From: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
To: netfilter-devel@vger.kernel.org
Cc: jm@dilly.me, fw@strlen.de, yoshfuji@linux-ipv6.org
Subject: [RFC PATCH 2/4] netfilter: ip6t_NPT: Use csum_partial().
Date: Sun, 27 Jan 2013 03:36:48 +0900 [thread overview]
Message-ID: <51042240.1020606@linux-ipv6.org> (raw)
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
---
net/ipv6/netfilter/ip6t_NPT.c | 11 +++--------
1 file changed, 3 insertions(+), 8 deletions(-)
diff --git a/net/ipv6/netfilter/ip6t_NPT.c b/net/ipv6/netfilter/ip6t_NPT.c
index 3ff281b..b1bf3ed 100644
--- a/net/ipv6/netfilter/ip6t_NPT.c
+++ b/net/ipv6/netfilter/ip6t_NPT.c
@@ -17,18 +17,13 @@
static int ip6t_npt_checkentry(const struct xt_tgchk_param *par)
{
struct ip6t_npt_tginfo *npt = par->targinfo;
- __wsum src_sum = 0, dst_sum = 0;
- unsigned int i;
+ __wsum src_sum, dst_sum;
if (npt->src_pfx_len > 64 || npt->dst_pfx_len > 64)
return -EINVAL;
- for (i = 0; i < ARRAY_SIZE(npt->src_pfx.in6.s6_addr16); i++) {
- src_sum = csum_add(src_sum,
- (__force __wsum)npt->src_pfx.in6.s6_addr16[i]);
- dst_sum = csum_add(dst_sum,
- (__force __wsum)npt->dst_pfx.in6.s6_addr16[i]);
- }
+ src_sum = csum_partial(&npt->src_pfx.in6, sizeof(npt->src_pfx.in6), 0);
+ dst_sum = csum_partial(&npt->dst_pfx.in6, sizeof(npt->dst_pfx.in6), 0);
npt->adjustment = csum_fold(csum_sub(src_sum, dst_sum));
return 0;
--
1.7.9.5
next reply other threads:[~2013-01-26 18:36 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-26 18:36 YOSHIFUJI Hideaki [this message]
2013-02-07 18:16 ` [RFC PATCH 2/4] netfilter: ip6t_NPT: Use csum_partial() Pablo Neira Ayuso
2013-03-15 11:52 ` Pablo Neira Ayuso
-- strict thread matches above, loose matches on Subject: below --
2013-01-26 18:36 YOSHIFUJI Hideaki
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