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Dont send alert on invalid DTLS record type

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Do not send fatal alerts when receiving a record with an invalid header
while running DTLS as this is not compliant behaviour.
This commit is contained in:
Andres Amaya Garcia 2017-06-26 15:11:59 +01:00 committed by Simon Butcher
parent 72ea31b026
commit 2fad94b193
1 changed files with 7 additions and 2 deletions
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5
library/ssl_tls.c
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@ -3493,8 +3493,13 @@ static int ssl_parse_record_header( mbedtls_ssl_context *ssl )
ssl->in_msgtype != MBEDTLS_SSL_MSG_APPLICATION_DATA )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "unknown record type" ) );
#if defined(MBEDTLS_SSL_PROTO_DTLS)
if( ssl->conf->transport != MBEDTLS_SSL_TRANSPORT_DATAGRAM )
#endif /* MBEDTLS_SSL_PROTO_DTLS */
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_UNEXPECTED_MESSAGE );
return( MBEDTLS_ERR_SSL_INVALID_RECORD );
}