ipv4: introduce ip_dst_mtu_maybe_forward and protect forwarding path against pmtu...
[deliverable/linux.git] / include / net / netns / ipv4.h
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1/*
2 * ipv4 in net namespaces
3 */
4
5#ifndef __NETNS_IPV4_H__
6#define __NETNS_IPV4_H__
e4e4971c 7
7064d16e 8#include <linux/uidgid.h>
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9#include <net/inet_frag.h>
10
51c5d0c4 11struct tcpm_hash_bucket;
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12struct ctl_table_header;
13struct ipv4_devconf;
e4e4971c 14struct fib_rules_ops;
e4aef8ae 15struct hlist_head;
f4530fa5 16struct fib_table;
6bd48fcf 17struct sock;
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18struct local_ports {
19 seqlock_t lock;
20 int range[2];
21};
752d14dc 22
8afd351c 23struct netns_ipv4 {
2a75de0c 24#ifdef CONFIG_SYSCTL
752d14dc 25 struct ctl_table_header *forw_hdr;
e4a2d5c2 26 struct ctl_table_header *frags_hdr;
68528f09 27 struct ctl_table_header *ipv4_hdr;
39a23e75 28 struct ctl_table_header *route_hdr;
8d068875 29 struct ctl_table_header *xfrm4_hdr;
2a75de0c 30#endif
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31 struct ipv4_devconf *devconf_all;
32 struct ipv4_devconf *devconf_dflt;
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33#ifdef CONFIG_IP_MULTIPLE_TABLES
34 struct fib_rules_ops *rules_ops;
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35 bool fib_has_custom_rules;
36 struct fib_table *fib_local;
37 struct fib_table *fib_main;
38 struct fib_table *fib_default;
39#endif
40#ifdef CONFIG_IP_ROUTE_CLASSID
41 int fib_num_tclassid_users;
e4e4971c 42#endif
e4aef8ae 43 struct hlist_head *fib_table_hash;
6bd48fcf 44 struct sock *fibnl;
ac18e750 45
4a6ad7a1 46 struct sock **icmp_sk;
c8a627ed 47 struct inet_peer_base *peers;
51c5d0c4 48 struct tcpm_hash_bucket *tcp_metrics_hash;
5815d5e7 49 unsigned int tcp_metrics_hash_log;
ac18e750 50 struct netns_frags frags;
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51#ifdef CONFIG_NETFILTER
52 struct xt_table *iptable_filter;
53 struct xt_table *iptable_mangle;
54 struct xt_table *iptable_raw;
9ea0cb26 55 struct xt_table *arptable_filter;
e9d3897c 56#ifdef CONFIG_SECURITY
560ee653 57 struct xt_table *iptable_security;
e9d3897c 58#endif
e099a173 59 struct xt_table *nat_table;
9335f047 60#endif
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61
62 int sysctl_icmp_echo_ignore_all;
63 int sysctl_icmp_echo_ignore_broadcasts;
64 int sysctl_icmp_ignore_bogus_error_responses;
65 int sysctl_icmp_ratelimit;
66 int sysctl_icmp_ratemask;
67 int sysctl_icmp_errors_use_inbound_ifaddr;
9f5e97e5 68
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69 struct local_ports sysctl_local_ports;
70
5d134f1c 71 int sysctl_tcp_ecn;
974eda11 72 int sysctl_ip_no_pmtu_disc;
f87c10a8 73 int sysctl_ip_fwd_use_pmtu;
5d134f1c 74
7064d16e 75 kgid_t sysctl_ping_group_range[2];
c319b4d7 76
436c3b66 77 atomic_t dev_addr_genid;
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78
79#ifdef CONFIG_IP_MROUTE
f0ad0860 80#ifndef CONFIG_IP_MROUTE_MULTIPLE_TABLES
0c12295a 81 struct mr_table *mrt;
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82#else
83 struct list_head mr_tables;
84 struct fib_rules_ops *mr_rules_ops;
85#endif
70a269e6 86#endif
ca4c3fc2 87 atomic_t rt_genid;
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88};
89#endif
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