8af78b8e36
The new arping_acd call includes the responders mac address in the reply. Enabling a client doing address conflict detection to identify if it is itself that is replying or that it is another host uses the IP address. Type: feature Change-Id: Ia4bab2af1086f06ed71ba42e2e07368d4e330a27 Signed-off-by: Ole Troan <otroan@employees.org>
121 lines
3.2 KiB
C
121 lines
3.2 KiB
C
/*
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*------------------------------------------------------------------
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* Copyright (c) 2021 Cisco and/or its affiliates.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*------------------------------------------------------------------
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*/
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#include <vlib/vlib.h>
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#include <vlib/unix/unix.h>
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#include <vlib/pci/pci.h>
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#include <vnet/ethernet/ethernet.h>
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#include <vnet/format_fns.h>
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#include <vnet/ip/ip_types_api.h>
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#include <arping/arping.h>
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#include <vlibapi/api.h>
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#include <vlibmemory/api.h>
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#include <vnet/ethernet/ethernet_types_api.h>
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/* define message IDs */
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#include <arping/arping.api_enum.h>
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#include <arping/arping.api_types.h>
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#define REPLY_MSG_ID_BASE (am->msg_id_base)
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#include <vlibapi/api_helper_macros.h>
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static void
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vl_api_arping_t_handler (vl_api_arping_t *mp)
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{
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vlib_main_t *vm = vlib_get_main ();
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arping_main_t *am = &arping_main;
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vl_api_arping_reply_t *rmp;
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arping_args_t args = { 0 };
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int rv;
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if (mp->sw_if_index != ~0)
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VALIDATE_SW_IF_INDEX (mp);
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ip_address_decode2 (&mp->address, &args.address);
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args.interval = clib_net_to_host_f64 (mp->interval);
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args.repeat = ntohl (mp->repeat);
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args.is_garp = mp->is_garp;
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args.sw_if_index = ntohl (mp->sw_if_index);
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args.silence = 1;
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arping_run_command (vm, &args);
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rv = args.rv;
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BAD_SW_IF_INDEX_LABEL;
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REPLY_MACRO2 (VL_API_ARPING_REPLY,
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({ rmp->reply_count = ntohl (args.reply_count); }));
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}
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static void
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vl_api_arping_acd_t_handler (vl_api_arping_acd_t *mp)
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{
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vlib_main_t *vm = vlib_get_main ();
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arping_main_t *am = &arping_main;
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vl_api_arping_acd_reply_t *rmp;
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arping_args_t args = { 0 };
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int rv;
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if (mp->sw_if_index != ~0)
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VALIDATE_SW_IF_INDEX (mp);
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ip_address_decode2 (&mp->address, &args.address);
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args.interval = clib_net_to_host_f64 (mp->interval);
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args.repeat = ntohl (mp->repeat);
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args.is_garp = mp->is_garp;
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args.sw_if_index = ntohl (mp->sw_if_index);
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args.silence = 1;
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arping_run_command (vm, &args);
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rv = args.rv;
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BAD_SW_IF_INDEX_LABEL;
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REPLY_MACRO2 (VL_API_ARPING_ACD_REPLY, ({
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rmp->reply_count = ntohl (args.reply_count);
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mac_address_encode (&args.recv.from4.mac, rmp->mac_address);
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}));
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}
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/* set tup the API message handling tables */
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#include <arping/arping.api.c>
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clib_error_t *
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arping_plugin_api_hookup (vlib_main_t *vm)
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{
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arping_main_t *am = &arping_main;
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api_main_t *vam = vlibapi_get_main ();
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/* ask for a correctly-sized block of API message decode slots */
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am->msg_id_base = setup_message_id_table ();
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/* Mark API as mp safe */
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vl_api_set_msg_thread_safe (vam, am->msg_id_base + VL_API_ARPING, 1);
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vl_api_set_msg_thread_safe (vam, am->msg_id_base + VL_API_ARPING_ACD, 1);
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return 0;
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}
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/*
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* fd.io coding-style-patch-verification: ON
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*
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* Local Variables:
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* eval: (c-set-style "gnu")
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* End:
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*/
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