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authorjlemon <jlemon@FreeBSD.org>2001-06-15 21:00:32 +0000
committerjlemon <jlemon@FreeBSD.org>2001-06-15 21:00:32 +0000
commit3d3ee69a37239c7be7ecc751a3701c3160744ad6 (patch)
tree788001f84c15a8cb27491aa23b90e3be2cc80fb8 /sys/netinet/if_ether.c
parent6f314caece31aef6e6e71ee3a0b4dc54e77c766d (diff)
downloadFreeBSD-src-3d3ee69a37239c7be7ecc751a3701c3160744ad6.zip
FreeBSD-src-3d3ee69a37239c7be7ecc751a3701c3160744ad6.tar.gz
Do not perform arp send/resolve on an interface marked NOARP.
PR: 25006 MFC after: 2 weeks
Diffstat (limited to 'sys/netinet/if_ether.c')
-rw-r--r--sys/netinet/if_ether.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/sys/netinet/if_ether.c b/sys/netinet/if_ether.c
index de5d906..8c8f01f 100644
--- a/sys/netinet/if_ether.c
+++ b/sys/netinet/if_ether.c
@@ -368,7 +368,7 @@ arpresolve(ac, rt, m, dst, desten, rt0)
register u_char *desten;
struct rtentry *rt0;
{
- register struct llinfo_arp *la = 0;
+ struct llinfo_arp *la = 0;
struct sockaddr_dl *sdl;
if (m->m_flags & M_BCAST) { /* broadcast */
@@ -404,6 +404,14 @@ arpresolve(ac, rt, m, dst, desten, rt0)
return 1;
}
/*
+ * If ARP is disabled on this interface, stop.
+ * XXX
+ * Probably should not allocate empty llinfo struct if we are
+ * not going to be sending out an arp request.
+ */
+ if (ac->ac_if.if_flags & IFF_NOARP)
+ return (0);
+ /*
* There is an arptab entry, but no ethernet address
* response yet. Replace the held mbuf with this
* latest one.
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