#!/bin/sh
#
# Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
#
#pragma ident	"@(#)postinstall	1.35	07/04/11 SMI"

PATH="/usr/bin:/usr/sbin:$PATH"; export PATH

#
# SUNWcsd postinstall configuration
#
# To address various limitations of the packaging system with respect to
# driver files, we provide a somewhat improved system within this script.
# Driver file entries which must be created on the target system because
# they are needed BEFORE drvconfig runs on the subsequent re-configuration
# boot are added to the $prototype_* variable definitions below.  This script
# processes these maps, creating driver nodes and symbolic links, and
# updating the software database as necessary.
#
# DO NOT add entries for drivers which are not needed before drvconfig runs
# DO NOT copy any of this code to any other package script, OS/Net or otherwise
# DO NOT hardcode minor numbers for clone drivers (use the driver name instead)
#
# The prototype_com, prototype_sparc, and prototype_i386 variables defined
# below each consist of five whitespace-delimited columns, defined as follows:
#
# 1. Device Type - The single character 'b' (for block device) or 'c' (for
# character device).  Used as an argument to installf(1M) and mknod(1M).
#
# 2. Device Path - Relative (should NOT begin with /) path to the device file
# to be created.  This base is interpreted relative to $BASEDIR (typically /a).
#
# 3. Driver Name - The name of the driver which should be used to determine
# the major number for the device file.  This name should match the name of
# a driver previously added to $BASEDIR/etc/name_to_major via add_drv.
#
# 4. Minor Number - The minor number for the device file.  If the minor number
# is a sequence of digits, this literal minor number is used as the argument
# to mknod(1M).  If it contains any non-digit characters, it is presumed to
# be the name of a driver, and the corresponding major number from the
# name_to_major file is substituted instead.  This is useful for clone entries.
#
# 5. Symbolic Link - The symlink to the device path which should be created.
# This field may be left blank if no symlink is needed; if multiple links to
# the same device are required, entries may be repeated with different links.
# The link should be a relative path to which $BASEDIR can be prepended.
#
# Following its creation, the driver entry is assigned permissions and
# ownership according to the first matching entry in $BASEDIR/etc/minor_perm.
# This script uses the same algorithm as drvconfig(1M) to match minor_perm
# entries.  If no matching minor_perm entry is found, mode 0600, owner "root",
# and group "sys" is assigned.
#

#
# Common driver entries:
#
prototype_com='
c devices/pseudo/arp@0:arp              arp             0       dev/arp
c devices/pseudo/clone@0:ibd            clone           ibd     dev/ibd
c devices/pseudo/icmp@0:icmp            icmp            0       dev/icmp
c devices/pseudo/icmp@0:icmp            icmp            0       dev/rawip
c devices/pseudo/icmp6@0:icmp6          icmp6           1       dev/icmp6
c devices/pseudo/icmp6@0:icmp6          icmp6           1       dev/rawip6
c devices/pseudo/ip@0:ip                ip              0       dev/ip
c devices/pseudo/ip6@0:ip6              ip6             1       dev/ip6
c devices/pseudo/rts@0:rts              rts             0       dev/rts
c devices/pseudo/tcp@0:tcp              tcp             2       dev/tcp
c devices/pseudo/tcp6@0:tcp6            tcp6            3       dev/tcp6
c devices/pseudo/udp@0:udp              udp             0       dev/udp
c devices/pseudo/udp6@0:udp6            udp6            1       dev/udp6
c devices/pseudo/ipsecah@0:ipsecah      ipsecah         1       dev/ipsecah
c devices/pseudo/ipsecesp@0:ipsecesp    ipsecesp        1       dev/ipsecesp
c devices/pseudo/keysock@0:keysock      keysock         0       dev/keysock
c devices/pseudo/cn@0:console           cn              0       dev/console
c devices/pseudo/cn@0:syscon            cn              0       dev/syscon
c devices/pseudo/cn@0:systty            cn              0       dev/systty
c devices/pseudo/devinfo@0:devinfo      devinfo         0
c devices/pseudo/ksyms@0:ksyms          ksyms           0       dev/ksyms
c devices/pseudo/log@0:conslog          log             0       dev/conslog
c devices/pseudo/log@0:log              log             5       dev/log
c devices/pseudo/mm@0:mem               mm              0       dev/mem
c devices/pseudo/mm@0:kmem              mm              1       dev/kmem
c devices/pseudo/mm@0:null              mm              2       dev/null
c devices/pseudo/mm@0:allkmem           mm              3       dev/allkmem
c devices/pseudo/mm@0:zero              mm              12      dev/zero
c devices/pseudo/openeepr@0:openprom    openeepr        0       dev/openprom
c devices/pseudo/sad@0:admin            sad             1       dev/sad/admin
c devices/pseudo/sad@0:user             sad             0       dev/sad/user
c devices/pseudo/sy@0:tty               sy              0       dev/tty
c devices/pseudo/sysevent@0:sysevent	sysevent	0       dev/sysevent
c devices/pseudo/sysmsg@0:msglog        sysmsg          1       dev/msglog
c devices/pseudo/sysmsg@0:sysmsg        sysmsg          0       dev/sysmsg
c devices/pseudo/tl@0:ticots            tl              0       dev/ticots
c devices/pseudo/tl@0:ticotsord         tl              1       dev/ticotsord
c devices/pseudo/tl@0:ticlts            tl              2       dev/ticlts
c devices/pseudo/wc@0:wscons            wc              0       dev/wscons
c devices/pseudo/zfs@0:zfs              zfs             0       dev/zfs
'

#
# SPARC-specific driver entries:
#
prototype_sparc='
c devices/pseudo/clone@0:eri            clone           eri     dev/eri
c devices/pseudo/clone@0:hme            clone           hme     dev/hme
c devices/pseudo/cvc@0:cvc              cvc             0
c devices/pseudo/cvcredir@0:cvcredir    cvcredir        0
'

#
# Intel-specific driver entries:
#
prototype_i386='
c devices/pseudo/conskbd@0:kbd          conskbd         0       dev/kbd
'

#
# SUNWcsd postinstall implementation
#
# Below this point is the code to process the above $prototype_* maps.
# You should not need to modify any code below this point to configure
# new drivers.  You should also not need to add code here to remove
# nodes and links created by a previous version of this package; the
# pkghistory mechanism can be used to pkgrm SUNWcsd prior to its re-
# installation, which will remove everything created by this script.
#

#
# warn - Print an error message to stderr and also to our error log file
#
warn()
{
	echo "$PKG: $*" >& 2
	echo "$PKG: $*" >> $errlog
}

#
# name_to_major - Echo the major number of the given device driver to stdout.
#
name_to_major()
{
	awk '$1 == NAME { print $2; exit }' NAME=$1 $BASEDIR/etc/name_to_major
}

#
# drv_alias - Return 0 (true) if $1 is a driver alias for $2
#
drv_alias()
{
	grep "^$1[	 ][	 ]*$2[	 ]" $BASEDIR/etc/driver_aliases \
	    >/dev/null 2>&1
}

#
# Determine an appropriate place for our private error log file.  If $PKGSAV
# is available, use that; otherwise use /tmp or /dev/null.  We keep a private
# error log primarily as a debugging facility.
#
errlog=/dev/null
for file in $PKGSAV/SUNWcsd.err /tmp/SUNWcsd.err; do
	rm -f $file
	if touch $file >/dev/null 2>&1; then
		errlog=$file
		break
	fi
done

#
# If name_to_major or minor_perm is missing, then we're in big trouble (SUNWcsr
# isn't installed yet, or the file has been subsequently deleted).
#
for file in name_to_major minor_perm; do
	if [ ! -s $BASEDIR/etc/$file ]; then
		warn "$BASEDIR/etc/$file is missing or zero-length"
		warn "cannot proceed with device installation"
		exit 1
	fi
done

eval echo "\"\$prototype_com\"" "\"\$prototype_${ARCH}\"" | \
while read type path driver minor symlink; do

	[ -z "$type" ] && continue	# Skip blank lines

	#
	# Convert the driver name to the corresponding major number
	# by looking it up in /etc/name_to_major.
	#
	major=`name_to_major $driver`
	if [ -z "$major" ]; then
		warn "major number for '$driver' not found"
		warn "$path will not be created"
		continue
	fi

	#
	# If the minor number does not consist solely of digits, we assume
	# it too is the name of a driver (this is typically done for clone
	# entries), and so we convert it to the driver's major number.
	#
	if [ -z "`expr $minor : '^\([0-9][0-9]*\)$'`" ]; then
		minor_num=`name_to_major $minor`
		if [ -z "$minor_num" ]; then
			warn "major number for '$minor' not found"
			warn "$path will not be created"
			continue
		else
			minor=$minor_num
		fi
	fi

	#
	# Convert the driver path to two tokens used for matching entries in
	# /etc/minor_perm: we strip the '@' address, and then obtain the
	# drv_name (string prior to ':') and min_name (everything else).
	#
	mp_ifs="$IFS"		# Save IFS (token separator list)
	IFS=":$IFS"		# Add ':' as a separator for set and read below

	shift $#; set -- `basename "$path" | sed 's/@[^:]*//'`
	drv_name="$1"; shift
	min_name="$*"

	exec 3>&0 <$BASEDIR/etc/minor_perm	# Save stdin; open minor_perm
	mp_match=no		# We have not yet seen a matching entry

	while read mp_drvname mp_minname mp_mode mp_owner mp_group; do

		#
		# The logic here is a bit confusing, but matches the equally
		# confusing logic used to parse minor_perm entries in the
		# drvconfig change_perm() function.
		#
		if [ $driver = $mp_drvname ] || [ $drv_name = clone -a \
		   \( $mp_drvname = clone -o $mp_drvname = $min_name \) ] || \
		   ( [ $drv_name = $mp_drvname ] && \
		   drv_alias $driver $drv_name ); then

			#
			# If we have a driver name match, see if globbing the
			# minor_perm pattern matches min_name.
			#
			case "$min_name" in
			$mp_minname)
				# Use the last entry that matches just like
				# devfsadm does on a reconfiguration boot
				mode=$mp_mode
				owner=$mp_owner
				group=$mp_group
				mp_match=yes
				;;
			esac
		fi
	done

	IFS="$mp_ifs"		# Restore IFS
	exec 0<&3 3>&-		# Restore stdin to the $prototype_* pipeline

	if [ $mp_match = no ]; then
		mode=0600	# Default values should be secure
		owner=root
		group=sys

		warn "no minor_perm entry matched $path"
		warn "defaulting to $mode $owner $group"
	fi
	
	echo "add $type $path ($major, $minor) $mode $owner $group"
	rm -f $BASEDIR/$path

	if mknod $BASEDIR/$path $type $major $minor; then

		installf -c none $PKGINST $BASEDIR/$path $type \
		    $major $minor $mode $owner $group || \
			warn "failed to add $path to pkg database"

		chown $owner $BASEDIR/$path
		chgrp $group $BASEDIR/$path
		chmod $mode $BASEDIR/$path
	else
		warn "failed to mknod $path"
		continue
	fi

	if [ -n "$symlink" ]; then
		#
		# The link destination must be specified as an absolute path
		# to installf.  The source we modify to be relative to the
		# destination (each "/" becomes a "../" prefix); thus
		# linkdst "dev/foo/bar" yields prefix "../../".
		#
                lprefix=`echo "$symlink" | sed 's:[^/]*::g;s:/:../:g'`
		linksrc="$lprefix$path"
                linkdst="/$symlink"

                echo "add link $linkdst=$linksrc"

		#
		# We don't actually need to create the symlink at this time
		# because the installf -f at the end will create all symlinks.
		# We pipe the link description to installf instead of putting
		# it on the command-line to work around installf broken-ness.
		#
		echo "$linkdst=$linksrc s" | installf -c none $PKGINST - || \
		    warn "failed to add $linkdst to pkg database"
	fi
done

cat << EOF > ${BASEDIR}/devices/README

Copyright 2002 Sun Microsystems, Inc.  All rights reserved.
Use is subject to license terms.

 This installation of Solaris uses devfs to provide /devices.

Warning: Do not change the content of this directory or its
         subdirectories.

 The directory containing this README file is typically hidden
underneath the /devices devfs(7FS) mount point.  All content at or
below this directory is an implementation artifact and subject to
incompatible change or removal without notification.

 Please reference devfs(7FS) for more information.

EOF

if [ -f ${BASEDIR}/devices/README ]; then
	chown root:sys ${BASEDIR}/devices/README
	chmod 444 ${BASEDIR}/devices/README
fi

installf -f $PKGINST || warn "failed to update pkg database"
[ -s $errlog ] && exit 2 || exit 0