C_CloseSession

CK_DECLARE_FUNCTION( CK_RV, C_CloseSession )( CK_SESSION_HANDLE hSession )
{
    P11Session_t * pxSession = prvSessionPointerFromHandle( hSession );
    CK_RV xResult = CKR_OK;
 
    /* coverity[misra_c_2012_rule_10_5_violation] */
    if( xP11Context.xIsInitialized == ( CK_BBOOL ) CK_FALSE )
    {
        xResult = CKR_CRYPTOKI_NOT_INITIALIZED;
        LogError( ( "Could not close a session. PKCS #11 must be initialized "
                    "before any operations." ) );
    }
    else if( pxSession == NULL )
    {
        xResult = CKR_SESSION_HANDLE_INVALID;
        LogError( ( "Could not close a session. The PKCS #11 session handle "
                    "was invalid." ) );
    }
    /* coverity[misra_c_2012_rule_10_5_violation] */
    else if( pxSession->xOpened == ( CK_BBOOL ) CK_TRUE )
    {
        /*
         * Tear down the session.
         */
        mbedtls_pk_free( &pxSession->xSignKey );
        pxSession->xSignKeyHandle = CK_INVALID_HANDLE;
        mbedtls_mutex_free( &pxSession->xSignMutex );
 
        /* Free the public key context if it exists. */
        mbedtls_pk_free( &pxSession->xVerifyKey );
        pxSession->xVerifyKeyHandle = CK_INVALID_HANDLE;
        mbedtls_mutex_free( &pxSession->xVerifyMutex );
 
        mbedtls_sha256_free( &pxSession->xSHA256Context );
 
        /* memset clears the open flag, so there is no need to set it to CK_FALSE */
        ( void ) memset( pxSession, 0, sizeof( P11Session_t ) );
        LogInfo( ( "Successfully closed PKCS #11 session." ) );
    }
    else
    {
        /* MISRA */
    }
 
    return xResult;
}