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/* pluto_sd.c
* Status notifications for systemd
* Copyright (C) 2013 Matt Rogers <mrogers@redhat.com>
* Copyright (C) 2016 Paul Wouters <pwouters@redhat.com>
* Copyright (C) 2019 Andrew Cagney <cagney@gnu.org>
* Copyright (C) 2019 D. Hugh Redelmeier <hugh@mimosa.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. See <https://www.gnu.org/licenses/gpl2.txt>.
*
* 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.
*/
#include <stdlib.h>
#include <sys/types.h>
#include <unistd.h>
#include "constants.h"
#include "lswsd.h"
#include "defs.h" /* for so_serial_t */
#include "log.h"
#include "timer.h"
#include "pluto_sd.h"
static global_timer_cb sd_watchdog_event;
void pluto_sd_init(struct logger *logger)
{
uint64_t sd_usecs;
int ret = lswsd_watchdog_enabled(&sd_usecs);
if (ret == 0) {
llog(RC_LOG, logger, "systemd watchdog not enabled - not sending watchdog keepalives");
return;
}
if (ret < 0) {
llog(RC_LOG, logger, "systemd watchdog returned error %d - not sending watchdog keepalives", ret);
return;
}
llog(RC_LOG, logger, "systemd watchdog for ipsec service configured with timeout of %"PRIu64" usecs", sd_usecs);
uintmax_t sd_secs = sd_usecs / 2 / 1000000; /* suggestion from sd_watchdog_enabled(3) */
llog(RC_LOG, logger, "watchdog: sending probes every %ju secs", sd_secs);
/* tell systemd that we have finished starting up */
pluto_sd(PLUTO_SD_START, SD_REPORT_NO_STATUS);
/* start the keepalive events */
enable_periodic_timer(EVENT_SD_WATCHDOG, sd_watchdog_event,
deltatime(sd_secs));
}
/*
* Interface for lswsd_notify(3) calls.
*/
void pluto_sd(int action, int status)
{
enum_buf ab;
dbg("pluto_sd: executing action %s(%d), status %d",
str_enum(&sd_action_names, action, &ab), action, status);
switch (action) {
case PLUTO_SD_WATCHDOG:
lswsd_notify("WATCHDOG=1");
break;
case PLUTO_SD_RELOADING:
lswsd_notify("RELOADING=1");
break;
case PLUTO_SD_READY:
lswsd_notify("READY=1");
break;
case PLUTO_SD_STOPPING:
lswsd_notifyf("STOPPING=1\nSTATUS=PLUTO_EXIT=%d", status);
break;
case PLUTO_SD_START:
lswsd_notifyf("READY=1\nSTATUS=Startup completed.\nMAINPID=%lu",
(unsigned long) getpid());
break;
case PLUTO_SD_EXIT:
lswsd_notifyf("STATUS=Exited.\nERRNO=%i", status);
break;
default:
bad_case(action);
break;
}
}
void sd_watchdog_event(struct logger *unused_logger UNUSED)
{
pluto_sd(PLUTO_SD_WATCHDOG, SD_REPORT_NO_STATUS);
}
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