blob: 30b44d1c06625224ce8a4abe8840738d024a42af (
plain)
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
|
/* SPDX-License-Identifier: GPL-2.0+ */
/*
* (C) Masami Komiya <mkomiya@sonare.it> 2005
*/
#ifndef __SNTP_H__
#define __SNTP_H__
#define NTP_SERVICE_PORT 123
#define SNTP_PACKET_LEN 48
/* Leap Indicator */
#define NTP_LI_NOLEAP 0x0
#define NTP_LI_61SECS 0x1
#define NTP_LI_59SECS 0x2
#define NTP_LI_ALARM 0x3
/* Version */
#define NTP_VERSION 4
/* Mode */
#define NTP_MODE_RESERVED 0
#define NTP_MODE_SYMACTIVE 1 /* Symmetric Active */
#define NTP_MODE_SYMPASSIVE 2 /* Symmetric Passive */
#define NTP_MODE_CLIENT 3
#define NTP_MODE_SERVER 4
#define NTP_MODE_BROADCAST 5
#define NTP_MODE_NTPCTRL 6 /* Reserved for NTP control message */
#define NTP_MODE_PRIVATE 7 /* Reserved for private use */
struct sntp_pkt_t {
#if __LITTLE_ENDIAN
uchar mode:3;
uchar vn:3;
uchar li:2;
#else
uchar li:2;
uchar vn:3;
uchar mode:3;
#endif
uchar stratum;
uchar poll;
uchar precision;
uint root_delay;
uint root_dispersion;
uint reference_id;
unsigned long long reference_timestamp;
unsigned long long originate_timestamp;
unsigned long long receive_timestamp;
unsigned long long transmit_timestamp;
} __attribute__((packed));
int sntp_prereq(void *data);
int sntp_start(void *data); /* Begin SNTP */
#endif /* __SNTP_H__ */
|
