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	__u32         Attributes;
28};
29
30struct efivar_entry {
31	struct efi_variable var;
32	struct list_head list;
33	struct kobject kobj;
34};
35
36int efivar_init(int (*func)(efi_char16_t *, efi_guid_t, unsigned long, void *,
37			    struct list_head *),
38		void *data, struct list_head *head);
39
40int efivar_entry_add(struct efivar_entry *entry, struct list_head *head);
41void __efivar_entry_add(struct efivar_entry *entry, struct list_head *head);
42void efivar_entry_remove(struct efivar_entry *entry);
43int efivar_entry_delete(struct efivar_entry *entry);
44
45int efivar_entry_size(struct efivar_entry *entry, unsigned long *size);
46int __efivar_entry_get(struct efivar_entry *entry, u32 *attributes,
47		       unsigned long *size, void *data);
48int efivar_entry_get(struct efivar_entry *entry, u32 *attributes,
49		     unsigned long *size, void *data);
50int efivar_entry_set_get_size(struct efivar_entry *entry, u32 attributes,
51			      unsigned long *size, void *data, bool *set);
52
53int efivar_entry_iter(int (*func)(struct efivar_entry *, void *),
54		      struct list_head *head, void *data);
55
56bool efivar_validate(efi_guid_t vendor, efi_char16_t *var_name, u8 *data,
57		     unsigned long data_size);
58bool efivar_variable_is_removable(efi_guid_t vendor, const char *name,
59				  size_t len);
60
61extern const struct file_operations efivarfs_file_operations;
62extern const struct inode_operations efivarfs_dir_inode_operations;
 
63extern 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 */

 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 */