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
  17 struct ctl_table_header;
  18 struct nf_conntrack_ecache;
  19
  20 struct 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
  28 struct nf_generic_net {
  29         struct nf_proto_net pn;
  30         unsigned int timeout;
  31 };
  32
  33 struct 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
  41 enum udp_conntrack {
  42         UDP_CT_UNREPLIED,
  43         UDP_CT_REPLIED,
  44         UDP_CT_MAX
  45 };
  46
  47 struct nf_udp_net {
  48         struct nf_proto_net pn;
  49         unsigned int timeouts[UDP_CT_MAX];
  50 };
  51
  52 struct nf_icmp_net {
  53         struct nf_proto_net pn;
  54         unsigned int timeout;
  55 };
  56
  57 #ifdef CONFIG_NF_CT_PROTO_DCCP
  58 struct 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
  66 struct nf_sctp_net {
  67         struct nf_proto_net pn;
  68         unsigned int timeouts[SCTP_CONNTRACK_MAX];
  69 };
  70 #endif
  71
  72 struct 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
  86 struct ct_pcpu {
  87         spinlock_t              lock;
  88         struct hlist_nulls_head unconfirmed;
  89         struct hlist_nulls_head dying;
  90 };
  91
  92 struct 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