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_IDMAPD=
  22 NEED_GSSD=
  23 PIPEFS_MOUNTPOINT=/var/lib/nfs/rpc_pipefs
  24 RPCGSSDOPTS=
  25 if [ -f $DEFAULTFILE ]; then
  26     . $DEFAULTFILE
  27 fi
  28
  29 . /lib/lsb/init-functions
  30
  31 #
  32 # Parse the fstab file, and determine whether we need idmapd and gssd. (The
  33 # /etc/defaults settings, if any, will override our autodetection.) This code
  34 # is partially adapted from the mountnfs.sh script in the sysvinit package.
  35 #
  36 AUTO_NEED_IDMAPD=no
  37 AUTO_NEED_GSSD=no
  38
  39 exec 9<&0 </etc/fstab
  40
  41 while read DEV MTPT FSTYPE OPTS REST
  42 do
  43     if [ "$FSTYPE" = "nfs4" ]; then
  44         AUTO_NEED_IDMAPD=yes
  45     fi
  46     case "$OPTS" in
  47         sec=krb5|*,sec=krb5|sec=krb5,*|*,sec=krb5i,*|sec=krb5i|*,sec=krb5i|sec=krb5i,*|*,sec=krb5i,*|sec=krb5p|*,sec=krb5p|sec=krb5p,*|*,sec=krb5p,*)
  48             AUTO_NEED_GSSD=yes
  49         ;;
  50     esac
  51 done
  52
  53 exec 0<&9 9<&-
  54
  55 #
  56 # We also need idmapd if we run an NFSv4 server. It's fairly difficult
  57 # to autodetect whether there are NFSv4 exports or not, and idmapd is not a
  58 # particularily heavy daemon, so we auto-enable it if we find an /etc/exports
  59 # file. This does not mean that there are NFSv4 or other mounts active (or
  60 # even that nfs-kernel-server is installed), but it matches what the "start"
  61 # condition in nfs-kernel-server's init script does, which has a value in
  62 # itself.
  63 #
  64 if [ -f /etc/exports ]; then
  65     AUTO_NEED_IDMAPD=yes
  66 fi
  67
  68
  69 case "$NEED_IDMAPD" in
  70     yes|no)
  71         ;;
  72     *)
  73         NEED_IDMAPD=$AUTO_NEED_IDMAPD
  74         ;;
  75 esac
  76
  77 case "$NEED_GSSD" in
  78     yes|no)
  79         ;;
  80     *)
  81         NEED_GSSD=$AUTO_NEED_GSSD
  82         ;;
  83 esac
  84
  85 # Exit if required binaries are missing.
  86 [ -x $PREFIX/sbin/rpc.statd ] || exit 0
  87 [ -x /usr/sbin/rpc.idmapd   ] || [ "$NEED_IDMAPD" = no ] || exit 0
  88 [ -x /usr/sbin/rpc.gssd     ] || [ "$NEED_GSSD"   = no ] || exit 0
  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         log_progress_msg "statd"
 124         start-stop-daemon --start --oknodo --quiet \
 125             --exec $PREFIX/sbin/rpc.statd -- $STATDOPTS
 126         if [ $? != 0 ]; then
 127             log_end_msg $?
 128             exit $?
 129         fi
 130
 131         if [ "$NEED_IDMAPD" = yes ] || [ "$NEED_GSSD" = yes ]
 132         then
 133             do_modprobe nfs
 134             do_modprobe nfs4
 135             if do_mount rpc_pipefs $PIPEFS_MOUNTPOINT
 136             then
 137                 if [ "$NEED_IDMAPD" = yes ]
 138                 then
 139                     log_progress_msg "idmapd"
 140                     start-stop-daemon --start --oknodo --quiet \
 141                             --exec /usr/sbin/rpc.idmapd
 142                     if [ $? != 0 ]; then
 143                         log_end_msg $?
 144                         exit $?
 145                     fi
 146                 fi
 147                 if [ "$NEED_GSSD" = yes ]
 148                 then
 149                     do_modprobe rpcsec_gss_krb5
 150                     log_progress_msg "gssd"
 151
 152                     # we need this available; better to fail now than
 153                     # mysteriously on the first mount
 154                     if ! grep -q -E '^nfs[       ]' /etc/services; then
 155                         log_action_end_msg 1 "broken /etc/services, please see /usr/share/doc/nfs-common/README.Debian.nfsv4"
 156                         exit 1
 157                     fi
 158
 159                     start-stop-daemon --start --oknodo --quiet \
 160                             --exec /usr/sbin/rpc.gssd -- $RPCGSSDOPTS
 161                     if [ $? != 0 ]; then
 162                         log_end_msg $?
 163                         exit $?
 164                     fi
 165                 fi
 166             fi
 167         fi
 168         log_end_msg 0
 169         ;;
 170
 171   stop)
 172         log_daemon_msg "Stopping $DESC"
 173
 174         if [ "$NEED_GSSD" = yes ]
 175         then
 176             log_progress_msg "gssd"
 177             start-stop-daemon --stop --oknodo --quiet \
 178                     --name rpc.gssd
 179             if [ $? != 0 ]; then
 180                 log_end_msg $?
 181                 exit $?
 182             fi
 183         fi
 184         if [ "$NEED_IDMAPD" = yes ]
 185         then
 186             log_progress_msg "idmapd"
 187             start-stop-daemon --stop --oknodo --quiet \
 188                 --name rpc.idmapd
 189             if [ $? != 0 ]; then
 190                 log_end_msg $?
 191                 exit $?
 192             fi
 193         fi
 194         log_progress_msg "statd"
 195         start-stop-daemon --stop --oknodo --quiet \
 196             --name rpc.statd
 197         if [ $? != 0 ]; then
 198             log_end_msg $?
 199             exit $?
 200         fi
 201         do_umount $PIPEFS_MOUNTPOINT 2>/dev/null || true
 202         log_end_msg 0
 203         ;;
 204
 205   status)
 206         if ! pidof rpc.statd >/dev/null
 207         then
 208             echo "rpc.statd not running"
 209             exit 3
 210         fi
 211
 212         if [ "$NEED_GSSD" = yes ]
 213         then
 214             if ! pidof rpc.gssd >/dev/null
 215             then
 216                 echo "rpc.statd running, but rpc.gssd halted"
 217                 exit 3
 218             fi
 219         fi
 220
 221         if [ "$NEED_IDMAPD" = yes ]
 222         then
 223             if ! pidof rpc.idmapd >/dev/null
 224             then
 225                 echo "rpc.statd running, but rpc.idmapd halted"
 226                 exit 3
 227             fi
 228         fi
 229
 230         echo "rpc.statd running"
 231         exit 0
 232         ;;
 233
 234   restart | force-reload)
 235         $0 stop
 236         sleep 1
 237         $0 start
 238         ;;
 239
 240   *)
 241         log_success_msg "Usage: nfs-common {start|stop|status|restart}"
 242         exit 1
 243         ;;
 244 esac
 245
 246 exit 0