cregit-Linux how code gets into the kernel

Release 4.7 include/net/netns/conntrack.h

#ifndef __NETNS_CONNTRACK_H

#define __NETNS_CONNTRACK_H

#include <linux/list.h>
#include <linux/list_nulls.h>
#include <linux/atomic.h>
#include <linux/workqueue.h>
#include <linux/netfilter/nf_conntrack_tcp.h>
#include <linux/seqlock.h>

struct ctl_table_header;
struct nf_conntrack_ecache;


struct nf_proto_net {
#ifdef CONFIG_SYSCTL
	
struct ctl_table_header *ctl_table_header;
	
struct ctl_table        *ctl_table;
#ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT
	
struct ctl_table_header *ctl_compat_header;
	
struct ctl_table        *ctl_compat_table;
#endif
#endif
	
unsigned int		users;
};


struct nf_generic_net {
	
struct nf_proto_net pn;
	
unsigned int timeout;
};


struct nf_tcp_net {
	
struct nf_proto_net pn;
	
unsigned int timeouts[TCP_CONNTRACK_TIMEOUT_MAX];
	
unsigned int tcp_loose;
	
unsigned int tcp_be_liberal;
	
unsigned int tcp_max_retrans;
};


enum udp_conntrack {
	
UDP_CT_UNREPLIED,
	
UDP_CT_REPLIED,
	
UDP_CT_MAX
};


struct nf_udp_net {
	
struct nf_proto_net pn;
	
unsigned int timeouts[UDP_CT_MAX];
};


struct nf_icmp_net {
	
struct nf_proto_net pn;
	
unsigned int timeout;
};


struct nf_ip_net {
	
struct nf_generic_net   generic;
	
struct nf_tcp_net	tcp;
	
struct nf_udp_net	udp;
	
struct nf_icmp_net	icmp;
	
struct nf_icmp_net	icmpv6;
#if defined(CONFIG_SYSCTL) && defined(CONFIG_NF_CONNTRACK_PROC_COMPAT)
	
struct ctl_table_header *ctl_table_header;
	
struct ctl_table	*ctl_table;
#endif
};


struct ct_pcpu {
	
spinlock_t		lock;
	
struct hlist_nulls_head unconfirmed;
	
struct hlist_nulls_head dying;
};


struct netns_ct {
	
atomic_t		count;
	
unsigned int		expect_count;
#ifdef CONFIG_NF_CONNTRACK_EVENTS
	
struct delayed_work ecache_dwork;
	
bool ecache_dwork_pending;
#endif
#ifdef CONFIG_SYSCTL
	
struct ctl_table_header	*sysctl_header;
	
struct ctl_table_header	*acct_sysctl_header;
	
struct ctl_table_header	*tstamp_sysctl_header;
	
struct ctl_table_header	*event_sysctl_header;
	
struct ctl_table_header	*helper_sysctl_header;
#endif
	
unsigned int		sysctl_log_invalid; /* Log invalid packets */
	
int			sysctl_events;
	
int			sysctl_acct;
	
int			sysctl_auto_assign_helper;
	
bool			auto_assign_helper_warned;
	
int			sysctl_tstamp;
	
int			sysctl_checksum;

	
struct ct_pcpu __percpu *pcpu_lists;
	
struct ip_conntrack_stat __percpu *stat;
	
struct nf_ct_event_notifier __rcu *nf_conntrack_event_cb;
	
struct nf_exp_event_notifier __rcu *nf_expect_event_cb;
	
struct nf_ip_net	nf_ct_proto;
#if defined(CONFIG_NF_CONNTRACK_LABELS)
	
unsigned int		labels_used;
	
u8			label_words;
#endif
};
#endif

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