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Diffstat (limited to '')
| -rw-r--r-- | include/net/netns/ipv4.h | 234 |
1 files changed, 234 insertions, 0 deletions
diff --git a/include/net/netns/ipv4.h b/include/net/netns/ipv4.h new file mode 100644 index 000000000..ede2ff1da --- /dev/null +++ b/include/net/netns/ipv4.h @@ -0,0 +1,234 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * ipv4 in net namespaces + */ + +#ifndef __NETNS_IPV4_H__ +#define __NETNS_IPV4_H__ + +#include <linux/uidgid.h> +#include <net/inet_frag.h> +#include <linux/rcupdate.h> +#include <linux/seqlock.h> +#include <linux/siphash.h> + +struct ctl_table_header; +struct ipv4_devconf; +struct fib_rules_ops; +struct hlist_head; +struct fib_table; +struct sock; +struct local_ports { + seqlock_t lock; + int range[2]; + bool warned; +}; + +struct ping_group_range { + seqlock_t lock; + kgid_t range[2]; +}; + +struct inet_hashinfo; + +struct inet_timewait_death_row { + refcount_t tw_refcount; + + /* Padding to avoid false sharing, tw_refcount can be often written */ + struct inet_hashinfo *hashinfo ____cacheline_aligned_in_smp; + int sysctl_max_tw_buckets; +}; + +struct tcp_fastopen_context; + +struct netns_ipv4 { + struct inet_timewait_death_row tcp_death_row; + +#ifdef CONFIG_SYSCTL + struct ctl_table_header *forw_hdr; + struct ctl_table_header *frags_hdr; + struct ctl_table_header *ipv4_hdr; + struct ctl_table_header *route_hdr; + struct ctl_table_header *xfrm4_hdr; +#endif + struct ipv4_devconf *devconf_all; + struct ipv4_devconf *devconf_dflt; + struct ip_ra_chain __rcu *ra_chain; + struct mutex ra_mutex; +#ifdef CONFIG_IP_MULTIPLE_TABLES + struct fib_rules_ops *rules_ops; + struct fib_table __rcu *fib_main; + struct fib_table __rcu *fib_default; + unsigned int fib_rules_require_fldissect; + bool fib_has_custom_rules; +#endif + bool fib_has_custom_local_routes; + bool fib_offload_disabled; + u8 sysctl_tcp_shrink_window; +#ifdef CONFIG_IP_ROUTE_CLASSID + atomic_t fib_num_tclassid_users; +#endif + struct hlist_head *fib_table_hash; + struct sock *fibnl; + + struct sock *mc_autojoin_sk; + + struct inet_peer_base *peers; + struct fqdir *fqdir; + + u8 sysctl_icmp_echo_ignore_all; + u8 sysctl_icmp_echo_enable_probe; + u8 sysctl_icmp_echo_ignore_broadcasts; + u8 sysctl_icmp_ignore_bogus_error_responses; + u8 sysctl_icmp_errors_use_inbound_ifaddr; + int sysctl_icmp_ratelimit; + int sysctl_icmp_ratemask; + + u32 ip_rt_min_pmtu; + int ip_rt_mtu_expires; + int ip_rt_min_advmss; + + struct local_ports ip_local_ports; + + u8 sysctl_tcp_ecn; + u8 sysctl_tcp_ecn_fallback; + + u8 sysctl_ip_default_ttl; + u8 sysctl_ip_no_pmtu_disc; + u8 sysctl_ip_fwd_use_pmtu; + u8 sysctl_ip_fwd_update_priority; + u8 sysctl_ip_nonlocal_bind; + u8 sysctl_ip_autobind_reuse; + /* Shall we try to damage output packets if routing dev changes? */ + u8 sysctl_ip_dynaddr; + u8 sysctl_ip_early_demux; +#ifdef CONFIG_NET_L3_MASTER_DEV + u8 sysctl_raw_l3mdev_accept; +#endif + u8 sysctl_tcp_early_demux; + u8 sysctl_udp_early_demux; + + u8 sysctl_nexthop_compat_mode; + + u8 sysctl_fwmark_reflect; + u8 sysctl_tcp_fwmark_accept; +#ifdef CONFIG_NET_L3_MASTER_DEV + u8 sysctl_tcp_l3mdev_accept; +#endif + u8 sysctl_tcp_mtu_probing; + int sysctl_tcp_mtu_probe_floor; + int sysctl_tcp_base_mss; + int sysctl_tcp_min_snd_mss; + int sysctl_tcp_probe_threshold; + u32 sysctl_tcp_probe_interval; + + int sysctl_tcp_keepalive_time; + int sysctl_tcp_keepalive_intvl; + u8 sysctl_tcp_keepalive_probes; + + u8 sysctl_tcp_syn_retries; + u8 sysctl_tcp_synack_retries; + u8 sysctl_tcp_syncookies; + u8 sysctl_tcp_migrate_req; + u8 sysctl_tcp_comp_sack_nr; + int sysctl_tcp_reordering; + u8 sysctl_tcp_retries1; + u8 sysctl_tcp_retries2; + u8 sysctl_tcp_orphan_retries; + u8 sysctl_tcp_tw_reuse; + int sysctl_tcp_fin_timeout; + unsigned int sysctl_tcp_notsent_lowat; + u8 sysctl_tcp_sack; + u8 sysctl_tcp_window_scaling; + u8 sysctl_tcp_timestamps; + u8 sysctl_tcp_early_retrans; + u8 sysctl_tcp_recovery; + u8 sysctl_tcp_thin_linear_timeouts; + u8 sysctl_tcp_slow_start_after_idle; + u8 sysctl_tcp_retrans_collapse; + u8 sysctl_tcp_stdurg; + u8 sysctl_tcp_rfc1337; + u8 sysctl_tcp_abort_on_overflow; + u8 sysctl_tcp_fack; /* obsolete */ + int sysctl_tcp_max_reordering; + int sysctl_tcp_adv_win_scale; + u8 sysctl_tcp_dsack; + u8 sysctl_tcp_app_win; + u8 sysctl_tcp_frto; + u8 sysctl_tcp_nometrics_save; + u8 sysctl_tcp_no_ssthresh_metrics_save; + u8 sysctl_tcp_moderate_rcvbuf; + u8 sysctl_tcp_tso_win_divisor; + u8 sysctl_tcp_workaround_signed_windows; + int sysctl_tcp_limit_output_bytes; + int sysctl_tcp_challenge_ack_limit; + int sysctl_tcp_min_rtt_wlen; + u8 sysctl_tcp_min_tso_segs; + u8 sysctl_tcp_tso_rtt_log; + u8 sysctl_tcp_autocorking; + u8 sysctl_tcp_reflect_tos; + int sysctl_tcp_invalid_ratelimit; + int sysctl_tcp_pacing_ss_ratio; + int sysctl_tcp_pacing_ca_ratio; + int sysctl_tcp_wmem[3]; + int sysctl_tcp_rmem[3]; + unsigned int sysctl_tcp_child_ehash_entries; + unsigned long sysctl_tcp_comp_sack_delay_ns; + unsigned long sysctl_tcp_comp_sack_slack_ns; + int sysctl_max_syn_backlog; + int sysctl_tcp_fastopen; + const struct tcp_congestion_ops __rcu *tcp_congestion_control; + struct tcp_fastopen_context __rcu *tcp_fastopen_ctx; + unsigned int sysctl_tcp_fastopen_blackhole_timeout; + atomic_t tfo_active_disable_times; + unsigned long tfo_active_disable_stamp; + u32 tcp_challenge_timestamp; + u32 tcp_challenge_count; + + int sysctl_udp_wmem_min; + int sysctl_udp_rmem_min; + + u8 sysctl_fib_notify_on_flag_change; + +#ifdef CONFIG_NET_L3_MASTER_DEV + u8 sysctl_udp_l3mdev_accept; +#endif + + u8 sysctl_igmp_llm_reports; + int sysctl_igmp_max_memberships; + int sysctl_igmp_max_msf; + int sysctl_igmp_qrv; + + struct ping_group_range ping_group_range; + + atomic_t dev_addr_genid; + +#ifdef CONFIG_SYSCTL + unsigned long *sysctl_local_reserved_ports; + int sysctl_ip_prot_sock; +#endif + +#ifdef CONFIG_IP_MROUTE +#ifndef CONFIG_IP_MROUTE_MULTIPLE_TABLES + struct mr_table *mrt; +#else + struct list_head mr_tables; + struct fib_rules_ops *mr_rules_ops; +#endif +#endif +#ifdef CONFIG_IP_ROUTE_MULTIPATH + u32 sysctl_fib_multipath_hash_fields; + u8 sysctl_fib_multipath_use_neigh; + u8 sysctl_fib_multipath_hash_policy; +#endif + + struct fib_notifier_ops *notifier_ops; + unsigned int fib_seq; /* protected by rtnl_mutex */ + + struct fib_notifier_ops *ipmr_notifier_ops; + unsigned int ipmr_seq; /* protected by rtnl_mutex */ + + atomic_t rt_genid; + siphash_key_t ip_id_key; +}; +#endif |