+ u32 new_l0, sr_len;
+ u64 *copy_dst0, *copy_src0;
+ u32 copy_len_u64s0 = 0;
+
+ ip0->dst_address.as_u64[0] = sr0->segments->as_u64[0];
+ ip0->dst_address.as_u64[1] = sr0->segments->as_u64[1];
+
+ /* Remove the SRH taking care of the rest of IPv6 ext header */
+ if (prev0)
+ prev0->next_hdr = sr0->protocol;
+ else
+ ip0->protocol = sr0->protocol;
+
+ sr_len = ip6_ext_header_len (sr0);
+ vlib_buffer_advance (b0, sr_len);
+ new_l0 = clib_net_to_host_u16 (ip0->payload_length) - sr_len;
+ ip0->payload_length = clib_host_to_net_u16 (new_l0);
+ copy_src0 = (u64 *) ip0;
+ copy_dst0 = copy_src0 + (sr0->length + 1);
+ /* number of 8 octet units to copy
+ * By default in absence of extension headers it is equal to length of ip6 header
+ * With extension headers it number of 8 octet units of ext headers preceding
+ * SR header
+ */
+ copy_len_u64s0 =
+ (((u8 *) sr0 - (u8 *) ip0) - sizeof (ip6_header_t)) >> 3;
+ copy_dst0[4 + copy_len_u64s0] = copy_src0[4 + copy_len_u64s0];
+ copy_dst0[3 + copy_len_u64s0] = copy_src0[3 + copy_len_u64s0];
+ copy_dst0[2 + copy_len_u64s0] = copy_src0[2 + copy_len_u64s0];
+ copy_dst0[1 + copy_len_u64s0] = copy_src0[1 + copy_len_u64s0];
+ copy_dst0[0 + copy_len_u64s0] = copy_src0[0 + copy_len_u64s0];
+
+ int i;
+ for (i = copy_len_u64s0 - 1; i >= 0; i--)