1 files changed, 102 insertions, 0 deletions
diff --git a/source4/dsdb/schema/dsdb_dn.c b/source4/dsdb/schema/dsdb_dn.c
new file mode 100644
index 0000000..06565a9
--- /dev/null
+++ b/source4/dsdb/schema/dsdb_dn.c
@@ -0,0 +1,102 @@
+/* 
+   Unix SMB/CIFS implementation.
+   Samba utility functions
+
+   Copyright (C) Andrew Tridgell 2009
+   Copyright (C) Andrew Bartlett <abartlet@samba.org> 2009
+
+   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 <ldb_module.h>
+#include "librpc/ndr/libndr.h"
+#include "libcli/security/dom_sid.h"
+
+/*
+   convert a dsdb_dn to a linked attribute data blob
+*/
+WERROR dsdb_dn_la_to_blob(struct ldb_context *sam_ctx,
+			  const struct dsdb_attribute *schema_attrib,
+			  const struct dsdb_schema *schema,
+			  TALLOC_CTX *mem_ctx,
+			  struct dsdb_dn *dsdb_dn, DATA_BLOB **blob)
+{
+	struct ldb_val v;
+	WERROR werr;
+	struct ldb_message_element val_el;
+	struct drsuapi_DsReplicaAttribute drs;
+	struct dsdb_syntax_ctx syntax_ctx;
+
+	/* use default syntax conversion context */
+	dsdb_syntax_ctx_init(&syntax_ctx, sam_ctx, schema);
+
+	/* we need a message_element with just one value in it */
+	v = data_blob_string_const(dsdb_dn_get_extended_linearized(mem_ctx, dsdb_dn, 1));
+
+	val_el.name = schema_attrib->lDAPDisplayName;
+	val_el.values = &v;
+	val_el.num_values = 1;
+
+	werr = schema_attrib->syntax->ldb_to_drsuapi(&syntax_ctx, schema_attrib, &val_el, mem_ctx, &drs);
+	W_ERROR_NOT_OK_RETURN(werr);
+
+	if (drs.value_ctr.num_values != 1) {
+		DEBUG(1,(__location__ ": Failed to build DRS blob for linked attribute %s\n",
+			 schema_attrib->lDAPDisplayName));
+		return WERR_DS_DRA_INTERNAL_ERROR;
+	}
+
+	*blob = drs.value_ctr.values[0].blob;
+	return WERR_OK;
+}
+
+/*
+  convert a data blob to a dsdb_dn
+ */
+WERROR dsdb_dn_la_from_blob(struct ldb_context *sam_ctx,
+			    const struct dsdb_attribute *schema_attrib,
+			    const struct dsdb_schema *schema,
+			    TALLOC_CTX *mem_ctx,
+			    DATA_BLOB *blob,
+			    struct dsdb_dn **dsdb_dn)
+{
+	WERROR werr;
+	struct ldb_message_element new_el;
+	struct drsuapi_DsReplicaAttribute drs;
+	struct drsuapi_DsAttributeValue val;
+	struct dsdb_syntax_ctx syntax_ctx;
+
+	/* use default syntax conversion context */
+	dsdb_syntax_ctx_init(&syntax_ctx, sam_ctx, schema);
+
+	drs.value_ctr.num_values = 1;
+	drs.value_ctr.values = &val;
+	val.blob = blob;
+
+	werr = schema_attrib->syntax->drsuapi_to_ldb(&syntax_ctx, schema_attrib, &drs, mem_ctx, &new_el);
+	W_ERROR_NOT_OK_RETURN(werr);
+
+	if (new_el.num_values != 1) {
+		return WERR_INTERNAL_ERROR;
+	}
+
+	*dsdb_dn = dsdb_dn_parse(mem_ctx, sam_ctx, &new_el.values[0], schema_attrib->syntax->ldap_oid);
+	if (!*dsdb_dn) {
+		return WERR_INTERNAL_ERROR;
+	}
+
+	return WERR_OK;
+}