ldb database library
Copyright (C) Simo Sorce 2006-2008
- Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005-2007
+ Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005-2009
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
#include "libcli/security/security.h"
#include "auth/auth.h"
#include "param/param.h"
+#include "../libds/common/flags.h"
struct oc_context {
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(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
return LDB_ERR_OBJECT_CLASS_VIOLATION;
}
-static DATA_BLOB *get_sd(struct ldb_module *module, TALLOC_CTX *mem_ctx,
- const struct dsdb_class *objectclass)
-{
- struct ldb_context *ldb = ldb_module_get_ctx(module);
- enum ndr_err_code ndr_err;
- DATA_BLOB *linear_sd;
- struct auth_session_info *session_info
- = ldb_get_opaque(ldb, "sessionInfo");
- struct security_descriptor *sd;
- const struct dom_sid *domain_sid = samdb_domain_sid(ldb);
-
- if (!objectclass->defaultSecurityDescriptor || !domain_sid) {
- return NULL;
- }
-
- sd = sddl_decode(mem_ctx,
- objectclass->defaultSecurityDescriptor,
- domain_sid);
-
- if (!sd || !session_info || !session_info->security_token) {
- return NULL;
- }
-
- 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;
- }
-
- ndr_err = ndr_push_struct_blob(linear_sd, mem_ctx,
- lp_iconv_convenience(ldb_get_opaque(ldb, "loadparm")),
- sd,
- (ndr_push_flags_fn_t)ndr_push_security_descriptor);
- if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
- return NULL;
- }
-
- return linear_sd;
-
-}
-
static int get_search_callback(struct ldb_request *req, struct ldb_reply *ares)
{
struct ldb_context *ldb;
ares->response, ares->error);
}
+ ldb_reset_err_string(ldb);
+
switch (ares->type) {
case LDB_REPLY_ENTRY:
if (ac->search_res != NULL) {
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;
}
+
+ 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
+
+
/* 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));
+ return ldb_dn_set_component(*fixed_dn, 0, upper_rdn_attr, *rdn_val);
}
/* 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)
+static int fix_check_attributes(struct ldb_context *ldb,
+ const struct dsdb_schema *schema,
+ struct ldb_message *msg,
+ enum ldb_request_type op)
{
- int i;
+ unsigned int i;
for (i=0; i < msg->num_elements; i++) {
const struct dsdb_attribute *attribute = dsdb_attribute_by_lDAPDisplayName(schema, msg->elements[i].name);
/* Add in a very special case for 'clearTextPassword',
if (!attribute) {
if (strcasecmp(msg->elements[i].name, "clearTextPassword") != 0) {
ldb_asprintf_errstring(ldb, "attribute %s is not a valid attribute in schema", msg->elements[i].name);
- return LDB_ERR_UNDEFINED_ATTRIBUTE_TYPE;
+ /* Apparently Windows sends exactly this behaviour */
+ return LDB_ERR_NO_SUCH_ATTRIBUTE;
}
} else {
msg->elements[i].name = attribute->lDAPDisplayName;
+
+ /* We have to deny write operations on constructed attributes */
+ if ((attribute->systemFlags & DS_FLAG_ATTR_IS_CONSTRUCTED) != 0) {
+ if (op == LDB_ADD) {
+ return LDB_ERR_UNDEFINED_ATTRIBUTE_TYPE;
+ } else {
+ return LDB_ERR_CONSTRAINT_VIOLATION;
+ }
+ }
+
}
}
struct oc_context *ac;
struct ldb_dn *parent_dn;
int ret;
+ static const char * const parent_attrs[] = { "objectGUID", "objectClass", NULL };
ldb = ldb_module_get_ctx(module);
ret = ldb_build_search_req(&search_req, ldb,
ac, parent_dn, LDB_SCOPE_BASE,
- "(objectClass=*)", NULL,
+ "(objectClass=*)", parent_attrs,
NULL,
ac, get_search_callback,
req);
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_UNWILLING_TO_PERFORM;
+ 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 */
ret = fix_dn(msg,
ac->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(ldb, schema, msg);
+ ret = fix_check_attributes(ldb, schema, msg, ac->req->operation);
if (ret != LDB_SUCCESS) {
talloc_free(mem_ctx);
return ret;
/* 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);
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) {
value = talloc_strdup(msg, current->objectclass->lDAPDisplayName);
}
ret = ldb_msg_add_string(msg, "objectClass", value);
if (ret != LDB_SUCCESS) {
- ldb_set_errstring(ldb,
+ ldb_set_errstring(ldb,
"objectclass: could not re-add sorted "
"objectclass to modify msg");
talloc_free(mem_ctx);
if (!current->next) {
struct ldb_message_element *el;
int32_t systemFlags = 0;
+ const char *rdn_name = ldb_dn_get_rdn_name(msg->dn);
+ if (current->objectclass->rDNAttID
+ && ldb_attr_cmp(rdn_name, current->objectclass->rDNAttID) != 0) {
+ ldb_asprintf_errstring(ldb,
+ "RDN %s is not correct for most specific structural objectclass %s, should be %s",
+ rdn_name, current->objectclass->lDAPDisplayName, current->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;
+ 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(schema, &oc_el->values[i]);
+ if (!sclass) {
+ /* We don't know this class? what is going on? */
+ continue;
+ }
+ if (ldb_request_get_control(ac->req, LDB_CONTROL_RELAX_OID)) {
+ for (j=0; sclass->systemPossibleInferiors && sclass->systemPossibleInferiors[j]; j++) {
+ if (ldb_attr_cmp(current->objectclass->lDAPDisplayName, sclass->systemPossibleInferiors[j]) == 0) {
+ allowed_class = true;
+ break;
+ }
+ }
+ } else {
+ for (j=0; sclass->systemPossibleInferiors && sclass->systemPossibleInferiors[j]; j++) {
+ if (ldb_attr_cmp(current->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",
+ current->objectclass->lDAPDisplayName, ldb_dn_get_linearized(ac->search_res->message->dn));
+ return LDB_ERR_NAMING_VIOLATION;
+ }
+ }
+
+ if (current->objectclass->systemOnly && !ldb_request_get_control(ac->req, LDB_CONTROL_RELAX_OID)) {
+ ldb_asprintf_errstring(ldb, "objectClass %s is systemOnly, rejecting creation of %s",
+ current->objectclass->lDAPDisplayName, ldb_dn_get_linearized(msg->dn));
+ return LDB_ERR_UNWILLING_TO_PERFORM;
+ }
+
if (!ldb_msg_find_element(msg, "objectCategory")) {
- value = talloc_strdup(msg, current->objectclass->defaultObjectCategory);
+ 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, current->objectclass->defaultObjectCategory);
+ value = ldb_dn_alloc_linearized(msg, dn);
+ talloc_free(dn);
+ } else {
+ value = talloc_strdup(msg, current->objectclass->defaultObjectCategory);
+ }
if (value == NULL) {
ldb_oom(ldb);
talloc_free(mem_ctx);
ldb_msg_add_string(msg, "objectCategory", value);
}
if (!ldb_msg_find_element(msg, "showInAdvancedViewOnly") && (current->objectclass->defaultHidingValue == true)) {
- ldb_msg_add_string(msg, "showInAdvancedViewOnly",
+ ldb_msg_add_string(msg, "showInAdvancedViewOnly",
"TRUE");
}
- if (!ldb_msg_find_element(msg, "nTSecurityDescriptor")) {
- DATA_BLOB *sd = get_sd(ac->module, mem_ctx, current->objectclass);
- if (sd) {
- ldb_msg_add_steal_value(msg, "nTSecurityDescriptor", sd);
- }
- }
/* There are very special rules for systemFlags, see MS-ADTS 3.1.1.5.2.4 */
el = ldb_msg_find_element(msg, "systemFlags");
/* 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(current->objectclass->lDAPDisplayName, "attributeSchema") == 0) {
systemFlags &= ~SYSTEM_FLAG_ATTR_IS_RDN;
|| ldb_attr_cmp(current->objectclass->lDAPDisplayName, "ntDSDSA") == 0) {
systemFlags |= (int32_t)(SYSTEM_FLAG_DISALLOW_MOVE_ON_DELETE);
- } else if (ldb_attr_cmp(current->objectclass->lDAPDisplayName, "siteLink") == 0
+ } else if (ldb_attr_cmp(current->objectclass->lDAPDisplayName, "siteLink") == 0
|| ldb_attr_cmp(current->objectclass->lDAPDisplayName, "siteLinkBridge") == 0
|| ldb_attr_cmp(current->objectclass->lDAPDisplayName, "nTDSConnection") == 0) {
systemFlags |= (int32_t)(SYSTEM_FLAG_CONFIG_ALLOW_RENAME);
if (!schema) {
return ldb_next_request(module, req);
}
- objectclass_element = ldb_msg_find_element(req->op.mod.message, "objectClass");
+
+ /* 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) {
/* If no part of this touches the objectClass, then we don't
* need to make any changes. */
+ objectclass_element = ldb_msg_find_element(req->op.mod.message, "objectClass");
/* If the only operation is the deletion of the objectClass
* then go on with just fixing the attribute case */
return LDB_ERR_OPERATIONS_ERROR;
}
- ret = fix_attributes(ldb, schema, msg);
+ ret = fix_check_attributes(ldb, schema, msg, req->operation);
if (ret != LDB_SUCCESS) {
return ret;
}
return LDB_ERR_OPERATIONS_ERROR;
}
- ret = fix_attributes(ldb, schema, msg);
+ ret = fix_check_attributes(ldb, schema, msg, req->operation);
if (ret != LDB_SUCCESS) {
talloc_free(mem_ctx);
return ret;
return LDB_ERR_OPERATIONS_ERROR;
}
- ret = fix_attributes(ldb, schema, msg);
+ ret = fix_check_attributes(ldb, schema, msg, req->operation);
if (ret != LDB_SUCCESS) {
ldb_oom(ldb);
return ret;
LDB_ERR_OPERATIONS_ERROR);
}
+ talloc_free(ares);
+
ret = ldb_build_search_req(&search_req, ldb, ac,
ac->req->op.mod.message->dn, LDB_SCOPE_BASE,
"(objectClass=*)",
ldb_oom(ldb);
return LDB_ERR_OPERATIONS_ERROR;
}
+
+ /*
+ it makes a search request, looking for the parent DN to fix up the new DN
+ to a standard one, at objectclass_do_rename()
+ */
ret = ldb_build_search_req(&search_req, ldb,
ac, parent_dn, LDB_SCOPE_BASE,
"(objectClass=*)",
- attrs, NULL,
+ 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;
+ }
+
ac->step_fn = objectclass_do_rename;
return ldb_next_request(ac->module, search_req);
+
+
}
static int objectclass_do_rename(struct oc_context *ac)
return ldb_next_request(ac->module, rename_req);
}
+static int objectclass_init(struct ldb_module *module)
+{
+ 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 ldb_next_init(module);
+}
+
_PUBLIC_ const struct ldb_module_ops ldb_objectclass_module_ops = {
.name = "objectclass",
.add = objectclass_add,
.modify = objectclass_modify,
.rename = objectclass_rename,
+ .init_context = objectclass_init
};
git.samba.org / ira / wip.git / blobdiff