projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 8afd351c PE |
2 | /* |
| 3 | * ipv4 in net namespaces | |
| 4 | */ | |
| 5 | ||
| 6 | #ifndef __NETNS_IPV4_H__ | |
| 7 | #define __NETNS_IPV4_H__ | |
| e4e4971c | 8 | |
| 7064d16e | 9 | #include <linux/uidgid.h> |
| ac18e750 | 10 | #include <net/inet_frag.h> |
| a7e53531 | 11 | #include <linux/rcupdate.h> |
| 949d6b40 | 12 | #include <linux/seqlock.h> |
| df453700 | 13 | #include <linux/siphash.h> |
| ac18e750 | 14 | |
| 752d14dc PE |
15 | struct ctl_table_header; |
| 16 | struct ipv4_devconf; | |
| e4e4971c | 17 | struct fib_rules_ops; |
| e4aef8ae | 18 | struct hlist_head; |
| f4530fa5 | 19 | struct fib_table; |
| 6bd48fcf | 20 | struct sock; |
| 0bbf87d8 EB |
21 | struct local_ports { |
| 22 | seqlock_t lock; | |
| 23 | int range[2]; | |
| ed2dfd90 | 24 | bool warned; |
| 0bbf87d8 | 25 | }; |
| 752d14dc | 26 | |
| ba6b918a CW |
27 | struct ping_group_range { |
| 28 | seqlock_t lock; | |
| 29 | kgid_t range[2]; | |
| 30 | }; | |
| 31 | ||
| 1946e672 HY |
32 | struct inet_hashinfo; |
| 33 | ||
| 34 | struct inet_timewait_death_row { | |
| fbb82952 | 35 | refcount_t tw_refcount; |
| 1946e672 | 36 | |
| e9bd0cca | 37 | /* Padding to avoid false sharing, tw_refcount can be often written */ |
| fbb82952 | 38 | struct inet_hashinfo *hashinfo ____cacheline_aligned_in_smp; |
| 1946e672 HY |
39 | int sysctl_max_tw_buckets; |
| 40 | }; | |
| 41 | ||
| 43713848 HY |
42 | struct tcp_fastopen_context; |
| 43 | ||
| 8afd351c | 44 | struct netns_ipv4 { |
| e9bd0cca | 45 | struct inet_timewait_death_row tcp_death_row; |
| 67fb4330 | 46 | struct udp_table *udp_table; |
| 1caf8d39 | 47 | |
| 2a75de0c | 48 | #ifdef CONFIG_SYSCTL |
| 752d14dc | 49 | struct ctl_table_header *forw_hdr; |
| e4a2d5c2 | 50 | struct ctl_table_header *frags_hdr; |
| 68528f09 | 51 | struct ctl_table_header *ipv4_hdr; |
| 39a23e75 | 52 | struct ctl_table_header *route_hdr; |
| 8d068875 | 53 | struct ctl_table_header *xfrm4_hdr; |
| 2a75de0c | 54 | #endif |
| 752d14dc PE |
55 | struct ipv4_devconf *devconf_all; |
| 56 | struct ipv4_devconf *devconf_dflt; | |
| 5796ef75 | 57 | struct ip_ra_chain __rcu *ra_chain; |
| d9ff3049 | 58 | struct mutex ra_mutex; |
| e4e4971c DL |
59 | #ifdef CONFIG_IP_MULTIPLE_TABLES |
| 60 | struct fib_rules_ops *rules_ops; | |
| a7e53531 AD |
61 | struct fib_table __rcu *fib_main; |
| 62 | struct fib_table __rcu *fib_default; | |
| 490f33c4 ED |
63 | unsigned int fib_rules_require_fldissect; |
| 64 | bool fib_has_custom_rules; | |
| f4530fa5 | 65 | #endif |
| a1f3316d | 66 | bool fib_has_custom_local_routes; |
| 490f33c4 | 67 | bool fib_offload_disabled; |
| b650d953 | 68 | u8 sysctl_tcp_shrink_window; |
| f4530fa5 | 69 | #ifdef CONFIG_IP_ROUTE_CLASSID |
| 213f5f8f | 70 | atomic_t fib_num_tclassid_users; |
| e4e4971c | 71 | #endif |
| e4aef8ae | 72 | struct hlist_head *fib_table_hash; |
| 6bd48fcf | 73 | struct sock *fibnl; |
| ac18e750 | 74 | |
| 93a714d6 | 75 | struct sock *mc_autojoin_sk; |
| 349c9e3c | 76 | |
| c8a627ed | 77 | struct inet_peer_base *peers; |
| 4907abc6 | 78 | struct fqdir *fqdir; |
| a24022e1 | 79 | |
| 4b6bbf17 | 80 | u8 sysctl_icmp_echo_ignore_all; |
| f1b8fa9f | 81 | u8 sysctl_icmp_echo_enable_probe; |
| 4b6bbf17 ED |
82 | u8 sysctl_icmp_echo_ignore_broadcasts; |
| 83 | u8 sysctl_icmp_ignore_bogus_error_responses; | |
| 84 | u8 sysctl_icmp_errors_use_inbound_ifaddr; | |
| a24022e1 PE |
85 | int sysctl_icmp_ratelimit; |
| 86 | int sysctl_icmp_ratemask; | |
| 9f5e97e5 | 87 | |
| 1de6b15a | 88 | u32 ip_rt_min_pmtu; |
| 1135fad2 | 89 | int ip_rt_mtu_expires; |
| 2e9589ff | 90 | int ip_rt_min_advmss; |
| 1de6b15a | 91 | |
| c9d8f1a6 | 92 | struct local_ports ip_local_ports; |
| 0bbf87d8 | 93 | |
| 4b6bbf17 ED |
94 | u8 sysctl_tcp_ecn; |
| 95 | u8 sysctl_tcp_ecn_fallback; | |
| 49213555 | 96 | |
| 4b6bbf17 ED |
97 | u8 sysctl_ip_default_ttl; |
| 98 | u8 sysctl_ip_no_pmtu_disc; | |
| 99 | u8 sysctl_ip_fwd_use_pmtu; | |
| 1c69dedc | 100 | u8 sysctl_ip_fwd_update_priority; |
| 4b6bbf17 ED |
101 | u8 sysctl_ip_nonlocal_bind; |
| 102 | u8 sysctl_ip_autobind_reuse; | |
| 287b7f38 | 103 | /* Shall we try to damage output packets if routing dev changes? */ |
| 4b6bbf17 ED |
104 | u8 sysctl_ip_dynaddr; |
| 105 | u8 sysctl_ip_early_demux; | |
| 6897445f | 106 | #ifdef CONFIG_NET_L3_MASTER_DEV |
| 4b6bbf17 | 107 | u8 sysctl_raw_l3mdev_accept; |
| 6897445f | 108 | #endif |
| 2932bcda ED |
109 | u8 sysctl_tcp_early_demux; |
| 110 | u8 sysctl_udp_early_demux; | |
| 5d134f1c | 111 | |
| 4b6bbf17 | 112 | u8 sysctl_nexthop_compat_mode; |
| 4f80116d | 113 | |
| 4b6bbf17 | 114 | u8 sysctl_fwmark_reflect; |
| 4ecc1baf | 115 | u8 sysctl_tcp_fwmark_accept; |
| 6dd9a14e | 116 | #ifdef CONFIG_NET_L3_MASTER_DEV |
| 4ecc1baf | 117 | u8 sysctl_tcp_l3mdev_accept; |
| 6dd9a14e | 118 | #endif |
| 4ecc1baf | 119 | u8 sysctl_tcp_mtu_probing; |
| c04b79b6 | 120 | int sysctl_tcp_mtu_probe_floor; |
| b0f9ca53 | 121 | int sysctl_tcp_base_mss; |
| 5f3e2bf0 | 122 | int sysctl_tcp_min_snd_mss; |
| 6b58e0a5 | 123 | int sysctl_tcp_probe_threshold; |
| 05cbc0db | 124 | u32 sysctl_tcp_probe_interval; |
| e110861f | 125 | |
| 13b287e8 | 126 | int sysctl_tcp_keepalive_time; |
| b840d15d | 127 | int sysctl_tcp_keepalive_intvl; |
| 4ecc1baf | 128 | u8 sysctl_tcp_keepalive_probes; |
| 13b287e8 | 129 | |
| 4ecc1baf ED |
130 | u8 sysctl_tcp_syn_retries; |
| 131 | u8 sysctl_tcp_synack_retries; | |
| 132 | u8 sysctl_tcp_syncookies; | |
| f9ac779f | 133 | u8 sysctl_tcp_migrate_req; |
| 65466904 | 134 | u8 sysctl_tcp_comp_sack_nr; |
| 133c4c0d | 135 | u8 sysctl_tcp_backlog_ack_defer; |
| 1043e25f | 136 | int sysctl_tcp_reordering; |
| 4ecc1baf ED |
137 | u8 sysctl_tcp_retries1; |
| 138 | u8 sysctl_tcp_retries2; | |
| 139 | u8 sysctl_tcp_orphan_retries; | |
| 140 | u8 sysctl_tcp_tw_reuse; | |
| 1e579caa | 141 | int sysctl_tcp_fin_timeout; |
| 4979f2d9 | 142 | unsigned int sysctl_tcp_notsent_lowat; |
| 4ecc1baf ED |
143 | u8 sysctl_tcp_sack; |
| 144 | u8 sysctl_tcp_window_scaling; | |
| 145 | u8 sysctl_tcp_timestamps; | |
| 146 | u8 sysctl_tcp_early_retrans; | |
| 147 | u8 sysctl_tcp_recovery; | |
| 148 | u8 sysctl_tcp_thin_linear_timeouts; | |
| 149 | u8 sysctl_tcp_slow_start_after_idle; | |
| 150 | u8 sysctl_tcp_retrans_collapse; | |
| 151 | u8 sysctl_tcp_stdurg; | |
| 152 | u8 sysctl_tcp_rfc1337; | |
| 153 | u8 sysctl_tcp_abort_on_overflow; | |
| 154 | u8 sysctl_tcp_fack; /* obsolete */ | |
| c6e21803 | 155 | int sysctl_tcp_max_reordering; |
| dfa2f048 | 156 | int sysctl_tcp_adv_win_scale; /* obsolete */ |
| 4ecc1baf ED |
157 | u8 sysctl_tcp_dsack; |
| 158 | u8 sysctl_tcp_app_win; | |
| 159 | u8 sysctl_tcp_frto; | |
| 160 | u8 sysctl_tcp_nometrics_save; | |
| 161 | u8 sysctl_tcp_no_ssthresh_metrics_save; | |
| 162 | u8 sysctl_tcp_moderate_rcvbuf; | |
| 163 | u8 sysctl_tcp_tso_win_divisor; | |
| 164 | u8 sysctl_tcp_workaround_signed_windows; | |
| 9184d8bb | 165 | int sysctl_tcp_limit_output_bytes; |
| b530b681 | 166 | int sysctl_tcp_challenge_ack_limit; |
| bd239704 | 167 | int sysctl_tcp_min_rtt_wlen; |
| 4ecc1baf | 168 | u8 sysctl_tcp_min_tso_segs; |
| 65466904 | 169 | u8 sysctl_tcp_tso_rtt_log; |
| 4ecc1baf ED |
170 | u8 sysctl_tcp_autocorking; |
| 171 | u8 sysctl_tcp_reflect_tos; | |
| 4170ba6b | 172 | int sysctl_tcp_invalid_ratelimit; |
| 23a7102a | 173 | int sysctl_tcp_pacing_ss_ratio; |
| c26e91f8 | 174 | int sysctl_tcp_pacing_ca_ratio; |
| 356d1833 ED |
175 | int sysctl_tcp_wmem[3]; |
| 176 | int sysctl_tcp_rmem[3]; | |
| d1e5e640 | 177 | unsigned int sysctl_tcp_child_ehash_entries; |
| 6d82aa24 | 178 | unsigned long sysctl_tcp_comp_sack_delay_ns; |
| a70437cc | 179 | unsigned long sysctl_tcp_comp_sack_slack_ns; |
| fee83d09 | 180 | int sysctl_max_syn_backlog; |
| e1cfcbe8 | 181 | int sysctl_tcp_fastopen; |
| 6670e152 | 182 | const struct tcp_congestion_ops __rcu *tcp_congestion_control; |
| 43713848 | 183 | struct tcp_fastopen_context __rcu *tcp_fastopen_ctx; |
| 3733be14 HY |
184 | unsigned int sysctl_tcp_fastopen_blackhole_timeout; |
| 185 | atomic_t tfo_active_disable_times; | |
| 186 | unsigned long tfo_active_disable_stamp; | |
| 79e3602c ED |
187 | u32 tcp_challenge_timestamp; |
| 188 | u32 tcp_challenge_count; | |
| bd456f28 MAQ |
189 | u8 sysctl_tcp_plb_enabled; |
| 190 | u8 sysctl_tcp_plb_idle_rehash_rounds; | |
| 191 | u8 sysctl_tcp_plb_rehash_rounds; | |
| 192 | u8 sysctl_tcp_plb_suspend_rto_sec; | |
| 193 | int sysctl_tcp_plb_cong_thresh; | |
| 12ed8244 | 194 | |
| 1e802951 TZ |
195 | int sysctl_udp_wmem_min; |
| 196 | int sysctl_udp_rmem_min; | |
| 197 | ||
| b2908fac | 198 | u8 sysctl_fib_notify_on_flag_change; |
| ccce324d | 199 | u8 sysctl_tcp_syn_linear_timeouts; |
| 680aea08 | 200 | |
| 63a6fff3 | 201 | #ifdef CONFIG_NET_L3_MASTER_DEV |
| cd04bd02 | 202 | u8 sysctl_udp_l3mdev_accept; |
| 63a6fff3 RS |
203 | #endif |
| 204 | ||
| 7d4b37eb | 205 | u8 sysctl_igmp_llm_reports; |
| 815c5270 | 206 | int sysctl_igmp_max_memberships; |
| 166b6b2d | 207 | int sysctl_igmp_max_msf; |
| 165094af | 208 | int sysctl_igmp_qrv; |
| 815c5270 | 209 | |
| ba6b918a | 210 | struct ping_group_range ping_group_range; |
| c319b4d7 | 211 | |
| 436c3b66 | 212 | atomic_t dev_addr_genid; |
| 70a269e6 | 213 | |
| 9804985b KI |
214 | unsigned int sysctl_udp_child_hash_entries; |
| 215 | ||
| 122ff243 WC |
216 | #ifdef CONFIG_SYSCTL |
| 217 | unsigned long *sysctl_local_reserved_ports; | |
| 4548b683 | 218 | int sysctl_ip_prot_sock; |
| 122ff243 WC |
219 | #endif |
| 220 | ||
| 70a269e6 | 221 | #ifdef CONFIG_IP_MROUTE |
| f0ad0860 | 222 | #ifndef CONFIG_IP_MROUTE_MULTIPLE_TABLES |
| 0c12295a | 223 | struct mr_table *mrt; |
| f0ad0860 PM |
224 | #else |
| 225 | struct list_head mr_tables; | |
| 226 | struct fib_rules_ops *mr_rules_ops; | |
| 227 | #endif | |
| a6db4494 DA |
228 | #endif |
| 229 | #ifdef CONFIG_IP_ROUTE_MULTIPATH | |
| ce5c9c20 | 230 | u32 sysctl_fib_multipath_hash_fields; |
| be205fe6 ED |
231 | u8 sysctl_fib_multipath_use_neigh; |
| 232 | u8 sysctl_fib_multipath_hash_policy; | |
| 70a269e6 | 233 | #endif |
| cacaad11 | 234 | |
| 04b1d4e5 | 235 | struct fib_notifier_ops *notifier_ops; |
| cacaad11 IS |
236 | unsigned int fib_seq; /* protected by rtnl_mutex */ |
| 237 | ||
| 4d65b948 YG |
238 | struct fib_notifier_ops *ipmr_notifier_ops; |
| 239 | unsigned int ipmr_seq; /* protected by rtnl_mutex */ | |
| 240 | ||
| ca4c3fc2 | 241 | atomic_t rt_genid; |
| df453700 | 242 | siphash_key_t ip_id_key; |
| 8afd351c PE |
243 | }; |
| 244 | #endif |