diff options
author | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 12:17:53 -0700 |
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committer | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 15:44:42 -0700 |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/include/net/netfilter/nf_conntrack_l3proto.h | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/include/net/netfilter/nf_conntrack_l3proto.h')
-rw-r--r-- | kernel/include/net/netfilter/nf_conntrack_l3proto.h | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/kernel/include/net/netfilter/nf_conntrack_l3proto.h b/kernel/include/net/netfilter/nf_conntrack_l3proto.h new file mode 100644 index 000000000..cdc920b4c --- /dev/null +++ b/kernel/include/net/netfilter/nf_conntrack_l3proto.h @@ -0,0 +1,102 @@ +/* + * 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; + + /* Protocol name */ + const char *name; + + /* + * Try to fill in the third arg: nhoff is offset of l3 proto + * hdr. Return true if possible. + */ + bool (*pkt_to_tuple)(const struct sk_buff *skb, unsigned int nhoff, + struct nf_conntrack_tuple *tuple); + + /* + * Invert the per-proto part of the tuple: ie. turn xmit into reply. + * Some packets can't be inverted: return 0 in that case. + */ + bool (*invert_tuple)(struct nf_conntrack_tuple *inverse, + const struct nf_conntrack_tuple *orig); + + /* Print out the per-protocol part of the tuple. */ + void (*print_tuple)(struct seq_file *s, + const struct nf_conntrack_tuple *); + + /* + * Called before tracking. + * *dataoff: offset of protocol header (TCP, UDP,...) in skb + * *protonum: protocol number + */ + int (*get_l4proto)(const struct sk_buff *skb, unsigned int nhoff, + unsigned int *dataoff, u_int8_t *protonum); + + int (*tuple_to_nlattr)(struct sk_buff *skb, + const struct nf_conntrack_tuple *t); + + /* + * Calculate size of tuple nlattr + */ + int (*nlattr_tuple_size)(void); + + int (*nlattr_to_tuple)(struct nlattr *tb[], + struct nf_conntrack_tuple *t); + const struct nla_policy *nla_policy; + + size_t nla_size; + +#ifdef CONFIG_SYSCTL + const char *ctl_table_path; +#endif /* CONFIG_SYSCTL */ + + /* Init l3proto pernet data */ + int (*init_net)(struct net *net); + + /* Module (if any) which this is connected to. */ + struct module *me; +}; + +extern struct nf_conntrack_l3proto __rcu *nf_ct_l3protos[AF_MAX]; + +/* Protocol pernet registration. */ +int nf_ct_l3proto_pernet_register(struct net *net, + struct nf_conntrack_l3proto *proto); +void nf_ct_l3proto_pernet_unregister(struct net *net, + struct nf_conntrack_l3proto *proto); + +/* Protocol global registration. */ +int nf_ct_l3proto_register(struct nf_conntrack_l3proto *proto); +void nf_ct_l3proto_unregister(struct nf_conntrack_l3proto *proto); + +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 >= AF_MAX)) + return &nf_conntrack_l3proto_generic; + return rcu_dereference(nf_ct_l3protos[l3proto]); +} + +#endif /*_NF_CONNTRACK_L3PROTO_H*/ |