[linux-2.6-block.git] / fs / efivarfs / internal.h

/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Copyright (C) 2012 Red Hat, Inc.
 * Copyright (C) 2012 Jeremy Kerr <jeremy.kerr@canonical.com>
 */
#ifndef EFIVAR_FS_INTERNAL_H
#define EFIVAR_FS_INTERNAL_H

#include <linux/list.h>
#include <linux/efi.h>

struct efivarfs_mount_opts {
	kuid_t uid;
	kgid_t gid;
};

struct efivarfs_fs_info {
	struct efivarfs_mount_opts mount_opts;
	struct list_head efivarfs_list;
	struct super_block *sb;
	struct notifier_block nb;
};

struct efi_variable {
	efi_char16_t  VariableName[EFI_VAR_NAME_LEN/sizeof(efi_char16_t)];
	efi_guid_t    VendorGuid;
	__u32         Attributes;
};

struct efivar_entry {
	struct efi_variable var;
	struct list_head list;
	struct kobject kobj;
};

int efivar_init(int (*func)(efi_char16_t *, efi_guid_t, unsigned long, void *,
			    struct list_head *),
		void *data, struct list_head *head);

int efivar_entry_add(struct efivar_entry *entry, struct list_head *head);
void __efivar_entry_add(struct efivar_entry *entry, struct list_head *head);
void efivar_entry_remove(struct efivar_entry *entry);
int efivar_entry_delete(struct efivar_entry *entry);

int efivar_entry_size(struct efivar_entry *entry, unsigned long *size);
int __efivar_entry_get(struct efivar_entry *entry, u32 *attributes,
		       unsigned long *size, void *data);
int efivar_entry_get(struct efivar_entry *entry, u32 *attributes,
		     unsigned long *size, void *data);
int efivar_entry_set_get_size(struct efivar_entry *entry, u32 attributes,
			      unsigned long *size, void *data, bool *set);

int efivar_entry_iter(int (*func)(struct efivar_entry *, void *),
		      struct list_head *head, void *data);

bool efivar_validate(efi_guid_t vendor, efi_char16_t *var_name, u8 *data,
		     unsigned long data_size);
bool efivar_variable_is_removable(efi_guid_t vendor, const char *name,
				  size_t len);

extern const struct file_operations efivarfs_file_operations;
extern const struct inode_operations efivarfs_dir_inode_operations;
extern bool efivarfs_valid_name(const char *str, int len);
extern struct inode *efivarfs_get_inode(struct super_block *sb,
			const struct inode *dir, int mode, dev_t dev,
			bool is_removable);

#endif /* EFIVAR_FS_INTERNAL_H */
Commit	Line	Data
d2912cb1	1	/* SPDX-License-Identifier: GPL-2.0-only */
d68772b7 MF	2	/*
	3	* Copyright (C) 2012 Red Hat, Inc.
	4	* Copyright (C) 2012 Jeremy Kerr <jeremy.kerr@canonical.com>
d68772b7 MF	5	*/
	6	#ifndef EFIVAR_FS_INTERNAL_H
	7	#define EFIVAR_FS_INTERNAL_H
	8
	9	#include <linux/list.h>
2d82e622 AB	10	#include <linux/efi.h>
2d82e622 AB	11
5329aa51 JZ	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;
cdb46a8a	19	struct list_head efivarfs_list;
94f7f618 MK	20	struct super_block *sb;
94f7f618 MK	21	struct notifier_block nb;
5329aa51 JZ	22	};
5329aa51 JZ	23
2d82e622 AB	24	struct efi_variable {
	25	efi_char16_t VariableName[EFI_VAR_NAME_LEN/sizeof(efi_char16_t)];
	26	efi_guid_t VendorGuid;
2d82e622	27	__u32 Attributes;
89ea21d7	28	};
2d82e622 AB	29
	30	struct efivar_entry {
	31	struct efi_variable var;
	32	struct list_head list;
	33	struct kobject kobj;
	34	};
	35
cdb46a8a AB	36	int efivar_init(int (func)(efi_char16_t , efi_guid_t, unsigned long, void *,
cdb46a8a AB	37	struct list_head *),
2ce507f5	38	void data, struct list_head head);
2d82e622 AB	39
	40	int efivar_entry_add(struct efivar_entry entry, struct list_head head);
	41	void __efivar_entry_add(struct efivar_entry entry, struct list_head head);
	42	void efivar_entry_remove(struct efivar_entry *entry);
	43	int efivar_entry_delete(struct efivar_entry *entry);
	44
	45	int efivar_entry_size(struct efivar_entry entry, unsigned long size);
	46	int __efivar_entry_get(struct efivar_entry entry, u32 attributes,
	47	unsigned long size, void data);
	48	int efivar_entry_get(struct efivar_entry entry, u32 attributes,
	49	unsigned long size, void data);
	50	int efivar_entry_set_get_size(struct efivar_entry *entry, u32 attributes,
	51	unsigned long size, void data, bool *set);
	52
	53	int efivar_entry_iter(int (func)(struct efivar_entry , void *),
	54	struct list_head head, void data);
	55
	56	bool efivar_validate(efi_guid_t vendor, efi_char16_t var_name, u8 data,
	57	unsigned long data_size);
	58	bool efivar_variable_is_removable(efi_guid_t vendor, const char *name,
	59	size_t len);
d68772b7 MF	60
	61	extern const struct file_operations efivarfs_file_operations;
	62	extern const struct inode_operations efivarfs_dir_inode_operations;
	63	extern bool efivarfs_valid_name(const char *str, int len);
	64	extern struct inode efivarfs_get_inode(struct super_block sb,
ed8b0de5 PJ	65	const struct inode *dir, int mode, dev_t dev,
ed8b0de5 PJ	66	bool is_removable);
d68772b7	67
d68772b7	68	#endif /* EFIVAR_FS_INTERNAL_H */