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-rw-r--r--source4/dsdb/repl/replicated_objects.c119
1 files changed, 113 insertions, 6 deletions
diff --git a/source4/dsdb/repl/replicated_objects.c b/source4/dsdb/repl/replicated_objects.c
index 82a46677f2..b0abc1acbe 100644
--- a/source4/dsdb/repl/replicated_objects.c
+++ b/source4/dsdb/repl/replicated_objects.c
@@ -31,9 +31,81 @@
#include "libcli/auth/libcli_auth.h"
#include "param/param.h"
+static WERROR dsdb_repl_merge_working_schema(struct ldb_context *ldb,
+ struct dsdb_schema *dest_schema,
+ const struct dsdb_schema *ref_schema)
+{
+ const struct dsdb_class *cur_class = NULL;
+ const struct dsdb_attribute *cur_attr = NULL;
+ int ret;
+
+ for (cur_class = ref_schema->classes;
+ cur_class;
+ cur_class = cur_class->next)
+ {
+ const struct dsdb_class *tmp1;
+ struct dsdb_class *tmp2;
+
+ tmp1 = dsdb_class_by_governsID_id(dest_schema,
+ cur_class->governsID_id);
+ if (tmp1 != NULL) {
+ continue;
+ }
+
+ /*
+ * Do a shallow copy so that original next and prev are
+ * not modified, we don't need to do a deep copy
+ * as the rest won't be modified and this is for
+ * a short lived object.
+ */
+ tmp2 = talloc(dest_schema->classes, struct dsdb_class);
+ if (tmp2 == NULL) {
+ return WERR_NOMEM;
+ }
+ *tmp2 = *cur_class;
+ DLIST_ADD(dest_schema->classes, tmp2);
+ }
+
+ for (cur_attr = ref_schema->attributes;
+ cur_attr;
+ cur_attr = cur_attr->next)
+ {
+ const struct dsdb_attribute *tmp1;
+ struct dsdb_attribute *tmp2;
+
+ tmp1 = dsdb_attribute_by_attributeID_id(dest_schema,
+ cur_attr->attributeID_id);
+ if (tmp1 != NULL) {
+ continue;
+ }
+
+ /*
+ * Do a shallow copy so that original next and prev are
+ * not modified, we don't need to do a deep copy
+ * as the rest won't be modified and this is for
+ * a short lived object.
+ */
+ tmp2 = talloc(dest_schema->attributes, struct dsdb_attribute);
+ if (tmp2 == NULL) {
+ return WERR_NOMEM;
+ }
+ *tmp2 = *cur_attr;
+ DLIST_ADD(dest_schema->attributes, tmp2);
+ }
+
+ ret = dsdb_setup_sorted_accessors(ldb, dest_schema);
+ if (LDB_SUCCESS != ret) {
+ DEBUG(0,("Failed to add new attribute to reference schema!\n"));
+ return WERR_INTERNAL_ERROR;
+ }
+
+ return WERR_OK;
+}
+
WERROR dsdb_repl_resolve_working_schema(struct ldb_context *ldb,
TALLOC_CTX *mem_ctx,
struct dsdb_schema_prefixmap *pfm_remote,
+ uint32_t cycle_before_switching,
struct dsdb_schema *initial_schema,
struct dsdb_schema *resulting_schema,
uint32_t object_count,
@@ -77,6 +149,25 @@ WERROR dsdb_repl_resolve_working_schema(struct ldb_context *ldb,
uint32_t converted_obj_count = 0;
uint32_t failed_obj_count = 0;
+ if (resulting_schema != working_schema) {
+ /*
+ * If the selfmade schema is not the schema used to
+ * translate and validate replicated object,
+ * Which means that we are using the bootstrap schema
+ * Then we add attributes and classes that were already
+ * translated to the working schema, the idea is that
+ * we might need to add new attributes and classes
+ * to be able to translate critical replicated objects
+ * and without that we wouldn't be able to translate them
+ */
+ werr = dsdb_repl_merge_working_schema(ldb,
+ working_schema,
+ resulting_schema);
+ if (!W_ERROR_IS_OK(werr)) {
+ return werr;
+ }
+ }
+
for (schema_list_item = schema_list;
schema_list_item;
schema_list_item=schema_list_next_item) {
@@ -114,6 +205,10 @@ WERROR dsdb_repl_resolve_working_schema(struct ldb_context *ldb,
* Convert the schema from ldb_message format
* (OIDs as OID strings) into schema, using
* the remote prefixMap
+ *
+ * It's not likely, but possible to get the
+ * same object twice and we should keep
+ * the last instance.
*/
werr = dsdb_schema_set_el_from_ldb_msg_dups(ldb,
resulting_schema,
@@ -127,6 +222,8 @@ WERROR dsdb_repl_resolve_working_schema(struct ldb_context *ldb,
win_errstr(werr)));
failed_obj_count++;
} else {
+ DEBUG(8,("Converted object %s into a schema element\n",
+ ldb_dn_get_linearized(object.msg->dn)));
DLIST_REMOVE(schema_list, schema_list_item);
TALLOC_FREE(schema_list_item);
converted_obj_count++;
@@ -136,7 +233,6 @@ WERROR dsdb_repl_resolve_working_schema(struct ldb_context *ldb,
DEBUG(4,("Schema load pass %d: converted %d, %d of %d objects left to be converted.\n",
pass_no, converted_obj_count, failed_obj_count, object_count));
- pass_no++;
/* check if we converted any objects in this pass */
if (converted_obj_count == 0) {
@@ -148,12 +244,22 @@ WERROR dsdb_repl_resolve_working_schema(struct ldb_context *ldb,
return WERR_INTERNAL_ERROR;
}
- /* rebuild indexes */
- ret = dsdb_setup_sorted_accessors(ldb, working_schema);
- if (LDB_SUCCESS != ret) {
- DEBUG(0,("Failed to create schema-cache indexes!\n"));
- return WERR_INTERNAL_ERROR;
+ /*
+ * Don't try to load the schema if there is missing object
+ * _and_ we are on the first pass as some critical objects
+ * might be missing.
+ */
+ if (failed_obj_count == 0 || pass_no > cycle_before_switching) {
+ /* prepare for another cycle */
+ working_schema = resulting_schema;
+
+ ret = dsdb_setup_sorted_accessors(ldb, working_schema);
+ if (LDB_SUCCESS != ret) {
+ DEBUG(0,("Failed to create schema-cache indexes!\n"));
+ return WERR_INTERNAL_ERROR;
+ }
}
+ pass_no++;
}
return WERR_OK;
@@ -200,6 +306,7 @@ WERROR dsdb_repl_make_working_schema(struct ldb_context *ldb,
werr = dsdb_repl_resolve_working_schema(ldb, mem_ctx,
pfm_remote,
+ 0, /* cycle_before_switching */
working_schema,
working_schema,
object_count,