зеркало из https://github.com/mozilla/gecko-dev.git
Bug 600235 - Remove wifi scanning code on windows for versions less than XP SP3. r=shaver a=shaver
--HG-- extra : rebase_source : 44a3ebb42b991d777c55084870b938586f4812a0
This commit is contained in:
Doug Turner
Родитель
730f1be9d9
Коммит
c666ba9f46
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@ -64,7 +64,7 @@ ifeq ($(OS_ARCH),Darwin)
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CPPSRCS += nsWifiScannerMac.cpp
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CMMSRCS = osx_corewlan.mm
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else
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ifneq (,$(filter WINCE WINNT,$(OS_ARCH)))
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ifneq (,$(filter WINNT,$(OS_ARCH)))
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CPPSRCS += nsWifiScannerWin.cpp
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else
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ifeq ($(OS_ARCH),Linux)
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@ -55,505 +55,9 @@
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#include "nsComponentManagerUtils.h"
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#include "nsIMutableArray.h"
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#ifdef WINCE
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#include <Iphlpapi.h> // For GetAdaptersInfo()
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#include <nuiouser.h> // For NDISUIO stuff
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// GetAdaptersInfo
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typedef DWORD (*GETADAPTERSINFO)(PIP_ADAPTER_INFO pAdapterInfo, PULONG pOutBufLen);
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#endif
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// Taken from ndis.h
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#define NDIS_STATUS_INVALID_LENGTH ((NDIS_STATUS)0xC0010014L)
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#define NDIS_STATUS_BUFFER_TOO_SHORT ((NDIS_STATUS)0xC0010016L)
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static const int kStringLength = 512;
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// The limits on the size of the buffer used for the OID query.
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static const int kInitialBufferSize = 2 << 12; // Good for about 50 APs.
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static const int kMaximumBufferSize = 2 << 20; // 2MB
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static int oid_buffer_size_ = kStringLength;
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PRBool ResizeBuffer(int requested_size, BYTE **buffer)
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{
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if (requested_size > kMaximumBufferSize) {
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free(*buffer);
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*buffer = NULL;
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return false;
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}
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BYTE *new_buffer = (BYTE*)realloc(*buffer, requested_size);
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if (new_buffer == NULL) {
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free(*buffer);
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*buffer = NULL;
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return false;
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}
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*buffer = new_buffer;
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return true;
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}
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#ifdef WINCE
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int PerformQuery(HANDLE &ndis_handle,
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const TCHAR *device_name,
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BYTE *buffer,
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DWORD buffer_size,
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BYTE *&data,
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DWORD *bytes_out) {
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NS_ASSERTION(buffer, "Buffer is null. OOM?");
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if (!buffer)
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return ERROR_INSUFFICIENT_BUFFER;
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// Form the query parameters.
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NDISUIO_QUERY_OID *query = (NDISUIO_QUERY_OID*)(buffer);
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query->ptcDeviceName = const_cast<PTCHAR>(device_name);
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query->Oid = OID_802_11_BSSID_LIST;
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if (!DeviceIoControl(ndis_handle,
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IOCTL_NDISUIO_QUERY_OID_VALUE,
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query,
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sizeof(NDISUIO_QUERY_OID),
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query,
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buffer_size,
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bytes_out,
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NULL)) {
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return GetLastError();
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}
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// The start of the NDIS_802_11_BSSID_LIST is at Data[0]
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data = &query->Data[0];
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return ERROR_SUCCESS;
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}
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void GetNetworkInterfaces(GETADAPTERSINFO pGetAdaptersInfo, nsStringArray& interfaces){
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// Get the list of adapters. First determine the buffer size.
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ULONG buffer_size = 0;
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// since buffer_size is zero before this, we should get ERROR_BUFFER_OVERFLOW
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// after this error the value of buffer_size will reflect the size needed
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if (pGetAdaptersInfo(NULL, &buffer_size) != ERROR_BUFFER_OVERFLOW)
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return;
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// Allocate adapter_info with correct size.
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IP_ADAPTER_INFO *adapter_info = (IP_ADAPTER_INFO*)malloc(buffer_size);
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if (adapter_info == NULL){
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free (adapter_info);
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return;
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}
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if (pGetAdaptersInfo(adapter_info, &buffer_size) != ERROR_SUCCESS){
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free (adapter_info);
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return;
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}
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// Walk through the list of adapters.
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while (adapter_info) {
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// AdapterName e.g. TNETW12511
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nsString adapterName;
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// AdapterName is in ASCII
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adapterName.AppendWithConversion(adapter_info->AdapterName);
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interfaces.AppendString(adapterName);
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adapter_info = adapter_info->Next;
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}
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free (adapter_info);
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}
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nsresult SetupWince(HANDLE& ndis_handle, GETADAPTERSINFO& pGetAdaptersInfo){
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// Get the Network Driver Interface Specification (NDIS) handle for wireless
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// devices. NDIS defines a standard API for Network Interface Cards (NICs).
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// NDIS User Mode I/O (NDISUIO) is an NDIS protocol driver which offers
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// support for wireless devices.
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ndis_handle = CreateFile(NDISUIO_DEVICE_NAME, GENERIC_READ,
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FILE_SHARE_READ, NULL, OPEN_EXISTING,
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FILE_ATTRIBUTE_READONLY, NULL);
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if (INVALID_HANDLE_VALUE == ndis_handle)
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return NS_ERROR_FAILURE;
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HINSTANCE hIpDLL = LoadLibraryW(L"Iphlpapi.dll");
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if (!hIpDLL)
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return NS_ERROR_NOT_AVAILABLE;
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pGetAdaptersInfo = (GETADAPTERSINFO) GetProcAddress(hIpDLL, "GetAdaptersInfo");
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if (!pGetAdaptersInfo)
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return NS_ERROR_FAILURE;
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return NS_OK;
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}
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#else
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int PerformQuery(HANDLE adapter_handle,
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BYTE *buffer,
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DWORD buffer_size,
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DWORD *bytes_out) {
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DWORD oid = OID_802_11_BSSID_LIST;
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if (!DeviceIoControl(adapter_handle,
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IOCTL_NDIS_QUERY_GLOBAL_STATS,
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&oid,
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sizeof(oid),
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buffer,
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buffer_size,
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bytes_out,
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NULL)) {
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return GetLastError();
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}
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return ERROR_SUCCESS;
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}
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HANDLE GetFileHandle(const PRUnichar* device_name) {
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// We access a device with DOS path \Device\<device_name> at
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// \\.\<device_name>.
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nsString formatted_device_name;
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formatted_device_name.Assign(L"\\\\.\\");
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formatted_device_name.Append(device_name);
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return CreateFileW(formatted_device_name.get(),
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GENERIC_READ,
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FILE_SHARE_READ | FILE_SHARE_WRITE, // share mode
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0, // security attributes
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OPEN_EXISTING,
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0, // flags and attributes
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INVALID_HANDLE_VALUE);
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}
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bool UndefineDosDevice(const PRUnichar* device_name) {
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// We remove only the mapping we use, that is \Device\<device_name>.
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nsString target_path;
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target_path.Assign(L"\\Device\\");
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target_path.Append(device_name);
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return DefineDosDeviceW(DDD_RAW_TARGET_PATH | DDD_REMOVE_DEFINITION | DDD_EXACT_MATCH_ON_REMOVE,
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device_name,
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target_path.get()) == TRUE;
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}
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bool DefineDosDeviceIfNotExists(const PRUnichar* device_name, bool* dosDeviceDefined) {
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// We create a DOS device name for the device at \Device\<device_name>.
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nsString target_path;
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target_path.Assign(L"\\Device\\");
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target_path.Append(device_name);
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WCHAR target[kStringLength];
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if (QueryDosDeviceW(device_name, target, kStringLength) > 0 && target_path.Equals(target)) {
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// Device already exists.
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return true;
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}
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DWORD error = GetLastError();
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if (error != ERROR_FILE_NOT_FOUND) {
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return false;
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}
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if (!DefineDosDeviceW(DDD_RAW_TARGET_PATH,
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device_name,
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target_path.get())) {
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return false;
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}
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*dosDeviceDefined = true;
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// Check that the device is really there.
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return QueryDosDeviceW(device_name, target, kStringLength) > 0 &&
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target_path.Equals(target);
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}
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void GetNetworkInterfaces(nsStringArray& interfaces)
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{
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HKEY network_cards_key = NULL;
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if (RegOpenKeyExW(HKEY_LOCAL_MACHINE,
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L"Software\\Microsoft\\Windows NT\\CurrentVersion\\NetworkCards",
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0,
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KEY_READ,
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&network_cards_key) != ERROR_SUCCESS)
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{
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return;
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}
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for (int i = 0; ; ++i) {
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WCHAR name[kStringLength];
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DWORD name_size = kStringLength;
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FILETIME time;
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if (RegEnumKeyExW(network_cards_key,
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i,
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name,
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&name_size,
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NULL,
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NULL,
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NULL,
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&time) != ERROR_SUCCESS)
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{
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break;
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}
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HKEY hardware_key = NULL;
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if (RegOpenKeyExW(network_cards_key,
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name,
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0,
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KEY_READ,
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&hardware_key) != ERROR_SUCCESS)
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{
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break;
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}
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PRUnichar service_name[kStringLength];
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DWORD service_name_size = kStringLength;
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DWORD type = 0;
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if (RegQueryValueExW(hardware_key,
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L"ServiceName",
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NULL,
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&type,
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(LPBYTE)service_name,
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&service_name_size) == ERROR_SUCCESS) {
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interfaces.AppendString(nsString(service_name)); // is this allowed?
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}
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RegCloseKey(hardware_key);
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}
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RegCloseKey(network_cards_key);
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}
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PRBool IsRunningOnVista() {
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static DWORD os_major_version = 0;
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static DWORD platform_id = 0;
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if (0 == os_major_version) {
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OSVERSIONINFO os_version = {0};
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os_version.dwOSVersionInfoSize = sizeof(os_version);
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GetVersionEx(&os_version);
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os_major_version = os_version.dwMajorVersion;
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platform_id = os_version.dwPlatformId;
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}
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return (6 == os_major_version) && (VER_PLATFORM_WIN32_NT == platform_id);
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}
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#endif
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nsresult
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nsWifiMonitor::DoScan()
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{
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#ifndef WINCE
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if (!IsRunningOnVista()) {
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#else
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HANDLE ndis_handle;
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GETADAPTERSINFO pGetAdaptersInfo;
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nsresult rc = SetupWince(ndis_handle, pGetAdaptersInfo);
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if (rc != NS_OK)
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return rc;
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#endif
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nsCOMArray<nsWifiAccessPoint> lastAccessPoints;
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nsCOMArray<nsWifiAccessPoint> accessPoints;
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do {
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accessPoints.Clear();
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nsStringArray interfaces;
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#ifdef WINCE
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GetNetworkInterfaces(pGetAdaptersInfo, interfaces);
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#else
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GetNetworkInterfaces(interfaces);
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#endif
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for (int i = 0; i < interfaces.Count(); i++) {
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nsString *s = interfaces.StringAt(i);
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const PRUnichar *service_name = s->get();
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#ifndef WINCE
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bool dosDeviceDefined = false;
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if (!DefineDosDeviceIfNotExists(service_name, &dosDeviceDefined))
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continue;
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// Get the handle to the device. This will fail if the named device is not
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// valid.
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HANDLE adapter_handle = GetFileHandle(service_name);
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if (adapter_handle == INVALID_HANDLE_VALUE)
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continue;
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#else
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BYTE *data; // will store address of NDIS_802_11_BSSID_LIST data
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#endif
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// Get the data.
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BYTE *buffer = (BYTE*)malloc(oid_buffer_size_);
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if (buffer == NULL) {
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#ifdef WINCE
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CloseHandle(ndis_handle);
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#endif
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return NS_ERROR_OUT_OF_MEMORY;
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}
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DWORD bytes_out;
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int result;
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while (true) {
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NS_ASSERTION(buffer && oid_buffer_size_ > 0, "buffer must not be null, and the size must be larger than 0");
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bytes_out = 0;
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#ifdef WINCE
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result = PerformQuery(ndis_handle, service_name, buffer, oid_buffer_size_, data, &bytes_out);
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#else
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result = PerformQuery(adapter_handle, buffer, oid_buffer_size_, &bytes_out);
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#endif
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if (result == ERROR_GEN_FAILURE || // Returned by some Intel cards.
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result == ERROR_INVALID_USER_BUFFER || // Returned on the Samsung Omnia II.
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result == ERROR_INSUFFICIENT_BUFFER ||
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result == ERROR_MORE_DATA ||
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result == NDIS_STATUS_INVALID_LENGTH ||
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result == NDIS_STATUS_BUFFER_TOO_SHORT) {
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// The buffer we supplied is too small, so increase it. bytes_out should
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// provide the required buffer size, but this is not always the case.
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if (bytes_out > static_cast<DWORD>(oid_buffer_size_)) {
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oid_buffer_size_ = bytes_out;
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} else {
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oid_buffer_size_ *= 2;
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}
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|
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if (!ResizeBuffer(oid_buffer_size_, &buffer)) {
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oid_buffer_size_ = kInitialBufferSize; // Reset for next time.
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continue;
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}
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} else {
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// The buffer is not too small.
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break;
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}
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}
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if (result == ERROR_SUCCESS) {
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#ifdef WINCE
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NDIS_802_11_BSSID_LIST* bssid_list = (NDIS_802_11_BSSID_LIST*)data;
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#else
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NDIS_802_11_BSSID_LIST* bssid_list = (NDIS_802_11_BSSID_LIST*)buffer;
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#endif
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// Walk through the BSS IDs.
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const uint8 *iterator = (const uint8*)&bssid_list->Bssid[0];
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const uint8 *end_of_buffer = (const uint8*)buffer + oid_buffer_size_;
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for (int i = 0; i < static_cast<int>(bssid_list->NumberOfItems); ++i) {
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const NDIS_WLAN_BSSID *bss_id = (const NDIS_WLAN_BSSID*)iterator;
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// Check that the length of this BSS ID is reasonable.
|
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if (bss_id->Length < sizeof(NDIS_WLAN_BSSID) ||
|
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iterator + bss_id->Length > end_of_buffer) {
|
||||
break;
|
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}
|
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|
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nsWifiAccessPoint* ap = new nsWifiAccessPoint();
|
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if (!ap)
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continue;
|
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|
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ap->setMac(bss_id->MacAddress);
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ap->setSignal(bss_id->Rssi);
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ap->setSSID((char*) bss_id->Ssid.Ssid, bss_id->Ssid.SsidLength);
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|
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accessPoints.AppendObject(ap);
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|
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// Move to the next BSS ID.
|
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iterator += bss_id->Length;
|
||||
}
|
||||
|
||||
free(buffer);
|
||||
|
||||
// Clean up.
|
||||
#ifndef WINCE
|
||||
CloseHandle(adapter_handle);
|
||||
#endif
|
||||
}
|
||||
|
||||
#ifndef WINCE
|
||||
if (dosDeviceDefined)
|
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UndefineDosDevice(service_name);
|
||||
#endif
|
||||
}
|
||||
|
||||
PRBool accessPointsChanged = !AccessPointsEqual(accessPoints, lastAccessPoints);
|
||||
nsCOMArray<nsIWifiListener> currentListeners;
|
||||
|
||||
{
|
||||
nsAutoMonitor mon(mMonitor);
|
||||
|
||||
for (PRUint32 i = 0; i < mListeners.Length(); i++) {
|
||||
if (!mListeners[i].mHasSentData || accessPointsChanged) {
|
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mListeners[i].mHasSentData = PR_TRUE;
|
||||
currentListeners.AppendObject(mListeners[i].mListener);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
ReplaceArray(lastAccessPoints, accessPoints);
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|
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if (currentListeners.Count() > 0) {
|
||||
|
||||
PRUint32 resultCount = lastAccessPoints.Count();
|
||||
nsIWifiAccessPoint** result = static_cast<nsIWifiAccessPoint**> (nsMemory::Alloc(sizeof(nsIWifiAccessPoint*) * resultCount));
|
||||
if (!result) {
|
||||
#ifdef WINCE
|
||||
CloseHandle(ndis_handle);
|
||||
#endif
|
||||
return NS_ERROR_OUT_OF_MEMORY;
|
||||
}
|
||||
|
||||
for (PRUint32 i = 0; i < resultCount; i++)
|
||||
result[i] = lastAccessPoints[i];
|
||||
|
||||
for (PRInt32 i = 0; i < currentListeners.Count(); i++) {
|
||||
|
||||
LOG(("About to send data to the wifi listeners\n"));
|
||||
|
||||
nsCOMPtr<nsIWifiListener> proxy;
|
||||
nsCOMPtr<nsIProxyObjectManager> proxyObjMgr = do_GetService("@mozilla.org/xpcomproxy;1");
|
||||
proxyObjMgr->GetProxyForObject(NS_PROXY_TO_MAIN_THREAD,
|
||||
NS_GET_IID(nsIWifiListener),
|
||||
currentListeners[i],
|
||||
NS_PROXY_SYNC | NS_PROXY_ALWAYS,
|
||||
getter_AddRefs(proxy));
|
||||
if (!proxy) {
|
||||
LOG(("There is no proxy available. this should never happen\n"));
|
||||
}
|
||||
else
|
||||
{
|
||||
nsresult rv = proxy->OnChange(result, resultCount);
|
||||
LOG( ("... sent %d\n", rv));
|
||||
}
|
||||
}
|
||||
|
||||
nsMemory::Free(result);
|
||||
}
|
||||
|
||||
// wait for some reasonable amount of time. pref?
|
||||
LOG(("waiting on monitor\n"));
|
||||
|
||||
nsAutoMonitor mon(mMonitor);
|
||||
mon.Wait(PR_SecondsToInterval(60));
|
||||
}
|
||||
while (mKeepGoing);
|
||||
|
||||
|
||||
|
||||
#ifdef WINCE
|
||||
//Clean up
|
||||
CloseHandle(ndis_handle);
|
||||
#else
|
||||
}
|
||||
else {
|
||||
|
||||
HINSTANCE wlan_library = LoadLibrary("Wlanapi.dll");
|
||||
if (!wlan_library)
|
||||
return NS_ERROR_NOT_AVAILABLE;
|
||||
|
|
@ -702,6 +206,5 @@ nsWifiMonitor::DoScan()
|
|||
}
|
||||
while (mKeepGoing);
|
||||
}
|
||||
#endif
|
||||
return NS_OK;
|
||||
}
|
||||
|
|
|
|||
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