| /* |
| * Copyright (c) 2004-2011 Atheros Communications Inc. |
| * Copyright (c) 2011-2012 Qualcomm Atheros, Inc. |
| * |
| * Permission to use, copy, modify, and/or distribute this software for any |
| * purpose with or without fee is hereby granted, provided that the above |
| * copyright notice and this permission notice appear in all copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
| * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
| * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
| * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
| * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| */ |
| |
| #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| |
| #include <linux/moduleparam.h> |
| #include <linux/inetdevice.h> |
| #include <linux/export.h> |
| #include <linux/sched/signal.h> |
| |
| #include "core.h" |
| #include "cfg80211.h" |
| #include "debug.h" |
| #include "hif-ops.h" |
| #include "testmode.h" |
| |
| #define RATETAB_ENT(_rate, _rateid, _flags) { \ |
| .bitrate = (_rate), \ |
| .flags = (_flags), \ |
| .hw_value = (_rateid), \ |
| } |
| |
| #define CHAN2G(_channel, _freq, _flags) { \ |
| .band = NL80211_BAND_2GHZ, \ |
| .hw_value = (_channel), \ |
| .center_freq = (_freq), \ |
| .flags = (_flags), \ |
| .max_antenna_gain = 0, \ |
| .max_power = 30, \ |
| } |
| |
| #define CHAN5G(_channel, _flags) { \ |
| .band = NL80211_BAND_5GHZ, \ |
| .hw_value = (_channel), \ |
| .center_freq = 5000 + (5 * (_channel)), \ |
| .flags = (_flags), \ |
| .max_antenna_gain = 0, \ |
| .max_power = 30, \ |
| } |
| |
| #define DEFAULT_BG_SCAN_PERIOD 60 |
| |
| struct ath6kl_cfg80211_match_probe_ssid { |
| struct cfg80211_ssid ssid; |
| u8 flag; |
| }; |
| |
| 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 |
| |
| #define ath6kl_g_htcap IEEE80211_HT_CAP_SGI_20 |
| #define ath6kl_a_htcap (IEEE80211_HT_CAP_SUP_WIDTH_20_40 | \ |
| IEEE80211_HT_CAP_SGI_20 | \ |
| IEEE80211_HT_CAP_SGI_40) |
| |
| 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(36, 0), CHAN5G(40, 0), |
| CHAN5G(44, 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, |
| .ht_cap.cap = ath6kl_g_htcap, |
| .ht_cap.ht_supported = true, |
| }; |
| |
| 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, |
| .ht_cap.cap = ath6kl_a_htcap, |
| .ht_cap.ht_supported = true, |
| }; |
| |
| #define CCKM_KRK_CIPHER_SUITE 0x004096ff /* use for KRK */ |
| |
| /* returns true if scheduled scan was stopped */ |
| static bool __ath6kl_cfg80211_sscan_stop(struct ath6kl_vif *vif) |
| { |
| struct ath6kl *ar = vif->ar; |
| |
| if (!test_and_clear_bit(SCHED_SCANNING, &vif->flags)) |
| return false; |
| |
| del_timer_sync(&vif->sched_scan_timer); |
| |
| if (ar->state == ATH6KL_STATE_RECOVERY) |
| return true; |
| |
| ath6kl_wmi_enable_sched_scan_cmd(ar->wmi, vif->fw_vif_idx, false); |
| |
| return true; |
| } |
| |
| static void ath6kl_cfg80211_sscan_disable(struct ath6kl_vif *vif) |
| { |
| struct ath6kl *ar = vif->ar; |
| bool stopped; |
| |
| stopped = __ath6kl_cfg80211_sscan_stop(vif); |
| |
| if (!stopped) |
| return; |
| |
| cfg80211_sched_scan_stopped(ar->wiphy, 0); |
| } |
| |
| static int ath6kl_set_wpa_version(struct ath6kl_vif *vif, |
| enum nl80211_wpa_versions wpa_version) |
| { |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: %u\n", __func__, wpa_version); |
| |
| if (!wpa_version) { |
| vif->auth_mode = NONE_AUTH; |
| } else if (wpa_version & NL80211_WPA_VERSION_2) { |
| vif->auth_mode = WPA2_AUTH; |
| } else if (wpa_version & NL80211_WPA_VERSION_1) { |
| vif->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_vif *vif, |
| 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: |
| vif->dot11_auth_mode = OPEN_AUTH; |
| break; |
| case NL80211_AUTHTYPE_SHARED_KEY: |
| vif->dot11_auth_mode = SHARED_AUTH; |
| break; |
| case NL80211_AUTHTYPE_NETWORK_EAP: |
| vif->dot11_auth_mode = LEAP_AUTH; |
| break; |
| |
| case NL80211_AUTHTYPE_AUTOMATIC: |
| vif->dot11_auth_mode = OPEN_AUTH | SHARED_AUTH; |
| break; |
| |
| default: |
| ath6kl_err("%s: 0x%x not supported\n", __func__, auth_type); |
| return -ENOTSUPP; |
| } |
| |
| return 0; |
| } |
| |
| static int ath6kl_set_cipher(struct ath6kl_vif *vif, u32 cipher, bool ucast) |
| { |
| u8 *ar_cipher = ucast ? &vif->prwise_crypto : &vif->grp_crypto; |
| u8 *ar_cipher_len = ucast ? &vif->prwise_crypto_len : |
| &vif->grp_crypto_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; |
| case WLAN_CIPHER_SUITE_SMS4: |
| *ar_cipher = WAPI_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_vif *vif, u32 key_mgmt) |
| { |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: 0x%x\n", __func__, key_mgmt); |
| |
| if (key_mgmt == WLAN_AKM_SUITE_PSK) { |
| if (vif->auth_mode == WPA_AUTH) |
| vif->auth_mode = WPA_PSK_AUTH; |
| else if (vif->auth_mode == WPA2_AUTH) |
| vif->auth_mode = WPA2_PSK_AUTH; |
| } else if (key_mgmt == 0x00409600) { |
| if (vif->auth_mode == WPA_AUTH) |
| vif->auth_mode = WPA_AUTH_CCKM; |
| else if (vif->auth_mode == WPA2_AUTH) |
| vif->auth_mode = WPA2_AUTH_CCKM; |
| } else if (key_mgmt != WLAN_AKM_SUITE_8021X) { |
| vif->auth_mode = NONE_AUTH; |
| } |
| } |
| |
| static bool ath6kl_cfg80211_ready(struct ath6kl_vif *vif) |
| { |
| struct ath6kl *ar = vif->ar; |
| |
| if (!test_bit(WMI_READY, &ar->flag)) { |
| ath6kl_err("wmi is not ready\n"); |
| return false; |
| } |
| |
| if (!test_bit(WLAN_ENABLED, &vif->flags)) { |
| ath6kl_err("wlan disabled\n"); |
| return false; |
| } |
| |
| return true; |
| } |
| |
| static bool ath6kl_is_wpa_ie(const u8 *pos) |
| { |
| return pos[0] == WLAN_EID_VENDOR_SPECIFIC && pos[1] >= 4 && |
| pos[2] == 0x00 && pos[3] == 0x50 && |
| pos[4] == 0xf2 && pos[5] == 0x01; |
| } |
| |
| static bool ath6kl_is_rsn_ie(const u8 *pos) |
| { |
| return pos[0] == WLAN_EID_RSN; |
| } |
| |
| static bool ath6kl_is_wps_ie(const u8 *pos) |
| { |
| return (pos[0] == WLAN_EID_VENDOR_SPECIFIC && |
| pos[1] >= 4 && |
| pos[2] == 0x00 && pos[3] == 0x50 && pos[4] == 0xf2 && |
| pos[5] == 0x04); |
| } |
| |
| static int ath6kl_set_assoc_req_ies(struct ath6kl_vif *vif, const u8 *ies, |
| size_t ies_len) |
| { |
| struct ath6kl *ar = vif->ar; |
| const u8 *pos; |
| u8 *buf = NULL; |
| size_t len = 0; |
| int ret; |
| |
| /* |
| * Clear previously set flag |
| */ |
| |
| ar->connect_ctrl_flags &= ~CONNECT_WPS_FLAG; |
| |
| /* |
| * Filter out RSN/WPA IE(s) |
| */ |
| |
| if (ies && ies_len) { |
| buf = kmalloc(ies_len, GFP_KERNEL); |
| if (buf == NULL) |
| return -ENOMEM; |
| pos = ies; |
| |
| while (pos + 1 < ies + ies_len) { |
| if (pos + 2 + pos[1] > ies + ies_len) |
| break; |
| if (!(ath6kl_is_wpa_ie(pos) || ath6kl_is_rsn_ie(pos))) { |
| memcpy(buf + len, pos, 2 + pos[1]); |
| len += 2 + pos[1]; |
| } |
| |
| if (ath6kl_is_wps_ie(pos)) |
| ar->connect_ctrl_flags |= CONNECT_WPS_FLAG; |
| |
| pos += 2 + pos[1]; |
| } |
| } |
| |
| ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, |
| WMI_FRAME_ASSOC_REQ, buf, len); |
| kfree(buf); |
| return ret; |
| } |
| |
| static int ath6kl_nliftype_to_drv_iftype(enum nl80211_iftype type, u8 *nw_type) |
| { |
| switch (type) { |
| case NL80211_IFTYPE_STATION: |
| case NL80211_IFTYPE_P2P_CLIENT: |
| *nw_type = INFRA_NETWORK; |
| break; |
| case NL80211_IFTYPE_ADHOC: |
| *nw_type = ADHOC_NETWORK; |
| break; |
| case NL80211_IFTYPE_AP: |
| case NL80211_IFTYPE_P2P_GO: |
| *nw_type = AP_NETWORK; |
| break; |
| default: |
| ath6kl_err("invalid interface type %u\n", type); |
| return -ENOTSUPP; |
| } |
| |
| return 0; |
| } |
| |
| static bool ath6kl_is_valid_iftype(struct ath6kl *ar, enum nl80211_iftype type, |
| u8 *if_idx, u8 *nw_type) |
| { |
| int i; |
| |
| if (ath6kl_nliftype_to_drv_iftype(type, nw_type)) |
| return false; |
| |
| if (ar->ibss_if_active || ((type == NL80211_IFTYPE_ADHOC) && |
| ar->num_vif)) |
| return false; |
| |
| if (type == NL80211_IFTYPE_STATION || |
| type == NL80211_IFTYPE_AP || type == NL80211_IFTYPE_ADHOC) { |
| for (i = 0; i < ar->vif_max; i++) { |
| if ((ar->avail_idx_map) & BIT(i)) { |
| *if_idx = i; |
| return true; |
| } |
| } |
| } |
| |
| if (type == NL80211_IFTYPE_P2P_CLIENT || |
| type == NL80211_IFTYPE_P2P_GO) { |
| for (i = ar->max_norm_iface; i < ar->vif_max; i++) { |
| if ((ar->avail_idx_map) & BIT(i)) { |
| *if_idx = i; |
| return true; |
| } |
| } |
| } |
| |
| return false; |
| } |
| |
| static bool ath6kl_is_tx_pending(struct ath6kl *ar) |
| { |
| return ar->tx_pending[ath6kl_wmi_get_control_ep(ar->wmi)] == 0; |
| } |
| |
| static void ath6kl_cfg80211_sta_bmiss_enhance(struct ath6kl_vif *vif, |
| bool enable) |
| { |
| int err; |
| |
| if (WARN_ON(!test_bit(WMI_READY, &vif->ar->flag))) |
| return; |
| |
| if (vif->nw_type != INFRA_NETWORK) |
| return; |
| |
| if (!test_bit(ATH6KL_FW_CAPABILITY_BMISS_ENHANCE, |
| vif->ar->fw_capabilities)) |
| return; |
| |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s fw bmiss enhance\n", |
| enable ? "enable" : "disable"); |
| |
| err = ath6kl_wmi_sta_bmiss_enhance_cmd(vif->ar->wmi, |
| vif->fw_vif_idx, enable); |
| if (err) |
| ath6kl_err("failed to %s enhanced bmiss detection: %d\n", |
| enable ? "enable" : "disable", err); |
| } |
| |
| static int ath6kl_cfg80211_connect(struct wiphy *wiphy, struct net_device *dev, |
| struct cfg80211_connect_params *sme) |
| { |
| struct ath6kl *ar = ath6kl_priv(dev); |
| struct ath6kl_vif *vif = netdev_priv(dev); |
| int status; |
| u8 nw_subtype = (ar->p2p) ? SUBTYPE_P2PDEV : SUBTYPE_NONE; |
| u16 interval; |
| |
| ath6kl_cfg80211_sscan_disable(vif); |
| |
| vif->sme_state = SME_CONNECTING; |
| |
| if (!ath6kl_cfg80211_ready(vif)) |
| 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, |
| ath6kl_is_tx_pending(ar), |
| WMI_TIMEOUT); |
| if (signal_pending(current)) { |
| ath6kl_err("cmd queue drain timeout\n"); |
| up(&ar->sem); |
| return -EINTR; |
| } |
| } |
| |
| status = ath6kl_set_assoc_req_ies(vif, sme->ie, sme->ie_len); |
| if (status) { |
| up(&ar->sem); |
| return status; |
| } |
| |
| if (sme->ie == NULL || sme->ie_len == 0) |
| ar->connect_ctrl_flags &= ~CONNECT_WPS_FLAG; |
| |
| if (test_bit(CONNECTED, &vif->flags) && |
| vif->ssid_len == sme->ssid_len && |
| !memcmp(vif->ssid, sme->ssid, vif->ssid_len)) { |
| vif->reconnect_flag = true; |
| status = ath6kl_wmi_reconnect_cmd(ar->wmi, vif->fw_vif_idx, |
| vif->req_bssid, |
| vif->ch_hint); |
| |
| up(&ar->sem); |
| if (status) { |
| ath6kl_err("wmi_reconnect_cmd failed\n"); |
| return -EIO; |
| } |
| return 0; |
| } else if (vif->ssid_len == sme->ssid_len && |
| !memcmp(vif->ssid, sme->ssid, vif->ssid_len)) { |
| ath6kl_disconnect(vif); |
| } |
| |
| memset(vif->ssid, 0, sizeof(vif->ssid)); |
| vif->ssid_len = sme->ssid_len; |
| memcpy(vif->ssid, sme->ssid, sme->ssid_len); |
| |
| if (sme->channel) |
| vif->ch_hint = sme->channel->center_freq; |
| |
| memset(vif->req_bssid, 0, sizeof(vif->req_bssid)); |
| if (sme->bssid && !is_broadcast_ether_addr(sme->bssid)) |
| memcpy(vif->req_bssid, sme->bssid, sizeof(vif->req_bssid)); |
| |
| ath6kl_set_wpa_version(vif, sme->crypto.wpa_versions); |
| |
| status = ath6kl_set_auth_type(vif, sme->auth_type); |
| if (status) { |
| up(&ar->sem); |
| return status; |
| } |
| |
| if (sme->crypto.n_ciphers_pairwise) |
| ath6kl_set_cipher(vif, sme->crypto.ciphers_pairwise[0], true); |
| else |
| ath6kl_set_cipher(vif, 0, true); |
| |
| ath6kl_set_cipher(vif, sme->crypto.cipher_group, false); |
| |
| if (sme->crypto.n_akm_suites) |
| ath6kl_set_key_mgmt(vif, sme->crypto.akm_suites[0]); |
| |
| if ((sme->key_len) && |
| (vif->auth_mode == NONE_AUTH) && |
| (vif->prwise_crypto == WEP_CRYPT)) { |
| struct ath6kl_key *key = NULL; |
| |
| if (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 = &vif->keys[sme->key_idx]; |
| key->key_len = sme->key_len; |
| memcpy(key->key, sme->key, key->key_len); |
| key->cipher = vif->prwise_crypto; |
| vif->def_txkey_index = sme->key_idx; |
| |
| ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, sme->key_idx, |
| vif->prwise_crypto, |
| GROUP_USAGE | TX_USAGE, |
| key->key_len, |
| NULL, 0, |
| key->key, KEY_OP_INIT_VAL, NULL, |
| NO_SYNC_WMIFLAG); |
| } |
| |
| if (!ar->usr_bss_filter) { |
| clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags); |
| if (ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, |
| ALL_BSS_FILTER, 0) != 0) { |
| ath6kl_err("couldn't set bss filtering\n"); |
| up(&ar->sem); |
| return -EIO; |
| } |
| } |
| |
| vif->nw_type = vif->next_mode; |
| |
| /* enable enhanced bmiss detection if applicable */ |
| ath6kl_cfg80211_sta_bmiss_enhance(vif, true); |
| |
| if (vif->wdev.iftype == NL80211_IFTYPE_P2P_CLIENT) |
| nw_subtype = SUBTYPE_P2PCLIENT; |
| |
| 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__, |
| vif->auth_mode, vif->dot11_auth_mode, vif->prwise_crypto, |
| vif->prwise_crypto_len, vif->grp_crypto, |
| vif->grp_crypto_len, vif->ch_hint); |
| |
| vif->reconnect_flag = 0; |
| |
| if (vif->nw_type == INFRA_NETWORK) { |
| interval = max_t(u16, vif->listen_intvl_t, |
| ATH6KL_MAX_WOW_LISTEN_INTL); |
| status = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx, |
| interval, |
| 0); |
| if (status) { |
| ath6kl_err("couldn't set listen intervel\n"); |
| up(&ar->sem); |
| return status; |
| } |
| } |
| |
| status = ath6kl_wmi_connect_cmd(ar->wmi, vif->fw_vif_idx, vif->nw_type, |
| vif->dot11_auth_mode, vif->auth_mode, |
| vif->prwise_crypto, |
| vif->prwise_crypto_len, |
| vif->grp_crypto, vif->grp_crypto_len, |
| vif->ssid_len, vif->ssid, |
| vif->req_bssid, vif->ch_hint, |
| ar->connect_ctrl_flags, nw_subtype); |
| |
| if (sme->bg_scan_period == 0) { |
| /* disable background scan if period is 0 */ |
| sme->bg_scan_period = 0xffff; |
| } else if (sme->bg_scan_period == -1) { |
| /* configure default value if not specified */ |
| sme->bg_scan_period = DEFAULT_BG_SCAN_PERIOD; |
| } |
| |
| ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 0, 0, |
| sme->bg_scan_period, 0, 0, 0, 3, 0, 0, 0); |
| |
| up(&ar->sem); |
| |
| if (status == -EINVAL) { |
| memset(vif->ssid, 0, sizeof(vif->ssid)); |
| vif->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)) && |
| ((vif->auth_mode == WPA_PSK_AUTH) || |
| (vif->auth_mode == WPA2_PSK_AUTH))) { |
| mod_timer(&vif->disconnect_timer, |
| jiffies + msecs_to_jiffies(DISCON_TIMER_INTVAL)); |
| } |
| |
| ar->connect_ctrl_flags &= ~CONNECT_DO_WPA_OFFLOAD; |
| set_bit(CONNECT_PEND, &vif->flags); |
| |
| return 0; |
| } |
| |
| static struct cfg80211_bss * |
| ath6kl_add_bss_if_needed(struct ath6kl_vif *vif, |
| enum network_type nw_type, |
| const u8 *bssid, |
| struct ieee80211_channel *chan, |
| const u8 *beacon_ie, |
| size_t beacon_ie_len) |
| { |
| struct ath6kl *ar = vif->ar; |
| struct cfg80211_bss *bss; |
| u16 cap_val; |
| enum ieee80211_bss_type bss_type; |
| u8 *ie; |
| |
| if (nw_type & ADHOC_NETWORK) { |
| cap_val = WLAN_CAPABILITY_IBSS; |
| bss_type = IEEE80211_BSS_TYPE_IBSS; |
| } else { |
| cap_val = WLAN_CAPABILITY_ESS; |
| bss_type = IEEE80211_BSS_TYPE_ESS; |
| } |
| |
| bss = cfg80211_get_bss(ar->wiphy, chan, bssid, |
| vif->ssid, vif->ssid_len, |
| bss_type, IEEE80211_PRIVACY_ANY); |
| if (bss == NULL) { |
| /* |
| * Since cfg80211 may not yet know about the BSS, |
| * generate a partial entry until the first BSS info |
| * event becomes available. |
| * |
| * Prepend SSID element since it is not included in the Beacon |
| * IEs from the target. |
| */ |
| ie = kmalloc(2 + vif->ssid_len + beacon_ie_len, GFP_KERNEL); |
| if (ie == NULL) |
| return NULL; |
| ie[0] = WLAN_EID_SSID; |
| ie[1] = vif->ssid_len; |
| memcpy(ie + 2, vif->ssid, vif->ssid_len); |
| memcpy(ie + 2 + vif->ssid_len, beacon_ie, beacon_ie_len); |
| bss = cfg80211_inform_bss(ar->wiphy, chan, |
| CFG80211_BSS_FTYPE_UNKNOWN, |
| bssid, 0, cap_val, 100, |
| ie, 2 + vif->ssid_len + beacon_ie_len, |
| 0, GFP_KERNEL); |
| if (bss) |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, |
| "added bss %pM to cfg80211\n", bssid); |
| kfree(ie); |
| } else { |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "cfg80211 already has a bss\n"); |
| } |
| |
| return bss; |
| } |
| |
| void ath6kl_cfg80211_connect_event(struct ath6kl_vif *vif, 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) |
| { |
| struct ieee80211_channel *chan; |
| struct ath6kl *ar = vif->ar; |
| struct cfg80211_bss *bss; |
| |
| /* 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; |
| |
| /* |
| * Store Beacon interval here; DTIM period will be available only once |
| * a Beacon frame from the AP is seen. |
| */ |
| vif->assoc_bss_beacon_int = beacon_intvl; |
| clear_bit(DTIM_PERIOD_AVAIL, &vif->flags); |
| |
| if (nw_type & ADHOC_NETWORK) { |
| if (vif->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 (vif->wdev.iftype != NL80211_IFTYPE_STATION && |
| vif->wdev.iftype != NL80211_IFTYPE_P2P_CLIENT) { |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, |
| "%s: ath6k not in station mode\n", __func__); |
| return; |
| } |
| } |
| |
| chan = ieee80211_get_channel(ar->wiphy, (int) channel); |
| |
| bss = ath6kl_add_bss_if_needed(vif, nw_type, bssid, chan, |
| assoc_info, beacon_ie_len); |
| if (!bss) { |
| ath6kl_err("could not add cfg80211 bss entry\n"); |
| return; |
| } |
| |
| if (nw_type & ADHOC_NETWORK) { |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "ad-hoc %s selected\n", |
| nw_type & ADHOC_CREATOR ? "creator" : "joiner"); |
| cfg80211_ibss_joined(vif->ndev, bssid, chan, GFP_KERNEL); |
| cfg80211_put_bss(ar->wiphy, bss); |
| return; |
| } |
| |
| if (vif->sme_state == SME_CONNECTING) { |
| /* inform connect result to cfg80211 */ |
| vif->sme_state = SME_CONNECTED; |
| cfg80211_connect_result(vif->ndev, bssid, |
| assoc_req_ie, assoc_req_len, |
| assoc_resp_ie, assoc_resp_len, |
| WLAN_STATUS_SUCCESS, GFP_KERNEL); |
| cfg80211_put_bss(ar->wiphy, bss); |
| } else if (vif->sme_state == SME_CONNECTED) { |
| struct cfg80211_roam_info roam_info = { |
| .bss = bss, |
| .req_ie = assoc_req_ie, |
| .req_ie_len = assoc_req_len, |
| .resp_ie = assoc_resp_ie, |
| .resp_ie_len = assoc_resp_len, |
| }; |
| /* inform roam event to cfg80211 */ |
| cfg80211_roamed(vif->ndev, &roam_info, GFP_KERNEL); |
| } |
| } |
| |
| static int ath6kl_cfg80211_disconnect(struct wiphy *wiphy, |
| struct net_device *dev, u16 reason_code) |
| { |
| struct ath6kl *ar = ath6kl_priv(dev); |
| struct ath6kl_vif *vif = netdev_priv(dev); |
| |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: reason=%u\n", __func__, |
| reason_code); |
| |
| ath6kl_cfg80211_sscan_disable(vif); |
| |
| if (!ath6kl_cfg80211_ready(vif)) |
| 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; |
| } |
| |
| vif->reconnect_flag = 0; |
| ath6kl_disconnect(vif); |
| memset(vif->ssid, 0, sizeof(vif->ssid)); |
| vif->ssid_len = 0; |
| |
| if (!test_bit(SKIP_SCAN, &ar->flag)) |
| memset(vif->req_bssid, 0, sizeof(vif->req_bssid)); |
| |
| up(&ar->sem); |
| |
| return 0; |
| } |
| |
| void ath6kl_cfg80211_disconnect_event(struct ath6kl_vif *vif, u8 reason, |
| u8 *bssid, u8 assoc_resp_len, |
| u8 *assoc_info, u16 proto_reason) |
| { |
| struct ath6kl *ar = vif->ar; |
| |
| if (vif->scan_req) { |
| struct cfg80211_scan_info info = { |
| .aborted = true, |
| }; |
| |
| cfg80211_scan_done(vif->scan_req, &info); |
| vif->scan_req = NULL; |
| } |
| |
| if (vif->nw_type & ADHOC_NETWORK) { |
| if (vif->wdev.iftype != NL80211_IFTYPE_ADHOC) |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, |
| "%s: ath6k not in ibss mode\n", __func__); |
| return; |
| } |
| |
| if (vif->nw_type & INFRA_NETWORK) { |
| if (vif->wdev.iftype != NL80211_IFTYPE_STATION && |
| vif->wdev.iftype != NL80211_IFTYPE_P2P_CLIENT) { |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, |
| "%s: ath6k not in station mode\n", __func__); |
| return; |
| } |
| } |
| |
| clear_bit(CONNECT_PEND, &vif->flags); |
| |
| if (vif->sme_state == SME_CONNECTING) { |
| cfg80211_connect_result(vif->ndev, |
| bssid, NULL, 0, |
| NULL, 0, |
| WLAN_STATUS_UNSPECIFIED_FAILURE, |
| GFP_KERNEL); |
| } else if (vif->sme_state == SME_CONNECTED) { |
| cfg80211_disconnected(vif->ndev, proto_reason, |
| NULL, 0, false, GFP_KERNEL); |
| } |
| |
| vif->sme_state = SME_DISCONNECTED; |
| |
| /* |
| * Send a disconnect command to target when a disconnect event is |
| * received with reason code other than 3 (DISCONNECT_CMD - disconnect |
| * request from host) to make the firmware stop trying to connect even |
| * after giving disconnect event. There will be one more disconnect |
| * event for this disconnect command with reason code DISCONNECT_CMD |
| * which won't be notified to cfg80211. |
| */ |
| if (reason != DISCONNECT_CMD) |
| ath6kl_wmi_disconnect_cmd(ar->wmi, vif->fw_vif_idx); |
| } |
| |
| static int ath6kl_set_probed_ssids(struct ath6kl *ar, |
| struct ath6kl_vif *vif, |
| struct cfg80211_ssid *ssids, int n_ssids, |
| struct cfg80211_match_set *match_set, |
| int n_match_ssid) |
| { |
| u8 i, j, index_to_add, ssid_found = false; |
| struct ath6kl_cfg80211_match_probe_ssid ssid_list[MAX_PROBED_SSIDS]; |
| |
| memset(ssid_list, 0, sizeof(ssid_list)); |
| |
| if (n_ssids > MAX_PROBED_SSIDS || |
| n_match_ssid > MAX_PROBED_SSIDS) |
| return -EINVAL; |
| |
| for (i = 0; i < n_ssids; i++) { |
| memcpy(ssid_list[i].ssid.ssid, |
| ssids[i].ssid, |
| ssids[i].ssid_len); |
| ssid_list[i].ssid.ssid_len = ssids[i].ssid_len; |
| |
| if (ssids[i].ssid_len) |
| ssid_list[i].flag = SPECIFIC_SSID_FLAG; |
| else |
| ssid_list[i].flag = ANY_SSID_FLAG; |
| |
| if (n_match_ssid == 0) |
| ssid_list[i].flag |= MATCH_SSID_FLAG; |
| } |
| |
| index_to_add = i; |
| |
| for (i = 0; i < n_match_ssid; i++) { |
| ssid_found = false; |
| |
| for (j = 0; j < n_ssids; j++) { |
| if ((match_set[i].ssid.ssid_len == |
| ssid_list[j].ssid.ssid_len) && |
| (!memcmp(ssid_list[j].ssid.ssid, |
| match_set[i].ssid.ssid, |
| match_set[i].ssid.ssid_len))) { |
| ssid_list[j].flag |= MATCH_SSID_FLAG; |
| ssid_found = true; |
| break; |
| } |
| } |
| |
| if (ssid_found) |
| continue; |
| |
| if (index_to_add >= MAX_PROBED_SSIDS) |
| continue; |
| |
| ssid_list[index_to_add].ssid.ssid_len = |
| match_set[i].ssid.ssid_len; |
| memcpy(ssid_list[index_to_add].ssid.ssid, |
| match_set[i].ssid.ssid, |
| match_set[i].ssid.ssid_len); |
| ssid_list[index_to_add].flag |= MATCH_SSID_FLAG; |
| index_to_add++; |
| } |
| |
| for (i = 0; i < index_to_add; i++) { |
| ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx, i, |
| ssid_list[i].flag, |
| ssid_list[i].ssid.ssid_len, |
| ssid_list[i].ssid.ssid); |
| } |
| |
| /* Make sure no old entries are left behind */ |
| for (i = index_to_add; i < MAX_PROBED_SSIDS; i++) { |
| ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx, i, |
| DISABLE_SSID_FLAG, 0, NULL); |
| } |
| |
| return 0; |
| } |
| |
| static int ath6kl_cfg80211_scan(struct wiphy *wiphy, |
| struct cfg80211_scan_request *request) |
| { |
| struct ath6kl_vif *vif = ath6kl_vif_from_wdev(request->wdev); |
| struct ath6kl *ar = ath6kl_priv(vif->ndev); |
| s8 n_channels = 0; |
| u16 *channels = NULL; |
| int ret = 0; |
| u32 force_fg_scan = 0; |
| |
| if (!ath6kl_cfg80211_ready(vif)) |
| return -EIO; |
| |
| ath6kl_cfg80211_sscan_disable(vif); |
| |
| if (!ar->usr_bss_filter) { |
| clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags); |
| ret = ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, |
| ALL_BSS_FILTER, 0); |
| if (ret) { |
| ath6kl_err("couldn't set bss filtering\n"); |
| return ret; |
| } |
| } |
| |
| ret = ath6kl_set_probed_ssids(ar, vif, request->ssids, |
| request->n_ssids, NULL, 0); |
| if (ret < 0) |
| return ret; |
| |
| /* this also clears IE in fw if it's not set */ |
| ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, |
| WMI_FRAME_PROBE_REQ, |
| request->ie, request->ie_len); |
| if (ret) { |
| ath6kl_err("failed to set Probe Request appie for scan\n"); |
| return ret; |
| } |
| |
| /* |
| * Scan only the requested channels if the request specifies a set of |
| * channels. If the list is longer than the target supports, do not |
| * configure the list and instead, scan all available channels. |
| */ |
| if (request->n_channels > 0 && |
| request->n_channels <= WMI_MAX_CHANNELS) { |
| u8 i; |
| |
| n_channels = request->n_channels; |
| |
| channels = kzalloc(n_channels * sizeof(u16), GFP_KERNEL); |
| if (channels == NULL) { |
| ath6kl_warn("failed to set scan channels, scan all channels"); |
| n_channels = 0; |
| } |
| |
| for (i = 0; i < n_channels; i++) |
| channels[i] = request->channels[i]->center_freq; |
| } |
| |
| if (test_bit(CONNECTED, &vif->flags)) |
| force_fg_scan = 1; |
| |
| vif->scan_req = request; |
| |
| ret = ath6kl_wmi_beginscan_cmd(ar->wmi, vif->fw_vif_idx, |
| WMI_LONG_SCAN, force_fg_scan, |
| false, 0, |
| ATH6KL_FG_SCAN_INTERVAL, |
| n_channels, channels, |
| request->no_cck, |
| request->rates); |
| if (ret) { |
| ath6kl_err("failed to start scan: %d\n", ret); |
| vif->scan_req = NULL; |
| } |
| |
| kfree(channels); |
| |
| return ret; |
| } |
| |
| void ath6kl_cfg80211_scan_complete_event(struct ath6kl_vif *vif, bool aborted) |
| { |
| struct ath6kl *ar = vif->ar; |
| struct cfg80211_scan_info info = { |
| .aborted = aborted, |
| }; |
| int i; |
| |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: status%s\n", __func__, |
| aborted ? " aborted" : ""); |
| |
| if (!vif->scan_req) |
| return; |
| |
| if (aborted) |
| goto out; |
| |
| if (vif->scan_req->n_ssids && vif->scan_req->ssids[0].ssid_len) { |
| for (i = 0; i < vif->scan_req->n_ssids; i++) { |
| ath6kl_wmi_probedssid_cmd(ar->wmi, vif->fw_vif_idx, |
| i + 1, DISABLE_SSID_FLAG, |
| 0, NULL); |
| } |
| } |
| |
| out: |
| cfg80211_scan_done(vif->scan_req, &info); |
| vif->scan_req = NULL; |
| } |
| |
| void ath6kl_cfg80211_ch_switch_notify(struct ath6kl_vif *vif, int freq, |
| enum wmi_phy_mode mode) |
| { |
| struct cfg80211_chan_def chandef; |
| |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, |
| "channel switch notify nw_type %d freq %d mode %d\n", |
| vif->nw_type, freq, mode); |
| |
| cfg80211_chandef_create(&chandef, |
| ieee80211_get_channel(vif->ar->wiphy, freq), |
| (mode == WMI_11G_HT20 && |
| ath6kl_band_2ghz.ht_cap.ht_supported) ? |
| NL80211_CHAN_HT20 : NL80211_CHAN_NO_HT); |
| |
| mutex_lock(&vif->wdev.mtx); |
| cfg80211_ch_switch_notify(vif->ndev, &chandef); |
| mutex_unlock(&vif->wdev.mtx); |
| } |
| |
| 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 = ath6kl_priv(ndev); |
| struct ath6kl_vif *vif = netdev_priv(ndev); |
| struct ath6kl_key *key = NULL; |
| int seq_len; |
| u8 key_usage; |
| u8 key_type; |
| |
| if (!ath6kl_cfg80211_ready(vif)) |
| return -EIO; |
| |
| if (params->cipher == CCKM_KRK_CIPHER_SUITE) { |
| if (params->key_len != WMI_KRK_LEN) |
| return -EINVAL; |
| return ath6kl_wmi_add_krk_cmd(ar->wmi, vif->fw_vif_idx, |
| params->key); |
| } |
| |
| if (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 = &vif->keys[key_index]; |
| memset(key, 0, sizeof(struct ath6kl_key)); |
| |
| if (pairwise) |
| key_usage = PAIRWISE_USAGE; |
| else |
| key_usage = GROUP_USAGE; |
| |
| seq_len = params->seq_len; |
| if (params->cipher == WLAN_CIPHER_SUITE_SMS4 && |
| seq_len > ATH6KL_KEY_SEQ_LEN) { |
| /* Only first half of the WPI PN is configured */ |
| seq_len = ATH6KL_KEY_SEQ_LEN; |
| } |
| if (params->key_len > WLAN_MAX_KEY_LEN || |
| seq_len > sizeof(key->seq)) |
| return -EINVAL; |
| |
| key->key_len = params->key_len; |
| memcpy(key->key, params->key, key->key_len); |
| key->seq_len = 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; |
| case WLAN_CIPHER_SUITE_SMS4: |
| key_type = WAPI_CRYPT; |
| break; |
| |
| default: |
| return -ENOTSUPP; |
| } |
| |
| if (((vif->auth_mode == WPA_PSK_AUTH) || |
| (vif->auth_mode == WPA2_PSK_AUTH)) && |
| (key_usage & GROUP_USAGE)) |
| del_timer(&vif->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); |
| |
| if (vif->nw_type == AP_NETWORK && !pairwise && |
| (key_type == TKIP_CRYPT || key_type == AES_CRYPT || |
| key_type == WAPI_CRYPT)) { |
| ar->ap_mode_bkey.valid = true; |
| ar->ap_mode_bkey.key_index = key_index; |
| ar->ap_mode_bkey.key_type = key_type; |
| ar->ap_mode_bkey.key_len = key->key_len; |
| memcpy(ar->ap_mode_bkey.key, key->key, key->key_len); |
| if (!test_bit(CONNECTED, &vif->flags)) { |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, |
| "Delay initial group key configuration until AP mode has been started\n"); |
| /* |
| * The key will be set in ath6kl_connect_ap_mode() once |
| * the connected event is received from the target. |
| */ |
| return 0; |
| } |
| } |
| |
| if (vif->next_mode == AP_NETWORK && key_type == WEP_CRYPT && |
| !test_bit(CONNECTED, &vif->flags)) { |
| /* |
| * Store the key locally so that it can be re-configured after |
| * the AP mode has properly started |
| * (ath6kl_install_statioc_wep_keys). |
| */ |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, |
| "Delay WEP key configuration until AP mode has been started\n"); |
| vif->wep_key_list[key_index].key_len = key->key_len; |
| memcpy(vif->wep_key_list[key_index].key, key->key, |
| key->key_len); |
| return 0; |
| } |
| |
| return ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, key_index, |
| key_type, key_usage, key->key_len, |
| key->seq, key->seq_len, key->key, |
| KEY_OP_INIT_VAL, |
| (u8 *) mac_addr, SYNC_BOTH_WMIFLAG); |
| } |
| |
| 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 = ath6kl_priv(ndev); |
| struct ath6kl_vif *vif = netdev_priv(ndev); |
| |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index); |
| |
| if (!ath6kl_cfg80211_ready(vif)) |
| return -EIO; |
| |
| if (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 (!vif->keys[key_index].key_len) { |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, |
| "%s: index %d is empty\n", __func__, key_index); |
| return 0; |
| } |
| |
| vif->keys[key_index].key_len = 0; |
| |
| return ath6kl_wmi_deletekey_cmd(ar->wmi, vif->fw_vif_idx, 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_vif *vif = netdev_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(vif)) |
| return -EIO; |
| |
| if (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 = &vif->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 = ath6kl_priv(ndev); |
| struct ath6kl_vif *vif = netdev_priv(ndev); |
| struct ath6kl_key *key = NULL; |
| u8 key_usage; |
| enum crypto_type key_type = NONE_CRYPT; |
| |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: index %d\n", __func__, key_index); |
| |
| if (!ath6kl_cfg80211_ready(vif)) |
| return -EIO; |
| |
| if (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 (!vif->keys[key_index].key_len) { |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: invalid key index %d\n", |
| __func__, key_index); |
| return -EINVAL; |
| } |
| |
| vif->def_txkey_index = key_index; |
| key = &vif->keys[vif->def_txkey_index]; |
| key_usage = GROUP_USAGE; |
| if (vif->prwise_crypto == WEP_CRYPT) |
| key_usage |= TX_USAGE; |
| if (unicast) |
| key_type = vif->prwise_crypto; |
| if (multicast) |
| key_type = vif->grp_crypto; |
| |
| if (vif->next_mode == AP_NETWORK && !test_bit(CONNECTED, &vif->flags)) |
| return 0; /* Delay until AP mode has been started */ |
| |
| return ath6kl_wmi_addkey_cmd(ar->wmi, vif->fw_vif_idx, |
| vif->def_txkey_index, |
| key_type, key_usage, |
| key->key_len, key->seq, key->seq_len, |
| key->key, |
| KEY_OP_INIT_VAL, NULL, |
| SYNC_BOTH_WMIFLAG); |
| } |
| |
| void ath6kl_cfg80211_tkip_micerr_event(struct ath6kl_vif *vif, u8 keyid, |
| bool ismcast) |
| { |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, |
| "%s: keyid %d, ismcast %d\n", __func__, keyid, ismcast); |
| |
| cfg80211_michael_mic_failure(vif->ndev, vif->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); |
| struct ath6kl_vif *vif; |
| int ret; |
| |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: changed 0x%x\n", __func__, |
| changed); |
| |
| vif = ath6kl_vif_first(ar); |
| if (!vif) |
| return -EIO; |
| |
| if (!ath6kl_cfg80211_ready(vif)) |
| 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; |
| } |
| |
| static int ath6kl_cfg80211_set_txpower(struct wiphy *wiphy, |
| struct wireless_dev *wdev, |
| enum nl80211_tx_power_setting type, |
| int mbm) |
| { |
| struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy); |
| struct ath6kl_vif *vif; |
| int dbm = MBM_TO_DBM(mbm); |
| |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type 0x%x, dbm %d\n", __func__, |
| type, dbm); |
| |
| vif = ath6kl_vif_first(ar); |
| if (!vif) |
| return -EIO; |
| |
| if (!ath6kl_cfg80211_ready(vif)) |
| return -EIO; |
| |
| switch (type) { |
| case NL80211_TX_POWER_AUTOMATIC: |
| return 0; |
| case NL80211_TX_POWER_LIMITED: |
| ar->tx_pwr = 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, vif->fw_vif_idx, dbm); |
| |
| return 0; |
| } |
| |
| static int ath6kl_cfg80211_get_txpower(struct wiphy *wiphy, |
| struct wireless_dev *wdev, |
| int *dbm) |
| { |
| struct ath6kl *ar = (struct ath6kl *)wiphy_priv(wiphy); |
| struct ath6kl_vif *vif; |
| |
| vif = ath6kl_vif_first(ar); |
| if (!vif) |
| return -EIO; |
| |
| if (!ath6kl_cfg80211_ready(vif)) |
| return -EIO; |
| |
| if (test_bit(CONNECTED, &vif->flags)) { |
| ar->tx_pwr = 255; |
| |
| if (ath6kl_wmi_get_tx_pwr_cmd(ar->wmi, vif->fw_vif_idx) != 0) { |
| ath6kl_err("ath6kl_wmi_get_tx_pwr_cmd failed\n"); |
| return -EIO; |
| } |
| |
| wait_event_interruptible_timeout(ar->event_wq, ar->tx_pwr != 255, |
| 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; |
| struct ath6kl_vif *vif = netdev_priv(dev); |
| |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: pmgmt %d, timeout %d\n", |
| __func__, pmgmt, timeout); |
| |
| if (!ath6kl_cfg80211_ready(vif)) |
| return -EIO; |
| |
| if (pmgmt) { |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: rec power\n", __func__); |
| mode.pwr_mode = REC_POWER; |
| } else { |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: max perf\n", __func__); |
| mode.pwr_mode = MAX_PERF_POWER; |
| } |
| |
| if (ath6kl_wmi_powermode_cmd(ar->wmi, vif->fw_vif_idx, |
| mode.pwr_mode) != 0) { |
| ath6kl_err("wmi_powermode_cmd failed\n"); |
| return -EIO; |
| } |
| |
| return 0; |
| } |
| |
| static struct wireless_dev *ath6kl_cfg80211_add_iface(struct wiphy *wiphy, |
| const char *name, |
| unsigned char name_assign_type, |
| enum nl80211_iftype type, |
| struct vif_params *params) |
| { |
| struct ath6kl *ar = wiphy_priv(wiphy); |
| struct wireless_dev *wdev; |
| u8 if_idx, nw_type; |
| |
| if (ar->num_vif == ar->vif_max) { |
| ath6kl_err("Reached maximum number of supported vif\n"); |
| return ERR_PTR(-EINVAL); |
| } |
| |
| if (!ath6kl_is_valid_iftype(ar, type, &if_idx, &nw_type)) { |
| ath6kl_err("Not a supported interface type\n"); |
| return ERR_PTR(-EINVAL); |
| } |
| |
| wdev = ath6kl_interface_add(ar, name, name_assign_type, type, if_idx, nw_type); |
| if (!wdev) |
| return ERR_PTR(-ENOMEM); |
| |
| ar->num_vif++; |
| |
| return wdev; |
| } |
| |
| static int ath6kl_cfg80211_del_iface(struct wiphy *wiphy, |
| struct wireless_dev *wdev) |
| { |
| struct ath6kl *ar = wiphy_priv(wiphy); |
| struct ath6kl_vif *vif = netdev_priv(wdev->netdev); |
| |
| spin_lock_bh(&ar->list_lock); |
| list_del(&vif->list); |
| spin_unlock_bh(&ar->list_lock); |
| |
| ath6kl_cfg80211_vif_stop(vif, test_bit(WMI_READY, &ar->flag)); |
| |
| rtnl_lock(); |
| ath6kl_cfg80211_vif_cleanup(vif); |
| rtnl_unlock(); |
| |
| return 0; |
| } |
| |
| static int ath6kl_cfg80211_change_iface(struct wiphy *wiphy, |
| struct net_device *ndev, |
| enum nl80211_iftype type, |
| struct vif_params *params) |
| { |
| struct ath6kl_vif *vif = netdev_priv(ndev); |
| int i; |
| |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type %u\n", __func__, type); |
| |
| /* |
| * Don't bring up p2p on an interface which is not initialized |
| * for p2p operation where fw does not have capability to switch |
| * dynamically between non-p2p and p2p type interface. |
| */ |
| if (!test_bit(ATH6KL_FW_CAPABILITY_STA_P2PDEV_DUPLEX, |
| vif->ar->fw_capabilities) && |
| (type == NL80211_IFTYPE_P2P_CLIENT || |
| type == NL80211_IFTYPE_P2P_GO)) { |
| if (vif->ar->vif_max == 1) { |
| if (vif->fw_vif_idx != 0) |
| return -EINVAL; |
| else |
| goto set_iface_type; |
| } |
| |
| for (i = vif->ar->max_norm_iface; i < vif->ar->vif_max; i++) { |
| if (i == vif->fw_vif_idx) |
| break; |
| } |
| |
| if (i == vif->ar->vif_max) { |
| ath6kl_err("Invalid interface to bring up P2P\n"); |
| return -EINVAL; |
| } |
| } |
| |
| /* need to clean up enhanced bmiss detection fw state */ |
| ath6kl_cfg80211_sta_bmiss_enhance(vif, false); |
| |
| set_iface_type: |
| switch (type) { |
| case NL80211_IFTYPE_STATION: |
| case NL80211_IFTYPE_P2P_CLIENT: |
| vif->next_mode = INFRA_NETWORK; |
| break; |
| case NL80211_IFTYPE_ADHOC: |
| vif->next_mode = ADHOC_NETWORK; |
| break; |
| case NL80211_IFTYPE_AP: |
| case NL80211_IFTYPE_P2P_GO: |
| vif->next_mode = AP_NETWORK; |
| break; |
| default: |
| ath6kl_err("invalid interface type %u\n", type); |
| return -EOPNOTSUPP; |
| } |
| |
| vif->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); |
| struct ath6kl_vif *vif = netdev_priv(dev); |
| int status; |
| |
| if (!ath6kl_cfg80211_ready(vif)) |
| return -EIO; |
| |
| vif->ssid_len = ibss_param->ssid_len; |
| memcpy(vif->ssid, ibss_param->ssid, vif->ssid_len); |
| |
| if (ibss_param->chandef.chan) |
| vif->ch_hint = ibss_param->chandef.chan->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(vif->req_bssid, 0, sizeof(vif->req_bssid)); |
| if (ibss_param->bssid && !is_broadcast_ether_addr(ibss_param->bssid)) |
| memcpy(vif->req_bssid, ibss_param->bssid, |
| sizeof(vif->req_bssid)); |
| |
| ath6kl_set_wpa_version(vif, 0); |
| |
| status = ath6kl_set_auth_type(vif, NL80211_AUTHTYPE_OPEN_SYSTEM); |
| if (status) |
| return status; |
| |
| if (ibss_param->privacy) { |
| ath6kl_set_cipher(vif, WLAN_CIPHER_SUITE_WEP40, true); |
| ath6kl_set_cipher(vif, WLAN_CIPHER_SUITE_WEP40, false); |
| } else { |
| ath6kl_set_cipher(vif, 0, true); |
| ath6kl_set_cipher(vif, 0, false); |
| } |
| |
| vif->nw_type = vif->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__, |
| vif->auth_mode, vif->dot11_auth_mode, vif->prwise_crypto, |
| vif->prwise_crypto_len, vif->grp_crypto, |
| vif->grp_crypto_len, vif->ch_hint); |
| |
| status = ath6kl_wmi_connect_cmd(ar->wmi, vif->fw_vif_idx, vif->nw_type, |
| vif->dot11_auth_mode, vif->auth_mode, |
| vif->prwise_crypto, |
| vif->prwise_crypto_len, |
| vif->grp_crypto, vif->grp_crypto_len, |
| vif->ssid_len, vif->ssid, |
| vif->req_bssid, vif->ch_hint, |
| ar->connect_ctrl_flags, SUBTYPE_NONE); |
| set_bit(CONNECT_PEND, &vif->flags); |
| |
| return 0; |
| } |
| |
| static int ath6kl_cfg80211_leave_ibss(struct wiphy *wiphy, |
| struct net_device *dev) |
| { |
| struct ath6kl_vif *vif = netdev_priv(dev); |
| |
| if (!ath6kl_cfg80211_ready(vif)) |
| return -EIO; |
| |
| ath6kl_disconnect(vif); |
| memset(vif->ssid, 0, sizeof(vif->ssid)); |
| vif->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, |
| CCKM_KRK_CIPHER_SUITE, |
| WLAN_CIPHER_SUITE_SMS4, |
| }; |
| |
| 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, |
| const u8 *mac, struct station_info *sinfo) |
| { |
| struct ath6kl *ar = ath6kl_priv(dev); |
| struct ath6kl_vif *vif = netdev_priv(dev); |
| long left; |
| bool sgi; |
| s32 rate; |
| int ret; |
| u8 mcs; |
| |
| if (memcmp(mac, vif->bssid, ETH_ALEN) != 0) |
| return -ENOENT; |
| |
| if (down_interruptible(&ar->sem)) |
| return -EBUSY; |
| |
| set_bit(STATS_UPDATE_PEND, &vif->flags); |
| |
| ret = ath6kl_wmi_get_stats_cmd(ar->wmi, vif->fw_vif_idx); |
| |
| if (ret != 0) { |
| up(&ar->sem); |
| return -EIO; |
| } |
| |
| left = wait_event_interruptible_timeout(ar->event_wq, |
| !test_bit(STATS_UPDATE_PEND, |
| &vif->flags), |
| WMI_TIMEOUT); |
| |
| up(&ar->sem); |
| |
| if (left == 0) |
| return -ETIMEDOUT; |
| else if (left < 0) |
| return left; |
| |
| if (vif->target_stats.rx_byte) { |
| sinfo->rx_bytes = vif->target_stats.rx_byte; |
| sinfo->filled |= BIT(NL80211_STA_INFO_RX_BYTES64); |
| sinfo->rx_packets = vif->target_stats.rx_pkt; |
| sinfo->filled |= BIT(NL80211_STA_INFO_RX_PACKETS); |
| } |
| |
| if (vif->target_stats.tx_byte) { |
| sinfo->tx_bytes = vif->target_stats.tx_byte; |
| sinfo->filled |= BIT(NL80211_STA_INFO_TX_BYTES64); |
| sinfo->tx_packets = vif->target_stats.tx_pkt; |
| sinfo->filled |= BIT(NL80211_STA_INFO_TX_PACKETS); |
| } |
| |
| sinfo->signal = vif->target_stats.cs_rssi; |
| sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL); |
| |
| rate = vif->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; |
| sinfo->txrate.bw = RATE_INFO_BW_20; |
| } 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.bw = RATE_INFO_BW_40; |
| sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS; |
| } else { |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, |
| "invalid rate from stats: %d\n", rate); |
| ath6kl_debug_war(ar, ATH6KL_WAR_INVALID_RATE); |
| return 0; |
| } |
| |
| sinfo->filled |= BIT(NL80211_STA_INFO_TX_BITRATE); |
| |
| if (test_bit(CONNECTED, &vif->flags) && |
| test_bit(DTIM_PERIOD_AVAIL, &vif->flags) && |
| vif->nw_type == INFRA_NETWORK) { |
| sinfo->filled |= BIT(NL80211_STA_INFO_BSS_PARAM); |
| sinfo->bss_param.flags = 0; |
| sinfo->bss_param.dtim_period = vif->assoc_bss_dtim_period; |
| sinfo->bss_param.beacon_interval = vif->assoc_bss_beacon_int; |
| } |
| |
| return 0; |
| } |
| |
| static int ath6kl_set_pmksa(struct wiphy *wiphy, struct net_device *netdev, |
| struct cfg80211_pmksa *pmksa) |
| { |
| struct ath6kl *ar = ath6kl_priv(netdev); |
| struct ath6kl_vif *vif = netdev_priv(netdev); |
| |
| return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, 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); |
| struct ath6kl_vif *vif = netdev_priv(netdev); |
| |
| return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, pmksa->bssid, |
| pmksa->pmkid, false); |
| } |
| |
| static int ath6kl_flush_pmksa(struct wiphy *wiphy, struct net_device *netdev) |
| { |
| struct ath6kl *ar = ath6kl_priv(netdev); |
| struct ath6kl_vif *vif = netdev_priv(netdev); |
| |
| if (test_bit(CONNECTED, &vif->flags)) |
| return ath6kl_wmi_setpmkid_cmd(ar->wmi, vif->fw_vif_idx, |
| vif->bssid, NULL, false); |
| return 0; |
| } |
| |
| static int ath6kl_wow_usr(struct ath6kl *ar, struct ath6kl_vif *vif, |
| struct cfg80211_wowlan *wow, u32 *filter) |
| { |
| int ret, pos; |
| u8 mask[WOW_PATTERN_SIZE]; |
| u16 i; |
| |
| /* Configure the patterns that we received from the user. */ |
| for (i = 0; i < wow->n_patterns; i++) { |
| /* |
| * Convert given nl80211 specific mask value to equivalent |
| * driver specific mask value and send it to the chip along |
| * with patterns. For example, If the mask value defined in |
| * struct cfg80211_wowlan is 0xA (equivalent binary is 1010), |
| * then equivalent driver specific mask value is |
| * "0xFF 0x00 0xFF 0x00". |
| */ |
| memset(&mask, 0, sizeof(mask)); |
| for (pos = 0; pos < wow->patterns[i].pattern_len; pos++) { |
| if (wow->patterns[i].mask[pos / 8] & (0x1 << (pos % 8))) |
| mask[pos] = 0xFF; |
| } |
| /* |
| * Note: Pattern's offset is not passed as part of wowlan |
| * parameter from CFG layer. So it's always passed as ZERO |
| * to the firmware. It means, given WOW patterns are always |
| * matched from the first byte of received pkt in the firmware. |
| */ |
| ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, |
| vif->fw_vif_idx, WOW_LIST_ID, |
| wow->patterns[i].pattern_len, |
| 0 /* pattern offset */, |
| wow->patterns[i].pattern, mask); |
| if (ret) |
| return ret; |
| } |
| |
| if (wow->disconnect) |
| *filter |= WOW_FILTER_OPTION_NWK_DISASSOC; |
| |
| if (wow->magic_pkt) |
| *filter |= WOW_FILTER_OPTION_MAGIC_PACKET; |
| |
| if (wow->gtk_rekey_failure) |
| *filter |= WOW_FILTER_OPTION_GTK_ERROR; |
| |
| if (wow->eap_identity_req) |
| *filter |= WOW_FILTER_OPTION_EAP_REQ; |
| |
| if (wow->four_way_handshake) |
| *filter |= WOW_FILTER_OPTION_8021X_4WAYHS; |
| |
| return 0; |
| } |
| |
| static int ath6kl_wow_ap(struct ath6kl *ar, struct ath6kl_vif *vif) |
| { |
| static const u8 unicst_pattern[] = { 0x00, 0x00, 0x00, |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 0x00, 0x08 }; |
| static const u8 unicst_mask[] = { 0x01, 0x00, 0x00, |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 0x00, 0x7f }; |
| u8 unicst_offset = 0; |
| static const u8 arp_pattern[] = { 0x08, 0x06 }; |
| static const u8 arp_mask[] = { 0xff, 0xff }; |
| u8 arp_offset = 20; |
| static const u8 discvr_pattern[] = { 0xe0, 0x00, 0x00, 0xf8 }; |
| static const u8 discvr_mask[] = { 0xf0, 0x00, 0x00, 0xf8 }; |
| u8 discvr_offset = 38; |
| static const u8 dhcp_pattern[] = { 0xff, 0xff, 0xff, 0xff, |
| 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x08, 0x00, |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x43 /* port 67 */ }; |
| static const u8 dhcp_mask[] = { 0xff, 0xff, 0xff, 0xff, |
| 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, |
| 0x00, 0x00, 0x00, 0x00, 0xff, 0xff /* port 67 */ }; |
| u8 dhcp_offset = 0; |
| int ret; |
| |
| /* Setup unicast IP, EAPOL-like and ARP pkt pattern */ |
| ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, |
| vif->fw_vif_idx, WOW_LIST_ID, |
| sizeof(unicst_pattern), unicst_offset, |
| unicst_pattern, unicst_mask); |
| if (ret) { |
| ath6kl_err("failed to add WOW unicast IP pattern\n"); |
| return ret; |
| } |
| |
| /* Setup all ARP pkt pattern */ |
| ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, |
| vif->fw_vif_idx, WOW_LIST_ID, |
| sizeof(arp_pattern), arp_offset, |
| arp_pattern, arp_mask); |
| if (ret) { |
| ath6kl_err("failed to add WOW ARP pattern\n"); |
| return ret; |
| } |
| |
| /* |
| * Setup multicast pattern for mDNS 224.0.0.251, |
| * SSDP 239.255.255.250 and LLMNR 224.0.0.252 |
| */ |
| ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, |
| vif->fw_vif_idx, WOW_LIST_ID, |
| sizeof(discvr_pattern), discvr_offset, |
| discvr_pattern, discvr_mask); |
| if (ret) { |
| ath6kl_err("failed to add WOW mDNS/SSDP/LLMNR pattern\n"); |
| return ret; |
| } |
| |
| /* Setup all DHCP broadcast pkt pattern */ |
| ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, |
| vif->fw_vif_idx, WOW_LIST_ID, |
| sizeof(dhcp_pattern), dhcp_offset, |
| dhcp_pattern, dhcp_mask); |
| if (ret) { |
| ath6kl_err("failed to add WOW DHCP broadcast pattern\n"); |
| return ret; |
| } |
| |
| return 0; |
| } |
| |
| static int ath6kl_wow_sta(struct ath6kl *ar, struct ath6kl_vif *vif) |
| { |
| struct net_device *ndev = vif->ndev; |
| static const u8 discvr_pattern[] = { 0xe0, 0x00, 0x00, 0xf8 }; |
| static const u8 discvr_mask[] = { 0xf0, 0x00, 0x00, 0xf8 }; |
| u8 discvr_offset = 38; |
| u8 mac_mask[ETH_ALEN]; |
| int ret; |
| |
| /* Setup unicast pkt pattern */ |
| eth_broadcast_addr(mac_mask); |
| ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, |
| vif->fw_vif_idx, WOW_LIST_ID, |
| ETH_ALEN, 0, ndev->dev_addr, |
| mac_mask); |
| if (ret) { |
| ath6kl_err("failed to add WOW unicast pattern\n"); |
| return ret; |
| } |
| |
| /* |
| * Setup multicast pattern for mDNS 224.0.0.251, |
| * SSDP 239.255.255.250 and LLMNR 224.0.0.252 |
| */ |
| if ((ndev->flags & IFF_ALLMULTI) || |
| (ndev->flags & IFF_MULTICAST && netdev_mc_count(ndev) > 0)) { |
| ret = ath6kl_wmi_add_wow_pattern_cmd(ar->wmi, |
| vif->fw_vif_idx, WOW_LIST_ID, |
| sizeof(discvr_pattern), discvr_offset, |
| discvr_pattern, discvr_mask); |
| if (ret) { |
| ath6kl_err("failed to add WOW mDNS/SSDP/LLMNR pattern\n"); |
| return ret; |
| } |
| } |
| |
| return 0; |
| } |
| |
| static int is_hsleep_mode_procsed(struct ath6kl_vif *vif) |
| { |
| return test_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags); |
| } |
| |
| static bool is_ctrl_ep_empty(struct ath6kl *ar) |
| { |
| return !ar->tx_pending[ar->ctrl_ep]; |
| } |
| |
| static int ath6kl_cfg80211_host_sleep(struct ath6kl *ar, struct ath6kl_vif *vif) |
| { |
| int ret, left; |
| |
| clear_bit(HOST_SLEEP_MODE_CMD_PROCESSED, &vif->flags); |
| |
| ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx, |
| ATH6KL_HOST_MODE_ASLEEP); |
| if (ret) |
| return ret; |
| |
| left = wait_event_interruptible_timeout(ar->event_wq, |
| is_hsleep_mode_procsed(vif), |
| WMI_TIMEOUT); |
| if (left == 0) { |
| ath6kl_warn("timeout, didn't get host sleep cmd processed event\n"); |
| ret = -ETIMEDOUT; |
| } else if (left < 0) { |
| ath6kl_warn("error while waiting for host sleep cmd processed event %d\n", |
| left); |
| ret = left; |
| } |
| |
| if (ar->tx_pending[ar->ctrl_ep]) { |
| left = wait_event_interruptible_timeout(ar->event_wq, |
| is_ctrl_ep_empty(ar), |
| WMI_TIMEOUT); |
| if (left == 0) { |
| ath6kl_warn("clear wmi ctrl data timeout\n"); |
| ret = -ETIMEDOUT; |
| } else if (left < 0) { |
| ath6kl_warn("clear wmi ctrl data failed: %d\n", left); |
| ret = left; |
| } |
| } |
| |
| return ret; |
| } |
| |
| static int ath6kl_wow_suspend_vif(struct ath6kl_vif *vif, |
| struct cfg80211_wowlan *wow, u32 *filter) |
| { |
| struct ath6kl *ar = vif->ar; |
| struct in_device *in_dev; |
| struct in_ifaddr *ifa; |
| int ret; |
| u16 i, bmiss_time; |
| __be32 ips[MAX_IP_ADDRS]; |
| u8 index = 0; |
| |
| if (!test_bit(NETDEV_MCAST_ALL_ON, &vif->flags) && |
| test_bit(ATH6KL_FW_CAPABILITY_WOW_MULTICAST_FILTER, |
| ar->fw_capabilities)) { |
| ret = ath6kl_wmi_mcast_filter_cmd(vif->ar->wmi, |
| vif->fw_vif_idx, false); |
| if (ret) |
| return ret; |
| } |
| |
| /* Clear existing WOW patterns */ |
| for (i = 0; i < WOW_MAX_FILTERS_PER_LIST; i++) |
| ath6kl_wmi_del_wow_pattern_cmd(ar->wmi, vif->fw_vif_idx, |
| WOW_LIST_ID, i); |
| |
| /* |
| * Skip the default WOW pattern configuration |
| * if the driver receives any WOW patterns from |
| * the user. |
| */ |
| if (wow) |
| ret = ath6kl_wow_usr(ar, vif, wow, filter); |
| else if (vif->nw_type == AP_NETWORK) |
| ret = ath6kl_wow_ap(ar, vif); |
| else |
| ret = ath6kl_wow_sta(ar, vif); |
| |
| if (ret) |
| return ret; |
| |
| netif_stop_queue(vif->ndev); |
| |
| if (vif->nw_type != AP_NETWORK) { |
| ret = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx, |
| ATH6KL_MAX_WOW_LISTEN_INTL, |
| 0); |
| if (ret) |
| return ret; |
| |
| /* Set listen interval x 15 times as bmiss time */ |
| bmiss_time = ATH6KL_MAX_WOW_LISTEN_INTL * 15; |
| if (bmiss_time > ATH6KL_MAX_BMISS_TIME) |
| bmiss_time = ATH6KL_MAX_BMISS_TIME; |
| |
| ret = ath6kl_wmi_bmisstime_cmd(ar->wmi, vif->fw_vif_idx, |
| bmiss_time, 0); |
| if (ret) |
| return ret; |
| |
| ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, |
| 0xFFFF, 0, 0xFFFF, 0, 0, 0, |
| 0, 0, 0, 0); |
| if (ret) |
| return ret; |
| } |
| |
| /* Setup own IP addr for ARP agent. */ |
| in_dev = __in_dev_get_rtnl(vif->ndev); |
| if (!in_dev) |
| return 0; |
| |
| ifa = in_dev->ifa_list; |
| memset(&ips, 0, sizeof(ips)); |
| |
| /* Configure IP addr only if IP address count < MAX_IP_ADDRS */ |
| while (index < MAX_IP_ADDRS && ifa) { |
| ips[index] = ifa->ifa_local; |
| ifa = ifa->ifa_next; |
| index++; |
| } |
| |
| if (ifa) { |
| ath6kl_err("total IP addr count is exceeding fw limit\n"); |
| return -EINVAL; |
| } |
| |
| ret = ath6kl_wmi_set_ip_cmd(ar->wmi, vif->fw_vif_idx, ips[0], ips[1]); |
| if (ret) { |
| ath6kl_err("fail to setup ip for arp agent\n"); |
| return ret; |
| } |
| |
| return ret; |
| } |
| |
| static int ath6kl_wow_suspend(struct ath6kl *ar, struct cfg80211_wowlan *wow) |
| { |
| struct ath6kl_vif *first_vif, *vif; |
| int ret = 0; |
| u32 filter = 0; |
| bool connected = false; |
| |
| /* enter / leave wow suspend on first vif always */ |
| first_vif = ath6kl_vif_first(ar); |
| if (WARN_ON(!first_vif) || |
| !ath6kl_cfg80211_ready(first_vif)) |
| return -EIO; |
| |
| if (wow && (wow->n_patterns > WOW_MAX_FILTERS_PER_LIST)) |
| return -EINVAL; |
| |
| /* install filters for each connected vif */ |
| spin_lock_bh(&ar->list_lock); |
| list_for_each_entry(vif, &ar->vif_list, list) { |
| if (!test_bit(CONNECTED, &vif->flags) || |
| !ath6kl_cfg80211_ready(vif)) |
| continue; |
| connected = true; |
| |
| ret = ath6kl_wow_suspend_vif(vif, wow, &filter); |
| if (ret) |
| break; |
| } |
| spin_unlock_bh(&ar->list_lock); |
| |
| if (!connected) |
| return -ENOTCONN; |
| else if (ret) |
| return ret; |
| |
| ar->state = ATH6KL_STATE_SUSPENDING; |
| |
| ret = ath6kl_wmi_set_wow_mode_cmd(ar->wmi, first_vif->fw_vif_idx, |
| ATH6KL_WOW_MODE_ENABLE, |
| filter, |
| WOW_HOST_REQ_DELAY); |
| if (ret) |
| return ret; |
| |
| return ath6kl_cfg80211_host_sleep(ar, first_vif); |
| } |
| |
| static int ath6kl_wow_resume_vif(struct ath6kl_vif *vif) |
| { |
| struct ath6kl *ar = vif->ar; |
| int ret; |
| |
| if (vif->nw_type != AP_NETWORK) { |
| ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, |
| 0, 0, 0, 0, 0, 0, 3, 0, 0, 0); |
| if (ret) |
| return ret; |
| |
| ret = ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx, |
| vif->listen_intvl_t, 0); |
| if (ret) |
| return ret; |
| |
| ret = ath6kl_wmi_bmisstime_cmd(ar->wmi, vif->fw_vif_idx, |
| vif->bmiss_time_t, 0); |
| if (ret) |
| return ret; |
| } |
| |
| if (!test_bit(NETDEV_MCAST_ALL_OFF, &vif->flags) && |
| test_bit(ATH6KL_FW_CAPABILITY_WOW_MULTICAST_FILTER, |
| ar->fw_capabilities)) { |
| ret = ath6kl_wmi_mcast_filter_cmd(vif->ar->wmi, |
| vif->fw_vif_idx, true); |
| if (ret) |
| return ret; |
| } |
| |
| netif_wake_queue(vif->ndev); |
| |
| return 0; |
| } |
| |
| static int ath6kl_wow_resume(struct ath6kl *ar) |
| { |
| struct ath6kl_vif *vif; |
| int ret; |
| |
| vif = ath6kl_vif_first(ar); |
| if (WARN_ON(!vif) || |
| !ath6kl_cfg80211_ready(vif)) |
| return -EIO; |
| |
| ar->state = ATH6KL_STATE_RESUMING; |
| |
| ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx, |
| ATH6KL_HOST_MODE_AWAKE); |
| if (ret) { |
| ath6kl_warn("Failed to configure host sleep mode for wow resume: %d\n", |
| ret); |
| goto cleanup; |
| } |
| |
| spin_lock_bh(&ar->list_lock); |
| list_for_each_entry(vif, &ar->vif_list, list) { |
| if (!test_bit(CONNECTED, &vif->flags) || |
| !ath6kl_cfg80211_ready(vif)) |
| continue; |
| ret = ath6kl_wow_resume_vif(vif); |
| if (ret) |
| break; |
| } |
| spin_unlock_bh(&ar->list_lock); |
| |
| if (ret) |
| goto cleanup; |
| |
| ar->state = ATH6KL_STATE_ON; |
| return 0; |
| |
| cleanup: |
| ar->state = ATH6KL_STATE_WOW; |
| return ret; |
| } |
| |
| static int ath6kl_cfg80211_deepsleep_suspend(struct ath6kl *ar) |
| { |
| struct ath6kl_vif *vif; |
| int ret; |
| |
| vif = ath6kl_vif_first(ar); |
| if (!vif) |
| return -EIO; |
| |
| if (!test_bit(WMI_READY, &ar->flag)) { |
| ath6kl_err("deepsleep failed as wmi is not ready\n"); |
| return -EIO; |
| } |
| |
| ath6kl_cfg80211_stop_all(ar); |
| |
| /* Save the current power mode before enabling power save */ |
| ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode; |
| |
| ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER); |
| if (ret) |
| return ret; |
| |
| /* Disable WOW mode */ |
| ret = ath6kl_wmi_set_wow_mode_cmd(ar->wmi, vif->fw_vif_idx, |
| ATH6KL_WOW_MODE_DISABLE, |
| 0, 0); |
| if (ret) |
| return ret; |
| |
| /* Flush all non control pkts in TX path */ |
| ath6kl_tx_data_cleanup(ar); |
| |
| ret = ath6kl_cfg80211_host_sleep(ar, vif); |
| if (ret) |
| return ret; |
| |
| return 0; |
| } |
| |
| static int ath6kl_cfg80211_deepsleep_resume(struct ath6kl *ar) |
| { |
| struct ath6kl_vif *vif; |
| int ret; |
| |
| vif = ath6kl_vif_first(ar); |
| |
| if (!vif) |
| return -EIO; |
| |
| if (ar->wmi->pwr_mode != ar->wmi->saved_pwr_mode) { |
| ret = ath6kl_wmi_powermode_cmd(ar->wmi, 0, |
| ar->wmi->saved_pwr_mode); |
| if (ret) |
| return ret; |
| } |
| |
| ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx, |
| ATH6KL_HOST_MODE_AWAKE); |
| if (ret) |
| return ret; |
| |
| ar->state = ATH6KL_STATE_ON; |
| |
| /* Reset scan parameter to default values */ |
| ret = ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, |
| 0, 0, 0, 0, 0, 0, 3, 0, 0, 0); |
| if (ret) |
| return ret; |
| |
| return 0; |
| } |
| |
| int ath6kl_cfg80211_suspend(struct ath6kl *ar, |
| enum ath6kl_cfg_suspend_mode mode, |
| struct cfg80211_wowlan *wow) |
| { |
| struct ath6kl_vif *vif; |
| enum ath6kl_state prev_state; |
| int ret; |
| |
| switch (mode) { |
| case ATH6KL_CFG_SUSPEND_WOW: |
| |
| ath6kl_dbg(ATH6KL_DBG_SUSPEND, "wow mode suspend\n"); |
| |
| /* Flush all non control pkts in TX path */ |
| ath6kl_tx_data_cleanup(ar); |
| |
| prev_state = ar->state; |
| |
| ret = ath6kl_wow_suspend(ar, wow); |
| if (ret) { |
| ar->state = prev_state; |
| return ret; |
| } |
| |
| ar->state = ATH6KL_STATE_WOW; |
| break; |
| |
| case ATH6KL_CFG_SUSPEND_DEEPSLEEP: |
| |
| ath6kl_dbg(ATH6KL_DBG_SUSPEND, "deep sleep suspend\n"); |
| |
| ret = ath6kl_cfg80211_deepsleep_suspend(ar); |
| if (ret) { |
| ath6kl_err("deepsleep suspend failed: %d\n", ret); |
| return ret; |
| } |
| |
| ar->state = ATH6KL_STATE_DEEPSLEEP; |
| |
| break; |
| |
| case ATH6KL_CFG_SUSPEND_CUTPOWER: |
| |
| ath6kl_cfg80211_stop_all(ar); |
| |
| if (ar->state == ATH6KL_STATE_OFF) { |
| ath6kl_dbg(ATH6KL_DBG_SUSPEND, |
| "suspend hw off, no action for cutpower\n"); |
| break; |
| } |
| |
| ath6kl_dbg(ATH6KL_DBG_SUSPEND, "suspend cutting power\n"); |
| |
| ret = ath6kl_init_hw_stop(ar); |
| if (ret) { |
| ath6kl_warn("failed to stop hw during suspend: %d\n", |
| ret); |
| } |
| |
| ar->state = ATH6KL_STATE_CUTPOWER; |
| |
| break; |
| |
| default: |
| break; |
| } |
| |
| list_for_each_entry(vif, &ar->vif_list, list) |
| ath6kl_cfg80211_scan_complete_event(vif, true); |
| |
| return 0; |
| } |
| EXPORT_SYMBOL(ath6kl_cfg80211_suspend); |
| |
| int ath6kl_cfg80211_resume(struct ath6kl *ar) |
| { |
| int ret; |
| |
| switch (ar->state) { |
| case ATH6KL_STATE_WOW: |
| ath6kl_dbg(ATH6KL_DBG_SUSPEND, "wow mode resume\n"); |
| |
| ret = ath6kl_wow_resume(ar); |
| if (ret) { |
| ath6kl_warn("wow mode resume failed: %d\n", ret); |
| return ret; |
| } |
| |
| break; |
| |
| case ATH6KL_STATE_DEEPSLEEP: |
| ath6kl_dbg(ATH6KL_DBG_SUSPEND, "deep sleep resume\n"); |
| |
| ret = ath6kl_cfg80211_deepsleep_resume(ar); |
| if (ret) { |
| ath6kl_warn("deep sleep resume failed: %d\n", ret); |
| return ret; |
| } |
| break; |
| |
| case ATH6KL_STATE_CUTPOWER: |
| ath6kl_dbg(ATH6KL_DBG_SUSPEND, "resume restoring power\n"); |
| |
| ret = ath6kl_init_hw_start(ar); |
| if (ret) { |
| ath6kl_warn("Failed to boot hw in resume: %d\n", ret); |
| return ret; |
| } |
| break; |
| |
| default: |
| break; |
| } |
| |
| return 0; |
| } |
| EXPORT_SYMBOL(ath6kl_cfg80211_resume); |
| |
| #ifdef CONFIG_PM |
| |
| /* hif layer decides what suspend mode to use */ |
| static int __ath6kl_cfg80211_suspend(struct wiphy *wiphy, |
| struct cfg80211_wowlan *wow) |
| { |
| struct ath6kl *ar = wiphy_priv(wiphy); |
| |
| ath6kl_recovery_suspend(ar); |
| |
| return ath6kl_hif_suspend(ar, wow); |
| } |
| |
| static int __ath6kl_cfg80211_resume(struct wiphy *wiphy) |
| { |
| struct ath6kl *ar = wiphy_priv(wiphy); |
| int err; |
| |
| err = ath6kl_hif_resume(ar); |
| if (err) |
| return err; |
| |
| ath6kl_recovery_resume(ar); |
| |
| return 0; |
| } |
| |
| /* |
| * FIXME: WOW suspend mode is selected if the host sdio controller supports |
| * both sdio irq wake up and keep power. The target pulls sdio data line to |
| * wake up the host when WOW pattern matches. This causes sdio irq handler |
| * is being called in the host side which internally hits ath6kl's RX path. |
| * |
| * Since sdio interrupt is not disabled, RX path executes even before |
| * the host executes the actual resume operation from PM module. |
| * |
| * In the current scenario, WOW resume should happen before start processing |
| * any data from the target. So It's required to perform WOW resume in RX path. |
| * Ideally we should perform WOW resume only in the actual platform |
| * resume path. This area needs bit rework to avoid WOW resume in RX path. |
| * |
| * ath6kl_check_wow_status() is called from ath6kl_rx(). |
| */ |
| void ath6kl_check_wow_status(struct ath6kl *ar) |
| { |
| if (ar->state == ATH6KL_STATE_SUSPENDING) |
| return; |
| |
| if (ar->state == ATH6KL_STATE_WOW) |
| ath6kl_cfg80211_resume(ar); |
| } |
| |
| #else |
| |
| void ath6kl_check_wow_status(struct ath6kl *ar) |
| { |
| } |
| #endif |
| |
| static int ath6kl_set_htcap(struct ath6kl_vif *vif, enum nl80211_band band, |
| bool ht_enable) |
| { |
| struct ath6kl_htcap *htcap = &vif->htcap[band]; |
| |
| if (htcap->ht_enable == ht_enable) |
| return 0; |
| |
| if (ht_enable) { |
| /* Set default ht capabilities */ |
| htcap->ht_enable = true; |
| htcap->cap_info = (band == NL80211_BAND_2GHZ) ? |
| ath6kl_g_htcap : ath6kl_a_htcap; |
| htcap->ampdu_factor = IEEE80211_HT_MAX_AMPDU_16K; |
| } else /* Disable ht */ |
| memset(htcap, 0, sizeof(*htcap)); |
| |
| return ath6kl_wmi_set_htcap_cmd(vif->ar->wmi, vif->fw_vif_idx, |
| band, htcap); |
| } |
| |
| static int ath6kl_restore_htcap(struct ath6kl_vif *vif) |
| { |
| struct wiphy *wiphy = vif->ar->wiphy; |
| int band, ret = 0; |
| |
| for (band = 0; band < NUM_NL80211_BANDS; band++) { |
| if (!wiphy->bands[band]) |
| continue; |
| |
| ret = ath6kl_set_htcap(vif, band, |
| wiphy->bands[band]->ht_cap.ht_supported); |
| if (ret) |
| return ret; |
| } |
| |
| return ret; |
| } |
| |
| static bool ath6kl_is_p2p_ie(const u8 *pos) |
| { |
| return pos[0] == WLAN_EID_VENDOR_SPECIFIC && pos[1] >= 4 && |
| pos[2] == 0x50 && pos[3] == 0x6f && |
| pos[4] == 0x9a && pos[5] == 0x09; |
| } |
| |
| static int ath6kl_set_ap_probe_resp_ies(struct ath6kl_vif *vif, |
| const u8 *ies, size_t ies_len) |
| { |
| struct ath6kl *ar = vif->ar; |
| const u8 *pos; |
| u8 *buf = NULL; |
| size_t len = 0; |
| int ret; |
| |
| /* |
| * Filter out P2P IE(s) since they will be included depending on |
| * the Probe Request frame in ath6kl_send_go_probe_resp(). |
| */ |
| |
| if (ies && ies_len) { |
| buf = kmalloc(ies_len, GFP_KERNEL); |
| if (buf == NULL) |
| return -ENOMEM; |
| pos = ies; |
| while (pos + 1 < ies + ies_len) { |
| if (pos + 2 + pos[1] > ies + ies_len) |
| break; |
| if (!ath6kl_is_p2p_ie(pos)) { |
| memcpy(buf + len, pos, 2 + pos[1]); |
| len += 2 + pos[1]; |
| } |
| pos += 2 + pos[1]; |
| } |
| } |
| |
| ret = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, |
| WMI_FRAME_PROBE_RESP, buf, len); |
| kfree(buf); |
| return ret; |
| } |
| |
| static int ath6kl_set_ies(struct ath6kl_vif *vif, |
| struct cfg80211_beacon_data *info) |
| { |
| struct ath6kl *ar = vif->ar; |
| int res; |
| |
| /* this also clears IE in fw if it's not set */ |
| res = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, |
| WMI_FRAME_BEACON, |
| info->beacon_ies, |
| info->beacon_ies_len); |
| if (res) |
| return res; |
| |
| /* this also clears IE in fw if it's not set */ |
| res = ath6kl_set_ap_probe_resp_ies(vif, info->proberesp_ies, |
| info->proberesp_ies_len); |
| if (res) |
| return res; |
| |
| /* this also clears IE in fw if it's not set */ |
| res = ath6kl_wmi_set_appie_cmd(ar->wmi, vif->fw_vif_idx, |
| WMI_FRAME_ASSOC_RESP, |
| info->assocresp_ies, |
| info->assocresp_ies_len); |
| if (res) |
| return res; |
| |
| return 0; |
| } |
| |
| static int ath6kl_get_rsn_capab(struct cfg80211_beacon_data *beacon, |
| u8 *rsn_capab) |
| { |
| const u8 *rsn_ie; |
| size_t rsn_ie_len; |
| u16 cnt; |
| |
| if (!beacon->tail) |
| return -EINVAL; |
| |
| rsn_ie = cfg80211_find_ie(WLAN_EID_RSN, beacon->tail, beacon->tail_len); |
| if (!rsn_ie) |
| return -EINVAL; |
| |
| rsn_ie_len = *(rsn_ie + 1); |
| /* skip element id and length */ |
| rsn_ie += 2; |
| |
| /* skip version */ |
| if (rsn_ie_len < 2) |
| return -EINVAL; |
| rsn_ie += 2; |
| rsn_ie_len -= 2; |
| |
| /* skip group cipher suite */ |
| if (rsn_ie_len < 4) |
| return 0; |
| rsn_ie += 4; |
| rsn_ie_len -= 4; |
| |
| /* skip pairwise cipher suite */ |
| if (rsn_ie_len < 2) |
| return 0; |
| cnt = get_unaligned_le16(rsn_ie); |
| rsn_ie += (2 + cnt * 4); |
| rsn_ie_len -= (2 + cnt * 4); |
| |
| /* skip akm suite */ |
| if (rsn_ie_len < 2) |
| return 0; |
| cnt = get_unaligned_le16(rsn_ie); |
| rsn_ie += (2 + cnt * 4); |
| rsn_ie_len -= (2 + cnt * 4); |
| |
| if (rsn_ie_len < 2) |
| return 0; |
| |
| memcpy(rsn_capab, rsn_ie, 2); |
| |
| return 0; |
| } |
| |
| static int ath6kl_start_ap(struct wiphy *wiphy, struct net_device *dev, |
| struct cfg80211_ap_settings *info) |
| { |
| struct ath6kl *ar = ath6kl_priv(dev); |
| struct ath6kl_vif *vif = netdev_priv(dev); |
| struct ieee80211_mgmt *mgmt; |
| bool hidden = false; |
| u8 *ies; |
| int ies_len; |
| struct wmi_connect_cmd p; |
| int res; |
| int i, ret; |
| u16 rsn_capab = 0; |
| int inactivity_timeout = 0; |
| |
| ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s:\n", __func__); |
| |
| if (!ath6kl_cfg80211_ready(vif)) |
| return -EIO; |
| |
| if (vif->next_mode != AP_NETWORK) |
| return -EOPNOTSUPP; |
| |
| res = ath6kl_set_ies(vif, &info->beacon); |
| |
| ar->ap_mode_bkey.valid = false; |
| |
| ret = ath6kl_wmi_ap_set_beacon_intvl_cmd(ar->wmi, vif->fw_vif_idx, |
| info->beacon_interval); |
| |
| if (ret) |
| ath6kl_warn("Failed to set beacon interval: %d\n", ret); |
| |
| ret = ath6kl_wmi_ap_set_dtim_cmd(ar->wmi, vif->fw_vif_idx, |
| info->dtim_period); |
| |
| /* ignore error, just print a warning and continue normally */ |
| if (ret) |
| ath6kl_warn("Failed to set dtim_period in beacon: %d\n", ret); |
| |
| if (info->beacon.head == NULL) |
| return -EINVAL; |
| mgmt = (struct ieee80211_mgmt *) info->beacon.head; |
| ies = mgmt->u.beacon.variable; |
| if (ies > info->beacon.head + info->beacon.head_len) |
| return -EINVAL; |
| ies_len = info->beacon.head + info->beacon.head_len - ies; |
| |
| if (info->ssid == NULL) |
| return -EINVAL; |
| memcpy(vif->ssid, info->ssid, info->ssid_len); |
| vif->ssid_len = info->ssid_len; |
| if (info->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE) |
| hidden = true; |
| |
| res = ath6kl_wmi_ap_hidden_ssid(ar->wmi, vif->fw_vif_idx, hidden); |
| if (res) |
| return res; |
| |
| ret = ath6kl_set_auth_type(vif, info->auth_type); |
| if (ret) |
| return ret; |
| |
| memset(&p, 0, sizeof(p)); |
| |
| for (i = 0; i < info->crypto.n_akm_suites; i++) { |
| switch (info->crypto.akm_suites[i]) { |
| case WLAN_AKM_SUITE_8021X: |
| if (info->crypto.wpa_versions & NL80211_WPA_VERSION_1) |
| p.auth_mode |= WPA_AUTH; |
| if (info->crypto.wpa_versions & NL80211_WPA_VERSION_2) |
| p.auth_mode |= WPA2_AUTH; |
| break; |
| case WLAN_AKM_SUITE_PSK: |
| if (info->crypto.wpa_versions & NL80211_WPA_VERSION_1) |
| p.auth_mode |= WPA_PSK_AUTH; |
| if (info->crypto.wpa_versions & NL80211_WPA_VERSION_2) |
| p.auth_mode |= WPA2_PSK_AUTH; |
| break; |
| } |
| } |
| if (p.auth_mode == 0) |
| p.auth_mode = NONE_AUTH; |
| vif->auth_mode = p.auth_mode; |
| |
| for (i = 0; i < info->crypto.n_ciphers_pairwise; i++) { |
| switch (info->crypto.ciphers_pairwise[i]) { |
| case WLAN_CIPHER_SUITE_WEP40: |
| case WLAN_CIPHER_SUITE_WEP104: |
| p.prwise_crypto_type |= WEP_CRYPT; |
| break; |
| case WLAN_CIPHER_SUITE_TKIP: |
| p.prwise_crypto_type |= TKIP_CRYPT; |
| break; |
| case WLAN_CIPHER_SUITE_CCMP: |
| p.prwise_crypto_type |= AES_CRYPT; |
| break; |
| case WLAN_CIPHER_SUITE_SMS4: |
| p.prwise_crypto_type |= WAPI_CRYPT; |
| break; |
| } |
| } |
| if (p.prwise_crypto_type == 0) { |
| p.prwise_crypto_type = NONE_CRYPT; |
| ath6kl_set_cipher(vif, 0, true); |
| } else if (info->crypto.n_ciphers_pairwise == 1) { |
| ath6kl_set_cipher(vif, info->crypto.ciphers_pairwise[0], true); |
| } |
| |
| switch (info->crypto.cipher_group) { |
| case WLAN_CIPHER_SUITE_WEP40: |
| case WLAN_CIPHER_SUITE_WEP104: |
| p.grp_crypto_type = WEP_CRYPT; |
| break; |
| case WLAN_CIPHER_SUITE_TKIP: |
| p.grp_crypto_type = TKIP_CRYPT; |
| break; |
| case WLAN_CIPHER_SUITE_CCMP: |
| p.grp_crypto_type = AES_CRYPT; |
| break; |
| case WLAN_CIPHER_SUITE_SMS4: |
| p.grp_crypto_type = WAPI_CRYPT; |
| break; |
| default: |
| p.grp_crypto_type = NONE_CRYPT; |
| break; |
| } |
| ath6kl_set_cipher(vif, info->crypto.cipher_group, false); |
| |
| p.nw_type = AP_NETWORK; |
| vif->nw_type = vif->next_mode; |
| |
| p.ssid_len = vif->ssid_len; |
| memcpy(p.ssid, vif->ssid, vif->ssid_len); |
| p.dot11_auth_mode = vif->dot11_auth_mode; |
| p.ch = cpu_to_le16(info->chandef.chan->center_freq); |
| |
| /* Enable uAPSD support by default */ |
| res = ath6kl_wmi_ap_set_apsd(ar->wmi, vif->fw_vif_idx, true); |
| if (res < 0) |
| return res; |
| |
| if (vif->wdev.iftype == NL80211_IFTYPE_P2P_GO) { |
| p.nw_subtype = SUBTYPE_P2PGO; |
| } else { |
| /* |
| * Due to firmware limitation, it is not possible to |
| * do P2P mgmt operations in AP mode |
| */ |
| p.nw_subtype = SUBTYPE_NONE; |
| } |
| |
| if (info->inactivity_timeout) { |
| inactivity_timeout = info->inactivity_timeout; |
| |
| if (test_bit(ATH6KL_FW_CAPABILITY_AP_INACTIVITY_MINS, |
| ar->fw_capabilities)) |
| inactivity_timeout = DIV_ROUND_UP(inactivity_timeout, |
| 60); |
| |
| res = ath6kl_wmi_set_inact_period(ar->wmi, vif->fw_vif_idx, |
| inactivity_timeout); |
| if (res < 0) |
| return res; |
| } |
| |
| if (ath6kl_set_htcap(vif, info->chandef.chan->band, |
| cfg80211_get_chandef_type(&info->chandef) |
| != NL80211_CHAN_NO_HT)) |
| return -EIO; |
| |
| /* |
| * Get the PTKSA replay counter in the RSN IE. Supplicant |
| * will use the RSN IE in M3 message and firmware has to |
| * advertise the same in beacon/probe response. Send |
| * the complete RSN IE capability field to firmware |
| */ |
| if (!ath6kl_get_rsn_capab(&info->beacon, (u8 *) &rsn_capab) && |
| test_bit(ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE, |
| ar->fw_capabilities)) { |
| res = ath6kl_wmi_set_ie_cmd(ar->wmi, vif->fw_vif_idx, |
| WLAN_EID_RSN, WMI_RSN_IE_CAPB, |
| (const u8 *) &rsn_capab, |
| sizeof(rsn_capab)); |
| vif->rsn_capab = rsn_capab; |
| if (res < 0) |
| return res; |
| } |
| |
| memcpy(&vif->profile, &p, sizeof(p)); |
| res = ath6kl_wmi_ap_profile_commit(ar->wmi, vif->fw_vif_idx, &p); |
| if (res < 0) |
| return res; |
| |
| return 0; |
| } |
| |
| static int ath6kl_change_beacon(struct wiphy *wiphy, struct net_device *dev, |
| struct cfg80211_beacon_data *beacon) |
| { |
| struct ath6kl_vif *vif = netdev_priv(dev); |
| |
| if (!ath6kl_cfg80211_ready(vif)) |
| return -EIO; |
| |
| if (vif->next_mode != AP_NETWORK) |
| return -EOPNOTSUPP; |
| |
| return ath6kl_set_ies(vif, beacon); |
| } |
| |
| static int ath6kl_stop_ap(struct wiphy *wiphy, struct net_device *dev) |
| { |
| struct ath6kl *ar = ath6kl_priv(dev); |
| struct ath6kl_vif *vif = netdev_priv(dev); |
| |
| if (vif->nw_type != AP_NETWORK) |
| return |