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From: Steven Rostedt <rostedt@goodmis.org>
To: "Yordan Karadzhov (VMware)" <y.karadz@gmail.com>
Cc: linux-trace-devel@vger.kernel.org, mike.auty@gmail.com
Subject: Re: [PATCH 1/3] kernel-shark: Show warning message when running as Root
Date: Fri, 9 Aug 2019 09:19:14 -0400
Message-ID: <20190809091914.75f553b2@gandalf.local.home> (raw)
In-Reply-To: <20190809080623.7548-2-y.karadz@gmail.com>

On Fri,  9 Aug 2019 11:06:21 +0300
"Yordan Karadzhov (VMware)" <y.karadz@gmail.com> wrote:

> Running the KernelShark GUI with Root privileges is not recommended due
> to security reasons. The user will be allowed to continue on its own risk.
> 
> Suggested-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
> Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=204475
> Signed-off-by: Yordan Karadzhov (VMware) <y.karadz@gmail.com>
> ---
>  kernel-shark/src/KsMainWindow.cpp | 28 ++++++++++++++++++++++++++++
>  kernel-shark/src/KsMainWindow.hpp |  2 ++
>  2 files changed, 30 insertions(+)
> 
> diff --git a/kernel-shark/src/KsMainWindow.cpp b/kernel-shark/src/KsMainWindow.cpp
> index 6439265..2560bf8 100644
> --- a/kernel-shark/src/KsMainWindow.cpp
> +++ b/kernel-shark/src/KsMainWindow.cpp
> @@ -76,6 +76,9 @@ KsMainWindow::KsMainWindow(QWidget *parent)
>  	_createMenus();
>  	_initCapture();
>  
> +	if (geteuid() == 0)
> +		_rootWarning();
> +
>  	_splitter.addWidget(&_graph);
>  	_splitter.addWidget(&_view);
>  	setCentralWidget(&_splitter);
> @@ -1271,3 +1274,28 @@ void KsMainWindow::_deselectB()
>  	_mState.updateLabels();
>  	_graph.glPtr()->model()->update();
>  }
> +
> +void KsMainWindow::_rootWarning()
> +{
> +	QString cbFlag("noRootWorn");

Mike already pointed this out (Thanks Mike!)

> +
> +	if (_settings.value(cbFlag).toBool())
> +		return;
> +
> +	QMessageBox warn;
> +	warn.setText("KernelShark will have Root privileges.");
> +	warn.setInformativeText("Continue on your one risk.");

Probably better to say:

  "KernelShark is running with Root privileges."
  "Continue at your own risk."

-- Steve

> +	warn.setIcon(QMessageBox::Warning);
> +	warn.setStandardButtons(QMessageBox::Close);
> +
> +	QCheckBox cb("Don't show this message again.");
> +
> +	auto lamCbChec = [&] (int state) {
> +		if (state)
> +			_settings.setValue(cbFlag, true);
> +	};
> +
> +	connect(&cb, &QCheckBox::stateChanged, lamCbChec);
> +	warn.setCheckBox(&cb);
> +	warn.exec();
> +}
> diff --git a/kernel-shark/src/KsMainWindow.hpp b/kernel-shark/src/KsMainWindow.hpp
> index 62e66a0..4a7b8ab 100644
> --- a/kernel-shark/src/KsMainWindow.hpp
> +++ b/kernel-shark/src/KsMainWindow.hpp
> @@ -238,6 +238,8 @@ private:
>  
>  	void _deselectB();
>  
> +	void _rootWarning();
> +
>  	void _updateFilterMenu();
>  
>  	void _filterSyncCBoxUpdate(kshark_context *kshark_ctx);


  parent reply index

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-09  8:06 [PATCH 0/3] Handle the case when KernelShark is started " Yordan Karadzhov (VMware)
2019-08-09  8:06 ` [PATCH 1/3] kernel-shark: Show warning message when running " Yordan Karadzhov (VMware)
     [not found]   ` <430194dd-0e96-bb3a-a2de-e4379dd540a1@gmail.com>
2019-08-09 12:13     ` Yordan Karadzhov (VMware)
2019-08-09 13:19   ` Steven Rostedt [this message]
2019-08-09  8:06 ` [PATCH 2/3] kernel-shark: Don't use pkexec " Yordan Karadzhov (VMware)
2019-08-09 13:33   ` Steven Rostedt
2019-08-09  8:06 ` [PATCH 3/3] kernel-shark: Use standart error message in KsMainWindow::_record() Yordan Karadzhov (VMware)
2019-08-09 13:35   ` Steven Rostedt

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