include/net/netns/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
  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         u8 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