1 /***************************************************************************** 2 * pap.h - PPP Password Authentication Protocol header file. 3 * 4 * Copyright (c) 2003 by Marc Boucher, Services Informatiques (MBSI) inc. 5 * portions Copyright (c) 1997 Global Election Systems Inc. 6 * 7 * The authors hereby grant permission to use, copy, modify, distribute, 8 * and license this software and its documentation for any purpose, provided 9 * that existing copyright notices are retained in all copies and that this 10 * notice and the following disclaimer are included verbatim in any 11 * distributions. No written agreement, license, or royalty fee is required 12 * for any of the authorized uses. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS *AS IS* AND ANY EXPRESS OR 15 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 16 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 17 * IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 18 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 19 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 20 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 21 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 23 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 * 25 ****************************************************************************** 26 * REVISION HISTORY 27 * 28 * 03-01-01 Marc Boucher <marc@mbsi.ca> 29 * Ported to lwIP. 30 * 97-12-04 Guy Lancaster <glanca@gesn.com>, Global Election Systems Inc. 31 * Original derived from BSD codes. 32 *****************************************************************************/ 33 /* 34 * upap.h - User/Password Authentication Protocol definitions. 35 * 36 * Copyright (c) 1989 Carnegie Mellon University. 37 * All rights reserved. 38 * 39 * Redistribution and use in source and binary forms are permitted 40 * provided that the above copyright notice and this paragraph are 41 * duplicated in all such forms and that any documentation, 42 * advertising materials, and other materials related to such 43 * distribution and use acknowledge that the software was developed 44 * by Carnegie Mellon University. The name of the 45 * University may not be used to endorse or promote products derived 46 * from this software without specific prior written permission. 47 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR 48 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED 49 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. 50 */ 51 52 #ifndef PAP_H 53 #define PAP_H 54 55 #if PAP_SUPPORT /* don't build if not configured for use in lwipopts.h */ 56 57 /* 58 * Packet header = Code, id, length. 59 */ 60 #define UPAP_HEADERLEN (sizeof (u_char) + sizeof (u_char) + sizeof (u_short)) 61 62 63 /* 64 * UPAP codes. 65 */ 66 #define UPAP_AUTHREQ 1 /* Authenticate-Request */ 67 #define UPAP_AUTHACK 2 /* Authenticate-Ack */ 68 #define UPAP_AUTHNAK 3 /* Authenticate-Nak */ 69 70 /* 71 * Each interface is described by upap structure. 72 */ 73 typedef struct upap_state { 74 int us_unit; /* Interface unit number */ 75 const char *us_user; /* User */ 76 int us_userlen; /* User length */ 77 const char *us_passwd; /* Password */ 78 int us_passwdlen; /* Password length */ 79 int us_clientstate; /* Client state */ 80 int us_serverstate; /* Server state */ 81 u_char us_id; /* Current id */ 82 int us_timeouttime; /* Timeout (seconds) for auth-req retrans. */ 83 int us_transmits; /* Number of auth-reqs sent */ 84 int us_maxtransmits; /* Maximum number of auth-reqs to send */ 85 int us_reqtimeout; /* Time to wait for auth-req from peer */ 86 } upap_state; 87 88 /* 89 * Client states. 90 */ 91 #define UPAPCS_INITIAL 0 /* Connection down */ 92 #define UPAPCS_CLOSED 1 /* Connection up, haven't requested auth */ 93 #define UPAPCS_PENDING 2 /* Connection down, have requested auth */ 94 #define UPAPCS_AUTHREQ 3 /* We've sent an Authenticate-Request */ 95 #define UPAPCS_OPEN 4 /* We've received an Ack */ 96 #define UPAPCS_BADAUTH 5 /* We've received a Nak */ 97 98 /* 99 * Server states. 100 */ 101 #define UPAPSS_INITIAL 0 /* Connection down */ 102 #define UPAPSS_CLOSED 1 /* Connection up, haven't requested auth */ 103 #define UPAPSS_PENDING 2 /* Connection down, have requested auth */ 104 #define UPAPSS_LISTEN 3 /* Listening for an Authenticate */ 105 #define UPAPSS_OPEN 4 /* We've sent an Ack */ 106 #define UPAPSS_BADAUTH 5 /* We've sent a Nak */ 107 108 109 extern upap_state upap[]; 110 111 void upap_authwithpeer (int, char *, char *); 112 void upap_authpeer (int); 113 114 extern struct protent pap_protent; 115 116 #endif /* PAP_SUPPORT */ 117 118 #endif /* PAP_H */ 119