44 import java.io.FileOutputStream; 45 import java.io.IOException; 46 import java.nio.ByteBuffer; 47 import java.nio.ByteOrder; 48 import java.nio.channels.FileChannel; 49 import java.nio.file.Files; 50 import java.nio.file.Path; 51 import java.nio.file.Paths; 52 import static java.nio.file.StandardCopyOption.REPLACE_EXISTING; 53 import java.nio.file.StandardOpenOption; 54 import static java.nio.file.StandardOpenOption.READ; 55 import static java.nio.file.StandardOpenOption.WRITE; 56 import java.util.ArrayList; 57 import java.util.HashSet; 58 import java.util.List; 59 import java.util.Random; 60 import sun.hotspot.WhiteBox; 61 62 public class SharedArchiveConsistency { 63 public static WhiteBox wb; 64 public static int offset_magic; // FileMapHeader::_magic 65 public static int sp_offset_crc; // CDSFileMapRegion::_crc 66 public static int file_header_size = -1;// total size of header, variant, need calculation 67 public static int CDSFileMapRegion_size; // size of CDSFileMapRegion 68 public static int sp_offset; // offset of CDSFileMapRegion 69 public static int sp_used_offset; // offset of CDSFileMapRegion::_used 70 public static int size_t_size; // size of size_t 71 72 public static File jsa; // will be updated during test 73 public static File orgJsaFile; // kept the original file not touched. 74 // The following should be consistent with the enum in the C++ MetaspaceShared class 75 public static String[] shared_region_name = { 76 "mc", // MiscCode 77 "rw", // ReadWrite 78 "ro", // ReadOnly 79 "md", // MiscData 80 "first_closed_archive", 81 "last_closed_archive", 82 "first_open_archive", 83 "last_open_archive" 84 }; 85 86 public static int num_regions = shared_region_name.length; 87 public static String[] matchMessages = { 88 "Unable to use shared archive", 89 "An error has occurred while processing the shared archive file.", 90 "Checksum verification failed.", 91 "The shared archive file has been truncated." 92 }; 93 94 public static void getFileOffsetInfo() throws Exception { 95 wb = WhiteBox.getWhiteBox(); 96 offset_magic = wb.getOffsetForName("FileMapHeader::_magic"); 97 sp_offset_crc = wb.getOffsetForName("CDSFileMapRegion::_crc"); 98 try { 99 int nonExistOffset = wb.getOffsetForName("FileMapHeader::_non_exist_offset"); 100 System.exit(-1); // should fail 101 } catch (Exception e) { 102 // success 103 } 104 105 sp_offset = wb.getOffsetForName("FileMapHeader::_space[0]") - offset_magic; 106 sp_used_offset = wb.getOffsetForName("CDSFileMapRegion::_used") - sp_offset_crc; 107 size_t_size = wb.getOffsetForName("size_t_size"); 108 CDSFileMapRegion_size = wb.getOffsetForName("CDSFileMapRegion_size"); 109 } 110 111 public static int getFileHeaderSize(FileChannel fc) throws Exception { 112 if (file_header_size != -1) { 113 return file_header_size; 114 } 115 // this is not real header size, it is struct size 116 int int_size = wb.getOffsetForName("int_size"); 117 file_header_size = wb.getOffsetForName("file_header_size"); 118 int offset_path_misc_info = wb.getOffsetForName("FileMapHeader::_paths_misc_info_size") - 119 offset_magic; 120 int path_misc_info_size = (int)readInt(fc, offset_path_misc_info, int_size); 121 file_header_size += path_misc_info_size; //readInt(fc, offset_path_misc_info, size_t_size); 122 System.out.println("offset_path_misc_info = " + offset_path_misc_info); 123 System.out.println("path_misc_info_size = " + path_misc_info_size); 124 System.out.println("file_header_size = " + file_header_size); 125 file_header_size = (int)align_up_page(file_header_size); 126 System.out.println("file_header_size (aligned to page) = " + file_header_size); 127 return file_header_size; 128 } 129 130 public static long align_up_page(long l) throws Exception { 131 // wb is obtained in getFileOffsetInfo() which is called first in main() else we should call 132 // WhiteBox.getWhiteBox() here first. 133 int pageSize = wb.getVMPageSize(); 134 return (l + pageSize -1) & (~ (pageSize - 1)); 135 } 136 137 private static long getRandomBetween(long start, long end) throws Exception { 138 if (start > end) { 139 throw new IllegalArgumentException("start must be less than end"); 140 } 141 Random aRandom = Utils.getRandomInstance(); 142 int d = aRandom.nextInt((int)(end - start)); 143 if (d < 1) { 144 d = 1; 145 } 146 return start + d; 147 } 148 149 public static long readInt(FileChannel fc, long offset, int nbytes) throws Exception { 150 ByteBuffer bb = ByteBuffer.allocate(nbytes); 151 bb.order(ByteOrder.nativeOrder()); 152 fc.position(offset); 153 fc.read(bb); 154 return (nbytes > 4 ? bb.getLong(0) : bb.getInt(0)); 155 } 156 157 public static void writeData(FileChannel fc, long offset, ByteBuffer bb) throws Exception { 158 fc.position(offset); 159 fc.write(bb); 160 fc.force(true); 161 } 162 163 public static FileChannel getFileChannel() throws Exception { 164 List<StandardOpenOption> arry = new ArrayList<StandardOpenOption>(); 165 arry.add(READ); 166 arry.add(WRITE); 167 return FileChannel.open(jsa.toPath(), new HashSet<StandardOpenOption>(arry)); 168 } 169 170 public static void modifyJsaContentRandomly() throws Exception { 171 FileChannel fc = getFileChannel(); 172 // corrupt random area in the data areas 173 long[] used = new long[num_regions]; // record used bytes 174 long start0, start, end, off; 175 int used_offset, path_info_size; 176 177 int bufSize; 178 System.out.printf("%-24s%12s%12s%16s\n", "Space Name", "Used bytes", "Reg Start", "Random Offset"); 179 start0 = getFileHeaderSize(fc); 180 for (int i = 0; i < num_regions; i++) { 181 used[i] = get_region_used_size_aligned(fc, i); 182 start = start0; 183 for (int j = 0; j < i; j++) { 184 start += align_up_page(used[j]); 185 } 186 end = start + used[i]; 187 if (start == end) { 188 continue; // Ignore empty regions 189 } 190 off = getRandomBetween(start, end); 191 System.out.printf("%-24s%12d%12d%16d\n", shared_region_name[i], used[i], start, off); 193 bufSize = (int)(end - off + 1); 194 } else { 195 bufSize = 1024; 196 } 197 ByteBuffer bbuf = ByteBuffer.wrap(new byte[bufSize]); 198 writeData(fc, off, bbuf); 199 } 200 if (fc.isOpen()) { 201 fc.close(); 202 } 203 } 204 205 static long get_region_used_size_aligned(FileChannel fc, int region) throws Exception { 206 long n = sp_offset + CDSFileMapRegion_size * region + sp_used_offset; 207 long alignment = WhiteBox.getWhiteBox().metaspaceReserveAlignment(); 208 long used = readInt(fc, n, size_t_size); 209 used = (used + alignment - 1) & ~(alignment - 1); 210 return used; 211 } 212 213 public static boolean modifyJsaContent(int region) throws Exception { 214 FileChannel fc = getFileChannel(); 215 byte[] buf = new byte[4096]; 216 ByteBuffer bbuf = ByteBuffer.wrap(buf); 217 218 long total = 0L; 219 long[] used = new long[num_regions]; 220 System.out.printf("%-24s%12s\n", "Space name", "Used bytes"); 221 for (int i = 0; i < num_regions; i++) { 222 used[i] = get_region_used_size_aligned(fc, i); 223 System.out.printf("%-24s%12d\n", shared_region_name[i], used[i]); 224 total += used[i]; 225 } 226 System.out.printf("%-24s%12d\n", "Total: ", total); 227 long header_size = getFileHeaderSize(fc); 228 long region_start_offset = header_size; 229 for (int i=0; i<region; i++) { 230 region_start_offset += used[i]; 231 } 232 if (used[region] == 0) { 233 System.out.println("Region " + shared_region_name[region] + " is empty. Nothing to corrupt."); 234 return false; 235 } 236 System.out.println("Corrupt " + shared_region_name[region] + " section, start = " + region_start_offset 237 + " (header_size + 0x" + Long.toHexString(region_start_offset-header_size) + ")"); 238 long bytes_written = 0L; 239 while (bytes_written < used[region]) { 240 writeData(fc, region_start_offset + bytes_written, bbuf); 241 bbuf.clear(); 242 bytes_written += 4096; 243 } 244 fc.force(true); 245 if (fc.isOpen()) { 246 fc.close(); 247 } 248 return true; 249 } 250 251 public static void modifyJsaHeader() throws Exception { 252 FileChannel fc = getFileChannel(); 253 // screw up header info 254 byte[] buf = new byte[getFileHeaderSize(fc)]; 255 ByteBuffer bbuf = ByteBuffer.wrap(buf); 256 writeData(fc, 0L, bbuf); 257 if (fc.isOpen()) { 258 fc.close(); 259 } 260 } 261 262 public static void copyFile(File from, File to) throws Exception { 263 if (to.exists()) { 264 if(!to.delete()) { 265 throw new IOException("Could not delete file " + to); 266 } 267 } 268 to.createNewFile(); 269 setReadWritePermission(to); 270 Files.copy(from.toPath(), to.toPath(), REPLACE_EXISTING); 271 } 272 273 // Copy file with bytes deleted or inserted 274 // del -- true, deleted, false, inserted 275 public static void copyFile(File from, File to, boolean del) throws Exception { 276 try ( 277 FileChannel inputChannel = new FileInputStream(from).getChannel(); 278 FileChannel outputChannel = new FileOutputStream(to).getChannel() 279 ) { 280 long size = inputChannel.size(); 281 int init_size = getFileHeaderSize(inputChannel); 331 // 3) keep header correct but modify content in each region specified by shared_region_name[] 332 // 4) update both header and content, test 333 // 5) delete bytes in data begining 334 // 6) insert bytes in data begining 335 // 7) randomly corrupt data in each region specified by shared_region_name[] 336 public static void main(String... args) throws Exception { 337 // must call to get offset info first!!! 338 getFileOffsetInfo(); 339 Path currentRelativePath = Paths.get(""); 340 String currentDir = currentRelativePath.toAbsolutePath().toString(); 341 System.out.println("Current relative path is: " + currentDir); 342 // get jar file 343 String jarFile = JarBuilder.getOrCreateHelloJar(); 344 345 // dump (appcds.jsa created) 346 TestCommon.testDump(jarFile, null); 347 348 // test, should pass 349 System.out.println("1. Normal, should pass but may fail\n"); 350 351 String[] execArgs = {"-cp", jarFile, "Hello"}; 352 // tests that corrupt contents of the archive need to run with 353 // VerifySharedSpaces enabled to detect inconsistencies 354 String[] verifyExecArgs = {"-XX:+VerifySharedSpaces", "-cp", jarFile, "Hello"}; 355 356 OutputAnalyzer output = TestCommon.execCommon(execArgs); 357 358 try { 359 TestCommon.checkExecReturn(output, 0, true, "Hello World"); 360 } catch (Exception e) { 361 TestCommon.checkExecReturn(output, 1, true, matchMessages[0]); 362 } 363 364 // get current archive name 365 jsa = new File(TestCommon.getCurrentArchiveName()); 366 if (!jsa.exists()) { 367 throw new IOException(jsa + " does not exist!"); 368 } 369 370 setReadWritePermission(jsa); 371 372 // save as original untouched 373 orgJsaFile = new File(new File(currentDir), "appcds.jsa.bak"); 374 copyFile(jsa, orgJsaFile); 375 376 377 // modify jsa header, test should fail 378 System.out.println("\n2. Corrupt header, should fail\n"); 379 modifyJsaHeader(); 380 output = TestCommon.execCommon(execArgs); 381 output.shouldContain("The shared archive file has the wrong version"); 382 output.shouldNotContain("Checksum verification failed"); 383 384 File newJsaFile = null; 385 // modify content 386 System.out.println("\n3. Corrupt Content, should fail\n"); 387 for (int i=0; i<num_regions; i++) { 388 newJsaFile = new File(TestCommon.getNewArchiveName(shared_region_name[i])); 389 copyFile(orgJsaFile, newJsaFile); 390 if (modifyJsaContent(i)) { 391 testAndCheck(execArgs); 392 } 393 } 394 395 // modify both header and content, test should fail 396 System.out.println("\n4. Corrupt Header and Content, should fail\n"); 397 newJsaFile = new File(TestCommon.getNewArchiveName("header-and-content")); 398 copyFile(orgJsaFile, newJsaFile); 399 modifyJsaHeader(); 400 modifyJsaContent(0); // this will not be reached since failed on header change first 401 output = TestCommon.execCommon(execArgs); 402 output.shouldContain("The shared archive file has the wrong version"); 403 output.shouldNotContain("Checksum verification failed"); 404 405 // delete bytes in data section 406 System.out.println("\n5. Delete bytes at beginning of data section, should fail\n"); 407 copyFile(orgJsaFile, jsa, true); 408 testAndCheck(verifyExecArgs); 409 410 // insert bytes in data section forward 411 System.out.println("\n6. Insert bytes at beginning of data section, should fail\n"); 412 copyFile(orgJsaFile, jsa, false); 413 testAndCheck(verifyExecArgs); 414 415 System.out.println("\n7. modify Content in random areas, should fail\n"); 416 newJsaFile = new File(TestCommon.getNewArchiveName("random-areas")); 417 copyFile(orgJsaFile, newJsaFile); 418 modifyJsaContentRandomly(); 419 testAndCheck(verifyExecArgs); 420 } 421 } | 44 import java.io.FileOutputStream; 45 import java.io.IOException; 46 import java.nio.ByteBuffer; 47 import java.nio.ByteOrder; 48 import java.nio.channels.FileChannel; 49 import java.nio.file.Files; 50 import java.nio.file.Path; 51 import java.nio.file.Paths; 52 import static java.nio.file.StandardCopyOption.REPLACE_EXISTING; 53 import java.nio.file.StandardOpenOption; 54 import static java.nio.file.StandardOpenOption.READ; 55 import static java.nio.file.StandardOpenOption.WRITE; 56 import java.util.ArrayList; 57 import java.util.HashSet; 58 import java.util.List; 59 import java.util.Random; 60 import sun.hotspot.WhiteBox; 61 62 public class SharedArchiveConsistency { 63 public static WhiteBox wb; 64 public static int offset_magic; // CDSFileMapHeaderBase::_magic 65 public static int offset_version; // CDSFileMapHeaderBase::_version 66 public static int offset_jvm_ident; // FileMapHeader::_jvm_ident 67 public static int sp_offset_crc; // CDSFileMapRegion::_crc 68 public static int offset_paths_misc_info_size; 69 public static int file_header_size = -1;// total size of header, variant, need calculation 70 public static int CDSFileMapRegion_size; // size of CDSFileMapRegion 71 public static int sp_offset; // offset of CDSFileMapRegion 72 public static int sp_used_offset; // offset of CDSFileMapRegion::_used 73 public static int size_t_size; // size of size_t 74 public static int int_size; // size of int 75 76 public static File jsa; // will be updated during test 77 public static File orgJsaFile; // kept the original file not touched. 78 // The following should be consistent with the enum in the C++ MetaspaceShared class 79 public static String[] shared_region_name = { 80 "mc", // MiscCode 81 "rw", // ReadWrite 82 "ro", // ReadOnly 83 "md", // MiscData 84 "first_closed_archive", 85 "last_closed_archive", 86 "first_open_archive", 87 "last_open_archive" 88 }; 89 90 public static int num_regions = shared_region_name.length; 91 public static String[] matchMessages = { 92 "Unable to use shared archive", 93 "An error has occurred while processing the shared archive file.", 94 "Checksum verification failed.", 95 "The shared archive file has been truncated." 96 }; 97 98 public static void getFileOffsetInfo() throws Exception { 99 wb = WhiteBox.getWhiteBox(); 100 offset_magic = wb.getOffsetForName("FileMapHeader::_magic"); 101 offset_version = wb.getOffsetForName("FileMapHeader::_version"); 102 offset_jvm_ident = wb.getOffsetForName("FileMapHeader::_jvm_ident"); 103 sp_offset_crc = wb.getOffsetForName("CDSFileMapRegion::_crc"); 104 try { 105 int nonExistOffset = wb.getOffsetForName("FileMapHeader::_non_exist_offset"); 106 System.exit(-1); // should fail 107 } catch (Exception e) { 108 // success 109 } 110 111 sp_offset = wb.getOffsetForName("FileMapHeader::_space[0]") - offset_magic; 112 sp_used_offset = wb.getOffsetForName("CDSFileMapRegion::_used") - sp_offset_crc; 113 size_t_size = wb.getOffsetForName("size_t_size"); 114 CDSFileMapRegion_size = wb.getOffsetForName("CDSFileMapRegion_size"); 115 } 116 117 public static int getFileHeaderSize(FileChannel fc) throws Exception { 118 if (file_header_size != -1) { 119 return file_header_size; 120 } 121 // this is not real header size, it is struct size 122 int_size = wb.getOffsetForName("int_size"); 123 file_header_size = wb.getOffsetForName("file_header_size"); 124 offset_paths_misc_info_size = wb.getOffsetForName("FileMapHeader::_paths_misc_info_size") - 125 offset_magic; 126 int path_misc_info_size = (int)readInt(fc, offset_paths_misc_info_size, int_size); 127 file_header_size += path_misc_info_size; 128 System.out.println("offset_paths_misc_info_size = " + offset_paths_misc_info_size); 129 System.out.println("path_misc_info_size = " + path_misc_info_size); 130 System.out.println("file_header_size = " + file_header_size); 131 file_header_size = (int)align_up_page(file_header_size); 132 System.out.println("file_header_size (aligned to page) = " + file_header_size); 133 return file_header_size; 134 } 135 136 public static long align_up_page(long l) throws Exception { 137 // wb is obtained in getFileOffsetInfo() which is called first in main() else we should call 138 // WhiteBox.getWhiteBox() here first. 139 int pageSize = wb.getVMPageSize(); 140 return (l + pageSize -1) & (~ (pageSize - 1)); 141 } 142 143 private static long getRandomBetween(long start, long end) throws Exception { 144 if (start > end) { 145 throw new IllegalArgumentException("start must be less than end"); 146 } 147 Random aRandom = Utils.getRandomInstance(); 148 int d = aRandom.nextInt((int)(end - start)); 149 if (d < 1) { 150 d = 1; 151 } 152 return start + d; 153 } 154 155 public static long readInt(FileChannel fc, long offset, int nbytes) throws Exception { 156 ByteBuffer bb = ByteBuffer.allocate(nbytes); 157 bb.order(ByteOrder.nativeOrder()); 158 fc.position(offset); 159 fc.read(bb); 160 return (nbytes > 4 ? bb.getLong(0) : bb.getInt(0)); 161 } 162 163 public static void writeData(FileChannel fc, long offset, ByteBuffer bb) throws Exception { 164 fc.position(offset); 165 fc.write(bb); 166 fc.force(true); 167 } 168 169 public static FileChannel getFileChannel(File jsaFile) throws Exception { 170 List<StandardOpenOption> arry = new ArrayList<StandardOpenOption>(); 171 arry.add(READ); 172 arry.add(WRITE); 173 return FileChannel.open(jsaFile.toPath(), new HashSet<StandardOpenOption>(arry)); 174 } 175 176 public static void modifyJsaContentRandomly(File jsaFile) throws Exception { 177 FileChannel fc = getFileChannel(jsaFile); 178 // corrupt random area in the data areas 179 long[] used = new long[num_regions]; // record used bytes 180 long start0, start, end, off; 181 int used_offset, path_info_size; 182 183 int bufSize; 184 System.out.printf("%-24s%12s%12s%16s\n", "Space Name", "Used bytes", "Reg Start", "Random Offset"); 185 start0 = getFileHeaderSize(fc); 186 for (int i = 0; i < num_regions; i++) { 187 used[i] = get_region_used_size_aligned(fc, i); 188 start = start0; 189 for (int j = 0; j < i; j++) { 190 start += align_up_page(used[j]); 191 } 192 end = start + used[i]; 193 if (start == end) { 194 continue; // Ignore empty regions 195 } 196 off = getRandomBetween(start, end); 197 System.out.printf("%-24s%12d%12d%16d\n", shared_region_name[i], used[i], start, off); 199 bufSize = (int)(end - off + 1); 200 } else { 201 bufSize = 1024; 202 } 203 ByteBuffer bbuf = ByteBuffer.wrap(new byte[bufSize]); 204 writeData(fc, off, bbuf); 205 } 206 if (fc.isOpen()) { 207 fc.close(); 208 } 209 } 210 211 static long get_region_used_size_aligned(FileChannel fc, int region) throws Exception { 212 long n = sp_offset + CDSFileMapRegion_size * region + sp_used_offset; 213 long alignment = WhiteBox.getWhiteBox().metaspaceReserveAlignment(); 214 long used = readInt(fc, n, size_t_size); 215 used = (used + alignment - 1) & ~(alignment - 1); 216 return used; 217 } 218 219 public static boolean modifyJsaContent(int region, File jsaFile) throws Exception { 220 FileChannel fc = getFileChannel(jsaFile); 221 byte[] buf = new byte[4096]; 222 ByteBuffer bbuf = ByteBuffer.wrap(buf); 223 224 long total = 0L; 225 long[] used = new long[num_regions]; 226 System.out.printf("%-24s%12s\n", "Space name", "Used bytes"); 227 for (int i = 0; i < num_regions; i++) { 228 used[i] = get_region_used_size_aligned(fc, i); 229 System.out.printf("%-24s%12d\n", shared_region_name[i], used[i]); 230 total += used[i]; 231 } 232 System.out.printf("%-24s%12d\n", "Total: ", total); 233 long header_size = getFileHeaderSize(fc); 234 long region_start_offset = header_size; 235 for (int i=0; i<region; i++) { 236 region_start_offset += used[i]; 237 } 238 if (used[region] == 0) { 239 System.out.println("Region " + shared_region_name[region] + " is empty. Nothing to corrupt."); 240 return false; 241 } 242 System.out.println("Corrupt " + shared_region_name[region] + " section, start = " + region_start_offset 243 + " (header_size + 0x" + Long.toHexString(region_start_offset-header_size) + ")"); 244 long bytes_written = 0L; 245 while (bytes_written < used[region]) { 246 writeData(fc, region_start_offset + bytes_written, bbuf); 247 bbuf.clear(); 248 bytes_written += 4096; 249 } 250 fc.force(true); 251 if (fc.isOpen()) { 252 fc.close(); 253 } 254 return true; 255 } 256 257 public static void modifyJsaHeader(File jsaFile) throws Exception { 258 FileChannel fc = getFileChannel(jsaFile); 259 // screw up header info 260 byte[] buf = new byte[getFileHeaderSize(fc)]; 261 ByteBuffer bbuf = ByteBuffer.wrap(buf); 262 writeData(fc, 0L, bbuf); 263 if (fc.isOpen()) { 264 fc.close(); 265 } 266 } 267 268 public static void modifyJvmIdent() throws Exception { 269 FileChannel fc = getFileChannel(jsa); 270 int headerSize = getFileHeaderSize(fc); 271 System.out.println(" offset_jvm_ident " + offset_jvm_ident); 272 byte[] buf = new byte[256]; 273 ByteBuffer bbuf = ByteBuffer.wrap(buf); 274 writeData(fc, (long)offset_jvm_ident, bbuf); 275 if (fc.isOpen()) { 276 fc.close(); 277 } 278 } 279 280 public static void modifyHeaderIntField(long offset, int value) throws Exception { 281 FileChannel fc = getFileChannel(jsa); 282 int headerSize = getFileHeaderSize(fc); 283 System.out.println(" offset " + offset); 284 byte[] buf = ByteBuffer.allocate(4).putInt(value).array(); 285 ByteBuffer bbuf = ByteBuffer.wrap(buf); 286 writeData(fc, offset, bbuf); 287 if (fc.isOpen()) { 288 fc.close(); 289 } 290 } 291 292 public static void copyFile(File from, File to) throws Exception { 293 if (to.exists()) { 294 if(!to.delete()) { 295 throw new IOException("Could not delete file " + to); 296 } 297 } 298 to.createNewFile(); 299 setReadWritePermission(to); 300 Files.copy(from.toPath(), to.toPath(), REPLACE_EXISTING); 301 } 302 303 // Copy file with bytes deleted or inserted 304 // del -- true, deleted, false, inserted 305 public static void copyFile(File from, File to, boolean del) throws Exception { 306 try ( 307 FileChannel inputChannel = new FileInputStream(from).getChannel(); 308 FileChannel outputChannel = new FileOutputStream(to).getChannel() 309 ) { 310 long size = inputChannel.size(); 311 int init_size = getFileHeaderSize(inputChannel); 361 // 3) keep header correct but modify content in each region specified by shared_region_name[] 362 // 4) update both header and content, test 363 // 5) delete bytes in data begining 364 // 6) insert bytes in data begining 365 // 7) randomly corrupt data in each region specified by shared_region_name[] 366 public static void main(String... args) throws Exception { 367 // must call to get offset info first!!! 368 getFileOffsetInfo(); 369 Path currentRelativePath = Paths.get(""); 370 String currentDir = currentRelativePath.toAbsolutePath().toString(); 371 System.out.println("Current relative path is: " + currentDir); 372 // get jar file 373 String jarFile = JarBuilder.getOrCreateHelloJar(); 374 375 // dump (appcds.jsa created) 376 TestCommon.testDump(jarFile, null); 377 378 // test, should pass 379 System.out.println("1. Normal, should pass but may fail\n"); 380 381 String[] execArgs = {"-Xlog:cds", "-cp", jarFile, "Hello"}; 382 // tests that corrupt contents of the archive need to run with 383 // VerifySharedSpaces enabled to detect inconsistencies 384 String[] verifyExecArgs = {"-Xlog:cds", "-XX:+VerifySharedSpaces", "-cp", jarFile, "Hello"}; 385 386 OutputAnalyzer output = TestCommon.execCommon(execArgs); 387 388 try { 389 TestCommon.checkExecReturn(output, 0, true, "Hello World"); 390 } catch (Exception e) { 391 TestCommon.checkExecReturn(output, 1, true, matchMessages[0]); 392 } 393 394 // get current archive name 395 jsa = new File(TestCommon.getCurrentArchiveName()); 396 if (!jsa.exists()) { 397 throw new IOException(jsa + " does not exist!"); 398 } 399 400 setReadWritePermission(jsa); 401 402 // save as original untouched 403 orgJsaFile = new File(new File(currentDir), "appcds.jsa.bak"); 404 copyFile(jsa, orgJsaFile); 405 406 // modify jsa header, test should fail 407 System.out.println("\n2. Corrupt header, should fail\n"); 408 modifyJsaHeader(jsa); 409 output = TestCommon.execCommon(execArgs); 410 output.shouldContain("The shared archive file has a bad magic number"); 411 output.shouldNotContain("Checksum verification failed"); 412 413 copyFile(orgJsaFile, jsa); 414 // modify _jvm_ident and _paths_misc_info_size, test should fail 415 System.out.println("\n2a. Corrupt _jvm_ident and _paths_misc_info_size, should fail\n"); 416 modifyJvmIdent(); 417 modifyHeaderIntField(offset_paths_misc_info_size, Integer.MAX_VALUE); 418 output = TestCommon.execCommon(execArgs); 419 output.shouldContain("The shared archive file was created by a different version or build of HotSpot"); 420 output.shouldNotContain("Checksum verification failed"); 421 422 copyFile(orgJsaFile, jsa); 423 // modify _magic and _paths_misc_info_size, test should fail 424 System.out.println("\n2b. Corrupt _magic and _paths_misc_info_size, should fail\n"); 425 modifyHeaderIntField(offset_magic, 0x00000000); 426 modifyHeaderIntField(offset_paths_misc_info_size, Integer.MAX_VALUE); 427 output = TestCommon.execCommon(execArgs); 428 output.shouldContain("The shared archive file has a bad magic number"); 429 output.shouldNotContain("Checksum verification failed"); 430 431 copyFile(orgJsaFile, jsa); 432 // modify _version and _paths_misc_info_size, test should fail 433 System.out.println("\n2c. Corrupt _version and _paths_misc_info_size, should fail\n"); 434 modifyHeaderIntField(offset_version, 0x00000000); 435 modifyHeaderIntField(offset_paths_misc_info_size, Integer.MAX_VALUE); 436 output = TestCommon.execCommon(execArgs); 437 output.shouldContain("The shared archive file has the wrong version"); 438 output.shouldNotContain("Checksum verification failed"); 439 440 File newJsaFile = null; 441 // modify content 442 System.out.println("\n3. Corrupt Content, should fail\n"); 443 for (int i=0; i<num_regions; i++) { 444 newJsaFile = new File(TestCommon.getNewArchiveName(shared_region_name[i])); 445 copyFile(orgJsaFile, newJsaFile); 446 TestCommon.setCurrentArchiveName(newJsaFile.toString()); 447 if (modifyJsaContent(i, newJsaFile)) { 448 testAndCheck(verifyExecArgs); 449 } 450 } 451 452 // modify both header and content, test should fail 453 System.out.println("\n4. Corrupt Header and Content, should fail\n"); 454 newJsaFile = new File(TestCommon.getNewArchiveName("header-and-content")); 455 copyFile(orgJsaFile, newJsaFile); 456 TestCommon.setCurrentArchiveName(newJsaFile.toString()); 457 modifyJsaHeader(newJsaFile); 458 modifyJsaContent(0, newJsaFile); // this will not be reached since failed on header change first 459 output = TestCommon.execCommon(execArgs); 460 output.shouldContain("The shared archive file has a bad magic number"); 461 output.shouldNotContain("Checksum verification failed"); 462 463 // delete bytes in data section 464 System.out.println("\n5. Delete bytes at beginning of data section, should fail\n"); 465 copyFile(orgJsaFile, jsa, true); 466 TestCommon.setCurrentArchiveName(jsa.toString()); 467 testAndCheck(verifyExecArgs); 468 469 // insert bytes in data section forward 470 System.out.println("\n6. Insert bytes at beginning of data section, should fail\n"); 471 copyFile(orgJsaFile, jsa, false); 472 testAndCheck(verifyExecArgs); 473 474 System.out.println("\n7. modify Content in random areas, should fail\n"); 475 newJsaFile = new File(TestCommon.getNewArchiveName("random-areas")); 476 copyFile(orgJsaFile, newJsaFile); 477 TestCommon.setCurrentArchiveName(newJsaFile.toString()); 478 modifyJsaContentRandomly(newJsaFile); 479 testAndCheck(verifyExecArgs); 480 } 481 } |