OpenSolaris Launch

1 files changed, 422 insertions, 0 deletions

diff --git a/usr/src/lib/libcrypt/common/des_crypt.c b/usr/src/lib/libcrypt/common/des_crypt.c
new file mode 100644
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+++ b/usr/src/lib/libcrypt/common/des_crypt.c
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+/*
+ * CDDL HEADER START
+ *
+ * The contents of this file are subject to the terms of the
+ * Common Development and Distribution License, Version 1.0 only
+ * (the "License").  You may not use this file except in compliance
+ * with the License.
+ *
+ * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+ * or http://www.opensolaris.org/os/licensing.
+ * See the License for the specific language governing permissions
+ * and limitations under the License.
+ *
+ * When distributing Covered Code, include this CDDL HEADER in each
+ * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+ * If applicable, add the following below this CDDL HEADER, with the
+ * fields enclosed by brackets "[]" replaced with your own identifying
+ * information: Portions Copyright [yyyy] [name of copyright owner]
+ *
+ * CDDL HEADER END
+ */
+/*	Copyright (c) 1988 AT&T	*/
+/*	  All Rights Reserved  	*/
+
+
+/*
+ * Copyright 2005 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+/*LINTLIBRARY*/
+
+#pragma weak des_crypt = _des_crypt
+#pragma weak des_encrypt = _des_encrypt
+#pragma weak des_setkey = _des_setkey
+
+#include "synonyms.h"
+#include "mtlib.h"
+#include <sys/types.h>
+#include <crypt.h>
+#include "des_soft.h"
+
+#include <stdlib.h>
+#include <thread.h>
+#include <synch.h>
+#include <sys/types.h>
+
+/* EXPORT DELETE START */
+/*
+ * This program implements the
+ * Proposed Federal Information Processing
+ *  Data Encryption Standard.
+ * See Federal Register, March 17, 1975 (40FR12134)
+ */
+
+/*
+ * Initial permutation,
+ */
+static char IP[] = {
+	58, 50, 42, 34, 26, 18, 10, 2,
+	60, 52, 44, 36, 28, 20, 12, 4,
+	62, 54, 46, 38, 30, 22, 14, 6,
+	64, 56, 48, 40, 32, 24, 16, 8,
+	57, 49, 41, 33, 25, 17, 9, 1,
+	59, 51, 43, 35, 27, 19, 11, 3,
+	61, 53, 45, 37, 29, 21, 13, 5,
+	63, 55, 47, 39, 31, 23, 15, 7,
+};
+
+/*
+ * Final permutation, FP = IP^(-1)
+ */
+static char FP[] = {
+	40, 8, 48, 16, 56, 24, 64, 32,
+	39, 7, 47, 15, 55, 23, 63, 31,
+	38, 6, 46, 14, 54, 22, 62, 30,
+	37, 5, 45, 13, 53, 21, 61, 29,
+	36, 4, 44, 12, 52, 20, 60, 28,
+	35, 3, 43, 11, 51, 19, 59, 27,
+	34, 2, 42, 10, 50, 18, 58, 26,
+	33, 1, 41, 9, 49, 17, 57, 25,
+};
+
+/*
+ * Permuted-choice 1 from the key bits
+ * to yield C and D.
+ * Note that bits 8, 16... are left out:
+ * They are intended for a parity check.
+ */
+static char PC1_C[] = {
+	57, 49, 41, 33, 25, 17, 9,
+	1, 58, 50, 42, 34, 26, 18,
+	10, 2, 59, 51, 43, 35, 27,
+	19, 11, 3, 60, 52, 44, 36,
+};
+
+static char PC1_D[] = {
+	63, 55, 47, 39, 31, 23, 15,
+	7, 62, 54, 46, 38, 30, 22,
+	14, 6, 61, 53, 45, 37, 29,
+	21, 13, 5, 28, 20, 12, 4,
+};
+
+/*
+ * Sequence of shifts used for the key schedule.
+ */
+static char shifts[] = {1, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1, };
+
+/*
+ * Permuted-choice 2, to pick out the bits from
+ * the CD array that generate the key schedule.
+ */
+static char PC2_C[] = {
+	14, 17, 11, 24, 1, 5,
+	3, 28, 15, 6, 21, 10,
+	23, 19, 12, 4, 26, 8,
+	16, 7, 27, 20, 13, 2,
+};
+
+static char PC2_D[] = {
+	41, 52, 31, 37, 47, 55,
+	30, 40, 51, 45, 33, 48,
+	44, 49, 39, 56, 34, 53,
+	46, 42, 50, 36, 29, 32,
+};
+
+/*
+ * The C and D arrays used to calculate the key schedule.
+ */
+
+static char C[28];
+static char D[28];
+/*
+ * The key schedule.
+ * Generated from the key.
+ */
+static char KS[16][48];
+
+/*
+ * The E bit-selection table.
+ */
+static char E[48];
+static char e2[] = {
+	32, 1, 2, 3, 4, 5,
+	4, 5, 6, 7, 8, 9,
+	8, 9, 10, 11, 12, 13,
+	12, 13, 14, 15, 16, 17,
+	16, 17, 18, 19, 20, 21,
+	20, 21, 22, 23, 24, 25,
+	24, 25, 26, 27, 28, 29,
+	28, 29, 30, 31, 32, 1,
+};
+
+/*
+ * Set up the key schedule from the key.
+ */
+
+static mutex_t lock = DEFAULTMUTEX;
+
+/* EXPORT DELETE END */
+
+
+static void
+des_setkey_nolock(const char *key)
+{
+/* EXPORT DELETE START */
+	int i, j, k;
+	char t;
+
+	/*
+	 * First, generate C and D by permuting
+	 * the key.  The low order bit of each
+	 * 8-bit char is not used, so C and D are only 28
+	 * bits apiece.
+	 */
+	for (i = 0; i < 28; i++) {
+		C[i] = key[PC1_C[i]-1];
+		D[i] = key[PC1_D[i]-1];
+	}
+	/*
+	 * To generate Ki, rotate C and D according
+	 * to schedule and pick up a permutation
+	 * using PC2.
+	 */
+	for (i = 0; i < 16; i++) {
+		/*
+		 * rotate.
+		 */
+		for (k = 0; k < shifts[i]; k++) {
+			t = C[0];
+			for (j = 0; j < 28-1; j++)
+				C[j] = C[j+1];
+			C[27] = (char)t;
+			t = D[0];
+			for (j = 0; j < 28-1; j++)
+				D[j] = D[j+1];
+			D[27] = (char)t;
+		}
+		/*
+		 * get Ki. Note C and D are concatenated.
+		 */
+		for (j = 0; j < 24; j++) {
+			KS[i][j] = C[PC2_C[j]-1];
+			KS[i][j+24] = D[PC2_D[j]-28-1];
+		}
+	}
+
+	for (i = 0; i < 48; i++)
+		E[i] = e2[i];
+/* EXPORT DELETE END */
+}
+
+void
+des_setkey(const char *key)
+{
+/* EXPORT DELETE START */
+	(void) mutex_lock(&lock);
+	des_setkey_nolock(key);
+	(void) mutex_unlock(&lock);
+/* EXPORT DELETE END */
+}
+
+/* EXPORT DELETE START */
+/*
+ * The 8 selection functions.
+ * For some reason, they give a 0-origin
+ * index, unlike everything else.
+ */
+static char S[8][64] = {
+	14, 4, 13, 1, 2, 15, 11, 8, 3, 10, 6, 12, 5, 9, 0, 7,
+	0, 15, 7, 4, 14, 2, 13, 1, 10, 6, 12, 11, 9, 5, 3, 8,
+	4, 1, 14, 8, 13, 6, 2, 11, 15, 12, 9, 7, 3, 10, 5, 0,
+	15, 12, 8, 2, 4, 9, 1, 7, 5, 11, 3, 14, 10, 0, 6, 13,
+
+	15, 1, 8, 14, 6, 11, 3, 4, 9, 7, 2, 13, 12, 0, 5, 10,
+	3, 13, 4, 7, 15, 2, 8, 14, 12, 0, 1, 10, 6, 9, 11, 5,
+	0, 14, 7, 11, 10, 4, 13, 1, 5, 8, 12, 6, 9, 3, 2, 15,
+	13, 8, 10, 1, 3, 15, 4, 2, 11, 6, 7, 12, 0, 5, 14, 9,
+
+	10, 0, 9, 14, 6, 3, 15, 5, 1, 13, 12, 7, 11, 4, 2, 8,
+	13, 7, 0, 9, 3, 4, 6, 10, 2, 8, 5, 14, 12, 11, 15, 1,
+	13, 6, 4, 9, 8, 15, 3, 0, 11, 1, 2, 12, 5, 10, 14, 7,
+	1, 10, 13, 0, 6, 9, 8, 7, 4, 15, 14, 3, 11, 5, 2, 12,
+
+	7, 13, 14, 3, 0, 6, 9, 10, 1, 2, 8, 5, 11, 12, 4, 15,
+	13, 8, 11, 5, 6, 15, 0, 3, 4, 7, 2, 12, 1, 10, 14, 9,
+	10, 6, 9, 0, 12, 11, 7, 13, 15, 1, 3, 14, 5, 2, 8, 4,
+	3, 15, 0, 6, 10, 1, 13, 8, 9, 4, 5, 11, 12, 7, 2, 14,
+
+	2, 12, 4, 1, 7, 10, 11, 6, 8, 5, 3, 15, 13, 0, 14, 9,
+	14, 11, 2, 12, 4, 7, 13, 1, 5, 0, 15, 10, 3, 9, 8, 6,
+	4, 2, 1, 11, 10, 13, 7, 8, 15, 9, 12, 5, 6, 3, 0, 14,
+	11, 8, 12, 7, 1, 14, 2, 13, 6, 15, 0, 9, 10, 4, 5, 3,
+
+	12, 1, 10, 15, 9, 2, 6, 8, 0, 13, 3, 4, 14, 7, 5, 11,
+	10, 15, 4, 2, 7, 12, 9, 5, 6, 1, 13, 14, 0, 11, 3, 8,
+	9, 14, 15, 5, 2, 8, 12, 3, 7, 0, 4, 10, 1, 13, 11, 6,
+	4, 3, 2, 12, 9, 5, 15, 10, 11, 14, 1, 7, 6, 0, 8, 13,
+
+	4, 11, 2, 14, 15, 0, 8, 13, 3, 12, 9, 7, 5, 10, 6, 1,
+	13, 0, 11, 7, 4, 9, 1, 10, 14, 3, 5, 12, 2, 15, 8, 6,
+	1, 4, 11, 13, 12, 3, 7, 14, 10, 15, 6, 8, 0, 5, 9, 2,
+	6, 11, 13, 8, 1, 4, 10, 7, 9, 5, 0, 15, 14, 2, 3, 12,
+
+	13, 2, 8, 4, 6, 15, 11, 1, 10, 9, 3, 14, 5, 0, 12, 7,
+	1, 15, 13, 8, 10, 3, 7, 4, 12, 5, 6, 11, 0, 14, 9, 2,
+	7, 11, 4, 1, 9, 12, 14, 2, 0, 6, 10, 13, 15, 3, 5, 8,
+	2, 1, 14, 7, 4, 10, 8, 13, 15, 12, 9, 0, 3, 5, 6, 11,
+};
+
+/*
+ * P is a permutation on the selected combination
+ * of the current L and key.
+ */
+static char P[] = {
+	16, 7, 20, 21,
+	29, 12, 28, 17,
+	1, 15, 23, 26,
+	5, 18, 31, 10,
+	2, 8, 24, 14,
+	32, 27, 3, 9,
+	19, 13, 30, 6,
+	22, 11, 4, 25,
+};
+
+/*
+ * The current block, divided into 2 halves.
+ */
+static char L[64];
+static char tempL[32];
+static char f[32];
+
+/*
+ * The combination of the key and the input, before selection.
+ */
+static char preS[48];
+
+/*
+ * The payoff: encrypt a block.
+ */
+/* EXPORT DELETE END */
+
+static void
+des_encrypt_nolock(char *block, int edflag)
+{
+/* EXPORT DELETE START */
+
+	if (edflag)
+		(void) des_decrypt1(block, L, IP, &L[32],
+		    preS, E, KS, S, f, tempL, P, FP);
+	else
+		(void) des_encrypt1(block, L, IP, &L[32],
+		    preS, E, KS, S, f, tempL, P, FP);
+
+/* EXPORT DELETE END */
+}
+
+void
+des_encrypt(char *block, int edflag)
+{
+/* EXPORT DELETE START */
+	(void) mutex_lock(&lock);
+	des_encrypt_nolock(block, edflag);
+	(void) mutex_unlock(&lock);
+/* EXPORT DELETE END */
+}
+
+
+
+#define	IOBUF_SIZE	16
+
+static char *
+_get_iobuf(thread_key_t *key, unsigned size)
+{
+	char *iobuf = NULL;
+
+	if (thr_getspecific(*key, (void **)&iobuf) != 0) {
+		if (_thr_keycreate(key, free) != 0) {
+			return (NULL);
+		}
+	}
+
+	if (!iobuf) {
+		if (_thr_setspecific(*key, (void *)(iobuf = malloc(size)))
+			!= 0) {
+			if (iobuf)
+				(void) free(iobuf);
+			return (NULL);
+		}
+	}
+	return (iobuf);
+}
+
+char *
+des_crypt(const char *pw, const char *salt)
+{
+/* EXPORT DELETE START */
+	int	i, j;
+	char	c, temp;
+	static thread_key_t key = 0;
+	char block[66], *iobuf = _get_iobuf(&key, IOBUF_SIZE);
+
+	(void) mutex_lock(&lock);
+	for (i = 0; i < 66; i++)
+		block[i] = 0;
+	for (i = 0; (c = *pw) && (i < 64); pw++) {
+		for (j = 0; j < 7; j++, i++)
+			block[i] = (c>>(6-j)) & 01;
+		i++;
+	}
+
+	des_setkey_nolock(block);
+
+	for (i = 0; i < 66; i++)
+		block[i] = 0;
+
+	for (i = 0; i < 2; i++) {
+		c = *salt++;
+		iobuf[i] = (char)c;
+		if (c > 'Z')
+			c -= 6;
+		if (c > '9')
+			c -= 7;
+		c -= '.';
+		for (j = 0; j < 6; j++) {
+			if ((c>>j) & 01) {
+				temp = E[6*i+j];
+				E[6*i+j] = E[6*i+j+24];
+				E[6*i+j+24] = (char)temp;
+			}
+		}
+	}
+
+	for (i = 0; i < 25; i++)
+		(void) des_encrypt_nolock(block, 0);
+
+	for (i = 0; i < 11; i++) {
+		c = 0;
+		for (j = 0; j < 6; j++) {
+			c <<= 1;
+			c |= block[6*i+j];
+		}
+		c += '.';
+		if (c > '9')
+			c += 7;
+		if (c > 'Z')
+			c += 6;
+		iobuf[i+2] = (char)c;
+	}
+	iobuf[i+2] = 0;
+	if (iobuf[1] == 0)
+		iobuf[1] = iobuf[0];
+	(void) mutex_unlock(&lock);
+	return (iobuf);
+#if 0
+/* EXPORT DELETE END */
+	return (0);
+/* EXPORT DELETE START */
+#endif
+/* EXPORT DELETE END */
+}