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;
39 struct tcp_fastopen_context;
43 struct ctl_table_header *forw_hdr;
44 struct ctl_table_header *frags_hdr;
45 struct ctl_table_header *ipv4_hdr;
46 struct ctl_table_header *route_hdr;
47 struct ctl_table_header *xfrm4_hdr;
49 struct ipv4_devconf *devconf_all;
50 struct ipv4_devconf *devconf_dflt;
51 #ifdef CONFIG_IP_MULTIPLE_TABLES
52 struct fib_rules_ops *rules_ops;
53 bool fib_has_custom_rules;
54 struct fib_table __rcu *fib_main;
55 struct fib_table __rcu *fib_default;
57 bool fib_has_custom_local_routes;
58 #ifdef CONFIG_IP_ROUTE_CLASSID
59 int fib_num_tclassid_users;
61 struct hlist_head *fib_table_hash;
62 bool fib_offload_disabled;
65 struct sock * __percpu *icmp_sk;
66 struct sock *mc_autojoin_sk;
68 struct inet_peer_base *peers;
69 struct sock * __percpu *tcp_sk;
70 struct netns_frags frags;
71 #ifdef CONFIG_NETFILTER
72 struct xt_table *iptable_filter;
73 struct xt_table *iptable_mangle;
74 struct xt_table *iptable_raw;
75 struct xt_table *arptable_filter;
76 #ifdef CONFIG_SECURITY
77 struct xt_table *iptable_security;
79 struct xt_table *nat_table;
82 int sysctl_icmp_echo_ignore_all;
83 int sysctl_icmp_echo_ignore_broadcasts;
84 int sysctl_icmp_ignore_bogus_error_responses;
85 int sysctl_icmp_ratelimit;
86 int sysctl_icmp_ratemask;
87 int sysctl_icmp_errors_use_inbound_ifaddr;
89 struct local_ports ip_local_ports;
92 int sysctl_tcp_ecn_fallback;
94 int sysctl_ip_default_ttl;
95 int sysctl_ip_no_pmtu_disc;
96 int sysctl_ip_fwd_use_pmtu;
97 int sysctl_ip_nonlocal_bind;
98 /* Shall we try to damage output packets if routing dev changes? */
99 int sysctl_ip_dynaddr;
100 int sysctl_ip_early_demux;
101 int sysctl_tcp_early_demux;
102 int sysctl_udp_early_demux;
104 int sysctl_fwmark_reflect;
105 int sysctl_tcp_fwmark_accept;
106 #ifdef CONFIG_NET_L3_MASTER_DEV
107 int sysctl_tcp_l3mdev_accept;
109 int sysctl_tcp_mtu_probing;
110 int sysctl_tcp_base_mss;
111 int sysctl_tcp_probe_threshold;
112 u32 sysctl_tcp_probe_interval;
114 int sysctl_tcp_keepalive_time;
115 int sysctl_tcp_keepalive_probes;
116 int sysctl_tcp_keepalive_intvl;
118 int sysctl_tcp_syn_retries;
119 int sysctl_tcp_synack_retries;
120 int sysctl_tcp_syncookies;
121 int sysctl_tcp_reordering;
122 int sysctl_tcp_retries1;
123 int sysctl_tcp_retries2;
124 int sysctl_tcp_orphan_retries;
125 int sysctl_tcp_fin_timeout;
126 unsigned int sysctl_tcp_notsent_lowat;
127 int sysctl_tcp_tw_reuse;
129 int sysctl_tcp_window_scaling;
130 int sysctl_tcp_timestamps;
131 int sysctl_tcp_early_retrans;
132 int sysctl_tcp_recovery;
133 int sysctl_tcp_thin_linear_timeouts;
134 int sysctl_tcp_slow_start_after_idle;
135 int sysctl_tcp_retrans_collapse;
136 int sysctl_tcp_stdurg;
137 int sysctl_tcp_rfc1337;
138 int sysctl_tcp_abort_on_overflow;
140 int sysctl_tcp_max_reordering;
141 int sysctl_tcp_dsack;
142 int sysctl_tcp_app_win;
143 int sysctl_tcp_adv_win_scale;
145 int sysctl_tcp_nometrics_save;
146 int sysctl_tcp_moderate_rcvbuf;
147 int sysctl_tcp_tso_win_divisor;
148 int sysctl_tcp_workaround_signed_windows;
149 int sysctl_tcp_limit_output_bytes;
150 int sysctl_tcp_challenge_ack_limit;
151 int sysctl_tcp_min_tso_segs;
152 int sysctl_tcp_min_rtt_wlen;
153 int sysctl_tcp_autocorking;
154 int sysctl_tcp_invalid_ratelimit;
155 int sysctl_tcp_pacing_ss_ratio;
156 struct inet_timewait_death_row tcp_death_row;
157 int sysctl_max_syn_backlog;
158 int sysctl_tcp_fastopen;
159 struct tcp_fastopen_context __rcu *tcp_fastopen_ctx;
160 spinlock_t tcp_fastopen_ctx_lock;
161 unsigned int sysctl_tcp_fastopen_blackhole_timeout;
162 atomic_t tfo_active_disable_times;
163 unsigned long tfo_active_disable_stamp;
165 #ifdef CONFIG_NET_L3_MASTER_DEV
166 int sysctl_udp_l3mdev_accept;
169 int sysctl_igmp_max_memberships;
170 int sysctl_igmp_max_msf;
171 int sysctl_igmp_llm_reports;
174 struct ping_group_range ping_group_range;
176 atomic_t dev_addr_genid;
179 unsigned long *sysctl_local_reserved_ports;
180 int sysctl_ip_prot_sock;
183 #ifdef CONFIG_IP_MROUTE
184 #ifndef CONFIG_IP_MROUTE_MULTIPLE_TABLES
185 struct mr_table *mrt;
187 struct list_head mr_tables;
188 struct fib_rules_ops *mr_rules_ops;
191 #ifdef CONFIG_IP_ROUTE_MULTIPATH
192 int sysctl_fib_multipath_use_neigh;
193 int sysctl_fib_multipath_hash_policy;
196 struct fib_notifier_ops *notifier_ops;
197 unsigned int fib_seq; /* protected by rtnl_mutex */
199 struct fib_notifier_ops *ipmr_notifier_ops;
200 unsigned int ipmr_seq; /* protected by rtnl_mutex */