ProjectExplorer/Debugger: Add a 'Run as root' option for Unix hosts

For local run and GDB debug, with or without terminal.

Task-number: QTCREATORBUG-2831
Task-number: QTCREATORBUG-25330
Change-Id: I9b5d2156bcffea4f358474ecdbcad580a4419917
Reviewed-by: Christian Stenger <christian.stenger@qt.io>
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>

src/plugins/debugger/debuggerengine.h

@@ -169,6 +169,7 @@ public:
     bool breakOnMain = false;
     bool multiProcess = false; // Whether to set detach-on-fork off.
     bool useTerminal = false;
+    bool runAsRoot = false;
 
     ProjectExplorer::Runnable debugger;
     QString overrideStartScript; // Used in attach to core and remote debugging

src/plugins/debugger/debuggerruncontrol.cpp

@@ -395,6 +395,7 @@ void DebuggerRunTool::setUseTerminal(bool on)
 
     if (on && !d->terminalRunner && !useCdbConsole) {
         d->terminalRunner = new TerminalRunner(runControl(), m_runParameters.inferior);
+        d->terminalRunner->setRunAsRoot(m_runParameters.runAsRoot);
         addStartDependency(d->terminalRunner);
     }
     if (!on && d->terminalRunner) {
@@ -402,6 +403,13 @@ void DebuggerRunTool::setUseTerminal(bool on)
     }
 }
 
+void DebuggerRunTool::setRunAsRoot(bool on)
+{
+    m_runParameters.runAsRoot = on;
+    if (d->terminalRunner)
+        d->terminalRunner->setRunAsRoot(on);
+}
+
 void DebuggerRunTool::setCommandsAfterConnect(const QString &commands)
 {
     m_runParameters.commandsAfterConnect = commands;
@@ -948,6 +956,8 @@ DebuggerRunTool::DebuggerRunTool(RunControl *runControl, AllowTerminal allowTerm
         m_runParameters.symbolFile = symbolsAspect->filePath();
     if (auto terminalAspect = runControl->aspect<TerminalAspect>())
         m_runParameters.useTerminal = terminalAspect->useTerminal();
+    if (auto runAsRootAspect = runControl->aspect<RunAsRootAspect>())
+        m_runParameters.runAsRoot = runAsRootAspect->value();
 
     Kit *kit = runControl->kit();
     QTC_ASSERT(kit, return);

src/plugins/debugger/debuggerruncontrol.h

@@ -108,6 +108,7 @@ public:
     void setUseCtrlCStub(bool on);
     void setBreakOnMain(bool on);
     void setUseTerminal(bool on);
+    void setRunAsRoot(bool on);
 
     void setCommandsAfterConnect(const QString &commands);
     void setCommandsForReset(const QString &commands);

src/plugins/debugger/gdb/gdbengine.cpp

@@ -3853,11 +3853,20 @@ void GdbEngine::setupEngine()
     if (!boolSetting(LoadGdbInit))
         gdbCommand.addArg("-n");
 
+    Environment gdbEnv = rp.debugger.environment;
+    if (rp.runAsRoot) {
+        CommandLine wrapped("sudo", {"-A"});
+        wrapped.addArgs(gdbCommand);
+        gdbCommand = wrapped;
+        RunControl::provideAskPassEntry(gdbEnv);
+    }
+
     showMessage("STARTING " + gdbCommand.toUserOutput());
+
     m_gdbProc.setCommand(gdbCommand);
     if (QFileInfo(rp.debugger.workingDirectory).isDir())
         m_gdbProc.setWorkingDirectory(rp.debugger.workingDirectory);
-    m_gdbProc.setEnvironment(rp.debugger.environment);
+    m_gdbProc.setEnvironment(gdbEnv);
     m_gdbProc.start();
 
     if (!m_gdbProc.waitForStarted()) {
@@ -4256,7 +4265,15 @@ void GdbEngine::interruptLocalInferior(qint64 pid)
         return;
     }
     QString errorMessage;
-    if (interruptProcess(pid, GdbEngineType, &errorMessage)) {
+    if (runParameters().runAsRoot) {
+        Environment env = Environment::systemEnvironment();
+        RunControl::provideAskPassEntry(env);
+        QtcProcess proc;
+        proc.setCommand(CommandLine{"sudo", {"-A", "kill", "-s", "SIGINT", QString::number(pid)}});
+        proc.setEnvironment(env);
+        proc.start();
+        proc.waitForFinished();
+    } else if (interruptProcess(pid, GdbEngineType, &errorMessage)) {
         showMessage("Interrupted " + QString::number(pid));
     } else {
         showMessage(errorMessage, LogError);
@@ -4622,10 +4639,13 @@ void GdbEngine::interruptInferior2()
             }
         }
 
-    } else if (isTermEngine() || isPlainEngine()) {
+    } else if (isPlainEngine()) {
 
         interruptLocalInferior(inferiorPid());
 
+    } else if (isTermEngine()) {
+
+        terminal()->interruptProcess();
     }
 }
 

src/plugins/debugger/terminal.cpp

@@ -188,8 +188,18 @@ void TerminalRunner::interruptProcess()
     m_stubProc.interruptProcess();
 }
 
+void TerminalRunner::setRunAsRoot(bool on)
+{
+    m_runAsRoot = on;
+}
+
 void TerminalRunner::start()
 {
+    if (m_runAsRoot) {
+        m_stubProc.setRunAsRoot(true);
+        RunControl::provideAskPassEntry(m_stubRunnable.environment);
+    }
+
     m_stubProc.setEnvironment(m_stubRunnable.environment);
     m_stubProc.setWorkingDirectory(m_stubRunnable.workingDirectory);
 

src/plugins/debugger/terminal.h

@@ -78,6 +78,7 @@ public:
     qint64 applicationMainThreadId() const { return m_applicationMainThreadId; }
 
     void interruptProcess();
+    void setRunAsRoot(bool on);
 
 private:
     void start() final;
@@ -90,6 +91,7 @@ private:
     ProjectExplorer::Runnable m_stubRunnable;
     qint64 m_applicationPid = 0;
     qint64 m_applicationMainThreadId = 0;
+    bool m_runAsRoot = false;
 };
 
 } // namespace Internal

src/plugins/projectexplorer/applicationlauncher.cpp

@@ -100,6 +100,7 @@ public:
     ApplicationLauncher *q;
 
     bool m_isLocal = true;
+    bool m_runAsRoot = false;
 
     // Local
     QtcProcess m_guiProcess;
@@ -179,6 +180,11 @@ void ApplicationLauncher::setUseTerminal(bool on)
     d->m_useTerminal = on;
 }
 
+void ApplicationLauncher::setRunAsRoot(bool on)
+{
+    d->m_runAsRoot = on;
+}
+
 void ApplicationLauncher::stop()
 {
     d->stop();
@@ -368,8 +374,13 @@ void ApplicationLauncherPrivate::start(const Runnable &runnable, const IDevice::
         const QString fixedPath = FileUtils::normalizePathName(runnable.workingDirectory);
         m_guiProcess.setWorkingDirectory(fixedPath);
         m_consoleProcess.setWorkingDirectory(fixedPath);
-        m_guiProcess.setEnvironment(runnable.environment);
-        m_consoleProcess.setEnvironment(runnable.environment);
+
+        Environment env = runnable.environment;
+        if (m_runAsRoot)
+            RunControl::provideAskPassEntry(env);
+
+        m_guiProcess.setEnvironment(env);
+        m_consoleProcess.setEnvironment(env);
 
         m_processRunning = true;
     #ifdef Q_OS_WIN
@@ -377,13 +388,20 @@ void ApplicationLauncherPrivate::start(const Runnable &runnable, const IDevice::
             WinDebugInterface::instance()->start(); // Try to start listener again...
     #endif
 
-        if (!m_useTerminal) {
-            m_guiProcess.setCommand(runnable.commandLine());
+        CommandLine cmdLine = runnable.commandLine();
+        if (m_runAsRoot) {
+            CommandLine wrapped("sudo", {"-A"});
+            wrapped.addArgs(cmdLine);
+            cmdLine = wrapped;
+        }
+
+        if (m_useTerminal) {
+            m_consoleProcess.setCommand(cmdLine);
+            m_consoleProcess.start();
+        } else {
+            m_guiProcess.setCommand(cmdLine);
             m_guiProcess.closeWriteChannel();
             m_guiProcess.start();
-        } else {
-            m_consoleProcess.setCommand(runnable.commandLine());
-            m_consoleProcess.start();
         }
     } else {
         QTC_ASSERT(m_state == Inactive, return);

src/plugins/projectexplorer/applicationlauncher.h

@@ -54,6 +54,7 @@ public:
 
     void setProcessChannelMode(QProcess::ProcessChannelMode mode);
     void setUseTerminal(bool on);
+    void setRunAsRoot(bool on);
     void start(const Runnable &runnable);
     void start(const Runnable &runnable, const IDevice::ConstPtr &device);
     void stop();

src/plugins/projectexplorer/desktoprunconfiguration.cpp

@@ -88,6 +88,9 @@ DesktopRunConfiguration::DesktopRunConfiguration(Target *target, Utils::Id id, K
         });
     }
 
+    if (HostOsInfo::isAnyUnixHost())
+        addAspect<RunAsRootAspect>();
+
     envAspect->addModifier([this, libAspect](Environment &env) {
         BuildTargetInfo bti = buildTargetInfo();
         if (bti.runEnvModifier)

src/plugins/projectexplorer/runconfigurationaspects.cpp

@@ -736,4 +736,19 @@ UseDyldSuffixAspect::UseDyldSuffixAspect()
              LabelPlacement::AtCheckBox);
 }
 
+/*!
+    \class ProjectExplorer::RunAsRootAspect
+    \inmodule QtCreator
+
+    \brief The RunAsRootAspect class lets a user specify whether the
+    application should run with root permissions.
+*/
+
+RunAsRootAspect::RunAsRootAspect()
+{
+    setId("RunAsRoot");
+    setSettingsKey("RunConfiguration.RunAsRoot");
+    setLabel(tr("Run as root user"), LabelPlacement::AtCheckBox);
+}
+
 } // namespace ProjectExplorer

src/plugins/projectexplorer/runconfigurationaspects.h

@@ -147,6 +147,14 @@ public:
     UseDyldSuffixAspect();
 };
 
+class PROJECTEXPLORER_EXPORT RunAsRootAspect : public Utils::BoolAspect
+{
+    Q_OBJECT
+
+public:
+    RunAsRootAspect();
+};
+
 class PROJECTEXPLORER_EXPORT ExecutableAspect : public Utils::BaseAspect
 {
     Q_OBJECT

src/plugins/projectexplorer/runcontrol.cpp

@@ -1154,6 +1154,8 @@ SimpleTargetRunner::SimpleTargetRunner(RunControl *runControl)
     setId("SimpleTargetRunner");
     if (auto terminalAspect = runControl->aspect<TerminalAspect>())
         m_useTerminal = terminalAspect->useTerminal();
+    if (auto runAsRootAspect = runControl->aspect<RunAsRootAspect>())
+        m_runAsRoot = runAsRootAspect->value();
 }
 
 void SimpleTargetRunner::start()
@@ -1169,6 +1171,7 @@ void SimpleTargetRunner::doStart(const Runnable &runnable, const IDevice::ConstP
     m_stopReported = false;
     m_launcher.disconnect(this);
     m_launcher.setUseTerminal(m_useTerminal);
+    m_launcher.setRunAsRoot(m_runAsRoot);
 
     const bool isDesktop = device.isNull() || device.dynamicCast<const DesktopDevice>();
     const QString rawDisplayName = runnable.displayName();

src/plugins/projectexplorer/runcontrol.h

@@ -302,6 +302,7 @@ private:
 
     bool m_stopReported = false;
     bool m_useTerminal = false;
+    bool m_runAsRoot = false;
 };
 
 class PROJECTEXPLORER_EXPORT OutputFormatterFactory