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 34 __cacheline_group_begin(sysctl_ipv6_flowlabel); 35 u8 flowlabel_consistency; 36 u8 auto_flowlabels; 37 u8 flowlabel_state_ranges; 38 __cacheline_group_end(sysctl_ipv6_flowlabel); 39 40 u8 icmpv6_echo_ignore_all; 41 u8 icmpv6_echo_ignore_multicast; 42 u8 icmpv6_echo_ignore_anycast; 43 int icmpv6_time; 44 DECLARE_BITMAP(icmpv6_ratemask, ICMPV6_MSG_MAX + 1); 45 unsigned long *icmpv6_ratemask_ptr; 46 u8 anycast_src_echo_reply; 47 u8 bindv6only; 48 u8 ip_nonlocal_bind; 49 u8 fwmark_reflect; 50 int idgen_retries; 51 int idgen_delay; 52 int flowlabel_reflect; 53 int max_dst_opts_cnt; 54 int max_hbh_opts_cnt; 55 int max_dst_opts_len; 56 int max_hbh_opts_len; 57 int seg6_flowlabel; 58 u32 ioam6_id; 59 u64 ioam6_id_wide; 60 u8 skip_notify_on_dev_down; 61 u8 fib_notify_on_flag_change; 62 u8 icmpv6_error_anycast_as_unicast; 63 u8 icmpv6_errors_extension_mask; 64 }; 65 66 struct netns_ipv6 { 67 /* Keep ip6_dst_ops at the beginning of netns_sysctl_ipv6 */ 68 struct dst_ops ip6_dst_ops; 69 70 struct netns_sysctl_ipv6 sysctl; 71 struct ipv6_devconf *devconf_all; 72 struct ipv6_devconf *devconf_dflt; 73 struct inet_peer_base *peers; 74 struct fqdir *fqdir; 75 struct fib6_info *fib6_null_entry; 76 struct rt6_info *ip6_null_entry; 77 struct rt6_statistics *rt6_stats; 78 struct timer_list ip6_fib_timer; 79 struct hlist_head *fib_table_hash; 80 spinlock_t fib_table_hash_lock; 81 struct fib6_table *fib6_main_tbl; 82 struct list_head fib6_walkers; 83 rwlock_t fib6_walker_lock; 84 spinlock_t fib6_gc_lock; 85 atomic_t ip6_rt_gc_expire; 86 unsigned long ip6_rt_last_gc; 87 unsigned char flowlabel_has_excl; 88 #ifdef CONFIG_IPV6_MULTIPLE_TABLES 89 bool fib6_has_custom_rules; 90 unsigned int fib6_rules_require_fldissect; 91 #ifdef CONFIG_IPV6_SUBTREES 92 unsigned int fib6_routes_require_src; 93 #endif 94 struct rt6_info *ip6_prohibit_entry; 95 struct rt6_info *ip6_blk_hole_entry; 96 struct fib6_table *fib6_local_tbl; 97 struct fib_rules_ops *fib6_rules_ops; 98 #endif 99 struct sock *ndisc_sk; 100 struct sock *tcp_sk; 101 struct sock *igmp_sk; 102 struct sock *mc_autojoin_sk; 103 104 struct hlist_head *inet6_addr_lst; 105 spinlock_t addrconf_hash_lock; 106 struct delayed_work addr_chk_work; 107 108 #ifdef CONFIG_IPV6_MROUTE 109 #ifndef CONFIG_IPV6_MROUTE_MULTIPLE_TABLES 110 struct mr_table *mrt6; 111 #else 112 struct list_head mr6_tables; 113 struct fib_rules_ops *mr6_rules_ops; 114 #endif 115 #endif 116 atomic_t dev_addr_genid; 117 atomic_t fib6_sernum; 118 struct seg6_pernet_data *seg6_data; 119 struct fib_notifier_ops *notifier_ops; 120 struct fib_notifier_ops *ip6mr_notifier_ops; 121 unsigned int ipmr_seq; /* protected by rtnl_mutex */ 122 struct { 123 struct hlist_head head; 124 spinlock_t lock; 125 u32 seq; 126 } ip6addrlbl_table; 127 struct ioam6_pernet_data *ioam6_data; 128 }; 129 130 #if IS_ENABLED(CONFIG_NF_DEFRAG_IPV6) 131 struct netns_nf_frag { 132 struct fqdir *fqdir; 133 }; 134 #endif 135 136 #endif 137