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/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
/***************************************************************************
* Free/Net/OpenBSD specific network code taken out of gkrellm: *
* Copyright by Bill Wilson <bill@gkrellm.net> *
* FreeBSD code by Hajimu Umemoto <ume@mahoroba.org> *
* NetBSD code by Anthony Mallet <anthony.mallet@useless-ficus.net> *
* Hajimu Umemoto merged Free/Net/OpenBSD code *
* adapted for nload by Roland Riegel <feedback@roland-riegel.de> *
***************************************************************************/
#include "devreader-bsd.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <sys/ioctl.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <net/if.h>
#include <unistd.h>
#include <sys/param.h>
#include <sys/sysctl.h>
#include <net/if_dl.h>
#include <net/route.h>
#include <string>
#include <list>
using namespace std;
DevReaderBsd::DevReaderBsd(const string& deviceName)
: DevReader(deviceName)
{
}
DevReaderBsd::~DevReaderBsd()
{
}
list<string> DevReaderBsd::findAllDevices()
{
list<string> interfaceNames;
struct if_msghdr *ifm, *nextifm;
struct sockaddr_dl *sdl;
char *lim, *next;
size_t needed;
int mib[] = {CTL_NET, PF_ROUTE, 0, 0, NET_RT_IFLIST, 0};
char *buf = 0;
if(sysctl(mib, 6, NULL, &needed, NULL, 0) < 0)
return interfaceNames;
buf = (char *) malloc(needed);
if(buf == NULL)
return interfaceNames;
if(sysctl(mib, 6, buf, &needed, NULL, 0) < 0)
return interfaceNames;
lim = buf + needed;
next = buf;
while(next < lim)
{
ifm = (struct if_msghdr *) next;
if(ifm->ifm_type != RTM_IFINFO)
break;
next += ifm->ifm_msglen;
while(next < lim)
{
nextifm = (struct if_msghdr *) next;
if(nextifm->ifm_type != RTM_NEWADDR)
break;
next += nextifm->ifm_msglen;
}
sdl = (struct sockaddr_dl *) (ifm + 1);
if(sdl->sdl_family != AF_LINK)
continue;
interfaceNames.push_back(string(sdl->sdl_data));
}
free(buf);
return interfaceNames;
}
void DevReaderBsd::readFromDevice(DataFrame& dataFrame)
{
struct if_msghdr *ifm, *nextifm;
struct sockaddr_dl *sdl;
char *lim, *next;
size_t needed;
int mib[] = {CTL_NET, PF_ROUTE, 0, 0, NET_RT_IFLIST, 0};
char *buf = 0;
if(m_deviceName.empty())
return;
do
{
if(sysctl(mib, 6, NULL, &needed, NULL, 0) < 0)
break;
buf = (char *) malloc(needed);
if(buf == NULL)
break;
if(sysctl(mib, 6, buf, &needed, NULL, 0) < 0)
break;
lim = buf + needed;
next = buf;
while(next < lim)
{
ifm = (struct if_msghdr *) next;
if(ifm->ifm_type != RTM_IFINFO)
break;
next += ifm->ifm_msglen;
while(next < lim)
{
nextifm = (struct if_msghdr *) next;
if(nextifm->ifm_type != RTM_NEWADDR)
break;
next += nextifm->ifm_msglen;
}
if(ifm->ifm_flags & IFF_UP)
{
sdl = (struct sockaddr_dl *) (ifm + 1);
if(sdl->sdl_family != AF_LINK)
continue;
if(strncmp(m_deviceName.c_str(), sdl->sdl_data, sdl->sdl_nlen) == 0)
{
dataFrame.setTotalDataIn(ifm->ifm_data.ifi_ibytes);
dataFrame.setTotalDataOut(ifm->ifm_data.ifi_obytes);
dataFrame.setTotalPacketsIn(ifm->ifm_data.ifi_ipackets);
dataFrame.setTotalPacketsOut(ifm->ifm_data.ifi_opackets);
dataFrame.setTotalErrorsIn(ifm->ifm_data.ifi_ierrors);
dataFrame.setTotalErrorsOut(ifm->ifm_data.ifi_oerrors);
dataFrame.setTotalDropsIn(0); // ifi_iqdrops ?
dataFrame.setTotalDropsOut(0);
dataFrame.setValid(true);
break;
}
}
}
} while(0);
free(buf);
}
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