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Commit | Line | Data |
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0f113f3e | 1 | /* |
22e27978 | 2 | * Copyright 2002-2020 The OpenSSL Project Authors. All Rights Reserved. |
bc37d996 | 3 | * |
2044d382 | 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
62867571 RS |
5 | * this file except in compliance with the License. You can obtain a copy |
6 | * in the file LICENSE in the source distribution or at | |
7 | * https://www.openssl.org/source/license.html | |
bc37d996 DSH |
8 | */ |
9 | ||
e4468e6d P |
10 | /* We need to use some engine deprecated APIs */ |
11 | #define OPENSSL_SUPPRESS_DEPRECATED | |
12 | ||
07016a8a | 13 | #include "internal/cryptlib.h" |
bc37d996 | 14 | #include <stdio.h> |
df5eaa8a | 15 | #include <ctype.h> |
bc37d996 | 16 | #include <openssl/crypto.h> |
cbf6959f | 17 | #include "internal/conf.h" |
55c61473 | 18 | #include "openssl/conf_api.h" |
921de151 | 19 | #include "internal/dso.h" |
22e27978 | 20 | #include "internal/thread_once.h" |
bc37d996 | 21 | #include <openssl/x509.h> |
0196ad63 | 22 | #include <openssl/trace.h> |
22e27978 | 23 | #include <openssl/engine.h> |
bc37d996 | 24 | |
852c2ed2 RS |
25 | DEFINE_STACK_OF(CONF_MODULE) |
26 | DEFINE_STACK_OF(CONF_IMODULE) | |
27 | ||
bc37d996 DSH |
28 | #define DSO_mod_init_name "OPENSSL_init" |
29 | #define DSO_mod_finish_name "OPENSSL_finish" | |
30 | ||
0f113f3e MC |
31 | /* |
32 | * This structure contains a data about supported modules. entries in this | |
33 | * table correspond to either dynamic or static modules. | |
bc37d996 DSH |
34 | */ |
35 | ||
0f113f3e MC |
36 | struct conf_module_st { |
37 | /* DSO of this module or NULL if static */ | |
38 | DSO *dso; | |
39 | /* Name of the module */ | |
40 | char *name; | |
41 | /* Init function */ | |
42 | conf_init_func *init; | |
43 | /* Finish function */ | |
44 | conf_finish_func *finish; | |
45 | /* Number of successfully initialized modules */ | |
46 | int links; | |
47 | void *usr_data; | |
48 | }; | |
49 | ||
50 | /* | |
51 | * This structure contains information about modules that have been | |
52 | * successfully initialized. There may be more than one entry for a given | |
53 | * module. | |
bc37d996 DSH |
54 | */ |
55 | ||
0f113f3e MC |
56 | struct conf_imodule_st { |
57 | CONF_MODULE *pmod; | |
58 | char *name; | |
59 | char *value; | |
60 | unsigned long flags; | |
61 | void *usr_data; | |
62 | }; | |
bc37d996 DSH |
63 | |
64 | static STACK_OF(CONF_MODULE) *supported_modules = NULL; | |
65 | static STACK_OF(CONF_IMODULE) *initialized_modules = NULL; | |
66 | ||
22e27978 SL |
67 | static CRYPTO_ONCE load_builtin_modules = CRYPTO_ONCE_STATIC_INIT; |
68 | ||
bc37d996 DSH |
69 | static void module_free(CONF_MODULE *md); |
70 | static void module_finish(CONF_IMODULE *imod); | |
159b9a4d | 71 | static int module_run(const CONF *cnf, const char *name, const char *value, |
0f113f3e | 72 | unsigned long flags); |
cca28b29 | 73 | static CONF_MODULE *module_add(DSO *dso, const char *name, |
0f113f3e MC |
74 | conf_init_func *ifunc, |
75 | conf_finish_func *ffunc); | |
159b9a4d F |
76 | static CONF_MODULE *module_find(const char *name); |
77 | static int module_init(CONF_MODULE *pmod, const char *name, const char *value, | |
0f113f3e | 78 | const CONF *cnf); |
02e112a8 | 79 | static CONF_MODULE *module_load_dso(const CONF *cnf, const char *name, |
159b9a4d | 80 | const char *value); |
bc37d996 | 81 | |
33855c0a P |
82 | static int conf_diagnostics(const CONF *cnf) |
83 | { | |
55c61473 | 84 | return _CONF_get_number(cnf, NULL, "config_diagnostics") != 0; |
33855c0a P |
85 | } |
86 | ||
bc37d996 DSH |
87 | /* Main function: load modules from a CONF structure */ |
88 | ||
9dd5ae65 | 89 | int CONF_modules_load(const CONF *cnf, const char *appname, |
0f113f3e MC |
90 | unsigned long flags) |
91 | { | |
92 | STACK_OF(CONF_VALUE) *values; | |
93 | CONF_VALUE *vl; | |
94 | char *vsection = NULL; | |
0f113f3e | 95 | int ret, i; |
bc37d996 | 96 | |
0f113f3e MC |
97 | if (!cnf) |
98 | return 1; | |
bc37d996 | 99 | |
33855c0a P |
100 | if (conf_diagnostics(cnf)) |
101 | flags &= ~(CONF_MFLAGS_IGNORE_ERRORS | |
102 | | CONF_MFLAGS_IGNORE_RETURN_CODES | |
103 | | CONF_MFLAGS_SILENT | |
104 | | CONF_MFLAGS_IGNORE_MISSING_FILE); | |
105 | ||
55c61473 | 106 | ERR_set_mark(); |
0f113f3e MC |
107 | if (appname) |
108 | vsection = NCONF_get_string(cnf, NULL, appname); | |
bc37d996 | 109 | |
0f113f3e MC |
110 | if (!appname || (!vsection && (flags & CONF_MFLAGS_DEFAULT_SECTION))) |
111 | vsection = NCONF_get_string(cnf, NULL, "openssl_conf"); | |
bc37d996 | 112 | |
0f113f3e | 113 | if (!vsection) { |
55c61473 | 114 | ERR_pop_to_mark(); |
0f113f3e MC |
115 | return 1; |
116 | } | |
bc37d996 | 117 | |
0196ad63 | 118 | OSSL_TRACE1(CONF, "Configuration in section %s\n", vsection); |
0f113f3e | 119 | values = NCONF_get_section(cnf, vsection); |
bc37d996 | 120 | |
33b4f731 P |
121 | if (values == NULL) { |
122 | if (!(flags & CONF_MFLAGS_SILENT)) { | |
55c61473 | 123 | ERR_clear_last_mark(); |
33b4f731 P |
124 | CONFerr(0, CONF_R_OPENSSL_CONF_REFERENCES_MISSING_SECTION); |
125 | ERR_add_error_data(2, "openssl_conf=", vsection); | |
55c61473 DDO |
126 | } else { |
127 | ERR_pop_to_mark(); | |
33b4f731 | 128 | } |
0f113f3e | 129 | return 0; |
33b4f731 | 130 | } |
55c61473 | 131 | ERR_pop_to_mark(); |
bc37d996 | 132 | |
0f113f3e MC |
133 | for (i = 0; i < sk_CONF_VALUE_num(values); i++) { |
134 | vl = sk_CONF_VALUE_value(values, i); | |
55c61473 | 135 | ERR_set_mark(); |
0f113f3e | 136 | ret = module_run(cnf, vl->name, vl->value, flags); |
0196ad63 RL |
137 | OSSL_TRACE3(CONF, "Running module %s (%s) returned %d\n", |
138 | vl->name, vl->value, ret); | |
0f113f3e | 139 | if (ret <= 0) |
55c61473 DDO |
140 | if (!(flags & CONF_MFLAGS_IGNORE_ERRORS)) { |
141 | ERR_clear_last_mark(); | |
0f113f3e | 142 | return ret; |
55c61473 DDO |
143 | } |
144 | ERR_pop_to_mark(); | |
0f113f3e | 145 | } |
bc37d996 | 146 | |
0f113f3e | 147 | return 1; |
bc37d996 | 148 | |
0f113f3e | 149 | } |
bc37d996 | 150 | |
d8652be0 MC |
151 | int CONF_modules_load_file_ex(OPENSSL_CTX *libctx, const char *filename, |
152 | const char *appname, unsigned long flags) | |
0f113f3e MC |
153 | { |
154 | char *file = NULL; | |
155 | CONF *conf = NULL; | |
33855c0a | 156 | int ret = 0, diagnostics = 0; |
22e27978 | 157 | |
55c61473 | 158 | ERR_set_mark(); |
d8652be0 | 159 | conf = NCONF_new_ex(libctx, NULL); |
90945fa3 | 160 | if (conf == NULL) |
0f113f3e MC |
161 | goto err; |
162 | ||
163 | if (filename == NULL) { | |
164 | file = CONF_get1_default_config_file(); | |
22e27978 | 165 | if (file == NULL) |
0f113f3e | 166 | goto err; |
22e27978 | 167 | } else { |
0f113f3e | 168 | file = (char *)filename; |
22e27978 | 169 | } |
0f113f3e MC |
170 | |
171 | if (NCONF_load(conf, file, NULL) <= 0) { | |
172 | if ((flags & CONF_MFLAGS_IGNORE_MISSING_FILE) && | |
173 | (ERR_GET_REASON(ERR_peek_last_error()) == CONF_R_NO_SUCH_FILE)) { | |
0f113f3e MC |
174 | ret = 1; |
175 | } | |
176 | goto err; | |
177 | } | |
178 | ||
179 | ret = CONF_modules_load(conf, appname, flags); | |
33855c0a | 180 | diagnostics = conf_diagnostics(conf); |
0f113f3e MC |
181 | |
182 | err: | |
183 | if (filename == NULL) | |
184 | OPENSSL_free(file); | |
185 | NCONF_free(conf); | |
186 | ||
33855c0a | 187 | if ((flags & CONF_MFLAGS_IGNORE_RETURN_CODES) != 0 && !diagnostics) |
55c61473 | 188 | ret = 1; |
df1f538f | 189 | |
55c61473 DDO |
190 | if (ret) |
191 | ERR_pop_to_mark(); | |
192 | else | |
193 | ERR_clear_last_mark(); | |
0f113f3e MC |
194 | return ret; |
195 | } | |
bc37d996 | 196 | |
22e27978 SL |
197 | int CONF_modules_load_file(const char *filename, |
198 | const char *appname, unsigned long flags) | |
199 | { | |
d8652be0 | 200 | return CONF_modules_load_file_ex(NULL, filename, appname, flags); |
22e27978 SL |
201 | } |
202 | ||
203 | DEFINE_RUN_ONCE_STATIC(do_load_builtin_modules) | |
204 | { | |
205 | OPENSSL_load_builtin_modules(); | |
206 | #ifndef OPENSSL_NO_ENGINE | |
207 | /* Need to load ENGINEs */ | |
208 | ENGINE_load_builtin_engines(); | |
209 | #endif | |
210 | ERR_clear_error(); | |
211 | return 1; | |
212 | } | |
213 | ||
159b9a4d | 214 | static int module_run(const CONF *cnf, const char *name, const char *value, |
0f113f3e MC |
215 | unsigned long flags) |
216 | { | |
217 | CONF_MODULE *md; | |
218 | int ret; | |
219 | ||
22e27978 SL |
220 | if (!RUN_ONCE(&load_builtin_modules, do_load_builtin_modules)) |
221 | return -1; | |
222 | ||
0f113f3e MC |
223 | md = module_find(name); |
224 | ||
225 | /* Module not found: try to load DSO */ | |
226 | if (!md && !(flags & CONF_MFLAGS_NO_DSO)) | |
a773b52a | 227 | md = module_load_dso(cnf, name, value); |
0f113f3e MC |
228 | |
229 | if (!md) { | |
230 | if (!(flags & CONF_MFLAGS_SILENT)) { | |
231 | CONFerr(CONF_F_MODULE_RUN, CONF_R_UNKNOWN_MODULE_NAME); | |
232 | ERR_add_error_data(2, "module=", name); | |
233 | } | |
234 | return -1; | |
235 | } | |
236 | ||
237 | ret = module_init(md, name, value, cnf); | |
238 | ||
239 | if (ret <= 0) { | |
240 | if (!(flags & CONF_MFLAGS_SILENT)) { | |
241 | char rcode[DECIMAL_SIZE(ret) + 1]; | |
a2371fa9 | 242 | |
0f113f3e | 243 | CONFerr(CONF_F_MODULE_RUN, CONF_R_MODULE_INITIALIZATION_ERROR); |
a2371fa9 | 244 | BIO_snprintf(rcode, sizeof(rcode), "%-8d", ret); |
0f113f3e MC |
245 | ERR_add_error_data(6, "module=", name, ", value=", value, |
246 | ", retcode=", rcode); | |
247 | } | |
248 | } | |
249 | ||
250 | return ret; | |
251 | } | |
bc37d996 DSH |
252 | |
253 | /* Load a module from a DSO */ | |
02e112a8 | 254 | static CONF_MODULE *module_load_dso(const CONF *cnf, |
159b9a4d | 255 | const char *name, const char *value) |
0f113f3e MC |
256 | { |
257 | DSO *dso = NULL; | |
258 | conf_init_func *ifunc; | |
259 | conf_finish_func *ffunc; | |
159b9a4d | 260 | const char *path = NULL; |
0f113f3e MC |
261 | int errcode = 0; |
262 | CONF_MODULE *md; | |
12a765a5 | 263 | |
0f113f3e | 264 | /* Look for alternative path in module section */ |
55c61473 | 265 | path = _CONF_get_string(cnf, value, "path"); |
12a765a5 | 266 | if (path == NULL) { |
0f113f3e MC |
267 | path = name; |
268 | } | |
269 | dso = DSO_load(NULL, path, NULL, 0); | |
12a765a5 | 270 | if (dso == NULL) { |
0f113f3e MC |
271 | errcode = CONF_R_ERROR_LOADING_DSO; |
272 | goto err; | |
273 | } | |
274 | ifunc = (conf_init_func *)DSO_bind_func(dso, DSO_mod_init_name); | |
12a765a5 | 275 | if (ifunc == NULL) { |
0f113f3e MC |
276 | errcode = CONF_R_MISSING_INIT_FUNCTION; |
277 | goto err; | |
278 | } | |
279 | ffunc = (conf_finish_func *)DSO_bind_func(dso, DSO_mod_finish_name); | |
280 | /* All OK, add module */ | |
281 | md = module_add(dso, name, ifunc, ffunc); | |
282 | ||
12a765a5 | 283 | if (md == NULL) |
0f113f3e MC |
284 | goto err; |
285 | ||
286 | return md; | |
287 | ||
288 | err: | |
efa7dd64 | 289 | DSO_free(dso); |
0f113f3e MC |
290 | CONFerr(CONF_F_MODULE_LOAD_DSO, errcode); |
291 | ERR_add_error_data(4, "module=", name, ", path=", path); | |
292 | return NULL; | |
293 | } | |
bc37d996 DSH |
294 | |
295 | /* add module to list */ | |
cca28b29 | 296 | static CONF_MODULE *module_add(DSO *dso, const char *name, |
0f113f3e MC |
297 | conf_init_func *ifunc, conf_finish_func *ffunc) |
298 | { | |
299 | CONF_MODULE *tmod = NULL; | |
300 | if (supported_modules == NULL) | |
301 | supported_modules = sk_CONF_MODULE_new_null(); | |
302 | if (supported_modules == NULL) | |
303 | return NULL; | |
cdb10bae RS |
304 | if ((tmod = OPENSSL_zalloc(sizeof(*tmod))) == NULL) { |
305 | CONFerr(CONF_F_MODULE_ADD, ERR_R_MALLOC_FAILURE); | |
0f113f3e | 306 | return NULL; |
cdb10bae | 307 | } |
0f113f3e MC |
308 | |
309 | tmod->dso = dso; | |
7644a9ae | 310 | tmod->name = OPENSSL_strdup(name); |
0f113f3e MC |
311 | tmod->init = ifunc; |
312 | tmod->finish = ffunc; | |
b7b8e948 DM |
313 | if (tmod->name == NULL) { |
314 | OPENSSL_free(tmod); | |
315 | return NULL; | |
316 | } | |
0f113f3e MC |
317 | |
318 | if (!sk_CONF_MODULE_push(supported_modules, tmod)) { | |
b7b8e948 | 319 | OPENSSL_free(tmod->name); |
0f113f3e MC |
320 | OPENSSL_free(tmod); |
321 | return NULL; | |
322 | } | |
323 | ||
324 | return tmod; | |
325 | } | |
326 | ||
327 | /* | |
328 | * Find a module from the list. We allow module names of the form | |
329 | * modname.XXXX to just search for modname to allow the same module to be | |
330 | * initialized more than once. | |
bc37d996 DSH |
331 | */ |
332 | ||
159b9a4d | 333 | static CONF_MODULE *module_find(const char *name) |
0f113f3e MC |
334 | { |
335 | CONF_MODULE *tmod; | |
336 | int i, nchar; | |
337 | char *p; | |
338 | p = strrchr(name, '.'); | |
bc37d996 | 339 | |
0f113f3e MC |
340 | if (p) |
341 | nchar = p - name; | |
342 | else | |
343 | nchar = strlen(name); | |
bc37d996 | 344 | |
0f113f3e MC |
345 | for (i = 0; i < sk_CONF_MODULE_num(supported_modules); i++) { |
346 | tmod = sk_CONF_MODULE_value(supported_modules, i); | |
86885c28 | 347 | if (strncmp(tmod->name, name, nchar) == 0) |
0f113f3e MC |
348 | return tmod; |
349 | } | |
bc37d996 | 350 | |
0f113f3e | 351 | return NULL; |
bc37d996 | 352 | |
0f113f3e | 353 | } |
bc37d996 DSH |
354 | |
355 | /* initialize a module */ | |
159b9a4d | 356 | static int module_init(CONF_MODULE *pmod, const char *name, const char *value, |
0f113f3e MC |
357 | const CONF *cnf) |
358 | { | |
359 | int ret = 1; | |
360 | int init_called = 0; | |
361 | CONF_IMODULE *imod = NULL; | |
362 | ||
363 | /* Otherwise add initialized module to list */ | |
b4faea50 | 364 | imod = OPENSSL_malloc(sizeof(*imod)); |
90945fa3 | 365 | if (imod == NULL) |
0f113f3e MC |
366 | goto err; |
367 | ||
368 | imod->pmod = pmod; | |
7644a9ae RS |
369 | imod->name = OPENSSL_strdup(name); |
370 | imod->value = OPENSSL_strdup(value); | |
0f113f3e MC |
371 | imod->usr_data = NULL; |
372 | ||
373 | if (!imod->name || !imod->value) | |
374 | goto memerr; | |
375 | ||
376 | /* Try to initialize module */ | |
377 | if (pmod->init) { | |
378 | ret = pmod->init(imod, cnf); | |
379 | init_called = 1; | |
380 | /* Error occurred, exit */ | |
381 | if (ret <= 0) | |
382 | goto err; | |
383 | } | |
384 | ||
385 | if (initialized_modules == NULL) { | |
386 | initialized_modules = sk_CONF_IMODULE_new_null(); | |
387 | if (!initialized_modules) { | |
388 | CONFerr(CONF_F_MODULE_INIT, ERR_R_MALLOC_FAILURE); | |
389 | goto err; | |
390 | } | |
391 | } | |
392 | ||
393 | if (!sk_CONF_IMODULE_push(initialized_modules, imod)) { | |
394 | CONFerr(CONF_F_MODULE_INIT, ERR_R_MALLOC_FAILURE); | |
395 | goto err; | |
396 | } | |
397 | ||
398 | pmod->links++; | |
399 | ||
400 | return ret; | |
401 | ||
402 | err: | |
403 | ||
404 | /* We've started the module so we'd better finish it */ | |
405 | if (pmod->finish && init_called) | |
406 | pmod->finish(imod); | |
407 | ||
408 | memerr: | |
409 | if (imod) { | |
b548a1f1 RS |
410 | OPENSSL_free(imod->name); |
411 | OPENSSL_free(imod->value); | |
0f113f3e MC |
412 | OPENSSL_free(imod); |
413 | } | |
414 | ||
415 | return -1; | |
416 | ||
417 | } | |
418 | ||
419 | /* | |
420 | * Unload any dynamic modules that have a link count of zero: i.e. have no | |
421 | * active initialized modules. If 'all' is set then all modules are unloaded | |
422 | * including static ones. | |
bc37d996 DSH |
423 | */ |
424 | ||
425 | void CONF_modules_unload(int all) | |
0f113f3e MC |
426 | { |
427 | int i; | |
428 | CONF_MODULE *md; | |
429 | CONF_modules_finish(); | |
430 | /* unload modules in reverse order */ | |
431 | for (i = sk_CONF_MODULE_num(supported_modules) - 1; i >= 0; i--) { | |
432 | md = sk_CONF_MODULE_value(supported_modules, i); | |
433 | /* If static or in use and 'all' not set ignore it */ | |
434 | if (((md->links > 0) || !md->dso) && !all) | |
435 | continue; | |
436 | /* Since we're working in reverse this is OK */ | |
437 | (void)sk_CONF_MODULE_delete(supported_modules, i); | |
438 | module_free(md); | |
439 | } | |
440 | if (sk_CONF_MODULE_num(supported_modules) == 0) { | |
441 | sk_CONF_MODULE_free(supported_modules); | |
442 | supported_modules = NULL; | |
443 | } | |
444 | } | |
bc37d996 DSH |
445 | |
446 | /* unload a single module */ | |
447 | static void module_free(CONF_MODULE *md) | |
0f113f3e | 448 | { |
efa7dd64 | 449 | DSO_free(md->dso); |
0f113f3e MC |
450 | OPENSSL_free(md->name); |
451 | OPENSSL_free(md); | |
452 | } | |
bc37d996 DSH |
453 | |
454 | /* finish and free up all modules instances */ | |
455 | ||
456 | void CONF_modules_finish(void) | |
0f113f3e MC |
457 | { |
458 | CONF_IMODULE *imod; | |
459 | while (sk_CONF_IMODULE_num(initialized_modules) > 0) { | |
460 | imod = sk_CONF_IMODULE_pop(initialized_modules); | |
461 | module_finish(imod); | |
462 | } | |
463 | sk_CONF_IMODULE_free(initialized_modules); | |
464 | initialized_modules = NULL; | |
465 | } | |
bc37d996 DSH |
466 | |
467 | /* finish a module instance */ | |
468 | ||
469 | static void module_finish(CONF_IMODULE *imod) | |
0f113f3e | 470 | { |
efa7dd64 RS |
471 | if (!imod) |
472 | return; | |
0f113f3e MC |
473 | if (imod->pmod->finish) |
474 | imod->pmod->finish(imod); | |
475 | imod->pmod->links--; | |
476 | OPENSSL_free(imod->name); | |
477 | OPENSSL_free(imod->value); | |
478 | OPENSSL_free(imod); | |
479 | } | |
bc37d996 DSH |
480 | |
481 | /* Add a static module to OpenSSL */ | |
482 | ||
0f113f3e MC |
483 | int CONF_module_add(const char *name, conf_init_func *ifunc, |
484 | conf_finish_func *ffunc) | |
485 | { | |
486 | if (module_add(NULL, name, ifunc, ffunc)) | |
487 | return 1; | |
488 | else | |
489 | return 0; | |
490 | } | |
bc37d996 | 491 | |
b3599dbb | 492 | void conf_modules_free_int(void) |
0f113f3e MC |
493 | { |
494 | CONF_modules_finish(); | |
495 | CONF_modules_unload(1); | |
496 | } | |
bc37d996 DSH |
497 | |
498 | /* Utility functions */ | |
499 | ||
9dd5ae65 | 500 | const char *CONF_imodule_get_name(const CONF_IMODULE *md) |
0f113f3e MC |
501 | { |
502 | return md->name; | |
503 | } | |
bc37d996 | 504 | |
9dd5ae65 | 505 | const char *CONF_imodule_get_value(const CONF_IMODULE *md) |
0f113f3e MC |
506 | { |
507 | return md->value; | |
508 | } | |
bc37d996 | 509 | |
9dd5ae65 | 510 | void *CONF_imodule_get_usr_data(const CONF_IMODULE *md) |
0f113f3e MC |
511 | { |
512 | return md->usr_data; | |
513 | } | |
bc37d996 DSH |
514 | |
515 | void CONF_imodule_set_usr_data(CONF_IMODULE *md, void *usr_data) | |
0f113f3e MC |
516 | { |
517 | md->usr_data = usr_data; | |
518 | } | |
bc37d996 | 519 | |
9dd5ae65 | 520 | CONF_MODULE *CONF_imodule_get_module(const CONF_IMODULE *md) |
0f113f3e MC |
521 | { |
522 | return md->pmod; | |
523 | } | |
bc37d996 | 524 | |
9dd5ae65 | 525 | unsigned long CONF_imodule_get_flags(const CONF_IMODULE *md) |
0f113f3e MC |
526 | { |
527 | return md->flags; | |
528 | } | |
bc37d996 DSH |
529 | |
530 | void CONF_imodule_set_flags(CONF_IMODULE *md, unsigned long flags) | |
0f113f3e MC |
531 | { |
532 | md->flags = flags; | |
533 | } | |
bc37d996 DSH |
534 | |
535 | void *CONF_module_get_usr_data(CONF_MODULE *pmod) | |
0f113f3e MC |
536 | { |
537 | return pmod->usr_data; | |
538 | } | |
bc37d996 DSH |
539 | |
540 | void CONF_module_set_usr_data(CONF_MODULE *pmod, void *usr_data) | |
0f113f3e MC |
541 | { |
542 | pmod->usr_data = usr_data; | |
543 | } | |
bc37d996 | 544 | |
c9501c22 DSH |
545 | /* Return default config file name */ |
546 | ||
547 | char *CONF_get1_default_config_file(void) | |
0f113f3e | 548 | { |
e306f83c | 549 | const char *t; |
a2371fa9 | 550 | char *file, *sep = ""; |
e306f83c | 551 | size_t size; |
c9501c22 | 552 | |
5c39a55d P |
553 | if ((file = ossl_safe_getenv("OPENSSL_CONF")) != NULL) |
554 | return OPENSSL_strdup(file); | |
c9501c22 | 555 | |
e306f83c | 556 | t = X509_get_default_cert_area(); |
c9501c22 | 557 | #ifndef OPENSSL_SYS_VMS |
a2371fa9 | 558 | sep = "/"; |
c9501c22 | 559 | #endif |
e306f83c RL |
560 | size = strlen(t) + strlen(sep) + strlen(OPENSSL_CONF) + 1; |
561 | file = OPENSSL_malloc(size); | |
c9501c22 | 562 | |
90945fa3 | 563 | if (file == NULL) |
0f113f3e | 564 | return NULL; |
e306f83c | 565 | BIO_snprintf(file, size, "%s%s%s", t, sep, OPENSSL_CONF); |
c9501c22 | 566 | |
0f113f3e MC |
567 | return file; |
568 | } | |
df5eaa8a | 569 | |
0f113f3e MC |
570 | /* |
571 | * This function takes a list separated by 'sep' and calls the callback | |
572 | * function giving the start and length of each member optionally stripping | |
573 | * leading and trailing whitespace. This can be used to parse comma separated | |
574 | * lists for example. | |
df5eaa8a DSH |
575 | */ |
576 | ||
3822740c | 577 | int CONF_parse_list(const char *list_, int sep, int nospc, |
0f113f3e MC |
578 | int (*list_cb) (const char *elem, int len, void *usr), |
579 | void *arg) | |
580 | { | |
581 | int ret; | |
582 | const char *lstart, *tmpend, *p; | |
583 | ||
584 | if (list_ == NULL) { | |
585 | CONFerr(CONF_F_CONF_PARSE_LIST, CONF_R_LIST_CANNOT_BE_NULL); | |
586 | return 0; | |
587 | } | |
588 | ||
589 | lstart = list_; | |
590 | for (;;) { | |
591 | if (nospc) { | |
592 | while (*lstart && isspace((unsigned char)*lstart)) | |
593 | lstart++; | |
594 | } | |
595 | p = strchr(lstart, sep); | |
12a765a5 | 596 | if (p == lstart || *lstart == '\0') |
0f113f3e MC |
597 | ret = list_cb(NULL, 0, arg); |
598 | else { | |
599 | if (p) | |
600 | tmpend = p - 1; | |
601 | else | |
602 | tmpend = lstart + strlen(lstart) - 1; | |
603 | if (nospc) { | |
604 | while (isspace((unsigned char)*tmpend)) | |
605 | tmpend--; | |
606 | } | |
607 | ret = list_cb(lstart, tmpend - lstart + 1, arg); | |
608 | } | |
609 | if (ret <= 0) | |
610 | return ret; | |
611 | if (p == NULL) | |
612 | return 1; | |
613 | lstart = p + 1; | |
614 | } | |
615 | } |