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 efi_variable { 13 efi_char16_t VariableName[EFI_VAR_NAME_LEN/sizeof(efi_char16_t)]; 14 efi_guid_t VendorGuid; 15 unsigned long DataSize; 16 __u8 Data[1024]; 17 efi_status_t Status; 18 __u32 Attributes; 19} __attribute__((packed)); 20 21struct efivar_entry { 22 struct efi_variable var; 23 struct list_head list; 24 struct kobject kobj; 25}; 26 27int efivar_init(int (*func)(efi_char16_t *, efi_guid_t, unsigned long, void *), 28 void *data, bool duplicates, struct list_head *head); 29 30int efivar_entry_add(struct efivar_entry *entry, struct list_head *head); 31void __efivar_entry_add(struct efivar_entry *entry, struct list_head *head); 32void efivar_entry_remove(struct efivar_entry *entry); 33int efivar_entry_delete(struct efivar_entry *entry); 34 35int efivar_entry_size(struct efivar_entry *entry, unsigned long *size); 36int __efivar_entry_get(struct efivar_entry *entry, u32 *attributes, 37 unsigned long *size, void *data); 38int efivar_entry_get(struct efivar_entry *entry, u32 *attributes, 39 unsigned long *size, void *data); 40int efivar_entry_set_get_size(struct efivar_entry *entry, u32 attributes, 41 unsigned long *size, void *data, bool *set); 42 43int efivar_entry_iter(int (*func)(struct efivar_entry *, void *), 44 struct list_head *head, void *data); 45 46bool efivar_validate(efi_guid_t vendor, efi_char16_t *var_name, u8 *data, 47 unsigned long data_size); 48bool efivar_variable_is_removable(efi_guid_t vendor, const char *name, 49 size_t len); 50 51extern const struct file_operations efivarfs_file_operations; 52extern const struct inode_operations efivarfs_dir_inode_operations; 53extern bool efivarfs_valid_name(const char *str, int len); 54extern struct inode *efivarfs_get_inode(struct super_block *sb, 55 const struct inode *dir, int mode, dev_t dev, 56 bool is_removable); 57 58extern struct list_head efivarfs_list; 59 60#endif /* EFIVAR_FS_INTERNAL_H */ 61