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Address comments in psk client review

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Refine cipher suite related code in psk
Refine get_psk_offered()

Change-Id: Ic3b0b5f86eb1e71f11bb499961aa8494284f1840
Signed-off-by: XiaokangQian <xiaokang.qian@arm.com>
This commit is contained in:
XiaokangQian 2022-07-14 07:54:01 +00:00 • committed by Ronald Cron
parent eb69aee6af
commit 008d2bf80b
4 changed files with 97 additions and 134 deletions
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38
library/ssl_tls13_generic.c
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@ -1505,4 +1505,42 @@ int mbedtls_ssl_tls13_generate_and_write_ecdh_key_exchange(
}
#endif /* MBEDTLS_ECDH_C */
#if defined(MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED)
/* Check if we have any PSK to offer, returns 0 if PSK is available.
* Assign the psk and ticket if pointers are present.
*/
int mbedtls_ssl_get_psk_to_offer(
const mbedtls_ssl_context *ssl,
int *psk_type,
const unsigned char **psk, size_t *psk_len,
const unsigned char **psk_identity, size_t *psk_identity_len )
{
int ptrs_present = 0;
if( psk != NULL && psk_len != NULL &&
psk_identity != NULL && psk_identity_len != NULL )
{
ptrs_present = 1;
}
/* Check if an external PSK has been configured. */
if( ssl->conf->psk != NULL )
{
if( ptrs_present )
{
*psk = ssl->conf->psk;
*psk_len = ssl->conf->psk_len;
*psk_identity = ssl->conf->psk_identity;
*psk_identity_len = ssl->conf->psk_identity_len;
}
if( psk_type != NULL )
*psk_type = MBEDTLS_SSL_TLS1_3_PSK_EXTERNAL;
return( 0 );
}
return( 1 );
}
#endif /* MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED */
#endif /* MBEDTLS_SSL_TLS_C && MBEDTLS_SSL_PROTO_TLS1_3 */