mirror of
https://github.com/SoftEtherVPN/SoftEtherVPN.git
synced 2025-07-10 01:34:58 +03:00
v4.03-9408-rtm
This commit is contained in:
984
src/Cedar/DDNS.c
Normal file
984
src/Cedar/DDNS.c
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@ -0,0 +1,984 @@
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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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||||
// 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.
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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
|
||||
// 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.
|
||||
//
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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
|
||||
// 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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// DDNS.c
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// Dynamic DNS Client
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#include "CedarPch.h"
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// Get the current status of the DDNS client
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void DCGetStatus(DDNS_CLIENT *c, DDNS_CLIENT_STATUS *st)
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{
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// Validate arguments
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if (c == NULL || st == NULL)
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||||
{
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return;
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}
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Zero(st, sizeof(DDNS_CLIENT_STATUS));
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Lock(c->Lock);
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{
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st->Err_IPv4 = c->Err_IPv4;
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st->Err_IPv6 = c->Err_IPv6;
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StrCpy(st->CurrentHostName, sizeof(st->CurrentHostName), c->CurrentHostName);
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StrCpy(st->CurrentFqdn, sizeof(st->CurrentFqdn), c->CurrentFqdn);
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StrCpy(st->DnsSuffix, sizeof(st->DnsSuffix), c->DnsSuffix);
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StrCpy(st->CurrentIPv4, sizeof(st->CurrentIPv4), c->CurrentIPv4);
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StrCpy(st->CurrentIPv6, sizeof(st->CurrentIPv6), c->CurrentIPv6);
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StrCpy(st->CurrentAzureIp, sizeof(st->CurrentAzureIp), c->CurrentAzureIp);
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st->CurrentAzureTimestamp = c->CurrentAzureTimestamp;
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StrCpy(st->CurrentAzureSignature, sizeof(st->CurrentAzureSignature), c->CurrentAzureSignature);
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StrCpy(st->AzureCertHash, sizeof(st->AzureCertHash), c->AzureCertHash);
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Copy(&st->InternetSetting, &c->InternetSetting, sizeof(INTERNET_SETTING));
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}
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Unlock(c->Lock);
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}
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// Set the Internet settings
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void DCSetInternetSetting(DDNS_CLIENT *c, INTERNET_SETTING *t)
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{
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// Validate arguments
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if (c == NULL || t == NULL)
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||||
{
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return;
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}
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Copy(&c->InternetSetting, t, sizeof(INTERNET_SETTING));
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}
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// Get the Internet settings
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void DCGetInternetSetting(DDNS_CLIENT *c, INTERNET_SETTING *t)
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{
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// Validate arguments
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if (c == NULL || t == NULL)
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{
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return;
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}
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Copy(t, &c->InternetSetting, sizeof(INTERNET_SETTING));
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}
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// Changing the host name
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UINT DCChangeHostName(DDNS_CLIENT *c, char *hostname)
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{
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UINT ret;
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DDNS_REGISTER_PARAM p;
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// Validate arguments
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if (c == NULL || hostname == NULL)
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{
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return ERR_INTERNAL_ERROR;
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}
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if (StrLen(hostname) > 32)
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{
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// The host name is too long
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return ERR_DDNS_HOSTNAME_TOO_LONG;
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}
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Zero(&p, sizeof(p));
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StrCpy(p.NewHostname, sizeof(p.NewHostname), hostname);
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// Use one of IPv4 or IPv6 if it seems to be communication
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if (c->Err_IPv4 == ERR_NO_ERROR)
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{
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// IPv4
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ret = DCRegister(c, false, &p, NULL);
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}
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else if (c->Err_IPv6 == ERR_NO_ERROR)
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{
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// IPv6
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ret = DCRegister(c, true, &p, NULL);
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}
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else
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{
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// Try both
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ret = DCRegister(c, true, &p, NULL);
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if (ret != ERR_NO_ERROR)
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{
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ret = DCRegister(c, false, &p, NULL);
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}
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}
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if (ret == ERR_NO_ERROR)
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{
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DDNS_CLIENT_STATUS st;
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DCGetStatus(c, &st);
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SiApplyAzureConfig(c->Cedar->Server, &st);
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}
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return ret;
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}
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// DDNS client thread
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void DCThread(THREAD *thread, void *param)
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{
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DDNS_CLIENT *c;
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INTERRUPT_MANAGER *interrput;
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UINT last_ip_hash = 0;
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void *route_change_poller = NULL;
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bool last_time_ip_changed = false;
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UINT last_azure_ddns_trigger_int = 0;
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UINT last_vgs_ddns_trigger_int = 0;
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UINT n;
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INTERNET_SETTING last_t;
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// Validate arguments
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if (thread == NULL || param == NULL)
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{
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return;
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}
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c = (DDNS_CLIENT *)param;
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interrput = NewInterruptManager();
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route_change_poller = NewRouteChange();
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IsRouteChanged(route_change_poller);
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Zero(&last_t, sizeof(last_t));
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n = 0;
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while (c->Halt == false)
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{
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UINT ip_hash = GetHostIPAddressHash32();
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UINT interval;
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UINT64 now = Tick64();
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bool ip_changed = false;
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bool azure_client_triggered = false;
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bool internet_setting_changed = false;
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bool vgs_server_triggered = false;
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if (c->Cedar->Server != NULL && c->Cedar->Server->AzureClient != NULL)
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{
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if (c->Cedar->Server->AzureClient->DDnsTriggerInt != last_azure_ddns_trigger_int)
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{
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azure_client_triggered = true;
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last_azure_ddns_trigger_int = c->Cedar->Server->AzureClient->DDnsTriggerInt;
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last_time_ip_changed = false;
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Debug("DDNS Thread Triggered by AzureClient.\n");
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}
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}
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if (Cmp(&last_t, &c->InternetSetting, sizeof(INTERNET_SETTING)) != 0)
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{
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Copy(&last_t, &c->InternetSetting, sizeof(INTERNET_SETTING));
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internet_setting_changed = true;
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last_time_ip_changed = false;
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}
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if (ip_hash != last_ip_hash)
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{
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last_time_ip_changed = false;
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Debug("DDNS Thread Triggered by IP Hash Changed.\n");
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}
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if ((ip_hash != last_ip_hash) || (IsRouteChanged(route_change_poller)) || azure_client_triggered || internet_setting_changed || vgs_server_triggered)
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{
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if (last_time_ip_changed == false)
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{
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// Call all getting functions from the beginning if the routing
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// table or the IP address of this host has changed
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c->NextRegisterTick_IPv4 = 0;
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c->NextRegisterTick_IPv6 = 0;
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c->NextGetMyIpTick_IPv4 = 0;
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c->NextGetMyIpTick_IPv6 = 0;
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last_ip_hash = ip_hash;
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last_time_ip_changed = true;
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ip_changed = true;
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Debug("DDNS Internet Condition Changed.\n");
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}
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}
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else
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{
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last_time_ip_changed = false;
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}
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if ((n++) >= 1)
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{
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// Self IPv4 address acquisition
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if (c->NextGetMyIpTick_IPv4 == 0 || now >= c->NextGetMyIpTick_IPv4)
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{
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UINT next_interval;
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char ip[MAX_SIZE];
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Zero(ip, sizeof(ip));
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c->Err_IPv4_GetMyIp = DCGetMyIp(c, false, ip, sizeof(ip), NULL);
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if (c->Err_IPv4_GetMyIp == ERR_NO_ERROR)
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{
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if (StrCmpi(c->LastMyIPv4, ip) != 0)
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{
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ip_changed = true;
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StrCpy(c->LastMyIPv4, sizeof(c->LastMyIPv4), ip);
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}
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next_interval = GenRandInterval(DDNS_GETMYIP_INTERVAL_OK_MIN, DDNS_GETMYIP_INTERVAL_OK_MAX);
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}
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else
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{
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if (IsEmptyStr(c->LastMyIPv4) == false)
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{
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ip_changed = true;
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}
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Zero(c->LastMyIPv4, sizeof(c->LastMyIPv4));
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next_interval = GenRandInterval(DDNS_GETMYIP_INTERVAL_NG_MIN, DDNS_GETMYIP_INTERVAL_NG_MAX);
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}
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c->NextGetMyIpTick_IPv4 = Tick64() + (UINT64)next_interval;
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AddInterrupt(interrput, c->NextGetMyIpTick_IPv4);
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}
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// Self IPv6 address acquisition
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if (c->NextGetMyIpTick_IPv6 == 0 || now >= c->NextGetMyIpTick_IPv6)
|
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{
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UINT next_interval;
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char ip[MAX_SIZE];
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Zero(ip, sizeof(ip));
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c->Err_IPv6_GetMyIp = DCGetMyIp(c, true, ip, sizeof(ip), NULL);
|
||||
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if (c->Err_IPv6_GetMyIp == ERR_NO_ERROR)
|
||||
{
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||||
if (StrCmpi(c->LastMyIPv6, ip) != 0)
|
||||
{
|
||||
ip_changed = true;
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StrCpy(c->LastMyIPv6, sizeof(c->LastMyIPv6), ip);
|
||||
}
|
||||
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||||
next_interval = GenRandInterval(DDNS_GETMYIP_INTERVAL_OK_MIN, DDNS_GETMYIP_INTERVAL_OK_MAX);
|
||||
}
|
||||
else
|
||||
{
|
||||
if (IsEmptyStr(c->LastMyIPv6) == false)
|
||||
{
|
||||
ip_changed = true;
|
||||
}
|
||||
|
||||
Zero(c->LastMyIPv6, sizeof(c->LastMyIPv6));
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||||
next_interval = GenRandInterval(DDNS_GETMYIP_INTERVAL_NG_MIN, DDNS_GETMYIP_INTERVAL_NG_MAX);
|
||||
}
|
||||
|
||||
c->NextGetMyIpTick_IPv6 = Tick64() + (UINT64)next_interval;
|
||||
|
||||
AddInterrupt(interrput, c->NextGetMyIpTick_IPv6);
|
||||
}
|
||||
}
|
||||
|
||||
if (ip_changed)
|
||||
{
|
||||
c->NextRegisterTick_IPv4 = 0;
|
||||
c->NextRegisterTick_IPv6 = 0;
|
||||
}
|
||||
|
||||
// IPv4 host registration
|
||||
if (c->NextRegisterTick_IPv4 == 0 || now >= c->NextRegisterTick_IPv4)
|
||||
{
|
||||
UINT next_interval;
|
||||
|
||||
c->Err_IPv4 = DCRegister(c, false, NULL, NULL);
|
||||
|
||||
if (c->Err_IPv4 == ERR_NO_ERROR)
|
||||
{
|
||||
next_interval = GenRandInterval(DDNS_REGISTER_INTERVAL_OK_MIN, DDNS_REGISTER_INTERVAL_OK_MAX);
|
||||
}
|
||||
else
|
||||
{
|
||||
next_interval = GenRandInterval(DDNS_REGISTER_INTERVAL_NG_MIN, DDNS_REGISTER_INTERVAL_NG_MAX);
|
||||
}
|
||||
//next_interval = 0;
|
||||
|
||||
c->NextRegisterTick_IPv4 = Tick64() + (UINT64)next_interval;
|
||||
|
||||
if (true)
|
||||
{
|
||||
DDNS_CLIENT_STATUS st;
|
||||
|
||||
DCGetStatus(c, &st);
|
||||
|
||||
SiApplyAzureConfig(c->Cedar->Server, &st);
|
||||
}
|
||||
|
||||
AddInterrupt(interrput, c->NextRegisterTick_IPv4);
|
||||
}
|
||||
|
||||
if (c->Halt)
|
||||
{
|
||||
break;
|
||||
}
|
||||
|
||||
// IPv6 host registration
|
||||
if (c->NextRegisterTick_IPv6 == 0 || now >= c->NextRegisterTick_IPv6)
|
||||
{
|
||||
UINT next_interval;
|
||||
|
||||
c->Err_IPv6 = DCRegister(c, true, NULL, NULL);
|
||||
|
||||
if (c->Err_IPv6 == ERR_NO_ERROR)
|
||||
{
|
||||
next_interval = GenRandInterval(DDNS_REGISTER_INTERVAL_OK_MIN, DDNS_REGISTER_INTERVAL_OK_MAX);
|
||||
}
|
||||
else
|
||||
{
|
||||
next_interval = GenRandInterval(DDNS_REGISTER_INTERVAL_NG_MIN, DDNS_REGISTER_INTERVAL_NG_MAX);
|
||||
}
|
||||
|
||||
c->NextRegisterTick_IPv6 = Tick64() + (UINT64)next_interval;
|
||||
|
||||
if (true)
|
||||
{
|
||||
DDNS_CLIENT_STATUS st;
|
||||
|
||||
DCGetStatus(c, &st);
|
||||
|
||||
SiApplyAzureConfig(c->Cedar->Server, &st);
|
||||
}
|
||||
|
||||
AddInterrupt(interrput, c->NextRegisterTick_IPv6);
|
||||
}
|
||||
|
||||
interval = GetNextIntervalForInterrupt(interrput);
|
||||
interval = MIN(interval, 1234);
|
||||
|
||||
if (n == 1)
|
||||
{
|
||||
interval = MIN(interval, 0);
|
||||
}
|
||||
|
||||
if (c->Halt)
|
||||
{
|
||||
break;
|
||||
}
|
||||
|
||||
if (c->KeyChanged)
|
||||
{
|
||||
c->KeyChanged = false;
|
||||
c->NextRegisterTick_IPv4 = c->NextRegisterTick_IPv6 = 0;
|
||||
|
||||
interval = 0;
|
||||
}
|
||||
|
||||
if (last_time_ip_changed)
|
||||
{
|
||||
if (c->Cedar->Server != NULL && c->Cedar->Server->AzureClient != NULL)
|
||||
{
|
||||
c->Cedar->Server->AzureClient->IpStatusRevision++;
|
||||
}
|
||||
}
|
||||
|
||||
Wait(c->Event, interval);
|
||||
}
|
||||
|
||||
FreeRouteChange(route_change_poller);
|
||||
FreeInterruptManager(interrput);
|
||||
}
|
||||
|
||||
// Command to update immediately
|
||||
void DCUpdateNow(DDNS_CLIENT *c)
|
||||
{
|
||||
// Validate arguments
|
||||
if (c == NULL)
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
c->NextRegisterTick_IPv4 = c->NextRegisterTick_IPv6 = 0;
|
||||
|
||||
Set(c->Event);
|
||||
}
|
||||
|
||||
// Execution of registration
|
||||
UINT DCRegister(DDNS_CLIENT *c, bool ipv6, DDNS_REGISTER_PARAM *p, char *replace_v6)
|
||||
{
|
||||
char *url;
|
||||
char url2[MAX_SIZE];
|
||||
char url3[MAX_SIZE];
|
||||
PACK *req, *ret;
|
||||
char key_str[MAX_SIZE];
|
||||
UCHAR machine_key[SHA1_SIZE];
|
||||
char machine_key_str[MAX_SIZE];
|
||||
char machine_name[MAX_SIZE];
|
||||
BUF *cert_hash;
|
||||
UINT err = ERR_INTERNAL_ERROR;
|
||||
UCHAR key_hash[SHA1_SIZE];
|
||||
char key_hash_str[MAX_SIZE];
|
||||
bool use_azure = false;
|
||||
char current_azure_ip[MAX_SIZE];
|
||||
INTERNET_SETTING t;
|
||||
UINT build = 0;
|
||||
bool use_https = false;
|
||||
bool use_vgs = false;
|
||||
// Validate arguments
|
||||
if (c == NULL)
|
||||
{
|
||||
return ERR_INTERNAL_ERROR;
|
||||
}
|
||||
|
||||
Zero(current_azure_ip, sizeof(current_azure_ip));
|
||||
|
||||
GetCurrentMachineIpProcessHash(machine_key);
|
||||
BinToStr(machine_key_str, sizeof(machine_key_str), machine_key, sizeof(machine_key));
|
||||
|
||||
GetMachineHostName(machine_name, sizeof(machine_name));
|
||||
StrLower(machine_name);
|
||||
|
||||
if (ipv6 == false)
|
||||
{
|
||||
url = DDNS_URL_V4_GLOBAL;
|
||||
|
||||
if (IsUseAlternativeHostname())
|
||||
{
|
||||
url = DDNS_URL_V4_ALT;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
url = DDNS_URL_V6_GLOBAL;
|
||||
|
||||
if (IsUseAlternativeHostname())
|
||||
{
|
||||
url = DDNS_URL_V6_ALT;
|
||||
}
|
||||
|
||||
if (replace_v6)
|
||||
{
|
||||
url = replace_v6;
|
||||
}
|
||||
}
|
||||
|
||||
Zero(&t, sizeof(t));
|
||||
if (ipv6 == false)
|
||||
{
|
||||
// Proxy Setting
|
||||
Copy(&t, &c->InternetSetting, sizeof(INTERNET_SETTING));
|
||||
}
|
||||
|
||||
if (ipv6 == false)
|
||||
{
|
||||
// Get the current status of the VPN Azure Client
|
||||
if (c->Cedar->Server != NULL)
|
||||
{
|
||||
AZURE_CLIENT *ac = c->Cedar->Server->AzureClient;
|
||||
|
||||
if (ac != NULL)
|
||||
{
|
||||
use_azure = SiIsAzureEnabled(c->Cedar->Server);
|
||||
|
||||
if (use_azure)
|
||||
{
|
||||
Lock(ac->Lock);
|
||||
{
|
||||
StrCpy(current_azure_ip, sizeof(current_azure_ip), ac->ConnectingAzureIp);
|
||||
}
|
||||
Unlock(ac->Lock);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
req = NewPack();
|
||||
BinToStr(key_str, sizeof(key_str), c->Key, sizeof(c->Key));
|
||||
StrUpper(key_str);
|
||||
PackAddStr(req, "key", key_str);
|
||||
|
||||
// Build Number
|
||||
build = c->Cedar->Build;
|
||||
|
||||
|
||||
PackAddInt(req, "build", build);
|
||||
PackAddInt(req, "osinfo", GetOsInfo()->OsType);
|
||||
PackAddInt(req, "is_64bit", Is64());
|
||||
#ifdef OS_WIN32
|
||||
PackAddInt(req, "is_windows_64bit", MsIs64BitWindows());
|
||||
#endif // OS_WIN32
|
||||
PackAddBool(req, "is_softether", true);
|
||||
PackAddBool(req, "is_packetix", false);
|
||||
PackAddStr(req, "machine_key", machine_key_str);
|
||||
PackAddStr(req, "machine_name", machine_name);
|
||||
PackAddInt(req, "lasterror_ipv4", c->Err_IPv4_GetMyIp);
|
||||
PackAddInt(req, "lasterror_ipv6", c->Err_IPv6_GetMyIp);
|
||||
PackAddBool(req, "use_azure", use_azure);
|
||||
PackAddStr(req, "product_str", CEDAR_PRODUCT_STR);
|
||||
PackAddInt(req, "ddns_protocol_version", DDNS_VERSION);
|
||||
|
||||
|
||||
if (use_azure)
|
||||
{
|
||||
Debug("current_azure_ip = %s\n", current_azure_ip);
|
||||
PackAddStr(req, "current_azure_ip", current_azure_ip);
|
||||
}
|
||||
|
||||
HashSha1(key_hash, key_str, StrLen(key_str));
|
||||
BinToStr(key_hash_str, sizeof(key_hash_str), key_hash, sizeof(key_hash));
|
||||
StrLower(key_hash_str);
|
||||
|
||||
if (p != NULL)
|
||||
{
|
||||
if (IsEmptyStr(p->NewHostname) == false)
|
||||
{
|
||||
PackAddStr(req, "new_hostname", p->NewHostname);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
|
||||
cert_hash = StrToBin(DDNS_CERT_HASH);
|
||||
|
||||
Format(url2, sizeof(url2), "%s?v=%I64u", url, Rand64());
|
||||
Format(url3, sizeof(url3), url2, key_hash_str[0], key_hash_str[1], key_hash_str[2], key_hash_str[3]);
|
||||
|
||||
if (use_https == false)
|
||||
{
|
||||
ReplaceStr(url3, sizeof(url3), url3, "https://", "http://");
|
||||
}
|
||||
|
||||
ReplaceStr(url3, sizeof(url3), url3, ".servers", ".open.servers");
|
||||
|
||||
Debug("WpcCall: %s\n", url3);
|
||||
ret = WpcCallEx(url3, &t, DDNS_CONNECT_TIMEOUT, DDNS_COMM_TIMEOUT, "register", req,
|
||||
NULL, NULL, ((cert_hash != NULL && cert_hash->Size == SHA1_SIZE) ? cert_hash->Buf : NULL), NULL, DDNS_RPC_MAX_RECV_SIZE);
|
||||
Debug("WpcCall Ret: %u\n", ret);
|
||||
|
||||
FreeBuf(cert_hash);
|
||||
|
||||
FreePack(req);
|
||||
|
||||
err = GetErrorFromPack(ret);
|
||||
|
||||
ExtractAndApplyDynList(ret);
|
||||
|
||||
// Status update
|
||||
Lock(c->Lock);
|
||||
{
|
||||
if (err == ERR_NO_ERROR)
|
||||
{
|
||||
char snat_t[MAX_SIZE];
|
||||
|
||||
// Current host name
|
||||
PackGetStr(ret, "current_hostname", c->CurrentHostName, sizeof(c->CurrentHostName));
|
||||
PackGetStr(ret, "current_fqdn", c->CurrentFqdn, sizeof(c->CurrentFqdn));
|
||||
PackGetStr(ret, "current_ipv4", c->CurrentIPv4, sizeof(c->CurrentIPv4));
|
||||
PackGetStr(ret, "current_ipv6", c->CurrentIPv6, sizeof(c->CurrentIPv6));
|
||||
PackGetStr(ret, "dns_suffix", c->DnsSuffix, sizeof(c->DnsSuffix));
|
||||
|
||||
// SecureNAT connectivity check parameters
|
||||
Zero(snat_t, sizeof(snat_t));
|
||||
PackGetStr(ret, "snat_t", snat_t, sizeof(snat_t));
|
||||
NnSetSecureNatTargetHostname(snat_t);
|
||||
|
||||
if (ipv6 == false)
|
||||
{
|
||||
char cert_hash[MAX_SIZE];
|
||||
|
||||
PackGetStr(ret, "current_azure_ip", c->CurrentAzureIp, sizeof(c->CurrentAzureIp));
|
||||
c->CurrentAzureTimestamp = PackGetInt64(ret, "current_azure_timestamp");
|
||||
PackGetStr(ret, "current_azure_signature", c->CurrentAzureSignature, sizeof(c->CurrentAzureSignature));
|
||||
|
||||
Zero(cert_hash, sizeof(cert_hash));
|
||||
PackGetStr(ret, "azure_cert_hash", cert_hash, sizeof(cert_hash));
|
||||
|
||||
if (IsEmptyStr(cert_hash) == false)
|
||||
{
|
||||
StrCpy(c->AzureCertHash, sizeof(c->AzureCertHash), cert_hash);
|
||||
}
|
||||
}
|
||||
|
||||
StrCpy(c->Cedar->CurrentDDnsFqdn, sizeof(c->Cedar->CurrentDDnsFqdn), c->CurrentFqdn);
|
||||
|
||||
Debug("current_hostname=%s, current_fqdn=%s, current_ipv4=%s, current_ipv6=%s, current_azure_ip=%s, CurrentAzureTimestamp=%I64u, CurrentAzureSignature=%s, CertHash=%s\n",
|
||||
c->CurrentHostName, c->CurrentFqdn,
|
||||
c->CurrentIPv4, c->CurrentIPv6,
|
||||
c->CurrentAzureIp, c->CurrentAzureTimestamp, c->CurrentAzureSignature, c->AzureCertHash);
|
||||
}
|
||||
}
|
||||
Unlock(c->Lock);
|
||||
|
||||
if (IsEmptyStr(c->CurrentFqdn) == false)
|
||||
{
|
||||
SetCurrentDDnsFqdn(c->CurrentFqdn);
|
||||
}
|
||||
|
||||
|
||||
FreePack(ret);
|
||||
|
||||
UniDebug(L"DCRegister Error: %s\n", _E(err));
|
||||
|
||||
if (err == ERR_DUPLICATE_DDNS_KEY)
|
||||
{
|
||||
// Key duplication
|
||||
DCGenNewKey(c->Key);
|
||||
c->KeyChanged = true;
|
||||
}
|
||||
|
||||
if (err == ERR_DISCONNECTED)
|
||||
{
|
||||
err = ERR_DDNS_DISCONNECTED;
|
||||
}
|
||||
|
||||
if (IsUseAlternativeHostname() == false)
|
||||
{
|
||||
if (err == ERR_CONNECT_FAILED)
|
||||
{
|
||||
if (ipv6 && replace_v6 == NULL)
|
||||
{
|
||||
UINT type = DetectFletsType();
|
||||
|
||||
if (type & FLETS_DETECT_TYPE_EAST_BFLETS_PRIVATE && err != ERR_NO_ERROR)
|
||||
{
|
||||
err = DCRegister(c, ipv6, p, DDNS_REPLACE_URL_FOR_EAST_BFLETS);
|
||||
}
|
||||
|
||||
if (type & FLETS_DETECT_TYPE_EAST_NGN_PRIVATE && err != ERR_NO_ERROR)
|
||||
{
|
||||
err = DCRegister(c, ipv6, p, DDNS_REPLACE_URL_FOR_EAST_NGN);
|
||||
}
|
||||
|
||||
if (type & FLETS_DETECT_TYPE_WEST_NGN_PRIVATE && err != ERR_NO_ERROR)
|
||||
{
|
||||
err = DCRegister(c, ipv6, p, DDNS_REPLACE_URL_FOR_WEST_NGN);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return err;
|
||||
}
|
||||
|
||||
// Get the self IP address
|
||||
UINT DCGetMyIp(DDNS_CLIENT *c, bool ipv6, char *dst, UINT dst_size, char *replace_v6)
|
||||
{
|
||||
UINT ret = ERR_INTERNAL_ERROR;
|
||||
|
||||
ret = DCGetMyIpMain(c, ipv6, dst, dst_size, false, replace_v6);
|
||||
|
||||
|
||||
if (ret == ERR_NO_ERROR)
|
||||
{
|
||||
IP ip;
|
||||
|
||||
if (StrToIP(&ip, dst))
|
||||
{
|
||||
if (ipv6 == false && IsIP4(&ip))
|
||||
{
|
||||
SetCurrentGlobalIP(&ip, false);
|
||||
}
|
||||
else if (ipv6 && IsIP6(&ip))
|
||||
{
|
||||
SetCurrentGlobalIP(&ip, true);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
UINT DCGetMyIpMain(DDNS_CLIENT *c, bool ipv6, char *dst, UINT dst_size, bool use_ssl, char *replace_v6)
|
||||
{
|
||||
char *url;
|
||||
char url2[MAX_SIZE];
|
||||
UINT ret = ERR_INTERNAL_ERROR;
|
||||
URL_DATA data;
|
||||
BUF *recv;
|
||||
BUF *cert_hash;
|
||||
// Validate arguments
|
||||
if (dst == NULL || c == NULL)
|
||||
{
|
||||
return ERR_INTERNAL_ERROR;
|
||||
}
|
||||
|
||||
if (ipv6 == false)
|
||||
{
|
||||
url = DDNS_URL2_V4_GLOBAL;
|
||||
|
||||
if (IsUseAlternativeHostname())
|
||||
{
|
||||
url = DDNS_URL2_V4_ALT;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
url = DDNS_URL2_V6_GLOBAL;
|
||||
|
||||
if (IsUseAlternativeHostname())
|
||||
{
|
||||
url = DDNS_URL2_V6_ALT;
|
||||
}
|
||||
|
||||
if (replace_v6)
|
||||
{
|
||||
url = replace_v6;
|
||||
}
|
||||
}
|
||||
|
||||
Format(url2, sizeof(url2), "%s?v=%I64u", url, Rand64());
|
||||
|
||||
if (use_ssl)
|
||||
{
|
||||
ReplaceStr(url2, sizeof(url2), url2, "http://", "https://");
|
||||
}
|
||||
|
||||
if (ParseUrl(&data, url2, false, NULL) == false)
|
||||
{
|
||||
return ERR_INTERNAL_ERROR;
|
||||
}
|
||||
|
||||
cert_hash = StrToBin(DDNS_CERT_HASH);
|
||||
|
||||
recv = HttpRequest(&data, (ipv6 ? NULL : &c->InternetSetting), DDNS_CONNECT_TIMEOUT, DDNS_COMM_TIMEOUT, &ret, false, NULL, NULL,
|
||||
NULL, ((cert_hash != NULL && cert_hash->Size == SHA1_SIZE) ? cert_hash->Buf : NULL));
|
||||
|
||||
FreeBuf(cert_hash);
|
||||
|
||||
if (recv != NULL)
|
||||
{
|
||||
char *str = ZeroMalloc(recv->Size + 1);
|
||||
Copy(str, recv->Buf, recv->Size);
|
||||
|
||||
if (StartWith(str, "IP=") == false)
|
||||
{
|
||||
ret = ERR_PROTOCOL_ERROR;
|
||||
}
|
||||
else
|
||||
{
|
||||
StrCpy(dst, dst_size, str + 3);
|
||||
ret = ERR_NO_ERROR;
|
||||
}
|
||||
|
||||
Free(str);
|
||||
FreeBuf(recv);
|
||||
}
|
||||
|
||||
if (IsUseAlternativeHostname() == false)
|
||||
{
|
||||
if (ret == ERR_CONNECT_FAILED)
|
||||
{
|
||||
if (ipv6 && replace_v6 == NULL && use_ssl == false)
|
||||
{
|
||||
UINT type = DetectFletsType();
|
||||
|
||||
if (type & FLETS_DETECT_TYPE_EAST_BFLETS_PRIVATE && ret != ERR_NO_ERROR)
|
||||
{
|
||||
ret = DCGetMyIpMain(c, ipv6, dst, dst_size, use_ssl, DDNS_REPLACE_URL2_FOR_EAST_BFLETS);
|
||||
}
|
||||
|
||||
if (type & FLETS_DETECT_TYPE_EAST_NGN_PRIVATE && ret != ERR_NO_ERROR)
|
||||
{
|
||||
ret = DCGetMyIpMain(c, ipv6, dst, dst_size, use_ssl, DDNS_REPLACE_URL2_FOR_EAST_NGN);
|
||||
}
|
||||
|
||||
if (type & FLETS_DETECT_TYPE_WEST_NGN_PRIVATE && ret != ERR_NO_ERROR)
|
||||
{
|
||||
ret = DCGetMyIpMain(c, ipv6, dst, dst_size, use_ssl, DDNS_REPLACE_URL2_FOR_WEST_NGN);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
// Creating a DDNS client
|
||||
DDNS_CLIENT *NewDDNSClient(CEDAR *cedar, UCHAR *key, INTERNET_SETTING *t)
|
||||
{
|
||||
DDNS_CLIENT *c;
|
||||
UCHAR key_hash[SHA1_SIZE];
|
||||
// Validate arguments
|
||||
if (cedar == NULL)
|
||||
{
|
||||
return NULL;
|
||||
}
|
||||
|
||||
c = ZeroMalloc(sizeof(DDNS_CLIENT));
|
||||
c->Cedar = cedar;
|
||||
AddRef(c->Cedar->ref);
|
||||
|
||||
c->Err_IPv4 = c->Err_IPv6 = ERR_TRYING_TO_CONNECT;
|
||||
|
||||
if (key == NULL)
|
||||
{
|
||||
// Create a new key
|
||||
DCGenNewKey(c->Key);
|
||||
}
|
||||
else
|
||||
{
|
||||
// Set the key
|
||||
Copy(c->Key, key, SHA1_SIZE);
|
||||
}
|
||||
|
||||
HashSha1(key_hash, c->Key, sizeof(c->Key));
|
||||
|
||||
|
||||
if (t != NULL)
|
||||
{
|
||||
Copy(&c->InternetSetting, t, sizeof(INTERNET_SETTING));
|
||||
}
|
||||
|
||||
c->Lock = NewLock();
|
||||
|
||||
// Thread creation
|
||||
c->Event = NewEvent();
|
||||
c->Thread = NewThread(DCThread, c);
|
||||
|
||||
return c;
|
||||
}
|
||||
|
||||
// Release of DDNS client
|
||||
void FreeDDNSClient(DDNS_CLIENT *c)
|
||||
{
|
||||
// Validate arguments
|
||||
if (c == NULL)
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
// Stop the thread
|
||||
c->Halt = true;
|
||||
Set(c->Event);
|
||||
|
||||
WaitThread(c->Thread, INFINITE);
|
||||
ReleaseThread(c->Thread);
|
||||
|
||||
ReleaseEvent(c->Event);
|
||||
|
||||
ReleaseCedar(c->Cedar);
|
||||
DeleteLock(c->Lock);
|
||||
|
||||
Free(c);
|
||||
}
|
||||
|
||||
// Create a new key
|
||||
void DCGenNewKey(UCHAR *key)
|
||||
{
|
||||
BUF *b;
|
||||
UINT64 tick;
|
||||
UCHAR hash[SHA1_SIZE];
|
||||
UCHAR rand[SHA1_SIZE];
|
||||
UINT i;
|
||||
// Validate arguments
|
||||
if (key == NULL)
|
||||
{
|
||||
return;
|
||||
}
|
||||
|
||||
b = NewBuf();
|
||||
|
||||
Rand(rand, sizeof(rand));
|
||||
WriteBuf(b, rand, sizeof(rand));
|
||||
|
||||
tick = TickHighres64();
|
||||
WriteBufInt64(b, tick);
|
||||
|
||||
tick = Tick64();
|
||||
WriteBufInt64(b, tick);
|
||||
|
||||
tick = SystemTime64();
|
||||
WriteBufInt64(b, tick);
|
||||
|
||||
GetCurrentMachineIpProcessHash(hash);
|
||||
WriteBuf(b, hash, sizeof(hash));
|
||||
|
||||
HashSha1(key, b->Buf, b->Size);
|
||||
Rand(rand, sizeof(rand));
|
||||
|
||||
for (i = 0;i < SHA1_SIZE;i++)
|
||||
{
|
||||
key[i] = key[i] ^ rand[i];
|
||||
}
|
||||
|
||||
FreeBuf(b);
|
||||
}
|
||||
|
||||
|
||||
|
||||
// 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/
|
Reference in New Issue
Block a user