merge upstream 3.4.0

git-svn-id: svn://svn.debian.org/svn/pkg-samba/trunk/samba@2936 fc4039ab-9d04-0410-8cac-899223bdd6b0

1 files changed, 328 insertions, 0 deletions

diff --git a/source4/lib/ldb/modules/rdn_name.c b/source4/lib/ldb/modules/rdn_name.c
new file mode 100644
index 0000000000..880678d89d
--- /dev/null
+++ b/source4/lib/ldb/modules/rdn_name.c
@@ -0,0 +1,328 @@
+/* 
+   ldb database library
+
+   Copyright (C) Andrew Bartlet 2005
+   Copyright (C) Simo Sorce     2006-2008
+
+     ** NOTE! The following LGPL license applies to the ldb
+     ** library. This does NOT imply that all of Samba is released
+     ** under the LGPL
+   
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 3 of the License, or (at your option) any later version.
+
+   This library 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with this library; if not, see <http://www.gnu.org/licenses/>.
+*/
+
+/*
+ *  Name: rdb_name
+ *
+ *  Component: ldb rdn name module
+ *
+ *  Description: keep a consistent name attribute on objects manpulations
+ *
+ *  Author: Andrew Bartlet
+ *
+ *  Modifications:
+ *    - made the module async
+ *      Simo Sorce Mar 2006
+ */
+
+#include "ldb_includes.h"
+#include "ldb_module.h"
+
+struct rename_context {
+
+	struct ldb_module *module;
+	struct ldb_request *req;
+
+	struct ldb_reply *ares;
+};
+
+static struct ldb_message_element *rdn_name_find_attribute(const struct ldb_message *msg, const char *name)
+{
+	int i;
+
+	for (i = 0; i < msg->num_elements; i++) {
+		if (ldb_attr_cmp(name, msg->elements[i].name) == 0) {
+			return &msg->elements[i];
+		}
+	}
+
+	return NULL;
+}
+
+static int rdn_name_add_callback(struct ldb_request *req,
+				 struct ldb_reply *ares)
+{
+	struct rename_context *ac;
+
+	ac = talloc_get_type(req->context, struct rename_context);
+
+	if (!ares) {
+		return ldb_module_done(ac->req, NULL, NULL,
+					LDB_ERR_OPERATIONS_ERROR);
+	}
+	if (ares->error != LDB_SUCCESS) {
+		return ldb_module_done(ac->req, ares->controls,
+					ares->response, ares->error);
+	}
+
+	if (ares->type != LDB_REPLY_DONE) {
+		return ldb_module_done(ac->req, NULL, NULL,
+					LDB_ERR_OPERATIONS_ERROR);
+	}
+
+	return ldb_module_done(ac->req, ares->controls,
+					ares->response, LDB_SUCCESS);
+}
+
+static int rdn_name_add(struct ldb_module *module, struct ldb_request *req)
+{
+	struct ldb_context *ldb;
+	struct ldb_request *down_req;
+	struct rename_context *ac;
+	struct ldb_message *msg;
+	struct ldb_message_element *attribute;
+	const struct ldb_schema_attribute *a;
+	const char *rdn_name;
+	struct ldb_val rdn_val;
+	int i, ret;
+
+	ldb = ldb_module_get_ctx(module);
+	ldb_debug(ldb, LDB_DEBUG_TRACE, "rdn_name_add_record\n");
+
+	/* do not manipulate our control entries */
+	if (ldb_dn_is_special(req->op.add.message->dn)) {
+		return ldb_next_request(module, req);
+	}
+
+	ac = talloc_zero(req, struct rename_context);
+	if (ac == NULL) {
+		return LDB_ERR_OPERATIONS_ERROR;
+	}
+
+	ac->module = module;
+	ac->req = req;
+
+	msg = ldb_msg_copy_shallow(req, req->op.add.message);
+	if (msg == NULL) {
+		return LDB_ERR_OPERATIONS_ERROR;
+	}
+
+	rdn_name = ldb_dn_get_rdn_name(msg->dn);
+	if (rdn_name == NULL) {
+		talloc_free(ac);
+		return LDB_ERR_OPERATIONS_ERROR;
+	}
+	
+	rdn_val = ldb_val_dup(msg, ldb_dn_get_rdn_val(msg->dn));
+	
+	/* Perhaps someone above us tried to set this? */
+	if ((attribute = rdn_name_find_attribute(msg, "name")) != NULL ) {
+		attribute->num_values = 0;
+	}
+
+	if (ldb_msg_add_value(msg, "name", &rdn_val, NULL) != 0) {
+		talloc_free(ac);
+		return LDB_ERR_OPERATIONS_ERROR;
+	}
+
+	attribute = rdn_name_find_attribute(msg, rdn_name);
+
+	if (!attribute) {
+		if (ldb_msg_add_value(msg, rdn_name, &rdn_val, NULL) != 0) {
+			talloc_free(ac);
+			return LDB_ERR_OPERATIONS_ERROR;
+		}
+	} else {
+		a = ldb_schema_attribute_by_name(ldb, rdn_name);
+
+		for (i = 0; i < attribute->num_values; i++) {
+			ret = a->syntax->comparison_fn(ldb, msg,
+					&rdn_val, &attribute->values[i]);
+			if (ret == 0) {
+				/* overwrite so it matches in case */
+				attribute->values[i] = rdn_val;
+				break;
+			}
+		}
+		if (i == attribute->num_values) {
+			ldb_debug_set(ldb, LDB_DEBUG_FATAL, 
+				      "RDN mismatch on %s: %s (%s)", 
+				      ldb_dn_get_linearized(msg->dn), rdn_name, rdn_val.data);
+			talloc_free(ac);
+			/* Match AD's error here */
+			return LDB_ERR_INVALID_DN_SYNTAX;
+		}
+	}
+
+	ret = ldb_build_add_req(&down_req, ldb, req,
+				msg,
+				req->controls,
+				ac, rdn_name_add_callback,
+				req);
+	if (ret != LDB_SUCCESS) {
+		return ret;
+	}
+
+	talloc_steal(down_req, msg);
+
+	/* go on with the call chain */
+	return ldb_next_request(module, down_req);
+}
+
+static int rdn_modify_callback(struct ldb_request *req, struct ldb_reply *ares)
+{
+	struct rename_context *ac;
+
+	ac = talloc_get_type(req->context, struct rename_context);
+
+	if (!ares) {
+		return ldb_module_done(ac->req, NULL, NULL,
+					LDB_ERR_OPERATIONS_ERROR);
+	}
+	if (ares->error != LDB_SUCCESS) {
+		return ldb_module_done(ac->req, ares->controls,
+					ares->response, ares->error);
+	}
+
+	/* the only supported reply right now is a LDB_REPLY_DONE */
+	if (ares->type != LDB_REPLY_DONE) {
+		return ldb_module_done(ac->req, NULL, NULL,
+					LDB_ERR_OPERATIONS_ERROR);
+	}
+
+	/* send saved controls eventually */
+	return ldb_module_done(ac->req, ac->ares->controls,
+				ac->ares->response, LDB_SUCCESS);
+}
+
+static int rdn_rename_callback(struct ldb_request *req, struct ldb_reply *ares)
+{
+	struct ldb_context *ldb;
+	struct rename_context *ac;
+	struct ldb_request *mod_req;
+	const char *rdn_name;
+	struct ldb_val rdn_val;
+	struct ldb_message *msg;
+	int ret;
+
+	ac = talloc_get_type(req->context, struct rename_context);
+	ldb = ldb_module_get_ctx(ac->module);
+
+	if (!ares) {
+		goto error;
+	}
+	if (ares->error != LDB_SUCCESS) {
+		return ldb_module_done(ac->req, ares->controls,
+					ares->response, ares->error);
+	}
+
+	/* the only supported reply right now is a LDB_REPLY_DONE */
+	if (ares->type != LDB_REPLY_DONE) {
+		goto error;
+	}
+
+	/* save reply for caller */
+	ac->ares = talloc_steal(ac, ares);
+
+	msg = ldb_msg_new(ac);
+	if (msg == NULL) {
+		goto error;
+	}
+	msg->dn = ldb_dn_copy(msg, ac->req->op.rename.newdn);
+	if (msg->dn == NULL) {
+		goto error;
+	}
+	rdn_name = ldb_dn_get_rdn_name(ac->req->op.rename.newdn);
+	if (rdn_name == NULL) {
+		goto error;
+	}
+	
+	rdn_val = ldb_val_dup(msg, ldb_dn_get_rdn_val(ac->req->op.rename.newdn));
+	
+	if (ldb_msg_add_empty(msg, rdn_name, LDB_FLAG_MOD_REPLACE, NULL) != 0) {
+		goto error;
+	}
+	if (ldb_msg_add_value(msg, rdn_name, &rdn_val, NULL) != 0) {
+		goto error;
+	}
+	if (ldb_msg_add_empty(msg, "name", LDB_FLAG_MOD_REPLACE, NULL) != 0) {
+		goto error;
+	}
+	if (ldb_msg_add_value(msg, "name", &rdn_val, NULL) != 0) {
+		goto error;
+	}
+
+	ret = ldb_build_mod_req(&mod_req, ldb,
+				ac, msg, NULL,
+				ac, rdn_modify_callback,
+				req);
+	if (ret != LDB_SUCCESS) {
+		return ldb_module_done(ac->req, NULL, NULL, ret);
+	}
+	talloc_steal(mod_req, msg);
+
+	/* do the mod call */
+	return ldb_request(ldb, mod_req);
+
+error:
+	return ldb_module_done(ac->req, NULL, NULL,
+						LDB_ERR_OPERATIONS_ERROR);
+}
+
+static int rdn_name_rename(struct ldb_module *module, struct ldb_request *req)
+{
+	struct ldb_context *ldb;
+	struct rename_context *ac;
+	struct ldb_request *down_req;
+	int ret;
+
+	ldb = ldb_module_get_ctx(module);
+	ldb_debug(ldb, LDB_DEBUG_TRACE, "rdn_name_rename\n");
+
+	/* do not manipulate our control entries */
+	if (ldb_dn_is_special(req->op.rename.newdn)) {
+		return ldb_next_request(module, req);
+	}
+
+	ac = talloc_zero(req, struct rename_context);
+	if (ac == NULL) {
+		return LDB_ERR_OPERATIONS_ERROR;
+	}
+
+	ac->module = module;
+	ac->req = req;
+
+	ret = ldb_build_rename_req(&down_req,
+				   ldb,
+				   ac,
+				   req->op.rename.olddn,
+				   req->op.rename.newdn,
+				   req->controls,
+				   ac,
+				   rdn_rename_callback,
+				   req);
+
+	if (ret != LDB_SUCCESS) {
+		return LDB_ERR_OPERATIONS_ERROR;
+	}
+
+	/* rename first, modify "name" if rename is ok */
+	return ldb_next_request(module, down_req);
+}
+
+const struct ldb_module_ops ldb_rdn_name_module_ops = {
+	.name              = "rdn_name",
+	.add               = rdn_name_add,
+	.rename            = rdn_name_rename,
+};