/*
ldb database library
- Copyright (C) Simo Sorce 2006
- Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005-2007
+ Copyright (C) Simo Sorce 2006-2008
+ Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005-2009
+ Copyright (C) Matthias Dieter Wallnöfer 2010
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
/*
* Name: ldb
*
- * Component: objectClass sorting module
+ * Component: objectClass sorting and constraint checking module
*
* Description:
* - sort the objectClass attribute into the class
- * hierarchy,
- * - fix DNs and attributes into 'standard' case
- * - Add objectCategory and ntSecurityDescriptor defaults
+ * hierarchy and perform constraint checks (correct RDN name,
+ * valid parent),
+ * - fix DNs into 'standard' case
+ * - Add objectCategory and some other attribute defaults
*
* Author: Andrew Bartlett
*/
#include "includes.h"
-#include "ldb/include/ldb.h"
-#include "ldb/include/ldb_errors.h"
-#include "ldb/include/ldb_private.h"
+#include "ldb_module.h"
+#include "util/dlinklist.h"
#include "dsdb/samdb/samdb.h"
-#include "lib/util/dlinklist.h"
#include "librpc/ndr/libndr.h"
#include "librpc/gen_ndr/ndr_security.h"
#include "libcli/security/security.h"
#include "auth/auth.h"
#include "param/param.h"
+#include "../libds/common/flags.h"
+#include "util.h"
struct oc_context {
- enum oc_step {OC_DO_REQ, OC_SEARCH_SELF, OC_DO_MOD,
- OC_SEARCH_ADD_PARENT, OC_DO_ADD,
- OC_SEARCH_RENAME_PARENT, OC_DO_RENAME} step;
-
struct ldb_module *module;
- struct ldb_request *orig_req;
-
- struct ldb_request *down_req;
+ struct ldb_request *req;
+ const struct dsdb_schema *schema;
- struct ldb_request *search_req;
struct ldb_reply *search_res;
+ struct ldb_reply *search_res2;
- struct ldb_request *add_req;
- struct ldb_request *mod_req;
- struct ldb_request *rename_req;
+ int (*step_fn)(struct oc_context *);
};
struct class_list {
const struct dsdb_class *objectclass;
};
-static int objectclass_do_add(struct ldb_handle *h);
-
-static struct ldb_handle *oc_init_handle(struct ldb_request *req, struct ldb_module *module)
+static struct oc_context *oc_init_context(struct ldb_module *module,
+ struct ldb_request *req)
{
+ struct ldb_context *ldb;
struct oc_context *ac;
- struct ldb_handle *h;
-
- h = talloc_zero(req, struct ldb_handle);
- if (h == NULL) {
- ldb_set_errstring(module->ldb, "Out of Memory");
- return NULL;
- }
- h->module = module;
+ ldb = ldb_module_get_ctx(module);
- ac = talloc_zero(h, struct oc_context);
+ ac = talloc_zero(req, struct oc_context);
if (ac == NULL) {
- ldb_set_errstring(module->ldb, "Out of Memory");
- talloc_free(h);
+ ldb_oom(ldb);
return NULL;
}
- h->private_data = (void *)ac;
-
- h->state = LDB_ASYNC_INIT;
- h->status = LDB_SUCCESS;
-
ac->module = module;
- ac->orig_req = req;
+ ac->req = req;
+ ac->schema = dsdb_get_schema(ldb, ac);
- return h;
+ return ac;
}
+static int objectclass_do_add(struct oc_context *ac);
+
/* Sort objectClasses into correct order, and validate that all
* objectClasses specified actually exist in the schema
*/
static int objectclass_sort(struct ldb_module *module,
const struct dsdb_schema *schema,
- struct ldb_message *msg, /* so that when we create new elements, we put it on the right parent */
TALLOC_CTX *mem_ctx,
struct ldb_message_element *objectclass_element,
struct class_list **sorted_out)
{
- int i;
- int layer;
- struct class_list *sorted = NULL, *parent_class = NULL,
- *subclass = NULL, *unsorted = NULL, *current, *poss_subclass, *poss_parent, *new_parent;
+ struct ldb_context *ldb;
+ unsigned int i, lowest;
+ struct class_list *unsorted = NULL, *sorted = NULL, *current = NULL, *poss_parent = NULL, *new_parent = NULL, *current_lowest = NULL;
+
+ ldb = ldb_module_get_ctx(module);
+
/* DESIGN:
*
* We work on 4 different 'bins' (implemented here as linked lists):
for (i=0; i < objectclass_element->num_values; i++) {
current = talloc(mem_ctx, struct class_list);
if (!current) {
- ldb_set_errstring(module->ldb, "objectclass: out of memory allocating objectclass list");
- talloc_free(mem_ctx);
+ ldb_oom(ldb);
return LDB_ERR_OPERATIONS_ERROR;
}
- current->objectclass = dsdb_class_by_lDAPDisplayName(schema, (const char *)objectclass_element->values[i].data);
+ current->objectclass = dsdb_class_by_lDAPDisplayName_ldb_val(schema, &objectclass_element->values[i]);
if (!current->objectclass) {
- ldb_asprintf_errstring(module->ldb, "objectclass %s is not a valid objectClass in schema", (const char *)objectclass_element->values[i].data);
- return LDB_ERR_OBJECT_CLASS_VIOLATION;
+ ldb_asprintf_errstring(ldb, "objectclass %.*s is not a valid objectClass in schema",
+ (int)objectclass_element->values[i].length, (const char *)objectclass_element->values[i].data);
+ /* This looks weird, but windows apparently returns this for invalid objectClass values */
+ return LDB_ERR_NO_SUCH_ATTRIBUTE;
+ } else if (current->objectclass->isDefunct) {
+ ldb_asprintf_errstring(ldb, "objectclass %.*s marked as isDefunct objectClass in schema - not valid for new objects",
+ (int)objectclass_element->values[i].length, (const char *)objectclass_element->values[i].data);
+ /* This looks weird, but windows apparently returns this for invalid objectClass values */
+ return LDB_ERR_NO_SUCH_ATTRIBUTE;
}
- /* this is the root of the tree. We will start
- * looking for subclasses from here */
- if (ldb_attr_cmp("top", current->objectclass->lDAPDisplayName) == 0) {
- DLIST_ADD_END(parent_class, current, struct class_list *);
- } else {
+ /* Don't add top to list, we will do that later */
+ if (ldb_attr_cmp("top", current->objectclass->lDAPDisplayName) != 0) {
DLIST_ADD_END(unsorted, current, struct class_list *);
}
}
- if (parent_class == NULL) {
- current = talloc(mem_ctx, struct class_list);
- current->objectclass = dsdb_class_by_lDAPDisplayName(schema, "top");
- DLIST_ADD_END(parent_class, current, struct class_list *);
- }
+ /* Add top here, to prevent duplicates */
+ current = talloc(mem_ctx, struct class_list);
+ current->objectclass = dsdb_class_by_lDAPDisplayName(schema, "top");
+ DLIST_ADD_END(sorted, current, struct class_list *);
+
/* For each object: find parent chain */
for (current = unsorted; schema && current; current = current->next) {
DLIST_ADD_END(unsorted, new_parent, struct class_list *);
}
- /* DEBUGGING aid: how many layers are we down now? */
- layer = 0;
- do {
- layer++;
- /* Find all the subclasses of classes in the
- * parent_classes. Push them onto the subclass list */
-
- /* Ensure we don't bother if there are no unsorted entries left */
- for (current = parent_class; schema && unsorted && current; current = current->next) {
- /* Walk the list of possible subclasses in unsorted */
- for (poss_subclass = unsorted; poss_subclass; ) {
- struct class_list *next;
-
- /* Save the next pointer, as the DLIST_ macros will change poss_subclass->next */
- next = poss_subclass->next;
-
- if (ldb_attr_cmp(poss_subclass->objectclass->subClassOf, current->objectclass->lDAPDisplayName) == 0) {
- DLIST_REMOVE(unsorted, poss_subclass);
- DLIST_ADD(subclass, poss_subclass);
-
- break;
- }
- poss_subclass = next;
+ do
+ {
+ lowest = UINT_MAX;
+ current_lowest = NULL;
+ for (current = unsorted; schema && current; current = current->next) {
+ if(current->objectclass->subClass_order < lowest) {
+ current_lowest = current;
+ lowest = current->objectclass->subClass_order;
}
}
- /* Now push the parent_classes as sorted, we are done with
- these. Add to the END of the list by concatenation */
- DLIST_CONCATENATE(sorted, parent_class, struct class_list *);
-
- /* and now find subclasses of these */
- parent_class = subclass;
- subclass = NULL;
+ if(current_lowest != NULL) {
+ DLIST_REMOVE(unsorted,current_lowest);
+ DLIST_ADD_END(sorted,current_lowest, struct class_list *);
+ }
+ } while(unsorted);
- /* If we didn't find any subclasses we will fall out
- * the bottom here */
- } while (parent_class);
if (!unsorted) {
*sorted_out = sorted;
* was no 'top', a conflict in the objectClasses or some other
* schema error?
*/
- ldb_asprintf_errstring(module->ldb, "objectclass %s is not a valid objectClass in objectClass chain", unsorted->objectclass->lDAPDisplayName);
+ ldb_asprintf_errstring(ldb, "objectclass %s is not a valid objectClass in objectClass chain", unsorted->objectclass->lDAPDisplayName);
return LDB_ERR_OBJECT_CLASS_VIOLATION;
}
-static DATA_BLOB *get_sd(struct ldb_module *module, TALLOC_CTX *mem_ctx,
- const struct dsdb_class *objectclass)
+static int get_search_callback(struct ldb_request *req, struct ldb_reply *ares)
{
- enum ndr_err_code ndr_err;
- DATA_BLOB *linear_sd;
- struct auth_session_info *session_info
- = ldb_get_opaque(module->ldb, "sessionInfo");
- struct security_descriptor *sd
- = sddl_decode(mem_ctx,
- objectclass->defaultSecurityDescriptor,
- samdb_domain_sid(module->ldb));
-
- if (!session_info || !session_info->security_token) {
- return NULL;
+ struct ldb_context *ldb;
+ struct oc_context *ac;
+ int ret;
+
+ ac = talloc_get_type(req->context, struct oc_context);
+ ldb = ldb_module_get_ctx(ac->module);
+
+ if (!ares) {
+ return ldb_module_done(ac->req, NULL, NULL,
+ LDB_ERR_OPERATIONS_ERROR);
}
-
- sd->owner_sid = session_info->security_token->user_sid;
- sd->group_sid = session_info->security_token->group_sid;
-
- linear_sd = talloc(mem_ctx, DATA_BLOB);
- if (!linear_sd) {
- return NULL;
+ if (ares->error != LDB_SUCCESS &&
+ ares->error != LDB_ERR_NO_SUCH_OBJECT) {
+ return ldb_module_done(ac->req, ares->controls,
+ ares->response, ares->error);
}
- ndr_err = ndr_push_struct_blob(linear_sd, mem_ctx,
- lp_iconv_convenience(ldb_get_opaque(module->ldb, "loadparm")),
- sd,
- (ndr_push_flags_fn_t)ndr_push_security_descriptor);
- if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
- return NULL;
+ ldb_reset_err_string(ldb);
+
+ switch (ares->type) {
+ case LDB_REPLY_ENTRY:
+ if (ac->search_res != NULL) {
+ ldb_set_errstring(ldb, "Too many results");
+ talloc_free(ares);
+ return ldb_module_done(ac->req, NULL, NULL,
+ LDB_ERR_OPERATIONS_ERROR);
+ }
+
+ ac->search_res = talloc_steal(ac, ares);
+ break;
+
+ case LDB_REPLY_REFERRAL:
+ /* ignore */
+ talloc_free(ares);
+ break;
+
+ case LDB_REPLY_DONE:
+ talloc_free(ares);
+ ret = ac->step_fn(ac);
+ if (ret != LDB_SUCCESS) {
+ return ldb_module_done(ac->req, NULL, NULL, ret);
+ }
+ break;
}
-
- return linear_sd;
+ return LDB_SUCCESS;
}
-static int get_search_callback(struct ldb_context *ldb, void *context, struct ldb_reply *ares)
+static int oc_op_callback(struct ldb_request *req, struct ldb_reply *ares)
{
struct oc_context *ac;
- ac = talloc_get_type(context, struct oc_context);
+ ac = talloc_get_type(req->context, struct oc_context);
- /* we are interested only in the single reply (base search) we receive here */
- if (ares->type == LDB_REPLY_ENTRY) {
- if (ac->search_res != NULL) {
- ldb_set_errstring(ldb, "Too many results");
- talloc_free(ares);
- return LDB_ERR_OPERATIONS_ERROR;
- }
+ if (!ares) {
+ return ldb_module_done(ac->req, NULL, NULL,
+ LDB_ERR_OPERATIONS_ERROR);
+ }
- ac->search_res = talloc_move(ac, &ares);
- } else {
+ if (ares->type == LDB_REPLY_REFERRAL) {
+ return ldb_module_send_referral(ac->req, ares->referral);
+ }
+
+ if (ares->error != LDB_SUCCESS) {
+ return ldb_module_done(ac->req, ares->controls,
+ ares->response, ares->error);
+ }
+
+ if (ares->type != LDB_REPLY_DONE) {
talloc_free(ares);
+ return ldb_module_done(ac->req, NULL, NULL,
+ LDB_ERR_OPERATIONS_ERROR);
}
- return LDB_SUCCESS;
+ return ldb_module_done(ac->req, ares->controls,
+ ares->response, ares->error);
}
/* Fix up the DN to be in the standard form, taking particular care to match the parent DN
struct ldb_dn **fixed_dn)
{
char *upper_rdn_attr;
+ const struct ldb_val *rdn_val;
+
/* Fix up the DN to be in the standard form, taking particular care to match the parent DN */
*fixed_dn = ldb_dn_copy(mem_ctx, parent_dn);
if (!upper_rdn_attr) {
return LDB_ERR_OPERATIONS_ERROR;
}
-
+
/* Create a new child */
if (ldb_dn_add_child_fmt(*fixed_dn, "X=X") == false) {
return LDB_ERR_OPERATIONS_ERROR;
}
- /* And replace it with CN=foo (we need the attribute in upper case */
- return ldb_dn_set_component(*fixed_dn, 0, upper_rdn_attr,
- *ldb_dn_get_rdn_val(newdn));
-}
-/* Fix all attribute names to be in the correct case, and check they are all valid per the schema */
-static int fix_attributes(struct ldb_context *ldb, const struct dsdb_schema *schema, struct ldb_message *msg)
-{
- int i;
- for (i=0; i < msg->num_elements; i++) {
- const struct dsdb_attribute *attribute = dsdb_attribute_by_lDAPDisplayName(schema, msg->elements[i].name);
- if (!attribute) {
- ldb_asprintf_errstring(ldb, "attribute %s is not a valid attribute in schema", msg->elements[i].name);
- return LDB_ERR_UNDEFINED_ATTRIBUTE_TYPE;
- }
- msg->elements[i].name = attribute->lDAPDisplayName;
+ rdn_val = ldb_dn_get_rdn_val(newdn);
+
+#if 0
+ /* the rules for rDN length constraints are more complex than
+ this. Until we understand them we need to leave this
+ constraint out. Otherwise we break replication, as windows
+ does sometimes send us rDNs longer than 64 */
+ if (!rdn_val || rdn_val->length > 64) {
+ DEBUG(2,(__location__ ": WARNING: rDN longer than 64 limit for '%s'\n", ldb_dn_get_linearized(newdn)));
}
+#endif
- return LDB_SUCCESS;
+
+ /* And replace it with CN=foo (we need the attribute in upper case */
+ return ldb_dn_set_component(*fixed_dn, 0, upper_rdn_attr, *rdn_val);
}
-static int objectclass_add(struct ldb_module *module, struct ldb_request *req)
-{
- static const char * const attrs[] = { NULL };
+static int objectclass_do_add(struct oc_context *ac);
- struct ldb_handle *h;
+static int objectclass_add(struct ldb_module *module, struct ldb_request *req)
+{
+ struct ldb_context *ldb;
+ struct ldb_request *search_req;
struct oc_context *ac;
struct ldb_dn *parent_dn;
int ret;
-
- ldb_debug(module->ldb, LDB_DEBUG_TRACE, "objectclass_add\n");
+ static const char * const parent_attrs[] = { "objectGUID", "objectClass", NULL };
+
+ ldb = ldb_module_get_ctx(module);
+
+ ldb_debug(ldb, LDB_DEBUG_TRACE, "objectclass_add\n");
/* do not manipulate our control entries */
if (ldb_dn_is_special(req->op.add.message->dn)) {
return ldb_next_request(module, req);
}
- /* Need to object to this, but cn=rootdse doesn't hae an objectClass... */
+ /* the objectClass must be specified on add */
if (ldb_msg_find_element(req->op.add.message,
"objectClass") == NULL) {
- return ldb_next_request(module, req);
+ return LDB_ERR_OBJECT_CLASS_VIOLATION;
}
- h = oc_init_handle(req, module);
- if (!h) {
+ ac = oc_init_context(module, req);
+ if (ac == NULL) {
return LDB_ERR_OPERATIONS_ERROR;
}
- ac = talloc_get_type(h->private_data, struct oc_context);
-
- /* return or own handle to deal with this call */
- req->handle = h;
/* If there isn't a parent, just go on to the add processing */
- if (ldb_dn_get_comp_num(ac->orig_req->op.add.message->dn) == 1) {
- return objectclass_do_add(h);
+ if (ldb_dn_get_comp_num(ac->req->op.add.message->dn) == 1) {
+ return objectclass_do_add(ac);
}
- parent_dn = ldb_dn_get_parent(ac, ac->orig_req->op.add.message->dn);
+ /* get copy of parent DN */
+ parent_dn = ldb_dn_get_parent(ac, ac->req->op.add.message->dn);
if (parent_dn == NULL) {
- ldb_oom(module->ldb);
+ ldb_oom(ldb);
return LDB_ERR_OPERATIONS_ERROR;
}
- ret = ldb_build_search_req(&ac->search_req, module->ldb,
+ ret = ldb_build_search_req(&search_req, ldb,
ac, parent_dn, LDB_SCOPE_BASE,
- "(objectClass=*)",
- attrs, NULL,
- ac, get_search_callback);
+ "(objectClass=*)", parent_attrs,
+ NULL,
+ ac, get_search_callback,
+ req);
if (ret != LDB_SUCCESS) {
return ret;
}
- talloc_steal(ac->search_req, parent_dn);
-
- ldb_set_timeout_from_prev_req(ac->module->ldb, ac->orig_req, ac->search_req);
+ ac->step_fn = objectclass_do_add;
- ac->step = OC_SEARCH_ADD_PARENT;
-
- return ldb_next_request(ac->module, ac->search_req);
+ return ldb_next_request(ac->module, search_req);
}
-static int objectclass_do_add(struct ldb_handle *h)
+static int objectclass_do_add(struct oc_context *ac)
{
- const struct dsdb_schema *schema;
- struct oc_context *ac;
- struct ldb_message_element *objectclass_element;
+ struct ldb_context *ldb;
+ struct ldb_request *add_req;
+ char *value;
+ struct ldb_message_element *objectclass_element, *el;
struct ldb_message *msg;
TALLOC_CTX *mem_ctx;
struct class_list *sorted, *current;
int ret;
-
- ac = talloc_get_type(h->private_data, struct oc_context);
- schema = dsdb_get_schema(ac->module->ldb);
+ const struct dsdb_class *objectclass;
+ int32_t systemFlags = 0;
+ const char *rdn_name = NULL;
+
+ ldb = ldb_module_get_ctx(ac->module);
mem_ctx = talloc_new(ac);
if (mem_ctx == NULL) {
+ ldb_oom(ldb);
return LDB_ERR_OPERATIONS_ERROR;
}
- ac->add_req = talloc(ac, struct ldb_request);
- if (ac->add_req == NULL) {
- talloc_free(mem_ctx);
- return LDB_ERR_OPERATIONS_ERROR;
- }
-
- *ac->add_req = *ac->orig_req;
-
- ac->add_req->op.add.message = msg = ldb_msg_copy_shallow(ac->add_req, ac->orig_req->op.add.message);
+ msg = ldb_msg_copy_shallow(ac, ac->req->op.add.message);
- ldb_set_timeout_from_prev_req(ac->module->ldb, ac->orig_req, ac->add_req);
-
- /* Check we have a valid parent */
+ /* Check if we have a valid parent - this check is needed since
+ * we don't get a LDB_ERR_NO_SUCH_OBJECT error. */
if (ac->search_res == NULL) {
- if (ldb_dn_compare(ldb_get_root_basedn(ac->module->ldb), ac->orig_req->op.add.message->dn) == 0) {
+ if (ldb_dn_compare(ldb_get_root_basedn(ldb), msg->dn) == 0) {
/* Allow the tree to be started */
/* but don't keep any error string, it's meaningless */
- ldb_set_errstring(ac->module->ldb, NULL);
+ ldb_set_errstring(ldb, NULL);
} else {
- ldb_asprintf_errstring(ac->module->ldb, "objectclass: Cannot add %s, parent does not exist!",
- ldb_dn_get_linearized(ac->orig_req->op.add.message->dn));
- return LDB_ERR_UNWILLING_TO_PERFORM;
+ ldb_asprintf_errstring(ldb, "objectclass: Cannot add %s, parent does not exist!",
+ ldb_dn_get_linearized(msg->dn));
+ talloc_free(mem_ctx);
+ return LDB_ERR_NO_SUCH_OBJECT;
}
} else {
-
- /* Fix up the DN to be in the standard form, taking particular care to match the parent DN */
+
+ /* Fix up the DN to be in the standard form, taking
+ * particular care to match the parent DN */
ret = fix_dn(msg,
- ac->orig_req->op.add.message->dn,
+ ac->req->op.add.message->dn,
ac->search_res->message->dn,
&msg->dn);
if (ret != LDB_SUCCESS) {
- ldb_asprintf_errstring(ac->module->ldb, "Could not munge DN %s into normal form",
- ldb_dn_get_linearized(ac->orig_req->op.add.message->dn));
- return ret;
- }
-
- /* TODO: Check this is a valid child to this parent,
- * by reading the allowedChildClasses and
- * allowedChildClasssesEffective attributes */
-
- }
-
- if (schema) {
- ret = fix_attributes(ac->module->ldb, schema, msg);
- if (ret != LDB_SUCCESS) {
+ ldb_asprintf_errstring(ldb, "objectclass: Could not munge DN %s into normal form",
+ ldb_dn_get_linearized(ac->req->op.add.message->dn));
talloc_free(mem_ctx);
return ret;
}
+ }
+ if (ac->schema != NULL) {
/* This is now the objectClass list from the database */
objectclass_element = ldb_msg_find_element(msg, "objectClass");
-
+
if (!objectclass_element) {
/* Where did it go? bail now... */
talloc_free(mem_ctx);
return LDB_ERR_OPERATIONS_ERROR;
}
- ret = objectclass_sort(ac->module, schema, msg, mem_ctx, objectclass_element, &sorted);
+ ret = objectclass_sort(ac->module, ac->schema, mem_ctx,
+ objectclass_element, &sorted);
if (ret != LDB_SUCCESS) {
talloc_free(mem_ctx);
return ret;
talloc_free(mem_ctx);
return ret;
}
-
+
/* We must completely replace the existing objectClass entry,
* because we need it sorted */
-
+
/* Move from the linked list back into an ldb msg */
for (current = sorted; current; current = current->next) {
- ret = ldb_msg_add_string(msg, "objectClass", current->objectclass->lDAPDisplayName);
+ value = talloc_strdup(msg, current->objectclass->lDAPDisplayName);
+ if (value == NULL) {
+ ldb_oom(ldb);
+ talloc_free(mem_ctx);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ ret = ldb_msg_add_string(msg, "objectClass", value);
if (ret != LDB_SUCCESS) {
- ldb_set_errstring(ac->module->ldb,
+ ldb_set_errstring(ldb,
"objectclass: could not re-add sorted "
"objectclass to modify msg");
talloc_free(mem_ctx);
return ret;
}
- /* Last one is the critical one */
- if (!current->next) {
- if (!ldb_msg_find_element(msg, "objectCategory")) {
- ldb_msg_add_string(msg, "objectCategory",
- current->objectclass->defaultObjectCategory);
+ }
+
+ /* Retrive the message again so get_last_structural_class works */
+ objectclass_element = ldb_msg_find_element(msg, "objectClass");
+
+ /* Make sure its valid to add an object of this type */
+ objectclass = get_last_structural_class(ac->schema,
+ objectclass_element);
+ if(objectclass == NULL) {
+ ldb_asprintf_errstring(ldb,
+ "Failed to find a structural class for %s",
+ ldb_dn_get_linearized(msg->dn));
+ return LDB_ERR_UNWILLING_TO_PERFORM;
+ }
+
+ rdn_name = ldb_dn_get_rdn_name(msg->dn);
+ if (objectclass->rDNAttID
+ && ldb_attr_cmp(rdn_name, objectclass->rDNAttID) != 0) {
+ ldb_asprintf_errstring(ldb,
+ "RDN %s is not correct for most specific structural objectclass %s, should be %s",
+ rdn_name, objectclass->lDAPDisplayName, objectclass->rDNAttID);
+ return LDB_ERR_NAMING_VIOLATION;
+ }
+
+ if (ac->search_res && ac->search_res->message) {
+ struct ldb_message_element *oc_el
+ = ldb_msg_find_element(ac->search_res->message, "objectClass");
+
+ bool allowed_class = false;
+ unsigned int i, j;
+ for (i=0; allowed_class == false && oc_el && i < oc_el->num_values; i++) {
+ const struct dsdb_class *sclass;
+
+ sclass = dsdb_class_by_lDAPDisplayName_ldb_val(ac->schema,
+ &oc_el->values[i]);
+ if (!sclass) {
+ /* We don't know this class? what is going on? */
+ continue;
}
- if (!ldb_msg_find_element(msg, "nTSecurityDescriptor")) {
- DATA_BLOB *sd = get_sd(ac->module, mem_ctx, current->objectclass);
- ldb_msg_add_steal_value(msg, "nTSecurityDescriptor", sd);
+ for (j=0; sclass->systemPossibleInferiors && sclass->systemPossibleInferiors[j]; j++) {
+ if (ldb_attr_cmp(objectclass->lDAPDisplayName, sclass->systemPossibleInferiors[j]) == 0) {
+ allowed_class = true;
+ break;
+ }
}
}
+
+ if (!allowed_class) {
+ ldb_asprintf_errstring(ldb, "structural objectClass %s is not a valid child class for %s",
+ objectclass->lDAPDisplayName, ldb_dn_get_linearized(ac->search_res->message->dn));
+ return LDB_ERR_NAMING_VIOLATION;
+ }
+ }
+
+ if (objectclass->systemOnly && !ldb_request_get_control(ac->req, LDB_CONTROL_RELAX_OID)) {
+ ldb_asprintf_errstring(ldb, "objectClass %s is systemOnly, rejecting creation of %s",
+ objectclass->lDAPDisplayName, ldb_dn_get_linearized(msg->dn));
+ return LDB_ERR_UNWILLING_TO_PERFORM;
+ }
+
+ if (!ldb_msg_find_element(msg, "objectCategory")) {
+ struct dsdb_extended_dn_store_format *dn_format = talloc_get_type(ldb_module_get_private(ac->module), struct dsdb_extended_dn_store_format);
+ if (dn_format && dn_format->store_extended_dn_in_ldb == false) {
+ /* Strip off extended components */
+ struct ldb_dn *dn = ldb_dn_new(msg, ldb, objectclass->defaultObjectCategory);
+ value = ldb_dn_alloc_linearized(msg, dn);
+ talloc_free(dn);
+ } else {
+ value = talloc_strdup(msg, objectclass->defaultObjectCategory);
+ }
+ if (value == NULL) {
+ ldb_oom(ldb);
+ talloc_free(mem_ctx);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ ldb_msg_add_string(msg, "objectCategory", value);
+ }
+ if (!ldb_msg_find_element(msg, "showInAdvancedViewOnly") && (objectclass->defaultHidingValue == true)) {
+ ldb_msg_add_string(msg, "showInAdvancedViewOnly",
+ "TRUE");
+ }
+
+ /* There are very special rules for systemFlags, see MS-ADTS 3.1.1.5.2.4 */
+ el = ldb_msg_find_element(msg, "systemFlags");
+
+ systemFlags = ldb_msg_find_attr_as_int(msg, "systemFlags", 0);
+
+ if (el) {
+ /* Only these flags may be set by a client, but we can't tell between a client and our provision at this point */
+ /* systemFlags &= ( SYSTEM_FLAG_CONFIG_ALLOW_RENAME | SYSTEM_FLAG_CONFIG_ALLOW_MOVE | SYSTEM_FLAG_CONFIG_LIMITED_MOVE); */
+ ldb_msg_remove_element(msg, el);
+ }
+
+ /* This flag is only allowed on attributeSchema objects */
+ if (ldb_attr_cmp(objectclass->lDAPDisplayName, "attributeSchema") == 0) {
+ systemFlags &= ~SYSTEM_FLAG_ATTR_IS_RDN;
+ }
+
+ if (ldb_attr_cmp(objectclass->lDAPDisplayName, "server") == 0) {
+ systemFlags |= (int32_t)(SYSTEM_FLAG_DISALLOW_MOVE_ON_DELETE | SYSTEM_FLAG_CONFIG_ALLOW_RENAME | SYSTEM_FLAG_CONFIG_ALLOW_LIMITED_MOVE);
+ } else if (ldb_attr_cmp(objectclass->lDAPDisplayName, "site") == 0
+ || ldb_attr_cmp(objectclass->lDAPDisplayName, "serverContainer") == 0
+ || ldb_attr_cmp(objectclass->lDAPDisplayName, "ntDSDSA") == 0) {
+ systemFlags |= (int32_t)(SYSTEM_FLAG_DISALLOW_MOVE_ON_DELETE);
+
+ } else if (ldb_attr_cmp(objectclass->lDAPDisplayName, "siteLink") == 0
+ || ldb_attr_cmp(objectclass->lDAPDisplayName, "siteLinkBridge") == 0
+ || ldb_attr_cmp(objectclass->lDAPDisplayName, "nTDSConnection") == 0) {
+ systemFlags |= (int32_t)(SYSTEM_FLAG_CONFIG_ALLOW_RENAME);
+ }
+
+ /* TODO: If parent object is site or subnet, also add (SYSTEM_FLAG_CONFIG_ALLOW_RENAME) */
+
+ if (el || systemFlags != 0) {
+ samdb_msg_add_int(ldb, msg, msg, "systemFlags", systemFlags);
}
}
talloc_free(mem_ctx);
- ret = ldb_msg_sanity_check(ac->module->ldb, msg);
+ ret = ldb_msg_sanity_check(ldb, msg);
if (ret != LDB_SUCCESS) {
return ret;
}
- h->state = LDB_ASYNC_INIT;
- h->status = LDB_SUCCESS;
-
- ac->step = OC_DO_ADD;
+ ret = ldb_build_add_req(&add_req, ldb, ac,
+ msg,
+ ac->req->controls,
+ ac, oc_op_callback,
+ ac->req);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
/* perform the add */
- return ldb_next_request(ac->module, ac->add_req);
+ return ldb_next_request(ac->module, add_req);
}
+static int oc_modify_callback(struct ldb_request *req,
+ struct ldb_reply *ares);
+static int objectclass_do_mod(struct oc_context *ac);
+
static int objectclass_modify(struct ldb_module *module, struct ldb_request *req)
{
+ struct ldb_context *ldb = ldb_module_get_ctx(module);
struct ldb_message_element *objectclass_element;
struct ldb_message *msg;
- const struct dsdb_schema *schema = dsdb_get_schema(module->ldb);
+ struct ldb_request *down_req;
+ struct oc_context *ac;
+ bool oc_changes = false;
int ret;
- ldb_debug(module->ldb, LDB_DEBUG_TRACE, "objectclass_modify\n");
+ ldb_debug(ldb, LDB_DEBUG_TRACE, "objectclass_modify\n");
/* do not manipulate our control entries */
if (ldb_dn_is_special(req->op.mod.message->dn)) {
return ldb_next_request(module, req);
}
-
+
+ /* As with the "real" AD we don't accept empty messages */
+ if (req->op.mod.message->num_elements == 0) {
+ ldb_set_errstring(ldb, "objectclass: modify message must have "
+ "elements/attributes!");
+ return LDB_ERR_UNWILLING_TO_PERFORM;
+ }
+
+ ac = oc_init_context(module, req);
+ if (ac == NULL) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
/* Without schema, there isn't much to do here */
- if (!schema) {
+ if (ac->schema == NULL) {
+ talloc_free(ac);
return ldb_next_request(module, req);
}
- objectclass_element = ldb_msg_find_element(req->op.mod.message, "objectClass");
- /* If no part of this touches the objectClass, then we don't
- * need to make any changes. */
+ msg = ldb_msg_copy_shallow(ac, req->op.mod.message);
+ if (msg == NULL) {
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
- /* If the only operation is the deletion of the objectClass
- * then go on with just fixing the attribute case */
- if (!objectclass_element) {
- struct ldb_request *down_req = talloc(req, struct ldb_request);
- if (down_req == NULL) {
- ldb_set_errstring(module->ldb, "Out of memory!");
- return LDB_ERR_OPERATIONS_ERROR;
- }
-
- *down_req = *req; /* copy the request */
-
- down_req->op.mod.message = msg = ldb_msg_copy_shallow(down_req, req->op.mod.message);
-
- if (down_req->op.mod.message == NULL) {
- return LDB_ERR_OPERATIONS_ERROR;
- }
-
- ret = fix_attributes(module->ldb, schema, msg);
- if (ret != LDB_SUCCESS) {
- return ret;
- }
+ /* For now change everything except the objectclasses */
- /* go on with the call chain */
- ret = ldb_next_request(module, down_req);
-
- /* do not free down_req as the call results may be linked to it,
- * it will be freed when the upper level request get freed */
- if (ret == LDB_SUCCESS) {
- req->handle = down_req->handle;
- }
- return ret;
+ objectclass_element = ldb_msg_find_element(msg, "objectClass");
+ if (objectclass_element != NULL) {
+ ldb_msg_remove_attr(msg, "objectClass");
+ oc_changes = true;
}
- switch (objectclass_element->flags & LDB_FLAG_MOD_MASK) {
- case LDB_FLAG_MOD_DELETE:
- if (objectclass_element->num_values == 0) {
- return LDB_ERR_OBJECT_CLASS_MODS_PROHIBITED;
- }
- break;
- case LDB_FLAG_MOD_REPLACE:
- {
- struct ldb_request *down_req;
- struct class_list *sorted, *current;
- TALLOC_CTX *mem_ctx;
- mem_ctx = talloc_new(req);
- if (mem_ctx == NULL) {
- return LDB_ERR_OPERATIONS_ERROR;
- }
-
- /* prepare the first operation */
- down_req = talloc(req, struct ldb_request);
- if (down_req == NULL) {
- ldb_set_errstring(module->ldb, "Out of memory!");
- talloc_free(mem_ctx);
- return LDB_ERR_OPERATIONS_ERROR;
- }
-
- *down_req = *req; /* copy the request */
-
- down_req->op.mod.message = msg = ldb_msg_copy_shallow(down_req, req->op.mod.message);
-
- if (down_req->op.mod.message == NULL) {
- talloc_free(mem_ctx);
- return LDB_ERR_OPERATIONS_ERROR;
- }
-
- ret = fix_attributes(module->ldb, schema, msg);
- if (ret != LDB_SUCCESS) {
- talloc_free(mem_ctx);
- return ret;
- }
+ ret = ldb_build_mod_req(&down_req, ldb, ac,
+ msg,
+ req->controls, ac,
+ oc_changes ? oc_modify_callback : oc_op_callback,
+ req);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
- ret = objectclass_sort(module, schema, msg, mem_ctx, objectclass_element, &sorted);
- if (ret != LDB_SUCCESS) {
- return ret;
- }
+ return ldb_next_request(module, down_req);
+}
- /* We must completely replace the existing objectClass entry,
- * because we need it sorted */
-
- ldb_msg_remove_attr(msg, "objectClass");
- ret = ldb_msg_add_empty(msg, "objectClass", LDB_FLAG_MOD_REPLACE, NULL);
-
- if (ret != LDB_SUCCESS) {
- talloc_free(mem_ctx);
- return ret;
- }
+static int oc_modify_callback(struct ldb_request *req, struct ldb_reply *ares)
+{
+ static const char * const attrs[] = { "objectClass", NULL };
+ struct ldb_context *ldb;
+ struct ldb_request *search_req;
+ struct oc_context *ac;
+ int ret;
- /* Move from the linked list back into an ldb msg */
- for (current = sorted; current; current = current->next) {
- ret = ldb_msg_add_string(msg, "objectClass", current->objectclass->lDAPDisplayName);
- if (ret != LDB_SUCCESS) {
- ldb_set_errstring(module->ldb, "objectclass: could not re-add sorted objectclass to modify msg");
- talloc_free(mem_ctx);
- return ret;
- }
- }
-
- talloc_free(mem_ctx);
+ ac = talloc_get_type(req->context, struct oc_context);
+ ldb = ldb_module_get_ctx(ac->module);
- ret = ldb_msg_sanity_check(module->ldb, msg);
- if (ret != LDB_SUCCESS) {
- talloc_free(mem_ctx);
- return ret;
- }
-
- /* go on with the call chain */
- ret = ldb_next_request(module, down_req);
-
- /* do not free down_req as the call results may be linked to it,
- * it will be freed when the upper level request get freed */
- if (ret == LDB_SUCCESS) {
- req->handle = down_req->handle;
- }
- return ret;
- }
+ if (!ares) {
+ return ldb_module_done(ac->req, NULL, NULL,
+ LDB_ERR_OPERATIONS_ERROR);
}
- /* This isn't the default branch of the switch, but a 'in any
- * other case'. When a delete isn't for all objectClasses for
- * example
- */
- {
- struct ldb_handle *h;
- struct oc_context *ac;
-
- h = oc_init_handle(req, module);
- if (!h) {
- return LDB_ERR_OPERATIONS_ERROR;
- }
- ac = talloc_get_type(h->private_data, struct oc_context);
-
- /* return or own handle to deal with this call */
- req->handle = h;
-
- /* prepare the first operation */
- ac->down_req = talloc(ac, struct ldb_request);
- if (ac->down_req == NULL) {
- ldb_oom(ac->module->ldb);
- return LDB_ERR_OPERATIONS_ERROR;
- }
-
- *(ac->down_req) = *req; /* copy the request */
-
- ac->down_req->op.mod.message = msg = ldb_msg_copy_shallow(ac->down_req, req->op.mod.message);
-
- if (ac->down_req->op.mod.message == NULL) {
- ldb_oom(ac->module->ldb);
- return LDB_ERR_OPERATIONS_ERROR;
- }
-
- ret = fix_attributes(ac->module->ldb, schema, msg);
- if (ret != LDB_SUCCESS) {
- ldb_oom(ac->module->ldb);
- return ret;
- }
-
- ac->down_req->context = NULL;
- ac->down_req->callback = NULL;
- ldb_set_timeout_from_prev_req(module->ldb, req, ac->down_req);
-
- ac->step = OC_DO_REQ;
+ if (ares->type == LDB_REPLY_REFERRAL) {
+ return ldb_module_send_referral(ac->req, ares->referral);
+ }
- return ldb_next_request(module, ac->down_req);
+ if (ares->error != LDB_SUCCESS) {
+ return ldb_module_done(ac->req, ares->controls,
+ ares->response, ares->error);
}
-}
-static int objectclass_search_self(struct ldb_handle *h)
-{
- int ret;
- struct oc_context *ac;
- static const char * const attrs[] = { "objectClass", NULL };
+ if (ares->type != LDB_REPLY_DONE) {
+ talloc_free(ares);
+ return ldb_module_done(ac->req, NULL, NULL,
+ LDB_ERR_OPERATIONS_ERROR);
+ }
- ac = talloc_get_type(h->private_data, struct oc_context);
+ talloc_free(ares);
- ret = ldb_build_search_req(&ac->search_req, ac->module->ldb,
- ac, ac->orig_req->op.mod.message->dn, LDB_SCOPE_BASE,
+ /* this looks up the real existing object for fetching some important
+ * informations (objectclasses) */
+ ret = ldb_build_search_req(&search_req, ldb,
+ ac, ac->req->op.mod.message->dn,
+ LDB_SCOPE_BASE,
"(objectClass=*)",
attrs, NULL,
- ac, get_search_callback);
-
+ ac, get_search_callback,
+ ac->req);
if (ret != LDB_SUCCESS) {
- return ret;
+ return ldb_module_done(ac->req, NULL, NULL, ret);
}
- ldb_set_timeout_from_prev_req(ac->module->ldb, ac->orig_req, ac->search_req);
+ ac->step_fn = objectclass_do_mod;
- ac->step = OC_SEARCH_SELF;
+ ret = ldb_next_request(ac->module, search_req);
+ if (ret != LDB_SUCCESS) {
+ return ldb_module_done(ac->req, NULL, NULL, ret);
+ }
- return ldb_next_request(ac->module, ac->search_req);
+ return LDB_SUCCESS;
}
-static int objectclass_do_mod(struct ldb_handle *h) {
-
- const struct dsdb_schema *schema;
- struct oc_context *ac;
- struct ldb_message_element *objectclass_element;
+static int objectclass_do_mod(struct oc_context *ac)
+{
+ struct ldb_context *ldb;
+ struct ldb_request *mod_req;
+ char *value;
+ struct ldb_message_element *oc_el_entry, *oc_el_change;
+ struct ldb_val *vals;
struct ldb_message *msg;
TALLOC_CTX *mem_ctx;
struct class_list *sorted, *current;
+ const struct dsdb_class *objectclass;
+ unsigned int i, j;
+ bool found, replace = false;
int ret;
-
- ac = talloc_get_type(h->private_data, struct oc_context);
- schema = dsdb_get_schema(ac->module->ldb);
- mem_ctx = talloc_new(ac);
- if (mem_ctx == NULL) {
+ ldb = ldb_module_get_ctx(ac->module);
+
+ /* we should always have a valid entry when we enter here */
+ if (ac->search_res == NULL) {
return LDB_ERR_OPERATIONS_ERROR;
}
- ac->mod_req = talloc(ac, struct ldb_request);
- if (ac->mod_req == NULL) {
- talloc_free(mem_ctx);
+ oc_el_entry = ldb_msg_find_element(ac->search_res->message,
+ "objectClass");
+ if (oc_el_entry == NULL) {
+ /* existing entry without a valid object class? */
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ oc_el_change = ldb_msg_find_element(ac->req->op.mod.message,
+ "objectClass");
+ if (oc_el_change == NULL) {
+ /* we should have an objectclass change operation */
return LDB_ERR_OPERATIONS_ERROR;
}
- ac->mod_req->operation = LDB_MODIFY;
- ac->mod_req->controls = NULL;
- ac->mod_req->context = ac;
- ac->mod_req->callback = NULL;
- ldb_set_timeout_from_prev_req(ac->module->ldb, ac->orig_req, ac->mod_req);
-
/* use a new message structure */
- ac->mod_req->op.mod.message = msg = ldb_msg_new(ac->mod_req);
+ msg = ldb_msg_new(ac);
if (msg == NULL) {
- ldb_set_errstring(ac->module->ldb, "objectclass: could not create new modify msg");
- talloc_free(mem_ctx);
+ ldb_oom(ldb);
return LDB_ERR_OPERATIONS_ERROR;
}
- /* This is now the objectClass list from the database */
- objectclass_element = ldb_msg_find_element(ac->search_res->message,
- "objectClass");
- if (!objectclass_element) {
- /* Where did it go? bail now... */
- talloc_free(mem_ctx);
+ msg->dn = ac->req->op.mod.message->dn;
+
+ mem_ctx = talloc_new(ac);
+ if (mem_ctx == NULL) {
+ ldb_oom(ldb);
return LDB_ERR_OPERATIONS_ERROR;
}
-
- /* modify dn */
- msg->dn = ac->orig_req->op.mod.message->dn;
- ret = objectclass_sort(ac->module, schema, msg, mem_ctx, objectclass_element, &sorted);
- if (ret != LDB_SUCCESS) {
- return ret;
- }
+ switch (oc_el_change->flags & LDB_FLAG_MOD_MASK) {
+ case LDB_FLAG_MOD_ADD:
+ /* Merge the two message elements */
+ for (i = 0; i < oc_el_change->num_values; i++) {
+ for (j = 0; j < oc_el_entry->num_values; j++) {
+ if (strcasecmp((char *)oc_el_change->values[i].data,
+ (char *)oc_el_entry->values[j].data) == 0) {
+ /* we cannot add an already existing object class */
+ talloc_free(mem_ctx);
+ return LDB_ERR_ATTRIBUTE_OR_VALUE_EXISTS;
+ }
+ }
+ /* append the new object class value - code was copied
+ * from "ldb_msg_add_value" */
+ vals = talloc_realloc(oc_el_entry, oc_el_entry->values,
+ struct ldb_val,
+ oc_el_entry->num_values + 1);
+ if (vals == NULL) {
+ ldb_oom(ldb);
+ talloc_free(mem_ctx);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ oc_el_entry->values = vals;
+ oc_el_entry->values[oc_el_entry->num_values] =
+ oc_el_change->values[i];
+ ++(oc_el_entry->num_values);
+ }
- /* We must completely replace the existing objectClass entry.
- * We could do a constrained add/del, but we are meant to be
- * in a transaction... */
+ objectclass = get_last_structural_class(ac->schema,
+ oc_el_change);
+ if (objectclass != NULL) {
+ /* we cannot add a new structural object class */
+ talloc_free(mem_ctx);
+ return LDB_ERR_OBJECT_CLASS_VIOLATION;
+ }
- ret = ldb_msg_add_empty(msg, "objectClass", LDB_FLAG_MOD_REPLACE, NULL);
+ /* Now do the sorting */
+ ret = objectclass_sort(ac->module, ac->schema, mem_ctx,
+ oc_el_entry, &sorted);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(mem_ctx);
+ return ret;
+ }
+
+ break;
+
+ case LDB_FLAG_MOD_REPLACE:
+ /* Do the sorting for the change message element */
+ ret = objectclass_sort(ac->module, ac->schema, mem_ctx,
+ oc_el_change, &sorted);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(mem_ctx);
+ return ret;
+ }
+
+ /* this is a replace */
+ replace = true;
+
+ break;
+
+ case LDB_FLAG_MOD_DELETE:
+ /* get the actual top-most structural objectclass */
+ objectclass = get_last_structural_class(ac->schema,
+ oc_el_entry);
+ if (objectclass == NULL) {
+ talloc_free(mem_ctx);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+
+ /* Merge the two message elements */
+ for (i = 0; i < oc_el_change->num_values; i++) {
+ found = false;
+ for (j = 0; j < oc_el_entry->num_values; j++) {
+ if (strcasecmp((char *)oc_el_change->values[i].data,
+ (char *)oc_el_entry->values[j].data) == 0) {
+ found = true;
+ /* delete the object class value -
+ * code was copied from
+ * "ldb_msg_remove_element" */
+ if (j != oc_el_entry->num_values - 1) {
+ memmove(&oc_el_entry->values[j],
+ &oc_el_entry->values[j+1],
+ ((oc_el_entry->num_values-1) - j)*sizeof(struct ldb_val));
+ }
+ --(oc_el_entry->num_values);
+ break;
+ }
+ }
+ if (!found) {
+ /* we cannot delete a not existing object class */
+ talloc_free(mem_ctx);
+ return LDB_ERR_NO_SUCH_ATTRIBUTE;
+ }
+ }
+
+ /* Make sure that the top-most structural objectclass wasn't
+ * deleted */
+ found = false;
+ for (i = 0; i < oc_el_entry->num_values; i++) {
+ if (strcasecmp(objectclass->lDAPDisplayName,
+ (char *)oc_el_entry->values[i].data) == 0) {
+ found = true; break;
+ }
+ }
+ if (!found) {
+ talloc_free(mem_ctx);
+ return LDB_ERR_OBJECT_CLASS_VIOLATION;
+ }
+
+
+ /* Now do the sorting */
+ ret = objectclass_sort(ac->module, ac->schema, mem_ctx,
+ oc_el_entry, &sorted);
+ if (ret != LDB_SUCCESS) {
+ talloc_free(mem_ctx);
+ return ret;
+ }
+
+ break;
+ }
+
+ ret = ldb_msg_add_empty(msg, "objectClass",
+ LDB_FLAG_MOD_REPLACE, &oc_el_change);
if (ret != LDB_SUCCESS) {
- ldb_set_errstring(ac->module->ldb, "objectclass: could not clear objectclass in modify msg");
+ ldb_oom(ldb);
talloc_free(mem_ctx);
return ret;
}
-
+
/* Move from the linked list back into an ldb msg */
for (current = sorted; current; current = current->next) {
- ret = ldb_msg_add_string(msg, "objectClass", current->objectclass->lDAPDisplayName);
+ value = talloc_strdup(msg,
+ current->objectclass->lDAPDisplayName);
+ if (value == NULL) {
+ ldb_oom(ldb);
+ talloc_free(mem_ctx);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ ret = ldb_msg_add_string(msg, "objectClass", value);
if (ret != LDB_SUCCESS) {
- ldb_set_errstring(ac->module->ldb, "objectclass: could not re-add sorted objectclass to modify msg");
+ ldb_set_errstring(ldb, "objectclass: could not re-add sorted objectclass to modify msg");
talloc_free(mem_ctx);
return ret;
}
}
- ret = ldb_msg_sanity_check(ac->module->ldb, msg);
- if (ret != LDB_SUCCESS) {
- talloc_free(mem_ctx);
- return ret;
+ talloc_free(mem_ctx);
+
+ if (replace) {
+ /* Well, on replace we are nearly done: we have to test if
+ * the change and entry message element are identically. We
+ * can use "ldb_msg_element_compare" since now the specified
+ * objectclasses match for sure in case. */
+ ret = ldb_msg_element_compare(oc_el_entry, oc_el_change);
+ if (ret == 0) {
+ ret = ldb_msg_element_compare(oc_el_change,
+ oc_el_entry);
+ }
+ if (ret == 0) {
+ /* they are the same so we are done in this case */
+ return ldb_module_done(ac->req, NULL, NULL,
+ LDB_SUCCESS);
+ } else {
+ /* they're not exactly the same */
+ return LDB_ERR_OBJECT_CLASS_VIOLATION;
+ }
}
+ /* in the other cases we have the real change left to do */
- h->state = LDB_ASYNC_INIT;
- h->status = LDB_SUCCESS;
+ ret = ldb_msg_sanity_check(ldb, msg);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
- ac->step = OC_DO_MOD;
+ ret = ldb_build_mod_req(&mod_req, ldb, ac,
+ msg,
+ ac->req->controls,
+ ac, oc_op_callback,
+ ac->req);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
- talloc_free(mem_ctx);
- /* perform the search */
- return ldb_next_request(ac->module, ac->mod_req);
+ return ldb_next_request(ac->module, mod_req);
}
+static int objectclass_do_rename(struct oc_context *ac);
+
static int objectclass_rename(struct ldb_module *module, struct ldb_request *req)
{
-
- static const char * const attrs[] = { NULL };
-
- struct ldb_handle *h;
+ static const char * const attrs[] = { "objectClass", NULL };
+ struct ldb_context *ldb;
+ struct ldb_request *search_req;
struct oc_context *ac;
struct ldb_dn *parent_dn;
int ret;
-
- ldb_debug(module->ldb, LDB_DEBUG_TRACE, "objectclass_rename\n");
- if (ldb_dn_is_special(req->op.rename.newdn)) { /* do not manipulate our control entries */
+ ldb = ldb_module_get_ctx(module);
+
+ ldb_debug(ldb, LDB_DEBUG_TRACE, "objectclass_rename\n");
+
+ /* do not manipulate our control entries */
+ if (ldb_dn_is_special(req->op.rename.newdn)) {
return ldb_next_request(module, req);
}
-
- /* Firstly ensure we are not trying to rename it to be a child of itself */
- if ((ldb_dn_compare_base(req->op.rename.olddn, req->op.rename.newdn) == 0)
- && (ldb_dn_compare(req->op.rename.olddn, req->op.rename.newdn) != 0)) {
- ldb_asprintf_errstring(module->ldb, "Cannot rename %s to be a child of itself",
- ldb_dn_get_linearized(req->op.rename.olddn));
- return LDB_ERR_UNWILLING_TO_PERFORM;
- }
- h = oc_init_handle(req, module);
- if (!h) {
+ ac = oc_init_context(module, req);
+ if (ac == NULL) {
return LDB_ERR_OPERATIONS_ERROR;
}
- ac = talloc_get_type(h->private_data, struct oc_context);
-
- /* return or own handle to deal with this call */
- req->handle = h;
- parent_dn = ldb_dn_get_parent(ac, ac->orig_req->op.rename.newdn);
+ parent_dn = ldb_dn_get_parent(ac, req->op.rename.newdn);
if (parent_dn == NULL) {
- ldb_oom(module->ldb);
+ ldb_oom(ldb);
return LDB_ERR_OPERATIONS_ERROR;
}
- ret = ldb_build_search_req(&ac->search_req, module->ldb,
+
+ /* this looks up the parent object for fetching some important
+ * informations (objectclasses, DN normalisation...) */
+ ret = ldb_build_search_req(&search_req, ldb,
ac, parent_dn, LDB_SCOPE_BASE,
"(objectClass=*)",
- attrs, NULL,
- ac, get_search_callback);
+ attrs, NULL,
+ ac, get_search_callback,
+ req);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+
+ /* we have to add the show deleted control, as otherwise DRS
+ deletes will be refused as we will think the target parent
+ does not exist */
+ ret = ldb_request_add_control(search_req, LDB_CONTROL_SHOW_DELETED_OID, false, NULL);
+
if (ret != LDB_SUCCESS) {
return ret;
}
- talloc_steal(ac->search_req, parent_dn);
- ldb_set_timeout_from_prev_req(ac->module->ldb, ac->orig_req, ac->search_req);
- ac->step = OC_SEARCH_RENAME_PARENT;
+ ac->step_fn = objectclass_do_rename;
- return ldb_next_request(ac->module, ac->search_req);
+ return ldb_next_request(ac->module, search_req);
}
-static int objectclass_do_rename(struct ldb_handle *h)
+static int objectclass_do_rename2(struct oc_context *ac);
+
+static int objectclass_do_rename(struct oc_context *ac)
{
- struct oc_context *ac;
+ static const char * const attrs[] = { "objectClass", NULL };
+ struct ldb_context *ldb;
+ struct ldb_request *search_req;
int ret;
-
- ac = talloc_get_type(h->private_data, struct oc_context);
-
- ac->rename_req = talloc(ac, struct ldb_request);
- if (ac->rename_req == NULL) {
- return LDB_ERR_OPERATIONS_ERROR;
- }
- *ac->rename_req = *ac->orig_req;
+ ldb = ldb_module_get_ctx(ac->module);
- ldb_set_timeout_from_prev_req(ac->module->ldb, ac->orig_req, ac->rename_req);
-
- /* Check we have a valid parent */
+ /* Check if we have a valid parent - this check is needed since
+ * we don't get a LDB_ERR_NO_SUCH_OBJECT error. */
if (ac->search_res == NULL) {
- ldb_asprintf_errstring(ac->module->ldb, "objectclass: Cannot rename %s, parent does not exist!",
- ldb_dn_get_linearized(ac->orig_req->op.rename.newdn));
- return LDB_ERR_UNWILLING_TO_PERFORM;
+ ldb_asprintf_errstring(ldb, "objectclass: Cannot rename %s, parent does not exist!",
+ ldb_dn_get_linearized(ac->req->op.rename.newdn));
+ return LDB_ERR_OTHER;
}
-
- /* Fix up the DN to be in the standard form, taking particular care to match the parent DN */
- ret = fix_dn(ac->rename_req,
- ac->orig_req->op.rename.newdn,
- ac->search_res->message->dn,
- &ac->rename_req->op.rename.newdn);
+ /* now assign "search_res2" to the parent entry to have "search_res"
+ * free for another lookup */
+ ac->search_res2 = ac->search_res;
+ ac->search_res = NULL;
+
+ /* this looks up the real existing object for fetching some important
+ * informations (objectclasses) */
+ ret = ldb_build_search_req(&search_req, ldb,
+ ac, ac->req->op.rename.olddn,
+ LDB_SCOPE_BASE,
+ "(objectClass=*)",
+ attrs, NULL,
+ ac, get_search_callback,
+ ac->req);
if (ret != LDB_SUCCESS) {
return ret;
}
- /* TODO: Check this is a valid child to this parent,
- * by reading the allowedChildClasses and
- * allowedChildClasssesEffective attributes */
-
- h->state = LDB_ASYNC_INIT;
- h->status = LDB_SUCCESS;
+ ac->step_fn = objectclass_do_rename2;
- ac->step = OC_DO_RENAME;
-
- /* perform the rename */
- return ldb_next_request(ac->module, ac->rename_req);
+ return ldb_next_request(ac->module, search_req);
}
-static int oc_wait(struct ldb_handle *handle) {
- struct oc_context *ac;
+static int objectclass_do_rename2(struct oc_context *ac)
+{
+ struct ldb_context *ldb;
+ struct ldb_request *rename_req;
+ struct ldb_dn *fixed_dn;
int ret;
-
- if (!handle || !handle->private_data) {
- return LDB_ERR_OPERATIONS_ERROR;
- }
-
- if (handle->state == LDB_ASYNC_DONE) {
- return handle->status;
- }
-
- handle->state = LDB_ASYNC_PENDING;
- handle->status = LDB_SUCCESS;
-
- ac = talloc_get_type(handle->private_data, struct oc_context);
-
- switch (ac->step) {
- case OC_DO_REQ:
- ret = ldb_wait(ac->down_req->handle, LDB_WAIT_NONE);
- if (ret != LDB_SUCCESS) {
- handle->status = ret;
- goto done;
- }
- if (ac->down_req->handle->status != LDB_SUCCESS) {
- handle->status = ac->down_req->handle->status;
- goto done;
- }
-
- if (ac->down_req->handle->state != LDB_ASYNC_DONE) {
- return LDB_SUCCESS;
- }
-
- /* mods done, go on */
- return objectclass_search_self(handle);
-
- case OC_SEARCH_SELF:
- ret = ldb_wait(ac->search_req->handle, LDB_WAIT_NONE);
-
- if (ret != LDB_SUCCESS) {
- handle->status = ret;
- goto done;
- }
- if (ac->search_req->handle->status != LDB_SUCCESS) {
- handle->status = ac->search_req->handle->status;
- goto done;
- }
-
- if (ac->search_req->handle->state != LDB_ASYNC_DONE) {
- return LDB_SUCCESS;
- }
-
- /* self search done, go on */
- return objectclass_do_mod(handle);
+ ldb = ldb_module_get_ctx(ac->module);
- case OC_DO_MOD:
- ret = ldb_wait(ac->mod_req->handle, LDB_WAIT_NONE);
-
- if (ret != LDB_SUCCESS) {
- handle->status = ret;
- goto done;
- }
- if (ac->mod_req->handle->status != LDB_SUCCESS) {
- handle->status = ac->mod_req->handle->status;
- goto done;
- }
-
- if (ac->mod_req->handle->state != LDB_ASYNC_DONE) {
- return LDB_SUCCESS;
- }
-
- break;
-
- case OC_SEARCH_ADD_PARENT:
- ret = ldb_wait(ac->search_req->handle, LDB_WAIT_NONE);
-
- if (ret != LDB_SUCCESS && ret != LDB_ERR_NO_SUCH_OBJECT) {
- handle->status = ret;
- goto done;
- }
- if (ac->search_req->handle->status != LDB_SUCCESS
- && ac->search_req->handle->status != LDB_ERR_NO_SUCH_OBJECT) {
- handle->status = ac->search_req->handle->status;
- goto done;
- }
-
- if (ac->search_req->handle->state != LDB_ASYNC_DONE) {
- return LDB_SUCCESS;
- }
-
- /* parent search done, go on */
- return objectclass_do_add(handle);
+ /* Check if we have a valid entry - this check is needed since
+ * we don't get a LDB_ERR_NO_SUCH_OBJECT error. */
+ if (ac->search_res == NULL) {
+ ldb_asprintf_errstring(ldb, "objectclass: Cannot rename %s, entry does not exist!",
+ ldb_dn_get_linearized(ac->req->op.rename.newdn));
+ return LDB_ERR_NO_SUCH_OBJECT;
+ }
- case OC_DO_ADD:
- ret = ldb_wait(ac->add_req->handle, LDB_WAIT_NONE);
+ if (ac->schema != NULL) {
+ struct ldb_message_element *oc_el_entry, *oc_el_parent;
+ const struct dsdb_class *objectclass;
+ const char *rdn_name;
+ bool allowed_class = false;
+ unsigned int i, j;
- if (ret != LDB_SUCCESS) {
- handle->status = ret;
- goto done;
- }
- if (ac->add_req->handle->status != LDB_SUCCESS) {
- handle->status = ac->add_req->handle->status;
- goto done;
+ oc_el_entry = ldb_msg_find_element(ac->search_res->message,
+ "objectClass");
+ if (oc_el_entry == NULL) {
+ /* existing entry without a valid object class? */
+ return LDB_ERR_OPERATIONS_ERROR;
}
-
- if (ac->add_req->handle->state != LDB_ASYNC_DONE) {
- return LDB_SUCCESS;
+ objectclass = get_last_structural_class(ac->schema, oc_el_entry);
+ if (objectclass == NULL) {
+ /* existing entry without a valid object class? */
+ return LDB_ERR_OPERATIONS_ERROR;
}
- break;
-
- case OC_SEARCH_RENAME_PARENT:
- ret = ldb_wait(ac->search_req->handle, LDB_WAIT_NONE);
-
- if (ret != LDB_SUCCESS && ret != LDB_ERR_NO_SUCH_OBJECT) {
- handle->status = ret;
- goto done;
- }
- if (ac->search_req->handle->status != LDB_SUCCESS && ac->search_req->handle->status != LDB_ERR_NO_SUCH_OBJECT) {
- handle->status = ac->search_req->handle->status;
- goto done;
+ rdn_name = ldb_dn_get_rdn_name(ac->req->op.rename.newdn);
+ if ((objectclass->rDNAttID != NULL) &&
+ (ldb_attr_cmp(rdn_name, objectclass->rDNAttID) != 0)) {
+ ldb_asprintf_errstring(ldb,
+ "objectclass: RDN %s is not correct for most specific structural objectclass %s, should be %s",
+ rdn_name,
+ objectclass->lDAPDisplayName,
+ objectclass->rDNAttID);
+ return LDB_ERR_UNWILLING_TO_PERFORM;
}
- if (ac->search_req->handle->state != LDB_ASYNC_DONE) {
- return LDB_SUCCESS;
+ oc_el_parent = ldb_msg_find_element(ac->search_res2->message,
+ "objectClass");
+ if (oc_el_parent == NULL) {
+ /* existing entry without a valid object class? */
+ return LDB_ERR_OPERATIONS_ERROR;
}
- /* parent search done, go on */
- return objectclass_do_rename(handle);
-
- case OC_DO_RENAME:
- ret = ldb_wait(ac->rename_req->handle, LDB_WAIT_NONE);
+ for (i=0; allowed_class == false && i < oc_el_parent->num_values; i++) {
+ const struct dsdb_class *sclass;
- if (ret != LDB_SUCCESS) {
- handle->status = ret;
- goto done;
- }
- if (ac->rename_req->handle->status != LDB_SUCCESS) {
- handle->status = ac->rename_req->handle->status;
- goto done;
+ sclass = dsdb_class_by_lDAPDisplayName_ldb_val(ac->schema,
+ &oc_el_parent->values[i]);
+ if (!sclass) {
+ /* We don't know this class? what is going on? */
+ continue;
+ }
+ for (j=0; sclass->systemPossibleInferiors && sclass->systemPossibleInferiors[j]; j++) {
+ if (ldb_attr_cmp(objectclass->lDAPDisplayName, sclass->systemPossibleInferiors[j]) == 0) {
+ allowed_class = true;
+ break;
+ }
+ }
}
- if (ac->rename_req->handle->state != LDB_ASYNC_DONE) {
- return LDB_SUCCESS;
+ if (!allowed_class) {
+ ldb_asprintf_errstring(ldb,
+ "objectclass: structural objectClass %s is not a valid child class for %s",
+ objectclass->lDAPDisplayName, ldb_dn_get_linearized(ac->search_res2->message->dn));
+ return LDB_ERR_NAMING_VIOLATION;
}
-
- break;
-
- default:
- ret = LDB_ERR_OPERATIONS_ERROR;
- goto done;
}
- ret = LDB_SUCCESS;
-
-done:
- handle->state = LDB_ASYNC_DONE;
- return ret;
-}
+ /* Ensure we are not trying to rename it to be a child of itself */
+ if ((ldb_dn_compare_base(ac->req->op.rename.olddn,
+ ac->req->op.rename.newdn) == 0) &&
+ (ldb_dn_compare(ac->req->op.rename.olddn,
+ ac->req->op.rename.newdn) != 0)) {
+ ldb_asprintf_errstring(ldb, "objectclass: Cannot rename %s to be a child of itself",
+ ldb_dn_get_linearized(ac->req->op.rename.olddn));
+ return LDB_ERR_UNWILLING_TO_PERFORM;
+ }
-static int oc_wait_all(struct ldb_handle *handle) {
+ /* Fix up the DN to be in the standard form, taking
+ * particular care to match the parent DN */
+ ret = fix_dn(ac,
+ ac->req->op.rename.newdn,
+ ac->search_res2->message->dn,
+ &fixed_dn);
+ if (ret != LDB_SUCCESS) {
+ ldb_asprintf_errstring(ldb, "objectclass: Could not munge DN %s into normal form",
+ ldb_dn_get_linearized(ac->req->op.rename.newdn));
+ return ret;
- int ret;
+ }
- while (handle->state != LDB_ASYNC_DONE) {
- ret = oc_wait(handle);
- if (ret != LDB_SUCCESS) {
- return ret;
- }
+ ret = ldb_build_rename_req(&rename_req, ldb, ac,
+ ac->req->op.rename.olddn, fixed_dn,
+ ac->req->controls,
+ ac, oc_op_callback,
+ ac->req);
+ if (ret != LDB_SUCCESS) {
+ return ret;
}
- return handle->status;
+ /* perform the rename */
+ return ldb_next_request(ac->module, rename_req);
}
-static int objectclass_wait(struct ldb_handle *handle, enum ldb_wait_type type)
+static int objectclass_init(struct ldb_module *module)
{
- if (type == LDB_WAIT_ALL) {
- return oc_wait_all(handle);
- } else {
- return oc_wait(handle);
+ struct ldb_context *ldb = ldb_module_get_ctx(module);
+ int ret;
+ /* Init everything else */
+ ret = ldb_next_init(module);
+ if (ret != LDB_SUCCESS) {
+ return ret;
}
+
+ /* Look for the opaque to indicate we might have to cut down the DN of defaultObjectCategory */
+ ldb_module_set_private(module, ldb_get_opaque(ldb, DSDB_EXTENDED_DN_STORE_FORMAT_OPAQUE_NAME));
+
+ return ret;
}
-static const struct ldb_module_ops objectclass_ops = {
+_PUBLIC_ const struct ldb_module_ops ldb_objectclass_module_ops = {
.name = "objectclass",
.add = objectclass_add,
.modify = objectclass_modify,
.rename = objectclass_rename,
- .wait = objectclass_wait
+ .init_context = objectclass_init
};
-
-int ldb_objectclass_init(void)
-{
- return ldb_register_module(&objectclass_ops);
-}
-