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SoftEtherVPN/src/Cedar/Cedar.h
Davide Beatrici 632e86d1e5 src: remove unused VGate project
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// 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.
// Cedar.h
// Header of Cedar.c
#ifndef CEDAR_H
#define CEDAR_H
//////////////////////////////////////////////////////////////////////
//
// Products related constants
//
//////////////////////////////////////////////////////////////////////
// Replace the function name
#ifdef VPN_SPEED
#define DecryptSecurePacket __dsp
#define CreateSecurePacket __csp
#define GetSecureRandomSize __gsrs
#endif // VPN_SPEED
#define bool UINT
#define BOOL UINT
// Version number
#define CEDAR_VER 501
// Build Number
#define CEDAR_BUILD 9657
// Beta number
//#define BETA_NUMBER 3
// RC or not
#define RELEASE_CANDIDATE
// Specify the name of the person in charge building
#ifndef BUILDER_NAME
#define BUILDER_NAME "yagi"
#endif // BUILDER_NAME
// Specify the location to build
#ifndef BUILD_PLACE
#define BUILD_PLACE "pc37"
#endif // BUILD_PLACE
// Specifies the build date
#define BUILD_DATE_Y 2018
#define BUILD_DATE_M 1
#define BUILD_DATE_D 14
#define BUILD_DATE_HO 0
#define BUILD_DATE_MI 36
#define BUILD_DATE_SE 20
// Tolerable time difference
#define ALLOW_TIMESTAMP_DIFF (UINT64)(3 * 24 * 60 * 60 * 1000)
// Configuration of communication related control switch
#define USE_DOS_ATTACK_DETECTION // Enable the DOS attack detection
//#define USE_SECURE_PACKET // Enable the scrambled packet
// Designate the IDS detection signatures
#define CEDAR_SIGNATURE_STR "SE-VPN4-PROTOCOL"
// Default RSA certificate name of the smart card
#define SECURE_DEFAULT_CERT_NAME "VPN_RSA_CERT"
// Default RSA private key name of the smart card
#define SECURE_DEFAULT_KEY_NAME "VPN_RSA_KEY"
// Hidden password string of 8 characters
#define HIDDEN_PASSWORD "********"
//////////////////////////////////////////////////////////////////////
//
// Definition of the maximum length of various string
//
//////////////////////////////////////////////////////////////////////
#define MAX_ACCOUNT_NAME_LEN 255 // Maximum account name length
#define MAX_USERNAME_LEN 255 // User name maximum length
#define MAX_PASSWORD_LEN 255 // Password name maximum length
#define MAX_PROXY_USERNAME_LEN 255 // Proxy user name maximum length
#define MAX_PROXY_PASSWORD_LEN 255 // Proxy Password maximum length
#define MAX_SERVER_STR_LEN 255 // Maximum length of server string
#define MAX_CLIENT_STR_LEN 255 // Maximum length of client string
#define MAX_HUBNAME_LEN 255 // Maximum length of HUB name
#define MAX_SESSION_NAME_LEN 255 // Session name maximum length
#define MAX_CONNECTION_NAME_LEN 255 // Maximum length of connection name
#define MAX_DEVICE_NAME_LEN 31 // Device name maximum length
#define MAX_DEVICE_NAME_LEN_9X 4 // Maximum length of Virtual LAN card name in Win9x
#define MAX_ACCESSLIST_NOTE_LEN 255 // Maximum length of the note of access list entry
#define MAX_SECURE_DEVICE_FILE_LEN 255 // Secure device file name maximum length
#define MAX_ADMIN_OPTION_NAME_LEN 63 // Management option name
#define MAX_REDIRECT_URL_LEN 255 // URL length to redirect
//////////////////////////////////////////////////////////////////////
//
// Server and session management related constants
//
//////////////////////////////////////////////////////////////////////
#define SERVER_MAX_SESSIONS 4096 // Maximum number of sessions that the server supports
#define SERVER_MAX_SESSIONS_FOR_CARRIER_EDITION 100000 // Maximum number of sessions that the server supports (Carrier Edition)
#define NAT_MAX_SESSIONS 4096 // Maximum number of sessions that are supported by NAT
#define NAT_MAX_SESSIONS_KERNEL 65536 // Maximum number of sessions that are supported by NAT (In the case of kernel-mode NAT)
#define MAX_HUBS 4096 // The maximum number of virtual HUB
#define MAX_HUBS_FOR_CARRIER_EDITION 100000 // The maximum number of virtual HUB (Carrier Edition)
#define MAX_ACCESSLISTS (4096 * 8) // Maximum number of access list entries
#define MAX_USERS 10000 // The maximum number of users
#define MAX_GROUPS 10000 // Maximum number of groups
#define MAX_MAC_TABLES VPN_GP(GP_MAX_MAC_TABLES, 65536) // Maximum number of MAC address table entries
#define MAX_IP_TABLES VPN_GP(GP_MAX_IP_TABLES, 65536) // Maximum number of IP address table entries
#define MAX_HUB_CERTS 4096 // Maximum number of Root CA that can be registered
#define MAX_HUB_CRLS 4096 // Maximum number of CRL that can be registered
#define MAX_HUB_ACS 4096 // Maximum number of AC that can be registered
#define MAX_HUB_LINKS VPN_GP(GP_MAX_HUB_LINKS, 1024) // Maximum number of Cascade that can be registered
#define MAX_HUB_ADMIN_OPTIONS 4096 // Maximum number of Virtual HUB management options that can be registered
#ifndef USE_STRATEGY_LOW_MEMORY
#define MEM_FIFO_REALLOC_MEM_SIZE VPN_GP(GP_MEM_FIFO_REALLOC_MEM_SIZE, (65536 * 10))
#define QUEUE_BUDGET VPN_GP(GP_QUEUE_BUDGET, 2048)
#define FIFO_BUDGET VPN_GP(GP_FIFO_BUDGET, 1600 * 1600 * 4)
#else // USE_STRATEGY_LOW_MEMORY
#define MEM_FIFO_REALLOC_MEM_SIZE VPN_GP(GP_MEM_FIFO_REALLOC_MEM_SIZE, (65536))
#define QUEUE_BUDGET VPN_GP(GP_QUEUE_BUDGET, 1024)
#define FIFO_BUDGET VPN_GP(GP_FIFO_BUDGET, 1000000)
#endif // USE_STRATEGY_LOW_MEMORY
#define MAX_PACKET_SIZE 1600 // Maximum packet size
#define UDP_BUF_SIZE (32 * 1024) // Aim of the UDP packet size
#ifndef USE_STRATEGY_LOW_MEMORY
#define MAX_SEND_SOCKET_QUEUE_SIZE VPN_GP(GP_MAX_SEND_SOCKET_QUEUE_SIZE, (1600 * 1600 * 1)) // Maximum transmit queue size
#define MIN_SEND_SOCKET_QUEUE_SIZE VPN_GP(GP_MIN_SEND_SOCKET_QUEUE_SIZE, (1600 * 200 * 1)) // Minimum transmit queue size
#define MAX_STORED_QUEUE_NUM VPN_GP(GP_MAX_STORED_QUEUE_NUM, 1024) // The number of queues that can be stored in each session
#define MAX_BUFFERING_PACKET_SIZE VPN_GP(GP_MAX_BUFFERING_PACKET_SIZE, (1600 * 1600)) // Maximum packet size can be buffered
#else // USE_STRATEGY_LOW_MEMORY
#define MAX_SEND_SOCKET_QUEUE_SIZE VPN_GP(GP_MAX_SEND_SOCKET_QUEUE_SIZE, (1600 * 200 * 1)) // Maximum transmit queue size
#define MIN_SEND_SOCKET_QUEUE_SIZE VPN_GP(GP_MIN_SEND_SOCKET_QUEUE_SIZE, (1600 * 50 * 1)) // Minimum transmit queue size
#define MAX_STORED_QUEUE_NUM VPN_GP(GP_MAX_STORED_QUEUE_NUM, 384) // The number of queues that can be stored in each session
#define MAX_BUFFERING_PACKET_SIZE VPN_GP(GP_MAX_BUFFERING_PACKET_SIZE, (1600 * 300 * 1)) // Maximum packet size can be buffered
#endif // USE_STRATEGY_LOW_MEMORY
#define MAX_SEND_SOCKET_QUEUE_NUM VPN_GP(GP_MAX_SEND_SOCKET_QUEUE_NUM, 128) // Maximum number of transmission queue items per processing
#define MAX_TCP_CONNECTION 32 // The maximum number of TCP connections
#define NUM_TCP_CONNECTION_FOR_UDP_RECOVERY 2 // Maximum number of connections when using UDP recovery
#define SELECT_TIME VPN_GP(GP_SELECT_TIME, 256)
#define SELECT_TIME_FOR_NAT VPN_GP(GP_SELECT_TIME_FOR_NAT, 30)
#define SELECT_TIME_FOR_DELAYED_PKT 1 // If there is a delayed packet
#define TIMEOUT_MIN (5 * 1000) // Minimum timeout in seconds
#define TIMEOUT_MAX (60 * 1000) // Maximum timeout in seconds
#define TIMEOUT_DEFAULT (30 * 1000) // Default number of seconds to timeout
#define CONNECTING_TIMEOUT (15 * 1000) // Timeout in seconds of being connected
#define CONNECTING_TIMEOUT_PROXY (4 * 1000) // Timeout in seconds of being connected (Proxy)
#define CONNECTING_POOLING_SPAN (3 * 1000) // Polling interval of connected
#define MIN_RETRY_INTERVAL (5 * 1000) // Minimum retry interval
#define MAX_RETRY_INTERVAL (300 * 1000) // Maximum retry interval
#define RETRY_INTERVAL_SPECIAL (60 * 1000) // Reconnection interval of a special case
#define MAX_ADDITIONAL_CONNECTION_FAILED_COUNTER 16 // Allowable number that can be serially failed to additional connection
#define ADDITIONAL_CONNECTION_COUNTER_RESET_INTERVAL (30 * 60 * 1000) // Reset period of additional connection failure counter
#define MAC_MIN_LIMIT_COUNT 3 // Minimum number of MAC addresses
#define IP_MIN_LIMIT_COUNT 4 // Number of IPv4 addresses minimum
#define IP_MIN_LIMIT_COUNT_V6 5 // Number of IPv6 addresses minimum
#define IP_LIMIT_WHEN_NO_ROUTING_V6 15 // Maximum number of IPv6 addresses when NoRouting policy is enabled
#define MAC_TABLE_EXCLUSIVE_TIME (13 * 1000) // Period that can occupy the MAC address
#define IP_TABLE_EXCLUSIVE_TIME (13 * 1000) // Period that can occupy the IP address
#define MAC_TABLE_EXPIRE_TIME VPN_GP(GP_MAC_TABLE_EXPIRE_TIME, (600 * 1000)) // MAC address table expiration time
#define IP_TABLE_EXPIRE_TIME VPN_GP(GP_IP_TABLE_EXPIRE_TIME, (60 * 1000)) // IP address table expiration time
#define IP_TABLE_EXPIRE_TIME_DHCP VPN_GP(GP_IP_TABLE_EXPIRE_TIME_DHCP, (5 * 60 * 1000)) // IP address table expiration time (In the case of DHCP)
#define HUB_ARP_SEND_INTERVAL VPN_GP(GP_HUB_ARP_SEND_INTERVAL, (5 * 1000)) // ARP packet transmission interval (alive check)
#define LIMITER_SAMPLING_SPAN 1000 // Sampling interval of the traffic limiting device
#define STORM_CHECK_SPAN VPN_GP(GP_STORM_CHECK_SPAN, 500) // Broadcast storm check interval
#define STORM_DISCARD_VALUE_START VPN_GP(GP_STORM_DISCARD_VALUE_START, 3) // Broadcast packet discard value start value
#define STORM_DISCARD_VALUE_END VPN_GP(GP_STORM_DISCARD_VALUE_END, 1024) // Broadcast packet discard value end value
#define KEEP_INTERVAL_MIN 5 // Packet transmission interval minimum value
#define KEEP_INTERVAL_DEFAULT 50 // Packet transmission interval default value
#define KEEP_INTERVAL_MAX 600 // Packet transmission interval maximum value
#define KEEP_TCP_TIMEOUT 1000 // TCP time-out value
#define TICKET_EXPIRES (60 * 1000) // Expiration date of ticket
#define SEND_KILL_NUM_X 256 // Number of 'X' characters to send the Kill
#define FARM_BASE_POINT 100000 // Reference value of the cluster score
#define FARM_DEFAULT_WEIGHT 100 // Standard performance ratio
#define DH_PARAM_BITS_DEFAULT 2048 // Bits of Diffie-Hellman Parameters
#define SE_UDP_SIGN "SE2P" // Not used (only old UDP mode)
// R-UDP service name
#define VPN_RUDP_SVC_NAME "SoftEther_VPN"
// Traffic information update interval
#define INCREMENT_TRAFFIC_INTERVAL (10 * 1000)
// State of the client session
#define CLIENT_STATUS_CONNECTING 0 // Connecting
#define CLIENT_STATUS_NEGOTIATION 1 // Negotiating
#define CLIENT_STATUS_AUTH 2 // During user authentication
#define CLIENT_STATUS_ESTABLISHED 3 // Connection complete
#define CLIENT_STATUS_RETRY 4 // Wait to retry
#define CLIENT_STATUS_IDLE 5 // Idle state
// Expiration date of the black list
#define BLACK_LIST_EXPIRES (30 * 10000)
// Number Blacklist entries
#define MAX_BLACK_LIST 4096
#define BLACK_LIST_CHECK_SPAN 1000
// Blocks to be transmitted at one during the file transfer
#define FTP_BLOCK_SIZE (640 * 1024)
// Syslog configuration
#define SYSLOG_NONE 0 // Do not use syslog
#define SYSLOG_SERVER_LOG 1 // Only server log
#define SYSLOG_SERVER_AND_HUB_SECURITY_LOG 2 // Server and Virtual HUB security log
#define SYSLOG_SERVER_AND_HUB_ALL_LOG 3 // Server, Virtual HUB security, and packet log
#define SYSLOG_PORT 514 // Syslog port number
#define SYSLOG_POLL_IP_INTERVAL (UINT64)(3600 * 1000) // Interval to examine the IP address
#define SYSLOG_POLL_IP_INTERVAL_NG (UINT64)(60 * 1000) // Interval to examine the IP address (previous failure)
//////////////////////////////////////////////////////////////////////
//
// Connection-related constant
//
//////////////////////////////////////////////////////////////////////
// Internet connection maintenance function (KeepAlive)
#define KEEP_RETRY_INTERVAL (60 * 1000) // Reconnection interval on connection failure
#define KEEP_MIN_PACKET_SIZE 1 // Minimum packet size
#define KEEP_MAX_PACKET_SIZE 128 // Maximum packet size
#define KEEP_POLLING_INTERVAL 250 // KEEP polling interval
// Constants
#define RECV_BUF_SIZE 65536 // Buffer size to be received at a time
// Type of proxy
#define PROXY_DIRECT 0 // Direct TCP connection
#define PROXY_HTTP 1 // Connection via HTTP proxy server
#define PROXY_SOCKS 2 // Connection via SOCKS proxy server
// Direction of data flow
#define TCP_BOTH 0 // Bi-directional
#define TCP_SERVER_TO_CLIENT 1 // Only server -> client direction
#define TCP_CLIENT_TO_SERVER 2 // Only client -> server direction
// Type of connection
#define CONNECTION_TYPE_CLIENT 0 // Client
#define CONNECTION_TYPE_INIT 1 // During initialization
#define CONNECTION_TYPE_LOGIN 2 // Login connection
#define CONNECTION_TYPE_ADDITIONAL 3 // Additional connection
#define CONNECTION_TYPE_FARM_RPC 4 // RPC for server farm
#define CONNECTION_TYPE_ADMIN_RPC 5 // RPC for Management
#define CONNECTION_TYPE_ENUM_HUB 6 // HUB enumeration
#define CONNECTION_TYPE_PASSWORD 7 // Password change
#define CONNECTION_TYPE_SSTP 8 // SSTP
#define CONNECTION_TYPE_OPENVPN 9 // OpenVPN
// Protocol
#define CONNECTION_TCP 0 // TCP protocol
#define CONNECTION_UDP 1 // UDP protocol
#define CONNECTION_HUB_LAYER3 6 // Layer-3 switch session
#define CONNECTION_HUB_BRIDGE 7 // Bridge session
#define CONNECTION_HUB_SECURE_NAT 8 // Secure NAT session
#define CONNECTION_HUB_LINK_SERVER 9 // HUB link session
// Status
#define CONNECTION_STATUS_ACCEPTED 0 // The connection is accepted (client side)
#define CONNECTION_STATUS_NEGOTIATION 1 // Negotiating
#define CONNECTION_STATUS_USERAUTH 2 // During user authentication
#define CONNECTION_STATUS_ESTABLISHED 3 // Connection has been established
#define CONNECTION_STATUS_CONNECTING 0 // Connecting (client side)
// Magic number of KeepAlive packet
#define KEEP_ALIVE_MAGIC 0xffffffff
#define MAX_KEEPALIVE_SIZE 512
//////////////////////////////////////////////////////////////////////
//
// Virtual HUB-related constant
//
//////////////////////////////////////////////////////////////////////
#define SE_HUB_MAC_ADDR_SIGN 0xAE // Sign virtual HUB MAC address
// Traffic difference value
#define TRAFFIC_DIFF_USER 0 // User
#define TRAFFIC_DIFF_HUB 1 // Virtual HUB
#define MAX_TRAFFIC_DIFF 30000 // Maximum number of items
// Type of HUB
#define HUB_TYPE_STANDALONE 0 // Stand-alone HUB
#define HUB_TYPE_FARM_STATIC 1 // Static HUB
#define HUB_TYPE_FARM_DYNAMIC 2 // Dynamic HUB
// Related to delay, jitter, packet loss in the access list
#define HUB_ACCESSLIST_DELAY_MAX 10000 // Maximum delay
#define HUB_ACCESSLIST_JITTER_MAX 100 // Maximum jitter
#define HUB_ACCESSLIST_LOSS_MAX 100 // Maximum packet loss
// Message related
#define HUB_MAXMSG_LEN 20000 // The maximum number of characters in a message
//////////////////////////////////////////////////////////////////////
//
// Type of user authentication
//
//////////////////////////////////////////////////////////////////////
// Constant in the server-side
#define AUTHTYPE_ANONYMOUS 0 // Anonymous authentication
#define AUTHTYPE_PASSWORD 1 // Password authentication
#define AUTHTYPE_USERCERT 2 // User certificate authentication
#define AUTHTYPE_ROOTCERT 3 // Root certificate which is issued by trusted Certificate Authority
#define AUTHTYPE_RADIUS 4 // Radius authentication
#define AUTHTYPE_NT 5 // Windows NT authentication
#define AUTHTYPE_OPENVPN_CERT 98 // TLS client certificate authentication
#define AUTHTYPE_TICKET 99 // Ticket authentication
// Constant of the client side
#define CLIENT_AUTHTYPE_ANONYMOUS 0 // Anonymous authentication
#define CLIENT_AUTHTYPE_PASSWORD 1 // Password authentication
#define CLIENT_AUTHTYPE_PLAIN_PASSWORD 2 // Plain password authentication
#define CLIENT_AUTHTYPE_CERT 3 // Certificate authentication
#define CLIENT_AUTHTYPE_SECURE 4 // Secure device authentication
//////////////////////////////////////////////////////////////////////
//
// TCP listener related constants
//
//////////////////////////////////////////////////////////////////////
// Retries in case it fails to Listen
#define LISTEN_RETRY_TIME (2 * 1000) // If fail to Listen normally
#define LISTEN_RETRY_TIME_NOIPV6 (60 * 1000) // If IPv6 support is disabled
#define DOS_TABLE_EXPIRES_FIRST 250 // Initial value of the expiration date of DOS attack list
#define DOS_TABLE_EXPIRES_MAX 1000 // Maximum value of the expiration date of DOS attack list
#define DOS_TABLE_REFRESH_INTERVAL (10 * 1000) // Interval to update the DOS attack list
#define DOS_TABLE_MAX_LIMIT_PER_IP 16 // Accessible number per an IP
#define DOS_TABLE_EXPIRES_TOTAL (3000 * 1000) // Time to force delete the entry
// Protocol to be used for the listener
#define LISTENER_TCP 0 // TCP/IP
#define LISTENER_UDP 1 // UDP/IP (not being used)
#define LISTENER_INPROC 2 // In-process communication
#define LISTENER_RUDP 3 // R-UDP with NAT-T
#define LISTENER_ICMP 4 // VPN over ICMP
#define LISTENER_DNS 5 // VPN over DNS
#define LISTENER_REVERSE 6 // Reverse socket
// Status of the listener
#define LISTENER_STATUS_TRYING 0 // While attempting
#define LISTENER_STATUS_LISTENING 1 // Listening
// Largest packet size of UDP
#define UDP_PACKET_SIZE 65536
// Number of standard connections per IP address
#define DEFAULT_MAX_CONNECTIONS_PER_IP 256
#define MIN_MAX_CONNECTIONS_PER_IP 10 // Minimum value
// Allowed number of outstanding connections
#define DEFAULT_MAX_UNESTABLISHED_CONNECTIONS 1000
#define MIN_MAX_UNESTABLISHED_CONNECTIONS 30 // Minimum value
//////////////////////////////////////////////////////////////////////
//
// Log related constant
//
//////////////////////////////////////////////////////////////////////
#define LOG_ENGINE_SAVE_START_CACHE_COUNT 100000 // Number to start saving forcibly
#define LOG_ENGINE_BUFFER_CACHE_SIZE_MAX (10 * 1024 * 1024) // Write cache size
// Constant such as a file name
#define SERVER_LOG_DIR_NAME "@server_log"
#define BRIDGE_LOG_DIR_NAME SERVER_LOG_DIR_NAME
#define SERVER_LOG_PERFIX "vpn"
#define HUB_SECURITY_LOG_DIR_NAME "@security_log"
#define HUB_SECURITY_LOG_FILE_NAME "@security_log/%s"
#define HUB_SECURITY_LOG_PREFIX "sec"
#define HUB_PACKET_LOG_DIR_NAME "@packet_log"
#define HUB_PACKET_LOG_FILE_NAME "@packet_log/%s"
#define HUB_PACKET_LOG_PREFIX "pkt"
#define NAT_LOG_DIR_NAME "@secure_nat_log"
#define NAT_LOG_FILE_NAME "@secure_nat_log/%s"
#define NAT_LOG_PREFIX "snat"
#define CLIENT_LOG_DIR_NAME "@client_log"
#define CLIENT_LOG_PREFIX "client"
// Packet log settings
#define NUM_PACKET_LOG 16
#define PACKET_LOG_TCP_CONN 0 // TCP connection log
#define PACKET_LOG_TCP 1 // TCP packet log
#define PACKET_LOG_DHCP 2 // DHCP Log
#define PACKET_LOG_UDP 3 // UDP log
#define PACKET_LOG_ICMP 4 // ICMP log
#define PACKET_LOG_IP 5 // IP log
#define PACKET_LOG_ARP 6 // ARP log
#define PACKET_LOG_ETHERNET 7 // Ethernet log
#define PACKET_LOG_NONE 0 // Not save
#define PACKET_LOG_HEADER 1 // Only header
#define PACKET_LOG_ALL 2 // Store also data
// Timing of log switching
#define LOG_SWITCH_NO 0 // No switching
#define LOG_SWITCH_SECOND 1 // Secondly basis
#define LOG_SWITCH_MINUTE 2 // Minutely basis
#define LOG_SWITCH_HOUR 3 // Hourly basis
#define LOG_SWITCH_DAY 4 // Daily basis
#define LOG_SWITCH_MONTH 5 // Monthly basis
// Minimum amount of free disk space
#define DISK_FREE_SPACE_MIN 1048576 // 1 MBytes
#define DISK_FREE_SPACE_DEFAULT (DISK_FREE_SPACE_MIN * 100) // 100 Mbytes
#define DISK_FREE_SPACE_DEFAULT_WINDOWS ((UINT64)(8ULL * 1024ULL * 1024ULL * 1024ULL)) // 8GBytes
// Interval to check the free space
#define DISK_FREE_CHECK_INTERVAL_DEFAULT (5 * 60 * 1000)
// Simple log
#define TINY_LOG_DIRNAME "@tiny_log"
#define TINY_LOG_FILENAME "@tiny_log/%04u%02u%02u_%02u%02u%02u.log"
//////////////////////////////////////////////////////////////////////
//
// Constant related to Carrier Edition
//
//////////////////////////////////////////////////////////////////////
#define CE_SNAPSHOT_INTERVAL ((UINT64)(3600 * 1000))
//#define CE_SNAPSHOT_INTERVAL ((UINT64)(3000))
#define CE_SNAPSHOT_POLLING_INTERVAL (1 * 1000)
#define CE_SNAPSHOT_POLLING_INTERVAL_LICENSE (30 * 1000)
#define CE_SNAPSHOT_DIR_NAME "@carrier_log"
#define CE_SNAPSHOT_PREFIX "carrier"
//////////////////////////////////////////////////////////////////////
//
// Communication protocol related constant
//
//////////////////////////////////////////////////////////////////////
// Administrator Username
#define ADMINISTRATOR_USERNAME "administrator"
// Maximum value of random size
#define RAND_SIZE_MAX 4096
// Expiration date of random size cache
#define RAND_SIZE_CACHE_EXPIRE (24 * 60 * 60 * 1000)
// Management allowed IP address list file name
#define ADMINIP_TXT "@adminip.txt"
#define NON_SSL_MIN_COUNT 60
#define NON_SSL_ENTRY_EXPIRES (10 * 60 * 1000)
//////////////////////////////////////////////////////////////////////
//
// The cascade related constants
//
//////////////////////////////////////////////////////////////////////
#define LINK_DEVICE_NAME "_SEHUBLINKCLI_"
#define LINK_USER_NAME "link"
#define LINK_USER_NAME_PRINT "Cascade"
//////////////////////////////////////////////////////////////////////
//
// Constant related to SecureNAT connection
//
//////////////////////////////////////////////////////////////////////
#define SNAT_DEVICE_NAME "_SEHUBSECURENAT_"
#define SNAT_USER_NAME "securenat"
#define SNAT_USER_NAME_PRINT "SecureNAT"
//////////////////////////////////////////////////////////////////////
//
// Constant related to bridge connection
//
//////////////////////////////////////////////////////////////////////
#define BRIDGE_DEVICE_NAME "_SEHUBBRIDGE_"
#define BRIDGE_USER_NAME "localbridge"
#define BRIDGE_USER_NAME_PRINT "Local Bridge"
#define BRIDGE_TRY_SPAN 1000
#define BRIDGE_NUM_DEVICE_CHECK_SPAN (5 * 60 * 1000)
#define BRIDGE_NETWORK_CONNECTION_STR L"%s [%S]"
//////////////////////////////////////////////////////////////////////
//
// EtherLogger related constants
//
//////////////////////////////////////////////////////////////////////
#define EL_ADMIN_PORT 22888
#define EL_CONFIG_FILENAME "@etherlogger.config"
#define EL_PACKET_LOG_DIR_NAME "@etherlogger_log"
#define EL_PACKET_LOG_FILE_NAME "@etherlogger_log/%s"
#define EL_PACKET_LOG_PREFIX "pkt"
#define EL_LICENSE_CHECK_SPAN (10 * 1000)
//////////////////////////////////////////////////////////////////////
//
// Layer-3 Switch related constants
//
//////////////////////////////////////////////////////////////////////
#define MAX_NUM_L3_SWITCH 4096
#define MAX_NUM_L3_IF 4096
#define MAX_NUM_L3_TABLE 4096
//////////////////////////////////////////////////////////////////////
//
// Constant related to User-mode Router
//
//////////////////////////////////////////////////////////////////////
#define ARP_ENTRY_EXPIRES (30 * 1000) // ARP table expiration date
#define ARP_ENTRY_POLLING_TIME (1 * 1000) // ARP table cleaning timer
#define ARP_REQUEST_TIMEOUT (1000) // ARP request time-out period
#define ARP_REQUEST_GIVEUP (5 * 1000) // Time to give up sending the ARP request
#define IP_WAIT_FOR_ARP_TIMEOUT (5 * 1000) // Total time that an IP packet waiting for ARP table
#define IP_COMBINE_TIMEOUT (10 * 1000) // Time-out of IP packet combining
#define NAT_TCP_MAX_TIMEOUT (2000000 * 1000) // Maximum TCP session timeout in seconds
#define NAT_UDP_MAX_TIMEOUT (2000000 * 1000) // Maximum UDP session timeout in seconds
#define NAT_TCP_MIN_TIMEOUT (1 * 60 * 1000) // Minimum TCP session timeout in seconds
#define NAT_UDP_MIN_TIMEOUT (10 * 1000) // Minimum UDP session timeout in seconds
#define NAT_TCP_RECV_WINDOW_SIZE 64512 // TCP receive window size
#define NAT_TCP_SYNACK_SEND_TIMEOUT 250 // Sending TCP SYN+ACK interval
#define NAT_ICMP_TIMEOUT (10 * 1000) // ICMP timeout in seconds
#define NAT_ICMP_TIMEOUT_WITH_API (3 * 1000) // Timeout in seconds in the case of using the ICMP API
#define NAT_SEND_BUF_SIZE (64 * 1024) // TCP send buffer size
#define NAT_RECV_BUF_SIZE (64 * 1024) // TCP receive buffer size
#define NAT_TMPBUF_SIZE (128 * 1024) // TCP temporally memory area size
#define NAT_ACK_KEEPALIVE_SPAN (5 * 1000) // ACK transmission interval for TCP keep alive
#define NAT_INITIAL_RTT_VALUE 500 // Initial RTT value
#define NAT_FIN_SEND_INTERVAL 1000 // FIN transmission interval
#define NAT_FIN_SEND_MAX_COUNT 5 // Total number of FIN transmissions
#define NAT_DNS_PROXY_PORT 53 // DNS proxy port number
#define NAT_DNS_RESPONSE_TTL (20 * 60) // TTL of the DNS response
#define NAT_DHCP_SERVER_PORT 67 // DHCP server port number
#define NAT_DHCP_CLIENT_PORT 68 // DHCP client port number
#define DHCP_MIN_EXPIRE_TIMESPAN (15 * 1000) // DHCP minimum expiration date
#define DHCP_POLLING_INTERVAL 1000 // DHCP polling interval
#define X32 ((UINT64)4294967296ULL) // 32bit + 1
#define NAT_DNS_QUERY_TIMEOUT (512) // Time-out value of DNS queries
// Beacon transmission interval
#define BEACON_SEND_INTERVAL (5 * 1000)
// Total size quota allowed in the queue for the combining the IP packet
#define IP_COMBINE_WAIT_QUEUE_SIZE_QUOTA (50 * 1024 * 1024)
// Header size constant
#define MAC_HEADER_SIZE (sizeof(MAC_HEADER))
#define ARP_HEADER_SIZE (sizeof(ARP_HEADER))
#define IP_HEADER_SIZE (sizeof(IPV4_HEADER))
#define TCP_HEADER_SIZE (sizeof(TCP_HEADER))
#define UDP_HEADER_SIZE (sizeof(UDP_HEADER))
// Data maximum size constant
#define MAX_L3_DATA_SIZE (1500)
#define MAX_IP_DATA_SIZE (MAX_L3_DATA_SIZE - IP_HEADER_SIZE)
#define MAX_TCP_DATA_SIZE (MAX_IP_DATA_SIZE - TCP_HEADER_SIZE)
#define MAX_UDP_DATA_SIZE (MAX_IP_DATA_SIZE - UDP_HEADER_SIZE)
#define MAX_IP_DATA_SIZE_TOTAL (65535)
// IP packet option constant
#define DEFAULT_IP_TOS 0 // TOS in the IP header
#define DEFAULT_IP_TTL 128 // TTL in the IP header
// Type of NAT session
#define NAT_TCP 0 // TCP NAT
#define NAT_UDP 1 // UDP NAT
#define NAT_DNS 2 // DNS NAT
#define NAT_ICMP 3 // ICMP NAT
// State of NAT session
#define NAT_TCP_CONNECTING 0 // Connecting
#define NAT_TCP_SEND_RESET 1 // Send the RST (Connection failure or disconnected)
#define NAT_TCP_CONNECTED 2 // Connection complete
#define NAT_TCP_ESTABLISHED 3 // Connection established
#define NAT_TCP_WAIT_DISCONNECT 4 // Wait for socket disconnection
//////////////////////////////////////////////////////////////////////
//
// For UNIX virtual LAN card related constant
//
//////////////////////////////////////////////////////////////////////
#define TAP_FILENAME_1 "/dev/net/tun"
#define TAP_FILENAME_2 "/dev/tun"
#ifdef UNIX_MACOS
#ifdef NO_VLAN
#define TAP_MACOS_FILENAME "/dev/tap0"
#else // NO_VLAN
#define TAP_MACOS_FILENAME "tap"
#endif // NO_VLAN
#define TAP_MACOS_DIR "/dev/"
#define TAP_MACOS_NUMBER (16)
#endif // UNIX_MACOS
#define LICENSE_EDITION_VPN3_NO_LICENSE 0 // Without license
#define LICENSE_MAX_PRODUCT_NAME_LEN 255 // Maximum length of license product name
#define LICENSE_NUM_SHA 10000 // Number of times to hash with SHA
#define LICENSE_SYSTEM_KEY_NUM 2048 // Key number for system
#define LICENSE_SYSTEM_KEYSIZE_BIT 144 // Number of key bits for system
#define LICENSE_PRODUCT_KEY_NUM 16384 // Number of keys for product
#define LICENSE_PRODUCT_KEYSIZE_BIT 56 // Number of key bits for product
#define LICENSE_PRODUCT_COMMON_KEYSIZE_BIT 48 // Number of common key bits for product
#define LICENSE_MASTER_KEYSIZE_BIT 1024 // Number of master key bits
#define LICENSE_SYSTEM_ID_MIN 0ULL // System ID minimum value
#define LICENSE_SYSTEM_ID_MAX 549755813887ULL // System ID maximum value
#define LICENSE_SERIAL_ID_MIN 0 // Serial ID minimum value
#define LICENSE_SERIAL_ID_MAX 65535 // Serial ID maximum value
#define LICENSE_EXPIRES_MIN 0 // Expiration date minimum
#define LICENSE_EXPIRES_MAX 16383 // Expiration date maximum
#define LICENSE_KEYSTR_LEN 41 // Length of the license key
#define LICENSE_LICENSEID_STR_LEN 33 // Length of the license ID
#define LICENSE_STATUS_OK 0 // Enabled
#define LICENSE_STATUS_EXPIRED 1 // Invalid (expired)
#define LICENSE_STATUS_ID_DIFF 2 // Invalid (System ID mismatch)
#define LICENSE_STATUS_DUP 3 // Invalid (duplicated)
#define LICENSE_STATUS_INSUFFICIENT 4 // Invalid (other necessary license shortage)
#define LICENSE_STATUS_COMPETITION 5 // Invalid (conflict with other licenses)
#define LICENSE_STATUS_NONSENSE 6 // Invalid (meaningless in the current edition)
#define LICENSE_STATUS_CPU 7 // Invalid (CPU type mismatch)
#define BIT_TO_BYTE(x) (((x) + 7) / 8)
#define BYTE_TO_BIT(x) ((x) * 8)
//////////////////////////////////////////////////////////////////////
//
// Error code
//
//////////////////////////////////////////////////////////////////////
#define ERR_NO_ERROR 0 // No error
#define ERR_CONNECT_FAILED 1 // Connection to the server has failed
#define ERR_SERVER_IS_NOT_VPN 2 // The destination server is not a VPN server
#define ERR_DISCONNECTED 3 // The connection has been interrupted
#define ERR_PROTOCOL_ERROR 4 // Protocol error
#define ERR_CLIENT_IS_NOT_VPN 5 // Connecting client is not a VPN client
#define ERR_USER_CANCEL 6 // User cancel
#define ERR_AUTHTYPE_NOT_SUPPORTED 7 // Specified authentication method is not supported
#define ERR_HUB_NOT_FOUND 8 // The HUB does not exist
#define ERR_AUTH_FAILED 9 // Authentication failure
#define ERR_HUB_STOPPING 10 // HUB is stopped
#define ERR_SESSION_REMOVED 11 // Session has been deleted
#define ERR_ACCESS_DENIED 12 // Access denied
#define ERR_SESSION_TIMEOUT 13 // Session times out
#define ERR_INVALID_PROTOCOL 14 // Protocol is invalid
#define ERR_TOO_MANY_CONNECTION 15 // Too many connections
#define ERR_HUB_IS_BUSY 16 // Too many sessions of the HUB
#define ERR_PROXY_CONNECT_FAILED 17 // Connection to the proxy server fails
#define ERR_PROXY_ERROR 18 // Proxy Error
#define ERR_PROXY_AUTH_FAILED 19 // Failed to authenticate on the proxy server
#define ERR_TOO_MANY_USER_SESSION 20 // Too many sessions of the same user
#define ERR_LICENSE_ERROR 21 // License error
#define ERR_DEVICE_DRIVER_ERROR 22 // Device driver error
#define ERR_INTERNAL_ERROR 23 // Internal error
#define ERR_SECURE_DEVICE_OPEN_FAILED 24 // The secure device cannot be opened
#define ERR_SECURE_PIN_LOGIN_FAILED 25 // PIN code is incorrect
#define ERR_SECURE_NO_CERT 26 // Specified certificate is not stored
#define ERR_SECURE_NO_PRIVATE_KEY 27 // Specified private key is not stored
#define ERR_SECURE_CANT_WRITE 28 // Write failure
#define ERR_OBJECT_NOT_FOUND 29 // Specified object can not be found
#define ERR_VLAN_ALREADY_EXISTS 30 // Virtual LAN card with the specified name already exists
#define ERR_VLAN_INSTALL_ERROR 31 // Specified virtual LAN card cannot be created
#define ERR_VLAN_INVALID_NAME 32 // Specified name of the virtual LAN card is invalid
#define ERR_NOT_SUPPORTED 33 // Unsupported
#define ERR_ACCOUNT_ALREADY_EXISTS 34 // Account already exists
#define ERR_ACCOUNT_ACTIVE 35 // Account is operating
#define ERR_ACCOUNT_NOT_FOUND 36 // Specified account doesn't exist
#define ERR_ACCOUNT_INACTIVE 37 // Account is offline
#define ERR_INVALID_PARAMETER 38 // Parameter is invalid
#define ERR_SECURE_DEVICE_ERROR 39 // Error has occurred in the operation of the secure device
#define ERR_NO_SECURE_DEVICE_SPECIFIED 40 // Secure device is not specified
#define ERR_VLAN_IS_USED 41 // Virtual LAN card in use by account
#define ERR_VLAN_FOR_ACCOUNT_NOT_FOUND 42 // Virtual LAN card of the account can not be found
#define ERR_VLAN_FOR_ACCOUNT_USED 43 // Virtual LAN card of the account is already in use
#define ERR_VLAN_FOR_ACCOUNT_DISABLED 44 // Virtual LAN card of the account is disabled
#define ERR_INVALID_VALUE 45 // Value is invalid
#define ERR_NOT_FARM_CONTROLLER 46 // Not a farm controller
#define ERR_TRYING_TO_CONNECT 47 // Attempting to connect
#define ERR_CONNECT_TO_FARM_CONTROLLER 48 // Failed to connect to the farm controller
#define ERR_COULD_NOT_HOST_HUB_ON_FARM 49 // A virtual HUB on farm could not be created
#define ERR_FARM_MEMBER_HUB_ADMIN 50 // HUB cannot be managed on a farm member
#define ERR_NULL_PASSWORD_LOCAL_ONLY 51 // Accepting only local connections for an empty password
#define ERR_NOT_ENOUGH_RIGHT 52 // Right is insufficient
#define ERR_LISTENER_NOT_FOUND 53 // Listener can not be found
#define ERR_LISTENER_ALREADY_EXISTS 54 // Listener already exists
#define ERR_NOT_FARM_MEMBER 55 // Not a farm member
#define ERR_CIPHER_NOT_SUPPORTED 56 // Encryption algorithm is not supported
#define ERR_HUB_ALREADY_EXISTS 57 // HUB already exists
#define ERR_TOO_MANY_HUBS 58 // Too many HUBs
#define ERR_LINK_ALREADY_EXISTS 59 // Link already exists
#define ERR_LINK_CANT_CREATE_ON_FARM 60 // The link can not be created on the server farm
#define ERR_LINK_IS_OFFLINE 61 // Link is off-line
#define ERR_TOO_MANY_ACCESS_LIST 62 // Too many access list
#define ERR_TOO_MANY_USER 63 // Too many users
#define ERR_TOO_MANY_GROUP 64 // Too many Groups
#define ERR_GROUP_NOT_FOUND 65 // Group can not be found
#define ERR_USER_ALREADY_EXISTS 66 // User already exists
#define ERR_GROUP_ALREADY_EXISTS 67 // Group already exists
#define ERR_USER_AUTHTYPE_NOT_PASSWORD 68 // Authentication method of the user is not a password authentication
#define ERR_OLD_PASSWORD_WRONG 69 // The user does not exist or the old password is wrong
#define ERR_LINK_CANT_DISCONNECT 73 // Cascade session cannot be disconnected
#define ERR_ACCOUNT_NOT_PRESENT 74 // Not completed configure the connection to the VPN server
#define ERR_ALREADY_ONLINE 75 // It is already online
#define ERR_OFFLINE 76 // It is offline
#define ERR_NOT_RSA_1024 77 // The certificate is not RSA 1024bit
#define ERR_SNAT_CANT_DISCONNECT 78 // SecureNAT session cannot be disconnected
#define ERR_SNAT_NEED_STANDALONE 79 // SecureNAT works only in stand-alone HUB
#define ERR_SNAT_NOT_RUNNING 80 // SecureNAT function is not working
#define ERR_SE_VPN_BLOCK 81 // Stopped by PacketiX VPN Block
#define ERR_BRIDGE_CANT_DISCONNECT 82 // Bridge session can not be disconnected
#define ERR_LOCAL_BRIDGE_STOPPING 83 // Bridge function is stopped
#define ERR_LOCAL_BRIDGE_UNSUPPORTED 84 // Bridge feature is not supported
#define ERR_CERT_NOT_TRUSTED 85 // Certificate of the destination server can not be trusted
#define ERR_PRODUCT_CODE_INVALID 86 // Product code is different
#define ERR_VERSION_INVALID 87 // Version is different
#define ERR_CAPTURE_DEVICE_ADD_ERROR 88 // Adding capture device failure
#define ERR_VPN_CODE_INVALID 89 // VPN code is different
#define ERR_CAPTURE_NOT_FOUND 90 // Capture device can not be found
#define ERR_LAYER3_CANT_DISCONNECT 91 // Layer-3 session cannot be disconnected
#define ERR_LAYER3_SW_EXISTS 92 // L3 switch of the same already exists
#define ERR_LAYER3_SW_NOT_FOUND 93 // Layer-3 switch can not be found
#define ERR_INVALID_NAME 94 // Name is invalid
#define ERR_LAYER3_IF_ADD_FAILED 95 // Failed to add interface
#define ERR_LAYER3_IF_DEL_FAILED 96 // Failed to delete the interface
#define ERR_LAYER3_IF_EXISTS 97 // Interface that you specified already exists
#define ERR_LAYER3_TABLE_ADD_FAILED 98 // Failed to add routing table
#define ERR_LAYER3_TABLE_DEL_FAILED 99 // Failed to delete the routing table
#define ERR_LAYER3_TABLE_EXISTS 100 // Routing table entry that you specified already exists
#define ERR_BAD_CLOCK 101 // Time is queer
#define ERR_LAYER3_CANT_START_SWITCH 102 // The Virtual Layer 3 Switch can not be started
#define ERR_CLIENT_LICENSE_NOT_ENOUGH 103 // Client connection licenses shortage
#define ERR_BRIDGE_LICENSE_NOT_ENOUGH 104 // Bridge connection licenses shortage
#define ERR_SERVER_CANT_ACCEPT 105 // Not Accept on the technical issues
#define ERR_SERVER_CERT_EXPIRES 106 // Destination VPN server has expired
#define ERR_MONITOR_MODE_DENIED 107 // Monitor port mode was rejected
#define ERR_BRIDGE_MODE_DENIED 108 // Bridge-mode or Routing-mode was rejected
#define ERR_IP_ADDRESS_DENIED 109 // Client IP address is denied
#define ERR_TOO_MANT_ITEMS 110 // Too many items
#define ERR_MEMORY_NOT_ENOUGH 111 // Out of memory
#define ERR_OBJECT_EXISTS 112 // Object already exists
#define ERR_FATAL 113 // A fatal error occurred
#define ERR_SERVER_LICENSE_FAILED 114 // License violation has occurred on the server side
#define ERR_SERVER_INTERNET_FAILED 115 // Server side is not connected to the Internet
#define ERR_CLIENT_LICENSE_FAILED 116 // License violation occurs on the client side
#define ERR_BAD_COMMAND_OR_PARAM 117 // Command or parameter is invalid
#define ERR_INVALID_LICENSE_KEY 118 // License key is invalid
#define ERR_NO_VPN_SERVER_LICENSE 119 // There is no valid license for the VPN Server
#define ERR_NO_VPN_CLUSTER_LICENSE 120 // There is no cluster license
#define ERR_NOT_ADMINPACK_SERVER 121 // Not trying to connect to a server with the Administrator Pack license
#define ERR_NOT_ADMINPACK_SERVER_NET 122 // Not trying to connect to a server with the Administrator Pack license (for .NET)
#define ERR_BETA_EXPIRES 123 // Destination Beta VPN Server has expired
#define ERR_BRANDED_C_TO_S 124 // Branding string of connection limit is different (Authentication on the server side)
#define ERR_BRANDED_C_FROM_S 125 // Branding string of connection limit is different (Authentication for client-side)
#define ERR_AUTO_DISCONNECTED 126 // VPN session is disconnected for a certain period of time has elapsed
#define ERR_CLIENT_ID_REQUIRED 127 // Client ID does not match
#define ERR_TOO_MANY_USERS_CREATED 128 // Too many created users
#define ERR_SUBSCRIPTION_IS_OLDER 129 // Subscription expiration date Is earlier than the build date of the VPN Server
#define ERR_ILLEGAL_TRIAL_VERSION 130 // Many trial license is used continuously
#define ERR_NAT_T_TWO_OR_MORE 131 // There are multiple servers in the back of a global IP address in the NAT-T connection
#define ERR_DUPLICATE_DDNS_KEY 132 // DDNS host key duplicate
#define ERR_DDNS_HOSTNAME_EXISTS 133 // Specified DDNS host name already exists
#define ERR_DDNS_HOSTNAME_INVALID_CHAR 134 // Characters that can not be used for the host name is included
#define ERR_DDNS_HOSTNAME_TOO_LONG 135 // Host name is too long
#define ERR_DDNS_HOSTNAME_IS_EMPTY 136 // Host name is not specified
#define ERR_DDNS_HOSTNAME_TOO_SHORT 137 // Host name is too short
#define ERR_MSCHAP2_PASSWORD_NEED_RESET 138 // Necessary that password is changed
#define ERR_DDNS_DISCONNECTED 139 // Communication to the dynamic DNS server is disconnected
#define ERR_SPECIAL_LISTENER_ICMP_ERROR 140 // The ICMP socket can not be opened
#define ERR_SPECIAL_LISTENER_DNS_ERROR 141 // Socket for DNS port can not be opened
#define ERR_OPENVPN_IS_NOT_ENABLED 142 // OpenVPN server feature is not enabled
#define ERR_NOT_SUPPORTED_AUTH_ON_OPENSOURCE 143 // It is the type of user authentication that are not supported in the open source version
#define ERR_VPNGATE 144 // Operation on VPN Gate Server is not available
#define ERR_VPNGATE_CLIENT 145 // Operation on VPN Gate Client is not available
#define ERR_VPNGATE_INCLIENT_CANT_STOP 146 // Can not be stopped if operating within VPN Client mode
#define ERR_NOT_SUPPORTED_FUNCTION_ON_OPENSOURCE 147 // It is a feature that is not supported in the open source version
#define ERR_SUSPENDING 148 // System is suspending
////////////////////////////
// Generally used structure
// Network Services
typedef struct NETSVC
{
bool Udp; // false=TCP, true=UDP
UINT Port; // Port number
char *Name; // Name
} NETSVC;
// Traffic data entry
typedef struct TRAFFIC_ENTRY
{
UINT64 BroadcastCount; // Number of broadcast packets
UINT64 BroadcastBytes; // Broadcast bytes
UINT64 UnicastCount; // Unicast count
UINT64 UnicastBytes; // Unicast bytes
} TRAFFIC_ENTRY;
// Traffic data
typedef struct TRAFFIC
{
TRAFFIC_ENTRY Send; // Transmitted data
TRAFFIC_ENTRY Recv; // Received data
} TRAFFIC;
// Non-SSL connection source
typedef struct NON_SSL
{
IP IpAddress; // IP address
UINT64 EntryExpires; // Expiration date of entry
UINT Count; // Number of connection count
} NON_SSL;
// Simple log storage
typedef struct TINY_LOG
{
char FileName[MAX_PATH]; // File name
IO *io; // File
LOCK *Lock; // Lock
} TINY_LOG;
// CEDAR structure
typedef struct CEDAR
{
LOCK *lock; // Lock
REF *ref; // Reference counter
COUNTER *AcceptingSockets; // Number of sockets in Accept
UINT Type; // Type
LIST *ListenerList; // Listener list
LIST *HubList; // HUB list
LIST *ConnectionList; // Negotiating connection list
LIST *CaList; // List of CA
volatile bool Halt; // Halt flag
COUNTER *ConnectionIncrement; // Connection increment counter
X *ServerX; // Server certificate
K *ServerK; // Private key of the server certificate
char *CipherList; // List of encryption algorithms
UINT Version; // Version information
UINT Build; // Build Number
char *ServerStr; // Server string
char *MachineName; // Computer name
char *HttpUserAgent; // HTTP user agent
char *HttpAccept; // HTTP Accept
char *HttpAcceptLanguage; // HTTP Accept Language
char *HttpAcceptEncoding; // HTTP Accept Encoding
TRAFFIC *Traffic; // Traffic information
LOCK *TrafficLock; // Traffic information lock
LIST *UDPEntryList; // UDP entry list
COUNTER *CurrentSessions; // The current number of sessions
COUNTER *CurrentTcpConnections; // Number of current TCP connections
LIST *NetSvcList; // Network service list
char *VerString; // Version string
char *BuildInfo; // Build Information
struct CLIENT *Client; // Client
struct SERVER *Server; // Server
UINT64 CreatedTick; // Generation date and time
bool CheckExpires; // Check the expiration date
LIST *TrafficDiffList; // Traffic difference list
struct LOG *DebugLog; // Debug log
UCHAR UniqueId[16]; // Unique ID
LIST *LocalBridgeList; // Local bridge list
bool Bridge; // Bridge version
LIST *L3SwList; // Layer-3 switch list
COUNTER *AssignedClientLicense; // Number of assigned client licenses
COUNTER *AssignedBridgeLicense; // Number of assigned bridge licenses
UINT64 LicenseViolationTick; // License violation occurs
LIST *NonSslList; // Non-SSL connection list
struct WEBUI *WebUI; // Data for WebUI service
UINT Beta; // Beta number
LOCK *CedarSuperLock; // Cedar super lock!
bool DisableIPv6Listener; // Disable IPv6 listener
UINT ClientId; // Client ID
UINT64 BuiltDate; // Build Date
LIST *UdpPortList; // UDP port list in use
char CurrentDDnsFqdn[MAX_SIZE]; // FQDN of the current DDNS
char OpenVPNPublicPorts[MAX_SIZE]; // OpenVPN public UDP port list
LOCK *OpenVPNPublicPortsLock; // Lock of OpenVPN public UDP port list
LOCK *CurrentRegionLock; // Current region lock
char CurrentRegion[128]; // Current region
LOCK *CurrentTcpQueueSizeLock; // Current TCP send queue size lock
UINT CurrentTcpQueueSize; // Current TCP send queue size
COUNTER *CurrentActiveLinks; // Current active cascade connections
LOCK *QueueBudgetLock; // Queue budget lock
UINT QueueBudget; // Queue budget
LOCK *FifoBudgetLock; // Fifo budget lock
UINT FifoBudget; // Fifo budget
SSL_ACCEPT_SETTINGS SslAcceptSettings; // SSL Accept Settings
UINT DhParamBits; // Bits of Diffie-Hellman parameters
char OpenVPNDefaultClientOption[MAX_SIZE]; // OpenVPN Default Client Option String
} CEDAR;
// Type of CEDAR
#define CEDAR_CLIENT 0 // Client
#define CEDAR_STANDALONE_SERVER 1 // Stand-alone server
#define CEDAR_FARM_CONTROLLER 2 // Server farm controller
#define CEDAR_FARM_MEMBER 3 // Server farm member
////////////////////////////
// Read the header file
// Type
#include <Cedar/CedarType.h>
// Account Manager
#include <Cedar/Account.h>
// Listener module
#include <Cedar/Listener.h>
// Log storage module
#include <Cedar/Logging.h>
// Connection management
#include <Cedar/Connection.h>
// Session Management
#include <Cedar/Session.h>
// RPC
#include <Cedar/Remote.h>
// HUB management
#include <Cedar/Hub.h>
// Security Accounts Manager
#include <Cedar/Sam.h>
// Radius authentication module
#include <Cedar/Radius.h>
// Protocol
#include <Cedar/Protocol.h>
// Inter-HUB link
#include <Cedar/Link.h>
// User-mode virtual host
#include <Cedar/Virtual.h>
// SecureNAT
#include <Cedar/SecureNAT.h>
// Digital watermark
#include <Cedar/WaterMark.h>
// Secure data
#include <Cedar/SecureInfo.h>
// Console service
#include <Cedar/Console.h>
// Vpncmd utility
#include <Cedar/Command.h>
// RPC over HTTP
#include <Cedar/Wpc.h>
// IPsec
#include <Cedar/IPsec.h>
#include <Cedar/IPsec_L2TP.h>
#include <Cedar/IPsec_PPP.h>
#include <Cedar/IPsec_IPC.h>
#include <Cedar/IPsec_IkePacket.h>
#include <Cedar/IPsec_IKE.h>
#include <Cedar/IPsec_Win7.h>
#include <Cedar/IPsec_EtherIP.h>
// SSTP
#include <Cedar/Interop_SSTP.h>
// OpenVPN
#include <Cedar/Interop_OpenVPN.h>
// UDP Acceleration
#include <Cedar/UdpAccel.h>
// DDNS Client
#include <Cedar/DDNS.h>
// VPN Azure Client
#include <Cedar/AzureClient.h>
// VPN Azure Server
#include <Cedar/AzureServer.h>
// Native IP Stack
#include <Cedar/NativeStack.h>
#ifdef OS_WIN32
// Neo device driver
#include <Neo/Neo.h>
// SeLow User-mode
#include <Cedar/SeLowUser.h>
#endif // OS_WIN32
// Neo device driver manipulation library
#include <Cedar/VLan.h>
// Bridge
#include <Cedar/Bridge.h>
// Layer-3 switch
#include <Cedar/Layer3.h>
// Virtual LAN card for test
#include <Cedar/NullLan.h>
// Client
#include <Cedar/Client.h>
// Server
#include <Cedar/Server.h>
// License database
#include <Cedar/Database.h>
// EtherLogger
#include <Cedar/EtherLog.h>
// Management RPC
#include <Cedar/Admin.h>
// User-mode Router
#include <Cedar/Nat.h>
// Web UI
#include <Cedar/WebUI.h>
// VPN Gate Main Implementation
#include <Cedar/VG.h>
#ifdef OS_WIN32
// Win32 user interface
#include <Cedar/WinUi.h>
// Win32 Client Connection Manager
#include <Cedar/CM.h>
// Win32 Server Manager
#include <Cedar/SM.h>
// Win32 User-mode Router Manager
#include <Cedar/NM.h>
// Win32 EtherLogger Manager
#include <Cedar/EM.h>
// Win32 Network Utility
#include <Cedar/UT.h>
// Win32 Setup Wizard
#include <Cedar/SW.h>
// Win32 COM calling module
#include <Cedar/Win32Com.h>
#endif
////////////////////////////
// Function prototype
TRAFFIC *NewTraffic();
void FreeTraffic(TRAFFIC *t);
CEDAR *NewCedar(X *server_x, K *server_k);
void CedarForceLink();
void SetCedarVpnBridge(CEDAR *c);
void SetCedarCert(CEDAR *c, X *server_x, K *server_k);
void ReleaseCedar(CEDAR *c);
void CleanupCedar(CEDAR *c);
void StopCedar(CEDAR *c);
void AddListener(CEDAR *c, LISTENER *r);
void StopAllListener(CEDAR *c);
void AddTraffic(TRAFFIC *dst, TRAFFIC *diff);
void AddHub(CEDAR *c, HUB *h);
void DelHub(CEDAR *c, HUB *h);
void DelHubEx(CEDAR *c, HUB *h, bool no_lock);
void StopAllHub(CEDAR *c);
void StopAllConnection(CEDAR *c);
void AddConnection(CEDAR *cedar, CONNECTION *c);
UINT GetUnestablishedConnections(CEDAR *cedar);
void DelConnection(CEDAR *cedar, CONNECTION *c);
void SetCedarCipherList(CEDAR *cedar, char *name);
void InitCedar();
void FreeCedar();
void AddCa(CEDAR *cedar, X *x);
bool DeleteCa(CEDAR *cedar, UINT ptr);
bool CheckSignatureByCa(CEDAR *cedar, X *x);
bool CheckSignatureByCaLinkMode(SESSION *s, X *x);
X *FindCaSignedX(LIST *o, X *x);
void InitNetSvcList(CEDAR *cedar);
void FreeNetSvcList(CEDAR *cedar);
int CompareNetSvc(void *p1, void *p2);
char *GetSvcName(CEDAR *cedar, bool udp, UINT port);
void InitHiddenPassword(char *str, UINT size);
bool IsHiddenPasswordChanged(char *str);
UINT64 GetTrafficPacketSize(TRAFFIC *t);
UINT64 GetTrafficPacketNum(TRAFFIC *t);
void EnableDebugLog(CEDAR *c);
void StartCedarLog();
void StopCedarLog();
int CompareNoSslList(void *p1, void *p2);
void InitNoSslList(CEDAR *c);
void FreeNoSslList(CEDAR *c);
bool AddNoSsl(CEDAR *c, IP *ip);
void DecrementNoSsl(CEDAR *c, IP *ip, UINT num_dec);
void DeleteOldNoSsl(CEDAR *c);
NON_SSL *SearchNoSslList(CEDAR *c, IP *ip);
bool IsInNoSsl(CEDAR *c, IP *ip);
void FreeTinyLog(TINY_LOG *t);
void WriteTinyLog(TINY_LOG *t, char *str);
TINY_LOG *NewTinyLog();
void GetWinVer(RPC_WINVER *v);
bool IsSupportedWinVer(RPC_WINVER *v);
bool IsLaterBuild(CEDAR *c, UINT64 t);
SOCK *GetInProcListeningSock(CEDAR *c);
SOCK *GetReverseListeningSock(CEDAR *c);
void GetCedarVersion(char *tmp, UINT size);
UINT64 GetCurrentBuildDate();
void CedarAddCurrentTcpQueueSize(CEDAR *c, int diff);
UINT CedarGetCurrentTcpQueueSize(CEDAR *c);
void CedarAddQueueBudget(CEDAR *c, int diff);
void CedarAddFifoBudget(CEDAR *c, int diff);
UINT CedarGetQueueBudgetConsuming(CEDAR *c);
UINT CedarGetFifoBudgetConsuming(CEDAR *c);
UINT CedarGetQueueBudgetBalance(CEDAR *c);
UINT CedarGetFifoBudgetBalance(CEDAR *c);
bool CedarIsThereAnyEapEnabledRadiusConfig(CEDAR *c);
#endif // CEDAR_H
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