plc.d/ssl

   1 #!/bin/bash
   2 #
   3 # priority: 400
   4 #
   5 # Generate SSL certificates
   6 #
   7 # Mark Huang <mlhuang@cs.princeton.edu>
   8 # Copyright (C) 2006 The Trustees of Princeton University
   9 #
  10 # $Id: ssl,v 1.1 2006/04/06 21:51:59 mlhuang Exp $
  11 #
  12
  13 # Source function library and configuration
  14 . /etc/plc.d/functions
  15
  16 case "$1" in
  17     start)
  18         MESSAGE=$"Generating SSL certificates"
  19         dialog "$MESSAGE"
  20
  21         # Generate self-signed SSL certificate(s). These nice
  22         # commands come from the mod_ssl spec file for Fedora Core
  23         # 2. We generate a certificate for each enabled server
  24         # with a different hostname. These self-signed
  25         # certificates may be overridden later.
  26         for server in WWW API BOOT ; do
  27             ssl_key=PLC_${server}_SSL_KEY
  28             ssl_crt=PLC_${server}_SSL_CRT
  29             hostname=PLC_${server}_HOST
  30
  31             # Check if we have already generated a certificate for
  32             # the same hostname.
  33             for previous_server in WWW API BOOT ; do
  34                 if [ "$server" = "$previous_server" ] ; then
  35                     break
  36                 fi
  37                 previous_ssl_key=PLC_${previous_server}_SSL_KEY
  38                 previous_ssl_crt=PLC_${previous_server}_SSL_CRT
  39                 previous_hostname=PLC_${previous_server}_HOST
  40
  41                 if [ -f ${!previous_ssl_crt} ] && \
  42                     [ "$(ssl_cname ${!previous_ssl_crt})" = "${!hostname}" ] ; then
  43                     cp -a ${!previous_ssl_key} ${!ssl_key}
  44                     cp -a ${!previous_ssl_crt} ${!ssl_crt}
  45                     break
  46                 fi
  47             done
  48
  49             # Check if self signed certificate is valid
  50             if [ -f ${!ssl_crt} ] ; then
  51                 verify=$(openssl verify ${!ssl_crt})
  52                 # If self signed
  53                 if grep -q "self signed certificate" <<<$verify ; then
  54                     # Delete if expired or hostname changed
  55                     if grep -q "expired" <<<$verify || \
  56                         [ "$(ssl_cname ${!ssl_crt})" != "${!hostname}" ] ; then
  57                         rm -f ${!ssl_crt}
  58                     fi
  59                 else
  60                     echo "$verify" >&2
  61                 fi
  62             fi
  63
  64             # Generate new self signed certificate
  65             if [ ! -f ${!ssl_crt} ] ; then
  66                 mkdir -p $(dirname ${!ssl_crt})
  67                 openssl req -new -x509 -days 365 -set_serial $RANDOM \
  68                     -nodes -keyout ${!ssl_key} -out ${!ssl_crt} <<EOF
  69 --
  70 US
  71 NJ
  72 Princeton
  73 PlanetLab Federation
  74 $PLC_NAME Central
  75 ${!hostname}
  76 $PLC_MAIL_SUPPORT_ADDRESS
  77 EOF
  78                 check
  79                 chmod 644 ${!ssl_crt}
  80             fi
  81         done
  82
  83         # API requires a public key for slice ticket verification
  84         if [ ! -f $PLC_API_SSL_KEY_PUB ] ; then
  85             openssl rsa -pubout <$PLC_API_SSL_KEY >$PLC_API_SSL_KEY_PUB
  86             check
  87         fi
  88
  89         # Install into both /etc/pki (Fedora Core 4) and
  90         # /etc/httpd/conf (Fedora Core 2). If the API, boot, and
  91         # web servers are all running on the same machine, the web
  92         # server certificate takes precedence.
  93         for server in API BOOT WWW ; do
  94             enabled=PLC_${server}_ENABLED
  95             if [ "${!enabled}" != "1" ] ; then
  96                 continue
  97             fi
  98             ssl_key=PLC_${server}_SSL_KEY
  99             ssl_crt=PLC_${server}_SSL_CRT
 100
 101             symlink ${!ssl_crt} /etc/pki/tls/certs/localhost.crt
 102             symlink ${!ssl_key} /etc/pki/tls/private/localhost.key
 103             symlink ${!ssl_crt} /etc/httpd/conf/ssl.crt/server.crt
 104             symlink ${!ssl_key} /etc/httpd/conf/ssl.key/server.key
 105         done
 106
 107         result "$MESSAGE"
 108         ;;
 109 esac
 110
 111 exit $ERRORS