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PR/991: Darren Reed: Add a sysctl (checkinteface) to implement this. This 

implementation is taken from FreeBSD, but we default to off.
XXX: We should really do this on a per ifaddr basis as jason suggested.
This commit is contained in:
dogcow 2003-04-12 00:17:49 +00:00
parent 590fe82698
commit 6045dfd329
1 changed files with 5 additions and 3 deletions
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8
sys/netinet/in.h
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@ -1,4 +1,4 @@
/* $NetBSD: in.h,v 1.59 2003/01/27 09:57:09 kleink Exp $ */
/* $NetBSD: in.h,v 1.60 2003/04/12 00:17:49 dogcow Exp $ */
/*
* Copyright (c) 1982, 1986, 1990, 1993
@ -382,8 +382,9 @@ struct ip_mreq {
#define IPCTL_LOWPORTMIN 16 /* minimum reserved port */
#define IPCTL_LOWPORTMAX 17 /* maximum reserved port */
#define IPCTL_MAXFRAGPACKETS 18 /* max packets reassembly queue */
#define IPCTL_GRE_TTL 19 /* default TTL for gre encap packet */
#define IPCTL_MAXID 20
#define IPCTL_GRE_TTL 19 /* default TTL for gre encap packet */
#define IPCTL_CHECKINTERFACE 20 /* drop pkts in from 'wrong' iface */
#define IPCTL_MAXID 21
#define IPCTL_NAMES { \
{ 0, 0 }, \
@ -406,6 +407,7 @@ struct ip_mreq {
{ "lowportmax", CTLTYPE_INT }, \
{ "maxfragpackets", CTLTYPE_INT }, \
{ "grettl", CTLTYPE_INT }, \
{ "checkinterface", CTLTYPE_INT }, \
}
#endif /* !_POSIX_C_SOURCE && !_XOPEN_SOURCE */