1 // SPDX-License-Identifier: GPL-2.0+
3 * efi_selftest_variables
5 * Copyright (c) 2018 Heinrich Schuchardt <xypron.glpk@gmx.de>
7 * This unit test checks the following protocol services:
8 * ConnectController, DisconnectController,
9 * InstallProtocol, ReinstallProtocol, UninstallProtocol,
10 * OpenProtocol, CloseProtcol, OpenProtocolInformation
13 #include <efi_selftest.h>
15 #define EFI_ST_MAX_DATA_SIZE 16
16 #define EFI_ST_MAX_VARNAME_SIZE 40
18 static struct efi_boot_services *boottime;
19 static struct efi_runtime_services *runtime;
20 static efi_guid_t guid_vendor0 =
21 EFI_GUID(0x67029eb5, 0x0af2, 0xf6b1,
22 0xda, 0x53, 0xfc, 0xb5, 0x66, 0xdd, 0x1c, 0xe6);
23 static efi_guid_t guid_vendor1 =
24 EFI_GUID(0xff629290, 0x1fc1, 0xd73f,
25 0x8f, 0xb1, 0x32, 0xf9, 0x0c, 0xa0, 0x42, 0xea);
30 * @handle handle of the loaded image
31 * @systable system table
33 static int setup(const efi_handle_t img_handle,
34 const struct efi_system_table *systable)
36 boottime = systable->boottime;
37 runtime = systable->runtime;
39 return EFI_ST_SUCCESS;
45 static int execute(void)
50 u8 v[16] = {0x5d, 0xd1, 0x5e, 0x51, 0x5a, 0x05, 0xc7, 0x0c,
51 0x35, 0x4a, 0xae, 0x87, 0xa5, 0xdf, 0x0f, 0x65,};
52 u8 data[EFI_ST_MAX_DATA_SIZE];
53 u16 varname[EFI_ST_MAX_VARNAME_SIZE];
56 u64 max_storage, rem_storage, max_size;
58 ret = runtime->query_variable_info(EFI_VARIABLE_BOOTSERVICE_ACCESS,
59 &max_storage, &rem_storage,
61 if (ret != EFI_SUCCESS) {
62 efi_st_todo("QueryVariableInfo failed\n");
63 } else if (!max_storage || !rem_storage || !max_size) {
64 efi_st_error("QueryVariableInfo: wrong info\n");
65 return EFI_ST_FAILURE;
68 ret = runtime->set_variable(L"efi_st_var0", &guid_vendor0,
69 EFI_VARIABLE_BOOTSERVICE_ACCESS,
71 if (ret != EFI_SUCCESS) {
72 efi_st_error("SetVariable failed\n");
73 return EFI_ST_FAILURE;
77 ret = runtime->get_variable(L"efi_st_var0", &guid_vendor0,
79 if (ret != EFI_SUCCESS) {
80 efi_st_error("GetVariable failed\n");
81 return EFI_ST_FAILURE;
83 if (efi_st_memcmp(data, v + 4, 3)) {
84 efi_st_error("GetVariable returned wrong value\n");
85 return EFI_ST_FAILURE;
87 if (data[3] != 0xff) {
88 efi_st_error("GetVariable wrote past the end of the buffer\n");
89 return EFI_ST_FAILURE;
92 ret = runtime->set_variable(L"efi_st_var1", &guid_vendor1,
93 EFI_VARIABLE_BOOTSERVICE_ACCESS,
95 if (ret != EFI_SUCCESS) {
96 efi_st_error("SetVariable failed\n");
97 return EFI_ST_FAILURE;
99 len = EFI_ST_MAX_DATA_SIZE;
100 ret = runtime->get_variable(L"efi_st_var1", &guid_vendor1,
102 if (ret != EFI_SUCCESS) {
103 efi_st_error("GetVariable failed\n");
104 return EFI_ST_FAILURE;
107 efi_st_error("GetVariable returned wrong length %u\n",
109 return EFI_ST_FAILURE;
111 if (efi_st_memcmp(data, v, 8)) {
112 efi_st_error("GetVariable returned wrong value\n");
113 return EFI_ST_FAILURE;
115 /* Append variable 1 */
116 ret = runtime->set_variable(L"efi_st_var1", &guid_vendor1,
117 EFI_VARIABLE_BOOTSERVICE_ACCESS |
118 EFI_VARIABLE_APPEND_WRITE,
120 if (ret != EFI_SUCCESS) {
121 efi_st_error("SetVariable failed\n");
122 return EFI_ST_FAILURE;
124 len = EFI_ST_MAX_DATA_SIZE;
125 ret = runtime->get_variable(L"efi_st_var1", &guid_vendor1,
127 if (ret != EFI_SUCCESS) {
128 efi_st_error("GetVariable failed\n");
129 return EFI_ST_FAILURE;
132 efi_st_todo("GetVariable returned wrong length %u\n",
134 if (efi_st_memcmp(data, v, len))
135 efi_st_todo("GetVariable returned wrong value\n");
136 /* Enumerate variables */
137 boottime->set_mem(&guid, 16, 0);
141 len = EFI_ST_MAX_VARNAME_SIZE;
142 ret = runtime->get_next_variable_name(&len, varname, &guid);
143 if (ret == EFI_NOT_FOUND)
145 if (ret != EFI_SUCCESS) {
146 efi_st_todo("GetNextVariableName failed\n");
149 if (!efi_st_memcmp(&guid, &guid_vendor0, sizeof(efi_guid_t)) &&
150 !efi_st_strcmp_16_8(varname, "efi_st_var0"))
152 if (!efi_st_memcmp(&guid, &guid_vendor1, sizeof(efi_guid_t)) &&
153 !efi_st_strcmp_16_8(varname, "efi_st_var1"))
158 "GetNextVariableName did not return all variables\n");
159 /* Delete variable 1 */
160 ret = runtime->set_variable(L"efi_st_var1", &guid_vendor1,
162 if (ret != EFI_SUCCESS) {
163 efi_st_error("SetVariable failed\n");
164 return EFI_ST_FAILURE;
166 len = EFI_ST_MAX_DATA_SIZE;
167 ret = runtime->get_variable(L"efi_st_var1", &guid_vendor1,
169 if (ret != EFI_NOT_FOUND) {
170 efi_st_error("Variable was not deleted\n");
171 return EFI_ST_FAILURE;
173 /* Delete variable 0 */
174 ret = runtime->set_variable(L"efi_st_var0", &guid_vendor0,
176 if (ret != EFI_SUCCESS) {
177 efi_st_error("SetVariable failed\n");
178 return EFI_ST_FAILURE;
180 len = EFI_ST_MAX_DATA_SIZE;
181 ret = runtime->get_variable(L"efi_st_var0", &guid_vendor0,
183 if (ret != EFI_NOT_FOUND) {
184 efi_st_error("Variable was not deleted\n");
185 return EFI_ST_FAILURE;
188 return EFI_ST_SUCCESS;
191 EFI_UNIT_TEST(variables) = {
193 .phase = EFI_EXECUTE_BEFORE_BOOTTIME_EXIT,