| /* |
| * (C) 2015 by Arturo Borrero Gonzalez <arturo.borrero.glez@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., 675 Mass Ave, Cambridge, MA 02139, USA. |
| */ |
| |
| #include "systemd.h" |
| #include "conntrackd.h" |
| #include "alarm.h" |
| #include <systemd/sd-daemon.h> |
| #include <sys/types.h> |
| #include <unistd.h> |
| #include <string.h> |
| |
| static struct alarm_block sd_watchdog; |
| static uint64_t sd_watchdog_interval; |
| |
| static void sd_ct_watchdog_alarm(struct alarm_block *a, void *data) |
| { |
| sd_notify(0, "WATCHDOG=1"); |
| add_alarm(&sd_watchdog, 0, sd_watchdog_interval); |
| } |
| |
| void sd_ct_watchdog_init(void) |
| { |
| int ret; |
| |
| if (CONFIG(systemd) == 0) |
| return; |
| |
| ret = sd_watchdog_enabled(0, &sd_watchdog_interval); |
| if (ret < 0) { |
| fprintf(stderr, "WARNING: failed to get watchdog details from" |
| " systemd: %s\n", strerror(-ret)); |
| return; |
| } else if (ret == 0) { |
| /* no watchdog required */ |
| return; |
| } |
| |
| /* from man page, recommended interval is half of set by admin */ |
| sd_watchdog_interval = sd_watchdog_interval / 2; |
| |
| init_alarm(&sd_watchdog, &sd_watchdog_interval, sd_ct_watchdog_alarm); |
| add_alarm(&sd_watchdog, 0, sd_watchdog_interval); |
| } |
| |
| void sd_ct_init(void) |
| { |
| if (CONFIG(systemd) == 0) |
| return; |
| |
| sd_notify(0, "READY=1"); |
| } |
| |
| void sd_ct_mainpid(pid_t pid) |
| { |
| if (CONFIG(systemd) == 0) |
| return; |
| |
| sd_notifyf(0, "MAINPID=%d", pid); |
| } |
| |
| void sd_ct_stop(void) |
| { |
| if (CONFIG(systemd) == 0) |
| return; |
| |
| sd_notify(0, "STOPPING=1"); |
| } |