+/**
+ * Buffer Flags
+ */
+#define foreach_vlib_buffer_flag \
+ _( 0, NON_DEFAULT_FREELIST, "non-default-fl") \
+ _( 1, IS_TRACED, 0) \
+ _( 2, NEXT_PRESENT, 0) \
+ _( 3, TOTAL_LENGTH_VALID, 0) \
+ _( 4, EXT_HDR_VALID, "ext-hdr-valid")
+
+/* NOTE: only buffer generic flags should be defined here, please consider
+ using user flags. i.e. src/vnet/buffer.h */
+
+enum
+{
+#define _(bit, name, v) VLIB_BUFFER_##name = (1 << (bit)),
+ foreach_vlib_buffer_flag
+#undef _
+};
+
+enum
+{
+#define _(bit, name, v) VLIB_BUFFER_LOG2_##name = (bit),
+ foreach_vlib_buffer_flag
+#undef _
+};
+
+ /* User defined buffer flags. */
+#define LOG2_VLIB_BUFFER_FLAG_USER(n) (32 - (n))
+#define VLIB_BUFFER_FLAG_USER(n) (1 << LOG2_VLIB_BUFFER_FLAG_USER(n))
+