Eunjin Choi | 8fcdf28 | 2017-05-17 16:56:52 +0900 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2017-present Open Networking Laboratory |
| 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 com.fasterxml.jackson.databind.JsonNode; |
| 20 | import com.fasterxml.jackson.databind.ObjectMapper; |
| 21 | import com.google.common.collect.Lists; |
| 22 | import org.onlab.packet.ChassisId; |
| 23 | import org.onosproject.net.AnnotationKeys; |
| 24 | import org.onosproject.net.DefaultAnnotations; |
| 25 | import org.onosproject.net.Device; |
| 26 | import org.onosproject.net.DeviceId; |
| 27 | import org.onosproject.net.Port; |
| 28 | import org.onosproject.net.PortNumber; |
| 29 | import org.onosproject.net.SparseAnnotations; |
| 30 | import org.onosproject.net.device.DefaultDeviceDescription; |
| 31 | import org.onosproject.net.device.DefaultPortDescription; |
| 32 | import org.onosproject.net.device.DeviceDescription; |
| 33 | import org.onosproject.net.device.DeviceDescriptionDiscovery; |
| 34 | import org.onosproject.net.device.DeviceService; |
| 35 | import org.onosproject.net.device.PortDescription; |
| 36 | import org.onosproject.net.driver.AbstractHandlerBehaviour; |
| 37 | import org.onosproject.net.driver.DriverHandler; |
| 38 | import org.onosproject.protocol.rest.RestSBController; |
| 39 | import org.slf4j.Logger; |
| 40 | |
| 41 | import java.io.IOException; |
| 42 | import java.util.ArrayList; |
| 43 | import java.util.List; |
| 44 | |
| 45 | import static com.google.common.base.Preconditions.checkNotNull; |
| 46 | import static org.slf4j.LoggerFactory.getLogger; |
| 47 | |
| 48 | /** |
| 49 | * Discovers device information from a Cisco NXOS device. |
| 50 | */ |
| 51 | public class CiscoNxosDeviceDescription extends AbstractHandlerBehaviour |
| 52 | implements DeviceDescriptionDiscovery { |
| 53 | private final Logger log = getLogger(getClass()); |
| 54 | |
| 55 | private static final String UNKNOWN = "unknown"; |
| 56 | |
| 57 | private static final String SHOW_INTERFACES_CMD = "show interface"; |
| 58 | private static final String SHOW_VERSION_CMD = "show version"; |
| 59 | |
| 60 | private static final String MANUFACTURER = "manufacturer"; |
| 61 | private static final String CHASSIS_ID = "chassis_id"; |
| 62 | private static final String KICKSTART_VER = "kickstart_ver_str"; |
| 63 | private static final String ROW_INTERFACE = "ROW_interface"; |
| 64 | private static final String INTERFACE = "interface"; |
| 65 | private static final String ETH = "Eth"; |
| 66 | private static final String ETHERNET = "Ethernet"; |
| 67 | private static final String STATE = "state"; |
| 68 | private static final String UP = "up"; |
| 69 | private static final String ETH_BW = "eth_bw"; |
| 70 | private static final String SLASH = "/"; |
| 71 | private static final String ZERO = "0"; |
| 72 | private static final int ONE_THOUSAND = 1000; |
| 73 | |
| 74 | |
| 75 | @Override |
| 76 | public DeviceDescription discoverDeviceDetails() { |
| 77 | DriverHandler handler = handler(); |
| 78 | RestSBController controller = checkNotNull(handler.get(RestSBController.class)); |
| 79 | DeviceId deviceId = handler.data().deviceId(); |
| 80 | |
| 81 | ArrayList<String> cmd = new ArrayList<>(); |
| 82 | cmd.add(SHOW_VERSION_CMD); |
| 83 | |
| 84 | String req = NxApiRequest.generate(cmd, NxApiRequest.CommandType.CLI); |
| 85 | |
| 86 | String response = NxApiRequest.post(controller, deviceId, req); |
| 87 | |
| 88 | String mrf = UNKNOWN; |
| 89 | String hwVer = UNKNOWN; |
| 90 | String swVer = UNKNOWN; |
| 91 | String serialNum = UNKNOWN; |
| 92 | |
| 93 | try { |
| 94 | ObjectMapper om = new ObjectMapper(); |
| 95 | JsonNode json = om.readTree(response); |
| 96 | |
| 97 | JsonNode body = json.findValue("body"); |
| 98 | if (body != null) { |
| 99 | mrf = body.get(MANUFACTURER).asText(); |
| 100 | hwVer = body.get(CHASSIS_ID).asText(); |
| 101 | swVer = body.get(KICKSTART_VER).asText(); |
| 102 | } |
| 103 | } catch (IOException e) { |
| 104 | log.error("Failed to to retrieve Device Information {}", e); |
| 105 | } |
| 106 | |
| 107 | DeviceService deviceService = checkNotNull(handler().get(DeviceService.class)); |
| 108 | Device device = deviceService.getDevice(deviceId); |
| 109 | return new DefaultDeviceDescription(device.id().uri(), Device.Type.SWITCH, |
| 110 | mrf, hwVer, swVer, serialNum, |
| 111 | new ChassisId(), (SparseAnnotations) device.annotations()); |
| 112 | } |
| 113 | |
| 114 | @Override |
| 115 | public List<PortDescription> discoverPortDetails() { |
| 116 | DriverHandler handler = handler(); |
| 117 | RestSBController controller = checkNotNull(handler.get(RestSBController.class)); |
| 118 | DeviceId deviceId = handler.data().deviceId(); |
| 119 | |
| 120 | ArrayList<String> cmd = new ArrayList<>(); |
| 121 | cmd.add(SHOW_INTERFACES_CMD); |
| 122 | |
| 123 | String req = NxApiRequest.generate(cmd, NxApiRequest.CommandType.CLI); |
| 124 | |
| 125 | String response = NxApiRequest.post(controller, deviceId, req); |
| 126 | |
| 127 | // parse interface information from response |
| 128 | List<PortDescription> ports = Lists.newArrayList(); |
| 129 | try { |
| 130 | ObjectMapper om = new ObjectMapper(); |
| 131 | JsonNode json = om.readTree(response); |
| 132 | |
| 133 | JsonNode interfaces = json.findValue(ROW_INTERFACE); |
| 134 | if (interfaces != null) { |
| 135 | interfaces.forEach(itf -> { |
| 136 | String ifName = itf.get(INTERFACE).asText(); |
| 137 | if (ifName.startsWith(ETH)) { |
| 138 | String ifNum = ifName.substring(ETHERNET.length()).replace(SLASH, ZERO); |
| 139 | boolean state = itf.get(STATE).asText().equals(UP); |
| 140 | long portSpeed = itf.get(ETH_BW).asLong() / ONE_THOUSAND; //in Mbps |
| 141 | DefaultAnnotations.Builder annotations = DefaultAnnotations.builder() |
| 142 | .set(AnnotationKeys.PORT_NAME, ifName); |
| 143 | PortDescription desc = new DefaultPortDescription(PortNumber.portNumber(ifNum), state, |
| 144 | Port.Type.FIBER, portSpeed, annotations.build()); |
| 145 | ports.add(desc); |
| 146 | } |
| 147 | }); |
| 148 | } |
| 149 | } catch (IOException e) { |
| 150 | log.error("Failed to to retrieve Interfaces {}", e); |
| 151 | } |
| 152 | |
| 153 | return ports; |
| 154 | } |
| 155 | } |