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Make sure that prefixes get purged. This fixes PR kern/21189,

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PR kern/25968 and PR kern/27873.
This commit is contained in:
tron 2005-04-03 11:02:27 +00:00
parent fc38d3f3ac
commit 6589458a53
1 changed files with 9 additions and 2 deletions
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11
sys/netinet6/nd6.c
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@ -1,4 +1,4 @@
/* $NetBSD: nd6.c,v 1.91 2004/12/04 16:10:25 peter Exp $ */
/* $NetBSD: nd6.c,v 1.92 2005/04/03 11:02:27 tron Exp $ */
/* $KAME: nd6.c,v 1.279 2002/06/08 11:16:51 itojun Exp $ */
/*
@ -31,7 +31,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: nd6.c,v 1.91 2004/12/04 16:10:25 peter Exp $");
__KERNEL_RCSID(0, "$NetBSD: nd6.c,v 1.92 2005/04/03 11:02:27 tron Exp $");
#include "opt_ipsec.h"
@ -636,6 +636,13 @@ nd6_purge(ifp)
for (pr = nd_prefix.lh_first; pr; pr = npr) {
npr = pr->ndpr_next;
if (pr->ndpr_ifp == ifp) {
/*
* Because if_detach() does *not* release prefixes
* while purging addresses the reference count will
* still be above zero. We therefore reset it to
* make sure that the prefix really gets purged.
*/
pr->ndpr_refcnt = 0;
/*
* Previously, pr->ndpr_addr is removed as well,
* but I strongly believe we don't have to do it.