sdn | b030291 | 2018-06-07 15:44:10 +0900 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2018-present Open Networking Foundation |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | package org.onosproject.drivers.cisco.rest; |
| 18 | |
| 19 | import static org.slf4j.LoggerFactory.getLogger; |
| 20 | |
Ray Milkey | 61b4c34 | 2018-06-08 09:36:57 -0700 | [diff] [blame] | 21 | import java.io.IOException; |
sdn | b030291 | 2018-06-07 15:44:10 +0900 | [diff] [blame] | 22 | import java.util.ArrayList; |
| 23 | import java.util.List; |
| 24 | import java.util.Objects; |
sdn | 4eae298 | 2018-06-10 17:39:11 +0900 | [diff] [blame] | 25 | import java.util.regex.Matcher; |
| 26 | import java.util.regex.Pattern; |
sdn | b030291 | 2018-06-07 15:44:10 +0900 | [diff] [blame] | 27 | |
sdn | 4eae298 | 2018-06-10 17:39:11 +0900 | [diff] [blame] | 28 | import org.onlab.packet.IpAddress; |
sdn | b030291 | 2018-06-07 15:44:10 +0900 | [diff] [blame] | 29 | import org.onosproject.drivers.cisco.rest.NxApiRequest.CommandType; |
| 30 | import org.onosproject.net.DeviceId; |
| 31 | import org.onosproject.net.behaviour.ControllerConfig; |
| 32 | import org.onosproject.net.behaviour.ControllerInfo; |
| 33 | import org.onosproject.net.driver.AbstractHandlerBehaviour; |
| 34 | import org.onosproject.net.driver.DriverHandler; |
| 35 | import org.slf4j.Logger; |
| 36 | |
| 37 | import com.fasterxml.jackson.databind.JsonNode; |
| 38 | import com.fasterxml.jackson.databind.ObjectMapper; |
| 39 | |
| 40 | /** |
| 41 | * Gets and Sets the openflow controller. |
| 42 | */ |
| 43 | public class ControllerConfigCiscoImpl extends AbstractHandlerBehaviour implements ControllerConfig { |
| 44 | private final Logger log = getLogger(getClass()); |
| 45 | |
| 46 | private static final String SHOW_OF_CONTROLLER_CMD = "show openflow switch 1 controllers"; |
| 47 | private static final String OPENFLOW_CMD = "openflow"; |
| 48 | private static final String SW1_CMD = "switch 1"; |
| 49 | private static final String DELETE_OF_CONFIG = "no switch 1"; |
| 50 | private static final String PROTO_VER_CMD = "protocol-version 1.3"; |
| 51 | private static final String PIPELINE_CMD = "pipeline 201"; |
| 52 | private static final String OF_CONTROLLER_CONF_CMD = "controller ipv4 %s port %d vrf %s security none"; |
| 53 | private static final String NO_SHUTDOWN_CMD = "no shutdown"; |
| 54 | private static final String COPY_RUNNING_CONFIG = "copy running-config startup-config"; |
| 55 | |
| 56 | @Override |
| 57 | public List<ControllerInfo> getControllers() { |
| 58 | List<ControllerInfo> controllers = new ArrayList<ControllerInfo>(); |
| 59 | DeviceId deviceId = handler().data().deviceId(); |
| 60 | |
| 61 | String response; |
| 62 | |
| 63 | // "show openflow switch 1 controller" command only shows outputs with cli_ascii command type |
| 64 | response = NxApiRequest.post(handler(), SHOW_OF_CONTROLLER_CMD, CommandType.CLI_ASCII); |
| 65 | |
| 66 | if (response == null) { |
| 67 | log.error("Failed to perform {} command on the device {} Response has Error/null", |
| 68 | SHOW_OF_CONTROLLER_CMD, deviceId); |
| 69 | return controllers; |
| 70 | } |
| 71 | |
| 72 | try { |
| 73 | ObjectMapper om = new ObjectMapper(); |
| 74 | JsonNode json = om.readTree(response); |
| 75 | if (json.has("result")) { |
| 76 | JsonNode res = json.get("result"); |
| 77 | String msg = res.findValue("msg").asText(); |
sdn | 4eae298 | 2018-06-10 17:39:11 +0900 | [diff] [blame] | 78 | controllers.addAll(parseControllerInfo(msg)); |
sdn | b030291 | 2018-06-07 15:44:10 +0900 | [diff] [blame] | 79 | } else if (json.has("error")) { |
| 80 | log.error("{} Response has IllegalStateException Error/null", deviceId); |
| 81 | return controllers; |
| 82 | } |
| 83 | } catch (IOException e) { |
| 84 | log.error("Exception thrown", e); |
| 85 | } |
| 86 | |
| 87 | return controllers; |
| 88 | } |
| 89 | |
| 90 | @Override |
| 91 | public void setControllers(List<ControllerInfo> controllers) { |
| 92 | DriverHandler handler = handler(); |
| 93 | DeviceId deviceId = handler.data().deviceId(); |
| 94 | |
| 95 | List<String> cmds = new ArrayList<>(); |
| 96 | cmds.add(OPENFLOW_CMD); |
| 97 | cmds.add(DELETE_OF_CONFIG); |
| 98 | cmds.add(SW1_CMD); |
| 99 | cmds.add(PROTO_VER_CMD); |
| 100 | cmds.add(PIPELINE_CMD); |
| 101 | |
| 102 | // can configure up to eight controllers |
| 103 | controllers.stream().limit(8).forEach(c -> cmds |
| 104 | .add(String.format(OF_CONTROLLER_CONF_CMD, c.ip().toString(), c.port(), "management"))); |
| 105 | cmds.add(NO_SHUTDOWN_CMD); |
| 106 | cmds.add(COPY_RUNNING_CONFIG); |
| 107 | String response = NxApiRequest.postClis(handler, cmds); |
| 108 | if (Objects.isNull(response)) { |
| 109 | throw new NullPointerException("Response is null"); |
| 110 | } |
| 111 | |
Ray Milkey | 4dda814 | 2018-06-08 08:55:37 -0700 | [diff] [blame] | 112 | try { |
| 113 | ObjectMapper om = new ObjectMapper(); |
| 114 | JsonNode json = om.readTree(response); |
| 115 | //TODO parse error messages. |
| 116 | if (json.has("error")) { |
| 117 | log.error("{} Response has IllegalStateException Error", deviceId); |
| 118 | return; |
sdn | b030291 | 2018-06-07 15:44:10 +0900 | [diff] [blame] | 119 | } |
Ray Milkey | 4dda814 | 2018-06-08 08:55:37 -0700 | [diff] [blame] | 120 | } catch (IOException e) { |
| 121 | log.error("Exception thrown", e); |
sdn | b030291 | 2018-06-07 15:44:10 +0900 | [diff] [blame] | 122 | } |
| 123 | } |
sdn | 4eae298 | 2018-06-10 17:39:11 +0900 | [diff] [blame] | 124 | |
| 125 | @Override |
| 126 | public void removeControllers(List<ControllerInfo> controllers) { |
| 127 | DriverHandler handler = handler(); |
| 128 | DeviceId deviceId = handler.data().deviceId(); |
| 129 | |
| 130 | List<String> cmds = new ArrayList<>(); |
| 131 | cmds.add(OPENFLOW_CMD); |
| 132 | cmds.add(DELETE_OF_CONFIG); |
| 133 | cmds.add(COPY_RUNNING_CONFIG); |
| 134 | |
| 135 | String response = NxApiRequest.postClis(handler, cmds); |
| 136 | if (Objects.isNull(response)) { |
| 137 | log.error(" Device {} Response is null", deviceId); |
| 138 | return; |
| 139 | } |
| 140 | |
| 141 | try { |
| 142 | ObjectMapper om = new ObjectMapper(); |
| 143 | JsonNode json = om.readTree(response); |
| 144 | if (json.has("errors")) { |
| 145 | log.error("{} Response has JSON Format Error {}", deviceId, json); |
| 146 | return; |
| 147 | } |
| 148 | //TODO parse error messages. |
| 149 | } catch (IOException e) { |
| 150 | log.error("Exception thrown", e); |
| 151 | } |
| 152 | } |
| 153 | |
| 154 | private List<ControllerInfo> parseControllerInfo(String data) { |
| 155 | final String regex = "(\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}):(\\d{1,5})"; |
| 156 | Pattern pattern = Pattern.compile(regex); |
| 157 | Matcher match = pattern.matcher(data); |
| 158 | List<ControllerInfo> controllers = new ArrayList<ControllerInfo>(); |
| 159 | while (match.find()) { |
| 160 | String str = match.group(); |
| 161 | String[] ips = str.split(":"); |
| 162 | ControllerInfo info = new ControllerInfo(IpAddress.valueOf(ips[0]), |
| 163 | Integer.parseInt(ips[1]), "tcp"); |
| 164 | controllers.add(info); |
| 165 | } |
| 166 | |
| 167 | return controllers; |
| 168 | } |
| 169 | |
| 170 | |
sdn | b030291 | 2018-06-07 15:44:10 +0900 | [diff] [blame] | 171 | } |