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Fill in the corresponding ether address of multicast and broadcast

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pseudo-``ARP entries'' so arp(8) doesn't show them as `unresolved'.
This commit is contained in:
Garrett Wollman 1996-02-05 18:04:30 +00:00
parent abc8ea162c
commit cbb0b46ab7
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=13926
1 changed files with 17 additions and 1 deletions
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18
sys/netinet/if_ether.c
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@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* @(#)if_ether.c 8.1 (Berkeley) 6/10/93
* $Id: if_ether.c,v 1.25 1995/12/20 21:53:51 wollman Exp $
* $Id: if_ether.c,v 1.26 1996/01/24 21:09:58 phk Exp $
*/
/*
@ -209,6 +209,22 @@ arp_rtrequest(req, rt, sa)
la->la_rt = rt;
rt->rt_flags |= RTF_LLINFO;
LIST_INSERT_HEAD(&llinfo_arp, la, la_le);
/*
* This keeps the multicast addresses from showing up
* in `arp -a' listings as unresolved. It's not actually
* functional. Then the same for broadcast.
*/
if (IN_MULTICAST(ntohl(SIN(rt_key(rt))->sin_addr.s_addr))) {
ETHER_MAP_IP_MULTICAST(&SIN(rt_key(rt))->sin_addr,
LLADDR(SDL(gate)));
SDL(gate)->sdl_alen = 6;
}
if (in_broadcast(SIN(rt_key(rt))->sin_addr, rt->rt_ifp)) {
memcpy(LLADDR(SDL(gate)), etherbroadcastaddr, 6);
SDL(gate)->sdl_alen = 6;
}
if (SIN(rt_key(rt))->sin_addr.s_addr ==
(IA_SIN(rt->rt_ifa))->sin_addr.s_addr) {
/*