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Diffstat (limited to 'src/Cedar/Nat.h')
-rw-r--r-- | src/Cedar/Nat.h | 291 |
1 files changed, 291 insertions, 0 deletions
diff --git a/src/Cedar/Nat.h b/src/Cedar/Nat.h new file mode 100644 index 00000000..60a865ea --- /dev/null +++ b/src/Cedar/Nat.h @@ -0,0 +1,291 @@ +// SoftEther VPN Source Code
+// Cedar Communication Module
+//
+// SoftEther VPN Server, Client and Bridge are free software under GPLv2.
+//
+// Copyright (c) 2012-2014 Daiyuu Nobori.
+// Copyright (c) 2012-2014 SoftEther VPN Project, University of Tsukuba, Japan.
+// Copyright (c) 2012-2014 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 IT IN OTHER COUNTRIES. IMPORTING THIS
+// SOFTWARE INTO OTHER COUNTRIES IS AT YOUR OWN RISK. SOME COUNTRIES
+// PROHIBIT ENCRYPTED COMMUNICATIONS. USING THIS SOFTWARE IN OTHER
+// COUNTRIES MIGHT BE RESTRICTED.
+//
+//
+// 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.
+
+
+// Nat.h
+// Header of Nat.c
+
+#ifndef NAT_H
+#define NAT_H
+
+// Constants
+#define NAT_CONFIG_FILE_NAME "@vpn_router.config" // NAT configuration file
+#define DEFAULT_NAT_ADMIN_PORT 2828 // Default port number for management
+#define NAT_ADMIN_PORT_LISTEN_INTERVAL 1000 // Interval for trying to open a port for management
+#define NAT_FILE_SAVE_INTERVAL (30 * 1000) // Interval to save
+
+
+// NAT object
+struct NAT
+{
+ LOCK *lock; // Lock
+ UCHAR HashedPassword[SHA1_SIZE]; // Administrative password
+ VH_OPTION Option; // Option
+ CEDAR *Cedar; // Cedar
+ UINT AdminPort; // Management port number
+ bool Online; // Online flag
+ VH *Virtual; // Virtual host object
+ CLIENT_OPTION *ClientOption; // Client Option
+ CLIENT_AUTH *ClientAuth; // Client authentication data
+ CFG_RW *CfgRw; // Config file R/W
+ THREAD *AdminAcceptThread; // Management connection reception thread
+ SOCK *AdminListenSock; // Management port socket
+ EVENT *HaltEvent; // Halting event
+ volatile bool Halt; // Halting flag
+ LIST *AdminList; // Management thread list
+ X *AdminX; // Server certificate for management
+ K *AdminK; // Server private key for management
+ SNAT *SecureNAT; // SecureNAT object
+};
+
+// NAT management connection
+struct NAT_ADMIN
+{
+ NAT *Nat; // NAT
+ SOCK *Sock; // Socket
+ THREAD *Thread; // Thread
+};
+
+// RPC_DUMMY
+struct RPC_DUMMY
+{
+ UINT DummyValue;
+};
+
+// RPC_NAT_STATUS
+struct RPC_NAT_STATUS
+{
+ char HubName[MAX_HUBNAME_LEN + 1]; // HUB name
+ UINT NumTcpSessions; // Number of TCP sessions
+ UINT NumUdpSessions; // Ntmber of UDP sessions
+ UINT NumIcmpSessions; // Nymber of ICMP sessions
+ UINT NumDnsSessions; // Number of DNS sessions
+ UINT NumDhcpClients; // Number of DHCP clients
+ bool IsKernelMode; // Whether kernel mode
+};
+
+// RPC_NAT_INFO *
+struct RPC_NAT_INFO
+{
+ char NatProductName[128]; // Server product name
+ char NatVersionString[128]; // Server version string
+ char NatBuildInfoString[128]; // Server build information string
+ UINT NatVerInt; // Server version integer value
+ UINT NatBuildInt; // Server build number integer value
+ char NatHostName[MAX_HOST_NAME_LEN + 1]; // Server host name
+ OS_INFO OsInfo; // OS information
+ MEMINFO MemInfo; // Memory information
+};
+
+// RPC_ENUM_NAT_ITEM
+struct RPC_ENUM_NAT_ITEM
+{
+ UINT Id; // ID
+ UINT Protocol; // Protocol
+ UINT SrcIp; // Source IP address
+ char SrcHost[MAX_HOST_NAME_LEN + 1]; // Source host name
+ UINT SrcPort; // Source port number
+ UINT DestIp; // Destination IP address
+ char DestHost[MAX_HOST_NAME_LEN + 1]; // Destination host name
+ UINT DestPort; // Destination port number
+ UINT64 CreatedTime; // Connection time
+ UINT64 LastCommTime; // Last communication time
+ UINT64 SendSize; // Transmission size
+ UINT64 RecvSize; // Receive size
+ UINT TcpStatus; // TCP state
+};
+
+// RPC_ENUM_NAT *
+struct RPC_ENUM_NAT
+{
+ char HubName[MAX_HUBNAME_LEN + 1]; // HUB name
+ UINT NumItem; // Number of items
+ RPC_ENUM_NAT_ITEM *Items; // Item
+};
+
+// RPC_ENUM_DHCP_ITEM
+struct RPC_ENUM_DHCP_ITEM
+{
+ UINT Id; // ID
+ UINT64 LeasedTime; // Lease time
+ UINT64 ExpireTime; // Expiration date
+ UCHAR MacAddress[6]; // MAC address
+ UCHAR Padding[2]; // Padding
+ UINT IpAddress; // IP address
+ UINT Mask; // Subnet mask
+ char Hostname[MAX_HOST_NAME_LEN + 1]; // Host name
+};
+
+// RPC_ENUM_DHCP *
+struct RPC_ENUM_DHCP
+{
+ char HubName[MAX_HUBNAME_LEN + 1]; // HUB name
+ UINT NumItem; // Number of items
+ RPC_ENUM_DHCP_ITEM *Items; // Item
+};
+
+
+// Function prototype
+NAT *NiNewNat();
+NAT *NiNewNatEx(SNAT *snat, VH_OPTION *o);
+void NiFreeNat(NAT *n);
+void NiInitConfig(NAT *n);
+void NiFreeConfig(NAT *n);
+void NiInitDefaultConfig(NAT *n);
+void NiSetDefaultVhOption(NAT *n, VH_OPTION *o);
+void NiClearUnsupportedVhOptionForDynamicHub(VH_OPTION *o, bool initial);
+void NiWriteConfig(NAT *n);
+void NiWriteVhOption(NAT *n, FOLDER *root);
+void NiWriteVhOptionEx(VH_OPTION *o, FOLDER *root);
+void NiWriteClientData(NAT *n, FOLDER *root);
+void NiLoadVhOption(NAT *n, FOLDER *root);
+void NiLoadVhOptionEx(VH_OPTION *o, FOLDER *root);
+bool NiLoadConfig(NAT *n, FOLDER *root);
+void NiLoadClientData(NAT *n, FOLDER *root);
+void NiInitAdminAccept(NAT *n);
+void NiFreeAdminAccept(NAT *n);
+void NiListenThread(THREAD *thread, void *param);
+void NiAdminThread(THREAD *thread, void *param);
+void NiAdminMain(NAT *n, SOCK *s);
+PACK *NiRpcServer(RPC *r, char *name, PACK *p);
+
+RPC *NatAdminConnect(CEDAR *cedar, char *hostname, UINT port, void *hashed_password, UINT *err);
+void NatAdminDisconnect(RPC *r);
+
+void NtStartNat();
+void NtStopNat();
+void NtInit();
+void NtFree();
+
+
+UINT NtOnline(NAT *n, RPC_DUMMY *t);
+UINT NtOffline(NAT *n, RPC_DUMMY *t);
+UINT NtSetHostOption(NAT *n, VH_OPTION *t);
+UINT NtGetHostOption(NAT *n, VH_OPTION *t);
+UINT NtSetClientConfig(NAT *n, RPC_CREATE_LINK *t);
+UINT NtGetClientConfig(NAT *n, RPC_CREATE_LINK *t);
+UINT NtGetStatus(NAT *n, RPC_NAT_STATUS *t);
+UINT NtGetInfo(NAT *n, RPC_NAT_INFO *t);
+UINT NtEnumNatList(NAT *n, RPC_ENUM_NAT *t);
+UINT NtEnumDhcpList(NAT *n, RPC_ENUM_DHCP *t);
+UINT NtSetPassword(NAT *n, RPC_SET_PASSWORD *t);
+
+
+UINT NcOnline(RPC *r, RPC_DUMMY *t);
+UINT NcOffline(RPC *r, RPC_DUMMY *t);
+UINT NcSetHostOption(RPC *r, VH_OPTION *t);
+UINT NcGetHostOption(RPC *r, VH_OPTION *t);
+UINT NcSetClientConfig(RPC *r, RPC_CREATE_LINK *t);
+UINT NcGetClientConfig(RPC *r, RPC_CREATE_LINK *t);
+UINT NcGetStatus(RPC *r, RPC_NAT_STATUS *t);
+UINT NcGetInfo(RPC *r, RPC_NAT_INFO *t);
+UINT NcEnumNatList(RPC *r, RPC_ENUM_NAT *t);
+UINT NcEnumDhcpList(RPC *r, RPC_ENUM_DHCP *t);
+UINT NcSetPassword(RPC *r, RPC_SET_PASSWORD *t);
+
+
+
+
+void InRpcEnumDhcp(RPC_ENUM_DHCP *t, PACK *p);
+void OutRpcEnumDhcp(PACK *p, RPC_ENUM_DHCP *t);
+void FreeRpcEnumDhcp(RPC_ENUM_DHCP *t);
+void InRpcEnumNat(RPC_ENUM_NAT *t, PACK *p);
+void OutRpcEnumNat(PACK *p, RPC_ENUM_NAT *t);
+void FreeRpcEnumNat(RPC_ENUM_NAT *t);
+void InRpcNatInfo(RPC_NAT_INFO *t, PACK *p);
+void OutRpcNatInfo(PACK *p, RPC_NAT_INFO *t);
+void FreeRpcNatInfo(RPC_NAT_INFO *t);
+void InRpcNatStatus(RPC_NAT_STATUS *t, PACK *p);
+void OutRpcNatStatus(PACK *p, RPC_NAT_STATUS *t);
+void FreeRpcNatStatus(RPC_NAT_STATUS *t);
+void InVhOption(VH_OPTION *t, PACK *p);
+void OutVhOption(PACK *p, VH_OPTION *t);
+void InRpcDummy(RPC_DUMMY *t, PACK *p);
+void OutRpcDummy(PACK *p, RPC_DUMMY *t);
+
+
+
+
+#endif // NAT_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/
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