Serhii Boiko | 992bf52 | 2019-03-28 18:38:04 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2019-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.gnoi; |
| 18 | |
| 19 | import com.google.protobuf.ByteString; |
| 20 | import gnoi.system.SystemOuterClass; |
| 21 | import gnoi.system.SystemOuterClass.SetPackageRequest; |
| 22 | import gnoi.system.SystemOuterClass.SetPackageResponse; |
| 23 | import gnoi.system.SystemOuterClass.SwitchControlProcessorRequest; |
| 24 | import gnoi.types.Types; |
| 25 | import org.onosproject.gnoi.api.GnoiClient; |
| 26 | import org.onosproject.gnoi.api.GnoiController; |
| 27 | import org.onosproject.grpc.utils.AbstractGrpcHandlerBehaviour; |
| 28 | import org.onosproject.net.behaviour.SoftwareUpgrade; |
| 29 | import org.apache.commons.io.FilenameUtils; |
| 30 | import java.util.concurrent.CompletableFuture; |
| 31 | import java.util.concurrent.SynchronousQueue; |
| 32 | import java.util.concurrent.TimeUnit; |
| 33 | import java.util.UUID; |
| 34 | import java.io.File; |
| 35 | import java.io.FileInputStream; |
| 36 | import java.io.IOException; |
| 37 | import java.nio.file.Path; |
| 38 | import java.nio.file.Paths; |
| 39 | import java.security.MessageDigest; |
| 40 | import java.security.NoSuchAlgorithmException; |
| 41 | import javax.xml.bind.DatatypeConverter; |
| 42 | |
| 43 | |
| 44 | import static com.google.common.base.Preconditions.checkNotNull; |
| 45 | |
| 46 | |
| 47 | /** |
| 48 | * Implementation that upgrades the software on a device. |
| 49 | */ |
| 50 | public class GnoiSoftwareUpgradeImpl |
| 51 | extends AbstractGrpcHandlerBehaviour<GnoiClient, GnoiController> |
| 52 | implements SoftwareUpgrade { |
| 53 | |
| 54 | private static final String HASHING_METHOD = "MD5"; |
| 55 | private static final int MAX_CHUNK_SIZE = 64_000; |
| 56 | private static final Path DEFAULT_PACKAGE_PATH = Paths.get("/tmp"); |
| 57 | private static final int STREAM_TIMEOUT_SECONDS = 10; |
| 58 | |
| 59 | public GnoiSoftwareUpgradeImpl() { |
| 60 | super(GnoiController.class); |
| 61 | } |
| 62 | |
| 63 | @Override |
| 64 | public CompletableFuture<String> uploadPackage(String sourcePath, String dst) { |
| 65 | if (!setupBehaviour("uploadPackage()")) { |
| 66 | return CompletableFuture.completedFuture(null); |
| 67 | } |
| 68 | checkNotNull(sourcePath, "Source file not specified."); |
| 69 | |
| 70 | final CompletableFuture<String> future = new CompletableFuture<>(); |
| 71 | |
| 72 | final File deb = Paths.get(sourcePath).toFile(); |
| 73 | final String destinationPath; |
| 74 | |
| 75 | final SetPackageRequest.Builder requestBuilder = SetPackageRequest.newBuilder(); |
| 76 | final SystemOuterClass.Package.Builder pkgBuilder = SystemOuterClass.Package.newBuilder(); |
| 77 | final Types.HashType.Builder hashBuilder = Types.HashType.newBuilder(); |
| 78 | |
| 79 | final SynchronousQueue<SetPackageRequest> stream = new SynchronousQueue<>(); |
| 80 | final CompletableFuture<SetPackageResponse> futureResponse = client.setPackage(stream); |
| 81 | |
| 82 | if (dst == null) { |
| 83 | destinationPath = getTempPath(sourcePath); |
| 84 | } else { |
| 85 | destinationPath = dst; |
| 86 | } |
| 87 | |
| 88 | futureResponse.whenComplete((response, exception) -> { |
| 89 | if (exception == null) { |
| 90 | future.complete(destinationPath); |
| 91 | } else { |
| 92 | future.complete(null); |
| 93 | } |
| 94 | }); |
| 95 | |
| 96 | // Handle reading file, creating requests, etc... |
| 97 | CompletableFuture.runAsync(() -> { |
| 98 | try { |
| 99 | |
| 100 | if (!deb.isFile()) { |
| 101 | log.error("File {} does not exist", sourcePath); |
| 102 | future.complete(null); |
| 103 | return; |
| 104 | } |
| 105 | // Set general package info (filename, version, etc...). |
| 106 | pkgBuilder.setFilename(destinationPath); |
| 107 | requestBuilder.setPackage(pkgBuilder.build()); |
| 108 | boolean requestSent = stream.offer(requestBuilder.build(), STREAM_TIMEOUT_SECONDS, TimeUnit.SECONDS); |
| 109 | if (!requestSent) { |
| 110 | future.complete(null); |
| 111 | return; |
| 112 | } |
| 113 | |
| 114 | final MessageDigest md = MessageDigest.getInstance(HASHING_METHOD); |
| 115 | final FileInputStream buffer = new FileInputStream(deb); |
| 116 | byte[] contents = new byte[MAX_CHUNK_SIZE]; |
| 117 | int read = 0; |
| 118 | |
| 119 | // Read file in 64k chunks. |
| 120 | while ((read = buffer.read(contents, 0, MAX_CHUNK_SIZE)) != -1) { |
| 121 | // Calculate File hash. |
| 122 | md.update(contents, 0, read); |
| 123 | |
| 124 | // Form next request. |
| 125 | requestBuilder.setContents(ByteString.copyFrom(contents, 0, read)); |
| 126 | |
| 127 | // Add file chunk to stream. |
| 128 | requestSent = stream.offer(requestBuilder.build(), STREAM_TIMEOUT_SECONDS, TimeUnit.SECONDS); |
| 129 | if (!requestSent) { |
| 130 | future.complete(null); |
| 131 | return; |
| 132 | } |
| 133 | } |
| 134 | |
| 135 | // Convert hash to lowercase string. |
| 136 | String hash = DatatypeConverter |
| 137 | .printHexBinary(md.digest()) |
| 138 | .toLowerCase(); |
| 139 | |
| 140 | hashBuilder |
| 141 | .setMethodValue(Types.HashType.HashMethod.MD5.getNumber()) |
| 142 | .setHash(ByteString.copyFrom(hash.getBytes())); |
| 143 | |
| 144 | // Form last request with file hash. |
| 145 | requestBuilder.setHash(hashBuilder.build()); |
| 146 | |
| 147 | // Add file chunk to stream. |
| 148 | requestSent = stream.offer(requestBuilder.build(), STREAM_TIMEOUT_SECONDS, TimeUnit.SECONDS); |
| 149 | if (!requestSent) { |
| 150 | future.complete(null); |
| 151 | return; |
| 152 | } |
| 153 | |
| 154 | } catch (IOException e) { |
| 155 | log.error("Error while reading file {}", sourcePath, e); |
| 156 | future.complete(null); |
| 157 | return; |
| 158 | } catch (InterruptedException e) { |
| 159 | log.error("Interrupted while sending package", e); |
| 160 | future.complete(null); |
| 161 | return; |
| 162 | } catch (SecurityException e) { |
| 163 | log.error("File {} cannot be accessed", sourcePath, e); |
| 164 | future.complete(null); |
| 165 | return; |
| 166 | } catch (NoSuchAlgorithmException e) { |
| 167 | log.error("Invalid hashing algorithm {}", HASHING_METHOD, e); |
| 168 | future.complete(null); |
| 169 | return; |
| 170 | } |
| 171 | }); |
| 172 | |
| 173 | return future; |
| 174 | } |
| 175 | |
| 176 | @Override |
| 177 | public CompletableFuture<Response> swapAgent(String packagePath) { |
| 178 | if (!setupBehaviour("swapAgent()")) { |
| 179 | return CompletableFuture.completedFuture(new Response()); |
| 180 | } |
| 181 | checkNotNull(packagePath, "File path not specified."); |
| 182 | |
| 183 | final CompletableFuture<Response> future = new CompletableFuture<>(); |
| 184 | final Types.Path.Builder routeProcessor = Types.Path.newBuilder(); |
| 185 | final SwitchControlProcessorRequest.Builder requestMsg = SwitchControlProcessorRequest.newBuilder(); |
| 186 | |
| 187 | Paths.get(packagePath) |
| 188 | .iterator() |
| 189 | .forEachRemaining(part -> { |
| 190 | routeProcessor.addElem( |
| 191 | Types.PathElem.newBuilder() |
| 192 | .setName(part.toString()) |
| 193 | .build()); |
| 194 | }); |
| 195 | |
| 196 | requestMsg.setControlProcessor(routeProcessor.build()); |
| 197 | |
| 198 | client.switchControlProcessor(requestMsg.build()) |
| 199 | .whenComplete((response, exception) -> { |
| 200 | if (exception != null) { |
| 201 | future.complete(new Response()); |
| 202 | } else { |
| 203 | future.complete(new Response(response.getUptime(), response.getVersion())); |
| 204 | } |
| 205 | }); |
| 206 | |
| 207 | return future; |
| 208 | } |
| 209 | |
| 210 | private String getTempPath(String source) { |
| 211 | String baseName = FilenameUtils.getBaseName(source); |
| 212 | String extension = FilenameUtils.getExtension(source); |
| 213 | |
| 214 | if (extension.length() != 0) { |
| 215 | extension = "." + extension; |
| 216 | } |
| 217 | |
| 218 | String filename = baseName + "_" + UUID.randomUUID().toString() + extension; |
| 219 | return DEFAULT_PACKAGE_PATH.resolve(filename).toString(); |
| 220 | } |
| 221 | } |