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1 office 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 */