cumulative commit of local branch, many changes regarding virtualization

4 files changed, 158 insertions, 77 deletions

diff --git a/os-plugins/plugins/xen/OpenSLX/OSPlugin/xen.pm b/os-plugins/plugins/xen/OpenSLX/OSPlugin/xen.pm
index 5e500b49..8af752b4 100644
--- a/os-plugins/plugins/xen/OpenSLX/OSPlugin/xen.pm
+++ b/os-plugins/plugins/xen/OpenSLX/OSPlugin/xen.pm
@@ -59,24 +59,126 @@ sub getAttrInfo
             End-of-Here
             content_regex => qr{^(0|1)$},
             content_descr => '1 means active - 0 means inactive',
-            default => '1',
+            # set active to 0, later set specially created Xen system to 1
+            default => '0',
+        },
+        # attribute 'imagesrc' defines where we can find xen images
+        'xen::imagesrc' => {
+            applies_to_systems => 1,
+            applies_to_clients => 1,
+            description => unshiftHereDoc(<<'            End-of-Here'),
+                Where do we store our xen images? NFS? Filesystem?
+            End-of-Here
+            content_regex => qr{^(/|nfs://)},
+            content_descr => 'local path or URI or "-" (unset)',
+            default => undef,
+        },
+         # attribute 'tftpdir' defines TFTP dir for network boots /w NAT
+        'xen::tftpdir' => {
+            applies_to_systems => 1,
+            applies_to_clients => 1,
+            description => unshiftHereDoc(<<'            End-of-Here'),
+                Do you want to define a stage 4 TFTP dir for netwoork boots?
+                Needed to boot Xen via NFS, we only need the initramfs
+                Hint: Mount your TFTP ro via NFS to a local dir
+            End-of-Here
+            content_regex => qr{^(/)},
+            content_descr => 'local path or "-" (unset)',
+            default => undef,
         },
     };
 }
 
+sub installationPhase
+{
+    my $self = shift;
+    my $info = shift;
+
+    $self->{pluginRepositoryPath} = $info->{'plugin-repo-path'};
+    $self->{openslxBasePath}      = $info->{'openslx-base-path'};
+
+    # Copy run-virt.include and template files to the appropriate place for
+    # inclusion in stage4
+    my $pluginName = $self->{'name'};
+    my $pluginBasePath = 
+      "$self->{openslxBasePath}/lib/plugins/$pluginName/files";
+
+    foreach my $file ( qw( run-virt.include machine.include hvm.include ) ) {
+        copyFile("$pluginBasePath/$file", "$self->{pluginRepositoryPath}/");
+        chmod 0644, "$self->{pluginRepositoryPath}/$file";
+    }
+
+    return;
+}
+
+sub removalPhase
+{
+    my $self = shift;
+    my $info = shift;
+
+    return;
+}
+
 sub suggestAdditionalKernelModules
 {
     my $self                = shift;
     my $makeInitRamFSEngine = shift;
 
     my @suggestedModules;
-    
-    # Xen needs bridge module and for SUSE 10.2 netloop other OS: to be checked
-    if ($makeInitRamFSEngine->{'distro-name'} =~ m{^suse}i) {
-        push @suggestedModules, qw( bridge netloop )
-    }
-    
+
+    # Xen needs bridge module, for guests xennet and maybe xenblk
+    # earlier versions needed netloop
+    push @suggestedModules, qw( bridge xennet xenblk );
+
     return @suggestedModules;
 }
 
+#sub _xenLabel
+#{
+#    # set label for each Xen system
+#    foreach my $info (@$systemInfos) {
+#        if ($info->{xen::active} eq 1) {
+#            my $label = $info->{label} || '';
+#            if (!length($label) || $label eq $info->{name}) {
+#                if ($info->{name} =~ m{^(.+)::(.+)$}) {
+#                    my $system = $1;
+#                    my $exportType = $2;
+#                    $label = $system . "-xen" . ' ' x (36-length($system))
+#                      . $exportType;
+#                } else {
+#                    $label = $info->{name};
+#                }
+#            }
+#        }
+#        $info->{pxeLabel} = $label;
+#    }
+#    return $info; #??? 
+#}
+
+#sub _xenBootEntry
+#{
+#    # Xen entries look different
+#    # Example:
+#    # KERNEL mboot.c32 vendor-os/xen.gz dom0_mem=128000 ---
+#    # vendor-os/vmlinuz-xen debug=3 --- vendor-os/initramfs-1
+#    # TODO: versionsort oder per attr?
+#    if ($info->{xen::active} eq 1) {
+#        my $xenKernel = slxsystem(ls /boot/xen* | sort | tail -n 1);
+#        $append .= " file=$bootURI"     if length($bootURI);
+#        $append .= " file=$tftpPrefix"  if length($tftpPrefix);
+#        $append .= " $clientAppend";
+#        $append .= " --- $pxePrefix$vendorOSName/$info->{'initramfs-name'}";
+#        $slxLabels .= "LABEL openslx-$info->{'external-id'}-xen\n";
+#        # $slxLabels .= $pxeDefault;
+#        $slxLabels .= "\tMENU LABEL ^$info->{pxeLabel}\n";
+#        $slxLabels .= "\tKERNEL mboot.c32\n";
+#        $slxLabels .= "\tAPPEND $pxePrefix$vendorOSName/$xenKernel";
+#        # $slxLabels .= " dom0_mem=128000";
+#        $slxLabels .= " --- $pxePrefix$vendorOSName/$kernelName";
+#        $slxLabels .= " --- $append\n";
+#        $slxLabels .= "\tIPAPPEND 3\n";
+#    }
+#    return $slxLabels;
+#}
+
 1;
diff --git a/os-plugins/plugins/xen/XX_xen.sh b/os-plugins/plugins/xen/XX_xen.sh
index ba2c4f00..af3f6cc4 100644
--- a/os-plugins/plugins/xen/XX_xen.sh
+++ b/os-plugins/plugins/xen/XX_xen.sh
@@ -14,16 +14,60 @@
 # script is included from init via the "." load function - thus it has all
 # variables and functions available
 
-if [ -e /initramfs/plugin-conf/xen.conf ]; then
-  . /initramfs/plugin-conf/xen.conf
-  if [ $xen_active -ne 0 ]; then
+# include default directories
+. /etc/openslx.conf
+
+CONFFILE=/initramfs/plugin-conf/xen.conf
+PLUGINCONFDIR=/mnt/${OPENSLX_DEFAULT_CONFDIR}/plugins/xen
+PLUGINDIR=/mnt/${OPENSLX_DEFAULT_DIR}/plugin-repo/xen
+VIRTDIR=/mnt/${OPENSLX_DEFAULT_VIRTDIR}/xen
+
+# check if the configuration file is available
+if [ -e ${CONFFILE} ]; then
+
+  # load needed variables
+  . ${CONFFILE}
+
+  # Test if this plugin is activated... more or less useless with the
+  # new plugin system
+  if [ $xen_active -ne 0 2>/dev/null ]; then
+
+    [ $DEBUGLEVEL -gt 0 ] && echo "executing the 'xen' os-plugin ...";
+
+    # load general configuration
+    . /etc/initramfs-setup
+
+      # get source of xen image server (get type, server and path)
+    if strinstr "/" "${xen_imagesrc}" ; then
+      vbimgprot=$(uri_token ${xen_imagesrc} prot)
+      vbimgserv=$(uri_token ${xen_imagesrc} server)
+      vbimgpath="$(uri_token ${xen_imagesrc} path)"
+    fi
+    if [ -n "${vbimgserv}" ] ; then
+      # directory where qemu images are expected in
+      mnttarget=${VIRTDIR}
+      # mount the xen image source readonly (ro)
+      fsmount ${vbimgprot} ${vbimgserv} ${vbimgpath} ${mnttarget} ro
+    else
+      [ $DEBUGLEVEL -gt 1 ] && \
+        error "  * Incomplete information in variable ${xen_imagesrc}." \
+        nonfatal
+    fi
+
+    # copy virtualization include files to config dir
+    testmkd ${PLUGINCONFDIR}
     testmkd /mnt/var/log/xen
     testmkd /mnt/var/run/xend
     testmkd /mnt/var/run/xenstored
+    cp ${PLUGINDIR}/*.include ${PLUGINCONFDIR}
+    # copy ${CONFFILE} to ${PLUGINCONFDIR} just in case
+    cp ${CONFFILE} ${PLUGINCONFDIR}
 
+    # activate init files
+    # TODO: in xen-slx start
+    # increase loop devices for loop images
+    modprobe -q loop max_loop=64 >/tmp/xen.log 2>&1
     rllinker "xendomains" 14 8
     rllinker "xend" 13 9
-
-    modprobe loop max_loop=64
   fi
 fi
diff --git a/os-plugins/plugins/xen/init-hooks/10-have-nw-modules/xen.sh b/os-plugins/plugins/xen/init-hooks/10-have-nw-modules/xen.sh
deleted file mode 100644
index 321b6a06..00000000
--- a/os-plugins/plugins/xen/init-hooks/10-have-nw-modules/xen.sh
+++ /dev/null
@@ -1,23 +0,0 @@
-# configure Xen bridge xenbr0
-modprobe ${MODPRV} netloop
-local ipls
-local vifnum="0"
-local bridge="xenbr${vifnum}"
-local netdev="eth${vifnum}"
-local pdev="p${netdev}"
-local vdev="veth${vifnum}"
-local vif0="vif0.${vifnum}"
-# fixme: that is the mac address of main ethernet device
-local mac=`ip link show ${netdev} | grep 'link\/ether' | sed -e 's/.*ether \(..:..:..:..:..:..\).*/\1/'`
-
-brctl addbr ${bridge}
-brctl stp ${bridge} off
-brctl setfd ${bridge} 0
-brctl addif ${bridge} ${vif0}
-for ipls in "${netdev} name ${pdev}" "${vdev} name ${netdev}" \
-            "${pdev} down arp off" "${pdev} addr fe:ff:ff:ff:ff:ff" \
-            "${netdev} addr ${mac} arp on" "${bridge} up" "${vif0} up" \
-            "${pdev} up" "${netdev} up"; do
-  ip link set ${ipls}
-done
-brctl addif ${bridge} ${pdev}
diff --git a/os-plugins/plugins/xen/init-hooks/20-nw-bridge-config/xen-bridge.sh b/os-plugins/plugins/xen/init-hooks/20-nw-bridge-config/xen-bridge.sh
deleted file mode 100755
index 7267969c..00000000
--- a/os-plugins/plugins/xen/init-hooks/20-nw-bridge-config/xen-bridge.sh
+++ /dev/null
@@ -1,42 +0,0 @@
-#!/bin/ash
-# Copyright (c) 2009 - OpenSLX GmbH
-#
-# This program is free software distributed under the GPL version 2.
-# See http://openslx.org/COPYING
-#
-# If you have any feedback please consult http://openslx.org/feedback and
-# send your feedback to feedback@openslx.org
-#
-# General information about OpenSLX can be found at http://openslx.org
-#
-# XEN specific init hook to create a bridge on the active network interface
-#############################################################################
-
-# configure Xen bridge xenbr0 (would it be possible to make it just br0?)
-
-modprobe ${MODPRV} netloop
-local ipls
-local vifnum="0"
-local bridge="xenbr${vifnum}"
-local netdev="eth${vifnum}"    # should be ${nwif}
-local pdev="p${netdev}"
-local vdev="veth${vifnum}"
-local vif0="vif0.${vifnum}"
-# fixme: that is the mac address of main ethernet device
-local mac=${macaddr}
-
-brctl addbr ${bridge}
-brctl stp ${bridge} off
-brctl setfd ${bridge} 0.000000000001
-brctl addif ${bridge} ${vif0}
-for ipls in "${netdev} name ${pdev}" "${vdev} name ${netdev}" \
-            "${pdev} down arp off" "${pdev} addr fe:ff:ff:ff:ff:ff" \
-            "${netdev} addr ${mac} arp on" "${netdev} addr ${mac} arp on" \
-            "${bridge} up" "${vif0} up" "${pdev} up" ; do
-  ip link set ${ipls}
-done
-brctl addif ${bridge} ${pdev}
-
-# fixme: sending back the variable to init does not work properly at the
-# moment
-nwif=${bridge}