Remove sandbox on Windows.

sandbox/win/tools/launcher/launcher.cc

-// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "base/win/scoped_handle.h"
-#include "base/win/scoped_process_information.h"
-#include "base/win/windows_version.h"
-#include "sandbox/win/src/restricted_token_utils.h"
-
-// launcher.exe is an application used to launch another application with a
-// restricted token. This is to be used for testing only.
-// The parameters are the level of security of the primary token, the
-// impersonation token and the job object along with the command line to
-// execute.
-// See the usage (launcher.exe without parameters) for the correct format.
-
-namespace {
-
-// Starts the process described by the input parameter command_line in a job
-// with a restricted token. Also set the main thread of this newly created
-// process to impersonate a user with more rights so it can initialize
-// correctly.
-//
-// Parameters: primary_level is the security level of the primary token.
-// impersonation_level is the security level of the impersonation token used
-// to initialize the process. job_level is the security level of the job
-// object used to encapsulate the process.
-//
-// The output parameter job_handle is the handle to the job object. Closing this
-// handle will kill the process started.
-//
-// Note: The process started with this function has to call RevertToSelf() as
-// soon as possible to stop using the impersonation token and start being
-// secure.
-//
-// Note: The Unicode version of this function will fail if the command_line
-// parameter is a const string.
-DWORD StartRestrictedProcessInJob(wchar_t* command_line,
-                                  TokenLevel primary_level,
-                                  TokenLevel impersonation_level,
-                                  JobLevel job_level,
-                                  base::win::ScopedHandle* job_handle) {
-  Job job;
-  DWORD err_code = job.Init(job_level, NULL, 0, 0);
-  if (ERROR_SUCCESS != err_code)
-    return err_code;
-
-  if (JOB_UNPROTECTED != job_level) {
-    // Share the Desktop handle to be able to use MessageBox() in the sandboxed
-    // application.
-    err_code = job.UserHandleGrantAccess(GetDesktopWindow());
-    if (ERROR_SUCCESS != err_code)
-      return err_code;
-  }
-
-  // Create the primary (restricted) token for the process
-  base::win::ScopedHandle primary_token;
-  err_code = sandbox::CreateRestrictedToken(primary_level, INTEGRITY_LEVEL_LAST,
-                                            PRIMARY, &primary_token);
-  if (ERROR_SUCCESS != err_code)
-    return err_code;
-
-
-  // Create the impersonation token (restricted) to be able to start the
-  // process.
-  base::win::ScopedHandle impersonation_token;
-  err_code = sandbox::CreateRestrictedToken(impersonation_level,
-                                            INTEGRITY_LEVEL_LAST,
-                                            IMPERSONATION,
-                                            &impersonation_token);
-  if (ERROR_SUCCESS != err_code)
-    return err_code;
-
-  // Start the process
-  STARTUPINFO startup_info = {0};
-  PROCESS_INFORMATION temp_process_info = {};
-  DWORD flags = CREATE_SUSPENDED;
-
-  if (base::win::GetVersion() < base::win::VERSION_WIN8) {
-    // Windows 8 implements nested jobs, but for older systems we need to
-    // break out of any job we're in to enforce our restrictions.
-    flags |= CREATE_BREAKAWAY_FROM_JOB;
-  }
-
-  if (!::CreateProcessAsUser(primary_token.Get(),
-                             NULL,   // No application name.
-                             command_line,
-                             NULL,   // No security attribute.
-                             NULL,   // No thread attribute.
-                             FALSE,  // Do not inherit handles.
-                             flags,
-                             NULL,   // Use the environment of the caller.
-                             NULL,   // Use current directory of the caller.
-                             &startup_info,
-                             &temp_process_info)) {
-    return ::GetLastError();
-  }
-  base::win::ScopedProcessInformation process_info(temp_process_info);
-
-  // Change the token of the main thread of the new process for the
-  // impersonation token with more rights.
-  {
-    HANDLE temp_thread = process_info.thread_handle();
-    if (!::SetThreadToken(&temp_thread, impersonation_token.Get())) {
-      auto last_error = ::GetLastError();
-      ::TerminateProcess(process_info.process_handle(),
-                         0);  // exit code
-      return last_error;
-    }
-  }
-
-  err_code = job.AssignProcessToJob(process_info.process_handle());
-  if (ERROR_SUCCESS != err_code) {
-    auto last_error = ::GetLastError();
-    ::TerminateProcess(process_info.process_handle(),
-                       0);  // exit code
-    return last_error;
-  }
-
-  // Start the application
-  ::ResumeThread(process_info.thread_handle());
-
-  *job_handle = job.Take();
-
-  return ERROR_SUCCESS;
-}
-
-}  // namespace
-
-#define PARAM_IS(y) (argc > i) && (_wcsicmp(argv[i], y) == 0)
-
-void PrintUsage(const wchar_t *application_name) {
-  wprintf(L"\n\nUsage: \n  %ls --main level --init level --job level cmd_line ",
-          application_name);
-  wprintf(L"\n\n  Levels : \n\tLOCKDOWN \n\tRESTRICTED "
-      L"\n\tLIMITED_USER \n\tINTERACTIVE_USER \n\tNON_ADMIN \n\tUNPROTECTED");
-  wprintf(L"\n\n  main: Security level of the main token");
-  wprintf(L"\n  init: Security level of the impersonation token");
-  wprintf(L"\n  job: Security level of the job object");
-}
-
-bool GetTokenLevelFromString(const wchar_t *param,
-                             sandbox::TokenLevel* level) {
-  if (_wcsicmp(param, L"LOCKDOWN") == 0) {
-    *level = sandbox::USER_LOCKDOWN;
-  } else if (_wcsicmp(param, L"RESTRICTED") == 0) {
-    *level = sandbox::USER_RESTRICTED;
-  } else if (_wcsicmp(param, L"LIMITED_USER") == 0) {
-    *level = sandbox::USER_LIMITED;
-  } else if (_wcsicmp(param, L"INTERACTIVE_USER") == 0) {
-    *level = sandbox::USER_INTERACTIVE;
-  } else if (_wcsicmp(param, L"NON_ADMIN") == 0) {
-    *level = sandbox::USER_NON_ADMIN;
-  } else if (_wcsicmp(param, L"USER_RESTRICTED_SAME_ACCESS") == 0) {
-    *level = sandbox::USER_RESTRICTED_SAME_ACCESS;
-  } else if (_wcsicmp(param, L"UNPROTECTED") == 0) {
-    *level = sandbox::USER_UNPROTECTED;
-  } else {
-    return false;
-  }
-
-  return true;
-}
-
-bool GetJobLevelFromString(const wchar_t *param, sandbox::JobLevel* level) {
-  if (_wcsicmp(param, L"LOCKDOWN") == 0) {
-    *level = sandbox::JOB_LOCKDOWN;
-  } else if (_wcsicmp(param, L"RESTRICTED") == 0) {
-    *level = sandbox::JOB_RESTRICTED;
-  } else if (_wcsicmp(param, L"LIMITED_USER") == 0) {
-    *level = sandbox::JOB_LIMITED_USER;
-  } else if (_wcsicmp(param, L"INTERACTIVE_USER") == 0) {
-    *level = sandbox::JOB_INTERACTIVE;
-  } else if (_wcsicmp(param, L"NON_ADMIN") == 0) {
-    wprintf(L"\nNON_ADMIN is not a supported job type");
-    return false;
-  } else if (_wcsicmp(param, L"UNPROTECTED") == 0) {
-    *level = sandbox::JOB_UNPROTECTED;
-  } else {
-    return false;
-  }
-
-  return true;
-}
-
-int wmain(int argc, wchar_t *argv[]) {
-  // Extract the filename from the path.
-  wchar_t *app_name = wcsrchr(argv[0], L'\\');
-  if (!app_name) {
-    app_name = argv[0];
-  } else {
-    app_name++;
-  }
-
-  // no argument
-  if (argc == 1) {
-    PrintUsage(app_name);
-    return -1;
-  }
-
-  sandbox::TokenLevel primary_level = sandbox::USER_LOCKDOWN;
-  sandbox::TokenLevel impersonation_level =
-      sandbox::USER_RESTRICTED_SAME_ACCESS;
-  sandbox::JobLevel job_level = sandbox::JOB_LOCKDOWN;
-  ATL::CString command_line;
-
-  // parse command line.
-  for (int i = 1; i < argc; ++i) {
-    if (PARAM_IS(L"--main")) {
-      i++;
-      if (argc > i) {
-        if (!GetTokenLevelFromString(argv[i], &primary_level)) {
-          wprintf(L"\nAbord, Unrecognized main token level \"%ls\"", argv[i]);
-          PrintUsage(app_name);
-          return -1;
-        }
-      }
-    } else if (PARAM_IS(L"--init")) {
-      i++;
-      if (argc > i) {
-        if (!GetTokenLevelFromString(argv[i], &impersonation_level)) {
-          wprintf(L"\nAbord, Unrecognized init token level \"%ls\"", argv[i]);
-          PrintUsage(app_name);
-          return -1;
-        }
-      }
-    } else if (PARAM_IS(L"--job")) {
-      i++;
-      if (argc > i) {
-        if (!GetJobLevelFromString(argv[i], &job_level)) {
-          wprintf(L"\nAbord, Unrecognized job security level \"%ls\"", argv[i]);
-          PrintUsage(app_name);
-          return -1;
-        }
-      }
-    } else {
-      if (command_line.GetLength()) {
-        command_line += L' ';
-      }
-      command_line += argv[i];
-    }
-  }
-
-  if (!command_line.GetLength()) {
-    wprintf(L"\nAbord, No command line specified");
-    PrintUsage(app_name);
-    return -1;
-  }
-
-  wprintf(L"\nLaunching command line: \"%ls\"\n", command_line.GetBuffer());
-
-  base::win::ScopedHandle job_handle;
-  DWORD err_code = StartRestrictedProcessInJob(
-      command_line.GetBuffer(),
-      primary_level,
-      impersonation_level,
-      job_level,
-      &job_handle);
-  if (ERROR_SUCCESS != err_code) {
-    wprintf(L"\nAbord, Error %d while launching command line.", err_code);
-    return -1;
-  }
-
-  wprintf(L"\nPress any key to continue.");
-  while(!_kbhit()) {
-    Sleep(100);
-  }
-
-  return 0;
-}