2 * Copyright 1995-2022 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (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
10 #if defined (__TANDEM) && defined (_SPT_MODEL_)
12 * These definitions have to come first in SPT due to scoping of the
13 * declarations in c99 associated with SPT use of stat.
15 # include <sys/types.h>
16 # include <sys/stat.h>
19 #include "internal/e_os.h"
20 #include "internal/cryptlib.h"
24 #include <sys/types.h>
26 #ifndef OPENSSL_NO_POSIX_IO
27 # include <sys/stat.h>
30 #include <openssl/x509.h>
31 #include "crypto/x509.h"
32 #include "x509_local.h"
34 struct lookup_dir_hashes_st {
39 struct lookup_dir_entry_st {
42 STACK_OF(BY_DIR_HASH) *hashes;
45 typedef struct lookup_dir_st {
47 STACK_OF(BY_DIR_ENTRY) *dirs;
51 static int dir_ctrl(X509_LOOKUP *ctx, int cmd, const char *argp, long argl,
54 static int new_dir(X509_LOOKUP *lu);
55 static void free_dir(X509_LOOKUP *lu);
56 static int add_cert_dir(BY_DIR *ctx, const char *dir, int type);
57 static int get_cert_by_subject(X509_LOOKUP *xl, X509_LOOKUP_TYPE type,
58 const X509_NAME *name, X509_OBJECT *ret);
59 static int get_cert_by_subject_ex(X509_LOOKUP *xl, X509_LOOKUP_TYPE type,
60 const X509_NAME *name, X509_OBJECT *ret,
61 OSSL_LIB_CTX *libctx, const char *propq);
62 static X509_LOOKUP_METHOD x509_dir_lookup = {
63 "Load certs from files in a directory",
64 new_dir, /* new_item */
69 get_cert_by_subject, /* get_by_subject */
70 NULL, /* get_by_issuer_serial */
71 NULL, /* get_by_fingerprint */
72 NULL, /* get_by_alias */
73 get_cert_by_subject_ex, /* get_by_subject_ex */
77 X509_LOOKUP_METHOD *X509_LOOKUP_hash_dir(void)
79 return &x509_dir_lookup;
82 static int dir_ctrl(X509_LOOKUP *ctx, int cmd, const char *argp, long argl,
86 BY_DIR *ld = (BY_DIR *)ctx->method_data;
90 if (argl == X509_FILETYPE_DEFAULT) {
91 /* If SSL_CERT_PATH is provided and non-empty, use that. */
92 const char *dir = ossl_safe_getenv(X509_get_default_cert_path_env());
94 /* Fallback to SSL_CERT_DIR. */
96 dir = ossl_safe_getenv(X509_get_default_cert_dir_env());
98 /* Fallback to built-in default. */
100 dir = X509_get_default_cert_dir();
102 ret = add_cert_dir(ld, dir, X509_FILETYPE_PEM);
104 ERR_raise(ERR_LIB_X509, X509_R_LOADING_CERT_DIR);
107 ret = add_cert_dir(ld, argp, (int)argl);
113 static int new_dir(X509_LOOKUP *lu)
115 BY_DIR *a = OPENSSL_malloc(sizeof(*a));
118 ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE);
122 if ((a->buffer = BUF_MEM_new()) == NULL) {
123 ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE);
127 a->lock = CRYPTO_THREAD_lock_new();
128 if (a->lock == NULL) {
129 BUF_MEM_free(a->buffer);
130 ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE);
141 static void by_dir_hash_free(BY_DIR_HASH *hash)
146 static int by_dir_hash_cmp(const BY_DIR_HASH *const *a,
147 const BY_DIR_HASH *const *b)
149 if ((*a)->hash > (*b)->hash)
151 if ((*a)->hash < (*b)->hash)
156 static void by_dir_entry_free(BY_DIR_ENTRY *ent)
158 OPENSSL_free(ent->dir);
159 sk_BY_DIR_HASH_pop_free(ent->hashes, by_dir_hash_free);
163 static void free_dir(X509_LOOKUP *lu)
165 BY_DIR *a = (BY_DIR *)lu->method_data;
167 sk_BY_DIR_ENTRY_pop_free(a->dirs, by_dir_entry_free);
168 BUF_MEM_free(a->buffer);
169 CRYPTO_THREAD_lock_free(a->lock);
173 static int add_cert_dir(BY_DIR *ctx, const char *dir, int type)
177 const char *s, *ss, *p;
179 if (dir == NULL || *dir == '\0') {
180 ERR_raise(ERR_LIB_X509, X509_R_INVALID_DIRECTORY);
187 if ((*p == LIST_SEPARATOR_CHAR) || (*p == '\0')) {
195 for (j = 0; j < sk_BY_DIR_ENTRY_num(ctx->dirs); j++) {
196 ent = sk_BY_DIR_ENTRY_value(ctx->dirs, j);
197 if (strlen(ent->dir) == len && strncmp(ent->dir, ss, len) == 0)
200 if (j < sk_BY_DIR_ENTRY_num(ctx->dirs))
202 if (ctx->dirs == NULL) {
203 ctx->dirs = sk_BY_DIR_ENTRY_new_null();
205 ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE);
209 ent = OPENSSL_malloc(sizeof(*ent));
211 ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE);
214 ent->dir_type = type;
215 ent->hashes = sk_BY_DIR_HASH_new(by_dir_hash_cmp);
216 ent->dir = OPENSSL_strndup(ss, len);
217 if (ent->dir == NULL || ent->hashes == NULL) {
218 by_dir_entry_free(ent);
221 if (!sk_BY_DIR_ENTRY_push(ctx->dirs, ent)) {
222 by_dir_entry_free(ent);
223 ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE);
227 } while (*p++ != '\0');
231 static int get_cert_by_subject_ex(X509_LOOKUP *xl, X509_LOOKUP_TYPE type,
232 const X509_NAME *name, X509_OBJECT *ret,
233 OSSL_LIB_CTX *libctx, const char *propq)
244 X509_OBJECT stmp, *tmp;
245 const char *postfix = "";
251 if (type == X509_LU_X509) {
252 data.st_x509.cert_info.subject = (X509_NAME *)name; /* won't modify it */
253 stmp.data.x509 = &data.st_x509;
254 } else if (type == X509_LU_CRL) {
255 data.crl.crl.issuer = (X509_NAME *)name; /* won't modify it */
256 stmp.data.crl = &data.crl;
259 ERR_raise(ERR_LIB_X509, X509_R_WRONG_LOOKUP_TYPE);
263 if ((b = BUF_MEM_new()) == NULL) {
264 ERR_raise(ERR_LIB_X509, ERR_R_BUF_LIB);
268 ctx = (BY_DIR *)xl->method_data;
269 h = X509_NAME_hash_ex(name, libctx, propq, &i);
272 for (i = 0; i < sk_BY_DIR_ENTRY_num(ctx->dirs); i++) {
275 BY_DIR_HASH htmp, *hent;
277 ent = sk_BY_DIR_ENTRY_value(ctx->dirs, i);
278 j = strlen(ent->dir) + 1 + 8 + 6 + 1 + 1;
279 if (!BUF_MEM_grow(b, j)) {
280 ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE);
283 if (type == X509_LU_CRL && ent->hashes) {
285 if (!CRYPTO_THREAD_read_lock(ctx->lock))
287 idx = sk_BY_DIR_HASH_find(ent->hashes, &htmp);
289 hent = sk_BY_DIR_HASH_value(ent->hashes, idx);
295 CRYPTO_THREAD_unlock(ctx->lock);
303 #ifdef OPENSSL_SYS_VMS
304 c = ent->dir[strlen(ent->dir) - 1];
305 if (c != ':' && c != '>' && c != ']') {
307 * If no separator is present, we assume the directory
308 * specifier is a logical name, and add a colon. We really
309 * should use better VMS routines for merging things like
310 * this, but this will do for now... -- Richard Levitte
319 * This is special. When c == '\0', no directory separator
322 BIO_snprintf(b->data, b->max,
323 "%s%08lx.%s%d", ent->dir, h, postfix, k);
327 BIO_snprintf(b->data, b->max,
328 "%s%c%08lx.%s%d", ent->dir, c, h, postfix, k);
330 #ifndef OPENSSL_NO_POSIX_IO
336 if (stat(b->data, &st) < 0)
341 if (type == X509_LU_X509) {
342 if ((X509_load_cert_file_ex(xl, b->data, ent->dir_type, libctx,
345 } else if (type == X509_LU_CRL) {
346 if ((X509_load_crl_file(xl, b->data, ent->dir_type)) == 0)
349 /* else case will caught higher up */
354 * we have added it to the cache so now pull it out again
356 X509_STORE_lock(xl->store_ctx);
357 j = sk_X509_OBJECT_find(xl->store_ctx->objs, &stmp);
358 tmp = sk_X509_OBJECT_value(xl->store_ctx->objs, j);
359 X509_STORE_unlock(xl->store_ctx);
361 /* If a CRL, update the last file suffix added for this */
363 if (type == X509_LU_CRL) {
364 if (!CRYPTO_THREAD_write_lock(ctx->lock))
367 * Look for entry again in case another thread added an entry
372 idx = sk_BY_DIR_HASH_find(ent->hashes, &htmp);
373 hent = sk_BY_DIR_HASH_value(ent->hashes, idx);
376 hent = OPENSSL_malloc(sizeof(*hent));
378 CRYPTO_THREAD_unlock(ctx->lock);
379 ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE);
385 if (!sk_BY_DIR_HASH_push(ent->hashes, hent)) {
386 CRYPTO_THREAD_unlock(ctx->lock);
388 ERR_raise(ERR_LIB_X509, ERR_R_MALLOC_FAILURE);
392 } else if (hent->suffix < k) {
396 CRYPTO_THREAD_unlock(ctx->lock);
402 ret->type = tmp->type;
403 memcpy(&ret->data, &tmp->data, sizeof(ret->data));
406 * Clear any errors that might have been raised processing empty
407 * or malformed files.
419 static int get_cert_by_subject(X509_LOOKUP *xl, X509_LOOKUP_TYPE type,
420 const X509_NAME *name, X509_OBJECT *ret)
422 return get_cert_by_subject_ex(xl, type, name, ret, NULL, NULL);