diff options
| author | Patrick McHardy <kaber@trash.net> | 2013-07-28 20:54:10 (GMT) |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2013-07-31 17:54:51 (GMT) |
| commit | 2d89c68ac78ae432038ef23371d2fa949d725d43 (patch) | |
| tree | 9eb19fc7550976ff633849e95c752a34f19df4f2 /net/netfilter/nf_conntrack_proto_tcp.c | |
| parent | 0658cdc8f3babb4a441f5a803a0b644fafcbf9ef (diff) | |
| download | linux-fsl-qoriq-2d89c68ac78ae432038ef23371d2fa949d725d43.tar.xz | |
netfilter: nf_nat: change sequence number adjustments to 32 bits
Using 16 bits is too small, when many adjustments happen the offsets might
overflow and break the connection.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/netfilter/nf_conntrack_proto_tcp.c')
| -rw-r--r-- | net/netfilter/nf_conntrack_proto_tcp.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/netfilter/nf_conntrack_proto_tcp.c b/net/netfilter/nf_conntrack_proto_tcp.c index 7dcc376..8f308d8 100644 --- a/net/netfilter/nf_conntrack_proto_tcp.c +++ b/net/netfilter/nf_conntrack_proto_tcp.c @@ -496,7 +496,7 @@ static void tcp_sack(const struct sk_buff *skb, unsigned int dataoff, } #ifdef CONFIG_NF_NAT_NEEDED -static inline s16 nat_offset(const struct nf_conn *ct, +static inline s32 nat_offset(const struct nf_conn *ct, enum ip_conntrack_dir dir, u32 seq) { @@ -525,7 +525,7 @@ static bool tcp_in_window(const struct nf_conn *ct, struct ip_ct_tcp_state *receiver = &state->seen[!dir]; const struct nf_conntrack_tuple *tuple = &ct->tuplehash[dir].tuple; __u32 seq, ack, sack, end, win, swin; - s16 receiver_offset; + s32 receiver_offset; bool res; /* |