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netif/ppp/chap.h@0:51ac1d130fd4, 2012-06-22 (annotated)

Committer:
mbed_official
Date:
Fri Jun 22 09:25:39 2012 +0000
Revision:
0:51ac1d130fd4
Initial import from lwip-1.4.0: http://download.savannah.gnu.org/releases/lwip/lwip-1.4.0.zip

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 0:51ac1d130fd4 1 /*****************************************************************************
mbed_official 0:51ac1d130fd4 2 * chap.h - Network Challenge Handshake Authentication Protocol header file.
mbed_official 0:51ac1d130fd4 3 *
mbed_official 0:51ac1d130fd4 4 * Copyright (c) 2003 by Marc Boucher, Services Informatiques (MBSI) inc.
mbed_official 0:51ac1d130fd4 5 * portions Copyright (c) 1998 Global Election Systems Inc.
mbed_official 0:51ac1d130fd4 6 *
mbed_official 0:51ac1d130fd4 7 * The authors hereby grant permission to use, copy, modify, distribute,
mbed_official 0:51ac1d130fd4 8 * and license this software and its documentation for any purpose, provided
mbed_official 0:51ac1d130fd4 9 * that existing copyright notices are retained in all copies and that this
mbed_official 0:51ac1d130fd4 10 * notice and the following disclaimer are included verbatim in any
mbed_official 0:51ac1d130fd4 11 * distributions. No written agreement, license, or royalty fee is required
mbed_official 0:51ac1d130fd4 12 * for any of the authorized uses.
mbed_official 0:51ac1d130fd4 13 *
mbed_official 0:51ac1d130fd4 14 * THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS *AS IS* AND ANY EXPRESS OR
mbed_official 0:51ac1d130fd4 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
mbed_official 0:51ac1d130fd4 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
mbed_official 0:51ac1d130fd4 17 * IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
mbed_official 0:51ac1d130fd4 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
mbed_official 0:51ac1d130fd4 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
mbed_official 0:51ac1d130fd4 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
mbed_official 0:51ac1d130fd4 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
mbed_official 0:51ac1d130fd4 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
mbed_official 0:51ac1d130fd4 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 0:51ac1d130fd4 24 *
mbed_official 0:51ac1d130fd4 25 ******************************************************************************
mbed_official 0:51ac1d130fd4 26 * REVISION HISTORY
mbed_official 0:51ac1d130fd4 27 *
mbed_official 0:51ac1d130fd4 28 * 03-01-01 Marc Boucher <marc@mbsi.ca>
mbed_official 0:51ac1d130fd4 29 * Ported to lwIP.
mbed_official 0:51ac1d130fd4 30 * 97-12-03 Guy Lancaster <lancasterg@acm.org>, Global Election Systems Inc.
mbed_official 0:51ac1d130fd4 31 * Original built from BSD network code.
mbed_official 0:51ac1d130fd4 32 ******************************************************************************/
mbed_official 0:51ac1d130fd4 33 /*
mbed_official 0:51ac1d130fd4 34 * chap.h - Challenge Handshake Authentication Protocol definitions.
mbed_official 0:51ac1d130fd4 35 *
mbed_official 0:51ac1d130fd4 36 * Copyright (c) 1993 The Australian National University.
mbed_official 0:51ac1d130fd4 37 * All rights reserved.
mbed_official 0:51ac1d130fd4 38 *
mbed_official 0:51ac1d130fd4 39 * Redistribution and use in source and binary forms are permitted
mbed_official 0:51ac1d130fd4 40 * provided that the above copyright notice and this paragraph are
mbed_official 0:51ac1d130fd4 41 * duplicated in all such forms and that any documentation,
mbed_official 0:51ac1d130fd4 42 * advertising materials, and other materials related to such
mbed_official 0:51ac1d130fd4 43 * distribution and use acknowledge that the software was developed
mbed_official 0:51ac1d130fd4 44 * by the Australian National University. The name of the University
mbed_official 0:51ac1d130fd4 45 * may not be used to endorse or promote products derived from this
mbed_official 0:51ac1d130fd4 46 * software without specific prior written permission.
mbed_official 0:51ac1d130fd4 47 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
mbed_official 0:51ac1d130fd4 48 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
mbed_official 0:51ac1d130fd4 49 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
mbed_official 0:51ac1d130fd4 50 *
mbed_official 0:51ac1d130fd4 51 * Copyright (c) 1991 Gregory M. Christy
mbed_official 0:51ac1d130fd4 52 * All rights reserved.
mbed_official 0:51ac1d130fd4 53 *
mbed_official 0:51ac1d130fd4 54 * Redistribution and use in source and binary forms are permitted
mbed_official 0:51ac1d130fd4 55 * provided that the above copyright notice and this paragraph are
mbed_official 0:51ac1d130fd4 56 * duplicated in all such forms and that any documentation,
mbed_official 0:51ac1d130fd4 57 * advertising materials, and other materials related to such
mbed_official 0:51ac1d130fd4 58 * distribution and use acknowledge that the software was developed
mbed_official 0:51ac1d130fd4 59 * by the author.
mbed_official 0:51ac1d130fd4 60 *
mbed_official 0:51ac1d130fd4 61 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
mbed_official 0:51ac1d130fd4 62 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
mbed_official 0:51ac1d130fd4 63 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
mbed_official 0:51ac1d130fd4 64 *
mbed_official 0:51ac1d130fd4 65 * $Id: chap.h,v 1.6 2010/01/24 13:19:34 goldsimon Exp $
mbed_official 0:51ac1d130fd4 66 */
mbed_official 0:51ac1d130fd4 67
mbed_official 0:51ac1d130fd4 68 #ifndef CHAP_H
mbed_official 0:51ac1d130fd4 69 #define CHAP_H
mbed_official 0:51ac1d130fd4 70
mbed_official 0:51ac1d130fd4 71 /* Code + ID + length */
mbed_official 0:51ac1d130fd4 72 #define CHAP_HEADERLEN 4
mbed_official 0:51ac1d130fd4 73
mbed_official 0:51ac1d130fd4 74 /*
mbed_official 0:51ac1d130fd4 75 * CHAP codes.
mbed_official 0:51ac1d130fd4 76 */
mbed_official 0:51ac1d130fd4 77
mbed_official 0:51ac1d130fd4 78 #define CHAP_DIGEST_MD5 5 /* use MD5 algorithm */
mbed_official 0:51ac1d130fd4 79 #define MD5_SIGNATURE_SIZE 16 /* 16 bytes in a MD5 message digest */
mbed_official 0:51ac1d130fd4 80 #define CHAP_MICROSOFT 0x80 /* use Microsoft-compatible alg. */
mbed_official 0:51ac1d130fd4 81 #define MS_CHAP_RESPONSE_LEN 49 /* Response length for MS-CHAP */
mbed_official 0:51ac1d130fd4 82
mbed_official 0:51ac1d130fd4 83 #define CHAP_CHALLENGE 1
mbed_official 0:51ac1d130fd4 84 #define CHAP_RESPONSE 2
mbed_official 0:51ac1d130fd4 85 #define CHAP_SUCCESS 3
mbed_official 0:51ac1d130fd4 86 #define CHAP_FAILURE 4
mbed_official 0:51ac1d130fd4 87
mbed_official 0:51ac1d130fd4 88 /*
mbed_official 0:51ac1d130fd4 89 * Challenge lengths (for challenges we send) and other limits.
mbed_official 0:51ac1d130fd4 90 */
mbed_official 0:51ac1d130fd4 91 #define MIN_CHALLENGE_LENGTH 32
mbed_official 0:51ac1d130fd4 92 #define MAX_CHALLENGE_LENGTH 64
mbed_official 0:51ac1d130fd4 93 #define MAX_RESPONSE_LENGTH 64 /* sufficient for MD5 or MS-CHAP */
mbed_official 0:51ac1d130fd4 94
mbed_official 0:51ac1d130fd4 95 /*
mbed_official 0:51ac1d130fd4 96 * Each interface is described by a chap structure.
mbed_official 0:51ac1d130fd4 97 */
mbed_official 0:51ac1d130fd4 98
mbed_official 0:51ac1d130fd4 99 typedef struct chap_state {
mbed_official 0:51ac1d130fd4 100 int unit; /* Interface unit number */
mbed_official 0:51ac1d130fd4 101 int clientstate; /* Client state */
mbed_official 0:51ac1d130fd4 102 int serverstate; /* Server state */
mbed_official 0:51ac1d130fd4 103 u_char challenge[MAX_CHALLENGE_LENGTH]; /* last challenge string sent */
mbed_official 0:51ac1d130fd4 104 u_char chal_len; /* challenge length */
mbed_official 0:51ac1d130fd4 105 u_char chal_id; /* ID of last challenge */
mbed_official 0:51ac1d130fd4 106 u_char chal_type; /* hash algorithm for challenges */
mbed_official 0:51ac1d130fd4 107 u_char id; /* Current id */
mbed_official 0:51ac1d130fd4 108 char *chal_name; /* Our name to use with challenge */
mbed_official 0:51ac1d130fd4 109 int chal_interval; /* Time until we challenge peer again */
mbed_official 0:51ac1d130fd4 110 int timeouttime; /* Timeout time in seconds */
mbed_official 0:51ac1d130fd4 111 int max_transmits; /* Maximum # of challenge transmissions */
mbed_official 0:51ac1d130fd4 112 int chal_transmits; /* Number of transmissions of challenge */
mbed_official 0:51ac1d130fd4 113 int resp_transmits; /* Number of transmissions of response */
mbed_official 0:51ac1d130fd4 114 u_char response[MAX_RESPONSE_LENGTH]; /* Response to send */
mbed_official 0:51ac1d130fd4 115 u_char resp_length; /* length of response */
mbed_official 0:51ac1d130fd4 116 u_char resp_id; /* ID for response messages */
mbed_official 0:51ac1d130fd4 117 u_char resp_type; /* hash algorithm for responses */
mbed_official 0:51ac1d130fd4 118 char *resp_name; /* Our name to send with response */
mbed_official 0:51ac1d130fd4 119 } chap_state;
mbed_official 0:51ac1d130fd4 120
mbed_official 0:51ac1d130fd4 121
mbed_official 0:51ac1d130fd4 122 /*
mbed_official 0:51ac1d130fd4 123 * Client (peer) states.
mbed_official 0:51ac1d130fd4 124 */
mbed_official 0:51ac1d130fd4 125 #define CHAPCS_INITIAL 0 /* Lower layer down, not opened */
mbed_official 0:51ac1d130fd4 126 #define CHAPCS_CLOSED 1 /* Lower layer up, not opened */
mbed_official 0:51ac1d130fd4 127 #define CHAPCS_PENDING 2 /* Auth us to peer when lower up */
mbed_official 0:51ac1d130fd4 128 #define CHAPCS_LISTEN 3 /* Listening for a challenge */
mbed_official 0:51ac1d130fd4 129 #define CHAPCS_RESPONSE 4 /* Sent response, waiting for status */
mbed_official 0:51ac1d130fd4 130 #define CHAPCS_OPEN 5 /* We've received Success */
mbed_official 0:51ac1d130fd4 131
mbed_official 0:51ac1d130fd4 132 /*
mbed_official 0:51ac1d130fd4 133 * Server (authenticator) states.
mbed_official 0:51ac1d130fd4 134 */
mbed_official 0:51ac1d130fd4 135 #define CHAPSS_INITIAL 0 /* Lower layer down, not opened */
mbed_official 0:51ac1d130fd4 136 #define CHAPSS_CLOSED 1 /* Lower layer up, not opened */
mbed_official 0:51ac1d130fd4 137 #define CHAPSS_PENDING 2 /* Auth peer when lower up */
mbed_official 0:51ac1d130fd4 138 #define CHAPSS_INITIAL_CHAL 3 /* We've sent the first challenge */
mbed_official 0:51ac1d130fd4 139 #define CHAPSS_OPEN 4 /* We've sent a Success msg */
mbed_official 0:51ac1d130fd4 140 #define CHAPSS_RECHALLENGE 5 /* We've sent another challenge */
mbed_official 0:51ac1d130fd4 141 #define CHAPSS_BADAUTH 6 /* We've sent a Failure msg */
mbed_official 0:51ac1d130fd4 142
mbed_official 0:51ac1d130fd4 143 extern chap_state chap[];
mbed_official 0:51ac1d130fd4 144
mbed_official 0:51ac1d130fd4 145 void ChapAuthWithPeer (int, char *, u_char);
mbed_official 0:51ac1d130fd4 146 void ChapAuthPeer (int, char *, u_char);
mbed_official 0:51ac1d130fd4 147
mbed_official 0:51ac1d130fd4 148 extern struct protent chap_protent;
mbed_official 0:51ac1d130fd4 149
mbed_official 0:51ac1d130fd4 150 #endif /* CHAP_H */