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Change code base on comments

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Align the alert type in parse_server_hello
Remove MBEDTLS_SSL_COOKIE_C guard
Enable cookie for both DTLS and TLS1.3

Signed-off-by: XiaokangQian <xiaokang.qian@arm.com>
This commit is contained in:
XiaokangQian 2022-01-26 09:49:29 +00:00
parent aec1f3e913
commit 52da558103
2 changed files with 18 additions and 30 deletions
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10
library/ssl_misc.h
View File

@ -692,14 +692,16 @@ struct mbedtls_ssl_handshake_params
} buffering;
#if defined(MBEDTLS_SSL_PROTO_DTLS)
unsigned int out_msg_seq; /*!< Outgoing handshake sequence number */
unsigned int in_msg_seq; /*!< Incoming handshake sequence number */
#if defined(MBEDTLS_SSL_PROTO_DTLS) || defined(MBEDTLS_SSL_PROTO_TLS1_3)
unsigned char *verify_cookie; /*!< Cli: HelloVerifyRequest cookie
Srv: unused */
unsigned char verify_cookie_len; /*!< Cli: cookie length
Srv: flag for sending a cookie */
#endif /* MBEDTLS_SSL_PROTO_DTLS || MBEDTLS_SSL_PROTO_TLS1_3 */
#if defined(MBEDTLS_SSL_PROTO_DTLS)
unsigned int out_msg_seq; /*!< Outgoing handshake sequence number */
unsigned int in_msg_seq; /*!< Incoming handshake sequence number */
uint32_t retransmit_timeout; /*!< Current value of timeout */
mbedtls_ssl_flight_item *flight; /*!< Current outgoing flight */

38
library/ssl_tls13_client.c
View File

@ -526,7 +526,6 @@ static int ssl_tls13_parse_key_share_ext( mbedtls_ssl_context *ssl,
#endif /* MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED */
#if defined(MBEDTLS_SSL_COOKIE_C)
/*
* ssl_tls13_parse_cookie_ext()
* Parse cookie extension in Hello Retry Request
@ -559,7 +558,6 @@ static int ssl_tls13_parse_cookie_ext( mbedtls_ssl_context *ssl,
MBEDTLS_SSL_CHK_BUF_READ_PTR( p, end, cookie_len );
MBEDTLS_SSL_DEBUG_BUF( 3, "cookie extension", p, cookie_len );
#if defined(MBEDTLS_SSL_PROTO_DTLS)
mbedtls_free( handshake->verify_cookie );
handshake->verify_cookie = mbedtls_calloc( 1, cookie_len );
if( handshake->verify_cookie == NULL )
@ -572,11 +570,9 @@ static int ssl_tls13_parse_cookie_ext( mbedtls_ssl_context *ssl,
memcpy( handshake->verify_cookie, p, cookie_len );
handshake->verify_cookie_len = (unsigned char) cookie_len;
#endif /* MBEDTLS_SSL_PROTO_DTLS */
return( 0 );
}
#endif /* MBEDTLS_SSL_COOKIE_C */
/* Write cipher_suites
* CipherSuite cipher_suites<2..2^16-2>;
@ -1121,7 +1117,7 @@ static int ssl_tls13_parse_server_hello( mbedtls_ssl_context *ssl,
*/
if( ssl_tls13_check_server_hello_session_id_echo( ssl, &p, end ) != 0 )
{
fatal_alert = MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER;
fatal_alert = MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER;
goto cleanup;
}
@ -1145,7 +1141,7 @@ static int ssl_tls13_parse_server_hello( mbedtls_ssl_context *ssl,
if( ciphersuite_info == NULL ||
ssl_tls13_cipher_suite_is_offered( ssl, cipher_suite ) == 0 )
{
fatal_alert = MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER;
fatal_alert = MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER;
}
/*
* If we received an HRR before and that the proposed selected
@ -1156,10 +1152,10 @@ static int ssl_tls13_parse_server_hello( mbedtls_ssl_context *ssl,
else if( ( !is_hrr ) && ( handshake->hello_retry_request_count > 0 ) &&
( cipher_suite != ssl->session_negotiate->ciphersuite ) )
{
fatal_alert = MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER;
fatal_alert = MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER;
}
if( fatal_alert == MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER )
if( fatal_alert == MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "invalid ciphersuite(%04x) parameter",
cipher_suite ) );
@ -1187,7 +1183,7 @@ static int ssl_tls13_parse_server_hello( mbedtls_ssl_context *ssl,
if( p[0] != 0 )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "bad legacy compression method" ) );
fatal_alert = MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER;
fatal_alert = MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER;
goto cleanup;
}
p++;
@ -1226,19 +1222,11 @@ static int ssl_tls13_parse_server_hello( mbedtls_ssl_context *ssl,
switch( extension_type )
{
#if defined(MBEDTLS_SSL_COOKIE_C)
case MBEDTLS_TLS_EXT_COOKIE:
/*
* Currently, we only support the cookies in DTLS 1.3.
*/
#if !defined(MBEDTLS_SSL_PROTO_DTLS)
fatal_alert = MBEDTLS_ERR_SSL_UNSUPPORTED_EXTENSION;
goto cleanup;
#else
if( !is_hrr )
{
fatal_alert = MBEDTLS_ERR_SSL_UNSUPPORTED_EXTENSION;
fatal_alert = MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_EXT;
goto cleanup;
}
@ -1251,9 +1239,7 @@ static int ssl_tls13_parse_server_hello( mbedtls_ssl_context *ssl,
ret );
goto cleanup;
}
#endif /* MBEDTLS_SSL_PROTO_DTLS */
break;
#endif /* MBEDTLS_SSL_COOKIE_C */
case MBEDTLS_TLS_EXT_SUPPORTED_VERSIONS:
supported_versions_ext_found = 1;
@ -1271,7 +1257,7 @@ static int ssl_tls13_parse_server_hello( mbedtls_ssl_context *ssl,
MBEDTLS_SSL_DEBUG_MSG( 3, ( "found pre_shared_key extension." ) );
MBEDTLS_SSL_DEBUG_MSG( 3, ( "pre_shared_key:Not supported yet" ) );
fatal_alert = MBEDTLS_ERR_SSL_UNSUPPORTED_EXTENSION;
fatal_alert = MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_EXT;
goto cleanup;
#if defined(MBEDTLS_KEY_EXCHANGE_WITH_CERT_ENABLED)
@ -1279,7 +1265,7 @@ static int ssl_tls13_parse_server_hello( mbedtls_ssl_context *ssl,
MBEDTLS_SSL_DEBUG_MSG( 3, ( "found key_shares extension" ) );
if( ! mbedtls_ssl_conf_tls13_some_ephemeral_enabled( ssl ) )
{
fatal_alert = MBEDTLS_ERR_SSL_UNSUPPORTED_EXTENSION;
fatal_alert = MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_EXT;
goto cleanup;
}
@ -1305,7 +1291,7 @@ static int ssl_tls13_parse_server_hello( mbedtls_ssl_context *ssl,
( "unknown extension found: %u ( ignoring )",
extension_type ) );
fatal_alert = MBEDTLS_ERR_SSL_UNSUPPORTED_EXTENSION;
fatal_alert = MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_EXT;
goto cleanup;
}
@ -1315,19 +1301,19 @@ static int ssl_tls13_parse_server_hello( mbedtls_ssl_context *ssl,
if( !supported_versions_ext_found )
{
MBEDTLS_SSL_DEBUG_MSG( 1, ( "supported_versions not found" ) );
fatal_alert = MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER;
fatal_alert = MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER;
goto cleanup;
}
cleanup:
if( fatal_alert & MBEDTLS_ERR_SSL_UNSUPPORTED_EXTENSION )
if( fatal_alert == MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_EXT )
{
MBEDTLS_SSL_PEND_FATAL_ALERT( MBEDTLS_SSL_ALERT_MSG_UNSUPPORTED_EXT,
MBEDTLS_ERR_SSL_UNSUPPORTED_EXTENSION );
ret = MBEDTLS_ERR_SSL_UNSUPPORTED_EXTENSION;
}
else if ( fatal_alert & MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER )
else if ( fatal_alert == MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER )
{
MBEDTLS_SSL_PEND_FATAL_ALERT( MBEDTLS_SSL_ALERT_MSG_ILLEGAL_PARAMETER,
MBEDTLS_ERR_SSL_ILLEGAL_PARAMETER );