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Release 4.12 include/net/inet_timewait_sock.h

Directory: include/net
 * INET         An implementation of the TCP/IP protocol suite for the LINUX
 *              operating system.  INET is implemented using the  BSD Socket
 *              interface as the means of communication with the user level.
 *              Definitions for a generic INET TIMEWAIT sock
 *              From code originally in net/tcp.h
 *              This program is free software; you can redistribute it and/or
 *              modify it under the terms of the GNU General Public License
 *              as published by the Free Software Foundation; either version
 *              2 of the License, or (at your option) any later version.


#include <linux/kmemcheck.h>
#include <linux/list.h>
#include <linux/timer.h>
#include <linux/types.h>
#include <linux/workqueue.h>

#include <net/inet_sock.h>
#include <net/sock.h>
#include <net/tcp_states.h>
#include <net/timewait_sock.h>

#include <linux/atomic.h>

struct inet_bind_bucket;

 * This is a TIME_WAIT sock. It works around the memory consumption
 * problems of sockets in such a state on heavily loaded servers, but
 * without violating the protocol specification.

struct inet_timewait_sock {
         * Now struct sock also uses sock_common, so please just
         * don't add nothing before this first member (__tw_common) --acme
struct sock_common	__tw_common;

#define tw_family		__tw_common.skc_family

#define tw_state		__tw_common.skc_state

#define tw_reuse		__tw_common.skc_reuse

#define tw_ipv6only		__tw_common.skc_ipv6only

#define tw_bound_dev_if		__tw_common.skc_bound_dev_if

#define tw_node			__tw_common.skc_nulls_node

#define tw_bind_node		__tw_common.skc_bind_node

#define tw_refcnt		__tw_common.skc_refcnt

#define tw_hash			__tw_common.skc_hash

#define tw_prot			__tw_common.skc_prot

#define tw_net			__tw_common.skc_net

#define tw_daddr        	__tw_common.skc_daddr

#define tw_v6_daddr		__tw_common.skc_v6_daddr

#define tw_rcv_saddr    	__tw_common.skc_rcv_saddr

#define tw_v6_rcv_saddr    	__tw_common.skc_v6_rcv_saddr

#define tw_dport		__tw_common.skc_dport

#define tw_num			__tw_common.skc_num

#define tw_cookie		__tw_common.skc_cookie

#define tw_dr			__tw_common.skc_tw_dr

int			tw_timeout;
volatile unsigned char	tw_substate;
unsigned char		tw_rcv_wscale;

	/* Socket demultiplex comparisons on incoming packets. */
	/* these three are in inet_sock */
__be16			tw_sport;
	/* And these are ours. */
unsigned int		tw_kill		: 1,
tw_transparent  : 1,
tw_flowlabel	: 20,
tw_pad		: 2,	/* 2 bits hole */
tw_tos		: 8;
struct timer_list	tw_timer;
struct inet_bind_bucket	*tw_tb;

#define tw_tclass tw_tos

static inline struct inet_timewait_sock *inet_twsk(const struct sock *sk) { return (struct inet_timewait_sock *)sk; }


Arnaldo Carvalho de Melo23100.00%1100.00%

void inet_twsk_free(struct inet_timewait_sock *tw); void inet_twsk_put(struct inet_timewait_sock *tw); void inet_twsk_bind_unhash(struct inet_timewait_sock *tw, struct inet_hashinfo *hashinfo); struct inet_timewait_sock *inet_twsk_alloc(const struct sock *sk, struct inet_timewait_death_row *dr, const int state); void __inet_twsk_hashdance(struct inet_timewait_sock *tw, struct sock *sk, struct inet_hashinfo *hashinfo); void __inet_twsk_schedule(struct inet_timewait_sock *tw, int timeo, bool rearm);
static inline void inet_twsk_schedule(struct inet_timewait_sock *tw, int timeo) { __inet_twsk_schedule(tw, timeo, false); }


Eric Dumazet2395.83%150.00%
Raanan Avargil14.17%150.00%

static inline void inet_twsk_reschedule(struct inet_timewait_sock *tw, int timeo) { __inet_twsk_schedule(tw, timeo, true); }


Eric Dumazet2395.83%150.00%
Raanan Avargil14.17%150.00%

void inet_twsk_deschedule_put(struct inet_timewait_sock *tw); void inet_twsk_purge(struct inet_hashinfo *hashinfo, int family);
static inline struct net *twsk_net(const struct inet_timewait_sock *twsk) { return read_pnet(&twsk->tw_net); }


Hideaki Yoshifuji / 吉藤英明2083.33%133.33%
Eric Dumazet28.33%133.33%
Eric W. Biedermann28.33%133.33%

static inline void twsk_net_set(struct inet_timewait_sock *twsk, struct net *net) { write_pnet(&twsk->tw_net, net); }


Hideaki Yoshifuji / 吉藤英明2281.48%133.33%
Eric W. Biedermann311.11%133.33%
Eric Dumazet27.41%133.33%

#endif /* _INET_TIMEWAIT_SOCK_ */

Overall Contributors

Arnaldo Carvalho de Melo19044.81%923.08%
Eric Dumazet14233.49%1846.15%
Hideaki Yoshifuji / 吉藤英明429.91%12.56%
Daniel Lezcano122.83%12.56%
Vegard Nossum122.83%12.56%
Eric W. Biedermann92.12%25.13%
Florent Fourcot61.42%12.56%
KOVACS Krisztian40.94%12.56%
Raanan Avargil20.47%12.56%
Randy Dunlap20.47%12.56%
Al Viro10.24%12.56%
Arun Sharma10.24%12.56%
Pavel Emelyanov10.24%12.56%
Directory: include/net
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