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#!/bin/bash
#
# Max Pritikin
# Copyright 2011, Cisco Systems, Inc
#
#
# Sets variables and config for the ESTServer callout (think CGI) script
# Provides common helper functions
#
# for detailed debugging
EST_SCRIPTNAME=$0
EST_LOGGING=estserver.scripts.log
# make bash exit if an uninitialized variable is used
set -u
# Base variables for CA's used. These are global. :(
# also note that these must match the equivalent settings
# within each associated config file
export EST_OPENSSL_MASA_CACNF=masa_ExampleCA.cnf
EST_OPENSSL_MASA_CADIR=masaCA
export EST_OPENSSL_MASA_CACERT=$EST_OPENSSL_MASA_CADIR/cacert.crt
EST_OPENSSL_MASA_CAPRIVDIR=$EST_OPENSSL_MASA_CADIR/private
EST_OPENSSL_MASA_CANEWCERTSDIR=$EST_OPENSSL_MASA_CADIR/newcerts
EST_OPENSSL_MASA_CADATABASE=$EST_OPENSSL_MASA_CADIR/index.txt
EST_OPENSSL_MASA_CASERIAL=$EST_OPENSSL_MASA_CADIR/serial
EST_OPENSSL_MASA_CAPRIVKEY=$EST_OPENSSL_MASA_CAPRIVDIR/cakey.pem
EST_OPENSSL_MASA_CAPRIVKEYPARAM=$EST_OPENSSL_MASA_CAPRIVDIR/cakeyparam.pem
EST_OPENSSL_MASA_CASUBJ="/CN=MASA_CA"
EST_OPENSSLCMD_MASA_CAECPARAMSFILE=$EST_OPENSSL_MASA_CADIR/prime256v1.pem
# if you want to use EC certificates set the ..._NEWKEY_PARAM like this:
EST_OPENSSLCMD_MASA_CANEWKEY_PARAM="-newkey ec:$EST_OPENSSLCMD_MASA_CAECPARAMSFILE"
#EST_OPENSSLCMD_MASA_CANEWKEY_PARAM=" "
export EST_OPENSSL_CACNF=estExampleCA.cnf
EST_OPENSSL_CADIR=estCA
export EST_OPENSSL_CACERT=$EST_OPENSSL_CADIR/cacert.crt
EST_OPENSSL_CAPRIVDIR=$EST_OPENSSL_CADIR/private
EST_OPENSSL_CANEWCERTSDIR=$EST_OPENSSL_CADIR/newcerts
EST_OPENSSL_CADATABASE=$EST_OPENSSL_CADIR/index.txt
EST_OPENSSL_CASERIAL=$EST_OPENSSL_CADIR/serial
EST_OPENSSL_CAPRIVKEY=$EST_OPENSSL_CAPRIVDIR/cakey.pem
EST_OPENSSL_CAPRIVKEYPARAM=$EST_OPENSSL_CAPRIVDIR/cakeyparam.pem
EST_OPENSSL_CASUBJ="/CN=estExampleCA"
EST_OPENSSLCMD_CAECPARAMSFILE=$EST_OPENSSL_CADIR/prime256v1.pem
# if you want to use EC certificates set the ..._NEWKEY_PARAM like this:
EST_OPENSSLCMD_CANEWKEY_PARAM="-newkey ec:$EST_OPENSSLCMD_CAECPARAMSFILE"
#EST_OPENSSLCMD_CANEWKEY_PARAM=" "
# to enable verbose debugging of curl exchanges set this
# remember that "set -u" means we'll always need something like " " set
CURLCMD_VERBOSE=" "
#CURLCMD_VERBOSE="--verbose --trace -"
#CURLCMD_VERBOSE="--verbose --trace-ascii -"
# TODO: URGENT: why doesn't this work!? Openssl needs to know where to put the RANDFILE
RANDFILE="~/.rnd"
# NOTE: est itself allows the CN= to be different than the FQDN but
# curl is used from the demo client and curl mandates the HTTPS
# RFC2818 section 3.1 Server Identity limitations. Thus we use
# 127.0.0.1 here for the CN. If a real deployment were to use a
# curl script there would be an assumption of DNS (and proper FQDN
# in the issued est server certificate)
# curl error looks like: * SSL: certificate subject name 'estExampleServer' does not match target host name '127.0.0.1'
# EST_SERVER_SUBJ="/CN=estExampleServer"
EST_SERVER_SUBJ="/CN=127.0.0.1"
EST_SERVER_CERTREQ=$EST_OPENSSL_CADIR/estserver.req
EST_SERVER_CERT=$EST_OPENSSL_CADIR/estserver.crt
EST_SERVER_PRIVKEY=$EST_OPENSSL_CAPRIVDIR/estserver.pem
EST_SERVER_CERTANDKEY=$EST_OPENSSL_CAPRIVDIR/estservercertandkey.pem
EST_SERVER_CCAUTHZDB=ccAuthz.db
# TODO: check to see if cmd path's have been overridden by a local settings file
# which openssl to use (Not depending on the path because openssl has many
# versions with various functionalities. Many OS distributions have an
# older version. These scripts were intially tested against OpenSSL 0.9.8r
#OPENSSLCMD=~/src/openssl-fecc2/apps/openssl
#OPENSSLCMD=~/src/openssl-1.0.1c/apps/openssl
OPENSSLCMD=openssl
# which version of curl to use (also not depending on the path)
#CURLCMD=~/src/curl-7.24.0/src/curl
CURLCMD=curl
# demoClient variables
EST_DEMOCLIENT_DIR=demoClient
EST_DEMOCLIENT_CACERT=$EST_DEMOCLIENT_DIR/cacert.pem
EST_DEMOCLIENT_CACERTUPDATED=$EST_DEMOCLIENT_DIR/cacert_updated.pem
function logandexit ()
{
echo "###########..EXIT..##########" >> $EST_LOGGING
echo "SCRIPT $EST_SCRIPTNAME EXIT: $1 ($2)" >> $EST_LOGGING
echo "###########^^EXIT^^##########" >> $EST_LOGGING
echo " " >> $EST_LOGGING
exit $2
}
function iferrorlogandexit ()
{
if [ $? -ne 0 ] ; then
logandexit "$1" "$2"
fi
}
function dumpheadersandcontent ()
{
echo "Headers:" >> $EST_LOGGING
cat "$1" >> $EST_LOGGING
echo "/Headers" >> $EST_LOGGING
if [ -n "$2" ] ; then
echo "Content:" >> $EST_LOGGING
if [ -e $2 ] ; then
cat "$2" >> $EST_LOGGING
fi
echo "/Content" >> $EST_LOGGING
fi
}
# <name> header-to-search-for file-to-look-in msg-to-log additional-file-to-log
function iferrorheaderslogandexit ()
{
grep "$1" "$2" > /dev/null
if [ $? -ne 0 ]
then
dumpheadersandcontent $2 $4
logandexit "Header ERROR: $3" 1
fi
}
# TODO: support multiple certificates in pkcs7 responses (e.g. ca chains)
# puts a (single) certificate into a degenerate pkcs7
function cert2pkcs72stdout ()
{
echo "Content-Type: application/pkcs7-mime"
echo ""
$OPENSSLCMD crl2pkcs7 -certfile $1 -nocrl
}
###############################################################
##### Function: Combine files
###############################################################
function combinefiles ()
{
cat $1 > $3
cat $2 >> $3
}
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