aboutsummaryrefslogtreecommitdiffstats
path: root/docs/report
diff options
context:
space:
mode:
authorTibor Frank <tifrank@cisco.com>2020-10-30 10:54:22 +0100
committerTibor Frank <tifrank@cisco.com>2020-10-30 10:54:22 +0100
commite2e037d5965dabf8b274ed0fe67fb89d5d324d0b (patch)
tree647794717726e6dbe3c55e921d48f84d537458f5 /docs/report
parent023fa41e51c966a1956bda6b915ffd894ff10e84 (diff)
Report: Add data
Change-Id: Iaa85aaa5179136281ab05325efcf0e91c234a774 Signed-off-by: Tibor Frank <tifrank@cisco.com>
Diffstat (limited to 'docs/report')
0 files changed, 0 insertions, 0 deletions
#0066bb; font-weight: bold } /* Name.Function */ .highlight .nl { color: #336699; font-style: italic } /* Name.Label */ .highlight .nn { color: #bb0066; font-weight: bold } /* Name.Namespace */ .highlight .py { color: #336699; font-weight: bold } /* Name.Property */ .highlight .nt { color: #bb0066; font-weight: bold } /* Name.Tag */ .highlight .nv { color: #336699 } /* Name.Variable */ .highlight .ow { color: #008800 } /* Operator.Word */ .highlight .w { color: #bbbbbb } /* Text.Whitespace */ .highlight .mb { color: #0000DD; font-weight: bold } /* Literal.Number.Bin */ .highlight .mf { color: #0000DD; font-weight: bold } /* Literal.Number.Float */ .highlight .mh { color: #0000DD; font-weight: bold } /* Literal.Number.Hex */ .highlight .mi { color: #0000DD; font-weight: bold } /* Literal.Number.Integer */ .highlight .mo { color: #0000DD; font-weight: bold } /* Literal.Number.Oct */ .highlight .sa { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Affix */ .highlight .sb { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Backtick */ .highlight .sc { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Char */ .highlight .dl { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Delimiter */ .highlight .sd { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Doc */ .highlight .s2 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Double */ .highlight .se { color: #0044dd; background-color: #fff0f0 } /* Literal.String.Escape */ .highlight .sh { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Heredoc */ .highlight .si { color: #3333bb; background-color: #fff0f0 } /* Literal.String.Interpol */ .highlight .sx { color: #22bb22; background-color: #f0fff0 } /* Literal.String.Other */ .highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */ .highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */ .highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */ .highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */ .highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */ .highlight .vc { color: #336699 } /* Name.Variable.Class */ .highlight .vg { color: #dd7700 } /* Name.Variable.Global */ .highlight .vi { color: #3333bb } /* Name.Variable.Instance */ .highlight .vm { color: #336699 } /* Name.Variable.Magic */ .highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */ } 
/*
 * 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>

vlib_node_registration_t dslite_ce_encap_node;

typedef enum
{
  DSLITE_CE_ENCAP_NEXT_IP6_LOOKUP,
  DSLITE_CE_ENCAP_NEXT_DROP,
  DSLITE_CE_ENCAP_N_NEXT,
} dslite_ce_encap_next_t;

static char *dslite_ce_encap_error_strings[] = {
#define _(sym,string) string,
  foreach_dslite_error
#undef _
};

static uword
dslite_ce_encap_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node,
			 vlib_frame_t * frame)
{
  u32 n_left_from, *from, *to_next;
  dslite_ce_encap_next_t next_index;
  dslite_main_t *dm = &dslite_main;

  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_ENCAP_NEXT_IP6_LOOKUP;
	  u8 error0 = DSLITE_ERROR_CE_ENCAP;
	  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);
	  ip40 = vlib_buffer_get_current (b0);
	  proto0 = ip_proto_to_snat_proto (ip40->protocol);

	  if (PREDICT_FALSE (proto0 == ~0))
	    {
	      error0 = DSLITE_ERROR_UNSUPPORTED_PROTOCOL;
	      next0 = DSLITE_CE_ENCAP_NEXT_DROP;
	      goto trace0;
	    }

	  /* Construct IPv6 header */
	  vlib_buffer_advance (b0, -(sizeof (ip6_header_t)));
	  ip60 = vlib_buffer_get_current (b0);
	  ip60->ip_version_traffic_class_and_flow_label =
	    clib_host_to_net_u32 ((6 << 28) + (ip40->tos << 20));
	  ip60->payload_length = ip40->length;
	  ip60->protocol = IP_PROTOCOL_IP_IN_IP;
	  ip60->hop_limit = ip40->ttl;
	  ip60->dst_address.as_u64[0] = dm->aftr_ip6_addr.as_u64[0];
	  ip60->dst_address.as_u64[1] = dm->aftr_ip6_addr.as_u64[1];
	  ip60->src_address.as_u64[0] = dm->b4_ip6_addr.as_u64[0];
	  ip60->src_address.as_u64[1] = dm->b4_ip6_addr.as_u64[1];

	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_encap_node) = {
  .function = dslite_ce_encap_node_fn,
  .name = "dslite-ce-encap",
  .vector_size = sizeof (u32),
  .format_trace = format_dslite_ce_trace,
  .type = VLIB_NODE_TYPE_INTERNAL,
  .n_errors = ARRAY_LEN (dslite_ce_encap_error_strings),
  .error_strings = dslite_ce_encap_error_strings,
  .n_next_nodes = DSLITE_CE_ENCAP_N_NEXT,
  /* edit / add dispositions here */
  .next_nodes = {
    [DSLITE_CE_ENCAP_NEXT_DROP] = "error-drop",
    [DSLITE_CE_ENCAP_NEXT_IP6_LOOKUP] = "ip6-lookup",
  },
};
/* *INDENT-ON* */

VLIB_NODE_FUNCTION_MULTIARCH (dslite_ce_encap_node, dslite_ce_encap_node_fn);

/*
 * fd.io coding-style-patch-verification: ON
 *
 * Local Variables:
 * eval: (c-set-style "gnu")
 * End:
 */