1 files changed, 0 insertions, 95 deletions
diff --git a/hicn-plugin/src/host_stack/utils.h b/hicn-plugin/src/host_stack/utils.h
deleted file mode 100644
index 67568d568..000000000
--- a/hicn-plugin/src/host_stack/utils.h
+++ /dev/null
@@ -1,95 +0,0 @@
-/*
- * Copyright (c) 2020 Cisco and/or its affiliates.
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-/* Compute TCP checksum in software when offloading is disabled for a connection */
-
-#ifndef __HICN_HS_UTILS_H__
-#define __HICN_HS_UTILS_H__
-
-#include <vnet/ip/ip4.h>
-#include <vnet/ip/ip6.h>
-#include <vnet/tcp/tcp.h>
-
-always_inline u16
-ip6_tcp_compute_checksum_custom (vlib_main_t * vm, vlib_buffer_t * p0,
-				 ip46_address_t * src, ip46_address_t * dst)
-{
-  ip_csum_t sum0;
-  u16 payload_length_host_byte_order;
-  u32 i;
-
-  /* Initialize checksum with ip header. */
-  sum0 = clib_host_to_net_u16 (vlib_buffer_length_in_chain (vm, p0)) +
-    clib_host_to_net_u16 (IP_PROTOCOL_TCP);
-  payload_length_host_byte_order = vlib_buffer_length_in_chain (vm, p0);
-
-  for (i = 0; i < ARRAY_LEN (src->ip6.as_uword); i++)
-    {
-      sum0 = ip_csum_with_carry
-	(sum0, clib_mem_unaligned (&src->ip6.as_uword[i], uword));
-      sum0 = ip_csum_with_carry
-	(sum0, clib_mem_unaligned (&dst->ip6.as_uword[i], uword));
-    }
-
-  return ip_calculate_l4_checksum (vm, p0, sum0,
-				   payload_length_host_byte_order, NULL, 0,
-				   NULL);
-}
-
-always_inline u16
-ip4_tcp_compute_checksum_custom (vlib_main_t * vm, vlib_buffer_t * p0,
-				 ip46_address_t * src, ip46_address_t * dst)
-{
-  ip_csum_t sum0;
-  u32 payload_length_host_byte_order;
-
-  payload_length_host_byte_order = vlib_buffer_length_in_chain (vm, p0);
-  sum0 =
-    clib_host_to_net_u32 (payload_length_host_byte_order +
-			  (IP_PROTOCOL_TCP << 16));
-
-  sum0 = ip_csum_with_carry (sum0, clib_mem_unaligned (&src->ip4, u32));
-  sum0 = ip_csum_with_carry (sum0, clib_mem_unaligned (&dst->ip4, u32));
-
-  return ip_calculate_l4_checksum (vm, p0, sum0,
-				   payload_length_host_byte_order, NULL, 0,
-				   NULL);
-}
-
-always_inline u16
-hicn_hs_compute_checksum (hicn_hs_ctx_t * ctx, vlib_buffer_t * b)
-{
-  u16 checksum = 0;
-  if (PREDICT_FALSE (ctx->cfg_flags & HICN_HS_CFG_F_NO_CSUM_OFFLOAD))
-    {
-      hicn_hs_worker_t *wrk = hicn_hs_get_worker_by_context (ctx);
-      vlib_main_t *vm = wrk->vm;
-      ip46_address_t local_ip = {0};
-
-      if (ctx->c_is_ip4)
-	checksum = ip4_tcp_compute_checksum_custom
-	  (vm, b, &local_ip, &ctx->c_rmt_ip);
-      else
-	checksum = ip6_tcp_compute_checksum_custom
-	  (vm, b, &local_ip, &ctx->c_rmt_ip);
-    }
-  else
-    {
-      b->flags |= VNET_BUFFER_F_OFFLOAD_TCP_CKSUM;
-    }
-  return checksum;
-}
-
-#endif /* __HICN_HS_UTILS_H__ */