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

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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>
This commit is contained in:
Michael Brown
2011-07-15 18:48:46 +01:00
parent 69b7d57265
commit a667bf044a
17 changed files with 99 additions and 43 deletions
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src/net/ipv4.c
+8 -5
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@@ -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;