| 1 | |
| 2 | * Copyright © 2016 Intel Corporation
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| 3 | *
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| 4 | * Authors:
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| 5 | * Rafael Antognolli <[email protected]>
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| 6 | * Scott Bauer <[email protected]>
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| 7 | *
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| 8 | * This program is free software; you can redistribute it and/or modify it
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| 9 | * under the terms and conditions of the GNU General Public License,
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| 10 | * version 2, as published by the Free Software Foundation.
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| 11 | *
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| 12 | * This program is distributed in the hope it will be useful, but WITHOUT
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| 13 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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| 14 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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| 15 | * more details.
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| 16 |
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| 17 |
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| 18 | #ifndef LINUX_OPAL_H
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| 19 | #define LINUX_OPAL_H
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| 20 |
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| 21 | #include <uapi/linux/sed-opal.h>
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| 22 | #include <linux/kernel.h>
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| 23 |
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| 24 | struct opal_dev;
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| 25 |
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| 26 | typedef int (sec_send_recv)(void *data, u16 spsp, u8 secp, void *buffer,
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| 27 | size_t len, bool send);
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| 28 |
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| 29 | #ifdef CONFIG_BLK_SED_OPAL
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| 30 | void free_opal_dev(struct opal_dev *dev);
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| 31 | bool opal_unlock_from_suspend(struct opal_dev *dev);
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| 32 | struct opal_dev *init_opal_dev(void *data, sec_send_recv *send_recv);
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| 33 | int sed_ioctl(struct opal_dev *dev, unsigned int cmd, void __user *ioctl_ptr);
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| 34 |
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| 35 | static inline bool is_sed_ioctl(unsigned int cmd)
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| 36 | {
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| 37 | switch (cmd) {
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| 38 | case IOC_OPAL_SAVE:
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| 39 | case IOC_OPAL_LOCK_UNLOCK:
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| 40 | case IOC_OPAL_TAKE_OWNERSHIP:
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| 41 | case IOC_OPAL_ACTIVATE_LSP:
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| 42 | case IOC_OPAL_SET_PW:
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| 43 | case IOC_OPAL_ACTIVATE_USR:
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| 44 | case IOC_OPAL_REVERT_TPR:
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| 45 | case IOC_OPAL_LR_SETUP:
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| 46 | case IOC_OPAL_ADD_USR_TO_LR:
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| 47 | case IOC_OPAL_ENABLE_DISABLE_MBR:
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| 48 | case IOC_OPAL_ERASE_LR:
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| 49 | case IOC_OPAL_SECURE_ERASE_LR:
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| 50 | return true;
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| 51 | }
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| 52 | return false;
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| 53 | }
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| 54 | #else
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| 55 | static inline void free_opal_dev(struct opal_dev *dev)
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| 56 | {
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| 57 | }
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| 58 |
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| 59 | static inline bool is_sed_ioctl(unsigned int cmd)
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| 60 | {
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| 61 | return false;
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| 62 | }
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| 63 |
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| 64 | static inline int sed_ioctl(struct opal_dev *dev, unsigned int cmd,
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| 65 | void __user *ioctl_ptr)
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| 66 | {
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| 67 | return 0;
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| 68 | }
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| 69 | static inline bool opal_unlock_from_suspend(struct opal_dev *dev)
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| 70 | {
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| 71 | return false;
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| 72 | }
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| 73 | #define init_opal_dev(data, send_recv) NULL
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| 74 | #endif
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| 75 | #endif
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