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-rwxr-xr-xsrc/vpp-api/vapi/vapi_c_gen.py2
-rwxr-xr-xsrc/vpp-api/vapi/vapi_cpp_gen.py2
-rw-r--r--src/vpp-api/vapi/vapi_json_parser.py4
3 files changed, 4 insertions, 4 deletions
diff --git a/src/vpp-api/vapi/vapi_c_gen.py b/src/vpp-api/vapi/vapi_c_gen.py
index 9a285eb98ad..330bd92ef8f 100755
--- a/src/vpp-api/vapi/vapi_c_gen.py
+++ b/src/vpp-api/vapi/vapi_c_gen.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python2
+#!/usr/bin/env python3
import argparse
import os
diff --git a/src/vpp-api/vapi/vapi_cpp_gen.py b/src/vpp-api/vapi/vapi_cpp_gen.py
index c08993dc918..c6aa009cbb9 100755
--- a/src/vpp-api/vapi/vapi_cpp_gen.py
+++ b/src/vpp-api/vapi/vapi_cpp_gen.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python2
+#!/usr/bin/env python3
import argparse
import os
diff --git a/src/vpp-api/vapi/vapi_json_parser.py b/src/vpp-api/vapi/vapi_json_parser.py
index 98143e26756..2a03bd04c03 100644
--- a/src/vpp-api/vapi/vapi_json_parser.py
+++ b/src/vpp-api/vapi/vapi_json_parser.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python2
+#!/usr/bin/env python3
import json
@@ -395,7 +395,7 @@ class JsonParser(object):
self.types[type_.name] = type_
self.types_by_json[path].append(type_)
self.logger.debug("Parsed type: %s" % type_)
- for name, body in j['aliases'].iteritems():
+ for name, body in j['aliases'].items():
if name in self.aliases:
progress = progress + 1
continue
ef='#n176'>176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 
/*
 * Copyright (c) 2015 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 <vlib/vlib.h>
#include <vnet/vnet.h>
#include <vppinfra/error.h>

#include <vnet/lawful-intercept/lawful_intercept.h>

#include <vppinfra/error.h>
#include <vppinfra/elog.h>

vlib_node_registration_t li_hit_node;

typedef struct
{
  u32 next_index;
} li_hit_trace_t;

/* packet trace format function */
static u8 *
format_li_hit_trace (u8 * s, va_list * args)
{
  CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
  CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
  li_hit_trace_t *t = va_arg (*args, li_hit_trace_t *);

  s = format (s, "LI_HIT: next index %d", t->next_index);

  return s;
}

vlib_node_registration_t li_hit_node;

#define foreach_li_hit_error                                    \
_(HITS, "LI packets processed")                                 \
_(NO_COLLECTOR, "No collector configured")                      \
_(BUFFER_ALLOCATION_FAILURE, "Buffer allocation failure")

typedef enum
{
#define _(sym,str) LI_HIT_ERROR_##sym,
  foreach_li_hit_error
#undef _
    LI_HIT_N_ERROR,
} li_hit_error_t;

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

typedef enum
{
  LI_HIT_NEXT_ETHERNET,
  LI_HIT_N_NEXT,
} li_hit_next_t;

static uword
li_hit_node_fn (vlib_main_t * vm,
		vlib_node_runtime_t * node, vlib_frame_t * frame)
{
  u32 n_left_from, *from, *to_next;
  li_hit_next_t next_index;
  vlib_frame_t *int_frame = 0;
  u32 *to_int_next = 0;
  li_main_t *lm = &li_main;

  from = vlib_frame_vector_args (frame);
  n_left_from = frame->n_vectors;
  next_index = node->cached_next_index;

  if (PREDICT_FALSE (vec_len (lm->collectors) == 0))
    {
      vlib_node_increment_counter (vm, li_hit_node.index,
				   LI_HIT_ERROR_NO_COLLECTOR, n_left_from);
    }
  else
    {
      /* The intercept frame... */
      int_frame = vlib_get_frame_to_node (vm, ip4_lookup_node.index);
      to_int_next = vlib_frame_vector_args (int_frame);
    }

  while (n_left_from > 0)
    {
      u32 n_left_to_next;

      vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);

#if 0
      while (n_left_from >= 4 && n_left_to_next >= 2)
	{
	  u32 next0 = LI_HIT_NEXT_INTERFACE_OUTPUT;
	  u32 next1 = LI_HIT_NEXT_INTERFACE_OUTPUT;
	  u32 sw_if_index0, sw_if_index1;
	  u8 tmp0[6], tmp1[6];
	  ethernet_header_t *en0, *en1;
	  u32 bi0, bi1;
	  vlib_buffer_t *b0, *b1;

	  /* Prefetch next iteration. */
	  {
	    vlib_buffer_t *p2, *p3;

	    p2 = vlib_get_buffer (vm, from[2]);
	    p3 = vlib_get_buffer (vm, from[3]);

	    vlib_prefetch_buffer_header (p2, LOAD);
	    vlib_prefetch_buffer_header (p3, LOAD);

	    CLIB_PREFETCH (p2->data, CLIB_CACHE_LINE_BYTES, STORE);
	    CLIB_PREFETCH (p3->data, CLIB_CACHE_LINE_BYTES, STORE);
	  }

	  /* speculatively enqueue b0 and b1 to the current next frame */
	  to_next[0] = bi0 = from[0];
	  to_next[1] = bi1 = from[1];
	  from += 2;
	  to_next += 2;
	  n_left_from -= 2;
	  n_left_to_next -= 2;

	  b0 = vlib_get_buffer (vm, bi0);
	  b1 = vlib_get_buffer (vm, bi1);

	  /* $$$$$ Dual loop: process 2 x packets here $$$$$ */
	  ASSERT (b0->current_data == 0);
	  ASSERT (b1->current_data == 0);

	  en0 = vlib_buffer_get_current (b0);
	  en1 = vlib_buffer_get_current (b1);

	  sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX];
	  sw_if_index1 = vnet_buffer (b1)->sw_if_index[VLIB_RX];

	  /* Send pkt back out the RX interface */
	  vnet_buffer (b0)->sw_if_index[VLIB_TX] = sw_if_index0;
	  vnet_buffer (b1)->sw_if_index[VLIB_TX] = sw_if_index1;

	  /* $$$$$ End of processing 2 x packets $$$$$ */

	  if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)))
	    {
	      if (b0->flags & VLIB_BUFFER_IS_TRACED)
		{
		  li_hit_trace_t *t =
		    vlib_add_trace (vm, node, b0, sizeof (*t));
		  t->sw_if_index = sw_if_index0;
		  t->next_index = next0;
		}
	      if (b1->flags & VLIB_BUFFER_IS_TRACED)
		{
		  li_hit_trace_t *t =
		    vlib_add_trace (vm, node, b1, sizeof (*t));
		  t->sw_if_index = sw_if_index1;
		  t->next_index = next1;
		}
	    }

	  /* verify speculative enqueues, maybe switch current next frame */
	  vlib_validate_buffer_enqueue_x2 (vm, node, next_index,
					   to_next, n_left_to_next,
					   bi0, bi1, next0, next1);
	}
#endif /* $$$ dual-loop off */

      while (n_left_from > 0 && n_left_to_next > 0)
	{
	  u32 bi0;
	  vlib_buffer_t *b0;
	  vlib_buffer_t *c0;
	  ip4_udp_header_t *iu0;
	  ip4_header_t *ip0;
	  udp_header_t *udp0;
	  u32 next0 = LI_HIT_NEXT_ETHERNET;

	  /* 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);
	  if (PREDICT_TRUE (to_int_next != 0))
	    {
	      /* Make an intercept copy. This can fail. */
	      c0 = vlib_buffer_copy (vm, b0);

	      if (PREDICT_FALSE (c0 == 0))
		{
		  vlib_node_increment_counter
		    (vm, node->node_index,
		     LI_HIT_ERROR_BUFFER_ALLOCATION_FAILURE, 1);
		  goto skip;
		}

	      vlib_buffer_advance (c0, -sizeof (*iu0));

	      iu0 = vlib_buffer_get_current (c0);
	      ip0 = &iu0->ip4;

	      ip0->ip_version_and_header_length = 0x45;
	      ip0->ttl = 254;
	      ip0->protocol = IP_PROTOCOL_UDP;

	      ip0->src_address.as_u32 = lm->src_addrs[0].as_u32;
	      ip0->dst_address.as_u32 = lm->collectors[0].as_u32;
	      ip0->length = vlib_buffer_length_in_chain (vm, c0);
	      ip0->checksum = ip4_header_checksum (ip0);

	      udp0 = &iu0->udp;
	      udp0->src_port = udp0->dst_port =
		clib_host_to_net_u16 (lm->ports[0]);
	      udp0->checksum = 0;
	      udp0->length =
		clib_net_to_host_u16 (vlib_buffer_length_in_chain (vm, b0));

	      to_int_next[0] = vlib_get_buffer_index (vm, c0);
	      to_int_next++;
	    }

	skip:
	  if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)
			     && (b0->flags & VLIB_BUFFER_IS_TRACED)))
	    {
	      li_hit_trace_t *t = vlib_add_trace (vm, node, b0, sizeof (*t));
	      t->next_index = next0;
	    }

	  /* 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);
    }

  if (int_frame)
    {
      int_frame->n_vectors = frame->n_vectors;
      vlib_put_frame_to_node (vm, ip4_lookup_node.index, int_frame);
    }

  vlib_node_increment_counter (vm, li_hit_node.index,
			       LI_HIT_ERROR_HITS, frame->n_vectors);
  return frame->n_vectors;
}

/* *INDENT-OFF* */
VLIB_REGISTER_NODE (li_hit_node) = {
  .function = li_hit_node_fn,
  .name = "li-hit",
  .vector_size = sizeof (u32),
  .format_trace = format_li_hit_trace,
  .type = VLIB_NODE_TYPE_INTERNAL,

  .n_errors = ARRAY_LEN(li_hit_error_strings),
  .error_strings = li_hit_error_strings,

  .n_next_nodes = LI_HIT_N_NEXT,

  /* edit / add dispositions here */
  .next_nodes = {
        [LI_HIT_NEXT_ETHERNET] = "ethernet-input-not-l2",
  },
};
/* *INDENT-ON* */

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