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));
120 if ((a->buffer = BUF_MEM_new()) == NULL) {
121 ERR_raise(ERR_LIB_X509, ERR_R_BN_LIB);
125 a->lock = CRYPTO_THREAD_lock_new();
126 if (a->lock == NULL) {
127 BUF_MEM_free(a->buffer);
128 ERR_raise(ERR_LIB_X509, ERR_R_CRYPTO_LIB);
139 static void by_dir_hash_free(BY_DIR_HASH *hash)
144 static int by_dir_hash_cmp(const BY_DIR_HASH *const *a,
145 const BY_DIR_HASH *const *b)
147 if ((*a)->hash > (*b)->hash)
149 if ((*a)->hash < (*b)->hash)
154 static void by_dir_entry_free(BY_DIR_ENTRY *ent)
156 OPENSSL_free(ent->dir);
157 sk_BY_DIR_HASH_pop_free(ent->hashes, by_dir_hash_free);
161 static void free_dir(X509_LOOKUP *lu)
163 BY_DIR *a = (BY_DIR *)lu->method_data;
165 sk_BY_DIR_ENTRY_pop_free(a->dirs, by_dir_entry_free);
166 BUF_MEM_free(a->buffer);
167 CRYPTO_THREAD_lock_free(a->lock);
171 static int add_cert_dir(BY_DIR *ctx, const char *dir, int type)
175 const char *s, *ss, *p;
177 if (dir == NULL || *dir == '\0') {
178 ERR_raise(ERR_LIB_X509, X509_R_INVALID_DIRECTORY);
185 if ((*p == LIST_SEPARATOR_CHAR) || (*p == '\0')) {
193 for (j = 0; j < sk_BY_DIR_ENTRY_num(ctx->dirs); j++) {
194 ent = sk_BY_DIR_ENTRY_value(ctx->dirs, j);
195 if (strlen(ent->dir) == len && strncmp(ent->dir, ss, len) == 0)
198 if (j < sk_BY_DIR_ENTRY_num(ctx->dirs))
200 if (ctx->dirs == NULL) {
201 ctx->dirs = sk_BY_DIR_ENTRY_new_null();
203 ERR_raise(ERR_LIB_X509, ERR_R_CRYPTO_LIB);
207 ent = OPENSSL_malloc(sizeof(*ent));
210 ent->dir_type = type;
211 ent->hashes = sk_BY_DIR_HASH_new(by_dir_hash_cmp);
212 ent->dir = OPENSSL_strndup(ss, len);
213 if (ent->dir == NULL || ent->hashes == NULL) {
214 by_dir_entry_free(ent);
217 if (!sk_BY_DIR_ENTRY_push(ctx->dirs, ent)) {
218 by_dir_entry_free(ent);
219 ERR_raise(ERR_LIB_X509, ERR_R_CRYPTO_LIB);
223 } while (*p++ != '\0');
227 static int get_cert_by_subject_ex(X509_LOOKUP *xl, X509_LOOKUP_TYPE type,
228 const X509_NAME *name, X509_OBJECT *ret,
229 OSSL_LIB_CTX *libctx, const char *propq)
240 X509_OBJECT stmp, *tmp;
241 const char *postfix = "";
247 if (type == X509_LU_X509) {
248 data.st_x509.cert_info.subject = (X509_NAME *)name; /* won't modify it */
249 stmp.data.x509 = &data.st_x509;
250 } else if (type == X509_LU_CRL) {
251 data.crl.crl.issuer = (X509_NAME *)name; /* won't modify it */
252 stmp.data.crl = &data.crl;
255 ERR_raise(ERR_LIB_X509, X509_R_WRONG_LOOKUP_TYPE);
259 if ((b = BUF_MEM_new()) == NULL) {
260 ERR_raise(ERR_LIB_X509, ERR_R_BUF_LIB);
264 ctx = (BY_DIR *)xl->method_data;
265 h = X509_NAME_hash_ex(name, libctx, propq, &i);
268 for (i = 0; i < sk_BY_DIR_ENTRY_num(ctx->dirs); i++) {
271 BY_DIR_HASH htmp, *hent;
273 ent = sk_BY_DIR_ENTRY_value(ctx->dirs, i);
274 j = strlen(ent->dir) + 1 + 8 + 6 + 1 + 1;
275 if (!BUF_MEM_grow(b, j)) {
276 ERR_raise(ERR_LIB_X509, ERR_R_BUF_LIB);
279 if (type == X509_LU_CRL && ent->hashes) {
281 if (!CRYPTO_THREAD_read_lock(ctx->lock))
283 idx = sk_BY_DIR_HASH_find(ent->hashes, &htmp);
285 hent = sk_BY_DIR_HASH_value(ent->hashes, idx);
291 CRYPTO_THREAD_unlock(ctx->lock);
299 #ifdef OPENSSL_SYS_VMS
300 c = ent->dir[strlen(ent->dir) - 1];
301 if (c != ':' && c != '>' && c != ']') {
303 * If no separator is present, we assume the directory
304 * specifier is a logical name, and add a colon. We really
305 * should use better VMS routines for merging things like
306 * this, but this will do for now... -- Richard Levitte
315 * This is special. When c == '\0', no directory separator
318 BIO_snprintf(b->data, b->max,
319 "%s%08lx.%s%d", ent->dir, h, postfix, k);
323 BIO_snprintf(b->data, b->max,
324 "%s%c%08lx.%s%d", ent->dir, c, h, postfix, k);
326 #ifndef OPENSSL_NO_POSIX_IO
332 if (stat(b->data, &st) < 0)
337 if (type == X509_LU_X509) {
338 if ((X509_load_cert_file_ex(xl, b->data, ent->dir_type, libctx,
341 } else if (type == X509_LU_CRL) {
342 if ((X509_load_crl_file(xl, b->data, ent->dir_type)) == 0)
345 /* else case will caught higher up */
350 * we have added it to the cache so now pull it out again
352 X509_STORE_lock(xl->store_ctx);
353 j = sk_X509_OBJECT_find(xl->store_ctx->objs, &stmp);
354 tmp = sk_X509_OBJECT_value(xl->store_ctx->objs, j);
355 X509_STORE_unlock(xl->store_ctx);
358 * If a CRL, update the last file suffix added for this.
359 * We don't need to add an entry if k is 0 as this is the initial value.
360 * This avoids the need for a write lock and sort operation in the
361 * simple case where no CRL is present for a hash.
363 if (type == X509_LU_CRL && k > 0) {
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);
384 if (!sk_BY_DIR_HASH_push(ent->hashes, hent)) {
385 CRYPTO_THREAD_unlock(ctx->lock);
387 ERR_raise(ERR_LIB_X509, ERR_R_CRYPTO_LIB);
393 * Ensure stack is sorted so that subsequent sk_BY_DIR_HASH_find
394 * will not mutate the stack and therefore require a write lock.
396 sk_BY_DIR_HASH_sort(ent->hashes);
397 } else if (hent->suffix < k) {
401 CRYPTO_THREAD_unlock(ctx->lock);
407 ret->type = tmp->type;
408 memcpy(&ret->data, &tmp->data, sizeof(ret->data));
411 * Clear any errors that might have been raised processing empty
412 * or malformed files.
424 static int get_cert_by_subject(X509_LOOKUP *xl, X509_LOOKUP_TYPE type,
425 const X509_NAME *name, X509_OBJECT *ret)
427 return get_cert_by_subject_ex(xl, type, name, ret, NULL, NULL);