tools/frrinit.sh.in

   1 #!/bin/bash
   2 #
   3 ### BEGIN INIT INFO
   4 # Provides: frr
   5 # Required-Start: $local_fs $network $remote_fs $syslog
   6 # Required-Stop: $local_fs $network $remote_fs $syslog
   7 # Default-Start:  2 3 4 5
   8 # Default-Stop: 0 1 6
   9 # Short-Description: start and stop the FRR routing suite
  10 # Description: FRR is a routing suite for IP routing protocols like
  11 #              BGP, OSPF, RIP and others. This script contols the main
  12 #              "watchfrr" daemon.
  13 ### END INIT INFO
  14 #
  15 # This is the main init script for FRR.  It mostly wraps frrcommon.sh which
  16 # provides the actual functions to start/stop/restart things.
  17 #
  18
  19 if [ -r "/lib/lsb/init-functions" ]; then
  20         . /lib/lsb/init-functions
  21 else
  22         log_success_msg() {
  23                 echo "$@"
  24         }
  25         log_warning_msg() {
  26                 echo "$@" >&2
  27         }
  28         log_failure_msg() {
  29                 echo "$@" >&2
  30         }
  31 fi
  32
  33 self="`dirname $0`"
  34 if [ -r "$self/frrcommon.sh" ]; then
  35         . "$self/frrcommon.sh"
  36 else
  37         . "@CFG_SBIN@/frrcommon.sh"
  38 fi
  39
  40 case "$1" in
  41 start)
  42         daemon_list daemons
  43         watchfrr_options="$watchfrr_options $daemons"
  44         daemon_start watchfrr
  45         ;;
  46 stop)
  47         daemon_stop watchfrr
  48         all_stop --reallyall
  49         exit ${still_running:-0}
  50         ;;
  51
  52 restart|force-reload)
  53         daemon_stop watchfrr
  54         all_stop --reallyall
  55
  56         daemon_list daemons
  57         watchfrr_options="$watchfrr_options $daemons"
  58         daemon_start watchfrr
  59         ;;
  60
  61 status)
  62         fail=0
  63         print_status watchfrr || fail=1
  64         all_status || fail=1
  65         exit $fail
  66         ;;
  67
  68 reload)
  69         if [ ! -x "$RELOAD_SCRIPT" ]; then
  70                 log_failure_msg "The frr-pythontools package is required for reload functionality."
  71                 exit 1
  72         fi
  73
  74         # systemd doesn't set WATCHDOG_USEC for reload commands.
  75         watchfrr_pidfile="$V_PATH/watchfrr.pid"
  76         watchfrr_pid="`cat \"$watchfrr_pidfile\"`"
  77         if [ -d "/proc/$watchfrr_pid" ]; then
  78                 wdt="`tr '\0' '\n' < /proc/$watchfrr_pid/environ | grep '^WATCHDOG_USEC='`"
  79                 wdt="${wdt#WATCHDOG_USEC=}"
  80                 [ -n "$wdt" ] && : ${WATCHDOG_USEC:=$wdt}
  81                 [ -n "$WATCHDOG_USEC" ] && export WATCHDOG_USEC
  82         fi
  83
  84         # restart watchfrr to pick up added daemons.
  85         # NB: This will NOT cause the other daemons to be restarted.
  86         daemon_list daemons
  87         watchfrr_options="$watchfrr_options $daemons"
  88         daemon_stop watchfrr && \
  89                 daemon_start watchfrr
  90
  91         # make systemd not kill watchfrr after ExecReload completes
  92         # 3 goats were sacrificed to restore sanity after coding this
  93         watchfrr_pid="`cat \"$watchfrr_pidfile\"`"
  94         if [ -f "/proc/$watchfrr_pid/cgroup" -a -d "/sys/fs/cgroup/systemd" ]; then
  95                 cg="`egrep '^[0-9]+:name=systemd:' \"/proc/$watchfrr_pid/cgroup\"`"
  96                 cg="${cg#*:*:}"
  97
  98                 cgmain="$cg"
  99                 cgmain="${cgmain%/.control}"
 100                 cgmain="${cgmain%/control}"
 101
 102                 [ -n "$cg" -a "$cg" != "$cgmain" ] && \
 103                         echo "$watchfrr_pid" > "/sys/fs/cgroup/systemd/$cgmain/tasks"
 104         fi
 105
 106         NEW_CONFIG_FILE="${2:-$C_PATH/frr.conf}"
 107         [ ! -r $NEW_CONFIG_FILE ] && log_failure_msg "Unable to read new configuration file $NEW_CONFIG_FILE" && exit 1
 108         "$RELOAD_SCRIPT" --reload "$NEW_CONFIG_FILE"
 109         exit $?
 110         ;;
 111
 112 *)
 113         log_failure_msg "Unknown command: $1" >&2
 114         exit 1
 115 esac