59937045ec
Or at least group them together and make a passing attempt to document them. The legacy X.509 stack itself remains largely untouched and most of the parameters have to do with it. Change-Id: I9e11e2ad1bbeef53478c787344398c0d8d1b3876 Reviewed-on: https://boringssl-review.googlesource.com/5942 Reviewed-by: Adam Langley <agl@google.com>
624 lines
17 KiB
C
624 lines
17 KiB
C
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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*/
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/* ====================================================================
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* Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* openssl-core@openssl.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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*
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*/
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#include <openssl/ssl.h>
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#include <errno.h>
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#include <string.h>
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#include <openssl/bio.h>
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#include <openssl/err.h>
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#include <openssl/mem.h>
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#include <openssl/pem.h>
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#include <openssl/stack.h>
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#include <openssl/x509.h>
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#include "../crypto/directory.h"
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#include "internal.h"
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static int xname_cmp(const X509_NAME **a, const X509_NAME **b) {
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return X509_NAME_cmp(*a, *b);
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}
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/* TODO(davidben): Is there any reason this doesn't call
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* |SSL_add_file_cert_subjects_to_stack|? */
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STACK_OF(X509_NAME) *SSL_load_client_CA_file(const char *file) {
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BIO *in;
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X509 *x = NULL;
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X509_NAME *xn = NULL;
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STACK_OF(X509_NAME) *ret = NULL, *sk;
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sk = sk_X509_NAME_new(xname_cmp);
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in = BIO_new(BIO_s_file());
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if (sk == NULL || in == NULL) {
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OPENSSL_PUT_ERROR(SSL, ERR_R_MALLOC_FAILURE);
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goto err;
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}
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if (!BIO_read_filename(in, file)) {
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goto err;
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}
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for (;;) {
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if (PEM_read_bio_X509(in, &x, NULL, NULL) == NULL) {
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break;
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}
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if (ret == NULL) {
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ret = sk_X509_NAME_new_null();
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if (ret == NULL) {
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OPENSSL_PUT_ERROR(SSL, ERR_R_MALLOC_FAILURE);
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goto err;
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}
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}
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xn = X509_get_subject_name(x);
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if (xn == NULL) {
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goto err;
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}
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/* check for duplicates */
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xn = X509_NAME_dup(xn);
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if (xn == NULL) {
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goto err;
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}
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if (sk_X509_NAME_find(sk, NULL, xn)) {
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X509_NAME_free(xn);
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} else {
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sk_X509_NAME_push(sk, xn);
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sk_X509_NAME_push(ret, xn);
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}
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}
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if (0) {
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err:
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sk_X509_NAME_pop_free(ret, X509_NAME_free);
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ret = NULL;
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}
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sk_X509_NAME_free(sk);
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BIO_free(in);
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X509_free(x);
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if (ret != NULL) {
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ERR_clear_error();
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}
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return ret;
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}
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int SSL_add_file_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack,
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const char *file) {
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BIO *in;
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X509 *x = NULL;
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X509_NAME *xn = NULL;
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int ret = 1;
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int (*oldcmp)(const X509_NAME **a, const X509_NAME **b);
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oldcmp = sk_X509_NAME_set_cmp_func(stack, xname_cmp);
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in = BIO_new(BIO_s_file());
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if (in == NULL) {
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OPENSSL_PUT_ERROR(SSL, ERR_R_MALLOC_FAILURE);
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goto err;
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}
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if (!BIO_read_filename(in, file)) {
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goto err;
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}
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for (;;) {
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if (PEM_read_bio_X509(in, &x, NULL, NULL) == NULL) {
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break;
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}
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xn = X509_get_subject_name(x);
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if (xn == NULL) {
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goto err;
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}
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xn = X509_NAME_dup(xn);
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if (xn == NULL) {
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goto err;
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}
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if (sk_X509_NAME_find(stack, NULL, xn)) {
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X509_NAME_free(xn);
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} else {
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sk_X509_NAME_push(stack, xn);
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}
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}
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ERR_clear_error();
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if (0) {
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err:
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ret = 0;
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}
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BIO_free(in);
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X509_free(x);
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(void) sk_X509_NAME_set_cmp_func(stack, oldcmp);
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return ret;
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}
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/* Add a directory of certs to a stack.
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*
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* \param stack the stack to append to.
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* \param dir the directory to append from. All files in this directory will be
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* examined as potential certs. Any that are acceptable to
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* SSL_add_dir_cert_subjects_to_stack() that are not already in the stack will
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* be included.
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* \return 1 for success, 0 for failure. Note that in the case of failure some
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* certs may have been added to \c stack. */
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int SSL_add_dir_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack,
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const char *dir) {
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OPENSSL_DIR_CTX *d = NULL;
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const char *filename;
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int ret = 0;
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/* Note that a side effect is that the CAs will be sorted by name */
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while ((filename = OPENSSL_DIR_read(&d, dir))) {
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char buf[1024];
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int r;
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if (strlen(dir) + strlen(filename) + 2 > sizeof(buf)) {
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OPENSSL_PUT_ERROR(SSL, SSL_R_PATH_TOO_LONG);
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goto err;
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}
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r = BIO_snprintf(buf, sizeof buf, "%s/%s", dir, filename);
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if (r <= 0 || r >= (int)sizeof(buf) ||
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!SSL_add_file_cert_subjects_to_stack(stack, buf)) {
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goto err;
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}
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}
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if (errno) {
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OPENSSL_PUT_ERROR(SSL, ERR_R_SYS_LIB);
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ERR_add_error_data(3, "OPENSSL_DIR_read(&ctx, '", dir, "')");
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goto err;
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}
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ret = 1;
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err:
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if (d) {
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OPENSSL_DIR_end(&d);
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}
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return ret;
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}
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int SSL_use_certificate_file(SSL *ssl, const char *file, int type) {
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int reason_code;
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BIO *in;
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int ret = 0;
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X509 *x = NULL;
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in = BIO_new(BIO_s_file());
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if (in == NULL) {
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OPENSSL_PUT_ERROR(SSL, ERR_R_BUF_LIB);
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goto end;
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}
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if (BIO_read_filename(in, file) <= 0) {
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OPENSSL_PUT_ERROR(SSL, ERR_R_SYS_LIB);
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goto end;
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}
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if (type == SSL_FILETYPE_ASN1) {
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reason_code = ERR_R_ASN1_LIB;
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x = d2i_X509_bio(in, NULL);
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} else if (type == SSL_FILETYPE_PEM) {
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reason_code = ERR_R_PEM_LIB;
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x = PEM_read_bio_X509(in, NULL, ssl->ctx->default_passwd_callback,
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ssl->ctx->default_passwd_callback_userdata);
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} else {
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OPENSSL_PUT_ERROR(SSL, SSL_R_BAD_SSL_FILETYPE);
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goto end;
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}
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if (x == NULL) {
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OPENSSL_PUT_ERROR(SSL, reason_code);
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goto end;
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}
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ret = SSL_use_certificate(ssl, x);
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end:
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X509_free(x);
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BIO_free(in);
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return ret;
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}
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int SSL_use_RSAPrivateKey_file(SSL *ssl, const char *file, int type) {
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int reason_code, ret = 0;
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BIO *in;
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RSA *rsa = NULL;
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in = BIO_new(BIO_s_file());
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if (in == NULL) {
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OPENSSL_PUT_ERROR(SSL, ERR_R_BUF_LIB);
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goto end;
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}
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if (BIO_read_filename(in, file) <= 0) {
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OPENSSL_PUT_ERROR(SSL, ERR_R_SYS_LIB);
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goto end;
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}
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if (type == SSL_FILETYPE_ASN1) {
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reason_code = ERR_R_ASN1_LIB;
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rsa = d2i_RSAPrivateKey_bio(in, NULL);
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} else if (type == SSL_FILETYPE_PEM) {
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reason_code = ERR_R_PEM_LIB;
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rsa =
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PEM_read_bio_RSAPrivateKey(in, NULL, ssl->ctx->default_passwd_callback,
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ssl->ctx->default_passwd_callback_userdata);
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} else {
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OPENSSL_PUT_ERROR(SSL, SSL_R_BAD_SSL_FILETYPE);
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goto end;
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}
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if (rsa == NULL) {
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OPENSSL_PUT_ERROR(SSL, reason_code);
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goto end;
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}
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ret = SSL_use_RSAPrivateKey(ssl, rsa);
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RSA_free(rsa);
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end:
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BIO_free(in);
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return ret;
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}
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int SSL_use_PrivateKey_file(SSL *ssl, const char *file, int type) {
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int reason_code, ret = 0;
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BIO *in;
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EVP_PKEY *pkey = NULL;
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in = BIO_new(BIO_s_file());
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if (in == NULL) {
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OPENSSL_PUT_ERROR(SSL, ERR_R_BUF_LIB);
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goto end;
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}
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if (BIO_read_filename(in, file) <= 0) {
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OPENSSL_PUT_ERROR(SSL, ERR_R_SYS_LIB);
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goto end;
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}
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if (type == SSL_FILETYPE_PEM) {
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reason_code = ERR_R_PEM_LIB;
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pkey = PEM_read_bio_PrivateKey(in, NULL, ssl->ctx->default_passwd_callback,
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ssl->ctx->default_passwd_callback_userdata);
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} else if (type == SSL_FILETYPE_ASN1) {
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reason_code = ERR_R_ASN1_LIB;
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pkey = d2i_PrivateKey_bio(in, NULL);
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} else {
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OPENSSL_PUT_ERROR(SSL, SSL_R_BAD_SSL_FILETYPE);
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goto end;
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}
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if (pkey == NULL) {
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OPENSSL_PUT_ERROR(SSL, reason_code);
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goto end;
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}
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ret = SSL_use_PrivateKey(ssl, pkey);
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EVP_PKEY_free(pkey);
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end:
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BIO_free(in);
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return ret;
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}
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int SSL_CTX_use_certificate_file(SSL_CTX *ctx, const char *file, int type) {
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int reason_code;
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BIO *in;
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int ret = 0;
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X509 *x = NULL;
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in = BIO_new(BIO_s_file());
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if (in == NULL) {
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OPENSSL_PUT_ERROR(SSL, ERR_R_BUF_LIB);
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goto end;
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}
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if (BIO_read_filename(in, file) <= 0) {
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OPENSSL_PUT_ERROR(SSL, ERR_R_SYS_LIB);
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goto end;
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}
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if (type == SSL_FILETYPE_ASN1) {
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reason_code = ERR_R_ASN1_LIB;
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x = d2i_X509_bio(in, NULL);
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} else if (type == SSL_FILETYPE_PEM) {
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reason_code = ERR_R_PEM_LIB;
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x = PEM_read_bio_X509(in, NULL, ctx->default_passwd_callback,
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ctx->default_passwd_callback_userdata);
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} else {
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OPENSSL_PUT_ERROR(SSL, SSL_R_BAD_SSL_FILETYPE);
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goto end;
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}
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if (x == NULL) {
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OPENSSL_PUT_ERROR(SSL, reason_code);
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goto end;
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}
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ret = SSL_CTX_use_certificate(ctx, x);
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end:
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X509_free(x);
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BIO_free(in);
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return ret;
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}
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int SSL_CTX_use_RSAPrivateKey_file(SSL_CTX *ctx, const char *file, int type) {
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int reason_code, ret = 0;
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BIO *in;
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RSA *rsa = NULL;
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in = BIO_new(BIO_s_file());
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if (in == NULL) {
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OPENSSL_PUT_ERROR(SSL, ERR_R_BUF_LIB);
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goto end;
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}
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if (BIO_read_filename(in, file) <= 0) {
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OPENSSL_PUT_ERROR(SSL, ERR_R_SYS_LIB);
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goto end;
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}
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if (type == SSL_FILETYPE_ASN1) {
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reason_code = ERR_R_ASN1_LIB;
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rsa = d2i_RSAPrivateKey_bio(in, NULL);
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} else if (type == SSL_FILETYPE_PEM) {
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reason_code = ERR_R_PEM_LIB;
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rsa = PEM_read_bio_RSAPrivateKey(in, NULL, ctx->default_passwd_callback,
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ctx->default_passwd_callback_userdata);
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} else {
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OPENSSL_PUT_ERROR(SSL, SSL_R_BAD_SSL_FILETYPE);
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goto end;
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}
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if (rsa == NULL) {
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OPENSSL_PUT_ERROR(SSL, reason_code);
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goto end;
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}
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ret = SSL_CTX_use_RSAPrivateKey(ctx, rsa);
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RSA_free(rsa);
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end:
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BIO_free(in);
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return ret;
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}
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|
int SSL_CTX_use_PrivateKey_file(SSL_CTX *ctx, const char *file, int type) {
|
|
int reason_code, ret = 0;
|
|
BIO *in;
|
|
EVP_PKEY *pkey = NULL;
|
|
|
|
in = BIO_new(BIO_s_file());
|
|
if (in == NULL) {
|
|
OPENSSL_PUT_ERROR(SSL, ERR_R_BUF_LIB);
|
|
goto end;
|
|
}
|
|
|
|
if (BIO_read_filename(in, file) <= 0) {
|
|
OPENSSL_PUT_ERROR(SSL, ERR_R_SYS_LIB);
|
|
goto end;
|
|
}
|
|
|
|
if (type == SSL_FILETYPE_PEM) {
|
|
reason_code = ERR_R_PEM_LIB;
|
|
pkey = PEM_read_bio_PrivateKey(in, NULL, ctx->default_passwd_callback,
|
|
ctx->default_passwd_callback_userdata);
|
|
} else if (type == SSL_FILETYPE_ASN1) {
|
|
reason_code = ERR_R_ASN1_LIB;
|
|
pkey = d2i_PrivateKey_bio(in, NULL);
|
|
} else {
|
|
OPENSSL_PUT_ERROR(SSL, SSL_R_BAD_SSL_FILETYPE);
|
|
goto end;
|
|
}
|
|
|
|
if (pkey == NULL) {
|
|
OPENSSL_PUT_ERROR(SSL, reason_code);
|
|
goto end;
|
|
}
|
|
ret = SSL_CTX_use_PrivateKey(ctx, pkey);
|
|
EVP_PKEY_free(pkey);
|
|
|
|
end:
|
|
BIO_free(in);
|
|
return ret;
|
|
}
|
|
|
|
/* Read a file that contains our certificate in "PEM" format, possibly followed
|
|
* by a sequence of CA certificates that should be sent to the peer in the
|
|
* Certificate message. */
|
|
int SSL_CTX_use_certificate_chain_file(SSL_CTX *ctx, const char *file) {
|
|
BIO *in;
|
|
int ret = 0;
|
|
X509 *x = NULL;
|
|
|
|
ERR_clear_error(); /* clear error stack for SSL_CTX_use_certificate() */
|
|
|
|
in = BIO_new(BIO_s_file());
|
|
if (in == NULL) {
|
|
OPENSSL_PUT_ERROR(SSL, ERR_R_BUF_LIB);
|
|
goto end;
|
|
}
|
|
|
|
if (BIO_read_filename(in, file) <= 0) {
|
|
OPENSSL_PUT_ERROR(SSL, ERR_R_SYS_LIB);
|
|
goto end;
|
|
}
|
|
|
|
x = PEM_read_bio_X509_AUX(in, NULL, ctx->default_passwd_callback,
|
|
ctx->default_passwd_callback_userdata);
|
|
if (x == NULL) {
|
|
OPENSSL_PUT_ERROR(SSL, ERR_R_PEM_LIB);
|
|
goto end;
|
|
}
|
|
|
|
ret = SSL_CTX_use_certificate(ctx, x);
|
|
|
|
if (ERR_peek_error() != 0) {
|
|
ret = 0; /* Key/certificate mismatch doesn't imply ret==0 ... */
|
|
}
|
|
|
|
if (ret) {
|
|
/* If we could set up our certificate, now proceed to the CA
|
|
* certificates. */
|
|
X509 *ca;
|
|
int r;
|
|
uint32_t err;
|
|
|
|
SSL_CTX_clear_chain_certs(ctx);
|
|
|
|
while ((ca = PEM_read_bio_X509(in, NULL, ctx->default_passwd_callback,
|
|
ctx->default_passwd_callback_userdata)) !=
|
|
NULL) {
|
|
r = SSL_CTX_add0_chain_cert(ctx, ca);
|
|
if (!r) {
|
|
X509_free(ca);
|
|
ret = 0;
|
|
goto end;
|
|
}
|
|
/* Note that we must not free r if it was successfully added to the chain
|
|
* (while we must free the main certificate, since its reference count is
|
|
* increased by SSL_CTX_use_certificate). */
|
|
}
|
|
|
|
/* When the while loop ends, it's usually just EOF. */
|
|
err = ERR_peek_last_error();
|
|
if (ERR_GET_LIB(err) == ERR_LIB_PEM &&
|
|
ERR_GET_REASON(err) == PEM_R_NO_START_LINE) {
|
|
ERR_clear_error();
|
|
} else {
|
|
ret = 0; /* some real error */
|
|
}
|
|
}
|
|
|
|
end:
|
|
X509_free(x);
|
|
BIO_free(in);
|
|
return ret;
|
|
}
|
|
|
|
void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb) {
|
|
ctx->default_passwd_callback = cb;
|
|
}
|
|
|
|
void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *data) {
|
|
ctx->default_passwd_callback_userdata = data;
|
|
}
|
|
|
|
IMPLEMENT_PEM_rw(SSL_SESSION, SSL_SESSION, PEM_STRING_SSL_SESSION, SSL_SESSION)
|