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Current File : //etc/network/if-up.d/mountnfs

#! /bin/sh
# Description:       Now that TCP/IP is configured, mount the NFS file
#                    systems in /etc/fstab if needed. If possible,
#                    start the portmapper before mounting (this is needed for
#                    Linux 2.1.x and up).
#
#                    Also mounts SMB filesystems now, so the name of
#                    this script is getting increasingly inaccurate.

PATH=/sbin:/bin
. /lib/init/vars.sh

. /lib/lsb/init-functions
. /lib/init/mount-functions.sh

set_env() {
	[ -f /etc/fstab ] || return
	#
	# Read through fstab line by line. If it is NFS, set the flag
	# for mounting NFS file systems. If any NFS partition is found and it
	# not mounted with the nolock option, we start the portmapper.
	# 
	# If any sec={krb5,krb5i,krb5p} option is given, or any of the file
	# systems are nfs4, we'll need to start rpc.gssd and/or rpc.idmapd too;
	# we'll leave that to nfs-common.
	#

	exec 9<&0 </etc/fstab

	start_nfs=no
	NETFS=""
	NETDEV=""
	while read DEV MTPT FSTYPE OPTS REST
	do
		case "$DEV" in
		  ""|\#*)
			continue
			;;
		esac
		case "$OPTS" in
		  noauto|*,noauto|noauto,*|*,noauto,*)
			continue
			;;
		  _netdev|*,_netdev|_netdev,*|*,_netdev,*)
			NETDEV=yes
			;;
		esac
		case "$FSTYPE" in
		  nfs)
		  	# NFS filsystems normally require statd and portmap. However,
			# if nolock is set, portmap and statd are not required for this
			# file system.
			case "$OPTS" in
			  nolock|*,nolock|nolock,*|*,nolock,*)
			  	# no action
				;;
			  *)
				start_nfs=yes
				;;
			esac

			# However, Kerberos requires gssd, so start nfs-common anyway.
			case "$OPTS" in
			  sec=krb5|*,sec=krb5|sec=krb5,*|*,sec=krb5,*|sec=krb5i|*,sec=krb5i|sec=krb5i,*|*,sec=krb5i,*|sec=krb5p|*,sec=krb5p|sec=krb5p,*|*,sec=krb5p,*)

			  	start_nfs=yes
				;;
			esac
			;;
		  nfs4)
			# NFSv4 requires idmapd, so start nfs-common no matter what the options are.
			start_nfs=yes
			;;
		  smbfs|cifs|coda|ncp|ncpfs|ocfs2|gfs)
			;;
		  *)
			FSTYPE=
			;;
		esac
		if [ "$FSTYPE" ]
		then
			case "$NETFS" in
			  $FSTYPE|*,$FSTYPE|$FSTYPE,*|*,$FSTYPE,*)
				;;
			  *)
				NETFS="$NETFS${NETFS:+,}$FSTYPE"
				;;
			esac
		fi
	done

	exec 0<&9 9<&-
}

do_start() {
	#
	# Initialize nfs-common (which starts rpc.statd, rpc.gssd
	# and/or rpc.idmapd, and loads the right kernel modules if
	# applicable) if we use Kerberos and/or NFSv4 mounts.
	#
	if [ "$start_nfs" = yes ] && [ -x /etc/init.d/nfs-common ]
	then
		[ -x /etc/init.d/portmap ] && /etc/init.d/portmap start
		[ -x /etc/init.d/rpcbind ] && /etc/init.d/rpcbind start
		/etc/init.d/nfs-common start
	fi

	pre_mountall
	if [ "$NETFS" ]
	then
		mount -a -t$NETFS
	fi
	if [ "$NETDEV" ]; then
		mount -a -O _netdev
	fi
	post_mountall
}

exit_unless_last_interface() {
    grep "^[:space:]*auto" /etc/network/interfaces  | \
	sed -e 's/[ \t]*auto[ \t]*//;s/[ \t]*$//;s/[ \t]/\n/g' | \
	while read i; do
	if [ `grep -c $i /etc/network/run/ifstate` -eq "0" ]; then
	    msg="if-up.d/mountnfs[$IFACE]: waiting for interface $i before doing NFS mounts"
	    log_warning_msg "$msg"
	    # Can not pass this as a variable because of the while subshell
	    mkdir /var/run/network/mountnfs_earlyexit 2> /dev/null
	fi
    done
    if [ -d /var/run/network/mountnfs_earlyexit ]; then
	rmdir /var/run/network/mountnfs_earlyexit 2>/dev/null
	exit 0
    fi
}

# Using 'no !=' instead of 'yes =' to make sure async nfs mounting is
# the default even without a value in /etc/default/rcS
set_env
# Exit imediately and do not claim to wait for the last interface if
# no network file systems are listed in /etc/fstab.
if [ "$start_nfs" = "no" ] && [ ! "$NETFS" ] && [ ! "$NETDEV" ]; then
  exit 0
fi

if [ no != "$ASYNCMOUNTNFS" ]; then
    # Not for loopback!
    [ "$IFACE" != "lo" ] || exit 0

    # Lock around this otherwise insanity may occur
    mkdir /var/run/network          2>/dev/null || true

    # Wait until all auto interfaces are up before attemting to mount
    # network file systems.
    exit_unless_last_interface

    if mkdir /var/run/network/mountnfs 2>/dev/null ; then
	:
    else
	msg="if-up.d/mountnfs[$IFACE]: lock /var/run/network/mountnfs exist, not mounting"
	log_failure_msg "$msg"
	# Log if /usr/ is mounted
	[ -x /usr/bin/logger ] && /usr/bin/logger -t "if-up.d/mountnfs[$IFACE]" "$msg"
	exit 0
    fi

    on_exit() {
        # Clean up lock when script exits, even if it is interrupted
	rmdir /var/run/network/mountnfs 2>/dev/null || exit 0
    }
    trap on_exit EXIT # Enable emergency handler
    do_start
elif [ yes = "$FROMINITD" ] ; then
    do_start
fi