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snmp4lptp: Added function for data collection from ptp4l program. 

General function to use for sending signals for data collection
from ptp4l program.

Signed-off-by: Anders Selhammer <anders.selhammer@est.tech>
master
Anders Selhammer 2018-08-21 10:53:10 +02:00 committed by Richard Cochran
parent 68dcd10673
commit 1d0832b2f5
2 changed files with 67 additions and 0 deletions
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37
snmp4lptp.c
View File

@ -17,6 +17,9 @@
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include <errno.h>
#include <poll.h>
#include <net-snmp/net-snmp-config.h>
#include <net-snmp/net-snmp-includes.h>
#include <net-snmp/agent/net-snmp-agent-includes.h>
@ -24,10 +27,44 @@
#include "config.h"
#include "pmc_common.h"
#include "print.h"
#include "snmp4lptp_mib.h"
#include "util.h"
#define SNMP_NFD 1
static struct pmc *pmc;
struct ptp_message* snmp4lptp_run_pmc(char *cmd)
{
struct pollfd pollfd[SNMP_NFD];
int cnt, tmo = 100;
pollfd[0].fd = pmc_get_transport_fd(pmc);
pollfd[0].events = POLLIN | POLLPRI;
if (cmd && pmc_do_command(pmc, cmd)) {
pr_err("bad command: %s", cmd);
}
while (is_running()) {
cnt = poll(pollfd, SNMP_NFD, tmo);
if (cnt < 0) {
if (EINTR == errno) {
continue;
} else {
pr_emerg("poll failed");
break;
}
} else if (!cnt) {
break;
}
if (pollfd[0].revents & (POLLIN|POLLPRI)) {
return pmc_recv(pmc);
}
}
return NULL;
}
static int open_pmc(struct config *cfg)
{
char uds_local[MAX_IFNAME_SIZE + 1];

30
snmp4lptp_mib.h 100644
View File

@ -0,0 +1,30 @@
/**
* @file snmp4lptp_mib.h
* @brief Common header file for all supported mibs in linuxptp
* @note Copyright (C) 2018 Anders Selhammer <anders.selhammer@est.tech>
*
* 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 02110-1301 USA.
*/
#ifndef HAVE_SNMP4LPTP_MIB_H
#define HAVE_SNMP4LPTP_MIB_H
#include "msg.h"
/*
* function declarations
*/
struct ptp_message* snmp4lptp_run_pmc(char *cmd);
#endif /* HAVE_SNMP4LPTP_MIB_H */