Bonjour - First step: AutoIP compiled in and working

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Darran Shepherd / Mbed 2 deprecated Bonjour

First step: AutoIP compiled in and working

lwip/netif/ppp/chpms.c@1:4218cacaf696, 2010-06-18 (annotated)

Committer:: darran
Date:: Fri Jun 18 15:54:21 2010 +0000
Revision:: 1:4218cacaf696
Parent:: 0:55a05330f8cc

Who changed what in which revision?

User	Revision	Line number	New contents of line
darran	0:55a05330f8cc	1	/* WARNING - THIS CODE HAS NOT BEEN FINISHED! */
darran	0:55a05330f8cc	2	/*** The original PPPD code is written in a way to require either the UNIX DES
darran	0:55a05330f8cc	3	encryption functions encrypt(3) and setkey(3) or the DES library libdes.
darran	0:55a05330f8cc	4	Since both is not included in lwIP, MSCHAP currently does not work! */
darran	0:55a05330f8cc	5	/*****************************************************************************
darran	0:55a05330f8cc	6	* chpms.c - Network MicroSoft Challenge Handshake Authentication Protocol program file.
darran	0:55a05330f8cc	7	*
darran	0:55a05330f8cc	8	* Copyright (c) 2003 by Marc Boucher, Services Informatiques (MBSI) inc.
darran	0:55a05330f8cc	9	* Copyright (c) 1997 by Global Election Systems Inc. All rights reserved.
darran	0:55a05330f8cc	10	*
darran	0:55a05330f8cc	11	* The authors hereby grant permission to use, copy, modify, distribute,
darran	0:55a05330f8cc	12	* and license this software and its documentation for any purpose, provided
darran	0:55a05330f8cc	13	* that existing copyright notices are retained in all copies and that this
darran	0:55a05330f8cc	14	* notice and the following disclaimer are included verbatim in any
darran	0:55a05330f8cc	15	* distributions. No written agreement, license, or royalty fee is required
darran	0:55a05330f8cc	16	* for any of the authorized uses.
darran	0:55a05330f8cc	17	*
darran	0:55a05330f8cc	18	* THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS AS IS AND ANY EXPRESS OR
darran	0:55a05330f8cc	19	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
darran	0:55a05330f8cc	20	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
darran	0:55a05330f8cc	21	* IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
darran	0:55a05330f8cc	22	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
darran	0:55a05330f8cc	23	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
darran	0:55a05330f8cc	24	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
darran	0:55a05330f8cc	25	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
darran	0:55a05330f8cc	26	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
darran	0:55a05330f8cc	27	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
darran	0:55a05330f8cc	28	*
darran	0:55a05330f8cc	29	******************************************************************************
darran	0:55a05330f8cc	30	* REVISION HISTORY
darran	0:55a05330f8cc	31	*
darran	0:55a05330f8cc	32	* 03-01-01 Marc Boucher <marc@mbsi.ca>
darran	0:55a05330f8cc	33	* Ported to lwIP.
darran	0:55a05330f8cc	34	* 97-12-08 Guy Lancaster <lancasterg@acm.org>, Global Election Systems Inc.
darran	0:55a05330f8cc	35	* Original based on BSD chap_ms.c.
darran	0:55a05330f8cc	36	*****************************************************************************/
darran	0:55a05330f8cc	37	/*
darran	0:55a05330f8cc	38	* chap_ms.c - Microsoft MS-CHAP compatible implementation.
darran	0:55a05330f8cc	39	*
darran	0:55a05330f8cc	40	* Copyright (c) 1995 Eric Rosenquist, Strata Software Limited.
darran	0:55a05330f8cc	41	* http://www.strataware.com/
darran	0:55a05330f8cc	42	*
darran	0:55a05330f8cc	43	* All rights reserved.
darran	0:55a05330f8cc	44	*
darran	0:55a05330f8cc	45	* Redistribution and use in source and binary forms are permitted
darran	0:55a05330f8cc	46	* provided that the above copyright notice and this paragraph are
darran	0:55a05330f8cc	47	* duplicated in all such forms and that any documentation,
darran	0:55a05330f8cc	48	* advertising materials, and other materials related to such
darran	0:55a05330f8cc	49	* distribution and use acknowledge that the software was developed
darran	0:55a05330f8cc	50	* by Eric Rosenquist. The name of the author may not be used to
darran	0:55a05330f8cc	51	* endorse or promote products derived from this software without
darran	0:55a05330f8cc	52	* specific prior written permission.
darran	0:55a05330f8cc	53	*
darran	0:55a05330f8cc	54	* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
darran	0:55a05330f8cc	55	* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
darran	0:55a05330f8cc	56	* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
darran	0:55a05330f8cc	57	*/
darran	0:55a05330f8cc	58
darran	0:55a05330f8cc	59	/*
darran	0:55a05330f8cc	60	* Modifications by Lauri Pesonen / lpesonen@clinet.fi, april 1997
darran	0:55a05330f8cc	61	*
darran	0:55a05330f8cc	62	* Implemented LANManager type password response to MS-CHAP challenges.
darran	0:55a05330f8cc	63	* Now pppd provides both NT style and LANMan style blocks, and the
darran	0:55a05330f8cc	64	* prefered is set by option "ms-lanman". Default is to use NT.
darran	0:55a05330f8cc	65	* The hash text (StdText) was taken from Win95 RASAPI32.DLL.
darran	0:55a05330f8cc	66	*
darran	0:55a05330f8cc	67	* You should also use DOMAIN\\USERNAME as described in README.MSCHAP80
darran	0:55a05330f8cc	68	*/
darran	0:55a05330f8cc	69
darran	0:55a05330f8cc	70	#define USE_CRYPT
darran	0:55a05330f8cc	71
darran	0:55a05330f8cc	72	#include "lwip/opt.h"
darran	0:55a05330f8cc	73
darran	0:55a05330f8cc	74	#if PPP_SUPPORT /* don't build if not configured for use in lwipopts.h */
darran	0:55a05330f8cc	75
darran	0:55a05330f8cc	76	#if MSCHAP_SUPPORT /* don't build if not configured for use in lwipopts.h */
darran	0:55a05330f8cc	77
darran	0:55a05330f8cc	78	#include "ppp.h"
darran	0:55a05330f8cc	79	#include "pppdebug.h"
darran	0:55a05330f8cc	80
darran	0:55a05330f8cc	81	#include "md4.h"
darran	0:55a05330f8cc	82	#ifndef USE_CRYPT
darran	0:55a05330f8cc	83	#include "des.h"
darran	0:55a05330f8cc	84	#endif
darran	0:55a05330f8cc	85	#include "chap.h"
darran	0:55a05330f8cc	86	#include "chpms.h"
darran	0:55a05330f8cc	87
darran	0:55a05330f8cc	88	#include <string.h>
darran	0:55a05330f8cc	89
darran	0:55a05330f8cc	90
darran	0:55a05330f8cc	91	/*************************/
darran	0:55a05330f8cc	92	/* LOCAL DEFINITIONS */
darran	0:55a05330f8cc	93	/*************************/
darran	0:55a05330f8cc	94
darran	0:55a05330f8cc	95
darran	0:55a05330f8cc	96	/************************/
darran	0:55a05330f8cc	97	/* LOCAL DATA TYPES */
darran	0:55a05330f8cc	98	/************************/
darran	0:55a05330f8cc	99	typedef struct {
darran	0:55a05330f8cc	100	u_char LANManResp[24];
darran	0:55a05330f8cc	101	u_char NTResp[24];
darran	0:55a05330f8cc	102	u_char UseNT; /* If 1, ignore the LANMan response field */
darran	0:55a05330f8cc	103	} MS_ChapResponse;
darran	0:55a05330f8cc	104	/* We use MS_CHAP_RESPONSE_LEN, rather than sizeof(MS_ChapResponse),
darran	0:55a05330f8cc	105	in case this struct gets padded. */
darran	0:55a05330f8cc	106
darran	0:55a05330f8cc	107
darran	0:55a05330f8cc	108
darran	0:55a05330f8cc	109	/***********************************/
darran	0:55a05330f8cc	110	/* LOCAL FUNCTION DECLARATIONS */
darran	0:55a05330f8cc	111	/***********************************/
darran	0:55a05330f8cc	112
darran	0:55a05330f8cc	113	/* XXX Don't know what to do with these. */
darran	0:55a05330f8cc	114	extern void setkey(const char *);
darran	0:55a05330f8cc	115	extern void encrypt(char *, int);
darran	0:55a05330f8cc	116
darran	0:55a05330f8cc	117	static void DesEncrypt (u_char , u_char , u_char *);
darran	0:55a05330f8cc	118	static void MakeKey (u_char , u_char );
darran	0:55a05330f8cc	119
darran	0:55a05330f8cc	120	#ifdef USE_CRYPT
darran	0:55a05330f8cc	121	static void Expand (u_char , u_char );
darran	0:55a05330f8cc	122	static void Collapse (u_char , u_char );
darran	0:55a05330f8cc	123	#endif
darran	0:55a05330f8cc	124
darran	0:55a05330f8cc	125	static void ChallengeResponse(
darran	0:55a05330f8cc	126	u_char challenge, / IN 8 octets */
darran	0:55a05330f8cc	127	u_char pwHash, / IN 16 octets */
darran	0:55a05330f8cc	128	u_char response / OUT 24 octets */
darran	0:55a05330f8cc	129	);
darran	0:55a05330f8cc	130	static void ChapMS_NT(
darran	0:55a05330f8cc	131	char *rchallenge,
darran	0:55a05330f8cc	132	int rchallenge_len,
darran	0:55a05330f8cc	133	char *secret,
darran	0:55a05330f8cc	134	int secret_len,
darran	0:55a05330f8cc	135	MS_ChapResponse *response
darran	0:55a05330f8cc	136	);
darran	0:55a05330f8cc	137	static u_char Get7Bits(
darran	0:55a05330f8cc	138	u_char *input,
darran	0:55a05330f8cc	139	int startBit
darran	0:55a05330f8cc	140	);
darran	0:55a05330f8cc	141
darran	0:55a05330f8cc	142	static void
darran	0:55a05330f8cc	143	ChallengeResponse( u_char challenge, / IN 8 octets */
darran	0:55a05330f8cc	144	u_char pwHash, / IN 16 octets */
darran	0:55a05330f8cc	145	u_char response / OUT 24 octets */)
darran	0:55a05330f8cc	146	{
darran	0:55a05330f8cc	147	u_char ZPasswordHash[21];
darran	0:55a05330f8cc	148
darran	0:55a05330f8cc	149	BZERO(ZPasswordHash, sizeof(ZPasswordHash));
darran	0:55a05330f8cc	150	BCOPY(pwHash, ZPasswordHash, 16);
darran	0:55a05330f8cc	151
darran	0:55a05330f8cc	152	#if 0
darran	0:55a05330f8cc	153	log_packet(ZPasswordHash, sizeof(ZPasswordHash), "ChallengeResponse - ZPasswordHash", LOG_DEBUG);
darran	0:55a05330f8cc	154	#endif
darran	0:55a05330f8cc	155
darran	0:55a05330f8cc	156	DesEncrypt(challenge, ZPasswordHash + 0, response + 0);
darran	0:55a05330f8cc	157	DesEncrypt(challenge, ZPasswordHash + 7, response + 8);
darran	0:55a05330f8cc	158	DesEncrypt(challenge, ZPasswordHash + 14, response + 16);
darran	0:55a05330f8cc	159
darran	0:55a05330f8cc	160	#if 0
darran	0:55a05330f8cc	161	log_packet(response, 24, "ChallengeResponse - response", LOG_DEBUG);
darran	0:55a05330f8cc	162	#endif
darran	0:55a05330f8cc	163	}
darran	0:55a05330f8cc	164
darran	0:55a05330f8cc	165
darran	0:55a05330f8cc	166	#ifdef USE_CRYPT
darran	0:55a05330f8cc	167	static void
darran	0:55a05330f8cc	168	DesEncrypt( u_char clear, / IN 8 octets */
darran	0:55a05330f8cc	169	u_char key, / IN 7 octets */
darran	0:55a05330f8cc	170	u_char cipher / OUT 8 octets */)
darran	0:55a05330f8cc	171	{
darran	0:55a05330f8cc	172	u_char des_key[8];
darran	0:55a05330f8cc	173	u_char crypt_key[66];
darran	0:55a05330f8cc	174	u_char des_input[66];
darran	0:55a05330f8cc	175
darran	0:55a05330f8cc	176	MakeKey(key, des_key);
darran	0:55a05330f8cc	177
darran	0:55a05330f8cc	178	Expand(des_key, crypt_key);
darran	0:55a05330f8cc	179	setkey((char*)crypt_key);
darran	0:55a05330f8cc	180
darran	0:55a05330f8cc	181	#if 0
darran	0:55a05330f8cc	182	CHAPDEBUG(LOG_INFO, ("DesEncrypt: 8 octet input : %02X%02X%02X%02X%02X%02X%02X%02X\n",
darran	0:55a05330f8cc	183	clear[0], clear[1], clear[2], clear[3], clear[4], clear[5], clear[6], clear[7]));
darran	0:55a05330f8cc	184	#endif
darran	0:55a05330f8cc	185
darran	0:55a05330f8cc	186	Expand(clear, des_input);
darran	0:55a05330f8cc	187	encrypt((char*)des_input, 0);
darran	0:55a05330f8cc	188	Collapse(des_input, cipher);
darran	0:55a05330f8cc	189
darran	0:55a05330f8cc	190	#if 0
darran	0:55a05330f8cc	191	CHAPDEBUG(LOG_INFO, ("DesEncrypt: 8 octet output: %02X%02X%02X%02X%02X%02X%02X%02X\n",
darran	0:55a05330f8cc	192	cipher[0], cipher[1], cipher[2], cipher[3], cipher[4], cipher[5], cipher[6], cipher[7]));
darran	0:55a05330f8cc	193	#endif
darran	0:55a05330f8cc	194	}
darran	0:55a05330f8cc	195
darran	0:55a05330f8cc	196	#else /* USE_CRYPT */
darran	0:55a05330f8cc	197
darran	0:55a05330f8cc	198	static void
darran	0:55a05330f8cc	199	DesEncrypt( u_char clear, / IN 8 octets */
darran	0:55a05330f8cc	200	u_char key, / IN 7 octets */
darran	0:55a05330f8cc	201	u_char cipher / OUT 8 octets */)
darran	0:55a05330f8cc	202	{
darran	0:55a05330f8cc	203	des_cblock des_key;
darran	0:55a05330f8cc	204	des_key_schedule key_schedule;
darran	0:55a05330f8cc	205
darran	0:55a05330f8cc	206	MakeKey(key, des_key);
darran	0:55a05330f8cc	207
darran	0:55a05330f8cc	208	des_set_key(&des_key, key_schedule);
darran	0:55a05330f8cc	209
darran	0:55a05330f8cc	210	#if 0
darran	0:55a05330f8cc	211	CHAPDEBUG(LOG_INFO, ("DesEncrypt: 8 octet input : %02X%02X%02X%02X%02X%02X%02X%02X\n",
darran	0:55a05330f8cc	212	clear[0], clear[1], clear[2], clear[3], clear[4], clear[5], clear[6], clear[7]));
darran	0:55a05330f8cc	213	#endif
darran	0:55a05330f8cc	214
darran	0:55a05330f8cc	215	des_ecb_encrypt((des_cblock )clear, (des_cblock )cipher, key_schedule, 1);
darran	0:55a05330f8cc	216
darran	0:55a05330f8cc	217	#if 0
darran	0:55a05330f8cc	218	CHAPDEBUG(LOG_INFO, ("DesEncrypt: 8 octet output: %02X%02X%02X%02X%02X%02X%02X%02X\n",
darran	0:55a05330f8cc	219	cipher[0], cipher[1], cipher[2], cipher[3], cipher[4], cipher[5], cipher[6], cipher[7]));
darran	0:55a05330f8cc	220	#endif
darran	0:55a05330f8cc	221	}
darran	0:55a05330f8cc	222
darran	0:55a05330f8cc	223	#endif /* USE_CRYPT */
darran	0:55a05330f8cc	224
darran	0:55a05330f8cc	225
darran	0:55a05330f8cc	226	static u_char
darran	0:55a05330f8cc	227	Get7Bits( u_char *input, int startBit)
darran	0:55a05330f8cc	228	{
darran	0:55a05330f8cc	229	register unsigned int word;
darran	0:55a05330f8cc	230
darran	0:55a05330f8cc	231	word = (unsigned)input[startBit / 8] << 8;
darran	0:55a05330f8cc	232	word \|= (unsigned)input[startBit / 8 + 1];
darran	0:55a05330f8cc	233
darran	0:55a05330f8cc	234	word >>= 15 - (startBit % 8 + 7);
darran	0:55a05330f8cc	235
darran	0:55a05330f8cc	236	return word & 0xFE;
darran	0:55a05330f8cc	237	}
darran	0:55a05330f8cc	238
darran	0:55a05330f8cc	239	#ifdef USE_CRYPT
darran	0:55a05330f8cc	240
darran	0:55a05330f8cc	241	/* in == 8-byte string (expanded version of the 56-bit key)
darran	0:55a05330f8cc	242	* out == 64-byte string where each byte is either 1 or 0
darran	0:55a05330f8cc	243	* Note that the low-order "bit" is always ignored by by setkey()
darran	0:55a05330f8cc	244	*/
darran	0:55a05330f8cc	245	static void
darran	0:55a05330f8cc	246	Expand(u_char in, u_char out)
darran	0:55a05330f8cc	247	{
darran	0:55a05330f8cc	248	int j, c;
darran	0:55a05330f8cc	249	int i;
darran	0:55a05330f8cc	250
darran	0:55a05330f8cc	251	for(i = 0; i < 64; in++){
darran	0:55a05330f8cc	252	c = *in;
darran	0:55a05330f8cc	253	for(j = 7; j >= 0; j--) {
darran	0:55a05330f8cc	254	*out++ = (c >> j) & 01;
darran	0:55a05330f8cc	255	}
darran	0:55a05330f8cc	256	i += 8;
darran	0:55a05330f8cc	257	}
darran	0:55a05330f8cc	258	}
darran	0:55a05330f8cc	259
darran	0:55a05330f8cc	260	/* The inverse of Expand
darran	0:55a05330f8cc	261	*/
darran	0:55a05330f8cc	262	static void
darran	0:55a05330f8cc	263	Collapse(u_char in, u_char out)
darran	0:55a05330f8cc	264	{
darran	0:55a05330f8cc	265	int j;
darran	0:55a05330f8cc	266	int i;
darran	0:55a05330f8cc	267	unsigned int c;
darran	0:55a05330f8cc	268
darran	0:55a05330f8cc	269	for (i = 0; i < 64; i += 8, out++) {
darran	0:55a05330f8cc	270	c = 0;
darran	0:55a05330f8cc	271	for (j = 7; j >= 0; j--, in++) {
darran	0:55a05330f8cc	272	c \|= *in << j;
darran	0:55a05330f8cc	273	}
darran	0:55a05330f8cc	274	*out = c & 0xff;
darran	0:55a05330f8cc	275	}
darran	0:55a05330f8cc	276	}
darran	0:55a05330f8cc	277	#endif
darran	0:55a05330f8cc	278
darran	0:55a05330f8cc	279	static void
darran	0:55a05330f8cc	280	MakeKey( u_char key, / IN 56 bit DES key missing parity bits */
darran	0:55a05330f8cc	281	u_char des_key / OUT 64 bit DES key with parity bits added */)
darran	0:55a05330f8cc	282	{
darran	0:55a05330f8cc	283	des_key[0] = Get7Bits(key, 0);
darran	0:55a05330f8cc	284	des_key[1] = Get7Bits(key, 7);
darran	0:55a05330f8cc	285	des_key[2] = Get7Bits(key, 14);
darran	0:55a05330f8cc	286	des_key[3] = Get7Bits(key, 21);
darran	0:55a05330f8cc	287	des_key[4] = Get7Bits(key, 28);
darran	0:55a05330f8cc	288	des_key[5] = Get7Bits(key, 35);
darran	0:55a05330f8cc	289	des_key[6] = Get7Bits(key, 42);
darran	0:55a05330f8cc	290	des_key[7] = Get7Bits(key, 49);
darran	0:55a05330f8cc	291
darran	0:55a05330f8cc	292	#ifndef USE_CRYPT
darran	0:55a05330f8cc	293	des_set_odd_parity((des_cblock *)des_key);
darran	0:55a05330f8cc	294	#endif
darran	0:55a05330f8cc	295
darran	0:55a05330f8cc	296	#if 0
darran	0:55a05330f8cc	297	CHAPDEBUG(LOG_INFO, ("MakeKey: 56-bit input : %02X%02X%02X%02X%02X%02X%02X\n",
darran	0:55a05330f8cc	298	key[0], key[1], key[2], key[3], key[4], key[5], key[6]));
darran	0:55a05330f8cc	299	CHAPDEBUG(LOG_INFO, ("MakeKey: 64-bit output: %02X%02X%02X%02X%02X%02X%02X%02X\n",
darran	0:55a05330f8cc	300	des_key[0], des_key[1], des_key[2], des_key[3], des_key[4], des_key[5], des_key[6], des_key[7]));
darran	0:55a05330f8cc	301	#endif
darran	0:55a05330f8cc	302	}
darran	0:55a05330f8cc	303
darran	0:55a05330f8cc	304	static void
darran	0:55a05330f8cc	305	ChapMS_NT( char *rchallenge,
darran	0:55a05330f8cc	306	int rchallenge_len,
darran	0:55a05330f8cc	307	char *secret,
darran	0:55a05330f8cc	308	int secret_len,
darran	0:55a05330f8cc	309	MS_ChapResponse *response)
darran	0:55a05330f8cc	310	{
darran	0:55a05330f8cc	311	int i;
darran	0:55a05330f8cc	312	MDstruct md4Context;
darran	0:55a05330f8cc	313	u_char unicodePassword[MAX_NT_PASSWORD * 2];
darran	0:55a05330f8cc	314	static int low_byte_first = -1;
darran	0:55a05330f8cc	315
darran	0:55a05330f8cc	316	LWIP_UNUSED_ARG(rchallenge_len);
darran	0:55a05330f8cc	317
darran	0:55a05330f8cc	318	/* Initialize the Unicode version of the secret (== password). */
darran	0:55a05330f8cc	319	/* This implicitly supports 8-bit ISO8859/1 characters. */
darran	0:55a05330f8cc	320	BZERO(unicodePassword, sizeof(unicodePassword));
darran	0:55a05330f8cc	321	for (i = 0; i < secret_len; i++) {
darran	0:55a05330f8cc	322	unicodePassword[i * 2] = (u_char)secret[i];
darran	0:55a05330f8cc	323	}
darran	0:55a05330f8cc	324	MDbegin(&md4Context);
darran	0:55a05330f8cc	325	MDupdate(&md4Context, unicodePassword, secret_len * 2 * 8); /* Unicode is 2 bytes/char, 8 for bit count /
darran	0:55a05330f8cc	326
darran	0:55a05330f8cc	327	if (low_byte_first == -1) {
darran	0:55a05330f8cc	328	low_byte_first = (htons((unsigned short int)1) != 1);
darran	0:55a05330f8cc	329	}
darran	0:55a05330f8cc	330	if (low_byte_first == 0) {
darran	0:55a05330f8cc	331	/* @todo: arg type - u_long* or u_int* ? */
darran	0:55a05330f8cc	332	MDreverse((unsigned int)&md4Context); / sfb 961105 */
darran	0:55a05330f8cc	333	}
darran	0:55a05330f8cc	334
darran	0:55a05330f8cc	335	MDupdate(&md4Context, NULL, 0); /* Tell MD4 we're done */
darran	0:55a05330f8cc	336
darran	0:55a05330f8cc	337	ChallengeResponse((u_char)rchallenge, (u_char)md4Context.buffer, response->NTResp);
darran	0:55a05330f8cc	338	}
darran	0:55a05330f8cc	339
darran	0:55a05330f8cc	340	#ifdef MSLANMAN
darran	0:55a05330f8cc	341	static u_char StdText = (u_char )"KGS!@#$%"; /* key from rasapi32.dll */
darran	0:55a05330f8cc	342
darran	0:55a05330f8cc	343	static void
darran	0:55a05330f8cc	344	ChapMS_LANMan( char *rchallenge,
darran	0:55a05330f8cc	345	int rchallenge_len,
darran	0:55a05330f8cc	346	char *secret,
darran	0:55a05330f8cc	347	int secret_len,
darran	0:55a05330f8cc	348	MS_ChapResponse *response)
darran	0:55a05330f8cc	349	{
darran	0:55a05330f8cc	350	int i;
darran	0:55a05330f8cc	351	u_char UcasePassword[MAX_NT_PASSWORD]; /* max is actually 14 */
darran	0:55a05330f8cc	352	u_char PasswordHash[16];
darran	0:55a05330f8cc	353
darran	0:55a05330f8cc	354	/* LANMan password is case insensitive */
darran	0:55a05330f8cc	355	BZERO(UcasePassword, sizeof(UcasePassword));
darran	0:55a05330f8cc	356	for (i = 0; i < secret_len; i++) {
darran	0:55a05330f8cc	357	UcasePassword[i] = (u_char)toupper(secret[i]);
darran	0:55a05330f8cc	358	}
darran	0:55a05330f8cc	359	DesEncrypt( StdText, UcasePassword + 0, PasswordHash + 0 );
darran	0:55a05330f8cc	360	DesEncrypt( StdText, UcasePassword + 7, PasswordHash + 8 );
darran	0:55a05330f8cc	361	ChallengeResponse(rchallenge, PasswordHash, response->LANManResp);
darran	0:55a05330f8cc	362	}
darran	0:55a05330f8cc	363	#endif
darran	0:55a05330f8cc	364
darran	0:55a05330f8cc	365	void
darran	0:55a05330f8cc	366	ChapMS( chap_state cstate, char rchallenge, int rchallenge_len, char *secret, int secret_len)
darran	0:55a05330f8cc	367	{
darran	0:55a05330f8cc	368	MS_ChapResponse response;
darran	0:55a05330f8cc	369	#ifdef MSLANMAN
darran	0:55a05330f8cc	370	extern int ms_lanman;
darran	0:55a05330f8cc	371	#endif
darran	0:55a05330f8cc	372
darran	0:55a05330f8cc	373	#if 0
darran	0:55a05330f8cc	374	CHAPDEBUG(LOG_INFO, ("ChapMS: secret is '%.*s'\n", secret_len, secret));
darran	0:55a05330f8cc	375	#endif
darran	0:55a05330f8cc	376	BZERO(&response, sizeof(response));
darran	0:55a05330f8cc	377
darran	0:55a05330f8cc	378	/* Calculate both always */
darran	0:55a05330f8cc	379	ChapMS_NT(rchallenge, rchallenge_len, secret, secret_len, &response);
darran	0:55a05330f8cc	380
darran	0:55a05330f8cc	381	#ifdef MSLANMAN
darran	0:55a05330f8cc	382	ChapMS_LANMan(rchallenge, rchallenge_len, secret, secret_len, &response);
darran	0:55a05330f8cc	383
darran	0:55a05330f8cc	384	/* prefered method is set by option */
darran	0:55a05330f8cc	385	response.UseNT = !ms_lanman;
darran	0:55a05330f8cc	386	#else
darran	0:55a05330f8cc	387	response.UseNT = 1;
darran	0:55a05330f8cc	388	#endif
darran	0:55a05330f8cc	389
darran	0:55a05330f8cc	390	BCOPY(&response, cstate->response, MS_CHAP_RESPONSE_LEN);
darran	0:55a05330f8cc	391	cstate->resp_length = MS_CHAP_RESPONSE_LEN;
darran	0:55a05330f8cc	392	}
darran	0:55a05330f8cc	393
darran	0:55a05330f8cc	394	#endif /* MSCHAP_SUPPORT */
darran	0:55a05330f8cc	395
darran	0:55a05330f8cc	396	#endif /* PPP_SUPPORT */

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Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	18 Jun 2010
Imports:	7
Forks:	0
Commits:	2
Dependents:	0
Dependencies:	1
Followers:	1

lwip/netif/ppp/chpms.c@1:4218cacaf696, 2010-06-18 (annotated)

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