1 files changed, 62 insertions, 0 deletions
diff --git a/lib/ext2fs/ext4_acl.h b/lib/ext2fs/ext4_acl.h
new file mode 100644
index 0000000..8d4d974
--- /dev/null
+++ b/lib/ext2fs/ext4_acl.h
@@ -0,0 +1,62 @@
+/*
+ * Ext4's on-disk acl format.  From linux/fs/ext4/acl.h
+ */
+
+#define EXT4_ACL_VERSION        0x0001
+
+/* 23.2.5 acl_tag_t values */
+
+#define ACL_UNDEFINED_TAG	(0x00)
+#define ACL_USER_OBJ		(0x01)
+#define ACL_USER		(0x02)
+#define ACL_GROUP_OBJ		(0x04)
+#define ACL_GROUP		(0x08)
+#define ACL_MASK		(0x10)
+#define ACL_OTHER		(0x20)
+
+/* 23.3.6 acl_type_t values */
+
+#define ACL_TYPE_ACCESS		(0x8000)
+#define ACL_TYPE_DEFAULT	(0x4000)
+
+/* 23.2.7 ACL qualifier constants */
+
+#define ACL_UNDEFINED_ID	((id_t)-1)
+
+typedef struct {
+        __le16          e_tag;
+        __le16          e_perm;
+        __le32          e_id;
+ } ext4_acl_entry;
+ 
+typedef struct {
+        __le16          e_tag;
+        __le16          e_perm;
+} ext4_acl_entry_short;
+
+typedef struct {
+         __le32          a_version;
+} ext4_acl_header;
+
+
+/* Supported ACL a_version fields */
+ #define POSIX_ACL_XATTR_VERSION 0x0002
+
+typedef struct {
+        __le16                  e_tag;
+        __le16                  e_perm;
+        __le32                  e_id;
+} posix_acl_xattr_entry;
+
+typedef struct {
+        __le32                  a_version;
+#if __GNUC_PREREQ (4, 8)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wpedantic"
+#endif
+        posix_acl_xattr_entry   a_entries[0];
+#if __GNUC_PREREQ (4, 8)
+#pragma GCC diagnostic pop
+#endif
+} posix_acl_xattr_header;
+