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Don't send an alert when receiving a record of unknown ContentType

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We don't send alerts on other instances of ill-formed records,
so why should we do it here? If we want to keep it, the alerts
should rather be sent ssl_get_next_record().
This commit is contained in:
Hanno Becker 2019-07-10 16:53:30 +01:00
parent a8814794e9
commit d5c0f826e6
1 changed files with 0 additions and 9 deletions
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9
library/ssl_tls.c
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@ -4941,15 +4941,6 @@ static int ssl_parse_record_header( mbedtls_ssl_context *ssl )
if( ssl_check_record_type( ssl->in_msgtype ) )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "unknown record type" ) );
#if defined(MBEDTLS_SSL_PROTO_DTLS)
/* Silently ignore invalid DTLS records as recommended by RFC 6347
* Section 4.1.2.7 */
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 );
}