# Copyright (c) 2008, NLnet Labs. All rights reserved.
#
# This software is open source.
-#
+#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
-#
+#
# Redistributions of source code must retain the above copyright notice,
# this list of conditions and the following disclaimer.
-#
+#
# Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions and the following disclaimer in the documentation
# and/or other materials provided with the distribution.
-#
+#
# Neither the name of the NLNET LABS nor the names of its contributors may
# be used to endorse or promote products derived from this software without
# specific prior written permission.
-#
+#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# base name for unbound-control keys
CTL_BASE=unbound_control
+# flag to recreate generated certificates
+RECREATE=0
+
# we want -rw-r----- access (say you run this as root: grp=yes (server), all=no).
umask 0027
# end of options
-# functions:
-error ( ) {
- echo "$0 fatal error: $1"
- exit 1
+set -eu
+
+cleanup() {
+ echo "removing artifacts"
+
+ rm -rf \
+ server.cnf \
+ client.cnf \
+ "${SVR_BASE}_trust.pem" \
+ "${CTL_BASE}_trust.pem" \
+ "${SVR_BASE}_trust.srl"
}
-# check arguments:
-while test $# -ne 0; do
- case $1 in
- -d)
- if test $# -eq 1; then error "need argument for -d"; fi
- DESTDIR="$2"
- shift
- ;;
- *)
- echo "unbound-control-setup.sh - setup SSL keys for unbound-control"
- echo " -d dir use directory to store keys and certificates."
- echo " default: $DESTDIR"
- echo "please run this command using the same user id that the "
- echo "unbound daemon uses, it needs read privileges."
- exit 1
- ;;
- esac
- shift
+fatal() {
+ printf "fatal error: $*\n" >/dev/stderr
+ exit 1
+}
+
+usage() {
+ cat <<EOF
+usage: $0 OPTIONS
+OPTIONS
+-d <dir> used directory to store keys and certificates (default: $DESTDIR)
+-h show help notice
+-r recreate certificates
+EOF
+}
+
+OPTIND=1
+while getopts 'd:hr' arg; do
+ case "$arg" in
+ d) DESTDIR="$OPTARG" ;;
+ h) usage; exit 0 ;;
+ r) RECREATE=1 ;;
+ ?) fatal "'$arg' unknown option" ;;
+ esac
done
+shift $((OPTIND - 1))
+
-# go!:
echo "setup in directory $DESTDIR"
-cd "$DESTDIR" || error "could not cd to $DESTDIR"
-
-# create certificate keys; do not recreate if they already exist.
-if test -f $SVR_BASE.key; then
- echo "$SVR_BASE.key exists"
-else
- echo "generating $SVR_BASE.key"
- openssl genrsa -out $SVR_BASE.key $BITS || error "could not genrsa"
+cd "$DESTDIR"
+
+trap cleanup SIGINT
+
+# ===
+# Generate server certificate
+# ===
+
+# generate private key; do no recreate it if they already exist.
+if [ ! -f "$SVR_BASE.key" ]; then
+ openssl genrsa -out "$SVR_BASE.key" "$BITS"
fi
-if test -f $CTL_BASE.key; then
- echo "$CTL_BASE.key exists"
-else
- echo "generating $CTL_BASE.key"
- openssl genrsa -out $CTL_BASE.key $BITS || error "could not genrsa"
+
+cat >server.cnf <<EOF
+default_bits=$BITS
+default_md=$HASH
+prompt=no
+distinguished_name=req_distinguished_name
+[req_distinguished_name]
+commonName=$SERVERNAME
+EOF
+
+[ -f server.cnf ] || fatal "cannot create openssl configuration"
+
+if [ ! -f "$SVR_BASE.pem" -o $RECREATE -eq 1 ]; then
+ openssl req \
+ -new -x509 \
+ -key "$SVR_BASE.key" \
+ -config server.cnf \
+ -days "$DAYS" \
+ -out "$SVR_BASE.pem"
+
+ [ ! -f "SVR_BASE.pem" ] || fatal "cannot create server certificate"
fi
-# create self-signed cert for server
-echo "[req]" > request.cfg
-echo "default_bits=$BITS" >> request.cfg
-echo "default_md=$HASH" >> request.cfg
-echo "prompt=no" >> request.cfg
-echo "distinguished_name=req_distinguished_name" >> request.cfg
-echo "" >> request.cfg
-echo "[req_distinguished_name]" >> request.cfg
-echo "commonName=$SERVERNAME" >> request.cfg
+# ===
+# Generate client certificate
+# ===
-test -f request.cfg || error "could not create request.cfg"
+# generate private key; do no recreate it if they already exist.
+if [ ! -f "$CTL_BASE.key" ]; then
+ openssl genrsa -out "$CTL_BASE.key" "$BITS"
+fi
+
+cat >client.cnf <<EOF
+[req]
+default_bits=$BITS
+default_md=$HASH
+prompt=no
+distinguished_name=req_distinguished_name
+[req_distinguished_name]
+commonName=$CLIENTNAME
+EOF
+
+[ -f client.cnf ] || fatal "cannot create openssl configuration"
+
+if [ ! -f "$CTL_BASE.pem" -o $RECREATE -eq 1 ]; then
+ openssl x509 \
+ -addtrust serverAuth \
+ -in "$SVR_BASE.pem" \
+ -out "${SVR_BASE}_trust.pem"
+
+ openssl req \
+ -new \
+ -config client.cnf \
+ -key "$CTL_BASE.key" \
+ | openssl x509 \
+ -req \
+ -days "$DAYS" \
+ -CA "${SVR_BASE}_trust.pem" \
+ -CAkey "$SVR_BASE.key" \
+ -CAcreateserial \
+ -$HASH \
+ -out "$CTL_BASE.pem"
+
+ [ ! -f "CTL_BASE.pem" ] || fatal "cannot create signed client certificate"
+fi
+
+# remove unused permissions
+chmod o-rw \
+ "$SVR_BASE.pem" \
+ "$SVR_BASE.key" \
+ "$CTL_BASE.pem" \
+ "$CTL_BASE.key"
+
+cleanup
+
+echo "Setup success. Certificates created. Enable in unbound.conf file to use"
-echo "create $SVR_BASE.pem (self signed certificate)"
-openssl req -key $SVR_BASE.key -config request.cfg -new -x509 -days $DAYS -out $SVR_BASE.pem || error "could not create $SVR_BASE.pem"
-# create trusted usage pem
-openssl x509 -in $SVR_BASE.pem -addtrust serverAuth -out $SVR_BASE"_trust.pem"
-
-# create client request and sign it, piped
-echo "[req]" > request.cfg
-echo "default_bits=$BITS" >> request.cfg
-echo "default_md=$HASH" >> request.cfg
-echo "prompt=no" >> request.cfg
-echo "distinguished_name=req_distinguished_name" >> request.cfg
-echo "" >> request.cfg
-echo "[req_distinguished_name]" >> request.cfg
-echo "commonName=$CLIENTNAME" >> request.cfg
-
-test -f request.cfg || error "could not create request.cfg"
-
-echo "create $CTL_BASE.pem (signed client certificate)"
-openssl req -key $CTL_BASE.key -config request.cfg -new | openssl x509 -req -days $DAYS -CA $SVR_BASE"_trust.pem" -CAkey $SVR_BASE.key -CAcreateserial -$HASH -out $CTL_BASE.pem
-test -f $CTL_BASE.pem || error "could not create $CTL_BASE.pem"
# create trusted usage pem
# openssl x509 -in $CTL_BASE.pem -addtrust clientAuth -out $CTL_BASE"_trust.pem"
# echo "empty password is used, simply click OK on the password dialog box."
# openssl pkcs12 -export -in $CTL_BASE"_trust.pem" -inkey $CTL_BASE.key -name "unbound remote control client cert" -out $CTL_BASE"_browser.pfx" -password "pass:" || error "could not create browser certificate"
-# set desired permissions
-chmod 0640 $SVR_BASE.pem $SVR_BASE.key $CTL_BASE.pem $CTL_BASE.key
-
-# remove crap
-rm -f request.cfg
-rm -f $CTL_BASE"_trust.pem" $SVR_BASE"_trust.pem" $SVR_BASE"_trust.srl"
-
-echo "Setup success. Certificates created. Enable in unbound.conf file to use"
-
-exit 0
projects / thirdparty / unbound.git / commitdiff
