* apps/netutils/netlib/netlib_checkipconnectivity.c
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you 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.
*
****************************************************************************/
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <stdint.h>
#include <stdbool.h>
#include <unistd.h>
#include <string.h>
#include <errno.h>
#include <debug.h>
#include <arpa/inet.h>
#include <nuttx/net/ip.h>
#include <nuttx/net/dns.h>
#include "netutils/icmp_ping.h"
#include "netutils/netlib.h"
#ifdef CONFIG_NETUTILS_PING
* Private Data
****************************************************************************/
#define PING_IPADDR_DATALEN 80
* Private Functions
****************************************************************************/
static int dns_ping_callback(FAR void *arg, FAR struct sockaddr *addr,
socklen_t addrlen)
{
FAR struct ping_info_s *info = (FAR struct ping_info_s *)arg;
char ip_str[INET_ADDRSTRLEN];
int count;
if (addr->sa_family == AF_INET)
{
inet_ntop(AF_INET, &((FAR struct sockaddr_in *)addr)->sin_addr,
ip_str, INET_ADDRSTRLEN);
info->hostname = ip_str;
ninfo("ping ipaddr test %s \n", info->hostname);
icmp_ping(info);
count = *(FAR int *)info->priv;
if (count > 0)
{
return 1;
}
}
return OK;
}
* Name: ping_ipaddr_callback
*
* Description:
* ping ipaddr callback
*
* Parameters:
* result The result of ping
*
****************************************************************************/
static void ping_ipaddr_callback(FAR const struct ping_result_s *result)
{
FAR int *count = result->info->priv;
if (result->code == ICMP_I_FINISH)
{
*count = result->nreplies;
}
}
* Public Functions
****************************************************************************/
* Name: netlib_check_ipconnectivity
*
* Description:
* Get the network dns status
*
* Parameters:
* ip The ipv4 address to check
* timeout The max timeout of each ping
* retry The retry times of ping
*
* Return:
* nums of remote reply of ping; a nagtive on failure
*
****************************************************************************/
int netlib_check_ipconnectivity(FAR const char *ip, int timeout, int retry)
{
int replies = 0;
struct ping_info_s info;
info.count = retry;
info.datalen = PING_IPADDR_DATALEN;
info.delay = 0;
info.timeout = timeout;
info.callback = ping_ipaddr_callback;
info.priv = &replies;
#ifdef CONFIG_NET_BINDTODEVICE
info.devname = NULL;
#endif
if (!ip)
{
dns_foreach_nameserver(dns_ping_callback, &info);
}
else
{
info.hostname = ip;
ninfo("ping ipaddr test %s \n", info.hostname);
icmp_ping(&info);
}
return replies;
}
#endif