161 lines
5.4 KiB
Bash
Executable File
161 lines
5.4 KiB
Bash
Executable File
#!/bin/sh
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#
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# unbound-control-setup.sh - set up SSL certificates for unbound-control
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#
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# Copyright (c) 2008, NLnet Labs. All rights reserved.
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#
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# This software is open source.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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#
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# Redistributions of source code must retain the above copyright notice,
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# this list of conditions and the following disclaimer.
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#
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# Redistributions in binary form must reproduce the above copyright notice,
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# this list of conditions and the following disclaimer in the documentation
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# and/or other materials provided with the distribution.
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#
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# Neither the name of the NLNET LABS nor the names of its contributors may
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# be used to endorse or promote products derived from this software without
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# specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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# TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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# settings:
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# directory for files
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DESTDIR=/var/unbound
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# issuer and subject name for certificates
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SERVERNAME=unbound
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CLIENTNAME=unbound-control
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# validity period for certificates
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DAYS=7200
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# size of keys in bits
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BITS=3072
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# hash algorithm
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HASH=sha256
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# base name for unbound server keys
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SVR_BASE=unbound_server
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# base name for unbound-control keys
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CTL_BASE=unbound_control
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# we want -rw-r----- access (say you run this as root: grp=yes (server), all=no).
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umask 0027
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# end of options
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# functions:
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error ( ) {
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echo "$0 fatal error: $1"
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exit 1
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}
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# check arguments:
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while test $# -ne 0; do
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case $1 in
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-d)
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if test $# -eq 1; then error "need argument for -d"; fi
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DESTDIR="$2"
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shift
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;;
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*)
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echo "unbound-control-setup.sh - setup SSL keys for unbound-control"
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echo " -d dir use directory to store keys and certificates."
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echo " default: $DESTDIR"
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echo "please run this command using the same user id that the "
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echo "unbound daemon uses, it needs read privileges."
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exit 1
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;;
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esac
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shift
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done
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# go!:
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echo "setup in directory $DESTDIR"
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cd "$DESTDIR" || error "could not cd to $DESTDIR"
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# create certificate keys; do not recreate if they already exist.
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if test -f $SVR_BASE.key; then
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echo "$SVR_BASE.key exists"
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else
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echo "generating $SVR_BASE.key"
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openssl genrsa -out $SVR_BASE.key $BITS || error "could not genrsa"
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fi
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if test -f $CTL_BASE.key; then
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echo "$CTL_BASE.key exists"
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else
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echo "generating $CTL_BASE.key"
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openssl genrsa -out $CTL_BASE.key $BITS || error "could not genrsa"
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fi
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# create self-signed cert for server
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echo "[req]" > request.cfg
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echo "default_bits=$BITS" >> request.cfg
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echo "default_md=$HASH" >> request.cfg
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echo "prompt=no" >> request.cfg
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echo "distinguished_name=req_distinguished_name" >> request.cfg
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echo "" >> request.cfg
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echo "[req_distinguished_name]" >> request.cfg
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echo "commonName=$SERVERNAME" >> request.cfg
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test -f request.cfg || error "could not create request.cfg"
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echo "create $SVR_BASE.pem (self signed certificate)"
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openssl req -key $SVR_BASE.key -config request.cfg -new -x509 -days $DAYS -out $SVR_BASE.pem || error "could not create $SVR_BASE.pem"
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# create trusted usage pem
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openssl x509 -in $SVR_BASE.pem -addtrust serverAuth -out $SVR_BASE"_trust.pem"
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# create client request and sign it, piped
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echo "[req]" > request.cfg
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echo "default_bits=$BITS" >> request.cfg
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echo "default_md=$HASH" >> request.cfg
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echo "prompt=no" >> request.cfg
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echo "distinguished_name=req_distinguished_name" >> request.cfg
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echo "" >> request.cfg
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echo "[req_distinguished_name]" >> request.cfg
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echo "commonName=$CLIENTNAME" >> request.cfg
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test -f request.cfg || error "could not create request.cfg"
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echo "create $CTL_BASE.pem (signed client certificate)"
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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
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test -f $CTL_BASE.pem || error "could not create $CTL_BASE.pem"
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# create trusted usage pem
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# openssl x509 -in $CTL_BASE.pem -addtrust clientAuth -out $CTL_BASE"_trust.pem"
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# see details with openssl x509 -noout -text < $SVR_BASE.pem
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# echo "create $CTL_BASE""_browser.pfx (web client certificate)"
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# echo "create webbrowser PKCS#12 .PFX certificate file. In Firefox import in:"
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# echo "preferences - advanced - encryption - view certificates - your certs"
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# echo "empty password is used, simply click OK on the password dialog box."
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# 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"
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# set desired permissions
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chmod 0640 $SVR_BASE.pem $SVR_BASE.key $CTL_BASE.pem $CTL_BASE.key
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# remove crap
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rm -f request.cfg
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rm -f $CTL_BASE"_trust.pem" $SVR_BASE"_trust.pem" $SVR_BASE"_trust.srl"
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echo "Setup success. Certificates created. Enable in unbound.conf file to use"
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exit 0
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