/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __NETNS_CONNTRACK_H
#define __NETNS_CONNTRACK_H

#include <linux/list.h>
#include <linux/list_nulls.h>
#include <linux/atomic.h>
#include <linux/workqueue.h>
#include <linux/netfilter/nf_conntrack_tcp.h>
#ifdef CONFIG_NF_CT_PROTO_SCTP
#include <linux/netfilter/nf_conntrack_sctp.h>
#endif
#include <linux/seqlock.h>

struct ctl_table_header;
struct nf_conntrack_ecache;

struct nf_generic_net {
        unsigned int timeout;
};

struct nf_tcp_net {
        unsigned int timeouts[TCP_CONNTRACK_TIMEOUT_MAX];
        u8 tcp_loose;
        u8 tcp_be_liberal;
        u8 tcp_max_retrans;
        u8 tcp_ignore_invalid_rst;
#if IS_ENABLED(CONFIG_NF_FLOW_TABLE)
        unsigned int offload_timeout;
#endif
};

enum udp_conntrack {
        UDP_CT_UNREPLIED,
        UDP_CT_REPLIED,
        UDP_CT_MAX
};

struct nf_udp_net {
        unsigned int timeouts[UDP_CT_MAX];
#if IS_ENABLED(CONFIG_NF_FLOW_TABLE)
        unsigned int offload_timeout;
#endif
};

struct nf_icmp_net {
        unsigned int timeout;
};

#ifdef CONFIG_NF_CT_PROTO_SCTP
struct nf_sctp_net {
        unsigned int timeouts[SCTP_CONNTRACK_MAX];
};
#endif

#ifdef CONFIG_NF_CT_PROTO_GRE
enum gre_conntrack {
        GRE_CT_UNREPLIED,
        GRE_CT_REPLIED,
        GRE_CT_MAX
};

struct nf_gre_net {
        struct list_head        keymap_list;
        unsigned int            timeouts[GRE_CT_MAX];
};
#endif

struct nf_ip_net {
        struct nf_generic_net   generic;
        struct nf_tcp_net       tcp;
        struct nf_udp_net       udp;
        struct nf_icmp_net      icmp;
        struct nf_icmp_net      icmpv6;
#ifdef CONFIG_NF_CT_PROTO_SCTP
        struct nf_sctp_net      sctp;
#endif
#ifdef CONFIG_NF_CT_PROTO_GRE
        struct nf_gre_net       gre;
#endif
};

struct netns_ct {
#ifdef CONFIG_NF_CONNTRACK_EVENTS
        bool ecache_dwork_pending;
#endif
        u8                      sysctl_log_invalid; /* Log invalid packets */
        u8                      sysctl_events;
        u8                      sysctl_acct;
        u8                      sysctl_tstamp;
        u8                      sysctl_checksum;

        struct ip_conntrack_stat __percpu *stat;
        struct nf_ct_event_notifier __rcu *nf_conntrack_event_cb;
        struct nf_ip_net        nf_ct_proto;
#if defined(CONFIG_NF_CONNTRACK_LABELS)
        atomic_t                labels_used;
#endif
};
#endif