[164] | 1 | /*****************************************************************************
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| 2 | * pap.h - PPP Password Authentication Protocol header file.
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| 3 | *
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| 4 | * Copyright (c) 2003 by Marc Boucher, Services Informatiques (MBSI) inc.
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| 5 | * portions Copyright (c) 1997 Global Election Systems Inc.
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| 6 | *
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| 7 | * The authors hereby grant permission to use, copy, modify, distribute,
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| 8 | * and license this software and its documentation for any purpose, provided
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| 9 | * that existing copyright notices are retained in all copies and that this
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| 10 | * notice and the following disclaimer are included verbatim in any
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| 11 | * distributions. No written agreement, license, or royalty fee is required
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| 12 | * for any of the authorized uses.
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| 13 | *
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| 14 | * THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS *AS IS* AND ANY EXPRESS OR
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| 15 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 16 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 17 | * IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 18 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 19 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 20 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 21 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 22 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 23 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 24 | *
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| 25 | ******************************************************************************
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| 26 | * REVISION HISTORY
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| 27 | *
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| 28 | * 03-01-01 Marc Boucher <marc@mbsi.ca>
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| 29 | * Ported to lwIP.
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| 30 | * 97-12-04 Guy Lancaster <glanca@gesn.com>, Global Election Systems Inc.
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| 31 | * Original derived from BSD codes.
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| 32 | *****************************************************************************/
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| 33 | /*
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| 34 | * upap.h - User/Password Authentication Protocol definitions.
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| 35 | *
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| 36 | * Copyright (c) 1989 Carnegie Mellon University.
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| 37 | * All rights reserved.
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| 38 | *
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| 39 | * Redistribution and use in source and binary forms are permitted
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| 40 | * provided that the above copyright notice and this paragraph are
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| 41 | * duplicated in all such forms and that any documentation,
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| 42 | * advertising materials, and other materials related to such
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| 43 | * distribution and use acknowledge that the software was developed
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| 44 | * by Carnegie Mellon University. The name of the
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| 45 | * University may not be used to endorse or promote products derived
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| 46 | * from this software without specific prior written permission.
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| 47 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
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| 48 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
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| 49 | * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
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| 50 | */
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| 51 |
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| 52 | #ifndef PAP_H
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| 53 | #define PAP_H
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| 54 |
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| 55 | #if PAP_SUPPORT /* don't build if not configured for use in lwipopts.h */
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| 56 |
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| 57 | /*
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| 58 | * Packet header = Code, id, length.
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| 59 | */
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| 60 | #define UPAP_HEADERLEN (sizeof (u_char) + sizeof (u_char) + sizeof (u_short))
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| 61 |
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| 62 |
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| 63 | /*
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| 64 | * UPAP codes.
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| 65 | */
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| 66 | #define UPAP_AUTHREQ 1 /* Authenticate-Request */
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| 67 | #define UPAP_AUTHACK 2 /* Authenticate-Ack */
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| 68 | #define UPAP_AUTHNAK 3 /* Authenticate-Nak */
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| 69 |
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| 70 | /*
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| 71 | * Each interface is described by upap structure.
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| 72 | */
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| 73 | typedef struct upap_state {
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| 74 | int us_unit; /* Interface unit number */
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| 75 | const char *us_user; /* User */
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| 76 | int us_userlen; /* User length */
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| 77 | const char *us_passwd; /* Password */
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| 78 | int us_passwdlen; /* Password length */
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| 79 | int us_clientstate; /* Client state */
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| 80 | int us_serverstate; /* Server state */
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| 81 | u_char us_id; /* Current id */
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| 82 | int us_timeouttime; /* Timeout (seconds) for auth-req retrans. */
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| 83 | int us_transmits; /* Number of auth-reqs sent */
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| 84 | int us_maxtransmits; /* Maximum number of auth-reqs to send */
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| 85 | int us_reqtimeout; /* Time to wait for auth-req from peer */
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| 86 | } upap_state;
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| 87 |
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| 88 | /*
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| 89 | * Client states.
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| 90 | */
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| 91 | #define UPAPCS_INITIAL 0 /* Connection down */
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| 92 | #define UPAPCS_CLOSED 1 /* Connection up, haven't requested auth */
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| 93 | #define UPAPCS_PENDING 2 /* Connection down, have requested auth */
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| 94 | #define UPAPCS_AUTHREQ 3 /* We've sent an Authenticate-Request */
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| 95 | #define UPAPCS_OPEN 4 /* We've received an Ack */
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| 96 | #define UPAPCS_BADAUTH 5 /* We've received a Nak */
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| 97 |
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| 98 | /*
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| 99 | * Server states.
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| 100 | */
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| 101 | #define UPAPSS_INITIAL 0 /* Connection down */
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| 102 | #define UPAPSS_CLOSED 1 /* Connection up, haven't requested auth */
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| 103 | #define UPAPSS_PENDING 2 /* Connection down, have requested auth */
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| 104 | #define UPAPSS_LISTEN 3 /* Listening for an Authenticate */
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| 105 | #define UPAPSS_OPEN 4 /* We've sent an Ack */
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| 106 | #define UPAPSS_BADAUTH 5 /* We've sent a Nak */
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| 107 |
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| 108 |
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| 109 | extern upap_state upap[];
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| 110 |
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| 111 | void upap_authwithpeer (int, char *, char *);
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| 112 | void upap_authpeer (int);
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| 113 |
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| 114 | extern struct protent pap_protent;
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| 115 |
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| 116 | #endif /* PAP_SUPPORT */
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| 117 |
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| 118 | #endif /* PAP_H */
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