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852c2ed260
... and only *define* them in the source files that need them.
Use DEFINE_OR_DECLARE which is set appropriately for internal builds
and not non-deprecated builds.
Deprecate stack-of-block
Better documentation
Move some ASN1 struct typedefs to types.h
Update ParseC to handle this. Most of all, ParseC needed to be more
consistent. The handlers are "recursive", in so far that they are called
again and again until they terminate, which depends entirely on what the
"massager" returns. There's a comment at the beginning of ParseC that
explains how that works. {Richard Levtte}
Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com>
Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/10669)
142 lines
3.4 KiB
C
142 lines
3.4 KiB
C
/*
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* Copyright 2011-2016 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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/*
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* DTLS code by Eric Rescorla <ekr@rtfm.com>
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*
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* Copyright (C) 2006, Network Resonance, Inc. Copyright (C) 2011, RTFM, Inc.
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*/
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#include <stdio.h>
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#include <openssl/objects.h>
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#include "ssl_local.h"
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#ifndef OPENSSL_NO_SRTP
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DEFINE_STACK_OF(SRTP_PROTECTION_PROFILE)
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static SRTP_PROTECTION_PROFILE srtp_known_profiles[] = {
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{
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"SRTP_AES128_CM_SHA1_80",
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SRTP_AES128_CM_SHA1_80,
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},
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{
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"SRTP_AES128_CM_SHA1_32",
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SRTP_AES128_CM_SHA1_32,
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},
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{
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"SRTP_AEAD_AES_128_GCM",
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SRTP_AEAD_AES_128_GCM,
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},
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{
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"SRTP_AEAD_AES_256_GCM",
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SRTP_AEAD_AES_256_GCM,
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},
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{0}
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};
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static int find_profile_by_name(char *profile_name,
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SRTP_PROTECTION_PROFILE **pptr, size_t len)
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{
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SRTP_PROTECTION_PROFILE *p;
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p = srtp_known_profiles;
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while (p->name) {
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if ((len == strlen(p->name))
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&& strncmp(p->name, profile_name, len) == 0) {
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*pptr = p;
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return 0;
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}
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p++;
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}
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return 1;
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}
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static int ssl_ctx_make_profiles(const char *profiles_string,
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STACK_OF(SRTP_PROTECTION_PROFILE) **out)
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{
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STACK_OF(SRTP_PROTECTION_PROFILE) *profiles;
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char *col;
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char *ptr = (char *)profiles_string;
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SRTP_PROTECTION_PROFILE *p;
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if ((profiles = sk_SRTP_PROTECTION_PROFILE_new_null()) == NULL) {
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SSLerr(SSL_F_SSL_CTX_MAKE_PROFILES,
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SSL_R_SRTP_COULD_NOT_ALLOCATE_PROFILES);
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return 1;
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}
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do {
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col = strchr(ptr, ':');
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if (!find_profile_by_name(ptr, &p, col ? (size_t)(col - ptr)
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: strlen(ptr))) {
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if (sk_SRTP_PROTECTION_PROFILE_find(profiles, p) >= 0) {
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SSLerr(SSL_F_SSL_CTX_MAKE_PROFILES,
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SSL_R_BAD_SRTP_PROTECTION_PROFILE_LIST);
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goto err;
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}
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if (!sk_SRTP_PROTECTION_PROFILE_push(profiles, p)) {
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SSLerr(SSL_F_SSL_CTX_MAKE_PROFILES,
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SSL_R_SRTP_COULD_NOT_ALLOCATE_PROFILES);
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goto err;
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}
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} else {
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SSLerr(SSL_F_SSL_CTX_MAKE_PROFILES,
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SSL_R_SRTP_UNKNOWN_PROTECTION_PROFILE);
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goto err;
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}
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if (col)
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ptr = col + 1;
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} while (col);
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sk_SRTP_PROTECTION_PROFILE_free(*out);
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*out = profiles;
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return 0;
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err:
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sk_SRTP_PROTECTION_PROFILE_free(profiles);
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return 1;
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}
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int SSL_CTX_set_tlsext_use_srtp(SSL_CTX *ctx, const char *profiles)
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{
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return ssl_ctx_make_profiles(profiles, &ctx->srtp_profiles);
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}
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int SSL_set_tlsext_use_srtp(SSL *s, const char *profiles)
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{
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return ssl_ctx_make_profiles(profiles, &s->srtp_profiles);
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}
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STACK_OF(SRTP_PROTECTION_PROFILE) *SSL_get_srtp_profiles(SSL *s)
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{
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if (s != NULL) {
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if (s->srtp_profiles != NULL) {
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return s->srtp_profiles;
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} else if ((s->ctx != NULL) && (s->ctx->srtp_profiles != NULL)) {
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return s->ctx->srtp_profiles;
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}
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}
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return NULL;
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}
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SRTP_PROTECTION_PROFILE *SSL_get_selected_srtp_profile(SSL *s)
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{
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return s->srtp_profile;
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}
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#endif
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