| /* |
| * Copyright (c) 2013, 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. |
| */ |
| |
| /**======================================================================== |
| |
| \file wlan_hdd_tdls.c |
| |
| \brief WLAN Host Device Driver implementation for TDLS |
| |
| ========================================================================*/ |
| |
| #include <wlan_hdd_includes.h> |
| #include <wlan_hdd_hostapd.h> |
| #include <net/cfg80211.h> |
| #include <linux/netdevice.h> |
| #include <linux/skbuff.h> |
| #include <linux/list.h> |
| #include <linux/etherdevice.h> |
| #include <net/ieee80211_radiotap.h> |
| #include "wlan_hdd_tdls.h" |
| #include "wlan_hdd_cfg80211.h" |
| |
| |
| static struct mutex tdls_lock; |
| static tANI_S32 wlan_hdd_get_tdls_discovery_peer_cnt(tdlsCtx_t *pHddTdlsCtx); |
| static tANI_S32 wlan_hdd_tdls_peer_reset_discovery_processed(tdlsCtx_t *pHddTdlsCtx); |
| static void wlan_hdd_tdls_timers_destroy(tdlsCtx_t *pHddTdlsCtx); |
| #ifdef CONFIG_TDLS_IMPLICIT |
| static void wlan_hdd_tdls_pre_setup(struct work_struct *work); |
| #endif |
| |
| #ifndef WLAN_FEATURE_TDLS_DEBUG |
| #define TDLS_LOG_LEVEL VOS_TRACE_LEVEL_INFO |
| #else |
| #define TDLS_LOG_LEVEL VOS_TRACE_LEVEL_WARN |
| #endif |
| |
| static u8 wlan_hdd_tdls_hash_key (u8 *mac) |
| { |
| int i; |
| u8 key = 0; |
| |
| for (i = 0; i < 6; i++) |
| key ^= mac[i]; |
| |
| return key; |
| } |
| |
| #ifdef CONFIG_TDLS_IMPLICIT |
| static void wlan_hdd_tdls_pre_setup_init_work(tdlsCtx_t * pHddTdlsCtx, |
| hddTdlsPeer_t *curr_candidate) |
| { |
| if (TDLS_CTX_MAGIC != pHddTdlsCtx->magic) |
| { |
| pHddTdlsCtx->curr_candidate = curr_candidate; |
| pHddTdlsCtx->magic = TDLS_CTX_MAGIC; |
| |
| INIT_WORK(&pHddTdlsCtx->implicit_setup, wlan_hdd_tdls_pre_setup); |
| schedule_work(&pHddTdlsCtx->implicit_setup); |
| } |
| } |
| #endif |
| |
| static v_VOID_t wlan_hdd_tdls_start_peer_discover_timer(tdlsCtx_t *pHddTdlsCtx, |
| tANI_BOOLEAN mutexLock, |
| v_U32_t discoveryExpiry) |
| { |
| hdd_station_ctx_t *pHddStaCtx; |
| |
| if ( mutexLock ) |
| { |
| if (mutex_lock_interruptible(&tdls_lock)) |
| { |
| VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR, |
| "%s: unable to lock list: %d", __func__, __LINE__); |
| return; |
| } |
| } |
| if (NULL == pHddTdlsCtx) |
| { |
| if ( mutexLock ) |
| mutex_unlock(&tdls_lock); |
| return; |
| } |
| |
| if (NULL == pHddTdlsCtx->pAdapter) |
| { |
| if ( mutexLock ) |
| mutex_unlock(&tdls_lock); |
| return; |
| } |
| |
| pHddStaCtx = WLAN_HDD_GET_STATION_CTX_PTR(pHddTdlsCtx->pAdapter); |
| #ifdef FEATURE_WLAN_TDLS_INTERNAL |
| wlan_hdd_tdls_timer_restart(pHddTdlsCtx->pAdapter, |
| &pHddTdlsCtx->peerDiscoverTimer, |
| discoveryExpiry); |
| #endif |
| VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_INFO, "beacon rssi: %d", |
| pHddTdlsCtx->ap_rssi); |
| |
| if ( mutexLock ) |
| mutex_unlock(&tdls_lock); |
| |
| return; |
| } |
| |
| #ifdef TDLS_USE_SEPARATE_DISCOVERY_TIMER |
| static v_VOID_t wlan_hdd_tdls_discover_peer_cb( v_PVOID_t userData ) |
| { |
| int i; |
| struct list_head *head; |
| struct list_head *pos; |
| hddTdlsPeer_t *curr_peer; |
| hdd_station_ctx_t *pHddStaCtx; |
| tdlsCtx_t *pHddTdlsCtx = (tdlsCtx_t *)userData; |
| int discover_req_sent = 0; |
| v_U32_t discover_expiry = TDLS_SUB_DISCOVERY_PERIOD; |
| tANI_BOOLEAN doMutexLock = eANI_BOOLEAN_TRUE; |
| |
| if (mutex_lock_interruptible(&tdls_lock)) |
| { |
| VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR, |
| "%s: unable to lock list : %d", __func__, __LINE__); |
| return; |
| } |
| |
| if (NULL == pHddTdlsCtx) |
| { |
| mutex_unlock(&tdls_lock); |
| return; |
| } |
| |
| if (NULL == pHddTdlsCtx->pAdapter) |
| { |
| mutex_unlock(&tdls_lock); |
| return; |
| } |
| |
| pHddStaCtx = WLAN_HDD_GET_STATION_CTX_PTR(pHddTdlsCtx->pAdapter); |
| |
| VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_INFO, "%s: ", __func__); |
| |
| if (0 == pHddTdlsCtx->discovery_peer_cnt) |
| pHddTdlsCtx->discovery_peer_cnt = wlan_hdd_get_tdls_discovery_peer_cnt(pHddTdlsCtx); |
| |
| for (i = 0; i < 256; i++) { |
| head = &pHddTdlsCtx->peer_list[i]; |
| |
| list_for_each (pos, head) { |
| curr_peer = list_entry (pos, hddTdlsPeer_t, node); |
| |
| VOS_TRACE( VOS_MODULE_ID_HDD, TDLS_LOG_LEVEL, |
| "%d " MAC_ADDRESS_STR " %d %d, %d %d %d %d", i, |
| MAC_ADDR_ARRAY(curr_peer->peerMac), |
| curr_peer->discovery_processed, |
| discover_req_sent, |
| curr_peer->tdls_support, |
| curr_peer->link_status, |
| curr_peer->discovery_attempt, |
| pHddTdlsCtx->threshold_config.discovery_tries_n); |
| |
| if (discover_req_sent < TDLS_MAX_DISCOVER_REQS_PER_TIMER) { |
| if (!curr_peer->discovery_processed) { |
| |
| curr_peer->discovery_processed = 1; |
| discover_req_sent++; |
| pHddTdlsCtx->discovery_peer_cnt--; |
| |
| if ((eTDLS_CAP_UNKNOWN == curr_peer->tdls_support) && |
| (eTDLS_LINK_IDLE == curr_peer->link_status) && |
| (curr_peer->tx_pkt >= |
| pHddTdlsCtx->threshold_config.tx_packet_n)) { |
| |
| if (curr_peer->discovery_attempt < |
| pHddTdlsCtx->threshold_config.discovery_tries_n) { |
| sme_SendTdlsMgmtFrame(WLAN_HDD_GET_HAL_CTX(pHddTdlsCtx->pAdapter), |
| pHddTdlsCtx->pAdapter->sessionId, |
| curr_peer->peerMac, |
| WLAN_TDLS_DISCOVERY_REQUEST, |
| 1, 0, NULL, 0, 0); |
| curr_peer->discovery_attempt++; |
| } |
| else |
| { |
| VOS_TRACE(VOS_MODULE_ID_HDD, TDLS_LOG_LEVEL, |
| "%s: Maximum Discovery retries reached", __func__); |
| curr_peer->tdls_support = eTDLS_CAP_NOT_SUPPORTED; |
| } |
| |
| } |
| } |
| } |
| else |
| goto exit_loop; |
| } |
| } |
| exit_loop: |
| |
| if (0 != pHddTdlsCtx->discovery_peer_cnt) { |
| VOS_TRACE( VOS_MODULE_ID_HDD, TDLS_LOG_LEVEL, |
| "discovery_peer_cnt is %d , Starting SUB_DISCOVERY_TIMER", |
| pHddTdlsCtx->discovery_peer_cnt); |
| discover_expiry = TDLS_SUB_DISCOVERY_PERIOD; |
| doMutexLock = eANI_BOOLEAN_FALSE; |
| goto done; |
| } |
| discover_expiry = pHddTdlsCtx->threshold_config.discovery_period_t; |
| |
| wlan_hdd_tdls_peer_reset_discovery_processed(pHddTdlsCtx); |
| |
| mutex_unlock(&tdls_lock); |
| |
| /* Commenting out the following function as it was introducing |
| * a race condition when pHddTdlsCtx is deleted. Also , this |
| * function is consuming more time in the timer callback. |
| * RSSI based trigger needs to revisit this part of the code. |
| */ |
| |
| /* |
| * wlan_hdd_get_rssi(pAdapter, &pHddTdlsCtx->ap_rssi); |
| */ |
| |
| done: |
| wlan_hdd_tdls_start_peer_discover_timer(pHddTdlsCtx, doMutexLock, discover_expiry); |
| |
| if ( !doMutexLock ) |
| mutex_unlock(&tdls_lock); |
| return; |
| } |
| #endif |
| |
| static v_VOID_t wlan_hdd_tdls_update_peer_cb( v_PVOID_t userData ) |
| { |
| int i; |
| struct list_head *head; |
| struct list_head *pos; |
| hddTdlsPeer_t *curr_peer; |
| tdlsCtx_t *pHddTdlsCtx; |
| |
| if (mutex_lock_interruptible(&tdls_lock)) |
| { |
| VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR, |
| "%s: unable to lock list", __func__); |
| return; |
| } |
| pHddTdlsCtx = (tdlsCtx_t *)userData; |
| if (NULL == pHddTdlsCtx) |
| { |
| mutex_unlock(&tdls_lock); |
| return; |
| } |
| |
| if (NULL == pHddTdlsCtx->pAdapter) |
| { |
| mutex_unlock(&tdls_lock); |
| return; |
| } |
| |
| for (i = 0; i < 256; i++) { |
| head = &pHddTdlsCtx->peer_list[i]; |
| |
| list_for_each (pos, head) { |
| curr_peer = list_entry (pos, hddTdlsPeer_t, node); |
| |
| VOS_TRACE( VOS_MODULE_ID_HDD, TDLS_LOG_LEVEL, |
| "%s: " MAC_ADDRESS_STR " link_status %d" |
| " tdls_support %d", __func__, MAC_ADDR_ARRAY(curr_peer->peerMac), |
| curr_peer->link_status, curr_peer->tdls_support); |
| |
| if (eTDLS_CAP_SUPPORTED == curr_peer->tdls_support) { |
| VOS_TRACE( VOS_MODULE_ID_HDD, TDLS_LOG_LEVEL, |
| "tx %d, rx %d (thr.pkt %d/idle %d), rssi %d (thr.trig %d/hys %d/tear %d)", |
| curr_peer->tx_pkt, curr_peer->rx_pkt, |
| pHddTdlsCtx->threshold_config.tx_packet_n, |
| pHddTdlsCtx->threshold_config.idle_packet_n, |
| curr_peer->rssi, |
| pHddTdlsCtx->threshold_config.rssi_trigger_threshold, |
| pHddTdlsCtx->threshold_config.rssi_hysteresis, |
| pHddTdlsCtx->threshold_config.rssi_teardown_threshold); |
| |
| if ((eTDLS_LINK_IDLE == curr_peer->link_status) || |
| (eTDLS_LINK_DISCOVERING == curr_peer->link_status)){ |
| if (curr_peer->tx_pkt >= |
| pHddTdlsCtx->threshold_config.tx_packet_n) { |
| |
| if (HDD_MAX_NUM_TDLS_STA > wlan_hdd_tdlsConnectedPeers(pHddTdlsCtx->pAdapter)) |
| { |
| |
| VOS_TRACE( VOS_MODULE_ID_HDD, TDLS_LOG_LEVEL, "Tput trigger TDLS pre-setup"); |
| #ifdef CONFIG_TDLS_IMPLICIT |
| wlan_hdd_tdls_pre_setup_init_work(pHddTdlsCtx, curr_peer); |
| #endif |
| } |
| else |
| { |
| VOS_TRACE( VOS_MODULE_ID_HDD, TDLS_LOG_LEVEL, |
| "%s: Maximum peer connected already! %d", |
| __func__, wlan_hdd_tdlsConnectedPeers(pHddTdlsCtx->pAdapter) ); |
| } |
| goto next_peer; |
| } |
| } |
| else if (eTDLS_LINK_CONNECTED == curr_peer->link_status) { |
| if ((tANI_S32)curr_peer->rssi < |
| (tANI_S32)pHddTdlsCtx->threshold_config.rssi_teardown_threshold) { |
| |
| VOS_TRACE( VOS_MODULE_ID_HDD, |
| VOS_TRACE_LEVEL_WARN, |
| "Tear down - low RSSI: " MAC_ADDRESS_STR "!", |
| MAC_ADDR_ARRAY(curr_peer->peerMac)); |
| #ifdef CONFIG_TDLS_IMPLICIT |
| wlan_hdd_tdls_indicate_teardown(pHddTdlsCtx->pAdapter, |
| curr_peer, |
| eSIR_MAC_TDLS_TEARDOWN_UNSPEC_REASON); |
| #endif |
| goto next_peer; |
| } |
| |
| if ((curr_peer->tx_pkt < |
| pHddTdlsCtx->threshold_config.idle_packet_n) && |
| (curr_peer->rx_pkt < |
| pHddTdlsCtx->threshold_config.idle_packet_n)) { |
| if (VOS_TIMER_STATE_RUNNING != |
| vos_timer_getCurrentState(&curr_peer->peerIdleTimer)) { |
| VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_WARN, |
| "Tx/Rx Idle timer start: " MAC_ADDRESS_STR "!", |
| MAC_ADDR_ARRAY(curr_peer->peerMac)); |
| wlan_hdd_tdls_timer_restart(pHddTdlsCtx->pAdapter, |
| &curr_peer->peerIdleTimer, |
| pHddTdlsCtx->threshold_config.idle_timeout_t); |
| } |
| } else { |
| if (VOS_TIMER_STATE_RUNNING == |
| vos_timer_getCurrentState(&curr_peer->peerIdleTimer)) { |
| VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_WARN, |
| "Tx/Rx Idle timer stop: " MAC_ADDRESS_STR "!", |
| MAC_ADDR_ARRAY(curr_peer->peerMac)); |
| vos_timer_stop( &curr_peer->peerIdleTimer); |
| } |
| } |
| |
| // if (curr_peer->rssi < |
| // (pHddTdlsCtx->threshold_config.rssi_hysteresis + |
| // pHddTdlsCtx->ap_rssi)) { |
| // |
| //#ifdef CONFIG_TDLS_IMPLICIT |
| // cfg80211_tdls_oper_request(pHddTdlsCtx->dev, |
| // curr_peer->peerMac, |
| // NL80211_TDLS_TEARDOWN, FALSE, |
| // GFP_KERNEL); |
| //#endif |
| // } |
| } |
| } else if (eTDLS_CAP_UNKNOWN == curr_peer->tdls_support) { |
| if (!TDLS_IS_CONNECTED(curr_peer)) { |
| if (curr_peer->tx_pkt >= |
| pHddTdlsCtx->threshold_config.tx_packet_n) { |
| |
| if (curr_peer->discovery_attempt++ < |
| pHddTdlsCtx->threshold_config.discovery_tries_n) { |
| VOS_TRACE( VOS_MODULE_ID_HDD, TDLS_LOG_LEVEL, "TDLS UNKNOWN discover "); |
| #ifdef CONFIG_TDLS_IMPLICIT |
| wlan_hdd_tdls_pre_setup_init_work(pHddTdlsCtx, curr_peer); |
| #endif |
| } |
| else |
| { |
| curr_peer->tdls_support = eTDLS_CAP_NOT_SUPPORTED; |
| curr_peer->link_status = eTDLS_LINK_IDLE; |
| } |
| } |
| } |
| } |
| |
| next_peer: |
| curr_peer->tx_pkt = 0; |
| curr_peer->rx_pkt = 0; |
| } |
| } |
| |
| wlan_hdd_tdls_timer_restart(pHddTdlsCtx->pAdapter, |
| &pHddTdlsCtx->peerUpdateTimer, |
| pHddTdlsCtx->threshold_config.tx_period_t); |
| mutex_unlock(&tdls_lock); |
| } |
| |
| static v_VOID_t wlan_hdd_tdls_idle_cb( v_PVOID_t userData ) |
| { |
| #ifdef CONFIG_TDLS_IMPLICIT |
| hddTdlsPeer_t *curr_peer = (hddTdlsPeer_t *)userData; |
| |
| if (NULL == curr_peer) |
| { |
| VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR, |
| "%s: Invalid tdls idle timer expired", __func__); |
| return; |
| } |
| |
| VOS_TRACE(VOS_MODULE_ID_HDD, TDLS_LOG_LEVEL, |
| "%s: Tx/Rx Idle " MAC_ADDRESS_STR " tx_pkt: %d, rx_pkt: %d, idle_packet_n: %d\n", |
| __func__, MAC_ADDR_ARRAY(curr_peer->peerMac), |
| curr_peer->tx_pkt, |
| curr_peer->rx_pkt, |
| curr_peer->pHddTdlsCtx->threshold_config.idle_packet_n); |
| |
| if (mutex_lock_interruptible(&tdls_lock)) |
| { |
| VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR, |
| "%s: unable to lock list", __func__); |
| return; |
| } |
| |
| /* Check tx/rx statistics on this tdls link for recent activities and |
| * then decide whether to tear down the link or keep it. |
| */ |
| if ((curr_peer->tx_pkt >= curr_peer->pHddTdlsCtx->threshold_config.idle_packet_n) || (curr_peer->rx_pkt >= curr_peer->pHddTdlsCtx->threshold_config.idle_packet_n)) |
| { |
| /* this tdls link got back to normal, so keep it */ |
| VOS_TRACE(VOS_MODULE_ID_HDD, TDLS_LOG_LEVEL, |
| "%s: tdls link to " MAC_ADDRESS_STR " back to normal, will stay", |
| __func__, MAC_ADDR_ARRAY(curr_peer->peerMac)); |
| } |
| else |
| { |
| /* this tdls link needs to get torn down */ |
| VOS_TRACE(VOS_MODULE_ID_HDD, TDLS_LOG_LEVEL, |
| "%s: trigger tdls link to " MAC_ADDRESS_STR " down", |
| __func__, MAC_ADDR_ARRAY(curr_peer->peerMac)); |
| |
| wlan_hdd_tdls_indicate_teardown(curr_peer->pHddTdlsCtx->pAdapter, |
| curr_peer, |
| eSIR_MAC_TDLS_TEARDOWN_UNSPEC_REASON); |
| } |
| mutex_unlock(&tdls_lock); |
| #endif |
| } |
| |
| static v_VOID_t wlan_hdd_tdls_discovery_timeout_peer_cb(v_PVOID_t userData) |
| { |
| int i; |
| struct list_head *head; |
| hddTdlsPeer_t *tmp; |
| struct list_head *pos, *q; |
| tdlsCtx_t *pHddTdlsCtx; |
| |
| if (mutex_lock_interruptible(&tdls_lock)) |
| { |
| VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR, |
| "%s: unable to lock list", __func__); |
| return ; |
| } |
| pHddTdlsCtx = (tdlsCtx_t *)userData; |
| |
| if ( NULL == pHddTdlsCtx ) |
| { |
| mutex_unlock(&tdls_lock); |
| return ; |
| } |
| |
| for (i = 0; i < 256; i++) { |
| head = &pHddTdlsCtx->peer_list[i]; |
| list_for_each_safe (pos, q, head) { |
| tmp = list_entry(pos, hddTdlsPeer_t, node); |
| if (eTDLS_LINK_DISCOVERING == tmp->link_status) |
| { |
| VOS_TRACE( VOS_MODULE_ID_HDD, TDLS_LOG_LEVEL, |
| "%s: " MAC_ADDRESS_STR " to idle state", __func__, |
| MAC_ADDR_ARRAY(tmp->peerMac)); |
| tmp->link_status = eTDLS_LINK_IDLE; |
| } |
| } |
| } |
| |
| pHddTdlsCtx->discovery_sent_cnt = 0; |
| wlan_hdd_tdls_check_power_save_prohibited(pHddTdlsCtx->pAdapter); |
| |
| mutex_unlock(&tdls_lock); |
| |
| wlan_hdd_tdls_check_bmps(pHddTdlsCtx->pAdapter); |
| |
| return; |
| } |
| |
| static v_VOID_t wlan_hdd_tdls_initiator_wait_cb( v_PVOID_t userData ) |
| { |
| hddTdlsPeer_t *curr_peer = (hddTdlsPeer_t *)userData; |
| tdlsCtx_t *pHddTdlsCtx; |
| |
| if ( NULL == curr_peer ) |
| return; |
| |
| pHddTdlsCtx = curr_peer->pHddTdlsCtx; |
| |
| if ( NULL == pHddTdlsCtx ) |
| return; |
| |
| WLANTL_ResumeDataTx( (WLAN_HDD_GET_CTX(pHddTdlsCtx->pAdapter))->pvosContext, |
| (v_U8_t *)&curr_peer->staId); |
| } |
| |
| static void wlan_hdd_tdls_free_list(tdlsCtx_t *pHddTdlsCtx) |
| { |
| int i; |
| struct list_head *head; |
| hddTdlsPeer_t *tmp; |
| struct list_head *pos, *q; |
| |
| if (NULL == pHddTdlsCtx) return; |
| |
| |
| for (i = 0; i < 256; i++) { |
| head = &pHddTdlsCtx->peer_list[i]; |
| list_for_each_safe (pos, q, head) { |
| tmp = list_entry(pos, hddTdlsPeer_t, node); |
| list_del(pos); |
| vos_mem_free(tmp); |
| } |
| } |
| } |
| |
| int wlan_hdd_tdls_init(hdd_adapter_t *pAdapter) |
| { |
| hdd_context_t *pHddCtx = WLAN_HDD_GET_CTX( pAdapter ); |
| tdlsCtx_t *pHddTdlsCtx; |
| int i; |
| v_U8_t staIdx; |
| |
| mutex_init(&tdls_lock); |
| |
| if ((FALSE == pHddCtx->cfg_ini->fEnableTDLSSupport) || |
| (FALSE == sme_IsFeatureSupportedByFW(TDLS))) |
| { |
| pHddCtx->tdls_mode = eTDLS_SUPPORT_NOT_ENABLED; |
| pAdapter->sessionCtx.station.pHddTdlsCtx = NULL; |
| hddLog(VOS_TRACE_LEVEL_ERROR, "%s TDLS not enabled (%d) or FW doesn't support (%d)!", |
| __func__, pHddCtx->cfg_ini->fEnableTDLSSupport, |
| sme_IsFeatureSupportedByFW(TDLS)); |
| return 0; |
| } |
| |
| pHddTdlsCtx = vos_mem_malloc(sizeof(tdlsCtx_t)); |
| |
| if (NULL == pHddTdlsCtx) { |
| hddLog(VOS_TRACE_LEVEL_ERROR, "%s malloc failed!", __func__); |
| pAdapter->sessionCtx.station.pHddTdlsCtx = NULL; |
| return -1; |
| } |
| |
| pAdapter->sessionCtx.station.pHddTdlsCtx = pHddTdlsCtx; |
| |
| /* initialize TDLS global context */ |
| pHddCtx->connected_peer_count = 0; |
| sme_SetTdlsPowerSaveProhibited(WLAN_HDD_GET_HAL_CTX(pAdapter), |
| pAdapter->sessionId, 0); |
| |
| pHddCtx->tdls_scan_ctxt.magic = 0; |
| pHddCtx->tdls_scan_ctxt.attempt = 0; |
| pHddCtx->tdls_scan_ctxt.reject = 0; |
| pHddCtx->tdls_scan_ctxt.scan_request = NULL; |
| |
| for (staIdx = 0; staIdx < HDD_MAX_NUM_TDLS_STA; staIdx++) |
| { |
| pHddCtx->tdlsConnInfo[staIdx].staId = 0; |
| pHddCtx->tdlsConnInfo[staIdx].sessionId = 255; |
| vos_mem_zero(&pHddCtx->tdlsConnInfo[staIdx].peerMac, |
| sizeof(v_MACADDR_t)) ; |
| } |
| |
| /* initialize TDLS pAdater context */ |
| vos_mem_zero(pHddTdlsCtx, sizeof(tdlsCtx_t)); |
| |
| pHddTdlsCtx->pAdapter = pAdapter; |
| |
| for (i = 0; i < 256; i++) |
| { |
| INIT_LIST_HEAD(&pHddTdlsCtx->peer_list[i]); |
| } |
| |
| pHddTdlsCtx->curr_candidate = NULL; |
| pHddTdlsCtx->magic = 0; |
| |
| #ifdef TDLS_USE_SEPARATE_DISCOVERY_TIMER |
| vos_timer_init(&pHddTdlsCtx->peerDiscoverTimer, |
| VOS_TIMER_TYPE_SW, |
| wlan_hdd_tdls_discover_peer_cb, |
| pHddTdlsCtx); |
| #endif |
| |
| vos_timer_init(&pHddTdlsCtx->peerUpdateTimer, |
| VOS_TIMER_TYPE_SW, |
| wlan_hdd_tdls_update_peer_cb, |
| pHddTdlsCtx); |
| vos_timer_init(&pHddTdlsCtx->peerDiscoveryTimeoutTimer, |
| VOS_TIMER_TYPE_SW, |
| wlan_hdd_tdls_discovery_timeout_peer_cb, |
| pHddTdlsCtx); |
| |
| /* remember configuration even if it is not used right now. it could be used later */ |
| pHddTdlsCtx->threshold_config.tx_period_t = pHddCtx->cfg_ini->fTDLSTxStatsPeriod; |
| pHddTdlsCtx->threshold_config.tx_packet_n = pHddCtx->cfg_ini->fTDLSTxPacketThreshold; |
| pHddTdlsCtx->threshold_config.discovery_period_t = pHddCtx->cfg_ini->fTDLSDiscoveryPeriod; |
| pHddTdlsCtx->threshold_config.discovery_tries_n = pHddCtx->cfg_ini->fTDLSMaxDiscoveryAttempt; |
| pHddTdlsCtx->threshold_config.idle_timeout_t = pHddCtx->cfg_ini->fTDLSIdleTimeout; |
| pHddTdlsCtx->threshold_config.idle_packet_n = pHddCtx->cfg_ini->fTDLSIdlePacketThreshold; |
| pHddTdlsCtx->threshold_config.rssi_hysteresis = pHddCtx->cfg_ini->fTDLSRSSIHysteresis; |
| pHddTdlsCtx->threshold_config.rssi_trigger_threshold = pHddCtx->cfg_ini->fTDLSRSSITriggerThreshold; |
| pHddTdlsCtx->threshold_config.rssi_teardown_threshold = pHddCtx->cfg_ini->fTDLSRSSITeardownThreshold; |
| |
| if (FALSE == pHddCtx->cfg_ini->fEnableTDLSImplicitTrigger) |
| { |
| pHddCtx->tdls_mode = eTDLS_SUPPORT_EXPLICIT_TRIGGER_ONLY; |
| hddLog(VOS_TRACE_LEVEL_ERROR, "%s TDLS Implicit trigger not enabled!", __func__); |
| } |
| else |
| { |
| pHddCtx->tdls_mode = eTDLS_SUPPORT_ENABLED; |
| } |
| |
| return 0; |
| } |
| |
| void wlan_hdd_tdls_exit(hdd_adapter_t *pAdapter) |
| { |
| tdlsCtx_t *pHddTdlsCtx; |
| hdd_context_t *pHddCtx; |
| |
| if (mutex_lock_interruptible(&tdls_lock)) |
| { |
| VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR, |
| "%s: unable to lock list", __func__); |
| return; |
| } |
| |
| pHddCtx = WLAN_HDD_GET_CTX( pAdapter ); |
| if (NULL == pHddCtx) |
| { |
| mutex_unlock(&tdls_lock); |
| return; |
| } |
| |
| pHddTdlsCtx = WLAN_HDD_GET_TDLS_CTX_PTR(pAdapter); |
| if (NULL == pHddTdlsCtx) |
| { |
| mutex_unlock(&tdls_lock); |
| hddLog(VOS_TRACE_LEVEL_WARN, "%s TDLS not enabled, exiting!", __func__); |
| return; |
| } |
| |
| /* must stop timer here before freeing peer list, because peerIdleTimer is |
| part of peer list structure. */ |
| wlan_hdd_tdls_timers_destroy(pHddTdlsCtx); |
| wlan_hdd_tdls_free_list(pHddTdlsCtx); |
| |
| wlan_hdd_tdls_free_scan_request(&pHddCtx->tdls_scan_ctxt); |
| |
| vos_mem_free(pHddTdlsCtx); |
| pHddTdlsCtx = NULL; |
| mutex_unlock(&tdls_lock); |
| } |
| |
| /* stop all the tdls timers running */ |
| static void wlan_hdd_tdls_timers_stop(tdlsCtx_t *pHddTdlsCtx) |
| { |
| int i; |
| struct list_head *head; |
| struct list_head *pos; |
| hddTdlsPeer_t *curr_peer; |
| |
| #ifdef TDLS_USE_SEPARATE_DISCOVERY_TIMER |
| vos_timer_stop(&pHddTdlsCtx->peerDiscoverTimer); |
| #endif |
| vos_timer_stop(&pHddTdlsCtx->peerUpdateTimer); |
| vos_timer_stop(&pHddTdlsCtx->peerDiscoveryTimeoutTimer); |
| |
| for (i = 0; i < 256; i++) |
| { |
| head = &pHddTdlsCtx->peer_list[i]; |
| |
| list_for_each (pos, head) { |
| curr_peer = list_entry (pos, hddTdlsPeer_t, node); |
| |
| VOS_TRACE( VOS_MODULE_ID_HDD, TDLS_LOG_LEVEL, |
| "%s: " MAC_ADDRESS_STR " -> stop idle timer", |
| __func__, |
| MAC_ADDR_ARRAY(curr_peer->peerMac)); |
| vos_timer_stop ( &curr_peer->peerIdleTimer ); |
| vos_timer_stop( &curr_peer->initiatorWaitTimeoutTimer ); |
| } |
| } |
| } |
| |
| /* destroy all the tdls timers running */ |
| static void wlan_hdd_tdls_timers_destroy(tdlsCtx_t *pHddTdlsCtx) |
| { |
| int i; |
| struct list_head *head; |
| struct list_head *pos; |
| hddTdlsPeer_t *curr_peer; |
| |
| #ifdef TDLS_USE_SEPARATE_DISCOVERY_TIMER |
| vos_timer_stop(&pHddTdlsCtx->peerDiscoverTimer); |
| vos_timer_destroy(&pHddTdlsCtx->peerDiscoverTimer); |
| #endif |
| vos_timer_stop(&pHddTdlsCtx->peerUpdateTimer); |
| vos_timer_destroy(&pHddTdlsCtx->peerUpdateTimer); |
| vos_timer_stop(&pHddTdlsCtx->peerDiscoveryTimeoutTimer); |
| vos_timer_destroy(&pHddTdlsCtx->peerDiscoveryTimeoutTimer); |
| |
| for (i = 0; i < 256; i++) |
| { |
| head = &pHddTdlsCtx->peer_list[i]; |
| |
| list_for_each (pos, head) { |
| curr_peer = list_entry (pos, hddTdlsPeer_t, node); |
| |
| VOS_TRACE( VOS_MODULE_ID_HDD, TDLS_LOG_LEVEL, |
| "%s: " MAC_ADDRESS_STR " -> destroy idle timer", |
| __func__, |
| MAC_ADDR_ARRAY(curr_peer->peerMac)); |
| vos_timer_stop ( &curr_peer->peerIdleTimer ); |
| vos_timer_destroy ( &curr_peer->peerIdleTimer ); |
| vos_timer_stop(&curr_peer->initiatorWaitTimeoutTimer); |
| vos_timer_destroy(&curr_peer->initiatorWaitTimeoutTimer); |
| } |
| } |
| } |
| |
| /* if mac address exist, return pointer |
| if mac address doesn't exist, create a list and add, return pointer |
| return NULL if fails to get new mac address |
| */ |
| hddTdlsPeer_t *wlan_hdd_tdls_get_peer(hdd_adapter_t *pAdapter, u8 *mac) |
| { |
| struct list_head *head; |
| hddTdlsPeer_t *peer; |
| u8 key; |
| tdlsCtx_t *pHddTdlsCtx; |
| |
| /* if already there, just update */ |
| peer = wlan_hdd_tdls_find_peer(pAdapter, mac); |
| if (peer != NULL) |
| { |
| return peer; |
| } |
| |
| /* not found, allocate and add the list */ |
| peer = vos_mem_malloc(sizeof(hddTdlsPeer_t)); |
| if (NULL == peer) { |
| hddLog(VOS_TRACE_LEVEL_ERROR, "%s peer malloc failed!", __func__); |
| return NULL; |
| } |
| |
| if (mutex_lock_interruptible(&tdls_lock)) |
| { |
| VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR, |
| "%s: unable to lock list", __func__); |
| vos_mem_free(peer); |
| return NULL; |
| } |
| pHddTdlsCtx = WLAN_HDD_GET_TDLS_CTX_PTR(pAdapter); |
| |
| if (NULL == pHddTdlsCtx) |
| { |
| vos_mem_free(peer); |
| mutex_unlock(&tdls_lock); |
| return NULL; |
| } |
| |
| key = wlan_hdd_tdls_hash_key(mac); |
| head = &pHddTdlsCtx->peer_list[key]; |
| |
| vos_mem_zero(peer, sizeof(hddTdlsPeer_t)); |
| vos_mem_copy(peer->peerMac, mac, sizeof(peer->peerMac)); |
| peer->pHddTdlsCtx = pHddTdlsCtx; |
| |
| vos_timer_init(&peer->peerIdleTimer, |
| VOS_TIMER_TYPE_SW, |
| wlan_hdd_tdls_idle_cb, |
| peer); |
| |
| vos_timer_init(&peer->initiatorWaitTimeoutTimer, |
| VOS_TIMER_TYPE_SW, |
| wlan_hdd_tdls_initiator_wait_cb, |
| peer); |
| |
| list_add_tail(&peer->node, head); |
| mutex_unlock(&tdls_lock); |
| |
| return peer; |
| } |
| |
| int wlan_hdd_tdls_set_cap(hdd_adapter_t *pAdapter, |
| u8* mac, |
| tTDLSCapType cap) |
| { |
| hddTdlsPeer_t *curr_peer; |
| |
| curr_peer = wlan_hdd_tdls_get_peer(pAdapter, mac); |
| if (curr_peer == NULL) |
| return -1; |
| |
| curr_peer->tdls_support = cap; |
| |
| return 0; |
| } |
| |
| void wlan_hdd_tdls_set_peer_link_status(hddTdlsPeer_t *curr_peer, tTDLSLinkStatus status) |
| { |
| if (curr_peer == NULL) |
| return; |
| |
| hddLog(VOS_TRACE_LEVEL_WARN, "tdls set peer " MAC_ADDRESS_STR " link status to %u", |
| MAC_ADDR_ARRAY(curr_peer->peerMac), status); |
| |
| curr_peer->link_status = status; |
| |
| } |
| |
| void wlan_hdd_tdls_set_link_status(hdd_adapter_t *pAdapter, |
| u8* mac, |
| tTDLSLinkStatus linkStatus) |
| { |
| hddTdlsPeer_t *curr_peer; |
| |
| curr_peer = wlan_hdd_tdls_find_peer(pAdapter, mac); |
| if (curr_peer == NULL) |
| return; |
| |
| curr_peer->link_status= linkStatus; |
| |
| return; |
| } |
| |
| int wlan_hdd_tdls_recv_discovery_resp(hdd_adapter_t *pAdapter, u8 *mac) |
| { |
| hddTdlsPeer_t *curr_peer; |
| tdlsCtx_t *pHddTdlsCtx = WLAN_HDD_GET_TDLS_CTX_PTR(pAdapter); |
| |
| curr_peer = wlan_hdd_tdls_get_peer(pAdapter, mac); |
| |
| if (NULL == curr_peer) |
| return -1; |
| |
| if (pHddTdlsCtx->discovery_sent_cnt) |
| pHddTdlsCtx->discovery_sent_cnt--; |
| |
| wlan_hdd_tdls_check_power_save_prohibited(pAdapter); |
| if (0 == pHddTdlsCtx->discovery_sent_cnt) |
| { |
| vos_timer_stop(&pHddTdlsCtx->peerDiscoveryTimeoutTimer); |
| } |
| |
| VOS_TRACE( VOS_MODULE_ID_HDD, TDLS_LOG_LEVEL, |
| "Discovery(%lu) Response from " MAC_ADDRESS_STR " link_status %d", |
| pHddTdlsCtx->discovery_sent_cnt, MAC_ADDR_ARRAY(curr_peer->peerMac), |
| curr_peer->link_status); |
| |
| if (eTDLS_LINK_DISCOVERING == curr_peer->link_status) |
| { |
| /* Since we are here, it means Throughput threshold is alredy met. Make sure RSSI |
| threshold is also met before setting up TDLS link*/ |
| if ((tANI_S32) curr_peer->rssi > (tANI_S32) pHddTdlsCtx->threshold_config.rssi_trigger_threshold) |
| { |
| curr_peer->link_status = eTDLS_LINK_DISCOVERED; |
| VOS_TRACE( VOS_MODULE_ID_HDD, TDLS_LOG_LEVEL, |
| "Rssi Threshold met: "MAC_ADDRESS_STR" rssi = %d threshold= %d" , |
| MAC_ADDR_ARRAY(curr_peer->peerMac), curr_peer->rssi, |
| pHddTdlsCtx->threshold_config.rssi_trigger_threshold); |
| cfg80211_tdls_oper_request(pAdapter->dev, curr_peer->peerMac, NL80211_TDLS_SETUP, FALSE, GFP_KERNEL); |
| } |
| else |
| { |
| VOS_TRACE( VOS_MODULE_ID_HDD, TDLS_LOG_LEVEL, |
| "Rssi Threshold not met: "MAC_ADDRESS_STR" rssi = %d threshold = %d ", |
| MAC_ADDR_ARRAY(curr_peer->peerMac), curr_peer->rssi, |
| pHddTdlsCtx->threshold_config.rssi_trigger_threshold); |
| curr_peer->link_status = eTDLS_LINK_IDLE; |
| } |
| } |
| else |
| { |
| wlan_hdd_tdls_check_bmps(pAdapter); |
| } |
| |
| curr_peer->tdls_support = eTDLS_CAP_SUPPORTED; |
| return 0; |
| } |
| |
| int wlan_hdd_tdls_set_rssi(hdd_adapter_t *pAdapter, u8 *mac, tANI_S8 rxRssi) |
| { |
| hddTdlsPeer_t *curr_peer; |
| |
| curr_peer = wlan_hdd_tdls_find_peer(pAdapter, mac); |
| if (curr_peer == NULL) |
| return -1; |
| |
| curr_peer->rssi = rxRssi; |
| |
| return 0; |
| } |
| |
| int wlan_hdd_tdls_set_responder(hdd_adapter_t *pAdapter, u8 *mac, tANI_U8 responder) |
| { |
| hddTdlsPeer_t *curr_peer; |
| |
| curr_peer = wlan_hdd_tdls_get_peer(pAdapter, mac); |
| if (curr_peer == NULL) |
| return -1; |
| |
| curr_peer->is_responder = responder; |
| |
| return 0; |
| } |
| |
| int wlan_hdd_tdls_get_responder(hdd_adapter_t *pAdapter, u8 *mac) |
| { |
| hddTdlsPeer_t *curr_peer; |
| |
| curr_peer = wlan_hdd_tdls_find_peer(pAdapter, mac); |
| if (curr_peer == NULL) |
| return -1; |
| |
| return (curr_peer->is_responder); |
| } |
| |
| int wlan_hdd_tdls_set_signature(hdd_adapter_t *pAdapter, u8 *mac, tANI_U8 uSignature) |
| { |
| hddTdlsPeer_t *curr_peer; |
| |
| curr_peer = wlan_hdd_tdls_get_peer(pAdapter, mac); |
| if (curr_peer == NULL) |
| return -1; |
| |
| curr_peer->signature = uSignature; |
| |
| return 0; |
| } |
| |
| |
| void wlan_hdd_tdls_extract_da(struct sk_buff *skb, u8 *mac) |
| { |
| memcpy(mac, skb->data, 6); |
| } |
| |
| void wlan_hdd_tdls_extract_sa(struct sk_buff *skb, u8 *mac) |
| { |
| memcpy(mac, skb->data+6, 6); |
| } |
| |
| int wlan_hdd_tdls_increment_pkt_count(hdd_adapter_t *pAdapter, u8 *mac, u8 tx) |
| { |
| hddTdlsPeer_t *curr_peer; |
| hdd_context_t *pHddCtx = WLAN_HDD_GET_CTX(pAdapter); |
| |
| if (eTDLS_SUPPORT_ENABLED != pHddCtx->tdls_mode) |
| return -1; |
| |
| curr_peer = wlan_hdd_tdls_get_peer(pAdapter, mac); |
| if (curr_peer == NULL) |
| return -1; |
| |
| if (tx) |
| curr_peer->tx_pkt++; |
| else |
| curr_peer->rx_pkt++; |
| |
| return 0; |
| } |
| |
| static int wlan_hdd_tdls_check_config(tdls_config_params_t *config) |
| { |
| if (config->tdls > 2) |
| { |
| hddLog(VOS_TRACE_LEVEL_ERROR, "%s invalid 1st argument %d. <0...2>", __func__, config->tdls); |
| return -1; |
| } |
| if (config->tx_period_t < CFG_TDLS_TX_STATS_PERIOD_MIN || |
| config->tx_period_t > CFG_TDLS_TX_STATS_PERIOD_MAX) |
| { |
| hddLog(VOS_TRACE_LEVEL_ERROR, "%s invalid 2nd argument %d. <%d...%d>", __func__, config->tx_period_t, |
| CFG_TDLS_TX_STATS_PERIOD_MIN, CFG_TDLS_TX_STATS_PERIOD_MAX); |
| return -1; |
| } |
| if (config->tx_packet_n < CFG_TDLS_TX_PACKET_THRESHOLD_MIN || |
| config->tx_packet_n > CFG_TDLS_TX_PACKET_THRESHOLD_MAX) |
| { |
| hddLog(VOS_TRACE_LEVEL_ERROR, "%s invalid 3rd argument %d. <%d...%d>", __func__, config->tx_packet_n, |
| CFG_TDLS_TX_PACKET_THRESHOLD_MIN, CFG_TDLS_TX_PACKET_THRESHOLD_MAX); |
| return -1; |
| } |
| if (config->discovery_period_t < CFG_TDLS_DISCOVERY_PERIOD_MIN || |
| config->discovery_period_t > CFG_TDLS_DISCOVERY_PERIOD_MAX) |
| { |
| hddLog(VOS_TRACE_LEVEL_ERROR, "%s invalid 4th argument %d. <%d...%d>", __func__, config->discovery_period_t, |
| CFG_TDLS_DISCOVERY_PERIOD_MIN, CFG_TDLS_DISCOVERY_PERIOD_MAX); |
| return -1; |
| } |
| if (config->discovery_tries_n < CFG_TDLS_MAX_DISCOVERY_ATTEMPT_MIN || |
| config->discovery_tries_n > CFG_TDLS_MAX_DISCOVERY_ATTEMPT_MAX) |
| { |
| hddLog(VOS_TRACE_LEVEL_ERROR, "%s invalid 5th argument %d. <%d...%d>", __func__, config->discovery_tries_n, |
| CFG_TDLS_MAX_DISCOVERY_ATTEMPT_MIN, CFG_TDLS_MAX_DISCOVERY_ATTEMPT_MAX); |
| return -1; |
| } |
| if (config->idle_timeout_t < CFG_TDLS_IDLE_TIMEOUT_MIN || |
| config->idle_timeout_t > CFG_TDLS_IDLE_TIMEOUT_MAX) |
| { |
| hddLog(VOS_TRACE_LEVEL_ERROR, "%s invalid 6th argument %d. <%d...%d>", __func__, config->idle_timeout_t, |
| CFG_TDLS_IDLE_TIMEOUT_MIN, CFG_TDLS_IDLE_TIMEOUT_MAX); |
| return -1; |
| } |
| if (config->idle_packet_n < CFG_TDLS_IDLE_PACKET_THRESHOLD_MIN || |
| config->idle_packet_n > CFG_TDLS_IDLE_PACKET_THRESHOLD_MAX) |
| { |
| hddLog(VOS_TRACE_LEVEL_ERROR, "%s invalid 7th argument %d. <%d...%d>", __func__, config->idle_packet_n, |
| CFG_TDLS_IDLE_PACKET_THRESHOLD_MIN, CFG_TDLS_IDLE_PACKET_THRESHOLD_MAX); |
| return -1; |
| } |
| if (config->rssi_hysteresis < CFG_TDLS_RSSI_HYSTERESIS_MIN || |
| config->rssi_hysteresis > CFG_TDLS_RSSI_HYSTERESIS_MAX) |
| { |
| hddLog(VOS_TRACE_LEVEL_ERROR, "%s invalid 8th argument %d. <%d...%d>", __func__, config->rssi_hysteresis, |
| CFG_TDLS_RSSI_HYSTERESIS_MIN, CFG_TDLS_RSSI_HYSTERESIS_MAX); |
| return -1; |
| } |
| if (config->rssi_trigger_threshold < CFG_TDLS_RSSI_TRIGGER_THRESHOLD_MIN || |
| config->rssi_trigger_threshold > CFG_TDLS_RSSI_TRIGGER_THRESHOLD_MAX) |
| { |
| hddLog(VOS_TRACE_LEVEL_ERROR, "%s invalid 9th argument %d. <%d...%d>", __func__, config->rssi_trigger_threshold, |
| CFG_TDLS_RSSI_TRIGGER_THRESHOLD_MIN, CFG_TDLS_RSSI_TRIGGER_THRESHOLD_MAX); |
| return -1; |
| } |
| if (config->rssi_teardown_threshold < CFG_TDLS_RSSI_TEARDOWN_THRESHOLD_MIN || |
| config->rssi_teardown_threshold > CFG_TDLS_RSSI_TEARDOWN_THRESHOLD_MAX) |
| { |
| hddLog(VOS_TRACE_LEVEL_ERROR, "%s invalid 10th argument %d. <%d...%d>", __func__, config->rssi_teardown_threshold, |
| CFG_TDLS_RSSI_TEARDOWN_THRESHOLD_MIN, CFG_TDLS_RSSI_TEARDOWN_THRESHOLD_MAX); |
| return -1; |
| } |
| return 0; |
| } |
| |
| int wlan_hdd_tdls_set_params(struct net_device *dev, tdls_config_params_t *config) |
| { |
| hdd_adapter_t *pAdapter = WLAN_HDD_GET_PRIV_PTR(dev); |
| hdd_context_t *pHddCtx = WLAN_HDD_GET_CTX( pAdapter ); |
| tdlsCtx_t *pHddTdlsCtx = WLAN_HDD_GET_TDLS_CTX_PTR(pAdapter); |
| eTDLSSupportMode req_tdls_mode; |
| |
| if (NULL == pHddTdlsCtx) |
| { |
| hddLog(VOS_TRACE_LEVEL_ERROR, "%s TDLS not enabled!", __func__); |
| return -1; |
| } |
| |
| if (wlan_hdd_tdls_check_config(config) != 0) |
| { |
| return -1; |
| } |
| |
| /* config->tdls is mapped to 0->1, 1->2, 2->3 */ |
| req_tdls_mode = config->tdls + 1; |
| if (pHddCtx->tdls_mode == req_tdls_mode) |
| { |
| hddLog(VOS_TRACE_LEVEL_ERROR, "%s already in mode %d", __func__, config->tdls); |
| return -1; |
| } |
| |
| /* copy the configuration only when given tdls mode is implicit trigger enable */ |
| if (eTDLS_SUPPORT_ENABLED == req_tdls_mode) |
| { |
| memcpy(&pHddTdlsCtx->threshold_config, config, sizeof(tdls_config_params_t)); |
| } |
| |
| VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR, |
| "iw set tdls params: %d %d %d %d %d %d %d %d %d %d", |
| config->tdls, |
| config->tx_period_t, |
| config->tx_packet_n, |
| config->discovery_period_t, |
| config->discovery_tries_n, |
| config->idle_timeout_t, |
| config->idle_packet_n, |
| config->rssi_hysteresis, |
| config->rssi_trigger_threshold, |
| config->rssi_teardown_threshold); |
| |
| wlan_hdd_tdls_set_mode(pHddCtx, req_tdls_mode, TRUE); |
| |
| return 0; |
| } |
| |
| int wlan_hdd_tdls_set_sta_id(hdd_adapter_t *pAdapter, u8 *mac, u8 staId) |
| { |
| hddTdlsPeer_t *curr_peer; |
| |
| curr_peer = wlan_hdd_tdls_get_peer(pAdapter, mac); |
| if (curr_peer == NULL) |
| return -1; |
| |
| curr_peer->staId = staId; |
| |
| return 0; |
| } |
| |
| /* if peerMac is found, then it returns pointer to hddTdlsPeer_t |
| otherwise, it returns NULL |
| */ |
| hddTdlsPeer_t *wlan_hdd_tdls_find_peer(hdd_adapter_t *pAdapter, u8 *mac) |
| { |
| u8 key; |
| struct list_head *pos; |
| struct list_head *head; |
| hddTdlsPeer_t *curr_peer; |
| tdlsCtx_t *pHddTdlsCtx; |
| |
| |
| if (mutex_lock_interruptible(&tdls_lock)) |
| { |
| VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR, |
| "%s: unable to lock list", __func__); |
| return NULL; |
| } |
| pHddTdlsCtx = WLAN_HDD_GET_TDLS_CTX_PTR(pAdapter); |
| if (NULL == pHddTdlsCtx) |
| { |
| mutex_unlock(&tdls_lock); |
| return NULL; |
| } |
| |
| key = wlan_hdd_tdls_hash_key(mac); |
| |
| head = &pHddTdlsCtx->peer_list[key]; |
| |
| list_for_each(pos, head) { |
| curr_peer = list_entry (pos, hddTdlsPeer_t, node); |
| if (!memcmp(mac, curr_peer->peerMac, 6)) { |
| VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_INFO, |
| "findTdlsPeer: found staId %d", curr_peer->staId); |
| mutex_unlock(&tdls_lock); |
| return curr_peer; |
| } |
| } |
| |
| mutex_unlock(&tdls_lock); |
| return NULL; |
| } |
| |
| hddTdlsPeer_t *wlan_hdd_tdls_find_all_peer(hdd_context_t *pHddCtx, u8 *mac) |
| { |
| hdd_adapter_list_node_t *pAdapterNode = NULL, *pNext = NULL; |
| hdd_adapter_t *pAdapter = NULL; |
| tdlsCtx_t *pHddTdlsCtx = NULL; |
| hddTdlsPeer_t *curr_peer= NULL; |
| VOS_STATUS status = 0; |
| |
| status = hdd_get_front_adapter ( pHddCtx, &pAdapterNode ); |
| while ( NULL != pAdapterNode && VOS_STATUS_SUCCESS == status ) |
| { |
| pAdapter = pAdapterNode->pAdapter; |
| |
| pHddTdlsCtx = WLAN_HDD_GET_TDLS_CTX_PTR(pAdapter); |
| if (NULL != pHddTdlsCtx) |
| { |
| curr_peer = wlan_hdd_tdls_find_peer(pAdapter, mac); |
| if (curr_peer) |
| return curr_peer; |
| } |
| status = hdd_get_next_adapter ( pHddCtx, pAdapterNode, &pNext ); |
| pAdapterNode = pNext; |
| } |
| return curr_peer; |
| } |
| |
| |
| int wlan_hdd_tdls_reset_peer(hdd_adapter_t *pAdapter, u8 *mac) |
| { |
| hdd_context_t *pHddCtx; |
| hddTdlsPeer_t *curr_peer; |
| |
| pHddCtx = WLAN_HDD_GET_CTX( pAdapter ); |
| |
| curr_peer = wlan_hdd_tdls_get_peer(pAdapter, mac); |
| if (curr_peer == NULL) |
| return -1; |
| |
| curr_peer->link_status = eTDLS_LINK_IDLE; |
| curr_peer->staId = 0; |
| |
| if(eTDLS_SUPPORT_ENABLED == pHddCtx->tdls_mode) { |
| vos_timer_stop( &curr_peer->peerIdleTimer ); |
| } |
| return 0; |
| } |
| |
| /* Caller has to take the lock before calling this function */ |
| static void wlan_tdd_tdls_reset_tx_rx(tdlsCtx_t *pHddTdlsCtx) |
| { |
| int i; |
| struct list_head *head; |
| hddTdlsPeer_t *tmp; |
| struct list_head *pos, *q; |
| |
| for (i = 0; i < 256; i++) { |
| head = &pHddTdlsCtx->peer_list[i]; |
| list_for_each_safe (pos, q, head) { |
| tmp = list_entry(pos, hddTdlsPeer_t, node); |
| tmp->tx_pkt = 0; |
| tmp->rx_pkt = 0; |
| } |
| } |
| |
| return ; |
| } |
| |
| /* Caller has to take the lock before calling this function */ |
| static tANI_S32 wlan_hdd_tdls_peer_reset_discovery_processed(tdlsCtx_t *pHddTdlsCtx) |
| { |
| int i; |
| struct list_head *head; |
| hddTdlsPeer_t *tmp; |
| struct list_head *pos, *q; |
| |
| pHddTdlsCtx->discovery_peer_cnt = 0; |
| |
| for (i = 0; i < 256; i++) { |
| head = &pHddTdlsCtx->peer_list[i]; |
| list_for_each_safe (pos, q, head) { |
| tmp = list_entry(pos, hddTdlsPeer_t, node); |
| tmp->discovery_processed = 0; |
| } |
| } |
| |
| return 0; |
| } |
| |
| static tANI_S32 wlan_hdd_get_tdls_discovery_peer_cnt(tdlsCtx_t *pHddTdlsCtx) |
| { |
| int i; |
| struct list_head *head; |
| struct list_head *pos, *q; |
| int discovery_peer_cnt=0; |
| hddTdlsPeer_t *tmp; |
| |
| /* |
| * This function expects the callers to acquire the Mutex. |
| */ |
| |
| for (i = 0; i < 256; i++) { |
| head = &pHddTdlsCtx->peer_list[i]; |
| list_for_each_safe (pos, q, head) { |
| tmp = list_entry(pos, hddTdlsPeer_t, node); |
| VOS_TRACE(VOS_MODULE_ID_HDD, TDLS_LOG_LEVEL, |
| "%s, %d, " MAC_ADDRESS_STR, __func__, i, |
| MAC_ADDR_ARRAY(tmp->peerMac)); |
| discovery_peer_cnt++; |
| } |
| } |
| return discovery_peer_cnt; |
| } |
| |
| tANI_U16 wlan_hdd_tdlsConnectedPeers(hdd_adapter_t *pAdapter) |
| { |
| hdd_context_t *pHddCtx = WLAN_HDD_GET_CTX(pAdapter); |
| |
| if (NULL == pHddCtx) |
| return 0; |
| |
| return pHddCtx->connected_peer_count; |
| } |
| |
| int wlan_hdd_tdls_get_all_peers(hdd_adapter_t *pAdapter, char *buf, int buflen) |
| { |
| int i; |
| int len, init_len; |
| struct list_head *head; |
| struct list_head *pos; |
| hddTdlsPeer_t *curr_peer; |
| tdlsCtx_t *pHddTdlsCtx; |
| |
| |
| init_len = buflen; |
| len = snprintf(buf, buflen, "\n%-18s%-3s%-4s%-3s%-5s\n", "MAC", "Id", "cap", "up", "RSSI"); |
| buf += len; |
| buflen -= len; |
| /* 1234567890123456789012345678901234567 */ |
| len = snprintf(buf, buflen, "---------------------------------\n"); |
| buf += len; |
| buflen -= len; |
| |
| if (mutex_lock_interruptible(&tdls_lock)) |
| { |
| VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR, |
| "%s: unable to lock list", __func__); |
| return init_len-buflen; |
| } |
| pHddTdlsCtx = WLAN_HDD_GET_TDLS_CTX_PTR(pAdapter); |
| if (NULL == pHddTdlsCtx) { |
| mutex_unlock(&tdls_lock); |
| len = snprintf(buf, buflen, "TDLS not enabled\n"); |
| return len; |
| } |
| for (i = 0; i < 256; i++) { |
| head = &pHddTdlsCtx->peer_list[i]; |
| |
| list_for_each(pos, head) { |
| curr_peer= list_entry (pos, hddTdlsPeer_t, node); |
| |
| if (buflen < 32+1) |
| break; |
| len = snprintf(buf, buflen, |
| MAC_ADDRESS_STR"%3d%4s%3s%5d\n", |
| MAC_ADDR_ARRAY(curr_peer->peerMac), |
| curr_peer->staId, |
| (curr_peer->tdls_support == eTDLS_CAP_SUPPORTED) ? "Y":"N", |
| TDLS_IS_CONNECTED(curr_peer) ? "Y":"N", |
| curr_peer->rssi); |
| buf += len; |
| buflen -= len; |
| } |
| } |
| mutex_unlock(&tdls_lock); |
| return init_len-buflen; |
| } |
| |
| void wlan_hdd_tdls_connection_callback(hdd_adapter_t *pAdapter) |
| { |
| hdd_context_t *pHddCtx = WLAN_HDD_GET_CTX( pAdapter ); |
| tdlsCtx_t *pHddTdlsCtx = WLAN_HDD_GET_TDLS_CTX_PTR(pAdapter); |
| |
| if (mutex_lock_interruptible(&tdls_lock)) |
| { |
| VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR, |
| "%s: unable to lock list", __func__); |
| return; |
| } |
| |
| if (NULL == pHddCtx || NULL == pHddTdlsCtx) |
| { |
| mutex_unlock(&tdls_lock); |
| return; |
| } |
| |
| VOS_TRACE( VOS_MODULE_ID_HDD, TDLS_LOG_LEVEL, |
| "%s, update %d discover %d", __func__, |
| pHddTdlsCtx->threshold_config.tx_period_t, |
| pHddTdlsCtx->threshold_config.discovery_period_t); |
| |
| if (eTDLS_SUPPORT_ENABLED == pHddCtx->tdls_mode) |
| { |
| wlan_hdd_tdls_peer_reset_discovery_processed(pHddTdlsCtx); |
| pHddTdlsCtx->discovery_sent_cnt = 0; |
| wlan_hdd_tdls_check_power_save_prohibited(pHddTdlsCtx->pAdapter); |
| |
| #ifdef FEATURE_WLAN_TDLS_INTERNAL |
| wlan_hdd_tdls_timer_restart(pHddTdlsCtx->pAdapter, |
| &pHddTdlsCtx->peerDiscoverTimer, |
| pHddTdlsCtx->threshold_config.discovery_period_t); |
| #endif |
| wlan_hdd_tdls_timer_restart(pHddTdlsCtx->pAdapter, |
| &pHddTdlsCtx->peerUpdateTimer, |
| pHddTdlsCtx->threshold_config.tx_period_t); |
| } |
| mutex_unlock(&tdls_lock); |
| |
| } |
| |
| void wlan_hdd_tdls_disconnection_callback(hdd_adapter_t *pAdapter) |
| { |
| tdlsCtx_t *pHddTdlsCtx = WLAN_HDD_GET_TDLS_CTX_PTR(pAdapter); |
| |
| VOS_TRACE( VOS_MODULE_ID_HDD, TDLS_LOG_LEVEL,"%s", __func__); |
| |
| if (mutex_lock_interruptible(&tdls_lock)) |
| { |
| VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR, |
| "%s: unable to lock list", __func__); |
| return; |
| } |
| if (NULL == pHddTdlsCtx) |
| { |
| mutex_unlock(&tdls_lock); |
| return; |
| } |
| pHddTdlsCtx->discovery_sent_cnt = 0; |
| wlan_hdd_tdls_check_power_save_prohibited(pHddTdlsCtx->pAdapter); |
| |
| wlan_hdd_tdls_timers_stop(pHddTdlsCtx); |
| wlan_hdd_tdls_free_list(pHddTdlsCtx); |
| |
| mutex_unlock(&tdls_lock); |
| } |
| |
| void wlan_hdd_tdls_mgmt_completion_callback(hdd_adapter_t *pAdapter, tANI_U32 statusCode) |
| { |
| pAdapter->mgmtTxCompletionStatus = statusCode; |
| VOS_TRACE( VOS_MODULE_ID_HDD, TDLS_LOG_LEVEL,"%s: Mgmt TX Completion %d", |
| __func__, statusCode); |
| complete(&pAdapter->tdls_mgmt_comp); |
| } |
| |
| void wlan_hdd_tdls_increment_peer_count(hdd_adapter_t *pAdapter) |
| { |
| hdd_context_t *pHddCtx = WLAN_HDD_GET_CTX(pAdapter); |
| |
| if (NULL == pHddCtx) return; |
| |
| pHddCtx->connected_peer_count++; |
| wlan_hdd_tdls_check_power_save_prohibited(pAdapter); |
| |
| VOS_TRACE( VOS_MODULE_ID_HDD, TDLS_LOG_LEVEL, "%s: %d", |
| __func__, pHddCtx->connected_peer_count); |
| } |
| |
| void wlan_hdd_tdls_decrement_peer_count(hdd_adapter_t *pAdapter) |
| { |
| hdd_context_t *pHddCtx = WLAN_HDD_GET_CTX(pAdapter); |
| |
| if (NULL == pHddCtx) return; |
| |
| if (pHddCtx->connected_peer_count) |
| pHddCtx->connected_peer_count--; |
| wlan_hdd_tdls_check_power_save_prohibited(pAdapter); |
| |
| VOS_TRACE( VOS_MODULE_ID_HDD, TDLS_LOG_LEVEL, "%s: %d", |
| __func__, pHddCtx->connected_peer_count); |
| |
| } |
| |
| void wlan_hdd_tdls_check_bmps(hdd_adapter_t *pAdapter) |
| { |
| hdd_context_t *pHddCtx = WLAN_HDD_GET_CTX(pAdapter); |
| tdlsCtx_t *pHddTdlsCtx = WLAN_HDD_GET_TDLS_CTX_PTR(pAdapter); |
| hddTdlsPeer_t *curr_peer; |
| |
| if ((NULL == pHddCtx) || (NULL == pHddTdlsCtx)) return; |
| |
| curr_peer = wlan_hdd_tdls_is_progress(pHddCtx, NULL, 0, TRUE); |
| if (NULL != curr_peer) |
| { |
| VOS_TRACE(VOS_MODULE_ID_HDD, TDLS_LOG_LEVEL, |
| "%s: tdls in progress. Dont check for BMPS " MAC_ADDRESS_STR, |
| __func__, MAC_ADDR_ARRAY (curr_peer->peerMac)); |
| return; |
| } |
| /* |
| * If Powersave Offload is enabled |
| * Fw will take care incase of concurrency |
| */ |
| if(!pHddCtx->cfg_ini->enablePowersaveOffload) |
| { |
| if ((TDLS_CTX_MAGIC != pHddCtx->tdls_scan_ctxt.magic) && |
| (0 == pHddCtx->connected_peer_count) && |
| (0 == pHddTdlsCtx->discovery_sent_cnt)) |
| { |
| if (FALSE == sme_IsPmcBmps(WLAN_HDD_GET_HAL_CTX(pAdapter))) |
| { |
| VOS_TRACE( VOS_MODULE_ID_HDD, TDLS_LOG_LEVEL, |
| "%s: No TDLS peer connected/discovery sent. Enable BMPS", |
| __func__); |
| hdd_enable_bmps_imps(pHddCtx); |
| } |
| } |
| else |
| { |
| if (TRUE == sme_IsPmcBmps(WLAN_HDD_GET_HAL_CTX(pAdapter))) |
| { |
| VOS_TRACE( VOS_MODULE_ID_HDD, TDLS_LOG_LEVEL, |
| "%s: TDLS peer connected. Disable BMPS", __func__); |
| hdd_disable_bmps_imps(pHddCtx, WLAN_HDD_INFRA_STATION); |
| } |
| } |
| } |
| else |
| { |
| if ((TDLS_CTX_MAGIC != pHddCtx->tdls_scan_ctxt.magic) && |
| (0 == pHddCtx->connected_peer_count) && |
| (0 == pHddTdlsCtx->discovery_sent_cnt)) |
| { |
| VOS_TRACE( VOS_MODULE_ID_HDD, TDLS_LOG_LEVEL, |
| "%s: No TDLS peer connected/discovery sent. Enable BMPS", |
| __func__); |
| sme_SetTdlsPowerSaveProhibited(WLAN_HDD_GET_HAL_CTX(pAdapter), |
| pAdapter->sessionId, FALSE); |
| sme_PsOffloadEnablePowerSave(WLAN_HDD_GET_HAL_CTX(pAdapter), |
| pAdapter->sessionId); |
| } |
| else |
| { |
| VOS_TRACE( VOS_MODULE_ID_HDD, TDLS_LOG_LEVEL, |
| "%s: TDLS peer connected. Disable BMPS", __func__); |
| sme_SetTdlsPowerSaveProhibited(WLAN_HDD_GET_HAL_CTX(pAdapter), |
| pAdapter->sessionId, TRUE); |
| sme_PsOffloadDisablePowerSave(WLAN_HDD_GET_HAL_CTX(pAdapter), |
| pAdapter->sessionId); |
| |
| } |
| } |
| return; |
| } |
| |
| u8 wlan_hdd_tdls_is_peer_progress(hdd_adapter_t *pAdapter, u8 *mac) |
| { |
| hddTdlsPeer_t *curr_peer; |
| |
| curr_peer = wlan_hdd_tdls_find_peer(pAdapter, mac); |
| if (curr_peer == NULL) |
| return 0; |
| |
| return (eTDLS_LINK_CONNECTING == curr_peer->link_status); |
| } |
| |
| /* return pointer to hddTdlsPeer_t if TDLS is ongoing. Otherwise return NULL. |
| * mac - if NULL check for all the peer list, otherwise, skip this mac when skip_self is TRUE |
| * skip_self - if TRUE, skip this mac. otherwise, check all the peer list. if |
| mac is NULL, this argument is ignored, and check for all the peer list. |
| */ |
| static hddTdlsPeer_t *wlan_hdd_tdls_find_progress_peer(hdd_adapter_t *pAdapter, u8 *mac, u8 skip_self, tANI_BOOLEAN mutexLock) |
| { |
| int i; |
| struct list_head *head; |
| hddTdlsPeer_t *curr_peer; |
| struct list_head *pos; |
| tdlsCtx_t *pHddTdlsCtx; |
| |
| if (mutexLock) |
| { |
| if (mutex_lock_interruptible(&tdls_lock)) |
| { |
| VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR, |
| "%s: unable to lock list", __func__); |
| return NULL; |
| } |
| } |
| pHddTdlsCtx = WLAN_HDD_GET_TDLS_CTX_PTR(pAdapter); |
| if (NULL == pHddTdlsCtx) |
| { |
| if (mutexLock) |
| mutex_unlock(&tdls_lock); |
| return NULL; |
| } |
| |
| for (i = 0; i < 256; i++) { |
| head = &pHddTdlsCtx->peer_list[i]; |
| list_for_each(pos, head) { |
| curr_peer = list_entry (pos, hddTdlsPeer_t, node); |
| if (skip_self && mac && !memcmp(mac, curr_peer->peerMac, 6)) { |
| continue; |
| } |
| else |
| { |
| if (eTDLS_LINK_CONNECTING == curr_peer->link_status) |
| { |
| VOS_TRACE(VOS_MODULE_ID_HDD, TDLS_LOG_LEVEL, |
| "%s:" MAC_ADDRESS_STR " eTDLS_LINK_CONNECTING", |
| __func__, MAC_ADDR_ARRAY(curr_peer->peerMac)); |
| if (mutexLock) |
| mutex_unlock(&tdls_lock); |
| return curr_peer; |
| } |
| } |
| } |
| } |
| |
| if (mutexLock) |
| mutex_unlock(&tdls_lock); |
| return NULL; |
| } |
| |
| hddTdlsPeer_t *wlan_hdd_tdls_is_progress(hdd_context_t *pHddCtx, u8 *mac, u8 skip_self, tANI_BOOLEAN mutexLock) |
| { |
| hdd_adapter_list_node_t *pAdapterNode = NULL, *pNext = NULL; |
| hdd_adapter_t *pAdapter = NULL; |
| tdlsCtx_t *pHddTdlsCtx = NULL; |
| hddTdlsPeer_t *curr_peer= NULL; |
| VOS_STATUS status = 0; |
| |
| status = hdd_get_front_adapter ( pHddCtx, &pAdapterNode ); |
| while ( NULL != pAdapterNode && VOS_STATUS_SUCCESS == status ) |
| { |
| pAdapter = pAdapterNode->pAdapter; |
| |
| pHddTdlsCtx = WLAN_HDD_GET_TDLS_CTX_PTR(pAdapter); |
| if (NULL != pHddTdlsCtx) |
| { |
| curr_peer = wlan_hdd_tdls_find_progress_peer(pAdapter, mac, skip_self, mutexLock); |
| if (curr_peer) |
| return curr_peer; |
| } |
| status = hdd_get_next_adapter ( pHddCtx, pAdapterNode, &pNext ); |
| pAdapterNode = pNext; |
| } |
| return NULL; |
| } |
| |
| static void wlan_hdd_tdls_implicit_disable(tdlsCtx_t *pHddTdlsCtx) |
| { |
| wlan_hdd_tdls_timers_stop(pHddTdlsCtx); |
| } |
| |
| static void wlan_hdd_tdls_implicit_enable(tdlsCtx_t *pHddTdlsCtx) |
| { |
| wlan_hdd_tdls_peer_reset_discovery_processed(pHddTdlsCtx); |
| pHddTdlsCtx->discovery_sent_cnt = 0; |
| wlan_tdd_tdls_reset_tx_rx(pHddTdlsCtx); |
| wlan_hdd_tdls_check_power_save_prohibited(pHddTdlsCtx->pAdapter); |
| |
| |
| #ifdef FEATURE_WLAN_TDLS_INTERNAL |
| wlan_hdd_tdls_timer_restart(pHddTdlsCtx->pAdapter, |
| &pHddTdlsCtx->peerDiscoverTimer, |
| pHddTdlsCtx->threshold_config.discovery_period_t); |
| #endif |
| wlan_hdd_tdls_timer_restart(pHddTdlsCtx->pAdapter, |
| &pHddTdlsCtx->peerUpdateTimer, |
| pHddTdlsCtx->threshold_config.tx_period_t); |
| } |
| |
| void wlan_hdd_tdls_set_mode(hdd_context_t *pHddCtx, |
| eTDLSSupportMode tdls_mode, |
| v_BOOL_t bUpdateLast) |
| { |
| hdd_adapter_list_node_t *pAdapterNode = NULL, *pNext = NULL; |
| VOS_STATUS status; |
| hdd_adapter_t *pAdapter; |
| tdlsCtx_t *pHddTdlsCtx; |
| |
| VOS_TRACE( VOS_MODULE_ID_HDD, TDLS_LOG_LEVEL,"%s mode %d", __func__, (int)tdls_mode); |
| |
| if (mutex_lock_interruptible(&tdls_lock)) |
| { |
| VOS_TRACE(VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR, |
| "%s: unable to lock list", __func__); |
| return; |
| } |
| |
| if (NULL == pHddCtx) |
| { |
| mutex_unlock(&tdls_lock); |
| return; |
| } |
| |
| if (pHddCtx->tdls_mode == tdls_mode) |
| { |
| hddLog(TDLS_LOG_LEVEL, "%s already in mode %d", __func__, (int)tdls_mode); |
| mutex_unlock(&tdls_lock); |
| return; |
| } |
| |
| status = hdd_get_front_adapter ( pHddCtx, &pAdapterNode ); |
| |
| while ( NULL != pAdapterNode && VOS_STATUS_SUCCESS == status ) |
| { |
| pAdapter = pAdapterNode->pAdapter; |
| pHddTdlsCtx = WLAN_HDD_GET_TDLS_CTX_PTR(pAdapter); |
| if (NULL != pHddTdlsCtx) |
| { |
| if(eTDLS_SUPPORT_ENABLED == tdls_mode) |
| wlan_hdd_tdls_implicit_enable(pHddTdlsCtx); |
| else if((eTDLS_SUPPORT_DISABLED == tdls_mode) || |
| (eTDLS_SUPPORT_EXPLICIT_TRIGGER_ONLY == tdls_mode)) |
| wlan_hdd_tdls_implicit_disable(pHddTdlsCtx); |
| } |
| status = hdd_get_next_adapter ( pHddCtx, pAdapterNode, &pNext ); |
| pAdapterNode = pNext; |
| } |
| if(bUpdateLast) |
| { |
| pHddCtx->tdls_mode_last = tdls_mode; |
| } |
| else |
| { |
| pHddCtx->tdls_mode_last = pHddCtx->tdls_mode; |
| } |
| pHddCtx->tdls_mode = tdls_mode; |
| |
| mutex_unlock(&tdls_lock); |
| } |
| |
| static void wlan_hdd_tdls_pre_setup(struct work_struct *work) |
| { |
| tdlsCtx_t *pHddTdlsCtx = |
| container_of(work, tdlsCtx_t, implicit_setup); |
| hdd_context_t *pHddCtx; |
| hddTdlsPeer_t *curr_peer; |
| hddTdlsPeer_t *temp_peer; |
| int status; |
| |
| if (NULL == pHddTdlsCtx) |
| return; |
| |
| if (unlikely(TDLS_CTX_MAGIC != pHddTdlsCtx->magic)) |
| return; |
| |
| pHddCtx = WLAN_HDD_GET_CTX(pHddTdlsCtx->pAdapter); |
| |
| if (NULL == pHddCtx) |
| return; |
| |
| curr_peer = pHddTdlsCtx->curr_candidate; |
| |
| if (NULL == curr_peer) |
| return; |
| /* |
| * If Powersave Offload is enabled |
| * Fw will take care incase of concurrency |
| */ |
| if(!pHddCtx->cfg_ini->enablePowersaveOffload) |
| { |
| if (TRUE == sme_IsPmcBmps(WLAN_HDD_GET_HAL_CTX(pHddTdlsCtx->pAdapter))) |
| { |
| VOS_TRACE( VOS_MODULE_ID_HDD, TDLS_LOG_LEVEL, |
| "%s: Disable BMPS", __func__); |
| hdd_disable_bmps_imps(pHddCtx, WLAN_HDD_INFRA_STATION); |
| } |
| } |
| |
| temp_peer = wlan_hdd_tdls_is_progress(pHddCtx, NULL, 0, FALSE); |
| if (NULL != temp_peer) |
| { |
| VOS_TRACE( VOS_MODULE_ID_HDD, TDLS_LOG_LEVEL, "%s: " MAC_ADDRESS_STR " ongoing. pre_setup ignored\n", |
| __func__, MAC_ADDR_ARRAY(temp_peer->peerMac)); |
| goto done; |
| } |
| |
| if (eTDLS_CAP_UNKNOWN != curr_peer->tdls_support) |
| curr_peer->link_status = eTDLS_LINK_DISCOVERING; |
| |
| status = wlan_hdd_cfg80211_send_tdls_discover_req(pHddTdlsCtx->pAdapter->wdev.wiphy, |
| pHddTdlsCtx->pAdapter->dev, |
| curr_peer->peerMac); |
| |
| if (0 != status) |
| { |
| VOS_TRACE( VOS_MODULE_ID_HDD, TDLS_LOG_LEVEL, "%s: " MAC_ADDRESS_STR " discovery could not sent\n", |
| __func__, MAC_ADDR_ARRAY(curr_peer->peerMac)); |
| if (eTDLS_CAP_UNKNOWN != curr_peer->tdls_support) |
| curr_peer->link_status = eTDLS_LINK_IDLE; |
| goto done; |
| } |
| |
| pHddTdlsCtx->discovery_sent_cnt++; |
| wlan_hdd_tdls_check_power_save_prohibited(pHddTdlsCtx->pAdapter); |
| VOS_TRACE( VOS_MODULE_ID_HDD, TDLS_LOG_LEVEL, "%s: discovery count %lu timeout %lu msec", |
| __func__, pHddTdlsCtx->discovery_sent_cnt, |
| pHddTdlsCtx->threshold_config.tx_period_t - TDLS_DISCOVERY_TIMEOUT_BEFORE_UPDATE); |
| |
| wlan_hdd_tdls_timer_restart(pHddTdlsCtx->pAdapter, |
| &pHddTdlsCtx->peerDiscoveryTimeoutTimer, |
| pHddTdlsCtx->threshold_config.tx_period_t - TDLS_DISCOVERY_TIMEOUT_BEFORE_UPDATE); |
| |
| done: |
| pHddTdlsCtx->curr_candidate = NULL; |
| pHddTdlsCtx->magic = 0; |
| return; |
| } |
| |
| tANI_U32 wlan_hdd_tdls_discovery_sent_cnt(hdd_context_t *pHddCtx) |
| { |
| hdd_adapter_list_node_t *pAdapterNode = NULL, *pNext = NULL; |
| hdd_adapter_t *pAdapter = NULL; |
| tdlsCtx_t *pHddTdlsCtx = NULL; |
| VOS_STATUS status = 0; |
| tANI_U32 count = 0; |
| |
| status = hdd_get_front_adapter ( pHddCtx, &pAdapterNode ); |
| while ( NULL != pAdapterNode && VOS_STATUS_SUCCESS == status ) |
| { |
| pAdapter = pAdapterNode->pAdapter; |
| |
| pHddTdlsCtx = WLAN_HDD_GET_TDLS_CTX_PTR(pAdapter); |
| if (NULL != pHddTdlsCtx) |
| { |
| count = count + pHddTdlsCtx->discovery_sent_cnt; |
| } |
| status = hdd_get_next_adapter ( pHddCtx, pAdapterNode, &pNext ); |
| pAdapterNode = pNext; |
| } |
| return count; |
| } |
| |
| void wlan_hdd_tdls_check_power_save_prohibited(hdd_adapter_t *pAdapter) |
| { |
| tdlsCtx_t *pHddTdlsCtx = WLAN_HDD_GET_TDLS_CTX_PTR(pAdapter); |
| hdd_context_t *pHddCtx = WLAN_HDD_GET_CTX(pAdapter); |
| |
| if ((NULL == pHddTdlsCtx) || (NULL == pHddCtx)) |
| return; |
| |
| if ((0 == pHddCtx->connected_peer_count) && |
| (0 == wlan_hdd_tdls_discovery_sent_cnt(pHddCtx))) |
| { |
| sme_SetTdlsPowerSaveProhibited(WLAN_HDD_GET_HAL_CTX(pHddTdlsCtx->pAdapter), |
| pAdapter->sessionId, 0); |
| return; |
| } |
| sme_SetTdlsPowerSaveProhibited(WLAN_HDD_GET_HAL_CTX(pHddTdlsCtx->pAdapter), |
| pAdapter->sessionId, 1); |
| return; |
| } |
| |
| void wlan_hdd_tdls_free_scan_request (tdls_scan_context_t *tdls_scan_ctx) |
| { |
| if (NULL == tdls_scan_ctx) |
| return; |
| |
| tdls_scan_ctx->attempt = 0; |
| tdls_scan_ctx->reject = 0; |
| tdls_scan_ctx->magic = 0; |
| tdls_scan_ctx->scan_request = NULL; |
| return; |
| } |
| |
| int wlan_hdd_tdls_copy_scan_context(hdd_context_t *pHddCtx, |
| struct wiphy *wiphy, |
| #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,6,0)) |
| struct net_device *dev, |
| #endif |
| struct cfg80211_scan_request *request) |
| { |
| tdls_scan_context_t *scan_ctx; |
| |
| if (NULL == pHddCtx ) |
| return -1; |
| |
| scan_ctx = &pHddCtx->tdls_scan_ctxt; |
| |
| scan_ctx->wiphy = wiphy; |
| #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,6,0)) |
| scan_ctx->dev = dev; |
| #endif |
| |
| scan_ctx->scan_request = request; |
| return 0; |
| } |
| |
| static void wlan_hdd_tdls_schedule_scan(struct work_struct *work) |
| { |
| tdls_scan_context_t *scan_ctx = |
| container_of(work, tdls_scan_context_t, tdls_scan_work.work); |
| |
| if (NULL == scan_ctx) |
| return; |
| |
| if (unlikely(TDLS_CTX_MAGIC != scan_ctx->magic)) |
| return; |
| |
| scan_ctx->attempt++; |
| |
| wlan_hdd_cfg80211_scan(scan_ctx->wiphy, |
| #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,6,0)) |
| scan_ctx->dev, |
| #endif |
| scan_ctx->scan_request); |
| } |
| |
| static void wlan_hdd_tdls_scan_init_work(hdd_context_t *pHddCtx, |
| struct wiphy *wiphy, |
| #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,6,0)) |
| struct net_device *dev, |
| #endif |
| struct cfg80211_scan_request *request, |
| unsigned long delay) |
| { |
| if (TDLS_CTX_MAGIC != pHddCtx->tdls_scan_ctxt.magic) |
| { |
| #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,6,0)) |
| wlan_hdd_tdls_copy_scan_context(pHddCtx, wiphy, dev, request); |
| #else |
| wlan_hdd_tdls_copy_scan_context(pHddCtx, wiphy, request); |
| #endif |
| pHddCtx->tdls_scan_ctxt.attempt = 0; |
| pHddCtx->tdls_scan_ctxt.magic = TDLS_CTX_MAGIC; |
| } |
| INIT_DELAYED_WORK(&pHddCtx->tdls_scan_ctxt.tdls_scan_work, wlan_hdd_tdls_schedule_scan); |
| |
| schedule_delayed_work(&pHddCtx->tdls_scan_ctxt.tdls_scan_work, delay); |
| } |
| |
| /* return negative = caller should stop and return error code immediately |
| return 0 = caller should stop and return success immediately |
| return 1 = caller can continue to scan |
| */ |
| int wlan_hdd_tdls_scan_callback (hdd_adapter_t *pAdapter, |
| struct wiphy *wiphy, |
| #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,6,0)) |
| struct net_device *dev, |
| #endif |
| struct cfg80211_scan_request *request) |
| { |
| hdd_context_t *pHddCtx = WLAN_HDD_GET_CTX(pAdapter); |
| u16 connectedTdlsPeers; |
| hddTdlsPeer_t *curr_peer; |
| unsigned long delay; |
| |
| if (NULL == pHddCtx) |
| return 0; |
| |
| /* if tdls is not enabled, then continue scan */ |
| if (eTDLS_SUPPORT_NOT_ENABLED == pHddCtx->tdls_mode) |
| return 1; |
| |
| curr_peer = wlan_hdd_tdls_is_progress(pHddCtx, NULL, 0, TRUE); |
| if (NULL != curr_peer) |
| { |
| if (pHddCtx->tdls_scan_ctxt.reject++ >= TDLS_MAX_SCAN_REJECT) |
| { |
| pHddCtx->tdls_scan_ctxt.reject = 0; |
| VOS_TRACE(VOS_MODULE_ID_HDD, TDLS_LOG_LEVEL, |
| "%s: " MAC_ADDRESS_STR ". scan rejected %d. force it to idle", |
| __func__, MAC_ADDR_ARRAY (curr_peer->peerMac), pHddCtx->tdls_scan_ctxt.reject); |
| |
| wlan_hdd_tdls_set_peer_link_status (curr_peer, eTDLS_LINK_IDLE); |
| return 1; |
| } |
| VOS_TRACE(VOS_MODULE_ID_HDD, TDLS_LOG_LEVEL, |
| "%s: tdls in progress. scan rejected %d", |
| __func__, pHddCtx->tdls_scan_ctxt.reject); |
| return -EBUSY; |
| } |
| |
| /* tdls teardown is ongoing */ |
| if (eTDLS_SUPPORT_DISABLED == pHddCtx->tdls_mode) |
| { |
| connectedTdlsPeers = wlan_hdd_tdlsConnectedPeers(pAdapter); |
| if (connectedTdlsPeers && (pHddCtx->tdls_scan_ctxt.attempt < TDLS_MAX_SCAN_SCHEDULE)) |
| { |
| delay = (unsigned long)(TDLS_DELAY_SCAN_PER_CONNECTION*connectedTdlsPeers); |
| VOS_TRACE(VOS_MODULE_ID_HDD, TDLS_LOG_LEVEL, |
| "%s: tdls disabled, but still connected_peers %d attempt %d. schedule scan %lu msec", |
| __func__, connectedTdlsPeers, pHddCtx->tdls_scan_ctxt.attempt, delay); |
| |
| wlan_hdd_tdls_scan_init_work (pHddCtx, wiphy, |
| #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,6,0)) |
| dev, |
| #endif |
| request, |
| msecs_to_jiffies(delay)); |
| /* scan should not continue */ |
| return 0; |
| } |
| /* no connected peer or max retry reached, scan continue */ |
| VOS_TRACE(VOS_MODULE_ID_HDD, TDLS_LOG_LEVEL, |
| "%s: tdls disabled. connected_peers %d attempt %d. scan allowed", |
| __func__, connectedTdlsPeers, pHddCtx->tdls_scan_ctxt.attempt); |
| return 1; |
| } |
| /* while tdls is up, first time scan */ |
| else if (eTDLS_SUPPORT_ENABLED == pHddCtx->tdls_mode || |
| eTDLS_SUPPORT_EXPLICIT_TRIGGER_ONLY == pHddCtx->tdls_mode) |
| { |
| /* disable implicit trigger logic & tdls operatoin */ |
| wlan_hdd_tdls_set_mode(pHddCtx, eTDLS_SUPPORT_DISABLED, FALSE); |
| /* indicate the teardown all connected to peer */ |
| connectedTdlsPeers = wlan_hdd_tdlsConnectedPeers(pAdapter); |
| if (connectedTdlsPeers) |
| { |
| tANI_U8 staIdx; |
| hddTdlsPeer_t *curr_peer; |
| |
| for (staIdx = 0; staIdx < HDD_MAX_NUM_TDLS_STA; staIdx++) |
| { |
| if (pHddCtx->tdlsConnInfo[staIdx].staId) |
| { |
| VOS_TRACE(VOS_MODULE_ID_HDD, TDLS_LOG_LEVEL, |
| ("%s: indicate TDLS teadown (staId %d)"), __func__, pHddCtx->tdlsConnInfo[staIdx].staId) ; |
| |
| #ifdef CONFIG_TDLS_IMPLICIT |
| curr_peer = wlan_hdd_tdls_find_all_peer(pHddCtx, pHddCtx->tdlsConnInfo[staIdx].peerMac.bytes); |
| if(curr_peer) |
| wlan_hdd_tdls_indicate_teardown(curr_peer->pHddTdlsCtx->pAdapter, curr_peer, eSIR_MAC_TDLS_TEARDOWN_UNSPEC_REASON); |
| #endif |
| } |
| } |
| /* schedule scan */ |
| delay = (unsigned long)(TDLS_DELAY_SCAN_PER_CONNECTION*connectedTdlsPeers); |
| |
| VOS_TRACE(VOS_MODULE_ID_HDD, TDLS_LOG_LEVEL, |
| "%s: tdls enabled (mode %d), connected_peers %d. schedule scan %lu msec", |
| __func__, pHddCtx->tdls_mode, wlan_hdd_tdlsConnectedPeers(pAdapter), |
| delay); |
| |
| wlan_hdd_tdls_scan_init_work (pHddCtx, wiphy, |
| #if (LINUX_VERSION_CODE < KERNEL_VERSION(3,6,0)) |
| dev, |
| #endif |
| request, |
| msecs_to_jiffies(delay)); |
| /* scan should not continue */ |
| return 0; |
| } |
| /* no connected peer, scan continue */ |
| VOS_TRACE(VOS_MODULE_ID_HDD, TDLS_LOG_LEVEL, |
| "%s: tdls_mode %d, and no tdls connection. scan allowed", |
| __func__, pHddCtx->tdls_mode); |
| } |
| return 1; |
| } |
| |
| void wlan_hdd_tdls_scan_done_callback(hdd_adapter_t *pAdapter) |
| { |
| hdd_context_t *pHddCtx = WLAN_HDD_GET_CTX(pAdapter); |
| |
| if (NULL == pHddCtx) |
| return; |
| |
| /* free allocated memory at scan time */ |
| wlan_hdd_tdls_free_scan_request (&pHddCtx->tdls_scan_ctxt); |
| |
| /* if tdls was enabled before scan, re-enable tdls mode */ |
| if(eTDLS_SUPPORT_ENABLED == pHddCtx->tdls_mode_last || |
| eTDLS_SUPPORT_EXPLICIT_TRIGGER_ONLY == pHddCtx->tdls_mode_last) |
| { |
| VOS_TRACE(VOS_MODULE_ID_HDD, TDLS_LOG_LEVEL, |
| ("%s: revert tdls mode %d"), __func__, pHddCtx->tdls_mode_last); |
| |
| wlan_hdd_tdls_set_mode(pHddCtx, pHddCtx->tdls_mode_last, FALSE); |
| } |
| wlan_hdd_tdls_check_bmps(pAdapter); |
| } |
| |
| void wlan_hdd_tdls_timer_restart(hdd_adapter_t *pAdapter, |
| vos_timer_t *timer, |
| v_U32_t expirationTime) |
| { |
| hdd_station_ctx_t *pHddStaCtx = WLAN_HDD_GET_STATION_CTX_PTR(pAdapter); |
| |
| if (NULL == pHddStaCtx) |
| return; |
| |
| /* Check whether driver load unload is in progress */ |
| if(vos_is_load_unload_in_progress( VOS_MODULE_ID_VOSS, NULL)) |
| { |
| VOS_TRACE(VOS_MODULE_ID_VOSS, VOS_TRACE_LEVEL_ERROR, |
| "%s: Driver load/unload is in progress.", __func__); |
| return; |
| } |
| |
| if (hdd_connIsConnected(pHddStaCtx)) |
| { |
| vos_timer_stop(timer); |
| vos_timer_start(timer, expirationTime); |
| } |
| } |
| void wlan_hdd_tdls_indicate_teardown(hdd_adapter_t *pAdapter, |
| hddTdlsPeer_t *curr_peer, |
| tANI_U16 reason) |
| { |
| if (NULL == pAdapter || NULL == curr_peer) |
| return; |
| |
| if (eTDLS_LINK_CONNECTED != curr_peer->link_status) |
| return; |
| |
| wlan_hdd_tdls_set_peer_link_status(curr_peer, eTDLS_LINK_TEARING); |
| cfg80211_tdls_oper_request(pAdapter->dev, |
| curr_peer->peerMac, |
| NL80211_TDLS_TEARDOWN, |
| reason, |
| GFP_KERNEL); |
| } |
