tcp_metrics.c File Reference

#include <linux/rcupdate.h>
#include <linux/spinlock.h>
#include <linux/jiffies.h>
#include <linux/module.h>
#include <linux/cache.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/tcp.h>
#include <linux/hash.h>
#include <linux/tcp_metrics.h>
#include <linux/vmalloc.h>
#include <net/inet_connection_sock.h>
#include <net/net_namespace.h>
#include <net/request_sock.h>
#include <net/inetpeer.h>
#include <net/sock.h>
#include <net/ipv6.h>
#include <net/dst.h>
#include <net/tcp.h>
#include <net/genetlink.h>

Go to the source code of this file.

Data Structures
struct	tcp_fastopen_metrics
struct	tcp_metrics_block
struct	tcpm_hash_bucket

Macros
#define	TCP_METRICS_TIMEOUT   (60 * 60 * HZ)
#define	TCP_METRICS_RECLAIM_DEPTH   5
#define	TCP_METRICS_RECLAIM_PTR   (struct tcp_metrics_block *) 0x1UL
#define	deref_locked_genl(p)
#define	deref_genl(p)   rcu_dereference_protected(p, lockdep_genl_is_held())

Functions
void	tcp_update_metrics (struct sock *sk)
void	tcp_init_metrics (struct sock *sk)
bool	tcp_peer_is_proven (struct request_sock *req, struct dst_entry *dst, bool paws_check)
	EXPORT_SYMBOL_GPL (tcp_peer_is_proven)
void	tcp_fetch_timewait_stamp (struct sock *sk, struct dst_entry *dst)
	EXPORT_SYMBOL_GPL (tcp_fetch_timewait_stamp)
bool	tcp_remember_stamp (struct sock *sk)
bool	tcp_tw_remember_stamp (struct inet_timewait_sock *tw)
void	tcp_fastopen_cache_get (struct sock *sk, u16 *mss, struct tcp_fastopen_cookie *cookie, int *syn_loss, unsigned long *last_syn_loss)
void	tcp_fastopen_cache_set (struct sock *sk, u16 mss, struct tcp_fastopen_cookie *cookie, bool syn_lost)
	__setup ("tcpmhash_entries=", set_tcpmhash_entries)
void __init	tcp_metrics_init (void)

Variables
int sysctl_tcp_nometrics_save	__read_mostly

Macro Definition Documentation

#define deref_genl

(

p

)

rcu_dereference_protected(p, lockdep_genl_is_held())

Definition at line 929 of file tcp_metrics.c.

#define deref_locked_genl

(

p

)

Value:

rcu_dereference_protected(p, lockdep_genl_is_held() && \
                     lockdep_is_held(&tcp_metrics_lock))

Definition at line 925 of file tcp_metrics.c.

#define TCP_METRICS_RECLAIM_DEPTH   5

Definition at line 177 of file tcp_metrics.c.

#define TCP_METRICS_RECLAIM_PTR   (struct tcp_metrics_block *) 0x1UL

Definition at line 178 of file tcp_metrics.c.

#define TCP_METRICS_TIMEOUT   (60 * 60 * HZ)

Definition at line 169 of file tcp_metrics.c.

Function Documentation

__setup

(

)

EXPORT_SYMBOL_GPL

(

tcp_peer_is_proven

)

EXPORT_SYMBOL_GPL

(

tcp_fetch_timewait_stamp

)

void tcp_fastopen_cache_get	(	struct sock *	sk,
		u16 *	mss,
		struct tcp_fastopen_cookie *	cookie,
		int *	syn_loss,
		unsigned long *	last_syn_loss
	)

Definition at line 638 of file tcp_metrics.c.

void tcp_fastopen_cache_set	(	struct sock *	sk,
		u16	mss,
		struct tcp_fastopen_cookie *	cookie,
		bool	syn_lost
	)

Definition at line 662 of file tcp_metrics.c.

void tcp_fetch_timewait_stamp	(	struct sock *	sk,
		struct dst_entry *	dst
	)

Definition at line 562 of file tcp_metrics.c.

void tcp_init_metrics

(

struct sock *

sk

)

Definition at line 438 of file tcp_metrics.c.

void __init tcp_metrics_init

(

void

)

Definition at line 1072 of file tcp_metrics.c.

bool tcp_peer_is_proven	(	struct request_sock *	req,
		struct dst_entry *	dst,
		bool	paws_check
	)

Definition at line 533 of file tcp_metrics.c.

bool tcp_remember_stamp

(

struct sock *

sk

)

Definition at line 585 of file tcp_metrics.c.

bool tcp_tw_remember_stamp

(

struct inet_timewait_sock *

tw

)

Definition at line 611 of file tcp_metrics.c.

void tcp_update_metrics

(

struct sock *

sk

)

Definition at line 317 of file tcp_metrics.c.

Variable Documentation

int sysctl_tcp_nometrics_save __read_mostly

Definition at line 23 of file tcp_metrics.c.