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set protection profile API gets a MBEDTLS_TLS_SRTP_UNSET terminated list

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Signed-off-by: Johan Pascal <johan.pascal@belledonne-communications.com>
This commit is contained in:
Johan Pascal
2020-09-22 13:04:45 +02:00
parent 43f9490a52
commit 253d0263a6
4 changed files with 34 additions and 45 deletions
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36
library/ssl_tls.c
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@@ -4735,38 +4735,36 @@ int mbedtls_ssl_dtls_srtp_set_mki_value( mbedtls_ssl_context *ssl,
}
int mbedtls_ssl_conf_dtls_srtp_protection_profiles( mbedtls_ssl_config *conf,
const mbedtls_ssl_srtp_profile *profiles,
size_t profiles_number )
const mbedtls_ssl_srtp_profile *profiles )
{
size_t i;
/*
* Check input validity : must be a list of profiles from enumeration.
* Maximum length is 4 as only 4 protection profiles are defined.
*/
if( profiles_number > 4 )
{
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
}
const mbedtls_ssl_srtp_profile *p;
size_t list_size = 0;
for( i=0; i < profiles_number; i++ )
/* check the profiles list: all entry must be valid,
* its size cannot be more than the total number of supported profiles, currently 4 */
for( p = profiles; *p != MBEDTLS_TLS_SRTP_UNSET && list_size < 5; p++ )
{
switch( profiles[i] )
switch( *p )
{
case MBEDTLS_TLS_SRTP_AES128_CM_HMAC_SHA1_80:
case MBEDTLS_TLS_SRTP_AES128_CM_HMAC_SHA1_32:
case MBEDTLS_TLS_SRTP_NULL_HMAC_SHA1_80:
case MBEDTLS_TLS_SRTP_NULL_HMAC_SHA1_32:
list_size++;
break;
default:
conf->dtls_srtp_profile_list = NULL;
conf->dtls_srtp_profile_list_len = 0;
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
default: /* unsupported value, stop parsing and set the size to an error value */
list_size = 5;
}
}
if ( list_size > 4 ) {
conf->dtls_srtp_profile_list = NULL;
conf->dtls_srtp_profile_list_len = 0;
return( MBEDTLS_ERR_SSL_BAD_INPUT_DATA );
}
conf->dtls_srtp_profile_list = profiles;
conf->dtls_srtp_profile_list_len = profiles_number;
conf->dtls_srtp_profile_list_len = list_size;
return( 0 );
}