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Commit | Line | Data |
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b1322259 | 1 | /* |
fecb3aae | 2 | * Copyright 1995-2022 The OpenSSL Project Authors. All Rights Reserved. |
d02b48c6 | 3 | * |
3e4b43b9 | 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
b1322259 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 | |
d02b48c6 RE |
8 | */ |
9 | ||
650c6687 RB |
10 | #if defined (__TANDEM) && defined (_SPT_MODEL_) |
11 | /* | |
12 | * These definitions have to come first in SPT due to scoping of the | |
13 | * declarations in c99 associated with SPT use of stat. | |
14 | */ | |
15 | # include <sys/types.h> | |
16 | # include <sys/stat.h> | |
17 | #endif | |
18 | ||
d5f9166b | 19 | #include "internal/e_os.h" |
07016a8a | 20 | #include "internal/cryptlib.h" |
d02b48c6 RE |
21 | #include <stdio.h> |
22 | #include <time.h> | |
23 | #include <errno.h> | |
b379fe6c | 24 | #include <sys/types.h> |
d02b48c6 | 25 | |
49e3c9d8 | 26 | #ifndef OPENSSL_NO_POSIX_IO |
17f389bb AP |
27 | # include <sys/stat.h> |
28 | #endif | |
29 | ||
ec577822 | 30 | #include <openssl/x509.h> |
25f2138b | 31 | #include "crypto/x509.h" |
706457b7 | 32 | #include "x509_local.h" |
d02b48c6 | 33 | |
4a1f3f27 | 34 | struct lookup_dir_hashes_st { |
0f113f3e MC |
35 | unsigned long hash; |
36 | int suffix; | |
4a1f3f27 | 37 | }; |
5d20c4fb | 38 | |
4a1f3f27 | 39 | struct lookup_dir_entry_st { |
0f113f3e MC |
40 | char *dir; |
41 | int dir_type; | |
42 | STACK_OF(BY_DIR_HASH) *hashes; | |
4a1f3f27 | 43 | }; |
5d20c4fb | 44 | |
0f113f3e MC |
45 | typedef struct lookup_dir_st { |
46 | BUF_MEM *buffer; | |
47 | STACK_OF(BY_DIR_ENTRY) *dirs; | |
4fc4faa7 | 48 | CRYPTO_RWLOCK *lock; |
0f113f3e | 49 | } BY_DIR; |
d02b48c6 | 50 | |
303c0028 | 51 | static int dir_ctrl(X509_LOOKUP *ctx, int cmd, const char *argp, long argl, |
6725682d SL |
52 | char **retp); |
53 | ||
d02b48c6 RE |
54 | static int new_dir(X509_LOOKUP *lu); |
55 | static void free_dir(X509_LOOKUP *lu); | |
0f113f3e | 56 | static int add_cert_dir(BY_DIR *ctx, const char *dir, int type); |
0946a198 | 57 | static int get_cert_by_subject(X509_LOOKUP *xl, X509_LOOKUP_TYPE type, |
8cc86b81 | 58 | const X509_NAME *name, X509_OBJECT *ret); |
d8652be0 MC |
59 | static int get_cert_by_subject_ex(X509_LOOKUP *xl, X509_LOOKUP_TYPE type, |
60 | const X509_NAME *name, X509_OBJECT *ret, | |
b4250010 | 61 | OSSL_LIB_CTX *libctx, const char *propq); |
df2ee0e2 | 62 | static X509_LOOKUP_METHOD x509_dir_lookup = { |
0f113f3e | 63 | "Load certs from files in a directory", |
6725682d SL |
64 | new_dir, /* new_item */ |
65 | free_dir, /* free */ | |
66 | NULL, /* init */ | |
67 | NULL, /* shutdown */ | |
68 | dir_ctrl, /* ctrl */ | |
69 | get_cert_by_subject, /* get_by_subject */ | |
70 | NULL, /* get_by_issuer_serial */ | |
71 | NULL, /* get_by_fingerprint */ | |
72 | NULL, /* get_by_alias */ | |
746f3674 | 73 | get_cert_by_subject_ex, /* get_by_subject_ex */ |
d8652be0 | 74 | NULL, /* ctrl_ex */ |
0f113f3e | 75 | }; |
d02b48c6 | 76 | |
6b691a5c | 77 | X509_LOOKUP_METHOD *X509_LOOKUP_hash_dir(void) |
0f113f3e | 78 | { |
26a7d938 | 79 | return &x509_dir_lookup; |
0f113f3e | 80 | } |
d02b48c6 | 81 | |
303c0028 | 82 | static int dir_ctrl(X509_LOOKUP *ctx, int cmd, const char *argp, long argl, |
0f113f3e MC |
83 | char **retp) |
84 | { | |
85 | int ret = 0; | |
7fcdbd83 | 86 | BY_DIR *ld = (BY_DIR *)ctx->method_data; |
0f113f3e MC |
87 | |
88 | switch (cmd) { | |
89 | case X509_L_ADD_DIR: | |
90 | if (argl == X509_FILETYPE_DEFAULT) { | |
5c39a55d | 91 | const char *dir = ossl_safe_getenv(X509_get_default_cert_dir_env()); |
7fcdbd83 | 92 | |
021859bf HL |
93 | /* |
94 | * If SSL_CERT_DIR seems to specify a URI, don't process it as a | |
95 | * directory. | |
96 | */ | |
97 | if (dir != NULL && ossl_is_uri(dir)) | |
98 | return 0; | |
99 | ||
100 | if (dir == NULL) | |
101 | dir = X509_get_default_cert_dir(); | |
102 | ||
103 | ret = add_cert_dir(ld, dir, X509_FILETYPE_PEM); | |
0f113f3e | 104 | if (!ret) { |
9311d0c4 | 105 | ERR_raise(ERR_LIB_X509, X509_R_LOADING_CERT_DIR); |
0f113f3e MC |
106 | } |
107 | } else | |
108 | ret = add_cert_dir(ld, argp, (int)argl); | |
109 | break; | |
110 | } | |
26a7d938 | 111 | return ret; |
0f113f3e | 112 | } |
d02b48c6 | 113 | |
6b691a5c | 114 | static int new_dir(X509_LOOKUP *lu) |
0f113f3e | 115 | { |
7fcdbd83 | 116 | BY_DIR *a = OPENSSL_malloc(sizeof(*a)); |
0f113f3e | 117 | |
7fcdbd83 | 118 | if (a == NULL) { |
9311d0c4 | 119 | ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE); |
4fc4faa7 | 120 | return 0; |
7fcdbd83 F |
121 | } |
122 | ||
0f113f3e | 123 | if ((a->buffer = BUF_MEM_new()) == NULL) { |
9311d0c4 | 124 | ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE); |
7fcdbd83 | 125 | goto err; |
0f113f3e MC |
126 | } |
127 | a->dirs = NULL; | |
4fc4faa7 MC |
128 | a->lock = CRYPTO_THREAD_lock_new(); |
129 | if (a->lock == NULL) { | |
130 | BUF_MEM_free(a->buffer); | |
9311d0c4 | 131 | ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE); |
7fcdbd83 | 132 | goto err; |
4fc4faa7 | 133 | } |
0124f32a | 134 | lu->method_data = a; |
4fc4faa7 | 135 | return 1; |
7fcdbd83 F |
136 | |
137 | err: | |
138 | OPENSSL_free(a); | |
139 | return 0; | |
0f113f3e | 140 | } |
d02b48c6 | 141 | |
5d20c4fb | 142 | static void by_dir_hash_free(BY_DIR_HASH *hash) |
0f113f3e MC |
143 | { |
144 | OPENSSL_free(hash); | |
145 | } | |
146 | ||
147 | static int by_dir_hash_cmp(const BY_DIR_HASH *const *a, | |
148 | const BY_DIR_HASH *const *b) | |
149 | { | |
150 | if ((*a)->hash > (*b)->hash) | |
151 | return 1; | |
152 | if ((*a)->hash < (*b)->hash) | |
153 | return -1; | |
154 | return 0; | |
155 | } | |
5d20c4fb DSH |
156 | |
157 | static void by_dir_entry_free(BY_DIR_ENTRY *ent) | |
0f113f3e | 158 | { |
b548a1f1 | 159 | OPENSSL_free(ent->dir); |
25aaa98a | 160 | sk_BY_DIR_HASH_pop_free(ent->hashes, by_dir_hash_free); |
0f113f3e MC |
161 | OPENSSL_free(ent); |
162 | } | |
5d20c4fb | 163 | |
6b691a5c | 164 | static void free_dir(X509_LOOKUP *lu) |
0f113f3e | 165 | { |
7fcdbd83 | 166 | BY_DIR *a = (BY_DIR *)lu->method_data; |
d02b48c6 | 167 | |
25aaa98a RS |
168 | sk_BY_DIR_ENTRY_pop_free(a->dirs, by_dir_entry_free); |
169 | BUF_MEM_free(a->buffer); | |
4fc4faa7 | 170 | CRYPTO_THREAD_lock_free(a->lock); |
0f113f3e MC |
171 | OPENSSL_free(a); |
172 | } | |
d02b48c6 | 173 | |
6b691a5c | 174 | static int add_cert_dir(BY_DIR *ctx, const char *dir, int type) |
0f113f3e | 175 | { |
53a73768 P |
176 | int j; |
177 | size_t len; | |
582e2ed2 | 178 | const char *s, *ss, *p; |
0f113f3e | 179 | |
12a765a5 | 180 | if (dir == NULL || *dir == '\0') { |
9311d0c4 | 181 | ERR_raise(ERR_LIB_X509, X509_R_INVALID_DIRECTORY); |
0f113f3e MC |
182 | return 0; |
183 | } | |
184 | ||
185 | s = dir; | |
186 | p = s; | |
187 | do { | |
188 | if ((*p == LIST_SEPARATOR_CHAR) || (*p == '\0')) { | |
189 | BY_DIR_ENTRY *ent; | |
7fcdbd83 | 190 | |
582e2ed2 | 191 | ss = s; |
0f113f3e | 192 | s = p + 1; |
53a73768 | 193 | len = p - ss; |
0f113f3e MC |
194 | if (len == 0) |
195 | continue; | |
196 | for (j = 0; j < sk_BY_DIR_ENTRY_num(ctx->dirs); j++) { | |
197 | ent = sk_BY_DIR_ENTRY_value(ctx->dirs, j); | |
6ffaf15d | 198 | if (strlen(ent->dir) == len && strncmp(ent->dir, ss, len) == 0) |
0f113f3e MC |
199 | break; |
200 | } | |
201 | if (j < sk_BY_DIR_ENTRY_num(ctx->dirs)) | |
202 | continue; | |
203 | if (ctx->dirs == NULL) { | |
204 | ctx->dirs = sk_BY_DIR_ENTRY_new_null(); | |
205 | if (!ctx->dirs) { | |
9311d0c4 | 206 | ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE); |
0f113f3e MC |
207 | return 0; |
208 | } | |
209 | } | |
b4faea50 | 210 | ent = OPENSSL_malloc(sizeof(*ent)); |
7fcdbd83 | 211 | if (ent == NULL) { |
9311d0c4 | 212 | ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE); |
0f113f3e | 213 | return 0; |
7fcdbd83 | 214 | } |
0f113f3e MC |
215 | ent->dir_type = type; |
216 | ent->hashes = sk_BY_DIR_HASH_new(by_dir_hash_cmp); | |
6ffaf15d | 217 | ent->dir = OPENSSL_strndup(ss, len); |
90945fa3 | 218 | if (ent->dir == NULL || ent->hashes == NULL) { |
0f113f3e MC |
219 | by_dir_entry_free(ent); |
220 | return 0; | |
221 | } | |
0f113f3e MC |
222 | if (!sk_BY_DIR_ENTRY_push(ctx->dirs, ent)) { |
223 | by_dir_entry_free(ent); | |
9311d0c4 | 224 | ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE); |
0f113f3e MC |
225 | return 0; |
226 | } | |
227 | } | |
228 | } while (*p++ != '\0'); | |
229 | return 1; | |
230 | } | |
d02b48c6 | 231 | |
d8652be0 MC |
232 | static int get_cert_by_subject_ex(X509_LOOKUP *xl, X509_LOOKUP_TYPE type, |
233 | const X509_NAME *name, X509_OBJECT *ret, | |
b4250010 | 234 | OSSL_LIB_CTX *libctx, const char *propq) |
0f113f3e MC |
235 | { |
236 | BY_DIR *ctx; | |
237 | union { | |
5cf6abd8 | 238 | X509 st_x509; |
7aef39a7 | 239 | X509_CRL crl; |
0f113f3e MC |
240 | } data; |
241 | int ok = 0; | |
242 | int i, j, k; | |
243 | unsigned long h; | |
244 | BUF_MEM *b = NULL; | |
245 | X509_OBJECT stmp, *tmp; | |
246 | const char *postfix = ""; | |
247 | ||
248 | if (name == NULL) | |
26a7d938 | 249 | return 0; |
0f113f3e MC |
250 | |
251 | stmp.type = type; | |
252 | if (type == X509_LU_X509) { | |
8cc86b81 | 253 | data.st_x509.cert_info.subject = (X509_NAME *)name; /* won't modify it */ |
5cf6abd8 | 254 | stmp.data.x509 = &data.st_x509; |
0f113f3e | 255 | } else if (type == X509_LU_CRL) { |
8cc86b81 | 256 | data.crl.crl.issuer = (X509_NAME *)name; /* won't modify it */ |
7aef39a7 | 257 | stmp.data.crl = &data.crl; |
0f113f3e MC |
258 | postfix = "r"; |
259 | } else { | |
9311d0c4 | 260 | ERR_raise(ERR_LIB_X509, X509_R_WRONG_LOOKUP_TYPE); |
0f113f3e MC |
261 | goto finish; |
262 | } | |
263 | ||
264 | if ((b = BUF_MEM_new()) == NULL) { | |
9311d0c4 | 265 | ERR_raise(ERR_LIB_X509, ERR_R_BUF_LIB); |
0f113f3e MC |
266 | goto finish; |
267 | } | |
268 | ||
269 | ctx = (BY_DIR *)xl->method_data; | |
bf973d06 DDO |
270 | h = X509_NAME_hash_ex(name, libctx, propq, &i); |
271 | if (i == 0) | |
272 | goto finish; | |
0f113f3e MC |
273 | for (i = 0; i < sk_BY_DIR_ENTRY_num(ctx->dirs); i++) { |
274 | BY_DIR_ENTRY *ent; | |
275 | int idx; | |
276 | BY_DIR_HASH htmp, *hent; | |
7fcdbd83 | 277 | |
0f113f3e MC |
278 | ent = sk_BY_DIR_ENTRY_value(ctx->dirs, i); |
279 | j = strlen(ent->dir) + 1 + 8 + 6 + 1 + 1; | |
280 | if (!BUF_MEM_grow(b, j)) { | |
9311d0c4 | 281 | ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE); |
0f113f3e MC |
282 | goto finish; |
283 | } | |
284 | if (type == X509_LU_CRL && ent->hashes) { | |
285 | htmp.hash = h; | |
cd3f8c1b RS |
286 | if (!CRYPTO_THREAD_read_lock(ctx->lock)) |
287 | goto finish; | |
0f113f3e MC |
288 | idx = sk_BY_DIR_HASH_find(ent->hashes, &htmp); |
289 | if (idx >= 0) { | |
290 | hent = sk_BY_DIR_HASH_value(ent->hashes, idx); | |
291 | k = hent->suffix; | |
292 | } else { | |
293 | hent = NULL; | |
294 | k = 0; | |
295 | } | |
4fc4faa7 | 296 | CRYPTO_THREAD_unlock(ctx->lock); |
0f113f3e MC |
297 | } else { |
298 | k = 0; | |
299 | hent = NULL; | |
300 | } | |
301 | for (;;) { | |
302 | char c = '/'; | |
19431e5e | 303 | |
af6dab9b | 304 | #ifdef OPENSSL_SYS_VMS |
0f113f3e MC |
305 | c = ent->dir[strlen(ent->dir) - 1]; |
306 | if (c != ':' && c != '>' && c != ']') { | |
307 | /* | |
308 | * If no separator is present, we assume the directory | |
309 | * specifier is a logical name, and add a colon. We really | |
310 | * should use better VMS routines for merging things like | |
311 | * this, but this will do for now... -- Richard Levitte | |
312 | */ | |
313 | c = ':'; | |
314 | } else { | |
315 | c = '\0'; | |
316 | } | |
19431e5e | 317 | |
0f113f3e MC |
318 | if (c == '\0') { |
319 | /* | |
320 | * This is special. When c == '\0', no directory separator | |
321 | * should be added. | |
322 | */ | |
323 | BIO_snprintf(b->data, b->max, | |
324 | "%s%08lx.%s%d", ent->dir, h, postfix, k); | |
19431e5e P |
325 | } else |
326 | #endif | |
327 | { | |
a2371fa9 P |
328 | BIO_snprintf(b->data, b->max, |
329 | "%s%c%08lx.%s%d", ent->dir, c, h, postfix, k); | |
0f113f3e | 330 | } |
49e3c9d8 | 331 | #ifndef OPENSSL_NO_POSIX_IO |
0f113f3e MC |
332 | # ifdef _WIN32 |
333 | # define stat _stat | |
334 | # endif | |
335 | { | |
336 | struct stat st; | |
337 | if (stat(b->data, &st) < 0) | |
338 | break; | |
339 | } | |
49e3c9d8 | 340 | #endif |
0f113f3e MC |
341 | /* found one. */ |
342 | if (type == X509_LU_X509) { | |
d8652be0 MC |
343 | if ((X509_load_cert_file_ex(xl, b->data, ent->dir_type, libctx, |
344 | propq)) == 0) | |
0f113f3e MC |
345 | break; |
346 | } else if (type == X509_LU_CRL) { | |
347 | if ((X509_load_crl_file(xl, b->data, ent->dir_type)) == 0) | |
348 | break; | |
349 | } | |
350 | /* else case will caught higher up */ | |
351 | k++; | |
352 | } | |
353 | ||
354 | /* | |
355 | * we have added it to the cache so now pull it out again | |
356 | */ | |
a161738a | 357 | X509_STORE_lock(xl->store_ctx); |
0f113f3e | 358 | j = sk_X509_OBJECT_find(xl->store_ctx->objs, &stmp); |
5b37fef0 | 359 | tmp = sk_X509_OBJECT_value(xl->store_ctx->objs, j); |
a161738a | 360 | X509_STORE_unlock(xl->store_ctx); |
0f113f3e MC |
361 | |
362 | /* If a CRL, update the last file suffix added for this */ | |
363 | ||
364 | if (type == X509_LU_CRL) { | |
cd3f8c1b RS |
365 | if (!CRYPTO_THREAD_write_lock(ctx->lock)) |
366 | goto finish; | |
0f113f3e MC |
367 | /* |
368 | * Look for entry again in case another thread added an entry | |
369 | * first. | |
370 | */ | |
5b37fef0 | 371 | if (hent == NULL) { |
0f113f3e MC |
372 | htmp.hash = h; |
373 | idx = sk_BY_DIR_HASH_find(ent->hashes, &htmp); | |
5b37fef0 | 374 | hent = sk_BY_DIR_HASH_value(ent->hashes, idx); |
0f113f3e | 375 | } |
7fcdbd83 | 376 | if (hent == NULL) { |
b4faea50 | 377 | hent = OPENSSL_malloc(sizeof(*hent)); |
0f113f3e | 378 | if (hent == NULL) { |
4fc4faa7 | 379 | CRYPTO_THREAD_unlock(ctx->lock); |
9311d0c4 | 380 | ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE); |
0f113f3e MC |
381 | ok = 0; |
382 | goto finish; | |
383 | } | |
384 | hent->hash = h; | |
385 | hent->suffix = k; | |
386 | if (!sk_BY_DIR_HASH_push(ent->hashes, hent)) { | |
4fc4faa7 | 387 | CRYPTO_THREAD_unlock(ctx->lock); |
0f113f3e | 388 | OPENSSL_free(hent); |
9311d0c4 | 389 | ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE); |
0f113f3e MC |
390 | ok = 0; |
391 | goto finish; | |
392 | } | |
4fc4faa7 | 393 | } else if (hent->suffix < k) { |
0f113f3e | 394 | hent->suffix = k; |
4fc4faa7 | 395 | } |
0f113f3e | 396 | |
4fc4faa7 | 397 | CRYPTO_THREAD_unlock(ctx->lock); |
0f113f3e MC |
398 | |
399 | } | |
400 | ||
401 | if (tmp != NULL) { | |
402 | ok = 1; | |
403 | ret->type = tmp->type; | |
404 | memcpy(&ret->data, &tmp->data, sizeof(ret->data)); | |
c0452248 RS |
405 | |
406 | /* | |
407 | * Clear any errors that might have been raised processing empty | |
408 | * or malformed files. | |
409 | */ | |
410 | ERR_clear_error(); | |
411 | ||
0f113f3e MC |
412 | goto finish; |
413 | } | |
414 | } | |
415 | finish: | |
25aaa98a | 416 | BUF_MEM_free(b); |
26a7d938 | 417 | return ok; |
0f113f3e | 418 | } |
6725682d SL |
419 | |
420 | static int get_cert_by_subject(X509_LOOKUP *xl, X509_LOOKUP_TYPE type, | |
421 | const X509_NAME *name, X509_OBJECT *ret) | |
422 | { | |
d8652be0 | 423 | return get_cert_by_subject_ex(xl, type, name, ret, NULL, NULL); |
6725682d | 424 | } |