[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>

[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>
Samuel Ortiz · David S. Miller
1 parent 89da1ecf54
Showing 2 changed files with 8 additions and 0 deletions Side-by-side Diff
include/linux/irda.h
net/irda/irlap_frame.c
@@ -242,6 +242,7 @@
 /* IrDA modes */
 #define IRDA_MODE_PRIMARY   0x1
 #define IRDA_MODE_SECONDARY 0x2
+#define IRDA_MODE_MONITOR   0x4
  
 #endif /* KERNEL_IRDA_H */
@@ -101,6 +101,13 @@
  
 	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);
 }
...	...	@@ -242,6 +242,7 @@
242	242	/* IrDA modes */
243	243	#define IRDA_MODE_PRIMARY 0x1
244	244	#define IRDA_MODE_SECONDARY 0x2
	245	+#define IRDA_MODE_MONITOR 0x4
245	246
246	247	#endif /* KERNEL_IRDA_H */
...	...	@@ -101,6 +101,13 @@
101	101
102	102	irlap_insert_info(self, skb);
103	103
	104	+ if (unlikely(self->mode & IRDA_MODE_MONITOR)) {
	105	+ IRDA_DEBUG(3, "%s(): %s is in monitor mode\n", __FUNCTION__,
	106	+ self->netdev->name);
	107	+ dev_kfree_skb(skb);
	108	+ return;
	109	+ }
	110	+
104	111	dev_queue_xmit(skb);
105	112	}
106	113