debian/nfs-common.init

   1 #!/bin/sh
   2
   3 ### BEGIN INIT INFO
   4 # Provides:          nfs-common
   5 # Required-Start:    $portmap $time
   6 # Required-Stop:     $time
   7 # Default-Start:     2 3 4 5 S
   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_STATD=yes
  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 # Exit if required binaries are missing.
  33 [ -x $PREFIX/sbin/rpc.statd ] || exit 0
  34
  35 #
  36 # Parse the fstab file, and determine whether we need idmapd and gssd. (The
  37 # /etc/defaults settings, if any, will override our autodetection.) This code
  38 # is partially adapted from the mountnfs.sh script in the sysvinit package.
  39 #
  40 AUTO_NEED_IDMAPD=no
  41 AUTO_NEED_GSSD=no
  42
  43 if [ -f /etc/fstab ]; then
  44     exec 9<&0 </etc/fstab
  45
  46     while read DEV MTPT FSTYPE OPTS REST
  47     do
  48         if [ "$FSTYPE" = "nfs4" ]; then
  49             AUTO_NEED_IDMAPD=yes
  50         fi
  51         case "$OPTS" in
  52             sec=krb5|*,sec=krb5|sec=krb5,*|*,sec=krb5i,*|sec=krb5i|*,sec=krb5i|sec=krb5i,*|*,sec=krb5i,*|sec=krb5p|*,sec=krb5p|sec=krb5p,*|*,sec=krb5p,*)
  53             AUTO_NEED_GSSD=yes
  54             ;;
  55         esac
  56     done
  57
  58     exec 0<&9 9<&-
  59 fi
  60
  61 #
  62 # We also need idmapd if we run an NFSv4 server. It's fairly difficult
  63 # to autodetect whether there are NFSv4 exports or not, and idmapd is not a
  64 # particularily heavy daemon, so we auto-enable it if we find an /etc/exports
  65 # file. This does not mean that there are NFSv4 or other mounts active (or
  66 # even that nfs-kernel-server is installed), but it matches what the "start"
  67 # condition in nfs-kernel-server's init script does, which has a value in
  68 # itself.
  69 #
  70 if [ -f /etc/exports ] && grep -q '^[[:space:]]*[^#]*/' /etc/exports; then
  71     AUTO_NEED_IDMAPD=yes
  72 fi
  73
  74 case "$NEED_IDMAPD" in
  75     yes|no)
  76         ;;
  77     *)
  78         NEED_IDMAPD=$AUTO_NEED_IDMAPD
  79         ;;
  80 esac
  81
  82 case "$NEED_GSSD" in
  83     yes|no)
  84         ;;
  85     *)
  86         NEED_GSSD=$AUTO_NEED_GSSD
  87         ;;
  88 esac
  89
  90 do_modprobe() {
  91     if [ -x /sbin/modprobe -a -f /proc/modules ]
  92     then
  93         modprobe -q "$1" || true
  94     fi
  95 }
  96
  97 do_mount() {
  98     if ! grep -E -qs "$1\$" /proc/filesystems
  99     then
 100         return 1
 101     fi
 102     if ! mountpoint -q "$2"
 103     then
 104         mount -t "$1" "$1" "$2"
 105         return
 106     fi
 107     return 0
 108 }
 109
 110 do_umount() {
 111     if mountpoint -q "$1"
 112     then
 113         umount "$1"
 114     fi
 115     return 0
 116 }
 117
 118 # See how we were called.
 119 case "$1" in
 120   start)
 121         log_daemon_msg "Starting $DESC"
 122
 123         if [ "$NEED_STATD" = yes ]; then
 124             log_progress_msg "statd"
 125             start-stop-daemon --start --oknodo --quiet \
 126                 --exec $PREFIX/sbin/rpc.statd -- $STATDOPTS
 127             if [ $? != 0 ]; then
 128                 log_end_msg $?
 129                 exit $?
 130             fi
 131         fi
 132
 133         # Don't start idmapd and gssd if we don't have them (say, if /usr is not
 134         # up yet).
 135         [ -x /usr/sbin/rpc.idmapd ] || NEED_IDMAPD=no
 136         [ -x /usr/sbin/rpc.gssd   ] || NEED_GSSD=no
 137
 138         if [ "$NEED_IDMAPD" = yes ] || [ "$NEED_GSSD" = yes ]
 139         then
 140             do_modprobe nfs
 141             do_modprobe nfs4
 142             if do_mount rpc_pipefs $PIPEFS_MOUNTPOINT
 143             then
 144                 if [ "$NEED_IDMAPD" = yes ]
 145                 then
 146                     log_progress_msg "idmapd"
 147                     start-stop-daemon --start --oknodo --quiet \
 148                             --exec /usr/sbin/rpc.idmapd
 149                     if [ $? != 0 ]; then
 150                         log_end_msg $?
 151                         exit $?
 152                     fi
 153                 fi
 154                 if [ "$NEED_GSSD" = yes ]
 155                 then
 156                     do_modprobe rpcsec_gss_krb5
 157                     log_progress_msg "gssd"
 158
 159                     # we need this available; better to fail now than
 160                     # mysteriously on the first mount
 161                     if ! grep -q -E '^nfs[       ]' /etc/services; then
 162                         log_action_end_msg 1 "broken /etc/services, please see /usr/share/doc/nfs-common/README.Debian.nfsv4"
 163                         exit 1
 164                     fi
 165
 166                     start-stop-daemon --start --oknodo --quiet \
 167                             --exec /usr/sbin/rpc.gssd -- $RPCGSSDOPTS
 168                     if [ $? != 0 ]; then
 169                         log_end_msg $?
 170                         exit $?
 171                     fi
 172                 fi
 173             fi
 174         fi
 175         log_end_msg 0
 176         ;;
 177
 178   stop)
 179         log_daemon_msg "Stopping $DESC"
 180
 181         if [ "$NEED_GSSD" = yes ]
 182         then
 183             log_progress_msg "gssd"
 184             start-stop-daemon --stop --oknodo --quiet \
 185                     --name rpc.gssd
 186             if [ $? != 0 ]; then
 187                 log_end_msg $?
 188                 exit $?
 189             fi
 190         fi
 191         if [ "$NEED_IDMAPD" = yes ]
 192         then
 193             log_progress_msg "idmapd"
 194             start-stop-daemon --stop --oknodo --quiet \
 195                 --name rpc.idmapd
 196             if [ $? != 0 ]; then
 197                 log_end_msg $?
 198                 exit $?
 199             fi
 200         fi
 201         if ["$NEED_STATD" = yes ]
 202         then
 203             log_progress_msg "statd"
 204             start-stop-daemon --stop --oknodo --quiet \
 205                 --name rpc.statd
 206             if [ $? != 0 ]; then
 207                 log_end_msg $?
 208                 exit $?
 209             fi
 210         fi
 211         do_umount $PIPEFS_MOUNTPOINT 2>/dev/null || true
 212         log_end_msg 0
 213         ;;
 214
 215   status)
 216         if [ "$NEED_STATD" = yes ]
 217         then
 218             if ! pidof rpc.statd >/dev/null
 219             then
 220                 echo "rpc.statd not running"
 221                 exit 3
 222             fi
 223         fi
 224
 225         if [ "$NEED_GSSD" = yes ]
 226         then
 227             if ! pidof rpc.gssd >/dev/null
 228             then
 229                 echo "rpc.gssd not running"
 230                 exit 3
 231             fi
 232         fi
 233
 234         if [ "$NEED_IDMAPD" = yes ]
 235         then
 236             if ! pidof rpc.idmapd >/dev/null
 237             then
 238                 echo "rpc.idmapd not running"
 239                 exit 3
 240             fi
 241         fi
 242
 243         echo "all daemons running"
 244         exit 0
 245         ;;
 246
 247   restart | force-reload)
 248         $0 stop
 249         sleep 1
 250         $0 start
 251         ;;
 252
 253   *)
 254         log_success_msg "Usage: nfs-common {start|stop|status|restart}"
 255         exit 1
 256         ;;
 257 esac
 258
 259 exit 0