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https://github.com/SoftEtherVPN/SoftEtherVPN.git
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Cedar: replace "Interop_" and "IPsec_" with "Proto_" in the protocol-specific source/header files' names
"IPsec_IPC" has been renamed to "IPC" because it's not related to third-party protocols.
This commit is contained in:
Davide Beatrici
266
src/Cedar/IPC.h
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266
src/Cedar/IPC.h
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// SoftEther VPN Source Code - Developer Edition Master Branch
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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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// IPC.h
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// Header of IPC.c
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#ifndef IPC_H
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#define IPC_H
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// Constants
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#define IPC_ARP_LIFETIME (3 * 60 * 1000)
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#define IPC_ARP_GIVEUPTIME (1 * 1000)
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#define IPC_DHCP_TIMEOUT (5 * 1000)
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#define IPC_DHCP_MIN_LEASE 5
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#define IPC_DHCP_DEFAULT_LEASE 3600
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#define IPC_MAX_PACKET_QUEUE_LEN 10000
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#define IPC_DHCP_VENDOR_ID "MSFT 5.0"
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#define IPC_PASSWORD_MSCHAPV2_TAG "xH7DiNlurDhcYV4a:"
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// ARP table entry
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struct IPC_ARP
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{
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IP Ip; // IP address
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bool Resolved; // Whether the MAC address have been resolved
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UCHAR MacAddress[6]; // MAC address
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UINT64 GiveupTime; // Time to give up (in the case of unresolved)
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UINT64 ExpireTime; // Expiration date (If resolved)
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QUEUE *PacketQueue; // Transmission packet queue
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};
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// DHCP release queue
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struct IPC_DHCP_RELEASE_QUEUE
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{
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DHCP_OPTION_LIST Req;
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UINT TranId;
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UCHAR MacAddress[6];
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};
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// IPC_PARAM
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struct IPC_PARAM
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{
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char ClientName[MAX_SIZE];
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char Postfix[MAX_SIZE];
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char HubName[MAX_HUBNAME_LEN + 1];
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char UserName[MAX_USERNAME_LEN + 1];
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char Password[MAX_PASSWORD_LEN + 1];
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IP ClientIp;
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UINT ClientPort;
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IP ServerIp;
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UINT ServerPort;
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char ClientHostname[MAX_SIZE];
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char CryptName[MAX_SIZE];
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bool BridgeMode;
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UINT Mss;
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bool IsL3Mode;
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X *ClientCertificate;
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};
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// IPC_ASYNC object
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struct IPC_ASYNC
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{
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CEDAR *Cedar; // Cedar
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IPC_PARAM Param; // Parameters for creating IPC
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THREAD *Thread; // Thread
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SOCK_EVENT *SockEvent; // Socket events that is set when the connection is completed
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bool Done; // Processing completion flag
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IPC *Ipc; // IPC object (if it fails to connect, the value is NULL)
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TUBE *TubeForDisconnect; // Tube for disconnection notification
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UINT ErrorCode; // Error code in the case of failing to connect
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DHCP_OPTION_LIST L3ClientAddressOption; // Client IP address option (Only in the case of L3 mode)
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UINT64 L3DhcpRenewInterval; // DHCP update interval
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UINT64 L3NextDhcpRenewTick; // DHCP renewal time of the next
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bool DhcpAllocFailed; // Failed to get IP address from the DHCP server
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};
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// IPC object
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struct IPC
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{
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CEDAR *Cedar;
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char HubName[MAX_HUBNAME_LEN + 1];
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char UserName[MAX_USERNAME_LEN + 1];
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char Password[MAX_PASSWORD_LEN + 1];
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char ClientHostname[MAX_SIZE];
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UCHAR random[SHA1_SIZE];
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char SessionName[MAX_SESSION_NAME_LEN + 1];
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char ConnectionName[MAX_CONNECTION_NAME_LEN + 1];
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POLICY *Policy;
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SOCK *Sock;
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INTERRUPT_MANAGER *Interrupt; // Interrupt manager
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IP ClientIPAddress; // IP address of the client
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IP SubnetMask; // Subnet mask of the client
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IP DefaultGateway; // Default gateway address
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IP BroadcastAddress; // Broadcast address
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UCHAR MacAddress[6]; // MAC address
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UCHAR Padding[2];
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LIST *ArpTable; // ARP table
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QUEUE *IPv4ReceivedQueue; // IPv4 reception queue
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TUBE_FLUSH_LIST *FlushList; // Tube Flush List
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UCHAR MsChapV2_ServerResponse[20]; // Server response
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DHCP_CLASSLESS_ROUTE_TABLE ClasslessRoute; // Classless routing table
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};
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// MS-CHAPv2 authentication information
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struct IPC_MSCHAP_V2_AUTHINFO
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{
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char MsChapV2_PPPUsername[MAX_SIZE]; // MS-CHAPv2 Username
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UCHAR MsChapV2_ServerChallenge[16]; // MS-CHAPv2 Server Challenge
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UCHAR MsChapV2_ClientChallenge[16]; // MS-CHAPv2 Client Challenge
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UCHAR MsChapV2_ClientResponse[24]; // MS-CHAPv2 Client Response
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EAP_CLIENT *MsChapV2_EapClient; // EAP client
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};
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IPC *NewIPC(CEDAR *cedar, char *client_name, char *postfix, char *hubname, char *username, char *password,
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UINT *error_code, IP *client_ip, UINT client_port, IP *server_ip, UINT server_port,
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char *client_hostname, char *crypt_name,
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bool bridge_mode, UINT mss, EAP_CLIENT *eap_client, X *client_certificate);
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IPC *NewIPCByParam(CEDAR *cedar, IPC_PARAM *param, UINT *error_code);
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IPC *NewIPCBySock(CEDAR *cedar, SOCK *s, void *mac_address);
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void FreeIPC(IPC *ipc);
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bool IsIPCConnected(IPC *ipc);
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void IPCSetSockEventWhenRecvL2Packet(IPC *ipc, SOCK_EVENT *e);
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void IPCSendL2(IPC *ipc, void *data, UINT size);
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void IPCSendIPv4(IPC *ipc, void *data, UINT size);
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BLOCK *IPCRecvL2(IPC *ipc);
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BLOCK *IPCRecvIPv4(IPC *ipc);
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void IPCProcessInterrupts(IPC *ipc);
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void IPCProcessL3Events(IPC *ipc);
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void IPCProcessL3EventsEx(IPC *ipc, UINT64 now);
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bool IPCSetIPv4Parameters(IPC *ipc, IP *ip, IP *subnet, IP *gw, DHCP_CLASSLESS_ROUTE_TABLE *rt);
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IPC_ARP *IPCNewARP(IP *ip, UCHAR *mac_address);
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void IPCFreeARP(IPC_ARP *a);
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int IPCCmpArpTable(void *p1, void *p2);
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void IPCSendIPv4Unicast(IPC *ipc, void *data, UINT size, IP *next_ip);
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IPC_ARP *IPCSearchArpTable(IPC *ipc, IP *ip);
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void IPCSendIPv4WithDestMacAddr(IPC *ipc, void *data, UINT size, UCHAR *dest_mac_addr);
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void IPCFlushArpTable(IPC *ipc);
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void IPCFlushArpTableEx(IPC *ipc, UINT64 now);
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void IPCProcessArp(IPC *ipc, BLOCK *b);
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void IPCAssociateOnArpTable(IPC *ipc, IP *ip, UCHAR *mac_address);
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bool IsValidUnicastMacAddress(UCHAR *mac);
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bool IsValidUnicastIPAddress4(IP *ip);
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bool IsValidUnicastIPAddressUINT4(UINT ip);
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DHCPV4_DATA *IPCSendDhcpRequest(IPC *ipc, IP *dest_ip, UINT tran_id, DHCP_OPTION_LIST *opt, UINT expecting_code, UINT timeout, TUBE *discon_poll_tube);
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BUF *IPCBuildDhcpRequest(IPC *ipc, IP *dest_ip, UINT tran_id, DHCP_OPTION_LIST *opt);
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BUF *IPCBuildDhcpRequestOptions(IPC *ipc, DHCP_OPTION_LIST *opt);
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bool IPCDhcpAllocateIP(IPC *ipc, DHCP_OPTION_LIST *opt, TUBE *discon_poll_tube);
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bool IPCDhcpRequestInformIP(IPC *ipc, DHCP_OPTION_LIST *opt, TUBE *discon_poll_tube, IP *client_ip);
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void IPCDhcpRenewIP(IPC *ipc, IP *dhcp_server);
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void IPCDhcpFreeIP(IPC *ipc, IP *dhcp_server);
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IPC_ASYNC *NewIPCAsync(CEDAR *cedar, IPC_PARAM *param, SOCK_EVENT *sock_event);
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void IPCAsyncThreadProc(THREAD *thread, void *param);
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void FreeIPCAsync(IPC_ASYNC *a);
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bool ParseAndExtractMsChapV2InfoFromPassword(IPC_MSCHAP_V2_AUTHINFO *d, char *password);
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#endif // IPC_H
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