mirror of
https://github.com/SoftEtherVPN/SoftEtherVPN.git
synced 2024-11-26 19:39:53 +03:00
7de986dcca
Buffer overread in ParseL2TPPacket() Memory corruption in IcmpParseResult Missing bounds check in ParseUDP() can lead to invalid memory access Out-of-bounds read in IPsec_PPP.c (unterminated string buffer) Overlapping parameters to memcpy() via StrToIp6() PACK ReadValue() crash vulnerability Potential use of uninitialized memory via IPToInAddr6() 4 memory leaks. While the amount of leakage is very small per time, these bugs can finally cause process crash by out of memory. So these bugs must be fixed. Memory leak in NnReadDnsRecord Memory leak in RadiusLogin() Memory leak via ParsePacketIPv4WithDummyMacHeader Remote memory leak in OpenVPN server code 1 coding improvement. This is not a bug, however, I fixed the code to avoid furture misunderstanding. RecvAll can return success on failure (leading to use of uninitialized memory) Contributors for this bugfix: - Max Planck Institute for Molecular Genetics - Guido Vranken
256 lines
11 KiB
C
256 lines
11 KiB
C
// SoftEther VPN Source Code - Developer Edition Master Branch
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// Mayaqua Kernel
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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) Daiyuu Nobori.
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// Copyright (c) SoftEther VPN Project, University of Tsukuba, Japan.
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// Copyright (c) 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, Ph.D.
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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
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// modify it under the terms of the GNU General Public License
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// version 2 as published by the Free Software Foundation.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License version 2
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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// CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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// TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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// SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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// THE LICENSE AGREEMENT IS ATTACHED ON THE SOURCE-CODE PACKAGE
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// AS "LICENSE.TXT" FILE. READ THE TEXT FILE IN ADVANCE TO USE THE SOFTWARE.
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//
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//
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// THIS SOFTWARE IS DEVELOPED IN JAPAN, AND DISTRIBUTED FROM JAPAN,
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// UNDER JAPANESE LAWS. YOU MUST AGREE IN ADVANCE TO USE, COPY, MODIFY,
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// MERGE, PUBLISH, DISTRIBUTE, SUBLICENSE, AND/OR SELL COPIES OF THIS
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// SOFTWARE, THAT ANY JURIDICAL DISPUTES WHICH ARE CONCERNED TO THIS
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// SOFTWARE OR ITS CONTENTS, AGAINST US (SOFTETHER PROJECT, SOFTETHER
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// CORPORATION, DAIYUU NOBORI OR OTHER SUPPLIERS), OR ANY JURIDICAL
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// DISPUTES AGAINST US WHICH ARE CAUSED BY ANY KIND OF USING, COPYING,
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// MODIFYING, MERGING, PUBLISHING, DISTRIBUTING, SUBLICENSING, AND/OR
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// SELLING COPIES OF THIS SOFTWARE SHALL BE REGARDED AS BE CONSTRUED AND
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// CONTROLLED BY JAPANESE LAWS, AND YOU MUST FURTHER CONSENT TO
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// EXCLUSIVE JURISDICTION AND VENUE IN THE COURTS SITTING IN TOKYO,
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// JAPAN. YOU MUST WAIVE ALL DEFENSES OF LACK OF PERSONAL JURISDICTION
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// AND FORUM NON CONVENIENS. PROCESS MAY BE SERVED ON EITHER PARTY IN
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// THE MANNER AUTHORIZED BY APPLICABLE LAW OR COURT RULE.
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//
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// USE ONLY IN JAPAN. DO NOT USE THIS SOFTWARE IN ANOTHER COUNTRY UNLESS
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// YOU HAVE A CONFIRMATION THAT THIS SOFTWARE DOES NOT VIOLATE ANY
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// CRIMINAL LAWS OR CIVIL RIGHTS IN THAT PARTICULAR COUNTRY. USING THIS
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// SOFTWARE IN OTHER COUNTRIES IS COMPLETELY AT YOUR OWN RISK. THE
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// SOFTETHER VPN PROJECT HAS DEVELOPED AND DISTRIBUTED THIS SOFTWARE TO
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// COMPLY ONLY WITH THE JAPANESE LAWS AND EXISTING CIVIL RIGHTS INCLUDING
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// PATENTS WHICH ARE SUBJECTS APPLY IN JAPAN. OTHER COUNTRIES' LAWS OR
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// CIVIL RIGHTS ARE NONE OF OUR CONCERNS NOR RESPONSIBILITIES. WE HAVE
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// NEVER INVESTIGATED ANY CRIMINAL REGULATIONS, CIVIL LAWS OR
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// INTELLECTUAL PROPERTY RIGHTS INCLUDING PATENTS IN ANY OF OTHER 200+
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// COUNTRIES AND TERRITORIES. BY NATURE, THERE ARE 200+ REGIONS IN THE
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// WORLD, WITH DIFFERENT LAWS. IT IS IMPOSSIBLE TO VERIFY EVERY
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// COUNTRIES' LAWS, REGULATIONS AND CIVIL RIGHTS TO MAKE THE SOFTWARE
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// COMPLY WITH ALL COUNTRIES' LAWS BY THE PROJECT. EVEN IF YOU WILL BE
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// SUED BY A PRIVATE ENTITY OR BE DAMAGED BY A PUBLIC SERVANT IN YOUR
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// COUNTRY, THE DEVELOPERS OF THIS SOFTWARE WILL NEVER BE LIABLE TO
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// RECOVER OR COMPENSATE SUCH DAMAGES, CRIMINAL OR CIVIL
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// RESPONSIBILITIES. NOTE THAT THIS LINE IS NOT LICENSE RESTRICTION BUT
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// JUST A STATEMENT FOR WARNING AND DISCLAIMER.
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//
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//
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// SOURCE CODE CONTRIBUTION
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// ------------------------
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//
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// Your contribution to SoftEther VPN Project is much appreciated.
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// Please send patches to us through GitHub.
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// Read the SoftEther VPN Patch Acceptance Policy in advance:
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// http://www.softether.org/5-download/src/9.patch
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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
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// about the problem immediately so that we can fix the security problem
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// to protect a lot of users around the world as soon as possible.
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//
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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
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// 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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//
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// NO MEMORY OR RESOURCE LEAKS
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// ---------------------------
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//
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// The memory-leaks and resource-leaks verification under the stress
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// test has been passed before release this source code.
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// Str.h
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// Header of Str.c
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#ifndef STR_H
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#define STR_H
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// String token
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struct TOKEN_LIST
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{
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UINT NumTokens;
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char **Token;
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};
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// INI_ENTRY
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struct INI_ENTRY
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{
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char *Key;
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char *Value;
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wchar_t *UnicodeValue;
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};
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// Function prototype
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UINT StrLen(char *str);
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UINT StrSize(char *str);
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bool StrCheckLen(char *str, UINT len);
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bool StrCheckSize(char *str, UINT size);
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UINT StrCpy(char *dst, UINT size, char *src);
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UINT StrCpyAllowOverlap(char *dst, UINT size, char *src);
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UINT StrCat(char *dst, UINT size, char *src);
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UINT StrCatLeft(char *dst, UINT size, char *src);
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char ToLower(char c);
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char ToUpper(char c);
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void StrUpper(char *str);
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void StrLower(char *str);
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int StrCmp(char *str1, char *str2);
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int StrCmpi(char *str1, char *str2);
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void FormatArgs(char *buf, UINT size, char *fmt, va_list args);
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void Format(char *buf, UINT size, char *fmt, ...);
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char *CopyFormat(char *fmt, ...);
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void Print(char *fmt, ...);
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void PrintArgs(char *fmt, va_list args);
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void PrintStr(char *str);
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void Debug(char *fmt, ...);
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void DebugArgs(char *fmt, va_list args);
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UINT ToInt(char *str);
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bool ToBool(char *str);
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int ToInti(char *str);
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void ToStr(char *str, UINT i);
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void ToStri(char *str, int i);
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void ToStrx(char *str, UINT i);
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void ToStrx8(char *str, UINT i);
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void TrimCrlf(char *str);
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void Trim(char *str);
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void TrimRight(char *str);
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void TrimLeft(char *str);
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bool GetLine(char *str, UINT size);
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void FreeToken(TOKEN_LIST *tokens);
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bool IsInToken(TOKEN_LIST *t, char *str);
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TOKEN_LIST *ParseToken(char *src, char *separator);
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void InitStringLibrary();
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void FreeStringLibrary();
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bool CheckStringLibrary();
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bool InChar(char *string, char c);
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UINT SearchStrEx(char *string, char *keyword, UINT start, bool case_sensitive);
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UINT SearchStri(char *string, char *keyword, UINT start);
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UINT SearchStr(char *string, char *keyword, UINT start);
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UINT CalcReplaceStrEx(char *string, char *old_keyword, char *new_keyword, bool case_sensitive);
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UINT ReplaceStrEx(char *dst, UINT size, char *string, char *old_keyword, char *new_keyword, bool case_sensitive);
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UINT ReplaceStr(char *dst, UINT size, char *string, char *old_keyword, char *new_keyword);
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UINT ReplaceStri(char *dst, UINT size, char *string, char *old_keyword, char *new_keyword);
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bool IsPrintableAsciiChar(char c);
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bool IsPrintableAsciiStr(char *str);
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void EnPrintableAsciiStr(char *str, char replace);
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bool IsSafeChar(char c);
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bool IsSafeStr(char *str);
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void EnSafeStr(char *str, char replace);
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void TruncateCharFromStr(char *str, char replace);
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char *CopyStr(char *str);
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void BinToStr(char *str, UINT str_size, void *data, UINT data_size);
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void BinToStrW(wchar_t *str, UINT str_size, void *data, UINT data_size);
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void PrintBin(void *data, UINT size);
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bool StartWith(char *str, char *key);
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bool EndWith(char *str, char *key);
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UINT64 ToInt64(char *str);
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void ToStr64(char *str, UINT64 value);
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char *ReplaceFormatStringFor64(char *fmt);
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TOKEN_LIST *ParseCmdLine(char *str);
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TOKEN_LIST *CopyToken(TOKEN_LIST *src);
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TOKEN_LIST *NullToken();
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bool IsNum(char *str);
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LIST *StrToStrList(char *str, UINT size);
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BUF *StrListToStr(LIST *o);
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void FreeStrList(LIST *o);
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TOKEN_LIST *ListToTokenList(LIST *o);
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LIST *TokenListToList(TOKEN_LIST *t);
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bool IsEmptyStr(char *str);
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void BinToStrEx(char *str, UINT str_size, void *data, UINT data_size);
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void BinToStrEx2(char *str, UINT str_size, void *data, UINT data_size, char padding_char);
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char *CopyBinToStrEx(void *data, UINT data_size);
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char *CopyBinToStr(void *data, UINT data_size);
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BUF *StrToBin(char *str);
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void MacToStr(char *str, UINT size, UCHAR *mac_address);
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void ToStr3(char *str, UINT size, UINT64 v);
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void ToStrByte(char *str, UINT size, UINT64 v);
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void ToStrByte1000(char *str, UINT size, UINT64 v);
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TOKEN_LIST *UniqueToken(TOKEN_LIST *t);
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char *NormalizeCrlf(char *str);
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bool IsAllUpperStr(char *str);
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UINT StrWidth(char *str);
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char *MakeCharArray(char c, UINT count);
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void MakeCharArray2(char *str, char c, UINT count);
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bool StrToMac(UCHAR *mac_address, char *str);
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bool IsSplitChar(char c, char *split_str);
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bool GetKeyAndValue(char *str, char *key, UINT key_size, char *value, UINT value_size, char *split_str);
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LIST *ReadIni(BUF *b);
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INI_ENTRY *GetIniEntry(LIST *o, char *key);
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void FreeIni(LIST *o);
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UINT IniIntValue(LIST *o, char *key);
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UINT64 IniInt64Value(LIST *o, char *key);
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char *IniStrValue(LIST *o, char *key);
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wchar_t *IniUniStrValue(LIST *o, char *key);
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bool IniHasValue(LIST *o, char *key);
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bool InStr(char *str, char *keyword);
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bool InStrEx(char *str, char *keyword, bool case_sensitive);
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bool InStrList(char *target_str, char *tokens, char *splitter, bool case_sensitive);
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TOKEN_LIST *ParseTokenWithoutNullStr(char *str, char *split_chars);
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TOKEN_LIST *ParseTokenWithNullStr(char *str, char *split_chars);
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char *DefaultTokenSplitChars();
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bool IsCharInStr(char *str, char c);
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UINT HexTo4Bit(char c);
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char FourBitToHex(UINT value);
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void ToHex(char *str, UINT value);
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void ToHex64(char *str, UINT64 value);
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UINT HexToInt(char *str);
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UINT64 HexToInt64(char *str);
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UINT SearchAsciiInBinary(void *data, UINT size, char *str, bool case_sensitive);
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bool IsStrInStrTokenList(char *str_list, char *str, char *split_chars, bool case_sensitive);
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void IntListToStr(char *str, UINT str_size, LIST *o, char *separate_str);
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LIST *StrToIntList(char *str, bool sorted);
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void NormalizeIntListStr(char *dst, UINT dst_size, char *src, bool sorted, char *separate_str);
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void ClearStr(char *str, UINT str_size);
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void SetStrCaseAccordingToBits(char *str, UINT bits);
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#endif // STR_H
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