2 * EFI device path interface
4 * Copyright (c) 2017 Leif Lindholm
6 * SPDX-License-Identifier: GPL-2.0+
10 #include <efi_loader.h>
12 const efi_guid_t efi_guid_device_path_utilities_protocol =
13 EFI_DEVICE_PATH_UTILITIES_PROTOCOL_GUID;
15 static efi_uintn_t EFIAPI get_device_path_size(
16 const struct efi_device_path *device_path)
20 EFI_ENTRY("%p", device_path);
21 /* size includes the END node: */
23 sz = efi_dp_size(device_path) + sizeof(struct efi_device_path);
27 static struct efi_device_path * EFIAPI duplicate_device_path(
28 const struct efi_device_path *device_path)
30 EFI_ENTRY("%p", device_path);
31 return EFI_EXIT(efi_dp_dup(device_path));
34 static struct efi_device_path * EFIAPI append_device_path(
35 const struct efi_device_path *src1,
36 const struct efi_device_path *src2)
38 EFI_ENTRY("%p, %p", src1, src2);
39 return EFI_EXIT(efi_dp_append(src1, src2));
42 static struct efi_device_path * EFIAPI append_device_node(
43 const struct efi_device_path *device_path,
44 const struct efi_device_path *device_node)
46 EFI_ENTRY("%p, %p", device_path, device_node);
47 return EFI_EXIT(efi_dp_append_node(device_path, device_node));
50 static struct efi_device_path * EFIAPI append_device_path_instance(
51 const struct efi_device_path *device_path,
52 const struct efi_device_path *device_path_instance)
54 EFI_ENTRY("%p, %p", device_path, device_path_instance);
55 return EFI_EXIT(NULL);
58 static struct efi_device_path * EFIAPI get_next_device_path_instance(
59 struct efi_device_path **device_path_instance,
60 efi_uintn_t *device_path_instance_size)
62 EFI_ENTRY("%p, %p", device_path_instance, device_path_instance_size);
63 return EFI_EXIT(NULL);
66 static bool EFIAPI is_device_path_multi_instance(
67 const struct efi_device_path *device_path)
69 EFI_ENTRY("%p", device_path);
70 return EFI_EXIT(false);
73 static struct efi_device_path * EFIAPI create_device_node(
74 uint8_t node_type, uint8_t node_sub_type, uint16_t node_length)
76 EFI_ENTRY("%u, %u, %u", node_type, node_sub_type, node_length);
77 return EFI_EXIT(NULL);
80 const struct efi_device_path_utilities_protocol efi_device_path_utilities = {
81 .get_device_path_size = get_device_path_size,
82 .duplicate_device_path = duplicate_device_path,
83 .append_device_path = append_device_path,
84 .append_device_node = append_device_node,
85 .append_device_path_instance = append_device_path_instance,
86 .get_next_device_path_instance = get_next_device_path_instance,
87 .is_device_path_multi_instance = is_device_path_multi_instance,
88 .create_device_node = create_device_node,