ipv4.h

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/*
 * ipv4 in net namespaces
 */

#ifndef __NETNS_IPV4_H__
#define __NETNS_IPV4_H__

#include <linux/uidgid.h>
#include <net/inet_frag.h>

struct tcpm_hash_bucket;
struct ctl_table_header;
struct ipv4_devconf;
struct fib_rules_ops;
struct hlist_head;
struct fib_table;
struct sock;

struct netns_ipv4 {
#ifdef CONFIG_SYSCTL
    struct ctl_table_header *forw_hdr;
    struct ctl_table_header *frags_hdr;
    struct ctl_table_header *ipv4_hdr;
    struct ctl_table_header *route_hdr;
#endif
    struct ipv4_devconf *devconf_all;
    struct ipv4_devconf *devconf_dflt;
#ifdef CONFIG_IP_MULTIPLE_TABLES
    struct fib_rules_ops    *rules_ops;
    bool            fib_has_custom_rules;
    struct fib_table    *fib_local;
    struct fib_table    *fib_main;
    struct fib_table    *fib_default;
#endif
#ifdef CONFIG_IP_ROUTE_CLASSID
    int         fib_num_tclassid_users;
#endif
    struct hlist_head   *fib_table_hash;
    struct sock     *fibnl;

    struct sock     **icmp_sk;
    struct inet_peer_base   *peers;
    struct tcpm_hash_bucket *tcp_metrics_hash;
    unsigned int        tcp_metrics_hash_log;
    struct netns_frags  frags;
#ifdef CONFIG_NETFILTER
    struct xt_table     *iptable_filter;
    struct xt_table     *iptable_mangle;
    struct xt_table     *iptable_raw;
    struct xt_table     *arptable_filter;
#ifdef CONFIG_SECURITY
    struct xt_table     *iptable_security;
#endif
    struct xt_table     *nat_table;
#endif

    int sysctl_icmp_echo_ignore_all;
    int sysctl_icmp_echo_ignore_broadcasts;
    int sysctl_icmp_ignore_bogus_error_responses;
    int sysctl_icmp_ratelimit;
    int sysctl_icmp_ratemask;
    int sysctl_icmp_errors_use_inbound_ifaddr;

    kgid_t sysctl_ping_group_range[2];
    long sysctl_tcp_mem[3];

    atomic_t dev_addr_genid;

#ifdef CONFIG_IP_MROUTE
#ifndef CONFIG_IP_MROUTE_MULTIPLE_TABLES
    struct mr_table     *mrt;
#else
    struct list_head    mr_tables;
    struct fib_rules_ops    *mr_rules_ops;
#endif
#endif
};
#endif