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/*
* Copyright (C) 2019 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 <functional>
#include <android-base/file.h>
#include <android-base/macros.h>
#include <android-base/unique_fd.h>
#include <gtest/gtest.h>
#include <modprobe/modprobe.h>
#include "libmodprobe_test.h"
// Used by libmodprobe_ext_test to check if requested modules are present.
std::vector<std::string> test_modules;
// Used by libmodprobe_ext_test to report which modules would have been loaded.
std::vector<std::string> modules_loaded;
// Used by libmodprobe_ext_test to fake a kernel commandline
std::string kernel_cmdline;
TEST(libmodprobe, Test) {
kernel_cmdline =
"flag1 flag2 test1.option1=50 test4.option3=\"set x\" test1.option2=60 "
"test8. test5.option1= test10.option1=1";
test_modules = {
"/test1.ko", "/test2.ko", "/test3.ko", "/test4.ko", "/test5.ko",
"/test6.ko", "/test7.ko", "/test8.ko", "/test9.ko", "/test10.ko",
"/test11.ko", "/test12.ko", "/test13.ko", "/test14.ko", "/test15.ko",
};
std::vector<std::string> expected_modules_loaded = {
"/test14.ko",
"/test15.ko",
"/test3.ko",
"/test4.ko option3=\"set x\"",
"/test1.ko option1=50 option2=60",
"/test6.ko",
"/test2.ko",
"/test5.ko option1=",
"/test8.ko",
"/test7.ko param1=4",
"/test9.ko param_x=1 param_y=2 param_z=3",
"/test10.ko option1=1",
"/test12.ko",
"/test11.ko",
"/test13.ko",
};
std::vector<std::string> expected_after_remove = {
"/test14.ko",
"/test15.ko",
"/test1.ko option1=50 option2=60",
"/test6.ko",
"/test2.ko",
"/test5.ko option1=",
"/test8.ko",
"/test7.ko param1=4",
"/test9.ko param_x=1 param_y=2 param_z=3",
"/test10.ko option1=1",
"/test12.ko",
"/test11.ko",
"/test13.ko",
};
std::vector<std::string> expected_modules_blocklist_enabled = {
"/test1.ko option1=50 option2=60",
"/test6.ko",
"/test2.ko",
"/test5.ko option1=",
"/test8.ko",
"/test7.ko param1=4",
"/test12.ko",
"/test11.ko",
"/test13.ko",
};
const std::string modules_dep =
"test1.ko:\n"
"test2.ko:\n"
"test3.ko:\n"
"test4.ko: test3.ko\n"
"test5.ko: test2.ko test6.ko\n"
"test6.ko:\n"
"test7.ko:\n"
"test8.ko:\n"
"test9.ko:\n"
"test10.ko:\n"
"test11.ko:\n"
"test12.ko:\n"
"test13.ko:\n"
"test14.ko:\n"
"test15.ko:\n";
const std::string modules_softdep =
"softdep test7 pre: test8\n"
"softdep test9 post: test10\n"
"softdep test11 pre: test12 post: test13\n"
"softdep test3 pre: test141516\n";
const std::string modules_alias =
"# Aliases extracted from modules themselves.\n"
"\n"
"alias test141516 test14\n"
"alias test141516 test15\n"
"alias test141516 test16\n";
const std::string modules_options =
"options test7.ko param1=4\n"
"options test9.ko param_x=1 param_y=2 param_z=3\n"
"options test100.ko param_1=1\n";
const std::string modules_blocklist =
"blocklist test9.ko\n"
"blocklist test3.ko\n";
const std::string modules_load =
"test4.ko\n"
"test1.ko\n"
"test3.ko\n"
"test5.ko\n"
"test7.ko\n"
"test9.ko\n"
"test11.ko\n";
TemporaryDir dir;
auto dir_path = std::string(dir.path);
ASSERT_TRUE(android::base::WriteStringToFile(modules_alias, dir_path + "/modules.alias", 0600,
getuid(), getgid()));
ASSERT_TRUE(android::base::WriteStringToFile(modules_dep, dir_path + "/modules.dep", 0600,
getuid(), getgid()));
ASSERT_TRUE(android::base::WriteStringToFile(modules_softdep, dir_path + "/modules.softdep",
0600, getuid(), getgid()));
ASSERT_TRUE(android::base::WriteStringToFile(modules_options, dir_path + "/modules.options",
0600, getuid(), getgid()));
ASSERT_TRUE(android::base::WriteStringToFile(modules_load, dir_path + "/modules.load", 0600,
getuid(), getgid()));
ASSERT_TRUE(android::base::WriteStringToFile(modules_blocklist, dir_path + "/modules.blocklist",
0600, getuid(), getgid()));
for (auto i = test_modules.begin(); i != test_modules.end(); ++i) {
*i = dir.path + *i;
}
Modprobe m({dir.path}, "modules.load", false);
EXPECT_TRUE(m.LoadListedModules());
GTEST_LOG_(INFO) << "Expected modules loaded (in order):";
for (auto i = expected_modules_loaded.begin(); i != expected_modules_loaded.end(); ++i) {
*i = dir.path + *i;
GTEST_LOG_(INFO) << "\"" << *i << "\"";
}
GTEST_LOG_(INFO) << "Actual modules loaded (in order):";
for (auto i = modules_loaded.begin(); i != modules_loaded.end(); ++i) {
GTEST_LOG_(INFO) << "\"" << *i << "\"";
}
EXPECT_TRUE(modules_loaded == expected_modules_loaded);
EXPECT_TRUE(m.GetModuleCount() == 15);
EXPECT_TRUE(m.Remove("test4"));
GTEST_LOG_(INFO) << "Expected modules loaded after removing test4 (in order):";
for (auto i = expected_after_remove.begin(); i != expected_after_remove.end(); ++i) {
*i = dir.path + *i;
GTEST_LOG_(INFO) << "\"" << *i << "\"";
}
GTEST_LOG_(INFO) << "Actual modules loaded after removing test4 (in order):";
for (auto i = modules_loaded.begin(); i != modules_loaded.end(); ++i) {
GTEST_LOG_(INFO) << "\"" << *i << "\"";
}
EXPECT_TRUE(modules_loaded == expected_after_remove);
Modprobe m2({dir.path});
EXPECT_FALSE(m2.LoadWithAliases("test4", true));
while (modules_loaded.size() > 0) EXPECT_TRUE(m2.Remove(modules_loaded.front()));
EXPECT_TRUE(m2.LoadListedModules());
GTEST_LOG_(INFO) << "Expected modules loaded after enabling blocklist (in order):";
for (auto i = expected_modules_blocklist_enabled.begin();
i != expected_modules_blocklist_enabled.end(); ++i) {
*i = dir.path + *i;
GTEST_LOG_(INFO) << "\"" << *i << "\"";
}
GTEST_LOG_(INFO) << "Actual modules loaded with blocklist enabled (in order):";
for (auto i = modules_loaded.begin(); i != modules_loaded.end(); ++i) {
GTEST_LOG_(INFO) << "\"" << *i << "\"";
}
EXPECT_TRUE(modules_loaded == expected_modules_blocklist_enabled);
}
TEST(libmodprobe, ModuleDepLineWithoutColonIsSkipped) {
TemporaryDir dir;
auto dir_path = std::string(dir.path);
ASSERT_TRUE(android::base::WriteStringToFile(
"no_colon.ko no_colon.ko\n", dir_path + "/modules.dep", 0600, getuid(), getgid()));
kernel_cmdline = "";
test_modules = {dir_path + "/no_colon.ko"};
Modprobe m({dir.path});
EXPECT_FALSE(m.LoadWithAliases("no_colon", true));
}
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