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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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14
src/arch/i386/interface/pxe/pxe_undi.c
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@@ -652,6 +652,7 @@ PXENV_EXIT_t pxenv_undi_isr ( struct s_PXENV_UNDI_ISR *undi_isr ) {
const void *ll_dest;
const void *ll_source;
uint16_t net_proto;
unsigned int flags;
size_t ll_hlen;
struct net_protocol *net_protocol;
unsigned int prottype;
@@ -753,7 +754,8 @@ PXENV_EXIT_t pxenv_undi_isr ( struct s_PXENV_UNDI_ISR *undi_isr ) {
/* Strip link-layer header */
ll_protocol = pxe_netdev->ll_protocol;
if ( ( rc = ll_protocol->pull ( pxe_netdev, iobuf, &ll_dest,
&ll_source, &net_proto )) !=0){
&ll_source, &net_proto,
&flags ) ) != 0 ) {
/* Assume unknown net_proto and no ll_source */
net_proto = 0;
ll_source = NULL;
@@ -788,14 +790,12 @@ PXENV_EXIT_t pxenv_undi_isr ( struct s_PXENV_UNDI_ISR *undi_isr ) {
undi_isr->Frame.segment = rm_ds;
undi_isr->Frame.offset = __from_data16 ( basemem_packet );
undi_isr->ProtType = prottype;
if ( memcmp ( ll_dest, pxe_netdev->ll_addr,
ll_protocol->ll_addr_len ) == 0 ) {
undi_isr->PktType = P_DIRECTED;
} else if ( memcmp ( ll_dest, pxe_netdev->ll_broadcast,
ll_protocol->ll_addr_len ) == 0 ) {
if ( flags & LL_BROADCAST ) {
undi_isr->PktType = P_BROADCAST;
} else {
} else if ( flags & LL_MULTICAST ) {
undi_isr->PktType = P_MULTICAST;
} else {
undi_isr->PktType = P_DIRECTED;
}
DBGC2 ( &pxenv_undi_isr, " %04x:%04x+%x(%x) %s hlen %d",
undi_isr->Frame.segment, undi_isr->Frame.offset,