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 unsigned int tcp_loose; 28 unsigned int tcp_be_liberal; 29 unsigned int tcp_max_retrans; 30 }; 31 32 enum udp_conntrack { 33 UDP_CT_UNREPLIED, 34 UDP_CT_REPLIED, 35 UDP_CT_MAX 36 }; 37 38 struct nf_udp_net { 39 unsigned int timeouts[UDP_CT_MAX]; 40 }; 41 42 struct nf_icmp_net { 43 unsigned int timeout; 44 }; 45 46 #ifdef CONFIG_NF_CT_PROTO_DCCP 47 struct nf_dccp_net { 48 int dccp_loose; 49 unsigned int dccp_timeout[CT_DCCP_MAX + 1]; 50 }; 51 #endif 52 53 #ifdef CONFIG_NF_CT_PROTO_SCTP 54 struct nf_sctp_net { 55 unsigned int timeouts[SCTP_CONNTRACK_MAX]; 56 }; 57 #endif 58 59 #ifdef CONFIG_NF_CT_PROTO_GRE 60 enum gre_conntrack { 61 GRE_CT_UNREPLIED, 62 GRE_CT_REPLIED, 63 GRE_CT_MAX 64 }; 65 66 struct nf_gre_net { 67 struct list_head keymap_list; 68 unsigned int timeouts[GRE_CT_MAX]; 69 }; 70 #endif 71 72 struct nf_ip_net { 73 struct nf_generic_net generic; 74 struct nf_tcp_net tcp; 75 struct nf_udp_net udp; 76 struct nf_icmp_net icmp; 77 struct nf_icmp_net icmpv6; 78 #ifdef CONFIG_NF_CT_PROTO_DCCP 79 struct nf_dccp_net dccp; 80 #endif 81 #ifdef CONFIG_NF_CT_PROTO_SCTP 82 struct nf_sctp_net sctp; 83 #endif 84 #ifdef CONFIG_NF_CT_PROTO_GRE 85 struct nf_gre_net gre; 86 #endif 87 }; 88 89 struct ct_pcpu { 90 spinlock_t lock; 91 struct hlist_nulls_head unconfirmed; 92 struct hlist_nulls_head dying; 93 }; 94 95 struct netns_ct { 96 atomic_t count; 97 unsigned int expect_count; 98 #ifdef CONFIG_NF_CONNTRACK_EVENTS 99 struct delayed_work ecache_dwork; 100 bool ecache_dwork_pending; 101 #endif 102 bool auto_assign_helper_warned; 103 #ifdef CONFIG_SYSCTL 104 struct ctl_table_header *sysctl_header; 105 #endif 106 unsigned int sysctl_log_invalid; /* Log invalid packets */ 107 int sysctl_events; 108 int sysctl_acct; 109 int sysctl_auto_assign_helper; 110 int sysctl_tstamp; 111 int sysctl_checksum; 112 113 struct ct_pcpu __percpu *pcpu_lists; 114 struct ip_conntrack_stat __percpu *stat; 115 struct nf_ct_event_notifier __rcu *nf_conntrack_event_cb; 116 struct nf_exp_event_notifier __rcu *nf_expect_event_cb; 117 struct nf_ip_net nf_ct_proto; 118 #if defined(CONFIG_NF_CONNTRACK_LABELS) 119 unsigned int labels_used; 120 #endif 121 }; 122 #endif 123