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Make use of macro and helper detecting whether CertRequest allowed

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This commit simplifies the client-side code for outgoing CertificateVerify
messages, and server-side code for outgoing CertificateRequest messages and
incoming CertificateVerify messages, through the use of the macro

   `MBEDTLS_KEY_EXCHANGE__CERT_REQ_ALLOWED__ENABLED`

indicating whether a ciphersuite allowing CertificateRequest messages
is enabled in the configuration, as well as the helper function

   `mbedtls_ssl_ciphersuite_cert_req_allowed()`

indicating whether a particular ciphersuite allows CertificateRequest
messages.

These were already used in the client-side code to simplify the
parsing functions for CertificateRequest messages.
This commit is contained in:
Hanno Becker
2019-02-07 12:32:43 +00:00
parent 28f2fcd08d
commit 77adddc9e9
2 changed files with 15 additions and 69 deletions
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28
library/ssl_cli.c
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@ -3456,12 +3456,7 @@ ecdh_calc_secret:
return( 0 );
}
#if !defined(MBEDTLS_KEY_EXCHANGE_RSA_ENABLED) && \
!defined(MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED) && \
!defined(MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED) && \
!defined(MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED) && \
!defined(MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED)&& \
!defined(MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED)
#if !defined(MBEDTLS_KEY_EXCHANGE__CERT_REQ_ALLOWED__ENABLED)
static int ssl_write_certificate_verify( mbedtls_ssl_context *ssl )
{
const mbedtls_ssl_ciphersuite_t *ciphersuite_info =
@ -3476,11 +3471,7 @@ static int ssl_write_certificate_verify( mbedtls_ssl_context *ssl )
return( ret );
}
if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE )
if( !mbedtls_ssl_ciphersuite_cert_req_allowed( ciphersuite_info ) )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write certificate verify" ) );
ssl->state++;
@ -3490,7 +3481,7 @@ static int ssl_write_certificate_verify( mbedtls_ssl_context *ssl )
MBEDTLS_SSL_DEBUG_MSG( 1, ( "should never happen" ) );
return( MBEDTLS_ERR_SSL_INTERNAL_ERROR );
}
#else
#else /* !MBEDTLS_KEY_EXCHANGE__CERT_REQ_ALLOWED__ENABLED */
static int ssl_write_certificate_verify( mbedtls_ssl_context *ssl )
{
int ret = MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE;
@ -3519,11 +3510,7 @@ static int ssl_write_certificate_verify( mbedtls_ssl_context *ssl )
return( ret );
}
if( ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_RSA_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECDHE_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_DHE_PSK ||
ciphersuite_info->key_exchange == MBEDTLS_KEY_EXCHANGE_ECJPAKE )
if( !mbedtls_ssl_ciphersuite_cert_req_allowed( ciphersuite_info ) )
{
MBEDTLS_SSL_DEBUG_MSG( 2, ( "<= skip write certificate verify" ) );
ssl->state++;
@ -3666,12 +3653,7 @@ sign:
return( ret );
}
#endif /* !MBEDTLS_KEY_EXCHANGE_RSA_ENABLED &&
!MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED &&
!MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED &&
!MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED &&
!MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED &&
!MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED */
#endif /* MBEDTLS_KEY_EXCHANGE__CERT_REQ_ALLOWED__ENABLED */
#if defined(MBEDTLS_SSL_SESSION_TICKETS)
static int ssl_parse_new_session_ticket( mbedtls_ssl_context *ssl )