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-rw-r--r--source4/dsdb/samdb/ldb_modules/descriptor.c6
-rw-r--r--source4/dsdb/samdb/ldb_modules/objectclass.c8
-rw-r--r--source4/dsdb/samdb/ldb_modules/schema.c25
3 files changed, 29 insertions, 10 deletions
diff --git a/source4/dsdb/samdb/ldb_modules/descriptor.c b/source4/dsdb/samdb/ldb_modules/descriptor.c
index 409d08dea97..47207db2014 100644
--- a/source4/dsdb/samdb/ldb_modules/descriptor.c
+++ b/source4/dsdb/samdb/ldb_modules/descriptor.c
@@ -542,7 +542,8 @@ static int descriptor_add(struct ldb_module *module, struct ldb_request *req)
return ldb_operr(ldb);
}
- objectclass = get_last_structural_class(schema, objectclass_element, req);
+ objectclass = get_last_structural_class(schema, objectclass_element,
+ false);
if (objectclass == NULL) {
return ldb_operr(ldb);
}
@@ -660,7 +661,8 @@ static int descriptor_modify(struct ldb_module *module, struct ldb_request *req)
return ldb_operr(ldb);
}
- objectclass = get_last_structural_class(schema, objectclass_element, req);
+ objectclass = get_last_structural_class(schema, objectclass_element,
+ false);
if (objectclass == NULL) {
return ldb_operr(ldb);
}
diff --git a/source4/dsdb/samdb/ldb_modules/objectclass.c b/source4/dsdb/samdb/ldb_modules/objectclass.c
index b66b4d7a5f4..0d75e5ff897 100644
--- a/source4/dsdb/samdb/ldb_modules/objectclass.c
+++ b/source4/dsdb/samdb/ldb_modules/objectclass.c
@@ -637,7 +637,8 @@ static int objectclass_do_add(struct oc_context *ac)
/* Make sure its valid to add an object of this type */
objectclass = get_last_structural_class(ac->schema,
- objectclass_element, ac->req);
+ objectclass_element,
+ true);
if(objectclass == NULL) {
ldb_asprintf_errstring(ldb,
"Failed to find a structural class for %s",
@@ -1112,7 +1113,7 @@ static int objectclass_do_mod(struct oc_context *ac)
/* Get the new top-most structural object class */
objectclass = get_last_structural_class(ac->schema, oc_el_entry,
- ac->req);
+ false);
if (objectclass == NULL) {
ldb_set_errstring(ldb,
"objectclass: cannot delete all structural objectclasses!");
@@ -1312,7 +1313,8 @@ static int objectclass_do_rename2(struct oc_context *ac)
/* existing entry without a valid object class? */
return ldb_operr(ldb);
}
- objectclass = get_last_structural_class(ac->schema, oc_el_entry, ac->req);
+ objectclass = get_last_structural_class(ac->schema, oc_el_entry,
+ false);
if (objectclass == NULL) {
/* existing entry without a valid object class? */
return ldb_operr(ldb);
diff --git a/source4/dsdb/samdb/ldb_modules/schema.c b/source4/dsdb/samdb/ldb_modules/schema.c
index 51c6a658d6e..f483fd386e3 100644
--- a/source4/dsdb/samdb/ldb_modules/schema.c
+++ b/source4/dsdb/samdb/ldb_modules/schema.c
@@ -29,14 +29,29 @@
#include "libcli/security/security.h"
#include "dsdb/samdb/ldb_modules/schema.h"
-
-const struct dsdb_class * get_last_structural_class(const struct dsdb_schema *schema,const struct ldb_message_element *element,
- struct ldb_request *parent)
+/*
+ * This function determines the (last) structural or 88 object class of a passed
+ * "objectClass" attribute.
+ * Without schema this does not work and hence NULL is returned. If the
+ * "objectClass" attribute has already been sorted then only a check on the
+ * last value is necessary (MS-ADTS 3.1.1.1.4)
+ */
+const struct dsdb_class *get_last_structural_class(const struct dsdb_schema *schema,
+ const struct ldb_message_element *element,
+ bool sorted)
{
const struct dsdb_class *last_class = NULL;
- unsigned int i;
+ unsigned int i = 0;
+
+ if (schema == NULL) {
+ return NULL;
+ }
+
+ if (sorted && (element->num_values > 1)) {
+ i = element->num_values - 1;
+ }
- for (i = 0; i < element->num_values; i++){
+ for (; i < element->num_values; i++){
const struct dsdb_class *tmp_class = dsdb_class_by_lDAPDisplayName_ldb_val(schema, &element->values[i]);
if(tmp_class == NULL) {