Steve Muckle | 18b981e | 2019-04-15 17:43:02 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2019 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #include <functional> |
| 18 | |
| 19 | #include <android-base/file.h> |
| 20 | #include <android-base/macros.h> |
| 21 | #include <android-base/unique_fd.h> |
| 22 | #include <gtest/gtest.h> |
| 23 | |
| 24 | #include <modprobe/modprobe.h> |
| 25 | |
| 26 | #include "libmodprobe_test.h" |
| 27 | |
| 28 | // Used by libmodprobe_ext_test to check if requested modules are present. |
| 29 | std::vector<std::string> test_modules; |
| 30 | |
| 31 | // Used by libmodprobe_ext_test to report which modules would have been loaded. |
| 32 | std::vector<std::string> modules_loaded; |
| 33 | |
Steve Muckle | 373a3ca | 2019-12-06 17:08:09 -0800 | [diff] [blame] | 34 | // Used by libmodprobe_ext_test to fake a kernel commandline |
| 35 | std::string kernel_cmdline; |
| 36 | |
Steve Muckle | 18b981e | 2019-04-15 17:43:02 -0700 | [diff] [blame] | 37 | TEST(libmodprobe, Test) { |
Steve Muckle | 373a3ca | 2019-12-06 17:08:09 -0800 | [diff] [blame] | 38 | kernel_cmdline = |
| 39 | "flag1 flag2 test1.option1=50 test4.option3=\"set x\" test1.option2=60 " |
| 40 | "test8. test5.option1= test10.option1=1"; |
Steve Muckle | 18b981e | 2019-04-15 17:43:02 -0700 | [diff] [blame] | 41 | test_modules = { |
| 42 | "/test1.ko", "/test2.ko", "/test3.ko", "/test4.ko", "/test5.ko", |
| 43 | "/test6.ko", "/test7.ko", "/test8.ko", "/test9.ko", "/test10.ko", |
| 44 | "/test11.ko", "/test12.ko", "/test13.ko", "/test14.ko", "/test15.ko", |
| 45 | }; |
| 46 | |
| 47 | std::vector<std::string> expected_modules_loaded = { |
| 48 | "/test14.ko", |
| 49 | "/test15.ko", |
| 50 | "/test3.ko", |
Steve Muckle | 373a3ca | 2019-12-06 17:08:09 -0800 | [diff] [blame] | 51 | "/test4.ko option3=\"set x\"", |
| 52 | "/test1.ko option1=50 option2=60", |
Steve Muckle | 18b981e | 2019-04-15 17:43:02 -0700 | [diff] [blame] | 53 | "/test6.ko", |
| 54 | "/test2.ko", |
Steve Muckle | 373a3ca | 2019-12-06 17:08:09 -0800 | [diff] [blame] | 55 | "/test5.ko option1=", |
Steve Muckle | 18b981e | 2019-04-15 17:43:02 -0700 | [diff] [blame] | 56 | "/test8.ko", |
| 57 | "/test7.ko param1=4", |
| 58 | "/test9.ko param_x=1 param_y=2 param_z=3", |
Steve Muckle | 373a3ca | 2019-12-06 17:08:09 -0800 | [diff] [blame] | 59 | "/test10.ko option1=1", |
Steve Muckle | 18b981e | 2019-04-15 17:43:02 -0700 | [diff] [blame] | 60 | "/test12.ko", |
| 61 | "/test11.ko", |
| 62 | "/test13.ko", |
| 63 | }; |
| 64 | |
Steve Muckle | bb58b01 | 2019-07-30 11:58:11 -0700 | [diff] [blame] | 65 | std::vector<std::string> expected_after_remove = { |
Steve Muckle | 373a3ca | 2019-12-06 17:08:09 -0800 | [diff] [blame] | 66 | "/test14.ko", |
| 67 | "/test15.ko", |
| 68 | "/test1.ko option1=50 option2=60", |
| 69 | "/test6.ko", |
| 70 | "/test2.ko", |
| 71 | "/test5.ko option1=", |
| 72 | "/test8.ko", |
| 73 | "/test7.ko param1=4", |
| 74 | "/test9.ko param_x=1 param_y=2 param_z=3", |
| 75 | "/test10.ko option1=1", |
| 76 | "/test12.ko", |
| 77 | "/test11.ko", |
Steve Muckle | bb58b01 | 2019-07-30 11:58:11 -0700 | [diff] [blame] | 78 | "/test13.ko", |
| 79 | }; |
| 80 | |
Will McVicker | 87b2ef0 | 2021-03-12 11:11:37 -0800 | [diff] [blame^] | 81 | std::vector<std::string> expected_modules_blocklist_enabled = { |
| 82 | "/test1.ko option1=50 option2=60", |
| 83 | "/test6.ko", |
| 84 | "/test2.ko", |
| 85 | "/test5.ko option1=", |
| 86 | "/test8.ko", |
| 87 | "/test7.ko param1=4", |
| 88 | "/test12.ko", |
| 89 | "/test11.ko", |
| 90 | "/test13.ko", |
| 91 | }; |
| 92 | |
Steve Muckle | 18b981e | 2019-04-15 17:43:02 -0700 | [diff] [blame] | 93 | const std::string modules_dep = |
| 94 | "test1.ko:\n" |
| 95 | "test2.ko:\n" |
| 96 | "test3.ko:\n" |
| 97 | "test4.ko: test3.ko\n" |
| 98 | "test5.ko: test2.ko test6.ko\n" |
| 99 | "test6.ko:\n" |
| 100 | "test7.ko:\n" |
| 101 | "test8.ko:\n" |
| 102 | "test9.ko:\n" |
| 103 | "test10.ko:\n" |
| 104 | "test11.ko:\n" |
| 105 | "test12.ko:\n" |
| 106 | "test13.ko:\n" |
| 107 | "test14.ko:\n" |
| 108 | "test15.ko:\n"; |
| 109 | |
| 110 | const std::string modules_softdep = |
| 111 | "softdep test7 pre: test8\n" |
| 112 | "softdep test9 post: test10\n" |
| 113 | "softdep test11 pre: test12 post: test13\n" |
| 114 | "softdep test3 pre: test141516\n"; |
| 115 | |
| 116 | const std::string modules_alias = |
| 117 | "# Aliases extracted from modules themselves.\n" |
| 118 | "\n" |
| 119 | "alias test141516 test14\n" |
| 120 | "alias test141516 test15\n" |
| 121 | "alias test141516 test16\n"; |
| 122 | |
| 123 | const std::string modules_options = |
| 124 | "options test7.ko param1=4\n" |
| 125 | "options test9.ko param_x=1 param_y=2 param_z=3\n" |
| 126 | "options test100.ko param_1=1\n"; |
| 127 | |
Mark Salyzyn | 703fb74 | 2020-06-15 11:51:59 -0700 | [diff] [blame] | 128 | const std::string modules_blocklist = |
| 129 | "blocklist test9.ko\n" |
| 130 | "blocklist test3.ko\n"; |
Steve Muckle | e31f840 | 2019-07-31 14:34:52 -0700 | [diff] [blame] | 131 | |
Steve Muckle | 18b981e | 2019-04-15 17:43:02 -0700 | [diff] [blame] | 132 | const std::string modules_load = |
| 133 | "test4.ko\n" |
| 134 | "test1.ko\n" |
| 135 | "test3.ko\n" |
| 136 | "test5.ko\n" |
| 137 | "test7.ko\n" |
| 138 | "test9.ko\n" |
| 139 | "test11.ko\n"; |
| 140 | |
| 141 | TemporaryDir dir; |
Steve Muckle | e31f840 | 2019-07-31 14:34:52 -0700 | [diff] [blame] | 142 | auto dir_path = std::string(dir.path); |
| 143 | ASSERT_TRUE(android::base::WriteStringToFile(modules_alias, dir_path + "/modules.alias", 0600, |
| 144 | getuid(), getgid())); |
Steve Muckle | 18b981e | 2019-04-15 17:43:02 -0700 | [diff] [blame] | 145 | |
Steve Muckle | e31f840 | 2019-07-31 14:34:52 -0700 | [diff] [blame] | 146 | ASSERT_TRUE(android::base::WriteStringToFile(modules_dep, dir_path + "/modules.dep", 0600, |
| 147 | getuid(), getgid())); |
| 148 | ASSERT_TRUE(android::base::WriteStringToFile(modules_softdep, dir_path + "/modules.softdep", |
| 149 | 0600, getuid(), getgid())); |
| 150 | ASSERT_TRUE(android::base::WriteStringToFile(modules_options, dir_path + "/modules.options", |
| 151 | 0600, getuid(), getgid())); |
| 152 | ASSERT_TRUE(android::base::WriteStringToFile(modules_load, dir_path + "/modules.load", 0600, |
| 153 | getuid(), getgid())); |
Mark Salyzyn | 703fb74 | 2020-06-15 11:51:59 -0700 | [diff] [blame] | 154 | ASSERT_TRUE(android::base::WriteStringToFile(modules_blocklist, dir_path + "/modules.blocklist", |
Steve Muckle | e31f840 | 2019-07-31 14:34:52 -0700 | [diff] [blame] | 155 | 0600, getuid(), getgid())); |
Steve Muckle | 18b981e | 2019-04-15 17:43:02 -0700 | [diff] [blame] | 156 | |
| 157 | for (auto i = test_modules.begin(); i != test_modules.end(); ++i) { |
| 158 | *i = dir.path + *i; |
| 159 | } |
| 160 | |
Will McVicker | 87b2ef0 | 2021-03-12 11:11:37 -0800 | [diff] [blame^] | 161 | Modprobe m({dir.path}, "modules.load", false); |
Steve Muckle | 18b981e | 2019-04-15 17:43:02 -0700 | [diff] [blame] | 162 | EXPECT_TRUE(m.LoadListedModules()); |
| 163 | |
| 164 | GTEST_LOG_(INFO) << "Expected modules loaded (in order):"; |
| 165 | for (auto i = expected_modules_loaded.begin(); i != expected_modules_loaded.end(); ++i) { |
| 166 | *i = dir.path + *i; |
| 167 | GTEST_LOG_(INFO) << "\"" << *i << "\""; |
| 168 | } |
| 169 | GTEST_LOG_(INFO) << "Actual modules loaded (in order):"; |
| 170 | for (auto i = modules_loaded.begin(); i != modules_loaded.end(); ++i) { |
| 171 | GTEST_LOG_(INFO) << "\"" << *i << "\""; |
| 172 | } |
| 173 | |
| 174 | EXPECT_TRUE(modules_loaded == expected_modules_loaded); |
Steve Muckle | bb58b01 | 2019-07-30 11:58:11 -0700 | [diff] [blame] | 175 | |
Steve Muckle | b0c4881 | 2020-05-29 16:30:33 -0700 | [diff] [blame] | 176 | EXPECT_TRUE(m.GetModuleCount() == 15); |
Steve Muckle | bb58b01 | 2019-07-30 11:58:11 -0700 | [diff] [blame] | 177 | EXPECT_TRUE(m.Remove("test4")); |
| 178 | |
| 179 | GTEST_LOG_(INFO) << "Expected modules loaded after removing test4 (in order):"; |
| 180 | for (auto i = expected_after_remove.begin(); i != expected_after_remove.end(); ++i) { |
| 181 | *i = dir.path + *i; |
| 182 | GTEST_LOG_(INFO) << "\"" << *i << "\""; |
| 183 | } |
| 184 | GTEST_LOG_(INFO) << "Actual modules loaded after removing test4 (in order):"; |
| 185 | for (auto i = modules_loaded.begin(); i != modules_loaded.end(); ++i) { |
| 186 | GTEST_LOG_(INFO) << "\"" << *i << "\""; |
| 187 | } |
| 188 | |
| 189 | EXPECT_TRUE(modules_loaded == expected_after_remove); |
Steve Muckle | e31f840 | 2019-07-31 14:34:52 -0700 | [diff] [blame] | 190 | |
Will McVicker | 87b2ef0 | 2021-03-12 11:11:37 -0800 | [diff] [blame^] | 191 | m = Modprobe({dir.path}); |
Steve Muckle | e31f840 | 2019-07-31 14:34:52 -0700 | [diff] [blame] | 192 | EXPECT_FALSE(m.LoadWithAliases("test4", true)); |
Will McVicker | 87b2ef0 | 2021-03-12 11:11:37 -0800 | [diff] [blame^] | 193 | while (modules_loaded.size() > 0) EXPECT_TRUE(m.Remove(modules_loaded.front())); |
| 194 | EXPECT_TRUE(m.LoadListedModules()); |
| 195 | |
| 196 | GTEST_LOG_(INFO) << "Expected modules loaded after enabling blocklist (in order):"; |
| 197 | for (auto i = expected_modules_blocklist_enabled.begin(); |
| 198 | i != expected_modules_blocklist_enabled.end(); ++i) { |
| 199 | *i = dir.path + *i; |
| 200 | GTEST_LOG_(INFO) << "\"" << *i << "\""; |
| 201 | } |
| 202 | GTEST_LOG_(INFO) << "Actual modules loaded with blocklist enabled (in order):"; |
| 203 | for (auto i = modules_loaded.begin(); i != modules_loaded.end(); ++i) { |
| 204 | GTEST_LOG_(INFO) << "\"" << *i << "\""; |
| 205 | } |
| 206 | EXPECT_TRUE(modules_loaded == expected_modules_blocklist_enabled); |
Steve Muckle | 18b981e | 2019-04-15 17:43:02 -0700 | [diff] [blame] | 207 | } |
Andrew Scull | fb18f6e | 2020-10-18 17:37:27 +0100 | [diff] [blame] | 208 | |
| 209 | TEST(libmodprobe, ModuleDepLineWithoutColonIsSkipped) { |
| 210 | TemporaryDir dir; |
| 211 | auto dir_path = std::string(dir.path); |
| 212 | ASSERT_TRUE(android::base::WriteStringToFile( |
| 213 | "no_colon.ko no_colon.ko\n", dir_path + "/modules.dep", 0600, getuid(), getgid())); |
| 214 | |
| 215 | kernel_cmdline = ""; |
| 216 | test_modules = {dir_path + "/no_colon.ko"}; |
| 217 | |
| 218 | Modprobe m({dir.path}); |
| 219 | EXPECT_FALSE(m.LoadWithAliases("no_colon", true)); |
| 220 | } |