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- /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
- * All rights reserved.
- *
- * This package is an SSL implementation written
- * by Eric Young (eay@cryptsoft.com).
- * The implementation was written so as to conform with Netscapes SSL.
- *
- * This library is free for commercial and non-commercial use as long as
- * the following conditions are aheared to. The following conditions
- * apply to all code found in this distribution, be it the RC4, RSA,
- * lhash, DES, etc., code; not just the SSL code. The SSL documentation
- * included with this distribution is covered by the same copyright terms
- * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- *
- * Copyright remains Eric Young's, and as such any Copyright notices in
- * the code are not to be removed.
- * If this package is used in a product, Eric Young should be given attribution
- * as the author of the parts of the library used.
- * This can be in the form of a textual message at program startup or
- * in documentation (online or textual) provided with the package.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * "This product includes cryptographic software written by
- * Eric Young (eay@cryptsoft.com)"
- * The word 'cryptographic' can be left out if the rouines from the library
- * being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from
- * the apps directory (application code) you must include an acknowledgement:
- * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- *
- * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * The licence and distribution terms for any publically available version or
- * derivative of this code cannot be changed. i.e. this code cannot simply be
- * copied and put under another distribution licence
- * [including the GNU Public Licence.]
- */
- /* ====================================================================
- * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- * software must display the following acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
- *
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
- * endorse or promote products derived from this software without
- * prior written permission. For written permission, please contact
- * openssl-core@openssl.org.
- *
- * 5. Products derived from this software may not be called "OpenSSL"
- * nor may "OpenSSL" appear in their names without prior written
- * permission of the OpenSSL Project.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- * acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
- *
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- *
- * This product includes cryptographic software written by Eric Young
- * (eay@cryptsoft.com). This product includes software written by Tim
- * Hudson (tjh@cryptsoft.com).
- *
- */
- /* ====================================================================
- * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
- * ECC cipher suite support in OpenSSL originally developed by
- * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. */
-
- #include <errno.h>
- #include <stdio.h>
- #include <string.h>
-
- #include <openssl/bio.h>
- #include <openssl/bn.h>
- #include <openssl/buf.h>
- #include <openssl/dh.h>
- #include <openssl/err.h>
- #include <openssl/mem.h>
- #include <openssl/obj.h>
- #include <openssl/pem.h>
- #include <openssl/x509v3.h>
-
- #include "../crypto/dh/internal.h"
- #include "../crypto/directory.h"
- #include "internal.h"
-
-
- int SSL_get_ex_data_X509_STORE_CTX_idx(void) {
- static int ssl_x509_store_ctx_idx = -1;
- int got_write_lock = 0;
-
- CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX);
-
- if (ssl_x509_store_ctx_idx < 0) {
- CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
- CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX);
- got_write_lock = 1;
-
- if (ssl_x509_store_ctx_idx < 0) {
- ssl_x509_store_ctx_idx = X509_STORE_CTX_get_ex_new_index(
- 0, "SSL for verify callback", NULL, NULL, NULL);
- }
- }
-
- if (got_write_lock) {
- CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX);
- } else {
- CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX);
- }
-
- return ssl_x509_store_ctx_idx;
- }
-
- CERT *ssl_cert_new(void) {
- CERT *ret;
-
- ret = (CERT *)OPENSSL_malloc(sizeof(CERT));
- if (ret == NULL) {
- OPENSSL_PUT_ERROR(SSL, ssl_cert_new, ERR_R_MALLOC_FAILURE);
- return NULL;
- }
- memset(ret, 0, sizeof(CERT));
-
- ret->key = &ret->pkeys[SSL_PKEY_RSA_ENC];
- return ret;
- }
-
- CERT *ssl_cert_dup(CERT *cert) {
- CERT *ret;
- int i;
-
- ret = (CERT *)OPENSSL_malloc(sizeof(CERT));
- if (ret == NULL) {
- OPENSSL_PUT_ERROR(SSL, ssl_cert_dup, ERR_R_MALLOC_FAILURE);
- return NULL;
- }
- memset(ret, 0, sizeof(CERT));
-
- ret->key = &ret->pkeys[cert->key - &cert->pkeys[0]];
- /* or ret->key = ret->pkeys + (cert->key - cert->pkeys), if you find that
- * more readable */
-
- ret->mask_k = cert->mask_k;
- ret->mask_a = cert->mask_a;
-
- if (cert->dh_tmp != NULL) {
- ret->dh_tmp = DHparams_dup(cert->dh_tmp);
- if (ret->dh_tmp == NULL) {
- OPENSSL_PUT_ERROR(SSL, ssl_cert_dup, ERR_R_DH_LIB);
- goto err;
- }
- if (cert->dh_tmp->priv_key) {
- BIGNUM *b = BN_dup(cert->dh_tmp->priv_key);
- if (!b) {
- OPENSSL_PUT_ERROR(SSL, ssl_cert_dup, ERR_R_BN_LIB);
- goto err;
- }
- ret->dh_tmp->priv_key = b;
- }
- if (cert->dh_tmp->pub_key) {
- BIGNUM *b = BN_dup(cert->dh_tmp->pub_key);
- if (!b) {
- OPENSSL_PUT_ERROR(SSL, ssl_cert_dup, ERR_R_BN_LIB);
- goto err;
- }
- ret->dh_tmp->pub_key = b;
- }
- }
- ret->dh_tmp_cb = cert->dh_tmp_cb;
-
- ret->ecdh_nid = cert->ecdh_nid;
- ret->ecdh_tmp_cb = cert->ecdh_tmp_cb;
-
- for (i = 0; i < SSL_PKEY_NUM; i++) {
- CERT_PKEY *cpk = cert->pkeys + i;
- CERT_PKEY *rpk = ret->pkeys + i;
- if (cpk->x509 != NULL) {
- rpk->x509 = X509_up_ref(cpk->x509);
- }
-
- if (cpk->privatekey != NULL) {
- rpk->privatekey = EVP_PKEY_dup(cpk->privatekey);
- }
-
- if (cpk->chain) {
- rpk->chain = X509_chain_up_ref(cpk->chain);
- if (!rpk->chain) {
- OPENSSL_PUT_ERROR(SSL, ssl_cert_dup, ERR_R_MALLOC_FAILURE);
- goto err;
- }
- }
- }
-
- /* Copy over signature algorithm configuration. */
- if (cert->conf_sigalgs) {
- ret->conf_sigalgs = BUF_memdup(cert->conf_sigalgs, cert->conf_sigalgslen);
- if (!ret->conf_sigalgs) {
- goto err;
- }
- ret->conf_sigalgslen = cert->conf_sigalgslen;
- }
-
- if (cert->client_sigalgs) {
- ret->client_sigalgs = BUF_memdup(cert->client_sigalgs,
- cert->client_sigalgslen);
- if (!ret->client_sigalgs) {
- goto err;
- }
- ret->client_sigalgslen = cert->client_sigalgslen;
- }
-
- /* Copy any custom client certificate types */
- if (cert->client_certificate_types) {
- ret->client_certificate_types = BUF_memdup(
- cert->client_certificate_types, cert->num_client_certificate_types);
- if (!ret->client_certificate_types) {
- goto err;
- }
- ret->num_client_certificate_types = cert->num_client_certificate_types;
- }
-
- ret->cert_flags = cert->cert_flags;
-
- ret->cert_cb = cert->cert_cb;
- ret->cert_cb_arg = cert->cert_cb_arg;
-
- if (cert->verify_store) {
- CRYPTO_add(&cert->verify_store->references, 1, CRYPTO_LOCK_X509_STORE);
- ret->verify_store = cert->verify_store;
- }
-
- if (cert->chain_store) {
- CRYPTO_add(&cert->chain_store->references, 1, CRYPTO_LOCK_X509_STORE);
- ret->chain_store = cert->chain_store;
- }
-
- return ret;
-
- err:
- ssl_cert_free(ret);
- return NULL;
- }
-
- /* Free up and clear all certificates and chains */
- void ssl_cert_clear_certs(CERT *c) {
- int i;
- if (c == NULL) {
- return;
- }
-
- for (i = 0; i < SSL_PKEY_NUM; i++) {
- CERT_PKEY *cpk = c->pkeys + i;
- if (cpk->x509) {
- X509_free(cpk->x509);
- cpk->x509 = NULL;
- }
- if (cpk->privatekey) {
- EVP_PKEY_free(cpk->privatekey);
- cpk->privatekey = NULL;
- }
- if (cpk->chain) {
- sk_X509_pop_free(cpk->chain, X509_free);
- cpk->chain = NULL;
- }
- }
- }
-
- void ssl_cert_free(CERT *c) {
- if (c == NULL) {
- return;
- }
-
- if (c->dh_tmp) {
- DH_free(c->dh_tmp);
- }
-
- ssl_cert_clear_certs(c);
- if (c->peer_sigalgs) {
- OPENSSL_free(c->peer_sigalgs);
- }
- if (c->conf_sigalgs) {
- OPENSSL_free(c->conf_sigalgs);
- }
- if (c->client_sigalgs) {
- OPENSSL_free(c->client_sigalgs);
- }
- if (c->shared_sigalgs) {
- OPENSSL_free(c->shared_sigalgs);
- }
- if (c->client_certificate_types) {
- OPENSSL_free(c->client_certificate_types);
- }
- if (c->verify_store) {
- X509_STORE_free(c->verify_store);
- }
- if (c->chain_store) {
- X509_STORE_free(c->chain_store);
- }
- if (c->ciphers_raw) {
- OPENSSL_free(c->ciphers_raw);
- }
-
- OPENSSL_free(c);
- }
-
- int ssl_cert_set0_chain(CERT *c, STACK_OF(X509) * chain) {
- CERT_PKEY *cpk = c->key;
- if (!cpk) {
- return 0;
- }
- if (cpk->chain) {
- sk_X509_pop_free(cpk->chain, X509_free);
- }
- cpk->chain = chain;
- return 1;
- }
-
- int ssl_cert_set1_chain(CERT *c, STACK_OF(X509) * chain) {
- STACK_OF(X509) * dchain;
- if (!chain) {
- return ssl_cert_set0_chain(c, NULL);
- }
-
- dchain = X509_chain_up_ref(chain);
- if (!dchain) {
- return 0;
- }
-
- if (!ssl_cert_set0_chain(c, dchain)) {
- sk_X509_pop_free(dchain, X509_free);
- return 0;
- }
-
- return 1;
- }
-
- int ssl_cert_add0_chain_cert(CERT *c, X509 *x) {
- CERT_PKEY *cpk = c->key;
- if (!cpk) {
- return 0;
- }
-
- if (!cpk->chain) {
- cpk->chain = sk_X509_new_null();
- }
- if (!cpk->chain || !sk_X509_push(cpk->chain, x)) {
- return 0;
- }
-
- return 1;
- }
-
- int ssl_cert_add1_chain_cert(CERT *c, X509 *x) {
- if (!ssl_cert_add0_chain_cert(c, x)) {
- return 0;
- }
-
- X509_up_ref(x);
- return 1;
- }
-
- int ssl_cert_select_current(CERT *c, X509 *x) {
- int i;
- if (x == NULL) {
- return 0;
- }
-
- for (i = 0; i < SSL_PKEY_NUM; i++) {
- if (c->pkeys[i].x509 == x) {
- c->key = &c->pkeys[i];
- return 1;
- }
- }
-
- for (i = 0; i < SSL_PKEY_NUM; i++) {
- if (c->pkeys[i].x509 && !X509_cmp(c->pkeys[i].x509, x)) {
- c->key = &c->pkeys[i];
- return 1;
- }
- }
-
- return 0;
- }
-
- void ssl_cert_set_cert_cb(CERT *c, int (*cb)(SSL *ssl, void *arg), void *arg) {
- c->cert_cb = cb;
- c->cert_cb_arg = arg;
- }
-
- SESS_CERT *ssl_sess_cert_new(void) {
- SESS_CERT *ret;
-
- ret = OPENSSL_malloc(sizeof *ret);
- if (ret == NULL) {
- OPENSSL_PUT_ERROR(SSL, ssl_sess_cert_new, ERR_R_MALLOC_FAILURE);
- return NULL;
- }
-
- memset(ret, 0, sizeof *ret);
- ret->peer_key = &(ret->peer_pkeys[SSL_PKEY_RSA_ENC]);
-
- return ret;
- }
-
- void ssl_sess_cert_free(SESS_CERT *sc) {
- int i;
-
- if (sc == NULL) {
- return;
- }
-
- if (sc->cert_chain != NULL) {
- sk_X509_pop_free(sc->cert_chain, X509_free);
- }
-
- for (i = 0; i < SSL_PKEY_NUM; i++) {
- if (sc->peer_pkeys[i].x509 != NULL) {
- X509_free(sc->peer_pkeys[i].x509);
- }
- }
-
- if (sc->peer_dh_tmp != NULL) {
- DH_free(sc->peer_dh_tmp);
- }
- if (sc->peer_ecdh_tmp != NULL) {
- EC_KEY_free(sc->peer_ecdh_tmp);
- }
-
- OPENSSL_free(sc);
- }
-
- int ssl_set_peer_cert_type(SESS_CERT *sc, int type) {
- sc->peer_cert_type = type;
- return 1;
- }
-
- int ssl_verify_cert_chain(SSL *s, STACK_OF(X509) * sk) {
- X509 *x;
- int i;
- X509_STORE *verify_store;
- X509_STORE_CTX ctx;
-
- if (s->cert->verify_store) {
- verify_store = s->cert->verify_store;
- } else {
- verify_store = s->ctx->cert_store;
- }
-
- if (sk == NULL || sk_X509_num(sk) == 0) {
- return 0;
- }
-
- x = sk_X509_value(sk, 0);
- if (!X509_STORE_CTX_init(&ctx, verify_store, x, sk)) {
- OPENSSL_PUT_ERROR(SSL, ssl_verify_cert_chain, ERR_R_X509_LIB);
- return 0;
- }
- X509_STORE_CTX_set_ex_data(&ctx, SSL_get_ex_data_X509_STORE_CTX_idx(), s);
-
- /* We need to inherit the verify parameters. These can be determined by the
- * context: if its a server it will verify SSL client certificates or vice
- * versa. */
- X509_STORE_CTX_set_default(&ctx, s->server ? "ssl_client" : "ssl_server");
-
- /* Anything non-default in "param" should overwrite anything in the ctx. */
- X509_VERIFY_PARAM_set1(X509_STORE_CTX_get0_param(&ctx), s->param);
-
- if (s->verify_callback) {
- X509_STORE_CTX_set_verify_cb(&ctx, s->verify_callback);
- }
-
- if (s->ctx->app_verify_callback != NULL) {
- i = s->ctx->app_verify_callback(&ctx, s->ctx->app_verify_arg);
- } else {
- i = X509_verify_cert(&ctx);
- }
-
- s->verify_result = ctx.error;
- X509_STORE_CTX_cleanup(&ctx);
-
- return i;
- }
-
- static void set_client_CA_list(STACK_OF(X509_NAME) * *ca_list,
- STACK_OF(X509_NAME) * name_list) {
- if (*ca_list != NULL) {
- sk_X509_NAME_pop_free(*ca_list, X509_NAME_free);
- }
-
- *ca_list = name_list;
- }
-
- STACK_OF(X509_NAME) * SSL_dup_CA_list(STACK_OF(X509_NAME) * sk) {
- size_t i;
- STACK_OF(X509_NAME) * ret;
- X509_NAME *name;
-
- ret = sk_X509_NAME_new_null();
- for (i = 0; i < sk_X509_NAME_num(sk); i++) {
- name = X509_NAME_dup(sk_X509_NAME_value(sk, i));
- if (name == NULL || !sk_X509_NAME_push(ret, name)) {
- sk_X509_NAME_pop_free(ret, X509_NAME_free);
- return NULL;
- }
- }
-
- return ret;
- }
-
- void SSL_set_client_CA_list(SSL *s, STACK_OF(X509_NAME) * name_list) {
- set_client_CA_list(&(s->client_CA), name_list);
- }
-
- void SSL_CTX_set_client_CA_list(SSL_CTX *ctx, STACK_OF(X509_NAME) * name_list) {
- set_client_CA_list(&(ctx->client_CA), name_list);
- }
-
- STACK_OF(X509_NAME) * SSL_CTX_get_client_CA_list(const SSL_CTX *ctx) {
- return ctx->client_CA;
- }
-
- STACK_OF(X509_NAME) * SSL_get_client_CA_list(const SSL *s) {
- if (s->server) {
- if (s->client_CA != NULL) {
- return s->client_CA;
- } else {
- return s->ctx->client_CA;
- }
- } else {
- if ((s->version >> 8) == SSL3_VERSION_MAJOR && s->s3 != NULL) {
- return s->s3->tmp.ca_names;
- } else {
- return NULL;
- }
- }
- }
-
- static int add_client_CA(STACK_OF(X509_NAME) * *sk, X509 *x) {
- X509_NAME *name;
-
- if (x == NULL) {
- return 0;
- }
- if (*sk == NULL) {
- *sk = sk_X509_NAME_new_null();
- if (*sk == NULL) {
- return 0;
- }
- }
-
- name = X509_NAME_dup(X509_get_subject_name(x));
- if (name == NULL) {
- return 0;
- }
-
- if (!sk_X509_NAME_push(*sk, name)) {
- X509_NAME_free(name);
- return 0;
- }
-
- return 1;
- }
-
- int SSL_add_client_CA(SSL *ssl, X509 *x) {
- return add_client_CA(&(ssl->client_CA), x);
- }
-
- int SSL_CTX_add_client_CA(SSL_CTX *ctx, X509 *x) {
- return add_client_CA(&(ctx->client_CA), x);
- }
-
- static int xname_cmp(const X509_NAME **a, const X509_NAME **b) {
- return X509_NAME_cmp(*a, *b);
- }
-
- /* Load CA certs from a file into a STACK. Note that it is somewhat misnamed;
- * it doesn't really have anything to do with clients (except that a common use
- * for a stack of CAs is to send it to the client). Actually, it doesn't have
- * much to do with CAs, either, since it will load any old cert.
- *
- * \param file the file containing one or more certs.
- * \return a ::STACK containing the certs. */
- STACK_OF(X509_NAME) * SSL_load_client_CA_file(const char *file) {
- BIO *in;
- X509 *x = NULL;
- X509_NAME *xn = NULL;
- STACK_OF(X509_NAME) *ret = NULL, *sk;
-
- sk = sk_X509_NAME_new(xname_cmp);
- in = BIO_new(BIO_s_file());
-
- if (sk == NULL || in == NULL) {
- OPENSSL_PUT_ERROR(SSL, SSL_load_client_CA_file, ERR_R_MALLOC_FAILURE);
- goto err;
- }
-
- if (!BIO_read_filename(in, file)) {
- goto err;
- }
-
- for (;;) {
- if (PEM_read_bio_X509(in, &x, NULL, NULL) == NULL) {
- break;
- }
- if (ret == NULL) {
- ret = sk_X509_NAME_new_null();
- if (ret == NULL) {
- OPENSSL_PUT_ERROR(SSL, SSL_load_client_CA_file, ERR_R_MALLOC_FAILURE);
- goto err;
- }
- }
- xn = X509_get_subject_name(x);
- if (xn == NULL) {
- goto err;
- }
-
- /* check for duplicates */
- xn = X509_NAME_dup(xn);
- if (xn == NULL) {
- goto err;
- }
- if (sk_X509_NAME_find(sk, NULL, xn)) {
- X509_NAME_free(xn);
- } else {
- sk_X509_NAME_push(sk, xn);
- sk_X509_NAME_push(ret, xn);
- }
- }
-
- if (0) {
- err:
- if (ret != NULL) {
- sk_X509_NAME_pop_free(ret, X509_NAME_free);
- }
- ret = NULL;
- }
-
- if (sk != NULL) {
- sk_X509_NAME_free(sk);
- }
- if (in != NULL) {
- BIO_free(in);
- }
- if (x != NULL) {
- X509_free(x);
- }
- if (ret != NULL) {
- ERR_clear_error();
- }
- return ret;
- }
-
- /* Add a file of certs to a stack.
- *
- * \param stack the stack to add to.
- * \param file the file to add from. All certs in this file that are not
- * already in the stack will be added.
- * \return 1 for success, 0 for failure. Note that in the case of failure some
- * certs may have been added to \c stack. */
- int SSL_add_file_cert_subjects_to_stack(STACK_OF(X509_NAME) * stack,
- const char *file) {
- BIO *in;
- X509 *x = NULL;
- X509_NAME *xn = NULL;
- int ret = 1;
- int (*oldcmp)(const X509_NAME **a, const X509_NAME **b);
-
- oldcmp = sk_X509_NAME_set_cmp_func(stack, xname_cmp);
- in = BIO_new(BIO_s_file());
-
- if (in == NULL) {
- OPENSSL_PUT_ERROR(SSL, SSL_add_file_cert_subjects_to_stack,
- ERR_R_MALLOC_FAILURE);
- goto err;
- }
-
- if (!BIO_read_filename(in, file)) {
- goto err;
- }
-
- for (;;) {
- if (PEM_read_bio_X509(in, &x, NULL, NULL) == NULL) {
- break;
- }
- xn = X509_get_subject_name(x);
- if (xn == NULL) {
- goto err;
- }
- xn = X509_NAME_dup(xn);
- if (xn == NULL) {
- goto err;
- }
- if (sk_X509_NAME_find(stack, NULL, xn)) {
- X509_NAME_free(xn);
- } else {
- sk_X509_NAME_push(stack, xn);
- }
- }
-
- ERR_clear_error();
-
- if (0) {
- err:
- ret = 0;
- }
-
- if (in != NULL) {
- BIO_free(in);
- }
- if (x != NULL) {
- X509_free(x);
- }
-
- (void) sk_X509_NAME_set_cmp_func(stack, oldcmp);
-
- return ret;
- }
-
- /* Add a directory of certs to a stack.
- *
- * \param stack the stack to append to.
- * \param dir the directory to append from. All files in this directory will be
- * examined as potential certs. Any that are acceptable to
- * SSL_add_dir_cert_subjects_to_stack() that are not already in the stack will
- * be included.
- * \return 1 for success, 0 for failure. Note that in the case of failure some
- * certs may have been added to \c stack. */
- int SSL_add_dir_cert_subjects_to_stack(STACK_OF(X509_NAME) * stack,
- const char *dir) {
- OPENSSL_DIR_CTX *d = NULL;
- const char *filename;
- int ret = 0;
-
- CRYPTO_w_lock(CRYPTO_LOCK_READDIR);
-
- /* Note that a side effect is that the CAs will be sorted by name */
- while ((filename = OPENSSL_DIR_read(&d, dir))) {
- char buf[1024];
- int r;
-
- if (strlen(dir) + strlen(filename) + 2 > sizeof(buf)) {
- OPENSSL_PUT_ERROR(SSL, SSL_add_dir_cert_subjects_to_stack,
- SSL_R_PATH_TOO_LONG);
- goto err;
- }
-
- r = BIO_snprintf(buf, sizeof buf, "%s/%s", dir, filename);
- if (r <= 0 || r >= (int)sizeof(buf) ||
- !SSL_add_file_cert_subjects_to_stack(stack, buf)) {
- goto err;
- }
- }
-
- if (errno) {
- OPENSSL_PUT_ERROR(SSL, SSL_add_dir_cert_subjects_to_stack, ERR_R_SYS_LIB);
- ERR_add_error_data(3, "OPENSSL_DIR_read(&ctx, '", dir, "')");
- goto err;
- }
-
- ret = 1;
-
- err:
- if (d) {
- OPENSSL_DIR_end(&d);
- }
- CRYPTO_w_unlock(CRYPTO_LOCK_READDIR);
- return ret;
- }
-
- /* Add a certificate to a BUF_MEM structure */
- static int ssl_add_cert_to_buf(BUF_MEM *buf, unsigned long *l, X509 *x) {
- int n;
- uint8_t *p;
-
- n = i2d_X509(x, NULL);
- if (!BUF_MEM_grow_clean(buf, (int)(n + (*l) + 3))) {
- OPENSSL_PUT_ERROR(SSL, ssl_add_cert_to_buf, ERR_R_BUF_LIB);
- return 0;
- }
- p = (uint8_t *)&(buf->data[*l]);
- l2n3(n, p);
- i2d_X509(x, &p);
- *l += n + 3;
-
- return 1;
- }
-
- /* Add certificate chain to internal SSL BUF_MEM structure. */
- int ssl_add_cert_chain(SSL *s, CERT_PKEY *cpk, unsigned long *l) {
- BUF_MEM *buf = s->init_buf;
- int no_chain = 0;
- size_t i;
-
- X509 *x = NULL;
- STACK_OF(X509) * extra_certs;
- X509_STORE *chain_store;
-
- if (cpk) {
- x = cpk->x509;
- }
-
- if (s->cert->chain_store) {
- chain_store = s->cert->chain_store;
- } else {
- chain_store = s->ctx->cert_store;
- }
-
- /* If we have a certificate specific chain use it, else use parent ctx. */
- if (cpk && cpk->chain) {
- extra_certs = cpk->chain;
- } else {
- extra_certs = s->ctx->extra_certs;
- }
-
- if ((s->mode & SSL_MODE_NO_AUTO_CHAIN) || extra_certs) {
- no_chain = 1;
- }
-
- /* TLSv1 sends a chain with nothing in it, instead of an alert. */
- if (!BUF_MEM_grow_clean(buf, 10)) {
- OPENSSL_PUT_ERROR(SSL, ssl_add_cert_chain, ERR_R_BUF_LIB);
- return 0;
- }
-
- if (x != NULL) {
- if (no_chain) {
- if (!ssl_add_cert_to_buf(buf, l, x)) {
- return 0;
- }
- } else {
- X509_STORE_CTX xs_ctx;
-
- if (!X509_STORE_CTX_init(&xs_ctx, chain_store, x, NULL)) {
- OPENSSL_PUT_ERROR(SSL, ssl_add_cert_chain, ERR_R_X509_LIB);
- return 0;
- }
- X509_verify_cert(&xs_ctx);
- /* Don't leave errors in the queue */
- ERR_clear_error();
- for (i = 0; i < sk_X509_num(xs_ctx.chain); i++) {
- x = sk_X509_value(xs_ctx.chain, i);
-
- if (!ssl_add_cert_to_buf(buf, l, x)) {
- X509_STORE_CTX_cleanup(&xs_ctx);
- return 0;
- }
- }
- X509_STORE_CTX_cleanup(&xs_ctx);
- }
- }
-
- for (i = 0; i < sk_X509_num(extra_certs); i++) {
- x = sk_X509_value(extra_certs, i);
- if (!ssl_add_cert_to_buf(buf, l, x)) {
- return 0;
- }
- }
-
- return 1;
- }
-
- /* Build a certificate chain for current certificate */
- int ssl_build_cert_chain(CERT *c, X509_STORE *chain_store, int flags) {
- CERT_PKEY *cpk = c->key;
- X509_STORE_CTX xs_ctx;
- STACK_OF(X509) *chain = NULL, *untrusted = NULL;
- X509 *x;
- int i, rv = 0;
- unsigned long error;
-
- if (!cpk->x509) {
- OPENSSL_PUT_ERROR(SSL, ssl_build_cert_chain, SSL_R_NO_CERTIFICATE_SET);
- goto err;
- }
-
- /* Rearranging and check the chain: add everything to a store */
- if (flags & SSL_BUILD_CHAIN_FLAG_CHECK) {
- size_t j;
- chain_store = X509_STORE_new();
- if (!chain_store) {
- goto err;
- }
-
- for (j = 0; j < sk_X509_num(cpk->chain); j++) {
- x = sk_X509_value(cpk->chain, j);
- if (!X509_STORE_add_cert(chain_store, x)) {
- error = ERR_peek_last_error();
- if (ERR_GET_LIB(error) != ERR_LIB_X509 ||
- ERR_GET_REASON(error) != X509_R_CERT_ALREADY_IN_HASH_TABLE) {
- goto err;
- }
- ERR_clear_error();
- }
- }
-
- /* Add EE cert too: it might be self signed */
- if (!X509_STORE_add_cert(chain_store, cpk->x509)) {
- error = ERR_peek_last_error();
- if (ERR_GET_LIB(error) != ERR_LIB_X509 ||
- ERR_GET_REASON(error) != X509_R_CERT_ALREADY_IN_HASH_TABLE) {
- goto err;
- }
- ERR_clear_error();
- }
- } else {
- if (c->chain_store) {
- chain_store = c->chain_store;
- }
-
- if (flags & SSL_BUILD_CHAIN_FLAG_UNTRUSTED) {
- untrusted = cpk->chain;
- }
- }
-
- if (!X509_STORE_CTX_init(&xs_ctx, chain_store, cpk->x509, untrusted)) {
- OPENSSL_PUT_ERROR(SSL, ssl_build_cert_chain, ERR_R_X509_LIB);
- goto err;
- }
-
- i = X509_verify_cert(&xs_ctx);
- if (i <= 0 && flags & SSL_BUILD_CHAIN_FLAG_IGNORE_ERROR) {
- if (flags & SSL_BUILD_CHAIN_FLAG_CLEAR_ERROR) {
- ERR_clear_error();
- }
- i = 1;
- rv = 2;
- }
-
- if (i > 0) {
- chain = X509_STORE_CTX_get1_chain(&xs_ctx);
- }
- if (i <= 0) {
- OPENSSL_PUT_ERROR(SSL, ssl_build_cert_chain,
- SSL_R_CERTIFICATE_VERIFY_FAILED);
- i = X509_STORE_CTX_get_error(&xs_ctx);
- ERR_add_error_data(2, "Verify error:", X509_verify_cert_error_string(i));
-
- X509_STORE_CTX_cleanup(&xs_ctx);
- goto err;
- }
-
- X509_STORE_CTX_cleanup(&xs_ctx);
- if (cpk->chain) {
- sk_X509_pop_free(cpk->chain, X509_free);
- }
-
- /* Remove EE certificate from chain */
- x = sk_X509_shift(chain);
- X509_free(x);
- if (flags & SSL_BUILD_CHAIN_FLAG_NO_ROOT) {
- if (sk_X509_num(chain) > 0) {
- /* See if last cert is self signed */
- x = sk_X509_value(chain, sk_X509_num(chain) - 1);
- X509_check_purpose(x, -1, 0);
- if (x->ex_flags & EXFLAG_SS) {
- x = sk_X509_pop(chain);
- X509_free(x);
- }
- }
- }
-
- cpk->chain = chain;
- if (rv == 0) {
- rv = 1;
- }
-
- err:
- if (flags & SSL_BUILD_CHAIN_FLAG_CHECK) {
- X509_STORE_free(chain_store);
- }
-
- return rv;
- }
-
- int ssl_cert_set_cert_store(CERT *c, X509_STORE *store, int chain, int ref) {
- X509_STORE **pstore;
- if (chain) {
- pstore = &c->chain_store;
- } else {
- pstore = &c->verify_store;
- }
-
- if (*pstore) {
- X509_STORE_free(*pstore);
- }
- *pstore = store;
-
- if (ref && store) {
- CRYPTO_add(&store->references, 1, CRYPTO_LOCK_X509_STORE);
- }
- return 1;
- }
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