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ether_output() & ether_input() take ether_type as a net-short.

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AF_UNSPEC does not swap byte order of ether_type.
NOTE: this requires driver changes
This commit is contained in:
deraadt 1994-01-23 23:41:14 +00:00
parent 031bfecc25
commit b8fdadd662
1 changed files with 10 additions and 7 deletions
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17
sys/net/if_ethersubr.c
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@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* from: @(#)if_ethersubr.c 7.13 (Berkeley) 4/20/91
* $Id: if_ethersubr.c,v 1.4 1993/12/17 00:12:11 mycroft Exp $
* $Id: if_ethersubr.c,v 1.5 1994/01/23 23:41:14 deraadt Exp $
*/
#include <sys/param.h>
@ -87,7 +87,7 @@ ether_output(ifp, m0, dst, rt)
struct sockaddr *dst;
struct rtentry *rt;
{
short type;
u_short type;
int s, error = 0;
u_char edst[6];
struct in_addr idst;
@ -210,7 +210,8 @@ ether_output(ifp, m0, dst, rt)
case AF_UNSPEC:
eh = (struct ether_header *)dst->sa_data;
bcopy((caddr_t)eh->ether_dhost, (caddr_t)edst, sizeof (edst));
type = eh->ether_type;
/* AF_UNSPEC doesn't swap the byte order of the ether_type */
type = ntohs(eh->ether_type);
goto gottype;
default:
@ -292,6 +293,7 @@ ether_input(ifp, eh, m)
{
register struct ifqueue *inq;
register struct llc *l;
u_short etype;
int s;
ifp->if_lastchange = time;
@ -314,7 +316,8 @@ ether_input(ifp, eh, m)
if (m->m_flags & (M_BCAST|M_MCAST))
ifp->if_imcasts++;
switch (eh->ether_type) {
etype = ntohs(eh->ether_type);
switch (etype) {
#ifdef INET
case ETHERTYPE_IP:
schednetisr(NETISR_IP);
@ -334,7 +337,7 @@ ether_input(ifp, eh, m)
#endif
default:
#ifdef ISO
if (eh->ether_type > ETHERMTU)
if (etype > ETHERMTU)
goto dropanyway;
l = mtod(m, struct llc *);
switch (l->llc_control) {
@ -343,8 +346,8 @@ ether_input(ifp, eh, m)
if ((l->llc_dsap == LLC_ISO_LSAP) &&
(l->llc_ssap == LLC_ISO_LSAP)) {
/* LSAP for ISO */
if (m->m_pkthdr.len > eh->ether_type)
m_adj(m, eh->ether_type - m->m_pkthdr.len);
if (m->m_pkthdr.len > etype)
m_adj(m, etype - m->m_pkthdr.len);
m->m_data += 3; /* XXX */
m->m_len -= 3; /* XXX */
m->m_pkthdr.len -= 3; /* XXX */