mirror of https://github.com/Icinga/icinga2.git
401 lines
12 KiB
C++
401 lines
12 KiB
C++
/******************************************************************************
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* Icinga 2 *
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* Copyright (C) 2012-2018 Icinga Development Team (https://icinga.com/) *
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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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#include "plugins/thresholds.hpp"
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#include <boost/program_options.hpp>
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#include <iostream>
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#include <vector>
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#include <windows.h>
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#include <pdh.h>
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#include <pdhmsg.h>
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#include <shlwapi.h>
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#define VERSION 1.0
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namespace po = boost::program_options;
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struct printInfoStruct
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{
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threshold tWarn;
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threshold tCrit;
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std::wstring wsFullPath;
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double dValue;
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DWORD dwPerformanceWait = 1000;
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DWORD dwRequestedType = PDH_FMT_DOUBLE;
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};
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static bool parseArguments(const int ac, WCHAR **av, po::variables_map& vm, printInfoStruct& printInfo)
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{
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WCHAR szNamePath[MAX_PATH + 1];
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GetModuleFileName(NULL, szNamePath, MAX_PATH);
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WCHAR *szProgName = PathFindFileName(szNamePath);
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po::options_description desc("Options");
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desc.add_options()
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("help,h", "Print help page and exit")
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("version,V", "Print version and exit")
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("warning,w", po::wvalue<std::wstring>(), "Warning thershold")
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("critical,c", po::wvalue<std::wstring>(), "Critical threshold")
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("performance-counter,P", po::wvalue<std::wstring>(), "The performance counter string to use")
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("performance-wait", po::value<DWORD>(), "Sleep in milliseconds between the two perfomance querries (Default: 1000ms)")
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("fmt-countertype", po::wvalue<std::wstring>(), "Value type of counter: 'double'(default), 'long', 'int64'")
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("print-objects", "Prints all available objects to console")
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("print-object-info", "Prints all available instances and counters of --performance-counter, do not use a full perfomance counter string here")
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("perf-syntax", po::wvalue<std::wstring>(), "Use this string as name for the performance counter (graphite compatibility)")
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;
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po::wcommand_line_parser 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 (const std::exception& e) {
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std::cout << e.what() << '\n' << desc << '\n';
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return false;
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}
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if (vm.count("version")) {
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std::wcout << "Version: " << VERSION << '\n';
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return false;
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}
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if (vm.count("help")) {
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std::wcout << szProgName << " Help\n\tVersion: " << VERSION << '\n';
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wprintf(
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L"%s runs a check against a performance counter.\n"
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L"You can use the following options to define its behaviour:\n\n", szProgName);
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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"\tPERFMON CRITICAL \"\\Processor(_Total)\\%% Idle Time\" = 40.34 | "
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L"perfmon=40.34;20;40;; \"\\Processor(_Total)\\%% Idle Time\"=40.34\n\n"
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L"\"tPERFMON\" being the type of the check, \"CRITICAL\" the returned status\n"
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L"and \"40.34\" is the performance counters value.\n"
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L"%s' exit codes denote the following:\n"
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L" 0\tOK,\n\tNo Thresholds were exceeded\n"
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L" 1\tWARNING,\n\tThe warning was broken, but not the critical threshold\n"
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L" 2\tCRITICAL,\n\tThe critical threshold was broken\n"
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L" 3\tUNKNOWN, \n\tNo check could be performed\n\n"
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, szProgName);
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return false;
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}
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if (vm.count("warning")) {
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try {
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printInfo.tWarn = threshold(vm["warning"].as<std::wstring>());
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} catch (const std::invalid_argument& e) {
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std::wcout << e.what() << '\n';
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return false;
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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.tCrit = threshold(vm["critical"].as<std::wstring>());
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} catch (const std::invalid_argument& e) {
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std::wcout << e.what() << '\n';
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return false;
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}
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}
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if (vm.count("fmt-countertype")) {
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if (!vm["fmt-countertype"].as<std::wstring>().compare(L"int64"))
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printInfo.dwRequestedType = PDH_FMT_LARGE;
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else if (!vm["fmt-countertype"].as<std::wstring>().compare(L"long"))
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printInfo.dwRequestedType = PDH_FMT_LONG;
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else if (vm["fmt-countertype"].as<std::wstring>().compare(L"double")) {
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std::wcout << "Unknown value type " << vm["fmt-countertype"].as<std::wstring>() << '\n';
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return false;
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}
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}
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if (vm.count("performance-counter"))
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printInfo.wsFullPath = vm["performance-counter"].as<std::wstring>();
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if (vm.count("performance-wait"))
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printInfo.dwPerformanceWait = vm["performance-wait"].as<DWORD>();
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return true;
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}
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static bool getInstancesAndCountersOfObject(const std::wstring& wsObject,
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std::vector<std::wstring>& vecInstances, std::vector<std::wstring>& vecCounters)
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{
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DWORD dwCounterListLength = 0, dwInstanceListLength = 0;
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if (PdhEnumObjectItems(NULL, NULL, wsObject.c_str(),
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NULL, &dwCounterListLength, NULL,
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&dwInstanceListLength, PERF_DETAIL_WIZARD, 0) != PDH_MORE_DATA)
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return false;
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std::vector<WCHAR> mszCounterList(dwCounterListLength + 1);
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std::vector<WCHAR> mszInstanceList(dwInstanceListLength + 1);
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if (FAILED(PdhEnumObjectItems(NULL, NULL, wsObject.c_str(),
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mszCounterList.data(), &dwCounterListLength, mszInstanceList.data(),
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&dwInstanceListLength, PERF_DETAIL_WIZARD, 0))) {
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return false;
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}
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if (dwInstanceListLength) {
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std::wstringstream wssInstanceName;
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// XXX: is the "- 1" correct?
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for (DWORD c = 0; c < dwInstanceListLength - 1; ++c) {
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if (mszInstanceList[c])
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wssInstanceName << mszInstanceList[c];
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else {
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vecInstances.push_back(wssInstanceName.str());
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wssInstanceName.str(L"");
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}
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}
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}
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if (dwCounterListLength) {
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std::wstringstream wssCounterName;
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// XXX: is the "- 1" correct?
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for (DWORD c = 0; c < dwCounterListLength - 1; ++c) {
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if (mszCounterList[c])
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wssCounterName << mszCounterList[c];
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else {
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vecCounters.push_back(wssCounterName.str());
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wssCounterName.str(L"");
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}
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}
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}
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return true;
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}
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static void printPDHError(PDH_STATUS status)
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{
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HMODULE hPdhLibrary = NULL;
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LPWSTR pMessage = NULL;
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hPdhLibrary = LoadLibrary(L"pdh.dll");
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if (!hPdhLibrary) {
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std::wcout << "LoadLibrary failed with " << GetLastError() << '\n';
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return;
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}
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if (!FormatMessage(FORMAT_MESSAGE_FROM_HMODULE | FORMAT_MESSAGE_ALLOCATE_BUFFER | FORMAT_MESSAGE_ARGUMENT_ARRAY,
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hPdhLibrary, status, 0, (LPWSTR)&pMessage, 0, NULL)) {
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FreeLibrary(hPdhLibrary);
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std::wcout << "Format message failed with " << std::hex << GetLastError() << '\n';
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return;
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}
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FreeLibrary(hPdhLibrary);
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std::wcout << pMessage << '\n';
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LocalFree(pMessage);
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}
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static void printObjects()
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{
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DWORD dwBufferLength = 0;
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PDH_STATUS status = PdhEnumObjects(NULL, NULL, NULL,
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&dwBufferLength, PERF_DETAIL_WIZARD, FALSE);
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//HEX HEX! Only a Magicians gets all the info he wants, and only Microsoft knows what that means
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if (status != PDH_MORE_DATA) {
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printPDHError(status);
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return;
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}
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std::vector<WCHAR> mszObjectList(dwBufferLength + 2);
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status = PdhEnumObjects(NULL, NULL, mszObjectList.data(),
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&dwBufferLength, PERF_DETAIL_WIZARD, FALSE);
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if (FAILED(status)) {
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printPDHError(status);
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return;
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}
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DWORD c = 0;
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while (++c < dwBufferLength) {
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if (mszObjectList[c] == '\0')
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std::wcout << '\n';
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else
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std::wcout << mszObjectList[c];
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}
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}
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static void printObjectInfo(const printInfoStruct& pI)
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{
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if (pI.wsFullPath.empty()) {
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std::wcout << "No object given!\n";
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return;
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}
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std::vector<std::wstring> vecInstances, vecCounters;
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if (!getInstancesAndCountersOfObject(pI.wsFullPath, vecInstances, vecCounters)) {
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std::wcout << "Could not enumerate instances and counters of " << pI.wsFullPath << '\n'
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<< "Make sure it exists!\n";
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return;
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}
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std::wcout << "Instances of " << pI.wsFullPath << ":\n";
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if (vecInstances.empty())
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std::wcout << "> Has no instances\n";
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else {
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for (const auto& instance : vecInstances)
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std::wcout << "> " << instance << '\n';
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}
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std::wcout << std::endl;
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std::wcout << "Performance Counters of " << pI.wsFullPath << ":\n";
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if (vecCounters.empty())
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std::wcout << "> Has no counters\n";
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else {
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for (const auto& counter : vecCounters)
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std::wcout << "> " << counter << "\n";
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}
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std::wcout << std::endl;
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}
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bool QueryPerfData(printInfoStruct& pI)
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{
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PDH_HQUERY hQuery = NULL;
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PDH_HCOUNTER hCounter = NULL;
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DWORD dwBufferSize = 0, dwItemCount = 0;
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if (pI.wsFullPath.empty()) {
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std::wcout << "No performance counter path given!\n";
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return false;
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}
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PDH_FMT_COUNTERVALUE_ITEM *pDisplayValues = NULL;
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PDH_STATUS status = PdhOpenQuery(NULL, NULL, &hQuery);
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if (FAILED(status))
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goto die;
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status = PdhAddCounter(hQuery, pI.wsFullPath.c_str(), NULL, &hCounter);
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if (FAILED(status))
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goto die;
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status = PdhCollectQueryData(hQuery);
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if (FAILED(status))
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goto die;
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/*
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* Most counters need two queries to provide a value.
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* Those which need only one will return the second.
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*/
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Sleep(pI.dwPerformanceWait);
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status = PdhCollectQueryData(hQuery);
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if (FAILED(status))
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goto die;
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status = PdhGetFormattedCounterArray(hCounter, pI.dwRequestedType, &dwBufferSize, &dwItemCount, NULL);
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if (status != PDH_MORE_DATA)
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goto die;
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pDisplayValues = reinterpret_cast<PDH_FMT_COUNTERVALUE_ITEM*>(new BYTE[dwBufferSize]);
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status = PdhGetFormattedCounterArray(hCounter, pI.dwRequestedType, &dwBufferSize, &dwItemCount, pDisplayValues);
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if (FAILED(status))
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goto die;
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switch (pI.dwRequestedType) {
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case (PDH_FMT_LONG):
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pI.dValue = pDisplayValues[0].FmtValue.longValue;
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break;
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case (PDH_FMT_LARGE):
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pI.dValue = pDisplayValues[0].FmtValue.largeValue;
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break;
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default:
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pI.dValue = pDisplayValues[0].FmtValue.doubleValue;
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break;
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}
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delete[]pDisplayValues;
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return true;
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die:
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printPDHError(status);
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delete[]pDisplayValues;
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return false;
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}
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static int printOutput(const po::variables_map& vm, printInfoStruct& pi)
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{
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std::wstringstream wssPerfData;
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if (vm.count("perf-syntax"))
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wssPerfData << "'" << vm["perf-syntax"].as<std::wstring>() << "'=";
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else
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wssPerfData << "'" << pi.wsFullPath << "'=";
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wssPerfData << pi.dValue << ';' << pi.tWarn.pString() << ';' << pi.tCrit.pString() << ";;";
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if (pi.tCrit.rend(pi.dValue)) {
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std::wcout << "PERFMON CRITICAL for '" << (vm.count("perf-syntax") ? vm["perf-syntax"].as<std::wstring>() : pi.wsFullPath)
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<< "' = " << pi.dValue << " | " << wssPerfData.str() << "\n";
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return 2;
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}
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if (pi.tWarn.rend(pi.dValue)) {
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std::wcout << "PERFMON WARNING for '" << (vm.count("perf-syntax") ? vm["perf-syntax"].as<std::wstring>() : pi.wsFullPath)
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<< "' = " << pi.dValue << " | " << wssPerfData.str() << "\n";
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return 1;
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}
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std::wcout << "PERFMON OK for '" << (vm.count("perf-syntax") ? vm["perf-syntax"].as<std::wstring>() : pi.wsFullPath)
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<< "' = " << pi.dValue << " | " << wssPerfData.str() << "\n";
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return 0;
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}
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int wmain(int argc, WCHAR **argv)
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{
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po::variables_map variables_map;
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printInfoStruct stPrintInfo;
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if (!parseArguments(argc, argv, variables_map, stPrintInfo))
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return 3;
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if (variables_map.count("print-objects")) {
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printObjects();
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return 0;
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}
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if (variables_map.count("print-object-info")) {
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printObjectInfo(stPrintInfo);
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return 0;
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}
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if (QueryPerfData(stPrintInfo))
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return printOutput(variables_map, stPrintInfo);
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else
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return 3;
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}
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