241 lines
9.0 KiB
C
241 lines
9.0 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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// BridgeUnix.h
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// Header of BridgeUnix.c
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#ifndef BRIDGEUNIX_H
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#define BRIDGEUNIX_H
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// Macro
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#ifndef SOL_PACKET
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#define SOL_PACKET 263
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#endif
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#ifndef ifr_newname
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#define ifr_newname ifr_ifru.ifru_slave
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#endif
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// Constants
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#define UNIX_ETH_TMP_BUFFER_SIZE (2000)
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#define SOLARIS_MAXDLBUF (32768)
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#define BRIDGE_MAX_QUEUE_SIZE (4096*1500)
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// ETH structure
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struct ETH
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{
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char *Name; // Adapter name
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char *Title; // Adapter title
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CANCEL *Cancel; // Cancel object
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int IfIndex; // Index
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int Socket; // Socket
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UINT InitialMtu; // Initial MTU value
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UINT CurrentMtu; // Current MTU value
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int SocketBsdIf; // BSD interface operation socket
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UCHAR MacAddress[6]; // MAC address
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#ifdef BRIDGE_PCAP
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void *Pcap; // Pcap descriptor
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QUEUE *Queue; // Queue of the relay thread
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UINT QueueSize; // Number of bytes in Queue
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THREAD *CaptureThread; // Pcap relay thread
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#endif // BRIDGE_PCAP
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#ifdef BRIDGE_BPF
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UINT BufSize; // Buffer size to read the BPF (error for other)
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#ifdef BRIDGE_BPF_THREAD
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QUEUE *Queue; // Queue of the relay thread
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UINT QueueSize; // Number of bytes in Queue
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THREAD *CaptureThread; // BPF relay thread
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#else // BRIDGE_BPF_THREAD
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UCHAR *Buffer; // Buffer to read the BPF
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UCHAR *Next;
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int Rest;
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#endif // BRIDGE_BPF_THREAD
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#endif // BRIDGE_BPF
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VLAN *Tap; // tap
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bool Linux_IsAuxDataSupported; // Is PACKET_AUXDATA supported
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bool IsRawIpMode; // RAW IP mode
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SOCK *RawTcp, *RawUdp, *RawIcmp; // RAW sockets
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bool RawIp_HasError;
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UCHAR RawIpMyMacAddr[6];
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UCHAR RawIpYourMacAddr[6];
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IP MyIP;
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IP YourIP;
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QUEUE *RawIpSendQueue;
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IP MyPhysicalIP;
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IP MyPhysicalIPForce;
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UCHAR *RawIP_TmpBuffer;
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UINT RawIP_TmpBufferSize;
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};
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#if defined( BRIDGE_BPF ) || defined( BRIDGE_PCAP )
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struct CAPTUREBLOCK{
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UINT Size;
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UCHAR *Buf;
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};
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#endif // BRIDGE_BPF
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// Function prototype
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void InitEth();
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void FreeEth();
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bool IsEthSupported();
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bool IsEthSupportedLinux();
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bool IsEthSupportedSolaris();
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bool IsEthSupportedPcap();
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TOKEN_LIST *GetEthList();
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TOKEN_LIST *GetEthListEx(UINT *total_num_including_hidden, bool enum_normal, bool enum_rawip);
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TOKEN_LIST *GetEthListLinux(bool enum_normal, bool enum_rawip);
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TOKEN_LIST *GetEthListSolaris();
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TOKEN_LIST *GetEthListPcap();
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ETH *OpenEth(char *name, bool local, bool tapmode, char *tapaddr);
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ETH *OpenEthLinux(char *name, bool local, bool tapmode, char *tapaddr);
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ETH *OpenEthSolaris(char *name, bool local, bool tapmode, char *tapaddr);
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ETH *OpenEthPcap(char *name, bool local, bool tapmode, char *tapaddr);
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bool ParseUnixEthDeviceName(char *dst_devname, UINT dst_devname_size, UINT *dst_devid, char *src_name);
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void CloseEth(ETH *e);
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CANCEL *EthGetCancel(ETH *e);
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UINT EthGetPacket(ETH *e, void **data);
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UINT EthGetPacketLinux(ETH *e, void **data);
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UINT EthGetPacketSolaris(ETH *e, void **data);
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UINT EthGetPacketPcap(ETH *e, void **data);
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UINT EthGetPacketBpf(ETH *e, void **data);
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void EthPutPacket(ETH *e, void *data, UINT size);
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void EthPutPackets(ETH *e, UINT num, void **datas, UINT *sizes);
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UINT EthGetMtu(ETH *e);
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bool EthSetMtu(ETH *e, UINT mtu);
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bool EthIsChangeMtuSupported(ETH *e);
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bool EthGetInterfaceDescriptionUnix(char *name, char *str, UINT size);
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bool EthIsInterfaceDescriptionSupportedUnix();
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ETH *OpenEthLinuxIpRaw();
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void CloseEthLinuxIpRaw(ETH *e);
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UINT EthGetPacketLinuxIpRaw(ETH *e, void **data);
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UINT EthGetPacketLinuxIpRawForSock(ETH *e, void **data, SOCK *s, UINT proto);
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void EthPutPacketLinuxIpRaw(ETH *e, void *data, UINT size);
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bool EthProcessIpPacketInnerIpRaw(ETH *e, PKT *p);
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void EthSendIpPacketInnerIpRaw(ETH *e, void *data, UINT size, USHORT protocol);
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#ifdef UNIX_SOLARIS
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// Function prototype for Solaris
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bool DlipAttatchRequest(int fd, UINT devid);
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bool DlipReceiveAck(int fd);
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bool DlipPromiscuous(int fd, UINT level);
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bool DlipBindRequest(int fd);
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#endif // OS_SOLARIS
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int UnixEthOpenRawSocket();
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#endif // BRIDGEUNIX_H
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