1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright (C) 2012 Red Hat, Inc.
4 * Copyright (C) 2012 Jeremy Kerr <jeremy.kerr@canonical.com>
5 */
6#ifndef EFIVAR_FS_INTERNAL_H
7#define EFIVAR_FS_INTERNAL_H
8
9#include <linux/list.h>
10#include <linux/efi.h>
11
12struct efivarfs_mount_opts {
13 kuid_t uid;
14 kgid_t gid;
15};
16
17struct efivarfs_fs_info {
18 struct efivarfs_mount_opts mount_opts;
19 struct list_head efivarfs_list;
20 struct super_block *sb;
21 struct notifier_block nb;
22};
23
24struct efi_variable {
25 efi_char16_t VariableName[EFI_VAR_NAME_LEN/sizeof(efi_char16_t)];
26 efi_guid_t VendorGuid;
27 unsigned long DataSize;
28 __u8 Data[1024];
29 efi_status_t Status;
30 __u32 Attributes;
31} __attribute__((packed));
32
33struct efivar_entry {
34 struct efi_variable var;
35 struct list_head list;
36 struct kobject kobj;
37};
38
39int efivar_init(int (*func)(efi_char16_t *, efi_guid_t, unsigned long, void *,
40 struct list_head *),
41 void *data, struct list_head *head);
42
43int efivar_entry_add(struct efivar_entry *entry, struct list_head *head);
44void __efivar_entry_add(struct efivar_entry *entry, struct list_head *head);
45void efivar_entry_remove(struct efivar_entry *entry);
46int efivar_entry_delete(struct efivar_entry *entry);
47
48int efivar_entry_size(struct efivar_entry *entry, unsigned long *size);
49int __efivar_entry_get(struct efivar_entry *entry, u32 *attributes,
50 unsigned long *size, void *data);
51int efivar_entry_get(struct efivar_entry *entry, u32 *attributes,
52 unsigned long *size, void *data);
53int efivar_entry_set_get_size(struct efivar_entry *entry, u32 attributes,
54 unsigned long *size, void *data, bool *set);
55
56int efivar_entry_iter(int (*func)(struct efivar_entry *, void *),
57 struct list_head *head, void *data);
58
59bool efivar_validate(efi_guid_t vendor, efi_char16_t *var_name, u8 *data,
60 unsigned long data_size);
61bool efivar_variable_is_removable(efi_guid_t vendor, const char *name,
62 size_t len);
63
64extern const struct file_operations efivarfs_file_operations;
65extern const struct inode_operations efivarfs_dir_inode_operations;
66extern bool efivarfs_valid_name(const char *str, int len);
67extern struct inode *efivarfs_get_inode(struct super_block *sb,
68 const struct inode *dir, int mode, dev_t dev,
69 bool is_removable);
70
71#endif /* EFIVAR_FS_INTERNAL_H */
72

source code of linux/fs/efivarfs/internal.h