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/efi.h> 10 11 struct efivarfs_mount_opts { 12 kuid_t uid; 13 kgid_t gid; 14 }; 15 16 struct efivarfs_fs_info { 17 struct efivarfs_mount_opts mount_opts; 18 struct super_block *sb; 19 struct notifier_block nb; 20 }; 21 22 struct efi_variable { 23 efi_char16_t VariableName[EFI_VAR_NAME_LEN/sizeof(efi_char16_t)]; 24 efi_guid_t VendorGuid; 25 }; 26 27 struct efivar_entry { 28 struct efi_variable var; 29 struct inode vfs_inode; 30 unsigned long open_count; 31 bool removed; 32 }; 33 34 static inline struct efivar_entry *efivar_entry(struct inode *inode) 35 { 36 return container_of(inode, struct efivar_entry, vfs_inode); 37 } 38 39 int efivar_init(int (*func)(efi_char16_t *, efi_guid_t, unsigned long, void *), 40 void *data, bool duplicate_check); 41 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 53 bool efivar_validate(efi_guid_t vendor, efi_char16_t *var_name, u8 *data, 54 unsigned long data_size); 55 bool efivar_variable_is_removable(efi_guid_t vendor, const char *name, 56 size_t len); 57 char *efivar_get_utf8name(const efi_char16_t *name16, efi_guid_t *vendor); 58 bool efivarfs_variable_is_present(efi_char16_t *variable_name, 59 efi_guid_t *vendor, void *data); 60 61 extern const struct file_operations efivarfs_file_operations; 62 extern const struct inode_operations efivarfs_dir_inode_operations; 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 #endif /* EFIVAR_FS_INTERNAL_H */ 68