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 #ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT
  19         struct ctl_table_header *ctl_compat_header;
  20         struct ctl_table        *ctl_compat_table;
  21 #endif
  22 #endif
  23         unsigned int            users;
  24 };
  25
  26 struct nf_generic_net {
  27         struct nf_proto_net pn;
  28         unsigned int timeout;
  29 };
  30
  31 struct nf_tcp_net {
  32         struct nf_proto_net pn;
  33         unsigned int timeouts[TCP_CONNTRACK_TIMEOUT_MAX];
  34         unsigned int tcp_loose;
  35         unsigned int tcp_be_liberal;
  36         unsigned int tcp_max_retrans;
  37 };
  38
  39 enum udp_conntrack {
  40         UDP_CT_UNREPLIED,
  41         UDP_CT_REPLIED,
  42         UDP_CT_MAX
  43 };
  44
  45 struct nf_udp_net {
  46         struct nf_proto_net pn;
  47         unsigned int timeouts[UDP_CT_MAX];
  48 };
  49
  50 struct nf_icmp_net {
  51         struct nf_proto_net pn;
  52         unsigned int timeout;
  53 };
  54
  55 struct nf_ip_net {
  56         struct nf_generic_net   generic;
  57         struct nf_tcp_net       tcp;
  58         struct nf_udp_net       udp;
  59         struct nf_icmp_net      icmp;
  60         struct nf_icmp_net      icmpv6;
  61 #if defined(CONFIG_SYSCTL) && defined(CONFIG_NF_CONNTRACK_PROC_COMPAT)
  62         struct ctl_table_header *ctl_table_header;
  63         struct ctl_table        *ctl_table;
  64 #endif
  65 };
  66
  67 struct ct_pcpu {
  68         spinlock_t              lock;
  69         struct hlist_nulls_head unconfirmed;
  70         struct hlist_nulls_head dying;
  71         struct hlist_nulls_head tmpl;
  72 };
  73
  74 struct netns_ct {
  75         atomic_t                count;
  76         unsigned int            expect_count;
  77 #ifdef CONFIG_NF_CONNTRACK_EVENTS
  78         struct delayed_work ecache_dwork;
  79         bool ecache_dwork_pending;
  80 #endif
  81 #ifdef CONFIG_SYSCTL
  82         struct ctl_table_header *sysctl_header;
  83         struct ctl_table_header *acct_sysctl_header;
  84         struct ctl_table_header *tstamp_sysctl_header;
  85         struct ctl_table_header *event_sysctl_header;
  86         struct ctl_table_header *helper_sysctl_header;
  87 #endif
  88         char                    *slabname;
  89         unsigned int            sysctl_log_invalid; /* Log invalid packets */
  90         int                     sysctl_events;
  91         int                     sysctl_acct;
  92         int                     sysctl_auto_assign_helper;
  93         bool                    auto_assign_helper_warned;
  94         int                     sysctl_tstamp;
  95         int                     sysctl_checksum;
  96
  97         unsigned int            htable_size;
  98         seqcount_t              generation;
  99         struct kmem_cache       *nf_conntrack_cachep;
 100         struct hlist_nulls_head *hash;
 101         struct hlist_head       *expect_hash;
 102         struct ct_pcpu __percpu *pcpu_lists;
 103         struct ip_conntrack_stat __percpu *stat;
 104         struct nf_ct_event_notifier __rcu *nf_conntrack_event_cb;
 105         struct nf_exp_event_notifier __rcu *nf_expect_event_cb;
 106         struct nf_ip_net        nf_ct_proto;
 107 #if defined(CONFIG_NF_CONNTRACK_LABELS)
 108         unsigned int            labels_used;
 109         u8                      label_words;
 110 #endif
 111 #ifdef CONFIG_NF_NAT_NEEDED
 112         struct hlist_head       *nat_bysource;
 113         unsigned int            nat_htable_size;
 114 #endif
 115 };
 116 #endif