NetBSD/lib/libskey/skey.h

99 lines
2.7 KiB
C

/* $NetBSD: skey.h,v 1.8 2000/07/28 16:35:11 thorpej Exp $ */
/*
* S/KEY v1.1b (skey.h)
*
* Authors:
* Neil M. Haller <nmh@thumper.bellcore.com>
* Philip R. Karn <karn@chicago.qualcomm.com>
* John S. Walden <jsw@thumper.bellcore.com>
*
* Modifications:
* Scott Chasin <chasin@crimelab.com>
* Todd C. Miller <Todd.Miller@courtesan.com>
*
* Main client header
*/
/* Server-side data structure for reading keys file during login */
struct skey
{
FILE *keyfile;
char buf[256];
char *logname;
int n;
char *seed;
char *val;
long recstart; /* needed so reread of buffer is efficient */
};
/* Client-side structure for scanning data stream for challenge */
struct mc
{
char buf[256];
int skip;
int cnt;
};
/* Maximum sequence number we allow */
#ifndef SKEY_MAX_SEQ
#define SKEY_MAX_SEQ 10000
#endif
/* Minimum secret password length (rfc2289) */
#ifndef SKEY_MIN_PW_LEN
#define SKEY_MIN_PW_LEN 10
#endif
/* Max secret password length (rfc2289 says 63 but allows more) */
#ifndef SKEY_MAX_PW_LEN
#define SKEY_MAX_PW_LEN 255
#endif
/* Max length of an S/Key seed (rfc2289) */
#ifndef SKEY_MAX_SEED_LEN
#define SKEY_MAX_SEED_LEN 16
#endif
/* Max length of S/Key challenge (otp-???? 9999 seed) */
#ifndef SKEY_MAX_CHALLENGE
#define SKEY_MAX_CHALLENGE (11 + SKEY_MAX_HASHNAME_LEN + SKEY_MAX_SEED_LEN)
#endif
/* Max length of hash algorithm name (md4/md5/sha1/rmd160) */
#define SKEY_MAX_HASHNAME_LEN 6
/* Size of a binary key (not NULL-terminated) */
#define SKEY_BINKEY_SIZE 8
/* Location of random file for bogus challenges */
#define _SKEY_RAND_FILE_PATH_ "/var/db/host.random"
/* Prototypes */
void f __P ((char *));
int keycrunch __P ((char *, const char *, const char *));
char *btoe __P ((char *, const char *));
char *put8 __P ((char *, const char *));
int etob __P ((char *, const char *));
void rip __P ((char *));
int skeychallenge __P ((struct skey *, const char *, char *, size_t));
int skeylookup __P ((struct skey *, const char *));
int skeyverify __P ((struct skey *, char *));
void sevenbit __P ((char *));
void backspace __P ((char *));
const char *skipspace __P ((const char *));
char *readpass __P ((char *, int));
char *readskey __P ((char *, int));
int skey_authenticate __P ((const char *));
int skey_passcheck __P ((const char *, char *));
const char *skey_keyinfo __P ((const char *));
int skey_haskey __P ((const char *));
int getskeyprompt __P ((struct skey *, char *, char *));
int atob8 __P((char *, const char *));
int btoa8 __P((char *, const char *));
int htoi __P((int));
const char *skey_get_algorithm __P((void));
const char *skey_set_algorithm __P((const char *));
int skeygetnext __P((struct skey *));
int skeyzero __P((struct skey *, char *));