/* * mac80211 configuration hooks for cfg80211 * * Copyright 2006-2010 Johannes Berg * * This file is GPLv2 as found in COPYING. */ #include #include #include #include #include #include #include #include #include #include "ieee80211_i.h" #include "driver-ops.h" #include "cfg.h" #include "rate.h" #include "mesh.h" static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy, const char *name, unsigned char name_assign_type, enum nl80211_iftype type, u32 *flags, struct vif_params *params) { struct ieee80211_local *local = wiphy_priv(wiphy); struct net_device *dev; struct wireless_dev *wdev; struct ieee80211_sub_if_data *sdata; int err; #if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 4, 0)) err = mac80211_if_add(local, name, name_assign_type, &dev, type, params); #else err = mac80211_if_add(local, name, &dev, type, params); #endif if (err) return ERR_PTR(err); sdata = IEEE80211_DEV_TO_SUB_IF(dev); if (type == NL80211_IFTYPE_MONITOR && flags) { sdata->u.mntr_flags = *flags; } wdev = &sdata->wdev; return wdev; } static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev) { mac80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev)); return 0; } #if 0 static int ieee80211_del_iface(struct wiphy *wiphy, struct net_device *dev) { mac80211_if_remove(IEEE80211_DEV_TO_SUB_IF(dev)); return 0; } #endif static int ieee80211_change_iface(struct wiphy *wiphy, struct net_device *dev, enum nl80211_iftype type, u32 *flags, struct vif_params *params) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); int ret; ret = mac80211_if_change_type(sdata, type); if (ret) return ret; if (type == NL80211_IFTYPE_AP_VLAN && params && params->use_4addr == 0) RCU_INIT_POINTER(sdata->u.vlan.sta, NULL); else if (type == NL80211_IFTYPE_STATION && params && params->use_4addr >= 0) sdata->u.mgd.use_4addr = params->use_4addr; if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) { if (ieee80211_sdata_running(sdata)) { /* * Prohibit MONITOR_FLAG_COOK_FRAMES to be * changed while the interface is up. * Else we would need to add a lot of cruft * to update everything: * cooked_mntrs, monitor and all fif_* counters * reconfigure hardware */ if ((*flags & MONITOR_FLAG_COOK_FRAMES) != (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES)) return -EBUSY; mac80211_adjust_monitor_flags(sdata, -1); sdata->u.mntr_flags = *flags; mac80211_adjust_monitor_flags(sdata, 1); mac80211_configure_filter(sdata); } else { /* * Because the interface is down, ieee80211_do_stop * and ieee80211_do_open take care of "everything" * mentioned in the comment above. */ sdata->u.mntr_flags = *flags; } } return 0; } static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, u8 key_idx, bool pairwise, const u8 *mac_addr, struct key_params *params) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct sta_info *sta = NULL; struct ieee80211_key *key; int err; if (!ieee80211_sdata_running(sdata)) return -ENETDOWN; /* reject WEP and TKIP keys if WEP failed to initialize */ switch (params->cipher) { case WLAN_CIPHER_SUITE_WEP40: case WLAN_CIPHER_SUITE_TKIP: case WLAN_CIPHER_SUITE_WEP104: if (IS_ERR(sdata->local->wep_tx_tfm)) return -EINVAL; break; default: break; } key = mac80211_key_alloc(params->cipher, key_idx, params->key_len, params->key, params->seq_len, params->seq); if (IS_ERR(key)) return PTR_ERR(key); if (pairwise) key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; if (pairwise && sdata->vif.type == NL80211_IFTYPE_STATION) { int ret = 0; /* * Fix a bug that in some case Add_key is before * 4-way handshake fourth frame sending while will cause 4-way handshake failed. * If and only if the sta has associated the ap and * start 4-way handshake but no finish(FINISH2), Add_key will * be delay until 4-way handshake finish(FINISH4) */ ret = wait_event_timeout(sdata->setkey_wq, !((sdata->u.mgd.associated != NULL) && (sdata->fourway_state == SDATA_4WAY_STATE_FINISH2)),0.5 * HZ); if (ret == 0) { sdata->fourway_state = SDATA_4WAY_STATE_NONE; printk(KERN_WARNING "[XRADIO]4-Way Handshake timeout.\n"); } } mutex_lock(&sdata->local->sta_mtx); if (mac_addr) { if (ieee80211_vif_is_mesh(&sdata->vif)) sta = xrmac_sta_info_get(sdata, mac_addr); else sta = xrmac_sta_info_get_bss(sdata, mac_addr); if (!sta) { mac80211_key_free(sdata->local, key); err = -ENOENT; goto out_unlock; } } err = mac80211_key_link(key, sdata, sta); if (err) mac80211_key_free(sdata->local, key); out_unlock: mutex_unlock(&sdata->local->sta_mtx); return err; } static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, u8 key_idx, bool pairwise, const u8 *mac_addr) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct ieee80211_local *local = sdata->local; struct sta_info *sta; struct ieee80211_key *key = NULL; int ret; mutex_lock(&local->sta_mtx); mutex_lock(&local->key_mtx); if (mac_addr) { ret = -ENOENT; sta = xrmac_sta_info_get_bss(sdata, mac_addr); if (!sta) goto out_unlock; if (pairwise) key = key_mtx_dereference(local, sta->ptk); else key = key_mtx_dereference(local, sta->gtk[key_idx]); } else key = key_mtx_dereference(local, sdata->keys[key_idx]); if (!key) { ret = -ENOENT; goto out_unlock; } __mac80211_key_free(key); ret = 0; out_unlock: mutex_unlock(&local->key_mtx); mutex_unlock(&local->sta_mtx); return ret; } static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, u8 key_idx, bool pairwise, const u8 *mac_addr, void *cookie, void (*callback)(void *cookie, struct key_params *params)) { struct ieee80211_sub_if_data *sdata; struct sta_info *sta = NULL; u8 seq[6] = {0}; struct key_params params; struct ieee80211_key *key = NULL; u64 pn64; u32 iv32; u16 iv16; int err = -ENOENT; sdata = IEEE80211_DEV_TO_SUB_IF(dev); rcu_read_lock(); if (mac_addr) { sta = xrmac_sta_info_get_bss(sdata, mac_addr); if (!sta) goto out; if (pairwise) key = rcu_dereference(sta->ptk); else if (key_idx < NUM_DEFAULT_KEYS) key = rcu_dereference(sta->gtk[key_idx]); } else key = rcu_dereference(sdata->keys[key_idx]); if (!key) goto out; memset(¶ms, 0, sizeof(params)); params.cipher = key->conf.cipher; switch (key->conf.cipher) { case WLAN_CIPHER_SUITE_TKIP: iv32 = key->u.tkip.tx.iv32; iv16 = key->u.tkip.tx.iv16; if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) drv_get_tkip_seq(sdata->local, key->conf.hw_key_idx, &iv32, &iv16); seq[0] = iv16 & 0xff; seq[1] = (iv16 >> 8) & 0xff; seq[2] = iv32 & 0xff; seq[3] = (iv32 >> 8) & 0xff; seq[4] = (iv32 >> 16) & 0xff; seq[5] = (iv32 >> 24) & 0xff; params.seq = seq; params.seq_len = 6; break; case WLAN_CIPHER_SUITE_CCMP: pn64 = atomic64_read(&key->u.ccmp.tx_pn); seq[0] = pn64; seq[1] = pn64 >> 8; seq[2] = pn64 >> 16; seq[3] = pn64 >> 24; seq[4] = pn64 >> 32; seq[5] = pn64 >> 40; params.seq = seq; params.seq_len = 6; break; case WLAN_CIPHER_SUITE_AES_CMAC: pn64 = atomic64_read(&key->u.aes_cmac.tx_pn); seq[0] = pn64; seq[1] = pn64 >> 8; seq[2] = pn64 >> 16; seq[3] = pn64 >> 24; seq[4] = pn64 >> 32; seq[5] = pn64 >> 40; params.seq = seq; params.seq_len = 6; break; } params.key = key->conf.key; params.key_len = key->conf.keylen; callback(cookie, ¶ms); err = 0; out: rcu_read_unlock(); return err; } static int ieee80211_config_default_key(struct wiphy *wiphy, struct net_device *dev, u8 key_idx, bool uni, bool multi) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); mac80211_set_default_key(sdata, key_idx, uni, multi); return 0; } static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, struct net_device *dev, u8 key_idx) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); mac80211_set_default_mgmt_key(sdata, key_idx); return 0; } static void rate_idx_to_bitrate(struct rate_info *rate, struct sta_info *sta, int idx) { struct ieee80211_channel_state *chan_state = ieee80211_get_channel_state(sta->local, sta->sdata); if (!(rate->flags & RATE_INFO_FLAGS_MCS)) { struct ieee80211_supported_band *sband; sband = sta->local->hw.wiphy->bands[ chan_state->conf.channel->band]; rate->legacy = sband->bitrates[idx].bitrate; } else rate->mcs = idx; } static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo) { struct ieee80211_sub_if_data *sdata = sta->sdata; struct timespec uptime; sinfo->generation = sdata->local->sta_generation; sinfo->filled = BIT(NL80211_STA_INFO_INACTIVE_TIME) | BIT(NL80211_STA_INFO_RX_BYTES) | BIT(NL80211_STA_INFO_TX_BYTES) | BIT(NL80211_STA_INFO_RX_PACKETS) | BIT(NL80211_STA_INFO_TX_PACKETS) | BIT(NL80211_STA_INFO_TX_RETRIES) | BIT(NL80211_STA_INFO_TX_FAILED) | BIT(NL80211_STA_INFO_TX_BITRATE) | BIT(NL80211_STA_INFO_RX_BITRATE) | BIT(NL80211_STA_INFO_RX_DROP_MISC) | BIT(NL80211_STA_INFO_BSS_PARAM) | BIT(NL80211_STA_INFO_CONNECTED_TIME) | BIT(NL80211_STA_INFO_STA_FLAGS); ktime_get_ts(&uptime); sinfo->connected_time = uptime.tv_sec - sta->last_connected; sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx); sinfo->rx_bytes = sta->rx_bytes; sinfo->tx_bytes = sta->tx_bytes; sinfo->rx_packets = sta->rx_packets; sinfo->tx_packets = sta->tx_packets; sinfo->tx_retries = sta->tx_retry_count; sinfo->tx_failed = sta->tx_retry_failed; sinfo->rx_dropped_misc = sta->rx_dropped; if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) || (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) { sinfo->filled |= BIT(NL80211_STA_INFO_SIGNAL) | BIT(NL80211_STA_INFO_SIGNAL_AVG); sinfo->signal = (s8)sta->last_signal; sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal); } sinfo->txrate.flags = 0; if (sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS) sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS; if (sta->last_tx_rate.flags & IEEE80211_TX_RC_40_MHZ_WIDTH) sinfo->txrate.bw |= RATE_INFO_BW_40; if (sta->last_tx_rate.flags & IEEE80211_TX_RC_SHORT_GI) sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI; rate_idx_to_bitrate(&sinfo->txrate, sta, sta->last_tx_rate.idx); sinfo->rxrate.flags = 0; if (sta->last_rx_rate_flag & RX_FLAG_HT) sinfo->rxrate.flags |= RATE_INFO_FLAGS_MCS; if (sta->last_rx_rate_flag & RX_FLAG_40MHZ) sinfo->rxrate.bw |= RATE_INFO_BW_40; if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI) sinfo->rxrate.flags |= RATE_INFO_FLAGS_SHORT_GI; rate_idx_to_bitrate(&sinfo->rxrate, sta, sta->last_rx_rate_idx); if (ieee80211_vif_is_mesh(&sdata->vif)) { #ifdef CONFIG_XRMAC_MESH sinfo->filled |= BIT(NL80211_STA_INFO_LLID) | BIT(NL80211_STA_INFO_PLID) | BIT(NL80211_STA_INFO_PLINK_STATE); sinfo->llid = le16_to_cpu(sta->llid); sinfo->plid = le16_to_cpu(sta->plid); sinfo->plink_state = sta->plink_state; #endif } sinfo->bss_param.flags = 0; if (sdata->vif.bss_conf.use_cts_prot) sinfo->bss_param.flags |= BSS_PARAM_FLAGS_CTS_PROT; if (sdata->vif.bss_conf.use_short_preamble) sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_PREAMBLE; if (sdata->vif.bss_conf.use_short_slot) sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_SLOT_TIME; sinfo->bss_param.dtim_period = sdata->vif.bss_conf.ps_dtim_period; sinfo->bss_param.beacon_interval = sdata->vif.bss_conf.beacon_int; sinfo->sta_flags.set = 0; sinfo->sta_flags.mask = BIT(NL80211_STA_FLAG_AUTHORIZED) | BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) | BIT(NL80211_STA_FLAG_WME) | BIT(NL80211_STA_FLAG_MFP) | BIT(NL80211_STA_FLAG_AUTHENTICATED); if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHORIZED); if (test_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE)) sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE); if (test_sta_flag(sta, WLAN_STA_WME)) sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_WME); if (test_sta_flag(sta, WLAN_STA_MFP)) sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_MFP); if (test_sta_flag(sta, WLAN_STA_AUTH)) sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHENTICATED); } static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, int idx, u8 *mac, struct station_info *sinfo) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct sta_info *sta; int ret = -ENOENT; rcu_read_lock(); sta = xrmac_sta_info_get_by_idx(sdata, idx); if (sta) { ret = 0; memcpy(mac, sta->sta.addr, ETH_ALEN); sta_set_sinfo(sta, sinfo); } rcu_read_unlock(); return ret; } static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, int idx, struct survey_info *survey) { struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); return drv_get_survey(local, idx, survey); } static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, const u8 *mac, struct station_info *sinfo) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct sta_info *sta; int ret = -ENOENT; rcu_read_lock(); sta = xrmac_sta_info_get_bss(sdata, mac); if (sta) { ret = 0; sta_set_sinfo(sta, sinfo); } rcu_read_unlock(); return ret; } static void ieee80211_config_ap_ssid(struct ieee80211_sub_if_data *sdata, struct cfg80211_ap_settings *params) { struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf; bss_conf->ssid_len = params->ssid_len; if (params->ssid_len) memcpy(bss_conf->ssid, params->ssid, params->ssid_len); bss_conf->hidden_ssid = (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); } static void free_old_beacon(struct rcu_head *rcu_head) { struct beacon_data *old = container_of(rcu_head, struct beacon_data, rcu_head); kfree(old); } /* * This handles both adding a beacon and setting new beacon info */ static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata, struct cfg80211_ap_settings *params) { struct beacon_data *new, *old; int new_head_len, new_tail_len; int size; int err = -EINVAL; old = rtnl_dereference(sdata->u.ap.beacon); /* head must not be zero-length */ if (params->beacon.head && !params->beacon.head_len) return -EINVAL; /* * This is a kludge. beacon interval should really be part * of the beacon information. */ if (params->beacon_interval && (sdata->vif.bss_conf.beacon_int != params->beacon_interval)) { sdata->vif.bss_conf.beacon_int = params->beacon_interval; mac80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_INT); } /* Need to have a beacon head if we don't have one yet */ if (!params->beacon.head && !old) return err; /* sorry, no way to start beaconing without dtim period */ if (!params->dtim_period && !old) return err; /* new or old head? */ if (params->beacon.head) new_head_len = params->beacon.head_len; else new_head_len = old->head_len; /* new or old tail? */ if (params->beacon.tail || !old) /* params->tail_len will be zero for !params->tail */ new_tail_len = params->beacon.tail_len; else new_tail_len = old->tail_len; size = sizeof(*new) + new_head_len + new_tail_len; new = kzalloc(size, GFP_KERNEL); if (!new) return -ENOMEM; /* start filling the new info now */ /* new or old dtim period? */ if (params->dtim_period) new->dtim_period = params->dtim_period; else new->dtim_period = old->dtim_period; /* * pointers go into the block we allocated, * memory is | beacon_data | head | tail | */ new->head = ((u8 *) new) + sizeof(*new); new->tail = new->head + new_head_len; new->head_len = new_head_len; new->tail_len = new_tail_len; /* copy in head */ if (params->beacon.head) memcpy(new->head, params->beacon.head, new_head_len); else memcpy(new->head, old->head, new_head_len); /* copy in optional tail */ if (params->beacon.tail) memcpy(new->tail, params->beacon.tail, new_tail_len); else if (old) memcpy(new->tail, old->tail, new_tail_len); sdata->vif.bss_conf.dtim_period = new->dtim_period; rcu_assign_pointer(sdata->u.ap.beacon, new); if (old) call_rcu(&old->rcu_head, free_old_beacon); ieee80211_config_ap_ssid(sdata, params); mac80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED | BSS_CHANGED_BEACON | BSS_CHANGED_SSID); mac80211_bss_info_change_notify(sdata, BSS_CHANGED_ARP_FILTER); #ifdef IPV6_FILTERING mac80211_bss_info_change_notify(sdata, BSS_CHANGED_NDP_FILTER); #endif /*IPV6_FILTERING*/ return 0; } static int ieee80211_change_config_beacon(struct ieee80211_sub_if_data *sdata, struct cfg80211_beacon_data *params) { struct beacon_data *new, *old; int new_head_len, new_tail_len; int size; int err = -EINVAL; old = rtnl_dereference(sdata->u.ap.beacon); /* head must not be zero-length */ if (params->head && !params->head_len) return -EINVAL; /* * This is a kludge. beacon interval should really be part * of the beacon information. */ #if 0 if (params->beacon_interval && (sdata->vif.bss_conf.beacon_int != params->beacon_interval)) { sdata->vif.bss_conf.beacon_int = params->beacon_interval; mac80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_INT); } #endif /* Need to have a beacon head if we don't have one yet */ if (!params->head && !old) return err; /* sorry, no way to start beaconing without dtim period */ /* if (!params->dtim_period && !old) return err; */ /* new or old head? */ if (params->head) new_head_len = params->head_len; else new_head_len = old->head_len; /* new or old tail? */ if (params->tail || !old) /* params->tail_len will be zero for !params->tail */ new_tail_len = params->tail_len; else new_tail_len = old->tail_len; size = sizeof(*new) + new_head_len + new_tail_len; new = kzalloc(size, GFP_KERNEL); if (!new) return -ENOMEM; /* start filling the new info now */ /* new or old dtim period? */ /* if (params->dtim_period) new->dtim_period = params->dtim_period; else */ new->dtim_period = old->dtim_period; /* * pointers go into the block we allocated, * memory is | beacon_data | head | tail | */ new->head = ((u8 *) new) + sizeof(*new); new->tail = new->head + new_head_len; new->head_len = new_head_len; new->tail_len = new_tail_len; /* copy in head */ if (params->head) memcpy(new->head, params->head, new_head_len); else memcpy(new->head, old->head, new_head_len); /* copy in optional tail */ if (params->tail) memcpy(new->tail, params->tail, new_tail_len); else if (old) memcpy(new->tail, old->tail, new_tail_len); /*sdata->vif.bss_conf.dtim_period = new->dtim_period;*/ rcu_assign_pointer(sdata->u.ap.beacon, new); if (old) call_rcu(&old->rcu_head, free_old_beacon); /*ieee80211_config_ap_ssid(sdata, params);*/ mac80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED | BSS_CHANGED_BEACON | BSS_CHANGED_SSID); mac80211_bss_info_change_notify(sdata, BSS_CHANGED_ARP_FILTER); #ifdef IPV6_FILTERING mac80211_bss_info_change_notify(sdata, BSS_CHANGED_NDP_FILTER); #endif /*IPV6_FILTERING*/ return 0; } #ifdef PROBE_RESP_EXTRA_IE static int ieee80211_config_proberesp(struct ieee80211_sub_if_data *sdata, struct cfg80211_ap_settings *params) { struct proberesp_data *new, *old; int new_head_len, new_tail_len, new_proberesp_data_ies_len; int size; int err = -EINVAL; old = rtnl_dereference(sdata->u.ap.proberesp); /* head must not be zero-length */ if (params->beacon.head && !params->beacon.head_len) return -EINVAL; /* Need to have a probe response head if we don't have one yet */ if (!params->beacon.head && !old) return err; /* new or old head? */ if (params->beacon.head) new_head_len = params->beacon.head_len; else new_head_len = old->head_len; if (params->beacon.proberesp_ies || !old) new_proberesp_data_ies_len = params->beacon.proberesp_ies_len; else new_proberesp_data_ies_len = old->proberesp_data_ies_len; /* new or old tail? */ if (params->beacon.tail || !old) /* params->tail_len will be zero for !params->tail */ new_tail_len = params->beacon.tail_len; else new_tail_len = old->tail_len; size = sizeof(*new) + new_head_len + new_proberesp_data_ies_len + new_tail_len; new = kzalloc(size, GFP_KERNEL); if (!new) return -ENOMEM; new->head = ((u8 *) new) + sizeof(*new); new->head_len = new_head_len; new->tail = new->head + new->head_len; new->tail_len = new_tail_len; /* copy in head */ if (params->beacon.head) memcpy(new->head, params->beacon.head, new_head_len); else memcpy(new->head, old->head, new_head_len); *(__le16 *)new->head = __cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_RESP); /* copy in optional tail */ if (params->beacon.tail) { memcpy(new->tail, params->beacon.tail, new_tail_len); } else { if (old) memcpy(new->tail, old->tail, new_tail_len); } /* * Remove WPS IE and P2P IE from tail, as for probe response these IEs are * provided as part of proberesp_ies. */ if (params->beacon.tail) { int tail_len; volatile u8 *p = new->tail; u8 ie_len; tail_len = new->tail_len; while (tail_len >= 6) { ie_len = p[1] + 2; tail_len -= ie_len; if ((p[0] == WLAN_EID_VENDOR_SPECIFIC) && ((p[2] == 0x00 && p[3] == 0x50 && p[4] == 0xf2 && p[5] == 0x04) || (p[2] == 0x50 && p[3] == 0x6f && p[4] == 0x9a && p[5] == 0x09))) { memmove((u8 *)p, (u8 *)p + ie_len, tail_len); new->tail_len -= ie_len; } else { p += ie_len; } } } new->proberesp_data_ies = new->tail + new->tail_len; new->proberesp_data_ies_len = new_proberesp_data_ies_len; /* copy in optional probe response ies */ if (params->beacon.proberesp_ies) memcpy(new->proberesp_data_ies, params->beacon.proberesp_ies, new_proberesp_data_ies_len); else if (old) memcpy(new->proberesp_data_ies, old->proberesp_data_ies, new_proberesp_data_ies_len); rcu_assign_pointer(sdata->u.ap.proberesp, new); synchronize_rcu(); kfree(old); return 0; } #endif #ifdef PROBE_RESP_EXTRA_IE static int ieee80211_change_config_proberesp(struct ieee80211_sub_if_data *sdata, struct cfg80211_beacon_data *params) { struct proberesp_data *new, *old; int new_head_len, new_tail_len, new_proberesp_data_ies_len; int size; int err = -EINVAL; old = rtnl_dereference(sdata->u.ap.proberesp); /* head must not be zero-length */ if (params->head && !params->head_len) return -EINVAL; /* Need to have a probe response head if we don't have one yet */ if (!params->head && !old) return err; /* new or old head? */ if (params->head) new_head_len = params->head_len; else new_head_len = old->head_len; if (params->proberesp_ies || !old) new_proberesp_data_ies_len = params->proberesp_ies_len; else new_proberesp_data_ies_len = old->proberesp_data_ies_len; /* new or old tail? */ if (params->tail || !old) /* params->tail_len will be zero for !params->tail */ new_tail_len = params->tail_len; else new_tail_len = old->tail_len; size = sizeof(*new) + new_head_len + new_proberesp_data_ies_len + new_tail_len; new = kzalloc(size, GFP_KERNEL); if (!new) return -ENOMEM; new->head = ((u8 *) new) + sizeof(*new); new->head_len = new_head_len; new->tail = new->head + new->head_len; new->tail_len = new_tail_len; /* copy in head */ if (params->head) memcpy(new->head, params->head, new_head_len); else memcpy(new->head, old->head, new_head_len); *(__le16 *)new->head = __cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_RESP); /* copy in optional tail */ if (params->tail) { memcpy(new->tail, params->tail, new_tail_len); } else { if (old) memcpy(new->tail, old->tail, new_tail_len); } /* * Remove WPS IE and P2P IE from tail, as for probe response these IEs are * provided as part of proberesp_ies. */ if (params->tail) { int tail_len; volatile u8 *p = new->tail; u8 ie_len; tail_len = new->tail_len; while (tail_len >= 6) { ie_len = p[1] + 2; tail_len -= ie_len; if ((p[0] == WLAN_EID_VENDOR_SPECIFIC) && ((p[2] == 0x00 && p[3] == 0x50 && p[4] == 0xf2 && p[5] == 0x04) || (p[2] == 0x50 && p[3] == 0x6f && p[4] == 0x9a && p[5] == 0x09))) { memmove((u8 *)p, (u8 *)p + ie_len, tail_len); new->tail_len -= ie_len; } else { p += ie_len; } } } new->proberesp_data_ies = new->tail + new->tail_len; new->proberesp_data_ies_len = new_proberesp_data_ies_len; /* copy in optional probe response ies */ if (params->proberesp_ies) memcpy(new->proberesp_data_ies, params->proberesp_ies, new_proberesp_data_ies_len); else if (old) memcpy(new->proberesp_data_ies, old->proberesp_data_ies, new_proberesp_data_ies_len); rcu_assign_pointer(sdata->u.ap.proberesp, new); synchronize_rcu(); kfree(old); return 0; } #endif static int ieee80211_set_channel(struct wiphy *wiphy, struct net_device *netdev, struct ieee80211_channel *chan, enum nl80211_channel_type channel_type) { struct ieee80211_local *local = wiphy_priv(wiphy); struct ieee80211_channel_state *chan_state; struct ieee80211_sub_if_data *sdata = NULL; struct ieee80211_channel *old_oper; enum nl80211_channel_type old_oper_type; enum nl80211_channel_type old_vif_oper_type = NL80211_CHAN_NO_HT; if (WARN(!netdev, "Cannot set channel without a specific interface. \n" "Monitor interface cannot have a channel set, yet. \n")) { return -ENOTSUPP; } sdata = IEEE80211_DEV_TO_SUB_IF(netdev); chan_state = ieee80211_get_channel_state(local, sdata); switch (mac80211_get_channel_mode(local, NULL)) { case CHAN_MODE_HOPPING: return -EBUSY; case CHAN_MODE_FIXED: if (!sdata && chan_state->_oper_channel_type == channel_type) return 0; break; case CHAN_MODE_UNDEFINED: break; } if (sdata) old_vif_oper_type = sdata->vif.bss_conf.channel_type; old_oper_type = chan_state->_oper_channel_type; if (!mac80211_set_channel_type(local, sdata, channel_type)) return -EBUSY; old_oper = chan_state->oper_channel; chan_state->oper_channel = chan; /* Update driver if changes were actually made. */ if ((old_oper != chan_state->oper_channel) || (old_oper_type != chan_state->_oper_channel_type)) mac80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL); if ((sdata && sdata->vif.type != NL80211_IFTYPE_MONITOR) && old_vif_oper_type != sdata->vif.bss_conf.channel_type) mac80211_bss_info_change_notify(sdata, BSS_CHANGED_HT); return 0; } static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, struct cfg80211_ap_settings *params) { struct ieee80211_sub_if_data *sdata; struct beacon_data *old; enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; #ifdef PROBE_RESP_EXTRA_IE struct proberesp_data *old_proberesp; int ret = 0; #endif sdata = IEEE80211_DEV_TO_SUB_IF(dev); switch (params->chandef.width) { case NL80211_CHAN_WIDTH_20_NOHT: channel_type = NL80211_CHAN_NO_HT; break; case NL80211_CHAN_WIDTH_20: channel_type = NL80211_CHAN_HT20; break; case NL80211_CHAN_WIDTH_40: if(params->chandef.center_freq1 == params->chandef.chan->center_freq + 10) channel_type = NL80211_CHAN_HT40PLUS; else if(params->chandef.center_freq1 == params->chandef.chan->center_freq - 10) channel_type = NL80211_CHAN_HT40MINUS; break; case NL80211_CHAN_WIDTH_80: case NL80211_CHAN_WIDTH_80P80: case NL80211_CHAN_WIDTH_160: printk(KERN_ERR "can't support bigger 40 width mode"); return -ENOTSUPP; break; default: return -EINVAL; } ret = ieee80211_set_channel(wiphy, dev,params->chandef.chan, channel_type); if(ret) return ret; old = rtnl_dereference(sdata->u.ap.beacon); if (old) return -EALREADY; #ifdef PROBE_RESP_EXTRA_IE old_proberesp = rtnl_dereference(sdata->u.ap.proberesp); if (old_proberesp) return -EALREADY; ret = ieee80211_config_proberesp(sdata, params); if (!ret) ret = ieee80211_config_beacon(sdata, params); return ret; #else return ieee80211_config_beacon(sdata, params); #endif } static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, struct cfg80211_beacon_data *params) { struct ieee80211_sub_if_data *sdata; struct beacon_data *old; #ifdef PROBE_RESP_EXTRA_IE struct proberesp_data *old_proberesp; int ret = 0; #endif sdata = IEEE80211_DEV_TO_SUB_IF(dev); old = rtnl_dereference(sdata->u.ap.beacon); if (!old) return -ENOENT; #ifdef PROBE_RESP_EXTRA_IE old_proberesp = rtnl_dereference(sdata->u.ap.proberesp); if (!old_proberesp) return -ENOENT; ret = ieee80211_change_config_proberesp(sdata, params); if (!ret) ret = ieee80211_change_config_beacon(sdata, params); return ret; #else return ieee80211_change_config_beacon(sdata, params); #endif } static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) { struct ieee80211_sub_if_data *sdata; struct beacon_data *old; #ifdef PROBE_RESP_EXTRA_IE struct proberesp_data *old_proberesp; #endif sdata = IEEE80211_DEV_TO_SUB_IF(dev); old = rtnl_dereference(sdata->u.ap.beacon); if (!old) return -ENOENT; RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); synchronize_rcu(); kfree(old); #ifdef PROBE_RESP_EXTRA_IE old_proberesp = rtnl_dereference(sdata->u.ap.proberesp); if (!old_proberesp) return -ENOENT; rcu_assign_pointer(sdata->u.ap.proberesp, NULL); synchronize_rcu(); kfree(old_proberesp); #endif mac80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); return 0; } static int ieee80211_set_monitor_channel(struct wiphy *wiphy, struct cfg80211_chan_def *chandef) { struct ieee80211_local *local = wiphy_priv(wiphy); struct ieee80211_sub_if_data *sdata; struct net_device *dev = NULL; int ret = 0; enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; list_for_each_entry_rcu(sdata, &local->interfaces, list) { if (sdata->vif.type != NL80211_IFTYPE_MONITOR) continue; if (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES) continue; if (!ieee80211_sdata_running(sdata)) continue; dev = sdata->dev; } switch (chandef->width) { case NL80211_CHAN_WIDTH_20_NOHT: channel_type = NL80211_CHAN_NO_HT; break; case NL80211_CHAN_WIDTH_20: channel_type = NL80211_CHAN_HT20; break; case NL80211_CHAN_WIDTH_40: if(chandef->center_freq1 == chandef->chan->center_freq + 10) channel_type = NL80211_CHAN_HT40PLUS; else if(chandef->center_freq1 == chandef->chan->center_freq - 10) channel_type = NL80211_CHAN_HT40MINUS; break; case NL80211_CHAN_WIDTH_80: case NL80211_CHAN_WIDTH_80P80: case NL80211_CHAN_WIDTH_160: printk(KERN_ERR "can't support bigger 40 width mode"); return -ENOTSUPP; default: return -EINVAL; } ret = ieee80211_set_channel(wiphy, dev,chandef->chan, channel_type); if(ret) return ret; return 0; } /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */ struct iapp_layer2_update { u8 da[ETH_ALEN]; /* broadcast */ u8 sa[ETH_ALEN]; /* STA addr */ __be16 len; /* 6 */ u8 dsap; /* 0 */ u8 ssap; /* 0 */ u8 control; u8 xid_info[3]; } __packed; static void ieee80211_send_layer2_update(struct sta_info *sta) { struct iapp_layer2_update *msg; struct sk_buff *skb; /* Send Level 2 Update Frame to update forwarding tables in layer 2 * bridge devices */ skb = dev_alloc_skb(sizeof(*msg)); if (!skb) return; msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg)); /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID) * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */ memset(msg->da, 0xff, ETH_ALEN); memcpy(msg->sa, sta->sta.addr, ETH_ALEN); msg->len = htons(6); msg->dsap = 0; msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */ msg->control = 0xaf; /* XID response lsb.1111F101. * F=0 (no poll command; unsolicited frame) */ msg->xid_info[0] = 0x81; /* XID format identifier */ msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */ msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */ skb->dev = sta->sdata->dev; skb->protocol = eth_type_trans(skb, sta->sdata->dev); memset(skb->cb, 0, sizeof(skb->cb)); netif_rx_ni(skb); } static void sta_apply_parameters(struct ieee80211_local *local, struct sta_info *sta, struct station_parameters *params) { u32 rates; int i, j; struct ieee80211_supported_band *sband; struct ieee80211_sub_if_data *sdata = sta->sdata; struct ieee80211_channel_state *chan_state = ieee80211_get_channel_state(local, sdata); u32 mask, set; sband = local->hw.wiphy->bands[chan_state->oper_channel->band]; mask = params->sta_flags_mask; set = params->sta_flags_set; if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) set_sta_flag(sta, WLAN_STA_AUTHORIZED); else clear_sta_flag(sta, WLAN_STA_AUTHORIZED); } if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); else clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); } if (mask & BIT(NL80211_STA_FLAG_WME)) { if (set & BIT(NL80211_STA_FLAG_WME)) { set_sta_flag(sta, WLAN_STA_WME); sta->sta.wme = true; } else { clear_sta_flag(sta, WLAN_STA_WME); sta->sta.wme = false; } } if (mask & BIT(NL80211_STA_FLAG_MFP)) { if (set & BIT(NL80211_STA_FLAG_MFP)) set_sta_flag(sta, WLAN_STA_MFP); else clear_sta_flag(sta, WLAN_STA_MFP); } if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) { if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) set_sta_flag(sta, WLAN_STA_AUTH); else clear_sta_flag(sta, WLAN_STA_AUTH); } if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) set_sta_flag(sta, WLAN_STA_TDLS_PEER); else clear_sta_flag(sta, WLAN_STA_TDLS_PEER); } if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { sta->sta.uapsd_queues = params->uapsd_queues; sta->sta.max_sp = params->max_sp; } /* * cfg80211 validates this (1-2007) and allows setting the AID * only when creating a new station entry */ if (params->aid) sta->sta.aid = params->aid; /* * FIXME: updating the following information is racy when this * function is called from ieee80211_change_station(). * However, all this information should be static so * maybe we should just reject attemps to change it. */ if (params->listen_interval >= 0) sta->listen_interval = params->listen_interval; if (params->supported_rates) { rates = 0; for (i = 0; i < params->supported_rates_len; i++) { int rate = (params->supported_rates[i] & 0x7f) * 5; for (j = 0; j < sband->n_bitrates; j++) { if (sband->bitrates[j].bitrate == rate) rates |= BIT(j); } } sta->sta.supp_rates[chan_state->oper_channel->band] = rates; } if (params->ht_capa) mac80211_ht_cap_ie_to_sta_ht_cap(sband, params->ht_capa, &sta->sta.ht_cap); if (ieee80211_vif_is_mesh(&sdata->vif)) { #ifdef CONFIG_XRMAC_MESH if (sdata->u.mesh.security & IEEE80211_MESH_SEC_SECURED) switch (params->plink_state) { case NL80211_PLINK_LISTEN: case NL80211_PLINK_ESTAB: case NL80211_PLINK_BLOCKED: sta->plink_state = params->plink_state; break; default: /* nothing */ break; } else switch (params->plink_action) { case PLINK_ACTION_OPEN: xrmac_mesh_plink_open(sta); break; case PLINK_ACTION_BLOCK: xrmac_mesh_plink_block(sta); break; } #endif } } static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, const u8 *mac, struct station_parameters *params) { struct ieee80211_local *local = wiphy_priv(wiphy); struct sta_info *sta; struct ieee80211_sub_if_data *sdata; int err; int layer2_update; if (params->vlan) { sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && sdata->vif.type != NL80211_IFTYPE_AP) return -EINVAL; } else sdata = IEEE80211_DEV_TO_SUB_IF(dev); if (compare_ether_addr(mac, sdata->vif.addr) == 0) return -EINVAL; if (is_multicast_ether_addr(mac)) return -EINVAL; /* Only TDLS-supporting stations can add TDLS peers */ if ((params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) && !((wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) && sdata->vif.type == NL80211_IFTYPE_STATION)) return -ENOTSUPP; sta = xrmac_sta_info_alloc(sdata, mac, GFP_KERNEL); if (!sta) return -ENOMEM; set_sta_flag(sta, WLAN_STA_AUTH); set_sta_flag(sta, WLAN_STA_ASSOC); sta_apply_parameters(local, sta, params); rate_control_rate_init(sta); layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN || sdata->vif.type == NL80211_IFTYPE_AP; err = xrmac_sta_info_insert_rcu(sta); if (err) { rcu_read_unlock(); return err; } if (layer2_update) ieee80211_send_layer2_update(sta); rcu_read_unlock(); return 0; } static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, struct station_del_parameters *params) { struct ieee80211_local *local = wiphy_priv(wiphy); struct ieee80211_sub_if_data *sdata; sdata = IEEE80211_DEV_TO_SUB_IF(dev); if (params->mac) return xrmac_sta_info_destroy_addr_bss(sdata, params->mac); xrmac_sta_info_flush(local, sdata); return 0; } static int ieee80211_change_station(struct wiphy *wiphy, struct net_device *dev, const u8 *mac, struct station_parameters *params) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct ieee80211_local *local = wiphy_priv(wiphy); struct sta_info *sta; struct ieee80211_sub_if_data *vlansdata; rcu_read_lock(); sta = xrmac_sta_info_get_bss(sdata, mac); if (!sta) { rcu_read_unlock(); return -ENOENT; } /* The TDLS bit cannot be toggled after the STA was added */ if ((params->sta_flags_mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) && !!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) != !!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { rcu_read_unlock(); return -EINVAL; } if (params->vlan && params->vlan != sta->sdata->dev) { vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN && vlansdata->vif.type != NL80211_IFTYPE_AP) { rcu_read_unlock(); return -EINVAL; } if (params->vlan->ieee80211_ptr->use_4addr) { if (vlansdata->u.vlan.sta) { rcu_read_unlock(); return -EBUSY; } rcu_assign_pointer(vlansdata->u.vlan.sta, sta); } sta->sdata = vlansdata; ieee80211_send_layer2_update(sta); } sta_apply_parameters(local, sta, params); rcu_read_unlock(); if (sdata->vif.type == NL80211_IFTYPE_STATION && params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) mac80211_recalc_ps(local, -1); return 0; } #ifdef CONFIG_XRMAC_MESH static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, const u8 *dst, u8 *next_hop) { struct ieee80211_sub_if_data *sdata; struct mesh_path *mpath; struct sta_info *sta; int err; sdata = IEEE80211_DEV_TO_SUB_IF(dev); rcu_read_lock(); sta = xrmac_sta_info_get(sdata, next_hop); if (!sta) { rcu_read_unlock(); return -ENOENT; } err = xrmac_mesh_path_add(dst, sdata); if (err) { rcu_read_unlock(); return err; } mpath = xrmac_mesh_path_lookup(dst, sdata); if (!mpath) { rcu_read_unlock(); return -ENXIO; } xrmac_mesh_path_fix_nexthop(mpath, sta); rcu_read_unlock(); return 0; } static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, u8 *dst) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); if (dst) return xrmac_mesh_path_del(dst, sdata); xrmac_mesh_path_flush_by_iface(sdata); return 0; } static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev, const u8 *dst, const u8 *next_hop) { struct ieee80211_sub_if_data *sdata; struct mesh_path *mpath; struct sta_info *sta; sdata = IEEE80211_DEV_TO_SUB_IF(dev); rcu_read_lock(); sta = xrmac_sta_info_get(sdata, next_hop); if (!sta) { rcu_read_unlock(); return -ENOENT; } mpath = xrmac_mesh_path_lookup(dst, sdata); if (!mpath) { rcu_read_unlock(); return -ENOENT; } xrmac_mesh_path_fix_nexthop(mpath, sta); rcu_read_unlock(); return 0; } static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, struct mpath_info *pinfo) { struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); if (next_hop_sta) memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); else memset(next_hop, 0, ETH_ALEN); pinfo->generation = xrmac_mesh_paths_generation; pinfo->filled = MPATH_INFO_FRAME_QLEN | MPATH_INFO_SN | MPATH_INFO_METRIC | MPATH_INFO_EXPTIME | MPATH_INFO_DISCOVERY_TIMEOUT | MPATH_INFO_DISCOVERY_RETRIES | MPATH_INFO_FLAGS; pinfo->frame_qlen = mpath->frame_queue.qlen; pinfo->sn = mpath->sn; pinfo->metric = mpath->metric; if (time_before(jiffies, mpath->exp_time)) pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); pinfo->discovery_timeout = jiffies_to_msecs(mpath->discovery_timeout); pinfo->discovery_retries = mpath->discovery_retries; pinfo->flags = 0; if (mpath->flags & MESH_PATH_ACTIVE) pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; if (mpath->flags & MESH_PATH_RESOLVING) pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; if (mpath->flags & MESH_PATH_SN_VALID) pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; if (mpath->flags & MESH_PATH_FIXED) pinfo->flags |= NL80211_MPATH_FLAG_FIXED; if (mpath->flags & MESH_PATH_RESOLVING) pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; pinfo->flags = mpath->flags; } static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, u8 *dst, u8 *next_hop, struct mpath_info *pinfo) { struct ieee80211_sub_if_data *sdata; struct mesh_path *mpath; sdata = IEEE80211_DEV_TO_SUB_IF(dev); rcu_read_lock(); mpath = xrmac_mesh_path_lookup(dst, sdata); if (!mpath) { rcu_read_unlock(); return -ENOENT; } memcpy(dst, mpath->dst, ETH_ALEN); mpath_set_pinfo(mpath, next_hop, pinfo); rcu_read_unlock(); return 0; } static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, int idx, u8 *dst, u8 *next_hop, struct mpath_info *pinfo) { struct ieee80211_sub_if_data *sdata; struct mesh_path *mpath; sdata = IEEE80211_DEV_TO_SUB_IF(dev); rcu_read_lock(); mpath = xrmac_mesh_path_lookup_by_idx(idx, sdata); if (!mpath) { rcu_read_unlock(); return -ENOENT; } memcpy(dst, mpath->dst, ETH_ALEN); mpath_set_pinfo(mpath, next_hop, pinfo); rcu_read_unlock(); return 0; } static int ieee80211_get_mesh_config(struct wiphy *wiphy, struct net_device *dev, struct mesh_config *conf) { struct ieee80211_sub_if_data *sdata; sdata = IEEE80211_DEV_TO_SUB_IF(dev); memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); return 0; } static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) { return (mask >> (parm-1)) & 0x1; } static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, const struct mesh_setup *setup) { u8 *new_ie; const u8 *old_ie; /* allocate information elements */ new_ie = NULL; old_ie = ifmsh->ie; if (setup->ie_len) { new_ie = kmemdup(setup->ie, setup->ie_len, GFP_KERNEL); if (!new_ie) return -ENOMEM; } ifmsh->ie_len = setup->ie_len; ifmsh->ie = new_ie; kfree(old_ie); /* now copy the rest of the setup parameters */ ifmsh->mesh_id_len = setup->mesh_id_len; memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); ifmsh->mesh_pp_id = setup->path_sel_proto; ifmsh->mesh_pm_id = setup->path_metric; ifmsh->security = IEEE80211_MESH_SEC_NONE; if (setup->is_authenticated) ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; if (setup->is_secure) ifmsh->security |= IEEE80211_MESH_SEC_SECURED; return 0; } static int ieee80211_update_mesh_config(struct wiphy *wiphy, struct net_device *dev, u32 mask, const struct mesh_config *nconf) { struct mesh_config *conf; struct ieee80211_sub_if_data *sdata; struct ieee80211_if_mesh *ifmsh; sdata = IEEE80211_DEV_TO_SUB_IF(dev); ifmsh = &sdata->u.mesh; /* Set the config options which we are interested in setting */ conf = &(sdata->u.mesh.mshcfg); if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) conf->dot11MeshTTL = nconf->dot11MeshTTL; if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) conf->dot11MeshTTL = nconf->element_ttl; if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) conf->auto_open_plinks = nconf->auto_open_plinks; if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) conf->dot11MeshHWMPmaxPREQretries = nconf->dot11MeshHWMPmaxPREQretries; if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) conf->path_refresh_time = nconf->path_refresh_time; if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) conf->min_discovery_timeout = nconf->min_discovery_timeout; if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) conf->dot11MeshHWMPactivePathTimeout = nconf->dot11MeshHWMPactivePathTimeout; if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) conf->dot11MeshHWMPpreqMinInterval = nconf->dot11MeshHWMPpreqMinInterval; if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, mask)) conf->dot11MeshHWMPnetDiameterTraversalTime = nconf->dot11MeshHWMPnetDiameterTraversalTime; if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; mac80211_mesh_root_setup(ifmsh); } if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { /* our current gate announcement implementation rides on root * announcements, so require this ifmsh to also be a root node * */ if (nconf->dot11MeshGateAnnouncementProtocol && !conf->dot11MeshHWMPRootMode) { conf->dot11MeshHWMPRootMode = 1; mac80211_mesh_root_setup(ifmsh); } conf->dot11MeshGateAnnouncementProtocol = nconf->dot11MeshGateAnnouncementProtocol; } if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) { conf->dot11MeshHWMPRannInterval = nconf->dot11MeshHWMPRannInterval; } return 0; } static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, const struct mesh_config *conf, const struct mesh_setup *setup) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; int err; memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); err = copy_mesh_setup(ifmsh, setup); if (err) return err; mac80211_start_mesh(sdata); return 0; } static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); mac80211_stop_mesh(sdata); return 0; } #endif static int ieee80211_change_bss(struct wiphy *wiphy, struct net_device *dev, struct bss_parameters *params) { struct ieee80211_sub_if_data *sdata; struct ieee80211_channel_state *chan_state; u32 changed = 0; sdata = IEEE80211_DEV_TO_SUB_IF(dev); chan_state = ieee80211_get_channel_state(sdata->local, sdata); if (params->use_cts_prot >= 0) { sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot; changed |= BSS_CHANGED_ERP_CTS_PROT; } if (params->use_short_preamble >= 0) { sdata->vif.bss_conf.use_short_preamble = params->use_short_preamble; changed |= BSS_CHANGED_ERP_PREAMBLE; } if (!sdata->vif.bss_conf.use_short_slot && chan_state->conf.channel->band == NL80211_BAND_5GHZ) { sdata->vif.bss_conf.use_short_slot = true; changed |= BSS_CHANGED_ERP_SLOT; } if (params->use_short_slot_time >= 0) { sdata->vif.bss_conf.use_short_slot = params->use_short_slot_time; changed |= BSS_CHANGED_ERP_SLOT; } if (params->basic_rates) { int i, j; u32 rates = 0; struct ieee80211_supported_band *sband = wiphy->bands[chan_state->oper_channel->band]; for (i = 0; i < params->basic_rates_len; i++) { int rate = (params->basic_rates[i] & 0x7f) * 5; for (j = 0; j < sband->n_bitrates; j++) { if (sband->bitrates[j].bitrate == rate) rates |= BIT(j); } } sdata->vif.bss_conf.basic_rates = rates; changed |= BSS_CHANGED_BASIC_RATES; } if (params->ap_isolate >= 0) { if (params->ap_isolate) sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; else sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; } if (params->ht_opmode >= 0) { sdata->vif.bss_conf.ht_operation_mode = (u16) params->ht_opmode; changed |= BSS_CHANGED_HT; } mac80211_bss_info_change_notify(sdata, changed); return 0; } static int ieee80211_set_txq_params(struct wiphy *wiphy, struct net_device *dev, struct ieee80211_txq_params *params) { struct ieee80211_local *local = wiphy_priv(wiphy); struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct ieee80211_tx_queue_params p; if (!local->ops->conf_tx) return -EOPNOTSUPP; if (local->hw.queues < IEEE80211_NUM_ACS) return -EOPNOTSUPP; memset(&p, 0, sizeof(p)); p.aifs = params->aifs; p.cw_max = params->cwmax; p.cw_min = params->cwmin; p.txop = params->txop; /* * Setting tx queue params disables u-apsd because it's only * called in master mode. */ p.uapsd = false; if (params->ac >= local->hw.queues) return -EINVAL; sdata->tx_conf[params->ac] = p; if (drv_conf_tx(local, sdata, params->ac, &p)) { wiphy_debug(local->hw.wiphy, "failed to set TX queue parameters for queue %d\n", params->ac); return -EINVAL; } return 0; } #ifdef CONFIG_PM static int ieee80211_suspend(struct wiphy *wiphy, struct cfg80211_wowlan *wowlan) { return __mac80211_suspend(wiphy_priv(wiphy), wowlan); } static int ieee80211_resume(struct wiphy *wiphy) { return __ieee80211_resume(wiphy_priv(wiphy)); } #else #define ieee80211_suspend NULL #define ieee80211_resume NULL #endif static int ieee80211_scan(struct wiphy *wiphy, /*struct net_device *dev,*/ struct cfg80211_scan_request *req) { struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); switch (ieee80211_vif_type_p2p(&sdata->vif)) { case NL80211_IFTYPE_STATION: case NL80211_IFTYPE_ADHOC: case NL80211_IFTYPE_MESH_POINT: case NL80211_IFTYPE_P2P_CLIENT: case NL80211_IFTYPE_P2P_DEVICE: break; case NL80211_IFTYPE_P2P_GO: if (sdata->local->ops->hw_scan) break; /* * FIXME: implement NoA while scanning in software, * for now fall through to allow scanning only when * beaconing hasn't been configured yet */ case NL80211_IFTYPE_AP: if (sdata->u.ap.beacon && (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || !(req->flags & NL80211_SCAN_FLAG_AP))) return -EOPNOTSUPP; break; default: return -EOPNOTSUPP; } return mac80211_request_scan(sdata, req); } static int ieee80211_sched_scan_start(struct wiphy *wiphy, struct net_device *dev, struct cfg80211_sched_scan_request *req) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); if (!sdata->local->ops->sched_scan_start) return -EOPNOTSUPP; return mac80211_request_sched_scan_start(sdata, req); } static int ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); if (!sdata->local->ops->sched_scan_stop) return -EOPNOTSUPP; return mac80211_request_sched_scan_stop(sdata); } static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, struct cfg80211_auth_request *req) { return mac80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); } static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, struct cfg80211_assoc_request *req) { struct ieee80211_local *local = wiphy_priv(wiphy); struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct ieee80211_channel_state *chan_state = ieee80211_get_channel_state(local, sdata); switch (mac80211_get_channel_mode(local, sdata)) { case CHAN_MODE_HOPPING: return -EBUSY; case CHAN_MODE_FIXED: if (chan_state->oper_channel == req->bss->channel) break; return -EBUSY; case CHAN_MODE_UNDEFINED: break; } return mac80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); } static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, struct cfg80211_deauth_request *req) { return mac80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); } static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, struct cfg80211_disassoc_request *req) { return mac80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); } static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, struct cfg80211_ibss_params *params) { struct ieee80211_local *local = wiphy_priv(wiphy); struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct ieee80211_channel_state *chan_state = ieee80211_get_channel_state(local, sdata); switch (mac80211_get_channel_mode(local, sdata)) { case CHAN_MODE_HOPPING: return -EBUSY; case CHAN_MODE_FIXED: if (!params->channel_fixed) return -EBUSY; if (chan_state->oper_channel == params->chandef.chan) break; return -EBUSY; case CHAN_MODE_UNDEFINED: break; } return mac80211_ibss_join(sdata, params); } static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); return mac80211_ibss_leave(sdata); } static int ieee80211_set_wiphy_params(struct wiphy *wiphy,u32 changed) { struct ieee80211_local *local = wiphy_priv(wiphy); struct ieee80211_sub_if_data *sdata; int err; u32 bss_changed = 0; if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { err = drv_set_frag_threshold(local, wiphy->frag_threshold); if (err) return err; } if (changed & WIPHY_PARAM_COVERAGE_CLASS) { err = drv_set_coverage_class(local, wiphy->coverage_class); if (err) return err; } list_for_each_entry_rcu(sdata, &local->interfaces, list) { if (!sdata) continue; if (changed & WIPHY_PARAM_RTS_THRESHOLD) { err = drv_set_rts_threshold(local, sdata, wiphy->rts_threshold); if (err) return err; } if ((changed & WIPHY_PARAM_RETRY_SHORT) || (changed & WIPHY_PARAM_RETRY_LONG)) { sdata->vif.bss_conf.retry_short = wiphy->retry_short; sdata->vif.bss_conf.retry_long = wiphy->retry_long; bss_changed |= BSS_CHANGED_RETRY_LIMITS; } drv_bss_info_changed(local, sdata, &sdata->vif.bss_conf, bss_changed); } return 0; } /* static int ieee80211_set_tx_power(struct wiphy *wiphy, enum nl80211_tx_power_setting type, int mbm) */ static int ieee80211_set_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev, enum nl80211_tx_power_setting type, int mbm) { struct ieee80211_local *local = wiphy_priv(wiphy); struct ieee80211_sub_if_data *sdata; struct ieee80211_channel *chan; u32 changes = 0; switch (type) { case NL80211_TX_POWER_AUTOMATIC: local->user_power_level = -1; break; case NL80211_TX_POWER_LIMITED: if (mbm < 0 || (mbm % 100)) return -EOPNOTSUPP; local->user_power_level = MBM_TO_DBM(mbm); break; case NL80211_TX_POWER_FIXED: if (mbm < 0 || (mbm % 100)) return -EOPNOTSUPP; /* TODO: move to cfg80211 when it knows the channel */ if (local->hw.flags & IEEE80211_HW_SUPPORTS_MULTI_CHANNEL) { rcu_read_lock(); list_for_each_entry_rcu(sdata, &local->interfaces, list) { chan = sdata->chan_state.conf.channel; if (MBM_TO_DBM(mbm) > chan->max_power) { rcu_read_unlock(); return -EINVAL; } } rcu_read_unlock(); } else { chan = local->chan_state.conf.channel; if (MBM_TO_DBM(mbm) > chan->max_power) return -EINVAL; } local->user_power_level = MBM_TO_DBM(mbm); break; } mac80211_hw_config(local, changes); return 0; } /*static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)*/ static int ieee80211_get_tx_power(struct wiphy *wiphy, struct wireless_dev *wdev, int *dbm) { struct ieee80211_local *local = wiphy_priv(wiphy); *dbm = local->hw.conf.power_level; return 0; } static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev, const u8 *addr) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN); return 0; } static void ieee80211_rfkill_poll(struct wiphy *wiphy) { struct ieee80211_local *local = wiphy_priv(wiphy); drv_rfkill_poll(local); } #ifdef CONFIG_NL80211_TESTMODE static int ieee80211_testmode_cmd(struct wiphy *wiphy, struct wireless_dev *wdev, void *data, int len) { struct ieee80211_local *local = wiphy_priv(wiphy); if (!local->ops->testmode_cmd) return -EOPNOTSUPP; return local->ops->testmode_cmd(&local->hw, data, len); } static int ieee80211_testmode_dump(struct wiphy *wiphy, struct sk_buff *skb, struct netlink_callback *cb, void *data, int len) { struct ieee80211_local *local = wiphy_priv(wiphy); if (!local->ops->testmode_dump) return -EOPNOTSUPP; return local->ops->testmode_dump(&local->hw, skb, cb, data, len); } #endif int __mac80211_request_smps(struct ieee80211_sub_if_data *sdata, enum ieee80211_smps_mode smps_mode) { const u8 *ap; enum ieee80211_smps_mode old_req; int err; lockdep_assert_held(&sdata->u.mgd.mtx); old_req = sdata->u.mgd.req_smps; sdata->u.mgd.req_smps = smps_mode; if (old_req == smps_mode && smps_mode != IEEE80211_SMPS_AUTOMATIC) return 0; /* * If not associated, or current association is not an HT * association, there's no need to send an action frame. */ if (!sdata->u.mgd.associated || sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT) { mutex_lock(&sdata->local->iflist_mtx); mac80211_recalc_smps(sdata->local); mutex_unlock(&sdata->local->iflist_mtx); return 0; } ap = sdata->u.mgd.associated->bssid; if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { if (sdata->u.mgd.powersave) smps_mode = IEEE80211_SMPS_DYNAMIC; else smps_mode = IEEE80211_SMPS_OFF; } /* send SM PS frame to AP */ err = mac80211_send_smps_action(sdata, smps_mode, ap, ap); if (err) sdata->u.mgd.req_smps = old_req; return err; } static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, bool enabled, int timeout) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); if (sdata->vif.type != NL80211_IFTYPE_STATION) return -EOPNOTSUPP; if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS)) return -EOPNOTSUPP; if (enabled == sdata->u.mgd.powersave && timeout == sdata->dynamic_ps_forced_timeout) return 0; sdata->u.mgd.powersave = enabled; sdata->dynamic_ps_forced_timeout = timeout; /* no change, but if automatic follow powersave */ mutex_lock(&sdata->u.mgd.mtx); __mac80211_request_smps(sdata, sdata->u.mgd.req_smps); mutex_unlock(&sdata->u.mgd.mtx); if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS) mac80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); mac80211_recalc_ps(local, -1); return 0; } #if 0 static void ieee80211_update_p2p_ps(struct ieee80211_sub_if_data *sdata, struct cfg80211_p2p_ps *new_p2p_ps) { struct ieee80211_bss_conf *conf = &sdata->vif.bss_conf; struct cfg80211_p2p_ps *p2p_ps = &conf->p2p_ps; if (new_p2p_ps->count != -1) p2p_ps->count = new_p2p_ps->count; if (new_p2p_ps->start != -1) p2p_ps->start = new_p2p_ps->start; if (new_p2p_ps->duration != -1) p2p_ps->duration = new_p2p_ps->duration; if (new_p2p_ps->interval != -1) p2p_ps->interval = new_p2p_ps->interval; if (new_p2p_ps->legacy_ps != -1) p2p_ps->legacy_ps = new_p2p_ps->legacy_ps; if (new_p2p_ps->opp_ps != -1) p2p_ps->opp_ps = new_p2p_ps->opp_ps; if (new_p2p_ps->ctwindow != -1) p2p_ps->ctwindow = new_p2p_ps->ctwindow; if (new_p2p_ps->index != -1) p2p_ps->index = new_p2p_ps->index; } #endif #if 0 static int ieee80211_set_p2p_power_mgmt(struct wiphy *wiphy, struct net_device *dev, struct cfg80211_p2p_ps *p2p_ps) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); if (!sdata->vif.p2p) return -EOPNOTSUPP; if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_P2P_PS)) return -EOPNOTSUPP; ieee80211_update_p2p_ps(sdata, p2p_ps); mac80211_bss_info_change_notify(sdata, BSS_CHANGED_P2P_PS); return 0; } #endif static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, struct net_device *dev, s32 rssi_thold, u32 rssi_hyst) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); struct ieee80211_vif *vif = &sdata->vif; struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; if (rssi_thold == bss_conf->cqm_rssi_thold && rssi_hyst == bss_conf->cqm_rssi_hyst) return 0; bss_conf->cqm_rssi_thold = rssi_thold; bss_conf->cqm_rssi_hyst = rssi_hyst; if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_RSSI)) { if (sdata->vif.type != NL80211_IFTYPE_STATION) return -EOPNOTSUPP; return 0; } /* tell the driver upon association, unless already associated */ if (sdata->u.mgd.associated) mac80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); return 0; } #if 0 static int ieee80211_set_cqm_beacon_miss_config(struct wiphy *wiphy, struct net_device *dev, u32 beacon_thold) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); struct ieee80211_vif *vif = &sdata->vif; struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; if (beacon_thold == bss_conf->cqm_beacon_miss_thold) return 0; bss_conf->cqm_beacon_miss_thold = beacon_thold; if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_BEACON_MISS)) { if (sdata->vif.type != NL80211_IFTYPE_STATION) return -EOPNOTSUPP; return 0; } if (sdata->u.mgd.associated) mac80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); return 0; } static int ieee80211_set_cqm_tx_fail_config(struct wiphy *wiphy, struct net_device *dev, u32 tx_thold) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); struct ieee80211_vif *vif = &sdata->vif; struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; if (tx_thold == bss_conf->cqm_tx_fail_thold) return 0; bss_conf->cqm_tx_fail_thold = tx_thold; if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_TX_FAIL)) { if (sdata->vif.type != NL80211_IFTYPE_STATION) return -EOPNOTSUPP; return 0; } if (sdata->u.mgd.associated) mac80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); return 0; } #endif static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, struct net_device *dev, const u8 *addr, const struct cfg80211_bitrate_mask *mask) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); int i, ret; if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) { ret = drv_set_bitrate_mask(local, sdata, mask); if (ret) return ret; } for (i = 0; i < NUM_NL80211_BANDS; i++) sdata->rc_rateidx_mask[i] = mask->control[i].legacy; return 0; } static int ieee80211_start_roc_work(struct ieee80211_local *local, struct net_device *dev, struct ieee80211_sub_if_data *sdata, struct ieee80211_channel *channel, /*enum nl80211_channel_type channel_type,*/ unsigned int duration, u64 *cookie, struct sk_buff *txskb) { struct ieee80211_roc_work *roc, *tmp; bool queued = false; int ret; lockdep_assert_held(&local->mtx); #if 0 if (local->use_chanctx && !local->ops->remain_on_channel) return -EOPNOTSUPP; #endif roc = kzalloc(sizeof(*roc), GFP_KERNEL); if (!roc) return -ENOMEM; roc->hw_roc_dev = dev; roc->chan = channel; roc->duration = duration; roc->req_duration = duration; roc->frame = txskb; roc->mgmt_tx_cookie = (unsigned long)txskb; roc->sdata = sdata; INIT_DELAYED_WORK(&roc->work, mac80211_sw_roc_work); INIT_LIST_HEAD(&roc->dependents); /* if there's one pending or we're scanning, queue this one */ if (!list_empty(&local->roc_list) || local->scanning) goto out_check_combine; /* if not HW assist, just queue & schedule work */ if (!local->ops->remain_on_channel) { mac80211_queue_delayed_work(&local->hw, &roc->work, 0); goto out_queue; } /* otherwise actually kick it off here (for error handling) */ /* * If the duration is zero, then the driver * wouldn't actually do anything. Set it to * 10 for now. * * TODO: cancel the off-channel operation * when we get the SKB's TX status and * the wait time was zero before. */ if (!duration) duration = 100; ret = drv_remain_on_channel(local, sdata, channel, NL80211_CHAN_NO_HT, duration, (txskb ? roc->mgmt_tx_cookie : (local->roc_cookie_counter + 1))); if (ret) { kfree(roc); return ret; } local->hw_roc_channel = channel; roc->started = true; goto out_queue; out_check_combine: list_for_each_entry(tmp, &local->roc_list, list) { if (tmp->chan != channel || tmp->sdata != sdata) continue; /* * Extend this ROC if possible: * * If it hasn't started yet, just increase the duration * and add the new one to the list of dependents. */ if (!tmp->started) { list_add_tail(&roc->list, &tmp->dependents); tmp->duration = max(tmp->duration, roc->duration); queued = true; break; } /* If it has already started, it's more difficult ... */ if (local->ops->remain_on_channel) { unsigned long j = jiffies; /* * In the offloaded ROC case, if it hasn't begun, add * this new one to the dependent list to be handled * when the the master one begins. If it has begun, * check that there's still a minimum time left and * if so, start this one, transmitting the frame, but * add it to the list directly after this one with a * a reduced time so we'll ask the driver to execute * it right after finishing the previous one, in the * hope that it'll also be executed right afterwards, * effectively extending the old one. * If there's no minimum time left, just add it to the * normal list. */ if (!tmp->hw_begun) { list_add_tail(&roc->list, &tmp->dependents); queued = true; break; } if (time_before(j + IEEE80211_ROC_MIN_LEFT, tmp->hw_start_time + msecs_to_jiffies(tmp->duration))) { int new_dur; mac80211_handle_roc_started(roc); new_dur = roc->duration - jiffies_to_msecs(tmp->hw_start_time + msecs_to_jiffies( tmp->duration) - j); if (new_dur > 0) { /* add right after tmp */ list_add(&roc->list, &tmp->list); } else { list_add_tail(&roc->list, &tmp->dependents); } queued = true; } } else if (del_timer_sync(&tmp->work.timer)) { unsigned long new_end; /* * In the software ROC case, cancel the timer, if * that fails then the finish work is already * queued/pending and thus we queue the new ROC * normally, if that succeeds then we can extend * the timer duration and TX the frame (if any.) */ list_add_tail(&roc->list, &tmp->dependents); queued = true; new_end = jiffies + msecs_to_jiffies(roc->duration); /* ok, it was started & we canceled timer */ if (time_after(new_end, tmp->work.timer.expires)) mod_timer(&tmp->work.timer, new_end); else add_timer(&tmp->work.timer); mac80211_handle_roc_started(roc); } break; } out_queue: if (!queued) list_add_tail(&roc->list, &local->roc_list); /* * cookie is either the roc cookie (for normal roc) * or the SKB (for mgmt TX) */ if (!txskb) { /* local->mtx protects this */ local->roc_cookie_counter++; roc->cookie = local->roc_cookie_counter; /* wow, you wrapped 64 bits ... more likely a bug */ if (WARN_ON(roc->cookie == 0)) { roc->cookie = 1; local->roc_cookie_counter++; } *cookie = roc->cookie; } else { *cookie = (unsigned long)txskb; } return 0; } /* static int ieee80211_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) */ static int ieee80211_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev, struct ieee80211_channel *chan, unsigned int duration, u64 *cookie) { struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); struct ieee80211_local *local = sdata->local; int ret; mutex_lock(&local->mtx); ret = ieee80211_start_roc_work(local, sdata->dev, sdata, chan, duration, cookie, NULL); mutex_unlock(&local->mtx); return ret; } static int ieee80211_cancel_roc(struct ieee80211_local *local, u64 cookie, bool mgmt_tx) { struct ieee80211_roc_work *roc, *tmp, *found = NULL; int ret; mutex_lock(&local->mtx); list_for_each_entry_safe(roc, tmp, &local->roc_list, list) { struct ieee80211_roc_work *dep, *tmp2; list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) { if (!mgmt_tx && dep->cookie != cookie) continue; else if (mgmt_tx && dep->mgmt_tx_cookie != cookie) continue; /* found dependent item -- just remove it */ list_del(&dep->list); mutex_unlock(&local->mtx); mac80211_roc_notify_destroy(dep); return 0; } if (!mgmt_tx && roc->cookie != cookie) continue; else if (mgmt_tx && roc->mgmt_tx_cookie != cookie) continue; found = roc; break; } if (!found) { mutex_unlock(&local->mtx); return -ENOENT; } /* * We found the item to cancel, so do that. Note that it * may have dependents, which we also cancel (and send * the expired signal for.) Not doing so would be quite * tricky here, but we may need to fix it later. */ if (local->ops->remain_on_channel) { if (found->started) { ret = drv_cancel_remain_on_channel(local); if (WARN_ON_ONCE(ret)) { mutex_unlock(&local->mtx); return ret; } local->hw_roc_channel = NULL; } list_del(&found->list); if (found->started) mac80211_start_next_roc(local); mutex_unlock(&local->mtx); mac80211_roc_notify_destroy(found); } else { /* work may be pending so use it all the time */ found->abort = true; mac80211_queue_delayed_work(&local->hw, &found->work, 0); mutex_unlock(&local->mtx); /* work will clean up etc */ flush_delayed_work(&found->work); } return 0; } static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy, struct wireless_dev *wdev, u64 cookie) { struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); struct ieee80211_local *local = sdata->local; return ieee80211_cancel_roc(local, cookie, false); } #if 0 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy, struct net_device *dev, u64 cookie) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct ieee80211_local *local = sdata->local; return ieee80211_cancel_roc(local, cookie, false); } #endif /* static int ieee80211_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) */ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, struct cfg80211_mgmt_tx_params *params, u64 *cookie) { struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); struct ieee80211_local *local = sdata->local; struct ieee80211_channel_state *chan_state = ieee80211_get_channel_state(local, sdata); struct sk_buff *skb; struct sta_info *sta; /* struct ieee80211_work *wk; */ const struct ieee80211_mgmt *mgmt = (void *)(params->buf); u32 flags; /* u32 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX | IEEE80211_TX_CTL_REQ_TX_STATUS; */ bool is_offchan = false; int ret; unsigned long j, rem = 0; struct ieee80211_roc_work *roc = NULL; if (params->dont_wait_for_ack) flags = IEEE80211_TX_CTL_NO_ACK; else flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX | IEEE80211_TX_CTL_REQ_TX_STATUS; /* Check that we are on the requested channel for transmission */ if (params->chan != chan_state->tmp_channel && params->chan != chan_state->oper_channel) is_offchan = true; /* if (channel_type_valid && (channel_type != chan_state->tmp_channel_type && channel_type != chan_state->_oper_channel_type)) is_offchan = true; */ if (params->chan == local->hw_roc_channel) { /* TODO: check channel type? */ is_offchan = false; flags |= IEEE80211_TX_CTL_TX_OFFCHAN; } if (params->no_cck) flags |= IEEE80211_TX_CTL_NO_CCK_RATE; if (is_offchan && !params->offchan) return -EBUSY; switch (sdata->vif.type) { case NL80211_IFTYPE_ADHOC: case NL80211_IFTYPE_AP: case NL80211_IFTYPE_AP_VLAN: case NL80211_IFTYPE_P2P_GO: case NL80211_IFTYPE_MESH_POINT: if (!ieee80211_is_action(mgmt->frame_control) || mgmt->u.action.category == WLAN_CATEGORY_PUBLIC) break; rcu_read_lock(); sta = xrmac_sta_info_get(sdata, mgmt->da); rcu_read_unlock(); if (!sta) return -ENOLINK; break; case NL80211_IFTYPE_STATION: case NL80211_IFTYPE_P2P_CLIENT: break; default: return -EOPNOTSUPP; } skb = dev_alloc_skb(local->hw.extra_tx_headroom + params->len); if (!skb) { return -ENOMEM; } skb_reserve(skb, local->hw.extra_tx_headroom); memcpy(skb_put(skb, params->len), params->buf, params->len); IEEE80211_SKB_CB(skb)->flags = flags; if (flags & IEEE80211_TX_CTL_TX_OFFCHAN) IEEE80211_SKB_CB(skb)->hw_queue = local->hw.offchannel_tx_hw_queue; skb->dev = sdata->dev; mutex_lock(&local->mtx); /* * Can transmit right away if the channel was the * right one and there's no wait involved... If a * wait is involved, we might otherwise not be on * the right channel for long enough! */ if (!list_empty(&local->roc_list)) { roc = list_first_entry(&local->roc_list, struct ieee80211_roc_work, list); j = jiffies; if (roc->started) rem = jiffies_to_msecs(roc->hw_start_time + msecs_to_jiffies(roc->duration) - j); } /*if (!is_offchan && !wait && !sdata->vif.bss_conf.idle) {*/ if (!is_offchan && !ieee80211_is_probe_resp(mgmt->frame_control) && roc && roc->started && (rem < 20)) { is_offchan = true; } mutex_unlock(&local->mtx); if (!is_offchan) { *cookie = (unsigned long) skb; ieee80211_tx_skb(sdata, skb); return 0; } mutex_lock(&local->mtx); if (!params->wait) params->wait = 100; /* This will handle all kinds of coalescing and immediate TX */ ret = ieee80211_start_roc_work(local, sdata->dev, sdata, params->chan, params->wait, cookie, skb); if (ret) kfree_skb(skb); mutex_unlock(&local->mtx); return ret; } /* static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy, struct net_device *dev, u64 cookie) */ static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy, struct wireless_dev *wdev, u64 cookie) { /*struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);*/ struct ieee80211_local *local = wiphy_priv(wiphy); return ieee80211_cancel_roc(local, cookie, true); } static void ieee80211_mgmt_frame_register(struct wiphy *wiphy, struct wireless_dev *wdev, u16 frame_type, bool reg) { struct ieee80211_local *local = wiphy_priv(wiphy); struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); if (frame_type != (IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ)) return; if (reg) sdata->req_filt_flags |= FIF_PROBE_REQ; else sdata->req_filt_flags &= ~FIF_PROBE_REQ; mac80211_queue_work(&local->hw, &sdata->reconfig_filter); } static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) { struct ieee80211_local *local = wiphy_priv(wiphy); if (local->started) return -EOPNOTSUPP; return drv_set_antenna(local, tx_ant, rx_ant); } static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) { struct ieee80211_local *local = wiphy_priv(wiphy); return drv_get_antenna(local, tx_ant, rx_ant); } /* linux4.4 delete interface ieee80211_set_ringparam and ieee80211_get_ringparam */ /* static int ieee80211_set_ringparam(struct wiphy *wiphy, u32 tx, u32 rx) { struct ieee80211_local *local = wiphy_priv(wiphy); return drv_set_ringparam(local, tx, rx); } static void ieee80211_get_ringparam(struct wiphy *wiphy, u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max) { struct ieee80211_local *local = wiphy_priv(wiphy); drv_get_ringparam(local, tx, tx_max, rx, rx_max); } */ #ifdef CONFIG_XRADIO_TESTMODE static int ieee80211_set_acm_up(struct wiphy *wiphy, struct net_device *net_dev, u8 enable_up, u8 update_up) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(net_dev); struct ieee80211_local *local = sdata->local; unsigned int access_category = 0; switch (update_up) { case 1: case 2: access_category |= BIT(1) | BIT(2); /* BK/- */ break; case 4: case 5: access_category |= BIT(4) | BIT(5); /* CL/VI */ break; case 6: case 7: access_category |= BIT(6) | BIT(7); /* VO/NC */ break; default: access_category |= BIT(0) | BIT(3); /* BE/EE */ break; } if (enable_up == 1) local->wmm_admitted_ups |= access_category; else local->wmm_admitted_ups &= ~access_category; return 0; } #endif /*CONFIG_XRADIO_TESTMODE*/ static int ieee80211_set_rekey_data(struct wiphy *wiphy, struct net_device *dev, struct cfg80211_gtk_rekey_data *data) { struct ieee80211_local *local = wiphy_priv(wiphy); struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); if (!local->ops->set_rekey_data) return -EOPNOTSUPP; drv_set_rekey_data(local, sdata, data); return 0; } static void ieee80211_tdls_add_ext_capab(struct sk_buff *skb) { u8 *pos = (void *)skb_put(skb, 7); *pos++ = WLAN_EID_EXT_CAPABILITY; *pos++ = 5; /* len */ *pos++ = 0x0; *pos++ = 0x0; *pos++ = 0x0; *pos++ = 0x0; *pos++ = WLAN_EXT_CAPA5_TDLS_ENABLED; } static u16 ieee80211_get_tdls_sta_capab(struct ieee80211_sub_if_data *sdata) { struct ieee80211_local *local = sdata->local; struct ieee80211_channel_state *chan_state = ieee80211_get_channel_state(local, sdata); u16 capab; capab = 0; if (chan_state->oper_channel->band != NL80211_BAND_2GHZ) return capab; if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE)) capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME; if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE)) capab |= WLAN_CAPABILITY_SHORT_PREAMBLE; return capab; } static void ieee80211_tdls_add_link_ie(struct sk_buff *skb, const u8 *src_addr, const u8 *peer, u8 *bssid) { struct ieee80211_tdls_lnkie *lnkid; lnkid = (void *)skb_put(skb, sizeof(struct ieee80211_tdls_lnkie)); lnkid->ie_type = WLAN_EID_LINK_ID; lnkid->ie_len = sizeof(struct ieee80211_tdls_lnkie) - 2; memcpy(lnkid->bssid, bssid, ETH_ALEN); memcpy(lnkid->init_sta, src_addr, ETH_ALEN); memcpy(lnkid->resp_sta, peer, ETH_ALEN); } static int ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev, const u8 *peer, u8 action_code, u8 dialog_token, u16 status_code, struct sk_buff *skb) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct ieee80211_tdls_data *tf; tf = (void *)skb_put(skb, offsetof(struct ieee80211_tdls_data, u)); memcpy(tf->da, peer, ETH_ALEN); memcpy(tf->sa, sdata->vif.addr, ETH_ALEN); tf->ether_type = cpu_to_be16(ETH_P_TDLS); tf->payload_type = WLAN_TDLS_SNAP_RFTYPE; switch (action_code) { case WLAN_TDLS_SETUP_REQUEST: tf->category = WLAN_CATEGORY_TDLS; tf->action_code = WLAN_TDLS_SETUP_REQUEST; skb_put(skb, sizeof(tf->u.setup_req)); tf->u.setup_req.dialog_token = dialog_token; tf->u.setup_req.capability = cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata)); mac80211_add_srates_ie(&sdata->vif, skb); mac80211_add_ext_srates_ie(&sdata->vif, skb); ieee80211_tdls_add_ext_capab(skb); break; case WLAN_TDLS_SETUP_RESPONSE: tf->category = WLAN_CATEGORY_TDLS; tf->action_code = WLAN_TDLS_SETUP_RESPONSE; skb_put(skb, sizeof(tf->u.setup_resp)); tf->u.setup_resp.status_code = cpu_to_le16(status_code); tf->u.setup_resp.dialog_token = dialog_token; tf->u.setup_resp.capability = cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata)); mac80211_add_srates_ie(&sdata->vif, skb); mac80211_add_ext_srates_ie(&sdata->vif, skb); ieee80211_tdls_add_ext_capab(skb); break; case WLAN_TDLS_SETUP_CONFIRM: tf->category = WLAN_CATEGORY_TDLS; tf->action_code = WLAN_TDLS_SETUP_CONFIRM; skb_put(skb, sizeof(tf->u.setup_cfm)); tf->u.setup_cfm.status_code = cpu_to_le16(status_code); tf->u.setup_cfm.dialog_token = dialog_token; break; case WLAN_TDLS_TEARDOWN: tf->category = WLAN_CATEGORY_TDLS; tf->action_code = WLAN_TDLS_TEARDOWN; skb_put(skb, sizeof(tf->u.teardown)); tf->u.teardown.reason_code = cpu_to_le16(status_code); break; case WLAN_TDLS_DISCOVERY_REQUEST: tf->category = WLAN_CATEGORY_TDLS; tf->action_code = WLAN_TDLS_DISCOVERY_REQUEST; skb_put(skb, sizeof(tf->u.discover_req)); tf->u.discover_req.dialog_token = dialog_token; break; default: return -EINVAL; } return 0; } static int ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev, const u8 *peer, u8 action_code, u8 dialog_token, u16 status_code, struct sk_buff *skb) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct ieee80211_mgmt *mgmt; mgmt = (void *)skb_put(skb, 24); memset(mgmt, 0, 24); memcpy(mgmt->da, peer, ETH_ALEN); memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN); mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_ACTION); switch (action_code) { case WLAN_PUB_ACTION_TDLS_DISCOVER_RES: skb_put(skb, 1 + sizeof(mgmt->u.action.u.tdls_discover_resp)); mgmt->u.action.category = WLAN_CATEGORY_PUBLIC; mgmt->u.action.u.tdls_discover_resp.action_code = WLAN_PUB_ACTION_TDLS_DISCOVER_RES; mgmt->u.action.u.tdls_discover_resp.dialog_token = dialog_token; mgmt->u.action.u.tdls_discover_resp.capability = cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata)); mac80211_add_srates_ie(&sdata->vif, skb); mac80211_add_ext_srates_ie(&sdata->vif, skb); ieee80211_tdls_add_ext_capab(skb); break; default: return -EINVAL; } return 0; } int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev, const u8 *peer, u8 action_code, u8 dialog_token, u16 status_code, u32 peer_capability, bool initiator, const u8 *extra_ies, size_t extra_ies_len) { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct ieee80211_local *local = sdata->local; struct ieee80211_tx_info *info; struct sk_buff *skb = NULL; bool send_direct; int ret; if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS)) return -ENOTSUPP; /* make sure we are in managed mode, and associated */ if (sdata->vif.type != NL80211_IFTYPE_STATION || !sdata->u.mgd.associated) return -EINVAL; #ifdef CONFIG_XRMAC_VERBOSE_TDLS_DEBUG printk(KERN_DEBUG "TDLS mgmt action %d peer %pM\n", action_code, peer); #endif skb = dev_alloc_skb(local->hw.extra_tx_headroom + max(sizeof(struct ieee80211_mgmt), sizeof(struct ieee80211_tdls_data)) + 50 + /* supported rates */ 7 + /* ext capab */ extra_ies_len + sizeof(struct ieee80211_tdls_lnkie)); if (!skb) return -ENOMEM; info = IEEE80211_SKB_CB(skb); skb_reserve(skb, local->hw.extra_tx_headroom); switch (action_code) { case WLAN_TDLS_SETUP_REQUEST: case WLAN_TDLS_SETUP_RESPONSE: case WLAN_TDLS_SETUP_CONFIRM: case WLAN_TDLS_TEARDOWN: case WLAN_TDLS_DISCOVERY_REQUEST: ret = ieee80211_prep_tdls_encap_data(wiphy, dev, peer, action_code, dialog_token, status_code, skb); send_direct = false; break; case WLAN_PUB_ACTION_TDLS_DISCOVER_RES: ret = ieee80211_prep_tdls_direct(wiphy, dev, peer, action_code, dialog_token, status_code, skb); send_direct = true; break; default: ret = -ENOTSUPP; break; } if (ret < 0) goto fail; if (extra_ies_len) memcpy(skb_put(skb, extra_ies_len), extra_ies, extra_ies_len); /* the TDLS link IE is always added last */ switch (action_code) { case WLAN_TDLS_SETUP_REQUEST: case WLAN_TDLS_SETUP_CONFIRM: case WLAN_TDLS_TEARDOWN: case WLAN_TDLS_DISCOVERY_REQUEST: /* we are the initiator */ ieee80211_tdls_add_link_ie(skb, sdata->vif.addr, peer, sdata->u.mgd.bssid); break; case WLAN_TDLS_SETUP_RESPONSE: case WLAN_PUB_ACTION_TDLS_DISCOVER_RES: /* we are the responder */ ieee80211_tdls_add_link_ie(skb, peer, sdata->vif.addr, sdata->u.mgd.bssid); break; default: ret = -ENOTSUPP; goto fail; } if (send_direct) { ieee80211_tx_skb(sdata, skb); return 0; } /* * According to 802.11z: Setup req/resp are sent in AC_BK, otherwise * we should default to AC_VI. */ switch (action_code) { case WLAN_TDLS_SETUP_REQUEST: case WLAN_TDLS_SETUP_RESPONSE: skb_set_queue_mapping(skb, IEEE80211_AC_BK); skb->priority = 2; break; default: skb_set_queue_mapping(skb, IEEE80211_AC_VI); skb->priority = 5; break; } /* disable bottom halves when entering the Tx path */ local_bh_disable(); ret = mac80211_subif_start_xmit(skb, dev); local_bh_enable(); return ret; fail: dev_kfree_skb(skb); return ret; } static int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev, const u8 *peer, enum nl80211_tdls_operation oper) { struct sta_info *sta; struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS)) return -ENOTSUPP; if (sdata->vif.type != NL80211_IFTYPE_STATION) return -EINVAL; #ifdef CONFIG_XRMAC_VERBOSE_TDLS_DEBUG printk(KERN_DEBUG "TDLS oper %d peer %pM\n", oper, peer); #endif switch (oper) { case NL80211_TDLS_ENABLE_LINK: rcu_read_lock(); sta = xrmac_sta_info_get(sdata, peer); if (!sta) { rcu_read_unlock(); return -ENOLINK; } set_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH); rcu_read_unlock(); break; case NL80211_TDLS_DISABLE_LINK: return xrmac_sta_info_destroy_addr(sdata, peer); case NL80211_TDLS_TEARDOWN: case NL80211_TDLS_SETUP: case NL80211_TDLS_DISCOVERY_REQ: /* We don't support in-driver setup/teardown/discovery */ return -ENOTSUPP; default: return -ENOTSUPP; } return 0; } #if 0 static int ieee80211_set_data_filter(struct wiphy *wiphy, struct net_device *dev, void *data, int len) { struct ieee80211_local *local = wiphy_priv(wiphy); struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); drv_set_data_filter(local, sdata, data, len); return 0; } #endif struct cfg80211_ops xrmac_config_ops = { .add_virtual_intf = ieee80211_add_iface, .del_virtual_intf = ieee80211_del_iface, .change_virtual_intf = ieee80211_change_iface, .add_key = ieee80211_add_key, .del_key = ieee80211_del_key, .get_key = ieee80211_get_key, .set_default_key = ieee80211_config_default_key, .set_default_mgmt_key = ieee80211_config_default_mgmt_key, .start_ap = ieee80211_start_ap, .change_beacon = ieee80211_change_beacon, .stop_ap = ieee80211_stop_ap, .add_station = ieee80211_add_station, .del_station = ieee80211_del_station, .change_station = ieee80211_change_station, .get_station = ieee80211_get_station, .dump_station = ieee80211_dump_station, .dump_survey = ieee80211_dump_survey, #ifdef CONFIG_XRMAC_MESH .add_mpath = ieee80211_add_mpath, .del_mpath = ieee80211_del_mpath, .change_mpath = ieee80211_change_mpath, .get_mpath = ieee80211_get_mpath, .dump_mpath = ieee80211_dump_mpath, .update_mesh_config = ieee80211_update_mesh_config, .get_mesh_config = ieee80211_get_mesh_config, .join_mesh = ieee80211_join_mesh, .leave_mesh = ieee80211_leave_mesh, #endif .change_bss = ieee80211_change_bss, .set_txq_params = ieee80211_set_txq_params, .set_monitor_channel = ieee80211_set_monitor_channel, /*.set_channel = ieee80211_set_channel,*/ .suspend = ieee80211_suspend, .resume = ieee80211_resume, .scan = ieee80211_scan, .sched_scan_start = ieee80211_sched_scan_start, .sched_scan_stop = ieee80211_sched_scan_stop, .auth = ieee80211_auth, .assoc = ieee80211_assoc, .deauth = ieee80211_deauth, .disassoc = ieee80211_disassoc, .join_ibss = ieee80211_join_ibss, .leave_ibss = ieee80211_leave_ibss, .set_wiphy_params = ieee80211_set_wiphy_params, .set_tx_power = ieee80211_set_tx_power, .get_tx_power = ieee80211_get_tx_power, .set_wds_peer = ieee80211_set_wds_peer, .rfkill_poll = ieee80211_rfkill_poll, CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) .set_power_mgmt = ieee80211_set_power_mgmt, .set_bitrate_mask = ieee80211_set_bitrate_mask, .remain_on_channel = ieee80211_remain_on_channel, .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, .mgmt_tx = ieee80211_mgmt_tx, .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, /* .set_cqm_beacon_miss_config = ieee80211_set_cqm_beacon_miss_config, .set_cqm_tx_fail_config = ieee80211_set_cqm_tx_fail_config, */ .mgmt_frame_register = ieee80211_mgmt_frame_register, .set_antenna = ieee80211_set_antenna, .get_antenna = ieee80211_get_antenna, .set_rekey_data = ieee80211_set_rekey_data, .tdls_oper = ieee80211_tdls_oper, .tdls_mgmt = ieee80211_tdls_mgmt, /* .set_p2p_power_mgmt = ieee80211_set_p2p_power_mgmt, .set_data_filter = ieee80211_set_data_filter, #ifdef CONFIG_XRADIO_TESTMODE .update_acm_up = ieee80211_set_acm_up, #endif *//*CONFIG_XRADIO_TESTMODE*/ };