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[netdevice] Pass both link-layer addresses in net_tx() and net_rx()

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FCoE requires the use of fabric-provided MAC addresses, which breaks
the assumption that the net device's MAC address is implicitly the
source address for net_tx() and the (unicast) destination address for
net_rx().

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2010-10-07 16:03:16 +01:00
parent d57d49942a
commit 88dd921e24
13 changed files with 60 additions and 31 deletions
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8
src/net/ipv4.c
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@@ -355,7 +355,8 @@ static int ipv4_tx ( struct io_buffer *iobuf,
ntohs ( iphdr->ident ), ntohs ( iphdr->chksum ) );
/* Hand off to link layer */
if ( ( rc = net_tx ( iobuf, netdev, &ipv4_protocol, ll_dest ) ) != 0 ) {
if ( ( rc = net_tx ( iobuf, netdev, &ipv4_protocol, ll_dest,
netdev->ll_addr ) ) != 0 ) {
DBG ( "IPv4 could not transmit packet via %s: %s\n",
netdev->name, strerror ( rc ) );
return rc;
@@ -373,12 +374,15 @@ static int ipv4_tx ( struct io_buffer *iobuf,
*
* @v iobuf I/O buffer
* @v netdev Network device
* @v ll_dest Link-layer destination address
* @v ll_source Link-layer destination source
*
* This function expects an IP4 network datagram. It processes the headers
* and sends it to the transport layer.
*/
static int ipv4_rx ( struct io_buffer *iobuf, struct net_device *netdev __unused,
static int ipv4_rx ( struct io_buffer *iobuf,
struct net_device *netdev __unused,
const void *ll_dest __unused,
const void *ll_source __unused ) {
struct iphdr *iphdr = iobuf->data;
size_t hdrlen;