1#ifndef __NETNS_CONNTRACK_H
2#define __NETNS_CONNTRACK_H
3
4#include <linux/list.h>
5#include <linux/list_nulls.h>
6#include <linux/atomic.h>
7#include <linux/workqueue.h>
8#include <linux/netfilter/nf_conntrack_tcp.h>
9#include <linux/seqlock.h>
10
11struct ctl_table_header;
12struct nf_conntrack_ecache;
13
14struct nf_proto_net {
15#ifdef CONFIG_SYSCTL
16	struct ctl_table_header *ctl_table_header;
17	struct ctl_table        *ctl_table;
18#ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT
19	struct ctl_table_header *ctl_compat_header;
20	struct ctl_table        *ctl_compat_table;
21#endif
22#endif
23	unsigned int		users;
24};
25
26struct nf_generic_net {
27	struct nf_proto_net pn;
28	unsigned int timeout;
29};
30
31struct nf_tcp_net {
32	struct nf_proto_net pn;
33	unsigned int timeouts[TCP_CONNTRACK_TIMEOUT_MAX];
34	unsigned int tcp_loose;
35	unsigned int tcp_be_liberal;
36	unsigned int tcp_max_retrans;
37};
38
39enum udp_conntrack {
40	UDP_CT_UNREPLIED,
41	UDP_CT_REPLIED,
42	UDP_CT_MAX
43};
44
45struct nf_udp_net {
46	struct nf_proto_net pn;
47	unsigned int timeouts[UDP_CT_MAX];
48};
49
50struct nf_icmp_net {
51	struct nf_proto_net pn;
52	unsigned int timeout;
53};
54
55struct nf_ip_net {
56	struct nf_generic_net   generic;
57	struct nf_tcp_net	tcp;
58	struct nf_udp_net	udp;
59	struct nf_icmp_net	icmp;
60	struct nf_icmp_net	icmpv6;
61#if defined(CONFIG_SYSCTL) && defined(CONFIG_NF_CONNTRACK_PROC_COMPAT)
62	struct ctl_table_header *ctl_table_header;
63	struct ctl_table	*ctl_table;
64#endif
65};
66
67struct ct_pcpu {
68	spinlock_t		lock;
69	struct hlist_nulls_head unconfirmed;
70	struct hlist_nulls_head dying;
71	struct hlist_nulls_head tmpl;
72};
73
74struct netns_ct {
75	atomic_t		count;
76	unsigned int		expect_count;
77#ifdef CONFIG_NF_CONNTRACK_EVENTS
78	struct delayed_work ecache_dwork;
79	bool ecache_dwork_pending;
80#endif
81#ifdef CONFIG_SYSCTL
82	struct ctl_table_header	*sysctl_header;
83	struct ctl_table_header	*acct_sysctl_header;
84	struct ctl_table_header	*tstamp_sysctl_header;
85	struct ctl_table_header	*event_sysctl_header;
86	struct ctl_table_header	*helper_sysctl_header;
87#endif
88	char			*slabname;
89	unsigned int		sysctl_log_invalid; /* Log invalid packets */
90	int			sysctl_events;
91	int			sysctl_acct;
92	int			sysctl_auto_assign_helper;
93	bool			auto_assign_helper_warned;
94	int			sysctl_tstamp;
95	int			sysctl_checksum;
96
97	unsigned int		htable_size;
98	seqcount_t		generation;
99	struct kmem_cache	*nf_conntrack_cachep;
100	struct hlist_nulls_head	*hash;
101	struct hlist_head	*expect_hash;
102	struct ct_pcpu __percpu *pcpu_lists;
103	struct ip_conntrack_stat __percpu *stat;
104	struct nf_ct_event_notifier __rcu *nf_conntrack_event_cb;
105	struct nf_exp_event_notifier __rcu *nf_expect_event_cb;
106	struct nf_ip_net	nf_ct_proto;
107#if defined(CONFIG_NF_CONNTRACK_LABELS)
108	unsigned int		labels_used;
109	u8			label_words;
110#endif
111#ifdef CONFIG_NF_NAT_NEEDED
112	struct hlist_head	*nat_bysource;
113	unsigned int		nat_htable_size;
114#endif
115};
116#endif
117