mirror of
https://github.com/Icinga/icinga2.git
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373 lines
12 KiB
C++
373 lines
12 KiB
C++
/******************************************************************************
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* Icinga 2 *
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* Copyright (C) 2012-2015 Icinga Development Team (http://www.icinga.org) *
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* *
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* This program is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU General Public License *
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* as published by the Free Software Foundation; either version 2 *
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* of the License, or (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the Free Software Foundation *
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
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******************************************************************************/
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#define WIN32_LEAN_AND_MEAN
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#include <Windows.h>
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#include <Pdh.h>
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#include <Shlwapi.h>
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#include <iostream>
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#include <pdhmsg.h>
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#include <WinSock2.h>
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#include <map>
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#include <IPHlpApi.h>
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#include "check_network.h"
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#define VERSION 1.1
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namespace po = boost::program_options;
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static BOOL debug = FALSE;
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INT wmain(INT argc, WCHAR **argv)
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{
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std::vector<nInterface> vInterfaces;
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std::map<std::wstring, std::wstring> mapNames;
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printInfoStruct printInfo{};
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po::variables_map vm;
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INT ret = parseArguments(argc, argv, vm, printInfo);
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if (ret != -1)
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return ret;
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if (!mapSystemNamesToFamiliarNames(mapNames))
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return 3;
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ret = check_network(vInterfaces);
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if (ret != -1)
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return ret;
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return printOutput(printInfo, vInterfaces, mapNames);
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}
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INT parseArguments(INT ac, WCHAR **av, po::variables_map& vm, printInfoStruct& printInfo)
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{
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WCHAR namePath[MAX_PATH];
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GetModuleFileName(NULL, namePath, MAX_PATH);
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WCHAR *progName = PathFindFileName(namePath);
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po::options_description desc("Options");
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desc.add_options()
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("help,h", "print usage and exit")
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("version,V", "print version and exit")
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("debug,d", "Verbose/Debug output")
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("warning,w", po::wvalue<std::wstring>(), "warning value")
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("critical,c", po::wvalue<std::wstring>(), "critical value")
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;
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po::basic_command_line_parser<WCHAR> parser(ac, av);
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try {
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po::store(
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parser
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.options(desc)
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.style(
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po::command_line_style::unix_style |
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po::command_line_style::allow_long_disguise)
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.run(),
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vm);
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vm.notify();
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} catch (std::exception& e) {
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std::cout << e.what() << '\n' << desc << '\n';
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return 3;
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}
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if (vm.count("help")) {
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std::wcout << progName << " Help\n\tVersion: " << VERSION << '\n';
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wprintf(
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L"%s is a simple program to check a machines network performance.\n"
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L"You can use the following options to define its behaviour:\n\n", progName);
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std::cout << desc;
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wprintf(
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L"\nIt will then output a string looking something like this:\n\n"
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L"\tNETWORK WARNING 1131B/s | network=1131B/s;1000;7000;0\n\n"
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L"\"NETWORK\" being the type of the check, \"WARNING\" the returned status\n"
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L"and \"1131B/s\" is the returned value.\n"
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L"The performance data is found behind the \"|\", in order:\n"
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L"returned value, warning threshold, critical threshold, minimal value and,\n"
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L"if applicable, the maximal value. Performance data will only be displayed when\n"
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L"you set at least one threshold\n\n"
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L"This program will also print out additional performance data interface\n"
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L"by interface\n\n"
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L"%s' exit codes denote the following:\n"
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L" 0\tOK,\n\tNo Thresholds were broken or the programs check part was not executed\n"
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L" 1\tWARNING,\n\tThe warning, but not the critical threshold was broken\n"
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L" 2\tCRITICAL,\n\tThe critical threshold was broken\n"
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L" 3\tUNKNOWN, \n\tThe program experienced an internal or input error\n\n"
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L"Threshold syntax:\n\n"
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L"-w THRESHOLD\n"
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L"warn if threshold is broken, which means VALUE > THRESHOLD\n"
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L"(unless stated differently)\n\n"
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L"-w !THRESHOLD\n"
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L"inverts threshold check, VALUE < THRESHOLD (analogous to above)\n\n"
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L"-w [THR1-THR2]\n"
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L"warn is VALUE is inside the range spanned by THR1 and THR2\n\n"
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L"-w ![THR1-THR2]\n"
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L"warn if VALUE is outside the range spanned by THR1 and THR2\n\n"
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L"-w THRESHOLD%%\n"
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L"if the plugin accepts percentage based thresholds those will be used.\n"
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L"Does nothing if the plugin does not accept percentages, or only uses\n"
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L"percentage thresholds. Ranges can be used with \"%%\", but both range values need\n"
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L"to end with a percentage sign.\n\n"
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L"All of these options work with the critical threshold \"-c\" too."
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, progName);
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std::cout << '\n';
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return 0;
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}
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if (vm.count("version"))
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std::cout << "Version: " << VERSION << '\n';
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if (vm.count("warning")) {
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try {
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printInfo.warn = threshold(vm["warning"].as<std::wstring>());
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} catch (std::invalid_argument& e) {
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std::cout << e.what() << '\n';
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return 3;
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}
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}
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if (vm.count("critical")) {
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try {
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printInfo.crit = threshold(vm["critical"].as<std::wstring>());
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} catch (std::invalid_argument& e) {
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std::cout << e.what() << '\n';
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return 3;
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}
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}
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if (vm.count("debug"))
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debug = TRUE;
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return -1;
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}
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INT printOutput(printInfoStruct& printInfo, CONST std::vector<nInterface>& vInterfaces, CONST std::map<std::wstring, std::wstring>& mapNames)
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{
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if (debug)
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std::wcout << L"Constructing output string" << '\n';
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long tIn = 0, tOut = 0;
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std::wstringstream tss, perfDataFirst;
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state state = OK;
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std::map<std::wstring, std::wstring>::const_iterator mapIt;
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std::wstring wsFriendlyName;
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for (std::vector<nInterface>::const_iterator it = vInterfaces.begin(); it != vInterfaces.end(); ++it) {
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tIn += it->BytesInSec;
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tOut += it->BytesOutSec;
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if (debug)
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std::wcout << "Getting friendly name of " << it->name << '\n';
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mapIt = mapNames.find(it->name);
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if (mapIt != mapNames.end()) {
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if (debug)
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std::wcout << "\tIs " << mapIt->second << '\n';
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wsFriendlyName = mapIt->second;
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} else {
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if (debug)
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std::wcout << "\tNo friendly name found, using adapter name\n";
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wsFriendlyName = it->name;
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}
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tss << L"netI=\"" << wsFriendlyName << L"\";in=" << it->BytesInSec << "B/s;out=" << it->BytesOutSec << L"B/s ";
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}
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if (printInfo.warn.rend(tIn + tOut))
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state = WARNING;
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if (printInfo.crit.rend(tIn + tOut))
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state = CRITICAL;
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perfDataFirst << L"network=" << tIn + tOut << L"B/s;" << printInfo.warn.pString() << L";" << printInfo.crit.pString() << L";" << L"0; ";
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switch (state) {
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case OK:
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std::wcout << L"NETWORK OK " << tIn + tOut << L"B/s | " << perfDataFirst.str() << tss.str() << '\n';
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break;
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case WARNING:
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std::wcout << L"NETWORK WARNING " << tIn + tOut << L"B/s | " << perfDataFirst.str() << tss.str() << '\n';
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break;
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case CRITICAL:
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std::wcout << L"NETWORK CRITICAL " << tIn + tOut << L"B/s | " << perfDataFirst.str() << tss.str() << '\n';
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break;
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}
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return state;
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}
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INT check_network(std::vector <nInterface>& vInterfaces)
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{
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CONST WCHAR *perfIn = L"\\Network Interface(*)\\Bytes Received/sec";
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CONST WCHAR *perfOut = L"\\Network Interface(*)\\Bytes Sent/sec";
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PDH_HQUERY phQuery = NULL;
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PDH_HCOUNTER phCounterIn, phCounterOut;
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DWORD dwBufferSizeIn = 0, dwBufferSizeOut = 0, dwItemCount = 0;
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PDH_FMT_COUNTERVALUE_ITEM *pDisplayValuesIn = NULL, *pDisplayValuesOut = NULL;
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PDH_STATUS err;
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if (debug)
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std::wcout << L"Creating Query and adding counters" << '\n';
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err = PdhOpenQuery(NULL, NULL, &phQuery);
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if (!SUCCEEDED(err))
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goto die;
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err = PdhAddEnglishCounter(phQuery, perfIn, NULL, &phCounterIn);
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if (!SUCCEEDED(err))
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goto die;
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err = PdhAddEnglishCounter(phQuery, perfOut, NULL, &phCounterOut);
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if (!SUCCEEDED(err))
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goto die;
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if (debug)
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std::wcout << L"Collecting first batch of query data" << '\n';
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err = PdhCollectQueryData(phQuery);
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if (!SUCCEEDED(err))
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goto die;
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if (debug)
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std::wcout << L"Sleep for one second" << '\n';
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Sleep(1000);
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if (debug)
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std::wcout << L"Collecting second batch of query data" << '\n';
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err = PdhCollectQueryData(phQuery);
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if (!SUCCEEDED(err))
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goto die;
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if (debug)
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std::wcout << L"Creating formatted counter arrays" << '\n';
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err = PdhGetFormattedCounterArray(phCounterIn, PDH_FMT_LONG, &dwBufferSizeIn, &dwItemCount, pDisplayValuesIn);
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if (err == PDH_MORE_DATA || SUCCEEDED(err))
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pDisplayValuesIn = reinterpret_cast<PDH_FMT_COUNTERVALUE_ITEM*>(new BYTE[dwItemCount*dwBufferSizeIn]);
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else
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goto die;
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err = PdhGetFormattedCounterArray(phCounterOut, PDH_FMT_LONG, &dwBufferSizeOut, &dwItemCount, pDisplayValuesOut);
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if (err == PDH_MORE_DATA || SUCCEEDED(err))
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pDisplayValuesOut = reinterpret_cast<PDH_FMT_COUNTERVALUE_ITEM*>(new BYTE[dwItemCount*dwBufferSizeIn]);
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else
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goto die;
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err = PdhGetFormattedCounterArray(phCounterIn, PDH_FMT_LONG, &dwBufferSizeIn, &dwItemCount, pDisplayValuesIn);
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if (!SUCCEEDED(err))
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goto die;
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err = PdhGetFormattedCounterArray(phCounterOut, PDH_FMT_LONG, &dwBufferSizeOut, &dwItemCount, pDisplayValuesOut);
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if (!SUCCEEDED(err))
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goto die;
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if (debug)
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std::wcout << L"Going over counter array" << '\n';
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for (DWORD i = 0; i < dwItemCount; i++) {
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nInterface *iface = new nInterface(std::wstring(pDisplayValuesIn[i].szName));
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iface->BytesInSec = pDisplayValuesIn[i].FmtValue.longValue;
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iface->BytesOutSec = pDisplayValuesOut[i].FmtValue.longValue;
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vInterfaces.push_back(*iface);
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if (debug)
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std::wcout << L"Collected interface " << pDisplayValuesIn[i].szName << '\n';
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}
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if (debug)
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std::wcout << L"Finished collection. Cleaning up and returning" << '\n';
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if (phQuery)
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PdhCloseQuery(phQuery);
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if (pDisplayValuesIn)
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delete reinterpret_cast<PDH_FMT_COUNTERVALUE_ITEM*>(pDisplayValuesIn);
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if (pDisplayValuesOut)
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delete reinterpret_cast<PDH_FMT_COUNTERVALUE_ITEM*>(pDisplayValuesOut);
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return -1;
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die:
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die(err);
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if (phQuery)
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PdhCloseQuery(phQuery);
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if (pDisplayValuesIn)
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delete reinterpret_cast<PDH_FMT_COUNTERVALUE_ITEM*>(pDisplayValuesIn);
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if (pDisplayValuesOut)
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delete reinterpret_cast<PDH_FMT_COUNTERVALUE_ITEM*>(pDisplayValuesOut);
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return 3;
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}
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BOOL mapSystemNamesToFamiliarNames(std::map<std::wstring, std::wstring>& mapNames)
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{
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DWORD dwSize = 0, dwRetVal = 0;
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ULONG family = AF_UNSPEC, flags = GAA_FLAG_INCLUDE_PREFIX,
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outBufLen = 0, Iterations = 0;
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LPVOID lpMsgBuf = NULL;
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PIP_ADAPTER_ADDRESSES pAddresses = NULL;
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PIP_ADAPTER_ADDRESSES pCurrAddresses = NULL;
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/*
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PIP_ADAPTER_UNICAST_ADDRESS pUnicast = NULL;
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PIP_ADAPTER_ANYCAST_ADDRESS pAnycast = NULL;
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PIP_ADAPTER_MULTICAST_ADDRESS pMulticast = NULL;
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PIP_ADAPTER_DNS_SERVER_ADDRESS pDnsServer = NULL;
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PIP_ADAPTER_PREFIX pPrefix = NULL;
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*/
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outBufLen = 15000; //15KB as suggestet by msdn of GetAdaptersAddresses
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if (debug)
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std::wcout << "Mapping adapter system names to friendly names\n";
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do {
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pAddresses = reinterpret_cast<PIP_ADAPTER_ADDRESSES>(new BYTE[outBufLen]);
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dwRetVal = GetAdaptersAddresses(family, flags, NULL, pAddresses, &outBufLen);
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if (dwRetVal == ERROR_BUFFER_OVERFLOW) {
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delete[]pAddresses;
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pAddresses = NULL;
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} else
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break;
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} while (++Iterations < 3);
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if (dwRetVal != NO_ERROR) {
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std::wcout << "Failed to collect friendly adapter names\n";
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delete[]pAddresses;
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return FALSE;
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}
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pCurrAddresses = pAddresses;
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std::wstringstream wssAdapterName;
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std::wstringstream wssFriendlyName;
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for (pCurrAddresses = pAddresses; pCurrAddresses; pCurrAddresses = pCurrAddresses->Next) {
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wssAdapterName.str(std::wstring());
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wssFriendlyName.str(std::wstring());
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wssAdapterName << pCurrAddresses->Description;
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wssFriendlyName << pCurrAddresses->FriendlyName;
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if (debug)
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std::wcout << "Got: " << wssAdapterName.str() << " -- " << wssFriendlyName.str() << '\n';
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mapNames.insert(std::pair<std::wstring, std::wstring>(wssAdapterName.str(), wssFriendlyName.str()));
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}
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delete[]pAddresses;
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return TRUE;
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}
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