DWORD WinVerifySslCert(const QByteArray& cert) {
DWORD errorStatus = -1;
PCCERT_CONTEXT certContext = CertCreateCertificateContext(X509_ASN_ENCODING, reinterpret_cast<const BYTE*>(cert.constData()), cert.size());
if (!certContext) {
return errorStatus;
}
LPSTR usage[] = {
szOID_PKIX_KP_SERVER_AUTH,
szOID_SERVER_GATED_CRYPTO,
szOID_SGC_NETSCAPE
};
CERT_CHAIN_PARA chainParameter;
memset(&chainParameter, 0, sizeof(CERT_CHAIN_PARA));
chainParameter.cbSize = sizeof(CERT_CHAIN_PARA);
chainParameter.RequestedUsage.dwType = USAGE_MATCH_TYPE_OR;
chainParameter.RequestedUsage.Usage.cUsageIdentifier = ARRAYSIZE(usage);
chainParameter.RequestedUsage.Usage.rgpszUsageIdentifier = usage;
PCCERT_CHAIN_CONTEXT chainContext = NULL;
CertGetCertificateChain(NULL, certContext, NULL, NULL, &chainParameter, 0, NULL, &chainContext);
if (chainContext) {
errorStatus = chainContext->TrustStatus.dwErrorStatus;
CertFreeCertificateChain(chainContext);
}
CertFreeCertificateContext(certContext);
return errorStatus;
}
DWORD VerifyCertificate(PCCERT_CONTEXT pCert,DWORD *CheckResult)
{
CERT_CHAIN_PARA ChainPara;
PCCERT_CHAIN_CONTEXT Chain=NULL;
ChainPara.cbSize=sizeof(ChainPara);
ChainPara.RequestedUsage.dwType=USAGE_MATCH_TYPE_AND;
ChainPara.RequestedUsage.Usage.cUsageIdentifier=0;
ChainPara.RequestedUsage.Usage.rgpszUsageIdentifier=NULL;
//ChainPara.RequestedIssuancePolicy=NULL;
//ChainPara.fCheckRevocationFreshnessTime=FALSE;
//ChainPara.dwUrlRetrievalTimeout=0;
if(!CertGetCertificateChain(
NULL,
pCert,
NULL,
NULL,//?
&ChainPara,
CERT_CHAIN_REVOCATION_CHECK_CHAIN_EXCLUDE_ROOT,
NULL,
&Chain))
return CSP_GetLastError();
*CheckResult=Chain->TrustStatus.dwErrorStatus;
if(Chain)
CertFreeCertificateChain(Chain);
return 0;
}
SECURITY_STATUS SSL_SOCKET :: Verify(PCCERT_CONTEXT px)
{
if (px == 0)
return SEC_E_WRONG_PRINCIPAL;
// Time
int iRc = CertVerifyTimeValidity(NULL,px->pCertInfo);
if (iRc != 0)
return SEC_E_CERT_EXPIRED;
// Chain
CERT_CHAIN_PARA ChainPara = {0};
PCCERT_CHAIN_CONTEXT pChainContext = NULL;
ChainPara.cbSize = sizeof(ChainPara);
if (!CertGetCertificateChain(0,px,0,0,&ChainPara,0,0,&pChainContext))
return SEC_E_INVALID_TOKEN;
/* ZeroMemory(&polHttps, sizeof(HTTPSPolicyCallbackData));
polHttps.cbStruct = sizeof(HTTPSPolicyCallbackData);
polHttps.dwAuthType = AUTHTYPE_SERVER;
polHttps.fdwChecks = dwCertFlags;
polHttps.pwszServerName = pwszServerName;
memset(&PolicyPara, 0, sizeof(PolicyPara));
PolicyPara.cbSize = sizeof(PolicyPara);
PolicyPara.pvExtraPolicyPara = &polHttps;
memset(&PolicyStatus, 0, sizeof(PolicyStatus));
PolicyStatus.cbSize = sizeof(PolicyStatus);
if (!CertVerifyCertificateChainPolicy(
CERT_CHAIN_POLICY_SSL,
pChainContext,
&PolicyPara,
&PolicyStatus)) {
Status = ::GetLastError();
SetLastError(Status);
break;
}
*/
PCCERT_CONTEXT j[2];
j[0] = px;
CERT_REVOCATION_STATUS cs = {0};
cs.cbSize = sizeof(cs);
SECURITY_STATUS ss =
CertVerifyRevocation(X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,CERT_CONTEXT_REVOCATION_TYPE,
1,(void**)j,0,0,&cs);
if (pChainContext)
CertFreeCertificateChain(pChainContext);
return ss;
}
static void check_and_store_certs(HCERTSTORE from, HCERTSTORE to)
{
DWORD root_count = 0;
CERT_CHAIN_ENGINE_CONFIG chainEngineConfig =
{ sizeof(chainEngineConfig), 0 };
HCERTCHAINENGINE engine;
TRACE("\n");
CertDuplicateStore(to);
engine = CRYPT_CreateChainEngine(to, &chainEngineConfig);
if (engine)
{
PCCERT_CONTEXT cert = NULL;
do {
cert = CertEnumCertificatesInStore(from, cert);
if (cert)
{
CERT_CHAIN_PARA chainPara = { sizeof(chainPara), { 0 } };
PCCERT_CHAIN_CONTEXT chain;
BOOL ret = CertGetCertificateChain(engine, cert, NULL, from,
&chainPara, 0, NULL, &chain);
if (!ret)
TRACE("rejecting %s: %s\n", get_cert_common_name(cert),
"chain creation failed");
else
{
/* The only allowed error is CERT_TRUST_IS_UNTRUSTED_ROOT */
if (chain->TrustStatus.dwErrorStatus &
~CERT_TRUST_IS_UNTRUSTED_ROOT)
TRACE("rejecting %s: %s\n", get_cert_common_name(cert),
trust_status_to_str(chain->TrustStatus.dwErrorStatus &
~CERT_TRUST_IS_UNTRUSTED_ROOT));
else
{
DWORD i, j;
for (i = 0; i < chain->cChain; i++)
for (j = 0; j < chain->rgpChain[i]->cElement; j++)
if (CertAddCertificateContextToStore(to,
chain->rgpChain[i]->rgpElement[j]->pCertContext,
CERT_STORE_ADD_NEW, NULL))
root_count++;
}
CertFreeCertificateChain(chain);
}
}
} while (cert);
CertFreeCertificateChainEngine(engine);
}
TRACE("Added %d root certificates\n", root_count);
}
/* Helper for windows_ssl_server_trust_first_credentials for validating
* certificate using CryptoApi. Sets *OK_P to TRUE if base64 encoded ASCII_CERT
* certificate considered as valid.
*/
static svn_error_t *
windows_validate_certificate(svn_boolean_t *ok_p,
const char *ascii_cert,
apr_pool_t *pool)
{
PCCERT_CONTEXT cert_context = NULL;
CERT_CHAIN_PARA chain_para;
PCCERT_CHAIN_CONTEXT chain_context = NULL;
*ok_p = FALSE;
/* Parse the certificate into a context. */
cert_context = certcontext_from_base64(ascii_cert, pool);
if (cert_context)
{
/* Retrieve the certificate chain of the certificate
(a certificate without a valid root does not have a chain). */
memset(&chain_para, 0, sizeof(chain_para));
chain_para.cbSize = sizeof(chain_para);
if (CertGetCertificateChain(NULL, cert_context, NULL, NULL, &chain_para,
CERT_CHAIN_CACHE_END_CERT |
CERT_CHAIN_REVOCATION_CHECK_CHAIN_EXCLUDE_ROOT,
NULL, &chain_context))
{
CERT_CHAIN_POLICY_PARA policy_para;
CERT_CHAIN_POLICY_STATUS policy_status;
policy_para.cbSize = sizeof(policy_para);
policy_para.dwFlags = 0;
policy_para.pvExtraPolicyPara = NULL;
policy_status.cbSize = sizeof(policy_status);
if (CertVerifyCertificateChainPolicy(CERT_CHAIN_POLICY_SSL,
chain_context, &policy_para,
&policy_status))
{
if (policy_status.dwError == S_OK)
{
/* Windows thinks the certificate is valid. */
*ok_p = TRUE;
}
}
CertFreeCertificateChain(chain_context);
}
CertFreeCertificateContext(cert_context);
}
return SVN_NO_ERROR;
}
static BOOL WINTRUST_CreateChainForSigner(CRYPT_PROVIDER_DATA *data,
DWORD signer, PWTD_GENERIC_CHAIN_POLICY_CREATE_INFO createInfo,
PCERT_CHAIN_PARA chainPara)
{
BOOL ret = TRUE;
HCERTSTORE store = NULL;
if (data->chStores)
{
store = CertOpenStore(CERT_STORE_PROV_COLLECTION, 0, 0,
CERT_STORE_CREATE_NEW_FLAG, NULL);
if (store)
{
DWORD i;
for (i = 0; i < data->chStores; i++)
CertAddStoreToCollection(store, data->pahStores[i], 0, 0);
}
}
/* Expect the end certificate for each signer to be the only cert in the
* chain:
*/
if (data->pasSigners[signer].csCertChain)
{
/* Create a certificate chain for each signer */
ret = CertGetCertificateChain(createInfo->hChainEngine,
data->pasSigners[signer].pasCertChain[0].pCert,
&data->pasSigners[signer].sftVerifyAsOf, store,
chainPara, createInfo->dwFlags, createInfo->pvReserved,
&data->pasSigners[signer].pChainContext);
if (ret)
{
if (data->pasSigners[signer].pChainContext->cChain != 1)
{
FIXME("unimplemented for more than 1 simple chain\n");
ret = FALSE;
}
else
{
if ((ret = WINTRUST_CopyChain(data, signer)))
{
if (data->psPfns->pfnCertCheckPolicy)
ret = data->psPfns->pfnCertCheckPolicy(data, signer,
FALSE, 0);
else
TRACE("no cert check policy, skipping policy check\n");
}
}
}
}
CertCloseStore(store, 0);
return ret;
}
bool
CertificateVerifier::VerifyCertificate_( PCCERT_CONTEXT certificate, LPWSTR server_name,int &windows_error_code) const
{
windows_error_code = 0;
LPSTR usage_identifier[] = { szOID_PKIX_KP_SERVER_AUTH, szOID_SERVER_GATED_CRYPTO, szOID_SGC_NETSCAPE };
CERT_CHAIN_PARA params = { sizeof( params ) };
params.RequestedUsage.dwType = USAGE_MATCH_TYPE_OR;
params.RequestedUsage.Usage.cUsageIdentifier = _countof( usage_identifier );
params.RequestedUsage.Usage.rgpszUsageIdentifier = usage_identifier;
PCCERT_CHAIN_CONTEXT chain_context = 0;
if (!CertGetCertificateChain(NULL,
certificate,
NULL,
NULL,
¶ms,
CERT_CHAIN_REVOCATION_CHECK_CHAIN_EXCLUDE_ROOT,
NULL,
&chain_context))
{
windows_error_code = GetLastError();
return false;
}
SSL_EXTRA_CERT_CHAIN_POLICY_PARA sslPolicy = { sizeof( sslPolicy ) };
sslPolicy.dwAuthType = AUTHTYPE_SERVER;
sslPolicy.pwszServerName = server_name;
CERT_CHAIN_POLICY_PARA policy = { sizeof( policy ) };
policy.pvExtraPolicyPara = &sslPolicy;
CERT_CHAIN_POLICY_STATUS status = { sizeof( status ) };
BOOL policy_checked = CertVerifyCertificateChainPolicy(CERT_CHAIN_POLICY_SSL,
chain_context,
&policy,
&status );
CertFreeCertificateChain( chain_context );
windows_error_code = status.dwError;
bool certificate_ok = policy_checked && status.dwError == 0;
return certificate_ok;
}
/*****************************************************************************
wmain
*****************************************************************************/
DWORD
__cdecl
wmain(
int argc,
LPWSTR argv[]
)
{
HRESULT hr = S_OK;
BOOL fSign = TRUE;
LPCWSTR pwszInputFile = NULL;
LPCWSTR pwszOutputFile = NULL;
BYTE *pbInput = NULL;
DWORD cbInput = 0;
BYTE *pbOutput = NULL;
DWORD cbOutput = 0;
CERT_CHAIN_PARA ChainPara = {0};
CERT_CHAIN_POLICY_PARA ChainPolicy = {0};
CERT_CHAIN_POLICY_STATUS PolicyStatus = {0};
PCCERT_CHAIN_CONTEXT pChain = NULL;
PCCERT_CONTEXT pSignerCert = NULL;
HCERTSTORE hStoreHandle = NULL;
LPCWSTR pwszStoreName = L"MY"; // by default
LPCWSTR pwszCName = L"Test"; // by default
LPCWSTR wszHashAlgName = L"SHA1";
int i;
//
// options
//
for( i=1; i<argc; i++ )
{
if ( lstrcmpW (argv[i], L"/?") == 0 ||
lstrcmpW (argv[i], L"-?") == 0 )
{
Usage( L"cms_sign.exe" );
goto CleanUp;
}
if( *argv[i] != L'-' )
break;
if ( lstrcmpW (argv[i], L"-s") == 0 )
{
if( i+1 >= argc )
{
hr = E_INVALIDARG;
goto CleanUp;
}
pwszStoreName = argv[++i];
}
else
if ( lstrcmpW (argv[i], L"-n") == 0 )
{
if( i+1 >= argc )
{
hr = E_INVALIDARG;
goto CleanUp;
}
pwszCName = argv[++i];
}
else
if ( lstrcmpW (argv[i], L"-a") == 0 )
{
if( i+1 >= argc )
{
hr = E_INVALIDARG;
goto CleanUp;
}
wszHashAlgName = argv[++i];
}
}
if( 0 == lstrcmpW (argv[i], L"SIGN"))
{
if( i+2 >= argc )
{
hr = E_INVALIDARG;
goto CleanUp;
}
fSign = TRUE;
pwszInputFile = argv[++i];
pwszOutputFile = argv[++i];
}
else
if( 0 == lstrcmpW (argv[i], L"VERIFY"))
{
if( i+1 >= argc )
{
hr = E_INVALIDARG;
goto CleanUp;
}
fSign = FALSE;
pwszInputFile = argv[++i];
}
else
{
hr = E_INVALIDARG;
goto CleanUp;
}
if( i != argc-1 )
{
hr = E_INVALIDARG;
goto CleanUp;
}
//-------------------------------------------------------------------
// Open the certificate store to be searched.
hStoreHandle = CertOpenStore(
CERT_STORE_PROV_SYSTEM, // the store provider type
0, // the encoding type is not needed
NULL, // use the default HCRYPTPROV
CERT_SYSTEM_STORE_CURRENT_USER, // set the store location in a
// registry location
pwszStoreName
); // the store name
if( NULL == hStoreHandle )
{
hr = HRESULT_FROM_WIN32( GetLastError() );
goto CleanUp;
}
//
// Load file
//
hr = HrLoadFile(
pwszInputFile,
&pbInput,
&cbInput
);
if( FAILED(hr) )
{
wprintf( L"Unable to read file: %s\n", pwszInputFile );
goto CleanUp;
}
if( fSign )
{
//-------------------------------------------------------------------
// Sign Message
PCCRYPT_OID_INFO pOidInfo = NULL;
CRYPT_SIGN_MESSAGE_PARA SigParams = {0};
// Create the MessageArray and the MessageSizeArray.
const BYTE* MessageArray[] = {pbInput};
DWORD MessageSizeArray[] = {cbInput};
//
// Get a certificate that has the specified Subject Name
//
pSignerCert = CertFindCertificateInStore(
hStoreHandle,
X509_ASN_ENCODING , // Use X509_ASN_ENCODING
0, // No dwFlags needed
CERT_FIND_SUBJECT_STR, // Find a certificate with a
// subject that matches the
// string in the next parameter
pwszCName, // The Unicode string to be found
// in a certificate's subject
NULL); // NULL for the first call to the
// function; In all subsequent
// calls, it is the last pointer
// returned by the function
if( NULL == pSignerCert )
{
hr = HRESULT_FROM_WIN32( GetLastError() );
goto CleanUp;
}
//
// Build a chain in order to include certs to the message
//
if( !CertGetCertificateChain(
NULL, // use the default chain engine
pSignerCert, // pointer to the end certificate
NULL, // use the default time
NULL, // search no additional stores
&ChainPara, // use AND logic and enhanced key usage
// as indicated in the ChainPara
// data structure
CERT_CHAIN_REVOCATION_CHECK_END_CERT,
NULL, // currently reserved
&pChain )) // return a pointer to the chain created
{
hr = HRESULT_FROM_WIN32( GetLastError() );
goto CleanUp;
}
//
// Verify that the chain complies with Base policy
//
ChainPolicy.cbSize = sizeof(CERT_CHAIN_POLICY_PARA);
ChainPolicy.dwFlags = 0;
PolicyStatus.cbSize = sizeof(CERT_CHAIN_POLICY_STATUS);
ChainPolicy.pvExtraPolicyPara = NULL;
if (!CertVerifyCertificateChainPolicy(
CERT_CHAIN_POLICY_BASE,
pChain,
&ChainPolicy,
&PolicyStatus))
{
hr = HRESULT_FROM_WIN32( GetLastError() );
goto CleanUp;
}
if( PolicyStatus.dwError != S_OK )
{
ReportError( L"Base Policy Chain Status Failure:", PolicyStatus.dwError );
hr = PolicyStatus.dwError;
}
// Initialize the signature structure.
SigParams.cbSize = sizeof(SigParams);
SigParams.dwMsgEncodingType = X509_ASN_ENCODING | PKCS_7_ASN_ENCODING;
SigParams.pSigningCert = pSignerCert;
SigParams.cAuthAttr = 0;
SigParams.dwInnerContentType = 0;
SigParams.cMsgCrl = 0;
SigParams.cUnauthAttr = 0;
SigParams.dwFlags = 0;
SigParams.pvHashAuxInfo = NULL;
SigParams.rgAuthAttr = NULL;
//
// Addd max of 8 certs to the message
//
PCCERT_CONTEXT rgpMsgCert[8] = {NULL};
SigParams.rgpMsgCert = rgpMsgCert;
for( SigParams.cMsgCert=0; SigParams.cMsgCert<pChain->rgpChain[0]->cElement && SigParams.cMsgCert<8; SigParams.cMsgCert++ )
{
rgpMsgCert[SigParams.cMsgCert] = pChain->rgpChain[0]->rgpElement[SigParams.cMsgCert]->pCertContext;
}
//
// Find OID
//
pOidInfo = CryptFindOIDInfo(
CRYPT_OID_INFO_NAME_KEY,
(void*)wszHashAlgName,
CRYPT_HASH_ALG_OID_GROUP_ID
);
if( NULL == pOidInfo )
{
hr = CRYPT_E_UNKNOWN_ALGO;
goto CleanUp;
}
SigParams.HashAlgorithm.pszObjId = (LPSTR)pOidInfo->pszOID;
// First, get the size of the signed BLOB.
if( !CryptSignMessage(
&SigParams,
FALSE,
1,
MessageArray,
&cbInput,
NULL,
&cbOutput ))
{
hr = HRESULT_FROM_WIN32( GetLastError() );
goto CleanUp;
}
// Allocate memory for the signed BLOB.
pbOutput = (BYTE*)LocalAlloc( LPTR, cbOutput );
if( NULL == pbOutput )
{
hr = HRESULT_FROM_WIN32( ERROR_OUTOFMEMORY );
goto CleanUp;
}
// Get the signed message BLOB.
if( !CryptSignMessage(
&SigParams,
FALSE,
1,
MessageArray,
MessageSizeArray,
pbOutput,
&cbOutput ))
{
hr = HRESULT_FROM_WIN32( GetLastError() );
goto CleanUp;
}
hr = HrSaveFile(
pwszOutputFile,
pbOutput,
cbOutput
);
if( FAILED(hr) )
{
wprintf( L"Unable to save file: %s\n", pwszOutputFile );
goto CleanUp;
}
wprintf( L"Successfully signed message using CryptSignMessage.\n");
}
else
{
//-------------------------------------------------------------------
// Verify signed message
CRYPT_VERIFY_MESSAGE_PARA VerifyParams = {0};
VerifyParams.cbSize = sizeof(VerifyParams);
VerifyParams.dwMsgAndCertEncodingType = X509_ASN_ENCODING | PKCS_7_ASN_ENCODING;
VerifyParams.hCryptProv = 0;
VerifyParams.pfnGetSignerCertificate = NULL;
VerifyParams.pvGetArg = NULL;
// First, call CryptVerifyMessageSignature to get the length
// of the buffer needed to hold the decoded message.
if( !CryptVerifyMessageSignature(
&VerifyParams,
0,
pbInput,
cbInput,
NULL,
&cbOutput,
NULL))
{
hr = HRESULT_FROM_WIN32( GetLastError() );
goto CleanUp;
}
pbOutput = (BYTE*)LocalAlloc( LPTR, cbOutput );
if( NULL == pbOutput )
{
hr = HRESULT_FROM_WIN32( ERROR_OUTOFMEMORY );
goto CleanUp;
}
//---------------------------------------------------------------
// Call CryptVerifyMessageSignature again to verify the signature
// and, if successful, copy the decoded message into the buffer.
if( !CryptVerifyMessageSignature(
&VerifyParams,
0,
pbInput,
cbInput,
pbOutput,
&cbOutput,
&pSignerCert))
{
hr = HRESULT_FROM_WIN32( GetLastError() );
goto CleanUp;
}
wprintf( L"Successfully verified signed message using CryptVerifyMessageSignature.\n");
//
// Build a chain in order to verify certificate trust
//
//
// Instruction : Create a certificate store from the CMS message and provide as a parameter to
// CertGetCertificateChain. This will ensure that all additional certificates from
// the CMS message are used in chain building
// Otherwise chain will be build using the local stores only.
//
if( !CertGetCertificateChain(
NULL, // use the default chain engine
pSignerCert, // pointer to the end certificate
NULL, // use the default time
NULL, // search no additional stores
&ChainPara, // use AND logic and enhanced key usage
// as indicated in the ChainPara
// data structure
CERT_CHAIN_REVOCATION_CHECK_CHAIN_EXCLUDE_ROOT,
NULL, // currently reserved
&pChain )) // return a pointer to the chain created
{
hr = HRESULT_FROM_WIN32( GetLastError() );
goto CleanUp;
}
//
// Verify that the chain complies with Base policy
//
ChainPolicy.cbSize = sizeof(CERT_CHAIN_POLICY_PARA);
ChainPolicy.dwFlags = 0;
PolicyStatus.cbSize = sizeof(CERT_CHAIN_POLICY_STATUS);
ChainPolicy.pvExtraPolicyPara = NULL;
if (!CertVerifyCertificateChainPolicy(
CERT_CHAIN_POLICY_BASE,
pChain,
&ChainPolicy,
&PolicyStatus))
{
hr = HRESULT_FROM_WIN32( GetLastError() );
goto CleanUp;
}
if( PolicyStatus.dwError != S_OK )
{
ReportError( L"Base Policy Chain Status Failure:", PolicyStatus.dwError );
hr = PolicyStatus.dwError;
}
}
hr = S_OK;
//-------------------------------------------------------------------
// Clean up memory.
CleanUp:
if( NULL != pbInput )
{
LocalFree(pbInput);
}
if( NULL != pbOutput )
{
LocalFree(pbOutput);
}
if( NULL != pChain )
{
CertFreeCertificateChain(pChain);
}
if( NULL != pSignerCert )
{
CertFreeCertificateContext(pSignerCert);
}
if( NULL != hStoreHandle)
{
CertCloseStore( hStoreHandle, 0 );
}
if( FAILED( hr ))
{
ReportError( NULL, hr );
}
return (DWORD)hr;
} // End of main
int CryptoAPI_verify_certificate(X509 *x509)
{
int ret = -1;
int len;
unsigned char *buf = NULL;
PCCERT_CONTEXT pCertContext = NULL;
PCCERT_CHAIN_CONTEXT pChainContext = NULL;
CERT_ENHKEY_USAGE EnhkeyUsage;
CERT_USAGE_MATCH CertUsage;
CERT_CHAIN_PARA ChainPara;
/* Convert from internal X509 format to DER */
len = i2d_X509(x509, &buf);
if (len < 0) {
SSLerr(SSL_F_SSL_CTX_USE_CERTIFICATE_FILE, ERR_R_ASN1_LIB);
goto err;
}
#ifdef __MINGW32_VERSION
/* MinGW w32api is incomplete when it comes to CryptoAPI, as per version 3.1
* anyway. This is a hack around that problem. */
if (crypt32dll == NULL) {
crypt32dll = LoadLibrary("crypt32");
if (crypt32dll == NULL) {
CRYPTOAPIerr(CRYPTOAPI_F_LOAD_LIBRARY);
goto err;
}
}
if (CertCreateCertificateContext == NULL) {
CertCreateCertificateContext = GetProcAddress(crypt32dll,
"CertCreateCertificateContext");
if (CertCreateCertificateContext == NULL) {
CRYPTOAPIerr(CRYPTOAPI_F_GET_PROC_ADDRESS);
goto err;
}
}
#endif
/* Create a certificate context based on the above certificate */
pCertContext = CertCreateCertificateContext(X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,
buf, len);
if (pCertContext == NULL) {
CRYPTOAPIerr(CRYPTOAPI_F_CERT_CREATE_CERT_CONTEXT);
goto err;
}
/* Create an empty issuer list */
EnhkeyUsage.cUsageIdentifier = 0;
EnhkeyUsage.rgpszUsageIdentifier = NULL;
CertUsage.dwType = USAGE_MATCH_TYPE_AND;
CertUsage.Usage = EnhkeyUsage;
/* Searching and matching criteria to be used when building the chain */
ChainPara.cbSize = sizeof(CERT_CHAIN_PARA);
ChainPara.RequestedUsage = CertUsage;
/* Get the certificate chain of our certificate */
if (!CertGetCertificateChain(NULL, pCertContext, NULL, NULL, &ChainPara,
0, NULL, &pChainContext)) {
CRYPTOAPIerr(CRYPTOAPI_F_CERT_GET_CERT_CHAIN);
goto err;
}
/* return 1 when the certificate is trusted, 0 when it's not; -1 on error */
ret = (pChainContext->TrustStatus.dwErrorStatus == CERT_TRUST_NO_ERROR);
err:
if (buf)
OPENSSL_free(buf);
if (pChainContext)
CertFreeCertificateChain(pChainContext);
if (pCertContext)
CertFreeCertificateContext(pCertContext);
return ret;
}
/*
* 'sspi_verify_certificate()' - Verify a server certificate
*/
static DWORD /* 0 - Error code (0 == No error) */
sspi_verify_certificate(PCCERT_CONTEXT serverCert,
/* I - Server certificate */
const CHAR *serverName,
/* I - Server name */
DWORD dwCertFlags)
/* I - Verification flags */
{
HTTPSPolicyCallbackData httpsPolicy;
/* HTTPS Policy Struct */
CERT_CHAIN_POLICY_PARA policyPara;
/* Cert chain policy parameters */
CERT_CHAIN_POLICY_STATUS policyStatus;
/* Cert chain policy status */
CERT_CHAIN_PARA chainPara;
/* Used for searching and matching criteria */
PCCERT_CHAIN_CONTEXT chainContext = NULL;
/* Certificate chain */
PWSTR serverNameUnicode = NULL;
/* Unicode server name */
LPSTR rgszUsages[] = { szOID_PKIX_KP_SERVER_AUTH,
szOID_SERVER_GATED_CRYPTO,
szOID_SGC_NETSCAPE };
/* How are we using this certificate? */
DWORD cUsages = sizeof(rgszUsages) / sizeof(LPSTR);
/* Number of ites in rgszUsages */
DWORD count; /* 32 bit count variable */
DWORD status; /* Return value */
if (!serverCert)
{
status = SEC_E_WRONG_PRINCIPAL;
goto cleanup;
}
/*
* Convert server name to unicode.
*/
if (!serverName || (strlen(serverName) == 0))
{
status = SEC_E_WRONG_PRINCIPAL;
goto cleanup;
}
count = MultiByteToWideChar(CP_ACP, 0, serverName, -1, NULL, 0);
serverNameUnicode = LocalAlloc(LMEM_FIXED, count * sizeof(WCHAR));
if (!serverNameUnicode)
{
status = SEC_E_INSUFFICIENT_MEMORY;
goto cleanup;
}
count = MultiByteToWideChar(CP_ACP, 0, serverName, -1, serverNameUnicode, count);
if (count == 0)
{
status = SEC_E_WRONG_PRINCIPAL;
goto cleanup;
}
/*
* Build certificate chain.
*/
ZeroMemory(&chainPara, sizeof(chainPara));
chainPara.cbSize = sizeof(chainPara);
chainPara.RequestedUsage.dwType = USAGE_MATCH_TYPE_OR;
chainPara.RequestedUsage.Usage.cUsageIdentifier = cUsages;
chainPara.RequestedUsage.Usage.rgpszUsageIdentifier = rgszUsages;
if (!CertGetCertificateChain(NULL, serverCert, NULL, serverCert->hCertStore,
&chainPara, 0, NULL, &chainContext))
{
status = GetLastError();
DEBUG_printf(("CertGetCertificateChain returned 0x%x\n", status));
goto cleanup;
}
/*
* Validate certificate chain.
*/
ZeroMemory(&httpsPolicy, sizeof(HTTPSPolicyCallbackData));
httpsPolicy.cbStruct = sizeof(HTTPSPolicyCallbackData);
httpsPolicy.dwAuthType = AUTHTYPE_SERVER;
httpsPolicy.fdwChecks = dwCertFlags;
httpsPolicy.pwszServerName = serverNameUnicode;
memset(&policyPara, 0, sizeof(policyPara));
policyPara.cbSize = sizeof(policyPara);
policyPara.pvExtraPolicyPara = &httpsPolicy;
memset(&policyStatus, 0, sizeof(policyStatus));
policyStatus.cbSize = sizeof(policyStatus);
if (!CertVerifyCertificateChainPolicy(CERT_CHAIN_POLICY_SSL, chainContext,
&policyPara, &policyStatus))
{
status = GetLastError();
DEBUG_printf(("CertVerifyCertificateChainPolicy returned %d", status));
goto cleanup;
}
if (policyStatus.dwError)
{
status = policyStatus.dwError;
goto cleanup;
}
status = SEC_E_OK;
cleanup:
if (chainContext)
CertFreeCertificateChain(chainContext);
if (serverNameUnicode)
LocalFree(serverNameUnicode);
return (status);
}
/* Helper function to trace the signing cert to a trusted CA root
* in the Windows Certificate Store. */
static int checkCertCryptoAPI(const GTPublicationsFile *publications_file)
{
int res = GT_UNKNOWN_ERROR;
unsigned char *cert_der = NULL;
size_t cert_der_len;
PCCERT_CONTEXT pCertContext = NULL;
PCCERT_CHAIN_CONTEXT pChainContext = NULL;
CERT_ENHKEY_USAGE enhkeyUsage;
CERT_USAGE_MATCH certUsage;
CERT_CHAIN_PARA chainPara;
CERT_CHAIN_POLICY_PARA policyPara;
CERT_CHAIN_POLICY_STATUS policyStatus;
char tmp_name[256];
res = GTPublicationsFile_getSigningCert(publications_file, &cert_der, &cert_der_len);
if (res != GT_OK) {
goto cleanup;
}
/* Create a certificate context based on the above certificate. */
pCertContext = CertCreateCertificateContext(
X509_ASN_ENCODING | PKCS_7_ASN_ENCODING, cert_der, cert_der_len);
if (pCertContext == NULL) {
res = GT_CRYPTO_FAILURE;
goto cleanup;
}
#ifdef MAGIC_EMAIL
CertGetNameStringA(pCertContext, CERT_NAME_EMAIL_TYPE, 0, NULL,
tmp_name, sizeof(tmp_name));
if (strcmp(tmp_name, MAGIC_EMAIL) != 0) {
return GT_INVALID_SIGNATURE;
}
#endif
/* Get the certificate chain of our certificate. */
enhkeyUsage.cUsageIdentifier = 0;
enhkeyUsage.rgpszUsageIdentifier = NULL;
certUsage.dwType = USAGE_MATCH_TYPE_AND;
certUsage.Usage = enhkeyUsage;
chainPara.cbSize = sizeof(CERT_CHAIN_PARA);
chainPara.RequestedUsage = certUsage;
if (!CertGetCertificateChain(NULL, pCertContext, NULL, NULL,
&chainPara, 0, NULL, &pChainContext)) {
res = GT_CRYPTO_FAILURE;
goto cleanup;
}
if (pChainContext->TrustStatus.dwErrorStatus != CERT_TRUST_NO_ERROR) {
res = GT_CERT_NOT_TRUSTED;
goto cleanup;
}
/* Verify certificate chain. */
policyPara.cbSize = sizeof(CERT_CHAIN_POLICY_PARA);
policyPara.dwFlags = 0;
policyPara.pvExtraPolicyPara = NULL;
if (!CertVerifyCertificateChainPolicy(CERT_CHAIN_POLICY_BASE,
pChainContext, &policyPara, &policyStatus)) {
res = GT_CRYPTO_FAILURE;
goto cleanup;
}
if (policyStatus.dwError) {
res = GT_CERT_NOT_TRUSTED;
goto cleanup;
}
res = GT_OK;
cleanup:
GT_free(cert_der);
if (pChainContext != NULL) {
CertFreeCertificateChain(pChainContext);
}
if (pCertContext != NULL) {
CertFreeCertificateContext(pCertContext);
}
return res;
}
SECURITY_STATUS SchannelContext::validateServerCertificate()
{
SchannelCertificate::ref pServerCert = boost::dynamic_pointer_cast<SchannelCertificate>( getPeerCertificate() );
if (!pServerCert)
return SEC_E_WRONG_PRINCIPAL;
const LPSTR usage[] =
{
szOID_PKIX_KP_SERVER_AUTH,
szOID_SERVER_GATED_CRYPTO,
szOID_SGC_NETSCAPE
};
CERT_CHAIN_PARA chainParams = {0};
chainParams.cbSize = sizeof(chainParams);
chainParams.RequestedUsage.dwType = USAGE_MATCH_TYPE_OR;
chainParams.RequestedUsage.Usage.cUsageIdentifier = ARRAYSIZE(usage);
chainParams.RequestedUsage.Usage.rgpszUsageIdentifier = const_cast<LPSTR*>(usage);
DWORD chainFlags = CERT_CHAIN_CACHE_END_CERT | CERT_CHAIN_REVOCATION_CHECK_CHAIN_EXCLUDE_ROOT;
ScopedCertChainContext pChainContext;
BOOL success = CertGetCertificateChain(
NULL, // Use the chain engine for the current user (assumes a user is logged in)
pServerCert->getCertContext(),
NULL,
NULL,
&chainParams,
chainFlags,
NULL,
pChainContext.Reset());
if (!success)
return GetLastError();
SSL_EXTRA_CERT_CHAIN_POLICY_PARA sslChainPolicy = {0};
sslChainPolicy.cbSize = sizeof(sslChainPolicy);
sslChainPolicy.dwAuthType = AUTHTYPE_SERVER;
sslChainPolicy.fdwChecks = SECURITY_FLAG_IGNORE_CERT_CN_INVALID; // Swiften checks the server name for us. Is this the correct way to disable server name checking?
sslChainPolicy.pwszServerName = NULL;
CERT_CHAIN_POLICY_PARA certChainPolicy = {0};
certChainPolicy.cbSize = sizeof(certChainPolicy);
certChainPolicy.dwFlags = CERT_CHAIN_POLICY_IGNORE_INVALID_NAME_FLAG; // Swiften checks the server name for us. Is this the correct way to disable server name checking?
certChainPolicy.pvExtraPolicyPara = &sslChainPolicy;
CERT_CHAIN_POLICY_STATUS certChainPolicyStatus = {0};
certChainPolicyStatus.cbSize = sizeof(certChainPolicyStatus);
// Verify the chain
if (!CertVerifyCertificateChainPolicy(
CERT_CHAIN_POLICY_SSL,
pChainContext,
&certChainPolicy,
&certChainPolicyStatus))
{
return GetLastError();
}
if (certChainPolicyStatus.dwError != S_OK)
return certChainPolicyStatus.dwError;
return S_OK;
}
// Return an indication of whether a certificate is trusted by asking Windows to validate the
// trust chain (basically asking is the certificate issuer trusted)
HRESULT CertTrusted(PCCERT_CONTEXT pCertContext)
{
HTTPSPolicyCallbackData polHttps;
CERT_CHAIN_POLICY_PARA PolicyPara;
CERT_CHAIN_POLICY_STATUS PolicyStatus;
CERT_CHAIN_PARA ChainPara;
PCCERT_CHAIN_CONTEXT pChainContext = NULL;
HRESULT Status;
LPSTR rgszUsages[] = { szOID_PKIX_KP_CLIENT_AUTH,
szOID_SERVER_GATED_CRYPTO,
szOID_SGC_NETSCAPE };
DWORD cUsages = _countof(rgszUsages);
// Build certificate chain.
ZeroMemory(&ChainPara, sizeof(ChainPara));
ChainPara.cbSize = sizeof(ChainPara);
ChainPara.RequestedUsage.dwType = USAGE_MATCH_TYPE_OR;
ChainPara.RequestedUsage.Usage.cUsageIdentifier = cUsages;
ChainPara.RequestedUsage.Usage.rgpszUsageIdentifier = rgszUsages;
if (!CertGetCertificateChain(NULL,
pCertContext,
NULL,
pCertContext->hCertStore,
&ChainPara,
0,
NULL,
&pChainContext))
{
Status = GetLastError();
DebugMsg("Error %#x returned by CertGetCertificateChain!", Status);
goto cleanup;
}
// Validate certificate chain.
ZeroMemory(&polHttps, sizeof(HTTPSPolicyCallbackData));
polHttps.cbStruct = sizeof(HTTPSPolicyCallbackData);
polHttps.dwAuthType = AUTHTYPE_SERVER;
polHttps.fdwChecks = 0; // dwCertFlags;
polHttps.pwszServerName = NULL; // ServerName - checked elsewhere
ZeroMemory(&PolicyPara, sizeof(PolicyPara));
PolicyPara.cbSize = sizeof(PolicyPara);
PolicyPara.pvExtraPolicyPara = &polHttps;
ZeroMemory(&PolicyStatus, sizeof(PolicyStatus));
PolicyStatus.cbSize = sizeof(PolicyStatus);
if (!CertVerifyCertificateChainPolicy(CERT_CHAIN_POLICY_SSL,
pChainContext,
&PolicyPara,
&PolicyStatus))
{
Status = HRESULT_FROM_WIN32(GetLastError());
DebugMsg("Error %#x returned by CertVerifyCertificateChainPolicy!", Status);
goto cleanup;
}
if (PolicyStatus.dwError)
{
Status = S_FALSE;
//DisplayWinVerifyTrustError(PolicyStatus.dwError);
goto cleanup;
}
Status = SEC_E_OK;
cleanup:
if (pChainContext)
CertFreeCertificateChain(pChainContext);
return Status;
}
static DWORD netconn_verify_cert(netconn_t *conn, PCCERT_CONTEXT cert, HCERTSTORE store)
{
BOOL ret;
CERT_CHAIN_PARA chainPara = { sizeof(chainPara), { 0 } };
PCCERT_CHAIN_CONTEXT chain;
char oid_server_auth[] = szOID_PKIX_KP_SERVER_AUTH;
char *server_auth[] = { oid_server_auth };
DWORD err = ERROR_SUCCESS, errors;
static const DWORD supportedErrors =
CERT_TRUST_IS_NOT_TIME_VALID |
CERT_TRUST_IS_UNTRUSTED_ROOT |
CERT_TRUST_IS_PARTIAL_CHAIN |
CERT_TRUST_IS_NOT_VALID_FOR_USAGE;
TRACE("verifying %s\n", debugstr_w(conn->server->name));
chainPara.RequestedUsage.Usage.cUsageIdentifier = 1;
chainPara.RequestedUsage.Usage.rgpszUsageIdentifier = server_auth;
if (!(ret = CertGetCertificateChain(NULL, cert, NULL, store, &chainPara, 0, NULL, &chain))) {
TRACE("failed\n");
return GetLastError();
}
errors = chain->TrustStatus.dwErrorStatus;
do {
/* This seems strange, but that's what tests show */
if(errors & CERT_TRUST_IS_PARTIAL_CHAIN) {
WARN("ERROR_INTERNET_SEC_CERT_REV_FAILED\n");
err = ERROR_INTERNET_SEC_CERT_REV_FAILED;
if(conn->mask_errors)
conn->security_flags |= _SECURITY_FLAG_CERT_REV_FAILED;
if(!(conn->security_flags & SECURITY_FLAG_IGNORE_REVOCATION))
break;
}
if (chain->TrustStatus.dwErrorStatus & ~supportedErrors) {
WARN("error status %x\n", chain->TrustStatus.dwErrorStatus & ~supportedErrors);
err = conn->mask_errors && err ? ERROR_INTERNET_SEC_CERT_ERRORS : ERROR_INTERNET_SEC_INVALID_CERT;
errors &= supportedErrors;
if(!conn->mask_errors)
break;
WARN("unknown error flags\n");
}
if(errors & CERT_TRUST_IS_NOT_TIME_VALID) {
WARN("CERT_TRUST_IS_NOT_TIME_VALID\n");
if(!(conn->security_flags & SECURITY_FLAG_IGNORE_CERT_DATE_INVALID)) {
err = conn->mask_errors && err ? ERROR_INTERNET_SEC_CERT_ERRORS : ERROR_INTERNET_SEC_CERT_DATE_INVALID;
if(!conn->mask_errors)
break;
conn->security_flags |= _SECURITY_FLAG_CERT_INVALID_DATE;
}
errors &= ~CERT_TRUST_IS_NOT_TIME_VALID;
}
if(errors & CERT_TRUST_IS_UNTRUSTED_ROOT) {
WARN("CERT_TRUST_IS_UNTRUSTED_ROOT\n");
if(!(conn->security_flags & SECURITY_FLAG_IGNORE_UNKNOWN_CA)) {
err = conn->mask_errors && err ? ERROR_INTERNET_SEC_CERT_ERRORS : ERROR_INTERNET_INVALID_CA;
if(!conn->mask_errors)
break;
conn->security_flags |= _SECURITY_FLAG_CERT_INVALID_CA;
}
errors &= ~CERT_TRUST_IS_UNTRUSTED_ROOT;
}
if(errors & CERT_TRUST_IS_PARTIAL_CHAIN) {
WARN("CERT_TRUST_IS_PARTIAL_CHAIN\n");
if(!(conn->security_flags & SECURITY_FLAG_IGNORE_UNKNOWN_CA)) {
err = conn->mask_errors && err ? ERROR_INTERNET_SEC_CERT_ERRORS : ERROR_INTERNET_INVALID_CA;
if(!conn->mask_errors)
break;
conn->security_flags |= _SECURITY_FLAG_CERT_INVALID_CA;
}
errors &= ~CERT_TRUST_IS_PARTIAL_CHAIN;
}
if(errors & CERT_TRUST_IS_NOT_VALID_FOR_USAGE) {
WARN("CERT_TRUST_IS_NOT_VALID_FOR_USAGE\n");
if(!(conn->security_flags & SECURITY_FLAG_IGNORE_WRONG_USAGE)) {
err = conn->mask_errors && err ? ERROR_INTERNET_SEC_CERT_ERRORS : ERROR_INTERNET_SEC_INVALID_CERT;
if(!conn->mask_errors)
break;
WARN("CERT_TRUST_IS_NOT_VALID_FOR_USAGE, unknown error flags\n");
}
errors &= ~CERT_TRUST_IS_NOT_VALID_FOR_USAGE;
}
if(err == ERROR_INTERNET_SEC_CERT_REV_FAILED) {
assert(conn->security_flags & SECURITY_FLAG_IGNORE_REVOCATION);
err = ERROR_SUCCESS;
}
}while(0);
if(!err || conn->mask_errors) {
CERT_CHAIN_POLICY_PARA policyPara;
SSL_EXTRA_CERT_CHAIN_POLICY_PARA sslExtraPolicyPara;
CERT_CHAIN_POLICY_STATUS policyStatus;
CERT_CHAIN_CONTEXT chainCopy;
/* Clear chain->TrustStatus.dwErrorStatus so
* CertVerifyCertificateChainPolicy will verify additional checks
* rather than stopping with an existing, ignored error.
*/
memcpy(&chainCopy, chain, sizeof(chainCopy));
chainCopy.TrustStatus.dwErrorStatus = 0;
sslExtraPolicyPara.u.cbSize = sizeof(sslExtraPolicyPara);
sslExtraPolicyPara.dwAuthType = AUTHTYPE_SERVER;
sslExtraPolicyPara.pwszServerName = conn->server->name;
sslExtraPolicyPara.fdwChecks = conn->security_flags;
policyPara.cbSize = sizeof(policyPara);
policyPara.dwFlags = 0;
policyPara.pvExtraPolicyPara = &sslExtraPolicyPara;
ret = CertVerifyCertificateChainPolicy(CERT_CHAIN_POLICY_SSL,
&chainCopy, &policyPara, &policyStatus);
/* Any error in the policy status indicates that the
* policy couldn't be verified.
*/
if(ret) {
if(policyStatus.dwError == CERT_E_CN_NO_MATCH) {
WARN("CERT_E_CN_NO_MATCH\n");
if(conn->mask_errors)
conn->security_flags |= _SECURITY_FLAG_CERT_INVALID_CN;
err = conn->mask_errors && err ? ERROR_INTERNET_SEC_CERT_ERRORS : ERROR_INTERNET_SEC_CERT_CN_INVALID;
}else if(policyStatus.dwError) {
WARN("policyStatus.dwError %x\n", policyStatus.dwError);
if(conn->mask_errors)
WARN("unknown error flags for policy status %x\n", policyStatus.dwError);
err = conn->mask_errors && err ? ERROR_INTERNET_SEC_CERT_ERRORS : ERROR_INTERNET_SEC_INVALID_CERT;
}
}else {
err = GetLastError();
}
}
if(err) {
WARN("failed %u\n", err);
CertFreeCertificateChain(chain);
if(conn->server->cert_chain) {
CertFreeCertificateChain(conn->server->cert_chain);
conn->server->cert_chain = NULL;
}
if(conn->mask_errors)
conn->server->security_flags |= conn->security_flags & _SECURITY_ERROR_FLAGS_MASK;
return err;
}
/* FIXME: Reuse cached chain */
if(conn->server->cert_chain)
CertFreeCertificateChain(chain);
else
conn->server->cert_chain = chain;
return ERROR_SUCCESS;
}
int sserver_auth_protocol_connect(const struct protocol_interface *protocol, const char *auth_string)
{
CScramble scramble;
char *tmp;
int certonly;
char *client_version = NULL;
char keyfile[256];
const char *hostname = NULL;
if (!strcmp (auth_string, "BEGIN SSL VERIFICATION REQUEST"))
sserver_protocol_interface.verify_only = 1;
else if (!strcmp (auth_string, "BEGIN SSL AUTH REQUEST"))
sserver_protocol_interface.verify_only = 0;
else
return CVSPROTO_NOTME;
write(current_server()->out_fd,SSERVER_INIT_STRING,sizeof(SSERVER_INIT_STRING)-1);
if(!CGlobalSettings::GetGlobalValue("cvsnt","PServer","CertificatesOnly",keyfile,sizeof(keyfile)))
certonly = atoi(keyfile);
if(!CGlobalSettings::GetGlobalValue("cvsnt","PServer","ServerDnsName",keyfile,sizeof(keyfile)))
hostname = keyfile;
if(!ServerAuthenticate(hostname))
return CVSPROTO_AUTHFAIL;
QueryContextAttributes(&contextHandle,SECPKG_ATTR_STREAM_SIZES,&secSizes);
g_sslBufferInPos=g_sslBufferOutPos=0;
g_sslBufferInLen=g_sslBufferOutLen=0;
set_encrypted_channel(1); /* Error must go through us now */
PCERT_CONTEXT sc;
PCCERT_CHAIN_CONTEXT pcc;
CERT_SIMPLE_CHAIN *psc;
CERT_CHAIN_PARA para = { sizeof(CERT_CHAIN_PARA) };
DWORD trust,rc;
BOOL cert = FALSE;
rc = QueryContextAttributes(&contextHandle,SECPKG_ATTR_REMOTE_CERT_CONTEXT,&sc);
if(rc && rc!=SEC_E_NO_CREDENTIALS)
server_error(1,"Couldn't get client certificate");
if(rc!=SEC_E_NO_CREDENTIALS) /* The client doesn't have to send us a cert. as cvs uses passwords normally */
{
if(!CertGetCertificateChain(NULL, sc, NULL, NULL, ¶, 0, NULL, &pcc))
server_error(1,"Couldn't get client certificate chain");
psc = pcc->rgpChain[0];
trust = psc->TrustStatus.dwErrorStatus;
if (trust)
{
if (trust & (CERT_TRUST_IS_PARTIAL_CHAIN | CERT_TRUST_IS_UNTRUSTED_ROOT))
server_error(1,"Client sent self signed certificate");
else if (trust & (CERT_TRUST_IS_NOT_TIME_VALID))
server_error(1,"Client certificate expired");
else
server_error(1,"Client certificate verification failed - %08x",trust);
}
CertFreeCertificateChain(pcc);
FreeContextBuffer(sc);
cert = TRUE;
}
/* Get the three important pieces of information in order. */
/* See above comment about error handling. */
/* get version, if sent. 1.0 clients didn't have this handshake so we have to handle that. */
server_getline (protocol, &client_version, MAX_PATH);
if(strncmp(client_version,"SSERVER-CLIENT ",15))
{
sserver_protocol_interface.auth_repository = client_version;
client_version = NULL;
}
else
server_getline (protocol, &sserver_protocol_interface.auth_repository, MAX_PATH);
server_getline (protocol, &sserver_protocol_interface.auth_username, MAX_PATH);
server_getline (protocol, &sserver_protocol_interface.auth_password, MAX_PATH);
if(client_version) free(client_version);
client_version = NULL;
/* ... and make sure the protocol ends on the right foot. */
/* See above comment about error handling. */
server_getline(protocol, &tmp, MAX_PATH);
if (strcmp (tmp,
sserver_protocol_interface.verify_only ?
"END SSL VERIFICATION REQUEST" : "END SSL AUTH REQUEST")
!= 0)
{
server_printf ("bad auth protocol end: %s\n", tmp);
free(tmp);
return CVSPROTO_FAIL;
}
strcpy(sserver_protocol_interface.auth_password, scramble.Unscramble(sserver_protocol_interface.auth_password));
free(tmp);
switch(certonly)
{
case 0:
break;
case 1:
if(!cert)
{
server_error(0,"E Login requires a valid client certificate.\n");
return CVSPROTO_AUTHFAIL;
}
free(sserver_protocol_interface.auth_password);
sserver_protocol_interface.auth_password = NULL;
break;
case 2:
if(!cert)
{
server_error(0,"E Login requires a valid client certificate.\n");
return CVSPROTO_AUTHFAIL;
}
break;
};
return CVSPROTO_SUCCESS;
}
/*****************************************************************************
HrGetSignerKeyAndChain
This function retrieves a signing certificate from the local user’s
certificate store, builds certificates chain and returns key handle
for the signing key.”
NOTE:
The phCryptProvOrNCryptKey is cached and must not be released by the caller.
*****************************************************************************/
static
HRESULT
HrGetSignerKeyAndChain(
LPCWSTR wszSubject,
PCCERT_CHAIN_CONTEXT *ppChainContext,
HCRYPTPROV_OR_NCRYPT_KEY_HANDLE* phCryptProvOrNCryptKey,
DWORD *pdwKeySpec
)
{
HRESULT hr = S_FALSE;
HCERTSTORE hStore = NULL;
PCCERT_CONTEXT pCert = NULL;
BOOL fCallerFreeProvOrNCryptKey = FALSE;
CERT_CHAIN_PARA ChainPara = {0};
ChainPara.cbSize = sizeof(ChainPara);
*ppChainContext = NULL;
*phCryptProvOrNCryptKey = NULL;
*pdwKeySpec = 0;
//
// Open the local user store to search for certificates
//
hStore = CertOpenStore(
CERT_STORE_PROV_SYSTEM_W,
X509_ASN_ENCODING,
NULL,
CERT_SYSTEM_STORE_CURRENT_USER | CERT_STORE_DEFER_CLOSE_UNTIL_LAST_FREE_FLAG,
L"MY"
);
if( NULL == hStore )
{
hr = HRESULT_FROM_WIN32( GetLastError() );
goto CleanUp;
}
if( NULL != wszSubject && 0 != *wszSubject )
{
//
// Search by Name
//
while( NULL != ( pCert = CertFindCertificateInStore(
hStore,
X509_ASN_ENCODING,
0,
CERT_FIND_SUBJECT_STR,
wszSubject,
pCert
)))
{
if( CryptAcquireCertificatePrivateKey(
pCert,
CRYPT_ACQUIRE_CACHE_FLAG,
NULL,
phCryptProvOrNCryptKey,
pdwKeySpec,
&fCallerFreeProvOrNCryptKey
))
{
break;
}
}
}
else
{
//
// Get the first available certificate in the store
//
while( NULL != ( pCert = CertEnumCertificatesInStore(
hStore,
pCert
)))
{
if( CryptAcquireCertificatePrivateKey(
pCert,
CRYPT_ACQUIRE_CACHE_FLAG,
NULL,
phCryptProvOrNCryptKey,
pdwKeySpec,
&fCallerFreeProvOrNCryptKey
))
{
break;
}
}
}
if( NULL == pCert )
{
hr = CRYPT_XML_E_SIGNER;
goto CleanUp;
}
//
// Build the certificate chain without revocation check.
//
if( !CertGetCertificateChain(
NULL, // use the default chain engine
pCert, // pointer to the end certificate
NULL, // use the default time
NULL, // search no additional stores
&ChainPara,
0, // no revocation check
NULL, // currently reserved
ppChainContext )) // return a pointer to the chain created
{
hr = HRESULT_FROM_WIN32( GetLastError() );
goto CleanUp;
}
CleanUp:
if( FAILED(hr) )
{
*phCryptProvOrNCryptKey = NULL;
*pdwKeySpec = 0;
}
if( NULL != pCert )
{
CertFreeCertificateContext( pCert );
}
if( NULL != hStore )
{
CertCloseStore( hStore, 0 );
}
return hr;
}
static int KSI_PKITruststore_verifyCertificate(const KSI_PKITruststore *pki, const PCCERT_CONTEXT cert){
int res = KSI_UNKNOWN_ERROR;
KSI_CTX *ctx = NULL;
CERT_ENHKEY_USAGE enhkeyUsage;
CERT_USAGE_MATCH certUsage;
CERT_CHAIN_PARA chainPara;
PCCERT_CHAIN_CONTEXT pChainContext = NULL;
CERT_CHAIN_POLICY_PARA policyPara;
CERT_CHAIN_POLICY_STATUS policyStatus;
char buf[1024];
if (pki == NULL || cert == NULL){
res = KSI_INVALID_ARGUMENT;
goto cleanup;
}
ctx = pki->ctx;
KSI_ERR_clearErrors(ctx);
/* Get the certificate chain of certificate under verification. */
/*OID List for certificate trust list extensions*/
enhkeyUsage.cUsageIdentifier = 0;
enhkeyUsage.rgpszUsageIdentifier = NULL;
/*Criteria for identifying issuer certificate for chain building*/
certUsage.dwType = USAGE_MATCH_TYPE_AND;
certUsage.Usage = enhkeyUsage;
/*Searching and matching criteria for chain building*/
chainPara.cbSize = sizeof(CERT_CHAIN_PARA);
chainPara.RequestedUsage = certUsage;
/*Use CERT_CHAIN_CACHE_ONLY_URL_RETRIEVAL for no automatic cert store update by windows.
It is useful when there is need to remove default cert from system store*/
/*Build Certificate Chain from top to root certificate*/
if (!CertGetCertificateChain(NULL, cert, NULL, pki->collectionStore, &chainPara, 0, NULL, &pChainContext)) {
KSI_LOG_debug(pki->ctx, "%s", getMSError(GetLastError(), buf, sizeof(buf)));
KSI_pushError(ctx, res = KSI_CRYPTO_FAILURE, "Unable to get PKI certificate chain");
goto cleanup;
}
//TODO: debugging
// printCertChain(pChainContext);
/*TODO: REMOVE*/
/*If chain is based on untrusted root, determine if it's in pki->collectionStore.
If it is, enable chain verification to trust untrusted roots*/
if (pChainContext->TrustStatus.dwErrorStatus&CERT_TRUST_IS_UNTRUSTED_ROOT){
KSI_LOG_debug(ctx, "CryptoAPI: Root certificate is not present under Windows 'Trusted Root Certification Authorities'.");
KSI_LOG_debug(ctx, "CryptoAPI: Searching if it is present under PKI Trust Store from files.");
if (isUntrustedRootCertInStore(pki, pChainContext)){
policyPara.dwFlags = CERT_CHAIN_POLICY_ALLOW_UNKNOWN_CA_FLAG;
KSI_LOG_debug(ctx, "CryptoAPI: Certificate is present. Allow untrusted root certificates");
}
else{
policyPara.dwFlags = 0;
KSI_LOG_debug(ctx, "CryptoAPI: Certificate is not present.");
}
}
else if (pChainContext->TrustStatus.dwErrorStatus != CERT_TRUST_NO_ERROR) {
KSI_LOG_debug(ctx, "%s", getCertificateChainErrorStr(pChainContext));
KSI_pushError(ctx, res = KSI_PKI_CERTIFICATE_NOT_TRUSTED, getCertificateChainErrorStr(pChainContext));
goto cleanup;
}
else{
policyPara.dwFlags = 0;
}
/* Verify certificate chain. */
policyPara.cbSize = sizeof(CERT_CHAIN_POLICY_PARA);
policyPara.pvExtraPolicyPara = 0;
if (!CertVerifyCertificateChainPolicy(CERT_CHAIN_POLICY_BASE, pChainContext, &policyPara, &policyStatus)) {
KSI_LOG_debug(pki->ctx, "%s", getMSError(GetLastError(), buf, sizeof(buf)));
KSI_pushError(ctx, res = KSI_CRYPTO_FAILURE, NULL);
goto cleanup;
}
if (policyStatus.dwError) {
KSI_LOG_debug(ctx, "CryptoAPI: PKI chain policy error %X.", policyStatus.dwError);
KSI_pushError(ctx, res = KSI_PKI_CERTIFICATE_NOT_TRUSTED, NULL);
goto cleanup;
}
res = KSI_OK;
cleanup:
if (pChainContext) CertFreeCertificateChain(pChainContext);
return res;
}
static SSLSTREAM *ssl_start (TCPSTREAM *tstream,char *host,unsigned long flags)
{
SECURITY_STATUS e;
ULONG a;
TimeStamp t;
SecBuffer ibuf[2],obuf[1];
SecBufferDesc ibufs,obufs;
SCHANNEL_CRED tlscred;
CERT_CONTEXT *cert;
CERT_CHAIN_PARA chparam;
CERT_CHAIN_CONTEXT *chain;
SSL_EXTRA_CERT_CHAIN_POLICY_PARA policy;
CERT_CHAIN_POLICY_PARA polparam;
CERT_CHAIN_POLICY_STATUS status;
char tmp[MAILTMPLEN],certname[256];
char *reason = NIL;
ULONG req = ISC_REQ_REPLAY_DETECT | ISC_REQ_SEQUENCE_DETECT |
ISC_REQ_CONFIDENTIALITY | ISC_REQ_USE_SESSION_KEY |
ISC_REQ_ALLOCATE_MEMORY | ISC_REQ_STREAM | ISC_REQ_EXTENDED_ERROR |
ISC_REQ_MANUAL_CRED_VALIDATION;
LPSTR usage[] = {
szOID_PKIX_KP_SERVER_AUTH,
szOID_SERVER_GATED_CRYPTO,
szOID_SGC_NETSCAPE
};
PWSTR whost = NIL;
char *buf = (char *) fs_get (ssltsz);
unsigned long size = 0;
sslcertificatequery_t scq =
(sslcertificatequery_t) mail_parameters (NIL,GET_SSLCERTIFICATEQUERY,NIL);
sslfailure_t sf = (sslfailure_t) mail_parameters (NIL,GET_SSLFAILURE,NIL);
SSLSTREAM *stream = (SSLSTREAM *) memset (fs_get (sizeof (SSLSTREAM)),0,
sizeof (SSLSTREAM));
stream->tcpstream = tstream; /* bind TCP stream */
/* initialize TLS credential */
memset (&tlscred,0,sizeof (SCHANNEL_CRED));
tlscred.dwVersion = SCHANNEL_CRED_VERSION;
tlscred.grbitEnabledProtocols = SP_PROT_TLS1;
/* acquire credentials */
if (AcquireCredentialsHandle
(NIL,UNISP_NAME,SECPKG_CRED_OUTBOUND,NIL,(flags & NET_TLSCLIENT) ?
&tlscred : NIL,NIL,NIL,&stream->cred,&t)
!= SEC_E_OK) reason = "Acquire credentials handle failed";
else while (!reason) { /* negotiate security context */
/* initialize buffers */
ibuf[0].cbBuffer = size; ibuf[0].pvBuffer = buf;
ibuf[1].cbBuffer = 0; ibuf[1].pvBuffer = NIL;
obuf[0].cbBuffer = 0; obuf[0].pvBuffer = NIL;
ibuf[0].BufferType = obuf[0].BufferType = SECBUFFER_TOKEN;
ibuf[1].BufferType = SECBUFFER_EMPTY;
/* initialize buffer descriptors */
ibufs.ulVersion = obufs.ulVersion = SECBUFFER_VERSION;
ibufs.cBuffers = 2; obufs.cBuffers = 1;
ibufs.pBuffers = ibuf; obufs.pBuffers = obuf;
/* negotiate security */
e = InitializeSecurityContext
(&stream->cred,size ? &stream->context : NIL,host,req,0,
SECURITY_NETWORK_DREP,size? &ibufs:NIL,0,&stream->context,&obufs,&a,&t);
/* have an output buffer we need to send? */
if (obuf[0].pvBuffer && obuf[0].cbBuffer) {
if (!tcp_sout (stream->tcpstream,obuf[0].pvBuffer,obuf[0].cbBuffer))
reason = "Unexpected TCP output disconnect";
/* free the buffer */
FreeContextBuffer (obuf[0].pvBuffer);
}
if (!reason) switch (e) { /* negotiation state */
case SEC_I_INCOMPLETE_CREDENTIALS:
break; /* server wants client auth */
case SEC_I_CONTINUE_NEEDED:
if (size) { /* continue, read any data? */
/* yes, anything regurgiated back to us? */
if (ibuf[1].BufferType == SECBUFFER_EXTRA) {
/* yes, set this as the new data */
memmove (buf,buf + size - ibuf[1].cbBuffer,ibuf[1].cbBuffer);
size = ibuf[1].cbBuffer;
break;
}
size = 0; /* otherwise, read more stuff from server */
}
case SEC_E_INCOMPLETE_MESSAGE:
/* need to read more data from server */
if (!tcp_getdata (stream->tcpstream))
reason = "Unexpected TCP input disconnect";
else {
memcpy (buf+size,stream->tcpstream->iptr,stream->tcpstream->ictr);
size += stream->tcpstream->ictr;
/* empty it from TCP's buffers */
stream->tcpstream->iptr += stream->tcpstream->ictr;
stream->tcpstream->ictr = 0;
}
break;
case SEC_E_OK: /* success, any data to be regurgitated? */
if (ibuf[1].BufferType == SECBUFFER_EXTRA) {
/* yes, set this as the new data */
memmove (stream->tcpstream->iptr = stream->tcpstream->ibuf,
buf + size - ibuf[1].cbBuffer,ibuf[1].cbBuffer);
stream->tcpstream->ictr = ibuf[1].cbBuffer;
}
if (!(flags & NET_NOVALIDATECERT)) {
/* need validation, make wchar of host */
if (!((size = MultiByteToWideChar (CP_ACP,0,host,-1,NIL,0)) &&
(whost = (PWSTR) fs_get (size*sizeof (WCHAR))) &&
MultiByteToWideChar (CP_ACP,0,host,-1,whost,size)))
fatal ("Can't make wchar of host name!");
/* get certificate */
if ((QueryContextAttributes
(&stream->context,SECPKG_ATTR_REMOTE_CERT_CONTEXT,&cert) !=
SEC_E_OK) || !cert) {
reason = "*Unable to get certificate";
strcpy (certname,"<no certificate>");
}
else { /* get certificate subject name */
CertNameToStr (X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,
&cert->pCertInfo->Subject,CERT_X500_NAME_STR,
certname,255);
/* build certificate chain */
memset (&chparam,0,sizeof (chparam));
chparam.cbSize = sizeof (chparam);
chparam.RequestedUsage.dwType = USAGE_MATCH_TYPE_OR;
chparam.RequestedUsage.Usage.rgpszUsageIdentifier = usage;
chparam.RequestedUsage.Usage.cUsageIdentifier =
sizeof (usage) / sizeof (LPSTR);
if (!CertGetCertificateChain
(NIL,cert,NIL,cert->hCertStore,&chparam,NIL,NIL,&chain))
reason = ssl_analyze_status (GetLastError (),tmp);
else { /* validate certificate chain */
memset (&policy,0,sizeof (SSL_EXTRA_CERT_CHAIN_POLICY_PARA));
policy.cbStruct = sizeof (SSL_EXTRA_CERT_CHAIN_POLICY_PARA);
policy.dwAuthType = AUTHTYPE_SERVER;
policy.fdwChecks = NIL;
policy.pwszServerName = whost;
memset (&polparam,0,sizeof (polparam));
polparam.cbSize = sizeof (polparam);
polparam.pvExtraPolicyPara = &policy;
memset (&status,0,sizeof (status));
status.cbSize = sizeof (status);
if (!CertVerifyCertificateChainPolicy
(CERT_CHAIN_POLICY_SSL,chain,&polparam,&status))
reason = ssl_analyze_status (GetLastError (),tmp);
else if (status.dwError)
reason = ssl_analyze_status (status.dwError,tmp);
CertFreeCertificateChain (chain);
}
}
if (whost) fs_give ((void **) &whost);
if (reason) { /* got an error? */
/* application callback */
if (scq) reason = (*scq) ((*reason == '*') ? reason + 1 : reason,
host,certname) ? NIL : "";
else if (*certname) { /* error message to return via mm_log() */
sprintf (buf,"*%.128s: %.255s",
(*reason == '*') ? reason + 1 : reason,certname);
reason = buf;
}
}
}
if (reason ||
(reason = ssl_analyze_status
(QueryContextAttributes
(&stream->context,SECPKG_ATTR_STREAM_SIZES,&stream->sizes),buf)))
break; /* error in certificate or getting sizes */
fs_give ((void **) &buf); /* flush temporary buffer */
/* make maximum-sized buffers */
stream->bufsize = stream->sizes.cbHeader +
stream->sizes.cbMaximumMessage + stream->sizes.cbTrailer;
if (stream->sizes.cbMaximumMessage < SSLBUFLEN)
fatal ("cbMaximumMessage is less than SSLBUFLEN!");
else if (stream->sizes.cbMaximumMessage < 16384) {
sprintf (tmp,"WINDOWS BUG: cbMaximumMessage = %ld, should be 16384",
(long) stream->sizes.cbMaximumMessage);
mm_log (tmp,NIL);
}
stream->ibuf = (char *) fs_get (stream->bufsize);
stream->obuf = (char *) fs_get (stream->bufsize);
return stream;
default:
reason = ssl_analyze_status (e,buf);
}
}
ssl_close (stream); /* failed to do SSL */
stream = NIL; /* no stream returned */
switch (*reason) { /* analyze reason */
case '*': /* certificate failure */
++reason; /* skip over certificate failure indication */
/* pass to error callback */
if (sf) (*sf) (host,reason,flags);
else { /* no error callback, build error message */
sprintf (tmp,"Certificate failure for %.80s: %.512s",host,reason);
mm_log (tmp,ERROR);
}
case '\0': /* user answered no to certificate callback */
if (flags & NET_TRYSSL) /* return dummy stream to stop tryssl */
stream = (SSLSTREAM *) memset (fs_get (sizeof (SSLSTREAM)),0,
sizeof (SSLSTREAM));
break;
default: /* non-certificate failure */
if (flags & NET_TRYSSL); /* no error output if tryssl */
/* pass to error callback */
else if (sf) (*sf) (host,reason,flags);
else { /* no error callback, build error message */
sprintf (tmp,"TLS/SSL failure for %.80s: %.512s",host,reason);
mm_log (tmp,ERROR);
}
break;
}
fs_give ((void **) &buf); /* flush temporary buffer */
return stream;
}
/* sqVerifyCert: Verify the validity of the remote certificate */
static int sqVerifyCert(sqSSL *ssl, int isServer) {
SECURITY_STATUS ret;
PCCERT_CONTEXT certHandle = NULL;
PCCERT_CHAIN_CONTEXT chainContext = NULL;
CERT_CHAIN_PARA chainPara;
SSL_EXTRA_CERT_CHAIN_POLICY_PARA epp;
CERT_CHAIN_POLICY_PARA policyPara;
CERT_CHAIN_POLICY_STATUS policyStatus;
static LPSTR serverUsage[] = {
szOID_PKIX_KP_SERVER_AUTH,
szOID_SERVER_GATED_CRYPTO,
szOID_SGC_NETSCAPE
};
static LPSTR clientUsage[] = {
szOID_PKIX_KP_CLIENT_AUTH
};
ret = QueryContextAttributes(&ssl->sslCtxt, SECPKG_ATTR_REMOTE_CERT_CONTEXT, (PVOID)&certHandle);
/* No credentials were provided */
if(ret == SEC_E_NO_CREDENTIALS) {
ssl->certFlags = SQSSL_NO_CERTIFICATE;
return 1;
}
memset(&chainPara, 0, sizeof(chainPara));
chainPara.cbSize = sizeof(chainPara);
chainPara.RequestedUsage.dwType = USAGE_MATCH_TYPE_OR;
if(!isServer) {
chainPara.RequestedUsage.Usage.cUsageIdentifier = 3;
chainPara.RequestedUsage.Usage.rgpszUsageIdentifier = serverUsage;
} else {
chainPara.RequestedUsage.Usage.cUsageIdentifier = 1;
chainPara.RequestedUsage.Usage.rgpszUsageIdentifier = clientUsage;
}
if(!CertGetCertificateChain(NULL, certHandle, NULL,
certHandle->hCertStore,
&chainPara, 0, NULL, &chainContext)) {
CertFreeCertificateContext(certHandle);
ssl->certFlags = SQSSL_OTHER_ISSUE;
goto done;
}
memset(&epp, 0, sizeof(epp));
epp.cbSize = sizeof(epp);
epp.dwAuthType = AUTHTYPE_SERVER;
epp.fdwChecks = 0;
epp.pwszServerName = NULL;
memset(&policyPara, 0, sizeof(policyPara));
policyPara.cbSize = sizeof(policyPara);
policyPara.dwFlags = 0;
policyPara.pvExtraPolicyPara = &epp;
memset(&policyStatus, 0, sizeof(policyStatus));
policyStatus.cbSize = sizeof(policyStatus);
/* We loop here CertVerifyCertificateChainPolicy() returns only a
single error even if there is more than one issue with the cert. */
ssl->certFlags = 0;
while(true) {
if (!CertVerifyCertificateChainPolicy(
CERT_CHAIN_POLICY_SSL,
chainContext,
&policyPara,
&policyStatus)) {
ssl->certFlags |= SQSSL_OTHER_ISSUE;
goto done;
}
switch(policyStatus.dwError) {
case SEC_E_OK:
goto done;
case CERT_E_UNTRUSTEDROOT:
if(ssl->certFlags & SQSSL_UNTRUSTED_ROOT) goto done;
ssl->certFlags |= SQSSL_UNTRUSTED_ROOT;
epp.fdwChecks |= 0x00000100; /* SECURITY_FLAG_IGNORE_UNKNOWN_CA */
break;
case CERT_E_EXPIRED:
if(ssl->certFlags & SQSSL_CERT_EXPIRED) goto done;
ssl->certFlags |= SQSSL_CERT_EXPIRED;
epp.fdwChecks |= 0x00002000; /* SECURITY_FLAG_IGNORE_CERT_DATE_INVALID */
break;
case CERT_E_WRONG_USAGE:
if(ssl->certFlags & SQSSL_WRONG_USAGE) goto done;
ssl->certFlags |= SQSSL_WRONG_USAGE;
epp.fdwChecks |= 0x00000200; /* SECURITY_FLAG_IGNORE_WRONG_USAGE */
case CERT_E_REVOKED:
if(ssl->certFlags & SQSSL_CERT_REVOKED) goto done;
ssl->certFlags |= SQSSL_CERT_REVOKED;
epp.fdwChecks |= 0x00000080; /* SECURITY_FLAG_IGNORE_REVOCATION */
break;
default:
ssl->certFlags |= SQSSL_OTHER_ISSUE;
goto done;
}
}
done:
CertFreeCertificateChain(chainContext);
CertFreeCertificateContext(certHandle);
return 1;
}
int sserver_connect(const struct protocol_interface *protocol, int verify_only)
{
char crypt_password[64];
char server_version[128];
char tmp_keyname[256];
const char *begin_request = "BEGIN SSL AUTH REQUEST";
const char *end_request = "END SSL AUTH REQUEST";
const char *username = NULL;
const char *cert = current_server()->current_root->optional_3;
int l;
int sserver_version = 0;
int strict = 0;
CScramble scramble;
bool send_client_version = false;
if(current_server()->current_root->optional_1)
{
sserver_version = atoi(current_server()->current_root->optional_1);
if(sserver_version != 0 && sserver_version != 1)
{
server_error(0,"version must be one of:");
server_error(0,"0 - All CVSNT-type servers");
server_error(0,"1 - Unix server using Corey Minards' sserver patches");
server_error(1,"Please specify a valid value");
}
}
if(!CGlobalSettings::GetUserValue("cvsnt","sserver","StrictChecking",server_version,sizeof(server_version)))
{
strict = atoi(server_version);
}
if(!cert && !CGlobalSettings::GetUserValue("cvsnt","sserver","ClientCert",tmp_keyname,sizeof(tmp_keyname)))
{
cert = tmp_keyname;
}
if(current_server()->current_root->optional_2)
strict = atoi(current_server()->current_root->optional_2);
if(sserver_version == 1) /* Old sserver */
{
begin_request = verify_only?"BEGIN SSL VERIFICATION REQUEST":"BEGIN SSL REQUEST";
end_request = verify_only?"END SSL VERIFICATION REQUEST":"END SSL REQUEST";
}
else if(verify_only)
{
begin_request = "BEGIN SSL VERIFICATION REQUEST";
end_request = "END SSL VERIFICATION REQUEST";
}
username = get_username(current_server()->current_root);
if(!username || !current_server()->current_root->hostname || !current_server()->current_root->directory)
return CVSPROTO_BADPARMS;
if(tcp_connect(current_server()->current_root))
return CVSPROTO_FAIL;
if(current_server()->current_root->password)
strncpy(crypt_password,scramble.Scramble(current_server()->current_root->password),sizeof(crypt_password));
else
{
if(sserver_get_user_password(username,current_server()->current_root->hostname,current_server()->current_root->port,current_server()->current_root->directory,crypt_password,sizeof(crypt_password)))
{
/* Using null password - trace something out here */
server_error(0,"Using an empty password; you may need to do 'cvs login' with a real password\n");
strncpy(crypt_password,scramble.Scramble(""),sizeof(crypt_password));
}
}
if(sserver_version == 0) /* Pre-CVSNT had no version check */
{
if(tcp_printf("%s\n",begin_request)<0)
return CVSPROTO_FAIL;
for(;;)
{
*server_version='\0';
if((l=tcp_readline(server_version,sizeof(server_version))<0))
return CVSPROTO_FAIL;
if(*server_version)
break;
#ifdef _WIN32
Sleep(10);
#else
usleep(10);
#endif
}
if(strncmp(server_version,"SSERVER ",8))
{
server_error(0,"%s\n",server_version);
return CVSPROTO_FAIL;
}
if(strncmp(server_version+8,"1.0 ",4))
send_client_version = true;
}
if(!ClientAuthenticate(cert,current_server()->current_root->hostname))
return CVSPROTO_AUTHFAIL;
QueryContextAttributes(&contextHandle,SECPKG_ATTR_STREAM_SIZES,&secSizes);
PCERT_CONTEXT sc;
PCCERT_CHAIN_CONTEXT pcc;
CERT_SIMPLE_CHAIN *psc;
CERT_CHAIN_PARA para = { sizeof(CERT_CHAIN_PARA) };
DWORD trust,rc;
rc = QueryContextAttributes(&contextHandle,SECPKG_ATTR_REMOTE_CERT_CONTEXT,&sc);
if(rc)
server_error(1,"Couldn't get server certificate");
if(!CertGetCertificateChain(NULL, sc, NULL, NULL, ¶, 0, NULL, &pcc))
server_error(1,"Couldn't get server certificate chain");
psc = pcc->rgpChain[0];
trust = psc->TrustStatus.dwErrorStatus;
if (trust)
{
if (trust & (CERT_TRUST_IS_PARTIAL_CHAIN | CERT_TRUST_IS_UNTRUSTED_ROOT))
; // Seld signed
else if (trust & (CERT_TRUST_IS_NOT_TIME_VALID))
server_error(1,"Server certificate expired");
else
server_error(1,"Server certificate verification failed - %08x",trust);
}
if(strict)
{
char certname[256];
CertGetNameString(sc, CERT_NAME_DNS_TYPE, 0, NULL, certname, sizeof(certname));
if(strcasecmp(certname,current_server()->current_root->hostname))
server_error(1, "Certificate CommonName '%s' does not match server name '%s'\n",certname,current_server()->current_root->hostname);
}
CertFreeCertificateChain(pcc);
FreeContextBuffer(sc);
g_sslBufferInPos=g_sslBufferOutPos=0;
g_sslBufferInLen=g_sslBufferOutLen=0;
if(sserver_version == 1)
{
if(sserver_printf("%s\n",begin_request)<0)
return CVSPROTO_FAIL;
}
// For server versions 1.1+ send CLIENT_VERSION_STRING
if(send_client_version && sserver_printf(SSERVER_CLIENT_VERSION_STRING)<0)
return CVSPROTO_FAIL;
if(sserver_printf("%s\n%s\n",current_server()->current_root->directory,username)<0)
return CVSPROTO_FAIL;
if(sserver_printf("%s\n",crypt_password)<0)
return CVSPROTO_FAIL;
if(sserver_printf("%s\n",end_request)<0)
return CVSPROTO_FAIL;
return CVSPROTO_SUCCESS;
}
static DWORD netconn_verify_cert( PCCERT_CONTEXT cert, HCERTSTORE store,
WCHAR *server )
{
BOOL ret;
CERT_CHAIN_PARA chainPara = { sizeof(chainPara), { 0 } };
PCCERT_CHAIN_CONTEXT chain;
char oid_server_auth[] = szOID_PKIX_KP_SERVER_AUTH;
char *server_auth[] = { oid_server_auth };
DWORD err = ERROR_SUCCESS;
TRACE("verifying %s\n", debugstr_w( server ));
chainPara.RequestedUsage.Usage.cUsageIdentifier = 1;
chainPara.RequestedUsage.Usage.rgpszUsageIdentifier = server_auth;
if ((ret = CertGetCertificateChain( NULL, cert, NULL, store, &chainPara, 0,
NULL, &chain )))
{
if (chain->TrustStatus.dwErrorStatus)
{
if (chain->TrustStatus.dwErrorStatus & CERT_TRUST_IS_NOT_TIME_VALID)
err = ERROR_WINHTTP_SECURE_CERT_DATE_INVALID;
else if (chain->TrustStatus.dwErrorStatus &
CERT_TRUST_IS_UNTRUSTED_ROOT)
err = ERROR_WINHTTP_SECURE_INVALID_CA;
else if ((chain->TrustStatus.dwErrorStatus &
CERT_TRUST_IS_OFFLINE_REVOCATION) ||
(chain->TrustStatus.dwErrorStatus &
CERT_TRUST_REVOCATION_STATUS_UNKNOWN))
err = ERROR_WINHTTP_SECURE_CERT_REV_FAILED;
else if (chain->TrustStatus.dwErrorStatus & CERT_TRUST_IS_REVOKED)
err = ERROR_WINHTTP_SECURE_CERT_REVOKED;
else if (chain->TrustStatus.dwErrorStatus &
CERT_TRUST_IS_NOT_VALID_FOR_USAGE)
err = ERROR_WINHTTP_SECURE_CERT_WRONG_USAGE;
else
err = ERROR_WINHTTP_SECURE_INVALID_CERT;
}
else
{
CERT_CHAIN_POLICY_PARA policyPara;
SSL_EXTRA_CERT_CHAIN_POLICY_PARA sslExtraPolicyPara;
CERT_CHAIN_POLICY_STATUS policyStatus;
sslExtraPolicyPara.u.cbSize = sizeof(sslExtraPolicyPara);
sslExtraPolicyPara.dwAuthType = AUTHTYPE_SERVER;
sslExtraPolicyPara.pwszServerName = server;
policyPara.cbSize = sizeof(policyPara);
policyPara.dwFlags = 0;
policyPara.pvExtraPolicyPara = &sslExtraPolicyPara;
ret = CertVerifyCertificateChainPolicy( CERT_CHAIN_POLICY_SSL,
chain, &policyPara,
&policyStatus );
/* Any error in the policy status indicates that the
* policy couldn't be verified.
*/
if (ret && policyStatus.dwError)
{
if (policyStatus.dwError == CERT_E_CN_NO_MATCH)
err = ERROR_WINHTTP_SECURE_CERT_CN_INVALID;
else
err = ERROR_WINHTTP_SECURE_INVALID_CERT;
}
}
CertFreeCertificateChain( chain );
}
else
err = ERROR_WINHTTP_SECURE_CHANNEL_ERROR;
TRACE("returning %08x\n", err);
return err;
}
static CURLcode verify_certificate(struct connectdata *conn, int sockindex)
{
SECURITY_STATUS status;
struct SessionHandle *data = conn->data;
struct ssl_connect_data *connssl = &conn->ssl[sockindex];
CURLcode result = CURLE_OK;
CERT_CONTEXT *pCertContextServer = NULL;
const CERT_CHAIN_CONTEXT *pChainContext = NULL;
status = s_pSecFn->QueryContextAttributes(&connssl->ctxt->ctxt_handle,
SECPKG_ATTR_REMOTE_CERT_CONTEXT,
&pCertContextServer);
if((status != SEC_E_OK) || (pCertContextServer == NULL)) {
failf(data, "schannel: Failed to read remote certificate context: %s",
Curl_sspi_strerror(conn, status));
result = CURLE_PEER_FAILED_VERIFICATION;
}
if(result == CURLE_OK) {
CERT_CHAIN_PARA ChainPara;
memset(&ChainPara, 0, sizeof(ChainPara));
ChainPara.cbSize = sizeof(ChainPara);
if(!CertGetCertificateChain(NULL,
pCertContextServer,
NULL,
pCertContextServer->hCertStore,
&ChainPara,
0,
NULL,
&pChainContext)) {
failf(data, "schannel: CertGetCertificateChain failed: %s",
Curl_sspi_strerror(conn, GetLastError()));
pChainContext = NULL;
result = CURLE_PEER_FAILED_VERIFICATION;
}
if(result == CURLE_OK) {
CERT_SIMPLE_CHAIN *pSimpleChain = pChainContext->rgpChain[0];
DWORD dwTrustErrorMask = ~(DWORD)(CERT_TRUST_IS_NOT_TIME_NESTED|
CERT_TRUST_REVOCATION_STATUS_UNKNOWN);
dwTrustErrorMask &= pSimpleChain->TrustStatus.dwErrorStatus;
if(dwTrustErrorMask) {
if(dwTrustErrorMask & CERT_TRUST_IS_PARTIAL_CHAIN)
failf(data, "schannel: CertGetCertificateChain trust error"
" CERT_TRUST_IS_PARTIAL_CHAIN");
if(dwTrustErrorMask & CERT_TRUST_IS_UNTRUSTED_ROOT)
failf(data, "schannel: CertGetCertificateChain trust error"
" CERT_TRUST_IS_UNTRUSTED_ROOT");
if(dwTrustErrorMask & CERT_TRUST_IS_NOT_TIME_VALID)
failf(data, "schannel: CertGetCertificateChain trust error"
" CERT_TRUST_IS_NOT_TIME_VALID");
failf(data, "schannel: CertGetCertificateChain error mask: 0x%08x",
dwTrustErrorMask);
result = CURLE_PEER_FAILED_VERIFICATION;
}
}
}
if(result == CURLE_OK) {
if(data->set.ssl.verifyhost) {
TCHAR cert_hostname_buff[128];
xcharp_u hostname;
xcharp_u cert_hostname;
DWORD len;
cert_hostname.const_tchar_ptr = cert_hostname_buff;
hostname.tchar_ptr = Curl_convert_UTF8_to_tchar(conn->host.name);
len = CertGetNameString(pCertContextServer,
CERT_NAME_DNS_TYPE,
0,
NULL,
cert_hostname.tchar_ptr,
128);
if(len > 0 && *cert_hostname.tchar_ptr == '*') {
/* this is a wildcard cert. try matching the last len - 1 chars */
int hostname_len = strlen(conn->host.name);
cert_hostname.tchar_ptr++;
if(_tcsicmp(cert_hostname.const_tchar_ptr,
hostname.const_tchar_ptr + hostname_len - len + 2) != 0)
result = CURLE_PEER_FAILED_VERIFICATION;
}
else if(len == 0 || _tcsicmp(hostname.const_tchar_ptr,
cert_hostname.const_tchar_ptr) != 0) {
result = CURLE_PEER_FAILED_VERIFICATION;
}
if(result == CURLE_PEER_FAILED_VERIFICATION) {
char *_cert_hostname;
_cert_hostname = Curl_convert_tchar_to_UTF8(cert_hostname.tchar_ptr);
failf(data, "schannel: CertGetNameString() certificate hostname "
"(%s) did not match connection (%s)",
_cert_hostname, conn->host.name);
Curl_unicodefree(_cert_hostname);
}
Curl_unicodefree(hostname.tchar_ptr);
}
}
if(pChainContext)
CertFreeCertificateChain(pChainContext);
if(pCertContextServer)
CertFreeCertificateContext(pCertContextServer);
return result;
}
static bool VerifyCertificate(SslHandle *ssl, PCSTR pszServerName, DWORD dwCertFlags)
{
static LPSTR rgszUsages[] =
{
szOID_PKIX_KP_SERVER_AUTH,
szOID_SERVER_GATED_CRYPTO,
szOID_SGC_NETSCAPE
};
CERT_CHAIN_PARA ChainPara = { 0 };
HTTPSPolicyCallbackData polHttps = { 0 };
CERT_CHAIN_POLICY_PARA PolicyPara = { 0 };
CERT_CHAIN_POLICY_STATUS PolicyStatus = { 0 };
PCCERT_CHAIN_CONTEXT pChainContext = NULL;
PCCERT_CONTEXT pServerCert = NULL;
DWORD scRet;
PWSTR pwszServerName = mir_a2u(pszServerName);
scRet = g_pSSPI->QueryContextAttributes(&ssl->hContext, SECPKG_ATTR_REMOTE_CERT_CONTEXT, &pServerCert);
if (scRet != SEC_E_OK)
goto cleanup;
if (pServerCert == NULL) {
scRet = SEC_E_WRONG_PRINCIPAL;
goto cleanup;
}
ChainPara.cbSize = sizeof(ChainPara);
ChainPara.RequestedUsage.dwType = USAGE_MATCH_TYPE_OR;
ChainPara.RequestedUsage.Usage.cUsageIdentifier = _countof(rgszUsages);
ChainPara.RequestedUsage.Usage.rgpszUsageIdentifier = rgszUsages;
if (!CertGetCertificateChain(NULL, pServerCert, NULL, pServerCert->hCertStore, &ChainPara, 0, NULL, &pChainContext)) {
scRet = GetLastError();
goto cleanup;
}
polHttps.cbStruct = sizeof(HTTPSPolicyCallbackData);
polHttps.dwAuthType = AUTHTYPE_SERVER;
polHttps.fdwChecks = dwCertFlags;
polHttps.pwszServerName = pwszServerName;
PolicyPara.cbSize = sizeof(PolicyPara);
PolicyPara.pvExtraPolicyPara = &polHttps;
PolicyStatus.cbSize = sizeof(PolicyStatus);
if (!CertVerifyCertificateChainPolicy(CERT_CHAIN_POLICY_SSL, pChainContext, &PolicyPara, &PolicyStatus)) {
scRet = GetLastError();
goto cleanup;
}
if (PolicyStatus.dwError) {
scRet = PolicyStatus.dwError;
goto cleanup;
}
scRet = SEC_E_OK;
cleanup:
if (pChainContext)
CertFreeCertificateChain(pChainContext);
if (pServerCert)
CertFreeCertificateContext(pServerCert);
mir_free(pwszServerName);
ReportSslError(scRet, __LINE__, true);
return scRet == SEC_E_OK;
}
/***********************************************************************
* CertTrustFinalPolicy (CRYPTDLG.@)
*/
HRESULT WINAPI CertTrustFinalPolicy(CRYPT_PROVIDER_DATA *data)
{
BOOL ret;
DWORD err = S_OK;
CERT_VERIFY_CERTIFICATE_TRUST *pCert = CRYPTDLG_GetVerifyData(data);
TRACE("(%p)\n", data);
if (data->pWintrustData->dwUIChoice != WTD_UI_NONE)
FIXME("unimplemented for UI choice %d\n",
data->pWintrustData->dwUIChoice);
if (pCert)
{
DWORD flags = 0;
CERT_CHAIN_PARA chainPara;
HCERTCHAINENGINE engine;
memset(&chainPara, 0, sizeof(chainPara));
chainPara.cbSize = sizeof(chainPara);
if (CRYPTDLG_CheckOnlineCRL())
flags |= CERT_CHAIN_REVOCATION_CHECK_END_CERT;
engine = CRYPTDLG_MakeEngine(pCert);
GetSystemTimeAsFileTime(&data->sftSystemTime);
ret = CRYPTDLG_IsCertAllowed(pCert->pccert);
if (ret)
{
PCCERT_CHAIN_CONTEXT chain;
ret = CertGetCertificateChain(engine, pCert->pccert,
&data->sftSystemTime, NULL, &chainPara, flags, NULL, &chain);
if (ret)
{
if (chain->cChain != 1)
{
FIXME("unimplemented for more than 1 simple chain\n");
err = TRUST_E_SUBJECT_FORM_UNKNOWN;
ret = FALSE;
}
else if ((ret = CRYPTDLG_CopyChain(data, chain)))
{
if (CertVerifyTimeValidity(&data->sftSystemTime,
pCert->pccert->pCertInfo))
{
ret = FALSE;
err = CERT_E_EXPIRED;
}
}
else
err = TRUST_E_SYSTEM_ERROR;
CertFreeCertificateChain(chain);
}
else
err = TRUST_E_SUBJECT_NOT_TRUSTED;
}
CertFreeCertificateChainEngine(engine);
}
else
{
ret = FALSE;
err = TRUST_E_NOSIGNATURE;
}
/* Oddly, native doesn't set the error in the trust step error location,
* probably because this action is more advisory than anything else.
* Instead it stores it as the final error, but the function "succeeds" in
* any case.
*/
if (!ret)
data->dwFinalError = err;
TRACE("returning %d (%08x)\n", S_OK, data->dwFinalError);
return S_OK;
}
static void check_and_store_certs(HCERTSTORE from, HCERTSTORE to)
{
DWORD root_count = 0;
CERT_CHAIN_ENGINE_CONFIG chainEngineConfig =
{ sizeof(chainEngineConfig), 0 };
HCERTCHAINENGINE engine;
TRACE("\n");
CertDuplicateStore(to);
engine = CRYPT_CreateChainEngine(to, CERT_SYSTEM_STORE_CURRENT_USER, &chainEngineConfig);
if (engine)
{
PCCERT_CONTEXT cert = NULL;
do {
cert = CertEnumCertificatesInStore(from, cert);
if (cert)
{
CERT_CHAIN_PARA chainPara = { sizeof(chainPara), { 0 } };
PCCERT_CHAIN_CONTEXT chain;
BOOL ret;
ret = CertGetCertificateChain(engine, cert, NULL, from,
&chainPara, CERT_CHAIN_CACHE_ONLY_URL_RETRIEVAL, NULL, &chain);
if (!ret)
TRACE("rejecting %s: %s\n", get_cert_common_name(cert),
"chain creation failed");
else
{
DWORD allowedErrors = CERT_TRUST_IS_UNTRUSTED_ROOT |
CERT_TRUST_IS_NOT_VALID_FOR_USAGE |
CERT_TRUST_INVALID_BASIC_CONSTRAINTS |
CERT_TRUST_IS_NOT_TIME_VALID;
/* The certificate chain verification only allows certain
* invalid CA certs if they're installed locally: CA
* certs missing the key usage extension, and CA certs
* missing the basic constraints extension. Of course
* there's a chicken and egg problem: we have to accept
* them here in order for them to be accepted later.
* Expired, locally installed certs are also allowed here,
* because we don't know (yet) what date will be checked
* for an item signed by one of these certs.
* Thus, accept certs with any of the allowed errors.
*/
if (chain->TrustStatus.dwErrorStatus & ~allowedErrors)
TRACE("rejecting %s: %s\n", get_cert_common_name(cert),
trust_status_to_str(chain->TrustStatus.dwErrorStatus &
~CERT_TRUST_IS_UNTRUSTED_ROOT));
else
{
DWORD i, j;
for (i = 0; i < chain->cChain; i++)
for (j = 0; j < chain->rgpChain[i]->cElement; j++)
if (CertAddCertificateContextToStore(to,
chain->rgpChain[i]->rgpElement[j]->pCertContext,
CERT_STORE_ADD_NEW, NULL))
root_count++;
}
CertFreeCertificateChain(chain);
}
}
} while (cert);
CertFreeCertificateChainEngine(engine);
}
TRACE("Added %d root certificates\n", root_count);
}
static DWORD netconn_verify_cert( PCCERT_CONTEXT cert, HCERTSTORE store,
WCHAR *server, DWORD security_flags )
{
BOOL ret;
CERT_CHAIN_PARA chainPara = { sizeof(chainPara), { 0 } };
PCCERT_CHAIN_CONTEXT chain;
char oid_server_auth[] = szOID_PKIX_KP_SERVER_AUTH;
char *server_auth[] = { oid_server_auth };
DWORD err = ERROR_SUCCESS;
TRACE("verifying %s\n", debugstr_w( server ));
chainPara.RequestedUsage.Usage.cUsageIdentifier = 1;
chainPara.RequestedUsage.Usage.rgpszUsageIdentifier = server_auth;
if ((ret = CertGetCertificateChain( NULL, cert, NULL, store, &chainPara,
CERT_CHAIN_REVOCATION_CHECK_CHAIN_EXCLUDE_ROOT,
NULL, &chain )))
{
if (chain->TrustStatus.dwErrorStatus)
{
static const DWORD supportedErrors =
CERT_TRUST_IS_NOT_TIME_VALID |
CERT_TRUST_IS_UNTRUSTED_ROOT |
CERT_TRUST_IS_NOT_VALID_FOR_USAGE;
if (chain->TrustStatus.dwErrorStatus & CERT_TRUST_IS_NOT_TIME_VALID)
{
if (!(security_flags & SECURITY_FLAG_IGNORE_CERT_DATE_INVALID))
err = ERROR_WINHTTP_SECURE_CERT_DATE_INVALID;
}
else if (chain->TrustStatus.dwErrorStatus &
CERT_TRUST_IS_UNTRUSTED_ROOT)
{
if (!(security_flags & SECURITY_FLAG_IGNORE_UNKNOWN_CA))
err = ERROR_WINHTTP_SECURE_INVALID_CA;
}
else if ((chain->TrustStatus.dwErrorStatus &
CERT_TRUST_IS_OFFLINE_REVOCATION) ||
(chain->TrustStatus.dwErrorStatus &
CERT_TRUST_REVOCATION_STATUS_UNKNOWN))
err = ERROR_WINHTTP_SECURE_CERT_REV_FAILED;
else if (chain->TrustStatus.dwErrorStatus & CERT_TRUST_IS_REVOKED)
err = ERROR_WINHTTP_SECURE_CERT_REVOKED;
else if (chain->TrustStatus.dwErrorStatus &
CERT_TRUST_IS_NOT_VALID_FOR_USAGE)
{
if (!(security_flags & SECURITY_FLAG_IGNORE_CERT_WRONG_USAGE))
err = ERROR_WINHTTP_SECURE_CERT_WRONG_USAGE;
}
else if (chain->TrustStatus.dwErrorStatus & ~supportedErrors)
err = ERROR_WINHTTP_SECURE_INVALID_CERT;
}
if (!err)
{
CERT_CHAIN_POLICY_PARA policyPara;
SSL_EXTRA_CERT_CHAIN_POLICY_PARA sslExtraPolicyPara;
CERT_CHAIN_POLICY_STATUS policyStatus;
CERT_CHAIN_CONTEXT chainCopy;
/* Clear chain->TrustStatus.dwErrorStatus so
* CertVerifyCertificateChainPolicy will verify additional checks
* rather than stopping with an existing, ignored error.
*/
memcpy(&chainCopy, chain, sizeof(chainCopy));
chainCopy.TrustStatus.dwErrorStatus = 0;
sslExtraPolicyPara.u.cbSize = sizeof(sslExtraPolicyPara);
sslExtraPolicyPara.dwAuthType = AUTHTYPE_SERVER;
sslExtraPolicyPara.pwszServerName = server;
sslExtraPolicyPara.fdwChecks = security_flags;
policyPara.cbSize = sizeof(policyPara);
policyPara.dwFlags = 0;
policyPara.pvExtraPolicyPara = &sslExtraPolicyPara;
ret = CertVerifyCertificateChainPolicy( CERT_CHAIN_POLICY_SSL,
&chainCopy, &policyPara,
&policyStatus );
/* Any error in the policy status indicates that the
* policy couldn't be verified.
*/
if (ret && policyStatus.dwError)
{
if (policyStatus.dwError == CERT_E_CN_NO_MATCH)
err = ERROR_WINHTTP_SECURE_CERT_CN_INVALID;
else
err = ERROR_WINHTTP_SECURE_INVALID_CERT;
}
}
CertFreeCertificateChain( chain );
}
else
err = ERROR_WINHTTP_SECURE_CHANNEL_ERROR;
TRACE("returning %08x\n", err);
return err;
}
/*****************************************************************************
wmain
*****************************************************************************/
DWORD
__cdecl
wmain(
int argc,
LPWSTR argv[]
)
{
HRESULT hr = S_OK;
int i = 0;
BOOL fPeerTrust = FALSE;
DWORD dwChainFlags = CERT_CHAIN_REVOCATION_CHECK_CHAIN_EXCLUDE_ROOT;
LPCWSTR wsCertFile = NULL;
LPCWSTR wsStoreFile = NULL;
PCCERT_CONTEXT pCert = NULL;
HCERTSTORE hStore = NULL;
HCERTCHAINENGINE hChainEngine = NULL;
PCCERT_CHAIN_CONTEXT pChainContext = NULL;
CERT_ENHKEY_USAGE EnhkeyUsage = {0};
CERT_USAGE_MATCH CertUsage = {0};
CERT_CHAIN_PARA ChainPara = {0};
CERT_CHAIN_POLICY_PARA ChainPolicy = {0};
CERT_CHAIN_POLICY_STATUS PolicyStatus = {0};
CERT_CHAIN_ENGINE_CONFIG EngineConfig = {0};
//---------------------------------------------------------
// Initialize data structures for chain building.
EnhkeyUsage.cUsageIdentifier = 0;
EnhkeyUsage.rgpszUsageIdentifier=NULL;
CertUsage.dwType = USAGE_MATCH_TYPE_AND;
CertUsage.Usage = EnhkeyUsage;
ChainPara.cbSize = sizeof(ChainPara);
ChainPara.RequestedUsage=CertUsage;
ChainPolicy.cbSize = sizeof(ChainPolicy);
PolicyStatus.cbSize = sizeof(PolicyStatus);
EngineConfig.cbSize = sizeof(EngineConfig);
EngineConfig.dwUrlRetrievalTimeout = 0;
//
// options
//
for( i=1; i<argc; i++ )
{
if ( lstrcmpW (argv[i], L"/?") == 0 ||
lstrcmpW (argv[i], L"-?") == 0 )
{
Usage(argv[0]);
goto CleanUp;
}
if( *argv[i] != L'-' )
break;
if ( lstrcmpW (argv[i], L"-fc") == 0 )
{
if( i+1 >= argc )
{
goto InvalidCommandLine;
}
dwChainFlags = (DWORD)wcstoul( argv[++i], NULL, 0 );
}
else
if ( lstrcmpW (argv[i], L"-fe") == 0 )
{
if( i+1 >= argc )
{
goto InvalidCommandLine;
}
EngineConfig.dwFlags = (DWORD)wcstoul( argv[++i], NULL, 0 );
}
else
if ( lstrcmpW (argv[i], L"-p") == 0 )
{
fPeerTrust = TRUE;
}
else
{
goto InvalidCommandLine;
}
}
if( i >= argc )
{
goto InvalidCommandLine;
}
wsStoreFile = argv[i++];
if( i < argc )
{
wsCertFile = argv[i];
}
hStore = CertOpenStore(
CERT_STORE_PROV_FILENAME_W,
X509_ASN_ENCODING,
NULL,
CERT_STORE_DEFER_CLOSE_UNTIL_LAST_FREE_FLAG,
wsStoreFile
);
if( NULL == hStore )
{
hr = HRESULT_FROM_WIN32( GetLastError() );
goto CleanUp;
}
if( NULL != wsCertFile && 0 != *wsCertFile )
{
if( !CryptQueryObject(
CERT_QUERY_OBJECT_FILE,
wsCertFile,
CERT_QUERY_CONTENT_FLAG_CERT |
CERT_QUERY_CONTENT_SERIALIZED_CERT
,
CERT_QUERY_FORMAT_FLAG_ALL,
0, // dwFlags,
0, // pdwMsgAndCertEncodingType,
0, // pdwContentType,
0, // pdwFormatType,
0, // phCertStore,
0, // phMsg,
(const void**)&pCert
))
{
hr = HRESULT_FROM_WIN32( GetLastError() );
goto CleanUp;
}
}
else
{
pCert = CertFindCertificateInStore(
hStore,
X509_ASN_ENCODING,
0,
CERT_FIND_ANY,
NULL,
NULL
);
if( NULL == pCert )
{
hr = CRYPT_E_NOT_FOUND;
goto CleanUp;
}
}
if( fPeerTrust )
{
EngineConfig.hExclusiveTrustedPeople = hStore; // Exclusive peer trust
dwChainFlags |= CERT_CHAIN_ENABLE_PEER_TRUST;
}
else
{
EngineConfig.hExclusiveRoot = hStore; // Exclusive root
}
//---------------------------------------------------------
// Create chain engine.
if( !CertCreateCertificateChainEngine(
&EngineConfig,
&hChainEngine
))
{
hr = HRESULT_FROM_WIN32( GetLastError() );
goto CleanUp;
}
//-------------------------------------------------------------------
// Build a chain using CertGetCertificateChain
if( !CertGetCertificateChain(
hChainEngine,
pCert, // pointer to the end certificate
NULL, // use the default time
NULL, // search no additional stores
&ChainPara, // use AND logic and enhanced key usage
// as indicated in the ChainPara
// data structure
dwChainFlags,
NULL, // currently reserved
&pChainContext )) // return a pointer to the chain created
{
hr = HRESULT_FROM_WIN32( GetLastError() );
goto CleanUp;
}
//---------------------------------------------------------------
// Verify that the chain complies with policy
if( !CertVerifyCertificateChainPolicy(
CERT_CHAIN_POLICY_BASE, // use the base policy
pChainContext, // pointer to the chain
&ChainPolicy,
&PolicyStatus )) // return a pointer to the policy status
{
hr = HRESULT_FROM_WIN32( GetLastError() );
goto CleanUp;
}
if( PolicyStatus.dwError != S_OK )
{
hr = PolicyStatus.dwError;
// Instruction: If the PolicyStatus.dwError is CRYPT_E_NO_REVOCATION_CHECK or CRYPT_E_REVOCATION_OFFLINE, it indicates errors in obtaining
// revocation information. These can be ignored since the retrieval of revocation information depends on network availability
goto CleanUp;
}
wprintf( L"CertVerifyCertificateChainPolicy succeeded.\n" );
hr = S_OK;
//
// END
//
goto CleanUp;
//
// Invalid Command Line
//
InvalidCommandLine:
if( i < argc )
{
wprintf( L"Invalid command line '%s'\n", argv[i] );
}
else
Usage(argv[0]);
hr = HRESULT_FROM_WIN32( ERROR_INVALID_PARAMETER );
CleanUp:
if( FAILED(hr) )
{
ReportError( NULL, hr );
}
if( NULL != pChainContext )
{
CertFreeCertificateChain( pChainContext );
}
if( NULL != hChainEngine )
{
CertFreeCertificateChainEngine( hChainEngine );
}
if( NULL != pCert )
{
CertFreeCertificateContext( pCert );
}
if( NULL != hStore )
{
CertCloseStore( hStore, 0 );
}
return (DWORD)hr;
} // end main