153 lines
4.6 KiB
C
153 lines
4.6 KiB
C
/****************************************************************************
|
|
* apps/netutils/netlib/netlib_getifstatistics.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 <stdio.h>
|
|
#include <string.h>
|
|
#include <errno.h>
|
|
#include <debug.h>
|
|
|
|
#include <sys/types.h>
|
|
|
|
#include "netutils/netlib.h"
|
|
|
|
#ifdef CONFIG_NETDEV_STATISTICS
|
|
|
|
/****************************************************************************
|
|
* Pre-processor Definitions
|
|
****************************************************************************/
|
|
|
|
/* Determines the size of an intermediate buffer that must be large enough
|
|
* to handle the longest line generated by this logic.
|
|
*/
|
|
|
|
#define PROCFS_LINELEN 80
|
|
#define PROCFS_NET_PATH "/proc/net/"
|
|
|
|
/* The form of the entry from the netstat file:
|
|
*
|
|
* wlan0 Link encap:Ethernet HWaddr 42:37:46:02:16:07 at UP mtu 1500
|
|
* inet addr:10.0.1.2 DRaddr:10.0.1.1 Mask:255.255.255.0
|
|
* inet6 DRaddr: ::
|
|
*
|
|
* RX: Received Fragment Errors Bytes
|
|
* 000008c1 00000000 00000000 331ca8
|
|
* IPv4 IPv6 ARP Dropped
|
|
* 000008a7 00000018 00000002 00000000
|
|
* TX: Queued Sent Errors Timeouts Bytes
|
|
* 00000973 00000973 00000000 00000000 1b8d3
|
|
* Total Errors: 00000000
|
|
*/
|
|
|
|
/****************************************************************************
|
|
* Public Functions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Name: netlib_getifstatistics
|
|
*
|
|
* Description:
|
|
* Read the DEV RX/TX statistics.
|
|
*
|
|
* Input Parameters:
|
|
* ifname - The interface to read.
|
|
* stat - The pointer to return dev statistics.
|
|
*
|
|
* Returned Value:
|
|
* 0 on success. A negated errno value is returned
|
|
* on any failure.
|
|
****************************************************************************/
|
|
|
|
int netlib_getifstatistics(FAR const char *ifname,
|
|
FAR struct netdev_statistics_s *stat)
|
|
{
|
|
FAR FILE *stream;
|
|
char path[32];
|
|
char line[PROCFS_LINELEN];
|
|
int ret = OK;
|
|
|
|
snprintf(path, sizeof(path), "%s%s", PROCFS_NET_PATH, ifname);
|
|
ninfo("get statistics from %s \n", path);
|
|
|
|
stream = fopen(path, "r");
|
|
if (stream == NULL)
|
|
{
|
|
fprintf(stderr, "ERROR: Failed to open path:%s \n", path);
|
|
return -ENOTDIR;
|
|
}
|
|
|
|
while (fgets(line, sizeof(line), stream) != NULL)
|
|
{
|
|
/* Read RX header and next is the data */
|
|
|
|
if (strstr(line, "RX:") != NULL)
|
|
{
|
|
if (fgets(line, sizeof(line), stream) == NULL)
|
|
{
|
|
ret = -EINVAL;
|
|
break;
|
|
}
|
|
|
|
if (sscanf(line, "%" SCNx32 "%" SCNx32 "%" SCNx32 "%" SCNx64,
|
|
&stat->rx_packets,
|
|
&stat->rx_fragments,
|
|
&stat->rx_errors,
|
|
&stat->rx_bytes) <= 0)
|
|
{
|
|
ret = -EINVAL;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Read TX header and next is the data */
|
|
|
|
if (strstr(line, "TX:") != NULL)
|
|
{
|
|
if (fgets(line, sizeof(line), stream) == NULL)
|
|
{
|
|
ret = -EINVAL;
|
|
break;
|
|
}
|
|
|
|
if (sscanf(line, "%" SCNx32 "%" SCNx32 "%" SCNx32 \
|
|
"%" SCNx32 "%" SCNx64,
|
|
&stat->tx_packets,
|
|
&stat->tx_done,
|
|
&stat->tx_errors,
|
|
&stat->tx_timeouts,
|
|
&stat->tx_bytes) <= 0)
|
|
{
|
|
ret = -EINVAL;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
fclose(stream);
|
|
return ret;
|
|
}
|
|
|
|
#endif /* CONFIG_NETDEV_STATISTICS */
|