1 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
4 * This package is an SSL implementation written
5 * by Eric Young (eay@cryptsoft.com).
6 * The implementation was written so as to conform with Netscapes SSL.
8 * This library is free for commercial and non-commercial use as long as
9 * the following conditions are aheared to. The following conditions
10 * apply to all code found in this distribution, be it the RC4, RSA,
11 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
12 * included with this distribution is covered by the same copyright terms
13 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 * Copyright remains Eric Young's, and as such any Copyright notices in
16 * the code are not to be removed.
17 * If this package is used in a product, Eric Young should be given attribution
18 * as the author of the parts of the library used.
19 * This can be in the form of a textual message at program startup or
20 * in documentation (online or textual) provided with the package.
22 * Redistribution and use in source and binary forms, with or without
23 * modification, are permitted provided that the following conditions
25 * 1. Redistributions of source code must retain the copyright
26 * notice, this list of conditions and the following disclaimer.
27 * 2. Redistributions in binary form must reproduce the above copyright
28 * notice, this list of conditions and the following disclaimer in the
29 * documentation and/or other materials provided with the distribution.
30 * 3. All advertising materials mentioning features or use of this software
31 * must display the following acknowledgement:
32 * "This product includes cryptographic software written by
33 * Eric Young (eay@cryptsoft.com)"
34 * The word 'cryptographic' can be left out if the rouines from the library
35 * being used are not cryptographic related :-).
36 * 4. If you include any Windows specific code (or a derivative thereof) from
37 * the apps directory (application code) you must include an acknowledgement:
38 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
41 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
43 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
44 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
45 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
46 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
48 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
49 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
52 * The licence and distribution terms for any publically available version or
53 * derivative of this code cannot be changed. i.e. this code cannot simply be
54 * copied and put under another distribution licence
55 * [including the GNU Public Licence.]
62 #include "internal/cryptlib.h"
64 #ifndef NO_SYS_TYPES_H
65 # include <sys/types.h>
67 #ifndef OPENSSL_NO_POSIX_IO
68 # include <sys/stat.h>
72 #include <openssl/lhash.h>
73 #include <openssl/x509.h>
74 #include "internal/threads.h"
75 #include "internal/x509_int.h"
78 struct lookup_dir_hashes_st {
83 struct lookup_dir_entry_st {
86 STACK_OF(BY_DIR_HASH) *hashes;
89 typedef struct lookup_dir_st {
91 STACK_OF(BY_DIR_ENTRY) *dirs;
95 static int dir_ctrl(X509_LOOKUP *ctx, int cmd, const char *argp, long argl,
97 static int new_dir(X509_LOOKUP *lu);
98 static void free_dir(X509_LOOKUP *lu);
99 static int add_cert_dir(BY_DIR *ctx, const char *dir, int type);
100 static int get_cert_by_subject(X509_LOOKUP *xl, int type, X509_NAME *name,
102 static X509_LOOKUP_METHOD x509_dir_lookup = {
103 "Load certs from files in a directory",
109 get_cert_by_subject, /* get_by_subject */
110 NULL, /* get_by_issuer_serial */
111 NULL, /* get_by_fingerprint */
112 NULL, /* get_by_alias */
115 X509_LOOKUP_METHOD *X509_LOOKUP_hash_dir(void)
117 return (&x509_dir_lookup);
120 static int dir_ctrl(X509_LOOKUP *ctx, int cmd, const char *argp, long argl,
127 ld = (BY_DIR *)ctx->method_data;
131 if (argl == X509_FILETYPE_DEFAULT) {
132 dir = (char *)getenv(X509_get_default_cert_dir_env());
134 ret = add_cert_dir(ld, dir, X509_FILETYPE_PEM);
136 ret = add_cert_dir(ld, X509_get_default_cert_dir(),
139 X509err(X509_F_DIR_CTRL, X509_R_LOADING_CERT_DIR);
142 ret = add_cert_dir(ld, argp, (int)argl);
148 static int new_dir(X509_LOOKUP *lu)
152 if ((a = OPENSSL_malloc(sizeof(*a))) == NULL)
154 if ((a->buffer = BUF_MEM_new()) == NULL) {
159 a->lock = CRYPTO_THREAD_lock_new();
160 if (a->lock == NULL) {
161 BUF_MEM_free(a->buffer);
165 lu->method_data = (char *)a;
169 static void by_dir_hash_free(BY_DIR_HASH *hash)
174 static int by_dir_hash_cmp(const BY_DIR_HASH *const *a,
175 const BY_DIR_HASH *const *b)
177 if ((*a)->hash > (*b)->hash)
179 if ((*a)->hash < (*b)->hash)
184 static void by_dir_entry_free(BY_DIR_ENTRY *ent)
186 OPENSSL_free(ent->dir);
187 sk_BY_DIR_HASH_pop_free(ent->hashes, by_dir_hash_free);
191 static void free_dir(X509_LOOKUP *lu)
195 a = (BY_DIR *)lu->method_data;
196 sk_BY_DIR_ENTRY_pop_free(a->dirs, by_dir_entry_free);
197 BUF_MEM_free(a->buffer);
198 CRYPTO_THREAD_lock_free(a->lock);
202 static int add_cert_dir(BY_DIR *ctx, const char *dir, int type)
206 if (dir == NULL || !*dir) {
207 X509err(X509_F_ADD_CERT_DIR, X509_R_INVALID_DIRECTORY);
214 if ((*p == LIST_SEPARATOR_CHAR) || (*p == '\0')) {
223 for (j = 0; j < sk_BY_DIR_ENTRY_num(ctx->dirs); j++) {
224 ent = sk_BY_DIR_ENTRY_value(ctx->dirs, j);
225 if (strlen(ent->dir) == len &&
226 strncmp(ent->dir, ss, len) == 0)
229 if (j < sk_BY_DIR_ENTRY_num(ctx->dirs))
231 if (ctx->dirs == NULL) {
232 ctx->dirs = sk_BY_DIR_ENTRY_new_null();
234 X509err(X509_F_ADD_CERT_DIR, ERR_R_MALLOC_FAILURE);
238 ent = OPENSSL_malloc(sizeof(*ent));
241 ent->dir_type = type;
242 ent->hashes = sk_BY_DIR_HASH_new(by_dir_hash_cmp);
243 ent->dir = OPENSSL_strndup(ss, len);
244 if (ent->dir == NULL || ent->hashes == NULL) {
245 by_dir_entry_free(ent);
248 if (!sk_BY_DIR_ENTRY_push(ctx->dirs, ent)) {
249 by_dir_entry_free(ent);
253 } while (*p++ != '\0');
257 static int get_cert_by_subject(X509_LOOKUP *xl, X509_LOOKUP_TYPE type,
258 X509_NAME *name, X509_OBJECT *ret)
269 X509_OBJECT stmp, *tmp;
270 const char *postfix = "";
276 if (type == X509_LU_X509) {
277 data.st_x509.cert_info.subject = name;
278 stmp.data.x509 = &data.st_x509;
280 } else if (type == X509_LU_CRL) {
281 data.crl.crl.issuer = name;
282 stmp.data.crl = &data.crl;
285 X509err(X509_F_GET_CERT_BY_SUBJECT, X509_R_WRONG_LOOKUP_TYPE);
289 if ((b = BUF_MEM_new()) == NULL) {
290 X509err(X509_F_GET_CERT_BY_SUBJECT, ERR_R_BUF_LIB);
294 ctx = (BY_DIR *)xl->method_data;
296 h = X509_NAME_hash(name);
297 for (i = 0; i < sk_BY_DIR_ENTRY_num(ctx->dirs); i++) {
300 BY_DIR_HASH htmp, *hent;
301 ent = sk_BY_DIR_ENTRY_value(ctx->dirs, i);
302 j = strlen(ent->dir) + 1 + 8 + 6 + 1 + 1;
303 if (!BUF_MEM_grow(b, j)) {
304 X509err(X509_F_GET_CERT_BY_SUBJECT, ERR_R_MALLOC_FAILURE);
307 if (type == X509_LU_CRL && ent->hashes) {
309 CRYPTO_THREAD_read_lock(ctx->lock);
310 idx = sk_BY_DIR_HASH_find(ent->hashes, &htmp);
312 hent = sk_BY_DIR_HASH_value(ent->hashes, idx);
318 CRYPTO_THREAD_unlock(ctx->lock);
325 #ifdef OPENSSL_SYS_VMS
326 c = ent->dir[strlen(ent->dir) - 1];
327 if (c != ':' && c != '>' && c != ']') {
329 * If no separator is present, we assume the directory
330 * specifier is a logical name, and add a colon. We really
331 * should use better VMS routines for merging things like
332 * this, but this will do for now... -- Richard Levitte
341 * This is special. When c == '\0', no directory separator
344 BIO_snprintf(b->data, b->max,
345 "%s%08lx.%s%d", ent->dir, h, postfix, k);
347 BIO_snprintf(b->data, b->max,
348 "%s%c%08lx.%s%d", ent->dir, c, h, postfix, k);
350 #ifndef OPENSSL_NO_POSIX_IO
356 if (stat(b->data, &st) < 0)
361 if (type == X509_LU_X509) {
362 if ((X509_load_cert_file(xl, b->data, ent->dir_type)) == 0)
364 } else if (type == X509_LU_CRL) {
365 if ((X509_load_crl_file(xl, b->data, ent->dir_type)) == 0)
368 /* else case will caught higher up */
373 * we have added it to the cache so now pull it out again
375 CRYPTO_THREAD_write_lock(ctx->lock);
376 j = sk_X509_OBJECT_find(xl->store_ctx->objs, &stmp);
378 tmp = sk_X509_OBJECT_value(xl->store_ctx->objs, j);
381 CRYPTO_THREAD_unlock(ctx->lock);
383 /* If a CRL, update the last file suffix added for this */
385 if (type == X509_LU_CRL) {
386 CRYPTO_THREAD_write_lock(ctx->lock);
388 * Look for entry again in case another thread added an entry
393 idx = sk_BY_DIR_HASH_find(ent->hashes, &htmp);
395 hent = sk_BY_DIR_HASH_value(ent->hashes, idx);
398 hent = OPENSSL_malloc(sizeof(*hent));
400 CRYPTO_THREAD_unlock(ctx->lock);
401 X509err(X509_F_GET_CERT_BY_SUBJECT, ERR_R_MALLOC_FAILURE);
407 if (!sk_BY_DIR_HASH_push(ent->hashes, hent)) {
408 CRYPTO_THREAD_unlock(ctx->lock);
413 } else if (hent->suffix < k) {
417 CRYPTO_THREAD_unlock(ctx->lock);
423 ret->type = tmp->type;
424 memcpy(&ret->data, &tmp->data, sizeof(ret->data));
426 * If we were going to up the reference count, we would need to
427 * do it on a perl 'type' basis
429 /*- CRYPTO_add(&tmp->data.x509->references,1,