chromium/third_party/crashpad/crashpad/util/linux/scoped_ptrace_attach_test.cc

// Copyright 2017 The Crashpad Authors
//
// 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.

#include "util/linux/scoped_ptrace_attach.h"

#include <errno.h>
#include <sys/ptrace.h>
#include <unistd.h>

#include "gtest/gtest.h"
#include "test/errors.h"
#include "test/multiprocess.h"
#include "util/file/file_io.h"
#include "util/linux/scoped_pr_set_ptracer.h"

namespace crashpad {
namespace test {
namespace {

// If Yama is not enabled, the default ptrace restrictions should be
// sufficient for these tests.
//
// If Yama is enabled, then /proc/sys/kernel/yama/ptrace_scope must be 0
// (YAMA_SCOPE_DISABLED) or 1 (YAMA_SCOPE_RELATIONAL) for these tests to
// succeed. If it is 2 (YAMA_SCOPE_CAPABILITY) then the test requires
// CAP_SYS_PTRACE, and if it is 3 (YAMA_SCOPE_NO_ATTACH), these tests will fail.

class AttachTest : public Multiprocess { … };

class AttachToChildTest : public AttachTest { … };

TEST(ScopedPtraceAttach, AttachChild) { … }

class AttachToParentResetTest : public AttachTest { … };

TEST(ScopedPtraceAttach, AttachParentReset) { … }

class AttachToParentDestructorTest : public AttachTest { … };

TEST(ScopedPtraceAttach, AttachParentDestructor) { … }

}  // namespace
}  // namespace test
}  // namespace crashpad