This commit adds a protocol interface to the server, its purpose is to manage TCP connections and the various third-party protocols.
More specifically, ProtoHandleConnection() takes care of exchanging the packets between the local and remote endpoint; the protocol implementation only has to parse them and act accordingly.
The interface knows which protocol is the connection for by calling IsPacketForMe(), a function implemented for each protocol.
My previous patch used a wrong if directive, which disabled removed
(de)initialization and threading for LibreSSL. This most likely causes
issues at runtime.
SSL_free() also frees the associated context.
d6c3c1896c/ssl/ssl_lib.c (L1209)
From https://www.openssl.org/docs/man1.1.1/man3/SSL_free.html:
"SSL_free() also calls the free()ing procedures for indirectly affected items, if applicable: the buffering BIO, the read and write BIOs, cipher lists specially created for this ssl, the SSL_SESSION. Do not explicitly free these indirectly freed up items before or after calling SSL_free(), as trying to free things twice may lead to program failure."
found by cppcheck
[src/Mayaqua/Mayaqua.c:753]: (style) Consecutive return, break, continue, goto or throw statements are unnecessary.
[src/Mayaqua/Mayaqua.c:484]: (style) The function 'IsUnicode' is never used.
[src/Mayaqua/Mayaqua.c:438]: (style) The function 'MayaquaDotNetMode' is never used.
[src/Mayaqua/Mayaqua.c:774]: (style) The function 'PrintOsInfo' is never used.
found by cppcheck
[src/Mayaqua/Cfg.c:669]: (style) Variable 'invalid_file' is assigned a value that is never used.
[src/Mayaqua/Cfg.c:2111]: (style) Variable 'v' is assigned a value that is never used.
[src/Mayaqua/Cfg.c:1114]: (style) The function 'CfgFolderToBufText' is never used.
[src/Mayaqua/Cfg.c:539]: (style) The function 'CfgRead' is never used.
[src/Mayaqua/Cfg.c:418]: (style) The function 'CfgSave' is never used.
[src/Mayaqua/Cfg.c:1425]: (style) The function 'CfgStrToType' is never used.
[src/Mayaqua/Cfg.c:708]: (style) The function 'CfgTest' is never used.
[src/Mayaqua/Cfg.c:704]: (style) The function 'CfgTest2' is never used.
[src/Mayaqua/Cfg.c:247]: (style) The function 'NewCfgRwW' is never used.
found by PVS analyzer
src/Mayaqua/Network.c 18715 err V571 Recurring check. The 'if (u->GetNatTIpThread == NULL)' condition was already verified in line 18712.
found by cppcheck
[src/Mayaqua/OS.c:493]: (style) The function 'OSDec32' is never used.
[src/Mayaqua/OS.c:373]: (style) The function 'OSDeleteDir' is never used.
[src/Mayaqua/OS.c:393]: (style) The function 'OSFileCreate' is never used.
[src/Mayaqua/OS.c:353]: (style) The function 'OSFileDelete' is never used.
[src/Mayaqua/OS.c:383]: (style) The function 'OSFileOpen' is never used.
[src/Mayaqua/OS.c:331]: (style) The function 'OSFileRename' is never used.
[src/Mayaqua/OS.c:487]: (style) The function 'OSInc32' is never used.
[src/Mayaqua/OS.c:363]: (style) The function 'OSMakeDir' is never used.
[src/Mayaqua/OS.c:541]: (style) The function 'OSResetEvent' is never used.
This commit fixes the "TrackDeleteObj: 0x12345678 is not Object!!" (where 0x12345678 is the actual address) errors with memcheck enabled.
It also fixes the following related warnings:
warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
TrackChangeObjSize((DWORD)addr, size, (DWORD)new_addr);
^
warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
TrackChangeObjSize((DWORD)addr, size, (DWORD)new_addr);
^
1. ifdef DEBUG -> defined(_DEBUG) || defined(DEBUG)
In VC++ compilers, the macro is "_DEBUG", not "DEBUG".
2. If set memcheck = true, the program will be vitally slow since it will log all malloc() / realloc() / free() calls to find the cause of memory leak.
For normal debug we set memcheck = false.
Please set memcheck = true if you want to test the cause of memory leaks.
This commit improves the RecvFrom() and RecvFrom6() functions by:
- Using the right data type for the struct size variable passed to recvfrom().
- Improving the arguments validation mechanism.
- Printing unhandled errors.
- Hash() has been removed because it was ambiguous, Md5() and Sha0() are proper replacements.
- HMacMd5() and HMacSha1() now share a common implementation handled by the new Internal_HMac() function.
- NewMd() and MdProcess() now support plain hashing (without the key).
- NewMd(), SetMdKey() and MdProcess() now check the OpenSSL functions' return value and in case of failure a debug message is printed along with the error string, if available.
- SetMdKey()'s return value has been changed from void to bool, so that it's possible to know whether the function succeeded or not.
- MdProcess()' return value has been changed from void to UINT (unsigned int) and the function now returns the number of bytes written by HMAC_Final() or EVP_DigestFinal_ex().
found by cppcheck
[src/Mayaqua/Kernel.c:1199]: (style) Variable 'new_thread' is assigned a value that is never used.
[src/Mayaqua/Kernel.c:385]: (style) The function 'DelThreadFromThreadList' is never used.
[src/Mayaqua/Kernel.c:1726]: (style) The function 'GetCurrentLocale' is never used.
[src/Mayaqua/Kernel.c:562]: (style) The function 'GetHomeDir' is never used.
[src/Mayaqua/Kernel.c:1644]: (style) The function 'GetSpanStr' is never used.
[src/Mayaqua/Kernel.c:1695]: (style) The function 'GetSpanStrEx' is never used.
[src/Mayaqua/Kernel.c:950]: (style) The function 'GetTimeStr64' is never used.
[src/Mayaqua/Kernel.c:909]: (style) The function 'GetTimeStrEx64' is never used.
[src/Mayaqua/Kernel.c:1924]: (style) The function 'System64ToTime' is never used.
[src/Mayaqua/Kernel.c:1900]: (style) The function 'TimeToSystem64' is never used.
[src/Mayaqua/Kernel.c:470]: (style) The function 'WaitAllThreadsWillBeStopped' is never used.
[src/Mayaqua/Kernel.c:1478]: (style) The function 'GetTimeStr' is never used.
found by coverity, cppcheck
[src/Mayaqua/Network.c:10599] -> [src/Mayaqua/Network.c:10603]: (style) Variable 'ret' is reassigned a value before the old one has been used.
[src/Mayaqua/Network.c:10611] -> [src/Mayaqua/Network.c:10615]: (style) Variable 'e' is reassigned a value before the old one has been used.
[src/Mayaqua/Network.c:12979]: (style) Variable 'disable_conditional_accept' is assigned a value that is never used.
[src/Mayaqua/Network.c:12167]: (style) Variable 's' is assigned a value that is never used.
[src/Mayaqua/Network.c:12319]: (style) Variable 's' is assigned a value that is never used.
[src/Mayaqua/Network.c:20660]: (style) The function 'HttpSendInvalidHostname' is never used.
[src/Mayaqua/Network.c:6640]: (style) The function 'IsNetworkPrefixAddress6' is never used.
[src/Mayaqua/Network.c:17593]: (style) The function 'ParseIpAndSubnetMask6' is never used.
[src/Mayaqua/Network.c:473]: (style) The function 'SetNatTLowPriority' is never used.
[src/Mayaqua/Network.c:14924]: (style) The function 'SetSocketSendRecvBufferSize' is never used.
[src/Mayaqua/Network.c:6249]: (style) The function 'Win32AcceptCheckCallback_Delay' is never used.
[src/Mayaqua/Network.c:6264]: (style) The function 'Win32Accept_XP' is never used.
[src/Mayaqua/Network.c:7467]: (style) The function 'Win32GetTcpTableList' is never used.
[src/Mayaqua/Network.c:9171]: (style) The function 'Win32NetworkTest' is never used.
[src/Mayaqua/Network.c:6581]: (style) The function 'GetHostAddress6' is never used.
[src/Mayaqua/Network.c:7468]: (style) The function 'Win32GetTcpTableListByAllocateAndGetTcpExTableFromStack' is never used.
[src/Mayaqua/Network.c:7384]: (style) The function 'Win32GetTcpTableListByGetExtendedTcpTable' is never used.
[src/Mayaqua/Network.c:7515]: (style) The function 'Win32GetTcpTableListByGetTcpTable' is never used.
[src/Mayaqua/Network.c:6758]: (style) The function 'IPNot6' is never used.
variables. Found by coverity, cppcheck
[src/Mayaqua/Unix.c:2559]: (style) Unused variable: status
[src/Mayaqua/Unix.c:181]: (style) Redundant condition: select!=NULL. 'select==NULL || (select!=NULL && (*select)(entry))' is equivalent to 'select==NULL || (*select)(entry)'
[src/Mayaqua/Unix.c:1297]: (style) The function 'UnixDaemon' is never used.
[src/Mayaqua/Unix.c:543]: (style) The function 'UnixGetDiskFreeW' is never used.
[src/Mayaqua/Unix.c:834]: (style) The function 'UnixRestoreThreadPriority' is never used.
[src/Mayaqua/Unix.c:816]: (style) The function 'UnixSetThreadPriorityHigh' is never used.
[src/Mayaqua/Unix.c:825]: (style) The function 'UnixSetThreadPriorityIdle' is never used.
[src/Mayaqua/Unix.c:807]: (style) The function 'UnixSetThreadPriorityLow' is never used.
[src/Mayaqua/Unix.c:2805]: (style) The function 'UnixWaitProcess' is never used.
found by coverity, cppcheck
[src/Mayaqua/TcpIp.c:578]: (style) Variable 'tcp_size' is assigned a value that is never used.
[src/Mayaqua/TcpIp.c:1034]: (style) Variable 'has_vlan_tag' is assigned a value that is never used.
[src/Mayaqua/TcpIp.c:1996]: (style) Variable 'tcp_header_size' is assigned a value that is never used.
[src/Mayaqua/TcpIp.c:127]: (style) The function 'IcmpEchoSend' is never used.
[src/Mayaqua/TcpIp.c:2194]: (style) The function 'ParsePacketL2' is never used.
[src/Mayaqua/TcpIp.c:251]: (style) The function 'IcmpEchoSendBySocket' is never used.
[src/Mayaqua/Str.c:3019]: (style) The function 'CopyFormat' is never used.
[src/Mayaqua/Str.c:280]: (style) The function 'HexToInt64' is never used.
[src/Mayaqua/Str.c:2448]: (style) The function 'InChar' is never used.
[src/Mayaqua/Str.c:745]: (style) The function 'IniHasValue' is never used.
[src/Mayaqua/Str.c:692]: (style) The function 'IniInt64Value' is never used.
[src/Mayaqua/Str.c:726]: (style) The function 'IniUniStrValue' is never used.
[src/Mayaqua/Str.c:2138]: (style) The function 'IsPrintableAsciiStr' is never used.
[src/Mayaqua/Str.c:1045]: (style) The function 'NormalizeCrlf' is never used.
[src/Mayaqua/Str.c:2899]: (style) The function 'ReplaceFormatStringFor64' is never used.
[src/Mayaqua/Str.c:2442]: (style) The function 'SearchStri' is never used.
[src/Mayaqua/Str.c:3345]: (style) The function 'StrCheckSize' is never used.
[src/Mayaqua/Str.c:1386]: (style) The function 'StrListToStr' is never used.
[src/Mayaqua/Str.c:348]: (style) The function 'ToHex64' is never used.
[src/Mayaqua/Str.c:2803]: (style) The function 'ToStri' is never used.
[src/Mayaqua/Str.c:2797]: (style) The function 'ToStrx' is never used.
[src/Mayaqua/Str.c:2791]: (style) The function 'ToStrx8' is never used.
[src/Mayaqua/Str.c:1325]: (style) The function 'TokenListToList' is never used.
/builds/SoftEther/SoftEtherVPN/src/Mayaqua/Encrypt.c: In function 'RsaCheck':
/builds/SoftEther/SoftEtherVPN/src/Mayaqua/Encrypt.c:2307:3: warning: 'RSA_generate_key' is deprecated [-Wdeprecated-declarations]
rsa = RSA_generate_key(bit, RSA_F4, NULL, NULL);
^~~
In file included from /usr/include/openssl/rsa.h:13:0,
from /usr/include/openssl/x509.h:31,
from /usr/include/openssl/ssl.h:50,
from /builds/SoftEther/SoftEtherVPN/src/Mayaqua/Encrypt.c:127:
/usr/include/openssl/rsa.h:193:1: note: declared here
DEPRECATEDIN_0_9_8(RSA *RSA_generate_key(int bits, unsigned long e, void
^
/builds/SoftEther/SoftEtherVPN/src/Mayaqua/Encrypt.c: In function 'RsaGen':
/builds/SoftEther/SoftEtherVPN/src/Mayaqua/Encrypt.c:2377:3: warning: 'RSA_generate_key' is deprecated [-Wdeprecated-declarations]
rsa = RSA_generate_key(bit, RSA_F4, NULL, NULL);
^~~
In file included from /usr/include/openssl/rsa.h:13:0,
from /usr/include/openssl/x509.h:31,
from /usr/include/openssl/ssl.h:50,
from /builds/SoftEther/SoftEtherVPN/src/Mayaqua/Encrypt.c:127:
/usr/include/openssl/rsa.h:193:1: note: declared here
DEPRECATEDIN_0_9_8(RSA *RSA_generate_key(int bits, unsigned long e, void
^
/builds/SoftEther/SoftEtherVPN/src/Mayaqua/Encrypt.c: In function 'X509ToX':
/builds/SoftEther/SoftEtherVPN/src/Mayaqua/Encrypt.c:3435:7: warning: 'ASN1_STRING_data' is deprecated [-Wdeprecated-declarations]
char *uri = (char *)ASN1_STRING_data(ad->location->d.uniformResourceIdentifier);
^~~~
In file included from /usr/include/openssl/bn.h:31:0,
from /usr/include/openssl/asn1.h:24,
from /usr/include/openssl/objects.h:916,
from /usr/include/openssl/evp.h:27,
from /usr/include/openssl/x509.h:23,
from /usr/include/openssl/ssl.h:50,
from /builds/SoftEther/SoftEtherVPN/src/Mayaqua/Encrypt.c:127:
/usr/include/openssl/asn1.h:553:1: note: declared here
DEPRECATEDIN_1_1_0(unsigned char *ASN1_STRING_data(ASN1_STRING *x))
^
/builds/SoftEther/SoftEtherVPN/src/Mayaqua/Encrypt.c: In function 'FreeOpenSSLThreadState':
/builds/SoftEther/SoftEtherVPN/src/Mayaqua/Encrypt.c:3643:2: warning: 'ERR_remove_state' is deprecated [-Wdeprecated-declarations]
ERR_remove_state(0);
^~~~~~~~~~~~~~~~
In file included from /usr/include/openssl/ct.h:13:0,
from /usr/include/openssl/ssl.h:61,
from /builds/SoftEther/SoftEtherVPN/src/Mayaqua/Encrypt.c:127:
/usr/include/openssl/err.h:248:1: note: declared here
DEPRECATEDIN_1_0_0(void ERR_remove_state(unsigned long pid))
^
Internat.c: fix iconv() with musl by removing unrecognized EUCJP encoding
src/CMakeFiles.txt: recognize USE_MUSL=YES environment variable to compile with musl
[src/Mayaqua/FileIO.c:2299]: (style) The function 'ConvertPath' is never used.
[src/Mayaqua/FileIO.c:728]: (style) The function 'ConvertSafeFileNameW' is never used.
[src/Mayaqua/FileIO.c:2359]: (style) The function 'DeleteDirInner' is never used.
[src/Mayaqua/FileIO.c:2232]: (style) The function 'FileCloseAndDelete' is never used.
[src/Mayaqua/FileIO.c:2748]: (style) The function 'FileCreateInner' is never used.
[src/Mayaqua/FileIO.c:2537]: (style) The function 'FileDeleteInner' is never used.
[src/Mayaqua/FileIO.c:2858]: (style) The function 'FileOpenInner' is never used.
[src/Mayaqua/FileIO.c:2276]: (style) The function 'FileRenameInner' is never used.
[src/Mayaqua/FileIO.c:680]: (style) The function 'FileReplaceRename' is never used.
[src/Mayaqua/FileIO.c:2581]: (style) The function 'FileSizeEx' is never used.
[src/Mayaqua/FileIO.c:2812]: (style) The function 'FileWriteAll' is never used.
[src/Mayaqua/FileIO.c:1992]: (style) The function 'GetCurrentDir' is never used.
[src/Mayaqua/FileIO.c:765]: (style) The function 'GetDiskFreeW' is never used.
[src/Mayaqua/FileIO.c:1852]: (style) The function 'IsFileExistsInner' is never used.
[src/Mayaqua/FileIO.c:235]: (style) The function 'IsFileWriteLocked' is never used.
[src/Mayaqua/FileIO.c:2494]: (style) The function 'MakeDirInner' is never used.
[src/Mayaqua/FileIO.c:1568]: (style) The function 'MakeSafeFileNameW' is never used.
[src/Mayaqua/FileIO.c:1941]: (style) The function 'ParseSplitedPath' is never used.
[src/Mayaqua/FileIO.c:995]: (style) The function 'SafeFileNameW' is never used.
[src/Mayaqua/FileIO.c:2369]: (style) The function 'FileSizeExW' is never used.
[src/Mayaqua/FileIO.c:1848]: (style) The function 'GetCurrentDirW' is never used.
