/*============================================================================
* Allocate the mutex.
*===========================================================================*/
OpcUa_StatusCode OPCUA_DLLCALL OpcUa_P_Mutex_Create(OpcUa_Mutex* phMutex)
{
OpcUa_StatusCode uStatus = OpcUa_Good;
pthread_mutex_t* pPosixMutex = OpcUa_Null;
if(phMutex == OpcUa_Null)
{
return OpcUa_BadInvalidArgument;
}
pPosixMutex = OpcUa_P_Memory_Alloc(sizeof(pthread_mutex_t));
OpcUa_ReturnErrorIfAllocFailed(pPosixMutex);
uStatus = OpcUa_P_Mutex_Initialize((OpcUa_Mutex)pPosixMutex);
if(OpcUa_IsBad(uStatus))
{
OpcUa_P_Mutex_Delete((OpcUa_Mutex*)&pPosixMutex);
}
else
{
*phMutex = (OpcUa_Mutex)pPosixMutex;
}
return uStatus;
}
/*============================================================================
* Create a UDP sender socket
*===========================================================================*/
OpcUa_StatusCode OPCUA_DLLCALL OpcUa_P_SocketUdp_CreateSender( OpcUa_StringA a_LocalIpAddress,
OpcUa_StringA a_RemoteIpAddress,
OpcUa_Int16 a_RemotePort,
OpcUa_Byte a_TimeToLive,
OpcUa_Socket* a_pSocket)
{
OpcUa_InternalUdpSocket* pInternalSocket = OpcUa_Null;
OpcUa_InitializeStatus(OpcUa_Module_Socket, "CreateUdpSender");
OpcUa_ReturnErrorIfArgumentNull(a_pSocket);
*a_pSocket = OpcUa_Null;
OpcUa_GotoErrorIfArgumentNull(a_RemoteIpAddress);
if(a_RemotePort == 0)
{
OpcUa_GotoErrorWithStatus(OpcUa_BadInvalidArgument);
}
pInternalSocket = (OpcUa_InternalUdpSocket*)OpcUa_P_Memory_Alloc(sizeof(OpcUa_InternalUdpSocket));
OpcUa_GotoErrorIfAllocFailed(pInternalSocket);
pInternalSocket->pSocketServiceTable = &OpcUa_UdpSocketServiceTable;
if(strchr(a_RemoteIpAddress, ':'))
{
uStatus = OpcUa_P_RawSocket_CreateUdpV6(&pInternalSocket->rawSocket,
OpcUa_True,
a_LocalIpAddress,
a_RemoteIpAddress,
a_RemotePort,
a_TimeToLive);
OpcUa_GotoErrorIfBad(uStatus);
}
else
{
uStatus = OpcUa_P_RawSocket_CreateUdp(&pInternalSocket->rawSocket,
OpcUa_True,
a_LocalIpAddress,
a_RemoteIpAddress,
a_RemotePort,
a_TimeToLive);
OpcUa_GotoErrorIfBad(uStatus);
}
*a_pSocket = pInternalSocket;
OpcUa_ReturnStatusCode;
OpcUa_BeginErrorHandling;
if(pInternalSocket != OpcUa_Null)
{
OpcUa_P_Memory_Free(pInternalSocket);
}
OpcUa_FinishErrorHandling;
}
/*============================================================================
* Allocate the mutex.
*===========================================================================*/
OpcUa_StatusCode OPCUA_DLLCALL OpcUa_P_Mutex_CreateImp(OpcUa_Mutex* phMutex, char* file, int line)
{
OpcUa_StatusCode uStatus = OpcUa_Good;
CRITICAL_SECTION *pCS;
OpcUa_P_InternalMutex* pInternalMutex = OpcUa_Null;
if(phMutex == OpcUa_Null)
{
printf("Invalid Argument Error in: OpcUa_P_Mutex_Create!\n");
return OpcUa_BadInvalidArgument;
}
pCS = OpcUa_P_Memory_Alloc(sizeof(CRITICAL_SECTION));
if(pCS == NULL)
{
printf("Out of memory Error in: OpcUa_P_Mutex_Create!\n");
return OpcUa_BadOutOfMemory;
}
pInternalMutex = (OpcUa_P_InternalMutex*)OpcUa_P_Memory_Alloc(sizeof(OpcUa_P_InternalMutex));
if(pInternalMutex == NULL)
{
printf("Out of memory Error in: OpcUa_P_Mutex_Create!\n");
return OpcUa_BadOutOfMemory;
}
g_nMutexId++;
pInternalMutex->pSystemMutex = pCS;
pInternalMutex->nLockCount = 0;
pInternalMutex->uThreadId = 0;
pInternalMutex->nMutexId = g_nMutexId;
InitializeCriticalSection(pCS);
*phMutex = (OpcUa_Mutex)pInternalMutex;
/* printf("Created Mutex%d, File: %s, Line: %d\n", pInternalMutex->nMutexId, file, line); */
return uStatus;
}
/*============================================================================
* Allocate the mutex.
*===========================================================================*/
OpcUa_StatusCode OPCUA_DLLCALL OpcUa_P_Mutex_CreateImp(OpcUa_Mutex* a_phMutex)
{
OpcUa_StatusCode uStatus = OpcUa_Good;
LPCRITICAL_SECTION lpCriticalSection = NULL;
#if OPCUA_MUTEX_USE_SPINCOUNT
BOOL bRet;
LONG hr;
#endif
if(a_phMutex == OpcUa_Null)
{
return OpcUa_BadInvalidArgument;
}
if(*a_phMutex != OpcUa_Null)
{
*a_phMutex = OpcUa_Null;
}
lpCriticalSection = OpcUa_P_Memory_Alloc(sizeof(CRITICAL_SECTION));
if(lpCriticalSection == NULL)
{
return OpcUa_BadOutOfMemory;
}
#if OPCUA_MUTEX_USE_SPINCOUNT
bRet = InitializeCriticalSectionAndSpinCount( lpCriticalSection,
0x00000400) ;
if (bRet == 0)
{
hr = GetLastError();
OpcUa_P_Memory_Free(lpCriticalSection);
return OpcUa_Bad;
}
#else
InitializeCriticalSection(lpCriticalSection);
#endif
*a_phMutex = (OpcUa_Mutex)lpCriticalSection;
return uStatus;
}
/*============================================================================
* Create a platform thread
*===========================================================================*/
OpcUa_StatusCode OPCUA_DLLCALL OpcUa_P_Thread_Create(OpcUa_RawThread* pRawThread)
{
OpcUa_StatusCode uStatus = OpcUa_Good;
OpcUa_P_ThreadArg* pThreadArgs = OpcUa_Null;
*pRawThread = OpcUa_Null;
pThreadArgs = (OpcUa_P_ThreadArg*)OpcUa_P_Memory_Alloc(sizeof(OpcUa_P_ThreadArg));
OpcUa_ReturnErrorIfAllocFailed(pThreadArgs);
pThreadArgs->hThread = INVALID_HANDLE_VALUE;
pThreadArgs->pfnInternalThreadMain = OpcUa_Null;
pThreadArgs->ThreadArgs = OpcUa_Null;
*pRawThread = (OpcUa_RawThread)pThreadArgs;
return uStatus;
}
/* internal function */
OpcUa_P_OpenSSL_PSHA256_Ctx* OpcUa_P_OpenSSL_PSHA256_Context_Create(
OpcUa_Byte* a_pSecret,
OpcUa_UInt32 a_secretLen,
OpcUa_Byte* a_pSeed,
OpcUa_Int32 a_seedLen)
{
OpcUa_P_OpenSSL_PSHA256_Ctx* pCtx;
OpcUa_Int size;
if(a_pSecret == OpcUa_Null || a_pSeed == OpcUa_Null)
return OpcUa_Null;
pCtx = OpcUa_Null;
size = sizeof(OpcUa_P_OpenSSL_PSHA256_Ctx) + a_secretLen + a_seedLen;
pCtx = (OpcUa_P_OpenSSL_PSHA256_Ctx*) OpcUa_P_Memory_Alloc(size);
if (pCtx == OpcUa_Null)
return OpcUa_Null;
pCtx->secret_len = a_secretLen;
pCtx->seed_len = a_seedLen;
OpcUa_P_Memory_MemCpy(OpcUa_P_OpenSSL_PSHA256_SECRET(pCtx), a_secretLen, a_pSecret, a_secretLen);
OpcUa_P_Memory_MemCpy(OpcUa_P_OpenSSL_PSHA256_SEED(pCtx), a_seedLen, a_pSeed, a_seedLen);
/* A(0) = seed */
/* A(i) = HMAC_SHA256(secret, A(i-1)) */
/* Calculate A(1) = HMAC_SHA256(secret, seed) */
HMAC(EVP_sha256(), a_pSecret, a_secretLen, a_pSeed, a_seedLen, (unsigned char*)pCtx->A, (unsigned int*)OpcUa_Null);
if(pCtx == OpcUa_Null)
return OpcUa_Null;
return pCtx;
}
/*============================================================================
* OpcUa_P_OpenSSL_RSA_LoadPrivateKeyFromFile
*===========================================================================*/
OpcUa_StatusCode OpcUa_P_OpenSSL_RSA_LoadPrivateKeyFromFile(
OpcUa_StringA a_privateKeyFile,
OpcUa_P_FileFormat a_fileFormat,
OpcUa_StringA a_password, /* optional: just needed encrypted PEM */
OpcUa_ByteString* a_pPrivateKey)
{
BIO* pPrivateKeyFile = OpcUa_Null;
RSA* pRsaPrivateKey = OpcUa_Null;
EVP_PKEY* pEvpKey = OpcUa_Null;
unsigned char* pData;
OpcUa_InitializeStatus(OpcUa_Module_P_OpenSSL, "RSA_LoadPrivateKeyFromFile");
/* check parameters */
OpcUa_ReturnErrorIfArgumentNull(a_privateKeyFile);
OpcUa_ReturnErrorIfArgumentNull(a_pPrivateKey);
if(a_fileFormat == OpcUa_Crypto_Encoding_Invalid)
{
return OpcUa_BadInvalidArgument;
}
OpcUa_ReferenceParameter(a_password);
/* open file */
pPrivateKeyFile = BIO_new_file((const char*)a_privateKeyFile, "rb");
OpcUa_ReturnErrorIfArgumentNull(pPrivateKeyFile);
/* read and convert file */
switch(a_fileFormat)
{
case OpcUa_Crypto_Encoding_PEM:
{
/* read from file */
pEvpKey = PEM_read_bio_PrivateKey( pPrivateKeyFile, /* file */
NULL, /* key struct */
0, /* password callback */
a_password); /* default passphrase or arbitrary handle */
OpcUa_GotoErrorIfNull(pEvpKey, OpcUa_Bad);
break;
}
case OpcUa_Crypto_Encoding_PKCS12:
{
int iResult = 0;
/* read from file. */
PKCS12* pPkcs12 = d2i_PKCS12_bio(pPrivateKeyFile, NULL);
if (pPkcs12 == 0)
{
OpcUa_GotoErrorWithStatus(OpcUa_BadEncodingError);
}
/* parse the certificate. */
iResult = PKCS12_parse(pPkcs12, a_password, &pEvpKey, NULL, NULL);
if (iResult == 0)
{
OpcUa_GotoErrorWithStatus(OpcUa_BadEncodingError);
}
/* free certificate. */
PKCS12_free(pPkcs12);
pPkcs12 = NULL;
break;
}
case OpcUa_Crypto_Encoding_DER:
default:
{
uStatus = OpcUa_BadNotSupported;
OpcUa_GotoError;
}
}
/* convert to intermediary openssl struct */
pRsaPrivateKey = EVP_PKEY_get1_RSA(pEvpKey);
EVP_PKEY_free(pEvpKey);
OpcUa_GotoErrorIfNull(pRsaPrivateKey, OpcUa_Bad);
/* get required length */
a_pPrivateKey->Length = i2d_RSAPrivateKey(pRsaPrivateKey, OpcUa_Null);
OpcUa_GotoErrorIfTrue((a_pPrivateKey->Length <= 0), OpcUa_Bad);
/* allocate target buffer */
a_pPrivateKey->Data = (OpcUa_Byte*)OpcUa_P_Memory_Alloc(a_pPrivateKey->Length);
OpcUa_GotoErrorIfAllocFailed(a_pPrivateKey->Data);
/* do real conversion */
pData = a_pPrivateKey->Data;
a_pPrivateKey->Length = i2d_RSAPrivateKey(pRsaPrivateKey, &pData);
OpcUa_GotoErrorIfTrue((a_pPrivateKey->Length <= 0), OpcUa_Bad);
RSA_free(pRsaPrivateKey);
BIO_free(pPrivateKeyFile);
OpcUa_ReturnStatusCode;
OpcUa_BeginErrorHandling;
if(pEvpKey)
{
EVP_PKEY_free(pEvpKey);
}
if(a_pPrivateKey != OpcUa_Null)
{
if(a_pPrivateKey->Data != OpcUa_Null)
{
OpcUa_P_Memory_Free(a_pPrivateKey->Data);
a_pPrivateKey->Data = OpcUa_Null;
a_pPrivateKey->Length = -1;
}
}
if(pPrivateKeyFile != NULL)
{
BIO_free(pPrivateKeyFile);
}
if(pRsaPrivateKey != NULL)
{
RSA_free(pRsaPrivateKey);
}
OpcUa_FinishErrorHandling;
}
/*============================================================================
* OpcUa_P_ParseUrl
*===========================================================================*/
OpcUa_StatusCode OpcUa_P_ParseUrl( OpcUa_StringA a_psUrl,
OpcUa_StringA* a_psIpAdress,
OpcUa_UInt16* a_puPort)
{
OpcUa_UInt32 uUrlLength = 0;
OpcUa_StringA sHostName = OpcUa_Null;
OpcUa_UInt32 uHostNameLength = 0;
OpcUa_CharA* pcCursor = OpcUa_Null;
OpcUa_Int nIndex1 = 0;
OpcUa_Int nIpStart = 0;
struct hostent* pHostEnt = OpcUa_Null;
OpcUa_InitializeStatus(OpcUa_Module_Utilities, "P_ParseUrl");
OpcUa_ReturnErrorIfArgumentNull(a_psUrl);
OpcUa_ReturnErrorIfArgumentNull(a_psIpAdress);
OpcUa_ReturnErrorIfArgumentNull(a_puPort);
*a_psIpAdress = OpcUa_Null;
uUrlLength = (OpcUa_UInt32)strlen(a_psUrl);
/* check for // (end of protocol header) */
pcCursor = strstr(a_psUrl, "//");
if(pcCursor != OpcUa_Null)
{
/* begin of host address */
pcCursor += 2;
nIndex1 = (OpcUa_Int)(pcCursor - a_psUrl);
}
else
{
uStatus = OpcUa_BadSyntaxError;
OpcUa_ReturnStatusCode;
}
/* skip protocol prefix and store beginning of ip adress */
nIpStart = nIndex1;
/* skip host address */
while( a_psUrl[nIndex1] != ':'
&& a_psUrl[nIndex1] != '/'
&& a_psUrl[nIndex1] != 0
&& nIndex1 < (OpcUa_Int32)uUrlLength)
{
nIndex1++;
}
uHostNameLength = nIndex1 - nIpStart;
sHostName = (OpcUa_StringA)malloc(uHostNameLength + 1);
if(sHostName == NULL)
{
return OpcUa_BadOutOfMemory;
}
memcpy(sHostName, &a_psUrl[nIpStart], uHostNameLength);
sHostName[uHostNameLength] = '\0';
pHostEnt = gethostbyname(sHostName);
free(sHostName);
if(pHostEnt == NULL)
{
/* hostname could not be resolved */
return OpcUa_BadHostUnknown;
}
nIpStart = 0;
*a_psIpAdress = (OpcUa_StringA)OpcUa_P_Memory_Alloc(16);
memset(*a_psIpAdress, 0, 16);
#if OPCUA_USE_SAFE_FUNCTIONS
nIpStart += sprintf_s(&(*a_psIpAdress)[0], 16,"%u", (unsigned char)(*((*pHostEnt).h_addr_list))[0]);
(*a_psIpAdress)[nIpStart++] = '.';
nIpStart += sprintf_s(&(*a_psIpAdress)[nIpStart], 12,"%u", (unsigned char)(*((*pHostEnt).h_addr_list))[1]);
(*a_psIpAdress)[nIpStart++] = '.';
nIpStart += sprintf_s(&(*a_psIpAdress)[nIpStart], 8,"%u", (unsigned char)(*((*pHostEnt).h_addr_list))[2]);
(*a_psIpAdress)[nIpStart++] = '.';
nIpStart += sprintf_s(&(*a_psIpAdress)[nIpStart], 4,"%u", (unsigned char)(*((*pHostEnt).h_addr_list))[3]);
#else /* OPCUA_USE_SAFE_FUNCTIONS */
nIpStart += sprintf(&(*a_psIpAdress)[0], "%u", (unsigned char)(*((*pHostEnt).h_addr_list))[0]);
(*a_psIpAdress)[nIpStart++] = '.';
nIpStart += sprintf(&(*a_psIpAdress)[nIpStart], "%u", (unsigned char)(*((*pHostEnt).h_addr_list))[1]);
(*a_psIpAdress)[nIpStart++] = '.';
nIpStart += sprintf(&(*a_psIpAdress)[nIpStart], "%u", (unsigned char)(*((*pHostEnt).h_addr_list))[2]);
(*a_psIpAdress)[nIpStart++] = '.';
nIpStart += sprintf(&(*a_psIpAdress)[nIpStart], "%u", (unsigned char)(*((*pHostEnt).h_addr_list))[3]);
#endif /* OPCUA_USE_SAFE_FUNCTIONS */
/* scan port */
if(a_psUrl[nIndex1] == ':')
{
OpcUa_Int nIndex2 = 0;
OpcUa_CharA* sPort = OpcUa_Null;
OpcUa_CharA sBuffer[MAX_PORT_LENGTH];
/* skip delimiter */
nIndex1++;
/* store beginning of port */
sPort = &a_psUrl[nIndex1];
/* search for end of port */
while( a_psUrl[nIndex1] != '/'
&& a_psUrl[nIndex1] != 0
&& nIndex2 < 6)
{
nIndex1++;
nIndex2++;
}
/* convert port */
OpcUa_P_Memory_MemCpy(sBuffer, MAX_PORT_LENGTH-1, sPort, nIndex2);
sBuffer[nIndex2] = 0;
*a_puPort = (OpcUa_UInt16)OpcUa_P_CharAToInt(sBuffer);
}
else
{
/* return default port */
if (strncmp(a_psUrl, "http:", 5) != 0)
{
*a_puPort = OPCUA_TCP_DEFAULT_PORT;
}
else
{
*a_puPort = OPCUA_HTTP_DEFAULT_PORT;
}
}
OpcUa_ReturnStatusCode;
OpcUa_BeginErrorHandling;
OpcUa_FinishErrorHandling;
}
/**
@brief Extracts data from a certificate store object.
@param pCertificate [in] The certificate to examine.
@param pIssuer [out, optional] The issuer name of the certificate.
@param pSubject [out, optional] The subject name of the certificate.
@param pSubjectUri [out, optional] The subject's URI of the certificate.
@param pSubjectIP [out, optional] The subject's IP of the certificate.
@param pSubjectDNS [out, optional] The subject's DNS name of the certificate.
@param pCertThumbprint [out, optional] The thumbprint of the certificate.
@param pSubjectHash [out, optional] The hash code of the certificate.
@param pCertRawLength [out, optional] The length of the DER encoded data.
can be smaller than the total length of pCertificate in case of chain certificate or garbage follow.
*/
OpcUa_StatusCode OpcUa_P_OpenSSL_PKI_ExtractCertificateData(
OpcUa_ByteString* a_pCertificate,
OpcUa_ByteString* a_pIssuer,
OpcUa_ByteString* a_pSubject,
OpcUa_ByteString* a_pSubjectUri,
OpcUa_ByteString* a_pSubjectIP,
OpcUa_ByteString* a_pSubjectDNS,
OpcUa_ByteString* a_pCertThumbprint,
OpcUa_UInt32* a_pSubjectHash,
OpcUa_UInt32* a_pCertRawLength)
{
X509* pX509Cert = OpcUa_Null;
char* pName = OpcUa_Null;
GENERAL_NAMES* pNames = OpcUa_Null;
const unsigned char* p;
OpcUa_InitializeStatus(OpcUa_Module_P_OpenSSL, "PKI_ExtractCertificateData");
OpcUa_ReturnErrorIfArgumentNull(a_pCertificate);
if(a_pIssuer != OpcUa_Null)
{
a_pIssuer->Data = OpcUa_Null;
a_pIssuer->Length = 0;
}
if(a_pSubject != OpcUa_Null)
{
a_pSubject->Data = OpcUa_Null;
a_pSubject->Length = 0;
}
if(a_pSubjectUri != OpcUa_Null)
{
a_pSubjectUri->Data = OpcUa_Null;
a_pSubjectUri->Length = 0;
}
if(a_pSubjectIP != OpcUa_Null)
{
a_pSubjectIP->Data = OpcUa_Null;
a_pSubjectIP->Length = 0;
}
if(a_pSubjectDNS != OpcUa_Null)
{
a_pSubjectDNS->Data = OpcUa_Null;
a_pSubjectDNS->Length = 0;
}
if(a_pCertThumbprint != OpcUa_Null)
{
a_pCertThumbprint->Data = OpcUa_Null;
a_pCertThumbprint->Length = 0;
}
if(a_pSubjectHash != OpcUa_Null)
{
*a_pSubjectHash = 0;
}
if(a_pCertRawLength != OpcUa_Null)
{
*a_pCertRawLength = 0;
}
/* convert openssl X509 certificate to DER encoded bytestring certificate */
p = a_pCertificate->Data;
if(!(pX509Cert = d2i_X509((X509**)OpcUa_Null, &p, a_pCertificate->Length)))
{
uStatus = OpcUa_Bad;
OpcUa_GotoErrorIfBad(uStatus);
}
if(a_pIssuer != OpcUa_Null)
{
pName = X509_NAME_oneline(X509_get_issuer_name(pX509Cert), NULL, 0);
OpcUa_GotoErrorIfAllocFailed(pName);
a_pIssuer->Length = strlen(pName)+1;
a_pIssuer->Data = (OpcUa_Byte*)OpcUa_P_Memory_Alloc(a_pIssuer->Length*sizeof(OpcUa_Byte));
OpcUa_GotoErrorIfAllocFailed(a_pIssuer->Data);
uStatus = OpcUa_P_Memory_MemCpy(a_pIssuer->Data, a_pIssuer->Length, pName, a_pIssuer->Length);
OpcUa_GotoErrorIfBad(uStatus);
OPENSSL_free(pName);
pName = OpcUa_Null;
}
if(a_pSubject != OpcUa_Null)
{
pName = X509_NAME_oneline(X509_get_subject_name(pX509Cert), NULL, 0);
OpcUa_GotoErrorIfAllocFailed(pName);
a_pSubject->Length = strlen(pName)+1;
a_pSubject->Data = (OpcUa_Byte*)OpcUa_P_Memory_Alloc(a_pSubject->Length*sizeof(OpcUa_Byte));
OpcUa_GotoErrorIfAllocFailed(a_pSubject->Data);
uStatus = OpcUa_P_Memory_MemCpy(a_pSubject->Data, a_pSubject->Length, pName, a_pSubject->Length);
OpcUa_GotoErrorIfBad(uStatus);
OPENSSL_free(pName);
pName = OpcUa_Null;
}
if(a_pSubjectUri != OpcUa_Null || a_pSubjectIP != OpcUa_Null || a_pSubjectDNS != OpcUa_Null)
{
pNames = X509_get_ext_d2i(pX509Cert, NID_subject_alt_name, OpcUa_Null, OpcUa_Null);
if (pNames != OpcUa_Null)
{
int num;
for (num = 0; num < sk_GENERAL_NAME_num(pNames); num++)
{
GENERAL_NAME *value = sk_GENERAL_NAME_value(pNames, num);
switch (value->type)
{
case GEN_URI:
if (a_pSubjectUri != OpcUa_Null && a_pSubjectUri->Data == OpcUa_Null)
{
a_pSubjectUri->Length = value->d.ia5->length+1;
a_pSubjectUri->Data = (OpcUa_Byte*)OpcUa_P_Memory_Alloc(a_pSubjectUri->Length*sizeof(OpcUa_Byte));
OpcUa_GotoErrorIfAllocFailed(a_pSubjectUri->Data);
uStatus = OpcUa_P_Memory_MemCpy(a_pSubjectUri->Data, a_pSubjectUri->Length, value->d.ia5->data, a_pSubjectUri->Length);
OpcUa_GotoErrorIfBad(uStatus);
}
break;
case GEN_IPADD:
if (a_pSubjectIP != OpcUa_Null && a_pSubjectIP->Data == OpcUa_Null)
{
a_pSubjectIP->Length = value->d.ip->length;
a_pSubjectIP->Data = (OpcUa_Byte*)OpcUa_P_Memory_Alloc(a_pSubjectIP->Length*sizeof(OpcUa_Byte));
OpcUa_GotoErrorIfAllocFailed(a_pSubjectIP->Data);
uStatus = OpcUa_P_Memory_MemCpy(a_pSubjectIP->Data, a_pSubjectIP->Length, value->d.ip->data, a_pSubjectIP->Length);
OpcUa_GotoErrorIfBad(uStatus);
}
break;
case GEN_DNS:
if (a_pSubjectDNS != OpcUa_Null && a_pSubjectDNS->Data == OpcUa_Null)
{
a_pSubjectDNS->Length = value->d.ia5->length+1;
a_pSubjectDNS->Data = (OpcUa_Byte*)OpcUa_P_Memory_Alloc(a_pSubjectDNS->Length*sizeof(OpcUa_Byte));
OpcUa_GotoErrorIfAllocFailed(a_pSubjectDNS->Data);
uStatus = OpcUa_P_Memory_MemCpy(a_pSubjectDNS->Data, a_pSubjectDNS->Length, value->d.ia5->data, a_pSubjectDNS->Length);
OpcUa_GotoErrorIfBad(uStatus);
}
break;
}
}
sk_GENERAL_NAME_pop_free(pNames, GENERAL_NAME_free);
pNames = OpcUa_Null;
}
}
if(a_pCertThumbprint != OpcUa_Null)
{
/* update pX509Cert->sha1_hash */
X509_check_purpose(pX509Cert, -1, 0);
a_pCertThumbprint->Length = sizeof(pX509Cert->sha1_hash);
a_pCertThumbprint->Data = (OpcUa_Byte*)OpcUa_P_Memory_Alloc(a_pCertThumbprint->Length*sizeof(OpcUa_Byte));
OpcUa_GotoErrorIfAllocFailed(a_pCertThumbprint->Data);
uStatus = OpcUa_P_Memory_MemCpy(a_pCertThumbprint->Data, a_pCertThumbprint->Length, pX509Cert->sha1_hash, a_pCertThumbprint->Length);
OpcUa_GotoErrorIfBad(uStatus);
}
if(a_pSubjectHash != OpcUa_Null)
{
*a_pSubjectHash = X509_NAME_hash(X509_get_subject_name(pX509Cert));
}
if(a_pCertRawLength != OpcUa_Null)
{
*a_pCertRawLength = (OpcUa_UInt32)(p - a_pCertificate->Data);
}
X509_free(pX509Cert);
OpcUa_ReturnStatusCode;
OpcUa_BeginErrorHandling;
if(a_pIssuer != OpcUa_Null && a_pIssuer->Data != OpcUa_Null)
{
OpcUa_P_Memory_Free(a_pIssuer->Data);
a_pIssuer->Data = OpcUa_Null;
a_pIssuer->Length = 0;
}
if(a_pSubject != OpcUa_Null && a_pSubject->Data != OpcUa_Null)
{
OpcUa_P_Memory_Free(a_pSubject->Data);
a_pSubject->Data = OpcUa_Null;
a_pSubject->Length = 0;
}
if(a_pSubjectUri != OpcUa_Null && a_pSubjectUri->Data != OpcUa_Null)
{
OpcUa_P_Memory_Free(a_pSubjectUri->Data);
a_pSubjectUri->Data = OpcUa_Null;
a_pSubjectUri->Length = 0;
}
if(a_pSubjectIP != OpcUa_Null && a_pSubjectIP->Data != OpcUa_Null)
{
OpcUa_P_Memory_Free(a_pSubjectIP->Data);
a_pSubjectIP->Data = OpcUa_Null;
a_pSubjectIP->Length = 0;
}
if(a_pSubjectDNS != OpcUa_Null && a_pSubjectDNS->Data != OpcUa_Null)
{
OpcUa_P_Memory_Free(a_pSubjectDNS->Data);
a_pSubjectDNS->Data = OpcUa_Null;
a_pSubjectDNS->Length = 0;
}
if(a_pCertThumbprint != OpcUa_Null && a_pCertThumbprint->Data != OpcUa_Null)
{
OpcUa_P_Memory_Free(a_pCertThumbprint->Data);
a_pCertThumbprint->Data = OpcUa_Null;
a_pCertThumbprint->Length = 0;
}
if (pName != OpcUa_Null)
{
OPENSSL_free(pName);
}
if (pNames != OpcUa_Null)
{
sk_GENERAL_NAME_pop_free(pNames, GENERAL_NAME_free);
}
if(pX509Cert != OpcUa_Null)
{
X509_free(pX509Cert);
}
OpcUa_FinishErrorHandling;
}
/*
ToDo: Create Access to OpenSSL certificate store
=> Only API to In-Memory-Store is available for version 0.9.8x
=> Wait until Directory- and/or File-Store is available
*/
OpcUa_StatusCode OpcUa_P_OpenSSL_PKI_LoadCertificate(
OpcUa_PKIProvider* a_pProvider,
OpcUa_Void* a_pLoadHandle,
OpcUa_Void* a_pCertificateStore,
OpcUa_ByteString* a_pCertificate)
{
OpcUa_Byte* buf = OpcUa_Null;
OpcUa_Byte* p = OpcUa_Null;
FILE* pCertificateFile = OpcUa_Null;
X509* pTmpCert = OpcUa_Null;
OpcUa_InitializeStatus(OpcUa_Module_P_OpenSSL, "PKI_LoadCertificate");
OpcUa_ReturnErrorIfArgumentNull(a_pProvider);
OpcUa_ReturnErrorIfArgumentNull(a_pProvider->Handle);
OpcUa_ReturnErrorIfArgumentNull(a_pLoadHandle);
OpcUa_ReturnErrorIfArgumentNull(a_pCertificateStore);
OpcUa_ReturnErrorIfArgumentNull(a_pCertificate);
/* read DER certificates */
pCertificateFile = fopen((const char*)a_pLoadHandle, "r");
/* check for valid file handle */
OpcUa_GotoErrorIfTrue((pCertificateFile == OpcUa_Null), OpcUa_BadInvalidArgument);
if(!(pTmpCert = d2i_X509_fp(pCertificateFile, (X509**)OpcUa_Null)))
{
uStatus = OpcUa_Bad;
OpcUa_GotoErrorIfBad(uStatus);
}
a_pCertificate->Length = i2d_X509(pTmpCert, NULL);
buf = (OpcUa_Byte*)OpcUa_P_Memory_Alloc(a_pCertificate->Length);
OpcUa_GotoErrorIfAllocFailed(buf);
p = buf;
for (;;)
{
i2d_X509(pTmpCert, &p);
X509_free(pTmpCert);
if(!(pTmpCert = d2i_X509_fp(pCertificateFile, (X509**)OpcUa_Null)))
{
break;
}
p = OpcUa_P_Memory_ReAlloc(buf, a_pCertificate->Length + i2d_X509(pTmpCert, NULL));
OpcUa_GotoErrorIfAllocFailed(p);
buf = p;
p = buf + a_pCertificate->Length;
a_pCertificate->Length += i2d_X509(pTmpCert, NULL);
}
if(fclose(pCertificateFile) != 0)
{
pCertificateFile = OpcUa_Null;
uStatus = OpcUa_Bad;
OpcUa_GotoErrorIfBad(uStatus);
}
a_pCertificate->Data = buf;
OpcUa_ReturnStatusCode;
OpcUa_BeginErrorHandling;
if(pCertificateFile != OpcUa_Null)
{
fclose(pCertificateFile);
}
if(pTmpCert != OpcUa_Null)
{
X509_free(pTmpCert);
}
if(buf != OpcUa_Null)
{
OpcUa_P_Memory_Free(buf);
}
OpcUa_FinishErrorHandling;
}
/*============================================================================
* Create a new socket manager or initialize the global one (OpcUa_Null first).
*===========================================================================*/
OpcUa_StatusCode OPCUA_DLLCALL OpcUa_P_SocketManager_Create(OpcUa_SocketManager* a_pSocketManager,
OpcUa_UInt32 a_nSockets,
OpcUa_UInt32 a_nFlags)
{
OpcUa_InternalSocketManager* pInternalSocketManager = OpcUa_Null;
OpcUa_InitializeStatus(OpcUa_Module_Socket, "SocketManager_Create");
if(a_nFlags & 0xFFFFFFF8)
{
return OpcUa_BadInvalidArgument;
}
if(a_nSockets > OPCUA_P_SOCKETMANAGER_NUMBEROFSOCKETS)
{
return OpcUa_BadInvalidArgument;
}
/* set number of socket to maximum */
if(a_nSockets == 0)
{
a_nSockets = OPCUA_P_SOCKETMANAGER_NUMBEROFSOCKETS;
}
a_nSockets += 1; /* add signal socket to requested sockets */
#if !OPCUA_MULTITHREADED
if(a_pSocketManager == OpcUa_Null && OpcUa_Socket_g_SocketManager == OpcUa_Null)
{
a_pSocketManager = &OpcUa_Socket_g_SocketManager;
}
#endif
if(a_pSocketManager == OpcUa_Null)
{
return OpcUa_BadInvalidArgument;
}
*a_pSocketManager = OpcUa_SocketManager_Alloc();
OpcUa_GotoErrorIfAllocFailed(*a_pSocketManager);
pInternalSocketManager = (OpcUa_InternalSocketManager*)*a_pSocketManager;
OpcUa_SocketManager_Initialize(pInternalSocketManager);
#if OPCUA_USE_SYNCHRONISATION
uStatus = OpcUa_P_Mutex_Create(&pInternalSocketManager->pMutex);
OpcUa_GotoErrorIfBad(uStatus);
#endif /* OPCUA_USE_SYNCHRONISATION */
/* preallocate socket structures for all possible sockets (maxsockets) */
uStatus = OpcUa_SocketManager_CreateSockets((OpcUa_SocketManager)pInternalSocketManager, a_nSockets);
OpcUa_GotoErrorIfBad(uStatus);
pInternalSocketManager->uintLastExternalEvent = OPCUA_SOCKET_NO_EVENT;
/* set the behaviour flags */
if((a_nFlags & OPCUA_SOCKET_SPAWN_THREAD_ON_ACCEPT) != OPCUA_SOCKET_NO_FLAG)
{
pInternalSocketManager->Flags.bSpawnThreadOnAccept = OpcUa_True;
}
if((a_nFlags & OPCUA_SOCKET_REJECT_ON_NO_THREAD) != OPCUA_SOCKET_NO_FLAG)
{
pInternalSocketManager->Flags.bRejectOnThreadFail = OpcUa_True;
}
if((a_nFlags & OPCUA_SOCKET_DONT_CLOSE_ON_EXCEPT) != OPCUA_SOCKET_NO_FLAG)
{
pInternalSocketManager->Flags.bDontCloseOnExcept = OpcUa_True;
}
uStatus = OpcUa_P_SocketManager_NewSignalSocket(pInternalSocketManager);
OpcUa_GotoErrorIfBad(uStatus);
#if OPCUA_MULTITHREADED
if (pInternalSocketManager->Flags.bSpawnThreadOnAccept)
{
/* create a semaphore with no free resources for which a host can wait to be signalled. */
uStatus = OpcUa_P_Semaphore_Create(&pInternalSocketManager->pStartupSemaphore, 0, 1);
OpcUa_GotoErrorIfBad(uStatus);
pInternalSocketManager->pSocketManagers = OpcUa_P_Memory_Alloc(sizeof(OpcUa_InternalSocketManager*) * OPCUA_SOCKET_MAXMANAGERS);
OpcUa_GotoErrorIfAllocFailed(pInternalSocketManager->pSocketManagers);
OpcUa_MemSet(pInternalSocketManager->pSocketManagers, 0, sizeof(OpcUa_InternalSocketManager*) * OPCUA_SOCKET_MAXMANAGERS);
}
/* if multithreaded, create and start the server thread if the list is not the global list. */
uStatus = OpcUa_P_Thread_Create(&pInternalSocketManager->pThread); /* make raw thread */
OpcUa_GotoErrorIfBad(uStatus);
uStatus = OpcUa_P_Thread_Start( pInternalSocketManager->pThread,
OpcUa_P_SocketManager_ServerLoopThread,
(OpcUa_Void*)pInternalSocketManager);
OpcUa_GotoErrorIfBad(uStatus);
#endif /* OPCUA_MULTITHREADED */
OpcUa_ReturnStatusCode;
OpcUa_BeginErrorHandling;
if(pInternalSocketManager != OpcUa_Null)
{
#if OPCUA_MULTITHREADED
if(pInternalSocketManager->pThread != OpcUa_Null)
{
OpcUa_P_Thread_Delete(&pInternalSocketManager->pThread);
}
if(pInternalSocketManager->pSocketManagers != OpcUa_Null)
{
OpcUa_P_Memory_Free(pInternalSocketManager->pSocketManagers);
}
if(pInternalSocketManager->pStartupSemaphore != OpcUa_Null)
{
OpcUa_P_Semaphore_Delete(&pInternalSocketManager->pStartupSemaphore);
}
#endif /* OPCUA_MULTITHREADED */
if(pInternalSocketManager->pCookie != (OpcUa_RawSocket)OPCUA_P_SOCKET_INVALID)
{
OpcUa_P_RawSocket_Close(pInternalSocketManager->pCookie);
}
if(pInternalSocketManager->pSockets != OpcUa_Null)
{
if(pInternalSocketManager->pSockets[0].rawSocket != (OpcUa_RawSocket)OPCUA_P_SOCKET_INVALID)
{
OpcUa_P_RawSocket_Close(pInternalSocketManager->pSockets[0].rawSocket);
}
OpcUa_P_Memory_Free(pInternalSocketManager->pSockets);
}
#if OPCUA_USE_SYNCHRONISATION
if(pInternalSocketManager->pMutex != OpcUa_Null)
{
OpcUa_P_Mutex_Delete(&pInternalSocketManager->pMutex);
}
#endif /* OPCUA_USE_SYNCHRONISATION */
OpcUa_P_Memory_Free(pInternalSocketManager);
}
*a_pSocketManager = OpcUa_Null;
OpcUa_FinishErrorHandling;
}
/*============================================================================
* OpcUa_P_OpenSSL_Random_Key_PSHA256_Derive
*===========================================================================*/
OpcUa_StatusCode OpcUa_P_OpenSSL_Random_Key_PSHA256_Derive(
OpcUa_CryptoProvider* a_pProvider,
OpcUa_ByteString a_secret, /* clientnonce | servernonce, servernonce | clientnonce */
OpcUa_ByteString a_seed,
OpcUa_Int32 a_keyLen, /* output len */
OpcUa_Key* a_pKey)
{
OpcUa_P_OpenSSL_PSHA256_Ctx*pCtx = OpcUa_Null;
OpcUa_Byte* pBuffer = OpcUa_Null;
OpcUa_Int bufferlength;
OpcUa_Int i;
OpcUa_Int iterations;
OpcUa_CryptoProviderConfig* pConfig = OpcUa_Null;
OpcUa_Int32 keyLen = 0;
OpcUa_InitializeStatus(OpcUa_Module_P_OpenSSL, "Random_Key_PSHA256_Derive");
OpcUa_ReferenceParameter(a_pProvider);
OpcUa_ReturnErrorIfArgumentNull(a_pProvider);
OpcUa_ReturnErrorIfArgumentNull(a_secret.Data);
OpcUa_ReturnErrorIfArgumentNull(a_seed.Data);
OpcUa_ReturnErrorIfArgumentNull(a_pKey);
keyLen = a_keyLen;
if(keyLen < 0)
{
if(a_pProvider->Handle != OpcUa_Null)
{
/* get default configuration */
pConfig = (OpcUa_CryptoProviderConfig*)a_pProvider->Handle;
keyLen = pConfig->SymmetricKeyLength;
}
else
{
uStatus = OpcUa_BadInvalidArgument;
OpcUa_GotoErrorIfBad(uStatus);
}
}
else if(keyLen > MAX_DERIVED_OUTPUT_LEN)
{
uStatus = OpcUa_BadInvalidArgument;
OpcUa_GotoErrorIfBad(uStatus);
}
if(a_pKey->Key.Data == OpcUa_Null)
{
a_pKey->Key.Length = keyLen;
OpcUa_ReturnStatusCode;
}
a_pKey->Type = OpcUa_Crypto_KeyType_Random;
/** start creating key **/
pCtx = (OpcUa_P_OpenSSL_PSHA256_Ctx*)OpcUa_Null;
iterations = keyLen/32 + (keyLen%32?1:0);
bufferlength = iterations*32;
pBuffer = (OpcUa_Byte *)OpcUa_P_Memory_Alloc(bufferlength * sizeof(OpcUa_Byte));
pCtx = OpcUa_P_OpenSSL_PSHA256_Context_Create(a_secret.Data, a_secret.Length, a_seed.Data, a_seed.Length);
for(i=0; i<iterations; i++)
{
/* SHA256 produces 32 Bytes of output for every iteration */
uStatus = OpcUa_P_OpenSSL_PSHA256_Hash_Generate(pCtx, pBuffer + (i*32));
OpcUa_GotoErrorIfBad(uStatus);
}
OpcUa_P_Memory_MemCpy(a_pKey->Key.Data, a_pKey->Key.Length, pBuffer, keyLen);
if(pCtx != OpcUa_Null)
{
OpcUa_P_Memory_Free(pCtx);
pCtx = OpcUa_Null;
}
if(pBuffer != OpcUa_Null)
{
OpcUa_P_Memory_Free(pBuffer);
pBuffer = OpcUa_Null;
}
OpcUa_ReturnStatusCode;
OpcUa_BeginErrorHandling;
if(pCtx != OpcUa_Null)
{
OpcUa_P_Memory_Free(pCtx);
pCtx = OpcUa_Null;
}
if(pBuffer != OpcUa_Null)
{
OpcUa_P_Memory_Free(pBuffer);
pBuffer = OpcUa_Null;
}
OpcUa_FinishErrorHandling;
}
/*============================================================================
* OpcUa_P_OpenSSL_X509_LoadFromFile
*===========================================================================*/
OpcUa_StatusCode OpcUa_P_OpenSSL_X509_LoadFromFile(
OpcUa_StringA a_fileName,
OpcUa_P_FileFormat a_fileFormat,
OpcUa_StringA a_sPassword, /* optional: just for OpcUa_PKCS12 */
OpcUa_ByteString* a_pCertificate)
{
BIO* pCertFile = OpcUa_Null;
X509* pCertX509 = OpcUa_Null;
PKCS12* pPKCS12Cert = OpcUa_Null;
OpcUa_InitializeStatus(OpcUa_Module_P_OpenSSL, "X509_LoadFromFile");
/* check filename */
if(OpcUa_P_String_strlen(a_fileName) < 1)
{
uStatus = OpcUa_BadInvalidArgument;
OpcUa_GotoErrorIfBad(uStatus);
}
/* import certificate from file by the given encoding type */
pCertFile = BIO_new_file((const char*)a_fileName, "r");
OpcUa_ReturnErrorIfArgumentNull(pCertFile);
switch(a_fileFormat)
{
case OpcUa_Crypto_Encoding_DER:
{
pCertX509 = d2i_X509_bio(pCertFile, /* sourcefile */
(X509**)NULL); /* target (if preallocated) */
break;
}
case OpcUa_Crypto_Encoding_PEM:
{
pCertX509 = PEM_read_bio_X509( pCertFile, /* sourcefile */
(X509**)OpcUa_Null, /* target (if preallocated) */
OpcUa_Null, /* password callback function */
OpcUa_Null); /* passphrase or callback data */
break;
}
case OpcUa_Crypto_Encoding_PKCS12:
{
d2i_PKCS12_bio(pCertFile, &pPKCS12Cert);
PKCS12_parse(pPKCS12Cert, a_sPassword, OpcUa_Null, &pCertX509, OpcUa_Null);
if(pPKCS12Cert != OpcUa_Null)
{
PKCS12_free(pPKCS12Cert);
/*OPENSSL_free(pPKCS12Cert);*/
}
break;
}
default:
{
BIO_free(pCertFile);
return OpcUa_BadNotSupported;
}
}
BIO_free(pCertFile);
pCertFile = OpcUa_Null;
if(pCertX509 == OpcUa_Null)
{
/* error in OpenSSL - maybe certificate file was corrupt */
return OpcUa_Bad;
}
/* prepare container */
memset(a_pCertificate, 0, sizeof(OpcUa_ByteString));
/* get required length for conversion target buffer */
a_pCertificate->Length = i2d_X509( pCertX509,
NULL);
if(a_pCertificate->Length <= 0)
{
/* conversion to DER not possible */
uStatus = OpcUa_Bad;
}
/* allocate conversion target buffer */
a_pCertificate->Data = (OpcUa_Byte*)OpcUa_P_Memory_Alloc(a_pCertificate->Length);
OpcUa_GotoErrorIfAllocFailed(a_pCertificate->Data);
/* convert into DER */
a_pCertificate->Length = i2d_X509( pCertX509,
&(a_pCertificate->Data));
if(a_pCertificate->Length <= 0)
{
/* conversion to DER not possible */
uStatus = OpcUa_Bad;
}
else
{
/* correct pointer incrementation by i2d_X509() */
a_pCertificate->Data -= a_pCertificate->Length;
}
X509_free(pCertX509);
OpcUa_ReturnStatusCode;
OpcUa_BeginErrorHandling;
if(pCertX509 != OpcUa_Null)
{
X509_free(pCertX509);
}
if(pPKCS12Cert != OpcUa_Null)
{
OPENSSL_free(pPKCS12Cert);
}
if(a_pCertificate->Data != OpcUa_Null)
{
OpcUa_P_Memory_Free(a_pCertificate->Data);
a_pCertificate->Data = OpcUa_Null;
}
if(pCertFile != OpcUa_Null)
{
BIO_free(pCertFile);
}
OpcUa_FinishErrorHandling;
}
/*============================================================================
* OpcUa_P_OpenSSL_X509_SelfSigned_Custom_Create
*===========================================================================*/
OpcUa_StatusCode OpcUa_P_OpenSSL_X509_SelfSigned_Custom_Create(
OpcUa_CryptoProvider* a_pProvider,
OpcUa_Int32 a_serialNumber,
OpcUa_UInt32 a_validToInSec,
OpcUa_Crypto_NameEntry* a_pNameEntries, /* will be used for issuer and subject thus it's selfigned cert */
OpcUa_UInt a_nameEntriesCount, /* will be used for issuer and subject thus it's selfigned cert */
OpcUa_Key a_pSubjectPublicKey, /* EVP_PKEY* - type defines also public key algorithm */
OpcUa_Crypto_Extension* a_pExtensions,
OpcUa_UInt a_extensionsCount,
OpcUa_UInt a_signatureHashAlgorithm, /* EVP_sha1(),... */
OpcUa_Key a_pIssuerPrivateKey, /* EVP_PKEY* - type defines also signature algorithm */
OpcUa_ByteString* a_pCertificate)
{
OpcUa_UInt i;
X509_NAME* pSubj = OpcUa_Null;
X509V3_CTX ctx;
const EVP_MD* pDigest = OpcUa_Null;
X509* pCert = OpcUa_Null;
EVP_PKEY* pSubjectPublicKey = OpcUa_Null;
EVP_PKEY* pIssuerPrivateKey = OpcUa_Null;
OpcUa_InitializeStatus(OpcUa_Module_P_OpenSSL, "X509_SelfSigned_Custom_Create");
OpcUa_ReferenceParameter(a_pProvider);
OpcUa_ReturnErrorIfArgumentNull(a_pNameEntries);
OpcUa_ReturnErrorIfArgumentNull(a_pExtensions);
OpcUa_ReturnErrorIfArgumentNull(a_pIssuerPrivateKey.Key.Data);
OpcUa_ReturnErrorIfArgumentNull(a_pCertificate);
if(a_pSubjectPublicKey.Type != OpcUa_Crypto_KeyType_Rsa_Public)
{
uStatus = OpcUa_BadInvalidArgument;
OpcUa_GotoErrorIfBad(uStatus);
}
if(a_pIssuerPrivateKey.Type != OpcUa_Crypto_KeyType_Rsa_Private)
{
uStatus = OpcUa_BadInvalidArgument;
OpcUa_GotoErrorIfBad(uStatus);
}
pSubjectPublicKey = d2i_PublicKey(EVP_PKEY_RSA,OpcUa_Null,((const unsigned char**)&(a_pSubjectPublicKey.Key.Data)),a_pSubjectPublicKey.Key.Length);
if(pSubjectPublicKey == OpcUa_Null)
{
uStatus = OpcUa_Bad;
OpcUa_GotoErrorIfBad(uStatus);
}
pIssuerPrivateKey = d2i_PrivateKey(EVP_PKEY_RSA,OpcUa_Null,((const unsigned char**)&(a_pIssuerPrivateKey.Key.Data)),a_pIssuerPrivateKey.Key.Length);
if(pIssuerPrivateKey == OpcUa_Null)
{
uStatus = OpcUa_Bad;
OpcUa_GotoErrorIfBad(uStatus);
}
/* create new certificate object */
pCert = X509_new();
if(pCert == OpcUa_Null)
{
uStatus = OpcUa_Bad;
OpcUa_GotoErrorIfBad(uStatus);
}
/* set version of certificate (V3 since internal representation starts versioning from 0) */
if(X509_set_version(pCert, 2L) != 1)
{
uStatus = OpcUa_Bad;
OpcUa_GotoErrorIfBad(uStatus);
}
/* generate a unique number for a serial number if none provided. */
if(a_serialNumber == 0)
{
ASN1_INTEGER* pSerialNumber = X509_get_serialNumber(pCert);
pSerialNumber->type = V_ASN1_INTEGER;
pSerialNumber->data = OPENSSL_realloc(pSerialNumber->data, 16);
pSerialNumber->length = 16;
if(pSerialNumber->data == NULL || OpcUa_P_Guid_Create((OpcUa_Guid*)pSerialNumber->data) == NULL)
{
uStatus = OpcUa_Bad;
OpcUa_GotoErrorIfBad(uStatus);
}
}
/* use the integer passed in - note the API should not be using a 32-bit integer - must fix sometime */
else if(ASN1_INTEGER_set(X509_get_serialNumber(pCert), a_serialNumber) == 0)
{
uStatus = OpcUa_Bad;
OpcUa_GotoErrorIfBad(uStatus);
}
/* add key to the request */
if(X509_set_pubkey(pCert, pSubjectPublicKey) != 1)
{
uStatus = OpcUa_Bad;
OpcUa_GotoErrorIfBad(uStatus);
}
if(pSubjectPublicKey != OpcUa_Null)
{
EVP_PKEY_free(pSubjectPublicKey);
pSubjectPublicKey = OpcUa_Null;
}
/* assign the subject name */
pSubj = X509_NAME_new();
if(!pSubj)
{
uStatus = OpcUa_Bad;
OpcUa_GotoErrorIfBad(uStatus);
}
/* create and add entries to subject name */
for(i=0; i<a_nameEntriesCount; i++)
{
uStatus = OpcUa_P_OpenSSL_X509_Name_AddEntry(&pSubj, a_pNameEntries + i);
OpcUa_GotoErrorIfBad(uStatus);
}
/* set subject name in request */
if(X509_set_subject_name(pCert, pSubj) != 1)
{
uStatus = OpcUa_Bad;
OpcUa_GotoErrorIfBad(uStatus);
}
/* set name of issuer (CA) */
if(X509_set_issuer_name(pCert, pSubj) != 1)
{
uStatus = OpcUa_Bad;
OpcUa_GotoErrorIfBad(uStatus);
}
if(!(X509_gmtime_adj(X509_get_notBefore(pCert), 0)))
{
uStatus = OpcUa_Bad;
OpcUa_GotoErrorIfBad(uStatus);
}
/* set ending time of the certificate */
if(!(X509_gmtime_adj(X509_get_notAfter(pCert), a_validToInSec)))
{
uStatus = OpcUa_Bad;
OpcUa_GotoErrorIfBad(uStatus);
}
/* add x509v3 extensions */
X509V3_set_ctx(&ctx, pCert, pCert, OpcUa_Null, OpcUa_Null, 0);
for(i=0; i<a_extensionsCount; i++)
{
uStatus = OpcUa_P_OpenSSL_X509_AddCustomExtension(&pCert, a_pExtensions+i, &ctx);
OpcUa_GotoErrorIfBad(uStatus);
}
/* sign certificate with the CA private key */
switch(a_signatureHashAlgorithm)
{
case OPCUA_P_SHA_160:
pDigest = EVP_sha1();
break;
case OPCUA_P_SHA_224:
pDigest = EVP_sha224();
break;
case OPCUA_P_SHA_256:
pDigest = EVP_sha256();
break;
case OPCUA_P_SHA_384:
pDigest = EVP_sha384();
break;
case OPCUA_P_SHA_512:
pDigest = EVP_sha512();
break;
default:
uStatus = OpcUa_BadNotSupported;
OpcUa_GotoErrorIfBad(uStatus);
}
if(!(X509_sign(pCert, pIssuerPrivateKey, pDigest)))
{
uStatus = OpcUa_Bad;
OpcUa_GotoErrorIfBad(uStatus);
}
if(X509_verify(pCert, pIssuerPrivateKey) <= 0)
{
uStatus = OpcUa_Bad;
OpcUa_GotoErrorIfBad(uStatus);
}
if(pIssuerPrivateKey != OpcUa_Null)
{
EVP_PKEY_free(pIssuerPrivateKey);
pIssuerPrivateKey = OpcUa_Null;
}
if(pSubj != OpcUa_Null)
{
X509_NAME_free(pSubj);
pSubj = OpcUa_Null;
}
/* prepare container */
memset(a_pCertificate, 0, sizeof(OpcUa_ByteString));
/* get required length for conversion target buffer */
a_pCertificate->Length = i2d_X509(pCert, NULL);
if(a_pCertificate->Length <= 0)
{
/* conversion to DER not possible */
uStatus = OpcUa_Bad;
}
/* allocate conversion target buffer */
a_pCertificate->Data = (OpcUa_Byte*)OpcUa_P_Memory_Alloc(a_pCertificate->Length);
OpcUa_GotoErrorIfAllocFailed(a_pCertificate->Data);
/* convert into DER */
a_pCertificate->Length = i2d_X509(pCert, &(a_pCertificate->Data));
if(a_pCertificate->Length <= 0)
{
/* conversion to DER not possible */
uStatus = OpcUa_Bad;
}
else
{
/* correct pointer incrementation by i2d_X509() */
a_pCertificate->Data -= a_pCertificate->Length;
}
X509_free(pCert);
OpcUa_ReturnStatusCode;
OpcUa_BeginErrorHandling;
X509_free(pCert);
if(pSubjectPublicKey != OpcUa_Null)
{
EVP_PKEY_free(pSubjectPublicKey);
}
if(pIssuerPrivateKey != OpcUa_Null)
{
EVP_PKEY_free(pIssuerPrivateKey);
}
if(pSubj != OpcUa_Null)
{
X509_NAME_free(pSubj);
}
OpcUa_FinishErrorHandling;
}
/*============================================================================
* OpcUa_P_ParseUrl
*===========================================================================*/
OpcUa_StatusCode OpcUa_P_ParseUrl( OpcUa_StringA a_psUrl,
OpcUa_StringA* a_psIpAddress,
OpcUa_UInt16* a_puPort)
{
OpcUa_StringA sHostName = OpcUa_Null;
OpcUa_UInt32 uHostNameLength = 0;
OpcUa_CharA* sPort = OpcUa_Null;
OpcUa_CharA* pcCursor;
OpcUa_Int nIndex1 = 0;
OpcUa_Int nIpStart;
struct addrinfo* pAddrInfo = OpcUa_Null;
OpcUa_InitializeStatus(OpcUa_Module_Utilities, "P_ParseUrl");
OpcUa_ReturnErrorIfArgumentNull(a_psUrl);
OpcUa_ReturnErrorIfArgumentNull(a_psIpAddress);
OpcUa_ReturnErrorIfArgumentNull(a_puPort);
*a_psIpAddress = OpcUa_Null;
/* check for // (end of protocol header) */
pcCursor = strstr(a_psUrl, "//");
if(pcCursor != OpcUa_Null)
{
/* begin of host address */
pcCursor += 2;
nIndex1 = (OpcUa_Int)(pcCursor - a_psUrl);
}
/* skip protocol prefix and store beginning of ip adress */
nIpStart = nIndex1;
/* skip host address (IPv6 address can contain colons!) */
while(a_psUrl[nIndex1] != '/' && a_psUrl[nIndex1] != 0)
{
if(a_psUrl[nIndex1] == ':')
{
sPort = &a_psUrl[nIndex1 + 1];
uHostNameLength = nIndex1 - nIpStart;
}
/* handle "opc.tcp://[::1]:4880/" */
if(a_psUrl[nIndex1] == ']' && sPort != OpcUa_Null && a_psUrl[nIpStart] == '[')
{
nIpStart++;
uHostNameLength = nIndex1 - nIpStart;
sPort = OpcUa_Null;
if(a_psUrl[nIndex1 + 1] == ':')
{
sPort = &a_psUrl[nIndex1 + 2];
}
break;
}
nIndex1++;
}
if(uHostNameLength == 0)
{
uHostNameLength = nIndex1 - nIpStart;
}
/* scan port */
if(sPort != OpcUa_Null)
{
/* convert port */
*a_puPort = (OpcUa_UInt16)OpcUa_P_CharAToInt(sPort);
}
else
{
/* return default port */
*a_puPort = OPCUA_TCP_DEFAULT_PORT;
}
sHostName = (OpcUa_StringA)OpcUa_P_Memory_Alloc(uHostNameLength + 1);
if(sHostName == NULL)
{
OpcUa_GotoErrorWithStatus(OpcUa_BadOutOfMemory);
}
memcpy(sHostName, &a_psUrl[nIpStart], uHostNameLength);
sHostName[uHostNameLength] = '\0';
if(getaddrinfo(sHostName, NULL, NULL, &pAddrInfo))
{
/* hostname could not be resolved */
pAddrInfo = NULL;
OpcUa_GotoErrorWithStatus(OpcUa_BadHostUnknown);
}
if(pAddrInfo->ai_family == AF_INET)
{
struct sockaddr_in* pAddr = (struct sockaddr_in*)pAddrInfo->ai_addr;
OpcUa_P_Memory_Free(sHostName);
sHostName = OpcUa_P_Memory_Alloc(INET_ADDRSTRLEN);
OpcUa_GotoErrorIfAllocFailed(sHostName);
if(inet_ntop(AF_INET, (void*)&pAddr->sin_addr,
sHostName, INET_ADDRSTRLEN) == NULL)
{
OpcUa_GotoErrorWithStatus(OpcUa_BadInternalError);
}
}
else if(pAddrInfo->ai_family == AF_INET6)
{
struct sockaddr_in6* pAddr = (struct sockaddr_in6*)pAddrInfo->ai_addr;
OpcUa_P_Memory_Free(sHostName);
sHostName = OpcUa_P_Memory_Alloc(INET6_ADDRSTRLEN);
OpcUa_GotoErrorIfAllocFailed(sHostName);
if(inet_ntop(AF_INET6, (void*)&pAddr->sin6_addr,
sHostName, INET6_ADDRSTRLEN) == NULL)
{
OpcUa_GotoErrorWithStatus(OpcUa_BadInternalError);
}
if(pAddr->sin6_scope_id)
{
char *pScopeAddress = OpcUa_P_Memory_Alloc(strlen(sHostName) + 12);
OpcUa_GotoErrorIfAllocFailed(pScopeAddress);
sprintf(pScopeAddress, "%s%%%u", sHostName, pAddr->sin6_scope_id);
OpcUa_P_Memory_Free(sHostName);
sHostName = pScopeAddress;
}
}
else
{
OpcUa_GotoErrorWithStatus(OpcUa_BadInternalError);
}
*a_psIpAddress = sHostName;
freeaddrinfo(pAddrInfo);
OpcUa_ReturnStatusCode;
OpcUa_BeginErrorHandling;
if(sHostName != OpcUa_Null)
{
OpcUa_P_Memory_Free(sHostName);
}
if(pAddrInfo != NULL)
{
freeaddrinfo(pAddrInfo);
}
OpcUa_FinishErrorHandling;
}
