From: pablo@netfilter.org
To: netfilter-devel@vger.kernel.org
Cc: davem@davemloft.net, netdev@vger.kernel.org
Subject: [PATCH 4/5] netfilter: ip6t_NPT: Fix prefix mangling
Date: Sat, 9 Feb 2013 13:03:59 +0100 [thread overview]
Message-ID: <1360411440-6526-5-git-send-email-pablo@netfilter.org> (raw)
In-Reply-To: <1360411440-6526-1-git-send-email-pablo@netfilter.org>
From: YOSHIFUJI Hideaki / 吉藤英明 <yoshfuji@linux-ipv6.org>
Make sure only the bits that are part of the prefix are mangled.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
net/ipv6/netfilter/ip6t_NPT.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/ipv6/netfilter/ip6t_NPT.c b/net/ipv6/netfilter/ip6t_NPT.c
index 68788c8..87b759c 100644
--- a/net/ipv6/netfilter/ip6t_NPT.c
+++ b/net/ipv6/netfilter/ip6t_NPT.c
@@ -51,7 +51,7 @@ static bool ip6t_npt_map_pfx(const struct ip6t_npt_tginfo *npt,
idx = i / 32;
addr->s6_addr32[idx] &= mask;
- addr->s6_addr32[idx] |= npt->dst_pfx.in6.s6_addr32[idx];
+ addr->s6_addr32[idx] |= ~mask & npt->dst_pfx.in6.s6_addr32[idx];
}
if (pfx_len <= 48)
--
1.7.10.4
--
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next prev parent reply other threads:[~2013-02-09 12:03 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-02-09 12:03 [PATCH 0/5] Netfilter/IPVS fixes for 3.8-rc7 pablo
2013-02-09 12:03 ` [PATCH 1/5] ipvs: freeing uninitialized pointer on error pablo
2013-02-09 12:03 ` [PATCH 2/5] ipvs: sctp: fix checksumming on snat and dnat handlers pablo
2013-02-09 12:03 ` [PATCH 3/5] netfilter: ip6t_NPT: Fix adjustment calculation pablo
2013-02-09 12:03 ` pablo [this message]
2013-02-09 12:04 ` [PATCH 5/5] netfilter: ip6t_NPT: Ensure to check lower part of prefixes are zero pablo
2013-02-11 1:44 ` [PATCH 0/5] Netfilter/IPVS fixes for 3.8-rc7 David Miller
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