The Pedigree Project  0.1
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 #include "netif/ppp/ppp_opts.h"
46 #if PPP_SUPPORT && PAP_SUPPORT /* don't build if not configured for use in lwipopts.h */
47 
48 #ifndef UPAP_H
49 #define UPAP_H
50 
51 #include "ppp.h"
52 
53 /*
54  * Packet header = Code, id, length.
55  */
56 #define UPAP_HEADERLEN 4
57 
58 
59 /*
60  * UPAP codes.
61  */
62 #define UPAP_AUTHREQ 1 /* Authenticate-Request */
63 #define UPAP_AUTHACK 2 /* Authenticate-Ack */
64 #define UPAP_AUTHNAK 3 /* Authenticate-Nak */
65 
66 
67 /*
68  * Client states.
69  */
70 #define UPAPCS_INITIAL 0 /* Connection down */
71 #define UPAPCS_CLOSED 1 /* Connection up, haven't requested auth */
72 #define UPAPCS_PENDING 2 /* Connection down, have requested auth */
73 #define UPAPCS_AUTHREQ 3 /* We've sent an Authenticate-Request */
74 #define UPAPCS_OPEN 4 /* We've received an Ack */
75 #define UPAPCS_BADAUTH 5 /* We've received a Nak */
76 
77 /*
78  * Server states.
79  */
80 #define UPAPSS_INITIAL 0 /* Connection down */
81 #define UPAPSS_CLOSED 1 /* Connection up, haven't requested auth */
82 #define UPAPSS_PENDING 2 /* Connection down, have requested auth */
83 #define UPAPSS_LISTEN 3 /* Listening for an Authenticate */
84 #define UPAPSS_OPEN 4 /* We've sent an Ack */
85 #define UPAPSS_BADAUTH 5 /* We've sent a Nak */
86 
87 
88 /*
89  * Timeouts.
90  */
91 #if 0 /* moved to ppp_opts.h */
92 #define UPAP_DEFTIMEOUT 3 /* Timeout (seconds) for retransmitting req */
93 #define UPAP_DEFREQTIME 30 /* Time to wait for auth-req from peer */
94 #endif /* moved to ppp_opts.h */
95 
96 /*
97  * Each interface is described by upap structure.
98  */
99 #if PAP_SUPPORT
100 typedef struct upap_state {
101  const char *us_user; /* User */
102  u8_t us_userlen; /* User length */
103  const char *us_passwd; /* Password */
104  u8_t us_passwdlen; /* Password length */
105  u8_t us_clientstate; /* Client state */
106 #if PPP_SERVER
107  u8_t us_serverstate; /* Server state */
108 #endif /* PPP_SERVER */
109  u8_t us_id; /* Current id */
110  u8_t us_transmits; /* Number of auth-reqs sent */
111 } upap_state;
112 #endif /* PAP_SUPPORT */
113 
114 
115 void upap_authwithpeer(ppp_pcb *pcb, const char *user, const char *password);
116 #if PPP_SERVER
117 void upap_authpeer(ppp_pcb *pcb);
118 #endif /* PPP_SERVER */
119 
120 extern const struct protent pap_protent;
121 
122 #endif /* UPAP_H */
123 #endif /* PPP_SUPPORT && PAP_SUPPORT */
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