mirror of
https://github.com/MichaelGrafnetter/DSInternals
synced 2024-12-13 09:57:29 +00:00
643 lines
24 KiB
C++
643 lines
24 KiB
C++
#include "stdafx.h"
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#include "DrsConnection.h"
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#include "RpcTypeConverter.h"
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using namespace DSInternals::Common;
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using namespace DSInternals::Common::Exceptions;
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using namespace DSInternals::Common::Interop;
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using namespace DSInternals::Replication::Model;
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using namespace System;
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using namespace System::ComponentModel;
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using namespace System::Reflection;
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using namespace System::Security::Principal;
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using namespace System::Runtime::InteropServices;
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using namespace Microsoft::Win32::SafeHandles;
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using namespace msclr::interop;
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namespace DSInternals
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{
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namespace Replication
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{
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namespace Interop
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{
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DrsConnection::DrsConnection(IntPtr rpcHandle, Guid clientDsa)
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: SafeHandleZeroOrMinusOneIsInvalid(true)
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{
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this->_clientDsa = clientDsa;
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this->_serverReplEpoch = DrsConnection::defaultReplEpoch;
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// Register the RetrieveSessionKey as RCP security callback. Mind the delegate lifecycle.
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this->_securityCallback = gcnew SecurityCallback(this, &DrsConnection::RetrieveSessionKey);
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RPC_STATUS status = RpcBindingSetOption(rpcHandle.ToPointer(), RPC_C_OPT_SECURITY_CALLBACK, (ULONG_PTR)Marshal::GetFunctionPointerForDelegate(this->_securityCallback).ToPointer());
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this->Bind(rpcHandle);
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if (this->_serverReplEpoch != DrsConnection::defaultReplEpoch)
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{
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// The domain must have been renamed, so we need to rebind with the proper dwReplEpoch.
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this->ReleaseHandle();
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this->Bind(rpcHandle);
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}
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}
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DrsConnection::DrsConnection(IntPtr preexistingDrssHandle, bool ownsHandle)
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: SafeHandleZeroOrMinusOneIsInvalid(ownsHandle)
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{
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this->SetHandle(preexistingDrssHandle);
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}
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DrsConnection::DrsConnection()
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: SafeHandleZeroOrMinusOneIsInvalid(true)
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{
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}
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void DrsConnection::Bind(IntPtr rpcHandle)
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{
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// Init binding parameters
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UUID clientDsaUuid = RpcTypeConverter::ToUUID(this->_clientDsa);
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auto clientInfo = this->CreateClientInfo();
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DRS_EXTENSIONS *genericServerInfo = nullptr;
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DRS_HANDLE drsHandle = nullptr;
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// Bind
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ULONG result = IDL_DRSBind_NoSEH(rpcHandle.ToPointer(), &clientDsaUuid, (DRS_EXTENSIONS*)clientInfo.get(), &genericServerInfo, &drsHandle);
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Validator::AssertSuccess((Win32ErrorCode)result);
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// Prevent memory leak by storing the genericServerInfo in midl_ptr
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auto genericServerInfoSafePtr = midl_ptr<DRS_EXTENSIONS>(genericServerInfo);
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// Store the DRS handle
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this->SetHandle((IntPtr)drsHandle);
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// Parse the server info
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DRS_EXTENSIONS_INT serverInfo = DRS_EXTENSIONS_INT(genericServerInfo);
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this->_serverSiteObjectGuid = RpcTypeConverter::ToGuid(serverInfo.siteObjGuid);
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this->_serverReplEpoch = serverInfo.dwReplEpoch;
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this->_serverCapabilities = serverInfo.dwFlags;
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}
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array<byte>^ DrsConnection::SessionKey::get()
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{
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return this->_sessionKey;
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}
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Guid DrsConnection::ServerSiteGuid::get()
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{
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return this->_serverSiteObjectGuid;
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}
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midl_ptr<DRS_EXTENSIONS_INT> DrsConnection::CreateClientInfo()
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{
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auto clientInfo = make_midl_ptr<DRS_EXTENSIONS_INT>();
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clientInfo->dwFlags = DRS_EXT::ALL_EXT;
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clientInfo->dwFlagsExt = DRS_EXT2::DRS_EXT_LH_BETA2 | DRS_EXT2::DRS_EXT_RECYCLE_BIN | DRS_EXT2::DRS_EXT_PAM;
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clientInfo->dwExtCaps = DRS_EXT2::DRS_EXT_LH_BETA2 | DRS_EXT2::DRS_EXT_RECYCLE_BIN | DRS_EXT2::DRS_EXT_PAM;
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clientInfo->dwReplEpoch = this->_serverReplEpoch;
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return clientInfo;
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}
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/// <summary>
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/// Gets the replication cursor information for the specified partition.
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/// </summary>
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/// <param name="namingContext">The distinguished name of the partition for which to retrieve the replication cursor information.</param>
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array<ReplicationCursor^>^ DrsConnection::GetReplicationCursors(String^ namingContext)
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{
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// Validate connection
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// TODO: Extract connection validation as a proteted method
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if (this->IsInvalid)
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{
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// TODO: Exception type
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throw gcnew Exception("Not connected");
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}
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Validator::AssertNotNullOrWhiteSpace(namingContext, "namingContext");
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// Prepare the parameters
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DRS_HANDLE handle = this->handle.ToPointer();
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const DWORD inVersion = 1;
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DWORD outVersion = 0;
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auto request = CreateReplicationCursorsRequest(namingContext);
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DRS_MSG_GETREPLINFO_REPLY reply = { nullptr };
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// Retrieve info from DC
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auto result = IDL_DRSGetReplInfo_NoSEH(handle, inVersion, (DRS_MSG_GETREPLINFO_REQ*)request.get(), &outVersion, &reply);
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// Validate the return code
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Validator::AssertSuccess((Win32ErrorCode)result);
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// TODO: Check the returned outVersion.
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// Prevent memory leak by storing the cursors in midl_ptr
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auto cursors = midl_ptr<DS_REPL_CURSORS>(reply.pCursors);
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// Process the results
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auto managedCursors = RpcTypeConverter::ToReplicationCursors(move(cursors));
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return managedCursors;
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}
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midl_ptr<DRS_MSG_GETCHGREQ_V10> DrsConnection::CreateGenericReplicateRequest(midl_ptr<DSNAME> &&dsName, array<ATTRTYP>^ partialAttributeSet, ULONG maxBytes, ULONG maxObjects)
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{
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// TODO: Add support for Windows Server 2003
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auto request = make_midl_ptr<DRS_MSG_GETCHGREQ_V10>();
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// Inset client ID:
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request->uuidDsaObjDest = RpcTypeConverter::ToUUID(this->_clientDsa);
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// Insert DSNAME
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request->pNC = dsName.release(); // Note: Request deleter will also delete DSNAME.
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// Insert PAS:
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auto nativePas = CreateNativePas(partialAttributeSet);
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request->pPartialAttrSetEx = nativePas.release(); // Note: Request deleter will also delete PAS.
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// Insert response size limits:
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request->cMaxBytes = maxBytes;
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request->cMaxObjects = maxObjects;
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// Set correct flags:
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// TODO: + DRS_OPTIONS::PER_SYNC ?
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request->ulFlags = DRS_OPTIONS::DRS_INIT_SYNC |
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DRS_OPTIONS::DRS_WRIT_REP |
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DRS_OPTIONS::DRS_NEVER_SYNCED;
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return request;
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}
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midl_ptr<DRS_MSG_GETREPLINFO_REQ_V1> DrsConnection::CreateReplicationCursorsRequest(String^ namingContext)
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{
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auto request = make_midl_ptr<DRS_MSG_GETREPLINFO_REQ_V1>();
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request->InfoType = DS_REPL_INFO_TYPE::DS_REPL_INFO_CURSORS_FOR_NC;
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request->pszObjectDN = RpcTypeConverter::ToNativeString(namingContext).release();
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return request;
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}
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midl_ptr<DRS_MSG_GETCHGREQ_V10> DrsConnection::CreateReplicateAllRequest(ReplicationCookie^ cookie, array<ATTRTYP>^ partialAttributeSet, ULONG maxBytes, ULONG maxObjects)
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{
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auto ncToReplicate = RpcTypeConverter::ToDsName(cookie->NamingContext);
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auto request = CreateGenericReplicateRequest(move(ncToReplicate), partialAttributeSet, maxBytes, maxObjects);
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// Insert replication state from cookie:
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request->usnvecFrom.usnHighObjUpdate = cookie->HighObjUpdate;
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request->usnvecFrom.usnHighPropUpdate = cookie->HighPropUpdate;
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request->usnvecFrom.usnReserved = cookie->Reserved;
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request->uuidInvocIdSrc = RpcTypeConverter::ToUUID(cookie->InvocationId);
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request->ulFlags |= DRS_OPTIONS::DRS_GET_NC_SIZE;
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return request;
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}
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midl_ptr<DRS_MSG_GETCHGREQ_V10> DrsConnection::CreateReplicateSingleRequest(Guid objectGuid, array<ATTRTYP>^ partialAttributeSet)
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{
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auto objectToReplicate = RpcTypeConverter::ToDsName(objectGuid);
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auto request = CreateGenericReplicateRequest(move(objectToReplicate), partialAttributeSet, defaultMaxBytes, defaultMaxObjects);
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request->ulExtendedOp = EXOP_REQ::EXOP_REPL_OBJ;
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// Guid of an existing DC must be set for the replication to work
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request->uuidDsaObjDest = RpcTypeConverter::ToUUID(this->_serverSiteObjectGuid);
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return request;
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}
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midl_ptr<DRS_MSG_GETCHGREQ_V10> DrsConnection::CreateReplicateSingleRequest(String^ distinguishedName, array<ATTRTYP>^ partialAttributeSet)
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{
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auto objectToReplicate = RpcTypeConverter::ToDsName(distinguishedName);
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auto request = CreateGenericReplicateRequest(move(objectToReplicate), partialAttributeSet, defaultMaxBytes, defaultMaxObjects);
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request->ulExtendedOp = EXOP_REQ::EXOP_REPL_OBJ;
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// Guid of an existing object must be set for the replication to work
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request->uuidDsaObjDest = RpcTypeConverter::ToUUID(this->_serverSiteObjectGuid);
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return request;
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}
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ReplicationResult^ DrsConnection::ReplicateAllObjects(ReplicationCookie^ cookie)
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{
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return this->ReplicateAllObjects(cookie, nullptr, DrsConnection::defaultMaxBytes, DrsConnection::defaultMaxObjects);
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}
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ReplicationResult^ DrsConnection::ReplicateAllObjects(ReplicationCookie^ cookie, ULONG maxBytes, ULONG maxObjects)
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{
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return this->ReplicateAllObjects(cookie, nullptr, maxBytes, maxObjects);
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}
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ReplicationResult^ DrsConnection::ReplicateAllObjects(ReplicationCookie^ cookie, array<ATTRTYP>^ partialAttributeSet, ULONG maxBytes, ULONG maxObjects)
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{
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// Validate parameters
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Validator::AssertNotNull(cookie, "cookie");
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auto request = CreateReplicateAllRequest(cookie, partialAttributeSet, maxBytes, maxObjects);
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auto reply = GetNCChanges(move(request));
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auto objects = ReadObjects(reply->pObjects, reply->cNumObjects, reply->rgValues, reply->cNumValues);
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USN_VECTOR usnTo = reply->usnvecTo;
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Guid invocationId = RpcTypeConverter::ToGuid(reply->uuidInvocIdSrc);
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auto newCookie = gcnew ReplicationCookie(cookie->NamingContext, invocationId, usnTo.usnHighObjUpdate, usnTo.usnHighPropUpdate, usnTo.usnReserved);
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bool hasMoreData = reply->fMoreData != 0;
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return gcnew ReplicationResult(objects, hasMoreData, newCookie, reply->cNumNcSizeObjects);
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}
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ReplicaObject^ DrsConnection::ReplicateSingleObject(String^ distinguishedName)
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{
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return this->ReplicateSingleObject(distinguishedName, nullptr);
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}
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ReplicaObject^ DrsConnection::ReplicateSingleObject(String^ distinguishedName, array<ATTRTYP>^ partialAttributeSet)
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{
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try
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{
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auto request = CreateReplicateSingleRequest(distinguishedName, partialAttributeSet);
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auto reply = GetNCChanges(move(request));
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auto objects = ReadObjects(reply->pObjects, reply->cNumObjects, reply->rgValues, reply->cNumValues);
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// TODO: Assert objects.Count == 1; It is guaranteed that it is > 0
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return objects[0];
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}
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catch (DirectoryObjectNotFoundException^)
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{
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// ReplicateSingleObject also exits with this error when access is denied, so we need to differentiate between these situations.
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bool objectExists = this->TestObjectExistence(distinguishedName);
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if (objectExists)
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{
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// Force the validator to throw the DRA access denied exception.
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Validator::AssertSuccess(Win32ErrorCode::DS_DRA_ACCESS_DENIED);
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}
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// Rethrow the original exception otherwise, as the object really does not exists.
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throw;
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}
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}
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ReplicaObject^ DrsConnection::ReplicateSingleObject(Guid objectGuid)
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{
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return this->ReplicateSingleObject(objectGuid, nullptr);
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}
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ReplicaObject^ DrsConnection::ReplicateSingleObject(Guid objectGuid, array<ATTRTYP>^ partialAttributeSet)
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{
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try
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{
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auto request = CreateReplicateSingleRequest(objectGuid, partialAttributeSet);
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auto reply = GetNCChanges(move(request));
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auto objects = ReadObjects(reply->pObjects, reply->cNumObjects, reply->rgValues, reply->cNumValues);
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// TODO: Assert objects.Count == 1; It is guaranteed that it is > 0
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return objects[0];
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}
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catch (DirectoryObjectNotFoundException^)
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{
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// ReplicateSingleObject also exits with this error when access is denied, so we need to differentiate between these situations.
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bool objectExists = this->TestObjectExistence(objectGuid);
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if (objectExists)
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{
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// Force the validator to throw the DRA access denied exception.
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Validator::AssertSuccess(Win32ErrorCode::DS_DRA_ACCESS_DENIED);
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}
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// Rethrow the original exception otherwise, as the object really does not exists.
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throw;
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}
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}
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midl_ptr<DRS_MSG_GETCHGREPLY_V9> DrsConnection::GetNCChanges(midl_ptr<DRS_MSG_GETCHGREQ_V10> &&request)
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{
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// Validate connection
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if (this->IsInvalid)
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{
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// TODO: Exception type
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throw gcnew Exception("Not connected");
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}
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DRS_HANDLE handle = this->handle.ToPointer();
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const DWORD inVersion = this->MaxSupportedReplicationRequestVersion;
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DWORD outVersion = 0;
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auto reply = make_midl_ptr<DRS_MSG_GETCHGREPLY_V9>();
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// Send message:
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auto result = (Win32ErrorCode) IDL_DRSGetNCChanges_NoSEH(handle, inVersion, (DRS_MSG_GETCHGREQ*)request.get(), &outVersion, (DRS_MSG_GETCHGREPLY*)reply.get());
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// Validate result
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Validator::AssertSuccess(result);
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// TODO: Test extended error code:
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DWORD extendedError = reply->dwDRSError;
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// Check the returned structure version
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if (outVersion == 6 && reply->cNumValues > 0)
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{
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// We will now convert the REPLVALINF_V1 array into REPLVALINF_V3 array so that the caller does not have to differentiate between them.
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// This convenience comes at the price of a minor performance loss
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auto valuesV1 = ((DRS_MSG_GETCHGREPLY_V6*)reply.get())->rgValues;
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auto valuesV3 = make_midl_ptr<REPLVALINF_V3>(reply->cNumValues);
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for (DWORD i = 0; i < reply->cNumValues; i++)
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{
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memcpy(&(valuesV3.get()[i]), &valuesV1[i], sizeof(REPLVALINF_V1));
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}
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// Assign the new value and delete the old one. Only shallow free must be done.
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reply->rgValues = valuesV3.release();
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midl_user_free(valuesV1);
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}
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return reply;
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}
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midl_ptr<DRS_MSG_CRACKREPLY_V1> DrsConnection::CrackNames(midl_ptr<DRS_MSG_CRACKREQ_V1> &&request)
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{
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// Validate connection
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if (this->IsInvalid)
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{
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// TODO: Exception type
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throw gcnew Exception("Not connected");
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}
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const DWORD inVersion = 1;
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// TODO: Check the returned version
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DWORD outVersion = 0;
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midl_ptr<DRS_MSG_CRACKREPLY_V1> reply = make_midl_ptr<DRS_MSG_CRACKREPLY_V1>();
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DRS_HANDLE handle = this->handle.ToPointer();
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auto result = IDL_DRSCrackNames_NoSEH(handle, inVersion, (DRS_MSG_CRACKREQ*)request.get(), &outVersion, (DRS_MSG_CRACKREPLY*)reply.get());
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Validator::AssertSuccess((Win32ErrorCode)result);
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return reply;
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}
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String^ DrsConnection::ResolveDistinguishedName(NTAccount^ accountName)
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{
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auto stringAccountName = accountName->Value;
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auto dn = this->TryResolveName(stringAccountName, DS_NAME_FORMAT::DS_NT4_ACCOUNT_NAME, DS_NAME_FORMAT::DS_FQDN_1779_NAME);
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if (dn == nullptr)
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{
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throw gcnew DirectoryObjectNotFoundException(stringAccountName, nullptr);
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}
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return dn;
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}
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String^ DrsConnection::ResolveDistinguishedName(SecurityIdentifier^ objectSid)
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{
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auto stringSid = objectSid->ToString();
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auto dn = this->TryResolveName(stringSid, DS_NAME_FORMAT::DS_SID_OR_SID_HISTORY_NAME, DS_NAME_FORMAT::DS_FQDN_1779_NAME);
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if (dn == nullptr)
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{
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throw gcnew DirectoryObjectNotFoundException(stringSid, nullptr);
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}
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return dn;
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}
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Guid DrsConnection::ResolveGuid(NTAccount^ accountName)
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{
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auto stringAccountName = accountName->Value;
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auto stringGuid = this->TryResolveName(stringAccountName, DS_NAME_FORMAT::DS_NT4_ACCOUNT_NAME, DS_NAME_FORMAT::DS_UNIQUE_ID_NAME);
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if (stringGuid == nullptr)
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{
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throw gcnew DirectoryObjectNotFoundException(stringAccountName, nullptr);
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}
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return Guid::Parse(stringGuid);
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}
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Guid DrsConnection::ResolveGuid(SecurityIdentifier^ objectSid)
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{
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auto stringSid = objectSid->ToString();
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auto stringGuid = this->TryResolveName(stringSid, DS_NAME_FORMAT::DS_SID_OR_SID_HISTORY_NAME, DS_NAME_FORMAT::DS_UNIQUE_ID_NAME);
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if (stringGuid == nullptr)
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{
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throw gcnew DirectoryObjectNotFoundException(stringSid, nullptr);
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}
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return Guid::Parse(stringGuid);
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}
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Guid DrsConnection::ResolveGuid(String^ userPrincipalName)
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{
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auto stringGuid = this->TryResolveName(userPrincipalName, DS_NAME_FORMAT::DS_USER_PRINCIPAL_NAME, DS_NAME_FORMAT::DS_UNIQUE_ID_NAME);
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if (stringGuid == nullptr)
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{
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throw gcnew DirectoryObjectNotFoundException(userPrincipalName, nullptr);
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}
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return Guid::Parse(stringGuid);
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}
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String^ DrsConnection::TryResolveName(String^ name, DS_NAME_FORMAT formatOffered, DS_NAME_FORMAT formatDesired)
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{
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// We only want to resolve 1 name at a time:
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const size_t numItems = 1;
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// Prepare the request
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auto request = make_midl_ptr<DRS_MSG_CRACKREQ_V1>(numItems);
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request->formatOffered = formatOffered;
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request->formatDesired = formatDesired;
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request->rpNames[0] = RpcTypeConverter::ToNativeString(name).release();
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// Perform RPC call
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auto reply = this->CrackNames(move(request));
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// Process the response
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auto item = reply->pResult->rItems[0];
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if (item.status == DS_NAME_ERROR::DS_NAME_NO_ERROR)
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{
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auto name = marshal_as<String^>(item.pName);
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return name;
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}
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else
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{
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// No name translation has been found for some reason.
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return nullptr;
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}
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}
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bool DrsConnection::TestObjectExistence(String^ distinguishedName)
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{
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auto resolvedName = this->TryResolveName(distinguishedName, DS_NAME_FORMAT::DS_FQDN_1779_NAME, DS_NAME_FORMAT::DS_UNIQUE_ID_NAME);
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// Return true if and only if the object exists
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return resolvedName != nullptr;
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}
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bool DrsConnection::TestObjectExistence(Guid objectGuid)
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{
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auto stringGuid = objectGuid.ToString("B");
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auto resolvedName = this->TryResolveName(stringGuid, DS_NAME_FORMAT::DS_UNIQUE_ID_NAME, DS_NAME_FORMAT::DS_FQDN_1779_NAME);
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// Return true if and only if the object exists
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return resolvedName != nullptr;
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}
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bool DrsConnection::ReleaseHandle()
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{
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DRS_HANDLE ptr = this->handle.ToPointer();
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ULONG result = IDL_DRSUnbind_NoSEH(&ptr);
|
|
// Do not validate result, as we do not want any exceptions in ReleaseHandle
|
|
this->handle = (IntPtr)ptr;
|
|
// Return true if the pointer has been nulled by the UnBind operation
|
|
return ptr == nullptr;
|
|
}
|
|
|
|
midl_ptr<PARTIAL_ATTR_VECTOR_V1_EXT> DrsConnection::CreateNativePas(array<ATTRTYP>^ partialAttributeSet)
|
|
{
|
|
// TODO: Move to type RpcTypeConverter?
|
|
if (partialAttributeSet == nullptr)
|
|
{
|
|
return nullptr;
|
|
}
|
|
auto attrCount = partialAttributeSet->Length;
|
|
if (attrCount < 1)
|
|
{
|
|
// Must request at least one attribute
|
|
return nullptr;
|
|
}
|
|
// Initialize native PAS (maybe just attrCount-1 items, but safety first)
|
|
auto nativePas = make_midl_ptr<PARTIAL_ATTR_VECTOR_V1_EXT>(attrCount);
|
|
// Copy array of attribute ids.
|
|
ATTRTYP* nativePasAttIds = (ATTRTYP*)&nativePas->rgPartialAttr;
|
|
for (int i = 0; i < attrCount; i++)
|
|
{
|
|
nativePasAttIds[i] = partialAttributeSet[i];
|
|
}
|
|
return nativePas;
|
|
}
|
|
|
|
array<byte>^ DrsConnection::ReadValue(const ATTRVAL &value)
|
|
{
|
|
// Allocate managed array
|
|
auto managedValue = gcnew array<byte>(value.valLen);
|
|
// Pin it so the GC does not touch it
|
|
pin_ptr<byte> managedValuePin = &managedValue[0];
|
|
// Copy data from native to managed memory
|
|
memcpy(managedValuePin, value.pVal, value.valLen);
|
|
return managedValue;
|
|
}
|
|
|
|
array<array<byte>^>^ DrsConnection::ReadValues(const ATTRVALBLOCK &values)
|
|
{
|
|
auto valCount = values.valCount;
|
|
auto valArray = gcnew array<array<byte>^>(valCount);
|
|
for (ULONG i = 0; i < valCount; i++)
|
|
{
|
|
auto value = values.pAVal[i];
|
|
auto managedValue = ReadValue(value);
|
|
valArray[i] = managedValue;
|
|
}
|
|
return valArray;
|
|
}
|
|
|
|
ReplicaAttribute^ DrsConnection::ReadAttribute(const ATTR &attribute)
|
|
{
|
|
auto values = ReadValues(attribute.AttrVal);
|
|
auto managedAttribute = gcnew ReplicaAttribute(attribute.attrTyp, values);
|
|
return managedAttribute;
|
|
}
|
|
|
|
ReplicaAttribute^ DrsConnection::ReadAttribute(const REPLVALINF_V3 &attribute)
|
|
{
|
|
auto value = ReadValue(attribute.Aval);
|
|
auto managedAttribute = gcnew ReplicaAttribute(attribute.attrTyp, value);
|
|
return managedAttribute;
|
|
}
|
|
|
|
ReplicaAttributeCollection^ DrsConnection::ReadAttributes(const ATTRBLOCK &attributes)
|
|
{
|
|
auto attributeCount = attributes.attrCount;
|
|
auto managedAttributes = gcnew ReplicaAttributeCollection(attributeCount);
|
|
|
|
for (size_t i = 0; i < attributeCount; i++)
|
|
{
|
|
auto attribute = attributes.pAttr[i];
|
|
auto managedAttribute = ReadAttribute(attribute);
|
|
if (managedAttribute->Values->Length > 0)
|
|
{
|
|
managedAttributes->Add(managedAttribute);
|
|
}
|
|
}
|
|
return managedAttributes;
|
|
}
|
|
ReplicaObject^ DrsConnection::ReadObject(const ENTINF &object)
|
|
{
|
|
auto attributes = ReadAttributes(object.AttrBlock);
|
|
auto guid = ReadGuid(object.pName->Guid);
|
|
auto sid = ReadSid(object.pName);
|
|
auto dn = ReadName(object.pName);
|
|
return gcnew ReplicaObject(dn, guid, sid, attributes);
|
|
}
|
|
ReplicaObjectCollection^ DrsConnection::ReadObjects(const REPLENTINFLIST *objects, int objectCount, const REPLVALINF_V3 *linkedValues, int valueCount)
|
|
{
|
|
// Read linked values first
|
|
// TODO: Handle the case when linked attributes of an object are split between reveral responses.
|
|
auto linkedValueCollection = gcnew ReplicatedLinkedValueCollection();
|
|
for (int i = 0; i < valueCount; i++)
|
|
{
|
|
auto linkedValue = linkedValues[i];
|
|
if (linkedValue.fIsPresent)
|
|
{
|
|
auto objectId = ReadGuid(linkedValue.pObject->Guid);
|
|
auto attribute = ReadAttribute(linkedValue);
|
|
linkedValueCollection->Add(objectId, attribute);
|
|
}
|
|
}
|
|
|
|
// Now read the replicated objects
|
|
auto managedObjects = gcnew ReplicaObjectCollection(objectCount);
|
|
auto currentObject = objects;
|
|
while (currentObject != nullptr)
|
|
{
|
|
auto managedObject = ReadObject(currentObject->Entinf);
|
|
managedObject->LoadLinkedValues(linkedValueCollection);
|
|
managedObjects->Add(managedObject);
|
|
currentObject = currentObject->pNextEntInf;
|
|
}
|
|
return managedObjects;
|
|
}
|
|
|
|
Guid DrsConnection::ReadGuid(const GUID &guid)
|
|
{
|
|
// TODO: Move to RpcTypeConverter?
|
|
return *reinterpret_cast<Guid *>(const_cast<GUID *>(&guid));
|
|
}
|
|
|
|
String^ DrsConnection::ReadName(const DSNAME* dsName)
|
|
{
|
|
// TODO: Move to RpcTypeConverter?
|
|
if (dsName == nullptr || dsName->NameLen <= 0)
|
|
{
|
|
return nullptr;
|
|
}
|
|
|
|
wchar_t* nativeName = (wchar_t*)&dsName->StringName;
|
|
return marshal_as<String^>(nativeName);
|
|
}
|
|
|
|
SecurityIdentifier^ DrsConnection::ReadSid(const DSNAME* dsName)
|
|
{
|
|
// TODO: Move to type RpcTypeConverter?
|
|
if (dsName == nullptr || dsName->SidLen <= 0)
|
|
{
|
|
return nullptr;
|
|
}
|
|
|
|
return gcnew SecurityIdentifier(IntPtr((void*)&dsName->Sid));
|
|
}
|
|
|
|
//! This method is called each time a RPC session key is negotiated.
|
|
void DrsConnection::RetrieveSessionKey(void* rpcContext)
|
|
{
|
|
// Retrieve RPC Security Context
|
|
PSecHandle securityContext = nullptr;
|
|
RPC_STATUS rpcStatus = I_RpcBindingInqSecurityContext(rpcContext, (void**)&securityContext);
|
|
if (rpcStatus != RPC_S_OK)
|
|
{
|
|
// We could not acquire the security context, so do not continue with session key retrieval
|
|
return;
|
|
}
|
|
// Retrieve the Session Key information from Security Context
|
|
SecPkgContext_SessionKey nativeKey = {};
|
|
SECURITY_STATUS secStatus = QueryContextAttributes(securityContext, SECPKG_ATTR_SESSION_KEY, &nativeKey);
|
|
// Extract the actual key if the authentication schema uses one
|
|
if (secStatus == SEC_E_OK && nativeKey.SessionKey != nullptr)
|
|
{
|
|
array<byte>^ managedKey = gcnew array<byte>(nativeKey.SessionKeyLength);
|
|
// Pin it so the GC does not touch it
|
|
pin_ptr<byte> pinnedManagedKey = &managedKey[0];
|
|
// Copy data from native to managed memory
|
|
memcpy(pinnedManagedKey, nativeKey.SessionKey, nativeKey.SessionKeyLength);
|
|
// Do not forget to free the unmanaged memory
|
|
secStatus = FreeContextBuffer(nativeKey.SessionKey);
|
|
this->_sessionKey = managedKey;
|
|
}
|
|
}
|
|
|
|
DWORD DrsConnection::MaxSupportedReplicationRequestVersion::get()
|
|
{
|
|
DWORD version = 5;
|
|
|
|
if (this->_serverCapabilities & DRS_EXT::DRS_EXT_GETCHGREQ_V8)
|
|
{
|
|
version = 8;
|
|
}
|
|
|
|
if (this->_serverCapabilities & DRS_EXT::DRS_EXT_GETCHGREQ_V10)
|
|
{
|
|
version = 10;
|
|
}
|
|
|
|
return version;
|
|
}
|
|
}
|
|
}
|
|
} |