1 /* $OpenBSD: upap.h,v 1.6 2002/07/01 19:31:37 deraadt Exp $ */ 2 3 /* 4 * upap.h - User/Password Authentication Protocol definitions. 5 * 6 * Copyright (c) 1984-2000 Carnegie Mellon University. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in 17 * the documentation and/or other materials provided with the 18 * distribution. 19 * 20 * 3. The name "Carnegie Mellon University" must not be used to 21 * endorse or promote products derived from this software without 22 * prior written permission. For permission or any legal 23 * details, please contact 24 * Office of Technology Transfer 25 * Carnegie Mellon University 26 * 5000 Forbes Avenue 27 * Pittsburgh, PA 15213-3890 28 * (412) 268-4387, fax: (412) 268-7395 29 * tech-transfer@andrew.cmu.edu 30 * 31 * 4. Redistributions of any form whatsoever must retain the following 32 * acknowledgment: 33 * "This product includes software developed by Computing Services 34 * at Carnegie Mellon University (http://www.cmu.edu/computing/)." 35 * 36 * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO 37 * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY 38 * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE 39 * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 40 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN 41 * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING 42 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 43 */ 44 45 /* 46 * Packet header = Code, id, length. 47 */ 48 #define UPAP_HEADERLEN (sizeof (u_char) + sizeof (u_char) + sizeof (u_short)) 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(int, char *, char *); 108 void upap_authpeer(int); 109 110 extern struct protent pap_protent; 111