Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 1 | /* |
Padma, Santhosh Kumar | 071de2d | 2017-02-02 20:38:03 +0530 | [diff] [blame] | 2 | * Copyright (c) 2012-2014, 2017 The Linux Foundation. All rights reserved. |
Kiet Lam | 842dad0 | 2014-02-18 18:44:02 -0800 | [diff] [blame] | 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" |
Padma, Santhosh Kumar | 071de2d | 2017-02-02 20:38:03 +0530 | [diff] [blame] | 39 | #ifdef WLAN_FEATURE_LFR_MBB |
| 40 | #include "lim_mbb.h" |
| 41 | #endif |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 42 | |
| 43 | |
| 44 | |
| 45 | /** |
| 46 | * limProcessDeauthFrame |
| 47 | * |
| 48 | *FUNCTION: |
| 49 | * This function is called by limProcessMessageQueue() upon |
| 50 | * Deauthentication frame reception. |
| 51 | * |
| 52 | *LOGIC: |
| 53 | * |
| 54 | *ASSUMPTIONS: |
| 55 | * |
| 56 | *NOTE: |
| 57 | * |
| 58 | * @param pMac - Pointer to Global MAC structure |
| 59 | * @param *pRxPacketInfo - A pointer to Buffer descriptor + associated PDUs |
| 60 | * @return None |
| 61 | */ |
| 62 | |
| 63 | void |
| 64 | limProcessDeauthFrame(tpAniSirGlobal pMac, tANI_U8 *pRxPacketInfo, tpPESession psessionEntry) |
| 65 | { |
| 66 | tANI_U8 *pBody; |
| 67 | tANI_U16 aid, reasonCode; |
| 68 | tpSirMacMgmtHdr pHdr; |
| 69 | tLimMlmAssocCnf mlmAssocCnf; |
| 70 | tLimMlmDeauthInd mlmDeauthInd; |
| 71 | tpDphHashNode pStaDs; |
Dhanashri Atre | af3e84d | 2013-01-18 18:03:06 -0800 | [diff] [blame] | 72 | tpPESession pRoamSessionEntry=NULL; |
| 73 | tANI_U8 roamSessionId; |
Chet Lanctot | 186b573 | 2013-03-18 10:26:30 -0700 | [diff] [blame] | 74 | tANI_U32 frameLen; |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 75 | |
| 76 | pHdr = WDA_GET_RX_MAC_HEADER(pRxPacketInfo); |
| 77 | |
| 78 | pBody = WDA_GET_RX_MPDU_DATA(pRxPacketInfo); |
| 79 | |
gaurank kathpalia | b0f95f5 | 2018-10-30 13:13:03 +0530 | [diff] [blame] | 80 | frameLen = WDA_GET_RX_PAYLOAD_LEN(pRxPacketInfo); |
| 81 | if (frameLen < sizeof(reasonCode)) { |
| 82 | PELOGE(limLog(pMac, LOGE, |
| 83 | FL("received invalid framelen %d"), frameLen);) |
| 84 | return; |
| 85 | } |
| 86 | |
Hanumanth Reddy Pothula | f4b4499 | 2017-11-23 15:26:28 +0530 | [diff] [blame] | 87 | if ((eLIM_STA_ROLE == psessionEntry->limSystemRole) && |
| 88 | ((eLIM_SME_WT_DISASSOC_STATE == psessionEntry->limSmeState) || |
| 89 | (eLIM_SME_WT_DEAUTH_STATE == psessionEntry->limSmeState))) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 90 | { |
Madan Mohan Koyyalamudi | 69c94a1 | 2013-07-10 16:34:45 +0530 | [diff] [blame] | 91 | /*Every 15th deauth frame will be logged in kmsg*/ |
Venkata Prathyusha Kuntupalli | 22ba598 | 2013-04-24 13:09:20 -0700 | [diff] [blame] | 92 | if(!(pMac->lim.deauthMsgCnt & 0xF)) |
| 93 | { |
| 94 | PELOGE(limLog(pMac, LOGE, |
Madan Mohan Koyyalamudi | 69c94a1 | 2013-07-10 16:34:45 +0530 | [diff] [blame] | 95 | FL("received Deauth frame in DEAUTH_WT_STATE" |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 96 | "(already processing previously received DEAUTH frame).." |
| 97 | "Dropping this.. Deauth Failed %d"),++pMac->lim.deauthMsgCnt);) |
Venkata Prathyusha Kuntupalli | 22ba598 | 2013-04-24 13:09:20 -0700 | [diff] [blame] | 98 | } |
| 99 | else |
| 100 | { |
| 101 | pMac->lim.deauthMsgCnt++; |
| 102 | } |
Madan Mohan Koyyalamudi | 69c94a1 | 2013-07-10 16:34:45 +0530 | [diff] [blame] | 103 | return; |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 104 | } |
| 105 | |
| 106 | if (limIsGroupAddr(pHdr->sa)) |
| 107 | { |
| 108 | // Received Deauth frame from a BC/MC address |
| 109 | // Log error and ignore it |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 110 | PELOGE(limLog(pMac, LOGE, |
Kiran Kumar Lokere | 531ca70 | 2013-04-01 13:24:23 -0700 | [diff] [blame] | 111 | FL("received Deauth frame from a BC/MC address"));) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 112 | |
| 113 | return; |
| 114 | } |
| 115 | |
| 116 | if (limIsGroupAddr(pHdr->da) && !limIsAddrBC(pHdr->da)) |
| 117 | { |
| 118 | // Received Deauth frame for a MC address |
| 119 | // Log error and ignore it |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 120 | PELOGE(limLog(pMac, LOGE, |
Kiran Kumar Lokere | 531ca70 | 2013-04-01 13:24:23 -0700 | [diff] [blame] | 121 | FL("received Deauth frame for a MC address"));) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 122 | |
| 123 | return; |
| 124 | } |
Chet Lanctot | 186b573 | 2013-03-18 10:26:30 -0700 | [diff] [blame] | 125 | |
| 126 | #ifdef WLAN_FEATURE_11W |
| 127 | /* PMF: If this session is a PMF session, then ensure that this frame was protected */ |
| 128 | if(psessionEntry->limRmfEnabled && (WDA_GET_RX_DPU_FEEDBACK(pRxPacketInfo) & DPU_FEEDBACK_UNPROTECTED_ERROR)) |
| 129 | { |
| 130 | PELOGE(limLog(pMac, LOGE, FL("received an unprotected deauth from AP"));) |
| 131 | // If the frame received is unprotected, forward it to the supplicant to initiate |
| 132 | // an SA query |
Chet Lanctot | 186b573 | 2013-03-18 10:26:30 -0700 | [diff] [blame] | 133 | |
| 134 | //send the unprotected frame indication to SME |
| 135 | limSendSmeUnprotectedMgmtFrameInd( pMac, pHdr->fc.subType, |
| 136 | (tANI_U8*)pHdr, (frameLen + sizeof(tSirMacMgmtHdr)), |
| 137 | psessionEntry->smeSessionId, psessionEntry); |
| 138 | return; |
| 139 | } |
| 140 | #endif |
| 141 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 142 | // Get reasonCode from Deauthentication frame body |
Kiet Lam | aa8e15a | 2014-02-11 23:30:06 -0800 | [diff] [blame] | 143 | reasonCode = sirReadU16(pBody); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 144 | |
| 145 | PELOGE(limLog(pMac, LOGE, |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 146 | FL("Received Deauth frame for Addr: "MAC_ADDRESS_STR" (mlm state = %s," |
| 147 | " sme state = %d systemrole = %d) with reason code %d from " |
| 148 | MAC_ADDRESS_STR), MAC_ADDR_ARRAY(pHdr->da), |
| 149 | limMlmStateStr(psessionEntry->limMlmState), psessionEntry->limSmeState, |
| 150 | psessionEntry->limSystemRole, reasonCode, |
Kanchanapally, Vidyullatha | f9426e5 | 2013-12-24 17:28:54 +0530 | [diff] [blame] | 151 | MAC_ADDR_ARRAY(pHdr->sa));) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 152 | |
Madan Mohan Koyyalamudi | cd78499 | 2013-01-11 15:30:36 -0800 | [diff] [blame] | 153 | if (limCheckDisassocDeauthAckPending(pMac, (tANI_U8*)pHdr->sa)) |
| 154 | { |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 155 | PELOGE(limLog(pMac, LOGE, |
| 156 | FL("Ignore the Deauth received, while waiting for ack of " |
| 157 | "disassoc/deauth"));) |
Madan Mohan Koyyalamudi | cd78499 | 2013-01-11 15:30:36 -0800 | [diff] [blame] | 158 | limCleanUpDisassocDeauthReq(pMac,(tANI_U8*)pHdr->sa, 1); |
| 159 | return; |
| 160 | } |
| 161 | |
| 162 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 163 | if ( (psessionEntry->limSystemRole == eLIM_AP_ROLE )||(psessionEntry->limSystemRole == eLIM_BT_AMP_AP_ROLE) ) |
| 164 | { |
| 165 | switch (reasonCode) |
| 166 | { |
| 167 | case eSIR_MAC_UNSPEC_FAILURE_REASON: |
| 168 | case eSIR_MAC_DEAUTH_LEAVING_BSS_REASON: |
| 169 | // Valid reasonCode in received Deauthentication frame |
| 170 | break; |
| 171 | |
| 172 | default: |
| 173 | // Invalid reasonCode in received Deauthentication frame |
| 174 | // Log error and ignore the frame |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 175 | PELOGE(limLog(pMac, LOGE, |
| 176 | FL("received Deauth frame with invalid reasonCode %d from " |
| 177 | MAC_ADDRESS_STR), reasonCode, MAC_ADDR_ARRAY(pHdr->sa));) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 178 | |
| 179 | break; |
| 180 | } |
| 181 | } |
| 182 | else if (psessionEntry->limSystemRole == eLIM_STA_ROLE ||psessionEntry->limSystemRole == eLIM_BT_AMP_STA_ROLE) |
| 183 | { |
| 184 | switch (reasonCode) |
| 185 | { |
| 186 | case eSIR_MAC_UNSPEC_FAILURE_REASON: |
| 187 | case eSIR_MAC_PREV_AUTH_NOT_VALID_REASON: |
| 188 | case eSIR_MAC_DEAUTH_LEAVING_BSS_REASON: |
| 189 | case eSIR_MAC_CLASS2_FRAME_FROM_NON_AUTH_STA_REASON: |
| 190 | case eSIR_MAC_CLASS3_FRAME_FROM_NON_ASSOC_STA_REASON: |
| 191 | case eSIR_MAC_STA_NOT_PRE_AUTHENTICATED_REASON: |
| 192 | // Valid reasonCode in received Deauth frame |
| 193 | break; |
| 194 | |
| 195 | default: |
| 196 | // Invalid reasonCode in received Deauth frame |
| 197 | // Log error and ignore the frame |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 198 | PELOGE(limLog(pMac, LOGE, |
| 199 | FL("received Deauth frame with invalid reasonCode %d from " |
| 200 | MAC_ADDRESS_STR), reasonCode, MAC_ADDR_ARRAY(pHdr->sa));) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 201 | |
| 202 | break; |
| 203 | } |
| 204 | } |
| 205 | else |
| 206 | { |
| 207 | // Received Deauth frame in either IBSS |
Srinivas Girigowda | c03c5a8 | 2013-07-01 13:44:54 -0700 | [diff] [blame] | 208 | // or un-known role. Log and ignore it |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 209 | limLog(pMac, LOGE, |
| 210 | FL("received Deauth frame with reasonCode %d in role %d from " |
| 211 | MAC_ADDRESS_STR),reasonCode, psessionEntry->limSystemRole, |
| 212 | MAC_ADDR_ARRAY(pHdr->sa)); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 213 | |
| 214 | return; |
| 215 | } |
| 216 | |
| 217 | /** If we are in the middle of ReAssoc, a few things could happen: |
| 218 | * - STA is reassociating to current AP, and receives deauth from: |
| 219 | * a) current AP |
| 220 | * b) other AP |
| 221 | * - STA is reassociating to a new AP, and receives deauth from: |
| 222 | * c) current AP |
| 223 | * d) reassoc AP |
| 224 | * e) other AP |
| 225 | * |
| 226 | * The logic is: |
| 227 | * 1) If rcv deauth from an AP other than the one we're trying to |
| 228 | * reassociate with, then drop the deauth frame (case b, c, e) |
| 229 | * 2) If rcv deauth from the "new" reassoc AP (case d), then restore |
| 230 | * context with previous AP and send SME_REASSOC_RSP failure. |
| 231 | * 3) If rcv deauth from the reassoc AP, which is also the same |
| 232 | * AP we're currently associated with (case a), then proceed |
| 233 | * with normal deauth processing. |
| 234 | */ |
Dhanashri Atre | af3e84d | 2013-01-18 18:03:06 -0800 | [diff] [blame] | 235 | if ( psessionEntry->limReAssocbssId!=NULL ) |
| 236 | { |
| 237 | pRoamSessionEntry = peFindSessionByBssid(pMac, psessionEntry->limReAssocbssId, &roamSessionId); |
| 238 | } |
Padma, Santhosh Kumar | 071de2d | 2017-02-02 20:38:03 +0530 | [diff] [blame] | 239 | |
| 240 | #ifdef WLAN_FEATURE_LFR_MBB |
| 241 | if (lim_is_mbb_reassoc_in_progress(pMac, psessionEntry)) { |
| 242 | limLog(pMac, LOGE, FL("Ignore Deauth frame as LFR MBB in progress")); |
| 243 | return; |
| 244 | } |
| 245 | #endif |
| 246 | |
Dhanashri Atre | af3e84d | 2013-01-18 18:03:06 -0800 | [diff] [blame] | 247 | if (limIsReassocInProgress(pMac,psessionEntry) || limIsReassocInProgress(pMac,pRoamSessionEntry)) { |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 248 | if (!IS_REASSOC_BSSID(pMac,pHdr->sa,psessionEntry)) { |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 249 | PELOGE(limLog(pMac, LOGE, FL("Rcv Deauth from unknown/different " |
| 250 | "AP while ReAssoc. Ignore "MAC_ADDRESS_STR),MAC_ADDR_ARRAY(pHdr->sa));) |
| 251 | PELOGE(limLog(pMac, LOGE, FL(" limReAssocbssId : "MAC_ADDRESS_STR), |
| 252 | MAC_ADDR_ARRAY(psessionEntry->limReAssocbssId));) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 253 | return; |
| 254 | } |
| 255 | |
| 256 | /** Received deauth from the new AP to which we tried to ReAssociate. |
| 257 | * Drop ReAssoc and Restore the Previous context( current connected AP). |
| 258 | */ |
| 259 | if (!IS_CURRENT_BSSID(pMac, pHdr->sa,psessionEntry)) { |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 260 | PELOGE(limLog(pMac, LOGE, FL("received DeAuth from the New AP to " |
| 261 | "which ReAssoc is sent "MAC_ADDRESS_STR),MAC_ADDR_ARRAY(pHdr->sa));) |
| 262 | PELOGE(limLog(pMac, LOGE, FL(" psessionEntry->bssId: "MAC_ADDRESS_STR), |
| 263 | MAC_ADDR_ARRAY(psessionEntry->bssId));) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 264 | limRestorePreReassocState(pMac, |
| 265 | eSIR_SME_REASSOC_REFUSED, reasonCode,psessionEntry); |
| 266 | return; |
| 267 | } |
| 268 | } |
| 269 | |
| 270 | |
| 271 | /* If received DeAuth from AP other than the one we're trying to join with |
| 272 | * nor associated with, then ignore deauth and delete Pre-auth entry. |
| 273 | */ |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 274 | if(psessionEntry->limSystemRole != eLIM_AP_ROLE ){ |
Gopichand Nakkala | 2a0a157 | 2013-02-10 21:39:16 -0800 | [diff] [blame] | 275 | if (!IS_CURRENT_BSSID(pMac, pHdr->bssId, psessionEntry)) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 276 | { |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 277 | PELOGE(limLog(pMac, LOGE, FL("received DeAuth from an AP other " |
| 278 | "than we're trying to join. Ignore. "MAC_ADDRESS_STR), |
| 279 | MAC_ADDR_ARRAY(pHdr->sa));) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 280 | if (limSearchPreAuthList(pMac, pHdr->sa)) |
| 281 | { |
Abhishek Singh | 3cbf605 | 2014-12-15 16:46:42 +0530 | [diff] [blame] | 282 | limLog(pMac, LOG1, FL("Preauth entry exist. " |
| 283 | "Deleting... ")); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 284 | limDeletePreAuthNode(pMac, pHdr->sa); |
| 285 | } |
| 286 | return; |
| 287 | } |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 288 | } |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 289 | |
Gopichand Nakkala | 2a0a157 | 2013-02-10 21:39:16 -0800 | [diff] [blame] | 290 | pStaDs = dphLookupHashEntry(pMac, pHdr->sa, &aid, &psessionEntry->dph.dphHashTable); |
| 291 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 292 | // Check for pre-assoc states |
| 293 | switch (psessionEntry->limSystemRole) |
| 294 | { |
| 295 | case eLIM_STA_ROLE: |
| 296 | case eLIM_BT_AMP_STA_ROLE: |
| 297 | switch (psessionEntry->limMlmState) |
| 298 | { |
| 299 | case eLIM_MLM_WT_AUTH_FRAME2_STATE: |
| 300 | /** |
| 301 | * AP sent Deauth frame while waiting |
| 302 | * for Auth frame2. Report Auth failure |
| 303 | * to SME. |
| 304 | */ |
| 305 | |
| 306 | // Log error |
Abhishek Singh | 3cbf605 | 2014-12-15 16:46:42 +0530 | [diff] [blame] | 307 | limLog(pMac, LOG1, |
Sushant Kaushik | 1b64538 | 2014-10-13 16:39:36 +0530 | [diff] [blame] | 308 | FL("received Deauth frame state %d with failure " |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 309 | "code %d from "MAC_ADDRESS_STR), |
| 310 | psessionEntry->limMlmState, reasonCode, |
Abhishek Singh | 3cbf605 | 2014-12-15 16:46:42 +0530 | [diff] [blame] | 311 | MAC_ADDR_ARRAY(pHdr->sa)); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 312 | |
| 313 | limRestoreFromAuthState(pMac, eSIR_SME_DEAUTH_WHILE_JOIN, |
| 314 | reasonCode,psessionEntry); |
| 315 | |
| 316 | return; |
| 317 | |
| 318 | case eLIM_MLM_AUTHENTICATED_STATE: |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 319 | limLog(pMac, LOG1, |
Sushant Kaushik | 1b64538 | 2014-10-13 16:39:36 +0530 | [diff] [blame] | 320 | FL("received Deauth frame state %d with " |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 321 | "reasonCode=%d from "MAC_ADDRESS_STR), |
| 322 | psessionEntry->limMlmState, reasonCode, |
| 323 | MAC_ADDR_ARRAY(pHdr->sa)); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 324 | /// Issue Deauth Indication to SME. |
Hema Aparna Medicharla | eef78fc | 2013-07-12 11:47:01 +0530 | [diff] [blame] | 325 | vos_mem_copy((tANI_U8 *) &mlmDeauthInd.peerMacAddr, |
| 326 | pHdr->sa, |
| 327 | sizeof(tSirMacAddr)); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 328 | mlmDeauthInd.reasonCode = reasonCode; |
| 329 | |
| 330 | psessionEntry->limMlmState = eLIM_MLM_IDLE_STATE; |
Jeff Johnson | e724574 | 2012-09-05 17:12:55 -0700 | [diff] [blame] | 331 | MTRACE(macTrace(pMac, TRACE_CODE_MLM_STATE, psessionEntry->peSessionId, psessionEntry->limMlmState)); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 332 | |
| 333 | |
| 334 | limPostSmeMessage(pMac, |
| 335 | LIM_MLM_DEAUTH_IND, |
| 336 | (tANI_U32 *) &mlmDeauthInd); |
| 337 | return; |
| 338 | |
| 339 | case eLIM_MLM_WT_ASSOC_RSP_STATE: |
| 340 | /** |
| 341 | * AP may have 'aged-out' our Pre-auth |
| 342 | * context. Delete local pre-auth context |
| 343 | * if any and issue ASSOC_CNF to SME. |
| 344 | */ |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 345 | limLog(pMac, LOG1, |
Sushant Kaushik | 1b64538 | 2014-10-13 16:39:36 +0530 | [diff] [blame] | 346 | FL("received Deauth frame state %d with " |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 347 | "reasonCode=%d from "MAC_ADDRESS_STR), |
| 348 | psessionEntry->limMlmState, reasonCode, |
| 349 | MAC_ADDR_ARRAY(pHdr->sa)); |
| 350 | if (limSearchPreAuthList(pMac, pHdr->sa)) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 351 | limDeletePreAuthNode(pMac, pHdr->sa); |
| 352 | |
| 353 | if (psessionEntry->pLimMlmJoinReq) |
| 354 | { |
Hema Aparna Medicharla | eef78fc | 2013-07-12 11:47:01 +0530 | [diff] [blame] | 355 | vos_mem_free(psessionEntry->pLimMlmJoinReq); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 356 | psessionEntry->pLimMlmJoinReq = NULL; |
| 357 | } |
| 358 | |
| 359 | mlmAssocCnf.resultCode = eSIR_SME_DEAUTH_WHILE_JOIN; |
| 360 | mlmAssocCnf.protStatusCode = reasonCode; |
| 361 | |
| 362 | /* PE session Id*/ |
| 363 | mlmAssocCnf.sessionId = psessionEntry->peSessionId; |
| 364 | |
| 365 | psessionEntry->limMlmState = |
| 366 | psessionEntry->limPrevMlmState; |
Jeff Johnson | e724574 | 2012-09-05 17:12:55 -0700 | [diff] [blame] | 367 | MTRACE(macTrace(pMac, TRACE_CODE_MLM_STATE, psessionEntry->peSessionId, psessionEntry->limMlmState)); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 368 | |
| 369 | // Deactive Association response timeout |
| 370 | limDeactivateAndChangeTimer( |
| 371 | pMac, |
| 372 | eLIM_ASSOC_FAIL_TIMER); |
| 373 | |
| 374 | limPostSmeMessage( |
| 375 | pMac, |
| 376 | LIM_MLM_ASSOC_CNF, |
| 377 | (tANI_U32 *) &mlmAssocCnf); |
| 378 | |
| 379 | return; |
| 380 | |
Madan Mohan Koyyalamudi | 58c8779 | 2013-08-30 02:51:14 +0530 | [diff] [blame] | 381 | case eLIM_MLM_WT_ADD_STA_RSP_STATE: |
| 382 | psessionEntry->fDeauthReceived = true; |
| 383 | PELOGW(limLog(pMac, LOGW, |
Sushant Kaushik | 1b64538 | 2014-10-13 16:39:36 +0530 | [diff] [blame] | 384 | FL("Received Deauth frame in state %d with Reason " |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 385 | "Code %d from Peer"MAC_ADDRESS_STR), |
| 386 | psessionEntry->limMlmState, reasonCode, |
| 387 | MAC_ADDR_ARRAY(pHdr->sa));) |
Madan Mohan Koyyalamudi | 58c8779 | 2013-08-30 02:51:14 +0530 | [diff] [blame] | 388 | return ; |
| 389 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 390 | case eLIM_MLM_IDLE_STATE: |
| 391 | case eLIM_MLM_LINK_ESTABLISHED_STATE: |
Gopichand Nakkala | 2a0a157 | 2013-02-10 21:39:16 -0800 | [diff] [blame] | 392 | #ifdef FEATURE_WLAN_TDLS |
| 393 | if ((NULL != pStaDs) && (STA_ENTRY_TDLS_PEER == pStaDs->staType)) |
| 394 | { |
| 395 | PELOGE(limLog(pMac, LOGE, |
Sushant Kaushik | 1b64538 | 2014-10-13 16:39:36 +0530 | [diff] [blame] | 396 | FL("received Deauth frame in state %d with " |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 397 | "reason code %d from Tdls peer" |
| 398 | MAC_ADDRESS_STR), |
| 399 | psessionEntry->limMlmState,reasonCode, |
| 400 | MAC_ADDR_ARRAY(pHdr->sa));) |
Gopichand Nakkala | 2a0a157 | 2013-02-10 21:39:16 -0800 | [diff] [blame] | 401 | limSendSmeTDLSDelStaInd(pMac, pStaDs, psessionEntry, |
| 402 | reasonCode); |
| 403 | return; |
| 404 | } |
| 405 | else |
| 406 | { |
Gopichand Nakkala | 78a6c81 | 2013-05-13 16:39:49 +0530 | [diff] [blame] | 407 | |
| 408 | limDeleteTDLSPeers(pMac, psessionEntry); |
Gopichand Nakkala | 2a0a157 | 2013-02-10 21:39:16 -0800 | [diff] [blame] | 409 | #endif |
| 410 | /** |
| 411 | * This could be Deauthentication frame from |
| 412 | * a BSS with which pre-authentication was |
| 413 | * performed. Delete Pre-auth entry if found. |
| 414 | */ |
| 415 | if (limSearchPreAuthList(pMac, pHdr->sa)) |
| 416 | limDeletePreAuthNode(pMac, pHdr->sa); |
| 417 | #ifdef FEATURE_WLAN_TDLS |
| 418 | } |
| 419 | #endif |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 420 | break; |
| 421 | |
| 422 | case eLIM_MLM_WT_REASSOC_RSP_STATE: |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 423 | limLog(pMac, LOGE, |
Sushant Kaushik | 1b64538 | 2014-10-13 16:39:36 +0530 | [diff] [blame] | 424 | FL("received Deauth frame state %d with " |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 425 | "reasonCode=%d from "MAC_ADDRESS_STR), |
| 426 | psessionEntry->limMlmState, reasonCode, |
| 427 | MAC_ADDR_ARRAY(pHdr->sa)); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 428 | break; |
| 429 | |
| 430 | case eLIM_MLM_WT_FT_REASSOC_RSP_STATE: |
Madan Mohan Koyyalamudi | 85d140a | 2012-10-18 20:23:01 -0700 | [diff] [blame] | 431 | PELOGE(limLog(pMac, LOGE, |
Sushant Kaushik | 1b64538 | 2014-10-13 16:39:36 +0530 | [diff] [blame] | 432 | FL("received Deauth frame in FT state %d with " |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 433 | "reasonCode=%d from "MAC_ADDRESS_STR), |
| 434 | psessionEntry->limMlmState, reasonCode, |
| 435 | MAC_ADDR_ARRAY(pHdr->sa));) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 436 | break; |
| 437 | |
| 438 | default: |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 439 | PELOGE(limLog(pMac, LOGE, |
Sushant Kaushik | 1b64538 | 2014-10-13 16:39:36 +0530 | [diff] [blame] | 440 | FL("received Deauth frame in state %d with " |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 441 | "reasonCode=%d from "MAC_ADDRESS_STR), |
| 442 | psessionEntry->limMlmState, reasonCode, |
| 443 | MAC_ADDR_ARRAY(pHdr->sa));) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 444 | return; |
| 445 | } |
| 446 | break; |
| 447 | |
| 448 | case eLIM_STA_IN_IBSS_ROLE: |
| 449 | break; |
| 450 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 451 | case eLIM_AP_ROLE: |
| 452 | break; |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 453 | |
| 454 | default: // eLIM_AP_ROLE or eLIM_BT_AMP_AP_ROLE |
| 455 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 456 | |
| 457 | return; |
| 458 | } // end switch (pMac->lim.gLimSystemRole) |
| 459 | |
| 460 | |
| 461 | |
| 462 | /** |
| 463 | * Extract 'associated' context for STA, if any. |
| 464 | * This is maintained by DPH and created by LIM. |
| 465 | */ |
Gopichand Nakkala | 2a0a157 | 2013-02-10 21:39:16 -0800 | [diff] [blame] | 466 | if (NULL == pStaDs) |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 467 | { |
| 468 | limLog(pMac, LOGE, FL("pStaDs is NULL")); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 469 | return; |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 470 | } |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 471 | |
| 472 | if ((pStaDs->mlmStaContext.mlmState == eLIM_MLM_WT_DEL_STA_RSP_STATE) || |
Pankaj Singh | 84fe673 | 2020-01-14 20:27:47 +0530 | [diff] [blame] | 473 | (pStaDs->mlmStaContext.mlmState == eLIM_MLM_WT_DEL_BSS_RSP_STATE) || |
| 474 | pStaDs->sta_deletion_in_progress) |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 475 | { |
| 476 | /** |
| 477 | * Already in the process of deleting context for the peer |
| 478 | * and received Deauthentication frame. Log and Ignore. |
| 479 | */ |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 480 | PELOGE(limLog(pMac, LOGE, |
Sushant Kaushik | 1b64538 | 2014-10-13 16:39:36 +0530 | [diff] [blame] | 481 | FL("received Deauth frame from peer that is in state %d, addr " |
Sachin Ahuja | 60a5061 | 2015-04-20 17:55:08 +0530 | [diff] [blame] | 482 | MAC_ADDRESS_STR", isDisassocDeauthInProgress : %d\n"), |
Pankaj Singh | 84fe673 | 2020-01-14 20:27:47 +0530 | [diff] [blame] | 483 | |
Sachin Ahuja | 60a5061 | 2015-04-20 17:55:08 +0530 | [diff] [blame] | 484 | pStaDs->mlmStaContext.mlmState,MAC_ADDR_ARRAY(pHdr->sa), |
| 485 | pStaDs->isDisassocDeauthInProgress);) |
Pankaj Singh | 84fe673 | 2020-01-14 20:27:47 +0530 | [diff] [blame] | 486 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 487 | return; |
| 488 | } |
| 489 | pStaDs->mlmStaContext.disassocReason = (tSirMacReasonCodes)reasonCode; |
| 490 | pStaDs->mlmStaContext.cleanupTrigger = eLIM_PEER_ENTITY_DEAUTH; |
Pankaj Singh | 84fe673 | 2020-01-14 20:27:47 +0530 | [diff] [blame] | 491 | pStaDs->sta_deletion_in_progress = true; |
Sachin Ahuja | 3d47fcd | 2015-08-28 16:02:06 +0530 | [diff] [blame] | 492 | |
| 493 | /* send the LOST_LINK_PARAMS_IND to SME*/ |
| 494 | limUpdateLostLinkParams(pMac, psessionEntry, pRxPacketInfo); |
| 495 | |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 496 | /// Issue Deauth Indication to SME. |
Hema Aparna Medicharla | eef78fc | 2013-07-12 11:47:01 +0530 | [diff] [blame] | 497 | vos_mem_copy((tANI_U8 *) &mlmDeauthInd.peerMacAddr, |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 498 | pStaDs->staAddr, |
| 499 | sizeof(tSirMacAddr)); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 500 | mlmDeauthInd.reasonCode = (tANI_U8) pStaDs->mlmStaContext.disassocReason; |
| 501 | mlmDeauthInd.deauthTrigger = eLIM_PEER_ENTITY_DEAUTH; |
| 502 | |
| 503 | |
Madan Mohan Koyyalamudi | 85d140a | 2012-10-18 20:23:01 -0700 | [diff] [blame] | 504 | /* |
| 505 | * If we're in the middle of ReAssoc and received deauth from |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 506 | * the ReAssoc AP, then notify SME by sending REASSOC_RSP with |
Madan Mohan Koyyalamudi | 85d140a | 2012-10-18 20:23:01 -0700 | [diff] [blame] | 507 | * failure result code. SME will post the disconnect to the |
| 508 | * supplicant and the latter would start a fresh assoc. |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 509 | */ |
| 510 | if (limIsReassocInProgress(pMac,psessionEntry)) { |
| 511 | /** |
| 512 | * AP may have 'aged-out' our Pre-auth |
| 513 | * context. Delete local pre-auth context |
| 514 | * if any and issue REASSOC_CNF to SME. |
| 515 | */ |
| 516 | if (limSearchPreAuthList(pMac, pHdr->sa)) |
| 517 | limDeletePreAuthNode(pMac, pHdr->sa); |
| 518 | |
| 519 | if (psessionEntry->limAssocResponseData) { |
Hema Aparna Medicharla | eef78fc | 2013-07-12 11:47:01 +0530 | [diff] [blame] | 520 | vos_mem_free(psessionEntry->limAssocResponseData); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 521 | psessionEntry->limAssocResponseData = NULL; |
| 522 | } |
| 523 | |
Abhishek Singh | 6f9d2c8 | 2013-12-24 15:29:53 +0530 | [diff] [blame] | 524 | PELOGE(limLog(pMac, LOGE, FL("Rcv Deauth from ReAssoc AP. " |
| 525 | "Issue REASSOC_CNF. "));) |
Madan Mohan Koyyalamudi | 85d140a | 2012-10-18 20:23:01 -0700 | [diff] [blame] | 526 | /* |
| 527 | * TODO: Instead of overloading eSIR_SME_FT_REASSOC_TIMEOUT_FAILURE |
| 528 | * it would have been good to define/use a different failure type. |
| 529 | * Using eSIR_SME_FT_REASSOC_FAILURE does not seem to clean-up |
| 530 | * properly and we end up seeing "transmit queue timeout". |
| 531 | */ |
| 532 | limPostReassocFailure(pMac, eSIR_SME_FT_REASSOC_TIMEOUT_FAILURE, |
| 533 | eSIR_MAC_UNSPEC_FAILURE_STATUS, psessionEntry); |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 534 | return; |
| 535 | } |
Venkata Prathyusha Kuntupalli | 22ba598 | 2013-04-24 13:09:20 -0700 | [diff] [blame] | 536 | /* reset the deauthMsgCnt here since we are able to Process |
| 537 | * the deauth frame and sending up the indication as well */ |
| 538 | if(pMac->lim.deauthMsgCnt != 0) |
| 539 | { |
| 540 | pMac->lim.deauthMsgCnt = 0; |
| 541 | } |
Jeff Johnson | 295189b | 2012-06-20 16:38:30 -0700 | [diff] [blame] | 542 | /// Deauthentication from peer MAC entity |
| 543 | limPostSmeMessage(pMac, LIM_MLM_DEAUTH_IND, (tANI_U32 *) &mlmDeauthInd); |
| 544 | |
| 545 | // send eWNI_SME_DEAUTH_IND to SME |
| 546 | limSendSmeDeauthInd(pMac, pStaDs, psessionEntry); |
| 547 | return; |
| 548 | |
| 549 | } /*** end limProcessDeauthFrame() ***/ |
| 550 | |