crashpad/test/linux/scoped_pr_set_ptracer.h
Joshua Peraza 9b2ba587f6 linux: Add ExceptionHandlerServer and ExceptionHandlerClient
Bug: crashpad:30
Change-Id: I60874a26ccb281144f870df2b4d16c6970a39f6b
Reviewed-on: https://chromium-review.googlesource.com/772824
Commit-Queue: Joshua Peraza <jperaza@chromium.org>
Reviewed-by: Mark Mentovai <mark@chromium.org>
2017-12-19 20:11:52 +00:00

48 lines
1.5 KiB
C++

// Copyright 2017 The Crashpad Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef CRASHPAD_TEST_LINUX_SCOPED_PR_SET_PTRACER_H_
#define CRASHPAD_TEST_LINUX_SCOPED_PR_SET_PTRACER_H_
#include <sys/types.h>
#include "base/macros.h"
namespace crashpad {
namespace test {
class ScopedPrSetPtracer {
public:
//! \brief Uses `PR_SET_PTRACER` to set \a pid as the caller's ptracer or
//! expects `EINVAL`.
//!
//! `PR_SET_PTRACER` is only supported if the Yama Linux security module (LSM)
//! is enabled. Otherwise, `prctl(PR_SET_PTRACER, ...)` fails with `EINVAL`.
//! See linux-4.9.20/security/yama/yama_lsm.c yama_task_prctl() and
//! linux-4.9.20/kernel/sys.c [sys_]prctl().
explicit ScopedPrSetPtracer(pid_t pid);
~ScopedPrSetPtracer();
private:
bool success_;
DISALLOW_COPY_AND_ASSIGN(ScopedPrSetPtracer);
};
} // namespace test
} // namespace crashpad
#endif // CRASHPAD_TEST_LINUX_SCOPED_PR_SET_PTRACER_H_