able/windows-nt
1
0
Fork 0
Code Issues Pull requests Projects Releases Wiki Activity
windows-nt/Source/XPSP1/NT/ds/security/gina/userenv/rsop/chkacc.cpp
CryptoAlgo Inc b3cac27891 Add source files
2020-09-26 16:20:57 +08:00

3416 lines
99 KiB
C++
Raw Blame History

//******************************************************************************
//
// Microsoft Confidential. Copyright (c) Microsoft Corporation 1999. All rights reserved
//
// File: ChkAcc.cpp
//
// Description: RSOP Security functions
//
// History: 31-Jul-99 leonardm Created
//
//******************************************************************************
#include "uenv.h"
#include <nt.h>
#include <ntrtl.h>
#include <nturtl.h>
#include <Windows.h>
#include <DsGetDC.h>
#include "ChkAcc.h"
#include "smartptr.h"
#include "RsopUtil.h"
#include "RsopDbg.h"
CDebug dbgAccessCheck( L"Software\\Microsoft\\Windows NT\\CurrentVersion\\winlogon",
L"ChkAccDebugLevel",
L"ChkAcc.log",
L"ChkAcc.bak",
TRUE );
#undef dbg
#define dbg dbgAccessCheck
//******************************************************************************
//
// Class: CSid
//
// Description: Objects of this class encapsulate and simplify manipulation of
// SIDs for the purposes of access control checks.
//
// History: 7/30/99 leonardm Created.
//
//******************************************************************************
class CSid
{
private:
bool m_bState; // Flag to indicate whether the object is currently
// associated with a valid SID.
PSID m_pSid; // Pointer to the SID encapsulated by thi class.
CWString m_sUser; // User name
CWString m_sDomain; // Domain where the user account resides.
CWString m_sComputer; // Computer in the domain where the user account exists
CWString m_sSidString; // String representation of the encapsulated SID.
SID_NAME_USE m_eUse; // SID type.
public:
//
// Overloaded constructors
//
CSid() : m_bState(false), m_pSid(NULL), m_eUse(SidTypeUnknown){}
CSid(const PSID pSid, const WCHAR* szComputer = NULL ) :
m_bState(false),
m_pSid(NULL),
m_eUse(SidTypeUnknown)
{
Initialize(pSid, szComputer);
}
CSid(const WCHAR* szUser, const WCHAR* szComputer = NULL ) :
m_bState(false),
m_pSid(NULL),
m_eUse(SidTypeUnknown)
{
Initialize(szUser, szComputer);
}
CSid(const CSid& otherSid) :
m_bState(false),
m_pSid(NULL),
m_eUse(SidTypeUnknown)
{
Initialize(otherSid.User(), otherSid.Computer());
}
~CSid()
{
Reset();
}
//
// Attempts to initialize an object of this class by associating it with
// an existing user represented in the SID pointed to by pSid.
//
bool Initialize(PSID pSid, const WCHAR* szComputer = NULL);
//
// Attempts to initialize an object of this class by associating it with
// an existing user represented by szUser.
//
bool Initialize(const WCHAR* szUser, const WCHAR* szComputer = NULL);
//
// Indicates whether this object is currently associated with a valid user.
//
bool IsValid() const{ return m_bState; }
//
// Overload of assignment operator. Copies one CSid to another.
// After a this call two objects encapsulate the same SID.
// However, each owns its own memory. So the destructor of
// one object can be called without invalidating resources used by the other.
//
CSid& operator = (CSid otherSid);
//
// Overload of assignment operator. Initializes
// the current object with an existing SID.
//
CSid& operator = (PSID pSid);
//
// Returns a pointer to the SID encapsulated by this object.
//
PSID GetSidPtr() const{ return m_pSid; }
//
// Returns the name of the user associated with this object.
//
const WCHAR* User() const{ return m_sUser; }
//
// Returns the name of the computer used to Initialize this object with a user.
//
const WCHAR* Computer() const{ return m_sComputer; }
//
// Returns the name of the domain of which the user is a member.
//
const WCHAR* Domain() const{ return m_sDomain; }
//
// Returns a the SID associated with object in
// a string format suitable for display
//
const WCHAR* SidString() const{ return m_sSidString; }
//
// Returns the type as it was found in the SID associated
// with this object during processing of Initialize.
//
SID_NAME_USE SidType() const{ return m_eUse; }
//
// Breaks the association of this object with an exisitng SID. Releases
// memory allocate during Initialize and set the internal state to Invalid.
// This call is safe even if the object is not initialized.
//
void Reset();
};
//******************************************************************************
//
// Function: CSid::Initialize
//
// Description: Attempts to initialize an object of this class by associating it with
// an existing user represented in the SID pointed to by pSid.
//
// Parameters: - pSid: Pointer to an exisitng SID. The memory pointed to
// by this parameter may be released after a call to
// this function since objects of this class allocate
// and release their own memory for the associated SID.
// - szComputer: Pointer to a string naming the computer where the
// lookup of the account is to take place. If NULL, the
// curent computer is used.
//
// Return: true on success. false otherwise.
//
// History: 7/30/99 leonardm Created.
//
//******************************************************************************
bool CSid::Initialize(const PSID pSid, const WCHAR* szComputer/* = NULL */)
{
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"CSid::Initialize - Entering...");
Reset();
if(!IsValidSid(pSid))
{
dbg.Msg(DEBUG_MESSAGE_WARNING, L"CSid::Initialize - IsValidSid returned false!");
return m_bState;
}
m_pSid = new BYTE[GetLengthSid(pSid)];
if(!m_pSid)
{
dbg.Msg(DEBUG_MESSAGE_WARNING, L"CSid::Initialize - call to new failed!");
return m_bState;
}
BOOL bRes = CopySid(GetLengthSid(pSid), m_pSid, pSid);
if(!bRes)
{
dbg.Msg(DEBUG_MESSAGE_WARNING, L"CSid::Initialize - Call to CopySid returned FALSE!");
Reset();
return m_bState;
}
DWORD cbUser = 0;
DWORD cbDomain = 0;
LookupAccountSid(szComputer, m_pSid, NULL, &cbUser, NULL, &cbDomain, &m_eUse);
if(cbUser && cbDomain)
{
XPtrST<WCHAR>xpszUser = new WCHAR[cbUser];
if(!xpszUser)
{
dbg.Msg(DEBUG_MESSAGE_WARNING, L"CSid::Initialize - call to new failed!");
Reset();
return m_bState;
}
XPtrST<WCHAR>xpszDomain = new WCHAR[cbDomain];
if(!xpszDomain)
{
dbg.Msg(DEBUG_MESSAGE_WARNING, L"CSid::Initialize - call to new failed!");
Reset();
return m_bState;
}
bRes = LookupAccountSid(szComputer, m_pSid, xpszUser, &cbUser, xpszDomain, &cbDomain, &m_eUse);
if(!bRes)
{
dbg.Msg(DEBUG_MESSAGE_WARNING, L"CSid::Initialize - call to LookupAccountSid returned FALSE!");
Reset();
return m_bState;
}
m_sUser = xpszUser;
if(!m_sUser.ValidString())
{
Reset();
return m_bState;
}
m_sDomain = xpszDomain;
if(!m_sDomain.ValidString())
{
Reset();
return m_bState;
}
XPtrLF<WCHAR>szSidString = NULL;
BOOL bRes = ConvertSidToStringSid(m_pSid, &szSidString);
if(!bRes)
{
dbg.Msg(DEBUG_MESSAGE_WARNING, L"CSid::Initialize - call to ConvertSidToStringSid returned false!");
Reset();
return m_bState;
}
m_sSidString = szSidString;
if(!m_sSidString.ValidString())
{
Reset();
return m_bState;
}
m_bState = true;
}
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"CSid::Initialize - Leaving successfully.");
return m_bState;
}
//******************************************************************************
//
// Function: CSid::Initialize
//
// Description: Attempts to initialize an object of this class by associating it with
// an existing user represented by szUser.
//
// Parameters: - szUser: Name of an existing user.
// - szComputer: Pointer to a string naming the computer where the
// lookup of the account is to take place. If NULL, the
// curent computer is used.
//
// Return: true on success. false otherwise.
//
// History: 7/30/99 leonardm Created.
//
//******************************************************************************
bool CSid::Initialize(const WCHAR* szUser, const WCHAR* szComputer/* = NULL */)
{
Reset();
if(!szUser)
{
return m_bState;
}
m_sUser = szUser;
if(!m_sUser.ValidString())
{
Reset();
return m_bState;
}
m_sComputer = szComputer ? szComputer : L"";
if(!m_sComputer.ValidString())
{
Reset();
return m_bState;
}
DWORD cSid = 0;
DWORD cDomain = 0;
LookupAccountName(szComputer, szUser, NULL, &cSid, NULL, &cDomain, &m_eUse);
if(cSid && cDomain)
{
m_pSid = new BYTE[cSid];
if(!m_pSid)
{
Reset();
return m_bState;
}
XPtrST<WCHAR>xpszDomain = new WCHAR[cDomain];
if(!xpszDomain)
{
Reset();
return m_bState;
}
BOOL bRes = LookupAccountName(szComputer, szUser, m_pSid, &cSid, xpszDomain, &cDomain, &m_eUse);
if(!bRes)
{
Reset();
return m_bState;
}
m_sDomain = xpszDomain;
if(!m_sDomain.ValidString())
{
Reset();
return m_bState;
}
XPtrLF<WCHAR>szSidString = NULL;
bRes = ConvertSidToStringSid(m_pSid, &szSidString);
if(!bRes)
{
Reset();
return m_bState;
}
m_sSidString = szSidString;
if(!m_sSidString.ValidString())
{
Reset();
return m_bState;
}
m_bState = true;
}
return m_bState;
}
//******************************************************************************
//
// Function: Reset
//
// Description: Breaks the association of this object with an exisitng SID. Releases
// memory allocate during Initialize and set the internal state to Invalid.
// This call is safe even if the object is not initialized.
//
// Parameters: None.
//
// Return:
//
// History: 7/30/99 leonardm Created.
//
//******************************************************************************
void CSid::Reset()
{
delete[] (BYTE*)m_pSid;
m_pSid = NULL;
m_sUser = m_sDomain = m_sComputer = m_sSidString = L"";
m_eUse = SidTypeUnknown;
m_bState = false;
}
//******************************************************************************
//
// Function: operator =
//
// Description: Overload of assignment operator. Copies one CSid to another.
// After a this call two objects encapsulate the same SID.
// However, each owns its own memory. So the destructor of
// one object can be called without invalidating resources used by the other.
//
// Parameters: - otherSid: The CSid whose value is to be copied.
//
// Return: A reference to the object on which the call is invoked.
//
// History: 7/30/99 leonardm Created.
//
//******************************************************************************
CSid& CSid::operator = (CSid otherSid)
{
if(this == &otherSid)
{
return *this;
}
Reset();
if(!IsValidSid(otherSid.GetSidPtr()))
{
return *this;
}
Initialize(otherSid.User(), otherSid.Computer());
return *this;
}
//******************************************************************************
//
// Function: operator =
//
// Description: Overload of assignment operator. Initializes the current object with
// an existing SID.
//
// Parameters: - otherSid: The CSid whose value is to be copied.
//
// Return: A reference to the object on which the call is invoked.
//
// History: 7/30/99 leonardm Created.
//
//******************************************************************************
CSid& CSid::operator = (PSID pSid)
{
Reset();
if(!IsValidSid(pSid))
{
return *this;
}
Initialize(pSid);
return *this;
}
//******************************************************************************
//
// Structure: CTLink
//
// Description:
//
// History: 8/02/99 leonardm Created.
//
//******************************************************************************
template<typename T> struct CTLink
{
T* m_pData;
CTLink* m_pNext;
CTLink* m_pPrev;
CTLink(T* pData) : m_pData(pData), m_pNext(NULL), m_pPrev(NULL){}
~CTLink()
{
delete m_pData;
}
};
//******************************************************************************
//
// Structure: CRsopToken
//
// Description: This reprents a pseudo-token containing an arbitrary
// combination of SIDs which
// can be used to check access to objects protected with security descriptors.
//
// History: 7/30/99 leonardm Created.
//
//******************************************************************************
struct CRsopToken
{
CTLink<CSid>* m_pSidsHead;
CTLink<CSid>* m_pSidsTail;
//
// Default constructor. Constructs an object with no sids. Access checks
// against an CRsopToken with no SIDs will always fail; even on objects
// with no DACL.
//
CRsopToken() : m_pSidsHead(NULL), m_pSidsTail(NULL) {}
//
// Destructor. Releases the memory pointed
// to by each of the elements of m_pSidsHead.
//
~CRsopToken();
//
// Adds a CSid to this object. The client of this class allocates the memory
// for the CSid and this class releases the memory in the destructor.
//
HRESULT AddSid(CSid* pSid);
};
//******************************************************************************
//
// Function: CRsopToken::~CRsopToken
//
// Description: Destructor. Releases the memory pointed to by each of the elements of
// m_pSidsHead.
//
// Parameters: None.
//
// Return: N/A
//
// History: 7/30/99 leonardm Created.
//
//******************************************************************************
CRsopToken::~CRsopToken()
{
CTLink<CSid>* pLinkIterator = m_pSidsHead;
while(pLinkIterator)
{
CTLink<CSid>* pLinkToDelete = pLinkIterator;
pLinkIterator = pLinkIterator->m_pNext;
delete pLinkToDelete;
}
}
//******************************************************************************
//
// Function: CRsopToken::AddSid
//
// Description: Adds a CSid to this object. The client of this class allocates the
// memory for the CSid and this class releases the memory in the destructor.
//
// Parameters: - pSid: A pointer to a CSid. The memory pointed to by pSid will be released by
// in the destructor.
//
// Return: On success it returns S_OK.
// On failure it returns E_OUTOFMEMORY.
//
// History: 7/30/99 leonardm Created.
//
//******************************************************************************
HRESULT CRsopToken::AddSid(CSid* pSid)
{
//
// first check if the Sid is already in there
//
for(CTLink<CSid>* pTraverseLink = m_pSidsHead; pTraverseLink; pTraverseLink = pTraverseLink->m_pNext)
{
//
// If one of the SIDs in the RsopToken matches
// this Sid, return
//
if (EqualSid(pSid->GetSidPtr(), pTraverseLink->m_pData->GetSidPtr()))
return S_OK;
}
//
// Allocate a new link using the pSid passed in.
//
CTLink<CSid>* pLink = new CTLink<CSid>(pSid);
if(!pLink)
{
return E_OUTOFMEMORY;
}
if(!m_pSidsHead)
{
m_pSidsHead = pLink;
}
else
{
m_pSidsTail->m_pNext = pLink;
}
m_pSidsTail = pLink;
return S_OK;
}
//******************************************************************************
//
// Function: GetUserInfo
//
// Description:
//
// Parameters:
//
// Return: S_OK if successful. An HRESULT error code on failure.
//
// History: 8/7/99 leonardm Created.
//
//******************************************************************************
HRESULT GetUserInfo(const CWString& sUser,
CWString& sUserName,
CWString& sUserDomain,
CWString& sUserDC)
{
if(!sUser.ValidString())
{
return E_FAIL;
}
NET_API_STATUS status;
XPtrST<WCHAR>xpUserName = NULL;
XPtrST<WCHAR>xpUserDomain = NULL;
size_t len = sUser.length();
WCHAR* backslashPos = wcschr(sUser, L'\\');
if(backslashPos)
{
size_t index = backslashPos - sUser;
xpUserDomain = new WCHAR[index + 1];
if(!xpUserDomain )
{
return E_OUTOFMEMORY;
}
wcsncpy(xpUserDomain, sUser, index);
xpUserDomain[index] = L'\0';
xpUserName = new WCHAR[len - index];
if(!xpUserName)
{
return E_OUTOFMEMORY;
}
wcsncpy(xpUserName, backslashPos + 1, len - index - 1);
xpUserName[len - index - 1] = L'\0';
}
sUserName = xpUserName ? CWString(xpUserName) : sUser;
if(!sUserName.ValidString())
{
return E_FAIL;
}
if(xpUserDomain)
{
// Use supplied domain.
sUserDomain = xpUserDomain;
}
else
{
// Use current domain
WKSTA_INFO_100* pWkstaInfo = NULL;
status = NetWkstaGetInfo(NULL,100,(LPBYTE*)&pWkstaInfo);
if(status != NERR_Success)
{
return E_FAIL;
}
sUserDomain = pWkstaInfo->wki100_langroup;
NetApiBufferFree(pWkstaInfo);
}
if(!sUserDomain.ValidString())
{
return E_FAIL;
}
PDOMAIN_CONTROLLER_INFO pDCInfo = 0;
DWORD dwError = DsGetDcName(0,
sUserDomain,
0,
0,
0,
&pDCInfo );
if ( dwError != NO_ERROR )
{
return HRESULT_FROM_WIN32( dwError );
}
sUserDC = pDCInfo->DomainControllerName;
NetApiBufferFree(pDCInfo);
if ( !sUserDC.ValidString() )
{
return E_FAIL;
}
return S_OK;
}
//******************************************************************************
//
// Function: AddSpecialGroup
//
// Description:
//
// Parameters:
//
// Return: S_OK if successful. An HRESULT error code on failure.
//
// History: 8/7/99 leonardm Created.
//
//******************************************************************************
HRESULT AddSpecialGroup(PRSOPTOKEN pRsopToken, PSID pSid)
{
CRsopToken* pToken = static_cast<CRsopToken*>(pRsopToken);
XPtrST<CSid> xpCSid = new CSid(pSid);
if(!xpCSid)
{
return E_OUTOFMEMORY;
}
if(!xpCSid->IsValid())
{
return E_FAIL;
}
HRESULT hr = pToken->AddSid(xpCSid);
if(FAILED(hr))
{
return hr;
}
xpCSid.Acquire();
return S_OK;
}
//******************************************************************************
//
// Function: AddSpecialGroups
//
// Description:
//
// Parameters:
//
// Return: S_OK if successful. An HRESULT error code on failure.
//
// History: 8/7/99 leonardm Created.
//
//******************************************************************************
HRESULT AddSpecialGroups(PRSOPTOKEN pRsopToken )
{
BOOL bRes;
PSID pSid;
HRESULT hr;
//
// Everyone
//
SID_IDENTIFIER_AUTHORITY IdentifierAuthority_World = SECURITY_WORLD_SID_AUTHORITY;
bRes = AllocateAndInitializeSid(&IdentifierAuthority_World, 1,
SECURITY_WORLD_RID,
0, 0, 0, 0, 0, 0, 0,
&pSid);
if(!bRes)
{
DWORD dwLastError = GetLastError();
return E_FAIL;
}
hr = AddSpecialGroup(pRsopToken, pSid);
FreeSid(pSid);
if(FAILED(hr))
{
return hr;
}
//
// Authenticated users
//
SID_IDENTIFIER_AUTHORITY IdentifierAuthority_NT = SECURITY_NT_AUTHORITY;
bRes = AllocateAndInitializeSid(&IdentifierAuthority_NT, 1,
SECURITY_AUTHENTICATED_USER_RID,
0, 0, 0, 0, 0, 0, 0,
&pSid);
if(!bRes)
{
DWORD dwLastError = GetLastError();
return E_FAIL;
}
hr = AddSpecialGroup(pRsopToken, pSid);
FreeSid(pSid);
if(FAILED(hr))
{
return hr;
}
return S_OK;
}
//******************************************************************************
//
// Function: AddGlobalGroups
//
// Description:
//
// Parameters:
//
// Return: S_OK if successful. An HRESULT error code on failure.
//
// History: 8/7/99 leonardm Created.
//
//******************************************************************************
HRESULT AddGlobalGroups(const CWString& sUserName,
const CWString& sUserDC,
PRSOPTOKEN pRsopToken)
{
if(!sUserName.ValidString())
{
return E_FAIL;
}
CRsopToken* pToken = static_cast<CRsopToken*>(pRsopToken);
BYTE* pBuffer = NULL;
DWORD dwEntriesread;
DWORD dwTotalentries;
NET_API_STATUS result = NetUserGetGroups( sUserDC,
sUserName,
0,
&pBuffer,
MAX_PREFERRED_LENGTH,
&dwEntriesread,
&dwTotalentries);
if(result != NERR_Success)
{
return HRESULT_FROM_WIN32(result);
}
HRESULT hr = S_OK;
GROUP_USERS_INFO_0* pGui = (GROUP_USERS_INFO_0*)pBuffer;
XPtrST<CSid> xpCSid;
for(DWORD dwi = 0; dwi < dwEntriesread; dwi++)
{
xpCSid = new CSid((pGui[dwi]).grui0_name);
if(!xpCSid)
{
hr = E_OUTOFMEMORY;
break;
}
if(!xpCSid->IsValid())
{
hr = E_FAIL;
break;
}
hr = pToken->AddSid(xpCSid);
if(FAILED(hr))
{
break;
}
xpCSid.Acquire();
}
NetApiBufferFree(pBuffer);
return hr;
}
//******************************************************************************
//
// Function: AddLocalGroups
//
// Description:
//
// Parameters:
//
// Return: S_OK if successful. An HRESULT error code on failure.
//
//
//******************************************************************************
HRESULT AddLocalGroups(const CWString& sUserName,
const CWString& sUserDC,
PRSOPTOKEN pRsopToken)
{
if(!sUserName.ValidString())
{
return E_FAIL;
}
CRsopToken* pToken = static_cast<CRsopToken*>(pRsopToken);
BYTE* pBuffer = NULL;
DWORD dwEntriesread;
DWORD dwTotalentries;
NET_API_STATUS result = NetUserGetLocalGroups(
sUserDC,
sUserName,
0,
LG_INCLUDE_INDIRECT,
&pBuffer,
MAX_PREFERRED_LENGTH,
&dwEntriesread,
&dwTotalentries);
if(result != NERR_Success)
{
HRESULT_FROM_WIN32(result);
}
HRESULT hr = S_OK;
LPLOCALGROUP_USERS_INFO_0 pLui = (LPLOCALGROUP_USERS_INFO_0)pBuffer;
XPtrST<CSid> xpCSid;
for(DWORD dwi = 0; dwi < dwEntriesread; dwi++)
{
xpCSid = new CSid((pLui[dwi]).lgrui0_name);
if(!xpCSid)
{
hr = E_OUTOFMEMORY;
break;
}
if(!xpCSid->IsValid())
{
hr = E_FAIL;
break;
}
hr = pToken->AddSid(xpCSid);
if(FAILED(hr))
{
break;
}
xpCSid.Acquire();
}
NetApiBufferFree(pBuffer);
return hr;
}
//******************************************************************************
//
// Function: ExpandGroup
//
// Description: Expands a given group by expanding to include all the member subgroups etc..
//
// Parameters: - pRsopToken: Rsop token
// hAuthz: A pointer to the Authz resource manager
// (that we are using to expand the grps)
// pCSid: Sid of the group
//
//
// Return: S_OK if successful. An HRESULT error code on failure.
//
//******************************************************************************
HRESULT ExpandGroup(CRsopToken *pRsopToken, AUTHZ_RESOURCE_MANAGER_HANDLE hAuthz,
CSid *pCSid )
{
AUTHZ_CLIENT_CONTEXT_HANDLE hAuthzContext=0;
LUID luid = {0};
HRESULT hrRet = S_OK;
DWORD dwSize=0;
XPtrLF<TOKEN_GROUPS> xGrps;
XPtrST<CSid> xpCSid;
if (!AuthzInitializeContextFromSid(0,
pCSid->GetSidPtr(),
hAuthz,
NULL,
luid, // we are not using it
NULL,
&hAuthzContext)) {
dbg.Msg(DEBUG_MESSAGE_WARNING, L"RsopCreateToken - AuthzInitializeContextFromSid failed. Error - %d", GetLastError());
hrRet = HRESULT_FROM_WIN32(GetLastError());
goto Exit;
}
//
// Now get the list of expanded sids
// find the size first
//
if (!AuthzGetInformationFromContext(hAuthzContext,
AuthzContextInfoGroupsSids,
NULL,
&dwSize,
0)) {
if (GetLastError() != ERROR_INSUFFICIENT_BUFFER) {
dbg.Msg(DEBUG_MESSAGE_WARNING, L"RsopCreateToken - AuthzGetInformationFromContext failed. Error - %d", GetLastError());
hrRet = HRESULT_FROM_WIN32(GetLastError());
goto Exit;
}
}
xGrps = (PTOKEN_GROUPS)LocalAlloc(LPTR, dwSize);
if (!xGrps) {
dbg.Msg(DEBUG_MESSAGE_WARNING, L"RsopCreateToken - Couldn't allocate memory for the token grps. Error - %d", GetLastError());
hrRet = HRESULT_FROM_WIN32(GetLastError());
goto Exit;
}
if (!AuthzGetInformationFromContext(hAuthzContext,
AuthzContextInfoGroupsSids,
dwSize,
&dwSize,
xGrps)) {
dbg.Msg(DEBUG_MESSAGE_WARNING, L"RsopCreateToken - AuthzGetInformationFromContext(2) failed. Error - %d", GetLastError());
hrRet = HRESULT_FROM_WIN32(GetLastError());
goto Exit;
}
for (DWORD i = 0; i < xGrps->GroupCount; i++) {
xpCSid = new CSid(xGrps->Groups[i].Sid, NULL);
if (!xpCSid) {
dbg.Msg(DEBUG_MESSAGE_WARNING, L"RsopCreateToken - couldn't allocate memory(2). Error - %d", GetLastError());
hrRet = HRESULT_FROM_WIN32(GetLastError());
goto Exit;
}
hrRet = pRsopToken->AddSid(xpCSid);
if(FAILED(hrRet)) {
dbg.Msg(DEBUG_MESSAGE_WARNING, L"RsopCreateToken - AddSid failed. Error - 0x%x", hrRet);
goto Exit;
}
xpCSid.Acquire();
}
hrRet = S_OK;
Exit:
if (hAuthzContext)
AuthzFreeContext(hAuthzContext);
return hrRet;
}
//******************************************************************************
//
// Function: RsopCreateToken
//
// Description: Creates a pseudo-token using an exisitng user or machine account plus
// the accounts of which that user is currently a member of.
// The returned pseudo-token can be used subsequently in call
// to other RSOP security functions to check access to
// objects protected by security descriptors.
//
// Parameters: - szaccountName: Pointer to a user or machine account name.
// - psaUserSecurityGroups: Pointer ta SAFEARRAY of BSTRs representing
// security groups.
// If NULL, then all the current security groups for the
// szaccountName are added to the RsopToken.
// If not NULL but pointing to an empty array,
// only the szaccountName is added to the RsopToken.
// - ppRsopToken: Address of a PRSOPTOKEN that receives the newly
// created pseudo-token
//
//
// Return: S_OK if successful. An HRESULT error code on failure.
//
// History: 8/7/99 leonardm Created.
//
//******************************************************************************
HRESULT RsopCreateToken(WCHAR* szAccountName,
SAFEARRAY* psaUserSecurityGroups,
PRSOPTOKEN* ppRsopToken )
{
dbg.Initialize( L"Software\\Microsoft\\Windows NT\\CurrentVersion\\winlogon",
L"ChkAccDebugLevel",
L"ChkAcc.log",
L"ChkAcc.bak");
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"RsopCreateToken - Entering...");
HRESULT hr = E_FAIL;
//
// Instantiate a new CRsopToken
//
*ppRsopToken = NULL;
XPtrST<CRsopToken>xpRsopToken = new CRsopToken();
if(!xpRsopToken)
{
dbg.Msg(DEBUG_MESSAGE_WARNING, L"RsopCreateToken - Operator new returned NULL. Creation of a CRsopToken failed.");
return E_OUTOFMEMORY;
}
//
// Add to the new CRsopToken a CSid corresponding to the
// principal represented by parameter szAccountName. For
// dummy target the szAccountName will be null.
//
XPtrST<CSid>xpCSid;
if ( szAccountName )
{
xpCSid = new CSid(szAccountName);
if(!xpCSid)
{
dbg.Msg(DEBUG_MESSAGE_WARNING, L"RsopCreateToken - Operator new returned NULL. Creation of a CSid failed.");
return E_OUTOFMEMORY;
}
if(!xpCSid->IsValid())
{
dbg.Msg(DEBUG_MESSAGE_WARNING, L"RsopCreateToken - Call to CSid::IsValid failed.");
return E_FAIL;
}
hr = xpRsopToken->AddSid(xpCSid);
if(FAILED(hr))
{
return hr;
}
xpCSid.Acquire();
}
//
// If the parameter is NULL, that means we are to add the security
// groups to which the user currently belongs.
//
if(!psaUserSecurityGroups)
{
if (szAccountName) {
CWString sUser = szAccountName;
CWString sUserName;
CWString sUserDomain;
CWString sUserDC;
hr = GetUserInfo(sUser, sUserName, sUserDomain, sUserDC);
if(FAILED(hr))
{
return hr;
}
/* for cross domain cases this fails
//
// Get Global group membership
//
hr = AddGlobalGroups(sUserName, sUserDC, xpRsopToken);
if(FAILED(hr))
{
return hr;
}
*/
hr = AddLocalGroups(sUserName, sUserDC, xpRsopToken);
if(FAILED(hr))
{
return hr;
}
//
// Universal groups across domains cannot be retrieved by
// NetUserGetGroups but can be fetched by authz functions.
//
xpCSid = new CSid(szAccountName);
AUTHZ_RESOURCE_MANAGER_HANDLE hAuthz;
if (!AuthzInitializeResourceManager(NULL,
NULL,
NULL,
NULL,
0,
&hAuthz)) {
dbg.Msg(DEBUG_MESSAGE_WARNING, L"RsopCreateToken - AuthzInitializeResourceManager failed. Error - %d", GetLastError());
return HRESULT_FROM_WIN32(GetLastError());
}
HRESULT hr = ExpandGroup(xpRsopToken, hAuthz, xpCSid);
if (FAILED(hr)) {
dbg.Msg(DEBUG_MESSAGE_WARNING, L"RsopCreateToken - ExpandGrp failed for user. Error - 0x%x", hr);
AuthzFreeResourceManager(hAuthz);
return hr;
}
AuthzFreeResourceManager(hAuthz);
// xpCSid will be freed automatically.
}
}
//
// Otherwise, we add only those groups named in the SAFERARRAY.
//
else
{
BSTR* pbstr;
AUTHZ_RESOURCE_MANAGER_HANDLE hAuthz;
if (!AuthzInitializeResourceManager(NULL,
NULL,
NULL,
NULL,
0,
&hAuthz)) {
dbg.Msg(DEBUG_MESSAGE_WARNING, L"RsopCreateToken - AuthzInitializeResourceManager failed. Error - %d", GetLastError());
return HRESULT_FROM_WIN32(GetLastError());
}
// Get a pointer to the elements of the array.
HRESULT hr = SafeArrayAccessData(psaUserSecurityGroups, (void**)&pbstr);
if(FAILED(hr))
{
AuthzFreeResourceManager(hAuthz);
return hr;
}
int count = psaUserSecurityGroups->rgsabound[0].cElements;
for (int i = 0; i < count; i++)
{
xpCSid = new CSid(pbstr[i]);
if(!xpCSid)
{
AuthzFreeResourceManager(hAuthz);
SafeArrayUnaccessData(psaUserSecurityGroups);
return E_OUTOFMEMORY;
}
if(!xpCSid->IsValid())
{
dbg.Msg(DEBUG_MESSAGE_WARNING, L"RsopCreateToken - %s is invalid", pbstr[i]);
AuthzFreeResourceManager(hAuthz);
SafeArrayUnaccessData(psaUserSecurityGroups);
return HRESULT_FROM_WIN32(ERROR_INVALID_ACCOUNT_NAME);
}
HRESULT hr = ExpandGroup(xpRsopToken, hAuthz, xpCSid);
if (FAILED(hr)) {
dbg.Msg(DEBUG_MESSAGE_WARNING, L"RsopCreateToken - ExpandGrp failed. Error - 0x%x", hr);
AuthzFreeResourceManager(hAuthz);
SafeArrayUnaccessData(psaUserSecurityGroups);
return hr;
}
hr = xpRsopToken->AddSid(xpCSid);
if(FAILED(hr))
{
AuthzFreeResourceManager(hAuthz);
SafeArrayUnaccessData(psaUserSecurityGroups);
return hr;
}
xpCSid.Acquire();
}
AuthzFreeResourceManager(hAuthz);
SafeArrayUnaccessData(psaUserSecurityGroups);
}
hr = AddSpecialGroups(xpRsopToken);
if(FAILED(hr))
{
return hr;
}
*ppRsopToken = xpRsopToken;
xpRsopToken.Acquire();
return S_OK;
}
//******************************************************************************
//
// Function: RsopDeleteToken
//
// Description: Destroys a pseudo-token previously created by any of the overloaded
// forms of RSOPCreateRsopToken
//
// Parameters: - pRsopToken: Pointer to a valid PRSOPTOKEN
//
// Return: S_OK on success. An HRESULT error code on failure.
//
// History: 7/30/99 leonardm Created.
//
//******************************************************************************
HRESULT RsopDeleteToken(PRSOPTOKEN pRsopToken)
{
CRsopToken* pToken = static_cast<CRsopToken*>(pRsopToken);
delete pToken;
return S_OK;
}
//******************************************************************************
//
// Function: GetAceSid
//
// Description:
//
// Parameters:
//
// Return:
//
// History: 10/19/99 leonardm Created.
//
//******************************************************************************
PISID GetAceSid(PACE_HEADER pAceHeader)
{
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"GetAceSid - Entering.");
//
// Check for invalid argument
//
if(!pAceHeader)
{
dbg.Msg(DEBUG_MESSAGE_WARNING, L"GetAceSid - Invalid parameter: pAceHeader is NULL");
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"GetAceSid - Leaving.");
return NULL;
}
PISID pSid = NULL;
PACCESS_ALLOWED_ACE pACCESS_ALLOWED_ACE;
PACCESS_ALLOWED_OBJECT_ACE pACCESS_ALLOWED_OBJECT_ACE;
PACCESS_DENIED_ACE pACCESS_DENIED_ACE;
PACCESS_DENIED_OBJECT_ACE pACCESS_DENIED_OBJECT_ACE;
//
// Cast the ACE header to the appropriate ACE type based on the 'Acetype' member of the
// ACE header.
//
switch(pAceHeader->AceType)
{
case ACCESS_ALLOWED_ACE_TYPE:
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"GetAceSid - ACE type: ACCESS_ALLOWED_ACE_TYPE");
pACCESS_ALLOWED_ACE = reinterpret_cast<PACCESS_ALLOWED_ACE>(pAceHeader);
pSid = reinterpret_cast<PISID>(&(pACCESS_ALLOWED_ACE->SidStart));
break;
case ACCESS_ALLOWED_OBJECT_ACE_TYPE:
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"GetAceSid - ACE type: ACCESS_ALLOWED_OBJECT_ACE_TYPE");
pACCESS_ALLOWED_OBJECT_ACE = reinterpret_cast<PACCESS_ALLOWED_OBJECT_ACE>(pAceHeader);
if( (pACCESS_ALLOWED_OBJECT_ACE->Flags & ACE_OBJECT_TYPE_PRESENT) &&
(pACCESS_ALLOWED_OBJECT_ACE->Flags & ACE_INHERITED_OBJECT_TYPE_PRESENT))
{
//
// If both ACE_OBJECT_TYPE_PRESENT and ACE_INHERITED_OBJECT_TYPE_PRESENT are set in
// the ACE flags, the SID starts at the offset specified by 'SidStart'.
//
pSid = reinterpret_cast<PISID>(&(pACCESS_ALLOWED_OBJECT_ACE->SidStart));
}
else if((pACCESS_ALLOWED_OBJECT_ACE->Flags & ACE_OBJECT_TYPE_PRESENT) ||
(pACCESS_ALLOWED_OBJECT_ACE->Flags & ACE_INHERITED_OBJECT_TYPE_PRESENT))
{
//
// If either ACE_OBJECT_TYPE_PRESENT or ACE_INHERITED_OBJECT_TYPE_PRESENT is set in
// the ACE flags, the SID starts at the offset specified by 'InheritedObjectType'.
//
pSid = reinterpret_cast<PISID>(&(pACCESS_ALLOWED_OBJECT_ACE->InheritedObjectType));
}
else
{
//
// If neither ACE_OBJECT_TYPE_PRESENT nor ACE_INHERITED_OBJECT_TYPE_PRESENT is set in
// the ACE flags, the SID starts at the offset specified by 'ObjectType'.
//
pSid = reinterpret_cast<PISID>(&(pACCESS_ALLOWED_OBJECT_ACE->ObjectType));
}
break;
case ACCESS_DENIED_ACE_TYPE:
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"GetAceSid - ACE type: ACCESS_DENIED_ACE_TYPE");
pACCESS_DENIED_ACE = reinterpret_cast<PACCESS_DENIED_ACE>(pAceHeader);
pSid = reinterpret_cast<PISID>(&(pACCESS_DENIED_ACE->SidStart));
break;
case ACCESS_DENIED_OBJECT_ACE_TYPE:
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"GetAceSid - ACE type: ACCESS_DENIED_OBJECT_ACE_TYPE");
pACCESS_DENIED_OBJECT_ACE = reinterpret_cast<PACCESS_DENIED_OBJECT_ACE>(pAceHeader);
if( (pACCESS_DENIED_OBJECT_ACE->Flags & ACE_OBJECT_TYPE_PRESENT) &&
(pACCESS_DENIED_OBJECT_ACE->Flags & ACE_INHERITED_OBJECT_TYPE_PRESENT))
{
//
// If both ACE_OBJECT_TYPE_PRESENT and ACE_INHERITED_OBJECT_TYPE_PRESENT are set in
// the ACE flags, the SID starts at the offset specified by 'SidStart'.
//
pSid = reinterpret_cast<PISID>(&(pACCESS_DENIED_OBJECT_ACE->SidStart));
}
else if((pACCESS_DENIED_OBJECT_ACE->Flags & ACE_OBJECT_TYPE_PRESENT) ||
(pACCESS_DENIED_OBJECT_ACE->Flags & ACE_INHERITED_OBJECT_TYPE_PRESENT))
{
//
// If either ACE_OBJECT_TYPE_PRESENT or ACE_INHERITED_OBJECT_TYPE_PRESENT is set in
// the ACE flags, the SID starts at the offset specified by 'InheritedObjectType'.
//
pSid = reinterpret_cast<PISID>(&(pACCESS_DENIED_OBJECT_ACE->InheritedObjectType));
}
else
{
//
// If neither ACE_OBJECT_TYPE_PRESENT nor ACE_INHERITED_OBJECT_TYPE_PRESENT is set in
// the ACE flags, the SID starts at the offset specified by 'ObjectType'.
//
pSid = reinterpret_cast<PISID>(&(pACCESS_DENIED_OBJECT_ACE->ObjectType));
}
break;
default:
dbg.Msg(DEBUG_MESSAGE_WARNING, L"GetAceSid - Unexpected ACE type found. Type: 0x%08X", pAceHeader->AceType);
break;
}
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"GetAceSid - Leaving.");
return pSid;
}
//******************************************************************************
//
// Function: CheckAceApplies
//
// Description:
//
// Parameters:
//
// Return: S_OK on success. An HRESULT error code on failure.
//
// History: 8/8/99 leonardm Created.
//
//******************************************************************************
HRESULT CheckAceApplies(PACE_HEADER pAceHeader, PRSOPTOKEN pRsopToken, bool* pbAceApplies)
{
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"CheckAceApplies - Entering.");
//
// Get the SID from the ACE associated with this Ace Header.
//
PISID pSid = GetAceSid(pAceHeader);
if(!pSid)
{
dbg.Msg(DEBUG_MESSAGE_WARNING, L"CheckAceApplies - GetAceSid failed.");
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"CheckAceApplies - Leaving.");
return E_FAIL;
}
*pbAceApplies = false;
//
// Compare the SID from the ACE with all the SIDs in the RsopToken.
//
CRsopToken* pToken = static_cast<CRsopToken*>(pRsopToken);
for(CTLink<CSid>* pLink = pToken->m_pSidsHead; pLink; pLink = pLink->m_pNext)
{
//
// If one of the SIDs in the RsopToken matches
// the SID in the ACE, this ACE applies.
//
if(EqualSid(pSid, pLink->m_pData->GetSidPtr()))
{
*pbAceApplies = true;
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"CheckAceApplies - One of the SIDs in the RsopToken matches the SID in the ACE. The ACE applies.");
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"CheckAceApplies - Leaving.");
return S_OK;
}
}
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"CheckAceApplies - None of the SIDs in the RsopToken matches the SID in the ACE. The ACE does not apply.");
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"CheckAceApplies - Leaving.");
return S_OK;
}
//******************************************************************************
const DWORD MAX_PERM_BITS=25;
//******************************************************************************
enum EPermission{ PERMISSION_DENIED, PERMISSION_ALLOWED, PERMISSION_NOT_SET};
//******************************************************************************
//
// Class: CSubObjectPerm
//
// Description:
//
// History: 11/09/99 leonardm Created.
//
//******************************************************************************
class CSubObjectPerm
{
private:
CTLink<GUID>* m_pGuidsHead;
CTLink<GUID>* m_pGuidsTail;
EPermission permissionBits[MAX_PERM_BITS];
public:
CSubObjectPerm();
~CSubObjectPerm();
HRESULT AddGuid(GUID* pGuid);
void ProcessAceMask(DWORD dwMask, EPermission permission, GUID* pGuid);
DWORD GetAccumulatedPermissions();
bool AnyDenied();
};
//******************************************************************************
//
// Function: CSubObjectPerm::CSubObjectPerm
//
// Description:
//
// Parameters:
//
// Return:
//
// History: 11/09/99 leonardm Created.
//
//******************************************************************************
CSubObjectPerm::CSubObjectPerm() : m_pGuidsHead(NULL), m_pGuidsTail(NULL)
{
for (int i = 0; i < MAX_PERM_BITS; i++)
{
permissionBits[i] = PERMISSION_NOT_SET;
}
}
//******************************************************************************
//
// Function: CSubObjectPerm::~CSubObjectPerm
//
// Description:
//
// Parameters:
//
// Return:
//
// History: 11/09/99 leonardm Created.
//
//******************************************************************************
CSubObjectPerm::~CSubObjectPerm()
{
CTLink<GUID>* pLinkIterator = m_pGuidsHead;
while(pLinkIterator)
{
CTLink<GUID>* pLinkToDelete = pLinkIterator;
pLinkIterator = pLinkIterator->m_pNext;
delete pLinkToDelete;
}
}
//******************************************************************************
//
// Function: CSubObjectPerm::AddGuid
//
// Description:
//
// Parameters:
//
// Return:
//
// History: 11/09/99 leonardm Created.
//
//******************************************************************************
HRESULT CSubObjectPerm::AddGuid(GUID* pGuid)
{
CTLink<GUID>* pLink = new CTLink<GUID>(pGuid);
if(!pLink)
{
return E_OUTOFMEMORY;
}
if(!m_pGuidsHead)
{
m_pGuidsHead = pLink;
}
else
{
m_pGuidsTail->m_pNext = pLink;
}
m_pGuidsTail = pLink;
return S_OK;
}
//******************************************************************************
//
// Function: CSubObjectPerm::ProcessAceMask
//
// Description:
//
// Parameters:
//
// Return:
//
// History: 11/09/99 leonardm Created.
//
//******************************************************************************
void CSubObjectPerm::ProcessAceMask(DWORD dwMask, EPermission permission, GUID* pGuid)
{
bool bAceApplies = false;
if(!pGuid)
{
bAceApplies = true;
}
else if(pGuid && m_pGuidsHead)
{
CTLink<GUID>* pLinkIterator = m_pGuidsHead;
while(pLinkIterator)
{
if(*(pLinkIterator->m_pData) == *pGuid)
{
bAceApplies = true;
break;
}
pLinkIterator = pLinkIterator->m_pNext;
}
}
if(bAceApplies)
{
DWORD dwTemp = 0x00000001;
for(int i = 0; i < MAX_PERM_BITS; i++)
{
if((dwMask & dwTemp) && (permissionBits[i] == PERMISSION_NOT_SET))
{
permissionBits[i] = permission;
}
dwTemp <<= 1;
}
}
}
//******************************************************************************
//
// Function: CSubObjectPerm::AccumulatedPermissions
//
// Description:
//
// Parameters:
//
// Return:
//
// History: 11/09/99 leonardm Created.
//
//******************************************************************************
DWORD CSubObjectPerm::GetAccumulatedPermissions()
{
DWORD dwAccumulatedPermissions = 0;
for(int i = MAX_PERM_BITS - 1; i >= 0; i--)
{
dwAccumulatedPermissions <<= 1;
if(permissionBits[i] == PERMISSION_ALLOWED)
{
dwAccumulatedPermissions |= 0x00000001;
}
}
return dwAccumulatedPermissions;
}
//******************************************************************************
//
// Function: CSubObjectPerm::AnyDenied
//
// Description:
//
// Parameters:
//
// Return:
//
// History: 11/09/99 leonardm Created.
//
//******************************************************************************
bool CSubObjectPerm::AnyDenied()
{
for(int i = 0; i < MAX_PERM_BITS; i++)
{
if(permissionBits[i] == PERMISSION_DENIED)
{
return true;
}
}
return false;
}
//******************************************************************************
//
// Struct: CDSObject
//
// Description:
//
//
// History: 10/25/99 leonardm Created.
//
//******************************************************************************
struct CDSObject
{
DWORD m_dwLevel;
GUID* m_pGuid;
CDSObject() : m_pGuid(NULL){}
~CDSObject()
{
delete m_pGuid;
}
};
//******************************************************************************
//
// Class: CAccumulatedPermissions
//
// Description:
//
//
// History: 10/25/99 leonardm Created.
//
//******************************************************************************
class CAccumulatedPermissions
{
CTLink<CSubObjectPerm>* m_pSubObjectsHead;
CTLink<CSubObjectPerm>* m_pSubObjectsTail;
CTLink<CDSObject>* m_pDSObjectsHead;
CTLink<CDSObject>* m_pDSObjectsTail;
bool m_bInitialized;
public:
CAccumulatedPermissions(POBJECT_TYPE_LIST pObjectTypeList,
DWORD ObjectTypeListLength);
~CAccumulatedPermissions();
void ProcessAceMask(DWORD dwMask, EPermission permission, GUID* pGuid);
DWORD GetAccumulatedPermissions();
bool AnyDenied();
bool Initialized(){return m_bInitialized;}
};
//******************************************************************************
//
// Function: CAccumulatedPermissions::CAccumulatedPermissions
//
// Description:
//
// Parameters:
//
// Return:
//
// History: 10/25/99 leonardm Created.
//
//******************************************************************************
CAccumulatedPermissions::CAccumulatedPermissions( POBJECT_TYPE_LIST pObjectTypeList,
DWORD ObjectTypeListLength) :
m_pSubObjectsHead(NULL),
m_pSubObjectsTail(NULL),
m_bInitialized(false),
m_pDSObjectsHead(NULL),
m_pDSObjectsTail(NULL)
{
if(!pObjectTypeList || ObjectTypeListLength == 0)
{
XPtrST<CSubObjectPerm>xpSubObjectPerm = new CSubObjectPerm;
if(!xpSubObjectPerm)
{
return;
}
m_pSubObjectsHead = new CTLink<CSubObjectPerm>(xpSubObjectPerm);
if(!m_pSubObjectsHead)
{
return;
}
xpSubObjectPerm.Acquire();
m_pSubObjectsTail = m_pSubObjectsHead;
m_bInitialized = true;
return;
}
DWORD dwCurrentLevel;
for(DWORD i = 0; i < ObjectTypeListLength; i++)
{
if( i==0 )
{
//
// This assumes that the first element in the list of
// OBJECT_TYPEs pointed to by pObjectTypeList is at
// level ACCESS_OBJECT_GUID.
//
dwCurrentLevel = pObjectTypeList[i].Level;
XPtrST<CDSObject>xpDSObject = new CDSObject;
if(!xpDSObject)
{
return;
}
XPtrST<GUID>xpGuid = new GUID(*(pObjectTypeList[i].ObjectType));
if(!xpGuid)
{
return;
}
m_pDSObjectsHead = new CTLink<CDSObject>(xpDSObject);
if(!m_pDSObjectsHead)
{
return;
}
xpDSObject.Acquire();
m_pDSObjectsHead->m_pData->m_pGuid = xpGuid.Acquire();
m_pDSObjectsHead->m_pData->m_dwLevel = pObjectTypeList[i].Level;
m_pDSObjectsTail = m_pDSObjectsHead;
continue;
}
else if(pObjectTypeList[i].Level > dwCurrentLevel)
{
dwCurrentLevel = pObjectTypeList[i].Level;
XPtrST<CDSObject> xpDSObject = new CDSObject;
if(!xpDSObject)
{
return;
}
XPtrST<GUID>xpGuid = new GUID(*(pObjectTypeList[i].ObjectType));
if(!xpGuid)
{
return;
}
CTLink<CDSObject>* pDSObjectLink = new CTLink<CDSObject>(xpDSObject);
if(!pDSObjectLink)
{
return;
}
xpDSObject.Acquire();
pDSObjectLink->m_pData->m_pGuid = xpGuid.Acquire();
pDSObjectLink->m_pData->m_dwLevel = pObjectTypeList[i].Level;
pDSObjectLink->m_pPrev = m_pDSObjectsTail;
m_pDSObjectsTail->m_pNext = pDSObjectLink;
m_pDSObjectsTail = pDSObjectLink;
}
else
{
XPtrST<CSubObjectPerm>xpSubObjectPerm = new CSubObjectPerm;
if(!xpSubObjectPerm)
{
return;
}
CTLink<CSubObjectPerm>* pSubObjectLink = new CTLink<CSubObjectPerm>(xpSubObjectPerm);
if(!pSubObjectLink)
{
return;
}
xpSubObjectPerm.Acquire();
CTLink<CDSObject>* pLinkIterator = m_pDSObjectsHead;
while(pLinkIterator)
{
XPtrST<GUID>xpGuid = new GUID(*(pLinkIterator->m_pData->m_pGuid));
if(!xpGuid)
{
delete pSubObjectLink;
return;
}
if(FAILED(pSubObjectLink->m_pData->AddGuid(xpGuid)))
{
delete pSubObjectLink;
return;
}
xpGuid.Acquire();
pLinkIterator = pLinkIterator->m_pNext;
}
if(!m_pSubObjectsHead)
{
m_pSubObjectsHead = pSubObjectLink;
}
else
{
m_pSubObjectsTail->m_pNext = pSubObjectLink;
}
m_pSubObjectsTail = pSubObjectLink;
pLinkIterator = m_pDSObjectsTail;
if(pLinkIterator)
{
while(pLinkIterator->m_pData->m_dwLevel >= pObjectTypeList[i].Level)
{
CTLink<CDSObject>* pLinkToDelete = pLinkIterator;
pLinkIterator = pLinkIterator->m_pPrev;
delete pLinkToDelete;
m_pDSObjectsTail = pLinkIterator;
if(m_pDSObjectsTail)
{
m_pDSObjectsTail->m_pNext = NULL;
}
}
}
XPtrST<CDSObject>xpDSObject = new CDSObject;
if(!xpDSObject)
{
return;
}
XPtrST<GUID>xpGuid = new GUID(*(pObjectTypeList[i].ObjectType));
if(!xpGuid)
{
return;
}
CTLink<CDSObject>* pLink = new CTLink<CDSObject>(xpDSObject);
if(!pLink)
{
return;
}
xpDSObject.Acquire();
pLink->m_pData->m_pGuid = xpGuid.Acquire();
pLink->m_pData->m_dwLevel = pObjectTypeList[i].Level;
pLink->m_pPrev = m_pDSObjectsTail;
m_pDSObjectsTail->m_pNext = pLink;
m_pDSObjectsTail = pLink;
}
}
CTLink<CDSObject>* pLinkIterator = m_pDSObjectsHead;
if(pLinkIterator)
{
XPtrST<CSubObjectPerm>xpSubObject = new CSubObjectPerm;
if(!xpSubObject)
{
return;
}
CTLink<CSubObjectPerm>* pSubObjectLink = new CTLink<CSubObjectPerm>(xpSubObject);
if(!pSubObjectLink)
{
return;
}
xpSubObject.Acquire();
while(pLinkIterator)
{
XPtrST<GUID>xpGuid = new GUID(*(pLinkIterator->m_pData->m_pGuid));
if(!xpGuid)
{
delete pSubObjectLink;
return;
}
if(FAILED(pSubObjectLink->m_pData->AddGuid(xpGuid)))
{
delete pSubObjectLink;
return;
}
xpGuid.Acquire();
pLinkIterator = pLinkIterator->m_pNext;
}
if(!m_pSubObjectsHead)
{
m_pSubObjectsHead = pSubObjectLink;
}
else
{
m_pSubObjectsTail->m_pNext = pSubObjectLink;
}
m_pSubObjectsTail = pSubObjectLink;
}
pLinkIterator = m_pDSObjectsHead;
while(pLinkIterator)
{
CTLink<CDSObject>* pLinkToDelete = pLinkIterator;
pLinkIterator = pLinkIterator->m_pNext;
delete pLinkToDelete;
}
m_pDSObjectsHead = m_pDSObjectsTail = NULL;
m_bInitialized = true;
}
//******************************************************************************
//
// Function: CAccumulatedPermissions::~CAccumulatedPermissions
//
// Description:
//
// Parameters:
//
// Return:
//
// History: 10/25/99 leonardm Created.
//
//******************************************************************************
CAccumulatedPermissions::~CAccumulatedPermissions()
{
CTLink<CSubObjectPerm>* pSubObjectLinkIterator = m_pSubObjectsHead;
while(pSubObjectLinkIterator)
{
CTLink<CSubObjectPerm>* pSubObjectLinkToDelete = pSubObjectLinkIterator;
pSubObjectLinkIterator = pSubObjectLinkIterator->m_pNext;
delete pSubObjectLinkToDelete;
}
CTLink<CDSObject>* pDSObjectLinkIterator = m_pDSObjectsHead;
while(pDSObjectLinkIterator)
{
CTLink<CDSObject>* pDSObjectLinkToDelete = pDSObjectLinkIterator;
pDSObjectLinkIterator = pDSObjectLinkIterator->m_pNext;
delete pDSObjectLinkToDelete;
}
}
//******************************************************************************
//
// Function: CAccumulatedPermissions::ProcessAceMask
//
// Description:
//
// Parameters:
//
// Return:
//
// History: 8/8/99 leonardm Created.
//
//******************************************************************************
void CAccumulatedPermissions::ProcessAceMask(DWORD dwMask, EPermission permission, GUID* pGuid)
{
CTLink<CSubObjectPerm>* pLinkIterator = m_pSubObjectsHead;
while(pLinkIterator)
{
pLinkIterator->m_pData->ProcessAceMask(dwMask, permission, pGuid);
pLinkIterator = pLinkIterator->m_pNext;
}
}
//******************************************************************************
//
// Function: CAccumulatedPermissions::AccumulatedPermissions
//
// Description:
//
// Parameters:
//
// Return:
//
// History: 8/8/99 leonardm Created.
//
//******************************************************************************
DWORD CAccumulatedPermissions::GetAccumulatedPermissions()
{
DWORD dwAccumulatedPermissions = 0x01FFFFFF;
CTLink<CSubObjectPerm>* pLinkIterator = m_pSubObjectsHead;
while(pLinkIterator)
{
dwAccumulatedPermissions &= pLinkIterator->m_pData->GetAccumulatedPermissions();
pLinkIterator = pLinkIterator->m_pNext;
}
return dwAccumulatedPermissions;
}
//******************************************************************************
//
// Function: CAccumulatedPermissions::AnyDenied
//
// Description:
//
// Parameters:
//
// Return:
//
// History: 8/8/99 leonardm Created.
//
//******************************************************************************
bool CAccumulatedPermissions::AnyDenied()
{
CTLink<CSubObjectPerm>* pLinkIterator = m_pSubObjectsHead;
while(pLinkIterator)
{
if(pLinkIterator->m_pData->AnyDenied())
{
return true;
}
pLinkIterator = pLinkIterator->m_pNext;
}
return false;
}
//******************************************************************************
//
// Function: LogGuid
//
// Description:
//
// Parameters:
//
// Return: void
//
// History: 10/26/99 leonardm Created.
//
//******************************************************************************
void LogGuid(GUID& guid)
{
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogGuid - Entering.");
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogGuid - {0x%08x 0x%04x 0x%04x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x 0x%02x}",
guid.Data1,
guid.Data2,
guid.Data3,
guid.Data4[0],
guid.Data4[1],
guid.Data4[2],
guid.Data4[3],
guid.Data4[4],
guid.Data4[5],
guid.Data4[6],
guid.Data4[7]);
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogGuid - (%08x-%04x-%04x-%02x%02x%02x%02x%02x%02x%02x%02x)",
guid.Data1,
guid.Data2,
guid.Data3,
guid.Data4[0],
guid.Data4[1],
guid.Data4[2],
guid.Data4[3],
guid.Data4[4],
guid.Data4[5],
guid.Data4[6],
guid.Data4[7]);
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogGuid - Leaving.");
}
//******************************************************************************
//
// Function: LogSid
//
// Description:
//
// Parameters:
//
// Return: void
//
// History: 10/26/99 leonardm Created.
//
//******************************************************************************
void LogSid(PSID pSid)
{
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogSid - Entering.");
XPtrST<CSid>xpCSid = new CSid(pSid);
if(!xpCSid)
{
dbg.Msg(DEBUG_MESSAGE_WARNING, L"LogSid - Call to operator new failed.");
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogSid - Leaving.");
return;
}
if(!(xpCSid->IsValid()))
{
dbg.Msg(DEBUG_MESSAGE_WARNING, L"LogSid - call to CSid::IsValid returned false.");
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogSid - Leaving.");
return;
}
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogSid - Sid string: %s.", xpCSid->SidString());
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogSid - Sid User: %s.", xpCSid->User());
if(xpCSid->SidType() == SidTypeUser)
{
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogSid - Sid type: SidTypeUser.");
}
else if(xpCSid->SidType() == SidTypeGroup)
{
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogSid - Sid type: SidTypeGroup.");
}
else if(xpCSid->SidType() == SidTypeDomain)
{
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogSid - Sid type: SidTypeDomain.");
}
else if(xpCSid->SidType() == SidTypeAlias)
{
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogSid - Sid type: SidTypeAlias.");
}
else if(xpCSid->SidType() == SidTypeWellKnownGroup)
{
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogSid - Sid type: SidTypeWellKnownGroup.");
}
else if(xpCSid->SidType() == SidTypeDeletedAccount)
{
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogSid - Sid type: SidTypeDeletedAccount.");
}
else if(xpCSid->SidType() == SidTypeInvalid)
{
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogSid - Sid type: SidTypeInvalid.");
}
else if(xpCSid->SidType() == SidTypeUnknown)
{
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogSid - Sid type: SidTypeUnknown.");
}
else if(xpCSid->SidType() == SidTypeComputer)
{
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogSid - Sid type: SidTypeComputer.");
}
else
{
dbg.Msg(DEBUG_MESSAGE_WARNING, L"LogSid - Sid type: UNKNOWN SID type.");
}
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogSid - Sid Domain: %s.", xpCSid->Domain());
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogSid - Sid Computer: %s.", xpCSid->Computer());
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogSid - Leaving.");
}
//******************************************************************************
//
// Function: LogAce
//
// Description:
//
// Parameters:
//
// Return: void
//
// History: 10/26/99 leonardm Created.
//
//******************************************************************************
void LogAce(PACE_HEADER pAceHeader)
{
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogAce - Entering.");
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogAce - AceType = 0x%08X.", pAceHeader->AceType);
PACCESS_ALLOWED_ACE pACCESS_ALLOWED_ACE = NULL;
PACCESS_ALLOWED_OBJECT_ACE pACCESS_ALLOWED_OBJECT_ACE = NULL;
PACCESS_DENIED_ACE pACCESS_DENIED_ACE = NULL;
PACCESS_DENIED_OBJECT_ACE pACCESS_DENIED_OBJECT_ACE = NULL;
PSYSTEM_AUDIT_ACE pSYSTEM_AUDIT_ACE = NULL;
PSYSTEM_AUDIT_OBJECT_ACE pSYSTEM_AUDIT_OBJECT_ACE = NULL;
PSYSTEM_ALARM_ACE pSYSTEM_ALARM_ACE = NULL;
PSYSTEM_ALARM_OBJECT_ACE pSYSTEM_ALARM_OBJECT_ACE = NULL;
switch(pAceHeader->AceType)
{
case ACCESS_ALLOWED_ACE_TYPE:
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogAce - ACE type: ACCESS_ALLOWED_ACE_TYPE");
pACCESS_ALLOWED_ACE = reinterpret_cast<PACCESS_ALLOWED_ACE>(pAceHeader);
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogAce - ACE Mask: 0x%08X", pACCESS_ALLOWED_ACE->Mask);
break;
case ACCESS_ALLOWED_OBJECT_ACE_TYPE:
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogAce - ACE type: ACCESS_ALLOWED_OBJECT_ACE_TYPE");
pACCESS_ALLOWED_OBJECT_ACE = reinterpret_cast<PACCESS_ALLOWED_OBJECT_ACE>(pAceHeader);
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogAce - ACE Mask: 0x%08X", pACCESS_ALLOWED_OBJECT_ACE->Mask);
if(pACCESS_ALLOWED_OBJECT_ACE->Flags & ACE_OBJECT_TYPE_PRESENT)
{
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogAce - Flag is on: ACE_OBJECT_TYPE_PRESENT.");
LogGuid(pACCESS_ALLOWED_OBJECT_ACE->ObjectType);
}
if(pACCESS_ALLOWED_OBJECT_ACE->Flags & ACE_INHERITED_OBJECT_TYPE_PRESENT)
{
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogAce - Flag is on: ACE_INHERITED_OBJECT_TYPE_PRESENT.");
LogGuid(pACCESS_ALLOWED_OBJECT_ACE->InheritedObjectType);
}
break;
case ACCESS_DENIED_ACE_TYPE:
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogAce - ACE type: ACCESS_DENIED_ACE_TYPE");
pACCESS_DENIED_ACE = reinterpret_cast<PACCESS_DENIED_ACE>(pAceHeader);
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogAce - ACE Mask: 0x%08X", pACCESS_DENIED_ACE->Mask);
break;
case ACCESS_DENIED_OBJECT_ACE_TYPE:
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogAce - ACE type: ACCESS_DENIED_OBJECT_ACE_TYPE");
pACCESS_DENIED_OBJECT_ACE = reinterpret_cast<PACCESS_DENIED_OBJECT_ACE>(pAceHeader);
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogAce - ACE Mask: 0x%08X", pACCESS_DENIED_OBJECT_ACE->Mask);
if(pACCESS_DENIED_OBJECT_ACE->Flags & ACE_OBJECT_TYPE_PRESENT)
{
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogAce - Flag is on: ACE_OBJECT_TYPE_PRESENT.");
LogGuid(pACCESS_DENIED_OBJECT_ACE->ObjectType);
}
if(pACCESS_DENIED_OBJECT_ACE->Flags & ACE_INHERITED_OBJECT_TYPE_PRESENT)
{
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogAce - Flag is on: ACE_INHERITED_OBJECT_TYPE_PRESENT.");
LogGuid(pACCESS_DENIED_OBJECT_ACE->InheritedObjectType);
}
break;
case SYSTEM_AUDIT_ACE_TYPE:
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogAce - ACE type: SYSTEM_AUDIT_ACE_TYPE");
pSYSTEM_AUDIT_ACE = reinterpret_cast<PSYSTEM_AUDIT_ACE>(pAceHeader);
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogAce - ACE Mask: 0x%08X", pSYSTEM_AUDIT_ACE->Mask);
break;
case SYSTEM_AUDIT_OBJECT_ACE_TYPE:
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogAce - ACE type: SYSTEM_AUDIT_OBJECT_ACE_TYPE");
pSYSTEM_AUDIT_OBJECT_ACE = reinterpret_cast<PSYSTEM_AUDIT_OBJECT_ACE>(pAceHeader);
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogAce - ACE Mask: 0x%08X", pSYSTEM_AUDIT_OBJECT_ACE->Mask);
if(pSYSTEM_AUDIT_OBJECT_ACE->Flags & ACE_OBJECT_TYPE_PRESENT)
{
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogAce - Flag is on: ACE_OBJECT_TYPE_PRESENT.");
LogGuid(pSYSTEM_AUDIT_OBJECT_ACE->ObjectType);
}
if(pSYSTEM_AUDIT_OBJECT_ACE->Flags & ACE_INHERITED_OBJECT_TYPE_PRESENT)
{
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogAce - Flag is on: ACE_INHERITED_OBJECT_TYPE_PRESENT.");
LogGuid(pSYSTEM_AUDIT_OBJECT_ACE->InheritedObjectType);
}
break;
case SYSTEM_ALARM_ACE_TYPE:
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogAce - ACE type: SYSTEM_ALARM_ACE_TYPE");
pSYSTEM_ALARM_ACE = reinterpret_cast<PSYSTEM_ALARM_ACE>(pAceHeader);
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogAce - ACE Mask: 0x%08X", pSYSTEM_ALARM_ACE->Mask);
break;
case SYSTEM_ALARM_OBJECT_ACE_TYPE:
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogAce - ACE type: SYSTEM_ALARM_OBJECT_ACE_TYPE");
pSYSTEM_ALARM_OBJECT_ACE = reinterpret_cast<PSYSTEM_ALARM_OBJECT_ACE>(pAceHeader);
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogAce - ACE Mask: 0x%08X", pSYSTEM_ALARM_OBJECT_ACE->Mask);
if(pSYSTEM_ALARM_OBJECT_ACE->Flags & ACE_OBJECT_TYPE_PRESENT)
{
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogAce - Flag is on: ACE_OBJECT_TYPE_PRESENT.");
LogGuid(pSYSTEM_ALARM_OBJECT_ACE->ObjectType);
}
if(pSYSTEM_ALARM_OBJECT_ACE->Flags & ACE_INHERITED_OBJECT_TYPE_PRESENT)
{
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogAce - Flag is on: ACE_INHERITED_OBJECT_TYPE_PRESENT.");
LogGuid(pSYSTEM_ALARM_OBJECT_ACE->InheritedObjectType);
}
break;
default:
dbg.Msg(DEBUG_MESSAGE_WARNING, L"LogAce - ACE type: UNKNOWN ACE type.");
break;
}
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogAce - AceFlags = 0x%08X.", pAceHeader->AceFlags);
if(pAceHeader->AceFlags & OBJECT_INHERIT_ACE)
{
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogAce - The Following ACE header flag is on: OBJECT_INHERIT_ACE.");
}
if(pAceHeader->AceFlags & CONTAINER_INHERIT_ACE)
{
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogAce - The Following ACE header flag is on: CONTAINER_INHERIT_ACE.");
}
if(pAceHeader->AceFlags & NO_PROPAGATE_INHERIT_ACE)
{
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogAce - The Following ACE header flag is on: NO_PROPAGATE_INHERIT_ACE.");
}
if(pAceHeader->AceFlags & INHERIT_ONLY_ACE)
{
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogAce - The Following ACE header flag is on: INHERIT_ONLY_ACE.");
}
if(pAceHeader->AceFlags & INHERITED_ACE)
{
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogAce - The Following ACE header flag is on: INHERITED_ACE.");
}
if(pAceHeader->AceFlags & SUCCESSFUL_ACCESS_ACE_FLAG)
{
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogAce - The Following ACE header flag is on: SUCCESSFUL_ACCESS_ACE_FLAG.");
}
if(pAceHeader->AceFlags & FAILED_ACCESS_ACE_FLAG)
{
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogAce - The Following ACE header flag is on: FAILED_ACCESS_ACE_FLAG.");
}
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogAce - AceSize = 0x%08X.", pAceHeader->AceSize);
PISID pSid = GetAceSid(pAceHeader);
if(!pSid)
{
dbg.Msg(DEBUG_MESSAGE_WARNING, L"LogAce - Call to GetAceSid failed.");
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogAce - Leaving.");
return;
}
LogSid(pSid);
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"LogAce - Leaving.");
}
//******************************************************************************
//
// Function: ProcessAce
//
// Description:
//
// Parameters:
//
// Return: S_OK on success. An HRESULT error code on failure.
//
// History: 8/8/99 leonardm Created.
//
//******************************************************************************
HRESULT ProcessAce( PACE_HEADER pAceHeader,
PRSOPTOKEN pRsopToken,
POBJECT_TYPE_LIST pObjectTypeList,
DWORD ObjectTypeListLength,
DWORD dwDesiredAccessMask,
CAccumulatedPermissions& accumulatedPermissions,
bool* pbAccessExplicitlyDenied)
{
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"ProcessAce - Entering.");
//
// Check parameters.
//
if( !pAceHeader || !pRsopToken ||
(ObjectTypeListLength && !pObjectTypeList) ||
!pbAccessExplicitlyDenied)
{
dbg.Msg(DEBUG_MESSAGE_WARNING, L"ProcessAce - Invalid argument(s).");
return E_FAIL;
}
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"ProcessAce - Desired Access Mask: 0x%08X.", dwDesiredAccessMask);
if(dwDesiredAccessMask == MAXIMUM_ALLOWED)
{
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"ProcessAce - Desired Access Mask == MAXIMUM_ALLOWED.");
}
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"ProcessAce - Accumulated Permissions BEFORE Processing Ace: 0x%08X.", accumulatedPermissions.GetAccumulatedPermissions());
//
// Log ACE information
//
LogAce(pAceHeader);
*pbAccessExplicitlyDenied = false;
//
// ACEs with INHERIT_ONLY_ACE flag do no control access to the current object.
// Therefore, we ignore them.
//
if(pAceHeader->AceFlags & INHERIT_ONLY_ACE)
{
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"ProcessAce - Found ACE with INHERIT_ONLY_ACE flag. Ace does not apply.");
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"ProcessAce - Leaving.");
return S_OK;
}
//
// If this ACE does not reference any of the SIDs contained in the RsopToken,
// we ignore it.
//
bool bAceApplies;
HRESULT hr = CheckAceApplies(pAceHeader, pRsopToken, &bAceApplies);
if(FAILED(hr))
{
dbg.Msg(DEBUG_MESSAGE_WARNING, L"ProcessAce - CheckAceApplies failed. Return code: 0x%08X", hr);
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"ProcessAce - Leaving.");
return hr;
}
if(!bAceApplies)
{
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"ProcessAce - ACE does not apply.");
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"ProcessAce - Leaving.");
return S_OK;
}
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"ProcessAce - ACE aplies.");
PACCESS_ALLOWED_ACE pACCESS_ALLOWED_ACE;
PACCESS_ALLOWED_OBJECT_ACE pACCESS_ALLOWED_OBJECT_ACE;
PACCESS_DENIED_ACE pACCESS_DENIED_ACE;
PACCESS_DENIED_OBJECT_ACE pACCESS_DENIED_OBJECT_ACE;
DWORD i;
DWORD dwMask;
switch(pAceHeader->AceType)
{
case ACCESS_ALLOWED_ACE_TYPE:
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"ProcessAce - ACE type: ACCESS_ALLOWED_ACE_TYPE");
pACCESS_ALLOWED_ACE = reinterpret_cast<PACCESS_ALLOWED_ACE>(pAceHeader);
//
// If the requested access is MAXIMUM_ALLOWED, consider all bits in the Mask
// controlled by this ACE.
// Otherwise, consider only those bits that are also specified in the
// desired access mask.
//
if(dwDesiredAccessMask == MAXIMUM_ALLOWED)
{
dwMask = pACCESS_ALLOWED_ACE->Mask;
}
else
{
dwMask = dwDesiredAccessMask & pACCESS_ALLOWED_ACE->Mask;
}
accumulatedPermissions.ProcessAceMask( dwMask,
PERMISSION_ALLOWED,
NULL);
break;
case ACCESS_ALLOWED_OBJECT_ACE_TYPE:
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"ProcessAce - ACE type: ACCESS_ALLOWED_OBJECT_ACE_TYPE");
pACCESS_ALLOWED_OBJECT_ACE = reinterpret_cast<PACCESS_ALLOWED_OBJECT_ACE>(pAceHeader);
//
// We have chosen to process only those object ACEs that have
// the flag ACE_OBJECT_TYPE_PRESENT set.
//
if(pACCESS_ALLOWED_OBJECT_ACE->Flags & ACE_OBJECT_TYPE_PRESENT)
{
//
// Notice that if this function is invoked with no
// ObjectTypeList, object ACEs are disregarded.
//
for(i = 0; i < ObjectTypeListLength; i++)
{
POBJECT_TYPE_LIST pObjectType = &(pObjectTypeList[i]);
if(*(pObjectType->ObjectType) == pACCESS_ALLOWED_OBJECT_ACE->ObjectType)
{
//
// If the requested access is MAXIMUM_ALLOWED, consider all bits in the Mask
// controlled by this ACE.
// Otherwise, consider only those bits that are also specified in the
// desired access mask.
//
if(dwDesiredAccessMask == MAXIMUM_ALLOWED)
{
dwMask = pACCESS_ALLOWED_OBJECT_ACE->Mask;
}
else
{
dwMask = dwDesiredAccessMask & pACCESS_ALLOWED_OBJECT_ACE->Mask;
}
accumulatedPermissions.ProcessAceMask( dwMask,
PERMISSION_ALLOWED,
&(pACCESS_ALLOWED_OBJECT_ACE->ObjectType));
break;
}
}
}
break;
case ACCESS_DENIED_ACE_TYPE:
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"ProcessAce - ACE type: ACCESS_DENIED_ACE_TYPE");
pACCESS_DENIED_ACE = reinterpret_cast<PACCESS_DENIED_ACE>(pAceHeader);
//
// If the requested access is MAXIMUM_ALLOWED, consider all bits in the Mask
// controlled by this ACE.
// Otherwise, consider only those bits that are also specified in the
// desired access mask.
//
if(dwDesiredAccessMask == MAXIMUM_ALLOWED)
{
dwMask = pACCESS_DENIED_ACE->Mask;
}
else
{
dwMask = dwDesiredAccessMask & pACCESS_DENIED_ACE->Mask;
}
accumulatedPermissions.ProcessAceMask( dwMask,
PERMISSION_DENIED,
NULL);
if(dwDesiredAccessMask != MAXIMUM_ALLOWED)
{
if(accumulatedPermissions.AnyDenied())
{
*pbAccessExplicitlyDenied = true;
}
}
break;
case ACCESS_DENIED_OBJECT_ACE_TYPE:
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"ProcessAce - ACE type: ACCESS_DENIED_OBJECT_ACE_TYPE");
pACCESS_DENIED_OBJECT_ACE = reinterpret_cast<PACCESS_DENIED_OBJECT_ACE>(pAceHeader);
//
// We have chosen to process only those object ACEs that have
// the flag ACE_OBJECT_TYPE_PRESENT set.
//
if(pACCESS_DENIED_OBJECT_ACE->Flags & ACE_OBJECT_TYPE_PRESENT)
{
//
// Notice that if this function is invoked with no
// ObjectTypeList, object ACEs are disregarded.
//
for(i = 0; i < ObjectTypeListLength; i++)
{
POBJECT_TYPE_LIST pObjectType = &(pObjectTypeList[i]);
if(*(pObjectType->ObjectType) == pACCESS_DENIED_OBJECT_ACE->ObjectType)
{
//
// If the requested access is MAXIMUM_ALLOWED, consider all bits in the Mask
// controlled by this ACE.
// Otherwise, consider only those bits that are also specified in the
// desired access mask.
//
if(dwDesiredAccessMask == MAXIMUM_ALLOWED)
{
dwMask = pACCESS_DENIED_OBJECT_ACE->Mask;
}
else
{
dwMask = dwDesiredAccessMask & pACCESS_DENIED_OBJECT_ACE->Mask;
}
accumulatedPermissions.ProcessAceMask( dwMask,
PERMISSION_DENIED,
&(pACCESS_DENIED_OBJECT_ACE->ObjectType));
if(dwDesiredAccessMask != MAXIMUM_ALLOWED)
{
if(accumulatedPermissions.AnyDenied())
{
*pbAccessExplicitlyDenied = true;
}
}
break;
}
}
}
break;
default:
dbg.Msg(DEBUG_MESSAGE_WARNING, L"ProcessAce - Unexpected ACE type found in ACE header. Type: 0x%08x", pAceHeader->AceType);
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"ProcessAce - Leaving.");
return E_FAIL;
break;
}
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"ProcessAce - Accumulated Permissions AFTER Processing Ace: 0x%08X.", accumulatedPermissions.GetAccumulatedPermissions());
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"ProcessAce - Leaving.");
return S_OK;
}
//******************************************************************************
//
// Function: RsopAccessCheckByType
//
// Description:
//
// Parameters: - pSecurityDescriptor,
// - pPrincipalSelfSid:
// - pRsopToken:
// - dwDesiredAccessMask:
// - pObjectTypeList:
// - ObjectTypeListLength:
// - pGenericMapping:
// - pPrivilegeSet:
// - pdwPrivilegeSetLength:
// - pdwGrantedAccessMask:
// - pbAccessStatus:
//
// Return: S_OK on success. An HRESULT error code on failure.
//
// History: 7/30/99 leonardm Created.
//
//******************************************************************************
HRESULT RsopAccessCheckByType( PSECURITY_DESCRIPTOR pSecurityDescriptor,
PSID pPrincipalSelfSid,
PRSOPTOKEN pRsopToken,
DWORD dwDesiredAccessMask,
POBJECT_TYPE_LIST pObjectTypeList,
DWORD ObjectTypeListLength,
PGENERIC_MAPPING pGenericMapping,
PPRIVILEGE_SET pPrivilegeSet,
LPDWORD pdwPrivilegeSetLength,
LPDWORD pdwGrantedAccessMask,
LPBOOL pbAccessStatus)
{
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"RsopAccessCheckByType - Entering.");
//
// Check arguments.
//
if( !pSecurityDescriptor |
!IsValidSecurityDescriptor(pSecurityDescriptor) |
!pRsopToken |
!pGenericMapping |
!pdwGrantedAccessMask |
!pbAccessStatus)
{
dbg.Msg(DEBUG_MESSAGE_WARNING, L"RsopAccessCheckByType - Function invoked with invalid arguments.");
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"RsopAccessCheckByType - Leaving.");
return E_INVALIDARG;
}
//
// Get the DACL from the Security Descriptor
//
BOOL bDaclPresent;
PACL pDacl;
BOOL bDaclDefaulted;
if(!GetSecurityDescriptorDacl(pSecurityDescriptor, &bDaclPresent, &pDacl, &bDaclDefaulted))
{
DWORD dwLastError = GetLastError();
dbg.Msg(DEBUG_MESSAGE_WARNING, L"RsopAccessCheckByType - GetSecurityDescriptorDacl failed. GetLastError=0x%08X", dwLastError);
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"RsopAccessCheckByType - Leaving.");
return E_FAIL;
}
//
// Map generic rights specified in dwDesiredAccessMask to standard
// and specific rights.
// This is necessary because the ACEs in the DACL specify standard
// and specific rights only.
//
if(dwDesiredAccessMask != MAXIMUM_ALLOWED)
{
MapGenericMask(&dwDesiredAccessMask, pGenericMapping);
}
//
// If no DACL is present (as indicated by bDaclPresent) in the security descriptor,
// or if it present (as indicated by bDaclPresent) but it is a NULL DACL
// the object implicitly grants all access.
//
if(!bDaclPresent || pDacl == NULL)
{
if(dwDesiredAccessMask == MAXIMUM_ALLOWED)
{
*pdwGrantedAccessMask = pGenericMapping->GenericAll |
pGenericMapping->GenericExecute |
pGenericMapping->GenericRead |
pGenericMapping->GenericWrite;
}
else
{
*pdwGrantedAccessMask = dwDesiredAccessMask;
}
*pbAccessStatus = TRUE;
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"RsopAccessCheckByType - No DACL present. All access is granted.");
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"RsopAccessCheckByType - Leaving.");
return S_OK;
}
DWORD dwAceCount = pDacl->AceCount;
//
// If the DACL is present but it is empty,
// the object implicitly denies access to everyone.
//
if(!dwAceCount)
{
*pdwGrantedAccessMask = 0;
*pbAccessStatus = FALSE;
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"RsopAccessCheckByType - The DACL is present but it is empty. All access is denied.");
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"RsopAccessCheckByType - Leaving.");
return S_OK;
}
//
// At this point we have an array of ACES structures
//
// If the desired access is different from MAXIMUM_ALLOWED,
// inspect them until one of the following happens:
//
// 1. An ACE is found which explicitly denies one of the requested
// access rights. In this case checking stops immediately and
// access is (explicitly) denied.
//
// 2. All the requested accesses are explicitly granted by one or
// more ACEs. In this case checking stops immediately and
// access is (explicitly) allowed.
//
//
// 3. All the ACEs have been inspected inspected and there is at least
// one requested access right that has not been explicitly allowed.
// In this case, access is (implicitly) denied.
//
// If the desired access is MAXIMUM_ALLOWED, inspect all the ACEs.
//
PISID pSid;
BYTE* pByte;
CAccumulatedPermissions accumulatedPermissions( pObjectTypeList, ObjectTypeListLength);
if(!accumulatedPermissions.Initialized())
{
dbg.Msg(DEBUG_MESSAGE_WARNING, L"RsopAccessCheckByType - CAccumulatedPermissions failed to initialize.");
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"RsopAccessCheckByType - Leaving.");
return E_FAIL;
}
*pdwGrantedAccessMask = 0;
*pbAccessStatus = FALSE;
//
// Log SID information contained in the RsopToken.
//
CRsopToken* pToken = static_cast<CRsopToken*>(pRsopToken);
for(CTLink<CSid>* pLink = pToken->m_pSidsHead; pLink; pLink = pLink->m_pNext)
{
LogSid(pLink->m_pData->GetSidPtr());
}
//
// The first ACE immediately follows the DACL structure. We don't know up front
// the type of ACE so we get the ACE header which has a format common to all
// ACE types.
//
PACE_HEADER pAceHeader = reinterpret_cast<PACE_HEADER>(pDacl+1);
for(DWORD i=0; i<dwAceCount; i++)
{
bool bAccessExplicitlyDenied;
HRESULT hr = ProcessAce(pAceHeader,
pRsopToken,
pObjectTypeList,
ObjectTypeListLength,
dwDesiredAccessMask,
accumulatedPermissions,
&bAccessExplicitlyDenied);
if(FAILED(hr))
{
dbg.Msg(DEBUG_MESSAGE_WARNING, L"RsopAccessCheckByType - ProcessAce failed. Return code: 0x%08X", hr);
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"RsopAccessCheckByType - Leaving.");
return hr;
}
//
// If, this ACE explicitly denies any of the requested access rights,
// stop immediately. Access is denied.
// ProcessAce will never set this variable to true when dwDesiredAccessMask
// is MAXIMUM_ALLOWED.
//
if(bAccessExplicitlyDenied)
{
*pdwGrantedAccessMask = 0;
*pbAccessStatus = FALSE;
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"RsopAccessCheckByType - An ACE explicitly denies any of the requested access rights. Access is denied.");
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"RsopAccessCheckByType - Leaving.");
return S_OK;
}
//
// If, after processing this ACE all requested access rights have been granted,
// stop immediately. Access is granted.
//
DWORD dwAccumulatedPermissions = accumulatedPermissions.GetAccumulatedPermissions();
if((dwDesiredAccessMask != MAXIMUM_ALLOWED) && (dwAccumulatedPermissions == dwDesiredAccessMask))
{
*pdwGrantedAccessMask = dwDesiredAccessMask;
*pbAccessStatus = TRUE;
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"RsopAccessCheckByType - dwDesiredAccessMask != MAXIMUM_ALLOWED && dwAccumulatedPermissions == dwDesiredAccessMask. Access is granted.");
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"RsopAccessCheckByType - Leaving.");
return S_OK;
}
//
// Otherwise, point to the next ACE.
//
pAceHeader = reinterpret_cast<PACE_HEADER>(reinterpret_cast<BYTE*>(pAceHeader) + pAceHeader->AceSize);
}
if(dwDesiredAccessMask == MAXIMUM_ALLOWED)
{
*pdwGrantedAccessMask = accumulatedPermissions.GetAccumulatedPermissions();
*pbAccessStatus = *pdwGrantedAccessMask ? TRUE : FALSE;
}
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"RsopAccessCheckByType - Leaving.");
return S_OK;
}
//******************************************************************************
//
// Function: RsopFileAccessCheck
//
// Description: Determines whether the security descriptor pointed to by pSecurityDescriptor
// grants the set of file access rights specified in dwDesiredAccessMask
// to the client identified by the RSOPTOKEN pointed to by pRsopToken.
//
// Parameters: - pszFileName: Pointer to an existing filename.
// - pRsopToken: Pointer to a valid RSOPTOKEN against which access
// is to be checked.
// - dwDesiredAccessMask: Mask of requested generic and/or standard and/or specific access rights,
// - pdwGrantedAccessMask: On success, if pbAccessStatus is true, it contains
// the mask of standard and specific rights granted.
// If pbAccessStatus is false, it is set to 0.
// On failure, it is not modified.
// - pbAccessStatus: On success, indicates wether the requested set
// of access rights was granted.
// On failure, it is not modified
//
// Return: S_OK on success. An HRESULT error code on failure.
//
// History: 7/30/99 leonardm Created.
//
//******************************************************************************
HRESULT RsopFileAccessCheck(LPTSTR pszFileName,
PRSOPTOKEN pRsopToken,
DWORD dwDesiredAccessMask,
LPDWORD pdwGrantedAccessMask,
LPBOOL pbAccessStatus)
{
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"RsopFileAccessCheck - Entering.");
//
// Check for invalid arguments.
//
if( !pszFileName |!pRsopToken | !pdwGrantedAccessMask | !pbAccessStatus)
{
dbg.Msg(DEBUG_MESSAGE_WARNING, L"RsopFileAccessCheck - Function called with invalid parameters.");
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"RsopFileAccessCheck - Leaving.");
return E_INVALIDARG;
}
//
// Attempt to get a handle with READ_CONTROL access right that can be used to
// read the security descriptor.
//
XHandle hFile = CreateFile( pszFileName,
READ_CONTROL,
FILE_SHARE_READ|FILE_SHARE_WRITE,
NULL,
OPEN_EXISTING,
0,
NULL);
if(hFile == INVALID_HANDLE_VALUE)
{
dbg.Msg(DEBUG_MESSAGE_WARNING, L"RsopFileAccessCheck - Call to CreateFile failed. Filename: %s. Last error: 0x%08X", pszFileName, GetLastError());
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"RsopFileAccessCheck - Leaving.");
return E_FAIL;
}
//
// Use the handle to get the security descriptor with only the DACL in it.
//
PACL pDacl;
XPtrLF<SECURITY_DESCRIPTOR>xpSecurityDescriptor = NULL;
DWORD status = GetSecurityInfo( hFile,
SE_FILE_OBJECT,
DACL_SECURITY_INFORMATION,
NULL,
NULL,
&pDacl,
NULL,
reinterpret_cast<void**>(&xpSecurityDescriptor));
if(status != ERROR_SUCCESS)
{
dbg.Msg(DEBUG_MESSAGE_WARNING, L"RsopFileAccessCheck - Call to GetSecurityInfo failed. Return: 0x%08X", status);
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"RsopFileAccessCheck - Leaving.");
return E_FAIL;
}
//
// This will be used by RSOPAccessCheckByType to map generic rights specified in
// dwDesiredAccessMask to standard and specific rights.
//
GENERIC_MAPPING FileGenericMapping;
FileGenericMapping.GenericRead = FILE_GENERIC_READ;
FileGenericMapping.GenericWrite = FILE_GENERIC_WRITE;
FileGenericMapping.GenericExecute = FILE_GENERIC_EXECUTE;
FileGenericMapping.GenericAll = FILE_ALL_ACCESS;
//
// Call RsopAccessCheckByType to do the actual checking.
//
HRESULT hr = RsopAccessCheckByType( xpSecurityDescriptor,
NULL,
pRsopToken,
dwDesiredAccessMask,
NULL,
0,
&FileGenericMapping,
NULL,
0,
pdwGrantedAccessMask,
pbAccessStatus);
if(SUCCEEDED(hr))
{
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"RsopFileAccessCheck - Leaving successfully.");
}
else
{
dbg.Msg(DEBUG_MESSAGE_WARNING, L"RsopFileAccessCheck - Call to RsopAccessCheckByType failed. Return: 0x%08X", hr);
dbg.Msg(DEBUG_MESSAGE_VERBOSE, L"RsopFileAccessCheck - Leaving.");
}
return hr;
}
//******************************************************************************
//
// Function: RsopSidsFromToken
//
// Description: Returns all the sids in the token
//
// Parameters: pRsopToken -- an rsop token from which to obtain sids
// ppGroups -- a pointer to the address of a TOKEN_GROUPS structure
// that will be allocated by this function and will contain
// references to the sids. The caller should free this
// pointer with LocalFree -- this will also free all memory
// referenced by the structure.
//
// Return: S_OK on success. An HRESULT error code on failure.
//
//
//******************************************************************************
HRESULT RsopSidsFromToken(PRSOPTOKEN pRsopToken,
PTOKEN_GROUPS* ppGroups)
{
HRESULT hr;
CRsopToken* pToken;
//
// Initializations
//
hr = S_OK;
*ppGroups = NULL;
pToken = (CRsopToken*) pRsopToken;
//
// First, determine the number of groups and the size
// needed for each sid
//
CTLink<CSid>* pCurrent;
DWORD cbSize;
DWORD cGroups;
cbSize = 0;
cGroups = 0;
//
// Iterate through each sid, adding its size to the total
// needed to store the sids
//
for ( pCurrent = pToken->m_pSidsHead;
pCurrent;
pCurrent = pCurrent->m_pNext)
{
cbSize += RtlLengthSid(pCurrent->m_pData->GetSidPtr());
cGroups++;
}
//
// Add in the size of the fixed portion of the return structure.
// Note that the fixed portion of the structure already has
// space for one group, so we exclude that group from the amount
// neeeded to allocate if we are allocating at least one group
//
cbSize += sizeof(TOKEN_GROUPS) + (sizeof(SID_AND_ATTRIBUTES) *
(cGroups - (cGroups ? 1 : 0)));
//
// Now allocate space for the groups
//
*ppGroups = (PTOKEN_GROUPS) LocalAlloc( LPTR, cbSize );
if ( !*ppGroups )
{
return E_OUTOFMEMORY;
}
//
// Set the count member of the structure
//
(*ppGroups)->GroupCount = cGroups;
//
// If there are groups, copy the sids
//
if ( 0 != cGroups )
{
PSID pCurrentSid;
PSID_AND_ATTRIBUTES pCurrentGroup;
//
// Set the current sid to an offset past the
// array of SID_AND_ATTRIBUTE structures that
// represents each group
//
pCurrentSid = &((*ppGroups)->Groups[cGroups]);
//
// Set the current group to the first SID_AND_ATTRIBUTE structure
//
pCurrentGroup = (PSID_AND_ATTRIBUTES) &((*ppGroups)->Groups);
//
// We have no information in the rsop token regarding
// the attributes, so we clear this member
//
pCurrentGroup->Attributes = 0;
//
// Iterate through each group and copy it
//
for (pCurrent = pToken->m_pSidsHead;
pCurrent;
pCurrent = pCurrent->m_pNext)
{
DWORD cbSid;
NTSTATUS Status;
//
// Determine the length of the source sid
//
cbSid = RtlLengthSid(pCurrent->m_pData->GetSidPtr());
//
// Copy the source sid to the current sid
//
Status = RtlCopySid(
cbSid,
pCurrentSid,
pCurrent->m_pData->GetSidPtr());
//
// Check for errors
//
if (STATUS_SUCCESS != Status)
{
hr = HRESULT_FROM_WIN32(Status);
break;
}
//
// Set the current group's sid reference to the
// current sid
//
pCurrentGroup->Sid = pCurrentSid;
//
// Move our current sid offset forward by the length of
// the current sid. Move our group reference forward as well.
//
pCurrentSid = (PSID) (((BYTE*) pCurrentSid) + cbSid);
pCurrentGroup++;
}
}
//
// Free any memory on failure and remove
// any reference to it
//
if (FAILED(hr))
{
LocalFree(*ppGroups);
*ppGroups = NULL;
}
return hr;
}
Reference in a new issue View git blame Copy permalink