openssh converted to the new-style buildpkg environment
the script files in meta are unchanged from the last commit in the old tree (now openssh.old)
This commit is contained in:
Tom G. Christensen
tgc
169
openssh/meta/postinstall
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169
openssh/meta/postinstall
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INSTALLF=/usr/sbin/installf
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REMOVEF=/usr/sbin/removef
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GROUPADD=/usr/sbin/groupadd
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USERADD=/usr/sbin/useradd
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GREP=/usr/bin/grep
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CUT=/usr/bin/cut
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CAT=/usr/bin/cat
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CONFDIR=${BASEDIR}/etc
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DESTBIN=${BASEDIR}/bin
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CHECKCONF=0
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SSHID=199
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# We provide default config-files, check and see if they should be installed.
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if [ ! -f "${CONFDIR}/ssh_config" ] ; then
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cp -p ${CONFDIR}/ssh_config.default ${CONFDIR}/ssh_config
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echo "Installing new ssh_config"
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else
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echo "Keeping existing ssh_config"
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CHECKCONF=1
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fi
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if [ ! -f "${CONFDIR}/sshd_config" ] ; then
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cp -p ${CONFDIR}/sshd_config.default ${CONFDIR}/sshd_config
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echo "Installing new sshd_config"
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else
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echo "Keeping existing sshd_config"
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CHECKCONF=1
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fi
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if [ -f "${CONFDIR}/ssh_prng_cmds" ] ; then
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rm -f ${CONFDIR}/ssh_prng_cmds.default ${CONFDIR}/ssh_prng_cmds
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echo "Removing unneeded ssh_prng_cmds file"
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fi
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if [ ! -f "${CONFDIR}/moduli" ] ; then
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if [ -f "${CONFDIR}/primes" ]; then
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echo "Keeping existing primes but renaming it to moduli"
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mv ${CONFDIR}/primes ${CONFDIR}/moduli
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else
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echo "Installing new moduli (formerly known as primes)"
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cp -p ${CONFDIR}/moduli.default ${CONFDIR}/moduli
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fi
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else
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echo "Keeping existing moduli"
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fi
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# We will try to preserve any existing keys
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if [ -f "${CONFDIR}/ssh_host_key" ] ; then
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echo "Keeping existing ssh_host_key"
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else
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${DESTBIN}/ssh-keygen -t rsa1 -f ${CONFDIR}/ssh_host_key -N ""
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fi
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if [ -f "${CONFDIR}/ssh_host_dsa_key" ] ; then
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echo "Keeping existing ssh_host_dsa_key"
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else
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${DESTBIN}/ssh-keygen -t dsa -f ${CONFDIR}/ssh_host_dsa_key -N ""
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fi
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if [ -f "${CONFDIR}/ssh_host_rsa_key" ] ; then
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echo "Keeping existing ssh_host_rsa_key"
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else
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${DESTBIN}/ssh-keygen -t rsa -f ${CONFDIR}/ssh_host_rsa_key -N ""
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fi
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# Right, now move the init script into place and make some symlinks
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# for automatic startup.
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# start by removing knowledge of sshd.init from the pkgdb
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${REMOVEF} ${PKGINST} /usr/local/etc/sshd.init 2>&1 > /dev/null # suppress output
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# confirm the changes to the pkgdb (removef -f)
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${REMOVEF} -f ${PKGINST}
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# Now that the holds from the pkgdb are gone, move the script to it's final destination.
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mv /usr/local/etc/sshd.init /etc/init.d/sshd.local
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# Install new *symlinks*
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ln -s /etc/init.d/sshd.local /etc/rc0.d/K30sshd.local
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ln -s /etc/init.d/sshd.local /etc/rc1.d/K30sshd.local
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ln -s /etc/init.d/sshd.local /etc/rc2.d/S78sshd.local
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ln -s /etc/init.d/sshd.local /etc/rcS.d/K30sshd.local
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# Then installf the new pathnames
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${INSTALLF} ${PKGINST} /etc/init.d/sshd.local f 744 root sys
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${INSTALLF} ${PKGINST} /etc/rc2.d/S78sshd.local=/etc/init.d/sshd.local s
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${INSTALLF} ${PKGINST} /etc/rc1.d/K30sshd.local=/etc/init.d/sshd.local s
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${INSTALLF} ${PKGINST} /etc/rc0.d/K30sshd.local=/etc/init.d/sshd.local s
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${INSTALLF} ${PKGINST} /etc/rcS.d/K30sshd.local=/etc/init.d/sshd.local s
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# confirm the changes to the pkgdb (installf -f)
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${INSTALLF} -f ${PKGINST}
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#uh yeah, better make sure that /var/run exists aswell (for pid files)
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echo "Checking to see if /var/run exists... \c"
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if [ ! -d /var/run ]; then
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echo "no, creating..."
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mkdir -p /var/run;
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chown root:sys /var/run;
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chmod 755 /var/run
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else
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echo "yes"
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fi
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# New in OpenSSH 3.3+ is Privilege seperation, it requires an empty dir to chroot into
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# and an unprivileged user to run as.
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echo "Checking to see if /var/empty/sshd exists... \c"
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if [ ! -d /var/empty ]; then
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echo "no, creating..."
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mkdir -p /var/empty/sshd
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chown root:sys /var/empty/sshd
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chmod 755 /var/empty/sshd
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else
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echo "yes"
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fi
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# Attempt to create a group & user for sshd
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echo "Checking for sshd group... \c"
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temp=`$GREP sshd /etc/group`
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if [ -n "$temp" ]; then
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echo "yes"
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gid=`echo $temp|$CUT -d : -f 3`
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if [ "$gid" != "$SSHID" ]; then
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echo " Group sshd found but gid does not match with the preferred ($SSHID)"
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echo " I will continue anyway, but please check up on this afterwards!"
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fi
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else
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echo "no"
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echo " Attempting to create sshd group (gid=$SSHID)"
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$GROUPADD -g $SSHID sshd
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gid=$SSHID
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fi
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echo "Checking for sshd user... \c"
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temp=`$GREP sshd /etc/passwd`
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if [ -n "$temp" ]; then
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echo "yes"
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uid=`echo $temp|$CUT -d : -f 3`
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ugid=`echo $temp|$CUT -d : -f 4`
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if [ "$uid" != "$SSHID" ]; then
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echo " User sshd found but uid doesn't match with the preferred ($SSHID)"
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echo " I will continue anyway, but please check up on this afterwards!"
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fi
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if [ "$ugid" != "$gid" ]; then
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echo " User sshd doesn't have group sshd!"
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echo " I will continue anyway, but this is a critical error that must be resolved"
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echo " before privilege seperation can be enabled!"
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fi
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else
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echo "no"
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echo " Attempting to create sshd user (uid=$SSHID, gid=$SSHID)"
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$USERADD -u $SSHID -g $SSHID -c "sshd privsep" -d /var/empty/sshd -s /bin/false sshd
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fi
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# FIXME Other stuff about the user/group situation should probably be checked
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# FIXME like the homedir and shell of the sshd user
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# Notice how the ssh host keys are not associated with the SBossh package.
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# I find that convenient as I'm sure that they don't disappear if someone
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# uninstalls the package.
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# This is nice because we can then avoid the "hostid changed" warnings.
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# The config files will not be associated with the package either, this way when
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# installing a newer version the config files will be in place and will be preserved
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# If original config-files where preserved, urge the operator
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# to check the new default files for hints on recommended configuration
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if [ "$CHECKCONF" = "1" ] ; then
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echo "#######"
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echo ""
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echo "Please check the *.default config files for configuration hints"
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echo "and update your existing config files accordingly."
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fi
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