[IrDA]: Monitor mode.

Through the IrDA netlink set mode command, we switch to IrDA monitor mode, where one IrLAP instance receives all the packets on the media, without ever responding to them. Signed-off-by: Samuel Ortiz <samuel@sortiz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
git-mirror · Jul 11, 2007 · 4117252 · 4117252
1 parent 89da1ec
commit 4117252
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diff --git a/include/linux/irda.h b/include/linux/irda.h
@@ -242,6 +242,7 @@ enum nl80211_attrs {
 /* IrDA modes */
 #define IRDA_MODE_PRIMARY   0x1
 #define IRDA_MODE_SECONDARY 0x2
+#define IRDA_MODE_MONITOR   0x4
 
 #endif /* KERNEL_IRDA_H */
 

diff --git a/net/irda/irlap_frame.c b/net/irda/irlap_frame.c
@@ -101,6 +101,13 @@ void irlap_queue_xmit(struct irlap_cb *self, struct sk_buff *skb)
 
 	irlap_insert_info(self, skb);
 
+	if (unlikely(self->mode & IRDA_MODE_MONITOR)) {
+		IRDA_DEBUG(3, "%s(): %s is in monitor mode\n", __FUNCTION__,
+			   self->netdev->name);
+		dev_kfree_skb(skb);
+		return;
+	}
+
 	dev_queue_xmit(skb);
 }