r20116: Start merging in the work done to create the new idmap subsystem.

Simo.
(This used to be commit 50cd8bffeeed2cac755f75fc3d76fe41c451976b)

1 files changed, 1349 insertions, 0 deletions

diff --git a/source3/nsswitch/idmap_ldap.c b/source3/nsswitch/idmap_ldap.c
new file mode 100644
index 0000000000..baa926d479
--- /dev/null
+++ b/source3/nsswitch/idmap_ldap.c
@@ -0,0 +1,1349 @@
+/*
+   Unix SMB/CIFS implementation.
+
+   idmap LDAP backend
+
+   Copyright (C) Tim Potter 		2000
+   Copyright (C) Jim McDonough <jmcd@us.ibm.com>	2003
+   Copyright (C) Gerald Carter 		2003
+   Copyright (C) Simo Sorce 		2003-2006
+
+   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 2 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, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#include "includes.h"
+
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_IDMAP
+
+#include <lber.h>
+#include <ldap.h>
+
+#include "smbldap.h"
+
+struct idmap_ldap_alloc_context {
+	struct smbldap_state *smbldap_state;
+	char *url;
+	char *suffix;
+	char *user_dn;
+	uid_t low_uid, high_uid;      /* Range of uids */
+	gid_t low_gid, high_gid;      /* Range of gids */
+
+};
+
+#define CHECK_ALLOC_DONE(mem) do { if (!mem) { DEBUG(0, ("Out of memory!\n")); ret = NT_STATUS_NO_MEMORY; goto done; } } while (0)
+
+/**********************************************************************
+ IDMAP ALLOC TDB BACKEND
+**********************************************************************/
+ 
+static struct idmap_ldap_alloc_context *idmap_alloc_ldap;
+
+/**********************************************************************
+ Verify the sambaUnixIdPool entry in the directory.  
+**********************************************************************/
+
+static NTSTATUS verify_idpool(void)
+{
+	NTSTATUS ret;
+	TALLOC_CTX *ctx;
+	LDAPMessage *result = NULL;
+	LDAPMod **mods = NULL;
+	const char **attr_list;
+	char *filter;
+	int count;
+	int rc;
+	
+	if ( ! idmap_alloc_ldap) {
+		return NT_STATUS_UNSUCCESSFUL;
+	}
+
+	ctx = talloc_new(idmap_alloc_ldap);
+	if ( ! ctx) {
+		DEBUG(0, ("Out of memory!\n"));
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	filter = talloc_asprintf(ctx, "(objectclass=%s)", LDAP_OBJ_IDPOOL);
+	CHECK_ALLOC_DONE(filter);
+	
+	attr_list = get_attr_list(ctx, idpool_attr_list);
+	CHECK_ALLOC_DONE(attr_list);
+
+	rc = smbldap_search(idmap_alloc_ldap->smbldap_state,
+				idmap_alloc_ldap->suffix, 
+				LDAP_SCOPE_SUBTREE,
+				filter,
+				attr_list,
+				0,
+				&result);
+
+	if (rc != LDAP_SUCCESS) {
+		return NT_STATUS_UNSUCCESSFUL;
+	}
+
+	count = ldap_count_entries(idmap_alloc_ldap->smbldap_state->ldap_struct, result);
+
+	ldap_msgfree(result);
+
+	if ( count > 1 ) {
+		DEBUG(0,("Multiple entries returned from %s (base == %s)\n",
+			filter, idmap_alloc_ldap->suffix));
+		ret = NT_STATUS_UNSUCCESSFUL;
+		goto done;
+	}
+	else if (count == 0) {
+		char *uid_str, *gid_str;
+		
+		uid_str = talloc_asprintf(ctx, "%lu", (unsigned long)idmap_alloc_ldap->low_uid);
+		gid_str = talloc_asprintf(ctx, "%lu", (unsigned long)idmap_alloc_ldap->low_gid);
+
+		smbldap_set_mod(&mods, LDAP_MOD_ADD,
+				"objectClass", LDAP_OBJ_IDPOOL);
+		smbldap_set_mod(&mods, LDAP_MOD_ADD, 
+				get_attr_key2string(idpool_attr_list, LDAP_ATTR_UIDNUMBER),
+				uid_str);
+		smbldap_set_mod(&mods, LDAP_MOD_ADD,
+				get_attr_key2string(idpool_attr_list, LDAP_ATTR_GIDNUMBER),
+				gid_str);
+		if (mods) {
+			rc = smbldap_modify(idmap_alloc_ldap->smbldap_state,
+						idmap_alloc_ldap->suffix,
+						mods);
+			ldap_mods_free(mods, True);
+		} else {
+			ret = NT_STATUS_UNSUCCESSFUL;
+			goto done;
+		}
+	}
+
+	ret = (rc == LDAP_SUCCESS)?NT_STATUS_OK:NT_STATUS_UNSUCCESSFUL;
+done:
+	talloc_free(ctx);
+	return ret;
+}
+
+/*****************************************************************************
+ Initialise idmap database. 
+*****************************************************************************/
+
+static NTSTATUS idmap_ldap_alloc_init(const char *params)
+{
+	NTSTATUS nt_status;
+	const char *secret;
+	const char *range;
+	const char *tmp;
+	uint32_t low_id = 0;
+	uint32_t high_id = 0;
+
+	idmap_alloc_ldap = talloc_zero(NULL, struct idmap_ldap_alloc_context);
+	if (!idmap_alloc_ldap) {
+		DEBUG(0, ("Out of memory!\n"));
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	/* load ranges */
+	idmap_alloc_ldap->low_uid = 0;
+	idmap_alloc_ldap->high_uid = 0;
+	idmap_alloc_ldap->low_gid = 0;
+	idmap_alloc_ldap->high_gid = 0;
+
+	range = lp_parm_const_string(-1, "idmap alloc config", "range", NULL);
+	if (range && range[0]) {
+		if (sscanf(range, "%u - %u", &low_id, &high_id) == 2) {
+			if (low_id < high_id) {
+				idmap_alloc_ldap->low_gid = idmap_alloc_ldap->low_uid = low_id;
+				idmap_alloc_ldap->high_gid = idmap_alloc_ldap->high_uid = high_id;
+			} else {
+				DEBUG(1, ("ERROR: invalid idmap alloc range [%s]", range));
+			}
+		} else {
+			DEBUG(1, ("ERROR: invalid syntax for idmap alloc config:range [%s]", range));
+		}
+	}
+
+	if (lp_idmap_uid(&low_id, &high_id)) {
+		idmap_alloc_ldap->low_uid = low_id;
+		idmap_alloc_ldap->high_uid = high_id;
+	}
+
+	if (lp_idmap_gid(&low_id, &high_id)) {
+		idmap_alloc_ldap->low_gid = low_id;
+		idmap_alloc_ldap->high_gid= high_id;
+	}
+
+	if (idmap_alloc_ldap->high_uid <= idmap_alloc_ldap->low_uid) {
+		DEBUG(1, ("idmap uid range missing or invalid\n"));
+		DEBUGADD(1, ("idmap will be unable to map foreign SIDs\n"));
+		talloc_free(idmap_alloc_ldap);
+		return NT_STATUS_UNSUCCESSFUL;
+	}
+
+	if (idmap_alloc_ldap->high_gid <= idmap_alloc_ldap->low_gid) {
+		DEBUG(1, ("idmap gid range missing or invalid\n"));
+		DEBUGADD(1, ("idmap will be unable to map foreign SIDs\n"));
+		talloc_free(idmap_alloc_ldap);
+		return NT_STATUS_UNSUCCESSFUL;
+	}
+
+	if (params && *params) {
+		/* assume location is the only parameter */
+		idmap_alloc_ldap->url = talloc_strdup(idmap_alloc_ldap, params);
+	} else {
+		tmp = lp_parm_const_string(-1, "idmap alloc config", "ldap_url", NULL);
+
+		if ( ! tmp) {
+			DEBUG(1, ("ERROR: missing idmap ldap url\n"));
+			talloc_free(idmap_alloc_ldap);
+			return NT_STATUS_UNSUCCESSFUL;
+		}
+		
+		idmap_alloc_ldap->url = talloc_strdup(idmap_alloc_ldap, tmp);
+	}
+	if ( ! idmap_alloc_ldap->url) {
+		talloc_free(idmap_alloc_ldap);
+		DEBUG(0, ("Out of memory!\n"));
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	tmp = lp_ldap_idmap_suffix();
+	if ( ! tmp || ! *tmp) {
+		tmp = lp_parm_const_string(-1, "idmap alloc config", "ldap_base_dn", NULL);
+	}
+	if ( ! tmp) {
+		tmp = lp_ldap_suffix();
+		if (tmp) {
+			DEBUG(1, ("WARNING: Trying to use the global ldap suffix(%s)\n", tmp));
+			DEBUGADD(1, ("as suffix. This may not be what you want!\n"));
+		}
+	}
+	if ( ! tmp) {
+		DEBUG(1, ("ERROR: missing idmap ldap suffix\n"));
+		talloc_free(idmap_alloc_ldap);
+		return NT_STATUS_UNSUCCESSFUL;
+	}
+	idmap_alloc_ldap->suffix = talloc_strdup(idmap_alloc_ldap, tmp);
+	if ( ! idmap_alloc_ldap->suffix) {
+		talloc_free(idmap_alloc_ldap);
+		DEBUG(0, ("Out of memory!\n"));
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	tmp = lp_parm_const_string(-1, "idmap alloc config", "ldap_user_dn", NULL);
+
+	if ( ! tmp) {
+		tmp = lp_ldap_admin_dn();
+	}
+	if (! tmp || ! *tmp) {
+		DEBUG(1, ("ERROR: missing idmap ldap user dn\n"));
+		talloc_free(idmap_alloc_ldap);
+		return NT_STATUS_UNSUCCESSFUL;
+	}
+
+	idmap_alloc_ldap->user_dn = talloc_strdup(idmap_alloc_ldap, tmp);
+	if ( ! idmap_alloc_ldap->user_dn) {
+		talloc_free(idmap_alloc_ldap);
+		DEBUG(0, ("Out of memory!\n"));
+		return NT_STATUS_NO_MEMORY;
+	}
+	
+	if (!NT_STATUS_IS_OK(nt_status = 
+		     smbldap_init(idmap_alloc_ldap, idmap_alloc_ldap->url, 
+				  &idmap_alloc_ldap->smbldap_state))) {
+		DEBUG(1, ("ERROR: smbldap_init (%s) failed!\n",
+					idmap_alloc_ldap->url));
+		talloc_free(idmap_alloc_ldap);
+		return nt_status;
+	}
+
+	/* fetch credentials from secrets.tdb */
+	secret = idmap_fecth_secret("ldap", true, NULL, idmap_alloc_ldap->user_dn);
+	if (!secret) {
+		DEBUG(1, ("ERROR: unable to fetch auth credentials\n"));
+		talloc_free(idmap_alloc_ldap);
+		return NT_STATUS_ACCESS_DENIED;
+	}
+	/* now set credentials */
+	smbldap_set_creds(idmap_alloc_ldap->smbldap_state, false, idmap_alloc_ldap->user_dn, secret);
+
+	/* see if the idmap suffix and sub entries exists */
+	nt_status = verify_idpool();	
+	if (!NT_STATUS_IS_OK(nt_status)) {
+		talloc_free(idmap_alloc_ldap);
+		return nt_status;
+	}
+
+	return NT_STATUS_OK;
+}
+
+/********************************
+ Allocate a new uid or gid
+********************************/
+
+static NTSTATUS idmap_ldap_allocate_id(struct unixid *xid)
+{
+	TALLOC_CTX *ctx;
+	NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
+	int rc = LDAP_SERVER_DOWN;
+	int count = 0;
+	LDAPMessage *result = NULL;
+	LDAPMessage *entry = NULL;
+	LDAPMod **mods = NULL;
+	char *id_str;
+	char *new_id_str;
+	char *filter = NULL;
+	const char *dn = NULL;
+	const char **attr_list;
+	const char *type;
+
+	if ( ! idmap_alloc_ldap) {
+		return NT_STATUS_UNSUCCESSFUL;
+	}
+
+	ctx = talloc_new(idmap_alloc_ldap);
+	if ( ! ctx) {
+		DEBUG(0, ("Out of memory!\n"));
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	/* get type */
+	switch (xid->type) {
+
+	case ID_TYPE_UID:
+		type = get_attr_key2string(idpool_attr_list, LDAP_ATTR_UIDNUMBER);
+	       	break;
+
+	case ID_TYPE_GID:
+		type = get_attr_key2string(idpool_attr_list, LDAP_ATTR_GIDNUMBER);
+		break;
+
+	default:
+		DEBUG(2, ("Invalid ID type (0x%x)\n", xid->type));
+		return NT_STATUS_INVALID_PARAMETER;
+	}
+
+	filter = talloc_asprintf(ctx, "(objectClass=%s)", LDAP_OBJ_IDPOOL);
+	CHECK_ALLOC_DONE(filter);
+
+	attr_list = get_attr_list(ctx, idpool_attr_list);
+	CHECK_ALLOC_DONE(attr_list);
+
+	DEBUG(10, ("Search of the id pool (filter: %s)\n", filter));
+
+	rc = smbldap_search(idmap_alloc_ldap->smbldap_state,
+				idmap_alloc_ldap->suffix,
+			       LDAP_SCOPE_SUBTREE, filter,
+			       attr_list, 0, &result);
+	 
+	if (rc != LDAP_SUCCESS) {
+		DEBUG(0,("%s object not found\n", LDAP_OBJ_IDPOOL));
+		goto done;
+	}
+
+	talloc_autofree_ldapmsg(ctx, result);
+	
+	count = ldap_count_entries(idmap_alloc_ldap->smbldap_state->ldap_struct, result);
+	if (count != 1) {
+		DEBUG(0,("Single %s object not found\n", LDAP_OBJ_IDPOOL));
+		goto done;
+	}
+
+	entry = ldap_first_entry(idmap_alloc_ldap->smbldap_state->ldap_struct, result);
+
+	dn = smbldap_talloc_dn(ctx, idmap_alloc_ldap->smbldap_state->ldap_struct, entry);
+	if ( ! dn) {
+		goto done;
+	}
+
+	if ( ! (id_str = smbldap_talloc_single_attribute(idmap_alloc_ldap->smbldap_state->ldap_struct,
+				entry, type, ctx))) {
+		DEBUG(0,("%s attribute not found\n", type));
+		goto done;
+	}
+	if ( ! id_str) {
+		DEBUG(0,("Out of memory\n"));
+		ret = NT_STATUS_NO_MEMORY;
+		goto done;
+	}
+
+	xid->id = strtoul(id_str, NULL, 10);
+
+	/* make sure we still have room to grow */
+
+	switch (xid->type) {
+	case ID_TYPE_UID:
+		if (xid->id > idmap_alloc_ldap->high_uid) {
+			DEBUG(0,("Cannot allocate uid above %lu!\n", 
+				 (unsigned long)idmap_alloc_ldap->high_uid));
+			goto done;
+		}
+		break;
+		
+	case ID_TYPE_GID: 
+		if (xid->id > idmap_alloc_ldap->high_gid) {
+			DEBUG(0,("Cannot allocate gid above %lu!\n", 
+				 (unsigned long)idmap_alloc_ldap->high_uid));
+			goto done;
+		}
+		break;
+
+	default:
+		/* impossible */
+		goto done;
+	}
+	
+	new_id_str = talloc_asprintf(ctx, "%lu", (unsigned long)xid->id + 1);
+	if ( ! new_id_str) {
+		DEBUG(0,("Out of memory\n"));
+		ret = NT_STATUS_NO_MEMORY;
+		goto done;
+	}
+		 
+	smbldap_set_mod(&mods, LDAP_MOD_DELETE, type, id_str);
+	smbldap_set_mod(&mods, LDAP_MOD_ADD, type, new_id_str);
+
+	if (mods == NULL) {
+		DEBUG(0,("smbldap_set_mod() failed.\n"));
+		goto done;		
+	}
+
+	DEBUG(10, ("Try to atomically increment the id (%s -> %s)\n", id_str, new_id_str));
+
+	rc = smbldap_modify(idmap_alloc_ldap->smbldap_state, dn, mods);
+
+	ldap_mods_free(mods, True);
+
+	if (rc != LDAP_SUCCESS) {
+		DEBUG(1,("Failed to allocate new %s. smbldap_modify() failed.\n", type));
+		goto done;
+	}
+	
+	ret = NT_STATUS_OK;
+
+done:
+	talloc_free(ctx);
+	return ret;
+}
+
+/**********************************
+ Get current highest id. 
+**********************************/
+
+static NTSTATUS idmap_ldap_get_hwm(struct unixid *xid)
+{
+	TALLOC_CTX *memctx;
+	NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
+	int rc = LDAP_SERVER_DOWN;
+	int count = 0;
+	LDAPMessage *result = NULL;
+	LDAPMessage *entry = NULL;
+	char *id_str;
+	char *filter = NULL;
+	const char **attr_list;
+	const char *type;
+
+	if ( ! idmap_alloc_ldap) {
+		return NT_STATUS_UNSUCCESSFUL;
+	}
+
+	memctx = talloc_new(idmap_alloc_ldap);
+	if ( ! memctx) {
+		DEBUG(0, ("Out of memory!\n"));
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	/* get type */
+	switch (xid->type) {
+
+	case ID_TYPE_UID:
+		type = get_attr_key2string(idpool_attr_list, LDAP_ATTR_UIDNUMBER);
+	       	break;
+
+	case ID_TYPE_GID:
+		type = get_attr_key2string(idpool_attr_list, LDAP_ATTR_GIDNUMBER);
+		break;
+
+	default:
+		DEBUG(2, ("Invalid ID type (0x%x)\n", xid->type));
+		return NT_STATUS_INVALID_PARAMETER;
+	}
+
+	filter = talloc_asprintf(memctx, "(objectClass=%s)", LDAP_OBJ_IDPOOL);
+	CHECK_ALLOC_DONE(filter);
+
+	attr_list = get_attr_list(memctx, idpool_attr_list);
+	CHECK_ALLOC_DONE(attr_list);
+
+	rc = smbldap_search(idmap_alloc_ldap->smbldap_state,
+				idmap_alloc_ldap->suffix,
+			       LDAP_SCOPE_SUBTREE, filter,
+			       attr_list, 0, &result);
+	 
+	if (rc != LDAP_SUCCESS) {
+		DEBUG(0,("%s object not found\n", LDAP_OBJ_IDPOOL));
+		goto done;
+	}
+
+	talloc_autofree_ldapmsg(memctx, result);
+	
+	count = ldap_count_entries(idmap_alloc_ldap->smbldap_state->ldap_struct, result);
+	if (count != 1) {
+		DEBUG(0,("Single %s object not found\n", LDAP_OBJ_IDPOOL));
+		goto done;
+	}
+
+	entry = ldap_first_entry(idmap_alloc_ldap->smbldap_state->ldap_struct, result);
+
+	id_str = smbldap_talloc_single_attribute(idmap_alloc_ldap->smbldap_state->ldap_struct,
+			entry, type, memctx);
+	if ( ! id_str) {
+		DEBUG(0,("%s attribute not found\n", type));
+		goto done;
+	}
+	if ( ! id_str) {
+		DEBUG(0,("Out of memory\n"));
+		ret = NT_STATUS_NO_MEMORY;
+		goto done;
+	}
+
+	xid->id	= strtoul(id_str, NULL, 10);
+	
+	ret = NT_STATUS_OK;
+done:
+	talloc_free(memctx);
+	return ret;
+}
+/**********************************
+ Set highest id. 
+**********************************/
+
+static NTSTATUS idmap_ldap_set_hwm(struct unixid *xid)
+{
+	TALLOC_CTX *ctx;
+	NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
+	int rc = LDAP_SERVER_DOWN;
+	int count = 0;
+	LDAPMessage *result = NULL;
+	LDAPMessage *entry = NULL;
+	LDAPMod **mods = NULL;
+	char *new_id_str;
+	char *filter = NULL;
+	const char *dn = NULL;
+	const char **attr_list;
+	const char *type;
+
+	if ( ! idmap_alloc_ldap) {
+		return NT_STATUS_UNSUCCESSFUL;
+	}
+
+	ctx = talloc_new(idmap_alloc_ldap);
+	if ( ! ctx) {
+		DEBUG(0, ("Out of memory!\n"));
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	/* get type */
+	switch (xid->type) {
+
+	case ID_TYPE_UID:
+		type = get_attr_key2string(idpool_attr_list, LDAP_ATTR_UIDNUMBER);
+	       	break;
+
+	case ID_TYPE_GID:
+		type = get_attr_key2string(idpool_attr_list, LDAP_ATTR_GIDNUMBER);
+		break;
+
+	default:
+		DEBUG(2, ("Invalid ID type (0x%x)\n", xid->type));
+		return NT_STATUS_INVALID_PARAMETER;
+	}
+
+	filter = talloc_asprintf(ctx, "(objectClass=%s)", LDAP_OBJ_IDPOOL);
+	CHECK_ALLOC_DONE(filter);
+
+	attr_list = get_attr_list(ctx, idpool_attr_list);
+	CHECK_ALLOC_DONE(attr_list);
+
+	rc = smbldap_search(idmap_alloc_ldap->smbldap_state,
+				idmap_alloc_ldap->suffix,
+			       LDAP_SCOPE_SUBTREE, filter,
+			       attr_list, 0, &result);
+	 
+	if (rc != LDAP_SUCCESS) {
+		DEBUG(0,("%s object not found\n", LDAP_OBJ_IDPOOL));
+		goto done;
+	}
+
+	talloc_autofree_ldapmsg(ctx, result);
+	
+	count = ldap_count_entries(idmap_alloc_ldap->smbldap_state->ldap_struct, result);
+	if (count != 1) {
+		DEBUG(0,("Single %s object not found\n", LDAP_OBJ_IDPOOL));
+		goto done;
+	}
+
+	entry = ldap_first_entry(idmap_alloc_ldap->smbldap_state->ldap_struct, result);
+
+	dn = smbldap_talloc_dn(ctx, idmap_alloc_ldap->smbldap_state->ldap_struct, entry);
+	if ( ! dn) {
+		goto done;
+	}
+
+	new_id_str = talloc_asprintf(ctx, "%lu", (unsigned long)xid->id);
+	if ( ! new_id_str) {
+		DEBUG(0,("Out of memory\n"));
+		ret = NT_STATUS_NO_MEMORY;
+		goto done;
+	}
+		 
+	smbldap_set_mod(&mods, LDAP_MOD_REPLACE, type, new_id_str);
+
+	if (mods == NULL) {
+		DEBUG(0,("smbldap_set_mod() failed.\n"));
+		goto done;		
+	}
+
+	rc = smbldap_modify(idmap_alloc_ldap->smbldap_state, dn, mods);
+
+	ldap_mods_free(mods, True);
+
+	if (rc != LDAP_SUCCESS) {
+		DEBUG(1,("Failed to allocate new %s. smbldap_modify() failed.\n", type));
+		goto done;
+	}
+	
+	ret = NT_STATUS_OK;
+
+done:
+	talloc_free(ctx);
+	return ret;
+}
+
+/**********************************
+ Close idmap ldap alloc
+**********************************/
+
+static NTSTATUS idmap_ldap_alloc_close(void)
+{
+	if (idmap_alloc_ldap) {
+		smbldap_free_struct(&idmap_alloc_ldap->smbldap_state);
+		DEBUG(5,("The connection to the LDAP server was closed\n"));
+		/* maybe free the results here --metze */
+		TALLOC_FREE(idmap_alloc_ldap);
+	}
+	return NT_STATUS_OK;
+}
+
+
+/**********************************************************************
+ IDMAP MAPPING LDAP BACKEND
+**********************************************************************/
+ 
+struct idmap_ldap_context {
+	struct smbldap_state *smbldap_state;
+	char *url;
+	char *suffix;
+	char *user_dn;
+	uint32_t filter_low_id, filter_high_id;		/* Filter range */
+	BOOL anon;
+};
+
+static int idmap_ldap_close_destructor(struct idmap_ldap_context *ctx)
+{
+	smbldap_free_struct(&ctx->smbldap_state);
+	DEBUG(5,("The connection to the LDAP server was closed\n"));
+	/* maybe free the results here --metze */
+
+	return 0;
+}
+
+/********************************
+ Initialise idmap database. 
+********************************/
+
+static NTSTATUS idmap_ldap_db_init(struct idmap_domain *dom, const char *params)
+{
+	NTSTATUS ret;
+	struct idmap_ldap_context *ctx;
+	char *config_option;
+	const char *secret;
+	const char *range;
+	const char *tmp;
+
+	ctx = talloc_zero(dom, struct idmap_ldap_context);
+	if ( ! ctx) {
+		DEBUG(0, ("Out of memory!\n"));
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	config_option = talloc_asprintf(ctx, "idmap config %s", dom->name);
+	if ( ! config_option) {
+		DEBUG(0, ("Out of memory!\n"));
+		ret = NT_STATUS_NO_MEMORY;
+		goto done;
+	}
+
+	/* load ranges */
+	range = lp_parm_const_string(-1, config_option, "range", NULL);
+	if (range && range[0]) {
+		if ((sscanf(range, "%u - %u", &ctx->filter_low_id, &ctx->filter_high_id) != 2) ||
+		    (ctx->filter_low_id > ctx->filter_high_id)) {
+			DEBUG(1, ("ERROR: invalid filter range [%s]", range));
+			ctx->filter_low_id = 0;
+			ctx->filter_high_id = 0;
+		}
+	}
+
+	if (params && *params) {
+		/* assume location is the only parameter */
+		ctx->url = talloc_strdup(ctx, params);
+	} else {
+		tmp = lp_parm_const_string(-1, config_option, "ldap_url", NULL);
+
+		if ( ! tmp) {
+			DEBUG(1, ("ERROR: missing idmap ldap url\n"));
+			ret = NT_STATUS_UNSUCCESSFUL;
+			goto done;
+		}
+		
+		ctx->url = talloc_strdup(ctx, tmp);
+	}
+	CHECK_ALLOC_DONE(ctx->url);
+
+	tmp = lp_ldap_idmap_suffix();
+	if ( ! tmp || ! *tmp) {
+		tmp = lp_parm_const_string(-1, config_option, "ldap_base_dn", NULL);
+	}
+	if ( ! tmp) {
+		tmp = lp_ldap_suffix();
+		if (tmp) {
+			DEBUG(1, ("WARNING: Trying to use the global ldap suffix(%s)\n", tmp));
+			DEBUGADD(1, ("as suffix. This may not be what you want!\n"));
+		}
+	}
+	if ( ! tmp) {
+		DEBUG(1, ("ERROR: missing idmap ldap suffix\n"));
+		ret = NT_STATUS_UNSUCCESSFUL;
+		goto done;
+	}
+	ctx->suffix = talloc_strdup(ctx, tmp);
+	CHECK_ALLOC_DONE(ctx->suffix);
+
+	ctx->anon = lp_parm_bool(-1, config_option, "ldap_anon", False);
+
+	ret = smbldap_init(ctx, ctx->url, &ctx->smbldap_state);
+	if (!NT_STATUS_IS_OK(ret)) {
+		DEBUG(1, ("ERROR: smbldap_init (%s) failed!\n", ctx->url));
+		goto done;
+	}
+
+	if ( ! ctx->anon) {
+		tmp = lp_parm_const_string(-1, config_option, "ldap_user_dn", NULL);
+
+		if ( ! tmp) {
+			tmp = lp_ldap_admin_dn();
+		}
+		if (! tmp || ! *tmp) {
+			DEBUG(1, ("ERROR: missing idmap ldap user dn\n"));
+			ret = NT_STATUS_UNSUCCESSFUL;
+			goto done;
+		}
+
+		ctx->user_dn = talloc_strdup(ctx, tmp);
+		CHECK_ALLOC_DONE(ctx->user_dn);
+
+		/* fetch credentials */
+		secret = idmap_fecth_secret("ldap", false, dom->name, ctx->user_dn);
+		if (!secret) {
+			DEBUG(1, ("ERROR: unable to fetch auth credentials\n"));
+			ret = NT_STATUS_ACCESS_DENIED;
+			goto done;
+		}
+		/* now set credentials */
+		smbldap_set_creds(ctx->smbldap_state, false, ctx->user_dn, secret);
+	} else {
+		smbldap_set_creds(ctx->smbldap_state, true, NULL, NULL);
+	}
+	
+	/* set the destructor on the context, so that resource are properly
+	 * freed if the contexts is released */
+	talloc_set_destructor(ctx, idmap_ldap_close_destructor);
+
+	dom->private_data = ctx;
+
+	talloc_free(config_option);
+	return NT_STATUS_OK;
+
+/*failed */
+done:
+	talloc_free(ctx);
+	return ret;
+}
+
+/* max number of ids requested per batch query */
+#define IDMAP_LDAP_MAX_IDS 30 
+
+/**********************************
+ lookup a set of unix ids. 
+**********************************/
+
+/* this function searches up to IDMAP_LDAP_MAX_IDS entries in maps for a match */
+static struct id_map *find_map_by_id(struct id_map **maps, enum id_type type, uint32_t id)
+{
+	int i;
+
+	for (i = 0; i < IDMAP_LDAP_MAX_IDS; i++) {
+		if (maps[i] == NULL) { /* end of the run */
+			return NULL;
+		}
+		if ((maps[i]->xid.type == type) && (maps[i]->xid.id == id)) {
+			return maps[i];
+		}
+	}
+
+	return NULL;	
+}
+
+static NTSTATUS idmap_ldap_unixids_to_sids(struct idmap_domain *dom, struct id_map **ids)
+{
+	NTSTATUS ret;
+	TALLOC_CTX *memctx;
+	struct idmap_ldap_context *ctx;
+	LDAPMessage *result = NULL;
+	const char *uidNumber;
+	const char *gidNumber;
+	const char **attr_list;
+	char *filter = NULL;
+	BOOL multi = False;
+	int idx = 0;
+	int bidx = 0;
+	int count;
+	int rc;
+	int i;
+
+	ctx = talloc_get_type(dom->private_data, struct idmap_ldap_context);	
+
+	memctx = talloc_new(ctx);
+	if ( ! memctx) {
+		DEBUG(0, ("Out of memory!\n"));
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	uidNumber = get_attr_key2string(idpool_attr_list, LDAP_ATTR_UIDNUMBER);
+	gidNumber = get_attr_key2string(idpool_attr_list, LDAP_ATTR_GIDNUMBER);
+
+	attr_list = get_attr_list(ctx, sidmap_attr_list);
+
+	if ( ! ids[1]) {
+		/* if we are requested just one mapping use the simple filter */
+
+		filter = talloc_asprintf(memctx, "(&(objectClass=%s)(%s=%lu))",
+				LDAP_OBJ_IDMAP_ENTRY,
+				(ids[0]->xid.type==ID_TYPE_UID)?uidNumber:gidNumber,
+				(unsigned long)ids[0]->xid.id);
+		CHECK_ALLOC_DONE(filter);
+		DEBUG(10, ("Filter: [%s]\n", filter));
+	} else {
+		/* multiple mappings */
+		multi = True;
+	}
+
+again:
+	if (multi) {
+
+		talloc_free(filter);
+		filter = talloc_asprintf(memctx, "(&(objectClass=%s)(|", LDAP_OBJ_IDMAP_ENTRY);
+		CHECK_ALLOC_DONE(filter);
+
+		bidx = idx;
+		for (i = 0; (i < IDMAP_LDAP_MAX_IDS) && ids[idx]; i++, idx++) {
+			filter = talloc_asprintf_append(filter, "(%s=%lu)",
+					(ids[idx]->xid.type==ID_TYPE_UID)?uidNumber:gidNumber,
+					(unsigned long)ids[idx]->xid.id);
+			CHECK_ALLOC_DONE(filter);
+		}
+		filter = talloc_asprintf_append(filter, "))");
+		CHECK_ALLOC_DONE(filter);
+		DEBUG(10, ("Filter: [%s]\n", filter));
+	} else {
+		bidx = 0;
+		idx = 1;
+	}
+
+	rc = smbldap_search(ctx->smbldap_state, ctx->suffix, LDAP_SCOPE_SUBTREE, 
+		filter, attr_list, 0, &result);
+
+	if (rc != LDAP_SUCCESS) {
+		DEBUG(3,("Failure looking up ids (%s)\n", ldap_err2string(rc)));
+		ret = NT_STATUS_UNSUCCESSFUL;
+		goto done;
+	}
+
+	count = ldap_count_entries(ctx->smbldap_state->ldap_struct, result);
+
+	if (count == 0) {
+		DEBUG(10, ("NO SIDs found\n"));
+	}
+
+	for (i = 0; i < count; i++) {
+		LDAPMessage *entry = NULL;
+		char *sidstr = NULL;
+	       	char *tmp = NULL;
+		enum id_type type;
+		struct id_map *map;
+		uint32_t id;
+
+		if (i == 0) { /* first entry */
+			entry = ldap_first_entry(ctx->smbldap_state->ldap_struct, result);
+		} else { /* following ones */
+			entry = ldap_next_entry(ctx->smbldap_state->ldap_struct, entry);
+		}
+		if ( ! entry) {
+			DEBUG(2, ("ERROR: Unable to fetch ldap entries from results\n"));
+			continue;
+		}
+
+		/* first check if the SID is present */
+		sidstr = smbldap_talloc_single_attribute(
+				ctx->smbldap_state->ldap_struct,
+				entry, LDAP_ATTRIBUTE_SID, memctx);
+		if ( ! sidstr) { /* no sid, skip entry */
+			DEBUG(2, ("WARNING SID not found on entry\n"));
+			continue;
+		}
+
+		/* now try to see if it is a uid, if not try with a gid
+		 * (gid is more common, but in case both uidNumber and
+		 * gidNumber are returned the SID is mapped to the uid not the gid) */
+		type = ID_TYPE_UID;
+		tmp = smbldap_talloc_single_attribute(
+				ctx->smbldap_state->ldap_struct,
+				entry, uidNumber, memctx);
+		if ( ! tmp) {
+			type = ID_TYPE_GID;
+			tmp = smbldap_talloc_single_attribute(
+					ctx->smbldap_state->ldap_struct,
+					entry, gidNumber, memctx);
+		}
+		if ( ! tmp) { /* wow very strange entry, how did it match ? */
+			DEBUG(5, ("Unprobable match on (%s), no uidNumber, nor gidNumber returned\n", sidstr));
+			TALLOC_FREE(sidstr);
+			continue;
+		}
+
+		id = strtoul(tmp, NULL, 10);
+		if ((id == 0) ||
+		    (ctx->filter_low_id && (id < ctx->filter_low_id)) ||
+		    (ctx->filter_high_id && (id > ctx->filter_high_id))) {
+			DEBUG(5, ("Requested id (%u) out of range (%u - %u). Filtered!\n",
+				id, ctx->filter_low_id, ctx->filter_high_id));
+			TALLOC_FREE(sidstr);
+			TALLOC_FREE(tmp);
+			continue;
+		}
+		TALLOC_FREE(tmp);
+
+		map = find_map_by_id(&ids[bidx], type, id);
+		if (!map) {
+			DEBUG(2, ("WARNING: couldn't match sid (%s) with requested ids\n", sidstr));
+			TALLOC_FREE(sidstr);
+			continue;
+		}
+
+		if ( ! string_to_sid(map->sid, sidstr)) {
+			DEBUG(2, ("ERROR: Invalid SID on entry\n"));
+			TALLOC_FREE(sidstr);
+			continue;
+		}
+		TALLOC_FREE(sidstr);
+
+		/* mapped */
+		map->mapped = True;
+
+		DEBUG(10, ("Mapped %s -> %lu (%d)\n", sid_string_static(map->sid), (unsigned long)map->xid.id, map->xid.type));
+	}
+
+	/* free the ldap results */
+	if (result) {
+		ldap_msgfree(result);
+		result = NULL;
+	}
+
+	if (multi && ids[idx]) { /* still some values to map */
+		goto again;
+	}
+
+	ret = NT_STATUS_OK;
+
+done:
+	talloc_free(memctx);
+	return ret;
+}
+
+/**********************************
+ lookup a set of sids. 
+**********************************/
+
+/* this function searches up to IDMAP_LDAP_MAX_IDS entries in maps for a match */
+static struct id_map *find_map_by_sid(struct id_map **maps, DOM_SID *sid)
+{
+	int i;
+
+	for (i = 0; i < IDMAP_LDAP_MAX_IDS; i++) {
+		if (maps[i] == NULL) { /* end of the run */
+			return NULL;
+		}
+		if (sid_equal(maps[i]->sid, sid)) {
+			return maps[i];
+		}
+	}
+
+	return NULL;	
+}
+
+static NTSTATUS idmap_ldap_sids_to_unixids(struct idmap_domain *dom, struct id_map **ids)
+{
+	NTSTATUS ret;
+	TALLOC_CTX *memctx;
+	struct idmap_ldap_context *ctx;
+	LDAPMessage *result = NULL;
+	const char *uidNumber;
+	const char *gidNumber;
+	const char **attr_list;
+	char *filter = NULL;
+	BOOL multi = False;
+	int idx = 0;
+	int bidx = 0;
+	int count;
+	int rc;
+	int i;
+
+	ctx = talloc_get_type(dom->private_data, struct idmap_ldap_context);	
+
+	memctx = talloc_new(ctx);
+	if ( ! memctx) {
+		DEBUG(0, ("Out of memory!\n"));
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	uidNumber = get_attr_key2string(idpool_attr_list, LDAP_ATTR_UIDNUMBER);
+	gidNumber = get_attr_key2string(idpool_attr_list, LDAP_ATTR_GIDNUMBER);
+
+	attr_list = get_attr_list(ctx, sidmap_attr_list);
+
+	if ( ! ids[1]) {
+		/* if we are requested just one mapping use the simple filter */
+
+		filter = talloc_asprintf(memctx, "(&(objectClass=%s)(%s=%s))",
+				LDAP_OBJ_IDMAP_ENTRY,
+				LDAP_ATTRIBUTE_SID,
+				sid_string_static(ids[0]->sid));
+		CHECK_ALLOC_DONE(filter);
+		DEBUG(10, ("Filter: [%s]\n", filter));
+	} else {
+		/* multiple mappings */
+		multi = True;
+	}
+
+again:
+	if (multi) {
+
+		TALLOC_FREE(filter);
+		filter = talloc_asprintf(memctx, "(&(objectClass=%s)(|", LDAP_OBJ_IDMAP_ENTRY);
+		CHECK_ALLOC_DONE(filter);
+
+		bidx = idx;
+		for (i = 0; (i < IDMAP_LDAP_MAX_IDS) && ids[idx]; i++, idx++) {
+			filter = talloc_asprintf_append(filter, "(%s=%s)",
+					LDAP_ATTRIBUTE_SID,
+					sid_string_static(ids[idx]->sid));
+			CHECK_ALLOC_DONE(filter);
+		}
+		filter = talloc_asprintf_append(filter, "))");
+		CHECK_ALLOC_DONE(filter);
+		DEBUG(10, ("Filter: [%s]", filter));
+	} else {
+		bidx = 0;
+		idx = 1;
+	}
+
+	rc = smbldap_search(ctx->smbldap_state, ctx->suffix, LDAP_SCOPE_SUBTREE, 
+		filter, attr_list, 0, &result);
+
+	if (rc != LDAP_SUCCESS) {
+		DEBUG(3,("Failure looking up sids (%s)\n", ldap_err2string(rc)));
+		ret = NT_STATUS_UNSUCCESSFUL;
+		goto done;
+	}
+
+	count = ldap_count_entries(ctx->smbldap_state->ldap_struct, result);
+
+	if (count == 0) {
+		DEBUG(10, ("NO SIDs found\n"));
+	}
+
+	for (i = 0; i < count; i++) {
+		LDAPMessage *entry = NULL;
+		char *sidstr = NULL;
+		char *tmp = NULL;
+		enum id_type type;
+		struct id_map *map;
+		DOM_SID sid;
+		uint32_t id;
+
+		if (i == 0) { /* first entry */
+			entry = ldap_first_entry(ctx->smbldap_state->ldap_struct, result);
+		} else { /* following ones */
+			entry = ldap_next_entry(ctx->smbldap_state->ldap_struct, entry);
+		}
+
+		/* first check if the SID is present */
+		sidstr = smbldap_talloc_single_attribute(
+				ctx->smbldap_state->ldap_struct,
+				entry, LDAP_ATTRIBUTE_SID, memctx);
+		if ( ! sidstr) { /* no sid ??, skip entry */
+			DEBUG(2, ("WARNING SID not found on entry\n"));
+			continue;
+		}
+
+		if ( ! string_to_sid(&sid, sidstr)) {
+			DEBUG(2, ("ERROR: Invalid SID on entry\n"));
+			TALLOC_FREE(sidstr);
+			continue;
+		}
+
+		map = find_map_by_sid(&ids[bidx], &sid);
+		if (!map) {
+			DEBUG(2, ("WARNING: couldn't find entry sid (%s) in ids", sidstr));
+			TALLOC_FREE(sidstr);
+			continue;
+		}
+
+		TALLOC_FREE(sidstr);
+
+		/* now try to see if it is a uid, if not try with a gid
+		 * (gid is more common, but in case both uidNumber and
+		 * gidNumber are returned the SID is mapped to the uid not the gid) */
+		type = ID_TYPE_UID;
+		tmp = smbldap_talloc_single_attribute(
+				ctx->smbldap_state->ldap_struct,
+				entry, uidNumber, memctx);
+		if ( ! tmp) {
+			type = ID_TYPE_GID;
+			tmp = smbldap_talloc_single_attribute(
+					ctx->smbldap_state->ldap_struct,
+					entry, gidNumber, memctx);
+		}
+		if ( ! tmp) { /* no ids ?? */
+			DEBUG(5, ("no uidNumber, nor gidNumber attributes found\n"));
+			continue;
+		}
+
+		id = strtoul(tmp, NULL, 10);
+		if ((id == 0) ||
+		    (ctx->filter_low_id && (id < ctx->filter_low_id)) ||
+		    (ctx->filter_high_id && (id > ctx->filter_high_id))) {
+			DEBUG(5, ("Requested id (%u) out of range (%u - %u). Filtered!\n",
+				id, ctx->filter_low_id, ctx->filter_high_id));
+			TALLOC_FREE(tmp);
+			continue;
+		}
+		TALLOC_FREE(tmp);
+
+		/* mapped */
+		map->xid.type = type;
+		map->xid.id = id;
+		map->mapped = True;
+		
+		DEBUG(10, ("Mapped %s -> %lu (%d)\n", sid_string_static(map->sid), (unsigned long)map->xid.id, map->xid.type));
+	}
+
+	/* free the ldap results */
+	if (result) {
+		ldap_msgfree(result);
+		result = NULL;
+	}
+
+	if (multi && ids[idx]) { /* still some values to map */
+		goto again;
+	}
+
+	ret = NT_STATUS_OK;
+
+done:
+	talloc_free(memctx);
+	return ret;
+}
+
+/**********************************
+ set a mapping. 
+**********************************/
+
+/* TODO: change this:  This function cannot be called to modify a mapping, only set a new one */
+
+static NTSTATUS idmap_ldap_set_mapping(struct idmap_domain *dom, const struct id_map *map)
+{
+	NTSTATUS ret;
+	TALLOC_CTX *memctx;
+	struct idmap_ldap_context *ctx;
+	LDAPMessage *entry = NULL;
+	LDAPMod **mods = NULL;
+	const char *type;
+	char *id_str;
+	char *sid;
+	char *dn;
+	int rc = -1;
+
+	ctx = talloc_get_type(dom->private_data, struct idmap_ldap_context);	
+
+	switch(map->xid.type) {
+	case ID_TYPE_UID:
+		type = get_attr_key2string(sidmap_attr_list, LDAP_ATTR_UIDNUMBER);
+		break;
+
+	case ID_TYPE_GID:
+		type = get_attr_key2string(sidmap_attr_list, LDAP_ATTR_GIDNUMBER);
+		break;
+
+	default:
+		return NT_STATUS_INVALID_PARAMETER;
+	}
+
+	memctx = talloc_new(ctx);
+	if ( ! memctx) {
+		DEBUG(0, ("Out of memory!\n"));
+		return NT_STATUS_NO_MEMORY;
+	}
+
+	id_str = talloc_asprintf(memctx, "%lu", (unsigned long)map->xid.id);
+	CHECK_ALLOC_DONE(id_str);
+
+	sid = talloc_strdup(memctx, sid_string_static(map->sid));
+	CHECK_ALLOC_DONE(sid);
+
+	dn = talloc_asprintf(memctx, "%s=%s,%s",
+			get_attr_key2string(sidmap_attr_list, LDAP_ATTR_SID),
+			sid,
+			ctx->suffix);
+	CHECK_ALLOC_DONE(dn);
+
+	smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_IDMAP_ENTRY);
+
+	smbldap_make_mod(ctx->smbldap_state->ldap_struct, entry, &mods, type, id_str);
+
+	smbldap_make_mod(ctx->smbldap_state->ldap_struct, entry, &mods,  
+			  get_attr_key2string(sidmap_attr_list, LDAP_ATTR_SID), sid);
+
+	if ( ! mods) {
+		DEBUG(2, ("ERROR: No mods?\n"));
+		ret = NT_STATUS_UNSUCCESSFUL;
+		goto done;
+	}
+
+	/* TODO: remove conflicting mappings! */
+
+	smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_SID_ENTRY);
+
+	DEBUG(10, ("Set DN %s (%s -> %s)\n", dn, sid, id_str));
+
+	rc = smbldap_add(ctx->smbldap_state, dn, mods);
+	ldap_mods_free(mods, True);	
+
+	if (rc != LDAP_SUCCESS) {
+		char *ld_error = NULL;
+		ldap_get_option(ctx->smbldap_state->ldap_struct, LDAP_OPT_ERROR_STRING, &ld_error);
+		DEBUG(0,("ldap_set_mapping_internals: Failed to add %s to %lu mapping [%s]\n",
+			 sid, (unsigned long)map->xid.id, type));
+		DEBUG(0, ("ldap_set_mapping_internals: Error was: %s (%s)\n", 
+			ld_error ? ld_error : "(NULL)", ldap_err2string (rc)));
+		ret = NT_STATUS_UNSUCCESSFUL;
+		goto done;
+	}
+		
+	DEBUG(10,("ldap_set_mapping: Successfully created mapping from %s to %lu [%s]\n",
+		sid, (unsigned long)map->xid.id, type));
+
+	ret = NT_STATUS_OK;
+
+done:
+	talloc_free(memctx);
+	return ret;
+}
+
+/**********************************
+ remove a mapping. 
+**********************************/
+
+static NTSTATUS idmap_ldap_remove_mapping(struct idmap_domain *dom, const struct id_map *map)
+{
+	return NT_STATUS_UNSUCCESSFUL;
+}
+
+/**********************************
+ Close the idmap ldap instance 
+**********************************/
+
+static NTSTATUS idmap_ldap_close(struct idmap_domain *dom)
+{
+	struct idmap_ldap_context *ctx;
+
+	if (dom->private_data) {
+		ctx = talloc_get_type(dom->private_data, struct idmap_ldap_context);
+
+		talloc_free(ctx);
+		dom->private_data = NULL;
+	}
+	
+	return NT_STATUS_OK;
+}
+
+static struct idmap_methods idmap_ldap_methods = {
+
+	.init = idmap_ldap_db_init,
+	.unixids_to_sids = idmap_ldap_unixids_to_sids,
+	.sids_to_unixids = idmap_ldap_sids_to_unixids,
+	.set_mapping = idmap_ldap_set_mapping,
+	.remove_mapping = idmap_ldap_remove_mapping,
+	/* .dump_data = TODO */
+	.close_fn = idmap_ldap_close
+};
+
+static struct idmap_alloc_methods idmap_ldap_alloc_methods = {
+
+	.init = idmap_ldap_alloc_init,
+	.allocate_id = idmap_ldap_allocate_id,
+	.get_id_hwm = idmap_ldap_get_hwm,
+	.set_id_hwm = idmap_ldap_set_hwm,
+	.close_fn = idmap_ldap_alloc_close,
+	/* .dump_data = TODO */
+};
+
+NTSTATUS idmap_alloc_ldap_init(void)
+{
+	return smb_register_idmap_alloc(SMB_IDMAP_INTERFACE_VERSION, "ldap", &idmap_ldap_alloc_methods);
+}
+
+NTSTATUS idmap_ldap_init(void)
+{
+	NTSTATUS ret;
+
+	/* FIXME: bad hack to actually register also the alloc_ldap module without changining configure.in */
+	ret = idmap_alloc_ldap_init();
+	if (! NT_STATUS_IS_OK(ret)) {
+		return ret;
+	}
+	return smb_register_idmap(SMB_IDMAP_INTERFACE_VERSION, "ldap", &idmap_ldap_methods);
+}
+