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-rw-r--r--net/mac80211/cfg.c12
-rw-r--r--net/mac80211/ieee80211_i.h6
-rw-r--r--net/mac80211/mlme.c35
-rw-r--r--net/mac80211/rx.c42
-rw-r--r--net/mac80211/status.c7
5 files changed, 88 insertions, 14 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index e1731b7c2523..b7116ef84a3b 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1,7 +1,7 @@
/*
* mac80211 configuration hooks for cfg80211
*
- * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net>
+ * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
*
* This file is GPLv2 as found in COPYING.
*/
@@ -1448,6 +1448,15 @@ static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
return ieee80211_wk_cancel_remain_on_channel(sdata, cookie);
}
+static int ieee80211_action(struct wiphy *wiphy, struct net_device *dev,
+ struct ieee80211_channel *chan,
+ enum nl80211_channel_type channel_type,
+ const u8 *buf, size_t len, u64 *cookie)
+{
+ return ieee80211_mgd_action(IEEE80211_DEV_TO_SUB_IF(dev), chan,
+ channel_type, buf, len, cookie);
+}
+
struct cfg80211_ops mac80211_config_ops = {
.add_virtual_intf = ieee80211_add_iface,
.del_virtual_intf = ieee80211_del_iface,
@@ -1496,4 +1505,5 @@ struct cfg80211_ops mac80211_config_ops = {
.set_bitrate_mask = ieee80211_set_bitrate_mask,
.remain_on_channel = ieee80211_remain_on_channel,
.cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
+ .action = ieee80211_action,
};
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 9dd98b674cbc..241533e1bc03 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -2,7 +2,7 @@
* Copyright 2002-2005, Instant802 Networks, Inc.
* Copyright 2005, Devicescape Software, Inc.
* Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
- * Copyright 2007-2008 Johannes Berg <johannes@sipsolutions.net>
+ * Copyright 2007-2010 Johannes Berg <johannes@sipsolutions.net>
*
* 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
@@ -966,6 +966,10 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
struct cfg80211_disassoc_request *req,
void *cookie);
+int ieee80211_mgd_action(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_channel *chan,
+ enum nl80211_channel_type channel_type,
+ const u8 *buf, size_t len, u64 *cookie);
ieee80211_rx_result ieee80211_sta_rx_mgmt(struct ieee80211_sub_if_data *sdata,
struct sk_buff *skb);
void ieee80211_send_pspoll(struct ieee80211_local *local,
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index bfc4a5070013..41812a15eea0 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -2084,3 +2084,38 @@ int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
return 0;
}
+
+int ieee80211_mgd_action(struct ieee80211_sub_if_data *sdata,
+ struct ieee80211_channel *chan,
+ enum nl80211_channel_type channel_type,
+ const u8 *buf, size_t len, u64 *cookie)
+{
+ struct ieee80211_local *local = sdata->local;
+ struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+ struct sk_buff *skb;
+
+ /* Check that we are on the requested channel for transmission */
+ if ((chan != local->tmp_channel ||
+ channel_type != local->tmp_channel_type) &&
+ (chan != local->oper_channel ||
+ channel_type != local->oper_channel_type))
+ return -EBUSY;
+
+ skb = dev_alloc_skb(local->hw.extra_tx_headroom + len);
+ if (!skb)
+ return -ENOMEM;
+ skb_reserve(skb, local->hw.extra_tx_headroom);
+
+ memcpy(skb_put(skb, len), buf, len);
+
+ if (!(ifmgd->flags & IEEE80211_STA_MFP_ENABLED))
+ IEEE80211_SKB_CB(skb)->flags |=
+ IEEE80211_TX_INTFL_DONT_ENCRYPT;
+ IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_NL80211_FRAME_TX |
+ IEEE80211_TX_CTL_REQ_TX_STATUS;
+ skb->dev = sdata->dev;
+ ieee80211_tx_skb(sdata, skb);
+
+ *cookie = (unsigned long) skb;
+ return 0;
+}
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index a177472adc13..a6080d8d72bb 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1856,28 +1856,25 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
struct ieee80211_sub_if_data *sdata = rx->sdata;
struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *) rx->skb->data;
struct sk_buff *nskb;
+ struct ieee80211_rx_status *status;
int len = rx->skb->len;
if (!ieee80211_is_action(mgmt->frame_control))
return RX_CONTINUE;
- if (!rx->sta)
+ /* drop too small frames */
+ if (len < IEEE80211_MIN_ACTION_SIZE)
return RX_DROP_UNUSABLE;
- if (!(rx->flags & IEEE80211_RX_RA_MATCH))
+ if (!rx->sta && mgmt->u.action.category != WLAN_CATEGORY_PUBLIC)
return RX_DROP_UNUSABLE;
- if (ieee80211_drop_unencrypted(rx, mgmt->frame_control))
+ if (!(rx->flags & IEEE80211_RX_RA_MATCH))
return RX_DROP_UNUSABLE;
- /* drop too small frames */
- if (len < IEEE80211_MIN_ACTION_SIZE)
+ if (ieee80211_drop_unencrypted(rx, mgmt->frame_control))
return RX_DROP_UNUSABLE;
- /* return action frames that have *only* category */
- if (len < IEEE80211_MIN_ACTION_SIZE + 1)
- goto return_frame;
-
switch (mgmt->u.action.category) {
case WLAN_CATEGORY_BACK:
/*
@@ -1891,6 +1888,10 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
sdata->vif.type != NL80211_IFTYPE_AP)
break;
+ /* verify action_code is present */
+ if (len < IEEE80211_MIN_ACTION_SIZE + 1)
+ break;
+
switch (mgmt->u.action.u.addba_req.action_code) {
case WLAN_ACTION_ADDBA_REQ:
if (len < (IEEE80211_MIN_ACTION_SIZE +
@@ -1919,6 +1920,10 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
if (sdata->vif.type != NL80211_IFTYPE_STATION)
break;
+ /* verify action_code is present */
+ if (len < IEEE80211_MIN_ACTION_SIZE + 1)
+ break;
+
switch (mgmt->u.action.u.measurement.action_code) {
case WLAN_ACTION_SPCT_MSR_REQ:
if (len < (IEEE80211_MIN_ACTION_SIZE +
@@ -1954,7 +1959,7 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
}
break;
}
- return_frame:
+
/*
* For AP mode, hostapd is responsible for handling any action
* frames that we didn't handle, including returning unknown
@@ -1966,6 +1971,20 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
return RX_DROP_MONITOR;
+ /*
+ * Getting here means the kernel doesn't know how to handle
+ * it, but maybe userspace does ... include returned frames
+ * so userspace can register for those to know whether ones
+ * it transmitted were processed or returned.
+ */
+ status = IEEE80211_SKB_RXCB(rx->skb);
+
+ if (sdata->vif.type == NL80211_IFTYPE_STATION &&
+ cfg80211_rx_action(rx->sdata->dev, status->freq,
+ rx->skb->data, rx->skb->len,
+ GFP_ATOMIC))
+ goto handled;
+
/* do not return rejected action frames */
if (mgmt->u.action.category & 0x80)
return RX_DROP_UNUSABLE;
@@ -1985,7 +2004,8 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
}
handled:
- rx->sta->rx_packets++;
+ if (rx->sta)
+ rx->sta->rx_packets++;
dev_kfree_skb(rx->skb);
return RX_QUEUED;
}
diff --git a/net/mac80211/status.c b/net/mac80211/status.c
index ded98730c111..56d5b9a6ec5b 100644
--- a/net/mac80211/status.c
+++ b/net/mac80211/status.c
@@ -2,7 +2,7 @@
* Copyright 2002-2005, Instant802 Networks, Inc.
* Copyright 2005-2006, Devicescape Software, Inc.
* Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
- * Copyright 2008-2009 Johannes Berg <johannes@sipsolutions.net>
+ * Copyright 2008-2010 Johannes Berg <johannes@sipsolutions.net>
*
* 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
@@ -288,6 +288,11 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb)
msecs_to_jiffies(10));
}
+ if (info->flags & IEEE80211_TX_INTFL_NL80211_FRAME_TX)
+ cfg80211_action_tx_status(
+ skb->dev, (unsigned long) skb, skb->data, skb->len,
+ !!(info->flags & IEEE80211_TX_STAT_ACK), GFP_ATOMIC);
+
/* this was a transmitted frame, but now we want to reuse it */
skb_orphan(skb);
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.