chaosvpn/chaosvpn.rc.d

   1 #!/bin/bash
   2
   3 . /etc/rc.conf
   4 . /etc/rc.d/functions
   5
   6 PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin
   7
   8 DAEMON=/usr/sbin/chaosvpn # Introduce the server's location here
   9 TINCCTL=/usr/sbin/tincctl
  10 NAME=chaosvpn             # Introduce the short server's name here
  11 DESC="Agora Link"         # Introduce a short description here
  12
  13 PIDFILE="overridden later"
  14
  15 test -x $DAEMON || exit 0
  16
  17 # Default options, these can be overriden by the information
  18 # at /etc/conf.d/$NAME
  19 DAEMON_OPTS="-a"        # Additional options given to the server
  20 # -a == do not run as daemon, onetime fetch+update of config and tincd
  21 #       restart
  22
  23 DIETIME=10              # Time to wait for the server to die, in seconds
  24                         # If this value is set too low you might not
  25                         # let some servers to die gracefully and
  26                         # 'restart' will not work
  27
  28 STARTTIME=1             # Time to wait for the server to start, in seconds
  29                         # If this value is set each time the server is
  30                         # started (on start or restart) the script will
  31                         # stall to try to determine if it is running
  32                         # If it is not set and the server takes time
  33                         # to setup a pid file the log message might
  34                         # be a false positive (says it did not start
  35                         # when it actually did)
  36
  37 DAEMONUSER=""           # Users to run the daemons as. If this value
  38                         # is set start-stop-daemon will chuid the server
  39
  40 CONFIGS="chaosvpn.conf" # which network config to startup
  41
  42
  43 # Include defaults if available
  44 if [ -f /etc/conf.d/$NAME ] ; then
  45     . /etc/conf.d/$NAME
  46 fi
  47
  48 # Use this if you want the user to explicitly set 'RUN' in
  49 # /etc/conf.d/
  50 if [ "x$RUN" != "xyes" ] ; then
  51     echo "$NAME disabled, please adjust the configuration to your needs "
  52     echo "and then set RUN to 'yes' in /etc/conf.d/$NAME to enable it."
  53     exit 0
  54 fi
  55
  56 # Check that the user exists (if we set a user)
  57 # Does the user exist?
  58 if [ -n "$DAEMONUSER" ] ; then
  59     if getent passwd | grep -q "^$DAEMONUSER:"; then
  60         # Obtain the uid and gid
  61         DAEMONUID=`getent passwd |grep "^$DAEMONUSER:" | awk -F : '{print $3}'`
  62         DAEMONGID=`getent passwd |grep "^$DAEMONUSER:" | awk -F : '{print $4}'`
  63     else
  64         echo "The user $DAEMONUSER, required to run $NAME does not exist."
  65         exit 0
  66     fi
  67 fi
  68
  69
  70 running_pid() {
  71 # Check if a given process pid's cmdline matches a given name
  72     local pid=$1
  73     local name=$2
  74     [ -z "$pid" ] && return 1
  75     [ ! -d /proc/$pid ] &&  return 1
  76     local cmd=`cat /proc/$pid/cmdline | tr "\000" "\n"|head -n 1 |cut -d : -f 1`
  77     # Is this the expected server
  78     [ "$cmd" != "$name" ] &&  return 1
  79     return 0
  80 }
  81
  82 start_server() {
  83         local errcode
  84 # Start the process using the wrapper
  85         if [ -z "$DAEMONUSER" ] ; then
  86             $DAEMON $DAEMON_OPTS >/dev/null
  87             errcode=$?
  88         else
  89 # if we are using a daemonuser then change the user id
  90             su -s '/bin/sh' $DAEMONUSER -c "$DAEMON $DAEMON_OPTS"
  91             errcode=$?
  92         fi
  93         return $errcode
  94 }
  95
  96 extract_configinfos() {
  97         local config="$1"
  98         PIDFILE=""
  99         DAEMON_OPTS="--help"
 100         networkname=""
 101
 102         [ -f "/etc/tinc/$config" ] || return 1
 103
 104         # TODO: replace the following with something smaller like sed/busybox sed
 105         networkname=$( perl -ne 's/^.*?\$networkname\s*=\s*\"(.*?)\".*$/$1/ && print $_' <"/etc/tinc/$config" )
 106         [ -z "$networkname" ] && return 1
 107
 108         PIDFILE="/var/run/tinc.$networkname.pid"
 109         DAEMON_OPTS="-a -c /etc/tinc/$config"
 110         return 0;
 111 }
 112
 113 start_configs() {
 114         local mode="$1"
 115         local errcode
 116         local config
 117         for config in $CONFIGS ; do
 118                 if [ "$mode" = "reload" ] ; then
 119                         stat_busy "Reloading $DESC: $config"
 120                 else
 121                         stat_busy "Starting $DESC: $config"
 122                 fi
 123
 124                 if extract_configinfos "$config" ; then
 125                         start_server && stat_done || stat_fail
 126                 fi
 127         done
 128
 129         add_daemon $NAME
 130 }
 131
 132 stop_configs() {
 133         local config
 134         for config in $CONFIGS ; do
 135                 stat_busy "Stopping $DESC " "$config"
 136                 extract_configinfos "$config"
 137                 if [ -x "$TINCCTL" ] ; then
 138                         # tincctl exists since tinc 1.1-git
 139                         "$TINCCTL" -n "$networkname" stop 2>/dev/null && stat_done || stat_fail
 140                 else
 141                         if [ -f "$PIDFILE" ] ; then
 142                                 kill `cat $PIDFILE` && stat_done || stat_fail
 143                         else
 144                                 stat_append "apparently not running"
 145                                 stat_fail
 146                         fi
 147                 fi
 148         done
 149
 150         rm_daemon $NAME
 151
 152         return 0
 153 }
 154
 155
 156 case "$1" in
 157   start)
 158         start_configs
 159         ;;
 160   stop)
 161         stop_configs
 162         ;;
 163   force-stop)
 164         stop_configs
 165         ;;
 166   restart|force-reload)
 167         stop_configs && start_configs
 168         ;;
 169 #  status)
 170 #        echo "Checking status of $DESC" "$NAME"
 171 #        if running ;  then
 172 #            log_progress_msg "running"
 173 #            log_end_msg 0
 174 #        else
 175 #            log_progress_msg "apparently not running"
 176 #            log_end_msg 1
 177 #            exit 0
 178 #        fi
 179 #        ;;
 180   reload)
 181         #log_warning_msg "Reloading $NAME daemon: not implemented, as the daemon"
 182         #log_warning_msg "cannot re-read the config file (use restart)."
 183         # Reloading is the same as starting for us
 184         start_configs "reload"
 185         ;;
 186   *)
 187         N=/etc/init.d/$NAME
 188         echo "Usage: $N {start|stop|force-stop|restart|force-reload|status}" >&2
 189         exit 1
 190         ;;
 191 esac
 192
 193 exit 0