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Differential D1469 Diff 8797 head/sys/net/if_arcsubr.c

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head/sys/net/if_arcsubr.c

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arc_output(struct ifnet *ifp, struct mbuf *m, const struct sockaddr *dst, arc_output(struct ifnet *ifp, struct mbuf *m, const struct sockaddr *dst,
struct route *ro) struct route *ro)
{ {
struct arc_header *ah; struct arc_header *ah;
int error; int error;
u_int8_t atype, adst; u_int8_t atype, adst;
int loop_copy = 0; int loop_copy = 0;
int isphds; int isphds;
#ifdef INET #if defined(INET) || defined(INET6)
int is_gw; int is_gw = 0;
#endif #endif
if (!((ifp->if_flags & IFF_UP) && if (!((ifp->if_flags & IFF_UP) &&
(ifp->if_drv_flags & IFF_DRV_RUNNING))) (ifp->if_drv_flags & IFF_DRV_RUNNING)))
return(ENETDOWN); /* m, m1 aren't initialized yet */ return(ENETDOWN); /* m, m1 aren't initialized yet */
error = 0; error = 0;
#if defined(INET) || defined(INET6)
if (ro != NULL && ro->ro_rt != NULL &&
(ro->ro_rt->rt_flags & RTF_GATEWAY) != 0)
is_gw = 1;
#endif
switch (dst->sa_family) { switch (dst->sa_family) {
#ifdef INET #ifdef INET
case AF_INET: case AF_INET:
/* /*
* For now, use the simple IP addr -> ARCnet addr mapping * For now, use the simple IP addr -> ARCnet addr mapping
*/ */
if (m->m_flags & (M_BCAST|M_MCAST)) if (m->m_flags & (M_BCAST|M_MCAST))
adst = arcbroadcastaddr; /* ARCnet broadcast address */ adst = arcbroadcastaddr; /* ARCnet broadcast address */
else if (ifp->if_flags & IFF_NOARP) else if (ifp->if_flags & IFF_NOARP)
adst = ntohl(SIN(dst)->sin_addr.s_addr) & 0xFF; adst = ntohl(SIN(dst)->sin_addr.s_addr) & 0xFF;
else { else {
is_gw = 0;
if (ro != NULL && ro->ro_rt != NULL &&
(ro->ro_rt->rt_flags & RTF_GATEWAY) != 0)
is_gw = 1;
error = arpresolve(ifp, is_gw, m, dst, &adst, NULL); error = arpresolve(ifp, is_gw, m, dst, &adst, NULL);
if (error) if (error)
return (error == EWOULDBLOCK ? 0 : error); return (error == EWOULDBLOCK ? 0 : error);
} }
atype = (ifp->if_flags & IFF_LINK0) ? atype = (ifp->if_flags & IFF_LINK0) ?
ARCTYPE_IP_OLD : ARCTYPE_IP; ARCTYPE_IP_OLD : ARCTYPE_IP;
break; break;
Show All 24 Lines#ifdef INET
} }
break; break;
#endif #endif
#ifdef INET6 #ifdef INET6
case AF_INET6: case AF_INET6:
if ((m->m_flags & M_MCAST) != 0) if ((m->m_flags & M_MCAST) != 0)
adst = arcbroadcastaddr; /* ARCnet broadcast address */ adst = arcbroadcastaddr; /* ARCnet broadcast address */
else else {
error = nd6_storelladdr(ifp, m, dst, (u_char *)&adst, NULL); error = nd6_resolve(ifp, is_gw, m, dst, &adst, NULL);
if (error) if (error != 0)
return (error); return (error == EWOULDBLOCK ? 0 : error);
}
atype = ARCTYPE_INET6; atype = ARCTYPE_INET6;
break; break;
#endif #endif
case AF_UNSPEC: case AF_UNSPEC:
{ {
const struct arc_header *ah; const struct arc_header *ah;
loop_copy = -1; loop_copy = -1;
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