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SslCat.cpp
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// ========================================================================================================================
// SslCat
//
// Copyright ©2007-2008 Liam Kirton <[email protected]>
// ========================================================================================================================
// SslCat.cpp
//
// Created: 31/05/2007
// ========================================================================================================================
#define SECURITY_WIN32
#include <winsock2.h>
#include <windows.h>
#include <schnlsp.h>
#include <security.h>
#include <algorithm>
#include <iostream>
#include <string>
// ========================================================================================================================
const char *c_SslCatVersion = "0.2.1";
// ========================================================================================================================
BOOL WINAPI ConsoleCtrlHandler(DWORD dwCtrlType);
DWORD WINAPI ConsoleThreadProc(LPVOID lpParameter);
void InitiateHandshake(char *buffer, unsigned int length);
void ContinueHandshake(char *buffer, unsigned int length);
void GetNewClientCredentials();
void PrintConnectionInformation();
void PrintUsage();
void Recv(char *buffer, unsigned int length);
void Send(char *buffer, unsigned int length);
// ========================================================================================================================
HANDLE g_hExitEvent = NULL;
HANDLE g_hConsoleThread = NULL;
CRITICAL_SECTION g_ConsoleCriticalSection;
unsigned int g_Ip = 0;
unsigned short g_Port = 0;
SOCKET g_hAcceptSocket = INVALID_SOCKET;
SOCKET g_hSocket = INVALID_SOCKET;
SCHANNEL_CRED g_sChannelCred;
CredHandle g_hCreds;
CtxtHandle g_hContext;
HCERTSTORE g_hMyCertStore = NULL;
HANDLE g_SendBufferMutex = NULL;
char *g_SendBuffer;
unsigned int g_SendBufferCount;
unsigned int g_SendBufferSize;
char *g_ExtraBuffer;
unsigned int g_ExtraBufferCount;
bool g_bSslHandshakeInitiated = false;
bool g_bSslHandshakeComplete = false;
bool g_bListen = false;
bool g_bVerbose = false;
// ========================================================================================================================
int main(int argc, char *argv[])
{
std::cout << std::endl
<< "SslCat " << c_SslCatVersion << std::endl
<< "Copyright \xB8" << "2007-2008 Liam Kirton <[email protected]>" << std::endl
<< std::endl
<< "Built at " << __TIME__ << " on " << __DATE__ << std::endl << std::endl;
DWORD dwProtocol = 0;
DWORD dwCipher = 0;
try
{
for(int i = 1; i < argc; ++i)
{
std::string cmd = argv[i];
std::transform(cmd.begin(), cmd.end(), cmd.begin(), ::tolower);
if((cmd == "/target") && ((i + 1) < argc))
{
g_Ip = inet_addr(argv[++i]);
}
else if((cmd == "/port") && ((i + 1) < argc))
{
g_Port = static_cast<unsigned short>(strtol(argv[++i], NULL, 10));
}
else if(cmd == "/ssl2")
{
dwProtocol |= SP_PROT_SSL2;
}
else if(cmd == "/ssl3")
{
dwProtocol |= SP_PROT_SSL3;
}
else if(cmd == "/tls1")
{
dwProtocol |= SP_PROT_TLS1;
}
else if((cmd == "/cipher") && ((i + 1) < argc))
{
dwCipher = strtol(argv[++i], NULL, 10);
}
else if(cmd == "/listen")
{
g_bListen = true;
}
else if(cmd == "/verbose")
{
g_bVerbose = true;
}
else
{
throw std::exception("Unknown Command.");
}
}
if(((g_Ip == 0) && !g_bListen) || (g_Port == 0))
{
throw std::exception("Either /Target & /Port or /Port & /Listen Required.");
}
}
catch(const std::exception &e)
{
PrintUsage();
std::cout << "Error: " << e.what() << std::endl;
return -1;
}
WSADATA wsaData;
if(WSAStartup(MAKEWORD(2, 2), &wsaData) != 0)
{
std::cout << "Fatal Error: WSAStartup() Failed." << std::endl;
return -1;
}
InitializeCriticalSection(&g_ConsoleCriticalSection);
SetConsoleCtrlHandler(ConsoleCtrlHandler, TRUE);
if((g_hExitEvent = CreateEvent(NULL, TRUE, FALSE, NULL)) == NULL)
{
throw std::exception("CreateEvent() Failed.");
}
if((g_SendBufferMutex = CreateMutex(NULL, FALSE, NULL)) == NULL)
{
throw std::exception("CreateMutex() Failed.");
}
g_SendBufferSize = 1024;
g_SendBufferCount = 0;
g_SendBuffer = new char[g_SendBufferSize];
if((g_hConsoleThread = CreateThread(NULL, 0, ConsoleThreadProc, NULL, 0, NULL)) == NULL)
{
throw std::exception("CreateThread() Failed.");
}
do
{
try
{
SecureZeroMemory(&g_hCreds, sizeof(CredHandle));
SecureZeroMemory(&g_hContext, sizeof(CtxtHandle));
SecureZeroMemory(&g_sChannelCred, sizeof(SCHANNEL_CRED));
g_sChannelCred.dwVersion = SCHANNEL_CRED_VERSION;
g_sChannelCred.dwFlags |= SCH_CRED_NO_DEFAULT_CREDS | SCH_CRED_MANUAL_CRED_VALIDATION;
g_sChannelCred.dwMaximumCipherStrength = dwCipher;
g_sChannelCred.grbitEnabledProtocols = dwProtocol;
PCCERT_CONTEXT pCertContext = NULL;
if(g_bListen)
{
g_hMyCertStore = CertOpenStore(CERT_STORE_PROV_SYSTEM,
X509_ASN_ENCODING,
0,
CERT_SYSTEM_STORE_LOCAL_MACHINE,
L"MY");
if(g_hMyCertStore == NULL)
{
throw std::exception("CertOpenStore() Failed.");
}
pCertContext = CertFindCertificateInStore(g_hMyCertStore,
X509_ASN_ENCODING,
0,
CERT_FIND_SUBJECT_STR_A,
L"SslCat",
NULL);
if(pCertContext == NULL)
{
throw std::exception("CertFindCertificateInStore() Failed.");
}
g_sChannelCred.cCreds = 1;
g_sChannelCred.paCred = &pCertContext;
}
if(AcquireCredentialsHandle(NULL,
UNISP_NAME,
g_bListen ? SECPKG_CRED_INBOUND : SECPKG_CRED_OUTBOUND,
NULL,
&g_sChannelCred,
NULL,
NULL,
&g_hCreds,
NULL) != SEC_E_OK)
{
throw std::exception("AcquireCredentialsHandle() Failed.");
}
if(pCertContext != NULL)
{
CertFreeCertificateContext(pCertContext);
pCertContext = NULL;
}
g_hAcceptSocket = INVALID_SOCKET;
g_hSocket = INVALID_SOCKET;
g_bSslHandshakeInitiated = false;
g_bSslHandshakeComplete = false;
g_ExtraBuffer = NULL;
g_ExtraBufferCount = 0;
if((g_hSocket = WSASocket(AF_INET, SOCK_STREAM, IPPROTO_TCP, NULL, 0, 0)) == INVALID_SOCKET)
{
throw std::exception("WSASocket() Failed.");
}
sockaddr_in sockAddrInBind;
sockAddrInBind.sin_family = AF_INET;
sockAddrInBind.sin_addr.s_addr = htonl(INADDR_ANY);
sockAddrInBind.sin_port = g_bListen ? htons(g_Port) : htons(0);
if(bind(g_hSocket, reinterpret_cast<sockaddr *>(&sockAddrInBind), sizeof(sockaddr_in)) == SOCKET_ERROR)
{
throw std::exception("bind() Failed.");
}
if(g_bListen)
{
g_hAcceptSocket = g_hSocket;
g_hSocket = INVALID_SOCKET;
if(listen(g_hAcceptSocket, 0) == SOCKET_ERROR)
{
throw std::exception("listen() Failed.");
}
}
else
{
sockaddr_in sockAddrInConnect;
SecureZeroMemory(&sockAddrInConnect, sizeof(sockaddr_in));
sockAddrInConnect.sin_family = AF_INET;
sockAddrInConnect.sin_port = htons(g_Port);
sockAddrInConnect.sin_addr.s_addr = g_Ip;
if(connect(g_hSocket, reinterpret_cast<const sockaddr *>(&sockAddrInConnect), sizeof(sockaddr_in)) == SOCKET_ERROR)
{
throw std::exception("connect() Failed.");
}
InitiateHandshake(NULL, 0);
}
while(WaitForSingleObject(g_hExitEvent, 0) != WAIT_OBJECT_0)
{
char buffer[65535];
SecureZeroMemory(&buffer, sizeof(buffer));
int bytesRecvd = 0;
fd_set readSet;
FD_ZERO(&readSet);
FD_SET((g_hSocket != INVALID_SOCKET) ? g_hSocket : g_hAcceptSocket, &readSet);
timeval timeout = {0, 100};
switch(select(0, &readSet, NULL, NULL, &timeout))
{
case 1:
if(g_hSocket == INVALID_SOCKET)
{
sockaddr_in sockAddrInAccept;
int sockAddrInAcceptSize = sizeof(sockaddr_in);
SecureZeroMemory(&sockAddrInAccept, sizeof(sockaddr_in));
if((g_hSocket = accept(g_hAcceptSocket, reinterpret_cast<sockaddr *>(&sockAddrInAccept), &sockAddrInAcceptSize)) == SOCKET_ERROR)
{
throw std::exception("listen() Failed.");
}
std::cout << "Host "
<< (sockAddrInAccept.sin_addr.S_un.S_addr & 0x000000FF) << "."
<< ((sockAddrInAccept.sin_addr.S_un.S_addr & 0x0000FF00) >> 8) << "."
<< ((sockAddrInAccept.sin_addr.S_un.S_addr & 0x00FF0000) >> 16) << "."
<< ((sockAddrInAccept.sin_addr.S_un.S_addr & 0xFF000000) >> 24) << ":"
<< ntohs(sockAddrInAccept.sin_port) << " Connected." << std::endl << std::endl;
}
else
{
bytesRecvd = recv(g_hSocket, reinterpret_cast<char *>(&buffer), sizeof(buffer), 0);
if(bytesRecvd <= 0)
{
throw std::exception("Disconnected.");
}
else
{
Recv(reinterpret_cast<char *>(&buffer), bytesRecvd);
}
}
break;
case SOCKET_ERROR:
throw std::exception("select() Failed.");
}
if((g_bSslHandshakeComplete) && (g_SendBufferCount > 0))
{
WaitForSingleObject(g_SendBufferMutex, INFINITE);
unsigned int tmpSendBufferSize = g_SendBufferCount;
char *tmpSendBuffer = new char[g_SendBufferCount];
RtlCopyMemory(tmpSendBuffer, g_SendBuffer, tmpSendBufferSize);
SecureZeroMemory(g_SendBuffer, g_SendBufferSize);
g_SendBufferCount = 0;
ReleaseMutex(g_SendBufferMutex);
EnterCriticalSection(&g_ConsoleCriticalSection);
for(unsigned int i = 0; i < tmpSendBufferSize; ++i)
{
std::cout << tmpSendBuffer[i] << std::flush;
}
LeaveCriticalSection(&g_ConsoleCriticalSection);
Send(tmpSendBuffer, tmpSendBufferSize);
delete [] tmpSendBuffer;
}
}
}
catch(const std::exception &e)
{
std::cout << std::endl << "Caught Exception: " << e.what() << std::endl << std::endl;
}
if(g_hAcceptSocket != INVALID_SOCKET)
{
closesocket(g_hAcceptSocket);
g_hSocket = INVALID_SOCKET;
}
if(g_hSocket != INVALID_SOCKET)
{
closesocket(g_hSocket);
g_hSocket = INVALID_SOCKET;
}
DeleteSecurityContext(&g_hContext);
FreeCredentialsHandle(&g_hCreds);
if(g_hMyCertStore != NULL)
{
CertCloseStore(g_hMyCertStore, 0);
g_hMyCertStore = NULL;
}
delete [] g_ExtraBuffer;
g_ExtraBuffer = NULL;
g_ExtraBufferCount = 0;
}
while(g_bListen && (WaitForSingleObject(g_hExitEvent, 0) != WAIT_OBJECT_0));
WSACleanup();
SetConsoleCtrlHandler(ConsoleCtrlHandler, FALSE);
DeleteCriticalSection(&g_ConsoleCriticalSection);
return 0;
}
// ========================================================================================================================
BOOL WINAPI ConsoleCtrlHandler(DWORD dwCtrlType)
{
SetEvent(g_hExitEvent);
return TRUE;
}
// ========================================================================================================================
DWORD WINAPI ConsoleThreadProc(LPVOID lpParameter)
{
HANDLE hStdInput = GetStdHandle(STD_INPUT_HANDLE);
INPUT_RECORD testInputRecord;
DWORD dwTestInputRecordCount;
if(PeekConsoleInput(hStdInput, &testInputRecord, 1, &dwTestInputRecordCount) == 0)
{
if(ReadFile(hStdInput, g_SendBuffer, g_SendBufferSize, reinterpret_cast<LPDWORD>(&g_SendBufferCount), NULL) == 0)
{
std::cout << std::endl << "Fatal Error: ReadFile() Failed." << std::endl;
SetEvent(g_hExitEvent);
return -1;
}
CloseHandle(hStdInput);
if((hStdInput = CreateFile(L"CONIN$", GENERIC_READ, FILE_SHARE_READ, NULL, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL)) == INVALID_HANDLE_VALUE)
{
std::cout << std::endl << "Fatal Error: CreateFile(\"CONIN$\") Failed." << std::endl;
SetEvent(g_hExitEvent);
return -1;
}
}
SetConsoleMode(hStdInput, ENABLE_PROCESSED_INPUT | ENABLE_LINE_INPUT);
while(WaitForSingleObject(g_hExitEvent, 0) != WAIT_OBJECT_0)
{
if(WaitForSingleObject(hStdInput, 0) == WAIT_OBJECT_0)
{
INPUT_RECORD inputRecord[1024];
DWORD dwEventsRead;
if(ReadConsoleInput(hStdInput, reinterpret_cast<INPUT_RECORD *>(&inputRecord), 1024, &dwEventsRead) != 0)
{
WaitForSingleObject(g_SendBufferMutex, INFINITE);
for(DWORD i = 0; i < dwEventsRead; ++i)
{
if((inputRecord[i].EventType == KEY_EVENT) &&
(inputRecord[i].Event.KeyEvent.bKeyDown) &&
(inputRecord[i].Event.KeyEvent.uChar.AsciiChar != 0))
{
char buffer[3];
SecureZeroMemory(&buffer, sizeof(buffer));
DWORD dwBufferCount = 0;
buffer[dwBufferCount++] = inputRecord[i].Event.KeyEvent.uChar.AsciiChar;
if(inputRecord[i].Event.KeyEvent.uChar.AsciiChar == '\r')
{
buffer[dwBufferCount++] = '\n';
}
if(g_SendBufferCount + dwBufferCount > g_SendBufferSize)
{
g_SendBufferSize = g_SendBufferCount + dwBufferCount;
char *tmpSendBuffer = new char[g_SendBufferSize];
RtlCopyMemory(tmpSendBuffer, g_SendBuffer, g_SendBufferCount);
delete [] g_SendBuffer;
g_SendBuffer = tmpSendBuffer;
}
RtlCopyMemory(g_SendBuffer + g_SendBufferCount, &buffer, dwBufferCount);
g_SendBufferCount += dwBufferCount;
}
}
ReleaseMutex(g_SendBufferMutex);
}
}
else
{
Sleep(50);
}
}
return 0;
}
// ========================================================================================================================
void InitiateHandshake(char *buffer, unsigned int length)
{
DWORD dwSSPIFlags;
DWORD dwSSPIOutFlags;
dwSSPIFlags = ISC_REQ_SEQUENCE_DETECT | ISC_REQ_REPLAY_DETECT | ISC_REQ_CONFIDENTIALITY | ISC_RET_EXTENDED_ERROR |
ISC_REQ_ALLOCATE_MEMORY | ISC_REQ_STREAM;
SecBufferDesc inputBufferDesc;
SecBuffer inputBuffer;
inputBufferDesc.ulVersion = SECBUFFER_VERSION;
inputBufferDesc.cBuffers = 1;
inputBufferDesc.pBuffers = &inputBuffer;
inputBuffer.BufferType = SECBUFFER_TOKEN;
inputBuffer.cbBuffer = length;
inputBuffer.pvBuffer = buffer;
SecBufferDesc outputBufferDesc;
SecBuffer outputBuffer;
outputBufferDesc.ulVersion = SECBUFFER_VERSION;
outputBufferDesc.cBuffers = 1;
outputBufferDesc.pBuffers = &outputBuffer;
outputBuffer.BufferType = SECBUFFER_TOKEN;
outputBuffer.cbBuffer = 0;
outputBuffer.pvBuffer = NULL;
in_addr addrTarget;
addrTarget.S_un.S_addr = g_Ip;
SEC_WCHAR wszTargetName[16];
MultiByteToWideChar(CP_UTF8, 0, inet_ntoa(addrTarget), -1, reinterpret_cast<LPWSTR>(&wszTargetName), 16);
SECURITY_STATUS scRet = S_OK;
if(g_bListen)
{
scRet = AcceptSecurityContext(&g_hCreds,
NULL,
&inputBufferDesc,
dwSSPIFlags,
SECURITY_NATIVE_DREP,
&g_hContext,
&outputBufferDesc,
&dwSSPIOutFlags,
NULL);
}
else
{
scRet = InitializeSecurityContext(&g_hCreds,
NULL,
reinterpret_cast<SEC_WCHAR *>(&wszTargetName),
dwSSPIFlags,
0,
SECURITY_NATIVE_DREP,
NULL,
0,
&g_hContext,
&outputBufferDesc,
&dwSSPIOutFlags,
NULL);
}
if(scRet != SEC_I_CONTINUE_NEEDED)
{
std::cout << "AcceptSecurityContext/InitializeSecurityContext() Returned: 0x" << std::hex << scRet << std::dec << std::endl;
throw std::exception("AcceptSecurityContext/InitializeSecurityContext() Failed.");
}
send(g_hSocket, reinterpret_cast<const char *>(outputBufferDesc.pBuffers[0].pvBuffer), outputBufferDesc.pBuffers[0].cbBuffer, 0);
FreeContextBuffer(outputBufferDesc.pBuffers[0].pvBuffer);
g_bSslHandshakeInitiated = true;
}
// ========================================================================================================================
void ContinueHandshake(char *buffer, unsigned int length)
{
DWORD dwSSPIFlags;
DWORD dwSSPIOutFlags;
dwSSPIFlags = ISC_REQ_SEQUENCE_DETECT | ISC_REQ_REPLAY_DETECT | ISC_REQ_CONFIDENTIALITY | ISC_RET_EXTENDED_ERROR |
ISC_REQ_ALLOCATE_MEMORY | ISC_REQ_STREAM;
SecBufferDesc inputBufferDesc;
SecBuffer inputBuffer[2];
inputBufferDesc.ulVersion = SECBUFFER_VERSION;
inputBufferDesc.cBuffers = 2;
inputBufferDesc.pBuffers = reinterpret_cast<SecBuffer *>(&inputBuffer);
SecBufferDesc outputBufferDesc;
SecBuffer outputBuffer;
outputBufferDesc.ulVersion = SECBUFFER_VERSION;
outputBufferDesc.cBuffers = 1;
outputBufferDesc.pBuffers = &outputBuffer;
outputBuffer.BufferType = SECBUFFER_TOKEN;
outputBuffer.cbBuffer = 0;
outputBuffer.pvBuffer = NULL;
unsigned int recvBufferLength = 0;
char *recvBuffer = NULL;
SECURITY_STATUS scRet = SEC_I_CONTINUE_NEEDED;
while((scRet == SEC_I_CONTINUE_NEEDED) && ((g_ExtraBufferCount + length) > 0))
{
delete [] recvBuffer;
recvBuffer = NULL;
recvBufferLength = g_ExtraBufferCount + length;
recvBuffer = new char[recvBufferLength];
if(g_ExtraBufferCount != 0)
{
RtlCopyMemory(recvBuffer, g_ExtraBuffer, g_ExtraBufferCount);
RtlCopyMemory(recvBuffer + g_ExtraBufferCount, buffer, length);
}
else
{
RtlCopyMemory(recvBuffer, buffer, length);
}
length = 0;
delete [] g_ExtraBuffer;
g_ExtraBuffer = NULL;
g_ExtraBufferCount = 0;
inputBuffer[0].BufferType = SECBUFFER_TOKEN;
inputBuffer[0].cbBuffer = recvBufferLength;
inputBuffer[0].pvBuffer = recvBuffer;
inputBuffer[1].BufferType = SECBUFFER_EMPTY;
inputBuffer[1].cbBuffer = 0;
inputBuffer[1].pvBuffer = NULL;
if(g_bListen)
{
scRet = AcceptSecurityContext(&g_hCreds,
&g_hContext,
&inputBufferDesc,
dwSSPIFlags,
SECURITY_NATIVE_DREP,
&g_hContext,
&outputBufferDesc,
&dwSSPIOutFlags,
NULL);
}
else
{
scRet = InitializeSecurityContext(&g_hCreds,
&g_hContext,
NULL,
dwSSPIFlags,
0,
SECURITY_NATIVE_DREP,
&inputBufferDesc,
0,
&g_hContext,
&outputBufferDesc,
&dwSSPIOutFlags,
NULL);
}
if((scRet == SEC_E_OK) ||
(scRet == SEC_I_CONTINUE_NEEDED) ||
(FAILED(scRet) && (dwSSPIOutFlags & ISC_RET_EXTENDED_ERROR)))
{
if((outputBuffer.cbBuffer != 0) && (outputBuffer.pvBuffer != NULL))
{
send(g_hSocket, reinterpret_cast<const char *>(outputBufferDesc.pBuffers[0].pvBuffer), outputBufferDesc.pBuffers[0].cbBuffer, 0);
FreeContextBuffer(outputBufferDesc.pBuffers[0].pvBuffer);
outputBufferDesc.pBuffers[0].pvBuffer = NULL;
outputBufferDesc.pBuffers[0].cbBuffer = 0;
}
}
if(scRet == SEC_I_INCOMPLETE_CREDENTIALS)
{
g_ExtraBufferCount = recvBufferLength;
g_ExtraBuffer = new char[g_ExtraBufferCount];
RtlCopyMemory(g_ExtraBuffer, recvBuffer, recvBufferLength);
GetNewClientCredentials();
scRet = SEC_I_CONTINUE_NEEDED;
continue;
}
else if(scRet == SEC_E_INCOMPLETE_MESSAGE)
{
g_ExtraBufferCount = recvBufferLength;
g_ExtraBuffer = new char[g_ExtraBufferCount];
RtlCopyMemory(g_ExtraBuffer, recvBuffer, recvBufferLength);
break;
}
else
{
if((inputBuffer[1].BufferType = SECBUFFER_EXTRA) && (inputBuffer[1].cbBuffer > 0))
{
g_ExtraBufferCount = inputBuffer[1].cbBuffer;
g_ExtraBuffer = new char[g_ExtraBufferCount];
RtlCopyMemory(g_ExtraBuffer, recvBuffer + recvBufferLength - inputBuffer[1].cbBuffer, inputBuffer[1].cbBuffer);
}
if(scRet == SEC_E_OK)
{
EnterCriticalSection(&g_ConsoleCriticalSection);
if(g_bVerbose)
{
PrintConnectionInformation();
std::cout << std::endl;
}
std::cout << "Connected. Press Ctrl+C To Quit." << std::endl << std::endl;
LeaveCriticalSection(&g_ConsoleCriticalSection);
g_bSslHandshakeComplete = true;
break;
}
else if(FAILED(scRet))
{
std::cout << "AcceptSecurityContext/InitializeSecurityContext() Returned: 0x" << std::hex << scRet << std::dec << std::endl;
throw std::exception("AcceptSecurityContext/InitializeSecurityContext() Failed.");
}
}
break;
}
delete [] recvBuffer;
recvBuffer = NULL;
}
// ========================================================================================================================
void GetNewClientCredentials()
{
HCERTSTORE hCertStore;
if((hCertStore = CertOpenSystemStore(0, L"MY")) == NULL)
{
throw std::exception("CertOpenSystemStore(\"MY\") Failed.");
}
SecPkgContext_IssuerListInfoEx issuerListInfo;
SECURITY_STATUS securityStatus = QueryContextAttributes(&g_hContext,
SECPKG_ATTR_ISSUER_LIST_EX,
reinterpret_cast<PVOID>(&issuerListInfo));
if(securityStatus != SEC_E_OK)
{
throw std::exception("QueryContextAttributes(SECPKG_ATTR_ISSUER_LIST_EX) Failed.");
}
CERT_CHAIN_FIND_BY_ISSUER_PARA findByIssuerPara;
SecureZeroMemory(&findByIssuerPara, sizeof(CERT_CHAIN_FIND_BY_ISSUER_PARA));
findByIssuerPara.cbSize = sizeof(CERT_CHAIN_FIND_BY_ISSUER_PARA);
findByIssuerPara.pszUsageIdentifier =szOID_PKIX_KP_CLIENT_AUTH;
findByIssuerPara.dwKeySpec = 0;
findByIssuerPara.cIssuer = issuerListInfo.cIssuers;
findByIssuerPara.rgIssuer = issuerListInfo.aIssuers;
while(true)
{
PCCERT_CHAIN_CONTEXT pChainContext = NULL;
pChainContext = CertFindChainInStore(hCertStore,
X509_ASN_ENCODING,
0,
CERT_CHAIN_FIND_BY_ISSUER,
&findByIssuerPara,
pChainContext);
if(pChainContext == NULL)
{
throw std::exception("CertFindChainInStore() Failed.");
}
PCCERT_CONTEXT pCertContext = pChainContext->rgpChain[0]->rgpElement[0]->pCertContext;
g_sChannelCred.dwVersion = SCHANNEL_CRED_VERSION;
g_sChannelCred.cCreds = 1;
g_sChannelCred.paCred = &pCertContext;
CredHandle hCreds;
if(AcquireCredentialsHandle(NULL, UNISP_NAME, SECPKG_CRED_OUTBOUND, NULL, &g_sChannelCred, NULL, NULL, &hCreds, NULL) != SEC_E_OK)
{
continue;
}
FreeCredentialsHandle(&g_hCreds);
g_hCreds = hCreds;
break;
}
if(hCertStore != NULL)
{
CertCloseStore(hCertStore, 0);
hCertStore = NULL;
}
}
// ========================================================================================================================
void PrintConnectionInformation()
{
SecPkgContext_ConnectionInfo connectionInfo;
PCCERT_CONTEXT pCertContext = NULL;
if(QueryContextAttributes(&g_hContext,
SECPKG_ATTR_REMOTE_CERT_CONTEXT,
reinterpret_cast<PVOID>(&pCertContext)) == SEC_E_OK)
{
char certName[1024];
if(!CertNameToStrA(pCertContext->dwCertEncodingType,
&pCertContext->pCertInfo->Subject,
CERT_X500_NAME_STR | CERT_NAME_STR_NO_PLUS_FLAG,
certName,
sizeof(certName)))
{
throw std::exception("CertNameToStr() Failed.");
}
std::cout << "Subject: " << certName << std::endl << std::endl;
if(!CertNameToStrA(pCertContext->dwCertEncodingType,
&pCertContext->pCertInfo->Issuer,
CERT_X500_NAME_STR | CERT_NAME_STR_NO_PLUS_FLAG,
certName,
sizeof(certName)))
{
throw std::exception("CertNameToStr() Failed.");
}
std::cout << "Issuer: " << certName << std::endl << std::endl;
PCCERT_CONTEXT pCurrentCert = pCertContext;
while(pCurrentCert != NULL)
{
PCCERT_CONTEXT pIssuerCert = NULL;
DWORD dwVerificationFlags = 0;
if((pIssuerCert = CertGetIssuerCertificateFromStore(pCertContext->hCertStore,
pCurrentCert,
NULL,
&dwVerificationFlags)) == NULL)
{
if(pCurrentCert != pCertContext)
{
CertFreeCertificateContext(pCurrentCert);
pCurrentCert = NULL;
}
break;
}
if(!CertNameToStrA(pIssuerCert->dwCertEncodingType,
&pIssuerCert->pCertInfo->Subject,
CERT_X500_NAME_STR | CERT_NAME_STR_NO_PLUS_FLAG,
certName,
sizeof(certName)))
{
throw std::exception("CertNameToStr() Failed.");
}
std::cout << "CA Subject: " << certName << std::endl << std::endl;
if(!CertNameToStrA(pIssuerCert->dwCertEncodingType,
&pIssuerCert->pCertInfo->Issuer,
CERT_X500_NAME_STR | CERT_NAME_STR_NO_PLUS_FLAG,
certName,
sizeof(certName)))
{
throw std::exception("CertNameToStr() Failed.");
}
std::cout << "CA Issuer: " << certName << std::endl << std::endl;
if(pCurrentCert != pCertContext)
{
CertFreeCertificateContext(pCurrentCert);
}
pCurrentCert = pIssuerCert;
}
if(pCertContext != NULL)
{
CertFreeCertificateContext(pCertContext);
pCertContext = NULL;
}
}
std::cout << "Algorithms Negotiated: ";
if(QueryContextAttributes(&g_hContext,
SECPKG_ATTR_CONNECTION_INFO,
reinterpret_cast<PVOID>(&connectionInfo)) != SEC_E_OK)
{
throw std::exception("QueryContextAttributes(SECPKG_ATTR_CONNECTION_INFO) Failed.");
}
switch(connectionInfo.dwProtocol)
{
case SP_PROT_PCT1_CLIENT:
case SP_PROT_PCT1_SERVER:
std::cout << "PCT1";
break;
case SP_PROT_SSL2_CLIENT:
case SP_PROT_SSL2_SERVER:
std::cout << "SSL2";
break;
case SP_PROT_SSL3_CLIENT:
case SP_PROT_SSL3_SERVER:
std::cout << "SSL3";
break;
case SP_PROT_TLS1_CLIENT:
case SP_PROT_TLS1_SERVER:
std::cout << "TLS1";
break;
default:
std::cout << std::hex
<< connectionInfo.dwProtocol
<< std::dec;
break;
}
std::cout << " : ";
switch(connectionInfo.aiCipher)
{
case CALG_DES:
case CALG_CYLINK_MEK:
std::cout << "DES";
break;
case CALG_3DES:
std::cout << "3DES";
break;
case CALG_RC2:
std::cout << "RC2";
break;
case CALG_RC4:
std::cout << "RC4";
break;
case CALG_SKIPJACK:
std::cout << "Skipjack";
break;
default:
std::cout << std::hex
<< connectionInfo.aiCipher
<< std::dec;
break;
}
std::cout << " : " << connectionInfo.dwCipherStrength << "bit / ";
switch(connectionInfo.aiHash)
{
case CALG_MD5:
std::cout << "MD5";
break;
case CALG_SHA:
std::cout << "SHA";
break;
default:
std::cout << std::hex
<< connectionInfo.aiHash
<< std::dec;
break;
}
std::cout << " : " << connectionInfo.dwHashStrength << "bit / ";
switch(connectionInfo.aiExch)
{
case CALG_RSA_KEYX:
case CALG_RSA_SIGN:
std::cout << "RSA";
break;
case CALG_KEA_KEYX:
std::cout << "KEA";
break;
case CALG_DH_EPHEM:
std::cout << "DH";
break;
default:
std::cout << std::hex
<< connectionInfo.aiExch
<< std::dec;
break;
}
std::cout << " : " << connectionInfo.dwHashStrength << "bit" << std::endl;
}
// ========================================================================================================================
void PrintUsage()
{
std::cout << "Usage: SslCat.exe /Target <a.b.c.d> /Port <p>" << std::endl
<< " /Ssl2 /Ssl3 /Tls /Cipher <c> /Listen /Verbose" << std::endl
<< std::endl;
}
// ========================================================================================================================
void Recv(char *buffer, unsigned int length)
{
if(!g_bSslHandshakeComplete)
{
if(g_bListen)
{
if(!g_bSslHandshakeInitiated)
{
InitiateHandshake(buffer, length);
return;
}
}
ContinueHandshake(buffer, length);
return;
}
SecBufferDesc secBufferDesc;