/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 1996 - 2001 Brian Somers <brian@Awfulhak.org>
* based on work by Toshiharu OHNO <tony-o@iij.ad.jp>
* Internet Initiative Japan, Inc (IIJ)
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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.
*/
struct mbuf;
struct physical;
#define CHAP_CHALLENGE 1
#define CHAP_RESPONSE 2
#define CHAP_SUCCESS 3
#define CHAP_FAILURE 4
struct chap {
struct fdescriptor desc;
struct {
pid_t pid;
int fd;
struct {
char ptr[AUTHLEN * 2 + 3]; /* Allow for \r\n at the end (- NUL) */
int len;
} buf;
} child;
struct authinfo auth;
struct {
u_char local[CHAPCHALLENGELEN + AUTHLEN]; /* I invented this one */
u_char peer[CHAPCHALLENGELEN + AUTHLEN]; /* Peer gave us this one */
} challenge;
#ifndef NODES
unsigned NTRespSent : 1; /* Our last response */
int peertries;
u_char authresponse[CHAPAUTHRESPONSELEN]; /* CHAP 81 response */
#endif
};
#define descriptor2chap(d) \
((d)->type == CHAP_DESCRIPTOR ? (struct chap *)(d) : NULL)
#define auth2chap(a) \
((struct chap *)((char *)a - (uintptr_t)&((struct chap *)0)->auth))
struct MSCHAPv2_resp { /* rfc2759 */
char PeerChallenge[16];
char Reserved[8];
char NTResponse[24];
char Flags;
};
extern void chap_Init(struct chap *, struct physical *);
extern void chap_ReInit(struct chap *);
extern struct mbuf *chap_Input(struct bundle *, struct link *, struct mbuf *);
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