LXR linux/include/net/netns/conntrack.h

   1#ifndef __NETNS_CONNTRACK_H
   2#define __NETNS_CONNTRACK_H
   3
   4#include <linux/list.h>
   5#include <linux/list_nulls.h>
   6#include <linux/atomic.h>
   7#include <linux/workqueue.h>
   8#include <linux/netfilter/nf_conntrack_tcp.h>
   9#ifdef CONFIG_NF_CT_PROTO_DCCP
  10#include <linux/netfilter/nf_conntrack_dccp.h>
  11#endif
  12#ifdef CONFIG_NF_CT_PROTO_SCTP
  13#include <linux/netfilter/nf_conntrack_sctp.h>
  14#endif
  15#include <linux/seqlock.h>
  16
  17struct ctl_table_header;
  18struct nf_conntrack_ecache;
  19
  20struct nf_proto_net {
  21#ifdef CONFIG_SYSCTL
  22        struct ctl_table_header *ctl_table_header;
  23        struct ctl_table        *ctl_table;
  24#endif
  25        unsigned int            users;
  26};
  27
  28struct nf_generic_net {
  29        struct nf_proto_net pn;
  30        unsigned int timeout;
  31};
  32
  33struct nf_tcp_net {
  34        struct nf_proto_net pn;
  35        unsigned int timeouts[TCP_CONNTRACK_TIMEOUT_MAX];
  36        unsigned int tcp_loose;
  37        unsigned int tcp_be_liberal;
  38        unsigned int tcp_max_retrans;
  39};
  40
  41enum udp_conntrack {
  42        UDP_CT_UNREPLIED,
  43        UDP_CT_REPLIED,
  44        UDP_CT_MAX
  45};
  46
  47struct nf_udp_net {
  48        struct nf_proto_net pn;
  49        unsigned int timeouts[UDP_CT_MAX];
  50};
  51
  52struct nf_icmp_net {
  53        struct nf_proto_net pn;
  54        unsigned int timeout;
  55};
  56
  57#ifdef CONFIG_NF_CT_PROTO_DCCP
  58struct nf_dccp_net {
  59        struct nf_proto_net pn;
  60        int dccp_loose;
  61        unsigned int dccp_timeout[CT_DCCP_MAX + 1];
  62};
  63#endif
  64
  65#ifdef CONFIG_NF_CT_PROTO_SCTP
  66struct nf_sctp_net {
  67        struct nf_proto_net pn;
  68        unsigned int timeouts[SCTP_CONNTRACK_MAX];
  69};
  70#endif
  71
  72struct nf_ip_net {
  73        struct nf_generic_net   generic;
  74        struct nf_tcp_net       tcp;
  75        struct nf_udp_net       udp;
  76        struct nf_icmp_net      icmp;
  77        struct nf_icmp_net      icmpv6;
  78#ifdef CONFIG_NF_CT_PROTO_DCCP
  79        struct nf_dccp_net      dccp;
  80#endif
  81#ifdef CONFIG_NF_CT_PROTO_SCTP
  82        struct nf_sctp_net      sctp;
  83#endif
  84};
  85
  86struct ct_pcpu {
  87        spinlock_t              lock;
  88        struct hlist_nulls_head unconfirmed;
  89        struct hlist_nulls_head dying;
  90};
  91
  92struct netns_ct {
  93        atomic_t                count;
  94        unsigned int            expect_count;
  95#ifdef CONFIG_NF_CONNTRACK_EVENTS
  96        struct delayed_work ecache_dwork;
  97        bool ecache_dwork_pending;
  98#endif
  99#ifdef CONFIG_SYSCTL
 100        struct ctl_table_header *sysctl_header;
 101        struct ctl_table_header *acct_sysctl_header;
 102        struct ctl_table_header *tstamp_sysctl_header;
 103        struct ctl_table_header *event_sysctl_header;
 104        struct ctl_table_header *helper_sysctl_header;
 105#endif
 106        unsigned int            sysctl_log_invalid; /* Log invalid packets */
 107        int                     sysctl_events;
 108        int                     sysctl_acct;
 109        int                     sysctl_auto_assign_helper;
 110        bool                    auto_assign_helper_warned;
 111        int                     sysctl_tstamp;
 112        int                     sysctl_checksum;
 113
 114        struct ct_pcpu __percpu *pcpu_lists;
 115        struct ip_conntrack_stat __percpu *stat;
 116        struct nf_ct_event_notifier __rcu *nf_conntrack_event_cb;
 117        struct nf_exp_event_notifier __rcu *nf_expect_event_cb;
 118        struct nf_ip_net        nf_ct_proto;
 119#if defined(CONFIG_NF_CONNTRACK_LABELS)
 120        unsigned int            labels_used;
 121#endif
 122};
 123#endif
 124