1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
|
/*
* Retransmits, for libreswan
*
* Copyright (C) 2017 Andrew Cagney
*
* 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. See <https://www.gnu.org/licenses/gpl2.txt>.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
#ifndef RETRANSMIT_H
#define RETRANSMIT_H
struct state;
/*
* Treat as opaque!
*/
typedef struct {
deltatime_t delay;
deltatime_t timeout;
monotime_t start;
deltatime_t delays;
unsigned long nr_retransmits;
unsigned long nr_duplicate_replies;
unsigned long limit;
so_serial_t who_for;
} retransmit_t;
unsigned long retransmit_count(struct state *st);
bool count_duplicate(struct state *st, unsigned long limit);
void start_retransmits(struct state *st);
void clear_retransmits(struct state *st);
enum retransmit_action {
RETRANSMIT_TIMEOUT = 1,
RETRANSMIT_NO,
RETRANSMIT_YES,
/* due to impair */
TIMEOUT_ON_RETRANSMIT,
};
enum retransmit_action retransmit(struct state *st);
size_t lswlog_retransmit_prefix(struct jambuf *buf, struct state *st);
#endif
|
