You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
119 lines
2.4 KiB
119 lines
2.4 KiB
7 years ago
|
#!/bin/bash
|
||
|
|
# Author: Jan Vcelak <jvcelak@redhat.com>
|
||
|
|
|
||
|
|
set -e
|
||
|
|
|
||
|
|
# default options
|
||
|
|
|
||
|
|
CERTDB_DIR=/etc/openldap/certs
|
||
|
|
CERT_NAME="OpenLDAP Server"
|
||
|
|
PASSWORD_FILE=
|
||
|
|
HOSTNAME_FQDN="$(hostname --fqdn)"
|
||
|
|
ALT_NAMES=
|
||
|
|
ONCE=0
|
||
|
|
|
||
|
|
# internals
|
||
|
|
|
||
|
|
RANDOM_SOURCE=/dev/urandom
|
||
|
|
CERT_RANDOM_BYTES=256
|
||
|
|
CERT_KEY_TYPE=rsa
|
||
|
|
CERT_KEY_SIZE=1024
|
||
|
|
CERT_VALID_MONTHS=12
|
||
|
|
|
||
|
|
# parse arguments
|
||
|
|
|
||
|
|
usage() {
|
||
|
|
printf "usage: generate-server-cert.sh [-d certdb-dir] [-n cert-name]\n" >&2
|
||
|
|
printf " [-p password-file] [-h hostnames]\n" >&2
|
||
|
|
printf " [-a dns-alt-names] [-o]\n" >&2
|
||
|
|
exit 1
|
||
|
|
}
|
||
|
|
|
||
|
|
while getopts "d:n:p:h:a:o" opt; do
|
||
|
|
case "$opt" in
|
||
|
|
d)
|
||
|
|
CERTDB_DIR="$OPTARG"
|
||
|
|
;;
|
||
|
|
n)
|
||
|
|
CERT_NAME="$OPTARG"
|
||
|
|
;;
|
||
|
|
p)
|
||
|
|
PASSWORD_FILE="$OPTARG"
|
||
|
|
;;
|
||
|
|
h)
|
||
|
|
HOSTNAME_FQDN="$OPTARG"
|
||
|
|
;;
|
||
|
|
a)
|
||
|
|
ALT_NAMES="$OPTARG"
|
||
|
|
;;
|
||
|
|
o)
|
||
|
|
ONCE=1
|
||
|
|
;;
|
||
|
|
\?)
|
||
|
|
usage
|
||
|
|
;;
|
||
|
|
esac
|
||
|
|
done
|
||
|
|
|
||
|
|
[ "$OPTIND" -le "$#" ] && usage
|
||
|
|
|
||
|
|
# generated options
|
||
|
|
|
||
|
|
ONCE_FILE="$CERTDB_DIR/.slapd-leave"
|
||
|
|
PASSWORD_FILE="${PASSWORD_FILE:-${CERTDB_DIR}/password}"
|
||
|
|
ALT_NAMES="${ALT_NAMES:-${HOSTNAME_FQDN},localhost,localhost.localdomain}"
|
||
|
|
|
||
|
|
# verify target location
|
||
|
|
|
||
|
|
if [ "$ONCE" -eq 1 -a -f "$ONCE_FILE" ]; then
|
||
|
|
printf "Skipping certificate generating, '%s' exists.\n" "$ONCE_FILE" >&2
|
||
|
|
exit 0
|
||
|
|
fi
|
||
|
|
|
||
|
|
if ! certutil -d "$CERTDB_DIR" -U &>/dev/null; then
|
||
|
|
printf "Directory '%s' is not a valid certificate database.\n" "$CERTDB_DIR" >&2
|
||
|
|
exit 1
|
||
|
|
fi
|
||
|
|
|
||
|
|
printf "Creating new server certificate in '%s'.\n" "$CERTDB_DIR" >&2
|
||
|
|
|
||
|
|
if [ ! -r "$PASSWORD_FILE" ]; then
|
||
|
|
printf "Password file '%s' is not readable.\n" "$PASSWORD_FILE" >&2
|
||
|
|
exit 1
|
||
|
|
fi
|
||
|
|
|
||
|
|
if certutil -d "$CERTDB_DIR" -L -a -n "$CERT_NAME" &>/dev/null; then
|
||
|
|
printf "Certificate '%s' already exists in the certificate database.\n" "$CERT_NAME" >&2
|
||
|
|
exit 1
|
||
|
|
fi
|
||
|
|
|
||
|
|
# generate server certificate (self signed)
|
||
|
|
|
||
|
|
|
||
|
|
CERT_RANDOM=$(mktemp --tmpdir=/var/run/openldap)
|
||
|
|
dd if=$RANDOM_SOURCE bs=$CERT_RANDOM_BYTES count=1 of=$CERT_RANDOM &>/dev/null
|
||
|
|
|
||
|
|
certutil -d "$CERTDB_DIR" -f "$PASSWORD_FILE" -z "$CERT_RANDOM" \
|
||
|
|
-S -x -n "$CERT_NAME" \
|
||
|
|
-s "CN=$HOSTNAME_FQDN" \
|
||
|
|
-t TC,, \
|
||
|
|
-k $CERT_KEY_TYPE -g $CERT_KEY_SIZE \
|
||
|
|
-v $CERT_VALID_MONTHS \
|
||
|
|
-8 "$ALT_NAMES" \
|
||
|
|
&>/dev/null
|
||
|
|
|
||
|
|
rm -f $CERT_RANDOM
|
||
|
|
|
||
|
|
# tune permissions
|
||
|
|
|
||
|
|
if [ "$(id -u)" -eq 0 ]; then
|
||
|
|
chgrp ldap "$PASSWORD_FILE"
|
||
|
|
chmod g+r "$PASSWORD_FILE"
|
||
|
|
else
|
||
|
|
printf "WARNING: The server requires read permissions on the password file in order to\n" >&2
|
||
|
|
printf " load it's private key from the certificate database.\n" >&2
|
||
|
|
fi
|
||
|
|
|
||
|
|
touch "$ONCE_FILE"
|
||
|
|
exit 0
|