mirror of
https://github.com/SoftEtherVPN/SoftEtherVPN.git
synced 2024-11-07 18:20:41 +03:00
251 lines
12 KiB
C
251 lines
12 KiB
C
// SoftEther VPN Source Code - Developer Edition Master Branch
|
|
// Cedar Communication Module
|
|
//
|
|
// SoftEther VPN Server, Client and Bridge are free software under GPLv2.
|
|
//
|
|
// Copyright (c) Daiyuu Nobori.
|
|
// Copyright (c) SoftEther VPN Project, University of Tsukuba, Japan.
|
|
// Copyright (c) SoftEther Corporation.
|
|
//
|
|
// All Rights Reserved.
|
|
//
|
|
// http://www.softether.org/
|
|
//
|
|
// Author: Daiyuu Nobori, Ph.D.
|
|
// 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 THIS SOFTWARE IN ANOTHER COUNTRY UNLESS
|
|
// YOU HAVE A CONFIRMATION THAT THIS SOFTWARE DOES NOT VIOLATE ANY
|
|
// CRIMINAL LAWS OR CIVIL RIGHTS IN THAT PARTICULAR COUNTRY. USING THIS
|
|
// SOFTWARE IN OTHER COUNTRIES IS COMPLETELY AT YOUR OWN RISK. THE
|
|
// SOFTETHER VPN PROJECT HAS DEVELOPED AND DISTRIBUTED THIS SOFTWARE TO
|
|
// COMPLY ONLY WITH THE JAPANESE LAWS AND EXISTING CIVIL RIGHTS INCLUDING
|
|
// PATENTS WHICH ARE SUBJECTS APPLY IN JAPAN. OTHER COUNTRIES' LAWS OR
|
|
// CIVIL RIGHTS ARE NONE OF OUR CONCERNS NOR RESPONSIBILITIES. WE HAVE
|
|
// NEVER INVESTIGATED ANY CRIMINAL REGULATIONS, CIVIL LAWS OR
|
|
// INTELLECTUAL PROPERTY RIGHTS INCLUDING PATENTS IN ANY OF OTHER 200+
|
|
// COUNTRIES AND TERRITORIES. BY NATURE, THERE ARE 200+ REGIONS IN THE
|
|
// WORLD, WITH DIFFERENT LAWS. IT IS IMPOSSIBLE TO VERIFY EVERY
|
|
// COUNTRIES' LAWS, REGULATIONS AND CIVIL RIGHTS TO MAKE THE SOFTWARE
|
|
// COMPLY WITH ALL COUNTRIES' LAWS BY THE PROJECT. EVEN IF YOU WILL BE
|
|
// SUED BY A PRIVATE ENTITY OR BE DAMAGED BY A PUBLIC SERVANT IN YOUR
|
|
// COUNTRY, THE DEVELOPERS OF THIS SOFTWARE WILL NEVER BE LIABLE TO
|
|
// RECOVER OR COMPENSATE SUCH DAMAGES, CRIMINAL OR CIVIL
|
|
// RESPONSIBILITIES. NOTE THAT THIS LINE IS NOT LICENSE RESTRICTION BUT
|
|
// JUST A STATEMENT FOR WARNING AND DISCLAIMER.
|
|
//
|
|
//
|
|
// SOURCE CODE CONTRIBUTION
|
|
// ------------------------
|
|
//
|
|
// Your contribution to SoftEther VPN Project is much appreciated.
|
|
// Please send patches to us through GitHub.
|
|
// Read the SoftEther VPN Patch Acceptance Policy in advance:
|
|
// http://www.softether.org/5-download/src/9.patch
|
|
//
|
|
//
|
|
// 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.
|
|
//
|
|
//
|
|
// NO MEMORY OR RESOURCE LEAKS
|
|
// ---------------------------
|
|
//
|
|
// The memory-leaks and resource-leaks verification under the stress
|
|
// test has been passed before release this source code.
|
|
|
|
|
|
// DDNS.h
|
|
// Header of DDNS.c
|
|
|
|
#ifndef DDNS_H
|
|
#define DDNS_H
|
|
|
|
// Certificate hash
|
|
#define DDNS_CERT_HASH "78BF0499A99396907C9F49DD13571C81FE26E6F5" \
|
|
"439BAFA75A6EE5671FC9F9A02D34FF29881761A0" \
|
|
"EFAC5FA0CDD14E0F864EED58A73C35D7E33B62F3" \
|
|
"74DF99D4B1B5F0488A388B50D347D26013DC67A5" \
|
|
"6EBB39AFCA8C900635CFC11218CF293A612457E4"
|
|
|
|
#define DDNS_SNI_VER_STRING "DDNS"
|
|
|
|
|
|
// Destination URL
|
|
#define DDNS_URL_V4_GLOBAL "https://x%c.x%c.dev.servers.ddns.softether-network.net/ddns/ddns.aspx"
|
|
#define DDNS_URL_V6_GLOBAL "https://x%c.x%c.dev.servers-v6.ddns.softether-network.net/ddns/ddns.aspx"
|
|
#define DDNS_URL2_V4_GLOBAL "http://get-my-ip.ddns.softether-network.net/ddns/getmyip.ashx"
|
|
#define DDNS_URL2_V6_GLOBAL "http://get-my-ip-v6.ddns.softether-network.net/ddns/getmyip.ashx"
|
|
|
|
#define DDNS_REPLACE_URL_FOR_EAST_BFLETS "https://senet-flets.v6.softether.co.jp/ddns/ddns.aspx"
|
|
#define DDNS_REPLACE_URL_FOR_EAST_NGN "https://senet.aoi.flets-east.jp/ddns/ddns.aspx"
|
|
#define DDNS_REPLACE_URL_FOR_WEST_NGN "https://senet.p-ns.flets-west.jp/ddns/ddns.aspx"
|
|
|
|
#define DDNS_REPLACE_URL2_FOR_EAST_BFLETS "http://senet-flets.v6.softether.co.jp/ddns/getmyip.ashx"
|
|
#define DDNS_REPLACE_URL2_FOR_EAST_NGN "http://senet.aoi.flets-east.jp/ddns/getmyip.ashx"
|
|
#define DDNS_REPLACE_URL2_FOR_WEST_NGN "http://senet.p-ns.flets-west.jp/ddns/getmyip.ashx"
|
|
|
|
// For China: Free version
|
|
#define DDNS_URL_V4_ALT "https://x%c.x%c.dev.servers.ddns.uxcom.jp/ddns/ddns.aspx"
|
|
#define DDNS_URL_V6_ALT "https://x%c.x%c.dev.servers-v6.ddns.uxcom.jp/ddns/ddns.aspx"
|
|
#define DDNS_URL2_V4_ALT "http://get-my-ip.ddns.uxcom.jp/ddns/getmyip.ashx"
|
|
#define DDNS_URL2_V6_ALT "http://get-my-ip-v6.ddns.uxcom.jp/ddns/getmyip.ashx"
|
|
|
|
#define DDNS_RPC_MAX_RECV_SIZE DYN32(DDNS_RPC_MAX_RECV_SIZE, (128 * 1024 * 1024))
|
|
|
|
// Connection Timeout
|
|
#define DDNS_CONNECT_TIMEOUT DYN32(DDNS_CONNECT_TIMEOUT, (15 * 1000))
|
|
|
|
// Communication time-out
|
|
#define DDNS_COMM_TIMEOUT DYN32(DDNS_COMM_TIMEOUT, (60 * 1000))
|
|
|
|
// Maximum length of the host name
|
|
#define DDNS_MAX_HOSTNAME 31
|
|
|
|
// DDNS Version
|
|
#define DDNS_VERSION 1
|
|
|
|
// Period until the next registration in case of success
|
|
#define DDNS_REGISTER_INTERVAL_OK_MIN DYN32(DDNS_REGISTER_INTERVAL_OK_MIN, (1 * 60 * 60 * 1000))
|
|
#define DDNS_REGISTER_INTERVAL_OK_MAX DYN32(DDNS_REGISTER_INTERVAL_OK_MAX, (2 * 60 * 60 * 1000))
|
|
|
|
// Period until the next registration in case of failure
|
|
#define DDNS_REGISTER_INTERVAL_NG_MIN DYN32(DDNS_REGISTER_INTERVAL_NG_MIN, (1 * 60 * 1000))
|
|
#define DDNS_REGISTER_INTERVAL_NG_MAX DYN32(DDNS_REGISTER_INTERVAL_NG_MAX, (5 * 60 * 1000))
|
|
|
|
// The self IP address acquisition interval (If last trial succeeded)
|
|
#define DDNS_GETMYIP_INTERVAL_OK_MIN DYN32(DDNS_GETMYIP_INTERVAL_OK_MIN, (10 * 60 * 1000))
|
|
#define DDNS_GETMYIP_INTERVAL_OK_MAX DYN32(DDNS_GETMYIP_INTERVAL_OK_MAX, (20 * 60 * 1000))
|
|
|
|
// The self IP address acquisition interval (If last trial failed)
|
|
#define DDNS_GETMYIP_INTERVAL_NG_MIN DYN32(DDNS_GETMYIP_INTERVAL_NG_MIN, (1 * 60 * 1000))
|
|
#define DDNS_GETMYIP_INTERVAL_NG_MAX DYN32(DDNS_GETMYIP_INTERVAL_NG_MAX, (5 * 60 * 1000))
|
|
|
|
// Time difference to communicate with the DDNS server after a predetermined time has elapsed since the VPN Azure is disconnected
|
|
#define DDNS_VPN_AZURE_CONNECT_ERROR_DDNS_RETRY_TIME_DIFF DYN32(DDNS_VPN_AZURE_CONNECT_ERROR_DDNS_RETRY_TIME_DIFF, (120 * 1000))
|
|
#define DDNS_VPN_AZURE_CONNECT_ERROR_DDNS_RETRY_TIME_DIFF_MAX DYN32(DDNS_VPN_AZURE_CONNECT_ERROR_DDNS_RETRY_TIME_DIFF_MAX, (10 * 60 * 1000))
|
|
|
|
// DDNS Client
|
|
struct DDNS_CLIENT
|
|
{
|
|
CEDAR *Cedar; // Cedar
|
|
THREAD *Thread; // Thread
|
|
UCHAR Key[SHA1_SIZE]; // Key
|
|
LOCK *Lock; // Lock
|
|
volatile bool Halt; // Halt flag
|
|
EVENT *Event; // Halt event
|
|
char CurrentHostName[DDNS_MAX_HOSTNAME + 1]; // Current host name
|
|
char CurrentFqdn[MAX_SIZE]; // Current FQDN
|
|
char DnsSuffix[MAX_SIZE]; // DNS suffix
|
|
char CurrentIPv4[MAX_SIZE]; // Current IPv4 address
|
|
char CurrentIPv6[MAX_SIZE]; // Current IPv6 address
|
|
UINT Err_IPv4, Err_IPv6; // Last error
|
|
UINT Err_IPv4_GetMyIp, Err_IPv6_GetMyIp; // Last error (obtaining self IP address)
|
|
bool KeyChanged; // Flag to indicate that the key has been changed
|
|
char LastMyIPv4[MAX_SIZE]; // Self IPv4 address that were acquired on last
|
|
char LastMyIPv6[MAX_SIZE]; // Self IPv6 address that were acquired on last
|
|
char CurrentAzureIp[MAX_SIZE]; // IP address of Azure Server to be used
|
|
UINT64 CurrentAzureTimestamp; // Time stamp to be presented to the Azure Server
|
|
char CurrentAzureSignature[MAX_SIZE]; // Signature to be presented to the Azure Server
|
|
char AzureCertHash[MAX_SIZE]; // Azure Server certificate hash
|
|
INTERNET_SETTING InternetSetting; // Internet connection settings
|
|
|
|
UINT64 NextRegisterTick_IPv4, NextRegisterTick_IPv6; // Next register time
|
|
UINT64 NextGetMyIpTick_IPv4, NextGetMyIpTick_IPv6; // Next self IP acquisition time
|
|
};
|
|
|
|
// DDNS Register Param
|
|
struct DDNS_REGISTER_PARAM
|
|
{
|
|
char NewHostname[DDNS_MAX_HOSTNAME + 1]; // Host name after the change
|
|
};
|
|
|
|
// The current status of the DDNS
|
|
struct DDNS_CLIENT_STATUS
|
|
{
|
|
UINT Err_IPv4, Err_IPv6; // Last error
|
|
char CurrentHostName[DDNS_MAX_HOSTNAME + 1]; // Current host name
|
|
char CurrentFqdn[MAX_SIZE]; // Current FQDN
|
|
char DnsSuffix[MAX_SIZE]; // DNS suffix
|
|
char CurrentIPv4[MAX_SIZE]; // Current IPv4 address
|
|
char CurrentIPv6[MAX_SIZE]; // Current IPv6 address
|
|
char CurrentAzureIp[MAX_SIZE]; // IP address of Azure Server to be used
|
|
UINT64 CurrentAzureTimestamp; // Time stamp to be presented to the Azure Server
|
|
char CurrentAzureSignature[MAX_SIZE]; // Signature to be presented to the Azure Server
|
|
char AzureCertHash[MAX_SIZE]; // Azure Server certificate hash
|
|
INTERNET_SETTING InternetSetting; // Internet settings
|
|
};
|
|
|
|
// Function prototype
|
|
DDNS_CLIENT *NewDDNSClient(CEDAR *cedar, UCHAR *key, INTERNET_SETTING *t);
|
|
void FreeDDNSClient(DDNS_CLIENT *c);
|
|
void DCGenNewKey(UCHAR *key);
|
|
void DCThread(THREAD *thread, void *param);
|
|
UINT DCRegister(DDNS_CLIENT *c, bool ipv6, DDNS_REGISTER_PARAM *p, char *replace_v6);
|
|
UINT DCGetMyIpMain(DDNS_CLIENT *c, bool ipv6, char *dst, UINT dst_size, bool use_ssl, char *replace_v6);
|
|
UINT DCGetMyIp(DDNS_CLIENT *c, bool ipv6, char *dst, UINT dst_size, char *replace_v6);
|
|
void DCUpdateNow(DDNS_CLIENT *c);
|
|
void DCGetStatus(DDNS_CLIENT *c, DDNS_CLIENT_STATUS *st);
|
|
UINT DCChangeHostName(DDNS_CLIENT *c, char *hostname);
|
|
void DCSetInternetSetting(DDNS_CLIENT *c, INTERNET_SETTING *t);
|
|
void DCGetInternetSetting(DDNS_CLIENT *c, INTERNET_SETTING *t);
|
|
|
|
|
|
|
|
#endif // DDNS_H
|
|
|
|
|