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11#ifndef _INET_TIMEWAIT_SOCK_
12#define _INET_TIMEWAIT_SOCK_
13
14#include <linux/list.h>
15#include <linux/timer.h>
16#include <linux/types.h>
17#include <linux/workqueue.h>
18
19#include <net/inet_sock.h>
20#include <net/sock.h>
21#include <net/tcp_states.h>
22#include <net/timewait_sock.h>
23
24#include <linux/atomic.h>
25
26struct inet_bind_bucket;
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31
32
33struct inet_timewait_sock {
34
35
36
37
38 struct sock_common __tw_common;
39#define tw_family __tw_common.skc_family
40#define tw_state __tw_common.skc_state
41#define tw_reuse __tw_common.skc_reuse
42#define tw_reuseport __tw_common.skc_reuseport
43#define tw_ipv6only __tw_common.skc_ipv6only
44#define tw_bound_dev_if __tw_common.skc_bound_dev_if
45#define tw_node __tw_common.skc_nulls_node
46#define tw_bind_node __tw_common.skc_bind_node
47#define tw_refcnt __tw_common.skc_refcnt
48#define tw_hash __tw_common.skc_hash
49#define tw_prot __tw_common.skc_prot
50#define tw_net __tw_common.skc_net
51#define tw_daddr __tw_common.skc_daddr
52#define tw_v6_daddr __tw_common.skc_v6_daddr
53#define tw_rcv_saddr __tw_common.skc_rcv_saddr
54#define tw_v6_rcv_saddr __tw_common.skc_v6_rcv_saddr
55#define tw_dport __tw_common.skc_dport
56#define tw_num __tw_common.skc_num
57#define tw_cookie __tw_common.skc_cookie
58#define tw_dr __tw_common.skc_tw_dr
59
60 __u32 tw_mark;
61 volatile unsigned char tw_substate;
62 unsigned char tw_rcv_wscale;
63
64
65
66 __be16 tw_sport;
67
68 unsigned int tw_kill : 1,
69 tw_transparent : 1,
70 tw_flowlabel : 20,
71 tw_pad : 2,
72 tw_tos : 8;
73 struct timer_list tw_timer;
74 struct inet_bind_bucket *tw_tb;
75};
76#define tw_tclass tw_tos
77
78static inline struct inet_timewait_sock *inet_twsk(const struct sock *sk)
79{
80 return (struct inet_timewait_sock *)sk;
81}
82
83void inet_twsk_free(struct inet_timewait_sock *tw);
84void inet_twsk_put(struct inet_timewait_sock *tw);
85
86void inet_twsk_bind_unhash(struct inet_timewait_sock *tw,
87 struct inet_hashinfo *hashinfo);
88
89struct inet_timewait_sock *inet_twsk_alloc(const struct sock *sk,
90 struct inet_timewait_death_row *dr,
91 const int state);
92
93void inet_twsk_hashdance(struct inet_timewait_sock *tw, struct sock *sk,
94 struct inet_hashinfo *hashinfo);
95
96void __inet_twsk_schedule(struct inet_timewait_sock *tw, int timeo,
97 bool rearm);
98
99static inline void inet_twsk_schedule(struct inet_timewait_sock *tw, int timeo)
100{
101 __inet_twsk_schedule(tw, timeo, false);
102}
103
104static inline void inet_twsk_reschedule(struct inet_timewait_sock *tw, int timeo)
105{
106 __inet_twsk_schedule(tw, timeo, true);
107}
108
109void inet_twsk_deschedule_put(struct inet_timewait_sock *tw);
110
111void inet_twsk_purge(struct inet_hashinfo *hashinfo, int family);
112
113static inline
114struct net *twsk_net(const struct inet_timewait_sock *twsk)
115{
116 return read_pnet(&twsk->tw_net);
117}
118
119static inline
120void twsk_net_set(struct inet_timewait_sock *twsk, struct net *net)
121{
122 write_pnet(&twsk->tw_net, net);
123}
124#endif
125