// Copyright (c) 2013 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/process/kill.h" #include #include #include #include #include "base/logging.h" #include "base/notreached.h" #include "base/process/memory.h" #include "base/process/process_iterator.h" namespace base { TerminationStatus GetTerminationStatus(ProcessHandle handle, int* exit_code) { DCHECK(exit_code); DWORD tmp_exit_code = 0; if (!::GetExitCodeProcess(handle, &tmp_exit_code)) { DPLOG(FATAL) << "GetExitCodeProcess() failed"; // This really is a random number. We haven't received any // information about the exit code, presumably because this // process doesn't have permission to get the exit code, or // because of some other cause for GetExitCodeProcess to fail // (MSDN docs don't give the possible failure error codes for // this function, so it could be anything). But we don't want // to leave exit_code uninitialized, since that could cause // random interpretations of the exit code. So we assume it // terminated "normally" in this case. *exit_code = win::kNormalTerminationExitCode; // Assume the child has exited normally if we can't get the exit // code. return TERMINATION_STATUS_NORMAL_TERMINATION; } if (tmp_exit_code == STILL_ACTIVE) { DWORD wait_result = WaitForSingleObject(handle, 0); if (wait_result == WAIT_TIMEOUT) { *exit_code = static_cast(wait_result); return TERMINATION_STATUS_STILL_RUNNING; } if (wait_result == WAIT_FAILED) { DPLOG(ERROR) << "WaitForSingleObject() failed"; } else { DCHECK_EQ(WAIT_OBJECT_0, wait_result); // Strange, the process used 0x103 (STILL_ACTIVE) as exit code. NOTREACHED(); } return TERMINATION_STATUS_ABNORMAL_TERMINATION; } *exit_code = static_cast(tmp_exit_code); // clang-format off switch (tmp_exit_code) { case win::kNormalTerminationExitCode: return TERMINATION_STATUS_NORMAL_TERMINATION; case win::kDebuggerInactiveExitCode: // STATUS_DEBUGGER_INACTIVE. case win::kKeyboardInterruptExitCode: // Control-C/end session. case win::kDebuggerTerminatedExitCode: // Debugger terminated process. case win::kProcessKilledExitCode: // Task manager kill. return TERMINATION_STATUS_PROCESS_WAS_KILLED; case win::kSandboxFatalMemoryExceeded: // Terminated process due to // exceeding the sandbox job // object memory limits. case win::kOomExceptionCode: // Ran out of memory. return TERMINATION_STATUS_OOM; // This exit code means the process failed an OS integrity check. // This is tested in ProcessMitigationsTest.* in sandbox. case win::kStatusInvalidImageHashExitCode: return TERMINATION_STATUS_INTEGRITY_FAILURE; default: // All other exit codes indicate crashes. return TERMINATION_STATUS_PROCESS_CRASHED; } // clang-format on } bool WaitForProcessesToExit(const FilePath::StringType& executable_name, TimeDelta wait, const ProcessFilter* filter) { bool result = true; DWORD start_time = GetTickCount(); NamedProcessIterator iter(executable_name, filter); for (const ProcessEntry* entry = iter.NextProcessEntry(); entry; entry = iter.NextProcessEntry()) { DWORD remaining_wait = static_cast( std::max(static_cast(0), wait.InMilliseconds() - (GetTickCount() - start_time))); HANDLE process = OpenProcess(SYNCHRONIZE, FALSE, entry->th32ProcessID); DWORD wait_result = WaitForSingleObject(process, remaining_wait); CloseHandle(process); result &= (wait_result == WAIT_OBJECT_0); } return result; } bool CleanupProcesses(const FilePath::StringType& executable_name, TimeDelta wait, int exit_code, const ProcessFilter* filter) { if (WaitForProcessesToExit(executable_name, wait, filter)) return true; KillProcesses(executable_name, exit_code, filter); return false; } } // namespace base