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 #include <linux/seqlock.h>
   9
  10 struct ctl_table_header;
  11 struct nf_conntrack_ecache;
  12
  13 struct nf_proto_net {
  14 #ifdef CONFIG_SYSCTL
  15         struct ctl_table_header *ctl_table_header;
  16         struct ctl_table        *ctl_table;
  17 #ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT
  18         struct ctl_table_header *ctl_compat_header;
  19         struct ctl_table        *ctl_compat_table;
  20 #endif
  21 #endif
  22         unsigned int            users;
  23 };
  24
  25 struct nf_generic_net {
  26         struct nf_proto_net pn;
  27         unsigned int timeout;
  28 };
  29
  30 struct nf_tcp_net {
  31         struct nf_proto_net pn;
  32         unsigned int timeouts[TCP_CONNTRACK_TIMEOUT_MAX];
  33         unsigned int tcp_loose;
  34         unsigned int tcp_be_liberal;
  35         unsigned int tcp_max_retrans;
  36 };
  37
  38 enum udp_conntrack {
  39         UDP_CT_UNREPLIED,
  40         UDP_CT_REPLIED,
  41         UDP_CT_MAX
  42 };
  43
  44 struct nf_udp_net {
  45         struct nf_proto_net pn;
  46         unsigned int timeouts[UDP_CT_MAX];
  47 };
  48
  49 struct nf_icmp_net {
  50         struct nf_proto_net pn;
  51         unsigned int timeout;
  52 };
  53
  54 struct nf_ip_net {
  55         struct nf_generic_net   generic;
  56         struct nf_tcp_net       tcp;
  57         struct nf_udp_net       udp;
  58         struct nf_icmp_net      icmp;
  59         struct nf_icmp_net      icmpv6;
  60 #if defined(CONFIG_SYSCTL) && defined(CONFIG_NF_CONNTRACK_PROC_COMPAT)
  61         struct ctl_table_header *ctl_table_header;
  62         struct ctl_table        *ctl_table;
  63 #endif
  64 };
  65
  66 struct ct_pcpu {
  67         spinlock_t              lock;
  68         struct hlist_nulls_head unconfirmed;
  69         struct hlist_nulls_head dying;
  70         struct hlist_nulls_head tmpl;
  71 };
  72
  73 struct netns_ct {
  74         atomic_t                count;
  75         unsigned int            expect_count;
  76 #ifdef CONFIG_SYSCTL
  77         struct ctl_table_header *sysctl_header;
  78         struct ctl_table_header *acct_sysctl_header;
  79         struct ctl_table_header *tstamp_sysctl_header;
  80         struct ctl_table_header *event_sysctl_header;
  81         struct ctl_table_header *helper_sysctl_header;
  82 #endif
  83         char                    *slabname;
  84         unsigned int            sysctl_log_invalid; /* Log invalid packets */
  85         unsigned int            sysctl_events_retry_timeout;
  86         int                     sysctl_events;
  87         int                     sysctl_acct;
  88         int                     sysctl_auto_assign_helper;
  89         bool                    auto_assign_helper_warned;
  90         int                     sysctl_tstamp;
  91         int                     sysctl_checksum;
  92
  93         unsigned int            htable_size;
  94         seqcount_t              generation;
  95         struct kmem_cache       *nf_conntrack_cachep;
  96         struct hlist_nulls_head *hash;
  97         struct hlist_head       *expect_hash;
  98         struct ct_pcpu __percpu *pcpu_lists;
  99         struct ip_conntrack_stat __percpu *stat;
 100         struct nf_ct_event_notifier __rcu *nf_conntrack_event_cb;
 101         struct nf_exp_event_notifier __rcu *nf_expect_event_cb;
 102         struct nf_ip_net        nf_ct_proto;
 103 #if defined(CONFIG_NF_CONNTRACK_LABELS)
 104         unsigned int            labels_used;
 105         u8                      label_words;
 106 #endif
 107 #ifdef CONFIG_NF_NAT_NEEDED
 108         struct hlist_head       *nat_bysource;
 109         unsigned int            nat_htable_size;
 110 #endif
 111 };
 112 #endif