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apps/net: add ip address connectivity check API

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The system checks connectivity with the input IP address; if no IP address is provided, it defaults to checking DNS server connectivity.

Signed-off-by: meijian <meijian@xiaomi.com>
This commit is contained in:
meijian 2024-10-12 16:54:05 +08:00 • committed by Xiang Xiao
parent 150c5756a0
commit 3467f9b82d
4 changed files with 147 additions and 0 deletions
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4
include/netutils/netlib.h
View file

@ -513,6 +513,10 @@ int netlib_getifstatistics(FAR const char *ifname,
int netlib_check_ifconflict(FAR const char *ifname);
#endif
#ifdef CONFIG_NETUTILS_PING
int netlib_check_ipconnectivity(FAR const char *ip, int timeout, int retry);
#endif
#ifdef CONFIG_MM_IOB
int netlib_get_iobinfo(FAR struct iob_stats_s *iob);
#endif

4
netutils/netlib/CMakeLists.txt
View file

@ -157,6 +157,10 @@ if(CONFIG_NETUTILS_NETLIB)
list(APPEND SRCS netlib_getiobinfo.c)
endif()
if(CONFIG_NETUTILS_PING)
list(APPEND SRCS netlib_checkipconnectivity.c)
endif()
target_sources(apps PRIVATE ${SRCS})
endif()

4
netutils/netlib/Makefile
View file

@ -156,4 +156,8 @@ ifeq ($(CONFIG_MM_IOB),y)
CSRCS += netlib_getiobinfo.c
endif
ifeq ($(CONFIG_NETUTILS_PING),y)
CSRCS += netlib_checkipconnectivity.c
endif
include $(APPDIR)/Application.mk

135
netutils/netlib/netlib_checkipconnectivity.c Normal file
View file

@ -0,0 +1,135 @@
/****************************************************************************
* 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 "netutils/icmp_ping.h"
#include "netutils/netlib.h"
#ifdef CONFIG_NETUTILS_PING
/****************************************************************************
* Private Data
****************************************************************************/
#define PING_IPADDR_DATALEN 80
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* 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;
#ifdef CONFIG_NETDB_DNSSERVER_IPv4ADDR
char ip_str[INET_ADDRSTRLEN];
struct in_addr addr;
#endif
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;
/* if ip is NULL we use default DNS server */
if (ip == NULL)
{
#ifdef CONFIG_NETDB_DNSSERVER_IPv4ADDR
addr.s_addr = HTONL(CONFIG_NETDB_DNSSERVER_IPv4ADDR);
inet_ntop(AF_INET, &addr, ip_str, INET_ADDRSTRLEN);
info.hostname = ip_str;
#else
nerr("ERROR: IP is NULL and no DNS server configured\n");
return -EINVAL;
#endif
}
else
{
info.hostname = ip;
}
ninfo("ping ipaddr test %s \n", info.hostname);
icmp_ping(&info);
return replies;
}
#endif /* CONFIG_NETUTILS_PING */