1 files changed, 33 insertions, 0 deletions
diff --git a/source3/groupdb/mapping.h b/source3/groupdb/mapping.h
new file mode 100644
index 0000000000..c37ae84b87
--- /dev/null
+++ b/source3/groupdb/mapping.h
@@ -0,0 +1,33 @@
+#define DATABASE_VERSION_V1 1 /* native byte format. */
+#define DATABASE_VERSION_V2 2 /* le format. */
+
+#define GROUP_PREFIX "UNIXGROUP/"
+#define GROUP_PREFIX_LEN 10
+
+/* Alias memberships are stored reverse, as memberships. The performance
+ * critical operation is to determine the aliases a SID is member of, not
+ * listing alias members. So we store a list of alias SIDs a SID is member of
+ * hanging of the member as key.
+ */
+#define MEMBEROF_PREFIX "MEMBEROF/"
+#define MEMBEROF_PREFIX_LEN 9
+
+/*
+  groupdb mapping backend abstraction
+ */
+struct mapping_backend {
+	bool (*init_group_mapping)(void);
+	bool (*add_mapping_entry)(GROUP_MAP *map, int flag);
+	bool (*get_group_map_from_sid)(DOM_SID sid, GROUP_MAP *map);
+	bool (*get_group_map_from_gid)(gid_t gid, GROUP_MAP *map);
+	bool (*get_group_map_from_ntname)(const char *name, GROUP_MAP *map);
+	bool (*group_map_remove)(const DOM_SID *sid);
+	bool (*enum_group_mapping)(const DOM_SID *domsid, enum lsa_SidType sid_name_use, 
+				   GROUP_MAP **pp_rmap,
+				   size_t *p_num_entries, bool unix_only);
+	NTSTATUS (*one_alias_membership)(const DOM_SID *member,
+					 DOM_SID **sids, size_t *num);
+	NTSTATUS (*add_aliasmem)(const DOM_SID *alias, const DOM_SID *member);
+	NTSTATUS (*del_aliasmem)(const DOM_SID *alias, const DOM_SID *member);
+	NTSTATUS (*enum_aliasmem)(const DOM_SID *alias, DOM_SID **sids, size_t *num);
+};