403 lines
11 KiB
C
403 lines
11 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* efi_selftest_devicepath
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*
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* Copyright (c) 2017 Heinrich Schuchardt <xypron.glpk@gmx.de>
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*
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* This unit test checks the following protocol services:
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* DevicePathToText
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*/
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#include <efi_selftest.h>
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static struct efi_boot_services *boottime;
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static efi_handle_t handle1;
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static efi_handle_t handle2;
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static efi_handle_t handle3;
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struct interface {
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void (EFIAPI * inc)(void);
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} interface;
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static efi_guid_t guid_device_path = DEVICE_PATH_GUID;
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static efi_guid_t guid_device_path_to_text_protocol =
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EFI_DEVICE_PATH_TO_TEXT_PROTOCOL_GUID;
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static efi_guid_t guid_protocol =
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EFI_GUID(0xdbca4c98, 0x6cb0, 0x694d,
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0x08, 0x72, 0x81, 0x9c, 0x65, 0x0c, 0xbb, 0x7d);
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static efi_guid_t guid_vendor1 =
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EFI_GUID(0xdbca4c98, 0x6cb0, 0x694d,
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0x08, 0x72, 0x81, 0x9c, 0x65, 0x0c, 0xbb, 0xb1);
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static efi_guid_t guid_vendor2 =
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EFI_GUID(0xdbca4c98, 0x6cb0, 0x694d,
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0x08, 0x72, 0x81, 0x9c, 0x65, 0x0c, 0xbb, 0xa2);
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static efi_guid_t guid_vendor3 =
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EFI_GUID(0xdbca4c98, 0x6cb0, 0x694d,
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0x08, 0x72, 0x81, 0x9c, 0x65, 0x0c, 0xbb, 0xc3);
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static u8 *dp1;
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static u8 *dp2;
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static u8 *dp3;
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struct efi_device_path_to_text_protocol *device_path_to_text;
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/*
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* Setup unit test.
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*
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* Create three handles. Install a new protocol on two of them and
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* provide device paths.
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*
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* handle1
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* guid interface
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* handle2
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* guid interface
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* handle3
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*
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* @handle: handle of the loaded image
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* @systable: system table
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*/
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static int setup(const efi_handle_t img_handle,
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const struct efi_system_table *systable)
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{
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struct efi_device_path_vendor vendor_node;
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struct efi_device_path end_node;
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efi_status_t ret;
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boottime = systable->boottime;
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ret = boottime->locate_protocol(&guid_device_path_to_text_protocol,
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NULL, (void **)&device_path_to_text);
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if (ret != EFI_SUCCESS) {
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device_path_to_text = NULL;
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efi_st_error(
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"Device path to text protocol is not available.\n");
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return EFI_ST_FAILURE;
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}
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ret = boottime->allocate_pool(EFI_LOADER_DATA,
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sizeof(struct efi_device_path_vendor) +
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sizeof(struct efi_device_path),
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(void **)&dp1);
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if (ret != EFI_SUCCESS)
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goto out_of_memory;
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ret = boottime->allocate_pool(EFI_LOADER_DATA, 2 *
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sizeof(struct efi_device_path_vendor) +
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sizeof(struct efi_device_path),
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(void **)&dp2);
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if (ret != EFI_SUCCESS)
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goto out_of_memory;
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ret = boottime->allocate_pool(EFI_LOADER_DATA, 3 *
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sizeof(struct efi_device_path_vendor) +
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sizeof(struct efi_device_path),
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(void **)&dp3);
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if (ret != EFI_SUCCESS)
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goto out_of_memory;
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vendor_node.dp.type = DEVICE_PATH_TYPE_HARDWARE_DEVICE;
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vendor_node.dp.sub_type = DEVICE_PATH_SUB_TYPE_VENDOR;
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vendor_node.dp.length = sizeof(struct efi_device_path_vendor);
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boottime->copy_mem(&vendor_node.guid, &guid_vendor1,
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sizeof(efi_guid_t));
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boottime->copy_mem(dp1, &vendor_node,
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sizeof(struct efi_device_path_vendor));
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boottime->copy_mem(dp2, &vendor_node,
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sizeof(struct efi_device_path_vendor));
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boottime->copy_mem(dp3, &vendor_node,
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sizeof(struct efi_device_path_vendor));
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boottime->copy_mem(&vendor_node.guid, &guid_vendor2,
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sizeof(efi_guid_t));
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boottime->copy_mem(dp2 + sizeof(struct efi_device_path_vendor),
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&vendor_node, sizeof(struct efi_device_path_vendor));
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boottime->copy_mem(dp3 + sizeof(struct efi_device_path_vendor),
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&vendor_node, sizeof(struct efi_device_path_vendor));
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boottime->copy_mem(&vendor_node.guid, &guid_vendor3,
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sizeof(efi_guid_t));
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boottime->copy_mem(dp3 + 2 * sizeof(struct efi_device_path_vendor),
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&vendor_node, sizeof(struct efi_device_path_vendor));
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end_node.type = DEVICE_PATH_TYPE_END;
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end_node.sub_type = DEVICE_PATH_SUB_TYPE_END;
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end_node.length = sizeof(struct efi_device_path);
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boottime->copy_mem(dp1 + sizeof(struct efi_device_path_vendor),
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&end_node, sizeof(struct efi_device_path));
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boottime->copy_mem(dp2 + 2 * sizeof(struct efi_device_path_vendor),
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&end_node, sizeof(struct efi_device_path));
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boottime->copy_mem(dp3 + 3 * sizeof(struct efi_device_path_vendor),
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&end_node, sizeof(struct efi_device_path));
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ret = boottime->install_protocol_interface(&handle1,
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&guid_device_path,
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EFI_NATIVE_INTERFACE,
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dp1);
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if (ret != EFI_SUCCESS) {
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efi_st_error("InstallProtocolInterface failed\n");
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return EFI_ST_FAILURE;
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}
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ret = boottime->install_protocol_interface(&handle1,
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&guid_protocol,
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EFI_NATIVE_INTERFACE,
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&interface);
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if (ret != EFI_SUCCESS) {
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efi_st_error("InstallProtocolInterface failed\n");
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return EFI_ST_FAILURE;
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}
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ret = boottime->install_protocol_interface(&handle2,
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&guid_device_path,
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EFI_NATIVE_INTERFACE,
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dp2);
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if (ret != EFI_SUCCESS) {
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efi_st_error("InstallProtocolInterface failed\n");
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return EFI_ST_FAILURE;
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}
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ret = boottime->install_protocol_interface(&handle2,
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&guid_protocol,
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EFI_NATIVE_INTERFACE,
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&interface);
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if (ret != EFI_SUCCESS) {
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efi_st_error("InstallProtocolInterface failed\n");
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return EFI_ST_FAILURE;
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}
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ret = boottime->install_protocol_interface(&handle3,
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&guid_device_path,
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EFI_NATIVE_INTERFACE,
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dp3);
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if (ret != EFI_SUCCESS) {
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efi_st_error("InstallProtocolInterface failed\n");
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return EFI_ST_FAILURE;
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}
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return EFI_ST_SUCCESS;
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out_of_memory:
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efi_st_error("Out of memory\n");
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return EFI_ST_FAILURE;
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}
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/*
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* Tear down unit test.
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*
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*/
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static int teardown(void)
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{
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efi_status_t ret;
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ret = boottime->uninstall_protocol_interface(handle1,
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&guid_device_path,
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dp1);
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if (ret != EFI_SUCCESS) {
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efi_st_error("UninstallProtocolInterface failed\n");
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return EFI_ST_FAILURE;
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}
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ret = boottime->uninstall_protocol_interface(handle1,
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&guid_protocol,
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&interface);
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if (ret != EFI_SUCCESS) {
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efi_st_error("UninstallProtocolInterface failed\n");
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return EFI_ST_FAILURE;
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}
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ret = boottime->uninstall_protocol_interface(handle2,
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&guid_device_path,
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dp2);
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if (ret != EFI_SUCCESS) {
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efi_st_error("UninstallProtocolInterface failed\n");
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return EFI_ST_FAILURE;
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}
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ret = boottime->uninstall_protocol_interface(handle2,
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&guid_protocol,
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&interface);
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if (ret != EFI_SUCCESS) {
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efi_st_error("UninstallProtocolInterface failed\n");
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return EFI_ST_FAILURE;
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}
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ret = boottime->uninstall_protocol_interface(handle3,
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&guid_device_path,
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dp3);
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if (ret != EFI_SUCCESS) {
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efi_st_error("UninstallProtocolInterface failed\n");
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return EFI_ST_FAILURE;
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}
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if (dp1) {
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ret = boottime->free_pool(dp1);
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if (ret != EFI_SUCCESS) {
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efi_st_error("FreePool failed\n");
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return EFI_ST_FAILURE;
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}
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}
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if (dp2) {
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ret = boottime->free_pool(dp2);
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if (ret != EFI_SUCCESS) {
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efi_st_error("FreePool failed\n");
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return EFI_ST_FAILURE;
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}
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}
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if (dp3) {
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ret = boottime->free_pool(dp3);
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if (ret != EFI_SUCCESS) {
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efi_st_error("FreePool failed\n");
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return EFI_ST_FAILURE;
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}
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}
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return EFI_ST_SUCCESS;
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}
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/*
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* Execute unit test.
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*
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*/
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static int execute(void)
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{
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struct efi_device_path *remaining_dp;
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efi_handle_t handle;
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/*
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* This device path node ends with the letter 't' of 'u-boot'.
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* The following '.bin' does not belong to the node but is
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* helps to test the correct truncation.
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*/
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struct {
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struct efi_device_path dp;
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u16 text[12];
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} __packed dp_node = {
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{ DEVICE_PATH_TYPE_MEDIA_DEVICE,
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DEVICE_PATH_SUB_TYPE_FILE_PATH,
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sizeof(struct efi_device_path) + 12},
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L"u-boot.bin",
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};
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u16 *string;
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efi_status_t ret;
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efi_uintn_t i, no_handles;
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efi_handle_t *handles;
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struct efi_device_path *dp;
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/* Display all available device paths */
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ret = boottime->locate_handle_buffer(BY_PROTOCOL,
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&guid_device_path,
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NULL, &no_handles, &handles);
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if (ret != EFI_SUCCESS) {
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efi_st_error("Cannot retrieve device path protocols.\n");
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return EFI_ST_FAILURE;
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}
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efi_st_printf("Installed device path protocols:\n");
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for (i = 0; i < no_handles; ++i) {
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ret = boottime->open_protocol(handles[i], &guid_device_path,
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(void **)&dp, NULL, NULL,
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EFI_OPEN_PROTOCOL_GET_PROTOCOL);
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if (ret != EFI_SUCCESS) {
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efi_st_error("Cannot open device path protocol.\n");
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return EFI_ST_FAILURE;
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}
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string = device_path_to_text->convert_device_path_to_text(
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dp, true, false);
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if (!string) {
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efi_st_error("ConvertDevicePathToText failed\n");
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return EFI_ST_FAILURE;
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}
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efi_st_printf("%ps\n", string);
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ret = boottime->free_pool(string);
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if (ret != EFI_SUCCESS) {
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efi_st_error("FreePool failed\n");
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return EFI_ST_FAILURE;
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}
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/*
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* CloseProtocol cannot be called without agent handle.
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* There is no need to close the device path protocol.
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*/
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}
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ret = boottime->free_pool(handles);
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if (ret != EFI_SUCCESS) {
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efi_st_error("FreePool failed\n");
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return EFI_ST_FAILURE;
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}
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/* Test ConvertDevicePathToText */
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string = device_path_to_text->convert_device_path_to_text(
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(struct efi_device_path *)dp2, true, false);
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if (!string) {
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efi_st_error("ConvertDevicePathToText failed\n");
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return EFI_ST_FAILURE;
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}
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if (efi_st_strcmp_16_8(
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string,
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"/VenHw(dbca4c98-6cb0-694d-0872-819c650cbbb1)/VenHw(dbca4c98-6cb0-694d-0872-819c650cbba2)")
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) {
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efi_st_printf("dp2: %ps\n", string);
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efi_st_error("Incorrect text from ConvertDevicePathToText\n");
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return EFI_ST_FAILURE;
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}
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ret = boottime->free_pool(string);
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if (ret != EFI_SUCCESS) {
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efi_st_error("FreePool failed\n");
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return EFI_ST_FAILURE;
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}
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/* Test ConvertDeviceNodeToText */
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string = device_path_to_text->convert_device_node_to_text(
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(struct efi_device_path *)&dp_node, true, false);
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if (!string) {
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efi_st_error("ConvertDeviceNodeToText failed\n");
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return EFI_ST_FAILURE;
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}
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if (efi_st_strcmp_16_8(string, "u-boot")) {
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efi_st_printf("dp_node: %ps\n", string);
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efi_st_error(
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"Incorrect conversion by ConvertDeviceNodeToText\n");
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return EFI_ST_FAILURE;
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}
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ret = boottime->free_pool(string);
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if (ret != EFI_SUCCESS) {
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efi_st_error("FreePool failed\n");
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return EFI_ST_FAILURE;
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}
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/* Test LocateDevicePath */
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remaining_dp = (struct efi_device_path *)dp3;
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ret = boottime->locate_device_path(&guid_protocol, &remaining_dp,
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&handle);
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if (ret != EFI_SUCCESS) {
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efi_st_error("LocateDevicePath failed\n");
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return EFI_ST_FAILURE;
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}
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if (handle != handle2) {
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efi_st_error("LocateDevicePath returned wrong handle\n");
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return EFI_ST_FAILURE;
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}
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string = device_path_to_text->convert_device_path_to_text(remaining_dp,
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true, false);
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if (!string) {
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efi_st_error("ConvertDevicePathToText failed\n");
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return EFI_ST_FAILURE;
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}
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if (efi_st_strcmp_16_8(string,
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"/VenHw(dbca4c98-6cb0-694d-0872-819c650cbbc3)")
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) {
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efi_st_printf("remaining device path: %ps\n", string);
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efi_st_error("LocateDevicePath: wrong remaining device path\n");
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return EFI_ST_FAILURE;
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}
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ret = boottime->free_pool(string);
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if (ret != EFI_SUCCESS) {
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efi_st_error("FreePool failed\n");
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return EFI_ST_FAILURE;
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}
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return EFI_ST_SUCCESS;
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}
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EFI_UNIT_TEST(devicepath) = {
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.name = "device path",
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.phase = EFI_EXECUTE_BEFORE_BOOTTIME_EXIT,
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.setup = setup,
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.execute = execute,
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.teardown = teardown,
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};
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