4da088ec2f
Add ptpdomain directive to set the domain number of transmitted and accepted NTP-over-PTP messages. It might need to be changed in networks using a PTP profile with the same domain number. The default domain number of 123 follows the current NTP-over-PTP specification.
70 lines
1.8 KiB
C
70 lines
1.8 KiB
C
/*
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chronyd/chronyc - Programs for keeping computer clocks accurate.
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**********************************************************************
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* Copyright (C) Miroslav Lichvar 2021
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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**********************************************************************
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=======================================================================
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This is the header file for the Precision Time Protocol (PTP).
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*/
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#ifndef GOT_PTP_H
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#define GOT_PTP_H
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#include "sysincl.h"
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#include "ntp.h"
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#define PTP_VERSION_2 2
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#define PTP_VERSION_2_1 (2 | 1 << 4)
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#define PTP_TYPE_SYNC 0
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#define PTP_TYPE_DELAY_REQ 1
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#define PTP_FLAG_UNICAST (1 << (2 + 8))
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#define PTP_TLV_NTP 0x2023
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typedef struct {
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uint8_t type;
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uint8_t version;
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uint16_t length;
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uint8_t domain;
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uint8_t min_sdoid;
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uint16_t flags;
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uint8_t correction[8];
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uint8_t msg_specific[4];
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uint8_t port_id[10];
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uint16_t sequence_id;
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uint8_t control;
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int8_t interval;
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} PTP_Header;
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typedef struct {
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uint16_t type;
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uint16_t length;
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} PTP_TlvHeader;
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typedef struct {
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PTP_Header header;
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uint8_t origin_ts[10];
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PTP_TlvHeader tlv_header;
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NTP_Packet ntp_msg;
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} PTP_NtpMessage;
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#define PTP_NTP_PREFIX_LENGTH (int)offsetof(PTP_NtpMessage, ntp_msg)
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#endif
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