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tls: Use the same function in TLS 1.2 and 1.3 to check PSK conf

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Signed-off-by: Ronald Cron <ronald.cron@arm.com>
This commit is contained in:
Ronald Cron 2022-10-19 10:33:48 +02:00
parent 2a87e9bf83
commit d29e13eb1b
4 changed files with 18 additions and 38 deletions
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3
library/ssl_misc.h
View file

@ -1366,7 +1366,8 @@ MBEDTLS_CHECK_RETURN_CRITICAL
int mbedtls_ssl_psk_derive_premaster( mbedtls_ssl_context *ssl,
mbedtls_key_exchange_type_t key_ex );
#endif /* !MBEDTLS_USE_PSA_CRYPTO */
#if defined(MBEDTLS_SSL_CLI_C) && defined(MBEDTLS_SSL_PROTO_TLS1_2)
#if defined(MBEDTLS_SSL_CLI_C)
MBEDTLS_CHECK_RETURN_CRITICAL
int mbedtls_ssl_conf_has_static_psk( mbedtls_ssl_config const *conf );
#endif

19
library/ssl_tls.c
View file

@ -1600,15 +1600,20 @@ int mbedtls_ssl_set_hs_ecjpake_password( mbedtls_ssl_context *ssl,
#endif /* MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED */
#if defined(MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_conf_psk_is_configured( mbedtls_ssl_config const *conf )
int mbedtls_ssl_conf_has_static_psk( mbedtls_ssl_config const *conf )
{
if( conf->psk_identity == NULL ||
conf->psk_identity_len == 0 )
{
return( 0 );
}
#if defined(MBEDTLS_USE_PSA_CRYPTO)
if( !mbedtls_svc_key_id_is_null( conf->psk_opaque ) )
if( ! mbedtls_svc_key_id_is_null( conf->psk_opaque ) )
return( 1 );
#endif /* MBEDTLS_USE_PSA_CRYPTO */
if( conf->psk != NULL )
if( conf->psk != NULL && conf->psk_len != 0 )
return( 1 );
return( 0 );
@ -1678,7 +1683,7 @@ int mbedtls_ssl_conf_psk( mbedtls_ssl_config *conf,
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
/* We currently only support one PSK, raw or opaque. */
if( ssl_conf_psk_is_configured( conf ) )
if( mbedtls_ssl_conf_has_static_psk( conf ) )
return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
/* Check and set raw PSK */
@ -1796,7 +1801,7 @@ int mbedtls_ssl_conf_psk_opaque( mbedtls_ssl_config *conf,
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
/* We currently only support one PSK, raw or opaque. */
if( ssl_conf_psk_is_configured( conf ) )
if( mbedtls_ssl_conf_has_static_psk( conf ) )
return( MBEDTLS_ERR_SSL_FEATURE_UNAVAILABLE );
/* Check and set opaque PSK */

21
library/ssl_tls12_client.c
View file

@ -49,27 +49,6 @@
#include "hash_info.h"
#if defined(MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED)
int mbedtls_ssl_conf_has_static_psk( mbedtls_ssl_config const *conf )
{
if( conf->psk_identity == NULL ||
conf->psk_identity_len == 0 )
{
return( 0 );
}
#if defined(MBEDTLS_USE_PSA_CRYPTO)
if( ! mbedtls_svc_key_id_is_null( conf->psk_opaque ) )
return( 1 );
#endif /* MBEDTLS_USE_PSA_CRYPTO */
if( conf->psk != NULL && conf->psk_len != 0 )
return( 1 );
return( 0 );
}
#endif /* MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED */
#if defined(MBEDTLS_SSL_RENEGOTIATION)
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_write_renegotiation_ext( mbedtls_ssl_context *ssl,

13
library/ssl_tls13_client.c
View file

@ -728,11 +728,6 @@ static int ssl_tls13_ticket_get_psk( mbedtls_ssl_context *ssl,
}
#endif /* MBEDTLS_SSL_SESSION_TICKETS */
static int ssl_tls13_has_configured_psk( const mbedtls_ssl_config *conf )
{
return( conf->psk != NULL && conf->psk_identity != NULL );
}
MBEDTLS_CHECK_RETURN_CRITICAL
static int ssl_tls13_psk_get_identity( mbedtls_ssl_context *ssl,
psa_algorithm_t *hash_alg,
@ -740,7 +735,7 @@ static int ssl_tls13_psk_get_identity( mbedtls_ssl_context *ssl,
size_t *identity_len )
{
if( !ssl_tls13_has_configured_psk( ssl->conf ) )
if( !mbedtls_ssl_conf_has_static_psk( ssl->conf ) )
return( -1 );
*hash_alg = PSA_ALG_SHA_256;
@ -756,7 +751,7 @@ static int ssl_tls13_psk_get_psk( mbedtls_ssl_context *ssl,
size_t *psk_len )
{
if( !ssl_tls13_has_configured_psk( ssl->conf ) )
if( !mbedtls_ssl_conf_has_static_psk( ssl->conf ) )
return( -1 );
*hash_alg = PSA_ALG_SHA_256;
@ -775,7 +770,7 @@ static int ssl_tls13_get_configured_psk_count( mbedtls_ssl_context *ssl )
configured_psk_count++;
}
#endif
if( ssl_tls13_has_configured_psk( ssl->conf ) )
if( mbedtls_ssl_conf_has_static_psk( ssl->conf ) )
{
MBEDTLS_SSL_DEBUG_MSG( 3, ( "PSK is configured" ) );
configured_psk_count++;
@ -1094,7 +1089,7 @@ static int ssl_tls13_parse_server_pre_shared_key_ext( mbedtls_ssl_context *ssl,
}
else
#endif
if( ssl_tls13_has_configured_psk( ssl->conf ) )
if( mbedtls_ssl_conf_has_static_psk( ssl->conf ) )
{
ret = ssl_tls13_psk_get_psk( ssl, &hash_alg, &psk, &psk_len );
}