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-rw-r--r--net/mac80211/Kconfig93
-rw-r--r--net/mac80211/Makefile35
-rw-r--r--net/mac80211/cfg.c552
-rw-r--r--net/mac80211/debugfs_netdev.c60
-rw-r--r--net/mac80211/ieee80211.c199
-rw-r--r--net/mac80211/ieee80211_i.h99
-rw-r--r--net/mac80211/ieee80211_iface.c17
-rw-r--r--net/mac80211/ieee80211_ioctl.c112
-rw-r--r--net/mac80211/ieee80211_led.c35
-rw-r--r--net/mac80211/ieee80211_led.h6
-rw-r--r--net/mac80211/ieee80211_rate.c59
-rw-r--r--net/mac80211/ieee80211_rate.h108
-rw-r--r--net/mac80211/ieee80211_sta.c731
-rw-r--r--net/mac80211/key.c6
-rw-r--r--net/mac80211/rc80211_pid.h285
-rw-r--r--net/mac80211/rc80211_pid_algo.c549
-rw-r--r--net/mac80211/rc80211_pid_debugfs.c223
-rw-r--r--net/mac80211/rc80211_simple.c82
-rw-r--r--net/mac80211/rx.c752
-rw-r--r--net/mac80211/sta_info.c49
-rw-r--r--net/mac80211/sta_info.h50
-rw-r--r--net/mac80211/tx.c370
-rw-r--r--net/mac80211/util.c132
-rw-r--r--net/mac80211/wep.c10
-rw-r--r--net/mac80211/wme.c27
-rw-r--r--net/mac80211/wpa.c14
26 files changed, 3749 insertions, 906 deletions
diff --git a/net/mac80211/Kconfig b/net/mac80211/Kconfig
index ce176e691afe..09c255002e56 100644
--- a/net/mac80211/Kconfig
+++ b/net/mac80211/Kconfig
@@ -10,27 +10,84 @@ config MAC80211
select CFG80211
select NET_SCH_FIFO
---help---
- This option enables the hardware independent IEEE 802.11
- networking stack.
+ This option enables the hardware independent IEEE 802.11
+ networking stack.
-config MAC80211_RCSIMPLE
- bool "'simple' rate control algorithm" if EMBEDDED
- default y
- depends on MAC80211
+menu "Rate control algorithm selection"
+ depends on MAC80211 != n
+
+choice
+ prompt "Default rate control algorithm"
+ default MAC80211_RC_DEFAULT_PID
+ ---help---
+ This option selects the default rate control algorithm
+ mac80211 will use. Note that this default can still be
+ overriden through the ieee80211_default_rc_algo module
+ parameter if different algorithms are available.
+
+config MAC80211_RC_DEFAULT_PID
+ bool "PID controller based rate control algorithm"
+ select MAC80211_RC_PID
+ ---help---
+ Select the PID controller based rate control as the
+ default rate control algorithm. You should choose
+ this unless you know what you are doing.
+
+config MAC80211_RC_DEFAULT_SIMPLE
+ bool "Simple rate control algorithm"
+ select MAC80211_RC_SIMPLE
+ ---help---
+ Select the simple rate control as the default rate
+ control algorithm. Note that this is a non-responsive,
+ dumb algorithm. You should choose the PID rate control
+ instead.
+
+config MAC80211_RC_DEFAULT_NONE
+ bool "No default algorithm"
+ depends on EMBEDDED
help
- This option allows you to turn off the 'simple' rate
- control algorithm in mac80211. If you do turn it off,
- you absolutely need another rate control algorithm.
+ Selecting this option will select no default algorithm
+ and allow you to not build any. Do not choose this
+ option unless you know your driver comes with another
+ suitable algorithm.
+endchoice
+
+comment "Selecting 'y' for an algorithm will"
+comment "build the algorithm into mac80211."
+
+config MAC80211_RC_DEFAULT
+ string
+ default "pid" if MAC80211_RC_DEFAULT_PID
+ default "simple" if MAC80211_RC_DEFAULT_SIMPLE
+ default ""
- Say Y unless you know you will have another algorithm
- available.
+config MAC80211_RC_PID
+ tristate "PID controller based rate control algorithm"
+ ---help---
+ This option enables a TX rate control algorithm for
+ mac80211 that uses a PID controller to select the TX
+ rate.
+
+ Say Y or M unless you're sure you want to use a
+ different rate control algorithm.
+
+config MAC80211_RC_SIMPLE
+ tristate "Simple rate control algorithm (DEPRECATED)"
+ ---help---
+ This option enables a very simple, non-responsive TX
+ rate control algorithm. This algorithm is deprecated
+ and will be removed from the kernel in the near future.
+ It has been replaced by the PID algorithm.
+
+ Say N unless you know what you are doing.
+endmenu
config MAC80211_LEDS
bool "Enable LED triggers"
depends on MAC80211 && LEDS_TRIGGERS
---help---
- This option enables a few LED triggers for different
- packet receive/transmit events.
+ This option enables a few LED triggers for different
+ packet receive/transmit events.
config MAC80211_DEBUGFS
bool "Export mac80211 internals in DebugFS"
@@ -51,6 +108,16 @@ config MAC80211_DEBUG
If you are not trying to debug or develop the ieee80211
subsystem, you most likely want to say N here.
+config MAC80211_HT_DEBUG
+ bool "Enable HT debugging output"
+ depends on MAC80211_DEBUG
+ ---help---
+ This option enables 802.11n High Throughput features
+ debug tracing output.
+
+ If you are not trying to debug of develop the ieee80211
+ subsystem, you most likely want to say N here.
+
config MAC80211_VERBOSE_DEBUG
bool "Verbose debugging output"
depends on MAC80211_DEBUG
diff --git a/net/mac80211/Makefile b/net/mac80211/Makefile
index 1e6237b34846..54f46bc80cfe 100644
--- a/net/mac80211/Makefile
+++ b/net/mac80211/Makefile
@@ -1,11 +1,15 @@
obj-$(CONFIG_MAC80211) += mac80211.o
-mac80211-objs-$(CONFIG_MAC80211_LEDS) += ieee80211_led.o
-mac80211-objs-$(CONFIG_MAC80211_DEBUGFS) += debugfs.o debugfs_sta.o debugfs_netdev.o debugfs_key.o
-mac80211-objs-$(CONFIG_NET_SCHED) += wme.o
-mac80211-objs-$(CONFIG_MAC80211_RCSIMPLE) += rc80211_simple.o
+# objects for PID algorithm
+rc80211_pid-y := rc80211_pid_algo.o
+rc80211_pid-$(CONFIG_MAC80211_DEBUGFS) += rc80211_pid_debugfs.o
-mac80211-objs := \
+# build helper for PID algorithm
+rc-pid-y := $(rc80211_pid-y)
+rc-pid-m := rc80211_pid.o
+
+# mac80211 objects
+mac80211-y := \
ieee80211.o \
ieee80211_ioctl.o \
sta_info.o \
@@ -23,5 +27,22 @@ mac80211-objs := \
tx.o \
key.o \
util.o \
- event.o \
- $(mac80211-objs-y)
+ event.o
+
+mac80211-$(CONFIG_MAC80211_LEDS) += ieee80211_led.o
+mac80211-$(CONFIG_NET_SCHED) += wme.o
+mac80211-$(CONFIG_MAC80211_DEBUGFS) += \
+ debugfs.o \
+ debugfs_sta.o \
+ debugfs_netdev.o \
+ debugfs_key.o
+
+
+# Build rate control algorithm(s)
+CFLAGS_rc80211_simple.o += -DRC80211_SIMPLE_COMPILE
+CFLAGS_rc80211_pid_algo.o += -DRC80211_PID_COMPILE
+mac80211-$(CONFIG_MAC80211_RC_SIMPLE) += rc80211_simple.o
+mac80211-$(CONFIG_MAC80211_RC_PID) += $(rc-pid-$(CONFIG_MAC80211_RC_PID))
+
+# Modular rate algorithms are assigned to mac80211-m - make separate modules
+obj-m += $(mac80211-m)
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 9e2bc1fd0237..22c9619ba776 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1,17 +1,20 @@
/*
* mac80211 configuration hooks for cfg80211
*
- * Copyright 2006 Johannes Berg <johannes@sipsolutions.net>
+ * 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 "ieee80211_rate.h"
static enum ieee80211_if_types
nl80211_type_to_mac80211_type(enum nl80211_iftype type)
@@ -90,7 +93,7 @@ static int ieee80211_change_iface(struct wiphy *wiphy, int ifindex,
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->type == IEEE80211_IF_TYPE_VLAN)
+ if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN)
return -EOPNOTSUPP;
ieee80211_if_reinit(dev);
@@ -99,8 +102,553 @@ static int ieee80211_change_iface(struct wiphy *wiphy, int ifindex,
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;
+ int ret;
+
+ 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;
+ }
+
+ if (mac_addr) {
+ sta = sta_info_get(sdata->local, mac_addr);
+ if (!sta)
+ return -ENOENT;
+ }
+
+ ret = 0;
+ if (!ieee80211_key_alloc(sdata, sta, alg, key_idx,
+ params->key_len, params->key))
+ ret = -ENOMEM;
+
+ if (sta)
+ sta_info_put(sta);
+
+ return ret;
+}
+
+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);
+
+ if (mac_addr) {
+ sta = sta_info_get(sdata->local, mac_addr);
+ if (!sta)
+ return -ENOENT;
+
+ ret = 0;
+ if (sta->key)
+ ieee80211_key_free(sta->key);
+ else
+ ret = -ENOENT;
+
+ sta_info_put(sta);
+ return ret;
+ }
+
+ if (!sdata->keys[key_idx])
+ return -ENOENT;
+
+ ieee80211_key_free(sdata->keys[key_idx]);
+
+ return 0;
+}
+
+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 = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct sta_info *sta = NULL;
+ u8 seq[6] = {0};
+ struct key_params params;
+ struct ieee80211_key *key;
+ u32 iv32;
+ u16 iv16;
+ int err = -ENOENT;
+
+ 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(&params, 0, sizeof(params));
+
+ switch (key->conf.alg) {
+ case ALG_TKIP:
+ params.cipher = WLAN_CIPHER_SUITE_TKIP;
+
+ iv32 = key->u.tkip.iv32;
+ iv16 = key->u.tkip.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, &params);
+ err = 0;
+
+ out:
+ if (sta)
+ sta_info_put(sta);
+ return err;
+}
+
+static int ieee80211_config_default_key(struct wiphy *wiphy,
+ struct net_device *dev,
+ u8 key_idx)
+{
+ struct ieee80211_sub_if_data *sdata;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ ieee80211_set_default_key(sdata, key_idx);
+
+ return 0;
+}
+
+static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
+ u8 *mac, struct station_stats *stats)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct sta_info *sta;
+
+ sta = sta_info_get(local, mac);
+ if (!sta)
+ return -ENOENT;
+
+ /* XXX: verify sta->dev == dev */
+
+ stats->filled = STATION_STAT_INACTIVE_TIME |
+ STATION_STAT_RX_BYTES |
+ STATION_STAT_TX_BYTES;
+
+ stats->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
+ stats->rx_bytes = sta->rx_bytes;
+ stats->tx_bytes = sta->tx_bytes;
+
+ sta_info_put(sta);
+
+ return 0;
+}
+
+/*
+ * 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_beacon(sdata->dev);
+}
+
+static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
+ struct beacon_parameters *params)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct beacon_data *old;
+
+ if (sdata->vif.type != IEEE80211_IF_TYPE_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 = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct beacon_data *old;
+
+ if (sdata->vif.type != IEEE80211_IF_TYPE_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 = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct beacon_data *old;
+
+ if (sdata->vif.type != IEEE80211_IF_TYPE_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_beacon(dev);
+}
+
+/* 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->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->dev;
+ skb->protocol = eth_type_trans(skb, sta->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_hw_mode *mode;
+
+ if (params->station_flags & STATION_FLAG_CHANGED) {
+ 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;
+ }
+
+ if (params->aid) {
+ sta->aid = params->aid;
+ if (sta->aid > IEEE80211_MAX_AID)
+ 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;
+ mode = local->oper_hw_mode;
+ for (i = 0; i < params->supported_rates_len; i++) {
+ int rate = (params->supported_rates[i] & 0x7f) * 5;
+ for (j = 0; j < mode->num_rates; j++) {
+ if (mode->rates[j].rate == rate)
+ rates |= BIT(j);
+ }
+ }
+ sta->supp_rates = rates;
+ }
+}
+
+static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
+ u8 *mac, struct station_parameters *params)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct sta_info *sta;
+ struct ieee80211_sub_if_data *sdata;
+
+ /* Prevent a race with changing the rate control algorithm */
+ if (!netif_running(dev))
+ return -ENETDOWN;
+
+ /* XXX: get sta belonging to dev */
+ sta = sta_info_get(local, mac);
+ if (sta) {
+ sta_info_put(sta);
+ return -EEXIST;
+ }
+
+ if (params->vlan) {
+ sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
+
+ if (sdata->vif.type != IEEE80211_IF_TYPE_VLAN ||
+ sdata->vif.type != IEEE80211_IF_TYPE_AP)
+ return -EINVAL;
+ } else
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+ sta = sta_info_add(local, dev, mac, GFP_KERNEL);
+ if (!sta)
+ return -ENOMEM;
+
+ sta->dev = sdata->dev;
+ if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN ||
+ sdata->vif.type == IEEE80211_IF_TYPE_AP)
+ ieee80211_send_layer2_update(sta);
+
+ sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
+
+ sta_apply_parameters(local, sta, params);
+
+ rate_control_rate_init(sta, local);
+
+ sta_info_put(sta);
+
+ return 0;
+}
+
+static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
+ u8 *mac)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct sta_info *sta;
+
+ if (mac) {
+ /* XXX: get sta belonging to dev */
+ sta = sta_info_get(local, mac);
+ if (!sta)
+ return -ENOENT;
+
+ sta_info_free(sta);
+ sta_info_put(sta);
+ } else
+ sta_info_flush(local, dev);
+
+ return 0;
+}
+
+static int ieee80211_change_station(struct wiphy *wiphy,
+ struct net_device *dev,
+ u8 *mac,
+ struct station_parameters *params)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct sta_info *sta;
+ struct ieee80211_sub_if_data *vlansdata;
+
+ /* XXX: get sta belonging to dev */
+ sta = sta_info_get(local, mac);
+ if (!sta)
+ return -ENOENT;
+
+ if (params->vlan && params->vlan != sta->dev) {
+ vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
+
+ if (vlansdata->vif.type != IEEE80211_IF_TYPE_VLAN ||
+ vlansdata->vif.type != IEEE80211_IF_TYPE_AP)
+ return -EINVAL;
+
+ sta->dev = params->vlan;
+ ieee80211_send_layer2_update(sta);
+ }
+
+ sta_apply_parameters(local, sta, params);
+
+ sta_info_put(sta);
+
+ 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,
};
diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c
index f0e6ab7eb624..829872a3ae81 100644
--- a/net/mac80211/debugfs_netdev.c
+++ b/net/mac80211/debugfs_netdev.c
@@ -91,8 +91,7 @@ static const struct file_operations name##_ops = { \
/* common attributes */
IEEE80211_IF_FILE(channel_use, channel_use, DEC);
IEEE80211_IF_FILE(drop_unencrypted, drop_unencrypted, DEC);
-IEEE80211_IF_FILE(eapol, eapol, DEC);
-IEEE80211_IF_FILE(ieee8021_x, ieee802_1x, DEC);
+IEEE80211_IF_FILE(ieee802_1x_pac, ieee802_1x_pac, DEC);
/* STA/IBSS attributes */
IEEE80211_IF_FILE(state, u.sta.state, DEC);
@@ -119,13 +118,12 @@ static ssize_t ieee80211_if_fmt_flags(
sdata->u.sta.flags & IEEE80211_STA_AUTHENTICATED ? "AUTH\n" : "",
sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED ? "ASSOC\n" : "",
sdata->u.sta.flags & IEEE80211_STA_PROBEREQ_POLL ? "PROBEREQ POLL\n" : "",
- sdata->flags & IEEE80211_SDATA_USE_PROTECTION ? "CTS prot\n" : "");
+ sdata->bss_conf.use_cts_prot ? "CTS prot\n" : "");
}
__IEEE80211_IF_FILE(flags);
/* AP attributes */
IEEE80211_IF_FILE(num_sta_ps, u.ap.num_sta_ps, ATOMIC);
-IEEE80211_IF_FILE(dtim_period, u.ap.dtim_period, DEC);
IEEE80211_IF_FILE(dtim_count, u.ap.dtim_count, DEC);
IEEE80211_IF_FILE(num_beacons, u.ap.num_beacons, DEC);
IEEE80211_IF_FILE(force_unicast_rateidx, u.ap.force_unicast_rateidx, DEC);
@@ -139,26 +137,6 @@ static ssize_t ieee80211_if_fmt_num_buffered_multicast(
}
__IEEE80211_IF_FILE(num_buffered_multicast);
-static ssize_t ieee80211_if_fmt_beacon_head_len(
- const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
-{
- if (sdata->u.ap.beacon_head)
- return scnprintf(buf, buflen, "%d\n",
- sdata->u.ap.beacon_head_len);
- return scnprintf(buf, buflen, "\n");
-}
-__IEEE80211_IF_FILE(beacon_head_len);
-
-static ssize_t ieee80211_if_fmt_beacon_tail_len(
- const struct ieee80211_sub_if_data *sdata, char *buf, int buflen)
-{
- if (sdata->u.ap.beacon_tail)
- return scnprintf(buf, buflen, "%d\n",
- sdata->u.ap.beacon_tail_len);
- return scnprintf(buf, buflen, "\n");
-}
-__IEEE80211_IF_FILE(beacon_tail_len);
-
/* WDS attributes */
IEEE80211_IF_FILE(peer, u.wds.remote_addr, MAC);
@@ -170,8 +148,7 @@ static void add_sta_files(struct ieee80211_sub_if_data *sdata)
{
DEBUGFS_ADD(channel_use, sta);
DEBUGFS_ADD(drop_unencrypted, sta);
- DEBUGFS_ADD(eapol, sta);
- DEBUGFS_ADD(ieee8021_x, sta);
+ DEBUGFS_ADD(ieee802_1x_pac, sta);
DEBUGFS_ADD(state, sta);
DEBUGFS_ADD(bssid, sta);
DEBUGFS_ADD(prev_bssid, sta);
@@ -192,25 +169,20 @@ static void add_ap_files(struct ieee80211_sub_if_data *sdata)
{
DEBUGFS_ADD(channel_use, ap);
DEBUGFS_ADD(drop_unencrypted, ap);
- DEBUGFS_ADD(eapol, ap);
- DEBUGFS_ADD(ieee8021_x, ap);
+ DEBUGFS_ADD(ieee802_1x_pac, ap);
DEBUGFS_ADD(num_sta_ps, ap);
- DEBUGFS_ADD(dtim_period, ap);
DEBUGFS_ADD(dtim_count, ap);
DEBUGFS_ADD(num_beacons, ap);
DEBUGFS_ADD(force_unicast_rateidx, ap);
DEBUGFS_ADD(max_ratectrl_rateidx, ap);
DEBUGFS_ADD(num_buffered_multicast, ap);
- DEBUGFS_ADD(beacon_head_len, ap);
- DEBUGFS_ADD(beacon_tail_len, ap);
}
static void add_wds_files(struct ieee80211_sub_if_data *sdata)
{
DEBUGFS_ADD(channel_use, wds);
DEBUGFS_ADD(drop_unencrypted, wds);
- DEBUGFS_ADD(eapol, wds);
- DEBUGFS_ADD(ieee8021_x, wds);
+ DEBUGFS_ADD(ieee802_1x_pac, wds);
DEBUGFS_ADD(peer, wds);
}
@@ -218,8 +190,7 @@ static void add_vlan_files(struct ieee80211_sub_if_data *sdata)
{
DEBUGFS_ADD(channel_use, vlan);
DEBUGFS_ADD(drop_unencrypted, vlan);
- DEBUGFS_ADD(eapol, vlan);
- DEBUGFS_ADD(ieee8021_x, vlan);
+ DEBUGFS_ADD(ieee802_1x_pac, vlan);
}
static void add_monitor_files(struct ieee80211_sub_if_data *sdata)
@@ -231,7 +202,7 @@ static void add_files(struct ieee80211_sub_if_data *sdata)
if (!sdata->debugfsdir)
return;
- switch (sdata->type) {
+ switch (sdata->vif.type) {
case IEEE80211_IF_TYPE_STA:
case IEEE80211_IF_TYPE_IBSS:
add_sta_files(sdata);
@@ -263,8 +234,7 @@ static void del_sta_files(struct ieee80211_sub_if_data *sdata)
{
DEBUGFS_DEL(channel_use, sta);
DEBUGFS_DEL(drop_unencrypted, sta);
- DEBUGFS_DEL(eapol, sta);
- DEBUGFS_DEL(ieee8021_x, sta);
+ DEBUGFS_DEL(ieee802_1x_pac, sta);
DEBUGFS_DEL(state, sta);
DEBUGFS_DEL(bssid, sta);
DEBUGFS_DEL(prev_bssid, sta);
@@ -285,25 +255,20 @@ static void del_ap_files(struct ieee80211_sub_if_data *sdata)
{
DEBUGFS_DEL(channel_use, ap);
DEBUGFS_DEL(drop_unencrypted, ap);
- DEBUGFS_DEL(eapol, ap);
- DEBUGFS_DEL(ieee8021_x, ap);
+ DEBUGFS_DEL(ieee802_1x_pac, ap);
DEBUGFS_DEL(num_sta_ps, ap);
- DEBUGFS_DEL(dtim_period, ap);
DEBUGFS_DEL(dtim_count, ap);
DEBUGFS_DEL(num_beacons, ap);
DEBUGFS_DEL(force_unicast_rateidx, ap);
DEBUGFS_DEL(max_ratectrl_rateidx, ap);
DEBUGFS_DEL(num_buffered_multicast, ap);
- DEBUGFS_DEL(beacon_head_len, ap);
- DEBUGFS_DEL(beacon_tail_len, ap);
}
static void del_wds_files(struct ieee80211_sub_if_data *sdata)
{
DEBUGFS_DEL(channel_use, wds);
DEBUGFS_DEL(drop_unencrypted, wds);
- DEBUGFS_DEL(eapol, wds);
- DEBUGFS_DEL(ieee8021_x, wds);
+ DEBUGFS_DEL(ieee802_1x_pac, wds);
DEBUGFS_DEL(peer, wds);
}
@@ -311,8 +276,7 @@ static void del_vlan_files(struct ieee80211_sub_if_data *sdata)
{
DEBUGFS_DEL(channel_use, vlan);
DEBUGFS_DEL(drop_unencrypted, vlan);
- DEBUGFS_DEL(eapol, vlan);
- DEBUGFS_DEL(ieee8021_x, vlan);
+ DEBUGFS_DEL(ieee802_1x_pac, vlan);
}
static void del_monitor_files(struct ieee80211_sub_if_data *sdata)
@@ -362,7 +326,7 @@ void ieee80211_debugfs_add_netdev(struct ieee80211_sub_if_data *sdata)
void ieee80211_debugfs_remove_netdev(struct ieee80211_sub_if_data *sdata)
{
- del_files(sdata, sdata->type);
+ del_files(sdata, sdata->vif.type);
debugfs_remove(sdata->debugfsdir);
sdata->debugfsdir = NULL;
}
diff --git a/net/mac80211/ieee80211.c b/net/mac80211/ieee80211.c
index 6378850d8580..5dcc2d61551f 100644
--- a/net/mac80211/ieee80211.c
+++ b/net/mac80211/ieee80211.c
@@ -34,6 +34,8 @@
#include "debugfs.h"
#include "debugfs_netdev.h"
+#define SUPP_MCS_SET_LEN 16
+
/*
* For seeing transmitted packets on monitor interfaces
* we have a radiotap header too.
@@ -175,21 +177,21 @@ static int ieee80211_open(struct net_device *dev)
/*
* check whether it may have the same address
*/
- if (!identical_mac_addr_allowed(sdata->type,
- nsdata->type))
+ if (!identical_mac_addr_allowed(sdata->vif.type,
+ nsdata->vif.type))
return -ENOTUNIQ;
/*
* can only add VLANs to enabled APs
*/
- if (sdata->type == IEEE80211_IF_TYPE_VLAN &&
- nsdata->type == IEEE80211_IF_TYPE_AP &&
+ if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN &&
+ nsdata->vif.type == IEEE80211_IF_TYPE_AP &&
netif_running(nsdata->dev))
sdata->u.vlan.ap = nsdata;
}
}
- switch (sdata->type) {
+ switch (sdata->vif.type) {
case IEEE80211_IF_TYPE_WDS:
if (is_zero_ether_addr(sdata->u.wds.remote_addr))
return -ENOLINK;
@@ -217,9 +219,10 @@ static int ieee80211_open(struct net_device *dev)
if (res)
return res;
ieee80211_hw_config(local);
+ ieee80211_led_radio(local, local->hw.conf.radio_enabled);
}
- switch (sdata->type) {
+ switch (sdata->vif.type) {
case IEEE80211_IF_TYPE_VLAN:
list_add(&sdata->u.vlan.list, &sdata->u.vlan.ap->u.ap.vlans);
/* no need to tell driver */
@@ -240,8 +243,8 @@ static int ieee80211_open(struct net_device *dev)
sdata->u.sta.flags &= ~IEEE80211_STA_PREV_BSSID_SET;
/* fall through */
default:
- conf.if_id = dev->ifindex;
- conf.type = sdata->type;
+ conf.vif = &sdata->vif;
+ conf.type = sdata->vif.type;
conf.mac_addr = dev->dev_addr;
res = local->ops->add_interface(local_to_hw(local), &conf);
if (res && !local->open_count && local->ops->stop)
@@ -253,7 +256,7 @@ static int ieee80211_open(struct net_device *dev)
ieee80211_reset_erp_info(dev);
ieee80211_enable_keys(sdata);
- if (sdata->type == IEEE80211_IF_TYPE_STA &&
+ if (sdata->vif.type == IEEE80211_IF_TYPE_STA &&
!(sdata->flags & IEEE80211_SDATA_USERSPACE_MLME))
netif_carrier_off(dev);
else
@@ -290,9 +293,20 @@ static int ieee80211_stop(struct net_device *dev)
struct ieee80211_sub_if_data *sdata;
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_if_init_conf conf;
+ struct sta_info *sta;
+ int i;
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ list_for_each_entry(sta, &local->sta_list, list) {
+ if (sta->dev == dev)
+ for (i = 0; i < STA_TID_NUM; i++)
+ ieee80211_sta_stop_rx_ba_session(sta->dev,
+ sta->addr, i,
+ WLAN_BACK_RECIPIENT,
+ WLAN_REASON_QSTA_LEAVE_QBSS);
+ }
+
netif_stop_queue(dev);
/*
@@ -309,10 +323,17 @@ static int ieee80211_stop(struct net_device *dev)
dev_mc_unsync(local->mdev, dev);
- /* down all dependent devices, that is VLANs */
- if (sdata->type == IEEE80211_IF_TYPE_AP) {
+ /* APs need special treatment */
+ if (sdata->vif.type == IEEE80211_IF_TYPE_AP) {
struct ieee80211_sub_if_data *vlan, *tmp;
+ struct beacon_data *old_beacon = sdata->u.ap.beacon;
+ /* remove beacon */
+ rcu_assign_pointer(sdata->u.ap.beacon, NULL);
+ synchronize_rcu();
+ kfree(old_beacon);
+
+ /* down all dependent devices, that is VLANs */
list_for_each_entry_safe(vlan, tmp, &sdata->u.ap.vlans,
u.vlan.list)
dev_close(vlan->dev);
@@ -321,7 +342,7 @@ static int ieee80211_stop(struct net_device *dev)
local->open_count--;
- switch (sdata->type) {
+ switch (sdata->vif.type) {
case IEEE80211_IF_TYPE_VLAN:
list_del(&sdata->u.vlan.list);
sdata->u.vlan.ap = NULL;
@@ -350,11 +371,14 @@ static int ieee80211_stop(struct net_device *dev)
synchronize_rcu();
skb_queue_purge(&sdata->u.sta.skb_queue);
- if (!local->ops->hw_scan &&
- local->scan_dev == sdata->dev) {
- local->sta_scanning = 0;
- cancel_delayed_work(&local->scan_work);
+ if (local->scan_dev == sdata->dev) {
+ if (!local->ops->hw_scan) {
+ local->sta_sw_scanning = 0;
+ cancel_delayed_work(&local->scan_work);
+ } else
+ local->sta_hw_scanning = 0;
}
+
flush_workqueue(local->hw.workqueue);
sdata->u.sta.flags &= ~IEEE80211_STA_PRIVACY_INVOKED;
@@ -363,8 +387,8 @@ static int ieee80211_stop(struct net_device *dev)
sdata->u.sta.extra_ie_len = 0;
/* fall through */
default:
- conf.if_id = dev->ifindex;
- conf.type = sdata->type;
+ conf.vif = &sdata->vif;
+ conf.type = sdata->vif.type;
conf.mac_addr = dev->dev_addr;
/* disable all keys for as long as this netdev is down */
ieee80211_disable_keys(sdata);
@@ -378,6 +402,8 @@ static int ieee80211_stop(struct net_device *dev)
if (local->ops->stop)
local->ops->stop(local_to_hw(local));
+ ieee80211_led_radio(local, 0);
+
tasklet_disable(&local->tx_pending_tasklet);
tasklet_disable(&local->tasklet);
}
@@ -485,20 +511,20 @@ static int __ieee80211_if_config(struct net_device *dev,
return 0;
memset(&conf, 0, sizeof(conf));
- conf.type = sdata->type;
- if (sdata->type == IEEE80211_IF_TYPE_STA ||
- sdata->type == IEEE80211_IF_TYPE_IBSS) {
+ conf.type = sdata->vif.type;
+ if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
+ sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
conf.bssid = sdata->u.sta.bssid;
conf.ssid = sdata->u.sta.ssid;
conf.ssid_len = sdata->u.sta.ssid_len;
- } else if (sdata->type == IEEE80211_IF_TYPE_AP) {
+ } else if (sdata->vif.type == IEEE80211_IF_TYPE_AP) {
conf.ssid = sdata->u.ap.ssid;
conf.ssid_len = sdata->u.ap.ssid_len;
conf.beacon = beacon;
conf.beacon_control = control;
}
return local->ops->config_interface(local_to_hw(local),
- dev->ifindex, &conf);
+ &sdata->vif, &conf);
}
int ieee80211_if_config(struct net_device *dev)
@@ -510,11 +536,13 @@ int ieee80211_if_config_beacon(struct net_device *dev)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_tx_control control;
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct sk_buff *skb;
if (!(local->hw.flags & IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE))
return 0;
- skb = ieee80211_beacon_get(local_to_hw(local), dev->ifindex, &control);
+ skb = ieee80211_beacon_get(local_to_hw(local), &sdata->vif,
+ &control);
if (!skb)
return -ENOMEM;
return __ieee80211_if_config(dev, skb, &control);
@@ -526,7 +554,7 @@ int ieee80211_hw_config(struct ieee80211_local *local)
struct ieee80211_channel *chan;
int ret = 0;
- if (local->sta_scanning) {
+ if (local->sta_sw_scanning) {
chan = local->scan_channel;
mode = local->scan_hw_mode;
} else {
@@ -560,25 +588,79 @@ int ieee80211_hw_config(struct ieee80211_local *local)
return ret;
}
-void ieee80211_erp_info_change_notify(struct net_device *dev, u8 changes)
+/**
+ * ieee80211_hw_config_ht should be used only after legacy configuration
+ * has been determined, as ht configuration depends upon the hardware's
+ * HT abilities for a _specific_ band.
+ */
+int ieee80211_hw_config_ht(struct ieee80211_local *local, int enable_ht,
+ struct ieee80211_ht_info *req_ht_cap,
+ struct ieee80211_ht_bss_info *req_bss_cap)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (local->ops->erp_ie_changed)
- local->ops->erp_ie_changed(local_to_hw(local), changes,
- !!(sdata->flags & IEEE80211_SDATA_USE_PROTECTION),
- !(sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE));
+ struct ieee80211_conf *conf = &local->hw.conf;
+ struct ieee80211_hw_mode *mode = conf->mode;
+ int i;
+
+ /* HT is not supported */
+ if (!mode->ht_info.ht_supported) {
+ conf->flags &= ~IEEE80211_CONF_SUPPORT_HT_MODE;
+ return -EOPNOTSUPP;
+ }
+
+ /* disable HT */
+ if (!enable_ht) {
+ conf->flags &= ~IEEE80211_CONF_SUPPORT_HT_MODE;
+ } else {
+ conf->flags |= IEEE80211_CONF_SUPPORT_HT_MODE;
+ conf->ht_conf.cap = req_ht_cap->cap & mode->ht_info.cap;
+ conf->ht_conf.cap &= ~(IEEE80211_HT_CAP_MIMO_PS);
+ conf->ht_conf.cap |=
+ mode->ht_info.cap & IEEE80211_HT_CAP_MIMO_PS;
+ conf->ht_bss_conf.primary_channel =
+ req_bss_cap->primary_channel;
+ conf->ht_bss_conf.bss_cap = req_bss_cap->bss_cap;
+ conf->ht_bss_conf.bss_op_mode = req_bss_cap->bss_op_mode;
+ for (i = 0; i < SUPP_MCS_SET_LEN; i++)
+ conf->ht_conf.supp_mcs_set[i] =
+ mode->ht_info.supp_mcs_set[i] &
+ req_ht_cap->supp_mcs_set[i];
+
+ /* In STA mode, this gives us indication
+ * to the AP's mode of operation */
+ conf->ht_conf.ht_supported = 1;
+ conf->ht_conf.ampdu_factor = req_ht_cap->ampdu_factor;
+ conf->ht_conf.ampdu_density = req_ht_cap->ampdu_density;
+ }
+
+ local->ops->conf_ht(local_to_hw(local), &local->hw.conf);
+
+ return 0;
+}
+
+void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
+ u32 changed)
+{
+ struct ieee80211_local *local = sdata->local;
+
+ if (!changed)
+ return;
+
+ if (local->ops->bss_info_changed)
+ local->ops->bss_info_changed(local_to_hw(local),
+ &sdata->vif,
+ &sdata->bss_conf,
+ changed);
}
void ieee80211_reset_erp_info(struct net_device *dev)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- sdata->flags &= ~(IEEE80211_SDATA_USE_PROTECTION |
- IEEE80211_SDATA_SHORT_PREAMBLE);
- ieee80211_erp_info_change_notify(dev,
- IEEE80211_ERP_CHANGE_PROTECTION |
- IEEE80211_ERP_CHANGE_PREAMBLE);
+ sdata->bss_conf.use_cts_prot = 0;
+ sdata->bss_conf.use_short_preamble = 0;
+ ieee80211_bss_info_change_notify(sdata,
+ BSS_CHANGED_ERP_CTS_PROT |
+ BSS_CHANGED_ERP_PREAMBLE);
}
void ieee80211_tx_status_irqsafe(struct ieee80211_hw *hw,
@@ -635,7 +717,7 @@ static void ieee80211_tasklet_handler(unsigned long data)
case IEEE80211_RX_MSG:
/* status is in skb->cb */
memcpy(&rx_status, skb->cb, sizeof(rx_status));
- /* Clear skb->type in order to not confuse kernel
+ /* Clear skb->pkt_type in order to not confuse kernel
* netstack. */
skb->pkt_type = 0;
__ieee80211_rx(local_to_hw(local), skb, &rx_status);
@@ -670,7 +752,7 @@ static void ieee80211_remove_tx_extra(struct ieee80211_local *local,
struct ieee80211_tx_packet_data *pkt_data;
pkt_data = (struct ieee80211_tx_packet_data *)skb->cb;
- pkt_data->ifindex = control->ifindex;
+ pkt_data->ifindex = vif_to_sdata(control->vif)->dev->ifindex;
pkt_data->flags = 0;
if (control->flags & IEEE80211_TXCTL_REQ_TX_STATUS)
pkt_data->flags |= IEEE80211_TXPD_REQ_TX_STATUS;
@@ -678,6 +760,8 @@ static void ieee80211_remove_tx_extra(struct ieee80211_local *local,
pkt_data->flags |= IEEE80211_TXPD_DO_NOT_ENCRYPT;
if (control->flags & IEEE80211_TXCTL_REQUEUE)
pkt_data->flags |= IEEE80211_TXPD_REQUEUE;
+ if (control->flags & IEEE80211_TXCTL_EAPOL_FRAME)
+ pkt_data->flags |= IEEE80211_TXPD_EAPOL_FRAME;
pkt_data->queue = control->queue;
hdrlen = ieee80211_get_hdrlen_from_skb(skb);
@@ -805,10 +889,8 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb,
sta_info_put(sta);
return;
}
- } else {
- /* FIXME: STUPID to call this with both local and local->mdev */
- rate_control_tx_status(local, local->mdev, skb, status);
- }
+ } else
+ rate_control_tx_status(local->mdev, skb, status);
ieee80211_led_tx(local, 0);
@@ -894,7 +976,7 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb,
if (!monitors || !skb)
goto out;
- if (sdata->type == IEEE80211_IF_TYPE_MNTR) {
+ if (sdata->vif.type == IEEE80211_IF_TYPE_MNTR) {
if (!netif_running(sdata->dev))
continue;
monitors--;
@@ -1016,7 +1098,7 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len,
mdev->header_ops = &ieee80211_header_ops;
mdev->set_multicast_list = ieee80211_master_set_multicast_list;
- sdata->type = IEEE80211_IF_TYPE_AP;
+ sdata->vif.type = IEEE80211_IF_TYPE_AP;
sdata->dev = mdev;
sdata->local = local;
sdata->u.ap.force_unicast_rateidx = -1;
@@ -1260,33 +1342,38 @@ static int __init ieee80211_init(void)
BUILD_BUG_ON(sizeof(struct ieee80211_tx_packet_data) > sizeof(skb->cb));
-#ifdef CONFIG_MAC80211_RCSIMPLE
- ret = ieee80211_rate_control_register(&mac80211_rcsimple);
+ ret = rc80211_simple_init();
if (ret)
- return ret;
-#endif
+ goto fail;
+
+ ret = rc80211_pid_init();
+ if (ret)
+ goto fail_simple;
ret = ieee80211_wme_register();
if (ret) {
-#ifdef CONFIG_MAC80211_RCSIMPLE
- ieee80211_rate_control_unregister(&mac80211_rcsimple);
-#endif
printk(KERN_DEBUG "ieee80211_init: failed to "
"initialize WME (err=%d)\n", ret);
- return ret;
+ goto fail_pid;
}
ieee80211_debugfs_netdev_init();
ieee80211_regdomain_init();
return 0;
+
+ fail_pid:
+ rc80211_simple_exit();
+ fail_simple:
+ rc80211_pid_exit();
+ fail:
+ return ret;
}
static void __exit ieee80211_exit(void)
{
-#ifdef CONFIG_MAC80211_RCSIMPLE
- ieee80211_rate_control_unregister(&mac80211_rcsimple);
-#endif
+ rc80211_simple_exit();
+ rc80211_pid_exit();
ieee80211_wme_unregister();
ieee80211_debugfs_netdev_exit();
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 72e1c93dd87e..72ecbf7bf962 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -89,6 +89,8 @@ struct ieee80211_sta_bss {
size_t rsn_ie_len;
u8 *wmm_ie;
size_t wmm_ie_len;
+ u8 *ht_ie;
+ size_t ht_ie_len;
#define IEEE80211_MAX_SUPP_RATES 32
u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
size_t supp_rates_len;
@@ -121,6 +123,7 @@ typedef enum {
/* frame is destined to interface currently processed (incl. multicast frames) */
#define IEEE80211_TXRXD_RXRA_MATCH BIT(5)
#define IEEE80211_TXRXD_TX_INJECTED BIT(6)
+#define IEEE80211_TXRXD_RX_AMSDU BIT(7)
struct ieee80211_txrx_data {
struct sk_buff *skb;
struct net_device *dev;
@@ -161,6 +164,7 @@ struct ieee80211_txrx_data {
#define IEEE80211_TXPD_REQ_TX_STATUS BIT(0)
#define IEEE80211_TXPD_DO_NOT_ENCRYPT BIT(1)
#define IEEE80211_TXPD_REQUEUE BIT(2)
+#define IEEE80211_TXPD_EAPOL_FRAME BIT(3)
/* Stored in sk_buff->cb */
struct ieee80211_tx_packet_data {
int ifindex;
@@ -186,9 +190,14 @@ typedef ieee80211_txrx_result (*ieee80211_tx_handler)
typedef ieee80211_txrx_result (*ieee80211_rx_handler)
(struct ieee80211_txrx_data *rx);
+struct beacon_data {
+ u8 *head, *tail;
+ int head_len, tail_len;
+ int dtim_period;
+};
+
struct ieee80211_if_ap {
- u8 *beacon_head, *beacon_tail;
- int beacon_head_len, beacon_tail_len;
+ struct beacon_data *beacon;
struct list_head vlans;
@@ -201,7 +210,7 @@ struct ieee80211_if_ap {
u8 tim[sizeof(unsigned long) * BITS_TO_LONGS(IEEE80211_MAX_AID + 1)];
atomic_t num_sta_ps; /* number of stations in PS mode */
struct sk_buff_head ps_bc_buf;
- int dtim_period, dtim_count;
+ int dtim_count;
int force_unicast_rateidx; /* forced TX rateidx for unicast frames */
int max_ratectrl_rateidx; /* max TX rateidx for rate control */
int num_beacons; /* number of TXed beacon frames for this BSS */
@@ -282,15 +291,9 @@ struct ieee80211_if_sta {
/* flags used in struct ieee80211_sub_if_data.flags */
#define IEEE80211_SDATA_ALLMULTI BIT(0)
#define IEEE80211_SDATA_PROMISC BIT(1)
-#define IEEE80211_SDATA_USE_PROTECTION BIT(2) /* CTS protect ERP frames */
-/* use short preamble with IEEE 802.11b: this flag is set when the AP or beacon
- * generator reports that there are no present stations that cannot support short
- * preambles */
-#define IEEE80211_SDATA_SHORT_PREAMBLE BIT(3)
-#define IEEE80211_SDATA_USERSPACE_MLME BIT(4)
+#define IEEE80211_SDATA_USERSPACE_MLME BIT(2)
struct ieee80211_sub_if_data {
struct list_head list;
- enum ieee80211_if_types type;
struct wireless_dev wdev;
@@ -303,11 +306,11 @@ struct ieee80211_sub_if_data {
unsigned int flags;
int drop_unencrypted;
- int eapol; /* 0 = process EAPOL frames as normal data frames,
- * 1 = send EAPOL frames through wlan#ap to hostapd
- * (default) */
- int ieee802_1x; /* IEEE 802.1X PAE - drop packet to/from unauthorized
- * port */
+ /*
+ * IEEE 802.1X Port access control in effect,
+ * drop packets to/from unauthorized port
+ */
+ int ieee802_1x_pac;
u16 sequence;
@@ -319,6 +322,15 @@ struct ieee80211_sub_if_data {
struct ieee80211_key *keys[NUM_DEFAULT_KEYS];
struct ieee80211_key *default_key;
+ /*
+ * BSS configuration for this interface.
+ *
+ * FIXME: I feel bad putting this here when we already have a
+ * bss pointer, but the bss pointer is just wrong when
+ * you have multiple virtual STA mode interfaces...
+ * This needs to be fixed.
+ */
+ struct ieee80211_bss_conf bss_conf;
struct ieee80211_if_ap *bss; /* BSS that this device belongs to */
union {
@@ -336,8 +348,7 @@ struct ieee80211_sub_if_data {
struct {
struct dentry *channel_use;
struct dentry *drop_unencrypted;
- struct dentry *eapol;
- struct dentry *ieee8021_x;
+ struct dentry *ieee802_1x_pac;
struct dentry *state;
struct dentry *bssid;
struct dentry *prev_bssid;
@@ -356,30 +367,24 @@ struct ieee80211_sub_if_data {
struct {
struct dentry *channel_use;
struct dentry *drop_unencrypted;
- struct dentry *eapol;
- struct dentry *ieee8021_x;
+ struct dentry *ieee802_1x_pac;
struct dentry *num_sta_ps;
- struct dentry *dtim_period;
struct dentry *dtim_count;
struct dentry *num_beacons;
struct dentry *force_unicast_rateidx;
struct dentry *max_ratectrl_rateidx;
struct dentry *num_buffered_multicast;
- struct dentry *beacon_head_len;
- struct dentry *beacon_tail_len;
} ap;
struct {
struct dentry *channel_use;
struct dentry *drop_unencrypted;
- struct dentry *eapol;
- struct dentry *ieee8021_x;
+ struct dentry *ieee802_1x_pac;
struct dentry *peer;
} wds;
struct {
struct dentry *channel_use;
struct dentry *drop_unencrypted;
- struct dentry *eapol;
- struct dentry *ieee8021_x;
+ struct dentry *ieee802_1x_pac;
} vlan;
struct {
struct dentry *mode;
@@ -387,8 +392,16 @@ struct ieee80211_sub_if_data {
struct dentry *default_key;
} debugfs;
#endif
+ /* must be last, dynamically sized area in this! */
+ struct ieee80211_vif vif;
};
+static inline
+struct ieee80211_sub_if_data *vif_to_sdata(struct ieee80211_vif *p)
+{
+ return container_of(p, struct ieee80211_sub_if_data, vif);
+}
+
#define IEEE80211_DEV_TO_SUB_IF(dev) netdev_priv(dev)
enum {
@@ -470,7 +483,8 @@ struct ieee80211_local {
struct list_head interfaces;
- int sta_scanning;
+ bool sta_sw_scanning;
+ bool sta_hw_scanning;
int scan_channel_idx;
enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
unsigned long last_scan_completed;
@@ -483,10 +497,6 @@ struct ieee80211_local {
struct list_head sta_bss_list;
struct ieee80211_sta_bss *sta_bss_hash[STA_HASH_SIZE];
spinlock_t sta_bss_lock;
-#define IEEE80211_SCAN_MATCH_SSID BIT(0)
-#define IEEE80211_SCAN_WPA_ONLY BIT(1)
-#define IEEE80211_SCAN_EXTRA_INFO BIT(2)
- int scan_flags;
/* SNMP counters */
/* dot11CountersTable */
@@ -503,8 +513,9 @@ struct ieee80211_local {
#ifdef CONFIG_MAC80211_LEDS
int tx_led_counter, rx_led_counter;
- struct led_trigger *tx_led, *rx_led, *assoc_led;
- char tx_led_name[32], rx_led_name[32], assoc_led_name[32];
+ struct led_trigger *tx_led, *rx_led, *assoc_led, *radio_led;
+ char tx_led_name[32], rx_led_name[32],
+ assoc_led_name[32], radio_led_name[32];
#endif
u32 channel_use;
@@ -708,6 +719,9 @@ int ieee80211_if_update_wds(struct net_device *dev, u8 *remote_addr);
void ieee80211_if_setup(struct net_device *dev);
struct ieee80211_rate *ieee80211_get_rate(struct ieee80211_local *local,
int phymode, int hwrate);
+int ieee80211_hw_config_ht(struct ieee80211_local *local, int enable_ht,
+ struct ieee80211_ht_info *req_ht_cap,
+ struct ieee80211_ht_bss_info *req_bss_cap);
/* ieee80211_ioctl.c */
extern const struct iw_handler_def ieee80211_iw_handler_def;
@@ -749,7 +763,8 @@ int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len);
void ieee80211_sta_req_auth(struct net_device *dev,
struct ieee80211_if_sta *ifsta);
int ieee80211_sta_scan_results(struct net_device *dev, char *buf, size_t len);
-void ieee80211_sta_rx_scan(struct net_device *dev, struct sk_buff *skb,
+ieee80211_txrx_result ieee80211_sta_rx_scan(struct net_device *dev,
+ struct sk_buff *skb,
struct ieee80211_rx_status *rx_status);
void ieee80211_rx_bss_list_init(struct net_device *dev);
void ieee80211_rx_bss_list_deinit(struct net_device *dev);
@@ -759,9 +774,17 @@ struct sta_info * ieee80211_ibss_add_sta(struct net_device *dev,
u8 *addr);
int ieee80211_sta_deauthenticate(struct net_device *dev, u16 reason);
int ieee80211_sta_disassociate(struct net_device *dev, u16 reason);
-void ieee80211_erp_info_change_notify(struct net_device *dev, u8 changes);
+void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
+ u32 changed);
void ieee80211_reset_erp_info(struct net_device *dev);
-
+int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap *ht_cap_ie,
+ struct ieee80211_ht_info *ht_info);
+int ieee80211_ht_addt_info_ie_to_ht_bss_info(
+ struct ieee80211_ht_addt_info *ht_add_info_ie,
+ struct ieee80211_ht_bss_info *bss_info);
+void ieee80211_sta_stop_rx_ba_session(struct net_device *dev, u8 *da,
+ u16 tid, u16 initiator, u16 reason);
+void sta_rx_agg_session_timer_expired(unsigned long data);
/* ieee80211_iface.c */
int ieee80211_if_add(struct net_device *dev, const char *name,
struct net_device **new_dev, int type);
@@ -793,8 +816,8 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb, struct net_device *dev);
extern void *mac80211_wiphy_privid; /* for wiphy privid */
extern const unsigned char rfc1042_header[6];
extern const unsigned char bridge_tunnel_header[6];
-u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len);
-int ieee80211_is_eapol(const struct sk_buff *skb);
+u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
+ enum ieee80211_if_types type);
int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
int rate, int erp, int short_preamble);
void mac80211_ev_michael_mic_failure(struct net_device *dev, int keyidx,
diff --git a/net/mac80211/ieee80211_iface.c b/net/mac80211/ieee80211_iface.c
index 43e505d29452..92f1eb2da311 100644
--- a/net/mac80211/ieee80211_iface.c
+++ b/net/mac80211/ieee80211_iface.c
@@ -22,7 +22,6 @@ void ieee80211_if_sdata_init(struct ieee80211_sub_if_data *sdata)
/* Default values for sub-interface parameters */
sdata->drop_unencrypted = 0;
- sdata->eapol = 1;
for (i = 0; i < IEEE80211_FRAGMENT_MAX; i++)
skb_queue_head_init(&sdata->fragments[i].skb_list);
@@ -48,7 +47,7 @@ int ieee80211_if_add(struct net_device *dev, const char *name,
int ret;
ASSERT_RTNL();
- ndev = alloc_netdev(sizeof(struct ieee80211_sub_if_data),
+ ndev = alloc_netdev(sizeof(*sdata) + local->hw.vif_data_size,
name, ieee80211_if_setup);
if (!ndev)
return -ENOMEM;
@@ -67,7 +66,7 @@ int ieee80211_if_add(struct net_device *dev, const char *name,
sdata = IEEE80211_DEV_TO_SUB_IF(ndev);
ndev->ieee80211_ptr = &sdata->wdev;
sdata->wdev.wiphy = local->hw.wiphy;
- sdata->type = IEEE80211_IF_TYPE_AP;
+ sdata->vif.type = IEEE80211_IF_TYPE_AP;
sdata->dev = ndev;
sdata->local = local;
ieee80211_if_sdata_init(sdata);
@@ -99,7 +98,7 @@ fail:
void ieee80211_if_set_type(struct net_device *dev, int type)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- int oldtype = sdata->type;
+ int oldtype = sdata->vif.type;
/*
* We need to call this function on the master interface
@@ -117,7 +116,7 @@ void ieee80211_if_set_type(struct net_device *dev, int type)
/* most have no BSS pointer */
sdata->bss = NULL;
- sdata->type = type;
+ sdata->vif.type = type;
switch (type) {
case IEEE80211_IF_TYPE_WDS:
@@ -127,7 +126,6 @@ void ieee80211_if_set_type(struct net_device *dev, int type)
sdata->u.vlan.ap = NULL;
break;
case IEEE80211_IF_TYPE_AP:
- sdata->u.ap.dtim_period = 2;
sdata->u.ap.force_unicast_rateidx = -1;
sdata->u.ap.max_ratectrl_rateidx = -1;
skb_queue_head_init(&sdata->u.ap.ps_bc_buf);
@@ -182,7 +180,7 @@ void ieee80211_if_reinit(struct net_device *dev)
ieee80211_if_sdata_deinit(sdata);
- switch (sdata->type) {
+ switch (sdata->vif.type) {
case IEEE80211_IF_TYPE_INVALID:
/* cannot happen */
WARN_ON(1);
@@ -208,8 +206,7 @@ void ieee80211_if_reinit(struct net_device *dev)
}
}
- kfree(sdata->u.ap.beacon_head);
- kfree(sdata->u.ap.beacon_tail);
+ kfree(sdata->u.ap.beacon);
while ((skb = skb_dequeue(&sdata->u.ap.ps_bc_buf))) {
local->total_ps_buffered--;
@@ -280,7 +277,7 @@ int ieee80211_if_remove(struct net_device *dev, const char *name, int id)
ASSERT_RTNL();
list_for_each_entry_safe(sdata, n, &local->interfaces, list) {
- if ((sdata->type == id || id == -1) &&
+ if ((sdata->vif.type == id || id == -1) &&
strcmp(name, sdata->dev->name) == 0 &&
sdata->dev != local->mdev) {
list_del_rcu(&sdata->list);
diff --git a/net/mac80211/ieee80211_ioctl.c b/net/mac80211/ieee80211_ioctl.c
index 308bbe4a1333..5024d3733834 100644
--- a/net/mac80211/ieee80211_ioctl.c
+++ b/net/mac80211/ieee80211_ioctl.c
@@ -21,6 +21,7 @@
#include <net/mac80211.h>
#include "ieee80211_i.h"
+#include "ieee80211_led.h"
#include "ieee80211_rate.h"
#include "wpa.h"
#include "aes_ccm.h"
@@ -111,8 +112,8 @@ static int ieee80211_ioctl_siwgenie(struct net_device *dev,
if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME)
return -EOPNOTSUPP;
- if (sdata->type == IEEE80211_IF_TYPE_STA ||
- sdata->type == IEEE80211_IF_TYPE_IBSS) {
+ if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
+ sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
int ret = ieee80211_sta_set_extra_ie(dev, extra, data->length);
if (ret)
return ret;
@@ -218,6 +219,8 @@ static int ieee80211_ioctl_giwrange(struct net_device *dev,
IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
+ range->scan_capa |= IW_SCAN_CAPA_ESSID;
+
return 0;
}
@@ -229,7 +232,7 @@ static int ieee80211_ioctl_siwmode(struct net_device *dev,
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
int type;
- if (sdata->type == IEEE80211_IF_TYPE_VLAN)
+ if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN)
return -EOPNOTSUPP;
switch (*mode) {
@@ -246,7 +249,7 @@ static int ieee80211_ioctl_siwmode(struct net_device *dev,
return -EINVAL;
}
- if (type == sdata->type)
+ if (type == sdata->vif.type)
return 0;
if (netif_running(dev))
return -EBUSY;
@@ -265,7 +268,7 @@ static int ieee80211_ioctl_giwmode(struct net_device *dev,
struct ieee80211_sub_if_data *sdata;
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- switch (sdata->type) {
+ switch (sdata->vif.type) {
case IEEE80211_IF_TYPE_AP:
*mode = IW_MODE_MASTER;
break;
@@ -315,7 +318,7 @@ int ieee80211_set_channel(struct ieee80211_local *local, int channel, int freq)
}
if (set) {
- if (local->sta_scanning)
+ if (local->sta_sw_scanning)
ret = 0;
else
ret = ieee80211_hw_config(local);
@@ -333,13 +336,13 @@ static int ieee80211_ioctl_siwfreq(struct net_device *dev,
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->type == IEEE80211_IF_TYPE_STA)
+ if (sdata->vif.type == IEEE80211_IF_TYPE_STA)
sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_CHANNEL_SEL;
/* freq->e == 0: freq->m = channel; otherwise freq = m * 10^e */
if (freq->e == 0) {
if (freq->m < 0) {
- if (sdata->type == IEEE80211_IF_TYPE_STA)
+ if (sdata->vif.type == IEEE80211_IF_TYPE_STA)
sdata->u.sta.flags |=
IEEE80211_STA_AUTO_CHANNEL_SEL;
return 0;
@@ -385,8 +388,8 @@ static int ieee80211_ioctl_siwessid(struct net_device *dev,
len--;
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->type == IEEE80211_IF_TYPE_STA ||
- sdata->type == IEEE80211_IF_TYPE_IBSS) {
+ if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
+ sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
int ret;
if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME) {
if (len > IEEE80211_MAX_SSID_LEN)
@@ -406,7 +409,7 @@ static int ieee80211_ioctl_siwessid(struct net_device *dev,
return 0;
}
- if (sdata->type == IEEE80211_IF_TYPE_AP) {
+ if (sdata->vif.type == IEEE80211_IF_TYPE_AP) {
memcpy(sdata->u.ap.ssid, ssid, len);
memset(sdata->u.ap.ssid + len, 0,
IEEE80211_MAX_SSID_LEN - len);
@@ -425,8 +428,8 @@ static int ieee80211_ioctl_giwessid(struct net_device *dev,
struct ieee80211_sub_if_data *sdata;
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->type == IEEE80211_IF_TYPE_STA ||
- sdata->type == IEEE80211_IF_TYPE_IBSS) {
+ if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
+ sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
int res = ieee80211_sta_get_ssid(dev, ssid, &len);
if (res == 0) {
data->length = len;
@@ -436,7 +439,7 @@ static int ieee80211_ioctl_giwessid(struct net_device *dev,
return res;
}
- if (sdata->type == IEEE80211_IF_TYPE_AP) {
+ if (sdata->vif.type == IEEE80211_IF_TYPE_AP) {
len = sdata->u.ap.ssid_len;
if (len > IW_ESSID_MAX_SIZE)
len = IW_ESSID_MAX_SIZE;
@@ -456,8 +459,8 @@ static int ieee80211_ioctl_siwap(struct net_device *dev,
struct ieee80211_sub_if_data *sdata;
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->type == IEEE80211_IF_TYPE_STA ||
- sdata->type == IEEE80211_IF_TYPE_IBSS) {
+ if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
+ sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
int ret;
if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME) {
memcpy(sdata->u.sta.bssid, (u8 *) &ap_addr->sa_data,
@@ -476,7 +479,7 @@ static int ieee80211_ioctl_siwap(struct net_device *dev,
return ret;
ieee80211_sta_req_auth(dev, &sdata->u.sta);
return 0;
- } else if (sdata->type == IEEE80211_IF_TYPE_WDS) {
+ } else if (sdata->vif.type == IEEE80211_IF_TYPE_WDS) {
if (memcmp(sdata->u.wds.remote_addr, (u8 *) &ap_addr->sa_data,
ETH_ALEN) == 0)
return 0;
@@ -494,12 +497,12 @@ static int ieee80211_ioctl_giwap(struct net_device *dev,
struct ieee80211_sub_if_data *sdata;
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->type == IEEE80211_IF_TYPE_STA ||
- sdata->type == IEEE80211_IF_TYPE_IBSS) {
+ if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
+ sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
ap_addr->sa_family = ARPHRD_ETHER;
memcpy(&ap_addr->sa_data, sdata->u.sta.bssid, ETH_ALEN);
return 0;
- } else if (sdata->type == IEEE80211_IF_TYPE_WDS) {
+ } else if (sdata->vif.type == IEEE80211_IF_TYPE_WDS) {
ap_addr->sa_family = ARPHRD_ETHER;
memcpy(&ap_addr->sa_data, sdata->u.wds.remote_addr, ETH_ALEN);
return 0;
@@ -513,7 +516,6 @@ static int ieee80211_ioctl_siwscan(struct net_device *dev,
struct iw_request_info *info,
union iwreq_data *wrqu, char *extra)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct iw_scan_req *req = NULL;
u8 *ssid = NULL;
@@ -522,23 +524,10 @@ static int ieee80211_ioctl_siwscan(struct net_device *dev,
if (!netif_running(dev))
return -ENETDOWN;
- switch (sdata->type) {
- case IEEE80211_IF_TYPE_STA:
- case IEEE80211_IF_TYPE_IBSS:
- if (local->scan_flags & IEEE80211_SCAN_MATCH_SSID) {
- ssid = sdata->u.sta.ssid;
- ssid_len = sdata->u.sta.ssid_len;
- }
- break;
- case IEEE80211_IF_TYPE_AP:
- if (local->scan_flags & IEEE80211_SCAN_MATCH_SSID) {
- ssid = sdata->u.ap.ssid;
- ssid_len = sdata->u.ap.ssid_len;
- }
- break;
- default:
+ if (sdata->vif.type != IEEE80211_IF_TYPE_STA &&
+ sdata->vif.type != IEEE80211_IF_TYPE_IBSS &&
+ sdata->vif.type != IEEE80211_IF_TYPE_AP)
return -EOPNOTSUPP;
- }
/* if SSID was specified explicitly then use that */
if (wrqu->data.length == sizeof(struct iw_scan_req) &&
@@ -558,8 +547,10 @@ static int ieee80211_ioctl_giwscan(struct net_device *dev,
{
int res;
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- if (local->sta_scanning)
+
+ if (local->sta_sw_scanning || local->sta_hw_scanning)
return -EAGAIN;
+
res = ieee80211_sta_scan_results(dev, extra, data->length);
if (res >= 0) {
data->length = res;
@@ -614,7 +605,7 @@ static int ieee80211_ioctl_giwrate(struct net_device *dev,
struct ieee80211_sub_if_data *sdata;
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->type == IEEE80211_IF_TYPE_STA)
+ if (sdata->vif.type == IEEE80211_IF_TYPE_STA)
sta = sta_info_get(local, sdata->u.sta.bssid);
else
return -EOPNOTSUPP;
@@ -634,22 +625,36 @@ static int ieee80211_ioctl_siwtxpower(struct net_device *dev,
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
bool need_reconfig = 0;
+ u8 new_power_level;
if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
return -EINVAL;
if (data->txpower.flags & IW_TXPOW_RANGE)
return -EINVAL;
- if (!data->txpower.fixed)
- return -EINVAL;
- if (local->hw.conf.power_level != data->txpower.value) {
- local->hw.conf.power_level = data->txpower.value;
+ if (data->txpower.fixed) {
+ new_power_level = data->txpower.value;
+ } else {
+ /* Automatic power level. Get the px power from the current
+ * channel. */
+ struct ieee80211_channel* chan = local->oper_channel;
+ if (!chan)
+ return -EINVAL;
+
+ new_power_level = chan->power_level;
+ }
+
+ if (local->hw.conf.power_level != new_power_level) {
+ local->hw.conf.power_level = new_power_level;
need_reconfig = 1;
}
+
if (local->hw.conf.radio_enabled != !(data->txpower.disabled)) {
local->hw.conf.radio_enabled = !(data->txpower.disabled);
need_reconfig = 1;
+ ieee80211_led_radio(local, local->hw.conf.radio_enabled);
}
+
if (need_reconfig) {
ieee80211_hw_config(local);
/* The return value of hw_config is not of big interest here,
@@ -814,8 +819,8 @@ static int ieee80211_ioctl_siwmlme(struct net_device *dev,
struct iw_mlme *mlme = (struct iw_mlme *) extra;
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->type != IEEE80211_IF_TYPE_STA &&
- sdata->type != IEEE80211_IF_TYPE_IBSS)
+ if (sdata->vif.type != IEEE80211_IF_TYPE_STA &&
+ sdata->vif.type != IEEE80211_IF_TYPE_IBSS)
return -EINVAL;
switch (mlme->cmd) {
@@ -928,8 +933,11 @@ static int ieee80211_ioctl_siwauth(struct net_device *dev,
case IW_AUTH_RX_UNENCRYPTED_EAPOL:
case IW_AUTH_KEY_MGMT:
break;
+ case IW_AUTH_DROP_UNENCRYPTED:
+ sdata->drop_unencrypted = !!data->value;
+ break;
case IW_AUTH_PRIVACY_INVOKED:
- if (sdata->type != IEEE80211_IF_TYPE_STA)
+ if (sdata->vif.type != IEEE80211_IF_TYPE_STA)
ret = -EINVAL;
else {
sdata->u.sta.flags &= ~IEEE80211_STA_PRIVACY_INVOKED;
@@ -944,8 +952,8 @@ static int ieee80211_ioctl_siwauth(struct net_device *dev,
}
break;
case IW_AUTH_80211_AUTH_ALG:
- if (sdata->type == IEEE80211_IF_TYPE_STA ||
- sdata->type == IEEE80211_IF_TYPE_IBSS)
+ if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
+ sdata->vif.type == IEEE80211_IF_TYPE_IBSS)
sdata->u.sta.auth_algs = data->value;
else
ret = -EOPNOTSUPP;
@@ -965,8 +973,8 @@ static struct iw_statistics *ieee80211_get_wireless_stats(struct net_device *dev
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct sta_info *sta = NULL;
- if (sdata->type == IEEE80211_IF_TYPE_STA ||
- sdata->type == IEEE80211_IF_TYPE_IBSS)
+ if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
+ sdata->vif.type == IEEE80211_IF_TYPE_IBSS)
sta = sta_info_get(local, sdata->u.sta.bssid);
if (!sta) {
wstats->discard.fragment = 0;
@@ -994,8 +1002,8 @@ static int ieee80211_ioctl_giwauth(struct net_device *dev,
switch (data->flags & IW_AUTH_INDEX) {
case IW_AUTH_80211_AUTH_ALG:
- if (sdata->type == IEEE80211_IF_TYPE_STA ||
- sdata->type == IEEE80211_IF_TYPE_IBSS)
+ if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
+ sdata->vif.type == IEEE80211_IF_TYPE_IBSS)
data->value = sdata->u.sta.auth_algs;
else
ret = -EOPNOTSUPP;
diff --git a/net/mac80211/ieee80211_led.c b/net/mac80211/ieee80211_led.c
index 4cf89af9d100..f401484ab6d7 100644
--- a/net/mac80211/ieee80211_led.c
+++ b/net/mac80211/ieee80211_led.c
@@ -43,6 +43,16 @@ void ieee80211_led_assoc(struct ieee80211_local *local, bool associated)
led_trigger_event(local->assoc_led, LED_OFF);
}
+void ieee80211_led_radio(struct ieee80211_local *local, bool enabled)
+{
+ if (unlikely(!local->radio_led))
+ return;
+ if (enabled)
+ led_trigger_event(local->radio_led, LED_FULL);
+ else
+ led_trigger_event(local->radio_led, LED_OFF);
+}
+
void ieee80211_led_init(struct ieee80211_local *local)
{
local->rx_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
@@ -77,10 +87,25 @@ void ieee80211_led_init(struct ieee80211_local *local)
local->assoc_led = NULL;
}
}
+
+ local->radio_led = kzalloc(sizeof(struct led_trigger), GFP_KERNEL);
+ if (local->radio_led) {
+ snprintf(local->radio_led_name, sizeof(local->radio_led_name),
+ "%sradio", wiphy_name(local->hw.wiphy));
+ local->radio_led->name = local->radio_led_name;
+ if (led_trigger_register(local->radio_led)) {
+ kfree(local->radio_led);
+ local->radio_led = NULL;
+ }
+ }
}
void ieee80211_led_exit(struct ieee80211_local *local)
{
+ if (local->radio_led) {
+ led_trigger_unregister(local->radio_led);
+ kfree(local->radio_led);
+ }
if (local->assoc_led) {
led_trigger_unregister(local->assoc_led);
kfree(local->assoc_led);
@@ -95,6 +120,16 @@ void ieee80211_led_exit(struct ieee80211_local *local)
}
}
+char *__ieee80211_get_radio_led_name(struct ieee80211_hw *hw)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+
+ if (local->radio_led)
+ return local->radio_led_name;
+ return NULL;
+}
+EXPORT_SYMBOL(__ieee80211_get_radio_led_name);
+
char *__ieee80211_get_assoc_led_name(struct ieee80211_hw *hw)
{
struct ieee80211_local *local = hw_to_local(hw);
diff --git a/net/mac80211/ieee80211_led.h b/net/mac80211/ieee80211_led.h
index 0feb22619835..77b1e1ba6039 100644
--- a/net/mac80211/ieee80211_led.h
+++ b/net/mac80211/ieee80211_led.h
@@ -16,6 +16,8 @@ extern void ieee80211_led_rx(struct ieee80211_local *local);
extern void ieee80211_led_tx(struct ieee80211_local *local, int q);
extern void ieee80211_led_assoc(struct ieee80211_local *local,
bool associated);
+extern void ieee80211_led_radio(struct ieee80211_local *local,
+ bool enabled);
extern void ieee80211_led_init(struct ieee80211_local *local);
extern void ieee80211_led_exit(struct ieee80211_local *local);
#else
@@ -29,6 +31,10 @@ static inline void ieee80211_led_assoc(struct ieee80211_local *local,
bool associated)
{
}
+static inline void ieee80211_led_radio(struct ieee80211_local *local,
+ bool enabled)
+{
+}
static inline void ieee80211_led_init(struct ieee80211_local *local)
{
}
diff --git a/net/mac80211/ieee80211_rate.c b/net/mac80211/ieee80211_rate.c
index c3f278393741..b957e67c5fba 100644
--- a/net/mac80211/ieee80211_rate.c
+++ b/net/mac80211/ieee80211_rate.c
@@ -21,6 +21,11 @@ struct rate_control_alg {
static LIST_HEAD(rate_ctrl_algs);
static DEFINE_MUTEX(rate_ctrl_mutex);
+static char *ieee80211_default_rc_algo = CONFIG_MAC80211_RC_DEFAULT;
+module_param(ieee80211_default_rc_algo, charp, 0644);
+MODULE_PARM_DESC(ieee80211_default_rc_algo,
+ "Default rate control algorithm for mac80211 to use");
+
int ieee80211_rate_control_register(struct rate_control_ops *ops)
{
struct rate_control_alg *alg;
@@ -89,21 +94,31 @@ ieee80211_try_rate_control_ops_get(const char *name)
return ops;
}
-/* Get the rate control algorithm. If `name' is NULL, get the first
- * available algorithm. */
+/* Get the rate control algorithm. */
static struct rate_control_ops *
ieee80211_rate_control_ops_get(const char *name)
{
struct rate_control_ops *ops;
+ const char *alg_name;
if (!name)
- name = "simple";
+ alg_name = ieee80211_default_rc_algo;
+ else
+ alg_name = name;
- ops = ieee80211_try_rate_control_ops_get(name);
+ ops = ieee80211_try_rate_control_ops_get(alg_name);
if (!ops) {
- request_module("rc80211_%s", name);
- ops = ieee80211_try_rate_control_ops_get(name);
+ request_module("rc80211_%s", alg_name);
+ ops = ieee80211_try_rate_control_ops_get(alg_name);
}
+ if (!ops && name)
+ /* try default if specific alg requested but not found */
+ ops = ieee80211_try_rate_control_ops_get(ieee80211_default_rc_algo);
+
+ /* try built-in one if specific alg requested but not found */
+ if (!ops && strlen(CONFIG_MAC80211_RC_DEFAULT))
+ ops = ieee80211_try_rate_control_ops_get(CONFIG_MAC80211_RC_DEFAULT);
+
return ops;
}
@@ -147,6 +162,37 @@ static void rate_control_release(struct kref *kref)
kfree(ctrl_ref);
}
+void rate_control_get_rate(struct net_device *dev,
+ struct ieee80211_hw_mode *mode, struct sk_buff *skb,
+ struct rate_selection *sel)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct rate_control_ref *ref = local->rate_ctrl;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ struct sta_info *sta = sta_info_get(local, hdr->addr1);
+ int i;
+
+ memset(sel, 0, sizeof(struct rate_selection));
+
+ ref->ops->get_rate(ref->priv, dev, mode, skb, sel);
+
+ /* Select a non-ERP backup rate. */
+ if (!sel->nonerp) {
+ for (i = 0; i < mode->num_rates - 1; i++) {
+ struct ieee80211_rate *rate = &mode->rates[i];
+ if (sel->rate->rate < rate->rate)
+ break;
+
+ if (rate_supported(sta, mode, i) &&
+ !(rate->flags & IEEE80211_RATE_ERP))
+ sel->nonerp = rate;
+ }
+ }
+
+ if (sta)
+ sta_info_put(sta);
+}
+
struct rate_control_ref *rate_control_get(struct rate_control_ref *ref)
{
kref_get(&ref->kref);
@@ -197,3 +243,4 @@ void rate_control_deinitialize(struct ieee80211_local *local)
local->rate_ctrl = NULL;
rate_control_put(ref);
}
+
diff --git a/net/mac80211/ieee80211_rate.h b/net/mac80211/ieee80211_rate.h
index 23688139ffb3..73f19e8aa51c 100644
--- a/net/mac80211/ieee80211_rate.h
+++ b/net/mac80211/ieee80211_rate.h
@@ -18,31 +18,24 @@
#include "ieee80211_i.h"
#include "sta_info.h"
-#define RATE_CONTROL_NUM_DOWN 20
-#define RATE_CONTROL_NUM_UP 15
-
-
-struct rate_control_extra {
- /* values from rate_control_get_rate() to the caller: */
- struct ieee80211_rate *probe; /* probe with this rate, or NULL for no
- * probing */
+struct rate_selection {
+ /* Selected transmission rate */
+ struct ieee80211_rate *rate;
+ /* Non-ERP rate to use if mac80211 decides it cannot use an ERP rate */
struct ieee80211_rate *nonerp;
-
- /* parameters from the caller to rate_control_get_rate(): */
- struct ieee80211_hw_mode *mode;
- u16 ethertype;
+ /* probe with this rate, or NULL for no probing */
+ struct ieee80211_rate *probe;
};
-
struct rate_control_ops {
struct module *module;
const char *name;
void (*tx_status)(void *priv, struct net_device *dev,
struct sk_buff *skb,
struct ieee80211_tx_status *status);
- struct ieee80211_rate *(*get_rate)(void *priv, struct net_device *dev,
- struct sk_buff *skb,
- struct rate_control_extra *extra);
+ void (*get_rate)(void *priv, struct net_device *dev,
+ struct ieee80211_hw_mode *mode, struct sk_buff *skb,
+ struct rate_selection *sel);
void (*rate_init)(void *priv, void *priv_sta,
struct ieee80211_local *local, struct sta_info *sta);
void (*clear)(void *priv);
@@ -65,9 +58,6 @@ struct rate_control_ref {
struct kref kref;
};
-/* default 'simple' algorithm */
-extern struct rate_control_ops mac80211_rcsimple;
-
int ieee80211_rate_control_register(struct rate_control_ops *ops);
void ieee80211_rate_control_unregister(struct rate_control_ops *ops);
@@ -75,25 +65,20 @@ void ieee80211_rate_control_unregister(struct rate_control_ops *ops);
* first available algorithm. */
struct rate_control_ref *rate_control_alloc(const char *name,
struct ieee80211_local *local);
+void rate_control_get_rate(struct net_device *dev,
+ struct ieee80211_hw_mode *mode, struct sk_buff *skb,
+ struct rate_selection *sel);
struct rate_control_ref *rate_control_get(struct rate_control_ref *ref);
void rate_control_put(struct rate_control_ref *ref);
-static inline void rate_control_tx_status(struct ieee80211_local *local,
- struct net_device *dev,
+static inline void rate_control_tx_status(struct net_device *dev,
struct sk_buff *skb,
struct ieee80211_tx_status *status)
{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct rate_control_ref *ref = local->rate_ctrl;
- ref->ops->tx_status(ref->priv, dev, skb, status);
-}
-
-static inline struct ieee80211_rate *
-rate_control_get_rate(struct ieee80211_local *local, struct net_device *dev,
- struct sk_buff *skb, struct rate_control_extra *extra)
-{
- struct rate_control_ref *ref = local->rate_ctrl;
- return ref->ops->get_rate(ref->priv, dev, skb, extra);
+ ref->ops->tx_status(ref->priv, dev, skb, status);
}
@@ -142,10 +127,73 @@ static inline void rate_control_remove_sta_debugfs(struct sta_info *sta)
#endif
}
+static inline int
+rate_supported(struct sta_info *sta, struct ieee80211_hw_mode *mode, int index)
+{
+ return (sta == NULL || sta->supp_rates & BIT(index)) &&
+ (mode->rates[index].flags & IEEE80211_RATE_SUPPORTED);
+}
+
+static inline int
+rate_lowest_index(struct ieee80211_local *local, struct ieee80211_hw_mode *mode,
+ struct sta_info *sta)
+{
+ int i;
+
+ for (i = 0; i < mode->num_rates; i++) {
+ if (rate_supported(sta, mode, i))
+ return i;
+ }
+
+ /* warn when we cannot find a rate. */
+ WARN_ON(1);
+
+ return 0;
+}
+
+static inline struct ieee80211_rate *
+rate_lowest(struct ieee80211_local *local, struct ieee80211_hw_mode *mode,
+ struct sta_info *sta)
+{
+ return &mode->rates[rate_lowest_index(local, mode, sta)];
+}
+
/* functions for rate control related to a device */
int ieee80211_init_rate_ctrl_alg(struct ieee80211_local *local,
const char *name);
void rate_control_deinitialize(struct ieee80211_local *local);
+
+/* Rate control algorithms */
+#if defined(RC80211_SIMPLE_COMPILE) || \
+ (defined(CONFIG_MAC80211_RC_SIMPLE) && \
+ !defined(CONFIG_MAC80211_RC_SIMPLE_MODULE))
+extern int rc80211_simple_init(void);
+extern void rc80211_simple_exit(void);
+#else
+static inline int rc80211_simple_init(void)
+{
+ return 0;
+}
+static inline void rc80211_simple_exit(void)
+{
+}
+#endif
+
+#if defined(RC80211_PID_COMPILE) || \
+ (defined(CONFIG_MAC80211_RC_PID) && \
+ !defined(CONFIG_MAC80211_RC_PID_MODULE))
+extern int rc80211_pid_init(void);
+extern void rc80211_pid_exit(void);
+#else
+static inline int rc80211_pid_init(void)
+{
+ return 0;
+}
+static inline void rc80211_pid_exit(void)
+{
+}
+#endif
+
#endif /* IEEE80211_RATE_H */
diff --git a/net/mac80211/ieee80211_sta.c b/net/mac80211/ieee80211_sta.c
index bee8080f2249..2019b4f0528d 100644
--- a/net/mac80211/ieee80211_sta.c
+++ b/net/mac80211/ieee80211_sta.c
@@ -57,6 +57,20 @@
#define ERP_INFO_USE_PROTECTION BIT(1)
+/* mgmt header + 1 byte action code */
+#define IEEE80211_MIN_ACTION_SIZE (24 + 1)
+
+#define IEEE80211_ADDBA_PARAM_POLICY_MASK 0x0002
+#define IEEE80211_ADDBA_PARAM_TID_MASK 0x003C
+#define IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK 0xFFA0
+#define IEEE80211_DELBA_PARAM_TID_MASK 0xF000
+#define IEEE80211_DELBA_PARAM_INITIATOR_MASK 0x0800
+
+/* next values represent the buffer size for A-MPDU frame.
+ * According to IEEE802.11n spec size varies from 8K to 64K (in powers of 2) */
+#define IEEE80211_MIN_AMPDU_BUF 0x8
+#define IEEE80211_MAX_AMPDU_BUF 0x40
+
static void ieee80211_send_probe_req(struct net_device *dev, u8 *dst,
u8 *ssid, size_t ssid_len);
static struct ieee80211_sta_bss *
@@ -90,7 +104,8 @@ struct ieee802_11_elems {
u8 *ext_supp_rates;
u8 *wmm_info;
u8 *wmm_param;
-
+ u8 *ht_cap_elem;
+ u8 *ht_info_elem;
/* length of them, respectively */
u8 ssid_len;
u8 supp_rates_len;
@@ -106,6 +121,8 @@ struct ieee802_11_elems {
u8 ext_supp_rates_len;
u8 wmm_info_len;
u8 wmm_param_len;
+ u8 ht_cap_elem_len;
+ u8 ht_info_elem_len;
};
static void ieee802_11_parse_elems(u8 *start, size_t len,
@@ -190,6 +207,14 @@ static void ieee802_11_parse_elems(u8 *start, size_t len,
elems->ext_supp_rates = pos;
elems->ext_supp_rates_len = elen;
break;
+ case WLAN_EID_HT_CAPABILITY:
+ elems->ht_cap_elem = pos;
+ elems->ht_cap_elem_len = elen;
+ break;
+ case WLAN_EID_HT_EXTRA_INFO:
+ elems->ht_info_elem = pos;
+ elems->ht_info_elem_len = elen;
+ break;
default:
break;
}
@@ -288,50 +313,89 @@ static void ieee80211_sta_wmm_params(struct net_device *dev,
}
-static void ieee80211_handle_erp_ie(struct net_device *dev, u8 erp_value)
+static u32 ieee80211_handle_erp_ie(struct ieee80211_sub_if_data *sdata,
+ u8 erp_value)
{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct ieee80211_bss_conf *bss_conf = &sdata->bss_conf;
struct ieee80211_if_sta *ifsta = &sdata->u.sta;
- int use_protection = (erp_value & WLAN_ERP_USE_PROTECTION) != 0;
- int preamble_mode = (erp_value & WLAN_ERP_BARKER_PREAMBLE) != 0;
- u8 changes = 0;
+ bool use_protection = (erp_value & WLAN_ERP_USE_PROTECTION) != 0;
+ bool preamble_mode = (erp_value & WLAN_ERP_BARKER_PREAMBLE) != 0;
DECLARE_MAC_BUF(mac);
+ u32 changed = 0;
- if (use_protection != !!(sdata->flags & IEEE80211_SDATA_USE_PROTECTION)) {
+ if (use_protection != bss_conf->use_cts_prot) {
if (net_ratelimit()) {
printk(KERN_DEBUG "%s: CTS protection %s (BSSID="
"%s)\n",
- dev->name,
+ sdata->dev->name,
use_protection ? "enabled" : "disabled",
print_mac(mac, ifsta->bssid));
}
- if (use_protection)
- sdata->flags |= IEEE80211_SDATA_USE_PROTECTION;
- else
- sdata->flags &= ~IEEE80211_SDATA_USE_PROTECTION;
- changes |= IEEE80211_ERP_CHANGE_PROTECTION;
+ bss_conf->use_cts_prot = use_protection;
+ changed |= BSS_CHANGED_ERP_CTS_PROT;
}
- if (preamble_mode != !(sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE)) {
+ if (preamble_mode != bss_conf->use_short_preamble) {
if (net_ratelimit()) {
printk(KERN_DEBUG "%s: switched to %s barker preamble"
" (BSSID=%s)\n",
- dev->name,
+ sdata->dev->name,
(preamble_mode == WLAN_ERP_PREAMBLE_SHORT) ?
"short" : "long",
print_mac(mac, ifsta->bssid));
}
- if (preamble_mode)
- sdata->flags &= ~IEEE80211_SDATA_SHORT_PREAMBLE;
- else
- sdata->flags |= IEEE80211_SDATA_SHORT_PREAMBLE;
- changes |= IEEE80211_ERP_CHANGE_PREAMBLE;
+ bss_conf->use_short_preamble = preamble_mode;
+ changed |= BSS_CHANGED_ERP_PREAMBLE;
}
- if (changes)
- ieee80211_erp_info_change_notify(dev, changes);
+ return changed;
}
+int ieee80211_ht_cap_ie_to_ht_info(struct ieee80211_ht_cap *ht_cap_ie,
+ struct ieee80211_ht_info *ht_info)
+{
+
+ if (ht_info == NULL)
+ return -EINVAL;
+
+ memset(ht_info, 0, sizeof(*ht_info));
+
+ if (ht_cap_ie) {
+ u8 ampdu_info = ht_cap_ie->ampdu_params_info;
+
+ ht_info->ht_supported = 1;
+ ht_info->cap = le16_to_cpu(ht_cap_ie->cap_info);
+ ht_info->ampdu_factor =
+ ampdu_info & IEEE80211_HT_CAP_AMPDU_FACTOR;
+ ht_info->ampdu_density =
+ (ampdu_info & IEEE80211_HT_CAP_AMPDU_DENSITY) >> 2;
+ memcpy(ht_info->supp_mcs_set, ht_cap_ie->supp_mcs_set, 16);
+ } else
+ ht_info->ht_supported = 0;
+
+ return 0;
+}
+
+int ieee80211_ht_addt_info_ie_to_ht_bss_info(
+ struct ieee80211_ht_addt_info *ht_add_info_ie,
+ struct ieee80211_ht_bss_info *bss_info)
+{
+ if (bss_info == NULL)
+ return -EINVAL;
+
+ memset(bss_info, 0, sizeof(*bss_info));
+
+ if (ht_add_info_ie) {
+ u16 op_mode;
+ op_mode = le16_to_cpu(ht_add_info_ie->operation_mode);
+
+ bss_info->primary_channel = ht_add_info_ie->control_chan;
+ bss_info->bss_cap = ht_add_info_ie->ht_param;
+ bss_info->bss_op_mode = (u8)(op_mode & 0xff);
+ }
+
+ return 0;
+}
static void ieee80211_sta_send_associnfo(struct net_device *dev,
struct ieee80211_if_sta *ifsta)
@@ -388,20 +452,17 @@ static void ieee80211_set_associated(struct net_device *dev,
struct ieee80211_if_sta *ifsta,
bool assoc)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct ieee80211_local *local = sdata->local;
union iwreq_data wrqu;
-
- if (!!(ifsta->flags & IEEE80211_STA_ASSOCIATED) == assoc)
- return;
+ u32 changed = BSS_CHANGED_ASSOC;
if (assoc) {
- struct ieee80211_sub_if_data *sdata;
struct ieee80211_sta_bss *bss;
ifsta->flags |= IEEE80211_STA_ASSOCIATED;
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->type != IEEE80211_IF_TYPE_STA)
+ if (sdata->vif.type != IEEE80211_IF_TYPE_STA)
return;
bss = ieee80211_rx_bss_get(dev, ifsta->bssid,
@@ -409,7 +470,8 @@ static void ieee80211_set_associated(struct net_device *dev,
ifsta->ssid, ifsta->ssid_len);
if (bss) {
if (bss->has_erp_value)
- ieee80211_handle_erp_ie(dev, bss->erp_value);
+ changed |= ieee80211_handle_erp_ie(
+ sdata, bss->erp_value);
ieee80211_rx_bss_put(dev, bss);
}
@@ -429,6 +491,8 @@ static void ieee80211_set_associated(struct net_device *dev,
wireless_send_event(dev, SIOCGIWAP, &wrqu, NULL);
ifsta->last_probe = jiffies;
ieee80211_led_assoc(local, assoc);
+
+ ieee80211_bss_info_change_notify(sdata, changed);
}
static void ieee80211_set_disassoc(struct net_device *dev,
@@ -630,6 +694,19 @@ static void ieee80211_send_assoc(struct net_device *dev,
*pos++ = 1; /* WME ver */
*pos++ = 0;
}
+ /* wmm support is a must to HT */
+ if (wmm && mode->ht_info.ht_supported) {
+ __le16 tmp = cpu_to_le16(mode->ht_info.cap);
+ pos = skb_put(skb, sizeof(struct ieee80211_ht_cap)+2);
+ *pos++ = WLAN_EID_HT_CAPABILITY;
+ *pos++ = sizeof(struct ieee80211_ht_cap);
+ memset(pos, 0, sizeof(struct ieee80211_ht_cap));
+ memcpy(pos, &tmp, sizeof(u16));
+ pos += sizeof(u16);
+ *pos++ = (mode->ht_info.ampdu_factor |
+ (mode->ht_info.ampdu_density << 2));
+ memcpy(pos, mode->ht_info.supp_mcs_set, 16);
+ }
kfree(ifsta->assocreq_ies);
ifsta->assocreq_ies_len = (skb->data + skb->len) - ies;
@@ -918,6 +995,320 @@ static void ieee80211_auth_challenge(struct net_device *dev,
elems.challenge_len + 2, 1);
}
+static void ieee80211_send_addba_resp(struct net_device *dev, u8 *da, u16 tid,
+ u8 dialog_token, u16 status, u16 policy,
+ u16 buf_size, u16 timeout)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct sk_buff *skb;
+ struct ieee80211_mgmt *mgmt;
+ u16 capab;
+
+ skb = dev_alloc_skb(sizeof(*mgmt) + local->hw.extra_tx_headroom + 1 +
+ sizeof(mgmt->u.action.u.addba_resp));
+ if (!skb) {
+ printk(KERN_DEBUG "%s: failed to allocate buffer "
+ "for addba resp frame\n", dev->name);
+ return;
+ }
+
+ skb_reserve(skb, local->hw.extra_tx_headroom);
+ mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
+ memset(mgmt, 0, 24);
+ memcpy(mgmt->da, da, ETH_ALEN);
+ memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
+ if (sdata->vif.type == IEEE80211_IF_TYPE_AP)
+ memcpy(mgmt->bssid, dev->dev_addr, ETH_ALEN);
+ else
+ memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
+ mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
+ IEEE80211_STYPE_ACTION);
+
+ skb_put(skb, 1 + sizeof(mgmt->u.action.u.addba_resp));
+ mgmt->u.action.category = WLAN_CATEGORY_BACK;
+ mgmt->u.action.u.addba_resp.action_code = WLAN_ACTION_ADDBA_RESP;
+ mgmt->u.action.u.addba_resp.dialog_token = dialog_token;
+
+ capab = (u16)(policy << 1); /* bit 1 aggregation policy */
+ capab |= (u16)(tid << 2); /* bit 5:2 TID number */
+ capab |= (u16)(buf_size << 6); /* bit 15:6 max size of aggregation */
+
+ mgmt->u.action.u.addba_resp.capab = cpu_to_le16(capab);
+ mgmt->u.action.u.addba_resp.timeout = cpu_to_le16(timeout);
+ mgmt->u.action.u.addba_resp.status = cpu_to_le16(status);
+
+ ieee80211_sta_tx(dev, skb, 0);
+
+ return;
+}
+
+static void ieee80211_sta_process_addba_request(struct net_device *dev,
+ struct ieee80211_mgmt *mgmt,
+ size_t len)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_hw *hw = &local->hw;
+ struct ieee80211_conf *conf = &hw->conf;
+ struct sta_info *sta;
+ struct tid_ampdu_rx *tid_agg_rx;
+ u16 capab, tid, timeout, ba_policy, buf_size, start_seq_num, status;
+ u8 dialog_token;
+ int ret = -EOPNOTSUPP;
+ DECLARE_MAC_BUF(mac);
+
+ sta = sta_info_get(local, mgmt->sa);
+ if (!sta)
+ return;
+
+ /* extract session parameters from addba request frame */
+ dialog_token = mgmt->u.action.u.addba_req.dialog_token;
+ timeout = le16_to_cpu(mgmt->u.action.u.addba_req.timeout);
+ start_seq_num =
+ le16_to_cpu(mgmt->u.action.u.addba_req.start_seq_num) >> 4;
+
+ capab = le16_to_cpu(mgmt->u.action.u.addba_req.capab);
+ ba_policy = (capab & IEEE80211_ADDBA_PARAM_POLICY_MASK) >> 1;
+ tid = (capab & IEEE80211_ADDBA_PARAM_TID_MASK) >> 2;
+ buf_size = (capab & IEEE80211_ADDBA_PARAM_BUF_SIZE_MASK) >> 6;
+
+ status = WLAN_STATUS_REQUEST_DECLINED;
+
+ /* sanity check for incoming parameters:
+ * check if configuration can support the BA policy
+ * and if buffer size does not exceeds max value */
+ if (((ba_policy != 1)
+ && (!(conf->ht_conf.cap & IEEE80211_HT_CAP_DELAY_BA)))
+ || (buf_size > IEEE80211_MAX_AMPDU_BUF)) {
+ status = WLAN_STATUS_INVALID_QOS_PARAM;
+#ifdef CONFIG_MAC80211_HT_DEBUG
+ if (net_ratelimit())
+ printk(KERN_DEBUG "Block Ack Req with bad params from "
+ "%s on tid %u. policy %d, buffer size %d\n",
+ print_mac(mac, mgmt->sa), tid, ba_policy,
+ buf_size);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+ goto end_no_lock;
+ }
+ /* determine default buffer size */
+ if (buf_size == 0) {
+ struct ieee80211_hw_mode *mode = conf->mode;
+ buf_size = IEEE80211_MIN_AMPDU_BUF;
+ buf_size = buf_size << mode->ht_info.ampdu_factor;
+ }
+
+ tid_agg_rx = &sta->ampdu_mlme.tid_rx[tid];
+
+ /* examine state machine */
+ spin_lock_bh(&sta->ampdu_mlme.ampdu_rx);
+
+ if (tid_agg_rx->state != HT_AGG_STATE_IDLE) {
+#ifdef CONFIG_MAC80211_HT_DEBUG
+ if (net_ratelimit())
+ printk(KERN_DEBUG "unexpected Block Ack Req from "
+ "%s on tid %u\n",
+ print_mac(mac, mgmt->sa), tid);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+ goto end;
+ }
+
+ /* prepare reordering buffer */
+ tid_agg_rx->reorder_buf =
+ kmalloc(buf_size * sizeof(struct sk_buf *), GFP_ATOMIC);
+ if ((!tid_agg_rx->reorder_buf) && net_ratelimit()) {
+ printk(KERN_ERR "can not allocate reordering buffer "
+ "to tid %d\n", tid);
+ goto end;
+ }
+ memset(tid_agg_rx->reorder_buf, 0,
+ buf_size * sizeof(struct sk_buf *));
+
+ if (local->ops->ampdu_action)
+ ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_RX_START,
+ sta->addr, tid, start_seq_num);
+#ifdef CONFIG_MAC80211_HT_DEBUG
+ printk(KERN_DEBUG "Rx A-MPDU on tid %d result %d", tid, ret);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+
+ if (ret) {
+ kfree(tid_agg_rx->reorder_buf);
+ goto end;
+ }
+
+ /* change state and send addba resp */
+ tid_agg_rx->state = HT_AGG_STATE_OPERATIONAL;
+ tid_agg_rx->dialog_token = dialog_token;
+ tid_agg_rx->ssn = start_seq_num;
+ tid_agg_rx->head_seq_num = start_seq_num;
+ tid_agg_rx->buf_size = buf_size;
+ tid_agg_rx->timeout = timeout;
+ tid_agg_rx->stored_mpdu_num = 0;
+ status = WLAN_STATUS_SUCCESS;
+end:
+ spin_unlock_bh(&sta->ampdu_mlme.ampdu_rx);
+
+end_no_lock:
+ ieee80211_send_addba_resp(sta->dev, sta->addr, tid, dialog_token,
+ status, 1, buf_size, timeout);
+ sta_info_put(sta);
+}
+
+static void ieee80211_send_delba(struct net_device *dev, const u8 *da, u16 tid,
+ u16 initiator, u16 reason_code)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct ieee80211_if_sta *ifsta = &sdata->u.sta;
+ struct sk_buff *skb;
+ struct ieee80211_mgmt *mgmt;
+ u16 params;
+
+ skb = dev_alloc_skb(sizeof(*mgmt) + local->hw.extra_tx_headroom + 1 +
+ sizeof(mgmt->u.action.u.delba));
+
+ if (!skb) {
+ printk(KERN_ERR "%s: failed to allocate buffer "
+ "for delba frame\n", dev->name);
+ return;
+ }
+
+ skb_reserve(skb, local->hw.extra_tx_headroom);
+ mgmt = (struct ieee80211_mgmt *) skb_put(skb, 24);
+ memset(mgmt, 0, 24);
+ memcpy(mgmt->da, da, ETH_ALEN);
+ memcpy(mgmt->sa, dev->dev_addr, ETH_ALEN);
+ if (sdata->vif.type == IEEE80211_IF_TYPE_AP)
+ memcpy(mgmt->bssid, dev->dev_addr, ETH_ALEN);
+ else
+ memcpy(mgmt->bssid, ifsta->bssid, ETH_ALEN);
+ mgmt->frame_control = IEEE80211_FC(IEEE80211_FTYPE_MGMT,
+ IEEE80211_STYPE_ACTION);
+
+ skb_put(skb, 1 + sizeof(mgmt->u.action.u.delba));
+
+ mgmt->u.action.category = WLAN_CATEGORY_BACK;
+ mgmt->u.action.u.delba.action_code = WLAN_ACTION_DELBA;
+ params = (u16)(initiator << 11); /* bit 11 initiator */
+ params |= (u16)(tid << 12); /* bit 15:12 TID number */
+
+ mgmt->u.action.u.delba.params = cpu_to_le16(params);
+ mgmt->u.action.u.delba.reason_code = cpu_to_le16(reason_code);
+
+ ieee80211_sta_tx(dev, skb, 0);
+}
+
+void ieee80211_sta_stop_rx_ba_session(struct net_device *dev, u8 *ra, u16 tid,
+ u16 initiator, u16 reason)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_hw *hw = &local->hw;
+ struct sta_info *sta;
+ int ret, i;
+
+ sta = sta_info_get(local, ra);
+ if (!sta)
+ return;
+
+ /* check if TID is in operational state */
+ spin_lock_bh(&sta->ampdu_mlme.ampdu_rx);
+ if (sta->ampdu_mlme.tid_rx[tid].state
+ != HT_AGG_STATE_OPERATIONAL) {
+ spin_unlock_bh(&sta->ampdu_mlme.ampdu_rx);
+ sta_info_put(sta);
+ return;
+ }
+ sta->ampdu_mlme.tid_rx[tid].state =
+ HT_AGG_STATE_REQ_STOP_BA_MSK |
+ (initiator << HT_AGG_STATE_INITIATOR_SHIFT);
+ spin_unlock_bh(&sta->ampdu_mlme.ampdu_rx);
+
+ /* stop HW Rx aggregation. ampdu_action existence
+ * already verified in session init so we add the BUG_ON */
+ BUG_ON(!local->ops->ampdu_action);
+
+ ret = local->ops->ampdu_action(hw, IEEE80211_AMPDU_RX_STOP,
+ ra, tid, EINVAL);
+ if (ret)
+ printk(KERN_DEBUG "HW problem - can not stop rx "
+ "aggergation for tid %d\n", tid);
+
+ /* shutdown timer has not expired */
+ if (initiator != WLAN_BACK_TIMER)
+ del_timer_sync(&sta->ampdu_mlme.tid_rx[tid].
+ session_timer);
+
+ /* check if this is a self generated aggregation halt */
+ if (initiator == WLAN_BACK_RECIPIENT || initiator == WLAN_BACK_TIMER)
+ ieee80211_send_delba(dev, ra, tid, 0, reason);
+
+ /* free the reordering buffer */
+ for (i = 0; i < sta->ampdu_mlme.tid_rx[tid].buf_size; i++) {
+ if (sta->ampdu_mlme.tid_rx[tid].reorder_buf[i]) {
+ /* release the reordered frames */
+ dev_kfree_skb(sta->ampdu_mlme.tid_rx[tid].reorder_buf[i]);
+ sta->ampdu_mlme.tid_rx[tid].stored_mpdu_num--;
+ sta->ampdu_mlme.tid_rx[tid].reorder_buf[i] = NULL;
+ }
+ }
+ kfree(sta->ampdu_mlme.tid_rx[tid].reorder_buf);
+
+ sta->ampdu_mlme.tid_rx[tid].state = HT_AGG_STATE_IDLE;
+ sta_info_put(sta);
+}
+
+static void ieee80211_sta_process_delba(struct net_device *dev,
+ struct ieee80211_mgmt *mgmt, size_t len)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct sta_info *sta;
+ u16 tid, params;
+ u16 initiator;
+ DECLARE_MAC_BUF(mac);
+
+ sta = sta_info_get(local, mgmt->sa);
+ if (!sta)
+ return;
+
+ params = le16_to_cpu(mgmt->u.action.u.delba.params);
+ tid = (params & IEEE80211_DELBA_PARAM_TID_MASK) >> 12;
+ initiator = (params & IEEE80211_DELBA_PARAM_INITIATOR_MASK) >> 11;
+
+#ifdef CONFIG_MAC80211_HT_DEBUG
+ if (net_ratelimit())
+ printk(KERN_DEBUG "delba from %s on tid %d reason code %d\n",
+ print_mac(mac, mgmt->sa), tid,
+ mgmt->u.action.u.delba.reason_code);
+#endif /* CONFIG_MAC80211_HT_DEBUG */
+
+ if (initiator == WLAN_BACK_INITIATOR)
+ ieee80211_sta_stop_rx_ba_session(dev, sta->addr, tid,
+ WLAN_BACK_INITIATOR, 0);
+ sta_info_put(sta);
+}
+
+/*
+ * After receiving Block Ack Request (BAR) we activated a
+ * timer after each frame arrives from the originator.
+ * if this timer expires ieee80211_sta_stop_rx_ba_session will be executed.
+ */
+void sta_rx_agg_session_timer_expired(unsigned long data)
+{
+ /* not an elegant detour, but there is no choice as the timer passes
+ * only one argument, and verious sta_info are needed here, so init
+ * flow in sta_info_add gives the TID as data, while the timer_to_id
+ * array gives the sta through container_of */
+ u8 *ptid = (u8 *)data;
+ u8 *timer_to_id = ptid - *ptid;
+ struct sta_info *sta = container_of(timer_to_id, struct sta_info,
+ timer_to_tid[0]);
+
+ printk(KERN_DEBUG "rx session timer expired on tid %d\n", (u16)*ptid);
+ ieee80211_sta_stop_rx_ba_session(sta->dev, sta->addr, (u16)*ptid,
+ WLAN_BACK_TIMER,
+ WLAN_REASON_QSTA_TIMEOUT);
+}
+
static void ieee80211_rx_mgmt_auth(struct net_device *dev,
struct ieee80211_if_sta *ifsta,
@@ -929,7 +1320,7 @@ static void ieee80211_rx_mgmt_auth(struct net_device *dev,
DECLARE_MAC_BUF(mac);
if (ifsta->state != IEEE80211_AUTHENTICATE &&
- sdata->type != IEEE80211_IF_TYPE_IBSS) {
+ sdata->vif.type != IEEE80211_IF_TYPE_IBSS) {
printk(KERN_DEBUG "%s: authentication frame received from "
"%s, but not in authenticate state - ignored\n",
dev->name, print_mac(mac, mgmt->sa));
@@ -943,7 +1334,7 @@ static void ieee80211_rx_mgmt_auth(struct net_device *dev,
return;
}
- if (sdata->type != IEEE80211_IF_TYPE_IBSS &&
+ if (sdata->vif.type != IEEE80211_IF_TYPE_IBSS &&
memcmp(ifsta->bssid, mgmt->sa, ETH_ALEN) != 0) {
printk(KERN_DEBUG "%s: authentication frame received from "
"unknown AP (SA=%s BSSID=%s) - "
@@ -952,7 +1343,7 @@ static void ieee80211_rx_mgmt_auth(struct net_device *dev,
return;
}
- if (sdata->type != IEEE80211_IF_TYPE_IBSS &&
+ if (sdata->vif.type != IEEE80211_IF_TYPE_IBSS &&
memcmp(ifsta->bssid, mgmt->bssid, ETH_ALEN) != 0) {
printk(KERN_DEBUG "%s: authentication frame received from "
"unknown BSSID (SA=%s BSSID=%s) - "
@@ -970,7 +1361,7 @@ static void ieee80211_rx_mgmt_auth(struct net_device *dev,
dev->name, print_mac(mac, mgmt->sa), auth_alg,
auth_transaction, status_code);
- if (sdata->type == IEEE80211_IF_TYPE_IBSS) {
+ if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
/* IEEE 802.11 standard does not require authentication in IBSS
* networks and most implementations do not seem to use it.
* However, try to reply to authentication attempts if someone
@@ -1136,18 +1527,20 @@ static void ieee80211_rx_mgmt_disassoc(struct net_device *dev,
}
-static void ieee80211_rx_mgmt_assoc_resp(struct net_device *dev,
+static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
struct ieee80211_if_sta *ifsta,
struct ieee80211_mgmt *mgmt,
size_t len,
int reassoc)
{
- struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_local *local = sdata->local;
+ struct net_device *dev = sdata->dev;
struct ieee80211_hw_mode *mode;
struct sta_info *sta;
u32 rates;
u16 capab_info, status_code, aid;
struct ieee802_11_elems elems;
+ struct ieee80211_bss_conf *bss_conf = &sdata->bss_conf;
u8 *pos;
int i, j;
DECLARE_MAC_BUF(mac);
@@ -1210,20 +1603,6 @@ static void ieee80211_rx_mgmt_assoc_resp(struct net_device *dev,
return;
}
- /* it probably doesn't, but if the frame includes an ERP value then
- * update our stored copy */
- if (elems.erp_info && elems.erp_info_len >= 1) {
- struct ieee80211_sta_bss *bss
- = ieee80211_rx_bss_get(dev, ifsta->bssid,
- local->hw.conf.channel,
- ifsta->ssid, ifsta->ssid_len);
- if (bss) {
- bss->erp_value = elems.erp_info[0];
- bss->has_erp_value = 1;
- ieee80211_rx_bss_put(dev, bss);
- }
- }
-
printk(KERN_DEBUG "%s: associated\n", dev->name);
ifsta->aid = aid;
ifsta->ap_capab = capab_info;
@@ -1234,6 +1613,8 @@ static void ieee80211_rx_mgmt_assoc_resp(struct net_device *dev,
if (ifsta->assocresp_ies)
memcpy(ifsta->assocresp_ies, pos, ifsta->assocresp_ies_len);
+ /* set AID, ieee80211_set_associated() will tell the driver */
+ bss_conf->aid = aid;
ieee80211_set_associated(dev, ifsta, 1);
/* Add STA entry for the AP */
@@ -1276,6 +1657,19 @@ static void ieee80211_rx_mgmt_assoc_resp(struct net_device *dev,
}
sta->supp_rates = rates;
+ if (elems.ht_cap_elem && elems.ht_info_elem && elems.wmm_param &&
+ local->ops->conf_ht) {
+ struct ieee80211_ht_bss_info bss_info;
+
+ ieee80211_ht_cap_ie_to_ht_info(
+ (struct ieee80211_ht_cap *)
+ elems.ht_cap_elem, &sta->ht_info);
+ ieee80211_ht_addt_info_ie_to_ht_bss_info(
+ (struct ieee80211_ht_addt_info *)
+ elems.ht_info_elem, &bss_info);
+ ieee80211_hw_config_ht(local, 1, &sta->ht_info, &bss_info);
+ }
+
rate_control_rate_init(sta, local);
if (elems.wmm_param && (ifsta->flags & IEEE80211_STA_WMM_ENABLED)) {
@@ -1380,6 +1774,7 @@ static void ieee80211_rx_bss_free(struct ieee80211_sta_bss *bss)
kfree(bss->wpa_ie);
kfree(bss->rsn_ie);
kfree(bss->wmm_ie);
+ kfree(bss->ht_ie);
kfree(bss);
}
@@ -1449,7 +1844,7 @@ static void ieee80211_rx_bss_info(struct net_device *dev,
timestamp = le64_to_cpu(mgmt->u.beacon.timestamp);
- if (sdata->type == IEEE80211_IF_TYPE_IBSS && beacon &&
+ if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS && beacon &&
memcmp(mgmt->bssid, sdata->u.sta.bssid, ETH_ALEN) == 0) {
#ifdef CONFIG_MAC80211_IBSS_DEBUG
static unsigned long last_tsf_debug = 0;
@@ -1474,7 +1869,7 @@ static void ieee80211_rx_bss_info(struct net_device *dev,
ieee802_11_parse_elems(mgmt->u.beacon.variable, len - baselen, &elems);
- if (sdata->type == IEEE80211_IF_TYPE_IBSS && elems.supp_rates &&
+ if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS && elems.supp_rates &&
memcmp(mgmt->bssid, sdata->u.sta.bssid, ETH_ALEN) == 0 &&
(sta = sta_info_get(local, mgmt->sa))) {
struct ieee80211_hw_mode *mode;
@@ -1483,8 +1878,18 @@ static void ieee80211_rx_bss_info(struct net_device *dev,
u32 supp_rates, prev_rates;
int i, j;
- mode = local->sta_scanning ?
+ mode = local->sta_sw_scanning ?
local->scan_hw_mode : local->oper_hw_mode;
+
+ if (local->sta_hw_scanning) {
+ /* search for the correct mode matches the beacon */
+ list_for_each_entry(mode, &local->modes_list, list)
+ if (mode->mode == rx_status->phymode)
+ break;
+
+ if (mode == NULL)
+ mode = local->oper_hw_mode;
+ }
rates = mode->rates;
num_rates = mode->num_rates;
@@ -1627,7 +2032,22 @@ static void ieee80211_rx_bss_info(struct net_device *dev,
bss->wmm_ie = NULL;
bss->wmm_ie_len = 0;
}
-
+ if (elems.ht_cap_elem &&
+ (!bss->ht_ie || bss->ht_ie_len != elems.ht_cap_elem_len ||
+ memcmp(bss->ht_ie, elems.ht_cap_elem, elems.ht_cap_elem_len))) {
+ kfree(bss->ht_ie);
+ bss->ht_ie = kmalloc(elems.ht_cap_elem_len + 2, GFP_ATOMIC);
+ if (bss->ht_ie) {
+ memcpy(bss->ht_ie, elems.ht_cap_elem - 2,
+ elems.ht_cap_elem_len + 2);
+ bss->ht_ie_len = elems.ht_cap_elem_len + 2;
+ } else
+ bss->ht_ie_len = 0;
+ } else if (!elems.ht_cap_elem && bss->ht_ie) {
+ kfree(bss->ht_ie);
+ bss->ht_ie = NULL;
+ bss->ht_ie_len = 0;
+ }
bss->hw_mode = rx_status->phymode;
bss->freq = rx_status->freq;
@@ -1672,11 +2092,14 @@ static void ieee80211_rx_mgmt_beacon(struct net_device *dev,
struct ieee80211_if_sta *ifsta;
size_t baselen;
struct ieee802_11_elems elems;
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_conf *conf = &local->hw.conf;
+ u32 changed = 0;
ieee80211_rx_bss_info(dev, mgmt, len, rx_status, 1);
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->type != IEEE80211_IF_TYPE_STA)
+ if (sdata->vif.type != IEEE80211_IF_TYPE_STA)
return;
ifsta = &sdata->u.sta;
@@ -1692,12 +2115,31 @@ static void ieee80211_rx_mgmt_beacon(struct net_device *dev,
ieee802_11_parse_elems(mgmt->u.beacon.variable, len - baselen, &elems);
if (elems.erp_info && elems.erp_info_len >= 1)
- ieee80211_handle_erp_ie(dev, elems.erp_info[0]);
+ changed |= ieee80211_handle_erp_ie(sdata, elems.erp_info[0]);
+
+ if (elems.ht_cap_elem && elems.ht_info_elem &&
+ elems.wmm_param && local->ops->conf_ht &&
+ conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) {
+ struct ieee80211_ht_bss_info bss_info;
+
+ ieee80211_ht_addt_info_ie_to_ht_bss_info(
+ (struct ieee80211_ht_addt_info *)
+ elems.ht_info_elem, &bss_info);
+ /* check if AP changed bss inforamation */
+ if ((conf->ht_bss_conf.primary_channel !=
+ bss_info.primary_channel) ||
+ (conf->ht_bss_conf.bss_cap != bss_info.bss_cap) ||
+ (conf->ht_bss_conf.bss_op_mode != bss_info.bss_op_mode))
+ ieee80211_hw_config_ht(local, 1, &conf->ht_conf,
+ &bss_info);
+ }
if (elems.wmm_param && (ifsta->flags & IEEE80211_STA_WMM_ENABLED)) {
ieee80211_sta_wmm_params(dev, ifsta, elems.wmm_param,
elems.wmm_param_len);
}
+
+ ieee80211_bss_info_change_notify(sdata, changed);
}
@@ -1719,7 +2161,7 @@ static void ieee80211_rx_mgmt_probe_req(struct net_device *dev,
DECLARE_MAC_BUF(mac3);
#endif
- if (sdata->type != IEEE80211_IF_TYPE_IBSS ||
+ if (sdata->vif.type != IEEE80211_IF_TYPE_IBSS ||
ifsta->state != IEEE80211_IBSS_JOINED ||
len < 24 + 2 || !ifsta->probe_resp)
return;
@@ -1775,6 +2217,40 @@ static void ieee80211_rx_mgmt_probe_req(struct net_device *dev,
ieee80211_sta_tx(dev, skb, 0);
}
+static void ieee80211_rx_mgmt_action(struct net_device *dev,
+ struct ieee80211_if_sta *ifsta,
+ struct ieee80211_mgmt *mgmt,
+ size_t len)
+{
+ if (len < IEEE80211_MIN_ACTION_SIZE)
+ return;
+
+ switch (mgmt->u.action.category) {
+ case WLAN_CATEGORY_BACK:
+ switch (mgmt->u.action.u.addba_req.action_code) {
+ case WLAN_ACTION_ADDBA_REQ:
+ if (len < (IEEE80211_MIN_ACTION_SIZE +
+ sizeof(mgmt->u.action.u.addba_req)))
+ break;
+ ieee80211_sta_process_addba_request(dev, mgmt, len);
+ break;
+ case WLAN_ACTION_DELBA:
+ if (len < (IEEE80211_MIN_ACTION_SIZE +
+ sizeof(mgmt->u.action.u.delba)))
+ break;
+ ieee80211_sta_process_delba(dev, mgmt, len);
+ break;
+ default:
+ if (net_ratelimit())
+ printk(KERN_DEBUG "%s: Rx unknown A-MPDU action\n",
+ dev->name);
+ break;
+ }
+ break;
+ default:
+ break;
+ }
+}
void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb,
struct ieee80211_rx_status *rx_status)
@@ -1804,6 +2280,7 @@ void ieee80211_sta_rx_mgmt(struct net_device *dev, struct sk_buff *skb,
case IEEE80211_STYPE_REASSOC_RESP:
case IEEE80211_STYPE_DEAUTH:
case IEEE80211_STYPE_DISASSOC:
+ case IEEE80211_STYPE_ACTION:
skb_queue_tail(&ifsta->skb_queue, skb);
queue_work(local->hw.workqueue, &ifsta->work);
return;
@@ -1850,10 +2327,10 @@ static void ieee80211_sta_rx_queued_mgmt(struct net_device *dev,
ieee80211_rx_mgmt_auth(dev, ifsta, mgmt, skb->len);
break;
case IEEE80211_STYPE_ASSOC_RESP:
- ieee80211_rx_mgmt_assoc_resp(dev, ifsta, mgmt, skb->len, 0);
+ ieee80211_rx_mgmt_assoc_resp(sdata, ifsta, mgmt, skb->len, 0);
break;
case IEEE80211_STYPE_REASSOC_RESP:
- ieee80211_rx_mgmt_assoc_resp(dev, ifsta, mgmt, skb->len, 1);
+ ieee80211_rx_mgmt_assoc_resp(sdata, ifsta, mgmt, skb->len, 1);
break;
case IEEE80211_STYPE_DEAUTH:
ieee80211_rx_mgmt_deauth(dev, ifsta, mgmt, skb->len);
@@ -1861,37 +2338,48 @@ static void ieee80211_sta_rx_queued_mgmt(struct net_device *dev,
case IEEE80211_STYPE_DISASSOC:
ieee80211_rx_mgmt_disassoc(dev, ifsta, mgmt, skb->len);
break;
+ case IEEE80211_STYPE_ACTION:
+ ieee80211_rx_mgmt_action(dev, ifsta, mgmt, skb->len);
+ break;
}
kfree_skb(skb);
}
-void ieee80211_sta_rx_scan(struct net_device *dev, struct sk_buff *skb,
- struct ieee80211_rx_status *rx_status)
+ieee80211_txrx_result
+ieee80211_sta_rx_scan(struct net_device *dev, struct sk_buff *skb,
+ struct ieee80211_rx_status *rx_status)
{
struct ieee80211_mgmt *mgmt;
u16 fc;
- if (skb->len < 24) {
- dev_kfree_skb(skb);
- return;
- }
+ if (skb->len < 2)
+ return TXRX_DROP;
mgmt = (struct ieee80211_mgmt *) skb->data;
fc = le16_to_cpu(mgmt->frame_control);
+ if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL)
+ return TXRX_CONTINUE;
+
+ if (skb->len < 24)
+ return TXRX_DROP;
+
if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT) {
if ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PROBE_RESP) {
ieee80211_rx_mgmt_probe_resp(dev, mgmt,
skb->len, rx_status);
+ dev_kfree_skb(skb);
+ return TXRX_QUEUED;
} else if ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_BEACON) {
ieee80211_rx_mgmt_beacon(dev, mgmt, skb->len,
rx_status);
+ dev_kfree_skb(skb);
+ return TXRX_QUEUED;
}
}
-
- dev_kfree_skb(skb);
+ return TXRX_CONTINUE;
}
@@ -1981,13 +2469,13 @@ void ieee80211_sta_work(struct work_struct *work)
if (!netif_running(dev))
return;
- if (local->sta_scanning)
+ if (local->sta_sw_scanning || local->sta_hw_scanning)
return;
- if (sdata->type != IEEE80211_IF_TYPE_STA &&
- sdata->type != IEEE80211_IF_TYPE_IBSS) {
+ if (sdata->vif.type != IEEE80211_IF_TYPE_STA &&
+ sdata->vif.type != IEEE80211_IF_TYPE_IBSS) {
printk(KERN_DEBUG "%s: ieee80211_sta_work: non-STA interface "
- "(type=%d)\n", dev->name, sdata->type);
+ "(type=%d)\n", dev->name, sdata->vif.type);
return;
}
ifsta = &sdata->u.sta;
@@ -2082,7 +2570,7 @@ void ieee80211_sta_req_auth(struct net_device *dev,
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->type != IEEE80211_IF_TYPE_STA)
+ if (sdata->vif.type != IEEE80211_IF_TYPE_STA)
return;
if ((ifsta->flags & (IEEE80211_STA_BSSID_SET |
@@ -2204,9 +2692,8 @@ static int ieee80211_sta_join_ibss(struct net_device *dev,
struct sk_buff *skb;
struct ieee80211_mgmt *mgmt;
struct ieee80211_tx_control control;
- struct ieee80211_rate *rate;
struct ieee80211_hw_mode *mode;
- struct rate_control_extra extra;
+ struct rate_selection ratesel;
u8 *pos;
struct ieee80211_sub_if_data *sdata;
@@ -2291,18 +2778,17 @@ static int ieee80211_sta_join_ibss(struct net_device *dev,
}
memset(&control, 0, sizeof(control));
- memset(&extra, 0, sizeof(extra));
- extra.mode = local->oper_hw_mode;
- rate = rate_control_get_rate(local, dev, skb, &extra);
- if (!rate) {
+ rate_control_get_rate(dev, local->oper_hw_mode, skb, &ratesel);
+ if (!ratesel.rate) {
printk(KERN_DEBUG "%s: Failed to determine TX rate "
"for IBSS beacon\n", dev->name);
break;
}
+ control.vif = &sdata->vif;
control.tx_rate =
- ((sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE) &&
- (rate->flags & IEEE80211_RATE_PREAMBLE2)) ?
- rate->val2 : rate->val;
+ (sdata->bss_conf.use_short_preamble &&
+ (ratesel.rate->flags & IEEE80211_RATE_PREAMBLE2)) ?
+ ratesel.rate->val2 : ratesel.rate->val;
control.antenna_sel_tx = local->hw.conf.antenna_sel_tx;
control.power_level = local->hw.conf.power_level;
control.flags |= IEEE80211_TXCTL_NO_ACK;
@@ -2552,7 +3038,7 @@ int ieee80211_sta_set_ssid(struct net_device *dev, char *ssid, size_t len)
ifsta->flags |= IEEE80211_STA_SSID_SET;
else
ifsta->flags &= ~IEEE80211_STA_SSID_SET;
- if (sdata->type == IEEE80211_IF_TYPE_IBSS &&
+ if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS &&
!(ifsta->flags & IEEE80211_STA_BSSID_SET)) {
ifsta->ibss_join_req = jiffies;
ifsta->state = IEEE80211_IBSS_SEARCH;
@@ -2639,9 +3125,15 @@ void ieee80211_scan_completed(struct ieee80211_hw *hw)
union iwreq_data wrqu;
local->last_scan_completed = jiffies;
- wmb();
- local->sta_scanning = 0;
+ memset(&wrqu, 0, sizeof(wrqu));
+ wireless_send_event(dev, SIOCGIWSCAN, &wrqu, NULL);
+
+ if (local->sta_hw_scanning) {
+ local->sta_hw_scanning = 0;
+ goto done;
+ }
+ local->sta_sw_scanning = 0;
if (ieee80211_hw_config(local))
printk(KERN_DEBUG "%s: failed to restore operational "
"channel after scan\n", dev->name);
@@ -2657,9 +3149,6 @@ void ieee80211_scan_completed(struct ieee80211_hw *hw)
netif_tx_unlock_bh(local->mdev);
- memset(&wrqu, 0, sizeof(wrqu));
- wireless_send_event(dev, SIOCGIWSCAN, &wrqu, NULL);
-
rcu_read_lock();
list_for_each_entry_rcu(sdata, &local->interfaces, list) {
@@ -2667,7 +3156,7 @@ void ieee80211_scan_completed(struct ieee80211_hw *hw)
if (sdata->dev == local->mdev)
continue;
- if (sdata->type == IEEE80211_IF_TYPE_STA) {
+ if (sdata->vif.type == IEEE80211_IF_TYPE_STA) {
if (sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED)
ieee80211_send_nullfunc(local, sdata, 0);
ieee80211_sta_timer((unsigned long)sdata);
@@ -2677,8 +3166,9 @@ void ieee80211_scan_completed(struct ieee80211_hw *hw)
}
rcu_read_unlock();
+done:
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (sdata->type == IEEE80211_IF_TYPE_IBSS) {
+ if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
struct ieee80211_if_sta *ifsta = &sdata->u.sta;
if (!(ifsta->flags & IEEE80211_STA_BSSID_SET) ||
(!ifsta->state == IEEE80211_IBSS_JOINED &&
@@ -2699,7 +3189,7 @@ void ieee80211_sta_scan_work(struct work_struct *work)
int skip;
unsigned long next_delay = 0;
- if (!local->sta_scanning)
+ if (!local->sta_sw_scanning)
return;
switch (local->scan_state) {
@@ -2713,7 +3203,7 @@ void ieee80211_sta_scan_work(struct work_struct *work)
skip = !(local->enabled_modes & (1 << mode->mode));
chan = &mode->channels[local->scan_channel_idx];
if (!(chan->flag & IEEE80211_CHAN_W_SCAN) ||
- (sdata->type == IEEE80211_IF_TYPE_IBSS &&
+ (sdata->vif.type == IEEE80211_IF_TYPE_IBSS &&
!(chan->flag & IEEE80211_CHAN_W_IBSS)) ||
(local->hw_modes & local->enabled_modes &
(1 << MODE_IEEE80211G) && mode->mode == MODE_IEEE80211B))
@@ -2762,7 +3252,7 @@ void ieee80211_sta_scan_work(struct work_struct *work)
break;
}
- if (local->sta_scanning)
+ if (local->sta_sw_scanning)
queue_delayed_work(local->hw.workqueue, &local->scan_work,
next_delay);
}
@@ -2794,7 +3284,7 @@ static int ieee80211_sta_start_scan(struct net_device *dev,
* ResultCode: SUCCESS, INVALID_PARAMETERS
*/
- if (local->sta_scanning) {
+ if (local->sta_sw_scanning || local->sta_hw_scanning) {
if (local->scan_dev == dev)
return 0;
return -EBUSY;
@@ -2802,15 +3292,15 @@ static int ieee80211_sta_start_scan(struct net_device *dev,
if (local->ops->hw_scan) {
int rc = local->ops->hw_scan(local_to_hw(local),
- ssid, ssid_len);
+ ssid, ssid_len);
if (!rc) {
- local->sta_scanning = 1;
+ local->sta_hw_scanning = 1;
local->scan_dev = dev;
}
return rc;
}
- local->sta_scanning = 1;
+ local->sta_sw_scanning = 1;
rcu_read_lock();
list_for_each_entry_rcu(sdata, &local->interfaces, list) {
@@ -2821,7 +3311,7 @@ static int ieee80211_sta_start_scan(struct net_device *dev,
continue;
netif_stop_queue(sdata->dev);
- if (sdata->type == IEEE80211_IF_TYPE_STA &&
+ if (sdata->vif.type == IEEE80211_IF_TYPE_STA &&
(sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED))
ieee80211_send_nullfunc(local, sdata, 1);
}
@@ -2862,10 +3352,10 @@ int ieee80211_sta_req_scan(struct net_device *dev, u8 *ssid, size_t ssid_len)
struct ieee80211_if_sta *ifsta = &sdata->u.sta;
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- if (sdata->type != IEEE80211_IF_TYPE_STA)
+ if (sdata->vif.type != IEEE80211_IF_TYPE_STA)
return ieee80211_sta_start_scan(dev, ssid, ssid_len);
- if (local->sta_scanning) {
+ if (local->sta_sw_scanning || local->sta_hw_scanning) {
if (local->scan_dev == dev)
return 0;
return -EBUSY;
@@ -2894,15 +3384,6 @@ ieee80211_sta_scan_result(struct net_device *dev,
if (!(local->enabled_modes & (1 << bss->hw_mode)))
return current_ev;
- if (local->scan_flags & IEEE80211_SCAN_WPA_ONLY &&
- !bss->wpa_ie && !bss->rsn_ie)
- return current_ev;
-
- if (local->scan_flags & IEEE80211_SCAN_MATCH_SSID &&
- (local->scan_ssid_len != bss->ssid_len ||
- memcmp(local->scan_ssid, bss->ssid, bss->ssid_len) != 0))
- return current_ev;
-
memset(&iwe, 0, sizeof(iwe));
iwe.cmd = SIOCGIWAP;
iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
@@ -3006,34 +3487,6 @@ ieee80211_sta_scan_result(struct net_device *dev,
}
}
- do {
- char *buf;
-
- if (!(local->scan_flags & IEEE80211_SCAN_EXTRA_INFO))
- break;
-
- buf = kmalloc(100, GFP_ATOMIC);
- if (!buf)
- break;
-
- memset(&iwe, 0, sizeof(iwe));
- iwe.cmd = IWEVCUSTOM;
- sprintf(buf, "bcn_int=%d", bss->beacon_int);
- iwe.u.data.length = strlen(buf);
- current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe,
- buf);
-
- memset(&iwe, 0, sizeof(iwe));
- iwe.cmd = IWEVCUSTOM;
- sprintf(buf, "capab=0x%04x", bss->capability);
- iwe.u.data.length = strlen(buf);
- current_ev = iwe_stream_add_point(current_ev, end_buf, &iwe,
- buf);
-
- kfree(buf);
- break;
- } while (0);
-
return current_ev;
}
@@ -3122,8 +3575,8 @@ int ieee80211_sta_deauthenticate(struct net_device *dev, u16 reason)
printk(KERN_DEBUG "%s: deauthenticate(reason=%d)\n",
dev->name, reason);
- if (sdata->type != IEEE80211_IF_TYPE_STA &&
- sdata->type != IEEE80211_IF_TYPE_IBSS)
+ if (sdata->vif.type != IEEE80211_IF_TYPE_STA &&
+ sdata->vif.type != IEEE80211_IF_TYPE_IBSS)
return -EINVAL;
ieee80211_send_deauth(dev, ifsta, reason);
@@ -3140,7 +3593,7 @@ int ieee80211_sta_disassociate(struct net_device *dev, u16 reason)
printk(KERN_DEBUG "%s: disassociate(reason=%d)\n",
dev->name, reason);
- if (sdata->type != IEEE80211_IF_TYPE_STA)
+ if (sdata->vif.type != IEEE80211_IF_TYPE_STA)
return -EINVAL;
if (!(ifsta->flags & IEEE80211_STA_ASSOCIATED))
diff --git a/net/mac80211/key.c b/net/mac80211/key.c
index 0b2328f7d67c..ed57fb8e82fc 100644
--- a/net/mac80211/key.c
+++ b/net/mac80211/key.c
@@ -49,8 +49,8 @@ static const u8 *get_mac_for_key(struct ieee80211_key *key)
* address to indicate a transmit-only key.
*/
if (key->conf.alg != ALG_WEP &&
- (key->sdata->type == IEEE80211_IF_TYPE_AP ||
- key->sdata->type == IEEE80211_IF_TYPE_VLAN))
+ (key->sdata->vif.type == IEEE80211_IF_TYPE_AP ||
+ key->sdata->vif.type == IEEE80211_IF_TYPE_VLAN))
addr = zero_addr;
if (key->sta)
@@ -172,7 +172,7 @@ struct ieee80211_key *ieee80211_key_alloc(struct ieee80211_sub_if_data *sdata,
if (sta->flags & WLAN_STA_WME)
key->conf.flags |= IEEE80211_KEY_FLAG_WMM_STA;
} else {
- if (sdata->type == IEEE80211_IF_TYPE_STA) {
+ if (sdata->vif.type == IEEE80211_IF_TYPE_STA) {
struct sta_info *ap;
/* same here, the AP could be using QoS */
diff --git a/net/mac80211/rc80211_pid.h b/net/mac80211/rc80211_pid.h
new file mode 100644
index 000000000000..04afc13ed825
--- /dev/null
+++ b/net/mac80211/rc80211_pid.h
@@ -0,0 +1,285 @@
+/*
+ * Copyright 2007, Mattias Nissler <mattias.nissler@gmx.de>
+ * Copyright 2007, Stefano Brivio <stefano.brivio@polimi.it>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef RC80211_PID_H
+#define RC80211_PID_H
+
+/* Sampling period for measuring percentage of failed frames in ms. */
+#define RC_PID_INTERVAL 125
+
+/* Exponential averaging smoothness (used for I part of PID controller) */
+#define RC_PID_SMOOTHING_SHIFT 3
+#define RC_PID_SMOOTHING (1 << RC_PID_SMOOTHING_SHIFT)
+
+/* Sharpening factor (used for D part of PID controller) */
+#define RC_PID_SHARPENING_FACTOR 0
+#define RC_PID_SHARPENING_DURATION 0
+
+/* Fixed point arithmetic shifting amount. */
+#define RC_PID_ARITH_SHIFT 8
+
+/* Fixed point arithmetic factor. */
+#define RC_PID_ARITH_FACTOR (1 << RC_PID_ARITH_SHIFT)
+
+/* Proportional PID component coefficient. */
+#define RC_PID_COEFF_P 15
+/* Integral PID component coefficient. */
+#define RC_PID_COEFF_I 9
+/* Derivative PID component coefficient. */
+#define RC_PID_COEFF_D 15
+
+/* Target failed frames rate for the PID controller. NB: This effectively gives
+ * maximum failed frames percentage we're willing to accept. If the wireless
+ * link quality is good, the controller will fail to adjust failed frames
+ * percentage to the target. This is intentional.
+ */
+#define RC_PID_TARGET_PF 14
+
+/* Rate behaviour normalization quantity over time. */
+#define RC_PID_NORM_OFFSET 3
+
+/* Push high rates right after loading. */
+#define RC_PID_FAST_START 0
+
+/* Arithmetic right shift for positive and negative values for ISO C. */
+#define RC_PID_DO_ARITH_RIGHT_SHIFT(x, y) \
+ (x) < 0 ? -((-(x)) >> (y)) : (x) >> (y)
+
+enum rc_pid_event_type {
+ RC_PID_EVENT_TYPE_TX_STATUS,
+ RC_PID_EVENT_TYPE_RATE_CHANGE,
+ RC_PID_EVENT_TYPE_TX_RATE,
+ RC_PID_EVENT_TYPE_PF_SAMPLE,
+};
+
+union rc_pid_event_data {
+ /* RC_PID_EVENT_TX_STATUS */
+ struct {
+ struct ieee80211_tx_status tx_status;
+ };
+ /* RC_PID_EVENT_TYPE_RATE_CHANGE */
+ /* RC_PID_EVENT_TYPE_TX_RATE */
+ struct {
+ int index;
+ int rate;
+ };
+ /* RC_PID_EVENT_TYPE_PF_SAMPLE */
+ struct {
+ s32 pf_sample;
+ s32 prop_err;
+ s32 int_err;
+ s32 der_err;
+ };
+};
+
+struct rc_pid_event {
+ /* The time when the event occured */
+ unsigned long timestamp;
+
+ /* Event ID number */
+ unsigned int id;
+
+ /* Type of event */
+ enum rc_pid_event_type type;
+
+ /* type specific data */
+ union rc_pid_event_data data;
+};
+
+/* Size of the event ring buffer. */
+#define RC_PID_EVENT_RING_SIZE 32
+
+struct rc_pid_event_buffer {
+ /* Counter that generates event IDs */
+ unsigned int ev_count;
+
+ /* Ring buffer of events */
+ struct rc_pid_event ring[RC_PID_EVENT_RING_SIZE];
+
+ /* Index to the entry in events_buf to be reused */
+ unsigned int next_entry;
+
+ /* Lock that guards against concurrent access to this buffer struct */
+ spinlock_t lock;
+
+ /* Wait queue for poll/select and blocking I/O */
+ wait_queue_head_t waitqueue;
+};
+
+struct rc_pid_events_file_info {
+ /* The event buffer we read */
+ struct rc_pid_event_buffer *events;
+
+ /* The entry we have should read next */
+ unsigned int next_entry;
+};
+
+/**
+ * struct rc_pid_debugfs_entries - tunable parameters
+ *
+ * Algorithm parameters, tunable via debugfs.
+ * @dir: the debugfs directory for a specific phy
+ * @target: target percentage for failed frames
+ * @sampling_period: error sampling interval in milliseconds
+ * @coeff_p: absolute value of the proportional coefficient
+ * @coeff_i: absolute value of the integral coefficient
+ * @coeff_d: absolute value of the derivative coefficient
+ * @smoothing_shift: absolute value of the integral smoothing factor (i.e.
+ * amount of smoothing introduced by the exponential moving average)
+ * @sharpen_factor: absolute value of the derivative sharpening factor (i.e.
+ * amount of emphasis given to the derivative term after low activity
+ * events)
+ * @sharpen_duration: duration of the sharpening effect after the detected low
+ * activity event, relative to sampling_period
+ * @norm_offset: amount of normalization periodically performed on the learnt
+ * rate behaviour values (lower means we should trust more what we learnt
+ * about behaviour of rates, higher means we should trust more the natural
+ * ordering of rates)
+ * @fast_start: if Y, push high rates right after initialization
+ */
+struct rc_pid_debugfs_entries {
+ struct dentry *dir;
+ struct dentry *target;
+ struct dentry *sampling_period;
+ struct dentry *coeff_p;
+ struct dentry *coeff_i;
+ struct dentry *coeff_d;
+ struct dentry *smoothing_shift;
+ struct dentry *sharpen_factor;
+ struct dentry *sharpen_duration;
+ struct dentry *norm_offset;
+ struct dentry *fast_start;
+};
+
+void rate_control_pid_event_tx_status(struct rc_pid_event_buffer *buf,
+ struct ieee80211_tx_status *stat);
+
+void rate_control_pid_event_rate_change(struct rc_pid_event_buffer *buf,
+ int index, int rate);
+
+void rate_control_pid_event_tx_rate(struct rc_pid_event_buffer *buf,
+ int index, int rate);
+
+void rate_control_pid_event_pf_sample(struct rc_pid_event_buffer *buf,
+ s32 pf_sample, s32 prop_err,
+ s32 int_err, s32 der_err);
+
+void rate_control_pid_add_sta_debugfs(void *priv, void *priv_sta,
+ struct dentry *dir);
+
+void rate_control_pid_remove_sta_debugfs(void *priv, void *priv_sta);
+
+struct rc_pid_sta_info {
+ unsigned long last_change;
+ unsigned long last_sample;
+
+ u32 tx_num_failed;
+ u32 tx_num_xmit;
+
+ /* Average failed frames percentage error (i.e. actual vs. target
+ * percentage), scaled by RC_PID_SMOOTHING. This value is computed
+ * using using an exponential weighted average technique:
+ *
+ * (RC_PID_SMOOTHING - 1) * err_avg_old + err
+ * err_avg = ------------------------------------------
+ * RC_PID_SMOOTHING
+ *
+ * where err_avg is the new approximation, err_avg_old the previous one
+ * and err is the error w.r.t. to the current failed frames percentage
+ * sample. Note that the bigger RC_PID_SMOOTHING the more weight is
+ * given to the previous estimate, resulting in smoother behavior (i.e.
+ * corresponding to a longer integration window).
+ *
+ * For computation, we actually don't use the above formula, but this
+ * one:
+ *
+ * err_avg_scaled = err_avg_old_scaled - err_avg_old + err
+ *
+ * where:
+ * err_avg_scaled = err * RC_PID_SMOOTHING
+ * err_avg_old_scaled = err_avg_old * RC_PID_SMOOTHING
+ *
+ * This avoids floating point numbers and the per_failed_old value can
+ * easily be obtained by shifting per_failed_old_scaled right by
+ * RC_PID_SMOOTHING_SHIFT.
+ */
+ s32 err_avg_sc;
+
+ /* Last framed failes percentage sample. */
+ u32 last_pf;
+
+ /* Sharpening needed. */
+ u8 sharp_cnt;
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+ /* Event buffer */
+ struct rc_pid_event_buffer events;
+
+ /* Events debugfs file entry */
+ struct dentry *events_entry;
+#endif
+};
+
+/* Algorithm parameters. We keep them on a per-algorithm approach, so they can
+ * be tuned individually for each interface.
+ */
+struct rc_pid_rateinfo {
+
+ /* Map sorted rates to rates in ieee80211_hw_mode. */
+ int index;
+
+ /* Map rates in ieee80211_hw_mode to sorted rates. */
+ int rev_index;
+
+ /* Did we do any measurement on this rate? */
+ bool valid;
+
+ /* Comparison with the lowest rate. */
+ int diff;
+};
+
+struct rc_pid_info {
+
+ /* The failed frames percentage target. */
+ unsigned int target;
+
+ /* Rate at which failed frames percentage is sampled in 0.001s. */
+ unsigned int sampling_period;
+
+ /* P, I and D coefficients. */
+ int coeff_p;
+ int coeff_i;
+ int coeff_d;
+
+ /* Exponential averaging shift. */
+ unsigned int smoothing_shift;
+
+ /* Sharpening factor and duration. */
+ unsigned int sharpen_factor;
+ unsigned int sharpen_duration;
+
+ /* Normalization offset. */
+ unsigned int norm_offset;
+
+ /* Fast starst parameter. */
+ unsigned int fast_start;
+
+ /* Rates information. */
+ struct rc_pid_rateinfo *rinfo;
+
+ /* Index of the last used rate. */
+ int oldrate;
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+ /* Debugfs entries created for the parameters above. */
+ struct rc_pid_debugfs_entries dentries;
+#endif
+};
+
+#endif /* RC80211_PID_H */
diff --git a/net/mac80211/rc80211_pid_algo.c b/net/mac80211/rc80211_pid_algo.c
new file mode 100644
index 000000000000..554c4baed6fb
--- /dev/null
+++ b/net/mac80211/rc80211_pid_algo.c
@@ -0,0 +1,549 @@
+/*
+ * Copyright 2002-2005, Instant802 Networks, Inc.
+ * Copyright 2005, Devicescape Software, Inc.
+ * Copyright 2007, Mattias Nissler <mattias.nissler@gmx.de>
+ * Copyright 2007, Stefano Brivio <stefano.brivio@polimi.it>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/netdevice.h>
+#include <linux/types.h>
+#include <linux/skbuff.h>
+#include <linux/debugfs.h>
+#include <net/mac80211.h>
+#include "ieee80211_rate.h"
+
+#include "rc80211_pid.h"
+
+
+/* This is an implementation of a TX rate control algorithm that uses a PID
+ * controller. Given a target failed frames rate, the controller decides about
+ * TX rate changes to meet the target failed frames rate.
+ *
+ * The controller basically computes the following:
+ *
+ * adj = CP * err + CI * err_avg + CD * (err - last_err) * (1 + sharpening)
+ *
+ * where
+ * adj adjustment value that is used to switch TX rate (see below)
+ * err current error: target vs. current failed frames percentage
+ * last_err last error
+ * err_avg average (i.e. poor man's integral) of recent errors
+ * sharpening non-zero when fast response is needed (i.e. right after
+ * association or no frames sent for a long time), heading
+ * to zero over time
+ * CP Proportional coefficient
+ * CI Integral coefficient
+ * CD Derivative coefficient
+ *
+ * CP, CI, CD are subject to careful tuning.
+ *
+ * The integral component uses a exponential moving average approach instead of
+ * an actual sliding window. The advantage is that we don't need to keep an
+ * array of the last N error values and computation is easier.
+ *
+ * Once we have the adj value, we map it to a rate by means of a learning
+ * algorithm. This algorithm keeps the state of the percentual failed frames
+ * difference between rates. The behaviour of the lowest available rate is kept
+ * as a reference value, and every time we switch between two rates, we compute
+ * the difference between the failed frames each rate exhibited. By doing so,
+ * we compare behaviours which different rates exhibited in adjacent timeslices,
+ * thus the comparison is minimally affected by external conditions. This
+ * difference gets propagated to the whole set of measurements, so that the
+ * reference is always the same. Periodically, we normalize this set so that
+ * recent events weigh the most. By comparing the adj value with this set, we
+ * avoid pejorative switches to lower rates and allow for switches to higher
+ * rates if they behaved well.
+ *
+ * Note that for the computations we use a fixed-point representation to avoid
+ * floating point arithmetic. Hence, all values are shifted left by
+ * RC_PID_ARITH_SHIFT.
+ */
+
+
+/* Shift the adjustment so that we won't switch to a lower rate if it exhibited
+ * a worse failed frames behaviour and we'll choose the highest rate whose
+ * failed frames behaviour is not worse than the one of the original rate
+ * target. While at it, check that the adjustment is within the ranges. Then,
+ * provide the new rate index. */
+static int rate_control_pid_shift_adjust(struct rc_pid_rateinfo *r,
+ int adj, int cur, int l)
+{
+ int i, j, k, tmp;
+
+ j = r[cur].rev_index;
+ i = j + adj;
+
+ if (i < 0)
+ return r[0].index;
+ if (i >= l - 1)
+ return r[l - 1].index;
+
+ tmp = i;
+
+ if (adj < 0) {
+ for (k = j; k >= i; k--)
+ if (r[k].diff <= r[j].diff)
+ tmp = k;
+ } else {
+ for (k = i + 1; k + i < l; k++)
+ if (r[k].diff <= r[i].diff)
+ tmp = k;
+ }
+
+ return r[tmp].index;
+}
+
+static void rate_control_pid_adjust_rate(struct ieee80211_local *local,
+ struct sta_info *sta, int adj,
+ struct rc_pid_rateinfo *rinfo)
+{
+ struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_hw_mode *mode;
+ int newidx;
+ int maxrate;
+ int back = (adj > 0) ? 1 : -1;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
+
+ mode = local->oper_hw_mode;
+ maxrate = sdata->bss ? sdata->bss->max_ratectrl_rateidx : -1;
+
+ newidx = rate_control_pid_shift_adjust(rinfo, adj, sta->txrate,
+ mode->num_rates);
+
+ while (newidx != sta->txrate) {
+ if (rate_supported(sta, mode, newidx) &&
+ (maxrate < 0 || newidx <= maxrate)) {
+ sta->txrate = newidx;
+ break;
+ }
+
+ newidx += back;
+ }
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+ rate_control_pid_event_rate_change(
+ &((struct rc_pid_sta_info *)sta->rate_ctrl_priv)->events,
+ newidx, mode->rates[newidx].rate);
+#endif
+}
+
+/* Normalize the failed frames per-rate differences. */
+static void rate_control_pid_normalize(struct rc_pid_info *pinfo, int l)
+{
+ int i, norm_offset = pinfo->norm_offset;
+ struct rc_pid_rateinfo *r = pinfo->rinfo;
+
+ if (r[0].diff > norm_offset)
+ r[0].diff -= norm_offset;
+ else if (r[0].diff < -norm_offset)
+ r[0].diff += norm_offset;
+ for (i = 0; i < l - 1; i++)
+ if (r[i + 1].diff > r[i].diff + norm_offset)
+ r[i + 1].diff -= norm_offset;
+ else if (r[i + 1].diff <= r[i].diff)
+ r[i + 1].diff += norm_offset;
+}
+
+static void rate_control_pid_sample(struct rc_pid_info *pinfo,
+ struct ieee80211_local *local,
+ struct sta_info *sta)
+{
+ struct rc_pid_sta_info *spinfo = sta->rate_ctrl_priv;
+ struct rc_pid_rateinfo *rinfo = pinfo->rinfo;
+ struct ieee80211_hw_mode *mode;
+ u32 pf;
+ s32 err_avg;
+ u32 err_prop;
+ u32 err_int;
+ u32 err_der;
+ int adj, i, j, tmp;
+ unsigned long period;
+
+ mode = local->oper_hw_mode;
+ spinfo = sta->rate_ctrl_priv;
+
+ /* In case nothing happened during the previous control interval, turn
+ * the sharpening factor on. */
+ period = (HZ * pinfo->sampling_period + 500) / 1000;
+ if (!period)
+ period = 1;
+ if (jiffies - spinfo->last_sample > 2 * period)
+ spinfo->sharp_cnt = pinfo->sharpen_duration;
+
+ spinfo->last_sample = jiffies;
+
+ /* This should never happen, but in case, we assume the old sample is
+ * still a good measurement and copy it. */
+ if (unlikely(spinfo->tx_num_xmit == 0))
+ pf = spinfo->last_pf;
+ else {
+ pf = spinfo->tx_num_failed * 100 / spinfo->tx_num_xmit;
+ pf <<= RC_PID_ARITH_SHIFT;
+ }
+
+ spinfo->tx_num_xmit = 0;
+ spinfo->tx_num_failed = 0;
+
+ /* If we just switched rate, update the rate behaviour info. */
+ if (pinfo->oldrate != sta->txrate) {
+
+ i = rinfo[pinfo->oldrate].rev_index;
+ j = rinfo[sta->txrate].rev_index;
+
+ tmp = (pf - spinfo->last_pf);
+ tmp = RC_PID_DO_ARITH_RIGHT_SHIFT(tmp, RC_PID_ARITH_SHIFT);
+
+ rinfo[j].diff = rinfo[i].diff + tmp;
+ pinfo->oldrate = sta->txrate;
+ }
+ rate_control_pid_normalize(pinfo, mode->num_rates);
+
+ /* Compute the proportional, integral and derivative errors. */
+ err_prop = (pinfo->target << RC_PID_ARITH_SHIFT) - pf;
+
+ err_avg = spinfo->err_avg_sc >> pinfo->smoothing_shift;
+ spinfo->err_avg_sc = spinfo->err_avg_sc - err_avg + err_prop;
+ err_int = spinfo->err_avg_sc >> pinfo->smoothing_shift;
+
+ err_der = (pf - spinfo->last_pf) *
+ (1 + pinfo->sharpen_factor * spinfo->sharp_cnt);
+ spinfo->last_pf = pf;
+ if (spinfo->sharp_cnt)
+ spinfo->sharp_cnt--;
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+ rate_control_pid_event_pf_sample(&spinfo->events, pf, err_prop, err_int,
+ err_der);
+#endif
+
+ /* Compute the controller output. */
+ adj = (err_prop * pinfo->coeff_p + err_int * pinfo->coeff_i
+ + err_der * pinfo->coeff_d);
+ adj = RC_PID_DO_ARITH_RIGHT_SHIFT(adj, 2 * RC_PID_ARITH_SHIFT);
+
+ /* Change rate. */
+ if (adj)
+ rate_control_pid_adjust_rate(local, sta, adj, rinfo);
+}
+
+static void rate_control_pid_tx_status(void *priv, struct net_device *dev,
+ struct sk_buff *skb,
+ struct ieee80211_tx_status *status)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ struct ieee80211_sub_if_data *sdata;
+ struct rc_pid_info *pinfo = priv;
+ struct sta_info *sta;
+ struct rc_pid_sta_info *spinfo;
+ unsigned long period;
+
+ sta = sta_info_get(local, hdr->addr1);
+
+ if (!sta)
+ return;
+
+ /* Don't update the state if we're not controlling the rate. */
+ sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
+ if (sdata->bss && sdata->bss->force_unicast_rateidx > -1) {
+ sta->txrate = sdata->bss->max_ratectrl_rateidx;
+ return;
+ }
+
+ /* Ignore all frames that were sent with a different rate than the rate
+ * we currently advise mac80211 to use. */
+ if (status->control.rate != &local->oper_hw_mode->rates[sta->txrate])
+ goto ignore;
+
+ spinfo = sta->rate_ctrl_priv;
+ spinfo->tx_num_xmit++;
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+ rate_control_pid_event_tx_status(&spinfo->events, status);
+#endif
+
+ /* We count frames that totally failed to be transmitted as two bad
+ * frames, those that made it out but had some retries as one good and
+ * one bad frame. */
+ if (status->excessive_retries) {
+ spinfo->tx_num_failed += 2;
+ spinfo->tx_num_xmit++;
+ } else if (status->retry_count) {
+ spinfo->tx_num_failed++;
+ spinfo->tx_num_xmit++;
+ }
+
+ if (status->excessive_retries) {
+ sta->tx_retry_failed++;
+ sta->tx_num_consecutive_failures++;
+ sta->tx_num_mpdu_fail++;
+ } else {
+ sta->last_ack_rssi[0] = sta->last_ack_rssi[1];
+ sta->last_ack_rssi[1] = sta->last_ack_rssi[2];
+ sta->last_ack_rssi[2] = status->ack_signal;
+ sta->tx_num_consecutive_failures = 0;
+ sta->tx_num_mpdu_ok++;
+ }
+ sta->tx_retry_count += status->retry_count;
+ sta->tx_num_mpdu_fail += status->retry_count;
+
+ /* Update PID controller state. */
+ period = (HZ * pinfo->sampling_period + 500) / 1000;
+ if (!period)
+ period = 1;
+ if (time_after(jiffies, spinfo->last_sample + period))
+ rate_control_pid_sample(pinfo, local, sta);
+
+ignore:
+ sta_info_put(sta);
+}
+
+static void rate_control_pid_get_rate(void *priv, struct net_device *dev,
+ struct ieee80211_hw_mode *mode,
+ struct sk_buff *skb,
+ struct rate_selection *sel)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ struct ieee80211_sub_if_data *sdata;
+ struct sta_info *sta;
+ int rateidx;
+ u16 fc;
+
+ sta = sta_info_get(local, hdr->addr1);
+
+ /* Send management frames and broadcast/multicast data using lowest
+ * rate. */
+ fc = le16_to_cpu(hdr->frame_control);
+ if ((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA ||
+ is_multicast_ether_addr(hdr->addr1) || !sta) {
+ sel->rate = rate_lowest(local, mode, sta);
+ if (sta)
+ sta_info_put(sta);
+ return;
+ }
+
+ /* If a forced rate is in effect, select it. */
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ if (sdata->bss && sdata->bss->force_unicast_rateidx > -1)
+ sta->txrate = sdata->bss->force_unicast_rateidx;
+
+ rateidx = sta->txrate;
+
+ if (rateidx >= mode->num_rates)
+ rateidx = mode->num_rates - 1;
+
+ sta->last_txrate = rateidx;
+
+ sta_info_put(sta);
+
+ sel->rate = &mode->rates[rateidx];
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+ rate_control_pid_event_tx_rate(
+ &((struct rc_pid_sta_info *) sta->rate_ctrl_priv)->events,
+ rateidx, mode->rates[rateidx].rate);
+#endif
+}
+
+static void rate_control_pid_rate_init(void *priv, void *priv_sta,
+ struct ieee80211_local *local,
+ struct sta_info *sta)
+{
+ /* TODO: This routine should consider using RSSI from previous packets
+ * as we need to have IEEE 802.1X auth succeed immediately after assoc..
+ * Until that method is implemented, we will use the lowest supported
+ * rate as a workaround. */
+ sta->txrate = rate_lowest_index(local, local->oper_hw_mode, sta);
+}
+
+static void *rate_control_pid_alloc(struct ieee80211_local *local)
+{
+ struct rc_pid_info *pinfo;
+ struct rc_pid_rateinfo *rinfo;
+ struct ieee80211_hw_mode *mode;
+ int i, j, tmp;
+ bool s;
+#ifdef CONFIG_MAC80211_DEBUGFS
+ struct rc_pid_debugfs_entries *de;
+#endif
+
+ pinfo = kmalloc(sizeof(*pinfo), GFP_ATOMIC);
+ if (!pinfo)
+ return NULL;
+
+ /* We can safely assume that oper_hw_mode won't change unless we get
+ * reinitialized. */
+ mode = local->oper_hw_mode;
+ rinfo = kmalloc(sizeof(*rinfo) * mode->num_rates, GFP_ATOMIC);
+ if (!rinfo) {
+ kfree(pinfo);
+ return NULL;
+ }
+
+ /* Sort the rates. This is optimized for the most common case (i.e.
+ * almost-sorted CCK+OFDM rates). Kind of bubble-sort with reversed
+ * mapping too. */
+ for (i = 0; i < mode->num_rates; i++) {
+ rinfo[i].index = i;
+ rinfo[i].rev_index = i;
+ if (pinfo->fast_start)
+ rinfo[i].diff = 0;
+ else
+ rinfo[i].diff = i * pinfo->norm_offset;
+ }
+ for (i = 1; i < mode->num_rates; i++) {
+ s = 0;
+ for (j = 0; j < mode->num_rates - i; j++)
+ if (unlikely(mode->rates[rinfo[j].index].rate >
+ mode->rates[rinfo[j + 1].index].rate)) {
+ tmp = rinfo[j].index;
+ rinfo[j].index = rinfo[j + 1].index;
+ rinfo[j + 1].index = tmp;
+ rinfo[rinfo[j].index].rev_index = j;
+ rinfo[rinfo[j + 1].index].rev_index = j + 1;
+ s = 1;
+ }
+ if (!s)
+ break;
+ }
+
+ pinfo->target = RC_PID_TARGET_PF;
+ pinfo->sampling_period = RC_PID_INTERVAL;
+ pinfo->coeff_p = RC_PID_COEFF_P;
+ pinfo->coeff_i = RC_PID_COEFF_I;
+ pinfo->coeff_d = RC_PID_COEFF_D;
+ pinfo->smoothing_shift = RC_PID_SMOOTHING_SHIFT;
+ pinfo->sharpen_factor = RC_PID_SHARPENING_FACTOR;
+ pinfo->sharpen_duration = RC_PID_SHARPENING_DURATION;
+ pinfo->norm_offset = RC_PID_NORM_OFFSET;
+ pinfo->fast_start = RC_PID_FAST_START;
+ pinfo->rinfo = rinfo;
+ pinfo->oldrate = 0;
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+ de = &pinfo->dentries;
+ de->dir = debugfs_create_dir("rc80211_pid",
+ local->hw.wiphy->debugfsdir);
+ de->target = debugfs_create_u32("target_pf", S_IRUSR | S_IWUSR,
+ de->dir, &pinfo->target);
+ de->sampling_period = debugfs_create_u32("sampling_period",
+ S_IRUSR | S_IWUSR, de->dir,
+ &pinfo->sampling_period);
+ de->coeff_p = debugfs_create_u32("coeff_p", S_IRUSR | S_IWUSR,
+ de->dir, &pinfo->coeff_p);
+ de->coeff_i = debugfs_create_u32("coeff_i", S_IRUSR | S_IWUSR,
+ de->dir, &pinfo->coeff_i);
+ de->coeff_d = debugfs_create_u32("coeff_d", S_IRUSR | S_IWUSR,
+ de->dir, &pinfo->coeff_d);
+ de->smoothing_shift = debugfs_create_u32("smoothing_shift",
+ S_IRUSR | S_IWUSR, de->dir,
+ &pinfo->smoothing_shift);
+ de->sharpen_factor = debugfs_create_u32("sharpen_factor",
+ S_IRUSR | S_IWUSR, de->dir,
+ &pinfo->sharpen_factor);
+ de->sharpen_duration = debugfs_create_u32("sharpen_duration",
+ S_IRUSR | S_IWUSR, de->dir,
+ &pinfo->sharpen_duration);
+ de->norm_offset = debugfs_create_u32("norm_offset",
+ S_IRUSR | S_IWUSR, de->dir,
+ &pinfo->norm_offset);
+ de->fast_start = debugfs_create_bool("fast_start",
+ S_IRUSR | S_IWUSR, de->dir,
+ &pinfo->fast_start);
+#endif
+
+ return pinfo;
+}
+
+static void rate_control_pid_free(void *priv)
+{
+ struct rc_pid_info *pinfo = priv;
+#ifdef CONFIG_MAC80211_DEBUGFS
+ struct rc_pid_debugfs_entries *de = &pinfo->dentries;
+
+ debugfs_remove(de->fast_start);
+ debugfs_remove(de->norm_offset);
+ debugfs_remove(de->sharpen_duration);
+ debugfs_remove(de->sharpen_factor);
+ debugfs_remove(de->smoothing_shift);
+ debugfs_remove(de->coeff_d);
+ debugfs_remove(de->coeff_i);
+ debugfs_remove(de->coeff_p);
+ debugfs_remove(de->sampling_period);
+ debugfs_remove(de->target);
+ debugfs_remove(de->dir);
+#endif
+
+ kfree(pinfo->rinfo);
+ kfree(pinfo);
+}
+
+static void rate_control_pid_clear(void *priv)
+{
+}
+
+static void *rate_control_pid_alloc_sta(void *priv, gfp_t gfp)
+{
+ struct rc_pid_sta_info *spinfo;
+
+ spinfo = kzalloc(sizeof(*spinfo), gfp);
+ if (spinfo == NULL)
+ return NULL;
+
+ spinfo->last_sample = jiffies;
+
+#ifdef CONFIG_MAC80211_DEBUGFS
+ spin_lock_init(&spinfo->events.lock);
+ init_waitqueue_head(&spinfo->events.waitqueue);
+#endif
+
+ return spinfo;
+}
+
+static void rate_control_pid_free_sta(void *priv, void *priv_sta)
+{
+ struct rc_pid_sta_info *spinfo = priv_sta;
+ kfree(spinfo);
+}
+
+static struct rate_control_ops mac80211_rcpid = {
+ .name = "pid",
+ .tx_status = rate_control_pid_tx_status,
+ .get_rate = rate_control_pid_get_rate,
+ .rate_init = rate_control_pid_rate_init,
+ .clear = rate_control_pid_clear,
+ .alloc = rate_control_pid_alloc,
+ .free = rate_control_pid_free,
+ .alloc_sta = rate_control_pid_alloc_sta,
+ .free_sta = rate_control_pid_free_sta,
+#ifdef CONFIG_MAC80211_DEBUGFS
+ .add_sta_debugfs = rate_control_pid_add_sta_debugfs,
+ .remove_sta_debugfs = rate_control_pid_remove_sta_debugfs,
+#endif
+};
+
+MODULE_DESCRIPTION("PID controller based rate control algorithm");
+MODULE_AUTHOR("Stefano Brivio");
+MODULE_AUTHOR("Mattias Nissler");
+MODULE_LICENSE("GPL");
+
+int __init rc80211_pid_init(void)
+{
+ return ieee80211_rate_control_register(&mac80211_rcpid);
+}
+
+void __exit rc80211_pid_exit(void)
+{
+ ieee80211_rate_control_unregister(&mac80211_rcpid);
+}
+
+#ifdef CONFIG_MAC80211_RC_PID_MODULE
+module_init(rc80211_pid_init);
+module_exit(rc80211_pid_exit);
+#endif
diff --git a/net/mac80211/rc80211_pid_debugfs.c b/net/mac80211/rc80211_pid_debugfs.c
new file mode 100644
index 000000000000..88b8dc9999bb
--- /dev/null
+++ b/net/mac80211/rc80211_pid_debugfs.c
@@ -0,0 +1,223 @@
+/*
+ * Copyright 2007, Mattias Nissler <mattias.nissler@gmx.de>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/spinlock.h>
+#include <linux/poll.h>
+#include <linux/netdevice.h>
+#include <linux/types.h>
+#include <linux/skbuff.h>
+
+#include <net/mac80211.h>
+#include "ieee80211_rate.h"
+
+#include "rc80211_pid.h"
+
+static void rate_control_pid_event(struct rc_pid_event_buffer *buf,
+ enum rc_pid_event_type type,
+ union rc_pid_event_data *data)
+{
+ struct rc_pid_event *ev;
+ unsigned long status;
+
+ spin_lock_irqsave(&buf->lock, status);
+ ev = &(buf->ring[buf->next_entry]);
+ buf->next_entry = (buf->next_entry + 1) % RC_PID_EVENT_RING_SIZE;
+
+ ev->timestamp = jiffies;
+ ev->id = buf->ev_count++;
+ ev->type = type;
+ ev->data = *data;
+
+ spin_unlock_irqrestore(&buf->lock, status);
+
+ wake_up_all(&buf->waitqueue);
+}
+
+void rate_control_pid_event_tx_status(struct rc_pid_event_buffer *buf,
+ struct ieee80211_tx_status *stat)
+{
+ union rc_pid_event_data evd;
+
+ memcpy(&evd.tx_status, stat, sizeof(struct ieee80211_tx_status));
+ rate_control_pid_event(buf, RC_PID_EVENT_TYPE_TX_STATUS, &evd);
+}
+
+void rate_control_pid_event_rate_change(struct rc_pid_event_buffer *buf,
+ int index, int rate)
+{
+ union rc_pid_event_data evd;
+
+ evd.index = index;
+ evd.rate = rate;
+ rate_control_pid_event(buf, RC_PID_EVENT_TYPE_RATE_CHANGE, &evd);
+}
+
+void rate_control_pid_event_tx_rate(struct rc_pid_event_buffer *buf,
+ int index, int rate)
+{
+ union rc_pid_event_data evd;
+
+ evd.index = index;
+ evd.rate = rate;
+ rate_control_pid_event(buf, RC_PID_EVENT_TYPE_TX_RATE, &evd);
+}
+
+void rate_control_pid_event_pf_sample(struct rc_pid_event_buffer *buf,
+ s32 pf_sample, s32 prop_err,
+ s32 int_err, s32 der_err)
+{
+ union rc_pid_event_data evd;
+
+ evd.pf_sample = pf_sample;
+ evd.prop_err = prop_err;
+ evd.int_err = int_err;
+ evd.der_err = der_err;
+ rate_control_pid_event(buf, RC_PID_EVENT_TYPE_PF_SAMPLE, &evd);
+}
+
+static int rate_control_pid_events_open(struct inode *inode, struct file *file)
+{
+ struct rc_pid_sta_info *sinfo = inode->i_private;
+ struct rc_pid_event_buffer *events = &sinfo->events;
+ struct rc_pid_events_file_info *file_info;
+ unsigned int status;
+
+ /* Allocate a state struct */
+ file_info = kmalloc(sizeof(*file_info), GFP_KERNEL);
+ if (file_info == NULL)
+ return -ENOMEM;
+
+ spin_lock_irqsave(&events->lock, status);
+
+ file_info->next_entry = events->next_entry;
+ file_info->events = events;
+
+ spin_unlock_irqrestore(&events->lock, status);
+
+ file->private_data = file_info;
+
+ return 0;
+}
+
+static int rate_control_pid_events_release(struct inode *inode,
+ struct file *file)
+{
+ struct rc_pid_events_file_info *file_info = file->private_data;
+
+ kfree(file_info);
+
+ return 0;
+}
+
+static unsigned int rate_control_pid_events_poll(struct file *file,
+ poll_table *wait)
+{
+ struct rc_pid_events_file_info *file_info = file->private_data;
+
+ poll_wait(file, &file_info->events->waitqueue, wait);
+
+ return POLLIN | POLLRDNORM;
+}
+
+#define RC_PID_PRINT_BUF_SIZE 64
+
+static ssize_t rate_control_pid_events_read(struct file *file, char __user *buf,
+ size_t length, loff_t *offset)
+{
+ struct rc_pid_events_file_info *file_info = file->private_data;
+ struct rc_pid_event_buffer *events = file_info->events;
+ struct rc_pid_event *ev;
+ char pb[RC_PID_PRINT_BUF_SIZE];
+ int ret;
+ int p;
+ unsigned int status;
+
+ /* Check if there is something to read. */
+ if (events->next_entry == file_info->next_entry) {
+ if (file->f_flags & O_NONBLOCK)
+ return -EAGAIN;
+
+ /* Wait */
+ ret = wait_event_interruptible(events->waitqueue,
+ events->next_entry != file_info->next_entry);
+
+ if (ret)
+ return ret;
+ }
+
+ /* Write out one event per call. I don't care whether it's a little
+ * inefficient, this is debugging code anyway. */
+ spin_lock_irqsave(&events->lock, status);
+
+ /* Get an event */
+ ev = &(events->ring[file_info->next_entry]);
+ file_info->next_entry = (file_info->next_entry + 1) %
+ RC_PID_EVENT_RING_SIZE;
+
+ /* Print information about the event. Note that userpace needs to
+ * provide large enough buffers. */
+ length = length < RC_PID_PRINT_BUF_SIZE ?
+ length : RC_PID_PRINT_BUF_SIZE;
+ p = snprintf(pb, length, "%u %lu ", ev->id, ev->timestamp);
+ switch (ev->type) {
+ case RC_PID_EVENT_TYPE_TX_STATUS:
+ p += snprintf(pb + p, length - p, "tx_status %u %u",
+ ev->data.tx_status.excessive_retries,
+ ev->data.tx_status.retry_count);
+ break;
+ case RC_PID_EVENT_TYPE_RATE_CHANGE:
+ p += snprintf(pb + p, length - p, "rate_change %d %d",
+ ev->data.index, ev->data.rate);
+ break;
+ case RC_PID_EVENT_TYPE_TX_RATE:
+ p += snprintf(pb + p, length - p, "tx_rate %d %d",
+ ev->data.index, ev->data.rate);
+ break;
+ case RC_PID_EVENT_TYPE_PF_SAMPLE:
+ p += snprintf(pb + p, length - p,
+ "pf_sample %d %d %d %d",
+ ev->data.pf_sample, ev->data.prop_err,
+ ev->data.int_err, ev->data.der_err);
+ break;
+ }
+ p += snprintf(pb + p, length - p, "\n");
+
+ spin_unlock_irqrestore(&events->lock, status);
+
+ if (copy_to_user(buf, pb, p))
+ return -EFAULT;
+
+ return p;
+}
+
+#undef RC_PID_PRINT_BUF_SIZE
+
+static struct file_operations rc_pid_fop_events = {
+ .owner = THIS_MODULE,
+ .read = rate_control_pid_events_read,
+ .poll = rate_control_pid_events_poll,
+ .open = rate_control_pid_events_open,
+ .release = rate_control_pid_events_release,
+};
+
+void rate_control_pid_add_sta_debugfs(void *priv, void *priv_sta,
+ struct dentry *dir)
+{
+ struct rc_pid_sta_info *spinfo = priv_sta;
+
+ spinfo->events_entry = debugfs_create_file("rc_pid_events", S_IRUGO,
+ dir, spinfo,
+ &rc_pid_fop_events);
+}
+
+void rate_control_pid_remove_sta_debugfs(void *priv, void *priv_sta)
+{
+ struct rc_pid_sta_info *spinfo = priv_sta;
+
+ debugfs_remove(spinfo->events_entry);
+}
diff --git a/net/mac80211/rc80211_simple.c b/net/mac80211/rc80211_simple.c
index da72737364e4..934676d687d6 100644
--- a/net/mac80211/rc80211_simple.c
+++ b/net/mac80211/rc80211_simple.c
@@ -13,6 +13,7 @@
#include <linux/slab.h>
#include <linux/skbuff.h>
#include <linux/compiler.h>
+#include <linux/module.h>
#include <net/mac80211.h>
#include "ieee80211_i.h"
@@ -23,6 +24,8 @@
/* This is a minimal implementation of TX rate controlling that can be used
* as the default when no improved mechanisms are available. */
+#define RATE_CONTROL_NUM_DOWN 20
+#define RATE_CONTROL_NUM_UP 15
#define RATE_CONTROL_EMERG_DEC 2
#define RATE_CONTROL_INTERVAL (HZ / 20)
@@ -87,26 +90,6 @@ static void rate_control_rate_dec(struct ieee80211_local *local,
}
}
-
-static struct ieee80211_rate *
-rate_control_lowest_rate(struct ieee80211_local *local,
- struct ieee80211_hw_mode *mode)
-{
- int i;
-
- for (i = 0; i < mode->num_rates; i++) {
- struct ieee80211_rate *rate = &mode->rates[i];
-
- if (rate->flags & IEEE80211_RATE_SUPPORTED)
- return rate;
- }
-
- printk(KERN_DEBUG "rate_control_lowest_rate - no supported rates "
- "found\n");
- return &mode->rates[0];
-}
-
-
struct global_rate_control {
int dummy;
};
@@ -216,35 +199,33 @@ static void rate_control_simple_tx_status(void *priv, struct net_device *dev,
}
-static struct ieee80211_rate *
+static void
rate_control_simple_get_rate(void *priv, struct net_device *dev,
+ struct ieee80211_hw_mode *mode,
struct sk_buff *skb,
- struct rate_control_extra *extra)
+ struct rate_selection *sel)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_sub_if_data *sdata;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
- struct ieee80211_hw_mode *mode = extra->mode;
+ struct ieee80211_sub_if_data *sdata;
struct sta_info *sta;
- int rateidx, nonerp_idx;
+ int rateidx;
u16 fc;
- memset(extra, 0, sizeof(*extra));
+ sta = sta_info_get(local, hdr->addr1);
+ /* Send management frames and broadcast/multicast data using lowest
+ * rate. */
fc = le16_to_cpu(hdr->frame_control);
if ((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA ||
- (hdr->addr1[0] & 0x01)) {
- /* Send management frames and broadcast/multicast data using
- * lowest rate. */
- /* TODO: this could probably be improved.. */
- return rate_control_lowest_rate(local, mode);
+ is_multicast_ether_addr(hdr->addr1) || !sta) {
+ sel->rate = rate_lowest(local, mode, sta);
+ if (sta)
+ sta_info_put(sta);
+ return;
}
- sta = sta_info_get(local, hdr->addr1);
-
- if (!sta)
- return rate_control_lowest_rate(local, mode);
-
+ /* If a forced rate is in effect, select it. */
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
if (sdata->bss && sdata->bss->force_unicast_rateidx > -1)
sta->txrate = sdata->bss->force_unicast_rateidx;
@@ -255,17 +236,10 @@ rate_control_simple_get_rate(void *priv, struct net_device *dev,
rateidx = mode->num_rates - 1;
sta->last_txrate = rateidx;
- nonerp_idx = rateidx;
- while (nonerp_idx > 0 &&
- ((mode->rates[nonerp_idx].flags & IEEE80211_RATE_ERP) ||
- !(mode->rates[nonerp_idx].flags & IEEE80211_RATE_SUPPORTED) ||
- !(sta->supp_rates & BIT(nonerp_idx))))
- nonerp_idx--;
- extra->nonerp = &mode->rates[nonerp_idx];
sta_info_put(sta);
- return &mode->rates[rateidx];
+ sel->rate = &mode->rates[rateidx];
}
@@ -391,7 +365,7 @@ static void rate_control_simple_remove_sta_debugfs(void *priv, void *priv_sta)
}
#endif
-struct rate_control_ops mac80211_rcsimple = {
+static struct rate_control_ops mac80211_rcsimple = {
.name = "simple",
.tx_status = rate_control_simple_tx_status,
.get_rate = rate_control_simple_get_rate,
@@ -406,3 +380,21 @@ struct rate_control_ops mac80211_rcsimple = {
.remove_sta_debugfs = rate_control_simple_remove_sta_debugfs,
#endif
};
+
+MODULE_LICENSE("GPL");
+MODULE_DESCRIPTION("Simple rate control algorithm");
+
+int __init rc80211_simple_init(void)
+{
+ return ieee80211_rate_control_register(&mac80211_rcsimple);
+}
+
+void __exit rc80211_simple_exit(void)
+{
+ ieee80211_rate_control_unregister(&mac80211_rcsimple);
+}
+
+#ifdef CONFIG_MAC80211_RC_SIMPLE_MODULE
+module_init(rc80211_simple_init);
+module_exit(rc80211_simple_exit);
+#endif
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index a7263fc476bd..89e1e3070ec1 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -24,6 +24,10 @@
#include "tkip.h"
#include "wme.h"
+u8 ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw,
+ struct tid_ampdu_rx *tid_agg_rx,
+ struct sk_buff *skb, u16 mpdu_seq_num,
+ int bar_req);
/*
* monitor mode reception
*
@@ -61,8 +65,12 @@ static inline int should_drop_frame(struct ieee80211_rx_status *status,
return 1;
if (unlikely(skb->len < 16 + present_fcs_len + radiotap_len))
return 1;
- if ((hdr->frame_control & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
- cpu_to_le16(IEEE80211_FTYPE_CTL))
+ if (((hdr->frame_control & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
+ cpu_to_le16(IEEE80211_FTYPE_CTL)) &&
+ ((hdr->frame_control & cpu_to_le16(IEEE80211_FCTL_STYPE)) !=
+ cpu_to_le16(IEEE80211_STYPE_PSPOLL)) &&
+ ((hdr->frame_control & cpu_to_le16(IEEE80211_FCTL_STYPE)) !=
+ cpu_to_le16(IEEE80211_STYPE_BACK_REQ)))
return 1;
return 0;
}
@@ -79,8 +87,9 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb,
struct ieee80211_sub_if_data *sdata;
struct ieee80211_rate *rate;
int needed_headroom = 0;
- struct ieee80211_rtap_hdr {
- struct ieee80211_radiotap_header hdr;
+ struct ieee80211_radiotap_header *rthdr;
+ __le64 *rttsft = NULL;
+ struct ieee80211_rtap_fixed_data {
u8 flags;
u8 rate;
__le16 chan_freq;
@@ -88,7 +97,7 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb,
u8 antsignal;
u8 padding_for_rxflags;
__le16 rx_flags;
- } __attribute__ ((packed)) *rthdr;
+ } __attribute__ ((packed)) *rtfixed;
struct sk_buff *skb, *skb2;
struct net_device *prev_dev = NULL;
int present_fcs_len = 0;
@@ -105,7 +114,8 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb,
if (status->flag & RX_FLAG_RADIOTAP)
rtap_len = ieee80211_get_radiotap_len(origskb->data);
else
- needed_headroom = sizeof(*rthdr);
+ /* room for radiotap header, always present fields and TSFT */
+ needed_headroom = sizeof(*rthdr) + sizeof(*rtfixed) + 8;
if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS)
present_fcs_len = FCS_LEN;
@@ -133,7 +143,7 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb,
* them allocate enough headroom to start with.
*/
if (skb_headroom(skb) < needed_headroom &&
- pskb_expand_head(skb, sizeof(*rthdr), 0, GFP_ATOMIC)) {
+ pskb_expand_head(skb, needed_headroom, 0, GFP_ATOMIC)) {
dev_kfree_skb(skb);
return NULL;
}
@@ -152,45 +162,59 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb,
/* if necessary, prepend radiotap information */
if (!(status->flag & RX_FLAG_RADIOTAP)) {
+ rtfixed = (void *) skb_push(skb, sizeof(*rtfixed));
+ rtap_len = sizeof(*rthdr) + sizeof(*rtfixed);
+ if (status->flag & RX_FLAG_TSFT) {
+ rttsft = (void *) skb_push(skb, sizeof(*rttsft));
+ rtap_len += 8;
+ }
rthdr = (void *) skb_push(skb, sizeof(*rthdr));
memset(rthdr, 0, sizeof(*rthdr));
- rthdr->hdr.it_len = cpu_to_le16(sizeof(*rthdr));
- rthdr->hdr.it_present =
+ memset(rtfixed, 0, sizeof(*rtfixed));
+ rthdr->it_present =
cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
(1 << IEEE80211_RADIOTAP_RATE) |
(1 << IEEE80211_RADIOTAP_CHANNEL) |
(1 << IEEE80211_RADIOTAP_DB_ANTSIGNAL) |
(1 << IEEE80211_RADIOTAP_RX_FLAGS));
- rthdr->flags = local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS ?
- IEEE80211_RADIOTAP_F_FCS : 0;
+ rtfixed->flags = 0;
+ if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS)
+ rtfixed->flags |= IEEE80211_RADIOTAP_F_FCS;
+
+ if (rttsft) {
+ *rttsft = cpu_to_le64(status->mactime);
+ rthdr->it_present |=
+ cpu_to_le32(1 << IEEE80211_RADIOTAP_TSFT);
+ }
/* FIXME: when radiotap gets a 'bad PLCP' flag use it here */
- rthdr->rx_flags = 0;
+ rtfixed->rx_flags = 0;
if (status->flag &
(RX_FLAG_FAILED_FCS_CRC | RX_FLAG_FAILED_PLCP_CRC))
- rthdr->rx_flags |=
+ rtfixed->rx_flags |=
cpu_to_le16(IEEE80211_RADIOTAP_F_RX_BADFCS);
rate = ieee80211_get_rate(local, status->phymode,
status->rate);
if (rate)
- rthdr->rate = rate->rate / 5;
+ rtfixed->rate = rate->rate / 5;
- rthdr->chan_freq = cpu_to_le16(status->freq);
+ rtfixed->chan_freq = cpu_to_le16(status->freq);
if (status->phymode == MODE_IEEE80211A)
- rthdr->chan_flags =
+ rtfixed->chan_flags =
cpu_to_le16(IEEE80211_CHAN_OFDM |
IEEE80211_CHAN_5GHZ);
else
- rthdr->chan_flags =
+ rtfixed->chan_flags =
cpu_to_le16(IEEE80211_CHAN_DYN |
IEEE80211_CHAN_2GHZ);
- rthdr->antsignal = status->ssi;
+ rtfixed->antsignal = status->ssi;
+ rthdr->it_len = cpu_to_le16(rtap_len);
}
- skb_set_mac_header(skb, 0);
+ skb_reset_mac_header(skb);
skb->ip_summed = CHECKSUM_UNNECESSARY;
skb->pkt_type = PACKET_OTHERHOST;
skb->protocol = htons(ETH_P_802_2);
@@ -199,7 +223,7 @@ ieee80211_rx_monitor(struct ieee80211_local *local, struct sk_buff *origskb,
if (!netif_running(sdata->dev))
continue;
- if (sdata->type != IEEE80211_IF_TYPE_MNTR)
+ if (sdata->vif.type != IEEE80211_IF_TYPE_MNTR)
continue;
if (prev_dev) {
@@ -243,6 +267,10 @@ ieee80211_rx_h_parse_qos(struct ieee80211_txrx_data *rx)
u8 *qc = data + ieee80211_get_hdrlen(rx->fc) - QOS_CONTROL_LEN;
/* frame has qos control */
tid = qc[0] & QOS_CONTROL_TID_MASK;
+ if (qc[0] & IEEE80211_QOS_CONTROL_A_MSDU_PRESENT)
+ rx->flags |= IEEE80211_TXRXD_RX_AMSDU;
+ else
+ rx->flags &= ~IEEE80211_TXRXD_RX_AMSDU;
} else {
if (unlikely((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT)) {
/* Separate TID for management frames */
@@ -266,11 +294,11 @@ ieee80211_rx_h_parse_qos(struct ieee80211_txrx_data *rx)
return TXRX_CONTINUE;
}
-static ieee80211_txrx_result
-ieee80211_rx_h_load_stats(struct ieee80211_txrx_data *rx)
+
+static u32 ieee80211_rx_load_stats(struct ieee80211_local *local,
+ struct sk_buff *skb,
+ struct ieee80211_rx_status *status)
{
- struct ieee80211_local *local = rx->local;
- struct sk_buff *skb = rx->skb;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
u32 load = 0, hdrtime;
struct ieee80211_rate *rate;
@@ -284,7 +312,7 @@ ieee80211_rx_h_load_stats(struct ieee80211_txrx_data *rx)
rate = &mode->rates[0];
for (i = 0; i < mode->num_rates; i++) {
- if (mode->rates[i].val == rx->u.rx.status->rate) {
+ if (mode->rates[i].val == status->rate) {
rate = &mode->rates[i];
break;
}
@@ -308,16 +336,13 @@ ieee80211_rx_h_load_stats(struct ieee80211_txrx_data *rx)
/* Divide channel_use by 8 to avoid wrapping around the counter */
load >>= CHAN_UTIL_SHIFT;
- local->channel_use_raw += load;
- rx->u.rx.load = load;
- return TXRX_CONTINUE;
+ return load;
}
ieee80211_rx_handler ieee80211_rx_pre_handlers[] =
{
ieee80211_rx_h_parse_qos,
- ieee80211_rx_h_load_stats,
NULL
};
@@ -338,8 +363,14 @@ ieee80211_rx_h_passive_scan(struct ieee80211_txrx_data *rx)
struct ieee80211_local *local = rx->local;
struct sk_buff *skb = rx->skb;
- if (unlikely(local->sta_scanning != 0)) {
- ieee80211_sta_rx_scan(rx->dev, skb, rx->u.rx.status);
+ if (unlikely(local->sta_hw_scanning))
+ return ieee80211_sta_rx_scan(rx->dev, skb, rx->u.rx.status);
+
+ if (unlikely(local->sta_sw_scanning)) {
+ /* drop all the other packets during a software scan anyway */
+ if (ieee80211_sta_rx_scan(rx->dev, skb, rx->u.rx.status)
+ != TXRX_QUEUED)
+ dev_kfree_skb(skb);
return TXRX_QUEUED;
}
@@ -377,18 +408,6 @@ ieee80211_rx_h_check(struct ieee80211_txrx_data *rx)
return TXRX_DROP;
}
- if (!(rx->flags & IEEE80211_TXRXD_RXRA_MATCH))
- rx->skb->pkt_type = PACKET_OTHERHOST;
- else if (compare_ether_addr(rx->dev->dev_addr, hdr->addr1) == 0)
- rx->skb->pkt_type = PACKET_HOST;
- else if (is_multicast_ether_addr(hdr->addr1)) {
- if (is_broadcast_ether_addr(hdr->addr1))
- rx->skb->pkt_type = PACKET_BROADCAST;
- else
- rx->skb->pkt_type = PACKET_MULTICAST;
- } else
- rx->skb->pkt_type = PACKET_OTHERHOST;
-
/* Drop disallowed frame classes based on STA auth/assoc state;
* IEEE 802.11, Chap 5.5.
*
@@ -400,7 +419,7 @@ ieee80211_rx_h_check(struct ieee80211_txrx_data *rx)
if (unlikely(((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA ||
((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_CTL &&
(rx->fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PSPOLL)) &&
- rx->sdata->type != IEEE80211_IF_TYPE_IBSS &&
+ rx->sdata->vif.type != IEEE80211_IF_TYPE_IBSS &&
(!rx->sta || !(rx->sta->flags & WLAN_STA_ASSOC)))) {
if ((!(rx->fc & IEEE80211_FCTL_FROMDS) &&
!(rx->fc & IEEE80211_FCTL_TODS) &&
@@ -620,13 +639,14 @@ ieee80211_rx_h_sta_process(struct ieee80211_txrx_data *rx)
/* Update last_rx only for IBSS packets which are for the current
* BSSID to avoid keeping the current IBSS network alive in cases where
* other STAs are using different BSSID. */
- if (rx->sdata->type == IEEE80211_IF_TYPE_IBSS) {
- u8 *bssid = ieee80211_get_bssid(hdr, rx->skb->len);
+ if (rx->sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
+ u8 *bssid = ieee80211_get_bssid(hdr, rx->skb->len,
+ IEEE80211_IF_TYPE_IBSS);
if (compare_ether_addr(bssid, rx->sdata->u.sta.bssid) == 0)
sta->last_rx = jiffies;
} else
if (!is_multicast_ether_addr(hdr->addr1) ||
- rx->sdata->type == IEEE80211_IF_TYPE_STA) {
+ rx->sdata->vif.type == IEEE80211_IF_TYPE_STA) {
/* Update last_rx only for unicast frames in order to prevent
* the Probe Request frames (the only broadcast frames from a
* STA in infrastructure mode) from keeping a connection alive.
@@ -870,6 +890,7 @@ ieee80211_rx_h_defragment(struct ieee80211_txrx_data *rx)
static ieee80211_txrx_result
ieee80211_rx_h_ps_poll(struct ieee80211_txrx_data *rx)
{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev);
struct sk_buff *skb;
int no_pending_pkts;
DECLARE_MAC_BUF(mac);
@@ -880,6 +901,10 @@ ieee80211_rx_h_ps_poll(struct ieee80211_txrx_data *rx)
!(rx->flags & IEEE80211_TXRXD_RXRA_MATCH)))
return TXRX_CONTINUE;
+ if ((sdata->vif.type != IEEE80211_IF_TYPE_AP) &&
+ (sdata->vif.type != IEEE80211_IF_TYPE_VLAN))
+ return TXRX_DROP;
+
skb = skb_dequeue(&rx->sta->tx_filtered);
if (!skb) {
skb = skb_dequeue(&rx->sta->ps_tx_buf);
@@ -956,68 +981,54 @@ ieee80211_rx_h_remove_qos_control(struct ieee80211_txrx_data *rx)
return TXRX_CONTINUE;
}
-static ieee80211_txrx_result
-ieee80211_rx_h_802_1x_pae(struct ieee80211_txrx_data *rx)
+static int
+ieee80211_802_1x_port_control(struct ieee80211_txrx_data *rx)
{
- if (rx->sdata->eapol && ieee80211_is_eapol(rx->skb) &&
- rx->sdata->type != IEEE80211_IF_TYPE_STA &&
- (rx->flags & IEEE80211_TXRXD_RXRA_MATCH))
- return TXRX_CONTINUE;
-
- if (unlikely(rx->sdata->ieee802_1x &&
- (rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA &&
- (rx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_NULLFUNC &&
- (!rx->sta || !(rx->sta->flags & WLAN_STA_AUTHORIZED)) &&
- !ieee80211_is_eapol(rx->skb))) {
+ if (unlikely(rx->sdata->ieee802_1x_pac &&
+ (!rx->sta || !(rx->sta->flags & WLAN_STA_AUTHORIZED)))) {
#ifdef CONFIG_MAC80211_DEBUG
- struct ieee80211_hdr *hdr =
- (struct ieee80211_hdr *) rx->skb->data;
- DECLARE_MAC_BUF(mac);
- printk(KERN_DEBUG "%s: dropped frame from %s"
- " (unauthorized port)\n", rx->dev->name,
- print_mac(mac, hdr->addr2));
+ printk(KERN_DEBUG "%s: dropped frame "
+ "(unauthorized port)\n", rx->dev->name);
#endif /* CONFIG_MAC80211_DEBUG */
- return TXRX_DROP;
+ return -EACCES;
}
- return TXRX_CONTINUE;
+ return 0;
}
-static ieee80211_txrx_result
-ieee80211_rx_h_drop_unencrypted(struct ieee80211_txrx_data *rx)
+static int
+ieee80211_drop_unencrypted(struct ieee80211_txrx_data *rx)
{
/*
* Pass through unencrypted frames if the hardware has
* decrypted them already.
*/
if (rx->u.rx.status->flag & RX_FLAG_DECRYPTED)
- return TXRX_CONTINUE;
+ return 0;
/* Drop unencrypted frames if key is set. */
if (unlikely(!(rx->fc & IEEE80211_FCTL_PROTECTED) &&
(rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA &&
(rx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_NULLFUNC &&
- (rx->key || rx->sdata->drop_unencrypted) &&
- (rx->sdata->eapol == 0 || !ieee80211_is_eapol(rx->skb)))) {
+ (rx->key || rx->sdata->drop_unencrypted))) {
if (net_ratelimit())
printk(KERN_DEBUG "%s: RX non-WEP frame, but expected "
"encryption\n", rx->dev->name);
- return TXRX_DROP;
+ return -EACCES;
}
- return TXRX_CONTINUE;
+ return 0;
}
-static ieee80211_txrx_result
-ieee80211_rx_h_data(struct ieee80211_txrx_data *rx)
+static int
+ieee80211_data_to_8023(struct ieee80211_txrx_data *rx)
{
struct net_device *dev = rx->dev;
- struct ieee80211_local *local = rx->local;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data;
u16 fc, hdrlen, ethertype;
u8 *payload;
u8 dst[ETH_ALEN];
u8 src[ETH_ALEN];
- struct sk_buff *skb = rx->skb, *skb2;
+ struct sk_buff *skb = rx->skb;
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
DECLARE_MAC_BUF(mac);
DECLARE_MAC_BUF(mac2);
@@ -1025,11 +1036,9 @@ ieee80211_rx_h_data(struct ieee80211_txrx_data *rx)
DECLARE_MAC_BUF(mac4);
fc = rx->fc;
- if (unlikely((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA))
- return TXRX_CONTINUE;
if (unlikely(!WLAN_FC_DATA_PRESENT(fc)))
- return TXRX_DROP;
+ return -1;
hdrlen = ieee80211_get_hdrlen(fc);
@@ -1049,8 +1058,8 @@ ieee80211_rx_h_data(struct ieee80211_txrx_data *rx)
memcpy(dst, hdr->addr3, ETH_ALEN);
memcpy(src, hdr->addr2, ETH_ALEN);
- if (unlikely(sdata->type != IEEE80211_IF_TYPE_AP &&
- sdata->type != IEEE80211_IF_TYPE_VLAN)) {
+ if (unlikely(sdata->vif.type != IEEE80211_IF_TYPE_AP &&
+ sdata->vif.type != IEEE80211_IF_TYPE_VLAN)) {
if (net_ratelimit())
printk(KERN_DEBUG "%s: dropped ToDS frame "
"(BSSID=%s SA=%s DA=%s)\n",
@@ -1058,7 +1067,7 @@ ieee80211_rx_h_data(struct ieee80211_txrx_data *rx)
print_mac(mac, hdr->addr1),
print_mac(mac2, hdr->addr2),
print_mac(mac3, hdr->addr3));
- return TXRX_DROP;
+ return -1;
}
break;
case (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS):
@@ -1066,7 +1075,7 @@ ieee80211_rx_h_data(struct ieee80211_txrx_data *rx)
memcpy(dst, hdr->addr3, ETH_ALEN);
memcpy(src, hdr->addr4, ETH_ALEN);
- if (unlikely(sdata->type != IEEE80211_IF_TYPE_WDS)) {
+ if (unlikely(sdata->vif.type != IEEE80211_IF_TYPE_WDS)) {
if (net_ratelimit())
printk(KERN_DEBUG "%s: dropped FromDS&ToDS "
"frame (RA=%s TA=%s DA=%s SA=%s)\n",
@@ -1075,7 +1084,7 @@ ieee80211_rx_h_data(struct ieee80211_txrx_data *rx)
print_mac(mac2, hdr->addr2),
print_mac(mac3, hdr->addr3),
print_mac(mac4, hdr->addr4));
- return TXRX_DROP;
+ return -1;
}
break;
case IEEE80211_FCTL_FROMDS:
@@ -1083,17 +1092,17 @@ ieee80211_rx_h_data(struct ieee80211_txrx_data *rx)
memcpy(dst, hdr->addr1, ETH_ALEN);
memcpy(src, hdr->addr3, ETH_ALEN);
- if (sdata->type != IEEE80211_IF_TYPE_STA ||
+ if (sdata->vif.type != IEEE80211_IF_TYPE_STA ||
(is_multicast_ether_addr(dst) &&
!compare_ether_addr(src, dev->dev_addr)))
- return TXRX_DROP;
+ return -1;
break;
case 0:
/* DA SA BSSID */
memcpy(dst, hdr->addr1, ETH_ALEN);
memcpy(src, hdr->addr2, ETH_ALEN);
- if (sdata->type != IEEE80211_IF_TYPE_IBSS) {
+ if (sdata->vif.type != IEEE80211_IF_TYPE_IBSS) {
if (net_ratelimit()) {
printk(KERN_DEBUG "%s: dropped IBSS frame "
"(DA=%s SA=%s BSSID=%s)\n",
@@ -1102,21 +1111,20 @@ ieee80211_rx_h_data(struct ieee80211_txrx_data *rx)
print_mac(mac2, hdr->addr2),
print_mac(mac3, hdr->addr3));
}
- return TXRX_DROP;
+ return -1;
}
break;
}
- payload = skb->data + hdrlen;
-
if (unlikely(skb->len - hdrlen < 8)) {
if (net_ratelimit()) {
printk(KERN_DEBUG "%s: RX too short data frame "
"payload\n", dev->name);
}
- return TXRX_DROP;
+ return -1;
}
+ payload = skb->data + hdrlen;
ethertype = (payload[6] << 8) | payload[7];
if (likely((compare_ether_addr(payload, rfc1042_header) == 0 &&
@@ -1130,6 +1138,7 @@ ieee80211_rx_h_data(struct ieee80211_txrx_data *rx)
} else {
struct ethhdr *ehdr;
__be16 len;
+
skb_pull(skb, hdrlen);
len = htons(skb->len);
ehdr = (struct ethhdr *) skb_push(skb, sizeof(struct ethhdr));
@@ -1137,36 +1146,72 @@ ieee80211_rx_h_data(struct ieee80211_txrx_data *rx)
memcpy(ehdr->h_source, src, ETH_ALEN);
ehdr->h_proto = len;
}
- skb->dev = dev;
+ return 0;
+}
+
+/*
+ * requires that rx->skb is a frame with ethernet header
+ */
+static bool ieee80211_frame_allowed(struct ieee80211_txrx_data *rx)
+{
+ static const u8 pae_group_addr[ETH_ALEN]
+ = { 0x01, 0x80, 0xC2, 0x00, 0x00, 0x03 };
+ struct ethhdr *ehdr = (struct ethhdr *) rx->skb->data;
- skb2 = NULL;
+ /*
+ * Allow EAPOL frames to us/the PAE group address regardless
+ * of whether the frame was encrypted or not.
+ */
+ if (ehdr->h_proto == htons(ETH_P_PAE) &&
+ (compare_ether_addr(ehdr->h_dest, rx->dev->dev_addr) == 0 ||
+ compare_ether_addr(ehdr->h_dest, pae_group_addr) == 0))
+ return true;
- dev->stats.rx_packets++;
- dev->stats.rx_bytes += skb->len;
+ if (ieee80211_802_1x_port_control(rx) ||
+ ieee80211_drop_unencrypted(rx))
+ return false;
+
+ return true;
+}
- if (local->bridge_packets && (sdata->type == IEEE80211_IF_TYPE_AP
- || sdata->type == IEEE80211_IF_TYPE_VLAN) &&
+/*
+ * requires that rx->skb is a frame with ethernet header
+ */
+static void
+ieee80211_deliver_skb(struct ieee80211_txrx_data *rx)
+{
+ struct net_device *dev = rx->dev;
+ struct ieee80211_local *local = rx->local;
+ struct sk_buff *skb, *xmit_skb;
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct ethhdr *ehdr = (struct ethhdr *) rx->skb->data;
+ struct sta_info *dsta;
+
+ skb = rx->skb;
+ xmit_skb = NULL;
+
+ if (local->bridge_packets && (sdata->vif.type == IEEE80211_IF_TYPE_AP ||
+ sdata->vif.type == IEEE80211_IF_TYPE_VLAN) &&
(rx->flags & IEEE80211_TXRXD_RXRA_MATCH)) {
- if (is_multicast_ether_addr(skb->data)) {
- /* send multicast frames both to higher layers in
- * local net stack and back to the wireless media */
- skb2 = skb_copy(skb, GFP_ATOMIC);
- if (!skb2 && net_ratelimit())
+ if (is_multicast_ether_addr(ehdr->h_dest)) {
+ /*
+ * send multicast frames both to higher layers in
+ * local net stack and back to the wireless medium
+ */
+ xmit_skb = skb_copy(skb, GFP_ATOMIC);
+ if (!xmit_skb && net_ratelimit())
printk(KERN_DEBUG "%s: failed to clone "
"multicast frame\n", dev->name);
} else {
- struct sta_info *dsta;
dsta = sta_info_get(local, skb->data);
- if (dsta && !dsta->dev) {
- if (net_ratelimit())
- printk(KERN_DEBUG "Station with null "
- "dev structure!\n");
- } else if (dsta && dsta->dev == dev) {
- /* Destination station is associated to this
- * AP, so send the frame directly to it and
- * do not pass the frame to local net stack.
+ if (dsta && dsta->dev == dev) {
+ /*
+ * The destination station is associated to
+ * this AP (in this VLAN), so send the frame
+ * directly to it and do not pass it to local
+ * net stack.
*/
- skb2 = skb;
+ xmit_skb = skb;
skb = NULL;
}
if (dsta)
@@ -1181,18 +1226,207 @@ ieee80211_rx_h_data(struct ieee80211_txrx_data *rx)
netif_rx(skb);
}
- if (skb2) {
+ if (xmit_skb) {
/* send to wireless media */
- skb2->protocol = __constant_htons(ETH_P_802_3);
- skb_set_network_header(skb2, 0);
- skb_set_mac_header(skb2, 0);
- dev_queue_xmit(skb2);
+ xmit_skb->protocol = htons(ETH_P_802_3);
+ skb_reset_network_header(xmit_skb);
+ skb_reset_mac_header(xmit_skb);
+ dev_queue_xmit(xmit_skb);
}
+}
+
+static ieee80211_txrx_result
+ieee80211_rx_h_amsdu(struct ieee80211_txrx_data *rx)
+{
+ struct net_device *dev = rx->dev;
+ struct ieee80211_local *local = rx->local;
+ u16 fc, ethertype;
+ u8 *payload;
+ struct sk_buff *skb = rx->skb, *frame = NULL;
+ const struct ethhdr *eth;
+ int remaining, err;
+ u8 dst[ETH_ALEN];
+ u8 src[ETH_ALEN];
+ DECLARE_MAC_BUF(mac);
+
+ fc = rx->fc;
+ if (unlikely((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA))
+ return TXRX_CONTINUE;
+
+ if (unlikely(!WLAN_FC_DATA_PRESENT(fc)))
+ return TXRX_DROP;
+
+ if (!(rx->flags & IEEE80211_TXRXD_RX_AMSDU))
+ return TXRX_CONTINUE;
+
+ err = ieee80211_data_to_8023(rx);
+ if (unlikely(err))
+ return TXRX_DROP;
+
+ skb->dev = dev;
+
+ dev->stats.rx_packets++;
+ dev->stats.rx_bytes += skb->len;
+
+ /* skip the wrapping header */
+ eth = (struct ethhdr *) skb_pull(skb, sizeof(struct ethhdr));
+ if (!eth)
+ return TXRX_DROP;
+
+ while (skb != frame) {
+ u8 padding;
+ __be16 len = eth->h_proto;
+ unsigned int subframe_len = sizeof(struct ethhdr) + ntohs(len);
+
+ remaining = skb->len;
+ memcpy(dst, eth->h_dest, ETH_ALEN);
+ memcpy(src, eth->h_source, ETH_ALEN);
+
+ padding = ((4 - subframe_len) & 0x3);
+ /* the last MSDU has no padding */
+ if (subframe_len > remaining) {
+ printk(KERN_DEBUG "%s: wrong buffer size", dev->name);
+ return TXRX_DROP;
+ }
+
+ skb_pull(skb, sizeof(struct ethhdr));
+ /* if last subframe reuse skb */
+ if (remaining <= subframe_len + padding)
+ frame = skb;
+ else {
+ frame = dev_alloc_skb(local->hw.extra_tx_headroom +
+ subframe_len);
+
+ if (frame == NULL)
+ return TXRX_DROP;
+
+ skb_reserve(frame, local->hw.extra_tx_headroom +
+ sizeof(struct ethhdr));
+ memcpy(skb_put(frame, ntohs(len)), skb->data,
+ ntohs(len));
+
+ eth = (struct ethhdr *) skb_pull(skb, ntohs(len) +
+ padding);
+ if (!eth) {
+ printk(KERN_DEBUG "%s: wrong buffer size ",
+ dev->name);
+ dev_kfree_skb(frame);
+ return TXRX_DROP;
+ }
+ }
+
+ skb_reset_network_header(frame);
+ frame->dev = dev;
+ frame->priority = skb->priority;
+ rx->skb = frame;
+
+ payload = frame->data;
+ ethertype = (payload[6] << 8) | payload[7];
+
+ if (likely((compare_ether_addr(payload, rfc1042_header) == 0 &&
+ ethertype != ETH_P_AARP && ethertype != ETH_P_IPX) ||
+ compare_ether_addr(payload,
+ bridge_tunnel_header) == 0)) {
+ /* remove RFC1042 or Bridge-Tunnel
+ * encapsulation and replace EtherType */
+ skb_pull(frame, 6);
+ memcpy(skb_push(frame, ETH_ALEN), src, ETH_ALEN);
+ memcpy(skb_push(frame, ETH_ALEN), dst, ETH_ALEN);
+ } else {
+ memcpy(skb_push(frame, sizeof(__be16)),
+ &len, sizeof(__be16));
+ memcpy(skb_push(frame, ETH_ALEN), src, ETH_ALEN);
+ memcpy(skb_push(frame, ETH_ALEN), dst, ETH_ALEN);
+ }
+
+ if (!ieee80211_frame_allowed(rx)) {
+ if (skb == frame) /* last frame */
+ return TXRX_DROP;
+ dev_kfree_skb(frame);
+ continue;
+ }
+
+ ieee80211_deliver_skb(rx);
+ }
+
+ return TXRX_QUEUED;
+}
+
+static ieee80211_txrx_result
+ieee80211_rx_h_data(struct ieee80211_txrx_data *rx)
+{
+ struct net_device *dev = rx->dev;
+ u16 fc;
+ int err;
+
+ fc = rx->fc;
+ if (unlikely((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA))
+ return TXRX_CONTINUE;
+
+ if (unlikely(!WLAN_FC_DATA_PRESENT(fc)))
+ return TXRX_DROP;
+
+ err = ieee80211_data_to_8023(rx);
+ if (unlikely(err))
+ return TXRX_DROP;
+
+ if (!ieee80211_frame_allowed(rx))
+ return TXRX_DROP;
+
+ rx->skb->dev = dev;
+
+ dev->stats.rx_packets++;
+ dev->stats.rx_bytes += rx->skb->len;
+
+ ieee80211_deliver_skb(rx);
return TXRX_QUEUED;
}
static ieee80211_txrx_result
+ieee80211_rx_h_ctrl(struct ieee80211_txrx_data *rx)
+{
+ struct ieee80211_local *local = rx->local;
+ struct ieee80211_hw *hw = &local->hw;
+ struct sk_buff *skb = rx->skb;
+ struct ieee80211_bar *bar = (struct ieee80211_bar *) skb->data;
+ struct tid_ampdu_rx *tid_agg_rx;
+ u16 start_seq_num;
+ u16 tid;
+
+ if (likely((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_CTL))
+ return TXRX_CONTINUE;
+
+ if ((rx->fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_BACK_REQ) {
+ if (!rx->sta)
+ return TXRX_CONTINUE;
+ tid = le16_to_cpu(bar->control) >> 12;
+ tid_agg_rx = &(rx->sta->ampdu_mlme.tid_rx[tid]);
+ if (tid_agg_rx->state != HT_AGG_STATE_OPERATIONAL)
+ return TXRX_CONTINUE;
+
+ start_seq_num = le16_to_cpu(bar->start_seq_num) >> 4;
+
+ /* reset session timer */
+ if (tid_agg_rx->timeout) {
+ unsigned long expires =
+ jiffies + (tid_agg_rx->timeout / 1000) * HZ;
+ mod_timer(&tid_agg_rx->session_timer, expires);
+ }
+
+ /* manage reordering buffer according to requested */
+ /* sequence number */
+ rcu_read_lock();
+ ieee80211_sta_manage_reorder_buf(hw, tid_agg_rx, NULL,
+ start_seq_num, 1);
+ rcu_read_unlock();
+ return TXRX_DROP;
+ }
+
+ return TXRX_CONTINUE;
+}
+
+static ieee80211_txrx_result
ieee80211_rx_h_mgmt(struct ieee80211_txrx_data *rx)
{
struct ieee80211_sub_if_data *sdata;
@@ -1201,8 +1435,8 @@ ieee80211_rx_h_mgmt(struct ieee80211_txrx_data *rx)
return TXRX_DROP;
sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev);
- if ((sdata->type == IEEE80211_IF_TYPE_STA ||
- sdata->type == IEEE80211_IF_TYPE_IBSS) &&
+ if ((sdata->vif.type == IEEE80211_IF_TYPE_STA ||
+ sdata->vif.type == IEEE80211_IF_TYPE_IBSS) &&
!(sdata->flags & IEEE80211_SDATA_USERSPACE_MLME))
ieee80211_sta_rx_mgmt(rx->dev, rx->skb, rx->u.rx.status);
else
@@ -1294,7 +1528,7 @@ static void ieee80211_rx_michael_mic_report(struct net_device *dev,
goto ignore;
}
- if (rx->sdata->type == IEEE80211_IF_TYPE_AP && keyidx) {
+ if (rx->sdata->vif.type == IEEE80211_IF_TYPE_AP && keyidx) {
/*
* APs with pairwise keys should never receive Michael MIC
* errors for non-zero keyidx because these are reserved for
@@ -1341,9 +1575,9 @@ ieee80211_rx_handler ieee80211_rx_handlers[] =
* are not passed to user space by these functions
*/
ieee80211_rx_h_remove_qos_control,
- ieee80211_rx_h_802_1x_pae,
- ieee80211_rx_h_drop_unencrypted,
+ ieee80211_rx_h_amsdu,
ieee80211_rx_h_data,
+ ieee80211_rx_h_ctrl,
ieee80211_rx_h_mgmt,
NULL
};
@@ -1356,7 +1590,7 @@ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
{
int multicast = is_multicast_ether_addr(hdr->addr1);
- switch (sdata->type) {
+ switch (sdata->vif.type) {
case IEEE80211_IF_TYPE_STA:
if (!bssid)
return 0;
@@ -1427,11 +1661,13 @@ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
}
/*
- * This is the receive path handler. It is called by a low level driver when an
- * 802.11 MPDU is received from the hardware.
+ * This is the actual Rx frames handler. as it blongs to Rx path it must
+ * be called with rcu_read_lock protection.
*/
-void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb,
- struct ieee80211_rx_status *status)
+static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw,
+ struct sk_buff *skb,
+ struct ieee80211_rx_status *status,
+ u32 load)
{
struct ieee80211_local *local = hw_to_local(hw);
struct ieee80211_sub_if_data *sdata;
@@ -1439,37 +1675,19 @@ void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb,
struct ieee80211_hdr *hdr;
struct ieee80211_txrx_data rx;
u16 type;
- int prepres;
+ int prepares;
struct ieee80211_sub_if_data *prev = NULL;
struct sk_buff *skb_new;
u8 *bssid;
int hdrlen;
- /*
- * key references and virtual interfaces are protected using RCU
- * and this requires that we are in a read-side RCU section during
- * receive processing
- */
- rcu_read_lock();
-
- /*
- * Frames with failed FCS/PLCP checksum are not returned,
- * all other frames are returned without radiotap header
- * if it was previously present.
- * Also, frames with less than 16 bytes are dropped.
- */
- skb = ieee80211_rx_monitor(local, skb, status);
- if (!skb) {
- rcu_read_unlock();
- return;
- }
-
hdr = (struct ieee80211_hdr *) skb->data;
memset(&rx, 0, sizeof(rx));
rx.skb = skb;
rx.local = local;
rx.u.rx.status = status;
+ rx.u.rx.load = load;
rx.fc = le16_to_cpu(hdr->frame_control);
type = rx.fc & IEEE80211_FCTL_FTYPE;
@@ -1499,7 +1717,7 @@ void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb,
goto end;
}
- if (unlikely(local->sta_scanning))
+ if (unlikely(local->sta_sw_scanning || local->sta_hw_scanning))
rx.flags |= IEEE80211_TXRXD_RXIN_SCAN;
if (__ieee80211_invoke_rx_handlers(local, local->rx_pre_handlers, &rx,
@@ -1514,25 +1732,23 @@ void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb,
ieee80211_invoke_rx_handlers(local, local->rx_handlers, &rx,
rx.sta);
sta_info_put(sta);
- rcu_read_unlock();
return;
}
- bssid = ieee80211_get_bssid(hdr, skb->len);
-
list_for_each_entry_rcu(sdata, &local->interfaces, list) {
if (!netif_running(sdata->dev))
continue;
- if (sdata->type == IEEE80211_IF_TYPE_MNTR)
+ if (sdata->vif.type == IEEE80211_IF_TYPE_MNTR)
continue;
+ bssid = ieee80211_get_bssid(hdr, skb->len, sdata->vif.type);
rx.flags |= IEEE80211_TXRXD_RXRA_MATCH;
- prepres = prepare_for_handlers(sdata, bssid, &rx, hdr);
+ prepares = prepare_for_handlers(sdata, bssid, &rx, hdr);
/* prepare_for_handlers can change sta */
sta = rx.sta;
- if (!prepres)
+ if (!prepares)
continue;
/*
@@ -1560,6 +1776,7 @@ void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb,
prev->dev->name);
continue;
}
+ rx.fc = le16_to_cpu(hdr->frame_control);
rx.skb = skb_new;
rx.dev = prev->dev;
rx.sdata = prev;
@@ -1568,6 +1785,7 @@ void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb,
prev = sdata;
}
if (prev) {
+ rx.fc = le16_to_cpu(hdr->frame_control);
rx.skb = skb;
rx.dev = prev->dev;
rx.sdata = prev;
@@ -1577,10 +1795,230 @@ void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb,
dev_kfree_skb(skb);
end:
- rcu_read_unlock();
+ if (sta)
+ sta_info_put(sta);
+}
+
+#define SEQ_MODULO 0x1000
+#define SEQ_MASK 0xfff
+
+static inline int seq_less(u16 sq1, u16 sq2)
+{
+ return (((sq1 - sq2) & SEQ_MASK) > (SEQ_MODULO >> 1));
+}
+
+static inline u16 seq_inc(u16 sq)
+{
+ return ((sq + 1) & SEQ_MASK);
+}
+
+static inline u16 seq_sub(u16 sq1, u16 sq2)
+{
+ return ((sq1 - sq2) & SEQ_MASK);
+}
+
+
+/*
+ * As it function blongs to Rx path it must be called with
+ * the proper rcu_read_lock protection for its flow.
+ */
+u8 ieee80211_sta_manage_reorder_buf(struct ieee80211_hw *hw,
+ struct tid_ampdu_rx *tid_agg_rx,
+ struct sk_buff *skb, u16 mpdu_seq_num,
+ int bar_req)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ struct ieee80211_rx_status status;
+ u16 head_seq_num, buf_size;
+ int index;
+ u32 pkt_load;
+
+ buf_size = tid_agg_rx->buf_size;
+ head_seq_num = tid_agg_rx->head_seq_num;
+
+ /* frame with out of date sequence number */
+ if (seq_less(mpdu_seq_num, head_seq_num)) {
+ dev_kfree_skb(skb);
+ return 1;
+ }
+
+ /* if frame sequence number exceeds our buffering window size or
+ * block Ack Request arrived - release stored frames */
+ if ((!seq_less(mpdu_seq_num, head_seq_num + buf_size)) || (bar_req)) {
+ /* new head to the ordering buffer */
+ if (bar_req)
+ head_seq_num = mpdu_seq_num;
+ else
+ head_seq_num =
+ seq_inc(seq_sub(mpdu_seq_num, buf_size));
+ /* release stored frames up to new head to stack */
+ while (seq_less(tid_agg_rx->head_seq_num, head_seq_num)) {
+ index = seq_sub(tid_agg_rx->head_seq_num,
+ tid_agg_rx->ssn)
+ % tid_agg_rx->buf_size;
+
+ if (tid_agg_rx->reorder_buf[index]) {
+ /* release the reordered frames to stack */
+ memcpy(&status,
+ tid_agg_rx->reorder_buf[index]->cb,
+ sizeof(status));
+ pkt_load = ieee80211_rx_load_stats(local,
+ tid_agg_rx->reorder_buf[index],
+ &status);
+ __ieee80211_rx_handle_packet(hw,
+ tid_agg_rx->reorder_buf[index],
+ &status, pkt_load);
+ tid_agg_rx->stored_mpdu_num--;
+ tid_agg_rx->reorder_buf[index] = NULL;
+ }
+ tid_agg_rx->head_seq_num =
+ seq_inc(tid_agg_rx->head_seq_num);
+ }
+ if (bar_req)
+ return 1;
+ }
+
+ /* now the new frame is always in the range of the reordering */
+ /* buffer window */
+ index = seq_sub(mpdu_seq_num, tid_agg_rx->ssn)
+ % tid_agg_rx->buf_size;
+ /* check if we already stored this frame */
+ if (tid_agg_rx->reorder_buf[index]) {
+ dev_kfree_skb(skb);
+ return 1;
+ }
+
+ /* if arrived mpdu is in the right order and nothing else stored */
+ /* release it immediately */
+ if (mpdu_seq_num == tid_agg_rx->head_seq_num &&
+ tid_agg_rx->stored_mpdu_num == 0) {
+ tid_agg_rx->head_seq_num =
+ seq_inc(tid_agg_rx->head_seq_num);
+ return 0;
+ }
+
+ /* put the frame in the reordering buffer */
+ tid_agg_rx->reorder_buf[index] = skb;
+ tid_agg_rx->stored_mpdu_num++;
+ /* release the buffer until next missing frame */
+ index = seq_sub(tid_agg_rx->head_seq_num, tid_agg_rx->ssn)
+ % tid_agg_rx->buf_size;
+ while (tid_agg_rx->reorder_buf[index]) {
+ /* release the reordered frame back to stack */
+ memcpy(&status, tid_agg_rx->reorder_buf[index]->cb,
+ sizeof(status));
+ pkt_load = ieee80211_rx_load_stats(local,
+ tid_agg_rx->reorder_buf[index],
+ &status);
+ __ieee80211_rx_handle_packet(hw, tid_agg_rx->reorder_buf[index],
+ &status, pkt_load);
+ tid_agg_rx->stored_mpdu_num--;
+ tid_agg_rx->reorder_buf[index] = NULL;
+ tid_agg_rx->head_seq_num = seq_inc(tid_agg_rx->head_seq_num);
+ index = seq_sub(tid_agg_rx->head_seq_num,
+ tid_agg_rx->ssn) % tid_agg_rx->buf_size;
+ }
+ return 1;
+}
+
+static u8 ieee80211_rx_reorder_ampdu(struct ieee80211_local *local,
+ struct sk_buff *skb)
+{
+ struct ieee80211_hw *hw = &local->hw;
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ struct sta_info *sta;
+ struct tid_ampdu_rx *tid_agg_rx;
+ u16 fc, sc;
+ u16 mpdu_seq_num;
+ u8 ret = 0, *qc;
+ int tid;
+
+ sta = sta_info_get(local, hdr->addr2);
+ if (!sta)
+ return ret;
+
+ fc = le16_to_cpu(hdr->frame_control);
+
+ /* filter the QoS data rx stream according to
+ * STA/TID and check if this STA/TID is on aggregation */
+ if (!WLAN_FC_IS_QOS_DATA(fc))
+ goto end_reorder;
+
+ qc = skb->data + ieee80211_get_hdrlen(fc) - QOS_CONTROL_LEN;
+ tid = qc[0] & QOS_CONTROL_TID_MASK;
+ tid_agg_rx = &(sta->ampdu_mlme.tid_rx[tid]);
+
+ if (tid_agg_rx->state != HT_AGG_STATE_OPERATIONAL)
+ goto end_reorder;
+
+ /* null data frames are excluded */
+ if (unlikely(fc & IEEE80211_STYPE_QOS_NULLFUNC))
+ goto end_reorder;
+
+ /* new un-ordered ampdu frame - process it */
+
+ /* reset session timer */
+ if (tid_agg_rx->timeout) {
+ unsigned long expires =
+ jiffies + (tid_agg_rx->timeout / 1000) * HZ;
+ mod_timer(&tid_agg_rx->session_timer, expires);
+ }
+
+ /* if this mpdu is fragmented - terminate rx aggregation session */
+ sc = le16_to_cpu(hdr->seq_ctrl);
+ if (sc & IEEE80211_SCTL_FRAG) {
+ ieee80211_sta_stop_rx_ba_session(sta->dev, sta->addr,
+ tid, 0, WLAN_REASON_QSTA_REQUIRE_SETUP);
+ ret = 1;
+ goto end_reorder;
+ }
+ /* according to mpdu sequence number deal with reordering buffer */
+ mpdu_seq_num = (sc & IEEE80211_SCTL_SEQ) >> 4;
+ ret = ieee80211_sta_manage_reorder_buf(hw, tid_agg_rx, skb,
+ mpdu_seq_num, 0);
+end_reorder:
if (sta)
sta_info_put(sta);
+ return ret;
+}
+
+/*
+ * This is the receive path handler. It is called by a low level driver when an
+ * 802.11 MPDU is received from the hardware.
+ */
+void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb,
+ struct ieee80211_rx_status *status)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ u32 pkt_load;
+
+ /*
+ * key references and virtual interfaces are protected using RCU
+ * and this requires that we are in a read-side RCU section during
+ * receive processing
+ */
+ rcu_read_lock();
+
+ /*
+ * Frames with failed FCS/PLCP checksum are not returned,
+ * all other frames are returned without radiotap header
+ * if it was previously present.
+ * Also, frames with less than 16 bytes are dropped.
+ */
+ skb = ieee80211_rx_monitor(local, skb, status);
+ if (!skb) {
+ rcu_read_unlock();
+ return;
+ }
+
+ pkt_load = ieee80211_rx_load_stats(local, skb, status);
+ local->channel_use_raw += pkt_load;
+
+ if (!ieee80211_rx_reorder_ampdu(local, skb))
+ __ieee80211_rx_handle_packet(hw, skb, status, pkt_load);
+
+ rcu_read_unlock();
}
EXPORT_SYMBOL(__ieee80211_rx);
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index cfd8ee9adad0..1f74bd296357 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -104,6 +104,7 @@ static void sta_info_release(struct kref *kref)
struct sta_info *sta = container_of(kref, struct sta_info, kref);
struct ieee80211_local *local = sta->local;
struct sk_buff *skb;
+ int i;
/* free sta structure; it has already been removed from
* hash table etc. external structures. Make sure that all
@@ -116,6 +117,8 @@ static void sta_info_release(struct kref *kref)
while ((skb = skb_dequeue(&sta->tx_filtered)) != NULL) {
dev_kfree_skb_any(skb);
}
+ for (i = 0; i < STA_TID_NUM; i++)
+ del_timer_sync(&sta->ampdu_mlme.tid_rx[i].session_timer);
rate_control_free_sta(sta->rate_ctrl, sta->rate_ctrl_priv);
rate_control_put(sta->rate_ctrl);
kfree(sta);
@@ -133,6 +136,7 @@ struct sta_info * sta_info_add(struct ieee80211_local *local,
struct net_device *dev, u8 *addr, gfp_t gfp)
{
struct sta_info *sta;
+ int i;
DECLARE_MAC_BUF(mac);
sta = kzalloc(sizeof(*sta), gfp);
@@ -152,6 +156,19 @@ struct sta_info * sta_info_add(struct ieee80211_local *local,
memcpy(sta->addr, addr, ETH_ALEN);
sta->local = local;
sta->dev = dev;
+ spin_lock_init(&sta->ampdu_mlme.ampdu_rx);
+ for (i = 0; i < STA_TID_NUM; i++) {
+ /* timer_to_tid must be initialized with identity mapping to
+ * enable session_timer's data differentiation. refer to
+ * sta_rx_agg_session_timer_expired for useage */
+ sta->timer_to_tid[i] = i;
+ /* rx timers */
+ sta->ampdu_mlme.tid_rx[i].session_timer.function =
+ sta_rx_agg_session_timer_expired;
+ sta->ampdu_mlme.tid_rx[i].session_timer.data =
+ (unsigned long)&sta->timer_to_tid[i];
+ init_timer(&sta->ampdu_mlme.tid_rx[i].session_timer);
+ }
skb_queue_head_init(&sta->ps_tx_buf);
skb_queue_head_init(&sta->tx_filtered);
__sta_info_get(sta); /* sta used by caller, decremented by
@@ -160,9 +177,16 @@ struct sta_info * sta_info_add(struct ieee80211_local *local,
list_add(&sta->list, &local->sta_list);
local->num_sta++;
sta_info_hash_add(local, sta);
- if (local->ops->sta_notify)
- local->ops->sta_notify(local_to_hw(local), dev->ifindex,
- STA_NOTIFY_ADD, addr);
+ if (local->ops->sta_notify) {
+ struct ieee80211_sub_if_data *sdata;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN)
+ sdata = sdata->u.vlan.ap;
+
+ local->ops->sta_notify(local_to_hw(local), &sdata->vif,
+ STA_NOTIFY_ADD, addr);
+ }
write_unlock_bh(&local->sta_lock);
#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
@@ -230,9 +254,17 @@ void sta_info_free(struct sta_info *sta)
ieee80211_key_free(sta->key);
sta->key = NULL;
- if (local->ops->sta_notify)
- local->ops->sta_notify(local_to_hw(local), sta->dev->ifindex,
- STA_NOTIFY_REMOVE, sta->addr);
+ if (local->ops->sta_notify) {
+ struct ieee80211_sub_if_data *sdata;
+
+ sdata = IEEE80211_DEV_TO_SUB_IF(sta->dev);
+
+ if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN)
+ sdata = sdata->u.vlan.ap;
+
+ local->ops->sta_notify(local_to_hw(local), &sdata->vif,
+ STA_NOTIFY_REMOVE, sta->addr);
+ }
rate_control_remove_sta_debugfs(sta);
ieee80211_sta_debugfs_remove(sta);
@@ -346,11 +378,10 @@ void sta_info_init(struct ieee80211_local *local)
rwlock_init(&local->sta_lock);
INIT_LIST_HEAD(&local->sta_list);
- init_timer(&local->sta_cleanup);
+ setup_timer(&local->sta_cleanup, sta_info_cleanup,
+ (unsigned long)local);
local->sta_cleanup.expires =
round_jiffies(jiffies + STA_INFO_CLEANUP_INTERVAL);
- local->sta_cleanup.data = (unsigned long) local;
- local->sta_cleanup.function = sta_info_cleanup;
#ifdef CONFIG_MAC80211_DEBUGFS
INIT_WORK(&local->sta_debugfs_add, sta_info_debugfs_add_task);
diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h
index 8f7ebe41c024..96fe3ed95038 100644
--- a/net/mac80211/sta_info.h
+++ b/net/mac80211/sta_info.h
@@ -31,6 +31,51 @@
#define WLAN_STA_WME BIT(9)
#define WLAN_STA_WDS BIT(27)
+#define STA_TID_NUM 16
+#define ADDBA_RESP_INTERVAL HZ
+
+#define HT_AGG_STATE_INITIATOR_SHIFT (4)
+
+#define HT_AGG_STATE_REQ_STOP_BA_MSK BIT(3)
+
+#define HT_AGG_STATE_IDLE (0x0)
+#define HT_AGG_STATE_OPERATIONAL (0x7)
+
+/**
+ * struct tid_ampdu_rx - TID aggregation information (Rx).
+ *
+ * @state: TID's state in session state machine.
+ * @dialog_token: dialog token for aggregation session
+ * @ssn: Starting Sequence Number expected to be aggregated.
+ * @buf_size: buffer size for incoming A-MPDUs
+ * @timeout: reset timer value.
+ * @head_seq_num: head sequence number in reordering buffer.
+ * @stored_mpdu_num: number of MPDUs in reordering buffer
+ * @reorder_buf: buffer to reorder incoming aggregated MPDUs
+ * @session_timer: check if peer keeps Tx-ing on the TID (by timeout value)
+ */
+struct tid_ampdu_rx {
+ u8 state;
+ u8 dialog_token;
+ u16 ssn;
+ u16 buf_size;
+ u16 timeout;
+ u16 head_seq_num;
+ u16 stored_mpdu_num;
+ struct sk_buff **reorder_buf;
+ struct timer_list session_timer;
+};
+
+/**
+ * struct sta_ampdu_mlme - STA aggregation information.
+ *
+ * @tid_agg_info_rx: aggregation info for Rx per TID
+ * @ampdu_rx: for locking sections in aggregation Rx flow
+ */
+struct sta_ampdu_mlme {
+ struct tid_ampdu_rx tid_rx[STA_TID_NUM];
+ spinlock_t ampdu_rx;
+};
struct sta_info {
struct kref kref;
@@ -99,6 +144,11 @@ struct sta_info {
u16 listen_interval;
+ struct ieee80211_ht_info ht_info; /* 802.11n HT capabilities
+ of this STA */
+ struct sta_ampdu_mlme ampdu_mlme;
+ u8 timer_to_tid[STA_TID_NUM]; /* convert timer id to tid */
+
#ifdef CONFIG_MAC80211_DEBUGFS
struct sta_info_debugfsdentries {
struct dentry *dir;
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 1a531543bccb..67b509edd431 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -176,7 +176,7 @@ static u16 ieee80211_duration(struct ieee80211_txrx_data *tx, int group_addr,
* to closest integer */
dur = ieee80211_frame_duration(local, 10, rate, erp,
- tx->sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE);
+ tx->sdata->bss_conf.use_short_preamble);
if (next_frag_len) {
/* Frame is fragmented: duration increases with time needed to
@@ -185,8 +185,7 @@ static u16 ieee80211_duration(struct ieee80211_txrx_data *tx, int group_addr,
/* next fragment */
dur += ieee80211_frame_duration(local, next_frag_len,
txrate->rate, erp,
- tx->sdata->flags &
- IEEE80211_SDATA_SHORT_PREAMBLE);
+ tx->sdata->bss_conf.use_short_preamble);
}
return dur;
@@ -225,7 +224,7 @@ ieee80211_tx_h_check_assoc(struct ieee80211_txrx_data *tx)
if (unlikely(tx->flags & IEEE80211_TXRXD_TX_INJECTED))
return TXRX_CONTINUE;
- if (unlikely(tx->local->sta_scanning != 0) &&
+ if (unlikely(tx->local->sta_sw_scanning) &&
((tx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT ||
(tx->fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_PROBE_REQ))
return TXRX_DROP;
@@ -237,7 +236,7 @@ ieee80211_tx_h_check_assoc(struct ieee80211_txrx_data *tx)
if (likely(tx->flags & IEEE80211_TXRXD_TXUNICAST)) {
if (unlikely(!(sta_flags & WLAN_STA_ASSOC) &&
- tx->sdata->type != IEEE80211_IF_TYPE_IBSS &&
+ tx->sdata->vif.type != IEEE80211_IF_TYPE_IBSS &&
(tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA)) {
#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
DECLARE_MAC_BUF(mac);
@@ -251,7 +250,7 @@ ieee80211_tx_h_check_assoc(struct ieee80211_txrx_data *tx)
} else {
if (unlikely((tx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA &&
tx->local->num_sta == 0 &&
- tx->sdata->type != IEEE80211_IF_TYPE_IBSS)) {
+ tx->sdata->vif.type != IEEE80211_IF_TYPE_IBSS)) {
/*
* No associated STAs - no need to send multicast
* frames.
@@ -261,18 +260,6 @@ ieee80211_tx_h_check_assoc(struct ieee80211_txrx_data *tx)
return TXRX_CONTINUE;
}
- if (unlikely(/* !injected && */ tx->sdata->ieee802_1x &&
- !(sta_flags & WLAN_STA_AUTHORIZED))) {
-#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
- DECLARE_MAC_BUF(mac);
- printk(KERN_DEBUG "%s: dropped frame to %s"
- " (unauthorized port)\n", tx->dev->name,
- print_mac(mac, hdr->addr1));
-#endif
- I802_DEBUG_INC(tx->local->tx_handlers_drop_unauth_port);
- return TXRX_DROP;
- }
-
return TXRX_CONTINUE;
}
@@ -306,7 +293,7 @@ static void purge_old_ps_buffers(struct ieee80211_local *local)
list_for_each_entry_rcu(sdata, &local->interfaces, list) {
struct ieee80211_if_ap *ap;
if (sdata->dev == local->mdev ||
- sdata->type != IEEE80211_IF_TYPE_AP)
+ sdata->vif.type != IEEE80211_IF_TYPE_AP)
continue;
ap = &sdata->u.ap;
skb = skb_dequeue(&ap->ps_bc_buf);
@@ -334,16 +321,27 @@ static void purge_old_ps_buffers(struct ieee80211_local *local)
wiphy_name(local->hw.wiphy), purged);
}
-static inline ieee80211_txrx_result
+static ieee80211_txrx_result
ieee80211_tx_h_multicast_ps_buf(struct ieee80211_txrx_data *tx)
{
- /* broadcast/multicast frame */
- /* If any of the associated stations is in power save mode,
- * the frame is buffered to be sent after DTIM beacon frame */
- if ((tx->local->hw.flags & IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING) &&
- tx->sdata->type != IEEE80211_IF_TYPE_WDS &&
- tx->sdata->bss && atomic_read(&tx->sdata->bss->num_sta_ps) &&
- !(tx->fc & IEEE80211_FCTL_ORDER)) {
+ /*
+ * broadcast/multicast frame
+ *
+ * If any of the associated stations is in power save mode,
+ * the frame is buffered to be sent after DTIM beacon frame.
+ * This is done either by the hardware or us.
+ */
+
+ /* not AP/IBSS or ordered frame */
+ if (!tx->sdata->bss || (tx->fc & IEEE80211_FCTL_ORDER))
+ return TXRX_CONTINUE;
+
+ /* no stations in PS mode */
+ if (!atomic_read(&tx->sdata->bss->num_sta_ps))
+ return TXRX_CONTINUE;
+
+ /* buffered in mac80211 */
+ if (tx->local->hw.flags & IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING) {
if (tx->local->total_ps_buffered >= TOTAL_MAX_TX_BUFFER)
purge_old_ps_buffers(tx->local);
if (skb_queue_len(&tx->sdata->bss->ps_bc_buf) >=
@@ -360,10 +358,13 @@ ieee80211_tx_h_multicast_ps_buf(struct ieee80211_txrx_data *tx)
return TXRX_QUEUED;
}
+ /* buffered in hardware */
+ tx->u.tx.control->flags |= IEEE80211_TXCTL_SEND_AFTER_DTIM;
+
return TXRX_CONTINUE;
}
-static inline ieee80211_txrx_result
+static ieee80211_txrx_result
ieee80211_tx_h_unicast_ps_buf(struct ieee80211_txrx_data *tx)
{
struct sta_info *sta = tx->sta;
@@ -420,7 +421,6 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_txrx_data *tx)
return TXRX_CONTINUE;
}
-
static ieee80211_txrx_result
ieee80211_tx_h_ps_buf(struct ieee80211_txrx_data *tx)
{
@@ -433,13 +433,11 @@ ieee80211_tx_h_ps_buf(struct ieee80211_txrx_data *tx)
return ieee80211_tx_h_multicast_ps_buf(tx);
}
-
-
-
static ieee80211_txrx_result
ieee80211_tx_h_select_key(struct ieee80211_txrx_data *tx)
{
struct ieee80211_key *key;
+ u16 fc = tx->fc;
if (unlikely(tx->u.tx.control->flags & IEEE80211_TXCTL_DO_NOT_ENCRYPT))
tx->key = NULL;
@@ -448,19 +446,38 @@ ieee80211_tx_h_select_key(struct ieee80211_txrx_data *tx)
else if ((key = rcu_dereference(tx->sdata->default_key)))
tx->key = key;
else if (tx->sdata->drop_unencrypted &&
- !(tx->sdata->eapol && ieee80211_is_eapol(tx->skb))) {
+ !(tx->u.tx.control->flags & IEEE80211_TXCTL_EAPOL_FRAME) &&
+ !(tx->flags & IEEE80211_TXRXD_TX_INJECTED)) {
I802_DEBUG_INC(tx->local->tx_handlers_drop_unencrypted);
return TXRX_DROP;
- } else {
+ } else
tx->key = NULL;
- tx->u.tx.control->flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT;
- }
if (tx->key) {
+ u16 ftype, stype;
+
tx->key->tx_rx_count++;
/* TODO: add threshold stuff again */
+
+ switch (tx->key->conf.alg) {
+ case ALG_WEP:
+ ftype = fc & IEEE80211_FCTL_FTYPE;
+ stype = fc & IEEE80211_FCTL_STYPE;
+
+ if (ftype == IEEE80211_FTYPE_MGMT &&
+ stype == IEEE80211_STYPE_AUTH)
+ break;
+ case ALG_TKIP:
+ case ALG_CCMP:
+ if (!WLAN_FC_DATA_PRESENT(fc))
+ tx->key = NULL;
+ break;
+ }
}
+ if (!tx->key || !(tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
+ tx->u.tx.control->flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT;
+
return TXRX_CONTINUE;
}
@@ -567,21 +584,17 @@ ieee80211_tx_h_encrypt(struct ieee80211_txrx_data *tx)
static ieee80211_txrx_result
ieee80211_tx_h_rate_ctrl(struct ieee80211_txrx_data *tx)
{
- struct rate_control_extra extra;
+ struct rate_selection rsel;
if (likely(!tx->u.tx.rate)) {
- memset(&extra, 0, sizeof(extra));
- extra.mode = tx->u.tx.mode;
- extra.ethertype = tx->ethertype;
-
- tx->u.tx.rate = rate_control_get_rate(tx->local, tx->dev,
- tx->skb, &extra);
- if (unlikely(extra.probe != NULL)) {
+ rate_control_get_rate(tx->dev, tx->u.tx.mode, tx->skb, &rsel);
+ tx->u.tx.rate = rsel.rate;
+ if (unlikely(rsel.probe != NULL)) {
tx->u.tx.control->flags |=
IEEE80211_TXCTL_RATE_CTRL_PROBE;
tx->flags |= IEEE80211_TXRXD_TXPROBE_LAST_FRAG;
tx->u.tx.control->alt_retry_rate = tx->u.tx.rate->val;
- tx->u.tx.rate = extra.probe;
+ tx->u.tx.rate = rsel.probe;
} else
tx->u.tx.control->alt_retry_rate = -1;
@@ -591,15 +604,15 @@ ieee80211_tx_h_rate_ctrl(struct ieee80211_txrx_data *tx)
tx->u.tx.control->alt_retry_rate = -1;
if (tx->u.tx.mode->mode == MODE_IEEE80211G &&
- (tx->sdata->flags & IEEE80211_SDATA_USE_PROTECTION) &&
- (tx->flags & IEEE80211_TXRXD_FRAGMENTED) && extra.nonerp) {
+ tx->sdata->bss_conf.use_cts_prot &&
+ (tx->flags & IEEE80211_TXRXD_FRAGMENTED) && rsel.nonerp) {
tx->u.tx.last_frag_rate = tx->u.tx.rate;
- if (extra.probe)
+ if (rsel.probe)
tx->flags &= ~IEEE80211_TXRXD_TXPROBE_LAST_FRAG;
else
tx->flags |= IEEE80211_TXRXD_TXPROBE_LAST_FRAG;
- tx->u.tx.rate = extra.nonerp;
- tx->u.tx.control->rate = extra.nonerp;
+ tx->u.tx.rate = rsel.nonerp;
+ tx->u.tx.control->rate = rsel.nonerp;
tx->u.tx.control->flags &= ~IEEE80211_TXCTL_RATE_CTRL_PROBE;
} else {
tx->u.tx.last_frag_rate = tx->u.tx.rate;
@@ -653,7 +666,7 @@ ieee80211_tx_h_misc(struct ieee80211_txrx_data *tx)
if (mode->mode == MODE_IEEE80211G &&
(tx->u.tx.rate->flags & IEEE80211_RATE_ERP) &&
(tx->flags & IEEE80211_TXRXD_TXUNICAST) &&
- (tx->sdata->flags & IEEE80211_SDATA_USE_PROTECTION) &&
+ tx->sdata->bss_conf.use_cts_prot &&
!(control->flags & IEEE80211_TXCTL_USE_RTS_CTS))
control->flags |= IEEE80211_TXCTL_USE_CTS_PROTECT;
@@ -662,7 +675,7 @@ ieee80211_tx_h_misc(struct ieee80211_txrx_data *tx)
* available on the network at the current point in time. */
if (((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA) &&
(tx->u.tx.rate->flags & IEEE80211_RATE_PREAMBLE2) &&
- (tx->sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE) &&
+ tx->sdata->bss_conf.use_short_preamble &&
(!tx->sta || (tx->sta->flags & WLAN_STA_SHORT_PREAMBLE))) {
tx->u.tx.control->tx_rate = tx->u.tx.rate->val2;
}
@@ -706,15 +719,6 @@ ieee80211_tx_h_misc(struct ieee80211_txrx_data *tx)
}
}
- /*
- * Tell hardware to not encrypt when we had sw crypto.
- * Because we use the same flag to internally indicate that
- * no (software) encryption should be done, we have to set it
- * after all crypto handlers.
- */
- if (tx->key && !(tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
- tx->u.tx.control->flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT;
-
return TXRX_CONTINUE;
}
@@ -927,7 +931,6 @@ __ieee80211_tx_prepare(struct ieee80211_txrx_data *tx,
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_hdr *hdr;
struct ieee80211_sub_if_data *sdata;
- ieee80211_txrx_result res = TXRX_CONTINUE;
int hdrlen;
@@ -945,7 +948,7 @@ __ieee80211_tx_prepare(struct ieee80211_txrx_data *tx,
/* process and remove the injection radiotap header */
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
- if (unlikely(sdata->type == IEEE80211_IF_TYPE_MNTR)) {
+ if (unlikely(sdata->vif.type == IEEE80211_IF_TYPE_MNTR)) {
if (__ieee80211_parse_tx_radiotap(tx, skb) == TXRX_DROP)
return TXRX_DROP;
@@ -992,12 +995,10 @@ __ieee80211_tx_prepare(struct ieee80211_txrx_data *tx,
}
control->flags |= IEEE80211_TXCTL_FIRST_FRAGMENT;
- return res;
+ return TXRX_CONTINUE;
}
-/* Device in tx->dev has a reference added; use dev_put(tx->dev) when
- * finished with it.
- *
+/*
* NB: @tx is uninitialised when passed in here
*/
static int ieee80211_tx_prepare(struct ieee80211_txrx_data *tx,
@@ -1018,6 +1019,7 @@ static int ieee80211_tx_prepare(struct ieee80211_txrx_data *tx,
return -ENODEV;
/* initialises tx with control */
__ieee80211_tx_prepare(tx, skb, dev, control);
+ dev_put(dev);
return 0;
}
@@ -1248,14 +1250,16 @@ int ieee80211_master_start_xmit(struct sk_buff *skb,
}
}
- control.ifindex = odev->ifindex;
- control.type = osdata->type;
+ control.vif = &osdata->vif;
+ control.type = osdata->vif.type;
if (pkt_data->flags & IEEE80211_TXPD_REQ_TX_STATUS)
control.flags |= IEEE80211_TXCTL_REQ_TX_STATUS;
if (pkt_data->flags & IEEE80211_TXPD_DO_NOT_ENCRYPT)
control.flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT;
if (pkt_data->flags & IEEE80211_TXPD_REQUEUE)
control.flags |= IEEE80211_TXCTL_REQUEUE;
+ if (pkt_data->flags & IEEE80211_TXPD_EAPOL_FRAME)
+ control.flags |= IEEE80211_TXCTL_EAPOL_FRAME;
control.queue = pkt_data->queue;
ret = ieee80211_tx(odev, skb, &control);
@@ -1348,6 +1352,7 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb,
int encaps_len, skip_header_bytes;
int nh_pos, h_pos;
struct sta_info *sta;
+ u32 sta_flags = 0;
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
if (unlikely(skb->len < ETH_HLEN)) {
@@ -1363,10 +1368,9 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb,
/* convert Ethernet header to proper 802.11 header (based on
* operation mode) */
ethertype = (skb->data[12] << 8) | skb->data[13];
- /* TODO: handling for 802.1x authorized/unauthorized port */
fc = IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA;
- switch (sdata->type) {
+ switch (sdata->vif.type) {
case IEEE80211_IF_TYPE_AP:
case IEEE80211_IF_TYPE_VLAN:
fc |= IEEE80211_FCTL_FROMDS;
@@ -1405,16 +1409,42 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb,
goto fail;
}
- /* receiver is QoS enabled, use a QoS type frame */
sta = sta_info_get(local, hdr.addr1);
if (sta) {
- if (sta->flags & WLAN_STA_WME) {
- fc |= IEEE80211_STYPE_QOS_DATA;
- hdrlen += 2;
- }
+ sta_flags = sta->flags;
sta_info_put(sta);
}
+ /* receiver is QoS enabled, use a QoS type frame */
+ if (sta_flags & WLAN_STA_WME) {
+ fc |= IEEE80211_STYPE_QOS_DATA;
+ hdrlen += 2;
+ }
+
+ /*
+ * If port access control is enabled, drop frames to unauthorised
+ * stations unless they are EAPOL frames from the local station.
+ */
+ if (unlikely(sdata->ieee802_1x_pac &&
+ !(sta_flags & WLAN_STA_AUTHORIZED) &&
+ !(ethertype == ETH_P_PAE &&
+ compare_ether_addr(dev->dev_addr,
+ skb->data + ETH_ALEN) == 0))) {
+#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
+ DECLARE_MAC_BUF(mac);
+
+ if (net_ratelimit())
+ printk(KERN_DEBUG "%s: dropped frame to %s"
+ " (unauthorized port)\n", dev->name,
+ print_mac(mac, hdr.addr1));
+#endif
+
+ I802_DEBUG_INC(local->tx_handlers_drop_unauth_port);
+
+ ret = 0;
+ goto fail;
+ }
+
hdr.frame_control = cpu_to_le16(fc);
hdr.duration_id = 0;
hdr.seq_ctrl = 0;
@@ -1503,6 +1533,8 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb,
pkt_data = (struct ieee80211_tx_packet_data *)skb->cb;
memset(pkt_data, 0, sizeof(struct ieee80211_tx_packet_data));
pkt_data->ifindex = dev->ifindex;
+ if (ethertype == ETH_P_PAE)
+ pkt_data->flags |= IEEE80211_TXPD_EAPOL_FRAME;
skb->dev = local->mdev;
dev->stats.tx_packets++;
@@ -1527,64 +1559,6 @@ int ieee80211_subif_start_xmit(struct sk_buff *skb,
return ret;
}
-/*
- * This is the transmit routine for the 802.11 type interfaces
- * called by upper layers of the linux networking
- * stack when it has a frame to transmit
- */
-int ieee80211_mgmt_start_xmit(struct sk_buff *skb, struct net_device *dev)
-{
- struct ieee80211_sub_if_data *sdata;
- struct ieee80211_tx_packet_data *pkt_data;
- struct ieee80211_hdr *hdr;
- u16 fc;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(dev);
-
- if (skb->len < 10) {
- dev_kfree_skb(skb);
- return 0;
- }
-
- if (skb_headroom(skb) < sdata->local->tx_headroom) {
- if (pskb_expand_head(skb, sdata->local->tx_headroom,
- 0, GFP_ATOMIC)) {
- dev_kfree_skb(skb);
- return 0;
- }
- }
-
- hdr = (struct ieee80211_hdr *) skb->data;
- fc = le16_to_cpu(hdr->frame_control);
-
- pkt_data = (struct ieee80211_tx_packet_data *) skb->cb;
- memset(pkt_data, 0, sizeof(struct ieee80211_tx_packet_data));
- pkt_data->ifindex = sdata->dev->ifindex;
-
- skb->priority = 20; /* use hardcoded priority for mgmt TX queue */
- skb->dev = sdata->local->mdev;
-
- /*
- * We're using the protocol field of the the frame control header
- * to request TX callback for hostapd. BIT(1) is checked.
- */
- if ((fc & BIT(1)) == BIT(1)) {
- pkt_data->flags |= IEEE80211_TXPD_REQ_TX_STATUS;
- fc &= ~BIT(1);
- hdr->frame_control = cpu_to_le16(fc);
- }
-
- if (!(fc & IEEE80211_FCTL_PROTECTED))
- pkt_data->flags |= IEEE80211_TXPD_DO_NOT_ENCRYPT;
-
- dev->stats.tx_packets++;
- dev->stats.tx_bytes += skb->len;
-
- dev_queue_xmit(skb);
-
- return 0;
-}
-
/* helper functions for pending packets for when queues are stopped */
void ieee80211_clear_tx_pending(struct ieee80211_local *local)
@@ -1653,7 +1627,8 @@ void ieee80211_tx_pending(unsigned long data)
static void ieee80211_beacon_add_tim(struct ieee80211_local *local,
struct ieee80211_if_ap *bss,
- struct sk_buff *skb)
+ struct sk_buff *skb,
+ struct beacon_data *beacon)
{
u8 *pos, *tim;
int aid0 = 0;
@@ -1669,7 +1644,7 @@ static void ieee80211_beacon_add_tim(struct ieee80211_local *local,
IEEE80211_MAX_AID+1);
if (bss->dtim_count == 0)
- bss->dtim_count = bss->dtim_period - 1;
+ bss->dtim_count = beacon->dtim_period - 1;
else
bss->dtim_count--;
@@ -1677,7 +1652,7 @@ static void ieee80211_beacon_add_tim(struct ieee80211_local *local,
*pos++ = WLAN_EID_TIM;
*pos++ = 4;
*pos++ = bss->dtim_count;
- *pos++ = bss->dtim_period;
+ *pos++ = beacon->dtim_period;
if (bss->dtim_count == 0 && !skb_queue_empty(&bss->ps_bc_buf))
aid0 = 1;
@@ -1715,7 +1690,8 @@ static void ieee80211_beacon_add_tim(struct ieee80211_local *local,
read_unlock_bh(&local->sta_lock);
}
-struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw, int if_id,
+struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
struct ieee80211_tx_control *control)
{
struct ieee80211_local *local = hw_to_local(hw);
@@ -1723,68 +1699,64 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw, int if_id,
struct net_device *bdev;
struct ieee80211_sub_if_data *sdata = NULL;
struct ieee80211_if_ap *ap = NULL;
- struct ieee80211_rate *rate;
- struct rate_control_extra extra;
- u8 *b_head, *b_tail;
- int bh_len, bt_len;
-
- bdev = dev_get_by_index(&init_net, if_id);
- if (bdev) {
- sdata = IEEE80211_DEV_TO_SUB_IF(bdev);
- ap = &sdata->u.ap;
- dev_put(bdev);
- }
+ struct rate_selection rsel;
+ struct beacon_data *beacon;
+
+ rcu_read_lock();
- if (!ap || sdata->type != IEEE80211_IF_TYPE_AP ||
- !ap->beacon_head) {
+ sdata = vif_to_sdata(vif);
+ bdev = sdata->dev;
+ ap = &sdata->u.ap;
+
+ beacon = rcu_dereference(ap->beacon);
+
+ if (!ap || sdata->vif.type != IEEE80211_IF_TYPE_AP || !beacon) {
#ifdef CONFIG_MAC80211_VERBOSE_DEBUG
if (net_ratelimit())
- printk(KERN_DEBUG "no beacon data avail for idx=%d "
- "(%s)\n", if_id, bdev ? bdev->name : "N/A");
+ printk(KERN_DEBUG "no beacon data avail for %s\n",
+ bdev->name);
#endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
- return NULL;
+ skb = NULL;
+ goto out;
}
- /* Assume we are generating the normal beacon locally */
- b_head = ap->beacon_head;
- b_tail = ap->beacon_tail;
- bh_len = ap->beacon_head_len;
- bt_len = ap->beacon_tail_len;
-
- skb = dev_alloc_skb(local->tx_headroom +
- bh_len + bt_len + 256 /* maximum TIM len */);
+ /* headroom, head length, tail length and maximum TIM length */
+ skb = dev_alloc_skb(local->tx_headroom + beacon->head_len +
+ beacon->tail_len + 256);
if (!skb)
- return NULL;
+ goto out;
skb_reserve(skb, local->tx_headroom);
- memcpy(skb_put(skb, bh_len), b_head, bh_len);
+ memcpy(skb_put(skb, beacon->head_len), beacon->head,
+ beacon->head_len);
ieee80211_include_sequence(sdata, (struct ieee80211_hdr *)skb->data);
- ieee80211_beacon_add_tim(local, ap, skb);
+ ieee80211_beacon_add_tim(local, ap, skb, beacon);
- if (b_tail) {
- memcpy(skb_put(skb, bt_len), b_tail, bt_len);
- }
+ if (beacon->tail)
+ memcpy(skb_put(skb, beacon->tail_len), beacon->tail,
+ beacon->tail_len);
if (control) {
- memset(&extra, 0, sizeof(extra));
- extra.mode = local->oper_hw_mode;
-
- rate = rate_control_get_rate(local, local->mdev, skb, &extra);
- if (!rate) {
+ rate_control_get_rate(local->mdev, local->oper_hw_mode, skb,
+ &rsel);
+ if (!rsel.rate) {
if (net_ratelimit()) {
- printk(KERN_DEBUG "%s: ieee80211_beacon_get: no rate "
- "found\n", wiphy_name(local->hw.wiphy));
+ printk(KERN_DEBUG "%s: ieee80211_beacon_get: "
+ "no rate found\n",
+ wiphy_name(local->hw.wiphy));
}
dev_kfree_skb(skb);
- return NULL;
+ skb = NULL;
+ goto out;
}
+ control->vif = vif;
control->tx_rate =
- ((sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE) &&
- (rate->flags & IEEE80211_RATE_PREAMBLE2)) ?
- rate->val2 : rate->val;
+ (sdata->bss_conf.use_short_preamble &&
+ (rsel.rate->flags & IEEE80211_RATE_PREAMBLE2)) ?
+ rsel.rate->val2 : rsel.rate->val;
control->antenna_sel_tx = local->hw.conf.antenna_sel_tx;
control->power_level = local->hw.conf.power_level;
control->flags |= IEEE80211_TXCTL_NO_ACK;
@@ -1793,11 +1765,14 @@ struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw, int if_id,
}
ap->num_beacons++;
+
+ out:
+ rcu_read_unlock();
return skb;
}
EXPORT_SYMBOL(ieee80211_beacon_get);
-void ieee80211_rts_get(struct ieee80211_hw *hw, int if_id,
+void ieee80211_rts_get(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
const void *frame, size_t frame_len,
const struct ieee80211_tx_control *frame_txctl,
struct ieee80211_rts *rts)
@@ -1807,13 +1782,14 @@ void ieee80211_rts_get(struct ieee80211_hw *hw, int if_id,
fctl = IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS;
rts->frame_control = cpu_to_le16(fctl);
- rts->duration = ieee80211_rts_duration(hw, if_id, frame_len, frame_txctl);
+ rts->duration = ieee80211_rts_duration(hw, vif, frame_len,
+ frame_txctl);
memcpy(rts->ra, hdr->addr1, sizeof(rts->ra));
memcpy(rts->ta, hdr->addr2, sizeof(rts->ta));
}
EXPORT_SYMBOL(ieee80211_rts_get);
-void ieee80211_ctstoself_get(struct ieee80211_hw *hw, int if_id,
+void ieee80211_ctstoself_get(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
const void *frame, size_t frame_len,
const struct ieee80211_tx_control *frame_txctl,
struct ieee80211_cts *cts)
@@ -1823,13 +1799,15 @@ void ieee80211_ctstoself_get(struct ieee80211_hw *hw, int if_id,
fctl = IEEE80211_FTYPE_CTL | IEEE80211_STYPE_CTS;
cts->frame_control = cpu_to_le16(fctl);
- cts->duration = ieee80211_ctstoself_duration(hw, if_id, frame_len, frame_txctl);
+ cts->duration = ieee80211_ctstoself_duration(hw, vif,
+ frame_len, frame_txctl);
memcpy(cts->ra, hdr->addr1, sizeof(cts->ra));
}
EXPORT_SYMBOL(ieee80211_ctstoself_get);
struct sk_buff *
-ieee80211_get_buffered_bc(struct ieee80211_hw *hw, int if_id,
+ieee80211_get_buffered_bc(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
struct ieee80211_tx_control *control)
{
struct ieee80211_local *local = hw_to_local(hw);
@@ -1841,16 +1819,25 @@ ieee80211_get_buffered_bc(struct ieee80211_hw *hw, int if_id,
struct net_device *bdev;
struct ieee80211_sub_if_data *sdata;
struct ieee80211_if_ap *bss = NULL;
+ struct beacon_data *beacon;
- bdev = dev_get_by_index(&init_net, if_id);
- if (bdev) {
- sdata = IEEE80211_DEV_TO_SUB_IF(bdev);
- bss = &sdata->u.ap;
- dev_put(bdev);
- }
- if (!bss || sdata->type != IEEE80211_IF_TYPE_AP || !bss->beacon_head)
+ sdata = vif_to_sdata(vif);
+ bdev = sdata->dev;
+
+
+ if (!bss)
return NULL;
+ rcu_read_lock();
+ beacon = rcu_dereference(bss->beacon);
+
+ if (sdata->vif.type != IEEE80211_IF_TYPE_AP || !beacon ||
+ !beacon->head) {
+ rcu_read_unlock();
+ return NULL;
+ }
+ rcu_read_unlock();
+
if (bss->dtim_count != 0)
return NULL; /* send buffered bc/mc only after DTIM beacon */
memset(control, 0, sizeof(*control));
@@ -1883,7 +1870,6 @@ ieee80211_get_buffered_bc(struct ieee80211_hw *hw, int if_id,
if (res == TXRX_DROP || res == TXRX_QUEUED)
break;
}
- dev_put(tx.dev);
skb = tx.skb; /* handlers are allowed to change skb */
if (res == TXRX_DROP) {
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 5a0564e1dbd6..5e631ce98d7e 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -22,6 +22,7 @@
#include <linux/bitmap.h>
#include <net/net_namespace.h>
#include <net/cfg80211.h>
+#include <net/rtnetlink.h>
#include "ieee80211_i.h"
#include "ieee80211_rate.h"
@@ -39,10 +40,6 @@ const unsigned char rfc1042_header[] =
const unsigned char bridge_tunnel_header[] =
{ 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8 };
-/* No encapsulation header if EtherType < 0x600 (=length) */
-static const unsigned char eapol_header[] =
- { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00, 0x88, 0x8e };
-
static int rate_list_match(const int *rate_list, int rate)
{
@@ -130,17 +127,21 @@ void ieee80211_prepare_rates(struct ieee80211_local *local,
}
}
-u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len)
+u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
+ enum ieee80211_if_types type)
{
u16 fc;
- if (len < 24)
+ /* drop ACK/CTS frames and incorrect hdr len (ctrl) */
+ if (len < 16)
return NULL;
fc = le16_to_cpu(hdr->frame_control);
switch (fc & IEEE80211_FCTL_FTYPE) {
case IEEE80211_FTYPE_DATA:
+ if (len < 24) /* drop incorrect hdr len (data) */
+ return NULL;
switch (fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) {
case IEEE80211_FCTL_TODS:
return hdr->addr1;
@@ -153,10 +154,24 @@ u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len)
}
break;
case IEEE80211_FTYPE_MGMT:
+ if (len < 24) /* drop incorrect hdr len (mgmt) */
+ return NULL;
return hdr->addr3;
case IEEE80211_FTYPE_CTL:
if ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PSPOLL)
return hdr->addr1;
+ else if ((fc & IEEE80211_FCTL_STYPE) ==
+ IEEE80211_STYPE_BACK_REQ) {
+ switch (type) {
+ case IEEE80211_IF_TYPE_STA:
+ return hdr->addr2;
+ case IEEE80211_IF_TYPE_AP:
+ case IEEE80211_IF_TYPE_VLAN:
+ return hdr->addr1;
+ default:
+ return NULL;
+ }
+ }
else
return NULL;
}
@@ -217,31 +232,6 @@ int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb)
}
EXPORT_SYMBOL(ieee80211_get_hdrlen_from_skb);
-int ieee80211_is_eapol(const struct sk_buff *skb)
-{
- const struct ieee80211_hdr *hdr;
- u16 fc;
- int hdrlen;
-
- if (unlikely(skb->len < 10))
- return 0;
-
- hdr = (const struct ieee80211_hdr *) skb->data;
- fc = le16_to_cpu(hdr->frame_control);
-
- if (unlikely(!WLAN_FC_DATA_PRESENT(fc)))
- return 0;
-
- hdrlen = ieee80211_get_hdrlen(fc);
-
- if (unlikely(skb->len >= hdrlen + sizeof(eapol_header) &&
- memcmp(skb->data + hdrlen, eapol_header,
- sizeof(eapol_header)) == 0))
- return 1;
-
- return 0;
-}
-
void ieee80211_tx_set_iswep(struct ieee80211_txrx_data *tx)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
@@ -312,45 +302,35 @@ int ieee80211_frame_duration(struct ieee80211_local *local, size_t len,
}
/* Exported duration function for driver use */
-__le16 ieee80211_generic_frame_duration(struct ieee80211_hw *hw, int if_id,
+__le16 ieee80211_generic_frame_duration(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
size_t frame_len, int rate)
{
struct ieee80211_local *local = hw_to_local(hw);
- struct net_device *bdev = dev_get_by_index(&init_net, if_id);
- struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
u16 dur;
int erp;
- if (unlikely(!bdev))
- return 0;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(bdev);
erp = ieee80211_is_erp_rate(hw->conf.phymode, rate);
- dur = ieee80211_frame_duration(local, frame_len, rate,
- erp, sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE);
+ dur = ieee80211_frame_duration(local, frame_len, rate, erp,
+ sdata->bss_conf.use_short_preamble);
- dev_put(bdev);
return cpu_to_le16(dur);
}
EXPORT_SYMBOL(ieee80211_generic_frame_duration);
-__le16 ieee80211_rts_duration(struct ieee80211_hw *hw, int if_id,
- size_t frame_len,
+__le16 ieee80211_rts_duration(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif, size_t frame_len,
const struct ieee80211_tx_control *frame_txctl)
{
struct ieee80211_local *local = hw_to_local(hw);
struct ieee80211_rate *rate;
- struct net_device *bdev = dev_get_by_index(&init_net, if_id);
- struct ieee80211_sub_if_data *sdata;
- int short_preamble;
+ struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+ bool short_preamble;
int erp;
u16 dur;
- if (unlikely(!bdev))
- return 0;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(bdev);
- short_preamble = sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE;
+ short_preamble = sdata->bss_conf.use_short_preamble;
rate = frame_txctl->rts_rate;
erp = !!(rate->flags & IEEE80211_RATE_ERP);
@@ -365,28 +345,23 @@ __le16 ieee80211_rts_duration(struct ieee80211_hw *hw, int if_id,
dur += ieee80211_frame_duration(local, 10, rate->rate,
erp, short_preamble);
- dev_put(bdev);
return cpu_to_le16(dur);
}
EXPORT_SYMBOL(ieee80211_rts_duration);
-__le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw, int if_id,
+__le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
size_t frame_len,
const struct ieee80211_tx_control *frame_txctl)
{
struct ieee80211_local *local = hw_to_local(hw);
struct ieee80211_rate *rate;
- struct net_device *bdev = dev_get_by_index(&init_net, if_id);
- struct ieee80211_sub_if_data *sdata;
- int short_preamble;
+ struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+ bool short_preamble;
int erp;
u16 dur;
- if (unlikely(!bdev))
- return 0;
-
- sdata = IEEE80211_DEV_TO_SUB_IF(bdev);
- short_preamble = sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE;
+ short_preamble = sdata->bss_conf.use_short_preamble;
rate = frame_txctl->rts_rate;
erp = !!(rate->flags & IEEE80211_RATE_ERP);
@@ -400,7 +375,6 @@ __le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw, int if_id,
erp, short_preamble);
}
- dev_put(bdev);
return cpu_to_le16(dur);
}
EXPORT_SYMBOL(ieee80211_ctstoself_duration);
@@ -484,3 +458,37 @@ void ieee80211_wake_queues(struct ieee80211_hw *hw)
ieee80211_wake_queue(hw, i);
}
EXPORT_SYMBOL(ieee80211_wake_queues);
+
+void ieee80211_iterate_active_interfaces(
+ struct ieee80211_hw *hw,
+ void (*iterator)(void *data, u8 *mac,
+ struct ieee80211_vif *vif),
+ void *data)
+{
+ struct ieee80211_local *local = hw_to_local(hw);
+ struct ieee80211_sub_if_data *sdata;
+
+ rcu_read_lock();
+
+ list_for_each_entry_rcu(sdata, &local->interfaces, list) {
+ switch (sdata->vif.type) {
+ case IEEE80211_IF_TYPE_INVALID:
+ case IEEE80211_IF_TYPE_MNTR:
+ case IEEE80211_IF_TYPE_VLAN:
+ continue;
+ case IEEE80211_IF_TYPE_AP:
+ case IEEE80211_IF_TYPE_STA:
+ case IEEE80211_IF_TYPE_IBSS:
+ case IEEE80211_IF_TYPE_WDS:
+ break;
+ }
+ if (sdata->dev == local->mdev)
+ continue;
+ if (netif_running(sdata->dev))
+ iterator(data, sdata->dev->dev_addr,
+ &sdata->vif);
+ }
+
+ rcu_read_unlock();
+}
+EXPORT_SYMBOL_GPL(ieee80211_iterate_active_interfaces);
diff --git a/net/mac80211/wep.c b/net/mac80211/wep.c
index b5f3413403bd..a0cff72a580b 100644
--- a/net/mac80211/wep.c
+++ b/net/mac80211/wep.c
@@ -349,16 +349,6 @@ static int wep_encrypt_skb(struct ieee80211_txrx_data *tx, struct sk_buff *skb)
ieee80211_txrx_result
ieee80211_crypto_wep_encrypt(struct ieee80211_txrx_data *tx)
{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
- u16 fc;
-
- fc = le16_to_cpu(hdr->frame_control);
-
- if (((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA &&
- ((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT ||
- (fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_AUTH)))
- return TXRX_CONTINUE;
-
tx->u.tx.control->iv_len = WEP_IV_LEN;
tx->u.tx.control->icv_len = WEP_ICV_LEN;
ieee80211_tx_set_iswep(tx);
diff --git a/net/mac80211/wme.c b/net/mac80211/wme.c
index 5b8a157975a3..4e236599dd31 100644
--- a/net/mac80211/wme.c
+++ b/net/mac80211/wme.c
@@ -28,6 +28,7 @@ struct ieee80211_sched_data
struct sk_buff_head requeued[TC_80211_MAX_QUEUES];
};
+static const char llc_ip_hdr[8] = {0xAA, 0xAA, 0x3, 0, 0, 0, 0x08, 0};
/* given a data frame determine the 802.1p/1d tag to use */
static inline unsigned classify_1d(struct sk_buff *skb, struct Qdisc *qd)
@@ -54,12 +55,12 @@ static inline unsigned classify_1d(struct sk_buff *skb, struct Qdisc *qd)
return skb->priority - 256;
/* check there is a valid IP header present */
- offset = ieee80211_get_hdrlen_from_skb(skb) + 8 /* LLC + proto */;
- if (skb->protocol != __constant_htons(ETH_P_IP) ||
- skb->len < offset + sizeof(*ip))
+ offset = ieee80211_get_hdrlen_from_skb(skb);
+ if (skb->len < offset + sizeof(llc_ip_hdr) + sizeof(*ip) ||
+ memcmp(skb->data + offset, llc_ip_hdr, sizeof(llc_ip_hdr)))
return 0;
- ip = (struct iphdr *) (skb->data + offset);
+ ip = (struct iphdr *) (skb->data + offset + sizeof(llc_ip_hdr));
dscp = ip->tos & 0xfc;
if (dscp & 0x1c)
@@ -296,16 +297,16 @@ static void wme_qdiscop_destroy(struct Qdisc* qd)
/* called whenever parameters are updated on existing qdisc */
-static int wme_qdiscop_tune(struct Qdisc *qd, struct rtattr *opt)
+static int wme_qdiscop_tune(struct Qdisc *qd, struct nlattr *opt)
{
/* struct ieee80211_sched_data *q = qdisc_priv(qd);
*/
/* check our options block is the right size */
/* copy any options to our local structure */
/* Ignore options block for now - always use static mapping
- struct tc_ieee80211_qopt *qopt = RTA_DATA(opt);
+ struct tc_ieee80211_qopt *qopt = nla_data(opt);
- if (opt->rta_len < RTA_LENGTH(sizeof(*qopt)))
+ if (opt->nla_len < nla_attr_size(sizeof(*qopt)))
return -EINVAL;
memcpy(q->tag2queue, qopt->tag2queue, sizeof(qopt->tag2queue));
*/
@@ -314,7 +315,7 @@ static int wme_qdiscop_tune(struct Qdisc *qd, struct rtattr *opt)
/* called during initial creation of qdisc on device */
-static int wme_qdiscop_init(struct Qdisc *qd, struct rtattr *opt)
+static int wme_qdiscop_init(struct Qdisc *qd, struct nlattr *opt)
{
struct ieee80211_sched_data *q = qdisc_priv(qd);
struct net_device *dev = qd->dev;
@@ -369,10 +370,10 @@ static int wme_qdiscop_dump(struct Qdisc *qd, struct sk_buff *skb)
struct tc_ieee80211_qopt opt;
memcpy(&opt.tag2queue, q->tag2queue, TC_80211_MAX_TAG + 1);
- RTA_PUT(skb, TCA_OPTIONS, sizeof(opt), &opt);
+ NLA_PUT(skb, TCA_OPTIONS, sizeof(opt), &opt);
*/ return skb->len;
/*
-rtattr_failure:
+nla_put_failure:
skb_trim(skb, p - skb->data);*/
return -1;
}
@@ -443,7 +444,7 @@ static void wme_classop_put(struct Qdisc *q, unsigned long cl)
static int wme_classop_change(struct Qdisc *qd, u32 handle, u32 parent,
- struct rtattr **tca, unsigned long *arg)
+ struct nlattr **tca, unsigned long *arg)
{
unsigned long cl = *arg;
struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
@@ -527,7 +528,7 @@ static struct tcf_proto ** wme_classop_find_tcf(struct Qdisc *qd,
/* this qdisc is classful (i.e. has classes, some of which may have leaf qdiscs attached)
* - these are the operations on the classes */
-static struct Qdisc_class_ops class_ops =
+static const struct Qdisc_class_ops class_ops =
{
.graft = wme_classop_graft,
.leaf = wme_classop_leaf,
@@ -547,7 +548,7 @@ static struct Qdisc_class_ops class_ops =
/* queueing discipline operations */
-static struct Qdisc_ops wme_qdisc_ops =
+static struct Qdisc_ops wme_qdisc_ops __read_mostly =
{
.next = NULL,
.cl_ops = &class_ops,
diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c
index 20cec1cb956f..6f04311cf0a0 100644
--- a/net/mac80211/wpa.c
+++ b/net/mac80211/wpa.c
@@ -245,16 +245,9 @@ static int tkip_encrypt_skb(struct ieee80211_txrx_data *tx,
ieee80211_txrx_result
ieee80211_crypto_tkip_encrypt(struct ieee80211_txrx_data *tx)
{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
- u16 fc;
struct sk_buff *skb = tx->skb;
int wpa_test = 0, test = 0;
- fc = le16_to_cpu(hdr->frame_control);
-
- if (!WLAN_FC_DATA_PRESENT(fc))
- return TXRX_CONTINUE;
-
tx->u.tx.control->icv_len = TKIP_ICV_LEN;
tx->u.tx.control->iv_len = TKIP_IV_LEN;
ieee80211_tx_set_iswep(tx);
@@ -501,16 +494,9 @@ static int ccmp_encrypt_skb(struct ieee80211_txrx_data *tx,
ieee80211_txrx_result
ieee80211_crypto_ccmp_encrypt(struct ieee80211_txrx_data *tx)
{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
- u16 fc;
struct sk_buff *skb = tx->skb;
int test = 0;
- fc = le16_to_cpu(hdr->frame_control);
-
- if (!WLAN_FC_DATA_PRESENT(fc))
- return TXRX_CONTINUE;
-
tx->u.tx.control->icv_len = CCMP_MIC_LEN;
tx->u.tx.control->iv_len = CCMP_HDR_LEN;
ieee80211_tx_set_iswep(tx);
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-20 01:36:56 +0100