/**
Validate that nobody is trying to touch the virus scanner files.
@internalComponent
@return A value depending on whethe the virus scanner files are
being fiddled with.
@param aDriveNum The drive number of the request which called into
the test virus scanning hook.
@param aName The full pathname of the file being accessed by the
request to the file server hook.
*/
TInt CTestVirusHook::ValidateRequest(TFsPluginRequest& aRequest, TFileName& aFileName)
{
TInt driveNumber = aRequest.DriveNumber();
TInt err = GetName(&aRequest, aFileName);
if(err != KErrNone)
return(err);
if (driveNumber == EDriveC)
{
TInt r = aFileName.Find(_L("\\virusdef.txt"));
if (r != KErrNotFound)
{
//Do not allow the deletion of the virus definition file.
return KErrAccessDenied;
}
r = aFileName.Find(_L("\\system\\libs\\t_vshook.pxt"));
if (r != KErrNotFound)
{
//Do not allow the deletion of the this dll
return KErrAccessDenied;
}
r = aFileName.Find(_L("\\sys\\bin\\t_vshook.pxt"));
if (r != KErrNotFound)
{
//Do not allow the deletion of the this dll
return KErrAccessDenied;
}
}
return KErrNone;
}
/**
@internalComponent
*/
TInt CTestHexHook::DoRequestL(TFsPluginRequest& aRequest)
{
TInt err = KErrNotSupported;
TInt function = aRequest.Function();
iDrvNumber = aRequest.DriveNumber();
switch(function)
{
case EFsFileOpen:
err = HexFileOpen(aRequest);
break;
case EFsFileRead:
// Post intercept does nothing except prove that it is possible and that no deadlock occurs.
// plugin always calls FileRead() when receiving a EFsFileRead, and so the mesage gets completed
// by the plugin and has to be post intercepted by the plugin (if registered to post-intercept the request)
// and any plugins above it.
if (!(aRequest.IsPostOperation()))
err = HexFileRead(aRequest);
break;
default:
break;
}
return err;
}
/**
@internalComponent
*/
TInt CTestVirusHook::DoRequestL(TFsPluginRequest& aRequest)
{
TInt err = KErrNotSupported;
TInt function = aRequest.Function();
iDrvNumber = aRequest.DriveNumber();
switch(function)
{
case EFsFileOpen:
err = VsFileOpen(aRequest);
break;
case EFsFileSubClose:
VsFileClose(aRequest);
break;
case EFsFileRename:
case EFsRename:
case EFsReplace:
err = VsFileRename(aRequest);
break;
case EFsDelete:
err = VsFileDelete(aRequest);
break;
case EFsReadFileSection:
err = VsReadFileSection(aRequest);
break;
default:
break;
}
return err;
}