unbound/smallapp/unbound-control-setup.sh.in

   1 #!/bin/sh
   2 #
   3 # unbound-control-setup.sh - set up SSL certificates for unbound-control
   4 #
   5 # Copyright (c) 2008, NLnet Labs. All rights reserved.
   6 #
   7 # This software is open source.
   8 #
   9 # Redistribution and use in source and binary forms, with or without
  10 # modification, are permitted provided that the following conditions
  11 # are met:
  12 #
  13 # Redistributions of source code must retain the above copyright notice,
  14 # this list of conditions and the following disclaimer.
  15 #
  16 # Redistributions in binary form must reproduce the above copyright notice,
  17 # this list of conditions and the following disclaimer in the documentation
  18 # and/or other materials provided with the distribution.
  19 #
  20 # Neither the name of the NLNET LABS nor the names of its contributors may
  21 # be used to endorse or promote products derived from this software without
  22 # specific prior written permission.
  23 #
  24 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  25 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  26 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  27 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  28 # HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  29 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
  30 # TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  31 # PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
  32 # LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  33 # NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  34 # SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  35
  36 # settings:
  37
  38 # directory for files
  39 prefix=@prefix@
  40 DESTDIR=@sysconfdir@/unbound
  41
  42 # issuer and subject name for certificates
  43 SERVERNAME=unbound
  44 CLIENTNAME=unbound-control
  45
  46 # validity period for certificates
  47 DAYS=7200
  48
  49 # size of keys in bits
  50 BITS=1536
  51
  52 # hash algorithm
  53 HASH=sha256
  54
  55 # base name for unbound server keys
  56 SVR_BASE=unbound_server
  57
  58 # base name for unbound-control keys
  59 CTL_BASE=unbound_control
  60
  61 # we want -rw-r----- access (say you run this as root: grp=yes (server), all=no).
  62 umask 0027
  63
  64 # end of options
  65
  66 # functions:
  67 error ( ) {
  68         echo "$0 fatal error: $1"
  69         exit 1
  70 }
  71
  72 # check arguments:
  73 while test $# -ne 0; do
  74         case $1 in
  75         -d)
  76         if test $# -eq 1; then error "need argument for -d"; fi
  77         DESTDIR="$2"
  78         shift
  79         ;;
  80         *)
  81         echo "unbound-control-setup.sh - setup SSL keys for unbound-control"
  82         echo "  -d dir  use directory to store keys and certificates."
  83         echo "          default: $DESTDIR"
  84         echo "please run this command using the same user id that the "
  85         echo "unbound daemon uses, it needs read privileges."
  86         exit 1
  87         ;;
  88         esac
  89         shift
  90 done
  91
  92 # go!:
  93 echo "setup in directory $DESTDIR"
  94 cd "$DESTDIR" || error "could not cd to $DESTDIR"
  95
  96 # create certificate keys; do not recreate if they already exist.
  97 if test -f $SVR_BASE.key; then
  98         echo "$SVR_BASE.key exists"
  99 else
 100         echo "generating $SVR_BASE.key"
 101         openssl genrsa -out $SVR_BASE.key $BITS || error "could not genrsa"
 102 fi
 103 if test -f $CTL_BASE.key; then
 104         echo "$CTL_BASE.key exists"
 105 else
 106         echo "generating $CTL_BASE.key"
 107         openssl genrsa -out $CTL_BASE.key $BITS || error "could not genrsa"
 108 fi
 109
 110 # create self-signed cert for server
 111 cat >request.cfg <<EOF
 112 [req]
 113 default_bits=$BITS
 114 default_md=$HASH
 115 prompt=no
 116 distinguished_name=req_distinguished_name
 117
 118 [req_distinguished_name]
 119 commonName=$SERVERNAME
 120 EOF
 121 test -f request.cfg || error "could not create request.cfg"
 122
 123 echo "create $SVR_BASE.pem (self signed certificate)"
 124 openssl req -key $SVR_BASE.key -config request.cfg  -new -x509 -days $DAYS -out $SVR_BASE.pem || error "could not create $SVR_BASE.pem"
 125 # create trusted usage pem
 126 openssl x509 -in $SVR_BASE.pem -addtrust serverAuth -out $SVR_BASE"_trust.pem"
 127
 128 # create client request and sign it, piped
 129 cat >request.cfg <<EOF
 130 [req]
 131 default_bits=$BITS
 132 default_md=$HASH
 133 prompt=no
 134 distinguished_name=req_distinguished_name
 135
 136 [req_distinguished_name]
 137 commonName=$CLIENTNAME
 138 EOF
 139 test -f request.cfg || error "could not create request.cfg"
 140
 141 echo "create $CTL_BASE.pem (signed client certificate)"
 142 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
 143 test -f $CTL_BASE.pem || error "could not create $CTL_BASE.pem"
 144 # create trusted usage pem
 145 # openssl x509 -in $CTL_BASE.pem -addtrust clientAuth -out $CTL_BASE"_trust.pem"
 146
 147 # see details with openssl x509 -noout -text < $SVR_BASE.pem
 148 # echo "create $CTL_BASE""_browser.pfx (web client certificate)"
 149 # echo "create webbrowser PKCS#12 .PFX certificate file. In Firefox import in:"
 150 # echo "preferences - advanced - encryption - view certificates - your certs"
 151 # echo "empty password is used, simply click OK on the password dialog box."
 152 # 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"
 153
 154 # remove unused permissions
 155 chmod o-rw $SVR_BASE.pem $SVR_BASE.key $CTL_BASE.pem $CTL_BASE.key
 156
 157 # remove crap
 158 rm -f request.cfg
 159 rm -f $CTL_BASE"_trust.pem" $SVR_BASE"_trust.pem" $SVR_BASE"_trust.srl"
 160
 161 echo "Setup success. Certificates created. Enable in unbound.conf file to use"
 162
 163 exit 0