| /* |
| * Copyright (C) 2017 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 "devices.h" |
| |
| #include <string> |
| #include <vector> |
| |
| #include <android-base/scopeguard.h> |
| #include <gtest/gtest.h> |
| |
| template <char** (*Function)(uevent*)> |
| void test_get_symlinks(const std::string& platform_device_name, uevent* uevent, |
| const std::vector<std::string> expected_links) { |
| add_platform_device(platform_device_name.c_str()); |
| auto platform_device_remover = android::base::make_scope_guard( |
| [&platform_device_name]() { remove_platform_device(platform_device_name.c_str()); }); |
| |
| char** result = Function(uevent); |
| auto result_freer = android::base::make_scope_guard([result]() { |
| if (result) { |
| for (int i = 0; result[i]; i++) { |
| free(result[i]); |
| } |
| free(result); |
| } |
| }); |
| |
| auto expected_size = expected_links.size(); |
| if (expected_size == 0) { |
| ASSERT_EQ(nullptr, result); |
| } else { |
| ASSERT_NE(nullptr, result); |
| // First assert size is equal, so we don't overrun expected_links |
| unsigned int size = 0; |
| while (result[size]) ++size; |
| ASSERT_EQ(expected_size, size); |
| |
| for (unsigned int i = 0; i < size; ++i) { |
| EXPECT_EQ(expected_links[i], result[i]); |
| } |
| } |
| } |
| |
| TEST(devices, get_character_device_symlinks_success) { |
| const char* platform_device = "/devices/platform/some_device_name"; |
| uevent uevent = { |
| .path = "/devices/platform/some_device_name/usb/usb_device/name/tty2-1:1.0", |
| .subsystem = "tty", |
| }; |
| std::vector<std::string> expected_result{"/dev/usb/ttyname"}; |
| |
| test_get_symlinks<get_character_device_symlinks>(platform_device, &uevent, expected_result); |
| } |
| |
| TEST(devices, get_character_device_symlinks_no_pdev_match) { |
| const char* platform_device = "/devices/platform/some_device_name"; |
| uevent uevent = { |
| .path = "/device/name/tty2-1:1.0", .subsystem = "tty", |
| }; |
| std::vector<std::string> expected_result; |
| |
| test_get_symlinks<get_character_device_symlinks>(platform_device, &uevent, expected_result); |
| } |
| |
| TEST(devices, get_character_device_symlinks_nothing_after_platform_device) { |
| const char* platform_device = "/devices/platform/some_device_name"; |
| uevent uevent = { |
| .path = "/devices/platform/some_device_name", .subsystem = "tty", |
| }; |
| std::vector<std::string> expected_result; |
| |
| test_get_symlinks<get_character_device_symlinks>(platform_device, &uevent, expected_result); |
| } |
| |
| TEST(devices, get_character_device_symlinks_no_usb_found) { |
| const char* platform_device = "/devices/platform/some_device_name"; |
| uevent uevent = { |
| .path = "/devices/platform/some_device_name/bad/bad/", .subsystem = "tty", |
| }; |
| std::vector<std::string> expected_result; |
| |
| test_get_symlinks<get_character_device_symlinks>(platform_device, &uevent, expected_result); |
| } |
| |
| TEST(devices, get_character_device_symlinks_no_roothub) { |
| const char* platform_device = "/devices/platform/some_device_name"; |
| uevent uevent = { |
| .path = "/devices/platform/some_device_name/usb/", .subsystem = "tty", |
| }; |
| std::vector<std::string> expected_result; |
| |
| test_get_symlinks<get_character_device_symlinks>(platform_device, &uevent, expected_result); |
| } |
| |
| TEST(devices, get_character_device_symlinks_no_usb_device) { |
| const char* platform_device = "/devices/platform/some_device_name"; |
| uevent uevent = { |
| .path = "/devices/platform/some_device_name/usb/usb_device/", .subsystem = "tty", |
| }; |
| std::vector<std::string> expected_result; |
| |
| test_get_symlinks<get_character_device_symlinks>(platform_device, &uevent, expected_result); |
| } |
| |
| TEST(devices, get_character_device_symlinks_no_final_slash) { |
| const char* platform_device = "/devices/platform/some_device_name"; |
| uevent uevent = { |
| .path = "/devices/platform/some_device_name/usb/usb_device/name", .subsystem = "tty", |
| }; |
| std::vector<std::string> expected_result; |
| |
| test_get_symlinks<get_character_device_symlinks>(platform_device, &uevent, expected_result); |
| } |
| |
| TEST(devices, get_character_device_symlinks_no_final_name) { |
| const char* platform_device = "/devices/platform/some_device_name"; |
| uevent uevent = { |
| .path = "/devices/platform/some_device_name/usb/usb_device//", .subsystem = "tty", |
| }; |
| std::vector<std::string> expected_result; |
| |
| test_get_symlinks<get_character_device_symlinks>(platform_device, &uevent, expected_result); |
| } |
| |
| TEST(devices, get_block_device_symlinks_success_platform) { |
| // These are actual paths from bullhead |
| const char* platform_device = "/devices/soc.0/f9824900.sdhci"; |
| uevent uevent = { |
| .path = "/devices/soc.0/f9824900.sdhci/mmc_host/mmc0/mmc0:0001/block/mmcblk0", |
| .partition_name = nullptr, |
| .partition_num = -1, |
| }; |
| std::vector<std::string> expected_result{"/dev/block/platform/soc.0/f9824900.sdhci/mmcblk0"}; |
| |
| test_get_symlinks<get_block_device_symlinks>(platform_device, &uevent, expected_result); |
| } |
| |
| TEST(devices, get_block_device_symlinks_success_platform_with_partition) { |
| // These are actual paths from bullhead |
| const char* platform_device = "/devices/soc.0/f9824900.sdhci"; |
| uevent uevent = { |
| .path = "/devices/soc.0/f9824900.sdhci/mmc_host/mmc0/mmc0:0001/block/mmcblk0p1", |
| .partition_name = "modem", |
| .partition_num = 1, |
| }; |
| std::vector<std::string> expected_result{ |
| "/dev/block/platform/soc.0/f9824900.sdhci/by-name/modem", |
| "/dev/block/platform/soc.0/f9824900.sdhci/by-num/p1", |
| "/dev/block/platform/soc.0/f9824900.sdhci/mmcblk0p1", |
| }; |
| |
| test_get_symlinks<get_block_device_symlinks>(platform_device, &uevent, expected_result); |
| } |
| |
| TEST(devices, get_block_device_symlinks_success_platform_with_partition_only_num) { |
| const char* platform_device = "/devices/soc.0/f9824900.sdhci"; |
| uevent uevent = { |
| .path = "/devices/soc.0/f9824900.sdhci/mmc_host/mmc0/mmc0:0001/block/mmcblk0p1", |
| .partition_name = nullptr, |
| .partition_num = 1, |
| }; |
| std::vector<std::string> expected_result{ |
| "/dev/block/platform/soc.0/f9824900.sdhci/by-num/p1", |
| "/dev/block/platform/soc.0/f9824900.sdhci/mmcblk0p1", |
| }; |
| |
| test_get_symlinks<get_block_device_symlinks>(platform_device, &uevent, expected_result); |
| } |
| |
| TEST(devices, get_block_device_symlinks_success_platform_with_partition_only_name) { |
| const char* platform_device = "/devices/soc.0/f9824900.sdhci"; |
| uevent uevent = { |
| .path = "/devices/soc.0/f9824900.sdhci/mmc_host/mmc0/mmc0:0001/block/mmcblk0p1", |
| .partition_name = "modem", |
| .partition_num = -1, |
| }; |
| std::vector<std::string> expected_result{ |
| "/dev/block/platform/soc.0/f9824900.sdhci/by-name/modem", |
| "/dev/block/platform/soc.0/f9824900.sdhci/mmcblk0p1", |
| }; |
| |
| test_get_symlinks<get_block_device_symlinks>(platform_device, &uevent, expected_result); |
| } |
| |
| TEST(devices, get_block_device_symlinks_success_pci) { |
| const char* platform_device = "/devices/do/not/match"; |
| uevent uevent = { |
| .path = "/devices/pci0000:00/0000:00:1f.2/mmcblk0", |
| .partition_name = nullptr, |
| .partition_num = -1, |
| }; |
| std::vector<std::string> expected_result{"/dev/block/pci/pci0000:00/0000:00:1f.2/mmcblk0"}; |
| |
| test_get_symlinks<get_block_device_symlinks>(platform_device, &uevent, expected_result); |
| } |
| |
| TEST(devices, get_block_device_symlinks_success_vbd) { |
| const char* platform_device = "/devices/do/not/match"; |
| uevent uevent = { |
| .path = "/devices/vbd-1234/mmcblk0", .partition_name = nullptr, .partition_num = -1, |
| }; |
| std::vector<std::string> expected_result{"/dev/block/vbd/1234/mmcblk0"}; |
| |
| test_get_symlinks<get_block_device_symlinks>(platform_device, &uevent, expected_result); |
| } |
| |
| TEST(devices, get_block_device_symlinks_no_matches) { |
| const char* platform_device = "/devices/soc.0/f9824900.sdhci"; |
| uevent uevent = { |
| .path = "/devices/soc.0/not_the_device/mmc_host/mmc0/mmc0:0001/block/mmcblk0p1", |
| .partition_name = nullptr, |
| .partition_num = -1, |
| }; |
| std::vector<std::string> expected_result; |
| |
| test_get_symlinks<get_block_device_symlinks>(platform_device, &uevent, expected_result); |
| } |
| |
| TEST(devices, sanitize_null) { |
| sanitize_partition_name(nullptr); |
| } |
| |
| TEST(devices, sanitize_empty) { |
| std::string empty; |
| sanitize_partition_name(&empty[0]); |
| EXPECT_EQ(0u, empty.size()); |
| } |
| |
| TEST(devices, sanitize_allgood) { |
| std::string good = |
| "abcdefghijklmnopqrstuvwxyz" |
| "ABCDEFGHIJKLMNOPQRSTUVWXYZ" |
| "0123456789" |
| "_-."; |
| std::string good_copy = good; |
| sanitize_partition_name(&good[0]); |
| EXPECT_EQ(good_copy, good); |
| } |
| |
| TEST(devices, sanitize_somebad) { |
| std::string string = "abc!@#$%^&*()"; |
| sanitize_partition_name(&string[0]); |
| EXPECT_EQ("abc__________", string); |
| } |
| |
| TEST(devices, sanitize_allbad) { |
| std::string string = "!@#$%^&*()"; |
| sanitize_partition_name(&string[0]); |
| EXPECT_EQ("__________", string); |
| } |
| |
| TEST(devices, sanitize_onebad) { |
| std::string string = ")"; |
| sanitize_partition_name(&string[0]); |
| EXPECT_EQ("_", string); |
| } |