General function to use for sending signals for data collection
from ptp4l program.
Signed-off-by: Anders Selhammer <anders.selham...@est.tech>
---
snmp4lptp.c | 37 +++++++++++++++++++++++++++++++++++++
snmp4lptp_mib.h | 30 ++++++++++++++++++++++++++++++
2 files changed, 67 insertions(+)
create mode 100644 snmp4lptp_mib.h
diff --git a/snmp4lptp.c b/snmp4lptp.c
index b32e4f6..e06f212 100644
--- a/snmp4lptp.c
+++ b/snmp4lptp.c
@@ -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];
diff --git a/snmp4lptp_mib.h b/snmp4lptp_mib.h
new file mode 100644
index 0000000..9692129
--- /dev/null
+++ b/snmp4lptp_mib.h
@@ -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.selham...@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 */
--
1.8.3.1
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