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      1 #!/bin/sh
      2 #
      3 # buildbff.sh: Create AIX SMIT-installable OpenSSH packages
      4 # $Id: buildbff.sh,v 1.13 2011/05/05 03:48:41 djm Exp $
      5 #
      6 # Author: Darren Tucker (dtucker at zip dot com dot au)
      7 # This file is placed in the public domain and comes with absolutely
      8 # no warranty.
      9 #
     10 # Based originally on Ben Lindstrom's buildpkg.sh for Solaris
     11 #
     12 
     13 #
     14 # Tunable configuration settings
     15 # 	create a "config.local" in your build directory or set
     16 #	environment variables to override these.
     17 #
     18 [ -z "$PERMIT_ROOT_LOGIN" ] && PERMIT_ROOT_LOGIN=no
     19 [ -z "$X11_FORWARDING" ] && X11_FORWARDING=no
     20 [ -z "$AIX_SRC" ] && AIX_SRC=no
     21 
     22 umask 022
     23 
     24 startdir=`pwd`
     25 
     26 perl -v >/dev/null || (echo perl required; exit 1)
     27 
     28 # Path to inventory.sh: same place as buildbff.sh
     29 if  echo $0 | egrep '^/'
     30 then
     31 	inventory=`dirname $0`/inventory.sh		# absolute path
     32 else
     33 	inventory=`pwd`/`dirname $0`/inventory.sh	# relative path
     34 fi
     35 
     36 #
     37 # We still support running from contrib/aix, but this is deprecated
     38 #
     39 if pwd | egrep 'contrib/aix$'
     40 then
     41 	echo "Changing directory to `pwd`/../.."
     42 	echo "Please run buildbff.sh from your build directory in future."
     43 	cd ../..
     44 	contribaix=1
     45 fi
     46 
     47 if [ ! -f Makefile ]
     48 then
     49 	echo "Makefile not found (did you run configure?)"
     50 	exit 1
     51 fi
     52 
     53 #
     54 # Directories used during build:
     55 # current dir = $objdir		directory you ran ./configure in.
     56 # $objdir/$PKGDIR/ 		directory package files are constructed in
     57 # $objdir/$PKGDIR/root/		package root ($FAKE_ROOT)
     58 #
     59 objdir=`pwd`
     60 PKGNAME=openssh
     61 PKGDIR=package
     62 
     63 #
     64 # Collect local configuration settings to override defaults
     65 #
     66 if [ -s ./config.local ]
     67 then
     68 	echo Reading local settings from config.local
     69 	. ./config.local
     70 fi
     71 
     72 #
     73 # Fill in some details from Makefile, like prefix and sysconfdir
     74 #	the eval also expands variables like sysconfdir=${prefix}/etc
     75 #	provided they are eval'ed in the correct order
     76 #
     77 for confvar in prefix exec_prefix bindir sbindir libexecdir datadir mandir mansubdir sysconfdir piddir srcdir
     78 do
     79 	eval $confvar=`grep "^$confvar=" $objdir/Makefile | cut -d = -f 2`
     80 done
     81 
     82 #
     83 # Collect values of privsep user and privsep path
     84 #	currently only found in config.h
     85 #
     86 for confvar in SSH_PRIVSEP_USER PRIVSEP_PATH
     87 do
     88 	eval $confvar=`awk '/#define[ \t]'$confvar'/{print $3}' $objdir/config.h`
     89 done
     90 
     91 # Set privsep defaults if not defined
     92 if [ -z "$SSH_PRIVSEP_USER" ]
     93 then
     94 	SSH_PRIVSEP_USER=sshd
     95 fi
     96 if [ -z "$PRIVSEP_PATH" ]
     97 then
     98 	PRIVSEP_PATH=/var/empty
     99 fi
    100 
    101 # Clean package build directory
    102 rm -rf $objdir/$PKGDIR
    103 FAKE_ROOT=$objdir/$PKGDIR/root
    104 mkdir -p $FAKE_ROOT
    105 
    106 # Start by faking root install
    107 echo "Faking root install..."
    108 cd $objdir
    109 make install-nokeys DESTDIR=$FAKE_ROOT
    110 
    111 if [ $? -gt 0 ]
    112 then
    113 	echo "Fake root install failed, stopping."
    114 	exit 1
    115 fi
    116 
    117 #
    118 # Copy informational files to include in package
    119 #
    120 cp $srcdir/LICENCE $objdir/$PKGDIR/
    121 cp $srcdir/README* $objdir/$PKGDIR/
    122 
    123 #
    124 # Extract common info requires for the 'info' part of the package.
    125 #	AIX requires 4-part version numbers
    126 #
    127 VERSION=`./ssh -V 2>&1 | cut -f 1 -d , | cut -f 2 -d _`
    128 MAJOR=`echo $VERSION | cut -f 1 -d p | cut -f 1 -d .`
    129 MINOR=`echo $VERSION | cut -f 1 -d p | cut -f 2 -d .`
    130 PATCH=`echo $VERSION | cut -f 1 -d p | cut -f 3 -d .`
    131 PORTABLE=`echo $VERSION | awk 'BEGIN{FS="p"}{print $2}'`
    132 [ "$PATCH" = "" ] && PATCH=0
    133 [ "$PORTABLE" = "" ] && PORTABLE=0
    134 BFFVERSION=`printf "%d.%d.%d.%d" $MAJOR $MINOR $PATCH $PORTABLE`
    135 
    136 echo "Building BFF for $PKGNAME $VERSION (package version $BFFVERSION)"
    137 
    138 #
    139 # Set ssh and sshd parameters as per config.local
    140 #
    141 if [ "${PERMIT_ROOT_LOGIN}" = no ]
    142 then
    143 	perl -p -i -e "s/#PermitRootLogin yes/PermitRootLogin no/" \
    144 		$FAKE_ROOT/${sysconfdir}/sshd_config
    145 fi
    146 if [ "${X11_FORWARDING}" = yes ]
    147 then
    148 	perl -p -i -e "s/#X11Forwarding no/X11Forwarding yes/" \
    149 		$FAKE_ROOT/${sysconfdir}/sshd_config
    150 fi
    151 
    152 
    153 # Rename config files; postinstall script will copy them if necessary
    154 for cfgfile in ssh_config sshd_config
    155 do
    156 	mv $FAKE_ROOT/$sysconfdir/$cfgfile $FAKE_ROOT/$sysconfdir/$cfgfile.default
    157 done
    158 
    159 #
    160 # Generate lpp control files.
    161 #	working dir is $FAKE_ROOT but files are generated in dir above
    162 #	and moved into place just before creation of .bff
    163 #
    164 cd $FAKE_ROOT
    165 echo Generating LPP control files
    166 find . ! -name . -print >../openssh.al
    167 $inventory >../openssh.inventory
    168 
    169 cat <<EOD >../openssh.copyright
    170 This software is distributed under a BSD-style license.
    171 For the full text of the license, see /usr/lpp/openssh/LICENCE
    172 EOD
    173 
    174 #
    175 # openssh.size file allows filesystem expansion as required
    176 # generate list of directories containing files
    177 # then calculate disk usage for each directory and store in openssh.size
    178 #
    179 files=`find . -type f -print`
    180 dirs=`for file in $files; do dirname $file; done | sort -u`
    181 for dir in $dirs
    182 do
    183 	du $dir
    184 done > ../openssh.size
    185 
    186 #
    187 # Create postinstall script
    188 #
    189 cat <<EOF >>../openssh.post_i
    190 #!/bin/sh
    191 
    192 echo Creating configs from defaults if necessary.
    193 for cfgfile in ssh_config sshd_config
    194 do
    195 	if [ ! -f $sysconfdir/\$cfgfile ]
    196 	then
    197 		echo "Creating \$cfgfile from default"
    198 		cp $sysconfdir/\$cfgfile.default $sysconfdir/\$cfgfile
    199 	else
    200 		echo "\$cfgfile already exists."
    201 	fi
    202 done
    203 echo
    204 
    205 # Create PrivilegeSeparation user and group if not present
    206 echo Checking for PrivilegeSeparation user and group.
    207 if cut -f1 -d: /etc/group | egrep '^'$SSH_PRIVSEP_USER'\$' >/dev/null
    208 then
    209 	echo "PrivSep group $SSH_PRIVSEP_USER already exists."
    210 else
    211 	echo "Creating PrivSep group $SSH_PRIVSEP_USER."
    212 	mkgroup -A $SSH_PRIVSEP_USER
    213 fi
    214 
    215 # Create user if required
    216 if lsuser "$SSH_PRIVSEP_USER" >/dev/null
    217 then
    218 	echo "PrivSep user $SSH_PRIVSEP_USER already exists."
    219 else
    220 	echo "Creating PrivSep user $SSH_PRIVSEP_USER."
    221 	mkuser gecos='SSHD PrivSep User' login=false rlogin=false account_locked=true pgrp=$SSH_PRIVSEP_USER $SSH_PRIVSEP_USER
    222 fi
    223 
    224 if egrep '^[ \t]*UsePrivilegeSeparation[ \t]+no' $sysconfdir/sshd_config >/dev/null
    225 then
    226 	echo UsePrivilegeSeparation not enabled, privsep directory not required.
    227 else
    228 	# create chroot directory if required
    229 	if [ -d $PRIVSEP_PATH ]
    230 	then
    231 		echo "PrivSep chroot directory $PRIVSEP_PATH already exists."
    232 	else
    233 		echo "Creating PrivSep chroot directory $PRIVSEP_PATH."
    234 		mkdir $PRIVSEP_PATH
    235 		chown 0 $PRIVSEP_PATH
    236 		chgrp 0 $PRIVSEP_PATH
    237 		chmod 755 $PRIVSEP_PATH
    238 	fi
    239 fi
    240 echo
    241 
    242 # Generate keys unless they already exist
    243 echo Creating host keys if required.
    244 if [ -f "$sysconfdir/ssh_host_key" ] ; then
    245 	echo "$sysconfdir/ssh_host_key already exists, skipping."
    246 else
    247 	$bindir/ssh-keygen -t rsa1 -f $sysconfdir/ssh_host_key -N ""
    248 fi
    249 if [ -f $sysconfdir/ssh_host_dsa_key ] ; then
    250 	echo "$sysconfdir/ssh_host_dsa_key already exists, skipping."
    251 else
    252 	$bindir/ssh-keygen -t dsa -f $sysconfdir/ssh_host_dsa_key -N ""
    253 fi
    254 if [ -f $sysconfdir/ssh_host_rsa_key ] ; then
    255 	echo "$sysconfdir/ssh_host_rsa_key already exists, skipping."
    256 else
    257 	$bindir/ssh-keygen -t rsa -f $sysconfdir/ssh_host_rsa_key -N ""
    258 fi
    259 echo
    260 
    261 # Set startup command depending on SRC support
    262 if [ "$AIX_SRC" = "yes" ]
    263 then
    264 	echo Creating SRC sshd subsystem.
    265 	rmssys -s sshd 2>&1 >/dev/null
    266 	mkssys -s sshd -p "$sbindir/sshd" -a '-D' -u 0 -S -n 15 -f 9 -R -G tcpip
    267 	startupcmd="start $sbindir/sshd \\\"\\\$src_running\\\""
    268 	oldstartcmd="$sbindir/sshd"
    269 else
    270 	startupcmd="$sbindir/sshd"
    271 	oldstartcmd="start $sbindir/sshd \\\"$src_running\\\""
    272 fi
    273 
    274 # If migrating to or from SRC, change previous startup command
    275 # otherwise add to rc.tcpip
    276 if egrep "^\$oldstartcmd" /etc/rc.tcpip >/dev/null
    277 then
    278 	if sed "s|^\$oldstartcmd|\$startupcmd|g" /etc/rc.tcpip >/etc/rc.tcpip.new
    279 	then
    280 		chmod 0755 /etc/rc.tcpip.new
    281 		mv /etc/rc.tcpip /etc/rc.tcpip.old && \
    282 		mv /etc/rc.tcpip.new /etc/rc.tcpip
    283 	else
    284 		echo "Updating /etc/rc.tcpip failed, please check."
    285 	fi
    286 else
    287 	# Add to system startup if required
    288 	if grep "^\$startupcmd" /etc/rc.tcpip >/dev/null
    289 	then
    290 		echo "sshd found in rc.tcpip, not adding."
    291 	else
    292 		echo "Adding sshd to rc.tcpip"
    293 		echo >>/etc/rc.tcpip
    294 		echo "# Start sshd" >>/etc/rc.tcpip
    295 		echo "\$startupcmd" >>/etc/rc.tcpip
    296 	fi
    297 fi
    298 EOF
    299 
    300 #
    301 # Create liblpp.a and move control files into it
    302 #
    303 echo Creating liblpp.a
    304 (
    305 	cd ..
    306 	for i in openssh.al openssh.copyright openssh.inventory openssh.post_i openssh.size LICENCE README*
    307 	do
    308 		ar -r liblpp.a $i
    309 		rm $i
    310 	done
    311 )
    312 
    313 #
    314 # Create lpp_name
    315 #
    316 # This will end up looking something like:
    317 # 4 R I OpenSSH {
    318 # OpenSSH 3.0.2.1 1 N U en_US OpenSSH 3.0.2p1 Portable for AIX
    319 # [
    320 # %
    321 # /usr/local/bin 8073
    322 # /usr/local/etc 189
    323 # /usr/local/libexec 185
    324 # /usr/local/man/man1 145
    325 # /usr/local/man/man8 83
    326 # /usr/local/sbin 2105
    327 # /usr/local/share 3
    328 # %
    329 # ]
    330 # }
    331 
    332 echo Creating lpp_name
    333 cat <<EOF >../lpp_name
    334 4 R I $PKGNAME {
    335 $PKGNAME $BFFVERSION 1 N U en_US OpenSSH $VERSION Portable for AIX
    336 [
    337 %
    338 EOF
    339 
    340 for i in $bindir $sysconfdir $libexecdir $mandir/${mansubdir}1 $mandir/${mansubdir}8 $sbindir $datadir /usr/lpp/openssh
    341 do
    342 	# get size in 512 byte blocks
    343 	if [ -d $FAKE_ROOT/$i ]
    344 	then
    345 		size=`du $FAKE_ROOT/$i | awk '{print $1}'`
    346 		echo "$i $size" >>../lpp_name
    347 	fi
    348 done
    349 
    350 echo '%' >>../lpp_name
    351 echo ']' >>../lpp_name
    352 echo '}' >>../lpp_name
    353 
    354 #
    355 # Move pieces into place
    356 #
    357 mkdir -p usr/lpp/openssh
    358 mv ../liblpp.a usr/lpp/openssh
    359 mv ../lpp_name .
    360 
    361 #
    362 # Now invoke backup to create .bff file
    363 #	note: lpp_name needs to be the first file so we generate the
    364 #	file list on the fly and feed it to backup using -i
    365 #
    366 echo Creating $PKGNAME-$VERSION.bff with backup...
    367 rm -f $PKGNAME-$VERSION.bff
    368 (
    369 	echo "./lpp_name"
    370 	find . ! -name lpp_name -a ! -name . -print
    371 ) | backup  -i -q -f ../$PKGNAME-$VERSION.bff $filelist
    372 
    373 #
    374 # Move package into final location and clean up
    375 #
    376 mv ../$PKGNAME-$VERSION.bff $startdir
    377 cd $startdir
    378 rm -rf $objdir/$PKGDIR
    379 
    380 echo $0: done.
    381 
    382