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skey.h revision 1.9 
      1  1.9    perry /*	$NetBSD: skey.h,v 1.9 2005/02/04 16:12:13 perry Exp $	*/
      2  1.3  thorpej 
      3  1.1  deraadt /*
      4  1.1  deraadt  * S/KEY v1.1b (skey.h)
      5  1.1  deraadt  *
      6  1.1  deraadt  * Authors:
      7  1.1  deraadt  *          Neil M. Haller <nmh (at) thumper.bellcore.com>
      8  1.1  deraadt  *          Philip R. Karn <karn (at) chicago.qualcomm.com>
      9  1.1  deraadt  *          John S. Walden <jsw (at) thumper.bellcore.com>
     10  1.1  deraadt  *
     11  1.1  deraadt  * Modifications:
     12  1.1  deraadt  *          Scott Chasin <chasin (at) crimelab.com>
     13  1.7      mjl  *          Todd C. Miller <Todd.Miller (at) courtesan.com>
     14  1.1  deraadt  *
     15  1.1  deraadt  * Main client header
     16  1.1  deraadt  */
     17  1.1  deraadt 
     18  1.1  deraadt /* Server-side data structure for reading keys file during login */
     19  1.9    perry struct skey {
     20  1.1  deraadt   FILE *keyfile;
     21  1.1  deraadt   char buf[256];
     22  1.1  deraadt   char *logname;
     23  1.1  deraadt   int n;
     24  1.1  deraadt   char *seed;
     25  1.1  deraadt   char *val;
     26  1.1  deraadt   long recstart;		/* needed so reread of buffer is efficient */
     27  1.1  deraadt };
     28  1.1  deraadt 
     29  1.1  deraadt /* Client-side structure for scanning data stream for challenge */
     30  1.9    perry struct mc {
     31  1.1  deraadt   char buf[256];
     32  1.1  deraadt   int skip;
     33  1.1  deraadt   int cnt;
     34  1.1  deraadt };
     35  1.1  deraadt 
     36  1.7      mjl /* Maximum sequence number we allow */
     37  1.7      mjl #ifndef SKEY_MAX_SEQ
     38  1.9    perry #define SKEY_MAX_SEQ		10000
     39  1.7      mjl #endif
     40  1.7      mjl 
     41  1.7      mjl /* Minimum secret password length (rfc2289) */
     42  1.7      mjl #ifndef SKEY_MIN_PW_LEN
     43  1.9    perry #define SKEY_MIN_PW_LEN		10
     44  1.7      mjl #endif
     45  1.7      mjl 
     46  1.7      mjl /* Max secret password length (rfc2289 says 63 but allows more) */
     47  1.7      mjl #ifndef SKEY_MAX_PW_LEN
     48  1.9    perry #define SKEY_MAX_PW_LEN		255
     49  1.7      mjl #endif
     50  1.7      mjl 
     51  1.7      mjl /* Max length of an S/Key seed (rfc2289) */
     52  1.7      mjl #ifndef SKEY_MAX_SEED_LEN
     53  1.9    perry #define SKEY_MAX_SEED_LEN	16
     54  1.7      mjl #endif
     55  1.7      mjl 
     56  1.7      mjl /* Max length of S/Key challenge (otp-???? 9999 seed) */
     57  1.7      mjl #ifndef SKEY_MAX_CHALLENGE
     58  1.9    perry #define SKEY_MAX_CHALLENGE     (11 + SKEY_MAX_HASHNAME_LEN + SKEY_MAX_SEED_LEN)
     59  1.7      mjl #endif
     60  1.7      mjl 
     61  1.7      mjl /* Max length of hash algorithm name (md4/md5/sha1/rmd160) */
     62  1.9    perry #define SKEY_MAX_HASHNAME_LEN	6
     63  1.7      mjl 
     64  1.7      mjl /* Size of a binary key (not NULL-terminated) */
     65  1.9    perry #define SKEY_BINKEY_SIZE	8
     66  1.7      mjl 
     67  1.7      mjl /* Location of random file for bogus challenges */
     68  1.9    perry #define _SKEY_RAND_FILE_PATH_	"/var/db/host.random"
     69  1.2       pk 
     70  1.7      mjl /* Prototypes */
     71  1.9    perry void f(char *);
     72  1.9    perry int keycrunch(char *, const char *, const char *);
     73  1.9    perry char *btoe(char *, const char *);
     74  1.9    perry char *put8(char *, const char *);
     75  1.9    perry int etob(char *, const char *);
     76  1.9    perry void rip(char *);
     77  1.9    perry int skeychallenge(struct skey *, const char *, char *, size_t);
     78  1.9    perry int skeylookup(struct skey *, const char *);
     79  1.9    perry int skeyverify(struct skey *, char *);
     80  1.9    perry void sevenbit(char *);
     81  1.9    perry void backspace(char *);
     82  1.9    perry const char *skipspace(const char *);
     83  1.9    perry char *readpass(char *, int);
     84  1.9    perry char *readskey(char *, int);
     85  1.9    perry int skey_authenticate(const char *);
     86  1.9    perry int skey_passcheck(const char *, char *);
     87  1.9    perry const char *skey_keyinfo(const char *);
     88  1.9    perry int skey_haskey(const char *);
     89  1.9    perry int getskeyprompt(struct skey *, char *, char *);
     90  1.9    perry int atob8(char *, const char *);
     91  1.9    perry int btoa8(char *, const char *);
     92  1.9    perry int htoi(int);
     93  1.9    perry const char *skey_get_algorithm(void);
     94  1.9    perry const char *skey_set_algorithm(const char *);
     95  1.9    perry int skeygetnext(struct skey *);
     96  1.9    perry int skeyzero(struct skey *, char *);
     97