ipv6.h

  1/* SPDX-License-Identifier: GPL-2.0 */
  2/*
  3 * ipv6 in net namespaces
  4 */
  5
  6#include <net/inet_frag.h>
  7
  8#ifndef __NETNS_IPV6_H__
  9#define __NETNS_IPV6_H__
 10#include <net/dst_ops.h>
 11#include <uapi/linux/icmpv6.h>
 12
 13struct ctl_table_header;
 14
 15struct netns_sysctl_ipv6 {
 16#ifdef CONFIG_SYSCTL
 17	struct ctl_table_header *hdr;
 18	struct ctl_table_header *route_hdr;
 19	struct ctl_table_header *icmp_hdr;
 20	struct ctl_table_header *frags_hdr;
 21	struct ctl_table_header *xfrm6_hdr;
 22#endif
 23	int flush_delay;
 24	int ip6_rt_max_size;
 25	int ip6_rt_gc_min_interval;
 26	int ip6_rt_gc_timeout;
 27	int ip6_rt_gc_interval;
 28	int ip6_rt_gc_elasticity;
 29	int ip6_rt_mtu_expires;
 30	int ip6_rt_min_advmss;
 31	u32 multipath_hash_fields;
 32	u8 multipath_hash_policy;
 33	u8 bindv6only;
 34	u8 flowlabel_consistency;
 35	u8 auto_flowlabels;
 36	int icmpv6_time;
 37	u8 icmpv6_echo_ignore_all;
 38	u8 icmpv6_echo_ignore_multicast;
 39	u8 icmpv6_echo_ignore_anycast;
 40	DECLARE_BITMAP(icmpv6_ratemask, ICMPV6_MSG_MAX + 1);
 41	unsigned long *icmpv6_ratemask_ptr;
 42	u8 anycast_src_echo_reply;
 43	u8 ip_nonlocal_bind;
 44	u8 fwmark_reflect;
 45	u8 flowlabel_state_ranges;
 46	int idgen_retries;
 47	int idgen_delay;
 48	int flowlabel_reflect;
 49	int max_dst_opts_cnt;
 50	int max_hbh_opts_cnt;
 51	int max_dst_opts_len;
 52	int max_hbh_opts_len;
 53	int seg6_flowlabel;
 54	u32 ioam6_id;
 55	u64 ioam6_id_wide;
 56	u8 skip_notify_on_dev_down;
 57	u8 fib_notify_on_flag_change;
 58	u8 icmpv6_error_anycast_as_unicast;
 59	u8 icmpv6_errors_extension_mask;
 60};
 61
 62struct netns_ipv6 {
 63	/* Keep ip6_dst_ops at the beginning of netns_sysctl_ipv6 */
 64	struct dst_ops		ip6_dst_ops;
 65
 66	struct netns_sysctl_ipv6 sysctl;
 67	struct ipv6_devconf	*devconf_all;
 68	struct ipv6_devconf	*devconf_dflt;
 69	struct inet_peer_base	*peers;
 70	struct fqdir		*fqdir;
 71	struct fib6_info	*fib6_null_entry;
 72	struct rt6_info		*ip6_null_entry;
 73	struct rt6_statistics   *rt6_stats;
 74	struct timer_list       ip6_fib_timer;
 75	struct hlist_head       *fib_table_hash;
 76	spinlock_t		fib_table_hash_lock;
 77	struct fib6_table       *fib6_main_tbl;
 78	struct list_head	fib6_walkers;
 79	rwlock_t		fib6_walker_lock;
 80	spinlock_t		fib6_gc_lock;
 81	atomic_t		ip6_rt_gc_expire;
 82	unsigned long		ip6_rt_last_gc;
 83	unsigned char		flowlabel_has_excl;
 84#ifdef CONFIG_IPV6_MULTIPLE_TABLES
 85	bool			fib6_has_custom_rules;
 86	unsigned int		fib6_rules_require_fldissect;
 87#ifdef CONFIG_IPV6_SUBTREES
 88	unsigned int		fib6_routes_require_src;
 89#endif
 90	struct rt6_info         *ip6_prohibit_entry;
 91	struct rt6_info         *ip6_blk_hole_entry;
 92	struct fib6_table       *fib6_local_tbl;
 93	struct fib_rules_ops    *fib6_rules_ops;
 94#endif
 95	struct sock             *ndisc_sk;
 96	struct sock             *tcp_sk;
 97	struct sock             *igmp_sk;
 98	struct sock		*mc_autojoin_sk;
 99
100	struct hlist_head	*inet6_addr_lst;
101	spinlock_t		addrconf_hash_lock;
102	struct delayed_work	addr_chk_work;
103
104#ifdef CONFIG_IPV6_MROUTE
105#ifndef CONFIG_IPV6_MROUTE_MULTIPLE_TABLES
106	struct mr_table		*mrt6;
107#else
108	struct list_head	mr6_tables;
109	struct fib_rules_ops	*mr6_rules_ops;
110#endif
111#endif
112	atomic_t		dev_addr_genid;
113	atomic_t		fib6_sernum;
114	struct seg6_pernet_data *seg6_data;
115	struct fib_notifier_ops	*notifier_ops;
116	struct fib_notifier_ops	*ip6mr_notifier_ops;
117	unsigned int ipmr_seq; /* protected by rtnl_mutex */
118	struct {
119		struct hlist_head head;
120		spinlock_t	lock;
121		u32		seq;
122	} ip6addrlbl_table;
123	struct ioam6_pernet_data *ioam6_data;
124};
125
126#if IS_ENABLED(CONFIG_NF_DEFRAG_IPV6)
127struct netns_nf_frag {
128	struct fqdir	*fqdir;
129};
130#endif
131
132#endif