[mirror_ubuntu-bionic-kernel.git] / include / net / netns / ipv4.h

/*
 * 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>

struct tcpm_hash_bucket;
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 {
	atomic_t		tw_count;

	struct inet_hashinfo 	*hashinfo ____cacheline_aligned_in_smp;
	int			sysctl_max_tw_buckets;
};

struct tcp_fastopen_context;

struct netns_ipv4 {
#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;
#ifdef CONFIG_IP_MULTIPLE_TABLES
	struct fib_rules_ops	*rules_ops;
	bool			fib_has_custom_rules;
	struct fib_table __rcu	*fib_main;
	struct fib_table __rcu	*fib_default;
#endif
	bool			fib_has_custom_local_routes;
#ifdef CONFIG_IP_ROUTE_CLASSID
	int			fib_num_tclassid_users;
#endif
	struct hlist_head	*fib_table_hash;
	bool			fib_offload_disabled;
	struct sock		*fibnl;

	struct sock  * __percpu	*icmp_sk;
	struct sock		*mc_autojoin_sk;

	struct inet_peer_base	*peers;
	struct sock  * __percpu	*tcp_sk;
	struct netns_frags	frags;
#ifdef CONFIG_NETFILTER
	struct xt_table		*iptable_filter;
	struct xt_table		*iptable_mangle;
	struct xt_table		*iptable_raw;
	struct xt_table		*arptable_filter;
#ifdef CONFIG_SECURITY
	struct xt_table		*iptable_security;
#endif
	struct xt_table		*nat_table;
#endif

	int sysctl_icmp_echo_ignore_all;
	int sysctl_icmp_echo_ignore_broadcasts;
	int sysctl_icmp_ignore_bogus_error_responses;
	int sysctl_icmp_ratelimit;
	int sysctl_icmp_ratemask;
	int sysctl_icmp_errors_use_inbound_ifaddr;

	struct local_ports ip_local_ports;

	int sysctl_tcp_ecn;
	int sysctl_tcp_ecn_fallback;

	int sysctl_ip_default_ttl;
	int sysctl_ip_no_pmtu_disc;
	int sysctl_ip_fwd_use_pmtu;
	int sysctl_ip_nonlocal_bind;
	/* Shall we try to damage output packets if routing dev changes? */
	int sysctl_ip_dynaddr;
	int sysctl_ip_early_demux;
	int sysctl_tcp_early_demux;
	int sysctl_udp_early_demux;

	int sysctl_fwmark_reflect;
	int sysctl_tcp_fwmark_accept;
#ifdef CONFIG_NET_L3_MASTER_DEV
	int sysctl_tcp_l3mdev_accept;
#endif
	int sysctl_tcp_mtu_probing;
	int sysctl_tcp_base_mss;
	int sysctl_tcp_probe_threshold;
	u32 sysctl_tcp_probe_interval;

	int sysctl_tcp_keepalive_time;
	int sysctl_tcp_keepalive_probes;
	int sysctl_tcp_keepalive_intvl;

	int sysctl_tcp_syn_retries;
	int sysctl_tcp_synack_retries;
	int sysctl_tcp_syncookies;
	int sysctl_tcp_reordering;
	int sysctl_tcp_retries1;
	int sysctl_tcp_retries2;
	int sysctl_tcp_orphan_retries;
	int sysctl_tcp_fin_timeout;
	unsigned int sysctl_tcp_notsent_lowat;
	int sysctl_tcp_tw_reuse;
	int sysctl_tcp_sack;
	int sysctl_tcp_window_scaling;
	int sysctl_tcp_timestamps;
	int sysctl_tcp_early_retrans;
	int sysctl_tcp_recovery;
	int sysctl_tcp_thin_linear_timeouts;
	int sysctl_tcp_slow_start_after_idle;
	int sysctl_tcp_retrans_collapse;
	int sysctl_tcp_stdurg;
	int sysctl_tcp_rfc1337;
	int sysctl_tcp_abort_on_overflow;
	int sysctl_tcp_fack;
	int sysctl_tcp_max_reordering;
	int sysctl_tcp_dsack;
	int sysctl_tcp_app_win;
	int sysctl_tcp_adv_win_scale;
	int sysctl_tcp_frto;
	int sysctl_tcp_nometrics_save;
	int sysctl_tcp_moderate_rcvbuf;
	int sysctl_tcp_tso_win_divisor;
	int sysctl_tcp_workaround_signed_windows;
	int sysctl_tcp_limit_output_bytes;
	int sysctl_tcp_challenge_ack_limit;
	int sysctl_tcp_min_tso_segs;
	int sysctl_tcp_min_rtt_wlen;
	struct inet_timewait_death_row tcp_death_row;
	int sysctl_max_syn_backlog;
	int sysctl_tcp_fastopen;
	struct tcp_fastopen_context __rcu *tcp_fastopen_ctx;
	spinlock_t tcp_fastopen_ctx_lock;
	unsigned int sysctl_tcp_fastopen_blackhole_timeout;
	atomic_t tfo_active_disable_times;
	unsigned long tfo_active_disable_stamp;

#ifdef CONFIG_NET_L3_MASTER_DEV
	int sysctl_udp_l3mdev_accept;
#endif

	int sysctl_igmp_max_memberships;
	int sysctl_igmp_max_msf;
	int sysctl_igmp_llm_reports;
	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
	int sysctl_fib_multipath_use_neigh;
	int 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;
};
#endif
Commit	Line	Data
8afd351c PE	1	/*
	2	* ipv4 in net namespaces
	3	*/
	4
	5	#ifndef __NETNS_IPV4_H__
	6	#define __NETNS_IPV4_H__
e4e4971c	7
7064d16e	8	#include <linux/uidgid.h>
ac18e750	9	#include <net/inet_frag.h>
a7e53531	10	#include <linux/rcupdate.h>
ac18e750	11
51c5d0c4	12	struct tcpm_hash_bucket;
752d14dc PE	13	struct ctl_table_header;
752d14dc PE	14	struct ipv4_devconf;
e4e4971c	15	struct fib_rules_ops;
e4aef8ae	16	struct hlist_head;
f4530fa5	17	struct fib_table;
6bd48fcf	18	struct sock;
0bbf87d8 EB	19	struct local_ports {
	20	seqlock_t lock;
	21	int range[2];
ed2dfd90	22	bool warned;
0bbf87d8	23	};
752d14dc	24
ba6b918a CW	25	struct ping_group_range {
	26	seqlock_t lock;
	27	kgid_t range[2];
	28	};
	29
1946e672 HY	30	struct inet_hashinfo;
	31
	32	struct inet_timewait_death_row {
	33	atomic_t tw_count;
	34
	35	struct inet_hashinfo *hashinfo ____cacheline_aligned_in_smp;
1946e672 HY	36	int sysctl_max_tw_buckets;
	37	};
	38
43713848 HY	39	struct tcp_fastopen_context;
43713848 HY	40
8afd351c	41	struct netns_ipv4 {
2a75de0c	42	#ifdef CONFIG_SYSCTL
752d14dc	43	struct ctl_table_header *forw_hdr;
e4a2d5c2	44	struct ctl_table_header *frags_hdr;
68528f09	45	struct ctl_table_header *ipv4_hdr;
39a23e75	46	struct ctl_table_header *route_hdr;
8d068875	47	struct ctl_table_header *xfrm4_hdr;
2a75de0c	48	#endif
752d14dc PE	49	struct ipv4_devconf *devconf_all;
752d14dc PE	50	struct ipv4_devconf *devconf_dflt;
e4e4971c DL	51	#ifdef CONFIG_IP_MULTIPLE_TABLES
e4e4971c DL	52	struct fib_rules_ops *rules_ops;
f4530fa5	53	bool fib_has_custom_rules;
a7e53531 AD	54	struct fib_table __rcu *fib_main;
a7e53531 AD	55	struct fib_table __rcu *fib_default;
f4530fa5	56	#endif
a1f3316d	57	bool fib_has_custom_local_routes;
f4530fa5 DM	58	#ifdef CONFIG_IP_ROUTE_CLASSID
f4530fa5 DM	59	int fib_num_tclassid_users;
e4e4971c	60	#endif
e4aef8ae	61	struct hlist_head *fib_table_hash;
448b128a	62	bool fib_offload_disabled;
6bd48fcf	63	struct sock *fibnl;
ac18e750	64
349c9e3c	65	struct sock * __percpu *icmp_sk;
93a714d6	66	struct sock *mc_autojoin_sk;
349c9e3c	67
c8a627ed	68	struct inet_peer_base *peers;
bdbbb852	69	struct sock * __percpu *tcp_sk;
ac18e750	70	struct netns_frags frags;
9335f047 AD	71	#ifdef CONFIG_NETFILTER
	72	struct xt_table *iptable_filter;
	73	struct xt_table *iptable_mangle;
	74	struct xt_table *iptable_raw;
9ea0cb26	75	struct xt_table *arptable_filter;
e9d3897c	76	#ifdef CONFIG_SECURITY
560ee653	77	struct xt_table *iptable_security;
e9d3897c	78	#endif
e099a173	79	struct xt_table *nat_table;
9335f047	80	#endif
a24022e1 PE	81
	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;
9f5e97e5	88
c9d8f1a6	89	struct local_ports ip_local_ports;
0bbf87d8	90
5d134f1c	91	int sysctl_tcp_ecn;
49213555 DB	92	int sysctl_tcp_ecn_fallback;
49213555 DB	93
fa50d974	94	int sysctl_ip_default_ttl;
974eda11	95	int sysctl_ip_no_pmtu_disc;
f87c10a8	96	int sysctl_ip_fwd_use_pmtu;
49a60158	97	int sysctl_ip_nonlocal_bind;
287b7f38 NB	98	/* Shall we try to damage output packets if routing dev changes? */
287b7f38 NB	99	int sysctl_ip_dynaddr;
e21145a9	100	int sysctl_ip_early_demux;
dddb64bc SAK	101	int sysctl_tcp_early_demux;
dddb64bc SAK	102	int sysctl_udp_early_demux;
5d134f1c	103
e110861f	104	int sysctl_fwmark_reflect;
84f39b08	105	int sysctl_tcp_fwmark_accept;
6dd9a14e DA	106	#ifdef CONFIG_NET_L3_MASTER_DEV
	107	int sysctl_tcp_l3mdev_accept;
	108	#endif
b0f9ca53 FD	109	int sysctl_tcp_mtu_probing;
b0f9ca53 FD	110	int sysctl_tcp_base_mss;
6b58e0a5	111	int sysctl_tcp_probe_threshold;
05cbc0db	112	u32 sysctl_tcp_probe_interval;
e110861f	113
13b287e8	114	int sysctl_tcp_keepalive_time;
9bd6861b	115	int sysctl_tcp_keepalive_probes;
b840d15d	116	int sysctl_tcp_keepalive_intvl;
13b287e8	117
6fa25166	118	int sysctl_tcp_syn_retries;
7c083ecb	119	int sysctl_tcp_synack_retries;
12ed8244	120	int sysctl_tcp_syncookies;
1043e25f	121	int sysctl_tcp_reordering;
ae5c3f40	122	int sysctl_tcp_retries1;
c6214a97	123	int sysctl_tcp_retries2;
c402d9be	124	int sysctl_tcp_orphan_retries;
1e579caa	125	int sysctl_tcp_fin_timeout;
4979f2d9	126	unsigned int sysctl_tcp_notsent_lowat;
56ab6b93	127	int sysctl_tcp_tw_reuse;
f9301034	128	int sysctl_tcp_sack;
9bb37ef0	129	int sysctl_tcp_window_scaling;
5d2ed052	130	int sysctl_tcp_timestamps;
2ae21cf5	131	int sysctl_tcp_early_retrans;
e20223f1	132	int sysctl_tcp_recovery;
2c04ac8a	133	int sysctl_tcp_thin_linear_timeouts;
b510f0d2	134	int sysctl_tcp_slow_start_after_idle;
e0a1e5b5	135	int sysctl_tcp_retrans_collapse;
3f4c7c6f	136	int sysctl_tcp_stdurg;
625357aa	137	int sysctl_tcp_rfc1337;
65c9410c	138	int sysctl_tcp_abort_on_overflow;
0bc65a28	139	int sysctl_tcp_fack;
c6e21803	140	int sysctl_tcp_max_reordering;
6496f6bd	141	int sysctl_tcp_dsack;
0c12654a	142	int sysctl_tcp_app_win;
94f0893e	143	int sysctl_tcp_adv_win_scale;
af9b69a7	144	int sysctl_tcp_frto;
ec36e416	145	int sysctl_tcp_nometrics_save;
4540c0cf	146	int sysctl_tcp_moderate_rcvbuf;
d06a9904	147	int sysctl_tcp_tso_win_divisor;
ceef9ab6	148	int sysctl_tcp_workaround_signed_windows;
9184d8bb	149	int sysctl_tcp_limit_output_bytes;
b530b681	150	int sysctl_tcp_challenge_ack_limit;
26e9596e	151	int sysctl_tcp_min_tso_segs;
bd239704	152	int sysctl_tcp_min_rtt_wlen;
1946e672	153	struct inet_timewait_death_row tcp_death_row;
fee83d09	154	int sysctl_max_syn_backlog;
e1cfcbe8	155	int sysctl_tcp_fastopen;
43713848 HY	156	struct tcp_fastopen_context __rcu *tcp_fastopen_ctx;
43713848 HY	157	spinlock_t tcp_fastopen_ctx_lock;
3733be14 HY	158	unsigned int sysctl_tcp_fastopen_blackhole_timeout;
	159	atomic_t tfo_active_disable_times;
	160	unsigned long tfo_active_disable_stamp;
12ed8244	161
63a6fff3 RS	162	#ifdef CONFIG_NET_L3_MASTER_DEV
	163	int sysctl_udp_l3mdev_accept;
	164	#endif
	165
815c5270	166	int sysctl_igmp_max_memberships;
166b6b2d	167	int sysctl_igmp_max_msf;
87a8a2ae	168	int sysctl_igmp_llm_reports;
165094af	169	int sysctl_igmp_qrv;
815c5270	170
ba6b918a	171	struct ping_group_range ping_group_range;
c319b4d7	172
436c3b66	173	atomic_t dev_addr_genid;
70a269e6	174
122ff243 WC	175	#ifdef CONFIG_SYSCTL
122ff243 WC	176	unsigned long *sysctl_local_reserved_ports;
4548b683	177	int sysctl_ip_prot_sock;
122ff243 WC	178	#endif
122ff243 WC	179
70a269e6	180	#ifdef CONFIG_IP_MROUTE
f0ad0860	181	#ifndef CONFIG_IP_MROUTE_MULTIPLE_TABLES
0c12295a	182	struct mr_table *mrt;
f0ad0860 PM	183	#else
	184	struct list_head mr_tables;
	185	struct fib_rules_ops *mr_rules_ops;
	186	#endif
a6db4494 DA	187	#endif
	188	#ifdef CONFIG_IP_ROUTE_MULTIPATH
	189	int sysctl_fib_multipath_use_neigh;
bf4e0a3d	190	int sysctl_fib_multipath_hash_policy;
70a269e6	191	#endif
cacaad11	192
04b1d4e5	193	struct fib_notifier_ops *notifier_ops;
cacaad11 IS	194	unsigned int fib_seq; /* protected by rtnl_mutex */
cacaad11 IS	195
4d65b948 YG	196	struct fib_notifier_ops *ipmr_notifier_ops;
	197	unsigned int ipmr_seq; /* protected by rtnl_mutex */
	198
ca4c3fc2	199	atomic_t rt_genid;
8afd351c PE	200	};
8afd351c PE	201	#endif