Yi Tseng | 2e5d99e | 2017-06-06 10:58:46 -0700 | [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.dhcprelay.cli; |
| 18 | |
| 19 | import org.apache.karaf.shell.commands.Command; |
| 20 | import org.onlab.packet.Ip4Address; |
| 21 | import org.onlab.packet.IpAddress; |
| 22 | import org.onlab.packet.MacAddress; |
| 23 | import org.onlab.packet.VlanId; |
| 24 | import org.onosproject.cli.AbstractShellCommand; |
| 25 | import org.onosproject.core.ApplicationId; |
| 26 | import org.onosproject.core.CoreService; |
| 27 | import org.onosproject.dhcprelay.DhcpRelayConfig; |
| 28 | import org.onosproject.dhcprelay.DhcpRelayManager; |
| 29 | import org.onosproject.dhcprelay.DhcpRelayService; |
| 30 | import org.onosproject.dhcprelay.store.DhcpRecord; |
| 31 | import org.onosproject.net.ConnectPoint; |
| 32 | import org.onosproject.net.Host; |
| 33 | import org.onosproject.net.HostId; |
| 34 | import org.onosproject.net.config.NetworkConfigRegistry; |
| 35 | import org.onosproject.net.host.HostService; |
| 36 | |
| 37 | import java.text.DateFormat; |
| 38 | import java.text.SimpleDateFormat; |
| 39 | import java.util.Collection; |
| 40 | import java.util.Date; |
| 41 | import java.util.Optional; |
| 42 | |
| 43 | /** |
| 44 | * Prints DHCP server and DHCP relay status. |
| 45 | */ |
| 46 | @Command(scope = "onos", name = "dhcp-relay", description = "DHCP relay app cli.") |
| 47 | public class DhcpRelayCommand extends AbstractShellCommand { |
| 48 | private static final String HEADER = "DHCP relay records ([D]: Directly connected):"; |
| 49 | private static final String NO_RECORDS = "No DHCP relay record found"; |
| 50 | private static final String BASIC_HOST_D = "%s/%s: %s[D], %s"; |
| 51 | private static final String BASIC_HOST = "%s/%s: %s, %s"; |
| 52 | private static final String NO_IP4 = "\tIPv4: N/A"; |
| 53 | private static final String IP4_INFO_D = "\tIPv4: %s: %s"; |
| 54 | private static final String IP4_INFO = "\tIPv4: %s via %s: %s"; |
| 55 | private static final String NO_IP6 = "\tIPv6: N/A"; |
| 56 | private static final String IP6_INFO_D = "\tIPv6: %s: %s"; |
| 57 | private static final String IP6_INFO = "\tIPv6: %s via %s: %s"; |
| 58 | private static final String DHCP_SERVER_GW = "DHCP Server: %s, %s via %s"; |
| 59 | private static final String DHCP_SERVER = "DHCP Server: %s, %s"; |
| 60 | private static final String MISSING_SERVER_CFG = "DHCP Server info not available"; |
| 61 | |
| 62 | private static final DhcpRelayService DHCP_RELAY_SERVICE = get(DhcpRelayService.class); |
| 63 | private static final NetworkConfigRegistry CFG_SERVICE = get(NetworkConfigRegistry.class); |
| 64 | private static final HostService HOST_SERVICE = get(HostService.class); |
| 65 | private static final CoreService CORE_SERVICE = get(CoreService.class); |
| 66 | private static final ApplicationId APP_ID = |
| 67 | CORE_SERVICE.getAppId(DhcpRelayManager.DHCP_RELAY_APP); |
| 68 | |
| 69 | @Override |
| 70 | protected void execute() { |
| 71 | DhcpRelayConfig cfg = CFG_SERVICE.getConfig(APP_ID, DhcpRelayConfig.class); |
| 72 | if (cfg == null) { |
| 73 | print(MISSING_SERVER_CFG); |
| 74 | return; |
| 75 | } |
| 76 | |
| 77 | // DHCP server information |
| 78 | ConnectPoint connectPoint = cfg.getDhcpServerConnectPoint(); |
| 79 | Ip4Address gatewayAddress = cfg.getDhcpGatewayIp(); |
| 80 | Ip4Address serverIp = cfg.getDhcpServerIp(); |
| 81 | if (gatewayAddress != null) { |
| 82 | print(DHCP_SERVER_GW, connectPoint, serverIp, gatewayAddress); |
| 83 | } else { |
| 84 | print(DHCP_SERVER, connectPoint, serverIp); |
| 85 | } |
| 86 | |
| 87 | // DHCP records |
| 88 | Collection<DhcpRecord> records = DHCP_RELAY_SERVICE.getDhcpRecords(); |
| 89 | if (records.isEmpty()) { |
| 90 | print(NO_RECORDS); |
| 91 | return; |
| 92 | } |
| 93 | print(HEADER); |
| 94 | records.forEach(record -> { |
| 95 | DateFormat df = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss.SSS"); |
| 96 | String lastSeen = df.format(new Date(record.lastSeen())); |
| 97 | |
| 98 | if (record.directlyConnected()) { |
| 99 | print(BASIC_HOST_D, record.macAddress(), record.vlanId(), |
| 100 | record.locations(), lastSeen); |
| 101 | } else { |
| 102 | print(BASIC_HOST, record.macAddress(), record.vlanId(), |
| 103 | record.locations(), lastSeen); |
| 104 | } |
| 105 | |
| 106 | if (record.ip4Status().isPresent()) { |
| 107 | if (record.directlyConnected()) { |
| 108 | print(IP4_INFO_D, |
| 109 | record.ip4Address().orElse(null), |
| 110 | record.ip4Status().orElse(null)); |
| 111 | } else { |
| 112 | IpAddress gatewayIp = record.nextHop() |
| 113 | .flatMap(mac -> findGatewayIp(mac, record.vlanId())) |
| 114 | .orElse(null); |
| 115 | print(IP4_INFO, |
| 116 | record.ip4Address().orElse(null), |
| 117 | gatewayIp, |
| 118 | record.ip4Status().orElse(null)); |
| 119 | } |
| 120 | } else { |
| 121 | print(NO_IP4); |
| 122 | } |
| 123 | |
| 124 | if (record.ip6Status().isPresent()) { |
| 125 | if (record.directlyConnected()) { |
| 126 | print(IP6_INFO_D, |
| 127 | record.ip6Address().orElse(null), |
| 128 | record.ip6Status().orElse(null)); |
| 129 | } else { |
| 130 | IpAddress gatewayIp = record.nextHop() |
| 131 | .flatMap(mac -> findGatewayIp(mac, record.vlanId())) |
| 132 | .orElse(null); |
| 133 | print(IP6_INFO, |
| 134 | record.ip6Address().orElse(null), |
| 135 | gatewayIp, |
| 136 | record.ip6Status().orElse(null)); |
| 137 | } |
| 138 | } else { |
| 139 | print(NO_IP6); |
| 140 | } |
| 141 | }); |
| 142 | } |
| 143 | |
| 144 | private Optional<IpAddress> findGatewayIp(MacAddress macAddress, VlanId vlanId) { |
| 145 | Host host = HOST_SERVICE.getHost(HostId.hostId(macAddress, vlanId)); |
| 146 | return host.ipAddresses().stream().findFirst(); |
| 147 | } |
| 148 | } |