[CORD 304] Modification of DhcpService to support OpenStack
- Now DhcpService can support DHCP requests from openstack
Change-Id: I30b51510290fe30b5f3bceb676e1d20bf8e33611
diff --git a/apps/dhcp/app/src/main/java/org/onosproject/dhcp/impl/DhcpManager.java b/apps/dhcp/app/src/main/java/org/onosproject/dhcp/impl/DhcpManager.java
index 96d94a2..4093f2d 100644
--- a/apps/dhcp/app/src/main/java/org/onosproject/dhcp/impl/DhcpManager.java
+++ b/apps/dhcp/app/src/main/java/org/onosproject/dhcp/impl/DhcpManager.java
@@ -16,6 +16,7 @@
package org.onosproject.dhcp.impl;
import com.google.common.collect.ImmutableSet;
+import com.google.common.collect.Lists;
import org.apache.felix.scr.annotations.Activate;
import org.apache.felix.scr.annotations.Component;
import org.apache.felix.scr.annotations.Deactivate;
@@ -77,7 +78,6 @@
import java.util.Objects;
import java.util.Set;
import java.util.concurrent.TimeUnit;
-
import static org.onlab.packet.MacAddress.valueOf;
import static org.onosproject.net.config.basics.SubjectFactories.APP_SUBJECT_FACTORY;
@@ -168,7 +168,6 @@
cfgService.addListener(cfgListener);
factories.forEach(cfgService::registerConfigFactory);
cfgListener.reconfigureNetwork(cfgService.getConfig(appId, DhcpConfig.class));
-
hostProviderService = hostProviderRegistry.register(hostProvider);
packetService.addProcessor(processor, PacketProcessor.director(0));
requestPackets();
@@ -242,8 +241,12 @@
}
@Override
- public boolean setStaticMapping(MacAddress macID, Ip4Address ipAddress) {
- return dhcpStore.assignStaticIP(macID, ipAddress);
+ public boolean setStaticMapping(MacAddress macID, Ip4Address ipAddress, boolean fromOpenStack,
+ List<Ip4Address> addressList) {
+ log.debug("setStaticMapping is called with Mac: {}, Ip: {} addressList: {}",
+ macID.toString(), ipAddress.toString(), addressList.toString());
+
+ return dhcpStore.assignStaticIP(macID, ipAddress, fromOpenStack, addressList);
}
@Override
@@ -268,6 +271,26 @@
*/
private Ethernet buildReply(Ethernet packet, Ip4Address ipOffered, byte outgoingMessageType) {
+ Ip4Address subnetMaskReply;
+ Ip4Address dhcpServerReply;
+ Ip4Address routerAddressReply;
+ Ip4Address domainServerReply;
+ IpAssignment ipAssignment;
+
+ ipAssignment = dhcpStore.getIpAssignmentFromAllocationMap(HostId.hostId(packet.getSourceMAC()));
+
+ if (ipAssignment != null && ipAssignment.fromOpenStack()) {
+ subnetMaskReply = ipAssignment.subnetMask();
+ dhcpServerReply = ipAssignment.dhcpServer();
+ domainServerReply = ipAssignment.domainServer();
+ routerAddressReply = ipAssignment.routerAddress();
+ } else {
+ subnetMaskReply = subnetMask;
+ dhcpServerReply = myIP;
+ routerAddressReply = routerAddress;
+ domainServerReply = domainServer;
+ }
+
// Ethernet Frame.
Ethernet ethReply = new Ethernet();
ethReply.setSourceMACAddress(myMAC);
@@ -278,7 +301,7 @@
// IP Packet
IPv4 ipv4Packet = (IPv4) packet.getPayload();
IPv4 ipv4Reply = new IPv4();
- ipv4Reply.setSourceAddress(myIP.toInt());
+ ipv4Reply.setSourceAddress(dhcpServerReply.toInt());
ipv4Reply.setDestinationAddress(ipOffered.toInt());
ipv4Reply.setTtl(packetTTL);
@@ -299,7 +322,7 @@
if (outgoingMessageType != DHCPPacketType.DHCPNAK.getValue()) {
dhcpReply.setYourIPAddress(ipOffered.toInt());
- dhcpReply.setServerIPAddress(myIP.toInt());
+ dhcpReply.setServerIPAddress(dhcpServerReply.toInt());
if (dhcpPacket.getGatewayIPAddress() == 0) {
ipv4Reply.setDestinationAddress(IP_BROADCAST.toInt());
}
@@ -322,7 +345,7 @@
option = new DHCPOption();
option.setCode(DHCP.DHCPOptionCode.OptionCode_DHCPServerIp.getValue());
option.setLength((byte) 4);
- option.setData(myIP.toOctets());
+ option.setData(dhcpServerReply.toOctets());
optionList.add(option);
if (outgoingMessageType != DHCPPacketType.DHCPNAK.getValue()) {
@@ -352,7 +375,7 @@
option = new DHCPOption();
option.setCode(DHCP.DHCPOptionCode.OptionCode_SubnetMask.getValue());
option.setLength((byte) 4);
- option.setData(subnetMask.toOctets());
+ option.setData(subnetMaskReply.toOctets());
optionList.add(option);
// Broadcast Address.
@@ -366,14 +389,14 @@
option = new DHCPOption();
option.setCode(DHCP.DHCPOptionCode.OptionCode_RouterAddress.getValue());
option.setLength((byte) 4);
- option.setData(routerAddress.toOctets());
+ option.setData(routerAddressReply.toOctets());
optionList.add(option);
// DNS Server Address.
option = new DHCPOption();
option.setCode(DHCP.DHCPOptionCode.OptionCode_DomainServer.getValue());
option.setLength((byte) 4);
- option.setData(domainServer.toOctets());
+ option.setData(domainServerReply.toOctets());
optionList.add(option);
}
@@ -384,7 +407,6 @@
optionList.add(option);
dhcpReply.setOptions(optionList);
-
udpReply.setPayload(dhcpReply);
ipv4Reply.setPayload(udpReply);
ethReply.setPayload(ipv4Reply);
@@ -449,31 +471,40 @@
if (incomingPacketType.getValue() == DHCPPacketType.DHCPDISCOVER.getValue()) {
outgoingPacketType = DHCPPacketType.DHCPOFFER;
- Ip4Address ipOffered = dhcpStore.suggestIP(hostId, requestedIP);
+ Ip4Address ipOffered = null;
+ ipOffered = dhcpStore.suggestIP(hostId, requestedIP);
+
if (ipOffered != null) {
Ethernet ethReply = buildReply(packet, ipOffered,
(byte) outgoingPacketType.getValue());
sendReply(context, ethReply);
}
-
} else if (incomingPacketType.getValue() == DHCPPacketType.DHCPREQUEST.getValue()) {
if (flagIfServerIP && flagIfRequestedIP) {
// SELECTING state
- if (myIP.equals(serverIP)) {
- if (dhcpStore.assignIP(hostId, requestedIP, leaseTime)) {
- outgoingPacketType = DHCPPacketType.DHCPACK;
- discoverHost(context, requestedIP);
- } else {
- outgoingPacketType = DHCPPacketType.DHCPNAK;
- }
+ if (dhcpStore.getIpAssignmentFromAllocationMap(HostId.hostId(clientMAC))
+ .fromOpenStack()) {
+ outgoingPacketType = DHCPPacketType.DHCPACK;
Ethernet ethReply = buildReply(packet, requestedIP, (byte) outgoingPacketType.getValue());
sendReply(context, ethReply);
+ } else {
+ if (myIP.equals(serverIP)) {
+ if (dhcpStore.assignIP(hostId, requestedIP, leaseTime, false, Lists.newArrayList())) {
+ outgoingPacketType = DHCPPacketType.DHCPACK;
+ discoverHost(context, requestedIP);
+ } else {
+ outgoingPacketType = DHCPPacketType.DHCPNAK;
+ }
+ Ethernet ethReply = buildReply(packet, requestedIP,
+ (byte) outgoingPacketType.getValue());
+ sendReply(context, ethReply);
+ }
}
} else if (flagIfRequestedIP) {
// INIT-REBOOT state
- if (dhcpStore.assignIP(hostId, requestedIP, leaseTime)) {
+ if (dhcpStore.assignIP(hostId, requestedIP, leaseTime, false, Lists.newArrayList())) {
outgoingPacketType = DHCPPacketType.DHCPACK;
Ethernet ethReply = buildReply(packet, requestedIP, (byte) outgoingPacketType.getValue());
sendReply(context, ethReply);
@@ -485,7 +516,7 @@
int ciaadr = dhcpPayload.getClientIPAddress();
if (ciaadr != 0) {
Ip4Address clientIaddr = Ip4Address.valueOf(ciaadr);
- if (dhcpStore.assignIP(hostId, clientIaddr, leaseTime)) {
+ if (dhcpStore.assignIP(hostId, clientIaddr, leaseTime, false, Lists.newArrayList())) {
outgoingPacketType = DHCPPacketType.DHCPACK;
discoverHost(context, clientIaddr);
} else if (packet.getEtherType() == Ethernet.TYPE_IPV4 &&