[GEANT] Interface configuration for Cisco devices.

Change-Id: Ieb9979c3c4d7ebbf996d787a1528ba0548342572
diff --git a/drivers/cisco/src/main/java/org/onosproject/drivers/cisco/CiscoDriversLoader.java b/drivers/cisco/src/main/java/org/onosproject/drivers/cisco/CiscoDriversLoader.java
new file mode 100644
index 0000000..1e1d19d
--- /dev/null
+++ b/drivers/cisco/src/main/java/org/onosproject/drivers/cisco/CiscoDriversLoader.java
@@ -0,0 +1,30 @@
+/*
+ * Copyright 2016 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.onosproject.drivers.cisco;
+
+import org.apache.felix.scr.annotations.Component;
+import org.onosproject.net.driver.AbstractDriverLoader;
+
+/**
+ * Loader for Cisco device drivers.
+ */
+@Component(immediate = true)
+public class CiscoDriversLoader extends AbstractDriverLoader {
+    public CiscoDriversLoader() {
+        super("/cisco-drivers.xml");
+    }
+}
diff --git a/drivers/cisco/src/main/java/org/onosproject/drivers/cisco/InterfaceConfigCiscoSmXImpl.java b/drivers/cisco/src/main/java/org/onosproject/drivers/cisco/InterfaceConfigCiscoSmXImpl.java
new file mode 100644
index 0000000..6df1076
--- /dev/null
+++ b/drivers/cisco/src/main/java/org/onosproject/drivers/cisco/InterfaceConfigCiscoSmXImpl.java
@@ -0,0 +1,171 @@
+/*
+ *
+ *  * Copyright 2016 Open Networking Laboratory
+ *  *
+ *  * Licensed under the Apache License, Version 2.0 (the "License");
+ *  * you may not use this file except in compliance with the License.
+ *  * You may obtain a copy of the License at
+ *  *
+ *  *     http://www.apache.org/licenses/LICENSE-2.0
+ *  *
+ *  * Unless required by applicable law or agreed to in writing, software
+ *  * distributed under the License is distributed on an "AS IS" BASIS,
+ *  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  * See the License for the specific language governing permissions and
+ *  * limitations under the License.
+ *
+ */
+
+package org.onosproject.drivers.cisco;
+
+import org.onlab.packet.VlanId;
+import org.onosproject.drivers.utilities.XmlConfigParser;
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.behaviour.InterfaceConfig;
+import org.onosproject.net.driver.AbstractHandlerBehaviour;
+import org.onosproject.netconf.NetconfController;
+import org.onosproject.netconf.NetconfException;
+import org.onosproject.netconf.NetconfSession;
+import org.slf4j.Logger;
+
+import java.io.ByteArrayInputStream;
+import java.nio.charset.StandardCharsets;
+
+import static com.google.common.base.Preconditions.checkNotNull;
+import static org.slf4j.LoggerFactory.getLogger;
+
+/**
+ * Configures interfaces on Cisco SM-X devices.
+ */
+public class InterfaceConfigCiscoSmXImpl extends AbstractHandlerBehaviour
+        implements InterfaceConfig {
+
+    private final Logger log = getLogger(getClass());
+
+    /**
+     * Adds an interface to a VLAN.
+     * @param deviceId the device ID
+     * @param intf the name of the interface
+     * @param vlanId the VLAN ID
+     * @return the result of operation
+     */
+    @Override
+    public boolean addInterfaceToVlan(DeviceId deviceId, String intf, VlanId vlanId) {
+        NetconfController controller = checkNotNull(handler()
+                                       .get(NetconfController.class));
+
+        NetconfSession session = controller.getDevicesMap().get(handler()
+                                 .data().deviceId()).getSession();
+        String reply;
+        try {
+            reply = session.requestSync(addInterfaceToVlanBuilder(intf, vlanId)).trim();
+        } catch (NetconfException e) {
+            log.error("Failed to configure VLAN ID {} on device {} port {}.",
+                      vlanId, deviceId, intf, e);
+            return false;
+        }
+
+        return XmlConfigParser.configSuccess(XmlConfigParser.loadXml(
+                new ByteArrayInputStream(reply.getBytes(StandardCharsets.UTF_8))));
+    }
+
+    /**
+     * Builds a request crafted to add an interface to a VLAN.
+     * @param intf the name of the interface
+     * @param vlanId the VLAN ID
+     * @return the request string.
+     */
+    private String addInterfaceToVlanBuilder(String intf, VlanId vlanId) {
+        StringBuilder rpc = new StringBuilder("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
+        rpc.append("<rpc xmlns=\"urn:ietf:params:xml:ns:netconf:base:1.0\" ");
+        rpc.append("xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\">");
+        rpc.append("<edit-config>");
+        rpc.append("<target>");
+        rpc.append("<running/>");
+        rpc.append("</target>");
+        rpc.append("<config>");
+        rpc.append("<xml-config-data>");
+        rpc.append("<Device-Configuration><interface><Param>");
+        rpc.append(intf);
+        rpc.append("</Param>");
+        rpc.append("<ConfigIf-Configuration>");
+        rpc.append("<switchport><access><vlan><VLANIDVLANPortAccessMode>");
+        rpc.append(vlanId);
+        rpc.append("</VLANIDVLANPortAccessMode></vlan></access></switchport>");
+        rpc.append("<switchport><mode><access/></mode></switchport>");
+        rpc.append("</ConfigIf-Configuration>");
+        rpc.append("</interface>");
+        rpc.append("</Device-Configuration>");
+        rpc.append("</xml-config-data>");
+        rpc.append("</config>");
+        rpc.append("</edit-config>");
+        rpc.append("</rpc>");
+
+        return rpc.toString();
+    }
+
+    /**
+     * Configures an interface as trunk for VLAN.
+     * @param deviceId the device ID
+     * @param intf the name of the interface
+     * @param vlanId the VLAN ID
+     * @return the result of operation
+     */
+    @Override
+    public boolean addTrunkInterface(DeviceId deviceId, String intf, VlanId vlanId) {
+        NetconfController controller = checkNotNull(handler()
+                                       .get(NetconfController.class));
+
+        NetconfSession session = controller.getDevicesMap().get(handler()
+                                 .data().deviceId()).getSession();
+        String reply;
+        try {
+            reply = session.requestSync(addTrunkInterface(intf, vlanId)).trim();
+        } catch (NetconfException e) {
+            log.error("Failed to configure VLAN ID {} on device {} port {}.",
+                      vlanId, deviceId, intf, e);
+            return false;
+        }
+
+        return XmlConfigParser.configSuccess(XmlConfigParser.loadXml(
+                new ByteArrayInputStream(reply.getBytes(StandardCharsets.UTF_8))));
+    }
+
+    /**
+     * Builds a request crafted to configure an interface as trunk for VLAN.
+     * @param intf the name of the interface
+     * @param vlanId the VLAN ID
+     * @return the request string.
+     */
+    private String addTrunkInterface(String intf, VlanId vlanId) {
+        StringBuilder rpc = new StringBuilder("<?xml version=\"1.0\" encoding=\"UTF-8\"?>");
+        rpc.append("<rpc xmlns=\"urn:ietf:params:xml:ns:netconf:base:1.0\" ");
+        rpc.append("xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\">");
+        rpc.append("<edit-config>");
+        rpc.append("<target>");
+        rpc.append("<running/>");
+        rpc.append("</target>");
+        rpc.append("<config>");
+        rpc.append("<xml-config-data>");
+        rpc.append("<Device-Configuration><interface><Param>");
+        rpc.append(intf);
+        rpc.append("</Param>");
+        rpc.append("<ConfigIf-Configuration>");
+        rpc.append("<switchport><trunk><encapsulation><dot1q/></encapsulation></trunk></switchport>");
+        rpc.append("<switchport><trunk><allowed><vlan><VLANIDsAllowedVLANsPortTrunkingMode>");
+        rpc.append(vlanId);
+        rpc.append("</VLANIDsAllowedVLANsPortTrunkingMode></vlan></allowed></trunk></switchport>");
+        rpc.append("<switchport><mode><trunk/></mode></switchport>");
+        rpc.append("</ConfigIf-Configuration>");
+        rpc.append("</interface>");
+        rpc.append("</Device-Configuration>");
+        rpc.append("</xml-config-data>");
+        rpc.append("</config>");
+        rpc.append("</edit-config>");
+        rpc.append("</rpc>");
+
+        return rpc.toString();
+    }
+
+}
+
diff --git a/drivers/cisco/src/main/java/org/onosproject/drivers/cisco/package-info.java b/drivers/cisco/src/main/java/org/onosproject/drivers/cisco/package-info.java
new file mode 100644
index 0000000..86ca832
--- /dev/null
+++ b/drivers/cisco/src/main/java/org/onosproject/drivers/cisco/package-info.java
@@ -0,0 +1,20 @@
+/*
+ * Copyright 2016 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * Package for Cisco device drivers.
+ */
+package org.onosproject.drivers.cisco;
\ No newline at end of file
diff --git a/drivers/cisco/src/main/resources/cisco-drivers.xml b/drivers/cisco/src/main/resources/cisco-drivers.xml
new file mode 100644
index 0000000..2c07021
--- /dev/null
+++ b/drivers/cisco/src/main/resources/cisco-drivers.xml
@@ -0,0 +1,23 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ Copyright 2016 Open Networking Laboratory
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~     http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+<drivers>
+    <driver name="cisco-netconf" extends="netconf" manufacturer="Cisco"
+            hwVersion="SM-X" swVersion="IOS 15">
+        <behaviour api="org.onosproject.net.behaviour.InterfaceConfig"
+                   impl="org.onosproject.drivers.cisco.InterfaceConfigCiscoSmXImpl"/>
+    </driver>
+</drivers>