-/* ssl/t1_lib.c */
-/* 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) 1998-2006 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 2011-2016 The OpenSSL Project Authors. All Rights Reserved.
*
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
*/
+
/*
* DTLS code by Eric Rescorla <ekr@rtfm.com>
*
"SRTP_AES128_CM_SHA1_32",
SRTP_AES128_CM_SHA1_32,
},
+ {
+ "SRTP_AEAD_AES_128_GCM",
+ SRTP_AEAD_AES_128_GCM,
+ },
+ {
+ "SRTP_AEAD_AES_256_GCM",
+ SRTP_AEAD_AES_256_GCM,
+ },
{0}
};
static int find_profile_by_name(char *profile_name,
- SRTP_PROTECTION_PROFILE **pptr, unsigned len)
+ SRTP_PROTECTION_PROFILE **pptr, size_t len)
{
SRTP_PROTECTION_PROFILE *p;
do {
col = strchr(ptr, ':');
- if (!find_profile_by_name(ptr, &p,
- col ? col - ptr : (int)strlen(ptr))) {
+ if (!find_profile_by_name(ptr, &p, col ? (size_t)(col - ptr)
+ : strlen(ptr))) {
if (sk_SRTP_PROTECTION_PROFILE_find(profiles, p) >= 0) {
SSLerr(SSL_F_SSL_CTX_MAKE_PROFILES,
SSL_R_BAD_SRTP_PROTECTION_PROFILE_LIST);
- sk_SRTP_PROTECTION_PROFILE_free(profiles);
- return 1;
+ goto err;
}
- sk_SRTP_PROTECTION_PROFILE_push(profiles, p);
+ if (!sk_SRTP_PROTECTION_PROFILE_push(profiles, p)) {
+ SSLerr(SSL_F_SSL_CTX_MAKE_PROFILES,
+ SSL_R_SRTP_COULD_NOT_ALLOCATE_PROFILES);
+ goto err;
+ }
} else {
SSLerr(SSL_F_SSL_CTX_MAKE_PROFILES,
SSL_R_SRTP_UNKNOWN_PROTECTION_PROFILE);
- sk_SRTP_PROTECTION_PROFILE_free(profiles);
- return 1;
+ goto err;
}
if (col)
ptr = col + 1;
} while (col);
+ sk_SRTP_PROTECTION_PROFILE_free(*out);
+
*out = profiles;
return 0;
+ err:
+ sk_SRTP_PROTECTION_PROFILE_free(profiles);
+ return 1;
}
int SSL_CTX_set_tlsext_use_srtp(SSL_CTX *ctx, const char *profiles)
{
return s->srtp_profile;
}
-
-/*
- * Note: this function returns 0 length if there are no profiles specified
- */
-int ssl_add_clienthello_use_srtp_ext(SSL *s, unsigned char *p, int *len,
- int maxlen)
-{
- int ct = 0;
- int i;
- STACK_OF(SRTP_PROTECTION_PROFILE) *clnt = 0;
- SRTP_PROTECTION_PROFILE *prof;
-
- clnt = SSL_get_srtp_profiles(s);
- ct = sk_SRTP_PROTECTION_PROFILE_num(clnt); /* -1 if clnt == 0 */
-
- if (p) {
- if (ct == 0) {
- SSLerr(SSL_F_SSL_ADD_CLIENTHELLO_USE_SRTP_EXT,
- SSL_R_EMPTY_SRTP_PROTECTION_PROFILE_LIST);
- return 1;
- }
-
- if ((2 + ct * 2 + 1) > maxlen) {
- SSLerr(SSL_F_SSL_ADD_CLIENTHELLO_USE_SRTP_EXT,
- SSL_R_SRTP_PROTECTION_PROFILE_LIST_TOO_LONG);
- return 1;
- }
-
- /* Add the length */
- s2n(ct * 2, p);
- for (i = 0; i < ct; i++) {
- prof = sk_SRTP_PROTECTION_PROFILE_value(clnt, i);
- s2n(prof->id, p);
- }
-
- /* Add an empty use_mki value */
- *p++ = 0;
- }
-
- *len = 2 + ct * 2 + 1;
-
- return 0;
-}
-
-int ssl_parse_clienthello_use_srtp_ext(SSL *s, PACKET *pkt, int *al)
-{
- SRTP_PROTECTION_PROFILE *sprof;
- STACK_OF(SRTP_PROTECTION_PROFILE) *srvr;
- unsigned int ct, mki_len, id;
- int i, srtp_pref;
- PACKET subpkt;
-
- /* Pull off the length of the cipher suite list and check it is even */
- if (!PACKET_get_net_2(pkt, &ct)
- || (ct & 1) != 0
- || !PACKET_get_sub_packet(pkt, &subpkt, ct)) {
- SSLerr(SSL_F_SSL_PARSE_CLIENTHELLO_USE_SRTP_EXT,
- SSL_R_BAD_SRTP_PROTECTION_PROFILE_LIST);
- *al = SSL_AD_DECODE_ERROR;
- return 1;
- }
-
- srvr = SSL_get_srtp_profiles(s);
- s->srtp_profile = NULL;
- /* Search all profiles for a match initially */
- srtp_pref = sk_SRTP_PROTECTION_PROFILE_num(srvr);
-
- while (PACKET_remaining(&subpkt)) {
- if (!PACKET_get_net_2(&subpkt, &id)) {
- SSLerr(SSL_F_SSL_PARSE_CLIENTHELLO_USE_SRTP_EXT,
- SSL_R_BAD_SRTP_PROTECTION_PROFILE_LIST);
- *al = SSL_AD_DECODE_ERROR;
- return 1;
- }
-
- /*
- * Only look for match in profiles of higher preference than
- * current match.
- * If no profiles have been have been configured then this
- * does nothing.
- */
- for (i = 0; i < srtp_pref; i++) {
- sprof = sk_SRTP_PROTECTION_PROFILE_value(srvr, i);
- if (sprof->id == id) {
- s->srtp_profile = sprof;
- srtp_pref = i;
- break;
- }
- }
- }
-
- /*
- * Now extract the MKI value as a sanity check, but discard it for now
- */
- if (!PACKET_get_1(pkt, &mki_len)) {
- SSLerr(SSL_F_SSL_PARSE_CLIENTHELLO_USE_SRTP_EXT,
- SSL_R_BAD_SRTP_PROTECTION_PROFILE_LIST);
- *al = SSL_AD_DECODE_ERROR;
- return 1;
- }
-
- if (!PACKET_forward(pkt, mki_len)
- || PACKET_remaining(pkt)) {
- SSLerr(SSL_F_SSL_PARSE_CLIENTHELLO_USE_SRTP_EXT,
- SSL_R_BAD_SRTP_MKI_VALUE);
- *al = SSL_AD_DECODE_ERROR;
- return 1;
- }
-
- return 0;
-}
-
-int ssl_add_serverhello_use_srtp_ext(SSL *s, unsigned char *p, int *len,
- int maxlen)
-{
- if (p) {
- if (maxlen < 5) {
- SSLerr(SSL_F_SSL_ADD_SERVERHELLO_USE_SRTP_EXT,
- SSL_R_SRTP_PROTECTION_PROFILE_LIST_TOO_LONG);
- return 1;
- }
-
- if (s->srtp_profile == 0) {
- SSLerr(SSL_F_SSL_ADD_SERVERHELLO_USE_SRTP_EXT,
- SSL_R_USE_SRTP_NOT_NEGOTIATED);
- return 1;
- }
- s2n(2, p);
- s2n(s->srtp_profile->id, p);
- *p++ = 0;
- }
- *len = 5;
-
- return 0;
-}
-
-int ssl_parse_serverhello_use_srtp_ext(SSL *s, PACKET *pkt, int *al)
-{
- unsigned int id, ct, mki;
- int i;
-
- STACK_OF(SRTP_PROTECTION_PROFILE) *clnt;
- SRTP_PROTECTION_PROFILE *prof;
-
- if (!PACKET_get_net_2(pkt, &ct)
- || ct != 2
- || !PACKET_get_net_2(pkt, &id)
- || !PACKET_get_1(pkt, &mki)
- || PACKET_remaining(pkt) != 0) {
- SSLerr(SSL_F_SSL_PARSE_SERVERHELLO_USE_SRTP_EXT,
- SSL_R_BAD_SRTP_PROTECTION_PROFILE_LIST);
- *al = SSL_AD_DECODE_ERROR;
- return 1;
- }
-
- if (mki != 0) {
- /* Must be no MKI, since we never offer one */
- SSLerr(SSL_F_SSL_PARSE_SERVERHELLO_USE_SRTP_EXT,
- SSL_R_BAD_SRTP_MKI_VALUE);
- *al = SSL_AD_ILLEGAL_PARAMETER;
- return 1;
- }
-
- clnt = SSL_get_srtp_profiles(s);
-
- /* Throw an error if the server gave us an unsolicited extension */
- if (clnt == NULL) {
- SSLerr(SSL_F_SSL_PARSE_SERVERHELLO_USE_SRTP_EXT,
- SSL_R_NO_SRTP_PROFILES);
- *al = SSL_AD_DECODE_ERROR;
- return 1;
- }
-
- /*
- * Check to see if the server gave us something we support (and
- * presumably offered)
- */
- for (i = 0; i < sk_SRTP_PROTECTION_PROFILE_num(clnt); i++) {
- prof = sk_SRTP_PROTECTION_PROFILE_value(clnt, i);
-
- if (prof->id == id) {
- s->srtp_profile = prof;
- *al = 0;
- return 0;
- }
- }
-
- SSLerr(SSL_F_SSL_PARSE_SERVERHELLO_USE_SRTP_EXT,
- SSL_R_BAD_SRTP_PROTECTION_PROFILE_LIST);
- *al = SSL_AD_DECODE_ERROR;
- return 1;
-}
-
#endif
projects / openssl.git / blobdiff