/*
* Copyright (C) 2018 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 "ueventd_parser.h"
#include <android-base/test_utils.h>
#include <gtest/gtest.h>
#include <private/android_filesystem_config.h>
namespace android {
namespace init {
void TestSubsystems(const Subsystem& expected, const Subsystem& test) {
EXPECT_EQ(expected.name_, test.name_);
EXPECT_EQ(expected.devname_source_, test.devname_source_) << expected.name_;
EXPECT_EQ(expected.dir_name_, test.dir_name_) << expected.name_;
}
void TestPermissions(const Permissions& expected, const Permissions& test) {
EXPECT_EQ(expected.name_, test.name_);
EXPECT_EQ(expected.perm_, test.perm_) << expected.name_;
EXPECT_EQ(expected.uid_, test.uid_) << expected.name_;
EXPECT_EQ(expected.gid_, test.gid_) << expected.name_;
EXPECT_EQ(expected.prefix_, test.prefix_) << expected.name_;
EXPECT_EQ(expected.wildcard_, test.wildcard_) << expected.name_;
}
void TestSysfsPermissions(const SysfsPermissions& expected, const SysfsPermissions& test) {
TestPermissions(expected, test);
EXPECT_EQ(expected.attribute_, test.attribute_);
}
template <typename T, typename F>
void TestVector(const T& expected, const T& test, F function) {
ASSERT_EQ(expected.size(), test.size());
auto expected_it = expected.begin();
auto test_it = test.begin();
for (; expected_it != expected.end(); ++expected_it, ++test_it) {
function(*expected_it, *test_it);
}
}
void TestUeventdFile(const std::string& content, const UeventdConfiguration& expected) {
TemporaryFile tf;
ASSERT_TRUE(tf.fd != -1);
ASSERT_TRUE(android::base::WriteStringToFd(content, tf.fd));
auto result = ParseConfig({tf.path});
TestVector(expected.subsystems, result.subsystems, TestSubsystems);
TestVector(expected.sysfs_permissions, result.sysfs_permissions, TestSysfsPermissions);
TestVector(expected.dev_permissions, result.dev_permissions, TestPermissions);
EXPECT_EQ(expected.firmware_directories, result.firmware_directories);
}
TEST(ueventd_parser, EmptyFile) {
TestUeventdFile("", {});
}
TEST(ueventd_parser, Subsystems) {
auto ueventd_file = R"(
subsystem test_devname
devname uevent_devname
subsystem test_devpath_no_dirname
devname uevent_devpath
subsystem test_devname2
devname uevent_devname
subsystem test_devpath_dirname
devname uevent_devpath
dirname /dev/graphics
)";
auto subsystems = std::vector<Subsystem>{
{"test_devname", Subsystem::DEVNAME_UEVENT_DEVNAME, "/dev"},
{"test_devpath_no_dirname", Subsystem::DEVNAME_UEVENT_DEVPATH, "/dev"},
{"test_devname2", Subsystem::DEVNAME_UEVENT_DEVNAME, "/dev"},
{"test_devpath_dirname", Subsystem::DEVNAME_UEVENT_DEVPATH, "/dev/graphics"}};
TestUeventdFile(ueventd_file, {subsystems, {}, {}, {}});
}
TEST(ueventd_parser, Permissions) {
auto ueventd_file = R"(
/dev/rtc0 0640 system system
/dev/graphics/* 0660 root graphics
/dev/*/test 0660 root system
/sys/devices/platform/trusty.* trusty_version 0440 root log
/sys/devices/virtual/input/input enable 0660 root input
/sys/devices/virtual/*/input poll_delay 0660 root input
)";
auto permissions = std::vector<Permissions>{
{"/dev/rtc0", 0640, AID_SYSTEM, AID_SYSTEM},
{"/dev/graphics/*", 0660, AID_ROOT, AID_GRAPHICS},
{"/dev/*/test", 0660, AID_ROOT, AID_SYSTEM},
};
auto sysfs_permissions = std::vector<SysfsPermissions>{
{"/sys/devices/platform/trusty.*", "trusty_version", 0440, AID_ROOT, AID_LOG},
{"/sys/devices/virtual/input/input", "enable", 0660, AID_ROOT, AID_INPUT},
{"/sys/devices/virtual/*/input", "poll_delay", 0660, AID_ROOT, AID_INPUT},
};
TestUeventdFile(ueventd_file, {{}, sysfs_permissions, permissions, {}});
}
TEST(ueventd_parser, FirmwareDirectories) {
auto ueventd_file = R"(
firmware_directories /first/ /second /third
firmware_directories /more
)";
auto firmware_directories = std::vector<std::string>{
"/first/",
"/second",
"/third",
"/more",
};
TestUeventdFile(ueventd_file, {{}, {}, {}, firmware_directories});
}
TEST(ueventd_parser, AllTogether) {
auto ueventd_file = R"(
/dev/rtc0 0640 system system
firmware_directories /first/ /second /third
/sys/devices/platform/trusty.* trusty_version 0440 root log
subsystem test_devname
devname uevent_devname
/dev/graphics/* 0660 root graphics
subsystem test_devpath_no_dirname
devname uevent_devpath
/sys/devices/virtual/input/input enable 0660 root input
## this is a comment
subsystem test_devname2
## another comment
devname uevent_devname
subsystem test_devpath_dirname
devname uevent_devpath
dirname /dev/graphics
/dev/*/test 0660 root system
/sys/devices/virtual/*/input poll_delay 0660 root input
firmware_directories /more
#ending comment
)";
auto subsystems = std::vector<Subsystem>{
{"test_devname", Subsystem::DEVNAME_UEVENT_DEVNAME, "/dev"},
{"test_devpath_no_dirname", Subsystem::DEVNAME_UEVENT_DEVPATH, "/dev"},
{"test_devname2", Subsystem::DEVNAME_UEVENT_DEVNAME, "/dev"},
{"test_devpath_dirname", Subsystem::DEVNAME_UEVENT_DEVPATH, "/dev/graphics"}};
auto permissions = std::vector<Permissions>{
{"/dev/rtc0", 0640, AID_SYSTEM, AID_SYSTEM},
{"/dev/graphics/*", 0660, AID_ROOT, AID_GRAPHICS},
{"/dev/*/test", 0660, AID_ROOT, AID_SYSTEM},
};
auto sysfs_permissions = std::vector<SysfsPermissions>{
{"/sys/devices/platform/trusty.*", "trusty_version", 0440, AID_ROOT, AID_LOG},
{"/sys/devices/virtual/input/input", "enable", 0660, AID_ROOT, AID_INPUT},
{"/sys/devices/virtual/*/input", "poll_delay", 0660, AID_ROOT, AID_INPUT},
};
auto firmware_directories = std::vector<std::string>{
"/first/",
"/second",
"/third",
"/more",
};
TestUeventdFile(ueventd_file,
{subsystems, sysfs_permissions, permissions, firmware_directories});
}
// All of these lines are ill-formed, so test that there is 0 output.
TEST(ueventd_parser, ParseErrors) {
auto ueventd_file = R"(
/dev/rtc0 badmode baduidbad system
/dev/rtc0 0640 baduidbad system
/dev/rtc0 0640 system baduidbad
firmware_directories #no directory listed
/sys/devices/platform/trusty.* trusty_version badmode root log
/sys/devices/platform/trusty.* trusty_version 0440 baduidbad log
/sys/devices/platform/trusty.* trusty_version 0440 root baduidbad
subsystem #no name
)";
TestUeventdFile(ueventd_file, {});
}
} // namespace init
} // namespace android
