This ioctl is used when radar is delected on a channel. Data frames must stop
but management frames must be allowed to continue for some time to communicate
the channel switch to stations.
Signed-off-by: David Kimdon <[EMAIL PROTECTED]>
Index: linux-2.6.16/net/d80211/hostapd_ioctl.h
===================================================================
--- linux-2.6.16.orig/net/d80211/hostapd_ioctl.h
+++ linux-2.6.16/net/d80211/hostapd_ioctl.h
@@ -93,6 +93,7 @@ enum {
PRISM2_PARAM_SPECTRUM_MGMT = 1044,
PRISM2_PARAM_USER_SPACE_MLME = 1045,
PRISM2_PARAM_MGMT_IF = 1046,
+ PRISM2_PARAM_STOP_DATA_FRAME_TX = 1047,
/* NOTE: Please try to coordinate with other active development
* branches before allocating new param numbers so that each new param
* will be unique within all branches and the allocated number will not
Index: linux-2.6.16/net/d80211/ieee80211.c
===================================================================
--- linux-2.6.16.orig/net/d80211/ieee80211.c
+++ linux-2.6.16/net/d80211/ieee80211.c
@@ -1240,6 +1240,15 @@ static int ieee80211_tx(struct net_devic
return 0;
}
+ if (unlikely(local->stop_data_frame_tx)) {
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+ u16 fc = le16_to_cpu(hdr->frame_control);
+ if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA) {
+ dev_kfree_skb(skb);
+ return 0;
+ }
+ }
+
__ieee80211_tx_prepare(&tx, skb, dev, control);
sta = tx.sta;
tx.u.tx.mgmt_interface = mgmt;
Index: linux-2.6.16/net/d80211/ieee80211_i.h
===================================================================
--- linux-2.6.16.orig/net/d80211/ieee80211_i.h
+++ linux-2.6.16/net/d80211/ieee80211_i.h
@@ -532,6 +532,8 @@ struct ieee80211_local {
* (1 << MODE_*) */
int user_space_mlme;
+ int stop_data_frame_tx; /* Set to 1 to stop transmission
+ * of data frames. */
};
enum ieee80211_link_state_t {
Index: linux-2.6.16/net/d80211/ieee80211_ioctl.c
===================================================================
--- linux-2.6.16.orig/net/d80211/ieee80211_ioctl.c
+++ linux-2.6.16/net/d80211/ieee80211_ioctl.c
@@ -1300,6 +1300,14 @@ static int ieee80211_ioctl_set_radio_ena
return ieee80211_hw_config(dev);
}
+static int ieee80211_ioctl_set_stop_data_frame_tx(struct net_device *dev,
+ int val)
+{
+ struct ieee80211_local *local = dev->ieee80211_ptr;
+ local->stop_data_frame_tx = val;
+ return 0;
+}
+
static int
ieee80211_ioctl_set_tx_queue_params(struct net_device *dev,
struct prism2_hostapd_param *param)
@@ -2612,6 +2620,9 @@ static int ieee80211_ioctl_prism2_param(
case PRISM2_PARAM_USER_SPACE_MLME:
local->user_space_mlme = value;
break;
+ case PRISM2_PARAM_STOP_DATA_FRAME_TX:
+ ret = ieee80211_ioctl_set_stop_data_frame_tx(dev, value);
+ break;
default:
ret = -EOPNOTSUPP;
break;
--
-
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