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 
13 struct ctl_table_header;
14 
15 struct 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 bindv6only;
24 	int flush_delay;
25 	int ip6_rt_max_size;
26 	int ip6_rt_gc_min_interval;
27 	int ip6_rt_gc_timeout;
28 	int ip6_rt_gc_interval;
29 	int ip6_rt_gc_elasticity;
30 	int ip6_rt_mtu_expires;
31 	int ip6_rt_min_advmss;
32 	int multipath_hash_policy;
33 	int flowlabel_consistency;
34 	int auto_flowlabels;
35 	int icmpv6_time;
36 	int icmpv6_echo_ignore_all;
37 	int icmpv6_echo_ignore_multicast;
38 	int icmpv6_echo_ignore_anycast;
39 	DECLARE_BITMAP(icmpv6_ratemask, ICMPV6_MSG_MAX + 1);
40 	unsigned long *icmpv6_ratemask_ptr;
41 	int anycast_src_echo_reply;
42 	int ip_nonlocal_bind;
43 	int fwmark_reflect;
44 	int idgen_retries;
45 	int idgen_delay;
46 	int flowlabel_state_ranges;
47 	int flowlabel_reflect;
48 	int max_dst_opts_cnt;
49 	int max_hbh_opts_cnt;
50 	int max_dst_opts_len;
51 	int max_hbh_opts_len;
52 	int seg6_flowlabel;
53 	bool skip_notify_on_dev_down;
54 };
55 
56 struct netns_ipv6 {
57 	struct netns_sysctl_ipv6 sysctl;
58 	struct ipv6_devconf	*devconf_all;
59 	struct ipv6_devconf	*devconf_dflt;
60 	struct inet_peer_base	*peers;
61 	struct fqdir		*fqdir;
62 #ifdef CONFIG_NETFILTER
63 	struct xt_table		*ip6table_filter;
64 	struct xt_table		*ip6table_mangle;
65 	struct xt_table		*ip6table_raw;
66 #ifdef CONFIG_SECURITY
67 	struct xt_table		*ip6table_security;
68 #endif
69 	struct xt_table		*ip6table_nat;
70 #endif
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 	struct fib6_table       *fib6_main_tbl;
77 	struct list_head	fib6_walkers;
78 	struct dst_ops		ip6_dst_ops;
79 	rwlock_t		fib6_walker_lock;
80 	spinlock_t		fib6_gc_lock;
81 	unsigned int		 ip6_rt_gc_expire;
82 	unsigned long		 ip6_rt_last_gc;
83 #ifdef CONFIG_IPV6_MULTIPLE_TABLES
84 	unsigned int		fib6_rules_require_fldissect;
85 	bool			fib6_has_custom_rules;
86 #ifdef CONFIG_IPV6_SUBTREES
87 	unsigned int		fib6_routes_require_src;
88 #endif
89 	struct rt6_info         *ip6_prohibit_entry;
90 	struct rt6_info         *ip6_blk_hole_entry;
91 	struct fib6_table       *fib6_local_tbl;
92 	struct fib_rules_ops    *fib6_rules_ops;
93 #endif
94 	struct sock * __percpu	*icmp_sk;
95 	struct sock             *ndisc_sk;
96 	struct sock             *tcp_sk;
97 	struct sock             *igmp_sk;
98 	struct sock		*mc_autojoin_sk;
99 #ifdef CONFIG_IPV6_MROUTE
100 #ifndef CONFIG_IPV6_MROUTE_MULTIPLE_TABLES
101 	struct mr_table		*mrt6;
102 #else
103 	struct list_head	mr6_tables;
104 	struct fib_rules_ops	*mr6_rules_ops;
105 #endif
106 #endif
107 	atomic_t		dev_addr_genid;
108 	atomic_t		fib6_sernum;
109 	struct seg6_pernet_data *seg6_data;
110 	struct fib_notifier_ops	*notifier_ops;
111 	struct fib_notifier_ops	*ip6mr_notifier_ops;
112 	unsigned int ipmr_seq; /* protected by rtnl_mutex */
113 	struct {
114 		struct hlist_head head;
115 		spinlock_t	lock;
116 		u32		seq;
117 	} ip6addrlbl_table;
118 };
119 
120 #if IS_ENABLED(CONFIG_NF_DEFRAG_IPV6)
121 struct netns_nf_frag {
122 	struct fqdir	*fqdir;
123 };
124 #endif
125 
126 #endif
127