cryptosoft_xform.c revision 1.15
1 /* $NetBSD: cryptosoft_xform.c,v 1.15 2011/05/05 17:44:39 drochner Exp $ */ 2 /* $FreeBSD: src/sys/opencrypto/xform.c,v 1.1.2.1 2002/11/21 23:34:23 sam Exp $ */ 3 /* $OpenBSD: xform.c,v 1.19 2002/08/16 22:47:25 dhartmei Exp $ */ 4 5 /* 6 * The authors of this code are John Ioannidis (ji (at) tla.org), 7 * Angelos D. Keromytis (kermit (at) csd.uch.gr) and 8 * Niels Provos (provos (at) physnet.uni-hamburg.de). 9 * 10 * This code was written by John Ioannidis for BSD/OS in Athens, Greece, 11 * in November 1995. 12 * 13 * Ported to OpenBSD and NetBSD, with additional transforms, in December 1996, 14 * by Angelos D. Keromytis. 15 * 16 * Additional transforms and features in 1997 and 1998 by Angelos D. Keromytis 17 * and Niels Provos. 18 * 19 * Additional features in 1999 by Angelos D. Keromytis. 20 * 21 * Copyright (C) 1995, 1996, 1997, 1998, 1999 by John Ioannidis, 22 * Angelos D. Keromytis and Niels Provos. 23 * 24 * Copyright (C) 2001, Angelos D. Keromytis. 25 * 26 * Permission to use, copy, and modify this software with or without fee 27 * is hereby granted, provided that this entire notice is included in 28 * all copies of any software which is or includes a copy or 29 * modification of this software. 30 * You may use this code under the GNU public license if you so wish. Please 31 * contribute changes back to the authors under this freer than GPL license 32 * so that we may further the use of strong encryption without limitations to 33 * all. 34 * 35 * THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR 36 * IMPLIED WARRANTY. IN PARTICULAR, NONE OF THE AUTHORS MAKES ANY 37 * REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE 38 * MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR 39 * PURPOSE. 40 */ 41 42 #include <sys/cdefs.h> 43 __KERNEL_RCSID(1, "$NetBSD: cryptosoft_xform.c,v 1.15 2011/05/05 17:44:39 drochner Exp $"); 44 45 #include <crypto/blowfish/blowfish.h> 46 #include <crypto/cast128/cast128.h> 47 #include <crypto/des/des.h> 48 #include <crypto/rijndael/rijndael.h> 49 #include <crypto/skipjack/skipjack.h> 50 #include <crypto/camellia/camellia.h> 51 52 #include <opencrypto/deflate.h> 53 54 #include <sys/md5.h> 55 #include <sys/rmd160.h> 56 #include <sys/sha1.h> 57 58 struct swcr_auth_hash { 59 const struct auth_hash *auth_hash; 60 void (*Init)(void *); 61 int (*Update)(void *, const uint8_t *, uint16_t); 62 void (*Final)(uint8_t *, void *); 63 }; 64 65 struct swcr_enc_xform { 66 const struct enc_xform *enc_xform; 67 void (*encrypt)(void *, uint8_t *); 68 void (*decrypt)(void *, uint8_t *); 69 int (*setkey)(uint8_t **, const uint8_t *, int len); 70 void (*zerokey)(uint8_t **); 71 }; 72 73 struct swcr_comp_algo { 74 const struct comp_algo *unused_comp_algo; 75 uint32_t (*compress)(uint8_t *, uint32_t, uint8_t **); 76 uint32_t (*decompress)(uint8_t *, uint32_t, uint8_t **, int); 77 }; 78 79 static void null_encrypt(void *, u_int8_t *); 80 static void null_decrypt(void *, u_int8_t *); 81 static int null_setkey(u_int8_t **, const u_int8_t *, int); 82 static void null_zerokey(u_int8_t **); 83 84 static int des1_setkey(u_int8_t **, const u_int8_t *, int); 85 static int des3_setkey(u_int8_t **, const u_int8_t *, int); 86 static int blf_setkey(u_int8_t **, const u_int8_t *, int); 87 static int cast5_setkey(u_int8_t **, const u_int8_t *, int); 88 static int skipjack_setkey(u_int8_t **, const u_int8_t *, int); 89 static int rijndael128_setkey(u_int8_t **, const u_int8_t *, int); 90 static int cml_setkey(u_int8_t **, const u_int8_t *, int); 91 static void des1_encrypt(void *, u_int8_t *); 92 static void des3_encrypt(void *, u_int8_t *); 93 static void blf_encrypt(void *, u_int8_t *); 94 static void cast5_encrypt(void *, u_int8_t *); 95 static void skipjack_encrypt(void *, u_int8_t *); 96 static void rijndael128_encrypt(void *, u_int8_t *); 97 static void cml_encrypt(void *, u_int8_t *); 98 static void des1_decrypt(void *, u_int8_t *); 99 static void des3_decrypt(void *, u_int8_t *); 100 static void blf_decrypt(void *, u_int8_t *); 101 static void cast5_decrypt(void *, u_int8_t *); 102 static void skipjack_decrypt(void *, u_int8_t *); 103 static void rijndael128_decrypt(void *, u_int8_t *); 104 static void cml_decrypt(void *, u_int8_t *); 105 static void des1_zerokey(u_int8_t **); 106 static void des3_zerokey(u_int8_t **); 107 static void blf_zerokey(u_int8_t **); 108 static void cast5_zerokey(u_int8_t **); 109 static void skipjack_zerokey(u_int8_t **); 110 static void rijndael128_zerokey(u_int8_t **); 111 static void cml_zerokey(u_int8_t **); 112 113 static void null_init(void *); 114 static int null_update(void *, const u_int8_t *, u_int16_t); 115 static void null_final(u_int8_t *, void *); 116 117 static int MD5Update_int(void *, const u_int8_t *, u_int16_t); 118 static void SHA1Init_int(void *); 119 static int SHA1Update_int(void *, const u_int8_t *, u_int16_t); 120 static void SHA1Final_int(u_int8_t *, void *); 121 122 123 static int RMD160Update_int(void *, const u_int8_t *, u_int16_t); 124 static int SHA1Update_int(void *, const u_int8_t *, u_int16_t); 125 static void SHA1Final_int(u_int8_t *, void *); 126 static int RMD160Update_int(void *, const u_int8_t *, u_int16_t); 127 static int SHA256Update_int(void *, const u_int8_t *, u_int16_t); 128 static int SHA384Update_int(void *, const u_int8_t *, u_int16_t); 129 static int SHA512Update_int(void *, const u_int8_t *, u_int16_t); 130 131 static u_int32_t deflate_compress(u_int8_t *, u_int32_t, u_int8_t **); 132 static u_int32_t deflate_decompress(u_int8_t *, u_int32_t, u_int8_t **, int); 133 static u_int32_t gzip_compress(u_int8_t *, u_int32_t, u_int8_t **); 134 static u_int32_t gzip_decompress(u_int8_t *, u_int32_t, u_int8_t **, int); 135 136 /* Encryption instances */ 137 static const struct swcr_enc_xform swcr_enc_xform_null = { 138 &enc_xform_null, 139 null_encrypt, 140 null_decrypt, 141 null_setkey, 142 null_zerokey, 143 }; 144 145 static const struct swcr_enc_xform swcr_enc_xform_des = { 146 &enc_xform_des, 147 des1_encrypt, 148 des1_decrypt, 149 des1_setkey, 150 des1_zerokey, 151 }; 152 153 static const struct swcr_enc_xform swcr_enc_xform_3des = { 154 &enc_xform_3des, 155 des3_encrypt, 156 des3_decrypt, 157 des3_setkey, 158 des3_zerokey 159 }; 160 161 static const struct swcr_enc_xform swcr_enc_xform_blf = { 162 &enc_xform_blf, 163 blf_encrypt, 164 blf_decrypt, 165 blf_setkey, 166 blf_zerokey 167 }; 168 169 static const struct swcr_enc_xform swcr_enc_xform_cast5 = { 170 &enc_xform_cast5, 171 cast5_encrypt, 172 cast5_decrypt, 173 cast5_setkey, 174 cast5_zerokey 175 }; 176 177 static const struct swcr_enc_xform swcr_enc_xform_skipjack = { 178 &enc_xform_skipjack, 179 skipjack_encrypt, 180 skipjack_decrypt, 181 skipjack_setkey, 182 skipjack_zerokey 183 }; 184 185 static const struct swcr_enc_xform swcr_enc_xform_rijndael128 = { 186 &enc_xform_rijndael128, 187 rijndael128_encrypt, 188 rijndael128_decrypt, 189 rijndael128_setkey, 190 rijndael128_zerokey, 191 }; 192 193 static const struct swcr_enc_xform swcr_enc_xform_arc4 = { 194 &enc_xform_arc4, 195 NULL, 196 NULL, 197 NULL, 198 NULL, 199 }; 200 201 static const struct swcr_enc_xform swcr_enc_xform_camellia = { 202 &enc_xform_camellia, 203 cml_encrypt, 204 cml_decrypt, 205 cml_setkey, 206 cml_zerokey 207 }; 208 209 /* Authentication instances */ 210 static const struct swcr_auth_hash swcr_auth_hash_null = { 211 &auth_hash_null, 212 null_init, null_update, null_final 213 }; 214 215 static const struct swcr_auth_hash swcr_auth_hash_hmac_md5 = { 216 &auth_hash_hmac_md5, 217 (void (*) (void *)) MD5Init, MD5Update_int, 218 (void (*) (u_int8_t *, void *)) MD5Final 219 }; 220 221 static const struct swcr_auth_hash swcr_auth_hash_hmac_sha1 = { 222 &auth_hash_hmac_sha1, 223 SHA1Init_int, SHA1Update_int, SHA1Final_int 224 }; 225 226 static const struct swcr_auth_hash swcr_auth_hash_hmac_ripemd_160 = { 227 &auth_hash_hmac_ripemd_160, 228 (void (*)(void *)) RMD160Init, RMD160Update_int, 229 (void (*)(u_int8_t *, void *)) RMD160Final 230 }; 231 static const struct swcr_auth_hash swcr_auth_hash_hmac_md5_96 = { 232 &auth_hash_hmac_md5_96, 233 (void (*) (void *)) MD5Init, MD5Update_int, 234 (void (*) (u_int8_t *, void *)) MD5Final 235 }; 236 237 static const struct swcr_auth_hash swcr_auth_hash_hmac_sha1_96 = { 238 &auth_hash_hmac_sha1_96, 239 SHA1Init_int, SHA1Update_int, SHA1Final_int 240 }; 241 242 static const struct swcr_auth_hash swcr_auth_hash_hmac_ripemd_160_96 = { 243 &auth_hash_hmac_ripemd_160_96, 244 (void (*)(void *)) RMD160Init, RMD160Update_int, 245 (void (*)(u_int8_t *, void *)) RMD160Final 246 }; 247 248 static const struct swcr_auth_hash swcr_auth_hash_key_md5 = { 249 &auth_hash_key_md5, 250 (void (*)(void *)) MD5Init, MD5Update_int, 251 (void (*)(u_int8_t *, void *)) MD5Final 252 }; 253 254 static const struct swcr_auth_hash swcr_auth_hash_key_sha1 = { 255 &auth_hash_key_sha1, 256 SHA1Init_int, SHA1Update_int, SHA1Final_int 257 }; 258 259 static const struct swcr_auth_hash swcr_auth_hash_md5 = { 260 &auth_hash_md5, 261 (void (*) (void *)) MD5Init, MD5Update_int, 262 (void (*) (u_int8_t *, void *)) MD5Final 263 }; 264 265 static const struct swcr_auth_hash swcr_auth_hash_sha1 = { 266 &auth_hash_sha1, 267 (void (*)(void *)) SHA1Init, SHA1Update_int, 268 (void (*)(u_int8_t *, void *)) SHA1Final 269 }; 270 271 static const struct swcr_auth_hash swcr_auth_hash_hmac_sha2_256 = { 272 &auth_hash_hmac_sha2_256, 273 (void (*)(void *)) SHA256_Init, SHA256Update_int, 274 (void (*)(u_int8_t *, void *)) SHA256_Final 275 }; 276 277 static const struct swcr_auth_hash swcr_auth_hash_hmac_sha2_384 = { 278 &auth_hash_hmac_sha2_384, 279 (void (*)(void *)) SHA384_Init, SHA384Update_int, 280 (void (*)(u_int8_t *, void *)) SHA384_Final 281 }; 282 283 static const struct swcr_auth_hash swcr_auth_hash_hmac_sha2_512 = { 284 &auth_hash_hmac_sha2_384, 285 (void (*)(void *)) SHA512_Init, SHA512Update_int, 286 (void (*)(u_int8_t *, void *)) SHA512_Final 287 }; 288 289 /* Compression instance */ 290 static const struct swcr_comp_algo swcr_comp_algo_deflate = { 291 &comp_algo_deflate, 292 deflate_compress, 293 deflate_decompress 294 }; 295 296 static const struct swcr_comp_algo swcr_comp_algo_deflate_nogrow = { 297 &comp_algo_deflate_nogrow, 298 deflate_compress, 299 deflate_decompress 300 }; 301 302 static const struct swcr_comp_algo swcr_comp_algo_gzip = { 303 &comp_algo_deflate, 304 gzip_compress, 305 gzip_decompress 306 }; 307 308 /* 309 * Encryption wrapper routines. 310 */ 311 static void 312 null_encrypt(void *key, u_int8_t *blk) 313 { 314 } 315 static void 316 null_decrypt(void *key, u_int8_t *blk) 317 { 318 } 319 static int 320 null_setkey(u_int8_t **sched, const u_int8_t *key, int len) 321 { 322 *sched = NULL; 323 return 0; 324 } 325 static void 326 null_zerokey(u_int8_t **sched) 327 { 328 *sched = NULL; 329 } 330 331 static void 332 des1_encrypt(void *key, u_int8_t *blk) 333 { 334 des_cblock *cb = (des_cblock *) blk; 335 des_key_schedule *p = (des_key_schedule *) key; 336 337 des_ecb_encrypt(cb, cb, p[0], DES_ENCRYPT); 338 } 339 340 static void 341 des1_decrypt(void *key, u_int8_t *blk) 342 { 343 des_cblock *cb = (des_cblock *) blk; 344 des_key_schedule *p = (des_key_schedule *) key; 345 346 des_ecb_encrypt(cb, cb, p[0], DES_DECRYPT); 347 } 348 349 static int 350 des1_setkey(u_int8_t **sched, const u_int8_t *key, int len) 351 { 352 des_key_schedule *p; 353 int err; 354 355 p = malloc(sizeof (des_key_schedule), 356 M_CRYPTO_DATA, M_NOWAIT|M_ZERO); 357 if (p != NULL) { 358 des_set_key((des_cblock *)__UNCONST(key), p[0]); 359 err = 0; 360 } else 361 err = ENOMEM; 362 *sched = (u_int8_t *) p; 363 return err; 364 } 365 366 static void 367 des1_zerokey(u_int8_t **sched) 368 { 369 memset(*sched, 0, sizeof (des_key_schedule)); 370 free(*sched, M_CRYPTO_DATA); 371 *sched = NULL; 372 } 373 374 static void 375 des3_encrypt(void *key, u_int8_t *blk) 376 { 377 des_cblock *cb = (des_cblock *) blk; 378 des_key_schedule *p = (des_key_schedule *) key; 379 380 des_ecb3_encrypt(cb, cb, p[0], p[1], p[2], DES_ENCRYPT); 381 } 382 383 static void 384 des3_decrypt(void *key, u_int8_t *blk) 385 { 386 des_cblock *cb = (des_cblock *) blk; 387 des_key_schedule *p = (des_key_schedule *) key; 388 389 des_ecb3_encrypt(cb, cb, p[0], p[1], p[2], DES_DECRYPT); 390 } 391 392 static int 393 des3_setkey(u_int8_t **sched, const u_int8_t *key, int len) 394 { 395 des_key_schedule *p; 396 int err; 397 398 p = malloc(3*sizeof (des_key_schedule), 399 M_CRYPTO_DATA, M_NOWAIT|M_ZERO); 400 if (p != NULL) { 401 des_set_key((des_cblock *)__UNCONST(key + 0), p[0]); 402 des_set_key((des_cblock *)__UNCONST(key + 8), p[1]); 403 des_set_key((des_cblock *)__UNCONST(key + 16), p[2]); 404 err = 0; 405 } else 406 err = ENOMEM; 407 *sched = (u_int8_t *) p; 408 return err; 409 } 410 411 static void 412 des3_zerokey(u_int8_t **sched) 413 { 414 memset(*sched, 0, 3*sizeof (des_key_schedule)); 415 free(*sched, M_CRYPTO_DATA); 416 *sched = NULL; 417 } 418 419 static void 420 blf_encrypt(void *key, u_int8_t *blk) 421 { 422 423 BF_ecb_encrypt(blk, blk, (BF_KEY *)key, 1); 424 } 425 426 static void 427 blf_decrypt(void *key, u_int8_t *blk) 428 { 429 430 BF_ecb_encrypt(blk, blk, (BF_KEY *)key, 0); 431 } 432 433 static int 434 blf_setkey(u_int8_t **sched, const u_int8_t *key, int len) 435 { 436 int err; 437 438 *sched = malloc(sizeof(BF_KEY), 439 M_CRYPTO_DATA, M_NOWAIT|M_ZERO); 440 if (*sched != NULL) { 441 BF_set_key((BF_KEY *) *sched, len, key); 442 err = 0; 443 } else 444 err = ENOMEM; 445 return err; 446 } 447 448 static void 449 blf_zerokey(u_int8_t **sched) 450 { 451 memset(*sched, 0, sizeof(BF_KEY)); 452 free(*sched, M_CRYPTO_DATA); 453 *sched = NULL; 454 } 455 456 static void 457 cast5_encrypt(void *key, u_int8_t *blk) 458 { 459 cast128_encrypt((cast128_key *) key, blk, blk); 460 } 461 462 static void 463 cast5_decrypt(void *key, u_int8_t *blk) 464 { 465 cast128_decrypt((cast128_key *) key, blk, blk); 466 } 467 468 static int 469 cast5_setkey(u_int8_t **sched, const u_int8_t *key, int len) 470 { 471 int err; 472 473 *sched = malloc(sizeof(cast128_key), M_CRYPTO_DATA, 474 M_NOWAIT|M_ZERO); 475 if (*sched != NULL) { 476 cast128_setkey((cast128_key *)*sched, key, len); 477 err = 0; 478 } else 479 err = ENOMEM; 480 return err; 481 } 482 483 static void 484 cast5_zerokey(u_int8_t **sched) 485 { 486 memset(*sched, 0, sizeof(cast128_key)); 487 free(*sched, M_CRYPTO_DATA); 488 *sched = NULL; 489 } 490 491 static void 492 skipjack_encrypt(void *key, u_int8_t *blk) 493 { 494 skipjack_forwards(blk, blk, (u_int8_t **) key); 495 } 496 497 static void 498 skipjack_decrypt(void *key, u_int8_t *blk) 499 { 500 skipjack_backwards(blk, blk, (u_int8_t **) key); 501 } 502 503 static int 504 skipjack_setkey(u_int8_t **sched, const u_int8_t *key, int len) 505 { 506 int err; 507 508 /* NB: allocate all the memory that's needed at once */ 509 /* XXX assumes bytes are aligned on sizeof(u_char) == 1 boundaries. 510 * Will this break a pdp-10, Cray-1, or GE-645 port? 511 */ 512 *sched = malloc(10 * (sizeof(u_int8_t *) + 0x100), 513 M_CRYPTO_DATA, M_NOWAIT|M_ZERO); 514 515 if (*sched != NULL) { 516 517 u_int8_t** key_tables = (u_int8_t**) *sched; 518 u_int8_t* table = (u_int8_t*) &key_tables[10]; 519 int k; 520 521 for (k = 0; k < 10; k++) { 522 key_tables[k] = table; 523 table += 0x100; 524 } 525 subkey_table_gen(key, (u_int8_t **) *sched); 526 err = 0; 527 } else 528 err = ENOMEM; 529 return err; 530 } 531 532 static void 533 skipjack_zerokey(u_int8_t **sched) 534 { 535 memset(*sched, 0, 10 * (sizeof(u_int8_t *) + 0x100)); 536 free(*sched, M_CRYPTO_DATA); 537 *sched = NULL; 538 } 539 540 static void 541 rijndael128_encrypt(void *key, u_int8_t *blk) 542 { 543 rijndael_encrypt((rijndael_ctx *) key, (u_char *) blk, (u_char *) blk); 544 } 545 546 static void 547 rijndael128_decrypt(void *key, u_int8_t *blk) 548 { 549 rijndael_decrypt((rijndael_ctx *) key, (u_char *) blk, 550 (u_char *) blk); 551 } 552 553 static int 554 rijndael128_setkey(u_int8_t **sched, const u_int8_t *key, int len) 555 { 556 int err; 557 558 *sched = malloc(sizeof(rijndael_ctx), M_CRYPTO_DATA, 559 M_NOWAIT|M_ZERO); 560 if (*sched != NULL) { 561 rijndael_set_key((rijndael_ctx *) *sched, key, len * 8); 562 err = 0; 563 } else 564 err = ENOMEM; 565 return err; 566 } 567 568 static void 569 rijndael128_zerokey(u_int8_t **sched) 570 { 571 memset(*sched, 0, sizeof(rijndael_ctx)); 572 free(*sched, M_CRYPTO_DATA); 573 *sched = NULL; 574 } 575 576 static void 577 cml_encrypt(void *key, u_int8_t *blk) 578 { 579 580 camellia_encrypt(key, blk, blk); 581 } 582 583 static void 584 cml_decrypt(void *key, u_int8_t *blk) 585 { 586 587 camellia_decrypt(key, blk, blk); 588 } 589 590 static int 591 cml_setkey(u_int8_t **sched, const u_int8_t *key, int len) 592 { 593 int err; 594 595 if (len != 16 && len != 24 && len != 32) 596 return (EINVAL); 597 *sched = malloc(sizeof(camellia_ctx), M_CRYPTO_DATA, 598 M_NOWAIT|M_ZERO); 599 if (*sched != NULL) { 600 camellia_set_key((camellia_ctx *) *sched, key, len * 8); 601 err = 0; 602 } else 603 err = ENOMEM; 604 return err; 605 } 606 607 static void 608 cml_zerokey(u_int8_t **sched) 609 { 610 611 memset(*sched, 0, sizeof(camellia_ctx)); 612 free(*sched, M_CRYPTO_DATA); 613 *sched = NULL; 614 } 615 616 /* 617 * And now for auth. 618 */ 619 620 static void 621 null_init(void *ctx) 622 { 623 } 624 625 static int 626 null_update(void *ctx, const u_int8_t *buf, 627 u_int16_t len) 628 { 629 return 0; 630 } 631 632 static void 633 null_final(u_int8_t *buf, void *ctx) 634 { 635 if (buf != (u_int8_t *) 0) 636 memset(buf, 0, 12); 637 } 638 639 static int 640 RMD160Update_int(void *ctx, const u_int8_t *buf, u_int16_t len) 641 { 642 RMD160Update(ctx, buf, len); 643 return 0; 644 } 645 646 static int 647 MD5Update_int(void *ctx, const u_int8_t *buf, u_int16_t len) 648 { 649 MD5Update(ctx, buf, len); 650 return 0; 651 } 652 653 static void 654 SHA1Init_int(void *ctx) 655 { 656 SHA1Init(ctx); 657 } 658 659 static int 660 SHA1Update_int(void *ctx, const u_int8_t *buf, u_int16_t len) 661 { 662 SHA1Update(ctx, buf, len); 663 return 0; 664 } 665 666 static void 667 SHA1Final_int(u_int8_t *blk, void *ctx) 668 { 669 SHA1Final(blk, ctx); 670 } 671 672 static int 673 SHA256Update_int(void *ctx, const u_int8_t *buf, u_int16_t len) 674 { 675 SHA256_Update(ctx, buf, len); 676 return 0; 677 } 678 679 static int 680 SHA384Update_int(void *ctx, const u_int8_t *buf, u_int16_t len) 681 { 682 SHA384_Update(ctx, buf, len); 683 return 0; 684 } 685 686 static int 687 SHA512Update_int(void *ctx, const u_int8_t *buf, u_int16_t len) 688 { 689 SHA512_Update(ctx, buf, len); 690 return 0; 691 } 692 693 /* 694 * And compression 695 */ 696 697 static u_int32_t 698 deflate_compress(u_int8_t *data, u_int32_t size, u_int8_t **out) 699 { 700 return deflate_global(data, size, 0, out, 0); 701 } 702 703 static u_int32_t 704 deflate_decompress(u_int8_t *data, u_int32_t size, u_int8_t **out, 705 int size_hint) 706 { 707 return deflate_global(data, size, 1, out, size_hint); 708 } 709 710 static u_int32_t 711 gzip_compress(u_int8_t *data, u_int32_t size, u_int8_t **out) 712 { 713 return gzip_global(data, size, 0, out, 0); 714 } 715 716 static u_int32_t 717 gzip_decompress(u_int8_t *data, u_int32_t size, u_int8_t **out, 718 int size_hint) 719 { 720 return gzip_global(data, size, 1, out, size_hint); 721 } 722
Indexes created Fri Sep 26 20:09:58 GMT 2025