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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 | // SPDX-License-Identifier: GPL-2.0+ /* * efi_selftest_open_protocol * * Copyright (c) 2019 Heinrich Schuchardt <xypron.glpk@gmx.de> * * This unit test checks that open protocol information is correctly updated * when calling: * HandleProtocol, OpenProtocol, OpenProtocolInformation, CloseProtocol. */ #include <efi_selftest.h> /* * The test currently does not actually call the interface function. * So this is just a dummy structure. */ struct interface { void (EFIAPI *inc)(void); }; static struct efi_boot_services *boottime; static efi_guid_t guid1 = EFI_GUID(0x492a0e38, 0x1442, 0xf819, 0x14, 0xaa, 0x4b, 0x8d, 0x09, 0xfe, 0x5a, 0xb9); static efi_handle_t handle1; static struct interface interface1; /* * Setup unit test. * * Create a handle and install a protocol interface on it. * * @handle: handle of the loaded image * @systable: system table */ static int setup(const efi_handle_t img_handle, const struct efi_system_table *systable) { efi_status_t ret; boottime = systable->boottime; ret = boottime->install_protocol_interface(&handle1, &guid1, EFI_NATIVE_INTERFACE, &interface1); if (ret != EFI_SUCCESS) { efi_st_error("InstallProtocolInterface failed\n"); return EFI_ST_FAILURE; } if (!handle1) { efi_st_error ("InstallProtocolInterface failed to create handle\n"); return EFI_ST_FAILURE; } return EFI_ST_SUCCESS; } /* * Tear down unit test. * */ static int teardown(void) { efi_status_t ret; if (handle1) { ret = boottime->uninstall_protocol_interface(handle1, &guid1, &interface1); if (ret != EFI_SUCCESS) { efi_st_error("UninstallProtocolInterface failed\n"); return EFI_ST_FAILURE; } } return EFI_ST_SUCCESS; } /* * Execute unit test. * * Open the installed protocol twice via HandleProtocol() and once via * OpenProtocol(EFI_OPEN_PROTOCOL_GET_PROTOCOL). Read the open protocol * information and check the open counts. Finally close the protocol and * check again. */ static int execute(void) { void *interface; struct efi_open_protocol_info_entry *entry_buffer; efi_uintn_t entry_count; efi_handle_t firmware_handle; efi_status_t ret; ret = boottime->handle_protocol(handle1, &guid1, &interface); if (ret != EFI_SUCCESS) { efi_st_error("HandleProtocol failed\n"); return EFI_ST_FAILURE; } if (interface != &interface1) { efi_st_error("HandleProtocol returned wrong interface\n"); return EFI_ST_FAILURE; } ret = boottime->open_protocol_information(handle1, &guid1, &entry_buffer, &entry_count); if (ret != EFI_SUCCESS) { efi_st_error("OpenProtocolInformation failed\n"); return EFI_ST_FAILURE; } if (entry_count != 1) { efi_st_error("Incorrect OpenProtocolInformation count\n"); efi_st_printf("Expected 1, got %u\n", (unsigned int)entry_count); return EFI_ST_FAILURE; } ret = boottime->free_pool(entry_buffer); if (ret != EFI_SUCCESS) { efi_st_error("FreePool failed\n"); return EFI_ST_FAILURE; } ret = boottime->handle_protocol(handle1, &guid1, &interface); if (ret != EFI_SUCCESS) { efi_st_error("HandleProtocol failed\n"); return EFI_ST_FAILURE; } ret = boottime->open_protocol_information(handle1, &guid1, &entry_buffer, &entry_count); if (ret != EFI_SUCCESS) { efi_st_error("OpenProtocolInformation failed\n"); return EFI_ST_FAILURE; } if (entry_count != 1) { efi_st_error("Incorrect OpenProtocolInformation count\n"); efi_st_printf("Expected 1, got %u\n", (unsigned int)entry_count); return EFI_ST_FAILURE; } if (entry_buffer[0].open_count != 2) { efi_st_error("Incorrect open count: expected 2 got %u\n", entry_buffer[0].open_count); return EFI_ST_FAILURE; } firmware_handle = entry_buffer[0].agent_handle; ret = boottime->free_pool(entry_buffer); if (ret != EFI_SUCCESS) { efi_st_error("FreePool failed\n"); return EFI_ST_FAILURE; } ret = boottime->open_protocol(handle1, &guid1, &interface, firmware_handle, NULL, EFI_OPEN_PROTOCOL_GET_PROTOCOL); if (ret != EFI_SUCCESS) { efi_st_error("OpenProtocol failed\n"); return EFI_ST_FAILURE; } ret = boottime->open_protocol_information(handle1, &guid1, &entry_buffer, &entry_count); if (ret != EFI_SUCCESS) { efi_st_error("OpenProtocolInformation failed\n"); return EFI_ST_FAILURE; } if (entry_count != 2) { efi_st_error("Incorrect OpenProtocolInformation count\n"); efi_st_printf("Expected 2, got %u\n", (unsigned int)entry_count); return EFI_ST_FAILURE; } if (entry_buffer[0].open_count + entry_buffer[1].open_count != 3) { efi_st_error("Incorrect open count: expected 3 got %u\n", entry_buffer[0].open_count + entry_buffer[1].open_count); return EFI_ST_FAILURE; } ret = boottime->free_pool(entry_buffer); if (ret != EFI_SUCCESS) { efi_st_error("FreePool failed\n"); return EFI_ST_FAILURE; } ret = boottime->close_protocol(handle1, &guid1, firmware_handle, NULL); if (ret != EFI_SUCCESS) { efi_st_error("CloseProtocol failed\n"); return EFI_ST_FAILURE; } ret = boottime->open_protocol_information(handle1, &guid1, &entry_buffer, &entry_count); if (ret != EFI_SUCCESS) { efi_st_error("OpenProtocolInformation failed\n"); return EFI_ST_FAILURE; } if (entry_count) { efi_st_error("Incorrect OpenProtocolInformation count\n"); efi_st_printf("Expected 0, got %u\n", (unsigned int)entry_count); return EFI_ST_FAILURE; } return EFI_ST_SUCCESS; } EFI_UNIT_TEST(openprot) = { .name = "open protocol", .phase = EFI_EXECUTE_BEFORE_BOOTTIME_EXIT, .setup = setup, .execute = execute, .teardown = teardown, }; |