2 * ipv4 in net namespaces
5 #ifndef __NETNS_IPV4_H__
6 #define __NETNS_IPV4_H__
8 #include <linux/uidgid.h>
9 #include <net/inet_frag.h>
10 #include <linux/rcupdate.h>
12 struct tcpm_hash_bucket;
13 struct ctl_table_header;
25 struct ping_group_range {
32 struct inet_timewait_death_row {
35 struct inet_hashinfo *hashinfo ____cacheline_aligned_in_smp;
36 int sysctl_max_tw_buckets;
41 struct ctl_table_header *forw_hdr;
42 struct ctl_table_header *frags_hdr;
43 struct ctl_table_header *ipv4_hdr;
44 struct ctl_table_header *route_hdr;
45 struct ctl_table_header *xfrm4_hdr;
47 struct ipv4_devconf *devconf_all;
48 struct ipv4_devconf *devconf_dflt;
49 #ifdef CONFIG_IP_MULTIPLE_TABLES
50 struct fib_rules_ops *rules_ops;
51 bool fib_has_custom_rules;
52 bool fib_has_custom_local_routes;
53 struct fib_table __rcu *fib_main;
54 struct fib_table __rcu *fib_default;
56 #ifdef CONFIG_IP_ROUTE_CLASSID
57 int fib_num_tclassid_users;
59 struct hlist_head *fib_table_hash;
60 bool fib_offload_disabled;
63 struct sock * __percpu *icmp_sk;
64 struct sock *mc_autojoin_sk;
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;
77 struct xt_table *nat_table;
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;
87 struct local_ports ip_local_ports;
90 int sysctl_tcp_ecn_fallback;
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 int sysctl_tcp_early_demux;
100 int sysctl_udp_early_demux;
102 int sysctl_fwmark_reflect;
103 int sysctl_tcp_fwmark_accept;
104 #ifdef CONFIG_NET_L3_MASTER_DEV
105 int sysctl_tcp_l3mdev_accept;
107 int sysctl_tcp_mtu_probing;
108 int sysctl_tcp_base_mss;
109 int sysctl_tcp_probe_threshold;
110 u32 sysctl_tcp_probe_interval;
112 int sysctl_tcp_keepalive_time;
113 int sysctl_tcp_keepalive_probes;
114 int sysctl_tcp_keepalive_intvl;
116 int sysctl_tcp_syn_retries;
117 int sysctl_tcp_synack_retries;
118 int sysctl_tcp_syncookies;
119 int sysctl_tcp_reordering;
120 int sysctl_tcp_retries1;
121 int sysctl_tcp_retries2;
122 int sysctl_tcp_orphan_retries;
123 int sysctl_tcp_fin_timeout;
124 unsigned int sysctl_tcp_notsent_lowat;
125 int sysctl_tcp_tw_reuse;
127 int sysctl_tcp_window_scaling;
128 int sysctl_tcp_timestamps;
129 struct inet_timewait_death_row tcp_death_row;
130 int sysctl_max_syn_backlog;
132 #ifdef CONFIG_NET_L3_MASTER_DEV
133 int sysctl_udp_l3mdev_accept;
136 int sysctl_igmp_max_memberships;
137 int sysctl_igmp_max_msf;
138 int sysctl_igmp_llm_reports;
141 struct ping_group_range ping_group_range;
143 atomic_t dev_addr_genid;
146 unsigned long *sysctl_local_reserved_ports;
147 int sysctl_ip_prot_sock;
150 #ifdef CONFIG_IP_MROUTE
151 #ifndef CONFIG_IP_MROUTE_MULTIPLE_TABLES
152 struct mr_table *mrt;
154 struct list_head mr_tables;
155 struct fib_rules_ops *mr_rules_ops;
158 #ifdef CONFIG_IP_ROUTE_MULTIPATH
159 int sysctl_fib_multipath_use_neigh;
160 int sysctl_fib_multipath_hash_policy;
163 struct fib_notifier_ops *notifier_ops;
164 unsigned int fib_seq; /* protected by rtnl_mutex */