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 #include <linux/seqlock.h>
  10
  11 struct ctl_table_header;
  12 struct nf_conntrack_ecache;
  13
  14 struct nf_proto_net {
  15 #ifdef CONFIG_SYSCTL
  16         struct ctl_table_header *ctl_table_header;
  17         struct ctl_table        *ctl_table;
  18 #endif
  19         unsigned int            users;
  20 };
  21
  22 struct nf_generic_net {
  23         struct nf_proto_net pn;
  24         unsigned int timeout;
  25 };
  26
  27 struct nf_tcp_net {
  28         struct nf_proto_net pn;
  29         unsigned int timeouts[TCP_CONNTRACK_TIMEOUT_MAX];
  30         unsigned int tcp_loose;
  31         unsigned int tcp_be_liberal;
  32         unsigned int tcp_max_retrans;
  33 };
  34
  35 enum udp_conntrack {
  36         UDP_CT_UNREPLIED,
  37         UDP_CT_REPLIED,
  38         UDP_CT_MAX
  39 };
  40
  41 struct nf_udp_net {
  42         struct nf_proto_net pn;
  43         unsigned int timeouts[UDP_CT_MAX];
  44 };
  45
  46 struct nf_icmp_net {
  47         struct nf_proto_net pn;
  48         unsigned int timeout;
  49 };
  50
  51 struct nf_ip_net {
  52         struct nf_generic_net   generic;
  53         struct nf_tcp_net       tcp;
  54         struct nf_udp_net       udp;
  55         struct nf_icmp_net      icmp;
  56         struct nf_icmp_net      icmpv6;
  57 };
  58
  59 struct ct_pcpu {
  60         spinlock_t              lock;
  61         struct hlist_nulls_head unconfirmed;
  62         struct hlist_nulls_head dying;
  63 };
  64
  65 struct netns_ct {
  66         atomic_t                count;
  67         unsigned int            expect_count;
  68 #ifdef CONFIG_NF_CONNTRACK_EVENTS
  69         struct delayed_work ecache_dwork;
  70         bool ecache_dwork_pending;
  71 #endif
  72 #ifdef CONFIG_SYSCTL
  73         struct ctl_table_header *sysctl_header;
  74         struct ctl_table_header *acct_sysctl_header;
  75         struct ctl_table_header *tstamp_sysctl_header;
  76         struct ctl_table_header *event_sysctl_header;
  77         struct ctl_table_header *helper_sysctl_header;
  78 #endif
  79         unsigned int            sysctl_log_invalid; /* Log invalid packets */
  80         int                     sysctl_events;
  81         int                     sysctl_acct;
  82         int                     sysctl_auto_assign_helper;
  83         bool                    auto_assign_helper_warned;
  84         int                     sysctl_tstamp;
  85         int                     sysctl_checksum;
  86
  87         struct ct_pcpu __percpu *pcpu_lists;
  88         struct ip_conntrack_stat __percpu *stat;
  89         struct nf_ct_event_notifier __rcu *nf_conntrack_event_cb;
  90         struct nf_exp_event_notifier __rcu *nf_expect_event_cb;
  91         struct nf_ip_net        nf_ct_proto;
  92 #if defined(CONFIG_NF_CONNTRACK_LABELS)
  93         unsigned int            labels_used;
  94         u8                      label_words;
  95 #endif
  96 };
  97 #endif