1 /* SPDX-License-Identifier: GPL-2.0 */
2 /*
3 * Copyright © 2016 Intel Corporation
4 *
5 * Authors:
6 * Rafael Antognolli <rafael.antognolli@intel.com>
7 * Scott Bauer <scott.bauer@intel.com>
8 */
9
10 #ifndef LINUX_OPAL_H
11 #define LINUX_OPAL_H
12
13 #include <uapi/linux/sed-opal.h>
14 #include <linux/compiler_types.h>
15 #include <linux/types.h>
16
17 struct opal_dev;
18
19 typedef int (sec_send_recv)(void *data, u16 spsp, u8 secp, void *buffer,
20 size_t len, bool send);
21
22 #ifdef CONFIG_BLK_SED_OPAL
23 void free_opal_dev(struct opal_dev *dev);
24 bool opal_unlock_from_suspend(struct opal_dev *dev);
25 struct opal_dev *init_opal_dev(void *data, sec_send_recv *send_recv);
26 int sed_ioctl(struct opal_dev *dev, unsigned int cmd, void __user *ioctl_ptr);
27
28 #define OPAL_AUTH_KEY "opal-boot-pin"
29 #define OPAL_AUTH_KEY_PREV "opal-boot-pin-prev"
30
31 static inline bool is_sed_ioctl(unsigned int cmd)
32 {
33 switch (cmd) {
34 case IOC_OPAL_SAVE:
35 case IOC_OPAL_LOCK_UNLOCK:
36 case IOC_OPAL_TAKE_OWNERSHIP:
37 case IOC_OPAL_ACTIVATE_LSP:
38 case IOC_OPAL_SET_PW:
39 case IOC_OPAL_ACTIVATE_USR:
40 case IOC_OPAL_REVERT_TPR:
41 case IOC_OPAL_LR_SETUP:
42 case IOC_OPAL_ADD_USR_TO_LR:
43 case IOC_OPAL_ENABLE_DISABLE_MBR:
44 case IOC_OPAL_ERASE_LR:
45 case IOC_OPAL_SECURE_ERASE_LR:
46 case IOC_OPAL_PSID_REVERT_TPR:
47 case IOC_OPAL_MBR_DONE:
48 case IOC_OPAL_WRITE_SHADOW_MBR:
49 case IOC_OPAL_GENERIC_TABLE_RW:
50 case IOC_OPAL_GET_STATUS:
51 case IOC_OPAL_GET_LR_STATUS:
52 case IOC_OPAL_GET_GEOMETRY:
53 case IOC_OPAL_DISCOVERY:
54 case IOC_OPAL_REVERT_LSP:
55 return true;
56 }
57 return false;
58 }
59 #else
60 static inline void free_opal_dev(struct opal_dev *dev)
61 {
62 }
63
64 static inline bool is_sed_ioctl(unsigned int cmd)
65 {
66 return false;
67 }
68
69 static inline int sed_ioctl(struct opal_dev *dev, unsigned int cmd,
70 void __user *ioctl_ptr)
71 {
72 return 0;
73 }
74 static inline bool opal_unlock_from_suspend(struct opal_dev *dev)
75 {
76 return false;
77 }
78 #define init_opal_dev(data, send_recv) NULL
79 #endif /* CONFIG_BLK_SED_OPAL */
80 #endif /* LINUX_OPAL_H */
81
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