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Destroy PSA-based temporary opaque PSKs at the end of ssl_server2

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This commit is contained in:
Hanno Becker 2018-11-05 13:48:43 +00:00
parent 3f24ea976d
commit c43b6ea847
1 changed files with 35 additions and 2 deletions
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37
programs/ssl/ssl_server2.c
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@ -815,16 +815,30 @@ struct _psk_entry
/*
* Free a list of psk_entry's
*/
void psk_free( psk_entry *head )
int psk_free( psk_entry *head )
{
psk_entry *next;
while( head != NULL )
{
#if defined(MBEDTLS_USE_PSA_CRYPTO)
psa_status_t status;
psa_key_slot_t const slot = head->slot;
if( slot != 0 )
{
status = psa_destroy_key( slot );
if( status != PSA_SUCCESS )
return( status );
}
#endif /* MBEDTLS_USE_PSA_CRYPTO */
next = head->next;
mbedtls_free( head );
head = next;
}
return( 0 );
}
/*
@ -3332,12 +3346,31 @@ exit:
sni_free( sni_info );
#endif
#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED)
psk_free( psk_info );
if( ( ret = psk_free( psk_info ) ) != 0 )
mbedtls_printf( "Failed to list of opaque PSKs - error was %d\n", ret );
#endif
#if defined(MBEDTLS_DHM_C) && defined(MBEDTLS_FS_IO)
mbedtls_dhm_free( &dhm );
#endif
#if defined(MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED) && \
defined(MBEDTLS_USE_PSA_CRYPTO)
if( opt.psk_slot != 0 )
{
/* This is ok even if the slot hasn't been
* initialized (we might have jumed here
* immediately because of bad cmd line params,
* for example). */
status = psa_destroy_key( opt.psk_slot );
if( status != PSA_SUCCESS )
{
mbedtls_printf( "Failed to destroy key slot %u - error was %d",
(unsigned) opt.psk_slot, (int) status );
}
}
#endif /* MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED &&
MBEDTLS_USE_PSA_CRYPTO */
mbedtls_ssl_free( &ssl );
mbedtls_ssl_config_free( &conf );
mbedtls_ctr_drbg_free( &ctr_drbg );