efi_selftest: unit test for variable services
Provide a unit test for variable services.
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
diff --git a/lib/efi_selftest/Makefile b/lib/efi_selftest/Makefile
index 80c4302..2b943bc 100644
--- a/lib/efi_selftest/Makefile
+++ b/lib/efi_selftest/Makefile
@@ -28,6 +28,7 @@
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 0000000..f5e8eb6
--- /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,
+};