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/*
* Copyright (C) 2017 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 <unistd.h>
#include <memory>
#include <string>
#include <vector>
#include <android-base/file.h>
#include <android-base/strings.h>
#include <gtest/gtest.h>
#include "fuse_provider.h"
#include "fuse_sideload.h"
TEST(SideloadTest, fuse_device) {
ASSERT_EQ(0, access("/dev/fuse", R_OK | W_OK));
}
class FuseTestDataProvider : public FuseDataProvider {
public:
FuseTestDataProvider(uint64_t file_size, uint32_t block_size)
: FuseDataProvider(file_size, block_size) {}
private:
bool ReadBlockAlignedData(uint8_t*, uint32_t, uint32_t) const override {
return true;
}
bool Valid() const override {
return true;
}
};
TEST(SideloadTest, run_fuse_sideload_wrong_parameters) {
auto provider_small_block = std::make_unique<FuseTestDataProvider>(4096, 4095);
ASSERT_EQ(-1, run_fuse_sideload(std::move(provider_small_block)));
auto provider_large_block = std::make_unique<FuseTestDataProvider>(4096, (1 << 22) + 1);
ASSERT_EQ(-1, run_fuse_sideload(std::move(provider_large_block)));
auto provider_too_many_blocks =
std::make_unique<FuseTestDataProvider>(((1 << 18) + 1) * 4096, 4096);
ASSERT_EQ(-1, run_fuse_sideload(std::move(provider_too_many_blocks)));
}
TEST(SideloadTest, run_fuse_sideload) {
const std::vector<std::string> blocks = {
std::string(2048, 'a') + std::string(2048, 'b'),
std::string(2048, 'c') + std::string(2048, 'd'),
std::string(2048, 'e') + std::string(2048, 'f'),
std::string(2048, 'g') + std::string(2048, 'h'),
};
const std::string content = android::base::Join(blocks, "");
ASSERT_EQ(16384U, content.size());
TemporaryFile temp_file;
ASSERT_TRUE(android::base::WriteStringToFile(content, temp_file.path));
auto provider = std::make_unique<FuseFileDataProvider>(temp_file.path, 4096);
ASSERT_TRUE(provider->Valid());
TemporaryDir mount_point;
pid_t pid = fork();
if (pid == 0) {
ASSERT_EQ(0, run_fuse_sideload(std::move(provider), mount_point.path));
_exit(EXIT_SUCCESS);
}
std::string package = std::string(mount_point.path) + "/" + FUSE_SIDELOAD_HOST_FILENAME;
int status;
static constexpr int kSideloadInstallTimeout = 10;
for (int i = 0; i < kSideloadInstallTimeout; ++i) {
ASSERT_NE(-1, waitpid(pid, &status, WNOHANG));
struct stat sb;
if (stat(package.c_str(), &sb) == 0) {
break;
}
if (errno == ENOENT && i < kSideloadInstallTimeout - 1) {
sleep(1);
continue;
}
FAIL() << "Timed out waiting for the fuse-provided package.";
}
std::string content_via_fuse;
ASSERT_TRUE(android::base::ReadFileToString(package, &content_via_fuse));
ASSERT_EQ(content, content_via_fuse);
std::string exit_flag = std::string(mount_point.path) + "/" + FUSE_SIDELOAD_HOST_EXIT_FLAG;
struct stat sb;
ASSERT_EQ(0, stat(exit_flag.c_str(), &sb));
waitpid(pid, &status, 0);
ASSERT_EQ(0, WEXITSTATUS(status));
ASSERT_EQ(EXIT_SUCCESS, WEXITSTATUS(status));
}
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