mirror of
https://gitlab.com/libvirt/libvirt.git
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b3ff07a07d
Alas, the shell is not a real programming language. Patch generated by manual confirmation of vim's s/[^"]\@<=\$\S\+\s\@=/"&"/gc and s/\(echo \)\@<=[^"].*\$.*$/"&"/c matches. This patch generate a lot of noise and carries little benefits, as I do not really expect $PKI to contain spaces or backticks. I'm just fuming, and would not really mind if this patch is ignored
325 lines
9.4 KiB
Bash
Executable File
325 lines
9.4 KiB
Bash
Executable File
#!/bin/sh
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#
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# This shell script checks the TLS certificates and options needed
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# for the secure client/server support of libvirt as documented at
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# http://libvirt.org/remote.html#Remote_certificates
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#
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# Daniel Veillard <veillard@redhat.com>
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#
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USER=`who am i | awk '{ print $1 }'`
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SERVER=1
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CLIENT=1
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PORT=16514
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#
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# First get certtool
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#
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CERTOOL=`which certtool 2>/dev/null`
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if [ ! -x "$CERTOOL" ]
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then
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echo "Could not locate the certtool program"
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echo "make sure the gnutls-utils (or gnutls-bin) package is installed"
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exit 1
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fi
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echo Found "$CERTOOL"
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#
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# Check the directory structure
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#
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SYSCONFDIR="@SYSCONFDIR@"
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PKI="$SYSCONFDIR/pki"
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if [ ! -d "$PKI" ]
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then
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echo the $PKI directory is missing, it is usually
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echo installed as part of the filesystem or openssl packages
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exit 1
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fi
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if [ ! -r "$PKI" ]
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then
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echo the $PKI directory is not readable by $USER
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echo "as root do: chmod a+rx $PKI"
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exit 1
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fi
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if [ ! -x "$PKI" ]
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then
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echo the $PKI directory is not listable by $USER
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echo "as root do: chmod a+rx $PKI"
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exit 1
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fi
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CA="$PKI/CA"
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if [ ! -d "$CA" ]
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then
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echo the $CA directory is missing, it is usually
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echo installed as part of the or openssl package
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exit 1
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fi
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if [ ! -r "$CA" ]
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then
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echo the $CA directory is not readable by $USER
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echo "as root do: chmod a+rx $CA"
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exit 1
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fi
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if [ ! -x "$CA" ]
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then
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echo the $CA directory is not listable by $USER
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echo "as root do: chmod a+rx $CA"
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exit 1
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fi
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LIBVIRT="$PKI/libvirt"
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if [ ! -d "$LIBVIRT" ]
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then
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echo the $LIBVIRT directory is missing, it is usually
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echo installed by the libvirt package
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echo "as root do: mkdir -m 755 $LIBVIRT ; chown root:root $LIBVIRT"
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exit 1
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fi
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if [ ! -r "$LIBVIRT" ]
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then
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echo the $LIBVIRT directory is not readable by $USER
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echo "as root do: chown root:root $LIBVIRT ; chmod 755 $LIBVIRT"
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exit 1
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fi
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if [ ! -x "$LIBVIRT" ]
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then
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echo the $LIBVIRT directory is not listable by $USER
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echo "as root do: chown root:root $LIBVIRT ; chmod 755 $LIBVIRT"
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exit 1
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fi
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LIBVIRTP="$LIBVIRT/private"
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if [ ! -d "$LIBVIRTP" ]
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then
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echo the $LIBVIRTP directory is missing, it is usually
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echo installed by the libvirt package
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echo "as root do: mkdir -m 755 $LIBVIRTP ; chown root:root $LIBVIRTP"
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exit 1
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fi
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if [ ! -r "$LIBVIRTP" ]
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then
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echo the $LIBVIRTP directory is not readable by $USER
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echo "as root do: chown root:root $LIBVIRTP ; chmod 755 $LIBVIRTP"
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exit 1
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fi
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if [ ! -x "$LIBVIRTP" ]
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then
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echo the $LIBVIRTP directory is not listable by $USER
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echo "as root do: chown root:root $LIBVIRTP ; chmod 755 $LIBVIRTP"
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exit 1
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fi
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#
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# Now check the certificates
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# First the CA certificate
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#
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if [ ! -f "$CA/cacert.pem" ]
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then
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echo the CA certificate $CA/cacert.pem is missing while it
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echo should be installed on both client and servers
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echo "see http://libvirt.org/remote.html#Remote_TLS_CA"
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echo on how to install it
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exit 1
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fi
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if [ ! -r "$CA/cacert.pem" ]
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then
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echo the CA certificate $CA/cacert.pem is not readable by $USER
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echo "as root do: chmod 644 $CA/cacert.pem"
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exit 1
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fi
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sed_get_org='/Issuer:/ {
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s/.*Issuer:.*CN=//
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s/,.*//
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p
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}'
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ORG=`"$CERTOOL" -i --infile "$CA/cacert.pem" | sed -n "$sed_get_org"`
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if [ "$ORG" = "" ]
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then
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echo the CA certificate $CA/cacert.pem does not define the organization
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echo it should probably regenerated
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echo "see http://libvirt.org/remote.html#Remote_TLS_CA"
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echo on how to regenerate it
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exit 1
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fi
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echo Found CA certificate $CA/cacert.pem for $ORG
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# Second the client certificates
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if [ -f "$LIBVIRT/clientcert.pem" ]
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then
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if [ ! -r "$LIBVIRT/clientcert.pem" ]
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then
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echo Client certificate $LIBVIRT/clientcert.pem should be world readable
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echo "as root do: chown root:root $LIBVIRT/clientcert.pem ; chmod 644 $LIBVIRT/clientcert.pem"
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else
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S_ORG=`"$CERTOOL" -i --infile "$LIBVIRT/clientcert.pem" | grep Subject: | sed 's+.*O=\([a-zA-Z \._-]*\).*+\1+'`
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if [ "$ORG" != "$S_ORG" ]
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then
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echo The CA certificate and the client certificate do not match
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echo CA organization: $ORG
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echo Client organization: $S_ORG
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fi
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CLIENT=`"$CERTOOL" -i --infile "$LIBVIRT/clientcert.pem" | grep Subject: | sed 's+.*CN=\(.[a-zA-Z \._-]*\).*+\1+'`
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echo Found client certificate $LIBVIRT/clientcert.pem for $CLIENT
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if [ ! -e "$LIBVIRTP/clientkey.pem" ]
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then
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echo Missing client private key $LIBVIRTP/clientkey.pem
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else
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echo Found client private key $LIBVIRTP/clientkey.pem
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OWN=`ls -l "$LIBVIRTP/clientkey.pem" | awk '{ print $3 }'`
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MOD=`ls -l "$LIBVIRTP/clientkey.pem" | awk '{ print $1 }'`
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if [ "$OWN" != "root" ]
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then
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echo The client private key should be owned by root
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echo "as root do: chown root $LIBVIRTP/clientkey.pem"
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fi
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if [ "$MOD" != "-rw-r--r--" ]
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then
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echo The client private key need to be read by client tools
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echo "as root do: chmod 644 $LIBVIRTP/clientkey.pem"
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fi
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fi
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fi
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else
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echo Did not find "$LIBVIRT/clientcert.pem" client certificate
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echo The machine cannot act as a client
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echo "see http://libvirt.org/remote.html#Remote_TLS_client_certificates"
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echo on how to regenerate it
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CLIENT=0
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fi
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# Third the server certificates
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if [ -f "$LIBVIRT/servercert.pem" ]
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then
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if [ ! -r "$LIBVIRT/servercert.pem" ]
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then
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echo Server certificate $LIBVIRT/servercert.pem should be world readable
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echo "as root do: chown root:root $LIBVIRT/servercert.pem ; chmod 644 $LIBVIRT/servercert.pem"
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else
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S_ORG=`"$CERTOOL" -i --infile "$LIBVIRT/servercert.pem" | grep Subject: | sed 's+.*O=\([a-zA-Z\. _-]*\).*+\1+'`
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if [ "$ORG" != "$S_ORG" ]
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then
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echo The CA certificate and the server certificate do not match
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echo CA organization: $ORG
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echo Server organization: $S_ORG
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fi
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S_HOST=`"$CERTOOL" -i --infile "$LIBVIRT/servercert.pem" | grep Subject: | sed 's+.*CN=\([a-zA-Z\. _-]*\)+\1+'`
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if test "$S_HOST" != "`hostname -s`" && test "$S_HOST" != "`hostname`"
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then
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echo The server certificate does not seem to match the host name
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echo hostname: '"'`hostname`'"'
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echo Server certificate CN: '"'$S_HOST'"'
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fi
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echo Found server certificate $LIBVIRT/servercert.pem for $S_HOST
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if [ ! -e "$LIBVIRTP/serverkey.pem" ]
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then
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echo Missing server private key $LIBVIRTP/serverkey.pem
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else
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echo Found server private key $LIBVIRTP/serverkey.pem
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OWN=`ls -l "$LIBVIRTP/serverkey.pem" | awk '{ print $3 }'`
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MOD=`ls -l "$LIBVIRTP/serverkey.pem" | awk '{ print $1 }'`
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if [ "$OWN" != "root" ]
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then
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echo The server private key should be owned by root
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echo "as root do: chown root $LIBVIRTP/serverkey.pem"
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fi
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if [ "$MOD" != "-rw-------" ]
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then
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echo The server private key need to be read only by root
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echo "as root do: chmod 600 $LIBVIRTP/serverkey.pem"
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fi
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fi
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fi
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else
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echo Did not find $LIBVIRT/servercert.pem server certificate
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echo The machine cannot act as a server
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echo "see http://libvirt.org/remote.html#Remote_TLS_server_certificates"
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echo on how to regenerate it
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SERVER=0
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fi
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if [ "$SERVER" = "1" ]
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then
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if [ -r "$SYSCONFDIR"/sysconfig/libvirtd ]
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then
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if grep "^LIBVIRTD_ARGS.*--listen" "$SYSCONFDIR"/sysconfig/libvirtd \
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>/dev/null 2>&1
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then
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:
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else
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echo Make sure "$SYSCONFDIR"/sysconfig/libvirtd is setup to listen to
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echo TCP/IP connections and restart the libvirtd service
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fi
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fi
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if [ -r "$SYSCONFDIR"/sysconfig/iptables ]
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then
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if grep "$PORT" "$SYSCONFDIR"/sysconfig/iptables >/dev/null 2>&1
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then
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:
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else
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echo Make sure "$SYSCONFDIR"/sysconfig/iptables is setup to allow
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echo incoming TCP/IP connections on port $PORT and
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echo restart the iptables service
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fi
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fi
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fi
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exit 0
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: <<=cut
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=pod
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=head1 NAME
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virt-pki-validate - validate libvirt PKI files are configured correctly
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=head1 SYNOPSIS
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virt-pki-validate
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=head1 DESCRIPTION
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This tool validates that the necessary PKI files are configured for
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a secure libvirt server or client using the TLS encryption protocol.
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It will report any missing certificate or key files on the host. It
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should be run as root to ensure it can read all the necessary files
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=head1 EXIT STATUS
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Upon successful validation, an exit status of 0 will be set. Upon
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failure a non-zero status will be set.
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=head1 AUTHOR
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Richard Jones
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=head1 BUGS
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Report any bugs discovered to the libvirt community via the
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mailing list C<http://libvirt.org/contact.html> or bug tracker C<http://libvirt.org/bugs.html>.
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Alternatively report bugs to your software distributor / vendor.
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=head1 COPYRIGHT
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Copyright (C) 2006-2010 by Red Hat, Inc.
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=head1 LICENSE
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virt-pki-validate is distributed under the terms of the GNU GPL v2+.
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This is free software; see the source for copying conditions. There
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is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR
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PURPOSE
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=head1 SEE ALSO
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C<virsh(1)>, online PKI setup instructions C<http://libvirt.org/remote.html>
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=cut
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