cfg.c 55.5 KB
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/*
 * mac80211 configuration hooks for cfg80211
 *
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 * Copyright 2006-2010	Johannes Berg <johannes@sipsolutions.net>
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 *
 * This file is GPLv2 as found in COPYING.
 */

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#include <linux/ieee80211.h>
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#include <linux/nl80211.h>
#include <linux/rtnetlink.h>
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#include <linux/slab.h>
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#include <net/net_namespace.h>
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#include <linux/rcupdate.h>
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#include <net/cfg80211.h>
#include "ieee80211_i.h"
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#include "driver-ops.h"
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#include "cfg.h"
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#include "rate.h"
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#include "mesh.h"

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static struct net_device *ieee80211_add_iface(struct wiphy *wiphy, char *name,
					      enum nl80211_iftype type,
					      u32 *flags,
					      struct vif_params *params)
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{
	struct ieee80211_local *local = wiphy_priv(wiphy);
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	struct net_device *dev;
	struct ieee80211_sub_if_data *sdata;
	int err;
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	err = ieee80211_if_add(local, name, &dev, type, params);
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	if (err)
		return ERR_PTR(err);
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	if (type == NL80211_IFTYPE_MONITOR && flags) {
		sdata = IEEE80211_DEV_TO_SUB_IF(dev);
		sdata->u.mntr_flags = *flags;
	}

	return dev;
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}

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static int ieee80211_del_iface(struct wiphy *wiphy, struct net_device *dev)
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{
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	ieee80211_if_remove(IEEE80211_DEV_TO_SUB_IF(dev));
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	return 0;
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}

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static int ieee80211_change_iface(struct wiphy *wiphy,
				  struct net_device *dev,
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				  enum nl80211_iftype type, u32 *flags,
				  struct vif_params *params)
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{
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	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
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	int ret;
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	ret = ieee80211_if_change_type(sdata, type);
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	if (ret)
		return ret;
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	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;

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	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;
		}
	}
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	return 0;
}

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static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
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			     u8 key_idx, bool pairwise, const u8 *mac_addr,
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			     struct key_params *params)
{
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	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
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	struct sta_info *sta = NULL;
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	struct ieee80211_key *key;
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	int err;
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	if (!ieee80211_sdata_running(sdata))
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		return -ENETDOWN;

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	/* reject WEP and TKIP keys if WEP failed to initialize */
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	switch (params->cipher) {
	case WLAN_CIPHER_SUITE_WEP40:
	case WLAN_CIPHER_SUITE_TKIP:
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	case WLAN_CIPHER_SUITE_WEP104:
		if (IS_ERR(sdata->local->wep_tx_tfm))
			return -EINVAL;
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		break;
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	default:
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		break;
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	}

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	key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
				  params->key, params->seq_len, params->seq);
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	if (IS_ERR(key))
		return PTR_ERR(key);
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	if (pairwise)
		key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;

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	mutex_lock(&sdata->local->sta_mtx);
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	if (mac_addr) {
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		if (ieee80211_vif_is_mesh(&sdata->vif))
			sta = sta_info_get(sdata, mac_addr);
		else
			sta = sta_info_get_bss(sdata, mac_addr);
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		if (!sta) {
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			ieee80211_key_free(sdata->local, key);
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			err = -ENOENT;
			goto out_unlock;
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		}
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	}

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	err = ieee80211_key_link(key, sdata, sta);
	if (err)
		ieee80211_key_free(sdata->local, key);
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 out_unlock:
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	mutex_unlock(&sdata->local->sta_mtx);
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	return err;
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}

static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
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			     u8 key_idx, bool pairwise, const u8 *mac_addr)
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{
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	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
	struct ieee80211_local *local = sdata->local;
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	struct sta_info *sta;
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	struct ieee80211_key *key = NULL;
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	int ret;

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	mutex_lock(&local->sta_mtx);
	mutex_lock(&local->key_mtx);
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	if (mac_addr) {
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		ret = -ENOENT;

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		sta = sta_info_get_bss(sdata, mac_addr);
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		if (!sta)
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			goto out_unlock;
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		if (pairwise)
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			key = key_mtx_dereference(local, sta->ptk);
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		else
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			key = key_mtx_dereference(local, sta->gtk[key_idx]);
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	} else
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		key = key_mtx_dereference(local, sdata->keys[key_idx]);
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	if (!key) {
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		ret = -ENOENT;
		goto out_unlock;
	}
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	__ieee80211_key_free(key);
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	ret = 0;
 out_unlock:
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	mutex_unlock(&local->key_mtx);
	mutex_unlock(&local->sta_mtx);
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	return ret;
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}

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static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
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			     u8 key_idx, bool pairwise, const u8 *mac_addr,
			     void *cookie,
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			     void (*callback)(void *cookie,
					      struct key_params *params))
{
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	struct ieee80211_sub_if_data *sdata;
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	struct sta_info *sta = NULL;
	u8 seq[6] = {0};
	struct key_params params;
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	struct ieee80211_key *key = NULL;
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	u64 pn64;
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	u32 iv32;
	u16 iv16;
	int err = -ENOENT;

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	sdata = IEEE80211_DEV_TO_SUB_IF(dev);

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	rcu_read_lock();

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	if (mac_addr) {
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		sta = sta_info_get_bss(sdata, mac_addr);
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		if (!sta)
			goto out;

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		if (pairwise)
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			key = rcu_dereference(sta->ptk);
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		else if (key_idx < NUM_DEFAULT_KEYS)
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			key = rcu_dereference(sta->gtk[key_idx]);
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	} else
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		key = rcu_dereference(sdata->keys[key_idx]);
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	if (!key)
		goto out;

	memset(&params, 0, sizeof(params));

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	params.cipher = key->conf.cipher;
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	switch (key->conf.cipher) {
	case WLAN_CIPHER_SUITE_TKIP:
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		iv32 = key->u.tkip.tx.iv32;
		iv16 = key->u.tkip.tx.iv16;
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		if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
			drv_get_tkip_seq(sdata->local,
					 key->conf.hw_key_idx,
					 &iv32, &iv16);
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		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;
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	case WLAN_CIPHER_SUITE_CCMP:
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		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;
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		params.seq = seq;
		params.seq_len = 6;
		break;
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	case WLAN_CIPHER_SUITE_AES_CMAC:
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		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;
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		params.seq = seq;
		params.seq_len = 6;
		break;
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	}

	params.key = key->conf.key;
	params.key_len = key->conf.keylen;

	callback(cookie, &params);
	err = 0;

 out:
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	rcu_read_unlock();
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	return err;
}

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static int ieee80211_config_default_key(struct wiphy *wiphy,
					struct net_device *dev,
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					u8 key_idx, bool uni,
					bool multi)
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{
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	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
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	ieee80211_set_default_key(sdata, key_idx, uni, multi);
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	return 0;
}

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static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
					     struct net_device *dev,
					     u8 key_idx)
{
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	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
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	ieee80211_set_default_mgmt_key(sdata, key_idx);

	return 0;
}

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static void rate_idx_to_bitrate(struct rate_info *rate, struct sta_info *sta, int idx)
{
	if (!(rate->flags & RATE_INFO_FLAGS_MCS)) {
		struct ieee80211_supported_band *sband;
		sband = sta->local->hw.wiphy->bands[
				sta->local->hw.conf.channel->band];
		rate->legacy = sband->bitrates[idx].bitrate;
	} else
		rate->mcs = idx;
}

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static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
{
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	struct ieee80211_sub_if_data *sdata = sta->sdata;
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	struct timespec uptime;
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	sinfo->generation = sdata->local->sta_generation;

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	sinfo->filled = STATION_INFO_INACTIVE_TIME |
			STATION_INFO_RX_BYTES |
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			STATION_INFO_TX_BYTES |
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			STATION_INFO_RX_PACKETS |
			STATION_INFO_TX_PACKETS |
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			STATION_INFO_TX_RETRIES |
			STATION_INFO_TX_FAILED |
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			STATION_INFO_TX_BITRATE |
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			STATION_INFO_RX_BITRATE |
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			STATION_INFO_RX_DROP_MISC |
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			STATION_INFO_BSS_PARAM |
			STATION_INFO_CONNECTED_TIME;

	do_posix_clock_monotonic_gettime(&uptime);
	sinfo->connected_time = uptime.tv_sec - sta->last_connected;
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	sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
	sinfo->rx_bytes = sta->rx_bytes;
	sinfo->tx_bytes = sta->tx_bytes;
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	sinfo->rx_packets = sta->rx_packets;
	sinfo->tx_packets = sta->tx_packets;
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	sinfo->tx_retries = sta->tx_retry_count;
	sinfo->tx_failed = sta->tx_retry_failed;
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	sinfo->rx_dropped_misc = sta->rx_dropped;
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	if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
	    (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
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		sinfo->filled |= STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
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		sinfo->signal = (s8)sta->last_signal;
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		sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal);
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	}

	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;
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	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.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
	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);
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	if (ieee80211_vif_is_mesh(&sdata->vif)) {
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#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
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	}
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	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->local->hw.conf.ps_dtim_period;
	sinfo->bss_param.beacon_interval = sdata->vif.bss_conf.beacon_int;
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}


static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
				 int idx, u8 *mac, struct station_info *sinfo)
{
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	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
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	struct sta_info *sta;
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	int ret = -ENOENT;

	rcu_read_lock();
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	sta = sta_info_get_by_idx(sdata, idx);
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	if (sta) {
		ret = 0;
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		memcpy(mac, sta->sta.addr, ETH_ALEN);
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		sta_set_sinfo(sta, sinfo);
	}
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	rcu_read_unlock();
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	return ret;
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}

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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);
}

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static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
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				 u8 *mac, struct station_info *sinfo)
440
{
441
	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
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	struct sta_info *sta;
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	int ret = -ENOENT;
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	rcu_read_lock();
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	sta = sta_info_get_bss(sdata, mac);
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	if (sta) {
		ret = 0;
		sta_set_sinfo(sta, sinfo);
	}

	rcu_read_unlock();

	return ret;
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}

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static void ieee80211_config_ap_ssid(struct ieee80211_sub_if_data *sdata,
				     struct beacon_parameters *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);
}

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/*
 * 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;

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	old = rtnl_dereference(sdata->u.ap.beacon);
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	/* 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.
	 */
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	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);
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	}

	/* 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);

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	sdata->vif.bss_conf.dtim_period = new->dtim_period;

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	rcu_assign_pointer(sdata->u.ap.beacon, new);

	synchronize_rcu();

	kfree(old);

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	ieee80211_config_ap_ssid(sdata, params);

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	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
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						BSS_CHANGED_BEACON |
						BSS_CHANGED_SSID);
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	return 0;
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}

static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
				struct beacon_parameters *params)
{
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	struct ieee80211_sub_if_data *sdata;
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	struct beacon_data *old;

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	sdata = IEEE80211_DEV_TO_SUB_IF(dev);

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	old = rtnl_dereference(sdata->u.ap.beacon);
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	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)
{
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	struct ieee80211_sub_if_data *sdata;
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	struct beacon_data *old;

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	sdata = IEEE80211_DEV_TO_SUB_IF(dev);

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	old = rtnl_dereference(sdata->u.ap.beacon);
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	if (!old)
		return -ENOENT;

	return ieee80211_config_beacon(sdata, params);
}

static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
{
605
	struct ieee80211_sub_if_data *sdata;
606 607
	struct beacon_data *old;

608 609
	sdata = IEEE80211_DEV_TO_SUB_IF(dev);

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	old = rtnl_dereference(sdata->u.ap.beacon);
611 612 613 614 615 616 617
	if (!old)
		return -ENOENT;

	rcu_assign_pointer(sdata->u.ap.beacon, NULL);
	synchronize_rcu();
	kfree(old);

618 619
	ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
	return 0;
620 621
}

622 623 624 625 626 627 628 629 630
/* 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];
E
Eric Dumazet 已提交
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} __packed;
632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649

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);
650
	memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
651 652 653 654 655 656 657 658 659
	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) */

660 661
	skb->dev = sta->sdata->dev;
	skb->protocol = eth_type_trans(skb, sta->sdata->dev);
662
	memset(skb->cb, 0, sizeof(skb->cb));
663
	netif_rx_ni(skb);
664 665 666 667 668 669
}

static void sta_apply_parameters(struct ieee80211_local *local,
				 struct sta_info *sta,
				 struct station_parameters *params)
{
670
	unsigned long flags;
671 672
	u32 rates;
	int i, j;
673
	struct ieee80211_supported_band *sband;
674
	struct ieee80211_sub_if_data *sdata = sta->sdata;
675
	u32 mask, set;
676

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	sband = local->hw.wiphy->bands[local->oper_channel->band];

679
	spin_lock_irqsave(&sta->flaglock, flags);
680 681
	mask = params->sta_flags_mask;
	set = params->sta_flags_set;
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682

683
	if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
684
		sta->flags &= ~WLAN_STA_AUTHORIZED;
685
		if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
686
			sta->flags |= WLAN_STA_AUTHORIZED;
687
	}
688

689
	if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
690
		sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
691
		if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
692
			sta->flags |= WLAN_STA_SHORT_PREAMBLE;
693
	}
694

695
	if (mask & BIT(NL80211_STA_FLAG_WME)) {
696
		sta->flags &= ~WLAN_STA_WME;
697 698
		sta->sta.wme = false;
		if (set & BIT(NL80211_STA_FLAG_WME)) {
699
			sta->flags |= WLAN_STA_WME;
700 701
			sta->sta.wme = true;
		}
702
	}
703

704
	if (mask & BIT(NL80211_STA_FLAG_MFP)) {
705
		sta->flags &= ~WLAN_STA_MFP;
706
		if (set & BIT(NL80211_STA_FLAG_MFP))
707
			sta->flags |= WLAN_STA_MFP;
708
	}
709 710 711 712 713 714

	if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) {
		sta->flags &= ~WLAN_STA_AUTH;
		if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
			sta->flags |= WLAN_STA_AUTH;
	}
715
	spin_unlock_irqrestore(&sta->flaglock, flags);
716

717 718 719
	sta->sta.uapsd_queues = params->uapsd_queues;
	sta->sta.max_sp = params->max_sp;

720 721 722 723 724 725 726
	/*
	 * 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;

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	/*
	 * 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.
	 */

734 735 736 737 738
	if (params->listen_interval >= 0)
		sta->listen_interval = params->listen_interval;

	if (params->supported_rates) {
		rates = 0;
739

740 741
		for (i = 0; i < params->supported_rates_len; i++) {
			int rate = (params->supported_rates[i] & 0x7f) * 5;
742 743
			for (j = 0; j < sband->n_bitrates; j++) {
				if (sband->bitrates[j].bitrate == rate)
744 745 746
					rates |= BIT(j);
			}
		}
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		sta->sta.supp_rates[local->oper_channel->band] = rates;
748
	}
749

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	if (params->ht_capa)
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		ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
						  params->ht_capa,
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						  &sta->sta.ht_cap);
754

755
	if (ieee80211_vif_is_mesh(&sdata->vif)) {
756
#ifdef CONFIG_MAC80211_MESH
757 758
		if (sdata->u.mesh.security & IEEE80211_MESH_SEC_SECURED)
			switch (params->plink_state) {
759 760 761
			case NL80211_PLINK_LISTEN:
			case NL80211_PLINK_ESTAB:
			case NL80211_PLINK_BLOCKED:
762 763 764 765 766 767 768 769 770 771 772 773 774 775 776
				sta->plink_state = params->plink_state;
				break;
			default:
				/*  nothing  */
				break;
			}
		else
			switch (params->plink_action) {
			case PLINK_ACTION_OPEN:
				mesh_plink_open(sta);
				break;
			case PLINK_ACTION_BLOCK:
				mesh_plink_block(sta);
				break;
			}
777
#endif
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	}
779 780 781 782 783
}

static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
				 u8 *mac, struct station_parameters *params)
{
784
	struct ieee80211_local *local = wiphy_priv(wiphy);
785 786
	struct sta_info *sta;
	struct ieee80211_sub_if_data *sdata;
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	int err;
788
	int layer2_update;
789 790 791 792

	if (params->vlan) {
		sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);

793 794
		if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
		    sdata->vif.type != NL80211_IFTYPE_AP)
795 796 797 798
			return -EINVAL;
	} else
		sdata = IEEE80211_DEV_TO_SUB_IF(dev);

799
	if (compare_ether_addr(mac, sdata->vif.addr) == 0)
800 801 802 803 804 805
		return -EINVAL;

	if (is_multicast_ether_addr(mac))
		return -EINVAL;

	sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
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	if (!sta)
		return -ENOMEM;
808 809 810 811 812

	sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;

	sta_apply_parameters(local, sta, params);

813
	rate_control_rate_init(sta);
814

815 816 817
	layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
		sdata->vif.type == NL80211_IFTYPE_AP;

818
	err = sta_info_insert_rcu(sta);
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	if (err) {
		rcu_read_unlock();
		return err;
	}

824
	if (layer2_update)
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		ieee80211_send_layer2_update(sta);

	rcu_read_unlock();

829 830 831 832 833 834
	return 0;
}

static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
				 u8 *mac)
{
835 836
	struct ieee80211_local *local = wiphy_priv(wiphy);
	struct ieee80211_sub_if_data *sdata;
837

838 839
	sdata = IEEE80211_DEV_TO_SUB_IF(dev);

840 841
	if (mac)
		return sta_info_destroy_addr_bss(sdata, mac);
842

843
	sta_info_flush(local, sdata);
844 845 846 847 848 849 850 851
	return 0;
}

static int ieee80211_change_station(struct wiphy *wiphy,
				    struct net_device *dev,
				    u8 *mac,
				    struct station_parameters *params)
{
852
	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
853
	struct ieee80211_local *local = wiphy_priv(wiphy);
854 855 856
	struct sta_info *sta;
	struct ieee80211_sub_if_data *vlansdata;

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	rcu_read_lock();

859
	sta = sta_info_get_bss(sdata, mac);
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860 861
	if (!sta) {
		rcu_read_unlock();
862
		return -ENOENT;
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	}
864

865
	if (params->vlan && params->vlan != sta->sdata->dev) {
866 867
		vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);

868 869
		if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
		    vlansdata->vif.type != NL80211_IFTYPE_AP) {
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			rcu_read_unlock();
871
			return -EINVAL;
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872
		}
873

874
		if (params->vlan->ieee80211_ptr->use_4addr) {
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875 876
			if (vlansdata->u.vlan.sta) {
				rcu_read_unlock();
877
				return -EBUSY;
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			}
879 880 881 882

			rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
		}

883
		sta->sdata = vlansdata;
884 885 886 887 888
		ieee80211_send_layer2_update(sta);
	}

	sta_apply_parameters(local, sta, params);

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	rcu_read_unlock();

891 892 893 894
	if (sdata->vif.type == NL80211_IFTYPE_STATION &&
	    params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED))
		ieee80211_recalc_ps(local, -1);

895 896 897
	return 0;
}

898 899 900 901
#ifdef CONFIG_MAC80211_MESH
static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
				 u8 *dst, u8 *next_hop)
{
902
	struct ieee80211_sub_if_data *sdata;
903 904 905 906
	struct mesh_path *mpath;
	struct sta_info *sta;
	int err;

907 908
	sdata = IEEE80211_DEV_TO_SUB_IF(dev);

909
	rcu_read_lock();
910
	sta = sta_info_get(sdata, next_hop);
911 912
	if (!sta) {
		rcu_read_unlock();
913
		return -ENOENT;
914
	}
915

916
	err = mesh_path_add(dst, sdata);
917 918
	if (err) {
		rcu_read_unlock();
919
		return err;
920
	}
921

922
	mpath = mesh_path_lookup(dst, sdata);
923 924 925 926 927
	if (!mpath) {
		rcu_read_unlock();
		return -ENXIO;
	}
	mesh_path_fix_nexthop(mpath, sta);
928

929 930 931 932 933 934 935
	rcu_read_unlock();
	return 0;
}

static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
				 u8 *dst)
{
936 937
	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);

938
	if (dst)
939
		return mesh_path_del(dst, sdata);
940

941
	mesh_path_flush_by_iface(sdata);
942 943 944 945 946 947 948
	return 0;
}

static int ieee80211_change_mpath(struct wiphy *wiphy,
				    struct net_device *dev,
				    u8 *dst, u8 *next_hop)
{
949
	struct ieee80211_sub_if_data *sdata;
950 951 952
	struct mesh_path *mpath;
	struct sta_info *sta;

953 954
	sdata = IEEE80211_DEV_TO_SUB_IF(dev);

955 956
	rcu_read_lock();

957
	sta = sta_info_get(sdata, next_hop);
958 959
	if (!sta) {
		rcu_read_unlock();
960
		return -ENOENT;
961
	}
962

963
	mpath = mesh_path_lookup(dst, sdata);
964 965 966 967 968 969
	if (!mpath) {
		rcu_read_unlock();
		return -ENOENT;
	}

	mesh_path_fix_nexthop(mpath, sta);
970

971 972 973 974 975 976 977
	rcu_read_unlock();
	return 0;
}

static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
			    struct mpath_info *pinfo)
{
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978 979 980 981
	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);
982 983 984
	else
		memset(next_hop, 0, ETH_ALEN);

985 986
	pinfo->generation = mesh_paths_generation;

987
	pinfo->filled = MPATH_INFO_FRAME_QLEN |
988
			MPATH_INFO_SN |
989 990 991 992 993 994 995
			MPATH_INFO_METRIC |
			MPATH_INFO_EXPTIME |
			MPATH_INFO_DISCOVERY_TIMEOUT |
			MPATH_INFO_DISCOVERY_RETRIES |
			MPATH_INFO_FLAGS;

	pinfo->frame_qlen = mpath->frame_queue.qlen;
996
	pinfo->sn = mpath->sn;
997 998 999 1000 1001 1002 1003 1004 1005 1006 1007
	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;
1008 1009
	if (mpath->flags & MESH_PATH_SN_VALID)
		pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021
	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)

{
1022
	struct ieee80211_sub_if_data *sdata;
1023 1024
	struct mesh_path *mpath;

1025 1026
	sdata = IEEE80211_DEV_TO_SUB_IF(dev);

1027
	rcu_read_lock();
1028
	mpath = mesh_path_lookup(dst, sdata);
1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042
	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)
{
1043
	struct ieee80211_sub_if_data *sdata;
1044 1045
	struct mesh_path *mpath;

1046 1047
	sdata = IEEE80211_DEV_TO_SUB_IF(dev);

1048
	rcu_read_lock();
1049
	mpath = mesh_path_lookup_by_idx(idx, sdata);
1050 1051 1052 1053 1054 1055 1056 1057 1058
	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;
}
1059

1060
static int ieee80211_get_mesh_config(struct wiphy *wiphy,
1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075
				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;
}

1076 1077 1078 1079 1080 1081
static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
		const struct mesh_setup *setup)
{
	u8 *new_ie;
	const u8 *old_ie;

1082
	/* allocate information elements */
1083
	new_ie = NULL;
1084
	old_ie = ifmsh->ie;
1085

1086 1087
	if (setup->ie_len) {
		new_ie = kmemdup(setup->ie, setup->ie_len,
1088 1089 1090 1091
				GFP_KERNEL);
		if (!new_ie)
			return -ENOMEM;
	}
1092 1093 1094
	ifmsh->ie_len = setup->ie_len;
	ifmsh->ie = new_ie;
	kfree(old_ie);
1095 1096 1097 1098 1099 1100

	/* 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;
1101 1102 1103 1104 1105
	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;
1106 1107 1108 1109

	return 0;
}

1110
static int ieee80211_update_mesh_config(struct wiphy *wiphy,
1111 1112
					struct net_device *dev, u32 mask,
					const struct mesh_config *nconf)
1113 1114 1115
{
	struct mesh_config *conf;
	struct ieee80211_sub_if_data *sdata;
1116 1117
	struct ieee80211_if_mesh *ifmsh;

1118
	sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1119
	ifmsh = &sdata->u.mesh;
1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134

	/* 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;
1135 1136
	if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
		conf->dot11MeshTTL = nconf->element_ttl;
1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155
	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;
1156 1157 1158 1159
	if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
		conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
		ieee80211_mesh_root_setup(ifmsh);
	}
1160
	if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
T
Thomas Pedersen 已提交
1161 1162 1163 1164 1165 1166 1167 1168
		/* 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;
			ieee80211_mesh_root_setup(ifmsh);
		}
1169 1170 1171
		conf->dot11MeshGateAnnouncementProtocol =
			nconf->dot11MeshGateAnnouncementProtocol;
	}
1172 1173 1174 1175
	if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) {
		conf->dot11MeshHWMPRannInterval =
			nconf->dot11MeshHWMPRannInterval;
	}
1176 1177 1178
	return 0;
}

1179 1180 1181 1182 1183 1184
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;
1185
	int err;
1186

1187 1188 1189 1190
	memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
	err = copy_mesh_setup(ifmsh, setup);
	if (err)
		return err;
1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203
	ieee80211_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);

	ieee80211_stop_mesh(sdata);

	return 0;
}
1204 1205
#endif

1206 1207 1208 1209 1210 1211 1212 1213 1214 1215
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) {
J
Johannes Berg 已提交
1216
		sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1217 1218 1219
		changed |= BSS_CHANGED_ERP_CTS_PROT;
	}
	if (params->use_short_preamble >= 0) {
J
Johannes Berg 已提交
1220
		sdata->vif.bss_conf.use_short_preamble =
1221 1222 1223
			params->use_short_preamble;
		changed |= BSS_CHANGED_ERP_PREAMBLE;
	}
1224 1225 1226 1227 1228 1229 1230

	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;
	}

1231
	if (params->use_short_slot_time >= 0) {
J
Johannes Berg 已提交
1232
		sdata->vif.bss_conf.use_short_slot =
1233 1234 1235 1236
			params->use_short_slot_time;
		changed |= BSS_CHANGED_ERP_SLOT;
	}

1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254
	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;
	}

1255 1256 1257 1258 1259 1260 1261
	if (params->ap_isolate >= 0) {
		if (params->ap_isolate)
			sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
		else
			sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
	}

1262 1263 1264 1265 1266 1267
	if (params->ht_opmode >= 0) {
		sdata->vif.bss_conf.ht_operation_mode =
			(u16) params->ht_opmode;
		changed |= BSS_CHANGED_HT;
	}

1268 1269 1270 1271 1272
	ieee80211_bss_info_change_notify(sdata, changed);

	return 0;
}

1273
static int ieee80211_set_txq_params(struct wiphy *wiphy,
1274
				    struct net_device *dev,
1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287
				    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;
K
Kalle Valo 已提交
1288 1289 1290 1291 1292 1293 1294

	/*
	 * Setting tx queue params disables u-apsd because it's only
	 * called in master mode.
	 */
	p.uapsd = false;

1295 1296 1297 1298
	if (params->queue >= local->hw.queues)
		return -EINVAL;

	local->tx_conf[params->queue] = p;
1299
	if (drv_conf_tx(local, params->queue, &p)) {
J
Joe Perches 已提交
1300 1301 1302
		wiphy_debug(local->hw.wiphy,
			    "failed to set TX queue parameters for queue %d\n",
			    params->queue);
1303 1304 1305 1306 1307 1308
		return -EINVAL;
	}

	return 0;
}

1309
static int ieee80211_set_channel(struct wiphy *wiphy,
1310
				 struct net_device *netdev,
1311
				 struct ieee80211_channel *chan,
S
Sujith 已提交
1312
				 enum nl80211_channel_type channel_type)
1313 1314
{
	struct ieee80211_local *local = wiphy_priv(wiphy);
1315
	struct ieee80211_sub_if_data *sdata = NULL;
1316 1317 1318
	struct ieee80211_channel *old_oper;
	enum nl80211_channel_type old_oper_type;
	enum nl80211_channel_type old_vif_oper_type= NL80211_CHAN_NO_HT;
1319 1320 1321

	if (netdev)
		sdata = IEEE80211_DEV_TO_SUB_IF(netdev);
1322

1323 1324 1325 1326
	switch (ieee80211_get_channel_mode(local, NULL)) {
	case CHAN_MODE_HOPPING:
		return -EBUSY;
	case CHAN_MODE_FIXED:
1327 1328 1329
		if (local->oper_channel != chan)
			return -EBUSY;
		if (!sdata && local->_oper_channel_type == channel_type)
1330
			return 0;
1331
		break;
1332 1333 1334
	case CHAN_MODE_UNDEFINED:
		break;
	}
1335

1336 1337 1338
	if (sdata)
		old_vif_oper_type = sdata->vif.bss_conf.channel_type;
	old_oper_type = local->_oper_channel_type;
1339

1340 1341 1342
	if (!ieee80211_set_channel_type(local, sdata, channel_type))
		return -EBUSY;

1343 1344 1345 1346 1347 1348 1349 1350 1351 1352
	old_oper = local->oper_channel;
	local->oper_channel = chan;

	/* Update driver if changes were actually made. */
	if ((old_oper != local->oper_channel) ||
	    (old_oper_type != local->_oper_channel_type))
		ieee80211_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)
1353 1354 1355
		ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);

	return 0;
1356 1357
}

1358
#ifdef CONFIG_PM
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Johannes Berg 已提交
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static int ieee80211_suspend(struct wiphy *wiphy,
			     struct cfg80211_wowlan *wowlan)
1361
{
1362
	return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373
}

static int ieee80211_resume(struct wiphy *wiphy)
{
	return __ieee80211_resume(wiphy_priv(wiphy));
}
#else
#define ieee80211_suspend NULL
#define ieee80211_resume NULL
#endif

1374 1375 1376 1377
static int ieee80211_scan(struct wiphy *wiphy,
			  struct net_device *dev,
			  struct cfg80211_scan_request *req)
{
1378
	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1379

1380 1381 1382 1383 1384 1385 1386 1387 1388
	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;
1389 1390 1391 1392 1393
		/*
		 * FIXME: implement NoA while scanning in software,
		 * for now fall through to allow scanning only when
		 * beaconing hasn't been configured yet
		 */
1394 1395 1396 1397 1398 1399 1400
	case NL80211_IFTYPE_AP:
		if (sdata->u.ap.beacon)
			return -EOPNOTSUPP;
		break;
	default:
		return -EOPNOTSUPP;
	}
1401 1402 1403 1404

	return ieee80211_request_scan(sdata, req);
}

1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418
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 ieee80211_request_sched_scan_start(sdata, req);
}

static int
1419
ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
1420 1421 1422 1423 1424 1425
{
	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);

	if (!sdata->local->ops->sched_scan_stop)
		return -EOPNOTSUPP;

1426
	return ieee80211_request_sched_scan_stop(sdata);
1427 1428
}

1429 1430 1431
static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
			  struct cfg80211_auth_request *req)
{
1432
	return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1433 1434 1435 1436 1437
}

static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
			   struct cfg80211_assoc_request *req)
{
1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451
	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;
	}

1452
	return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1453 1454 1455
}

static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
J
Johannes Berg 已提交
1456 1457
			    struct cfg80211_deauth_request *req,
			    void *cookie)
1458
{
J
Johannes Berg 已提交
1459 1460
	return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev),
				    req, cookie);
1461 1462 1463
}

static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
J
Johannes Berg 已提交
1464 1465
			      struct cfg80211_disassoc_request *req,
			      void *cookie)
1466
{
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Johannes Berg 已提交
1467 1468
	return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev),
				      req, cookie);
1469 1470
}

1471 1472 1473
static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
			       struct cfg80211_ibss_params *params)
{
1474
	struct ieee80211_local *local = wiphy_priv(wiphy);
1475 1476
	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);

1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489
	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;
	}

1490 1491 1492 1493 1494 1495 1496 1497 1498 1499
	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);
}

1500 1501 1502
static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
{
	struct ieee80211_local *local = wiphy_priv(wiphy);
1503
	int err;
1504

1505 1506 1507 1508 1509 1510 1511
	if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
		err = drv_set_frag_threshold(local, wiphy->frag_threshold);

		if (err)
			return err;
	}

1512 1513 1514 1515 1516 1517 1518
	if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
		err = drv_set_coverage_class(local, wiphy->coverage_class);

		if (err)
			return err;
	}

1519
	if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
1520
		err = drv_set_rts_threshold(local, wiphy->rts_threshold);
1521

1522 1523
		if (err)
			return err;
1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536
	}

	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;
}

1537
static int ieee80211_set_tx_power(struct wiphy *wiphy,
1538
				  enum nl80211_tx_power_setting type, int mbm)
1539 1540 1541 1542 1543 1544
{
	struct ieee80211_local *local = wiphy_priv(wiphy);
	struct ieee80211_channel *chan = local->hw.conf.channel;
	u32 changes = 0;

	switch (type) {
1545
	case NL80211_TX_POWER_AUTOMATIC:
1546 1547
		local->user_power_level = -1;
		break;
1548 1549 1550 1551
	case NL80211_TX_POWER_LIMITED:
		if (mbm < 0 || (mbm % 100))
			return -EOPNOTSUPP;
		local->user_power_level = MBM_TO_DBM(mbm);
1552
		break;
1553 1554 1555
	case NL80211_TX_POWER_FIXED:
		if (mbm < 0 || (mbm % 100))
			return -EOPNOTSUPP;
1556
		/* TODO: move to cfg80211 when it knows the channel */
1557
		if (MBM_TO_DBM(mbm) > chan->max_power)
1558
			return -EINVAL;
1559
		local->user_power_level = MBM_TO_DBM(mbm);
1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576
		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;
}

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Johannes Berg 已提交
1577
static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
J
Johannes Berg 已提交
1578
				  const u8 *addr)
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Johannes Berg 已提交
1579 1580 1581 1582 1583 1584 1585 1586
{
	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);

	memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);

	return 0;
}

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Johannes Berg 已提交
1587 1588 1589 1590 1591 1592 1593
static void ieee80211_rfkill_poll(struct wiphy *wiphy)
{
	struct ieee80211_local *local = wiphy_priv(wiphy);

	drv_rfkill_poll(local);
}

1594
#ifdef CONFIG_NL80211_TESTMODE
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Johannes Berg 已提交
1595
static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
1596 1597 1598 1599 1600 1601 1602 1603
{
	struct ieee80211_local *local = wiphy_priv(wiphy);

	if (!local->ops->testmode_cmd)
		return -EOPNOTSUPP;

	return local->ops->testmode_cmd(&local->hw, data, len);
}
W
Wey-Yi Guy 已提交
1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616

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);
}
1617 1618
#endif

1619 1620 1621 1622 1623 1624 1625
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;

1626 1627
	lockdep_assert_held(&sdata->u.mgd.mtx);

1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639
	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 ||
1640
	    sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT) {
1641
		mutex_lock(&sdata->local->iflist_mtx);
1642
		ieee80211_recalc_smps(sdata->local);
1643 1644 1645 1646
		mutex_unlock(&sdata->local->iflist_mtx);
		return 0;
	}

1647
	ap = sdata->u.mgd.associated->bssid;
1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664

	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;
}

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Johannes Berg 已提交
1665 1666 1667 1668 1669 1670
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);

1671 1672 1673
	if (sdata->vif.type != NL80211_IFTYPE_STATION)
		return -EOPNOTSUPP;

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Johannes Berg 已提交
1674 1675 1676 1677
	if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
		return -EOPNOTSUPP;

	if (enabled == sdata->u.mgd.powersave &&
1678
	    timeout == local->dynamic_ps_forced_timeout)
J
Johannes Berg 已提交
1679 1680 1681
		return 0;

	sdata->u.mgd.powersave = enabled;
1682
	local->dynamic_ps_forced_timeout = timeout;
J
Johannes Berg 已提交
1683

1684 1685 1686 1687 1688
	/* 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);

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Johannes Berg 已提交
1689 1690 1691 1692 1693 1694 1695 1696
	if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
		ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);

	ieee80211_recalc_ps(local, -1);

	return 0;
}

1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712
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;

1713 1714 1715 1716 1717 1718
	if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_RSSI)) {
		if (sdata->vif.type != NL80211_IFTYPE_STATION)
			return -EOPNOTSUPP;
		return 0;
	}

1719 1720 1721 1722 1723 1724 1725
	/* tell the driver upon association, unless already associated */
	if (sdata->u.mgd.associated)
		ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);

	return 0;
}

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1726 1727 1728 1729 1730 1731 1732
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);
1733
	int i, ret;
1734

1735 1736 1737 1738 1739
	if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
		ret = drv_set_bitrate_mask(local, sdata, mask);
		if (ret)
			return ret;
	}
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1740

1741 1742
	for (i = 0; i < IEEE80211_NUM_BANDS; i++)
		sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
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1743

1744
	return 0;
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1745 1746
}

1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777
static int ieee80211_remain_on_channel_hw(struct ieee80211_local *local,
					  struct net_device *dev,
					  struct ieee80211_channel *chan,
					  enum nl80211_channel_type chantype,
					  unsigned int duration, u64 *cookie)
{
	int ret;
	u32 random_cookie;

	lockdep_assert_held(&local->mtx);

	if (local->hw_roc_cookie)
		return -EBUSY;
	/* must be nonzero */
	random_cookie = random32() | 1;

	*cookie = random_cookie;
	local->hw_roc_dev = dev;
	local->hw_roc_cookie = random_cookie;
	local->hw_roc_channel = chan;
	local->hw_roc_channel_type = chantype;
	local->hw_roc_duration = duration;
	ret = drv_remain_on_channel(local, chan, chantype, duration);
	if (ret) {
		local->hw_roc_channel = NULL;
		local->hw_roc_cookie = 0;
	}

	return ret;
}

1778 1779 1780 1781 1782 1783 1784 1785
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);
1786 1787 1788 1789 1790 1791 1792 1793 1794
	struct ieee80211_local *local = sdata->local;

	if (local->ops->remain_on_channel) {
		int ret;

		mutex_lock(&local->mtx);
		ret = ieee80211_remain_on_channel_hw(local, dev,
						     chan, channel_type,
						     duration, cookie);
1795
		local->hw_roc_for_tx = false;
1796 1797 1798 1799
		mutex_unlock(&local->mtx);

		return ret;
	}
1800 1801 1802 1803 1804

	return ieee80211_wk_remain_on_channel(sdata, chan, channel_type,
					      duration, cookie);
}

1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826
static int ieee80211_cancel_remain_on_channel_hw(struct ieee80211_local *local,
						 u64 cookie)
{
	int ret;

	lockdep_assert_held(&local->mtx);

	if (local->hw_roc_cookie != cookie)
		return -ENOENT;

	ret = drv_cancel_remain_on_channel(local);
	if (ret)
		return ret;

	local->hw_roc_cookie = 0;
	local->hw_roc_channel = NULL;

	ieee80211_recalc_idle(local);

	return 0;
}

1827 1828 1829 1830 1831
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);
1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842
	struct ieee80211_local *local = sdata->local;

	if (local->ops->cancel_remain_on_channel) {
		int ret;

		mutex_lock(&local->mtx);
		ret = ieee80211_cancel_remain_on_channel_hw(local, cookie);
		mutex_unlock(&local->mtx);

		return ret;
	}
1843 1844 1845 1846

	return ieee80211_wk_cancel_remain_on_channel(sdata, cookie);
}

1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868
static enum work_done_result
ieee80211_offchan_tx_done(struct ieee80211_work *wk, struct sk_buff *skb)
{
	/*
	 * Use the data embedded in the work struct for reporting
	 * here so if the driver mangled the SKB before dropping
	 * it (which is the only way we really should get here)
	 * then we don't report mangled data.
	 *
	 * If there was no wait time, then by the time we get here
	 * the driver will likely not have reported the status yet,
	 * so in that case userspace will have to deal with it.
	 */

	if (wk->offchan_tx.wait && wk->offchan_tx.frame)
		cfg80211_mgmt_tx_status(wk->sdata->dev,
					(unsigned long) wk->offchan_tx.frame,
					wk->ie, wk->ie_len, false, GFP_KERNEL);

	return WORK_DONE_DESTROY;
}

1869
static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev,
1870
			     struct ieee80211_channel *chan, bool offchan,
1871
			     enum nl80211_channel_type channel_type,
1872
			     bool channel_type_valid, unsigned int wait,
1873 1874
			     const u8 *buf, size_t len, bool no_cck,
			     u64 *cookie)
1875
{
1876 1877 1878 1879
	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;
1880
	struct ieee80211_work *wk;
1881 1882 1883
	const struct ieee80211_mgmt *mgmt = (void *)buf;
	u32 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
		    IEEE80211_TX_CTL_REQ_TX_STATUS;
1884
	bool is_offchan = false;
1885

1886 1887 1888
	/* Check that we are on the requested channel for transmission */
	if (chan != local->tmp_channel &&
	    chan != local->oper_channel)
1889
		is_offchan = true;
1890 1891 1892
	if (channel_type_valid &&
	    (channel_type != local->tmp_channel_type &&
	     channel_type != local->_oper_channel_type))
1893 1894
		is_offchan = true;

1895 1896 1897 1898 1899 1900
	if (chan == local->hw_roc_channel) {
		/* TODO: check channel type? */
		is_offchan = false;
		flags |= IEEE80211_TX_CTL_TX_OFFCHAN;
	}

1901 1902 1903
	if (no_cck)
		flags |= IEEE80211_TX_CTL_NO_CCK_RATE;

1904
	if (is_offchan && !offchan)
1905 1906 1907 1908
		return -EBUSY;

	switch (sdata->vif.type) {
	case NL80211_IFTYPE_ADHOC:
1909 1910 1911
	case NL80211_IFTYPE_AP:
	case NL80211_IFTYPE_AP_VLAN:
	case NL80211_IFTYPE_P2P_GO:
1912
	case NL80211_IFTYPE_MESH_POINT:
1913 1914
		if (!ieee80211_is_action(mgmt->frame_control) ||
		    mgmt->u.action.category == WLAN_CATEGORY_PUBLIC)
1915 1916 1917 1918 1919 1920 1921 1922
			break;
		rcu_read_lock();
		sta = sta_info_get(sdata, mgmt->da);
		rcu_read_unlock();
		if (!sta)
			return -ENOLINK;
		break;
	case NL80211_IFTYPE_STATION:
1923
	case NL80211_IFTYPE_P2P_CLIENT:
1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940
		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;

	*cookie = (unsigned long) skb;
1941

1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979
	if (is_offchan && local->ops->remain_on_channel) {
		unsigned int duration;
		int ret;

		mutex_lock(&local->mtx);
		/*
		 * If the duration is zero, then the driver
		 * wouldn't actually do anything. Set it to
		 * 100 for now.
		 *
		 * TODO: cancel the off-channel operation
		 *       when we get the SKB's TX status and
		 *       the wait time was zero before.
		 */
		duration = 100;
		if (wait)
			duration = wait;
		ret = ieee80211_remain_on_channel_hw(local, dev, chan,
						     channel_type,
						     duration, cookie);
		if (ret) {
			kfree_skb(skb);
			mutex_unlock(&local->mtx);
			return ret;
		}

		local->hw_roc_for_tx = true;
		local->hw_roc_duration = wait;

		/*
		 * queue up frame for transmission after
		 * ieee80211_ready_on_channel call
		 */

		/* modify cookie to prevent API mismatches */
		*cookie ^= 2;
		IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN;
		local->hw_roc_skb = skb;
1980
		local->hw_roc_skb_for_status = skb;
1981 1982 1983 1984 1985
		mutex_unlock(&local->mtx);

		return 0;
	}

1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004
	/*
	 * 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 (!is_offchan && !wait && !sdata->vif.bss_conf.idle) {
		ieee80211_tx_skb(sdata, skb);
		return 0;
	}

	wk = kzalloc(sizeof(*wk) + len, GFP_KERNEL);
	if (!wk) {
		kfree_skb(skb);
		return -ENOMEM;
	}

	wk->type = IEEE80211_WORK_OFFCHANNEL_TX;
	wk->chan = chan;
2005
	wk->chan_type = channel_type;
2006 2007 2008 2009 2010 2011 2012 2013
	wk->sdata = sdata;
	wk->done = ieee80211_offchan_tx_done;
	wk->offchan_tx.frame = skb;
	wk->offchan_tx.wait = wait;
	wk->ie_len = len;
	memcpy(wk->ie, buf, len);

	ieee80211_add_work(wk);
2014
	return 0;
2015 2016
}

2017 2018 2019 2020 2021 2022 2023 2024 2025 2026
static int ieee80211_mgmt_tx_cancel_wait(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;
	struct ieee80211_work *wk;
	int ret = -ENOENT;

	mutex_lock(&local->mtx);
2027 2028 2029 2030 2031 2032 2033 2034

	if (local->ops->cancel_remain_on_channel) {
		cookie ^= 2;
		ret = ieee80211_cancel_remain_on_channel_hw(local, cookie);

		if (ret == 0) {
			kfree_skb(local->hw_roc_skb);
			local->hw_roc_skb = NULL;
2035
			local->hw_roc_skb_for_status = NULL;
2036 2037 2038 2039 2040 2041 2042
		}

		mutex_unlock(&local->mtx);

		return ret;
	}

2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063
	list_for_each_entry(wk, &local->work_list, list) {
		if (wk->sdata != sdata)
			continue;

		if (wk->type != IEEE80211_WORK_OFFCHANNEL_TX)
			continue;

		if (cookie != (unsigned long) wk->offchan_tx.frame)
			continue;

		wk->timeout = jiffies;

		ieee80211_queue_work(&local->hw, &local->work_work);
		ret = 0;
		break;
	}
	mutex_unlock(&local->mtx);

	return ret;
}

2064 2065 2066 2067 2068 2069 2070 2071 2072 2073 2074 2075 2076 2077 2078 2079 2080
static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
					  struct net_device *dev,
					  u16 frame_type, bool reg)
{
	struct ieee80211_local *local = wiphy_priv(wiphy);

	if (frame_type != (IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ))
		return;

	if (reg)
		local->probe_req_reg++;
	else
		local->probe_req_reg--;

	ieee80211_queue_work(&local->hw, &local->reconfig_filter);
}

2081 2082 2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094 2095 2096 2097
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);
}

2098 2099 2100 2101 2102 2103 2104 2105 2106 2107 2108 2109 2110 2111 2112
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);
}

2113 2114 2115 2116 2117 2118 2119 2120 2121 2122 2123 2124 2125 2126 2127
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;
}

2128 2129 2130
struct cfg80211_ops mac80211_config_ops = {
	.add_virtual_intf = ieee80211_add_iface,
	.del_virtual_intf = ieee80211_del_iface,
2131
	.change_virtual_intf = ieee80211_change_iface,
2132 2133
	.add_key = ieee80211_add_key,
	.del_key = ieee80211_del_key,
2134
	.get_key = ieee80211_get_key,
2135
	.set_default_key = ieee80211_config_default_key,
2136
	.set_default_mgmt_key = ieee80211_config_default_mgmt_key,
2137 2138 2139
	.add_beacon = ieee80211_add_beacon,
	.set_beacon = ieee80211_set_beacon,
	.del_beacon = ieee80211_del_beacon,
2140 2141 2142
	.add_station = ieee80211_add_station,
	.del_station = ieee80211_del_station,
	.change_station = ieee80211_change_station,
2143
	.get_station = ieee80211_get_station,
2144
	.dump_station = ieee80211_dump_station,
2145
	.dump_survey = ieee80211_dump_survey,
2146 2147 2148 2149 2150 2151
#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,
2152 2153
	.update_mesh_config = ieee80211_update_mesh_config,
	.get_mesh_config = ieee80211_get_mesh_config,
2154 2155
	.join_mesh = ieee80211_join_mesh,
	.leave_mesh = ieee80211_leave_mesh,
2156
#endif
2157
	.change_bss = ieee80211_change_bss,
2158
	.set_txq_params = ieee80211_set_txq_params,
2159
	.set_channel = ieee80211_set_channel,
2160 2161
	.suspend = ieee80211_suspend,
	.resume = ieee80211_resume,
2162
	.scan = ieee80211_scan,
2163 2164
	.sched_scan_start = ieee80211_sched_scan_start,
	.sched_scan_stop = ieee80211_sched_scan_stop,
2165 2166 2167 2168
	.auth = ieee80211_auth,
	.assoc = ieee80211_assoc,
	.deauth = ieee80211_deauth,
	.disassoc = ieee80211_disassoc,
2169 2170
	.join_ibss = ieee80211_join_ibss,
	.leave_ibss = ieee80211_leave_ibss,
2171
	.set_wiphy_params = ieee80211_set_wiphy_params,
2172 2173
	.set_tx_power = ieee80211_set_tx_power,
	.get_tx_power = ieee80211_get_tx_power,
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2174
	.set_wds_peer = ieee80211_set_wds_peer,
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2175
	.rfkill_poll = ieee80211_rfkill_poll,
2176
	CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
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2177
	CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
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2178
	.set_power_mgmt = ieee80211_set_power_mgmt,
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2179
	.set_bitrate_mask = ieee80211_set_bitrate_mask,
2180 2181
	.remain_on_channel = ieee80211_remain_on_channel,
	.cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
2182
	.mgmt_tx = ieee80211_mgmt_tx,
2183
	.mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
2184
	.set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
2185
	.mgmt_frame_register = ieee80211_mgmt_frame_register,
2186 2187
	.set_antenna = ieee80211_set_antenna,
	.get_antenna = ieee80211_get_antenna,
2188 2189
	.set_ringparam = ieee80211_set_ringparam,
	.get_ringparam = ieee80211_get_ringparam,
2190
	.set_rekey_data = ieee80211_set_rekey_data,
2191
};