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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) 2012-2016 Daiyuu Nobori.
// Copyright (c) 2012-2016 SoftEther VPN Project, University of Tsukuba, Japan.
// Copyright (c) 2012-2016 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.
// SeLowCommon.h
// Common Header for Kernel Mode / User Mode
//// Version number
// Change this number every time functions are added or modified on the driver.
// As long as this number does not change, installation of SeLow during the update
// installation of the VPN Server / VPN Client / VPN Bridge is skipped.
#define SL_VER 48
// Constants
#define SL_MAX_PACKET_SIZE 1600
#define SL_MAX_PACKET_SIZE_ANNOUNCE 1514
#define SL_MIN_PACKET_SIZE 14
#define SL_PACKET_HEADER_SIZE 14
#define SL_MAX_FRAME_SIZE (SL_MAX_PACKET_SIZE - SL_MIN_PACKET_SIZE)
#define SL_PROTOCOL_NAME "SeLow"
#define SL_EVENT_NAME_SIZE 128
#define SL_ENUM_COMPLETE_GIVEUP_TICK (15 * 1000)
// IOCTL
#define SL_IOCTL_GET_EVENT_NAME CTL_CODE(0x8000, 1, METHOD_NEITHER, FILE_ANY_ACCESS)
// IOCTL data structure
typedef struct SL_IOCTL_EVENT_NAME
{
char EventNameWin32[SL_EVENT_NAME_SIZE]; // Event name
} SL_IOCTL_EVENT_NAME;
// Device ID
#define SL_BASIC_DEVICE_NAME "\\Device\\SELOW_BASIC_DEVICE"
#define SL_BASIC_DEVICE_NAME_SYMBOLIC "\\DosDevices\\Global\\SELOW_BASIC_DEVICE"
#define SL_BASIC_DEVICE_FILENAME_WIN32 "\\\\.\\SELOW_BASIC_DEVICE"
#define SL_ADAPTER_ID_PREFIX "SELOW_A_"
#define SL_ADAPTER_ID_PREFIX_W L"SELOW_A_"
#define SL_ADAPTER_DEVICE_NAME "\\Device\\SELOW_A_{00000000-0000-0000-0000-000000000000}"
#define SL_ADAPTER_DEVICE_NAME_SYMBOLIC "\\DosDevices\\Global\\SELOW_A_{00000000-0000-0000-0000-000000000000}"
#define SL_ADAPTER_DEVICE_FILENAME_WIN32 "\\\\.\\%s"
// Event name
#define SL_EVENT_NAME "\\BaseNamedObjects\\SELOW_EVENT_%u_%u"
#define SL_EVENT_NAME_WIN32 "Global\\SELOW_EVENT_%u_%u"
// Registry key
#define SL_REG_KEY_NAME "SYSTEM\\CurrentControlSet\\services\\SeLow"
#define SL_REG_VER_VALUE "SlVersion"
#define SL_REG_VER_VALUE_WIN10 "SlVersion_Win10"
// Adapter data
#define SL_ADAPTER_ID_LEN 64
typedef struct SL_ADAPTER_INFO
{
wchar_t AdapterId[SL_ADAPTER_ID_LEN]; // Adapter ID
UCHAR MacAddress[6]; // MAC address
UCHAR Padding1[2];
UINT MtuSize; // MTU size
char FriendlyName[256]; // Display name
UINT SupportsVLanHw; // Supports VLAN by HW
UCHAR Reserved[256 - sizeof(UINT)]; // Reserved area
} SL_ADAPTER_INFO;
#define SL_MAX_ADAPTER_INFO_LIST_ENTRY 256
#define SL_SIGNATURE 0xDEADBEEF
typedef struct SL_ADAPTER_INFO_LIST
{
UINT Signature; // Signature
UINT SeLowVersion; // Version of SeLow
UINT EnumCompleted; // Enumeration completion flag
UINT NumAdapters; // The total number of adapter
SL_ADAPTER_INFO Adapters[SL_MAX_ADAPTER_INFO_LIST_ENTRY]; // Array of adapter
} SL_ADAPTER_INFO_LIST;
// Packet data exchange related
#define SL_MAX_PACKET_EXCHANGE 256 // Number of packets that can be exchanged at a time
#define SL_MAX_PACKET_QUEUED 4096 // Maximum number of packets that can be queued
#define SL_EX_SIZEOF_NUM_PACKET 4 // Packet count data (UINT)
#define SL_EX_SIZEOF_LENGTH_PACKET 4 // Length data of the packet data (UINT)
#define SL_EX_SIZEOF_LEFT_FLAG 4 // Flag to indicate that the packet is left
#define SL_EX_SIZEOF_ONE_PACKET 1600 // Data area occupied by a packet data
#define SL_EXCHANGE_BUFFER_SIZE (SL_EX_SIZEOF_NUM_PACKET + SL_EX_SIZEOF_LEFT_FLAG + \
(SL_EX_SIZEOF_LENGTH_PACKET + SL_EX_SIZEOF_ONE_PACKET) * (SL_MAX_PACKET_EXCHANGE + 1))
#define SL_NUM_PACKET(buf) (*((UINT *)((UCHAR *)buf + 0)))
#define SL_SIZE_OF_PACKET(buf, i) (*((UINT *)((UCHAR *)buf + SL_EX_SIZEOF_NUM_PACKET + \
(i * (SL_EX_SIZEOF_LENGTH_PACKET + SL_EX_SIZEOF_ONE_PACKET)))))
#define SL_ADDR_OF_PACKET(buf, i) (((UINT *)((UCHAR *)buf + SL_EX_SIZEOF_NUM_PACKET + \
SL_EX_SIZEOF_LENGTH_PACKET + \
(i * (SL_EX_SIZEOF_LENGTH_PACKET + SL_EX_SIZEOF_ONE_PACKET)))))
#define SL_LEFT_FLAG(buf) SL_SIZE_OF_PACKET(buf, SL_MAX_PACKET_EXCHANGE)
// 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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