bug 10804 virtual router support for per-vm default network

api/src/com/cloud/agent/api/routing/DhcpEntryCommand.java

@@ -27,6 +27,9 @@ public class DhcpEntryCommand extends NetworkElementCommand {
     String dns;
     String gateway;
     String nextServer;
+    String defaultRouter;
+    String staticRoutes;
+
     
     protected DhcpEntryCommand() {
         
@@ -77,4 +80,21 @@ public class DhcpEntryCommand extends NetworkElementCommand {
         return nextServer;
     }
     
+    public String getDefaultRouter() {
+        return defaultRouter;
+    }
+
+    public void setDefaultRouter(String defaultRouter) {
+        this.defaultRouter = defaultRouter;
+    }
+
+    public String getStaticRoutes() {
+        return staticRoutes;
+    }
+
+    public void setStaticRoutes(String staticRoutes) {
+        this.staticRoutes = staticRoutes;
+    }
+
+    
 }

core/src/com/cloud/hypervisor/xen/resource/CitrixResourceBase.java

@@ -1436,6 +1436,12 @@ public abstract class CitrixResourceBase implements ServerResource, HypervisorRe
         args += " -v " + cmd.getVmIpAddress();
         args += " -m " + cmd.getVmMac();
         args += " -n " + cmd.getVmName();
+        if (cmd.getDefaultRouter() != null) {
+            args += " -d " + cmd.getDefaultRouter();
+        }
+        if (cmd.getStaticRoutes() != null) {
+            args += " -s " + cmd.getStaticRoutes();
+        }
         String result = callHostPlugin(conn, "vmops", "saveDhcpEntry", "args", args);
         if (result == null || result.isEmpty()) {
             return new Answer(cmd, false, "DhcpEntry failed");

patches/systemvm/debian/config/root/edithosts.sh

@@ -20,9 +20,22 @@
   #
  
 # edithosts.sh -- edit the dhcphosts file on the routing domain
-# $1 : the mac address
+# $mac : the mac address
-# $2 : the associated ip address
+# $ip : the associated ip address
-# $3 : the hostname
+# $host : the hostname
+# $4 : default router
+# $5 : comma separated static routes
+
+mac=$1
+ip=$2
+host=$3
+dflt=$4
+routes=$5
+
+DHCP_HOSTS=/etc/dhcphosts.txt
+DHCP_OPTS=/etc/dhcpopts.txt
+DHCP_LEASES=/var/lib/misc/dnsmasq.leases
+HOSTS=/etc/hosts
 
 source /root/func.sh
 
@@ -58,29 +71,47 @@ wait_for_dnsmasq () {
 
 logger -t cloud "edithosts: update $1 $2 $3 to hosts"
 
-[ ! -f /etc/dhcphosts.txt ] && touch /etc/dhcphosts.txt
+[ ! -f $DHCP_HOSTS ] && touch $DHCP_HOSTS
-[ ! -f /var/lib/misc/dnsmasq.leases ] && touch /var/lib/misc/dnsmasq.leases
+[ ! -f $DHCP_OPTS ] && touch $DHCP_OPTS
+[ ! -f $DHCP_LEASES ] && touch $DHCP_LEASES
 
 #delete any previous entries from the dhcp hosts file
-sed -i  /$1/d /etc/dhcphosts.txt 
+sed -i  /$mac/d $DHCP_HOSTS 
-sed -i  /$2,/d /etc/dhcphosts.txt 
+sed -i  /$ip,/d $DHCP_HOSTS 
-sed -i  /$3,/d /etc/dhcphosts.txt 
+sed -i  /$host,/d $DHCP_HOSTS 
+
 
 #put in the new entry
-echo "$1,$2,$3,infinite" >>/etc/dhcphosts.txt
+echo "$mac,$ip,$host,infinite" >>$DHCP_HOSTS
 
 #delete leases to supplied mac and ip addresses
-sed -i  /$1/d /var/lib/misc/dnsmasq.leases 
+sed -i  /$mac/d $DHCP_LEASES 
-sed -i  /"$2 "/d /var/lib/misc/dnsmasq.leases 
+sed -i  /"$ip "/d $DHCP_LEASES 
-sed -i  /"$3 "/d /var/lib/misc/dnsmasq.leases 
+sed -i  /"$host "/d $DHCP_LEASES 
 
 #put in the new entry
-echo "0 $1 $2 $3 *" >> /var/lib/misc/dnsmasq.leases
+echo "0 $mac $ip $host *" >> $DHCP_LEASES
 
 #edit hosts file as well
-sed -i  /"$2 "/d /etc/hosts
+sed -i  /"$ip "/d $HOSTS
-sed -i  /"$3"/d /etc/hosts
+sed -i  /"$host "/d $HOSTS
-echo "$2 $3" >> /etc/hosts
+echo "$ip $host" >> $HOSTS
+
+if [ "$dflt" != "" ]
+then
+  #make sure dnsmasq looks into options file
+  sed -i /dhcp-optsfile/d /etc/dnsmasq.conf
+  echo "dhcp-optsfile=$DHCP_OPTS" >> /etc/dnsmasq.conf
+
+  tag=$(echo $ip | tr '.' '_')
+  sed -i /$tag/d $DHCP_OPTS
+  echo "$tag,3,$dflt" >> $DHCP_OPTS
+  [ "$routes" != "" ] && echo "$tag,121,$routes" >> $DHCP_OPTS
+  #delete entry we just put in because we need a tag
+  sed -i  /$mac/d $DHCP_HOSTS 
+  #put it back with a tag
+  echo "$mac,set:$tag,$ip,$host,infinite" >>$DHCP_HOSTS
+fi
 
 # make dnsmasq re-read files
 pid=$(pidof dnsmasq)

scripts/network/domr/dhcp_entry.sh

@@ -37,7 +37,9 @@ add_dhcp_entry() {
   local mac=$2
   local ip=$3
   local vm=$4
-  ssh -p 3922 -o StrictHostKeyChecking=no -i $cert root@$domr "/root/edithosts.sh $mac $ip $vm" >/dev/null
+  local dfltrt=$5
+  local staticrt=$6
+  ssh -p 3922 -o StrictHostKeyChecking=no -i $cert root@$domr "/root/edithosts.sh $mac $ip $vm $dfltrt $staticrt" >/dev/null
   return $?
 }
 
@@ -45,8 +47,10 @@ domrIp=
 vmMac=
 vmIp=
 vmName=
+staticrt=
+dfltrt=
 
-while getopts 'r:m:v:n:' OPTION
+while getopts 'r:m:v:n:d:s:' OPTION
 do
   case $OPTION in
   r)	domrIp="$OPTARG"
@@ -57,12 +61,16 @@ do
 		;;
   n)	vmName="$OPTARG"
 		;;
+  s)	staticrt="$OPTARG"
+		;;
+  d)	dfltrt="$OPTARG"
+		;;
   ?)    usage
 		exit 1
 		;;
   esac
 done
 
-add_dhcp_entry $domrIp $vmMac $vmIp $vmName
+add_dhcp_entry $domrIp $vmMac $vmIp $vmName $dfltrt $staticrt
 
 exit $?