集成 Kerberos 身份验证 (Native Client OLE DB Provider)
适用于:SQL Server Azure SQL 数据库 Azure SQL 托管实例 Azure Synapse Analytics Analytics 平台系统(PDW)
此示例演示如何在 SQL Server Native Client 中使用 OLE DB 获取相互 Kerberos 身份验证。 此示例适用于 SQL Server 2008 (10.0.x) 或更高版本。
有关 SPN 和 Kerberos 身份验证的详细信息,请参阅客户端连接中的服务主体名称 (SPN) 支持。
示例
必须指定一个服务器。 在.cpp文件中,将“MyServer”更改为具有 SQL Server 2008(10.0.x)(或更高版本)实例的计算机名称。
此外,还必须指定一个客户提供的 SPN。 在 .cpp 文件 中,将“CPSPN”更改为客户提供的 SPN。
请确保 INCLUDE 环境变量包含包含 sqlncli.h 的目录。 使用 ole32.lib 和 oleaut32.lib 进行编译。
// compile with: ole32.lib oleaut32.lib
#pragma once
#define WIN32_LEAN_AND_MEAN // Exclude rarely-used stuff from Windows headers
#include <stdio.h>
#include <tchar.h>
#include <sqlncli.h>
#define CHECKHR(stmt) \
do { \
hr = (stmt); \
if (FAILED(hr)) { \
printf("CHECK_HR " #stmt " failed at (%hs, %d), hr=0x%08X\r\n", __FILE__, __LINE__, hr); \
goto CleanUp; \
} \
} while(0)
#define CHECKVB(stmt) \
do { \
if ((stmt)!= VARIANT_TRUE) { \
printf("CHECK_VB " #stmt " failed at (%hs, %d)\r\n", __FILE__, __LINE__); \
goto CleanUp; \
} \
} while(0)
#define CHECKBOOL(stmt) \
do { \
if (!(stmt)) { \
printf("CHECK_BOOL " #stmt " failed at (%hs, %d)\r\n", __FILE__, __LINE__); \
goto CleanUp; \
} \
} while(0)
#define CHECKNULL(stmt) \
do { \
if ((stmt) == NULL) { \
printf("CHECK_NULL " #stmt " failed at (%hs, %d)\r\n", __FILE__, __LINE__); \
goto CleanUp; \
} \
} while(0)
#define SAFERELEASE(p) \
do { \
if ((p)!= NULL) { \
p->Release(); \
p = NULL; \
} \
} while(0)
#define SAFE_SYSFREESTRING(p) \
do { \
if ((p)!= NULL) { \
::SysFreeString(p); \
p = NULL; \
} \
} while(0)
int _tmain(int argc, _TCHAR* argv[]) {
HRESULT hr = S_OK;
IDBInitialize* pInitialize = NULL;
IDBProperties* pProperties = NULL;
DBPROPSET PropertySet[1];
DBPROP rgdbprop[1];
LPCWSTR lpwszProviderString = L"Server=MyServer;" // server with SQL Server 2008 (or later)
L"Trusted_Connection=Yes;"
L"ServerSPN=CP_SPN;"; // customer-provided SPN
DBPROPID rgdbPropID[2];
DBPROPIDSET rgdbPropIDSet[1];
ULONG cPropertySets;
DBPROPSET *prgPropertySets;
CHECKHR(CoInitialize(NULL));
CHECKHR(CoCreateInstance(CLSID_SQLNCLI11, NULL, CLSCTX_INPROC_SERVER, __uuidof(IDBProperties), reinterpret_cast<void **>(&pProperties)));
// set provider string
rgdbprop[0].dwPropertyID = DBPROP_INIT_PROVIDERSTRING;
rgdbprop[0].dwOptions = DBPROPOPTIONS_REQUIRED;
rgdbprop[0].colid = DB_NULLID;
VariantInit(&(rgdbprop[0].vValue));
V_VT(&(rgdbprop[0].vValue)) = VT_BSTR;
V_BSTR(&(rgdbprop[0].vValue)) = SysAllocString(lpwszProviderString);
// set the property to the property set
PropertySet[0].rgProperties = &rgdbprop[0];
PropertySet[0].cProperties = 1;
PropertySet[0].guidPropertySet = DBPROPSET_DBINIT;
// set properties and connect to server
CHECKHR(pProperties->SetProperties(1, PropertySet));
CHECKHR(pProperties->QueryInterface(__uuidof(pInitialize), (void **)&pInitialize));
CHECKHR(pInitialize->Initialize());
// get properties
rgdbPropID[0] = SSPROP_INTEGRATEDAUTHENTICATIONMETHOD;
rgdbPropID[1] = SSPROP_MUTUALLYAUTHENTICATED;
rgdbPropIDSet[0].rgPropertyIDs = &rgdbPropID[0];
rgdbPropIDSet[0].cPropertyIDs = 2;
rgdbPropIDSet[0].guidPropertySet = DBPROPSET_SQLSERVERDATASOURCEINFO;
CHECKHR(pProperties->GetProperties(1, rgdbPropIDSet, &cPropertySets, &prgPropertySets));
wprintf(L"Authentication method: %s\r\n", (LPWSTR)V_BSTR(&(prgPropertySets[0].rgProperties[0].vValue)));
wprintf(L"Mutually authenticated: %s\r\n", (VT_BOOL == V_VT(&(prgPropertySets[0].rgProperties[1].vValue)))?L"yes":L"no");
CleanUp:
SAFERELEASE(pProperties);
SAFERELEASE(pInitialize);
VariantClear(&(rgdbprop[0].vValue));
CoUninitialize();
}