test_fuzz.c revision 305192
1/*- 2 * Copyright (c) 2003-2007 Tim Kientzle 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR(S) ``AS IS'' AND ANY EXPRESS OR 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 17 * IN NO EVENT SHALL THE AUTHOR(S) BE LIABLE FOR ANY DIRECT, INDIRECT, 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25#include "test.h" 26__FBSDID("$FreeBSD: stable/10/contrib/libarchive/libarchive/test/test_fuzz.c 305192 2016-09-01 12:01:23Z mm $"); 27 28/* 29 * This was inspired by an ISO fuzz tester written by Michal Zalewski 30 * and posted to the "vulnwatch" mailing list on March 17, 2005: 31 * http://seclists.org/vulnwatch/2005/q1/0088.html 32 * 33 * This test simply reads each archive image into memory, pokes 34 * random values into it and runs it through libarchive. It tries 35 * to damage about 1% of each file and repeats the exercise 100 times 36 * with each file. 37 * 38 * Unlike most other tests, this test does not verify libarchive's 39 * responses other than to ensure that libarchive doesn't crash. 40 * 41 * Due to the deliberately random nature of this test, it may be hard 42 * to reproduce failures. Because this test deliberately attempts to 43 * induce crashes, there's little that can be done in the way of 44 * post-failure diagnostics. 45 */ 46 47/* Because this works for any archive, we can just re-use the archives 48 * developed for other tests. */ 49struct files { 50 int uncompress; /* If 1, decompress the file before fuzzing. */ 51 const char **names; 52}; 53 54static void 55test_fuzz(const struct files *filesets) 56{ 57 const void *blk; 58 size_t blk_size; 59 int64_t blk_offset; 60 int n; 61 62 for (n = 0; filesets[n].names != NULL; ++n) { 63 const size_t buffsize = 30000000; 64 struct archive_entry *ae; 65 struct archive *a; 66 char *rawimage = NULL, *image = NULL, *tmp = NULL; 67 size_t size = 0, oldsize = 0; 68 int i, q; 69 70 extract_reference_files(filesets[n].names); 71 if (filesets[n].uncompress) { 72 int r; 73 /* Use format_raw to decompress the data. */ 74 assert((a = archive_read_new()) != NULL); 75 assertEqualIntA(a, ARCHIVE_OK, 76 archive_read_support_filter_all(a)); 77 assertEqualIntA(a, ARCHIVE_OK, 78 archive_read_support_format_raw(a)); 79 r = archive_read_open_filenames(a, filesets[n].names, 16384); 80 if (r != ARCHIVE_OK) { 81 archive_read_free(a); 82 if (filesets[n].names[0] == NULL || filesets[n].names[1] == NULL) { 83 skipping("Cannot uncompress fileset"); 84 } else { 85 skipping("Cannot uncompress %s", filesets[n].names[0]); 86 } 87 continue; 88 } 89 assertEqualIntA(a, ARCHIVE_OK, 90 archive_read_next_header(a, &ae)); 91 rawimage = malloc(buffsize); 92 size = archive_read_data(a, rawimage, buffsize); 93 assertEqualIntA(a, ARCHIVE_EOF, 94 archive_read_next_header(a, &ae)); 95 assertEqualInt(ARCHIVE_OK, 96 archive_read_free(a)); 97 assert(size > 0); 98 if (filesets[n].names[0] == NULL || filesets[n].names[1] == NULL) { 99 failure("Internal buffer is not big enough for " 100 "uncompressed test files"); 101 } else { 102 failure("Internal buffer is not big enough for " 103 "uncompressed test file: %s", filesets[n].names[0]); 104 } 105 if (!assert(size < buffsize)) { 106 free(rawimage); 107 continue; 108 } 109 } else { 110 for (i = 0; filesets[n].names[i] != NULL; ++i) 111 { 112 tmp = slurpfile(&size, filesets[n].names[i]); 113 char *newraw = (char *)realloc(rawimage, oldsize + size); 114 if (!assert(newraw != NULL)) 115 { 116 free(rawimage); 117 continue; 118 } 119 rawimage = newraw; 120 memcpy(rawimage + oldsize, tmp, size); 121 oldsize += size; 122 size = oldsize; 123 free(tmp); 124 } 125 } 126 if (size == 0) 127 continue; 128 image = malloc(size); 129 assert(image != NULL); 130 if (image == NULL) { 131 free(rawimage); 132 return; 133 } 134 srand((unsigned)time(NULL)); 135 136 for (i = 0; i < 1000; ++i) { 137 FILE *f; 138 int j, numbytes, trycnt; 139 140 /* Fuzz < 1% of the bytes in the archive. */ 141 memcpy(image, rawimage, size); 142 q = (int)size / 100; 143 if (q < 4) 144 q = 4; 145 numbytes = (int)(rand() % q); 146 for (j = 0; j < numbytes; ++j) 147 image[rand() % size] = (char)rand(); 148 149 /* Save the messed-up image to a file. 150 * If we crash, that file will be useful. */ 151 for (trycnt = 0; trycnt < 3; trycnt++) { 152 f = fopen("after.test.failure.send.this.file." 153 "to.libarchive.maintainers.with.system.details", "wb"); 154 if (f != NULL) 155 break; 156#if defined(_WIN32) && !defined(__CYGWIN__) 157 /* 158 * Sometimes previous close operation does not completely 159 * end at this time. So we should take a wait while 160 * the operation running. 161 */ 162 Sleep(100); 163#endif 164 } 165 assertEqualInt((size_t)size, fwrite(image, 1, (size_t)size, f)); 166 fclose(f); 167 168 // Try to read all headers and bodies. 169 assert((a = archive_read_new()) != NULL); 170 assertEqualIntA(a, ARCHIVE_OK, 171 archive_read_support_filter_all(a)); 172 assertEqualIntA(a, ARCHIVE_OK, 173 archive_read_support_format_all(a)); 174 175 if (0 == archive_read_open_memory(a, image, size)) { 176 while(0 == archive_read_next_header(a, &ae)) { 177 while (0 == archive_read_data_block(a, 178 &blk, &blk_size, &blk_offset)) 179 continue; 180 } 181 archive_read_close(a); 182 } 183 archive_read_free(a); 184 185 // Just list headers, skip bodies. 186 assert((a = archive_read_new()) != NULL); 187 assertEqualIntA(a, ARCHIVE_OK, 188 archive_read_support_filter_all(a)); 189 assertEqualIntA(a, ARCHIVE_OK, 190 archive_read_support_format_all(a)); 191 192 if (0 == archive_read_open_memory(a, image, size)) { 193 while(0 == archive_read_next_header(a, &ae)) { 194 } 195 archive_read_close(a); 196 } 197 archive_read_free(a); 198} 199 free(image); 200 free(rawimage); 201 } 202} 203 204DEFINE_TEST(test_fuzz_ar) 205{ 206 static const char *fileset1[] = { 207 "test_read_format_ar.ar", 208 NULL 209 }; 210 static const struct files filesets[] = { 211 {0, fileset1}, 212 {1, NULL} 213 }; 214 test_fuzz(filesets); 215} 216 217DEFINE_TEST(test_fuzz_cab) 218{ 219 static const char *fileset1[] = { 220 "test_fuzz.cab", 221 NULL 222 }; 223 static const struct files filesets[] = { 224 {0, fileset1}, 225 {1, NULL} 226 }; 227 test_fuzz(filesets); 228} 229 230DEFINE_TEST(test_fuzz_cpio) 231{ 232 static const char *fileset1[] = { 233 "test_read_format_cpio_bin_be.cpio", 234 NULL 235 }; 236 static const char *fileset2[] = { 237 "test_read_format_cpio_bin_le.cpio", 238 NULL 239 }; 240 static const char *fileset3[] = { 241 /* Test RPM unwrapper */ 242 "test_read_format_cpio_svr4_gzip_rpm.rpm", 243 NULL 244 }; 245 static const struct files filesets[] = { 246 {0, fileset1}, 247 {0, fileset2}, 248 {0, fileset3}, 249 {1, NULL} 250 }; 251 test_fuzz(filesets); 252} 253 254DEFINE_TEST(test_fuzz_iso9660) 255{ 256 static const char *fileset1[] = { 257 "test_fuzz_1.iso.Z", 258 NULL 259 }; 260 static const struct files filesets[] = { 261 {0, fileset1}, /* Exercise compress decompressor. */ 262 {1, fileset1}, 263 {1, NULL} 264 }; 265 test_fuzz(filesets); 266} 267 268DEFINE_TEST(test_fuzz_lzh) 269{ 270 static const char *fileset1[] = { 271 "test_fuzz.lzh", 272 NULL 273 }; 274 static const struct files filesets[] = { 275 {0, fileset1}, 276 {1, NULL} 277 }; 278 test_fuzz(filesets); 279} 280 281DEFINE_TEST(test_fuzz_mtree) 282{ 283 static const char *fileset1[] = { 284 "test_read_format_mtree.mtree", 285 NULL 286 }; 287 static const struct files filesets[] = { 288 {0, fileset1}, 289 {1, NULL} 290 }; 291 test_fuzz(filesets); 292} 293 294DEFINE_TEST(test_fuzz_rar) 295{ 296 static const char *fileset1[] = { 297 /* Uncompressed RAR test */ 298 "test_read_format_rar.rar", 299 NULL 300 }; 301 static const char *fileset2[] = { 302 /* RAR file with binary data */ 303 "test_read_format_rar_binary_data.rar", 304 NULL 305 }; 306 static const char *fileset3[] = { 307 /* Best Compressed RAR test */ 308 "test_read_format_rar_compress_best.rar", 309 NULL 310 }; 311 static const char *fileset4[] = { 312 /* Normal Compressed RAR test */ 313 "test_read_format_rar_compress_normal.rar", 314 NULL 315 }; 316 static const char *fileset5[] = { 317 /* Normal Compressed Multi LZSS blocks RAR test */ 318 "test_read_format_rar_multi_lzss_blocks.rar", 319 NULL 320 }; 321 static const char *fileset6[] = { 322 /* RAR with no EOF header */ 323 "test_read_format_rar_noeof.rar", 324 NULL 325 }; 326 static const char *fileset7[] = { 327 /* Best Compressed RAR file with both PPMd and LZSS blocks */ 328 "test_read_format_rar_ppmd_lzss_conversion.rar", 329 NULL 330 }; 331 static const char *fileset8[] = { 332 /* RAR with subblocks */ 333 "test_read_format_rar_subblock.rar", 334 NULL 335 }; 336 static const char *fileset9[] = { 337 /* RAR with Unicode filenames */ 338 "test_read_format_rar_unicode.rar", 339 NULL 340 }; 341 static const char *fileset10[] = { 342 "test_read_format_rar_multivolume.part0001.rar", 343 "test_read_format_rar_multivolume.part0002.rar", 344 "test_read_format_rar_multivolume.part0003.rar", 345 "test_read_format_rar_multivolume.part0004.rar", 346 NULL 347 }; 348 static const struct files filesets[] = { 349 {0, fileset1}, 350 {0, fileset2}, 351 {0, fileset3}, 352 {0, fileset4}, 353 {0, fileset5}, 354 {0, fileset6}, 355 {0, fileset7}, 356 {0, fileset8}, 357 {0, fileset9}, 358 {0, fileset10}, 359 {1, NULL} 360 }; 361 test_fuzz(filesets); 362} 363 364DEFINE_TEST(test_fuzz_tar) 365{ 366 static const char *fileset1[] = { 367 "test_compat_bzip2_1.tbz", 368 NULL 369 }; 370 static const char *fileset2[] = { 371 "test_compat_gtar_1.tar", 372 NULL 373 }; 374 static const char *fileset3[] = { 375 "test_compat_gzip_1.tgz", 376 NULL 377 }; 378 static const char *fileset4[] = { 379 "test_compat_gzip_2.tgz", 380 NULL 381 }; 382 static const char *fileset5[] = { 383 "test_compat_tar_hardlink_1.tar", 384 NULL 385 }; 386 static const char *fileset6[] = { 387 "test_compat_xz_1.txz", 388 NULL 389 }; 390 static const char *fileset7[] = { 391 "test_read_format_gtar_sparse_1_17_posix10_modified.tar", 392 NULL 393 }; 394 static const char *fileset8[] = { 395 "test_read_format_tar_empty_filename.tar", 396 NULL 397 }; 398 static const char *fileset9[] = { 399 "test_compat_lzop_1.tar.lzo", 400 NULL 401 }; 402 static const struct files filesets[] = { 403 {0, fileset1}, /* Exercise bzip2 decompressor. */ 404 {1, fileset1}, 405 {0, fileset2}, 406 {0, fileset3}, /* Exercise gzip decompressor. */ 407 {0, fileset4}, /* Exercise gzip decompressor. */ 408 {0, fileset5}, 409 {0, fileset6}, /* Exercise xz decompressor. */ 410 {0, fileset7}, 411 {0, fileset8}, 412 {0, fileset9}, /* Exercise lzo decompressor. */ 413 {1, NULL} 414 }; 415 test_fuzz(filesets); 416} 417 418DEFINE_TEST(test_fuzz_zip) 419{ 420 static const char *fileset1[] = { 421 "test_compat_zip_1.zip", 422 NULL 423 }; 424 static const char *fileset2[] = { 425 "test_compat_zip_2.zip", 426 NULL 427 }; 428 static const char *fileset3[] = { 429 "test_compat_zip_3.zip", 430 NULL 431 }; 432 static const char *fileset4[] = { 433 "test_compat_zip_4.zip", 434 NULL 435 }; 436 static const char *fileset5[] = { 437 "test_compat_zip_5.zip", 438 NULL 439 }; 440 static const char *fileset6[] = { 441 "test_compat_zip_6.zip", 442 NULL 443 }; 444 static const char *fileset7[] = { 445 "test_read_format_zip.zip", 446 NULL 447 }; 448 static const char *fileset8[] = { 449 "test_read_format_zip_comment_stored_1.zip", 450 NULL 451 }; 452 static const char *fileset9[] = { 453 "test_read_format_zip_comment_stored_2.zip", 454 NULL 455 }; 456 static const char *fileset10[] = { 457 "test_read_format_zip_encryption_data.zip", 458 NULL 459 }; 460 static const char *fileset11[] = { 461 "test_read_format_zip_encryption_header.zip", 462 NULL 463 }; 464 static const char *fileset12[] = { 465 "test_read_format_zip_encryption_partially.zip", 466 NULL 467 }; 468 static const char *fileset13[] = { 469 "test_read_format_zip_filename_cp866.zip", 470 NULL 471 }; 472 static const char *fileset14[] = { 473 "test_read_format_zip_filename_cp932.zip", 474 NULL 475 }; 476 static const char *fileset15[] = { 477 "test_read_format_zip_filename_koi8r.zip", 478 NULL 479 }; 480 static const char *fileset16[] = { 481 "test_read_format_zip_filename_utf8_jp.zip", 482 NULL 483 }; 484 static const char *fileset17[] = { 485 "test_read_format_zip_filename_utf8_ru.zip", 486 NULL 487 }; 488 static const char *fileset18[] = { 489 "test_read_format_zip_filename_utf8_ru2.zip", 490 NULL 491 }; 492 static const char *fileset19[] = { 493 "test_read_format_zip_length_at_end.zip", 494 NULL 495 }; 496 static const char *fileset20[] = { 497 "test_read_format_zip_mac_metadata.zip", 498 NULL 499 }; 500 static const char *fileset21[] = { 501 "test_read_format_zip_malformed1.zip", 502 NULL 503 }; 504 static const char *fileset22[] = { 505 "test_read_format_zip_msdos.zip", 506 NULL 507 }; 508 static const char *fileset23[] = { 509 "test_read_format_zip_nested.zip", 510 NULL 511 }; 512 static const char *fileset24[] = { 513 "test_read_format_zip_nofiletype.zip", 514 NULL 515 }; 516 static const char *fileset25[] = { 517 "test_read_format_zip_padded1.zip", 518 NULL 519 }; 520 static const char *fileset26[] = { 521 "test_read_format_zip_padded2.zip", 522 NULL 523 }; 524 static const char *fileset27[] = { 525 "test_read_format_zip_padded3.zip", 526 NULL 527 }; 528 static const char *fileset28[] = { 529 "test_read_format_zip_symlink.zip", 530 NULL 531 }; 532 static const char *fileset29[] = { 533 "test_read_format_zip_traditional_encryption_data.zip", 534 NULL 535 }; 536 static const char *fileset30[] = { 537 "test_read_format_zip_ux.zip", 538 NULL 539 }; 540 static const char *fileset31[] = { 541 "test_read_format_zip_winzip_aes128.zip", 542 NULL 543 }; 544 static const char *fileset32[] = { 545 "test_read_format_zip_winzip_aes256.zip", 546 NULL 547 }; 548 static const char *fileset33[] = { 549 "test_read_format_zip_winzip_aes256_large.zip", 550 NULL 551 }; 552 static const char *fileset34[] = { 553 "test_read_format_zip_winzip_aes256_stored.zip", 554 NULL 555 }; 556 static const char *fileset35[] = { 557 "test_read_format_zip_zip64a.zip", 558 NULL 559 }; 560 static const char *fileset36[] = { 561 "test_read_format_zip_zip64b.zip", 562 NULL 563 }; 564 565 static const struct files filesets[] = { 566 {0, fileset1}, 567 {0, fileset2}, 568 {0, fileset3}, 569 {0, fileset4}, 570 {0, fileset5}, 571 {0, fileset6}, 572 {0, fileset7}, 573 {0, fileset8}, 574 {0, fileset9}, 575 {0, fileset10}, 576 {0, fileset11}, 577 {0, fileset12}, 578 {0, fileset13}, 579 {0, fileset14}, 580 {0, fileset15}, 581 {0, fileset16}, 582 {0, fileset17}, 583 {0, fileset18}, 584 {0, fileset19}, 585 {0, fileset20}, 586 {0, fileset21}, 587 {0, fileset22}, 588 {0, fileset23}, 589 {0, fileset24}, 590 {0, fileset25}, 591 {0, fileset26}, 592 {0, fileset27}, 593 {0, fileset28}, 594 {0, fileset29}, 595 {0, fileset30}, 596 {0, fileset31}, 597 {0, fileset32}, 598 {0, fileset33}, 599 {0, fileset34}, 600 {0, fileset35}, 601 {0, fileset36}, 602 {1, NULL} 603 }; 604 test_fuzz(filesets); 605} 606 607