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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 12:34:54 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-28 12:34:54 +0000 |
commit | 0915b3ef56dfac3113cce55a59a5765dc94976be (patch) | |
tree | a8fea11d50b4f083e1bf0f90025ece7f0824784a /plugins/check_network.cpp | |
parent | Initial commit. (diff) | |
download | icinga2-0915b3ef56dfac3113cce55a59a5765dc94976be.tar.xz icinga2-0915b3ef56dfac3113cce55a59a5765dc94976be.zip |
Adding upstream version 2.13.6.upstream/2.13.6upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'plugins/check_network.cpp')
-rw-r--r-- | plugins/check_network.cpp | 374 |
1 files changed, 374 insertions, 0 deletions
diff --git a/plugins/check_network.cpp b/plugins/check_network.cpp new file mode 100644 index 0000000..e21607a --- /dev/null +++ b/plugins/check_network.cpp @@ -0,0 +1,374 @@ +/* Icinga 2 | (c) 2012 Icinga GmbH | GPLv2+ */ + +#define WIN32_LEAN_AND_MEAN + +#include "plugins/thresholds.hpp" +#include <boost/program_options.hpp> +#include <boost/algorithm/string/replace.hpp> +#include <vector> +#include <map> +#include <windows.h> +#include <pdh.h> +#include <shlwapi.h> +#include <iostream> +#include <pdhmsg.h> +#include <winsock2.h> +#include <iphlpapi.h> + +#define VERSION 1.2 + +namespace po = boost::program_options; + +struct nInterface +{ + std::wstring name; + LONG BytesInSec, BytesOutSec; + nInterface(std::wstring p) + : name(p) + { } +}; + +struct printInfoStruct +{ + threshold warn; + threshold crit; +}; + +static bool l_Debug; +static bool l_NoISATAP; + +static int parseArguments(int ac, WCHAR **av, po::variables_map& vm, printInfoStruct& printInfo) +{ + WCHAR namePath[MAX_PATH]; + GetModuleFileName(NULL, namePath, MAX_PATH); + WCHAR *progName = PathFindFileName(namePath); + + po::options_description desc("Options"); + + desc.add_options() + ("help,h", "print usage and exit") + ("version,V", "print version and exit") + ("debug,d", "Verbose/Debug output") + ("noisatap,n", "Don't show ISATAP interfaces in output") + ("warning,w", po::wvalue<std::wstring>(), "warning value") + ("critical,c", po::wvalue<std::wstring>(), "critical value") + ; + + po::wcommand_line_parser parser(ac, av); + + try { + po::store( + parser + .options(desc) + .style( + po::command_line_style::unix_style | + po::command_line_style::allow_long_disguise) + .run(), + vm); + vm.notify(); + } catch (const std::exception& e) { + std::cout << e.what() << '\n' << desc << '\n'; + return 3; + } + + if (vm.count("help")) { + std::wcout << progName << " Help\n\tVersion: " << VERSION << '\n'; + wprintf( + L"%s is a simple program to check a machines network performance.\n" + L"You can use the following options to define its behaviour:\n\n", progName); + std::cout << desc; + wprintf( + L"\nIt will then output a string looking something like this:\n\n" + L"\tNETWORK WARNING 1131B/s | network=1131B;1000;7000;0\n\n" + L"\"NETWORK\" being the type of the check, \"WARNING\" the returned status\n" + L"and \"1131B/s\" is the returned value.\n" + L"The performance data is found behind the \"|\", in order:\n" + L"returned value, warning threshold, critical threshold, minimal value and,\n" + L"if applicable, the maximal value. Performance data will only be displayed when\n" + L"you set at least one threshold\n\n" + L"This program will also print out additional performance data interface\n" + L"by interface\n\n" + L"%s' exit codes denote the following:\n" + L" 0\tOK,\n\tNo Thresholds were broken or the programs check part was not executed\n" + L" 1\tWARNING,\n\tThe warning, but not the critical threshold was broken\n" + L" 2\tCRITICAL,\n\tThe critical threshold was broken\n" + L" 3\tUNKNOWN, \n\tThe program experienced an internal or input error\n\n" + L"Threshold syntax:\n\n" + L"-w THRESHOLD\n" + L"warn if threshold is broken, which means VALUE > THRESHOLD\n" + L"(unless stated differently)\n\n" + L"-w !THRESHOLD\n" + L"inverts threshold check, VALUE < THRESHOLD (analogous to above)\n\n" + L"-w [THR1-THR2]\n" + L"warn is VALUE is inside the range spanned by THR1 and THR2\n\n" + L"-w ![THR1-THR2]\n" + L"warn if VALUE is outside the range spanned by THR1 and THR2\n\n" + L"All of these options work with the critical threshold \"-c\" too." + , progName); + std::cout << '\n'; + return 0; + } + + if (vm.count("version")) + std::cout << "Version: " << VERSION << '\n'; + + if (vm.count("warning")) { + try { + printInfo.warn = threshold(vm["warning"].as<std::wstring>()); + } catch (const std::invalid_argument& e) { + std::cout << e.what() << '\n'; + return 3; + } + } + if (vm.count("critical")) { + try { + printInfo.crit = threshold(vm["critical"].as<std::wstring>()); + } catch (const std::invalid_argument& e) { + std::cout << e.what() << '\n'; + return 3; + } + } + + l_Debug = vm.count("debug") > 0; + l_NoISATAP = vm.count("noisatap") > 0; + + return -1; +} + +static int printOutput(printInfoStruct& printInfo, const std::vector<nInterface>& vInterfaces, const std::map<std::wstring, std::wstring>& mapNames) +{ + if (l_Debug) + std::wcout << L"Constructing output string" << '\n'; + + long tIn = 0, tOut = 0; + std::wstringstream tss; + state state = OK; + + std::map<std::wstring, std::wstring>::const_iterator mapIt; + std::wstring wsFriendlyName; + + for (std::vector<nInterface>::const_iterator it = vInterfaces.begin(); it != vInterfaces.end(); ++it) { + tIn += it->BytesInSec; + tOut += it->BytesOutSec; + if (l_Debug) + std::wcout << "Getting friendly name of " << it->name << '\n'; + mapIt = mapNames.find(it->name); + if (mapIt != mapNames.end()) { + if (l_Debug) + std::wcout << "\tIs " << mapIt->second << '\n'; + wsFriendlyName = mapIt->second; + } else { + if (l_Debug) + std::wcout << "\tNo friendly name found, using adapter name\n"; + wsFriendlyName = it->name; + } + if (wsFriendlyName.find(L"isatap") != std::wstring::npos && l_NoISATAP) { + if (l_Debug) + std::wcout << "\tSkipping isatap interface " << wsFriendlyName << "\n"; + continue; + } else { + boost::algorithm::replace_all(wsFriendlyName, "'", "''"); + tss << L"'" << wsFriendlyName << L"_in'=" << it->BytesInSec << L"B '" << wsFriendlyName << L"_out'=" << it->BytesOutSec << L"B "; + } + } + + if (printInfo.warn.rend(tIn + tOut)) + state = WARNING; + if (printInfo.crit.rend(tIn + tOut)) + state = CRITICAL; + + std::wcout << "NETWORK "; + + switch (state) { + case OK: + std::wcout << L"OK"; + break; + case WARNING: + std::wcout << L"WARNING"; + break; + case CRITICAL: + std::wcout << L"CRITICAL"; + break; + } + + std::wcout << " " << tIn + tOut << L"B/s | " + << L"'network'=" << tIn + tOut << L"B;" << printInfo.warn.pString() << L";" << printInfo.crit.pString() << L";" << L"0; " + << L"'network_in'=" << tIn << L"B 'network_out'=" << tOut << L"B " + << tss.str() << '\n'; + + return state; +} + +static int check_network(std::vector<nInterface>& vInterfaces) +{ + + if (l_Debug) + std::wcout << L"Creating Query and adding counters" << '\n'; + + PDH_FMT_COUNTERVALUE_ITEM *pDisplayValuesIn = NULL, *pDisplayValuesOut = NULL; + + PDH_HQUERY phQuery; + PDH_STATUS err = PdhOpenQuery(NULL, NULL, &phQuery); + if (!SUCCEEDED(err)) + goto die; + + const WCHAR *perfIn = L"\\Network Interface(*)\\Bytes Received/sec"; + PDH_HCOUNTER phCounterIn; + err = PdhAddEnglishCounter(phQuery, perfIn, NULL, &phCounterIn); + if (!SUCCEEDED(err)) + goto die; + + const WCHAR *perfOut = L"\\Network Interface(*)\\Bytes Sent/sec"; + PDH_HCOUNTER phCounterOut; + err = PdhAddEnglishCounter(phQuery, perfOut, NULL, &phCounterOut); + if (!SUCCEEDED(err)) + goto die; + + if (l_Debug) + std::wcout << L"Collecting first batch of query data" << '\n'; + + err = PdhCollectQueryData(phQuery); + if (!SUCCEEDED(err)) + goto die; + + if (l_Debug) + std::wcout << L"Sleep for one second" << '\n'; + + Sleep(1000); + + if (l_Debug) + std::wcout << L"Collecting second batch of query data" << '\n'; + + err = PdhCollectQueryData(phQuery); + if (!SUCCEEDED(err)) + goto die; + + if (l_Debug) + std::wcout << L"Creating formatted counter arrays" << '\n'; + + DWORD dwItemCount; + DWORD dwBufferSizeIn = 0; + err = PdhGetFormattedCounterArray(phCounterIn, PDH_FMT_LONG, &dwBufferSizeIn, &dwItemCount, pDisplayValuesIn); + if (err == PDH_MORE_DATA || SUCCEEDED(err)) + pDisplayValuesIn = reinterpret_cast<PDH_FMT_COUNTERVALUE_ITEM*>(new BYTE[dwItemCount*dwBufferSizeIn]); + else + goto die; + + DWORD dwBufferSizeOut = 0; + err = PdhGetFormattedCounterArray(phCounterOut, PDH_FMT_LONG, &dwBufferSizeOut, &dwItemCount, pDisplayValuesOut); + if (err == PDH_MORE_DATA || SUCCEEDED(err)) + pDisplayValuesOut = reinterpret_cast<PDH_FMT_COUNTERVALUE_ITEM*>(new BYTE[dwItemCount*dwBufferSizeIn]); + else + goto die; + + err = PdhGetFormattedCounterArray(phCounterIn, PDH_FMT_LONG, &dwBufferSizeIn, &dwItemCount, pDisplayValuesIn); + if (!SUCCEEDED(err)) + goto die; + + err = PdhGetFormattedCounterArray(phCounterOut, PDH_FMT_LONG, &dwBufferSizeOut, &dwItemCount, pDisplayValuesOut); + if (!SUCCEEDED(err)) + goto die; + + if (l_Debug) + std::wcout << L"Going over counter array" << '\n'; + + for (DWORD i = 0; i < dwItemCount; i++) { + nInterface iface{pDisplayValuesIn[i].szName}; + iface.BytesInSec = pDisplayValuesIn[i].FmtValue.longValue; + iface.BytesOutSec = pDisplayValuesOut[i].FmtValue.longValue; + vInterfaces.push_back(iface); + + if (l_Debug) + std::wcout << L"Collected interface " << pDisplayValuesIn[i].szName << '\n'; + } + + if (l_Debug) + std::wcout << L"Finished collection. Cleaning up and returning" << '\n'; + + if (phQuery) + PdhCloseQuery(phQuery); + + delete reinterpret_cast<BYTE *>(pDisplayValuesIn); + delete reinterpret_cast<BYTE *>(pDisplayValuesOut); + + return -1; +die: + printErrorInfo(err); + if (phQuery) + PdhCloseQuery(phQuery); + + delete reinterpret_cast<BYTE *>(pDisplayValuesIn); + delete reinterpret_cast<BYTE *>(pDisplayValuesOut); + + return 3; +} + +static bool mapSystemNamesToFamiliarNames(std::map<std::wstring, std::wstring>& mapNames) +{ + /* + PIP_ADAPTER_UNICAST_ADDRESS pUnicast = NULL; + PIP_ADAPTER_ANYCAST_ADDRESS pAnycast = NULL; + PIP_ADAPTER_MULTICAST_ADDRESS pMulticast = NULL; + PIP_ADAPTER_DNS_SERVER_ADDRESS pDnsServer = NULL; + PIP_ADAPTER_PREFIX pPrefix = NULL; + */ + ULONG outBufLen = 15000; //15KB as suggestet by msdn of GetAdaptersAddresses + + if (l_Debug) + std::wcout << "Mapping adapter system names to friendly names\n"; + + PIP_ADAPTER_ADDRESSES pAddresses; + + unsigned int Iterations = 0; + DWORD dwRetVal = 0; + + do { + pAddresses = reinterpret_cast<PIP_ADAPTER_ADDRESSES>(new BYTE[outBufLen]); + + dwRetVal = GetAdaptersAddresses(AF_UNSPEC, GAA_FLAG_INCLUDE_PREFIX, NULL, pAddresses, &outBufLen); + + if (dwRetVal == ERROR_BUFFER_OVERFLOW) { + delete[]pAddresses; + pAddresses = NULL; + } else + break; + } while (++Iterations < 3); + + if (dwRetVal != NO_ERROR) { + std::wcout << "Failed to collect friendly adapter names\n"; + delete[]pAddresses; + return false; + } + + for (PIP_ADAPTER_ADDRESSES pCurrAddresses = pAddresses; pCurrAddresses; pCurrAddresses = pCurrAddresses->Next) { + if (l_Debug) + std::wcout << "Got: " << pCurrAddresses->Description << " -- " << pCurrAddresses->FriendlyName << '\n'; + + mapNames[pCurrAddresses->Description] = pCurrAddresses->FriendlyName; + } + + delete[]pAddresses; + return true; +} + +int wmain(int argc, WCHAR **argv) +{ + std::vector<nInterface> vInterfaces; + std::map<std::wstring, std::wstring> mapNames; + printInfoStruct printInfo; + po::variables_map vm; + + int ret = parseArguments(argc, argv, vm, printInfo); + + if (ret != -1) + return ret; + + if (!mapSystemNamesToFamiliarNames(mapNames)) + return 3; + + ret = check_network(vInterfaces); + if (ret != -1) + return ret; + + return printOutput(printInfo, vInterfaces, mapNames); +} |