net/netns/ipv6.h

0001 /* SPDX-License-Identifier: GPL-2.0 */
0002 /*
0003  * ipv6 in net namespaces
0004  */
0005
0006 #include <net/inet_frag.h>
0007
0008 #ifndef __NETNS_IPV6_H__
0009 #define __NETNS_IPV6_H__
0010 #include <net/dst_ops.h>
0011 #include <uapi/linux/icmpv6.h>
0012
0013 struct ctl_table_header;
0014
0015 struct netns_sysctl_ipv6 {
0016 #ifdef CONFIG_SYSCTL
0017     struct ctl_table_header *hdr;
0018     struct ctl_table_header *route_hdr;
0019     struct ctl_table_header *icmp_hdr;
0020     struct ctl_table_header *frags_hdr;
0021     struct ctl_table_header *xfrm6_hdr;
0022 #endif
0023     int flush_delay;
0024     int ip6_rt_max_size;
0025     int ip6_rt_gc_min_interval;
0026     int ip6_rt_gc_timeout;
0027     int ip6_rt_gc_interval;
0028     int ip6_rt_gc_elasticity;
0029     int ip6_rt_mtu_expires;
0030     int ip6_rt_min_advmss;
0031     u32 multipath_hash_fields;
0032     u8 multipath_hash_policy;
0033     u8 bindv6only;
0034     u8 flowlabel_consistency;
0035     u8 auto_flowlabels;
0036     int icmpv6_time;
0037     u8 icmpv6_echo_ignore_all;
0038     u8 icmpv6_echo_ignore_multicast;
0039     u8 icmpv6_echo_ignore_anycast;
0040     DECLARE_BITMAP(icmpv6_ratemask, ICMPV6_MSG_MAX + 1);
0041     unsigned long *icmpv6_ratemask_ptr;
0042     u8 anycast_src_echo_reply;
0043     u8 ip_nonlocal_bind;
0044     u8 fwmark_reflect;
0045     u8 flowlabel_state_ranges;
0046     int idgen_retries;
0047     int idgen_delay;
0048     int flowlabel_reflect;
0049     int max_dst_opts_cnt;
0050     int max_hbh_opts_cnt;
0051     int max_dst_opts_len;
0052     int max_hbh_opts_len;
0053     int seg6_flowlabel;
0054     u32 ioam6_id;
0055     u64 ioam6_id_wide;
0056     bool skip_notify_on_dev_down;
0057     u8 fib_notify_on_flag_change;
0058 };
0059
0060 struct netns_ipv6 {
0061     /* Keep ip6_dst_ops at the beginning of netns_sysctl_ipv6 */
0062     struct dst_ops      ip6_dst_ops;
0063
0064     struct netns_sysctl_ipv6 sysctl;
0065     struct ipv6_devconf *devconf_all;
0066     struct ipv6_devconf *devconf_dflt;
0067     struct inet_peer_base   *peers;
0068     struct fqdir        *fqdir;
0069     struct fib6_info    *fib6_null_entry;
0070     struct rt6_info     *ip6_null_entry;
0071     struct rt6_statistics   *rt6_stats;
0072     struct timer_list       ip6_fib_timer;
0073     struct hlist_head       *fib_table_hash;
0074     struct fib6_table       *fib6_main_tbl;
0075     struct list_head    fib6_walkers;
0076     rwlock_t        fib6_walker_lock;
0077     spinlock_t      fib6_gc_lock;
0078     atomic_t        ip6_rt_gc_expire;
0079     unsigned long       ip6_rt_last_gc;
0080     unsigned char       flowlabel_has_excl;
0081 #ifdef CONFIG_IPV6_MULTIPLE_TABLES
0082     bool            fib6_has_custom_rules;
0083     unsigned int        fib6_rules_require_fldissect;
0084 #ifdef CONFIG_IPV6_SUBTREES
0085     unsigned int        fib6_routes_require_src;
0086 #endif
0087     struct rt6_info         *ip6_prohibit_entry;
0088     struct rt6_info         *ip6_blk_hole_entry;
0089     struct fib6_table       *fib6_local_tbl;
0090     struct fib_rules_ops    *fib6_rules_ops;
0091 #endif
0092     struct sock             *ndisc_sk;
0093     struct sock             *tcp_sk;
0094     struct sock             *igmp_sk;
0095     struct sock     *mc_autojoin_sk;
0096
0097     struct hlist_head   *inet6_addr_lst;
0098     spinlock_t      addrconf_hash_lock;
0099     struct delayed_work addr_chk_work;
0100
0101 #ifdef CONFIG_IPV6_MROUTE
0102 #ifndef CONFIG_IPV6_MROUTE_MULTIPLE_TABLES
0103     struct mr_table     *mrt6;
0104 #else
0105     struct list_head    mr6_tables;
0106     struct fib_rules_ops    *mr6_rules_ops;
0107 #endif
0108 #endif
0109     atomic_t        dev_addr_genid;
0110     atomic_t        fib6_sernum;
0111     struct seg6_pernet_data *seg6_data;
0112     struct fib_notifier_ops *notifier_ops;
0113     struct fib_notifier_ops *ip6mr_notifier_ops;
0114     unsigned int ipmr_seq; /* protected by rtnl_mutex */
0115     struct {
0116         struct hlist_head head;
0117         spinlock_t  lock;
0118         u32     seq;
0119     } ip6addrlbl_table;
0120     struct ioam6_pernet_data *ioam6_data;
0121 };
0122
0123 #if IS_ENABLED(CONFIG_NF_DEFRAG_IPV6)
0124 struct netns_nf_frag {
0125     struct fqdir    *fqdir;
0126 };
0127 #endif
0128
0129 #endif