diff options
Diffstat (limited to 'lib/libssl/src/ssl/d1_srtp.c')
| -rw-r--r-- | lib/libssl/src/ssl/d1_srtp.c | 473 |
1 files changed, 0 insertions, 473 deletions
diff --git a/lib/libssl/src/ssl/d1_srtp.c b/lib/libssl/src/ssl/d1_srtp.c deleted file mode 100644 index 45ce5b8d3eb..00000000000 --- a/lib/libssl/src/ssl/d1_srtp.c +++ /dev/null @@ -1,473 +0,0 @@ -/* $OpenBSD: d1_srtp.c,v 1.15 2015/07/31 00:35:06 doug Exp $ */ -/* 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). - * - */ -/* - * DTLS code by Eric Rescorla <ekr@rtfm.com> - * - * Copyright (C) 2006, Network Resonance, Inc. - * Copyright (C) 2011, RTFM, Inc. - */ - -#include <stdio.h> - -#include <openssl/objects.h> - -#include "ssl_locl.h" - -#ifndef OPENSSL_NO_SRTP - -#include "bytestring.h" -#include "srtp.h" - -static SRTP_PROTECTION_PROFILE srtp_known_profiles[] = { - { - "SRTP_AES128_CM_SHA1_80", - SRTP_AES128_CM_SHA1_80, - }, - { - "SRTP_AES128_CM_SHA1_32", - SRTP_AES128_CM_SHA1_32, - }, - {0} -}; - -static int -find_profile_by_name(char *profile_name, SRTP_PROTECTION_PROFILE **pptr, - unsigned len) -{ - SRTP_PROTECTION_PROFILE *p; - - p = srtp_known_profiles; - while (p->name) { - if ((len == strlen(p->name)) && - !strncmp(p->name, profile_name, len)) { - *pptr = p; - return 0; - } - - p++; - } - - return 1; -} - -static int -find_profile_by_num(unsigned profile_num, SRTP_PROTECTION_PROFILE **pptr) -{ - SRTP_PROTECTION_PROFILE *p; - - p = srtp_known_profiles; - while (p->name) { - if (p->id == profile_num) { - *pptr = p; - return 0; - } - p++; - } - - return 1; -} - -static int -ssl_ctx_make_profiles(const char *profiles_string, - STACK_OF(SRTP_PROTECTION_PROFILE) **out) -{ - STACK_OF(SRTP_PROTECTION_PROFILE) *profiles; - - char *col; - char *ptr = (char *)profiles_string; - - SRTP_PROTECTION_PROFILE *p; - - if (!(profiles = sk_SRTP_PROTECTION_PROFILE_new_null())) { - SSLerr(SSL_F_SSL_CTX_MAKE_PROFILES, - SSL_R_SRTP_COULD_NOT_ALLOCATE_PROFILES); - return 1; - } - - do { - col = strchr(ptr, ':'); - - if (!find_profile_by_name(ptr, &p, - col ? col - ptr : (int)strlen(ptr))) { - sk_SRTP_PROTECTION_PROFILE_push(profiles, p); - } else { - SSLerr(SSL_F_SSL_CTX_MAKE_PROFILES, - SSL_R_SRTP_UNKNOWN_PROTECTION_PROFILE); - sk_SRTP_PROTECTION_PROFILE_free(profiles); - return 1; - } - - if (col) - ptr = col + 1; - } while (col); - - *out = profiles; - - return 0; -} - -int -SSL_CTX_set_tlsext_use_srtp(SSL_CTX *ctx, const char *profiles) -{ - return ssl_ctx_make_profiles(profiles, &ctx->srtp_profiles); -} - -int -SSL_set_tlsext_use_srtp(SSL *s, const char *profiles) -{ - return ssl_ctx_make_profiles(profiles, &s->srtp_profiles); -} - - -STACK_OF(SRTP_PROTECTION_PROFILE) * -SSL_get_srtp_profiles(SSL *s) -{ - if (s != NULL) { - if (s->srtp_profiles != NULL) { - return s->srtp_profiles; - } else if ((s->ctx != NULL) && - (s->ctx->srtp_profiles != NULL)) { - return s->ctx->srtp_profiles; - } - } - - return NULL; -} - -SRTP_PROTECTION_PROFILE * -SSL_get_selected_srtp_profile(SSL *s) -{ - 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, const unsigned char *d, int len, - int *al) -{ - SRTP_PROTECTION_PROFILE *cprof, *sprof; - STACK_OF(SRTP_PROTECTION_PROFILE) *clnt = 0, *srvr; - int i, j; - int ret = 1; - uint16_t id; - CBS cbs, ciphers, mki; - - if (len < 0) { - SSLerr(SSL_F_SSL_PARSE_CLIENTHELLO_USE_SRTP_EXT, - SSL_R_BAD_SRTP_PROTECTION_PROFILE_LIST); - *al = SSL_AD_DECODE_ERROR; - goto done; - } - - CBS_init(&cbs, d, len); - /* Pull off the cipher suite list */ - if (!CBS_get_u16_length_prefixed(&cbs, &ciphers) || - CBS_len(&ciphers) % 2) { - SSLerr(SSL_F_SSL_PARSE_CLIENTHELLO_USE_SRTP_EXT, - SSL_R_BAD_SRTP_PROTECTION_PROFILE_LIST); - *al = SSL_AD_DECODE_ERROR; - goto done; - } - - clnt = sk_SRTP_PROTECTION_PROFILE_new_null(); - - while (CBS_len(&ciphers) > 0) { - if (!CBS_get_u16(&ciphers, &id)) { - SSLerr(SSL_F_SSL_PARSE_CLIENTHELLO_USE_SRTP_EXT, - SSL_R_BAD_SRTP_PROTECTION_PROFILE_LIST); - *al = SSL_AD_DECODE_ERROR; - goto done; - } - - if (!find_profile_by_num(id, &cprof)) - sk_SRTP_PROTECTION_PROFILE_push(clnt, cprof); - else - ; /* Ignore */ - } - - /* Extract the MKI value as a sanity check, but discard it for now. */ - if (!CBS_get_u8_length_prefixed(&cbs, &mki) || - CBS_len(&cbs) != 0) { - SSLerr(SSL_F_SSL_PARSE_CLIENTHELLO_USE_SRTP_EXT, - SSL_R_BAD_SRTP_MKI_VALUE); - *al = SSL_AD_DECODE_ERROR; - goto done; - } - - srvr = SSL_get_srtp_profiles(s); - - /* - * Pick our most preferred profile. If no profiles have been - * configured then the outer loop doesn't run - * (sk_SRTP_PROTECTION_PROFILE_num() = -1) - * and so we just return without doing anything. - */ - for (i = 0; i < sk_SRTP_PROTECTION_PROFILE_num(srvr); i++) { - sprof = sk_SRTP_PROTECTION_PROFILE_value(srvr, i); - - for (j = 0; j < sk_SRTP_PROTECTION_PROFILE_num(clnt); j++) { - cprof = sk_SRTP_PROTECTION_PROFILE_value(clnt, j); - - if (cprof->id == sprof->id) { - s->srtp_profile = sprof; - *al = 0; - ret = 0; - goto done; - } - } - } - - ret = 0; - -done: - if (clnt) - sk_SRTP_PROTECTION_PROFILE_free(clnt); - - return ret; -} - -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, const unsigned char *d, int len, int *al) -{ - STACK_OF(SRTP_PROTECTION_PROFILE) *clnt; - SRTP_PROTECTION_PROFILE *prof; - int i; - uint16_t id; - CBS cbs, profile_ids, mki; - - if (len < 0) { - SSLerr(SSL_F_SSL_PARSE_SERVERHELLO_USE_SRTP_EXT, - SSL_R_BAD_SRTP_PROTECTION_PROFILE_LIST); - *al = SSL_AD_DECODE_ERROR; - return 1; - } - - CBS_init(&cbs, d, len); - - /* - * As per RFC 5764 section 4.1.1, server response MUST be a single - * profile id. - */ - if (!CBS_get_u16_length_prefixed(&cbs, &profile_ids) || - !CBS_get_u16(&profile_ids, &id) || CBS_len(&profile_ids) != 0) { - SSLerr(SSL_F_SSL_PARSE_SERVERHELLO_USE_SRTP_EXT, - SSL_R_BAD_SRTP_PROTECTION_PROFILE_LIST); - *al = SSL_AD_DECODE_ERROR; - return 1; - } - - /* Must be no MKI, since we never offer one. */ - if (!CBS_get_u8_length_prefixed(&cbs, &mki) || CBS_len(&mki) != 0) { - 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 |