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Re-classify errors on missing peer CRT

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mbedtls_ssl_parse_certificate() will fail if a ciphersuite requires
a certificate, but none is provided. While it is sensible to double-
check this, failure should be reported as an internal error and not
as an unexpected message.
This commit is contained in:
Hanno Becker 2019-02-06 17:37:32 +00:00
parent 0329f75a93
commit 8273df8383
1 changed files with 6 additions and 8 deletions
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14
library/ssl_cli.c
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@ -2292,8 +2292,8 @@ static int ssl_write_encrypted_pms( mbedtls_ssl_context *ssl,
if( ssl->session_negotiate->peer_cert == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "certificate required" ) );
return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
/* Should never happen */
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
/*
@ -2404,8 +2404,8 @@ static int ssl_get_ecdh_params_from_cert( mbedtls_ssl_context *ssl )
if( ssl->session_negotiate->peer_cert == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "certificate required" ) );
return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
/* Should never happen */
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
if( ! mbedtls_pk_can_do( &ssl->session_negotiate->peer_cert->pk,
@ -2744,10 +2744,8 @@ start_processing:
if( ssl->session_negotiate->peer_cert == NULL )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "certificate required" ) );
mbedtls_ssl_send_alert_message( ssl, MBEDTLS_SSL_ALERT_LEVEL_FATAL,
MBEDTLS_SSL_ALERT_MSG_HANDSHAKE_FAILURE );
return( MBEDTLS_ERR_SSL_UNEXPECTED_MESSAGE );
/* Should never happen */
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
/*