#!/usr/bin/ksh -p
# Copyright (c) 2013, 2014, Oracle and/or its affiliates.  All rights reserved.
#

# Load SMF constants and functions
. /lib/svc/share/smf_include.sh
. /lib/svc/share/fs_include.sh
. /lib/svc/share/pkg5_include.sh

CHOWN=/usr/bin/chown
ZFS=/usr/sbin/zfs

result=$SMF_EXIT_ERR_FATAL

case "$1" in
'start')
	# check if we already have a mounted /var/share/pkg/repositories
	readmnttab /var/share/pkg/repositories < /etc/mnttab
	if [ "$fstype" = zfs ] ; then
		exit $SMF_EXIT_OK
	else
		rootistmpmnt=0
		readmnttab / < /etc/mnttab
		if [ "$fstype" = zfs ] ; then
			#
			# $special gets set by readmnttab in
			# /lib/svc/share/fs_include.sh
			#
			be=$special
			rpool=$(print $be | cut -d / -f1)			
		else
			# we're on a LiveCD, so exit immediately.
			exit $SMF_EXIT_OK
		fi

		DS="$rpool/VARSHARE/pkg/repositories"

		# If the dataset exists, we mount it along with any child
		# datasets, then exit.
		$ZFS list "$DS" > /dev/null 2>&1
		if [ $? -eq 0 ] ; then
			child_fs_mount=0
			for child in $($ZFS list -H -r -t filesystem \
			    -o name "$DS"); do
				$ZFS mount "$child"
				child_fs_mount=$(( $child_fs_mount + $? ))
			done
			if [ $child_fs_mount -eq 0 ] ; then
				exit $SMF_EXIT_OK
			else
				check_failure 1 \
				    "Unable to mount child datasets of $DS" \
				    $SMF_FMRI exit
			fi
		fi

		# Otherwise, we need to create the dataset, taking care to set
		# canmount=noauto, to allow multiple bootable rpools to coexist
		# on the same system.
		$ZFS create -p $DS
		check_failure $? "Unable to create $DS" $SMF_FMRI exit

		for fs in "$rpool/VARSHARE/pkg" \
		    "$rpool/VARSHARE/pkg/repositories" ; do
			$ZFS set canmount=noauto $fs
		done

		$ZFS allow pkg5srv create,mount,canmount,snapshot "$DS"
		check_failure $? \
		    "Unable to delegate ZFS permissions on $DS" \
		    $SMF_FMRI exit

		$CHOWN pkg5srv:pkg5srv /var/share/pkg/repositories
		check_failure $? \
		    "Unable to chown /var/share/pkg/repositories" \
		    $SMF_FMRI exit
	fi
	;;
esac

exit $SMF_EXIT_OK