]> git.sur5r.net Git - openldap/blobdiff - libraries/liblutil/passwd.c
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[openldap] / libraries / liblutil / passwd.c
index 99b09c37b99b09f14c6ee31dc8ce3349fb01d386..f16b49a2bc3f9d79f9b8717f175e3b8646458728 100644 (file)
@@ -1,8 +1,18 @@
 /* $OpenLDAP$ */
-/*
- * Copyright 1998-2002 The OpenLDAP Foundation, All Rights Reserved.
- * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2004 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
  */
+
 /*
  * int lutil_passwd(
  *     const struct berval *passwd,
 #      endif
 #endif
 
-#ifdef SLAPD_KPASSWD
-#      include <ac/krb.h>
-#      include <ac/krb5.h>
-#endif
-
-/* KPASSWD/krb.h brings in a conflicting des.h so don't use both.
- * configure currently requires OpenSSL to enable LMHASH. Obviously
- * this requirement can be fulfilled by the KRB DES library as well.
- */
-#if defined(SLAPD_LMHASH) && !defined(DES_ENCRYPT)
+#if defined(SLAPD_LMHASH)
 #      include <openssl/des.h>
 #endif /* SLAPD_LMHASH */
 
@@ -65,6 +66,7 @@
 #include <lber.h>
 
 #include "ldap_pvt.h"
+#include "lber_pvt.h"
 
 #include "lutil_md5.h"
 #include "lutil_sha1.h"
@@ -77,166 +79,139 @@ static const unsigned char crypt64[] =
 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;
+       LUTIL_PASSWD_CHK_FUNC *chk_fn;
+       LUTIL_PASSWD_HASH_FUNC *hash_fn;
+};
+
+struct pw_slist {
+       struct pw_slist *next;
+       struct pw_scheme s;
 };
 
 /* 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 );
+#define        SALT_SIZE       4
 
-#ifdef LUTIL_SHA1_BYTES
-static int chk_ssha1(
-       const struct pw_scheme *scheme,
-       const struct berval *passwd,
-       const struct berval *cred );
+static LUTIL_PASSWD_CHK_FUNC chk_md5;
+static LUTIL_PASSWD_CHK_FUNC chk_smd5;
+static LUTIL_PASSWD_HASH_FUNC hash_smd5;
+static LUTIL_PASSWD_HASH_FUNC hash_md5;
 
-static int chk_sha1(
-       const struct pw_scheme *scheme,
-       const struct berval *passwd,
-       const struct berval *cred );
+
+#ifdef LUTIL_SHA1_BYTES
+static LUTIL_PASSWD_CHK_FUNC chk_ssha1;
+static LUTIL_PASSWD_CHK_FUNC chk_sha1;
+static LUTIL_PASSWD_HASH_FUNC hash_sha1;
+static LUTIL_PASSWD_HASH_FUNC hash_ssha1;
 #endif
 
 #ifdef SLAPD_LMHASH
-static int chk_lanman(
-       const struct pw_scheme *scheme,
-       const struct berval *passwd,
-       const struct berval *cred );
+static LUTIL_PASSWD_CHK_FUNC chk_lanman;
+static LUTIL_PASSWD_HASH_FUNC hash_lanman;
 #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 );
+static LUTIL_PASSWD_CHK_FUNC chk_sasl;
 #endif
 
 #ifdef SLAPD_CRYPT
-static int chk_crypt(
-       const struct pw_scheme *scheme,
-       const struct berval *passwd,
-       const struct berval *cred );
+static LUTIL_PASSWD_CHK_FUNC chk_crypt;
+static LUTIL_PASSWD_HASH_FUNC hash_crypt;
 
 #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 );
+static LUTIL_PASSWD_CHK_FUNC chk_unix;
 #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
 
 #ifdef SLAPD_CLEARTEXT
-static struct berval *hash_clear(
-       const struct pw_scheme *scheme,
-       const struct berval *passwd );
+static LUTIL_PASSWD_HASH_FUNC hash_clear;
 #endif
 
-static const struct pw_scheme pw_schemes[] =
+static struct pw_slist *pw_schemes;
+
+static const struct pw_scheme pw_schemes_default[] =
 {
 #ifdef LUTIL_SHA1_BYTES
-       { {sizeof("{SSHA}")-1, "{SSHA}"},       chk_ssha1, hash_ssha1 },
-       { {sizeof("{SHA}")-1, "{SHA}"},         chk_sha1, hash_sha1 },
+       { BER_BVC("{SSHA}"),            chk_ssha1, hash_ssha1 },
+       { BER_BVC("{SHA}"),                     chk_sha1, hash_sha1 },
 #endif
 
-       { {sizeof("{SMD5}")-1, "{SMD5}"},       chk_smd5, hash_smd5 },
-       { {sizeof("{MD5}")-1, "{MD5}"},         chk_md5, hash_md5 },
+       { BER_BVC("{SMD5}"),            chk_smd5, hash_smd5 },
+       { BER_BVC("{MD5}"),                     chk_md5, hash_md5 },
 
 #ifdef SLAPD_LMHASH
-       { {sizeof("{LANMAN}")-1, "{LANMAN}"},   chk_lanman, hash_lanman },
+       { BER_BVC("{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 },
+       { BER_BVC("{SASL}"),            chk_sasl, NULL },
 #endif
 
 #ifdef SLAPD_CRYPT
-       { {sizeof("{CRYPT}")-1, "{CRYPT}"},     chk_crypt, hash_crypt },
+       { BER_BVC("{CRYPT}"),           chk_crypt, hash_crypt },
 # if defined( HAVE_GETPWNAM ) && defined( HAVE_PW_PASSWD )
-       { {sizeof("{UNIX}")-1, "{UNIX}"},       chk_unix, NULL },
+       { BER_BVC("{UNIX}"),            chk_unix, NULL },
 # endif
 #endif
 
 #ifdef SLAPD_CLEARTEXT
-       /* psuedo scheme */
-       { {0, "{CLEARTEXT}"}, NULL, hash_clear },
+       /* pseudo scheme */
+       { {0, "{CLEARTEXT}"},           NULL, hash_clear },
 #endif
 
-       { {0, NULL}, NULL, NULL }
+       { BER_BVNULL, NULL, NULL }
 };
 
+int lutil_passwd_add(
+       struct berval *scheme,
+       LUTIL_PASSWD_CHK_FUNC *chk,
+       LUTIL_PASSWD_HASH_FUNC *hash )
+{
+       struct pw_slist *ptr;
+
+       ptr = ber_memalloc( sizeof( struct pw_slist ));
+       if (!ptr) return -1;
+       ptr->next = pw_schemes;
+       ptr->s.name = *scheme;
+       ptr->s.chk_fn = chk;
+       ptr->s.hash_fn = hash;
+       pw_schemes = ptr;
+       return 0;
+}
+
+void lutil_passwd_init()
+{
+       struct pw_scheme *s;
+
+       for( s=(struct pw_scheme *)pw_schemes_default; s->name.bv_val; s++) {
+               if ( lutil_passwd_add( &s->name, s->chk_fn, s->hash_fn ) ) break;
+       }
+}
+
+void lutil_passwd_destroy()
+{
+       struct pw_slist *ptr, *next;
+
+       for( ptr=pw_schemes; ptr; ptr=next ) {
+               next = ptr->next;
+               ber_memfree( ptr );
+       }
+}
+
 static const struct pw_scheme *get_scheme(
        const char* scheme )
 {
-       int i;
+       struct pw_slist *pws;
 
-       for( i=0; pw_schemes[i].name.bv_val; i++) {
-               if( pw_schemes[i].name.bv_val == NULL ) continue;
+       if (!pw_schemes) lutil_passwd_init();
 
-               if( strcasecmp(scheme, pw_schemes[i].name.bv_val ) == 0 ) {
-                       return &pw_schemes[i];
+       for( pws=pw_schemes; pws; pws=pws->next ) {
+               if( strcasecmp(scheme, pws->s.name.bv_val ) == 0 ) {
+                       return &(pws->s);
                }
        }
 
@@ -299,9 +274,12 @@ int
 lutil_passwd(
        const struct berval *passwd,    /* stored passwd */
        const struct berval *cred,              /* user cred */
-       const char **schemes )
+       const char **schemes,
+       const char **text )
 {
-       int i;
+       struct pw_slist *pws;
+
+       if ( text ) *text = NULL;
 
        if (cred == NULL || cred->bv_len == 0 ||
                passwd == NULL || passwd->bv_len == 0 )
@@ -309,14 +287,16 @@ lutil_passwd(
                return -1;
        }
 
-       for( i=0; pw_schemes[i].name.bv_val != NULL; i++ ) {
-               if( pw_schemes[i].chk_fn ) {
+       if (!pw_schemes) lutil_passwd_init();
+
+       for( pws=pw_schemes; pws; pws=pws->next ) {
+               if( pws->s.chk_fn ) {
                        struct berval x;
-                       struct berval *p = passwd_scheme( &pw_schemes[i],
+                       struct berval *p = passwd_scheme( &(pws->s),
                                passwd, &x, schemes );
 
                        if( p != NULL ) {
-                               return (pw_schemes[i].chk_fn)( &pw_schemes[i], p, cred );
+                               return (pws->s.chk_fn)( &(pws->s.name), p, cred, text );
                        }
                }
        }
@@ -332,26 +312,20 @@ lutil_passwd(
        return 1;
 }
 
-struct berval * lutil_passwd_generate( ber_len_t len )
+int lutil_passwd_generate( struct berval *pw, ber_len_t len )
 {
-       struct berval *pw;
 
-       if( len < 1 ) return NULL;
-
-       pw = ber_memalloc( sizeof( struct berval ) );
-       if( pw == NULL ) return NULL;
+       if( len < 1 ) return -1;
 
        pw->bv_len = len;
        pw->bv_val = ber_memalloc( len + 1 );
 
        if( pw->bv_val == NULL ) {
-               ber_memfree( pw );
-               return NULL;
+               return -1;
        }
 
-       if( lutil_entropy( pw->bv_val, pw->bv_len) < 0 ) {
-               ber_bvfree( pw );
-               return NULL; 
+       if( lutil_entropy( (unsigned char *) pw->bv_val, pw->bv_len) < 0 ) {
+               return -1; 
        }
 
        for( len = 0; len < pw->bv_len; len++ ) {
@@ -361,66 +335,77 @@ struct berval * lutil_passwd_generate( ber_len_t len )
 
        pw->bv_val[len] = '\0';
        
-       return pw;
+       return 0;
 }
 
-struct berval * lutil_passwd_hash(
+int lutil_passwd_hash(
        const struct berval * passwd,
-       const char * method )
+       const char * method,
+       struct berval *hash,
+       const char **text )
 {
        const struct pw_scheme *sc = get_scheme( method );
 
-       if( sc == NULL ) return NULL;
-       if( ! sc->hash_fn ) return NULL;
+       hash->bv_val = NULL;
+       hash->bv_len = 0;
+
+       if( sc == NULL ) {
+               if( text ) *text = "scheme not recognized";
+               return -1;
+       }
 
-       return (sc->hash_fn)( sc, passwd );
+       if( ! sc->hash_fn ) {
+               if( text ) *text = "scheme provided no hash function";
+               return -1;
+       }
+
+       if( text ) *text = NULL;
+
+       return (sc->hash_fn)( &sc->name, passwd, hash, text );
 }
 
 /* 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 )
+static int pw_string(
+       const struct berval *sc,
+       struct berval *passwd )
 {
-       struct berval *pw = ber_memalloc( sizeof( struct berval ) );
-       if( pw == NULL ) return NULL;
+       struct berval pw;
 
-       pw->bv_len = sc->name.bv_len + passwd->bv_len;
-       pw->bv_val = ber_memalloc( pw->bv_len + 1 );
+       pw.bv_len = sc->bv_len + passwd->bv_len;
+       pw.bv_val = ber_memalloc( pw.bv_len + 1 );
 
-       if( pw->bv_val == NULL ) {
-               ber_memfree( pw );
-               return NULL;
+       if( pw.bv_val == NULL ) {
+               return LUTIL_PASSWD_ERR;
        }
 
-       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 );
+       AC_MEMCPY( pw.bv_val, sc->bv_val, sc->bv_len );
+       AC_MEMCPY( &pw.bv_val[sc->bv_len], passwd->bv_val, passwd->bv_len );
 
-       pw->bv_val[pw->bv_len] = '\0';
-       return pw;
+       pw.bv_val[pw.bv_len] = '\0';
+       *passwd = pw;
+
+       return LUTIL_PASSWD_OK;
 }
 #endif /* SLAPD_LMHASH || SLAPD_CRYPT */
 
-static struct berval * pw_string64(
-       const struct pw_scheme *sc,
+static int pw_string64(
+       const struct berval *sc,
        const struct berval *hash,
+       struct berval *b64,
        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;
+                       return LUTIL_PASSWD_ERR;
                }
 
                AC_MEMCPY( string.bv_val, hash->bv_val,
@@ -434,58 +419,63 @@ static struct berval * pw_string64(
        }
 
        b64len = LUTIL_BASE64_ENCODE_LEN( string.bv_len ) + 1;
-       b64->bv_len = b64len + sc->name.bv_len;
+       b64->bv_len = b64len + sc->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;
+               return LUTIL_PASSWD_ERR;
        }
 
-       AC_MEMCPY(b64->bv_val, sc->name.bv_val, sc->name.bv_len);
+       AC_MEMCPY(b64->bv_val, sc->bv_val, sc->bv_len);
 
        rc = lutil_b64_ntop(
-               string.bv_val, string.bv_len,
-               &b64->bv_val[sc->name.bv_len], b64len );
+               (unsigned char *) string.bv_val, string.bv_len,
+               &b64->bv_val[sc->bv_len], b64len );
 
        if( salt ) ber_memfree( string.bv_val );
        
        if( rc < 0 ) {
-               ber_bvfree( b64 );
-               return NULL;
+               return LUTIL_PASSWD_ERR;
        }
 
        /* recompute length */
-       b64->bv_len = sc->name.bv_len + rc;
+       b64->bv_len = sc->bv_len + rc;
        assert( strlen(b64->bv_val) == b64->bv_len );
-       return b64;
+       return LUTIL_PASSWD_OK;
 }
 
 /* PASSWORD CHECK ROUTINES */
 
 #ifdef LUTIL_SHA1_BYTES
 static int chk_ssha1(
-       const struct pw_scheme *sc,
+       const struct berval *sc,
        const struct berval * passwd,
-       const struct berval * cred )
+       const struct berval * cred,
+       const char **text )
 {
        lutil_SHA1_CTX SHA1context;
        unsigned char SHA1digest[LUTIL_SHA1_BYTES];
        int rc;
        unsigned char *orig_pass = NULL;
+
+       /* safety check -- must have some salt */
+       if (LUTIL_BASE64_DECODE_LEN(passwd->bv_len) <= sizeof(SHA1digest)) {
+               return LUTIL_PASSWD_ERR;
+       }
+
        /* 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;
+       if( orig_pass == NULL ) return LUTIL_PASSWD_ERR;
 
        rc = lutil_b64_pton(passwd->bv_val, orig_pass, passwd->bv_len);
 
-       if(rc < 0) {
+       /* safety check -- must have some salt */
+       if (rc <= (int)(sizeof(SHA1digest))) {
                ber_memfree(orig_pass);
-               return -1;
+               return LUTIL_PASSWD_ERR;
        }
  
        /* hash credentials with salt */
@@ -500,30 +490,36 @@ static int chk_ssha1(
        /* compare */
        rc = memcmp((char *)orig_pass, (char *)SHA1digest, sizeof(SHA1digest));
        ber_memfree(orig_pass);
-       return rc ? 1 : 0;
+       return rc ? LUTIL_PASSWD_ERR : LUTIL_PASSWD_OK;
 }
 
 static int chk_sha1(
-       const struct pw_scheme *sc,
+       const struct berval *sc,
        const struct berval * passwd,
-       const struct berval * cred )
+       const struct berval * cred,
+       const char **text )
 {
        lutil_SHA1_CTX SHA1context;
        unsigned char SHA1digest[LUTIL_SHA1_BYTES];
        int rc;
        unsigned char *orig_pass = NULL;
  
+       /* safety check */
+       if (LUTIL_BASE64_DECODE_LEN(passwd->bv_len) < sizeof(SHA1digest)) {
+               return LUTIL_PASSWD_ERR;
+       }
+
        /* 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;
+       if( orig_pass == NULL ) return LUTIL_PASSWD_ERR;
 
        rc = lutil_b64_pton(passwd->bv_val, orig_pass, passwd->bv_len);
 
        if( rc != sizeof(SHA1digest) ) {
                ber_memfree(orig_pass);
-               return -1;
+               return LUTIL_PASSWD_ERR;
        }
  
        /* hash credentials with salt */
@@ -535,30 +531,37 @@ static int chk_sha1(
        /* compare */
        rc = memcmp((char *)orig_pass, (char *)SHA1digest, sizeof(SHA1digest));
        ber_memfree(orig_pass);
-       return rc ? 1 : 0;
+       return rc ? LUTIL_PASSWD_ERR : LUTIL_PASSWD_OK;
 }
 #endif
 
 static int chk_smd5(
-       const struct pw_scheme *sc,
+       const struct berval *sc,
        const struct berval * passwd,
-       const struct berval * cred )
+       const struct berval * cred,
+       const char **text )
 {
        lutil_MD5_CTX MD5context;
        unsigned char MD5digest[LUTIL_MD5_BYTES];
        int rc;
        unsigned char *orig_pass = NULL;
 
+       /* safety check */
+       if (LUTIL_BASE64_DECODE_LEN(passwd->bv_len) <= sizeof(MD5digest)) {
+               return LUTIL_PASSWD_ERR;
+       }
+
        /* 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;
+       if( orig_pass == NULL ) return LUTIL_PASSWD_ERR;
 
        rc = lutil_b64_pton(passwd->bv_val, orig_pass, passwd->bv_len);
-       if ( rc < 0 ) {
+
+       if (rc <= (int)(sizeof(MD5digest))) {
                ber_memfree(orig_pass);
-               return -1;
+               return LUTIL_PASSWD_ERR;
        }
 
        /* hash credentials with salt */
@@ -574,29 +577,35 @@ static int chk_smd5(
        /* compare */
        rc = memcmp((char *)orig_pass, (char *)MD5digest, sizeof(MD5digest));
        ber_memfree(orig_pass);
-       return rc ? 1 : 0;
+       return rc ? LUTIL_PASSWD_ERR : LUTIL_PASSWD_OK;
 }
 
 static int chk_md5(
-       const struct pw_scheme *sc,
+       const struct berval *sc,
        const struct berval * passwd,
-       const struct berval * cred )
+       const struct berval * cred,
+       const char **text )
 {
        lutil_MD5_CTX MD5context;
        unsigned char MD5digest[LUTIL_MD5_BYTES];
        int rc;
        unsigned char *orig_pass = NULL;
 
+       /* safety check */
+       if (LUTIL_BASE64_DECODE_LEN(passwd->bv_len) < sizeof(MD5digest)) {
+               return LUTIL_PASSWD_ERR;
+       }
+
        /* 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;
+       if( orig_pass == NULL ) return LUTIL_PASSWD_ERR;
 
        rc = lutil_b64_pton(passwd->bv_val, orig_pass, passwd->bv_len);
        if ( rc != sizeof(MD5digest) ) {
                ber_memfree(orig_pass);
-               return -1;
+               return LUTIL_PASSWD_ERR;
        }
 
        /* hash credentials with salt */
@@ -609,19 +618,133 @@ static int chk_md5(
        /* compare */
        rc = memcmp((char *)orig_pass, (char *)MD5digest, sizeof(MD5digest));
        ber_memfree(orig_pass);
-       return rc ? 1 : 0;
+       return rc ? LUTIL_PASSWD_ERR : LUTIL_PASSWD_OK;
 }
 
 #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 int chk_lanman(
-       const struct pw_scheme *scheme,
+       const struct berval *scheme,
        const struct berval *passwd,
-       const struct berval *cred )
+       const struct berval *cred,
+       const char **text )
 {
-       struct berval *hash;
-
-       hash = hash_lanman( scheme, cred );
-       return memcmp( &hash->bv_val[scheme->name.bv_len], passwd->bv_val, 32);
+       int i;
+       char UcasePassword[15];
+       des_cblock key;
+       des_key_schedule schedule;
+       des_cblock StdText = "KGS!@#$%";
+       des_cblock PasswordHash1, PasswordHash2;
+       char PasswordHash[33], storedPasswordHash[33];
+       
+       for( i=0; i<cred->bv_len; i++) {
+               if(cred->bv_val[i] == '\0') {
+                       return LUTIL_PASSWD_ERR;        /* NUL character in password */
+               }
+       }
+       
+       if( cred->bv_val[i] != '\0' ) {
+               return LUTIL_PASSWD_ERR;        /* passwd must behave like a string */
+       }
+       
+       strncpy( UcasePassword, cred->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, &PasswordHash1, schedule , DES_ENCRYPT );
+       
+       lmPasswd_to_key( &UcasePassword[7], &key );
+       des_set_key_unchecked( &key, schedule );
+       des_ecb_encrypt( &StdText, &PasswordHash2, schedule , DES_ENCRYPT );
+       
+       sprintf( PasswordHash, "%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x", 
+               PasswordHash1[0],PasswordHash1[1],PasswordHash1[2],PasswordHash1[3],
+               PasswordHash1[4],PasswordHash1[5],PasswordHash1[6],PasswordHash1[7],
+               PasswordHash2[0],PasswordHash2[1],PasswordHash2[2],PasswordHash2[3],
+               PasswordHash2[4],PasswordHash2[5],PasswordHash2[6],PasswordHash2[7] );
+       
+       /* as a precaution convert stored password hash to lower case */
+       strncpy( storedPasswordHash, passwd->bv_val, 32 );
+       storedPasswordHash[32] = '\0';
+       ldap_pvt_str2lower( storedPasswordHash );
+       
+       return memcmp( PasswordHash, storedPasswordHash, 32) ? LUTIL_PASSWD_ERR : LUTIL_PASSWD_OK;
 }
 #endif /* SLAPD_LMHASH */
 
@@ -631,50 +754,50 @@ sasl_conn_t *lutil_passwd_sasl_conn = NULL;
 #endif
 
 static int chk_sasl(
-       const struct pw_scheme *sc,
+       const struct berval *sc,
        const struct berval * passwd,
-       const struct berval * cred )
+       const struct berval * cred,
+       const char **text )
 {
        unsigned int i;
        int rtn;
 
        for( i=0; i<cred->bv_len; i++) {
                if(cred->bv_val[i] == '\0') {
-                       return 1;       /* NUL character in password */
+                       return LUTIL_PASSWD_ERR;        /* NUL character in password */
                }
        }
 
        if( cred->bv_val[i] != '\0' ) {
-               return 1;       /* cred must behave like a string */
+               return LUTIL_PASSWD_ERR;        /* 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 */
+                       return LUTIL_PASSWD_ERR;        /* NUL character in password */
                }
        }
 
        if( passwd->bv_val[i] != '\0' ) {
-               return 1;       /* passwd must behave like a string */
+               return LUTIL_PASSWD_ERR;        /* passwd must behave like a string */
        }
 
-       rtn = 1;
+       rtn = LUTIL_PASSWD_ERR;
 
 #ifdef HAVE_CYRUS_SASL
        if( lutil_passwd_sasl_conn != NULL ) {
                int sc;
 # if SASL_VERSION_MAJOR < 2
-               const char *errstr = NULL;
                sc = sasl_checkpass( lutil_passwd_sasl_conn,
                        passwd->bv_val, passwd->bv_len,
                        cred->bv_val, cred->bv_len,
-                       &errstr );
+                       text );
 # else
                sc = sasl_checkpass( lutil_passwd_sasl_conn,
                        passwd->bv_val, passwd->bv_len,
                        cred->bv_val, cred->bv_len );
 # endif
-               rtn = ( sc != SASL_OK );
+               rtn = ( sc != SASL_OK ) ? LUTIL_PASSWD_ERR : LUTIL_PASSWD_OK;
        }
 #endif
 
@@ -682,255 +805,84 @@ static int chk_sasl(
 }
 #endif
 
-#ifdef SLAPD_KPASSWD
-static int chk_kerberos(
-       const struct pw_scheme *sc,
-       const struct berval * passwd,
-       const struct berval * cred )
-{
-       unsigned 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 *sc,
        const struct berval * passwd,
-       const struct berval * cred )
+       const struct berval * cred,
+       const char **text )
 {
        char *cr;
        unsigned int i;
 
        for( i=0; i<cred->bv_len; i++) {
                if(cred->bv_val[i] == '\0') {
-                       return 1;       /* NUL character in password */
+                       return LUTIL_PASSWD_ERR;        /* NUL character in password */
                }
        }
 
        if( cred->bv_val[i] != '\0' ) {
-               return -1;      /* cred must behave like a string */
+               return LUTIL_PASSWD_ERR;        /* cred must behave like a string */
        }
 
        if( passwd->bv_len < 2 ) {
-               return -1;      /* passwd must be at least two characters long */
+               return LUTIL_PASSWD_ERR;        /* 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 */
+                       return LUTIL_PASSWD_ERR;        /* NUL character in password */
                }
        }
 
        if( passwd->bv_val[i] != '\0' ) {
-               return -1;      /* passwd must behave like a string */
+               return LUTIL_PASSWD_ERR;        /* 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 LUTIL_PASSWD_ERR;
        }
 
-       return strcmp( passwd->bv_val, cr ) ? 1 : 0;
+       return strcmp( passwd->bv_val, cr ) ? LUTIL_PASSWD_ERR : LUTIL_PASSWD_OK;
 }
 
 # if defined( HAVE_GETPWNAM ) && defined( HAVE_PW_PASSWD )
 static int chk_unix(
-       const struct pw_scheme *sc,
+       const struct berval *sc,
        const struct berval * passwd,
-       const struct berval * cred )
+       const struct berval * cred,
+       const char **text )
 {
        unsigned 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 */
+                       return LUTIL_PASSWD_ERR;        /* NUL character in password */
                }
        }
        if( cred->bv_val[i] != '\0' ) {
-               return -1;      /* cred must behave like a string */
+               return LUTIL_PASSWD_ERR;        /* 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 */
+                       return LUTIL_PASSWD_ERR;        /* NUL character in password */
                }
        }
 
        if( passwd->bv_val[i] != '\0' ) {
-               return -1;      /* passwd must behave like a string */
+               return LUTIL_PASSWD_ERR;        /* passwd must behave like a string */
        }
 
        {
                struct passwd *pwd = getpwnam(passwd->bv_val);
 
                if(pwd == NULL) {
-                       return -1;      /* not found */
+                       return LUTIL_PASSWD_ERR;        /* not found */
                }
 
                pw = pwd->pw_passwd;
@@ -956,17 +908,17 @@ static int chk_unix(
 
        if( pw == NULL || pw[0] == '\0' || pw[1] == '\0' ) {
                /* password must must be at least two characters long */
-               return -1;
+               return LUTIL_PASSWD_ERR;
        }
 
        cr = crypt(cred->bv_val, pw);
 
        if( cr == NULL || cr[0] == '\0' ) {
                /* salt must have been invalid */
-               return -1;
+               return LUTIL_PASSWD_ERR;
        }
 
-       return strcmp(pw, cr) ? 1 : 0;
+       return strcmp(pw, cr) ? LUTIL_PASSWD_ERR : LUTIL_PASSWD_OK;
 
 }
 # endif
@@ -975,23 +927,25 @@ static int chk_unix(
 /* PASSWORD GENERATION ROUTINES */
 
 #ifdef LUTIL_SHA1_BYTES
-static struct berval *hash_ssha1(
-       const struct pw_scheme *scheme,
-       const struct berval  *passwd )
+static int hash_ssha1(
+       const struct berval *scheme,
+       const struct berval  *passwd,
+       struct berval *hash,
+       const char **text )
 {
        lutil_SHA1_CTX  SHA1context;
        unsigned char   SHA1digest[LUTIL_SHA1_BYTES];
-       unsigned char   saltdata[4];
+       char            saltdata[SALT_SIZE];
        struct berval digest;
        struct berval salt;
 
-       digest.bv_val = SHA1digest;
+       digest.bv_val = (char *) 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
+       if( lutil_entropy( (unsigned char *) salt.bv_val, salt.bv_len) < 0 ) {
+               return LUTIL_PASSWD_ERR
        }
 
        lutil_SHA1Init( &SHA1context );
@@ -1001,17 +955,19 @@ static struct berval *hash_ssha1(
                (const unsigned char *)salt.bv_val, salt.bv_len );
        lutil_SHA1Final( SHA1digest, &SHA1context );
 
-       return pw_string64( scheme, &digest, &salt);
+       return pw_string64( scheme, &digest, hash, &salt);
 }
 
-static struct berval *hash_sha1(
-       const struct pw_scheme *scheme,
-       const struct berval  *passwd )
+static int hash_sha1(
+       const struct berval *scheme,
+       const struct berval  *passwd,
+       struct berval *hash,
+       const char **text )
 {
        lutil_SHA1_CTX  SHA1context;
        unsigned char   SHA1digest[LUTIL_SHA1_BYTES];
        struct berval digest;
-       digest.bv_val = SHA1digest;
+       digest.bv_val = (char *) SHA1digest;
        digest.bv_len = sizeof(SHA1digest);
      
        lutil_SHA1Init( &SHA1context );
@@ -1019,27 +975,29 @@ static struct berval *hash_sha1(
                (const unsigned char *)passwd->bv_val, passwd->bv_len );
        lutil_SHA1Final( SHA1digest, &SHA1context );
             
-       return pw_string64( scheme, &digest, NULL);
+       return pw_string64( scheme, &digest, hash, NULL);
 }
 #endif
 
-static struct berval *hash_smd5(
-       const struct pw_scheme *scheme,
-       const struct berval  *passwd )
+static int hash_smd5(
+       const struct berval *scheme,
+       const struct berval  *passwd,
+       struct berval *hash,
+       const char **text )
 {
        lutil_MD5_CTX   MD5context;
        unsigned char   MD5digest[LUTIL_MD5_BYTES];
-       unsigned char   saltdata[4];
+       char            saltdata[SALT_SIZE];
        struct berval digest;
        struct berval salt;
 
-       digest.bv_val = MD5digest;
+       digest.bv_val = (char *) 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
+       if( lutil_entropy( (unsigned char *) salt.bv_val, salt.bv_len) < 0 ) {
+               return LUTIL_PASSWD_ERR
        }
 
        lutil_MD5Init( &MD5context );
@@ -1049,19 +1007,21 @@ static struct berval *hash_smd5(
                (const unsigned char *) salt.bv_val, salt.bv_len );
        lutil_MD5Final( MD5digest, &MD5context );
 
-       return pw_string64( scheme, &digest, &salt );
+       return pw_string64( scheme, &digest, hash, &salt );
 }
 
-static struct berval *hash_md5(
-       const struct pw_scheme *scheme,
-       const struct berval  *passwd )
+static int hash_md5(
+       const struct berval *scheme,
+       const struct berval  *passwd,
+       struct berval *hash,
+       const char **text )
 {
        lutil_MD5_CTX   MD5context;
        unsigned char   MD5digest[LUTIL_MD5_BYTES];
 
        struct berval digest;
 
-       digest.bv_val = MD5digest;
+       digest.bv_val = (char *) MD5digest;
        digest.bv_len = sizeof(MD5digest);
 
        lutil_MD5Init( &MD5context );
@@ -1069,89 +1029,16 @@ static struct berval *hash_md5(
                (const unsigned char *) passwd->bv_val, passwd->bv_len );
        lutil_MD5Final( MD5digest, &MD5context );
 
-       return pw_string64( scheme, &digest, NULL );
+       return pw_string64( scheme, &digest, hash, 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 )
+static int hash_lanman(
+       const struct berval *scheme,
+       const struct berval *passwd,
+       struct berval *hash,
+       const char **text )
 {
 
        int i;
@@ -1159,18 +1046,17 @@ static struct berval *hash_lanman(
        des_cblock key;
        des_key_schedule schedule;
        des_cblock StdText = "KGS!@#$%";
-       des_cblock hash1, hash2;
-       char lmhash[33];
-       struct berval hash;
+       des_cblock PasswordHash1, PasswordHash2;
+       char PasswordHash[33];
        
        for( i=0; i<passwd->bv_len; i++) {
                if(passwd->bv_val[i] == '\0') {
-                       return NULL;    /* NUL character in password */
+                       return LUTIL_PASSWD_ERR;        /* NUL character in password */
                }
        }
        
        if( passwd->bv_val[i] != '\0' ) {
-               return NULL;    /* passwd must behave like a string */
+               return LUTIL_PASSWD_ERR;        /* passwd must behave like a string */
        }
        
        strncpy( UcasePassword, passwd->bv_val, 14 );
@@ -1179,44 +1065,47 @@ static struct berval *hash_lanman(
        
        lmPasswd_to_key( UcasePassword, &key );
        des_set_key_unchecked( &key, schedule );
-       des_ecb_encrypt( &StdText, &hash1, schedule , DES_ENCRYPT );
+       des_ecb_encrypt( &StdText, &PasswordHash1, schedule , DES_ENCRYPT );
        
        lmPasswd_to_key( &UcasePassword[7], &key );
        des_set_key_unchecked( &key, schedule );
-       des_ecb_encrypt( &StdText, &hash2, schedule , DES_ENCRYPT );
+       des_ecb_encrypt( &StdText, &PasswordHash2, 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] );
+       sprintf( PasswordHash, "%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x", 
+               PasswordHash1[0],PasswordHash1[1],PasswordHash1[2],PasswordHash1[3],
+               PasswordHash1[4],PasswordHash1[5],PasswordHash1[6],PasswordHash1[7],
+               PasswordHash2[0],PasswordHash2[1],PasswordHash2[2],PasswordHash2[3],
+               PasswordHash2[4],PasswordHash2[5],PasswordHash2[6],PasswordHash2[7] );
        
-       hash.bv_val = lmhash;
-       hash.bv_len = 32;
+       hash->bv_val = PasswordHash;
+       hash->bv_len = 32;
        
-       return pw_string( scheme, &hash );
+       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 )
+static int hash_crypt(
+       const struct berval *scheme,
+       const struct berval *passwd,
+       struct berval *hash,
+       const char **text )
 {
-       struct berval hash;
        unsigned char salt[32]; /* salt suitable for most anything */
        unsigned int i;
 
        for( i=0; i<passwd->bv_len; i++) {
                if(passwd->bv_val[i] == '\0') {
-                       return NULL;    /* NUL character in password */
+                       return LUTIL_PASSWD_ERR;        /* NUL character in password */
                }
        }
 
        if( passwd->bv_val[i] != '\0' ) {
-               return NULL;    /* passwd must behave like a string */
+               return LUTIL_PASSWD_ERR;        /* passwd must behave like a string */
        }
 
        if( lutil_entropy( salt, sizeof( salt ) ) < 0 ) {
-               return NULL
+               return LUTIL_PASSWD_ERR
        }
 
        for( i=0; i< ( sizeof(salt) - 1 ); i++ ) {
@@ -1228,21 +1117,21 @@ static struct berval *hash_crypt(
                /* 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 );
+               strcpy( entropy, (char *) salt );
+               snprintf( (char *) salt, sizeof(entropy), salt_format, entropy );
        }
 
-       hash.bv_val = crypt( passwd->bv_val, salt );
+       hash->bv_val = crypt( passwd->bv_val, (char *) salt );
 
-       if( hash.bv_val == NULL ) return NULL;
+       if( hash->bv_val == NULL ) return -1;
 
-       hash.bv_len = strlen( hash.bv_val );
+       hash->bv_len = strlen( hash->bv_val );
 
-       if( hash.bv_len == 0 ) {
-               return NULL;
+       if( hash->bv_len == 0 ) {
+               return LUTIL_PASSWD_ERR;
        }
 
-       return pw_string( scheme, &hash );
+       return pw_string( scheme, hash );
 }
 #endif
 
@@ -1258,12 +1147,14 @@ int lutil_salt_format(const char *format)
 }
 
 #ifdef SLAPD_CLEARTEXT
-static struct berval *hash_clear(
-       const struct pw_scheme *scheme,
-       const struct berval  *passwd )
+static int hash_clear(
+       const struct berval *scheme,
+       const struct berval  *passwd,
+       struct berval *hash,
+       const char **text )
 {
-       return ber_bvdup( (struct berval *) passwd );
+       ber_dupbv( hash, (struct berval *)passwd );
+       return LUTIL_PASSWD_OK;
 }
 #endif
 
-