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port: Add a method for constructing signaling messages. 

Signed-off-by: Richard Cochran <richardcochran@gmail.com>
master
Richard Cochran 2018-04-01 08:17:25 -07:00
parent 0fffa6c4b5
commit 1ccc55ef07
3 changed files with 53 additions and 3 deletions
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6
makefile
View File

@ -25,9 +25,9 @@ LDLIBS = -lm -lrt $(EXTRA_LDFLAGS)
PRG = ptp4l hwstamp_ctl nsm phc2sys phc_ctl pmc timemaster
OBJ = bmc.o clock.o clockadj.o clockcheck.o config.o e2e_tc.o fault.o \
filter.o fsm.o hash.o linreg.o mave.o mmedian.o msg.o ntpshm.o nullf.o phc.o \
pi.o port.o print.o ptp4l.o p2p_tc.o raw.o rtnl.o servo.o sk.o stats.o tc.o \
telecom.o tlv.o transport.o tsproc.o udp.o udp6.o uds.o unicast_fsm.o util.o \
version.o
pi.o port.o port_signaling.o print.o ptp4l.o p2p_tc.o raw.o rtnl.o servo.o \
sk.o stats.o tc.o telecom.o tlv.o transport.o tsproc.o udp.o udp6.o uds.o \
unicast_fsm.o util.o version.o
OBJECTS = $(OBJ) hwstamp_ctl.o nsm.o phc2sys.o phc_ctl.o pmc.o pmc_common.o \
sysoff.o timemaster.o

4
port_private.h
View File

@ -84,6 +84,7 @@ struct port {
struct {
UInteger16 announce;
UInteger16 delayreq;
UInteger16 signaling;
UInteger16 sync;
} seqnum;
tmv_t peer_delay;
@ -160,6 +161,9 @@ int port_set_delay_tmo(struct port *p);
int port_set_qualification_tmo(struct port *p);
void port_show_transition(struct port *p, enum port_state next,
enum fsm_event event);
struct ptp_message *port_signaling_construct(struct port *p,
struct address *address,
struct PortIdentity *tpid);
int port_tx_announce(struct port *p, struct address *dst);
int port_tx_sync(struct port *p, struct address *dst);
int process_announce(struct port *p, struct ptp_message *m);

46
port_signaling.c 100644
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@ -0,0 +1,46 @@
/**
* @file port_signaling.c
* @brief Implements signaling messages
* @note Copyright (C) 2018 Richard Cochran <richardcochran@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA.
*/
#include "port_private.h"
struct ptp_message *port_signaling_construct(struct port *p,
struct address *address,
struct PortIdentity *tpid)
{
struct ptp_message *msg;
msg = msg_allocate();
if (!msg) {
return NULL;
}
msg->hwts.type = p->timestamping;
msg->header.tsmt = SIGNALING | p->transportSpecific;
msg->header.ver = PTP_VERSION;
msg->header.messageLength = sizeof(struct signaling_msg);
msg->header.domainNumber = clock_domain_number(p->clock);
msg->header.sourcePortIdentity = p->portIdentity;
msg->header.sequenceId = p->seqnum.signaling++;
msg->header.control = CTL_OTHER;
msg->header.logMessageInterval = 0x7F;
msg->signaling.targetPortIdentity = *tpid;
msg->header.flagField[0] |= UNICAST;
msg->address = *address;
return msg;
}