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/netfilter/nf_conntrack_tcp.h>
   8
   9 struct ctl_table_header;
  10 struct nf_conntrack_ecache;
  11
  12 struct nf_proto_net {
  13 #ifdef CONFIG_SYSCTL
  14         struct ctl_table_header *ctl_table_header;
  15         struct ctl_table        *ctl_table;
  16 #ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT
  17         struct ctl_table_header *ctl_compat_header;
  18         struct ctl_table        *ctl_compat_table;
  19 #endif
  20 #endif
  21         unsigned int            users;
  22 };
  23
  24 struct nf_generic_net {
  25         struct nf_proto_net pn;
  26         unsigned int timeout;
  27 };
  28
  29 struct nf_tcp_net {
  30         struct nf_proto_net pn;
  31         unsigned int timeouts[TCP_CONNTRACK_TIMEOUT_MAX];
  32         unsigned int tcp_loose;
  33         unsigned int tcp_be_liberal;
  34         unsigned int tcp_max_retrans;
  35 };
  36
  37 enum udp_conntrack {
  38         UDP_CT_UNREPLIED,
  39         UDP_CT_REPLIED,
  40         UDP_CT_MAX
  41 };
  42
  43 struct nf_udp_net {
  44         struct nf_proto_net pn;
  45         unsigned int timeouts[UDP_CT_MAX];
  46 };
  47
  48 struct nf_icmp_net {
  49         struct nf_proto_net pn;
  50         unsigned int timeout;
  51 };
  52
  53 struct nf_ip_net {
  54         struct nf_generic_net   generic;
  55         struct nf_tcp_net       tcp;
  56         struct nf_udp_net       udp;
  57         struct nf_icmp_net      icmp;
  58         struct nf_icmp_net      icmpv6;
  59 #if defined(CONFIG_SYSCTL) && defined(CONFIG_NF_CONNTRACK_PROC_COMPAT)
  60         struct ctl_table_header *ctl_table_header;
  61         struct ctl_table        *ctl_table;
  62 #endif
  63 };
  64
  65 struct ct_pcpu {
  66         spinlock_t              lock;
  67         struct hlist_nulls_head unconfirmed;
  68         struct hlist_nulls_head dying;
  69         struct hlist_nulls_head tmpl;
  70 };
  71
  72 struct netns_ct {
  73         atomic_t                count;
  74         unsigned int            expect_count;
  75 #ifdef CONFIG_SYSCTL
  76         struct ctl_table_header *sysctl_header;
  77         struct ctl_table_header *acct_sysctl_header;
  78         struct ctl_table_header *tstamp_sysctl_header;
  79         struct ctl_table_header *event_sysctl_header;
  80         struct ctl_table_header *helper_sysctl_header;
  81 #endif
  82         char                    *slabname;
  83         unsigned int            sysctl_log_invalid; /* Log invalid packets */
  84         unsigned int            sysctl_events_retry_timeout;
  85         int                     sysctl_events;
  86         int                     sysctl_acct;
  87         int                     sysctl_auto_assign_helper;
  88         bool                    auto_assign_helper_warned;
  89         int                     sysctl_tstamp;
  90         int                     sysctl_checksum;
  91
  92         unsigned int            htable_size;
  93         struct kmem_cache       *nf_conntrack_cachep;
  94         struct hlist_nulls_head *hash;
  95         struct hlist_head       *expect_hash;
  96         struct ct_pcpu __percpu *pcpu_lists;
  97         struct ip_conntrack_stat __percpu *stat;
  98         struct nf_ct_event_notifier __rcu *nf_conntrack_event_cb;
  99         struct nf_exp_event_notifier __rcu *nf_expect_event_cb;
 100         struct nf_ip_net        nf_ct_proto;
 101 #if defined(CONFIG_NF_CONNTRACK_LABELS)
 102         unsigned int            labels_used;
 103         u8                      label_words;
 104 #endif
 105 #ifdef CONFIG_NF_NAT_NEEDED
 106         struct hlist_head       *nat_bysource;
 107         unsigned int            nat_htable_size;
 108 #endif
 109 };
 110 #endif