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pap.h
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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 */
UCHAR u_char
Definition: types.h:80