etc/rc.d/vkernel

   1 #!/bin/sh
   2 #
   3
   4 # PROVIDE: vkernel
   5 # REQUIRE: LOGIN NETWORKING
   6
   7 . /etc/rc.subr
   8
   9 name="vkernel"
  10 rcvar=`set_rcvar`
  11
  12 start_cmd="vkernel_start"
  13 stop_cmd="vkernel_stop"
  14
  15 vkernel_start()
  16 {
  17         echo -n 'Starting virtual kernels:'
  18         for _vkernel in ${vkernel_list}
  19         do
  20                 # Start with a clean set of variables
  21                 unset pidfile bin memsize rootimgs ifaces logfile flags
  22                 unset vkuser vkgroup memimg
  23
  24                 # Configure user to run vkernel
  25                 eval vkuser=\"\${vkernel_${_vkernel}_user}\"
  26                 if [ -z "${vkuser}" ]; then
  27                     vkuser="root"
  28                     vkgroup="wheel"
  29                 else
  30                     vkgroup=$(id -ng ${vkuser})
  31                 fi
  32
  33                 # Check if already running
  34                 eval pidfile="/var/run/vkernel.${_vkernel}.pid"
  35                 if [ -f "${pidfile}" ]; then
  36                         eval pid=`cat ${pidfile}`
  37                         if [ ! -z "${pid}" -a ! -z "`ps axwwp ${pid} | grep -wE "^[ ]*${pid}" | grep -v grep | awk '{print $1}'`" ]; then
  38                                 echo
  39                                 warn "vkernel ${_vkernel} already running? (check ${pidfile})"
  40                                 continue
  41                         fi
  42                 else
  43                         # Regular users do not have write access in /var/run
  44                         install -c -o ${vkuser} -g ${vkgroup} /dev/null ${pidfile}
  45                 fi
  46
  47                 # Configure vkernel binary
  48                 eval _bin=\"\${vkernel_${_vkernel}_bin}\"
  49                 if [ -z "${_bin}" -o ! -x "${_bin}" ]; then
  50                         eval _bin=\"\${vkernel_bin}\"
  51                         if [ -z "${_bin}" -o ! -x "${_bin}" ]; then
  52                                 echo
  53                                 warn "Missing or undefined binary for vkernel '${_vkernel}'. Skipping."
  54                                 continue
  55                         fi
  56                 fi
  57                 bin=${_bin}
  58
  59                 # Configure vkernel memory
  60                 eval _memsize=\"\$vkernel_${_vkernel}_memsize\"
  61                 if [ -z "${_memsize}" ]; then
  62                         echo
  63                         warn "No memsize has been defined for vkernel '${_vkernel}'. Skipping."
  64                         continue
  65                 else
  66                         memsize="-m ${_memsize}"
  67                 fi
  68
  69                 # Configure vkernel memory image file
  70                 eval _memimg=\"\${vkernel_${_vkernel}_memimg}\"
  71                 if [ -z "${_memimg}" ]; then
  72                         mkdir -m 1777 -p /var/vkernel
  73
  74                         for n in $(seq 0 999999)
  75                         do
  76                                 eval _memf=$(printf "/var/vkernel/memimg.%06s" ${n})
  77                                 if [ ! -f "${_memf}" ]
  78                                 then
  79                                         memimg=" -i ${_memf}"
  80                                         break
  81                                 else
  82                                         if lockf -kst 0 ${_memf} echo >/dev/null
  83                                         then
  84                                                 # Test if memimg is writable by vkuser
  85                                                 su - ${vkuser} -c "test -w ${_memf}"
  86                                                 if [ $? -eq 0 ]
  87                                                 then
  88                                                         memimg="-i ${_memf}"
  89                                                         break
  90                                                 fi
  91                                         fi
  92                                 fi
  93                         done
  94                 else
  95                         memimg="-i ${_memimg}"
  96                 fi
  97
  98                 # Configure vkernel root image(s)
  99                 eval _rootimgs=\"\${vkernel_${_vkernel}_rootimg_list}\"
 100                 if [ -z "${_rootimgs}" ]; then
 101                         echo
 102                         warn "No root image has been defined for vkernel '${_vkernel}'."
 103                 else
 104                         for _rootimg in ${_rootimgs}
 105                         do
 106                                 eval rootimgs=\"${rootimgs} -r ${_rootimg}\"
 107                         done
 108                 fi
 109
 110                 # Configure optional vkernel network interface(s)
 111                 eval _ifaces=\"\${vkernel_${_vkernel}_iface_list}\"
 112                 if [ -n "${_ifaces}" ]; then
 113                         for _iface in ${_ifaces}
 114                         do
 115                                 eval ifaces=\"${ifaces} -I ${_iface}\"
 116                         done
 117                 fi
 118
 119                 # Configure optional console logfile
 120                 eval logfile=\"\${vkernel_${_vkernel}_logfile}\"
 121                 [ -z "${logfile}" ] && logfile="/dev/null"
 122
 123                 # Configure optional flags
 124                 eval flags=\"\${vkernel_${_vkernel}_flags}\"
 125
 126                 eval "daemon -u ${vkuser} ${bin} ${memsize} ${rootimgs} " \
 127                      "${memimg} ${ifaces} ${flags} -p ${pidfile}" \
 128                      ">>${logfile} 2>&1 </dev/null"
 129                 echo -n " ${_vkernel}"
 130         done
 131         echo '.'
 132 }
 133
 134 vkernel_stop()
 135 {
 136         for _vkernel in ${vkernel_list}
 137         do
 138                 eval pidfile="/var/run/vkernel.${_vkernel}.pid"
 139                 if [ -f "${pidfile}" ]; then
 140                         eval pid=`cat ${pidfile}`
 141                 fi
 142                 if [ -z "${pid}" ]; then
 143                         warn "vkernel '${_vkernel}' not running?"
 144                         continue
 145                 fi
 146                 eval kill -TERM ${pid}
 147
 148                 eval _kill_timeout=\"\${vkernel_${_vkernel}_kill_timeout}\"
 149                 if [ -z "${_kill_timeout}" ]; then
 150                         eval _kill_timeout=\"\${vkernel_kill_timeout}\"
 151                         if [ -z "${_kill_timeout}" ]; then
 152                                 _kill_timeout=60
 153                         fi
 154                 fi
 155
 156                 # Check that the vkernel ended properly
 157                 cnt=1
 158                 eval temp_pid=`ps axwwp ${pid} | grep -wE "^[ ]*${pid}" | grep -v grep | awk '{print $1}'`
 159                 while [ ! -z "${temp_pid}" -a "${cnt}" -lt "${_kill_timeout}" ]; do
 160                         eval temp_pid=`ps axwwp ${pid} | grep -wE "^[ ]*${pid}" | grep -v grep | awk '{print $1}'`
 161                         cnt=`expr $cnt + 1`
 162                         sleep 1
 163                 done
 164
 165                 if [ ! -z "${temp_pid}" ]; then
 166                         eval kill -KILL ${pid}
 167                         warn "'${_vkernel}' had to be forcefully killed."
 168                 fi
 169         done
 170 }
 171
 172
 173 load_rc_config $name
 174 run_rc_command "$1"