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