/* SPDX-License-Identifier: GPL-2.0 */
/*
 * ipv6 in net namespaces
 */

#include <net/inet_frag.h>

#ifndef __NETNS_IPV6_H__
#define __NETNS_IPV6_H__
#include <net/dst_ops.h>
#include <uapi/linux/icmpv6.h>

struct ctl_table_header;

struct netns_sysctl_ipv6 {
#ifdef CONFIG_SYSCTL
        struct ctl_table_header *hdr;
        struct ctl_table_header *route_hdr;
        struct ctl_table_header *icmp_hdr;
        struct ctl_table_header *frags_hdr;
        struct ctl_table_header *xfrm6_hdr;
#endif
        int flush_delay;
        int ip6_rt_max_size;
        int ip6_rt_gc_min_interval;
        int ip6_rt_gc_timeout;
        int ip6_rt_gc_interval;
        int ip6_rt_gc_elasticity;
        int ip6_rt_mtu_expires;
        int ip6_rt_min_advmss;
        u32 multipath_hash_fields;
        u8 multipath_hash_policy;

        __cacheline_group_begin(sysctl_ipv6_flowlabel);
        u8 flowlabel_consistency;
        u8 auto_flowlabels;
        u8 flowlabel_state_ranges;
        __cacheline_group_end(sysctl_ipv6_flowlabel);

        u8 icmpv6_echo_ignore_all;
        u8 icmpv6_echo_ignore_multicast;
        u8 icmpv6_echo_ignore_anycast;
        int icmpv6_time;
        DECLARE_BITMAP(icmpv6_ratemask, ICMPV6_MSG_MAX + 1);
        unsigned long *icmpv6_ratemask_ptr;
        u8 anycast_src_echo_reply;
        u8 bindv6only;
        u8 ip_nonlocal_bind;
        u8 fwmark_reflect;
        int idgen_retries;
        int idgen_delay;
        int flowlabel_reflect;
        int max_dst_opts_cnt;
        int max_hbh_opts_cnt;
        int max_dst_opts_len;
        int max_hbh_opts_len;
        int seg6_flowlabel;
        u32 ioam6_id;
        u64 ioam6_id_wide;
        u8 skip_notify_on_dev_down;
        u8 fib_notify_on_flag_change;
        u8 icmpv6_error_anycast_as_unicast;
        u8 icmpv6_errors_extension_mask;
};

struct netns_ipv6 {
        /* Keep ip6_dst_ops at the beginning of netns_sysctl_ipv6 */
        struct dst_ops          ip6_dst_ops;

        struct netns_sysctl_ipv6 sysctl;
        struct ipv6_devconf     *devconf_all;
        struct ipv6_devconf     *devconf_dflt;
        struct inet_peer_base   *peers;
        struct fqdir            *fqdir;
        struct fib6_info        *fib6_null_entry;
        struct rt6_info         *ip6_null_entry;
        struct rt6_statistics   *rt6_stats;
        struct timer_list       ip6_fib_timer;
        struct hlist_head       *fib_table_hash;
        spinlock_t              fib_table_hash_lock;
        struct fib6_table       *fib6_main_tbl;
        struct list_head        fib6_walkers;
        rwlock_t                fib6_walker_lock;
        spinlock_t              fib6_gc_lock;
        atomic_t                ip6_rt_gc_expire;
        unsigned long           ip6_rt_last_gc;
        unsigned char           flowlabel_has_excl;
#ifdef CONFIG_IPV6_MULTIPLE_TABLES
        bool                    fib6_has_custom_rules;
        unsigned int            fib6_rules_require_fldissect;
#ifdef CONFIG_IPV6_SUBTREES
        unsigned int            fib6_routes_require_src;
#endif
        struct rt6_info         *ip6_prohibit_entry;
        struct rt6_info         *ip6_blk_hole_entry;
        struct fib6_table       *fib6_local_tbl;
        struct fib_rules_ops    *fib6_rules_ops;
#endif
        struct sock             *ndisc_sk;
        struct sock             *tcp_sk;
        struct sock             *igmp_sk;
        struct sock             *mc_autojoin_sk;

        struct hlist_head       *inet6_addr_lst;
        spinlock_t              addrconf_hash_lock;
        struct delayed_work     addr_chk_work;

#ifdef CONFIG_IPV6_MROUTE
#ifndef CONFIG_IPV6_MROUTE_MULTIPLE_TABLES
        struct mr_table         *mrt6;
#else
        struct list_head        mr6_tables;
        struct fib_rules_ops    *mr6_rules_ops;
#endif
#endif
        atomic_t                dev_addr_genid;
        atomic_t                fib6_sernum;
        struct seg6_pernet_data *seg6_data;
        struct fib_notifier_ops *notifier_ops;
        struct fib_notifier_ops *ip6mr_notifier_ops;
        unsigned int ipmr_seq; /* protected by rtnl_mutex */
        struct {
                struct hlist_head head;
                spinlock_t      lock;
                u32             seq;
        } ip6addrlbl_table;
        struct ioam6_pernet_data *ioam6_data;
};

#if IS_ENABLED(CONFIG_NF_DEFRAG_IPV6)
struct netns_nf_frag {
        struct fqdir    *fqdir;
};
#endif

#endif