/* * Marvell Wireless LAN device driver: association and ad-hoc start/join * * Copyright (C) 2011, Marvell International Ltd. * * This software file (the "File") is distributed by Marvell International * Ltd. under the terms of the GNU General Public License Version 2, June 1991 * (the "License"). You may use, redistribute and/or modify this File in * accordance with the terms and conditions of the License, a copy of which * is available by writing to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt. * * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE * ARE EXPRESSLY DISCLAIMED. The License provides additional details about * this warranty disclaimer. */ #include "decl.h" #include "ioctl.h" #include "util.h" #include "fw.h" #include "main.h" #include "wmm.h" #include "11n.h" #define CAPINFO_MASK (~(BIT(15) | BIT(14) | BIT(12) | BIT(11) | BIT(9))) /* * Append a generic IE as a pass through TLV to a TLV buffer. * * This function is called from the network join command preparation routine. * * If the IE buffer has been setup by the application, this routine appends * the buffer as a pass through TLV type to the request. */ static int mwifiex_cmd_append_generic_ie(struct mwifiex_private *priv, u8 **buffer) { int ret_len = 0; struct mwifiex_ie_types_header ie_header; /* Null Checks */ if (!buffer) return 0; if (!(*buffer)) return 0; /* * If there is a generic ie buffer setup, append it to the return * parameter buffer pointer. */ if (priv->gen_ie_buf_len) { dev_dbg(priv->adapter->dev, "info: %s: append generic %d to %p\n", __func__, priv->gen_ie_buf_len, *buffer); /* Wrap the generic IE buffer with a pass through TLV type */ ie_header.type = cpu_to_le16(TLV_TYPE_PASSTHROUGH); ie_header.len = cpu_to_le16(priv->gen_ie_buf_len); memcpy(*buffer, &ie_header, sizeof(ie_header)); /* Increment the return size and the return buffer pointer param */ *buffer += sizeof(ie_header); ret_len += sizeof(ie_header); /* Copy the generic IE buffer to the output buffer, advance pointer */ memcpy(*buffer, priv->gen_ie_buf, priv->gen_ie_buf_len); /* Increment the return size and the return buffer pointer param */ *buffer += priv->gen_ie_buf_len; ret_len += priv->gen_ie_buf_len; /* Reset the generic IE buffer */ priv->gen_ie_buf_len = 0; } /* return the length appended to the buffer */ return ret_len; } /* * Append TSF tracking info from the scan table for the target AP. * * This function is called from the network join command preparation routine. * * The TSF table TSF sent to the firmware contains two TSF values: * - The TSF of the target AP from its previous beacon/probe response * - The TSF timestamp of our local MAC at the time we observed the * beacon/probe response. * * The firmware uses the timestamp values to set an initial TSF value * in the MAC for the new association after a reassociation attempt. */ static int mwifiex_cmd_append_tsf_tlv(struct mwifiex_private *priv, u8 **buffer, struct mwifiex_bssdescriptor *bss_desc) { struct mwifiex_ie_types_tsf_timestamp tsf_tlv; __le64 tsf_val; /* Null Checks */ if (buffer == NULL) return 0; if (*buffer == NULL) return 0; memset(&tsf_tlv, 0x00, sizeof(struct mwifiex_ie_types_tsf_timestamp)); tsf_tlv.header.type = cpu_to_le16(TLV_TYPE_TSFTIMESTAMP); tsf_tlv.header.len = cpu_to_le16(2 * sizeof(tsf_val)); memcpy(*buffer, &tsf_tlv, sizeof(tsf_tlv.header)); *buffer += sizeof(tsf_tlv.header); /* TSF at the time when beacon/probe_response was received */ tsf_val = cpu_to_le64(bss_desc->network_tsf); memcpy(*buffer, &tsf_val, sizeof(tsf_val)); *buffer += sizeof(tsf_val); memcpy(&tsf_val, bss_desc->time_stamp, sizeof(tsf_val)); dev_dbg(priv->adapter->dev, "info: %s: TSF offset calc: %016llx - " "%016llx\n", __func__, tsf_val, bss_desc->network_tsf); memcpy(*buffer, &tsf_val, sizeof(tsf_val)); *buffer += sizeof(tsf_val); return sizeof(tsf_tlv.header) + (2 * sizeof(tsf_val)); } /* * This function finds out the common rates between rate1 and rate2. * * It will fill common rates in rate1 as output if found. * * NOTE: Setting the MSB of the basic rates needs to be taken * care of, either before or after calling this function. */ static int mwifiex_get_common_rates(struct mwifiex_private *priv, u8 *rate1, u32 rate1_size, u8 *rate2, u32 rate2_size) { int ret; u8 *ptr = rate1, *tmp; u32 i, j; tmp = kmemdup(rate1, rate1_size, GFP_KERNEL); if (!tmp) { dev_err(priv->adapter->dev, "failed to alloc tmp buf\n"); return -ENOMEM; } memset(rate1, 0, rate1_size); for (i = 0; rate2[i] && i < rate2_size; i++) { for (j = 0; tmp[j] && j < rate1_size; j++) { /* Check common rate, excluding the bit for basic rate */ if ((rate2[i] & 0x7F) == (tmp[j] & 0x7F)) { *rate1++ = tmp[j]; break; } } } dev_dbg(priv->adapter->dev, "info: Tx data rate set to %#x\n", priv->data_rate); if (!priv->is_data_rate_auto) { while (*ptr) { if ((*ptr & 0x7f) == priv->data_rate) { ret = 0; goto done; } ptr++; } dev_err(priv->adapter->dev, "previously set fixed data rate %#x" " is not compatible with the network\n", priv->data_rate); ret = -1; goto done; } ret = 0; done: kfree(tmp); return ret; } /* * This function creates the intersection of the rates supported by a * target BSS and our adapter settings for use in an assoc/join command. */ static int mwifiex_setup_rates_from_bssdesc(struct mwifiex_private *priv, struct mwifiex_bssdescriptor *bss_desc, u8 *out_rates, u32 *out_rates_size) { u8 card_rates[MWIFIEX_SUPPORTED_RATES]; u32 card_rates_size; /* Copy AP supported rates */ memcpy(out_rates, bss_desc->supported_rates, MWIFIEX_SUPPORTED_RATES); /* Get the STA supported rates */ card_rates_size = mwifiex_get_active_data_rates(priv, card_rates); /* Get the common rates between AP and STA supported rates */ if (mwifiex_get_common_rates(priv, out_rates, MWIFIEX_SUPPORTED_RATES, card_rates, card_rates_size)) { *out_rates_size = 0; dev_err(priv->adapter->dev, "%s: cannot get common rates\n", __func__); return -1; } *out_rates_size = min_t(size_t, strlen(out_rates), MWIFIEX_SUPPORTED_RATES); return 0; } /* * This function appends a WAPI IE. * * This function is called from the network join command preparation routine. * * If the IE buffer has been setup by the application, this routine appends * the buffer as a WAPI TLV type to the request. */ static int mwifiex_cmd_append_wapi_ie(struct mwifiex_private *priv, u8 **buffer) { int retLen = 0; struct mwifiex_ie_types_header ie_header; /* Null Checks */ if (buffer == NULL) return 0; if (*buffer == NULL) return 0; /* * If there is a wapi ie buffer setup, append it to the return * parameter buffer pointer. */ if (priv->wapi_ie_len) { dev_dbg(priv->adapter->dev, "cmd: append wapi ie %d to %p\n", priv->wapi_ie_len, *buffer); /* Wrap the generic IE buffer with a pass through TLV type */ ie_header.type = cpu_to_le16(TLV_TYPE_WAPI_IE); ie_header.len = cpu_to_le16(priv->wapi_ie_len); memcpy(*buffer, &ie_header, sizeof(ie_header)); /* Increment the return size and the return buffer pointer param */ *buffer += sizeof(ie_header); retLen += sizeof(ie_header); /* Copy the wapi IE buffer to the output buffer, advance pointer */ memcpy(*buffer, priv->wapi_ie, priv->wapi_ie_len); /* Increment the return size and the return buffer pointer param */ *buffer += priv->wapi_ie_len; retLen += priv->wapi_ie_len; } /* return the length appended to the buffer */ return retLen; } /* * This function appends rsn ie tlv for wpa/wpa2 security modes. * It is called from the network join command preparation routine. */ static int mwifiex_append_rsn_ie_wpa_wpa2(struct mwifiex_private *priv, u8 **buffer) { struct mwifiex_ie_types_rsn_param_set *rsn_ie_tlv; int rsn_ie_len; if (!buffer || !(*buffer)) return 0; rsn_ie_tlv = (struct mwifiex_ie_types_rsn_param_set *) (*buffer); rsn_ie_tlv->header.type = cpu_to_le16((u16) priv->wpa_ie[0]); rsn_ie_tlv->header.type = cpu_to_le16( le16_to_cpu(rsn_ie_tlv->header.type) & 0x00FF); rsn_ie_tlv->header.len = cpu_to_le16((u16) priv->wpa_ie[1]); rsn_ie_tlv->header.len = cpu_to_le16(le16_to_cpu(rsn_ie_tlv->header.len) & 0x00FF); if (le16_to_cpu(rsn_ie_tlv->header.len) <= (sizeof(priv->wpa_ie) - 2)) memcpy(rsn_ie_tlv->rsn_ie, &priv->wpa_ie[2], le16_to_cpu(rsn_ie_tlv->header.len)); else return -1; rsn_ie_len = sizeof(rsn_ie_tlv->header) + le16_to_cpu(rsn_ie_tlv->header.len); *buffer += rsn_ie_len; return rsn_ie_len; } /* * This function prepares command for association. * * This sets the following parameters - * - Peer MAC address * - Listen interval * - Beacon interval * - Capability information * * ...and the following TLVs, as required - * - SSID TLV * - PHY TLV * - SS TLV * - Rates TLV * - Authentication TLV * - Channel TLV * - WPA/WPA2 IE * - 11n TLV * - Vendor specific TLV * - WMM TLV * - WAPI IE * - Generic IE * - TSF TLV * * Preparation also includes - * - Setting command ID and proper size * - Ensuring correct endian-ness */ int mwifiex_cmd_802_11_associate(struct mwifiex_private *priv, struct host_cmd_ds_command *cmd, struct mwifiex_bssdescriptor *bss_desc) { struct host_cmd_ds_802_11_associate *assoc = &cmd->params.associate; struct mwifiex_ie_types_ssid_param_set *ssid_tlv; struct mwifiex_ie_types_phy_param_set *phy_tlv; struct mwifiex_ie_types_ss_param_set *ss_tlv; struct mwifiex_ie_types_rates_param_set *rates_tlv; struct mwifiex_ie_types_auth_type *auth_tlv; struct mwifiex_ie_types_chan_list_param_set *chan_tlv; u8 rates[MWIFIEX_SUPPORTED_RATES]; u32 rates_size; u16 tmp_cap; u8 *pos; int rsn_ie_len = 0; pos = (u8 *) assoc; mwifiex_cfg_tx_buf(priv, bss_desc); cmd->command = cpu_to_le16(HostCmd_CMD_802_11_ASSOCIATE); /* Save so we know which BSS Desc to use in the response handler */ priv->attempted_bss_desc = bss_desc; memcpy(assoc->peer_sta_addr, bss_desc->mac_address, sizeof(assoc->peer_sta_addr)); pos += sizeof(assoc->peer_sta_addr); /* Set the listen interval */ assoc->listen_interval = cpu_to_le16(priv->listen_interval); /* Set the beacon period */ assoc->beacon_period = cpu_to_le16(bss_desc->beacon_period); pos += sizeof(assoc->cap_info_bitmap); pos += sizeof(assoc->listen_interval); pos += sizeof(assoc->beacon_period); pos += sizeof(assoc->dtim_period); ssid_tlv = (struct mwifiex_ie_types_ssid_param_set *) pos; ssid_tlv->header.type = cpu_to_le16(WLAN_EID_SSID); ssid_tlv->header.len = cpu_to_le16((u16) bss_desc->ssid.ssid_len); memcpy(ssid_tlv->ssid, bss_desc->ssid.ssid, le16_to_cpu(ssid_tlv->header.len)); pos += sizeof(ssid_tlv->header) + le16_to_cpu(ssid_tlv->header.len); phy_tlv = (struct mwifiex_ie_types_phy_param_set *) pos; phy_tlv->header.type = cpu_to_le16(WLAN_EID_DS_PARAMS); phy_tlv->header.len = cpu_to_le16(sizeof(phy_tlv->fh_ds.ds_param_set)); memcpy(&phy_tlv->fh_ds.ds_param_set, &bss_desc->phy_param_set.ds_param_set.current_chan, sizeof(phy_tlv->fh_ds.ds_param_set)); pos += sizeof(phy_tlv->header) + le16_to_cpu(phy_tlv->header.len); ss_tlv = (struct mwifiex_ie_types_ss_param_set *) pos; ss_tlv->header.type = cpu_to_le16(WLAN_EID_CF_PARAMS); ss_tlv->header.len = cpu_to_le16(sizeof(ss_tlv->cf_ibss.cf_param_set)); pos += sizeof(ss_tlv->header) + le16_to_cpu(ss_tlv->header.len); /* Get the common rates supported between the driver and the BSS Desc */ if (mwifiex_setup_rates_from_bssdesc (priv, bss_desc, rates, &rates_size)) return -1; /* Save the data rates into Current BSS state structure */ priv->curr_bss_params.num_of_rates = rates_size; memcpy(&priv->curr_bss_params.data_rates, rates, rates_size); /* Setup the Rates TLV in the association command */ rates_tlv = (struct mwifiex_ie_types_rates_param_set *) pos; rates_tlv->header.type = cpu_to_le16(WLAN_EID_SUPP_RATES); rates_tlv->header.len = cpu_to_le16((u16) rates_size); memcpy(rates_tlv->rates, rates, rates_size); pos += sizeof(rates_tlv->header) + rates_size; dev_dbg(priv->adapter->dev, "info: ASSOC_CMD: rates size = %d\n", rates_size); /* Add the Authentication type to be used for Auth frames */ auth_tlv = (struct mwifiex_ie_types_auth_type *) pos; auth_tlv->header.type = cpu_to_le16(TLV_TYPE_AUTH_TYPE); auth_tlv->header.len = cpu_to_le16(sizeof(auth_tlv->auth_type)); if (priv->sec_info.wep_status == MWIFIEX_802_11_WEP_ENABLED) auth_tlv->auth_type = cpu_to_le16( (u16) priv->sec_info.authentication_mode); else auth_tlv->auth_type = cpu_to_le16(NL80211_AUTHTYPE_OPEN_SYSTEM); pos += sizeof(auth_tlv->header) + le16_to_cpu(auth_tlv->header.len); if (IS_SUPPORT_MULTI_BANDS(priv->adapter) && !(ISSUPP_11NENABLED(priv->adapter->fw_cap_info) && (!bss_desc->disable_11n) && (priv->adapter->config_bands & BAND_GN || priv->adapter->config_bands & BAND_AN) && (bss_desc->bcn_ht_cap) ) ) { /* Append a channel TLV for the channel the attempted AP was found on */ chan_tlv = (struct mwifiex_ie_types_chan_list_param_set *) pos; chan_tlv->header.type = cpu_to_le16(TLV_TYPE_CHANLIST); chan_tlv->header.len = cpu_to_le16(sizeof(struct mwifiex_chan_scan_param_set)); memset(chan_tlv->chan_scan_param, 0x00, sizeof(struct mwifiex_chan_scan_param_set)); chan_tlv->chan_scan_param[0].chan_number = (bss_desc->phy_param_set.ds_param_set.current_chan); dev_dbg(priv->adapter->dev, "info: Assoc: TLV Chan = %d\n", chan_tlv->chan_scan_param[0].chan_number); chan_tlv->chan_scan_param[0].radio_type = mwifiex_band_to_radio_type((u8) bss_desc->bss_band); dev_dbg(priv->adapter->dev, "info: Assoc: TLV Band = %d\n", chan_tlv->chan_scan_param[0].radio_type); pos += sizeof(chan_tlv->header) + sizeof(struct mwifiex_chan_scan_param_set); } if (!priv->wps.session_enable) { if (priv->sec_info.wpa_enabled || priv->sec_info.wpa2_enabled) rsn_ie_len = mwifiex_append_rsn_ie_wpa_wpa2(priv, &pos); if (rsn_ie_len == -1) return -1; } if (ISSUPP_11NENABLED(priv->adapter->fw_cap_info) && (!bss_desc->disable_11n) && (priv->adapter->config_bands & BAND_GN || priv->adapter->config_bands & BAND_AN)) mwifiex_cmd_append_11n_tlv(priv, bss_desc, &pos); /* Append vendor specific IE TLV */ mwifiex_cmd_append_vsie_tlv(priv, MWIFIEX_VSIE_MASK_ASSOC, &pos); mwifiex_wmm_process_association_req(priv, &pos, &bss_desc->wmm_ie, bss_desc->bcn_ht_cap); if (priv->sec_info.wapi_enabled && priv->wapi_ie_len) mwifiex_cmd_append_wapi_ie(priv, &pos); mwifiex_cmd_append_generic_ie(priv, &pos); mwifiex_cmd_append_tsf_tlv(priv, &pos, bss_desc); cmd->size = cpu_to_le16((u16) (pos - (u8 *) assoc) + S_DS_GEN); /* Set the Capability info at last */ tmp_cap = bss_desc->cap_info_bitmap; if (priv->adapter->config_bands == BAND_B) tmp_cap &= ~WLAN_CAPABILITY_SHORT_SLOT_TIME; tmp_cap &= CAPINFO_MASK; dev_dbg(priv->adapter->dev, "info: ASSOC_CMD: tmp_cap=%4X CAPINFO_MASK=%4lX\n", tmp_cap, CAPINFO_MASK); assoc->cap_info_bitmap = cpu_to_le16(tmp_cap); return 0; } /* * Association firmware command response handler * * The response buffer for the association command has the following * memory layout. * * For cases where an association response was not received (indicated * by the CapInfo and AId field): * * .------------------------------------------------------------. * | Header(4 * sizeof(t_u16)): Standard command response hdr | * .------------------------------------------------------------. * | cap_info/Error Return(t_u16): | * | 0xFFFF(-1): Internal error | * | 0xFFFE(-2): Authentication unhandled message | * | 0xFFFD(-3): Authentication refused | * | 0xFFFC(-4): Timeout waiting for AP response | * .------------------------------------------------------------. * | status_code(t_u16): | * | If cap_info is -1: | * | An internal firmware failure prevented the | * | command from being processed. The status_code | * | will be set to 1. | * | | * | If cap_info is -2: | * | An authentication frame was received but was | * | not handled by the firmware. IEEE Status | * | code for the failure is returned. | * | | * | If cap_info is -3: | * | An authentication frame was received and the | * | status_code is the IEEE Status reported in the | * | response. | * | | * | If cap_info is -4: | * | (1) Association response timeout | * | (2) Authentication response timeout | * .------------------------------------------------------------. * | a_id(t_u16): 0xFFFF | * .------------------------------------------------------------. * * * For cases where an association response was received, the IEEE * standard association response frame is returned: * * .------------------------------------------------------------. * | Header(4 * sizeof(t_u16)): Standard command response hdr | * .------------------------------------------------------------. * | cap_info(t_u16): IEEE Capability | * .------------------------------------------------------------. * | status_code(t_u16): IEEE Status Code | * .------------------------------------------------------------. * | a_id(t_u16): IEEE Association ID | * .------------------------------------------------------------. * | IEEE IEs(variable): Any received IEs comprising the | * | remaining portion of a received | * | association response frame. | * .------------------------------------------------------------. * * For simplistic handling, the status_code field can be used to determine * an association success (0) or failure (non-zero). */ int mwifiex_ret_802_11_associate(struct mwifiex_private *priv, struct host_cmd_ds_command *resp) { struct mwifiex_adapter *adapter = priv->adapter; int ret = 0; struct ieee_types_assoc_rsp *assoc_rsp; struct mwifiex_bssdescriptor *bss_desc; u8 enable_data = true; assoc_rsp = (struct ieee_types_assoc_rsp *) &resp->params; priv->assoc_rsp_size = min(le16_to_cpu(resp->size) - S_DS_GEN, sizeof(priv->assoc_rsp_buf)); memcpy(priv->assoc_rsp_buf, &resp->params, priv->assoc_rsp_size); if (le16_to_cpu(assoc_rsp->status_code)) { priv->adapter->dbg.num_cmd_assoc_failure++; dev_err(priv->adapter->dev, "ASSOC_RESP: association failed, " "status code = %d, error = 0x%x, a_id = 0x%x\n", le16_to_cpu(assoc_rsp->status_code), le16_to_cpu(assoc_rsp->cap_info_bitmap), le16_to_cpu(assoc_rsp->a_id)); ret = -1; goto done; } /* Send a Media Connected event, according to the Spec */ priv->media_connected = true; priv->adapter->ps_state = PS_STATE_AWAKE; priv->adapter->pps_uapsd_mode = false; priv->adapter->tx_lock_flag = false; /* Set the attempted BSSID Index to current */ bss_desc = priv->attempted_bss_desc; dev_dbg(priv->adapter->dev, "info: ASSOC_RESP: %s\n", bss_desc->ssid.ssid); /* Make a copy of current BSSID descriptor */ memcpy(&priv->curr_bss_params.bss_descriptor, bss_desc, sizeof(struct mwifiex_bssdescriptor)); /* Update curr_bss_params */ priv->curr_bss_params.bss_descriptor.channel = bss_desc->phy_param_set.ds_param_set.current_chan; priv->curr_bss_params.band = (u8) bss_desc->bss_band; if (bss_desc->wmm_ie.vend_hdr.element_id == WLAN_EID_VENDOR_SPECIFIC) priv->curr_bss_params.wmm_enabled = true; else priv->curr_bss_params.wmm_enabled = false; if ((priv->wmm_required || bss_desc->bcn_ht_cap) && priv->curr_bss_params.wmm_enabled) priv->wmm_enabled = true; else priv->wmm_enabled = false; priv->curr_bss_params.wmm_uapsd_enabled = false; if (priv->wmm_enabled) priv->curr_bss_params.wmm_uapsd_enabled = ((bss_desc->wmm_ie.qos_info_bitmap & IEEE80211_WMM_IE_AP_QOSINFO_UAPSD) ? 1 : 0); dev_dbg(priv->adapter->dev, "info: ASSOC_RESP: curr_pkt_filter is %#x\n", priv->curr_pkt_filter); if (priv->sec_info.wpa_enabled || priv->sec_info.wpa2_enabled) priv->wpa_is_gtk_set = false; if (priv->wmm_enabled) { /* Don't re-enable carrier until we get the WMM_GET_STATUS event */ enable_data = false; } else { /* Since WMM is not enabled, setup the queues with the defaults */ mwifiex_wmm_setup_queue_priorities(priv, NULL); mwifiex_wmm_setup_ac_downgrade(priv); } if (enable_data) dev_dbg(priv->adapter->dev, "info: post association, re-enabling data flow\n"); /* 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; mwifiex_save_curr_bcn(priv); priv->adapter->dbg.num_cmd_assoc_success++; dev_dbg(priv->adapter->dev, "info: ASSOC_RESP: associated\n"); /* Add the ra_list here for infra mode as there will be only 1 ra always */ mwifiex_ralist_add(priv, priv->curr_bss_params.bss_descriptor.mac_address); if (!netif_carrier_ok(priv->netdev)) netif_carrier_on(priv->netdev); if (netif_queue_stopped(priv->netdev)) netif_wake_queue(priv->netdev); if (priv->sec_info.wpa_enabled || priv->sec_info.wpa2_enabled) priv->scan_block = true; done: /* Need to indicate IOCTL complete */ if (adapter->curr_cmd->wait_q_enabled) { if (ret) adapter->cmd_wait_q.status = -1; else adapter->cmd_wait_q.status = 0; } return ret; } /* * This function prepares command for ad-hoc start. * * Driver will fill up SSID, BSS mode, IBSS parameters, physical * parameters, probe delay, and capability information. Firmware * will fill up beacon period, basic rates and operational rates. * * In addition, the following TLVs are added - * - Channel TLV * - Vendor specific IE * - WPA/WPA2 IE * - HT Capabilities IE * - HT Information IE * * Preparation also includes - * - Setting command ID and proper size * - Ensuring correct endian-ness */ int mwifiex_cmd_802_11_ad_hoc_start(struct mwifiex_private *priv, struct host_cmd_ds_command *cmd, struct mwifiex_802_11_ssid *req_ssid) { int rsn_ie_len = 0; struct mwifiex_adapter *adapter = priv->adapter; struct host_cmd_ds_802_11_ad_hoc_start *adhoc_start = &cmd->params.adhoc_start; struct mwifiex_bssdescriptor *bss_desc; u32 cmd_append_size = 0; u32 i; u16 tmp_cap; uint16_t ht_cap_info; struct mwifiex_ie_types_chan_list_param_set *chan_tlv; struct mwifiex_ie_types_htcap *ht_cap; struct mwifiex_ie_types_htinfo *ht_info; u8 *pos = (u8 *) adhoc_start + sizeof(struct host_cmd_ds_802_11_ad_hoc_start); if (!adapter) return -1; cmd->command = cpu_to_le16(HostCmd_CMD_802_11_AD_HOC_START); bss_desc = &priv->curr_bss_params.bss_descriptor; priv->attempted_bss_desc = bss_desc; /* * Fill in the parameters for 2 data structures: * 1. struct host_cmd_ds_802_11_ad_hoc_start command * 2. bss_desc * Driver will fill up SSID, bss_mode,IBSS param, Physical Param, * probe delay, and Cap info. * Firmware will fill up beacon period, Basic rates * and operational rates. */ memset(adhoc_start->ssid, 0, IEEE80211_MAX_SSID_LEN); memcpy(adhoc_start->ssid, req_ssid->ssid, req_ssid->ssid_len); dev_dbg(adapter->dev, "info: ADHOC_S_CMD: SSID = %s\n", adhoc_start->ssid); memset(bss_desc->ssid.ssid, 0, IEEE80211_MAX_SSID_LEN); memcpy(bss_desc->ssid.ssid, req_ssid->ssid, req_ssid->ssid_len); bss_desc->ssid.ssid_len = req_ssid->ssid_len; /* Set the BSS mode */ adhoc_start->bss_mode = HostCmd_BSS_MODE_IBSS; bss_desc->bss_mode = NL80211_IFTYPE_ADHOC; adhoc_start->beacon_period = cpu_to_le16(priv->beacon_period); bss_desc->beacon_period = priv->beacon_period; /* Set Physical param set */ /* Parameter IE Id */ #define DS_PARA_IE_ID 3 /* Parameter IE length */ #define DS_PARA_IE_LEN 1 adhoc_start->phy_param_set.ds_param_set.element_id = DS_PARA_IE_ID; adhoc_start->phy_param_set.ds_param_set.len = DS_PARA_IE_LEN; if (!mwifiex_get_cfp_by_band_and_channel_from_cfg80211 (priv, adapter->adhoc_start_band, (u16) priv->adhoc_channel)) { struct mwifiex_chan_freq_power *cfp; cfp = mwifiex_get_cfp_by_band_and_channel_from_cfg80211(priv, adapter->adhoc_start_band, FIRST_VALID_CHANNEL); if (cfp) priv->adhoc_channel = (u8) cfp->channel; } if (!priv->adhoc_channel) { dev_err(adapter->dev, "ADHOC_S_CMD: adhoc_channel cannot be 0\n"); return -1; } dev_dbg(adapter->dev, "info: ADHOC_S_CMD: creating ADHOC on channel %d\n", priv->adhoc_channel); priv->curr_bss_params.bss_descriptor.channel = priv->adhoc_channel; priv->curr_bss_params.band = adapter->adhoc_start_band; bss_desc->channel = priv->adhoc_channel; adhoc_start->phy_param_set.ds_param_set.current_chan = priv->adhoc_channel; memcpy(&bss_desc->phy_param_set, &adhoc_start->phy_param_set, sizeof(union ieee_types_phy_param_set)); /* Set IBSS param set */ /* IBSS parameter IE Id */ #define IBSS_PARA_IE_ID 6 /* IBSS parameter IE length */ #define IBSS_PARA_IE_LEN 2 adhoc_start->ss_param_set.ibss_param_set.element_id = IBSS_PARA_IE_ID; adhoc_start->ss_param_set.ibss_param_set.len = IBSS_PARA_IE_LEN; adhoc_start->ss_param_set.ibss_param_set.atim_window = cpu_to_le16(priv->atim_window); memcpy(&bss_desc->ss_param_set, &adhoc_start->ss_param_set, sizeof(union ieee_types_ss_param_set)); /* Set Capability info */ bss_desc->cap_info_bitmap |= WLAN_CAPABILITY_IBSS; tmp_cap = le16_to_cpu(adhoc_start->cap_info_bitmap); tmp_cap &= ~WLAN_CAPABILITY_ESS; tmp_cap |= WLAN_CAPABILITY_IBSS; /* Set up privacy in bss_desc */ if (priv->sec_info.encryption_mode) { /* Ad-Hoc capability privacy on */ dev_dbg(adapter->dev, "info: ADHOC_S_CMD: wep_status set privacy to WEP\n"); bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_8021X_WEP; tmp_cap |= WLAN_CAPABILITY_PRIVACY; } else { dev_dbg(adapter->dev, "info: ADHOC_S_CMD: wep_status NOT set," " setting privacy to ACCEPT ALL\n"); bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_ACCEPT_ALL; } memset(adhoc_start->DataRate, 0, sizeof(adhoc_start->DataRate)); mwifiex_get_active_data_rates(priv, adhoc_start->DataRate); if ((adapter->adhoc_start_band & BAND_G) && (priv->curr_pkt_filter & HostCmd_ACT_MAC_ADHOC_G_PROTECTION_ON)) { if (mwifiex_send_cmd_async(priv, HostCmd_CMD_MAC_CONTROL, HostCmd_ACT_GEN_SET, 0, &priv->curr_pkt_filter)) { dev_err(adapter->dev, "ADHOC_S_CMD: G Protection config failed\n"); return -1; } } /* Find the last non zero */ for (i = 0; i < sizeof(adhoc_start->DataRate) && adhoc_start->DataRate[i]; i++) ; priv->curr_bss_params.num_of_rates = i; /* Copy the ad-hoc creating rates into Current BSS rate structure */ memcpy(&priv->curr_bss_params.data_rates, &adhoc_start->DataRate, priv->curr_bss_params.num_of_rates); dev_dbg(adapter->dev, "info: ADHOC_S_CMD: rates=%02x %02x %02x %02x\n", adhoc_start->DataRate[0], adhoc_start->DataRate[1], adhoc_start->DataRate[2], adhoc_start->DataRate[3]); dev_dbg(adapter->dev, "info: ADHOC_S_CMD: AD-HOC Start command is ready\n"); if (IS_SUPPORT_MULTI_BANDS(adapter)) { /* Append a channel TLV */ chan_tlv = (struct mwifiex_ie_types_chan_list_param_set *) pos; chan_tlv->header.type = cpu_to_le16(TLV_TYPE_CHANLIST); chan_tlv->header.len = cpu_to_le16(sizeof(struct mwifiex_chan_scan_param_set)); memset(chan_tlv->chan_scan_param, 0x00, sizeof(struct mwifiex_chan_scan_param_set)); chan_tlv->chan_scan_param[0].chan_number = (u8) priv->curr_bss_params.bss_descriptor.channel; dev_dbg(adapter->dev, "info: ADHOC_S_CMD: TLV Chan = %d\n", chan_tlv->chan_scan_param[0].chan_number); chan_tlv->chan_scan_param[0].radio_type = mwifiex_band_to_radio_type(priv->curr_bss_params.band); if (adapter->adhoc_start_band & BAND_GN || adapter->adhoc_start_band & BAND_AN) { if (adapter->chan_offset == SEC_CHANNEL_ABOVE) chan_tlv->chan_scan_param[0].radio_type |= SECOND_CHANNEL_ABOVE; else if (adapter->chan_offset == SEC_CHANNEL_BELOW) chan_tlv->chan_scan_param[0].radio_type |= SECOND_CHANNEL_BELOW; } dev_dbg(adapter->dev, "info: ADHOC_S_CMD: TLV Band = %d\n", chan_tlv->chan_scan_param[0].radio_type); pos += sizeof(chan_tlv->header) + sizeof(struct mwifiex_chan_scan_param_set); cmd_append_size += sizeof(chan_tlv->header) + sizeof(struct mwifiex_chan_scan_param_set); } /* Append vendor specific IE TLV */ cmd_append_size += mwifiex_cmd_append_vsie_tlv(priv, MWIFIEX_VSIE_MASK_ADHOC, &pos); if (priv->sec_info.wpa_enabled) { rsn_ie_len = mwifiex_append_rsn_ie_wpa_wpa2(priv, &pos); if (rsn_ie_len == -1) return -1; cmd_append_size += rsn_ie_len; } if (adapter->adhoc_11n_enabled) { { ht_cap = (struct mwifiex_ie_types_htcap *) pos; memset(ht_cap, 0, sizeof(struct mwifiex_ie_types_htcap)); ht_cap->header.type = cpu_to_le16(WLAN_EID_HT_CAPABILITY); ht_cap->header.len = cpu_to_le16(sizeof(struct ieee80211_ht_cap)); ht_cap_info = le16_to_cpu(ht_cap->ht_cap.cap_info); ht_cap_info |= IEEE80211_HT_CAP_SGI_20; if (adapter->chan_offset) { ht_cap_info |= IEEE80211_HT_CAP_SGI_40; ht_cap_info |= IEEE80211_HT_CAP_DSSSCCK40; ht_cap_info |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; SETHT_MCS32(ht_cap->ht_cap.mcs.rx_mask); } ht_cap->ht_cap.ampdu_params_info = IEEE80211_HT_MAX_AMPDU_64K; ht_cap->ht_cap.mcs.rx_mask[0] = 0xff; pos += sizeof(struct mwifiex_ie_types_htcap); cmd_append_size += sizeof(struct mwifiex_ie_types_htcap); } { ht_info = (struct mwifiex_ie_types_htinfo *) pos; memset(ht_info, 0, sizeof(struct mwifiex_ie_types_htinfo)); ht_info->header.type = cpu_to_le16(WLAN_EID_HT_INFORMATION); ht_info->header.len = cpu_to_le16(sizeof(struct ieee80211_ht_info)); ht_info->ht_info.control_chan = (u8) priv->curr_bss_params.bss_descriptor. channel; if (adapter->chan_offset) { ht_info->ht_info.ht_param = adapter->chan_offset; ht_info->ht_info.ht_param |= IEEE80211_HT_PARAM_CHAN_WIDTH_ANY; } ht_info->ht_info.operation_mode = cpu_to_le16(IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT); ht_info->ht_info.basic_set[0] = 0xff; pos += sizeof(struct mwifiex_ie_types_htinfo); cmd_append_size += sizeof(struct mwifiex_ie_types_htinfo); } } cmd->size = cpu_to_le16((u16) (sizeof(struct host_cmd_ds_802_11_ad_hoc_start) + S_DS_GEN + cmd_append_size)); if (adapter->adhoc_start_band == BAND_B) tmp_cap &= ~WLAN_CAPABILITY_SHORT_SLOT_TIME; else tmp_cap |= WLAN_CAPABILITY_SHORT_SLOT_TIME; adhoc_start->cap_info_bitmap = cpu_to_le16(tmp_cap); return 0; } /* * This function prepares command for ad-hoc join. * * Most of the parameters are set up by copying from the target BSS descriptor * from the scan response. * * In addition, the following TLVs are added - * - Channel TLV * - Vendor specific IE * - WPA/WPA2 IE * - 11n IE * * Preparation also includes - * - Setting command ID and proper size * - Ensuring correct endian-ness */ int mwifiex_cmd_802_11_ad_hoc_join(struct mwifiex_private *priv, struct host_cmd_ds_command *cmd, struct mwifiex_bssdescriptor *bss_desc) { int rsn_ie_len = 0; struct host_cmd_ds_802_11_ad_hoc_join *adhoc_join = &cmd->params.adhoc_join; struct mwifiex_ie_types_chan_list_param_set *chan_tlv; u32 cmd_append_size = 0; u16 tmp_cap; u32 i, rates_size = 0; u16 curr_pkt_filter; u8 *pos = (u8 *) adhoc_join + sizeof(struct host_cmd_ds_802_11_ad_hoc_join); /* Use G protection */ #define USE_G_PROTECTION 0x02 if (bss_desc->erp_flags & USE_G_PROTECTION) { curr_pkt_filter = priv-> curr_pkt_filter | HostCmd_ACT_MAC_ADHOC_G_PROTECTION_ON; if (mwifiex_send_cmd_async(priv, HostCmd_CMD_MAC_CONTROL, HostCmd_ACT_GEN_SET, 0, &curr_pkt_filter)) { dev_err(priv->adapter->dev, "ADHOC_J_CMD: G Protection config failed\n"); return -1; } } priv->attempted_bss_desc = bss_desc; cmd->command = cpu_to_le16(HostCmd_CMD_802_11_AD_HOC_JOIN); adhoc_join->bss_descriptor.bss_mode = HostCmd_BSS_MODE_IBSS; adhoc_join->bss_descriptor.beacon_period = cpu_to_le16(bss_desc->beacon_period); memcpy(&adhoc_join->bss_descriptor.bssid, &bss_desc->mac_address, ETH_ALEN); memcpy(&adhoc_join->bss_descriptor.ssid, &bss_desc->ssid.ssid, bss_desc->ssid.ssid_len); memcpy(&adhoc_join->bss_descriptor.phy_param_set, &bss_desc->phy_param_set, sizeof(union ieee_types_phy_param_set)); memcpy(&adhoc_join->bss_descriptor.ss_param_set, &bss_desc->ss_param_set, sizeof(union ieee_types_ss_param_set)); tmp_cap = bss_desc->cap_info_bitmap; tmp_cap &= CAPINFO_MASK; dev_dbg(priv->adapter->dev, "info: ADHOC_J_CMD: tmp_cap=%4X" " CAPINFO_MASK=%4lX\n", tmp_cap, CAPINFO_MASK); /* Information on BSSID descriptor passed to FW */ dev_dbg(priv->adapter->dev, "info: ADHOC_J_CMD: BSSID = %pM, SSID = %s\n", adhoc_join->bss_descriptor.bssid, adhoc_join->bss_descriptor.ssid); for (i = 0; i < MWIFIEX_SUPPORTED_RATES && bss_desc->supported_rates[i]; i++) ; rates_size = i; /* Copy Data Rates from the Rates recorded in scan response */ memset(adhoc_join->bss_descriptor.data_rates, 0, sizeof(adhoc_join->bss_descriptor.data_rates)); memcpy(adhoc_join->bss_descriptor.data_rates, bss_desc->supported_rates, rates_size); /* Copy the adhoc join rates into Current BSS state structure */ priv->curr_bss_params.num_of_rates = rates_size; memcpy(&priv->curr_bss_params.data_rates, bss_desc->supported_rates, rates_size); /* Copy the channel information */ priv->curr_bss_params.bss_descriptor.channel = bss_desc->channel; priv->curr_bss_params.band = (u8) bss_desc->bss_band; if (priv->sec_info.wep_status == MWIFIEX_802_11_WEP_ENABLED || priv->sec_info.wpa_enabled) tmp_cap |= WLAN_CAPABILITY_PRIVACY; if (IS_SUPPORT_MULTI_BANDS(priv->adapter)) { /* Append a channel TLV */ chan_tlv = (struct mwifiex_ie_types_chan_list_param_set *) pos; chan_tlv->header.type = cpu_to_le16(TLV_TYPE_CHANLIST); chan_tlv->header.len = cpu_to_le16(sizeof(struct mwifiex_chan_scan_param_set)); memset(chan_tlv->chan_scan_param, 0x00, sizeof(struct mwifiex_chan_scan_param_set)); chan_tlv->chan_scan_param[0].chan_number = (bss_desc->phy_param_set.ds_param_set.current_chan); dev_dbg(priv->adapter->dev, "info: ADHOC_J_CMD: TLV Chan = %d\n", chan_tlv->chan_scan_param[0].chan_number); chan_tlv->chan_scan_param[0].radio_type = mwifiex_band_to_radio_type((u8) bss_desc->bss_band); dev_dbg(priv->adapter->dev, "info: ADHOC_J_CMD: TLV Band = %d\n", chan_tlv->chan_scan_param[0].radio_type); pos += sizeof(chan_tlv->header) + sizeof(struct mwifiex_chan_scan_param_set); cmd_append_size += sizeof(chan_tlv->header) + sizeof(struct mwifiex_chan_scan_param_set); } if (priv->sec_info.wpa_enabled) rsn_ie_len = mwifiex_append_rsn_ie_wpa_wpa2(priv, &pos); if (rsn_ie_len == -1) return -1; cmd_append_size += rsn_ie_len; if (ISSUPP_11NENABLED(priv->adapter->fw_cap_info)) cmd_append_size += mwifiex_cmd_append_11n_tlv(priv, bss_desc, &pos); /* Append vendor specific IE TLV */ cmd_append_size += mwifiex_cmd_append_vsie_tlv(priv, MWIFIEX_VSIE_MASK_ADHOC, &pos); cmd->size = cpu_to_le16((u16) (sizeof(struct host_cmd_ds_802_11_ad_hoc_join) + S_DS_GEN + cmd_append_size)); adhoc_join->bss_descriptor.cap_info_bitmap = cpu_to_le16(tmp_cap); return 0; } /* * This function handles the command response of ad-hoc start and * ad-hoc join. * * The function generates a device-connected event to notify * the applications, in case of successful ad-hoc start/join, and * saves the beacon buffer. */ int mwifiex_ret_802_11_ad_hoc(struct mwifiex_private *priv, struct host_cmd_ds_command *resp) { int ret = 0; struct mwifiex_adapter *adapter = priv->adapter; struct host_cmd_ds_802_11_ad_hoc_result *adhoc_result; struct mwifiex_bssdescriptor *bss_desc; adhoc_result = &resp->params.adhoc_result; bss_desc = priv->attempted_bss_desc; /* Join result code 0 --> SUCCESS */ if (le16_to_cpu(resp->result)) { dev_err(priv->adapter->dev, "ADHOC_RESP: failed\n"); if (priv->media_connected) mwifiex_reset_connect_state(priv); memset(&priv->curr_bss_params.bss_descriptor, 0x00, sizeof(struct mwifiex_bssdescriptor)); ret = -1; goto done; } /* Send a Media Connected event, according to the Spec */ priv->media_connected = true; if (le16_to_cpu(resp->command) == HostCmd_CMD_802_11_AD_HOC_START) { dev_dbg(priv->adapter->dev, "info: ADHOC_S_RESP %s\n", bss_desc->ssid.ssid); /* Update the created network descriptor with the new BSSID */ memcpy(bss_desc->mac_address, adhoc_result->bssid, ETH_ALEN); priv->adhoc_state = ADHOC_STARTED; } else { /* * Now the join cmd should be successful. * If BSSID has changed use SSID to compare instead of BSSID */ dev_dbg(priv->adapter->dev, "info: ADHOC_J_RESP %s\n", bss_desc->ssid.ssid); /* * Make a copy of current BSSID descriptor, only needed for * join since the current descriptor is already being used * for adhoc start */ memcpy(&priv->curr_bss_params.bss_descriptor, bss_desc, sizeof(struct mwifiex_bssdescriptor)); priv->adhoc_state = ADHOC_JOINED; } dev_dbg(priv->adapter->dev, "info: ADHOC_RESP: channel = %d\n", priv->adhoc_channel); dev_dbg(priv->adapter->dev, "info: ADHOC_RESP: BSSID = %pM\n", priv->curr_bss_params.bss_descriptor.mac_address); if (!netif_carrier_ok(priv->netdev)) netif_carrier_on(priv->netdev); if (netif_queue_stopped(priv->netdev)) netif_wake_queue(priv->netdev); mwifiex_save_curr_bcn(priv); done: /* Need to indicate IOCTL complete */ if (adapter->curr_cmd->wait_q_enabled) { if (ret) adapter->cmd_wait_q.status = -1; else adapter->cmd_wait_q.status = 0; } return ret; } /* * This function associates to a specific BSS discovered in a scan. * * It clears any past association response stored for application * retrieval and calls the command preparation routine to send the * command to firmware. */ int mwifiex_associate(struct mwifiex_private *priv, struct mwifiex_bssdescriptor *bss_desc) { u8 current_bssid[ETH_ALEN]; /* Return error if the adapter or table entry is not marked as infra */ if ((priv->bss_mode != NL80211_IFTYPE_STATION) || (bss_desc->bss_mode != NL80211_IFTYPE_STATION)) return -1; memcpy(¤t_bssid, &priv->curr_bss_params.bss_descriptor.mac_address, sizeof(current_bssid)); /* Clear any past association response stored for application retrieval */ priv->assoc_rsp_size = 0; return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_ASSOCIATE, HostCmd_ACT_GEN_SET, 0, bss_desc); } /* * This function starts an ad-hoc network. * * It calls the command preparation routine to send the command to firmware. */ int mwifiex_adhoc_start(struct mwifiex_private *priv, struct mwifiex_802_11_ssid *adhoc_ssid) { dev_dbg(priv->adapter->dev, "info: Adhoc Channel = %d\n", priv->adhoc_channel); dev_dbg(priv->adapter->dev, "info: curr_bss_params.channel = %d\n", priv->curr_bss_params.bss_descriptor.channel); dev_dbg(priv->adapter->dev, "info: curr_bss_params.band = %d\n", priv->curr_bss_params.band); return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_AD_HOC_START, HostCmd_ACT_GEN_SET, 0, adhoc_ssid); } /* * This function joins an ad-hoc network found in a previous scan. * * It calls the command preparation routine to send the command to firmware, * if already not connected to the requested SSID. */ int mwifiex_adhoc_join(struct mwifiex_private *priv, struct mwifiex_bssdescriptor *bss_desc) { dev_dbg(priv->adapter->dev, "info: adhoc join: curr_bss ssid =%s\n", priv->curr_bss_params.bss_descriptor.ssid.ssid); dev_dbg(priv->adapter->dev, "info: adhoc join: curr_bss ssid_len =%u\n", priv->curr_bss_params.bss_descriptor.ssid.ssid_len); dev_dbg(priv->adapter->dev, "info: adhoc join: ssid =%s\n", bss_desc->ssid.ssid); dev_dbg(priv->adapter->dev, "info: adhoc join: ssid_len =%u\n", bss_desc->ssid.ssid_len); /* Check if the requested SSID is already joined */ if (priv->curr_bss_params.bss_descriptor.ssid.ssid_len && !mwifiex_ssid_cmp(&bss_desc->ssid, &priv->curr_bss_params.bss_descriptor.ssid) && (priv->curr_bss_params.bss_descriptor.bss_mode == NL80211_IFTYPE_ADHOC)) { dev_dbg(priv->adapter->dev, "info: ADHOC_J_CMD: new ad-hoc SSID" " is the same as current; not attempting to re-join\n"); return -1; } dev_dbg(priv->adapter->dev, "info: curr_bss_params.channel = %d\n", priv->curr_bss_params.bss_descriptor.channel); dev_dbg(priv->adapter->dev, "info: curr_bss_params.band = %c\n", priv->curr_bss_params.band); return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_AD_HOC_JOIN, HostCmd_ACT_GEN_SET, 0, bss_desc); } /* * This function deauthenticates/disconnects from infra network by sending * deauthentication request. */ static int mwifiex_deauthenticate_infra(struct mwifiex_private *priv, u8 *mac) { u8 mac_address[ETH_ALEN]; int ret; u8 zero_mac[ETH_ALEN] = { 0, 0, 0, 0, 0, 0 }; if (mac) { if (!memcmp(mac, zero_mac, sizeof(zero_mac))) memcpy((u8 *) &mac_address, (u8 *) &priv->curr_bss_params.bss_descriptor. mac_address, ETH_ALEN); else memcpy((u8 *) &mac_address, (u8 *) mac, ETH_ALEN); } else { memcpy((u8 *) &mac_address, (u8 *) &priv->curr_bss_params. bss_descriptor.mac_address, ETH_ALEN); } ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_DEAUTHENTICATE, HostCmd_ACT_GEN_SET, 0, &mac_address); return ret; } /* * This function deauthenticates/disconnects from a BSS. * * In case of infra made, it sends deauthentication request, and * in case of ad-hoc mode, a stop network request is sent to the firmware. */ int mwifiex_deauthenticate(struct mwifiex_private *priv, u8 *mac) { int ret = 0; if (priv->media_connected) { if (priv->bss_mode == NL80211_IFTYPE_STATION) { ret = mwifiex_deauthenticate_infra(priv, mac); } else if (priv->bss_mode == NL80211_IFTYPE_ADHOC) { ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_AD_HOC_STOP, HostCmd_ACT_GEN_SET, 0, NULL); } } return ret; } EXPORT_SYMBOL_GPL(mwifiex_deauthenticate); /* * This function converts band to radio type used in channel TLV. */ u8 mwifiex_band_to_radio_type(u8 band) { switch (band) { case BAND_A: case BAND_AN: case BAND_A | BAND_AN: return HostCmd_SCAN_RADIO_TYPE_A; case BAND_B: case BAND_G: case BAND_B | BAND_G: default: return HostCmd_SCAN_RADIO_TYPE_BG; } }