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 12 struct efivarfs_mount_opts { 13 kuid_t uid; 14 kgid_t gid; 15 }; 16 17 struct efivarfs_fs_info { 18 struct efivarfs_mount_opts mount_opts; 19 }; 20 21 struct efi_variable { 22 efi_char16_t VariableName[EFI_VAR_NAME_LEN/sizeof(efi_char16_t)]; 23 efi_guid_t VendorGuid; 24 unsigned long DataSize; 25 __u8 Data[1024]; 26 efi_status_t Status; 27 __u32 Attributes; 28 } __attribute__((packed)); 29 30 struct efivar_entry { 31 struct efi_variable var; 32 struct list_head list; 33 struct kobject kobj; 34 }; 35 36 int efivar_init(int (*func)(efi_char16_t *, efi_guid_t, unsigned long, void *), 37 void *data, bool duplicates, struct list_head *head); 38 39 int efivar_entry_add(struct efivar_entry *entry, struct list_head *head); 40 void __efivar_entry_add(struct efivar_entry *entry, struct list_head *head); 41 void efivar_entry_remove(struct efivar_entry *entry); 42 int efivar_entry_delete(struct efivar_entry *entry); 43 44 int efivar_entry_size(struct efivar_entry *entry, unsigned long *size); 45 int __efivar_entry_get(struct efivar_entry *entry, u32 *attributes, 46 unsigned long *size, void *data); 47 int efivar_entry_get(struct efivar_entry *entry, u32 *attributes, 48 unsigned long *size, void *data); 49 int efivar_entry_set_get_size(struct efivar_entry *entry, u32 attributes, 50 unsigned long *size, void *data, bool *set); 51 52 int efivar_entry_iter(int (*func)(struct efivar_entry *, void *), 53 struct list_head *head, void *data); 54 55 bool efivar_validate(efi_guid_t vendor, efi_char16_t *var_name, u8 *data, 56 unsigned long data_size); 57 bool efivar_variable_is_removable(efi_guid_t vendor, const char *name, 58 size_t len); 59 60 extern const struct file_operations efivarfs_file_operations; 61 extern const struct inode_operations efivarfs_dir_inode_operations; 62 extern bool efivarfs_valid_name(const char *str, int len); 63 extern struct inode *efivarfs_get_inode(struct super_block *sb, 64 const struct inode *dir, int mode, dev_t dev, 65 bool is_removable); 66 67 extern struct list_head efivarfs_list; 68 69 #endif /* EFIVAR_FS_INTERNAL_H */ 70