/* * 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" #include "hif-ops.h" #include "testmode.h" static unsigned int ath6kl_p2p; static unsigned int multi_norm_if_support; module_param(ath6kl_p2p, uint, 0644); module_param(multi_norm_if_support, uint, 0644); #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, }; #define CCKM_KRK_CIPHER_SUITE 0x004096ff /* use for KRK */ 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 spported\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_WPA && 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: *nw_type = INFRA_NETWORK; break; case NL80211_IFTYPE_ADHOC: *nw_type = ADHOC_NETWORK; break; case NL80211_IFTYPE_AP: *nw_type = AP_NETWORK; break; case NL80211_IFTYPE_P2P_CLIENT: *nw_type = INFRA_NETWORK; break; 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 < MAX_NUM_VIF; i++) { if ((ar->avail_idx_map >> i) & BIT(0)) { *if_idx = i; return true; } } } if (type == NL80211_IFTYPE_P2P_CLIENT || type == NL80211_IFTYPE_P2P_GO) { for (i = ar->max_norm_iface; i < MAX_NUM_VIF; i++) { if ((ar->avail_idx_map >> i) & BIT(0)) { *if_idx = i; return true; } } } return false; } 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; 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, 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 (sme->ie && (sme->ie_len > 0)) { status = ath6kl_set_assoc_req_ies(vif, sme->ie, sme->ie_len); if (status) return status; } 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_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 = &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; 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; 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); 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 int 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_mask, cap_val; u8 *ie; if (nw_type & ADHOC_NETWORK) { cap_mask = WLAN_CAPABILITY_IBSS; cap_val = WLAN_CAPABILITY_IBSS; } else { cap_mask = WLAN_CAPABILITY_ESS; cap_val = WLAN_CAPABILITY_ESS; } bss = cfg80211_get_bss(ar->wiphy, chan, bssid, vif->ssid, vif->ssid_len, cap_mask, cap_val); 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 -ENOMEM; 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, 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 " "entry\n"); if (bss == NULL) return -ENOMEM; cfg80211_put_bss(bss); return 0; } 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; /* 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); if (ath6kl_add_bss_if_needed(vif, nw_type, bssid, chan, assoc_info, beacon_ie_len) < 0) { 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, GFP_KERNEL); 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); } else if (vif->sme_state == SME_CONNECTED) { /* inform roam event to cfg80211 */ cfg80211_roamed(vif->ndev, chan, 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); struct ath6kl_vif *vif = netdev_priv(dev); ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: reason=%u\n", __func__, reason_code); 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); vif->sme_state = SME_DISCONNECTED; 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) { cfg80211_scan_done(vif->scan_req, true); 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; } memset(bssid, 0, ETH_ALEN); cfg80211_ibss_joined(vif->ndev, bssid, GFP_KERNEL); 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; } } /* * 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 will be notified to cfg80211. */ if (reason != DISCONNECT_CMD) { ath6kl_wmi_disconnect_cmd(ar->wmi, vif->fw_vif_idx); 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, reason, NULL, 0, GFP_KERNEL); } vif->sme_state = SME_DISCONNECTED; } 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); struct ath6kl_vif *vif = netdev_priv(ndev); s8 n_channels = 0; u16 *channels = NULL; int ret = 0; u32 force_fg_scan = 0; if (!ath6kl_cfg80211_ready(vif)) return -EIO; if (!ar->usr_bss_filter) { clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags); ret = ath6kl_wmi_bssfilter_cmd( ar->wmi, vif->fw_vif_idx, (test_bit(CONNECTED, &vif->flags) ? ALL_BUT_BSS_FILTER : ALL_BSS_FILTER), 0); if (ret) { ath6kl_err("couldn't set bss filtering\n"); return ret; } } 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, vif->fw_vif_idx, i + 1, SPECIFIC_SSID_FLAG, request->ssids[i].ssid_len, request->ssids[i].ssid); } if (request->ie) { 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"); 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; ret = ath6kl_wmi_startscan_cmd(ar->wmi, vif->fw_vif_idx, WMI_LONG_SCAN, force_fg_scan, false, 0, 0, n_channels, channels); if (ret) ath6kl_err("wmi_startscan_cmd failed\n"); else vif->scan_req = request; kfree(channels); return ret; } void ath6kl_cfg80211_scan_complete_event(struct ath6kl_vif *vif, bool aborted) { struct ath6kl *ar = vif->ar; 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, aborted); vif->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_vif *vif = netdev_priv(ndev); struct ath6kl_key *key = NULL; 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_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 = &vif->keys[key_index]; memset(key, 0, sizeof(struct ath6kl_key)); if (pairwise) key_usage = PAIRWISE_USAGE; else key_usage = GROUP_USAGE; if (params) { int 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); vif->def_txkey_index = key_index; if (vif->nw_type == AP_NETWORK && !pairwise && (key_type == TKIP_CRYPT || key_type == AES_CRYPT) && params) { 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, vif->def_txkey_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 = (struct ath6kl *)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_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 (!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_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 = &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 = (struct ath6kl *)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_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 (!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; } /* * 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); struct ath6kl_vif *vif; u8 ath6kl_dbm; 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 = 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, vif->fw_vif_idx, ath6kl_dbm); return 0; } static int ath6kl_cfg80211_get_txpower(struct wiphy *wiphy, 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 = 0; 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 != 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; 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: 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, vif->fw_vif_idx, mode.pwr_mode) != 0) { ath6kl_err("wmi_powermode_cmd failed\n"); return -EIO; } return 0; } static struct net_device *ath6kl_cfg80211_add_iface(struct wiphy *wiphy, char *name, enum nl80211_iftype type, u32 *flags, struct vif_params *params) { struct ath6kl *ar = wiphy_priv(wiphy); struct net_device *ndev; u8 if_idx, nw_type; if (ar->num_vif == MAX_NUM_VIF) { 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); } ndev = ath6kl_interface_add(ar, name, type, if_idx, nw_type); if (!ndev) return ERR_PTR(-ENOMEM); ar->num_vif++; return ndev; } static int ath6kl_cfg80211_del_iface(struct wiphy *wiphy, struct net_device *ndev) { struct ath6kl *ar = wiphy_priv(wiphy); struct ath6kl_vif *vif = netdev_priv(ndev); spin_lock_bh(&ar->list_lock); list_del(&vif->list); spin_unlock_bh(&ar->list_lock); ath6kl_cleanup_vif(vif, test_bit(WMI_READY, &ar->flag)); ath6kl_deinit_if_data(vif); 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_vif *vif = netdev_priv(ndev); ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: type %u\n", __func__, type); if (!ath6kl_cfg80211_ready(vif)) return -EIO; switch (type) { case NL80211_IFTYPE_STATION: vif->next_mode = INFRA_NETWORK; break; case NL80211_IFTYPE_ADHOC: vif->next_mode = ADHOC_NETWORK; break; case NL80211_IFTYPE_AP: vif->next_mode = AP_NETWORK; break; case NL80211_IFTYPE_P2P_CLIENT: vif->next_mode = INFRA_NETWORK; break; 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->channel) vif->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(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); 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, 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 |= STATION_INFO_RX_BYTES; sinfo->rx_packets = vif->target_stats.rx_pkt; sinfo->filled |= STATION_INFO_RX_PACKETS; } if (vif->target_stats.tx_byte) { sinfo->tx_bytes = vif->target_stats.tx_byte; sinfo->filled |= STATION_INFO_TX_BYTES; sinfo->tx_packets = vif->target_stats.tx_pkt; sinfo->filled |= STATION_INFO_TX_PACKETS; } sinfo->signal = vif->target_stats.cs_rssi; sinfo->filled |= STATION_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; } 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_dbg(ATH6KL_DBG_WLAN_CFG, "invalid rate from stats: %d\n", rate); ath6kl_debug_war(ar, ATH6KL_WAR_INVALID_RATE); return 0; } sinfo->filled |= STATION_INFO_TX_BITRATE; if (test_bit(CONNECTED, &vif->flags) && test_bit(DTIM_PERIOD_AVAIL, &vif->flags) && vif->nw_type == INFRA_NETWORK) { sinfo->filled |= STATION_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_suspend(struct ath6kl *ar, struct cfg80211_wowlan *wow) { struct ath6kl_vif *vif; int ret, pos, left; u32 filter = 0; u16 i; u8 mask[WOW_MASK_SIZE]; vif = ath6kl_vif_first(ar); if (!vif) return -EIO; if (!ath6kl_cfg80211_ready(vif)) return -EIO; if (!test_bit(CONNECTED, &vif->flags)) return -EINVAL; /* 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); /* Configure new WOW patterns */ 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; ret = ath6kl_wmi_set_wow_mode_cmd(ar->wmi, vif->fw_vif_idx, ATH6KL_WOW_MODE_ENABLE, filter, WOW_HOST_REQ_DELAY); if (ret) return ret; ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx, ATH6KL_HOST_MODE_ASLEEP); if (ret) return ret; if (ar->tx_pending[ar->ctrl_ep]) { left = wait_event_interruptible_timeout(ar->event_wq, ar->tx_pending[ar->ctrl_ep] == 0, 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_resume(struct ath6kl *ar) { struct ath6kl_vif *vif; int ret; vif = ath6kl_vif_first(ar); if (!vif) return -EIO; ret = ath6kl_wmi_set_host_sleep_mode_cmd(ar->wmi, vif->fw_vif_idx, ATH6KL_HOST_MODE_AWAKE); return ret; } int ath6kl_cfg80211_suspend(struct ath6kl *ar, enum ath6kl_cfg_suspend_mode mode, struct cfg80211_wowlan *wow) { 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); ret = ath6kl_wow_suspend(ar, wow); if (ret) { ath6kl_err("wow suspend failed: %d\n", ret); return ret; } ar->state = ATH6KL_STATE_WOW; break; case ATH6KL_CFG_SUSPEND_DEEPSLEEP: ath6kl_cfg80211_stop(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) { ath6kl_warn("wmi powermode command failed during suspend: %d\n", ret); } ar->state = ATH6KL_STATE_DEEPSLEEP; break; case ATH6KL_CFG_SUSPEND_CUTPOWER: ath6kl_cfg80211_stop(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; } return 0; } 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; } ar->state = ATH6KL_STATE_ON; break; case ATH6KL_STATE_DEEPSLEEP: 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) { ath6kl_warn("wmi powermode command failed during resume: %d\n", ret); } } ar->state = ATH6KL_STATE_ON; 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; } #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); return ath6kl_hif_suspend(ar, wow); } static int __ath6kl_cfg80211_resume(struct wiphy *wiphy) { struct ath6kl *ar = wiphy_priv(wiphy); return ath6kl_hif_resume(ar); } /* * 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_WOW) ath6kl_cfg80211_resume(ar); } #else void ath6kl_check_wow_status(struct ath6kl *ar) { } #endif static int ath6kl_set_channel(struct wiphy *wiphy, struct net_device *dev, struct ieee80211_channel *chan, enum nl80211_channel_type channel_type) { struct ath6kl_vif *vif = netdev_priv(dev); if (!ath6kl_cfg80211_ready(vif)) return -EIO; ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: center_freq=%u hw_value=%u\n", __func__, chan->center_freq, chan->hw_value); vif->next_chan = chan->center_freq; return 0; } 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_ap_beacon(struct wiphy *wiphy, struct net_device *dev, struct beacon_parameters *info, bool add) { struct ath6kl *ar = ath6kl_priv(dev); struct ath6kl_vif *vif = netdev_priv(dev); struct ieee80211_mgmt *mgmt; u8 *ies; int ies_len; struct wmi_connect_cmd p; int res; int i; ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: add=%d\n", __func__, add); if (!ath6kl_cfg80211_ready(vif)) return -EIO; if (vif->next_mode != AP_NETWORK) return -EOPNOTSUPP; if (info->beacon_ies) { 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; } if (info->proberesp_ies) { res = ath6kl_set_ap_probe_resp_ies(vif, info->proberesp_ies, info->proberesp_ies_len); if (res) return res; } if (info->assocresp_ies) { 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; } if (!add) return 0; ar->ap_mode_bkey.valid = false; /* TODO: * info->interval * info->dtim_period */ if (info->head == NULL) return -EINVAL; mgmt = (struct ieee80211_mgmt *) info->head; ies = mgmt->u.beacon.variable; if (ies > info->head + info->head_len) return -EINVAL; ies_len = info->head + info->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) return -EOPNOTSUPP; /* TODO */ vif->dot11_auth_mode = OPEN_AUTH; 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(vif->next_chan); res = ath6kl_wmi_ap_profile_commit(ar->wmi, vif->fw_vif_idx, &p); if (res < 0) return res; return 0; } static int ath6kl_add_beacon(struct wiphy *wiphy, struct net_device *dev, struct beacon_parameters *info) { return ath6kl_ap_beacon(wiphy, dev, info, true); } static int ath6kl_set_beacon(struct wiphy *wiphy, struct net_device *dev, struct beacon_parameters *info) { return ath6kl_ap_beacon(wiphy, dev, info, false); } static int ath6kl_del_beacon(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 -EOPNOTSUPP; if (!test_bit(CONNECTED, &vif->flags)) return -ENOTCONN; ath6kl_wmi_disconnect_cmd(ar->wmi, vif->fw_vif_idx); clear_bit(CONNECTED, &vif->flags); return 0; } static int ath6kl_change_station(struct wiphy *wiphy, struct net_device *dev, u8 *mac, struct station_parameters *params) { struct ath6kl *ar = ath6kl_priv(dev); struct ath6kl_vif *vif = netdev_priv(dev); if (vif->nw_type != AP_NETWORK) return -EOPNOTSUPP; /* Use this only for authorizing/unauthorizing a station */ if (!(params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED))) return -EOPNOTSUPP; if (params->sta_flags_set & BIT(NL80211_STA_FLAG_AUTHORIZED)) return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx, WMI_AP_MLME_AUTHORIZE, mac, 0); return ath6kl_wmi_ap_set_mlme(ar->wmi, vif->fw_vif_idx, WMI_AP_MLME_UNAUTHORIZE, mac, 0); } static int ath6kl_remain_on_channel(struct wiphy *wiphy, struct net_device *dev, struct ieee80211_channel *chan, enum nl80211_channel_type channel_type, unsigned int duration, u64 *cookie) { struct ath6kl *ar = ath6kl_priv(dev); struct ath6kl_vif *vif = netdev_priv(dev); u32 id; /* TODO: if already pending or ongoing remain-on-channel, * return -EBUSY */ id = ++vif->last_roc_id; if (id == 0) { /* Do not use 0 as the cookie value */ id = ++vif->last_roc_id; } *cookie = id; return ath6kl_wmi_remain_on_chnl_cmd(ar->wmi, vif->fw_vif_idx, chan->center_freq, duration); } static int ath6kl_cancel_remain_on_channel(struct wiphy *wiphy, struct net_device *dev, u64 cookie) { struct ath6kl *ar = ath6kl_priv(dev); struct ath6kl_vif *vif = netdev_priv(dev); if (cookie != vif->last_roc_id) return -ENOENT; vif->last_cancel_roc_id = cookie; return ath6kl_wmi_cancel_remain_on_chnl_cmd(ar->wmi, vif->fw_vif_idx); } static int ath6kl_send_go_probe_resp(struct ath6kl_vif *vif, const u8 *buf, size_t len, unsigned int freq) { struct ath6kl *ar = vif->ar; const u8 *pos; u8 *p2p; int p2p_len; int ret; const struct ieee80211_mgmt *mgmt; mgmt = (const struct ieee80211_mgmt *) buf; /* Include P2P IE(s) from the frame generated in user space. */ p2p = kmalloc(len, GFP_KERNEL); if (p2p == NULL) return -ENOMEM; p2p_len = 0; pos = mgmt->u.probe_resp.variable; while (pos + 1 < buf + len) { if (pos + 2 + pos[1] > buf + len) break; if (ath6kl_is_p2p_ie(pos)) { memcpy(p2p + p2p_len, pos, 2 + pos[1]); p2p_len += 2 + pos[1]; } pos += 2 + pos[1]; } ret = ath6kl_wmi_send_probe_response_cmd(ar->wmi, vif->fw_vif_idx, freq, mgmt->da, p2p, p2p_len); kfree(p2p); return ret; } static int ath6kl_mgmt_tx(struct wiphy *wiphy, struct net_device *dev, struct ieee80211_channel *chan, bool offchan, enum nl80211_channel_type channel_type, bool channel_type_valid, unsigned int wait, const u8 *buf, size_t len, bool no_cck, bool dont_wait_for_ack, u64 *cookie) { struct ath6kl *ar = ath6kl_priv(dev); struct ath6kl_vif *vif = netdev_priv(dev); u32 id; const struct ieee80211_mgmt *mgmt; mgmt = (const struct ieee80211_mgmt *) buf; if (buf + len >= mgmt->u.probe_resp.variable && vif->nw_type == AP_NETWORK && test_bit(CONNECTED, &vif->flags) && ieee80211_is_probe_resp(mgmt->frame_control)) { /* * Send Probe Response frame in AP mode using a separate WMI * command to allow the target to fill in the generic IEs. */ *cookie = 0; /* TX status not supported */ return ath6kl_send_go_probe_resp(vif, buf, len, chan->center_freq); } id = vif->send_action_id++; if (id == 0) { /* * 0 is a reserved value in the WMI command and shall not be * used for the command. */ id = vif->send_action_id++; } *cookie = id; return ath6kl_wmi_send_action_cmd(ar->wmi, vif->fw_vif_idx, id, chan->center_freq, wait, buf, len); } static void ath6kl_mgmt_frame_register(struct wiphy *wiphy, struct net_device *dev, u16 frame_type, bool reg) { struct ath6kl_vif *vif = netdev_priv(dev); ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "%s: frame_type=0x%x reg=%d\n", __func__, frame_type, reg); if (frame_type == IEEE80211_STYPE_PROBE_REQ) { /* * Note: This notification callback is not allowed to sleep, so * we cannot send WMI_PROBE_REQ_REPORT_CMD here. Instead, we * hardcode target to report Probe Request frames all the time. */ vif->probe_req_report = reg; } } static const struct ieee80211_txrx_stypes ath6kl_mgmt_stypes[NUM_NL80211_IFTYPES] = { [NL80211_IFTYPE_STATION] = { .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | BIT(IEEE80211_STYPE_PROBE_RESP >> 4), .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) }, [NL80211_IFTYPE_P2P_CLIENT] = { .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | BIT(IEEE80211_STYPE_PROBE_RESP >> 4), .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) }, [NL80211_IFTYPE_P2P_GO] = { .tx = BIT(IEEE80211_STYPE_ACTION >> 4) | BIT(IEEE80211_STYPE_PROBE_RESP >> 4), .rx = BIT(IEEE80211_STYPE_ACTION >> 4) | BIT(IEEE80211_STYPE_PROBE_REQ >> 4) }, }; static struct cfg80211_ops ath6kl_cfg80211_ops = { .add_virtual_intf = ath6kl_cfg80211_add_iface, .del_virtual_intf = ath6kl_cfg80211_del_iface, .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, CFG80211_TESTMODE_CMD(ath6kl_tm_cmd) #ifdef CONFIG_PM .suspend = __ath6kl_cfg80211_suspend, .resume = __ath6kl_cfg80211_resume, #endif .set_channel = ath6kl_set_channel, .add_beacon = ath6kl_add_beacon, .set_beacon = ath6kl_set_beacon, .del_beacon = ath6kl_del_beacon, .change_station = ath6kl_change_station, .remain_on_channel = ath6kl_remain_on_channel, .cancel_remain_on_channel = ath6kl_cancel_remain_on_channel, .mgmt_tx = ath6kl_mgmt_tx, .mgmt_frame_register = ath6kl_mgmt_frame_register, }; void ath6kl_cfg80211_stop(struct ath6kl *ar) { struct ath6kl_vif *vif; /* FIXME: for multi vif */ vif = ath6kl_vif_first(ar); if (!vif) { /* save the current power mode before enabling power save */ ar->wmi->saved_pwr_mode = ar->wmi->pwr_mode; if (ath6kl_wmi_powermode_cmd(ar->wmi, 0, REC_POWER) != 0) ath6kl_warn("ath6kl_deep_sleep_enable: " "wmi_powermode_cmd failed\n"); return; } switch (vif->sme_state) { case SME_CONNECTING: cfg80211_connect_result(vif->ndev, vif->bssid, NULL, 0, NULL, 0, WLAN_STATUS_UNSPECIFIED_FAILURE, GFP_KERNEL); break; case SME_CONNECTED: default: /* * FIXME: oddly enough smeState is in DISCONNECTED during * suspend, why? Need to send disconnected event in that * state. */ cfg80211_disconnected(vif->ndev, 0, NULL, 0, GFP_KERNEL); break; } if (test_bit(CONNECTED, &vif->flags) || test_bit(CONNECT_PEND, &vif->flags)) ath6kl_wmi_disconnect_cmd(ar->wmi, vif->fw_vif_idx); vif->sme_state = SME_DISCONNECTED; clear_bit(CONNECTED, &vif->flags); clear_bit(CONNECT_PEND, &vif->flags); /* disable scanning */ if (ath6kl_wmi_scanparams_cmd(ar->wmi, vif->fw_vif_idx, 0xFFFF, 0, 0, 0, 0, 0, 0, 0, 0, 0) != 0) printk(KERN_WARNING "ath6kl: failed to disable scan " "during suspend\n"); ath6kl_cfg80211_scan_complete_event(vif, true); } struct ath6kl *ath6kl_core_alloc(struct device *dev) { struct ath6kl *ar; struct wiphy *wiphy; u8 ctr; /* create a new wiphy for use with cfg80211 */ wiphy = wiphy_new(&ath6kl_cfg80211_ops, sizeof(struct ath6kl)); if (!wiphy) { ath6kl_err("couldn't allocate wiphy device\n"); return NULL; } ar = wiphy_priv(wiphy); if (!multi_norm_if_support) ar->p2p = !!ath6kl_p2p; ar->wiphy = wiphy; ar->dev = dev; if (multi_norm_if_support) ar->max_norm_iface = 2; else ar->max_norm_iface = 1; /* FIXME: Remove this once the multivif support is enabled */ ar->max_norm_iface = 1; spin_lock_init(&ar->lock); spin_lock_init(&ar->mcastpsq_lock); spin_lock_init(&ar->list_lock); init_waitqueue_head(&ar->event_wq); sema_init(&ar->sem, 1); INIT_LIST_HEAD(&ar->amsdu_rx_buffer_queue); INIT_LIST_HEAD(&ar->vif_list); clear_bit(WMI_ENABLED, &ar->flag); clear_bit(SKIP_SCAN, &ar->flag); clear_bit(DESTROY_IN_PROGRESS, &ar->flag); ar->listen_intvl_t = A_DEFAULT_LISTEN_INTERVAL; ar->listen_intvl_b = 0; ar->tx_pwr = 0; ar->intra_bss = 1; memset(&ar->sc_params, 0, sizeof(ar->sc_params)); ar->sc_params.short_scan_ratio = WMI_SHORTSCANRATIO_DEFAULT; ar->sc_params.scan_ctrl_flags = DEFAULT_SCAN_CTRL_FLAGS; ar->lrssi_roam_threshold = DEF_LRSSI_ROAM_THRESHOLD; ar->state = ATH6KL_STATE_OFF; memset((u8 *)ar->sta_list, 0, AP_MAX_NUM_STA * sizeof(struct ath6kl_sta)); /* Init the PS queues */ for (ctr = 0; ctr < AP_MAX_NUM_STA; ctr++) { spin_lock_init(&ar->sta_list[ctr].psq_lock); skb_queue_head_init(&ar->sta_list[ctr].psq); } skb_queue_head_init(&ar->mcastpsq); memcpy(ar->ap_country_code, DEF_AP_COUNTRY_CODE, 3); return ar; } int ath6kl_register_ieee80211_hw(struct ath6kl *ar) { struct wiphy *wiphy = ar->wiphy; int ret; wiphy->mgmt_stypes = ath6kl_mgmt_stypes; wiphy->max_remain_on_channel_duration = 5000; /* set device pointer for wiphy */ set_wiphy_dev(wiphy, ar->dev); wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_ADHOC) | BIT(NL80211_IFTYPE_AP); if (ar->p2p) { wiphy->interface_modes |= BIT(NL80211_IFTYPE_P2P_GO) | BIT(NL80211_IFTYPE_P2P_CLIENT); } /* max num of ssids that can be probed during scanning */ wiphy->max_scan_ssids = MAX_PROBED_SSID_INDEX; wiphy->max_scan_ie_len = 1000; /* FIX: what is correct limit? */ wiphy->bands[IEEE80211_BAND_2GHZ] = &ath6kl_band_2ghz; wiphy->bands[IEEE80211_BAND_5GHZ] = &ath6kl_band_5ghz; wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM; wiphy->cipher_suites = cipher_suites; wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites); wiphy->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT | WIPHY_WOWLAN_GTK_REKEY_FAILURE | WIPHY_WOWLAN_SUPPORTS_GTK_REKEY | WIPHY_WOWLAN_EAP_IDENTITY_REQ | WIPHY_WOWLAN_4WAY_HANDSHAKE; wiphy->wowlan.n_patterns = WOW_MAX_FILTERS_PER_LIST; wiphy->wowlan.pattern_min_len = 1; wiphy->wowlan.pattern_max_len = WOW_PATTERN_SIZE; ret = wiphy_register(wiphy); if (ret < 0) { ath6kl_err("couldn't register wiphy device\n"); return ret; } return 0; } static int ath6kl_init_if_data(struct ath6kl_vif *vif) { vif->aggr_cntxt = aggr_init(vif->ndev); if (!vif->aggr_cntxt) { ath6kl_err("failed to initialize aggr\n"); return -ENOMEM; } setup_timer(&vif->disconnect_timer, disconnect_timer_handler, (unsigned long) vif->ndev); set_bit(WMM_ENABLED, &vif->flags); spin_lock_init(&vif->if_lock); return 0; } void ath6kl_deinit_if_data(struct ath6kl_vif *vif) { struct ath6kl *ar = vif->ar; aggr_module_destroy(vif->aggr_cntxt); ar->avail_idx_map |= BIT(vif->fw_vif_idx); if (vif->nw_type == ADHOC_NETWORK) ar->ibss_if_active = false; unregister_netdevice(vif->ndev); ar->num_vif--; } struct net_device *ath6kl_interface_add(struct ath6kl *ar, char *name, enum nl80211_iftype type, u8 fw_vif_idx, u8 nw_type) { struct net_device *ndev; struct ath6kl_vif *vif; ndev = alloc_netdev(sizeof(*vif), name, ether_setup); if (!ndev) return NULL; vif = netdev_priv(ndev); ndev->ieee80211_ptr = &vif->wdev; vif->wdev.wiphy = ar->wiphy; vif->ar = ar; vif->ndev = ndev; SET_NETDEV_DEV(ndev, wiphy_dev(vif->wdev.wiphy)); vif->wdev.netdev = ndev; vif->wdev.iftype = type; vif->fw_vif_idx = fw_vif_idx; vif->nw_type = vif->next_mode = nw_type; memcpy(ndev->dev_addr, ar->mac_addr, ETH_ALEN); if (fw_vif_idx != 0) ndev->dev_addr[0] = (ndev->dev_addr[0] ^ (1 << fw_vif_idx)) | 0x2; init_netdev(ndev); ath6kl_init_control_info(vif); /* TODO: Pass interface specific pointer instead of ar */ if (ath6kl_init_if_data(vif)) goto err; if (register_netdevice(ndev)) goto err; ar->avail_idx_map &= ~BIT(fw_vif_idx); vif->sme_state = SME_DISCONNECTED; set_bit(WLAN_ENABLED, &vif->flags); ar->wlan_pwr_state = WLAN_POWER_STATE_ON; set_bit(NETDEV_REGISTERED, &vif->flags); if (type == NL80211_IFTYPE_ADHOC) ar->ibss_if_active = true; spin_lock_bh(&ar->list_lock); list_add_tail(&vif->list, &ar->vif_list); spin_unlock_bh(&ar->list_lock); return ndev; err: aggr_module_destroy(vif->aggr_cntxt); free_netdev(ndev); return NULL; } void ath6kl_deinit_ieee80211_hw(struct ath6kl *ar) { wiphy_unregister(ar->wiphy); wiphy_free(ar->wiphy); }