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-rw-r--r--source4/dsdb/samdb/ldb_modules/samldb.c87
-rw-r--r--source4/dsdb/samdb/ldb_modules/schema_data.c149
2 files changed, 87 insertions, 149 deletions
diff --git a/source4/dsdb/samdb/ldb_modules/samldb.c b/source4/dsdb/samdb/ldb_modules/samldb.c
index 9d79776e66..6420e05ba8 100644
--- a/source4/dsdb/samdb/ldb_modules/samldb.c
+++ b/source4/dsdb/samdb/ldb_modules/samldb.c
@@ -689,6 +689,81 @@ static int samldb_find_for_defaultObjectCategory(struct samldb_ctx *ac)
return ldb_next_request(ac->module, req);
}
+/**
+ * msDS-IntId attributeSchema attribute handling
+ * during LDB_ADD request processing
+ */
+static int samldb_add_handle_msDS_IntId(struct samldb_ctx *ac)
+{
+ int ret;
+ bool id_exists;
+ uint32_t msds_intid;
+ uint32_t system_flags;
+ struct ldb_context *ldb;
+ struct ldb_result *ldb_res;
+ struct ldb_dn *schema_dn;
+
+ ldb = ldb_module_get_ctx(ac->module);
+ schema_dn = ldb_get_schema_basedn(ldb);
+
+ /* replicated update should always go through */
+ if (ldb_request_get_control(ac->req, DSDB_CONTROL_REPLICATED_UPDATE_OID)) {
+ return LDB_SUCCESS;
+ }
+
+ /* msDS-IntId is handled by system and should never be
+ * passed by clients */
+ if (ldb_msg_find_element(ac->msg, "msDS-IntId")) {
+ return LDB_ERR_UNWILLING_TO_PERFORM;
+ }
+
+ /* do not generate msDS-IntId if Relax control is passed */
+ if (ldb_request_get_control(ac->req, LDB_CONTROL_RELAX_OID)) {
+ return LDB_SUCCESS;
+ }
+
+ /* check Functional Level */
+ if (dsdb_functional_level(ldb) < DS_DOMAIN_FUNCTION_2003) {
+ return LDB_SUCCESS;
+ }
+
+ /* check systemFlags for SCHEMA_BASE_OBJECT flag */
+ system_flags = ldb_msg_find_attr_as_uint(ac->msg, "systemFlags", 0);
+ if (system_flags & SYSTEM_FLAG_SCHEMA_BASE_OBJECT) {
+ return LDB_SUCCESS;
+ }
+
+ /* Generate new value for msDs-IntId
+ * Value should be in 0x80000000..0xBFFFFFFF range */
+ msds_intid = generate_random() % 0X3FFFFFFF;
+ msds_intid += 0x80000000;
+
+ /* probe id values until unique one is found */
+ do {
+ msds_intid++;
+ if (msds_intid > 0xBFFFFFFF) {
+ msds_intid = 0x80000001;
+ }
+
+ ret = dsdb_module_search(ac->module, ac,
+ &ldb_res,
+ schema_dn, LDB_SCOPE_ONELEVEL, NULL, 0,
+ "(msDS-IntId=%d)", msds_intid);
+ if (ret != LDB_SUCCESS) {
+ ldb_debug_set(ldb, LDB_DEBUG_ERROR,
+ __location__": Searching for msDS-IntId=%d failed - %s\n",
+ msds_intid,
+ ldb_errstring(ldb));
+ return LDB_ERR_OPERATIONS_ERROR;
+ }
+ id_exists = (ldb_res->count > 0);
+
+ talloc_free(ldb_res);
+ } while(id_exists);
+
+ return ldb_msg_add_fmt(ac->msg, "msDS-IntId", "%d", msds_intid);
+}
+
/*
* samldb_add_entry (async)
@@ -870,6 +945,10 @@ static int samldb_fill_object(struct samldb_ctx *ac, const char *type)
}
}
+ /* handle msDS-IntID attribute */
+ ret = samldb_add_handle_msDS_IntId(ac);
+ if (ret != LDB_SUCCESS) return ret;
+
ret = samldb_add_step(ac, samldb_add_entry);
if (ret != LDB_SUCCESS) return ret;
@@ -1763,6 +1842,14 @@ static int samldb_modify(struct ldb_module *module, struct ldb_request *req)
return LDB_ERR_UNWILLING_TO_PERFORM;
}
+ /* msDS-IntId is not allowed to be modified
+ * except when modification comes from replication */
+ if (ldb_msg_find_element(req->op.mod.message, "msDS-IntId")) {
+ if (!ldb_request_get_control(req, DSDB_CONTROL_REPLICATED_UPDATE_OID)) {
+ return LDB_ERR_CONSTRAINT_VIOLATION;
+ }
+ }
+
/* TODO: do not modify original request, create a new one */
el = ldb_msg_find_element(req->op.mod.message, "groupType");
diff --git a/source4/dsdb/samdb/ldb_modules/schema_data.c b/source4/dsdb/samdb/ldb_modules/schema_data.c
index 8125a46cbb..d15c675675 100644
--- a/source4/dsdb/samdb/ldb_modules/schema_data.c
+++ b/source4/dsdb/samdb/ldb_modules/schema_data.c
@@ -92,37 +92,6 @@ struct schema_data_search_data {
const struct dsdb_schema *schema;
};
-/* context to be used during async operations */
-struct schema_data_context {
- struct ldb_module *module;
- struct ldb_request *req;
-
- const struct dsdb_schema *schema;
-};
-
-/* Create new context using
- * ldb_request as memory context */
-static int _schema_data_context_new(struct ldb_module *module,
- struct ldb_request *req,
- struct schema_data_context **pac)
-{
- struct schema_data_context *ac;
- struct ldb_context *ldb;
-
- ldb = ldb_module_get_ctx(module);
-
- *pac = ac = talloc_zero(req, struct schema_data_context);
- if (ac == NULL) {
- ldb_oom(ldb);
- return LDB_ERR_OPERATIONS_ERROR;
- }
- ac->module = module;
- ac->req = req;
- ac->schema = dsdb_get_schema(ldb);
-
- return LDB_SUCCESS;
-}
-
static int schema_data_init(struct ldb_module *module)
{
struct ldb_context *ldb;
@@ -163,57 +132,6 @@ static int schema_data_init(struct ldb_module *module)
return LDB_SUCCESS;
}
-
-/* Generate new value for msDs-IntId
- * Value should be in 0x80000000..0xBFFFFFFF range
- * Generated value is added ldb_msg */
-static int _schema_data_gen_msds_intid(struct schema_data_context *ac,
- struct ldb_message *ldb_msg)
-{
- uint32_t id;
-
- /* generate random num in 0x80000000..0xBFFFFFFF */
- id = generate_random() % 0X3FFFFFFF;
- id += 0x80000000;
-
- /* make sure id is unique and adjust if not */
- while (dsdb_attribute_by_attributeID_id(ac->schema, id)) {
- id++;
- if (id > 0xBFFFFFFF) {
- id = 0x80000001;
- }
- }
-
- /* add generated msDS-IntId value to ldb_msg */
- return ldb_msg_add_fmt(ldb_msg, "msDS-IntId", "%d", id);
-}
-
-static int _schema_data_add_callback(struct ldb_request *req,
- struct ldb_reply *ares)
-{
- struct schema_data_context *ac;
-
- ac = talloc_get_type(req->context, struct schema_data_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) {
- talloc_free(ares);
- return ldb_module_done(ac->req, NULL, NULL,
- LDB_ERR_OPERATIONS_ERROR);
- }
-
- return ldb_module_done(ac->req, ares->controls,
- ares->response, ares->error);
-}
-
static int schema_data_add(struct ldb_module *module, struct ldb_request *req)
{
struct ldb_context *ldb;
@@ -251,11 +169,6 @@ static int schema_data_add(struct ldb_module *module, struct ldb_request *req)
governsID = ldb_msg_find_ldb_val(req->op.add.message, "governsID");
if (attributeID) {
- /* Sanity check for not allowed attributes */
- if (ldb_msg_find_ldb_val(req->op.add.message, "msDS-IntId")) {
- return LDB_ERR_UNWILLING_TO_PERFORM;
- }
-
oid_attr = "attributeID";
oid = talloc_strndup(req, (const char *)attributeID->data, attributeID->length);
} else if (governsID) {
@@ -290,67 +203,6 @@ static int schema_data_add(struct ldb_module *module, struct ldb_request *req)
}
}
- /* bypass further processing if CONTROL_RELAX is set */
- if (ldb_request_get_control(req, LDB_CONTROL_RELAX_OID)) {
- return ldb_next_request(module, req);
- }
-
- /* generate and add msDS-IntId attr value */
- if (attributeID
- && (dsdb_functional_level(ldb) >= DS_DOMAIN_FUNCTION_2003)
- && !(ldb_msg_find_attr_as_uint(req->op.add.message, "systemFlags", 0) & SYSTEM_FLAG_SCHEMA_BASE_OBJECT)) {
- struct ldb_message *msg;
- struct schema_data_context *ac;
- struct ldb_request *add_req;
-
- if (_schema_data_context_new(module, req, &ac) != LDB_SUCCESS) {
- return LDB_ERR_OPERATIONS_ERROR;
- }
-
- /* we have to copy the message as the caller might have it as a const */
- msg = ldb_msg_copy_shallow(ac, req->op.add.message);
- if (msg == NULL) {
- ldb_oom(ldb);
- return LDB_ERR_OPERATIONS_ERROR;
- }
-
- /* generate unique value for msDS-IntId attr value */
- if (_schema_data_gen_msds_intid(ac, msg) != LDB_SUCCESS) {
- ldb_debug_set(ldb, LDB_DEBUG_ERROR,
- "_schema_data_gen_msds_intid() failed to generate msDS-IntId value\n");
- return LDB_ERR_OPERATIONS_ERROR;
- }
-
- ldb_build_add_req(&add_req, ldb, ac,
- msg,
- req->controls,
- ac, _schema_data_add_callback,
- req);
-
- return ldb_next_request(module, add_req);
- }
-
- return ldb_next_request(module, req);
-}
-
-static int schema_data_modify(struct ldb_module *module, struct ldb_request *req)
-{
- /* special objects should always go through */
- if (ldb_dn_is_special(req->op.mod.message->dn)) {
- return ldb_next_request(module, req);
- }
-
- /* replicated update should always go through */
- if (ldb_request_get_control(req, DSDB_CONTROL_REPLICATED_UPDATE_OID)) {
- return ldb_next_request(module, req);
- }
-
- /* msDS-IntId is not allowed to be modified */
- if (ldb_msg_find_ldb_val(req->op.mod.message, "msDS-IntId")) {
- return LDB_ERR_CONSTRAINT_VIOLATION;
- }
-
- /* go on with the call chain */
return ldb_next_request(module, req);
}
@@ -609,6 +461,5 @@ _PUBLIC_ const struct ldb_module_ops ldb_schema_data_module_ops = {
.name = "schema_data",
.init_context = schema_data_init,
.add = schema_data_add,
- .modify = schema_data_modify,
.search = schema_data_search
};
generated by cgit (git 2.34.1) at 2024-12-01 04:50:14 +0000