driver_ndis.c

最新的Host AP 新添加了许多pcmcia 的驱动

		pos = (WCHAR *) ((char *) b + b->DeviceNameOffset);
		len = b->DeviceNameLength;
		if (len >= sizeof(name))
			len = sizeof(name) - 1;
		for (j = 0; j < len; j++)
			name[j] = (char) pos[j];
		name[len] = '\0';

		pos = (WCHAR *) ((char *) b + b->DeviceDescrOffset);
		len = b->DeviceDescrLength;
		if (len >= sizeof(desc))
			len = sizeof(desc) - 1;
		for (j = 0; j < len; j++)
			desc[j] = (char) pos[j];
		desc[len] = '\0';

		wpa_printf(MSG_DEBUG, "NDIS: %d - %s - %s", i, name, desc);

		if (os_strstr(name, drv->ifname)) {
			wpa_printf(MSG_DEBUG, "NDIS: Interface name match");
			found = 1;
			break;
		}

		if (os_strncmp(desc, drv->ifname, os_strlen(drv->ifname)) == 0)
		{
			wpa_printf(MSG_DEBUG, "NDIS: Interface description "
				   "match");
			found = 1;
			break;
		}
	}

	if (!found) {
		wpa_printf(MSG_DEBUG, "NDIS: Could not find interface '%s'",
			   drv->ifname);
		os_free(b);
		return -1;
	}

	os_strlcpy(drv->ifname,
		   os_strncmp(name, "\\DEVICE\\", 8) == 0 ? name + 8 : name,
		   sizeof(drv->ifname));
#ifdef _WIN32_WCE
	drv->adapter_name = wpa_strdup_tchar(drv->ifname);
	if (drv->adapter_name == NULL) {
		wpa_printf(MSG_ERROR, "NDIS: Failed to allocate memory for "
			   "adapter name");
		os_free(b);
		return -1;
	}
#endif /* _WIN32_WCE */

	dpos = os_strstr(desc, " - ");
	if (dpos)
		dlen = dpos - desc;
	else
		dlen = os_strlen(desc);
	drv->adapter_desc = os_malloc(dlen + 1);
	if (drv->adapter_desc) {
		os_memcpy(drv->adapter_desc, desc, dlen);
		drv->adapter_desc[dlen] = '\0';
	}

	os_free(b);

	if (drv->adapter_desc == NULL)
		return -1;

	wpa_printf(MSG_DEBUG, "NDIS: Adapter description prefix '%s'",
		   drv->adapter_desc);

	return 0;
#else /* CONFIG_USE_NDISUIO */
	PTSTR _names;
	char *names, *pos, *pos2;
	ULONG len;
	BOOLEAN res;
#define MAX_ADAPTERS 32
	char *name[MAX_ADAPTERS];
	char *desc[MAX_ADAPTERS];
	int num_name, num_desc, i, found_name, found_desc;
	size_t dlen;

	wpa_printf(MSG_DEBUG, "NDIS: Packet.dll version: %s",
		   PacketGetVersion());

	len = 8192;
	_names = os_zalloc(len);
	if (_names == NULL)
		return -1;

	res = PacketGetAdapterNames(_names, &len);
	if (!res && len > 8192) {
		os_free(_names);
		_names = os_zalloc(len);
		if (_names == NULL)
			return -1;
		res = PacketGetAdapterNames(_names, &len);
	}

	if (!res) {
		wpa_printf(MSG_ERROR, "NDIS: Failed to get adapter list "
			   "(PacketGetAdapterNames)");
		os_free(_names);
		return -1;
	}

	names = (char *) _names;
	if (names[0] && names[1] == '\0' && names[2] && names[3] == '\0') {
		wpa_printf(MSG_DEBUG, "NDIS: Looks like adapter names are in "
			   "UNICODE");
		/* Convert to ASCII */
		pos2 = pos = names;
		while (pos2 < names + len) {
			if (pos2[0] == '\0' && pos2[1] == '\0' &&
			    pos2[2] == '\0' && pos2[3] == '\0') {
				pos2 += 4;
				break;
			}
			*pos++ = pos2[0];
			pos2 += 2;
		}
		os_memcpy(pos + 2, names, pos - names);
		pos += 2;
	} else
		pos = names;

	num_name = 0;
	while (pos < names + len) {
		name[num_name] = pos;
		while (*pos && pos < names + len)
			pos++;
		if (pos + 1 >= names + len) {
			os_free(names);
			return -1;
		}
		pos++;
		num_name++;
		if (num_name >= MAX_ADAPTERS) {
			wpa_printf(MSG_DEBUG, "NDIS: Too many adapters");
			os_free(names);
			return -1;
		}
		if (*pos == '\0') {
			wpa_printf(MSG_DEBUG, "NDIS: %d adapter names found",
				   num_name);
			pos++;
			break;
		}
	}

	num_desc = 0;
	while (pos < names + len) {
		desc[num_desc] = pos;
		while (*pos && pos < names + len)
			pos++;
		if (pos + 1 >= names + len) {
			os_free(names);
			return -1;
		}
		pos++;
		num_desc++;
		if (num_desc >= MAX_ADAPTERS) {
			wpa_printf(MSG_DEBUG, "NDIS: Too many adapter "
				   "descriptions");
			os_free(names);
			return -1;
		}
		if (*pos == '\0') {
			wpa_printf(MSG_DEBUG, "NDIS: %d adapter descriptions "
				   "found", num_name);
			pos++;
			break;
		}
	}

	/*
	 * Windows 98 with Packet.dll 3.0 alpha3 does not include adapter
	 * descriptions. Fill in dummy descriptors to work around this.
	 */
	while (num_desc < num_name)
		desc[num_desc++] = "dummy description";

	if (num_name != num_desc) {
		wpa_printf(MSG_DEBUG, "NDIS: mismatch in adapter name and "
			   "description counts (%d != %d)",
			   num_name, num_desc);
		os_free(names);
		return -1;
	}

	found_name = found_desc = -1;
	for (i = 0; i < num_name; i++) {
		wpa_printf(MSG_DEBUG, "NDIS: %d - %s - %s",
			   i, name[i], desc[i]);
		if (found_name == -1 && os_strstr(name[i], drv->ifname))
			found_name = i;
		if (found_desc == -1 &&
		    os_strncmp(desc[i], drv->ifname, os_strlen(drv->ifname)) ==
		    0)
			found_desc = i;
	}

	if (found_name < 0 && found_desc >= 0) {
		wpa_printf(MSG_DEBUG, "NDIS: Matched interface '%s' based on "
			   "description '%s'",
			   name[found_desc], desc[found_desc]);
		found_name = found_desc;
		os_strlcpy(drv->ifname,
			   os_strncmp(name[found_desc], "\\Device\\NPF_", 12)
			   == 0 ? name[found_desc] + 12 : name[found_desc],
			   sizeof(drv->ifname));
	}

	if (found_name < 0) {
		wpa_printf(MSG_DEBUG, "NDIS: Could not find interface '%s'",
			   drv->ifname);
		os_free(names);
		return -1;
	}

	i = found_name;
	pos = os_strrchr(desc[i], '(');
	if (pos) {
		dlen = pos - desc[i];
		pos--;
		if (pos > desc[i] && *pos == ' ')
			dlen--;
	} else {
		dlen = os_strlen(desc[i]);
	}
	drv->adapter_desc = os_malloc(dlen + 1);
	if (drv->adapter_desc) {
		os_memcpy(drv->adapter_desc, desc[i], dlen);
		drv->adapter_desc[dlen] = '\0';
	}

	os_free(names);

	if (drv->adapter_desc == NULL)
		return -1;

	wpa_printf(MSG_DEBUG, "NDIS: Adapter description prefix '%s'",
		   drv->adapter_desc);

	return 0;
#endif /* CONFIG_USE_NDISUIO */
}


#if defined(CONFIG_NATIVE_WINDOWS) || defined(__CYGWIN__)
#ifndef _WIN32_WCE
/*
 * These structures are undocumented for WinXP; only WinCE version is
 * documented. These would be included wzcsapi.h if it were available. Some
 * changes here have been needed to make the structures match with WinXP SP2.
 * It is unclear whether these work with any other version.
 */

typedef struct {
	LPWSTR wszGuid;
} INTF_KEY_ENTRY, *PINTF_KEY_ENTRY;

typedef struct {
	DWORD dwNumIntfs;
	PINTF_KEY_ENTRY pIntfs;
} INTFS_KEY_TABLE, *PINTFS_KEY_TABLE;

typedef struct {
	DWORD dwDataLen;
	LPBYTE pData;
} RAW_DATA, *PRAW_DATA;

typedef struct {
	LPWSTR wszGuid;
	LPWSTR wszDescr;
	ULONG ulMediaState;
	ULONG ulMediaType;
	ULONG ulPhysicalMediaType;
	INT nInfraMode;
	INT nAuthMode;
	INT nWepStatus;
#ifndef _WIN32_WCE
	u8 pad[2]; /* why is this needed? */
#endif /* _WIN32_WCE */
	DWORD dwCtlFlags;
	DWORD dwCapabilities; /* something added for WinXP SP2(?) */
	RAW_DATA rdSSID;
	RAW_DATA rdBSSID;
	RAW_DATA rdBSSIDList;
	RAW_DATA rdStSSIDList;
	RAW_DATA rdCtrlData;
#ifdef UNDER_CE
	BOOL bInitialized;
#endif
	DWORD nWPAMCastCipher;
	/* add some extra buffer for later additions since this interface is
	 * far from stable */
	u8 later_additions[100];
} INTF_ENTRY, *PINTF_ENTRY;

#define INTF_ALL 0xffffffff
#define INTF_ALL_FLAGS 0x0000ffff
#define INTF_CTLFLAGS 0x00000010
#define INTFCTL_ENABLED 0x8000
#endif /* _WIN32_WCE */


#ifdef _WIN32_WCE
static int wpa_driver_ndis_rebind_adapter(struct wpa_driver_ndis_data *drv)
{
	HANDLE ndis;
	TCHAR multi[100];
	int len;

	len = _tcslen(drv->adapter_name);
	if (len > 80)
		return -1;

	ndis = CreateFile(DD_NDIS_DEVICE_NAME, GENERIC_READ | GENERIC_WRITE,
			  0, NULL, OPEN_EXISTING, 0, NULL);
	if (ndis == INVALID_HANDLE_VALUE) {
		wpa_printf(MSG_DEBUG, "NDIS: Failed to open file to NDIS "
			   "device: %d", (int) GetLastError());
		return -1;
	}

	len++;
	memcpy(multi, drv->adapter_name, len * sizeof(TCHAR));
	memcpy(&multi[len], TEXT("NDISUIO\0"), 9 * sizeof(TCHAR));
	len += 9;

	if (!DeviceIoControl(ndis, IOCTL_NDIS_REBIND_ADAPTER,
			     multi, len * sizeof(TCHAR), NULL, 0, NULL, NULL))
	{
		wpa_printf(MSG_DEBUG, "NDIS: IOCTL_NDIS_REBIND_ADAPTER "
			   "failed: 0x%x", (int) GetLastError());
		wpa_hexdump_ascii(MSG_DEBUG, "NDIS: rebind multi_sz",
				  (u8 *) multi, len * sizeof(TCHAR));
		CloseHandle(ndis);
		return -1;
	}

	CloseHandle(ndis);

	wpa_printf(MSG_DEBUG, "NDIS: Requested NDIS rebind of NDISUIO "
		   "protocol");

	return 0;
}
#endif /* _WIN32_WCE */


static int wpa_driver_ndis_set_wzc(struct wpa_driver_ndis_data *drv,
				   int enable)
{
#ifdef _WIN32_WCE
	HKEY hk, hk2;
	LONG ret;
	DWORD i, hnd, len;
	TCHAR keyname[256], devname[256];

#define WZC_DRIVER TEXT("Drivers\\BuiltIn\\ZeroConfig")

	if (enable) {
		HANDLE h;
		h = ActivateDeviceEx(WZC_DRIVER, NULL, 0, NULL);
		if (h == INVALID_HANDLE_VALUE || h == 0) {
			wpa_printf(MSG_DEBUG, "NDIS: Failed to re-enable WZC "
				   "- ActivateDeviceEx failed: %d",
				   (int) GetLastError());
			return -1;
		}

		wpa_printf(MSG_DEBUG, "NDIS: WZC re-enabled");
		return wpa_driver_ndis_rebind_adapter(drv);
	}

	/*
	 * Unfortunately, just disabling the WZC for an interface is not enough
	 * to free NDISUIO for us, so need to disable and unload WZC completely
	 * for now when using WinCE with NDISUIO. In addition, must request
	 * NDISUIO protocol to be rebound to the adapter in order to free the
	 * NDISUIO binding that WZC hold before us.
	 */

	/* Enumerate HKLM\Drivers\Active\* to find a handle to WZC. */
	ret = RegOpenKeyEx(HKEY_LOCAL_MACHINE, DEVLOAD_ACTIVE_KEY, 0, 0, &hk);
	if (ret != ERROR_SUCCESS) {
		wpa_printf(MSG_DEBUG, "NDIS: RegOpenKeyEx(DEVLOAD_ACTIVE_KEY) "
			   "failed: %d %d", (int) ret, (int) GetLastError());
		return -1;
	}

	for (i = 0; ; i++) {
		len = sizeof(keyname);
		ret = RegEnumKeyEx(hk, i, keyname, &len, NULL, NULL, NULL,
				   NULL);
		if (ret != ERROR_SUCCESS) {
			wpa_printf(MSG_DEBUG, "NDIS: Could not find active "
				   "WZC - assuming it is not running.");
			RegCloseKey(hk);
			return -1;
		}

		ret = RegOpenKeyEx(hk, keyname, 0, 0, &hk2);
		if (ret != ERROR_SUCCESS) {
			wpa_printf(MSG_DEBUG, "NDIS: RegOpenKeyEx(active dev) "
				   "failed: %d %d",
				   (int) ret, (int) GetLastError());
			continue;
		}

		len = sizeof(devname);
		ret = RegQueryValueEx(hk2, DEVLOAD_DEVKEY_VALNAME, NULL, NULL,
				      (LPBYTE) devname, &len);
		if (ret != ERROR_SUCCESS) {
			wpa_printf(MSG_DEBUG, "NDIS: RegQueryValueEx("
				   "DEVKEY_VALNAME) failed: %d %d",
				   (int) ret, (int) GetLastError());
			RegCloseKey(hk2);
			continue;
		}

		if (_tcscmp(devname, WZC_DRIVER) == 0)
			break;

		RegCloseKey(hk2);
	}

	RegCloseKey(hk);

	/* Found WZC - get handle to it. */
	len = sizeof(hnd);
	ret = RegQueryValueEx(hk2, DEVLOAD_HANDLE_VALNAME, NULL, NULL,
			      (PUCHAR) &hnd, &len);
	if (ret != ERROR_SUCCESS) {
		wpa_printf(MSG_DEBUG, "NDIS: RegQueryValueEx(HANDLE_VALNAME) "
			   "failed: %d %d", (int) ret, (int) GetLastError());
		RegCloseKey(hk2);
		return -1;
	}

	RegCloseKey(hk2);

	/* Deactivate WZC */
	if (!DeactivateDevice((HANDLE) hnd)) {
		wpa_printf(MSG_DEBUG, "NDIS: DeactivateDevice failed: %d",
			   (int) GetLastError());
		return -1;
	}

	wpa_printf(MSG_DEBUG, "NDIS: Disabled WZC temporarily");
	drv->wzc_disabled = 1;
	return wpa_driver_ndis_rebind_adapter(drv);

#else /* _WIN32_WCE */

	HMODULE hm;
	DWORD (WINAPI *wzc_enum_interf)(LPWSTR pSrvAddr,
					PINTFS_KEY_TABLE pIntfs);
	DWORD (WINAPI *wzc_query_interf)(LPWSTR pSrvAddr, DWORD dwInFlags,
					 PINTF_ENTRY pIntf,
					 LPDWORD pdwOutFlags);
	DWORD (WINAPI *wzc_set_interf)(LPWSTR pSrvAddr, DWORD dwInFlags,
				       PINTF_ENTRY pIntf, LPDWORD pdwOutFlags);
	int ret = -1, j;
	DWORD res;
	INTFS_KEY_TABLE guids;
	INTF_ENTRY intf;
	char guid[128];
	WCHAR *pos;
	DWORD flags, i;

	hm = LoadLibrary(TEXT("wzcsapi.dll"));
	if (hm == NULL) {
		wpa_printf(MSG_DEBUG, "NDIS: Failed to load wzcsapi.dll (%u) "
			   "- WZC probably not running",
			   (unsigned int) GetLastError());
		return -1;
	}

#ifdef _WIN32_WCE
	wzc_enum_interf = (void *) GetProcAddressA(hm, "WZCEnumInterfaces");
	wzc_query_interf = (void *) GetProcAddressA(hm, "WZCQueryInterface");
	wzc_set_interf = (void *) GetProcAddressA(hm, "WZCSetInterface");