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Dependencies:   mbed

NetServices/lwip/netif/ppp/chap.h@1:f5ac63519541, 2014-03-05 (annotated)

Committer:
Michael J. Spencer
Date:
Wed Mar 05 06:14:02 2014 -0800
Revision:
1:f5ac63519541
Initial commit.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Michael J. Spencer 1:f5ac63519541 1 /*****************************************************************************
Michael J. Spencer 1:f5ac63519541 2 * chap.h - Network Challenge Handshake Authentication Protocol header file.
Michael J. Spencer 1:f5ac63519541 3 *
Michael J. Spencer 1:f5ac63519541 4 * Copyright (c) 2003 by Marc Boucher, Services Informatiques (MBSI) inc.
Michael J. Spencer 1:f5ac63519541 5 * portions Copyright (c) 1998 Global Election Systems Inc.
Michael J. Spencer 1:f5ac63519541 6 *
Michael J. Spencer 1:f5ac63519541 7 * The authors hereby grant permission to use, copy, modify, distribute,
Michael J. Spencer 1:f5ac63519541 8 * and license this software and its documentation for any purpose, provided
Michael J. Spencer 1:f5ac63519541 9 * that existing copyright notices are retained in all copies and that this
Michael J. Spencer 1:f5ac63519541 10 * notice and the following disclaimer are included verbatim in any
Michael J. Spencer 1:f5ac63519541 11 * distributions. No written agreement, license, or royalty fee is required
Michael J. Spencer 1:f5ac63519541 12 * for any of the authorized uses.
Michael J. Spencer 1:f5ac63519541 13 *
Michael J. Spencer 1:f5ac63519541 14 * THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS *AS IS* AND ANY EXPRESS OR
Michael J. Spencer 1:f5ac63519541 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
Michael J. Spencer 1:f5ac63519541 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
Michael J. Spencer 1:f5ac63519541 17 * IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
Michael J. Spencer 1:f5ac63519541 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
Michael J. Spencer 1:f5ac63519541 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
Michael J. Spencer 1:f5ac63519541 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
Michael J. Spencer 1:f5ac63519541 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
Michael J. Spencer 1:f5ac63519541 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
Michael J. Spencer 1:f5ac63519541 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Michael J. Spencer 1:f5ac63519541 24 *
Michael J. Spencer 1:f5ac63519541 25 ******************************************************************************
Michael J. Spencer 1:f5ac63519541 26 * REVISION HISTORY
Michael J. Spencer 1:f5ac63519541 27 *
Michael J. Spencer 1:f5ac63519541 28 * 03-01-01 Marc Boucher <marc@mbsi.ca>
Michael J. Spencer 1:f5ac63519541 29 * Ported to lwIP.
Michael J. Spencer 1:f5ac63519541 30 * 97-12-03 Guy Lancaster <lancasterg@acm.org>, Global Election Systems Inc.
Michael J. Spencer 1:f5ac63519541 31 * Original built from BSD network code.
Michael J. Spencer 1:f5ac63519541 32 ******************************************************************************/
Michael J. Spencer 1:f5ac63519541 33 /*
Michael J. Spencer 1:f5ac63519541 34 * chap.h - Challenge Handshake Authentication Protocol definitions.
Michael J. Spencer 1:f5ac63519541 35 *
Michael J. Spencer 1:f5ac63519541 36 * Copyright (c) 1993 The Australian National University.
Michael J. Spencer 1:f5ac63519541 37 * All rights reserved.
Michael J. Spencer 1:f5ac63519541 38 *
Michael J. Spencer 1:f5ac63519541 39 * Redistribution and use in source and binary forms are permitted
Michael J. Spencer 1:f5ac63519541 40 * provided that the above copyright notice and this paragraph are
Michael J. Spencer 1:f5ac63519541 41 * duplicated in all such forms and that any documentation,
Michael J. Spencer 1:f5ac63519541 42 * advertising materials, and other materials related to such
Michael J. Spencer 1:f5ac63519541 43 * distribution and use acknowledge that the software was developed
Michael J. Spencer 1:f5ac63519541 44 * by the Australian National University. The name of the University
Michael J. Spencer 1:f5ac63519541 45 * may not be used to endorse or promote products derived from this
Michael J. Spencer 1:f5ac63519541 46 * software without specific prior written permission.
Michael J. Spencer 1:f5ac63519541 47 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
Michael J. Spencer 1:f5ac63519541 48 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
Michael J. Spencer 1:f5ac63519541 49 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
Michael J. Spencer 1:f5ac63519541 50 *
Michael J. Spencer 1:f5ac63519541 51 * Copyright (c) 1991 Gregory M. Christy
Michael J. Spencer 1:f5ac63519541 52 * All rights reserved.
Michael J. Spencer 1:f5ac63519541 53 *
Michael J. Spencer 1:f5ac63519541 54 * Redistribution and use in source and binary forms are permitted
Michael J. Spencer 1:f5ac63519541 55 * provided that the above copyright notice and this paragraph are
Michael J. Spencer 1:f5ac63519541 56 * duplicated in all such forms and that any documentation,
Michael J. Spencer 1:f5ac63519541 57 * advertising materials, and other materials related to such
Michael J. Spencer 1:f5ac63519541 58 * distribution and use acknowledge that the software was developed
Michael J. Spencer 1:f5ac63519541 59 * by the author.
Michael J. Spencer 1:f5ac63519541 60 *
Michael J. Spencer 1:f5ac63519541 61 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
Michael J. Spencer 1:f5ac63519541 62 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
Michael J. Spencer 1:f5ac63519541 63 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
Michael J. Spencer 1:f5ac63519541 64 *
Michael J. Spencer 1:f5ac63519541 65 * $Id: chap.h,v 1.6 2010/01/24 13:19:34 goldsimon Exp $
Michael J. Spencer 1:f5ac63519541 66 */
Michael J. Spencer 1:f5ac63519541 67
Michael J. Spencer 1:f5ac63519541 68 #ifndef CHAP_H
Michael J. Spencer 1:f5ac63519541 69 #define CHAP_H
Michael J. Spencer 1:f5ac63519541 70
Michael J. Spencer 1:f5ac63519541 71 /* Code + ID + length */
Michael J. Spencer 1:f5ac63519541 72 #define CHAP_HEADERLEN 4
Michael J. Spencer 1:f5ac63519541 73
Michael J. Spencer 1:f5ac63519541 74 /*
Michael J. Spencer 1:f5ac63519541 75 * CHAP codes.
Michael J. Spencer 1:f5ac63519541 76 */
Michael J. Spencer 1:f5ac63519541 77
Michael J. Spencer 1:f5ac63519541 78 #define CHAP_DIGEST_MD5 5 /* use MD5 algorithm */
Michael J. Spencer 1:f5ac63519541 79 #define MD5_SIGNATURE_SIZE 16 /* 16 bytes in a MD5 message digest */
Michael J. Spencer 1:f5ac63519541 80 #define CHAP_MICROSOFT 0x80 /* use Microsoft-compatible alg. */
Michael J. Spencer 1:f5ac63519541 81 #define MS_CHAP_RESPONSE_LEN 49 /* Response length for MS-CHAP */
Michael J. Spencer 1:f5ac63519541 82
Michael J. Spencer 1:f5ac63519541 83 #define CHAP_CHALLENGE 1
Michael J. Spencer 1:f5ac63519541 84 #define CHAP_RESPONSE 2
Michael J. Spencer 1:f5ac63519541 85 #define CHAP_SUCCESS 3
Michael J. Spencer 1:f5ac63519541 86 #define CHAP_FAILURE 4
Michael J. Spencer 1:f5ac63519541 87
Michael J. Spencer 1:f5ac63519541 88 /*
Michael J. Spencer 1:f5ac63519541 89 * Challenge lengths (for challenges we send) and other limits.
Michael J. Spencer 1:f5ac63519541 90 */
Michael J. Spencer 1:f5ac63519541 91 #define MIN_CHALLENGE_LENGTH 32
Michael J. Spencer 1:f5ac63519541 92 #define MAX_CHALLENGE_LENGTH 64
Michael J. Spencer 1:f5ac63519541 93 #define MAX_RESPONSE_LENGTH 64 /* sufficient for MD5 or MS-CHAP */
Michael J. Spencer 1:f5ac63519541 94
Michael J. Spencer 1:f5ac63519541 95 /*
Michael J. Spencer 1:f5ac63519541 96 * Each interface is described by a chap structure.
Michael J. Spencer 1:f5ac63519541 97 */
Michael J. Spencer 1:f5ac63519541 98
Michael J. Spencer 1:f5ac63519541 99 typedef struct chap_state {
Michael J. Spencer 1:f5ac63519541 100 int unit; /* Interface unit number */
Michael J. Spencer 1:f5ac63519541 101 int clientstate; /* Client state */
Michael J. Spencer 1:f5ac63519541 102 int serverstate; /* Server state */
Michael J. Spencer 1:f5ac63519541 103 u_char challenge[MAX_CHALLENGE_LENGTH]; /* last challenge string sent */
Michael J. Spencer 1:f5ac63519541 104 u_char chal_len; /* challenge length */
Michael J. Spencer 1:f5ac63519541 105 u_char chal_id; /* ID of last challenge */
Michael J. Spencer 1:f5ac63519541 106 u_char chal_type; /* hash algorithm for challenges */
Michael J. Spencer 1:f5ac63519541 107 u_char id; /* Current id */
Michael J. Spencer 1:f5ac63519541 108 char *chal_name; /* Our name to use with challenge */
Michael J. Spencer 1:f5ac63519541 109 int chal_interval; /* Time until we challenge peer again */
Michael J. Spencer 1:f5ac63519541 110 int timeouttime; /* Timeout time in seconds */
Michael J. Spencer 1:f5ac63519541 111 int max_transmits; /* Maximum # of challenge transmissions */
Michael J. Spencer 1:f5ac63519541 112 int chal_transmits; /* Number of transmissions of challenge */
Michael J. Spencer 1:f5ac63519541 113 int resp_transmits; /* Number of transmissions of response */
Michael J. Spencer 1:f5ac63519541 114 u_char response[MAX_RESPONSE_LENGTH]; /* Response to send */
Michael J. Spencer 1:f5ac63519541 115 u_char resp_length; /* length of response */
Michael J. Spencer 1:f5ac63519541 116 u_char resp_id; /* ID for response messages */
Michael J. Spencer 1:f5ac63519541 117 u_char resp_type; /* hash algorithm for responses */
Michael J. Spencer 1:f5ac63519541 118 char *resp_name; /* Our name to send with response */
Michael J. Spencer 1:f5ac63519541 119 } chap_state;
Michael J. Spencer 1:f5ac63519541 120
Michael J. Spencer 1:f5ac63519541 121
Michael J. Spencer 1:f5ac63519541 122 /*
Michael J. Spencer 1:f5ac63519541 123 * Client (peer) states.
Michael J. Spencer 1:f5ac63519541 124 */
Michael J. Spencer 1:f5ac63519541 125 #define CHAPCS_INITIAL 0 /* Lower layer down, not opened */
Michael J. Spencer 1:f5ac63519541 126 #define CHAPCS_CLOSED 1 /* Lower layer up, not opened */
Michael J. Spencer 1:f5ac63519541 127 #define CHAPCS_PENDING 2 /* Auth us to peer when lower up */
Michael J. Spencer 1:f5ac63519541 128 #define CHAPCS_LISTEN 3 /* Listening for a challenge */
Michael J. Spencer 1:f5ac63519541 129 #define CHAPCS_RESPONSE 4 /* Sent response, waiting for status */
Michael J. Spencer 1:f5ac63519541 130 #define CHAPCS_OPEN 5 /* We've received Success */
Michael J. Spencer 1:f5ac63519541 131
Michael J. Spencer 1:f5ac63519541 132 /*
Michael J. Spencer 1:f5ac63519541 133 * Server (authenticator) states.
Michael J. Spencer 1:f5ac63519541 134 */
Michael J. Spencer 1:f5ac63519541 135 #define CHAPSS_INITIAL 0 /* Lower layer down, not opened */
Michael J. Spencer 1:f5ac63519541 136 #define CHAPSS_CLOSED 1 /* Lower layer up, not opened */
Michael J. Spencer 1:f5ac63519541 137 #define CHAPSS_PENDING 2 /* Auth peer when lower up */
Michael J. Spencer 1:f5ac63519541 138 #define CHAPSS_INITIAL_CHAL 3 /* We've sent the first challenge */
Michael J. Spencer 1:f5ac63519541 139 #define CHAPSS_OPEN 4 /* We've sent a Success msg */
Michael J. Spencer 1:f5ac63519541 140 #define CHAPSS_RECHALLENGE 5 /* We've sent another challenge */
Michael J. Spencer 1:f5ac63519541 141 #define CHAPSS_BADAUTH 6 /* We've sent a Failure msg */
Michael J. Spencer 1:f5ac63519541 142
Michael J. Spencer 1:f5ac63519541 143 extern chap_state chap[];
Michael J. Spencer 1:f5ac63519541 144
Michael J. Spencer 1:f5ac63519541 145 void ChapAuthWithPeer (int, char *, u_char);
Michael J. Spencer 1:f5ac63519541 146 void ChapAuthPeer (int, char *, u_char);
Michael J. Spencer 1:f5ac63519541 147
Michael J. Spencer 1:f5ac63519541 148 extern struct protent chap_protent;
Michael J. Spencer 1:f5ac63519541 149
Michael J. Spencer 1:f5ac63519541 150 #endif /* CHAP_H */