| /* |
| * Copyright 2018-present Open Networking Foundation |
| * |
| * 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.rest; |
| |
| import static org.slf4j.LoggerFactory.getLogger; |
| |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.Objects; |
| import java.util.regex.Matcher; |
| import java.util.regex.Pattern; |
| |
| import org.onlab.packet.IpAddress; |
| import org.onosproject.drivers.cisco.rest.NxApiRequest.CommandType; |
| import org.onosproject.net.DeviceId; |
| import org.onosproject.net.behaviour.ControllerConfig; |
| import org.onosproject.net.behaviour.ControllerInfo; |
| import org.onosproject.net.driver.AbstractHandlerBehaviour; |
| import org.onosproject.net.driver.DriverHandler; |
| import org.slf4j.Logger; |
| |
| import com.fasterxml.jackson.databind.JsonNode; |
| import com.fasterxml.jackson.databind.ObjectMapper; |
| |
| /** |
| * Gets and Sets the openflow controller. |
| */ |
| public class ControllerConfigCiscoImpl extends AbstractHandlerBehaviour implements ControllerConfig { |
| private final Logger log = getLogger(getClass()); |
| |
| private static final String SHOW_OF_CONTROLLER_CMD = "show openflow switch 1 controllers"; |
| private static final String OPENFLOW_CMD = "openflow"; |
| private static final String SW1_CMD = "switch 1"; |
| private static final String DELETE_OF_CONFIG = "no switch 1"; |
| private static final String PROTO_VER_CMD = "protocol-version 1.3"; |
| private static final String N9K_PIPELINE_CMD = "pipeline 201"; |
| private static final String N7K_PIPELINE_CMD = "pipeline 301"; |
| private static final String OF_CONTROLLER_CONF_CMD = "controller ipv4 %s port %d vrf %s security none"; |
| private static final String NO_SHUTDOWN_CMD = "no shutdown"; |
| private static final String SHOW_VERSION = "show version"; |
| private static final String COPY_RUNNING_CONFIG = "copy running-config startup-config"; |
| |
| @Override |
| public List<ControllerInfo> getControllers() { |
| List<ControllerInfo> controllers = new ArrayList<ControllerInfo>(); |
| DeviceId deviceId = handler().data().deviceId(); |
| |
| String response; |
| |
| // "show openflow switch 1 controller" command only shows outputs with cli_ascii command type |
| response = NxApiRequest.post(handler(), SHOW_OF_CONTROLLER_CMD, CommandType.CLI_ASCII); |
| |
| if (response == null) { |
| log.error("Failed to perform {} command on the device {} Response has Error/null", |
| SHOW_OF_CONTROLLER_CMD, deviceId); |
| return controllers; |
| } |
| |
| try { |
| ObjectMapper om = new ObjectMapper(); |
| JsonNode json = om.readTree(response); |
| if (json.has("result")) { |
| JsonNode res = json.get("result"); |
| String msg = res.findValue("msg").asText(); |
| controllers.addAll(parseControllerInfo(msg)); |
| } else if (json.has("error")) { |
| log.error("{} Response has IllegalStateException Error/null", deviceId); |
| return controllers; |
| } |
| } catch (IOException e) { |
| log.error("Exception thrown", e); |
| } |
| |
| return controllers; |
| } |
| |
| @Override |
| public void setControllers(List<ControllerInfo> controllers) { |
| DriverHandler handler = handler(); |
| DeviceId deviceId = handler.data().deviceId(); |
| |
| List<String> cmds = new ArrayList<>(); |
| cmds.add(OPENFLOW_CMD); |
| cmds.add(DELETE_OF_CONFIG); |
| cmds.add(SW1_CMD); |
| cmds.add(PROTO_VER_CMD); |
| if (checkSwitchN7K(handler)) { |
| cmds.add(N7K_PIPELINE_CMD); |
| log.info("This is N7K Switch"); |
| } else { |
| cmds.add(N9K_PIPELINE_CMD); |
| log.info("This is N9K Switch"); |
| } |
| // can configure up to eight controllers |
| controllers.stream().limit(8).forEach(c -> cmds |
| .add(String.format(OF_CONTROLLER_CONF_CMD, c.ip().toString(), c.port(), "management"))); |
| cmds.add(NO_SHUTDOWN_CMD); |
| cmds.add(COPY_RUNNING_CONFIG); |
| String response = NxApiRequest.postClis(handler, cmds); |
| if (Objects.isNull(response)) { |
| throw new NullPointerException("Response is null"); |
| } |
| |
| try { |
| ObjectMapper om = new ObjectMapper(); |
| JsonNode json = om.readTree(response); |
| //TODO parse error messages. |
| if (json.has("error")) { |
| log.error("{} Response has IllegalStateException Error", deviceId); |
| return; |
| } |
| } catch (IOException e) { |
| log.error("Exception thrown", e); |
| } |
| } |
| |
| @Override |
| public void removeControllers(List<ControllerInfo> controllers) { |
| DriverHandler handler = handler(); |
| DeviceId deviceId = handler.data().deviceId(); |
| |
| List<String> cmds = new ArrayList<>(); |
| cmds.add(OPENFLOW_CMD); |
| cmds.add(DELETE_OF_CONFIG); |
| cmds.add(COPY_RUNNING_CONFIG); |
| |
| String response = NxApiRequest.postClis(handler, cmds); |
| if (Objects.isNull(response)) { |
| log.error(" Device {} Response is null", deviceId); |
| return; |
| } |
| |
| try { |
| ObjectMapper om = new ObjectMapper(); |
| JsonNode json = om.readTree(response); |
| if (json.has("errors")) { |
| log.error("{} Response has JSON Format Error {}", deviceId, json); |
| return; |
| } |
| //TODO parse error messages. |
| } catch (IOException e) { |
| log.error("Exception thrown", e); |
| } |
| } |
| |
| private List<ControllerInfo> parseControllerInfo(String data) { |
| final String regex = "(\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}):(\\d{1,5})"; |
| Pattern pattern = Pattern.compile(regex); |
| Matcher match = pattern.matcher(data); |
| List<ControllerInfo> controllers = new ArrayList<ControllerInfo>(); |
| while (match.find()) { |
| String str = match.group(); |
| String[] ips = str.split(":"); |
| ControllerInfo info = new ControllerInfo(IpAddress.valueOf(ips[0]), |
| Integer.parseInt(ips[1]), "tcp"); |
| controllers.add(info); |
| } |
| |
| return controllers; |
| } |
| |
| |
| public boolean checkSwitchN7K(DriverHandler handler) { |
| |
| String response = NxApiRequest.postCli(handler, SHOW_VERSION); |
| |
| String msg = ""; |
| |
| try { |
| ObjectMapper om = new ObjectMapper(); |
| JsonNode json = om.readTree(response); |
| JsonNode res = json.get("result"); |
| msg = res.findValue("msg").asText(); |
| } catch (IOException e) { |
| log.error("Exception thrown", e); |
| return false; |
| } |
| |
| if (msg.contains("Nexus7700")) { |
| return true; |
| } |
| return false; |
| } |
| } |