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-rw-r--r--source4/dsdb/samdb/ldb_modules/objectclass.c429
1 files changed, 351 insertions, 78 deletions
diff --git a/source4/dsdb/samdb/ldb_modules/objectclass.c b/source4/dsdb/samdb/ldb_modules/objectclass.c
index 452896d5a3..14dbe3b313 100644
--- a/source4/dsdb/samdb/ldb_modules/objectclass.c
+++ b/source4/dsdb/samdb/ldb_modules/objectclass.c
@@ -42,7 +42,9 @@
struct oc_context {
- enum oc_step {OC_DO_REQ, OC_SEARCH_SELF, OC_DO_MOD} step;
+ 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;
@@ -52,7 +54,9 @@ struct oc_context {
struct ldb_request *search_req;
struct ldb_reply *search_res;
+ struct ldb_request *add_req;
struct ldb_request *mod_req;
+ struct ldb_request *rename_req;
};
struct class_list {
@@ -272,53 +276,186 @@ static DATA_BLOB *get_sd(struct ldb_module *module, TALLOC_CTX *mem_ctx,
}
+static int get_search_callback(struct ldb_context *ldb, void *context, struct ldb_reply *ares)
+{
+ struct oc_context *ac;
+
+ ac = talloc_get_type(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;
+ }
+
+ ac->search_res = talloc_move(ac, &ares);
+ } else {
+ talloc_free(ares);
+ }
+
+ return LDB_SUCCESS;
+}
+
+/* Fix up the DN to be in the standard form, taking particular care to match the parent DN
+
+ This should mean that if the parent is:
+ CN=Users,DC=samba,DC=example,DC=com
+ and a proposed child is
+ cn=Admins ,cn=USERS,dc=Samba,dc=example,dc=COM
+
+ The resulting DN should be:
+
+ CN=Admins,CN=Users,DC=samba,DC=example,DC=com
+
+ */
+static int fix_dn(TALLOC_CTX *mem_ctx,
+ struct ldb_dn *newdn, struct ldb_dn *parent_dn,
+ struct ldb_dn **fixed_dn)
+{
+ char *upper_rdn_attr;
+ /* 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);
+
+ /* We need the attribute name in upper case */
+ upper_rdn_attr = strupper_talloc(*fixed_dn,
+ ldb_dn_get_rdn_name(newdn));
+ 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));
+}
+
static int objectclass_add(struct ldb_module *module, struct ldb_request *req)
{
- struct ldb_message_element *objectclass_element;
- const struct dsdb_schema *schema = dsdb_get_schema(module->ldb);
- struct class_list *sorted, *current;
- struct ldb_request *down_req;
- struct ldb_message *msg;
- int ret;
- TALLOC_CTX *mem_ctx;
+ static const char * const attrs[] = { NULL };
+
+ struct ldb_handle *h;
+ struct oc_context *ac;
+ struct ldb_dn *parent_dn;
+ int ret;
+
ldb_debug(module->ldb, LDB_DEBUG_TRACE, "objectclass_add\n");
- if (ldb_dn_is_special(req->op.add.message->dn)) { /* do not manipulate our control entries */
+ /* do not manipulate our control entries */
+ if (ldb_dn_is_special(req->op.add.message->dn)) {
return ldb_next_request(module, req);
}
-
- objectclass_element = ldb_msg_find_element(req->op.add.message, "objectClass");
- /* If no part of this add has an objectClass, then we don't
- * need to make any changes. cn=rootdse doesn't have an objectClass */
- if (!objectclass_element) {
+ /* Need to object to this, but cn=rootdse doesn't hae an objectClass... */
+ if (ldb_msg_find_element(req->op.add.message,
+ "objectClass") == NULL) {
return ldb_next_request(module, req);
}
- mem_ctx = talloc_new(req);
+ 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;
+
+ parent_dn = ldb_dn_get_parent(ac->search_req, ac->orig_req->op.mod.message->dn);
+ if (parent_dn == NULL) {
+ ldb_oom(module->ldb);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ ret = ldb_build_search_req(&ac->search_req, module->ldb,
+ ac, parent_dn, LDB_SCOPE_BASE,
+ "(objectClass=*)",
+ attrs, NULL,
+ ac, get_search_callback);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+
+ ldb_set_timeout_from_prev_req(ac->module->ldb, ac->orig_req, ac->search_req);
+
+ ac->step = OC_SEARCH_ADD_PARENT;
+
+ return ldb_next_request(ac->module, ac->search_req);
+}
+
+static int objectclass_do_add(struct ldb_handle *h)
+{
+ const struct dsdb_schema *schema;
+ struct oc_context *ac;
+ struct ldb_message_element *objectclass_element;
+ 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);
+
+ mem_ctx = talloc_new(ac);
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!");
+ ac->add_req = talloc(ac, struct ldb_request);
+ if (ac->add_req == NULL) {
talloc_free(mem_ctx);
return LDB_ERR_OPERATIONS_ERROR;
}
- *down_req = *req; /* copy the request */
+ *ac->add_req = *ac->orig_req;
- down_req->op.add.message = msg = ldb_msg_copy_shallow(down_req, req->op.add.message);
+ ac->add_req->op.add.message = msg = ldb_msg_copy_shallow(ac->add_req, ac->orig_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 */
+ if (ac->search_res == NULL) {
+ if (ldb_dn_get_comp_num(ac->orig_req->op.add.message->dn) <= 1) {
+ /* Allow cn=rootdse and cn=templates for now... */
+ } else if (ldb_dn_compare(ldb_get_root_basedn(ac->module->ldb), ac->orig_req->op.add.message->dn) == 0) {
+ /* Allow the tree to be started */
+ } 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;
+ }
+ } else {
+
+ /* 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->search_res->message->dn,
+ &msg->dn);
+
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+
+ /* TODO: Check this is a valid child to this parent,
+ * by reading the allowedChildClasses and
+ * allowedChildClasssesEffective attributes */
+
+ }
+
+ /* This is now the objectClass list from the database */
+ objectclass_element = ldb_msg_find_element(msg, "objectClass");
- if (down_req->op.add.message == NULL) {
+ if (!objectclass_element) {
+ /* Where did it go? bail now... */
talloc_free(mem_ctx);
return LDB_ERR_OPERATIONS_ERROR;
}
-
- ret = objectclass_sort(module, msg, mem_ctx, objectclass_element, &sorted);
+ ret = objectclass_sort(ac->module, msg, mem_ctx, objectclass_element, &sorted);
if (ret != LDB_SUCCESS) {
talloc_free(mem_ctx);
return ret;
@@ -339,7 +476,7 @@ static int objectclass_add(struct ldb_module *module, struct ldb_request *req)
for (current = sorted; current; current = current->next) {
ret = ldb_msg_add_string(msg, "objectClass", current->objectclass);
if (ret != LDB_SUCCESS) {
- ldb_set_errstring(module->ldb,
+ ldb_set_errstring(ac->module->ldb,
"objectclass: could not re-add sorted "
"objectclass to modify msg");
talloc_free(mem_ctx);
@@ -356,7 +493,7 @@ static int objectclass_add(struct ldb_module *module, struct ldb_request *req)
objectclass->defaultObjectCategory);
}
if (!ldb_msg_find_element(msg, "nTSecurityDescriptor")) {
- DATA_BLOB *sd = get_sd(module, mem_ctx, objectclass);
+ DATA_BLOB *sd = get_sd(ac->module, mem_ctx, objectclass);
ldb_msg_add_steal_value(msg, "nTSecurityDescriptor", sd);
}
}
@@ -364,21 +501,19 @@ static int objectclass_add(struct ldb_module *module, struct ldb_request *req)
}
talloc_free(mem_ctx);
- ret = ldb_msg_sanity_check(module->ldb, msg);
+ ret = ldb_msg_sanity_check(ac->module->ldb, msg);
if (ret != LDB_SUCCESS) {
return ret;
}
- /* go on with the call chain */
- ret = ldb_next_request(module, down_req);
+ h->state = LDB_ASYNC_INIT;
+ h->status = LDB_SUCCESS;
- /* 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;
+ ac->step = OC_DO_ADD;
+
+ /* perform the add */
+ return ldb_next_request(ac->module, ac->add_req);
}
static int objectclass_modify(struct ldb_module *module, struct ldb_request *req)
@@ -387,7 +522,8 @@ static int objectclass_modify(struct ldb_module *module, struct ldb_request *req
struct ldb_message *msg;
ldb_debug(module->ldb, LDB_DEBUG_TRACE, "objectclass_modify\n");
- if (ldb_dn_is_special(req->op.mod.message->dn)) { /* do not manipulate our control entries */
+ /* do not manipulate our control entries */
+ if (ldb_dn_is_special(req->op.mod.message->dn)) {
return ldb_next_request(module, req);
}
@@ -518,54 +654,24 @@ static int objectclass_modify(struct ldb_module *module, struct ldb_request *req
}
}
-static int get_self_callback(struct ldb_context *ldb, void *context, struct ldb_reply *ares)
+static int objectclass_search_self(struct ldb_handle *h)
{
- struct oc_context *ac;
-
- ac = talloc_get_type(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;
- }
-
- ac->search_res = talloc_move(ac, &ares);
- } else {
- talloc_free(ares);
- }
-
- return LDB_SUCCESS;
-}
-
-static int objectclass_search_self(struct ldb_handle *h) {
-
+ int ret;
struct oc_context *ac;
static const char * const attrs[] = { "objectClass", NULL };
ac = talloc_get_type(h->private_data, struct oc_context);
- /* prepare the search operation */
- ac->search_req = talloc_zero(ac, struct ldb_request);
- if (ac->search_req == NULL) {
- ldb_debug(ac->module->ldb, LDB_DEBUG_ERROR, "Out of Memory!\n");
- return LDB_ERR_OPERATIONS_ERROR;
- }
+ ret = ldb_build_search_req(&ac->search_req, ac->module->ldb,
+ ac, ac->orig_req->op.mod.message->dn, LDB_SCOPE_BASE,
+ "(objectClass=*)",
+ attrs, NULL,
+ ac, get_search_callback);
- ac->search_req->operation = LDB_SEARCH;
- ac->search_req->op.search.base = ac->orig_req->op.mod.message->dn;
- ac->search_req->op.search.scope = LDB_SCOPE_BASE;
- ac->search_req->op.search.tree = ldb_parse_tree(ac->search_req, NULL);
- if (ac->search_req->op.search.tree == NULL) {
- ldb_set_errstring(ac->module->ldb, "objectclass: Internal error producing null search");
- return LDB_ERR_OPERATIONS_ERROR;
+ if (ret != LDB_SUCCESS) {
+ return ret;
}
- ac->search_req->op.search.attrs = attrs;
- ac->search_req->controls = NULL;
- ac->search_req->context = ac;
- ac->search_req->callback = get_self_callback;
+
ldb_set_timeout_from_prev_req(ac->module->ldb, ac->orig_req, ac->search_req);
ac->step = OC_SEARCH_SELF;
@@ -613,9 +719,9 @@ static int objectclass_do_mod(struct ldb_handle *h) {
objectclass_element = ldb_msg_find_element(ac->search_res->message,
"objectClass");
if (!objectclass_element) {
- /* Where did it go? Move along now, nothing to see here */
+ /* Where did it go? bail now... */
talloc_free(mem_ctx);
- return LDB_SUCCESS;
+ return LDB_ERR_OPERATIONS_ERROR;
}
/* modify dn */
@@ -664,6 +770,98 @@ static int objectclass_do_mod(struct ldb_handle *h) {
return ldb_next_request(ac->module, ac->mod_req);
}
+static int objectclass_rename(struct ldb_module *module, struct ldb_request *req)
+{
+
+ static const char * const attrs[] = { NULL };
+
+ struct ldb_handle *h;
+ 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 */
+ return ldb_next_request(module, req);
+ }
+
+ 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;
+
+ parent_dn = ldb_dn_get_parent(ac->search_req, ac->orig_req->op.rename.newdn);
+ if (parent_dn == NULL) {
+ ldb_oom(module->ldb);
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ ret = ldb_build_search_req(&ac->search_req, module->ldb,
+ ac, parent_dn, LDB_SCOPE_BASE,
+ "(objectClass=*)",
+ attrs, NULL,
+ ac, get_search_callback);
+ if (ret != LDB_SUCCESS) {
+ return ret;
+ }
+
+ ldb_set_timeout_from_prev_req(ac->module->ldb, ac->orig_req, ac->search_req);
+
+ ac->step = OC_SEARCH_RENAME_PARENT;
+
+ return ldb_next_request(ac->module, ac->search_req);
+}
+
+static int objectclass_do_rename(struct ldb_handle *h)
+{
+ struct oc_context *ac;
+ 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_set_timeout_from_prev_req(ac->module->ldb, ac->orig_req, ac->rename_req);
+
+ /* Check we have a valid parent */
+ 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;
+ }
+
+ /* 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);
+
+ 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 = OC_DO_RENAME;
+
+ /* perform the rename */
+ return ldb_next_request(ac->module, ac->rename_req);
+}
+
static int oc_wait(struct ldb_handle *handle) {
struct oc_context *ac;
int ret;
@@ -738,6 +936,80 @@ static int oc_wait(struct ldb_handle *handle) {
break;
+ case OC_SEARCH_ADD_PARENT:
+ 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;
+ }
+
+ /* parent search done, go on */
+ return objectclass_do_add(handle);
+
+ case OC_DO_ADD:
+ ret = ldb_wait(ac->add_req->handle, LDB_WAIT_NONE);
+
+ 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;
+ }
+
+ if (ac->add_req->handle->state != LDB_ASYNC_DONE) {
+ return LDB_SUCCESS;
+ }
+
+ break;
+
+ case OC_SEARCH_RENAME_PARENT:
+ 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;
+ }
+
+ /* parent search done, go on */
+ return objectclass_do_rename(handle);
+
+ case OC_DO_RENAME:
+ ret = ldb_wait(ac->rename_req->handle, LDB_WAIT_NONE);
+
+ 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;
+ }
+
+ if (ac->rename_req->handle->state != LDB_ASYNC_DONE) {
+ return LDB_SUCCESS;
+ }
+
+ break;
+
default:
ret = LDB_ERR_OPERATIONS_ERROR;
goto done;
@@ -777,6 +1049,7 @@ static const struct ldb_module_ops objectclass_ops = {
.name = "objectclass",
.add = objectclass_add,
.modify = objectclass_modify,
+ .rename = objectclass_rename,
.wait = objectclass_wait
};
generated by cgit (git 2.34.1) at 2024-07-04 18:47:52 +0000