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2a905848 RG |
1 | /* |
2 | * upap.h - User/Password Authentication Protocol definitions. | |
3 | * | |
4 | * Copyright (c) 1989 Carnegie Mellon University. | |
5 | * All rights reserved. | |
6 | * | |
7 | * Redistribution and use in source and binary forms are permitted | |
8 | * provided that the above copyright notice and this paragraph are | |
9 | * duplicated in all such forms and that any documentation, | |
10 | * advertising materials, and other materials related to such | |
11 | * distribution and use acknowledge that the software was developed | |
12 | * by Carnegie Mellon University. The name of the | |
13 | * University may not be used to endorse or promote products derived | |
14 | * from this software without specific prior written permission. | |
15 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR | |
16 | * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED | |
17 | * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE. | |
18 | */ | |
19 | ||
20 | /* | |
21 | * Packet header = Code, id, length. | |
22 | */ | |
23 | #define UPAP_HEADERLEN (sizeof (u_char) + sizeof (u_char) + sizeof (u_short)) | |
24 | ||
25 | ||
26 | /* | |
27 | * UPAP codes. | |
28 | */ | |
29 | #define UPAP_AUTH 1 /* Authenticate */ | |
30 | #define UPAP_AUTHACK 2 /* Authenticate Ack */ | |
31 | #define UPAP_AUTHNAK 3 /* Authenticate Nak */ | |
32 | ||
33 | ||
34 | /* | |
35 | * Each interface is described by upap structure. | |
36 | */ | |
37 | typedef struct upap_state { | |
38 | int us_unit; /* Interface unit number */ | |
39 | char *us_user; /* User */ | |
40 | int us_userlen; /* User length */ | |
41 | char *us_passwd; /* Password */ | |
42 | int us_passwdlen; /* Password length */ | |
43 | int us_clientstate; /* Client state */ | |
44 | int us_serverstate; /* Server state */ | |
45 | int us_flags; /* Flags */ | |
46 | u_char us_id; /* Current id */ | |
47 | int us_timeouttime; /* Timeout time in milliseconds */ | |
48 | int us_retransmits; /* Number of retransmissions */ | |
49 | } upap_state; | |
50 | ||
51 | ||
52 | /* | |
53 | * Client states. | |
54 | */ | |
55 | #define UPAPCS_CLOSED 1 /* Connection down */ | |
56 | #define UPAPCS_AUTHSENT 2 /* We've sent an Authenticate */ | |
57 | #define UPAPCS_OPEN 3 /* We've received an Ack */ | |
58 | ||
59 | /* | |
60 | * Server states. | |
61 | */ | |
62 | #define UPAPSS_CLOSED 1 /* Connection down */ | |
63 | #define UPAPSS_LISTEN 2 /* Listening for an Authenticate */ | |
64 | #define UPAPSS_OPEN 3 /* We've sent an Ack */ | |
65 | ||
66 | /* | |
67 | * Flags. | |
68 | */ | |
69 | #define UPAPF_LOWERUP 1 /* The lower level is UP */ | |
70 | #define UPAPF_AWPPENDING 2 /* Auth with peer pending */ | |
71 | #define UPAPF_APPENDING 4 /* Auth peer pending */ | |
72 | #define UPAPF_UPVALID 8 /* User/passwd values valid */ | |
73 | #define UPAPF_UPPENDING 0x10 /* User/passwd values pending */ | |
74 | ||
75 | ||
76 | /* | |
77 | * Timeouts. | |
78 | */ | |
79 | #define UPAP_DEFTIMEOUT 3 /* Timeout time in seconds */ | |
80 | ||
81 | ||
82 | extern upap_state upap[]; | |
83 | ||
84 | void upap_init __ARGS((int)); | |
85 | void upap_authwithpeer __ARGS((int)); | |
86 | void upap_authpeer __ARGS((int)); | |
87 | void upap_lowerup __ARGS((int)); | |
88 | void upap_lowerdown __ARGS((int)); | |
89 | void upap_input __ARGS((int, u_char *, int)); | |
90 | void upap_protrej __ARGS((int)); |