527 lines
14 KiB
C++
527 lines
14 KiB
C++
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// PermPage.cxx : Implementation ACL Editor classes
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// jonn 7/14/97 copied from \nt\private\windows\shell\lmui\ntshrui\permpage.cpp
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#include "headers.hxx"
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#pragma hdrstop
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#include "acl.hxx"
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#include "resource.h" // IDS_SHAREPERM_*
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// definition in headers.hxx conflicts with stddef.h (atlbase.h)
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#undef offsetof
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#include <atlbase.h>
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CComModule _Module;
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#include <atlcom.h>
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#include <atlimpl.cpp>
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// need IID_ISecurityInformation
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#define INITGUID
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#include <initguid.h>
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#include <aclui.h>
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//
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// I define my own implementation of ISecurityInformation
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//
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class CSecurityInformation : public ISecurityInformation, public CComObjectRoot
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{
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DECLARE_NOT_AGGREGATABLE(CSecurityInformation)
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BEGIN_COM_MAP(CSecurityInformation)
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COM_INTERFACE_ENTRY(ISecurityInformation)
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END_COM_MAP()
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// *** ISecurityInformation methods ***
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STDMETHOD(GetObjectInformation) (PSI_OBJECT_INFO pObjectInfo ) = 0;
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STDMETHOD(GetSecurity) (SECURITY_INFORMATION RequestedInformation,
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PSECURITY_DESCRIPTOR *ppSecurityDescriptor,
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BOOL fDefault ) = 0;
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STDMETHOD(SetSecurity) (SECURITY_INFORMATION SecurityInformation,
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PSECURITY_DESCRIPTOR pSecurityDescriptor ) = 0;
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STDMETHOD(GetAccessRights) (const GUID* pguidObjectType,
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DWORD dwFlags,
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PSI_ACCESS *ppAccess,
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ULONG *pcAccesses,
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ULONG *piDefaultAccess );
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STDMETHOD(MapGeneric) (const GUID *pguidObjectType,
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UCHAR *pAceFlags,
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ACCESS_MASK *pMask);
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STDMETHOD(GetInheritTypes) (PSI_INHERIT_TYPE *ppInheritTypes,
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ULONG *pcInheritTypes );
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STDMETHOD(PropertySheetPageCallback)(HWND hwnd, UINT uMsg, SI_PAGE_TYPE uPage );
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protected:
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HRESULT NewDefaultDescriptor(
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PSECURITY_DESCRIPTOR* ppsd,
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SECURITY_INFORMATION RequestedInformation
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);
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HRESULT MakeSelfRelativeCopy(
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PSECURITY_DESCRIPTOR psdOriginal,
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PSECURITY_DESCRIPTOR* ppsdNew );
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};
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class CShareSecurityInformation : public CSecurityInformation
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{
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private:
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LPWSTR m_strMachineName;
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LPWSTR m_strShareName;
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public:
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void SetMachineName( LPWSTR pszMachineName )
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{
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m_strMachineName = pszMachineName;
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}
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void SetShareName( LPWSTR pszShareName )
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{
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m_strShareName = pszShareName;
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}
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// note: these should be LPCTSTR but are left this way for convenience
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LPWSTR QueryMachineName()
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{
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return m_strMachineName;
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}
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LPWSTR QueryShareName()
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{
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return m_strShareName;
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}
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// *** ISecurityInformation methods ***
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STDMETHOD(GetObjectInformation) (PSI_OBJECT_INFO pObjectInfo );
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};
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class CSMBSecurityInformation : public CShareSecurityInformation
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{
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STDMETHOD(GetSecurity) (SECURITY_INFORMATION RequestedInformation,
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PSECURITY_DESCRIPTOR *ppSecurityDescriptor,
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BOOL fDefault );
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STDMETHOD(SetSecurity) (SECURITY_INFORMATION SecurityInformation,
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PSECURITY_DESCRIPTOR pSecurityDescriptor );
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public:
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PSECURITY_DESCRIPTOR m_pInitialDescriptor;
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PSECURITY_DESCRIPTOR* m_ppCurrentDescriptor;
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CSMBSecurityInformation();
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~CSMBSecurityInformation();
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};
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// ISecurityInformation interface implementation
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SI_ACCESS siShareAccesses[] =
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{
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{ &GUID_NULL, FILE_ALL_ACCESS, MAKEINTRESOURCE(IDS_SHAREPERM_ALL), SI_ACCESS_GENERAL },
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{ &GUID_NULL, FILE_GENERIC_WRITE | DELETE, MAKEINTRESOURCE(IDS_SHAREPERM_MODIFY), SI_ACCESS_GENERAL },
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{ &GUID_NULL, FILE_GENERIC_READ, MAKEINTRESOURCE(IDS_SHAREPERM_READ), SI_ACCESS_GENERAL }
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};
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#define iShareDefAccess 2 // FILE_GEN_READ
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#ifndef ARRAYSIZE
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#define ARRAYSIZE(x) (sizeof(x)/sizeof(x[0]))
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#endif
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STDMETHODIMP CSecurityInformation::GetAccessRights (
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const GUID* pguidObjectType,
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DWORD dwFlags,
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PSI_ACCESS *ppAccess,
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ULONG *pcAccesses,
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ULONG *piDefaultAccess )
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{
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appAssert(ppAccess != NULL);
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appAssert(pcAccesses != NULL);
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appAssert(piDefaultAccess != NULL);
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*ppAccess = siShareAccesses;
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*pcAccesses = ARRAYSIZE(siShareAccesses);
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*piDefaultAccess = iShareDefAccess;
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return S_OK;
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}
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// This is consistent with the NETUI code
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GENERIC_MAPPING ShareMap =
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{
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FILE_GENERIC_READ,
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FILE_GENERIC_WRITE,
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FILE_GENERIC_EXECUTE,
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FILE_ALL_ACCESS
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};
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STDMETHODIMP CSecurityInformation::MapGeneric (
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const GUID *pguidObjectType,
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UCHAR *pAceFlags,
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ACCESS_MASK *pMask)
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{
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appAssert(pMask != NULL);
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MapGenericMask(pMask, &ShareMap);
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return S_OK;
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}
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STDMETHODIMP CSecurityInformation::GetInheritTypes (
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PSI_INHERIT_TYPE *ppInheritTypes,
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ULONG *pcInheritTypes )
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{
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appAssert(FALSE);
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return E_NOTIMPL;
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}
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STDMETHODIMP CSecurityInformation::PropertySheetPageCallback(HWND hwnd, UINT uMsg, SI_PAGE_TYPE uPage )
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{
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return S_OK;
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}
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/*
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JeffreyS 1/24/97:
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If you don't set the SI_RESET flag in
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ISecurityInformation::GetObjectInformation, then fDefault should never be TRUE
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so you can ignore it. Returning E_NOTIMPL in this case is OK too.
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If you want the user to be able to reset the ACL to some default state
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(defined by you) then turn on SI_RESET and return your default ACL
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when fDefault is TRUE. This happens if/when the user pushes a button
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that is only visible when SI_RESET is on.
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*/
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STDMETHODIMP CShareSecurityInformation::GetObjectInformation (
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PSI_OBJECT_INFO pObjectInfo )
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{
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appAssert(pObjectInfo != NULL &&
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!IsBadWritePtr(pObjectInfo, sizeof(*pObjectInfo)));
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pObjectInfo->dwFlags = SI_EDIT_ALL | SI_NO_ACL_PROTECT;
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pObjectInfo->hInstance = g_hInstance;
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pObjectInfo->pszServerName = QueryMachineName();
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pObjectInfo->pszObjectName = QueryShareName();
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return S_OK;
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}
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//
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// original code from \\marsslm\backup\src\ncpmgr\ncpmgr\shareacl.cxx
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// ACL-wrangling templated from \net\ui\common\src\lmobj\lmobj\security.cxx
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//
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// caller must free using LocalFree()
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//
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HRESULT CSecurityInformation::NewDefaultDescriptor(
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PSECURITY_DESCRIPTOR* ppsd,
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SECURITY_INFORMATION RequestedInformation
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)
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{
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*ppsd = NULL;
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PSID psidWorld = NULL;
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PSID psidAdmins = NULL;
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ACCESS_ALLOWED_ACE* pace = NULL;
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ACL* pacl = NULL;
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SECURITY_DESCRIPTOR sd;
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HRESULT hr = S_OK;
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do { // false loop
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// build World SID
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SID_IDENTIFIER_AUTHORITY IDAuthorityWorld = SECURITY_WORLD_SID_AUTHORITY;
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if ( !::AllocateAndInitializeSid(
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&IDAuthorityWorld,
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1,
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SECURITY_WORLD_RID,
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0,0,0,0,0,0,0,
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&psidWorld ) )
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{
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appAssert( FALSE );
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hr = E_UNEXPECTED;
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break;
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}
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// build Admins SID
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SID_IDENTIFIER_AUTHORITY IDAuthorityNT = SECURITY_NT_AUTHORITY;
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if ( !::AllocateAndInitializeSid(
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&IDAuthorityNT,
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2,
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SECURITY_BUILTIN_DOMAIN_RID,
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DOMAIN_ALIAS_RID_ADMINS,
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0,0,0,0,0,0,
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&psidAdmins ) )
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{
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appAssert( FALSE );
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hr = E_UNEXPECTED;
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break;
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}
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// build ACE
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DWORD cbSid = ::GetLengthSid(psidWorld);
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if ( 0 == cbSid )
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{
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appAssert( FALSE );
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hr = E_UNEXPECTED;
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break;
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}
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INT cbAce = sizeof(ACCESS_ALLOWED_ACE) + cbSid;
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pace = reinterpret_cast<ACCESS_ALLOWED_ACE*>(new BYTE[ cbAce+10 ]);
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if ( NULL == pace )
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{
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appAssert( FALSE );
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hr = HRESULT_FROM_WIN32(ERROR_NOT_ENOUGH_MEMORY);
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break;
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}
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::memset((BYTE*)pace,0,cbAce+10);
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pace->Header.AceType = ACCESS_ALLOWED_ACE_TYPE; // SetType()
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pace->Header.AceFlags = 0; // SetInheritFlags()
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pace->Header.AceSize = (WORD)cbAce; // SetSize() (in SetSID())
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pace->Mask = GENERIC_ALL; // SetAccessMask()
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::memcpy( &(pace->SidStart), psidWorld, cbSid ); // SetSID()
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// build ACL
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DWORD cbAcl = sizeof(ACL) + cbAce + 10;
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pacl = reinterpret_cast<ACL*>(new BYTE[ cbAcl ]);
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if ( NULL == pacl )
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{
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appAssert( FALSE );
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hr = HRESULT_FROM_WIN32(ERROR_NOT_ENOUGH_MEMORY);
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break;
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}
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::memset((BYTE*)pacl,0,cbAcl);
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if ( !::InitializeAcl( pacl, cbAcl, ACL_REVISION2 ) )
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{
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appAssert( FALSE );
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hr = E_UNEXPECTED;
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break;
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}
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if ( !::AddAce( pacl, ACL_REVISION2, 0, pace, cbAce ) )
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{
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appAssert( FALSE );
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hr = E_UNEXPECTED;
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break;
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}
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// build security descriptor in absolute format
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if ( !::InitializeSecurityDescriptor(
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&sd,
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SECURITY_DESCRIPTOR_REVISION ) )
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{
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appAssert( FALSE );
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hr = E_UNEXPECTED;
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break;
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}
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if ( !::SetSecurityDescriptorOwner( &sd, psidAdmins, FALSE )
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|| !::SetSecurityDescriptorGroup( &sd, psidAdmins, FALSE )
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|| !::SetSecurityDescriptorDacl( &sd, TRUE, pacl, FALSE )
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)
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{
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appAssert( FALSE );
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hr = E_UNEXPECTED;
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break;
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}
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// convert security descriptor to self-relative format
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DWORD cbSD = 0;
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// this call should fail and set cbSD to the correct size
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if ( ::MakeSelfRelativeSD( &sd, NULL, &cbSD ) || 0 == cbSD )
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{
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appAssert( FALSE );
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hr = E_UNEXPECTED;
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break;
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}
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*ppsd = reinterpret_cast<PSECURITY_DESCRIPTOR>(
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::LocalAlloc( LMEM_ZEROINIT, cbSD + 20 ) );
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if (!*ppsd)
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{
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hr = HRESULT_FROM_WIN32(ERROR_NOT_ENOUGH_MEMORY);
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break;
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}
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::memset( (BYTE*)*ppsd, 0, cbSD + 20 );
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if ( !::MakeSelfRelativeSD( &sd, *ppsd, &cbSD ) )
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{
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appAssert( FALSE );
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hr = E_UNEXPECTED;
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break;
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}
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} while (FALSE); // false loop
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// clean up
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if ( NULL != psidWorld ) {
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(void)::FreeSid( psidWorld );
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}
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if ( NULL != psidAdmins ) {
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(void)::FreeSid( psidAdmins );
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}
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delete pace;
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delete pacl;
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return hr;
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}
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HRESULT CSecurityInformation::MakeSelfRelativeCopy(
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PSECURITY_DESCRIPTOR psdOriginal,
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PSECURITY_DESCRIPTOR* ppsdNew )
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{
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appAssert( NULL != psdOriginal );
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// we have to find out whether the original is already self-relative
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SECURITY_DESCRIPTOR_CONTROL sdc = 0;
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DWORD dwRevision = 0;
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if ( !::GetSecurityDescriptorControl( psdOriginal, &sdc, &dwRevision ) )
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{
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appAssert( FALSE );
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DWORD err = ::GetLastError();
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return HRESULT_FROM_WIN32( err );
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}
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DWORD cb = ::GetSecurityDescriptorLength( psdOriginal ) + 20;
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PSECURITY_DESCRIPTOR psdSelfRelativeCopy = reinterpret_cast<PSECURITY_DESCRIPTOR>(
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::LocalAlloc(LMEM_ZEROINIT, cb) );
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if (NULL == psdSelfRelativeCopy)
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{
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return HRESULT_FROM_WIN32(ERROR_NOT_ENOUGH_MEMORY);
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}
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if ( sdc & SE_SELF_RELATIVE )
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// the original is in self-relative format, just byte-copy it
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{
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|
|
::memcpy( psdSelfRelativeCopy, psdOriginal, cb - 20 );
|
||
|
|
}
|
||
|
|
else if ( !::MakeSelfRelativeSD( psdOriginal, psdSelfRelativeCopy, &cb ) )
|
||
|
|
// the original is in absolute format, convert-copy it
|
||
|
|
{
|
||
|
|
appAssert( FALSE );
|
||
|
|
if( NULL != ::LocalFree( psdSelfRelativeCopy ) )
|
||
|
|
{
|
||
|
|
appAssert(FALSE);
|
||
|
|
}
|
||
|
|
DWORD err = ::GetLastError();
|
||
|
|
return HRESULT_FROM_WIN32( err );
|
||
|
|
}
|
||
|
|
*ppsdNew = psdSelfRelativeCopy;
|
||
|
|
return S_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
CSMBSecurityInformation::CSMBSecurityInformation()
|
||
|
|
: CShareSecurityInformation()
|
||
|
|
, m_pInitialDescriptor( NULL )
|
||
|
|
, m_ppCurrentDescriptor( NULL )
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
CSMBSecurityInformation::~CSMBSecurityInformation()
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
STDMETHODIMP CSMBSecurityInformation::GetSecurity (
|
||
|
|
SECURITY_INFORMATION RequestedInformation,
|
||
|
|
PSECURITY_DESCRIPTOR *ppSecurityDescriptor,
|
||
|
|
BOOL fDefault )
|
||
|
|
{
|
||
|
|
appAssert( NULL != m_ppCurrentDescriptor );
|
||
|
|
|
||
|
|
// NOTE: we allow NULL == ppSecurityDescriptor, see SetSecurity
|
||
|
|
if (0 == RequestedInformation )
|
||
|
|
{
|
||
|
|
appAssert(FALSE);
|
||
|
|
return E_INVALIDARG;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (fDefault)
|
||
|
|
return E_NOTIMPL;
|
||
|
|
|
||
|
|
if ( NULL == ppSecurityDescriptor )
|
||
|
|
return S_OK;
|
||
|
|
|
||
|
|
*ppSecurityDescriptor = NULL;
|
||
|
|
|
||
|
|
HRESULT hr = S_OK;
|
||
|
|
if (NULL != *m_ppCurrentDescriptor)
|
||
|
|
{
|
||
|
|
hr = MakeSelfRelativeCopy(
|
||
|
|
*m_ppCurrentDescriptor,
|
||
|
|
ppSecurityDescriptor );
|
||
|
|
appAssert( SUCCEEDED(hr) && NULL != *ppSecurityDescriptor );
|
||
|
|
}
|
||
|
|
else if (NULL != m_pInitialDescriptor)
|
||
|
|
{
|
||
|
|
hr = MakeSelfRelativeCopy(
|
||
|
|
m_pInitialDescriptor,
|
||
|
|
ppSecurityDescriptor );
|
||
|
|
appAssert( SUCCEEDED(hr) && NULL != *ppSecurityDescriptor );
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
hr = NewDefaultDescriptor(
|
||
|
|
ppSecurityDescriptor,
|
||
|
|
RequestedInformation );
|
||
|
|
appAssert( SUCCEEDED(hr) && NULL != *ppSecurityDescriptor );
|
||
|
|
}
|
||
|
|
return hr;
|
||
|
|
}
|
||
|
|
|
||
|
|
STDMETHODIMP CSMBSecurityInformation::SetSecurity (
|
||
|
|
SECURITY_INFORMATION SecurityInformation,
|
||
|
|
PSECURITY_DESCRIPTOR pSecurityDescriptor )
|
||
|
|
{
|
||
|
|
appAssert( NULL != m_ppCurrentDescriptor );
|
||
|
|
|
||
|
|
if (NULL != *m_ppCurrentDescriptor)
|
||
|
|
{
|
||
|
|
::LocalFree(*m_ppCurrentDescriptor);
|
||
|
|
*m_ppCurrentDescriptor = NULL;
|
||
|
|
}
|
||
|
|
HRESULT hr = MakeSelfRelativeCopy(
|
||
|
|
pSecurityDescriptor,
|
||
|
|
m_ppCurrentDescriptor );
|
||
|
|
appAssert( SUCCEEDED(hr) && NULL != *m_ppCurrentDescriptor );
|
||
|
|
return hr;
|
||
|
|
}
|
||
|
|
|
||
|
|
HMODULE g_hlibACLUI = NULL;
|
||
|
|
typedef BOOL (*EDIT_SECURITY_PROC) ( HWND, LPSECURITYINFO );
|
||
|
|
EDIT_SECURITY_PROC g_pfnEditSecurityProc;
|
||
|
|
|
||
|
|
LONG
|
||
|
|
EditShareAcl(
|
||
|
|
IN HWND hwndParent,
|
||
|
|
IN LPWSTR pszServerName,
|
||
|
|
IN TCHAR * pszShareName,
|
||
|
|
IN PSECURITY_DESCRIPTOR pSecDesc,
|
||
|
|
OUT BOOL* pfSecDescModified,
|
||
|
|
OUT PSECURITY_DESCRIPTOR* ppSecDesc
|
||
|
|
)
|
||
|
|
{
|
||
|
|
appAssert( ppSecDesc != NULL );
|
||
|
|
*ppSecDesc = NULL;
|
||
|
|
|
||
|
|
if (NULL == g_hlibACLUI)
|
||
|
|
{
|
||
|
|
g_hlibACLUI = ::LoadLibrary(L"ACLUI.DLL");
|
||
|
|
if (NULL == g_hlibACLUI)
|
||
|
|
{
|
||
|
|
appAssert(FALSE); // ACLUI.DLL isn't installed?
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (NULL == g_pfnEditSecurityProc)
|
||
|
|
{
|
||
|
|
g_pfnEditSecurityProc = reinterpret_cast<EDIT_SECURITY_PROC>(
|
||
|
|
::GetProcAddress(g_hlibACLUI,"EditSecurity") );
|
||
|
|
if (NULL == g_pfnEditSecurityProc)
|
||
|
|
{
|
||
|
|
appAssert(FALSE); // ACLUI.DLL is invalid?
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
CComObject<CSMBSecurityInformation>* psecinfo = NULL;
|
||
|
|
HRESULT hRes = CComObject<CSMBSecurityInformation>::CreateInstance(&psecinfo);
|
||
|
|
if ( FAILED(hRes) )
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
psecinfo->AddRef();
|
||
|
|
psecinfo->SetMachineName( pszServerName );
|
||
|
|
psecinfo->SetShareName( pszShareName );
|
||
|
|
psecinfo->m_pInitialDescriptor = pSecDesc;
|
||
|
|
psecinfo->m_ppCurrentDescriptor = ppSecDesc;
|
||
|
|
(g_pfnEditSecurityProc)(hwndParent,psecinfo);
|
||
|
|
|
||
|
|
if (NULL != pfSecDescModified)
|
||
|
|
*pfSecDescModified = (NULL != *ppSecDesc);
|
||
|
|
|
||
|
|
psecinfo->Release();
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|