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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#endif
19 unsigned int users;
20};
21
22struct nf_generic_net {
23 struct nf_proto_net pn;
24 unsigned int timeout;
25};
26
27struct nf_tcp_net {
28 struct nf_proto_net pn;
29 unsigned int timeouts[TCP_CONNTRACK_TIMEOUT_MAX];
30 unsigned int tcp_loose;
31 unsigned int tcp_be_liberal;
32 unsigned int tcp_max_retrans;
33};
34
35enum udp_conntrack {
36 UDP_CT_UNREPLIED,
37 UDP_CT_REPLIED,
38 UDP_CT_MAX
39};
40
41struct nf_udp_net {
42 struct nf_proto_net pn;
43 unsigned int timeouts[UDP_CT_MAX];
44};
45
46struct nf_icmp_net {
47 struct nf_proto_net pn;
48 unsigned int timeout;
49};
50
51struct nf_ip_net {
52 struct nf_generic_net generic;
53 struct nf_tcp_net tcp;
54 struct nf_udp_net udp;
55 struct nf_icmp_net icmp;
56 struct nf_icmp_net icmpv6;
57};
58
59struct ct_pcpu {
60 spinlock_t lock;
61 struct hlist_nulls_head unconfirmed;
62 struct hlist_nulls_head dying;
63};
64
65struct netns_ct {
66 atomic_t count;
67 unsigned int expect_count;
68#ifdef CONFIG_NF_CONNTRACK_EVENTS
69 struct delayed_work ecache_dwork;
70 bool ecache_dwork_pending;
71#endif
72#ifdef CONFIG_SYSCTL
73 struct ctl_table_header *sysctl_header;
74 struct ctl_table_header *acct_sysctl_header;
75 struct ctl_table_header *tstamp_sysctl_header;
76 struct ctl_table_header *event_sysctl_header;
77 struct ctl_table_header *helper_sysctl_header;
78#endif
79 unsigned int sysctl_log_invalid; /* Log invalid packets */
80 int sysctl_events;
81 int sysctl_acct;
82 int sysctl_auto_assign_helper;
83 bool auto_assign_helper_warned;
84 int sysctl_tstamp;
85 int sysctl_checksum;
86
87 struct ct_pcpu __percpu *pcpu_lists;
88 struct ip_conntrack_stat __percpu *stat;
89 struct nf_ct_event_notifier __rcu *nf_conntrack_event_cb;
90 struct nf_exp_event_notifier __rcu *nf_expect_event_cb;
91 struct nf_ip_net nf_ct_proto;
92#if defined(CONFIG_NF_CONNTRACK_LABELS)
93 unsigned int labels_used;
94 u8 label_words;
95#endif
96};
97#endif