mirror of
https://git.openldap.org/openldap/openldap.git
synced 2024-12-21 03:10:25 +08:00
1252 lines
28 KiB
C
1252 lines
28 KiB
C
/* $OpenLDAP$ */
|
|
/*
|
|
* Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
|
|
* COPYING RESTRICTIONS APPLY, see COPYRIGHT file
|
|
*/
|
|
/*
|
|
* int lutil_passwd(
|
|
* const struct berval *passwd,
|
|
* const struct berval *cred,
|
|
* const char **schemes )
|
|
*
|
|
* Returns true if user supplied credentials (cred) matches
|
|
* the stored password (passwd).
|
|
*
|
|
* Due to the use of the crypt(3) function
|
|
* this routine is NOT thread-safe.
|
|
*/
|
|
|
|
#include "portable.h"
|
|
|
|
#include <stdio.h>
|
|
#include <ac/stdlib.h>
|
|
#include <ac/string.h>
|
|
#include <ac/unistd.h>
|
|
|
|
#ifdef SLAPD_LMHASH
|
|
# include <openssl/des.h>
|
|
#endif /* SLAPD_LMHASH */
|
|
|
|
#ifdef SLAPD_SPASSWD
|
|
# include <sasl.h>
|
|
#endif
|
|
|
|
#ifdef SLAPD_KPASSWD
|
|
# include <ac/krb.h>
|
|
# include <ac/krb5.h>
|
|
#endif
|
|
|
|
#include <ac/param.h>
|
|
|
|
#ifdef SLAPD_CRYPT
|
|
# include <ac/crypt.h>
|
|
|
|
# if defined( HAVE_GETPWNAM ) && defined( HAVE_PW_PASSWD )
|
|
# ifdef HAVE_SHADOW_H
|
|
# include <shadow.h>
|
|
# endif
|
|
# ifdef HAVE_PWD_H
|
|
# include <pwd.h>
|
|
# endif
|
|
# ifdef HAVE_AIX_SECURITY
|
|
# include <userpw.h>
|
|
# endif
|
|
# endif
|
|
#endif
|
|
|
|
#include <lber.h>
|
|
|
|
#include "ldap_pvt.h"
|
|
|
|
#include "lutil_md5.h"
|
|
#include "lutil_sha1.h"
|
|
#include "lutil.h"
|
|
|
|
static const unsigned char crypt64[] =
|
|
"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz1234567890./";
|
|
|
|
#ifdef SLAPD_CRYPT
|
|
static char *salt_format = NULL;
|
|
#endif
|
|
|
|
struct pw_scheme;
|
|
|
|
typedef int (*PASSWD_CHK_FUNC)(
|
|
const struct pw_scheme *scheme,
|
|
const struct berval *passwd,
|
|
const struct berval *cred );
|
|
|
|
typedef struct berval * (*PASSWD_HASH_FUNC) (
|
|
const struct pw_scheme *scheme,
|
|
const struct berval *passwd );
|
|
|
|
struct pw_scheme {
|
|
struct berval name;
|
|
PASSWD_CHK_FUNC chk_fn;
|
|
PASSWD_HASH_FUNC hash_fn;
|
|
};
|
|
|
|
/* password check routines */
|
|
static int chk_md5(
|
|
const struct pw_scheme *scheme,
|
|
const struct berval *passwd,
|
|
const struct berval *cred );
|
|
|
|
static int chk_smd5(
|
|
const struct pw_scheme *scheme,
|
|
const struct berval *passwd,
|
|
const struct berval *cred );
|
|
|
|
#ifdef LUTIL_SHA1_BYTES
|
|
static int chk_ssha1(
|
|
const struct pw_scheme *scheme,
|
|
const struct berval *passwd,
|
|
const struct berval *cred );
|
|
|
|
static int chk_sha1(
|
|
const struct pw_scheme *scheme,
|
|
const struct berval *passwd,
|
|
const struct berval *cred );
|
|
#endif
|
|
|
|
#ifdef SLAPD_LMHASH
|
|
static int chk_lanman(
|
|
const struct pw_scheme *scheme,
|
|
const struct berval *passwd,
|
|
const struct berval *cred );
|
|
#endif
|
|
|
|
#ifdef SLAPD_SPASSWD
|
|
static int chk_sasl(
|
|
const struct pw_scheme *scheme,
|
|
const struct berval *passwd,
|
|
const struct berval *cred );
|
|
#endif
|
|
|
|
#ifdef SLAPD_KPASSWD
|
|
static int chk_kerberos(
|
|
const struct pw_scheme *scheme,
|
|
const struct berval *passwd,
|
|
const struct berval *cred );
|
|
#endif
|
|
|
|
#ifdef SLAPD_CRYPT
|
|
static int chk_crypt(
|
|
const struct pw_scheme *scheme,
|
|
const struct berval *passwd,
|
|
const struct berval *cred );
|
|
|
|
#if defined( HAVE_GETPWNAM ) && defined( HAVE_PW_PASSWD )
|
|
static int chk_unix(
|
|
const struct pw_scheme *scheme,
|
|
const struct berval *passwd,
|
|
const struct berval *cred );
|
|
#endif
|
|
#endif
|
|
|
|
|
|
#ifdef LUTIL_SHA1_BYTES
|
|
/* password hash routines */
|
|
static struct berval *hash_sha1(
|
|
const struct pw_scheme *scheme,
|
|
const struct berval *passwd );
|
|
|
|
static struct berval *hash_ssha1(
|
|
const struct pw_scheme *scheme,
|
|
const struct berval *passwd );
|
|
#endif
|
|
|
|
static struct berval *hash_smd5(
|
|
const struct pw_scheme *scheme,
|
|
const struct berval *passwd );
|
|
|
|
static struct berval *hash_md5(
|
|
const struct pw_scheme *scheme,
|
|
const struct berval *passwd );
|
|
|
|
#ifdef SLAPD_LMHASH
|
|
static struct berval *hash_lanman(
|
|
const struct pw_scheme *scheme,
|
|
const struct berval *passwd );
|
|
#endif
|
|
|
|
#ifdef SLAPD_CRYPT
|
|
static struct berval *hash_crypt(
|
|
const struct pw_scheme *scheme,
|
|
const struct berval *passwd );
|
|
#endif
|
|
|
|
|
|
static const struct pw_scheme pw_schemes[] =
|
|
{
|
|
#ifdef LUTIL_SHA1_BYTES
|
|
{ {sizeof("{SSHA}")-1, "{SSHA}"}, chk_ssha1, hash_ssha1 },
|
|
{ {sizeof("{SHA}")-1, "{SHA}"}, chk_sha1, hash_sha1 },
|
|
#endif
|
|
|
|
{ {sizeof("{SMD5}")-1, "{SMD5}"}, chk_smd5, hash_smd5 },
|
|
{ {sizeof("{MD5}")-1, "{MD5}"}, chk_md5, hash_md5 },
|
|
|
|
#ifdef SLAPD_LMHASH
|
|
{ {sizeof("{LANMAN}")-1, "{LANMAN}"}, chk_lanman, hash_lanman },
|
|
#endif /* SLAPD_LMHASH */
|
|
|
|
#ifdef SLAPD_SPASSWD
|
|
{ {sizeof("{SASL}")-1, "{SASL}"}, chk_sasl, NULL },
|
|
#endif
|
|
|
|
#ifdef SLAPD_KPASSWD
|
|
{ {sizeof("{KERBEROS}")-1, "{KERBEROS}"}, chk_kerberos, NULL },
|
|
#endif
|
|
|
|
#ifdef SLAPD_CRYPT
|
|
{ {sizeof("{CRYPT}")-1, "{CRYPT}"}, chk_crypt, hash_crypt },
|
|
# if defined( HAVE_GETPWNAM ) && defined( HAVE_PW_PASSWD )
|
|
{ {sizeof("{UNIX}")-1, "{UNIX}"}, chk_unix, NULL },
|
|
# endif
|
|
#endif
|
|
|
|
#ifdef SLAPD_CLEARTEXT
|
|
/* psuedo scheme */
|
|
{ {0, "{CLEARTEXT}"}, NULL, NULL },
|
|
#endif
|
|
|
|
{ {0, NULL}, NULL, NULL }
|
|
};
|
|
|
|
static const struct pw_scheme *get_scheme(
|
|
const char* scheme )
|
|
{
|
|
int i;
|
|
|
|
for( i=0; pw_schemes[i].name.bv_val; i++) {
|
|
if( pw_schemes[i].name.bv_len == 0 ) continue;
|
|
|
|
if( strncasecmp(scheme, pw_schemes[i].name.bv_val,
|
|
pw_schemes[i].name.bv_len) == 0 )
|
|
{
|
|
return &pw_schemes[i];
|
|
}
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
int lutil_passwd_scheme(
|
|
const char* scheme )
|
|
{
|
|
if( scheme == NULL ) {
|
|
return 0;
|
|
}
|
|
|
|
return get_scheme(scheme) != NULL;
|
|
}
|
|
|
|
|
|
static int is_allowed_scheme(
|
|
const char* scheme,
|
|
const char** schemes )
|
|
{
|
|
int i;
|
|
|
|
if( schemes == NULL ) return 1;
|
|
|
|
for( i=0; schemes[i] != NULL; i++ ) {
|
|
if( strcasecmp( scheme, schemes[i] ) == 0 ) {
|
|
return 1;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static struct berval *passwd_scheme(
|
|
const struct pw_scheme *scheme,
|
|
const struct berval * passwd,
|
|
const char** allowed )
|
|
{
|
|
if( !is_allowed_scheme( scheme->name.bv_val, allowed ) ) {
|
|
return NULL;
|
|
}
|
|
|
|
if( passwd->bv_len >= scheme->name.bv_len ) {
|
|
if( strncasecmp( passwd->bv_val, scheme->name.bv_val, scheme->name.bv_len ) == 0 ) {
|
|
struct berval *bv = ber_memalloc( sizeof(struct berval) );
|
|
|
|
if( bv == NULL ) return NULL;
|
|
|
|
bv->bv_val = &passwd->bv_val[scheme->name.bv_len];
|
|
bv->bv_len = passwd->bv_len - scheme->name.bv_len;
|
|
|
|
return bv;
|
|
}
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
/*
|
|
* Return 0 if creds are good.
|
|
*/
|
|
int
|
|
lutil_passwd(
|
|
const struct berval *passwd, /* stored passwd */
|
|
const struct berval *cred, /* user cred */
|
|
const char **schemes )
|
|
{
|
|
int i;
|
|
|
|
if (cred == NULL || cred->bv_len == 0 ||
|
|
passwd == NULL || passwd->bv_len == 0 )
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
for( i=0; pw_schemes[i].name.bv_val != NULL; i++ ) {
|
|
if( pw_schemes[i].chk_fn ) {
|
|
struct berval *p = passwd_scheme( &pw_schemes[i],
|
|
passwd, schemes );
|
|
|
|
if( p != NULL ) {
|
|
int rc = (pw_schemes[i].chk_fn)( &pw_schemes[i], p, cred );
|
|
|
|
/* only free the berval structure as the bv_val points
|
|
* into passwd->bv_val
|
|
*/
|
|
ber_memfree( p );
|
|
|
|
return rc;
|
|
}
|
|
}
|
|
}
|
|
|
|
#ifdef SLAPD_CLEARTEXT
|
|
if( is_allowed_scheme("{CLEARTEXT}", schemes ) ) {
|
|
return passwd->bv_len == cred->bv_len
|
|
? memcmp( passwd->bv_val, cred->bv_val, passwd->bv_len )
|
|
: 1;
|
|
}
|
|
#endif
|
|
return 1;
|
|
}
|
|
|
|
struct berval * lutil_passwd_generate( ber_len_t len )
|
|
{
|
|
struct berval *pw;
|
|
|
|
if( len < 1 ) return NULL;
|
|
|
|
pw = ber_memalloc( sizeof( struct berval ) );
|
|
if( pw == NULL ) return NULL;
|
|
|
|
pw->bv_len = len;
|
|
pw->bv_val = ber_memalloc( len + 1 );
|
|
|
|
if( pw->bv_val == NULL ) {
|
|
ber_memfree( pw );
|
|
return NULL;
|
|
}
|
|
|
|
if( lutil_entropy( pw->bv_val, pw->bv_len) < 0 ) {
|
|
ber_bvfree( pw );
|
|
return NULL;
|
|
}
|
|
|
|
for( len = 0; len < pw->bv_len; len++ ) {
|
|
pw->bv_val[len] = crypt64[
|
|
pw->bv_val[len] % (sizeof(crypt64)-1) ];
|
|
}
|
|
|
|
pw->bv_val[len] = '\0';
|
|
|
|
return pw;
|
|
}
|
|
|
|
struct berval * lutil_passwd_hash(
|
|
const struct berval * passwd,
|
|
const char * method )
|
|
{
|
|
const struct pw_scheme *sc = get_scheme( method );
|
|
|
|
if( sc == NULL ) return NULL;
|
|
if( ! sc->hash_fn ) return NULL;
|
|
|
|
return (sc->hash_fn)( sc, passwd );
|
|
}
|
|
|
|
/* pw_string is only called when SLAPD_LMHASH or SLAPD_CRYPT is defined */
|
|
#if defined(SLAPD_LMHASH) || defined(SLAPD_CRYPT)
|
|
static struct berval * pw_string(
|
|
const struct pw_scheme *sc,
|
|
const struct berval *passwd )
|
|
{
|
|
struct berval *pw = ber_memalloc( sizeof( struct berval ) );
|
|
if( pw == NULL ) return NULL;
|
|
|
|
pw->bv_len = sc->name.bv_len + passwd->bv_len;
|
|
pw->bv_val = ber_memalloc( pw->bv_len + 1 );
|
|
|
|
if( pw->bv_val == NULL ) {
|
|
ber_memfree( pw );
|
|
return NULL;
|
|
}
|
|
|
|
AC_MEMCPY( pw->bv_val, sc->name.bv_val, sc->name.bv_len );
|
|
AC_MEMCPY( &pw->bv_val[sc->name.bv_len], passwd->bv_val, passwd->bv_len );
|
|
|
|
pw->bv_val[pw->bv_len] = '\0';
|
|
return pw;
|
|
}
|
|
#endif /* SLAPD_LMHASH || SLAPD_CRYPT */
|
|
|
|
static struct berval * pw_string64(
|
|
const struct pw_scheme *sc,
|
|
const struct berval *hash,
|
|
const struct berval *salt )
|
|
{
|
|
int rc;
|
|
struct berval string;
|
|
struct berval *b64 = ber_memalloc( sizeof(struct berval) );
|
|
size_t b64len;
|
|
|
|
if( b64 == NULL ) return NULL;
|
|
|
|
if( salt ) {
|
|
/* need to base64 combined string */
|
|
string.bv_len = hash->bv_len + salt->bv_len;
|
|
string.bv_val = ber_memalloc( string.bv_len + 1 );
|
|
|
|
if( string.bv_val == NULL ) {
|
|
ber_memfree( b64 );
|
|
return NULL;
|
|
}
|
|
|
|
AC_MEMCPY( string.bv_val, hash->bv_val,
|
|
hash->bv_len );
|
|
AC_MEMCPY( &string.bv_val[hash->bv_len], salt->bv_val,
|
|
salt->bv_len );
|
|
string.bv_val[string.bv_len] = '\0';
|
|
|
|
} else {
|
|
string = *hash;
|
|
}
|
|
|
|
b64len = LUTIL_BASE64_ENCODE_LEN( string.bv_len ) + 1;
|
|
b64->bv_len = b64len + sc->name.bv_len;
|
|
b64->bv_val = ber_memalloc( b64->bv_len + 1 );
|
|
|
|
if( b64->bv_val == NULL ) {
|
|
if( salt ) ber_memfree( string.bv_val );
|
|
ber_memfree( b64 );
|
|
return NULL;
|
|
}
|
|
|
|
AC_MEMCPY(b64->bv_val, sc->name.bv_val, sc->name.bv_len);
|
|
|
|
rc = lutil_b64_ntop(
|
|
string.bv_val, string.bv_len,
|
|
&b64->bv_val[sc->name.bv_len], b64len );
|
|
|
|
if( salt ) ber_memfree( string.bv_val );
|
|
|
|
if( rc < 0 ) {
|
|
ber_bvfree( b64 );
|
|
return NULL;
|
|
}
|
|
|
|
/* recompute length */
|
|
b64->bv_len = sc->name.bv_len + rc;
|
|
assert( strlen(b64->bv_val) == b64->bv_len );
|
|
return b64;
|
|
}
|
|
|
|
/* PASSWORD CHECK ROUTINES */
|
|
|
|
#ifdef LUTIL_SHA1_BYTES
|
|
static int chk_ssha1(
|
|
const struct pw_scheme *sc,
|
|
const struct berval * passwd,
|
|
const struct berval * cred )
|
|
{
|
|
lutil_SHA1_CTX SHA1context;
|
|
unsigned char SHA1digest[LUTIL_SHA1_BYTES];
|
|
int rc;
|
|
unsigned char *orig_pass = NULL;
|
|
|
|
/* decode base64 password */
|
|
orig_pass = (unsigned char *) ber_memalloc( (size_t) (
|
|
LUTIL_BASE64_DECODE_LEN(passwd->bv_len) + 1) );
|
|
|
|
if( orig_pass == NULL ) return -1;
|
|
|
|
rc = lutil_b64_pton(passwd->bv_val, orig_pass, passwd->bv_len);
|
|
|
|
if(rc < 0) {
|
|
ber_memfree(orig_pass);
|
|
return -1;
|
|
}
|
|
|
|
/* hash credentials with salt */
|
|
lutil_SHA1Init(&SHA1context);
|
|
lutil_SHA1Update(&SHA1context,
|
|
(const unsigned char *) cred->bv_val, cred->bv_len);
|
|
lutil_SHA1Update(&SHA1context,
|
|
(const unsigned char *) &orig_pass[sizeof(SHA1digest)],
|
|
rc - sizeof(SHA1digest));
|
|
lutil_SHA1Final(SHA1digest, &SHA1context);
|
|
|
|
/* compare */
|
|
rc = memcmp((char *)orig_pass, (char *)SHA1digest, sizeof(SHA1digest));
|
|
ber_memfree(orig_pass);
|
|
return rc ? 1 : 0;
|
|
}
|
|
|
|
static int chk_sha1(
|
|
const struct pw_scheme *sc,
|
|
const struct berval * passwd,
|
|
const struct berval * cred )
|
|
{
|
|
lutil_SHA1_CTX SHA1context;
|
|
unsigned char SHA1digest[LUTIL_SHA1_BYTES];
|
|
int rc;
|
|
unsigned char *orig_pass = NULL;
|
|
|
|
/* base64 un-encode password */
|
|
orig_pass = (unsigned char *) ber_memalloc( (size_t) (
|
|
LUTIL_BASE64_DECODE_LEN(passwd->bv_len) + 1) );
|
|
|
|
if( orig_pass == NULL ) return -1;
|
|
|
|
rc = lutil_b64_pton(passwd->bv_val, orig_pass, passwd->bv_len);
|
|
|
|
if( rc != sizeof(SHA1digest) ) {
|
|
ber_memfree(orig_pass);
|
|
return -1;
|
|
}
|
|
|
|
/* hash credentials with salt */
|
|
lutil_SHA1Init(&SHA1context);
|
|
lutil_SHA1Update(&SHA1context,
|
|
(const unsigned char *) cred->bv_val, cred->bv_len);
|
|
lutil_SHA1Final(SHA1digest, &SHA1context);
|
|
|
|
/* compare */
|
|
rc = memcmp((char *)orig_pass, (char *)SHA1digest, sizeof(SHA1digest));
|
|
ber_memfree(orig_pass);
|
|
return rc ? 1 : 0;
|
|
}
|
|
#endif
|
|
|
|
static int chk_smd5(
|
|
const struct pw_scheme *sc,
|
|
const struct berval * passwd,
|
|
const struct berval * cred )
|
|
{
|
|
lutil_MD5_CTX MD5context;
|
|
unsigned char MD5digest[LUTIL_MD5_BYTES];
|
|
int rc;
|
|
unsigned char *orig_pass = NULL;
|
|
|
|
/* base64 un-encode password */
|
|
orig_pass = (unsigned char *) ber_memalloc( (size_t) (
|
|
LUTIL_BASE64_DECODE_LEN(passwd->bv_len) + 1) );
|
|
|
|
if( orig_pass == NULL ) return -1;
|
|
|
|
rc = lutil_b64_pton(passwd->bv_val, orig_pass, passwd->bv_len);
|
|
if ( rc < 0 ) {
|
|
ber_memfree(orig_pass);
|
|
return -1;
|
|
}
|
|
|
|
/* hash credentials with salt */
|
|
lutil_MD5Init(&MD5context);
|
|
lutil_MD5Update(&MD5context,
|
|
(const unsigned char *) cred->bv_val,
|
|
cred->bv_len );
|
|
lutil_MD5Update(&MD5context,
|
|
&orig_pass[sizeof(MD5digest)],
|
|
rc - sizeof(MD5digest));
|
|
lutil_MD5Final(MD5digest, &MD5context);
|
|
|
|
/* compare */
|
|
rc = memcmp((char *)orig_pass, (char *)MD5digest, sizeof(MD5digest));
|
|
ber_memfree(orig_pass);
|
|
return rc ? 1 : 0;
|
|
}
|
|
|
|
static int chk_md5(
|
|
const struct pw_scheme *sc,
|
|
const struct berval * passwd,
|
|
const struct berval * cred )
|
|
{
|
|
lutil_MD5_CTX MD5context;
|
|
unsigned char MD5digest[LUTIL_MD5_BYTES];
|
|
int rc;
|
|
unsigned char *orig_pass = NULL;
|
|
|
|
/* base64 un-encode password */
|
|
orig_pass = (unsigned char *) ber_memalloc( (size_t) (
|
|
LUTIL_BASE64_DECODE_LEN(passwd->bv_len) + 1) );
|
|
|
|
if( orig_pass == NULL ) return -1;
|
|
|
|
rc = lutil_b64_pton(passwd->bv_val, orig_pass, passwd->bv_len);
|
|
if ( rc != sizeof(MD5digest) ) {
|
|
ber_memfree(orig_pass);
|
|
return -1;
|
|
}
|
|
|
|
/* hash credentials with salt */
|
|
lutil_MD5Init(&MD5context);
|
|
lutil_MD5Update(&MD5context,
|
|
(const unsigned char *) cred->bv_val,
|
|
cred->bv_len );
|
|
lutil_MD5Final(MD5digest, &MD5context);
|
|
|
|
/* compare */
|
|
rc = memcmp((char *)orig_pass, (char *)MD5digest, sizeof(MD5digest));
|
|
ber_memfree(orig_pass);
|
|
return rc ? 1 : 0;
|
|
}
|
|
|
|
#ifdef SLAPD_LMHASH
|
|
static int chk_lanman(
|
|
const struct pw_scheme *scheme,
|
|
const struct berval *passwd,
|
|
const struct berval *cred )
|
|
{
|
|
struct berval *hash;
|
|
|
|
hash = hash_lanman( scheme, cred );
|
|
return memcmp( &hash->bv_val[scheme->name.bv_len], passwd->bv_val, 32);
|
|
}
|
|
#endif /* SLAPD_LMHASH */
|
|
|
|
#ifdef SLAPD_SPASSWD
|
|
#ifdef HAVE_CYRUS_SASL
|
|
sasl_conn_t *lutil_passwd_sasl_conn = NULL;
|
|
#endif
|
|
|
|
static int chk_sasl(
|
|
const struct pw_scheme *sc,
|
|
const struct berval * passwd,
|
|
const struct berval * cred )
|
|
{
|
|
int i;
|
|
int rtn;
|
|
|
|
for( i=0; i<cred->bv_len; i++) {
|
|
if(cred->bv_val[i] == '\0') {
|
|
return 1; /* NUL character in password */
|
|
}
|
|
}
|
|
|
|
if( cred->bv_val[i] != '\0' ) {
|
|
return 1; /* cred must behave like a string */
|
|
}
|
|
|
|
for( i=0; i<passwd->bv_len; i++) {
|
|
if(passwd->bv_val[i] == '\0') {
|
|
return 1; /* NUL character in password */
|
|
}
|
|
}
|
|
|
|
if( passwd->bv_val[i] != '\0' ) {
|
|
return 1; /* passwd must behave like a string */
|
|
}
|
|
|
|
rtn = 1;
|
|
|
|
#ifdef HAVE_CYRUS_SASL
|
|
if( lutil_passwd_sasl_conn != NULL ) {
|
|
const char *errstr = NULL;
|
|
int sc;
|
|
|
|
sc = sasl_checkpass( lutil_passwd_sasl_conn,
|
|
passwd->bv_val, passwd->bv_len,
|
|
cred->bv_val, cred->bv_len,
|
|
&errstr );
|
|
|
|
rtn = ( sc != SASL_OK );
|
|
}
|
|
#endif
|
|
|
|
return rtn;
|
|
}
|
|
#endif
|
|
|
|
#ifdef SLAPD_KPASSWD
|
|
static int chk_kerberos(
|
|
const struct pw_scheme *sc,
|
|
const struct berval * passwd,
|
|
const struct berval * cred )
|
|
{
|
|
int i;
|
|
int rtn;
|
|
|
|
for( i=0; i<cred->bv_len; i++) {
|
|
if(cred->bv_val[i] == '\0') {
|
|
return 1; /* NUL character in password */
|
|
}
|
|
}
|
|
|
|
if( cred->bv_val[i] != '\0' ) {
|
|
return 1; /* cred must behave like a string */
|
|
}
|
|
|
|
for( i=0; i<passwd->bv_len; i++) {
|
|
if(passwd->bv_val[i] == '\0') {
|
|
return 1; /* NUL character in password */
|
|
}
|
|
}
|
|
|
|
if( passwd->bv_val[i] != '\0' ) {
|
|
return 1; /* passwd must behave like a string */
|
|
}
|
|
|
|
rtn = 1;
|
|
|
|
#ifdef HAVE_KRB5 /* HAVE_HEIMDAL_KRB5 */
|
|
{
|
|
/* Portions:
|
|
* Copyright (c) 1997, 1998, 1999 Kungliga Tekniska H\xf6gskolan
|
|
* (Royal Institute of Technology, Stockholm, Sweden).
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
*
|
|
* 3. Neither the name of the Institute nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
krb5_context context;
|
|
krb5_error_code ret;
|
|
krb5_creds creds;
|
|
krb5_get_init_creds_opt get_options;
|
|
krb5_verify_init_creds_opt verify_options;
|
|
krb5_principal client, server;
|
|
#ifdef notdef
|
|
krb5_preauthtype pre_auth_types[] = {KRB5_PADATA_ENC_TIMESTAMP};
|
|
#endif
|
|
|
|
ret = krb5_init_context( &context );
|
|
if (ret) {
|
|
return 1;
|
|
}
|
|
|
|
#ifdef notdef
|
|
krb5_get_init_creds_opt_set_preauth_list(&get_options,
|
|
pre_auth_types, 1);
|
|
#endif
|
|
|
|
krb5_get_init_creds_opt_init( &get_options );
|
|
|
|
krb5_verify_init_creds_opt_init( &verify_options );
|
|
|
|
ret = krb5_parse_name( context, passwd->bv_val, &client );
|
|
|
|
if (ret) {
|
|
krb5_free_context( context );
|
|
return 1;
|
|
}
|
|
|
|
ret = krb5_get_init_creds_password( context,
|
|
&creds, client, cred->bv_val, NULL,
|
|
NULL, 0, NULL, &get_options );
|
|
|
|
if (ret) {
|
|
krb5_free_principal( context, client );
|
|
krb5_free_context( context );
|
|
return 1;
|
|
}
|
|
|
|
{
|
|
char *host = ldap_pvt_get_fqdn( NULL );
|
|
|
|
if( host == NULL ) {
|
|
krb5_free_principal( context, client );
|
|
krb5_free_context( context );
|
|
return 1;
|
|
}
|
|
|
|
ret = krb5_sname_to_principal( context,
|
|
host, "ldap", KRB5_NT_SRV_HST, &server );
|
|
|
|
ber_memfree( host );
|
|
}
|
|
|
|
if (ret) {
|
|
krb5_free_principal( context, client );
|
|
krb5_free_context( context );
|
|
return 1;
|
|
}
|
|
|
|
ret = krb5_verify_init_creds( context,
|
|
&creds, server, NULL, NULL, &verify_options );
|
|
|
|
krb5_free_principal( context, client );
|
|
krb5_free_principal( context, server );
|
|
krb5_free_cred_contents( context, &creds );
|
|
krb5_free_context( context );
|
|
|
|
rtn = !!ret;
|
|
}
|
|
#elif defined(HAVE_KRB4)
|
|
{
|
|
/* Borrowed from Heimdal kpopper */
|
|
/* Portions:
|
|
* Copyright (c) 1989 Regents of the University of California.
|
|
* All rights reserved. The Berkeley software License Agreement
|
|
* specifies the terms and conditions for redistribution.
|
|
*/
|
|
|
|
int status;
|
|
char lrealm[REALM_SZ];
|
|
char tkt[MAXHOSTNAMELEN];
|
|
|
|
status = krb_get_lrealm(lrealm,1);
|
|
if (status == KFAILURE) {
|
|
return 1;
|
|
}
|
|
|
|
snprintf(tkt, sizeof(tkt), "%s_slapd.%u",
|
|
TKT_ROOT, (unsigned)getpid());
|
|
krb_set_tkt_string (tkt);
|
|
|
|
status = krb_verify_user( passwd->bv_val, "", lrealm,
|
|
cred->bv_val, 1, "ldap");
|
|
|
|
dest_tkt(); /* no point in keeping the tickets */
|
|
|
|
return status == KFAILURE;
|
|
}
|
|
#endif
|
|
|
|
return rtn;
|
|
}
|
|
#endif /* SLAPD_KPASSWD */
|
|
|
|
#ifdef SLAPD_CRYPT
|
|
static int chk_crypt(
|
|
const struct pw_scheme *sc,
|
|
const struct berval * passwd,
|
|
const struct berval * cred )
|
|
{
|
|
char *cr;
|
|
int i;
|
|
|
|
for( i=0; i<cred->bv_len; i++) {
|
|
if(cred->bv_val[i] == '\0') {
|
|
return 1; /* NUL character in password */
|
|
}
|
|
}
|
|
|
|
if( cred->bv_val[i] != '\0' ) {
|
|
return -1; /* cred must behave like a string */
|
|
}
|
|
|
|
if( passwd->bv_len < 2 ) {
|
|
return -1; /* passwd must be at least two characters long */
|
|
}
|
|
|
|
for( i=0; i<passwd->bv_len; i++) {
|
|
if(passwd->bv_val[i] == '\0') {
|
|
return -1; /* NUL character in password */
|
|
}
|
|
}
|
|
|
|
if( passwd->bv_val[i] != '\0' ) {
|
|
return -1; /* passwd must behave like a string */
|
|
}
|
|
|
|
cr = crypt( cred->bv_val, passwd->bv_val );
|
|
|
|
if( cr == NULL || cr[0] == '\0' ) {
|
|
/* salt must have been invalid */
|
|
return -1;
|
|
}
|
|
|
|
return strcmp( passwd->bv_val, cr ) ? 1 : 0;
|
|
}
|
|
|
|
# if defined( HAVE_GETPWNAM ) && defined( HAVE_PW_PASSWD )
|
|
static int chk_unix(
|
|
const struct pw_scheme *sc,
|
|
const struct berval * passwd,
|
|
const struct berval * cred )
|
|
{
|
|
int i;
|
|
char *pw,*cr;
|
|
|
|
for( i=0; i<cred->bv_len; i++) {
|
|
if(cred->bv_val[i] == '\0') {
|
|
return -1; /* NUL character in password */
|
|
}
|
|
}
|
|
if( cred->bv_val[i] != '\0' ) {
|
|
return -1; /* cred must behave like a string */
|
|
}
|
|
|
|
for( i=0; i<passwd->bv_len; i++) {
|
|
if(passwd->bv_val[i] == '\0') {
|
|
return -1; /* NUL character in password */
|
|
}
|
|
}
|
|
|
|
if( passwd->bv_val[i] != '\0' ) {
|
|
return -1; /* passwd must behave like a string */
|
|
}
|
|
|
|
{
|
|
struct passwd *pwd = getpwnam(passwd->bv_val);
|
|
|
|
if(pwd == NULL) {
|
|
return -1; /* not found */
|
|
}
|
|
|
|
pw = pwd->pw_passwd;
|
|
}
|
|
# ifdef HAVE_GETSPNAM
|
|
{
|
|
struct spwd *spwd = getspnam(passwd->bv_val);
|
|
|
|
if(spwd != NULL) {
|
|
pw = spwd->sp_pwdp;
|
|
}
|
|
}
|
|
# endif
|
|
# ifdef HAVE_AIX_SECURITY
|
|
{
|
|
struct userpw *upw = getuserpw(passwd->bv_val);
|
|
|
|
if (upw != NULL) {
|
|
pw = upw->upw_passwd;
|
|
}
|
|
}
|
|
# endif
|
|
|
|
if( pw == NULL || pw[0] == '\0' || pw[1] == '\0' ) {
|
|
/* password must must be at least two characters long */
|
|
return -1;
|
|
}
|
|
|
|
cr = crypt(cred->bv_val, pw);
|
|
|
|
if( cr == NULL || cr[0] == '\0' ) {
|
|
/* salt must have been invalid */
|
|
return -1;
|
|
}
|
|
|
|
return strcmp(pw, cr) ? 1 : 0;
|
|
|
|
}
|
|
# endif
|
|
#endif
|
|
|
|
/* PASSWORD GENERATION ROUTINES */
|
|
|
|
#ifdef LUTIL_SHA1_BYTES
|
|
static struct berval *hash_ssha1(
|
|
const struct pw_scheme *scheme,
|
|
const struct berval *passwd )
|
|
{
|
|
lutil_SHA1_CTX SHA1context;
|
|
unsigned char SHA1digest[LUTIL_SHA1_BYTES];
|
|
unsigned char saltdata[4];
|
|
struct berval digest;
|
|
struct berval salt;
|
|
|
|
digest.bv_val = SHA1digest;
|
|
digest.bv_len = sizeof(SHA1digest);
|
|
salt.bv_val = saltdata;
|
|
salt.bv_len = sizeof(saltdata);
|
|
|
|
if( lutil_entropy( salt.bv_val, salt.bv_len) < 0 ) {
|
|
return NULL;
|
|
}
|
|
|
|
lutil_SHA1Init( &SHA1context );
|
|
lutil_SHA1Update( &SHA1context,
|
|
(const unsigned char *)passwd->bv_val, passwd->bv_len );
|
|
lutil_SHA1Update( &SHA1context,
|
|
(const unsigned char *)salt.bv_val, salt.bv_len );
|
|
lutil_SHA1Final( SHA1digest, &SHA1context );
|
|
|
|
return pw_string64( scheme, &digest, &salt);
|
|
}
|
|
|
|
static struct berval *hash_sha1(
|
|
const struct pw_scheme *scheme,
|
|
const struct berval *passwd )
|
|
{
|
|
lutil_SHA1_CTX SHA1context;
|
|
unsigned char SHA1digest[LUTIL_SHA1_BYTES];
|
|
struct berval digest;
|
|
digest.bv_val = SHA1digest;
|
|
digest.bv_len = sizeof(SHA1digest);
|
|
|
|
lutil_SHA1Init( &SHA1context );
|
|
lutil_SHA1Update( &SHA1context,
|
|
(const unsigned char *)passwd->bv_val, passwd->bv_len );
|
|
lutil_SHA1Final( SHA1digest, &SHA1context );
|
|
|
|
return pw_string64( scheme, &digest, NULL);
|
|
}
|
|
#endif
|
|
|
|
static struct berval *hash_smd5(
|
|
const struct pw_scheme *scheme,
|
|
const struct berval *passwd )
|
|
{
|
|
lutil_MD5_CTX MD5context;
|
|
unsigned char MD5digest[LUTIL_MD5_BYTES];
|
|
unsigned char saltdata[4];
|
|
struct berval digest;
|
|
struct berval salt;
|
|
|
|
digest.bv_val = MD5digest;
|
|
digest.bv_len = sizeof(MD5digest);
|
|
salt.bv_val = saltdata;
|
|
salt.bv_len = sizeof(saltdata);
|
|
|
|
if( lutil_entropy( salt.bv_val, salt.bv_len) < 0 ) {
|
|
return NULL;
|
|
}
|
|
|
|
lutil_MD5Init( &MD5context );
|
|
lutil_MD5Update( &MD5context,
|
|
(const unsigned char *) passwd->bv_val, passwd->bv_len );
|
|
lutil_MD5Update( &MD5context,
|
|
(const unsigned char *) salt.bv_val, salt.bv_len );
|
|
lutil_MD5Final( MD5digest, &MD5context );
|
|
|
|
return pw_string64( scheme, &digest, &salt );
|
|
}
|
|
|
|
static struct berval *hash_md5(
|
|
const struct pw_scheme *scheme,
|
|
const struct berval *passwd )
|
|
{
|
|
lutil_MD5_CTX MD5context;
|
|
unsigned char MD5digest[LUTIL_MD5_BYTES];
|
|
|
|
struct berval digest;
|
|
|
|
digest.bv_val = MD5digest;
|
|
digest.bv_len = sizeof(MD5digest);
|
|
|
|
lutil_MD5Init( &MD5context );
|
|
lutil_MD5Update( &MD5context,
|
|
(const unsigned char *) passwd->bv_val, passwd->bv_len );
|
|
lutil_MD5Final( MD5digest, &MD5context );
|
|
|
|
return pw_string64( scheme, &digest, NULL );
|
|
;
|
|
}
|
|
|
|
#ifdef SLAPD_LMHASH
|
|
/* pseudocode from RFC2433
|
|
* A.2 LmPasswordHash()
|
|
*
|
|
* LmPasswordHash(
|
|
* IN 0-to-14-oem-char Password,
|
|
* OUT 16-octet PasswordHash )
|
|
* {
|
|
* Set UcasePassword to the uppercased Password
|
|
* Zero pad UcasePassword to 14 characters
|
|
*
|
|
* DesHash( 1st 7-octets of UcasePassword,
|
|
* giving 1st 8-octets of PasswordHash )
|
|
*
|
|
* DesHash( 2nd 7-octets of UcasePassword,
|
|
* giving 2nd 8-octets of PasswordHash )
|
|
* }
|
|
*
|
|
*
|
|
* A.3 DesHash()
|
|
*
|
|
* DesHash(
|
|
* IN 7-octet Clear,
|
|
* OUT 8-octet Cypher )
|
|
* {
|
|
* *
|
|
* * Make Cypher an irreversibly encrypted form of Clear by
|
|
* * encrypting known text using Clear as the secret key.
|
|
* * The known text consists of the string
|
|
* *
|
|
* * KGS!@#$%
|
|
* *
|
|
*
|
|
* Set StdText to "KGS!@#$%"
|
|
* DesEncrypt( StdText, Clear, giving Cypher )
|
|
* }
|
|
*
|
|
*
|
|
* A.4 DesEncrypt()
|
|
*
|
|
* DesEncrypt(
|
|
* IN 8-octet Clear,
|
|
* IN 7-octet Key,
|
|
* OUT 8-octet Cypher )
|
|
* {
|
|
* *
|
|
* * Use the DES encryption algorithm [4] in ECB mode [9]
|
|
* * to encrypt Clear into Cypher such that Cypher can
|
|
* * only be decrypted back to Clear by providing Key.
|
|
* * Note that the DES algorithm takes as input a 64-bit
|
|
* * stream where the 8th, 16th, 24th, etc. bits are
|
|
* * parity bits ignored by the encrypting algorithm.
|
|
* * Unless you write your own DES to accept 56-bit input
|
|
* * without parity, you will need to insert the parity bits
|
|
* * yourself.
|
|
* *
|
|
* }
|
|
*/
|
|
|
|
static void lmPasswd_to_key(
|
|
const unsigned char *lmPasswd,
|
|
des_cblock *key)
|
|
{
|
|
/* make room for parity bits */
|
|
((char *)key)[0] = lmPasswd[0];
|
|
((char *)key)[1] = ((lmPasswd[0]&0x01)<<7) | (lmPasswd[1]>>1);
|
|
((char *)key)[2] = ((lmPasswd[1]&0x03)<<6) | (lmPasswd[2]>>2);
|
|
((char *)key)[3] = ((lmPasswd[2]&0x07)<<5) | (lmPasswd[3]>>3);
|
|
((char *)key)[4] = ((lmPasswd[3]&0x0F)<<4) | (lmPasswd[4]>>4);
|
|
((char *)key)[5] = ((lmPasswd[4]&0x1F)<<3) | (lmPasswd[5]>>5);
|
|
((char *)key)[6] = ((lmPasswd[5]&0x3F)<<2) | (lmPasswd[6]>>6);
|
|
((char *)key)[7] = ((lmPasswd[6]&0x7F)<<1);
|
|
|
|
des_set_odd_parity( key );
|
|
}
|
|
|
|
static struct berval *hash_lanman(
|
|
const struct pw_scheme *scheme,
|
|
const struct berval *passwd )
|
|
{
|
|
|
|
int i;
|
|
char UcasePassword[15];
|
|
des_cblock key;
|
|
des_key_schedule schedule;
|
|
des_cblock StdText = "KGS!@#$%";
|
|
des_cblock hash1, hash2;
|
|
char lmhash[33];
|
|
struct berval hash;
|
|
|
|
for( i=0; i<passwd->bv_len; i++) {
|
|
if(passwd->bv_val[i] == '\0') {
|
|
return NULL; /* NUL character in password */
|
|
}
|
|
}
|
|
|
|
if( passwd->bv_val[i] != '\0' ) {
|
|
return NULL; /* passwd must behave like a string */
|
|
}
|
|
|
|
strncpy( UcasePassword, passwd->bv_val, 14 );
|
|
UcasePassword[14] = '\0';
|
|
ldap_pvt_str2upper( UcasePassword );
|
|
|
|
lmPasswd_to_key( UcasePassword, &key );
|
|
des_set_key_unchecked( &key, schedule );
|
|
des_ecb_encrypt( &StdText, &hash1, schedule , DES_ENCRYPT );
|
|
|
|
lmPasswd_to_key( &UcasePassword[7], &key );
|
|
des_set_key_unchecked( &key, schedule );
|
|
des_ecb_encrypt( &StdText, &hash2, schedule , DES_ENCRYPT );
|
|
|
|
sprintf( lmhash, "%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
|
|
hash1[0],hash1[1],hash1[2],hash1[3],hash1[4],hash1[5],hash1[6],hash1[7],
|
|
hash2[0],hash2[1],hash2[2],hash2[3],hash2[4],hash2[5],hash2[6],hash2[7] );
|
|
|
|
hash.bv_val = lmhash;
|
|
hash.bv_len = 32;
|
|
|
|
return pw_string( scheme, &hash );
|
|
}
|
|
#endif /* SLAPD_LMHASH */
|
|
|
|
#ifdef SLAPD_CRYPT
|
|
static struct berval *hash_crypt(
|
|
const struct pw_scheme *scheme,
|
|
const struct berval *passwd )
|
|
{
|
|
struct berval hash;
|
|
unsigned char salt[32]; /* salt suitable for most anything */
|
|
int i;
|
|
|
|
for( i=0; i<passwd->bv_len; i++) {
|
|
if(passwd->bv_val[i] == '\0') {
|
|
return NULL; /* NUL character in password */
|
|
}
|
|
}
|
|
|
|
if( passwd->bv_val[i] != '\0' ) {
|
|
return NULL; /* passwd must behave like a string */
|
|
}
|
|
|
|
if( lutil_entropy( salt, sizeof( salt ) ) < 0 ) {
|
|
return NULL;
|
|
}
|
|
|
|
for( i=0; i< ( sizeof(salt) - 1 ); i++ ) {
|
|
salt[i] = crypt64[ salt[i] % (sizeof(crypt64)-1) ];
|
|
}
|
|
salt[sizeof( salt ) - 1 ] = '\0';
|
|
|
|
if( salt_format != NULL ) {
|
|
/* copy the salt we made into entropy before snprintfing
|
|
it back into the salt */
|
|
char entropy[sizeof(salt)];
|
|
strcpy( entropy, salt );
|
|
snprintf( salt, sizeof(entropy), salt_format, entropy );
|
|
}
|
|
|
|
hash.bv_val = crypt( passwd->bv_val, salt );
|
|
|
|
if( hash.bv_val == NULL ) return NULL;
|
|
|
|
hash.bv_len = strlen( hash.bv_val );
|
|
|
|
if( hash.bv_len == 0 ) {
|
|
return NULL;
|
|
}
|
|
|
|
return pw_string( scheme, &hash );
|
|
}
|
|
#endif
|
|
|
|
int lutil_salt_format(const char *format)
|
|
{
|
|
#ifdef SLAPD_CRYPT
|
|
free( salt_format );
|
|
|
|
salt_format = format != NULL ? strdup( format ) : NULL;
|
|
#endif
|
|
|
|
return 0;
|
|
}
|