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1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef __NETNS_CONNTRACK_H
3#define __NETNS_CONNTRACK_H
4
5#include <linux/list.h>
6#include <linux/list_nulls.h>
7#include <linux/atomic.h>
8#include <linux/workqueue.h>
9#include <linux/netfilter/nf_conntrack_tcp.h>
10#ifdef CONFIG_NF_CT_PROTO_DCCP
11#include <linux/netfilter/nf_conntrack_dccp.h>
12#endif
13#ifdef CONFIG_NF_CT_PROTO_SCTP
14#include <linux/netfilter/nf_conntrack_sctp.h>
15#endif
16#include <linux/seqlock.h>
17
18struct ctl_table_header;
19struct nf_conntrack_ecache;
20
21struct nf_generic_net {
22 unsigned int timeout;
23};
24
25struct nf_tcp_net {
26 unsigned int timeouts[TCP_CONNTRACK_TIMEOUT_MAX];
27 u8 tcp_loose;
28 u8 tcp_be_liberal;
29 u8 tcp_max_retrans;
30 u8 tcp_ignore_invalid_rst;
31#if IS_ENABLED(CONFIG_NF_FLOW_TABLE)
32 unsigned int offload_timeout;
33#endif
34};
35
36enum udp_conntrack {
37 UDP_CT_UNREPLIED,
38 UDP_CT_REPLIED,
39 UDP_CT_MAX
40};
41
42struct nf_udp_net {
43 unsigned int timeouts[UDP_CT_MAX];
44#if IS_ENABLED(CONFIG_NF_FLOW_TABLE)
45 unsigned int offload_timeout;
46#endif
47};
48
49struct nf_icmp_net {
50 unsigned int timeout;
51};
52
53#ifdef CONFIG_NF_CT_PROTO_DCCP
54struct nf_dccp_net {
55 u8 dccp_loose;
56 unsigned int dccp_timeout[CT_DCCP_MAX + 1];
57};
58#endif
59
60#ifdef CONFIG_NF_CT_PROTO_SCTP
61struct nf_sctp_net {
62 unsigned int timeouts[SCTP_CONNTRACK_MAX];
63};
64#endif
65
66#ifdef CONFIG_NF_CT_PROTO_GRE
67enum gre_conntrack {
68 GRE_CT_UNREPLIED,
69 GRE_CT_REPLIED,
70 GRE_CT_MAX
71};
72
73struct nf_gre_net {
74 struct list_head keymap_list;
75 unsigned int timeouts[GRE_CT_MAX];
76};
77#endif
78
79struct nf_ip_net {
80 struct nf_generic_net generic;
81 struct nf_tcp_net tcp;
82 struct nf_udp_net udp;
83 struct nf_icmp_net icmp;
84 struct nf_icmp_net icmpv6;
85#ifdef CONFIG_NF_CT_PROTO_DCCP
86 struct nf_dccp_net dccp;
87#endif
88#ifdef CONFIG_NF_CT_PROTO_SCTP
89 struct nf_sctp_net sctp;
90#endif
91#ifdef CONFIG_NF_CT_PROTO_GRE
92 struct nf_gre_net gre;
93#endif
94};
95
96struct netns_ct {
97#ifdef CONFIG_NF_CONNTRACK_EVENTS
98 bool ecache_dwork_pending;
99#endif
100 u8 sysctl_log_invalid; /* Log invalid packets */
101 u8 sysctl_events;
102 u8 sysctl_acct;
103 u8 sysctl_tstamp;
104 u8 sysctl_checksum;
105
106 struct ip_conntrack_stat __percpu *stat;
107 struct nf_ct_event_notifier __rcu *nf_conntrack_event_cb;
108 struct nf_ip_net nf_ct_proto;
109#if defined(CONFIG_NF_CONNTRACK_LABELS)
110 atomic_t labels_used;
111#endif
112};
113#endif
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};
72
73struct netns_ct {
74 atomic_t count;
75 unsigned int expect_count;
76#ifdef CONFIG_NF_CONNTRACK_EVENTS
77 struct delayed_work ecache_dwork;
78 bool ecache_dwork_pending;
79#endif
80#ifdef CONFIG_SYSCTL
81 struct ctl_table_header *sysctl_header;
82 struct ctl_table_header *acct_sysctl_header;
83 struct ctl_table_header *tstamp_sysctl_header;
84 struct ctl_table_header *event_sysctl_header;
85 struct ctl_table_header *helper_sysctl_header;
86#endif
87 char *slabname;
88 unsigned int sysctl_log_invalid; /* Log invalid packets */
89 int sysctl_events;
90 int sysctl_acct;
91 int sysctl_auto_assign_helper;
92 bool auto_assign_helper_warned;
93 int sysctl_tstamp;
94 int sysctl_checksum;
95
96 unsigned int htable_size;
97 seqcount_t generation;
98 struct kmem_cache *nf_conntrack_cachep;
99 struct hlist_nulls_head *hash;
100 struct hlist_head *expect_hash;
101 struct ct_pcpu __percpu *pcpu_lists;
102 struct ip_conntrack_stat __percpu *stat;
103 struct nf_ct_event_notifier __rcu *nf_conntrack_event_cb;
104 struct nf_exp_event_notifier __rcu *nf_expect_event_cb;
105 struct nf_ip_net nf_ct_proto;
106#if defined(CONFIG_NF_CONNTRACK_LABELS)
107 unsigned int labels_used;
108 u8 label_words;
109#endif
110#ifdef CONFIG_NF_NAT_NEEDED
111 struct hlist_head *nat_bysource;
112 unsigned int nat_htable_size;
113#endif
114};
115#endif