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51f421c85c
This feature gives the user RW access to any opal table with admin1 authority. The flags described in the new structure determines if the user wants to read/write the data. Flags are checked for valid values in order to allow future features to be added to the ioctl. The user can provide the desired table's UID. Also, the ioctl provides a size and offset field and internally will loop data accesses to return the full data block. Read overrun is prevented by the initiator's sec_send_recv() backend. The ioctl provides a private field with the intention to accommodate any future expansions to the ioctl. Reviewed-by: Scott Bauer <sbauer@plzdonthack.me> Reviewed-by: Jon Derrick <jonathan.derrick@intel.com> Signed-off-by: Revanth Rajashekar <revanth.rajashekar@intel.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
153 lines
3.7 KiB
C
153 lines
3.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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/*
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* Copyright © 2016 Intel Corporation
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*
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* Authors:
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* Rafael Antognolli <rafael.antognolli@intel.com>
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* Scott Bauer <scott.bauer@intel.com>
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*/
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#ifndef _UAPI_SED_OPAL_H
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#define _UAPI_SED_OPAL_H
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#include <linux/types.h>
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#define OPAL_KEY_MAX 256
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#define OPAL_MAX_LRS 9
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enum opal_mbr {
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OPAL_MBR_ENABLE = 0x0,
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OPAL_MBR_DISABLE = 0x01,
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};
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enum opal_mbr_done_flag {
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OPAL_MBR_NOT_DONE = 0x0,
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OPAL_MBR_DONE = 0x01
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};
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enum opal_user {
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OPAL_ADMIN1 = 0x0,
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OPAL_USER1 = 0x01,
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OPAL_USER2 = 0x02,
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OPAL_USER3 = 0x03,
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OPAL_USER4 = 0x04,
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OPAL_USER5 = 0x05,
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OPAL_USER6 = 0x06,
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OPAL_USER7 = 0x07,
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OPAL_USER8 = 0x08,
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OPAL_USER9 = 0x09,
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};
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enum opal_lock_state {
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OPAL_RO = 0x01, /* 0001 */
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OPAL_RW = 0x02, /* 0010 */
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OPAL_LK = 0x04, /* 0100 */
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};
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struct opal_key {
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__u8 lr;
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__u8 key_len;
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__u8 __align[6];
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__u8 key[OPAL_KEY_MAX];
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};
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struct opal_lr_act {
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struct opal_key key;
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__u32 sum;
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__u8 num_lrs;
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__u8 lr[OPAL_MAX_LRS];
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__u8 align[2]; /* Align to 8 byte boundary */
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};
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struct opal_session_info {
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__u32 sum;
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__u32 who;
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struct opal_key opal_key;
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};
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struct opal_user_lr_setup {
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__u64 range_start;
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__u64 range_length;
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__u32 RLE; /* Read Lock enabled */
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__u32 WLE; /* Write Lock Enabled */
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struct opal_session_info session;
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};
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struct opal_lock_unlock {
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struct opal_session_info session;
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__u32 l_state;
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__u8 __align[4];
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};
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struct opal_new_pw {
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struct opal_session_info session;
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/* When we're not operating in sum, and we first set
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* passwords we need to set them via ADMIN authority.
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* After passwords are changed, we can set them via,
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* User authorities.
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* Because of this restriction we need to know about
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* Two different users. One in 'session' which we will use
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* to start the session and new_userr_pw as the user we're
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* chaning the pw for.
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*/
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struct opal_session_info new_user_pw;
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};
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struct opal_mbr_data {
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struct opal_key key;
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__u8 enable_disable;
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__u8 __align[7];
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};
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struct opal_mbr_done {
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struct opal_key key;
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__u8 done_flag;
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__u8 __align[7];
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};
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struct opal_shadow_mbr {
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struct opal_key key;
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const __u64 data;
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__u64 offset;
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__u64 size;
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};
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/* Opal table operations */
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enum opal_table_ops {
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OPAL_READ_TABLE,
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OPAL_WRITE_TABLE,
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};
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#define OPAL_UID_LENGTH 8
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struct opal_read_write_table {
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struct opal_key key;
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const __u64 data;
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const __u8 table_uid[OPAL_UID_LENGTH];
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__u64 offset;
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__u64 size;
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#define OPAL_TABLE_READ (1 << OPAL_READ_TABLE)
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#define OPAL_TABLE_WRITE (1 << OPAL_WRITE_TABLE)
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__u64 flags;
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__u64 priv;
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};
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#define IOC_OPAL_SAVE _IOW('p', 220, struct opal_lock_unlock)
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#define IOC_OPAL_LOCK_UNLOCK _IOW('p', 221, struct opal_lock_unlock)
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#define IOC_OPAL_TAKE_OWNERSHIP _IOW('p', 222, struct opal_key)
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#define IOC_OPAL_ACTIVATE_LSP _IOW('p', 223, struct opal_lr_act)
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#define IOC_OPAL_SET_PW _IOW('p', 224, struct opal_new_pw)
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#define IOC_OPAL_ACTIVATE_USR _IOW('p', 225, struct opal_session_info)
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#define IOC_OPAL_REVERT_TPR _IOW('p', 226, struct opal_key)
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#define IOC_OPAL_LR_SETUP _IOW('p', 227, struct opal_user_lr_setup)
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#define IOC_OPAL_ADD_USR_TO_LR _IOW('p', 228, struct opal_lock_unlock)
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#define IOC_OPAL_ENABLE_DISABLE_MBR _IOW('p', 229, struct opal_mbr_data)
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#define IOC_OPAL_ERASE_LR _IOW('p', 230, struct opal_session_info)
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#define IOC_OPAL_SECURE_ERASE_LR _IOW('p', 231, struct opal_session_info)
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#define IOC_OPAL_PSID_REVERT_TPR _IOW('p', 232, struct opal_key)
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#define IOC_OPAL_MBR_DONE _IOW('p', 233, struct opal_mbr_done)
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#define IOC_OPAL_WRITE_SHADOW_MBR _IOW('p', 234, struct opal_shadow_mbr)
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#define IOC_OPAL_GENERIC_TABLE_RW _IOW('p', 235, struct opal_read_write_table)
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#endif /* _UAPI_SED_OPAL_H */
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