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 /*
367c478bd9Sstevel@tonic-gate * DES encryption library routines
377c478bd9Sstevel@tonic-gate */
387c478bd9Sstevel@tonic-gate
397c478bd9Sstevel@tonic-gate #include <sys/types.h>
407c478bd9Sstevel@tonic-gate #include <rpc/des_crypt.h>
417c478bd9Sstevel@tonic-gate #include <sys/stat.h>
427c478bd9Sstevel@tonic-gate #include <fcntl.h>
437c478bd9Sstevel@tonic-gate #include <unistd.h>
447c478bd9Sstevel@tonic-gate #include <stropts.h>
457c478bd9Sstevel@tonic-gate #ifdef sun
467c478bd9Sstevel@tonic-gate #include <sys/ioctl.h>
477c478bd9Sstevel@tonic-gate #include <sys/des.h>
487c478bd9Sstevel@tonic-gate #ifdef _KERNEL
497c478bd9Sstevel@tonic-gate #include <sys/conf.h>
507c478bd9Sstevel@tonic-gate #define getdesfd() (cdevsw[11].d_open(0, 0) ? -1 : 0)
517c478bd9Sstevel@tonic-gate #define ioctl(a, b, c) (cdevsw[11].d_ioctl(0, b, c, 0) ? -1 : 0)
527c478bd9Sstevel@tonic-gate #ifndef CRYPT
537c478bd9Sstevel@tonic-gate #define __des_crypt(a, b, c) 0
547c478bd9Sstevel@tonic-gate #endif
557c478bd9Sstevel@tonic-gate #else
567c478bd9Sstevel@tonic-gate #define getdesfd() (open("/dev/des", 0, 0))
577c478bd9Sstevel@tonic-gate #endif
587c478bd9Sstevel@tonic-gate #else
597c478bd9Sstevel@tonic-gate #include <des/des.h>
607c478bd9Sstevel@tonic-gate #endif
617c478bd9Sstevel@tonic-gate
627c478bd9Sstevel@tonic-gate #include "des_soft.h"
637c478bd9Sstevel@tonic-gate
647c478bd9Sstevel@tonic-gate /*
657c478bd9Sstevel@tonic-gate * To see if chip is installed
667c478bd9Sstevel@tonic-gate */
677c478bd9Sstevel@tonic-gate #define UNOPENED (-2)
687c478bd9Sstevel@tonic-gate
697c478bd9Sstevel@tonic-gate /*
707c478bd9Sstevel@tonic-gate * Copy 8 bytes
717c478bd9Sstevel@tonic-gate */
727c478bd9Sstevel@tonic-gate #define COPY8(src, dst) { \
73*7257d1b4Sraf char *a = (char *)dst; \
74*7257d1b4Sraf char *b = (char *)src; \
757c478bd9Sstevel@tonic-gate *a++ = *b++; *a++ = *b++; *a++ = *b++; *a++ = *b++; \
767c478bd9Sstevel@tonic-gate *a++ = *b++; *a++ = *b++; *a++ = *b++; *a++ = *b++; \
777c478bd9Sstevel@tonic-gate }
787c478bd9Sstevel@tonic-gate
797c478bd9Sstevel@tonic-gate /*
807c478bd9Sstevel@tonic-gate * Copy multiple of 8 bytes
817c478bd9Sstevel@tonic-gate */
827c478bd9Sstevel@tonic-gate #define DESCOPY(src, dst, len) { \
83*7257d1b4Sraf char *a = (char *)dst; \
84*7257d1b4Sraf char *b = (char *)src; \
857c478bd9Sstevel@tonic-gate int i; \
86*7257d1b4Sraf for (i = (int)len; i > 0; i -= 8) { \
877c478bd9Sstevel@tonic-gate *a++ = *b++; *a++ = *b++; *a++ = *b++; *a++ = *b++; \
887c478bd9Sstevel@tonic-gate *a++ = *b++; *a++ = *b++; *a++ = *b++; *a++ = *b++; \
897c478bd9Sstevel@tonic-gate } \
907c478bd9Sstevel@tonic-gate }
917c478bd9Sstevel@tonic-gate static int common_crypt(char *, char *, unsigned, unsigned, struct desparams *);
927c478bd9Sstevel@tonic-gate
937c478bd9Sstevel@tonic-gate /*
947c478bd9Sstevel@tonic-gate * CBC mode encryption
957c478bd9Sstevel@tonic-gate */
967c478bd9Sstevel@tonic-gate int
cbc_crypt(char * key,char * buf,size_t len,unsigned int mode,char * ivec)977c478bd9Sstevel@tonic-gate cbc_crypt(char *key, char *buf, size_t len, unsigned int mode, char *ivec)
987c478bd9Sstevel@tonic-gate {
997c478bd9Sstevel@tonic-gate int err = 0;
1007c478bd9Sstevel@tonic-gate struct desparams dp;
1017c478bd9Sstevel@tonic-gate
1027c478bd9Sstevel@tonic-gate dp.des_mode = CBC;
1037c478bd9Sstevel@tonic-gate COPY8(ivec, dp.des_ivec);
1047c478bd9Sstevel@tonic-gate err = common_crypt(key, buf, len, mode, &dp);
1057c478bd9Sstevel@tonic-gate COPY8(dp.des_ivec, ivec);
1067c478bd9Sstevel@tonic-gate return (err);
1077c478bd9Sstevel@tonic-gate }
1087c478bd9Sstevel@tonic-gate
1097c478bd9Sstevel@tonic-gate
1107c478bd9Sstevel@tonic-gate /*
1117c478bd9Sstevel@tonic-gate * ECB mode encryption
1127c478bd9Sstevel@tonic-gate */
1137c478bd9Sstevel@tonic-gate int
ecb_crypt(char * key,char * buf,size_t len,unsigned int mode)1147c478bd9Sstevel@tonic-gate ecb_crypt(char *key, char *buf, size_t len, unsigned int mode)
1157c478bd9Sstevel@tonic-gate {
1167c478bd9Sstevel@tonic-gate int ret = 0;
1177c478bd9Sstevel@tonic-gate struct desparams dp;
1187c478bd9Sstevel@tonic-gate
1197c478bd9Sstevel@tonic-gate dp.des_mode = ECB;
1207c478bd9Sstevel@tonic-gate ret = common_crypt(key, buf, len, mode, &dp);
1217c478bd9Sstevel@tonic-gate return (ret);
1227c478bd9Sstevel@tonic-gate }
1237c478bd9Sstevel@tonic-gate
1247c478bd9Sstevel@tonic-gate
1257c478bd9Sstevel@tonic-gate /*
1267c478bd9Sstevel@tonic-gate * Common code to cbc_crypt() & ecb_crypt()
1277c478bd9Sstevel@tonic-gate */
1287c478bd9Sstevel@tonic-gate static int
common_crypt(char * key,char * buf,unsigned len,unsigned mode,struct desparams * desp)129*7257d1b4Sraf common_crypt(char *key, char *buf, unsigned len,
130*7257d1b4Sraf unsigned mode, struct desparams *desp)
1317c478bd9Sstevel@tonic-gate {
1327c478bd9Sstevel@tonic-gate int desdev;
1337c478bd9Sstevel@tonic-gate int res;
1347c478bd9Sstevel@tonic-gate int g_desfd = UNOPENED;
1357c478bd9Sstevel@tonic-gate
1367c478bd9Sstevel@tonic-gate if ((len % 8) != 0 || len > DES_MAXDATA) {
1377c478bd9Sstevel@tonic-gate return (DESERR_BADPARAM);
1387c478bd9Sstevel@tonic-gate }
1397c478bd9Sstevel@tonic-gate desp->des_dir =
140*7257d1b4Sraf ((mode & DES_DIRMASK) == DES_ENCRYPT) ? ENCRYPT : DECRYPT;
1417c478bd9Sstevel@tonic-gate
1427c478bd9Sstevel@tonic-gate desdev = mode & DES_DEVMASK;
1437c478bd9Sstevel@tonic-gate COPY8(key, desp->des_key);
1447c478bd9Sstevel@tonic-gate #ifdef sun
1457c478bd9Sstevel@tonic-gate if (desdev == DES_HW) {
1467c478bd9Sstevel@tonic-gate if (g_desfd < 0) {
1477c478bd9Sstevel@tonic-gate if (g_desfd == -1 || (g_desfd = getdesfd()) < 0) {
1487c478bd9Sstevel@tonic-gate goto software; /* no hardware device */
1497c478bd9Sstevel@tonic-gate }
1507c478bd9Sstevel@tonic-gate }
1517c478bd9Sstevel@tonic-gate
1527c478bd9Sstevel@tonic-gate /*
1537c478bd9Sstevel@tonic-gate * hardware
1547c478bd9Sstevel@tonic-gate */
1557c478bd9Sstevel@tonic-gate desp->des_len = len;
1567c478bd9Sstevel@tonic-gate if (len <= DES_QUICKLEN) {
1577c478bd9Sstevel@tonic-gate DESCOPY(buf, desp->des_data, len);
158*7257d1b4Sraf res = ioctl(g_desfd, (int)DESIOCQUICK, (char *)desp);
1597c478bd9Sstevel@tonic-gate DESCOPY(desp->des_data, buf, len);
1607c478bd9Sstevel@tonic-gate } else {
161*7257d1b4Sraf desp->des_buf = (uchar_t *)buf;
162*7257d1b4Sraf res = ioctl(g_desfd, (int)DESIOCBLOCK, (char *)desp);
1637c478bd9Sstevel@tonic-gate }
1647c478bd9Sstevel@tonic-gate return (res == 0 ? DESERR_NONE : DESERR_HWERROR);
1657c478bd9Sstevel@tonic-gate }
1667c478bd9Sstevel@tonic-gate software:
1677c478bd9Sstevel@tonic-gate #endif
1687c478bd9Sstevel@tonic-gate /*
1697c478bd9Sstevel@tonic-gate * software
1707c478bd9Sstevel@tonic-gate */
1717c478bd9Sstevel@tonic-gate if (!__des_crypt(buf, len, desp)) {
1727c478bd9Sstevel@tonic-gate return (DESERR_HWERROR);
1737c478bd9Sstevel@tonic-gate }
1747c478bd9Sstevel@tonic-gate return (desdev == DES_SW ? DESERR_NONE : DESERR_NOHWDEVICE);
1757c478bd9Sstevel@tonic-gate }
176