diff options
author | Florian Westphal <fw@strlen.de> | 2018-06-29 08:46:51 +0300 |
---|---|---|
committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2018-07-17 16:27:49 +0300 |
commit | a0ae2562c6c4b2721d9fddba63b7286c13517d9f (patch) | |
tree | d57aa096dba122f1b4e6fd83625591c6a7f7f531 /include/net/netfilter/nf_conntrack_l3proto.h | |
parent | c779e849608a875448f6ffc2a5c2a15523bdcd00 (diff) | |
download | linux-a0ae2562c6c4b2721d9fddba63b7286c13517d9f.tar.xz |
netfilter: conntrack: remove l3proto abstraction
This unifies ipv4 and ipv6 protocol trackers and removes the l3proto
abstraction.
This gets rid of all l3proto indirect calls and the need to do
a lookup on the function to call for l3 demux.
It increases module size by only a small amount (12kbyte), so this reduces
size because nf_conntrack.ko is useless without either nf_conntrack_ipv4
or nf_conntrack_ipv6 module.
before:
text data bss dec hex filename
7357 1088 0 8445 20fd nf_conntrack_ipv4.ko
7405 1084 4 8493 212d nf_conntrack_ipv6.ko
72614 13689 236 86539 1520b nf_conntrack.ko
19K nf_conntrack_ipv4.ko
19K nf_conntrack_ipv6.ko
179K nf_conntrack.ko
after:
text data bss dec hex filename
79277 13937 236 93450 16d0a nf_conntrack.ko
191K nf_conntrack.ko
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'include/net/netfilter/nf_conntrack_l3proto.h')
-rw-r--r-- | include/net/netfilter/nf_conntrack_l3proto.h | 54 |
1 files changed, 0 insertions, 54 deletions
diff --git a/include/net/netfilter/nf_conntrack_l3proto.h b/include/net/netfilter/nf_conntrack_l3proto.h deleted file mode 100644 index 5f160375c93a..000000000000 --- a/include/net/netfilter/nf_conntrack_l3proto.h +++ /dev/null @@ -1,54 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * Copyright (C)2003,2004 USAGI/WIDE Project - * - * Header for use in defining a given L3 protocol for connection tracking. - * - * Author: - * Yasuyuki Kozakai @USAGI <yasuyuki.kozakai@toshiba.co.jp> - * - * Derived from include/netfilter_ipv4/ip_conntrack_protocol.h - */ - -#ifndef _NF_CONNTRACK_L3PROTO_H -#define _NF_CONNTRACK_L3PROTO_H -#include <linux/netlink.h> -#include <net/netlink.h> -#include <linux/seq_file.h> -#include <net/netfilter/nf_conntrack.h> - -struct nf_conntrack_l3proto { - /* L3 Protocol Family number. ex) PF_INET */ - u_int16_t l3proto; - - /* size of tuple nlattr, fills a hole */ - u16 nla_size; - - /* Called when netns wants to use connection tracking */ - int (*net_ns_get)(struct net *); - void (*net_ns_put)(struct net *); - - /* Module (if any) which this is connected to. */ - struct module *me; -}; - -extern struct nf_conntrack_l3proto __rcu *nf_ct_l3protos[NFPROTO_NUMPROTO]; - -/* Protocol global registration. */ -int nf_ct_l3proto_register(const struct nf_conntrack_l3proto *proto); -void nf_ct_l3proto_unregister(const struct nf_conntrack_l3proto *proto); - -const struct nf_conntrack_l3proto *nf_ct_l3proto_find_get(u_int16_t l3proto); - -/* Existing built-in protocols */ -extern struct nf_conntrack_l3proto nf_conntrack_l3proto_generic; - -static inline struct nf_conntrack_l3proto * -__nf_ct_l3proto_find(u_int16_t l3proto) -{ - if (unlikely(l3proto >= NFPROTO_NUMPROTO)) - return &nf_conntrack_l3proto_generic; - return rcu_dereference(nf_ct_l3protos[l3proto]); -} - -#endif /*_NF_CONNTRACK_L3PROTO_H*/ |