| 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
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| 2 | /* |
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| 3 | * Copyright (C) 2012 Red Hat, Inc. |
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| 4 | * Copyright (C) 2012 Jeremy Kerr <jeremy.kerr@canonical.com> |
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| 5 | */ |
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| 6 | #ifndef EFIVAR_FS_INTERNAL_H |
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| 7 | #define EFIVAR_FS_INTERNAL_H |
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| 8 | |
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| 9 | #include <linux/efi.h> |
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| 10 | |
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| 11 | struct efivarfs_mount_opts { |
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| 12 | kuid_t uid; |
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| 13 | kgid_t gid; |
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| 14 | }; |
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| 15 | |
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| 16 | struct efivarfs_fs_info { |
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| 17 | struct efivarfs_mount_opts mount_opts; |
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| 18 | struct super_block *sb; |
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| 19 | struct notifier_block nb; |
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| 20 | }; |
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| 21 | |
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| 22 | struct efi_variable { |
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| 23 | efi_char16_t VariableName[EFI_VAR_NAME_LEN/sizeof(efi_char16_t)]; |
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| 24 | efi_guid_t VendorGuid; |
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| 25 | }; |
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| 26 | |
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| 27 | struct efivar_entry { |
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| 28 | struct efi_variable var; |
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| 29 | struct inode vfs_inode; |
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| 30 | unsigned long open_count; |
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| 31 | bool removed; |
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| 32 | }; |
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| 33 | |
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| 34 | static inline struct efivar_entry *efivar_entry(struct inode *inode) |
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| 35 | { |
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| 36 | return container_of(inode, struct efivar_entry, vfs_inode); |
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| 37 | } |
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| 38 | |
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| 39 | int efivar_init(int (*func)(efi_char16_t *, efi_guid_t, unsigned long, void *), |
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| 40 | void *data, bool duplicate_check); |
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| 41 | |
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| 42 | int efivar_entry_delete(struct efivar_entry *entry); |
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| 43 | |
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| 44 | int efivar_entry_size(struct efivar_entry *entry, unsigned long *size); |
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| 45 | int __efivar_entry_get(struct efivar_entry *entry, u32 *attributes, |
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| 46 | unsigned long *size, void *data); |
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| 47 | int efivar_entry_get(struct efivar_entry *entry, u32 *attributes, |
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| 48 | unsigned long *size, void *data); |
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| 49 | int efivar_entry_set_get_size(struct efivar_entry *entry, u32 attributes, |
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| 50 | unsigned long *size, void *data, bool *set); |
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| 51 | |
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| 52 | |
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| 53 | bool efivar_validate(efi_guid_t vendor, efi_char16_t *var_name, u8 *data, |
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| 54 | unsigned long data_size); |
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| 55 | bool efivar_variable_is_removable(efi_guid_t vendor, const char *name, |
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| 56 | size_t len); |
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| 57 | char *efivar_get_utf8name(const efi_char16_t *name16, efi_guid_t *vendor); |
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| 58 | bool efivarfs_variable_is_present(efi_char16_t *variable_name, |
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| 59 | efi_guid_t *vendor, void *data); |
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| 60 | |
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| 61 | extern const struct file_operations efivarfs_file_operations; |
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| 62 | extern const struct inode_operations efivarfs_dir_inode_operations; |
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| 63 | extern struct inode *efivarfs_get_inode(struct super_block *sb, |
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| 64 | const struct inode *dir, int mode, dev_t dev, |
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| 65 | bool is_removable); |
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| 66 | |
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| 67 | #endif /* EFIVAR_FS_INTERNAL_H */ |
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| 68 | |
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