contrib/opie/opie.h

   1 /* opie.h: Data structures and values for the OPIE authentication
   2         system that a program might need.
   3
   4 %%% portions-copyright-cmetz-96
   5 Portions of this software are Copyright 1996-1999 by Craig Metz, All Rights
   6 Reserved. The Inner Net License Version 2 applies to these portions of
   7 the software.
   8 You should have received a copy of the license with this software. If
   9 you didn't get a copy, you may request one from <license@inner.net>.
  10
  11 Portions of this software are Copyright 1995 by Randall Atkinson and Dan
  12 McDonald, All Rights Reserved. All Rights under this copyright are assigned
  13 to the U.S. Naval Research Laboratory (NRL). The NRL Copyright Notice and
  14 License Agreement applies to this software.
  15
  16         History:
  17
  18         Modified by cmetz for OPIE 2.4. Added sequence number limits. Added
  19                 struct opie_otpkey and made many functions use it. Added
  20                 opiestrncpy(). Include header with libmissing prototypes.
  21         Modified by cmetz for OPIE 2.32. Added symbolic flag names for
  22                 opiepasswd(). Added __opieparsechallenge() prototype.
  23         Modified by cmetz for OPIE 2.31. Removed active attack protection.
  24         Modified by cmetz for OPIE 2.3. Renamed PTR to VOIDPTR. Added
  25                 re-init key and extension file fields to struct opie. Added
  26                 opie_ prefix on struct opie members. Added opie_flags field
  27                 and definitions. Added more prototypes. Changed opiehash()
  28                 prototype.
  29         Modified by cmetz for OPIE 2.22. Define __P correctly if this file
  30                 is included in a third-party program.
  31         Modified by cmetz for OPIE 2.2. Re-did prototypes. Added FUNCTION
  32                 definition et al. Multiple-include protection. Added struct
  33                 utsname fake. Got rid of gethostname() cruft. Moved UINT4
  34                 here. Provide for *seek whence values. Move MDx context here
  35                 and unify. Re-did prototypes.
  36         Modified at NRL for OPIE 2.0.
  37         Written at Bellcore for the S/Key Version 1 software distribution
  38                 (skey.h).
  39
  40 $FreeBSD: src/contrib/opie/opie.h,v 1.4.6.4 2002/07/15 14:48:43 des Exp $
  41 $DragonFly: src/contrib/opie/opie.h,v 1.2 2003/06/17 06:24:04 dillon Exp $
  42 */
  43 #ifndef _OPIE_H
  44 #define _OPIE_H 1
  45
  46 struct opie {
  47   int opie_flags;
  48   char opie_buf[256];
  49   char *opie_principal;
  50   int opie_n;
  51   char *opie_seed;
  52   char *opie_val;
  53   long opie_recstart;
  54 };
  55
  56 #define __OPIE_FLAGS_RW 1
  57 #define __OPIE_FLAGS_READ 2
  58
  59 /* Minimum length of a secret password */
  60 #ifndef OPIE_SECRET_MIN
  61 #define OPIE_SECRET_MIN 10
  62 #endif  /* OPIE_SECRET_MIN */
  63
  64 /* Maximum length of a secret password */
  65 #define OPIE_SECRET_MAX 127
  66
  67 /* Minimum length of a seed */
  68 #define OPIE_SEED_MIN 5
  69
  70 /* Maximum length of a seed */
  71 #define OPIE_SEED_MAX 16
  72
  73 /* Max length of hash algorithm name (md4/md5) */
  74 #define OPIE_HASHNAME_MAX 3
  75
  76 /* Maximum length of a challenge (otp-md? 9999 seed) */
  77 #define OPIE_CHALLENGE_MAX (4+OPIE_HASHNAME_MAX+1+4+1+OPIE_SEED_MAX)
  78
  79 /* Maximum length of a response that we allow */
  80 #define OPIE_RESPONSE_MAX (9+1+19+1+9+OPIE_SEED_MAX+1+19+1+19+1+19)
  81
  82 /* Maximum length of a principal (read: user name) */
  83 #define OPIE_PRINCIPAL_MAX 32
  84
  85 /* Maximum sequence number */
  86 #ifndef OPIE_SEQUENCE_MAX
  87 #define OPIE_SEQUENCE_MAX 9999
  88 #endif /* OPIE_SEQUENCE_MAX */
  89
  90 /* Restricted sequence number */
  91 #ifndef OPIE_SEQUENCE_RESTRICT
  92 #define OPIE_SEQUENCE_RESTRICT 9
  93 #endif /* OPIE_SEQUENCE_RESTRICT */
  94
  95 #define UINT4 u_int32_t
  96
  97 struct opie_otpkey {
  98         UINT4 words[2];
  99 };
 100
 101 #ifndef SEEK_SET
 102 #define SEEK_SET 0
 103 #endif /* SEEK_SET */
 104
 105 #ifndef SEEK_END
 106 #define SEEK_END 2
 107 #endif /* SEEK_END */
 108
 109 __BEGIN_DECLS
 110 int  opieaccessfile __P((char *));
 111 int  rdnets __P((long));
 112 int  isaddr __P((register char *));
 113 int  opiealways __P((char *));
 114 char *opieatob8 __P((struct opie_otpkey *, char *));
 115 void opiebackspace __P((char *));
 116 char *opiebtoa8 __P((char *, struct opie_otpkey *));
 117 char *opiebtoe __P((char *, struct opie_otpkey *));
 118 char *opiebtoh __P((char *, struct opie_otpkey *));
 119 int  opieetob __P((struct opie_otpkey *, char *));
 120 int  opiechallenge __P((struct opie *,char *,char *));
 121 int  opiegenerator __P((char *,char *,char *));
 122 int  opiegetsequence __P((struct opie *));
 123 void opiehash __P((struct opie_otpkey *, unsigned));
 124 int  opiehtoi __P((register char));
 125 int  opiekeycrunch __P((int, struct opie_otpkey *, char *, char *));
 126 int  opielock __P((char *));
 127 int  opieunlock __P((void));
 128 void opieunlockaeh __P((void));
 129 void opiedisableaeh __P((void));
 130 int  opielookup __P((struct opie *,char *));
 131 int  opiepasscheck __P((char *));
 132 void opierandomchallenge __P((char *));
 133 char * opieskipspace __P((register char *));
 134 void opiestripcrlf __P((char *));
 135 int  opieverify __P((struct opie *,char *));
 136 int opiepasswd __P((struct opie *, int, char *, int, char *, char *));
 137 char *opiereadpass __P((char *, int, int));
 138 int opielogin __P((char *line, char *name, char *host));
 139 const char *opie_get_algorithm __P((void));
 140 int  opie_haskey __P((char *username));
 141 char *opie_keyinfo __P((char *));
 142 int  opie_passverify __P((char *username, char *passwd));
 143 __END_DECLS
 144
 145 #if _OPIE
 146 #define VOIDPTR void *
 147 #define VOIDRET void
 148 #define NOARGS  void
 149 #define FUNCTION(arglist, args) (args)
 150 #define AND ,
 151 #define FUNCTION_NOARGS ()
 152
 153 __BEGIN_DECLS
 154 struct utmp;
 155 int __opiegetutmpentry __P((char *, struct utmp *));
 156 #ifdef EOF
 157 FILE *__opieopen __P((char *, int, int));
 158 #endif /* EOF */
 159 int __opiereadrec __P((struct opie *));
 160 int __opiewriterec __P((struct opie *));
 161 int __opieparsechallenge __P((char *buffer, int *algorithm, int *sequence, char **seed, int *exts));
 162 __END_DECLS
 163
 164 #define opiestrncpy(dst, src, n) \
 165   do { \
 166     strncpy(dst, src, n-1); \
 167     dst[n-1] = 0; \
 168   } while(0)
 169
 170 /* #include "missing.h" */
 171 #endif /* _OPIE */
 172
 173 #define OPIEPASSWD_CONSOLE 1
 174 #define OPIEPASSWD_FORCE   2
 175
 176 #endif /* _OPIE_H */