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Commit | Line | Data |
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db9ecf05 | 1 | /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
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" | |
5e332028 | 17 | #include "main-func.h" |
95ed3294 | 18 | #include "mkdir.h" |
95ed3294 | 19 | #include "path-lookup.h" |
07630cea | 20 | #include "path-util.h" |
f2341e0a | 21 | #include "set.h" |
07630cea | 22 | #include "special.h" |
98bad05e | 23 | #include "specifier.h" |
8fcde012 | 24 | #include "stat-util.h" |
07630cea LP |
25 | #include "string-util.h" |
26 | #include "strv.h" | |
27 | #include "unit-name.h" | |
28 | #include "util.h" | |
95ed3294 | 29 | |
95ed3294 TA |
30 | static const struct { |
31 | const char *path; | |
32 | const char *target; | |
95ed3294 TA |
33 | } rcnd_table[] = { |
34 | /* Standard SysV runlevels for start-up */ | |
788d2b08 LP |
35 | { "rc1.d", SPECIAL_RESCUE_TARGET }, |
36 | { "rc2.d", SPECIAL_MULTI_USER_TARGET }, | |
37 | { "rc3.d", SPECIAL_MULTI_USER_TARGET }, | |
38 | { "rc4.d", SPECIAL_MULTI_USER_TARGET }, | |
39 | { "rc5.d", SPECIAL_GRAPHICAL_TARGET }, | |
40 | ||
41 | /* We ignore the SysV runlevels for shutdown here, as SysV services get default dependencies anyway, and that | |
42 | * means they are shut down anyway at system power off if running. */ | |
95ed3294 TA |
43 | }; |
44 | ||
7a44c7e3 | 45 | static const char *arg_dest = NULL; |
8fba1c8d | 46 | |
95ed3294 TA |
47 | typedef struct SysvStub { |
48 | char *name; | |
49 | char *path; | |
50 | char *description; | |
51 | int sysv_start_priority; | |
52 | char *pid_file; | |
53 | char **before; | |
54 | char **after; | |
55 | char **wants; | |
260ad50f | 56 | char **wanted_by; |
95ed3294 TA |
57 | bool has_lsb; |
58 | bool reload; | |
c279613f | 59 | bool loaded; |
95ed3294 TA |
60 | } SysvStub; |
61 | ||
75db809a | 62 | static SysvStub* free_sysvstub(SysvStub *s) { |
c279613f | 63 | if (!s) |
75db809a | 64 | return NULL; |
c279613f | 65 | |
8fba1c8d ZJS |
66 | free(s->name); |
67 | free(s->path); | |
68 | free(s->description); | |
69 | free(s->pid_file); | |
70 | strv_free(s->before); | |
71 | strv_free(s->after); | |
72 | strv_free(s->wants); | |
73 | strv_free(s->wanted_by); | |
75db809a | 74 | return mfree(s); |
8fba1c8d | 75 | } |
8fba1c8d ZJS |
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 | ||
270384b2 | 89 | link = prefix_roota(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 | 105 | const char *unit; |
95ed3294 TA |
106 | int r; |
107 | ||
c279613f LP |
108 | assert(s); |
109 | ||
110 | if (!s->loaded) | |
111 | return 0; | |
112 | ||
98bad05e LP |
113 | path_escaped = specifier_escape(s->path); |
114 | if (!path_escaped) | |
115 | return log_oom(); | |
116 | ||
270384b2 | 117 | unit = prefix_roota(arg_dest, s->name); |
c279613f | 118 | |
77354c7e MP |
119 | /* We might already have a symlink with the same name from a Provides:, |
120 | * or from backup files like /etc/init.d/foo.bak. Real scripts always win, | |
121 | * so remove an existing link */ | |
4e558983 | 122 | if (is_symlink(unit) > 0) { |
c279613f | 123 | log_warning("Overwriting existing symlink %s with real service.", unit); |
9993ef2e | 124 | (void) unlink(unit); |
77354c7e MP |
125 | } |
126 | ||
95ed3294 | 127 | f = fopen(unit, "wxe"); |
4a62c710 MS |
128 | if (!f) |
129 | return log_error_errno(errno, "Failed to create unit file %s: %m", unit); | |
95ed3294 TA |
130 | |
131 | fprintf(f, | |
132 | "# Automatically generated by systemd-sysv-generator\n\n" | |
133 | "[Unit]\n" | |
aad0a2c8 | 134 | "Documentation=man:systemd-sysv-generator(8)\n" |
c279613f | 135 | "SourcePath=%s\n", |
98bad05e LP |
136 | path_escaped); |
137 | ||
138 | if (s->description) { | |
c2b2df60 | 139 | _cleanup_free_ char *t = NULL; |
c279613f | 140 | |
98bad05e LP |
141 | t = specifier_escape(s->description); |
142 | if (!t) | |
143 | return log_oom(); | |
144 | ||
145 | fprintf(f, "Description=%s\n", t); | |
146 | } | |
95ed3294 | 147 | |
c584ffc0 LN |
148 | STRV_FOREACH(p, s->before) |
149 | fprintf(f, "Before=%s\n", *p); | |
150 | STRV_FOREACH(p, s->after) | |
151 | fprintf(f, "After=%s\n", *p); | |
152 | STRV_FOREACH(p, s->wants) | |
153 | fprintf(f, "Wants=%s\n", *p); | |
95ed3294 TA |
154 | |
155 | fprintf(f, | |
156 | "\n[Service]\n" | |
157 | "Type=forking\n" | |
158 | "Restart=no\n" | |
159 | "TimeoutSec=5min\n" | |
160 | "IgnoreSIGPIPE=no\n" | |
161 | "KillMode=process\n" | |
162 | "GuessMainPID=no\n" | |
163 | "RemainAfterExit=%s\n", | |
164 | yes_no(!s->pid_file)); | |
165 | ||
98bad05e | 166 | if (s->pid_file) { |
c2b2df60 | 167 | _cleanup_free_ char *t = NULL; |
98bad05e LP |
168 | |
169 | t = specifier_escape(s->pid_file); | |
170 | if (!t) | |
171 | return log_oom(); | |
172 | ||
173 | fprintf(f, "PIDFile=%s\n", t); | |
174 | } | |
95ed3294 | 175 | |
41e2036e LP |
176 | /* Consider two special LSB exit codes a clean exit */ |
177 | if (s->has_lsb) | |
178 | fprintf(f, | |
179 | "SuccessExitStatus=%i %i\n", | |
180 | EXIT_NOTINSTALLED, | |
181 | EXIT_NOTCONFIGURED); | |
182 | ||
95ed3294 TA |
183 | fprintf(f, |
184 | "ExecStart=%s start\n" | |
185 | "ExecStop=%s stop\n", | |
98bad05e | 186 | path_escaped, path_escaped); |
95ed3294 TA |
187 | |
188 | if (s->reload) | |
98bad05e | 189 | fprintf(f, "ExecReload=%s reload\n", path_escaped); |
95ed3294 | 190 | |
c279613f LP |
191 | r = fflush_and_check(f); |
192 | if (r < 0) | |
193 | return log_error_errno(r, "Failed to write unit %s: %m", unit); | |
194 | ||
7f0cc637 ZJS |
195 | STRV_FOREACH(p, s->wanted_by) |
196 | (void) generator_add_symlink(arg_dest, *p, "wants", s->name); | |
95ed3294 | 197 | |
c279613f | 198 | return 1; |
95ed3294 TA |
199 | } |
200 | ||
201 | static bool usage_contains_reload(const char *line) { | |
202 | return (strcasestr(line, "{reload|") || | |
203 | strcasestr(line, "{reload}") || | |
204 | strcasestr(line, "{reload\"") || | |
205 | strcasestr(line, "|reload|") || | |
206 | strcasestr(line, "|reload}") || | |
207 | strcasestr(line, "|reload\"")); | |
208 | } | |
209 | ||
210 | static char *sysv_translate_name(const char *name) { | |
0b2ec8a3 DH |
211 | _cleanup_free_ char *c = NULL; |
212 | char *res; | |
95ed3294 | 213 | |
264581a2 FS |
214 | c = strdup(name); |
215 | if (!c) | |
0b2ec8a3 | 216 | return NULL; |
95ed3294 | 217 | |
0b2ec8a3 DH |
218 | res = endswith(c, ".sh"); |
219 | if (res) | |
220 | *res = 0; | |
95ed3294 | 221 | |
37cbc1d5 | 222 | if (unit_name_mangle(c, 0, &res) < 0) |
0b2ec8a3 DH |
223 | return NULL; |
224 | ||
225 | return res; | |
95ed3294 TA |
226 | } |
227 | ||
7532e6d4 | 228 | static int sysv_translate_facility(SysvStub *s, unsigned line, const char *name, char **ret) { |
95ed3294 TA |
229 | |
230 | /* We silently ignore the $ prefix here. According to the LSB | |
231 | * spec it simply indicates whether something is a | |
232 | * standardized name or a distribution-specific one. Since we | |
233 | * just follow what already exists and do not introduce new | |
234 | * uses or names we don't care who introduced a new name. */ | |
235 | ||
236 | static const char * const table[] = { | |
237 | /* LSB defined facilities */ | |
238 | "local_fs", NULL, | |
239 | "network", SPECIAL_NETWORK_ONLINE_TARGET, | |
240 | "named", SPECIAL_NSS_LOOKUP_TARGET, | |
241 | "portmap", SPECIAL_RPCBIND_TARGET, | |
242 | "remote_fs", SPECIAL_REMOTE_FS_TARGET, | |
243 | "syslog", NULL, | |
244 | "time", SPECIAL_TIME_SYNC_TARGET, | |
245 | }; | |
246 | ||
7532e6d4 | 247 | const char *filename; |
c279613f | 248 | char *filename_no_sh, *e, *m; |
95ed3294 | 249 | const char *n; |
4e488555 | 250 | unsigned i; |
c279613f | 251 | int r; |
95ed3294 TA |
252 | |
253 | assert(name); | |
7532e6d4 | 254 | assert(s); |
c279613f | 255 | assert(ret); |
95ed3294 | 256 | |
7532e6d4 FS |
257 | filename = basename(s->path); |
258 | ||
95ed3294 TA |
259 | n = *name == '$' ? name + 1 : name; |
260 | ||
261 | for (i = 0; i < ELEMENTSOF(table); i += 2) { | |
95ed3294 TA |
262 | if (!streq(table[i], n)) |
263 | continue; | |
264 | ||
e932f540 LP |
265 | if (!table[i+1]) { |
266 | *ret = NULL; | |
95ed3294 | 267 | return 0; |
e932f540 | 268 | } |
95ed3294 | 269 | |
c279613f LP |
270 | m = strdup(table[i+1]); |
271 | if (!m) | |
95ed3294 TA |
272 | return log_oom(); |
273 | ||
c279613f LP |
274 | *ret = m; |
275 | return 1; | |
276 | } | |
277 | ||
278 | /* If we don't know this name, fallback heuristics to figure | |
279 | * out whether something is a target or a service alias. */ | |
280 | ||
281 | /* Facilities starting with $ are most likely targets */ | |
282 | if (*name == '$') { | |
283 | r = unit_name_build(n, NULL, ".target", ret); | |
284 | if (r < 0) | |
7532e6d4 | 285 | return log_error_errno(r, "[%s:%u] Could not build name for facility %s: %m", s->path, line, name); |
c279613f | 286 | |
e932f540 | 287 | return 1; |
95ed3294 TA |
288 | } |
289 | ||
c279613f | 290 | /* Strip ".sh" suffix from file name for comparison */ |
2f82562b | 291 | filename_no_sh = strdupa_safe(filename); |
40780877 | 292 | e = endswith(filename_no_sh, ".sh"); |
3315f085 | 293 | if (e) { |
4e488555 | 294 | *e = '\0'; |
3315f085 LP |
295 | filename = filename_no_sh; |
296 | } | |
29e0e6d8 | 297 | |
c279613f | 298 | /* Names equaling the file name of the services are redundant */ |
e932f540 LP |
299 | if (streq_ptr(n, filename)) { |
300 | *ret = NULL; | |
95ed3294 | 301 | return 0; |
e932f540 | 302 | } |
95ed3294 | 303 | |
c279613f LP |
304 | /* Everything else we assume to be normal service names */ |
305 | m = sysv_translate_name(n); | |
306 | if (!m) | |
307 | return log_oom(); | |
95ed3294 | 308 | |
c279613f | 309 | *ret = m; |
95ed3294 TA |
310 | return 1; |
311 | } | |
312 | ||
1e2fee5f | 313 | static int handle_provides(SysvStub *s, unsigned line, const char *full_text, const char *text) { |
1e2fee5f ZJS |
314 | int r; |
315 | ||
c279613f LP |
316 | assert(s); |
317 | assert(full_text); | |
318 | assert(text); | |
1e2fee5f | 319 | |
c279613f LP |
320 | for (;;) { |
321 | _cleanup_free_ char *word = NULL, *m = NULL; | |
1e2fee5f | 322 | |
4ec85141 | 323 | r = extract_first_word(&text, &word, NULL, EXTRACT_UNQUOTE|EXTRACT_RELAX); |
1e2fee5f | 324 | if (r < 0) |
7532e6d4 | 325 | return log_error_errno(r, "[%s:%u] Failed to parse word from provides string: %m", s->path, line); |
1e2fee5f | 326 | if (r == 0) |
c279613f LP |
327 | break; |
328 | ||
7532e6d4 | 329 | r = sysv_translate_facility(s, line, word, &m); |
c279613f | 330 | if (r <= 0) /* continue on error */ |
1e2fee5f ZJS |
331 | continue; |
332 | ||
c279613f LP |
333 | switch (unit_name_to_type(m)) { |
334 | ||
335 | case UNIT_SERVICE: | |
1e2fee5f ZJS |
336 | log_debug("Adding Provides: alias '%s' for '%s'", m, s->name); |
337 | r = add_alias(s->name, m); | |
e987f2a8 | 338 | if (r < 0) |
f2341e0a | 339 | log_warning_errno(r, "[%s:%u] Failed to add LSB Provides name %s, ignoring: %m", s->path, line, m); |
c279613f LP |
340 | break; |
341 | ||
342 | case UNIT_TARGET: | |
343 | ||
1e2fee5f ZJS |
344 | /* NB: SysV targets which are provided by a |
345 | * service are pulled in by the services, as | |
346 | * an indication that the generic service is | |
347 | * now available. This is strictly one-way. | |
348 | * The targets do NOT pull in SysV services! */ | |
c279613f | 349 | |
1e2fee5f ZJS |
350 | r = strv_extend(&s->before, m); |
351 | if (r < 0) | |
352 | return log_oom(); | |
c279613f | 353 | |
1e2fee5f ZJS |
354 | r = strv_extend(&s->wants, m); |
355 | if (r < 0) | |
356 | return log_oom(); | |
c279613f | 357 | |
1e2fee5f ZJS |
358 | if (streq(m, SPECIAL_NETWORK_ONLINE_TARGET)) { |
359 | r = strv_extend(&s->before, SPECIAL_NETWORK_TARGET); | |
360 | if (r < 0) | |
361 | return log_oom(); | |
bd9ad4ff LN |
362 | r = strv_extend(&s->wants, SPECIAL_NETWORK_TARGET); |
363 | if (r < 0) | |
364 | return log_oom(); | |
1e2fee5f | 365 | } |
c279613f LP |
366 | |
367 | break; | |
368 | ||
369 | case _UNIT_TYPE_INVALID: | |
2c09a745 | 370 | log_warning("Unit name '%s' is invalid", m); |
c279613f LP |
371 | break; |
372 | ||
373 | default: | |
2c09a745 | 374 | log_warning("Unknown unit type for unit '%s'", m); |
c279613f | 375 | } |
1e2fee5f | 376 | } |
c279613f | 377 | |
1e2fee5f ZJS |
378 | return 0; |
379 | } | |
380 | ||
381 | static int handle_dependencies(SysvStub *s, unsigned line, const char *full_text, const char *text) { | |
1e2fee5f ZJS |
382 | int r; |
383 | ||
c279613f LP |
384 | assert(s); |
385 | assert(full_text); | |
386 | assert(text); | |
1e2fee5f | 387 | |
c279613f LP |
388 | for (;;) { |
389 | _cleanup_free_ char *word = NULL, *m = NULL; | |
390 | bool is_before; | |
1e2fee5f | 391 | |
4ec85141 | 392 | r = extract_first_word(&text, &word, NULL, EXTRACT_UNQUOTE|EXTRACT_RELAX); |
c279613f | 393 | if (r < 0) |
7532e6d4 | 394 | return log_error_errno(r, "[%s:%u] Failed to parse word from provides string: %m", s->path, line); |
1e2fee5f | 395 | if (r == 0) |
c279613f LP |
396 | break; |
397 | ||
7532e6d4 | 398 | r = sysv_translate_facility(s, line, word, &m); |
c279613f | 399 | if (r <= 0) /* continue on error */ |
1e2fee5f ZJS |
400 | continue; |
401 | ||
402 | is_before = startswith_no_case(full_text, "X-Start-Before:"); | |
403 | ||
404 | if (streq(m, SPECIAL_NETWORK_ONLINE_TARGET) && !is_before) { | |
405 | /* the network-online target is special, as it needs to be actively pulled in */ | |
406 | r = strv_extend(&s->after, m); | |
407 | if (r < 0) | |
408 | return log_oom(); | |
c279613f | 409 | |
1e2fee5f | 410 | r = strv_extend(&s->wants, m); |
e987f2a8 | 411 | } else |
1e2fee5f | 412 | r = strv_extend(is_before ? &s->before : &s->after, m); |
1e2fee5f | 413 | if (r < 0) |
e987f2a8 | 414 | return log_oom(); |
1e2fee5f | 415 | } |
c279613f | 416 | |
1e2fee5f ZJS |
417 | return 0; |
418 | } | |
419 | ||
95ed3294 | 420 | static int load_sysv(SysvStub *s) { |
c2b2df60 | 421 | _cleanup_fclose_ FILE *f = NULL; |
95ed3294 TA |
422 | unsigned line = 0; |
423 | int r; | |
424 | enum { | |
425 | NORMAL, | |
426 | DESCRIPTION, | |
427 | LSB, | |
428 | LSB_DESCRIPTION, | |
429 | USAGE_CONTINUATION | |
430 | } state = NORMAL; | |
431 | _cleanup_free_ char *short_description = NULL, *long_description = NULL, *chkconfig_description = NULL; | |
432 | char *description; | |
433 | bool supports_reload = false; | |
434 | ||
435 | assert(s); | |
436 | ||
437 | f = fopen(s->path, "re"); | |
c279613f LP |
438 | if (!f) { |
439 | if (errno == ENOENT) | |
440 | return 0; | |
95ed3294 | 441 | |
c279613f LP |
442 | return log_error_errno(errno, "Failed to open %s: %m", s->path); |
443 | } | |
77354c7e | 444 | |
c279613f | 445 | log_debug("Loading SysV script %s", s->path); |
95ed3294 | 446 | |
e393eff6 LP |
447 | for (;;) { |
448 | _cleanup_free_ char *l = NULL; | |
c279613f | 449 | char *t; |
95ed3294 | 450 | |
e393eff6 LP |
451 | r = read_line(f, LONG_LINE_MAX, &l); |
452 | if (r < 0) | |
453 | return log_error_errno(r, "Failed to read configuration file '%s': %m", s->path); | |
454 | if (r == 0) | |
455 | break; | |
456 | ||
95ed3294 TA |
457 | line++; |
458 | ||
459 | t = strstrip(l); | |
460 | if (*t != '#') { | |
461 | /* Try to figure out whether this init script supports | |
462 | * the reload operation. This heuristic looks for | |
463 | * "Usage" lines which include the reload option. */ | |
e393eff6 | 464 | if (state == USAGE_CONTINUATION || |
95ed3294 TA |
465 | (state == NORMAL && strcasestr(t, "usage"))) { |
466 | if (usage_contains_reload(t)) { | |
467 | supports_reload = true; | |
468 | state = NORMAL; | |
469 | } else if (t[strlen(t)-1] == '\\') | |
470 | state = USAGE_CONTINUATION; | |
471 | else | |
472 | state = NORMAL; | |
473 | } | |
474 | ||
475 | continue; | |
476 | } | |
477 | ||
478 | if (state == NORMAL && streq(t, "### BEGIN INIT INFO")) { | |
479 | state = LSB; | |
480 | s->has_lsb = true; | |
481 | continue; | |
482 | } | |
483 | ||
3742095b | 484 | if (IN_SET(state, LSB_DESCRIPTION, LSB) && streq(t, "### END INIT INFO")) { |
95ed3294 TA |
485 | state = NORMAL; |
486 | continue; | |
487 | } | |
488 | ||
489 | t++; | |
490 | t += strspn(t, WHITESPACE); | |
491 | ||
492 | if (state == NORMAL) { | |
493 | ||
494 | /* Try to parse Red Hat style description */ | |
495 | ||
496 | if (startswith_no_case(t, "description:")) { | |
497 | ||
c279613f | 498 | size_t k; |
859fdd1e | 499 | const char *j; |
95ed3294 | 500 | |
c279613f LP |
501 | k = strlen(t); |
502 | if (k > 0 && t[k-1] == '\\') { | |
95ed3294 TA |
503 | state = DESCRIPTION; |
504 | t[k-1] = 0; | |
505 | } | |
506 | ||
3c6f7c34 | 507 | j = empty_to_null(strstrip(t+12)); |
95ed3294 | 508 | |
c279613f LP |
509 | r = free_and_strdup(&chkconfig_description, j); |
510 | if (r < 0) | |
511 | return log_oom(); | |
95ed3294 TA |
512 | |
513 | } else if (startswith_no_case(t, "pidfile:")) { | |
c279613f | 514 | const char *fn; |
95ed3294 TA |
515 | |
516 | state = NORMAL; | |
517 | ||
518 | fn = strstrip(t+8); | |
519 | if (!path_is_absolute(fn)) { | |
f2341e0a | 520 | log_error("[%s:%u] PID file not absolute. Ignoring.", s->path, line); |
95ed3294 TA |
521 | continue; |
522 | } | |
523 | ||
c279613f LP |
524 | r = free_and_strdup(&s->pid_file, fn); |
525 | if (r < 0) | |
526 | return log_oom(); | |
95ed3294 TA |
527 | } |
528 | ||
529 | } else if (state == DESCRIPTION) { | |
530 | ||
531 | /* Try to parse Red Hat style description | |
532 | * continuation */ | |
533 | ||
c279613f | 534 | size_t k; |
580bf613 | 535 | const char *j; |
95ed3294 | 536 | |
c279613f LP |
537 | k = strlen(t); |
538 | if (k > 0 && t[k-1] == '\\') | |
95ed3294 TA |
539 | t[k-1] = 0; |
540 | else | |
541 | state = NORMAL; | |
542 | ||
543 | j = strstrip(t); | |
580bf613 YW |
544 | if (!isempty(j) && !strextend_with_separator(&chkconfig_description, " ", j)) |
545 | return log_oom(); | |
95ed3294 | 546 | |
3742095b | 547 | } else if (IN_SET(state, LSB, LSB_DESCRIPTION)) { |
95ed3294 TA |
548 | |
549 | if (startswith_no_case(t, "Provides:")) { | |
95ed3294 TA |
550 | state = LSB; |
551 | ||
1e2fee5f ZJS |
552 | r = handle_provides(s, line, t, t + 9); |
553 | if (r < 0) | |
554 | return r; | |
c279613f | 555 | |
95ed3294 TA |
556 | } else if (startswith_no_case(t, "Required-Start:") || |
557 | startswith_no_case(t, "Should-Start:") || | |
558 | startswith_no_case(t, "X-Start-Before:") || | |
559 | startswith_no_case(t, "X-Start-After:")) { | |
95ed3294 TA |
560 | |
561 | state = LSB; | |
562 | ||
1e2fee5f ZJS |
563 | r = handle_dependencies(s, line, t, strchr(t, ':') + 1); |
564 | if (r < 0) | |
565 | return r; | |
95ed3294 | 566 | |
95ed3294 | 567 | } else if (startswith_no_case(t, "Description:")) { |
c279613f | 568 | const char *j; |
95ed3294 TA |
569 | |
570 | state = LSB_DESCRIPTION; | |
571 | ||
3c6f7c34 | 572 | j = empty_to_null(strstrip(t+12)); |
95ed3294 | 573 | |
c279613f LP |
574 | r = free_and_strdup(&long_description, j); |
575 | if (r < 0) | |
576 | return log_oom(); | |
95ed3294 TA |
577 | |
578 | } else if (startswith_no_case(t, "Short-Description:")) { | |
c279613f | 579 | const char *j; |
95ed3294 TA |
580 | |
581 | state = LSB; | |
582 | ||
3c6f7c34 | 583 | j = empty_to_null(strstrip(t+18)); |
95ed3294 | 584 | |
c279613f LP |
585 | r = free_and_strdup(&short_description, j); |
586 | if (r < 0) | |
587 | return log_oom(); | |
95ed3294 TA |
588 | |
589 | } else if (state == LSB_DESCRIPTION) { | |
590 | ||
591 | if (startswith(l, "#\t") || startswith(l, "# ")) { | |
c279613f | 592 | const char *j; |
95ed3294 TA |
593 | |
594 | j = strstrip(t); | |
580bf613 YW |
595 | if (!isempty(j) && !strextend_with_separator(&long_description, " ", j)) |
596 | return log_oom(); | |
95ed3294 TA |
597 | } else |
598 | state = LSB; | |
599 | } | |
600 | } | |
601 | } | |
602 | ||
603 | s->reload = supports_reload; | |
604 | ||
605 | /* We use the long description only if | |
606 | * no short description is set. */ | |
607 | ||
608 | if (short_description) | |
609 | description = short_description; | |
610 | else if (chkconfig_description) | |
611 | description = chkconfig_description; | |
612 | else if (long_description) | |
613 | description = long_description; | |
614 | else | |
615 | description = NULL; | |
616 | ||
617 | if (description) { | |
618 | char *d; | |
619 | ||
b910cc72 | 620 | d = strjoin(s->has_lsb ? "LSB: " : "SYSV: ", description); |
95ed3294 | 621 | if (!d) |
c279613f | 622 | return log_oom(); |
95ed3294 TA |
623 | |
624 | s->description = d; | |
625 | } | |
626 | ||
c279613f | 627 | s->loaded = true; |
95ed3294 TA |
628 | return 0; |
629 | } | |
630 | ||
631 | static int fix_order(SysvStub *s, Hashmap *all_services) { | |
632 | SysvStub *other; | |
95ed3294 TA |
633 | int r; |
634 | ||
635 | assert(s); | |
636 | ||
c279613f LP |
637 | if (!s->loaded) |
638 | return 0; | |
639 | ||
95ed3294 TA |
640 | if (s->sysv_start_priority < 0) |
641 | return 0; | |
642 | ||
90e74a66 | 643 | HASHMAP_FOREACH(other, all_services) { |
95ed3294 TA |
644 | if (s == other) |
645 | continue; | |
646 | ||
c279613f LP |
647 | if (!other->loaded) |
648 | continue; | |
649 | ||
95ed3294 TA |
650 | if (other->sysv_start_priority < 0) |
651 | continue; | |
652 | ||
653 | /* If both units have modern headers we don't care | |
654 | * about the priorities */ | |
655 | if (s->has_lsb && other->has_lsb) | |
656 | continue; | |
657 | ||
658 | if (other->sysv_start_priority < s->sysv_start_priority) { | |
659 | r = strv_extend(&s->after, other->name); | |
660 | if (r < 0) | |
661 | return log_oom(); | |
c279613f LP |
662 | |
663 | } else if (other->sysv_start_priority > s->sysv_start_priority) { | |
95ed3294 TA |
664 | r = strv_extend(&s->before, other->name); |
665 | if (r < 0) | |
666 | return log_oom(); | |
c279613f | 667 | } else |
95ed3294 TA |
668 | continue; |
669 | ||
670 | /* FIXME: Maybe we should compare the name here lexicographically? */ | |
671 | } | |
672 | ||
673 | return 0; | |
674 | } | |
675 | ||
4143c6c3 LP |
676 | static int acquire_search_path(const char *def, const char *envvar, char ***ret) { |
677 | _cleanup_strv_free_ char **l = NULL; | |
678 | const char *e; | |
679 | int r; | |
680 | ||
681 | assert(def); | |
682 | assert(envvar); | |
683 | ||
684 | e = getenv(envvar); | |
685 | if (e) { | |
686 | r = path_split_and_make_absolute(e, &l); | |
687 | if (r < 0) | |
688 | return log_error_errno(r, "Failed to make $%s search path absolute: %m", envvar); | |
689 | } | |
690 | ||
691 | if (strv_isempty(l)) { | |
692 | strv_free(l); | |
693 | ||
bea1a013 | 694 | l = strv_new(def); |
4143c6c3 LP |
695 | if (!l) |
696 | return log_oom(); | |
697 | } | |
698 | ||
699 | if (!path_strv_resolve_uniq(l, NULL)) | |
700 | return log_oom(); | |
701 | ||
ae2a15bc | 702 | *ret = TAKE_PTR(l); |
4143c6c3 LP |
703 | |
704 | return 0; | |
705 | } | |
706 | ||
a8ffe6fb | 707 | static int enumerate_sysv(const LookupPaths *lp, Hashmap *all_services) { |
4143c6c3 | 708 | _cleanup_strv_free_ char **sysvinit_path = NULL; |
0ec0deaa | 709 | int r; |
95ed3294 | 710 | |
c279613f | 711 | assert(lp); |
c279613f | 712 | |
4143c6c3 LP |
713 | r = acquire_search_path(SYSTEM_SYSVINIT_PATH, "SYSTEMD_SYSVINIT_PATH", &sysvinit_path); |
714 | if (r < 0) | |
715 | return r; | |
716 | ||
717 | STRV_FOREACH(path, sysvinit_path) { | |
95ed3294 | 718 | _cleanup_closedir_ DIR *d = NULL; |
95ed3294 TA |
719 | |
720 | d = opendir(*path); | |
721 | if (!d) { | |
722 | if (errno != ENOENT) | |
c279613f | 723 | log_warning_errno(errno, "Opening %s failed, ignoring: %m", *path); |
95ed3294 TA |
724 | continue; |
725 | } | |
726 | ||
c279613f | 727 | FOREACH_DIRENT(de, d, log_error_errno(errno, "Failed to enumerate directory %s, ignoring: %m", *path)) { |
95ed3294 | 728 | _cleanup_free_ char *fpath = NULL, *name = NULL; |
8fba1c8d | 729 | _cleanup_(free_sysvstubp) SysvStub *service = NULL; |
805e5dda | 730 | struct stat st; |
95ed3294 | 731 | |
7b729f86 | 732 | if (fstatat(dirfd(d), de->d_name, &st, 0) < 0) { |
c279613f | 733 | log_warning_errno(errno, "stat() failed on %s/%s, ignoring: %m", *path, de->d_name); |
95ed3294 | 734 | continue; |
805e5dda | 735 | } |
95ed3294 TA |
736 | |
737 | if (!(st.st_mode & S_IXUSR)) | |
738 | continue; | |
739 | ||
805e5dda LP |
740 | if (!S_ISREG(st.st_mode)) |
741 | continue; | |
742 | ||
95ed3294 TA |
743 | name = sysv_translate_name(de->d_name); |
744 | if (!name) | |
745 | return log_oom(); | |
746 | ||
a986501b LP |
747 | if (hashmap_contains(all_services, name)) |
748 | continue; | |
749 | ||
5ae87056 | 750 | r = unit_file_exists(UNIT_FILE_SYSTEM, lp, name); |
76ec966f | 751 | if (r < 0 && !IN_SET(r, -ELOOP, -ERFKILL, -EADDRNOTAVAIL)) { |
0ec0deaa LP |
752 | log_debug_errno(r, "Failed to detect whether %s exists, skipping: %m", name); |
753 | continue; | |
3c6d8e57 | 754 | } else if (r != 0) { |
0ec0deaa | 755 | log_debug("Native unit for %s already exists, skipping.", name); |
f4f01ec1 MP |
756 | continue; |
757 | } | |
758 | ||
657ee2d8 | 759 | fpath = path_join(*path, de->d_name); |
c279613f LP |
760 | if (!fpath) |
761 | return log_oom(); | |
762 | ||
0e42cbe2 LP |
763 | log_warning("SysV service '%s' lacks a native systemd unit file. " |
764 | "Automatically generating a unit file for compatibility. " | |
765 | "Please update package to include a native systemd unit file, in order to make it more safe and robust.", fpath); | |
766 | ||
470ab28d | 767 | service = new(SysvStub, 1); |
95ed3294 TA |
768 | if (!service) |
769 | return log_oom(); | |
770 | ||
470ab28d LP |
771 | *service = (SysvStub) { |
772 | .sysv_start_priority = -1, | |
773 | .name = TAKE_PTR(name), | |
774 | .path = TAKE_PTR(fpath), | |
775 | }; | |
95ed3294 TA |
776 | |
777 | r = hashmap_put(all_services, service->name, service); | |
805e5dda | 778 | if (r < 0) |
95ed3294 TA |
779 | return log_oom(); |
780 | ||
470ab28d | 781 | TAKE_PTR(service); |
95ed3294 TA |
782 | } |
783 | } | |
784 | ||
785 | return 0; | |
786 | } | |
787 | ||
a8ffe6fb | 788 | static int set_dependencies_from_rcnd(const LookupPaths *lp, Hashmap *all_services) { |
95ed3294 | 789 | Set *runlevel_services[ELEMENTSOF(rcnd_table)] = {}; |
4143c6c3 | 790 | _cleanup_strv_free_ char **sysvrcnd_path = NULL; |
c279613f | 791 | SysvStub *service; |
c279613f | 792 | int r; |
95ed3294 | 793 | |
c279613f LP |
794 | assert(lp); |
795 | ||
4143c6c3 LP |
796 | r = acquire_search_path(SYSTEM_SYSVRCND_PATH, "SYSTEMD_SYSVRCND_PATH", &sysvrcnd_path); |
797 | if (r < 0) | |
798 | return r; | |
799 | ||
e198eba7 ZJS |
800 | STRV_FOREACH(p, sysvrcnd_path) |
801 | for (unsigned i = 0; i < ELEMENTSOF(rcnd_table); i ++) { | |
c279613f LP |
802 | _cleanup_closedir_ DIR *d = NULL; |
803 | _cleanup_free_ char *path = NULL; | |
95ed3294 | 804 | |
657ee2d8 | 805 | path = path_join(*p, rcnd_table[i].path); |
c279613f LP |
806 | if (!path) { |
807 | r = log_oom(); | |
808 | goto finish; | |
809 | } | |
95ed3294 TA |
810 | |
811 | d = opendir(path); | |
812 | if (!d) { | |
813 | if (errno != ENOENT) | |
c279613f | 814 | log_warning_errno(errno, "Opening %s failed, ignoring: %m", path); |
95ed3294 TA |
815 | |
816 | continue; | |
817 | } | |
818 | ||
8746820b | 819 | FOREACH_DIRENT(de, d, log_warning_errno(errno, "Failed to enumerate directory %s, ignoring: %m", path)) { |
c279613f | 820 | _cleanup_free_ char *name = NULL, *fpath = NULL; |
95ed3294 TA |
821 | int a, b; |
822 | ||
b9c59555 | 823 | if (de->d_name[0] != 'S') |
95ed3294 TA |
824 | continue; |
825 | ||
826 | if (strlen(de->d_name) < 4) | |
827 | continue; | |
828 | ||
829 | a = undecchar(de->d_name[1]); | |
830 | b = undecchar(de->d_name[2]); | |
831 | ||
832 | if (a < 0 || b < 0) | |
833 | continue; | |
834 | ||
657ee2d8 | 835 | fpath = path_join(*p, de->d_name); |
95ed3294 | 836 | if (!fpath) { |
c279613f | 837 | r = log_oom(); |
95ed3294 TA |
838 | goto finish; |
839 | } | |
840 | ||
841 | name = sysv_translate_name(de->d_name + 3); | |
842 | if (!name) { | |
843 | r = log_oom(); | |
844 | goto finish; | |
845 | } | |
846 | ||
8c84621c | 847 | service = hashmap_get(all_services, name); |
9ed794a3 | 848 | if (!service) { |
c279613f | 849 | log_debug("Ignoring %s symlink in %s, not generating %s.", de->d_name, rcnd_table[i].path, name); |
95ed3294 TA |
850 | continue; |
851 | } | |
852 | ||
b9c59555 | 853 | service->sysv_start_priority = MAX(a*10 + b, service->sysv_start_priority); |
95ed3294 | 854 | |
de7fef4b | 855 | r = set_ensure_put(&runlevel_services[i], NULL, service); |
b9c59555 LP |
856 | if (r < 0) { |
857 | log_oom(); | |
858 | goto finish; | |
95ed3294 TA |
859 | } |
860 | } | |
861 | } | |
862 | ||
e198eba7 | 863 | for (unsigned i = 0; i < ELEMENTSOF(rcnd_table); i++) |
90e74a66 | 864 | SET_FOREACH(service, runlevel_services[i]) { |
95ed3294 | 865 | r = strv_extend(&service->before, rcnd_table[i].target); |
c279613f LP |
866 | if (r < 0) { |
867 | log_oom(); | |
868 | goto finish; | |
869 | } | |
260ad50f | 870 | r = strv_extend(&service->wanted_by, rcnd_table[i].target); |
c279613f LP |
871 | if (r < 0) { |
872 | log_oom(); | |
873 | goto finish; | |
874 | } | |
95ed3294 TA |
875 | } |
876 | ||
95ed3294 TA |
877 | r = 0; |
878 | ||
879 | finish: | |
e198eba7 | 880 | for (unsigned i = 0; i < ELEMENTSOF(rcnd_table); i++) |
95ed3294 TA |
881 | set_free(runlevel_services[i]); |
882 | ||
883 | return r; | |
884 | } | |
885 | ||
7a44c7e3 | 886 | static int run(const char *dest, const char *dest_early, const char *dest_late) { |
5921fc3c | 887 | _cleanup_(free_sysvstub_hashmapp) Hashmap *all_services = NULL; |
8e766630 | 888 | _cleanup_(lookup_paths_free) LookupPaths lp = {}; |
95ed3294 | 889 | SysvStub *service; |
c279613f | 890 | int r; |
95ed3294 | 891 | |
7a44c7e3 | 892 | assert_se(arg_dest = dest_late); |
95ed3294 | 893 | |
99aad9a2 | 894 | r = lookup_paths_init_or_warn(&lp, UNIT_FILE_SYSTEM, LOOKUP_PATHS_EXCLUDE_GENERATED, NULL); |
47031c92 | 895 | if (r < 0) |
99aad9a2 | 896 | return r; |
95ed3294 | 897 | |
d5099efc | 898 | all_services = hashmap_new(&string_hash_ops); |
47031c92 ZJS |
899 | if (!all_services) |
900 | return log_oom(); | |
95ed3294 | 901 | |
a8ffe6fb | 902 | r = enumerate_sysv(&lp, all_services); |
c279613f | 903 | if (r < 0) |
47031c92 | 904 | return r; |
95ed3294 | 905 | |
a8ffe6fb | 906 | r = set_dependencies_from_rcnd(&lp, all_services); |
c279613f | 907 | if (r < 0) |
47031c92 | 908 | return r; |
95ed3294 | 909 | |
90e74a66 | 910 | HASHMAP_FOREACH(service, all_services) |
c279613f | 911 | (void) load_sysv(service); |
b3fae863 | 912 | |
90e74a66 | 913 | HASHMAP_FOREACH(service, all_services) { |
c279613f LP |
914 | (void) fix_order(service, all_services); |
915 | (void) generate_unit_file(service); | |
95ed3294 TA |
916 | } |
917 | ||
47031c92 | 918 | return 0; |
95ed3294 | 919 | } |
47031c92 | 920 | |
7a44c7e3 | 921 | DEFINE_MAIN_GENERATOR_FUNCTION(run); |