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path: root/src/plugins/gbp/gbp_endpoint_group.c
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/*
 * gbp.h : Group Based Policy
 *
 * 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 <plugins/gbp/gbp_endpoint_group.h>
#include <plugins/gbp/gbp_endpoint.h>

#include <vnet/dpo/dvr_dpo.h>
#include <vnet/fib/fib_table.h>
#include <vnet/l2/l2_input.h>
#include <vnet/l2/feat_bitmap.h>

/**
 * Pool of GBP endpoint_groups
 */
gbp_endpoint_group_t *gbp_endpoint_group_pool;

/**
 * DB of endpoint_groups
 */
gbp_endpoint_group_db_t gbp_endpoint_group_db;

gbp_endpoint_group_t *
gbp_endpoint_group_find (epg_id_t epg_id)
{
  uword *p;

  p = hash_get (gbp_endpoint_group_db.gepg_hash, epg_id);

  if (NULL != p)
    return (pool_elt_at_index (gbp_endpoint_group_pool, p[0]));

  return (NULL);
}

int
gbp_endpoint_group_add (epg_id_t epg_id,
			u32 bd_id,
			u32 ip4_table_id,
			u32 ip6_table_id, u32 uplink_sw_if_index)
{
  gbp_endpoint_group_t *gepg;

  gepg = gbp_endpoint_group_find (epg_id);

  if (NULL == gepg)
    {
      fib_protocol_t fproto;

      pool_get (gbp_endpoint_group_pool, gepg);
      memset (gepg, 0, sizeof (*gepg));

      gepg->gepg_id = epg_id;
      gepg->gepg_bd = bd_id;
      gepg->gepg_rd[FIB_PROTOCOL_IP4] = ip4_table_id;
      gepg->gepg_rd[FIB_PROTOCOL_IP6] = ip6_table_id;
      gepg->gepg_uplink_sw_if_index = uplink_sw_if_index;

      /*
       * an egress DVR dpo for internal subnets to use when sending
       * on the uplink interface
       */
      FOR_EACH_FIB_IP_PROTOCOL (fproto)
      {
	gepg->gepg_fib_index[fproto] =
	  fib_table_find_or_create_and_lock (fproto,
					     gepg->gepg_rd[fproto],
					     FIB_SOURCE_PLUGIN_HI);

	if (~0 == gepg->gepg_fib_index[fproto])
	  {
	    return (VNET_API_ERROR_NO_SUCH_FIB);
	  }

	dvr_dpo_add_or_lock (uplink_sw_if_index,
			     fib_proto_to_dpo (fproto),
			     &gepg->gepg_dpo[fproto]);
      }

      /*
       * packets direct from the uplink have had policy applied
       */
      l2input_intf_bitmap_enable (gepg->gepg_uplink_sw_if_index,
				  L2INPUT_FEAT_GBP_NULL_CLASSIFY, 1);

      hash_set (gbp_endpoint_group_db.gepg_hash,
		gepg->gepg_id, gepg - gbp_endpoint_group_pool);

    }

  return (0);
}

void
gbp_endpoint_group_delete (epg_id_t epg_id)
{
  gbp_endpoint_group_t *gepg;
  uword *p;

  p = hash_get (gbp_endpoint_group_db.gepg_hash, epg_id);

  if (NULL != p)
    {
      fib_protocol_t fproto;

      gepg = pool_elt_at_index (gbp_endpoint_group_pool, p[0]);

      l2input_intf_bitmap_enable (gepg->gepg_uplink_sw_if_index,
				  L2INPUT_FEAT_GBP_NULL_CLASSIFY, 0);

      FOR_EACH_FIB_IP_PROTOCOL (fproto)
      {
	dpo_reset (&gepg->gepg_dpo[fproto]);
	fib_table_unlock (gepg->gepg_fib_index[fproto],
			  fproto, FIB_SOURCE_PLUGIN_HI);
      }

      hash_unset (gbp_endpoint_group_db.gepg_hash, epg_id);

      pool_put (gbp_endpoint_group_pool, gepg);
    }
}

void
gbp_endpoint_group_walk (gbp_endpoint_group_cb_t cb, void *ctx)
{
  gbp_endpoint_group_t *gbpe;

  /* *INDENT-OFF* */
  pool_foreach(gbpe, gbp_endpoint_group_pool,
  {
    if (!cb(gbpe, ctx))
      break;
  });
  /* *INDENT-ON* */
}

static clib_error_t *
gbp_endpoint_group_cli (vlib_main_t * vm,
			unformat_input_t * input, vlib_cli_command_t * cmd)
{
  vnet_main_t *vnm = vnet_get_main ();
  epg_id_t epg_id = EPG_INVALID;
  u32 uplink_sw_if_index = ~0;
  u32 bd_id = ~0;
  u32 rd_id = ~0;
  u8 add = 1;

  while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
    {
      if (unformat (input, "%U", unformat_vnet_sw_interface,
		    vnm, &uplink_sw_if_index))
	;
      else if (unformat (input, "add"))
	add = 1;
      else if (unformat (input, "del"))
	add = 0;
      else if (unformat (input, "epg %d", &epg_id))
	;
      else if (unformat (input, "bd %d", &bd_id))
	;
      else if (unformat (input, "rd %d", &rd_id))
	;
      else
	break;
    }

  if (EPG_INVALID == epg_id)
    return clib_error_return (0, "EPG-ID must be specified");

  if (add)
    {
      if (~0 == uplink_sw_if_index)
	return clib_error_return (0, "interface must be specified");
      if (~0 == bd_id)
	return clib_error_return (0, "Bridge-domain must be specified");
      if (~0 == rd_id)
	return clib_error_return (0, "route-domain must be specified");

      gbp_endpoint_group_add (epg_id, bd_id, rd_id, rd_id,
			      uplink_sw_if_index);
    }
  else
    gbp_endpoint_group_delete (epg_id);

  return (NULL);
}

/*?
 * Configure a GBP Endpoint Group
 *
 * @cliexpar
 * @cliexstart{set gbp endpoint-group [del] epg <ID> bd <ID> <interface>}
 * @cliexend
 ?*/
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (gbp_endpoint_group_cli_node, static) = {
  .path = "gbp endpoint-group",
  .short_help = "gbp endpoint-group [del] epg <ID> bd <ID> rd <ID> <interface>",
  .function = gbp_endpoint_group_cli,
};

static int
gbp_endpoint_group_show_one (gbp_endpoint_group_t *gepg, void *ctx)
{
  vnet_main_t *vnm = vnet_get_main ();
  vlib_main_t *vm;

  vm = ctx;
  vlib_cli_output (vm, "  %d, bd:%d, ip4:%d ip6:%d uplink:%U",
                   gepg->gepg_id,
                   gepg->gepg_bd,
                   gepg->gepg_rd[FIB_PROTOCOL_IP4],
                   gepg->gepg_rd[FIB_PROTOCOL_IP6],
		   format_vnet_sw_if_index_name, vnm, gepg->gepg_uplink_sw_if_index);

  return (1);
}

static clib_error_t *
gbp_endpoint_group_show (vlib_main_t * vm,
		   unformat_input_t * input, vlib_cli_command_t * cmd)
{
  vlib_cli_output (vm, "Endpoint-Groups:");
  gbp_endpoint_group_walk (gbp_endpoint_group_show_one, vm);

  return (NULL);
}


/*?
 * Show Group Based Policy Endpoint_Groups and derived information
 *
 * @cliexpar
 * @cliexstart{show gbp endpoint_group}
 * @cliexend
 ?*/
/* *INDENT-OFF* */
VLIB_CLI_COMMAND (gbp_endpoint_group_show_node, static) = {
  .path = "show gbp endpoint-group",
  .short_help = "show gbp endpoint-group\n",
  .function = gbp_endpoint_group_show,
};
/* *INDENT-ON* */

/*
 * fd.io coding-style-patch-verification: ON
 *
 * Local Variables:
 * eval: (c-set-style "gnu")
 * End:
 */
class="n">src, self.pg2.local_ip4) self.assertEqual(pkt[IP].dst, self.pg2.remote_ip4) return pkt[GRE].payload def decap_erspan(self, pkt, session): """ Decapsulate the original payload frame by removing ERSPAN header """ self.assertEqual(pkt[Ether].src, self.pg2.local_mac) self.assertEqual(pkt[Ether].dst, self.pg2.remote_mac) self.assertEqual(pkt[IP].src, self.pg2.local_ip4) self.assertEqual(pkt[IP].dst, self.pg2.remote_ip4) self.assertEqual(pkt[ERSPAN].ver, 1) self.assertEqual(pkt[ERSPAN].vlan, 0) self.assertEqual(pkt[ERSPAN].cos, 0) self.assertEqual(pkt[ERSPAN].en, 3) self.assertEqual(pkt[ERSPAN].t, 0) self.assertEqual(pkt[ERSPAN].session_id, session) self.assertEqual(pkt[ERSPAN].reserved, 0) self.assertEqual(pkt[ERSPAN].index, 0) return pkt[ERSPAN].payload def decap_vxlan(self, pkt): """ Decapsulate the original payload frame by removing VXLAN header """ self.assertEqual(pkt[Ether].src, self.pg2.local_mac) self.assertEqual(pkt[Ether].dst, self.pg2.remote_mac) self.assertEqual(pkt[IP].src, self.pg2.local_ip4) self.assertEqual(pkt[IP].dst, self.pg2.remote_ip4) return pkt[VXLAN].payload def create_stream(self, src_if, packet_sizes, do_dot1=False, bcast=False): pkts = [] dst_if = self.flows[src_if][0] dst_mac = src_if.remote_mac if bcast: dst_mac = "ff:ff:ff:ff:ff:ff" for i in range(0, self.pkts_per_burst): payload = "span test" size = packet_sizes[(i / 2) % len(packet_sizes)] p = (Ether(src=src_if.local_mac, dst=dst_mac) / IP(src=src_if.remote_ip4, dst=dst_if.remote_ip4) / UDP(sport=10000 + src_if.sw_if_index * 1000 + i, dport=1234) / Raw(payload)) if do_dot1: p = self.sub_if.add_dot1_layer(p) self.extend_packet(p, size) pkts.append(p) return pkts def verify_capture(self, cap1, cap2): self.assertEqual(len(cap1), len(cap2), "Different number of sent and mirrored packets :" "%u != %u" % (len(cap1), len(cap2))) pkts1 = [(pkt[Ether] / pkt[IP] / pkt[UDP]) for pkt in cap1] pkts2 = [(pkt[Ether] / pkt[IP] / pkt[UDP]) for pkt in cap2] self.assertEqual(pkts1.sort(), pkts2.sort()) def test_device_span(self): """ SPAN device rx mirror """ # Create bi-directional cross-connects between pg0 and pg1 self.xconnect(self.pg0.sw_if_index, self.pg1.sw_if_index) # Create incoming packet streams for packet-generator interfaces pkts = self.create_stream(self.pg0, self.pg_if_packet_sizes) self.pg0.add_stream(pkts) # Enable SPAN on pg0 (mirrored to pg2) self.vapi.sw_interface_span_enable_disable( self.pg0.sw_if_index, self.pg2.sw_if_index) self.logger.info(self.vapi.ppcli("show interface span")) # Enable packet capturing and start packet sending self.pg_enable_capture(self.pg_interfaces) self.pg_start() # Verify packets outgoing packet streams on mirrored interface (pg2) n_pkts = len(pkts) pg1_pkts = self.pg1.get_capture(n_pkts) pg2_pkts = self.pg2.get_capture(n_pkts) # Disable SPAN on pg0 (mirrored to pg2) self.vapi.sw_interface_span_enable_disable( self.pg0.sw_if_index, self.pg2.sw_if_index, state=0) self.xconnect(self.pg0.sw_if_index, self.pg1.sw_if_index, is_add=0) self.verify_capture(pg1_pkts, pg2_pkts) def test_span_l2_rx(self): """ SPAN l2 rx mirror """ self.sub_if.admin_up() self.bridge(self.pg2.sw_if_index) # Create bi-directional cross-connects between pg0 subif and pg1 self.xconnect(self.sub_if.sw_if_index, self.pg1.sw_if_index) # Create incoming packet streams for packet-generator interfaces pkts = self.create_stream( self.pg0, self.pg_if_packet_sizes, do_dot1=True) self.pg0.add_stream(pkts) # Enable SPAN on pg0 (mirrored to pg2) self.vapi.sw_interface_span_enable_disable( self.sub_if.sw_if_index, self.pg2.sw_if_index, is_l2=1) self.logger.info(self.vapi.ppcli("show interface span")) # Enable packet capturing and start packet sending self.pg_enable_capture(self.pg_interfaces) self.pg_start() # Verify packets outgoing packet streams on mirrored interface (pg2) pg2_expected = len(pkts) pg1_pkts = self.pg1.get_capture(pg2_expected) pg2_pkts = self.pg2.get_capture(pg2_expected) self.bridge(self.pg2.sw_if_index, is_add=0) # Disable SPAN on pg0 (mirrored to pg2) self.vapi.sw_interface_span_enable_disable( self.sub_if.sw_if_index, self.pg2.sw_if_index, state=0, is_l2=1) self.xconnect(self.sub_if.sw_if_index, self.pg1.sw_if_index, is_add=0) self.verify_capture(pg1_pkts, pg2_pkts) def test_span_l2_rx_dst_vxlan(self): """ SPAN l2 rx mirror into vxlan """ self.sub_if.admin_up() self.vapi.sw_interface_set_flags(self.vxlan.sw_if_index, admin_up_down=1) self.bridge(self.vxlan.sw_if_index, is_add=1) # Create bi-directional cross-connects between pg0 subif and pg1 self.xconnect(self.sub_if.sw_if_index, self.pg1.sw_if_index) # Create incoming packet streams for packet-generator interfaces pkts = self.create_stream( self.pg0, self.pg_if_packet_sizes, do_dot1=True) self.pg0.add_stream(pkts) # Enable SPAN on pg0 sub if (mirrored to vxlan) self.vapi.sw_interface_span_enable_disable( self.sub_if.sw_if_index, self.vxlan.sw_if_index, is_l2=1) self.logger.info(self.vapi.ppcli("show interface span")) # Enable packet capturing and start packet sending self.pg_enable_capture(self.pg_interfaces) self.pg_start() # Verify packets outgoing packet streams on mirrored interface (pg2) n_pkts = len(pkts) pg1_pkts = self.pg1.get_capture(n_pkts) pg2_pkts = [self.decap_vxlan(p) for p in self.pg2.get_capture(n_pkts)] self.bridge(self.vxlan.sw_if_index, is_add=0) # Disable SPAN on pg0 sub if (mirrored to vxlan) self.vapi.sw_interface_span_enable_disable( self.sub_if.sw_if_index, self.vxlan.sw_if_index, state=0, is_l2=1) self.xconnect(self.sub_if.sw_if_index, self.pg1.sw_if_index, is_add=0) self.verify_capture(pg1_pkts, pg2_pkts) def test_span_l2_rx_dst_gre_erspan(self): """ SPAN l2 rx mirror into gre-erspan """ self.sub_if.admin_up() gre_if = VppGreInterface(self, self.pg2.local_ip4, self.pg2.remote_ip4, type=2, session=543) gre_if.add_vpp_config() gre_if.admin_up() self.bridge(gre_if.sw_if_index) # Create bi-directional cross-connects between pg0 and pg1 self.xconnect(self.sub_if.sw_if_index, self.pg1.sw_if_index, is_add=1) # Create incoming packet streams for packet-generator interfaces pkts = self.create_stream( self.pg0, self.pg_if_packet_sizes, do_dot1=True) self.pg0.add_stream(pkts) # Enable SPAN on pg0 sub if (mirrored to gre-erspan) self.vapi.sw_interface_span_enable_disable( self.sub_if.sw_if_index, gre_if.sw_if_index, is_l2=1) # Enable packet capturing and start packet sending self.pg_enable_capture(self.pg_interfaces) self.pg_start() # Verify packets outgoing packet streams on mirrored interface (pg2) n_pkts = len(pkts) pg1_pkts = self.pg1.get_capture(n_pkts) pg2_pkts = self.pg2.get_capture(n_pkts) def decap(p): return self.decap_erspan(p, session=543) pg2_decaped = [decap(p) for p in pg2_pkts] self.bridge(gre_if.sw_if_index, is_add=0) # Disable SPAN on pg0 sub if self.vapi.sw_interface_span_enable_disable( self.sub_if.sw_if_index, gre_if.sw_if_index, state=0, is_l2=1) gre_if.remove_vpp_config() self.xconnect(self.sub_if.sw_if_index, self.pg1.sw_if_index, is_add=0) self.verify_capture(pg1_pkts, pg2_decaped) def test_span_l2_rx_dst_gre_subif_vtr(self): """ SPAN l2 rx mirror into gre-subif+vtr """ self.sub_if.admin_up() gre_if = VppGreInterface(self, self.pg2.local_ip4, self.pg2.remote_ip4, type=1) gre_if.add_vpp_config() gre_if.admin_up() gre_sub_if = VppDot1QSubint(self, gre_if, 500) gre_sub_if.set_vtr(L2_VTR_OP.L2_POP_1, tag=500) gre_sub_if.admin_up() self.bridge(gre_sub_if.sw_if_index) # Create bi-directional cross-connects between pg0 and pg1 self.xconnect(self.sub_if.sw_if_index, self.pg1.sw_if_index, is_add=1) # Create incoming packet streams for packet-generator interfaces pkts = self.create_stream( self.pg0, self.pg_if_packet_sizes, do_dot1=True) self.pg0.add_stream(pkts) # Enable SPAN on pg0 sub if (mirrored to gre sub if) self.vapi.sw_interface_span_enable_disable( self.sub_if.sw_if_index, gre_sub_if.sw_if_index, is_l2=1) # Enable packet capturing and start packet sending self.pg_enable_capture(self.pg_interfaces) self.pg_start() # Verify packets outgoing packet streams on mirrored interface (pg2) n_pkts = len(pkts) pg1_pkts = self.pg1.get_capture(n_pkts) pg2_pkts = self.pg2.get_capture(n_pkts) def decap(p): return self.remove_tags( self.decap_gre(p), [Tag(dot1=DOT1Q, vlan=500)]) pg2_decaped = [decap(p) for p in pg2_pkts] self.bridge(gre_sub_if.sw_if_index, is_add=0) # Disable SPAN on pg0 sub if self.vapi.sw_interface_span_enable_disable( self.sub_if.sw_if_index, gre_sub_if.sw_if_index, state=0, is_l2=1) gre_if.remove_vpp_config() self.xconnect(self.sub_if.sw_if_index, self.pg1.sw_if_index, is_add=0) self.verify_capture(pg1_pkts, pg2_decaped) def test_span_l2_rx_dst_1q_vtr(self): """ SPAN l2 rx mirror into 1q subif+vtr """ self.sub_if.admin_up() self.vlan_sub_if.admin_up() self.bridge(self.vlan_sub_if.sw_if_index) # Create bi-directional cross-connects between pg0 and pg1 self.xconnect(self.sub_if.sw_if_index, self.pg1.sw_if_index, is_add=1) # Create incoming packet streams for packet-generator interfaces pkts = self.create_stream( self.pg0, self.pg_if_packet_sizes, do_dot1=True) self.pg0.add_stream(pkts) self.vapi.sw_interface_span_enable_disable( self.sub_if.sw_if_index, self.vlan_sub_if.sw_if_index, is_l2=1) # Enable packet capturing and start packet sending self.pg_enable_capture(self.pg_interfaces) self.pg_start() # Verify packets outgoing packet streams on mirrored interface (pg2) n_pkts = len(pkts) pg1_pkts = self.pg1.get_capture(n_pkts) pg2_pkts = self.pg2.get_capture(n_pkts) pg2_untagged = [self.remove_tags(p, [Tag(dot1=DOT1Q, vlan=300)]) for p in pg2_pkts] self.bridge(self.vlan_sub_if.sw_if_index, is_add=0) # Disable SPAN on pg0 sub if (mirrored to vxlan) self.vapi.sw_interface_span_enable_disable( self.sub_if.sw_if_index, self.vlan_sub_if.sw_if_index, state=0, is_l2=1) self.xconnect(self.sub_if.sw_if_index, self.pg1.sw_if_index, is_add=0) self.verify_capture(pg1_pkts, pg2_untagged) def test_span_l2_rx_dst_1ad_vtr(self): """ SPAN l2 rx mirror into 1ad subif+vtr """ self.sub_if.admin_up() self.qinq_sub_if.admin_up() self.bridge(self.qinq_sub_if.sw_if_index) # Create bi-directional cross-connects between pg0 and pg1 self.xconnect(self.sub_if.sw_if_index, self.pg1.sw_if_index, is_add=1) # Create incoming packet streams for packet-generator interfaces pkts = self.create_stream( self.pg0, self.pg_if_packet_sizes, do_dot1=True) self.pg0.add_stream(pkts) self.vapi.sw_interface_span_enable_disable( self.sub_if.sw_if_index, self.qinq_sub_if.sw_if_index, is_l2=1) # Enable packet capturing and start packet sending self.pg_enable_capture(self.pg_interfaces) self.pg_start() # Verify packets outgoing packet streams on mirrored interface (pg2) n_pkts = len(pkts) pg1_pkts = self.pg1.get_capture(n_pkts) pg2_pkts = self.pg2.get_capture(n_pkts) pg2_untagged = [self.remove_tags(p, [Tag(dot1=DOT1AD, vlan=400), Tag(dot1=DOT1Q, vlan=500)]) for p in pg2_pkts] self.bridge(self.qinq_sub_if.sw_if_index, is_add=0) # Disable SPAN on pg0 sub if (mirrored to vxlan) self.vapi.sw_interface_span_enable_disable( self.sub_if.sw_if_index, self.qinq_sub_if.sw_if_index, state=0, is_l2=1) self.xconnect(self.sub_if.sw_if_index, self.pg1.sw_if_index, is_add=0) self.verify_capture(pg1_pkts, pg2_untagged) def test_l2_tx_span(self): """ SPAN l2 tx mirror """ self.sub_if.admin_up() self.bridge(self.pg2.sw_if_index) # Create bi-directional cross-connects between pg0 and pg1 self.xconnect(self.sub_if.sw_if_index, self.pg1.sw_if_index) # Create incoming packet streams for packet-generator interfaces pkts = self.create_stream( self.pg0, self.pg_if_packet_sizes, do_dot1=True) self.pg0.add_stream(pkts) # Enable SPAN on pg1 (mirrored to pg2) self.vapi.sw_interface_span_enable_disable( self.pg1.sw_if_index, self.pg2.sw_if_index, is_l2=1, state=2) self.logger.info(self.vapi.ppcli("show interface span")) # Enable packet capturing and start packet sending self.pg_enable_capture(self.pg_interfaces) self.pg_start() # Verify packets outgoing packet streams on mirrored interface (pg2) n_pkts = len(pkts) pg1_pkts = self.pg1.get_capture(n_pkts) pg2_pkts = self.pg2.get_capture(n_pkts) self.bridge(self.pg2.sw_if_index, is_add=0) # Disable SPAN on pg0 (mirrored to pg2) self.vapi.sw_interface_span_enable_disable( self.pg1.sw_if_index, self.pg2.sw_if_index, state=0, is_l2=1) self.xconnect(self.sub_if.sw_if_index, self.pg1.sw_if_index, is_add=0) self.verify_capture(pg1_pkts, pg2_pkts) def test_l2_rx_tx_span(self): """ SPAN l2 rx tx mirror """ self.sub_if.admin_up() self.bridge(self.pg2.sw_if_index) # Create bi-directional cross-connects between pg0 and pg1 self.xconnect(self.sub_if.sw_if_index, self.pg1.sw_if_index) # Create incoming packet streams for packet-generator interfaces pg0_pkts = self.create_stream( self.pg0, self.pg_if_packet_sizes, do_dot1=True) self.pg0.add_stream(pg0_pkts) pg1_pkts = self.create_stream( self.pg1, self.pg_if_packet_sizes, do_dot1=False) self.pg1.add_stream(pg1_pkts) # Enable SPAN on pg0 (mirrored to pg2) self.vapi.sw_interface_span_enable_disable( self.sub_if.sw_if_index, self.pg2.sw_if_index, is_l2=1, state=3) self.logger.info(self.vapi.ppcli("show interface span")) # Enable packet capturing and start packet sending self.pg_enable_capture(self.pg_interfaces) self.pg_start() # Verify packets outgoing packet streams on mirrored interface (pg2) pg0_expected = len(pg1_pkts) pg1_expected = len(pg0_pkts) pg2_expected = pg0_expected + pg1_expected pg0_pkts = self.pg0.get_capture(pg0_expected) pg1_pkts = self.pg1.get_capture(pg1_expected) pg2_pkts = self.pg2.get_capture(pg2_expected) self.bridge(self.pg2.sw_if_index, is_add=0) # Disable SPAN on pg0 (mirrored to pg2) self.vapi.sw_interface_span_enable_disable( self.sub_if.sw_if_index, self.pg2.sw_if_index, state=0, is_l2=1) self.xconnect(self.sub_if.sw_if_index, self.pg1.sw_if_index, is_add=0) self.verify_capture(pg0_pkts + pg1_pkts, pg2_pkts) def test_l2_bcast_mirror(self): """ SPAN l2 broadcast mirror """ self.sub_if.admin_up() self.bridge(self.pg2.sw_if_index) # Create bi-directional cross-connects between pg0 and pg1 self.vapi.sw_interface_set_l2_bridge( rx_sw_if_index=self.sub_if.sw_if_index, bd_id=99, enable=1) self.vapi.sw_interface_set_l2_bridge( rx_sw_if_index=self.pg1.sw_if_index, bd_id=99, enable=1) # Create incoming packet streams for packet-generator interfaces pg0_pkts = self.create_stream( self.pg0, self.pg_if_packet_sizes, do_dot1=True, bcast=True) self.pg0.add_stream(pg0_pkts) pg1_pkts = self.create_stream( self.pg1, self.pg_if_packet_sizes, do_dot1=False, bcast=True) self.pg1.add_stream(pg1_pkts) # Enable SPAN on pg0 (mirrored to pg2) self.vapi.sw_interface_span_enable_disable( self.sub_if.sw_if_index, self.pg2.sw_if_index, is_l2=1, state=3) self.logger.info(self.vapi.ppcli("show interface span")) # Enable packet capturing and start packet sending self.pg_enable_capture(self.pg_interfaces) self.pg_start() # Verify packets outgoing packet streams on mirrored interface (pg2) pg0_expected = len(pg1_pkts) pg1_expected = len(pg0_pkts) pg2_expected = pg0_expected + pg1_expected pg0_pkts = self.pg0.get_capture(pg0_expected) pg1_pkts = self.pg1.get_capture(pg1_expected) pg2_pkts = self.pg2.get_capture(pg2_expected) self.bridge(self.pg2.sw_if_index, is_add=0) self.vapi.sw_interface_set_l2_bridge( rx_sw_if_index=self.sub_if.sw_if_index, bd_id=99, enable=0) self.vapi.sw_interface_set_l2_bridge( rx_sw_if_index=self.pg1.sw_if_index, bd_id=99, enable=0) # Disable SPAN on pg0 (mirrored to pg2) self.vapi.sw_interface_span_enable_disable( self.sub_if.sw_if_index, self.pg2.sw_if_index, state=0, is_l2=1) self.verify_capture(pg0_pkts + pg1_pkts, pg2_pkts) if __name__ == '__main__': unittest.main(testRunner=VppTestRunner)