Subversion Repositories configs

#!/bin/bash
#
# sshd          Start up the OpenSSH server daemon
#
# chkconfig: 2345 55 25
# description: SSH is a protocol for secure remote shell access. \
#              This service starts up the OpenSSH server daemon.
#
# processname: sshd
# config: /etc/ssh/ssh_host_key
# config: /etc/ssh/ssh_host_key.pub
# config: /etc/ssh/ssh_random_seed
# config: /etc/ssh/sshd_config
# pidfile: /var/run/sshd.pid

### BEGIN INIT INFO
# Provides: sshd
# Required-Start: $local_fs $network $syslog
# Required-Stop: $local_fs $syslog
# Should-Start: $syslog
# Should-Stop: $network $syslog
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: Start up the OpenSSH server daemon
# Description:       SSH is a protocol for secure remote shell access.
#                    This service starts up the OpenSSH server daemon.
### END INIT INFO

# source function library
. /etc/rc.d/init.d/functions

# pull in sysconfig settings
[ -f /etc/sysconfig/sshd ] && . /etc/sysconfig/sshd

RETVAL=0
prog="sshd"
lockfile=/var/lock/subsys/$prog

# Some functions to make the below more readable
KEYGEN=/usr/bin/ssh-keygen
SSHD=/usr/sbin/sshd
RSA1_KEY=/etc/ssh/ssh_host_key
RSA_KEY=/etc/ssh/ssh_host_rsa_key
DSA_KEY=/etc/ssh/ssh_host_dsa_key
PID_FILE=/var/run/sshd.pid

runlevel=$(set -- $(runlevel); eval "echo \$$#" )

fips_enabled() {
        if [ -r /proc/sys/crypto/fips_enabled ]; then
                cat /proc/sys/crypto/fips_enabled
        else
                echo 0
        fi
}

do_rsa1_keygen() {
        if [ ! -s $RSA1_KEY -a `fips_enabled` -eq 0 ]; then
                echo -n $"Generating SSH1 RSA host key: "
                rm -f $RSA1_KEY
                if test ! -f $RSA1_KEY && $KEYGEN -q -t rsa1 -f $RSA1_KEY -C '' -N '' >&/dev/null; then
                        chmod 600 $RSA1_KEY
                        chmod 644 $RSA1_KEY.pub
                        if [ -x /sbin/restorecon ]; then
                            /sbin/restorecon $RSA1_KEY.pub
                        fi
                        success $"RSA1 key generation"
                        echo
                else
                        failure $"RSA1 key generation"
                        echo
                        exit 1
                fi
        fi
}

do_rsa_keygen() {
        if [ ! -s $RSA_KEY ]; then
                echo -n $"Generating SSH2 RSA host key: "
                rm -f $RSA_KEY
                if test ! -f $RSA_KEY && $KEYGEN -q -t rsa -f $RSA_KEY -C '' -N '' >&/dev/null; then
                        chmod 600 $RSA_KEY
                        chmod 644 $RSA_KEY.pub
                        if [ -x /sbin/restorecon ]; then
                            /sbin/restorecon $RSA_KEY.pub
                        fi
                        success $"RSA key generation"
                        echo
                else
                        failure $"RSA key generation"
                        echo
                        exit 1
                fi
        fi
}

do_dsa_keygen() {
        if [ ! -s $DSA_KEY -a `fips_enabled` -eq 0 ]; then
                echo -n $"Generating SSH2 DSA host key: "
                rm -f $DSA_KEY
                if test ! -f $DSA_KEY && $KEYGEN -q -t dsa -f $DSA_KEY -C '' -N '' >&/dev/null; then
                        chmod 600 $DSA_KEY
                        chmod 644 $DSA_KEY.pub
                        if [ -x /sbin/restorecon ]; then
                            /sbin/restorecon $DSA_KEY.pub
                        fi
                        success $"DSA key generation"
                        echo
                else
                        failure $"DSA key generation"
                        echo
                        exit 1
                fi
        fi
}

do_restart_sanity_check()
{
        $SSHD -t
        RETVAL=$?
        if [ $RETVAL -ne  0 ]; then
                failure $"Configuration file or keys are invalid"
                echo
        fi
}

start()
{
        [ -x $SSHD ] || exit 5
        [ -f /etc/ssh/sshd_config ] || exit 6
        # Create keys if necessary
        if [ "x${AUTOCREATE_SERVER_KEYS}" != xNO ]; then
                do_rsa_keygen
                if [ "x${AUTOCREATE_SERVER_KEYS}" != xRSAONLY ]; then
                        do_rsa1_keygen
                        do_dsa_keygen
                fi
        fi

        echo -n $"Starting $prog: "
        $SSHD $OPTIONS && success || failure
        RETVAL=$?
        [ $RETVAL -eq 0 ] && touch $lockfile
        echo
        return $RETVAL
}

stop()
{
        echo -n $"Stopping $prog: "
        killproc -p $PID_FILE $SSHD
        RETVAL=$?
        # if we are in halt or reboot runlevel kill all running sessions
        # so the TCP connections are closed cleanly
        if [ "x$runlevel" = x0 -o "x$runlevel" = x6 ] ; then
            trap '' TERM
            killall $prog 2>/dev/null
            trap TERM
        fi
        [ $RETVAL -eq 0 ] && rm -f $lockfile
        echo
}

reload()
{
        echo -n $"Reloading $prog: "
        killproc -p $PID_FILE $SSHD -HUP
        RETVAL=$?
        echo
}

restart() {
        stop
        start
}

force_reload() {
        restart
}

rh_status() {
        status -p $PID_FILE openssh-daemon
}

rh_status_q() {
        rh_status >/dev/null 2>&1
}

case "$1" in
        start)
                rh_status_q && exit 0
                start
                ;;
        stop)
                if ! rh_status_q; then
                        rm -f $lockfile
                        exit 0
                fi
                stop
                ;;
        restart)
                restart
                ;;
        reload)
                rh_status_q || exit 7
                reload
                ;;
        force-reload)
                force_reload
                ;;
        condrestart|try-restart)
                rh_status_q || exit 0
                if [ -f $lockfile ] ; then
                        do_restart_sanity_check
                        if [ $RETVAL -eq 0 ] ; then
                                stop
                                # avoid race
                                sleep 3
                                start
                        else
                                RETVAL=6
                        fi
                fi
                ;;
        status)
                rh_status
                RETVAL=$?
                if [ $RETVAL -eq 3 -a -f $lockfile ] ; then
                        RETVAL=2
                fi
                ;;
        *)
                echo $"Usage: $0 {start|stop|restart|reload|force-reload|condrestart|try-restart|status}"
                RETVAL=2
esac
exit $RETVAL