| /* |
| * Marvell Wireless LAN device driver: CFG80211 |
| * |
| * 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 "cfg80211.h" |
| #include "main.h" |
| |
| static const struct ieee80211_iface_limit mwifiex_ap_sta_limits[] = { |
| { |
| .max = 2, .types = BIT(NL80211_IFTYPE_STATION), |
| }, |
| { |
| .max = 1, .types = BIT(NL80211_IFTYPE_AP), |
| }, |
| }; |
| |
| static const struct ieee80211_iface_combination mwifiex_iface_comb_ap_sta = { |
| .limits = mwifiex_ap_sta_limits, |
| .num_different_channels = 1, |
| .n_limits = ARRAY_SIZE(mwifiex_ap_sta_limits), |
| .max_interfaces = MWIFIEX_MAX_BSS_NUM, |
| .beacon_int_infra_match = true, |
| }; |
| |
| static const struct ieee80211_regdomain mwifiex_world_regdom_custom = { |
| .n_reg_rules = 7, |
| .alpha2 = "99", |
| .reg_rules = { |
| /* Channel 1 - 11 */ |
| REG_RULE(2412-10, 2462+10, 40, 3, 20, 0), |
| /* Channel 12 - 13 */ |
| REG_RULE(2467-10, 2472+10, 20, 3, 20, |
| NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS), |
| /* Channel 14 */ |
| REG_RULE(2484-10, 2484+10, 20, 3, 20, |
| NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS | |
| NL80211_RRF_NO_OFDM), |
| /* Channel 36 - 48 */ |
| REG_RULE(5180-10, 5240+10, 40, 3, 20, |
| NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS), |
| /* Channel 149 - 165 */ |
| REG_RULE(5745-10, 5825+10, 40, 3, 20, |
| NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS), |
| /* Channel 52 - 64 */ |
| REG_RULE(5260-10, 5320+10, 40, 3, 30, |
| NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS | |
| NL80211_RRF_DFS), |
| /* Channel 100 - 140 */ |
| REG_RULE(5500-10, 5700+10, 40, 3, 30, |
| NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS | |
| NL80211_RRF_DFS), |
| } |
| }; |
| |
| /* |
| * This function maps the nl802.11 channel type into driver channel type. |
| * |
| * The mapping is as follows - |
| * NL80211_CHAN_NO_HT -> IEEE80211_HT_PARAM_CHA_SEC_NONE |
| * NL80211_CHAN_HT20 -> IEEE80211_HT_PARAM_CHA_SEC_NONE |
| * NL80211_CHAN_HT40PLUS -> IEEE80211_HT_PARAM_CHA_SEC_ABOVE |
| * NL80211_CHAN_HT40MINUS -> IEEE80211_HT_PARAM_CHA_SEC_BELOW |
| * Others -> IEEE80211_HT_PARAM_CHA_SEC_NONE |
| */ |
| u8 mwifiex_chan_type_to_sec_chan_offset(enum nl80211_channel_type chan_type) |
| { |
| switch (chan_type) { |
| case NL80211_CHAN_NO_HT: |
| case NL80211_CHAN_HT20: |
| return IEEE80211_HT_PARAM_CHA_SEC_NONE; |
| case NL80211_CHAN_HT40PLUS: |
| return IEEE80211_HT_PARAM_CHA_SEC_ABOVE; |
| case NL80211_CHAN_HT40MINUS: |
| return IEEE80211_HT_PARAM_CHA_SEC_BELOW; |
| default: |
| return IEEE80211_HT_PARAM_CHA_SEC_NONE; |
| } |
| } |
| |
| /* |
| * This function checks whether WEP is set. |
| */ |
| static int |
| mwifiex_is_alg_wep(u32 cipher) |
| { |
| switch (cipher) { |
| case WLAN_CIPHER_SUITE_WEP40: |
| case WLAN_CIPHER_SUITE_WEP104: |
| return 1; |
| default: |
| break; |
| } |
| |
| return 0; |
| } |
| |
| /* |
| * This function retrieves the private structure from kernel wiphy structure. |
| */ |
| static void *mwifiex_cfg80211_get_adapter(struct wiphy *wiphy) |
| { |
| return (void *) (*(unsigned long *) wiphy_priv(wiphy)); |
| } |
| |
| /* |
| * CFG802.11 operation handler to delete a network key. |
| */ |
| static int |
| mwifiex_cfg80211_del_key(struct wiphy *wiphy, struct net_device *netdev, |
| u8 key_index, bool pairwise, const u8 *mac_addr) |
| { |
| struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev); |
| const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; |
| const u8 *peer_mac = pairwise ? mac_addr : bc_mac; |
| |
| if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, peer_mac, 1)) { |
| wiphy_err(wiphy, "deleting the crypto keys\n"); |
| return -EFAULT; |
| } |
| |
| wiphy_dbg(wiphy, "info: crypto keys deleted\n"); |
| return 0; |
| } |
| |
| /* |
| * This function forms an skb for management frame. |
| */ |
| static int |
| mwifiex_form_mgmt_frame(struct sk_buff *skb, const u8 *buf, size_t len) |
| { |
| u8 addr[ETH_ALEN] = {0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}; |
| u16 pkt_len; |
| u32 tx_control = 0, pkt_type = PKT_TYPE_MGMT; |
| struct timeval tv; |
| |
| pkt_len = len + ETH_ALEN; |
| |
| skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN + |
| MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len)); |
| memcpy(skb_push(skb, sizeof(pkt_len)), &pkt_len, sizeof(pkt_len)); |
| |
| memcpy(skb_push(skb, sizeof(tx_control)), |
| &tx_control, sizeof(tx_control)); |
| |
| memcpy(skb_push(skb, sizeof(pkt_type)), &pkt_type, sizeof(pkt_type)); |
| |
| /* Add packet data and address4 */ |
| memcpy(skb_put(skb, sizeof(struct ieee80211_hdr_3addr)), buf, |
| sizeof(struct ieee80211_hdr_3addr)); |
| memcpy(skb_put(skb, ETH_ALEN), addr, ETH_ALEN); |
| memcpy(skb_put(skb, len - sizeof(struct ieee80211_hdr_3addr)), |
| buf + sizeof(struct ieee80211_hdr_3addr), |
| len - sizeof(struct ieee80211_hdr_3addr)); |
| |
| skb->priority = LOW_PRIO_TID; |
| do_gettimeofday(&tv); |
| skb->tstamp = timeval_to_ktime(tv); |
| |
| return 0; |
| } |
| |
| /* |
| * CFG802.11 operation handler to transmit a management frame. |
| */ |
| static int |
| mwifiex_cfg80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, |
| struct ieee80211_channel *chan, bool offchan, |
| unsigned int wait, const u8 *buf, size_t len, |
| bool no_cck, bool dont_wait_for_ack, u64 *cookie) |
| { |
| struct sk_buff *skb; |
| u16 pkt_len; |
| const struct ieee80211_mgmt *mgmt; |
| struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); |
| |
| if (!buf || !len) { |
| wiphy_err(wiphy, "invalid buffer and length\n"); |
| return -EFAULT; |
| } |
| |
| mgmt = (const struct ieee80211_mgmt *)buf; |
| if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA && |
| ieee80211_is_probe_resp(mgmt->frame_control)) { |
| /* Since we support offload probe resp, we need to skip probe |
| * resp in AP or GO mode */ |
| wiphy_dbg(wiphy, |
| "info: skip to send probe resp in AP or GO mode\n"); |
| return 0; |
| } |
| |
| pkt_len = len + ETH_ALEN; |
| skb = dev_alloc_skb(MWIFIEX_MIN_DATA_HEADER_LEN + |
| MWIFIEX_MGMT_FRAME_HEADER_SIZE + |
| pkt_len + sizeof(pkt_len)); |
| |
| if (!skb) { |
| wiphy_err(wiphy, "allocate skb failed for management frame\n"); |
| return -ENOMEM; |
| } |
| |
| mwifiex_form_mgmt_frame(skb, buf, len); |
| mwifiex_queue_tx_pkt(priv, skb); |
| |
| *cookie = random32() | 1; |
| cfg80211_mgmt_tx_status(wdev, *cookie, buf, len, true, GFP_ATOMIC); |
| |
| wiphy_dbg(wiphy, "info: management frame transmitted\n"); |
| return 0; |
| } |
| |
| /* |
| * CFG802.11 operation handler to register a mgmt frame. |
| */ |
| static void |
| mwifiex_cfg80211_mgmt_frame_register(struct wiphy *wiphy, |
| struct wireless_dev *wdev, |
| u16 frame_type, bool reg) |
| { |
| struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); |
| |
| if (reg) |
| priv->mgmt_frame_mask |= BIT(frame_type >> 4); |
| else |
| priv->mgmt_frame_mask &= ~BIT(frame_type >> 4); |
| |
| mwifiex_send_cmd_async(priv, HostCmd_CMD_MGMT_FRAME_REG, |
| HostCmd_ACT_GEN_SET, 0, &priv->mgmt_frame_mask); |
| |
| wiphy_dbg(wiphy, "info: mgmt frame registered\n"); |
| } |
| |
| /* |
| * CFG802.11 operation handler to remain on channel. |
| */ |
| static int |
| mwifiex_cfg80211_remain_on_channel(struct wiphy *wiphy, |
| struct wireless_dev *wdev, |
| struct ieee80211_channel *chan, |
| unsigned int duration, u64 *cookie) |
| { |
| struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); |
| int ret; |
| |
| if (!chan || !cookie) { |
| wiphy_err(wiphy, "Invalid parameter for ROC\n"); |
| return -EINVAL; |
| } |
| |
| if (priv->roc_cfg.cookie) { |
| wiphy_dbg(wiphy, "info: ongoing ROC, cookie = 0x%llu\n", |
| priv->roc_cfg.cookie); |
| return -EBUSY; |
| } |
| |
| ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_SET, chan, |
| duration); |
| |
| if (!ret) { |
| *cookie = random32() | 1; |
| priv->roc_cfg.cookie = *cookie; |
| priv->roc_cfg.chan = *chan; |
| |
| cfg80211_ready_on_channel(wdev, *cookie, chan, |
| duration, GFP_ATOMIC); |
| |
| wiphy_dbg(wiphy, "info: ROC, cookie = 0x%llx\n", *cookie); |
| } |
| |
| return ret; |
| } |
| |
| /* |
| * CFG802.11 operation handler to cancel remain on channel. |
| */ |
| static int |
| mwifiex_cfg80211_cancel_remain_on_channel(struct wiphy *wiphy, |
| struct wireless_dev *wdev, u64 cookie) |
| { |
| struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); |
| int ret; |
| |
| if (cookie != priv->roc_cfg.cookie) |
| return -ENOENT; |
| |
| ret = mwifiex_remain_on_chan_cfg(priv, HostCmd_ACT_GEN_REMOVE, |
| &priv->roc_cfg.chan, 0); |
| |
| if (!ret) { |
| cfg80211_remain_on_channel_expired(wdev, cookie, |
| &priv->roc_cfg.chan, |
| GFP_ATOMIC); |
| |
| memset(&priv->roc_cfg, 0, sizeof(struct mwifiex_roc_cfg)); |
| |
| wiphy_dbg(wiphy, "info: cancel ROC, cookie = 0x%llx\n", cookie); |
| } |
| |
| return ret; |
| } |
| |
| /* |
| * CFG802.11 operation handler to set Tx power. |
| */ |
| static int |
| mwifiex_cfg80211_set_tx_power(struct wiphy *wiphy, |
| struct wireless_dev *wdev, |
| enum nl80211_tx_power_setting type, |
| int mbm) |
| { |
| struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); |
| struct mwifiex_private *priv; |
| struct mwifiex_power_cfg power_cfg; |
| int dbm = MBM_TO_DBM(mbm); |
| |
| if (type == NL80211_TX_POWER_FIXED) { |
| power_cfg.is_power_auto = 0; |
| power_cfg.power_level = dbm; |
| } else { |
| power_cfg.is_power_auto = 1; |
| } |
| |
| priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); |
| |
| return mwifiex_set_tx_power(priv, &power_cfg); |
| } |
| |
| /* |
| * CFG802.11 operation handler to set Power Save option. |
| * |
| * The timeout value, if provided, is currently ignored. |
| */ |
| static int |
| mwifiex_cfg80211_set_power_mgmt(struct wiphy *wiphy, |
| struct net_device *dev, |
| bool enabled, int timeout) |
| { |
| struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); |
| u32 ps_mode; |
| |
| if (timeout) |
| wiphy_dbg(wiphy, |
| "info: ignore timeout value for IEEE Power Save\n"); |
| |
| ps_mode = enabled; |
| |
| return mwifiex_drv_set_power(priv, &ps_mode); |
| } |
| |
| /* |
| * CFG802.11 operation handler to set the default network key. |
| */ |
| static int |
| mwifiex_cfg80211_set_default_key(struct wiphy *wiphy, struct net_device *netdev, |
| u8 key_index, bool unicast, |
| bool multicast) |
| { |
| struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev); |
| |
| /* Return if WEP key not configured */ |
| if (!priv->sec_info.wep_enabled) |
| return 0; |
| |
| if (priv->bss_type == MWIFIEX_BSS_TYPE_UAP) { |
| priv->wep_key_curr_index = key_index; |
| } else if (mwifiex_set_encode(priv, NULL, NULL, 0, key_index, |
| NULL, 0)) { |
| wiphy_err(wiphy, "set default Tx key index\n"); |
| return -EFAULT; |
| } |
| |
| return 0; |
| } |
| |
| /* |
| * CFG802.11 operation handler to add a network key. |
| */ |
| static int |
| mwifiex_cfg80211_add_key(struct wiphy *wiphy, struct net_device *netdev, |
| u8 key_index, bool pairwise, const u8 *mac_addr, |
| struct key_params *params) |
| { |
| struct mwifiex_private *priv = mwifiex_netdev_get_priv(netdev); |
| struct mwifiex_wep_key *wep_key; |
| const u8 bc_mac[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; |
| const u8 *peer_mac = pairwise ? mac_addr : bc_mac; |
| |
| if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP && |
| (params->cipher == WLAN_CIPHER_SUITE_WEP40 || |
| params->cipher == WLAN_CIPHER_SUITE_WEP104)) { |
| if (params->key && params->key_len) { |
| wep_key = &priv->wep_key[key_index]; |
| memset(wep_key, 0, sizeof(struct mwifiex_wep_key)); |
| memcpy(wep_key->key_material, params->key, |
| params->key_len); |
| wep_key->key_index = key_index; |
| wep_key->key_length = params->key_len; |
| priv->sec_info.wep_enabled = 1; |
| } |
| return 0; |
| } |
| |
| if (mwifiex_set_encode(priv, params, params->key, params->key_len, |
| key_index, peer_mac, 0)) { |
| wiphy_err(wiphy, "crypto keys added\n"); |
| return -EFAULT; |
| } |
| |
| return 0; |
| } |
| |
| /* |
| * This function sends domain information to the firmware. |
| * |
| * The following information are passed to the firmware - |
| * - Country codes |
| * - Sub bands (first channel, number of channels, maximum Tx power) |
| */ |
| static int mwifiex_send_domain_info_cmd_fw(struct wiphy *wiphy) |
| { |
| u8 no_of_triplet = 0; |
| struct ieee80211_country_ie_triplet *t; |
| u8 no_of_parsed_chan = 0; |
| u8 first_chan = 0, next_chan = 0, max_pwr = 0; |
| u8 i, flag = 0; |
| enum ieee80211_band band; |
| struct ieee80211_supported_band *sband; |
| struct ieee80211_channel *ch; |
| struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); |
| struct mwifiex_private *priv; |
| struct mwifiex_802_11d_domain_reg *domain_info = &adapter->domain_reg; |
| |
| /* Set country code */ |
| domain_info->country_code[0] = adapter->country_code[0]; |
| domain_info->country_code[1] = adapter->country_code[1]; |
| domain_info->country_code[2] = ' '; |
| |
| band = mwifiex_band_to_radio_type(adapter->config_bands); |
| if (!wiphy->bands[band]) { |
| wiphy_err(wiphy, "11D: setting domain info in FW\n"); |
| return -1; |
| } |
| |
| sband = wiphy->bands[band]; |
| |
| for (i = 0; i < sband->n_channels ; i++) { |
| ch = &sband->channels[i]; |
| if (ch->flags & IEEE80211_CHAN_DISABLED) |
| continue; |
| |
| if (!flag) { |
| flag = 1; |
| first_chan = (u32) ch->hw_value; |
| next_chan = first_chan; |
| max_pwr = ch->max_power; |
| no_of_parsed_chan = 1; |
| continue; |
| } |
| |
| if (ch->hw_value == next_chan + 1 && |
| ch->max_power == max_pwr) { |
| next_chan++; |
| no_of_parsed_chan++; |
| } else { |
| t = &domain_info->triplet[no_of_triplet]; |
| t->chans.first_channel = first_chan; |
| t->chans.num_channels = no_of_parsed_chan; |
| t->chans.max_power = max_pwr; |
| no_of_triplet++; |
| first_chan = (u32) ch->hw_value; |
| next_chan = first_chan; |
| max_pwr = ch->max_power; |
| no_of_parsed_chan = 1; |
| } |
| } |
| |
| if (flag) { |
| t = &domain_info->triplet[no_of_triplet]; |
| t->chans.first_channel = first_chan; |
| t->chans.num_channels = no_of_parsed_chan; |
| t->chans.max_power = max_pwr; |
| no_of_triplet++; |
| } |
| |
| domain_info->no_of_triplet = no_of_triplet; |
| |
| priv = mwifiex_get_priv(adapter, MWIFIEX_BSS_ROLE_ANY); |
| |
| if (mwifiex_send_cmd_async(priv, HostCmd_CMD_802_11D_DOMAIN_INFO, |
| HostCmd_ACT_GEN_SET, 0, NULL)) { |
| wiphy_err(wiphy, "11D: setting domain info in FW\n"); |
| return -1; |
| } |
| |
| return 0; |
| } |
| |
| /* |
| * CFG802.11 regulatory domain callback function. |
| * |
| * This function is called when the regulatory domain is changed due to the |
| * following reasons - |
| * - Set by driver |
| * - Set by system core |
| * - Set by user |
| * - Set bt Country IE |
| */ |
| static void mwifiex_reg_notifier(struct wiphy *wiphy, |
| struct regulatory_request *request) |
| { |
| struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); |
| |
| wiphy_dbg(wiphy, "info: cfg80211 regulatory domain callback for %c%c\n", |
| request->alpha2[0], request->alpha2[1]); |
| |
| memcpy(adapter->country_code, request->alpha2, sizeof(request->alpha2)); |
| |
| switch (request->initiator) { |
| case NL80211_REGDOM_SET_BY_DRIVER: |
| case NL80211_REGDOM_SET_BY_CORE: |
| case NL80211_REGDOM_SET_BY_USER: |
| break; |
| /* Todo: apply driver specific changes in channel flags based |
| on the request initiator if necessary. */ |
| case NL80211_REGDOM_SET_BY_COUNTRY_IE: |
| break; |
| } |
| mwifiex_send_domain_info_cmd_fw(wiphy); |
| } |
| |
| /* |
| * This function sets the fragmentation threshold. |
| * |
| * The fragmentation threshold value must lie between MWIFIEX_FRAG_MIN_VALUE |
| * and MWIFIEX_FRAG_MAX_VALUE. |
| */ |
| static int |
| mwifiex_set_frag(struct mwifiex_private *priv, u32 frag_thr) |
| { |
| if (frag_thr < MWIFIEX_FRAG_MIN_VALUE || |
| frag_thr > MWIFIEX_FRAG_MAX_VALUE) |
| frag_thr = MWIFIEX_FRAG_MAX_VALUE; |
| |
| return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB, |
| HostCmd_ACT_GEN_SET, FRAG_THRESH_I, |
| &frag_thr); |
| } |
| |
| /* |
| * This function sets the RTS threshold. |
| |
| * The rts value must lie between MWIFIEX_RTS_MIN_VALUE |
| * and MWIFIEX_RTS_MAX_VALUE. |
| */ |
| static int |
| mwifiex_set_rts(struct mwifiex_private *priv, u32 rts_thr) |
| { |
| if (rts_thr < MWIFIEX_RTS_MIN_VALUE || rts_thr > MWIFIEX_RTS_MAX_VALUE) |
| rts_thr = MWIFIEX_RTS_MAX_VALUE; |
| |
| return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB, |
| HostCmd_ACT_GEN_SET, RTS_THRESH_I, |
| &rts_thr); |
| } |
| |
| /* |
| * CFG802.11 operation handler to set wiphy parameters. |
| * |
| * This function can be used to set the RTS threshold and the |
| * Fragmentation threshold of the driver. |
| */ |
| static int |
| mwifiex_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) |
| { |
| struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); |
| struct mwifiex_private *priv; |
| struct mwifiex_uap_bss_param *bss_cfg; |
| int ret, bss_started, i; |
| |
| for (i = 0; i < adapter->priv_num; i++) { |
| priv = adapter->priv[i]; |
| |
| switch (priv->bss_role) { |
| case MWIFIEX_BSS_ROLE_UAP: |
| bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), |
| GFP_KERNEL); |
| if (!bss_cfg) |
| return -ENOMEM; |
| |
| mwifiex_set_sys_config_invalid_data(bss_cfg); |
| |
| if (changed & WIPHY_PARAM_RTS_THRESHOLD) |
| bss_cfg->rts_threshold = wiphy->rts_threshold; |
| if (changed & WIPHY_PARAM_FRAG_THRESHOLD) |
| bss_cfg->frag_threshold = wiphy->frag_threshold; |
| if (changed & WIPHY_PARAM_RETRY_LONG) |
| bss_cfg->retry_limit = wiphy->retry_long; |
| |
| bss_started = priv->bss_started; |
| |
| ret = mwifiex_send_cmd_sync(priv, |
| HostCmd_CMD_UAP_BSS_STOP, |
| HostCmd_ACT_GEN_SET, 0, |
| NULL); |
| if (ret) { |
| wiphy_err(wiphy, "Failed to stop the BSS\n"); |
| kfree(bss_cfg); |
| return ret; |
| } |
| |
| ret = mwifiex_send_cmd_async(priv, |
| HostCmd_CMD_UAP_SYS_CONFIG, |
| HostCmd_ACT_GEN_SET, |
| UAP_BSS_PARAMS_I, bss_cfg); |
| |
| kfree(bss_cfg); |
| |
| if (ret) { |
| wiphy_err(wiphy, "Failed to set bss config\n"); |
| return ret; |
| } |
| |
| if (!bss_started) |
| break; |
| |
| ret = mwifiex_send_cmd_async(priv, |
| HostCmd_CMD_UAP_BSS_START, |
| HostCmd_ACT_GEN_SET, 0, |
| NULL); |
| if (ret) { |
| wiphy_err(wiphy, "Failed to start BSS\n"); |
| return ret; |
| } |
| |
| break; |
| case MWIFIEX_BSS_ROLE_STA: |
| if (changed & WIPHY_PARAM_RTS_THRESHOLD) { |
| ret = mwifiex_set_rts(priv, |
| wiphy->rts_threshold); |
| if (ret) |
| return ret; |
| } |
| if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { |
| ret = mwifiex_set_frag(priv, |
| wiphy->frag_threshold); |
| if (ret) |
| return ret; |
| } |
| break; |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int |
| mwifiex_cfg80211_deinit_p2p(struct mwifiex_private *priv) |
| { |
| u16 mode = P2P_MODE_DISABLE; |
| |
| if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_STA) |
| mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_STA); |
| |
| if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG, |
| HostCmd_ACT_GEN_SET, 0, &mode)) |
| return -1; |
| |
| return 0; |
| } |
| |
| /* |
| * This function initializes the functionalities for P2P client. |
| * The P2P client initialization sequence is: |
| * disable -> device -> client |
| */ |
| static int |
| mwifiex_cfg80211_init_p2p_client(struct mwifiex_private *priv) |
| { |
| u16 mode; |
| |
| if (mwifiex_cfg80211_deinit_p2p(priv)) |
| return -1; |
| |
| mode = P2P_MODE_DEVICE; |
| if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG, |
| HostCmd_ACT_GEN_SET, 0, &mode)) |
| return -1; |
| |
| mode = P2P_MODE_CLIENT; |
| if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG, |
| HostCmd_ACT_GEN_SET, 0, &mode)) |
| return -1; |
| |
| return 0; |
| } |
| |
| /* |
| * This function initializes the functionalities for P2P GO. |
| * The P2P GO initialization sequence is: |
| * disable -> device -> GO |
| */ |
| static int |
| mwifiex_cfg80211_init_p2p_go(struct mwifiex_private *priv) |
| { |
| u16 mode; |
| |
| if (mwifiex_cfg80211_deinit_p2p(priv)) |
| return -1; |
| |
| mode = P2P_MODE_DEVICE; |
| if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG, |
| HostCmd_ACT_GEN_SET, 0, &mode)) |
| return -1; |
| |
| mode = P2P_MODE_GO; |
| if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_P2P_MODE_CFG, |
| HostCmd_ACT_GEN_SET, 0, &mode)) |
| return -1; |
| |
| if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) |
| mwifiex_set_bss_role(priv, MWIFIEX_BSS_ROLE_UAP); |
| |
| return 0; |
| } |
| |
| /* |
| * CFG802.11 operation handler to change interface type. |
| */ |
| static int |
| mwifiex_cfg80211_change_virtual_intf(struct wiphy *wiphy, |
| struct net_device *dev, |
| enum nl80211_iftype type, u32 *flags, |
| struct vif_params *params) |
| { |
| int ret; |
| struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); |
| |
| switch (dev->ieee80211_ptr->iftype) { |
| case NL80211_IFTYPE_ADHOC: |
| switch (type) { |
| case NL80211_IFTYPE_STATION: |
| break; |
| case NL80211_IFTYPE_UNSPECIFIED: |
| wiphy_warn(wiphy, "%s: kept type as IBSS\n", dev->name); |
| case NL80211_IFTYPE_ADHOC: /* This shouldn't happen */ |
| return 0; |
| case NL80211_IFTYPE_AP: |
| default: |
| wiphy_err(wiphy, "%s: changing to %d not supported\n", |
| dev->name, type); |
| return -EOPNOTSUPP; |
| } |
| break; |
| case NL80211_IFTYPE_STATION: |
| switch (type) { |
| case NL80211_IFTYPE_ADHOC: |
| break; |
| case NL80211_IFTYPE_P2P_CLIENT: |
| if (mwifiex_cfg80211_init_p2p_client(priv)) |
| return -EFAULT; |
| dev->ieee80211_ptr->iftype = type; |
| return 0; |
| case NL80211_IFTYPE_P2P_GO: |
| if (mwifiex_cfg80211_init_p2p_go(priv)) |
| return -EFAULT; |
| dev->ieee80211_ptr->iftype = type; |
| return 0; |
| case NL80211_IFTYPE_UNSPECIFIED: |
| wiphy_warn(wiphy, "%s: kept type as STA\n", dev->name); |
| case NL80211_IFTYPE_STATION: /* This shouldn't happen */ |
| return 0; |
| case NL80211_IFTYPE_AP: |
| default: |
| wiphy_err(wiphy, "%s: changing to %d not supported\n", |
| dev->name, type); |
| return -EOPNOTSUPP; |
| } |
| break; |
| case NL80211_IFTYPE_AP: |
| switch (type) { |
| case NL80211_IFTYPE_UNSPECIFIED: |
| wiphy_warn(wiphy, "%s: kept type as AP\n", dev->name); |
| case NL80211_IFTYPE_AP: /* This shouldn't happen */ |
| return 0; |
| case NL80211_IFTYPE_ADHOC: |
| case NL80211_IFTYPE_STATION: |
| default: |
| wiphy_err(wiphy, "%s: changing to %d not supported\n", |
| dev->name, type); |
| return -EOPNOTSUPP; |
| } |
| break; |
| case NL80211_IFTYPE_P2P_CLIENT: |
| case NL80211_IFTYPE_P2P_GO: |
| switch (type) { |
| case NL80211_IFTYPE_STATION: |
| if (mwifiex_cfg80211_deinit_p2p(priv)) |
| return -EFAULT; |
| dev->ieee80211_ptr->iftype = type; |
| return 0; |
| default: |
| return -EOPNOTSUPP; |
| } |
| break; |
| default: |
| wiphy_err(wiphy, "%s: unknown iftype: %d\n", |
| dev->name, dev->ieee80211_ptr->iftype); |
| return -EOPNOTSUPP; |
| } |
| |
| dev->ieee80211_ptr->iftype = type; |
| priv->bss_mode = type; |
| mwifiex_deauthenticate(priv, NULL); |
| |
| priv->sec_info.authentication_mode = NL80211_AUTHTYPE_OPEN_SYSTEM; |
| |
| ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_SET_BSS_MODE, |
| HostCmd_ACT_GEN_SET, 0, NULL); |
| |
| return ret; |
| } |
| |
| /* |
| * This function dumps the station information on a buffer. |
| * |
| * The following information are shown - |
| * - Total bytes transmitted |
| * - Total bytes received |
| * - Total packets transmitted |
| * - Total packets received |
| * - Signal quality level |
| * - Transmission rate |
| */ |
| static int |
| mwifiex_dump_station_info(struct mwifiex_private *priv, |
| struct station_info *sinfo) |
| { |
| u32 rate; |
| |
| sinfo->filled = STATION_INFO_RX_BYTES | STATION_INFO_TX_BYTES | |
| STATION_INFO_RX_PACKETS | STATION_INFO_TX_PACKETS | |
| STATION_INFO_TX_BITRATE | |
| STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG; |
| |
| /* Get signal information from the firmware */ |
| if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_RSSI_INFO, |
| HostCmd_ACT_GEN_GET, 0, NULL)) { |
| dev_err(priv->adapter->dev, "failed to get signal information\n"); |
| return -EFAULT; |
| } |
| |
| if (mwifiex_drv_get_data_rate(priv, &rate)) { |
| dev_err(priv->adapter->dev, "getting data rate\n"); |
| return -EFAULT; |
| } |
| |
| /* Get DTIM period information from firmware */ |
| mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_SNMP_MIB, |
| HostCmd_ACT_GEN_GET, DTIM_PERIOD_I, |
| &priv->dtim_period); |
| |
| /* |
| * Bit 0 in tx_htinfo indicates that current Tx rate is 11n rate. Valid |
| * MCS index values for us are 0 to 15. |
| */ |
| if ((priv->tx_htinfo & BIT(0)) && (priv->tx_rate < 16)) { |
| sinfo->txrate.mcs = priv->tx_rate; |
| sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS; |
| /* 40MHz rate */ |
| if (priv->tx_htinfo & BIT(1)) |
| sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH; |
| /* SGI enabled */ |
| if (priv->tx_htinfo & BIT(2)) |
| sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI; |
| } |
| |
| sinfo->signal_avg = priv->bcn_rssi_avg; |
| sinfo->rx_bytes = priv->stats.rx_bytes; |
| sinfo->tx_bytes = priv->stats.tx_bytes; |
| sinfo->rx_packets = priv->stats.rx_packets; |
| sinfo->tx_packets = priv->stats.tx_packets; |
| sinfo->signal = priv->bcn_rssi_avg; |
| /* bit rate is in 500 kb/s units. Convert it to 100kb/s units */ |
| sinfo->txrate.legacy = rate * 5; |
| |
| if (priv->bss_mode == NL80211_IFTYPE_STATION) { |
| sinfo->filled |= STATION_INFO_BSS_PARAM; |
| sinfo->bss_param.flags = 0; |
| if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap & |
| WLAN_CAPABILITY_SHORT_PREAMBLE) |
| sinfo->bss_param.flags |= |
| BSS_PARAM_FLAGS_SHORT_PREAMBLE; |
| if (priv->curr_bss_params.bss_descriptor.cap_info_bitmap & |
| WLAN_CAPABILITY_SHORT_SLOT_TIME) |
| sinfo->bss_param.flags |= |
| BSS_PARAM_FLAGS_SHORT_SLOT_TIME; |
| sinfo->bss_param.dtim_period = priv->dtim_period; |
| sinfo->bss_param.beacon_interval = |
| priv->curr_bss_params.bss_descriptor.beacon_period; |
| } |
| |
| return 0; |
| } |
| |
| /* |
| * CFG802.11 operation handler to get station information. |
| * |
| * This function only works in connected mode, and dumps the |
| * requested station information, if available. |
| */ |
| static int |
| mwifiex_cfg80211_get_station(struct wiphy *wiphy, struct net_device *dev, |
| u8 *mac, struct station_info *sinfo) |
| { |
| struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); |
| |
| if (!priv->media_connected) |
| return -ENOENT; |
| if (memcmp(mac, priv->cfg_bssid, ETH_ALEN)) |
| return -ENOENT; |
| |
| return mwifiex_dump_station_info(priv, sinfo); |
| } |
| |
| /* |
| * CFG802.11 operation handler to dump station information. |
| */ |
| static int |
| mwifiex_cfg80211_dump_station(struct wiphy *wiphy, struct net_device *dev, |
| int idx, u8 *mac, struct station_info *sinfo) |
| { |
| struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); |
| |
| if (!priv->media_connected || idx) |
| return -ENOENT; |
| |
| memcpy(mac, priv->cfg_bssid, ETH_ALEN); |
| |
| return mwifiex_dump_station_info(priv, sinfo); |
| } |
| |
| /* Supported rates to be advertised to the cfg80211 */ |
| static struct ieee80211_rate mwifiex_rates[] = { |
| {.bitrate = 10, .hw_value = 2, }, |
| {.bitrate = 20, .hw_value = 4, }, |
| {.bitrate = 55, .hw_value = 11, }, |
| {.bitrate = 110, .hw_value = 22, }, |
| {.bitrate = 60, .hw_value = 12, }, |
| {.bitrate = 90, .hw_value = 18, }, |
| {.bitrate = 120, .hw_value = 24, }, |
| {.bitrate = 180, .hw_value = 36, }, |
| {.bitrate = 240, .hw_value = 48, }, |
| {.bitrate = 360, .hw_value = 72, }, |
| {.bitrate = 480, .hw_value = 96, }, |
| {.bitrate = 540, .hw_value = 108, }, |
| }; |
| |
| /* Channel definitions to be advertised to cfg80211 */ |
| static struct ieee80211_channel mwifiex_channels_2ghz[] = { |
| {.center_freq = 2412, .hw_value = 1, }, |
| {.center_freq = 2417, .hw_value = 2, }, |
| {.center_freq = 2422, .hw_value = 3, }, |
| {.center_freq = 2427, .hw_value = 4, }, |
| {.center_freq = 2432, .hw_value = 5, }, |
| {.center_freq = 2437, .hw_value = 6, }, |
| {.center_freq = 2442, .hw_value = 7, }, |
| {.center_freq = 2447, .hw_value = 8, }, |
| {.center_freq = 2452, .hw_value = 9, }, |
| {.center_freq = 2457, .hw_value = 10, }, |
| {.center_freq = 2462, .hw_value = 11, }, |
| {.center_freq = 2467, .hw_value = 12, }, |
| {.center_freq = 2472, .hw_value = 13, }, |
| {.center_freq = 2484, .hw_value = 14, }, |
| }; |
| |
| static struct ieee80211_supported_band mwifiex_band_2ghz = { |
| .channels = mwifiex_channels_2ghz, |
| .n_channels = ARRAY_SIZE(mwifiex_channels_2ghz), |
| .bitrates = mwifiex_rates, |
| .n_bitrates = ARRAY_SIZE(mwifiex_rates), |
| }; |
| |
| static struct ieee80211_channel mwifiex_channels_5ghz[] = { |
| {.center_freq = 5040, .hw_value = 8, }, |
| {.center_freq = 5060, .hw_value = 12, }, |
| {.center_freq = 5080, .hw_value = 16, }, |
| {.center_freq = 5170, .hw_value = 34, }, |
| {.center_freq = 5190, .hw_value = 38, }, |
| {.center_freq = 5210, .hw_value = 42, }, |
| {.center_freq = 5230, .hw_value = 46, }, |
| {.center_freq = 5180, .hw_value = 36, }, |
| {.center_freq = 5200, .hw_value = 40, }, |
| {.center_freq = 5220, .hw_value = 44, }, |
| {.center_freq = 5240, .hw_value = 48, }, |
| {.center_freq = 5260, .hw_value = 52, }, |
| {.center_freq = 5280, .hw_value = 56, }, |
| {.center_freq = 5300, .hw_value = 60, }, |
| {.center_freq = 5320, .hw_value = 64, }, |
| {.center_freq = 5500, .hw_value = 100, }, |
| {.center_freq = 5520, .hw_value = 104, }, |
| {.center_freq = 5540, .hw_value = 108, }, |
| {.center_freq = 5560, .hw_value = 112, }, |
| {.center_freq = 5580, .hw_value = 116, }, |
| {.center_freq = 5600, .hw_value = 120, }, |
| {.center_freq = 5620, .hw_value = 124, }, |
| {.center_freq = 5640, .hw_value = 128, }, |
| {.center_freq = 5660, .hw_value = 132, }, |
| {.center_freq = 5680, .hw_value = 136, }, |
| {.center_freq = 5700, .hw_value = 140, }, |
| {.center_freq = 5745, .hw_value = 149, }, |
| {.center_freq = 5765, .hw_value = 153, }, |
| {.center_freq = 5785, .hw_value = 157, }, |
| {.center_freq = 5805, .hw_value = 161, }, |
| {.center_freq = 5825, .hw_value = 165, }, |
| }; |
| |
| static struct ieee80211_supported_band mwifiex_band_5ghz = { |
| .channels = mwifiex_channels_5ghz, |
| .n_channels = ARRAY_SIZE(mwifiex_channels_5ghz), |
| .bitrates = mwifiex_rates + 4, |
| .n_bitrates = ARRAY_SIZE(mwifiex_rates) - 4, |
| }; |
| |
| |
| /* Supported crypto cipher suits to be advertised to cfg80211 */ |
| static const u32 mwifiex_cipher_suites[] = { |
| WLAN_CIPHER_SUITE_WEP40, |
| WLAN_CIPHER_SUITE_WEP104, |
| WLAN_CIPHER_SUITE_TKIP, |
| WLAN_CIPHER_SUITE_CCMP, |
| WLAN_CIPHER_SUITE_AES_CMAC, |
| }; |
| |
| /* Supported mgmt frame types to be advertised to cfg80211 */ |
| static const struct ieee80211_txrx_stypes |
| mwifiex_mgmt_stypes[NUM_NL80211_IFTYPES] = { |
| [NL80211_IFTYPE_STATION] = { |
| .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | |
| BIT(IEEE80211_STYPE_PROBE_RESP >> 4), |
| .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | |
| BIT(IEEE80211_STYPE_PROBE_REQ >> 4), |
| }, |
| [NL80211_IFTYPE_AP] = { |
| .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | |
| BIT(IEEE80211_STYPE_PROBE_RESP >> 4), |
| .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | |
| BIT(IEEE80211_STYPE_PROBE_REQ >> 4), |
| }, |
| [NL80211_IFTYPE_P2P_CLIENT] = { |
| .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | |
| BIT(IEEE80211_STYPE_PROBE_RESP >> 4), |
| .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | |
| BIT(IEEE80211_STYPE_PROBE_REQ >> 4), |
| }, |
| [NL80211_IFTYPE_P2P_GO] = { |
| .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | |
| BIT(IEEE80211_STYPE_PROBE_RESP >> 4), |
| .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | |
| BIT(IEEE80211_STYPE_PROBE_REQ >> 4), |
| }, |
| }; |
| |
| /* |
| * CFG802.11 operation handler for setting bit rates. |
| * |
| * Function configures data rates to firmware using bitrate mask |
| * provided by cfg80211. |
| */ |
| static int mwifiex_cfg80211_set_bitrate_mask(struct wiphy *wiphy, |
| struct net_device *dev, |
| const u8 *peer, |
| const struct cfg80211_bitrate_mask *mask) |
| { |
| struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); |
| u16 bitmap_rates[MAX_BITMAP_RATES_SIZE]; |
| enum ieee80211_band band; |
| |
| if (!priv->media_connected) { |
| dev_err(priv->adapter->dev, |
| "Can not set Tx data rate in disconnected state\n"); |
| return -EINVAL; |
| } |
| |
| band = mwifiex_band_to_radio_type(priv->curr_bss_params.band); |
| |
| memset(bitmap_rates, 0, sizeof(bitmap_rates)); |
| |
| /* Fill HR/DSSS rates. */ |
| if (band == IEEE80211_BAND_2GHZ) |
| bitmap_rates[0] = mask->control[band].legacy & 0x000f; |
| |
| /* Fill OFDM rates */ |
| if (band == IEEE80211_BAND_2GHZ) |
| bitmap_rates[1] = (mask->control[band].legacy & 0x0ff0) >> 4; |
| else |
| bitmap_rates[1] = mask->control[band].legacy; |
| |
| /* Fill MCS rates */ |
| bitmap_rates[2] = mask->control[band].mcs[0]; |
| if (priv->adapter->hw_dev_mcs_support == HT_STREAM_2X2) |
| bitmap_rates[2] |= mask->control[band].mcs[1] << 8; |
| |
| return mwifiex_send_cmd_sync(priv, HostCmd_CMD_TX_RATE_CFG, |
| HostCmd_ACT_GEN_SET, 0, bitmap_rates); |
| } |
| |
| /* |
| * CFG802.11 operation handler for connection quality monitoring. |
| * |
| * This function subscribes/unsubscribes HIGH_RSSI and LOW_RSSI |
| * events to FW. |
| */ |
| static int mwifiex_cfg80211_set_cqm_rssi_config(struct wiphy *wiphy, |
| struct net_device *dev, |
| s32 rssi_thold, u32 rssi_hyst) |
| { |
| struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); |
| struct mwifiex_ds_misc_subsc_evt subsc_evt; |
| |
| priv->cqm_rssi_thold = rssi_thold; |
| priv->cqm_rssi_hyst = rssi_hyst; |
| |
| memset(&subsc_evt, 0x00, sizeof(struct mwifiex_ds_misc_subsc_evt)); |
| subsc_evt.events = BITMASK_BCN_RSSI_LOW | BITMASK_BCN_RSSI_HIGH; |
| |
| /* Subscribe/unsubscribe low and high rssi events */ |
| if (rssi_thold && rssi_hyst) { |
| subsc_evt.action = HostCmd_ACT_BITWISE_SET; |
| subsc_evt.bcn_l_rssi_cfg.abs_value = abs(rssi_thold); |
| subsc_evt.bcn_h_rssi_cfg.abs_value = abs(rssi_thold); |
| subsc_evt.bcn_l_rssi_cfg.evt_freq = 1; |
| subsc_evt.bcn_h_rssi_cfg.evt_freq = 1; |
| return mwifiex_send_cmd_sync(priv, |
| HostCmd_CMD_802_11_SUBSCRIBE_EVENT, |
| 0, 0, &subsc_evt); |
| } else { |
| subsc_evt.action = HostCmd_ACT_BITWISE_CLR; |
| return mwifiex_send_cmd_sync(priv, |
| HostCmd_CMD_802_11_SUBSCRIBE_EVENT, |
| 0, 0, &subsc_evt); |
| } |
| |
| return 0; |
| } |
| |
| /* cfg80211 operation handler for change_beacon. |
| * Function retrieves and sets modified management IEs to FW. |
| */ |
| static int mwifiex_cfg80211_change_beacon(struct wiphy *wiphy, |
| struct net_device *dev, |
| struct cfg80211_beacon_data *data) |
| { |
| struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); |
| |
| if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) { |
| wiphy_err(wiphy, "%s: bss_type mismatched\n", __func__); |
| return -EINVAL; |
| } |
| |
| if (!priv->bss_started) { |
| wiphy_err(wiphy, "%s: bss not started\n", __func__); |
| return -EINVAL; |
| } |
| |
| if (mwifiex_set_mgmt_ies(priv, data)) { |
| wiphy_err(wiphy, "%s: setting mgmt ies failed\n", __func__); |
| return -EFAULT; |
| } |
| |
| return 0; |
| } |
| |
| static int |
| mwifiex_cfg80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) |
| { |
| struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); |
| struct mwifiex_private *priv = mwifiex_get_priv(adapter, |
| MWIFIEX_BSS_ROLE_ANY); |
| struct mwifiex_ds_ant_cfg ant_cfg; |
| |
| if (!tx_ant || !rx_ant) |
| return -EOPNOTSUPP; |
| |
| if (adapter->hw_dev_mcs_support != HT_STREAM_2X2) { |
| /* Not a MIMO chip. User should provide specific antenna number |
| * for Tx/Rx path or enable all antennas for diversity |
| */ |
| if (tx_ant != rx_ant) |
| return -EOPNOTSUPP; |
| |
| if ((tx_ant & (tx_ant - 1)) && |
| (tx_ant != BIT(adapter->number_of_antenna) - 1)) |
| return -EOPNOTSUPP; |
| |
| if ((tx_ant == BIT(adapter->number_of_antenna) - 1) && |
| (priv->adapter->number_of_antenna > 1)) { |
| tx_ant = RF_ANTENNA_AUTO; |
| rx_ant = RF_ANTENNA_AUTO; |
| } |
| } |
| |
| ant_cfg.tx_ant = tx_ant; |
| ant_cfg.rx_ant = rx_ant; |
| |
| return mwifiex_send_cmd_sync(priv, HostCmd_CMD_RF_ANTENNA, |
| HostCmd_ACT_GEN_SET, 0, &ant_cfg); |
| } |
| |
| /* cfg80211 operation handler for stop ap. |
| * Function stops BSS running at uAP interface. |
| */ |
| static int mwifiex_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) |
| { |
| struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); |
| |
| if (mwifiex_del_mgmt_ies(priv)) |
| wiphy_err(wiphy, "Failed to delete mgmt IEs!\n"); |
| |
| priv->ap_11n_enabled = 0; |
| |
| if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_UAP_BSS_STOP, |
| HostCmd_ACT_GEN_SET, 0, NULL)) { |
| wiphy_err(wiphy, "Failed to stop the BSS\n"); |
| return -1; |
| } |
| |
| return 0; |
| } |
| |
| /* cfg80211 operation handler for start_ap. |
| * Function sets beacon period, DTIM period, SSID and security into |
| * AP config structure. |
| * AP is configured with these settings and BSS is started. |
| */ |
| static int mwifiex_cfg80211_start_ap(struct wiphy *wiphy, |
| struct net_device *dev, |
| struct cfg80211_ap_settings *params) |
| { |
| struct mwifiex_uap_bss_param *bss_cfg; |
| struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); |
| u8 config_bands = 0; |
| |
| if (GET_BSS_ROLE(priv) != MWIFIEX_BSS_ROLE_UAP) |
| return -1; |
| if (mwifiex_set_mgmt_ies(priv, ¶ms->beacon)) |
| return -1; |
| |
| bss_cfg = kzalloc(sizeof(struct mwifiex_uap_bss_param), GFP_KERNEL); |
| if (!bss_cfg) |
| return -ENOMEM; |
| |
| mwifiex_set_sys_config_invalid_data(bss_cfg); |
| |
| if (params->beacon_interval) |
| bss_cfg->beacon_period = params->beacon_interval; |
| if (params->dtim_period) |
| bss_cfg->dtim_period = params->dtim_period; |
| |
| if (params->ssid && params->ssid_len) { |
| memcpy(bss_cfg->ssid.ssid, params->ssid, params->ssid_len); |
| bss_cfg->ssid.ssid_len = params->ssid_len; |
| } |
| |
| switch (params->hidden_ssid) { |
| case NL80211_HIDDEN_SSID_NOT_IN_USE: |
| bss_cfg->bcast_ssid_ctl = 1; |
| break; |
| case NL80211_HIDDEN_SSID_ZERO_LEN: |
| bss_cfg->bcast_ssid_ctl = 0; |
| break; |
| case NL80211_HIDDEN_SSID_ZERO_CONTENTS: |
| /* firmware doesn't support this type of hidden SSID */ |
| default: |
| kfree(bss_cfg); |
| return -EINVAL; |
| } |
| |
| bss_cfg->channel = ieee80211_frequency_to_channel( |
| params->chandef.chan->center_freq); |
| |
| /* Set appropriate bands */ |
| if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) { |
| bss_cfg->band_cfg = BAND_CONFIG_BG; |
| |
| if (cfg80211_get_chandef_type(¶ms->chandef) == |
| NL80211_CHAN_NO_HT) |
| config_bands = BAND_B | BAND_G; |
| else |
| config_bands = BAND_B | BAND_G | BAND_GN; |
| } else { |
| bss_cfg->band_cfg = BAND_CONFIG_A; |
| |
| if (cfg80211_get_chandef_type(¶ms->chandef) == |
| NL80211_CHAN_NO_HT) |
| config_bands = BAND_A; |
| else |
| config_bands = BAND_AN | BAND_A; |
| } |
| |
| if (!((config_bands | priv->adapter->fw_bands) & |
| ~priv->adapter->fw_bands)) |
| priv->adapter->config_bands = config_bands; |
| |
| mwifiex_set_uap_rates(bss_cfg, params); |
| mwifiex_send_domain_info_cmd_fw(wiphy); |
| |
| if (mwifiex_set_secure_params(priv, bss_cfg, params)) { |
| kfree(bss_cfg); |
| wiphy_err(wiphy, "Failed to parse secuirty parameters!\n"); |
| return -1; |
| } |
| |
| mwifiex_set_ht_params(priv, bss_cfg, params); |
| mwifiex_set_wmm_params(priv, bss_cfg, params); |
| |
| if (params->inactivity_timeout > 0) { |
| /* sta_ao_timer/ps_sta_ao_timer is in unit of 100ms */ |
| bss_cfg->sta_ao_timer = 10 * params->inactivity_timeout; |
| bss_cfg->ps_sta_ao_timer = 10 * params->inactivity_timeout; |
| } |
| |
| if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_UAP_BSS_STOP, |
| HostCmd_ACT_GEN_SET, 0, NULL)) { |
| wiphy_err(wiphy, "Failed to stop the BSS\n"); |
| kfree(bss_cfg); |
| return -1; |
| } |
| |
| if (mwifiex_send_cmd_async(priv, HostCmd_CMD_UAP_SYS_CONFIG, |
| HostCmd_ACT_GEN_SET, |
| UAP_BSS_PARAMS_I, bss_cfg)) { |
| wiphy_err(wiphy, "Failed to set the SSID\n"); |
| kfree(bss_cfg); |
| return -1; |
| } |
| |
| kfree(bss_cfg); |
| |
| if (mwifiex_send_cmd_async(priv, HostCmd_CMD_UAP_BSS_START, |
| HostCmd_ACT_GEN_SET, 0, NULL)) { |
| wiphy_err(wiphy, "Failed to start the BSS\n"); |
| return -1; |
| } |
| |
| if (priv->sec_info.wep_enabled) |
| priv->curr_pkt_filter |= HostCmd_ACT_MAC_WEP_ENABLE; |
| else |
| priv->curr_pkt_filter &= ~HostCmd_ACT_MAC_WEP_ENABLE; |
| |
| if (mwifiex_send_cmd_sync(priv, HostCmd_CMD_MAC_CONTROL, |
| HostCmd_ACT_GEN_SET, 0, |
| &priv->curr_pkt_filter)) |
| return -1; |
| |
| return 0; |
| } |
| |
| /* |
| * CFG802.11 operation handler for disconnection request. |
| * |
| * This function does not work when there is already a disconnection |
| * procedure going on. |
| */ |
| static int |
| mwifiex_cfg80211_disconnect(struct wiphy *wiphy, struct net_device *dev, |
| u16 reason_code) |
| { |
| struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); |
| |
| if (mwifiex_deauthenticate(priv, NULL)) |
| return -EFAULT; |
| |
| wiphy_dbg(wiphy, "info: successfully disconnected from %pM:" |
| " reason code %d\n", priv->cfg_bssid, reason_code); |
| |
| memset(priv->cfg_bssid, 0, ETH_ALEN); |
| |
| return 0; |
| } |
| |
| /* |
| * This function informs the CFG802.11 subsystem of a new IBSS. |
| * |
| * The following information are sent to the CFG802.11 subsystem |
| * to register the new IBSS. If we do not register the new IBSS, |
| * a kernel panic will result. |
| * - SSID |
| * - SSID length |
| * - BSSID |
| * - Channel |
| */ |
| static int mwifiex_cfg80211_inform_ibss_bss(struct mwifiex_private *priv) |
| { |
| struct ieee80211_channel *chan; |
| struct mwifiex_bss_info bss_info; |
| struct cfg80211_bss *bss; |
| int ie_len; |
| u8 ie_buf[IEEE80211_MAX_SSID_LEN + sizeof(struct ieee_types_header)]; |
| enum ieee80211_band band; |
| |
| if (mwifiex_get_bss_info(priv, &bss_info)) |
| return -1; |
| |
| ie_buf[0] = WLAN_EID_SSID; |
| ie_buf[1] = bss_info.ssid.ssid_len; |
| |
| memcpy(&ie_buf[sizeof(struct ieee_types_header)], |
| &bss_info.ssid.ssid, bss_info.ssid.ssid_len); |
| ie_len = ie_buf[1] + sizeof(struct ieee_types_header); |
| |
| band = mwifiex_band_to_radio_type(priv->curr_bss_params.band); |
| chan = __ieee80211_get_channel(priv->wdev->wiphy, |
| ieee80211_channel_to_frequency(bss_info.bss_chan, |
| band)); |
| |
| bss = cfg80211_inform_bss(priv->wdev->wiphy, chan, |
| bss_info.bssid, 0, WLAN_CAPABILITY_IBSS, |
| 0, ie_buf, ie_len, 0, GFP_KERNEL); |
| cfg80211_put_bss(bss); |
| memcpy(priv->cfg_bssid, bss_info.bssid, ETH_ALEN); |
| |
| return 0; |
| } |
| |
| /* |
| * This function connects with a BSS. |
| * |
| * This function handles both Infra and Ad-Hoc modes. It also performs |
| * validity checking on the provided parameters, disconnects from the |
| * current BSS (if any), sets up the association/scan parameters, |
| * including security settings, and performs specific SSID scan before |
| * trying to connect. |
| * |
| * For Infra mode, the function returns failure if the specified SSID |
| * is not found in scan table. However, for Ad-Hoc mode, it can create |
| * the IBSS if it does not exist. On successful completion in either case, |
| * the function notifies the CFG802.11 subsystem of the new BSS connection. |
| */ |
| static int |
| mwifiex_cfg80211_assoc(struct mwifiex_private *priv, size_t ssid_len, u8 *ssid, |
| u8 *bssid, int mode, struct ieee80211_channel *channel, |
| struct cfg80211_connect_params *sme, bool privacy) |
| { |
| struct cfg80211_ssid req_ssid; |
| int ret, auth_type = 0; |
| struct cfg80211_bss *bss = NULL; |
| u8 is_scanning_required = 0; |
| |
| memset(&req_ssid, 0, sizeof(struct cfg80211_ssid)); |
| |
| req_ssid.ssid_len = ssid_len; |
| if (ssid_len > IEEE80211_MAX_SSID_LEN) { |
| dev_err(priv->adapter->dev, "invalid SSID - aborting\n"); |
| return -EINVAL; |
| } |
| |
| memcpy(req_ssid.ssid, ssid, ssid_len); |
| if (!req_ssid.ssid_len || req_ssid.ssid[0] < 0x20) { |
| dev_err(priv->adapter->dev, "invalid SSID - aborting\n"); |
| return -EINVAL; |
| } |
| |
| /* disconnect before try to associate */ |
| mwifiex_deauthenticate(priv, NULL); |
| |
| /* As this is new association, clear locally stored |
| * keys and security related flags */ |
| priv->sec_info.wpa_enabled = false; |
| priv->sec_info.wpa2_enabled = false; |
| priv->wep_key_curr_index = 0; |
| priv->sec_info.encryption_mode = 0; |
| priv->sec_info.is_authtype_auto = 0; |
| ret = mwifiex_set_encode(priv, NULL, NULL, 0, 0, NULL, 1); |
| |
| if (mode == NL80211_IFTYPE_ADHOC) { |
| /* "privacy" is set only for ad-hoc mode */ |
| if (privacy) { |
| /* |
| * Keep WLAN_CIPHER_SUITE_WEP104 for now so that |
| * the firmware can find a matching network from the |
| * scan. The cfg80211 does not give us the encryption |
| * mode at this stage so just setting it to WEP here. |
| */ |
| priv->sec_info.encryption_mode = |
| WLAN_CIPHER_SUITE_WEP104; |
| priv->sec_info.authentication_mode = |
| NL80211_AUTHTYPE_OPEN_SYSTEM; |
| } |
| |
| goto done; |
| } |
| |
| /* Now handle infra mode. "sme" is valid for infra mode only */ |
| if (sme->auth_type == NL80211_AUTHTYPE_AUTOMATIC) { |
| auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM; |
| priv->sec_info.is_authtype_auto = 1; |
| } else { |
| auth_type = sme->auth_type; |
| } |
| |
| if (sme->crypto.n_ciphers_pairwise) { |
| priv->sec_info.encryption_mode = |
| sme->crypto.ciphers_pairwise[0]; |
| priv->sec_info.authentication_mode = auth_type; |
| } |
| |
| if (sme->crypto.cipher_group) { |
| priv->sec_info.encryption_mode = sme->crypto.cipher_group; |
| priv->sec_info.authentication_mode = auth_type; |
| } |
| if (sme->ie) |
| ret = mwifiex_set_gen_ie(priv, sme->ie, sme->ie_len); |
| |
| if (sme->key) { |
| if (mwifiex_is_alg_wep(priv->sec_info.encryption_mode)) { |
| dev_dbg(priv->adapter->dev, |
| "info: setting wep encryption" |
| " with key len %d\n", sme->key_len); |
| priv->wep_key_curr_index = sme->key_idx; |
| ret = mwifiex_set_encode(priv, NULL, sme->key, |
| sme->key_len, sme->key_idx, |
| NULL, 0); |
| } |
| } |
| done: |
| /* |
| * Scan entries are valid for some time (15 sec). So we can save one |
| * active scan time if we just try cfg80211_get_bss first. If it fails |
| * then request scan and cfg80211_get_bss() again for final output. |
| */ |
| while (1) { |
| if (is_scanning_required) { |
| /* Do specific SSID scanning */ |
| if (mwifiex_request_scan(priv, &req_ssid)) { |
| dev_err(priv->adapter->dev, "scan error\n"); |
| return -EFAULT; |
| } |
| } |
| |
| /* Find the BSS we want using available scan results */ |
| if (mode == NL80211_IFTYPE_ADHOC) |
| bss = cfg80211_get_bss(priv->wdev->wiphy, channel, |
| bssid, ssid, ssid_len, |
| WLAN_CAPABILITY_IBSS, |
| WLAN_CAPABILITY_IBSS); |
| else |
| bss = cfg80211_get_bss(priv->wdev->wiphy, channel, |
| bssid, ssid, ssid_len, |
| WLAN_CAPABILITY_ESS, |
| WLAN_CAPABILITY_ESS); |
| |
| if (!bss) { |
| if (is_scanning_required) { |
| dev_warn(priv->adapter->dev, |
| "assoc: requested bss not found in scan results\n"); |
| break; |
| } |
| is_scanning_required = 1; |
| } else { |
| dev_dbg(priv->adapter->dev, |
| "info: trying to associate to '%s' bssid %pM\n", |
| (char *) req_ssid.ssid, bss->bssid); |
| memcpy(&priv->cfg_bssid, bss->bssid, ETH_ALEN); |
| break; |
| } |
| } |
| |
| ret = mwifiex_bss_start(priv, bss, &req_ssid); |
| if (ret) |
| return ret; |
| |
| if (mode == NL80211_IFTYPE_ADHOC) { |
| /* Inform the BSS information to kernel, otherwise |
| * kernel will give a panic after successful assoc */ |
| if (mwifiex_cfg80211_inform_ibss_bss(priv)) |
| return -EFAULT; |
| } |
| |
| return ret; |
| } |
| |
| /* |
| * CFG802.11 operation handler for association request. |
| * |
| * This function does not work when the current mode is set to Ad-Hoc, or |
| * when there is already an association procedure going on. The given BSS |
| * information is used to associate. |
| */ |
| static int |
| mwifiex_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev, |
| struct cfg80211_connect_params *sme) |
| { |
| struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); |
| int ret = 0; |
| |
| if (priv->bss_mode == NL80211_IFTYPE_ADHOC) { |
| wiphy_err(wiphy, "received infra assoc request " |
| "when station is in ibss mode\n"); |
| goto done; |
| } |
| |
| if (priv->bss_mode == NL80211_IFTYPE_AP) { |
| wiphy_err(wiphy, "skip association request for AP interface\n"); |
| goto done; |
| } |
| |
| wiphy_dbg(wiphy, "info: Trying to associate to %s and bssid %pM\n", |
| (char *) sme->ssid, sme->bssid); |
| |
| ret = mwifiex_cfg80211_assoc(priv, sme->ssid_len, sme->ssid, sme->bssid, |
| priv->bss_mode, sme->channel, sme, 0); |
| done: |
| if (!ret) { |
| cfg80211_connect_result(priv->netdev, priv->cfg_bssid, NULL, 0, |
| NULL, 0, WLAN_STATUS_SUCCESS, |
| GFP_KERNEL); |
| dev_dbg(priv->adapter->dev, |
| "info: associated to bssid %pM successfully\n", |
| priv->cfg_bssid); |
| } else { |
| dev_dbg(priv->adapter->dev, |
| "info: association to bssid %pM failed\n", |
| priv->cfg_bssid); |
| memset(priv->cfg_bssid, 0, ETH_ALEN); |
| |
| if (ret > 0) |
| cfg80211_connect_result(priv->netdev, priv->cfg_bssid, |
| NULL, 0, NULL, 0, ret, |
| GFP_KERNEL); |
| else |
| cfg80211_connect_result(priv->netdev, priv->cfg_bssid, |
| NULL, 0, NULL, 0, |
| WLAN_STATUS_UNSPECIFIED_FAILURE, |
| GFP_KERNEL); |
| } |
| |
| return 0; |
| } |
| |
| /* |
| * This function sets following parameters for ibss network. |
| * - channel |
| * - start band |
| * - 11n flag |
| * - secondary channel offset |
| */ |
| static int mwifiex_set_ibss_params(struct mwifiex_private *priv, |
| struct cfg80211_ibss_params *params) |
| { |
| struct wiphy *wiphy = priv->wdev->wiphy; |
| struct mwifiex_adapter *adapter = priv->adapter; |
| int index = 0, i; |
| u8 config_bands = 0; |
| |
| if (params->chandef.chan->band == IEEE80211_BAND_2GHZ) { |
| if (!params->basic_rates) { |
| config_bands = BAND_B | BAND_G; |
| } else { |
| for (i = 0; i < mwifiex_band_2ghz.n_bitrates; i++) { |
| /* |
| * Rates below 6 Mbps in the table are CCK |
| * rates; 802.11b and from 6 they are OFDM; |
| * 802.11G |
| */ |
| if (mwifiex_rates[i].bitrate == 60) { |
| index = 1 << i; |
| break; |
| } |
| } |
| |
| if (params->basic_rates < index) { |
| config_bands = BAND_B; |
| } else { |
| config_bands = BAND_G; |
| if (params->basic_rates % index) |
| config_bands |= BAND_B; |
| } |
| } |
| |
| if (cfg80211_get_chandef_type(¶ms->chandef) != |
| NL80211_CHAN_NO_HT) |
| config_bands |= BAND_G | BAND_GN; |
| } else { |
| if (cfg80211_get_chandef_type(¶ms->chandef) == |
| NL80211_CHAN_NO_HT) |
| config_bands = BAND_A; |
| else |
| config_bands = BAND_AN | BAND_A; |
| } |
| |
| if (!((config_bands | adapter->fw_bands) & ~adapter->fw_bands)) { |
| adapter->config_bands = config_bands; |
| adapter->adhoc_start_band = config_bands; |
| |
| if ((config_bands & BAND_GN) || (config_bands & BAND_AN)) |
| adapter->adhoc_11n_enabled = true; |
| else |
| adapter->adhoc_11n_enabled = false; |
| } |
| |
| adapter->sec_chan_offset = |
| mwifiex_chan_type_to_sec_chan_offset( |
| cfg80211_get_chandef_type(¶ms->chandef)); |
| priv->adhoc_channel = ieee80211_frequency_to_channel( |
| params->chandef.chan->center_freq); |
| |
| wiphy_dbg(wiphy, "info: set ibss band %d, chan %d, chan offset %d\n", |
| config_bands, priv->adhoc_channel, adapter->sec_chan_offset); |
| |
| return 0; |
| } |
| |
| /* |
| * CFG802.11 operation handler to join an IBSS. |
| * |
| * This function does not work in any mode other than Ad-Hoc, or if |
| * a join operation is already in progress. |
| */ |
| static int |
| mwifiex_cfg80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, |
| struct cfg80211_ibss_params *params) |
| { |
| struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); |
| int ret = 0; |
| |
| if (priv->bss_mode != NL80211_IFTYPE_ADHOC) { |
| wiphy_err(wiphy, "request to join ibss received " |
| "when station is not in ibss mode\n"); |
| goto done; |
| } |
| |
| wiphy_dbg(wiphy, "info: trying to join to %s and bssid %pM\n", |
| (char *) params->ssid, params->bssid); |
| |
| mwifiex_set_ibss_params(priv, params); |
| |
| ret = mwifiex_cfg80211_assoc(priv, params->ssid_len, params->ssid, |
| params->bssid, priv->bss_mode, |
| params->chandef.chan, NULL, |
| params->privacy); |
| done: |
| if (!ret) { |
| cfg80211_ibss_joined(priv->netdev, priv->cfg_bssid, GFP_KERNEL); |
| dev_dbg(priv->adapter->dev, |
| "info: joined/created adhoc network with bssid" |
| " %pM successfully\n", priv->cfg_bssid); |
| } else { |
| dev_dbg(priv->adapter->dev, |
| "info: failed creating/joining adhoc network\n"); |
| } |
| |
| return ret; |
| } |
| |
| /* |
| * CFG802.11 operation handler to leave an IBSS. |
| * |
| * This function does not work if a leave operation is |
| * already in progress. |
| */ |
| static int |
| mwifiex_cfg80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) |
| { |
| struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); |
| |
| wiphy_dbg(wiphy, "info: disconnecting from essid %pM\n", |
| priv->cfg_bssid); |
| if (mwifiex_deauthenticate(priv, NULL)) |
| return -EFAULT; |
| |
| memset(priv->cfg_bssid, 0, ETH_ALEN); |
| |
| return 0; |
| } |
| |
| /* |
| * CFG802.11 operation handler for scan request. |
| * |
| * This function issues a scan request to the firmware based upon |
| * the user specified scan configuration. On successfull completion, |
| * it also informs the results. |
| */ |
| static int |
| mwifiex_cfg80211_scan(struct wiphy *wiphy, |
| struct cfg80211_scan_request *request) |
| { |
| struct net_device *dev = request->wdev->netdev; |
| struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); |
| int i, offset, ret; |
| struct ieee80211_channel *chan; |
| struct ieee_types_header *ie; |
| |
| wiphy_dbg(wiphy, "info: received scan request on %s\n", dev->name); |
| |
| if ((request->flags & NL80211_SCAN_FLAG_LOW_PRIORITY) && |
| atomic_read(&priv->wmm.tx_pkts_queued) >= |
| MWIFIEX_MIN_TX_PENDING_TO_CANCEL_SCAN) { |
| dev_dbg(priv->adapter->dev, "scan rejected due to traffic\n"); |
| return -EBUSY; |
| } |
| |
| if (priv->user_scan_cfg) { |
| dev_err(priv->adapter->dev, "cmd: Scan already in process..\n"); |
| return -EBUSY; |
| } |
| |
| priv->user_scan_cfg = kzalloc(sizeof(struct mwifiex_user_scan_cfg), |
| GFP_KERNEL); |
| if (!priv->user_scan_cfg) { |
| dev_err(priv->adapter->dev, "failed to alloc scan_req\n"); |
| return -ENOMEM; |
| } |
| |
| priv->scan_request = request; |
| |
| priv->user_scan_cfg->num_ssids = request->n_ssids; |
| priv->user_scan_cfg->ssid_list = request->ssids; |
| |
| if (request->ie && request->ie_len) { |
| offset = 0; |
| for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) { |
| if (priv->vs_ie[i].mask != MWIFIEX_VSIE_MASK_CLEAR) |
| continue; |
| priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_SCAN; |
| ie = (struct ieee_types_header *)(request->ie + offset); |
| memcpy(&priv->vs_ie[i].ie, ie, sizeof(*ie) + ie->len); |
| offset += sizeof(*ie) + ie->len; |
| |
| if (offset >= request->ie_len) |
| break; |
| } |
| } |
| |
| for (i = 0; i < request->n_channels; i++) { |
| chan = request->channels[i]; |
| priv->user_scan_cfg->chan_list[i].chan_number = chan->hw_value; |
| priv->user_scan_cfg->chan_list[i].radio_type = chan->band; |
| |
| if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN) |
| priv->user_scan_cfg->chan_list[i].scan_type = |
| MWIFIEX_SCAN_TYPE_PASSIVE; |
| else |
| priv->user_scan_cfg->chan_list[i].scan_type = |
| MWIFIEX_SCAN_TYPE_ACTIVE; |
| |
| priv->user_scan_cfg->chan_list[i].scan_time = 0; |
| } |
| |
| ret = mwifiex_scan_networks(priv, priv->user_scan_cfg); |
| if (ret) { |
| dev_err(priv->adapter->dev, "scan failed: %d\n", ret); |
| priv->scan_request = NULL; |
| kfree(priv->user_scan_cfg); |
| priv->user_scan_cfg = NULL; |
| return ret; |
| } |
| |
| if (request->ie && request->ie_len) { |
| for (i = 0; i < MWIFIEX_MAX_VSIE_NUM; i++) { |
| if (priv->vs_ie[i].mask == MWIFIEX_VSIE_MASK_SCAN) { |
| priv->vs_ie[i].mask = MWIFIEX_VSIE_MASK_CLEAR; |
| memset(&priv->vs_ie[i].ie, 0, |
| MWIFIEX_MAX_VSIE_LEN); |
| } |
| } |
| } |
| return 0; |
| } |
| |
| /* |
| * This function sets up the CFG802.11 specific HT capability fields |
| * with default values. |
| * |
| * The following default values are set - |
| * - HT Supported = True |
| * - Maximum AMPDU length factor = IEEE80211_HT_MAX_AMPDU_64K |
| * - Minimum AMPDU spacing = IEEE80211_HT_MPDU_DENSITY_NONE |
| * - HT Capabilities supported by firmware |
| * - MCS information, Rx mask = 0xff |
| * - MCD information, Tx parameters = IEEE80211_HT_MCS_TX_DEFINED (0x01) |
| */ |
| static void |
| mwifiex_setup_ht_caps(struct ieee80211_sta_ht_cap *ht_info, |
| struct mwifiex_private *priv) |
| { |
| int rx_mcs_supp; |
| struct ieee80211_mcs_info mcs_set; |
| u8 *mcs = (u8 *)&mcs_set; |
| struct mwifiex_adapter *adapter = priv->adapter; |
| |
| ht_info->ht_supported = true; |
| ht_info->ampdu_factor = IEEE80211_HT_MAX_AMPDU_64K; |
| ht_info->ampdu_density = IEEE80211_HT_MPDU_DENSITY_NONE; |
| |
| memset(&ht_info->mcs, 0, sizeof(ht_info->mcs)); |
| |
| /* Fill HT capability information */ |
| if (ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap)) |
| ht_info->cap |= IEEE80211_HT_CAP_SUP_WIDTH_20_40; |
| else |
| ht_info->cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; |
| |
| if (ISSUPP_SHORTGI20(adapter->hw_dot_11n_dev_cap)) |
| ht_info->cap |= IEEE80211_HT_CAP_SGI_20; |
| else |
| ht_info->cap &= ~IEEE80211_HT_CAP_SGI_20; |
| |
| if (ISSUPP_SHORTGI40(adapter->hw_dot_11n_dev_cap)) |
| ht_info->cap |= IEEE80211_HT_CAP_SGI_40; |
| else |
| ht_info->cap &= ~IEEE80211_HT_CAP_SGI_40; |
| |
| if (ISSUPP_RXSTBC(adapter->hw_dot_11n_dev_cap)) |
| ht_info->cap |= 1 << IEEE80211_HT_CAP_RX_STBC_SHIFT; |
| else |
| ht_info->cap &= ~(3 << IEEE80211_HT_CAP_RX_STBC_SHIFT); |
| |
| if (ISSUPP_TXSTBC(adapter->hw_dot_11n_dev_cap)) |
| ht_info->cap |= IEEE80211_HT_CAP_TX_STBC; |
| else |
| ht_info->cap &= ~IEEE80211_HT_CAP_TX_STBC; |
| |
| if (ISSUPP_GREENFIELD(adapter->hw_dot_11n_dev_cap)) |
| ht_info->cap |= IEEE80211_HT_CAP_GRN_FLD; |
| else |
| ht_info->cap &= ~IEEE80211_HT_CAP_GRN_FLD; |
| |
| if (ISENABLED_40MHZ_INTOLERANT(adapter->hw_dot_11n_dev_cap)) |
| ht_info->cap |= IEEE80211_HT_CAP_40MHZ_INTOLERANT; |
| else |
| ht_info->cap &= ~IEEE80211_HT_CAP_40MHZ_INTOLERANT; |
| |
| if (ISSUPP_RXLDPC(adapter->hw_dot_11n_dev_cap)) |
| ht_info->cap |= IEEE80211_HT_CAP_LDPC_CODING; |
| else |
| ht_info->cap &= ~IEEE80211_HT_CAP_LDPC_CODING; |
| |
| ht_info->cap &= ~IEEE80211_HT_CAP_MAX_AMSDU; |
| ht_info->cap |= IEEE80211_HT_CAP_SM_PS; |
| |
| rx_mcs_supp = GET_RXMCSSUPP(adapter->hw_dev_mcs_support); |
| /* Set MCS for 1x1 */ |
| memset(mcs, 0xff, rx_mcs_supp); |
| /* Clear all the other values */ |
| memset(&mcs[rx_mcs_supp], 0, |
| sizeof(struct ieee80211_mcs_info) - rx_mcs_supp); |
| if (priv->bss_mode == NL80211_IFTYPE_STATION || |
| ISSUPP_CHANWIDTH40(adapter->hw_dot_11n_dev_cap)) |
| /* Set MCS32 for infra mode or ad-hoc mode with 40MHz support */ |
| SETHT_MCS32(mcs_set.rx_mask); |
| |
| memcpy((u8 *) &ht_info->mcs, mcs, sizeof(struct ieee80211_mcs_info)); |
| |
| ht_info->mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED; |
| } |
| |
| /* |
| * create a new virtual interface with the given name |
| */ |
| struct wireless_dev *mwifiex_add_virtual_intf(struct wiphy *wiphy, |
| const char *name, |
| enum nl80211_iftype type, |
| u32 *flags, |
| struct vif_params *params) |
| { |
| struct mwifiex_adapter *adapter = mwifiex_cfg80211_get_adapter(wiphy); |
| struct mwifiex_private *priv; |
| struct net_device *dev; |
| void *mdev_priv; |
| struct wireless_dev *wdev; |
| |
| if (!adapter) |
| return ERR_PTR(-EFAULT); |
| |
| switch (type) { |
| case NL80211_IFTYPE_UNSPECIFIED: |
| case NL80211_IFTYPE_STATION: |
| case NL80211_IFTYPE_ADHOC: |
| priv = adapter->priv[MWIFIEX_BSS_TYPE_STA]; |
| if (priv->bss_mode) { |
| wiphy_err(wiphy, |
| "cannot create multiple sta/adhoc ifaces\n"); |
| return ERR_PTR(-EINVAL); |
| } |
| |
| wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL); |
| if (!wdev) |
| return ERR_PTR(-ENOMEM); |
| |
| wdev->wiphy = wiphy; |
| priv->wdev = wdev; |
| wdev->iftype = NL80211_IFTYPE_STATION; |
| |
| if (type == NL80211_IFTYPE_UNSPECIFIED) |
| priv->bss_mode = NL80211_IFTYPE_STATION; |
| else |
| priv->bss_mode = type; |
| |
| priv->bss_type = MWIFIEX_BSS_TYPE_STA; |
| priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II; |
| priv->bss_priority = 0; |
| priv->bss_role = MWIFIEX_BSS_ROLE_STA; |
| priv->bss_num = 0; |
| |
| break; |
| case NL80211_IFTYPE_AP: |
| priv = adapter->priv[MWIFIEX_BSS_TYPE_UAP]; |
| |
| if (priv->bss_mode) { |
| wiphy_err(wiphy, "Can't create multiple AP interfaces"); |
| return ERR_PTR(-EINVAL); |
| } |
| |
| wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL); |
| if (!wdev) |
| return ERR_PTR(-ENOMEM); |
| |
| priv->wdev = wdev; |
| wdev->wiphy = wiphy; |
| wdev->iftype = NL80211_IFTYPE_AP; |
| |
| priv->bss_type = MWIFIEX_BSS_TYPE_UAP; |
| priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II; |
| priv->bss_priority = 0; |
| priv->bss_role = MWIFIEX_BSS_ROLE_UAP; |
| priv->bss_started = 0; |
| priv->bss_num = 0; |
| priv->bss_mode = type; |
| |
| break; |
| case NL80211_IFTYPE_P2P_CLIENT: |
| priv = adapter->priv[MWIFIEX_BSS_TYPE_P2P]; |
| |
| if (priv->bss_mode) { |
| wiphy_err(wiphy, "Can't create multiple P2P ifaces"); |
| return ERR_PTR(-EINVAL); |
| } |
| |
| wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL); |
| if (!wdev) |
| return ERR_PTR(-ENOMEM); |
| |
| priv->wdev = wdev; |
| wdev->wiphy = wiphy; |
| |
| /* At start-up, wpa_supplicant tries to change the interface |
| * to NL80211_IFTYPE_STATION if it is not managed mode. |
| * So, we initialize it to STA mode. |
| */ |
| wdev->iftype = NL80211_IFTYPE_STATION; |
| priv->bss_mode = NL80211_IFTYPE_STATION; |
| |
| /* Setting bss_type to P2P tells firmware that this interface |
| * is receiving P2P peers found during find phase and doing |
| * action frame handshake. |
| */ |
| priv->bss_type = MWIFIEX_BSS_TYPE_P2P; |
| |
| priv->frame_type = MWIFIEX_DATA_FRAME_TYPE_ETH_II; |
| priv->bss_priority = MWIFIEX_BSS_ROLE_STA; |
| priv->bss_role = MWIFIEX_BSS_ROLE_STA; |
| priv->bss_started = 0; |
| priv->bss_num = 0; |
| |
| break; |
| default: |
| wiphy_err(wiphy, "type not supported\n"); |
| return ERR_PTR(-EINVAL); |
| } |
| |
| dev = alloc_netdev_mqs(sizeof(struct mwifiex_private *), name, |
| ether_setup, IEEE80211_NUM_ACS, 1); |
| if (!dev) { |
| wiphy_err(wiphy, "no memory available for netdevice\n"); |
| priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED; |
| return ERR_PTR(-ENOMEM); |
| } |
| |
| mwifiex_init_priv_params(priv, dev); |
| priv->netdev = dev; |
| |
| mwifiex_setup_ht_caps(&wiphy->bands[IEEE80211_BAND_2GHZ]->ht_cap, priv); |
| |
| if (adapter->config_bands & BAND_A) |
| mwifiex_setup_ht_caps( |
| &wiphy->bands[IEEE80211_BAND_5GHZ]->ht_cap, priv); |
| |
| dev_net_set(dev, wiphy_net(wiphy)); |
| dev->ieee80211_ptr = priv->wdev; |
| dev->ieee80211_ptr->iftype = priv->bss_mode; |
| memcpy(dev->dev_addr, wiphy->perm_addr, ETH_ALEN); |
| SET_NETDEV_DEV(dev, wiphy_dev(wiphy)); |
| |
| dev->flags |= IFF_BROADCAST | IFF_MULTICAST; |
| dev->watchdog_timeo = MWIFIEX_DEFAULT_WATCHDOG_TIMEOUT; |
| dev->hard_header_len += MWIFIEX_MIN_DATA_HEADER_LEN; |
| |
| mdev_priv = netdev_priv(dev); |
| *((unsigned long *) mdev_priv) = (unsigned long) priv; |
| |
| SET_NETDEV_DEV(dev, adapter->dev); |
| |
| /* Register network device */ |
| if (register_netdevice(dev)) { |
| wiphy_err(wiphy, "cannot register virtual network device\n"); |
| free_netdev(dev); |
| priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED; |
| return ERR_PTR(-EFAULT); |
| } |
| |
| sema_init(&priv->async_sem, 1); |
| |
| dev_dbg(adapter->dev, "info: %s: Marvell 802.11 Adapter\n", dev->name); |
| |
| #ifdef CONFIG_DEBUG_FS |
| mwifiex_dev_debugfs_init(priv); |
| #endif |
| return wdev; |
| } |
| EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf); |
| |
| /* |
| * del_virtual_intf: remove the virtual interface determined by dev |
| */ |
| int mwifiex_del_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev) |
| { |
| struct mwifiex_private *priv = mwifiex_netdev_get_priv(wdev->netdev); |
| |
| #ifdef CONFIG_DEBUG_FS |
| mwifiex_dev_debugfs_remove(priv); |
| #endif |
| |
| mwifiex_stop_net_dev_queue(priv->netdev, priv->adapter); |
| |
| if (netif_carrier_ok(priv->netdev)) |
| netif_carrier_off(priv->netdev); |
| |
| if (wdev->netdev->reg_state == NETREG_REGISTERED) |
| unregister_netdevice(wdev->netdev); |
| |
| if (wdev->netdev->reg_state == NETREG_UNREGISTERED) |
| free_netdev(wdev->netdev); |
| |
| /* Clear the priv in adapter */ |
| priv->netdev = NULL; |
| |
| priv->media_connected = false; |
| |
| priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED; |
| |
| return 0; |
| } |
| EXPORT_SYMBOL_GPL(mwifiex_del_virtual_intf); |
| |
| /* station cfg80211 operations */ |
| static struct cfg80211_ops mwifiex_cfg80211_ops = { |
| .add_virtual_intf = mwifiex_add_virtual_intf, |
| .del_virtual_intf = mwifiex_del_virtual_intf, |
| .change_virtual_intf = mwifiex_cfg80211_change_virtual_intf, |
| .scan = mwifiex_cfg80211_scan, |
| .connect = mwifiex_cfg80211_connect, |
| .disconnect = mwifiex_cfg80211_disconnect, |
| .get_station = mwifiex_cfg80211_get_station, |
| .dump_station = mwifiex_cfg80211_dump_station, |
| .set_wiphy_params = mwifiex_cfg80211_set_wiphy_params, |
| .join_ibss = mwifiex_cfg80211_join_ibss, |
| .leave_ibss = mwifiex_cfg80211_leave_ibss, |
| .add_key = mwifiex_cfg80211_add_key, |
| .del_key = mwifiex_cfg80211_del_key, |
| .mgmt_tx = mwifiex_cfg80211_mgmt_tx, |
| .mgmt_frame_register = mwifiex_cfg80211_mgmt_frame_register, |
| .remain_on_channel = mwifiex_cfg80211_remain_on_channel, |
| .cancel_remain_on_channel = mwifiex_cfg80211_cancel_remain_on_channel, |
| .set_default_key = mwifiex_cfg80211_set_default_key, |
| .set_power_mgmt = mwifiex_cfg80211_set_power_mgmt, |
| .set_tx_power = mwifiex_cfg80211_set_tx_power, |
| .set_bitrate_mask = mwifiex_cfg80211_set_bitrate_mask, |
| .start_ap = mwifiex_cfg80211_start_ap, |
| .stop_ap = mwifiex_cfg80211_stop_ap, |
| .change_beacon = mwifiex_cfg80211_change_beacon, |
| .set_cqm_rssi_config = mwifiex_cfg80211_set_cqm_rssi_config, |
| .set_antenna = mwifiex_cfg80211_set_antenna, |
| }; |
| |
| /* |
| * This function registers the device with CFG802.11 subsystem. |
| * |
| * The function creates the wireless device/wiphy, populates it with |
| * default parameters and handler function pointers, and finally |
| * registers the device. |
| */ |
| |
| int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter) |
| { |
| int ret; |
| void *wdev_priv; |
| struct wiphy *wiphy; |
| struct mwifiex_private *priv = adapter->priv[MWIFIEX_BSS_TYPE_STA]; |
| u8 *country_code; |
| |
| /* create a new wiphy for use with cfg80211 */ |
| wiphy = wiphy_new(&mwifiex_cfg80211_ops, |
| sizeof(struct mwifiex_adapter *)); |
| if (!wiphy) { |
| dev_err(adapter->dev, "%s: creating new wiphy\n", __func__); |
| return -ENOMEM; |
| } |
| wiphy->max_scan_ssids = MWIFIEX_MAX_SSID_LIST_LENGTH; |
| wiphy->max_scan_ie_len = MWIFIEX_MAX_VSIE_LEN; |
| wiphy->mgmt_stypes = mwifiex_mgmt_stypes; |
| wiphy->max_remain_on_channel_duration = 5000; |
| wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | |
| BIT(NL80211_IFTYPE_ADHOC) | |
| BIT(NL80211_IFTYPE_P2P_CLIENT) | |
| BIT(NL80211_IFTYPE_P2P_GO) | |
| BIT(NL80211_IFTYPE_AP); |
| |
| wiphy->bands[IEEE80211_BAND_2GHZ] = &mwifiex_band_2ghz; |
| if (adapter->config_bands & BAND_A) |
| wiphy->bands[IEEE80211_BAND_5GHZ] = &mwifiex_band_5ghz; |
| else |
| wiphy->bands[IEEE80211_BAND_5GHZ] = NULL; |
| |
| wiphy->iface_combinations = &mwifiex_iface_comb_ap_sta; |
| wiphy->n_iface_combinations = 1; |
| |
| /* Initialize cipher suits */ |
| wiphy->cipher_suites = mwifiex_cipher_suites; |
| wiphy->n_cipher_suites = ARRAY_SIZE(mwifiex_cipher_suites); |
| |
| memcpy(wiphy->perm_addr, priv->curr_addr, ETH_ALEN); |
| wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; |
| wiphy->flags |= WIPHY_FLAG_HAVE_AP_SME | |
| WIPHY_FLAG_AP_PROBE_RESP_OFFLOAD | |
| WIPHY_FLAG_AP_UAPSD | |
| WIPHY_FLAG_CUSTOM_REGULATORY | |
| WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL; |
| |
| wiphy_apply_custom_regulatory(wiphy, &mwifiex_world_regdom_custom); |
| |
| wiphy->probe_resp_offload = NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS | |
| NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2 | |
| NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P; |
| |
| wiphy->available_antennas_tx = BIT(adapter->number_of_antenna) - 1; |
| wiphy->available_antennas_rx = BIT(adapter->number_of_antenna) - 1; |
| |
| wiphy->features |= NL80211_FEATURE_HT_IBSS | |
| NL80211_FEATURE_INACTIVITY_TIMER | |
| NL80211_FEATURE_LOW_PRIORITY_SCAN; |
| |
| /* Reserve space for mwifiex specific private data for BSS */ |
| wiphy->bss_priv_size = sizeof(struct mwifiex_bss_priv); |
| |
| wiphy->reg_notifier = mwifiex_reg_notifier; |
| |
| /* Set struct mwifiex_adapter pointer in wiphy_priv */ |
| wdev_priv = wiphy_priv(wiphy); |
| *(unsigned long *)wdev_priv = (unsigned long)adapter; |
| |
| set_wiphy_dev(wiphy, priv->adapter->dev); |
| |
| ret = wiphy_register(wiphy); |
| if (ret < 0) { |
| dev_err(adapter->dev, |
| "%s: wiphy_register failed: %d\n", __func__, ret); |
| wiphy_free(wiphy); |
| return ret; |
| } |
| country_code = mwifiex_11d_code_2_region(priv->adapter->region_code); |
| if (country_code) |
| dev_info(adapter->dev, |
| "ignoring F/W country code %2.2s\n", country_code); |
| |
| adapter->wiphy = wiphy; |
| return ret; |
| } |