debian/nfs-common.init

   1 #!/bin/sh
   2
   3 ### BEGIN INIT INFO
   4 # Provides:          nfs-common
   5 # Required-Start:    $time
   6 # Required-Stop:     $time
   7 # Default-Start:     2 3 4 5
   8 # Default-Stop:      0 1 6
   9 # Short-Description: NFS support files common to client and server
  10 # Description:       NFS is a popular protocol for file sharing across
  11 #                    TCP/IP networks. This service provides various
  12 #                    support functions for NFS mounts.
  13 ### END INIT INFO
  14
  15 # What is this?
  16 DESC="NFS common utilities"
  17
  18 # Read config
  19 DEFAULTFILE=/etc/default/nfs-common
  20 PREFIX=
  21 NEED_LOCKD=
  22 NEED_IDMAPD=
  23 NEED_GSSD=
  24 PIPEFS_MOUNTPOINT=/var/lib/nfs/rpc_pipefs
  25 RPCGSSDOPTS=
  26 if [ -f $DEFAULTFILE ]; then
  27     . $DEFAULTFILE
  28 fi
  29
  30 . /lib/lsb/init-functions
  31
  32 # Determine whether lockd daemon is required.
  33 case "$NEED_LOCKD" in
  34 yes|no) ;;
  35 *)  case `uname -r` in
  36     '' | [01].* | 2.[0123].* )
  37         # Older kernels may or may not need a lockd daemon.
  38         # We must assume they do, unless we can prove otherwise.
  39         # (A false positive here results only in a harmless message.)
  40         NEED_LOCKD=yes
  41         if test -f /proc/ksyms
  42         then
  43             grep -q lockdctl /proc/ksyms || NEED_LOCKD=no
  44         fi
  45         ;;
  46
  47     *)  # Modern kernels (>= 2.4) start a lockd thread automatically.
  48         NEED_LOCKD=no
  49         ;;
  50     esac
  51     ;;
  52 esac
  53
  54 #
  55 # Parse the fstab file, and determine whether we need idmapd and gssd. (The
  56 # /etc/defaults settings, if any, will override our autodetection.) This code
  57 # is partially adapted from the mountnfs.sh script in the sysvinit package.
  58 #
  59 AUTO_NEED_IDMAPD=no
  60 AUTO_NEED_GSSD=no
  61
  62 exec 9<&0 </etc/fstab
  63
  64 while read DEV MTPT FSTYPE OPTS REST
  65 do
  66     if [ "$FSTYPE" = "nfs4" ]; then
  67         AUTO_NEED_IDMAPD=yes
  68     fi
  69     case "$OPTS" in
  70         sec=krb5|*,sec=krb5|sec=krb5,*|*,sec=krb5i,*|sec=krb5i|*,sec=krb5i|sec=krb5i,*|*,sec=krb5i,*|sec=krb5p|*,sec=krb5p|sec=krb5p,*|*,sec=krb5p,*)
  71             AUTO_NEED_GSSD=yes
  72         ;;
  73     esac
  74 done
  75
  76 exec 0<&9 9<&-
  77
  78 #
  79 # We also need idmapd if we run an NFSv4 server. It's fairly difficult
  80 # to autodetect whether there are NFSv4 exports or not, and idmapd is not a
  81 # particularily heavy daemon, so we auto-enable it if we find an /etc/exports
  82 # file. This does not mean that there are NFSv4 or other mounts active (or
  83 # even that nfs-kernel-server is installed), but it matches what the "start"
  84 # condition in nfs-kernel-server's init script does, which has a value in
  85 # itself.
  86 #
  87 if [ -f /etc/exports ]; then
  88     AUTO_NEED_IDMAPD=yes
  89 fi
  90
  91
  92 case "$NEED_IDMAPD" in
  93     yes|no)
  94         ;;
  95     *)
  96         NEED_IDMAPD=$AUTO_NEED_IDMAPD
  97         ;;
  98 esac
  99
 100 case "$NEED_GSSD" in
 101     yes|no)
 102         ;;
 103     *)
 104         NEED_GSSD=$AUTO_NEED_GSSD
 105         ;;
 106 esac
 107
 108 # Exit if required binaries are missing.
 109 [ -x $PREFIX/sbin/rpc.statd ] || exit 0
 110 [ -x $PREFIX/sbin/rpc.lockd ] || [ "$NEED_LOCKD"  = no ] || exit 0
 111 [ -x /usr/sbin/rpc.idmapd   ] || [ "$NEED_IDMAPD" = no ] || exit 0
 112 [ -x /usr/sbin/rpc.gssd     ] || [ "$NEED_GSSD"   = no ] || exit 0
 113
 114 do_modprobe() {
 115     if [ -x /sbin/modprobe -a -f /proc/modules ]
 116     then
 117         modprobe -q "$1" || true
 118     fi
 119 }
 120
 121 do_mount() {
 122     if ! grep -E -qs "$1\$" /proc/filesystems
 123     then
 124         return 1
 125     fi
 126     if ! mountpoint -q "$2"
 127     then
 128         mount -t "$1" "$1" "$2"
 129         return
 130     fi
 131     return 0
 132 }
 133
 134 do_umount() {
 135     if mountpoint -q "$1"
 136     then
 137         umount "$1"
 138     fi
 139     return 0
 140 }
 141
 142 # See how we were called.
 143 case "$1" in
 144   start)
 145         log_daemon_msg "Starting $DESC"
 146
 147         log_progress_msg "statd"
 148         start-stop-daemon --start --oknodo --quiet \
 149             --exec $PREFIX/sbin/rpc.statd -- $STATDOPTS
 150         if [ $? != 0 ]; then
 151             log_end_msg $?
 152             exit $?
 153         fi
 154
 155         if [ "$NEED_LOCKD" = yes ]
 156         then
 157             log_progress_msg "lockd"
 158             start-stop-daemon --start --oknodo --quiet \
 159                 --exec $PREFIX/sbin/rpc.lockd
 160             if [ $? != 0 ]; then
 161                 log_end_msg $?
 162                 exit $?
 163             fi
 164         fi
 165         if [ "$NEED_IDMAPD" = yes ] || [ "$NEED_GSSD" = yes ]
 166         then
 167             do_modprobe nfs
 168             do_modprobe nfs4
 169             if do_mount rpc_pipefs $PIPEFS_MOUNTPOINT
 170             then
 171                 if [ "$NEED_IDMAPD" = yes ]
 172                 then
 173                     log_progress_msg "idmapd"
 174                     start-stop-daemon --start --oknodo --quiet \
 175                             --exec /usr/sbin/rpc.idmapd
 176                     if [ $? != 0 ]; then
 177                         log_end_msg $?
 178                         exit $?
 179                     fi
 180                 fi
 181                 if [ "$NEED_GSSD" = yes ]
 182                 then
 183                     do_modprobe rpcsec_gss_krb5
 184                     log_progress_msg "gssd"
 185
 186                     # we need this available; better to fail now than
 187                     # mysteriously on the first mount
 188                     if ! grep -q -E '^nfs[       ]' /etc/services; then
 189                         log_action_end_msg 1 "broken /etc/services, please see /usr/share/doc/nfs-common/README.Debian.nfsv4"
 190                         exit 1
 191                     fi
 192
 193                     start-stop-daemon --start --oknodo --quiet \
 194                             --exec /usr/sbin/rpc.gssd -- $RPCGSSDOPTS
 195                     if [ $? != 0 ]; then
 196                         log_end_msg $?
 197                         exit $?
 198                     fi
 199                 fi
 200             fi
 201         fi
 202         log_end_msg 0
 203         ;;
 204
 205   stop)
 206         log_daemon_msg "Stopping $DESC"
 207
 208         if [ "$NEED_GSSD" = yes ]
 209         then
 210             log_progress_msg "gssd"
 211             start-stop-daemon --stop --oknodo --quiet \
 212                     --name rpc.gssd
 213             if [ $? != 0 ]; then
 214                 log_end_msg $?
 215                 exit $?
 216             fi
 217         fi
 218         if [ "$NEED_IDMAPD" = yes ]
 219         then
 220             log_progress_msg "idmapd"
 221             start-stop-daemon --stop --oknodo --quiet \
 222                 --name rpc.idmapd
 223             if [ $? != 0 ]; then
 224                 log_end_msg $?
 225                 exit $?
 226             fi
 227         fi
 228         if [ "$NEED_LOCKD" = yes ]
 229         then
 230             log_progress_msg "lockd"
 231             start-stop-daemon --stop --oknodo --quiet \
 232                 --name rpc.lockd
 233             if [ $? != 0 ]; then
 234                 log_end_msg $?
 235                 exit $?
 236             fi
 237         else
 238             pkill -KILL -u root -x lockd || true
 239         fi
 240         log_progress_msg "statd"
 241         start-stop-daemon --stop --oknodo --quiet \
 242             --name rpc.statd
 243         if [ $? != 0 ]; then
 244             log_end_msg $?
 245             exit $?
 246         fi
 247         do_umount $PIPEFS_MOUNTPOINT 2>/dev/null || true
 248         log_end_msg 0
 249         ;;
 250
 251   status)
 252         if ! pidof rpc.statd >/dev/null
 253         then
 254             echo "rpc.statd not running"
 255             exit 3
 256         fi
 257
 258         if [ "$NEED_GSSD" = yes ]
 259         then
 260             if ! pidof rpc.gssd >/dev/null
 261             then
 262                 echo "rpc.statd running, but rpc.gssd halted"
 263                 exit 3
 264             fi
 265         fi
 266
 267         if [ "$NEED_LOCKD" = yes ]
 268         then
 269             if ! pidof rpc.lockd >/dev/null
 270             then
 271                 echo "rpc.statd running, but rpc.lockd halted"
 272                 exit 3
 273             fi
 274         fi
 275
 276         if [ "$NEED_IDMAPD" = yes ]
 277         then
 278             if ! pidof rpc.idmapd >/dev/null
 279             then
 280                 echo "rpc.statd running, but rpc.idmapd halted"
 281                 exit 3
 282             fi
 283         fi
 284
 285         echo "rpc.statd running"
 286         exit 0
 287         ;;
 288
 289   restart | force-reload)
 290         $0 stop
 291         sleep 1
 292         $0 start
 293         ;;
 294
 295   *)
 296         log_success_msg "Usage: nfs-common {start|stop|status|restart}"
 297         exit 1
 298         ;;
 299 esac
 300
 301 exit 0