diff options
| author | Eric W. Biederman <ebiederm@xmission.com> | 2009-11-17 01:01:34 -0800 |
|---|---|---|
| committer | Eric W. Biederman <ebiederm@xmission.com> | 2009-11-17 01:01:34 -0800 |
| commit | bb9074ff58fe745e4f244f76209241909c82ec9c (patch) | |
| tree | cf6be00ab88b1e315f6b74a896a370440f677599 /net/ipv4/netfilter | |
| parent | 4739a9748e1bd7459f22f7e94e7d85710ca83954 (diff) | |
| parent | 156171c71a0dc4bce12b4408bb1591f8fe32dc1a (diff) | |
Merge commit 'v2.6.32-rc7'
Resolve the conflict between v2.6.32-rc7 where dn_def_dev_handler
gets a small bug fix and the sysctl tree where I am removing all
sysctl strategy routines.
Diffstat (limited to 'net/ipv4/netfilter')
| -rw-r--r-- | net/ipv4/netfilter/nf_nat_core.c | 3 | ||||
| -rw-r--r-- | net/ipv4/netfilter/nf_nat_helper.c | 34 |
2 files changed, 26 insertions, 11 deletions
diff --git a/net/ipv4/netfilter/nf_nat_core.c b/net/ipv4/netfilter/nf_nat_core.c index 68afc6ecd343..fe1a64479dd0 100644 --- a/net/ipv4/netfilter/nf_nat_core.c +++ b/net/ipv4/netfilter/nf_nat_core.c @@ -750,6 +750,8 @@ static int __init nf_nat_init(void) BUG_ON(nfnetlink_parse_nat_setup_hook != NULL); rcu_assign_pointer(nfnetlink_parse_nat_setup_hook, nfnetlink_parse_nat_setup); + BUG_ON(nf_ct_nat_offset != NULL); + rcu_assign_pointer(nf_ct_nat_offset, nf_nat_get_offset); return 0; cleanup_extend: @@ -764,6 +766,7 @@ static void __exit nf_nat_cleanup(void) nf_ct_extend_unregister(&nat_extend); rcu_assign_pointer(nf_nat_seq_adjust_hook, NULL); rcu_assign_pointer(nfnetlink_parse_nat_setup_hook, NULL); + rcu_assign_pointer(nf_ct_nat_offset, NULL); synchronize_net(); } diff --git a/net/ipv4/netfilter/nf_nat_helper.c b/net/ipv4/netfilter/nf_nat_helper.c index 09172a65d9b6..f9520fa3aba9 100644 --- a/net/ipv4/netfilter/nf_nat_helper.c +++ b/net/ipv4/netfilter/nf_nat_helper.c @@ -73,6 +73,28 @@ adjust_tcp_sequence(u32 seq, DUMP_OFFSET(this_way); } +/* Get the offset value, for conntrack */ +s16 nf_nat_get_offset(const struct nf_conn *ct, + enum ip_conntrack_dir dir, + u32 seq) +{ + struct nf_conn_nat *nat = nfct_nat(ct); + struct nf_nat_seq *this_way; + s16 offset; + + if (!nat) + return 0; + + this_way = &nat->seq[dir]; + spin_lock_bh(&nf_nat_seqofs_lock); + offset = after(seq, this_way->correction_pos) + ? this_way->offset_after : this_way->offset_before; + spin_unlock_bh(&nf_nat_seqofs_lock); + + return offset; +} +EXPORT_SYMBOL_GPL(nf_nat_get_offset); + /* Frobs data inside this packet, which is linear. */ static void mangle_contents(struct sk_buff *skb, unsigned int dataoff, @@ -189,11 +211,6 @@ nf_nat_mangle_tcp_packet(struct sk_buff *skb, adjust_tcp_sequence(ntohl(tcph->seq), (int)rep_len - (int)match_len, ct, ctinfo); - /* Tell TCP window tracking about seq change */ - nf_conntrack_tcp_update(skb, ip_hdrlen(skb), - ct, CTINFO2DIR(ctinfo), - (int)rep_len - (int)match_len); - nf_conntrack_event_cache(IPCT_NATSEQADJ, ct); } return 1; @@ -415,12 +432,7 @@ nf_nat_seq_adjust(struct sk_buff *skb, tcph->seq = newseq; tcph->ack_seq = newack; - if (!nf_nat_sack_adjust(skb, tcph, ct, ctinfo)) - return 0; - - nf_conntrack_tcp_update(skb, ip_hdrlen(skb), ct, dir, seqoff); - - return 1; + return nf_nat_sack_adjust(skb, tcph, ct, ctinfo); } /* Setup NAT on this expected conntrack so it follows master. */ |