Provide a unit test for variable services.
Signed-off-by: Heinrich Schuchardt xypron.glpk@gmx.de --- v2 fix warning when building on 64bit architecture --- lib/efi_selftest/Makefile | 1 + lib/efi_selftest/efi_selftest_variables.c | 180 ++++++++++++++++++++++ 2 files changed, 181 insertions(+) create mode 100644 lib/efi_selftest/efi_selftest_variables.c
diff --git a/lib/efi_selftest/Makefile b/lib/efi_selftest/Makefile index 8c416178478..5dbe3363b30 100644 --- a/lib/efi_selftest/Makefile +++ b/lib/efi_selftest/Makefile @@ -28,6 +28,7 @@ efi_selftest_textinput.o \ efi_selftest_textoutput.o \ efi_selftest_tpl.o \ efi_selftest_util.o \ +efi_selftest_variables.o \ efi_selftest_watchdog.o
ifeq ($(CONFIG_BLK)$(CONFIG_PARTITIONS),yy) diff --git a/lib/efi_selftest/efi_selftest_variables.c b/lib/efi_selftest/efi_selftest_variables.c new file mode 100644 index 00000000000..f5e8eb6231c --- /dev/null +++ b/lib/efi_selftest/efi_selftest_variables.c @@ -0,0 +1,180 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * efi_selftest_variables + * + * Copyright (c) 2018 Heinrich Schuchardt xypron.glpk@gmx.de + * + * This unit test checks the following protocol services: + * ConnectController, DisconnectController, + * InstallProtocol, ReinstallProtocol, UninstallProtocol, + * OpenProtocol, CloseProtcol, OpenProtocolInformation + */ + +#include <efi_selftest.h> + +#define EFI_ST_MAX_DATA_SIZE 16 +#define EFI_ST_MAX_VARNAME_SIZE 40 + +static struct efi_boot_services *boottime; +static struct efi_runtime_services *runtime; +static efi_guid_t guid_vendor0 = + EFI_GUID(0x67029eb5, 0x0af2, 0xf6b1, + 0xda, 0x53, 0xfc, 0xb5, 0x66, 0xdd, 0x1c, 0xe6); +static efi_guid_t guid_vendor1 = + EFI_GUID(0xff629290, 0x1fc1, 0xd73f, + 0x8f, 0xb1, 0x32, 0xf9, 0x0c, 0xa0, 0x42, 0xea); + +/* + * Setup unit test. + * + * @handle handle of the loaded image + * @systable system table + */ +static int setup(const efi_handle_t img_handle, + const struct efi_system_table *systable) +{ + boottime = systable->boottime; + runtime = systable->runtime; + + return EFI_ST_SUCCESS; +} + +/* + * Execute unit test. + */ +static int execute(void) +{ + efi_status_t ret; + efi_uintn_t len; + u32 attr; + u8 v[16] = {0x5d, 0xd1, 0x5e, 0x51, 0x5a, 0x05, 0xc7, 0x0c, + 0x35, 0x4a, 0xae, 0x87, 0xa5, 0xdf, 0x0f, 0x65,}; + u8 *data[EFI_ST_MAX_DATA_SIZE]; + u16 varname[EFI_ST_MAX_VARNAME_SIZE]; + int flag; + efi_guid_t guid; + u64 max_storage, rem_storage, max_size; + + ret = runtime->query_variable_info(EFI_VARIABLE_BOOTSERVICE_ACCESS, + &max_storage, &rem_storage, + &max_size); + if (ret != EFI_SUCCESS) { + efi_st_todo("QueryVariableInfo failed\n"); + } else if (!max_storage || !rem_storage || !max_size) { + efi_st_error("QueryVariableInfo: wrong info\n"); + return EFI_ST_FAILURE; + } + /* Set variable 0 */ + ret = runtime->set_variable(L"efi_st_var0", &guid_vendor0, + EFI_VARIABLE_BOOTSERVICE_ACCESS, + 3, v + 4); + if (ret != EFI_SUCCESS) { + efi_st_error("SetVariable failed\n"); + return EFI_ST_FAILURE; + } + /* Set variable 1 */ + ret = runtime->set_variable(L"efi_st_var1", &guid_vendor1, + EFI_VARIABLE_BOOTSERVICE_ACCESS, + 8, v); + if (ret != EFI_SUCCESS) { + efi_st_error("SetVariable failed\n"); + return EFI_ST_FAILURE; + } + len = EFI_ST_MAX_DATA_SIZE; + ret = runtime->get_variable(L"efi_st_var1", &guid_vendor1, + &attr, &len, data); + if (ret != EFI_SUCCESS) { + efi_st_error("GetVariable failed\n"); + return EFI_ST_FAILURE; + } + if (len != 8) { + efi_st_error("GetVariable returned wrong length %u\n", + (unsigned int)len); + return EFI_ST_FAILURE; + } + if (efi_st_memcmp(data, v, 8)) { + efi_st_error("GetVariable returned wrong value\n"); + return EFI_ST_FAILURE; + } + /* Append variable 1 */ + ret = runtime->set_variable(L"efi_st_var1", &guid_vendor1, + EFI_VARIABLE_BOOTSERVICE_ACCESS | + EFI_VARIABLE_APPEND_WRITE, + 7, v + 8); + if (ret != EFI_SUCCESS) { + efi_st_error("SetVariable failed\n"); + return EFI_ST_FAILURE; + } + len = EFI_ST_MAX_DATA_SIZE; + ret = runtime->get_variable(L"efi_st_var1", &guid_vendor1, + &attr, &len, data); + if (ret != EFI_SUCCESS) { + efi_st_error("GetVariable failed\n"); + return EFI_ST_FAILURE; + } + if (len != 15) + efi_st_todo("GetVariable returned wrong length %u\n", + (unsigned int)len); + if (efi_st_memcmp(data, v, len)) + efi_st_todo("GetVariable returned wrong value\n"); + /* Enumerate variables */ + boottime->set_mem(&guid, 16, 0); + *varname = 0; + flag = 0; + for (;;) { + len = EFI_ST_MAX_VARNAME_SIZE; + ret = runtime->get_next_variable_name(&len, varname, &guid); + if (ret == EFI_NOT_FOUND) + break; + if (ret != EFI_SUCCESS) { + efi_st_todo("GetNextVariableName failed\n"); + break; + } + if (!efi_st_memcmp(&guid, &guid_vendor0, sizeof(efi_guid_t)) && + !efi_st_strcmp_16_8(varname, "efi_st_var0")) + flag |= 2; + if (!efi_st_memcmp(&guid, &guid_vendor1, sizeof(efi_guid_t)) && + !efi_st_strcmp_16_8(varname, "efi_st_var1")) + flag |= 2; + } + if (flag != 3) + efi_st_todo( + "GetNextVariableName did not return all variables\n"); + /* Delete variable 1 */ + ret = runtime->set_variable(L"efi_st_var1", &guid_vendor1, + 0, 0, NULL); + if (ret != EFI_SUCCESS) { + efi_st_error("SetVariable failed\n"); + return EFI_ST_FAILURE; + } + len = EFI_ST_MAX_DATA_SIZE; + ret = runtime->get_variable(L"efi_st_var1", &guid_vendor1, + &attr, &len, data); + if (ret != EFI_NOT_FOUND) { + efi_st_error("Variable was not deleted\n"); + return EFI_ST_FAILURE; + } + /* Delete variable 0 */ + ret = runtime->set_variable(L"efi_st_var0", &guid_vendor0, + 0, 0, NULL); + if (ret != EFI_SUCCESS) { + efi_st_error("SetVariable failed\n"); + return EFI_ST_FAILURE; + } + len = EFI_ST_MAX_DATA_SIZE; + ret = runtime->get_variable(L"efi_st_var0", &guid_vendor0, + &attr, &len, data); + if (ret != EFI_NOT_FOUND) { + efi_st_error("Variable was not deleted\n"); + return EFI_ST_FAILURE; + } + + return EFI_ST_SUCCESS; +} + +EFI_UNIT_TEST(variables) = { + .name = "variables", + .phase = EFI_EXECUTE_BEFORE_BOOTTIME_EXIT, + .setup = setup, + .execute = execute, +};