void
at1intr(netmsg_t msg)
{
struct mbuf *m = msg->packet.nm_packet;
struct elaphdr *elhp, elh;
get_mplock();
/*
* Phase 1 packet handling
*/
if (m->m_len < SZ_ELAPHDR && ((m = m_pullup(m, SZ_ELAPHDR)) == 0)) {
ddpstat.ddps_tooshort++;
goto out;
}
/*
* This seems a little dubious, but I don't know phase 1 so leave it.
*/
elhp = mtod(m, struct elaphdr *);
m_adj(m, SZ_ELAPHDR);
if (elhp->el_type == ELAP_DDPEXTEND) {
ddp_input(m, m->m_pkthdr.rcvif, NULL, 1);
} else {
bcopy((caddr_t)elhp, (caddr_t)&elh, SZ_ELAPHDR);
ddp_input(m, m->m_pkthdr.rcvif, &elh, 1);
}
out:
rel_mplock();
/* msg was embedded in the mbuf, do not reply! */
}
/*
* Could probably merge these two code segments a little better...
*/
void
at2intr(netmsg_t msg)
{
struct mbuf *m = msg->packet.nm_packet;
/*
* Phase 2 packet handling
*/
get_mplock();
ddp_input(m, m->m_pkthdr.rcvif, NULL, 2);
rel_mplock();
/* msg was embedded in the mbuf, do not reply! */
}
/*
* Could probably merge these two code segments a little better...
*/
static void
atintr( void )
{
struct elaphdr *elhp, elh;
struct ifnet *ifp;
struct mbuf *m;
int s;
/*
* First pull off all the phase 2 packets.
*/
for (;;) {
s = splimp();
IF_DEQUEUE( &atintrq2, m );
splx( s );
if ( m == 0 ) { /* no more queued packets */
break;
}
ifp = m->m_pkthdr.rcvif;
ddp_input( m, ifp, (struct elaphdr *)NULL, 2 );
}
/*
* Then pull off all the phase 1 packets.
*/
for (;;) {
s = splimp();
IF_DEQUEUE( &atintrq1, m );
splx( s );
if ( m == 0 ) { /* no more queued packets */
break;
}
ifp = m->m_pkthdr.rcvif;
if ( m->m_len < SZ_ELAPHDR &&
(( m = m_pullup( m, SZ_ELAPHDR )) == 0 )) {
ddpstat.ddps_tooshort++;
continue;
}
/*
* this seems a little dubios, but I don't know phase 1 so leave it.
*/
elhp = mtod( m, struct elaphdr *);
m_adj( m, SZ_ELAPHDR );
if ( elhp->el_type == ELAP_DDPEXTEND ) {
ddp_input( m, ifp, (struct elaphdr *)NULL, 1 );
} else {
bcopy((caddr_t)elhp, (caddr_t)&elh, SZ_ELAPHDR );
ddp_input( m, ifp, &elh, 1 );
}
}
return;
}
/*
* Could probably merge these two code segments a little better...
*/
void
atintr()
{
struct elaphdr *elhp, elh;
struct ifnet *ifp;
struct mbuf *m;
struct at_ifaddr *aa;
int s;
for (;;) {
s = splimp();
IF_DEQUEUE( &atintrq2, m );
splx( s );
if ( m == 0 ) { /* no more queued packets */
break;
}
ifp = m->m_pkthdr.rcvif;
for ( aa = at_ifaddr; aa; aa = aa->aa_next ) {
if ( aa->aa_ifp == ifp && ( aa->aa_flags & AFA_PHASE2 )) {
break;
}
}
if ( aa == NULL ) { /* ifp not an appletalk interface */
m_freem( m );
continue;
}
ddp_input( m, ifp, (struct elaphdr *)NULL, 2 );
}
for (;;) {
s = splimp();
IF_DEQUEUE( &atintrq1, m );
splx( s );
if ( m == 0 ) { /* no more queued packets */
break;
}
ifp = m->m_pkthdr.rcvif;
for ( aa = at_ifaddr; aa; aa = aa->aa_next ) {
if ( aa->aa_ifp == ifp && ( aa->aa_flags & AFA_PHASE2 ) == 0 ) {
break;
}
}
if ( aa == NULL ) { /* ifp not an appletalk interface */
m_freem( m );
continue;
}
if ( m->m_len < SZ_ELAPHDR &&
(( m = m_pullup( m, SZ_ELAPHDR )) == 0 )) {
ddpstat.ddps_tooshort++;
continue;
}
elhp = mtod( m, struct elaphdr *);
m_adj( m, SZ_ELAPHDR );
if ( elhp->el_type == ELAP_DDPEXTEND ) {
ddp_input( m, ifp, (struct elaphdr *)NULL, 1 );
} else {
bcopy((caddr_t)elhp, (caddr_t)&elh, SZ_ELAPHDR );
ddp_input( m, ifp, &elh, 1 );
}
}
return;
}
