return 1; | |
745 | } | |
746 | ||
7410616c LP |
747 | int slice_build_subslice(const char *slice, const char*name, char **ret) { |
748 | char *subslice; | |
fb6becb4 LP |
749 | |
750 | assert(slice); | |
751 | assert(name); | |
7410616c LP |
752 | assert(ret); |
753 | ||
93c47472 | 754 | if (!slice_name_is_valid(slice)) |
7410616c LP |
755 | return -EINVAL; |
756 | ||
757 | if (!unit_prefix_is_valid(name)) | |
758 | return -EINVAL; | |
fb6becb4 LP |
759 | |
760 | if (streq(slice, "-.slice")) | |
7410616c | 761 | subslice = strappend(name, ".slice"); |
fb6becb4 LP |
762 | else { |
763 | char *e; | |
764 | ||
93c47472 | 765 | assert_se(e = endswith(slice, ".slice")); |
fb6becb4 | 766 | |
7410616c LP |
767 | subslice = new(char, (e - slice) + 1 + strlen(name) + 6 + 1); |
768 | if (!subslice) | |
fb6becb4 LP |
769 | return -ENOMEM; |
770 | ||
7410616c | 771 | stpcpy(stpcpy(stpcpy(mempcpy(subslice, slice, e - slice), "-"), name), ".slice"); |
fb6becb4 LP |
772 | } |
773 | ||
7410616c | 774 | *ret = subslice; |
fb6becb4 LP |
775 | return 0; |
776 | } | |
cb87a73b | 777 | |
93c47472 LP |
778 | bool slice_name_is_valid(const char *name) { |
779 | const char *p, *e; | |
780 | bool dash = false; | |
781 | ||
782 | if (!unit_name_is_valid(name, UNIT_NAME_PLAIN)) | |
783 | return false; | |
784 | ||
785 | if (streq(name, "-.slice")) | |
786 | return true; | |
787 | ||
788 | e = endswith(name, ".slice"); | |
789 | if (!e) | |
790 | return false; | |
791 | ||
792 | for (p = name; p < e; p++) { | |
793 | ||
794 | if (*p == '-') { | |
795 | ||
796 | /* Don't allow initial dash */ | |
797 | if (p == name) | |
798 | return false; | |
799 | ||
800 | /* Don't allow multiple dashes */ | |
801 | if (dash) | |
802 | return false; | |
803 | ||
804 | dash = true; | |
805 | } else | |
806 | dash = false; | |
807 | } | |
808 | ||
809 | /* Don't allow trailing hash */ | |
810 | if (dash) | |
811 | return false; | |
812 | ||
813 | return true; | |
814 | } | |
815 | ||
7410616c LP |
816 | static const char* const unit_type_table[_UNIT_TYPE_MAX] = { |
817 | [UNIT_SERVICE] = "service", | |
818 | [UNIT_SOCKET] = "socket", | |
819 | [UNIT_BUSNAME] = "busname", | |
820 | [UNIT_TARGET] = "target", | |
821 | [UNIT_SNAPSHOT] = "snapshot", | |
822 | [UNIT_DEVICE] = "device", | |
823 | [UNIT_MOUNT] = "mount", | |
824 | [UNIT_AUTOMOUNT] = "automount", | |
825 | [UNIT_SWAP] = "swap", | |
826 | [UNIT_TIMER] = "timer", | |
827 | [UNIT_PATH] = "path", | |
828 | [UNIT_SLICE] = "slice", | |
21b735e7 | 829 | [UNIT_SCOPE] = "scope", |
7410616c LP |
830 | }; |
831 | ||
832 | DEFINE_STRING_TABLE_LOOKUP(unit_type, UnitType); | |
833 | ||
834 | static const char* const unit_load_state_table[_UNIT_LOAD_STATE_MAX] = { | |
835 | [UNIT_STUB] = "stub", | |
836 | [UNIT_LOADED] = "loaded", | |
837 | [UNIT_NOT_FOUND] = "not-found", | |
838 | [UNIT_ERROR] = "error", | |
839 | [UNIT_MERGED] = "merged", | |
840 | [UNIT_MASKED] = "masked" | |
841 | }; | |
842 | ||
843 | DEFINE_STRING_TABLE_LOOKUP(unit_load_state, UnitLoadState); | |
844 | ||
978c8b63 ZJS |
845 | static const char* const unit_active_state_table[_UNIT_ACTIVE_STATE_MAX] = { |
846 | [UNIT_ACTIVE] = "active", | |
847 | [UNIT_RELOADING] = "reloading", | |
848 | [UNIT_INACTIVE] = "inactive", | |
849 | [UNIT_FAILED] = "failed", | |
850 | [UNIT_ACTIVATING] = "activating", | |
851 | [UNIT_DEACTIVATING] = "deactivating" | |
852 | }; | |
853 | ||
854 | DEFINE_STRING_TABLE_LOOKUP(unit_active_state, UnitActiveState); | |
855 | ||
7e55de3b ZJS |
856 | static const char* const automount_state_table[_AUTOMOUNT_STATE_MAX] = { |
857 | [AUTOMOUNT_DEAD] = "dead", | |
858 | [AUTOMOUNT_WAITING] = "waiting", | |
859 | [AUTOMOUNT_RUNNING] = "running", | |
860 | [AUTOMOUNT_FAILED] = "failed" | |
861 | }; | |
862 | ||
863 | DEFINE_STRING_TABLE_LOOKUP(automount_state, AutomountState); | |
864 | ||
865 | static const char* const busname_state_table[_BUSNAME_STATE_MAX] = { | |
866 | [BUSNAME_DEAD] = "dead", | |
867 | [BUSNAME_MAKING] = "making", | |
868 | [BUSNAME_REGISTERED] = "registered", | |
869 | [BUSNAME_LISTENING] = "listening", | |
870 | [BUSNAME_RUNNING] = "running", | |
871 | [BUSNAME_SIGTERM] = "sigterm", | |
872 | [BUSNAME_SIGKILL] = "sigkill", | |
873 | [BUSNAME_FAILED] = "failed", | |
874 | }; | |
875 | ||
876 | DEFINE_STRING_TABLE_LOOKUP(busname_state, BusNameState); | |
877 | ||
878 | static const char* const device_state_table[_DEVICE_STATE_MAX] = { | |
879 | [DEVICE_DEAD] = "dead", | |
880 | [DEVICE_TENTATIVE] = "tentative", | |
881 | [DEVICE_PLUGGED] = "plugged", | |
882 | }; | |
883 | ||
884 | DEFINE_STRING_TABLE_LOOKUP(device_state, DeviceState); | |
885 | ||
886 | static const char* const mount_state_table[_MOUNT_STATE_MAX] = { | |
887 | [MOUNT_DEAD] = "dead", | |
888 | [MOUNT_MOUNTING] = "mounting", | |
889 | [MOUNT_MOUNTING_DONE] = "mounting-done", | |
890 | [MOUNT_MOUNTED] = "mounted", | |
891 | [MOUNT_REMOUNTING] = "remounting", | |
892 | [MOUNT_UNMOUNTING] = "unmounting", | |
893 | [MOUNT_MOUNTING_SIGTERM] = "mounting-sigterm", | |
894 | [MOUNT_MOUNTING_SIGKILL] = "mounting-sigkill", | |
895 | [MOUNT_REMOUNTING_SIGTERM] = "remounting-sigterm", | |
896 | [MOUNT_REMOUNTING_SIGKILL] = "remounting-sigkill", | |
897 | [MOUNT_UNMOUNTING_SIGTERM] = "unmounting-sigterm", | |
898 | [MOUNT_UNMOUNTING_SIGKILL] = "unmounting-sigkill", | |
899 | [MOUNT_FAILED] = "failed" | |
900 | }; | |
901 | ||
902 | DEFINE_STRING_TABLE_LOOKUP(mount_state, MountState); | |
903 | ||
904 | static const char* const path_state_table[_PATH_STATE_MAX] = { | |
905 | [PATH_DEAD] = "dead", | |
906 | [PATH_WAITING] = "waiting", | |
907 | [PATH_RUNNING] = "running", | |
908 | [PATH_FAILED] = "failed" | |
909 | }; | |
910 | ||
911 | DEFINE_STRING_TABLE_LOOKUP(path_state, PathState); | |
912 | ||
913 | static const char* const scope_state_table[_SCOPE_STATE_MAX] = { | |
914 | [SCOPE_DEAD] = "dead", | |
915 | [SCOPE_RUNNING] = "running", | |
916 | [SCOPE_ABANDONED] = "abandoned", | |
917 | [SCOPE_STOP_SIGTERM] = "stop-sigterm", | |
918 | [SCOPE_STOP_SIGKILL] = "stop-sigkill", | |
919 | [SCOPE_FAILED] = "failed", | |
920 | }; | |
921 | ||
922 | DEFINE_STRING_TABLE_LOOKUP(scope_state, ScopeState); | |
923 | ||
924 | static const char* const service_state_table[_SERVICE_STATE_MAX] = { | |
925 | [SERVICE_DEAD] = "dead", | |
926 | [SERVICE_START_PRE] = "start-pre", | |
927 | [SERVICE_START] = "start", | |
928 | [SERVICE_START_POST] = "start-post", | |
929 | [SERVICE_RUNNING] = "running", | |
930 | [SERVICE_EXITED] = "exited", | |
931 | [SERVICE_RELOAD] = "reload", | |
932 | [SERVICE_STOP] = "stop", | |
933 | [SERVICE_STOP_SIGABRT] = "stop-sigabrt", | |
934 | [SERVICE_STOP_SIGTERM] = "stop-sigterm", | |
935 | [SERVICE_STOP_SIGKILL] = "stop-sigkill", | |
936 | [SERVICE_STOP_POST] = "stop-post", | |
937 | [SERVICE_FINAL_SIGTERM] = "final-sigterm", | |
938 | [SERVICE_FINAL_SIGKILL] = "final-sigkill", | |
939 | [SERVICE_FAILED] = "failed", | |
940 | [SERVICE_AUTO_RESTART] = "auto-restart", | |
941 | }; | |
942 | ||
943 | DEFINE_STRING_TABLE_LOOKUP(service_state, ServiceState); | |
944 | ||
945 | static const char* const slice_state_table[_SLICE_STATE_MAX] = { | |
946 | [SLICE_DEAD] = "dead", | |
947 | [SLICE_ACTIVE] = "active" | |
948 | }; | |
949 | ||
950 | DEFINE_STRING_TABLE_LOOKUP(slice_state, SliceState); | |
951 | ||
952 | static const char* const snapshot_state_table[_SNAPSHOT_STATE_MAX] = { | |
953 | [SNAPSHOT_DEAD] = "dead", | |
954 | [SNAPSHOT_ACTIVE] = "active" | |
955 | }; | |
956 | ||
957 | DEFINE_STRING_TABLE_LOOKUP(snapshot_state, SnapshotState); | |
958 | ||
959 | static const char* const socket_state_table[_SOCKET_STATE_MAX] = { | |
960 | [SOCKET_DEAD] = "dead", | |
961 | [SOCKET_START_PRE] = "start-pre", | |
962 | [SOCKET_START_CHOWN] = "start-chown", | |
963 | [SOCKET_START_POST] = "start-post", | |
964 | [SOCKET_LISTENING] = "listening", | |
965 | [SOCKET_RUNNING] = "running", | |
966 | [SOCKET_STOP_PRE] = "stop-pre", | |
967 | [SOCKET_STOP_PRE_SIGTERM] = "stop-pre-sigterm", | |
968 | [SOCKET_STOP_PRE_SIGKILL] = "stop-pre-sigkill", | |
969 | [SOCKET_STOP_POST] = "stop-post", | |
970 | [SOCKET_FINAL_SIGTERM] = "final-sigterm", | |
971 | [SOCKET_FINAL_SIGKILL] = "final-sigkill", | |
972 | [SOCKET_FAILED] = "failed" | |
973 | }; | |
974 | ||
975 | DEFINE_STRING_TABLE_LOOKUP(socket_state, SocketState); | |
976 | ||
977 | static const char* const swap_state_table[_SWAP_STATE_MAX] = { | |
978 | [SWAP_DEAD] = "dead", | |
979 | [SWAP_ACTIVATING] = "activating", | |
980 | [SWAP_ACTIVATING_DONE] = "activating-done", | |
981 | [SWAP_ACTIVE] = "active", | |
982 | [SWAP_DEACTIVATING] = "deactivating", | |
983 | [SWAP_ACTIVATING_SIGTERM] = "activating-sigterm", | |
984 | [SWAP_ACTIVATING_SIGKILL] = "activating-sigkill", | |
985 | [SWAP_DEACTIVATING_SIGTERM] = "deactivating-sigterm", | |
986 | [SWAP_DEACTIVATING_SIGKILL] = "deactivating-sigkill", | |
987 | [SWAP_FAILED] = "failed" | |
988 | }; | |
989 | ||
990 | DEFINE_STRING_TABLE_LOOKUP(swap_state, SwapState); | |
991 | ||
992 | static const char* const target_state_table[_TARGET_STATE_MAX] = { | |
993 | [TARGET_DEAD] = "dead", | |
994 | [TARGET_ACTIVE] = "active" | |
995 | }; | |
996 | ||
997 | DEFINE_STRING_TABLE_LOOKUP(target_state, TargetState); | |
998 | ||
999 | static const char* const timer_state_table[_TIMER_STATE_MAX] = { | |
1000 | [TIMER_DEAD] = "dead", | |
1001 | [TIMER_WAITING] = "waiting", | |
1002 | [TIMER_RUNNING] = "running", | |
1003 | [TIMER_ELAPSED] = "elapsed", | |
1004 | [TIMER_FAILED] = "failed" | |
1005 | }; | |
1006 | ||
1007 | DEFINE_STRING_TABLE_LOOKUP(timer_state, TimerState); | |
1008 | ||
cb87a73b LN |
1009 | static const char* const unit_dependency_table[_UNIT_DEPENDENCY_MAX] = { |
1010 | [UNIT_REQUIRES] = "Requires", | |
1011 | [UNIT_REQUIRES_OVERRIDABLE] = "RequiresOverridable", | |
1012 | [UNIT_REQUISITE] = "Requisite", | |
1013 | [UNIT_REQUISITE_OVERRIDABLE] = "RequisiteOverridable", | |
1014 | [UNIT_WANTS] = "Wants", | |
1015 | [UNIT_BINDS_TO] = "BindsTo", | |
1016 | [UNIT_PART_OF] = "PartOf", | |
1017 | [UNIT_REQUIRED_BY] = "RequiredBy", | |
1018 | [UNIT_REQUIRED_BY_OVERRIDABLE] = "RequiredByOverridable", | |
be7d9ff7 LP |
1019 | [UNIT_REQUISITE_OF] = "RequisiteOf", |
1020 | [UNIT_REQUISITE_OF_OVERRIDABLE] = "RequisiteOfOverridable", | |
cb87a73b LN |
1021 | [UNIT_WANTED_BY] = "WantedBy", |
1022 | [UNIT_BOUND_BY] = "BoundBy", | |
1023 | [UNIT_CONSISTS_OF] = "ConsistsOf", | |
1024 | [UNIT_CONFLICTS] = "Conflicts", | |
1025 | [UNIT_CONFLICTED_BY] = "ConflictedBy", | |
1026 | [UNIT_BEFORE] = "Before", | |
1027 | [UNIT_AFTER] = "After", | |
1028 | [UNIT_ON_FAILURE] = "OnFailure", | |
1029 | [UNIT_TRIGGERS] = "Triggers", | |
1030 | [UNIT_TRIGGERED_BY] = "TriggeredBy", | |
1031 | [UNIT_PROPAGATES_RELOAD_TO] = "PropagatesReloadTo", | |
1032 | [UNIT_RELOAD_PROPAGATED_FROM] = "ReloadPropagatedFrom", | |
1033 | [UNIT_JOINS_NAMESPACE_OF] = "JoinsNamespaceOf", | |
1034 | [UNIT_REFERENCES] = "References", | |
1035 | [UNIT_REFERENCED_BY] = "ReferencedBy", | |
1036 | }; | |
1037 | ||
1038 | DEFINE_STRING_TABLE_LOOKUP(unit_dependency, UnitDependency); |