pppd/upap.h

   1 /*
   2  * upap.h - User/Password Authentication Protocol definitions.
   3  *
   4  * Copyright (c) 1984-2000 Carnegie Mellon University. All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in
  15  *    the documentation and/or other materials provided with the
  16  *    distribution.
  17  *
  18  * 3. The name "Carnegie Mellon University" must not be used to
  19  *    endorse or promote products derived from this software without
  20  *    prior written permission. For permission or any legal
  21  *    details, please contact
  22  *      Office of Technology Transfer
  23  *      Carnegie Mellon University
  24  *      5000 Forbes Avenue
  25  *      Pittsburgh, PA  15213-3890
  26  *      (412) 268-4387, fax: (412) 268-7395
  27  *      tech-transfer@andrew.cmu.edu
  28  *
  29  * 4. Redistributions of any form whatsoever must retain the following
  30  *    acknowledgment:
  31  *    "This product includes software developed by Computing Services
  32  *     at Carnegie Mellon University (http://www.cmu.edu/computing/)."
  33  *
  34  * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO
  35  * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
  36  * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE
  37  * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  38  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
  39  * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
  40  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  41  *
  42  * $Id: upap.h,v 1.8 2002/12/04 23:03:33 paulus Exp $
  43  */
  44
  45 /*
  46  * Packet header = Code, id, length.
  47  */
  48 #define UPAP_HEADERLEN  4
  49
  50
  51 /*
  52  * UPAP codes.
  53  */
  54 #define UPAP_AUTHREQ    1       /* Authenticate-Request */
  55 #define UPAP_AUTHACK    2       /* Authenticate-Ack */
  56 #define UPAP_AUTHNAK    3       /* Authenticate-Nak */
  57
  58
  59 /*
  60  * Each interface is described by upap structure.
  61  */
  62 typedef struct upap_state {
  63     int us_unit;                /* Interface unit number */
  64     char *us_user;              /* User */
  65     int us_userlen;             /* User length */
  66     char *us_passwd;            /* Password */
  67     int us_passwdlen;           /* Password length */
  68     int us_clientstate;         /* Client state */
  69     int us_serverstate;         /* Server state */
  70     u_char us_id;               /* Current id */
  71     int us_timeouttime;         /* Timeout (seconds) for auth-req retrans. */
  72     int us_transmits;           /* Number of auth-reqs sent */
  73     int us_maxtransmits;        /* Maximum number of auth-reqs to send */
  74     int us_reqtimeout;          /* Time to wait for auth-req from peer */
  75 } upap_state;
  76
  77
  78 /*
  79  * Client states.
  80  */
  81 #define UPAPCS_INITIAL  0       /* Connection down */
  82 #define UPAPCS_CLOSED   1       /* Connection up, haven't requested auth */
  83 #define UPAPCS_PENDING  2       /* Connection down, have requested auth */
  84 #define UPAPCS_AUTHREQ  3       /* We've sent an Authenticate-Request */
  85 #define UPAPCS_OPEN     4       /* We've received an Ack */
  86 #define UPAPCS_BADAUTH  5       /* We've received a Nak */
  87
  88 /*
  89  * Server states.
  90  */
  91 #define UPAPSS_INITIAL  0       /* Connection down */
  92 #define UPAPSS_CLOSED   1       /* Connection up, haven't requested auth */
  93 #define UPAPSS_PENDING  2       /* Connection down, have requested auth */
  94 #define UPAPSS_LISTEN   3       /* Listening for an Authenticate */
  95 #define UPAPSS_OPEN     4       /* We've sent an Ack */
  96 #define UPAPSS_BADAUTH  5       /* We've sent a Nak */
  97
  98
  99 /*
 100  * Timeouts.
 101  */
 102 #define UPAP_DEFTIMEOUT 3       /* Timeout (seconds) for retransmitting req */
 103 #define UPAP_DEFREQTIME 30      /* Time to wait for auth-req from peer */
 104
 105 extern upap_state upap[];
 106
 107 void upap_authwithpeer __P((int, char *, char *));
 108 void upap_authpeer __P((int));
 109
 110 extern struct protent pap_protent;