-/**
- * @brief Function doing End processing with PSP
- */
-static_always_inline void
-end_psp_srh_processing (vlib_node_runtime_t * node,
- vlib_buffer_t * b0,
- ip6_header_t * ip0,
- ip6_ext_header_t * prev0,
- ip6_sr_header_t * sr0,
- ip6_sr_localsid_t * ls0, u32 * next0)
-{
- u32 new_l0, sr_len;
- u64 *copy_dst0, *copy_src0;
- u32 copy_len_u64s0 = 0;
- int i;
-
- if (PREDICT_TRUE (sr0->type == ROUTING_HEADER_TYPE_SR))
- {
- if (PREDICT_TRUE (sr0->segments_left == 1))
- {
- 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];
-
- for (i = copy_len_u64s0 - 1; i >= 0; i--)
- {
- copy_dst0[i] = copy_src0[i];
- }
-
- if (ls0->behavior == SR_BEHAVIOR_X)
- {
- vnet_buffer (b0)->ip.adj_index[VLIB_TX] = ls0->nh_adj;
- *next0 = SR_LOCALSID_NEXT_IP6_REWRITE;
- }
- return;
- }
- }
- /* Error. Routing header of type != SR */
- *next0 = SR_LOCALSID_NEXT_ERROR;
- b0->error = node->errors[SR_LOCALSID_ERROR_NO_PSP];
-}
-