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u-boot/lib/efi_selftest/efi_selftest_devicepath_util.c
Tom Rini 83d290c56f SPDX: Convert all of our single license tags to Linux Kernel style 
When U-Boot started using SPDX tags we were among the early adopters and
there weren't a lot of other examples to borrow from.  So we picked the
area of the file that usually had a full license text and replaced it
with an appropriate SPDX-License-Identifier: entry.  Since then, the
Linux Kernel has adopted SPDX tags and they place it as the very first
line in a file (except where shebangs are used, then it's second line)
and with slightly different comment styles than us.

In part due to community overlap, in part due to better tag visibility
and in part for other minor reasons, switch over to that style.

This commit changes all instances where we have a single declared
license in the tag as both the before and after are identical in tag
contents.  There's also a few places where I found we did not have a tag
and have introduced one.

Signed-off-by: Tom Rini <trini@konsulko.com>
2018-05-07 09:34:12 -04:00

285 lines
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// SPDX-License-Identifier: GPL-2.0+
/*
* efi_selftest_devicepath_util
*
* Copyright (c) 2018 Heinrich Schuchardt <xypron.glpk@gmx.de>
*
* This unit test checks the device path utilities protocol.
*/
#include <efi_selftest.h>
static struct efi_boot_services *boottime;
static efi_guid_t guid_device_path_utilities_protocol =
EFI_DEVICE_PATH_UTILITIES_PROTOCOL_GUID;
struct efi_device_path_utilities_protocol *dpu;
/*
* Setup unit test.
*
* Locate the device path utilities protocol.
*
* @handle: handle of the loaded image
* @systable: system table
*/
static int setup(const efi_handle_t img_handle,
const struct efi_system_table *systable)
{
int ret;
boottime = systable->boottime;
ret = boottime->locate_protocol(&guid_device_path_utilities_protocol,
NULL, (void **)&dpu);
if (ret != EFI_SUCCESS) {
dpu = NULL;
efi_st_error(
"Device path to text protocol is not available.\n");
return EFI_ST_FAILURE;
}
return EFI_ST_SUCCESS;
}
/*
* Create a device path consisting of a single media device node followed by an
* end node.
*
* @length: length of the media device node
* @dp: device path
* @return: status code
*/
static int create_single_node_device_path(unsigned int length,
struct efi_device_path **dp)
{
struct efi_device_path *node;
efi_uintn_t len;
int ret;
node = dpu->create_device_node(DEVICE_PATH_TYPE_MEDIA_DEVICE,
DEVICE_PATH_SUB_TYPE_FILE_PATH, length);
if (!node) {
efi_st_error("CreateDeviceNode failed\n");
return EFI_ST_FAILURE;
}
*dp = dpu->append_device_node(NULL, node);
if (!*dp) {
efi_st_error("AppendDeviceNode failed\n");
return EFI_ST_FAILURE;
}
ret = boottime->free_pool(node);
if (ret != EFI_ST_SUCCESS) {
efi_st_error("FreePool failed\n");
return EFI_ST_FAILURE;
}
len = dpu->get_device_path_size(*dp);
if (len != length + 4) {
efi_st_error("Wrong device path length %u, expected %u\n",
(unsigned int)len, length);
return EFI_ST_FAILURE;
}
return EFI_ST_SUCCESS;
}
/*
* Execute unit test.
*
* In the test device paths are created, copied, and concatenated. The device
* path length is used as a measure of success.
*/
static int execute(void)
{
struct efi_device_path *dp1;
struct efi_device_path *dp2;
struct efi_device_path *dp3;
efi_uintn_t len;
int ret;
/* IsDevicePathMultiInstance(NULL) */
if (dpu->is_device_path_multi_instance(NULL)) {
efi_st_error("IsDevicePathMultiInstance(NULL) returned true\n");
return EFI_ST_FAILURE;
}
/* GetDevicePathSize(NULL) */
len = dpu->get_device_path_size(NULL);
if (len) {
efi_st_error("Wrong device path length %u, expected 0\n",
(unsigned int)len);
return EFI_ST_FAILURE;
}
/* DuplicateDevicePath(NULL) */
dp1 = dpu->duplicate_device_path(NULL);
if (dp1) {
efi_st_error("DuplicateDevicePath(NULL) failed\n");
return EFI_ST_FAILURE;
}
/* AppendDevicePath(NULL, NULL) */
dp1 = dpu->append_device_path(NULL, NULL);
if (!dp1) {
efi_st_error("AppendDevicePath(NULL, NULL) failed\n");
return EFI_ST_FAILURE;
}
len = dpu->get_device_path_size(dp1);
if (len != 4) {
efi_st_error("Wrong device path length %u, expected 4\n",
(unsigned int)len);
return EFI_ST_FAILURE;
}
ret = boottime->free_pool(dp1);
if (ret != EFI_ST_SUCCESS) {
efi_st_error("FreePool failed\n");
return EFI_ST_FAILURE;
}
/* CreateDeviceNode */
ret = create_single_node_device_path(21, &dp1);
if (ret != EFI_ST_SUCCESS)
return ret;
ret = create_single_node_device_path(17, &dp2);
if (ret != EFI_ST_SUCCESS)
return ret;
/* AppendDevicePath */
dp3 = dpu->append_device_path(dp1, dp2);
if (!dp3) {
efi_st_error("AppendDevicePath failed\n");
return EFI_ST_FAILURE;
}
if (dp3 == dp1 || dp3 == dp2) {
efi_st_error("AppendDevicePath reused buffer\n");
return EFI_ST_FAILURE;
}
len = dpu->get_device_path_size(dp3);
/* 21 + 17 + 4 */
if (len != 42) {
efi_st_error("Wrong device path length %u, expected 42\n",
(unsigned int)len);
return EFI_ST_FAILURE;
}
ret = boottime->free_pool(dp2);
if (ret != EFI_ST_SUCCESS) {
efi_st_error("FreePool failed\n");
return EFI_ST_FAILURE;
}
/* AppendDeviceNode */
dp2 = dpu->append_device_node(dp1, dp3);
if (!dp2) {
efi_st_error("AppendDevicePath failed\n");
return EFI_ST_FAILURE;
}
len = dpu->get_device_path_size(dp2);
/* 21 + 21 + 4 */
if (len != 46) {
printf("%s(%d) %s\n", __FILE__, __LINE__, __func__);
efi_st_error("Wrong device path length %u, expected 46\n",
(unsigned int)len);
return EFI_ST_FAILURE;
}
ret = boottime->free_pool(dp1);
if (ret != EFI_ST_SUCCESS) {
efi_st_error("FreePool failed\n");
return EFI_ST_FAILURE;
}
/* IsDevicePathMultiInstance */
if (dpu->is_device_path_multi_instance(dp2)) {
printf("%s(%d) %s\n", __FILE__, __LINE__, __func__);
efi_st_error("IsDevicePathMultiInstance returned true\n");
return EFI_ST_FAILURE;
}
/* AppendDevicePathInstance */
dp1 = dpu->append_device_path_instance(dp2, dp3);
if (!dp1) {
efi_st_error("AppendDevicePathInstance failed\n");
return EFI_ST_FAILURE;
}
len = dpu->get_device_path_size(dp1);
/* 46 + 42 */
if (len != 88) {
efi_st_error("Wrong device path length %u, expected 88\n",
(unsigned int)len);
return EFI_ST_FAILURE;
}
/* IsDevicePathMultiInstance */
if (!dpu->is_device_path_multi_instance(dp1)) {
efi_st_error("IsDevicePathMultiInstance returned false\n");
return EFI_ST_FAILURE;
}
ret = boottime->free_pool(dp2);
if (ret != EFI_ST_SUCCESS) {
efi_st_error("FreePool failed\n");
return EFI_ST_FAILURE;
}
ret = boottime->free_pool(dp3);
if (ret != EFI_ST_SUCCESS) {
efi_st_error("FreePool failed\n");
return EFI_ST_FAILURE;
}
/* GetNextDevicePathInstance */
dp3 = dp1;
dp2 = dpu->get_next_device_path_instance(&dp1, &len);
if (!dp2) {
efi_st_error("GetNextDevicePathInstance failed\n");
return EFI_ST_FAILURE;
}
if (!dp1) {
efi_st_error("GetNextDevicePathInstance no 2nd instance\n");
return EFI_ST_FAILURE;
}
if (len != 46) {
efi_st_error("Wrong device path length %u, expected 46\n",
(unsigned int)len);
return EFI_ST_FAILURE;
}
len = dpu->get_device_path_size(dp1);
if (len != 42) {
efi_st_error("Wrong device path length %u, expected 42\n",
(unsigned int)len);
return EFI_ST_FAILURE;
}
ret = boottime->free_pool(dp2);
if (ret != EFI_ST_SUCCESS) {
efi_st_error("FreePool failed\n");
return EFI_ST_FAILURE;
}
dp2 = dpu->get_next_device_path_instance(&dp1, &len);
if (!dp2) {
efi_st_error("GetNextDevicePathInstance failed\n");
return EFI_ST_FAILURE;
}
if (len != 42) {
efi_st_error("Wrong device path length %u, expected 46\n",
(unsigned int)len);
return EFI_ST_FAILURE;
}
if (dp1) {
efi_st_error("GetNextDevicePathInstance did not signal end\n");
return EFI_ST_FAILURE;
}
ret = boottime->free_pool(dp2);
if (ret != EFI_ST_SUCCESS) {
efi_st_error("FreePool failed\n");
return EFI_ST_FAILURE;
}
/* Clean up */
ret = boottime->free_pool(dp2);
if (ret != EFI_ST_SUCCESS) {
efi_st_error("FreePool failed\n");
return EFI_ST_FAILURE;
}
ret = boottime->free_pool(dp3);
if (ret != EFI_ST_SUCCESS) {
efi_st_error("FreePool failed\n");
return EFI_ST_FAILURE;
}
return EFI_ST_SUCCESS;
}
EFI_UNIT_TEST(dputil) = {
.name = "device path utilities protocol",
.phase = EFI_EXECUTE_BEFORE_BOOTTIME_EXIT,
.setup = setup,
.execute = execute,
};
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