| /* |
| * Copyright (c) 2004-2011 Atheros Communications Inc. |
| * |
| * Permission to use, copy, modify, and/or distribute this software for any |
| * purpose with or without fee is hereby granted, provided that the above |
| * copyright notice and this permission notice appear in all copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| */ |
| |
| #include "core.h" |
| #include "cfg80211.h" |
| #include "debug.h" |
| |
| #define RATETAB_ENT(_rate, _rateid, _flags) { \ |
| .bitrate = (_rate), \ |
| .flags = (_flags), \ |
| .hw_value = (_rateid), \ |
| } |
| |
| #define CHAN2G(_channel, _freq, _flags) { \ |
| .band = IEEE80211_BAND_2GHZ, \ |
| .hw_value = (_channel), \ |
| .center_freq = (_freq), \ |
| .flags = (_flags), \ |
| .max_antenna_gain = 0, \ |
| .max_power = 30, \ |
| } |
| |
| #define CHAN5G(_channel, _flags) { \ |
| .band = IEEE80211_BAND_5GHZ, \ |
| .hw_value = (_channel), \ |
| .center_freq = 5000 + (5 * (_channel)), \ |
| .flags = (_flags), \ |
| .max_antenna_gain = 0, \ |
| .max_power = 30, \ |
| } |
| |
| static struct ieee80211_rate ath6kl_rates[] = { |
| RATETAB_ENT(10, 0x1, 0), |
| RATETAB_ENT(20, 0x2, 0), |
| RATETAB_ENT(55, 0x4, 0), |
| RATETAB_ENT(110, 0x8, 0), |
| RATETAB_ENT(60, 0x10, 0), |
| RATETAB_ENT(90, 0x20, 0), |
| RATETAB_ENT(120, 0x40, 0), |
| RATETAB_ENT(180, 0x80, 0), |
| RATETAB_ENT(240, 0x100, 0), |
| RATETAB_ENT(360, 0x200, 0), |
| RATETAB_ENT(480, 0x400, 0), |
| RATETAB_ENT(540, 0x800, 0), |
| }; |
| |
| #define ath6kl_a_rates (ath6kl_rates + 4) |
| #define ath6kl_a_rates_size 8 |
| #define ath6kl_g_rates (ath6kl_rates + 0) |
| #define ath6kl_g_rates_size 12 |
| |
| static struct ieee80211_channel ath6kl_2ghz_channels[] = { |
| CHAN2G(1, 2412, 0), |
| CHAN2G(2, 2417, 0), |
| CHAN2G(3, 2422, 0), |
| CHAN2G(4, 2427, 0), |
| CHAN2G(5, 2432, 0), |
| CHAN2G(6, 2437, 0), |
| CHAN2G(7, 2442, 0), |
| CHAN2G(8, 2447, 0), |
| CHAN2G(9, 2452, 0), |
| CHAN2G(10, 2457, 0), |
| CHAN2G(11, 2462, 0), |
| CHAN2G(12, 2467, 0), |
| CHAN2G(13, 2472, 0), |
| CHAN2G(14, 2484, 0), |
| }; |
| |
| static struct ieee80211_channel ath6kl_5ghz_a_channels[] = { |
| CHAN5G(34, 0), CHAN5G(36, 0), |
| CHAN5G(38, 0), CHAN5G(40, 0), |
| CHAN5G(42, 0), CHAN5G(44, 0), |
| CHAN5G(46, 0), CHAN5G(48, 0), |
| CHAN5G(52, 0), CHAN5G(56, 0), |
| CHAN5G(60, 0), CHAN5G(64, 0), |
| CHAN5G(100, 0), CHAN5G(104, 0), |
| CHAN5G(108, 0), CHAN5G(112, 0), |
| CHAN5G(116, 0), CHAN5G(120, 0), |
| CHAN5G(124, 0), CHAN5G(128, 0), |
| CHAN5G(132, 0), CHAN5G(136, 0), |
| CHAN5G(140, 0), CHAN5G(149, 0), |
| CHAN5G(153, 0), CHAN5G(157, 0), |
| CHAN5G(161, 0), CHAN5G(165, 0), |
| CHAN5G(184, 0), CHAN5G(188, 0), |
| CHAN5G(192, 0), CHAN5G(196, 0), |
| CHAN5G(200, 0), CHAN5G(204, 0), |
| CHAN5G(208, 0), CHAN5G(212, 0), |
| CHAN5G(216, 0), |
| }; |
| |
| static struct ieee80211_supported_band ath6kl_band_2ghz = { |
| .n_channels = ARRAY_SIZE(ath6kl_2ghz_channels), |
| .channels = ath6kl_2ghz_channels, |
| .n_bitrates = ath6kl_g_rates_size, |
| .bitrates = ath6kl_g_rates, |
| }; |
| |
| static struct ieee80211_supported_band ath6kl_band_5ghz = { |
| .n_channels = ARRAY_SIZE(ath6kl_5ghz_a_channels), |
| .channels = ath6kl_5ghz_a_channels, |
| .n_bitrates = ath6kl_a_rates_size, |
| .bitrates = ath6kl_a_rates, |
| }; |
| |
| static int ath6kl_set_wpa_version(struct ath6kl *ar, |
| enum nl80211_wpa_versions wpa_version) |
| { |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: %u\n", __func__, wpa_version); |
| |
| if (!wpa_version) { |
| ar->auth_mode = NONE_AUTH; |
| } else if (wpa_version & NL80211_WPA_VERSION_2) { |
| ar->auth_mode = WPA2_AUTH; |
| } else if (wpa_version & NL80211_WPA_VERSION_1) { |
| ar->auth_mode = WPA_AUTH; |
| } else { |
| ath6kl_err("%s: %u not supported\n", __func__, wpa_version); |
| return -ENOTSUPP; |
| } |
| |
| return 0; |
| } |
| |
| static int ath6kl_set_auth_type(struct ath6kl *ar, |
| enum nl80211_auth_type auth_type) |
| { |
| |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: 0x%x\n", __func__, auth_type); |
| |
| switch (auth_type) { |
| case NL80211_AUTHTYPE_OPEN_SYSTEM: |
| ar->dot11_auth_mode = OPEN_AUTH; |
| break; |
| case NL80211_AUTHTYPE_SHARED_KEY: |
| ar->dot11_auth_mode = SHARED_AUTH; |
| break; |
| case NL80211_AUTHTYPE_NETWORK_EAP: |
| ar->dot11_auth_mode = LEAP_AUTH; |
| break; |
| |
| case NL80211_AUTHTYPE_AUTOMATIC: |
| ar->dot11_auth_mode = OPEN_AUTH; |
| ar->auto_auth_stage = AUTH_OPEN_IN_PROGRESS; |
| break; |
| |
| default: |
| ath6kl_err("%s: 0x%x not spported\n", __func__, auth_type); |
| return -ENOTSUPP; |
| } |
| |
| return 0; |
| } |
| |
| static int ath6kl_set_cipher(struct ath6kl *ar, u32 cipher, bool ucast) |
| { |
| u8 *ar_cipher = ucast ? &ar->prwise_crypto : &ar->grp_crypto; |
| u8 *ar_cipher_len = ucast ? &ar->prwise_crypto_len : &ar->grp_crpto_len; |
| |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: cipher 0x%x, ucast %u\n", |
| __func__, cipher, ucast); |
| |
| switch (cipher) { |
| case 0: |
| /* our own hack to use value 0 as no crypto used */ |
| *ar_cipher = NONE_CRYPT; |
| *ar_cipher_len = 0; |
| break; |
| case WLAN_CIPHER_SUITE_WEP40: |
| *ar_cipher = WEP_CRYPT; |
| *ar_cipher_len = 5; |
| break; |
| case WLAN_CIPHER_SUITE_WEP104: |
| *ar_cipher = WEP_CRYPT; |
| *ar_cipher_len = 13; |
| break; |
| case WLAN_CIPHER_SUITE_TKIP: |
| *ar_cipher = TKIP_CRYPT; |
| *ar_cipher_len = 0; |
| break; |
| case WLAN_CIPHER_SUITE_CCMP: |
| *ar_cipher = AES_CRYPT; |
| *ar_cipher_len = 0; |
| break; |
| default: |
| ath6kl_err("cipher 0x%x not supported\n", cipher); |
| return -ENOTSUPP; |
| } |
| |
| return 0; |
| } |
| |
| static void ath6kl_set_key_mgmt(struct ath6kl *ar, u32 key_mgmt) |
| { |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: 0x%x\n", __func__, key_mgmt); |
| |
| if (key_mgmt == WLAN_AKM_SUITE_PSK) { |
| if (ar->auth_mode == WPA_AUTH) |
| ar->auth_mode = WPA_PSK_AUTH; |
| else if (ar->auth_mode == WPA2_AUTH) |
| ar->auth_mode = WPA2_PSK_AUTH; |
| } else if (key_mgmt != WLAN_AKM_SUITE_8021X) { |
| ar->auth_mode = NONE_AUTH; |
| } |
| } |
| |
| static bool ath6kl_cfg80211_ready(struct ath6kl *ar) |
| { |
| if (!test_bit(WMI_READY, &ar->flag)) { |
| ath6kl_err("wmi is not ready\n"); |
| return false; |
| } |
| |
| if (ar->wlan_state == WLAN_DISABLED) { |
| ath6kl_err("wlan disabled\n"); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| static int ath6kl_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev, |
| struct cfg80211_connect_params *sme) |
| { |
| struct ath6kl *ar = ath6kl_priv(dev); |
| int status; |
| |
| ar->sme_state = SME_CONNECTING; |
| |
| if (!ath6kl_cfg80211_ready(ar)) |
| return -EIO; |
| |
| if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) { |
| ath6kl_err("destroy in progress\n"); |
| return -EBUSY; |
| } |
| |
| if (test_bit(SKIP_SCAN, &ar->flag) && |
| ((sme->channel && sme->channel->center_freq == 0) || |
| (sme->bssid && is_zero_ether_addr(sme->bssid)))) { |
| ath6kl_err("SkipScan: channel or bssid invalid\n"); |
| return -EINVAL; |
| } |
| |
| if (down_interruptible(&ar->sem)) { |
| ath6kl_err("busy, couldn't get access\n"); |
| return -ERESTARTSYS; |
| } |
| |
| if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) { |
| ath6kl_err("busy, destroy in progress\n"); |
| up(&ar->sem); |
| return -EBUSY; |
| } |
| |
| if (ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)]) { |
| /* |
| * sleep until the command queue drains |
| */ |
| wait_event_interruptible_timeout(ar->event_wq, |
| ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)] == 0, |
| WMI_TIMEOUT); |
| if (signal_pending(current)) { |
| ath6kl_err("cmd queue drain timeout\n"); |
| up(&ar->sem); |
| return -EINTR; |
| } |
| } |
| |
| if (test_bit(CONNECTED, &ar->flag) && |
| ar->ssid_len == sme->ssid_len && |
| !memcmp(ar->ssid, sme->ssid, ar->ssid_len)) { |
| ar->reconnect_flag = true; |
| status = ath6kl_wmi_reconnect_cmd(ar->wmi, ar->req_bssid, |
| ar->ch_hint); |
| |
| up(&ar->sem); |
| if (status) { |
| ath6kl_err("wmi_reconnect_cmd failed\n"); |
| return -EIO; |
| } |
| return 0; |
| } else if (ar->ssid_len == sme->ssid_len && |
| !memcmp(ar->ssid, sme->ssid, ar->ssid_len)) { |
| ath6kl_disconnect(ar); |
| } |
| |
| memset(ar->ssid, 0, sizeof(ar->ssid)); |
| ar->ssid_len = sme->ssid_len; |
| memcpy(ar->ssid, sme->ssid, sme->ssid_len); |
| |
| if (sme->channel) |
| ar->ch_hint = sme->channel->center_freq; |
| |
| memset(ar->req_bssid, 0, sizeof(ar->req_bssid)); |
| if (sme->bssid && !is_broadcast_ether_addr(sme->bssid)) |
| memcpy(ar->req_bssid, sme->bssid, sizeof(ar->req_bssid)); |
| |
| ath6kl_set_wpa_version(ar, sme->crypto.wpa_versions); |
| |
| status = ath6kl_set_auth_type(ar, sme->auth_type); |
| if (status) { |
| up(&ar->sem); |
| return status; |
| } |
| |
| if (sme->crypto.n_ciphers_pairwise) |
| ath6kl_set_cipher(ar, sme->crypto.ciphers_pairwise[0], true); |
| else |
| ath6kl_set_cipher(ar, 0, true); |
| |
| ath6kl_set_cipher(ar, sme->crypto.cipher_group, false); |
| |
| if (sme->crypto.n_akm_suites) |
| ath6kl_set_key_mgmt(ar, sme->crypto.akm_suites[0]); |
| |
| if ((sme->key_len) && |
| (ar->auth_mode == NONE_AUTH) && (ar->prwise_crypto == WEP_CRYPT)) { |
| struct ath6kl_key *key = NULL; |
| |
| if (sme->key_idx < WMI_MIN_KEY_INDEX || |
| sme->key_idx > WMI_MAX_KEY_INDEX) { |
| ath6kl_err("key index %d out of bounds\n", |
| sme->key_idx); |
| up(&ar->sem); |
| return -ENOENT; |
| } |
| |
| key = &ar->keys[sme->key_idx]; |
| key->key_len = sme->key_len; |
| memcpy(key->key, sme->key, key->key_len); |
| key->cipher = ar->prwise_crypto; |
| ar->def_txkey_index = sme->key_idx; |
| |
| ath6kl_wmi_addkey_cmd(ar->wmi, sme->key_idx, |
| ar->prwise_crypto, |
| GROUP_USAGE | TX_USAGE, |
| key->key_len, |
| NULL, |
| key->key, KEY_OP_INIT_VAL, NULL, |
| NO_SYNC_WMIFLAG); |
| } |
| |
| if (!ar->usr_bss_filter) { |
| if (ath6kl_wmi_bssfilter_cmd(ar->wmi, ALL_BSS_FILTER, 0) != 0) { |
| ath6kl_err("couldn't set bss filtering\n"); |
| up(&ar->sem); |
| return -EIO; |
| } |
| } |
| |
| ar->nw_type = ar->next_mode; |
| |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, |
| "%s: connect called with authmode %d dot11 auth %d" |
| " PW crypto %d PW crypto len %d GRP crypto %d" |
| " GRP crypto len %d channel hint %u\n", |
| __func__, |
| ar->auth_mode, ar->dot11_auth_mode, ar->prwise_crypto, |
| ar->prwise_crypto_len, ar->grp_crypto, |
| ar->grp_crpto_len, ar->ch_hint); |
| |
| ar->reconnect_flag = 0; |
| status = ath6kl_wmi_connect_cmd(ar->wmi, ar->nw_type, |
| ar->dot11_auth_mode, ar->auth_mode, |
| ar->prwise_crypto, |
| ar->prwise_crypto_len, |
| ar->grp_crypto, ar->grp_crpto_len, |
| ar->ssid_len, ar->ssid, |
| ar->req_bssid, ar->ch_hint, |
| ar->connect_ctrl_flags); |
| |
| up(&ar->sem); |
| |
| if (status == -EINVAL) { |
| memset(ar->ssid, 0, sizeof(ar->ssid)); |
| ar->ssid_len = 0; |
| ath6kl_err("invalid request\n"); |
| return -ENOENT; |
| } else if (status) { |
| ath6kl_err("ath6kl_wmi_connect_cmd failed\n"); |
| return -EIO; |
| } |
| |
| if ((!(ar->connect_ctrl_flags & CONNECT_DO_WPA_OFFLOAD)) && |
| ((ar->auth_mode == WPA_PSK_AUTH) |
| || (ar->auth_mode == WPA2_PSK_AUTH))) { |
| mod_timer(&ar->disconnect_timer, |
| jiffies + msecs_to_jiffies(DISCON_TIMER_INTVAL)); |
| } |
| |
| ar->connect_ctrl_flags &= ~CONNECT_DO_WPA_OFFLOAD; |
| set_bit(CONNECT_PEND, &ar->flag); |
| |
| return 0; |
| } |
| |
| void ath6kl_cfg80211_connect_event(struct ath6kl *ar, u16 channel, |
| u8 *bssid, u16 listen_intvl, |
| u16 beacon_intvl, |
| enum network_type nw_type, |
| u8 beacon_ie_len, u8 assoc_req_len, |
| u8 assoc_resp_len, u8 *assoc_info) |
| { |
| u16 size = 0; |
| u16 capability = 0; |
| struct cfg80211_bss *bss = NULL; |
| struct ieee80211_mgmt *mgmt = NULL; |
| struct ieee80211_channel *ibss_ch = NULL; |
| s32 signal = 50 * 100; |
| u8 ie_buf_len = 0; |
| unsigned char ie_buf[256]; |
| unsigned char *ptr_ie_buf = ie_buf; |
| unsigned char *ieeemgmtbuf = NULL; |
| u8 source_mac[ETH_ALEN]; |
| u16 capa_mask; |
| u16 capa_val; |
| |
| /* capinfo + listen interval */ |
| u8 assoc_req_ie_offset = sizeof(u16) + sizeof(u16); |
| |
| /* capinfo + status code + associd */ |
| u8 assoc_resp_ie_offset = sizeof(u16) + sizeof(u16) + sizeof(u16); |
| |
| u8 *assoc_req_ie = assoc_info + beacon_ie_len + assoc_req_ie_offset; |
| u8 *assoc_resp_ie = assoc_info + beacon_ie_len + assoc_req_len + |
| assoc_resp_ie_offset; |
| |
| assoc_req_len -= assoc_req_ie_offset; |
| assoc_resp_len -= assoc_resp_ie_offset; |
| |
| ar->auto_auth_stage = AUTH_IDLE; |
| |
| if (nw_type & ADHOC_NETWORK) { |
| if (ar->wdev->iftype != NL80211_IFTYPE_ADHOC) { |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, |
| "%s: ath6k not in ibss mode\n", __func__); |
| return; |
| } |
| } |
| |
| if (nw_type & INFRA_NETWORK) { |
| if (ar->wdev->iftype != NL80211_IFTYPE_STATION) { |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, |
| "%s: ath6k not in station mode\n", __func__); |
| return; |
| } |
| } |
| |
| if (nw_type & ADHOC_NETWORK) { |
| capa_mask = WLAN_CAPABILITY_IBSS; |
| capa_val = WLAN_CAPABILITY_IBSS; |
| } else { |
| capa_mask = WLAN_CAPABILITY_ESS; |
| capa_val = WLAN_CAPABILITY_ESS; |
| } |
| |
| /* Before informing the join/connect event, make sure that |
| * bss entry is present in scan list, if it not present |
| * construct and insert into scan list, otherwise that |
| * event will be dropped on the way by cfg80211, due to |
| * this keys will not be plumbed in case of WEP and |
| * application will not be aware of join/connect status. */ |
| bss = cfg80211_get_bss(ar->wdev->wiphy, NULL, bssid, |
| ar->wdev->ssid, ar->wdev->ssid_len, |
| capa_mask, capa_val); |
| |
| /* |
| * Earlier we were updating the cfg about bss by making a beacon frame |
| * only if the entry for bss is not there. This can have some issue if |
| * ROAM event is generated and a heavy traffic is ongoing. The ROAM |
| * event is handled through a work queue and by the time it really gets |
| * handled, BSS would have been aged out. So it is better to update the |
| * cfg about BSS irrespective of its entry being present right now or |
| * not. |
| */ |
| |
| if (nw_type & ADHOC_NETWORK) { |
| /* construct 802.11 mgmt beacon */ |
| if (ptr_ie_buf) { |
| *ptr_ie_buf++ = WLAN_EID_SSID; |
| *ptr_ie_buf++ = ar->ssid_len; |
| memcpy(ptr_ie_buf, ar->ssid, ar->ssid_len); |
| ptr_ie_buf += ar->ssid_len; |
| |
| *ptr_ie_buf++ = WLAN_EID_IBSS_PARAMS; |
| *ptr_ie_buf++ = 2; /* length */ |
| *ptr_ie_buf++ = 0; /* ATIM window */ |
| *ptr_ie_buf++ = 0; /* ATIM window */ |
| |
| /* TODO: update ibss params and include supported rates, |
| * DS param set, extened support rates, wmm. */ |
| |
| ie_buf_len = ptr_ie_buf - ie_buf; |
| } |
| |
| capability |= WLAN_CAPABILITY_IBSS; |
| |
| if (ar->prwise_crypto == WEP_CRYPT) |
| capability |= WLAN_CAPABILITY_PRIVACY; |
| |
| memcpy(source_mac, ar->net_dev->dev_addr, ETH_ALEN); |
| ptr_ie_buf = ie_buf; |
| } else { |
| capability = *(u16 *) (&assoc_info[beacon_ie_len]); |
| memcpy(source_mac, bssid, ETH_ALEN); |
| ptr_ie_buf = assoc_req_ie; |
| ie_buf_len = assoc_req_len; |
| } |
| |
| size = offsetof(struct ieee80211_mgmt, u) |
| + sizeof(mgmt->u.beacon) |
| + ie_buf_len; |
| |
| ieeemgmtbuf = kzalloc(size, GFP_ATOMIC); |
| if (!ieeemgmtbuf) { |
| ath6kl_err("ieee mgmt buf alloc error\n"); |
| cfg80211_put_bss(bss); |
| return; |
| } |
| |
| mgmt = (struct ieee80211_mgmt *)ieeemgmtbuf; |
| mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | |
| IEEE80211_STYPE_BEACON); |
| memset(mgmt->da, 0xff, ETH_ALEN); /* broadcast addr */ |
| memcpy(mgmt->sa, source_mac, ETH_ALEN); |
| memcpy(mgmt->bssid, bssid, ETH_ALEN); |
| mgmt->u.beacon.beacon_int = cpu_to_le16(beacon_intvl); |
| mgmt->u.beacon.capab_info = cpu_to_le16(capability); |
| memcpy(mgmt->u.beacon.variable, ptr_ie_buf, ie_buf_len); |
| |
| ibss_ch = ieee80211_get_channel(ar->wdev->wiphy, (int)channel); |
| |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, |
| "%s: inform bss with bssid %pM channel %d beacon_intvl %d capability 0x%x\n", |
| __func__, mgmt->bssid, ibss_ch->hw_value, |
| beacon_intvl, capability); |
| |
| bss = cfg80211_inform_bss_frame(ar->wdev->wiphy, |
| ibss_ch, mgmt, |
| size, signal, GFP_KERNEL); |
| kfree(ieeemgmtbuf); |
| cfg80211_put_bss(bss); |
| |
| if (nw_type & ADHOC_NETWORK) { |
| cfg80211_ibss_joined(ar->net_dev, bssid, GFP_KERNEL); |
| return; |
| } |
| |
| if (!test_bit(CONNECTED, &ar->flag)) { |
| /* inform connect result to cfg80211 */ |
| ar->sme_state = SME_DISCONNECTED; |
| cfg80211_connect_result(ar->net_dev, bssid, |
| assoc_req_ie, assoc_req_len, |
| assoc_resp_ie, assoc_resp_len, |
| WLAN_STATUS_SUCCESS, GFP_KERNEL); |
| } else { |
| /* inform roam event to cfg80211 */ |
| cfg80211_roamed(ar->net_dev, ibss_ch, bssid, |
| assoc_req_ie, assoc_req_len, |
| assoc_resp_ie, assoc_resp_len, GFP_KERNEL); |
| } |
| } |
| |
| static int ath6kl_cfg80211_disconnect(struct wiphy *wiphy, |
| struct net_device *dev, u16 reason_code) |
| { |
| struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(dev); |
| |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: reason=%u\n", __func__, |
| reason_code); |
| |
| if (!ath6kl_cfg80211_ready(ar)) |
| return -EIO; |
| |
| if (test_bit(DESTROY_IN_PROGRESS, &ar->flag)) { |
| ath6kl_err("busy, destroy in progress\n"); |
| return -EBUSY; |
| } |
| |
| if (down_interruptible(&ar->sem)) { |
| ath6kl_err("busy, couldn't get access\n"); |
| return -ERESTARTSYS; |
| } |
| |
| ar->reconnect_flag = 0; |
| ath6kl_disconnect(ar); |
| memset(ar->ssid, 0, sizeof(ar->ssid)); |
| ar->ssid_len = 0; |
| |
| if (!test_bit(SKIP_SCAN, &ar->flag)) |
| memset(ar->req_bssid, 0, sizeof(ar->req_bssid)); |
| |
| up(&ar->sem); |
| |
| return 0; |
| } |
| |
| void ath6kl_cfg80211_disconnect_event(struct ath6kl *ar, u8 reason, |
| u8 *bssid, u8 assoc_resp_len, |
| u8 *assoc_info, u16 proto_reason) |
| { |
| struct ath6kl_key *key = NULL; |
| u16 status; |
| |
| if (ar->scan_req) { |
| cfg80211_scan_done(ar->scan_req, true); |
| ar->scan_req = NULL; |
| } |
| |
| if (ar->nw_type & ADHOC_NETWORK) { |
| if (ar->wdev->iftype != NL80211_IFTYPE_ADHOC) { |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, |
| "%s: ath6k not in ibss mode\n", __func__); |
| return; |
| } |
| memset(bssid, 0, ETH_ALEN); |
| cfg80211_ibss_joined(ar->net_dev, bssid, GFP_KERNEL); |
| return; |
| } |
| |
| if (ar->nw_type & INFRA_NETWORK) { |
| if (ar->wdev->iftype != NL80211_IFTYPE_STATION) { |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, |
| "%s: ath6k not in station mode\n", __func__); |
| return; |
| } |
| } |
| |
| if (!test_bit(CONNECT_PEND, &ar->flag)) { |
| if (reason != DISCONNECT_CMD) |
| ath6kl_wmi_disconnect_cmd(ar->wmi); |
| |
| return; |
| } |
| |
| if (reason == NO_NETWORK_AVAIL) { |
| /* connect cmd failed */ |
| ath6kl_wmi_disconnect_cmd(ar->wmi); |
| return; |
| } |
| |
| if (reason != DISCONNECT_CMD) |
| return; |
| |
| if (!ar->auto_auth_stage) { |
| clear_bit(CONNECT_PEND, &ar->flag); |
| |
| if (ar->sme_state == SME_CONNECTING) { |
| cfg80211_connect_result(ar->net_dev, |
| bssid, NULL, 0, |
| NULL, 0, |
| WLAN_STATUS_UNSPECIFIED_FAILURE, |
| GFP_KERNEL); |
| } else { |
| cfg80211_disconnected(ar->net_dev, reason, |
| NULL, 0, GFP_KERNEL); |
| } |
| |
| ar->sme_state = SME_DISCONNECTED; |
| return; |
| } |
| |
| if (ar->dot11_auth_mode != OPEN_AUTH) |
| return; |
| |
| /* |
| * If the current auth algorithm is open, try shared and |
| * make autoAuthStage idle. We do not make it leap for now |
| * being. |
| */ |
| key = &ar->keys[ar->def_txkey_index]; |
| if (down_interruptible(&ar->sem)) { |
| ath6kl_err("busy, couldn't get access\n"); |
| return; |
| } |
| |
| ar->dot11_auth_mode = SHARED_AUTH; |
| ar->auto_auth_stage = AUTH_IDLE; |
| |
| ath6kl_wmi_addkey_cmd(ar->wmi, |
| ar->def_txkey_index, |
| ar->prwise_crypto, |
| GROUP_USAGE | TX_USAGE, |
| key->key_len, NULL, |
| key->key, |
| KEY_OP_INIT_VAL, NULL, |
| NO_SYNC_WMIFLAG); |
| |
| status = ath6kl_wmi_connect_cmd(ar->wmi, |
| ar->nw_type, |
| ar->dot11_auth_mode, |
| ar->auth_mode, |
| ar->prwise_crypto, |
| ar->prwise_crypto_len, |
| ar->grp_crypto, |
| ar->grp_crpto_len, |
| ar->ssid_len, |
| ar->ssid, |
| ar->req_bssid, |
| ar->ch_hint, |
| ar->connect_ctrl_flags); |
| up(&ar->sem); |
| } |
| |
| static inline bool is_ch_11a(u16 ch) |
| { |
| return (!((ch >= 2412) && (ch <= 2484))); |
| } |
| |
| static void ath6kl_cfg80211_scan_node(void *arg, struct bss *ni) |
| { |
| struct wiphy *wiphy = (struct wiphy *)arg; |
| u16 size; |
| unsigned char *ieeemgmtbuf = NULL; |
| struct ieee80211_mgmt *mgmt; |
| struct ieee80211_channel *channel; |
| struct ieee80211_supported_band *band; |
| struct ath6kl_common_ie *cie; |
| s32 signal; |
| int freq; |
| |
| cie = &ni->ni_cie; |
| |
| if (is_ch_11a(cie->ie_chan)) |
| band = wiphy->bands[IEEE80211_BAND_5GHZ]; /* 11a */ |
| else if ((cie->ie_erp) || (cie->ie_xrates)) |
| band = wiphy->bands[IEEE80211_BAND_2GHZ]; /* 11g */ |
| else |
| band = wiphy->bands[IEEE80211_BAND_2GHZ]; /* 11b */ |
| |
| size = ni->ni_framelen + offsetof(struct ieee80211_mgmt, u); |
| ieeemgmtbuf = kmalloc(size, GFP_ATOMIC); |
| if (!ieeemgmtbuf) { |
| ath6kl_err("ieee mgmt buf alloc error\n"); |
| return; |
| } |
| |
| /* |
| * TODO: Update target to include 802.11 mac header while sending |
| * bss info. Target removes 802.11 mac header while sending the bss |
| * info to host, cfg80211 needs it, for time being just filling the |
| * da, sa and bssid fields alone. |
| */ |
| mgmt = (struct ieee80211_mgmt *)ieeemgmtbuf; |
| memset(mgmt->da, 0xff, ETH_ALEN); /*broadcast addr */ |
| memcpy(mgmt->sa, ni->ni_macaddr, ETH_ALEN); |
| memcpy(mgmt->bssid, ni->ni_macaddr, ETH_ALEN); |
| memcpy(ieeemgmtbuf + offsetof(struct ieee80211_mgmt, u), |
| ni->ni_buf, ni->ni_framelen); |
| |
| freq = cie->ie_chan; |
| channel = ieee80211_get_channel(wiphy, freq); |
| signal = ni->ni_snr * 100; |
| |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, |
| "%s: bssid %pM ch %d freq %d size %d\n", __func__, |
| mgmt->bssid, channel->hw_value, freq, size); |
| cfg80211_inform_bss_frame(wiphy, channel, mgmt, |
| size, signal, GFP_KERNEL); |
| |
| kfree(ieeemgmtbuf); |
| } |
| |
| static int ath6kl_cfg80211_scan(struct wiphy *wiphy, struct net_device *ndev, |
| struct cfg80211_scan_request *request) |
| { |
| struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(ndev); |
| int ret = 0; |
| u32 force_fg_scan = 0; |
| |
| if (!ath6kl_cfg80211_ready(ar)) |
| return -EIO; |
| |
| if (!ar->usr_bss_filter) { |
| if (ath6kl_wmi_bssfilter_cmd(ar->wmi, |
| (test_bit(CONNECTED, &ar->flag) ? |
| ALL_BUT_BSS_FILTER : |
| ALL_BSS_FILTER), 0) != 0) { |
| ath6kl_err("couldn't set bss filtering\n"); |
| return -EIO; |
| } |
| } |
| |
| if (request->n_ssids && request->ssids[0].ssid_len) { |
| u8 i; |
| |
| if (request->n_ssids > (MAX_PROBED_SSID_INDEX - 1)) |
| request->n_ssids = MAX_PROBED_SSID_INDEX - 1; |
| |
| for (i = 0; i < request->n_ssids; i++) |
| ath6kl_wmi_probedssid_cmd(ar->wmi, i + 1, |
| SPECIFIC_SSID_FLAG, |
| request->ssids[i].ssid_len, |
| request->ssids[i].ssid); |
| } |
| |
| if (test_bit(CONNECTED, &ar->flag)) |
| force_fg_scan = 1; |
| |
| if (ath6kl_wmi_startscan_cmd(ar->wmi, WMI_LONG_SCAN, force_fg_scan, |
| false, 0, 0, 0, NULL) != 0) { |
| ath6kl_err("wmi_startscan_cmd failed\n"); |
| ret = -EIO; |
| } |
| |
| ar->scan_req = request; |
| |
| return ret; |
| } |
| |
| void ath6kl_cfg80211_scan_complete_event(struct ath6kl *ar, int status) |
| { |
| |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: status %d\n", __func__, status); |
| |
| if (ar->scan_req) { |
| /* Translate data to cfg80211 mgmt format */ |
| ath6kl_wmi_iterate_nodes(ar->wmi, ath6kl_cfg80211_scan_node, |
| ar->wdev->wiphy); |
| |
| cfg80211_scan_done(ar->scan_req, ((status & -ECANCELED) |
| || (status & -EBUSY)) ? true : |
| false); |
| |
| if (ar->scan_req->n_ssids && ar->scan_req->ssids[0].ssid_len) { |
| u8 i; |
| |
| for (i = 0; i < ar->scan_req->n_ssids; i++) { |
| ath6kl_wmi_probedssid_cmd(ar->wmi, i + 1, |
| DISABLE_SSID_FLAG, |
| 0, NULL); |
| } |
| } |
| ar->scan_req = NULL; |
| } |
| } |
| |
| static int ath6kl_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev, |
| u8 key_index, bool pairwise, |
| const u8 *mac_addr, |
| struct key_params *params) |
| { |
| struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(ndev); |
| struct ath6kl_key *key = NULL; |
| u8 key_usage; |
| u8 key_type; |
| int status = 0; |
| |
| if (!ath6kl_cfg80211_ready(ar)) |
| return -EIO; |
| |
| if (key_index < WMI_MIN_KEY_INDEX || key_index > WMI_MAX_KEY_INDEX) { |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, |
| "%s: key index %d out of bounds\n", __func__, |
| key_index); |
| return -ENOENT; |
| } |
| |
| key = &ar->keys[key_index]; |
| memset(key, 0, sizeof(struct ath6kl_key)); |
| |
| if (pairwise) |
| key_usage = PAIRWISE_USAGE; |
| else |
| key_usage = GROUP_USAGE; |
| |
| if (params) { |
| if (params->key_len > WLAN_MAX_KEY_LEN || |
| params->seq_len > sizeof(key->seq)) |
| return -EINVAL; |
| |
| key->key_len = params->key_len; |
| memcpy(key->key, params->key, key->key_len); |
| key->seq_len = params->seq_len; |
| memcpy(key->seq, params->seq, key->seq_len); |
| key->cipher = params->cipher; |
| } |
| |
| switch (key->cipher) { |
| case WLAN_CIPHER_SUITE_WEP40: |
| case WLAN_CIPHER_SUITE_WEP104: |
| key_type = WEP_CRYPT; |
| break; |
| |
| case WLAN_CIPHER_SUITE_TKIP: |
| key_type = TKIP_CRYPT; |
| break; |
| |
| case WLAN_CIPHER_SUITE_CCMP: |
| key_type = AES_CRYPT; |
| break; |
| |
| default: |
| return -ENOTSUPP; |
| } |
| |
| if (((ar->auth_mode == WPA_PSK_AUTH) |
| || (ar->auth_mode == WPA2_PSK_AUTH)) |
| && (key_usage & GROUP_USAGE)) |
| del_timer(&ar->disconnect_timer); |
| |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, |
| "%s: index %d, key_len %d, key_type 0x%x, key_usage 0x%x, seq_len %d\n", |
| __func__, key_index, key->key_len, key_type, |
| key_usage, key->seq_len); |
| |
| ar->def_txkey_index = key_index; |
| status = ath6kl_wmi_addkey_cmd(ar->wmi, ar->def_txkey_index, |
| key_type, key_usage, key->key_len, |
| key->seq, key->key, KEY_OP_INIT_VAL, |
| (u8 *) mac_addr, SYNC_BOTH_WMIFLAG); |
| |
| if (status) |
| return -EIO; |
| |
| return 0; |
| } |
| |
| static int ath6kl_cfg80211_del_key(struct wiphy *wiphy, struct net_device *ndev, |
| u8 key_index, bool pairwise, |
| const u8 *mac_addr) |
| { |
| struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(ndev); |
| |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index); |
| |
| if (!ath6kl_cfg80211_ready(ar)) |
| return -EIO; |
| |
| if (key_index < WMI_MIN_KEY_INDEX || key_index > WMI_MAX_KEY_INDEX) { |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, |
| "%s: key index %d out of bounds\n", __func__, |
| key_index); |
| return -ENOENT; |
| } |
| |
| if (!ar->keys[key_index].key_len) { |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, |
| "%s: index %d is empty\n", __func__, key_index); |
| return 0; |
| } |
| |
| ar->keys[key_index].key_len = 0; |
| |
| return ath6kl_wmi_deletekey_cmd(ar->wmi, key_index); |
| } |
| |
| static int ath6kl_cfg80211_get_key(struct wiphy *wiphy, struct net_device *ndev, |
| u8 key_index, bool pairwise, |
| const u8 *mac_addr, void *cookie, |
| void (*callback) (void *cookie, |
| struct key_params *)) |
| { |
| struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(ndev); |
| struct ath6kl_key *key = NULL; |
| struct key_params params; |
| |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index); |
| |
| if (!ath6kl_cfg80211_ready(ar)) |
| return -EIO; |
| |
| if (key_index < WMI_MIN_KEY_INDEX || key_index > WMI_MAX_KEY_INDEX) { |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, |
| "%s: key index %d out of bounds\n", __func__, |
| key_index); |
| return -ENOENT; |
| } |
| |
| key = &ar->keys[key_index]; |
| memset(¶ms, 0, sizeof(params)); |
| params.cipher = key->cipher; |
| params.key_len = key->key_len; |
| params.seq_len = key->seq_len; |
| params.seq = key->seq; |
| params.key = key->key; |
| |
| callback(cookie, ¶ms); |
| |
| return key->key_len ? 0 : -ENOENT; |
| } |
| |
| static int ath6kl_cfg80211_set_default_key(struct wiphy *wiphy, |
| struct net_device *ndev, |
| u8 key_index, bool unicast, |
| bool multicast) |
| { |
| struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(ndev); |
| struct ath6kl_key *key = NULL; |
| int status = 0; |
| u8 key_usage; |
| |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index); |
| |
| if (!ath6kl_cfg80211_ready(ar)) |
| return -EIO; |
| |
| if (key_index < WMI_MIN_KEY_INDEX || key_index > WMI_MAX_KEY_INDEX) { |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, |
| "%s: key index %d out of bounds\n", |
| __func__, key_index); |
| return -ENOENT; |
| } |
| |
| if (!ar->keys[key_index].key_len) { |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: invalid key index %d\n", |
| __func__, key_index); |
| return -EINVAL; |
| } |
| |
| ar->def_txkey_index = key_index; |
| key = &ar->keys[ar->def_txkey_index]; |
| key_usage = GROUP_USAGE; |
| if (ar->prwise_crypto == WEP_CRYPT) |
| key_usage |= TX_USAGE; |
| |
| status = ath6kl_wmi_addkey_cmd(ar->wmi, ar->def_txkey_index, |
| ar->prwise_crypto, key_usage, |
| key->key_len, key->seq, key->key, |
| KEY_OP_INIT_VAL, NULL, |
| SYNC_BOTH_WMIFLAG); |
| if (status) |
| return -EIO; |
| |
| return 0; |
| } |
| |
| void ath6kl_cfg80211_tkip_micerr_event(struct ath6kl *ar, u8 keyid, |
| bool ismcast) |
| { |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, |
| "%s: keyid %d, ismcast %d\n", __func__, keyid, ismcast); |
| |
| cfg80211_michael_mic_failure(ar->net_dev, ar->bssid, |
| (ismcast ? NL80211_KEYTYPE_GROUP : |
| NL80211_KEYTYPE_PAIRWISE), keyid, NULL, |
| GFP_KERNEL); |
| } |
| |
| static int ath6kl_cfg80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) |
| { |
| struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy); |
| int ret; |
| |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: changed 0x%x\n", __func__, |
| changed); |
| |
| if (!ath6kl_cfg80211_ready(ar)) |
| return -EIO; |
| |
| if (changed & WIPHY_PARAM_RTS_THRESHOLD) { |
| ret = ath6kl_wmi_set_rts_cmd(ar->wmi, wiphy->rts_threshold); |
| if (ret != 0) { |
| ath6kl_err("ath6kl_wmi_set_rts_cmd failed\n"); |
| return -EIO; |
| } |
| } |
| |
| return 0; |
| } |
| |
| /* |
| * The type nl80211_tx_power_setting replaces the following |
| * data type from 2.6.36 onwards |
| */ |
| static int ath6kl_cfg80211_set_txpower(struct wiphy *wiphy, |
| enum nl80211_tx_power_setting type, |
| int dbm) |
| { |
| struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy); |
| u8 ath6kl_dbm; |
| |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x, dbm %d\n", __func__, |
| type, dbm); |
| |
| if (!ath6kl_cfg80211_ready(ar)) |
| return -EIO; |
| |
| switch (type) { |
| case NL80211_TX_POWER_AUTOMATIC: |
| return 0; |
| case NL80211_TX_POWER_LIMITED: |
| ar->tx_pwr = ath6kl_dbm = dbm; |
| break; |
| default: |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x not supported\n", |
| __func__, type); |
| return -EOPNOTSUPP; |
| } |
| |
| ath6kl_wmi_set_tx_pwr_cmd(ar->wmi, ath6kl_dbm); |
| |
| return 0; |
| } |
| |
| static int ath6kl_cfg80211_get_txpower(struct wiphy *wiphy, int *dbm) |
| { |
| struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy); |
| |
| if (!ath6kl_cfg80211_ready(ar)) |
| return -EIO; |
| |
| if (test_bit(CONNECTED, &ar->flag)) { |
| ar->tx_pwr = 0; |
| |
| if (ath6kl_wmi_get_tx_pwr_cmd(ar->wmi) != 0) { |
| ath6kl_err("ath6kl_wmi_get_tx_pwr_cmd failed\n"); |
| return -EIO; |
| } |
| |
| wait_event_interruptible_timeout(ar->event_wq, ar->tx_pwr != 0, |
| 5 * HZ); |
| |
| if (signal_pending(current)) { |
| ath6kl_err("target did not respond\n"); |
| return -EINTR; |
| } |
| } |
| |
| *dbm = ar->tx_pwr; |
| return 0; |
| } |
| |
| static int ath6kl_cfg80211_set_power_mgmt(struct wiphy *wiphy, |
| struct net_device *dev, |
| bool pmgmt, int timeout) |
| { |
| struct ath6kl *ar = ath6kl_priv(dev); |
| struct wmi_power_mode_cmd mode; |
| |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: pmgmt %d, timeout %d\n", |
| __func__, pmgmt, timeout); |
| |
| if (!ath6kl_cfg80211_ready(ar)) |
| return -EIO; |
| |
| if (pmgmt) { |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: max perf\n", __func__); |
| mode.pwr_mode = REC_POWER; |
| } else { |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: rec power\n", __func__); |
| mode.pwr_mode = MAX_PERF_POWER; |
| } |
| |
| if (ath6kl_wmi_powermode_cmd(ar->wmi, mode.pwr_mode) != 0) { |
| ath6kl_err("wmi_powermode_cmd failed\n"); |
| return -EIO; |
| } |
| |
| return 0; |
| } |
| |
| static int ath6kl_cfg80211_change_iface(struct wiphy *wiphy, |
| struct net_device *ndev, |
| enum nl80211_iftype type, u32 *flags, |
| struct vif_params *params) |
| { |
| struct ath6kl *ar = ath6kl_priv(ndev); |
| struct wireless_dev *wdev = ar->wdev; |
| |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type %u\n", __func__, type); |
| |
| if (!ath6kl_cfg80211_ready(ar)) |
| return -EIO; |
| |
| switch (type) { |
| case NL80211_IFTYPE_STATION: |
| ar->next_mode = INFRA_NETWORK; |
| break; |
| case NL80211_IFTYPE_ADHOC: |
| ar->next_mode = ADHOC_NETWORK; |
| break; |
| default: |
| ath6kl_err("invalid interface type %u\n", type); |
| return -EOPNOTSUPP; |
| } |
| |
| wdev->iftype = type; |
| |
| return 0; |
| } |
| |
| static int ath6kl_cfg80211_join_ibss(struct wiphy *wiphy, |
| struct net_device *dev, |
| struct cfg80211_ibss_params *ibss_param) |
| { |
| struct ath6kl *ar = ath6kl_priv(dev); |
| int status; |
| |
| if (!ath6kl_cfg80211_ready(ar)) |
| return -EIO; |
| |
| ar->ssid_len = ibss_param->ssid_len; |
| memcpy(ar->ssid, ibss_param->ssid, ar->ssid_len); |
| |
| if (ibss_param->channel) |
| ar->ch_hint = ibss_param->channel->center_freq; |
| |
| if (ibss_param->channel_fixed) { |
| /* |
| * TODO: channel_fixed: The channel should be fixed, do not |
| * search for IBSSs to join on other channels. Target |
| * firmware does not support this feature, needs to be |
| * updated. |
| */ |
| return -EOPNOTSUPP; |
| } |
| |
| memset(ar->req_bssid, 0, sizeof(ar->req_bssid)); |
| if (ibss_param->bssid && !is_broadcast_ether_addr(ibss_param->bssid)) |
| memcpy(ar->req_bssid, ibss_param->bssid, sizeof(ar->req_bssid)); |
| |
| ath6kl_set_wpa_version(ar, 0); |
| |
| status = ath6kl_set_auth_type(ar, NL80211_AUTHTYPE_OPEN_SYSTEM); |
| if (status) |
| return status; |
| |
| if (ibss_param->privacy) { |
| ath6kl_set_cipher(ar, WLAN_CIPHER_SUITE_WEP40, true); |
| ath6kl_set_cipher(ar, WLAN_CIPHER_SUITE_WEP40, false); |
| } else { |
| ath6kl_set_cipher(ar, 0, true); |
| ath6kl_set_cipher(ar, 0, false); |
| } |
| |
| ar->nw_type = ar->next_mode; |
| |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, |
| "%s: connect called with authmode %d dot11 auth %d" |
| " PW crypto %d PW crypto len %d GRP crypto %d" |
| " GRP crypto len %d channel hint %u\n", |
| __func__, |
| ar->auth_mode, ar->dot11_auth_mode, ar->prwise_crypto, |
| ar->prwise_crypto_len, ar->grp_crypto, |
| ar->grp_crpto_len, ar->ch_hint); |
| |
| status = ath6kl_wmi_connect_cmd(ar->wmi, ar->nw_type, |
| ar->dot11_auth_mode, ar->auth_mode, |
| ar->prwise_crypto, |
| ar->prwise_crypto_len, |
| ar->grp_crypto, ar->grp_crpto_len, |
| ar->ssid_len, ar->ssid, |
| ar->req_bssid, ar->ch_hint, |
| ar->connect_ctrl_flags); |
| set_bit(CONNECT_PEND, &ar->flag); |
| |
| return 0; |
| } |
| |
| static int ath6kl_cfg80211_leave_ibss(struct wiphy *wiphy, |
| struct net_device *dev) |
| { |
| struct ath6kl *ar = (struct ath6kl *)ath6kl_priv(dev); |
| |
| if (!ath6kl_cfg80211_ready(ar)) |
| return -EIO; |
| |
| ath6kl_disconnect(ar); |
| memset(ar->ssid, 0, sizeof(ar->ssid)); |
| ar->ssid_len = 0; |
| |
| return 0; |
| } |
| |
| static const u32 cipher_suites[] = { |
| WLAN_CIPHER_SUITE_WEP40, |
| WLAN_CIPHER_SUITE_WEP104, |
| WLAN_CIPHER_SUITE_TKIP, |
| WLAN_CIPHER_SUITE_CCMP, |
| }; |
| |
| static bool is_rate_legacy(s32 rate) |
| { |
| static const s32 legacy[] = { 1000, 2000, 5500, 11000, |
| 6000, 9000, 12000, 18000, 24000, |
| 36000, 48000, 54000 |
| }; |
| u8 i; |
| |
| for (i = 0; i < ARRAY_SIZE(legacy); i++) |
| if (rate == legacy[i]) |
| return true; |
| |
| return false; |
| } |
| |
| static bool is_rate_ht20(s32 rate, u8 *mcs, bool *sgi) |
| { |
| static const s32 ht20[] = { 6500, 13000, 19500, 26000, 39000, |
| 52000, 58500, 65000, 72200 |
| }; |
| u8 i; |
| |
| for (i = 0; i < ARRAY_SIZE(ht20); i++) { |
| if (rate == ht20[i]) { |
| if (i == ARRAY_SIZE(ht20) - 1) |
| /* last rate uses sgi */ |
| *sgi = true; |
| else |
| *sgi = false; |
| |
| *mcs = i; |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| static bool is_rate_ht40(s32 rate, u8 *mcs, bool *sgi) |
| { |
| static const s32 ht40[] = { 13500, 27000, 40500, 54000, |
| 81000, 108000, 121500, 135000, |
| 150000 |
| }; |
| u8 i; |
| |
| for (i = 0; i < ARRAY_SIZE(ht40); i++) { |
| if (rate == ht40[i]) { |
| if (i == ARRAY_SIZE(ht40) - 1) |
| /* last rate uses sgi */ |
| *sgi = true; |
| else |
| *sgi = false; |
| |
| *mcs = i; |
| return true; |
| } |
| } |
| |
| return false; |
| } |
| |
| static int ath6kl_get_station(struct wiphy *wiphy, struct net_device *dev, |
| u8 *mac, struct station_info *sinfo) |
| { |
| struct ath6kl *ar = ath6kl_priv(dev); |
| long left; |
| bool sgi; |
| s32 rate; |
| int ret; |
| u8 mcs; |
| |
| if (memcmp(mac, ar->bssid, ETH_ALEN) != 0) |
| return -ENOENT; |
| |
| if (down_interruptible(&ar->sem)) |
| return -EBUSY; |
| |
| set_bit(STATS_UPDATE_PEND, &ar->flag); |
| |
| ret = ath6kl_wmi_get_stats_cmd(ar->wmi); |
| |
| if (ret != 0) { |
| up(&ar->sem); |
| return -EIO; |
| } |
| |
| left = wait_event_interruptible_timeout(ar->event_wq, |
| !test_bit(STATS_UPDATE_PEND, |
| &ar->flag), |
| WMI_TIMEOUT); |
| |
| up(&ar->sem); |
| |
| if (left == 0) |
| return -ETIMEDOUT; |
| else if (left < 0) |
| return left; |
| |
| if (ar->target_stats.rx_byte) { |
| sinfo->rx_bytes = ar->target_stats.rx_byte; |
| sinfo->filled |= STATION_INFO_RX_BYTES; |
| sinfo->rx_packets = ar->target_stats.rx_pkt; |
| sinfo->filled |= STATION_INFO_RX_PACKETS; |
| } |
| |
| if (ar->target_stats.tx_byte) { |
| sinfo->tx_bytes = ar->target_stats.tx_byte; |
| sinfo->filled |= STATION_INFO_TX_BYTES; |
| sinfo->tx_packets = ar->target_stats.tx_pkt; |
| sinfo->filled |= STATION_INFO_TX_PACKETS; |
| } |
| |
| sinfo->signal = ar->target_stats.cs_rssi; |
| sinfo->filled |= STATION_INFO_SIGNAL; |
| |
| rate = ar->target_stats.tx_ucast_rate; |
| |
| if (is_rate_legacy(rate)) { |
| sinfo->txrate.legacy = rate / 100; |
| } else if (is_rate_ht20(rate, &mcs, &sgi)) { |
| if (sgi) { |
| sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI; |
| sinfo->txrate.mcs = mcs - 1; |
| } else { |
| sinfo->txrate.mcs = mcs; |
| } |
| |
| sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS; |
| } else if (is_rate_ht40(rate, &mcs, &sgi)) { |
| if (sgi) { |
| sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI; |
| sinfo->txrate.mcs = mcs - 1; |
| } else { |
| sinfo->txrate.mcs = mcs; |
| } |
| |
| sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH; |
| sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS; |
| } else { |
| ath6kl_warn("invalid rate: %d\n", rate); |
| return 0; |
| } |
| |
| sinfo->filled |= STATION_INFO_TX_BITRATE; |
| |
| return 0; |
| } |
| |
| static int ath6kl_set_pmksa(struct wiphy *wiphy, struct net_device *netdev, |
| struct cfg80211_pmksa *pmksa) |
| { |
| struct ath6kl *ar = ath6kl_priv(netdev); |
| return ath6kl_wmi_setpmkid_cmd(ar->wmi, pmksa->bssid, |
| pmksa->pmkid, true); |
| } |
| |
| static int ath6kl_del_pmksa(struct wiphy *wiphy, struct net_device *netdev, |
| struct cfg80211_pmksa *pmksa) |
| { |
| struct ath6kl *ar = ath6kl_priv(netdev); |
| return ath6kl_wmi_setpmkid_cmd(ar->wmi, pmksa->bssid, |
| pmksa->pmkid, false); |
| } |
| |
| static int ath6kl_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev) |
| { |
| struct ath6kl *ar = ath6kl_priv(netdev); |
| if (test_bit(CONNECTED, &ar->flag)) |
| return ath6kl_wmi_setpmkid_cmd(ar->wmi, ar->bssid, NULL, false); |
| return 0; |
| } |
| |
| static struct cfg80211_ops ath6kl_cfg80211_ops = { |
| .change_virtual_intf = ath6kl_cfg80211_change_iface, |
| .scan = ath6kl_cfg80211_scan, |
| .connect = ath6kl_cfg80211_connect, |
| .disconnect = ath6kl_cfg80211_disconnect, |
| .add_key = ath6kl_cfg80211_add_key, |
| .get_key = ath6kl_cfg80211_get_key, |
| .del_key = ath6kl_cfg80211_del_key, |
| .set_default_key = ath6kl_cfg80211_set_default_key, |
| .set_wiphy_params = ath6kl_cfg80211_set_wiphy_params, |
| .set_tx_power = ath6kl_cfg80211_set_txpower, |
| .get_tx_power = ath6kl_cfg80211_get_txpower, |
| .set_power_mgmt = ath6kl_cfg80211_set_power_mgmt, |
| .join_ibss = ath6kl_cfg80211_join_ibss, |
| .leave_ibss = ath6kl_cfg80211_leave_ibss, |
| .get_station = ath6kl_get_station, |
| .set_pmksa = ath6kl_set_pmksa, |
| .del_pmksa = ath6kl_del_pmksa, |
| .flush_pmksa = ath6kl_flush_pmksa, |
| }; |
| |
| struct wireless_dev *ath6kl_cfg80211_init(struct device *dev) |
| { |
| int ret = 0; |
| struct wireless_dev *wdev; |
| |
| wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL); |
| if (!wdev) { |
| ath6kl_err("couldn't allocate wireless device\n"); |
| return NULL; |
| } |
| |
| /* create a new wiphy for use with cfg80211 */ |
| wdev->wiphy = wiphy_new(&ath6kl_cfg80211_ops, sizeof(struct ath6kl)); |
| if (!wdev->wiphy) { |
| ath6kl_err("couldn't allocate wiphy device\n"); |
| kfree(wdev); |
| return NULL; |
| } |
| |
| /* set device pointer for wiphy */ |
| set_wiphy_dev(wdev->wiphy, dev); |
| |
| wdev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | |
| BIT(NL80211_IFTYPE_ADHOC); |
| /* max num of ssids that can be probed during scanning */ |
| wdev->wiphy->max_scan_ssids = MAX_PROBED_SSID_INDEX; |
| wdev->wiphy->bands[IEEE80211_BAND_2GHZ] = &ath6kl_band_2ghz; |
| wdev->wiphy->bands[IEEE80211_BAND_5GHZ] = &ath6kl_band_5ghz; |
| wdev->wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; |
| |
| wdev->wiphy->cipher_suites = cipher_suites; |
| wdev->wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); |
| |
| ret = wiphy_register(wdev->wiphy); |
| if (ret < 0) { |
| ath6kl_err("couldn't register wiphy device\n"); |
| wiphy_free(wdev->wiphy); |
| kfree(wdev); |
| return NULL; |
| } |
| |
| return wdev; |
| } |
| |
| void ath6kl_cfg80211_deinit(struct ath6kl *ar) |
| { |
| struct wireless_dev *wdev = ar->wdev; |
| |
| if (ar->scan_req) { |
| cfg80211_scan_done(ar->scan_req, true); |
| ar->scan_req = NULL; |
| } |
| |
| if (!wdev) |
| return; |
| |
| wiphy_unregister(wdev->wiphy); |
| wiphy_free(wdev->wiphy); |
| kfree(wdev); |
| } |