+always_inline void
+_vnet_fixup_one_header (vnet_rewrite_header_t * h0,
+ u8 * addr, u32 addr_len,
+ u8 * packet0, int clear_first_bit)
+{
+ /* location to write to in the packet */
+ u8 *p0 = packet0 - h0->dst_mcast_offset;
+ u8 *p1 = p0;
+ /* location to write from in the L3 dest address */
+ u8 *a0 = addr + addr_len - h0->dst_mcast_n_bytes;
+
+ clib_memcpy (p0, a0, h0->dst_mcast_n_bytes);
+ if (clear_first_bit)
+ *p1 &= 0x7f;
+}
+
+#define vnet_fixup_one_header(rw0,addr,p0,clear_first_bit) \
+ _vnet_fixup_one_header (&((rw0).rewrite_header), \
+ (u8*)(addr), sizeof((*addr)), \
+ (u8*)(p0), (clear_first_bit))
+