1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
|
/*
* 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/file.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, UeventSocketRcvbufSize) {
auto ueventd_file = R"(
uevent_socket_rcvbuf_size 8k
uevent_socket_rcvbuf_size 8M
)";
TestUeventdFile(ueventd_file, {{}, {}, {}, {}, false, 8 * 1024 * 1024});
}
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
uevent_socket_rcvbuf_size 6M
#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",
};
size_t uevent_socket_rcvbuf_size = 6 * 1024 * 1024;
TestUeventdFile(ueventd_file, {subsystems, sysfs_permissions, permissions, firmware_directories,
false, uevent_socket_rcvbuf_size});
}
// 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
uevent_socket_rcvbuf_size blah
subsystem #no name
)";
TestUeventdFile(ueventd_file, {});
}
} // namespace init
} // namespace android
|
