2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (the "License"). You may not use
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
14 #include "internal/cryptlib.h"
16 #ifndef NO_SYS_TYPES_H
17 # include <sys/types.h>
19 #ifndef OPENSSL_NO_POSIX_IO
20 # include <sys/stat.h>
24 #include <openssl/lhash.h>
25 #include <openssl/x509.h>
26 #include "internal/x509_int.h"
29 struct lookup_dir_hashes_st {
34 struct lookup_dir_entry_st {
37 STACK_OF(BY_DIR_HASH) *hashes;
40 typedef struct lookup_dir_st {
42 STACK_OF(BY_DIR_ENTRY) *dirs;
46 static int dir_ctrl(X509_LOOKUP *ctx, int cmd, const char *argp, long argl,
48 static int new_dir(X509_LOOKUP *lu);
49 static void free_dir(X509_LOOKUP *lu);
50 static int add_cert_dir(BY_DIR *ctx, const char *dir, int type);
51 static int get_cert_by_subject(X509_LOOKUP *xl, int type, X509_NAME *name,
53 static X509_LOOKUP_METHOD x509_dir_lookup = {
54 "Load certs from files in a directory",
60 get_cert_by_subject, /* get_by_subject */
61 NULL, /* get_by_issuer_serial */
62 NULL, /* get_by_fingerprint */
63 NULL, /* get_by_alias */
66 X509_LOOKUP_METHOD *X509_LOOKUP_hash_dir(void)
68 return (&x509_dir_lookup);
71 static int dir_ctrl(X509_LOOKUP *ctx, int cmd, const char *argp, long argl,
78 ld = (BY_DIR *)ctx->method_data;
82 if (argl == X509_FILETYPE_DEFAULT) {
83 dir = (char *)getenv(X509_get_default_cert_dir_env());
85 ret = add_cert_dir(ld, dir, X509_FILETYPE_PEM);
87 ret = add_cert_dir(ld, X509_get_default_cert_dir(),
90 X509err(X509_F_DIR_CTRL, X509_R_LOADING_CERT_DIR);
93 ret = add_cert_dir(ld, argp, (int)argl);
99 static int new_dir(X509_LOOKUP *lu)
103 if ((a = OPENSSL_malloc(sizeof(*a))) == NULL)
105 if ((a->buffer = BUF_MEM_new()) == NULL) {
110 a->lock = CRYPTO_THREAD_lock_new();
111 if (a->lock == NULL) {
112 BUF_MEM_free(a->buffer);
116 lu->method_data = (char *)a;
120 static void by_dir_hash_free(BY_DIR_HASH *hash)
125 static int by_dir_hash_cmp(const BY_DIR_HASH *const *a,
126 const BY_DIR_HASH *const *b)
128 if ((*a)->hash > (*b)->hash)
130 if ((*a)->hash < (*b)->hash)
135 static void by_dir_entry_free(BY_DIR_ENTRY *ent)
137 OPENSSL_free(ent->dir);
138 sk_BY_DIR_HASH_pop_free(ent->hashes, by_dir_hash_free);
142 static void free_dir(X509_LOOKUP *lu)
146 a = (BY_DIR *)lu->method_data;
147 sk_BY_DIR_ENTRY_pop_free(a->dirs, by_dir_entry_free);
148 BUF_MEM_free(a->buffer);
149 CRYPTO_THREAD_lock_free(a->lock);
153 static int add_cert_dir(BY_DIR *ctx, const char *dir, int type)
157 if (dir == NULL || !*dir) {
158 X509err(X509_F_ADD_CERT_DIR, X509_R_INVALID_DIRECTORY);
165 if ((*p == LIST_SEPARATOR_CHAR) || (*p == '\0')) {
174 for (j = 0; j < sk_BY_DIR_ENTRY_num(ctx->dirs); j++) {
175 ent = sk_BY_DIR_ENTRY_value(ctx->dirs, j);
176 if (strlen(ent->dir) == len &&
177 strncmp(ent->dir, ss, len) == 0)
180 if (j < sk_BY_DIR_ENTRY_num(ctx->dirs))
182 if (ctx->dirs == NULL) {
183 ctx->dirs = sk_BY_DIR_ENTRY_new_null();
185 X509err(X509_F_ADD_CERT_DIR, ERR_R_MALLOC_FAILURE);
189 ent = OPENSSL_malloc(sizeof(*ent));
192 ent->dir_type = type;
193 ent->hashes = sk_BY_DIR_HASH_new(by_dir_hash_cmp);
194 ent->dir = OPENSSL_strndup(ss, len);
195 if (ent->dir == NULL || ent->hashes == NULL) {
196 by_dir_entry_free(ent);
199 if (!sk_BY_DIR_ENTRY_push(ctx->dirs, ent)) {
200 by_dir_entry_free(ent);
204 } while (*p++ != '\0');
208 static int get_cert_by_subject(X509_LOOKUP *xl, X509_LOOKUP_TYPE type,
209 X509_NAME *name, X509_OBJECT *ret)
220 X509_OBJECT stmp, *tmp;
221 const char *postfix = "";
227 if (type == X509_LU_X509) {
228 data.st_x509.cert_info.subject = name;
229 stmp.data.x509 = &data.st_x509;
231 } else if (type == X509_LU_CRL) {
232 data.crl.crl.issuer = name;
233 stmp.data.crl = &data.crl;
236 X509err(X509_F_GET_CERT_BY_SUBJECT, X509_R_WRONG_LOOKUP_TYPE);
240 if ((b = BUF_MEM_new()) == NULL) {
241 X509err(X509_F_GET_CERT_BY_SUBJECT, ERR_R_BUF_LIB);
245 ctx = (BY_DIR *)xl->method_data;
247 h = X509_NAME_hash(name);
248 for (i = 0; i < sk_BY_DIR_ENTRY_num(ctx->dirs); i++) {
251 BY_DIR_HASH htmp, *hent;
252 ent = sk_BY_DIR_ENTRY_value(ctx->dirs, i);
253 j = strlen(ent->dir) + 1 + 8 + 6 + 1 + 1;
254 if (!BUF_MEM_grow(b, j)) {
255 X509err(X509_F_GET_CERT_BY_SUBJECT, ERR_R_MALLOC_FAILURE);
258 if (type == X509_LU_CRL && ent->hashes) {
260 CRYPTO_THREAD_read_lock(ctx->lock);
261 idx = sk_BY_DIR_HASH_find(ent->hashes, &htmp);
263 hent = sk_BY_DIR_HASH_value(ent->hashes, idx);
269 CRYPTO_THREAD_unlock(ctx->lock);
276 #ifdef OPENSSL_SYS_VMS
277 c = ent->dir[strlen(ent->dir) - 1];
278 if (c != ':' && c != '>' && c != ']') {
280 * If no separator is present, we assume the directory
281 * specifier is a logical name, and add a colon. We really
282 * should use better VMS routines for merging things like
283 * this, but this will do for now... -- Richard Levitte
292 * This is special. When c == '\0', no directory separator
295 BIO_snprintf(b->data, b->max,
296 "%s%08lx.%s%d", ent->dir, h, postfix, k);
298 BIO_snprintf(b->data, b->max,
299 "%s%c%08lx.%s%d", ent->dir, c, h, postfix, k);
301 #ifndef OPENSSL_NO_POSIX_IO
307 if (stat(b->data, &st) < 0)
312 if (type == X509_LU_X509) {
313 if ((X509_load_cert_file(xl, b->data, ent->dir_type)) == 0)
315 } else if (type == X509_LU_CRL) {
316 if ((X509_load_crl_file(xl, b->data, ent->dir_type)) == 0)
319 /* else case will caught higher up */
324 * we have added it to the cache so now pull it out again
326 CRYPTO_THREAD_write_lock(ctx->lock);
327 j = sk_X509_OBJECT_find(xl->store_ctx->objs, &stmp);
329 tmp = sk_X509_OBJECT_value(xl->store_ctx->objs, j);
332 CRYPTO_THREAD_unlock(ctx->lock);
334 /* If a CRL, update the last file suffix added for this */
336 if (type == X509_LU_CRL) {
337 CRYPTO_THREAD_write_lock(ctx->lock);
339 * Look for entry again in case another thread added an entry
344 idx = sk_BY_DIR_HASH_find(ent->hashes, &htmp);
346 hent = sk_BY_DIR_HASH_value(ent->hashes, idx);
349 hent = OPENSSL_malloc(sizeof(*hent));
351 CRYPTO_THREAD_unlock(ctx->lock);
352 X509err(X509_F_GET_CERT_BY_SUBJECT, ERR_R_MALLOC_FAILURE);
358 if (!sk_BY_DIR_HASH_push(ent->hashes, hent)) {
359 CRYPTO_THREAD_unlock(ctx->lock);
364 } else if (hent->suffix < k) {
368 CRYPTO_THREAD_unlock(ctx->lock);
374 ret->type = tmp->type;
375 memcpy(&ret->data, &tmp->data, sizeof(ret->data));
377 * If we were going to up the reference count, we would need to
378 * do it on a perl 'type' basis
380 /*- CRYPTO_add(&tmp->data.x509->references,1,