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-rw-r--r--source4/lib/ldb/include/ldb_module.h3
-rw-r--r--source4/lib/ldb/ldb_tdb/ldb_tdb.c8
2 files changed, 11 insertions, 0 deletions
diff --git a/source4/lib/ldb/include/ldb_module.h b/source4/lib/ldb/include/ldb_module.h
index a793525b7c..0f2a080763 100644
--- a/source4/lib/ldb/include/ldb_module.h
+++ b/source4/lib/ldb/include/ldb_module.h
@@ -49,6 +49,9 @@ struct ldb_module;
/* attribute has failed access check and must not be exposed */
#define LDB_FLAG_INTERNAL_INACCESSIBLE_ATTRIBUTE 0x40
+/* force single value checking on this attribute */
+#define LDB_FLAG_INTERNAL_FORCE_SINGLE_VALUE_CHECK 0x80
+
/*
these function pointers define the operations that a ldb module can intercept
diff --git a/source4/lib/ldb/ldb_tdb/ldb_tdb.c b/source4/lib/ldb/ldb_tdb/ldb_tdb.c
index 5c1dd1bdce..831361c547 100644
--- a/source4/lib/ldb/ldb_tdb/ldb_tdb.c
+++ b/source4/lib/ldb/ldb_tdb/ldb_tdb.c
@@ -284,6 +284,14 @@ static bool ldb_tdb_single_valued(const struct ldb_schema_attribute *a,
{
if (!a) return false;
if (el != NULL) {
+ if (el->flags & LDB_FLAG_INTERNAL_FORCE_SINGLE_VALUE_CHECK) {
+ /* override from a ldb module, for example
+ used for the description field, which is
+ marked multi-valued in the schema but which
+ should not actually accept multiple
+ values */
+ return true;
+ }
if (el->flags & LDB_FLAG_INTERNAL_DISABLE_SINGLE_VALUE_CHECK) {
/* override from a ldb module, for example used for
deleted linked attribute entries */