Temps (Windows): dirty support

Note: https://stackoverflow.com/a/17083409

CMakeLists.txt

@@ -519,6 +519,7 @@ elseif(WIN32)
         src/detection/swap/swap_windows.cpp
         src/detection/terminalfont/terminalfont_windows.c
         src/detection/terminalshell/terminalshell_windows.cpp
+        src/detection/temps/temps_windows.cpp
         src/detection/uptime/uptime_windows.c
         src/detection/users/users_windows.c
         src/detection/wifi/wifi_windows.c

src/detection/cpu/cpu_windows.c

@@ -1,4 +1,5 @@
 #include "cpu.h"
+#include "detection/temps/temps_windows.h"
 #include "util/windows/registry.h"
 #include "util/mallocHelper.h"
 
@@ -46,4 +47,7 @@ void ffDetectCPUImpl(const FFinstance* instance, FFCPUResult* cpu)
 
     ffRegReadStrbuf(hKey, L"ProcessorNameString", &cpu->name, NULL);
     ffRegReadStrbuf(hKey, L"VendorIdentifier", &cpu->vendor, NULL);
+
+    if(instance->config.cpuTemp)
+        ffDetectSmbiosTemp(&cpu->temperature, NULL);
 }

src/detection/temps/temps_windows.cpp

@@ -0,0 +1,25 @@
+extern "C"
+{
+#include "temps_windows.h"
+}
+#include "util/windows/wmi.hpp"
+
+extern "C"
+const char* ffDetectSmbiosTemp(double* current, double* critical)
+{
+    // Requires Administrator priviledges
+    // https://wutils.com/wmi/root/wmi/msacpi_thermalzonetemperature/#properties
+    FFWmiQuery query(L"SELECT CurrentTemperature, CriticalTripPoint FROM MSAcpi_ThermalZoneTemperature WHERE Active = TRUE", nullptr, FFWmiNamespace::WMI);
+    if(!query)
+        return "Query WMI service failed";
+
+    if(FFWmiRecord record = query.next())
+    {
+        if (current && record.getReal(L"CurrentTemperature", current)) // In tenth of degrees Kelvin
+            *current = *current / 10 - 273.15;
+        if (critical && record.getReal(L"CriticalTripPoint", critical)) // In tenth of degrees Kelvin
+            *critical = *critical / 10 - 273.15;
+    }
+
+    return "No WMI result returned";
+}

src/detection/temps/temps_windows.h

@@ -0,0 +1,8 @@
+#pragma once
+
+#ifndef FF_INCLUDED_detection_temps_windows
+#define FF_INCLUDED_detection_temps_windows
+
+const char* ffDetectSmbiosTemp(double* current, double* critical);
+
+#endif