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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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7
src/net/vlan.c
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@@ -91,12 +91,13 @@ static int vlan_transmit ( struct net_device *netdev,
const void *ll_dest;
const void *ll_source;
uint16_t net_proto;
unsigned int flags;
int rc;
/* Strip link-layer header and preserve link-layer header fields */
ll_protocol = netdev->ll_protocol;
if ( ( rc = ll_protocol->pull ( netdev, iobuf, &ll_dest, &ll_source,
&net_proto ) ) != 0 ) {
&net_proto, &flags ) ) != 0 ) {
DBGC ( netdev, "VLAN %s could not parse link-layer header: "
"%s\n", netdev->name, strerror ( rc ) );
return rc;
@@ -214,10 +215,12 @@ struct net_device * vlan_find ( struct net_device *trunk, unsigned int tag ) {
* @v trunk Trunk network device
* @v ll_dest Link-layer destination address
* @v ll_source Link-layer source address
* @v flags Packet flags
* @ret rc Return status code
*/
static int vlan_rx ( struct io_buffer *iobuf, struct net_device *trunk,
const void *ll_dest, const void *ll_source ) {
const void *ll_dest, const void *ll_source,
unsigned int flags __unused ) {
struct vlan_header *vlanhdr = iobuf->data;
struct net_device *netdev;
struct ll_protocol *ll_protocol;