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From: "Yordan Karadzhov (VMware)" <y.karadz@gmail.com>
To: rostedt@goodmis.org
Cc: linux-trace-devel@vger.kernel.org, mike.auty@gmail.com,
	"Yordan Karadzhov (VMware)" <y.karadz@gmail.com>
Subject: [PATCH 2/3] kernel-shark: Don't use pkexec when running as Root
Date: Fri,  9 Aug 2019 11:06:22 +0300
Message-ID: <20190809080623.7548-3-y.karadz@gmail.com> (raw)
In-Reply-To: <20190809080623.7548-1-y.karadz@gmail.com>

If KernelShark GUI has been started as Root we do not need to use
"pkexec" when starting the Record dialog. Note that the actual place
where "pkexec" gets used is in the script "kshark-su-record".

Signed-off-by: Yordan Karadzhov (VMware) <y.karadz@gmail.com>
---
 kernel-shark/src/KsMainWindow.cpp | 47 +++++++++++++++++++++----------
 1 file changed, 32 insertions(+), 15 deletions(-)

diff --git a/kernel-shark/src/KsMainWindow.cpp b/kernel-shark/src/KsMainWindow.cpp
index 2560bf8..e9c6d54 100644
--- a/kernel-shark/src/KsMainWindow.cpp
+++ b/kernel-shark/src/KsMainWindow.cpp
@@ -883,23 +883,26 @@ void KsMainWindow::_pluginAdd()
 
 void KsMainWindow::_record()
 {
-#ifndef DO_AS_ROOT
+	bool canDoAsRoot(false);
 
-	QErrorMessage *em = new QErrorMessage(this);
-	QString message;
-
-	message = "Record is currently not supported.";
-	message += " Install \"pkexec\" and then do:<br>";
-	message += " cd build <br> sudo ./cmake_uninstall.sh <br>";
-	message += " ./cmake_clean.sh <br> cmake .. <br> make <br>";
-	message += " sudo make install";
+#ifdef DO_AS_ROOT
+	canDoAsRoot = true;
+#endif
 
-	em->showMessage(message);
-	qCritical() << "ERROR: " << message;
+	if (geteuid() && !canDoAsRoot) {
+		QErrorMessage *em = new QErrorMessage(this);
+		QString message;
 
-	return;
+		message = "Record is currently not supported.";
+		message += " Install \"pkexec\" and then do:<br>";
+		message += " cd build <br> sudo ./cmake_uninstall.sh <br>";
+		message += " ./cmake_clean.sh <br> cmake .. <br> make <br>";
+		message += " sudo make install";
 
-#endif
+		em->showMessage(message);
+		qCritical() << "ERROR: " << message;
+		return;
+	}
 
 	_capture.start();
 }
@@ -1134,9 +1137,24 @@ void KsMainWindow::loadSession(const QString &fileName)
 
 void KsMainWindow::_initCapture()
 {
+	bool canDoAsRoot(false);
+
 #ifdef DO_AS_ROOT
+	canDoAsRoot = true;
+#endif
+
+	if (geteuid() && !canDoAsRoot)
+		return;
 
-	_capture.setProgram("kshark-su-record");
+	if (geteuid()) {
+		_capture.setProgram("kshark-su-record");
+	} else {
+		QStringList argv;
+
+		_capture.setProgram("kshark-record");
+		argv << QString("-o ") + QDir::homePath();
+		_capture.setArguments(argv);
+	}
 
 	connect(&_capture,	&QProcess::started,
 		this,		&KsMainWindow::_captureStarted);
@@ -1155,7 +1173,6 @@ void KsMainWindow::_initCapture()
 	connect(&_captureLocalServer,	&QLocalServer::newConnection,
 		this,			&KsMainWindow::_readSocket);
 
-#endif
 }
 
 void KsMainWindow::_captureStarted()
-- 
2.20.1


  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
2019-08-09  8:06 ` Yordan Karadzhov (VMware) [this message]
2019-08-09 13:33   ` [PATCH 2/3] kernel-shark: Don't use pkexec " 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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