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#!/bin/sh
# $Id$
# helper script for creating ssl certificates
while [ $# -gt 0 ]; do
case $1 in
-g) group=$2; shift 2;;
-b) bundle="true"; shift;;
*) args=( ${args[@]:-} $1 ); shift;;
esac
done
pkg=${args[0]} # name of the package
num=${args[1]} # number of packages installed
srv=${args[2]} # name of the service
if [ -z "$pkg" ] || [ -z "$num" ] || [ -z "$srv" ]; then
echo "usage: $0 [-g <group>] [-b] <pkg name> <num installed> <service>" 1>&2
exit 1
fi
if [ ! -f "/etc/pki/tls/private/$srv.pem" ]; then
# default values
host=$(hostname)
KEY_LENGTH=2048
CERT_DAYS=365
EMAIL_ADDRESS=root@$host
COMMON_NAME=$host
ORGANISATIONAL_UNIT_NAME="default $srv cert for $host"
# source configuration
if [ -f /etc/sysconfig/ssl ]; then
. /etc/sysconfig/ssl
fi
conffile=/tmp/$$
keyfile=/etc/pki/tls/private/$srv.pem
if [ "$bundle" = "true" ]; then
certfile=$keyfile
else
certfile=/etc/pki/tls/certs/$srv.pem
fi
# create a temporary configuration file
cat > $conffile <<EOF
default_bits = $KEY_LENGTH
encrypt_key = no
prompt = no
distinguished_name = req_dn
req_extensions = req_ext
[ req_dn ]
commonName = $COMMON_NAME
organizationalUnitName = $ORGANISATIONAL_UNIT_NAME
emailAddress = $EMAIL_ADDRESS
[ req_ext ]
basicConstraints = CA:FALSE
EOF
# generate certificates
openssl req -new -x509 -days "$CERT_DAYS" \
-config "$conffile" \
-keyout "$keyfile" \
-out "$certfile" >/dev/null
# enforce strict perms on key
if [ -n "$group" ]; then
chmod 640 "$keyfile"
chgrp "$group" "$keyfile"
else
chmod 600 "$keyfile"
fi
fi
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