/* * md2.h * Used in ipmilan.c * * 05/26/2006 ARCress - copied from freeipmi ipmi-md2.c, * added md2_sum() subroutine, added WIN32 flag * 08/14/2008 ARCress - moved md2 routines from md2.c to md2.h */ /* * (c) (C) 2003 FreeIPMI Core Team * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of the * License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, but * is provided AS IS, WITHOUT ANY WARRANTY; without even the implied * warranty of MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, and * NON-INFRINGEMENT. See the GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, * MA 02111-1307, USA. * * In addition, as a special exception, the copyright holders give * permission to link the code of portions of this program with the * OpenSSL library under certain conditions as described in each * individual source file, and distribute linked combinations * including the two. * You must obey the GNU General Public License in all respects * for all of the code used other than OpenSSL. If you modify * file(s) with this exception, you may extend this exception to your * version of the file(s), but you are not obligated to do so. If you * do not wish to do so, delete this exception statement from your * version. If you delete this exception statement from all source * files in the program, then also delete it here. */ /* ==================================================================== * Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * 3. All advertising materials mentioning features or use of this * software must display the following acknowledgment: * "This product includes software developed by the OpenSSL Project * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" * * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to * endorse or promote products derived from this software without * prior written permission. For written permission, please contact * openssl-core@openssl.org. * * 5. Products derived from this software may not be called "OpenSSL" * nor may "OpenSSL" appear in their names without prior written * permission of the OpenSSL Project. * * 6. Redistributions of any form whatsoever must retain the following * acknowledgment: * "This product includes software developed by the OpenSSL Project * for use in the OpenSSL Toolkit (http://www.openssl.org/)" * * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED * OF THE POSSIBILITY OF SUCH DAMAGE. * ==================================================================== * * This product includes cryptographic software written by Eric Young * (eay@cryptsoft.com). This product includes software written by Tim * Hudson (tjh@cryptsoft.com). * */ /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) * All rights reserved. * * This package is an SSL implementation written * by Eric Young (eay@cryptsoft.com). * The implementation was written so as to conform with Netscapes SSL. * * This library is free for commercial and non-commercial use as long as * the following conditions are aheared to. The following conditions * apply to all code found in this distribution, be it the RC4, RSA, * lhash, DES, etc., code; not just the SSL code. The SSL documentation * included with this distribution is covered by the same copyright terms * except that the holder is Tim Hudson (tjh@cryptsoft.com). * * Copyright remains Eric Young's, and as such any Copyright notices in * the code are not to be removed. * If this package is used in a product, Eric Young should be given attribution * as the author of the parts of the library used. * This can be in the form of a textual message at program startup or * in documentation (online or textual) provided with the package. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * "This product includes cryptographic software written by * Eric Young (eay@cryptsoft.com)" * The word 'cryptographic' can be left out if the rouines from the library * being used are not cryptographic related :-). * 4. If you include any Windows specific code (or a derivative thereof) from * the apps directory (application code) you must include an acknowledgement: * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" * * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * The licence and distribution terms for any publically available version or * derivative of this code cannot be changed. i.e. this code cannot simply be * copied and put under another distribution licence * [including the GNU Public Licence.] */ /* only include this file if MD2OK was defined */ #ifdef WIN32 #define u_int32_t unsigned int #define u_int8_t unsigned char #endif /* start ipmi-md2.h */ #define IPMI_MD2_BLOCK_LEN 16 #define IPMI_MD2_BUFFER_LEN 48 #define IPMI_MD2_CHKSUM_LEN 16 #define IPMI_MD2_DIGEST_LEN 16 #define IPMI_MD2_PADDING_LEN 16 #define IPMI_MD2_ROUNDS_LEN 18 typedef struct __md2 { u_int32_t magic; u_int8_t l; unsigned int mlen; u_int8_t x[IPMI_MD2_BUFFER_LEN]; u_int8_t c[IPMI_MD2_CHKSUM_LEN]; u_int8_t m[IPMI_MD2_BLOCK_LEN]; } ipmi_md2_t; int ipmi_md2_init(ipmi_md2_t *ctx); int ipmi_md2_update_data(ipmi_md2_t *ctx, u_int8_t *buf, unsigned int buflen); int ipmi_md2_finish(ipmi_md2_t *ctx, u_int8_t *digest, unsigned int digestlen); /* end ipmi-md2.h */ static char padding[16][16] = { {0x01}, {0x02,0x02}, {0x03,0x03,0x03}, {0x04,0x04,0x04,0x04}, {0x05,0x05,0x05,0x05,0x05}, {0x06,0x06,0x06,0x06,0x06,0x06}, {0x07,0x07,0x07,0x07,0x07,0x07,0x07}, {0x08,0x08,0x08,0x08,0x08,0x08,0x08,0x08}, {0x09,0x09,0x09,0x09,0x09,0x09,0x09,0x09,0x09}, {0x0A,0x0A,0x0A,0x0A,0x0A,0x0A,0x0A,0x0A,0x0A,0x0A}, {0x0B,0x0B,0x0B,0x0B,0x0B,0x0B,0x0B,0x0B,0x0B,0x0B,0x0B}, {0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C,0x0C}, {0x0D,0x0D,0x0D,0x0D,0x0D,0x0D,0x0D,0x0D,0x0D,0x0D,0x0D,0x0D,0x0D}, {0x0E,0x0E,0x0E,0x0E,0x0E,0x0E,0x0E,0x0E,0x0E,0x0E,0x0E,0x0E,0x0E,0x0E}, {0x0F,0x0F,0x0F,0x0F,0x0F,0x0F,0x0F,0x0F,0x0F,0x0F,0x0F,0x0F,0x0F,0x0F,0x0F}, {0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10,0x10} }; static unsigned char S[256] = { 0x29, 0x2E, 0x43, 0xC9, 0xA2, 0xD8, 0x7C, 0x01, 0x3D, 0x36, 0x54, 0xA1, 0xEC, 0xF0, 0x06, 0x13, 0x62, 0xA7, 0x05, 0xF3, 0xC0, 0xC7, 0x73, 0x8C, 0x98, 0x93, 0x2B, 0xD9, 0xBC, 0x4C, 0x82, 0xCA, 0x1E, 0x9B, 0x57, 0x3C, 0xFD, 0xD4, 0xE0, 0x16, 0x67, 0x42, 0x6F, 0x18, 0x8A, 0x17, 0xE5, 0x12, 0xBE, 0x4E, 0xC4, 0xD6, 0xDA, 0x9E, 0xDE, 0x49, 0xA0, 0xFB, 0xF5, 0x8E, 0xBB, 0x2F, 0xEE, 0x7A, 0xA9, 0x68, 0x79, 0x91, 0x15, 0xB2, 0x07, 0x3F, 0x94, 0xC2, 0x10, 0x89, 0x0B, 0x22, 0x5F, 0x21, 0x80, 0x7F, 0x5D, 0x9A, 0x5A, 0x90, 0x32, 0x27, 0x35, 0x3E, 0xCC, 0xE7, 0xBF, 0xF7, 0x97, 0x03, 0xFF, 0x19, 0x30, 0xB3, 0x48, 0xA5, 0xB5, 0xD1, 0xD7, 0x5E, 0x92, 0x2A, 0xAC, 0x56, 0xAA, 0xC6, 0x4F, 0xB8, 0x38, 0xD2, 0x96, 0xA4, 0x7D, 0xB6, 0x76, 0xFC, 0x6B, 0xE2, 0x9C, 0x74, 0x04, 0xF1, 0x45, 0x9D, 0x70, 0x59, 0x64, 0x71, 0x87, 0x20, 0x86, 0x5B, 0xCF, 0x65, 0xE6, 0x2D, 0xA8, 0x02, 0x1B, 0x60, 0x25, 0xAD, 0xAE, 0xB0, 0xB9, 0xF6, 0x1C, 0x46, 0x61, 0x69, 0x34, 0x40, 0x7E, 0x0F, 0x55, 0x47, 0xA3, 0x23, 0xDD, 0x51, 0xAF, 0x3A, 0xC3, 0x5C, 0xF9, 0xCE, 0xBA, 0xC5, 0xEA, 0x26, 0x2C, 0x53, 0x0D, 0x6E, 0x85, 0x28, 0x84, 0x09, 0xD3, 0xDF, 0xCD, 0xF4, 0x41, 0x81, 0x4D, 0x52, 0x6A, 0xDC, 0x37, 0xC8, 0x6C, 0xC1, 0xAB, 0xFA, 0x24, 0xE1, 0x7B, 0x08, 0x0C, 0xBD, 0xB1, 0x4A, 0x78, 0x88, 0x95, 0x8B, 0xE3, 0x63, 0xE8, 0x6D, 0xE9, 0xCB, 0xD5, 0xFE, 0x3B, 0x00, 0x1D, 0x39, 0xF2, 0xEF, 0xB7, 0x0E, 0x66, 0x58, 0xD0, 0xE4, 0xA6, 0x77, 0x72, 0xF8, 0xEB, 0x75, 0x4B, 0x0A, 0x31, 0x44, 0x50, 0xB4, 0x8F, 0xED, 0x1F, 0x1A, 0xDB, 0x99, 0x8D, 0x33, 0x9F, 0x11, 0x83, 0x14 }; #define L ctx->l #define X ctx->x #define C ctx->c #define M ctx->m #define Mlen ctx->mlen #define IPMI_MD2_MAGIC 0xf00fd00d int ipmi_md2_init(ipmi_md2_t *ctx) { if (ctx == NULL) { errno = EINVAL; return -1; } ctx->magic = IPMI_MD2_MAGIC; L = 0; Mlen = 0; memset(X, '\0', IPMI_MD2_BUFFER_LEN); memset(C, '\0', IPMI_MD2_CHKSUM_LEN); memset(M, '\0', IPMI_MD2_BLOCK_LEN); return 0; } static void _ipmi_md2_update_digest_and_checksum(ipmi_md2_t *ctx) { int j, k; u_int8_t c, t; /* Update X */ for (j = 0; j < IPMI_MD2_BLOCK_LEN; j++) { X[16+j] = M[j]; X[32+j] = (X[16+j] ^ X[j]); } t = 0; for (j = 0; j < IPMI_MD2_ROUNDS_LEN; j++) { for (k = 0; k < IPMI_MD2_BUFFER_LEN; k++) { t = X[k] = (X[k] ^ S[t]); } t = (t + j) % 256; } /* Update C and L */ /* achu: Note that there is a typo in the RFC 1319 specification. * In section 3.2, the line: * * Set C[j] to S[c xor L] * * should read: * * Set C[j] to C[j] xor S[c xor L]. */ for (j = 0; j < IPMI_MD2_BLOCK_LEN; j++) { c = M[j]; C[j] = C[j] ^ S[c ^ L]; L = C[j]; } } int ipmi_md2_update_data(ipmi_md2_t *ctx, u_int8_t *buf, unsigned int buflen) { if (ctx == NULL || ctx->magic != IPMI_MD2_MAGIC || buf == NULL) { errno = EINVAL; return -1; } if (buflen == 0) return 0; if ((Mlen + buflen) >= IPMI_MD2_BLOCK_LEN) { unsigned int bufcount; bufcount = (IPMI_MD2_BLOCK_LEN - Mlen); memcpy(M + Mlen, buf, bufcount); _ipmi_md2_update_digest_and_checksum(ctx); while ((buflen - bufcount) >= IPMI_MD2_BLOCK_LEN) { memcpy(M, buf + bufcount, IPMI_MD2_BLOCK_LEN); bufcount += IPMI_MD2_BLOCK_LEN; _ipmi_md2_update_digest_and_checksum(ctx); } Mlen = buflen - bufcount; if (Mlen > 0) memcpy(M, buf + bufcount, Mlen); } else { /* Not enough data to update X and C, just copy in data */ memcpy(M + Mlen, buf, buflen); Mlen += buflen; } return buflen; } static void _ipmi_md2_append_padding_and_checksum(ipmi_md2_t *ctx) { unsigned int padlen; int padindex; padlen = IPMI_MD2_PADDING_LEN - Mlen; padindex = padlen - 1; ipmi_md2_update_data(ctx, padding[padindex], padlen); ipmi_md2_update_data(ctx, C, IPMI_MD2_CHKSUM_LEN); } int ipmi_md2_finish(ipmi_md2_t *ctx, u_int8_t *digest, unsigned int digestlen) { if (ctx == NULL || ctx->magic != IPMI_MD2_MAGIC || digest == NULL || digestlen < IPMI_MD2_DIGEST_LEN) { errno = EINVAL; return -1; } _ipmi_md2_append_padding_and_checksum(ctx); memcpy(digest, X, IPMI_MD2_DIGEST_LEN); return IPMI_MD2_DIGEST_LEN; } /* added - ARCress */ void md2_sum(unsigned char *pdata, int sdata, unsigned char *digest) { ipmi_md2_t ctx; ipmi_md2_init(&ctx); ipmi_md2_update_data(&ctx, pdata, sdata); ipmi_md2_finish(&ctx, digest, 16); } /*end md2.h */