183 lines
7.2 KiB
C
183 lines
7.2 KiB
C
// SoftEther VPN Source Code - Stable Edition Repository
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// Cedar Communication Module
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//
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// SoftEther VPN Server, Client and Bridge are free software under GPLv2.
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//
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// Copyright (c) Daiyuu Nobori.
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// Copyright (c) SoftEther VPN Project, University of Tsukuba, Japan.
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// Copyright (c) SoftEther Corporation.
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//
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// All Rights Reserved.
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//
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// http://www.softether.org/
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//
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// Author: Daiyuu Nobori, Ph.D.
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// Comments: Tetsuo Sugiyama, Ph.D.
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License
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// version 2 as published by the Free Software Foundation.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License version 2
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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// CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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// TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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// SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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// THE LICENSE AGREEMENT IS ATTACHED ON THE SOURCE-CODE PACKAGE
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// AS "LICENSE.TXT" FILE. READ THE TEXT FILE IN ADVANCE TO USE THE SOFTWARE.
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//
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//
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// THIS SOFTWARE IS DEVELOPED IN JAPAN, AND DISTRIBUTED FROM JAPAN,
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// UNDER JAPANESE LAWS. YOU MUST AGREE IN ADVANCE TO USE, COPY, MODIFY,
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// MERGE, PUBLISH, DISTRIBUTE, SUBLICENSE, AND/OR SELL COPIES OF THIS
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// SOFTWARE, THAT ANY JURIDICAL DISPUTES WHICH ARE CONCERNED TO THIS
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// SOFTWARE OR ITS CONTENTS, AGAINST US (SOFTETHER PROJECT, SOFTETHER
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// CORPORATION, DAIYUU NOBORI OR OTHER SUPPLIERS), OR ANY JURIDICAL
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// DISPUTES AGAINST US WHICH ARE CAUSED BY ANY KIND OF USING, COPYING,
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// MODIFYING, MERGING, PUBLISHING, DISTRIBUTING, SUBLICENSING, AND/OR
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// SELLING COPIES OF THIS SOFTWARE SHALL BE REGARDED AS BE CONSTRUED AND
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// CONTROLLED BY JAPANESE LAWS, AND YOU MUST FURTHER CONSENT TO
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// EXCLUSIVE JURISDICTION AND VENUE IN THE COURTS SITTING IN TOKYO,
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// JAPAN. YOU MUST WAIVE ALL DEFENSES OF LACK OF PERSONAL JURISDICTION
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// AND FORUM NON CONVENIENS. PROCESS MAY BE SERVED ON EITHER PARTY IN
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// THE MANNER AUTHORIZED BY APPLICABLE LAW OR COURT RULE.
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//
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// USE ONLY IN JAPAN. DO NOT USE THIS SOFTWARE IN ANOTHER COUNTRY UNLESS
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// YOU HAVE A CONFIRMATION THAT THIS SOFTWARE DOES NOT VIOLATE ANY
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// CRIMINAL LAWS OR CIVIL RIGHTS IN THAT PARTICULAR COUNTRY. USING THIS
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// SOFTWARE IN OTHER COUNTRIES IS COMPLETELY AT YOUR OWN RISK. THE
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// SOFTETHER VPN PROJECT HAS DEVELOPED AND DISTRIBUTED THIS SOFTWARE TO
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// COMPLY ONLY WITH THE JAPANESE LAWS AND EXISTING CIVIL RIGHTS INCLUDING
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// PATENTS WHICH ARE SUBJECTS APPLY IN JAPAN. OTHER COUNTRIES' LAWS OR
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// CIVIL RIGHTS ARE NONE OF OUR CONCERNS NOR RESPONSIBILITIES. WE HAVE
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// NEVER INVESTIGATED ANY CRIMINAL REGULATIONS, CIVIL LAWS OR
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// INTELLECTUAL PROPERTY RIGHTS INCLUDING PATENTS IN ANY OF OTHER 200+
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// COUNTRIES AND TERRITORIES. BY NATURE, THERE ARE 200+ REGIONS IN THE
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// WORLD, WITH DIFFERENT LAWS. IT IS IMPOSSIBLE TO VERIFY EVERY
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// COUNTRIES' LAWS, REGULATIONS AND CIVIL RIGHTS TO MAKE THE SOFTWARE
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// COMPLY WITH ALL COUNTRIES' LAWS BY THE PROJECT. EVEN IF YOU WILL BE
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// SUED BY A PRIVATE ENTITY OR BE DAMAGED BY A PUBLIC SERVANT IN YOUR
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// COUNTRY, THE DEVELOPERS OF THIS SOFTWARE WILL NEVER BE LIABLE TO
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// RECOVER OR COMPENSATE SUCH DAMAGES, CRIMINAL OR CIVIL
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// RESPONSIBILITIES. NOTE THAT THIS LINE IS NOT LICENSE RESTRICTION BUT
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// JUST A STATEMENT FOR WARNING AND DISCLAIMER.
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//
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//
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// SOURCE CODE CONTRIBUTION
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// ------------------------
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//
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// Your contribution to SoftEther VPN Project is much appreciated.
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// Please send patches to us through GitHub.
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// Read the SoftEther VPN Patch Acceptance Policy in advance:
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// http://www.softether.org/5-download/src/9.patch
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//
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//
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// DEAR SECURITY EXPERTS
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// ---------------------
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//
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// If you find a bug or a security vulnerability please kindly inform us
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// about the problem immediately so that we can fix the security problem
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// to protect a lot of users around the world as soon as possible.
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//
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// Our e-mail address for security reports is:
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// softether-vpn-security [at] softether.org
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//
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// Please note that the above e-mail address is not a technical support
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// inquiry address. If you need technical assistance, please visit
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// http://www.softether.org/ and ask your question on the users forum.
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//
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// Thank you for your cooperation.
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//
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//
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// NO MEMORY OR RESOURCE LEAKS
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// ---------------------------
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//
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// The memory-leaks and resource-leaks verification under the stress
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// test has been passed before release this source code.
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// Bridge.h
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// Header of Bridge.c
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#ifndef BRIDGE_H
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#define BRIDGE_H
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#ifdef OS_WIN32
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// For Win32
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#include <Cedar/BridgeWin32.h>
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#else
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// For Unix
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#include <Cedar/BridgeUnix.h>
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#endif // OS_WIN32
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// Constants
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#define BRIDGE_SPECIAL_IPRAW_NAME "ipv4_rawsocket_virtual_router"
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// Bridge
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struct BRIDGE
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{
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bool Active; // Status
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CEDAR *Cedar; // Cedar
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HUB *Hub; // HUB
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SESSION *Session; // Session
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POLICY *Policy; // Policy
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ETH *Eth; // Ethernet
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char Name[MAX_SIZE]; // Device name
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UINT64 LastBridgeTry; // Time to try to bridge at last
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bool Local; // Local mode
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bool Monitor; // Monitor mode
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bool TapMode; // Tap mode
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bool LimitBroadcast; // Broadcasts limiting mode
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UCHAR TapMacAddress[6]; // MAC address of the tap
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UINT LastNumDevice; // Number of device (Number of last checked)
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UINT64 LastNumDeviceCheck; // Time at which to check the number of devices at last
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UINT64 LastChangeMtuError; // Time that recorded the error to change the MTU at last
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LOCALBRIDGE *ParentLocalBridge; // Parent Local Bridge
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};
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// Local bridge
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struct LOCALBRIDGE
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{
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char HubName[MAX_HUBNAME_LEN + 1]; // Virtual HUB name
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char DeviceName[MAX_SIZE]; // Device name
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bool Local; // Local mode
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bool Monitor; // Monitor mode
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bool TapMode; // Tap mode
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bool LimitBroadcast; // Broadcast packets limiting mode
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UCHAR TapMacAddress[6]; // MAC address of the tap
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BRIDGE *Bridge; // Bridge
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};
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BRIDGE *BrNewBridge(HUB *h, char *name, POLICY *p, bool local, bool monitor, bool tapmode, char *tapaddr, bool limit_broadcast, LOCALBRIDGE *parent_local_bridge);
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void BrBridgeThread(THREAD *thread, void *param);
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void BrFreeBridge(BRIDGE *b);
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void InitLocalBridgeList(CEDAR *c);
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void FreeLocalBridgeList(CEDAR *c);
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void AddLocalBridge(CEDAR *c, char *hubname, char *devicename, bool local, bool monitor, bool tapmode, char *tapaddr, bool limit_broadcast);
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bool DeleteLocalBridge(CEDAR *c, char *hubname, char *devicename);
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bool IsBridgeSupported();
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bool IsNeedWinPcap();
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UINT GetEthDeviceHash();
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bool IsRawIpBridgeSupported();
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#endif // BRIDGE_H
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