projects / mirror_ubuntu-jammy-kernel.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> |
| df453700 | 12 | #include <linux/siphash.h> |
| ac18e750 | 13 | |
| 752d14dc PE |
14 | struct ctl_table_header; |
| 15 | struct ipv4_devconf; | |
| e4e4971c | 16 | struct fib_rules_ops; |
| e4aef8ae | 17 | struct hlist_head; |
| f4530fa5 | 18 | struct fib_table; |
| 6bd48fcf | 19 | struct sock; |
| 0bbf87d8 EB |
20 | struct local_ports { |
| 21 | seqlock_t lock; | |
| 22 | int range[2]; | |
| ed2dfd90 | 23 | bool warned; |
| 0bbf87d8 | 24 | }; |
| 752d14dc | 25 | |
| ba6b918a CW |
26 | struct ping_group_range { |
| 27 | seqlock_t lock; | |
| 28 | kgid_t range[2]; | |
| 29 | }; | |
| 30 | ||
| 1946e672 HY |
31 | struct inet_hashinfo; |
| 32 | ||
| 33 | struct inet_timewait_death_row { | |
| 34 | atomic_t tw_count; | |
| 1caf8d39 | 35 | char tw_pad[L1_CACHE_BYTES - sizeof(atomic_t)]; |
| 1946e672 | 36 | |
| 1caf8d39 | 37 | struct inet_hashinfo *hashinfo; |
| 1946e672 HY |
38 | int sysctl_max_tw_buckets; |
| 39 | }; | |
| 40 | ||
| 43713848 HY |
41 | struct tcp_fastopen_context; |
| 42 | ||
| 8afd351c | 43 | struct netns_ipv4 { |
| 1caf8d39 ED |
44 | /* Please keep tcp_death_row at first field in netns_ipv4 */ |
| 45 | struct inet_timewait_death_row tcp_death_row ____cacheline_aligned_in_smp; | |
| 46 | ||
| 2a75de0c | 47 | #ifdef CONFIG_SYSCTL |
| 752d14dc | 48 | struct ctl_table_header *forw_hdr; |
| e4a2d5c2 | 49 | struct ctl_table_header *frags_hdr; |
| 68528f09 | 50 | struct ctl_table_header *ipv4_hdr; |
| 39a23e75 | 51 | struct ctl_table_header *route_hdr; |
| 8d068875 | 52 | struct ctl_table_header *xfrm4_hdr; |
| 2a75de0c | 53 | #endif |
| 752d14dc PE |
54 | struct ipv4_devconf *devconf_all; |
| 55 | struct ipv4_devconf *devconf_dflt; | |
| 5796ef75 | 56 | struct ip_ra_chain __rcu *ra_chain; |
| d9ff3049 | 57 | struct mutex ra_mutex; |
| e4e4971c DL |
58 | #ifdef CONFIG_IP_MULTIPLE_TABLES |
| 59 | struct fib_rules_ops *rules_ops; | |
| a7e53531 AD |
60 | struct fib_table __rcu *fib_main; |
| 61 | struct fib_table __rcu *fib_default; | |
| 490f33c4 ED |
62 | unsigned int fib_rules_require_fldissect; |
| 63 | bool fib_has_custom_rules; | |
| f4530fa5 | 64 | #endif |
| a1f3316d | 65 | bool fib_has_custom_local_routes; |
| 490f33c4 | 66 | bool fib_offload_disabled; |
| f4530fa5 | 67 | #ifdef CONFIG_IP_ROUTE_CLASSID |
| 97ca3f1a | 68 | atomic_t fib_num_tclassid_users; |
| e4e4971c | 69 | #endif |
| e4aef8ae | 70 | struct hlist_head *fib_table_hash; |
| 6bd48fcf | 71 | struct sock *fibnl; |
| ac18e750 | 72 | |
| 349c9e3c | 73 | struct sock * __percpu *icmp_sk; |
| 93a714d6 | 74 | struct sock *mc_autojoin_sk; |
| 349c9e3c | 75 | |
| c8a627ed | 76 | struct inet_peer_base *peers; |
| bdbbb852 | 77 | struct sock * __percpu *tcp_sk; |
| 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 | |
| c9d8f1a6 | 88 | struct local_ports ip_local_ports; |
| 0bbf87d8 | 89 | |
| 4b6bbf17 ED |
90 | u8 sysctl_tcp_ecn; |
| 91 | u8 sysctl_tcp_ecn_fallback; | |
| 49213555 | 92 | |
| 4b6bbf17 ED |
93 | u8 sysctl_ip_default_ttl; |
| 94 | u8 sysctl_ip_no_pmtu_disc; | |
| 95 | u8 sysctl_ip_fwd_use_pmtu; | |
| 1c69dedc | 96 | u8 sysctl_ip_fwd_update_priority; |
| 4b6bbf17 ED |
97 | u8 sysctl_ip_nonlocal_bind; |
| 98 | u8 sysctl_ip_autobind_reuse; | |
| 287b7f38 | 99 | /* Shall we try to damage output packets if routing dev changes? */ |
| 4b6bbf17 ED |
100 | u8 sysctl_ip_dynaddr; |
| 101 | u8 sysctl_ip_early_demux; | |
| 6897445f | 102 | #ifdef CONFIG_NET_L3_MASTER_DEV |
| 4b6bbf17 | 103 | u8 sysctl_raw_l3mdev_accept; |
| 6897445f | 104 | #endif |
| 2932bcda ED |
105 | u8 sysctl_tcp_early_demux; |
| 106 | u8 sysctl_udp_early_demux; | |
| 5d134f1c | 107 | |
| 4b6bbf17 | 108 | u8 sysctl_nexthop_compat_mode; |
| 4f80116d | 109 | |
| 4b6bbf17 | 110 | u8 sysctl_fwmark_reflect; |
| 4ecc1baf | 111 | u8 sysctl_tcp_fwmark_accept; |
| 6dd9a14e | 112 | #ifdef CONFIG_NET_L3_MASTER_DEV |
| 4ecc1baf | 113 | u8 sysctl_tcp_l3mdev_accept; |
| 6dd9a14e | 114 | #endif |
| 4ecc1baf | 115 | u8 sysctl_tcp_mtu_probing; |
| c04b79b6 | 116 | int sysctl_tcp_mtu_probe_floor; |
| b0f9ca53 | 117 | int sysctl_tcp_base_mss; |
| 5f3e2bf0 | 118 | int sysctl_tcp_min_snd_mss; |
| 6b58e0a5 | 119 | int sysctl_tcp_probe_threshold; |
| 05cbc0db | 120 | u32 sysctl_tcp_probe_interval; |
| e110861f | 121 | |
| 13b287e8 | 122 | int sysctl_tcp_keepalive_time; |
| b840d15d | 123 | int sysctl_tcp_keepalive_intvl; |
| 4ecc1baf | 124 | u8 sysctl_tcp_keepalive_probes; |
| 13b287e8 | 125 | |
| 4ecc1baf ED |
126 | u8 sysctl_tcp_syn_retries; |
| 127 | u8 sysctl_tcp_synack_retries; | |
| 128 | u8 sysctl_tcp_syncookies; | |
| f9ac779f | 129 | u8 sysctl_tcp_migrate_req; |
| 1043e25f | 130 | int sysctl_tcp_reordering; |
| 4ecc1baf ED |
131 | u8 sysctl_tcp_retries1; |
| 132 | u8 sysctl_tcp_retries2; | |
| 133 | u8 sysctl_tcp_orphan_retries; | |
| 134 | u8 sysctl_tcp_tw_reuse; | |
| 1e579caa | 135 | int sysctl_tcp_fin_timeout; |
| 4979f2d9 | 136 | unsigned int sysctl_tcp_notsent_lowat; |
| 4ecc1baf ED |
137 | u8 sysctl_tcp_sack; |
| 138 | u8 sysctl_tcp_window_scaling; | |
| 139 | u8 sysctl_tcp_timestamps; | |
| 140 | u8 sysctl_tcp_early_retrans; | |
| 141 | u8 sysctl_tcp_recovery; | |
| 142 | u8 sysctl_tcp_thin_linear_timeouts; | |
| 143 | u8 sysctl_tcp_slow_start_after_idle; | |
| 144 | u8 sysctl_tcp_retrans_collapse; | |
| 145 | u8 sysctl_tcp_stdurg; | |
| 146 | u8 sysctl_tcp_rfc1337; | |
| 147 | u8 sysctl_tcp_abort_on_overflow; | |
| 148 | u8 sysctl_tcp_fack; /* obsolete */ | |
| c6e21803 | 149 | int sysctl_tcp_max_reordering; |
| 94f0893e | 150 | int sysctl_tcp_adv_win_scale; |
| 4ecc1baf ED |
151 | u8 sysctl_tcp_dsack; |
| 152 | u8 sysctl_tcp_app_win; | |
| 153 | u8 sysctl_tcp_frto; | |
| 154 | u8 sysctl_tcp_nometrics_save; | |
| 155 | u8 sysctl_tcp_no_ssthresh_metrics_save; | |
| 156 | u8 sysctl_tcp_moderate_rcvbuf; | |
| 157 | u8 sysctl_tcp_tso_win_divisor; | |
| 158 | u8 sysctl_tcp_workaround_signed_windows; | |
| 9184d8bb | 159 | int sysctl_tcp_limit_output_bytes; |
| b530b681 | 160 | int sysctl_tcp_challenge_ack_limit; |
| bd239704 | 161 | int sysctl_tcp_min_rtt_wlen; |
| 4ecc1baf ED |
162 | u8 sysctl_tcp_min_tso_segs; |
| 163 | u8 sysctl_tcp_autocorking; | |
| 164 | u8 sysctl_tcp_reflect_tos; | |
| 1c3289c9 | 165 | u8 sysctl_tcp_comp_sack_nr; |
| 4170ba6b | 166 | int sysctl_tcp_invalid_ratelimit; |
| 23a7102a | 167 | int sysctl_tcp_pacing_ss_ratio; |
| c26e91f8 | 168 | int sysctl_tcp_pacing_ca_ratio; |
| 356d1833 ED |
169 | int sysctl_tcp_wmem[3]; |
| 170 | int sysctl_tcp_rmem[3]; | |
| 6d82aa24 | 171 | unsigned long sysctl_tcp_comp_sack_delay_ns; |
| a70437cc | 172 | unsigned long sysctl_tcp_comp_sack_slack_ns; |
| fee83d09 | 173 | int sysctl_max_syn_backlog; |
| e1cfcbe8 | 174 | int sysctl_tcp_fastopen; |
| 6670e152 | 175 | const struct tcp_congestion_ops __rcu *tcp_congestion_control; |
| 43713848 | 176 | struct tcp_fastopen_context __rcu *tcp_fastopen_ctx; |
| 3733be14 HY |
177 | unsigned int sysctl_tcp_fastopen_blackhole_timeout; |
| 178 | atomic_t tfo_active_disable_times; | |
| 179 | unsigned long tfo_active_disable_stamp; | |
| 12ed8244 | 180 | |
| 1e802951 TZ |
181 | int sysctl_udp_wmem_min; |
| 182 | int sysctl_udp_rmem_min; | |
| 183 | ||
| b2908fac | 184 | u8 sysctl_fib_notify_on_flag_change; |
| 680aea08 | 185 | |
| 63a6fff3 | 186 | #ifdef CONFIG_NET_L3_MASTER_DEV |
| cd04bd02 | 187 | u8 sysctl_udp_l3mdev_accept; |
| 63a6fff3 RS |
188 | #endif |
| 189 | ||
| 7d4b37eb | 190 | u8 sysctl_igmp_llm_reports; |
| 815c5270 | 191 | int sysctl_igmp_max_memberships; |
| 166b6b2d | 192 | int sysctl_igmp_max_msf; |
| 165094af | 193 | int sysctl_igmp_qrv; |
| 815c5270 | 194 | |
| ba6b918a | 195 | struct ping_group_range ping_group_range; |
| c319b4d7 | 196 | |
| 436c3b66 | 197 | atomic_t dev_addr_genid; |
| 70a269e6 | 198 | |
| 122ff243 WC |
199 | #ifdef CONFIG_SYSCTL |
| 200 | unsigned long *sysctl_local_reserved_ports; | |
| 4548b683 | 201 | int sysctl_ip_prot_sock; |
| 122ff243 WC |
202 | #endif |
| 203 | ||
| 70a269e6 | 204 | #ifdef CONFIG_IP_MROUTE |
| f0ad0860 | 205 | #ifndef CONFIG_IP_MROUTE_MULTIPLE_TABLES |
| 0c12295a | 206 | struct mr_table *mrt; |
| f0ad0860 PM |
207 | #else |
| 208 | struct list_head mr_tables; | |
| 209 | struct fib_rules_ops *mr_rules_ops; | |
| 210 | #endif | |
| a6db4494 DA |
211 | #endif |
| 212 | #ifdef CONFIG_IP_ROUTE_MULTIPATH | |
| ce5c9c20 | 213 | u32 sysctl_fib_multipath_hash_fields; |
| be205fe6 ED |
214 | u8 sysctl_fib_multipath_use_neigh; |
| 215 | u8 sysctl_fib_multipath_hash_policy; | |
| 70a269e6 | 216 | #endif |
| cacaad11 | 217 | |
| 04b1d4e5 | 218 | struct fib_notifier_ops *notifier_ops; |
| cacaad11 IS |
219 | unsigned int fib_seq; /* protected by rtnl_mutex */ |
| 220 | ||
| 4d65b948 YG |
221 | struct fib_notifier_ops *ipmr_notifier_ops; |
| 222 | unsigned int ipmr_seq; /* protected by rtnl_mutex */ | |
| 223 | ||
| ca4c3fc2 | 224 | atomic_t rt_genid; |
| df453700 | 225 | siphash_key_t ip_id_key; |
| 8afd351c PE |
226 | }; |
| 227 | #endif |