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| author | Yasuyuki Kozakai | 2007-07-08 07:23:21 +0200 |
|---|---|---|
| committer | David S. Miller | 2007-07-11 07:17:17 +0200 |
| commit | ecfab2c9fe5597221c2b30dec48634a2361a0d08 (patch) | |
| tree | 5640796c698074105430c1c1bc24df87f4d0a6b4 /include/net/netfilter/nf_conntrack.h | |
| parent | [NETFILTER]: nf_nat: move NAT declarations from nf_conntrack_ipv4.h to nf_nat.h (diff) | |
| download | kernel-qcow2-linux-ecfab2c9fe5597221c2b30dec48634a2361a0d08.tar.gz kernel-qcow2-linux-ecfab2c9fe5597221c2b30dec48634a2361a0d08.tar.xz kernel-qcow2-linux-ecfab2c9fe5597221c2b30dec48634a2361a0d08.zip | |
[NETFILTER]: nf_conntrack: introduce extension infrastructure
Old space allocator of conntrack had problems about extensibility.
- It required slab cache per combination of extensions.
- It expected what extensions would be assigned, but it was impossible
to expect that completely, then we allocated bigger memory object than
really required.
- It needed to search helper twice due to lock issue.
Now basic informations of a connection are stored in 'struct nf_conn'.
And a storage for extension (helper, NAT) is allocated by kmalloc.
Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/netfilter/nf_conntrack.h')
| -rw-r--r-- | include/net/netfilter/nf_conntrack.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/net/netfilter/nf_conntrack.h b/include/net/netfilter/nf_conntrack.h index 12a0e793cc0b..c31382d3ef11 100644 --- a/include/net/netfilter/nf_conntrack.h +++ b/include/net/netfilter/nf_conntrack.h @@ -131,6 +131,9 @@ struct nf_conn /* Storage reserved for other modules: */ union nf_conntrack_proto proto; + /* Extensions */ + struct nf_ct_ext *ext; + /* features dynamically at the end: helper, nat (both optional) */ char data[0]; }; |