diff options
Diffstat (limited to 'net/mac80211/cfg.c')
| -rw-r--r-- | net/mac80211/cfg.c | 1018 |
1 files changed, 1018 insertions, 0 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c new file mode 100644 index 0000000..855126a --- /dev/null +++ b/net/mac80211/cfg.c @@ -0,0 +1,1018 @@ +/* + * mac80211 configuration hooks for cfg80211 + * + * Copyright 2006, 2007 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 <net/net_namespace.h> +#include <linux/rcupdate.h> +#include <net/cfg80211.h> +#include "ieee80211_i.h" +#include "cfg.h" +#include "rate.h" +#include "mesh.h" + +struct ieee80211_hw *wiphy_to_hw(struct wiphy *wiphy) +{ + struct ieee80211_local *local = wiphy_priv(wiphy); + return &local->hw; +} +EXPORT_SYMBOL(wiphy_to_hw); + +static bool nl80211_type_check(enum nl80211_iftype type) +{ + switch (type) { + case NL80211_IFTYPE_ADHOC: + case NL80211_IFTYPE_STATION: + case NL80211_IFTYPE_MONITOR: +#ifdef CONFIG_MAC80211_MESH + case NL80211_IFTYPE_MESH_POINT: +#endif + case NL80211_IFTYPE_WDS: + return true; + default: + return false; + } +} + +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; + + if (!nl80211_type_check(type)) + return -EINVAL; + + 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, int ifindex) +{ + struct net_device *dev; + struct ieee80211_sub_if_data *sdata; + + /* we're under RTNL */ + dev = __dev_get_by_index(&init_net, ifindex); + if (!dev) + return -ENODEV; + + sdata = IEEE80211_DEV_TO_SUB_IF(dev); + + ieee80211_if_remove(sdata); + + return 0; +} + +static int ieee80211_change_iface(struct wiphy *wiphy, int ifindex, + enum nl80211_iftype type, u32 *flags, + struct vif_params *params) +{ + struct net_device *dev; + struct ieee80211_sub_if_data *sdata; + int ret; + + /* we're under RTNL */ + dev = __dev_get_by_index(&init_net, ifindex); + if (!dev) + return -ENODEV; + + if (!nl80211_type_check(type)) + return -EINVAL; + + sdata = IEEE80211_DEV_TO_SUB_IF(dev); + + ret = ieee80211_if_change_type(sdata, type); + if (ret) + return ret; + + if (netif_running(sdata->dev)) + return -EBUSY; + + 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 (sdata->vif.type != NL80211_IFTYPE_MONITOR || !flags) + return 0; + + sdata->u.mntr_flags = *flags; + return 0; +} + +static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, + u8 key_idx, u8 *mac_addr, + struct key_params *params) +{ + struct ieee80211_sub_if_data *sdata; + struct sta_info *sta = NULL; + enum ieee80211_key_alg alg; + struct ieee80211_key *key; + int err; + + sdata = IEEE80211_DEV_TO_SUB_IF(dev); + + switch (params->cipher) { + case WLAN_CIPHER_SUITE_WEP40: + case WLAN_CIPHER_SUITE_WEP104: + alg = ALG_WEP; + break; + case WLAN_CIPHER_SUITE_TKIP: + alg = ALG_TKIP; + break; + case WLAN_CIPHER_SUITE_CCMP: + alg = ALG_CCMP; + break; + default: + return -EINVAL; + } + + key = ieee80211_key_alloc(alg, key_idx, params->key_len, params->key); + if (!key) + return -ENOMEM; + + rcu_read_lock(); + + if (mac_addr) { + sta = sta_info_get(sdata->local, mac_addr); + if (!sta) { + ieee80211_key_free(key); + err = -ENOENT; + goto out_unlock; + } + } + + ieee80211_key_link(key, sdata, sta); + + err = 0; + out_unlock: + rcu_read_unlock(); + + return err; +} + +static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, + u8 key_idx, u8 *mac_addr) +{ + struct ieee80211_sub_if_data *sdata; + struct sta_info *sta; + int ret; + + sdata = IEEE80211_DEV_TO_SUB_IF(dev); + + rcu_read_lock(); + + if (mac_addr) { + ret = -ENOENT; + + sta = sta_info_get(sdata->local, mac_addr); + if (!sta) + goto out_unlock; + + if (sta->key) { + ieee80211_key_free(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->keys[key_idx]); + WARN_ON(sdata->keys[key_idx]); + + ret = 0; + out_unlock: + rcu_read_unlock(); + + return ret; +} + +static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, + u8 key_idx, 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(sdata->local, mac_addr); + if (!sta) + goto out; + + key = sta->key; + } else + key = sdata->keys[key_idx]; + + if (!key) + goto out; + + memset(¶ms, 0, sizeof(params)); + + switch (key->conf.alg) { + case ALG_TKIP: + params.cipher = WLAN_CIPHER_SUITE_TKIP; + + iv32 = key->u.tkip.tx.iv32; + iv16 = key->u.tkip.tx.iv16; + + if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && + sdata->local->ops->get_tkip_seq) + sdata->local->ops->get_tkip_seq( + local_to_hw(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 ALG_CCMP: + params.cipher = 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 ALG_WEP: + if (key->conf.keylen == 5) + params.cipher = WLAN_CIPHER_SUITE_WEP40; + else + params.cipher = WLAN_CIPHER_SUITE_WEP104; + 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; + + rcu_read_lock(); + + sdata = IEEE80211_DEV_TO_SUB_IF(dev); + ieee80211_set_default_key(sdata, key_idx); + + rcu_read_unlock(); + + return 0; +} + +static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo) +{ + struct ieee80211_sub_if_data *sdata = sta->sdata; + + sinfo->filled = STATION_INFO_INACTIVE_TIME | + STATION_INFO_RX_BYTES | + STATION_INFO_TX_BYTES; + + sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx); + sinfo->rx_bytes = sta->rx_bytes; + sinfo->tx_bytes = sta->tx_bytes; + + 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_local *local = wdev_priv(dev->ieee80211_ptr); + struct sta_info *sta; + int ret = -ENOENT; + + rcu_read_lock(); + + sta = sta_info_get_by_idx(local, idx, dev); + if (sta) { + ret = 0; + memcpy(mac, sta->sta.addr, ETH_ALEN); + sta_set_sinfo(sta, sinfo); + } + + rcu_read_unlock(); + + return ret; +} + +static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, + u8 *mac, struct station_info *sinfo) +{ + struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); + struct sta_info *sta; + int ret = -ENOENT; + + rcu_read_lock(); + + /* XXX: verify sta->dev == dev */ + + sta = sta_info_get(local, 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->local->hw.conf.beacon_int = params->interval; + if (ieee80211_hw_config(sdata->local)) + return -EINVAL; + /* + * We updated some parameter so if below bails out + * it's not an error. + */ + err = 0; + } + + /* 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); + + rcu_assign_pointer(sdata->u.ap.beacon, new); + + synchronize_rcu(); + + kfree(old); + + return ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON); +} + +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); + + if (sdata->vif.type != NL80211_IFTYPE_AP) + return -EINVAL; + + 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); + + if (sdata->vif.type != NL80211_IFTYPE_AP) + return -EINVAL; + + 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); + + if (sdata->vif.type != NL80211_IFTYPE_AP) + return -EINVAL; + + old = sdata->u.ap.beacon; + + if (!old) + return -ENOENT; + + rcu_assign_pointer(sdata->u.ap.beacon, NULL); + synchronize_rcu(); + kfree(old); + + return ieee80211_if_config(sdata, IEEE80211_IFCC_BEACON); +} + +/* 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]; +} __attribute__ ((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(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; + + /* + * FIXME: updating the flags is racy when this function is + * called from ieee80211_change_station(), this will + * be resolved in a future patch. + */ + + if (params->station_flags & STATION_FLAG_CHANGED) { + spin_lock_bh(&sta->lock); + sta->flags &= ~WLAN_STA_AUTHORIZED; + if (params->station_flags & STATION_FLAG_AUTHORIZED) + sta->flags |= WLAN_STA_AUTHORIZED; + + sta->flags &= ~WLAN_STA_SHORT_PREAMBLE; + if (params->station_flags & STATION_FLAG_SHORT_PREAMBLE) + sta->flags |= WLAN_STA_SHORT_PREAMBLE; + + sta->flags &= ~WLAN_STA_WME; + if (params->station_flags & STATION_FLAG_WME) + sta->flags |= WLAN_STA_WME; + spin_unlock_bh(&sta->lock); + } + + /* + * 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->aid) { + sta->sta.aid = params->aid; + if (sta->sta.aid > IEEE80211_MAX_AID) + sta->sta.aid = 0; /* XXX: should this be an error? */ + } + + if (params->listen_interval >= 0) + sta->listen_interval = params->listen_interval; + + if (params->supported_rates) { + rates = 0; + sband = local->hw.wiphy->bands[local->oper_channel->band]; + + 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_ht_info(params->ht_capa, + &sta->sta.ht_info); + } + + 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; + + /* Prevent a race with changing the rate control algorithm */ + if (!netif_running(dev)) + return -ENETDOWN; + + 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, dev->dev_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); + + rcu_read_lock(); + + err = sta_info_insert(sta); + if (err) { + /* STA has been freed */ + rcu_read_unlock(); + return err; + } + + if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN || + sdata->vif.type == NL80211_IFTYPE_AP) + 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; + struct sta_info *sta; + + sdata = IEEE80211_DEV_TO_SUB_IF(dev); + + if (mac) { + rcu_read_lock(); + + /* XXX: get sta belonging to dev */ + sta = sta_info_get(local, mac); + if (!sta) { + rcu_read_unlock(); + return -ENOENT; + } + + sta_info_unlink(&sta); + rcu_read_unlock(); + + sta_info_destroy(sta); + } else + 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_local *local = wiphy_priv(wiphy); + struct sta_info *sta; + struct ieee80211_sub_if_data *vlansdata; + + rcu_read_lock(); + + /* XXX: get sta belonging to dev */ + sta = sta_info_get(local, 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; + } + + 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_local *local = wiphy_priv(wiphy); + struct ieee80211_sub_if_data *sdata; + struct mesh_path *mpath; + struct sta_info *sta; + int err; + + if (!netif_running(dev)) + return -ENETDOWN; + + sdata = IEEE80211_DEV_TO_SUB_IF(dev); + + if (sdata->vif.type != NL80211_IFTYPE_MESH_POINT) + return -ENOTSUPP; + + rcu_read_lock(); + sta = sta_info_get(local, 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_local *local = wiphy_priv(wiphy); + struct ieee80211_sub_if_data *sdata; + struct mesh_path *mpath; + struct sta_info *sta; + + if (!netif_running(dev)) + return -ENETDOWN; + + sdata = IEEE80211_DEV_TO_SUB_IF(dev); + + if (sdata->vif.type != NL80211_IFTYPE_MESH_POINT) + return -ENOTSUPP; + + rcu_read_lock(); + + sta = sta_info_get(local, 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->filled = MPATH_INFO_FRAME_QLEN | + MPATH_INFO_DSN | + 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->dsn = mpath->dsn; + 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_DSN_VALID) + pinfo->flags |= NL80211_MPATH_FLAG_DSN_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); + + if (sdata->vif.type != NL80211_IFTYPE_MESH_POINT) + return -ENOTSUPP; + + 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); + + if (sdata->vif.type != NL80211_IFTYPE_MESH_POINT) + return -ENOTSUPP; + + 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; +} +#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 (sdata->vif.type != NL80211_IFTYPE_AP) + return -EINVAL; + + if (params->use_cts_prot >= 0) { + sdata->bss_conf.use_cts_prot = params->use_cts_prot; + changed |= BSS_CHANGED_ERP_CTS_PROT; + } + if (params->use_short_preamble >= 0) { + sdata->bss_conf.use_short_preamble = + params->use_short_preamble; + changed |= BSS_CHANGED_ERP_PREAMBLE; + } + if (params->use_short_slot_time >= 0) { + sdata->bss_conf.use_short_slot = + params->use_short_slot_time; + changed |= BSS_CHANGED_ERP_SLOT; + } + + ieee80211_bss_info_change_notify(sdata, changed); + + 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, + .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, +#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, +#endif + .change_bss = ieee80211_change_bss, +}; 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