Adding upstream version 2:4.20.0+dfsg.upstream/2%4.20.0+dfsg

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 908 insertions, 0 deletions

diff --git a/source3/passdb/pdb_nds.c b/source3/passdb/pdb_nds.c
new file mode 100644
index 0000000..fc0d19b
--- /dev/null
+++ b/source3/passdb/pdb_nds.c
@@ -0,0 +1,908 @@
+/* 
+   Unix SMB/CIFS Implementation.
+   NDS LDAP helper functions for SAMBA
+   Copyright (C) Vince Brimhall			2004-2005
+    
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+   
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+   
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+   
+*/
+
+#include "includes.h"
+#include "passdb.h"
+
+#include <lber.h>
+#include <ldap.h>
+
+#include "smbldap.h"
+#include "passdb/pdb_ldap.h"
+#include "passdb/pdb_nds.h"
+
+#define NMASLDAP_GET_LOGIN_CONFIG_REQUEST	"2.16.840.1.113719.1.39.42.100.3"
+#define NMASLDAP_GET_LOGIN_CONFIG_RESPONSE	"2.16.840.1.113719.1.39.42.100.4"
+#define NMASLDAP_SET_PASSWORD_REQUEST		"2.16.840.1.113719.1.39.42.100.11"
+#define NMASLDAP_SET_PASSWORD_RESPONSE		"2.16.840.1.113719.1.39.42.100.12"
+#define NMASLDAP_GET_PASSWORD_REQUEST		"2.16.840.1.113719.1.39.42.100.13"
+#define NMASLDAP_GET_PASSWORD_RESPONSE		"2.16.840.1.113719.1.39.42.100.14"
+
+#define NMAS_LDAP_EXT_VERSION				1
+
+/**********************************************************************
+ Take the request BER value and input data items and BER encodes the
+ data into the BER value
+**********************************************************************/
+
+static int berEncodePasswordData(
+	struct berval **requestBV,
+	const char    *objectDN,
+	const char    *password,
+	const char    *password2)
+{
+	int err = 0, rc=0;
+	BerElement *requestBer = NULL;
+
+	const char    * utf8ObjPtr = NULL;
+	int     utf8ObjSize = 0;
+	const char    * utf8PwdPtr = NULL;
+	int     utf8PwdSize = 0;
+	const char    * utf8Pwd2Ptr = NULL;
+	int     utf8Pwd2Size = 0;
+
+
+	/* Convert objectDN and tag strings from Unicode to UTF-8 */
+	utf8ObjSize = strlen(objectDN)+1;
+	utf8ObjPtr = objectDN;
+
+	if (password != NULL)
+	{
+		utf8PwdSize = strlen(password)+1;
+		utf8PwdPtr = password;
+	}
+
+	if (password2 != NULL)
+	{
+		utf8Pwd2Size = strlen(password2)+1;
+		utf8Pwd2Ptr = password2;
+	}
+
+	/* Allocate a BerElement for the request parameters. */
+	if((requestBer = ber_alloc()) == NULL)
+	{
+		err = LDAP_ENCODING_ERROR;
+		goto Cleanup;
+	}
+
+	if (password != NULL && password2 != NULL)
+	{
+		/* BER encode the NMAS Version, the objectDN, and the password */
+		rc = ber_printf(requestBer, "{iooo}", NMAS_LDAP_EXT_VERSION, utf8ObjPtr, utf8ObjSize, utf8PwdPtr, utf8PwdSize, utf8Pwd2Ptr, utf8Pwd2Size);
+	}
+	else if (password != NULL)
+	{
+		/* BER encode the NMAS Version, the objectDN, and the password */
+		rc = ber_printf(requestBer, "{ioo}", NMAS_LDAP_EXT_VERSION, utf8ObjPtr, utf8ObjSize, utf8PwdPtr, utf8PwdSize);
+	}
+	else
+	{
+		/* BER encode the NMAS Version and the objectDN */
+		rc = ber_printf(requestBer, "{io}", NMAS_LDAP_EXT_VERSION, utf8ObjPtr, utf8ObjSize);
+	}
+
+	if (rc < 0)
+	{
+		err = LDAP_ENCODING_ERROR;
+		goto Cleanup;
+	}
+	else
+	{
+		err = 0;
+	}
+
+	/* Convert the BER we just built to a berval that we'll send with the extended request. */
+	if(ber_flatten(requestBer, requestBV) == LBER_ERROR)
+	{
+		err = LDAP_ENCODING_ERROR;
+		goto Cleanup;
+	}
+
+Cleanup:
+
+	if(requestBer)
+	{
+		ber_free(requestBer, 1);
+	}
+
+	return err;
+}
+
+/**********************************************************************
+ Take the request BER value and input data items and BER encodes the
+ data into the BER value
+**********************************************************************/
+
+static int berEncodeLoginData(
+	struct berval **requestBV,
+	char     *objectDN,
+	unsigned int  methodIDLen,
+	unsigned int *methodID,
+	char     *tag,
+	size_t   putDataLen,
+	void     *putData)
+{
+	int err = 0;
+	BerElement *requestBer = NULL;
+
+	unsigned int i;
+	unsigned int elemCnt = methodIDLen / sizeof(unsigned int);
+
+	char	*utf8ObjPtr=NULL;
+	int     utf8ObjSize = 0;
+
+	char    *utf8TagPtr = NULL;
+	int     utf8TagSize = 0;
+
+	utf8ObjPtr = objectDN;
+	utf8ObjSize = strlen(utf8ObjPtr)+1;
+
+	utf8TagPtr = tag;
+	utf8TagSize = strlen(utf8TagPtr)+1;
+
+	/* Allocate a BerElement for the request parameters. */
+	if((requestBer = ber_alloc()) == NULL)
+	{
+		err = LDAP_ENCODING_ERROR;
+		goto Cleanup;
+	}
+
+	/* BER encode the NMAS Version and the objectDN */
+	err = (ber_printf(requestBer, "{io", NMAS_LDAP_EXT_VERSION, utf8ObjPtr, utf8ObjSize) < 0) ? LDAP_ENCODING_ERROR : 0;
+
+	/* BER encode the MethodID Length and value */
+	if (!err)
+	{
+		err = (ber_printf(requestBer, "{i{", methodIDLen) < 0) ? LDAP_ENCODING_ERROR : 0;
+	}
+
+	for (i = 0; !err && i < elemCnt; i++)
+	{
+		err = (ber_printf(requestBer, "i", methodID[i]) < 0) ? LDAP_ENCODING_ERROR : 0;
+	}
+
+	if (!err)
+	{
+		err = (ber_printf(requestBer, "}}", 0) < 0) ? LDAP_ENCODING_ERROR : 0;
+	}
+
+	if (!err) {
+		if (putData) {
+		/* BER Encode the tag and data */
+			err = (ber_printf(requestBer, "oio}", utf8TagPtr,
+					  utf8TagSize, putDataLen, putData,
+					  putDataLen) < 0)
+				? LDAP_ENCODING_ERROR : 0;
+		} else {
+		/* BER Encode the tag */
+			err = (ber_printf(requestBer, "o}", utf8TagPtr,
+					  utf8TagSize) < 0)
+				? LDAP_ENCODING_ERROR : 0;
+		}
+	}
+
+	if (err)
+	{
+		goto Cleanup;
+	}
+
+	/* Convert the BER we just built to a berval that we'll send with the extended request. */
+	if(ber_flatten(requestBer, requestBV) == LBER_ERROR)
+	{
+		err = LDAP_ENCODING_ERROR;
+		goto Cleanup;
+	}
+
+Cleanup:
+
+	if(requestBer)
+	{
+		ber_free(requestBer, 1);
+	}
+
+	return err;
+}
+
+/**********************************************************************
+ Takes the reply BER Value and decodes the NMAS server version and
+ return code and if a non null retData buffer was supplied, tries to
+ decode the return data and length
+**********************************************************************/
+
+static int berDecodeLoginData(
+	struct berval *replyBV,
+	int      *serverVersion,
+	size_t   *retDataLen,
+	void     *retData )
+{
+	int err = 0;
+	BerElement *replyBer = NULL;
+	char    *retOctStr = NULL;
+	size_t  retOctStrLen = 0;
+
+	if((replyBer = ber_init(replyBV)) == NULL)
+	{
+		err = LDAP_OPERATIONS_ERROR;
+		goto Cleanup;
+	}
+
+	if(retData)
+	{
+		retOctStrLen = *retDataLen + 1;
+		retOctStr = SMB_MALLOC_ARRAY(char, retOctStrLen);
+		if(!retOctStr)
+		{
+			err = LDAP_OPERATIONS_ERROR;
+			goto Cleanup;
+		}
+	
+		if(ber_scanf(replyBer, "{iis}", serverVersion, &err, retOctStr, &retOctStrLen) != -1)
+		{
+			if (*retDataLen >= retOctStrLen)
+			{
+				memcpy(retData, retOctStr, retOctStrLen);
+			}
+			else if (!err)
+			{	
+				err = LDAP_NO_MEMORY;
+			}
+
+			*retDataLen = retOctStrLen;
+		}
+		else if (!err)
+		{
+			err = LDAP_DECODING_ERROR;
+		}
+	}
+	else
+	{
+		if(ber_scanf(replyBer, "{ii}", serverVersion, &err) == -1)
+		{
+			if (!err)
+			{
+				err = LDAP_DECODING_ERROR;
+			}
+		}
+	}
+
+Cleanup:
+
+	if(replyBer)
+	{
+		ber_free(replyBer, 1);
+	}
+
+	if (retOctStr != NULL)
+	{
+		memset(retOctStr, 0, retOctStrLen);
+		free(retOctStr);
+	}
+
+	return err;
+}
+
+/**********************************************************************
+ Retrieves data in the login configuration of the specified object
+ that is tagged with the specified methodID and tag.
+**********************************************************************/
+
+static int getLoginConfig(
+	LDAP	 *ld,
+	char     *objectDN,
+	unsigned int  methodIDLen,
+	unsigned int *methodID,
+	char     *tag,
+	size_t   *dataLen,
+	void     *data )
+{
+	int     err = 0;
+	struct  berval *requestBV = NULL;
+	char    *replyOID = NULL;
+	struct  berval *replyBV = NULL;
+	int     serverVersion = 0;
+
+	/* Validate unicode parameters. */
+	if((strlen(objectDN) == 0) || ld == NULL)
+	{
+		return LDAP_NO_SUCH_ATTRIBUTE;
+	}
+
+	err = berEncodeLoginData(&requestBV, objectDN, methodIDLen, methodID, tag, 0, NULL);
+	if(err)
+	{
+		goto Cleanup;
+	}
+
+	/* Call the ldap_extended_operation (synchronously) */
+	if((err = ldap_extended_operation_s(ld, NMASLDAP_GET_LOGIN_CONFIG_REQUEST,
+					requestBV, NULL, NULL, &replyOID, &replyBV)))
+	{
+		goto Cleanup;
+	}
+
+	/* Make sure there is a return OID */
+	if(!replyOID)
+	{
+		err = LDAP_NOT_SUPPORTED;
+		goto Cleanup;
+	}
+
+	/* Is this what we were expecting to get back. */
+	if(strcmp(replyOID, NMASLDAP_GET_LOGIN_CONFIG_RESPONSE))
+	{
+		err = LDAP_NOT_SUPPORTED;
+		goto Cleanup;
+	}
+
+	/* Do we have a good returned berval? */
+	if(!replyBV)
+	{
+		/* No; returned berval means we experienced a rather drastic error. */
+		/* Return operations error. */
+		err = LDAP_OPERATIONS_ERROR;
+		goto Cleanup;
+	}
+
+	err = berDecodeLoginData(replyBV, &serverVersion, dataLen, data);
+
+	if(serverVersion != NMAS_LDAP_EXT_VERSION)
+	{
+		err = LDAP_OPERATIONS_ERROR;
+		goto Cleanup;
+	}
+
+Cleanup:
+
+	if(replyBV)
+	{
+		ber_bvfree(replyBV);
+	}
+
+	/* Free the return OID string if one was returned. */
+	if(replyOID)
+	{
+		ldap_memfree(replyOID);
+	}
+
+	/* Free memory allocated while building the request ber and berval. */
+	if(requestBV)
+	{
+		ber_bvfree(requestBV);
+	}
+
+	/* Return the appropriate error/success code. */
+	return err;
+}
+
+/**********************************************************************
+ Attempts to get the Simple Password
+**********************************************************************/
+
+static int nmasldap_get_simple_pwd(
+	LDAP	 *ld,
+	char     *objectDN,
+	size_t	 pwdLen,
+	char     *pwd )
+{
+	int err = 0;
+	unsigned int methodID = 0;
+	unsigned int methodIDLen = sizeof(methodID);
+	char    tag[] = {'P','A','S','S','W','O','R','D',' ','H','A','S','H',0};
+	char    *pwdBuf=NULL;
+	size_t  pwdBufLen, bufferLen;
+
+	bufferLen = pwdBufLen = pwdLen+2;
+	pwdBuf = SMB_MALLOC_ARRAY(char, pwdBufLen); /* digest and null */
+	if(pwdBuf == NULL)
+	{
+		return LDAP_NO_MEMORY;
+	}
+
+	err = getLoginConfig(ld, objectDN, methodIDLen, &methodID, tag, &pwdBufLen, pwdBuf);
+	if (err == 0)
+	{
+		if (pwdBufLen !=0)
+		{
+			pwdBuf[pwdBufLen] = 0;       /* null terminate */
+
+			switch (pwdBuf[0])
+			{
+				case 1:  /* cleartext password  */
+					break;
+				case 2:  /* SHA1 HASH */
+				case 3:  /* MD5_ID */
+				case 4:  /* UNIXCrypt_ID */
+				case 8:  /* SSHA_ID */
+				default: /* Unknown digest */
+					err = LDAP_INAPPROPRIATE_AUTH;  /* only return clear text */
+					break;
+			}
+
+			if (!err)
+			{
+				if (pwdLen >= pwdBufLen-1)
+				{
+					memcpy(pwd, &pwdBuf[1], pwdBufLen-1);  /* skip digest tag and include null */
+				}
+				else
+				{
+					err = LDAP_NO_MEMORY;
+				}
+			}
+		}
+	}
+
+	if (pwdBuf != NULL)
+	{
+		memset(pwdBuf, 0, bufferLen);
+		free(pwdBuf);
+	}
+
+	return err;
+}
+
+
+/**********************************************************************
+ Attempts to set the Universal Password
+**********************************************************************/
+
+static int nmasldap_set_password(
+	LDAP	 *ld,
+	const char     *objectDN,
+	const char     *pwd )
+{
+	int err = 0;
+
+	struct berval *requestBV = NULL;
+	char *replyOID = NULL;
+	struct berval *replyBV = NULL;
+	int serverVersion;
+
+	/* Validate char parameters. */
+	if(objectDN == NULL || (strlen(objectDN) == 0) || pwd == NULL || ld == NULL)
+	{
+		return LDAP_NO_SUCH_ATTRIBUTE;
+	}
+
+	err = berEncodePasswordData(&requestBV, objectDN, pwd, NULL);
+	if(err)
+	{
+		goto Cleanup;
+	}
+
+	/* Call the ldap_extended_operation (synchronously) */
+	if((err = ldap_extended_operation_s(ld, NMASLDAP_SET_PASSWORD_REQUEST, requestBV, NULL, NULL, &replyOID, &replyBV)))
+	{
+		goto Cleanup;
+	}
+
+	/* Make sure there is a return OID */
+	if(!replyOID)
+	{
+		err = LDAP_NOT_SUPPORTED;
+		goto Cleanup;
+	}
+
+	/* Is this what we were expecting to get back. */
+	if(strcmp(replyOID, NMASLDAP_SET_PASSWORD_RESPONSE))
+	{
+		err = LDAP_NOT_SUPPORTED;
+		goto Cleanup;
+	}
+
+	/* Do we have a good returned berval? */
+	if(!replyBV)
+	{
+		/* No; returned berval means we experienced a rather drastic error. */
+		/* Return operations error. */
+		err = LDAP_OPERATIONS_ERROR;
+		goto Cleanup;
+	}
+
+	err = berDecodeLoginData(replyBV, &serverVersion, NULL, NULL);
+
+	if(serverVersion != NMAS_LDAP_EXT_VERSION)
+	{
+		err = LDAP_OPERATIONS_ERROR;
+		goto Cleanup;
+	}
+
+Cleanup:
+
+	if(replyBV)
+	{
+		ber_bvfree(replyBV);
+	}
+
+	/* Free the return OID string if one was returned. */
+	if(replyOID)
+	{
+		ldap_memfree(replyOID);
+	}
+
+	/* Free memory allocated while building the request ber and berval. */
+	if(requestBV)
+	{
+		ber_bvfree(requestBV);
+	}
+
+	/* Return the appropriate error/success code. */
+	return err;
+}
+
+/**********************************************************************
+ Attempts to get the Universal Password
+**********************************************************************/
+
+static int nmasldap_get_password(
+	LDAP	 *ld,
+	char     *objectDN,
+	size_t   *pwdSize,	/* in bytes */
+	unsigned char     *pwd )
+{
+	int err = 0;
+
+	struct berval *requestBV = NULL;
+	char *replyOID = NULL;
+	struct berval *replyBV = NULL;
+	int serverVersion;
+	char *pwdBuf;
+	size_t pwdBufLen, bufferLen;
+
+	/* Validate char parameters. */
+	if(objectDN == NULL || (strlen(objectDN) == 0) || pwdSize == NULL || ld == NULL)
+	{
+		return LDAP_NO_SUCH_ATTRIBUTE;
+	}
+
+	bufferLen = pwdBufLen = *pwdSize;
+	pwdBuf = SMB_MALLOC_ARRAY(char, pwdBufLen+2);
+	if(pwdBuf == NULL)
+	{
+		return LDAP_NO_MEMORY;
+	}
+
+	err = berEncodePasswordData(&requestBV, objectDN, NULL, NULL);
+	if(err)
+	{
+		goto Cleanup;
+	}
+
+	/* Call the ldap_extended_operation (synchronously) */
+	if((err = ldap_extended_operation_s(ld, NMASLDAP_GET_PASSWORD_REQUEST, requestBV, NULL, NULL, &replyOID, &replyBV)))
+	{
+		goto Cleanup;
+	}
+
+	/* Make sure there is a return OID */
+	if(!replyOID)
+	{
+		err = LDAP_NOT_SUPPORTED;
+		goto Cleanup;
+	}
+
+	/* Is this what we were expecting to get back. */
+	if(strcmp(replyOID, NMASLDAP_GET_PASSWORD_RESPONSE))
+	{
+		err = LDAP_NOT_SUPPORTED;
+		goto Cleanup;
+	}
+
+	/* Do we have a good returned berval? */
+	if(!replyBV)
+	{
+		/* No; returned berval means we experienced a rather drastic error. */
+		/* Return operations error. */
+		err = LDAP_OPERATIONS_ERROR;
+		goto Cleanup;
+	}
+
+	err = berDecodeLoginData(replyBV, &serverVersion, &pwdBufLen, pwdBuf);
+
+	if(serverVersion != NMAS_LDAP_EXT_VERSION)
+	{
+		err = LDAP_OPERATIONS_ERROR;
+		goto Cleanup;
+	}
+
+	if (!err && pwdBufLen != 0)
+	{
+		if (*pwdSize >= pwdBufLen+1 && pwd != NULL)
+		{
+			memcpy(pwd, pwdBuf, pwdBufLen);
+			pwd[pwdBufLen] = 0; /* add null termination */
+		}
+		*pwdSize = pwdBufLen; /* does not include null termination */
+	}
+
+Cleanup:
+
+	if(replyBV)
+	{
+		ber_bvfree(replyBV);
+	}
+
+	/* Free the return OID string if one was returned. */
+	if(replyOID)
+	{
+		ldap_memfree(replyOID);
+	}
+
+	/* Free memory allocated while building the request ber and berval. */
+	if(requestBV)
+	{
+		ber_bvfree(requestBV);
+	}
+
+	if (pwdBuf != NULL)
+	{
+		memset(pwdBuf, 0, bufferLen);
+		free(pwdBuf);
+	}
+
+	/* Return the appropriate error/success code. */
+	return err;
+}
+
+/**********************************************************************
+ Get the user's password from NDS.
+ *********************************************************************/
+
+int pdb_nds_get_password(
+	struct smbldap_state *ldap_state,
+	char *object_dn,
+	size_t *pwd_len,
+	char *pwd )
+{
+	LDAP *ld = smbldap_get_ldap(ldap_state);
+	int rc = -1;
+
+	rc = nmasldap_get_password(ld, object_dn, pwd_len, (unsigned char *)pwd);
+	if (rc == LDAP_SUCCESS) {
+#ifdef DEBUG_PASSWORD
+		DEBUG(100,("nmasldap_get_password returned %s for %s\n", pwd, object_dn));
+#endif    
+		DEBUG(5, ("NDS Universal Password retrieved for %s\n", object_dn));
+	} else {
+		DEBUG(3, ("NDS Universal Password NOT retrieved for %s\n", object_dn));
+	}
+
+	if (rc != LDAP_SUCCESS) {
+		rc = nmasldap_get_simple_pwd(ld, object_dn, *pwd_len, pwd);
+		if (rc == LDAP_SUCCESS) {
+#ifdef DEBUG_PASSWORD
+			DEBUG(100,("nmasldap_get_simple_pwd returned %s for %s\n", pwd, object_dn));
+#endif    
+			DEBUG(5, ("NDS Simple Password retrieved for %s\n", object_dn));
+		} else {
+			/* We couldn't get the password */
+			DEBUG(3, ("NDS Simple Password NOT retrieved for %s\n", object_dn));
+			return LDAP_INVALID_CREDENTIALS;
+		}
+	}
+
+	/* We got the password */
+	return LDAP_SUCCESS;
+}
+
+/**********************************************************************
+ Set the users NDS, Universal and Simple passwords.
+ ********************************************************************/
+
+int pdb_nds_set_password(
+	struct smbldap_state *ldap_state,
+	char *object_dn,
+	const char *pwd )
+{
+	LDAP *ld = smbldap_get_ldap(ldap_state);
+	int rc = -1;
+	LDAPMod **tmpmods = NULL;
+
+	rc = nmasldap_set_password(ld, object_dn, pwd);
+	if (rc == LDAP_SUCCESS) {
+		DEBUG(5,("NDS Universal Password changed for user %s\n", object_dn));
+	} else {
+		char *ld_error = NULL;
+		ldap_get_option(ld, LDAP_OPT_ERROR_STRING, &ld_error);
+		
+		/* This will fail if Universal Password is not enabled for the user's context */
+		DEBUG(3,("NDS Universal Password could not be changed for user %s: %s (%s)\n",
+				 object_dn, ldap_err2string(rc), ld_error?ld_error:"unknown"));
+		SAFE_FREE(ld_error);
+	}
+
+	/* Set eDirectory Password */
+	smbldap_set_mod(&tmpmods, LDAP_MOD_REPLACE, "userPassword", pwd);
+	rc = smbldap_modify(ldap_state, object_dn, tmpmods);
+
+	return rc;
+}
+
+/**********************************************************************
+ Allow ldap server to update internal login attempt counters by
+  performing a simple bind. If the samba authentication failed attempt
+  the bind with a bogus, randomly generated password to count the
+  failed attempt. If the bind fails even though samba authentication
+  succeeded, this would indicate that the user's account is disabled,
+  time restrictions are in place or some other password policy
+  violation.
+*********************************************************************/
+
+static NTSTATUS pdb_nds_update_login_attempts(struct pdb_methods *methods,
+					struct samu *sam_acct, bool success)
+{
+	struct ldapsam_privates *ldap_state;
+
+	if ((!methods) || (!sam_acct)) {
+		DEBUG(3,("pdb_nds_update_login_attempts: invalid parameter.\n"));
+		return NT_STATUS_MEMORY_NOT_ALLOCATED;
+	}
+
+	ldap_state = (struct ldapsam_privates *)methods->private_data;
+
+	if (ldap_state) {
+		/* Attempt simple bind with user credentials to update eDirectory
+		   password policy */
+		int rc = 0;
+		char *dn;
+		LDAPMessage *result = NULL;
+		LDAPMessage *entry = NULL;
+		const char **attr_list;
+		size_t pwd_len;
+		char clear_text_pw[512];
+		LDAP *ld = NULL;
+		const char *username = pdb_get_username(sam_acct);
+		bool got_clear_text_pw = False;
+
+		DEBUG(5,("pdb_nds_update_login_attempts: %s login for %s\n",
+				success ? "Successful" : "Failed", username));
+
+		result = (LDAPMessage *)pdb_get_backend_private_data(sam_acct, methods);
+		if (!result) {
+			attr_list = get_userattr_list(NULL,
+						      ldap_state->schema_ver);
+			rc = ldapsam_search_suffix_by_name(ldap_state, username, &result, attr_list );
+			TALLOC_FREE( attr_list );
+			if (rc != LDAP_SUCCESS) {
+				return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+			}
+			pdb_set_backend_private_data(sam_acct, result, NULL,
+						     methods, PDB_CHANGED);
+			smbldap_talloc_autofree_ldapmsg(sam_acct, result);
+		}
+
+		if (ldap_count_entries(
+			    smbldap_get_ldap(ldap_state->smbldap_state),
+			    result) == 0) {
+			DEBUG(0, ("pdb_nds_update_login_attempts: No user to modify!\n"));
+			return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+		}
+
+		entry = ldap_first_entry(
+			smbldap_get_ldap(ldap_state->smbldap_state), result);
+		dn = smbldap_talloc_dn(talloc_tos(),
+				       smbldap_get_ldap(
+					       ldap_state->smbldap_state),
+				       entry);
+		if (!dn) {
+			return NT_STATUS_OBJECT_NAME_NOT_FOUND;
+		}
+
+		DEBUG(3, ("pdb_nds_update_login_attempts: username %s found dn '%s'\n", username, dn));
+
+		pwd_len = sizeof(clear_text_pw);
+		if (success == True) {
+			if (pdb_nds_get_password(ldap_state->smbldap_state, dn, &pwd_len, clear_text_pw) == LDAP_SUCCESS) {
+				/* Got clear text password. Use simple ldap bind */
+				got_clear_text_pw = True;
+			}
+		} else {
+			/* This is a long term key */
+			generate_secret_buffer((unsigned char *)clear_text_pw, 24);
+			clear_text_pw[24] = '\0';
+			DEBUG(5,("pdb_nds_update_login_attempts: using random password %s\n", clear_text_pw));
+		}
+
+		if((success != True) || (got_clear_text_pw == True)) {
+			
+			rc = smbldap_setup_full_conn(&ld, ldap_state->location);
+			if (rc) {
+				TALLOC_FREE(dn);
+				return NT_STATUS_INVALID_CONNECTION;
+			}
+
+			/* Attempt simple bind with real or bogus password */
+			rc = ldap_simple_bind_s(ld, dn, clear_text_pw);
+			ldap_unbind(ld);
+			if (rc == LDAP_SUCCESS) {
+				DEBUG(5,("pdb_nds_update_login_attempts: ldap_simple_bind_s Successful for %s\n", username));
+			} else {
+				NTSTATUS nt_status = NT_STATUS_ACCOUNT_RESTRICTION;
+				DEBUG(5,("pdb_nds_update_login_attempts: ldap_simple_bind_s Failed for %s\n", username));
+				switch(rc) {
+					case LDAP_INVALID_CREDENTIALS:
+						nt_status = NT_STATUS_WRONG_PASSWORD;
+						break;
+					case LDAP_UNWILLING_TO_PERFORM:
+						/* eDir returns this if the account was disabled. */
+						/* The problem is we don't know if the given
+						   password was correct for this account or
+						   not. We have to return more info than we
+						   should and tell the client NT_STATUS_ACCOUNT_DISABLED
+						   so they don't think the password was bad. JRA. */
+						nt_status = NT_STATUS_ACCOUNT_DISABLED;
+						break;
+					default:
+						break;
+				}
+				return nt_status;
+			}
+		}
+		TALLOC_FREE(dn);
+	}
+	
+	return NT_STATUS_OK;
+}
+
+/**********************************************************************
+ Initialise the parts of the pdb_methods structure that are common
+ to NDS_ldapsam modes
+ *********************************************************************/
+
+static NTSTATUS pdb_init_NDS_ldapsam_common(struct pdb_methods **pdb_method, const char *location)
+{
+	struct ldapsam_privates *ldap_state =
+		(struct ldapsam_privates *)((*pdb_method)->private_data);
+
+	/* Mark this as eDirectory ldap */
+	ldap_state->is_nds_ldap = True;
+
+	/* Add pdb_nds specific method for updating login attempts. */
+	(*pdb_method)->update_login_attempts = pdb_nds_update_login_attempts;
+
+	/* Save location for use in pdb_nds_update_login_attempts */
+	ldap_state->location = SMB_STRDUP(location);
+
+	return NT_STATUS_OK;
+}
+
+/**********************************************************************
+ Initialise the 'nds' normal mode for pdb_ldap
+ *********************************************************************/
+
+static NTSTATUS pdb_init_NDS_ldapsam(struct pdb_methods **pdb_method, const char *location)
+{
+	NTSTATUS nt_status = pdb_ldapsam_init_common(pdb_method, location);
+
+	(*pdb_method)->name = "NDS_ldapsam";
+
+	pdb_init_NDS_ldapsam_common(pdb_method, location);
+
+	return nt_status;
+}
+
+NTSTATUS pdb_nds_init(TALLOC_CTX *ctx)
+{
+	NTSTATUS nt_status;
+	if (!NT_STATUS_IS_OK(nt_status = smb_register_passdb(PASSDB_INTERFACE_VERSION, "NDS_ldapsam", pdb_init_NDS_ldapsam)))
+		return nt_status;
+
+	return NT_STATUS_OK;
+}