nat: move dslite to separate sub-plugin

Type: refactor
Change-Id: If3d9f16f3a06c10b354f1eef674e8db5f3c44de7
Signed-off-by: Ole Troan <ot@cisco.com>

1 files changed, 0 insertions, 142 deletions

diff --git a/src/plugins/nat/dslite_ce_decap.c b/src/plugins/nat/dslite_ce_decap.c
deleted file mode 100644
index 77b80ea0f45..00000000000
--- a/src/plugins/nat/dslite_ce_decap.c
+++ /dev/null
@@ -1,142 +0,0 @@
-/*
- * Copyright (c) 2018 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.
- */
-#include <nat/dslite.h>
-#include <nat/nat_inlines.h>
-
-typedef enum
-{
-  DSLITE_CE_DECAP_NEXT_IP4_LOOKUP,
-  DSLITE_IN2OUT_NEXT_IP6_ICMP,
-  DSLITE_CE_DECAP_NEXT_DROP,
-  DSLITE_CE_DECAP_N_NEXT,
-} dslite_ce_decap_next_t;
-
-static char *dslite_ce_decap_error_strings[] = {
-#define _(sym,string) string,
-  foreach_dslite_error
-#undef _
-};
-
-VLIB_NODE_FN (dslite_ce_decap_node) (vlib_main_t * vm,
-				     vlib_node_runtime_t * node,
-				     vlib_frame_t * frame)
-{
-  u32 n_left_from, *from, *to_next;
-  dslite_ce_decap_next_t next_index;
-
-  from = vlib_frame_vector_args (frame);
-  n_left_from = frame->n_vectors;
-  next_index = node->cached_next_index;
-
-  while (n_left_from > 0)
-    {
-      u32 n_left_to_next;
-
-      vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
-
-      while (n_left_from > 0 && n_left_to_next > 0)
-	{
-	  u32 bi0;
-	  vlib_buffer_t *b0;
-	  u32 next0 = DSLITE_CE_DECAP_NEXT_IP4_LOOKUP;
-	  u8 error0 = DSLITE_ERROR_CE_DECAP;
-	  ip4_header_t *ip40;
-	  ip6_header_t *ip60;
-	  u32 proto0;
-
-	  /* speculatively enqueue b0 to the current next frame */
-	  bi0 = from[0];
-	  to_next[0] = bi0;
-	  from += 1;
-	  to_next += 1;
-	  n_left_from -= 1;
-	  n_left_to_next -= 1;
-
-	  b0 = vlib_get_buffer (vm, bi0);
-	  ip60 = vlib_buffer_get_current (b0);
-
-	  if (PREDICT_FALSE (ip60->protocol != IP_PROTOCOL_IP_IN_IP))
-	    {
-	      if (ip60->protocol == IP_PROTOCOL_ICMP6)
-		{
-		  next0 = DSLITE_IN2OUT_NEXT_IP6_ICMP;
-		  goto trace0;
-		}
-	      error0 = DSLITE_ERROR_BAD_IP6_PROTOCOL;
-	      next0 = DSLITE_CE_DECAP_NEXT_DROP;
-	      goto trace0;
-	    }
-
-	  ip40 = vlib_buffer_get_current (b0) + sizeof (ip6_header_t);
-	  proto0 = ip_proto_to_snat_proto (ip40->protocol);
-
-	  if (PREDICT_FALSE (proto0 == ~0))
-	    {
-	      error0 = DSLITE_ERROR_UNSUPPORTED_PROTOCOL;
-	      next0 = DSLITE_CE_DECAP_NEXT_DROP;
-	      goto trace0;
-	    }
-
-	  ip40->tos =
-	    (clib_net_to_host_u32
-	     (ip60->ip_version_traffic_class_and_flow_label) & 0x0ff00000) >>
-	    20;
-	  vlib_buffer_advance (b0, sizeof (ip6_header_t));
-
-	trace0:
-	  if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)
-			     && (b0->flags & VLIB_BUFFER_IS_TRACED)))
-	    {
-	      dslite_trace_t *t = vlib_add_trace (vm, node, b0, sizeof (*t));
-	      t->next_index = next0;
-	    }
-
-	  b0->error = node->errors[error0];
-
-	  /* verify speculative enqueue, maybe switch current next frame */
-	  vlib_validate_buffer_enqueue_x1 (vm, node, next_index, to_next,
-					   n_left_to_next, bi0, next0);
-	}
-      vlib_put_next_frame (vm, node, next_index, n_left_to_next);
-    }
-
-  return frame->n_vectors;
-}
-
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (dslite_ce_decap_node) = {
-  .name = "dslite-ce-decap",
-  .vector_size = sizeof (u32),
-  .format_trace = format_dslite_ce_trace,
-  .type = VLIB_NODE_TYPE_INTERNAL,
-  .n_errors = ARRAY_LEN (dslite_ce_decap_error_strings),
-  .error_strings = dslite_ce_decap_error_strings,
-  .n_next_nodes = DSLITE_CE_DECAP_N_NEXT,
-  /* edit / add dispositions here */
-  .next_nodes = {
-    [DSLITE_CE_DECAP_NEXT_DROP] = "error-drop",
-    [DSLITE_CE_DECAP_NEXT_IP4_LOOKUP] = "ip4-lookup",
-    [DSLITE_IN2OUT_NEXT_IP6_ICMP] = "ip6-icmp-input",
-  },
-};
-/* *INDENT-ON* */
-
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */