| /* |
| * mac80211 configuration hooks for cfg80211 |
| * |
| * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net> |
| * |
| * This file is GPLv2 as found in COPYING. |
| */ |
| |
| #include <linux/ieee80211.h> |
| #include <linux/nl80211.h> |
| #include <linux/rtnetlink.h> |
| #include <linux/slab.h> |
| #include <net/net_namespace.h> |
| #include <linux/rcupdate.h> |
| #include <net/cfg80211.h> |
| #include "ieee80211_i.h" |
| #include "driver-ops.h" |
| #include "cfg.h" |
| #include "rate.h" |
| #include "mesh.h" |
| |
| static int ieee80211_add_iface(struct wiphy *wiphy, char *name, |
| enum nl80211_iftype type, u32 *flags, |
| struct vif_params *params) |
| { |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| struct net_device *dev; |
| struct ieee80211_sub_if_data *sdata; |
| int err; |
| |
| err = ieee80211_if_add(local, name, &dev, type, params); |
| if (err || type != NL80211_IFTYPE_MONITOR || !flags) |
| return err; |
| |
| sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| sdata->u.mntr_flags = *flags; |
| return 0; |
| } |
| |
| static int ieee80211_del_iface(struct wiphy *wiphy, struct net_device *dev) |
| { |
| ieee80211_if_remove(IEEE80211_DEV_TO_SUB_IF(dev)); |
| |
| return 0; |
| } |
| |
| 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 = ieee80211_if_change_type(sdata, type); |
| if (ret) |
| return ret; |
| |
| if (ieee80211_vif_is_mesh(&sdata->vif) && params->mesh_id_len) |
| ieee80211_sdata_set_mesh_id(sdata, |
| params->mesh_id_len, |
| params->mesh_id); |
| |
| if (type == NL80211_IFTYPE_AP_VLAN && |
| params && params->use_4addr == 0) |
| rcu_assign_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) { |
| struct ieee80211_local *local = sdata->local; |
| |
| 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; |
| |
| ieee80211_adjust_monitor_flags(sdata, -1); |
| sdata->u.mntr_flags = *flags; |
| ieee80211_adjust_monitor_flags(sdata, 1); |
| |
| ieee80211_configure_filter(local); |
| } 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, 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 = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, |
| params->key, params->seq_len, params->seq); |
| if (IS_ERR(key)) |
| return PTR_ERR(key); |
| |
| mutex_lock(&sdata->local->sta_mtx); |
| |
| if (mac_addr) { |
| sta = sta_info_get_bss(sdata, mac_addr); |
| if (!sta) { |
| ieee80211_key_free(sdata->local, key); |
| err = -ENOENT; |
| goto out_unlock; |
| } |
| } |
| |
| err = ieee80211_key_link(key, sdata, sta); |
| if (err) |
| ieee80211_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, const u8 *mac_addr) |
| { |
| struct ieee80211_sub_if_data *sdata; |
| struct sta_info *sta; |
| int ret; |
| |
| sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| mutex_lock(&sdata->local->sta_mtx); |
| |
| if (mac_addr) { |
| ret = -ENOENT; |
| |
| sta = sta_info_get_bss(sdata, mac_addr); |
| if (!sta) |
| goto out_unlock; |
| |
| if (sta->key) { |
| ieee80211_key_free(sdata->local, sta->key); |
| WARN_ON(sta->key); |
| ret = 0; |
| } |
| |
| goto out_unlock; |
| } |
| |
| if (!sdata->keys[key_idx]) { |
| ret = -ENOENT; |
| goto out_unlock; |
| } |
| |
| ieee80211_key_free(sdata->local, sdata->keys[key_idx]); |
| WARN_ON(sdata->keys[key_idx]); |
| |
| ret = 0; |
| out_unlock: |
| mutex_unlock(&sdata->local->sta_mtx); |
| |
| return ret; |
| } |
| |
| static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, |
| u8 key_idx, 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; |
| u32 iv32; |
| u16 iv16; |
| int err = -ENOENT; |
| |
| sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| rcu_read_lock(); |
| |
| if (mac_addr) { |
| sta = sta_info_get_bss(sdata, mac_addr); |
| if (!sta) |
| goto out; |
| |
| key = sta->key; |
| } else |
| key = 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: |
| seq[0] = key->u.ccmp.tx_pn[5]; |
| seq[1] = key->u.ccmp.tx_pn[4]; |
| seq[2] = key->u.ccmp.tx_pn[3]; |
| seq[3] = key->u.ccmp.tx_pn[2]; |
| seq[4] = key->u.ccmp.tx_pn[1]; |
| seq[5] = key->u.ccmp.tx_pn[0]; |
| params.seq = seq; |
| params.seq_len = 6; |
| break; |
| case WLAN_CIPHER_SUITE_AES_CMAC: |
| seq[0] = key->u.aes_cmac.tx_pn[5]; |
| seq[1] = key->u.aes_cmac.tx_pn[4]; |
| seq[2] = key->u.aes_cmac.tx_pn[3]; |
| seq[3] = key->u.aes_cmac.tx_pn[2]; |
| seq[4] = key->u.aes_cmac.tx_pn[1]; |
| seq[5] = key->u.aes_cmac.tx_pn[0]; |
| 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) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| ieee80211_set_default_key(sdata, key_idx); |
| |
| 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); |
| |
| ieee80211_set_default_mgmt_key(sdata, key_idx); |
| |
| return 0; |
| } |
| |
| static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo) |
| { |
| struct ieee80211_sub_if_data *sdata = sta->sdata; |
| |
| sinfo->generation = sdata->local->sta_generation; |
| |
| sinfo->filled = STATION_INFO_INACTIVE_TIME | |
| STATION_INFO_RX_BYTES | |
| STATION_INFO_TX_BYTES | |
| STATION_INFO_RX_PACKETS | |
| STATION_INFO_TX_PACKETS | |
| STATION_INFO_TX_BITRATE; |
| |
| 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; |
| |
| if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) || |
| (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) { |
| sinfo->filled |= STATION_INFO_SIGNAL; |
| sinfo->signal = (s8)sta->last_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.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH; |
| if (sta->last_tx_rate.flags & IEEE80211_TX_RC_SHORT_GI) |
| sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI; |
| |
| if (!(sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)) { |
| struct ieee80211_supported_band *sband; |
| sband = sta->local->hw.wiphy->bands[ |
| sta->local->hw.conf.channel->band]; |
| sinfo->txrate.legacy = |
| sband->bitrates[sta->last_tx_rate.idx].bitrate; |
| } else |
| sinfo->txrate.mcs = sta->last_tx_rate.idx; |
| |
| if (ieee80211_vif_is_mesh(&sdata->vif)) { |
| #ifdef CONFIG_MAC80211_MESH |
| sinfo->filled |= STATION_INFO_LLID | |
| STATION_INFO_PLID | |
| STATION_INFO_PLINK_STATE; |
| |
| sinfo->llid = le16_to_cpu(sta->llid); |
| sinfo->plid = le16_to_cpu(sta->plid); |
| sinfo->plink_state = sta->plink_state; |
| #endif |
| } |
| } |
| |
| |
| 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 = 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, |
| 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 = sta_info_get_bss(sdata, mac); |
| if (sta) { |
| ret = 0; |
| sta_set_sinfo(sta, sinfo); |
| } |
| |
| rcu_read_unlock(); |
| |
| return ret; |
| } |
| |
| /* |
| * This handles both adding a beacon and setting new beacon info |
| */ |
| static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata, |
| struct beacon_parameters *params) |
| { |
| struct beacon_data *new, *old; |
| int new_head_len, new_tail_len; |
| int size; |
| int err = -EINVAL; |
| |
| old = 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 (params->interval && |
| (sdata->vif.bss_conf.beacon_int != params->interval)) { |
| sdata->vif.bss_conf.beacon_int = params->interval; |
| ieee80211_bss_info_change_notify(sdata, |
| BSS_CHANGED_BEACON_INT); |
| } |
| |
| /* 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); |
| |
| synchronize_rcu(); |
| |
| kfree(old); |
| |
| ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED | |
| BSS_CHANGED_BEACON); |
| return 0; |
| } |
| |
| static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev, |
| struct beacon_parameters *params) |
| { |
| struct ieee80211_sub_if_data *sdata; |
| struct beacon_data *old; |
| |
| sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| old = sdata->u.ap.beacon; |
| |
| if (old) |
| return -EALREADY; |
| |
| return ieee80211_config_beacon(sdata, params); |
| } |
| |
| static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev, |
| struct beacon_parameters *params) |
| { |
| struct ieee80211_sub_if_data *sdata; |
| struct beacon_data *old; |
| |
| sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| old = sdata->u.ap.beacon; |
| |
| if (!old) |
| return -ENOENT; |
| |
| return ieee80211_config_beacon(sdata, params); |
| } |
| |
| static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev) |
| { |
| struct ieee80211_sub_if_data *sdata; |
| struct beacon_data *old; |
| |
| sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| old = sdata->u.ap.beacon; |
| |
| if (!old) |
| return -ENOENT; |
| |
| rcu_assign_pointer(sdata->u.ap.beacon, NULL); |
| synchronize_rcu(); |
| kfree(old); |
| |
| ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); |
| 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) |
| { |
| unsigned long flags; |
| u32 rates; |
| int i, j; |
| struct ieee80211_supported_band *sband; |
| struct ieee80211_sub_if_data *sdata = sta->sdata; |
| u32 mask, set; |
| |
| sband = local->hw.wiphy->bands[local->oper_channel->band]; |
| |
| spin_lock_irqsave(&sta->flaglock, flags); |
| mask = params->sta_flags_mask; |
| set = params->sta_flags_set; |
| |
| if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { |
| sta->flags &= ~WLAN_STA_AUTHORIZED; |
| if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) |
| sta->flags |= WLAN_STA_AUTHORIZED; |
| } |
| |
| if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { |
| sta->flags &= ~WLAN_STA_SHORT_PREAMBLE; |
| if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) |
| sta->flags |= WLAN_STA_SHORT_PREAMBLE; |
| } |
| |
| if (mask & BIT(NL80211_STA_FLAG_WME)) { |
| sta->flags &= ~WLAN_STA_WME; |
| if (set & BIT(NL80211_STA_FLAG_WME)) |
| sta->flags |= WLAN_STA_WME; |
| } |
| |
| if (mask & BIT(NL80211_STA_FLAG_MFP)) { |
| sta->flags &= ~WLAN_STA_MFP; |
| if (set & BIT(NL80211_STA_FLAG_MFP)) |
| sta->flags |= WLAN_STA_MFP; |
| } |
| spin_unlock_irqrestore(&sta->flaglock, flags); |
| |
| /* |
| * 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[local->oper_channel->band] = rates; |
| } |
| |
| if (params->ht_capa) |
| ieee80211_ht_cap_ie_to_sta_ht_cap(sband, |
| params->ht_capa, |
| &sta->sta.ht_cap); |
| |
| if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) { |
| switch (params->plink_action) { |
| case PLINK_ACTION_OPEN: |
| mesh_plink_open(sta); |
| break; |
| case PLINK_ACTION_BLOCK: |
| mesh_plink_block(sta); |
| break; |
| } |
| } |
| } |
| |
| static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, |
| 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; |
| |
| sta = sta_info_alloc(sdata, mac, GFP_KERNEL); |
| if (!sta) |
| return -ENOMEM; |
| |
| sta->flags = WLAN_STA_AUTH | 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 = 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, |
| u8 *mac) |
| { |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| struct ieee80211_sub_if_data *sdata; |
| |
| sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| if (mac) |
| return sta_info_destroy_addr_bss(sdata, mac); |
| |
| sta_info_flush(local, sdata); |
| return 0; |
| } |
| |
| static int ieee80211_change_station(struct wiphy *wiphy, |
| struct net_device *dev, |
| 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 = sta_info_get_bss(sdata, mac); |
| if (!sta) { |
| rcu_read_unlock(); |
| return -ENOENT; |
| } |
| |
| 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(); |
| |
| return 0; |
| } |
| |
| #ifdef CONFIG_MAC80211_MESH |
| static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, |
| 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 = sta_info_get(sdata, next_hop); |
| if (!sta) { |
| rcu_read_unlock(); |
| return -ENOENT; |
| } |
| |
| err = mesh_path_add(dst, sdata); |
| if (err) { |
| rcu_read_unlock(); |
| return err; |
| } |
| |
| mpath = mesh_path_lookup(dst, sdata); |
| if (!mpath) { |
| rcu_read_unlock(); |
| return -ENXIO; |
| } |
| 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 mesh_path_del(dst, sdata); |
| |
| mesh_path_flush(sdata); |
| return 0; |
| } |
| |
| static int ieee80211_change_mpath(struct wiphy *wiphy, |
| struct net_device *dev, |
| u8 *dst, 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 = sta_info_get(sdata, next_hop); |
| if (!sta) { |
| rcu_read_unlock(); |
| return -ENOENT; |
| } |
| |
| mpath = mesh_path_lookup(dst, sdata); |
| if (!mpath) { |
| rcu_read_unlock(); |
| return -ENOENT; |
| } |
| |
| 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) |
| { |
| if (mpath->next_hop) |
| memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN); |
| else |
| memset(next_hop, 0, ETH_ALEN); |
| |
| pinfo->generation = 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 = 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 = 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_params(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 ieee80211_set_mesh_params(struct wiphy *wiphy, |
| struct net_device *dev, |
| const struct mesh_config *nconf, u32 mask) |
| { |
| 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_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; |
| ieee80211_mesh_root_setup(ifmsh); |
| } |
| 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; |
| u32 changed = 0; |
| |
| sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| 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 && |
| sdata->local->hw.conf.channel->band == IEEE80211_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_local *local = wiphy_priv(wiphy); |
| struct ieee80211_supported_band *sband = |
| wiphy->bands[local->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; |
| } |
| |
| ieee80211_bss_info_change_notify(sdata, changed); |
| |
| return 0; |
| } |
| |
| static int ieee80211_set_txq_params(struct wiphy *wiphy, |
| struct ieee80211_txq_params *params) |
| { |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| struct ieee80211_tx_queue_params p; |
| |
| if (!local->ops->conf_tx) |
| 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 (drv_conf_tx(local, params->queue, &p)) { |
| wiphy_debug(local->hw.wiphy, |
| "failed to set TX queue parameters for queue %d\n", |
| params->queue); |
| return -EINVAL; |
| } |
| |
| return 0; |
| } |
| |
| 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_sub_if_data *sdata = NULL; |
| |
| if (netdev) |
| sdata = IEEE80211_DEV_TO_SUB_IF(netdev); |
| |
| switch (ieee80211_get_channel_mode(local, NULL)) { |
| case CHAN_MODE_HOPPING: |
| return -EBUSY; |
| case CHAN_MODE_FIXED: |
| if (local->oper_channel != chan) |
| return -EBUSY; |
| if (!sdata && local->_oper_channel_type == channel_type) |
| return 0; |
| break; |
| case CHAN_MODE_UNDEFINED: |
| break; |
| } |
| |
| local->oper_channel = chan; |
| |
| if (!ieee80211_set_channel_type(local, sdata, channel_type)) |
| return -EBUSY; |
| |
| ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL); |
| if (sdata && sdata->vif.type != NL80211_IFTYPE_MONITOR) |
| ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT); |
| |
| return 0; |
| } |
| |
| #ifdef CONFIG_PM |
| static int ieee80211_suspend(struct wiphy *wiphy) |
| { |
| return __ieee80211_suspend(wiphy_priv(wiphy)); |
| } |
| |
| 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_DEV_TO_SUB_IF(dev); |
| |
| 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: |
| break; |
| case NL80211_IFTYPE_P2P_GO: |
| if (sdata->local->ops->hw_scan) |
| break; |
| /* FIXME: implement NoA while scanning in software */ |
| return -EOPNOTSUPP; |
| case NL80211_IFTYPE_AP: |
| if (sdata->u.ap.beacon) |
| return -EOPNOTSUPP; |
| break; |
| default: |
| return -EOPNOTSUPP; |
| } |
| |
| return ieee80211_request_scan(sdata, req); |
| } |
| |
| static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, |
| struct cfg80211_auth_request *req) |
| { |
| return ieee80211_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); |
| |
| switch (ieee80211_get_channel_mode(local, sdata)) { |
| case CHAN_MODE_HOPPING: |
| return -EBUSY; |
| case CHAN_MODE_FIXED: |
| if (local->oper_channel == req->bss->channel) |
| break; |
| return -EBUSY; |
| case CHAN_MODE_UNDEFINED: |
| break; |
| } |
| |
| return ieee80211_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, |
| void *cookie) |
| { |
| return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), |
| req, cookie); |
| } |
| |
| static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, |
| struct cfg80211_disassoc_request *req, |
| void *cookie) |
| { |
| return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), |
| req, cookie); |
| } |
| |
| 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); |
| |
| switch (ieee80211_get_channel_mode(local, sdata)) { |
| case CHAN_MODE_HOPPING: |
| return -EBUSY; |
| case CHAN_MODE_FIXED: |
| if (!params->channel_fixed) |
| return -EBUSY; |
| if (local->oper_channel == params->channel) |
| break; |
| return -EBUSY; |
| case CHAN_MODE_UNDEFINED: |
| break; |
| } |
| |
| return ieee80211_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 ieee80211_ibss_leave(sdata); |
| } |
| |
| static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) |
| { |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| int err; |
| |
| if (changed & WIPHY_PARAM_COVERAGE_CLASS) { |
| err = drv_set_coverage_class(local, wiphy->coverage_class); |
| |
| if (err) |
| return err; |
| } |
| |
| if (changed & WIPHY_PARAM_RTS_THRESHOLD) { |
| err = drv_set_rts_threshold(local, wiphy->rts_threshold); |
| |
| if (err) |
| return err; |
| } |
| |
| if (changed & WIPHY_PARAM_RETRY_SHORT) |
| local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; |
| if (changed & WIPHY_PARAM_RETRY_LONG) |
| local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; |
| if (changed & |
| (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) |
| ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); |
| |
| return 0; |
| } |
| |
| static int ieee80211_set_tx_power(struct wiphy *wiphy, |
| enum nl80211_tx_power_setting type, int mbm) |
| { |
| struct ieee80211_local *local = wiphy_priv(wiphy); |
| struct ieee80211_channel *chan = local->hw.conf.channel; |
| 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 (MBM_TO_DBM(mbm) > chan->max_power) |
| return -EINVAL; |
| local->user_power_level = MBM_TO_DBM(mbm); |
| break; |
| } |
| |
| ieee80211_hw_config(local, changes); |
| |
| return 0; |
| } |
| |
| static int ieee80211_get_tx_power(struct wiphy *wiphy, 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, |
| 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, 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); |
| } |
| #endif |
| |
| int __ieee80211_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; |
| |
| 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); |
| ieee80211_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 = ieee80211_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 == local->dynamic_ps_forced_timeout) |
| return 0; |
| |
| sdata->u.mgd.powersave = enabled; |
| local->dynamic_ps_forced_timeout = timeout; |
| |
| /* no change, but if automatic follow powersave */ |
| mutex_lock(&sdata->u.mgd.mtx); |
| __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps); |
| mutex_unlock(&sdata->u.mgd.mtx); |
| |
| if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS) |
| ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); |
| |
| ieee80211_recalc_ps(local, -1); |
| |
| return 0; |
| } |
| |
| 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) |
| ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); |
| |
| return 0; |
| } |
| |
| 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; |
| |
| /* |
| * This _could_ be supported by providing a hook for |
| * drivers for this function, but at this point it |
| * doesn't seem worth bothering. |
| */ |
| if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) |
| return -EOPNOTSUPP; |
| |
| |
| for (i = 0; i < IEEE80211_NUM_BANDS; i++) |
| sdata->rc_rateidx_mask[i] = mask->control[i].legacy; |
| |
| 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) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| |
| return ieee80211_wk_remain_on_channel(sdata, chan, channel_type, |
| duration, cookie); |
| } |
| |
| 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); |
| |
| return ieee80211_wk_cancel_remain_on_channel(sdata, cookie); |
| } |
| |
| static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev, |
| struct ieee80211_channel *chan, |
| enum nl80211_channel_type channel_type, |
| bool channel_type_valid, |
| const u8 *buf, size_t len, u64 *cookie) |
| { |
| struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
| struct ieee80211_local *local = sdata->local; |
| struct sk_buff *skb; |
| struct sta_info *sta; |
| const struct ieee80211_mgmt *mgmt = (void *)buf; |
| u32 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX | |
| IEEE80211_TX_CTL_REQ_TX_STATUS; |
| |
| /* Check that we are on the requested channel for transmission */ |
| if (chan != local->tmp_channel && |
| chan != local->oper_channel) |
| return -EBUSY; |
| if (channel_type_valid && |
| (channel_type != local->tmp_channel_type && |
| channel_type != local->_oper_channel_type)) |
| return -EBUSY; |
| |
| switch (sdata->vif.type) { |
| case NL80211_IFTYPE_ADHOC: |
| case NL80211_IFTYPE_AP: |
| case NL80211_IFTYPE_AP_VLAN: |
| case NL80211_IFTYPE_P2P_GO: |
| if (!ieee80211_is_action(mgmt->frame_control) || |
| mgmt->u.action.category == WLAN_CATEGORY_PUBLIC) |
| break; |
| rcu_read_lock(); |
| sta = 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 + len); |
| if (!skb) |
| return -ENOMEM; |
| skb_reserve(skb, local->hw.extra_tx_headroom); |
| |
| memcpy(skb_put(skb, len), buf, len); |
| |
| IEEE80211_SKB_CB(skb)->flags = flags; |
| |
| skb->dev = sdata->dev; |
| ieee80211_tx_skb(sdata, skb); |
| |
| *cookie = (unsigned long) skb; |
| return 0; |
| } |
| |
| struct cfg80211_ops mac80211_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, |
| .add_beacon = ieee80211_add_beacon, |
| .set_beacon = ieee80211_set_beacon, |
| .del_beacon = ieee80211_del_beacon, |
| .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_MAC80211_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, |
| .set_mesh_params = ieee80211_set_mesh_params, |
| .get_mesh_params = ieee80211_get_mesh_params, |
| #endif |
| .change_bss = ieee80211_change_bss, |
| .set_txq_params = ieee80211_set_txq_params, |
| .set_channel = ieee80211_set_channel, |
| .suspend = ieee80211_suspend, |
| .resume = ieee80211_resume, |
| .scan = ieee80211_scan, |
| .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) |
| .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, |
| .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, |
| }; |