include/net/netns/conntrack.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef __NETNS_CONNTRACK_H
   3 #define __NETNS_CONNTRACK_H
   4
   5 #include <linux/list.h>
   6 #include <linux/list_nulls.h>
   7 #include <linux/atomic.h>
   8 #include <linux/workqueue.h>
   9 #include <linux/netfilter/nf_conntrack_tcp.h>
  10 #ifdef CONFIG_NF_CT_PROTO_DCCP
  11 #include <linux/netfilter/nf_conntrack_dccp.h>
  12 #endif
  13 #ifdef CONFIG_NF_CT_PROTO_SCTP
  14 #include <linux/netfilter/nf_conntrack_sctp.h>
  15 #endif
  16 #include <linux/seqlock.h>
  17
  18 struct ctl_table_header;
  19 struct nf_conntrack_ecache;
  20
  21 struct nf_generic_net {
  22         unsigned int timeout;
  23 };
  24
  25 struct nf_tcp_net {
  26         unsigned int timeouts[TCP_CONNTRACK_TIMEOUT_MAX];
  27         u8 tcp_loose;
  28         u8 tcp_be_liberal;
  29         u8 tcp_max_retrans;
  30         u8 tcp_ignore_invalid_rst;
  31 #if IS_ENABLED(CONFIG_NF_FLOW_TABLE)
  32         unsigned int offload_timeout;
  33 #endif
  34 };
  35
  36 enum udp_conntrack {
  37         UDP_CT_UNREPLIED,
  38         UDP_CT_REPLIED,
  39         UDP_CT_MAX
  40 };
  41
  42 struct nf_udp_net {
  43         unsigned int timeouts[UDP_CT_MAX];
  44 #if IS_ENABLED(CONFIG_NF_FLOW_TABLE)
  45         unsigned int offload_timeout;
  46 #endif
  47 };
  48
  49 struct nf_icmp_net {
  50         unsigned int timeout;
  51 };
  52
  53 #ifdef CONFIG_NF_CT_PROTO_DCCP
  54 struct nf_dccp_net {
  55         u8 dccp_loose;
  56         unsigned int dccp_timeout[CT_DCCP_MAX + 1];
  57 };
  58 #endif
  59
  60 #ifdef CONFIG_NF_CT_PROTO_SCTP
  61 struct nf_sctp_net {
  62         unsigned int timeouts[SCTP_CONNTRACK_MAX];
  63 };
  64 #endif
  65
  66 #ifdef CONFIG_NF_CT_PROTO_GRE
  67 enum gre_conntrack {
  68         GRE_CT_UNREPLIED,
  69         GRE_CT_REPLIED,
  70         GRE_CT_MAX
  71 };
  72
  73 struct nf_gre_net {
  74         struct list_head        keymap_list;
  75         unsigned int            timeouts[GRE_CT_MAX];
  76 };
  77 #endif
  78
  79 struct nf_ip_net {
  80         struct nf_generic_net   generic;
  81         struct nf_tcp_net       tcp;
  82         struct nf_udp_net       udp;
  83         struct nf_icmp_net      icmp;
  84         struct nf_icmp_net      icmpv6;
  85 #ifdef CONFIG_NF_CT_PROTO_DCCP
  86         struct nf_dccp_net      dccp;
  87 #endif
  88 #ifdef CONFIG_NF_CT_PROTO_SCTP
  89         struct nf_sctp_net      sctp;
  90 #endif
  91 #ifdef CONFIG_NF_CT_PROTO_GRE
  92         struct nf_gre_net       gre;
  93 #endif
  94 };
  95
  96 struct netns_ct {
  97 #ifdef CONFIG_NF_CONNTRACK_EVENTS
  98         bool ecache_dwork_pending;
  99 #endif
 100         u8                      sysctl_log_invalid; /* Log invalid packets */
 101         u8                      sysctl_events;
 102         u8                      sysctl_acct;
 103         u8                      sysctl_tstamp;
 104         u8                      sysctl_checksum;
 105
 106         struct ip_conntrack_stat __percpu *stat;
 107         struct nf_ct_event_notifier __rcu *nf_conntrack_event_cb;
 108         struct nf_ip_net        nf_ct_proto;
 109 #if defined(CONFIG_NF_CONNTRACK_LABELS)
 110         atomic_t                labels_used;
 111 #endif
 112 };
 113 #endif