1/*
2 * ipv4 in net namespaces
3 */
4
5#ifndef __NETNS_IPV4_H__
6#define __NETNS_IPV4_H__
7
8#include <linux/uidgid.h>
9#include <net/inet_frag.h>
10#include <linux/rcupdate.h>
11
12struct tcpm_hash_bucket;
13struct ctl_table_header;
14struct ipv4_devconf;
15struct fib_rules_ops;
16struct hlist_head;
17struct fib_table;
18struct sock;
19struct local_ports {
20	seqlock_t	lock;
21	int		range[2];
22};
23
24struct ping_group_range {
25	seqlock_t	lock;
26	kgid_t		range[2];
27};
28
29struct netns_ipv4 {
30#ifdef CONFIG_SYSCTL
31	struct ctl_table_header	*forw_hdr;
32	struct ctl_table_header	*frags_hdr;
33	struct ctl_table_header	*ipv4_hdr;
34	struct ctl_table_header *route_hdr;
35	struct ctl_table_header *xfrm4_hdr;
36#endif
37	struct ipv4_devconf	*devconf_all;
38	struct ipv4_devconf	*devconf_dflt;
39#ifdef CONFIG_IP_MULTIPLE_TABLES
40	struct fib_rules_ops	*rules_ops;
41	bool			fib_has_custom_rules;
42	struct fib_table __rcu	*fib_local;
43	struct fib_table __rcu	*fib_main;
44	struct fib_table __rcu	*fib_default;
45#endif
46#ifdef CONFIG_IP_ROUTE_CLASSID
47	int			fib_num_tclassid_users;
48#endif
49	struct hlist_head	*fib_table_hash;
50	bool			fib_offload_disabled;
51	struct sock		*fibnl;
52
53	struct sock  * __percpu	*icmp_sk;
54	struct sock		*mc_autojoin_sk;
55
56	struct inet_peer_base	*peers;
57	struct sock  * __percpu	*tcp_sk;
58	struct netns_frags	frags;
59#ifdef CONFIG_NETFILTER
60	struct xt_table		*iptable_filter;
61	struct xt_table		*iptable_mangle;
62	struct xt_table		*iptable_raw;
63	struct xt_table		*arptable_filter;
64#ifdef CONFIG_SECURITY
65	struct xt_table		*iptable_security;
66#endif
67	struct xt_table		*nat_table;
68#endif
69
70	int sysctl_icmp_echo_ignore_all;
71	int sysctl_icmp_echo_ignore_broadcasts;
72	int sysctl_icmp_ignore_bogus_error_responses;
73	int sysctl_icmp_ratelimit;
74	int sysctl_icmp_ratemask;
75	int sysctl_icmp_errors_use_inbound_ifaddr;
76
77	struct local_ports ip_local_ports;
78
79	int sysctl_tcp_ecn;
80	int sysctl_ip_no_pmtu_disc;
81	int sysctl_ip_fwd_use_pmtu;
82	int sysctl_ip_nonlocal_bind;
83
84	int sysctl_fwmark_reflect;
85	int sysctl_tcp_fwmark_accept;
86	int sysctl_tcp_mtu_probing;
87	int sysctl_tcp_base_mss;
88	int sysctl_tcp_probe_threshold;
89	u32 sysctl_tcp_probe_interval;
90
91	struct ping_group_range ping_group_range;
92
93	atomic_t dev_addr_genid;
94
95#ifdef CONFIG_SYSCTL
96	unsigned long *sysctl_local_reserved_ports;
97#endif
98
99#ifdef CONFIG_IP_MROUTE
100#ifndef CONFIG_IP_MROUTE_MULTIPLE_TABLES
101	struct mr_table		*mrt;
102#else
103	struct list_head	mr_tables;
104	struct fib_rules_ops	*mr_rules_ops;
105#endif
106#endif
107	atomic_t	rt_genid;
108};
109#endif
110