include/net/netns/ipv4.h

   1 /*
   2  * ipv4 in net namespaces
   3  */
   4
   5 #ifndef __NETNS_IPV4_H__
   6 #define __NETNS_IPV4_H__
   7
   8 #include <linux/uidgid.h>
   9 #include <net/inet_frag.h>
  10 #include <linux/rcupdate.h>
  11
  12 struct tcpm_hash_bucket;
  13 struct ctl_table_header;
  14 struct ipv4_devconf;
  15 struct fib_rules_ops;
  16 struct hlist_head;
  17 struct fib_table;
  18 struct sock;
  19 struct local_ports {
  20         seqlock_t       lock;
  21         int             range[2];
  22         bool            warned;
  23 };
  24
  25 struct ping_group_range {
  26         seqlock_t       lock;
  27         kgid_t          range[2];
  28 };
  29
  30 struct netns_ipv4 {
  31 #ifdef CONFIG_SYSCTL
  32         struct ctl_table_header *forw_hdr;
  33         struct ctl_table_header *frags_hdr;
  34         struct ctl_table_header *ipv4_hdr;
  35         struct ctl_table_header *route_hdr;
  36         struct ctl_table_header *xfrm4_hdr;
  37 #endif
  38         struct ipv4_devconf     *devconf_all;
  39         struct ipv4_devconf     *devconf_dflt;
  40 #ifdef CONFIG_IP_MULTIPLE_TABLES
  41         struct fib_rules_ops    *rules_ops;
  42         bool                    fib_has_custom_rules;
  43         struct fib_table __rcu  *fib_main;
  44         struct fib_table __rcu  *fib_default;
  45 #endif
  46 #ifdef CONFIG_IP_ROUTE_CLASSID
  47         int                     fib_num_tclassid_users;
  48 #endif
  49         struct hlist_head       *fib_table_hash;
  50         bool                    fib_offload_disabled;
  51         struct sock             *fibnl;
  52
  53         struct sock  * __percpu *icmp_sk;
  54         struct sock             *mc_autojoin_sk;
  55
  56         struct inet_peer_base   *peers;
  57         struct sock  * __percpu *tcp_sk;
  58         struct netns_frags      frags;
  59 #ifdef CONFIG_NETFILTER
  60         struct xt_table         *iptable_filter;
  61         struct xt_table         *iptable_mangle;
  62         struct xt_table         *iptable_raw;
  63         struct xt_table         *arptable_filter;
  64 #ifdef CONFIG_SECURITY
  65         struct xt_table         *iptable_security;
  66 #endif
  67         struct xt_table         *nat_table;
  68 #endif
  69
  70         int sysctl_icmp_echo_ignore_all;
  71         int sysctl_icmp_echo_ignore_broadcasts;
  72         int sysctl_icmp_ignore_bogus_error_responses;
  73         int sysctl_icmp_ratelimit;
  74         int sysctl_icmp_ratemask;
  75         int sysctl_icmp_errors_use_inbound_ifaddr;
  76
  77         struct local_ports ip_local_ports;
  78
  79         int sysctl_tcp_ecn;
  80         int sysctl_tcp_ecn_fallback;
  81
  82         int sysctl_ip_default_ttl;
  83         int sysctl_ip_no_pmtu_disc;
  84         int sysctl_ip_fwd_use_pmtu;
  85         int sysctl_ip_nonlocal_bind;
  86         /* Shall we try to damage output packets if routing dev changes? */
  87         int sysctl_ip_dynaddr;
  88         int sysctl_ip_early_demux;
  89
  90         int sysctl_fwmark_reflect;
  91         int sysctl_tcp_fwmark_accept;
  92 #ifdef CONFIG_NET_L3_MASTER_DEV
  93         int sysctl_tcp_l3mdev_accept;
  94 #endif
  95         int sysctl_tcp_mtu_probing;
  96         int sysctl_tcp_base_mss;
  97         int sysctl_tcp_probe_threshold;
  98         u32 sysctl_tcp_probe_interval;
  99
 100         int sysctl_tcp_keepalive_time;
 101         int sysctl_tcp_keepalive_probes;
 102         int sysctl_tcp_keepalive_intvl;
 103
 104         int sysctl_tcp_syn_retries;
 105         int sysctl_tcp_synack_retries;
 106         int sysctl_tcp_syncookies;
 107         int sysctl_tcp_reordering;
 108         int sysctl_tcp_retries1;
 109         int sysctl_tcp_retries2;
 110         int sysctl_tcp_orphan_retries;
 111         int sysctl_tcp_fin_timeout;
 112         unsigned int sysctl_tcp_notsent_lowat;
 113
 114         int sysctl_igmp_max_memberships;
 115         int sysctl_igmp_max_msf;
 116         int sysctl_igmp_llm_reports;
 117         int sysctl_igmp_qrv;
 118
 119         struct ping_group_range ping_group_range;
 120
 121         atomic_t dev_addr_genid;
 122
 123 #ifdef CONFIG_SYSCTL
 124         unsigned long *sysctl_local_reserved_ports;
 125 #endif
 126
 127 #ifdef CONFIG_IP_MROUTE
 128 #ifndef CONFIG_IP_MROUTE_MULTIPLE_TABLES
 129         struct mr_table         *mrt;
 130 #else
 131         struct list_head        mr_tables;
 132         struct fib_rules_ops    *mr_rules_ops;
 133 #endif
 134 #endif
 135 #ifdef CONFIG_IP_ROUTE_MULTIPATH
 136         int sysctl_fib_multipath_use_neigh;
 137 #endif
 138         atomic_t        rt_genid;
 139 };
 140 #endif