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dll: create: testing

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This commit is contained in:
Bill Zissimopoulos 2016-01-15 15:05:52 -08:00
parent 5a1384462b
commit 8b1bcf3583
1 changed files with 43 additions and 28 deletions
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43
src/dll/create.c
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@ -50,7 +50,8 @@ FSP_API NTSTATUS FspAccessCheckEx(FSP_FILE_SYSTEM *FileSystem,
if (0 == FileSystem->Interface->GetSecurity ||
(!Request->Req.Create.UserMode && 0 == PSecurityDescriptor))
{
*PGrantedAccess = (MAXIMUM_ALLOWED & DesiredAccess) ? FILE_ALL_ACCESS : DesiredAccess;
*PGrantedAccess = (MAXIMUM_ALLOWED & DesiredAccess) ?
FspFileGenericMapping.GenericAll : DesiredAccess;
return STATUS_SUCCESS;
}
@ -100,6 +101,8 @@ FSP_API NTSTATUS FspAccessCheckEx(FSP_FILE_SYSTEM *FileSystem,
goto exit;
}
if (0 < SecurityDescriptorSize)
{
if (AccessCheck(SecurityDescriptor, (HANDLE)Request->Req.Create.AccessToken, FILE_TRAVERSE,
&FspFileGenericMapping, 0, &PrivilegeSetLength, &TraverseAccess, &AccessStatus))
Result = AccessStatus ? STATUS_SUCCESS : STATUS_ACCESS_DENIED;
@ -109,6 +112,7 @@ FSP_API NTSTATUS FspAccessCheckEx(FSP_FILE_SYSTEM *FileSystem,
goto exit;
}
}
}
Result = FspGetSecurity(FileSystem, (PWSTR)Request->Buffer, &FileAttributes,
&SecurityDescriptor, &SecurityDescriptorSize);
@ -116,6 +120,8 @@ FSP_API NTSTATUS FspAccessCheckEx(FSP_FILE_SYSTEM *FileSystem,
goto exit;
if (Request->Req.Create.UserMode)
{
if (0 < SecurityDescriptorSize)
{
if (AccessCheck(SecurityDescriptor, (HANDLE)Request->Req.Create.AccessToken, DesiredAccess,
&FspFileGenericMapping, 0, &PrivilegeSetLength, PGrantedAccess, &AccessStatus))
@ -124,6 +130,7 @@ FSP_API NTSTATUS FspAccessCheckEx(FSP_FILE_SYSTEM *FileSystem,
Result = FspNtStatusFromWin32(GetLastError());
if (!NT_SUCCESS(Result))
goto exit;
}
if (CheckParentDirectory)
{
@ -163,21 +170,31 @@ FSP_API NTSTATUS FspAccessCheckEx(FSP_FILE_SYSTEM *FileSystem,
goto exit;
}
}
if (0 == SecurityDescriptorSize)
*PGrantedAccess = (MAXIMUM_ALLOWED & DesiredAccess) ?
FspFileGenericMapping.GenericAll : DesiredAccess;
}
else
*PGrantedAccess = (MAXIMUM_ALLOWED & DesiredAccess) ? FILE_ALL_ACCESS : DesiredAccess;
*PGrantedAccess = (MAXIMUM_ALLOWED & DesiredAccess) ?
FspFileGenericMapping.GenericAll : DesiredAccess;
Result = STATUS_SUCCESS;
exit:
if (0 != PSecurityDescriptor)
if (0 != PSecurityDescriptor && 0 < SecurityDescriptorSize && NT_SUCCESS(Result))
*PSecurityDescriptor = SecurityDescriptor;
else
MemFree(SecurityDescriptor);
if (CheckParentDirectory)
{
FspPathCombine((PWSTR)Request->Buffer, Suffix);
if (STATUS_OBJECT_NAME_NOT_FOUND == Result)
Result = STATUS_OBJECT_PATH_NOT_FOUND;
}
return Result;
}
@ -190,13 +207,16 @@ FSP_API NTSTATUS FspAssignSecurity(FSP_FILE_SYSTEM *FileSystem,
if (!CreatePrivateObjectSecurity(
ParentDescriptor,
(PSECURITY_DESCRIPTOR)(Request->Buffer + Request->Req.Create.SecurityDescriptor.Offset),
0 != Request->Req.Create.SecurityDescriptor.Offset ?
(PSECURITY_DESCRIPTOR)(Request->Buffer + Request->Req.Create.SecurityDescriptor.Offset) : 0,
PSecurityDescriptor,
0 != (Request->Req.Create.CreateOptions & FILE_DIRECTORY_FILE),
(HANDLE)Request->Req.Create.AccessToken,
&FspFileGenericMapping))
return FspNtStatusFromWin32(GetLastError());
DEBUGLOGSD("SDDL=%s", *PSecurityDescriptor);
return STATUS_SUCCESS;
}
@ -206,7 +226,7 @@ FSP_API VOID FspDeleteSecurityDescriptor(PSECURITY_DESCRIPTOR SecurityDescriptor
if ((NTSTATUS (*)())FspAccessCheckEx == CreateFunc)
MemFree(SecurityDescriptor);
else if ((NTSTATUS (*)())FspAssignSecurity == CreateFunc)
DestroyPrivateObjectSecurity(SecurityDescriptor);
DestroyPrivateObjectSecurity(&SecurityDescriptor);
}
static inline
@ -224,12 +244,7 @@ NTSTATUS FspFileSystemCreateCheck(FSP_FILE_SYSTEM *FileSystem,
if (NT_SUCCESS(Result))
{
*PGrantedAccess = (MAXIMUM_ALLOWED & Request->Req.Create.DesiredAccess) ?
FILE_ALL_ACCESS : Request->Req.Create.DesiredAccess;
}
else
{
if (STATUS_OBJECT_NAME_NOT_FOUND == Result)
Result = STATUS_OBJECT_PATH_NOT_FOUND;
FspFileGenericMapping.GenericAll : Request->Req.Create.DesiredAccess;
}
return Result;
@ -287,7 +302,7 @@ static NTSTATUS FspFileSystemOpCreate_FileCreate(FSP_FILE_SYSTEM *FileSystem,
(PWSTR)Request->Buffer, Request->Req.Create.CaseSensitive, Request->Req.Create.CreateOptions,
Request->Req.Create.FileAttributes, ObjectDescriptor, Request->Req.Create.AllocationSize,
&NodeInfo);
FspDeleteSecurityDescriptor(ParentDescriptor, FspAssignSecurity);
FspDeleteSecurityDescriptor(ObjectDescriptor, FspAssignSecurity);
if (!NT_SUCCESS(Result))
return FspFileSystemSendResponseWithStatus(FileSystem, Request, Result);
@ -361,7 +376,7 @@ static NTSTATUS FspFileSystemOpCreate_FileOpenIf(FSP_FILE_SYSTEM *FileSystem,
(PWSTR)Request->Buffer, Request->Req.Create.CaseSensitive, Request->Req.Create.CreateOptions,
Request->Req.Create.FileAttributes, ObjectDescriptor, Request->Req.Create.AllocationSize,
&NodeInfo);
FspDeleteSecurityDescriptor(ParentDescriptor, FspAssignSecurity);
FspDeleteSecurityDescriptor(ObjectDescriptor, FspAssignSecurity);
if (!NT_SUCCESS(Result))
return FspFileSystemSendResponseWithStatus(FileSystem, Request, Result);
}
@ -437,7 +452,7 @@ static NTSTATUS FspFileSystemOpCreate_FileOverwriteIf(FSP_FILE_SYSTEM *FileSyste
(PWSTR)Request->Buffer, Request->Req.Create.CaseSensitive, Request->Req.Create.CreateOptions,
Request->Req.Create.FileAttributes, ObjectDescriptor, Request->Req.Create.AllocationSize,
&NodeInfo);
FspDeleteSecurityDescriptor(ParentDescriptor, FspAssignSecurity);
FspDeleteSecurityDescriptor(ObjectDescriptor, FspAssignSecurity);
if (!NT_SUCCESS(Result))
return FspFileSystemSendResponseWithStatus(FileSystem, Request, Result);
}