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v4.03-9408-rtm
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dnobori
291
src/Cedar/Nat.h
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291
src/Cedar/Nat.h
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// SoftEther VPN Source Code
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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) 2012-2014 Daiyuu Nobori.
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// Copyright (c) 2012-2014 SoftEther VPN Project, University of Tsukuba, Japan.
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// Copyright (c) 2012-2014 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
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// Comments: Tetsuo Sugiyama, Ph.D.
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//
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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 IT IN OTHER COUNTRIES. IMPORTING THIS
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// SOFTWARE INTO OTHER COUNTRIES IS AT YOUR OWN RISK. SOME COUNTRIES
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// PROHIBIT ENCRYPTED COMMUNICATIONS. USING THIS SOFTWARE IN OTHER
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// COUNTRIES MIGHT BE RESTRICTED.
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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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// Nat.h
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// Header of Nat.c
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#ifndef NAT_H
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#define NAT_H
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// Constants
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#define NAT_CONFIG_FILE_NAME "@vpn_router.config" // NAT configuration file
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#define DEFAULT_NAT_ADMIN_PORT 2828 // Default port number for management
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#define NAT_ADMIN_PORT_LISTEN_INTERVAL 1000 // Interval for trying to open a port for management
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#define NAT_FILE_SAVE_INTERVAL (30 * 1000) // Interval to save
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// NAT object
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struct NAT
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{
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LOCK *lock; // Lock
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UCHAR HashedPassword[SHA1_SIZE]; // Administrative password
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VH_OPTION Option; // Option
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CEDAR *Cedar; // Cedar
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UINT AdminPort; // Management port number
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bool Online; // Online flag
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VH *Virtual; // Virtual host object
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CLIENT_OPTION *ClientOption; // Client Option
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CLIENT_AUTH *ClientAuth; // Client authentication data
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CFG_RW *CfgRw; // Config file R/W
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THREAD *AdminAcceptThread; // Management connection reception thread
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SOCK *AdminListenSock; // Management port socket
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EVENT *HaltEvent; // Halting event
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volatile bool Halt; // Halting flag
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LIST *AdminList; // Management thread list
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X *AdminX; // Server certificate for management
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K *AdminK; // Server private key for management
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SNAT *SecureNAT; // SecureNAT object
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};
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// NAT management connection
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struct NAT_ADMIN
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{
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NAT *Nat; // NAT
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SOCK *Sock; // Socket
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THREAD *Thread; // Thread
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};
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// RPC_DUMMY
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struct RPC_DUMMY
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{
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UINT DummyValue;
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};
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// RPC_NAT_STATUS
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struct RPC_NAT_STATUS
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{
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char HubName[MAX_HUBNAME_LEN + 1]; // HUB name
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UINT NumTcpSessions; // Number of TCP sessions
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UINT NumUdpSessions; // Ntmber of UDP sessions
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UINT NumIcmpSessions; // Nymber of ICMP sessions
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UINT NumDnsSessions; // Number of DNS sessions
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UINT NumDhcpClients; // Number of DHCP clients
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bool IsKernelMode; // Whether kernel mode
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};
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// RPC_NAT_INFO *
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struct RPC_NAT_INFO
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{
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char NatProductName[128]; // Server product name
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char NatVersionString[128]; // Server version string
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char NatBuildInfoString[128]; // Server build information string
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UINT NatVerInt; // Server version integer value
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UINT NatBuildInt; // Server build number integer value
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char NatHostName[MAX_HOST_NAME_LEN + 1]; // Server host name
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OS_INFO OsInfo; // OS information
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MEMINFO MemInfo; // Memory information
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};
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// RPC_ENUM_NAT_ITEM
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struct RPC_ENUM_NAT_ITEM
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{
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UINT Id; // ID
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UINT Protocol; // Protocol
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UINT SrcIp; // Source IP address
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char SrcHost[MAX_HOST_NAME_LEN + 1]; // Source host name
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UINT SrcPort; // Source port number
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UINT DestIp; // Destination IP address
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char DestHost[MAX_HOST_NAME_LEN + 1]; // Destination host name
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UINT DestPort; // Destination port number
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UINT64 CreatedTime; // Connection time
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UINT64 LastCommTime; // Last communication time
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UINT64 SendSize; // Transmission size
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UINT64 RecvSize; // Receive size
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UINT TcpStatus; // TCP state
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};
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// RPC_ENUM_NAT *
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struct RPC_ENUM_NAT
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{
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char HubName[MAX_HUBNAME_LEN + 1]; // HUB name
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UINT NumItem; // Number of items
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RPC_ENUM_NAT_ITEM *Items; // Item
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};
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// RPC_ENUM_DHCP_ITEM
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struct RPC_ENUM_DHCP_ITEM
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{
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UINT Id; // ID
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UINT64 LeasedTime; // Lease time
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UINT64 ExpireTime; // Expiration date
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UCHAR MacAddress[6]; // MAC address
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UCHAR Padding[2]; // Padding
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UINT IpAddress; // IP address
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UINT Mask; // Subnet mask
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char Hostname[MAX_HOST_NAME_LEN + 1]; // Host name
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};
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// RPC_ENUM_DHCP *
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struct RPC_ENUM_DHCP
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{
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char HubName[MAX_HUBNAME_LEN + 1]; // HUB name
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UINT NumItem; // Number of items
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RPC_ENUM_DHCP_ITEM *Items; // Item
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};
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// Function prototype
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NAT *NiNewNat();
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NAT *NiNewNatEx(SNAT *snat, VH_OPTION *o);
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void NiFreeNat(NAT *n);
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void NiInitConfig(NAT *n);
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void NiFreeConfig(NAT *n);
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void NiInitDefaultConfig(NAT *n);
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void NiSetDefaultVhOption(NAT *n, VH_OPTION *o);
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void NiClearUnsupportedVhOptionForDynamicHub(VH_OPTION *o, bool initial);
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void NiWriteConfig(NAT *n);
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void NiWriteVhOption(NAT *n, FOLDER *root);
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void NiWriteVhOptionEx(VH_OPTION *o, FOLDER *root);
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void NiWriteClientData(NAT *n, FOLDER *root);
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void NiLoadVhOption(NAT *n, FOLDER *root);
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void NiLoadVhOptionEx(VH_OPTION *o, FOLDER *root);
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bool NiLoadConfig(NAT *n, FOLDER *root);
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void NiLoadClientData(NAT *n, FOLDER *root);
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void NiInitAdminAccept(NAT *n);
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void NiFreeAdminAccept(NAT *n);
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void NiListenThread(THREAD *thread, void *param);
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void NiAdminThread(THREAD *thread, void *param);
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void NiAdminMain(NAT *n, SOCK *s);
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PACK *NiRpcServer(RPC *r, char *name, PACK *p);
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RPC *NatAdminConnect(CEDAR *cedar, char *hostname, UINT port, void *hashed_password, UINT *err);
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void NatAdminDisconnect(RPC *r);
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void NtStartNat();
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void NtStopNat();
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void NtInit();
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void NtFree();
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UINT NtOnline(NAT *n, RPC_DUMMY *t);
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UINT NtOffline(NAT *n, RPC_DUMMY *t);
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UINT NtSetHostOption(NAT *n, VH_OPTION *t);
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UINT NtGetHostOption(NAT *n, VH_OPTION *t);
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UINT NtSetClientConfig(NAT *n, RPC_CREATE_LINK *t);
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UINT NtGetClientConfig(NAT *n, RPC_CREATE_LINK *t);
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UINT NtGetStatus(NAT *n, RPC_NAT_STATUS *t);
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UINT NtGetInfo(NAT *n, RPC_NAT_INFO *t);
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UINT NtEnumNatList(NAT *n, RPC_ENUM_NAT *t);
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UINT NtEnumDhcpList(NAT *n, RPC_ENUM_DHCP *t);
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UINT NtSetPassword(NAT *n, RPC_SET_PASSWORD *t);
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UINT NcOnline(RPC *r, RPC_DUMMY *t);
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UINT NcOffline(RPC *r, RPC_DUMMY *t);
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UINT NcSetHostOption(RPC *r, VH_OPTION *t);
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UINT NcGetHostOption(RPC *r, VH_OPTION *t);
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UINT NcSetClientConfig(RPC *r, RPC_CREATE_LINK *t);
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UINT NcGetClientConfig(RPC *r, RPC_CREATE_LINK *t);
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UINT NcGetStatus(RPC *r, RPC_NAT_STATUS *t);
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UINT NcGetInfo(RPC *r, RPC_NAT_INFO *t);
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UINT NcEnumNatList(RPC *r, RPC_ENUM_NAT *t);
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UINT NcEnumDhcpList(RPC *r, RPC_ENUM_DHCP *t);
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UINT NcSetPassword(RPC *r, RPC_SET_PASSWORD *t);
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void InRpcEnumDhcp(RPC_ENUM_DHCP *t, PACK *p);
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void OutRpcEnumDhcp(PACK *p, RPC_ENUM_DHCP *t);
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void FreeRpcEnumDhcp(RPC_ENUM_DHCP *t);
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void InRpcEnumNat(RPC_ENUM_NAT *t, PACK *p);
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void OutRpcEnumNat(PACK *p, RPC_ENUM_NAT *t);
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void FreeRpcEnumNat(RPC_ENUM_NAT *t);
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void InRpcNatInfo(RPC_NAT_INFO *t, PACK *p);
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void OutRpcNatInfo(PACK *p, RPC_NAT_INFO *t);
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void FreeRpcNatInfo(RPC_NAT_INFO *t);
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void InRpcNatStatus(RPC_NAT_STATUS *t, PACK *p);
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void OutRpcNatStatus(PACK *p, RPC_NAT_STATUS *t);
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void FreeRpcNatStatus(RPC_NAT_STATUS *t);
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void InVhOption(VH_OPTION *t, PACK *p);
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void OutVhOption(PACK *p, VH_OPTION *t);
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void InRpcDummy(RPC_DUMMY *t, PACK *p);
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void OutRpcDummy(PACK *p, RPC_DUMMY *t);
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#endif // NAT_H
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// Developed by SoftEther VPN Project at University of Tsukuba in Japan.
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// Department of Computer Science has dozens of overly-enthusiastic geeks.
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// Join us: http://www.tsukuba.ac.jp/english/admission/
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