diff options
Diffstat (limited to 'patches/linux-2.6.16-rc5/net-csum.patch')
| -rw-r--r-- | patches/linux-2.6.16-rc5/net-csum.patch | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/patches/linux-2.6.16-rc5/net-csum.patch b/patches/linux-2.6.16-rc5/net-csum.patch new file mode 100644 index 0000000000..ef5e9585f7 --- /dev/null +++ b/patches/linux-2.6.16-rc5/net-csum.patch @@ -0,0 +1,41 @@ +diff -pruN ../pristine-linux-2.6.16-rc5/net/ipv4/netfilter/ip_nat_proto_tcp.c ./net/ipv4/netfilter/ip_nat_proto_tcp.c +--- ../pristine-linux-2.6.16-rc5/net/ipv4/netfilter/ip_nat_proto_tcp.c 2006-02-27 15:47:38.000000000 +0000 ++++ ./net/ipv4/netfilter/ip_nat_proto_tcp.c 2006-02-27 15:55:25.000000000 +0000 +@@ -129,10 +129,14 @@ tcp_manip_pkt(struct sk_buff **pskb, + if (hdrsize < sizeof(*hdr)) + return 1; + +- hdr->check = ip_nat_cheat_check(~oldip, newip, ++ if ((*pskb)->proto_csum_blank) { ++ hdr->check = ip_nat_cheat_check(oldip, ~newip, hdr->check); ++ } else { ++ hdr->check = ip_nat_cheat_check(~oldip, newip, + ip_nat_cheat_check(oldport ^ 0xFFFF, + newport, + hdr->check)); ++ } + return 1; + } + +diff -pruN ../pristine-linux-2.6.16-rc5/net/ipv4/netfilter/ip_nat_proto_udp.c ./net/ipv4/netfilter/ip_nat_proto_udp.c +--- ../pristine-linux-2.6.16-rc5/net/ipv4/netfilter/ip_nat_proto_udp.c 2006-02-27 15:47:38.000000000 +0000 ++++ ./net/ipv4/netfilter/ip_nat_proto_udp.c 2006-02-27 15:55:25.000000000 +0000 +@@ -113,11 +113,16 @@ udp_manip_pkt(struct sk_buff **pskb, + newport = tuple->dst.u.udp.port; + portptr = &hdr->dest; + } +- if (hdr->check) /* 0 is a special case meaning no checksum */ +- hdr->check = ip_nat_cheat_check(~oldip, newip, ++ if (hdr->check) { /* 0 is a special case meaning no checksum */ ++ if ((*pskb)->proto_csum_blank) { ++ hdr->check = ip_nat_cheat_check(oldip, ~newip, hdr->check); ++ } else { ++ hdr->check = ip_nat_cheat_check(~oldip, newip, + ip_nat_cheat_check(*portptr ^ 0xFFFF, + newport, + hdr->check)); ++ } ++ } + *portptr = newport; + return 1; + } |