Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 1 | /* |
Kiet Lam | aa8e15a | 2014-02-11 23:30:06 -0800 | [diff] [blame^] | 2 | * Copyright (c) 2012-2013 Qualcomm Atheros, Inc. |
| 3 | * All Rights Reserved. |
| 4 | * Qualcomm Atheros Confidential and Proprietary. |
Gopichand Nakkala | 92f07d8 | 2013-01-08 21:16:34 -0800 | [diff] [blame] | 5 | */ |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 6 | /**============================================================================= |
| 7 | |
| 8 | vos_list.c |
| 9 | |
| 10 | \brief |
| 11 | |
| 12 | Description... |
| 13 | |
| 14 | |
| 15 | Copyright 2008 (c) Qualcomm, Incorporated. |
| 16 | All Rights Reserved. |
| 17 | Qualcomm Confidential and Proprietary. |
| 18 | |
| 19 | ============================================================================== */ |
| 20 | /* $HEADER$ */ |
| 21 | #include "bapRsnTxRx.h" |
| 22 | #include "bapRsn8021xFsm.h" |
| 23 | #include "bapInternal.h" |
| 24 | #include "vos_trace.h" |
| 25 | #include "wlan_qct_tl.h" |
| 26 | #include "vos_memory.h" |
| 27 | |
| 28 | |
Madan Mohan Koyyalamudi | dfd6aa8 | 2012-10-18 20:18:43 -0700 | [diff] [blame] | 29 | static pnfTxCompleteHandler bapRsnFsmTxCmpHandler; |
| 30 | static pnfRxFrameHandler bapRsnFsmRxFrameHandler; |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 31 | |
| 32 | extern int gReadToSetKey; |
| 33 | |
| 34 | |
| 35 | VOS_STATUS bapRsnRegisterTxRxCallbacks( pnfTxCompleteHandler pfnTxCom, pnfRxFrameHandler pnfRxFrame ) |
| 36 | { |
| 37 | if( bapRsnFsmTxCmpHandler || bapRsnFsmRxFrameHandler ) |
| 38 | { |
| 39 | return VOS_STATUS_E_ALREADY; |
| 40 | } |
| 41 | |
| 42 | bapRsnFsmTxCmpHandler = pfnTxCom; |
| 43 | bapRsnFsmRxFrameHandler = pnfRxFrame; |
| 44 | |
| 45 | return ( VOS_STATUS_SUCCESS ); |
| 46 | } |
| 47 | |
| 48 | void bapRsnClearTxRxCallbacks(void) |
| 49 | { |
| 50 | bapRsnFsmTxCmpHandler = NULL; |
| 51 | bapRsnFsmRxFrameHandler = NULL; |
| 52 | } |
| 53 | |
| 54 | |
| 55 | //To reserve a vos_packet for Tx eapol frame |
| 56 | //If success, pPacket is the packet and pData points to the head. |
| 57 | static VOS_STATUS bapRsnAcquirePacket( vos_pkt_t **ppPacket, v_U8_t **ppData, v_U16_t size ) |
| 58 | { |
| 59 | VOS_STATUS status; |
| 60 | vos_pkt_t *pPacket; |
| 61 | |
| 62 | status = vos_pkt_get_packet( &pPacket, VOS_PKT_TYPE_TX_802_11_MGMT, size, 1, |
| 63 | VOS_TRUE, NULL, NULL ); |
| 64 | if( VOS_IS_STATUS_SUCCESS( status ) ) |
| 65 | { |
| 66 | status = vos_pkt_reserve_head( pPacket, (v_VOID_t **)ppData, size ); |
| 67 | if( !VOS_IS_STATUS_SUCCESS( status ) ) |
| 68 | { |
| 69 | VOS_TRACE( VOS_MODULE_ID_BAP, VOS_TRACE_LEVEL_ERROR, |
| 70 | "bapRsnAcquirePacket failed to reserve size = %d\n", size ); |
| 71 | vos_pkt_return_packet( pPacket ); |
| 72 | } |
| 73 | else |
| 74 | { |
| 75 | *ppPacket = pPacket; |
| 76 | } |
| 77 | } |
| 78 | else |
| 79 | { |
| 80 | VOS_TRACE( VOS_MODULE_ID_BAP, VOS_TRACE_LEVEL_ERROR, |
| 81 | "bapRsnAcquirePacket failed to get vos_pkt\n" ); |
| 82 | } |
| 83 | |
| 84 | return ( status ); |
| 85 | } |
| 86 | |
| 87 | |
| 88 | static VOS_STATUS bapRsnTxCompleteCallback( v_PVOID_t pvosGCtx, vos_pkt_t *pPacket, VOS_STATUS retStatus ) |
| 89 | { |
| 90 | int retVal; |
| 91 | ptBtampContext btampContext; // use btampContext value |
| 92 | tCsrRoamSetKey setKeyInfo; |
| 93 | tSuppRsnFsm *fsm; |
| 94 | |
| 95 | if (NULL == pvosGCtx) |
| 96 | { |
| 97 | VOS_TRACE( VOS_MODULE_ID_BAP, VOS_TRACE_LEVEL_ERROR, |
Madan Mohan Koyyalamudi | 87054ba | 2012-11-02 13:24:12 -0700 | [diff] [blame] | 98 | "pvosGCtx is NULL in %s", __func__); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 99 | |
| 100 | return VOS_STATUS_E_FAULT; |
| 101 | } |
| 102 | |
| 103 | btampContext = VOS_GET_BAP_CB(pvosGCtx); |
| 104 | if (NULL == btampContext) |
| 105 | { |
| 106 | VOS_TRACE( VOS_MODULE_ID_BAP, VOS_TRACE_LEVEL_ERROR, |
Madan Mohan Koyyalamudi | 87054ba | 2012-11-02 13:24:12 -0700 | [diff] [blame] | 107 | "btampContext is NULL in %s", __func__); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 108 | |
| 109 | return VOS_STATUS_E_FAULT; |
| 110 | } |
| 111 | |
| 112 | fsm = &btampContext->uFsm.suppFsm; |
| 113 | if (NULL == fsm) |
| 114 | { |
| 115 | VOS_TRACE( VOS_MODULE_ID_BAP, VOS_TRACE_LEVEL_ERROR, |
Madan Mohan Koyyalamudi | 87054ba | 2012-11-02 13:24:12 -0700 | [diff] [blame] | 116 | "fsm is NULL in %s", __func__); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 117 | |
| 118 | return VOS_STATUS_E_FAULT; |
| 119 | } |
| 120 | |
| 121 | //If we get a disconect from upper layer before getting the pkt from TL the |
| 122 | //bapRsnFsmTxCmpHandler could be NULL |
| 123 | //VOS_ASSERT( bapRsnFsmTxCmpHandler ); |
| 124 | |
| 125 | if( bapRsnFsmTxCmpHandler ) |
| 126 | { |
| 127 | //Change the state |
| 128 | //Call auth or supp FSM's handler |
| 129 | bapRsnFsmTxCmpHandler( pvosGCtx, pPacket, retStatus ); |
| 130 | } |
| 131 | else |
| 132 | { |
| 133 | vos_pkt_return_packet( pPacket ); |
| 134 | return (VOS_STATUS_SUCCESS ); |
| 135 | } |
| 136 | |
| 137 | //fsm->suppCtx->ptk contains the 3 16-bytes keys. We need the last one. |
| 138 | /* |
| 139 | We will move the Set key to EAPOL Completion handler. We found a race condition betweem |
| 140 | sending EAPOL frame and setting Key */ |
| 141 | if (BAP_SET_RSN_KEY == gReadToSetKey) { |
| 142 | vos_mem_zero( &setKeyInfo, sizeof( tCsrRoamSetKey ) ); |
| 143 | setKeyInfo.encType = eCSR_ENCRYPT_TYPE_AES; |
| 144 | setKeyInfo.keyDirection = eSIR_TX_RX; |
| 145 | vos_mem_copy( setKeyInfo.peerMac, fsm->suppCtx->authMac, sizeof( tAniMacAddr ) ); |
| 146 | setKeyInfo.paeRole = 0; //this is a supplicant |
| 147 | setKeyInfo.keyId = 0; //always |
| 148 | setKeyInfo.keyLength = CSR_AES_KEY_LEN; |
| 149 | vos_mem_copy( setKeyInfo.Key, (v_U8_t *)fsm->suppCtx->ptk + (2 * CSR_AES_KEY_LEN ), CSR_AES_KEY_LEN ); |
| 150 | |
| 151 | if( !VOS_IS_STATUS_SUCCESS( bapSetKey( fsm->ctx->pvosGCtx, &setKeyInfo ) ) ) |
| 152 | { |
| 153 | VOS_TRACE( VOS_MODULE_ID_BAP, VOS_TRACE_LEVEL_ERROR, " Supp: gotoStateStaKeySet fail to set key\n" ); |
| 154 | retVal = ANI_ERROR; |
| 155 | } |
| 156 | gReadToSetKey = BAP_RESET_RSN_KEY; |
| 157 | } |
| 158 | |
| 159 | return (VOS_STATUS_SUCCESS ); |
| 160 | } |
| 161 | |
| 162 | |
| 163 | static VOS_STATUS bapRsnTxFrame( v_PVOID_t pvosGCtx, vos_pkt_t *pPacket ) |
| 164 | { |
| 165 | VOS_STATUS status; |
| 166 | WLANTL_MetaInfoType metaInfo; |
| 167 | |
| 168 | vos_mem_zero( &metaInfo, sizeof( WLANTL_MetaInfoType ) ); |
| 169 | metaInfo.ucIsEapol = 1; //only send eapol frame |
| 170 | status = WLANTL_TxBAPFrm( pvosGCtx, pPacket, &metaInfo, bapRsnTxCompleteCallback ); |
| 171 | if( !VOS_IS_STATUS_SUCCESS( status ) ) |
| 172 | { |
| 173 | VOS_TRACE( VOS_MODULE_ID_BAP, VOS_TRACE_LEVEL_ERROR, |
| 174 | "bapRsnTxFrame failed to send vos_pkt status = %d\n", status ); |
| 175 | } |
| 176 | |
| 177 | return ( status ); |
| 178 | } |
| 179 | |
| 180 | |
| 181 | /* |
| 182 | \brief bapRsnSendEapolFrame |
| 183 | To push an eapol frame to TL. |
| 184 | |
| 185 | \param pAniPkt - a ready eapol frame that is prepared in tAniPacket format |
| 186 | */ |
| 187 | VOS_STATUS bapRsnSendEapolFrame( v_PVOID_t pvosGCtx, tAniPacket *pAniPkt ) |
| 188 | { |
| 189 | VOS_STATUS status; |
Leo Chang | ec114a0 | 2013-05-24 17:19:13 -0700 | [diff] [blame] | 190 | vos_pkt_t *pPacket = NULL; |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 191 | v_U8_t *pData, *pSrc; |
| 192 | int pktLen = aniAsfPacketGetBytes( pAniPkt, &pSrc ); |
| 193 | |
| 194 | if( pktLen <= 0 ) |
| 195 | { |
| 196 | return VOS_STATUS_E_EMPTY; |
| 197 | } |
| 198 | status = bapRsnAcquirePacket( &pPacket, &pData, pktLen ); |
Leo Chang | ec114a0 | 2013-05-24 17:19:13 -0700 | [diff] [blame] | 199 | if( VOS_IS_STATUS_SUCCESS( status ) && ( NULL != pPacket )) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 200 | { |
| 201 | vos_mem_copy( pData, pSrc, pktLen ); |
| 202 | //Send the packet, need to check whether we have an outstanding packet first. |
| 203 | status = bapRsnTxFrame( pvosGCtx, pPacket ); |
| 204 | if( !VOS_IS_STATUS_SUCCESS( status ) ) |
| 205 | { |
| 206 | vos_pkt_return_packet( pPacket ); |
| 207 | } |
| 208 | } |
| 209 | |
| 210 | return ( status ); |
| 211 | } |
| 212 | |
| 213 | |
| 214 | //TL call this function on Rx frames, should only be EAPOL frames |
| 215 | VOS_STATUS bapRsnRxCallback( v_PVOID_t pv, vos_pkt_t *pPacket ) |
| 216 | { |
| 217 | //Callback to auth or supp FSM's handler |
| 218 | VOS_ASSERT( bapRsnFsmRxFrameHandler ); |
| 219 | if( bapRsnFsmRxFrameHandler ) |
| 220 | { |
| 221 | bapRsnFsmRxFrameHandler( pv, pPacket ); |
| 222 | } |
| 223 | else |
| 224 | { |
| 225 | //done |
| 226 | vos_pkt_return_packet( pPacket ); |
| 227 | } |
| 228 | |
| 229 | return ( VOS_STATUS_SUCCESS ); |
| 230 | } |
| 231 | |
| 232 | |
| 233 | |
| 234 | VOS_STATUS bapRsnRegisterRxCallback( v_PVOID_t pvosGCtx ) |
| 235 | { |
| 236 | VOS_STATUS status; |
| 237 | |
| 238 | status = WLANTL_RegisterBAPClient( pvosGCtx, WLANBAP_RxCallback, WLANBAP_TLFlushCompCallback ); |
| 239 | if( !VOS_IS_STATUS_SUCCESS( status ) ) |
| 240 | { |
| 241 | if( VOS_STATUS_E_EXISTS != status ) |
| 242 | { |
| 243 | VOS_TRACE( VOS_MODULE_ID_BAP, VOS_TRACE_LEVEL_ERROR, |
| 244 | "bapRsnRegisterRxCallback failed with status = %d\n", status ); |
| 245 | } |
| 246 | else |
| 247 | { |
| 248 | //We consider it ok to register it multiple times because only BAP's RSN should call this |
| 249 | status = VOS_STATUS_SUCCESS; |
| 250 | } |
| 251 | } |
| 252 | |
| 253 | return ( status ); |
| 254 | } |
| 255 | |
| 256 | |