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/*
* broadcastKey802_1x.c
*
* Copyright(c) 1998 - 2009 Texas Instruments. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name Texas Instruments nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
/** \file broadcastKey802_1x.c
* \brief broadcast key 802.1x implementation
*
* \see broadcastKey802_1x.h
*/
/****************************************************************************
* *
* MODULE: 802.1x station broadcast key SM *
* PURPOSE: 802.1x station broadcast key SM implementation *
* *
****************************************************************************/
#define __FILE_ID__ FILE_ID_22
#include "osApi.h"
#include "report.h"
#include "rsnApi.h"
#include "keyDerive.h"
#include "broadcastKey802_1x.h"
#include "mainKeysSm.h"
TI_STATUS broadcastKey802_1x_start(struct _broadcastKey_t *pBroadcastKey);
TI_STATUS broadcastKey802_1x_stop(struct _broadcastKey_t *pBroadcastKey);
TI_STATUS broadcastKey802_1x_recvSuccess(struct _broadcastKey_t *pBroadcastKey,
encodedKeyMaterial_t *pEncodedKeyMaterial);
TI_STATUS broadcastKey802_1x_recvFailure(struct _broadcastKey_t *pBroadcastKey);
TI_STATUS broadcastKey802_1x_distribute(struct _broadcastKey_t *pBroadcastKey);
TI_STATUS broadcastKey802_1x_redistribute(struct _broadcastKey_t *pBroadcastKey);
TI_STATUS broadcastKey802_1x_event(struct _broadcastKey_t *pBroadcastKey,
TI_UINT8 event,
void *pData);
/**
*
* Function - Init KEY Parser module.
*
* \b Description:
*
* Called by RSN Manager.
* Registers the function 'rsn_BroadcastKeyRecv()' at the distributor to receive KEY frames upon receiving a KEY_RECV event.
*
* \b ARGS:
*
*
* \b RETURNS:
*
* TI_STATUS - 0 on success, any other value on failure.
*
*/
TI_STATUS broadcastKey802_1x_config(struct _broadcastKey_t *pBroadcastKey)
{
TI_STATUS status = TI_NOK;
/** Station broadcast key State Machine matrix */
fsm_actionCell_t broadcastKey802_1x_matrix[BCAST_KEY_802_1X_NUM_STATES][BCAST_KEY_802_1X_NUM_EVENTS] =
{
/* next state and actions for IDLE state */
{ {BCAST_KEY_802_1X_STATE_START, (fsm_Action_t)broadcastKeySmNop},
{BCAST_KEY_802_1X_STATE_IDLE, (fsm_Action_t)broadcastKeySmNop},
{BCAST_KEY_802_1X_STATE_IDLE, (fsm_Action_t)broadcastKeySmNop},
{BCAST_KEY_802_1X_STATE_IDLE, (fsm_Action_t)broadcastKeySmUnexpected}
},
/* next state and actions for START state */
{ {BCAST_KEY_802_1X_STATE_START, (fsm_Action_t)broadcastKeySmUnexpected},
{BCAST_KEY_802_1X_STATE_IDLE, (fsm_Action_t)broadcastKeySmNop},
{BCAST_KEY_802_1X_STATE_COMPLETE, (fsm_Action_t)broadcastKey802_1x_distribute},
{BCAST_KEY_802_1X_STATE_START, (fsm_Action_t)broadcastKeySmNop}
},
/* next state and actions for COMPLETE state */
{ {BCAST_KEY_802_1X_STATE_COMPLETE, (fsm_Action_t)broadcastKeySmUnexpected},
{BCAST_KEY_802_1X_STATE_IDLE, (fsm_Action_t)broadcastKeySmNop},
{BCAST_KEY_802_1X_STATE_COMPLETE, (fsm_Action_t)broadcastKey802_1x_distribute},
{BCAST_KEY_802_1X_STATE_COMPLETE, (fsm_Action_t)broadcastKeySmUnexpected}
}
};
pBroadcastKey->start = broadcastKey802_1x_start;
pBroadcastKey->stop = broadcastKey802_1x_stop;
pBroadcastKey->recvFailure = broadcastKey802_1x_recvFailure;
pBroadcastKey->recvSuccess = broadcastKey802_1x_recvSuccess;
pBroadcastKey->currentState = BCAST_KEY_802_1X_STATE_IDLE;
status = fsm_Config(pBroadcastKey->pBcastKeySm,
&broadcastKey802_1x_matrix[0][0],
BCAST_KEY_802_1X_NUM_STATES,
BCAST_KEY_802_1X_NUM_EVENTS,
NULL, pBroadcastKey->hOs);
return status;
}
/**
*
* broadcastKey802_1x_event
*
* \b Description:
*
* broadcast key state machine transition function
*
* \b ARGS:
*
* I/O - currentState - current state in the state machine\n
* I - event - specific event for the state machine\n
* I - pData - Data for state machine action function\n
*
* \b RETURNS:
*
* TI_OK on success, TI_NOK otherwise.
*
* \sa
*/
TI_STATUS broadcastKey802_1x_event(struct _broadcastKey_t *pBroadcastKey, TI_UINT8 event, void *pData)
{
TI_STATUS status;
TI_UINT8 nextState;
status = fsm_GetNextState(pBroadcastKey->pBcastKeySm, pBroadcastKey->currentState, event, &nextState);
if (status != TI_OK)
{
TRACE0(pBroadcastKey->hReport, REPORT_SEVERITY_ERROR, "BROADCAST_KEY_SM: ERROR: failed getting next state\n");
return TI_NOK;
}
TRACE3(pBroadcastKey->hReport, REPORT_SEVERITY_INFORMATION, "STATION_BROADCAST_KEY_SM: <currentState = %d, event = %d> --> nextState = %d\n", pBroadcastKey->currentState, event, nextState);
status = fsm_Event(pBroadcastKey->pBcastKeySm, &pBroadcastKey->currentState, event, pData);
return status;
}
/**
*
* broadcastKey802_1x_start
*
* \b Description:
*
* START event handler
*
* \b ARGS:
*
* I - pCtrlB - station control block \n
*
* \b RETURNS:
*
* TI_OK on success, TI_NOK otherwise.
*
* \sa broadcastKey802_1x_stop()
*/
TI_STATUS broadcastKey802_1x_start(struct _broadcastKey_t *pBroadcastKey)
{
TI_STATUS status;
status = broadcastKey802_1x_event(pBroadcastKey, BCAST_KEY_802_1X_EVENT_START, pBroadcastKey);
return status;
}
/**
*
* broadcastKey802_1x_stop
*
* \b Description:
*
* START event handler
*
* \b ARGS:
*
* I - pCtrlB - station control block \n
*
* \b RETURNS:
*
* TI_OK on success, TI_NOK otherwise.
*
* \sa broadcastKey802_1x_start()
*/
TI_STATUS broadcastKey802_1x_stop(struct _broadcastKey_t *pBroadcastKey)
{
TI_STATUS status;
status = broadcastKey802_1x_event(pBroadcastKey, BCAST_KEY_802_1X_EVENT_STOP, pBroadcastKey);
return status;
}
/**
*
* broadcastKey802_1x_recvSuccess
*
* \b Description:
*
* SUCCESS event handler
*
* \b ARGS:
*
* I - pCtrlB - station control block \n
* I - pEncodedKeyMaterial - Encoded key material \n
*
* \b RETURNS:
*
* TI_OK on success, TI_NOK otherwise.
*
*/
TI_STATUS broadcastKey802_1x_recvSuccess(struct _broadcastKey_t *pBroadcastKey, encodedKeyMaterial_t *pEncodedKeyMaterial)
{
TI_STATUS status;
pBroadcastKey->data.pEncodedKeyMaterial = pEncodedKeyMaterial;
status = broadcastKey802_1x_event(pBroadcastKey, BCAST_KEY_802_1X_EVENT_SUCCESS, pBroadcastKey);
return status;
}
/**
*
* broadcastKey802_1x_recvFailure
*
* \b Description:
*
* FAILURE event handler
*
* \b ARGS:
*
* I - pCtrlB - station control block \n
*
* \b RETURNS:
*
* TI_OK on success, TI_NOK otherwise.
*
*/
TI_STATUS broadcastKey802_1x_recvFailure(struct _broadcastKey_t *pBroadcastKey)
{
TI_STATUS status;
status = broadcastKey802_1x_event(pBroadcastKey, BCAST_KEY_802_1X_EVENT_FAILURE, pBroadcastKey);
return status;
}
/**
*
* broadcastKey802_1x_distribute
*
* \b Description:
*
* Distribute broadcast key material to the driver and report the main key SM on broadcast complete.
*
* \b ARGS:
*
* I - pData - Encoded key material \n
*
* \b RETURNS:
*
* TI_OK on success, TI_NOK otherwise.
*/
TI_STATUS broadcastKey802_1x_distribute(struct _broadcastKey_t *pBroadcastKey)
{
TI_STATUS status=TI_NOK;
if (pBroadcastKey->pKeyDerive->derive!=NULL)
{
status = pBroadcastKey->pKeyDerive->derive(pBroadcastKey->pKeyDerive,
pBroadcastKey->data.pEncodedKeyMaterial);
}
if (status != TI_OK)
{
return TI_NOK;
}
if (pBroadcastKey->pParent->reportBcastStatus!=NULL)
{
status = pBroadcastKey->pParent->reportBcastStatus(pBroadcastKey->pParent, TI_OK);
}
mainKeys_reAuth(pBroadcastKey->pParent);
return status;
}
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