1 // SoftEther VPN Source Code - Stable Edition Repository 2 // Cedar Communication Module 3 // 4 // SoftEther VPN Server, Client and Bridge are free software under the Apache License, Version 2.0. 5 // 6 // Copyright (c) Daiyuu Nobori. 7 // Copyright (c) SoftEther VPN Project, University of Tsukuba, Japan. 8 // Copyright (c) SoftEther Corporation. 9 // Copyright (c) all contributors on SoftEther VPN project in GitHub. 10 // 11 // All Rights Reserved. 12 // 13 // http://www.softether.org/ 14 // 15 // This stable branch is officially managed by Daiyuu Nobori, the owner of SoftEther VPN Project. 16 // Pull requests should be sent to the Developer Edition Master Repository on https://github.com/SoftEtherVPN/SoftEtherVPN 17 // 18 // License: The Apache License, Version 2.0 19 // https://www.apache.org/licenses/LICENSE-2.0 20 // 21 // DISCLAIMER 22 // ========== 23 // 24 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 25 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 26 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 27 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 28 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 29 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE 30 // SOFTWARE. 31 // 32 // THIS SOFTWARE IS DEVELOPED IN JAPAN, AND DISTRIBUTED FROM JAPAN, UNDER 33 // JAPANESE LAWS. YOU MUST AGREE IN ADVANCE TO USE, COPY, MODIFY, MERGE, PUBLISH, 34 // DISTRIBUTE, SUBLICENSE, AND/OR SELL COPIES OF THIS SOFTWARE, THAT ANY 35 // JURIDICAL DISPUTES WHICH ARE CONCERNED TO THIS SOFTWARE OR ITS CONTENTS, 36 // AGAINST US (SOFTETHER PROJECT, SOFTETHER CORPORATION, DAIYUU NOBORI OR OTHER 37 // SUPPLIERS), OR ANY JURIDICAL DISPUTES AGAINST US WHICH ARE CAUSED BY ANY KIND 38 // OF USING, COPYING, MODIFYING, MERGING, PUBLISHING, DISTRIBUTING, SUBLICENSING, 39 // AND/OR SELLING COPIES OF THIS SOFTWARE SHALL BE REGARDED AS BE CONSTRUED AND 40 // CONTROLLED BY JAPANESE LAWS, AND YOU MUST FURTHER CONSENT TO EXCLUSIVE 41 // JURISDICTION AND VENUE IN THE COURTS SITTING IN TOKYO, JAPAN. YOU MUST WAIVE 42 // ALL DEFENSES OF LACK OF PERSONAL JURISDICTION AND FORUM NON CONVENIENS. 43 // PROCESS MAY BE SERVED ON EITHER PARTY IN THE MANNER AUTHORIZED BY APPLICABLE 44 // LAW OR COURT RULE. 45 // 46 // USE ONLY IN JAPAN. DO NOT USE THIS SOFTWARE IN ANOTHER COUNTRY UNLESS YOU HAVE 47 // A CONFIRMATION THAT THIS SOFTWARE DOES NOT VIOLATE ANY CRIMINAL LAWS OR CIVIL 48 // RIGHTS IN THAT PARTICULAR COUNTRY. USING THIS SOFTWARE IN OTHER COUNTRIES IS 49 // COMPLETELY AT YOUR OWN RISK. THE SOFTETHER VPN PROJECT HAS DEVELOPED AND 50 // DISTRIBUTED THIS SOFTWARE TO COMPLY ONLY WITH THE JAPANESE LAWS AND EXISTING 51 // CIVIL RIGHTS INCLUDING PATENTS WHICH ARE SUBJECTS APPLY IN JAPAN. OTHER 52 // COUNTRIES' LAWS OR CIVIL RIGHTS ARE NONE OF OUR CONCERNS NOR RESPONSIBILITIES. 53 // WE HAVE NEVER INVESTIGATED ANY CRIMINAL REGULATIONS, CIVIL LAWS OR 54 // INTELLECTUAL PROPERTY RIGHTS INCLUDING PATENTS IN ANY OF OTHER 200+ COUNTRIES 55 // AND TERRITORIES. BY NATURE, THERE ARE 200+ REGIONS IN THE WORLD, WITH 56 // DIFFERENT LAWS. IT IS IMPOSSIBLE TO VERIFY EVERY COUNTRIES' LAWS, REGULATIONS 57 // AND CIVIL RIGHTS TO MAKE THE SOFTWARE COMPLY WITH ALL COUNTRIES' LAWS BY THE 58 // PROJECT. EVEN IF YOU WILL BE SUED BY A PRIVATE ENTITY OR BE DAMAGED BY A 59 // PUBLIC SERVANT IN YOUR COUNTRY, THE DEVELOPERS OF THIS SOFTWARE WILL NEVER BE 60 // LIABLE TO RECOVER OR COMPENSATE SUCH DAMAGES, CRIMINAL OR CIVIL 61 // RESPONSIBILITIES. NOTE THAT THIS LINE IS NOT LICENSE RESTRICTION BUT JUST A 62 // STATEMENT FOR WARNING AND DISCLAIMER. 63 // 64 // READ AND UNDERSTAND THE 'WARNING.TXT' FILE BEFORE USING THIS SOFTWARE. 65 // SOME SOFTWARE PROGRAMS FROM THIRD PARTIES ARE INCLUDED ON THIS SOFTWARE WITH 66 // LICENSE CONDITIONS WHICH ARE DESCRIBED ON THE 'THIRD_PARTY.TXT' FILE. 67 // 68 // 69 // SOURCE CODE CONTRIBUTION 70 // ------------------------ 71 // 72 // Your contribution to SoftEther VPN Project is much appreciated. 73 // Please send patches to us through GitHub. 74 // Read the SoftEther VPN Patch Acceptance Policy in advance: 75 // http://www.softether.org/5-download/src/9.patch 76 // 77 // 78 // DEAR SECURITY EXPERTS 79 // --------------------- 80 // 81 // If you find a bug or a security vulnerability please kindly inform us 82 // about the problem immediately so that we can fix the security problem 83 // to protect a lot of users around the world as soon as possible. 84 // 85 // Our e-mail address for security reports is: 86 // softether-vpn-security [at] softether.org 87 // 88 // Please note that the above e-mail address is not a technical support 89 // inquiry address. If you need technical assistance, please visit 90 // http://www.softether.org/ and ask your question on the users forum. 91 // 92 // Thank you for your cooperation. 93 // 94 // 95 // NO MEMORY OR RESOURCE LEAKS 96 // --------------------------- 97 // 98 // The memory-leaks and resource-leaks verification under the stress 99 // test has been passed before release this source code. 100 101 102 // Link.h 103 // Header of Link.c 104 105 #ifndef LINK_H 106 #define LINK_H 107 108 struct LINK 109 { 110 bool Started; // Running flag 111 volatile bool Halting; // Halting flag 112 bool Offline; // Offline 113 bool NoOnline; // Do not set to online flag 114 REF *ref; // Reference counter 115 LOCK *lock; // Lock 116 CEDAR *Cedar; // Cedar 117 HUB *Hub; // HUB 118 SESSION *ClientSession; // Client session 119 SESSION *ServerSession; // Server session 120 CLIENT_OPTION *Option; // Client Option 121 CLIENT_AUTH *Auth; // Authentication data 122 POLICY *Policy; // Policy 123 QUEUE *SendPacketQueue; // Transmission packet queue 124 UINT CurrentSendPacketQueueSize; // Current send packet queue size 125 UINT LastError; // Last error 126 bool CheckServerCert; // To check the server certificate 127 X *ServerCert; // Server certificate 128 bool LockFlag; // Lock flag 129 bool *StopAllLinkFlag; // Stop all link flag 130 UINT LastServerConnectionReceivedBlocksNum; // Last server connection recv queue num 131 UINT Flag1; 132 }; 133 134 135 PACKET_ADAPTER *LinkGetPacketAdapter(); 136 bool LinkPaInit(SESSION *s); 137 CANCEL *LinkPaGetCancel(SESSION *s); 138 UINT LinkPaGetNextPacket(SESSION *s, void **data); 139 bool LinkPaPutPacket(SESSION *s, void *data, UINT size); 140 void LinkPaFree(SESSION *s); 141 142 void LinkServerSessionThread(THREAD *t, void *param); 143 LINK *NewLink(CEDAR *cedar, HUB *hub, CLIENT_OPTION *option, CLIENT_AUTH *auth, POLICY *policy); 144 void StartLink(LINK *k); 145 void StopLink(LINK *k); 146 void DelLink(HUB *hub, LINK *k); 147 void LockLink(LINK *k); 148 void UnlockLink(LINK *k); 149 void StopAllLink(HUB *h); 150 void StartAllLink(HUB *h); 151 void SetLinkOnline(LINK *k); 152 void SetLinkOffline(LINK *k); 153 void ReleaseLink(LINK *k); 154 void CleanupLink(LINK *k); 155 void ReleaseAllLink(HUB *h); 156 void NormalizeLinkPolicy(POLICY *p); 157 158 #endif // LINK_H 159 160 161 162 163