private static void CloseThreadHandle(Microsoft.Win32.SafeHandles.SafeThreadHandle handle) { if (handle != null) { handle.Close(); } }
private static unsafe int ExecWaitWithCaptureUnimpersonated(SafeUserTokenHandle userToken, string cmd, string currentDir, TempFileCollection tempFiles, ref string outputName, ref string errorName, string trueCmdLine) { IntSecurity.UnmanagedCode.Demand(); FileStream output; FileStream error; int retValue = 0; if (outputName == null || outputName.Length == 0) outputName = tempFiles.AddExtension("out"); if (errorName == null || errorName.Length == 0) errorName = tempFiles.AddExtension("err"); // Create the files output = CreateInheritedFile(outputName); error = CreateInheritedFile(errorName); bool success = false; SafeNativeMethods.PROCESS_INFORMATION pi = new SafeNativeMethods.PROCESS_INFORMATION(); SafeProcessHandle procSH = new SafeProcessHandle(); SafeThreadHandle threadSH = new SafeThreadHandle(); SafeUserTokenHandle primaryToken = null; try { // Output the command line... StreamWriter sw = new StreamWriter(output, Encoding.UTF8); sw.Write(currentDir); sw.Write("> "); // 'true' command line is used in case the command line points to // a response file sw.WriteLine(trueCmdLine != null ? trueCmdLine : cmd); sw.WriteLine(); sw.WriteLine(); sw.Flush(); NativeMethods.STARTUPINFO si = new NativeMethods.STARTUPINFO(); si.cb = Marshal.SizeOf(si); #if FEATURE_PAL si.dwFlags = NativeMethods.STARTF_USESTDHANDLES; #else //!FEATURE_PAL si.dwFlags = NativeMethods.STARTF_USESTDHANDLES | NativeMethods.STARTF_USESHOWWINDOW; si.wShowWindow = NativeMethods.SW_HIDE; #endif //!FEATURE_PAL si.hStdOutput = output.SafeFileHandle; si.hStdError = error.SafeFileHandle; si.hStdInput = new SafeFileHandle(UnsafeNativeMethods.GetStdHandle(NativeMethods.STD_INPUT_HANDLE), false); // // Prepare the environment // #if PLATFORM_UNIX StringDictionary environment = new CaseSensitiveStringDictionary(); #else StringDictionary environment = new StringDictionary (); #endif // PLATFORM_UNIX // Add the current environment foreach ( DictionaryEntry entry in Environment.GetEnvironmentVariables () ) environment[(string) entry.Key] = (string) entry.Value; // Add the flag to indicate restricted security in the process environment["_ClrRestrictSecAttributes"] = "1"; #if DEBUG environment["OANOCACHE"] = "1"; #endif // set up the environment block parameter byte[] environmentBytes = EnvironmentBlock.ToByteArray(environment, false); fixed (byte* environmentBytesPtr = environmentBytes) { IntPtr environmentPtr = new IntPtr((void*)environmentBytesPtr); if (userToken == null || userToken.IsInvalid) { RuntimeHelpers.PrepareConstrainedRegions(); try {} finally { success = NativeMethods.CreateProcess( null, // String lpApplicationName, new StringBuilder(cmd), // String lpCommandLine, null, // SECURITY_ATTRIBUTES lpProcessAttributes, null, // SECURITY_ATTRIBUTES lpThreadAttributes, true, // bool bInheritHandles, 0, // int dwCreationFlags, environmentPtr, // IntPtr lpEnvironment, currentDir, // String lpCurrentDirectory, si, // STARTUPINFO lpStartupInfo, pi); // PROCESS_INFORMATION lpProcessInformation); if ( pi.hProcess!= (IntPtr)0 && pi.hProcess!= (IntPtr)NativeMethods.INVALID_HANDLE_VALUE) procSH.InitialSetHandle(pi.hProcess); if ( pi.hThread != (IntPtr)0 && pi.hThread != (IntPtr)NativeMethods.INVALID_HANDLE_VALUE) threadSH.InitialSetHandle(pi.hThread); } } else { #if FEATURE_PAL throw new NotSupportedException(); #else success = SafeUserTokenHandle.DuplicateTokenEx( userToken, NativeMethods.TOKEN_ALL_ACCESS, null, NativeMethods.IMPERSONATION_LEVEL_SecurityImpersonation, NativeMethods.TOKEN_TYPE_TokenPrimary, out primaryToken ); if (success) { RuntimeHelpers.PrepareConstrainedRegions(); try {} finally { success = NativeMethods.CreateProcessAsUser( primaryToken, // int token, null, // String lpApplicationName, cmd, // String lpCommandLine, null, // SECURITY_ATTRIBUTES lpProcessAttributes, null, // SECURITY_ATTRIBUTES lpThreadAttributes, true, // bool bInheritHandles, 0, // int dwCreationFlags, new HandleRef(null, environmentPtr), // IntPtr lpEnvironment, currentDir, // String lpCurrentDirectory, si, // STARTUPINFO lpStartupInfo, pi); // PROCESS_INFORMATION lpProcessInformation); if ( pi.hProcess!= (IntPtr)0 && pi.hProcess!= (IntPtr)NativeMethods.INVALID_HANDLE_VALUE) procSH.InitialSetHandle(pi.hProcess); if ( pi.hThread != (IntPtr)0 && pi.hThread != (IntPtr)NativeMethods.INVALID_HANDLE_VALUE) threadSH.InitialSetHandle(pi.hThread); } } #endif // !FEATURE_PAL } } } finally { // Close the file handles if (!success && (primaryToken != null && !primaryToken.IsInvalid)) { primaryToken.Close(); primaryToken = null; } output.Close(); error.Close(); } if (success) { try { bool signaled; ProcessWaitHandle pwh = null; try { pwh = new ProcessWaitHandle(procSH); signaled = pwh.WaitOne(ProcessTimeOut, false); } finally { if (pwh != null) pwh.Close(); } // Check for timeout if (!signaled) { throw new ExternalException(SR.GetString(SR.ExecTimeout, cmd), NativeMethods.WAIT_TIMEOUT); } // Check the process's exit code int status = NativeMethods.STILL_ACTIVE; if (!NativeMethods.GetExitCodeProcess(procSH, out status)) { throw new ExternalException(SR.GetString(SR.ExecCantGetRetCode, cmd), Marshal.GetLastWin32Error()); } retValue = status; } finally { procSH.Close(); threadSH.Close(); if (primaryToken != null && !primaryToken.IsInvalid) primaryToken.Close(); } } else { int err = Marshal.GetLastWin32Error(); if (err == NativeMethods.ERROR_NOT_ENOUGH_MEMORY) throw new OutOfMemoryException(); Win32Exception win32Exception = new Win32Exception(err); ExternalException ex = new ExternalException(SR.GetString(SR.ExecCantExec, cmd), win32Exception); throw ex; } return retValue; }
// // METHODS // /// <devdoc> /// Helper to close a thread handle. /// </devdoc> /// <internalonly/> private static void CloseThreadHandle(SafeThreadHandle handle) { if (handle != null) { handle.Close(); } }
private static unsafe int ExecWaitWithCaptureUnimpersonated(SafeUserTokenHandle userToken, string cmd, string currentDir, TempFileCollection tempFiles, ref string outputName, ref string errorName, string trueCmdLine) { IntSecurity.UnmanagedCode.Demand(); if ((outputName == null) || (outputName.Length == 0)) { outputName = tempFiles.AddExtension("out"); } if ((errorName == null) || (errorName.Length == 0)) { errorName = tempFiles.AddExtension("err"); } FileStream stream = CreateInheritedFile(outputName); FileStream stream2 = CreateInheritedFile(errorName); bool flag = false; Microsoft.Win32.SafeNativeMethods.PROCESS_INFORMATION lpProcessInformation = new Microsoft.Win32.SafeNativeMethods.PROCESS_INFORMATION(); Microsoft.Win32.SafeHandles.SafeProcessHandle processHandle = new Microsoft.Win32.SafeHandles.SafeProcessHandle(); Microsoft.Win32.SafeHandles.SafeThreadHandle handle2 = new Microsoft.Win32.SafeHandles.SafeThreadHandle(); SafeUserTokenHandle hNewToken = null; try { Microsoft.Win32.NativeMethods.STARTUPINFO startupinfo; StreamWriter writer = new StreamWriter(stream, Encoding.UTF8); writer.Write(currentDir); writer.Write("> "); writer.WriteLine((trueCmdLine != null) ? trueCmdLine : cmd); writer.WriteLine(); writer.WriteLine(); writer.Flush(); startupinfo = new Microsoft.Win32.NativeMethods.STARTUPINFO { cb = Marshal.SizeOf(startupinfo), dwFlags = 0x101, wShowWindow = 0, hStdOutput = stream.SafeFileHandle, hStdError = stream2.SafeFileHandle, hStdInput = new SafeFileHandle(Microsoft.Win32.UnsafeNativeMethods.GetStdHandle(-10), false) }; StringDictionary sd = new StringDictionary(); foreach (DictionaryEntry entry in Environment.GetEnvironmentVariables()) { sd[(string)entry.Key] = (string)entry.Value; } sd["_ClrRestrictSecAttributes"] = "1"; byte[] buffer = EnvironmentBlock.ToByteArray(sd, false); try { fixed(byte *numRef = buffer) { IntPtr lpEnvironment = new IntPtr((void *)numRef); if ((userToken == null) || userToken.IsInvalid) { RuntimeHelpers.PrepareConstrainedRegions(); try { goto Label_0325; } finally { flag = Microsoft.Win32.NativeMethods.CreateProcess(null, new StringBuilder(cmd), null, null, true, 0, lpEnvironment, currentDir, startupinfo, lpProcessInformation); if ((lpProcessInformation.hProcess != IntPtr.Zero) && (lpProcessInformation.hProcess != Microsoft.Win32.NativeMethods.INVALID_HANDLE_VALUE)) { processHandle.InitialSetHandle(lpProcessInformation.hProcess); } if ((lpProcessInformation.hThread != IntPtr.Zero) && (lpProcessInformation.hThread != Microsoft.Win32.NativeMethods.INVALID_HANDLE_VALUE)) { handle2.InitialSetHandle(lpProcessInformation.hThread); } } } flag = SafeUserTokenHandle.DuplicateTokenEx(userToken, 0xf01ff, null, 2, 1, out hNewToken); if (flag) { RuntimeHelpers.PrepareConstrainedRegions(); try { } finally { flag = Microsoft.Win32.NativeMethods.CreateProcessAsUser(hNewToken, null, cmd, null, null, true, 0, new HandleRef(null, lpEnvironment), currentDir, startupinfo, lpProcessInformation); if ((lpProcessInformation.hProcess != IntPtr.Zero) && (lpProcessInformation.hProcess != Microsoft.Win32.NativeMethods.INVALID_HANDLE_VALUE)) { processHandle.InitialSetHandle(lpProcessInformation.hProcess); } if ((lpProcessInformation.hThread != IntPtr.Zero) && (lpProcessInformation.hThread != Microsoft.Win32.NativeMethods.INVALID_HANDLE_VALUE)) { handle2.InitialSetHandle(lpProcessInformation.hThread); } } } } } finally { numRef = null; } } finally { if ((!flag && (hNewToken != null)) && !hNewToken.IsInvalid) { hNewToken.Close(); hNewToken = null; } stream.Close(); stream2.Close(); } Label_0325: if (flag) { try { bool flag2; ProcessWaitHandle handle4 = null; try { handle4 = new ProcessWaitHandle(processHandle); flag2 = handle4.WaitOne(0x927c0, false); } finally { if (handle4 != null) { handle4.Close(); } } if (!flag2) { throw new ExternalException(SR.GetString("ExecTimeout", new object[] { cmd }), 0x102); } int exitCode = 0x103; if (!Microsoft.Win32.NativeMethods.GetExitCodeProcess(processHandle, out exitCode)) { throw new ExternalException(SR.GetString("ExecCantGetRetCode", new object[] { cmd }), Marshal.GetLastWin32Error()); } return(exitCode); } finally { processHandle.Close(); handle2.Close(); if ((hNewToken != null) && !hNewToken.IsInvalid) { hNewToken.Close(); } } } int error = Marshal.GetLastWin32Error(); if (error == 8) { throw new OutOfMemoryException(); } Win32Exception inner = new Win32Exception(error); ExternalException exception2 = new ExternalException(SR.GetString("ExecCantExec", new object[] { cmd }), inner); throw exception2; }
private bool StartWithCreateProcess(ProcessStartInfo startInfo) { if ((startInfo.StandardOutputEncoding != null) && !startInfo.RedirectStandardOutput) { throw new InvalidOperationException(SR.GetString("StandardOutputEncodingNotAllowed")); } if ((startInfo.StandardErrorEncoding != null) && !startInfo.RedirectStandardError) { throw new InvalidOperationException(SR.GetString("StandardErrorEncodingNotAllowed")); } if (this.disposed) { throw new ObjectDisposedException(base.GetType().Name); } StringBuilder cmdLine = BuildCommandLine(startInfo.FileName, startInfo.Arguments); Microsoft.Win32.NativeMethods.STARTUPINFO lpStartupInfo = new Microsoft.Win32.NativeMethods.STARTUPINFO(); Microsoft.Win32.SafeNativeMethods.PROCESS_INFORMATION lpProcessInformation = new Microsoft.Win32.SafeNativeMethods.PROCESS_INFORMATION(); Microsoft.Win32.SafeHandles.SafeProcessHandle processHandle = new Microsoft.Win32.SafeHandles.SafeProcessHandle(); Microsoft.Win32.SafeHandles.SafeThreadHandle handle2 = new Microsoft.Win32.SafeHandles.SafeThreadHandle(); int error = 0; SafeFileHandle parentHandle = null; SafeFileHandle handle4 = null; SafeFileHandle handle5 = null; GCHandle handle6 = new GCHandle(); lock (s_CreateProcessLock) { try { bool flag; if ((startInfo.RedirectStandardInput || startInfo.RedirectStandardOutput) || startInfo.RedirectStandardError) { if (startInfo.RedirectStandardInput) { this.CreatePipe(out parentHandle, out lpStartupInfo.hStdInput, true); } else { lpStartupInfo.hStdInput = new SafeFileHandle(Microsoft.Win32.NativeMethods.GetStdHandle(-10), false); } if (startInfo.RedirectStandardOutput) { this.CreatePipe(out handle4, out lpStartupInfo.hStdOutput, false); } else { lpStartupInfo.hStdOutput = new SafeFileHandle(Microsoft.Win32.NativeMethods.GetStdHandle(-11), false); } if (startInfo.RedirectStandardError) { this.CreatePipe(out handle5, out lpStartupInfo.hStdError, false); } else { lpStartupInfo.hStdError = new SafeFileHandle(Microsoft.Win32.NativeMethods.GetStdHandle(-12), false); } lpStartupInfo.dwFlags = 0x100; } int creationFlags = 0; if (startInfo.CreateNoWindow) { creationFlags |= 0x8000000; } IntPtr zero = IntPtr.Zero; if (startInfo.environmentVariables != null) { bool unicode = false; if (ProcessManager.IsNt) { creationFlags |= 0x400; unicode = true; } handle6 = GCHandle.Alloc(EnvironmentBlock.ToByteArray(startInfo.environmentVariables, unicode), GCHandleType.Pinned); zero = handle6.AddrOfPinnedObject(); } string workingDirectory = startInfo.WorkingDirectory; if (workingDirectory == string.Empty) { workingDirectory = Environment.CurrentDirectory; } if (startInfo.UserName.Length != 0) { Microsoft.Win32.NativeMethods.LogonFlags logonFlags = 0; if (startInfo.LoadUserProfile) { logonFlags = Microsoft.Win32.NativeMethods.LogonFlags.LOGON_WITH_PROFILE; } IntPtr password = IntPtr.Zero; try { if (startInfo.Password == null) { password = Marshal.StringToCoTaskMemUni(string.Empty); } else { password = Marshal.SecureStringToCoTaskMemUnicode(startInfo.Password); } RuntimeHelpers.PrepareConstrainedRegions(); try { } finally { flag = Microsoft.Win32.NativeMethods.CreateProcessWithLogonW(startInfo.UserName, startInfo.Domain, password, logonFlags, null, cmdLine, creationFlags, zero, workingDirectory, lpStartupInfo, lpProcessInformation); if (!flag) { error = Marshal.GetLastWin32Error(); } if ((lpProcessInformation.hProcess != IntPtr.Zero) && (lpProcessInformation.hProcess != Microsoft.Win32.NativeMethods.INVALID_HANDLE_VALUE)) { processHandle.InitialSetHandle(lpProcessInformation.hProcess); } if ((lpProcessInformation.hThread != IntPtr.Zero) && (lpProcessInformation.hThread != Microsoft.Win32.NativeMethods.INVALID_HANDLE_VALUE)) { handle2.InitialSetHandle(lpProcessInformation.hThread); } } if (!flag) { if ((error != 0xc1) && (error != 0xd8)) { throw new Win32Exception(error); } throw new Win32Exception(error, SR.GetString("InvalidApplication")); } goto Label_03E0; } finally { if (password != IntPtr.Zero) { Marshal.ZeroFreeCoTaskMemUnicode(password); } } } RuntimeHelpers.PrepareConstrainedRegions(); try { } finally { flag = Microsoft.Win32.NativeMethods.CreateProcess(null, cmdLine, null, null, true, creationFlags, zero, workingDirectory, lpStartupInfo, lpProcessInformation); if (!flag) { error = Marshal.GetLastWin32Error(); } if ((lpProcessInformation.hProcess != IntPtr.Zero) && (lpProcessInformation.hProcess != Microsoft.Win32.NativeMethods.INVALID_HANDLE_VALUE)) { processHandle.InitialSetHandle(lpProcessInformation.hProcess); } if ((lpProcessInformation.hThread != IntPtr.Zero) && (lpProcessInformation.hThread != Microsoft.Win32.NativeMethods.INVALID_HANDLE_VALUE)) { handle2.InitialSetHandle(lpProcessInformation.hThread); } } if (!flag) { if ((error != 0xc1) && (error != 0xd8)) { throw new Win32Exception(error); } throw new Win32Exception(error, SR.GetString("InvalidApplication")); } } finally { if (handle6.IsAllocated) { handle6.Free(); } lpStartupInfo.Dispose(); } } Label_03E0: if (startInfo.RedirectStandardInput) { this.standardInput = new StreamWriter(new FileStream(parentHandle, FileAccess.Write, 0x1000, false), Console.InputEncoding, 0x1000); this.standardInput.AutoFlush = true; } if (startInfo.RedirectStandardOutput) { Encoding encoding = (startInfo.StandardOutputEncoding != null) ? startInfo.StandardOutputEncoding : Console.OutputEncoding; this.standardOutput = new StreamReader(new FileStream(handle4, FileAccess.Read, 0x1000, false), encoding, true, 0x1000); } if (startInfo.RedirectStandardError) { Encoding encoding2 = (startInfo.StandardErrorEncoding != null) ? startInfo.StandardErrorEncoding : Console.OutputEncoding; this.standardError = new StreamReader(new FileStream(handle5, FileAccess.Read, 0x1000, false), encoding2, true, 0x1000); } bool flag3 = false; if (!processHandle.IsInvalid) { this.SetProcessHandle(processHandle); this.SetProcessId(lpProcessInformation.dwProcessId); handle2.Close(); flag3 = true; } return flag3; }
private static unsafe int ExecWaitWithCaptureUnimpersonated(SafeUserTokenHandle userToken, string cmd, string currentDir, TempFileCollection tempFiles, ref string outputName, ref string errorName, string trueCmdLine) { IntSecurity.UnmanagedCode.Demand(); if ((outputName == null) || (outputName.Length == 0)) { outputName = tempFiles.AddExtension("out"); } if ((errorName == null) || (errorName.Length == 0)) { errorName = tempFiles.AddExtension("err"); } FileStream stream = CreateInheritedFile(outputName); FileStream stream2 = CreateInheritedFile(errorName); bool flag = false; Microsoft.Win32.SafeNativeMethods.PROCESS_INFORMATION lpProcessInformation = new Microsoft.Win32.SafeNativeMethods.PROCESS_INFORMATION(); Microsoft.Win32.SafeHandles.SafeProcessHandle processHandle = new Microsoft.Win32.SafeHandles.SafeProcessHandle(); Microsoft.Win32.SafeHandles.SafeThreadHandle handle2 = new Microsoft.Win32.SafeHandles.SafeThreadHandle(); SafeUserTokenHandle hNewToken = null; try { Microsoft.Win32.NativeMethods.STARTUPINFO startupinfo; StreamWriter writer = new StreamWriter(stream, Encoding.UTF8); writer.Write(currentDir); writer.Write("> "); writer.WriteLine((trueCmdLine != null) ? trueCmdLine : cmd); writer.WriteLine(); writer.WriteLine(); writer.Flush(); startupinfo = new Microsoft.Win32.NativeMethods.STARTUPINFO { cb = Marshal.SizeOf(startupinfo), dwFlags = 0x101, wShowWindow = 0, hStdOutput = stream.SafeFileHandle, hStdError = stream2.SafeFileHandle, hStdInput = new SafeFileHandle(Microsoft.Win32.UnsafeNativeMethods.GetStdHandle(-10), false) }; StringDictionary sd = new StringDictionary(); foreach (DictionaryEntry entry in Environment.GetEnvironmentVariables()) { sd[(string) entry.Key] = (string) entry.Value; } sd["_ClrRestrictSecAttributes"] = "1"; byte[] buffer = EnvironmentBlock.ToByteArray(sd, false); try { fixed (byte* numRef = buffer) { IntPtr lpEnvironment = new IntPtr((void*) numRef); if ((userToken == null) || userToken.IsInvalid) { RuntimeHelpers.PrepareConstrainedRegions(); try { goto Label_0325; } finally { flag = Microsoft.Win32.NativeMethods.CreateProcess(null, new StringBuilder(cmd), null, null, true, 0, lpEnvironment, currentDir, startupinfo, lpProcessInformation); if ((lpProcessInformation.hProcess != IntPtr.Zero) && (lpProcessInformation.hProcess != Microsoft.Win32.NativeMethods.INVALID_HANDLE_VALUE)) { processHandle.InitialSetHandle(lpProcessInformation.hProcess); } if ((lpProcessInformation.hThread != IntPtr.Zero) && (lpProcessInformation.hThread != Microsoft.Win32.NativeMethods.INVALID_HANDLE_VALUE)) { handle2.InitialSetHandle(lpProcessInformation.hThread); } } } flag = SafeUserTokenHandle.DuplicateTokenEx(userToken, 0xf01ff, null, 2, 1, out hNewToken); if (flag) { RuntimeHelpers.PrepareConstrainedRegions(); try { } finally { flag = Microsoft.Win32.NativeMethods.CreateProcessAsUser(hNewToken, null, cmd, null, null, true, 0, new HandleRef(null, lpEnvironment), currentDir, startupinfo, lpProcessInformation); if ((lpProcessInformation.hProcess != IntPtr.Zero) && (lpProcessInformation.hProcess != Microsoft.Win32.NativeMethods.INVALID_HANDLE_VALUE)) { processHandle.InitialSetHandle(lpProcessInformation.hProcess); } if ((lpProcessInformation.hThread != IntPtr.Zero) && (lpProcessInformation.hThread != Microsoft.Win32.NativeMethods.INVALID_HANDLE_VALUE)) { handle2.InitialSetHandle(lpProcessInformation.hThread); } } } } } finally { numRef = null; } } finally { if ((!flag && (hNewToken != null)) && !hNewToken.IsInvalid) { hNewToken.Close(); hNewToken = null; } stream.Close(); stream2.Close(); } Label_0325: if (flag) { try { bool flag2; ProcessWaitHandle handle4 = null; try { handle4 = new ProcessWaitHandle(processHandle); flag2 = handle4.WaitOne(0x927c0, false); } finally { if (handle4 != null) { handle4.Close(); } } if (!flag2) { throw new ExternalException(SR.GetString("ExecTimeout", new object[] { cmd }), 0x102); } int exitCode = 0x103; if (!Microsoft.Win32.NativeMethods.GetExitCodeProcess(processHandle, out exitCode)) { throw new ExternalException(SR.GetString("ExecCantGetRetCode", new object[] { cmd }), Marshal.GetLastWin32Error()); } return exitCode; } finally { processHandle.Close(); handle2.Close(); if ((hNewToken != null) && !hNewToken.IsInvalid) { hNewToken.Close(); } } } int error = Marshal.GetLastWin32Error(); if (error == 8) { throw new OutOfMemoryException(); } Win32Exception inner = new Win32Exception(error); ExternalException exception2 = new ExternalException(SR.GetString("ExecCantExec", new object[] { cmd }), inner); throw exception2; }