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/*
*------------------------------------------------------------------
* Copyright (c) 2023 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 <vlib/unix/unix.h>
#include <vlib/pci/pci.h>
#include <vnet/ethernet/ethernet.h>
#include <vnet/format_fns.h>
#include <vnet/ip/ip_types_api.h>
#include <vlibapi/api.h>
#include <vlibmemory/api.h>
#include <ping/ping.h>
/* define message IDs */
#include <ping/ping.api_enum.h>
#include <ping/ping.api_types.h>
#define REPLY_MSG_ID_BASE pm->msg_id_base
#include <vlibapi/api_helper_macros.h>
static void
ping_api_send_ping_event (vl_api_want_ping_finished_events_t *mp,
u32 request_count, u32 reply_count)
{
ping_main_t *pm = &ping_main;
vl_api_registration_t *rp;
rp = vl_api_client_index_to_registration (mp->client_index);
vl_api_ping_finished_event_t *e = vl_msg_api_alloc (sizeof (*e));
clib_memset (e, 0, sizeof (*e));
e->_vl_msg_id = htons (VL_API_PING_FINISHED_EVENT + pm->msg_id_base);
e->request_count = htonl (request_count);
e->reply_count = htonl (reply_count);
vl_api_send_msg (rp, (u8 *) e);
}
void
vl_api_want_ping_finished_events_t_handler (
vl_api_want_ping_finished_events_t *mp)
{
vlib_main_t *vm = vlib_get_main ();
ping_main_t *pm = &ping_main;
vl_api_want_ping_finished_events_reply_t *rmp;
uword curr_proc = vlib_current_process (vm);
u16 icmp_id;
static u32 rand_seed = 0;
if (PREDICT_FALSE (!rand_seed))
rand_seed = random_default_seed ();
icmp_id = random_u32 (&rand_seed) & 0xffff;
while (~0 != get_cli_process_id_by_icmp_id_mt (vm, icmp_id))
icmp_id++;
set_cli_process_id_by_icmp_id_mt (vm, icmp_id, curr_proc);
int rv = 0;
u32 request_count = 0;
u32 reply_count = 0;
u32 table_id = 0;
ip_address_t dst_addr = { 0 };
u32 sw_if_index = ~0;
f64 ping_interval = clib_net_to_host_f64 (mp->interval);
u32 ping_repeat = ntohl (mp->repeat);
u32 data_len = PING_DEFAULT_DATA_LEN;
u32 ping_burst = 1;
u32 verbose = 0;
ip_address_decode2 (&mp->address, &dst_addr);
vl_api_registration_t *rp;
rp = vl_api_client_index_to_registration (mp->client_index);
rmp = vl_msg_api_alloc (sizeof (*rmp));
rmp->_vl_msg_id =
htons ((VL_API_WANT_PING_FINISHED_EVENTS_REPLY) + (REPLY_MSG_ID_BASE));
rmp->context = mp->context;
rmp->retval = ntohl (rv);
vl_api_send_msg (rp, (u8 *) rmp);
int i;
send_ip46_ping_result_t res = SEND_PING_OK;
for (i = 1; i <= ping_repeat; i++)
{
f64 sleep_interval;
f64 time_ping_sent = vlib_time_now (vm);
if (dst_addr.version == AF_IP4)
res = send_ip4_ping (vm, table_id, &dst_addr.ip.ip4, sw_if_index, i,
icmp_id, data_len, ping_burst, verbose);
else
res = send_ip6_ping (vm, table_id, &dst_addr.ip.ip6, sw_if_index, i,
icmp_id, data_len, ping_burst, verbose);
if (SEND_PING_OK == res)
request_count += 1;
else
continue;
while ((sleep_interval =
time_ping_sent + ping_interval - vlib_time_now (vm)) > 0.0)
{
uword event_type;
vlib_process_wait_for_event_or_clock (vm, sleep_interval);
event_type = vlib_process_get_events (vm, 0);
if (event_type == ~0)
break;
if (event_type == PING_RESPONSE_IP4 ||
event_type == PING_RESPONSE_IP6)
reply_count += 1;
}
}
ping_api_send_ping_event (mp, request_count, reply_count);
clear_cli_process_id_by_icmp_id_mt (vm, icmp_id);
}
/* set tup the API message handling tables */
#include <ping/ping.api.c>
clib_error_t *
ping_plugin_api_hookup (vlib_main_t *vm)
{
ping_main_t *pm = &ping_main;
/* ask for a correctly-sized block of API message decode slots */
pm->msg_id_base = setup_message_id_table ();
return 0;
}
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