opie.h revision 29972 
1/* opie.h: Data structures and values for the OPIE authentication
2	system that a program might need.
3
4%%% portions-copyright-cmetz-96
5Portions of this software are Copyright 1996-1997 by Craig Metz, All Rights
6Reserved. The Inner Net License Version 2 applies to these portions of
7the software.
8You should have received a copy of the license with this software. If
9you didn't get a copy, you may request one from <license@inner.net>.
10
11Portions of this software are Copyright 1995 by Randall Atkinson and Dan
12McDonald, All Rights Reserved. All Rights under this copyright are assigned
13to the U.S. Naval Research Laboratory (NRL). The NRL Copyright Notice and
14License Agreement applies to this software.
15
16	History:
17
18	Modified by cmetz for OPIE 2.31. Removed active attack protection.
19	Modified by cmetz for OPIE 2.3. Renamed PTR to VOIDPTR. Added
20		re-init key and extension file fields to struct opie. Added
21		opie_ prefix on struct opie members. Added opie_flags field
22		and definitions. Added more prototypes. Changed opiehash()
23		prototype.
24	Modified by cmetz for OPIE 2.22. Define __P correctly if this file
25		is included in a third-party program.
26	Modified by cmetz for OPIE 2.2. Re-did prototypes. Added FUNCTION
27                definition et al. Multiple-include protection. Added struct
28		utsname fake. Got rid of gethostname() cruft. Moved UINT4
29                here. Provide for *seek whence values. Move MDx context here
30                and unify. Re-did prototypes.
31	Modified at NRL for OPIE 2.0.
32	Written at Bellcore for the S/Key Version 1 software distribution
33		(skey.h).
34*/
35#ifndef _OPIE_H
36#define _OPIE_H 1
37
38struct opie {
39  int opie_flags;
40  char opie_buf[256];
41  char *opie_principal;
42  int opie_n;
43  char *opie_seed;
44  char *opie_val;
45  long opie_recstart;
46};
47
48#define __OPIE_FLAGS_RW 1
49#define __OPIE_FLAGS_READ 2
50
51/* Minimum length of a secret password */
52#define OPIE_SECRET_MIN 10
53
54/* Maximum length of a secret password */
55#define OPIE_SECRET_MAX 127
56
57/* Minimum length of a seed */
58#define OPIE_SEED_MIN 5
59
60/* Maximum length of a seed */
61#define OPIE_SEED_MAX 16
62
63/* Maximum length of a challenge (otp-md? 9999 seed) */
64#define OPIE_CHALLENGE_MAX (7+1+4+1+OPIE_SEED_MAX)
65
66/* Maximum length of a response that we allow */
67#define OPIE_RESPONSE_MAX (9+1+19+1+9+OPIE_SEED_MAX+1+19+1+19+1+19)
68
69/* Maximum length of a principal (read: user name) */
70#define OPIE_PRINCIPAL_MAX 32
71
72#include <sys/cdefs.h>
73
74__BEGIN_DECLS
75int  opieaccessfile __P((char *));
76int  rdnets __P((long));
77int  isaddr __P((register char *));
78int  opiealways __P((char *));
79char *opieatob8 __P((char *,char *));
80void opiebackspace __P((char *));
81char *opiebtoa8 __P((char *,char *));
82char *opiebtoe __P((char *,char *));
83char *opiebtoh __P((char *,char *));
84int  opieetob __P((char *,char *));
85int  opiechallenge __P((struct opie *,char *,char *));
86int  opiegenerator __P((char *,char *,char *));
87int  opiegetsequence __P((struct opie *));
88void opiehash __P((void *, unsigned));
89int  opiehtoi __P((register char));
90int  opiekeycrunch __P((int, char *, char *, char *));
91int  opielock __P((char *));
92int  opielookup __P((struct opie *,char *));
93int  opiepasscheck __P((char *));
94void opierandomchallenge __P((char *));
95char * opieskipspace __P((register char *));
96void opiestripcrlf __P((char *));
97int  opieverify __P((struct opie *,char *));
98int opiepasswd __P((struct opie *, int, char *, int, char *, char *));
99char *opiereadpass __P((char *, int, int));
100int opielogin __P((char *line, char *name, char *host));
101__END_DECLS
102
103#if _OPIE
104#define VOIDPTR void *
105#define VOIDRET void
106#define NOARGS  void
107#define FUNCTION(arglist, args) (args)
108#define AND ,
109#define FUNCTION_NOARGS ()
110#define UINT4 u_int32_t
111
112__BEGIN_DECLS
113struct utmp;
114int __opiegetutmpentry __P((char *, struct utmp *));
115#ifdef EOF
116FILE *__opieopen __P((char *, int, int));
117#endif /* EOF */
118int __opiereadrec __P((struct opie *));
119int __opiewriterec __P((struct opie *));
120__END_DECLS
121#endif /* _OPIE */
122#endif /* _OPIE_H */
123