| /* |
| * Copyright (c) 2011-2016 The Linux Foundation. All rights reserved. |
| * |
| * Previously licensed under the ISC license by Qualcomm Atheros, Inc. |
| * |
| * |
| * Permission to use, copy, modify, and/or distribute this software for |
| * any purpose with or without fee is hereby granted, provided that the |
| * above copyright notice and this permission notice appear in all |
| * copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL |
| * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE |
| * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL |
| * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
| * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| * PERFORMANCE OF THIS SOFTWARE. |
| */ |
| |
| /* |
| * This file was originally distributed by Qualcomm Atheros, Inc. |
| * under proprietary terms before Copyright ownership was assigned |
| * to the Linux Foundation. |
| */ |
| |
| #include "cds_api.h" |
| #include "wni_cfg.h" |
| #include "ani_global.h" |
| #include "sir_api.h" |
| #include "sir_params.h" |
| #include "cfg_api.h" |
| |
| #include "sch_api.h" |
| #include "utils_api.h" |
| #include "lim_utils.h" |
| #include "lim_assoc_utils.h" |
| #include "lim_prop_exts_utils.h" |
| #include "lim_security_utils.h" |
| #include "lim_send_messages.h" |
| #include "lim_send_messages.h" |
| #include "lim_session_utils.h" |
| #include <lim_ft.h> |
| #ifdef FEATURE_WLAN_DIAG_SUPPORT_LIM |
| #include "host_diag_core_log.h" |
| #endif |
| #include "wma_if.h" |
| |
| static void lim_process_mlm_start_req(tpAniSirGlobal, uint32_t *); |
| static void lim_process_mlm_join_req(tpAniSirGlobal, uint32_t *); |
| static void lim_process_mlm_auth_req(tpAniSirGlobal, uint32_t *); |
| static void lim_process_mlm_assoc_req(tpAniSirGlobal, uint32_t *); |
| static void lim_process_mlm_disassoc_req(tpAniSirGlobal, uint32_t *); |
| static void lim_process_mlm_deauth_req(tpAniSirGlobal, uint32_t *); |
| static void lim_process_mlm_set_keys_req(tpAniSirGlobal, uint32_t *); |
| |
| /* MLM Timeout event handler templates */ |
| static void lim_process_periodic_probe_req_timer(tpAniSirGlobal mac_ctx); |
| static void lim_process_join_failure_timeout(tpAniSirGlobal); |
| static void lim_process_auth_failure_timeout(tpAniSirGlobal); |
| static void lim_process_auth_rsp_timeout(tpAniSirGlobal, uint32_t); |
| static void lim_process_assoc_failure_timeout(tpAniSirGlobal, uint32_t); |
| static void lim_process_periodic_join_probe_req_timer(tpAniSirGlobal); |
| static void lim_process_auth_retry_timer(tpAniSirGlobal); |
| |
| /** |
| * lim_process_mlm_req_messages() - process mlm request messages |
| * @mac_ctx: global MAC context |
| * @msg: mlm request message |
| * |
| * This function is called by lim_post_mlm_message(). This |
| * function handles MLM primitives invoked by SME. |
| * Depending on the message type, corresponding function will be |
| * called. |
| * ASSUMPTIONS: |
| * 1. Upon receiving Beacon in WT_JOIN_STATE, MLM module invokes |
| * APIs exposed by Beacon Processing module for setting parameters |
| * at MAC hardware. |
| * 2. If attempt to Reassociate with an AP fails, link with current |
| * AP is restored back. |
| * |
| * Return: None |
| */ |
| void lim_process_mlm_req_messages(tpAniSirGlobal mac_ctx, tpSirMsgQ msg) |
| { |
| switch (msg->type) { |
| case LIM_MLM_START_REQ: |
| lim_process_mlm_start_req(mac_ctx, msg->bodyptr); |
| break; |
| case LIM_MLM_JOIN_REQ: |
| lim_process_mlm_join_req(mac_ctx, msg->bodyptr); |
| break; |
| case LIM_MLM_AUTH_REQ: |
| lim_process_mlm_auth_req(mac_ctx, msg->bodyptr); |
| break; |
| case LIM_MLM_ASSOC_REQ: |
| lim_process_mlm_assoc_req(mac_ctx, msg->bodyptr); |
| break; |
| case LIM_MLM_REASSOC_REQ: |
| lim_process_mlm_reassoc_req(mac_ctx, msg->bodyptr); |
| break; |
| case LIM_MLM_DISASSOC_REQ: |
| lim_process_mlm_disassoc_req(mac_ctx, msg->bodyptr); |
| break; |
| case LIM_MLM_DEAUTH_REQ: |
| lim_process_mlm_deauth_req(mac_ctx, msg->bodyptr); |
| break; |
| case LIM_MLM_SETKEYS_REQ: |
| lim_process_mlm_set_keys_req(mac_ctx, msg->bodyptr); |
| break; |
| case SIR_LIM_PERIODIC_PROBE_REQ_TIMEOUT: |
| lim_process_periodic_probe_req_timer(mac_ctx); |
| break; |
| case SIR_LIM_JOIN_FAIL_TIMEOUT: |
| lim_process_join_failure_timeout(mac_ctx); |
| break; |
| case SIR_LIM_PERIODIC_JOIN_PROBE_REQ_TIMEOUT: |
| lim_process_periodic_join_probe_req_timer(mac_ctx); |
| break; |
| case SIR_LIM_AUTH_FAIL_TIMEOUT: |
| lim_process_auth_failure_timeout(mac_ctx); |
| break; |
| case SIR_LIM_AUTH_RSP_TIMEOUT: |
| lim_process_auth_rsp_timeout(mac_ctx, msg->bodyval); |
| break; |
| case SIR_LIM_ASSOC_FAIL_TIMEOUT: |
| lim_process_assoc_failure_timeout(mac_ctx, msg->bodyval); |
| break; |
| case SIR_LIM_FT_PREAUTH_RSP_TIMEOUT: |
| lim_process_ft_preauth_rsp_timeout(mac_ctx); |
| break; |
| case SIR_LIM_REMAIN_CHN_TIMEOUT: |
| lim_process_remain_on_chn_timeout(mac_ctx); |
| break; |
| case SIR_LIM_INSERT_SINGLESHOT_NOA_TIMEOUT: |
| lim_process_insert_single_shot_noa_timeout(mac_ctx); |
| break; |
| case SIR_LIM_CONVERT_ACTIVE_CHANNEL_TO_PASSIVE: |
| lim_convert_active_channel_to_passive_channel(mac_ctx); |
| break; |
| case SIR_LIM_DISASSOC_ACK_TIMEOUT: |
| lim_process_disassoc_ack_timeout(mac_ctx); |
| break; |
| case SIR_LIM_DEAUTH_ACK_TIMEOUT: |
| lim_process_deauth_ack_timeout(mac_ctx); |
| break; |
| case SIR_LIM_AUTH_RETRY_TIMEOUT: |
| lim_process_auth_retry_timer(mac_ctx); |
| break; |
| case LIM_MLM_TSPEC_REQ: |
| default: |
| break; |
| } /* switch (msg->type) */ |
| } |
| |
| /* WLAN_SUSPEND_LINK Related */ |
| |
| /** |
| * lim_is_link_suspended()- check if link is suspended |
| * @mac_ctx: global MAC context |
| * |
| * This function returns is link is suspended or not. |
| * Since Suspend link uses init scan, it just returns |
| * gLimSystemInScanLearnMode flag. |
| * |
| * Return: uint8_t(gLimSystemInScanLearnMode flag) |
| */ |
| uint8_t lim_is_link_suspended(tpAniSirGlobal mac_ctx) |
| { |
| return mac_ctx->lim.gLimSystemInScanLearnMode; |
| } |
| |
| /** |
| * lim_change_channel_with_callback() - change channel and register callback |
| * @mac_ctx: global MAC context |
| * @new_chan: new channel to switch |
| * @callback: Callback function |
| * @cbdata: callback data |
| * @session_entry: PE session pointer |
| * |
| * This function is called to change channel and perform off channel operation |
| * if required. The caller registers a callback to be called at the end of the |
| * channel change. |
| * |
| * Return: None |
| */ |
| void |
| lim_change_channel_with_callback(tpAniSirGlobal mac_ctx, uint8_t new_chan, |
| CHANGE_CHANNEL_CALLBACK callback, |
| uint32_t *cbdata, tpPESession session_entry) |
| { |
| /* Sanity checks for the current and new channel */ |
| lim_log(mac_ctx, LOG1, FL("Switching channel to %d"), new_chan); |
| session_entry->channelChangeReasonCode = |
| LIM_SWITCH_CHANNEL_OPERATION; |
| |
| mac_ctx->lim.gpchangeChannelCallback = callback; |
| mac_ctx->lim.gpchangeChannelData = cbdata; |
| |
| lim_send_switch_chnl_params(mac_ctx, new_chan, 0, 0, |
| CH_WIDTH_20MHZ, session_entry->maxTxPower, |
| session_entry->peSessionId, false); |
| |
| return; |
| } |
| |
| /** |
| * lim_covert_channel_scan_type() - switch between ACTIVE and PASSIVE scan type |
| * @mac_ctx: global MAC context |
| * @chan_num: channel number to change the scan type |
| * @passive_to_active: flag to indicate if switch allowed |
| * |
| * This function is called to get the list, |
| * change the channel type and set again. |
| * NOTE: If a channel is ACTIVE, this function will make it as PASSIVE |
| * If a channel is PASSIVE, this fucntion will make it as ACTIVE |
| * |
| * Return: None |
| */ |
| |
| void lim_covert_channel_scan_type(tpAniSirGlobal mac_ctx, uint8_t chan_num, |
| bool passive_to_active) |
| { |
| |
| uint32_t i; |
| uint8_t chan_pair[WNI_CFG_SCAN_CONTROL_LIST_LEN]; |
| uint32_t len = WNI_CFG_SCAN_CONTROL_LIST_LEN; |
| tSirRetStatus status; |
| |
| status = wlan_cfg_get_str(mac_ctx, WNI_CFG_SCAN_CONTROL_LIST, |
| chan_pair, &len); |
| if (eSIR_SUCCESS != status) { |
| lim_log(mac_ctx, LOGE, FL("Unable to get scan control list")); |
| return; |
| } |
| if (len > WNI_CFG_SCAN_CONTROL_LIST_LEN) { |
| lim_log(mac_ctx, LOGE, |
| FL("Invalid scan control list length:%d"), len); |
| return; |
| } |
| for (i = 0; (i + 1) < len; i += 2) { |
| if (chan_pair[i] != chan_num) /* skip this channel */ |
| continue; |
| if ((eSIR_PASSIVE_SCAN == chan_pair[i + 1]) && |
| true == passive_to_active) { |
| lim_log(mac_ctx, LOG1, FL |
| ("Channel %d changed from Passive to Active"), |
| chan_num); |
| chan_pair[i + 1] = eSIR_ACTIVE_SCAN; |
| break; |
| } |
| if ((eSIR_ACTIVE_SCAN == chan_pair[i + 1]) && |
| false == passive_to_active) { |
| lim_log(mac_ctx, LOG1, FL |
| ("Channel %d changed from Active to Passive"), |
| chan_num); |
| chan_pair[i + 1] = eSIR_PASSIVE_SCAN; |
| break; |
| } |
| } |
| |
| cfg_set_str_notify(mac_ctx, WNI_CFG_SCAN_CONTROL_LIST, |
| (uint8_t *) chan_pair, len, false); |
| return; |
| } |
| |
| /** |
| * lim_set_dfs_channel_list() - convert dfs channel list to active channel list |
| * @mac_ctx: global MAC context. |
| * @chan_num: channel number |
| * @dfs_ch_list: list of DFS channels |
| * |
| * This function is called to convert DFS channel list to active channel list |
| * when any beacon is present on that channel. This function store time for |
| * passive channels which help to know that for how much time channel has been |
| * passive. |
| * |
| * NOTE: If a channel is ACTIVE, it won't store any time |
| * If a channel is PAssive, it will store time as timestamp |
| * |
| * Return: None |
| */ |
| void lim_set_dfs_channel_list(tpAniSirGlobal mac_ctx, uint8_t chan_num, |
| tSirDFSChannelList *dfs_ch_list) |
| { |
| bool pass_to_active = true; |
| |
| if (!((1 <= chan_num) && (165 >= chan_num))) { |
| lim_log(mac_ctx, LOGE, FL("Invalid Channel: %d"), chan_num); |
| return; |
| } |
| |
| if (true == lim_isconnected_on_dfs_channel(chan_num)) { |
| if (dfs_ch_list->timeStamp[chan_num] == 0) { |
| /* |
| * Received first beacon; |
| * Convert DFS channel to Active channel. |
| */ |
| lim_log(mac_ctx, LOG1, |
| FL("Received first beacon on DFS channel: %d"), |
| chan_num); |
| lim_covert_channel_scan_type(mac_ctx, chan_num, |
| pass_to_active); |
| } |
| dfs_ch_list->timeStamp[chan_num] = |
| qdf_mc_timer_get_system_time(); |
| } else { |
| return; |
| } |
| |
| if (!tx_timer_running |
| (&mac_ctx->lim.limTimers.gLimActiveToPassiveChannelTimer)) { |
| tx_timer_activate( |
| &mac_ctx->lim.limTimers.gLimActiveToPassiveChannelTimer); |
| } |
| |
| return; |
| } |
| |
| /** |
| * lim_restore_pre_scan_state() - restore HW state prior to scan |
| * |
| * @mac_ctx: global MAC context |
| * |
| * This function is called by lim_continue_channel_scan() |
| * to restore HW state prior to entering 'scan state' |
| * |
| * Return: None |
| */ |
| void lim_restore_pre_scan_state(tpAniSirGlobal mac_ctx) |
| { |
| /* Deactivate MIN/MAX channel timers if running */ |
| lim_deactivate_and_change_timer(mac_ctx, eLIM_MIN_CHANNEL_TIMER); |
| lim_deactivate_and_change_timer(mac_ctx, eLIM_MAX_CHANNEL_TIMER); |
| |
| mac_ctx->lim.gLimSystemInScanLearnMode = 0; |
| lim_log(mac_ctx, LOG1, FL("Scan ended, took %llu tu"), |
| (tx_time_get() - mac_ctx->lim.scanStartTime)); |
| } |
| |
| /** |
| * mlm_add_sta() - MLM add sta |
| * @mac_ctx: global MAC context |
| * @sta_param: Add sta params |
| * @bssid: BSSID |
| * @ht_capable: HT capability |
| * @session_entry: PE session entry |
| * |
| * This function is called to update station parameters |
| * |
| * Return: None |
| */ |
| static void mlm_add_sta(tpAniSirGlobal mac_ctx, tpAddStaParams sta_param, |
| uint8_t *bssid, uint8_t ht_capable, tpPESession session_entry) |
| { |
| uint32_t val; |
| uint32_t self_dot11mode = 0; |
| |
| wlan_cfg_get_int(mac_ctx, WNI_CFG_DOT11_MODE, &self_dot11mode); |
| sta_param->staType = STA_ENTRY_SELF; /* Identifying self */ |
| |
| qdf_mem_copy(sta_param->bssId, bssid, sizeof(tSirMacAddr)); |
| qdf_mem_copy(sta_param->staMac, session_entry->selfMacAddr, |
| sizeof(tSirMacAddr)); |
| |
| /* Configuration related parameters to be changed to support BT-AMP */ |
| |
| if (eSIR_SUCCESS != wlan_cfg_get_int(mac_ctx, WNI_CFG_LISTEN_INTERVAL, |
| &val)) |
| lim_log(mac_ctx, LOGP, FL("Couldn't get LISTEN_INTERVAL")); |
| sta_param->listenInterval = (uint16_t) val; |
| |
| if (eSIR_SUCCESS != wlan_cfg_get_int(mac_ctx, WNI_CFG_SHORT_PREAMBLE, |
| &val)) |
| lim_log(mac_ctx, LOGP, FL("Couldn't get SHORT_PREAMBLE")); |
| sta_param->shortPreambleSupported = (uint8_t) val; |
| |
| sta_param->assocId = 0; /* Is SMAC OK with this? */ |
| sta_param->wmmEnabled = 0; |
| sta_param->uAPSD = 0; |
| sta_param->maxSPLen = 0; |
| sta_param->us32MaxAmpduDuration = 0; |
| sta_param->maxAmpduSize = 0; /* 0: 8k, 1: 16k,2: 32k,3: 64k, 4:128k */ |
| |
| /* For Self STA get the LDPC capability from config.ini */ |
| sta_param->htLdpcCapable = |
| (session_entry->txLdpcIniFeatureEnabled & 0x01); |
| sta_param->vhtLdpcCapable = |
| ((session_entry->txLdpcIniFeatureEnabled >> 1) & 0x01); |
| |
| if (IS_DOT11_MODE_HT(session_entry->dot11mode)) { |
| sta_param->htCapable = ht_capable; |
| sta_param->greenFieldCapable = |
| lim_get_ht_capability(mac_ctx, eHT_GREENFIELD, |
| session_entry); |
| sta_param->ch_width = |
| lim_get_ht_capability(mac_ctx, |
| eHT_SUPPORTED_CHANNEL_WIDTH_SET, session_entry); |
| sta_param->mimoPS = |
| (tSirMacHTMIMOPowerSaveState)lim_get_ht_capability( |
| mac_ctx, eHT_MIMO_POWER_SAVE, session_entry); |
| sta_param->rifsMode = |
| lim_get_ht_capability(mac_ctx, eHT_RIFS_MODE, |
| session_entry); |
| sta_param->lsigTxopProtection = |
| lim_get_ht_capability(mac_ctx, eHT_LSIG_TXOP_PROTECTION, |
| session_entry); |
| sta_param->maxAmpduDensity = |
| lim_get_ht_capability(mac_ctx, eHT_MPDU_DENSITY, |
| session_entry); |
| sta_param->maxAmsduSize = |
| lim_get_ht_capability(mac_ctx, eHT_MAX_AMSDU_LENGTH, |
| session_entry); |
| sta_param->fDsssCckMode40Mhz = |
| lim_get_ht_capability(mac_ctx, eHT_DSSS_CCK_MODE_40MHZ, |
| session_entry); |
| sta_param->fShortGI20Mhz = |
| lim_get_ht_capability(mac_ctx, eHT_SHORT_GI_20MHZ, |
| session_entry); |
| sta_param->fShortGI40Mhz = |
| lim_get_ht_capability(mac_ctx, eHT_SHORT_GI_40MHZ, |
| session_entry); |
| } |
| if (session_entry->vhtCapability) { |
| sta_param->vhtCapable = true; |
| sta_param->vhtTxBFCapable = |
| session_entry->vht_config.su_beam_formee; |
| sta_param->vhtTxMUBformeeCapable = |
| session_entry->vht_config.mu_beam_formee; |
| sta_param->enable_su_tx_bformer = |
| session_entry->vht_config.su_beam_former; |
| } |
| /* |
| * Since this is Self-STA, need to populate Self MAX_AMPDU_SIZE |
| * capabilities |
| */ |
| if (IS_DOT11_MODE_VHT(self_dot11mode)) { |
| val = 0; /* Default 8K AMPDU size */ |
| if (eSIR_SUCCESS != wlan_cfg_get_int(mac_ctx, |
| WNI_CFG_VHT_AMPDU_LEN_EXPONENT, &val)) |
| lim_log(mac_ctx, LOGE, FL |
| ("Couldn't get WNI_CFG_VHT_AMPDU_LEN_EXPONENT")); |
| sta_param->maxAmpduSize = (uint8_t) val; |
| } |
| sta_param->enableVhtpAid = session_entry->enableVhtpAid; |
| sta_param->enableAmpduPs = session_entry->enableAmpduPs; |
| sta_param->enableHtSmps = session_entry->enableHtSmps; |
| sta_param->htSmpsconfig = session_entry->htSmpsvalue; |
| sta_param->send_smps_action = session_entry->send_smps_action; |
| |
| lim_populate_own_rate_set(mac_ctx, &sta_param->supportedRates, NULL, |
| false, session_entry, NULL); |
| |
| lim_log(mac_ctx, LOGE, FL( |
| "GF: %d, ChnlWidth: %d, MimoPS: %d, lsigTXOP: %d, dsssCCK: %d," |
| " SGI20: %d, SGI40%d"), sta_param->greenFieldCapable, |
| sta_param->ch_width, sta_param->mimoPS, |
| sta_param->lsigTxopProtection, sta_param->fDsssCckMode40Mhz, |
| sta_param->fShortGI20Mhz, sta_param->fShortGI40Mhz); |
| |
| if (QDF_P2P_GO_MODE == session_entry->pePersona) |
| sta_param->p2pCapableSta = 1; |
| } |
| |
| /** |
| * lim_mlm_add_bss() - HAL interface for WMA_ADD_BSS_REQ |
| * @mac_ctx: global MAC context |
| * @mlm_start_req: MLM start request |
| * @session: PE session entry |
| * |
| * Package WMA_ADD_BSS_REQ to HAL, in order to start a BSS |
| * |
| * Return: eSIR_SME_SUCCESS on success, other error codes otherwise |
| */ |
| tSirResultCodes |
| lim_mlm_add_bss(tpAniSirGlobal mac_ctx, |
| tLimMlmStartReq *mlm_start_req, tpPESession session) |
| { |
| tSirMsgQ msg_buf; |
| tpAddBssParams addbss_param = NULL; |
| uint32_t retcode; |
| bool is_ch_dfs = false; |
| |
| /* Package WMA_ADD_BSS_REQ message parameters */ |
| addbss_param = qdf_mem_malloc(sizeof(tAddBssParams)); |
| if (NULL == addbss_param) { |
| lim_log(mac_ctx, LOGE, |
| FL("Unable to allocate memory during ADD_BSS")); |
| /* Respond to SME with LIM_MLM_START_CNF */ |
| return eSIR_MEM_ALLOC_FAILED; |
| } |
| |
| qdf_mem_set(addbss_param, sizeof(tAddBssParams), 0); |
| /* Fill in tAddBssParams members */ |
| qdf_mem_copy(addbss_param->bssId, mlm_start_req->bssId, |
| sizeof(tSirMacAddr)); |
| |
| /* Fill in tAddBssParams selfMacAddr */ |
| qdf_mem_copy(addbss_param->selfMacAddr, |
| session->selfMacAddr, sizeof(tSirMacAddr)); |
| |
| addbss_param->bssType = mlm_start_req->bssType; |
| if (mlm_start_req->bssType == eSIR_IBSS_MODE) |
| addbss_param->operMode = BSS_OPERATIONAL_MODE_STA; |
| else if (mlm_start_req->bssType == eSIR_INFRA_AP_MODE) |
| addbss_param->operMode = BSS_OPERATIONAL_MODE_AP; |
| else if (mlm_start_req->bssType == eSIR_NDI_MODE) |
| addbss_param->operMode = BSS_OPERATIONAL_MODE_NDI; |
| |
| addbss_param->shortSlotTimeSupported = session->shortSlotTimeSupported; |
| addbss_param->beaconInterval = mlm_start_req->beaconPeriod; |
| addbss_param->dtimPeriod = mlm_start_req->dtimPeriod; |
| addbss_param->wps_state = mlm_start_req->wps_state; |
| addbss_param->cfParamSet.cfpCount = mlm_start_req->cfParamSet.cfpCount; |
| addbss_param->cfParamSet.cfpPeriod = |
| mlm_start_req->cfParamSet.cfpPeriod; |
| addbss_param->cfParamSet.cfpMaxDuration = |
| mlm_start_req->cfParamSet.cfpMaxDuration; |
| addbss_param->cfParamSet.cfpDurRemaining = |
| mlm_start_req->cfParamSet.cfpDurRemaining; |
| |
| addbss_param->rateSet.numRates = mlm_start_req->rateSet.numRates; |
| qdf_mem_copy(addbss_param->rateSet.rate, mlm_start_req->rateSet.rate, |
| mlm_start_req->rateSet.numRates); |
| |
| addbss_param->nwType = mlm_start_req->nwType; |
| addbss_param->htCapable = mlm_start_req->htCapable; |
| addbss_param->vhtCapable = session->vhtCapability; |
| addbss_param->ch_width = session->ch_width; |
| addbss_param->ch_center_freq_seg0 = |
| session->ch_center_freq_seg0; |
| addbss_param->ch_center_freq_seg1 = |
| session->ch_center_freq_seg1; |
| addbss_param->htOperMode = mlm_start_req->htOperMode; |
| addbss_param->dualCTSProtection = mlm_start_req->dualCTSProtection; |
| addbss_param->txChannelWidthSet = mlm_start_req->txChannelWidthSet; |
| |
| addbss_param->currentOperChannel = mlm_start_req->channelNumber; |
| #ifdef WLAN_FEATURE_11W |
| addbss_param->rmfEnabled = session->limRmfEnabled; |
| #endif |
| |
| /* Update PE sessionId */ |
| addbss_param->sessionId = mlm_start_req->sessionId; |
| |
| /* Send the SSID to HAL to enable SSID matching for IBSS */ |
| qdf_mem_copy(&(addbss_param->ssId.ssId), |
| mlm_start_req->ssId.ssId, mlm_start_req->ssId.length); |
| addbss_param->ssId.length = mlm_start_req->ssId.length; |
| addbss_param->bHiddenSSIDEn = mlm_start_req->ssidHidden; |
| lim_log(mac_ctx, LOGE, FL("TRYING TO HIDE SSID %d"), |
| addbss_param->bHiddenSSIDEn); |
| /* CR309183. Disable Proxy Probe Rsp. Host handles Probe Requests. Until FW fixed. */ |
| addbss_param->bProxyProbeRespEn = 0; |
| addbss_param->obssProtEnabled = mlm_start_req->obssProtEnabled; |
| |
| addbss_param->maxTxPower = session->maxTxPower; |
| mlm_add_sta(mac_ctx, &addbss_param->staContext, |
| addbss_param->bssId, addbss_param->htCapable, |
| session); |
| |
| addbss_param->status = QDF_STATUS_SUCCESS; |
| addbss_param->respReqd = 1; |
| |
| /* Set a new state for MLME */ |
| session->limMlmState = eLIM_MLM_WT_ADD_BSS_RSP_STATE; |
| MTRACE(mac_trace(mac_ctx, TRACE_CODE_MLM_STATE, session->peSessionId, |
| session->limMlmState)); |
| |
| /* pass on the session persona to hal */ |
| addbss_param->halPersona = session->pePersona; |
| |
| if (session->ch_width == CH_WIDTH_160MHZ) { |
| is_ch_dfs = true; |
| } else if (session->ch_width == CH_WIDTH_80P80MHZ) { |
| if (cds_get_channel_state(mlm_start_req->channelNumber) == |
| CHANNEL_STATE_DFS || |
| cds_get_channel_state(session->ch_center_freq_seg1 - |
| SIR_80MHZ_START_CENTER_CH_DIFF) == |
| CHANNEL_STATE_DFS) |
| is_ch_dfs = true; |
| } else { |
| if (cds_get_channel_state(mlm_start_req->channelNumber) == |
| CHANNEL_STATE_DFS) |
| is_ch_dfs = true; |
| } |
| |
| addbss_param->bSpectrumMgtEnabled = |
| session->spectrumMgtEnabled || is_ch_dfs; |
| addbss_param->extSetStaKeyParamValid = 0; |
| |
| addbss_param->dot11_mode = session->dot11mode; |
| addbss_param->nss = session->nss; |
| if (QDF_IBSS_MODE == addbss_param->halPersona) { |
| addbss_param->nss_2g = mac_ctx->vdev_type_nss_2g.ibss; |
| addbss_param->nss_5g = mac_ctx->vdev_type_nss_5g.ibss; |
| addbss_param->tx_aggregation_size = |
| mac_ctx->roam.configParam.tx_aggregation_size; |
| addbss_param->rx_aggregation_size = |
| mac_ctx->roam.configParam.rx_aggregation_size; |
| } |
| lim_log(mac_ctx, LOG2, FL("dot11_mode:%d nss value:%d"), |
| addbss_param->dot11_mode, addbss_param->nss); |
| |
| if (cds_is_5_mhz_enabled()) { |
| addbss_param->ch_width = CH_WIDTH_5MHZ; |
| addbss_param->staContext.ch_width = CH_WIDTH_5MHZ; |
| } else if (cds_is_10_mhz_enabled()) { |
| addbss_param->ch_width = CH_WIDTH_10MHZ; |
| addbss_param->staContext.ch_width = CH_WIDTH_10MHZ; |
| } |
| |
| msg_buf.type = WMA_ADD_BSS_REQ; |
| msg_buf.reserved = 0; |
| msg_buf.bodyptr = addbss_param; |
| msg_buf.bodyval = 0; |
| MTRACE(mac_trace_msg_tx(mac_ctx, session->peSessionId, msg_buf.type)); |
| |
| lim_log(mac_ctx, LOGW, FL("Sending WMA_ADD_BSS_REQ...")); |
| retcode = wma_post_ctrl_msg(mac_ctx, &msg_buf); |
| if (eSIR_SUCCESS != retcode) { |
| lim_log(mac_ctx, LOGE, |
| FL("Posting ADD_BSS_REQ to HAL failed, reason=%X"), |
| retcode); |
| qdf_mem_free(addbss_param); |
| return eSIR_SME_HAL_SEND_MESSAGE_FAIL; |
| } |
| |
| return eSIR_SME_SUCCESS; |
| } |
| |
| /** |
| * lim_process_mlm_start_req() - process MLM_START_REQ message |
| * |
| * @mac_ctx: global MAC context |
| * @msg_buf: Pointer to MLM message buffer |
| * |
| * This function is called to process MLM_START_REQ message |
| * from SME |
| * 1) MLME receives LIM_MLM_START_REQ from LIM |
| * 2) MLME sends WMA_ADD_BSS_REQ to HAL |
| * 3) MLME changes state to eLIM_MLM_WT_ADD_BSS_RSP_STATE |
| * MLME now waits for HAL to send WMA_ADD_BSS_RSP |
| * |
| * Return: None |
| */ |
| static void lim_process_mlm_start_req(tpAniSirGlobal mac_ctx, uint32_t *msg_buf) |
| { |
| tLimMlmStartReq *mlm_start_req; |
| tLimMlmStartCnf mlm_start_cnf; |
| tpPESession session = NULL; |
| |
| if (msg_buf == NULL) { |
| lim_log(mac_ctx, LOGE, FL("Buffer is Pointing to NULL")); |
| return; |
| } |
| |
| mlm_start_req = (tLimMlmStartReq *) msg_buf; |
| session = pe_find_session_by_session_id(mac_ctx, |
| mlm_start_req->sessionId); |
| if (NULL == session) { |
| lim_log(mac_ctx, LOGP, |
| FL("Session Does not exist for given sessionID")); |
| mlm_start_cnf.resultCode = eSIR_SME_REFUSED; |
| goto end; |
| } |
| |
| if (session->limMlmState != eLIM_MLM_IDLE_STATE) { |
| /* |
| * Should not have received Start req in states other than idle. |
| * Return Start confirm with failure code. |
| */ |
| lim_log(mac_ctx, LOGE, |
| FL("received unexpected MLM_START_REQ in state %X"), |
| session->limMlmState); |
| lim_print_mlm_state(mac_ctx, LOGE, session->limMlmState); |
| mlm_start_cnf.resultCode = |
| eSIR_SME_BSS_ALREADY_STARTED_OR_JOINED; |
| goto end; |
| } |
| |
| mlm_start_cnf.resultCode = |
| lim_mlm_add_bss(mac_ctx, mlm_start_req, session); |
| |
| end: |
| /* Update PE session Id */ |
| mlm_start_cnf.sessionId = mlm_start_req->sessionId; |
| |
| /* Free up buffer allocated for LimMlmScanReq */ |
| qdf_mem_free(msg_buf); |
| |
| /* |
| * Respond immediately to LIM, only if MLME has not been |
| * successfully able to send WMA_ADD_BSS_REQ to HAL. |
| * Else, LIM_MLM_START_CNF will be sent after receiving |
| * WMA_ADD_BSS_RSP from HAL |
| */ |
| if (eSIR_SME_SUCCESS != mlm_start_cnf.resultCode) |
| lim_post_sme_message(mac_ctx, LIM_MLM_START_CNF, |
| (uint32_t *) &mlm_start_cnf); |
| } |
| |
| /** |
| * lim_post_join_set_link_state_callback()- registered callback to perform post |
| * peer creation operations |
| * |
| * @mac: pointer to global mac structure |
| * @callback_arg: registered callback argument |
| * @status: peer creation status |
| * |
| * this is registered callback function during association to perform |
| * post peer creation operation based on the peer creation status |
| * |
| * Return: none |
| */ |
| static void lim_post_join_set_link_state_callback(tpAniSirGlobal mac, |
| void *callback_arg, bool status) |
| { |
| uint8_t chan_num, sec_chan_offset; |
| tpPESession session_entry = (tpPESession) callback_arg; |
| tLimMlmJoinCnf mlm_join_cnf; |
| |
| lim_log(mac, LOG1, FL("Sessionid %d set link state(%d) cb status:%d"), |
| session_entry->peSessionId, session_entry->limMlmState, |
| status); |
| |
| if (!status) { |
| lim_log(mac, LOGE, |
| FL("failed to find pe session for session id:%d"), |
| session_entry->peSessionId); |
| goto failure; |
| } |
| |
| chan_num = session_entry->currentOperChannel; |
| sec_chan_offset = session_entry->htSecondaryChannelOffset; |
| /* |
| * store the channel switch session_entry in the lim |
| * global variable |
| */ |
| session_entry->channelChangeReasonCode = |
| LIM_SWITCH_CHANNEL_JOIN; |
| session_entry->pLimMlmReassocRetryReq = NULL; |
| lim_log(mac, LOGE, |
| FL("[lim_process_mlm_join_req]: suspend link success(%d) " |
| "on sessionid: %d setting channel to: %d with ch_width :%d " |
| "and maxtxPower: %d"), status, session_entry->peSessionId, |
| session_entry->currentOperChannel, |
| session_entry->ch_width, |
| session_entry->maxTxPower); |
| lim_set_channel(mac, session_entry->currentOperChannel, |
| session_entry->ch_center_freq_seg0, |
| session_entry->ch_center_freq_seg1, |
| session_entry->ch_width, |
| session_entry->maxTxPower, |
| session_entry->peSessionId); |
| return; |
| |
| failure: |
| MTRACE(mac_trace(mac, TRACE_CODE_MLM_STATE, session_entry->peSessionId, |
| session_entry->limMlmState)); |
| session_entry->limMlmState = eLIM_MLM_IDLE_STATE; |
| mlm_join_cnf.resultCode = eSIR_SME_RESOURCES_UNAVAILABLE; |
| mlm_join_cnf.sessionId = session_entry->peSessionId; |
| mlm_join_cnf.protStatusCode = eSIR_MAC_UNSPEC_FAILURE_STATUS; |
| lim_post_sme_message(mac, LIM_MLM_JOIN_CNF, (uint32_t *) &mlm_join_cnf); |
| } |
| |
| /** |
| * lim_process_mlm_post_join_suspend_link() - This function is called after the |
| * suspend link while joining off channel. |
| * |
| * @mac_ctx: Pointer to Global MAC structure |
| * @status: status of suspend link. |
| * @ctx: passed while calling suspend link(session) |
| * |
| * This function does following: |
| * Check for suspend state. |
| * If success, proceed with setting link state to recieve the |
| * probe response/beacon from intended AP. |
| * Switch to the APs channel. |
| * On an error case, send the MLM_JOIN_CNF with error status. |
| * |
| * @Return None |
| */ |
| static void |
| lim_process_mlm_post_join_suspend_link(tpAniSirGlobal mac_ctx, |
| QDF_STATUS status, |
| uint32_t *ctx) |
| { |
| tLimMlmJoinCnf mlm_join_cnf; |
| tpPESession session = (tpPESession) ctx; |
| tSirLinkState lnk_state; |
| |
| if (QDF_STATUS_SUCCESS != status) { |
| lim_log(mac_ctx, LOGE, |
| FL("Sessionid %d Suspend link(NOTIFY_BSS) failed. Still proceeding with join"), |
| session->peSessionId); |
| } |
| lim_deactivate_and_change_timer(mac_ctx, eLIM_JOIN_FAIL_TIMER); |
| |
| /* assign appropriate sessionId to the timer object */ |
| mac_ctx->lim.limTimers.gLimJoinFailureTimer.sessionId = |
| session->peSessionId; |
| |
| lnk_state = eSIR_LINK_PREASSOC_STATE; |
| lim_log(mac_ctx, LOG1, FL("[lim_process_mlm_join_req]: lnk_state:%d"), |
| lnk_state); |
| |
| if (lim_set_link_state(mac_ctx, lnk_state, |
| session->pLimMlmJoinReq->bssDescription.bssId, |
| session->selfMacAddr, |
| lim_post_join_set_link_state_callback, |
| session) != eSIR_SUCCESS) { |
| lim_log(mac_ctx, LOGE, |
| FL("SessionId:%d lim_set_link_state to eSIR_LINK_PREASSOC_STATE Failed!!"), |
| session->peSessionId); |
| lim_print_mac_addr(mac_ctx, |
| session->pLimMlmJoinReq->bssDescription.bssId, LOGE); |
| mlm_join_cnf.resultCode = eSIR_SME_RESOURCES_UNAVAILABLE; |
| session->limMlmState = eLIM_MLM_IDLE_STATE; |
| MTRACE(mac_trace(mac_ctx, TRACE_CODE_MLM_STATE, |
| session->peSessionId, session->limMlmState)); |
| goto error; |
| } |
| |
| return; |
| error: |
| mlm_join_cnf.resultCode = eSIR_SME_RESOURCES_UNAVAILABLE; |
| mlm_join_cnf.sessionId = session->peSessionId; |
| mlm_join_cnf.protStatusCode = eSIR_MAC_UNSPEC_FAILURE_STATUS; |
| lim_post_sme_message(mac_ctx, LIM_MLM_JOIN_CNF, |
| (uint32_t *) &mlm_join_cnf); |
| } |
| |
| /** |
| * lim_process_mlm_join_req() - process mlm join request. |
| * |
| * @mac_ctx: Pointer to Global MAC structure |
| * @msg: Pointer to the MLM message buffer |
| * |
| * This function is called to process MLM_JOIN_REQ message |
| * from SME. It does following: |
| * 1) Initialize LIM, HAL, DPH |
| * 2) Configure the BSS for which the JOIN REQ was received |
| * a) Send WMA_ADD_BSS_REQ to HAL - |
| * This will identify the BSS that we are interested in |
| * --AND-- |
| * Add a STA entry for the AP (in a STA context) |
| * b) Wait for WMA_ADD_BSS_RSP |
| * c) Send WMA_ADD_STA_REQ to HAL |
| * This will add the "local STA" entry to the STA table |
| * 3) Continue as before, i.e, |
| * a) Send a PROBE REQ |
| * b) Wait for PROBE RSP/BEACON containing the SSID that |
| * we are interested in |
| * c) Then start an AUTH seq |
| * d) Followed by the ASSOC seq |
| * |
| * @Return: None |
| */ |
| static void lim_process_mlm_join_req(tpAniSirGlobal mac_ctx, uint32_t *msg) |
| { |
| tLimMlmJoinCnf mlmjoin_cnf; |
| uint8_t sessionid; |
| tpPESession session; |
| |
| sessionid = ((tpLimMlmJoinReq) msg)->sessionId; |
| |
| session = pe_find_session_by_session_id(mac_ctx, sessionid); |
| if (NULL == session) { |
| lim_log(mac_ctx, LOGE, FL("SessionId:%d does not exist"), |
| sessionid); |
| goto error; |
| } |
| |
| if (!LIM_IS_AP_ROLE(session) && |
| ((session->limMlmState == eLIM_MLM_IDLE_STATE) || |
| (session->limMlmState == eLIM_MLM_JOINED_STATE)) && |
| (SIR_MAC_GET_ESS |
| (((tpLimMlmJoinReq) msg)->bssDescription.capabilityInfo) != |
| SIR_MAC_GET_IBSS(((tpLimMlmJoinReq) msg)->bssDescription. |
| capabilityInfo))) { |
| /* Hold onto Join request parameters */ |
| |
| session->pLimMlmJoinReq = (tpLimMlmJoinReq) msg; |
| if (is_lim_session_off_channel(mac_ctx, sessionid)) { |
| lim_log(mac_ctx, LOG1, |
| "SessionId:%d LimSession is on OffChannel", |
| sessionid); |
| /* suspend link */ |
| lim_log(mac_ctx, LOG1, |
| FL("Suspend link, sessionid %d is off channel"), |
| sessionid); |
| if (lim_is_link_suspended(mac_ctx)) { |
| lim_log(mac_ctx, LOGE, FL( |
| "link is already suspended, session %d" |
| ), sessionid); |
| goto error; |
| } |
| lim_process_mlm_post_join_suspend_link(mac_ctx, |
| QDF_STATUS_SUCCESS, (uint32_t *)session); |
| } else { |
| lim_log(mac_ctx, LOG1, FL("No need to Suspend link")); |
| /* |
| * No need to Suspend link as LimSession is not |
| * off channel, calling |
| * lim_process_mlm_post_join_suspend_link with |
| * status as SUCCESS. |
| */ |
| lim_log(mac_ctx, LOG1, |
| FL("SessionId:%d Join req on current chan"), |
| sessionid); |
| lim_process_mlm_post_join_suspend_link(mac_ctx, |
| QDF_STATUS_SUCCESS, (uint32_t *)session); |
| } |
| return; |
| } else { |
| /** |
| * Should not have received JOIN req in states other than |
| * Idle state or on AP. |
| * Return join confirm with invalid parameters code. |
| */ |
| lim_log(mac_ctx, LOGE, |
| FL("Session:%d Unexpected Join req, role %d state %X"), |
| session->peSessionId, GET_LIM_SYSTEM_ROLE(session), |
| session->limMlmState); |
| lim_print_mlm_state(mac_ctx, LOGE, session->limMlmState); |
| } |
| |
| error: |
| qdf_mem_free(msg); |
| if (session != NULL) |
| session->pLimMlmJoinReq = NULL; |
| mlmjoin_cnf.resultCode = eSIR_SME_RESOURCES_UNAVAILABLE; |
| mlmjoin_cnf.sessionId = sessionid; |
| mlmjoin_cnf.protStatusCode = eSIR_MAC_UNSPEC_FAILURE_STATUS; |
| lim_post_sme_message(mac_ctx, LIM_MLM_JOIN_CNF, |
| (uint32_t *)&mlmjoin_cnf); |
| |
| } |
| |
| /** |
| * lim_is_auth_req_expected() - check if auth request is expected |
| * |
| * @mac_ctx: global MAC context |
| * @session: PE session entry |
| * |
| * This function is called by lim_process_mlm_auth_req to check |
| * if auth request is expected. |
| * |
| * Return: true if expected and false otherwise |
| */ |
| static bool lim_is_auth_req_expected(tpAniSirGlobal mac_ctx, |
| tpPESession session) |
| { |
| bool flag = false; |
| |
| /* |
| * Expect Auth request only when: |
| * 1. STA joined/associated with a BSS or |
| * 2. STA is in IBSS mode |
| * and STA is going to authenticate with a unicast |
| * address and requested authentication algorithm is |
| * supported. |
| */ |
| |
| flag = (((LIM_IS_STA_ROLE(session) && |
| ((session->limMlmState == eLIM_MLM_JOINED_STATE) || |
| (session->limMlmState == |
| eLIM_MLM_LINK_ESTABLISHED_STATE))) || |
| (LIM_IS_IBSS_ROLE(session) && |
| (session->limMlmState == |
| eLIM_MLM_BSS_STARTED_STATE))) && |
| (!lim_is_group_addr(mac_ctx->lim.gpLimMlmAuthReq->peerMacAddr)) |
| && lim_is_auth_algo_supported(mac_ctx, |
| mac_ctx->lim.gpLimMlmAuthReq->authType, session)); |
| |
| return flag; |
| } |
| |
| /** |
| * lim_is_preauth_ctx_exisits() - check if preauth context exists |
| * |
| * @mac_ctx: global MAC context |
| * @session: PE session entry |
| * @preauth_node_ptr: pointer to preauth node pointer |
| * |
| * This function is called by lim_process_mlm_auth_req to check |
| * if preauth context already exists |
| * |
| * Return: true if exists and false otherwise |
| */ |
| static bool lim_is_preauth_ctx_exists(tpAniSirGlobal mac_ctx, |
| tpPESession session, |
| struct tLimPreAuthNode **preauth_node_ptr) |
| { |
| bool fl = false; |
| struct tLimPreAuthNode *preauth_node; |
| tpDphHashNode stads; |
| tSirMacAddr curr_bssid; |
| |
| preauth_node = *preauth_node_ptr; |
| sir_copy_mac_addr(curr_bssid, session->bssId); |
| stads = dph_get_hash_entry(mac_ctx, DPH_STA_HASH_INDEX_PEER, |
| &session->dph.dphHashTable); |
| preauth_node = lim_search_pre_auth_list(mac_ctx, |
| mac_ctx->lim.gpLimMlmAuthReq->peerMacAddr); |
| |
| fl = (((LIM_IS_STA_ROLE(session)) && |
| (session->limMlmState == eLIM_MLM_LINK_ESTABLISHED_STATE) && |
| ((stads != NULL) && |
| (mac_ctx->lim.gpLimMlmAuthReq->authType == |
| stads->mlmStaContext.authType)) && |
| (!qdf_mem_cmp(mac_ctx->lim.gpLimMlmAuthReq->peerMacAddr, |
| curr_bssid, sizeof(tSirMacAddr)))) || |
| ((preauth_node != NULL) && |
| (preauth_node->authType == |
| mac_ctx->lim.gpLimMlmAuthReq->authType))); |
| |
| return fl; |
| } |
| |
| /** |
| * lim_process_mlm_auth_req() - process lim auth request |
| * |
| * @mac_ctx: global MAC context |
| * @msg: MLM auth request message |
| * |
| * This function is called to process MLM_AUTH_REQ message from SME |
| * |
| * @Return: None |
| */ |
| static void lim_process_mlm_auth_req(tpAniSirGlobal mac_ctx, uint32_t *msg) |
| { |
| uint32_t num_preauth_ctx; |
| tSirMacAddr curr_bssid; |
| tSirMacAuthFrameBody auth_frame_body; |
| tLimMlmAuthCnf mlm_auth_cnf; |
| struct tLimPreAuthNode *preauth_node = NULL; |
| uint8_t session_id; |
| tpPESession session; |
| |
| if (msg == NULL) { |
| lim_log(mac_ctx, LOGE, FL("Buffer is Pointing to NULL")); |
| return; |
| } |
| |
| mac_ctx->lim.gpLimMlmAuthReq = (tLimMlmAuthReq *) msg; |
| session_id = mac_ctx->lim.gpLimMlmAuthReq->sessionId; |
| session = pe_find_session_by_session_id(mac_ctx, session_id); |
| if (NULL == session) { |
| lim_log(mac_ctx, LOGP, FL("SessionId:%d does not exist"), |
| session_id); |
| return; |
| } |
| |
| lim_log(mac_ctx, LOG1, FL("Process Auth Req sessionID %d Systemrole %d" |
| "mlmstate %d from: " MAC_ADDRESS_STR |
| " with authtype %d"), session_id, |
| GET_LIM_SYSTEM_ROLE(session), session->limMlmState, |
| MAC_ADDR_ARRAY(mac_ctx->lim.gpLimMlmAuthReq->peerMacAddr), |
| mac_ctx->lim.gpLimMlmAuthReq->authType); |
| |
| sir_copy_mac_addr(curr_bssid, session->bssId); |
| |
| if (!lim_is_auth_req_expected(mac_ctx, session)) { |
| /* |
| * Unexpected auth request. |
| * Return Auth confirm with Invalid parameters code. |
| */ |
| mlm_auth_cnf.resultCode = eSIR_SME_INVALID_PARAMETERS; |
| goto end; |
| } |
| |
| /* |
| * This is a request for pre-authentication. Check if there exists |
| * context already for the requested peer OR |
| * if this request is for the AP we're currently associated with. |
| * If yes, return auth confirm immediately when |
| * requested auth type is same as the one used before. |
| */ |
| if (lim_is_preauth_ctx_exists(mac_ctx, session, &preauth_node)) { |
| lim_log(mac_ctx, LOG2, |
| FL("Already have pre-auth context with peer: " |
| MAC_ADDRESS_STR), |
| MAC_ADDR_ARRAY(mac_ctx->lim.gpLimMlmAuthReq->peerMacAddr)); |
| mlm_auth_cnf.resultCode = (tSirResultCodes) |
| eSIR_MAC_SUCCESS_STATUS; |
| goto end; |
| } else { |
| if (wlan_cfg_get_int(mac_ctx, WNI_CFG_MAX_NUM_PRE_AUTH, |
| (uint32_t *) &num_preauth_ctx) != eSIR_SUCCESS) |
| lim_log(mac_ctx, LOGP, |
| FL("Could not retrieve NumPreAuthLimit from CFG")); |
| |
| if (mac_ctx->lim.gLimNumPreAuthContexts == num_preauth_ctx) { |
| lim_log(mac_ctx, LOGW, |
| FL("Number of pre-auth reached max limit")); |
| /* Return Auth confirm with reject code */ |
| mlm_auth_cnf.resultCode = |
| eSIR_SME_MAX_NUM_OF_PRE_AUTH_REACHED; |
| goto end; |
| } |
| } |
| |
| /* Delete pre-auth node if exists */ |
| if (preauth_node) |
| lim_delete_pre_auth_node(mac_ctx, |
| mac_ctx->lim.gpLimMlmAuthReq->peerMacAddr); |
| |
| session->limPrevMlmState = session->limMlmState; |
| session->limMlmState = eLIM_MLM_WT_AUTH_FRAME2_STATE; |
| MTRACE(mac_trace(mac_ctx, TRACE_CODE_MLM_STATE, session->peSessionId, |
| session->limMlmState)); |
| |
| /* Prepare & send Authentication frame */ |
| auth_frame_body.authAlgoNumber = |
| (uint8_t) mac_ctx->lim.gpLimMlmAuthReq->authType; |
| auth_frame_body.authTransactionSeqNumber = SIR_MAC_AUTH_FRAME_1; |
| auth_frame_body.authStatusCode = 0; |
| #ifdef FEATURE_WLAN_DIAG_SUPPORT |
| lim_diag_event_report(mac_ctx, WLAN_PE_DIAG_AUTH_START_EVENT, session, |
| eSIR_SUCCESS, auth_frame_body.authStatusCode); |
| #endif |
| mac_ctx->auth_ack_status = LIM_AUTH_ACK_NOT_RCD; |
| lim_send_auth_mgmt_frame(mac_ctx, |
| &auth_frame_body, mac_ctx->lim.gpLimMlmAuthReq->peerMacAddr, |
| LIM_NO_WEP_IN_FC, session, true); |
| |
| /* assign appropriate session_id to the timer object */ |
| mac_ctx->lim.limTimers.gLimAuthFailureTimer.sessionId = session_id; |
| |
| /* assign appropriate sessionId to the timer object */ |
| mac_ctx->lim.limTimers.g_lim_periodic_auth_retry_timer.sessionId = |
| session_id; |
| lim_deactivate_and_change_timer(mac_ctx, eLIM_AUTH_RETRY_TIMER); |
| /* Activate Auth failure timer */ |
| MTRACE(mac_trace(mac_ctx, TRACE_CODE_TIMER_ACTIVATE, |
| session->peSessionId, eLIM_AUTH_FAIL_TIMER)); |
| if (tx_timer_activate(&mac_ctx->lim.limTimers.gLimAuthFailureTimer) |
| != TX_SUCCESS) { |
| /* Could not start Auth failure timer. */ |
| lim_log(mac_ctx, LOGE, |
| FL("could not start Auth failure timer")); |
| /* Cleanup as if auth timer expired */ |
| lim_process_auth_failure_timeout(mac_ctx); |
| } else { |
| MTRACE(mac_trace(mac_ctx, TRACE_CODE_TIMER_ACTIVATE, |
| session->peSessionId, eLIM_AUTH_RETRY_TIMER)); |
| /* Activate Auth Retry timer */ |
| if (tx_timer_activate |
| (&mac_ctx->lim.limTimers.g_lim_periodic_auth_retry_timer) |
| != TX_SUCCESS) |
| lim_log(mac_ctx, LOGE, |
| FL("could not activate Auth Retry timer")); |
| } |
| |
| return; |
| end: |
| qdf_mem_copy((uint8_t *) &mlm_auth_cnf.peerMacAddr, |
| (uint8_t *) &mac_ctx->lim.gpLimMlmAuthReq->peerMacAddr, |
| sizeof(tSirMacAddr)); |
| |
| mlm_auth_cnf.authType = mac_ctx->lim.gpLimMlmAuthReq->authType; |
| mlm_auth_cnf.sessionId = session_id; |
| |
| qdf_mem_free(mac_ctx->lim.gpLimMlmAuthReq); |
| mac_ctx->lim.gpLimMlmAuthReq = NULL; |
| lim_log(mac_ctx, LOG1, "SessionId:%d LimPostSme LIM_MLM_AUTH_CNF ", |
| session_id); |
| lim_post_sme_message(mac_ctx, LIM_MLM_AUTH_CNF, |
| (uint32_t *) &mlm_auth_cnf); |
| } |
| |
| /** |
| * lim_process_mlm_assoc_req() - This function is called to process |
| * MLM_ASSOC_REQ message from SME |
| * |
| * @mac_ctx: Pointer to Global MAC structure |
| * @msg_buf: A pointer to the MLM message buffer |
| * |
| * This function is called to process MLM_ASSOC_REQ message from SME |
| * |
| * @Return None |
| */ |
| |
| static void lim_process_mlm_assoc_req(tpAniSirGlobal mac_ctx, uint32_t *msg_buf) |
| { |
| tSirMacAddr curr_bssId; |
| tLimMlmAssocReq *mlm_assoc_req; |
| tLimMlmAssocCnf mlm_assoc_cnf; |
| tpPESession session_entry; |
| |
| if (msg_buf == NULL) { |
| lim_log(mac_ctx, LOGE, FL("Buffer is Pointing to NULL")); |
| return; |
| } |
| |
| mlm_assoc_req = (tLimMlmAssocReq *) msg_buf; |
| session_entry = pe_find_session_by_session_id(mac_ctx, |
| mlm_assoc_req->sessionId); |
| if (session_entry == NULL) { |
| lim_log(mac_ctx, LOGP, |
| FL("SessionId:%d Session Does not exist"), |
| mlm_assoc_req->sessionId); |
| qdf_mem_free(mlm_assoc_req); |
| return; |
| } |
| |
| sir_copy_mac_addr(curr_bssId, session_entry->bssId); |
| |
| if (!(!LIM_IS_AP_ROLE(session_entry) && |
| (session_entry->limMlmState == eLIM_MLM_AUTHENTICATED_STATE || |
| session_entry->limMlmState == eLIM_MLM_JOINED_STATE) && |
| (!qdf_mem_cmp(mlm_assoc_req->peerMacAddr, |
| curr_bssId, sizeof(tSirMacAddr))))) { |
| /* |
| * Received Association request either in invalid state |
| * or to a peer MAC entity whose address is different |
| * from one that STA is currently joined with or on AP. |
| * Return Assoc confirm with Invalid parameters code. |
| */ |
| lim_log(mac_ctx, LOGW, |
| FL("received unexpected MLM_ASSOC_CNF in state %X for role=%d, MAC addr= " |
| MAC_ADDRESS_STR), session_entry->limMlmState, |
| GET_LIM_SYSTEM_ROLE(session_entry), |
| MAC_ADDR_ARRAY(mlm_assoc_req->peerMacAddr)); |
| lim_print_mlm_state(mac_ctx, LOGW, session_entry->limMlmState); |
| mlm_assoc_cnf.resultCode = eSIR_SME_INVALID_PARAMETERS; |
| mlm_assoc_cnf.protStatusCode = eSIR_MAC_UNSPEC_FAILURE_STATUS; |
| goto end; |
| } |
| |
| /* map the session entry pointer to the AssocFailureTimer */ |
| mac_ctx->lim.limTimers.gLimAssocFailureTimer.sessionId = |
| mlm_assoc_req->sessionId; |
| #ifdef WLAN_FEATURE_11W |
| /* |
| * Store current MLM state in case ASSOC response returns with |
| * TRY_AGAIN_LATER return code. |
| */ |
| if (session_entry->limRmfEnabled) { |
| session_entry->pmfComebackTimerInfo.limPrevMlmState = |
| session_entry->limPrevMlmState; |
| session_entry->pmfComebackTimerInfo.limMlmState = |
| session_entry->limMlmState; |
| } |
| #endif /* WLAN_FEATURE_11W */ |
| |
| session_entry->limPrevMlmState = session_entry->limMlmState; |
| session_entry->limMlmState = eLIM_MLM_WT_ASSOC_RSP_STATE; |
| MTRACE(mac_trace(mac_ctx, TRACE_CODE_MLM_STATE, |
| session_entry->peSessionId, |
| session_entry->limMlmState)); |
| lim_log(mac_ctx, LOG1, FL("SessionId:%d Sending Assoc_Req Frame"), |
| session_entry->peSessionId); |
| |
| /* Prepare and send Association request frame */ |
| lim_send_assoc_req_mgmt_frame(mac_ctx, mlm_assoc_req, session_entry); |
| |
| /* Start association failure timer */ |
| MTRACE(mac_trace(mac_ctx, TRACE_CODE_TIMER_ACTIVATE, |
| session_entry->peSessionId, eLIM_ASSOC_FAIL_TIMER)); |
| if (tx_timer_activate(&mac_ctx->lim.limTimers.gLimAssocFailureTimer) |
| != TX_SUCCESS) { |
| lim_log(mac_ctx, LOGP, |
| FL("SessionId:%d couldn't start Assoc failure timer"), |
| session_entry->peSessionId); |
| /* Cleanup as if assoc timer expired */ |
| lim_process_assoc_failure_timeout(mac_ctx, LIM_ASSOC); |
| } |
| |
| return; |
| end: |
| /* Update PE session Id */ |
| mlm_assoc_cnf.sessionId = mlm_assoc_req->sessionId; |
| /* Free up buffer allocated for assocReq */ |
| qdf_mem_free(mlm_assoc_req); |
| lim_post_sme_message(mac_ctx, LIM_MLM_ASSOC_CNF, |
| (uint32_t *) &mlm_assoc_cnf); |
| } |
| |
| /** |
| * lim_process_mlm_disassoc_req_ntf() - process disassoc request notification |
| * |
| * @mac_ctx: global MAC context |
| * @suspend_status: suspend status |
| * @msg: mlm message buffer |
| * |
| * This function is used to process MLM disassoc notification |
| * |
| * Return: None |
| */ |
| static void |
| lim_process_mlm_disassoc_req_ntf(tpAniSirGlobal mac_ctx, |
| QDF_STATUS suspend_status, uint32_t *msg) |
| { |
| uint16_t aid; |
| struct qdf_mac_addr curr_bssid; |
| tpDphHashNode stads; |
| tLimMlmDisassocReq *mlm_disassocreq; |
| tLimMlmDisassocCnf mlm_disassoccnf; |
| tpPESession session; |
| extern bool send_disassoc_frame; |
| tLimMlmStates mlm_state; |
| tSirSmeDisassocRsp *sme_disassoc_rsp; |
| |
| if (QDF_STATUS_SUCCESS != suspend_status) |
| lim_log(mac_ctx, LOGE, FL("Suspend Status is not success %X"), |
| suspend_status); |
| |
| mlm_disassocreq = (tLimMlmDisassocReq *) msg; |
| |
| session = pe_find_session_by_session_id(mac_ctx, |
| mlm_disassocreq->sessionId); |
| if (NULL == session) { |
| lim_log(mac_ctx, LOGE, |
| FL("session does not exist for given sessionId %d"), |
| mlm_disassocreq->sessionId); |
| mlm_disassoccnf.resultCode = eSIR_SME_INVALID_PARAMETERS; |
| goto end; |
| } |
| |
| lim_log(mac_ctx, LOG1, |
| FL("Process DisAssoc Req on sessionID %d Systemrole %d" |
| "mlmstate %d from: " MAC_ADDRESS_STR), |
| mlm_disassocreq->sessionId, GET_LIM_SYSTEM_ROLE(session), |
| session->limMlmState, |
| MAC_ADDR_ARRAY(mlm_disassocreq->peer_macaddr.bytes)); |
| |
| qdf_mem_copy(curr_bssid.bytes, session->bssId, QDF_MAC_ADDR_SIZE); |
| |
| switch (GET_LIM_SYSTEM_ROLE(session)) { |
| case eLIM_STA_ROLE: |
| if (!qdf_is_macaddr_equal(&mlm_disassocreq->peer_macaddr, |
| &curr_bssid)) { |
| lim_log(mac_ctx, LOGW, |
| FL("received MLM_DISASSOC_REQ with invalid BSS id")); |
| lim_print_mac_addr(mac_ctx, |
| mlm_disassocreq->peer_macaddr.bytes, LOGW); |
| |
| /* |
| * Disassociation response due to host triggered |
| * disassociation |
| */ |
| sme_disassoc_rsp = |
| qdf_mem_malloc(sizeof(tSirSmeDisassocRsp)); |
| if (NULL == sme_disassoc_rsp) { |
| lim_log(mac_ctx, LOGP, |
| FL("memory allocation failed for disassoc rsp")); |
| return; |
| } |
| |
| lim_log(mac_ctx, LOG1, |
| FL("send disassoc rsp with ret code %d for" MAC_ADDRESS_STR), |
| eSIR_SME_DEAUTH_STATUS, |
| MAC_ADDR_ARRAY( |
| mlm_disassocreq->peer_macaddr.bytes)); |
| |
| sme_disassoc_rsp->messageType = eWNI_SME_DISASSOC_RSP; |
| sme_disassoc_rsp->length = sizeof(tSirSmeDisassocRsp); |
| sme_disassoc_rsp->sessionId = |
| mlm_disassocreq->sessionId; |
| sme_disassoc_rsp->transactionId = 0; |
| sme_disassoc_rsp->statusCode = eSIR_SME_DEAUTH_STATUS; |
| |
| qdf_copy_macaddr(&sme_disassoc_rsp->peer_macaddr, |
| &mlm_disassocreq->peer_macaddr); |
| msg = (uint32_t *)sme_disassoc_rsp; |
| |
| lim_send_sme_disassoc_deauth_ntf(mac_ctx, |
| QDF_STATUS_SUCCESS, msg); |
| return; |
| |
| } |
| break; |
| case eLIM_STA_IN_IBSS_ROLE: |
| break; |
| case eLIM_AP_ROLE: |
| case eLIM_P2P_DEVICE_GO: |
| if (true == |
| mac_ctx->sap.SapDfsInfo.is_dfs_cac_timer_running) { |
| lim_log(mac_ctx, LOGE, |
| FL("CAC timer is running, drop disassoc from going out")); |
| mlm_disassoccnf.resultCode = eSIR_SME_SUCCESS; |
| goto end; |
| } |
| break; |
| default: |
| break; |
| } /* end switch (GET_LIM_SYSTEM_ROLE(session)) */ |
| |
| /* |
| * Check if there exists a context for the peer entity |
| * to be disassociated with. |
| */ |
| stads = dph_lookup_hash_entry(mac_ctx, |
| mlm_disassocreq->peer_macaddr.bytes, |
| &aid, &session->dph.dphHashTable); |
| if (stads) |
| mlm_state = stads->mlmStaContext.mlmState; |
| |
| if ((stads == NULL) || |
| (stads && |
| ((mlm_state != eLIM_MLM_LINK_ESTABLISHED_STATE) && |
| (mlm_state != eLIM_MLM_WT_ASSOC_CNF_STATE) && |
| (mlm_state != eLIM_MLM_ASSOCIATED_STATE)))) { |
| /* |
| * Received LIM_MLM_DISASSOC_REQ for STA that does not |
| * have context or in some transit state. |
| */ |
| lim_log(mac_ctx, LOGW, |
| FL("Invalid MLM_DISASSOC_REQ, Addr= " MAC_ADDRESS_STR), |
| MAC_ADDR_ARRAY(mlm_disassocreq->peer_macaddr.bytes)); |
| if (stads != NULL) |
| lim_log(mac_ctx, LOGE, FL("Sta MlmState : %d"), |
| stads->mlmStaContext.mlmState); |
| |
| /* Prepare and Send LIM_MLM_DISASSOC_CNF */ |
| mlm_disassoccnf.resultCode = eSIR_SME_INVALID_PARAMETERS; |
| goto end; |
| } |
| |
| stads->mlmStaContext.disassocReason = (tSirMacReasonCodes) |
| mlm_disassocreq->reasonCode; |
| stads->mlmStaContext.cleanupTrigger = mlm_disassocreq->disassocTrigger; |
| |
| /* |
| * Set state to mlm State to eLIM_MLM_WT_DEL_STA_RSP_STATE |
| * This is to address the issue of race condition between |
| * disconnect request from the HDD and deauth from AP |
| */ |
| |
| stads->mlmStaContext.mlmState = eLIM_MLM_WT_DEL_STA_RSP_STATE; |
| |
| /* Send Disassociate frame to peer entity */ |
| if (send_disassoc_frame && (mlm_disassocreq->reasonCode != |
| eSIR_MAC_DISASSOC_DUE_TO_FTHANDOFF_REASON)) { |
| mac_ctx->lim.limDisassocDeauthCnfReq.pMlmDisassocReq = |
| mlm_disassocreq; |
| /* |
| * Set state to mlm State to eLIM_MLM_WT_DEL_STA_RSP_STATE |
| * This is to address the issue of race condition between |
| * disconnect request from the HDD and deauth from AP |
| */ |
| stads->mlmStaContext.mlmState = eLIM_MLM_WT_DEL_STA_RSP_STATE; |
| |
| lim_send_disassoc_mgmt_frame(mac_ctx, |
| mlm_disassocreq->reasonCode, |
| mlm_disassocreq->peer_macaddr.bytes, session, true); |
| /* |
| * Abort Tx so that data frames won't be sent to the AP |
| * after sending Disassoc. |
| */ |
| if (LIM_IS_STA_ROLE(session)) |
| wma_tx_abort(session->smeSessionId); |
| } else { |
| /* Disassoc frame is not sent OTA */ |
| send_disassoc_frame = 1; |
| /* Receive path cleanup with dummy packet */ |
| if (eSIR_SUCCESS != |
| lim_cleanup_rx_path(mac_ctx, stads, session)) { |
| mlm_disassoccnf.resultCode = |
| eSIR_SME_RESOURCES_UNAVAILABLE; |
| goto end; |
| } |
| /* Free up buffer allocated for mlmDisassocReq */ |
| qdf_mem_free(mlm_disassocreq); |
| } |
| |
| return; |
| |
| end: |
| qdf_mem_copy((uint8_t *) &mlm_disassoccnf.peerMacAddr, |
| (uint8_t *) mlm_disassocreq->peer_macaddr.bytes, |
| QDF_MAC_ADDR_SIZE); |
| mlm_disassoccnf.aid = mlm_disassocreq->aid; |
| mlm_disassoccnf.disassocTrigger = mlm_disassocreq->disassocTrigger; |
| |
| /* Update PE session ID */ |
| mlm_disassoccnf.sessionId = mlm_disassocreq->sessionId; |
| |
| /* Free up buffer allocated for mlmDisassocReq */ |
| qdf_mem_free(mlm_disassocreq); |
| |
| lim_post_sme_message(mac_ctx, LIM_MLM_DISASSOC_CNF, |
| (uint32_t *) &mlm_disassoccnf); |
| } |
| |
| /** |
| * lim_check_disassoc_deauth_ack_pending() - check if deauth is pending |
| * |
| * @mac_ctx - global MAC context |
| * @sta_mac - station MAC |
| * |
| * This function checks if diassociation or deauthentication is pending for |
| * given station MAC address. |
| * |
| * Return: true if pending and false otherwise. |
| */ |
| bool lim_check_disassoc_deauth_ack_pending(tpAniSirGlobal mac_ctx, |
| uint8_t *sta_mac) |
| { |
| tLimMlmDisassocReq *disassoc_req; |
| tLimMlmDeauthReq *deauth_req; |
| |
| disassoc_req = mac_ctx->lim.limDisassocDeauthCnfReq.pMlmDisassocReq; |
| deauth_req = mac_ctx->lim.limDisassocDeauthCnfReq.pMlmDeauthReq; |
| if ((disassoc_req && (!qdf_mem_cmp((uint8_t *) sta_mac, |
| (uint8_t *) &disassoc_req->peer_macaddr.bytes, |
| QDF_MAC_ADDR_SIZE))) || |
| (deauth_req && (!qdf_mem_cmp((uint8_t *) sta_mac, |
| (uint8_t *) &deauth_req->peer_macaddr.bytes, |
| QDF_MAC_ADDR_SIZE)))) { |
| PELOG1(lim_log(mac_ctx, LOG1, |
| FL("Disassoc/Deauth ack pending"));) |
| return true; |
| } else { |
| PELOG1(lim_log(mac_ctx, LOG1, |
| FL("Disassoc/Deauth Ack not pending"));) |
| return false; |
| } |
| } |
| |
| /* |
| * lim_clean_up_disassoc_deauth_req() - cleans up pending disassoc or deauth req |
| * |
| * @mac_ctx: mac_ctx |
| * @sta_mac: sta mac address |
| * @clean_rx_path: flag to indicate whether to cleanup rx path or not |
| * |
| * This function cleans up pending disassoc or deauth req |
| * |
| * Return: void |
| */ |
| void lim_clean_up_disassoc_deauth_req(tpAniSirGlobal mac_ctx, |
| uint8_t *sta_mac, bool clean_rx_path) |
| { |
| tLimMlmDisassocReq *mlm_disassoc_req; |
| tLimMlmDeauthReq *mlm_deauth_req; |
| mlm_disassoc_req = mac_ctx->lim.limDisassocDeauthCnfReq.pMlmDisassocReq; |
| if (mlm_disassoc_req && |
| (!qdf_mem_cmp((uint8_t *) sta_mac, |
| (uint8_t *) &mlm_disassoc_req->peer_macaddr.bytes, |
| QDF_MAC_ADDR_SIZE))) { |
| if (clean_rx_path) { |
| lim_process_disassoc_ack_timeout(mac_ctx); |
| } else { |
| if (tx_timer_running( |
| &mac_ctx->lim.limTimers.gLimDisassocAckTimer)) { |
| lim_deactivate_and_change_timer(mac_ctx, |
| eLIM_DISASSOC_ACK_TIMER); |
| } |
| qdf_mem_free(mlm_disassoc_req); |
| mac_ctx->lim.limDisassocDeauthCnfReq.pMlmDisassocReq = |
| NULL; |
| } |
| } |
| |
| mlm_deauth_req = mac_ctx->lim.limDisassocDeauthCnfReq.pMlmDeauthReq; |
| if (mlm_deauth_req && |
| (!qdf_mem_cmp((uint8_t *) sta_mac, |
| (uint8_t *) &mlm_deauth_req->peer_macaddr.bytes, |
| QDF_MAC_ADDR_SIZE))) { |
| if (clean_rx_path) { |
| lim_process_deauth_ack_timeout(mac_ctx); |
| } else { |
| if (tx_timer_running( |
| &mac_ctx->lim.limTimers.gLimDeauthAckTimer)) { |
| lim_deactivate_and_change_timer(mac_ctx, |
| eLIM_DEAUTH_ACK_TIMER); |
| } |
| qdf_mem_free(mlm_deauth_req); |
| mac_ctx->lim.limDisassocDeauthCnfReq.pMlmDeauthReq = |
| NULL; |
| } |
| } |
| } |
| |
| /* |
| * lim_process_disassoc_ack_timeout() - wrapper function around |
| * lim_send_disassoc_cnf |
| * |
| * @mac_ctx: mac_ctx |
| * |
| * wrapper function around lim_send_disassoc_cnf |
| * |
| * Return: void |
| */ |
| void lim_process_disassoc_ack_timeout(tpAniSirGlobal mac_ctx) |
| { |
| lim_log(mac_ctx, LOG1, FL("")); |
| lim_send_disassoc_cnf(mac_ctx); |
| } |
| |
| /** |
| * lim_process_mlm_disassoc_req() - This function is called to process |
| * MLM_DISASSOC_REQ message from SME |
| * |
| * @mac_ctx: Pointer to Global MAC structure |
| * @msg_buf: A pointer to the MLM message buffer |
| * |
| * This function is called to process MLM_DISASSOC_REQ message from SME |
| * |
| * @Return: None |
| */ |
| static void |
| lim_process_mlm_disassoc_req(tpAniSirGlobal mac_ctx, uint32_t *msg_buf) |
| { |
| tLimMlmDisassocReq *mlm_disassoc_req; |
| |
| if (msg_buf == NULL) { |
| lim_log(mac_ctx, LOGE, |
| FL("Buffer is Pointing to NULL")); |
| return; |
| } |
| |
| mlm_disassoc_req = (tLimMlmDisassocReq *) msg_buf; |
| lim_log(mac_ctx, LOG1, |
| FL("Process disassoc req, sessionID %d from: "MAC_ADDRESS_STR), |
| mlm_disassoc_req->sessionId, |
| MAC_ADDR_ARRAY(mlm_disassoc_req->peer_macaddr.bytes)); |
| |
| lim_process_mlm_disassoc_req_ntf(mac_ctx, QDF_STATUS_SUCCESS, |
| (uint32_t *) msg_buf); |
| } |
| |
| /** |
| * lim_process_mlm_deauth_req_ntf() - This function is process mlm deauth req |
| * notification |
| * |
| * @mac_ctx: Pointer to Global MAC structure |
| * @suspend_status: suspend status |
| * @msg_buf: A pointer to the MLM message buffer |
| * |
| * This function is process mlm deauth req notification |
| * |
| * @Return: None |
| */ |
| static void |
| lim_process_mlm_deauth_req_ntf(tpAniSirGlobal mac_ctx, |
| QDF_STATUS suspend_status, uint32_t *msg_buf) |
| { |
| uint16_t aid; |
| tSirMacAddr curr_bssId; |
| tpDphHashNode sta_ds; |
| struct tLimPreAuthNode *auth_node; |
| tLimMlmDeauthReq *mlm_deauth_req; |
| tLimMlmDeauthCnf mlm_deauth_cnf; |
| tpPESession session; |
| tSirSmeDeauthRsp *sme_deauth_rsp; |
| |
| if (QDF_STATUS_SUCCESS != suspend_status) |
| lim_log(mac_ctx, LOGE, FL("Suspend Status is not success %X"), |
| suspend_status); |
| |
| mlm_deauth_req = (tLimMlmDeauthReq *) msg_buf; |
| session = pe_find_session_by_session_id(mac_ctx, |
| mlm_deauth_req->sessionId); |
| if (NULL == session) { |
| lim_log(mac_ctx, LOGE, |
| FL("session does not exist for given sessionId %d"), |
| mlm_deauth_req->sessionId); |
| qdf_mem_free(mlm_deauth_req); |
| return; |
| } |
| lim_log(mac_ctx, LOG1, FL("Process Deauth Req on sessionID %d Systemrole %d" |
| "mlmstate %d from: " MAC_ADDRESS_STR), |
| mlm_deauth_req->sessionId, |
| GET_LIM_SYSTEM_ROLE(session), |
| session->limMlmState, |
| MAC_ADDR_ARRAY(mlm_deauth_req->peer_macaddr.bytes)); |
| sir_copy_mac_addr(curr_bssId, session->bssId); |
| |
| switch (GET_LIM_SYSTEM_ROLE(session)) { |
| case eLIM_STA_ROLE: |
| switch (session->limMlmState) { |
| case eLIM_MLM_IDLE_STATE: |
| /* |
| * Attempting to Deauthenticate with a pre-authenticated |
| * peer. Deauthetiate with peer if there exists a |
| * pre-auth context below. |
| */ |
| break; |
| case eLIM_MLM_AUTHENTICATED_STATE: |
| case eLIM_MLM_WT_ASSOC_RSP_STATE: |
| case eLIM_MLM_LINK_ESTABLISHED_STATE: |
| if (qdf_mem_cmp(mlm_deauth_req->peer_macaddr.bytes, |
| curr_bssId, QDF_MAC_ADDR_SIZE)) { |
| lim_log(mac_ctx, LOGE, |
| FL("received MLM_DEAUTH_REQ with invalid BSS id " |
| "Peer MAC: "MAC_ADDRESS_STR |
| " CFG BSSID Addr : "MAC_ADDRESS_STR), |
| MAC_ADDR_ARRAY( |
| mlm_deauth_req->peer_macaddr.bytes), |
| MAC_ADDR_ARRAY(curr_bssId)); |
| /* |
| * Deauthentication response to host triggered |
| * deauthentication |
| */ |
| sme_deauth_rsp = |
| qdf_mem_malloc(sizeof(tSirSmeDeauthRsp)); |
| if (NULL == sme_deauth_rsp) { |
| lim_log(mac_ctx, LOGP, |
| FL("memory allocation failed for deauth rsp")); |
| return; |
| } |
| |
| lim_log(mac_ctx, LOG1, |
| FL("send deauth rsp with ret code %d for" MAC_ADDRESS_STR), |
| eSIR_SME_DEAUTH_STATUS, |
| MAC_ADDR_ARRAY( |
| mlm_deauth_req->peer_macaddr.bytes)); |
| |
| sme_deauth_rsp->messageType = |
| eWNI_SME_DEAUTH_RSP; |
| sme_deauth_rsp->length = |
| sizeof(tSirSmeDeauthRsp); |
| sme_deauth_rsp->statusCode = |
| eSIR_SME_DEAUTH_STATUS; |
| sme_deauth_rsp->sessionId = |
| mlm_deauth_req->sessionId; |
| sme_deauth_rsp->transactionId = 0; |
| |
| qdf_mem_copy(sme_deauth_rsp->peer_macaddr.bytes, |
| mlm_deauth_req->peer_macaddr.bytes, |
| QDF_MAC_ADDR_SIZE); |
| |
| msg_buf = (uint32_t *)sme_deauth_rsp; |
| |
| lim_send_sme_disassoc_deauth_ntf(mac_ctx, |
| QDF_STATUS_SUCCESS, msg_buf); |
| return; |
| } |
| |
| if ((session->limMlmState == |
| eLIM_MLM_AUTHENTICATED_STATE) || |
| (session->limMlmState == |
| eLIM_MLM_WT_ASSOC_RSP_STATE)) { |
| /* Send deauth frame to peer entity */ |
| lim_send_deauth_mgmt_frame(mac_ctx, |
| mlm_deauth_req->reasonCode, |
| mlm_deauth_req->peer_macaddr.bytes, |
| session, false); |
| /* Prepare and Send LIM_MLM_DEAUTH_CNF */ |
| mlm_deauth_cnf.resultCode = eSIR_SME_SUCCESS; |
| session->limMlmState = eLIM_MLM_IDLE_STATE; |
| MTRACE(mac_trace(mac_ctx, TRACE_CODE_MLM_STATE, |
| session->peSessionId, |
| session->limMlmState)); |
| goto end; |
| } |
| break; |
| default: |
| lim_log(mac_ctx, LOGW, |
| FL("received MLM_DEAUTH_REQ with in state %d for peer " |
| MAC_ADDRESS_STR), |
| session->limMlmState, |
| MAC_ADDR_ARRAY( |
| mlm_deauth_req->peer_macaddr.bytes)); |
| lim_print_mlm_state(mac_ctx, LOGW, |
| session->limMlmState); |
| /* Prepare and Send LIM_MLM_DEAUTH_CNF */ |
| mlm_deauth_cnf.resultCode = |
| eSIR_SME_STA_NOT_AUTHENTICATED; |
| |
| goto end; |
| } |
| break; |
| case eLIM_STA_IN_IBSS_ROLE: |
| lim_log(mac_ctx, LOGE, FL("received MLM_DEAUTH_REQ IBSS Mode")); |
| mlm_deauth_cnf.resultCode = eSIR_SME_INVALID_PARAMETERS; |
| goto end; |
| case eLIM_AP_ROLE: |
| case eLIM_P2P_DEVICE_GO: |
| if (true == |
| mac_ctx->sap.SapDfsInfo.is_dfs_cac_timer_running) { |
| lim_log(mac_ctx, LOGE, |
| FL("CAC timer is running, drop disassoc from going out")); |
| mlm_deauth_cnf.resultCode = eSIR_SME_SUCCESS; |
| goto end; |
| } |
| break; |
| |
| default: |
| break; |
| } /* end switch (GET_LIM_SYSTEM_ROLE(session)) */ |
| |
| /* |
| * Check if there exists a context for the peer entity |
| * to be deauthenticated with. |
| */ |
| sta_ds = dph_lookup_hash_entry(mac_ctx, |
| mlm_deauth_req->peer_macaddr.bytes, |
| &aid, &session->dph.dphHashTable); |
| |
| if (sta_ds == NULL) { |
| /* Check if there exists pre-auth context for this STA */ |
| auth_node = lim_search_pre_auth_list(mac_ctx, |
| mlm_deauth_req->peer_macaddr.bytes); |
| if (auth_node == NULL) { |
| /* |
| * Received DEAUTH REQ for a STA that is neither |
| * Associated nor Pre-authenticated. Log error, |
| * Prepare and Send LIM_MLM_DEAUTH_CNF |
| */ |
| lim_log(mac_ctx, LOGW, |
| FL("received MLM_DEAUTH_REQ in mlme state %d for STA that " |
| "does not have context, Addr=" |
| MAC_ADDRESS_STR), |
| session->limMlmState, |
| MAC_ADDR_ARRAY( |
| mlm_deauth_req->peer_macaddr.bytes)); |
| mlm_deauth_cnf.resultCode = |
| eSIR_SME_STA_NOT_AUTHENTICATED; |
| } else { |
| mlm_deauth_cnf.resultCode = eSIR_SME_SUCCESS; |
| /* Delete STA from pre-auth STA list */ |
| lim_delete_pre_auth_node(mac_ctx, |
| mlm_deauth_req->peer_macaddr.bytes); |
| /* Send Deauthentication frame to peer entity */ |
| lim_send_deauth_mgmt_frame(mac_ctx, |
| mlm_deauth_req->reasonCode, |
| mlm_deauth_req->peer_macaddr.bytes, |
| session, false); |
| } |
| goto end; |
| } else if ((sta_ds->mlmStaContext.mlmState != |
| eLIM_MLM_LINK_ESTABLISHED_STATE) && |
| (sta_ds->mlmStaContext.mlmState != |
| eLIM_MLM_WT_ASSOC_CNF_STATE)) { |
| /* |
| * received MLM_DEAUTH_REQ for STA that either has no context or |
| * in some transit state |
| */ |
| lim_log(mac_ctx, LOGW, |
| FL("Invalid MLM_DEAUTH_REQ, Addr="MAC_ADDRESS_STR), |
| MAC_ADDR_ARRAY(mlm_deauth_req->peer_macaddr.bytes)); |
| /* Prepare and Send LIM_MLM_DEAUTH_CNF */ |
| mlm_deauth_cnf.resultCode = eSIR_SME_INVALID_PARAMETERS; |
| goto end; |
| } |
| /* sta_ds->mlmStaContext.rxPurgeReq = 1; */ |
| sta_ds->mlmStaContext.disassocReason = (tSirMacReasonCodes) |
| mlm_deauth_req->reasonCode; |
| sta_ds->mlmStaContext.cleanupTrigger = mlm_deauth_req->deauthTrigger; |
| mac_ctx->lim.limDisassocDeauthCnfReq.pMlmDeauthReq = mlm_deauth_req; |
| /* |
| * Set state to mlm State to eLIM_MLM_WT_DEL_STA_RSP_STATE |
| * This is to address the issue of race condition between |
| * disconnect request from the HDD and disassoc from |
| * inactivity timer. This will make sure that we will not |
| * process disassoc if deauth is in progress for the station |
| * and thus mlmStaContext.cleanupTrigger will not be overwritten. |
| */ |
| sta_ds->mlmStaContext.mlmState = eLIM_MLM_WT_DEL_STA_RSP_STATE; |
| /* Send Deauthentication frame to peer entity */ |
| lim_send_deauth_mgmt_frame(mac_ctx, mlm_deauth_req->reasonCode, |
| mlm_deauth_req->peer_macaddr.bytes, |
| session, true); |
| return; |
| end: |
| qdf_copy_macaddr(&mlm_deauth_cnf.peer_macaddr, |
| &mlm_deauth_req->peer_macaddr); |
| mlm_deauth_cnf.deauthTrigger = mlm_deauth_req->deauthTrigger; |
| mlm_deauth_cnf.aid = mlm_deauth_req->aid; |
| mlm_deauth_cnf.sessionId = mlm_deauth_req->sessionId; |
| |
| /* Free up buffer allocated for mlmDeauthReq */ |
| qdf_mem_free(mlm_deauth_req); |
| lim_post_sme_message(mac_ctx, |
| LIM_MLM_DEAUTH_CNF, (uint32_t *) &mlm_deauth_cnf); |
| } |
| |
| /* |
| * lim_process_deauth_ack_timeout() - wrapper function around |
| * lim_send_deauth_cnf |
| * |
| * @mac_ctx: mac_ctx |
| * |
| * wrapper function around lim_send_deauth_cnf |
| * |
| * Return: void |
| */ |
| void lim_process_deauth_ack_timeout(tpAniSirGlobal mac_ctx) |
| { |
| lim_log(mac_ctx, LOG1, FL("")); |
| lim_send_deauth_cnf(mac_ctx); |
| } |
| |
| /* |
| * lim_process_mlm_deauth_req() - This function is called to process |
| * MLM_DEAUTH_REQ message from SME |
| * |
| * @mac_ctx: Pointer to Global MAC structure |
| * @msg_buf: A pointer to the MLM message buffer |
| * |
| * This function is called to process MLM_DEAUTH_REQ message from SME |
| * |
| * @Return: None |
| */ |
| static void |
| lim_process_mlm_deauth_req(tpAniSirGlobal mac_ctx, uint32_t *msg_buf) |
| { |
| tLimMlmDeauthReq *mlm_deauth_req; |
| tpPESession session; |
| |
| if (msg_buf == NULL) { |
| PELOGE(lim_log(mac_ctx, LOGE, FL("Buffer is Pointing to NULL"));) |
| return; |
| } |
| |
| mlm_deauth_req = (tLimMlmDeauthReq *) msg_buf; |
| lim_log(mac_ctx, LOG1, |
| FL("Process Deauth Req on sessionID %d from: " |
| MAC_ADDRESS_STR), |
| mlm_deauth_req->sessionId, |
| MAC_ADDR_ARRAY(mlm_deauth_req->peer_macaddr.bytes)); |
| |
| session = pe_find_session_by_session_id(mac_ctx, |
| mlm_deauth_req->sessionId); |
| if (NULL == session) { |
| lim_log(mac_ctx, LOGE, |
| FL("session does not exist for given sessionId %d"), |
| mlm_deauth_req->sessionId); |
| return; |
| } |
| lim_process_mlm_deauth_req_ntf(mac_ctx, QDF_STATUS_SUCCESS, |
| (uint32_t *) msg_buf); |
| } |
| |
| /** |
| * lim_process_mlm_set_keys_req() - This function is called to process |
| * MLM_SETKEYS_REQ message from SME |
| * |
| * @mac_ctx: Pointer to Global MAC structure |
| * @msg_buf: A pointer to the MLM message buffer |
| * |
| * This function is called to process MLM_SETKEYS_REQ message from SME |
| * |
| * @Return: None |
| */ |
| static void |
| lim_process_mlm_set_keys_req(tpAniSirGlobal mac_ctx, uint32_t *msg_buf) |
| { |
| uint16_t aid; |
| uint16_t sta_idx = 0; |
| uint32_t default_key_id = 0; |
| struct qdf_mac_addr curr_bssid; |
| tpDphHashNode sta_ds; |
| tLimMlmSetKeysReq *mlm_set_keys_req; |
| tLimMlmSetKeysCnf mlm_set_keys_cnf; |
| tpPESession session; |
| |
| if (msg_buf == NULL) { |
| lim_log(mac_ctx, LOGE, FL("Buffer is Pointing to NULL")); |
| return; |
| } |
| |
| mlm_set_keys_req = (tLimMlmSetKeysReq *) msg_buf; |
| /* Hold onto the SetKeys request parameters */ |
| mac_ctx->lim.gpLimMlmSetKeysReq = (void *)mlm_set_keys_req; |
| session = pe_find_session_by_session_id(mac_ctx, |
| mlm_set_keys_req->sessionId); |
| if (NULL == session) { |
| lim_log(mac_ctx, LOGE, |
| FL("session does not exist for given sessionId")); |
| return; |
| } |
| |
| lim_log(mac_ctx, LOGW, |
| FL("Received MLM_SETKEYS_REQ with parameters:" |
| "AID [%d], ED Type [%d], # Keys [%d] & Peer MAC Addr - "), |
| mlm_set_keys_req->aid, mlm_set_keys_req->edType, |
| mlm_set_keys_req->numKeys); |
| lim_print_mac_addr(mac_ctx, mlm_set_keys_req->peer_macaddr.bytes, LOGW); |
| qdf_mem_copy(curr_bssid.bytes, session->bssId, QDF_MAC_ADDR_SIZE); |
| |
| switch (GET_LIM_SYSTEM_ROLE(session)) { |
| case eLIM_STA_ROLE: |
| /* |
| * In case of TDLS, peerMac address need not be BssId. Skip this |
| * check if TDLS is enabled. |
| */ |
| #ifndef FEATURE_WLAN_TDLS |
| if ((!qdf_is_macaddr_broadcast( |
| &mlm_set_keys_req->peer_macaddr)) && |
| (!qdf_is_macaddr_equal(&mlm_set_keys_req->peer_macaddr, |
| &curr_bssid))) { |
| lim_log(mac_ctx, LOGW, |
| FL("Received MLM_SETKEYS_REQ with invalid BSSID" |
| MAC_ADDRESS_STR), |
| MAC_ADDR_ARRAY(mlm_set_keys_req-> |
| peer_macaddr.bytes)); |
| /* |
| * Prepare and Send LIM_MLM_SETKEYS_CNF with error code |
| */ |
| mlm_set_keys_cnf.resultCode = |
| eSIR_SME_INVALID_PARAMETERS; |
| goto end; |
| } |
| #endif |
| break; |
| case eLIM_STA_IN_IBSS_ROLE: |
| /* |
| * update the IBSS PE session encrption type based on the |
| * key type |
| */ |
| session->encryptType = mlm_set_keys_req->edType; |
| break; |
| default: |
| break; |
| } |
| |
| /* |
| * Use the "unicast" parameter to determine if the "Group Keys" |
| * are being set. |
| * mlm_set_keys_req->key.unicast = 0 -> Multicast/broadcast |
| * mlm_set_keys_req->key.unicast - 1 -> Unicast keys are being set |
| */ |
| if (qdf_is_macaddr_broadcast(&mlm_set_keys_req->peer_macaddr)) { |
| lim_log(mac_ctx, LOG1, FL("Trying to set Group Keys...%d "), |
| mlm_set_keys_req->sessionId); |
| /* |
| * When trying to set Group Keys for any security mode other |
| * than WEP, use the STA Index corresponding to the AP... |
| */ |
| switch (mlm_set_keys_req->edType) { |
| case eSIR_ED_CCMP: |
| #ifdef WLAN_FEATURE_11W |
| case eSIR_ED_AES_128_CMAC: |
| #endif |
| sta_idx = session->staId; |
| break; |
| default: |
| break; |
| } |
| } else { |
| lim_log(mac_ctx, LOG1, FL("Trying to set Unicast Keys...")); |
| /* |
| * Check if there exists a context for the |
| * peer entity for which keys need to be set. |
| */ |
| sta_ds = dph_lookup_hash_entry(mac_ctx, |
| mlm_set_keys_req->peer_macaddr.bytes, &aid, |
| &session->dph.dphHashTable); |
| if ((sta_ds == NULL) || |
| ((sta_ds->mlmStaContext.mlmState != |
| eLIM_MLM_LINK_ESTABLISHED_STATE) && |
| !LIM_IS_AP_ROLE(session))) { |
| /* |
| * Received LIM_MLM_SETKEYS_REQ for STA that does not |
| * have context or in some transit state. |
| */ |
| lim_log(mac_ctx, LOG1, |
| FL("Invalid MLM_SETKEYS_REQ, Addr = " |
| MAC_ADDRESS_STR), |
| MAC_ADDR_ARRAY(mlm_set_keys_req-> |
| peer_macaddr.bytes)); |
| /* Prepare and Send LIM_MLM_SETKEYS_CNF */ |
| mlm_set_keys_cnf.resultCode = |
| eSIR_SME_INVALID_PARAMETERS; |
| goto end; |
| } else { |
| sta_idx = sta_ds->staIndex; |
| } |
| } |
| |
| if ((mlm_set_keys_req->numKeys == 0) |
| && (mlm_set_keys_req->edType != eSIR_ED_NONE)) { |
| /* |
| * Broadcast/Multicast Keys (for WEP!!) are NOT sent |
| * via this interface!! This indicates to HAL that the WEP Keys |
| * need to be extracted from the CFG and applied to hardware |
| */ |
| default_key_id = 0xff; |
| } else if (mlm_set_keys_req->key[0].keyId && |
| ((mlm_set_keys_req->edType == eSIR_ED_WEP40) || |
| (mlm_set_keys_req->edType == eSIR_ED_WEP104))) { |
| /* |
| * If the Key Id is non zero and encryption mode is WEP, |
| * the key index is coming from the upper layers so that key |
| * only need to be used as the default tx key, This is being |
| * used only in case of WEP mode in HAL |
| */ |
| default_key_id = mlm_set_keys_req->key[0].keyId; |
| } else { |
| default_key_id = 0; |
| } |
| lim_log(mac_ctx, LOG1, |
| FL("Trying to set keys for STA Index [%d], using default_key_id [%d]"), |
| sta_idx, default_key_id); |
| |
| if (qdf_is_macaddr_broadcast(&mlm_set_keys_req->peer_macaddr)) { |
| session->limPrevMlmState = session->limMlmState; |
| session->limMlmState = eLIM_MLM_WT_SET_BSS_KEY_STATE; |
| MTRACE(mac_trace(mac_ctx, TRACE_CODE_MLM_STATE, |
| session->peSessionId, session->limMlmState)); |
| lim_log(mac_ctx, LOG1, FL("Trying to set Group Keys...%d "), |
| session->peSessionId); |
| /* Package WMA_SET_BSSKEY_REQ message parameters */ |
| lim_send_set_bss_key_req(mac_ctx, mlm_set_keys_req, session); |
| return; |
| } else { |
| /* |
| * Package WMA_SET_STAKEY_REQ / WMA_SET_STA_BCASTKEY_REQ message |
| * parameters |
| */ |
| lim_send_set_sta_key_req(mac_ctx, mlm_set_keys_req, sta_idx, |
| (uint8_t) default_key_id, session, |
| true); |
| return; |
| } |
| end: |
| mlm_set_keys_cnf.sessionId = mlm_set_keys_req->sessionId; |
| lim_post_sme_set_keys_cnf(mac_ctx, mlm_set_keys_req, &mlm_set_keys_cnf); |
| } |
| |
| /** |
| * lim_process_periodic_probe_req_timer() - This function is called to process |
| * periodic probe request to send during scan. |
| * |
| * @mac_ctx: Pointer to Global MAC structure |
| * |
| * This function is called to process periodic probe request to send during scan |
| * |
| * @Return None |
| */ |
| static void lim_process_periodic_probe_req_timer(tpAniSirGlobal mac_ctx) |
| { |
| uint8_t channel_num; |
| uint8_t i = 0; |
| tLimMlmScanReq *mlm_scan_req; |
| tSirRetStatus status = eSIR_SUCCESS; |
| TX_TIMER *probe_req_timer = |
| &mac_ctx->lim.limTimers.gLimPeriodicProbeReqTimer; |
| |
| if (qdf_mc_timer_get_current_state(&probe_req_timer->qdf_timer) |
| != QDF_TIMER_STATE_STOPPED) { |
| lim_log(mac_ctx, LOG1, FL("Invalid state of timer")); |
| return; |
| } |
| |
| if (!((mac_ctx->lim.gLimMlmState == eLIM_MLM_WT_PROBE_RESP_STATE) |
| && (probe_req_timer->sessionId != 0xff) |
| && (mac_ctx->lim.probeCounter < mac_ctx->lim.maxProbe))) { |
| lim_log(mac_ctx, LOG1, |
| FL("received unexpected Periodic scan timeout in state %X"), |
| mac_ctx->lim.gLimMlmState); |
| return; |
| } |
| |
| mlm_scan_req = mac_ctx->lim.gpLimMlmScanReq; |
| mac_ctx->lim.probeCounter++; |
| /* Periodic channel timer timed out to send probe request. */ |
| channel_num = lim_get_current_scan_channel(mac_ctx); |
| do { |
| /* |
| * Prepare and send Probe Request frame for all the SSIDs |
| * present in the saved MLM |
| */ |
| status = lim_send_probe_req_mgmt_frame(mac_ctx, |
| &mlm_scan_req->ssId[i], mlm_scan_req->bssId, |
| channel_num, mac_ctx->lim.gSelfMacAddr, |
| mlm_scan_req->dot11mode, |
| mlm_scan_req->uIEFieldLen, |
| (uint8_t *) (mlm_scan_req) + |
| mlm_scan_req->uIEFieldOffset); |
| if (status != eSIR_SUCCESS) { |
| lim_log(mac_ctx, LOGE, |
| FL("send ProbeReq failed for SSID %s on channel: %d"), |
| mlm_scan_req->ssId[i].ssId, channel_num); |
| return; |
| } |
| i++; |
| } while (i < mlm_scan_req->numSsid); |
| /* Activate timer again */ |
| if (tx_timer_activate(probe_req_timer) != TX_SUCCESS) { |
| lim_log(mac_ctx, LOGP, |
| FL("could not start periodic probe req timer")); |
| return; |
| } |
| } |
| |
| /** |
| * lim_process_join_failure_timeout() - This function is called to process |
| * JoinFailureTimeout |
| * |
| * @mac_ctx: Pointer to Global MAC structure |
| * |
| * This function is called to process JoinFailureTimeout |
| * |
| * @Return None |
| */ |
| static void lim_process_join_failure_timeout(tpAniSirGlobal mac_ctx) |
| { |
| tLimMlmJoinCnf mlm_join_cnf; |
| uint32_t len; |
| #ifdef FEATURE_WLAN_DIAG_SUPPORT_LIM |
| host_log_rssi_pkt_type *rssi_log = NULL; |
| #endif |
| tpPESession session; |
| |
| session = pe_find_session_by_session_id(mac_ctx, |
| mac_ctx->lim.limTimers.gLimJoinFailureTimer.sessionId); |
| if (NULL == session) { |
| lim_log(mac_ctx, LOGE, |
| FL("Session Does not exist for given sessionID")); |
| return; |
| } |
| #ifdef FEATURE_WLAN_DIAG_SUPPORT_LIM |
| WLAN_HOST_DIAG_LOG_ALLOC(rssi_log, |
| host_log_rssi_pkt_type, LOG_WLAN_RSSI_UPDATE_C); |
| if (rssi_log) |
| rssi_log->rssi = session->rssi; |
| WLAN_HOST_DIAG_LOG_REPORT(rssi_log); |
| #endif |
| |
| if (session->limMlmState == eLIM_MLM_WT_JOIN_BEACON_STATE) { |
| len = sizeof(tSirMacAddr); |
| /* Change timer for future activations */ |
| lim_deactivate_and_change_timer(mac_ctx, eLIM_JOIN_FAIL_TIMER); |
| /* Change Periodic probe req timer for future activation */ |
| lim_deactivate_and_change_timer(mac_ctx, |
| eLIM_PERIODIC_JOIN_PROBE_REQ_TIMER); |
| /* Issue MLM join confirm with timeout reason code */ |
| lim_log(mac_ctx, LOGE, |
| FL("Join Failure Timeout, In eLIM_MLM_WT_JOIN_BEACON_STATE session:%d " |
| MAC_ADDRESS_STR), |
| session->peSessionId, MAC_ADDR_ARRAY(session->bssId)); |
| |
| mlm_join_cnf.resultCode = eSIR_SME_JOIN_TIMEOUT_RESULT_CODE; |
| mlm_join_cnf.protStatusCode = eSIR_MAC_UNSPEC_FAILURE_STATUS; |
| session->limMlmState = eLIM_MLM_IDLE_STATE; |
| MTRACE(mac_trace(mac_ctx, TRACE_CODE_MLM_STATE, |
| session->peSessionId, session->limMlmState)); |
| /* Update PE session Id */ |
| mlm_join_cnf.sessionId = session->peSessionId; |
| /* Freeup buffer allocated to join request */ |
| if (session->pLimMlmJoinReq) { |
| qdf_mem_free(session->pLimMlmJoinReq); |
| session->pLimMlmJoinReq = NULL; |
| } |
| lim_post_sme_message(mac_ctx, LIM_MLM_JOIN_CNF, |
| (uint32_t *) &mlm_join_cnf); |
| return; |
| } else { |
| lim_log(mac_ctx, LOGW, |
| FL("received unexpected JOIN failure timeout in state %X"), |
| session->limMlmState); |
| lim_print_mlm_state(mac_ctx, LOGW, session->limMlmState); |
| } |
| } |
| |
| /** |
| * lim_process_periodic_join_probe_req_timer() - This function is called to |
| * process periodic probe request send during joining process. |
| * |
| * @mac_ctx: Pointer to Global MAC structure |
| * |
| * This function is called to process periodic probe request send during |
| * joining process. |
| * |
| * @Return None |
| */ |
| static void lim_process_periodic_join_probe_req_timer(tpAniSirGlobal mac_ctx) |
| { |
| tpPESession session; |
| tSirMacSSid ssid; |
| |
| session = pe_find_session_by_session_id(mac_ctx, |
| mac_ctx->lim.limTimers.gLimPeriodicJoinProbeReqTimer.sessionId); |
| if (NULL == session) { |
| lim_log(mac_ctx, LOGE, |
| FL("session does not exist for given SessionId : %d"), |
| mac_ctx->lim.limTimers.gLimPeriodicJoinProbeReqTimer. |
| sessionId); |
| return; |
| } |
| |
| if ((true == |
| tx_timer_running(&mac_ctx->lim.limTimers.gLimJoinFailureTimer)) |
| && (session->limMlmState == eLIM_MLM_WT_JOIN_BEACON_STATE)) { |
| qdf_mem_copy(ssid.ssId, session->ssId.ssId, |
| session->ssId.length); |
| ssid.length = session->ssId.length; |
| lim_send_probe_req_mgmt_frame(mac_ctx, &ssid, |
| session->pLimMlmJoinReq->bssDescription.bssId, |
| session->currentOperChannel /*chanNum */, |
| session->selfMacAddr, session->dot11mode, |
| session->pLimJoinReq->addIEScan.length, |
| session->pLimJoinReq->addIEScan.addIEdata); |
| lim_deactivate_and_change_timer(mac_ctx, |
| eLIM_PERIODIC_JOIN_PROBE_REQ_TIMER); |
| /* Activate Join Periodic Probe Req timer */ |
| if (tx_timer_activate( |
| &mac_ctx->lim.limTimers.gLimPeriodicJoinProbeReqTimer) != |
| TX_SUCCESS) { |
| lim_log(mac_ctx, LOGP, |
| FL("could not activate Periodic Join req failure timer")); |
| return; |
| } |
| } |
| } |
| |
| /** |
| * lim_process_auth_retry_timer()- function to Retry Auth |
| * @mac_ctx:pointer to global mac |
| * |
| * Return: void |
| */ |
| |
| static void lim_process_auth_retry_timer(tpAniSirGlobal mac_ctx) |
| { |
| tpPESession session_entry; |
| |
| lim_log(mac_ctx, LOG1, FL("ENTER")); |
| |
| session_entry = |
| pe_find_session_by_session_id(mac_ctx, |
| mac_ctx->lim.limTimers.g_lim_periodic_auth_retry_timer.sessionId); |
| if (NULL == session_entry) { |
| lim_log(mac_ctx, LOGE, |
| FL("session does not exist for given SessionId : %d"), |
| mac_ctx->lim.limTimers. |
| g_lim_periodic_auth_retry_timer.sessionId); |
| return; |
| } |
| |
| if (tx_timer_running(&mac_ctx->lim.limTimers.gLimAuthFailureTimer) && |
| (session_entry->limMlmState == eLIM_MLM_WT_AUTH_FRAME2_STATE) && |
| (LIM_AUTH_ACK_RCD_SUCCESS != mac_ctx->auth_ack_status)) { |
| tSirMacAuthFrameBody auth_frame; |
| |
| /* |
| * Send the auth retry only in case we have received ack failure |
| * else just restart the retry timer. |
| */ |
| if (LIM_AUTH_ACK_RCD_FAILURE == mac_ctx->auth_ack_status) { |
| /* Prepare & send Authentication frame */ |
| auth_frame.authAlgoNumber = |
| (uint8_t) mac_ctx->lim.gpLimMlmAuthReq->authType; |
| auth_frame.authTransactionSeqNumber = |
| SIR_MAC_AUTH_FRAME_1; |
| auth_frame.authStatusCode = 0; |
| lim_log(mac_ctx, LOGW, FL("Retry Auth ")); |
| mac_ctx->auth_ack_status = LIM_AUTH_ACK_NOT_RCD; |
| lim_send_auth_mgmt_frame(mac_ctx, |
| &auth_frame, |
| mac_ctx->lim.gpLimMlmAuthReq->peerMacAddr, |
| LIM_NO_WEP_IN_FC, session_entry, true); |
| } |
| |
| lim_deactivate_and_change_timer(mac_ctx, eLIM_AUTH_RETRY_TIMER); |
| |
| /* Activate Auth Retry timer */ |
| if (tx_timer_activate |
| (&mac_ctx->lim.limTimers.g_lim_periodic_auth_retry_timer) |
| != TX_SUCCESS) { |
| lim_log(mac_ctx, LOGE, |
| FL("could not activate Auth Retry failure timer")); |
| return; |
| } |
| } |
| return; |
| } /*** lim_process_auth_retry_timer() ***/ |
| |
| /** |
| * lim_process_auth_failure_timeout() - This function is called to process Min |
| * Channel Timeout during channel scan. |
| * |
| * @mac_ctx: Pointer to Global MAC structure |
| * |
| * This function is called to process Min Channel Timeout during channel scan. |
| * |
| * @Return: None |
| */ |
| static void lim_process_auth_failure_timeout(tpAniSirGlobal mac_ctx) |
| { |
| /* fetch the sessionEntry based on the sessionId */ |
| tpPESession session; |
| #ifdef FEATURE_WLAN_DIAG_SUPPORT_LIM |
| host_log_rssi_pkt_type *rssi_log = NULL; |
| #endif |
| |
| session = pe_find_session_by_session_id(mac_ctx, |
| mac_ctx->lim.limTimers.gLimAuthFailureTimer.sessionId); |
| if (NULL == session) { |
| lim_log(mac_ctx, LOGP, |
| FL("Session Does not exist for given sessionID")); |
| return; |
| } |
| |
| lim_log(mac_ctx, LOGE, |
| FL("received AUTH failure timeout in sessionid %d " |
| "limMlmstate %X limSmeState %X"), |
| session->peSessionId, session->limMlmState, |
| session->limSmeState); |
| #ifdef FEATURE_WLAN_DIAG_SUPPORT_LIM |
| lim_diag_event_report(mac_ctx, WLAN_PE_DIAG_AUTH_TIMEOUT, session, |
| 0, AUTH_FAILURE_TIMEOUT); |
| |
| WLAN_HOST_DIAG_LOG_ALLOC(rssi_log, host_log_rssi_pkt_type, |
| LOG_WLAN_RSSI_UPDATE_C); |
| if (rssi_log) |
| rssi_log->rssi = session->rssi; |
| WLAN_HOST_DIAG_LOG_REPORT(rssi_log); |
| #endif |
| |
| switch (session->limMlmState) { |
| case eLIM_MLM_WT_AUTH_FRAME2_STATE: |
| case eLIM_MLM_WT_AUTH_FRAME4_STATE: |
| /* |
| * Requesting STA did not receive next auth frame before Auth |
| * Failure timeout. Issue MLM auth confirm with timeout reason |
| * code. Restore default failure timeout |
| */ |
| if (QDF_P2P_CLIENT_MODE == session->pePersona |
| && session->defaultAuthFailureTimeout) |
| cfg_set_int(mac_ctx, |
| WNI_CFG_AUTHENTICATE_FAILURE_TIMEOUT, |
| session->defaultAuthFailureTimeout); |
| lim_restore_from_auth_state(mac_ctx, |
| eSIR_SME_AUTH_TIMEOUT_RESULT_CODE, |
| eSIR_MAC_UNSPEC_FAILURE_REASON, session); |
| break; |
| default: |
| /* |
| * Auth failure timer should not have timed out |
| * in states other than wt_auth_frame2/4 |
| */ |
| lim_log(mac_ctx, LOGE, |
| FL("received unexpected AUTH failure timeout in state %X"), |
| session->limMlmState); |
| lim_print_mlm_state(mac_ctx, LOGE, session->limMlmState); |
| break; |
| } |
| } |
| |
| /** |
| * lim_process_auth_rsp_timeout() - This function is called to process Min |
| * Channel Timeout during channel scan. |
| * |
| * @mac_ctx: Pointer to Global MAC structure |
| * |
| * This function is called to process Min Channel Timeout during channel scan. |
| * |
| * @Return: None |
| */ |
| static void |
| lim_process_auth_rsp_timeout(tpAniSirGlobal mac_ctx, uint32_t auth_idx) |
| { |
| struct tLimPreAuthNode *auth_node; |
| tpPESession session; |
| uint8_t session_id; |
| |
| auth_node = lim_get_pre_auth_node_from_index(mac_ctx, |
| &mac_ctx->lim.gLimPreAuthTimerTable, auth_idx); |
| if (NULL == auth_node) { |
| lim_log(mac_ctx, LOGW, FL("Invalid auth node")); |
| return; |
| } |
| |
| session = pe_find_session_by_bssid(mac_ctx, auth_node->peerMacAddr, |
| &session_id); |
| if (NULL == session) { |
| lim_log(mac_ctx, LOGW, |
| FL("session does not exist for given BSSID ")); |
| return; |
| } |
| |
| #ifdef FEATURE_WLAN_DIAG_SUPPORT_LIM |
| lim_diag_event_report(mac_ctx, WLAN_PE_DIAG_AUTH_TIMEOUT, |
| session, 0, AUTH_RESPONSE_TIMEOUT); |
| #endif |
| |
| if (LIM_IS_AP_ROLE(session) || LIM_IS_IBSS_ROLE(session)) { |
| if (auth_node->mlmState != eLIM_MLM_WT_AUTH_FRAME3_STATE) { |
| lim_log(mac_ctx, LOGE, |
| FL("received AUTH rsp timeout in unexpected " |
| "state for MAC address: " MAC_ADDRESS_STR), |
| MAC_ADDR_ARRAY(auth_node->peerMacAddr)); |
| } else { |
| auth_node->mlmState = eLIM_MLM_AUTH_RSP_TIMEOUT_STATE; |
| auth_node->fTimerStarted = 0; |
| lim_log(mac_ctx, LOG1, |
| FL("AUTH rsp timedout for MAC address " |
| MAC_ADDRESS_STR), |
| MAC_ADDR_ARRAY(auth_node->peerMacAddr)); |
| /* Change timer to reactivate it in future */ |
| lim_deactivate_and_change_per_sta_id_timer(mac_ctx, |
| eLIM_AUTH_RSP_TIMER, auth_node->authNodeIdx); |
| lim_delete_pre_auth_node(mac_ctx, |
| auth_node->peerMacAddr); |
| } |
| } |
| } |
| |
| /** |
| * lim_process_assoc_failure_timeout() - This function is called to process Min |
| * Channel Timeout during channel scan. |
| * |
| * @mac_ctx Pointer to Global MAC structure |
| * |
| * This function is called to process Min Channel Timeout during channel scan. |
| * |
| * @Return: None |
| */ |
| static void |
| lim_process_assoc_failure_timeout(tpAniSirGlobal mac_ctx, uint32_t msg_type) |
| { |
| |
| tLimMlmAssocCnf mlm_assoc_cnf; |
| tpPESession session; |
| #ifdef FEATURE_WLAN_DIAG_SUPPORT_LIM |
| host_log_rssi_pkt_type *rssi_log = NULL; |
| #endif |
| /* |
| * to fetch the lim/mlm state based on the session_id, use the |
| * below sessionEntry |
| */ |
| uint8_t session_id; |
| |
| if (msg_type == LIM_ASSOC) |
| session_id = |
| mac_ctx->lim.limTimers.gLimAssocFailureTimer.sessionId; |
| else |
| session_id = |
| mac_ctx->lim.limTimers.gLimReassocFailureTimer.sessionId; |
| |
| session = pe_find_session_by_session_id(mac_ctx, session_id); |
| if (NULL == session) { |
| lim_log(mac_ctx, LOGP, |
| FL("Session Does not exist for given sessionID")); |
| return; |
| } |
| #ifdef FEATURE_WLAN_DIAG_SUPPORT_LIM |
| lim_diag_event_report(mac_ctx, WLAN_PE_DIAG_ASSOC_TIMEOUT, |
| session, 0, 0); |
| |
| WLAN_HOST_DIAG_LOG_ALLOC(rssi_log, |
| host_log_rssi_pkt_type, |
| LOG_WLAN_RSSI_UPDATE_C); |
| if (rssi_log) |
| rssi_log->rssi = session->rssi; |
| WLAN_HOST_DIAG_LOG_REPORT(rssi_log); |
| #endif |
| |
| lim_log(mac_ctx, LOG1, |
| FL("Re/Association Response not received before timeout ")); |
| |
| /* |
| * Send Deauth to handle the scenareo where association timeout happened |
| * when device has missed the assoc resp sent by peer. |
| * By sending deauth try to clear the session created on peer device. |
| */ |
| lim_log(mac_ctx, LOGE, |
| FL("Sessionid: %d try sending deauth on channel %d to BSSID: " |
| MAC_ADDRESS_STR), session->peSessionId, |
| session->currentOperChannel, |
| MAC_ADDR_ARRAY(session->bssId)); |
| lim_send_deauth_mgmt_frame(mac_ctx, eSIR_MAC_UNSPEC_FAILURE_REASON, |
| session->bssId, session, false); |
| |
| if ((LIM_IS_AP_ROLE(session)) || |
| ((session->limMlmState != eLIM_MLM_WT_ASSOC_RSP_STATE) && |
| (session->limMlmState != eLIM_MLM_WT_REASSOC_RSP_STATE) && |
| (session->limMlmState != eLIM_MLM_WT_FT_REASSOC_RSP_STATE))) { |
| /* |
| * Re/Assoc failure timer should not have timedout on AP |
| * or in a state other than wt_re/assoc_response. |
| */ |
| lim_log(mac_ctx, LOGW, |
| FL("received unexpected REASSOC failure timeout in state %X for role %d"), |
| session->limMlmState, |
| GET_LIM_SYSTEM_ROLE(session)); |
| lim_print_mlm_state(mac_ctx, LOGW, session->limMlmState); |
| return; |
| } |
| |
| if ((msg_type == LIM_ASSOC) || ((msg_type == LIM_REASSOC) |
| && (session->limMlmState == eLIM_MLM_WT_FT_REASSOC_RSP_STATE))) { |
| lim_log(mac_ctx, LOGE, |
| FL("(Re)Assoc Failure Timeout occurred.")); |
| session->limMlmState = eLIM_MLM_IDLE_STATE; |
| MTRACE(mac_trace(mac_ctx, TRACE_CODE_MLM_STATE, |
| session->peSessionId, session->limMlmState)); |
| /* Change timer for future activations */ |
| lim_deactivate_and_change_timer(mac_ctx, eLIM_ASSOC_FAIL_TIMER); |
| /* |
| * Free up buffer allocated for JoinReq held by |
| * MLM state machine |
| */ |
| if (session->pLimMlmJoinReq) { |
| qdf_mem_free(session->pLimMlmJoinReq); |
| session->pLimMlmJoinReq = NULL; |
| } |
| /* To remove the preauth node in case of fail to associate */ |
| if (lim_search_pre_auth_list(mac_ctx, session->bssId)) { |
| lim_log(mac_ctx, LOG1, |
| FL(" delete pre auth node for "MAC_ADDRESS_STR), |
| MAC_ADDR_ARRAY(session->bssId)); |
| lim_delete_pre_auth_node(mac_ctx, |
| session->bssId); |
| } |
| |
| mlm_assoc_cnf.resultCode = eSIR_SME_ASSOC_TIMEOUT_RESULT_CODE; |
| mlm_assoc_cnf.protStatusCode = eSIR_MAC_UNSPEC_FAILURE_STATUS; |
| /* Update PE session Id */ |
| mlm_assoc_cnf.sessionId = session->peSessionId; |
| if (msg_type == LIM_ASSOC) { |
| lim_post_sme_message(mac_ctx, LIM_MLM_ASSOC_CNF, |
| (uint32_t *) &mlm_assoc_cnf); |
| } else { |
| /* |
| * Will come here only in case of 11r, Ese FT |
| * when reassoc rsp is not received and we |
| * receive a reassoc - timesout |
| */ |
| mlm_assoc_cnf.resultCode = |
| eSIR_SME_FT_REASSOC_TIMEOUT_FAILURE; |
| lim_post_sme_message(mac_ctx, LIM_MLM_REASSOC_CNF, |
| (uint32_t *) &mlm_assoc_cnf); |
| } |
| } else { |
| /* |
| * Restore pre-reassoc req state. |
| * Set BSSID to currently associated AP address. |
| */ |
| session->limMlmState = session->limPrevMlmState; |
| MTRACE(mac_trace(mac_ctx, TRACE_CODE_MLM_STATE, |
| session->peSessionId, session->limMlmState)); |
| lim_restore_pre_reassoc_state(mac_ctx, |
| eSIR_SME_REASSOC_TIMEOUT_RESULT_CODE, |
| eSIR_MAC_UNSPEC_FAILURE_STATUS, session); |
| } |
| } |
| |
| /** |
| * lim_complete_mlm_scan() - This function is called to send MLM_SCAN_CNF |
| * message to SME state machine. |
| * |
| * @mac_ctx: Pointer to Global MAC structure |
| * @ret_code: Result code to be sent |
| * |
| * This function is called to send MLM_SCAN_CNF message to SME state machine. |
| * |
| * @Return: None |
| */ |
| |
| void lim_complete_mlm_scan(tpAniSirGlobal mac_ctx, tSirResultCodes ret_code) |
| { |
| tLimMlmScanCnf mlm_scan_cnf; |
| |
| /* Restore previous MLM state */ |
| mac_ctx->lim.gLimMlmState = mac_ctx->lim.gLimPrevMlmState; |
| MTRACE(mac_trace(mac_ctx, TRACE_CODE_MLM_STATE, NO_SESSION, |
| mac_ctx->lim.gLimMlmState)); |
| lim_restore_pre_scan_state(mac_ctx); |
| /* Free up mac_ctx->lim.gLimMlmScanReq */ |
| if (NULL != mac_ctx->lim.gpLimMlmScanReq) { |
| qdf_mem_free(mac_ctx->lim.gpLimMlmScanReq); |
| mac_ctx->lim.gpLimMlmScanReq = NULL; |
| } |
| |
| mlm_scan_cnf.resultCode = ret_code; |
| lim_post_sme_message(mac_ctx, LIM_MLM_SCAN_CNF, |
| (uint32_t *) &mlm_scan_cnf); |
| } |
| |
| /** |
| * lim_set_channel() - set channel api for lim |
| * |
| * @mac_ctx: Pointer to Global MAC structure |
| * @channel: power save state |
| * @ch_center_freq_seg0: center freq seq 0 |
| * @ch_center_freq_seg1: center freq seq 1 |
| * @ch_width: channel width |
| * @max_tx_power: max tx power |
| * @pe_session_id: pe session id |
| * |
| * set channel api for lim |
| * |
| * @Return: None |
| */ |
| void lim_set_channel(tpAniSirGlobal mac_ctx, uint8_t channel, |
| uint8_t ch_center_freq_seg0, uint8_t ch_center_freq_seg1, |
| enum phy_ch_width ch_width, int8_t max_tx_power, |
| uint8_t pe_session_id) |
| { |
| tpPESession pe_session; |
| pe_session = pe_find_session_by_session_id(mac_ctx, pe_session_id); |
| |
| if (NULL == pe_session) { |
| lim_log(mac_ctx, LOGP, FL("Invalid PE session = %d"), |
| pe_session_id); |
| return; |
| } |
| lim_send_switch_chnl_params(mac_ctx, channel, ch_center_freq_seg0, |
| ch_center_freq_seg1, ch_width, |
| max_tx_power, pe_session_id, false); |
| } |