17c478bd9Sstevel@tonic-gate /* 27c478bd9Sstevel@tonic-gate * CDDL HEADER START 37c478bd9Sstevel@tonic-gate * 47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5*7257d1b4Sraf * Common Development and Distribution License (the "License"). 6*7257d1b4Sraf * You may not use this file except in compliance with the License. 77c478bd9Sstevel@tonic-gate * 87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 117c478bd9Sstevel@tonic-gate * and limitations under the License. 127c478bd9Sstevel@tonic-gate * 137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 187c478bd9Sstevel@tonic-gate * 197c478bd9Sstevel@tonic-gate * CDDL HEADER END 207c478bd9Sstevel@tonic-gate */ 21e8031f0aSraf 227c478bd9Sstevel@tonic-gate /* 23*7257d1b4Sraf * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 247c478bd9Sstevel@tonic-gate * Use is subject to license terms. 257c478bd9Sstevel@tonic-gate */ 267c478bd9Sstevel@tonic-gate 277c478bd9Sstevel@tonic-gate /* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */ 287c478bd9Sstevel@tonic-gate /* All Rights Reserved */ 297c478bd9Sstevel@tonic-gate 307c478bd9Sstevel@tonic-gate /* 317c478bd9Sstevel@tonic-gate * Portions of this source code were derived from Berkeley 4.3 BSD 327c478bd9Sstevel@tonic-gate * under license from the Regents of the University of California. 337c478bd9Sstevel@tonic-gate */ 347c478bd9Sstevel@tonic-gate 357c478bd9Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 367c478bd9Sstevel@tonic-gate 377c478bd9Sstevel@tonic-gate /* 387c478bd9Sstevel@tonic-gate * DES encryption library routines 397c478bd9Sstevel@tonic-gate */ 407c478bd9Sstevel@tonic-gate 417c478bd9Sstevel@tonic-gate #include <sys/types.h> 427c478bd9Sstevel@tonic-gate #include <rpc/des_crypt.h> 437c478bd9Sstevel@tonic-gate #include <sys/stat.h> 447c478bd9Sstevel@tonic-gate #include <fcntl.h> 457c478bd9Sstevel@tonic-gate #include <unistd.h> 467c478bd9Sstevel@tonic-gate #include <stropts.h> 477c478bd9Sstevel@tonic-gate #ifdef sun 487c478bd9Sstevel@tonic-gate #include <sys/ioctl.h> 497c478bd9Sstevel@tonic-gate #include <sys/des.h> 507c478bd9Sstevel@tonic-gate #ifdef _KERNEL 517c478bd9Sstevel@tonic-gate #include <sys/conf.h> 527c478bd9Sstevel@tonic-gate #define getdesfd() (cdevsw[11].d_open(0, 0) ? -1 : 0) 537c478bd9Sstevel@tonic-gate #define ioctl(a, b, c) (cdevsw[11].d_ioctl(0, b, c, 0) ? -1 : 0) 547c478bd9Sstevel@tonic-gate #ifndef CRYPT 557c478bd9Sstevel@tonic-gate #define __des_crypt(a, b, c) 0 567c478bd9Sstevel@tonic-gate #endif 577c478bd9Sstevel@tonic-gate #else 587c478bd9Sstevel@tonic-gate #define getdesfd() (open("/dev/des", 0, 0)) 597c478bd9Sstevel@tonic-gate #endif 607c478bd9Sstevel@tonic-gate #else 617c478bd9Sstevel@tonic-gate #include <des/des.h> 627c478bd9Sstevel@tonic-gate #endif 637c478bd9Sstevel@tonic-gate 647c478bd9Sstevel@tonic-gate #include "des_soft.h" 657c478bd9Sstevel@tonic-gate 667c478bd9Sstevel@tonic-gate /* 677c478bd9Sstevel@tonic-gate * To see if chip is installed 687c478bd9Sstevel@tonic-gate */ 697c478bd9Sstevel@tonic-gate #define UNOPENED (-2) 707c478bd9Sstevel@tonic-gate 717c478bd9Sstevel@tonic-gate /* 727c478bd9Sstevel@tonic-gate * Copy 8 bytes 737c478bd9Sstevel@tonic-gate */ 747c478bd9Sstevel@tonic-gate #define COPY8(src, dst) { \ 757c478bd9Sstevel@tonic-gate char *a = (char *)dst; \ 767c478bd9Sstevel@tonic-gate char *b = (char *)src; \ 777c478bd9Sstevel@tonic-gate *a++ = *b++; *a++ = *b++; *a++ = *b++; *a++ = *b++; \ 787c478bd9Sstevel@tonic-gate *a++ = *b++; *a++ = *b++; *a++ = *b++; *a++ = *b++; \ 797c478bd9Sstevel@tonic-gate } 807c478bd9Sstevel@tonic-gate 817c478bd9Sstevel@tonic-gate /* 827c478bd9Sstevel@tonic-gate * Copy multiple of 8 bytes 837c478bd9Sstevel@tonic-gate */ 847c478bd9Sstevel@tonic-gate #define DESCOPY(src, dst, len) { \ 857c478bd9Sstevel@tonic-gate char *a = (char *)dst; \ 867c478bd9Sstevel@tonic-gate char *b = (char *)src; \ 877c478bd9Sstevel@tonic-gate int i; \ 887c478bd9Sstevel@tonic-gate for (i = (int)len; i > 0; i -= 8) { \ 897c478bd9Sstevel@tonic-gate *a++ = *b++; *a++ = *b++; *a++ = *b++; *a++ = *b++; \ 907c478bd9Sstevel@tonic-gate *a++ = *b++; *a++ = *b++; *a++ = *b++; *a++ = *b++; \ 917c478bd9Sstevel@tonic-gate } \ 927c478bd9Sstevel@tonic-gate } 937c478bd9Sstevel@tonic-gate static int common_crypt(char *, char *, unsigned, unsigned, struct desparams *); 947c478bd9Sstevel@tonic-gate 957c478bd9Sstevel@tonic-gate /* 967c478bd9Sstevel@tonic-gate * CBC mode encryption 977c478bd9Sstevel@tonic-gate */ 987c478bd9Sstevel@tonic-gate int 997c478bd9Sstevel@tonic-gate cbc_crypt(char *key, char *buf, size_t len, unsigned int mode, char *ivec) 1007c478bd9Sstevel@tonic-gate { 1017c478bd9Sstevel@tonic-gate int err = 0; 1027c478bd9Sstevel@tonic-gate 1037c478bd9Sstevel@tonic-gate /* EXPORT DELETE START */ 1047c478bd9Sstevel@tonic-gate struct desparams dp; 1057c478bd9Sstevel@tonic-gate 1067c478bd9Sstevel@tonic-gate dp.des_mode = CBC; 1077c478bd9Sstevel@tonic-gate COPY8(ivec, dp.des_ivec); 1087c478bd9Sstevel@tonic-gate err = common_crypt(key, buf, len, mode, &dp); 1097c478bd9Sstevel@tonic-gate COPY8(dp.des_ivec, ivec); 1107c478bd9Sstevel@tonic-gate /* EXPORT DELETE END */ 1117c478bd9Sstevel@tonic-gate return (err); 1127c478bd9Sstevel@tonic-gate } 1137c478bd9Sstevel@tonic-gate 1147c478bd9Sstevel@tonic-gate 1157c478bd9Sstevel@tonic-gate /* 1167c478bd9Sstevel@tonic-gate * ECB mode encryption 1177c478bd9Sstevel@tonic-gate */ 1187c478bd9Sstevel@tonic-gate int 1197c478bd9Sstevel@tonic-gate ecb_crypt(char *key, char *buf, size_t len, unsigned int mode) 1207c478bd9Sstevel@tonic-gate { 1217c478bd9Sstevel@tonic-gate int ret = 0; 1227c478bd9Sstevel@tonic-gate 1237c478bd9Sstevel@tonic-gate /* EXPORT DELETE START */ 1247c478bd9Sstevel@tonic-gate struct desparams dp; 1257c478bd9Sstevel@tonic-gate 1267c478bd9Sstevel@tonic-gate dp.des_mode = ECB; 1277c478bd9Sstevel@tonic-gate ret = common_crypt(key, buf, len, mode, &dp); 1287c478bd9Sstevel@tonic-gate /* EXPORT DELETE END */ 1297c478bd9Sstevel@tonic-gate return (ret); 1307c478bd9Sstevel@tonic-gate } 1317c478bd9Sstevel@tonic-gate 1327c478bd9Sstevel@tonic-gate 1337c478bd9Sstevel@tonic-gate /* EXPORT DELETE START */ 1347c478bd9Sstevel@tonic-gate /* 1357c478bd9Sstevel@tonic-gate * Common code to cbc_crypt() & ecb_crypt() 1367c478bd9Sstevel@tonic-gate */ 1377c478bd9Sstevel@tonic-gate static int 138*7257d1b4Sraf common_crypt(char *key, char *buf, unsigned len, 139*7257d1b4Sraf unsigned mode, struct desparams *desp) 1407c478bd9Sstevel@tonic-gate { 1417c478bd9Sstevel@tonic-gate int desdev; 1427c478bd9Sstevel@tonic-gate int res; 1437c478bd9Sstevel@tonic-gate int g_desfd = UNOPENED; 1447c478bd9Sstevel@tonic-gate 1457c478bd9Sstevel@tonic-gate if ((len % 8) != 0 || len > DES_MAXDATA) { 1467c478bd9Sstevel@tonic-gate return (DESERR_BADPARAM); 1477c478bd9Sstevel@tonic-gate } 1487c478bd9Sstevel@tonic-gate desp->des_dir = 1497c478bd9Sstevel@tonic-gate ((mode & DES_DIRMASK) == DES_ENCRYPT) ? ENCRYPT : DECRYPT; 1507c478bd9Sstevel@tonic-gate 1517c478bd9Sstevel@tonic-gate desdev = mode & DES_DEVMASK; 1527c478bd9Sstevel@tonic-gate COPY8(key, desp->des_key); 1537c478bd9Sstevel@tonic-gate #ifdef sun 1547c478bd9Sstevel@tonic-gate if (desdev == DES_HW) { 1557c478bd9Sstevel@tonic-gate if (g_desfd < 0) { 1567c478bd9Sstevel@tonic-gate if (g_desfd == -1 || (g_desfd = getdesfd()) < 0) { 1577c478bd9Sstevel@tonic-gate goto software; /* no hardware device */ 1587c478bd9Sstevel@tonic-gate } 1597c478bd9Sstevel@tonic-gate } 1607c478bd9Sstevel@tonic-gate 1617c478bd9Sstevel@tonic-gate /* 1627c478bd9Sstevel@tonic-gate * hardware 1637c478bd9Sstevel@tonic-gate */ 1647c478bd9Sstevel@tonic-gate desp->des_len = len; 1657c478bd9Sstevel@tonic-gate if (len <= DES_QUICKLEN) { 1667c478bd9Sstevel@tonic-gate DESCOPY(buf, desp->des_data, len); 1677c478bd9Sstevel@tonic-gate res = ioctl(g_desfd, (int)DESIOCQUICK, (char *)desp); 1687c478bd9Sstevel@tonic-gate DESCOPY(desp->des_data, buf, len); 1697c478bd9Sstevel@tonic-gate } else { 170*7257d1b4Sraf desp->des_buf = (uchar_t *)buf; 1717c478bd9Sstevel@tonic-gate res = ioctl(g_desfd, (int)DESIOCBLOCK, (char *)desp); 1727c478bd9Sstevel@tonic-gate } 1737c478bd9Sstevel@tonic-gate return (res == 0 ? DESERR_NONE : DESERR_HWERROR); 1747c478bd9Sstevel@tonic-gate } 1757c478bd9Sstevel@tonic-gate software: 1767c478bd9Sstevel@tonic-gate #endif 1777c478bd9Sstevel@tonic-gate /* 1787c478bd9Sstevel@tonic-gate * software 1797c478bd9Sstevel@tonic-gate */ 1807c478bd9Sstevel@tonic-gate if (!__des_crypt(buf, len, desp)) { 1817c478bd9Sstevel@tonic-gate return (DESERR_HWERROR); 1827c478bd9Sstevel@tonic-gate } 1837c478bd9Sstevel@tonic-gate return (desdev == DES_SW ? DESERR_NONE : DESERR_NOHWDEVICE); 1847c478bd9Sstevel@tonic-gate } 1857c478bd9Sstevel@tonic-gate /* EXPORT DELETE END */ 186