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|
// SoftEther VPN Source Code
// SeLow: SoftEther Lightweight Network Protocol
//
// SoftEther VPN Server, Client and Bridge are free software under GPLv2.
//
// Copyright (c) 2012-2014 Daiyuu Nobori.
// Copyright (c) 2012-2014 SoftEther VPN Project, University of Tsukuba, Japan.
// Copyright (c) 2012-2014 SoftEther Corporation.
//
// All Rights Reserved.
//
// http://www.softether.org/
//
// Author: Daiyuu Nobori
// Comments: Tetsuo Sugiyama, Ph.D.
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// version 2 as published by the Free Software Foundation.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License version 2
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
// CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
// TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
// SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
// THE LICENSE AGREEMENT IS ATTACHED ON THE SOURCE-CODE PACKAGE
// AS "LICENSE.TXT" FILE. READ THE TEXT FILE IN ADVANCE TO USE THE SOFTWARE.
//
//
// THIS SOFTWARE IS DEVELOPED IN JAPAN, AND DISTRIBUTED FROM JAPAN,
// UNDER JAPANESE LAWS. YOU MUST AGREE IN ADVANCE TO USE, COPY, MODIFY,
// MERGE, PUBLISH, DISTRIBUTE, SUBLICENSE, AND/OR SELL COPIES OF THIS
// SOFTWARE, THAT ANY JURIDICAL DISPUTES WHICH ARE CONCERNED TO THIS
// SOFTWARE OR ITS CONTENTS, AGAINST US (SOFTETHER PROJECT, SOFTETHER
// CORPORATION, DAIYUU NOBORI OR OTHER SUPPLIERS), OR ANY JURIDICAL
// DISPUTES AGAINST US WHICH ARE CAUSED BY ANY KIND OF USING, COPYING,
// MODIFYING, MERGING, PUBLISHING, DISTRIBUTING, SUBLICENSING, AND/OR
// SELLING COPIES OF THIS SOFTWARE SHALL BE REGARDED AS BE CONSTRUED AND
// CONTROLLED BY JAPANESE LAWS, AND YOU MUST FURTHER CONSENT TO
// EXCLUSIVE JURISDICTION AND VENUE IN THE COURTS SITTING IN TOKYO,
// JAPAN. YOU MUST WAIVE ALL DEFENSES OF LACK OF PERSONAL JURISDICTION
// AND FORUM NON CONVENIENS. PROCESS MAY BE SERVED ON EITHER PARTY IN
// THE MANNER AUTHORIZED BY APPLICABLE LAW OR COURT RULE.
//
// USE ONLY IN JAPAN. DO NOT USE THIS SOFTWARE IN ANOTHER COUNTRY UNLESS
// YOU HAVE A CONFIRMATION THAT THIS SOFTWARE DOES NOT VIOLATE ANY
// CRIMINAL LAWS OR CIVIL RIGHTS IN THAT PARTICULAR COUNTRY. USING THIS
// SOFTWARE IN OTHER COUNTRIES IS COMPLETELY AT YOUR OWN RISK. THE
// SOFTETHER VPN PROJECT HAS DEVELOPED AND DISTRIBUTED THIS SOFTWARE TO
// COMPLY ONLY WITH THE JAPANESE LAWS AND EXISTING CIVIL RIGHTS INCLUDING
// PATENTS WHICH ARE SUBJECTS APPLY IN JAPAN. OTHER COUNTRIES' LAWS OR
// CIVIL RIGHTS ARE NONE OF OUR CONCERNS NOR RESPONSIBILITIES. WE HAVE
// NEVER INVESTIGATED ANY CRIMINAL REGULATIONS, CIVIL LAWS OR
// INTELLECTUAL PROPERTY RIGHTS INCLUDING PATENTS IN ANY OF OTHER 200+
// COUNTRIES AND TERRITORIES. BY NATURE, THERE ARE 200+ REGIONS IN THE
// WORLD, WITH DIFFERENT LAWS. IT IS IMPOSSIBLE TO VERIFY EVERY
// COUNTRIES' LAWS, REGULATIONS AND CIVIL RIGHTS TO MAKE THE SOFTWARE
// COMPLY WITH ALL COUNTRIES' LAWS BY THE PROJECT. EVEN IF YOU WILL BE
// SUED BY A PRIVATE ENTITY OR BE DAMAGED BY A PUBLIC SERVANT IN YOUR
// COUNTRY, THE DEVELOPERS OF THIS SOFTWARE WILL NEVER BE LIABLE TO
// RECOVER OR COMPENSATE SUCH DAMAGES, CRIMINAL OR CIVIL
// RESPONSIBILITIES. NOTE THAT THIS LINE IS NOT LICENSE RESTRICTION BUT
// JUST A STATEMENT FOR WARNING AND DISCLAIMER.
//
//
// SOURCE CODE CONTRIBUTION
// ------------------------
//
// Your contribution to SoftEther VPN Project is much appreciated.
// Please send patches to us through GitHub.
// Read the SoftEther VPN Patch Acceptance Policy in advance:
// http://www.softether.org/5-download/src/9.patch
//
//
// DEAR SECURITY EXPERTS
// ---------------------
//
// If you find a bug or a security vulnerability please kindly inform us
// about the problem immediately so that we can fix the security problem
// to protect a lot of users around the world as soon as possible.
//
// Our e-mail address for security reports is:
// softether-vpn-security [at] softether.org
//
// Please note that the above e-mail address is not a technical support
// inquiry address. If you need technical assistance, please visit
// http://www.softether.org/ and ask your question on the users forum.
//
// Thank you for your cooperation.
//
//
// NO MEMORY OR RESOURCE LEAKS
// ---------------------------
//
// The memory-leaks and resource-leaks verification under the stress
// test has been passed before release this source code.
// SeLowUser.c
// SoftEther Lightweight Network Protocol User-mode Library
#include <GlobalConst.h>
#ifdef WIN32
#include <windows.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <wchar.h>
#include <stdarg.h>
#include <time.h>
#include <errno.h>
#include <Mayaqua/Mayaqua.h>
#include <Cedar/Cedar.h>
// Install the driver
bool SuInstallDriver(bool force)
{
bool ret;
void *wow;
wow = MsDisableWow64FileSystemRedirection();
ret = SuInstallDriverInner(force);
MsRestoreWow64FileSystemRedirection(wow);
return ret;
}
bool SuInstallDriverInner(bool force)
{
wchar_t sys_fullpath[MAX_PATH];
UINT current_sl_ver = 0;
bool ret = false;
wchar_t src_cat[MAX_PATH];
wchar_t src_inf[MAX_PATH];
wchar_t src_sys[MAX_PATH];
wchar_t dst_cat[MAX_PATH];
wchar_t dst_inf[MAX_PATH];
wchar_t dst_sys[MAX_PATH];
wchar_t tmp_dir[MAX_PATH];
char *cpu_type = MsIsX64() ? "x64" : "x86";
if (SuIsSupportedOs(true) == false)
{
// Unsupported OS
return false;
}
CombinePathW(tmp_dir, sizeof(tmp_dir), MsGetWindowsDirW(), L"Temp");
MakeDirExW(tmp_dir);
UniStrCat(tmp_dir, sizeof(tmp_dir), L"\\selowtmp");
MakeDirExW(tmp_dir);
// Confirm whether the driver is currently installed
CombinePathW(sys_fullpath, sizeof(sys_fullpath), MsGetSystem32DirW(), L"drivers\\SeLow_%S.sys");
UniFormat(sys_fullpath, sizeof(sys_fullpath), sys_fullpath, cpu_type);
if (IsFileExistsW(sys_fullpath))
{
char *path;
// Read the current version from the registry
current_sl_ver = MsRegReadIntEx2(REG_LOCAL_MACHINE, SL_REG_KEY_NAME, SL_REG_VER_VALUE, false, true);
path = MsRegReadStrEx2(REG_LOCAL_MACHINE, SL_REG_KEY_NAME, "ImagePath", false, true);
if (IsEmptyStr(path))
{
current_sl_ver = 0;
}
Free(path);
}
if (force == false && current_sl_ver >= SL_VER)
{
// Newer version has already been installed
Debug("Newer SeLow is Installed. %u >= %u\n", current_sl_ver, SL_VER);
return true;
}
// Copy necessary files to a temporary directory
UniFormat(src_sys, sizeof(src_sys), L"|SeLow_%S.sys", cpu_type);
UniFormat(src_cat, sizeof(src_cat), L"|inf\\selow_%S\\inf.cat", cpu_type);
UniFormat(src_inf, sizeof(src_inf), L"|inf\\selow_%S\\SeLow_%S.inf", cpu_type, cpu_type);
UniFormat(dst_sys, sizeof(dst_cat), L"%s\\SeLow_%S.sys", tmp_dir, cpu_type);
UniFormat(dst_cat, sizeof(dst_cat), L"%s\\inf_selow.cat", tmp_dir);
UniFormat(dst_inf, sizeof(dst_inf), L"%s\\SeLow_%S.inf", tmp_dir, cpu_type);
if (FileCopyW(src_sys, dst_sys) &&
FileCopyW(src_cat, dst_cat) &&
FileCopyW(src_inf, dst_inf))
{
NO_WARNING *nw;
nw = MsInitNoWarningEx(SL_USER_AUTO_PUSH_TIMER);
// Call the installer
if (InstallNdisProtocolDriver(dst_inf, L"SeLow", SL_USER_INSTALL_LOCK_TIMEOUT) == false)
{
Debug("InstallNdisProtocolDriver Error.\n");
}
else
{
Debug("InstallNdisProtocolDriver Ok.\n");
// Copy manually because there are cases where .sys file is not copied successfully for some reason
FileCopyW(src_sys, sys_fullpath);
ret = true;
// Write the version number into the registry
MsRegWriteIntEx2(REG_LOCAL_MACHINE, SL_REG_KEY_NAME, SL_REG_VER_VALUE, SL_VER, false, true);
// Set to automatic startup
MsRegWriteIntEx2(REG_LOCAL_MACHINE, SL_REG_KEY_NAME, "Start", SERVICE_SYSTEM_START, false, true);
}
MsFreeNoWarning(nw);
}
else
{
Debug("Fail Copying Files.\n");
}
if (ret)
{
// If the service is installed this time, start and wait until the enumeration is completed
SuFree(SuInitEx(180 * 1000));
}
return ret;
}
// Get whether the current OS is supported by SeLow
bool SuIsSupportedOs(bool on_install)
{
if (MsRegReadIntEx2(REG_LOCAL_MACHINE, SL_REG_KEY_NAME, "EnableSeLow", false, true) != 0)
{
// Force enable
return true;
}
if (MsRegReadIntEx2(REG_LOCAL_MACHINE, SL_REG_KEY_NAME, "DisableSeLow", false, true) != 0)
{
// Force disable
return false;
}
if (MsIsWindows10())
{
// Windows 10 or later are always supported.
return true;
}
if (on_install)
{
// If Microsoft Routing and Remote Access service is running,
// then return false.
if (MsIsServiceRunning("RemoteAccess"))
{
return false;
}
}
// If the Su driver is currently running,
// then return true.
if (MsIsServiceRunning(SL_PROTOCOL_NAME))
{
return true;
}
// Currently Windows 8.1 or later are supported
if (MsIsWindows81() == false)
{
return false;
}
if (on_install == false)
{
// If Microsoft Routing and Remote Access service is running,
// then return false.
if (MsIsServiceRunning("RemoteAccess"))
{
return false;
}
}
return true;
}
// Write the next packet to the driver
bool SuPutPacket(SU_ADAPTER *a, void *buf, UINT size)
{
// Validate arguments
if (a == NULL)
{
return false;
}
if (a->Halt)
{
return false;
}
if (size > MAX_PACKET_SIZE)
{
return false;
}
// First, examine whether the current buffer is full
if ((SL_NUM_PACKET(a->PutBuffer) >= SL_MAX_PACKET_EXCHANGE) ||
(buf == NULL && SL_NUM_PACKET(a->PutBuffer) != 0))
{
// Write all current packets to the driver
if (SuPutPacketsToDriver(a) == false)
{
return false;
}
SL_NUM_PACKET(a->PutBuffer) = 0;
}
// Add the next packet to the buffer
if (buf != NULL)
{
UINT i = SL_NUM_PACKET(a->PutBuffer);
SL_NUM_PACKET(a->PutBuffer)++;
SL_SIZE_OF_PACKET(a->PutBuffer, i) = size;
Copy(SL_ADDR_OF_PACKET(a->PutBuffer, i), buf, size);
Free(buf);
}
return true;
}
// Write all current packets to the driver
bool SuPutPacketsToDriver(SU_ADAPTER *a)
{
DWORD write_size;
// Validate arguments
if (a == NULL)
{
return false;
}
if (a->Halt)
{
return false;
}
if (WriteFile(a->hFile, a->PutBuffer, SL_EXCHANGE_BUFFER_SIZE, &write_size, NULL) == false)
{
a->Halt = true;
SuCloseAdapterHandleInner(a);
return false;
}
if (write_size != SL_EXCHANGE_BUFFER_SIZE)
{
a->Halt = true;
return false;
}
return true;
}
// Read the next packet from the driver
bool SuGetNextPacket(SU_ADAPTER *a, void **buf, UINT *size)
{
// Validate arguments
if (a == NULL || buf == NULL || size == NULL)
{
return false;
}
if (a->Halt)
{
return false;
}
while (true)
{
if (a->CurrentPacketCount < SL_NUM_PACKET(a->GetBuffer))
{
// There are still packets that have been already read
*size = SL_SIZE_OF_PACKET(a->GetBuffer, a->CurrentPacketCount);
*buf = Malloc(*size);
Copy(*buf, SL_ADDR_OF_PACKET(a->GetBuffer, a->CurrentPacketCount), *size);
// Increment the packet number
a->CurrentPacketCount++;
return true;
}
else
{
// Read the next packet from the driver
if (SuGetPacketsFromDriver(a) == false)
{
return false;
}
if (SL_NUM_PACKET(a->GetBuffer) == 0)
{
// Packet is not received yet
*buf = NULL;
*size = 0;
return true;
}
a->CurrentPacketCount = 0;
}
}
}
// Read the next packet from the driver
bool SuGetPacketsFromDriver(SU_ADAPTER *a)
{
DWORD read_size;
// Validate arguments
if (a == NULL)
{
return false;
}
if (a->Halt)
{
return false;
}
if (ReadFile(a->hFile, a->GetBuffer, SL_EXCHANGE_BUFFER_SIZE, &read_size, NULL) == false)
{
a->Halt = true;
SuCloseAdapterHandleInner(a);
return false;
}
if (read_size != SL_EXCHANGE_BUFFER_SIZE)
{
a->Halt = true;
return false;
}
return true;
}
// Close the adapter
void SuCloseAdapter(SU_ADAPTER *a)
{
// Validate arguments
if (a == NULL)
{
return;
}
if (a->hEvent != NULL)
{
CloseHandle(a->hEvent);
}
if (a->hFile != INVALID_HANDLE_VALUE)
{
CloseHandle(a->hFile);
a->hFile = INVALID_HANDLE_VALUE;
}
Free(a);
}
// Close the adapter handle
void SuCloseAdapterHandleInner(SU_ADAPTER *a)
{
return;//////////// ****************
// Validate arguments
if (a == NULL)
{
return;
}
if (a->hFile != INVALID_HANDLE_VALUE)
{
CloseHandle(a->hFile);
a->hFile = INVALID_HANDLE_VALUE;
}
}
// Open the adapter
SU_ADAPTER *SuOpenAdapter(SU *u, char *adapter_id)
{
char filename[MAX_PATH];
void *h;
SU_ADAPTER *a;
SL_IOCTL_EVENT_NAME t;
UINT read_size;
// Validate arguments
if (u == NULL || adapter_id == NULL)
{
return NULL;
}
Format(filename, sizeof(filename), SL_ADAPTER_DEVICE_FILENAME_WIN32, adapter_id);
h = CreateFileA(filename, GENERIC_READ | GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);
if (h == INVALID_HANDLE_VALUE)
{
Debug("Create File %s failed. %u\n", filename, GetLastError());
return NULL;
}
else
{
Debug("Create File %s ok.\n", filename);
}
a = ZeroMalloc(sizeof(SU_ADAPTER));
StrCpy(a->AdapterId, sizeof(a->AdapterId), adapter_id);
StrCpy(a->DeviceName, sizeof(a->DeviceName), filename);
a->hFile = h;
Zero(&t, sizeof(t));
// Get the event name
if (DeviceIoControl(h, SL_IOCTL_GET_EVENT_NAME, &t, sizeof(t), &t, sizeof(t), &read_size, NULL) == false)
{
// Acquisition failure
SuCloseAdapter(a);
return NULL;
}
Debug("Event Name: %s\n", t.EventNameWin32);
// Get the event
a->hEvent = OpenEvent(EVENT_ALL_ACCESS, FALSE, t.EventNameWin32);
if (a->hEvent == NULL)
{
// Acquisition failure
SuCloseAdapter(a);
return NULL;
}
return a;
}
// Enumerate adapters
TOKEN_LIST *SuEnumAdapters(SU *u)
{
UINT i;
UINT ret_size;
TOKEN_LIST *ret;
// Validate arguments
if (u == NULL)
{
return NullToken();
}
Zero(&u->AdapterInfoList, sizeof(u->AdapterInfoList));
if (ReadFile(u->hFile, &u->AdapterInfoList, sizeof(u->AdapterInfoList),
&ret_size, NULL) == false ||
u->AdapterInfoList.Signature != SL_SIGNATURE)
{
Debug("SuEnumAdapters: ReadFile error.\n");
return NullToken();
}
ret = ZeroMalloc(sizeof(TOKEN_LIST));
ret->NumTokens = u->AdapterInfoList.NumAdapters;
ret->Token = ZeroMalloc(sizeof(char *) * ret->NumTokens);
Debug("SuEnumAdapters: u->AdapterInfoList.NumAdapters = %u\n", u->AdapterInfoList.NumAdapters);
for (i = 0;i < ret->NumTokens;i++)
{
ret->Token[i] = CopyUniToStr(u->AdapterInfoList.Adapters[i].AdapterId);
UniPrint(L"%s %u %S\n",
u->AdapterInfoList.Adapters[i].AdapterId,
u->AdapterInfoList.Adapters[i].MtuSize,
u->AdapterInfoList.Adapters[i].FriendlyName);
}
return ret;
}
// Create an adapters list
LIST *SuGetAdapterList(SU *u)
{
LIST *ret;
UINT read_size;
UINT i;
// Validate arguments
if (u == NULL)
{
return NULL;
}
ret = NewList(SuCmpAdaterList);
// Enumerate adapters
Zero(&u->AdapterInfoList, sizeof(u->AdapterInfoList));
if (ReadFile(u->hFile, &u->AdapterInfoList, sizeof(u->AdapterInfoList),
&read_size, NULL) == false ||
u->AdapterInfoList.Signature != SL_SIGNATURE)
{
SuFreeAdapterList(ret);
return NULL;
}
for (i = 0;i < u->AdapterInfoList.NumAdapters;i++)
{
SL_ADAPTER_INFO *info = &u->AdapterInfoList.Adapters[i];
SU_ADAPTER_LIST *a = SuAdapterInfoToAdapterList(info);
if (a != NULL)
{
Add(ret, a);
}
}
// Sort
Sort(ret);
return ret;
}
// Comparison function of the adapter list
int SuCmpAdaterList(void *p1, void *p2)
{
int r;
SU_ADAPTER_LIST *a1, *a2;
if (p1 == NULL || p2 == NULL)
{
return 0;
}
a1 = *(SU_ADAPTER_LIST **)p1;
a2 = *(SU_ADAPTER_LIST **)p2;
if (a1 == NULL || a2 == NULL)
{
return 0;
}
r = StrCmpi(a1->SortKey, a2->SortKey);
if (r != 0)
{
return 0;
}
return StrCmpi(a1->Guid, a2->Guid);
}
// Release the adapter list
void SuFreeAdapterList(LIST *o)
{
UINT i;
// Validate arguments
if (o == NULL)
{
return;
}
for (i = 0;i < LIST_NUM(o);i++)
{
SU_ADAPTER_LIST *a = LIST_DATA(o, i);
Free(a);
}
ReleaseList(o);
}
// Create an adapter list item
SU_ADAPTER_LIST *SuAdapterInfoToAdapterList(SL_ADAPTER_INFO *info)
{
SU_ADAPTER_LIST t;
char tmp[MAX_SIZE];
// Validate arguments
if (info == NULL)
{
return NULL;
}
Zero(&t, sizeof(t));
Copy(&t.Info, info, sizeof(SL_ADAPTER_INFO));
UniToStr(tmp, sizeof(tmp), info->AdapterId);
if (IsEmptyStr(tmp) || IsEmptyStr(info->FriendlyName) || StartWith(tmp, SL_ADAPTER_ID_PREFIX) == false)
{
// Name is invalid
return NULL;
}
// GUID (Part after "SELOW_A_" prefix)
StrCpy(t.Guid, sizeof(t.Guid), tmp + StrLen(SL_ADAPTER_ID_PREFIX));
// Name
StrCpy(t.Name, sizeof(t.Name), tmp);
// Key for sort
if (GetClassRegKeyWin32(t.SortKey, sizeof(t.SortKey), tmp, sizeof(tmp), t.Guid) == false)
{
// Can not be found
return NULL;
}
return Clone(&t, sizeof(t));
}
// Initialize the driver
SU *SuInit()
{
return SuInitEx(0);
}
SU *SuInitEx(UINT wait_for_bind_complete_tick)
{
void *h;
SU *u;
UINT read_size;
bool flag = false;
UINT64 giveup_tick = 0;
if (SuIsSupportedOs(false) == false)
{
// Unsupported OS
return NULL;
}
LABEL_RETRY:
// Open the device driver
h = CreateFileA(SL_BASIC_DEVICE_FILENAME_WIN32, GENERIC_READ | GENERIC_WRITE,
FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, 0, NULL);
if (h == INVALID_HANDLE_VALUE)
{
Debug("CreateFileA(%s) Failed.\n", SL_BASIC_DEVICE_FILENAME_WIN32);
// Start the service if it fails to start the device driver
if (flag == false)
{
if (MsStartService(SL_PROTOCOL_NAME) == false)
{
Debug("MsStartService(%s) Failed.\n", SL_PROTOCOL_NAME);
}
else
{
Debug("MsStartService(%s) Ok.\n", SL_PROTOCOL_NAME);
flag = true;
goto LABEL_RETRY;
}
}
return NULL;
}
//Debug("CreateFileA(%s) Ok.\n", SL_BASIC_DEVICE_FILENAME_WIN32);
u = ZeroMalloc(sizeof(SU));
giveup_tick = Tick64() + (UINT64)wait_for_bind_complete_tick;
if (wait_for_bind_complete_tick == 0)
{
if (ReadFile(h, &u->AdapterInfoList, sizeof(u->AdapterInfoList), &read_size, NULL) == false ||
u->AdapterInfoList.Signature != SL_SIGNATURE)
{
// Signature reception failure
Debug("Bad Signature.\n");
Free(u);
CloseHandle(h);
return NULL;
}
}
else
{
while (giveup_tick >= Tick64())
{
// Wait until the enumeration is completed
if (ReadFile(h, &u->AdapterInfoList, sizeof(u->AdapterInfoList), &read_size, NULL) == false ||
u->AdapterInfoList.Signature != SL_SIGNATURE)
{
// Signature reception failure
Debug("Bad Signature.\n");
Free(u);
CloseHandle(h);
return NULL;
}
if (u->AdapterInfoList.EnumCompleted)
{
// Complete enumeration
Debug("Bind Completed! %u\n", u->AdapterInfoList.EnumCompleted);
break;
}
// Incomplete enumeration
Debug("Waiting for Bind Complete.\n");
SleepThread(25);
}
}
u->hFile = h;
return u;
}
// Release the driver
void SuFree(SU *u)
{
// Validate arguments
if (u == NULL)
{
return;
}
CloseHandle(u->hFile);
Free(u);
}
#endif // WIN32
// Developed by SoftEther VPN Project at University of Tsukuba in Japan.
// Department of Computer Science has dozens of overly-enthusiastic geeks.
// Join us: http://www.tsukuba.ac.jp/english/admission/
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