[netdevice] Allow link layer to report broadcast/multicast packets via pull()

Allow the link layer to directly report whether or not a packet is
multicast or broadcast at the time of calling pull(), rather than
relying on heuristics to determine this at a later stage.

Signed-off-by: Michael Brown <mcb30@ipxe.org>

1 files changed, 8 insertions, 5 deletions

diff --git a/src/net/ipv4.c b/src/net/ipv4.c
index 5bb48f61c..01eca09d8 100644
--- a/src/net/ipv4.c
+++ b/src/net/ipv4.c
@@ -381,10 +381,12 @@ static int ipv4_tx ( struct io_buffer *iobuf,
 /**
  * Process incoming packets
  *
- * @v iobuf	I/O buffer
- * @v netdev	Network device
- * @v ll_dest	Link-layer destination address
- * @v ll_source	Link-layer destination source
+ * @v iobuf		I/O buffer
+ * @v netdev		Network device
+ * @v ll_dest		Link-layer destination address
+ * @v ll_source		Link-layer destination source
+ * @v flags		Packet flags
+ * @ret rc		Return status code
  *
  * This function expects an IP4 network datagram. It processes the headers 
  * and sends it to the transport layer.
@@ -392,7 +394,8 @@ static int ipv4_tx ( struct io_buffer *iobuf,
 static int ipv4_rx ( struct io_buffer *iobuf,
 		     struct net_device *netdev __unused,
 		     const void *ll_dest __unused,
-		     const void *ll_source __unused ) {
+		     const void *ll_source __unused,
+		     unsigned int flags __unused ) {
 	struct iphdr *iphdr = iobuf->data;
 	size_t hdrlen;
 	size_t len;