5a992d4e18
What works: - Basic server & client operation - Transmission and reception of announce, sync and follow-up Still missing: - SO_TIMINGS for getting more precise packet timestamps - Implementation of delay_req and delay_resp packets - Status and stop interfaces for the daemon
118 lines
3.2 KiB
C
118 lines
3.2 KiB
C
/****************************************************************************
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* apps/netutils/ptpd/ptpv2.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __APPS_NETUTILS_PTPD_PTPV2_H
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#define __APPS_NETUTILS_PTPD_PTPV2_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <stdint.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Time-critical messages (id < 8) are sent to port 319,
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* other messages to port 320.
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*/
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#define PTP_UDP_PORT_EVENT 319
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#define PTP_UDP_PORT_INFO 320
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/* Multicast address to send to: 224.0.1.129 */
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#define PTP_MULTICAST_ADDR ((in_addr_t)0xE0000181)
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/* Message types */
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#define PTP_MSGTYPE_MASK 0x0F
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#define PTP_MSGTYPE_SYNC 0
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#define PTP_MSGTYPE_DELAY_REQ 1
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#define PTP_MSGTYPE_FOLLOW_UP 8
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#define PTP_MSGTYPE_DELAY_RESP 9
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#define PTP_MSGTYPE_ANNOUNCE 11
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/* Message flags */
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#define PTP_FLAGS0_TWOSTEP (1 << 1)
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/* Defined in IEEE 1588-2008 Precision Time Protocol
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* All multi-byte fields are big-endian.
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*/
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/* Common header for all message types */
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struct ptp_header_s
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{
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uint8_t messagetype;
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uint8_t version;
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uint8_t messagelength[2];
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uint8_t domain;
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uint8_t reserved1;
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uint8_t flags[2];
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uint8_t correction[8];
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uint8_t reserved2[4];
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uint8_t sourceidentity[8];
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uint8_t sourceportindex[2];
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uint8_t sequenceid[2];
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uint8_t controlfield;
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uint8_t logmessageinterval;
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};
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/* Announce a master clock */
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struct ptp_announce_s
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{
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struct ptp_header_s header;
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uint8_t origintimestamp[10];
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uint8_t utcoffset[2];
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uint8_t reserved;
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uint8_t gm_priority1;
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uint8_t gm_quality[4];
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uint8_t gm_priority2;
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uint8_t gm_identity[8];
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uint8_t stepsremoved[2];
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uint8_t timesource;
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};
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/* Sync: transmit timestamp from master clock */
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struct ptp_sync_s
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{
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struct ptp_header_s header;
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uint8_t origintimestamp[10];
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};
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/* FollowUp: actual timestamp of when sync message was sent */
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struct ptp_follow_up_s
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{
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struct ptp_header_s header;
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uint8_t origintimestamp[10];
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};
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#endif /* __APPS_NETUTILS_PTPD_PTPV2_H */
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