2 * Copyright 1995-2017 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
11 #include "internal/cryptlib.h"
15 #include <sys/types.h>
17 #ifndef OPENSSL_NO_POSIX_IO
18 # include <sys/stat.h>
21 #include <openssl/x509.h>
22 #include "internal/x509_int.h"
25 struct lookup_dir_hashes_st {
30 struct lookup_dir_entry_st {
33 STACK_OF(BY_DIR_HASH) *hashes;
36 typedef struct lookup_dir_st {
38 STACK_OF(BY_DIR_ENTRY) *dirs;
42 static int dir_ctrl(X509_LOOKUP *ctx, int cmd, const char *argp, long argl,
44 static int new_dir(X509_LOOKUP *lu);
45 static void free_dir(X509_LOOKUP *lu);
46 static int add_cert_dir(BY_DIR *ctx, const char *dir, int type);
47 static int get_cert_by_subject(X509_LOOKUP *xl, X509_LOOKUP_TYPE type,
48 X509_NAME *name, X509_OBJECT *ret);
49 static X509_LOOKUP_METHOD x509_dir_lookup = {
50 "Load certs from files in a directory",
56 get_cert_by_subject, /* get_by_subject */
57 NULL, /* get_by_issuer_serial */
58 NULL, /* get_by_fingerprint */
59 NULL, /* get_by_alias */
62 X509_LOOKUP_METHOD *X509_LOOKUP_hash_dir(void)
64 return &x509_dir_lookup;
67 static int dir_ctrl(X509_LOOKUP *ctx, int cmd, const char *argp, long argl,
74 ld = (BY_DIR *)ctx->method_data;
78 if (argl == X509_FILETYPE_DEFAULT) {
79 dir = (char *)getenv(X509_get_default_cert_dir_env());
81 ret = add_cert_dir(ld, dir, X509_FILETYPE_PEM);
83 ret = add_cert_dir(ld, X509_get_default_cert_dir(),
86 X509err(X509_F_DIR_CTRL, X509_R_LOADING_CERT_DIR);
89 ret = add_cert_dir(ld, argp, (int)argl);
95 static int new_dir(X509_LOOKUP *lu)
99 if ((a = OPENSSL_malloc(sizeof(*a))) == NULL)
101 if ((a->buffer = BUF_MEM_new()) == NULL) {
106 a->lock = CRYPTO_THREAD_lock_new();
107 if (a->lock == NULL) {
108 BUF_MEM_free(a->buffer);
112 lu->method_data = (char *)a;
116 static void by_dir_hash_free(BY_DIR_HASH *hash)
121 static int by_dir_hash_cmp(const BY_DIR_HASH *const *a,
122 const BY_DIR_HASH *const *b)
124 if ((*a)->hash > (*b)->hash)
126 if ((*a)->hash < (*b)->hash)
131 static void by_dir_entry_free(BY_DIR_ENTRY *ent)
133 OPENSSL_free(ent->dir);
134 sk_BY_DIR_HASH_pop_free(ent->hashes, by_dir_hash_free);
138 static void free_dir(X509_LOOKUP *lu)
142 a = (BY_DIR *)lu->method_data;
143 sk_BY_DIR_ENTRY_pop_free(a->dirs, by_dir_entry_free);
144 BUF_MEM_free(a->buffer);
145 CRYPTO_THREAD_lock_free(a->lock);
149 static int add_cert_dir(BY_DIR *ctx, const char *dir, int type)
153 const char *s, *ss, *p;
155 if (dir == NULL || !*dir) {
156 X509err(X509_F_ADD_CERT_DIR, X509_R_INVALID_DIRECTORY);
163 if ((*p == LIST_SEPARATOR_CHAR) || (*p == '\0')) {
170 for (j = 0; j < sk_BY_DIR_ENTRY_num(ctx->dirs); j++) {
171 ent = sk_BY_DIR_ENTRY_value(ctx->dirs, j);
172 if (strlen(ent->dir) == len && strncmp(ent->dir, ss, len) == 0)
175 if (j < sk_BY_DIR_ENTRY_num(ctx->dirs))
177 if (ctx->dirs == NULL) {
178 ctx->dirs = sk_BY_DIR_ENTRY_new_null();
180 X509err(X509_F_ADD_CERT_DIR, ERR_R_MALLOC_FAILURE);
184 ent = OPENSSL_malloc(sizeof(*ent));
187 ent->dir_type = type;
188 ent->hashes = sk_BY_DIR_HASH_new(by_dir_hash_cmp);
189 ent->dir = OPENSSL_strndup(ss, len);
190 if (ent->dir == NULL || ent->hashes == NULL) {
191 by_dir_entry_free(ent);
194 if (!sk_BY_DIR_ENTRY_push(ctx->dirs, ent)) {
195 by_dir_entry_free(ent);
199 } while (*p++ != '\0');
203 static int get_cert_by_subject(X509_LOOKUP *xl, X509_LOOKUP_TYPE type,
204 X509_NAME *name, X509_OBJECT *ret)
215 X509_OBJECT stmp, *tmp;
216 const char *postfix = "";
222 if (type == X509_LU_X509) {
223 data.st_x509.cert_info.subject = name;
224 stmp.data.x509 = &data.st_x509;
226 } else if (type == X509_LU_CRL) {
227 data.crl.crl.issuer = name;
228 stmp.data.crl = &data.crl;
231 X509err(X509_F_GET_CERT_BY_SUBJECT, X509_R_WRONG_LOOKUP_TYPE);
235 if ((b = BUF_MEM_new()) == NULL) {
236 X509err(X509_F_GET_CERT_BY_SUBJECT, ERR_R_BUF_LIB);
240 ctx = (BY_DIR *)xl->method_data;
242 h = X509_NAME_hash(name);
243 for (i = 0; i < sk_BY_DIR_ENTRY_num(ctx->dirs); i++) {
246 BY_DIR_HASH htmp, *hent;
247 ent = sk_BY_DIR_ENTRY_value(ctx->dirs, i);
248 j = strlen(ent->dir) + 1 + 8 + 6 + 1 + 1;
249 if (!BUF_MEM_grow(b, j)) {
250 X509err(X509_F_GET_CERT_BY_SUBJECT, ERR_R_MALLOC_FAILURE);
253 if (type == X509_LU_CRL && ent->hashes) {
255 CRYPTO_THREAD_read_lock(ctx->lock);
256 idx = sk_BY_DIR_HASH_find(ent->hashes, &htmp);
258 hent = sk_BY_DIR_HASH_value(ent->hashes, idx);
264 CRYPTO_THREAD_unlock(ctx->lock);
271 #ifdef OPENSSL_SYS_VMS
272 c = ent->dir[strlen(ent->dir) - 1];
273 if (c != ':' && c != '>' && c != ']') {
275 * If no separator is present, we assume the directory
276 * specifier is a logical name, and add a colon. We really
277 * should use better VMS routines for merging things like
278 * this, but this will do for now... -- Richard Levitte
287 * This is special. When c == '\0', no directory separator
290 BIO_snprintf(b->data, b->max,
291 "%s%08lx.%s%d", ent->dir, h, postfix, k);
293 BIO_snprintf(b->data, b->max,
294 "%s%c%08lx.%s%d", ent->dir, c, h, postfix, k);
296 #ifndef OPENSSL_NO_POSIX_IO
302 if (stat(b->data, &st) < 0)
307 if (type == X509_LU_X509) {
308 if ((X509_load_cert_file(xl, b->data, ent->dir_type)) == 0)
310 } else if (type == X509_LU_CRL) {
311 if ((X509_load_crl_file(xl, b->data, ent->dir_type)) == 0)
314 /* else case will caught higher up */
319 * we have added it to the cache so now pull it out again
321 CRYPTO_THREAD_write_lock(ctx->lock);
322 j = sk_X509_OBJECT_find(xl->store_ctx->objs, &stmp);
324 tmp = sk_X509_OBJECT_value(xl->store_ctx->objs, j);
327 CRYPTO_THREAD_unlock(ctx->lock);
329 /* If a CRL, update the last file suffix added for this */
331 if (type == X509_LU_CRL) {
332 CRYPTO_THREAD_write_lock(ctx->lock);
334 * Look for entry again in case another thread added an entry
339 idx = sk_BY_DIR_HASH_find(ent->hashes, &htmp);
341 hent = sk_BY_DIR_HASH_value(ent->hashes, idx);
344 hent = OPENSSL_malloc(sizeof(*hent));
346 CRYPTO_THREAD_unlock(ctx->lock);
347 X509err(X509_F_GET_CERT_BY_SUBJECT, ERR_R_MALLOC_FAILURE);
353 if (!sk_BY_DIR_HASH_push(ent->hashes, hent)) {
354 CRYPTO_THREAD_unlock(ctx->lock);
359 } else if (hent->suffix < k) {
363 CRYPTO_THREAD_unlock(ctx->lock);
369 ret->type = tmp->type;
370 memcpy(&ret->data, &tmp->data, sizeof(ret->data));
373 * Clear any errors that might have been raised processing empty
374 * or malformed files.
379 * If we were going to up the reference count, we would need to
380 * do it on a perl 'type' basis
382 /*- CRYPTO_add(&tmp->data.x509->references,1,