+++ /dev/null
-/*
- * Copyright (c) 1997-1999 The Stanford SRP Authentication Project
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sublicense, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
- * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
- *
- * IN NO EVENT SHALL STANFORD BE LIABLE FOR ANY SPECIAL, INCIDENTAL,
- * INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, OR ANY DAMAGES WHATSOEVER
- * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER OR NOT ADVISED OF
- * THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF LIABILITY, ARISING OUT
- * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
- *
- * In addition, the following conditions apply:
- *
- * 1. Any software that incorporates the SRP authentication technology
- * must display the following acknowlegment:
- * "This product uses the 'Secure Remote Password' cryptographic
- * authentication system developed by Tom Wu (tjw@CS.Stanford.EDU)."
- *
- * 2. Any software that incorporates all or part of the SRP distribution
- * itself must also display the following acknowledgment:
- * "This product includes software developed by Tom Wu and Eugene
- * Jhong for the SRP Distribution (http://srp.stanford.edu/srp/)."
- *
- * 3. Redistributions in source or binary form must retain an intact copy
- * of this copyright notice and list of conditions.
- */
-
-#ifndef T_PWD_H
-#define T_PWD_H
-
-#ifndef P
-#if defined (__STDC__) || defined (__cplusplus)
-#define P(x) x
-#else
-#define P(x) ()
-#endif
-#endif
-
-/* For building dynamic link libraries under windows, windows NT
- * using MSVC1.5 or MSVC2.0
- */
-
-#ifndef _DLLDECL
-#define _DLLDECL
-
-#ifdef MSVC15 /* MSVC1.5 support for 16 bit apps */
-#define _MSVC15EXPORT _export
-#define _MSVC20EXPORT
-#define _DLLAPI _export _pascal
-#define _TYPE(a) a _MSVC15EXPORT
-#define DLLEXPORT 1
-
-#elif MSVC20
-#define _MSVC15EXPORT
-#define _MSVC20EXPORT _declspec(dllexport)
-#define _DLLAPI
-#define _TYPE(a) _MSVC20EXPORT a
-#define DLLEXPORT 1
-
-#else /* Default, non-dll. Use this for Unix or DOS */
-#define _MSVC15DEXPORT
-#define _MSVC20EXPORT
-#define _DLLAPI
-#define _TYPE(a) a
-#endif
-#endif
-
-#define MAXPARAMBITS 2048
-#define MAXPARAMLEN ((MAXPARAMBITS + 7) / 8)
-#define MAXB64PARAMLEN ((MAXPARAMBITS + 5) / 6 + 1)
-#define MAXHEXPARAMLEN ((MAXPARAMBITS + 3) / 4 + 1)
-#define MAXOCTPARAMLEN ((MAXPARAMBITS + 2) / 3 + 1)
-
-#define MAXUSERLEN 32
-#define MAXSALTLEN 32
-#define MAXB64SALTLEN 44 /* 256 bits in b64 + null */
-#define SALTLEN 10 /* Normally 80 bits */
-
-#define RESPONSE_LEN 20 /* 160-bit proof hashes */
-#define SESSION_KEY_LEN (2 * RESPONSE_LEN) /* 320-bit session key */
-
-#define DEFAULT_PASSWD "tpasswd"
-
-struct t_num { /* Standard byte-oriented integer representation */
- int len;
- unsigned char * data;
-};
-
-struct t_preconf { /* Structure returned by t_getpreparam() */
- char * mod_b64;
- char * gen_b64;
- char * comment;
-
- struct t_num modulus;
- struct t_num generator;
-};
-
-/*
- * The built-in (known good) parameters access routines
- *
- * "t_getprecount" returns the number of precompiled parameter sets.
- * "t_getpreparam" returns the indicated parameter set.
- * Memory is statically allocated - callers need not perform any memory mgmt.
- */
-_TYPE( int ) t_getprecount();
-_TYPE( struct t_preconf * ) t_getpreparam P((int));
-
-struct t_confent { /* One configuration file entry (index, N, g) */
- int index;
- struct t_num modulus;
- struct t_num generator;
-};
-
-struct t_conf { /* An open configuration file */
- FILE * instream;
- char close_on_exit;
- unsigned char modbuf[MAXPARAMLEN];
- unsigned char genbuf[MAXPARAMLEN];
- struct t_confent tcbuf;
-};
-
-/*
- * The configuration file routines are designed along the lines of the
- * "getpw" functions in the standard C library.
- *
- * "t_openconf" accepts a stdio stream and interprets it as a config file.
- * "t_openconfbyname" accepts a filename and does the same thing.
- * "t_closeconf" closes the config file.
- * "t_getconfent" fetches the next sequential configuration entry.
- * "t_getconfbyindex" fetches the configuration entry whose index
- * matches the one supplied, or NULL if one can't be found.
- * "t_getconflast" fetches the last configuration entry in the file.
- * "t_makeconfent" generates a set of configuration entry parameters
- * randomly.
- * "t_newconfent" returns an empty configuration entry.
- * "t_cmpconfent" compares two configuration entries a la strcmp.
- * "t_checkconfent" verifies that a set of configuration parameters
- * are suitable. N must be prime and should be a safe prime.
- * "t_putconfent" writes a configuration entry to a stream.
- */
-_TYPE( struct t_conf * ) t_openconf P((FILE *));
-_TYPE( struct t_conf * ) t_openconfbyname P((const char *));
-_TYPE( void ) t_closeconf P((struct t_conf *));
-_TYPE( void ) t_rewindconf P((struct t_conf *));
-_TYPE( struct t_confent * ) t_getconfent P((struct t_conf *));
-_TYPE( struct t_confent * ) t_getconfbyindex P((struct t_conf *, int));
-_TYPE( struct t_confent * ) t_getconflast P((struct t_conf *));
-_TYPE( struct t_confent * ) t_makeconfent P((struct t_conf *, int));
-_TYPE( struct t_confent * ) t_makeconfent_c P((struct t_conf *, int));
-_TYPE( struct t_confent * ) t_newconfent P((struct t_conf *));
-_TYPE( int ) t_cmpconfent P((const struct t_confent *, const struct t_confent *));
-_TYPE( int ) t_checkconfent P((const struct t_confent *));
-_TYPE( void ) t_putconfent P((const struct t_confent *, FILE *));
-
-/* libc-style system conf file access */
-_TYPE( struct t_confent *) gettcent();
-_TYPE( struct t_confent *) gettcid P((int));
-_TYPE( void ) settcent();
-_TYPE( void ) endtcent();
-
-#ifdef ENABLE_NSW
-extern struct t_confent * _gettcent();
-extern struct t_confent * _gettcid P((int));
-extern void _settcent();
-extern void _endtcent();
-#endif
-
-/* A hack to support '+'-style entries in the passwd file */
-
-typedef enum fstate {
- FILE_ONLY, /* Ordinary file, don't consult NIS ever */
- FILE_NIS, /* Currently accessing file, use NIS if encountered */
- IN_NIS, /* Currently in a '+' entry; use NIS for getXXent */
-} FILE_STATE;
-
-struct t_pwent { /* A single password file entry */
- char * name;
- struct t_num password;
- struct t_num salt;
- int index;
-};
-
-struct t_pw { /* An open password file */
- FILE * instream;
- char close_on_exit;
- FILE_STATE state;
- char userbuf[MAXUSERLEN];
- unsigned char pwbuf[MAXPARAMLEN];
- unsigned char saltbuf[SALTLEN];
- struct t_pwent pebuf;
-};
-
-/*
- * The password manipulation routines are patterned after the getpw*
- * standard C library function calls.
- *
- * "t_openpw" reads a stream as if it were a password file.
- * "t_openpwbyname" opens the named file as a password file.
- * "t_closepw" closes an open password file.
- * "t_rewindpw" starts the internal file pointer from the beginning
- * of the password file.
- * "t_getpwent" retrieves the next sequential password entry.
- * "t_getpwbyname" looks up the password entry corresponding to the
- * specified user.
- * "t_makepwent" constructs a password entry from a username, password,
- * numeric salt, and configuration entry.
- * "t_putpwent" writes a password entry to a stream.
- */
-_TYPE( struct t_pw * ) t_openpw P((FILE *));
-_TYPE( struct t_pw * ) t_openpwbyname P((const char *));
-_TYPE( void ) t_closepw P((struct t_pw *));
-_TYPE( void ) t_rewindpw P((struct t_pw *));
-_TYPE( struct t_pwent * ) t_getpwent P((struct t_pw *));
-_TYPE( struct t_pwent * ) t_getpwbyname P((struct t_pw *, const char *));
-_TYPE( struct t_pwent * ) t_makepwent P((struct t_pw *, const char *,
- const char *, const struct t_num *,
- const struct t_confent *));
-_TYPE( void ) t_putpwent P((const struct t_pwent *, FILE *));
-
-struct t_passwd {
- struct t_pwent tp;
- struct t_confent tc;
-};
-
-/* libc-style system password file access */
-_TYPE( struct t_passwd * ) gettpent();
-_TYPE( struct t_passwd * ) gettpnam P((const char *));
-_TYPE( void ) settpent();
-_TYPE( void ) endtpent();
-
-#ifdef ENABLE_NSW
-extern struct t_passwd * _gettpent();
-extern struct t_passwd * _gettpnam P((const char *));
-extern void _settpent();
-extern void _endtpent();
-#endif
-
-/*
- * Utility functions
- *
- * "t_verifypw" accepts a username and password, and checks against the
- * system password file to see if the password for that user is correct.
- * Returns > 0 if it is correct, 0 if not, and -1 if some error occurred
- * (i.e. the user doesn't exist on the system). This is intended ONLY
- * for local authentication; for remote authentication, look at the
- * t_client and t_server source. (That's the whole point of SRP!)
- * "t_changepw" modifies the specified file, substituting the given password
- * entry for the one already in the file. If no matching entry is found,
- * the new entry is simply appended to the file.
- * "t_deletepw" removes the specified user from the specified file.
- */
-_TYPE( int ) t_verifypw P((const char *, const char *));
-_TYPE( int ) t_changepw P((const char *, const struct t_pwent *));
-_TYPE( int ) t_deletepw P((const char *, const char *));
-
-/* Conversion utilities */
-
-/*
- * All these calls accept output as the first parameter. In the case of
- * t_tohex and t_tob64, the last argument is the length of the byte-string
- * input.
- */
-_TYPE( char * t_tohex ) P((char *, char *, unsigned));
-_TYPE( int ) t_fromhex P((char *, char *));
-_TYPE( char * ) t_tob64 P((char *, char *, unsigned));
-_TYPE( int ) t_fromb64 P((char *, char *));
-
-/* Miscellaneous utilities */
-
-/*
- * "t_random" is a cryptographic random number generator, which is seeded
- * from various high-entropy sources and uses a one-way hash function
- * in a feedback configuration.
- * "t_sessionkey" is the interleaved hash used to generate session keys
- * from a large integer.
- * "t_getpass" reads a password from the terminal without echoing.
- */
-_TYPE( void ) t_random P((unsigned char *, unsigned));
-_TYPE( void ) t_stronginitrand();
-_TYPE( unsigned char * )
- t_sessionkey P((unsigned char *, unsigned char *, unsigned));
-_TYPE( int ) t_getpass P((char *, unsigned, const char *));
-
-/*
- * Return value of t_checkprime:
- * < 0 : not prime
- * = 0 : prime, but not safe
- * > 0 : safe
- */
-#define NUM_NOTPRIME -1
-#define NUM_NOTSAFE 0
-#define NUM_SAFE 1
-
-_TYPE( int ) t_checkprime P((const struct t_num *));
-
-#endif
projects / openwrt / openwrt.git / blobdiff