roy roy / EthernetNetIf

a

Fork of EthernetNetIf by Donatien Garnier

LPC1768/lwip/netif/ppp/chap.h@6:13a3e24ed1a3, 2016-11-27 (annotated)

Committer:
anze777
Date:
Sun Nov 27 14:42:41 2016 +0000
Revision:
6:13a3e24ed1a3
Parent:
0:422060928e37 
2016 11/27

Who changed what in which revision?

UserRevisionLine numberNew contents of line
donatien 0:422060928e37 1 /*****************************************************************************
donatien 0:422060928e37 2 * chap.h - Network Challenge Handshake Authentication Protocol header file.
donatien 0:422060928e37 3 *
donatien 0:422060928e37 4 * Copyright (c) 2003 by Marc Boucher, Services Informatiques (MBSI) inc.
donatien 0:422060928e37 5 * portions Copyright (c) 1998 Global Election Systems Inc.
donatien 0:422060928e37 6 *
donatien 0:422060928e37 7 * The authors hereby grant permission to use, copy, modify, distribute,
donatien 0:422060928e37 8 * and license this software and its documentation for any purpose, provided
donatien 0:422060928e37 9 * that existing copyright notices are retained in all copies and that this
donatien 0:422060928e37 10 * notice and the following disclaimer are included verbatim in any
donatien 0:422060928e37 11 * distributions. No written agreement, license, or royalty fee is required
donatien 0:422060928e37 12 * for any of the authorized uses.
donatien 0:422060928e37 13 *
donatien 0:422060928e37 14 * THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS *AS IS* AND ANY EXPRESS OR
donatien 0:422060928e37 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
donatien 0:422060928e37 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
donatien 0:422060928e37 17 * IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
donatien 0:422060928e37 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
donatien 0:422060928e37 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
donatien 0:422060928e37 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
donatien 0:422060928e37 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
donatien 0:422060928e37 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
donatien 0:422060928e37 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
donatien 0:422060928e37 24 *
donatien 0:422060928e37 25 ******************************************************************************
donatien 0:422060928e37 26 * REVISION HISTORY
donatien 0:422060928e37 27 *
donatien 0:422060928e37 28 * 03-01-01 Marc Boucher <marc@mbsi.ca>
donatien 0:422060928e37 29 * Ported to lwIP.
donatien 0:422060928e37 30 * 97-12-03 Guy Lancaster <lancasterg@acm.org>, Global Election Systems Inc.
donatien 0:422060928e37 31 * Original built from BSD network code.
donatien 0:422060928e37 32 ******************************************************************************/
donatien 0:422060928e37 33 /*
donatien 0:422060928e37 34 * chap.h - Challenge Handshake Authentication Protocol definitions.
donatien 0:422060928e37 35 *
donatien 0:422060928e37 36 * Copyright (c) 1993 The Australian National University.
donatien 0:422060928e37 37 * All rights reserved.
donatien 0:422060928e37 38 *
donatien 0:422060928e37 39 * Redistribution and use in source and binary forms are permitted
donatien 0:422060928e37 40 * provided that the above copyright notice and this paragraph are
donatien 0:422060928e37 41 * duplicated in all such forms and that any documentation,
donatien 0:422060928e37 42 * advertising materials, and other materials related to such
donatien 0:422060928e37 43 * distribution and use acknowledge that the software was developed
donatien 0:422060928e37 44 * by the Australian National University. The name of the University
donatien 0:422060928e37 45 * may not be used to endorse or promote products derived from this
donatien 0:422060928e37 46 * software without specific prior written permission.
donatien 0:422060928e37 47 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
donatien 0:422060928e37 48 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
donatien 0:422060928e37 49 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
donatien 0:422060928e37 50 *
donatien 0:422060928e37 51 * Copyright (c) 1991 Gregory M. Christy
donatien 0:422060928e37 52 * All rights reserved.
donatien 0:422060928e37 53 *
donatien 0:422060928e37 54 * Redistribution and use in source and binary forms are permitted
donatien 0:422060928e37 55 * provided that the above copyright notice and this paragraph are
donatien 0:422060928e37 56 * duplicated in all such forms and that any documentation,
donatien 0:422060928e37 57 * advertising materials, and other materials related to such
donatien 0:422060928e37 58 * distribution and use acknowledge that the software was developed
donatien 0:422060928e37 59 * by the author.
donatien 0:422060928e37 60 *
donatien 0:422060928e37 61 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
donatien 0:422060928e37 62 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
donatien 0:422060928e37 63 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
donatien 0:422060928e37 64 *
donatien 0:422060928e37 65 * $Id: chap.h,v 1.6 2010/01/24 13:19:34 goldsimon Exp $
donatien 0:422060928e37 66 */
donatien 0:422060928e37 67
donatien 0:422060928e37 68 #ifndef CHAP_H
donatien 0:422060928e37 69 #define CHAP_H
donatien 0:422060928e37 70
donatien 0:422060928e37 71 /* Code + ID + length */
donatien 0:422060928e37 72 #define CHAP_HEADERLEN 4
donatien 0:422060928e37 73
donatien 0:422060928e37 74 /*
donatien 0:422060928e37 75 * CHAP codes.
donatien 0:422060928e37 76 */
donatien 0:422060928e37 77
donatien 0:422060928e37 78 #define CHAP_DIGEST_MD5 5 /* use MD5 algorithm */
donatien 0:422060928e37 79 #define MD5_SIGNATURE_SIZE 16 /* 16 bytes in a MD5 message digest */
donatien 0:422060928e37 80 #define CHAP_MICROSOFT 0x80 /* use Microsoft-compatible alg. */
donatien 0:422060928e37 81 #define MS_CHAP_RESPONSE_LEN 49 /* Response length for MS-CHAP */
donatien 0:422060928e37 82
donatien 0:422060928e37 83 #define CHAP_CHALLENGE 1
donatien 0:422060928e37 84 #define CHAP_RESPONSE 2
donatien 0:422060928e37 85 #define CHAP_SUCCESS 3
donatien 0:422060928e37 86 #define CHAP_FAILURE 4
donatien 0:422060928e37 87
donatien 0:422060928e37 88 /*
donatien 0:422060928e37 89 * Challenge lengths (for challenges we send) and other limits.
donatien 0:422060928e37 90 */
donatien 0:422060928e37 91 #define MIN_CHALLENGE_LENGTH 32
donatien 0:422060928e37 92 #define MAX_CHALLENGE_LENGTH 64
donatien 0:422060928e37 93 #define MAX_RESPONSE_LENGTH 64 /* sufficient for MD5 or MS-CHAP */
donatien 0:422060928e37 94
donatien 0:422060928e37 95 /*
donatien 0:422060928e37 96 * Each interface is described by a chap structure.
donatien 0:422060928e37 97 */
donatien 0:422060928e37 98
donatien 0:422060928e37 99 typedef struct chap_state {
donatien 0:422060928e37 100 int unit; /* Interface unit number */
donatien 0:422060928e37 101 int clientstate; /* Client state */
donatien 0:422060928e37 102 int serverstate; /* Server state */
donatien 0:422060928e37 103 u_char challenge[MAX_CHALLENGE_LENGTH]; /* last challenge string sent */
donatien 0:422060928e37 104 u_char chal_len; /* challenge length */
donatien 0:422060928e37 105 u_char chal_id; /* ID of last challenge */
donatien 0:422060928e37 106 u_char chal_type; /* hash algorithm for challenges */
donatien 0:422060928e37 107 u_char id; /* Current id */
donatien 0:422060928e37 108 char *chal_name; /* Our name to use with challenge */
donatien 0:422060928e37 109 int chal_interval; /* Time until we challenge peer again */
donatien 0:422060928e37 110 int timeouttime; /* Timeout time in seconds */
donatien 0:422060928e37 111 int max_transmits; /* Maximum # of challenge transmissions */
donatien 0:422060928e37 112 int chal_transmits; /* Number of transmissions of challenge */
donatien 0:422060928e37 113 int resp_transmits; /* Number of transmissions of response */
donatien 0:422060928e37 114 u_char response[MAX_RESPONSE_LENGTH]; /* Response to send */
donatien 0:422060928e37 115 u_char resp_length; /* length of response */
donatien 0:422060928e37 116 u_char resp_id; /* ID for response messages */
donatien 0:422060928e37 117 u_char resp_type; /* hash algorithm for responses */
donatien 0:422060928e37 118 char *resp_name; /* Our name to send with response */
donatien 0:422060928e37 119 } chap_state;
donatien 0:422060928e37 120
donatien 0:422060928e37 121
donatien 0:422060928e37 122 /*
donatien 0:422060928e37 123 * Client (peer) states.
donatien 0:422060928e37 124 */
donatien 0:422060928e37 125 #define CHAPCS_INITIAL 0 /* Lower layer down, not opened */
donatien 0:422060928e37 126 #define CHAPCS_CLOSED 1 /* Lower layer up, not opened */
donatien 0:422060928e37 127 #define CHAPCS_PENDING 2 /* Auth us to peer when lower up */
donatien 0:422060928e37 128 #define CHAPCS_LISTEN 3 /* Listening for a challenge */
donatien 0:422060928e37 129 #define CHAPCS_RESPONSE 4 /* Sent response, waiting for status */
donatien 0:422060928e37 130 #define CHAPCS_OPEN 5 /* We've received Success */
donatien 0:422060928e37 131
donatien 0:422060928e37 132 /*
donatien 0:422060928e37 133 * Server (authenticator) states.
donatien 0:422060928e37 134 */
donatien 0:422060928e37 135 #define CHAPSS_INITIAL 0 /* Lower layer down, not opened */
donatien 0:422060928e37 136 #define CHAPSS_CLOSED 1 /* Lower layer up, not opened */
donatien 0:422060928e37 137 #define CHAPSS_PENDING 2 /* Auth peer when lower up */
donatien 0:422060928e37 138 #define CHAPSS_INITIAL_CHAL 3 /* We've sent the first challenge */
donatien 0:422060928e37 139 #define CHAPSS_OPEN 4 /* We've sent a Success msg */
donatien 0:422060928e37 140 #define CHAPSS_RECHALLENGE 5 /* We've sent another challenge */
donatien 0:422060928e37 141 #define CHAPSS_BADAUTH 6 /* We've sent a Failure msg */
donatien 0:422060928e37 142
donatien 0:422060928e37 143 extern chap_state chap[];
donatien 0:422060928e37 144
donatien 0:422060928e37 145 void ChapAuthWithPeer (int, char *, u_char);
donatien 0:422060928e37 146 void ChapAuthPeer (int, char *, u_char);
donatien 0:422060928e37 147
donatien 0:422060928e37 148 extern struct protent chap_protent;
donatien 0:422060928e37 149
donatien 0:422060928e37 150 #endif /* CHAP_H */