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authorAndrew Tridgell <tridge@samba.org>2009-12-17 23:01:13 +1100
committerAndrew Tridgell <tridge@samba.org>2009-12-18 21:03:40 +1100
commit5d7805b07f1417e79325c5fd51c0c621f609b6df (patch)
tree6ab905de0fba965c86f3f381079ca416d2dfe5e2 /source4/dsdb/samdb
parentb3c69e76ec9dbcffe363e3bdfcd7ed3c76b48220 (diff)
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s4-dsdb: greatly simplify the subtree_delete module
We can use dsdb_module_search() to make this much simpler Pair-Programmed-With: Andrew Bartlett <abartlet@samba.org>
Diffstat (limited to 'source4/dsdb/samdb')
-rw-r--r--source4/dsdb/samdb/ldb_modules/subtree_delete.c137
1 files changed, 20 insertions, 117 deletions
diff --git a/source4/dsdb/samdb/ldb_modules/subtree_delete.c b/source4/dsdb/samdb/ldb_modules/subtree_delete.c
index e1ce9c1fa8..34f5ccae83 100644
--- a/source4/dsdb/samdb/ldb_modules/subtree_delete.c
+++ b/source4/dsdb/samdb/ldb_modules/subtree_delete.c
@@ -2,6 +2,7 @@
ldb database library
Copyright (C) Andrew Bartlett <abartlet@samba.org> 2006-2007
+ Copyright (C) Andrew Tridgell <tridge@samba.org> 2009
Copyright (C) Stefan Metzmacher <metze@samba.org> 2007
Copyright (C) Simo Sorce <idra@samba.org> 2008
@@ -30,137 +31,39 @@
*/
#include "ldb_module.h"
+#include "dsdb/samdb/ldb_modules/util.h"
-struct subtree_delete_context {
- struct ldb_module *module;
- struct ldb_request *req;
-
- int num_children;
-};
-
-static struct subtree_delete_context *subdel_ctx_init(struct ldb_module *module,
- struct ldb_request *req)
-{
- struct ldb_context *ldb;
- struct subtree_delete_context *ac;
-
- ldb = ldb_module_get_ctx(module);
-
- ac = talloc_zero(req, struct subtree_delete_context);
- if (ac == NULL) {
- ldb_oom(ldb);
- return NULL;
- }
-
- ac->module = module;
- ac->req = req;
-
- ac->num_children = 0;
-
- return ac;
-}
-
-static int subtree_delete_search_callback(struct ldb_request *req,
- struct ldb_reply *ares)
-{
- struct ldb_context *ldb;
- struct subtree_delete_context *ac;
- int ret;
-
- ac = talloc_get_type(req->context, struct subtree_delete_context);
- ldb = ldb_module_get_ctx(ac->module);
-
- if (!ares) {
- ret = LDB_ERR_OPERATIONS_ERROR;
- goto done;
- }
- if (ares->error != LDB_SUCCESS) {
- return ldb_module_done(ac->req, ares->controls,
- ares->response, ares->error);
- }
-
- switch (ares->type) {
- case LDB_REPLY_ENTRY:
- /* count entry */
- ++(ac->num_children);
-
- talloc_free(ares);
- ret = LDB_SUCCESS;
- break;
-
- case LDB_REPLY_REFERRAL:
- /* ignore */
- talloc_free(ares);
- ret = LDB_SUCCESS;
- break;
-
- case LDB_REPLY_DONE:
- talloc_free(ares);
-
- if (ac->num_children > 0) {
- ldb_asprintf_errstring(ldb,
- "Cannot delete %s, not a leaf node "
- "(has %d children)\n",
- ldb_dn_get_linearized(ac->req->op.del.dn),
- ac->num_children);
- return ldb_module_done(ac->req, NULL, NULL,
- LDB_ERR_NOT_ALLOWED_ON_NON_LEAF);
- }
-
- /* ok no children, let the original request through */
- ret = ldb_next_request(ac->module, ac->req);
- break;
- }
-
-done:
- if (ret != LDB_SUCCESS) {
- return ldb_module_done(ac->req, NULL, NULL, ret);
- }
-
- return LDB_SUCCESS;
-}
static int subtree_delete(struct ldb_module *module, struct ldb_request *req)
{
- struct ldb_context *ldb;
- static const char * const attrs[2] = { "distinguishedName", NULL };
- struct ldb_request *search_req;
- struct subtree_delete_context *ac;
+ static const char * const attrs[] = { NULL };
int ret;
+ struct ldb_result *res = NULL;
- if (ldb_dn_is_special(req->op.rename.olddn)) {
+ if (ldb_dn_is_special(req->op.del.dn)) {
/* do not manipulate our control entries */
return ldb_next_request(module, req);
}
- ldb = ldb_module_get_ctx(module);
-
- /* This gets complex: We need to:
- - Do a search for all entires under this entry
- - Wait for these results to appear
- - In the callback for each result, count the children (if any)
- - return an error if there are any
- */
-
- ac = subdel_ctx_init(module, req);
- if (!ac) {
- return LDB_ERR_OPERATIONS_ERROR;
- }
-
- /* we do not really need to find all descendents,
- * if there is even one single direct child, that's
- * enough to bail out */
- ret = ldb_build_search_req(&search_req, ldb, ac,
- req->op.del.dn, LDB_SCOPE_ONELEVEL,
- "(objectClass=*)", attrs,
- req->controls,
- ac, subtree_delete_search_callback,
- req);
+ /* see if we have any children */
+ ret = dsdb_module_search(module, req, &res, req->op.del.dn, LDB_SCOPE_ONELEVEL, attrs,
+ DSDB_SEARCH_SHOW_DELETED, NULL);
if (ret != LDB_SUCCESS) {
+ talloc_free(res);
return ret;
}
+ if (res->count > 0) {
+ ldb_asprintf_errstring(ldb_module_get_ctx(module),
+ "Cannot delete %s, not a leaf node "
+ "(has %d children)\n",
+ ldb_dn_get_linearized(req->op.del.dn),
+ res->count);
+ talloc_free(res);
+ return LDB_ERR_NOT_ALLOWED_ON_NON_LEAF;
+ }
+ talloc_free(res);
- return ldb_next_request(module, search_req);
+ return ldb_next_request(module, req);
}
const struct ldb_module_ops ldb_subtree_delete_module_ops = {