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Commit | Line | Data |
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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
95ed3294 TA |
2 | |
3 | #include <errno.h> | |
4 | #include <stdio.h> | |
5 | #include <unistd.h> | |
6 | ||
b5efdb8a | 7 | #include "alloc-util.h" |
c279613f | 8 | #include "dirent-util.h" |
41e2036e | 9 | #include "exit-status.h" |
3ffd4af2 | 10 | #include "fd-util.h" |
c279613f | 11 | #include "fileio.h" |
7f0cc637 | 12 | #include "generator.h" |
07630cea | 13 | #include "hashmap.h" |
8fcde012 | 14 | #include "hexdecoct.h" |
07630cea LP |
15 | #include "install.h" |
16 | #include "log.h" | |
95ed3294 | 17 | #include "mkdir.h" |
95ed3294 | 18 | #include "path-lookup.h" |
07630cea | 19 | #include "path-util.h" |
f2341e0a | 20 | #include "set.h" |
07630cea | 21 | #include "special.h" |
98bad05e | 22 | #include "specifier.h" |
8fcde012 | 23 | #include "stat-util.h" |
07630cea LP |
24 | #include "string-util.h" |
25 | #include "strv.h" | |
26 | #include "unit-name.h" | |
27 | #include "util.h" | |
95ed3294 | 28 | |
95ed3294 TA |
29 | static const struct { |
30 | const char *path; | |
31 | const char *target; | |
95ed3294 TA |
32 | } rcnd_table[] = { |
33 | /* Standard SysV runlevels for start-up */ | |
788d2b08 LP |
34 | { "rc1.d", SPECIAL_RESCUE_TARGET }, |
35 | { "rc2.d", SPECIAL_MULTI_USER_TARGET }, | |
36 | { "rc3.d", SPECIAL_MULTI_USER_TARGET }, | |
37 | { "rc4.d", SPECIAL_MULTI_USER_TARGET }, | |
38 | { "rc5.d", SPECIAL_GRAPHICAL_TARGET }, | |
39 | ||
40 | /* We ignore the SysV runlevels for shutdown here, as SysV services get default dependencies anyway, and that | |
41 | * means they are shut down anyway at system power off if running. */ | |
95ed3294 TA |
42 | }; |
43 | ||
dd422d1e | 44 | static const char *arg_dest = "/tmp"; |
8fba1c8d | 45 | |
95ed3294 TA |
46 | typedef struct SysvStub { |
47 | char *name; | |
48 | char *path; | |
49 | char *description; | |
50 | int sysv_start_priority; | |
51 | char *pid_file; | |
52 | char **before; | |
53 | char **after; | |
54 | char **wants; | |
260ad50f | 55 | char **wanted_by; |
95ed3294 TA |
56 | bool has_lsb; |
57 | bool reload; | |
c279613f | 58 | bool loaded; |
95ed3294 TA |
59 | } SysvStub; |
60 | ||
8fba1c8d | 61 | static void free_sysvstub(SysvStub *s) { |
c279613f LP |
62 | if (!s) |
63 | return; | |
64 | ||
8fba1c8d ZJS |
65 | free(s->name); |
66 | free(s->path); | |
67 | free(s->description); | |
68 | free(s->pid_file); | |
69 | strv_free(s->before); | |
70 | strv_free(s->after); | |
71 | strv_free(s->wants); | |
72 | strv_free(s->wanted_by); | |
8fba1c8d ZJS |
73 | free(s); |
74 | } | |
75 | ||
76 | DEFINE_TRIVIAL_CLEANUP_FUNC(SysvStub*, free_sysvstub); | |
77 | ||
78 | static void free_sysvstub_hashmapp(Hashmap **h) { | |
224b0e7a | 79 | hashmap_free_with_destructor(*h, free_sysvstub); |
8fba1c8d | 80 | } |
95ed3294 | 81 | |
b7e71846 | 82 | static int add_alias(const char *service, const char *alias) { |
c279613f | 83 | const char *link; |
b7e71846 MB |
84 | int r; |
85 | ||
86 | assert(service); | |
87 | assert(alias); | |
88 | ||
c279613f | 89 | link = strjoina(arg_dest, "/", alias); |
b7e71846 MB |
90 | |
91 | r = symlink(service, link); | |
92 | if (r < 0) { | |
93 | if (errno == EEXIST) | |
94 | return 0; | |
c279613f | 95 | |
b7e71846 MB |
96 | return -errno; |
97 | } | |
98 | ||
99 | return 1; | |
100 | } | |
101 | ||
95ed3294 | 102 | static int generate_unit_file(SysvStub *s) { |
98bad05e | 103 | _cleanup_free_ char *path_escaped = NULL; |
95ed3294 | 104 | _cleanup_fclose_ FILE *f = NULL; |
c279613f LP |
105 | const char *unit; |
106 | char **p; | |
95ed3294 TA |
107 | int r; |
108 | ||
c279613f LP |
109 | assert(s); |
110 | ||
111 | if (!s->loaded) | |
112 | return 0; | |
113 | ||
98bad05e LP |
114 | path_escaped = specifier_escape(s->path); |
115 | if (!path_escaped) | |
116 | return log_oom(); | |
117 | ||
c279613f LP |
118 | unit = strjoina(arg_dest, "/", s->name); |
119 | ||
77354c7e MP |
120 | /* We might already have a symlink with the same name from a Provides:, |
121 | * or from backup files like /etc/init.d/foo.bak. Real scripts always win, | |
122 | * so remove an existing link */ | |
4e558983 | 123 | if (is_symlink(unit) > 0) { |
c279613f | 124 | log_warning("Overwriting existing symlink %s with real service.", unit); |
9993ef2e | 125 | (void) unlink(unit); |
77354c7e MP |
126 | } |
127 | ||
95ed3294 | 128 | f = fopen(unit, "wxe"); |
4a62c710 MS |
129 | if (!f) |
130 | return log_error_errno(errno, "Failed to create unit file %s: %m", unit); | |
95ed3294 TA |
131 | |
132 | fprintf(f, | |
133 | "# Automatically generated by systemd-sysv-generator\n\n" | |
134 | "[Unit]\n" | |
aad0a2c8 | 135 | "Documentation=man:systemd-sysv-generator(8)\n" |
c279613f | 136 | "SourcePath=%s\n", |
98bad05e LP |
137 | path_escaped); |
138 | ||
139 | if (s->description) { | |
140 | _cleanup_free_ char *t; | |
c279613f | 141 | |
98bad05e LP |
142 | t = specifier_escape(s->description); |
143 | if (!t) | |
144 | return log_oom(); | |
145 | ||
146 | fprintf(f, "Description=%s\n", t); | |
147 | } | |
95ed3294 | 148 | |
c584ffc0 LN |
149 | STRV_FOREACH(p, s->before) |
150 | fprintf(f, "Before=%s\n", *p); | |
151 | STRV_FOREACH(p, s->after) | |
152 | fprintf(f, "After=%s\n", *p); | |
153 | STRV_FOREACH(p, s->wants) | |
154 | fprintf(f, "Wants=%s\n", *p); | |
95ed3294 TA |
155 | |
156 | fprintf(f, | |
157 | "\n[Service]\n" | |
158 | "Type=forking\n" | |
159 | "Restart=no\n" | |
160 | "TimeoutSec=5min\n" | |
161 | "IgnoreSIGPIPE=no\n" | |
162 | "KillMode=process\n" | |
163 | "GuessMainPID=no\n" | |
164 | "RemainAfterExit=%s\n", | |
165 | yes_no(!s->pid_file)); | |
166 | ||
98bad05e LP |
167 | if (s->pid_file) { |
168 | _cleanup_free_ char *t; | |
169 | ||
170 | t = specifier_escape(s->pid_file); | |
171 | if (!t) | |
172 | return log_oom(); | |
173 | ||
174 | fprintf(f, "PIDFile=%s\n", t); | |
175 | } | |
95ed3294 | 176 | |
41e2036e LP |
177 | /* Consider two special LSB exit codes a clean exit */ |
178 | if (s->has_lsb) | |
179 | fprintf(f, | |
180 | "SuccessExitStatus=%i %i\n", | |
181 | EXIT_NOTINSTALLED, | |
182 | EXIT_NOTCONFIGURED); | |
183 | ||
95ed3294 TA |
184 | fprintf(f, |
185 | "ExecStart=%s start\n" | |
186 | "ExecStop=%s stop\n", | |
98bad05e | 187 | path_escaped, path_escaped); |
95ed3294 TA |
188 | |
189 | if (s->reload) | |
98bad05e | 190 | fprintf(f, "ExecReload=%s reload\n", path_escaped); |
95ed3294 | 191 | |
c279613f LP |
192 | r = fflush_and_check(f); |
193 | if (r < 0) | |
194 | return log_error_errno(r, "Failed to write unit %s: %m", unit); | |
195 | ||
7f0cc637 ZJS |
196 | STRV_FOREACH(p, s->wanted_by) |
197 | (void) generator_add_symlink(arg_dest, *p, "wants", s->name); | |
95ed3294 | 198 | |
c279613f | 199 | return 1; |
95ed3294 TA |
200 | } |
201 | ||
202 | static bool usage_contains_reload(const char *line) { | |
203 | return (strcasestr(line, "{reload|") || | |
204 | strcasestr(line, "{reload}") || | |
205 | strcasestr(line, "{reload\"") || | |
206 | strcasestr(line, "|reload|") || | |
207 | strcasestr(line, "|reload}") || | |
208 | strcasestr(line, "|reload\"")); | |
209 | } | |
210 | ||
211 | static char *sysv_translate_name(const char *name) { | |
0b2ec8a3 DH |
212 | _cleanup_free_ char *c = NULL; |
213 | char *res; | |
95ed3294 | 214 | |
264581a2 FS |
215 | c = strdup(name); |
216 | if (!c) | |
0b2ec8a3 | 217 | return NULL; |
95ed3294 | 218 | |
0b2ec8a3 DH |
219 | res = endswith(c, ".sh"); |
220 | if (res) | |
221 | *res = 0; | |
95ed3294 | 222 | |
37cbc1d5 | 223 | if (unit_name_mangle(c, 0, &res) < 0) |
0b2ec8a3 DH |
224 | return NULL; |
225 | ||
226 | return res; | |
95ed3294 TA |
227 | } |
228 | ||
7532e6d4 | 229 | static int sysv_translate_facility(SysvStub *s, unsigned line, const char *name, char **ret) { |
95ed3294 TA |
230 | |
231 | /* We silently ignore the $ prefix here. According to the LSB | |
232 | * spec it simply indicates whether something is a | |
233 | * standardized name or a distribution-specific one. Since we | |
234 | * just follow what already exists and do not introduce new | |
235 | * uses or names we don't care who introduced a new name. */ | |
236 | ||
237 | static const char * const table[] = { | |
238 | /* LSB defined facilities */ | |
239 | "local_fs", NULL, | |
240 | "network", SPECIAL_NETWORK_ONLINE_TARGET, | |
241 | "named", SPECIAL_NSS_LOOKUP_TARGET, | |
242 | "portmap", SPECIAL_RPCBIND_TARGET, | |
243 | "remote_fs", SPECIAL_REMOTE_FS_TARGET, | |
244 | "syslog", NULL, | |
245 | "time", SPECIAL_TIME_SYNC_TARGET, | |
246 | }; | |
247 | ||
7532e6d4 | 248 | const char *filename; |
c279613f | 249 | char *filename_no_sh, *e, *m; |
95ed3294 | 250 | const char *n; |
4e488555 | 251 | unsigned i; |
c279613f | 252 | int r; |
95ed3294 TA |
253 | |
254 | assert(name); | |
7532e6d4 | 255 | assert(s); |
c279613f | 256 | assert(ret); |
95ed3294 | 257 | |
7532e6d4 FS |
258 | filename = basename(s->path); |
259 | ||
95ed3294 TA |
260 | n = *name == '$' ? name + 1 : name; |
261 | ||
262 | for (i = 0; i < ELEMENTSOF(table); i += 2) { | |
95ed3294 TA |
263 | if (!streq(table[i], n)) |
264 | continue; | |
265 | ||
e932f540 LP |
266 | if (!table[i+1]) { |
267 | *ret = NULL; | |
95ed3294 | 268 | return 0; |
e932f540 | 269 | } |
95ed3294 | 270 | |
c279613f LP |
271 | m = strdup(table[i+1]); |
272 | if (!m) | |
95ed3294 TA |
273 | return log_oom(); |
274 | ||
c279613f LP |
275 | *ret = m; |
276 | return 1; | |
277 | } | |
278 | ||
279 | /* If we don't know this name, fallback heuristics to figure | |
280 | * out whether something is a target or a service alias. */ | |
281 | ||
282 | /* Facilities starting with $ are most likely targets */ | |
283 | if (*name == '$') { | |
284 | r = unit_name_build(n, NULL, ".target", ret); | |
285 | if (r < 0) | |
7532e6d4 | 286 | return log_error_errno(r, "[%s:%u] Could not build name for facility %s: %m", s->path, line, name); |
c279613f | 287 | |
e932f540 | 288 | return 1; |
95ed3294 TA |
289 | } |
290 | ||
c279613f | 291 | /* Strip ".sh" suffix from file name for comparison */ |
4e488555 | 292 | filename_no_sh = strdupa(filename); |
40780877 | 293 | e = endswith(filename_no_sh, ".sh"); |
3315f085 | 294 | if (e) { |
4e488555 | 295 | *e = '\0'; |
3315f085 LP |
296 | filename = filename_no_sh; |
297 | } | |
29e0e6d8 | 298 | |
c279613f | 299 | /* Names equaling the file name of the services are redundant */ |
e932f540 LP |
300 | if (streq_ptr(n, filename)) { |
301 | *ret = NULL; | |
95ed3294 | 302 | return 0; |
e932f540 | 303 | } |
95ed3294 | 304 | |
c279613f LP |
305 | /* Everything else we assume to be normal service names */ |
306 | m = sysv_translate_name(n); | |
307 | if (!m) | |
308 | return log_oom(); | |
95ed3294 | 309 | |
c279613f | 310 | *ret = m; |
95ed3294 TA |
311 | return 1; |
312 | } | |
313 | ||
1e2fee5f | 314 | static int handle_provides(SysvStub *s, unsigned line, const char *full_text, const char *text) { |
1e2fee5f ZJS |
315 | int r; |
316 | ||
c279613f LP |
317 | assert(s); |
318 | assert(full_text); | |
319 | assert(text); | |
1e2fee5f | 320 | |
c279613f LP |
321 | for (;;) { |
322 | _cleanup_free_ char *word = NULL, *m = NULL; | |
1e2fee5f | 323 | |
c279613f | 324 | r = extract_first_word(&text, &word, NULL, EXTRACT_QUOTES|EXTRACT_RELAX); |
1e2fee5f | 325 | if (r < 0) |
7532e6d4 | 326 | return log_error_errno(r, "[%s:%u] Failed to parse word from provides string: %m", s->path, line); |
1e2fee5f | 327 | if (r == 0) |
c279613f LP |
328 | break; |
329 | ||
7532e6d4 | 330 | r = sysv_translate_facility(s, line, word, &m); |
c279613f | 331 | if (r <= 0) /* continue on error */ |
1e2fee5f ZJS |
332 | continue; |
333 | ||
c279613f LP |
334 | switch (unit_name_to_type(m)) { |
335 | ||
336 | case UNIT_SERVICE: | |
1e2fee5f ZJS |
337 | log_debug("Adding Provides: alias '%s' for '%s'", m, s->name); |
338 | r = add_alias(s->name, m); | |
e987f2a8 | 339 | if (r < 0) |
f2341e0a | 340 | log_warning_errno(r, "[%s:%u] Failed to add LSB Provides name %s, ignoring: %m", s->path, line, m); |
c279613f LP |
341 | break; |
342 | ||
343 | case UNIT_TARGET: | |
344 | ||
1e2fee5f ZJS |
345 | /* NB: SysV targets which are provided by a |
346 | * service are pulled in by the services, as | |
347 | * an indication that the generic service is | |
348 | * now available. This is strictly one-way. | |
349 | * The targets do NOT pull in SysV services! */ | |
c279613f | 350 | |
1e2fee5f ZJS |
351 | r = strv_extend(&s->before, m); |
352 | if (r < 0) | |
353 | return log_oom(); | |
c279613f | 354 | |
1e2fee5f ZJS |
355 | r = strv_extend(&s->wants, m); |
356 | if (r < 0) | |
357 | return log_oom(); | |
c279613f | 358 | |
1e2fee5f ZJS |
359 | if (streq(m, SPECIAL_NETWORK_ONLINE_TARGET)) { |
360 | r = strv_extend(&s->before, SPECIAL_NETWORK_TARGET); | |
361 | if (r < 0) | |
362 | return log_oom(); | |
bd9ad4ff LN |
363 | r = strv_extend(&s->wants, SPECIAL_NETWORK_TARGET); |
364 | if (r < 0) | |
365 | return log_oom(); | |
1e2fee5f | 366 | } |
c279613f LP |
367 | |
368 | break; | |
369 | ||
370 | case _UNIT_TYPE_INVALID: | |
2c09a745 | 371 | log_warning("Unit name '%s' is invalid", m); |
c279613f LP |
372 | break; |
373 | ||
374 | default: | |
2c09a745 | 375 | log_warning("Unknown unit type for unit '%s'", m); |
c279613f | 376 | } |
1e2fee5f | 377 | } |
c279613f | 378 | |
1e2fee5f ZJS |
379 | return 0; |
380 | } | |
381 | ||
382 | static int handle_dependencies(SysvStub *s, unsigned line, const char *full_text, const char *text) { | |
1e2fee5f ZJS |
383 | int r; |
384 | ||
c279613f LP |
385 | assert(s); |
386 | assert(full_text); | |
387 | assert(text); | |
1e2fee5f | 388 | |
c279613f LP |
389 | for (;;) { |
390 | _cleanup_free_ char *word = NULL, *m = NULL; | |
391 | bool is_before; | |
1e2fee5f | 392 | |
c279613f LP |
393 | r = extract_first_word(&text, &word, NULL, EXTRACT_QUOTES|EXTRACT_RELAX); |
394 | if (r < 0) | |
7532e6d4 | 395 | return log_error_errno(r, "[%s:%u] Failed to parse word from provides string: %m", s->path, line); |
1e2fee5f | 396 | if (r == 0) |
c279613f LP |
397 | break; |
398 | ||
7532e6d4 | 399 | r = sysv_translate_facility(s, line, word, &m); |
c279613f | 400 | if (r <= 0) /* continue on error */ |
1e2fee5f ZJS |
401 | continue; |
402 | ||
403 | is_before = startswith_no_case(full_text, "X-Start-Before:"); | |
404 | ||
405 | if (streq(m, SPECIAL_NETWORK_ONLINE_TARGET) && !is_before) { | |
406 | /* the network-online target is special, as it needs to be actively pulled in */ | |
407 | r = strv_extend(&s->after, m); | |
408 | if (r < 0) | |
409 | return log_oom(); | |
c279613f | 410 | |
1e2fee5f | 411 | r = strv_extend(&s->wants, m); |
e987f2a8 | 412 | } else |
1e2fee5f | 413 | r = strv_extend(is_before ? &s->before : &s->after, m); |
1e2fee5f | 414 | if (r < 0) |
e987f2a8 | 415 | return log_oom(); |
1e2fee5f | 416 | } |
c279613f | 417 | |
1e2fee5f ZJS |
418 | return 0; |
419 | } | |
420 | ||
95ed3294 TA |
421 | static int load_sysv(SysvStub *s) { |
422 | _cleanup_fclose_ FILE *f; | |
423 | unsigned line = 0; | |
424 | int r; | |
425 | enum { | |
426 | NORMAL, | |
427 | DESCRIPTION, | |
428 | LSB, | |
429 | LSB_DESCRIPTION, | |
430 | USAGE_CONTINUATION | |
431 | } state = NORMAL; | |
432 | _cleanup_free_ char *short_description = NULL, *long_description = NULL, *chkconfig_description = NULL; | |
433 | char *description; | |
434 | bool supports_reload = false; | |
435 | ||
436 | assert(s); | |
437 | ||
438 | f = fopen(s->path, "re"); | |
c279613f LP |
439 | if (!f) { |
440 | if (errno == ENOENT) | |
441 | return 0; | |
95ed3294 | 442 | |
c279613f LP |
443 | return log_error_errno(errno, "Failed to open %s: %m", s->path); |
444 | } | |
77354c7e | 445 | |
c279613f | 446 | log_debug("Loading SysV script %s", s->path); |
95ed3294 | 447 | |
e393eff6 LP |
448 | for (;;) { |
449 | _cleanup_free_ char *l = NULL; | |
c279613f | 450 | char *t; |
95ed3294 | 451 | |
e393eff6 LP |
452 | r = read_line(f, LONG_LINE_MAX, &l); |
453 | if (r < 0) | |
454 | return log_error_errno(r, "Failed to read configuration file '%s': %m", s->path); | |
455 | if (r == 0) | |
456 | break; | |
457 | ||
95ed3294 TA |
458 | line++; |
459 | ||
460 | t = strstrip(l); | |
461 | if (*t != '#') { | |
462 | /* Try to figure out whether this init script supports | |
463 | * the reload operation. This heuristic looks for | |
464 | * "Usage" lines which include the reload option. */ | |
e393eff6 | 465 | if (state == USAGE_CONTINUATION || |
95ed3294 TA |
466 | (state == NORMAL && strcasestr(t, "usage"))) { |
467 | if (usage_contains_reload(t)) { | |
468 | supports_reload = true; | |
469 | state = NORMAL; | |
470 | } else if (t[strlen(t)-1] == '\\') | |
471 | state = USAGE_CONTINUATION; | |
472 | else | |
473 | state = NORMAL; | |
474 | } | |
475 | ||
476 | continue; | |
477 | } | |
478 | ||
479 | if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) { | |
480 | state = LSB; | |
481 | s->has_lsb = true; | |
482 | continue; | |
483 | } | |
484 | ||
3742095b | 485 | if (IN_SET(state, LSB_DESCRIPTION, LSB) && streq(t, "### END INIT INFO")) { |
95ed3294 TA |
486 | state = NORMAL; |
487 | continue; | |
488 | } | |
489 | ||
490 | t++; | |
491 | t += strspn(t, WHITESPACE); | |
492 | ||
493 | if (state == NORMAL) { | |
494 | ||
495 | /* Try to parse Red Hat style description */ | |
496 | ||
497 | if (startswith_no_case(t, "description:")) { | |
498 | ||
c279613f | 499 | size_t k; |
859fdd1e | 500 | const char *j; |
95ed3294 | 501 | |
c279613f LP |
502 | k = strlen(t); |
503 | if (k > 0 && t[k-1] == '\\') { | |
95ed3294 TA |
504 | state = DESCRIPTION; |
505 | t[k-1] = 0; | |
506 | } | |
507 | ||
3c6f7c34 | 508 | j = empty_to_null(strstrip(t+12)); |
95ed3294 | 509 | |
c279613f LP |
510 | r = free_and_strdup(&chkconfig_description, j); |
511 | if (r < 0) | |
512 | return log_oom(); | |
95ed3294 TA |
513 | |
514 | } else if (startswith_no_case(t, "pidfile:")) { | |
c279613f | 515 | const char *fn; |
95ed3294 TA |
516 | |
517 | state = NORMAL; | |
518 | ||
519 | fn = strstrip(t+8); | |
520 | if (!path_is_absolute(fn)) { | |
f2341e0a | 521 | log_error("[%s:%u] PID file not absolute. Ignoring.", s->path, line); |
95ed3294 TA |
522 | continue; |
523 | } | |
524 | ||
c279613f LP |
525 | r = free_and_strdup(&s->pid_file, fn); |
526 | if (r < 0) | |
527 | return log_oom(); | |
95ed3294 TA |
528 | } |
529 | ||
530 | } else if (state == DESCRIPTION) { | |
531 | ||
532 | /* Try to parse Red Hat style description | |
533 | * continuation */ | |
534 | ||
c279613f | 535 | size_t k; |
95ed3294 TA |
536 | char *j; |
537 | ||
c279613f LP |
538 | k = strlen(t); |
539 | if (k > 0 && t[k-1] == '\\') | |
95ed3294 TA |
540 | t[k-1] = 0; |
541 | else | |
542 | state = NORMAL; | |
543 | ||
544 | j = strstrip(t); | |
c279613f | 545 | if (!isempty(j)) { |
95ed3294 TA |
546 | char *d = NULL; |
547 | ||
548 | if (chkconfig_description) | |
605405c6 | 549 | d = strjoin(chkconfig_description, " ", j); |
95ed3294 TA |
550 | else |
551 | d = strdup(j); | |
95ed3294 | 552 | if (!d) |
c279613f | 553 | return log_oom(); |
95ed3294 TA |
554 | |
555 | free(chkconfig_description); | |
556 | chkconfig_description = d; | |
557 | } | |
558 | ||
3742095b | 559 | } else if (IN_SET(state, LSB, LSB_DESCRIPTION)) { |
95ed3294 TA |
560 | |
561 | if (startswith_no_case(t, "Provides:")) { | |
95ed3294 TA |
562 | state = LSB; |
563 | ||
1e2fee5f ZJS |
564 | r = handle_provides(s, line, t, t + 9); |
565 | if (r < 0) | |
566 | return r; | |
c279613f | 567 | |
95ed3294 TA |
568 | } else if (startswith_no_case(t, "Required-Start:") || |
569 | startswith_no_case(t, "Should-Start:") || | |
570 | startswith_no_case(t, "X-Start-Before:") || | |
571 | startswith_no_case(t, "X-Start-After:")) { | |
95ed3294 TA |
572 | |
573 | state = LSB; | |
574 | ||
1e2fee5f ZJS |
575 | r = handle_dependencies(s, line, t, strchr(t, ':') + 1); |
576 | if (r < 0) | |
577 | return r; | |
95ed3294 | 578 | |
95ed3294 | 579 | } else if (startswith_no_case(t, "Description:")) { |
c279613f | 580 | const char *j; |
95ed3294 TA |
581 | |
582 | state = LSB_DESCRIPTION; | |
583 | ||
3c6f7c34 | 584 | j = empty_to_null(strstrip(t+12)); |
95ed3294 | 585 | |
c279613f LP |
586 | r = free_and_strdup(&long_description, j); |
587 | if (r < 0) | |
588 | return log_oom(); | |
95ed3294 TA |
589 | |
590 | } else if (startswith_no_case(t, "Short-Description:")) { | |
c279613f | 591 | const char *j; |
95ed3294 TA |
592 | |
593 | state = LSB; | |
594 | ||
3c6f7c34 | 595 | j = empty_to_null(strstrip(t+18)); |
95ed3294 | 596 | |
c279613f LP |
597 | r = free_and_strdup(&short_description, j); |
598 | if (r < 0) | |
599 | return log_oom(); | |
95ed3294 TA |
600 | |
601 | } else if (state == LSB_DESCRIPTION) { | |
602 | ||
603 | if (startswith(l, "#\t") || startswith(l, "# ")) { | |
c279613f | 604 | const char *j; |
95ed3294 TA |
605 | |
606 | j = strstrip(t); | |
c279613f | 607 | if (!isempty(j)) { |
95ed3294 TA |
608 | char *d = NULL; |
609 | ||
610 | if (long_description) | |
605405c6 | 611 | d = strjoin(long_description, " ", t); |
95ed3294 TA |
612 | else |
613 | d = strdup(j); | |
95ed3294 | 614 | if (!d) |
c279613f | 615 | return log_oom(); |
95ed3294 TA |
616 | |
617 | free(long_description); | |
618 | long_description = d; | |
619 | } | |
620 | ||
621 | } else | |
622 | state = LSB; | |
623 | } | |
624 | } | |
625 | } | |
626 | ||
627 | s->reload = supports_reload; | |
628 | ||
629 | /* We use the long description only if | |
630 | * no short description is set. */ | |
631 | ||
632 | if (short_description) | |
633 | description = short_description; | |
634 | else if (chkconfig_description) | |
635 | description = chkconfig_description; | |
636 | else if (long_description) | |
637 | description = long_description; | |
638 | else | |
639 | description = NULL; | |
640 | ||
641 | if (description) { | |
642 | char *d; | |
643 | ||
644 | d = strappend(s->has_lsb ? "LSB: " : "SYSV: ", description); | |
645 | if (!d) | |
c279613f | 646 | return log_oom(); |
95ed3294 TA |
647 | |
648 | s->description = d; | |
649 | } | |
650 | ||
c279613f | 651 | s->loaded = true; |
95ed3294 TA |
652 | return 0; |
653 | } | |
654 | ||
655 | static int fix_order(SysvStub *s, Hashmap *all_services) { | |
656 | SysvStub *other; | |
657 | Iterator j; | |
658 | int r; | |
659 | ||
660 | assert(s); | |
661 | ||
c279613f LP |
662 | if (!s->loaded) |
663 | return 0; | |
664 | ||
95ed3294 TA |
665 | if (s->sysv_start_priority < 0) |
666 | return 0; | |
667 | ||
668 | HASHMAP_FOREACH(other, all_services, j) { | |
669 | if (s == other) | |
670 | continue; | |
671 | ||
c279613f LP |
672 | if (!other->loaded) |
673 | continue; | |
674 | ||
95ed3294 TA |
675 | if (other->sysv_start_priority < 0) |
676 | continue; | |
677 | ||
678 | /* If both units have modern headers we don't care | |
679 | * about the priorities */ | |
680 | if (s->has_lsb && other->has_lsb) | |
681 | continue; | |
682 | ||
683 | if (other->sysv_start_priority < s->sysv_start_priority) { | |
684 | r = strv_extend(&s->after, other->name); | |
685 | if (r < 0) | |
686 | return log_oom(); | |
c279613f LP |
687 | |
688 | } else if (other->sysv_start_priority > s->sysv_start_priority) { | |
95ed3294 TA |
689 | r = strv_extend(&s->before, other->name); |
690 | if (r < 0) | |
691 | return log_oom(); | |
c279613f | 692 | } else |
95ed3294 TA |
693 | continue; |
694 | ||
695 | /* FIXME: Maybe we should compare the name here lexicographically? */ | |
696 | } | |
697 | ||
698 | return 0; | |
699 | } | |
700 | ||
4143c6c3 LP |
701 | static int acquire_search_path(const char *def, const char *envvar, char ***ret) { |
702 | _cleanup_strv_free_ char **l = NULL; | |
703 | const char *e; | |
704 | int r; | |
705 | ||
706 | assert(def); | |
707 | assert(envvar); | |
708 | ||
709 | e = getenv(envvar); | |
710 | if (e) { | |
711 | r = path_split_and_make_absolute(e, &l); | |
712 | if (r < 0) | |
713 | return log_error_errno(r, "Failed to make $%s search path absolute: %m", envvar); | |
714 | } | |
715 | ||
716 | if (strv_isempty(l)) { | |
717 | strv_free(l); | |
718 | ||
bea1a013 | 719 | l = strv_new(def); |
4143c6c3 LP |
720 | if (!l) |
721 | return log_oom(); | |
722 | } | |
723 | ||
724 | if (!path_strv_resolve_uniq(l, NULL)) | |
725 | return log_oom(); | |
726 | ||
ae2a15bc | 727 | *ret = TAKE_PTR(l); |
4143c6c3 LP |
728 | |
729 | return 0; | |
730 | } | |
731 | ||
a8ffe6fb | 732 | static int enumerate_sysv(const LookupPaths *lp, Hashmap *all_services) { |
4143c6c3 | 733 | _cleanup_strv_free_ char **sysvinit_path = NULL; |
95ed3294 | 734 | char **path; |
0ec0deaa | 735 | int r; |
95ed3294 | 736 | |
c279613f | 737 | assert(lp); |
c279613f | 738 | |
4143c6c3 LP |
739 | r = acquire_search_path(SYSTEM_SYSVINIT_PATH, "SYSTEMD_SYSVINIT_PATH", &sysvinit_path); |
740 | if (r < 0) | |
741 | return r; | |
742 | ||
743 | STRV_FOREACH(path, sysvinit_path) { | |
95ed3294 TA |
744 | _cleanup_closedir_ DIR *d = NULL; |
745 | struct dirent *de; | |
746 | ||
747 | d = opendir(*path); | |
748 | if (!d) { | |
749 | if (errno != ENOENT) | |
c279613f | 750 | log_warning_errno(errno, "Opening %s failed, ignoring: %m", *path); |
95ed3294 TA |
751 | continue; |
752 | } | |
753 | ||
c279613f | 754 | FOREACH_DIRENT(de, d, log_error_errno(errno, "Failed to enumerate directory %s, ignoring: %m", *path)) { |
95ed3294 | 755 | _cleanup_free_ char *fpath = NULL, *name = NULL; |
8fba1c8d | 756 | _cleanup_(free_sysvstubp) SysvStub *service = NULL; |
805e5dda | 757 | struct stat st; |
95ed3294 | 758 | |
7b729f86 | 759 | if (fstatat(dirfd(d), de->d_name, &st, 0) < 0) { |
c279613f | 760 | log_warning_errno(errno, "stat() failed on %s/%s, ignoring: %m", *path, de->d_name); |
95ed3294 | 761 | continue; |
805e5dda | 762 | } |
95ed3294 TA |
763 | |
764 | if (!(st.st_mode & S_IXUSR)) | |
765 | continue; | |
766 | ||
805e5dda LP |
767 | if (!S_ISREG(st.st_mode)) |
768 | continue; | |
769 | ||
95ed3294 TA |
770 | name = sysv_translate_name(de->d_name); |
771 | if (!name) | |
772 | return log_oom(); | |
773 | ||
a986501b LP |
774 | if (hashmap_contains(all_services, name)) |
775 | continue; | |
776 | ||
5ae87056 | 777 | r = unit_file_exists(UNIT_FILE_SYSTEM, lp, name); |
76ec966f | 778 | if (r < 0 && !IN_SET(r, -ELOOP, -ERFKILL, -EADDRNOTAVAIL)) { |
0ec0deaa LP |
779 | log_debug_errno(r, "Failed to detect whether %s exists, skipping: %m", name); |
780 | continue; | |
3c6d8e57 | 781 | } else if (r != 0) { |
0ec0deaa | 782 | log_debug("Native unit for %s already exists, skipping.", name); |
f4f01ec1 MP |
783 | continue; |
784 | } | |
785 | ||
605405c6 | 786 | fpath = strjoin(*path, "/", de->d_name); |
c279613f LP |
787 | if (!fpath) |
788 | return log_oom(); | |
789 | ||
95ed3294 TA |
790 | service = new0(SysvStub, 1); |
791 | if (!service) | |
792 | return log_oom(); | |
793 | ||
794 | service->sysv_start_priority = -1; | |
1cc6c93a YW |
795 | service->name = TAKE_PTR(name); |
796 | service->path = TAKE_PTR(fpath); | |
95ed3294 TA |
797 | |
798 | r = hashmap_put(all_services, service->name, service); | |
805e5dda | 799 | if (r < 0) |
95ed3294 TA |
800 | return log_oom(); |
801 | ||
805e5dda | 802 | service = NULL; |
95ed3294 TA |
803 | } |
804 | } | |
805 | ||
806 | return 0; | |
807 | } | |
808 | ||
a8ffe6fb | 809 | static int set_dependencies_from_rcnd(const LookupPaths *lp, Hashmap *all_services) { |
95ed3294 | 810 | Set *runlevel_services[ELEMENTSOF(rcnd_table)] = {}; |
4143c6c3 | 811 | _cleanup_strv_free_ char **sysvrcnd_path = NULL; |
c279613f LP |
812 | SysvStub *service; |
813 | unsigned i; | |
814 | Iterator j; | |
815 | char **p; | |
816 | int r; | |
95ed3294 | 817 | |
c279613f LP |
818 | assert(lp); |
819 | ||
4143c6c3 LP |
820 | r = acquire_search_path(SYSTEM_SYSVRCND_PATH, "SYSTEMD_SYSVRCND_PATH", &sysvrcnd_path); |
821 | if (r < 0) | |
822 | return r; | |
823 | ||
824 | STRV_FOREACH(p, sysvrcnd_path) { | |
95ed3294 | 825 | for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) { |
c279613f LP |
826 | |
827 | _cleanup_closedir_ DIR *d = NULL; | |
828 | _cleanup_free_ char *path = NULL; | |
95ed3294 TA |
829 | struct dirent *de; |
830 | ||
605405c6 | 831 | path = strjoin(*p, "/", rcnd_table[i].path); |
c279613f LP |
832 | if (!path) { |
833 | r = log_oom(); | |
834 | goto finish; | |
835 | } | |
95ed3294 TA |
836 | |
837 | d = opendir(path); | |
838 | if (!d) { | |
839 | if (errno != ENOENT) | |
c279613f | 840 | log_warning_errno(errno, "Opening %s failed, ignoring: %m", path); |
95ed3294 TA |
841 | |
842 | continue; | |
843 | } | |
844 | ||
c279613f LP |
845 | FOREACH_DIRENT(de, d, log_error_errno(errno, "Failed to enumerate directory %s, ignoring: %m", path)) { |
846 | _cleanup_free_ char *name = NULL, *fpath = NULL; | |
95ed3294 TA |
847 | int a, b; |
848 | ||
b9c59555 | 849 | if (de->d_name[0] != 'S') |
95ed3294 TA |
850 | continue; |
851 | ||
852 | if (strlen(de->d_name) < 4) | |
853 | continue; | |
854 | ||
855 | a = undecchar(de->d_name[1]); | |
856 | b = undecchar(de->d_name[2]); | |
857 | ||
858 | if (a < 0 || b < 0) | |
859 | continue; | |
860 | ||
605405c6 | 861 | fpath = strjoin(*p, "/", de->d_name); |
95ed3294 | 862 | if (!fpath) { |
c279613f | 863 | r = log_oom(); |
95ed3294 TA |
864 | goto finish; |
865 | } | |
866 | ||
867 | name = sysv_translate_name(de->d_name + 3); | |
868 | if (!name) { | |
869 | r = log_oom(); | |
870 | goto finish; | |
871 | } | |
872 | ||
8c84621c | 873 | service = hashmap_get(all_services, name); |
9ed794a3 | 874 | if (!service) { |
c279613f | 875 | log_debug("Ignoring %s symlink in %s, not generating %s.", de->d_name, rcnd_table[i].path, name); |
95ed3294 TA |
876 | continue; |
877 | } | |
878 | ||
b9c59555 | 879 | service->sysv_start_priority = MAX(a*10 + b, service->sysv_start_priority); |
95ed3294 | 880 | |
b9c59555 LP |
881 | r = set_ensure_allocated(&runlevel_services[i], NULL); |
882 | if (r < 0) { | |
883 | log_oom(); | |
884 | goto finish; | |
885 | } | |
95ed3294 | 886 | |
b9c59555 LP |
887 | r = set_put(runlevel_services[i], service); |
888 | if (r < 0) { | |
889 | log_oom(); | |
890 | goto finish; | |
95ed3294 TA |
891 | } |
892 | } | |
893 | } | |
c279613f | 894 | } |
95ed3294 | 895 | |
95ed3294 TA |
896 | for (i = 0; i < ELEMENTSOF(rcnd_table); i ++) |
897 | SET_FOREACH(service, runlevel_services[i], j) { | |
898 | r = strv_extend(&service->before, rcnd_table[i].target); | |
c279613f LP |
899 | if (r < 0) { |
900 | log_oom(); | |
901 | goto finish; | |
902 | } | |
260ad50f | 903 | r = strv_extend(&service->wanted_by, rcnd_table[i].target); |
c279613f LP |
904 | if (r < 0) { |
905 | log_oom(); | |
906 | goto finish; | |
907 | } | |
95ed3294 TA |
908 | } |
909 | ||
95ed3294 TA |
910 | r = 0; |
911 | ||
912 | finish: | |
95ed3294 TA |
913 | for (i = 0; i < ELEMENTSOF(rcnd_table); i++) |
914 | set_free(runlevel_services[i]); | |
915 | ||
916 | return r; | |
917 | } | |
918 | ||
919 | int main(int argc, char *argv[]) { | |
5921fc3c | 920 | _cleanup_(free_sysvstub_hashmapp) Hashmap *all_services = NULL; |
8e766630 | 921 | _cleanup_(lookup_paths_free) LookupPaths lp = {}; |
95ed3294 TA |
922 | SysvStub *service; |
923 | Iterator j; | |
c279613f | 924 | int r; |
95ed3294 TA |
925 | |
926 | if (argc > 1 && argc != 4) { | |
927 | log_error("This program takes three or no arguments."); | |
928 | return EXIT_FAILURE; | |
929 | } | |
930 | ||
931 | if (argc > 1) | |
932 | arg_dest = argv[3]; | |
933 | ||
6c347d50 LP |
934 | log_set_prohibit_ipc(true); |
935 | log_set_target(LOG_TARGET_AUTO); | |
95ed3294 TA |
936 | log_parse_environment(); |
937 | log_open(); | |
938 | ||
939 | umask(0022); | |
940 | ||
4943d143 | 941 | r = lookup_paths_init(&lp, UNIT_FILE_SYSTEM, LOOKUP_PATHS_EXCLUDE_GENERATED, NULL); |
95ed3294 | 942 | if (r < 0) { |
c279613f LP |
943 | log_error_errno(r, "Failed to find lookup paths: %m"); |
944 | goto finish; | |
95ed3294 TA |
945 | } |
946 | ||
d5099efc | 947 | all_services = hashmap_new(&string_hash_ops); |
95ed3294 | 948 | if (!all_services) { |
c279613f LP |
949 | r = log_oom(); |
950 | goto finish; | |
95ed3294 TA |
951 | } |
952 | ||
a8ffe6fb | 953 | r = enumerate_sysv(&lp, all_services); |
c279613f LP |
954 | if (r < 0) |
955 | goto finish; | |
95ed3294 | 956 | |
a8ffe6fb | 957 | r = set_dependencies_from_rcnd(&lp, all_services); |
c279613f LP |
958 | if (r < 0) |
959 | goto finish; | |
95ed3294 | 960 | |
c279613f LP |
961 | HASHMAP_FOREACH(service, all_services, j) |
962 | (void) load_sysv(service); | |
b3fae863 | 963 | |
95ed3294 | 964 | HASHMAP_FOREACH(service, all_services, j) { |
c279613f LP |
965 | (void) fix_order(service, all_services); |
966 | (void) generate_unit_file(service); | |
95ed3294 TA |
967 | } |
968 | ||
c279613f LP |
969 | r = 0; |
970 | ||
971 | finish: | |
972 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; | |
95ed3294 | 973 | } |