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      1 /*
      2  * keyDerive.c
      3  *
      4  * Copyright(c) 1998 - 2009 Texas Instruments. All rights reserved.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  *
     11  *  * Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  *  * Redistributions in binary form must reproduce the above copyright
     14  *    notice, this list of conditions and the following disclaimer in
     15  *    the documentation and/or other materials provided with the
     16  *    distribution.
     17  *  * Neither the name Texas Instruments nor the names of its
     18  *    contributors may be used to endorse or promote products derived
     19  *    from this software without specific prior written permission.
     20  *
     21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     22  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     23  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     24  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     25  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     26  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     27  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     28  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     29  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     30  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     31  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     32  */
     33 
     34 /** \file keyDeriveSM.c
     35  * \brief station unicast key SM implementation
     36  *
     37  * \see keyDeriveSM.h
     38 */
     39 
     40 /****************************************************************************
     41  *                                                                          *
     42  *   MODULE:	station unicast key SM		                                *
     43  *   PURPOSE:   station unicast key SM implementation						*
     44  *                                                                          *
     45  ****************************************************************************/
     46 
     47 #define __FILE_ID__  FILE_ID_28
     48 #include "osApi.h"
     49 #include "report.h"
     50 #include "rsnApi.h"
     51 
     52 #include "keyDerive.h"
     53 #include "keyDeriveWep.h"
     54 #include "keyDeriveTkip.h"
     55 #include "keyDeriveAes.h"
     56 #ifdef XCC_MODULE_INCLUDED
     57 #include "keyDeriveCkip.h"
     58 #endif
     59 
     60 /**
     61 *
     62 * Function  - Init KEY Parser module.
     63 *
     64 * \b Description:
     65 *
     66 * Called by RSN Manager.
     67 * Registers the function 'rsn_KeyDeriveRecv()' at the distributor to receive KEY frames upon receiving a KEY_RECV event.
     68 *
     69 * \b ARGS:
     70 *
     71 *
     72 * \b RETURNS:
     73 *
     74 *  TI_STATUS - 0 on success, any other value on failure.
     75 *
     76 */
     77 
     78 keyDerive_t* keyDerive_create(TI_HANDLE hOs)
     79 {
     80 	keyDerive_t 		*pKeyDerive;
     81 
     82 	/* allocate key parser context memory */
     83 	pKeyDerive = (keyDerive_t*)os_memoryAlloc(hOs, sizeof(keyDerive_t));
     84 	if (pKeyDerive == NULL)
     85 	{
     86 		return NULL;
     87 	}
     88 
     89 	os_memoryZero(hOs, pKeyDerive, sizeof(keyDerive_t));
     90 
     91 	pKeyDerive->hOs = hOs;
     92 
     93 	return pKeyDerive;
     94 }
     95 
     96 /**
     97 *
     98 * Function  - Init KEY Parser module.
     99 *
    100 * \b Description:
    101 *
    102 * Called by RSN Manager.
    103 * Registers the function 'rsn_KeyDeriveRecv()' at the distributor to receive KEY frames upon receiving a KEY_RECV event.
    104 *
    105 * \b ARGS:
    106 *
    107 *
    108 * \b RETURNS:
    109 *
    110 *  TI_STATUS - 0 on success, any other value on failure.
    111 *
    112 */
    113 
    114 TI_STATUS keyDerive_unload(struct _keyDerive_t *pKeyDerive)
    115 {
    116 	/* free key parser context memory */
    117 	os_memoryFree(pKeyDerive->hOs, pKeyDerive, sizeof(keyDerive_t));
    118 
    119 	return TI_OK;
    120 }
    121 
    122 /**
    123 *
    124 * Function  - Init KEY Parser module.
    125 *
    126 * \b Description:
    127 *
    128 * Called by RSN Manager.
    129 * Registers the function 'rsn_KeyDeriveRecv()' at the distributor to receive KEY frames upon receiving a KEY_RECV event.
    130 *
    131 * \b ARGS:
    132 *
    133 *
    134 * \b RETURNS:
    135 *
    136 *  TI_STATUS - 0 on success, any other value on failure.
    137 *
    138 */
    139 
    140 TI_STATUS keyDerive_config(struct _keyDerive_t *pKeyDerive,
    141 						ECipherSuite cipher,
    142 						struct _mainKeys_t *pMainKeys,
    143 						TI_HANDLE hReport,
    144 						TI_HANDLE hOs)
    145 {
    146 
    147 	TI_STATUS		status = TI_NOK;
    148 
    149 	pKeyDerive->hReport = hReport;
    150 	pKeyDerive->hOs = hOs;
    151 	pKeyDerive->pMainKeys = pMainKeys;
    152 
    153     switch (cipher)
    154 	{
    155     case TWD_CIPHER_NONE:
    156 		status = keyDeriveNone_config(pKeyDerive);
    157         break;
    158 	case TWD_CIPHER_WEP:
    159     case TWD_CIPHER_WEP104:
    160 		status = keyDeriveWep_config(pKeyDerive);
    161 		break;
    162 	case TWD_CIPHER_TKIP:
    163 		status = keyDeriveTkip_config(pKeyDerive);
    164 		break;
    165 #ifdef XCC_MODULE_INCLUDED
    166 	case TWD_CIPHER_CKIP:
    167   	status = keyDeriveCkip_config(pKeyDerive);
    168 		break;
    169 #endif
    170 
    171 	case TWD_CIPHER_AES_CCMP:
    172 		status = keyDeriveAes_config(pKeyDerive);
    173 		break;
    174 	default:
    175 		return TI_NOK;
    176 	}
    177 
    178 	return status;
    179 }
    180 
    181 
    182 
    183