/* 
   Unix SMB/CIFS mplementation.
   DSDB schema syntaxes
   
   Copyright (C) Stefan Metzmacher <metze@samba.org> 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 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 "dsdb/samdb/samdb.h"
#include "librpc/gen_ndr/ndr_drsuapi.h"
#include "lib/ldb/include/ldb.h"
#include "system/time.h"
#include "lib/charset/charset.h"
#include "librpc/ndr/libndr.h"
#include "param/param.h"

static WERROR dsdb_syntax_FOOBAR_drsuapi_to_ldb(const struct dsdb_schema *schema,
						const struct dsdb_attribute *attr,
						const struct drsuapi_DsReplicaAttribute *in,
						TALLOC_CTX *mem_ctx,
						struct ldb_message_element *out)
{
	uint32_t i;

	out->flags	= 0;
	out->name	= talloc_strdup(mem_ctx, attr->lDAPDisplayName);
	W_ERROR_HAVE_NO_MEMORY(out->name);

	out->num_values	= in->value_ctr.num_values;
	out->values	= talloc_array(mem_ctx, struct ldb_val, out->num_values);
	W_ERROR_HAVE_NO_MEMORY(out->values);

	for (i=0; i < out->num_values; i++) {
		char *str;

		if (in->value_ctr.values[i].blob == NULL) {
			return WERR_FOOBAR;
		}

		str = talloc_asprintf(out->values, "%s: not implemented",
				      attr->syntax->name);
		W_ERROR_HAVE_NO_MEMORY(str);

		out->values[i] = data_blob_string_const(str);
	}

	return WERR_OK;
}

static WERROR dsdb_syntax_FOOBAR_ldb_to_drsuapi(const struct dsdb_schema *schema,
						const struct dsdb_attribute *attr,
						const struct ldb_message_element *in,
						TALLOC_CTX *mem_ctx,
						struct drsuapi_DsReplicaAttribute *out)
{
	return WERR_FOOBAR;
}

static WERROR dsdb_syntax_BOOL_drsuapi_to_ldb(const struct dsdb_schema *schema,
					      const struct dsdb_attribute *attr,
					      const struct drsuapi_DsReplicaAttribute *in,
					      TALLOC_CTX *mem_ctx,
					      struct ldb_message_element *out)
{
	uint32_t i;

	out->flags	= 0;
	out->name	= talloc_strdup(mem_ctx, attr->lDAPDisplayName);
	W_ERROR_HAVE_NO_MEMORY(out->name);

	out->num_values	= in->value_ctr.num_values;
	out->values	= talloc_array(mem_ctx, struct ldb_val, out->num_values);
	W_ERROR_HAVE_NO_MEMORY(out->values);

	for (i=0; i < out->num_values; i++) {
		uint32_t v;
		char *str;

		if (in->value_ctr.values[i].blob == NULL) {
			return WERR_FOOBAR;
		}

		if (in->value_ctr.values[i].blob->length != 4) {
			return WERR_FOOBAR;
		}

		v = IVAL(in->value_ctr.values[i].blob->data, 0);

		if (v != 0) {
			str = talloc_strdup(out->values, "TRUE");
			W_ERROR_HAVE_NO_MEMORY(str);
		} else {
			str = talloc_strdup(out->values, "FALSE");
			W_ERROR_HAVE_NO_MEMORY(str);
		}

		out->values[i] = data_blob_string_const(str);
	}

	return WERR_OK;
}

static WERROR dsdb_syntax_BOOL_ldb_to_drsuapi(const struct dsdb_schema *schema,
					      const struct dsdb_attribute *attr,
					      const struct ldb_message_element *in,
					      TALLOC_CTX *mem_ctx,
					      struct drsuapi_DsReplicaAttribute *out)
{
	uint32_t i;
	DATA_BLOB *blobs;

	if (attr->attributeID_id == 0xFFFFFFFF) {
		return WERR_FOOBAR;
	}

	out->attid			= attr->attributeID_id;
	out->value_ctr.num_values	= in->num_values;
	out->value_ctr.values		= talloc_array(mem_ctx,
						       struct drsuapi_DsAttributeValue,
						       in->num_values);
	W_ERROR_HAVE_NO_MEMORY(out->value_ctr.values);

	blobs = talloc_array(mem_ctx, DATA_BLOB, in->num_values);
	W_ERROR_HAVE_NO_MEMORY(blobs);

	for (i=0; i < in->num_values; i++) {
		out->value_ctr.values[i].blob	= &blobs[i];

		blobs[i] = data_blob_talloc(blobs, NULL, 4);
		W_ERROR_HAVE_NO_MEMORY(blobs[i].data);

		if (strcmp("TRUE", (const char *)in->values[i].data) == 0) {
			SIVAL(blobs[i].data, 0, 0x00000001);
		} else if (strcmp("FALSE", (const char *)in->values[i].data) == 0) {
			SIVAL(blobs[i].data, 0, 0x00000000);
		} else {
			return WERR_FOOBAR;
		}
	}

	return WERR_OK;
}

static WERROR dsdb_syntax_INT32_drsuapi_to_ldb(const struct dsdb_schema *schema,
					       const struct dsdb_attribute *attr,
					       const struct drsuapi_DsReplicaAttribute *in,
					       TALLOC_CTX *mem_ctx,
					       struct ldb_message_element *out)
{
	uint32_t i;

	out->flags	= 0;
	out->name	= talloc_strdup(mem_ctx, attr->lDAPDisplayName);
	W_ERROR_HAVE_NO_MEMORY(out->name);

	out->num_values	= in->value_ctr.num_values;
	out->values	= talloc_array(mem_ctx, struct ldb_val, out->num_values);
	W_ERROR_HAVE_NO_MEMORY(out->values);

	for (i=0; i < out->num_values; i++) {
		int32_t v;
		char *str;

		if (in->value_ctr.values[i].blob == NULL) {
			return WERR_FOOBAR;
		}

		if (in->value_ctr.values[i].blob->length != 4) {
			return WERR_FOOBAR;
		}

		v = IVALS(in->value_ctr.values[i].blob->data, 0);

		str = talloc_asprintf(out->values, "%d", v);
		W_ERROR_HAVE_NO_MEMORY(str);

		out->values[i] = data_blob_string_const(str);
	}

	return WERR_OK;
}

static WERROR dsdb_syntax_INT32_ldb_to_drsuapi(const struct dsdb_schema *schema,
					       const struct dsdb_attribute *attr,
					       const struct ldb_message_element *in,
					       TALLOC_CTX *mem_ctx,
					       struct drsuapi_DsReplicaAttribute *out)
{
	uint32_t i;
	DATA_BLOB *blobs;

	if (attr->attributeID_id == 0xFFFFFFFF) {
		return WERR_FOOBAR;
	}

	out->attid			= attr->attributeID_id;
	out->value_ctr.num_values	= in->num_values;
	out->value_ctr.values		= talloc_array(mem_ctx,
						       struct drsuapi_DsAttributeValue,
						       in->num_values);
	W_ERROR_HAVE_NO_MEMORY(out->value_ctr.values);

	blobs = talloc_array(mem_ctx, DATA_BLOB, in->num_values);
	W_ERROR_HAVE_NO_MEMORY(blobs);

	for (i=0; i < in->num_values; i++) {
		int32_t v;

		out->value_ctr.values[i].blob	= &blobs[i];

		blobs[i] = data_blob_talloc(blobs, NULL, 4);
		W_ERROR_HAVE_NO_MEMORY(blobs[i].data);

		v = strtol((const char *)in->values[i].data, NULL, 10);

		SIVALS(blobs[i].data, 0, v);
	}

	return WERR_OK;
}

static WERROR dsdb_syntax_INT64_drsuapi_to_ldb(const struct dsdb_schema *schema,
					       const struct dsdb_attribute *attr,
					       const struct drsuapi_DsReplicaAttribute *in,
					       TALLOC_CTX *mem_ctx,
					       struct ldb_message_element *out)
{
	uint32_t i;

	out->flags	= 0;
	out->name	= talloc_strdup(mem_ctx, attr->lDAPDisplayName);
	W_ERROR_HAVE_NO_MEMORY(out->name);

	out->num_values	= in->value_ctr.num_values;
	out->values	= talloc_array(mem_ctx, struct ldb_val, out->num_values);
	W_ERROR_HAVE_NO_MEMORY(out->values);

	for (i=0; i < out->num_values; i++) {
		int64_t v;
		char *str;

		if (in->value_ctr.values[i].blob == NULL) {
			return WERR_FOOBAR;
		}

		if (in->value_ctr.values[i].blob->length != 8) {
			return WERR_FOOBAR;
		}

		v = BVALS(in->value_ctr.values[i].blob->data, 0);

		str = talloc_asprintf(out->values, "%lld", (long long int)v);
		W_ERROR_HAVE_NO_MEMORY(str);

		out->values[i] = data_blob_string_const(str);
	}

	return WERR_OK;
}

static WERROR dsdb_syntax_INT64_ldb_to_drsuapi(const struct dsdb_schema *schema,
					       const struct dsdb_attribute *attr,
					       const struct ldb_message_element *in,
					       TALLOC_CTX *mem_ctx,
					       struct drsuapi_DsReplicaAttribute *out)
{
	uint32_t i;
	DATA_BLOB *blobs;

	if (attr->attributeID_id == 0xFFFFFFFF) {
		return WERR_FOOBAR;
	}

	out->attid			= attr->attributeID_id;
	out->value_ctr.num_values	= in->num_values;
	out->value_ctr.values		= talloc_array(mem_ctx,
						       struct drsuapi_DsAttributeValue,
						       in->num_values);
	W_ERROR_HAVE_NO_MEMORY(out->value_ctr.values);

	blobs = talloc_array(mem_ctx, DATA_BLOB, in->num_values);
	W_ERROR_HAVE_NO_MEMORY(blobs);

	for (i=0; i < in->num_values; i++) {
		int64_t v;

		out->value_ctr.values[i].blob	= &blobs[i];

		blobs[i] = data_blob_talloc(blobs, NULL, 8);
		W_ERROR_HAVE_NO_MEMORY(blobs[i].data);

		v = strtoll((const char *)in->values[i].data, NULL, 10);

		SBVALS(blobs[i].data, 0, v);
	}

	return WERR_OK;
}

static WERROR dsdb_syntax_NTTIME_UTC_drsuapi_to_ldb(const struct dsdb_schema *schema,
						    const struct dsdb_attribute *attr,
						    const struct drsuapi_DsReplicaAttribute *in,
						    TALLOC_CTX *mem_ctx,
						    struct ldb_message_element *out)
{
	uint32_t i;

	out->flags	= 0;
	out->name	= talloc_strdup(mem_ctx, attr->lDAPDisplayName);
	W_ERROR_HAVE_NO_MEMORY(out->name);

	out->num_values	= in->value_ctr.num_values;
	out->values	= talloc_array(mem_ctx, struct ldb_val, out->num_values);
	W_ERROR_HAVE_NO_MEMORY(out->values);

	for (i=0; i < out->num_values; i++) {
		NTTIME v;
		time_t t;
		char *str;

		if (in->value_ctr.values[i].blob == NULL) {
			return WERR_FOOBAR;
		}

		if (in->value_ctr.values[i].blob->length != 8) {
			return WERR_FOOBAR;
		}

		v = BVAL(in->value_ctr.values[i].blob->data, 0);
		v *= 10000000;
		t = nt_time_to_unix(v);

		/* 
		 * NOTE: On a w2k3 server you can set a GeneralizedTime string
		 *       via LDAP, but you get back an UTCTime string,
		 *       but via DRSUAPI you get back the NTTIME_1sec value
		 *       that represents the GeneralizedTime value!
		 *
		 *       So if we store the UTCTime string in our ldb
		 *       we'll loose information!
		 */
		str = ldb_timestring_utc(out->values, t); 
		W_ERROR_HAVE_NO_MEMORY(str);
		out->values[i] = data_blob_string_const(str);
	}

	return WERR_OK;
}

static WERROR dsdb_syntax_NTTIME_UTC_ldb_to_drsuapi(const struct dsdb_schema *schema,
						    const struct dsdb_attribute *attr,
						    const struct ldb_message_element *in,
						    TALLOC_CTX *mem_ctx,
						    struct drsuapi_DsReplicaAttribute *out)
{
	uint32_t i;
	DATA_BLOB *blobs;

	if (attr->attributeID_id == 0xFFFFFFFF) {
		return WERR_FOOBAR;
	}

	out->attid			= attr->attributeID_id;
	out->value_ctr.num_values	= in->num_values;
	out->value_ctr.values		= talloc_array(mem_ctx,
						       struct drsuapi_DsAttributeValue,
						       in->num_values);
	W_ERROR_HAVE_NO_MEMORY(out->value_ctr.values);

	blobs = talloc_array(mem_ctx, DATA_BLOB, in->num_values);
	W_ERROR_HAVE_NO_MEMORY(blobs);

	for (i=0; i < in->num_values; i++) {
		NTTIME v;
		time_t t;

		out->value_ctr.values[i].blob	= &blobs[i];

		blobs[i] = data_blob_talloc(blobs, NULL, 8);
		W_ERROR_HAVE_NO_MEMORY(blobs[i].data);

		t = ldb_string_utc_to_time((const char *)in->values[i].data);
		unix_to_nt_time(&v, t);
		v /= 10000000;

		SBVAL(blobs[i].data, 0, v);
	}

	return WERR_OK;
}

static WERROR dsdb_syntax_NTTIME_drsuapi_to_ldb(const struct dsdb_schema *schema,
						const struct dsdb_attribute *attr,
						const struct drsuapi_DsReplicaAttribute *in,
						TALLOC_CTX *mem_ctx,
						struct ldb_message_element *out)
{
	uint32_t i;

	out->flags	= 0;
	out->name	= talloc_strdup(mem_ctx, attr->lDAPDisplayName);
	W_ERROR_HAVE_NO_MEMORY(out->name);

	out->num_values	= in->value_ctr.num_values;
	out->values	= talloc_array(mem_ctx, struct ldb_val, out->num_values);
	W_ERROR_HAVE_NO_MEMORY(out->values);

	for (i=0; i < out->num_values; i++) {
		NTTIME v;
		time_t t;
		char *str;

		if (in->value_ctr.values[i].blob == NULL) {
			return WERR_FOOBAR;
		}

		if (in->value_ctr.values[i].blob->length != 8) {
			return WERR_FOOBAR;
		}

		v = BVAL(in->value_ctr.values[i].blob->data, 0);
		v *= 10000000;
		t = nt_time_to_unix(v);

		str = ldb_timestring(out->values, t); 
		W_ERROR_HAVE_NO_MEMORY(str);

		out->values[i] = data_blob_string_const(str);
	}

	return WERR_OK;
}

static WERROR dsdb_syntax_NTTIME_ldb_to_drsuapi(const struct dsdb_schema *schema,
						const struct dsdb_attribute *attr,
						const struct ldb_message_element *in,
						TALLOC_CTX *mem_ctx,
						struct drsuapi_DsReplicaAttribute *out)
{
	uint32_t i;
	DATA_BLOB *blobs;

	if (attr->attributeID_id == 0xFFFFFFFF) {
		return WERR_FOOBAR;
	}

	out->attid			= attr->attributeID_id;
	out->value_ctr.num_values	= in->num_values;
	out->value_ctr.values		= talloc_array(mem_ctx,
						       struct drsuapi_DsAttributeValue,
						       in->num_values);
	W_ERROR_HAVE_NO_MEMORY(out->value_ctr.values);

	blobs = talloc_array(mem_ctx, DATA_BLOB, in->num_values);
	W_ERROR_HAVE_NO_MEMORY(blobs);

	for (i=0; i < in->num_values; i++) {
		NTTIME v;
		time_t t;

		out->value_ctr.values[i].blob	= &blobs[i];

		blobs[i] = data_blob_talloc(blobs, NULL, 8);
		W_ERROR_HAVE_NO_MEMORY(blobs[i].data);

		t = ldb_string_to_time((const char *)in->values[i].data);
		unix_to_nt_time(&v, t);
		v /= 10000000;

		SBVAL(blobs[i].data, 0, v);
	}

	return WERR_OK;
}

static WERROR dsdb_syntax_DATA_BLOB_drsuapi_to_ldb(const struct dsdb_schema *schema,
						   const struct dsdb_attribute *attr,
						   const struct drsuapi_DsReplicaAttribute *in,
						   TALLOC_CTX *mem_ctx,
						   struct ldb_message_element *out)
{
	uint32_t i;

	out->flags	= 0;
	out->name	= talloc_strdup(mem_ctx, attr->lDAPDisplayName);
	W_ERROR_HAVE_NO_MEMORY(out->name);

	out->num_values	= in->value_ctr.num_values;
	out->values	= talloc_array(mem_ctx, struct ldb_val, out->num_values);
	W_ERROR_HAVE_NO_MEMORY(out->values);

	for (i=0; i < out->num_values; i++) {
		if (in->value_ctr.values[i].blob == NULL) {
			return WERR_FOOBAR;
		}

		if (in->value_ctr.values[i].blob->length == 0) {
			return WERR_FOOBAR;
		}

		out->values[i] = data_blob_dup_talloc(out->values,
						      in->value_ctr.values[i].blob);
		W_ERROR_HAVE_NO_MEMORY(out->values[i].data);
	}

	return WERR_OK;
}

static WERROR dsdb_syntax_DATA_BLOB_ldb_to_drsuapi(const struct dsdb_schema *schema,
						   const struct dsdb_attribute *attr,
						   const struct ldb_message_element *in,
						   TALLOC_CTX *mem_ctx,
						   struct drsuapi_DsReplicaAttribute *out)
{
	uint32_t i;
	DATA_BLOB *blobs;

	if (attr->attributeID_id == 0xFFFFFFFF) {
		return WERR_FOOBAR;
	}

	out->attid			= attr->attributeID_id;
	out->value_ctr.num_values	= in->num_values;
	out->value_ctr.values		= talloc_array(mem_ctx,
						       struct drsuapi_DsAttributeValue,
						       in->num_values);
	W_ERROR_HAVE_NO_MEMORY(out->value_ctr.values);

	blobs = talloc_array(mem_ctx, DATA_BLOB, in->num_values);
	W_ERROR_HAVE_NO_MEMORY(blobs);

	for (i=0; i < in->num_values; i++) {
		out->value_ctr.values[i].blob	= &blobs[i];

		blobs[i] = data_blob_dup_talloc(blobs, &in->values[i]);
		W_ERROR_HAVE_NO_MEMORY(blobs[i].data);
	}

	return WERR_OK;
}

static WERROR _dsdb_syntax_OID_obj_drsuapi_to_ldb(const struct dsdb_schema *schema,
						  const struct dsdb_attribute *attr,
						  const struct drsuapi_DsReplicaAttribute *in,
						  TALLOC_CTX *mem_ctx,
						  struct ldb_message_element *out)
{
	uint32_t i;

	out->flags	= 0;
	out->name	= talloc_strdup(mem_ctx, attr->lDAPDisplayName);
	W_ERROR_HAVE_NO_MEMORY(out->name);

	out->num_values	= in->value_ctr.num_values;
	out->values	= talloc_array(mem_ctx, struct ldb_val, out->num_values);
	W_ERROR_HAVE_NO_MEMORY(out->values);

	for (i=0; i < out->num_values; i++) {
		uint32_t v;
		const struct dsdb_class *c;
		const char *str;

		if (in->value_ctr.values[i].blob == NULL) {
			return WERR_FOOBAR;
		}

		if (in->value_ctr.values[i].blob->length != 4) {
			return WERR_FOOBAR;
		}

		v = IVAL(in->value_ctr.values[i].blob->data, 0);

		c = dsdb_class_by_governsID_id(schema, v);
		if (!c) {
			return WERR_FOOBAR;
		}

		str = talloc_strdup(out->values, c->lDAPDisplayName);
		W_ERROR_HAVE_NO_MEMORY(str);

		/* the values need to be reversed */
		out->values[out->num_values - (i + 1)] = data_blob_string_const(str);
	}

	return WERR_OK;
}

static WERROR _dsdb_syntax_OID_oid_drsuapi_to_ldb(const struct dsdb_schema *schema,
						  const struct dsdb_attribute *attr,
						  const struct drsuapi_DsReplicaAttribute *in,
						  TALLOC_CTX *mem_ctx,
						  struct ldb_message_element *out)
{
	uint32_t i;

	out->flags	= 0;
	out->name	= talloc_strdup(mem_ctx, attr->lDAPDisplayName);
	W_ERROR_HAVE_NO_MEMORY(out->name);

	out->num_values	= in->value_ctr.num_values;
	out->values	= talloc_array(mem_ctx, struct ldb_val, out->num_values);
	W_ERROR_HAVE_NO_MEMORY(out->values);

	for (i=0; i < out->num_values; i++) {
		uint32_t v;
		WERROR status;
		const char *str;

		if (in->value_ctr.values[i].blob == NULL) {
			return WERR_FOOBAR;
		}

		if (in->value_ctr.values[i].blob->length != 4) {
			return WERR_FOOBAR;
		}

		v = IVAL(in->value_ctr.values[i].blob->data, 0);

		status = dsdb_map_int2oid(schema, v, out->values, &str);
		W_ERROR_NOT_OK_RETURN(status);

		out->values[i] = data_blob_string_const(str);
	}

	return WERR_OK;
}

static WERROR dsdb_syntax_OID_drsuapi_to_ldb(const struct dsdb_schema *schema,
					     const struct dsdb_attribute *attr,
					     const struct drsuapi_DsReplicaAttribute *in,
					     TALLOC_CTX *mem_ctx,
					     struct ldb_message_element *out)
{
	uint32_t i;

	switch (attr->attributeID_id) {
	case DRSUAPI_ATTRIBUTE_objectClass:
		return _dsdb_syntax_OID_obj_drsuapi_to_ldb(schema, attr, in, mem_ctx, out);
	case DRSUAPI_ATTRIBUTE_governsID:
	case DRSUAPI_ATTRIBUTE_attributeID:
	case DRSUAPI_ATTRIBUTE_attributeSyntax:
		return _dsdb_syntax_OID_oid_drsuapi_to_ldb(schema, attr, in, mem_ctx, out);
	}

	out->flags	= 0;
	out->name	= talloc_strdup(mem_ctx, attr->lDAPDisplayName);
	W_ERROR_HAVE_NO_MEMORY(out->name);

	out->num_values	= in->value_ctr.num_values;
	out->values	= talloc_array(mem_ctx, struct ldb_val, out->num_values);
	W_ERROR_HAVE_NO_MEMORY(out->values);

	for (i=0; i < out->num_values; i++) {
		uint32_t v;
		const char *name;
		char *str;

		if (in->value_ctr.values[i].blob == NULL) {
			return WERR_FOOBAR;
		}

		if (in->value_ctr.values[i].blob->length != 4) {
			return WERR_FOOBAR;
		}

		v = IVAL(in->value_ctr.values[i].blob->data, 0);

		name = dsdb_lDAPDisplayName_by_id(schema, v);
		if (!name) {
			return WERR_FOOBAR;
		}

		str = talloc_strdup(out->values, name);
		W_ERROR_HAVE_NO_MEMORY(str);

		out->values[i] = data_blob_string_const(str);
	}

	return WERR_OK;
}

static WERROR dsdb_syntax_OID_ldb_to_drsuapi(const struct dsdb_schema *schema,
					     const struct dsdb_attribute *attr,
					     const struct ldb_message_element *in,
					     TALLOC_CTX *mem_ctx,
					     struct drsuapi_DsReplicaAttribute *out)
{
	uint32_t i;
	DATA_BLOB *blobs;

	if (attr->attributeID_id == 0xFFFFFFFF) {
		return WERR_FOOBAR;
	}

	switch (attr->attributeID_id) {
	case DRSUAPI_ATTRIBUTE_objectClass:
	case DRSUAPI_ATTRIBUTE_governsID:
	case DRSUAPI_ATTRIBUTE_attributeID:
	case DRSUAPI_ATTRIBUTE_attributeSyntax:
		return dsdb_syntax_FOOBAR_ldb_to_drsuapi(schema, attr, in, mem_ctx, out);
	}

	out->attid			= attr->attributeID_id;
	out->value_ctr.num_values	= in->num_values;
	out->value_ctr.values		= talloc_array(mem_ctx,
						       struct drsuapi_DsAttributeValue,
						       in->num_values);
	W_ERROR_HAVE_NO_MEMORY(out->value_ctr.values);

	blobs = talloc_array(mem_ctx, DATA_BLOB, in->num_values);
	W_ERROR_HAVE_NO_MEMORY(blobs);

	for (i=0; i < in->num_values; i++) {
		uint32_t v;

		out->value_ctr.values[i].blob	= &blobs[i];

		blobs[i] = data_blob_talloc(blobs, NULL, 4);
		W_ERROR_HAVE_NO_MEMORY(blobs[i].data);

		v = strtol((const char *)in->values[i].data, NULL, 10);

		SIVAL(blobs[i].data, 0, v);
	}

	return WERR_OK;
}

static WERROR dsdb_syntax_UNICODE_drsuapi_to_ldb(const struct dsdb_schema *schema,
						 const struct dsdb_attribute *attr,
						 const struct drsuapi_DsReplicaAttribute *in,
						 TALLOC_CTX *mem_ctx,
						 struct ldb_message_element *out)
{
	uint32_t i;

	out->flags	= 0;
	out->name	= talloc_strdup(mem_ctx, attr->lDAPDisplayName);
	W_ERROR_HAVE_NO_MEMORY(out->name);

	out->num_values	= in->value_ctr.num_values;
	out->values	= talloc_array(mem_ctx, struct ldb_val, out->num_values);
	W_ERROR_HAVE_NO_MEMORY(out->values);

	for (i=0; i < out->num_values; i++) {
		ssize_t ret;
		char *str;

		if (in->value_ctr.values[i].blob == NULL) {
			return WERR_FOOBAR;
		}

		if (in->value_ctr.values[i].blob->length == 0) {
			return WERR_FOOBAR;
		}

		ret = convert_string_talloc(out->values, lp_iconv_convenience(global_loadparm), CH_UTF16, CH_UNIX,
					    in->value_ctr.values[i].blob->data,
					    in->value_ctr.values[i].blob->length,
					    (void **)&str);
		if (ret == -1) {
			return WERR_FOOBAR;
		}

		out->values[i] = data_blob_string_const(str);
	}

	return WERR_OK;
}

static WERROR dsdb_syntax_UNICODE_ldb_to_drsuapi(const struct dsdb_schema *schema,
						 const struct dsdb_attribute *attr,
						 const struct ldb_message_element *in,
						 TALLOC_CTX *mem_ctx,
						 struct drsuapi_DsReplicaAttribute *out)
{
	uint32_t i;
	DATA_BLOB *blobs;

	if (attr->attributeID_id == 0xFFFFFFFF) {
		return WERR_FOOBAR;
	}

	out->attid			= attr->attributeID_id;
	out->value_ctr.num_values	= in->num_values;
	out->value_ctr.values		= talloc_array(mem_ctx,
						       struct drsuapi_DsAttributeValue,
						       in->num_values);
	W_ERROR_HAVE_NO_MEMORY(out->value_ctr.values);

	blobs = talloc_array(mem_ctx, DATA_BLOB, in->num_values);
	W_ERROR_HAVE_NO_MEMORY(blobs);

	for (i=0; i < in->num_values; i++) {
		ssize_t ret;

		out->value_ctr.values[i].blob	= &blobs[i];

		ret = convert_string_talloc(blobs, lp_iconv_convenience(global_loadparm), CH_UNIX, CH_UTF16,
					    in->values[i].data,
					    in->values[i].length,
					    (void **)&blobs[i].data);
		if (ret == -1) {
			return WERR_FOOBAR;
		}
		blobs[i].length = ret;
	}

	return WERR_OK;
}

static WERROR dsdb_syntax_DN_drsuapi_to_ldb(const struct dsdb_schema *schema,
					    const struct dsdb_attribute *attr,
					    const struct drsuapi_DsReplicaAttribute *in,
					    TALLOC_CTX *mem_ctx,
					    struct ldb_message_element *out)
{
	uint32_t i;

	out->flags	= 0;
	out->name	= talloc_strdup(mem_ctx, attr->lDAPDisplayName);
	W_ERROR_HAVE_NO_MEMORY(out->name);

	out->num_values	= in->value_ctr.num_values;
	out->values	= talloc_array(mem_ctx, struct ldb_val, out->num_values);
	W_ERROR_HAVE_NO_MEMORY(out->values);

	for (i=0; i < out->num_values; i++) {
		struct drsuapi_DsReplicaObjectIdentifier3 id3;
		enum ndr_err_code ndr_err;

		if (in->value_ctr.values[i].blob == NULL) {
			return WERR_FOOBAR;
		}

		if (in->value_ctr.values[i].blob->length == 0) {
			return WERR_FOOBAR;
		}

		ndr_err = ndr_pull_struct_blob_all(in->value_ctr.values[i].blob,
						   out->values, &id3,
						   (ndr_pull_flags_fn_t)ndr_pull_drsuapi_DsReplicaObjectIdentifier3);
		if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
			NTSTATUS status = ndr_map_error2ntstatus(ndr_err);
			return ntstatus_to_werror(status);
		}

		/* TODO: handle id3.guid and id3.sid */
		out->values[i] = data_blob_string_const(id3.dn);
	}

	return WERR_OK;
}

static WERROR dsdb_syntax_DN_ldb_to_drsuapi(const struct dsdb_schema *schema,
					    const struct dsdb_attribute *attr,
					    const struct ldb_message_element *in,
					    TALLOC_CTX *mem_ctx,
					    struct drsuapi_DsReplicaAttribute *out)
{
	uint32_t i;
	DATA_BLOB *blobs;

	if (attr->attributeID_id == 0xFFFFFFFF) {
		return WERR_FOOBAR;
	}

	out->attid			= attr->attributeID_id;
	out->value_ctr.num_values	= in->num_values;
	out->value_ctr.values		= talloc_array(mem_ctx,
						       struct drsuapi_DsAttributeValue,
						       in->num_values);
	W_ERROR_HAVE_NO_MEMORY(out->value_ctr.values);

	blobs = talloc_array(mem_ctx, DATA_BLOB, in->num_values);
	W_ERROR_HAVE_NO_MEMORY(blobs);

	for (i=0; i < in->num_values; i++) {
		struct drsuapi_DsReplicaObjectIdentifier3 id3;
		enum ndr_err_code ndr_err;

		out->value_ctr.values[i].blob	= &blobs[i];

		/* TODO: handle id3.guid and id3.sid */
		ZERO_STRUCT(id3);
		id3.dn = (const char *)in->values[i].data;

		ndr_err = ndr_push_struct_blob(&blobs[i], blobs, &id3,
					       (ndr_push_flags_fn_t)ndr_push_drsuapi_DsReplicaObjectIdentifier3);
		if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
			NTSTATUS status = ndr_map_error2ntstatus(ndr_err);
			return ntstatus_to_werror(status);
		}
	}

	return WERR_OK;
}

static WERROR dsdb_syntax_DN_BINARY_drsuapi_to_ldb(const struct dsdb_schema *schema,
						   const struct dsdb_attribute *attr,
						   const struct drsuapi_DsReplicaAttribute *in,
						   TALLOC_CTX *mem_ctx,
						   struct ldb_message_element *out)
{
	uint32_t i;

	out->flags	= 0;
	out->name	= talloc_strdup(mem_ctx, attr->lDAPDisplayName);
	W_ERROR_HAVE_NO_MEMORY(out->name);

	out->num_values	= in->value_ctr.num_values;
	out->values	= talloc_array(mem_ctx, struct ldb_val, out->num_values);
	W_ERROR_HAVE_NO_MEMORY(out->values);

	for (i=0; i < out->num_values; i++) {
		struct drsuapi_DsReplicaObjectIdentifier3Binary id3b;
		char *binary;
		char *str;
		enum ndr_err_code ndr_err;

		if (in->value_ctr.values[i].blob == NULL) {
			return WERR_FOOBAR;
		}

		if (in->value_ctr.values[i].blob->length == 0) {
			return WERR_FOOBAR;
		}

		ndr_err = ndr_pull_struct_blob_all(in->value_ctr.values[i].blob,
						   out->values, &id3b,
						   (ndr_pull_flags_fn_t)ndr_pull_drsuapi_DsReplicaObjectIdentifier3Binary);
		if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
			NTSTATUS status = ndr_map_error2ntstatus(ndr_err);
			return ntstatus_to_werror(status);
		}

		/* TODO: handle id3.guid and id3.sid */
		binary = data_blob_hex_string(out->values, &id3b.binary);
		W_ERROR_HAVE_NO_MEMORY(binary);

		str = talloc_asprintf(out->values, "B:%u:%s:%s",
				      (unsigned int)(id3b.binary.length * 2), /* because of 2 hex chars per byte */
				      binary,
				      id3b.dn);
		W_ERROR_HAVE_NO_MEMORY(str);

		/* TODO: handle id3.guid and id3.sid */
		out->values[i] = data_blob_string_const(str);
	}

	return WERR_OK;
}

static WERROR dsdb_syntax_DN_BINARY_ldb_to_drsuapi(const struct dsdb_schema *schema,
						   const struct dsdb_attribute *attr,
						   const struct ldb_message_element *in,
						   TALLOC_CTX *mem_ctx,
						   struct drsuapi_DsReplicaAttribute *out)
{
	uint32_t i;
	DATA_BLOB *blobs;

	if (attr->attributeID_id == 0xFFFFFFFF) {
		return WERR_FOOBAR;
	}

	out->attid			= attr->attributeID_id;
	out->value_ctr.num_values	= in->num_values;
	out->value_ctr.values		= talloc_array(mem_ctx,
						       struct drsuapi_DsAttributeValue,
						       in->num_values);
	W_ERROR_HAVE_NO_MEMORY(out->value_ctr.values);

	blobs = talloc_array(mem_ctx, DATA_BLOB, in->num_values);
	W_ERROR_HAVE_NO_MEMORY(blobs);

	for (i=0; i < in->num_values; i++) {
		struct drsuapi_DsReplicaObjectIdentifier3Binary id3b;
		enum ndr_err_code ndr_err;

		out->value_ctr.values[i].blob	= &blobs[i];

		/* TODO: handle id3b.guid and id3b.sid, id3.binary */
		ZERO_STRUCT(id3b);
		id3b.dn		= (const char *)in->values[i].data;
		id3b.binary	= data_blob(NULL, 0);

		ndr_err = ndr_push_struct_blob(&blobs[i], blobs, &id3b,
					       (ndr_push_flags_fn_t)ndr_push_drsuapi_DsReplicaObjectIdentifier3Binary);
		if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
			NTSTATUS status = ndr_map_error2ntstatus(ndr_err);
			return ntstatus_to_werror(status);
		}
	}

	return WERR_OK;
}

static WERROR dsdb_syntax_PRESENTATION_ADDRESS_drsuapi_to_ldb(const struct dsdb_schema *schema,
							      const struct dsdb_attribute *attr,
							      const struct drsuapi_DsReplicaAttribute *in,
							      TALLOC_CTX *mem_ctx,
							      struct ldb_message_element *out)
{
	uint32_t i;

	out->flags	= 0;
	out->name	= talloc_strdup(mem_ctx, attr->lDAPDisplayName);
	W_ERROR_HAVE_NO_MEMORY(out->name);

	out->num_values	= in->value_ctr.num_values;
	out->values	= talloc_array(mem_ctx, struct ldb_val, out->num_values);
	W_ERROR_HAVE_NO_MEMORY(out->values);

	for (i=0; i < out->num_values; i++) {
		uint32_t len;
		ssize_t ret;
		char *str;

		if (in->value_ctr.values[i].blob == NULL) {
			return WERR_FOOBAR;
		}

		if (in->value_ctr.values[i].blob->length < 4) {
			return WERR_FOOBAR;
		}

		len = IVAL(in->value_ctr.values[i].blob->data, 0);

		if (len != in->value_ctr.values[i].blob->length) {
			return WERR_FOOBAR;
		}

		ret = convert_string_talloc(out->values, lp_iconv_convenience(global_loadparm), CH_UTF16, CH_UNIX,
					    in->value_ctr.values[i].blob->data+4,
					    in->value_ctr.values[i].blob->length-4,
					    (void **)&str);
		if (ret == -1) {
			return WERR_FOOBAR;
		}

		out->values[i] = data_blob_string_const(str);
	}

	return WERR_OK;
}

static WERROR dsdb_syntax_PRESENTATION_ADDRESS_ldb_to_drsuapi(const struct dsdb_schema *schema,
							      const struct dsdb_attribute *attr,
							      const struct ldb_message_element *in,
							      TALLOC_CTX *mem_ctx,
							      struct drsuapi_DsReplicaAttribute *out)
{
	uint32_t i;
	DATA_BLOB *blobs;

	if (attr->attributeID_id == 0xFFFFFFFF) {
		return WERR_FOOBAR;
	}

	out->attid			= attr->attributeID_id;
	out->value_ctr.num_values	= in->num_values;
	out->value_ctr.values		= talloc_array(mem_ctx,
						       struct drsuapi_DsAttributeValue,
						       in->num_values);
	W_ERROR_HAVE_NO_MEMORY(out->value_ctr.values);

	blobs = talloc_array(mem_ctx, DATA_BLOB, in->num_values);
	W_ERROR_HAVE_NO_MEMORY(blobs);

	for (i=0; i < in->num_values; i++) {
		uint8_t *data;
		ssize_t ret;

		out->value_ctr.values[i].blob	= &blobs[i];

		ret = convert_string_talloc(blobs, lp_iconv_convenience(global_loadparm), CH_UNIX, CH_UTF16,
					    in->values[i].data,
					    in->values[i].length,
					    (void **)&data);
		if (ret == -1) {
			return WERR_FOOBAR;
		}

		blobs[i] = data_blob_talloc(blobs, NULL, 4 + ret);
		W_ERROR_HAVE_NO_MEMORY(blobs[i].data);

		SIVAL(blobs[i].data, 0, 4 + ret);

		if (ret > 0) {
			memcpy(blobs[i].data + 4, data, ret);
			talloc_free(data);
		}
	}

	return WERR_OK;
}


#define OMOBJECTCLASS(val) { .length = sizeof(val) - 1, .data = discard_const_p(uint8_t, val) }

static const struct dsdb_syntax dsdb_syntaxes[] = {
	{
		.name			= "Boolean",
		.ldap_oid		= "1.3.6.1.4.1.1466.115.121.1.7",
		.oMSyntax		= 1,
		.attributeSyntax_oid	= "2.5.5.8",
		.drsuapi_to_ldb		= dsdb_syntax_BOOL_drsuapi_to_ldb,
		.ldb_to_drsuapi		= dsdb_syntax_BOOL_ldb_to_drsuapi,
	},{
		.name			= "Integer",
		.ldap_oid		= "1.3.6.1.4.1.1466.115.121.1.27",
		.oMSyntax		= 2,
		.attributeSyntax_oid	= "2.5.5.9",
		.drsuapi_to_ldb		= dsdb_syntax_INT32_drsuapi_to_ldb,
		.ldb_to_drsuapi		= dsdb_syntax_INT32_ldb_to_drsuapi,
	},{
		.name			= "String(Octet)",
		.ldap_oid		= "1.3.6.1.4.1.1466.115.121.1.40",
		.oMSyntax		= 4,
		.attributeSyntax_oid	= "2.5.5.10",
		.drsuapi_to_ldb		= dsdb_syntax_DATA_BLOB_drsuapi_to_ldb,
		.ldb_to_drsuapi		= dsdb_syntax_DATA_BLOB_ldb_to_drsuapi,
	},{
		.name			= "String(Sid)",
		.ldap_oid		= "1.3.6.1.4.1.1466.115.121.1.40",
		.oMSyntax		= 4,
		.attributeSyntax_oid	= "2.5.5.17",
		.drsuapi_to_ldb		= dsdb_syntax_DATA_BLOB_drsuapi_to_ldb,
		.ldb_to_drsuapi		= dsdb_syntax_DATA_BLOB_ldb_to_drsuapi,
	},{
		.name			= "String(Object-Identifier)",
		.ldap_oid		= "1.3.6.1.4.1.1466.115.121.1.38",
		.oMSyntax		= 6,
		.attributeSyntax_oid	= "2.5.5.2",
		.drsuapi_to_ldb		= dsdb_syntax_OID_drsuapi_to_ldb,
		.ldb_to_drsuapi		= dsdb_syntax_OID_ldb_to_drsuapi,
	},{
		.name			= "Enumeration",
		.ldap_oid		= "1.3.6.1.4.1.1466.115.121.1.27",
		.oMSyntax		= 10,
		.attributeSyntax_oid	= "2.5.5.9",
		.drsuapi_to_ldb		= dsdb_syntax_INT32_drsuapi_to_ldb,
		.ldb_to_drsuapi		= dsdb_syntax_INT32_ldb_to_drsuapi,
	},{
	/* not used in w2k3 forest */
		.name			= "String(Numeric)",
		.ldap_oid		= "1.3.6.1.4.1.1466.115.121.1.36",
		.oMSyntax		= 18,
		.attributeSyntax_oid	= "2.5.5.6",
		.drsuapi_to_ldb		= dsdb_syntax_DATA_BLOB_drsuapi_to_ldb,
		.ldb_to_drsuapi		= dsdb_syntax_DATA_BLOB_ldb_to_drsuapi,
	},{
		.name			= "String(Printable)",
		.ldap_oid		= "1.3.6.1.4.1.1466.115.121.1.44",
		.oMSyntax		= 19,
		.attributeSyntax_oid	= "2.5.5.5",
		.drsuapi_to_ldb		= dsdb_syntax_DATA_BLOB_drsuapi_to_ldb,
		.ldb_to_drsuapi		= dsdb_syntax_DATA_BLOB_ldb_to_drsuapi,
	},{
		.name			= "String(Teletex)",
		.ldap_oid		= "1.2.840.113556.1.4.905",
		.oMSyntax		= 20,
		.attributeSyntax_oid	= "2.5.5.4",
		.drsuapi_to_ldb		= dsdb_syntax_DATA_BLOB_drsuapi_to_ldb,
		.ldb_to_drsuapi		= dsdb_syntax_DATA_BLOB_ldb_to_drsuapi,
	},{
		.name			= "String(IA5)",
		.ldap_oid		= "1.3.6.1.4.1.1466.115.121.1.26",
		.oMSyntax		= 22,
		.attributeSyntax_oid	= "2.5.5.5",
		.drsuapi_to_ldb		= dsdb_syntax_DATA_BLOB_drsuapi_to_ldb,
		.ldb_to_drsuapi		= dsdb_syntax_DATA_BLOB_ldb_to_drsuapi,
	},{
		.name			= "String(UTC-Time)",
		.ldap_oid		= "1.3.6.1.4.1.1466.115.121.1.53",
		.oMSyntax		= 23,
		.attributeSyntax_oid	= "2.5.5.11",
		.drsuapi_to_ldb		= dsdb_syntax_NTTIME_UTC_drsuapi_to_ldb,
		.ldb_to_drsuapi		= dsdb_syntax_NTTIME_UTC_ldb_to_drsuapi,
	},{
		.name			= "String(Generalized-Time)",
		.ldap_oid		= "1.3.6.1.4.1.1466.115.121.1.24",
		.oMSyntax		= 24,
		.attributeSyntax_oid	= "2.5.5.11",
		.drsuapi_to_ldb		= dsdb_syntax_NTTIME_drsuapi_to_ldb,
		.ldb_to_drsuapi		= dsdb_syntax_NTTIME_ldb_to_drsuapi,
	},{
	/* not used in w2k3 schema */
		.name			= "String(Case Sensitive)",
		.ldap_oid		= "1.2.840.113556.1.4.1362",
		.oMSyntax		= 27,
		.attributeSyntax_oid	= "2.5.5.3",
		.drsuapi_to_ldb		= dsdb_syntax_FOOBAR_drsuapi_to_ldb,
		.ldb_to_drsuapi		= dsdb_syntax_FOOBAR_ldb_to_drsuapi,
	},{
		.name			= "String(Unicode)",
		.ldap_oid		= "1.3.6.1.4.1.1466.115.121.1.15",
		.oMSyntax		= 64,
		.attributeSyntax_oid	= "2.5.5.12",
		.drsuapi_to_ldb		= dsdb_syntax_UNICODE_drsuapi_to_ldb,
		.ldb_to_drsuapi		= dsdb_syntax_UNICODE_ldb_to_drsuapi,
	},{
		.name			= "Interval/LargeInteger",
		.ldap_oid		= "1.2.840.113556.1.4.906",
		.oMSyntax		= 65,
		.attributeSyntax_oid	= "2.5.5.16",
		.drsuapi_to_ldb		= dsdb_syntax_INT64_drsuapi_to_ldb,
		.ldb_to_drsuapi		= dsdb_syntax_INT64_ldb_to_drsuapi,
	},{
		.name			= "String(NT-Sec-Desc)",
		.ldap_oid		= "1.2.840.113556.1.4.907",
		.oMSyntax		= 66,
		.attributeSyntax_oid	= "2.5.5.15",
		.drsuapi_to_ldb		= dsdb_syntax_DATA_BLOB_drsuapi_to_ldb,
		.ldb_to_drsuapi		= dsdb_syntax_DATA_BLOB_ldb_to_drsuapi,
	},{
		.name			= "Object(DS-DN)",
		.ldap_oid		= "1.3.6.1.4.1.1466.115.121.1.12",
		.oMSyntax		= 127,
		.oMObjectClass		= OMOBJECTCLASS("\x2b\x0c\x02\x87\x73\x1c\x00\x85\x4a"),
		.attributeSyntax_oid	= "2.5.5.1",
		.drsuapi_to_ldb		= dsdb_syntax_DN_drsuapi_to_ldb,
		.ldb_to_drsuapi		= dsdb_syntax_DN_ldb_to_drsuapi,
	},{
		.name			= "Object(DN-Binary)",
		.ldap_oid		= "1.2.840.113556.1.4.903",
		.oMSyntax		= 127,
		.oMObjectClass		= OMOBJECTCLASS("\x2a\x86\x48\x86\xf7\x14\x01\x01\x01\x0b"),
		.attributeSyntax_oid	= "2.5.5.7",
		.drsuapi_to_ldb		= dsdb_syntax_DN_BINARY_drsuapi_to_ldb,
		.ldb_to_drsuapi		= dsdb_syntax_DN_BINARY_ldb_to_drsuapi,
	},{
	/* not used in w2k3 schema */
		.name			= "Object(OR-Name)",
		.ldap_oid		= "1.2.840.113556.1.4.1221",
		.oMSyntax		= 127,
		.oMObjectClass		= OMOBJECTCLASS("\x56\x06\x01\x02\x05\x0b\x1D"),
		.attributeSyntax_oid	= "2.5.5.7",
		.drsuapi_to_ldb		= dsdb_syntax_FOOBAR_drsuapi_to_ldb,
		.ldb_to_drsuapi		= dsdb_syntax_FOOBAR_ldb_to_drsuapi,
	},{
	/* 
	 * TODO: verify if DATA_BLOB is correct here...!
	 *
	 *       repsFrom and repsTo are the only attributes using
	 *       this attribute syntax, but they're not replicated... 
	 */
		.name			= "Object(Replica-Link)",
		.ldap_oid		= "1.3.6.1.4.1.1466.115.121.1.40",
		.oMSyntax		= 127,
		.oMObjectClass		= OMOBJECTCLASS("\x2a\x86\x48\x86\xf7\x14\x01\x01\x01\x06"),
		.attributeSyntax_oid	= "2.5.5.10",
		.drsuapi_to_ldb		= dsdb_syntax_DATA_BLOB_drsuapi_to_ldb,
		.ldb_to_drsuapi		= dsdb_syntax_DATA_BLOB_ldb_to_drsuapi,
	},{
		.name			= "Object(Presentation-Address)",
		.ldap_oid		= "1.3.6.1.4.1.1466.115.121.1.43",
		.oMSyntax		= 127,
		.oMObjectClass		= OMOBJECTCLASS("\x2b\x0c\x02\x87\x73\x1c\x00\x85\x5c"),
		.attributeSyntax_oid	= "2.5.5.13",
		.drsuapi_to_ldb		= dsdb_syntax_PRESENTATION_ADDRESS_drsuapi_to_ldb,
		.ldb_to_drsuapi		= dsdb_syntax_PRESENTATION_ADDRESS_ldb_to_drsuapi,
	},{
	/* not used in w2k3 schema */
		.name			= "Object(Access-Point)",
		.ldap_oid		= "1.3.6.1.4.1.1466.115.121.1.2",
		.oMSyntax		= 127,
		.oMObjectClass		= OMOBJECTCLASS("\x2b\x0c\x02\x87\x73\x1c\x00\x85\x3e"),
		.attributeSyntax_oid	= "2.5.5.14",
		.drsuapi_to_ldb		= dsdb_syntax_FOOBAR_drsuapi_to_ldb,
		.ldb_to_drsuapi		= dsdb_syntax_FOOBAR_ldb_to_drsuapi,
	},{
	/* not used in w2k3 schema */
		.name			= "Object(DN-String)",
		.ldap_oid		= "1.2.840.113556.1.4.904",
		.oMSyntax		= 127,
		.oMObjectClass		= OMOBJECTCLASS("\x2a\x86\x48\x86\xf7\x14\x01\x01\x01\x0c"),
		.attributeSyntax_oid	= "2.5.5.14",
		.drsuapi_to_ldb		= dsdb_syntax_FOOBAR_drsuapi_to_ldb,
		.ldb_to_drsuapi		= dsdb_syntax_FOOBAR_ldb_to_drsuapi,
	}
};

const struct dsdb_syntax *dsdb_syntax_for_attribute(const struct dsdb_attribute *attr)
{
	uint32_t i;

	for (i=0; i < ARRAY_SIZE(dsdb_syntaxes); i++) {
		if (attr->oMSyntax != dsdb_syntaxes[i].oMSyntax) continue;

		if (attr->oMObjectClass.length != dsdb_syntaxes[i].oMObjectClass.length) continue;

		if (attr->oMObjectClass.length) {
			int ret;
			ret = memcmp(attr->oMObjectClass.data,
				     dsdb_syntaxes[i].oMObjectClass.data,
				     attr->oMObjectClass.length);
			if (ret != 0) continue;
		}

		if (strcmp(attr->attributeSyntax_oid, dsdb_syntaxes[i].attributeSyntax_oid) != 0) continue;

		return &dsdb_syntaxes[i];
	}

	return NULL;
}

WERROR dsdb_attribute_drsuapi_to_ldb(const struct dsdb_schema *schema,
				     const struct drsuapi_DsReplicaAttribute *in,
				     TALLOC_CTX *mem_ctx,
				     struct ldb_message_element *out)
{
	const struct dsdb_attribute *sa;

	sa = dsdb_attribute_by_attributeID_id(schema, in->attid);
	if (!sa) {
		return WERR_FOOBAR;
	}

	return sa->syntax->drsuapi_to_ldb(schema, sa, in, mem_ctx, out);
}

WERROR dsdb_attribute_ldb_to_drsuapi(const struct dsdb_schema *schema,
				     const struct ldb_message_element *in,
				     TALLOC_CTX *mem_ctx,
				     struct drsuapi_DsReplicaAttribute *out)
{
	const struct dsdb_attribute *sa;

	sa = dsdb_attribute_by_lDAPDisplayName(schema, in->name);
	if (!sa) {
		return WERR_FOOBAR;
	}

	return sa->syntax->ldb_to_drsuapi(schema, sa, in, mem_ctx, out);
}