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