167 lines
6.6 KiB
C
167 lines
6.6 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 the Apache License, Version 2.0.
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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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// Copyright (c) all contributors on SoftEther VPN project in GitHub.
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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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// This stable branch is officially managed by Daiyuu Nobori, the owner of SoftEther VPN Project.
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// Pull requests should be sent to the Developer Edition Master Repository on https://github.com/SoftEtherVPN/SoftEtherVPN
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//
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// License: The Apache License, Version 2.0
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// DISCLAIMER
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// ==========
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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//
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// THIS SOFTWARE IS DEVELOPED IN JAPAN, AND DISTRIBUTED FROM JAPAN, UNDER
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// JAPANESE LAWS. YOU MUST AGREE IN ADVANCE TO USE, COPY, MODIFY, MERGE, PUBLISH,
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// DISTRIBUTE, SUBLICENSE, AND/OR SELL COPIES OF THIS SOFTWARE, THAT ANY
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// JURIDICAL DISPUTES WHICH ARE CONCERNED TO THIS SOFTWARE OR ITS CONTENTS,
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// AGAINST US (SOFTETHER PROJECT, SOFTETHER CORPORATION, DAIYUU NOBORI OR OTHER
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// SUPPLIERS), OR ANY JURIDICAL DISPUTES AGAINST US WHICH ARE CAUSED BY ANY KIND
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// OF USING, COPYING, MODIFYING, MERGING, PUBLISHING, DISTRIBUTING, SUBLICENSING,
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// AND/OR 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 EXCLUSIVE
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// JURISDICTION AND VENUE IN THE COURTS SITTING IN TOKYO, JAPAN. YOU MUST WAIVE
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// ALL DEFENSES OF LACK OF PERSONAL JURISDICTION AND FORUM NON CONVENIENS.
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// PROCESS MAY BE SERVED ON EITHER PARTY IN THE MANNER AUTHORIZED BY APPLICABLE
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// 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 YOU HAVE
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// A CONFIRMATION THAT THIS SOFTWARE DOES NOT VIOLATE ANY CRIMINAL LAWS OR CIVIL
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// RIGHTS IN THAT PARTICULAR COUNTRY. USING THIS SOFTWARE IN OTHER COUNTRIES IS
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// COMPLETELY AT YOUR OWN RISK. THE SOFTETHER VPN PROJECT HAS DEVELOPED AND
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// DISTRIBUTED THIS SOFTWARE TO COMPLY ONLY WITH THE JAPANESE LAWS AND EXISTING
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// CIVIL RIGHTS INCLUDING PATENTS WHICH ARE SUBJECTS APPLY IN JAPAN. OTHER
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// COUNTRIES' LAWS OR CIVIL RIGHTS ARE NONE OF OUR CONCERNS NOR RESPONSIBILITIES.
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// WE HAVE NEVER INVESTIGATED ANY CRIMINAL REGULATIONS, CIVIL LAWS OR
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// INTELLECTUAL PROPERTY RIGHTS INCLUDING PATENTS IN ANY OF OTHER 200+ COUNTRIES
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// AND TERRITORIES. BY NATURE, THERE ARE 200+ REGIONS IN THE WORLD, WITH
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// DIFFERENT LAWS. IT IS IMPOSSIBLE TO VERIFY EVERY COUNTRIES' LAWS, REGULATIONS
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// AND CIVIL RIGHTS TO MAKE THE SOFTWARE COMPLY WITH ALL COUNTRIES' LAWS BY THE
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// PROJECT. EVEN IF YOU WILL BE SUED BY A PRIVATE ENTITY OR BE DAMAGED BY A
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// PUBLIC SERVANT IN YOUR COUNTRY, THE DEVELOPERS OF THIS SOFTWARE WILL NEVER BE
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// LIABLE TO RECOVER OR COMPENSATE SUCH DAMAGES, CRIMINAL OR CIVIL
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// RESPONSIBILITIES. NOTE THAT THIS LINE IS NOT LICENSE RESTRICTION BUT JUST A
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// STATEMENT FOR WARNING AND DISCLAIMER.
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//
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// READ AND UNDERSTAND THE 'WARNING.TXT' FILE BEFORE USING THIS SOFTWARE.
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// SOME SOFTWARE PROGRAMS FROM THIRD PARTIES ARE INCLUDED ON THIS SOFTWARE WITH
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// LICENSE CONDITIONS WHICH ARE DESCRIBED ON THE 'THIRD_PARTY.TXT' FILE.
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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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// AzureClient.h
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// Header of AzureClient.c
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#ifndef AZURE_CLIENT_H
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#define AZURE_CLIENT_H
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// Constants
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#define AZURE_SERVER_PORT 443
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#define AZURE_PROTOCOL_CONTROL_SIGNATURE "ACTL"
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#define AZURE_PROTOCOL_DATA_SIANGTURE "AZURE_CONNECT_SIGNATURE!"
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#define AZURE_PROTOCOL_CONTROL_TIMEOUT_DEFAULT (5 * 1000) // Default timeout
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#define AZURE_CONNECT_INITIAL_RETRY_INTERVAL (1 * 1000) // Initial re-connection interval (15 * 1000)
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#define AZURE_CONNECT_MAX_RETRY_INTERVAL (60 * 60 * 1000) // Maximum re-connection interval
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#define AZURE_DOMAIN_SUFFIX ".vpnazure.net"
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#define AZURE_SERVER_MAX_KEEPALIVE (5 * 60 * 1000)
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#define AZURE_SERVER_MAX_TIMEOUT (10 * 60 * 1000)
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#define AZURE_VIA_PROXY_TIMEOUT 5000
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// Communications parameter
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struct AZURE_PARAM
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{
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UINT ControlKeepAlive;
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UINT ControlTimeout;
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UINT DataTimeout;
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UINT SslTimeout;
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};
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// VPN Azure Client
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struct AZURE_CLIENT
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{
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CEDAR *Cedar;
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SERVER *Server;
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LOCK *Lock;
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DDNS_CLIENT_STATUS DDnsStatus;
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volatile bool IsEnabled;
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EVENT *Event;
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volatile bool Halt;
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THREAD *MainThread;
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volatile UINT IpStatusRevision;
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DDNS_CLIENT_STATUS DDnsStatusCopy;
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SOCK *CurrentSock;
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char ConnectingAzureIp[MAX_SIZE];
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AZURE_PARAM AzureParam;
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volatile UINT DDnsTriggerInt;
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volatile bool IsConnected;
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};
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// Function prototype
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AZURE_CLIENT *NewAzureClient(CEDAR *cedar, SERVER *server);
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void FreeAzureClient(AZURE_CLIENT *ac);
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void AcApplyCurrentConfig(AZURE_CLIENT *ac, DDNS_CLIENT_STATUS *ddns_status);
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void AcMainThread(THREAD *thread, void *param);
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void AcSetEnable(AZURE_CLIENT *ac, bool enabled);
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bool AcGetEnable(AZURE_CLIENT *ac);
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void AcWaitForRequest(AZURE_CLIENT *ac, SOCK *s, AZURE_PARAM *param);
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#endif // AZURE_CLIENT_H
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