buildbff.sh revision 214979
1#!/bin/sh
2#
3# buildbff.sh: Create AIX SMIT-installable OpenSSH packages
4# $Id: buildbff.sh,v 1.12 2010/04/18 03:35:00 dtucker 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
22umask 022
23
24startdir=`pwd`
25
26perl -v >/dev/null || (echo perl required; exit 1)
27
28# Path to inventory.sh: same place as buildbff.sh
29if  echo $0 | egrep '^/'
30then
31	inventory=`dirname $0`/inventory.sh		# absolute path
32else
33	inventory=`pwd`/`dirname $0`/inventory.sh	# relative path
34fi
35
36#
37# We still support running from contrib/aix, but this is deprecated
38#
39if pwd | egrep 'contrib/aix$'
40then
41	echo "Changing directory to `pwd`/../.."
42	echo "Please run buildbff.sh from your build directory in future."
43	cd ../..
44	contribaix=1
45fi
46
47if [ ! -f Makefile ]
48then
49	echo "Makefile not found (did you run configure?)"
50	exit 1
51fi
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 ($FAKE_ROOT)
58#
59objdir=`pwd`
60PKGNAME=openssh
61PKGDIR=package
62
63#
64# Collect local configuration settings to override defaults
65#
66if [ -s ./config.local ]
67then
68	echo Reading local settings from config.local
69	. ./config.local
70fi
71
72#
73# Fill in some details from Makefile, like prefix and sysconfdir
74#	the eval also expands variables like sysconfdir=${prefix}/etc
75#	provided they are eval'ed in the correct order
76#
77for confvar in prefix exec_prefix bindir sbindir libexecdir datadir mandir mansubdir sysconfdir piddir srcdir
78do
79	eval $confvar=`grep "^$confvar=" $objdir/Makefile | cut -d = -f 2`
80done
81
82#
83# Collect values of privsep user and privsep path
84#	currently only found in config.h
85#
86for confvar in SSH_PRIVSEP_USER PRIVSEP_PATH
87do
88	eval $confvar=`awk '/#define[ \t]'$confvar'/{print $3}' $objdir/config.h`
89done
90
91# Set privsep defaults if not defined
92if [ -z "$SSH_PRIVSEP_USER" ]
93then
94	SSH_PRIVSEP_USER=sshd
95fi
96if [ -z "$PRIVSEP_PATH" ]
97then
98	PRIVSEP_PATH=/var/empty
99fi
100
101# Clean package build directory
102rm -rf $objdir/$PKGDIR
103FAKE_ROOT=$objdir/$PKGDIR/root
104mkdir -p $FAKE_ROOT
105
106# Start by faking root install
107echo "Faking root install..."
108cd $objdir
109make install-nokeys DESTDIR=$FAKE_ROOT
110
111if [ $? -gt 0 ]
112then
113	echo "Fake root install failed, stopping."
114	exit 1
115fi
116
117#
118# Copy informational files to include in package
119#
120cp $srcdir/LICENCE $objdir/$PKGDIR/
121cp $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#
127VERSION=`./ssh -V 2>&1 | cut -f 1 -d , | cut -f 2 -d _`
128MAJOR=`echo $VERSION | cut -f 1 -d p | cut -f 1 -d .`
129MINOR=`echo $VERSION | cut -f 1 -d p | cut -f 2 -d .`
130PATCH=`echo $VERSION | cut -f 1 -d p | cut -f 3 -d .`
131PORTABLE=`echo $VERSION | awk 'BEGIN{FS="p"}{print $2}'`
132[ "$PATCH" = "" ] && PATCH=0
133[ "$PORTABLE" = "" ] && PORTABLE=0
134BFFVERSION=`printf "%d.%d.%d.%d" $MAJOR $MINOR $PATCH $PORTABLE`
135
136echo "Building BFF for $PKGNAME $VERSION (package version $BFFVERSION)"
137
138#
139# Set ssh and sshd parameters as per config.local
140#
141if [ "${PERMIT_ROOT_LOGIN}" = no ]
142then
143	perl -p -i -e "s/#PermitRootLogin yes/PermitRootLogin no/" \
144		$FAKE_ROOT/${sysconfdir}/sshd_config
145fi
146if [ "${X11_FORWARDING}" = yes ]
147then
148	perl -p -i -e "s/#X11Forwarding no/X11Forwarding yes/" \
149		$FAKE_ROOT/${sysconfdir}/sshd_config
150fi
151
152
153# Rename config files; postinstall script will copy them if necessary
154for cfgfile in ssh_config sshd_config
155do
156	mv $FAKE_ROOT/$sysconfdir/$cfgfile $FAKE_ROOT/$sysconfdir/$cfgfile.default
157done
158
159# AIX 5.3 and newer have /dev/random and don't create ssh_prng_cmds
160if [ -f $FAKE_ROOT/$sysconfdir/ssh_prng_cmds ]
161then
162	mv $FAKE_ROOT/$sysconfdir/ssh_prng_cmds \
163		$FAKE_ROOT/$sysconfdir/ssh_prng_cmds.default
164fi
165
166#
167# Generate lpp control files.
168#	working dir is $FAKE_ROOT but files are generated in dir above
169#	and moved into place just before creation of .bff
170#
171cd $FAKE_ROOT
172echo Generating LPP control files
173find . ! -name . -print >../openssh.al
174$inventory >../openssh.inventory
175
176cat <<EOD >../openssh.copyright
177This software is distributed under a BSD-style license.
178For the full text of the license, see /usr/lpp/openssh/LICENCE
179EOD
180
181#
182# openssh.size file allows filesystem expansion as required
183# generate list of directories containing files
184# then calculate disk usage for each directory and store in openssh.size
185#
186files=`find . -type f -print`
187dirs=`for file in $files; do dirname $file; done | sort -u`
188for dir in $dirs
189do
190	du $dir
191done > ../openssh.size
192
193#
194# Create postinstall script
195#
196cat <<EOF >>../openssh.post_i
197#!/bin/sh
198
199echo Creating configs from defaults if necessary.
200for cfgfile in ssh_config sshd_config ssh_prng_cmds
201do
202	if [ ! -f $sysconfdir/\$cfgfile ]
203	then
204		echo "Creating \$cfgfile from default"
205		cp $sysconfdir/\$cfgfile.default $sysconfdir/\$cfgfile
206	else
207		echo "\$cfgfile already exists."
208	fi
209done
210echo
211
212# Create PrivilegeSeparation user and group if not present
213echo Checking for PrivilegeSeparation user and group.
214if cut -f1 -d: /etc/group | egrep '^'$SSH_PRIVSEP_USER'\$' >/dev/null
215then
216	echo "PrivSep group $SSH_PRIVSEP_USER already exists."
217else
218	echo "Creating PrivSep group $SSH_PRIVSEP_USER."
219	mkgroup -A $SSH_PRIVSEP_USER
220fi
221
222# Create user if required
223if lsuser "$SSH_PRIVSEP_USER" >/dev/null
224then
225	echo "PrivSep user $SSH_PRIVSEP_USER already exists."
226else
227	echo "Creating PrivSep user $SSH_PRIVSEP_USER."
228	mkuser gecos='SSHD PrivSep User' login=false rlogin=false account_locked=true pgrp=$SSH_PRIVSEP_USER $SSH_PRIVSEP_USER
229fi
230
231if egrep '^[ \t]*UsePrivilegeSeparation[ \t]+no' $sysconfdir/sshd_config >/dev/null
232then
233	echo UsePrivilegeSeparation not enabled, privsep directory not required.
234else
235	# create chroot directory if required
236	if [ -d $PRIVSEP_PATH ]
237	then
238		echo "PrivSep chroot directory $PRIVSEP_PATH already exists."
239	else
240		echo "Creating PrivSep chroot directory $PRIVSEP_PATH."
241		mkdir $PRIVSEP_PATH
242		chown 0 $PRIVSEP_PATH
243		chgrp 0 $PRIVSEP_PATH
244		chmod 755 $PRIVSEP_PATH
245	fi
246fi
247echo
248
249# Generate keys unless they already exist
250echo Creating host keys if required.
251if [ -f "$sysconfdir/ssh_host_key" ] ; then
252	echo "$sysconfdir/ssh_host_key already exists, skipping."
253else
254	$bindir/ssh-keygen -t rsa1 -f $sysconfdir/ssh_host_key -N ""
255fi
256if [ -f $sysconfdir/ssh_host_dsa_key ] ; then
257	echo "$sysconfdir/ssh_host_dsa_key already exists, skipping."
258else
259	$bindir/ssh-keygen -t dsa -f $sysconfdir/ssh_host_dsa_key -N ""
260fi
261if [ -f $sysconfdir/ssh_host_rsa_key ] ; then
262	echo "$sysconfdir/ssh_host_rsa_key already exists, skipping."
263else
264	$bindir/ssh-keygen -t rsa -f $sysconfdir/ssh_host_rsa_key -N ""
265fi
266echo
267
268# Set startup command depending on SRC support
269if [ "$AIX_SRC" = "yes" ]
270then
271	echo Creating SRC sshd subsystem.
272	rmssys -s sshd 2>&1 >/dev/null
273	mkssys -s sshd -p "$sbindir/sshd" -a '-D' -u 0 -S -n 15 -f 9 -R -G tcpip
274	startupcmd="start $sbindir/sshd \\\"\\\$src_running\\\""
275	oldstartcmd="$sbindir/sshd"
276else
277	startupcmd="$sbindir/sshd"
278	oldstartcmd="start $sbindir/sshd \\\"$src_running\\\""
279fi
280
281# If migrating to or from SRC, change previous startup command
282# otherwise add to rc.tcpip
283if egrep "^\$oldstartcmd" /etc/rc.tcpip >/dev/null
284then
285	if sed "s|^\$oldstartcmd|\$startupcmd|g" /etc/rc.tcpip >/etc/rc.tcpip.new
286	then
287		chmod 0755 /etc/rc.tcpip.new
288		mv /etc/rc.tcpip /etc/rc.tcpip.old && \
289		mv /etc/rc.tcpip.new /etc/rc.tcpip
290	else
291		echo "Updating /etc/rc.tcpip failed, please check."
292	fi
293else
294	# Add to system startup if required
295	if grep "^\$startupcmd" /etc/rc.tcpip >/dev/null
296	then
297		echo "sshd found in rc.tcpip, not adding."
298	else
299		echo "Adding sshd to rc.tcpip"
300		echo >>/etc/rc.tcpip
301		echo "# Start sshd" >>/etc/rc.tcpip
302		echo "\$startupcmd" >>/etc/rc.tcpip
303	fi
304fi
305EOF
306
307#
308# Create liblpp.a and move control files into it
309#
310echo Creating liblpp.a
311(
312	cd ..
313	for i in openssh.al openssh.copyright openssh.inventory openssh.post_i openssh.size LICENCE README*
314	do
315		ar -r liblpp.a $i
316		rm $i
317	done
318)
319
320#
321# Create lpp_name
322#
323# This will end up looking something like:
324# 4 R I OpenSSH {
325# OpenSSH 3.0.2.1 1 N U en_US OpenSSH 3.0.2p1 Portable for AIX
326# [
327# %
328# /usr/local/bin 8073
329# /usr/local/etc 189
330# /usr/local/libexec 185
331# /usr/local/man/man1 145
332# /usr/local/man/man8 83
333# /usr/local/sbin 2105
334# /usr/local/share 3
335# %
336# ]
337# }
338
339echo Creating lpp_name
340cat <<EOF >../lpp_name
3414 R I $PKGNAME {
342$PKGNAME $BFFVERSION 1 N U en_US OpenSSH $VERSION Portable for AIX
343[
344%
345EOF
346
347for i in $bindir $sysconfdir $libexecdir $mandir/${mansubdir}1 $mandir/${mansubdir}8 $sbindir $datadir /usr/lpp/openssh
348do
349	# get size in 512 byte blocks
350	if [ -d $FAKE_ROOT/$i ]
351	then
352		size=`du $FAKE_ROOT/$i | awk '{print $1}'`
353		echo "$i $size" >>../lpp_name
354	fi
355done
356
357echo '%' >>../lpp_name
358echo ']' >>../lpp_name
359echo '}' >>../lpp_name
360
361#
362# Move pieces into place
363#
364mkdir -p usr/lpp/openssh
365mv ../liblpp.a usr/lpp/openssh
366mv ../lpp_name .
367
368#
369# Now invoke backup to create .bff file
370#	note: lpp_name needs to be the first file so we generate the
371#	file list on the fly and feed it to backup using -i
372#
373echo Creating $PKGNAME-$VERSION.bff with backup...
374rm -f $PKGNAME-$VERSION.bff
375(
376	echo "./lpp_name"
377	find . ! -name lpp_name -a ! -name . -print
378) | backup  -i -q -f ../$PKGNAME-$VERSION.bff $filelist
379
380#
381# Move package into final location and clean up
382#
383mv ../$PKGNAME-$VERSION.bff $startdir
384cd $startdir
385rm -rf $objdir/$PKGDIR
386
387echo $0: done.
388
389