1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
|
// SoftEther VPN Source Code - Stable Edition Repository
// Cedar Communication Module
//
// SoftEther VPN Server, Client and Bridge are free software under the Apache License, Version 2.0.
//
// Copyright (c) Daiyuu Nobori.
// Copyright (c) SoftEther VPN Project, University of Tsukuba, Japan.
// Copyright (c) SoftEther Corporation.
Copyright (c) all contributors on SoftEther VPN project in GitHub.
//
// All Rights Reserved.
//
// http://www.softether.org/
//
// This stable branch is officially managed by Daiyuu Nobori, the owner of SoftEther VPN Project.
// Pull requests should be sent to the Developer Edition Master Repository on https://github.com/SoftEtherVPN/SoftEtherVPN
// 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.
// NativeStack.h
// Header of NativeStack.c
#ifndef NATIVESTACK_H
#define NATIVESTACK_H
//// Constants
#define NS_MAC_ADDRESS_BYTE_1 0xDA // First byte of the MAC address
#define NS_CHECK_IPTABLES_INTERVAL_INIT (1 * 1000)
#define NS_CHECK_IPTABLES_INTERVAL_MAX (5 * 60 * 1000)
//// Type
struct NATIVE_STACK
{
CEDAR *Cedar;
IPC *Ipc; // IPC object
char DeviceName[MAX_SIZE]; // Ethernet device name
THREAD *MainThread; // Main thread
bool Halt; // Halting flag
CANCEL *Cancel; // Cancel
UCHAR MacAddress[6]; // MAC address of the virtual host
ETH *Eth; // Eth device
SOCK *Sock1; // Sock1 (To be used in the bridge side)
SOCK *Sock2; // Sock2 (Used in the IPC side)
DHCP_OPTION_LIST CurrentDhcpOptionList; // Current DHCP options list
IP DnsServerIP; // IP address of the DNS server
IP DnsServerIP2; // IP address of the DNS server #2
bool IsIpRawMode;
IP MyIP_InCaseOfIpRawMode; // My IP
THREAD *IpTablesThread;
EVENT *IpTablesHaltEvent;
bool IpTablesHalt;
bool IpTablesInitOk;
};
struct IPTABLES_ENTRY
{
char Chain[64];
UINT LineNumber;
char ConditionAndArgs[MAX_SIZE];
IP DummySrcIp, DummyDestIP;
UINT DummyMark;
};
struct IPTABLES_STATE
{
UCHAR SeedHash[SHA1_SIZE];
LIST *EntryList;
bool HasError;
};
//// Function prototype
NATIVE_STACK *NewNativeStack(CEDAR *cedar, char *device_name, char *mac_address_seed);
void FreeNativeStack(NATIVE_STACK *a);
void NsGenMacAddress(void *dest, char *mac_address_seed, char *device_name);
void NsMainThread(THREAD *thread, void *param);
void NsGenMacAddressSignatureForMachine(UCHAR *dst_last_2, UCHAR *src_mac_addr_4);
bool NsIsMacAddressOnLocalhost(UCHAR *mac);
bool NsStartIpTablesTracking(NATIVE_STACK *a);
void NsStopIpTablesTracking(NATIVE_STACK *a);
void NsIpTablesThread(THREAD *thread, void *param);
IPTABLES_STATE *GetCurrentIpTables();
void FreeIpTablesState(IPTABLES_STATE *s);
bool IsIpTablesSupported();
IPTABLES_ENTRY *SearchIpTables(IPTABLES_STATE *s, char *chain, IP *src_ip, IP *dest_ip, UINT mark);
UINT GetCurrentIpTableLineNumber(char *chain, IP *src_ip, IP *dest_ip, UINT mark);
IPTABLES_STATE *StartAddIpTablesEntryForNativeStack(void *seed, UINT seed_size);
void EndAddIpTablesEntryForNativeStack(IPTABLES_STATE *s);
bool MaintainAddIpTablesEntryForNativeStack(IPTABLES_STATE *s);
void GenerateDummyIpAndMark(void *hash_seed, IPTABLES_ENTRY *e, UINT id);
UINT GenerateDummyMark(PRAND *p);
void GenerateDummyIp(PRAND *p, IP *ip);
#endif // NATIVESTACK_H
|
