Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 1 | /* |
Kiet Lam | 842dad0 | 2014-02-18 18:44:02 -0800 | [diff] [blame] | 2 | * Copyright (c) 2012-2014 The Linux Foundation. All rights reserved. |
| 3 | * |
| 4 | * Previously licensed under the ISC license by Qualcomm Atheros, Inc. |
| 5 | * |
| 6 | * |
| 7 | * Permission to use, copy, modify, and/or distribute this software for |
| 8 | * any purpose with or without fee is hereby granted, provided that the |
| 9 | * above copyright notice and this permission notice appear in all |
| 10 | * copies. |
| 11 | * |
| 12 | * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL |
| 13 | * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED |
| 14 | * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE |
| 15 | * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL |
| 16 | * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
| 17 | * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| 18 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| 19 | * PERFORMANCE OF THIS SOFTWARE. |
Kiet Lam | aa8e15a | 2014-02-11 23:30:06 -0800 | [diff] [blame] | 20 | */ |
Kiet Lam | 842dad0 | 2014-02-18 18:44:02 -0800 | [diff] [blame] | 21 | |
| 22 | /* |
| 23 | * This file was originally distributed by Qualcomm Atheros, Inc. |
| 24 | * under proprietary terms before Copyright ownership was assigned |
| 25 | * to the Linux Foundation. |
| 26 | */ |
| 27 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 28 | #include "palTypes.h" |
| 29 | #include "aniGlobal.h" |
| 30 | |
| 31 | #include "utilsApi.h" |
| 32 | #include "limTypes.h" |
| 33 | #include "limUtils.h" |
| 34 | #include "limAssocUtils.h" |
| 35 | #include "limSecurityUtils.h" |
| 36 | #include "limSerDesUtils.h" |
| 37 | #include "schApi.h" |
| 38 | #include "limSendMessages.h" |
| 39 | |
| 40 | |
| 41 | |
| 42 | /** |
| 43 | * limProcessDeauthFrame |
| 44 | * |
| 45 | *FUNCTION: |
| 46 | * This function is called by limProcessMessageQueue() upon |
| 47 | * Deauthentication frame reception. |
| 48 | * |
| 49 | *LOGIC: |
| 50 | * |
| 51 | *ASSUMPTIONS: |
| 52 | * |
| 53 | *NOTE: |
| 54 | * |
| 55 | * @param pMac - Pointer to Global MAC structure |
| 56 | * @param *pRxPacketInfo - A pointer to Buffer descriptor + associated PDUs |
| 57 | * @return None |
| 58 | */ |
| 59 | |
| 60 | void |
| 61 | limProcessDeauthFrame(tpAniSirGlobal pMac, tANI_U8 *pRxPacketInfo, tpPESession psessionEntry) |
| 62 | { |
| 63 | tANI_U8 *pBody; |
| 64 | tANI_U16 aid, reasonCode; |
| 65 | tpSirMacMgmtHdr pHdr; |
| 66 | tLimMlmAssocCnf mlmAssocCnf; |
| 67 | tLimMlmDeauthInd mlmDeauthInd; |
| 68 | tpDphHashNode pStaDs; |
Dhanashri Atre | af3e84d | 2013-01-18 18:03:06 -0800 | [diff] [blame] | 69 | tpPESession pRoamSessionEntry=NULL; |
| 70 | tANI_U8 roamSessionId; |
Chet Lanctot | 186b573 | 2013-03-18 10:26:30 -0700 | [diff] [blame] | 71 | #ifdef WLAN_FEATURE_11W |
| 72 | tANI_U32 frameLen; |
| 73 | #endif |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 74 | |
| 75 | |
| 76 | pHdr = WDA_GET_RX_MAC_HEADER(pRxPacketInfo); |
| 77 | |
| 78 | pBody = WDA_GET_RX_MPDU_DATA(pRxPacketInfo); |
| 79 | |
| 80 | |
| 81 | if ((eLIM_STA_ROLE == psessionEntry->limSystemRole) && (eLIM_SME_WT_DEAUTH_STATE == psessionEntry->limSmeState)) |
| 82 | { |
Madan Mohan Koyyalamudi | 69c94a1 | 2013-07-10 16:34:45 +0530 | [diff] [blame] | 83 | /*Every 15th deauth frame will be logged in kmsg*/ |
Venkata Prathyusha Kuntupalli | 22ba598 | 2013-04-24 13:09:20 -0700 | [diff] [blame] | 84 | if(!(pMac->lim.deauthMsgCnt & 0xF)) |
| 85 | { |
| 86 | PELOGE(limLog(pMac, LOGE, |
Madan Mohan Koyyalamudi | 69c94a1 | 2013-07-10 16:34:45 +0530 | [diff] [blame] | 87 | FL("received Deauth frame in DEAUTH_WT_STATE" |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 88 | "(already processing previously received DEAUTH frame).." |
| 89 | "Dropping this.. Deauth Failed %d"),++pMac->lim.deauthMsgCnt);) |
Venkata Prathyusha Kuntupalli | 22ba598 | 2013-04-24 13:09:20 -0700 | [diff] [blame] | 90 | } |
| 91 | else |
| 92 | { |
| 93 | pMac->lim.deauthMsgCnt++; |
| 94 | } |
Madan Mohan Koyyalamudi | 69c94a1 | 2013-07-10 16:34:45 +0530 | [diff] [blame] | 95 | return; |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 96 | } |
| 97 | |
| 98 | if (limIsGroupAddr(pHdr->sa)) |
| 99 | { |
| 100 | // Received Deauth frame from a BC/MC address |
| 101 | // Log error and ignore it |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 102 | PELOGE(limLog(pMac, LOGE, |
Kiran Kumar Lokere | 531ca70 | 2013-04-01 13:24:23 -0700 | [diff] [blame] | 103 | FL("received Deauth frame from a BC/MC address"));) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 104 | |
| 105 | return; |
| 106 | } |
| 107 | |
| 108 | if (limIsGroupAddr(pHdr->da) && !limIsAddrBC(pHdr->da)) |
| 109 | { |
| 110 | // Received Deauth frame for a MC address |
| 111 | // Log error and ignore it |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 112 | PELOGE(limLog(pMac, LOGE, |
Kiran Kumar Lokere | 531ca70 | 2013-04-01 13:24:23 -0700 | [diff] [blame] | 113 | FL("received Deauth frame for a MC address"));) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 114 | |
| 115 | return; |
| 116 | } |
Chet Lanctot | 186b573 | 2013-03-18 10:26:30 -0700 | [diff] [blame] | 117 | |
| 118 | #ifdef WLAN_FEATURE_11W |
| 119 | /* PMF: If this session is a PMF session, then ensure that this frame was protected */ |
| 120 | if(psessionEntry->limRmfEnabled && (WDA_GET_RX_DPU_FEEDBACK(pRxPacketInfo) & DPU_FEEDBACK_UNPROTECTED_ERROR)) |
| 121 | { |
| 122 | PELOGE(limLog(pMac, LOGE, FL("received an unprotected deauth from AP"));) |
| 123 | // If the frame received is unprotected, forward it to the supplicant to initiate |
| 124 | // an SA query |
| 125 | frameLen = WDA_GET_RX_PAYLOAD_LEN(pRxPacketInfo); |
| 126 | |
| 127 | //send the unprotected frame indication to SME |
| 128 | limSendSmeUnprotectedMgmtFrameInd( pMac, pHdr->fc.subType, |
| 129 | (tANI_U8*)pHdr, (frameLen + sizeof(tSirMacMgmtHdr)), |
| 130 | psessionEntry->smeSessionId, psessionEntry); |
| 131 | return; |
| 132 | } |
| 133 | #endif |
| 134 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 135 | // Get reasonCode from Deauthentication frame body |
Kiet Lam | aa8e15a | 2014-02-11 23:30:06 -0800 | [diff] [blame] | 136 | reasonCode = sirReadU16(pBody); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 137 | |
| 138 | PELOGE(limLog(pMac, LOGE, |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 139 | FL("Received Deauth frame for Addr: "MAC_ADDRESS_STR" (mlm state = %s," |
| 140 | " sme state = %d systemrole = %d) with reason code %d from " |
| 141 | MAC_ADDRESS_STR), MAC_ADDR_ARRAY(pHdr->da), |
| 142 | limMlmStateStr(psessionEntry->limMlmState), psessionEntry->limSmeState, |
| 143 | psessionEntry->limSystemRole, reasonCode, |
Kanchanapally, Vidyullatha | f9426e5 | 2013-12-24 17:28:54 +0530 | [diff] [blame] | 144 | MAC_ADDR_ARRAY(pHdr->sa));) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 145 | |
Madan Mohan Koyyalamudi | cd78499 | 2013-01-11 15:30:36 -0800 | [diff] [blame] | 146 | if (limCheckDisassocDeauthAckPending(pMac, (tANI_U8*)pHdr->sa)) |
| 147 | { |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 148 | PELOGE(limLog(pMac, LOGE, |
| 149 | FL("Ignore the Deauth received, while waiting for ack of " |
| 150 | "disassoc/deauth"));) |
Madan Mohan Koyyalamudi | cd78499 | 2013-01-11 15:30:36 -0800 | [diff] [blame] | 151 | limCleanUpDisassocDeauthReq(pMac,(tANI_U8*)pHdr->sa, 1); |
| 152 | return; |
| 153 | } |
| 154 | |
| 155 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 156 | if ( (psessionEntry->limSystemRole == eLIM_AP_ROLE )||(psessionEntry->limSystemRole == eLIM_BT_AMP_AP_ROLE) ) |
| 157 | { |
| 158 | switch (reasonCode) |
| 159 | { |
| 160 | case eSIR_MAC_UNSPEC_FAILURE_REASON: |
| 161 | case eSIR_MAC_DEAUTH_LEAVING_BSS_REASON: |
| 162 | // Valid reasonCode in received Deauthentication frame |
| 163 | break; |
| 164 | |
| 165 | default: |
| 166 | // Invalid reasonCode in received Deauthentication frame |
| 167 | // Log error and ignore the frame |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 168 | PELOGE(limLog(pMac, LOGE, |
| 169 | FL("received Deauth frame with invalid reasonCode %d from " |
| 170 | MAC_ADDRESS_STR), reasonCode, MAC_ADDR_ARRAY(pHdr->sa));) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 171 | |
| 172 | break; |
| 173 | } |
| 174 | } |
| 175 | else if (psessionEntry->limSystemRole == eLIM_STA_ROLE ||psessionEntry->limSystemRole == eLIM_BT_AMP_STA_ROLE) |
| 176 | { |
| 177 | switch (reasonCode) |
| 178 | { |
| 179 | case eSIR_MAC_UNSPEC_FAILURE_REASON: |
| 180 | case eSIR_MAC_PREV_AUTH_NOT_VALID_REASON: |
| 181 | case eSIR_MAC_DEAUTH_LEAVING_BSS_REASON: |
| 182 | case eSIR_MAC_CLASS2_FRAME_FROM_NON_AUTH_STA_REASON: |
| 183 | case eSIR_MAC_CLASS3_FRAME_FROM_NON_ASSOC_STA_REASON: |
| 184 | case eSIR_MAC_STA_NOT_PRE_AUTHENTICATED_REASON: |
| 185 | // Valid reasonCode in received Deauth frame |
| 186 | break; |
| 187 | |
| 188 | default: |
| 189 | // Invalid reasonCode in received Deauth frame |
| 190 | // Log error and ignore the frame |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 191 | PELOGE(limLog(pMac, LOGE, |
| 192 | FL("received Deauth frame with invalid reasonCode %d from " |
| 193 | MAC_ADDRESS_STR), reasonCode, MAC_ADDR_ARRAY(pHdr->sa));) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 194 | |
| 195 | break; |
| 196 | } |
| 197 | } |
| 198 | else |
| 199 | { |
| 200 | // Received Deauth frame in either IBSS |
Srinivas Girigowda | c03c5a8 | 2013-07-01 13:44:54 -0700 | [diff] [blame] | 201 | // or un-known role. Log and ignore it |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 202 | limLog(pMac, LOGE, |
| 203 | FL("received Deauth frame with reasonCode %d in role %d from " |
| 204 | MAC_ADDRESS_STR),reasonCode, psessionEntry->limSystemRole, |
| 205 | MAC_ADDR_ARRAY(pHdr->sa)); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 206 | |
| 207 | return; |
| 208 | } |
| 209 | |
| 210 | /** If we are in the middle of ReAssoc, a few things could happen: |
| 211 | * - STA is reassociating to current AP, and receives deauth from: |
| 212 | * a) current AP |
| 213 | * b) other AP |
| 214 | * - STA is reassociating to a new AP, and receives deauth from: |
| 215 | * c) current AP |
| 216 | * d) reassoc AP |
| 217 | * e) other AP |
| 218 | * |
| 219 | * The logic is: |
| 220 | * 1) If rcv deauth from an AP other than the one we're trying to |
| 221 | * reassociate with, then drop the deauth frame (case b, c, e) |
| 222 | * 2) If rcv deauth from the "new" reassoc AP (case d), then restore |
| 223 | * context with previous AP and send SME_REASSOC_RSP failure. |
| 224 | * 3) If rcv deauth from the reassoc AP, which is also the same |
| 225 | * AP we're currently associated with (case a), then proceed |
| 226 | * with normal deauth processing. |
| 227 | */ |
Dhanashri Atre | af3e84d | 2013-01-18 18:03:06 -0800 | [diff] [blame] | 228 | if ( psessionEntry->limReAssocbssId!=NULL ) |
| 229 | { |
| 230 | pRoamSessionEntry = peFindSessionByBssid(pMac, psessionEntry->limReAssocbssId, &roamSessionId); |
| 231 | } |
| 232 | if (limIsReassocInProgress(pMac,psessionEntry) || limIsReassocInProgress(pMac,pRoamSessionEntry)) { |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 233 | if (!IS_REASSOC_BSSID(pMac,pHdr->sa,psessionEntry)) { |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 234 | PELOGE(limLog(pMac, LOGE, FL("Rcv Deauth from unknown/different " |
| 235 | "AP while ReAssoc. Ignore "MAC_ADDRESS_STR),MAC_ADDR_ARRAY(pHdr->sa));) |
| 236 | PELOGE(limLog(pMac, LOGE, FL(" limReAssocbssId : "MAC_ADDRESS_STR), |
| 237 | MAC_ADDR_ARRAY(psessionEntry->limReAssocbssId));) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 238 | return; |
| 239 | } |
| 240 | |
| 241 | /** Received deauth from the new AP to which we tried to ReAssociate. |
| 242 | * Drop ReAssoc and Restore the Previous context( current connected AP). |
| 243 | */ |
| 244 | if (!IS_CURRENT_BSSID(pMac, pHdr->sa,psessionEntry)) { |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 245 | PELOGE(limLog(pMac, LOGE, FL("received DeAuth from the New AP to " |
| 246 | "which ReAssoc is sent "MAC_ADDRESS_STR),MAC_ADDR_ARRAY(pHdr->sa));) |
| 247 | PELOGE(limLog(pMac, LOGE, FL(" psessionEntry->bssId: "MAC_ADDRESS_STR), |
| 248 | MAC_ADDR_ARRAY(psessionEntry->bssId));) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 249 | limRestorePreReassocState(pMac, |
| 250 | eSIR_SME_REASSOC_REFUSED, reasonCode,psessionEntry); |
| 251 | return; |
| 252 | } |
| 253 | } |
| 254 | |
| 255 | |
| 256 | /* If received DeAuth from AP other than the one we're trying to join with |
| 257 | * nor associated with, then ignore deauth and delete Pre-auth entry. |
| 258 | */ |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 259 | if(psessionEntry->limSystemRole != eLIM_AP_ROLE ){ |
Gopichand Nakkala | 2a0a157 | 2013-02-10 21:39:16 -0800 | [diff] [blame] | 260 | if (!IS_CURRENT_BSSID(pMac, pHdr->bssId, psessionEntry)) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 261 | { |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 262 | PELOGE(limLog(pMac, LOGE, FL("received DeAuth from an AP other " |
| 263 | "than we're trying to join. Ignore. "MAC_ADDRESS_STR), |
| 264 | MAC_ADDR_ARRAY(pHdr->sa));) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 265 | if (limSearchPreAuthList(pMac, pHdr->sa)) |
| 266 | { |
Abhishek Singh | 3cbf605 | 2014-12-15 16:46:42 +0530 | [diff] [blame] | 267 | limLog(pMac, LOG1, FL("Preauth entry exist. " |
| 268 | "Deleting... ")); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 269 | limDeletePreAuthNode(pMac, pHdr->sa); |
| 270 | } |
| 271 | return; |
| 272 | } |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 273 | } |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 274 | |
Gopichand Nakkala | 2a0a157 | 2013-02-10 21:39:16 -0800 | [diff] [blame] | 275 | pStaDs = dphLookupHashEntry(pMac, pHdr->sa, &aid, &psessionEntry->dph.dphHashTable); |
| 276 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 277 | // Check for pre-assoc states |
| 278 | switch (psessionEntry->limSystemRole) |
| 279 | { |
| 280 | case eLIM_STA_ROLE: |
| 281 | case eLIM_BT_AMP_STA_ROLE: |
| 282 | switch (psessionEntry->limMlmState) |
| 283 | { |
| 284 | case eLIM_MLM_WT_AUTH_FRAME2_STATE: |
| 285 | /** |
| 286 | * AP sent Deauth frame while waiting |
| 287 | * for Auth frame2. Report Auth failure |
| 288 | * to SME. |
| 289 | */ |
| 290 | |
| 291 | // Log error |
Abhishek Singh | 3cbf605 | 2014-12-15 16:46:42 +0530 | [diff] [blame] | 292 | limLog(pMac, LOG1, |
Sushant Kaushik | 1b64538 | 2014-10-13 16:39:36 +0530 | [diff] [blame] | 293 | FL("received Deauth frame state %d with failure " |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 294 | "code %d from "MAC_ADDRESS_STR), |
| 295 | psessionEntry->limMlmState, reasonCode, |
Abhishek Singh | 3cbf605 | 2014-12-15 16:46:42 +0530 | [diff] [blame] | 296 | MAC_ADDR_ARRAY(pHdr->sa)); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 297 | |
| 298 | limRestoreFromAuthState(pMac, eSIR_SME_DEAUTH_WHILE_JOIN, |
| 299 | reasonCode,psessionEntry); |
| 300 | |
| 301 | return; |
| 302 | |
| 303 | case eLIM_MLM_AUTHENTICATED_STATE: |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 304 | limLog(pMac, LOG1, |
Sushant Kaushik | 1b64538 | 2014-10-13 16:39:36 +0530 | [diff] [blame] | 305 | FL("received Deauth frame state %d with " |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 306 | "reasonCode=%d from "MAC_ADDRESS_STR), |
| 307 | psessionEntry->limMlmState, reasonCode, |
| 308 | MAC_ADDR_ARRAY(pHdr->sa)); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 309 | /// Issue Deauth Indication to SME. |
Hema Aparna Medicharla | eef78fc | 2013-07-12 11:47:01 +0530 | [diff] [blame] | 310 | vos_mem_copy((tANI_U8 *) &mlmDeauthInd.peerMacAddr, |
| 311 | pHdr->sa, |
| 312 | sizeof(tSirMacAddr)); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 313 | mlmDeauthInd.reasonCode = reasonCode; |
| 314 | |
| 315 | psessionEntry->limMlmState = eLIM_MLM_IDLE_STATE; |
Jeff Johnson | e724574 | 2012-09-05 17:12:55 -0700 | [diff] [blame] | 316 | MTRACE(macTrace(pMac, TRACE_CODE_MLM_STATE, psessionEntry->peSessionId, psessionEntry->limMlmState)); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 317 | |
| 318 | |
| 319 | limPostSmeMessage(pMac, |
| 320 | LIM_MLM_DEAUTH_IND, |
| 321 | (tANI_U32 *) &mlmDeauthInd); |
| 322 | return; |
| 323 | |
| 324 | case eLIM_MLM_WT_ASSOC_RSP_STATE: |
| 325 | /** |
| 326 | * AP may have 'aged-out' our Pre-auth |
| 327 | * context. Delete local pre-auth context |
| 328 | * if any and issue ASSOC_CNF to SME. |
| 329 | */ |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 330 | limLog(pMac, LOG1, |
Sushant Kaushik | 1b64538 | 2014-10-13 16:39:36 +0530 | [diff] [blame] | 331 | FL("received Deauth frame state %d with " |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 332 | "reasonCode=%d from "MAC_ADDRESS_STR), |
| 333 | psessionEntry->limMlmState, reasonCode, |
| 334 | MAC_ADDR_ARRAY(pHdr->sa)); |
| 335 | if (limSearchPreAuthList(pMac, pHdr->sa)) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 336 | limDeletePreAuthNode(pMac, pHdr->sa); |
| 337 | |
| 338 | if (psessionEntry->pLimMlmJoinReq) |
| 339 | { |
Hema Aparna Medicharla | eef78fc | 2013-07-12 11:47:01 +0530 | [diff] [blame] | 340 | vos_mem_free(psessionEntry->pLimMlmJoinReq); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 341 | psessionEntry->pLimMlmJoinReq = NULL; |
| 342 | } |
| 343 | |
| 344 | mlmAssocCnf.resultCode = eSIR_SME_DEAUTH_WHILE_JOIN; |
| 345 | mlmAssocCnf.protStatusCode = reasonCode; |
| 346 | |
| 347 | /* PE session Id*/ |
| 348 | mlmAssocCnf.sessionId = psessionEntry->peSessionId; |
| 349 | |
| 350 | psessionEntry->limMlmState = |
| 351 | psessionEntry->limPrevMlmState; |
Jeff Johnson | e724574 | 2012-09-05 17:12:55 -0700 | [diff] [blame] | 352 | MTRACE(macTrace(pMac, TRACE_CODE_MLM_STATE, psessionEntry->peSessionId, psessionEntry->limMlmState)); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 353 | |
| 354 | // Deactive Association response timeout |
| 355 | limDeactivateAndChangeTimer( |
| 356 | pMac, |
| 357 | eLIM_ASSOC_FAIL_TIMER); |
| 358 | |
| 359 | limPostSmeMessage( |
| 360 | pMac, |
| 361 | LIM_MLM_ASSOC_CNF, |
| 362 | (tANI_U32 *) &mlmAssocCnf); |
| 363 | |
| 364 | return; |
| 365 | |
Madan Mohan Koyyalamudi | 58c8779 | 2013-08-30 02:51:14 +0530 | [diff] [blame] | 366 | case eLIM_MLM_WT_ADD_STA_RSP_STATE: |
| 367 | psessionEntry->fDeauthReceived = true; |
| 368 | PELOGW(limLog(pMac, LOGW, |
Sushant Kaushik | 1b64538 | 2014-10-13 16:39:36 +0530 | [diff] [blame] | 369 | FL("Received Deauth frame in state %d with Reason " |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 370 | "Code %d from Peer"MAC_ADDRESS_STR), |
| 371 | psessionEntry->limMlmState, reasonCode, |
| 372 | MAC_ADDR_ARRAY(pHdr->sa));) |
Madan Mohan Koyyalamudi | 58c8779 | 2013-08-30 02:51:14 +0530 | [diff] [blame] | 373 | return ; |
| 374 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 375 | case eLIM_MLM_IDLE_STATE: |
| 376 | case eLIM_MLM_LINK_ESTABLISHED_STATE: |
Gopichand Nakkala | 2a0a157 | 2013-02-10 21:39:16 -0800 | [diff] [blame] | 377 | #ifdef FEATURE_WLAN_TDLS |
| 378 | if ((NULL != pStaDs) && (STA_ENTRY_TDLS_PEER == pStaDs->staType)) |
| 379 | { |
| 380 | PELOGE(limLog(pMac, LOGE, |
Sushant Kaushik | 1b64538 | 2014-10-13 16:39:36 +0530 | [diff] [blame] | 381 | FL("received Deauth frame in state %d with " |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 382 | "reason code %d from Tdls peer" |
| 383 | MAC_ADDRESS_STR), |
| 384 | psessionEntry->limMlmState,reasonCode, |
| 385 | MAC_ADDR_ARRAY(pHdr->sa));) |
Gopichand Nakkala | 2a0a157 | 2013-02-10 21:39:16 -0800 | [diff] [blame] | 386 | limSendSmeTDLSDelStaInd(pMac, pStaDs, psessionEntry, |
| 387 | reasonCode); |
| 388 | return; |
| 389 | } |
| 390 | else |
| 391 | { |
Gopichand Nakkala | 78a6c81 | 2013-05-13 16:39:49 +0530 | [diff] [blame] | 392 | |
| 393 | limDeleteTDLSPeers(pMac, psessionEntry); |
Gopichand Nakkala | 2a0a157 | 2013-02-10 21:39:16 -0800 | [diff] [blame] | 394 | #endif |
| 395 | /** |
| 396 | * This could be Deauthentication frame from |
| 397 | * a BSS with which pre-authentication was |
| 398 | * performed. Delete Pre-auth entry if found. |
| 399 | */ |
| 400 | if (limSearchPreAuthList(pMac, pHdr->sa)) |
| 401 | limDeletePreAuthNode(pMac, pHdr->sa); |
| 402 | #ifdef FEATURE_WLAN_TDLS |
| 403 | } |
| 404 | #endif |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 405 | break; |
| 406 | |
| 407 | case eLIM_MLM_WT_REASSOC_RSP_STATE: |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 408 | limLog(pMac, LOGE, |
Sushant Kaushik | 1b64538 | 2014-10-13 16:39:36 +0530 | [diff] [blame] | 409 | FL("received Deauth frame state %d with " |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 410 | "reasonCode=%d from "MAC_ADDRESS_STR), |
| 411 | psessionEntry->limMlmState, reasonCode, |
| 412 | MAC_ADDR_ARRAY(pHdr->sa)); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 413 | break; |
| 414 | |
| 415 | case eLIM_MLM_WT_FT_REASSOC_RSP_STATE: |
Madan Mohan Koyyalamudi | 85d140a | 2012-10-18 20:23:01 -0700 | [diff] [blame] | 416 | PELOGE(limLog(pMac, LOGE, |
Sushant Kaushik | 1b64538 | 2014-10-13 16:39:36 +0530 | [diff] [blame] | 417 | FL("received Deauth frame in FT state %d with " |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 418 | "reasonCode=%d from "MAC_ADDRESS_STR), |
| 419 | psessionEntry->limMlmState, reasonCode, |
| 420 | MAC_ADDR_ARRAY(pHdr->sa));) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 421 | break; |
| 422 | |
| 423 | default: |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 424 | PELOGE(limLog(pMac, LOGE, |
Sushant Kaushik | 1b64538 | 2014-10-13 16:39:36 +0530 | [diff] [blame] | 425 | FL("received Deauth frame in state %d with " |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 426 | "reasonCode=%d from "MAC_ADDRESS_STR), |
| 427 | psessionEntry->limMlmState, reasonCode, |
| 428 | MAC_ADDR_ARRAY(pHdr->sa));) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 429 | return; |
| 430 | } |
| 431 | break; |
| 432 | |
| 433 | case eLIM_STA_IN_IBSS_ROLE: |
| 434 | break; |
| 435 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 436 | case eLIM_AP_ROLE: |
| 437 | break; |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 438 | |
| 439 | default: // eLIM_AP_ROLE or eLIM_BT_AMP_AP_ROLE |
| 440 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 441 | |
| 442 | return; |
| 443 | } // end switch (pMac->lim.gLimSystemRole) |
| 444 | |
| 445 | |
| 446 | |
| 447 | /** |
| 448 | * Extract 'associated' context for STA, if any. |
| 449 | * This is maintained by DPH and created by LIM. |
| 450 | */ |
Gopichand Nakkala | 2a0a157 | 2013-02-10 21:39:16 -0800 | [diff] [blame] | 451 | if (NULL == pStaDs) |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 452 | { |
| 453 | limLog(pMac, LOGE, FL("pStaDs is NULL")); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 454 | return; |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 455 | } |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 456 | |
| 457 | if ((pStaDs->mlmStaContext.mlmState == eLIM_MLM_WT_DEL_STA_RSP_STATE) || |
Sushant Kaushik | efe08fa | 2015-07-06 14:54:09 +0530 | [diff] [blame] | 458 | (pStaDs->mlmStaContext.mlmState == eLIM_MLM_WT_DEL_BSS_RSP_STATE)) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 459 | { |
| 460 | /** |
| 461 | * Already in the process of deleting context for the peer |
| 462 | * and received Deauthentication frame. Log and Ignore. |
| 463 | */ |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 464 | PELOGE(limLog(pMac, LOGE, |
Sushant Kaushik | 1b64538 | 2014-10-13 16:39:36 +0530 | [diff] [blame] | 465 | FL("received Deauth frame from peer that is in state %d, addr " |
Sachin Ahuja | 60a5061 | 2015-04-20 17:55:08 +0530 | [diff] [blame] | 466 | MAC_ADDRESS_STR", isDisassocDeauthInProgress : %d\n"), |
| 467 | pStaDs->mlmStaContext.mlmState,MAC_ADDR_ARRAY(pHdr->sa), |
| 468 | pStaDs->isDisassocDeauthInProgress);) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 469 | return; |
| 470 | } |
| 471 | pStaDs->mlmStaContext.disassocReason = (tSirMacReasonCodes)reasonCode; |
| 472 | pStaDs->mlmStaContext.cleanupTrigger = eLIM_PEER_ENTITY_DEAUTH; |
| 473 | |
Sachin Ahuja | 3d47fcd | 2015-08-28 16:02:06 +0530 | [diff] [blame^] | 474 | |
| 475 | /* send the LOST_LINK_PARAMS_IND to SME*/ |
| 476 | limUpdateLostLinkParams(pMac, psessionEntry, pRxPacketInfo); |
| 477 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 478 | /// Issue Deauth Indication to SME. |
Hema Aparna Medicharla | eef78fc | 2013-07-12 11:47:01 +0530 | [diff] [blame] | 479 | vos_mem_copy((tANI_U8 *) &mlmDeauthInd.peerMacAddr, |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 480 | pStaDs->staAddr, |
| 481 | sizeof(tSirMacAddr)); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 482 | mlmDeauthInd.reasonCode = (tANI_U8) pStaDs->mlmStaContext.disassocReason; |
| 483 | mlmDeauthInd.deauthTrigger = eLIM_PEER_ENTITY_DEAUTH; |
| 484 | |
| 485 | |
Madan Mohan Koyyalamudi | 85d140a | 2012-10-18 20:23:01 -0700 | [diff] [blame] | 486 | /* |
| 487 | * If we're in the middle of ReAssoc and received deauth from |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 488 | * the ReAssoc AP, then notify SME by sending REASSOC_RSP with |
Madan Mohan Koyyalamudi | 85d140a | 2012-10-18 20:23:01 -0700 | [diff] [blame] | 489 | * failure result code. SME will post the disconnect to the |
| 490 | * supplicant and the latter would start a fresh assoc. |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 491 | */ |
| 492 | if (limIsReassocInProgress(pMac,psessionEntry)) { |
| 493 | /** |
| 494 | * AP may have 'aged-out' our Pre-auth |
| 495 | * context. Delete local pre-auth context |
| 496 | * if any and issue REASSOC_CNF to SME. |
| 497 | */ |
| 498 | if (limSearchPreAuthList(pMac, pHdr->sa)) |
| 499 | limDeletePreAuthNode(pMac, pHdr->sa); |
| 500 | |
| 501 | if (psessionEntry->limAssocResponseData) { |
Hema Aparna Medicharla | eef78fc | 2013-07-12 11:47:01 +0530 | [diff] [blame] | 502 | vos_mem_free(psessionEntry->limAssocResponseData); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 503 | psessionEntry->limAssocResponseData = NULL; |
| 504 | } |
| 505 | |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 506 | PELOGE(limLog(pMac, LOGE, FL("Rcv Deauth from ReAssoc AP. " |
| 507 | "Issue REASSOC_CNF. "));) |
Madan Mohan Koyyalamudi | 85d140a | 2012-10-18 20:23:01 -0700 | [diff] [blame] | 508 | /* |
| 509 | * TODO: Instead of overloading eSIR_SME_FT_REASSOC_TIMEOUT_FAILURE |
| 510 | * it would have been good to define/use a different failure type. |
| 511 | * Using eSIR_SME_FT_REASSOC_FAILURE does not seem to clean-up |
| 512 | * properly and we end up seeing "transmit queue timeout". |
| 513 | */ |
| 514 | limPostReassocFailure(pMac, eSIR_SME_FT_REASSOC_TIMEOUT_FAILURE, |
| 515 | eSIR_MAC_UNSPEC_FAILURE_STATUS, psessionEntry); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 516 | return; |
| 517 | } |
Venkata Prathyusha Kuntupalli | 22ba598 | 2013-04-24 13:09:20 -0700 | [diff] [blame] | 518 | /* reset the deauthMsgCnt here since we are able to Process |
| 519 | * the deauth frame and sending up the indication as well */ |
| 520 | if(pMac->lim.deauthMsgCnt != 0) |
| 521 | { |
| 522 | pMac->lim.deauthMsgCnt = 0; |
| 523 | } |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 524 | /// Deauthentication from peer MAC entity |
| 525 | limPostSmeMessage(pMac, LIM_MLM_DEAUTH_IND, (tANI_U32 *) &mlmDeauthInd); |
| 526 | |
| 527 | // send eWNI_SME_DEAUTH_IND to SME |
| 528 | limSendSmeDeauthInd(pMac, pStaDs, psessionEntry); |
| 529 | return; |
| 530 | |
| 531 | } /*** end limProcessDeauthFrame() ***/ |
| 532 | |