NTP packet definitions. More...

Detailed Description

NTP packet definitions.

Author: Luminița Lăzărescu clumi.nosp@m.nita.nosp@m..laza.nosp@m.resc.nosp@m.u@gma.nosp@m.il.c.nosp@m.om; Martine Lenders m.len.nosp@m.ders.nosp@m.@fu-b.nosp@m.erli.nosp@m.n.de

Definition in file ntp_packet.h.

#include <stdint.h>
#include "byteorder.h"

Include dependency graph for ntp_packet.h:

This graph shows which files directly or indirectly include this file:

Macros
#define	NTP_VERSION (4U)
	NTP version.

#define	NTP_PORT (123U)
	NTP port number.

#define	NTP_UNIX_OFFSET (2208988800)
	Offset in seconds of NTP timestamp (seconds from 1990-01-01 00:00:00 UTC) to UNIX timestamp (seconds from 1970-01-01 00:00:00 UTC).

Enumerations
enum	ntp_mode_t { NTP_MODE_RESERVED = 0, NTP_MODE_SYM_ACTIVE, NTP_MODE_SYM_PASSIVE, NTP_MODE_CLIENT, NTP_MODE_SERVER, NTP_MODE_BROADCAST, NTP_MODE_PRIV }
	NTP modes. More...

Functions
static void	ntp_packet_set_li (ntp_packet_t *packet, uint8_t li)
	Set leap indicator in a NTP packet. More...

static void	ntp_packet_set_vn (ntp_packet_t *packet)
	Set version in a NTP packet. More...

static void	ntp_packet_set_mode (ntp_packet_t *packet, ntp_mode_t mode)
	Set mode in a NTP packet. More...

static uint8_t	ntp_packet_get_li (ntp_packet_t *packet)
	Get leap indicator from a NTP packet. More...

static uint8_t	ntp_packet_get_vn (ntp_packet_t *packet)
	Get version from a NTP packet. More...

static ntp_mode_t	ntp_packet_get_mode (ntp_packet_t *packet)
	Get mode from a NTP packet. More...

#define	NTP_PACKET_LI_POS (6U)
	Bit positions and masks for ntp_packet_t::li_vn_mode. More...

#define	NTP_PACKET_LI_MASK (0xc0)
	leap indicator mask

#define	NTP_PACKET_VN_POS (3U)
	version position

#define	NTP_PACKET_VN_MASK (0x38)
	version mask

#define	NTP_PACKET_MODE_MASK (0x07)
	mode mask

Data Structures