Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 1 | /* |
Abhishek Singh | cfb4448 | 2017-03-10 12:42:37 +0530 | [diff] [blame] | 2 | * Copyright (c) 2011-2017 The Linux Foundation. All rights reserved. |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -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. |
| 20 | */ |
| 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 | |
| 28 | /**========================================================================= |
| 29 | |
| 30 | \file lim_session.c |
| 31 | |
| 32 | \brief implementation for lim Session related APIs |
| 33 | |
| 34 | \author Sunit Bhatia |
| 35 | |
| 36 | ========================================================================*/ |
| 37 | |
| 38 | /*-------------------------------------------------------------------------- |
| 39 | Include Files |
| 40 | ------------------------------------------------------------------------*/ |
| 41 | #include "ani_global.h" |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 42 | #include "lim_ft_defs.h" |
| 43 | #include "lim_ft.h" |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 44 | #include "lim_session.h" |
| 45 | #include "lim_utils.h" |
| 46 | |
| 47 | #include "sch_api.h" |
| 48 | #include "lim_send_messages.h" |
| 49 | |
| 50 | /*-------------------------------------------------------------------------- |
| 51 | |
| 52 | \brief pe_init_beacon_params() - Initialize the beaconParams structure |
| 53 | |
| 54 | \param tpPESession - pointer to the session context or NULL if session can not be created. |
| 55 | \return void |
| 56 | \sa |
| 57 | |
| 58 | --------------------------------------------------------------------------*/ |
| 59 | |
Jeff Johnson | 9769900 | 2016-10-07 07:32:55 -0700 | [diff] [blame] | 60 | static void pe_init_beacon_params(tpAniSirGlobal pMac, |
| 61 | tpPESession psessionEntry) |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 62 | { |
| 63 | psessionEntry->beaconParams.beaconInterval = 0; |
| 64 | psessionEntry->beaconParams.fShortPreamble = 0; |
| 65 | psessionEntry->beaconParams.llaCoexist = 0; |
| 66 | psessionEntry->beaconParams.llbCoexist = 0; |
| 67 | psessionEntry->beaconParams.llgCoexist = 0; |
| 68 | psessionEntry->beaconParams.ht20Coexist = 0; |
| 69 | psessionEntry->beaconParams.llnNonGFCoexist = 0; |
| 70 | psessionEntry->beaconParams.fRIFSMode = 0; |
| 71 | psessionEntry->beaconParams.fLsigTXOPProtectionFullSupport = 0; |
| 72 | psessionEntry->beaconParams.gHTObssMode = 0; |
| 73 | |
| 74 | /* Number of legacy STAs associated */ |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 75 | qdf_mem_set((void *)&psessionEntry->gLim11bParams, |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 76 | sizeof(tLimProtStaParams), 0); |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 77 | qdf_mem_set((void *)&psessionEntry->gLim11aParams, |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 78 | sizeof(tLimProtStaParams), 0); |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 79 | qdf_mem_set((void *)&psessionEntry->gLim11gParams, |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 80 | sizeof(tLimProtStaParams), 0); |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 81 | qdf_mem_set((void *)&psessionEntry->gLimNonGfParams, |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 82 | sizeof(tLimProtStaParams), 0); |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 83 | qdf_mem_set((void *)&psessionEntry->gLimHt20Params, |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 84 | sizeof(tLimProtStaParams), 0); |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 85 | qdf_mem_set((void *)&psessionEntry->gLimLsigTxopParams, |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 86 | sizeof(tLimProtStaParams), 0); |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 87 | qdf_mem_set((void *)&psessionEntry->gLimOlbcParams, |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 88 | sizeof(tLimProtStaParams), 0); |
| 89 | } |
| 90 | |
| 91 | /* |
| 92 | * pe_reset_protection_callback() - resets protection structs so that when an AP |
| 93 | * causing use of protection goes away, corresponding protection bit can be |
| 94 | * reset |
| 95 | * @ptr: pointer to pSessionEntry |
| 96 | * |
| 97 | * This function resets protection structs so that when an AP causing use of |
| 98 | * protection goes away, corresponding protection bit can be reset. This allowes |
| 99 | * protection bits to be reset once legacy overlapping APs are gone. |
| 100 | * |
| 101 | * Return: void |
| 102 | */ |
Jeff Johnson | 9769900 | 2016-10-07 07:32:55 -0700 | [diff] [blame] | 103 | static void pe_reset_protection_callback(void *ptr) |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 104 | { |
| 105 | tpPESession pe_session_entry = (tpPESession)ptr; |
| 106 | tpAniSirGlobal mac_ctx = (tpAniSirGlobal)pe_session_entry->mac_ctx; |
| 107 | int8_t i = 0; |
| 108 | tUpdateBeaconParams beacon_params; |
| 109 | uint16_t current_protection_state = 0; |
| 110 | tpDphHashNode station_hash_node = NULL; |
| 111 | tSirMacHTOperatingMode old_op_mode; |
| 112 | bool bcn_prms_changed = false; |
| 113 | |
| 114 | if (pe_session_entry->valid == false) { |
Nishank Aggarwal | c7c6592 | 2017-03-24 19:56:23 +0530 | [diff] [blame] | 115 | pe_err("session already deleted. exiting timer callback"); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 116 | return; |
| 117 | } |
| 118 | |
Manishekar Chandrasekaran | 9e8c7be | 2016-08-03 14:57:14 +0530 | [diff] [blame] | 119 | /* |
| 120 | * During CAC period, if the callback is triggered, the beacon |
| 121 | * template may get updated. Subsequently if the vdev is not up, the |
| 122 | * vdev would be made up -- which should not happen during the CAC |
| 123 | * period. To avoid this, ignore the protection callback if the session |
| 124 | * is not yet up. |
| 125 | */ |
| 126 | if (!wma_is_vdev_up(pe_session_entry->smeSessionId)) { |
Nishank Aggarwal | c7c6592 | 2017-03-24 19:56:23 +0530 | [diff] [blame] | 127 | pe_err("session is not up yet. exiting timer callback"); |
Manishekar Chandrasekaran | 9e8c7be | 2016-08-03 14:57:14 +0530 | [diff] [blame] | 128 | return; |
| 129 | } |
| 130 | |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 131 | current_protection_state |= |
| 132 | pe_session_entry->gLimOverlap11gParams.protectionEnabled | |
| 133 | pe_session_entry->gLimOverlap11aParams.protectionEnabled << 1 | |
| 134 | pe_session_entry->gLimOverlapHt20Params.protectionEnabled << 2 | |
| 135 | pe_session_entry->gLimOverlapNonGfParams.protectionEnabled << 3 | |
| 136 | pe_session_entry->gLimOlbcParams.protectionEnabled << 4; |
| 137 | |
Nishank Aggarwal | c7c6592 | 2017-03-24 19:56:23 +0530 | [diff] [blame] | 138 | pe_debug("old protection state: 0x%04X, new protection state: 0x%04X", |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 139 | pe_session_entry->old_protection_state, |
| 140 | current_protection_state); |
| 141 | |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 142 | qdf_mem_zero(&pe_session_entry->gLimOverlap11gParams, |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 143 | sizeof(pe_session_entry->gLimOverlap11gParams)); |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 144 | qdf_mem_zero(&pe_session_entry->gLimOverlap11aParams, |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 145 | sizeof(pe_session_entry->gLimOverlap11aParams)); |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 146 | qdf_mem_zero(&pe_session_entry->gLimOverlapHt20Params, |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 147 | sizeof(pe_session_entry->gLimOverlapHt20Params)); |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 148 | qdf_mem_zero(&pe_session_entry->gLimOverlapNonGfParams, |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 149 | sizeof(pe_session_entry->gLimOverlapNonGfParams)); |
| 150 | |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 151 | qdf_mem_zero(&pe_session_entry->gLimOlbcParams, |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 152 | sizeof(pe_session_entry->gLimOlbcParams)); |
| 153 | |
Abhishek Singh | af7e7fa | 2016-08-08 17:59:31 +0530 | [diff] [blame] | 154 | /* |
| 155 | * Do not reset fShortPreamble and beaconInterval, as they |
| 156 | * are not updated. |
| 157 | */ |
| 158 | pe_session_entry->beaconParams.llaCoexist = 0; |
| 159 | pe_session_entry->beaconParams.llbCoexist = 0; |
| 160 | pe_session_entry->beaconParams.llgCoexist = 0; |
| 161 | pe_session_entry->beaconParams.ht20Coexist = 0; |
| 162 | pe_session_entry->beaconParams.llnNonGFCoexist = 0; |
| 163 | pe_session_entry->beaconParams.fRIFSMode = 0; |
| 164 | pe_session_entry->beaconParams.fLsigTXOPProtectionFullSupport = 0; |
| 165 | pe_session_entry->beaconParams.gHTObssMode = 0; |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 166 | |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 167 | qdf_mem_zero(&mac_ctx->lim.gLimOverlap11gParams, |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 168 | sizeof(mac_ctx->lim.gLimOverlap11gParams)); |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 169 | qdf_mem_zero(&mac_ctx->lim.gLimOverlap11aParams, |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 170 | sizeof(mac_ctx->lim.gLimOverlap11aParams)); |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 171 | qdf_mem_zero(&mac_ctx->lim.gLimOverlapHt20Params, |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 172 | sizeof(mac_ctx->lim.gLimOverlapHt20Params)); |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 173 | qdf_mem_zero(&mac_ctx->lim.gLimOverlapNonGfParams, |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 174 | sizeof(mac_ctx->lim.gLimOverlapNonGfParams)); |
| 175 | |
| 176 | old_op_mode = pe_session_entry->htOperMode; |
| 177 | pe_session_entry->htOperMode = eSIR_HT_OP_MODE_PURE; |
Masti, Narayanraddi | 4d8860c | 2016-08-22 15:46:48 +0530 | [diff] [blame] | 178 | mac_ctx->lim.gHTOperMode = eSIR_HT_OP_MODE_PURE; |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 179 | |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 180 | qdf_mem_zero(&beacon_params, sizeof(tUpdateBeaconParams)); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 181 | /* index 0, is self node, peers start from 1 */ |
Anurag Chouhan | fb54ab0 | 2016-02-18 18:00:46 +0530 | [diff] [blame] | 182 | for (i = 1 ; i <= mac_ctx->lim.gLimAssocStaLimit ; i++) { |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 183 | station_hash_node = dph_get_hash_entry(mac_ctx, i, |
| 184 | &pe_session_entry->dph.dphHashTable); |
| 185 | if (NULL == station_hash_node) |
| 186 | continue; |
| 187 | lim_decide_ap_protection(mac_ctx, station_hash_node->staAddr, |
| 188 | &beacon_params, pe_session_entry); |
| 189 | } |
| 190 | |
| 191 | if (pe_session_entry->htOperMode != old_op_mode) |
| 192 | bcn_prms_changed = true; |
| 193 | |
| 194 | if ((current_protection_state != |
| 195 | pe_session_entry->old_protection_state) && |
| 196 | (false == mac_ctx->sap.SapDfsInfo.is_dfs_cac_timer_running)) { |
Nishank Aggarwal | c7c6592 | 2017-03-24 19:56:23 +0530 | [diff] [blame] | 197 | pe_debug("protection changed, update beacon template"); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 198 | /* update beacon fix params and send update to FW */ |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 199 | qdf_mem_zero(&beacon_params, sizeof(tUpdateBeaconParams)); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 200 | beacon_params.bssIdx = pe_session_entry->bssIdx; |
| 201 | beacon_params.fShortPreamble = |
| 202 | pe_session_entry->beaconParams.fShortPreamble; |
| 203 | beacon_params.beaconInterval = |
| 204 | pe_session_entry->beaconParams.beaconInterval; |
| 205 | beacon_params.llaCoexist = |
| 206 | pe_session_entry->beaconParams.llaCoexist; |
| 207 | beacon_params.llbCoexist = |
| 208 | pe_session_entry->beaconParams.llbCoexist; |
| 209 | beacon_params.llgCoexist = |
| 210 | pe_session_entry->beaconParams.llgCoexist; |
| 211 | beacon_params.ht20MhzCoexist = |
| 212 | pe_session_entry->beaconParams.ht20Coexist; |
| 213 | beacon_params.llnNonGFCoexist = |
| 214 | pe_session_entry->beaconParams.llnNonGFCoexist; |
| 215 | beacon_params.fLsigTXOPProtectionFullSupport = |
| 216 | pe_session_entry->beaconParams. |
| 217 | fLsigTXOPProtectionFullSupport; |
| 218 | beacon_params.fRIFSMode = |
| 219 | pe_session_entry->beaconParams.fRIFSMode; |
| 220 | beacon_params.smeSessionId = |
| 221 | pe_session_entry->smeSessionId; |
Selvaraj, Sridhar | dc038ee | 2016-06-24 15:22:14 +0530 | [diff] [blame] | 222 | beacon_params.paramChangeBitmap |= PARAM_llBCOEXIST_CHANGED; |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 223 | bcn_prms_changed = true; |
| 224 | } |
| 225 | |
| 226 | if (bcn_prms_changed) { |
| 227 | sch_set_fixed_beacon_fields(mac_ctx, pe_session_entry); |
| 228 | lim_send_beacon_params(mac_ctx, &beacon_params, pe_session_entry); |
| 229 | } |
| 230 | |
| 231 | pe_session_entry->old_protection_state = current_protection_state; |
Anurag Chouhan | 210db07 | 2016-02-22 18:42:15 +0530 | [diff] [blame] | 232 | if (qdf_mc_timer_start(&pe_session_entry-> |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 233 | protection_fields_reset_timer, |
| 234 | SCH_PROTECTION_RESET_TIME) |
Anurag Chouhan | fb54ab0 | 2016-02-18 18:00:46 +0530 | [diff] [blame] | 235 | != QDF_STATUS_SUCCESS) { |
Nishank Aggarwal | c7c6592 | 2017-03-24 19:56:23 +0530 | [diff] [blame] | 236 | pe_err("cannot create or start protectionFieldsResetTimer"); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 237 | } |
| 238 | } |
| 239 | |
Abhishek Singh | cfb4448 | 2017-03-10 12:42:37 +0530 | [diff] [blame] | 240 | #ifdef WLAN_FEATURE_11W |
| 241 | /** |
| 242 | * pe_init_pmf_comeback_timer: init PMF comeback timer |
| 243 | * @mac_ctx: pointer to global adapter context |
| 244 | * @session: pe session |
| 245 | * @session_id: session ID |
| 246 | * |
| 247 | * Return: void |
| 248 | */ |
| 249 | static void pe_init_pmf_comeback_timer(tpAniSirGlobal mac_ctx, |
| 250 | tpPESession session, uint8_t session_id) |
| 251 | { |
| 252 | QDF_STATUS status; |
| 253 | |
| 254 | session->pmfComebackTimerInfo.pMac = mac_ctx; |
| 255 | session->pmfComebackTimerInfo.sessionID = session_id; |
| 256 | status = qdf_mc_timer_init(&session->pmfComebackTimer, |
| 257 | QDF_TIMER_TYPE_SW, lim_pmf_comeback_timer_callback, |
| 258 | (void *)&session->pmfComebackTimerInfo); |
| 259 | if (!QDF_IS_STATUS_SUCCESS(status)) |
Nishank Aggarwal | c7c6592 | 2017-03-24 19:56:23 +0530 | [diff] [blame] | 260 | pe_err("cannot init pmf comeback timer"); |
Abhishek Singh | cfb4448 | 2017-03-10 12:42:37 +0530 | [diff] [blame] | 261 | } |
| 262 | #else |
| 263 | static inline void |
| 264 | pe_init_pmf_comeback_timer(tpAniSirGlobal mac_ctx, |
| 265 | tpPESession session, uint8_t session_id) |
| 266 | { |
| 267 | } |
| 268 | #endif |
| 269 | |
Sridhar Selvaraj | 8c6f5e8 | 2017-08-21 14:53:46 +0530 | [diff] [blame] | 270 | #ifdef WLAN_FEATURE_FILS_SK |
| 271 | /** |
| 272 | * pe_delete_fils_info: API to delete fils session info |
| 273 | * @session: pe session |
| 274 | * |
| 275 | * Return: void |
| 276 | */ |
Sridhar Selvaraj | 0d5d2c7 | 2017-08-17 17:30:01 +0530 | [diff] [blame] | 277 | void pe_delete_fils_info(tpPESession session) |
Sridhar Selvaraj | 8c6f5e8 | 2017-08-21 14:53:46 +0530 | [diff] [blame] | 278 | { |
| 279 | struct pe_fils_session *fils_info; |
| 280 | |
| 281 | if (!session || (session && !session->valid)) { |
| 282 | QDF_TRACE(QDF_MODULE_ID_PE, QDF_TRACE_LEVEL_DEBUG, |
| 283 | FL("session is not valid")); |
| 284 | return; |
| 285 | } |
| 286 | fils_info = session->fils_info; |
| 287 | if (!fils_info) { |
| 288 | QDF_TRACE(QDF_MODULE_ID_PE, QDF_TRACE_LEVEL_DEBUG, |
| 289 | FL("fils info not found")); |
| 290 | return; |
| 291 | } |
| 292 | if (fils_info->keyname_nai_data) |
| 293 | qdf_mem_free(fils_info->keyname_nai_data); |
| 294 | if (fils_info->fils_erp_reauth_pkt) |
| 295 | qdf_mem_free(fils_info->fils_erp_reauth_pkt); |
Vignesh Viswanathan | c6d1e1c | 2017-09-18 12:32:49 +0530 | [diff] [blame^] | 296 | if (fils_info->fils_rrk) |
| 297 | qdf_mem_free(fils_info->fils_rrk); |
| 298 | if (fils_info->fils_rik) |
| 299 | qdf_mem_free(fils_info->fils_rik); |
Sridhar Selvaraj | 8c6f5e8 | 2017-08-21 14:53:46 +0530 | [diff] [blame] | 300 | if (fils_info->fils_eap_finish_pkt) |
| 301 | qdf_mem_free(fils_info->fils_eap_finish_pkt); |
| 302 | if (fils_info->fils_rmsk) |
| 303 | qdf_mem_free(fils_info->fils_rmsk); |
| 304 | if (fils_info->fils_pmk) |
| 305 | qdf_mem_free(fils_info->fils_pmk); |
| 306 | if (fils_info->auth_info.keyname) |
| 307 | qdf_mem_free(fils_info->auth_info.keyname); |
| 308 | if (fils_info->auth_info.domain_name) |
| 309 | qdf_mem_free(fils_info->auth_info.domain_name); |
Vignesh Viswanathan | a1bb092 | 2017-09-15 12:58:48 +0530 | [diff] [blame] | 310 | if (fils_info->hlp_data) |
| 311 | qdf_mem_free(fils_info->hlp_data); |
Sridhar Selvaraj | 8c6f5e8 | 2017-08-21 14:53:46 +0530 | [diff] [blame] | 312 | qdf_mem_free(fils_info); |
| 313 | session->fils_info = NULL; |
| 314 | } |
| 315 | /** |
| 316 | * pe_init_fils_info: API to initialize fils session info elements to null |
| 317 | * @session: pe session |
| 318 | * |
| 319 | * Return: void |
| 320 | */ |
| 321 | static void pe_init_fils_info(tpPESession session) |
| 322 | { |
| 323 | struct pe_fils_session *fils_info; |
| 324 | |
| 325 | if (!session || (session && !session->valid)) { |
| 326 | QDF_TRACE(QDF_MODULE_ID_PE, QDF_TRACE_LEVEL_DEBUG, |
| 327 | FL("session is not valid")); |
| 328 | return; |
| 329 | } |
| 330 | session->fils_info = qdf_mem_malloc(sizeof(struct pe_fils_session)); |
| 331 | fils_info = session->fils_info; |
| 332 | if (!fils_info) { |
| 333 | QDF_TRACE(QDF_MODULE_ID_PE, QDF_TRACE_LEVEL_DEBUG, |
| 334 | FL("fils info not found")); |
| 335 | return; |
| 336 | } |
| 337 | fils_info->keyname_nai_data = NULL; |
| 338 | fils_info->fils_erp_reauth_pkt = NULL; |
Vignesh Viswanathan | c6d1e1c | 2017-09-18 12:32:49 +0530 | [diff] [blame^] | 339 | fils_info->fils_rrk = NULL; |
| 340 | fils_info->fils_rik = NULL; |
Sridhar Selvaraj | 8c6f5e8 | 2017-08-21 14:53:46 +0530 | [diff] [blame] | 341 | fils_info->fils_eap_finish_pkt = NULL; |
| 342 | fils_info->fils_rmsk = NULL; |
| 343 | fils_info->fils_pmk = NULL; |
| 344 | fils_info->auth_info.keyname = NULL; |
| 345 | fils_info->auth_info.domain_name = NULL; |
| 346 | } |
| 347 | #else |
| 348 | static void pe_delete_fils_info(tpPESession session) { } |
| 349 | static void pe_init_fils_info(tpPESession session) { } |
| 350 | #endif |
| 351 | |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 352 | /** |
Abhishek Singh | 4788860 | 2017-05-10 12:50:50 +0530 | [diff] [blame] | 353 | * lim_get_peer_idxpool_size: get number of peer idx pool size |
| 354 | * @num_sta: Max number of STA |
| 355 | * @bss_type: BSS type |
| 356 | * |
| 357 | * The peer index start from 1 and thus index 0 is not used, so |
| 358 | * add 1 to the max sta. For STA if TDLS is enabled add 2 as |
| 359 | * index 1 is reserved for peer BSS. |
| 360 | * |
| 361 | * Return: number of peer idx pool size |
| 362 | */ |
| 363 | #ifdef FEATURE_WLAN_TDLS |
| 364 | static inline uint8_t |
| 365 | lim_get_peer_idxpool_size(uint16_t num_sta, tSirBssType bss_type) |
| 366 | { |
| 367 | /* |
| 368 | * In station role, index 1 is reserved for peer |
| 369 | * corresponding to AP. For TDLS the index should |
| 370 | * start from 2 |
| 371 | */ |
| 372 | if (bss_type == eSIR_INFRASTRUCTURE_MODE) |
| 373 | return num_sta + 2; |
| 374 | else |
| 375 | return num_sta + 1; |
| 376 | |
| 377 | } |
| 378 | #else |
| 379 | static inline uint8_t |
| 380 | lim_get_peer_idxpool_size(uint16_t num_sta, tSirBssType bss_type) |
| 381 | { |
| 382 | return num_sta + 1; |
| 383 | } |
| 384 | #endif |
| 385 | |
| 386 | /** |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 387 | * pe_create_session() creates a new PE session given the BSSID |
| 388 | * @param pMac: pointer to global adapter context |
| 389 | * @param bssid: BSSID of the new session |
| 390 | * @param sessionId: session ID is returned here, if session is created. |
| 391 | * @param bssType: station or a |
| 392 | * |
| 393 | * This function returns the session context and the session ID if the session |
| 394 | * corresponding to the passed BSSID is found in the PE session table. |
| 395 | * |
| 396 | * Return: tpPESession: pointer to the session context or NULL if session |
| 397 | * can not be created. |
| 398 | */ |
| 399 | |
| 400 | tpPESession |
| 401 | pe_create_session(tpAniSirGlobal pMac, uint8_t *bssid, uint8_t *sessionId, |
| 402 | uint16_t numSta, tSirBssType bssType) |
| 403 | { |
Anurag Chouhan | fb54ab0 | 2016-02-18 18:00:46 +0530 | [diff] [blame] | 404 | QDF_STATUS status; |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 405 | uint8_t i; |
| 406 | tpPESession session_ptr; |
| 407 | for (i = 0; i < pMac->lim.maxBssId; i++) { |
| 408 | /* Find first free room in session table */ |
| 409 | if (pMac->lim.gpSession[i].valid == true) |
| 410 | continue; |
| 411 | break; |
| 412 | } |
| 413 | |
| 414 | if (i == pMac->lim.maxBssId) { |
Nishank Aggarwal | c7c6592 | 2017-03-24 19:56:23 +0530 | [diff] [blame] | 415 | pe_err("Session can't be created. Reached max sessions"); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 416 | return NULL; |
| 417 | } |
| 418 | |
| 419 | session_ptr = &pMac->lim.gpSession[i]; |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 420 | qdf_mem_set((void *)session_ptr, sizeof(tPESession), 0); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 421 | /* Allocate space for Station Table for this session. */ |
| 422 | session_ptr->dph.dphHashTable.pHashTable = |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 423 | qdf_mem_malloc(sizeof(tpDphHashNode) * (numSta + 1)); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 424 | if (NULL == session_ptr->dph.dphHashTable.pHashTable) { |
Nishank Aggarwal | c7c6592 | 2017-03-24 19:56:23 +0530 | [diff] [blame] | 425 | pe_err("memory allocate failed!"); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 426 | return NULL; |
| 427 | } |
| 428 | |
| 429 | session_ptr->dph.dphHashTable.pDphNodeArray = |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 430 | qdf_mem_malloc(sizeof(tDphHashNode) * (numSta + 1)); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 431 | if (NULL == session_ptr->dph.dphHashTable.pDphNodeArray) { |
Nishank Aggarwal | c7c6592 | 2017-03-24 19:56:23 +0530 | [diff] [blame] | 432 | pe_err("memory allocate failed!"); |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 433 | qdf_mem_free(session_ptr->dph.dphHashTable.pHashTable); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 434 | session_ptr->dph.dphHashTable. |
| 435 | pHashTable = NULL; |
| 436 | return NULL; |
| 437 | } |
| 438 | |
Abhishek Singh | 4788860 | 2017-05-10 12:50:50 +0530 | [diff] [blame] | 439 | |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 440 | session_ptr->dph.dphHashTable.size = numSta + 1; |
| 441 | dph_hash_table_class_init(pMac, &session_ptr->dph.dphHashTable); |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 442 | session_ptr->gpLimPeerIdxpool = qdf_mem_malloc( |
Abhishek Singh | 4788860 | 2017-05-10 12:50:50 +0530 | [diff] [blame] | 443 | sizeof(*(session_ptr->gpLimPeerIdxpool)) * |
| 444 | lim_get_peer_idxpool_size(numSta, bssType)); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 445 | if (NULL == session_ptr->gpLimPeerIdxpool) { |
Nishank Aggarwal | c7c6592 | 2017-03-24 19:56:23 +0530 | [diff] [blame] | 446 | pe_err("memory allocate failed!"); |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 447 | qdf_mem_free(session_ptr->dph.dphHashTable.pHashTable); |
| 448 | qdf_mem_free(session_ptr->dph.dphHashTable.pDphNodeArray); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 449 | session_ptr->dph.dphHashTable.pHashTable = NULL; |
| 450 | session_ptr->dph.dphHashTable.pDphNodeArray = NULL; |
| 451 | return NULL; |
| 452 | } |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 453 | session_ptr->freePeerIdxHead = 0; |
| 454 | session_ptr->freePeerIdxTail = 0; |
| 455 | session_ptr->gLimNumOfCurrentSTAs = 0; |
| 456 | /* Copy the BSSID to the session table */ |
| 457 | sir_copy_mac_addr(session_ptr->bssId, bssid); |
Manjunathappa Prakash | 0e6e6b5 | 2016-04-21 11:48:48 -0700 | [diff] [blame] | 458 | if (bssType == eSIR_MONITOR_MODE) |
| 459 | sir_copy_mac_addr(pMac->lim.gpSession[i].selfMacAddr, bssid); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 460 | session_ptr->valid = true; |
| 461 | /* Intialize the SME and MLM states to IDLE */ |
| 462 | session_ptr->limMlmState = eLIM_MLM_IDLE_STATE; |
| 463 | session_ptr->limSmeState = eLIM_SME_IDLE_STATE; |
| 464 | session_ptr->limCurrentAuthType = eSIR_OPEN_SYSTEM; |
| 465 | pe_init_beacon_params(pMac, &pMac->lim.gpSession[i]); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 466 | session_ptr->is11Rconnection = false; |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 467 | #ifdef FEATURE_WLAN_ESE |
| 468 | session_ptr->isESEconnection = false; |
| 469 | #endif |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 470 | session_ptr->isFastTransitionEnabled = false; |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 471 | session_ptr->isFastRoamIniFeatureEnabled = false; |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 472 | *sessionId = i; |
| 473 | session_ptr->gLimPhyMode = WNI_CFG_PHY_MODE_11G; |
| 474 | /* Initialize CB mode variables when session is created */ |
| 475 | session_ptr->htSupportedChannelWidthSet = 0; |
| 476 | session_ptr->htRecommendedTxWidthSet = 0; |
| 477 | session_ptr->htSecondaryChannelOffset = 0; |
| 478 | #ifdef FEATURE_WLAN_TDLS |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 479 | qdf_mem_set(session_ptr->peerAIDBitmap, |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 480 | sizeof(session_ptr->peerAIDBitmap), 0); |
| 481 | session_ptr->tdls_prohibited = false; |
| 482 | session_ptr->tdls_chan_swit_prohibited = false; |
| 483 | #endif |
| 484 | session_ptr->fWaitForProbeRsp = 0; |
| 485 | session_ptr->fIgnoreCapsChange = 0; |
Selvaraj, Sridhar | 5b5a065 | 2017-05-04 11:23:07 +0530 | [diff] [blame] | 486 | session_ptr->ignore_assoc_disallowed = pMac->ignore_assoc_disallowed; |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 487 | |
Nishank Aggarwal | c7c6592 | 2017-03-24 19:56:23 +0530 | [diff] [blame] | 488 | pe_debug("Create a new PE session: %d BSSID: "MAC_ADDRESS_STR" Max No of STA: %d", |
Kapil Gupta | bf4943c | 2016-10-13 12:15:39 +0530 | [diff] [blame] | 489 | *sessionId, MAC_ADDR_ARRAY(bssid), numSta); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 490 | |
Rajeev Kumar | cf835a0 | 2016-04-15 15:01:31 -0700 | [diff] [blame] | 491 | if (eSIR_INFRA_AP_MODE == bssType || eSIR_IBSS_MODE == bssType) { |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 492 | session_ptr->pSchProbeRspTemplate = |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 493 | qdf_mem_malloc(SCH_MAX_PROBE_RESP_SIZE); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 494 | session_ptr->pSchBeaconFrameBegin = |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 495 | qdf_mem_malloc(SCH_MAX_BEACON_SIZE); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 496 | session_ptr->pSchBeaconFrameEnd = |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 497 | qdf_mem_malloc(SCH_MAX_BEACON_SIZE); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 498 | if ((NULL == session_ptr->pSchProbeRspTemplate) |
| 499 | || (NULL == session_ptr->pSchBeaconFrameBegin) |
| 500 | || (NULL == session_ptr->pSchBeaconFrameEnd)) { |
Nishank Aggarwal | c7c6592 | 2017-03-24 19:56:23 +0530 | [diff] [blame] | 501 | pe_err("memory allocate failed!"); |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 502 | qdf_mem_free(session_ptr->dph.dphHashTable.pHashTable); |
| 503 | qdf_mem_free(session_ptr->dph.dphHashTable.pDphNodeArray); |
| 504 | qdf_mem_free(session_ptr->gpLimPeerIdxpool); |
| 505 | qdf_mem_free(session_ptr->pSchProbeRspTemplate); |
| 506 | qdf_mem_free(session_ptr->pSchBeaconFrameBegin); |
| 507 | qdf_mem_free(session_ptr->pSchBeaconFrameEnd); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 508 | |
| 509 | session_ptr->dph.dphHashTable.pHashTable = NULL; |
| 510 | session_ptr->dph.dphHashTable.pDphNodeArray = NULL; |
| 511 | session_ptr->gpLimPeerIdxpool = NULL; |
| 512 | session_ptr->pSchProbeRspTemplate = NULL; |
| 513 | session_ptr->pSchBeaconFrameBegin = NULL; |
| 514 | session_ptr->pSchBeaconFrameEnd = NULL; |
| 515 | return NULL; |
| 516 | } |
| 517 | } |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 518 | if (eSIR_INFRASTRUCTURE_MODE == bssType) |
| 519 | lim_ft_open(pMac, &pMac->lim.gpSession[i]); |
Manjunathappa Prakash | 0e6e6b5 | 2016-04-21 11:48:48 -0700 | [diff] [blame] | 520 | |
| 521 | if (eSIR_MONITOR_MODE == bssType) |
| 522 | lim_ft_open(pMac, &pMac->lim.gpSession[i]); |
| 523 | |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 524 | if (eSIR_INFRA_AP_MODE == bssType) { |
| 525 | session_ptr->old_protection_state = 0; |
| 526 | session_ptr->mac_ctx = (void *)pMac; |
Anurag Chouhan | 210db07 | 2016-02-22 18:42:15 +0530 | [diff] [blame] | 527 | status = qdf_mc_timer_init( |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 528 | &session_ptr->protection_fields_reset_timer, |
Anurag Chouhan | 6d76066 | 2016-02-20 16:05:43 +0530 | [diff] [blame] | 529 | QDF_TIMER_TYPE_SW, pe_reset_protection_callback, |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 530 | (void *)&pMac->lim.gpSession[i]); |
Anurag Chouhan | fb54ab0 | 2016-02-18 18:00:46 +0530 | [diff] [blame] | 531 | if (status == QDF_STATUS_SUCCESS) { |
Anurag Chouhan | 210db07 | 2016-02-22 18:42:15 +0530 | [diff] [blame] | 532 | status = qdf_mc_timer_start( |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 533 | &session_ptr->protection_fields_reset_timer, |
| 534 | SCH_PROTECTION_RESET_TIME); |
| 535 | } |
Anurag Chouhan | fb54ab0 | 2016-02-18 18:00:46 +0530 | [diff] [blame] | 536 | if (status != QDF_STATUS_SUCCESS) |
Nishank Aggarwal | c7c6592 | 2017-03-24 19:56:23 +0530 | [diff] [blame] | 537 | pe_err("cannot create or start protectionFieldsResetTimer"); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 538 | } |
Sridhar Selvaraj | 8c6f5e8 | 2017-08-21 14:53:46 +0530 | [diff] [blame] | 539 | pe_init_fils_info(session_ptr); |
Abhishek Singh | cfb4448 | 2017-03-10 12:42:37 +0530 | [diff] [blame] | 540 | pe_init_pmf_comeback_timer(pMac, session_ptr, *sessionId); |
Tushnim Bhattacharyya | 3d17def | 2017-06-19 11:13:43 -0700 | [diff] [blame] | 541 | session_ptr->ht_client_cnt = 0; |
Naveen Rawat | 6fc3c50 | 2017-09-06 16:14:11 -0700 | [diff] [blame] | 542 | /* following is invalid value since seq number is 12 bit */ |
| 543 | session_ptr->prev_auth_seq_num = 0xFFFF; |
Krishna Kumaar Natarajan | 48de7de | 2015-12-08 14:43:13 -0800 | [diff] [blame] | 544 | |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 545 | return &pMac->lim.gpSession[i]; |
| 546 | } |
| 547 | |
| 548 | /*-------------------------------------------------------------------------- |
| 549 | \brief pe_find_session_by_bssid() - looks up the PE session given the BSSID. |
| 550 | |
| 551 | This function returns the session context and the session ID if the session |
| 552 | corresponding to the given BSSID is found in the PE session table. |
| 553 | |
| 554 | \param pMac - pointer to global adapter context |
| 555 | \param bssid - BSSID of the session |
| 556 | \param sessionId -session ID is returned here, if session is found. |
| 557 | |
| 558 | \return tpPESession - pointer to the session context or NULL if session is not found. |
| 559 | |
| 560 | \sa |
| 561 | --------------------------------------------------------------------------*/ |
| 562 | tpPESession pe_find_session_by_bssid(tpAniSirGlobal pMac, uint8_t *bssid, |
| 563 | uint8_t *sessionId) |
| 564 | { |
| 565 | uint8_t i; |
| 566 | |
| 567 | for (i = 0; i < pMac->lim.maxBssId; i++) { |
| 568 | /* If BSSID matches return corresponding tables address */ |
| 569 | if ((pMac->lim.gpSession[i].valid) |
Anurag Chouhan | fb54ab0 | 2016-02-18 18:00:46 +0530 | [diff] [blame] | 570 | && (sir_compare_mac_addr(pMac->lim.gpSession[i].bssId, |
| 571 | bssid))) { |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 572 | *sessionId = i; |
Anurag Chouhan | fb54ab0 | 2016-02-18 18:00:46 +0530 | [diff] [blame] | 573 | return &pMac->lim.gpSession[i]; |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 574 | } |
| 575 | } |
| 576 | |
Nishank Aggarwal | c7c6592 | 2017-03-24 19:56:23 +0530 | [diff] [blame] | 577 | pe_debug("Session lookup fails for BSSID:"); |
| 578 | lim_print_mac_addr(pMac, bssid, LOGD); |
Anurag Chouhan | fb54ab0 | 2016-02-18 18:00:46 +0530 | [diff] [blame] | 579 | return NULL; |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 580 | |
| 581 | } |
| 582 | |
| 583 | /*-------------------------------------------------------------------------- |
| 584 | \brief pe_find_session_by_bss_idx() - looks up the PE session given the bssIdx. |
| 585 | |
| 586 | This function returns the session context if the session |
| 587 | corresponding to the given bssIdx is found in the PE session table. |
| 588 | \param pMac - pointer to global adapter context |
| 589 | \param bssIdx - bss index of the session |
| 590 | \return tpPESession - pointer to the session context or NULL if session is not found. |
| 591 | \sa |
| 592 | --------------------------------------------------------------------------*/ |
| 593 | tpPESession pe_find_session_by_bss_idx(tpAniSirGlobal pMac, uint8_t bssIdx) |
| 594 | { |
| 595 | uint8_t i; |
| 596 | for (i = 0; i < pMac->lim.maxBssId; i++) { |
| 597 | /* If BSSID matches return corresponding tables address */ |
| 598 | if ((pMac->lim.gpSession[i].valid) |
| 599 | && (pMac->lim.gpSession[i].bssIdx == bssIdx)) { |
| 600 | return &pMac->lim.gpSession[i]; |
| 601 | } |
| 602 | } |
Nishank Aggarwal | c7c6592 | 2017-03-24 19:56:23 +0530 | [diff] [blame] | 603 | pe_debug("Session lookup fails for bssIdx: %d", bssIdx); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 604 | return NULL; |
| 605 | } |
| 606 | |
| 607 | /*-------------------------------------------------------------------------- |
| 608 | \brief pe_find_session_by_session_id() - looks up the PE session given the session ID. |
| 609 | |
| 610 | This function returns the session context if the session |
| 611 | corresponding to the given session ID is found in the PE session table. |
| 612 | |
| 613 | \param pMac - pointer to global adapter context |
| 614 | \param sessionId -session ID for which session context needs to be looked up. |
| 615 | |
| 616 | \return tpPESession - pointer to the session context or NULL if session is not found. |
| 617 | |
| 618 | \sa |
| 619 | --------------------------------------------------------------------------*/ |
Srinivas Girigowda | f326dfe | 2017-08-03 11:28:32 -0700 | [diff] [blame] | 620 | tpPESession pe_find_session_by_session_id(tpAniSirGlobal pMac, |
| 621 | uint8_t sessionId) |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 622 | { |
| 623 | if (sessionId >= pMac->lim.maxBssId) { |
Nishank Aggarwal | c7c6592 | 2017-03-24 19:56:23 +0530 | [diff] [blame] | 624 | pe_err("Invalid sessionId: %d", sessionId); |
Anurag Chouhan | fb54ab0 | 2016-02-18 18:00:46 +0530 | [diff] [blame] | 625 | return NULL; |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 626 | } |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 627 | |
Srinivas Girigowda | f326dfe | 2017-08-03 11:28:32 -0700 | [diff] [blame] | 628 | if (pMac->lim.gpSession[sessionId].valid) |
| 629 | return &pMac->lim.gpSession[sessionId]; |
| 630 | |
| 631 | return NULL; |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 632 | } |
| 633 | |
| 634 | /** |
| 635 | * pe_find_session_by_sta_id() - looks up the PE session given staid. |
| 636 | * @mac_ctx: pointer to global adapter context |
| 637 | * @staid: StaId of the session |
| 638 | * @session_id: session ID is returned here, if session is found. |
| 639 | * |
| 640 | * This function returns the session context and the session ID if the session |
| 641 | * corresponding to the given StaId is found in the PE session table. |
| 642 | * |
| 643 | * Return: session pointer |
| 644 | */ |
| 645 | tpPESession |
| 646 | pe_find_session_by_sta_id(tpAniSirGlobal mac_ctx, |
| 647 | uint8_t staid, |
| 648 | uint8_t *session_id) |
| 649 | { |
| 650 | uint8_t i, j; |
| 651 | tpPESession session_ptr; |
| 652 | dphHashTableClass *dph_ptr; |
| 653 | |
| 654 | for (i = 0; i < mac_ctx->lim.maxBssId; i++) { |
| 655 | if (!mac_ctx->lim.gpSession[i].valid) |
| 656 | continue; |
| 657 | session_ptr = &mac_ctx->lim.gpSession[i]; |
| 658 | dph_ptr = &session_ptr->dph.dphHashTable; |
| 659 | for (j = 0; j < dph_ptr->size; j++) { |
| 660 | if (dph_ptr->pDphNodeArray[j].valid |
| 661 | && dph_ptr->pDphNodeArray[j].added |
| 662 | && staid == dph_ptr->pDphNodeArray[j].staIndex) { |
| 663 | *session_id = i; |
| 664 | return session_ptr; |
| 665 | } |
| 666 | } |
| 667 | } |
| 668 | |
Nishank Aggarwal | c7c6592 | 2017-03-24 19:56:23 +0530 | [diff] [blame] | 669 | pe_debug("Session lookup fails for StaId: %d", staid); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 670 | return NULL; |
| 671 | } |
| 672 | |
| 673 | /** |
| 674 | * pe_delete_session() - deletes the PE session given the session ID. |
| 675 | * @mac_ctx: pointer to global adapter context |
| 676 | * @session: session to be deleted. |
| 677 | * |
| 678 | * Deletes the given PE session |
| 679 | * |
| 680 | * Return: void |
| 681 | */ |
| 682 | void pe_delete_session(tpAniSirGlobal mac_ctx, tpPESession session) |
| 683 | { |
| 684 | uint16_t i = 0; |
| 685 | uint16_t n; |
| 686 | TX_TIMER *timer_ptr; |
| 687 | |
Krishna Kumaar Natarajan | 03cc386 | 2015-12-15 17:51:19 -0800 | [diff] [blame] | 688 | if (!session || (session && !session->valid)) { |
Nishank Aggarwal | c7c6592 | 2017-03-24 19:56:23 +0530 | [diff] [blame] | 689 | pe_err("session is not valid"); |
Krishna Kumaar Natarajan | 03cc386 | 2015-12-15 17:51:19 -0800 | [diff] [blame] | 690 | return; |
| 691 | } |
| 692 | |
Nishank Aggarwal | c7c6592 | 2017-03-24 19:56:23 +0530 | [diff] [blame] | 693 | pe_debug("Trying to delete PE session: %d Opmode: %d BssIdx: %d BSSID: "MAC_ADDRESS_STR, |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 694 | session->peSessionId, session->operMode, |
| 695 | session->bssIdx, |
| 696 | MAC_ADDR_ARRAY(session->bssId)); |
| 697 | for (n = 0; n < (mac_ctx->lim.maxStation + 1); n++) { |
| 698 | timer_ptr = &mac_ctx->lim.limTimers.gpLimCnfWaitTimer[n]; |
| 699 | if (session->peSessionId == timer_ptr->sessionId) |
| 700 | if (true == tx_timer_running(timer_ptr)) |
| 701 | tx_timer_deactivate(timer_ptr); |
| 702 | } |
| 703 | |
Karthick S | 7a17a71 | 2015-10-14 16:12:48 +0530 | [diff] [blame] | 704 | if (LIM_IS_AP_ROLE(session)) { |
Anurag Chouhan | 210db07 | 2016-02-22 18:42:15 +0530 | [diff] [blame] | 705 | qdf_mc_timer_stop(&session->protection_fields_reset_timer); |
| 706 | qdf_mc_timer_destroy(&session->protection_fields_reset_timer); |
Karthick S | 7a17a71 | 2015-10-14 16:12:48 +0530 | [diff] [blame] | 707 | } |
| 708 | |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 709 | /* Delete FT related information */ |
| 710 | lim_ft_cleanup(mac_ctx, session); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 711 | if (session->pLimStartBssReq != NULL) { |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 712 | qdf_mem_free(session->pLimStartBssReq); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 713 | session->pLimStartBssReq = NULL; |
| 714 | } |
| 715 | |
| 716 | if (session->pLimJoinReq != NULL) { |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 717 | qdf_mem_free(session->pLimJoinReq); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 718 | session->pLimJoinReq = NULL; |
| 719 | } |
| 720 | |
| 721 | if (session->pLimReAssocReq != NULL) { |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 722 | qdf_mem_free(session->pLimReAssocReq); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 723 | session->pLimReAssocReq = NULL; |
| 724 | } |
| 725 | |
| 726 | if (session->pLimMlmJoinReq != NULL) { |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 727 | qdf_mem_free(session->pLimMlmJoinReq); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 728 | session->pLimMlmJoinReq = NULL; |
| 729 | } |
| 730 | |
| 731 | if (session->dph.dphHashTable.pHashTable != NULL) { |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 732 | qdf_mem_free(session->dph.dphHashTable.pHashTable); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 733 | session->dph.dphHashTable.pHashTable = NULL; |
| 734 | } |
| 735 | |
| 736 | if (session->dph.dphHashTable.pDphNodeArray != NULL) { |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 737 | qdf_mem_free(session->dph.dphHashTable.pDphNodeArray); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 738 | session->dph.dphHashTable.pDphNodeArray = NULL; |
| 739 | } |
| 740 | |
| 741 | if (session->gpLimPeerIdxpool != NULL) { |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 742 | qdf_mem_free(session->gpLimPeerIdxpool); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 743 | session->gpLimPeerIdxpool = NULL; |
| 744 | } |
| 745 | |
| 746 | if (session->beacon != NULL) { |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 747 | qdf_mem_free(session->beacon); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 748 | session->beacon = NULL; |
Sreelakshmi Konamki | 3b8ba61 | 2015-12-02 18:13:22 +0530 | [diff] [blame] | 749 | session->bcnLen = 0; |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 750 | } |
| 751 | |
| 752 | if (session->assocReq != NULL) { |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 753 | qdf_mem_free(session->assocReq); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 754 | session->assocReq = NULL; |
Sreelakshmi Konamki | 3b8ba61 | 2015-12-02 18:13:22 +0530 | [diff] [blame] | 755 | session->assocReqLen = 0; |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 756 | } |
| 757 | |
| 758 | if (session->assocRsp != NULL) { |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 759 | qdf_mem_free(session->assocRsp); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 760 | session->assocRsp = NULL; |
Sreelakshmi Konamki | 3b8ba61 | 2015-12-02 18:13:22 +0530 | [diff] [blame] | 761 | session->assocRspLen = 0; |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 762 | } |
| 763 | |
| 764 | if (session->parsedAssocReq != NULL) { |
| 765 | tpSirAssocReq tmp_ptr = NULL; |
| 766 | /* Cleanup the individual allocation first */ |
| 767 | for (i = 0; i < session->dph.dphHashTable.size; i++) { |
| 768 | if (session->parsedAssocReq[i] == NULL) |
| 769 | continue; |
| 770 | tmp_ptr = ((tpSirAssocReq) |
| 771 | (session->parsedAssocReq[i])); |
| 772 | if (tmp_ptr->assocReqFrame) { |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 773 | qdf_mem_free(tmp_ptr->assocReqFrame); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 774 | tmp_ptr->assocReqFrame = NULL; |
| 775 | tmp_ptr->assocReqFrameLength = 0; |
| 776 | } |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 777 | qdf_mem_free(session->parsedAssocReq[i]); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 778 | session->parsedAssocReq[i] = NULL; |
| 779 | } |
| 780 | /* Cleanup the whole block */ |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 781 | qdf_mem_free(session->parsedAssocReq); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 782 | session->parsedAssocReq = NULL; |
| 783 | } |
| 784 | if (NULL != session->limAssocResponseData) { |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 785 | qdf_mem_free(session->limAssocResponseData); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 786 | session->limAssocResponseData = NULL; |
| 787 | } |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 788 | if (NULL != session->pLimMlmReassocRetryReq) { |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 789 | qdf_mem_free(session->pLimMlmReassocRetryReq); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 790 | session->pLimMlmReassocRetryReq = NULL; |
| 791 | } |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 792 | if (NULL != session->pLimMlmReassocReq) { |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 793 | qdf_mem_free(session->pLimMlmReassocReq); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 794 | session->pLimMlmReassocReq = NULL; |
| 795 | } |
| 796 | |
| 797 | if (NULL != session->pSchProbeRspTemplate) { |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 798 | qdf_mem_free(session->pSchProbeRspTemplate); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 799 | session->pSchProbeRspTemplate = NULL; |
| 800 | } |
| 801 | |
| 802 | if (NULL != session->pSchBeaconFrameBegin) { |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 803 | qdf_mem_free(session->pSchBeaconFrameBegin); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 804 | session->pSchBeaconFrameBegin = NULL; |
| 805 | } |
| 806 | |
| 807 | if (NULL != session->pSchBeaconFrameEnd) { |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 808 | qdf_mem_free(session->pSchBeaconFrameEnd); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 809 | session->pSchBeaconFrameEnd = NULL; |
| 810 | } |
| 811 | |
| 812 | /* Must free the buffer before peSession invalid */ |
| 813 | if (NULL != session->addIeParams.probeRespData_buff) { |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 814 | qdf_mem_free(session->addIeParams.probeRespData_buff); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 815 | session->addIeParams.probeRespData_buff = NULL; |
| 816 | session->addIeParams.probeRespDataLen = 0; |
| 817 | } |
| 818 | if (NULL != session->addIeParams.assocRespData_buff) { |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 819 | qdf_mem_free(session->addIeParams.assocRespData_buff); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 820 | session->addIeParams.assocRespData_buff = NULL; |
| 821 | session->addIeParams.assocRespDataLen = 0; |
| 822 | } |
| 823 | if (NULL != session->addIeParams.probeRespBCNData_buff) { |
Anurag Chouhan | 600c3a0 | 2016-03-01 10:33:54 +0530 | [diff] [blame] | 824 | qdf_mem_free(session->addIeParams.probeRespBCNData_buff); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 825 | session->addIeParams.probeRespBCNData_buff = NULL; |
| 826 | session->addIeParams.probeRespBCNDataLen = 0; |
| 827 | } |
| 828 | #ifdef WLAN_FEATURE_11W |
Anurag Chouhan | 210db07 | 2016-02-22 18:42:15 +0530 | [diff] [blame] | 829 | if (QDF_TIMER_STATE_RUNNING == |
| 830 | qdf_mc_timer_get_current_state(&session->pmfComebackTimer)) |
| 831 | qdf_mc_timer_stop(&session->pmfComebackTimer); |
| 832 | qdf_mc_timer_destroy(&session->pmfComebackTimer); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 833 | #endif |
Sridhar Selvaraj | 8c6f5e8 | 2017-08-21 14:53:46 +0530 | [diff] [blame] | 834 | pe_delete_fils_info(session); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 835 | session->valid = false; |
| 836 | |
Kondabattini, Ganesh | e4f18e0 | 2016-09-13 13:01:22 +0530 | [diff] [blame] | 837 | if (session->access_policy_vendor_ie) |
| 838 | qdf_mem_free(session->access_policy_vendor_ie); |
| 839 | |
| 840 | session->access_policy_vendor_ie = NULL; |
| 841 | |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 842 | if (LIM_IS_AP_ROLE(session)) |
| 843 | lim_check_and_reset_protection_params(mac_ctx); |
| 844 | |
| 845 | return; |
| 846 | } |
| 847 | |
| 848 | /*-------------------------------------------------------------------------- |
| 849 | \brief pe_find_session_by_peer_sta() - looks up the PE session given the Station Address. |
| 850 | |
| 851 | This function returns the session context and the session ID if the session |
| 852 | corresponding to the given station address is found in the PE session table. |
| 853 | |
| 854 | \param pMac - pointer to global adapter context |
| 855 | \param sa - Peer STA Address of the session |
| 856 | \param sessionId -session ID is returned here, if session is found. |
| 857 | |
| 858 | \return tpPESession - pointer to the session context or NULL if session is not found. |
| 859 | |
| 860 | \sa |
| 861 | --------------------------------------------------------------------------*/ |
| 862 | |
| 863 | tpPESession pe_find_session_by_peer_sta(tpAniSirGlobal pMac, uint8_t *sa, |
| 864 | uint8_t *sessionId) |
| 865 | { |
| 866 | uint8_t i; |
| 867 | tpDphHashNode pSta; |
| 868 | uint16_t aid; |
| 869 | |
| 870 | for (i = 0; i < pMac->lim.maxBssId; i++) { |
| 871 | if ((pMac->lim.gpSession[i].valid)) { |
| 872 | pSta = |
| 873 | dph_lookup_hash_entry(pMac, sa, &aid, |
| 874 | &pMac->lim.gpSession[i].dph. |
| 875 | dphHashTable); |
| 876 | if (pSta != NULL) { |
| 877 | *sessionId = i; |
| 878 | return &pMac->lim.gpSession[i]; |
| 879 | } |
| 880 | } |
| 881 | } |
| 882 | |
Nishank Aggarwal | c7c6592 | 2017-03-24 19:56:23 +0530 | [diff] [blame] | 883 | pe_debug("Session lookup fails for Peer StaId:"); |
| 884 | lim_print_mac_addr(pMac, sa, LOGD); |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 885 | return NULL; |
| 886 | } |
| 887 | |
| 888 | /** |
| 889 | * pe_find_session_by_sme_session_id() - looks up the PE session for given sme |
| 890 | * session id |
| 891 | * @mac_ctx: pointer to global adapter context |
| 892 | * @sme_session_id: sme session id |
| 893 | * |
| 894 | * looks up the PE session for given sme session id |
| 895 | * |
| 896 | * Return: pe session entry for given sme session if found else NULL |
| 897 | */ |
| 898 | tpPESession pe_find_session_by_sme_session_id(tpAniSirGlobal mac_ctx, |
| 899 | uint8_t sme_session_id) |
| 900 | { |
| 901 | uint8_t i; |
Srinivas Girigowda | 2b5d47c | 2017-03-29 00:28:46 -0700 | [diff] [blame] | 902 | |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 903 | for (i = 0; i < mac_ctx->lim.maxBssId; i++) { |
| 904 | if ((mac_ctx->lim.gpSession[i].valid) && |
| 905 | (mac_ctx->lim.gpSession[i].smeSessionId == |
| 906 | sme_session_id)) { |
| 907 | return &mac_ctx->lim.gpSession[i]; |
| 908 | } |
| 909 | } |
Prakash Dhavali | 7090c5f | 2015-11-02 17:55:19 -0800 | [diff] [blame] | 910 | return NULL; |
| 911 | } |
| 912 | |
| 913 | /** |
| 914 | * pe_get_active_session_count() - function to return active pe session count |
| 915 | * |
| 916 | * @mac_ctx: pointer to global mac structure |
| 917 | * |
| 918 | * returns number of active pe session count |
| 919 | * |
| 920 | * Return: 0 if there are no active sessions else return number of active |
| 921 | * sessions |
| 922 | */ |
| 923 | uint8_t pe_get_active_session_count(tpAniSirGlobal mac_ctx) |
| 924 | { |
| 925 | uint8_t i, active_session_count = 0; |
| 926 | |
| 927 | for (i = 0; i < mac_ctx->lim.maxBssId; i++) |
| 928 | if (mac_ctx->lim.gpSession[i].valid) |
| 929 | active_session_count++; |
| 930 | |
| 931 | return active_session_count; |
| 932 | } |