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[mirror_ubuntu-bionic-kernel.git] / include / net / netns / ipv4.h
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
12 struct tcpm_hash_bucket;
13 struct ctl_table_header;
14 struct ipv4_devconf;
15 struct fib_rules_ops;
16 struct hlist_head;
17 struct fib_table;
18 struct sock;
19 struct local_ports {
20 seqlock_t lock;
21 int range[2];
22 bool warned;
23 };
24
25 struct ping_group_range {
26 seqlock_t lock;
27 kgid_t range[2];
28 };
29
30 struct inet_hashinfo;
31
32 struct inet_timewait_death_row {
33 atomic_t tw_count;
34
35 struct inet_hashinfo *hashinfo ____cacheline_aligned_in_smp;
36 int sysctl_tw_recycle;
37 int sysctl_max_tw_buckets;
38 };
39
40 struct netns_ipv4 {
41 #ifdef CONFIG_SYSCTL
42 struct ctl_table_header *forw_hdr;
43 struct ctl_table_header *frags_hdr;
44 struct ctl_table_header *ipv4_hdr;
45 struct ctl_table_header *route_hdr;
46 struct ctl_table_header *xfrm4_hdr;
47 #endif
48 struct ipv4_devconf *devconf_all;
49 struct ipv4_devconf *devconf_dflt;
50 #ifdef CONFIG_IP_MULTIPLE_TABLES
51 struct fib_rules_ops *rules_ops;
52 bool fib_has_custom_rules;
53 struct fib_table __rcu *fib_main;
54 struct fib_table __rcu *fib_default;
55 #endif
56 #ifdef CONFIG_IP_ROUTE_CLASSID
57 int fib_num_tclassid_users;
58 #endif
59 struct hlist_head *fib_table_hash;
60 bool fib_offload_disabled;
61 struct sock *fibnl;
62
63 struct sock * __percpu *icmp_sk;
64 struct sock *mc_autojoin_sk;
65
66 struct inet_peer_base *peers;
67 struct sock * __percpu *tcp_sk;
68 struct netns_frags frags;
69 #ifdef CONFIG_NETFILTER
70 struct xt_table *iptable_filter;
71 struct xt_table *iptable_mangle;
72 struct xt_table *iptable_raw;
73 struct xt_table *arptable_filter;
74 #ifdef CONFIG_SECURITY
75 struct xt_table *iptable_security;
76 #endif
77 struct xt_table *nat_table;
78 #endif
79
80 int sysctl_icmp_echo_ignore_all;
81 int sysctl_icmp_echo_ignore_broadcasts;
82 int sysctl_icmp_ignore_bogus_error_responses;
83 int sysctl_icmp_ratelimit;
84 int sysctl_icmp_ratemask;
85 int sysctl_icmp_errors_use_inbound_ifaddr;
86
87 struct local_ports ip_local_ports;
88
89 int sysctl_tcp_ecn;
90 int sysctl_tcp_ecn_fallback;
91
92 int sysctl_ip_default_ttl;
93 int sysctl_ip_no_pmtu_disc;
94 int sysctl_ip_fwd_use_pmtu;
95 int sysctl_ip_nonlocal_bind;
96 /* Shall we try to damage output packets if routing dev changes? */
97 int sysctl_ip_dynaddr;
98 int sysctl_ip_early_demux;
99
100 int sysctl_fwmark_reflect;
101 int sysctl_tcp_fwmark_accept;
102 #ifdef CONFIG_NET_L3_MASTER_DEV
103 int sysctl_tcp_l3mdev_accept;
104 #endif
105 int sysctl_tcp_mtu_probing;
106 int sysctl_tcp_base_mss;
107 int sysctl_tcp_probe_threshold;
108 u32 sysctl_tcp_probe_interval;
109
110 int sysctl_tcp_keepalive_time;
111 int sysctl_tcp_keepalive_probes;
112 int sysctl_tcp_keepalive_intvl;
113
114 int sysctl_tcp_syn_retries;
115 int sysctl_tcp_synack_retries;
116 int sysctl_tcp_syncookies;
117 int sysctl_tcp_reordering;
118 int sysctl_tcp_retries1;
119 int sysctl_tcp_retries2;
120 int sysctl_tcp_orphan_retries;
121 int sysctl_tcp_fin_timeout;
122 unsigned int sysctl_tcp_notsent_lowat;
123 int sysctl_tcp_tw_reuse;
124 struct inet_timewait_death_row tcp_death_row;
125 int sysctl_max_syn_backlog;
126
127 #ifdef CONFIG_NET_L3_MASTER_DEV
128 int sysctl_udp_l3mdev_accept;
129 #endif
130
131 int sysctl_igmp_max_memberships;
132 int sysctl_igmp_max_msf;
133 int sysctl_igmp_llm_reports;
134 int sysctl_igmp_qrv;
135
136 struct ping_group_range ping_group_range;
137
138 atomic_t dev_addr_genid;
139
140 #ifdef CONFIG_SYSCTL
141 unsigned long *sysctl_local_reserved_ports;
142 int sysctl_ip_prot_sock;
143 #endif
144
145 #ifdef CONFIG_IP_MROUTE
146 #ifndef CONFIG_IP_MROUTE_MULTIPLE_TABLES
147 struct mr_table *mrt;
148 #else
149 struct list_head mr_tables;
150 struct fib_rules_ops *mr_rules_ops;
151 #endif
152 #endif
153 #ifdef CONFIG_IP_ROUTE_MULTIPATH
154 int sysctl_fib_multipath_use_neigh;
155 #endif
156
157 unsigned int fib_seq; /* protected by rtnl_mutex */
158
159 atomic_t rt_genid;
160 };
161 #endif