Tom Cherry | dcb3d15 | 2019-08-07 16:02:28 -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 "firmware_handler.h" |
| 18 | |
| 19 | #include <stdlib.h> |
| 20 | #include <iostream> |
| 21 | |
| 22 | #include <android-base/file.h> |
| 23 | #include <gtest/gtest.h> |
| 24 | |
| 25 | #include "uevent.h" |
| 26 | |
| 27 | using android::base::GetExecutablePath; |
| 28 | using namespace std::literals; |
| 29 | |
| 30 | namespace android { |
| 31 | namespace init { |
| 32 | |
| 33 | void FirmwareTestWithExternalHandler(const std::string& test_name, bool expect_new_firmware) { |
| 34 | auto test_path = GetExecutablePath() + " firmware " + test_name; |
| 35 | auto external_firmware_handler = ExternalFirmwareHandler( |
| 36 | "/devices/led/firmware/test_firmware001.bin", getuid(), test_path); |
| 37 | |
| 38 | auto firmware_handler = FirmwareHandler({"/test"}, {external_firmware_handler}); |
| 39 | |
| 40 | auto uevent = Uevent{ |
| 41 | .path = "/devices/led/firmware/test_firmware001.bin", |
| 42 | .firmware = "test_firmware001.bin", |
| 43 | }; |
| 44 | |
| 45 | if (expect_new_firmware) { |
| 46 | EXPECT_EQ("other_firmware001.bin", firmware_handler.GetFirmwarePath(uevent)); |
| 47 | } else { |
| 48 | EXPECT_EQ("test_firmware001.bin", firmware_handler.GetFirmwarePath(uevent)); |
| 49 | } |
| 50 | |
| 51 | // Always test the base case that the handler isn't invoked if the devpath doesn't match. |
| 52 | auto uevent_different_path = Uevent{ |
| 53 | .path = "/devices/led/not/mine", |
| 54 | .firmware = "test_firmware001.bin", |
| 55 | }; |
| 56 | EXPECT_EQ("test_firmware001.bin", firmware_handler.GetFirmwarePath(uevent_different_path)); |
| 57 | } |
| 58 | |
| 59 | TEST(firmware_handler, HandleChange) { |
| 60 | FirmwareTestWithExternalHandler("HandleChange", true); |
| 61 | } |
| 62 | |
| 63 | int HandleChange(int argc, char** argv) { |
| 64 | // Assert that the environment is set up correctly. |
| 65 | if (getenv("DEVPATH") != "/devices/led/firmware/test_firmware001.bin"s) { |
| 66 | std::cerr << "$DEVPATH not set correctly" << std::endl; |
| 67 | return EXIT_FAILURE; |
| 68 | } |
| 69 | if (getenv("FIRMWARE") != "test_firmware001.bin"s) { |
| 70 | std::cerr << "$FIRMWARE not set correctly" << std::endl; |
| 71 | return EXIT_FAILURE; |
| 72 | } |
| 73 | std::cout << "other_firmware001.bin" << std::endl; |
| 74 | return 0; |
| 75 | } |
| 76 | |
| 77 | TEST(firmware_handler, HandleAbort) { |
| 78 | FirmwareTestWithExternalHandler("HandleAbort", false); |
| 79 | } |
| 80 | |
| 81 | int HandleAbort(int argc, char** argv) { |
Tom Cherry | 94b1c57 | 2020-12-15 06:38:55 -0800 | [diff] [blame] | 82 | // Since this is an expected failure, disable debuggerd to not generate a tombstone. |
| 83 | signal(SIGABRT, SIG_DFL); |
Tom Cherry | dcb3d15 | 2019-08-07 16:02:28 -0700 | [diff] [blame] | 84 | abort(); |
| 85 | return 0; |
| 86 | } |
| 87 | |
| 88 | TEST(firmware_handler, HandleFailure) { |
| 89 | FirmwareTestWithExternalHandler("HandleFailure", false); |
| 90 | } |
| 91 | |
| 92 | int HandleFailure(int argc, char** argv) { |
| 93 | std::cerr << "Failed" << std::endl; |
| 94 | return EXIT_FAILURE; |
| 95 | } |
| 96 | |
| 97 | TEST(firmware_handler, HandleBadPath) { |
| 98 | FirmwareTestWithExternalHandler("HandleBadPath", false); |
| 99 | } |
| 100 | |
| 101 | int HandleBadPath(int argc, char** argv) { |
| 102 | std::cout << "../firmware.bin"; |
| 103 | return 0; |
| 104 | } |
| 105 | |
David Anderson | 19872d0 | 2021-04-16 13:33:56 -0700 | [diff] [blame] | 106 | TEST(firmware_handler, Matching) { |
| 107 | ExternalFirmwareHandler h("/dev/path/a.bin", getuid(), "/test"); |
| 108 | ASSERT_TRUE(h.match("/dev/path/a.bin")); |
| 109 | ASSERT_FALSE(h.match("/dev/path/a.bi")); |
| 110 | |
| 111 | h = ExternalFirmwareHandler("/dev/path/a.*", getuid(), "/test"); |
| 112 | ASSERT_TRUE(h.match("/dev/path/a.bin")); |
| 113 | ASSERT_TRUE(h.match("/dev/path/a.bix")); |
| 114 | ASSERT_FALSE(h.match("/dev/path/b.bin")); |
| 115 | |
| 116 | h = ExternalFirmwareHandler("/dev/*/a.bin", getuid(), "/test"); |
| 117 | ASSERT_TRUE(h.match("/dev/path/a.bin")); |
| 118 | ASSERT_TRUE(h.match("/dev/other/a.bin")); |
| 119 | ASSERT_FALSE(h.match("/dev/other/c.bin")); |
| 120 | ASSERT_FALSE(h.match("/dev/path/b.bin")); |
| 121 | } |
| 122 | |
Tom Cherry | dcb3d15 | 2019-08-07 16:02:28 -0700 | [diff] [blame] | 123 | } // namespace init |
| 124 | } // namespace android |
| 125 | |
| 126 | // init_test.cpp contains the main entry point for all init tests. |
| 127 | int FirmwareTestChildMain(int argc, char** argv) { |
| 128 | if (argc < 3) { |
| 129 | return 1; |
| 130 | } |
| 131 | |
| 132 | #define RunTest(testname) \ |
| 133 | if (argv[2] == std::string(#testname)) { \ |
| 134 | return android::init::testname(argc, argv); \ |
| 135 | } |
| 136 | |
| 137 | RunTest(HandleChange); |
| 138 | RunTest(HandleAbort); |
| 139 | RunTest(HandleFailure); |
| 140 | RunTest(HandleBadPath); |
| 141 | |
| 142 | #undef RunTest |
| 143 | return 1; |
| 144 | } |