/* * This function initializes the private structure parameters. * * The following wait queues are initialized - * - IOCTL wait queue * - Command wait queue * - Statistics wait queue * * ...and the following default parameters are set - * - Current key index : Set to 0 * - Rate index : Set to auto * - Media connected : Set to disconnected * - Adhoc link sensed : Set to false * - Nick name : Set to null * - Number of Tx timeout : Set to 0 * - Device address : Set to current address * - Rx histogram statistc : Set to 0 * * In addition, the CFG80211 work queue is also created. */ void mwifiex_init_priv_params(struct mwifiex_private *priv, struct net_device *dev) { dev->netdev_ops = &mwifiex_netdev_ops; dev->destructor = free_netdev; /* Initialize private structure */ priv->current_key_index = 0; priv->media_connected = false; memset(priv->mgmt_ie, 0, sizeof(struct mwifiex_ie) * MAX_MGMT_IE_INDEX); priv->beacon_idx = MWIFIEX_AUTO_IDX_MASK; priv->proberesp_idx = MWIFIEX_AUTO_IDX_MASK; priv->assocresp_idx = MWIFIEX_AUTO_IDX_MASK; priv->gen_idx = MWIFIEX_AUTO_IDX_MASK; priv->num_tx_timeout = 0; ether_addr_copy(priv->curr_addr, priv->adapter->perm_addr); memcpy(dev->dev_addr, priv->curr_addr, ETH_ALEN); if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA || GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) { priv->hist_data = kmalloc(sizeof(*priv->hist_data), GFP_KERNEL); if (priv->hist_data) mwifiex_hist_data_reset(priv); } }
static ssize_t mwifiex_histogram_write(struct file *file, const char __user *ubuf, size_t count, loff_t *ppos) { struct mwifiex_private *priv = (void *)file->private_data; if (priv && priv->hist_data) mwifiex_hist_data_reset(priv); return 0; }
/* * This function resets the connection state. * * The function is invoked after receiving a disconnect event from firmware, * and performs the following actions - * - Set media status to disconnected * - Clean up Tx and Rx packets * - Resets SNR/NF/RSSI value in driver * - Resets security configurations in driver * - Enables auto data rate * - Saves the previous SSID and BSSID so that they can * be used for re-association, if required * - Erases current SSID and BSSID information * - Sends a disconnect event to upper layers/applications. */ void mwifiex_reset_connect_state(struct mwifiex_private *priv, u16 reason_code, bool from_ap) { struct mwifiex_adapter *adapter = priv->adapter; if (!priv->media_connected) return; mwifiex_dbg(adapter, INFO, "info: handles disconnect event\n"); priv->media_connected = false; priv->scan_block = false; priv->port_open = false; if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA) && ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info)) { mwifiex_disable_all_tdls_links(priv); if (priv->adapter->auto_tdls) mwifiex_clean_auto_tdls(priv); } /* Free Tx and Rx packets, report disconnect to upper layer */ mwifiex_clean_txrx(priv); /* Reset SNR/NF/RSSI values */ priv->data_rssi_last = 0; priv->data_nf_last = 0; priv->data_rssi_avg = 0; priv->data_nf_avg = 0; priv->bcn_rssi_last = 0; priv->bcn_nf_last = 0; priv->bcn_rssi_avg = 0; priv->bcn_nf_avg = 0; priv->rxpd_rate = 0; priv->rxpd_htinfo = 0; priv->sec_info.wpa_enabled = false; priv->sec_info.wpa2_enabled = false; priv->wpa_ie_len = 0; priv->sec_info.wapi_enabled = false; priv->wapi_ie_len = 0; priv->sec_info.wapi_key_on = false; priv->sec_info.encryption_mode = 0; /* Enable auto data rate */ priv->is_data_rate_auto = true; priv->data_rate = 0; priv->assoc_resp_ht_param = 0; priv->ht_param_present = false; if ((GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_STA || GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) && priv->hist_data) mwifiex_hist_data_reset(priv); if (priv->bss_mode == NL80211_IFTYPE_ADHOC) { priv->adhoc_state = ADHOC_IDLE; priv->adhoc_is_link_sensed = false; } /* * Memorize the previous SSID and BSSID so * it could be used for re-assoc */ mwifiex_dbg(adapter, INFO, "info: previous SSID=%s, SSID len=%u\n", priv->prev_ssid.ssid, priv->prev_ssid.ssid_len); mwifiex_dbg(adapter, INFO, "info: current SSID=%s, SSID len=%u\n", priv->curr_bss_params.bss_descriptor.ssid.ssid, priv->curr_bss_params.bss_descriptor.ssid.ssid_len); memcpy(&priv->prev_ssid, &priv->curr_bss_params.bss_descriptor.ssid, sizeof(struct cfg80211_ssid)); memcpy(priv->prev_bssid, priv->curr_bss_params.bss_descriptor.mac_address, ETH_ALEN); /* Need to erase the current SSID and BSSID info */ memset(&priv->curr_bss_params, 0x00, sizeof(priv->curr_bss_params)); adapter->tx_lock_flag = false; adapter->pps_uapsd_mode = false; if (test_bit(MWIFIEX_IS_CMD_TIMEDOUT, &adapter->work_flags) && adapter->curr_cmd) return; priv->media_connected = false; mwifiex_dbg(adapter, MSG, "info: successfully disconnected from %pM: reason code %d\n", priv->cfg_bssid, reason_code); if (priv->bss_mode == NL80211_IFTYPE_STATION || priv->bss_mode == NL80211_IFTYPE_P2P_CLIENT) { cfg80211_disconnected(priv->netdev, reason_code, NULL, 0, !from_ap, GFP_KERNEL); } eth_zero_addr(priv->cfg_bssid); mwifiex_stop_net_dev_queue(priv->netdev, adapter); if (netif_carrier_ok(priv->netdev)) netif_carrier_off(priv->netdev); if (!ISSUPP_FIRMWARE_SUPPLICANT(priv->adapter->fw_cap_info)) return; mwifiex_send_cmd(priv, HostCmd_CMD_GTK_REKEY_OFFLOAD_CFG, HostCmd_ACT_GEN_REMOVE, 0, NULL, false); }
/* * This function handles AP interface specific events generated by firmware. * * Event specific routines are called by this function based * upon the generated event cause. * * * Events supported for AP - * - EVENT_UAP_STA_ASSOC * - EVENT_UAP_STA_DEAUTH * - EVENT_UAP_BSS_ACTIVE * - EVENT_UAP_BSS_START * - EVENT_UAP_BSS_IDLE * - EVENT_UAP_MIC_COUNTERMEASURES: */ int mwifiex_process_uap_event(struct mwifiex_private *priv) { struct mwifiex_adapter *adapter = priv->adapter; int len, i; u32 eventcause = adapter->event_cause; struct station_info sinfo; struct mwifiex_assoc_event *event; struct mwifiex_sta_node *node; u8 *deauth_mac; struct host_cmd_ds_11n_batimeout *ba_timeout; u16 ctrl; switch (eventcause) { case EVENT_UAP_STA_ASSOC: memset(&sinfo, 0, sizeof(sinfo)); event = (struct mwifiex_assoc_event *) (adapter->event_body + MWIFIEX_UAP_EVENT_EXTRA_HEADER); if (le16_to_cpu(event->type) == TLV_TYPE_UAP_MGMT_FRAME) { len = -1; if (ieee80211_is_assoc_req(event->frame_control)) len = 0; else if (ieee80211_is_reassoc_req(event->frame_control)) /* There will be ETH_ALEN bytes of * current_ap_addr before the re-assoc ies. */ len = ETH_ALEN; if (len != -1) { sinfo.assoc_req_ies = &event->data[len]; len = (u8 *)sinfo.assoc_req_ies - (u8 *)&event->frame_control; sinfo.assoc_req_ies_len = le16_to_cpu(event->len) - (u16)len; } } cfg80211_new_sta(priv->netdev, event->sta_addr, &sinfo, GFP_KERNEL); node = mwifiex_add_sta_entry(priv, event->sta_addr); if (!node) { mwifiex_dbg(adapter, ERROR, "could not create station entry!\n"); return -1; } if (!priv->ap_11n_enabled) break; mwifiex_set_sta_ht_cap(priv, sinfo.assoc_req_ies, sinfo.assoc_req_ies_len, node); for (i = 0; i < MAX_NUM_TID; i++) { if (node->is_11n_enabled) node->ampdu_sta[i] = priv->aggr_prio_tbl[i].ampdu_user; else node->ampdu_sta[i] = BA_STREAM_NOT_ALLOWED; } memset(node->rx_seq, 0xff, sizeof(node->rx_seq)); break; case EVENT_UAP_STA_DEAUTH: deauth_mac = adapter->event_body + MWIFIEX_UAP_EVENT_EXTRA_HEADER; cfg80211_del_sta(priv->netdev, deauth_mac, GFP_KERNEL); if (priv->ap_11n_enabled) { mwifiex_11n_del_rx_reorder_tbl_by_ta(priv, deauth_mac); mwifiex_del_tx_ba_stream_tbl_by_ra(priv, deauth_mac); } mwifiex_wmm_del_peer_ra_list(priv, deauth_mac); mwifiex_del_sta_entry(priv, deauth_mac); break; case EVENT_UAP_BSS_IDLE: priv->media_connected = false; priv->port_open = false; if (netif_carrier_ok(priv->netdev)) netif_carrier_off(priv->netdev); mwifiex_stop_net_dev_queue(priv->netdev, adapter); mwifiex_clean_txrx(priv); mwifiex_del_all_sta_list(priv); break; case EVENT_UAP_BSS_ACTIVE: priv->media_connected = true; priv->port_open = true; if (!netif_carrier_ok(priv->netdev)) netif_carrier_on(priv->netdev); mwifiex_wake_up_net_dev_queue(priv->netdev, adapter); break; case EVENT_UAP_BSS_START: mwifiex_dbg(adapter, EVENT, "AP EVENT: event id: %#x\n", eventcause); priv->port_open = false; memcpy(priv->netdev->dev_addr, adapter->event_body + 2, ETH_ALEN); if (priv->hist_data) mwifiex_hist_data_reset(priv); mwifiex_check_uap_capabilties(priv, adapter->event_skb); break; case EVENT_UAP_MIC_COUNTERMEASURES: /* For future development */ mwifiex_dbg(adapter, EVENT, "AP EVENT: event id: %#x\n", eventcause); break; case EVENT_AMSDU_AGGR_CTRL: ctrl = le16_to_cpu(*(__le16 *)adapter->event_body); mwifiex_dbg(adapter, EVENT, "event: AMSDU_AGGR_CTRL %d\n", ctrl); if (priv->media_connected) { adapter->tx_buf_size = min_t(u16, adapter->curr_tx_buf_size, ctrl); mwifiex_dbg(adapter, EVENT, "event: tx_buf_size %d\n", adapter->tx_buf_size); } break; case EVENT_ADDBA: mwifiex_dbg(adapter, EVENT, "event: ADDBA Request\n"); if (priv->media_connected) mwifiex_send_cmd(priv, HostCmd_CMD_11N_ADDBA_RSP, HostCmd_ACT_GEN_SET, 0, adapter->event_body, false); break; case EVENT_DELBA: mwifiex_dbg(adapter, EVENT, "event: DELBA Request\n"); if (priv->media_connected) mwifiex_11n_delete_ba_stream(priv, adapter->event_body); break; case EVENT_BA_STREAM_TIEMOUT: mwifiex_dbg(adapter, EVENT, "event: BA Stream timeout\n"); if (priv->media_connected) { ba_timeout = (void *)adapter->event_body; mwifiex_11n_ba_stream_timeout(priv, ba_timeout); } break; case EVENT_EXT_SCAN_REPORT: mwifiex_dbg(adapter, EVENT, "event: EXT_SCAN Report\n"); if (adapter->ext_scan) return mwifiex_handle_event_ext_scan_report(priv, adapter->event_skb->data); break; case EVENT_TX_STATUS_REPORT: mwifiex_dbg(adapter, EVENT, "event: TX_STATUS Report\n"); mwifiex_parse_tx_status_event(priv, adapter->event_body); break; case EVENT_PS_SLEEP: mwifiex_dbg(adapter, EVENT, "info: EVENT: SLEEP\n"); adapter->ps_state = PS_STATE_PRE_SLEEP; mwifiex_check_ps_cond(adapter); break; case EVENT_PS_AWAKE: mwifiex_dbg(adapter, EVENT, "info: EVENT: AWAKE\n"); if (!adapter->pps_uapsd_mode && priv->media_connected && adapter->sleep_period.period) { adapter->pps_uapsd_mode = true; mwifiex_dbg(adapter, EVENT, "event: PPS/UAPSD mode activated\n"); } adapter->tx_lock_flag = false; if (adapter->pps_uapsd_mode && adapter->gen_null_pkt) { if (mwifiex_check_last_packet_indication(priv)) { if (adapter->data_sent) { adapter->ps_state = PS_STATE_AWAKE; adapter->pm_wakeup_card_req = false; adapter->pm_wakeup_fw_try = false; break; } if (!mwifiex_send_null_packet (priv, MWIFIEX_TxPD_POWER_MGMT_NULL_PACKET | MWIFIEX_TxPD_POWER_MGMT_LAST_PACKET)) adapter->ps_state = PS_STATE_SLEEP; return 0; } } adapter->ps_state = PS_STATE_AWAKE; adapter->pm_wakeup_card_req = false; adapter->pm_wakeup_fw_try = false; break; case EVENT_CHANNEL_REPORT_RDY: mwifiex_dbg(adapter, EVENT, "event: Channel Report\n"); mwifiex_11h_handle_chanrpt_ready(priv, adapter->event_skb); break; case EVENT_RADAR_DETECTED: mwifiex_dbg(adapter, EVENT, "event: Radar detected\n"); mwifiex_11h_handle_radar_detected(priv, adapter->event_skb); break; case EVENT_BT_COEX_WLAN_PARA_CHANGE: dev_err(adapter->dev, "EVENT: BT coex wlan param update\n"); mwifiex_bt_coex_wlan_param_update_event(priv, adapter->event_skb); break; case EVENT_TX_DATA_PAUSE: mwifiex_dbg(adapter, EVENT, "event: TX DATA PAUSE\n"); mwifiex_process_tx_pause_event(priv, adapter->event_skb); break; case EVENT_MULTI_CHAN_INFO: mwifiex_dbg(adapter, EVENT, "event: multi-chan info\n"); mwifiex_process_multi_chan_event(priv, adapter->event_skb); break; default: mwifiex_dbg(adapter, EVENT, "event: unknown event id: %#x\n", eventcause); break; } return 0; }