diff options
| author | Patrick McHardy <kaber@trash.net> | 2006-10-12 14:08:26 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-10-15 23:14:08 -0700 |
| commit | a9f54596fa20be3edefaa0b24c8714edb945eeaa (patch) | |
| tree | 735fb43f1fa5b9ad2fd6d49387c279f2f663a5d3 /net/ipv4/netfilter/ipt_TOS.c | |
| parent | f603b6ec50faabbabde53ae2e2ce774968524c40 (diff) | |
[NETFILTER]: ipt_ECN/ipt_TOS: fix incorrect checksum update
Even though the tos field is only a single byte large, the values need to
be converted to net-endian for the checkum update so they are in the
corrent byte position. Also fix incorrect endian annotations.
Reported by Stephane Chazelas <Stephane_Chazelas@yahoo.fr>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/netfilter/ipt_TOS.c')
| -rw-r--r-- | net/ipv4/netfilter/ipt_TOS.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/net/ipv4/netfilter/ipt_TOS.c b/net/ipv4/netfilter/ipt_TOS.c index 6b8b14ccc3d..83b80b3a5d2 100644 --- a/net/ipv4/netfilter/ipt_TOS.c +++ b/net/ipv4/netfilter/ipt_TOS.c @@ -30,7 +30,7 @@ target(struct sk_buff **pskb, { const struct ipt_tos_target_info *tosinfo = targinfo; struct iphdr *iph = (*pskb)->nh.iph; - __be16 oldtos; + u_int16_t oldtos; if ((iph->tos & IPTOS_TOS_MASK) != tosinfo->tos) { if (!skb_make_writable(pskb, sizeof(struct iphdr))) @@ -38,8 +38,8 @@ target(struct sk_buff **pskb, iph = (*pskb)->nh.iph; oldtos = iph->tos; iph->tos = (iph->tos & IPTOS_PREC_MASK) | tosinfo->tos; - iph->check = nf_csum_update(oldtos ^ htons(0xFFFF), iph->tos, - iph->check); + iph->check = nf_csum_update(htons(oldtos) ^ htons(0xFFFF), + htons(iph->tos), iph->check); } return IPT_CONTINUE; } |