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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 | ||
f4d4ca6e LP |
7 | #include "sd-messages.h" |
8 | ||
b5efdb8a | 9 | #include "alloc-util.h" |
c279613f | 10 | #include "dirent-util.h" |
41e2036e | 11 | #include "exit-status.h" |
3ffd4af2 | 12 | #include "fd-util.h" |
c279613f | 13 | #include "fileio.h" |
7f0cc637 | 14 | #include "generator.h" |
07630cea | 15 | #include "hashmap.h" |
8fcde012 | 16 | #include "hexdecoct.h" |
3ed075cf | 17 | #include "initrd-util.h" |
07630cea LP |
18 | #include "install.h" |
19 | #include "log.h" | |
5e332028 | 20 | #include "main-func.h" |
95ed3294 | 21 | #include "mkdir.h" |
95ed3294 | 22 | #include "path-lookup.h" |
07630cea | 23 | #include "path-util.h" |
f2341e0a | 24 | #include "set.h" |
07630cea | 25 | #include "special.h" |
98bad05e | 26 | #include "specifier.h" |
8fcde012 | 27 | #include "stat-util.h" |
07630cea LP |
28 | #include "string-util.h" |
29 | #include "strv.h" | |
30 | #include "unit-name.h" | |
95ed3294 | 31 | |
5d97475b LP |
32 | /* 🚨 Note: this generator is deprecated! Please do not add new features! Instead, please port remaining SysV |
33 | * scripts over to native unit files! Thank you! 🚨 */ | |
34 | ||
95ed3294 TA |
35 | static const struct { |
36 | const char *path; | |
37 | const char *target; | |
95ed3294 TA |
38 | } rcnd_table[] = { |
39 | /* Standard SysV runlevels for start-up */ | |
788d2b08 LP |
40 | { "rc1.d", SPECIAL_RESCUE_TARGET }, |
41 | { "rc2.d", SPECIAL_MULTI_USER_TARGET }, | |
42 | { "rc3.d", SPECIAL_MULTI_USER_TARGET }, | |
43 | { "rc4.d", SPECIAL_MULTI_USER_TARGET }, | |
44 | { "rc5.d", SPECIAL_GRAPHICAL_TARGET }, | |
45 | ||
46 | /* We ignore the SysV runlevels for shutdown here, as SysV services get default dependencies anyway, and that | |
47 | * means they are shut down anyway at system power off if running. */ | |
95ed3294 TA |
48 | }; |
49 | ||
7a44c7e3 | 50 | static const char *arg_dest = NULL; |
8fba1c8d | 51 | |
95ed3294 TA |
52 | typedef struct SysvStub { |
53 | char *name; | |
54 | char *path; | |
55 | char *description; | |
56 | int sysv_start_priority; | |
57 | char *pid_file; | |
58 | char **before; | |
59 | char **after; | |
60 | char **wants; | |
260ad50f | 61 | char **wanted_by; |
95ed3294 TA |
62 | bool has_lsb; |
63 | bool reload; | |
c279613f | 64 | bool loaded; |
95ed3294 TA |
65 | } SysvStub; |
66 | ||
75db809a | 67 | static SysvStub* free_sysvstub(SysvStub *s) { |
c279613f | 68 | if (!s) |
75db809a | 69 | return NULL; |
c279613f | 70 | |
8fba1c8d ZJS |
71 | free(s->name); |
72 | free(s->path); | |
73 | free(s->description); | |
74 | free(s->pid_file); | |
75 | strv_free(s->before); | |
76 | strv_free(s->after); | |
77 | strv_free(s->wants); | |
78 | strv_free(s->wanted_by); | |
75db809a | 79 | return mfree(s); |
8fba1c8d | 80 | } |
8fba1c8d ZJS |
81 | DEFINE_TRIVIAL_CLEANUP_FUNC(SysvStub*, free_sysvstub); |
82 | ||
83 | static void free_sysvstub_hashmapp(Hashmap **h) { | |
224b0e7a | 84 | hashmap_free_with_destructor(*h, free_sysvstub); |
8fba1c8d | 85 | } |
95ed3294 | 86 | |
b7e71846 | 87 | static int add_alias(const char *service, const char *alias) { |
8e7e4a73 | 88 | _cleanup_free_ char *link = NULL; |
b7e71846 MB |
89 | |
90 | assert(service); | |
91 | assert(alias); | |
92 | ||
8e7e4a73 LP |
93 | link = path_join(arg_dest, alias); |
94 | if (!link) | |
95 | return -ENOMEM; | |
b7e71846 | 96 | |
8e7e4a73 | 97 | if (symlink(service, link) < 0) { |
b7e71846 MB |
98 | if (errno == EEXIST) |
99 | return 0; | |
c279613f | 100 | |
b7e71846 MB |
101 | return -errno; |
102 | } | |
103 | ||
104 | return 1; | |
105 | } | |
106 | ||
95ed3294 | 107 | static int generate_unit_file(SysvStub *s) { |
8e7e4a73 | 108 | _cleanup_free_ char *path_escaped = NULL, *unit = NULL; |
95ed3294 | 109 | _cleanup_fclose_ FILE *f = NULL; |
95ed3294 TA |
110 | int r; |
111 | ||
c279613f LP |
112 | assert(s); |
113 | ||
114 | if (!s->loaded) | |
115 | return 0; | |
116 | ||
98bad05e LP |
117 | path_escaped = specifier_escape(s->path); |
118 | if (!path_escaped) | |
119 | return log_oom(); | |
120 | ||
8e7e4a73 LP |
121 | unit = path_join(arg_dest, s->name); |
122 | if (!unit) | |
123 | return log_oom(); | |
c279613f | 124 | |
77354c7e MP |
125 | /* We might already have a symlink with the same name from a Provides:, |
126 | * or from backup files like /etc/init.d/foo.bak. Real scripts always win, | |
127 | * so remove an existing link */ | |
4e558983 | 128 | if (is_symlink(unit) > 0) { |
c279613f | 129 | log_warning("Overwriting existing symlink %s with real service.", unit); |
9993ef2e | 130 | (void) unlink(unit); |
77354c7e MP |
131 | } |
132 | ||
95ed3294 | 133 | f = fopen(unit, "wxe"); |
4a62c710 MS |
134 | if (!f) |
135 | return log_error_errno(errno, "Failed to create unit file %s: %m", unit); | |
95ed3294 TA |
136 | |
137 | fprintf(f, | |
138 | "# Automatically generated by systemd-sysv-generator\n\n" | |
139 | "[Unit]\n" | |
aad0a2c8 | 140 | "Documentation=man:systemd-sysv-generator(8)\n" |
c279613f | 141 | "SourcePath=%s\n", |
98bad05e LP |
142 | path_escaped); |
143 | ||
144 | if (s->description) { | |
c2b2df60 | 145 | _cleanup_free_ char *t = NULL; |
c279613f | 146 | |
98bad05e LP |
147 | t = specifier_escape(s->description); |
148 | if (!t) | |
149 | return log_oom(); | |
150 | ||
151 | fprintf(f, "Description=%s\n", t); | |
152 | } | |
95ed3294 | 153 | |
c584ffc0 LN |
154 | STRV_FOREACH(p, s->before) |
155 | fprintf(f, "Before=%s\n", *p); | |
156 | STRV_FOREACH(p, s->after) | |
157 | fprintf(f, "After=%s\n", *p); | |
158 | STRV_FOREACH(p, s->wants) | |
159 | fprintf(f, "Wants=%s\n", *p); | |
95ed3294 TA |
160 | |
161 | fprintf(f, | |
162 | "\n[Service]\n" | |
163 | "Type=forking\n" | |
164 | "Restart=no\n" | |
165 | "TimeoutSec=5min\n" | |
166 | "IgnoreSIGPIPE=no\n" | |
167 | "KillMode=process\n" | |
168 | "GuessMainPID=no\n" | |
169 | "RemainAfterExit=%s\n", | |
170 | yes_no(!s->pid_file)); | |
171 | ||
98bad05e | 172 | if (s->pid_file) { |
c2b2df60 | 173 | _cleanup_free_ char *t = NULL; |
98bad05e LP |
174 | |
175 | t = specifier_escape(s->pid_file); | |
176 | if (!t) | |
177 | return log_oom(); | |
178 | ||
179 | fprintf(f, "PIDFile=%s\n", t); | |
180 | } | |
95ed3294 | 181 | |
41e2036e LP |
182 | /* Consider two special LSB exit codes a clean exit */ |
183 | if (s->has_lsb) | |
184 | fprintf(f, | |
185 | "SuccessExitStatus=%i %i\n", | |
186 | EXIT_NOTINSTALLED, | |
187 | EXIT_NOTCONFIGURED); | |
188 | ||
95ed3294 TA |
189 | fprintf(f, |
190 | "ExecStart=%s start\n" | |
191 | "ExecStop=%s stop\n", | |
98bad05e | 192 | path_escaped, path_escaped); |
95ed3294 TA |
193 | |
194 | if (s->reload) | |
98bad05e | 195 | fprintf(f, "ExecReload=%s reload\n", path_escaped); |
95ed3294 | 196 | |
c279613f LP |
197 | r = fflush_and_check(f); |
198 | if (r < 0) | |
199 | return log_error_errno(r, "Failed to write unit %s: %m", unit); | |
200 | ||
7f0cc637 ZJS |
201 | STRV_FOREACH(p, s->wanted_by) |
202 | (void) generator_add_symlink(arg_dest, *p, "wants", s->name); | |
95ed3294 | 203 | |
c279613f | 204 | return 1; |
95ed3294 TA |
205 | } |
206 | ||
207 | static bool usage_contains_reload(const char *line) { | |
208 | return (strcasestr(line, "{reload|") || | |
209 | strcasestr(line, "{reload}") || | |
210 | strcasestr(line, "{reload\"") || | |
211 | strcasestr(line, "|reload|") || | |
212 | strcasestr(line, "|reload}") || | |
213 | strcasestr(line, "|reload\"")); | |
214 | } | |
215 | ||
216 | static char *sysv_translate_name(const char *name) { | |
0b2ec8a3 DH |
217 | _cleanup_free_ char *c = NULL; |
218 | char *res; | |
95ed3294 | 219 | |
264581a2 FS |
220 | c = strdup(name); |
221 | if (!c) | |
0b2ec8a3 | 222 | return NULL; |
95ed3294 | 223 | |
0b2ec8a3 DH |
224 | res = endswith(c, ".sh"); |
225 | if (res) | |
226 | *res = 0; | |
95ed3294 | 227 | |
37cbc1d5 | 228 | if (unit_name_mangle(c, 0, &res) < 0) |
0b2ec8a3 DH |
229 | return NULL; |
230 | ||
231 | return res; | |
95ed3294 TA |
232 | } |
233 | ||
7532e6d4 | 234 | static int sysv_translate_facility(SysvStub *s, unsigned line, const char *name, char **ret) { |
95ed3294 TA |
235 | |
236 | /* We silently ignore the $ prefix here. According to the LSB | |
237 | * spec it simply indicates whether something is a | |
238 | * standardized name or a distribution-specific one. Since we | |
239 | * just follow what already exists and do not introduce new | |
240 | * uses or names we don't care who introduced a new name. */ | |
241 | ||
242 | static const char * const table[] = { | |
243 | /* LSB defined facilities */ | |
244 | "local_fs", NULL, | |
245 | "network", SPECIAL_NETWORK_ONLINE_TARGET, | |
246 | "named", SPECIAL_NSS_LOOKUP_TARGET, | |
247 | "portmap", SPECIAL_RPCBIND_TARGET, | |
248 | "remote_fs", SPECIAL_REMOTE_FS_TARGET, | |
249 | "syslog", NULL, | |
250 | "time", SPECIAL_TIME_SYNC_TARGET, | |
251 | }; | |
252 | ||
1d8a8a7d | 253 | _cleanup_free_ char *filename = NULL; |
95ed3294 | 254 | const char *n; |
1d8a8a7d | 255 | char *e, *m; |
c279613f | 256 | int r; |
95ed3294 TA |
257 | |
258 | assert(name); | |
7532e6d4 | 259 | assert(s); |
c279613f | 260 | assert(ret); |
95ed3294 | 261 | |
1d8a8a7d LP |
262 | r = path_extract_filename(s->path, &filename); |
263 | if (r < 0) | |
264 | return log_error_errno(r, "Failed to extract file name from path '%s': %m", s->path); | |
7532e6d4 | 265 | |
95ed3294 TA |
266 | n = *name == '$' ? name + 1 : name; |
267 | ||
1d8a8a7d | 268 | for (size_t i = 0; i < ELEMENTSOF(table); i += 2) { |
95ed3294 TA |
269 | if (!streq(table[i], n)) |
270 | continue; | |
271 | ||
e932f540 LP |
272 | if (!table[i+1]) { |
273 | *ret = NULL; | |
95ed3294 | 274 | return 0; |
e932f540 | 275 | } |
95ed3294 | 276 | |
c279613f LP |
277 | m = strdup(table[i+1]); |
278 | if (!m) | |
95ed3294 TA |
279 | return log_oom(); |
280 | ||
c279613f LP |
281 | *ret = m; |
282 | return 1; | |
283 | } | |
284 | ||
285 | /* If we don't know this name, fallback heuristics to figure | |
286 | * out whether something is a target or a service alias. */ | |
287 | ||
288 | /* Facilities starting with $ are most likely targets */ | |
289 | if (*name == '$') { | |
290 | r = unit_name_build(n, NULL, ".target", ret); | |
291 | if (r < 0) | |
7532e6d4 | 292 | return log_error_errno(r, "[%s:%u] Could not build name for facility %s: %m", s->path, line, name); |
c279613f | 293 | |
e932f540 | 294 | return 1; |
95ed3294 TA |
295 | } |
296 | ||
c279613f | 297 | /* Strip ".sh" suffix from file name for comparison */ |
1d8a8a7d LP |
298 | e = endswith(filename, ".sh"); |
299 | if (e) | |
4e488555 | 300 | *e = '\0'; |
29e0e6d8 | 301 | |
c279613f | 302 | /* Names equaling the file name of the services are redundant */ |
e932f540 LP |
303 | if (streq_ptr(n, filename)) { |
304 | *ret = NULL; | |
95ed3294 | 305 | return 0; |
e932f540 | 306 | } |
95ed3294 | 307 | |
c279613f LP |
308 | /* Everything else we assume to be normal service names */ |
309 | m = sysv_translate_name(n); | |
310 | if (!m) | |
311 | return log_oom(); | |
95ed3294 | 312 | |
c279613f | 313 | *ret = m; |
95ed3294 TA |
314 | return 1; |
315 | } | |
316 | ||
1e2fee5f | 317 | static int handle_provides(SysvStub *s, unsigned line, const char *full_text, const char *text) { |
1e2fee5f ZJS |
318 | int r; |
319 | ||
c279613f LP |
320 | assert(s); |
321 | assert(full_text); | |
322 | assert(text); | |
1e2fee5f | 323 | |
c279613f LP |
324 | for (;;) { |
325 | _cleanup_free_ char *word = NULL, *m = NULL; | |
1e2fee5f | 326 | |
4ec85141 | 327 | r = extract_first_word(&text, &word, NULL, EXTRACT_UNQUOTE|EXTRACT_RELAX); |
1e2fee5f | 328 | if (r < 0) |
7532e6d4 | 329 | return log_error_errno(r, "[%s:%u] Failed to parse word from provides string: %m", s->path, line); |
1e2fee5f | 330 | if (r == 0) |
c279613f LP |
331 | break; |
332 | ||
7532e6d4 | 333 | r = sysv_translate_facility(s, line, word, &m); |
c279613f | 334 | if (r <= 0) /* continue on error */ |
1e2fee5f ZJS |
335 | continue; |
336 | ||
c279613f LP |
337 | switch (unit_name_to_type(m)) { |
338 | ||
339 | case UNIT_SERVICE: | |
1e2fee5f ZJS |
340 | log_debug("Adding Provides: alias '%s' for '%s'", m, s->name); |
341 | r = add_alias(s->name, m); | |
e987f2a8 | 342 | if (r < 0) |
f2341e0a | 343 | log_warning_errno(r, "[%s:%u] Failed to add LSB Provides name %s, ignoring: %m", s->path, line, m); |
c279613f LP |
344 | break; |
345 | ||
346 | case UNIT_TARGET: | |
347 | ||
1e2fee5f ZJS |
348 | /* NB: SysV targets which are provided by a |
349 | * service are pulled in by the services, as | |
350 | * an indication that the generic service is | |
351 | * now available. This is strictly one-way. | |
352 | * The targets do NOT pull in SysV services! */ | |
c279613f | 353 | |
1e2fee5f ZJS |
354 | r = strv_extend(&s->before, m); |
355 | if (r < 0) | |
356 | return log_oom(); | |
c279613f | 357 | |
1e2fee5f ZJS |
358 | r = strv_extend(&s->wants, m); |
359 | if (r < 0) | |
360 | return log_oom(); | |
c279613f | 361 | |
1e2fee5f ZJS |
362 | if (streq(m, SPECIAL_NETWORK_ONLINE_TARGET)) { |
363 | r = strv_extend(&s->before, SPECIAL_NETWORK_TARGET); | |
364 | if (r < 0) | |
365 | return log_oom(); | |
bd9ad4ff LN |
366 | r = strv_extend(&s->wants, SPECIAL_NETWORK_TARGET); |
367 | if (r < 0) | |
368 | return log_oom(); | |
1e2fee5f | 369 | } |
c279613f LP |
370 | |
371 | break; | |
372 | ||
373 | case _UNIT_TYPE_INVALID: | |
2c09a745 | 374 | log_warning("Unit name '%s' is invalid", m); |
c279613f LP |
375 | break; |
376 | ||
377 | default: | |
2c09a745 | 378 | log_warning("Unknown unit type for unit '%s'", m); |
c279613f | 379 | } |
1e2fee5f | 380 | } |
c279613f | 381 | |
1e2fee5f ZJS |
382 | return 0; |
383 | } | |
384 | ||
385 | static int handle_dependencies(SysvStub *s, unsigned line, const char *full_text, const char *text) { | |
1e2fee5f ZJS |
386 | int r; |
387 | ||
c279613f LP |
388 | assert(s); |
389 | assert(full_text); | |
390 | assert(text); | |
1e2fee5f | 391 | |
c279613f LP |
392 | for (;;) { |
393 | _cleanup_free_ char *word = NULL, *m = NULL; | |
394 | bool is_before; | |
1e2fee5f | 395 | |
4ec85141 | 396 | r = extract_first_word(&text, &word, NULL, EXTRACT_UNQUOTE|EXTRACT_RELAX); |
c279613f | 397 | if (r < 0) |
7532e6d4 | 398 | return log_error_errno(r, "[%s:%u] Failed to parse word from provides string: %m", s->path, line); |
1e2fee5f | 399 | if (r == 0) |
c279613f LP |
400 | break; |
401 | ||
7532e6d4 | 402 | r = sysv_translate_facility(s, line, word, &m); |
c279613f | 403 | if (r <= 0) /* continue on error */ |
1e2fee5f ZJS |
404 | continue; |
405 | ||
406 | is_before = startswith_no_case(full_text, "X-Start-Before:"); | |
407 | ||
408 | if (streq(m, SPECIAL_NETWORK_ONLINE_TARGET) && !is_before) { | |
409 | /* the network-online target is special, as it needs to be actively pulled in */ | |
410 | r = strv_extend(&s->after, m); | |
411 | if (r < 0) | |
412 | return log_oom(); | |
c279613f | 413 | |
1e2fee5f | 414 | r = strv_extend(&s->wants, m); |
e987f2a8 | 415 | } else |
1e2fee5f | 416 | r = strv_extend(is_before ? &s->before : &s->after, m); |
1e2fee5f | 417 | if (r < 0) |
e987f2a8 | 418 | return log_oom(); |
1e2fee5f | 419 | } |
c279613f | 420 | |
1e2fee5f ZJS |
421 | return 0; |
422 | } | |
423 | ||
95ed3294 | 424 | static int load_sysv(SysvStub *s) { |
c2b2df60 | 425 | _cleanup_fclose_ FILE *f = NULL; |
95ed3294 TA |
426 | unsigned line = 0; |
427 | int r; | |
428 | enum { | |
429 | NORMAL, | |
430 | DESCRIPTION, | |
431 | LSB, | |
432 | LSB_DESCRIPTION, | |
433 | USAGE_CONTINUATION | |
434 | } state = NORMAL; | |
435 | _cleanup_free_ char *short_description = NULL, *long_description = NULL, *chkconfig_description = NULL; | |
436 | char *description; | |
437 | bool supports_reload = false; | |
438 | ||
439 | assert(s); | |
440 | ||
441 | f = fopen(s->path, "re"); | |
c279613f LP |
442 | if (!f) { |
443 | if (errno == ENOENT) | |
444 | return 0; | |
95ed3294 | 445 | |
c279613f LP |
446 | return log_error_errno(errno, "Failed to open %s: %m", s->path); |
447 | } | |
77354c7e | 448 | |
c279613f | 449 | log_debug("Loading SysV script %s", s->path); |
95ed3294 | 450 | |
e393eff6 LP |
451 | for (;;) { |
452 | _cleanup_free_ char *l = NULL; | |
95ed3294 | 453 | |
0ff6ff2b | 454 | r = read_stripped_line(f, LONG_LINE_MAX, &l); |
e393eff6 LP |
455 | if (r < 0) |
456 | return log_error_errno(r, "Failed to read configuration file '%s': %m", s->path); | |
457 | if (r == 0) | |
458 | break; | |
459 | ||
95ed3294 TA |
460 | line++; |
461 | ||
0ff6ff2b | 462 | if (l[0] != '#') { |
95ed3294 TA |
463 | /* Try to figure out whether this init script supports |
464 | * the reload operation. This heuristic looks for | |
465 | * "Usage" lines which include the reload option. */ | |
e393eff6 | 466 | if (state == USAGE_CONTINUATION || |
0ff6ff2b LP |
467 | (state == NORMAL && strcasestr(l, "usage"))) { |
468 | if (usage_contains_reload(l)) { | |
95ed3294 TA |
469 | supports_reload = true; |
470 | state = NORMAL; | |
0ff6ff2b | 471 | } else if (endswith(l, "\\")) |
95ed3294 TA |
472 | state = USAGE_CONTINUATION; |
473 | else | |
474 | state = NORMAL; | |
475 | } | |
476 | ||
477 | continue; | |
478 | } | |
479 | ||
0ff6ff2b | 480 | if (state == NORMAL && streq(l, "### BEGIN INIT INFO")) { |
95ed3294 TA |
481 | state = LSB; |
482 | s->has_lsb = true; | |
483 | continue; | |
484 | } | |
485 | ||
0ff6ff2b | 486 | if (IN_SET(state, LSB_DESCRIPTION, LSB) && streq(l, "### END INIT INFO")) { |
95ed3294 TA |
487 | state = NORMAL; |
488 | continue; | |
489 | } | |
490 | ||
0ff6ff2b | 491 | char *t = l + 1; |
95ed3294 TA |
492 | t += strspn(t, WHITESPACE); |
493 | ||
494 | if (state == NORMAL) { | |
495 | ||
496 | /* Try to parse Red Hat style description */ | |
497 | ||
498 | if (startswith_no_case(t, "description:")) { | |
499 | ||
c279613f | 500 | size_t k; |
859fdd1e | 501 | const char *j; |
95ed3294 | 502 | |
c279613f LP |
503 | k = strlen(t); |
504 | if (k > 0 && t[k-1] == '\\') { | |
95ed3294 TA |
505 | state = DESCRIPTION; |
506 | t[k-1] = 0; | |
507 | } | |
508 | ||
3c6f7c34 | 509 | j = empty_to_null(strstrip(t+12)); |
95ed3294 | 510 | |
c279613f LP |
511 | r = free_and_strdup(&chkconfig_description, j); |
512 | if (r < 0) | |
513 | return log_oom(); | |
95ed3294 TA |
514 | |
515 | } else if (startswith_no_case(t, "pidfile:")) { | |
c279613f | 516 | const char *fn; |
95ed3294 TA |
517 | |
518 | state = NORMAL; | |
519 | ||
520 | fn = strstrip(t+8); | |
521 | if (!path_is_absolute(fn)) { | |
f2341e0a | 522 | log_error("[%s:%u] PID file not absolute. Ignoring.", s->path, line); |
95ed3294 TA |
523 | continue; |
524 | } | |
525 | ||
c279613f LP |
526 | r = free_and_strdup(&s->pid_file, fn); |
527 | if (r < 0) | |
528 | return log_oom(); | |
95ed3294 TA |
529 | } |
530 | ||
531 | } else if (state == DESCRIPTION) { | |
532 | ||
533 | /* Try to parse Red Hat style description | |
534 | * continuation */ | |
535 | ||
c279613f | 536 | size_t k; |
580bf613 | 537 | const char *j; |
95ed3294 | 538 | |
c279613f LP |
539 | k = strlen(t); |
540 | if (k > 0 && t[k-1] == '\\') | |
95ed3294 TA |
541 | t[k-1] = 0; |
542 | else | |
543 | state = NORMAL; | |
544 | ||
545 | j = strstrip(t); | |
580bf613 YW |
546 | if (!isempty(j) && !strextend_with_separator(&chkconfig_description, " ", j)) |
547 | return log_oom(); | |
95ed3294 | 548 | |
3742095b | 549 | } else if (IN_SET(state, LSB, LSB_DESCRIPTION)) { |
95ed3294 TA |
550 | |
551 | if (startswith_no_case(t, "Provides:")) { | |
95ed3294 TA |
552 | state = LSB; |
553 | ||
1e2fee5f ZJS |
554 | r = handle_provides(s, line, t, t + 9); |
555 | if (r < 0) | |
556 | return r; | |
c279613f | 557 | |
95ed3294 TA |
558 | } else if (startswith_no_case(t, "Required-Start:") || |
559 | startswith_no_case(t, "Should-Start:") || | |
560 | startswith_no_case(t, "X-Start-Before:") || | |
561 | startswith_no_case(t, "X-Start-After:")) { | |
95ed3294 TA |
562 | |
563 | state = LSB; | |
564 | ||
1e2fee5f ZJS |
565 | r = handle_dependencies(s, line, t, strchr(t, ':') + 1); |
566 | if (r < 0) | |
567 | return r; | |
95ed3294 | 568 | |
95ed3294 | 569 | } else if (startswith_no_case(t, "Description:")) { |
c279613f | 570 | const char *j; |
95ed3294 TA |
571 | |
572 | state = LSB_DESCRIPTION; | |
573 | ||
3c6f7c34 | 574 | j = empty_to_null(strstrip(t+12)); |
95ed3294 | 575 | |
c279613f LP |
576 | r = free_and_strdup(&long_description, j); |
577 | if (r < 0) | |
578 | return log_oom(); | |
95ed3294 TA |
579 | |
580 | } else if (startswith_no_case(t, "Short-Description:")) { | |
c279613f | 581 | const char *j; |
95ed3294 TA |
582 | |
583 | state = LSB; | |
584 | ||
3c6f7c34 | 585 | j = empty_to_null(strstrip(t+18)); |
95ed3294 | 586 | |
c279613f LP |
587 | r = free_and_strdup(&short_description, j); |
588 | if (r < 0) | |
589 | return log_oom(); | |
95ed3294 TA |
590 | |
591 | } else if (state == LSB_DESCRIPTION) { | |
592 | ||
593 | if (startswith(l, "#\t") || startswith(l, "# ")) { | |
c279613f | 594 | const char *j; |
95ed3294 TA |
595 | |
596 | j = strstrip(t); | |
580bf613 YW |
597 | if (!isempty(j) && !strextend_with_separator(&long_description, " ", j)) |
598 | return log_oom(); | |
95ed3294 TA |
599 | } else |
600 | state = LSB; | |
601 | } | |
602 | } | |
603 | } | |
604 | ||
605 | s->reload = supports_reload; | |
606 | ||
607 | /* We use the long description only if | |
608 | * no short description is set. */ | |
609 | ||
610 | if (short_description) | |
611 | description = short_description; | |
612 | else if (chkconfig_description) | |
613 | description = chkconfig_description; | |
614 | else if (long_description) | |
615 | description = long_description; | |
616 | else | |
617 | description = NULL; | |
618 | ||
619 | if (description) { | |
620 | char *d; | |
621 | ||
b910cc72 | 622 | d = strjoin(s->has_lsb ? "LSB: " : "SYSV: ", description); |
95ed3294 | 623 | if (!d) |
c279613f | 624 | return log_oom(); |
95ed3294 TA |
625 | |
626 | s->description = d; | |
627 | } | |
628 | ||
c279613f | 629 | s->loaded = true; |
95ed3294 TA |
630 | return 0; |
631 | } | |
632 | ||
633 | static int fix_order(SysvStub *s, Hashmap *all_services) { | |
634 | SysvStub *other; | |
95ed3294 TA |
635 | int r; |
636 | ||
637 | assert(s); | |
638 | ||
c279613f LP |
639 | if (!s->loaded) |
640 | return 0; | |
641 | ||
95ed3294 TA |
642 | if (s->sysv_start_priority < 0) |
643 | return 0; | |
644 | ||
90e74a66 | 645 | HASHMAP_FOREACH(other, all_services) { |
95ed3294 TA |
646 | if (s == other) |
647 | continue; | |
648 | ||
c279613f LP |
649 | if (!other->loaded) |
650 | continue; | |
651 | ||
95ed3294 TA |
652 | if (other->sysv_start_priority < 0) |
653 | continue; | |
654 | ||
655 | /* If both units have modern headers we don't care | |
656 | * about the priorities */ | |
657 | if (s->has_lsb && other->has_lsb) | |
658 | continue; | |
659 | ||
660 | if (other->sysv_start_priority < s->sysv_start_priority) { | |
661 | r = strv_extend(&s->after, other->name); | |
662 | if (r < 0) | |
663 | return log_oom(); | |
c279613f LP |
664 | |
665 | } else if (other->sysv_start_priority > s->sysv_start_priority) { | |
95ed3294 TA |
666 | r = strv_extend(&s->before, other->name); |
667 | if (r < 0) | |
668 | return log_oom(); | |
c279613f | 669 | } else |
95ed3294 TA |
670 | continue; |
671 | ||
672 | /* FIXME: Maybe we should compare the name here lexicographically? */ | |
673 | } | |
674 | ||
675 | return 0; | |
676 | } | |
677 | ||
4143c6c3 LP |
678 | static int acquire_search_path(const char *def, const char *envvar, char ***ret) { |
679 | _cleanup_strv_free_ char **l = NULL; | |
680 | const char *e; | |
681 | int r; | |
682 | ||
683 | assert(def); | |
684 | assert(envvar); | |
685 | ||
686 | e = getenv(envvar); | |
687 | if (e) { | |
688 | r = path_split_and_make_absolute(e, &l); | |
689 | if (r < 0) | |
690 | return log_error_errno(r, "Failed to make $%s search path absolute: %m", envvar); | |
691 | } | |
692 | ||
693 | if (strv_isempty(l)) { | |
694 | strv_free(l); | |
695 | ||
bea1a013 | 696 | l = strv_new(def); |
4143c6c3 LP |
697 | if (!l) |
698 | return log_oom(); | |
699 | } | |
700 | ||
701 | if (!path_strv_resolve_uniq(l, NULL)) | |
702 | return log_oom(); | |
703 | ||
ae2a15bc | 704 | *ret = TAKE_PTR(l); |
4143c6c3 LP |
705 | |
706 | return 0; | |
707 | } | |
708 | ||
a8ffe6fb | 709 | static int enumerate_sysv(const LookupPaths *lp, Hashmap *all_services) { |
4143c6c3 | 710 | _cleanup_strv_free_ char **sysvinit_path = NULL; |
0ec0deaa | 711 | int r; |
95ed3294 | 712 | |
c279613f | 713 | assert(lp); |
c279613f | 714 | |
4143c6c3 LP |
715 | r = acquire_search_path(SYSTEM_SYSVINIT_PATH, "SYSTEMD_SYSVINIT_PATH", &sysvinit_path); |
716 | if (r < 0) | |
717 | return r; | |
718 | ||
719 | STRV_FOREACH(path, sysvinit_path) { | |
95ed3294 | 720 | _cleanup_closedir_ DIR *d = NULL; |
95ed3294 TA |
721 | |
722 | d = opendir(*path); | |
723 | if (!d) { | |
724 | if (errno != ENOENT) | |
c279613f | 725 | log_warning_errno(errno, "Opening %s failed, ignoring: %m", *path); |
95ed3294 TA |
726 | continue; |
727 | } | |
728 | ||
c279613f | 729 | FOREACH_DIRENT(de, d, log_error_errno(errno, "Failed to enumerate directory %s, ignoring: %m", *path)) { |
95ed3294 | 730 | _cleanup_free_ char *fpath = NULL, *name = NULL; |
8fba1c8d | 731 | _cleanup_(free_sysvstubp) SysvStub *service = NULL; |
805e5dda | 732 | struct stat st; |
95ed3294 | 733 | |
7b729f86 | 734 | if (fstatat(dirfd(d), de->d_name, &st, 0) < 0) { |
c279613f | 735 | log_warning_errno(errno, "stat() failed on %s/%s, ignoring: %m", *path, de->d_name); |
95ed3294 | 736 | continue; |
805e5dda | 737 | } |
95ed3294 TA |
738 | |
739 | if (!(st.st_mode & S_IXUSR)) | |
740 | continue; | |
741 | ||
805e5dda LP |
742 | if (!S_ISREG(st.st_mode)) |
743 | continue; | |
744 | ||
95ed3294 TA |
745 | name = sysv_translate_name(de->d_name); |
746 | if (!name) | |
747 | return log_oom(); | |
748 | ||
a986501b LP |
749 | if (hashmap_contains(all_services, name)) |
750 | continue; | |
751 | ||
4870133b | 752 | r = unit_file_exists(RUNTIME_SCOPE_SYSTEM, lp, name); |
76ec966f | 753 | if (r < 0 && !IN_SET(r, -ELOOP, -ERFKILL, -EADDRNOTAVAIL)) { |
0ec0deaa LP |
754 | log_debug_errno(r, "Failed to detect whether %s exists, skipping: %m", name); |
755 | continue; | |
3c6d8e57 | 756 | } else if (r != 0) { |
0ec0deaa | 757 | log_debug("Native unit for %s already exists, skipping.", name); |
f4f01ec1 MP |
758 | continue; |
759 | } | |
760 | ||
657ee2d8 | 761 | fpath = path_join(*path, de->d_name); |
c279613f LP |
762 | if (!fpath) |
763 | return log_oom(); | |
764 | ||
f4d4ca6e LP |
765 | log_struct(LOG_WARNING, |
766 | LOG_MESSAGE("SysV service '%s' lacks a native systemd unit file. " | |
767 | "%s Automatically generating a unit file for compatibility. Please update package to include a native systemd unit file, in order to make it safe, robust and future-proof. " | |
768 | "%s This compatibility logic is deprecated, expect removal soon. %s", | |
769 | fpath, | |
770 | special_glyph(SPECIAL_GLYPH_RECYCLING), | |
771 | special_glyph(SPECIAL_GLYPH_WARNING_SIGN), special_glyph(SPECIAL_GLYPH_WARNING_SIGN)), | |
772 | "MESSAGE_ID=" SD_MESSAGE_SYSV_GENERATOR_DEPRECATED_STR, | |
773 | "SYSVSCRIPT=%s", fpath, | |
774 | "UNIT=%s", name); | |
0e42cbe2 | 775 | |
470ab28d | 776 | service = new(SysvStub, 1); |
95ed3294 TA |
777 | if (!service) |
778 | return log_oom(); | |
779 | ||
470ab28d LP |
780 | *service = (SysvStub) { |
781 | .sysv_start_priority = -1, | |
782 | .name = TAKE_PTR(name), | |
783 | .path = TAKE_PTR(fpath), | |
784 | }; | |
95ed3294 TA |
785 | |
786 | r = hashmap_put(all_services, service->name, service); | |
805e5dda | 787 | if (r < 0) |
95ed3294 TA |
788 | return log_oom(); |
789 | ||
470ab28d | 790 | TAKE_PTR(service); |
95ed3294 TA |
791 | } |
792 | } | |
793 | ||
794 | return 0; | |
795 | } | |
796 | ||
a8ffe6fb | 797 | static int set_dependencies_from_rcnd(const LookupPaths *lp, Hashmap *all_services) { |
95ed3294 | 798 | Set *runlevel_services[ELEMENTSOF(rcnd_table)] = {}; |
4143c6c3 | 799 | _cleanup_strv_free_ char **sysvrcnd_path = NULL; |
c279613f | 800 | SysvStub *service; |
c279613f | 801 | int r; |
95ed3294 | 802 | |
c279613f LP |
803 | assert(lp); |
804 | ||
4143c6c3 LP |
805 | r = acquire_search_path(SYSTEM_SYSVRCND_PATH, "SYSTEMD_SYSVRCND_PATH", &sysvrcnd_path); |
806 | if (r < 0) | |
807 | return r; | |
808 | ||
e198eba7 | 809 | STRV_FOREACH(p, sysvrcnd_path) |
b3a9d980 | 810 | for (unsigned i = 0; i < ELEMENTSOF(rcnd_table); i++) { |
c279613f LP |
811 | _cleanup_closedir_ DIR *d = NULL; |
812 | _cleanup_free_ char *path = NULL; | |
95ed3294 | 813 | |
657ee2d8 | 814 | path = path_join(*p, rcnd_table[i].path); |
c279613f LP |
815 | if (!path) { |
816 | r = log_oom(); | |
817 | goto finish; | |
818 | } | |
95ed3294 TA |
819 | |
820 | d = opendir(path); | |
821 | if (!d) { | |
822 | if (errno != ENOENT) | |
c279613f | 823 | log_warning_errno(errno, "Opening %s failed, ignoring: %m", path); |
95ed3294 TA |
824 | |
825 | continue; | |
826 | } | |
827 | ||
8746820b | 828 | FOREACH_DIRENT(de, d, log_warning_errno(errno, "Failed to enumerate directory %s, ignoring: %m", path)) { |
c279613f | 829 | _cleanup_free_ char *name = NULL, *fpath = NULL; |
95ed3294 TA |
830 | int a, b; |
831 | ||
b9c59555 | 832 | if (de->d_name[0] != 'S') |
95ed3294 TA |
833 | continue; |
834 | ||
835 | if (strlen(de->d_name) < 4) | |
836 | continue; | |
837 | ||
838 | a = undecchar(de->d_name[1]); | |
839 | b = undecchar(de->d_name[2]); | |
840 | ||
841 | if (a < 0 || b < 0) | |
842 | continue; | |
843 | ||
657ee2d8 | 844 | fpath = path_join(*p, de->d_name); |
95ed3294 | 845 | if (!fpath) { |
c279613f | 846 | r = log_oom(); |
95ed3294 TA |
847 | goto finish; |
848 | } | |
849 | ||
850 | name = sysv_translate_name(de->d_name + 3); | |
851 | if (!name) { | |
852 | r = log_oom(); | |
853 | goto finish; | |
854 | } | |
855 | ||
8c84621c | 856 | service = hashmap_get(all_services, name); |
9ed794a3 | 857 | if (!service) { |
c279613f | 858 | log_debug("Ignoring %s symlink in %s, not generating %s.", de->d_name, rcnd_table[i].path, name); |
95ed3294 TA |
859 | continue; |
860 | } | |
861 | ||
b9c59555 | 862 | service->sysv_start_priority = MAX(a*10 + b, service->sysv_start_priority); |
95ed3294 | 863 | |
de7fef4b | 864 | r = set_ensure_put(&runlevel_services[i], NULL, service); |
b9c59555 LP |
865 | if (r < 0) { |
866 | log_oom(); | |
867 | goto finish; | |
95ed3294 TA |
868 | } |
869 | } | |
870 | } | |
871 | ||
e198eba7 | 872 | for (unsigned i = 0; i < ELEMENTSOF(rcnd_table); i++) |
90e74a66 | 873 | SET_FOREACH(service, runlevel_services[i]) { |
95ed3294 | 874 | r = strv_extend(&service->before, rcnd_table[i].target); |
c279613f LP |
875 | if (r < 0) { |
876 | log_oom(); | |
877 | goto finish; | |
878 | } | |
260ad50f | 879 | r = strv_extend(&service->wanted_by, rcnd_table[i].target); |
c279613f LP |
880 | if (r < 0) { |
881 | log_oom(); | |
882 | goto finish; | |
883 | } | |
95ed3294 TA |
884 | } |
885 | ||
95ed3294 TA |
886 | r = 0; |
887 | ||
888 | finish: | |
e198eba7 | 889 | for (unsigned i = 0; i < ELEMENTSOF(rcnd_table); i++) |
95ed3294 TA |
890 | set_free(runlevel_services[i]); |
891 | ||
892 | return r; | |
893 | } | |
894 | ||
7a44c7e3 | 895 | static int run(const char *dest, const char *dest_early, const char *dest_late) { |
5921fc3c | 896 | _cleanup_(free_sysvstub_hashmapp) Hashmap *all_services = NULL; |
7dfc7139 | 897 | _cleanup_(lookup_paths_done) LookupPaths lp = {}; |
95ed3294 | 898 | SysvStub *service; |
c279613f | 899 | int r; |
95ed3294 | 900 | |
3ed075cf LP |
901 | if (in_initrd()) { |
902 | log_debug("Skipping generator, running in the initrd."); | |
903 | return EXIT_SUCCESS; | |
904 | } | |
905 | ||
7a44c7e3 | 906 | assert_se(arg_dest = dest_late); |
95ed3294 | 907 | |
4870133b | 908 | r = lookup_paths_init_or_warn(&lp, RUNTIME_SCOPE_SYSTEM, LOOKUP_PATHS_EXCLUDE_GENERATED, NULL); |
47031c92 | 909 | if (r < 0) |
99aad9a2 | 910 | return r; |
95ed3294 | 911 | |
d5099efc | 912 | all_services = hashmap_new(&string_hash_ops); |
47031c92 ZJS |
913 | if (!all_services) |
914 | return log_oom(); | |
95ed3294 | 915 | |
a8ffe6fb | 916 | r = enumerate_sysv(&lp, all_services); |
c279613f | 917 | if (r < 0) |
47031c92 | 918 | return r; |
95ed3294 | 919 | |
a8ffe6fb | 920 | r = set_dependencies_from_rcnd(&lp, all_services); |
c279613f | 921 | if (r < 0) |
47031c92 | 922 | return r; |
95ed3294 | 923 | |
90e74a66 | 924 | HASHMAP_FOREACH(service, all_services) |
c279613f | 925 | (void) load_sysv(service); |
b3fae863 | 926 | |
90e74a66 | 927 | HASHMAP_FOREACH(service, all_services) { |
c279613f LP |
928 | (void) fix_order(service, all_services); |
929 | (void) generate_unit_file(service); | |
95ed3294 TA |
930 | } |
931 | ||
47031c92 | 932 | return 0; |
95ed3294 | 933 | } |
47031c92 | 934 | |
7a44c7e3 | 935 | DEFINE_MAIN_GENERATOR_FUNCTION(run); |