NetBSD/lib/libskey/skey.h

97 lines
2.5 KiB
C

/* $NetBSD: skey.h,v 1.9 2005/02/04 16:12:13 perry 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(char *);
int keycrunch(char *, const char *, const char *);
char *btoe(char *, const char *);
char *put8(char *, const char *);
int etob(char *, const char *);
void rip(char *);
int skeychallenge(struct skey *, const char *, char *, size_t);
int skeylookup(struct skey *, const char *);
int skeyverify(struct skey *, char *);
void sevenbit(char *);
void backspace(char *);
const char *skipspace(const char *);
char *readpass(char *, int);
char *readskey(char *, int);
int skey_authenticate(const char *);
int skey_passcheck(const char *, char *);
const char *skey_keyinfo(const char *);
int skey_haskey(const char *);
int getskeyprompt(struct skey *, char *, char *);
int atob8(char *, const char *);
int btoa8(char *, const char *);
int htoi(int);
const char *skey_get_algorithm(void);
const char *skey_set_algorithm(const char *);
int skeygetnext(struct skey *);
int skeyzero(struct skey *, char *);