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/*
* Copyright (C) 2014 The Android Open Source Project
*
* 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 "NativeBridgeTest.h"
#include <cstdio>
#include <cstring>
#include <cutils/log.h>
#include <dlfcn.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <sys/mount.h>
#include <sys/stat.h>
namespace android {
static constexpr const char* kTestData = "PreInitializeNativeBridge test.";
TEST_F(NativeBridgeTest, PreInitializeNativeBridge) {
#ifndef __APPLE_ // Mac OS does not support bind-mount.
#ifndef HAVE_ANDROID_OS // Cannot write into the hard-wired location.
// Try to create our mount namespace.
if (unshare(CLONE_NEWNS) != -1) {
// Create a dummy file.
FILE* cpuinfo = fopen("./cpuinfo", "w");
ASSERT_NE(nullptr, cpuinfo) << strerror(errno);
fprintf(cpuinfo, kTestData);
fclose(cpuinfo);
// Call the setup.
PreInitializeNativeBridge("does not matter 1", "short 2");
// Read /proc/cpuinfo
FILE* proc_cpuinfo = fopen("/proc/cpuinfo", "r");
ASSERT_NE(nullptr, proc_cpuinfo) << strerror(errno);
char buf[1024];
EXPECT_NE(nullptr, fgets(buf, sizeof(buf), proc_cpuinfo)) << "Error reading.";
fclose(proc_cpuinfo);
EXPECT_EQ(0, strcmp(buf, kTestData));
// Delete the file.
ASSERT_EQ(0, unlink("./cpuinfo")) << "Error unlinking temporary file.";
// Ending the test will tear down the mount namespace.
} else {
GTEST_LOG_(WARNING) << "Could not create mount namespace. Are you running this as root?";
}
#endif
#endif
}
} // namespace android
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