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Netcon's changes for their extended NS support. This only effects

Browse source 
people compiling with NS, so the effects on everyone else are nil.
This commit is contained in:
Jordan K. Hubbard 1996-10-17 17:16:58 +00:00
parent 17a6a9e3cc
commit 88e038fe4a
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=18991
1 changed files with 72 additions and 11 deletions
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83
sys/net/if_ethersubr.c
View file

@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* @(#)if_ethersubr.c 8.1 (Berkeley) 6/10/93
* $Id: if_ethersubr.c,v 1.23 1996/08/04 11:45:37 phk Exp $
* $Id: if_ethersubr.c,v 1.24 1996/08/05 14:03:10 phk Exp $
*/
#include <sys/param.h>
@ -68,6 +68,9 @@
#ifdef NS
#include <netns/ns.h>
#include <netns/ns_if.h>
extern ushort ns_nettype;
int ether_outputdebug = 0;
int ether_inputdebug = 0;
#endif
#ifdef ISO
@ -117,13 +120,14 @@ ether_output(ifp, m0, dst, rt0)
{
short type;
int s, error = 0;
u_char edst[6];
register struct mbuf *m = m0;
u_char *cp, edst[6];
register struct mbuf *m2, *m = m0;
register struct rtentry *rt;
struct mbuf *mcopy = (struct mbuf *)0;
register struct ether_header *eh;
int off, len = m->m_pkthdr.len;
struct arpcom *ac = (struct arpcom *)ifp;
register struct ifqueue *inq;
#ifdef NETATALK
struct at_ifaddr *aa;
#endif NETATALK
@ -220,16 +224,57 @@ ether_output(ifp, m0, dst, rt0)
#endif NETATALK
#ifdef NS
case AF_NS:
type = htons(ETHERTYPE_NS);
switch(ns_nettype){
default:
case 0x8137: /* Novell Ethernet_II Ethernet TYPE II */
type = 0x8137;
break;
case 0x0: /* Novell 802.3 */
type = htons( m->m_pkthdr.len);
break;
case 0xe0e0: /* Novell 802.2 and Token-Ring */
M_PREPEND(m, 3, M_WAIT);
type = htons( m->m_pkthdr.len);
cp = mtod(m, u_char *);
*cp++ = 0xE0;
*cp++ = 0xE0;
*cp++ = 0x03;
break;
}
bcopy((caddr_t)&(((struct sockaddr_ns *)dst)->sns_addr.x_host),
(caddr_t)edst, sizeof (edst));
if (!bcmp((caddr_t)edst, (caddr_t)&ns_thishost, sizeof(edst)))
return (looutput(ifp, m, dst, rt));
if (!bcmp((caddr_t)edst, (caddr_t)&ns_thishost, sizeof(edst))){
m->m_pkthdr.rcvif = ifp;
schednetisr(NETISR_NS);
inq = &nsintrq;
s = splimp();
if (IF_QFULL(inq)) {
IF_DROP(inq);
m_freem(m);
} else
IF_ENQUEUE(inq, m);
splx(s);
return (error);
}
if (!bcmp((caddr_t)edst, (caddr_t)&ns_broadhost, sizeof(edst))){
m2 = m_copy(m, 0, (int)M_COPYALL);
m2->m_pkthdr.rcvif = ifp;
schednetisr(NETISR_NS);
inq = &nsintrq;
s = splimp();
if (IF_QFULL(inq)) {
IF_DROP(inq);
m_freem(m2);
} else
IF_ENQUEUE(inq, m2);
splx(s);
}
/* If broadcasting on a simplex interface, loopback a copy */
if ((m->m_flags & M_BCAST) && (ifp->if_flags & IFF_SIMPLEX))
if ((m->m_flags & M_BCAST) && (ifp->if_flags & IFF_SIMPLEX)){
mcopy = m_copy(m, 0, (int)M_COPYALL);
}
break;
#endif
#endif /* NS */
#ifdef ISO
case AF_ISO: {
int snpalen;
@ -379,7 +424,7 @@ ether_input(ifp, eh, m)
struct mbuf *m;
{
register struct ifqueue *inq;
u_short ether_type;
u_short ether_type, *checksum;
int s;
#if defined (ISO) || defined (LLC) || defined(NETATALK)
register struct llc *l;
@ -419,11 +464,12 @@ ether_input(ifp, eh, m)
break;
#endif
#ifdef NS
case ETHERTYPE_NS:
case 0x8137: /* Novell Ethernet_II Ethernet TYPE II */
schednetisr(NETISR_NS);
inq = &nsintrq;
break;
#endif
#endif /* NS */
#ifdef NETATALK
case ETHERTYPE_AT:
schednetisr(NETISR_ATALK);
@ -435,6 +481,21 @@ ether_input(ifp, eh, m)
return;
#endif NETATALK
default:
#ifdef NS
checksum = mtod(m, ushort *);
/* Novell 802.3 */
if ((ether_type <= ETHERMTU) &&
((*checksum == 0xffff) || (*checksum == 0xE0E0))){
if(*checksum == 0xE0E0) {
m->m_pkthdr.len -= 3;
m->m_len -= 3;
m->m_data += 3;
}
schednetisr(NETISR_NS);
inq = &nsintrq;
break;
}
#endif /* NS */
#if defined (ISO) || defined (LLC) || defined(NETATALK)
if (ether_type > ETHERMTU)
goto dropanyway;