47 lines
1.7 KiB
C
47 lines
1.7 KiB
C
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/**
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* @file port_signaling.c
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* @brief Implements signaling messages
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* @note Copyright (C) 2018 Richard Cochran <richardcochran@gmail.com>
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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 the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU 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 02110-1335 USA.
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*/
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#include "port_private.h"
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struct ptp_message *port_signaling_construct(struct port *p,
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struct address *address,
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struct PortIdentity *tpid)
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{
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struct ptp_message *msg;
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msg = msg_allocate();
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if (!msg) {
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return NULL;
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}
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msg->hwts.type = p->timestamping;
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msg->header.tsmt = SIGNALING | p->transportSpecific;
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msg->header.ver = PTP_VERSION;
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msg->header.messageLength = sizeof(struct signaling_msg);
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msg->header.domainNumber = clock_domain_number(p->clock);
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msg->header.sourcePortIdentity = p->portIdentity;
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msg->header.sequenceId = p->seqnum.signaling++;
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msg->header.control = CTL_OTHER;
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msg->header.logMessageInterval = 0x7F;
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msg->signaling.targetPortIdentity = *tpid;
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msg->header.flagField[0] |= UNICAST;
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msg->address = *address;
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return msg;
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}
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