1 files changed, 99 insertions, 0 deletions
diff --git a/src/detection/bluetoothradio/bluetoothradio_windows.c b/src/detection/bluetoothradio/bluetoothradio_windows.c
new file mode 100644
index 0000000..f0b55d4
--- /dev/null
+++ b/src/detection/bluetoothradio/bluetoothradio_windows.c
@@ -0,0 +1,99 @@
+#include "bluetoothradio.h"
+#include "common/library.h"
+#include "common/io.h"
+#include "common/windows/unicode.h"
+
+#include <windows.h>
+#include <bluetoothapis.h>
+#include <winioctl.h>
+
+// #include <bthioctl.h>
+
+#define BTH_IOCTL_BASE 0
+#define BTH_CTL(id) CTL_CODE(FILE_DEVICE_BLUETOOTH, (id), METHOD_BUFFERED, FILE_ANY_ACCESS)
+#define IOCTL_BTH_GET_LOCAL_INFO BTH_CTL(BTH_IOCTL_BASE + 0x00)
+#define LMP_LE_SUPPORTED(x) ((x >> 38) & 1)
+
+typedef struct _BTH_RADIO_INFO {
+    // Supported LMP features of the radio.  Use LMP_XXX() to extract
+    // the desired bits.
+    ULONGLONG lmpSupportedFeatures;
+
+    // Manufacturer ID (possibly BTH_MFG_XXX)
+    USHORT mfg;
+
+    // LMP subversion
+    USHORT lmpSubversion;
+
+    // LMP version
+    UCHAR lmpVersion;
+} FF_A_PACKED BTH_RADIO_INFO;
+
+typedef struct _BTH_LOCAL_RADIO_INFO {
+    // Local BTH_ADDR, class of device, and radio name
+    BTH_DEVICE_INFO localInfo;
+
+    // Combo of LOCAL_RADIO_XXX values
+    ULONG flags;
+
+    // HCI revision, see core spec
+    USHORT hciRevision;
+
+    // HCI version, see core spec
+    UCHAR hciVersion;
+
+    // More information about the local radio (LMP, MFG)
+    BTH_RADIO_INFO radioInfo;
+} FF_A_PACKED BTH_LOCAL_RADIO_INFO;
+static_assert(sizeof(BTH_LOCAL_RADIO_INFO) == 292, "BTH_LOCAL_RADIO_INFO should be 292 bytes");
+
+#pragma GCC diagnostic ignored "-Wpointer-sign"
+
+const char* ffDetectBluetoothRadio(FFlist* devices /* FFBluetoothRadioResult */) {
+    // Actually bluetoothapis.dll, but it's missing on Windows 7
+    FF_LIBRARY_LOAD_MESSAGE(bluetoothapis, "bluetoothapis.dll", 1)
+    FF_LIBRARY_LOAD_SYMBOL_MESSAGE(bluetoothapis, BluetoothFindFirstRadio)
+    FF_LIBRARY_LOAD_SYMBOL_MESSAGE(bluetoothapis, BluetoothFindNextRadio)
+    FF_LIBRARY_LOAD_SYMBOL_MESSAGE(bluetoothapis, BluetoothFindRadioClose)
+    FF_LIBRARY_LOAD_SYMBOL_MESSAGE(bluetoothapis, BluetoothIsConnectable)
+    FF_LIBRARY_LOAD_SYMBOL_MESSAGE(bluetoothapis, BluetoothIsDiscoverable)
+
+    HANDLE hRadio = NULL;
+    HBLUETOOTH_DEVICE_FIND hFind = ffBluetoothFindFirstRadio(&(BLUETOOTH_FIND_RADIO_PARAMS) {
+                                                                 .dwSize = sizeof(BLUETOOTH_FIND_RADIO_PARAMS) },
+        &hRadio);
+    if (!hFind) {
+        if (GetLastError() == ERROR_NO_MORE_ITEMS) {
+            return "No Bluetooth radios found or service disabled";
+        } else {
+            return "BluetoothFindFirstRadio() failed";
+        }
+    }
+
+    do {
+        BTH_LOCAL_RADIO_INFO blri;
+        DWORD returned;
+        if (!DeviceIoControl(hRadio, IOCTL_BTH_GET_LOCAL_INFO, NULL, 0, &blri, sizeof(blri), &returned, NULL)) {
+            continue;
+        }
+
+        FFBluetoothRadioResult* device = FF_LIST_ADD(FFBluetoothRadioResult, *devices);
+        ffStrbufInitS(&device->name, blri.localInfo.name);
+
+        BLUETOOTH_ADDRESS_STRUCT addr = { .ullLong = blri.localInfo.address };
+        ffStrbufInitF(&device->address, "%02X:%02X:%02X:%02X:%02X:%02X", addr.rgBytes[5], addr.rgBytes[4], addr.rgBytes[3], addr.rgBytes[2], addr.rgBytes[1], addr.rgBytes[0]);
+
+        device->lmpVersion = blri.radioInfo.lmpVersion;
+        device->lmpSubversion = blri.radioInfo.lmpSubversion;
+        ffStrbufInitStatic(&device->vendor, ffBluetoothRadioGetVendor(blri.radioInfo.mfg));
+        device->enabled = true;
+        device->connectable = ffBluetoothIsConnectable(hRadio);
+        device->discoverable = ffBluetoothIsDiscoverable(hRadio);
+
+        NtClose(hRadio);
+    } while (ffBluetoothFindNextRadio(hFind, &hRadio));
+
+    ffBluetoothFindRadioClose(hFind);
+
+    return NULL;
+}