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_proto_net { 22 #ifdef CONFIG_SYSCTL 23 struct ctl_table_header *ctl_table_header; 24 struct ctl_table *ctl_table; 25 #endif 26 unsigned int users; 27 }; 28 29 struct nf_generic_net { 30 struct nf_proto_net pn; 31 unsigned int timeout; 32 }; 33 34 struct nf_tcp_net { 35 struct nf_proto_net pn; 36 unsigned int timeouts[TCP_CONNTRACK_TIMEOUT_MAX]; 37 unsigned int tcp_loose; 38 unsigned int tcp_be_liberal; 39 unsigned int tcp_max_retrans; 40 }; 41 42 enum udp_conntrack { 43 UDP_CT_UNREPLIED, 44 UDP_CT_REPLIED, 45 UDP_CT_MAX 46 }; 47 48 struct nf_udp_net { 49 struct nf_proto_net pn; 50 unsigned int timeouts[UDP_CT_MAX]; 51 }; 52 53 struct nf_icmp_net { 54 struct nf_proto_net pn; 55 unsigned int timeout; 56 }; 57 58 #ifdef CONFIG_NF_CT_PROTO_DCCP 59 struct nf_dccp_net { 60 struct nf_proto_net pn; 61 int dccp_loose; 62 unsigned int dccp_timeout[CT_DCCP_MAX + 1]; 63 }; 64 #endif 65 66 #ifdef CONFIG_NF_CT_PROTO_SCTP 67 struct nf_sctp_net { 68 struct nf_proto_net pn; 69 unsigned int timeouts[SCTP_CONNTRACK_MAX]; 70 }; 71 #endif 72 73 struct nf_ip_net { 74 struct nf_generic_net generic; 75 struct nf_tcp_net tcp; 76 struct nf_udp_net udp; 77 struct nf_icmp_net icmp; 78 struct nf_icmp_net icmpv6; 79 #ifdef CONFIG_NF_CT_PROTO_DCCP 80 struct nf_dccp_net dccp; 81 #endif 82 #ifdef CONFIG_NF_CT_PROTO_SCTP 83 struct nf_sctp_net sctp; 84 #endif 85 }; 86 87 struct ct_pcpu { 88 spinlock_t lock; 89 struct hlist_nulls_head unconfirmed; 90 struct hlist_nulls_head dying; 91 }; 92 93 struct netns_ct { 94 atomic_t count; 95 unsigned int expect_count; 96 #ifdef CONFIG_NF_CONNTRACK_EVENTS 97 struct delayed_work ecache_dwork; 98 bool ecache_dwork_pending; 99 #endif 100 bool auto_assign_helper_warned; 101 #ifdef CONFIG_SYSCTL 102 struct ctl_table_header *sysctl_header; 103 #endif 104 unsigned int sysctl_log_invalid; /* Log invalid packets */ 105 int sysctl_events; 106 int sysctl_acct; 107 int sysctl_auto_assign_helper; 108 int sysctl_tstamp; 109 int sysctl_checksum; 110 111 struct ct_pcpu __percpu *pcpu_lists; 112 struct ip_conntrack_stat __percpu *stat; 113 struct nf_ct_event_notifier __rcu *nf_conntrack_event_cb; 114 struct nf_exp_event_notifier __rcu *nf_expect_event_cb; 115 struct nf_ip_net nf_ct_proto; 116 #if defined(CONFIG_NF_CONNTRACK_LABELS) 117 unsigned int labels_used; 118 #endif 119 }; 120 #endif 121