mirror of
https://github.com/SoftEtherVPN/SoftEtherVPN.git
synced 2024-11-07 10:10:41 +03:00
210 lines
8.3 KiB
C
210 lines
8.3 KiB
C
// SoftEther VPN Source Code
|
|
// Cedar Communication Module
|
|
//
|
|
// 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.
|
|
|
|
|
|
// IPsec.h
|
|
// Header of IPsec.c
|
|
|
|
#ifndef IPSEC_H
|
|
#define IPSEC_H
|
|
|
|
//// Constants
|
|
|
|
// UDP port number
|
|
#define IPSEC_PORT_L2TP 1701 // L2TP
|
|
#define IPSEC_PORT_IPSEC_ISAKMP 500 // ISAKMP
|
|
#define IPSEC_PORT_IPSEC_ESP_UDP 4500 // IPsec ESP over UDP
|
|
#define IPSEC_PORT_IPSEC_ESP_RAW MAKE_SPECIAL_PORT(50) // Raw mode ESP Protocol No: 50
|
|
#define IPSEC_PORT_IPSEC_ESP_RAW_WPF MAKE_SPECIAL_PORT(52) // Raw mode ESP Protocol No: 52 (WPF)
|
|
#define IPSEC_PORT_L2TPV3_VIRTUAL 1000001 // L2TPv3 virtual port
|
|
|
|
// IP protocol number
|
|
#define IPSEC_IP_PROTO_ETHERIP IP_PROTO_ETHERIP // EtherIP
|
|
#define IPSEC_IP_PROTO_L2TPV3 IP_PROTO_L2TPV3 // L2TPv3
|
|
|
|
// WFP tag
|
|
#define WFP_ESP_PACKET_TAG_1 0x19841117
|
|
#define WFP_ESP_PACKET_TAG_2 0x1accafe1
|
|
|
|
// Monitoring interval of OS service
|
|
#define IPSEC_CHECK_OS_SERVICE_INTERVAL_INITIAL 1024
|
|
#define IPSEC_CHECK_OS_SERVICE_INTERVAL_MAX (5 * 60 * 1000)
|
|
|
|
// Default IPsec pre-shared key
|
|
#define IPSEC_DEFAULT_SECRET "vpn"
|
|
|
|
|
|
//// Type
|
|
|
|
// List of services provided by IPsec server
|
|
struct IPSEC_SERVICES
|
|
{
|
|
bool L2TP_Raw; // Raw L2TP
|
|
bool L2TP_IPsec; // L2TP over IPsec
|
|
bool EtherIP_IPsec; // EtherIP over IPsec
|
|
|
|
char IPsec_Secret[MAX_SIZE]; // IPsec pre-shared key
|
|
char L2TP_DefaultHub[MAX_SIZE]; // Default Virtual HUB name for L2TP connection
|
|
};
|
|
|
|
// EtherIP key list entry
|
|
struct ETHERIP_ID
|
|
{
|
|
char Id[MAX_SIZE]; // ID
|
|
char HubName[MAX_HUBNAME_LEN + 1]; // Virtual HUB name
|
|
char UserName[MAX_USERNAME_LEN + 1]; // User name
|
|
char Password[MAX_USERNAME_LEN + 1]; // Password
|
|
};
|
|
|
|
// IPsec server
|
|
struct IPSEC_SERVER
|
|
{
|
|
CEDAR *Cedar;
|
|
UDPLISTENER *UdpListener;
|
|
bool Halt;
|
|
bool NoMoreChangeSettings;
|
|
LOCK *LockSettings;
|
|
IPSEC_SERVICES Services;
|
|
L2TP_SERVER *L2TP; // L2TP server
|
|
IKE_SERVER *Ike; // IKE server
|
|
LIST *EtherIPIdList; // EtherIP setting list
|
|
UINT EtherIPIdListSettingVerNo; // EtherIP setting list version number
|
|
THREAD *OsServiceCheckThread; // OS Service monitoring thread
|
|
EVENT *OsServiceCheckThreadEvent; // Event for OS Service monitoring thread
|
|
IPSEC_WIN7 *Win7; // Helper module for Windows Vista / 7
|
|
bool Check_LastEnabledStatus;
|
|
bool HostIPAddressListChanged;
|
|
bool OsServiceStoped;
|
|
};
|
|
|
|
|
|
//// Function prototype
|
|
IPSEC_SERVER *NewIPsecServer(CEDAR *cedar);
|
|
void FreeIPsecServer(IPSEC_SERVER *s);
|
|
void IPsecServerUdpPacketRecvProc(UDPLISTENER *u, LIST *packet_list);
|
|
void IPsecServerSetServices(IPSEC_SERVER *s, IPSEC_SERVICES *sl);
|
|
void IPsecNormalizeServiceSetting(IPSEC_SERVER *s);
|
|
void IPsecServerGetServices(IPSEC_SERVER *s, IPSEC_SERVICES *sl);
|
|
void IPsecProcPacket(IPSEC_SERVER *s, UDPPACKET *p);
|
|
int CmpEtherIPId(void *p1, void *p2);
|
|
bool SearchEtherIPId(IPSEC_SERVER *s, ETHERIP_ID *id, char *id_str);
|
|
void AddEtherIPId(IPSEC_SERVER *s, ETHERIP_ID *id);
|
|
bool DeleteEtherIPId(IPSEC_SERVER *s, char *id_str);
|
|
void IPsecOsServiceCheckThread(THREAD *t, void *p);
|
|
bool IPsecCheckOsService(IPSEC_SERVER *s);
|
|
void IPSecSetDisable(bool b);
|
|
|
|
|
|
#endif // IPSEC_H
|
|
|
|
|
|
// 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/
|