[mirror_ubuntu-jammy-kernel.git] / include / linux / sed-opal.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Copyright © 2016 Intel Corporation
 *
 * Authors:
 *    Rafael Antognolli <rafael.antognolli@intel.com>
 *    Scott  Bauer      <scott.bauer@intel.com>
 */

#ifndef LINUX_OPAL_H
#define LINUX_OPAL_H

#include <uapi/linux/sed-opal.h>
#include <linux/kernel.h>

struct opal_dev;

typedef int (sec_send_recv)(void *data, u16 spsp, u8 secp, void *buffer,
		size_t len, bool send);

#ifdef CONFIG_BLK_SED_OPAL
void free_opal_dev(struct opal_dev *dev);
bool opal_unlock_from_suspend(struct opal_dev *dev);
struct opal_dev *init_opal_dev(void *data, sec_send_recv *send_recv);
int sed_ioctl(struct opal_dev *dev, unsigned int cmd, void __user *ioctl_ptr);

static inline bool is_sed_ioctl(unsigned int cmd)
{
	switch (cmd) {
	case IOC_OPAL_SAVE:
	case IOC_OPAL_LOCK_UNLOCK:
	case IOC_OPAL_TAKE_OWNERSHIP:
	case IOC_OPAL_ACTIVATE_LSP:
	case IOC_OPAL_SET_PW:
	case IOC_OPAL_ACTIVATE_USR:
	case IOC_OPAL_REVERT_TPR:
	case IOC_OPAL_LR_SETUP:
	case IOC_OPAL_ADD_USR_TO_LR:
	case IOC_OPAL_ENABLE_DISABLE_MBR:
	case IOC_OPAL_ERASE_LR:
	case IOC_OPAL_SECURE_ERASE_LR:
	case IOC_OPAL_PSID_REVERT_TPR:
	case IOC_OPAL_MBR_DONE:
	case IOC_OPAL_WRITE_SHADOW_MBR:
	case IOC_OPAL_GENERIC_TABLE_RW:
		return true;
	}
	return false;
}
#else
static inline void free_opal_dev(struct opal_dev *dev)
{
}

static inline bool is_sed_ioctl(unsigned int cmd)
{
	return false;
}

static inline int sed_ioctl(struct opal_dev *dev, unsigned int cmd,
			    void __user *ioctl_ptr)
{
	return 0;
}
static inline bool opal_unlock_from_suspend(struct opal_dev *dev)
{
	return false;
}
#define init_opal_dev(data, send_recv)		NULL
#endif /* CONFIG_BLK_SED_OPAL */
#endif /* LINUX_OPAL_H */
Commit	Line	Data
8c16567d	1	/* SPDX-License-Identifier: GPL-2.0 */
455a7b23 SB	2	/*
	3	* Copyright © 2016 Intel Corporation
	4	*
	5	* Authors:
	6	* Rafael Antognolli <rafael.antognolli@intel.com>
	7	* Scott Bauer <scott.bauer@intel.com>
455a7b23 SB	8	*/
	9
	10	#ifndef LINUX_OPAL_H
	11	#define LINUX_OPAL_H
	12
	13	#include <uapi/linux/sed-opal.h>
	14	#include <linux/kernel.h>
	15
455a7b23 SB	16	struct opal_dev;
455a7b23 SB	17
4f1244c8 CH	18	typedef int (sec_send_recv)(void data, u16 spsp, u8 secp, void buffer,
4f1244c8 CH	19	size_t len, bool send);
455a7b23 SB	20
455a7b23 SB	21	#ifdef CONFIG_BLK_SED_OPAL
7d6d1578	22	void free_opal_dev(struct opal_dev *dev);
455a7b23	23	bool opal_unlock_from_suspend(struct opal_dev *dev);
4f1244c8	24	struct opal_dev init_opal_dev(void data, sec_send_recv *send_recv);
e225c20e	25	int sed_ioctl(struct opal_dev dev, unsigned int cmd, void __user ioctl_ptr);
455a7b23 SB	26
	27	static inline bool is_sed_ioctl(unsigned int cmd)
	28	{
	29	switch (cmd) {
	30	case IOC_OPAL_SAVE:
	31	case IOC_OPAL_LOCK_UNLOCK:
	32	case IOC_OPAL_TAKE_OWNERSHIP:
	33	case IOC_OPAL_ACTIVATE_LSP:
	34	case IOC_OPAL_SET_PW:
	35	case IOC_OPAL_ACTIVATE_USR:
	36	case IOC_OPAL_REVERT_TPR:
	37	case IOC_OPAL_LR_SETUP:
	38	case IOC_OPAL_ADD_USR_TO_LR:
	39	case IOC_OPAL_ENABLE_DISABLE_MBR:
	40	case IOC_OPAL_ERASE_LR:
	41	case IOC_OPAL_SECURE_ERASE_LR:
5e4c7cf6	42	case IOC_OPAL_PSID_REVERT_TPR:
c9888443	43	case IOC_OPAL_MBR_DONE:
a9b25b4c	44	case IOC_OPAL_WRITE_SHADOW_MBR:
51f421c8	45	case IOC_OPAL_GENERIC_TABLE_RW:
455a7b23 SB	46	return true;
	47	}
	48	return false;
	49	}
	50	#else
7d6d1578 SB	51	static inline void free_opal_dev(struct opal_dev *dev)
	52	{
	53	}
	54
455a7b23 SB	55	static inline bool is_sed_ioctl(unsigned int cmd)
	56	{
	57	return false;
	58	}
	59
	60	static inline int sed_ioctl(struct opal_dev *dev, unsigned int cmd,
e225c20e	61	void __user *ioctl_ptr)
455a7b23 SB	62	{
	63	return 0;
	64	}
	65	static inline bool opal_unlock_from_suspend(struct opal_dev *dev)
	66	{
	67	return false;
	68	}
4f1244c8	69	#define init_opal_dev(data, send_recv) NULL
455a7b23 SB	70	#endif /* CONFIG_BLK_SED_OPAL */
455a7b23 SB	71	#endif /* LINUX_OPAL_H */