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 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 bool skip_notify_on_dev_down; 57 u8 fib_notify_on_flag_change; 58 u8 icmpv6_error_anycast_as_unicast; 59 }; 60 61 struct netns_ipv6 { 62 /* Keep ip6_dst_ops at the beginning of netns_sysctl_ipv6 */ 63 struct dst_ops ip6_dst_ops; 64 65 struct netns_sysctl_ipv6 sysctl; 66 struct ipv6_devconf *devconf_all; 67 struct ipv6_devconf *devconf_dflt; 68 struct inet_peer_base *peers; 69 struct fqdir *fqdir; 70 struct fib6_info *fib6_null_entry; 71 struct rt6_info *ip6_null_entry; 72 struct rt6_statistics *rt6_stats; 73 struct timer_list ip6_fib_timer; 74 struct hlist_head *fib_table_hash; 75 struct fib6_table *fib6_main_tbl; 76 struct list_head fib6_walkers; 77 rwlock_t fib6_walker_lock; 78 spinlock_t fib6_gc_lock; 79 atomic_t ip6_rt_gc_expire; 80 unsigned long ip6_rt_last_gc; 81 unsigned char flowlabel_has_excl; 82 #ifdef CONFIG_IPV6_MULTIPLE_TABLES 83 bool fib6_has_custom_rules; 84 unsigned int fib6_rules_require_fldissect; 85 #ifdef CONFIG_IPV6_SUBTREES 86 unsigned int fib6_routes_require_src; 87 #endif 88 struct rt6_info *ip6_prohibit_entry; 89 struct rt6_info *ip6_blk_hole_entry; 90 struct fib6_table *fib6_local_tbl; 91 struct fib_rules_ops *fib6_rules_ops; 92 #endif 93 struct sock *ndisc_sk; 94 struct sock *tcp_sk; 95 struct sock *igmp_sk; 96 struct sock *mc_autojoin_sk; 97 98 struct hlist_head *inet6_addr_lst; 99 spinlock_t addrconf_hash_lock; 100 struct delayed_work addr_chk_work; 101 102 #ifdef CONFIG_IPV6_MROUTE 103 #ifndef CONFIG_IPV6_MROUTE_MULTIPLE_TABLES 104 struct mr_table *mrt6; 105 #else 106 struct list_head mr6_tables; 107 struct fib_rules_ops *mr6_rules_ops; 108 #endif 109 #endif 110 atomic_t dev_addr_genid; 111 atomic_t fib6_sernum; 112 struct seg6_pernet_data *seg6_data; 113 struct fib_notifier_ops *notifier_ops; 114 struct fib_notifier_ops *ip6mr_notifier_ops; 115 unsigned int ipmr_seq; /* protected by rtnl_mutex */ 116 struct { 117 struct hlist_head head; 118 spinlock_t lock; 119 u32 seq; 120 } ip6addrlbl_table; 121 struct ioam6_pernet_data *ioam6_data; 122 }; 123 124 #if IS_ENABLED(CONFIG_NF_DEFRAG_IPV6) 125 struct netns_nf_frag { 126 struct fqdir *fqdir; 127 }; 128 #endif 129 130 #endif 131