Coverage Report

Created: 2018-08-29 13:53

/src/openssl/ssl/d1_srtp.c
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Count
Source (jump to first uncovered line)
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/*
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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 OpenSSL license (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_locl.h"
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#ifndef OPENSSL_NO_SRTP
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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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0
{
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0
    SRTP_PROTECTION_PROFILE *p;
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0
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0
    p = srtp_known_profiles;
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0
    while (p->name) {
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0
        if ((len == strlen(p->name))
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0
            && strncmp(p->name, profile_name, len) == 0) {
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0
            *pptr = p;
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0
            return 0;
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0
        }
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0
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0
        p++;
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0
    }
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0
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0
    return 1;
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0
}
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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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0
{
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0
    STACK_OF(SRTP_PROTECTION_PROFILE) *profiles;
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0
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0
    char *col;
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0
    char *ptr = (char *)profiles_string;
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0
    SRTP_PROTECTION_PROFILE *p;
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0
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0
    if ((profiles = sk_SRTP_PROTECTION_PROFILE_new_null()) == NULL) {
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0
        SSLerr(SSL_F_SSL_CTX_MAKE_PROFILES,
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0
               SSL_R_SRTP_COULD_NOT_ALLOCATE_PROFILES);
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0
        return 1;
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0
    }
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0
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0
    do {
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0
        col = strchr(ptr, ':');
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0
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0
        if (!find_profile_by_name(ptr, &p, col ? (size_t)(col - ptr)
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0
                                               : strlen(ptr))) {
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0
            if (sk_SRTP_PROTECTION_PROFILE_find(profiles, p) >= 0) {
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0
                SSLerr(SSL_F_SSL_CTX_MAKE_PROFILES,
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0
                       SSL_R_BAD_SRTP_PROTECTION_PROFILE_LIST);
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0
                goto err;
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0
            }
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0
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0
            if (!sk_SRTP_PROTECTION_PROFILE_push(profiles, p)) {
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0
                SSLerr(SSL_F_SSL_CTX_MAKE_PROFILES,
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0
                       SSL_R_SRTP_COULD_NOT_ALLOCATE_PROFILES);
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0
                goto err;
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0
            }
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0
        } else {
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0
            SSLerr(SSL_F_SSL_CTX_MAKE_PROFILES,
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0
                   SSL_R_SRTP_UNKNOWN_PROTECTION_PROFILE);
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0
            goto err;
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0
        }
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0
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0
        if (col)
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0
            ptr = col + 1;
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0
    } while (col);
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0
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0
    sk_SRTP_PROTECTION_PROFILE_free(*out);
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0
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0
    *out = profiles;
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0
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    return 0;
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0
 err:
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0
    sk_SRTP_PROTECTION_PROFILE_free(profiles);
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0
    return 1;
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0
}
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int SSL_CTX_set_tlsext_use_srtp(SSL_CTX *ctx, const char *profiles)
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0
{
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0
    return ssl_ctx_make_profiles(profiles, &ctx->srtp_profiles);
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0
}
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int SSL_set_tlsext_use_srtp(SSL *s, const char *profiles)
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0
{
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0
    return ssl_ctx_make_profiles(profiles, &s->srtp_profiles);
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0
}
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STACK_OF(SRTP_PROTECTION_PROFILE) *SSL_get_srtp_profiles(SSL *s)
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0
{
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0
    if (s != NULL) {
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0
        if (s->srtp_profiles != NULL) {
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0
            return s->srtp_profiles;
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0
        } else if ((s->ctx != NULL) && (s->ctx->srtp_profiles != NULL)) {
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0
            return s->ctx->srtp_profiles;
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0
        }
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0
    }
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0
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0
    return NULL;
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0
}
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SRTP_PROTECTION_PROFILE *SSL_get_selected_srtp_profile(SSL *s)
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0
{
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0
    return s->srtp_profile;
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0
}
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#endif