mirror of
https://gitlab.com/libvirt/libvirt.git
synced 2024-07-11 04:15:49 +00:00
62442d578d
add an index * docs/pki_check.sh: shell script to check the PKI and client/server environment. Daniel
261 lines
7.4 KiB
Bash
Executable File
261 lines
7.4 KiB
Bash
Executable File
#!/bin/sh
|
|
#
|
|
# This shell script checks the TLS certificates and options needed
|
|
# for the secure client/server support of libvirt as documented at
|
|
# http://libvirt.org/remote.html#Remote_certificates
|
|
#
|
|
# Daniel Veillard <veillard@redhat.com>
|
|
#
|
|
USER=`who am i | awk '{ print $1 }'`
|
|
SERVER=1
|
|
CLIENT=1
|
|
PORT=16514
|
|
#
|
|
# First get certtool
|
|
#
|
|
CERTOOL=`which certtool 2>/dev/null`
|
|
if [ ! -x $CERTOOL ]
|
|
then
|
|
echo Could not locate the certtool program
|
|
echo make sure the gnutls-utils package is installed
|
|
exit 1
|
|
fi
|
|
echo Found $CERTOOL
|
|
|
|
#
|
|
# Check the directory structure
|
|
#
|
|
PKI="/etc/pki"
|
|
if [ ! -d $PKI ]
|
|
then
|
|
echo the $PKI directory is missing, it is usually
|
|
echo installed as part of the filesystem or openssl packages
|
|
exit 1
|
|
fi
|
|
|
|
if [ ! -r $PKI ]
|
|
then
|
|
echo the $PKI directory is not readable by $USER
|
|
echo "as root do: chmod a+rx $PKI"
|
|
exit 1
|
|
fi
|
|
if [ ! -x $PKI ]
|
|
then
|
|
echo the $PKI directory is not listable by $USER
|
|
echo "as root do: chmod a+rx $PKI"
|
|
exit 1
|
|
fi
|
|
|
|
CA="$PKI/CA"
|
|
if [ ! -d $CA ]
|
|
then
|
|
echo the $CA directory is missing, it is usually
|
|
echo installed as part of the or openssl package
|
|
exit 1
|
|
fi
|
|
|
|
if [ ! -r $CA ]
|
|
then
|
|
echo the $CA directory is not readable by $USER
|
|
echo "as root do: chmod a+rx $CA"
|
|
exit 1
|
|
fi
|
|
if [ ! -x $CA ]
|
|
then
|
|
echo the $CA directory is not listable by $USER
|
|
echo "as root do: chmod a+rx $CA"
|
|
exit 1
|
|
fi
|
|
|
|
LIBVIRT="$PKI/libvirt"
|
|
if [ ! -d $LIBVIRT ]
|
|
then
|
|
echo the $LIBVIRT directory is missing, it is usually
|
|
echo installed by the libvirt package
|
|
echo "as root do: mkdir -m 755 $LIBVIRT ; chown root:root $LIBVIRT"
|
|
exit 1
|
|
fi
|
|
|
|
if [ ! -r $LIBVIRT ]
|
|
then
|
|
echo the $LIBVIRT directory is not readable by $USER
|
|
echo "as root do: chown root:root $LIBVIRT ; chmod 755 $LIBVIRT"
|
|
exit 1
|
|
fi
|
|
if [ ! -x $LIBVIRT ]
|
|
then
|
|
echo the $LIBVIRT directory is not listable by $USER
|
|
echo "as root do: chown root:root $LIBVIRT ; chmod 755 $LIBVIRT"
|
|
exit 1
|
|
fi
|
|
|
|
LIBVIRTP="$LIBVIRT/private"
|
|
if [ ! -d $LIBVIRTP ]
|
|
then
|
|
echo the $LIBVIRTP directory is missing, it is usually
|
|
echo installed by the libvirt package
|
|
echo "as root do: mkdir -m 755 $LIBVIRTP ; chown root:root $LIBVIRTP"
|
|
exit 1
|
|
fi
|
|
|
|
if [ ! -r $LIBVIRTP ]
|
|
then
|
|
echo the $LIBVIRTP directory is not readable by $USER
|
|
echo "as root do: chown root:root $LIBVIRTP ; chmod 755 $LIBVIRTP"
|
|
exit 1
|
|
fi
|
|
if [ ! -x $LIBVIRTP ]
|
|
then
|
|
echo the $LIBVIRTP directory is not listable by $USER
|
|
echo "as root do: chown root:root $LIBVIRTP ; chmod 755 $LIBVIRTP"
|
|
exit 1
|
|
fi
|
|
|
|
#
|
|
# Now check the certificates
|
|
# First the CA certificate
|
|
#
|
|
if [ ! -f $CA/cacert.pem ]
|
|
then
|
|
echo the CA certificate $CA/cacert.pem is missing while it
|
|
echo should be installed on both client and servers
|
|
echo "see http://libvirt.org/remote.html#Remote_TLS_CA"
|
|
echo on how to install it
|
|
exit 1
|
|
fi
|
|
if [ ! -r $CA/cacert.pem ]
|
|
then
|
|
echo the CA certificate $CA/cacert.pem is not readable by $USER
|
|
echo "as root do: chmod 644 $CA/cacert.pem"
|
|
exit 1
|
|
fi
|
|
ORG=`$CERTOOL -i --infile $CA/cacert.pem | grep Issuer | sed 's+Issuer: CN=++'`
|
|
if [ "$ORG" == "" ]
|
|
then
|
|
echo the CA certificate $CA/cacert.pem does not define the organization
|
|
echo it should probably regenerated
|
|
echo "see http://libvirt.org/remote.html#Remote_TLS_CA"
|
|
echo on how to regenerate it
|
|
exit 1
|
|
fi
|
|
echo Found CA certificate $CA/cacert.pem for $ORG
|
|
|
|
# Second the client certificates
|
|
|
|
if [ -f $LIBVIRT/clientcert.pem ]
|
|
then
|
|
if [ ! -r $LIBVIRT/clientcert.pem ]
|
|
then
|
|
echo Client certificate $LIBVIRT/clientcert.pem should be world readable
|
|
echo "as root do: chown root:root $LIBVIRT/clientcert.pem ; chmod 644 $LIBVIRT/clientcert.pem"
|
|
else
|
|
S_ORG=`$CERTOOL -i --infile $LIBVIRT/clientcert.pem | grep Subject: | sed 's+.*O=\([a-zA-Z \._-]*\).*+\1+'`
|
|
if [ "$ORG" != "$S_ORG" ]
|
|
then
|
|
echo The CA certificate and the client certificate do not match
|
|
echo CA organization: $ORG
|
|
echo Client organization: $S_ORG
|
|
fi
|
|
CLIENT=`$CERTOOL -i --infile $LIBVIRT/clientcert.pem | grep Subject: | sed 's+.*CN=\(.[a-zA-Z \._-]*\).*+\1+'`
|
|
echo Found client certificate $LIBVIRT/clientcert.pem for $CLIENT
|
|
if [ ! -e $LIBVIRTP/clientkey.pem ]
|
|
then
|
|
echo Missing client private key $LIBVIRTP/clientkey.pem
|
|
else
|
|
echo Found client private key $LIBVIRTP/clientkey.pem
|
|
OWN=`ls -l $LIBVIRTP/clientkey.pem | awk '{ print $3 }'`
|
|
MOD=`ls -l $LIBVIRTP/clientkey.pem | awk '{ print $1 }'`
|
|
if [ "$OWN" != "root" ]
|
|
then
|
|
echo The client private key should be owned by root
|
|
echo "as root do: chown root $LIBVIRTP/clientkey.pem"
|
|
fi
|
|
if [ "$MOD" != "-rw-r--r--" ]
|
|
then
|
|
echo The client private key need to be read by client tools
|
|
echo "as root do: chmod 644 $LIBVIRTP/clientkey.pem"
|
|
fi
|
|
fi
|
|
|
|
fi
|
|
else
|
|
echo Did not found $LIBVIRT/clientcert.pem client certificate
|
|
echo The machine cannot act as a client
|
|
echo "see http://libvirt.org/remote.html#Remote_TLS_client_certificates"
|
|
echo on how to regenerate it
|
|
CLIENT=0
|
|
fi
|
|
|
|
# Third the server certificates
|
|
|
|
if [ -f $LIBVIRT/servercert.pem ]
|
|
then
|
|
if [ ! -r $LIBVIRT/servercert.pem ]
|
|
then
|
|
echo Server certificate $LIBVIRT/servercert.pem should be world readable
|
|
echo "as root do: chown root:root $LIBVIRT/servercert.pem ; chmod 644 $LIBVIRT/servercert.pem"
|
|
else
|
|
S_ORG=`$CERTOOL -i --infile $LIBVIRT/servercert.pem | grep Subject: | sed 's+.*O=\([a-zA-Z\. _-]*\).*+\1+'`
|
|
if [ "$ORG" != "$S_ORG" ]
|
|
then
|
|
echo The CA certificate and the server certificate do not match
|
|
echo CA organization: $ORG
|
|
echo Server organization: $S_ORG
|
|
fi
|
|
S_HOST=`$CERTOOL -i --infile $LIBVIRT/servercert.pem | grep Subject: | sed 's+.*CN=\([a-zA-Z\. _-]*\)+\1+'`
|
|
if [ "$S_HOST" != "`hostname -s`" -a "$S_HOST" != "`hostname`" ]
|
|
then
|
|
echo The server certificate does not seem to match the host name
|
|
echo hostname: '"'`hostname`'"'
|
|
echo Server certificate CN: '"'$S_HOST'"'
|
|
fi
|
|
echo Found server certificate $LIBVIRT/servercert.pem for $S_HOST
|
|
if [ ! -e $LIBVIRTP/serverkey.pem ]
|
|
then
|
|
echo Missing server private key $LIBVIRTP/serverkey.pem
|
|
else
|
|
echo Found server private key $LIBVIRTP/serverkey.pem
|
|
OWN=`ls -l $LIBVIRTP/serverkey.pem | awk '{ print $3 }'`
|
|
MOD=`ls -l $LIBVIRTP/serverkey.pem | awk '{ print $1 }'`
|
|
if [ "$OWN" != "root" ]
|
|
then
|
|
echo The server private key should be owned by root
|
|
echo "as root do: chown root $LIBVIRTP/serverkey.pem"
|
|
fi
|
|
if [ "$MOD" != "-rw-------" ]
|
|
then
|
|
echo The server private key need to be read only by root
|
|
echo "as root do: chmod 600 $LIBVIRTP/serverkey.pem"
|
|
fi
|
|
fi
|
|
|
|
fi
|
|
else
|
|
echo Did not found $LIBVIRT/servercert.pem server certificate
|
|
echo The machine cannot act as a server
|
|
echo "see http://libvirt.org/remote.html#Remote_TLS_server_certificates"
|
|
echo on how to regenerate it
|
|
SERVER=0
|
|
fi
|
|
|
|
if [ "$SERVER" = "1" ]
|
|
then
|
|
if [ -r /etc/sysconfig/libvirtd ]
|
|
then
|
|
if [ "`grep '^LIBVIRTD_ARGS' /etc/sysconfig/libvirtd | grep -- '--listen'`" = "" ]
|
|
then
|
|
echo Make sure /etc/sysconfig/libvirtd is setup to listen to
|
|
echo TCP/IP connections and restart the libvirtd service
|
|
fi
|
|
fi
|
|
if [ -r /etc/sysconfig/iptables ]
|
|
then
|
|
if [ "`grep $PORT /etc/sysconfig/iptables`" = "" ]
|
|
then
|
|
echo Make sure /etc/sysconfig/iptables is setup to allow
|
|
echo incoming TCP/IP connections on port $PORT and
|
|
echo restart the iptables service
|
|
fi
|
|
fi
|
|
fi
|