forked from luck/tmp_suning_uos_patched
4f1244c829
Insted of bloating the containing structure with it all the time this allocates struct opal_dev dynamically. Additionally this allows moving the definition of struct opal_dev into sed-opal.c. For this a new private data field is added to it that is passed to the send/receive callback. After that a lot of internals can be made private as well. Signed-off-by: Christoph Hellwig <hch@lst.de> Tested-by: Scott Bauer <scott.bauer@intel.com> Reviewed-by: Scott Bauer <scott.bauer@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2489 lines
59 KiB
C
2489 lines
59 KiB
C
/*
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* Copyright © 2016 Intel Corporation
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*
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* Authors:
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* Scott Bauer <scott.bauer@intel.com>
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* Rafael Antognolli <rafael.antognolli@intel.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*/
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#define pr_fmt(fmt) KBUILD_MODNAME ":OPAL: " fmt
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#include <linux/delay.h>
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#include <linux/device.h>
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#include <linux/kernel.h>
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#include <linux/list.h>
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#include <linux/genhd.h>
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#include <linux/slab.h>
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#include <linux/uaccess.h>
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#include <uapi/linux/sed-opal.h>
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#include <linux/sed-opal.h>
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#include <linux/string.h>
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#include <linux/kdev_t.h>
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#include "opal_proto.h"
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#define IO_BUFFER_LENGTH 2048
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#define MAX_TOKS 64
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typedef int (*opal_step)(struct opal_dev *dev);
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enum opal_atom_width {
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OPAL_WIDTH_TINY,
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OPAL_WIDTH_SHORT,
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OPAL_WIDTH_MEDIUM,
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OPAL_WIDTH_LONG,
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OPAL_WIDTH_TOKEN
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};
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/*
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* On the parsed response, we don't store again the toks that are already
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* stored in the response buffer. Instead, for each token, we just store a
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* pointer to the position in the buffer where the token starts, and the size
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* of the token in bytes.
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*/
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struct opal_resp_tok {
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const u8 *pos;
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size_t len;
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enum opal_response_token type;
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enum opal_atom_width width;
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union {
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u64 u;
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s64 s;
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} stored;
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};
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/*
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* From the response header it's not possible to know how many tokens there are
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* on the payload. So we hardcode that the maximum will be MAX_TOKS, and later
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* if we start dealing with messages that have more than that, we can increase
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* this number. This is done to avoid having to make two passes through the
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* response, the first one counting how many tokens we have and the second one
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* actually storing the positions.
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*/
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struct parsed_resp {
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int num;
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struct opal_resp_tok toks[MAX_TOKS];
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};
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struct opal_dev {
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bool supported;
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void *data;
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sec_send_recv *send_recv;
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const opal_step *funcs;
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void **func_data;
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int state;
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struct mutex dev_lock;
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u16 comid;
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u32 hsn;
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u32 tsn;
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u64 align;
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u64 lowest_lba;
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size_t pos;
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u8 cmd[IO_BUFFER_LENGTH];
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u8 resp[IO_BUFFER_LENGTH];
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struct parsed_resp parsed;
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size_t prev_d_len;
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void *prev_data;
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struct list_head unlk_lst;
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};
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static const u8 opaluid[][OPAL_UID_LENGTH] = {
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/* users */
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[OPAL_SMUID_UID] =
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff },
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[OPAL_THISSP_UID] =
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 },
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[OPAL_ADMINSP_UID] =
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{ 0x00, 0x00, 0x02, 0x05, 0x00, 0x00, 0x00, 0x01 },
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[OPAL_LOCKINGSP_UID] =
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{ 0x00, 0x00, 0x02, 0x05, 0x00, 0x00, 0x00, 0x02 },
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[OPAL_ENTERPRISE_LOCKINGSP_UID] =
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{ 0x00, 0x00, 0x02, 0x05, 0x00, 0x01, 0x00, 0x01 },
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[OPAL_ANYBODY_UID] =
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{ 0x00, 0x00, 0x00, 0x09, 0x00, 0x00, 0x00, 0x01 },
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[OPAL_SID_UID] =
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{ 0x00, 0x00, 0x00, 0x09, 0x00, 0x00, 0x00, 0x06 },
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[OPAL_ADMIN1_UID] =
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{ 0x00, 0x00, 0x00, 0x09, 0x00, 0x01, 0x00, 0x01 },
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[OPAL_USER1_UID] =
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{ 0x00, 0x00, 0x00, 0x09, 0x00, 0x03, 0x00, 0x01 },
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[OPAL_USER2_UID] =
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{ 0x00, 0x00, 0x00, 0x09, 0x00, 0x03, 0x00, 0x02 },
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[OPAL_PSID_UID] =
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{ 0x00, 0x00, 0x00, 0x09, 0x00, 0x01, 0xff, 0x01 },
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[OPAL_ENTERPRISE_BANDMASTER0_UID] =
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{ 0x00, 0x00, 0x00, 0x09, 0x00, 0x00, 0x80, 0x01 },
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[OPAL_ENTERPRISE_ERASEMASTER_UID] =
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{ 0x00, 0x00, 0x00, 0x09, 0x00, 0x00, 0x84, 0x01 },
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/* tables */
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[OPAL_LOCKINGRANGE_GLOBAL] =
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{ 0x00, 0x00, 0x08, 0x02, 0x00, 0x00, 0x00, 0x01 },
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[OPAL_LOCKINGRANGE_ACE_RDLOCKED] =
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{ 0x00, 0x00, 0x00, 0x08, 0x00, 0x03, 0xE0, 0x01 },
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[OPAL_LOCKINGRANGE_ACE_WRLOCKED] =
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{ 0x00, 0x00, 0x00, 0x08, 0x00, 0x03, 0xE8, 0x01 },
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[OPAL_MBRCONTROL] =
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{ 0x00, 0x00, 0x08, 0x03, 0x00, 0x00, 0x00, 0x01 },
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[OPAL_MBR] =
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{ 0x00, 0x00, 0x08, 0x04, 0x00, 0x00, 0x00, 0x00 },
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[OPAL_AUTHORITY_TABLE] =
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{ 0x00, 0x00, 0x00, 0x09, 0x00, 0x00, 0x00, 0x00},
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[OPAL_C_PIN_TABLE] =
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{ 0x00, 0x00, 0x00, 0x0B, 0x00, 0x00, 0x00, 0x00},
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[OPAL_LOCKING_INFO_TABLE] =
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{ 0x00, 0x00, 0x08, 0x01, 0x00, 0x00, 0x00, 0x01 },
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[OPAL_ENTERPRISE_LOCKING_INFO_TABLE] =
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{ 0x00, 0x00, 0x08, 0x01, 0x00, 0x00, 0x00, 0x00 },
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/* C_PIN_TABLE object ID's */
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[OPAL_C_PIN_MSID] =
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{ 0x00, 0x00, 0x00, 0x0B, 0x00, 0x00, 0x84, 0x02},
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[OPAL_C_PIN_SID] =
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{ 0x00, 0x00, 0x00, 0x0B, 0x00, 0x00, 0x00, 0x01},
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[OPAL_C_PIN_ADMIN1] =
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{ 0x00, 0x00, 0x00, 0x0B, 0x00, 0x01, 0x00, 0x01},
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/* half UID's (only first 4 bytes used) */
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[OPAL_HALF_UID_AUTHORITY_OBJ_REF] =
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{ 0x00, 0x00, 0x0C, 0x05, 0xff, 0xff, 0xff, 0xff },
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[OPAL_HALF_UID_BOOLEAN_ACE] =
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{ 0x00, 0x00, 0x04, 0x0E, 0xff, 0xff, 0xff, 0xff },
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/* special value for omitted optional parameter */
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[OPAL_UID_HEXFF] =
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{ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff},
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};
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/*
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* TCG Storage SSC Methods.
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* Derived from: TCG_Storage_Architecture_Core_Spec_v2.01_r1.00
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* Section: 6.3 Assigned UIDs
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*/
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static const u8 opalmethod[][OPAL_UID_LENGTH] = {
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[OPAL_PROPERTIES] =
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x01 },
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[OPAL_STARTSESSION] =
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{ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0x02 },
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[OPAL_REVERT] =
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{ 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x02, 0x02 },
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[OPAL_ACTIVATE] =
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{ 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x02, 0x03 },
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[OPAL_EGET] =
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{ 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x06 },
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[OPAL_ESET] =
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{ 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x07 },
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[OPAL_NEXT] =
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{ 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x08 },
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[OPAL_EAUTHENTICATE] =
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{ 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x0c },
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[OPAL_GETACL] =
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{ 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x0d },
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[OPAL_GENKEY] =
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{ 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x10 },
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[OPAL_REVERTSP] =
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{ 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x11 },
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[OPAL_GET] =
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{ 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x16 },
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[OPAL_SET] =
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{ 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x17 },
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[OPAL_AUTHENTICATE] =
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{ 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x00, 0x1c },
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[OPAL_RANDOM] =
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{ 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x06, 0x01 },
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[OPAL_ERASE] =
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{ 0x00, 0x00, 0x00, 0x06, 0x00, 0x00, 0x08, 0x03 },
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};
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typedef int (cont_fn)(struct opal_dev *dev);
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static int end_opal_session_error(struct opal_dev *dev);
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struct opal_suspend_data {
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struct opal_lock_unlock unlk;
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u8 lr;
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struct list_head node;
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};
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/*
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* Derived from:
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* TCG_Storage_Architecture_Core_Spec_v2.01_r1.00
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* Section: 5.1.5 Method Status Codes
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*/
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static const char * const opal_errors[] = {
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"Success",
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"Not Authorized",
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"Unknown Error",
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"SP Busy",
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"SP Failed",
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"SP Disabled",
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"SP Frozen",
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"No Sessions Available",
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"Uniqueness Conflict",
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"Insufficient Space",
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"Insufficient Rows",
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"Invalid Function",
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"Invalid Parameter",
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"Invalid Reference",
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"Unknown Error",
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"TPER Malfunction",
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"Transaction Failure",
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"Response Overflow",
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"Authority Locked Out",
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};
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static const char *opal_error_to_human(int error)
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{
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if (error == 0x3f)
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return "Failed";
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if (error >= ARRAY_SIZE(opal_errors) || error < 0)
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return "Unknown Error";
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return opal_errors[error];
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}
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static void print_buffer(const u8 *ptr, u32 length)
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{
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#ifdef DEBUG
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print_hex_dump_bytes("OPAL: ", DUMP_PREFIX_OFFSET, ptr, length);
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pr_debug("\n");
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#endif
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}
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static bool check_tper(const void *data)
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{
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const struct d0_tper_features *tper = data;
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u8 flags = tper->supported_features;
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if (!(flags & TPER_SYNC_SUPPORTED)) {
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pr_err("TPer sync not supported. flags = %d\n",
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tper->supported_features);
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return false;
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}
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return true;
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}
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static bool check_sum(const void *data)
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{
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const struct d0_single_user_mode *sum = data;
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u32 nlo = be32_to_cpu(sum->num_locking_objects);
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if (nlo == 0) {
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pr_err("Need at least one locking object.\n");
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return false;
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}
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pr_debug("Number of locking objects: %d\n", nlo);
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return true;
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}
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static u16 get_comid_v100(const void *data)
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{
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const struct d0_opal_v100 *v100 = data;
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return be16_to_cpu(v100->baseComID);
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}
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static u16 get_comid_v200(const void *data)
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{
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const struct d0_opal_v200 *v200 = data;
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return be16_to_cpu(v200->baseComID);
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}
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static int opal_send_cmd(struct opal_dev *dev)
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{
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return dev->send_recv(dev->data, dev->comid, TCG_SECP_01,
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dev->cmd, IO_BUFFER_LENGTH,
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true);
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}
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static int opal_recv_cmd(struct opal_dev *dev)
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{
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return dev->send_recv(dev->data, dev->comid, TCG_SECP_01,
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dev->resp, IO_BUFFER_LENGTH,
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false);
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}
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static int opal_recv_check(struct opal_dev *dev)
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{
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size_t buflen = IO_BUFFER_LENGTH;
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void *buffer = dev->resp;
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struct opal_header *hdr = buffer;
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int ret;
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do {
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pr_debug("Sent OPAL command: outstanding=%d, minTransfer=%d\n",
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hdr->cp.outstandingData,
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hdr->cp.minTransfer);
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if (hdr->cp.outstandingData == 0 ||
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hdr->cp.minTransfer != 0)
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return 0;
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memset(buffer, 0, buflen);
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ret = opal_recv_cmd(dev);
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} while (!ret);
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return ret;
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}
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static int opal_send_recv(struct opal_dev *dev, cont_fn *cont)
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{
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int ret;
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ret = opal_send_cmd(dev);
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if (ret)
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return ret;
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ret = opal_recv_cmd(dev);
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if (ret)
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return ret;
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ret = opal_recv_check(dev);
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if (ret)
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return ret;
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return cont(dev);
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}
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static void check_geometry(struct opal_dev *dev, const void *data)
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{
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const struct d0_geometry_features *geo = data;
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dev->align = geo->alignment_granularity;
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dev->lowest_lba = geo->lowest_aligned_lba;
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}
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static int next(struct opal_dev *dev)
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{
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opal_step func;
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int error = 0;
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do {
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func = dev->funcs[dev->state];
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if (!func)
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break;
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error = func(dev);
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if (error) {
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pr_err("Error on step function: %d with error %d: %s\n",
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dev->state, error,
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opal_error_to_human(error));
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/* For each OPAL command we do a discovery0 then we
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* start some sort of session.
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* If we haven't passed state 1 then there was an error
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* on discovery0 or during the attempt to start a
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* session. Therefore we shouldn't attempt to terminate
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* a session, as one has not yet been created.
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*/
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if (dev->state > 1)
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return end_opal_session_error(dev);
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}
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dev->state++;
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} while (!error);
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return error;
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}
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static int opal_discovery0_end(struct opal_dev *dev)
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{
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bool found_com_id = false, supported = true, single_user = false;
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const struct d0_header *hdr = (struct d0_header *)dev->resp;
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const u8 *epos = dev->resp, *cpos = dev->resp;
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u16 comid = 0;
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print_buffer(dev->resp, be32_to_cpu(hdr->length));
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epos += be32_to_cpu(hdr->length); /* end of buffer */
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cpos += sizeof(*hdr); /* current position on buffer */
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while (cpos < epos && supported) {
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const struct d0_features *body =
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(const struct d0_features *)cpos;
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switch (be16_to_cpu(body->code)) {
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case FC_TPER:
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supported = check_tper(body->features);
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break;
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case FC_SINGLEUSER:
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single_user = check_sum(body->features);
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break;
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case FC_GEOMETRY:
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check_geometry(dev, body);
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break;
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case FC_LOCKING:
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case FC_ENTERPRISE:
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case FC_DATASTORE:
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/* some ignored properties */
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pr_debug("Found OPAL feature description: %d\n",
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be16_to_cpu(body->code));
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break;
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case FC_OPALV100:
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comid = get_comid_v100(body->features);
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found_com_id = true;
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break;
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case FC_OPALV200:
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comid = get_comid_v200(body->features);
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found_com_id = true;
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break;
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case 0xbfff ... 0xffff:
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/* vendor specific, just ignore */
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break;
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default:
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pr_debug("OPAL Unknown feature: %d\n",
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be16_to_cpu(body->code));
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}
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cpos += body->length + 4;
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}
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if (!supported) {
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pr_debug("This device is not Opal enabled. Not Supported!\n");
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return -EOPNOTSUPP;
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}
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if (!single_user)
|
|
pr_debug("Device doesn't support single user mode\n");
|
|
|
|
|
|
if (!found_com_id) {
|
|
pr_debug("Could not find OPAL comid for device. Returning early\n");
|
|
return -EOPNOTSUPP;;
|
|
}
|
|
|
|
dev->comid = comid;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int opal_discovery0(struct opal_dev *dev)
|
|
{
|
|
int ret;
|
|
|
|
memset(dev->resp, 0, IO_BUFFER_LENGTH);
|
|
dev->comid = OPAL_DISCOVERY_COMID;
|
|
ret = opal_recv_cmd(dev);
|
|
if (ret)
|
|
return ret;
|
|
return opal_discovery0_end(dev);
|
|
}
|
|
|
|
static void add_token_u8(int *err, struct opal_dev *cmd, u8 tok)
|
|
{
|
|
if (*err)
|
|
return;
|
|
if (cmd->pos >= IO_BUFFER_LENGTH - 1) {
|
|
pr_err("Error adding u8: end of buffer.\n");
|
|
*err = -ERANGE;
|
|
return;
|
|
}
|
|
cmd->cmd[cmd->pos++] = tok;
|
|
}
|
|
|
|
static void add_short_atom_header(struct opal_dev *cmd, bool bytestring,
|
|
bool has_sign, int len)
|
|
{
|
|
u8 atom;
|
|
int err = 0;
|
|
|
|
atom = SHORT_ATOM_ID;
|
|
atom |= bytestring ? SHORT_ATOM_BYTESTRING : 0;
|
|
atom |= has_sign ? SHORT_ATOM_SIGNED : 0;
|
|
atom |= len & SHORT_ATOM_LEN_MASK;
|
|
|
|
add_token_u8(&err, cmd, atom);
|
|
}
|
|
|
|
static void add_medium_atom_header(struct opal_dev *cmd, bool bytestring,
|
|
bool has_sign, int len)
|
|
{
|
|
u8 header0;
|
|
|
|
header0 = MEDIUM_ATOM_ID;
|
|
header0 |= bytestring ? MEDIUM_ATOM_BYTESTRING : 0;
|
|
header0 |= has_sign ? MEDIUM_ATOM_SIGNED : 0;
|
|
header0 |= (len >> 8) & MEDIUM_ATOM_LEN_MASK;
|
|
cmd->cmd[cmd->pos++] = header0;
|
|
cmd->cmd[cmd->pos++] = len;
|
|
}
|
|
|
|
static void add_token_u64(int *err, struct opal_dev *cmd, u64 number)
|
|
{
|
|
|
|
size_t len;
|
|
int msb;
|
|
u8 n;
|
|
|
|
if (!(number & ~TINY_ATOM_DATA_MASK)) {
|
|
add_token_u8(err, cmd, number);
|
|
return;
|
|
}
|
|
|
|
msb = fls(number);
|
|
len = DIV_ROUND_UP(msb, 4);
|
|
|
|
if (cmd->pos >= IO_BUFFER_LENGTH - len - 1) {
|
|
pr_err("Error adding u64: end of buffer.\n");
|
|
*err = -ERANGE;
|
|
return;
|
|
}
|
|
add_short_atom_header(cmd, false, false, len);
|
|
while (len--) {
|
|
n = number >> (len * 8);
|
|
add_token_u8(err, cmd, n);
|
|
}
|
|
}
|
|
|
|
static void add_token_bytestring(int *err, struct opal_dev *cmd,
|
|
const u8 *bytestring, size_t len)
|
|
{
|
|
size_t header_len = 1;
|
|
bool is_short_atom = true;
|
|
|
|
if (*err)
|
|
return;
|
|
|
|
if (len & ~SHORT_ATOM_LEN_MASK) {
|
|
header_len = 2;
|
|
is_short_atom = false;
|
|
}
|
|
|
|
if (len >= IO_BUFFER_LENGTH - cmd->pos - header_len) {
|
|
pr_err("Error adding bytestring: end of buffer.\n");
|
|
*err = -ERANGE;
|
|
return;
|
|
}
|
|
|
|
if (is_short_atom)
|
|
add_short_atom_header(cmd, true, false, len);
|
|
else
|
|
add_medium_atom_header(cmd, true, false, len);
|
|
|
|
memcpy(&cmd->cmd[cmd->pos], bytestring, len);
|
|
cmd->pos += len;
|
|
|
|
}
|
|
|
|
static int build_locking_range(u8 *buffer, size_t length, u8 lr)
|
|
{
|
|
if (length > OPAL_UID_LENGTH) {
|
|
pr_err("Can't build locking range. Length OOB\n");
|
|
return -ERANGE;
|
|
}
|
|
|
|
memcpy(buffer, opaluid[OPAL_LOCKINGRANGE_GLOBAL], OPAL_UID_LENGTH);
|
|
|
|
if (lr == 0)
|
|
return 0;
|
|
buffer[5] = LOCKING_RANGE_NON_GLOBAL;
|
|
buffer[7] = lr;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int build_locking_user(u8 *buffer, size_t length, u8 lr)
|
|
{
|
|
if (length > OPAL_UID_LENGTH) {
|
|
pr_err("Can't build locking range user, Length OOB\n");
|
|
return -ERANGE;
|
|
}
|
|
|
|
memcpy(buffer, opaluid[OPAL_USER1_UID], OPAL_UID_LENGTH);
|
|
|
|
buffer[7] = lr + 1;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void set_comid(struct opal_dev *cmd, u16 comid)
|
|
{
|
|
struct opal_header *hdr = (struct opal_header *)cmd->cmd;
|
|
|
|
hdr->cp.extendedComID[0] = comid >> 8;
|
|
hdr->cp.extendedComID[1] = comid;
|
|
hdr->cp.extendedComID[2] = 0;
|
|
hdr->cp.extendedComID[3] = 0;
|
|
}
|
|
|
|
static int cmd_finalize(struct opal_dev *cmd, u32 hsn, u32 tsn)
|
|
{
|
|
struct opal_header *hdr;
|
|
int err = 0;
|
|
|
|
add_token_u8(&err, cmd, OPAL_ENDOFDATA);
|
|
add_token_u8(&err, cmd, OPAL_STARTLIST);
|
|
add_token_u8(&err, cmd, 0);
|
|
add_token_u8(&err, cmd, 0);
|
|
add_token_u8(&err, cmd, 0);
|
|
add_token_u8(&err, cmd, OPAL_ENDLIST);
|
|
|
|
if (err) {
|
|
pr_err("Error finalizing command.\n");
|
|
return -EFAULT;
|
|
}
|
|
|
|
hdr = (struct opal_header *) cmd->cmd;
|
|
|
|
hdr->pkt.tsn = cpu_to_be32(tsn);
|
|
hdr->pkt.hsn = cpu_to_be32(hsn);
|
|
|
|
hdr->subpkt.length = cpu_to_be32(cmd->pos - sizeof(*hdr));
|
|
while (cmd->pos % 4) {
|
|
if (cmd->pos >= IO_BUFFER_LENGTH) {
|
|
pr_err("Error: Buffer overrun\n");
|
|
return -ERANGE;
|
|
}
|
|
cmd->cmd[cmd->pos++] = 0;
|
|
}
|
|
hdr->pkt.length = cpu_to_be32(cmd->pos - sizeof(hdr->cp) -
|
|
sizeof(hdr->pkt));
|
|
hdr->cp.length = cpu_to_be32(cmd->pos - sizeof(hdr->cp));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static enum opal_response_token token_type(const struct parsed_resp *resp,
|
|
int n)
|
|
{
|
|
const struct opal_resp_tok *tok;
|
|
|
|
if (n >= resp->num) {
|
|
pr_err("Token number doesn't exist: %d, resp: %d\n",
|
|
n, resp->num);
|
|
return OPAL_DTA_TOKENID_INVALID;
|
|
}
|
|
|
|
tok = &resp->toks[n];
|
|
if (tok->len == 0) {
|
|
pr_err("Token length must be non-zero\n");
|
|
return OPAL_DTA_TOKENID_INVALID;
|
|
}
|
|
|
|
return tok->type;
|
|
}
|
|
|
|
/*
|
|
* This function returns 0 in case of invalid token. One should call
|
|
* token_type() first to find out if the token is valid or not.
|
|
*/
|
|
static enum opal_token response_get_token(const struct parsed_resp *resp,
|
|
int n)
|
|
{
|
|
const struct opal_resp_tok *tok;
|
|
|
|
if (n >= resp->num) {
|
|
pr_err("Token number doesn't exist: %d, resp: %d\n",
|
|
n, resp->num);
|
|
return 0;
|
|
}
|
|
|
|
tok = &resp->toks[n];
|
|
if (tok->len == 0) {
|
|
pr_err("Token length must be non-zero\n");
|
|
return 0;
|
|
}
|
|
|
|
return tok->pos[0];
|
|
}
|
|
|
|
static size_t response_parse_tiny(struct opal_resp_tok *tok,
|
|
const u8 *pos)
|
|
{
|
|
tok->pos = pos;
|
|
tok->len = 1;
|
|
tok->width = OPAL_WIDTH_TINY;
|
|
|
|
if (pos[0] & TINY_ATOM_SIGNED) {
|
|
tok->type = OPAL_DTA_TOKENID_SINT;
|
|
} else {
|
|
tok->type = OPAL_DTA_TOKENID_UINT;
|
|
tok->stored.u = pos[0] & 0x3f;
|
|
}
|
|
|
|
return tok->len;
|
|
}
|
|
|
|
static size_t response_parse_short(struct opal_resp_tok *tok,
|
|
const u8 *pos)
|
|
{
|
|
tok->pos = pos;
|
|
tok->len = (pos[0] & SHORT_ATOM_LEN_MASK) + 1;
|
|
tok->width = OPAL_WIDTH_SHORT;
|
|
|
|
if (pos[0] & SHORT_ATOM_BYTESTRING) {
|
|
tok->type = OPAL_DTA_TOKENID_BYTESTRING;
|
|
} else if (pos[0] & SHORT_ATOM_SIGNED) {
|
|
tok->type = OPAL_DTA_TOKENID_SINT;
|
|
} else {
|
|
u64 u_integer = 0;
|
|
int i, b = 0;
|
|
|
|
tok->type = OPAL_DTA_TOKENID_UINT;
|
|
if (tok->len > 9) {
|
|
pr_warn("uint64 with more than 8 bytes\n");
|
|
return -EINVAL;
|
|
}
|
|
for (i = tok->len - 1; i > 0; i--) {
|
|
u_integer |= ((u64)pos[i] << (8 * b));
|
|
b++;
|
|
}
|
|
tok->stored.u = u_integer;
|
|
}
|
|
|
|
return tok->len;
|
|
}
|
|
|
|
static size_t response_parse_medium(struct opal_resp_tok *tok,
|
|
const u8 *pos)
|
|
{
|
|
tok->pos = pos;
|
|
tok->len = (((pos[0] & MEDIUM_ATOM_LEN_MASK) << 8) | pos[1]) + 2;
|
|
tok->width = OPAL_WIDTH_MEDIUM;
|
|
|
|
if (pos[0] & MEDIUM_ATOM_BYTESTRING)
|
|
tok->type = OPAL_DTA_TOKENID_BYTESTRING;
|
|
else if (pos[0] & MEDIUM_ATOM_SIGNED)
|
|
tok->type = OPAL_DTA_TOKENID_SINT;
|
|
else
|
|
tok->type = OPAL_DTA_TOKENID_UINT;
|
|
|
|
return tok->len;
|
|
}
|
|
|
|
static size_t response_parse_long(struct opal_resp_tok *tok,
|
|
const u8 *pos)
|
|
{
|
|
tok->pos = pos;
|
|
tok->len = ((pos[1] << 16) | (pos[2] << 8) | pos[3]) + 4;
|
|
tok->width = OPAL_WIDTH_LONG;
|
|
|
|
if (pos[0] & LONG_ATOM_BYTESTRING)
|
|
tok->type = OPAL_DTA_TOKENID_BYTESTRING;
|
|
else if (pos[0] & LONG_ATOM_SIGNED)
|
|
tok->type = OPAL_DTA_TOKENID_SINT;
|
|
else
|
|
tok->type = OPAL_DTA_TOKENID_UINT;
|
|
|
|
return tok->len;
|
|
}
|
|
|
|
static size_t response_parse_token(struct opal_resp_tok *tok,
|
|
const u8 *pos)
|
|
{
|
|
tok->pos = pos;
|
|
tok->len = 1;
|
|
tok->type = OPAL_DTA_TOKENID_TOKEN;
|
|
tok->width = OPAL_WIDTH_TOKEN;
|
|
|
|
return tok->len;
|
|
}
|
|
|
|
static int response_parse(const u8 *buf, size_t length,
|
|
struct parsed_resp *resp)
|
|
{
|
|
const struct opal_header *hdr;
|
|
struct opal_resp_tok *iter;
|
|
int num_entries = 0;
|
|
int total;
|
|
size_t token_length;
|
|
const u8 *pos;
|
|
|
|
if (!buf)
|
|
return -EFAULT;
|
|
|
|
if (!resp)
|
|
return -EFAULT;
|
|
|
|
hdr = (struct opal_header *)buf;
|
|
pos = buf;
|
|
pos += sizeof(*hdr);
|
|
|
|
pr_debug("Response size: cp: %d, pkt: %d, subpkt: %d\n",
|
|
be32_to_cpu(hdr->cp.length),
|
|
be32_to_cpu(hdr->pkt.length),
|
|
be32_to_cpu(hdr->subpkt.length));
|
|
|
|
if (hdr->cp.length == 0 || hdr->pkt.length == 0 ||
|
|
hdr->subpkt.length == 0) {
|
|
pr_err("Bad header length. cp: %d, pkt: %d, subpkt: %d\n",
|
|
be32_to_cpu(hdr->cp.length),
|
|
be32_to_cpu(hdr->pkt.length),
|
|
be32_to_cpu(hdr->subpkt.length));
|
|
print_buffer(pos, sizeof(*hdr));
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (pos > buf + length)
|
|
return -EFAULT;
|
|
|
|
iter = resp->toks;
|
|
total = be32_to_cpu(hdr->subpkt.length);
|
|
print_buffer(pos, total);
|
|
while (total > 0) {
|
|
if (pos[0] <= TINY_ATOM_BYTE) /* tiny atom */
|
|
token_length = response_parse_tiny(iter, pos);
|
|
else if (pos[0] <= SHORT_ATOM_BYTE) /* short atom */
|
|
token_length = response_parse_short(iter, pos);
|
|
else if (pos[0] <= MEDIUM_ATOM_BYTE) /* medium atom */
|
|
token_length = response_parse_medium(iter, pos);
|
|
else if (pos[0] <= LONG_ATOM_BYTE) /* long atom */
|
|
token_length = response_parse_long(iter, pos);
|
|
else /* TOKEN */
|
|
token_length = response_parse_token(iter, pos);
|
|
|
|
if (token_length == -EINVAL)
|
|
return -EINVAL;
|
|
|
|
pos += token_length;
|
|
total -= token_length;
|
|
iter++;
|
|
num_entries++;
|
|
}
|
|
|
|
if (num_entries == 0) {
|
|
pr_err("Couldn't parse response.\n");
|
|
return -EINVAL;
|
|
}
|
|
resp->num = num_entries;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static size_t response_get_string(const struct parsed_resp *resp, int n,
|
|
const char **store)
|
|
{
|
|
*store = NULL;
|
|
if (!resp) {
|
|
pr_err("Response is NULL\n");
|
|
return 0;
|
|
}
|
|
|
|
if (n > resp->num) {
|
|
pr_err("Response has %d tokens. Can't access %d\n",
|
|
resp->num, n);
|
|
return 0;
|
|
}
|
|
|
|
if (resp->toks[n].type != OPAL_DTA_TOKENID_BYTESTRING) {
|
|
pr_err("Token is not a byte string!\n");
|
|
return 0;
|
|
}
|
|
|
|
*store = resp->toks[n].pos + 1;
|
|
return resp->toks[n].len - 1;
|
|
}
|
|
|
|
static u64 response_get_u64(const struct parsed_resp *resp, int n)
|
|
{
|
|
if (!resp) {
|
|
pr_err("Response is NULL\n");
|
|
return 0;
|
|
}
|
|
|
|
if (n > resp->num) {
|
|
pr_err("Response has %d tokens. Can't access %d\n",
|
|
resp->num, n);
|
|
return 0;
|
|
}
|
|
|
|
if (resp->toks[n].type != OPAL_DTA_TOKENID_UINT) {
|
|
pr_err("Token is not unsigned it: %d\n",
|
|
resp->toks[n].type);
|
|
return 0;
|
|
}
|
|
|
|
if (!(resp->toks[n].width == OPAL_WIDTH_TINY ||
|
|
resp->toks[n].width == OPAL_WIDTH_SHORT)) {
|
|
pr_err("Atom is not short or tiny: %d\n",
|
|
resp->toks[n].width);
|
|
return 0;
|
|
}
|
|
|
|
return resp->toks[n].stored.u;
|
|
}
|
|
|
|
static u8 response_status(const struct parsed_resp *resp)
|
|
{
|
|
if (token_type(resp, 0) == OPAL_DTA_TOKENID_TOKEN &&
|
|
response_get_token(resp, 0) == OPAL_ENDOFSESSION) {
|
|
return 0;
|
|
}
|
|
|
|
if (resp->num < 5)
|
|
return DTAERROR_NO_METHOD_STATUS;
|
|
|
|
if (token_type(resp, resp->num - 1) != OPAL_DTA_TOKENID_TOKEN ||
|
|
token_type(resp, resp->num - 5) != OPAL_DTA_TOKENID_TOKEN ||
|
|
response_get_token(resp, resp->num - 1) != OPAL_ENDLIST ||
|
|
response_get_token(resp, resp->num - 5) != OPAL_STARTLIST)
|
|
return DTAERROR_NO_METHOD_STATUS;
|
|
|
|
return response_get_u64(resp, resp->num - 4);
|
|
}
|
|
|
|
/* Parses and checks for errors */
|
|
static int parse_and_check_status(struct opal_dev *dev)
|
|
{
|
|
int error;
|
|
|
|
print_buffer(dev->cmd, dev->pos);
|
|
|
|
error = response_parse(dev->resp, IO_BUFFER_LENGTH, &dev->parsed);
|
|
if (error) {
|
|
pr_err("Couldn't parse response.\n");
|
|
return error;
|
|
}
|
|
|
|
return response_status(&dev->parsed);
|
|
}
|
|
|
|
static void clear_opal_cmd(struct opal_dev *dev)
|
|
{
|
|
dev->pos = sizeof(struct opal_header);
|
|
memset(dev->cmd, 0, IO_BUFFER_LENGTH);
|
|
}
|
|
|
|
static int start_opal_session_cont(struct opal_dev *dev)
|
|
{
|
|
u32 hsn, tsn;
|
|
int error = 0;
|
|
|
|
error = parse_and_check_status(dev);
|
|
if (error)
|
|
return error;
|
|
|
|
hsn = response_get_u64(&dev->parsed, 4);
|
|
tsn = response_get_u64(&dev->parsed, 5);
|
|
|
|
if (hsn == 0 && tsn == 0) {
|
|
pr_err("Couldn't authenticate session\n");
|
|
return -EPERM;
|
|
}
|
|
|
|
dev->hsn = hsn;
|
|
dev->tsn = tsn;
|
|
return 0;
|
|
}
|
|
|
|
static void add_suspend_info(struct opal_dev *dev,
|
|
struct opal_suspend_data *sus)
|
|
{
|
|
struct opal_suspend_data *iter;
|
|
|
|
list_for_each_entry(iter, &dev->unlk_lst, node) {
|
|
if (iter->lr == sus->lr) {
|
|
list_del(&iter->node);
|
|
kfree(iter);
|
|
break;
|
|
}
|
|
}
|
|
list_add_tail(&sus->node, &dev->unlk_lst);
|
|
}
|
|
|
|
static int end_session_cont(struct opal_dev *dev)
|
|
{
|
|
dev->hsn = 0;
|
|
dev->tsn = 0;
|
|
return parse_and_check_status(dev);
|
|
}
|
|
|
|
static int finalize_and_send(struct opal_dev *dev, cont_fn cont)
|
|
{
|
|
int ret;
|
|
|
|
ret = cmd_finalize(dev, dev->hsn, dev->tsn);
|
|
if (ret) {
|
|
pr_err("Error finalizing command buffer: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
print_buffer(dev->cmd, dev->pos);
|
|
|
|
return opal_send_recv(dev, cont);
|
|
}
|
|
|
|
static int gen_key(struct opal_dev *dev)
|
|
{
|
|
const u8 *method;
|
|
u8 uid[OPAL_UID_LENGTH];
|
|
int err = 0;
|
|
|
|
clear_opal_cmd(dev);
|
|
set_comid(dev, dev->comid);
|
|
|
|
memcpy(uid, dev->prev_data, min(sizeof(uid), dev->prev_d_len));
|
|
method = opalmethod[OPAL_GENKEY];
|
|
kfree(dev->prev_data);
|
|
dev->prev_data = NULL;
|
|
|
|
add_token_u8(&err, dev, OPAL_CALL);
|
|
add_token_bytestring(&err, dev, uid, OPAL_UID_LENGTH);
|
|
add_token_bytestring(&err, dev, opalmethod[OPAL_GENKEY],
|
|
OPAL_UID_LENGTH);
|
|
add_token_u8(&err, dev, OPAL_STARTLIST);
|
|
add_token_u8(&err, dev, OPAL_ENDLIST);
|
|
|
|
if (err) {
|
|
pr_err("Error building gen key command\n");
|
|
return err;
|
|
|
|
}
|
|
return finalize_and_send(dev, parse_and_check_status);
|
|
}
|
|
|
|
static int get_active_key_cont(struct opal_dev *dev)
|
|
{
|
|
const char *activekey;
|
|
size_t keylen;
|
|
int error = 0;
|
|
|
|
error = parse_and_check_status(dev);
|
|
if (error)
|
|
return error;
|
|
keylen = response_get_string(&dev->parsed, 4, &activekey);
|
|
if (!activekey) {
|
|
pr_err("%s: Couldn't extract the Activekey from the response\n",
|
|
__func__);
|
|
return OPAL_INVAL_PARAM;
|
|
}
|
|
dev->prev_data = kmemdup(activekey, keylen, GFP_KERNEL);
|
|
|
|
if (!dev->prev_data)
|
|
return -ENOMEM;
|
|
|
|
dev->prev_d_len = keylen;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int get_active_key(struct opal_dev *dev)
|
|
{
|
|
u8 uid[OPAL_UID_LENGTH];
|
|
int err = 0;
|
|
u8 *lr;
|
|
|
|
clear_opal_cmd(dev);
|
|
set_comid(dev, dev->comid);
|
|
lr = dev->func_data[dev->state];
|
|
|
|
err = build_locking_range(uid, sizeof(uid), *lr);
|
|
if (err)
|
|
return err;
|
|
|
|
err = 0;
|
|
add_token_u8(&err, dev, OPAL_CALL);
|
|
add_token_bytestring(&err, dev, uid, OPAL_UID_LENGTH);
|
|
add_token_bytestring(&err, dev, opalmethod[OPAL_GET], OPAL_UID_LENGTH);
|
|
add_token_u8(&err, dev, OPAL_STARTLIST);
|
|
add_token_u8(&err, dev, OPAL_STARTLIST);
|
|
add_token_u8(&err, dev, OPAL_STARTNAME);
|
|
add_token_u8(&err, dev, 3); /* startCloumn */
|
|
add_token_u8(&err, dev, 10); /* ActiveKey */
|
|
add_token_u8(&err, dev, OPAL_ENDNAME);
|
|
add_token_u8(&err, dev, OPAL_STARTNAME);
|
|
add_token_u8(&err, dev, 4); /* endColumn */
|
|
add_token_u8(&err, dev, 10); /* ActiveKey */
|
|
add_token_u8(&err, dev, OPAL_ENDNAME);
|
|
add_token_u8(&err, dev, OPAL_ENDLIST);
|
|
add_token_u8(&err, dev, OPAL_ENDLIST);
|
|
if (err) {
|
|
pr_err("Error building get active key command\n");
|
|
return err;
|
|
}
|
|
|
|
return finalize_and_send(dev, get_active_key_cont);
|
|
}
|
|
|
|
static int generic_lr_enable_disable(struct opal_dev *dev,
|
|
u8 *uid, bool rle, bool wle,
|
|
bool rl, bool wl)
|
|
{
|
|
int err = 0;
|
|
|
|
add_token_u8(&err, dev, OPAL_CALL);
|
|
add_token_bytestring(&err, dev, uid, OPAL_UID_LENGTH);
|
|
add_token_bytestring(&err, dev, opalmethod[OPAL_SET], OPAL_UID_LENGTH);
|
|
|
|
add_token_u8(&err, dev, OPAL_STARTLIST);
|
|
add_token_u8(&err, dev, OPAL_STARTNAME);
|
|
add_token_u8(&err, dev, OPAL_VALUES);
|
|
add_token_u8(&err, dev, OPAL_STARTLIST);
|
|
|
|
add_token_u8(&err, dev, OPAL_STARTNAME);
|
|
add_token_u8(&err, dev, 5); /* ReadLockEnabled */
|
|
add_token_u8(&err, dev, rle);
|
|
add_token_u8(&err, dev, OPAL_ENDNAME);
|
|
|
|
add_token_u8(&err, dev, OPAL_STARTNAME);
|
|
add_token_u8(&err, dev, 6); /* WriteLockEnabled */
|
|
add_token_u8(&err, dev, wle);
|
|
add_token_u8(&err, dev, OPAL_ENDNAME);
|
|
|
|
add_token_u8(&err, dev, OPAL_STARTNAME);
|
|
add_token_u8(&err, dev, OPAL_READLOCKED);
|
|
add_token_u8(&err, dev, rl);
|
|
add_token_u8(&err, dev, OPAL_ENDNAME);
|
|
|
|
add_token_u8(&err, dev, OPAL_STARTNAME);
|
|
add_token_u8(&err, dev, OPAL_WRITELOCKED);
|
|
add_token_u8(&err, dev, wl);
|
|
add_token_u8(&err, dev, OPAL_ENDNAME);
|
|
|
|
add_token_u8(&err, dev, OPAL_ENDLIST);
|
|
add_token_u8(&err, dev, OPAL_ENDNAME);
|
|
add_token_u8(&err, dev, OPAL_ENDLIST);
|
|
return err;
|
|
}
|
|
|
|
static inline int enable_global_lr(struct opal_dev *dev, u8 *uid,
|
|
struct opal_user_lr_setup *setup)
|
|
{
|
|
int err;
|
|
|
|
err = generic_lr_enable_disable(dev, uid, !!setup->RLE, !!setup->WLE,
|
|
0, 0);
|
|
if (err)
|
|
pr_err("Failed to create enable global lr command\n");
|
|
return err;
|
|
}
|
|
|
|
static int setup_locking_range(struct opal_dev *dev)
|
|
{
|
|
u8 uid[OPAL_UID_LENGTH];
|
|
struct opal_user_lr_setup *setup;
|
|
u8 lr;
|
|
int err = 0;
|
|
|
|
clear_opal_cmd(dev);
|
|
set_comid(dev, dev->comid);
|
|
|
|
setup = dev->func_data[dev->state];
|
|
lr = setup->session.opal_key.lr;
|
|
err = build_locking_range(uid, sizeof(uid), lr);
|
|
if (err)
|
|
return err;
|
|
|
|
if (lr == 0)
|
|
err = enable_global_lr(dev, uid, setup);
|
|
else {
|
|
add_token_u8(&err, dev, OPAL_CALL);
|
|
add_token_bytestring(&err, dev, uid, OPAL_UID_LENGTH);
|
|
add_token_bytestring(&err, dev, opalmethod[OPAL_SET],
|
|
OPAL_UID_LENGTH);
|
|
|
|
add_token_u8(&err, dev, OPAL_STARTLIST);
|
|
add_token_u8(&err, dev, OPAL_STARTNAME);
|
|
add_token_u8(&err, dev, OPAL_VALUES);
|
|
add_token_u8(&err, dev, OPAL_STARTLIST);
|
|
|
|
add_token_u8(&err, dev, OPAL_STARTNAME);
|
|
add_token_u8(&err, dev, 3); /* Ranges Start */
|
|
add_token_u64(&err, dev, setup->range_start);
|
|
add_token_u8(&err, dev, OPAL_ENDNAME);
|
|
|
|
add_token_u8(&err, dev, OPAL_STARTNAME);
|
|
add_token_u8(&err, dev, 4); /* Ranges length */
|
|
add_token_u64(&err, dev, setup->range_length);
|
|
add_token_u8(&err, dev, OPAL_ENDNAME);
|
|
|
|
add_token_u8(&err, dev, OPAL_STARTNAME);
|
|
add_token_u8(&err, dev, 5); /*ReadLockEnabled */
|
|
add_token_u64(&err, dev, !!setup->RLE);
|
|
add_token_u8(&err, dev, OPAL_ENDNAME);
|
|
|
|
add_token_u8(&err, dev, OPAL_STARTNAME);
|
|
add_token_u8(&err, dev, 6); /*WriteLockEnabled*/
|
|
add_token_u64(&err, dev, !!setup->WLE);
|
|
add_token_u8(&err, dev, OPAL_ENDNAME);
|
|
|
|
add_token_u8(&err, dev, OPAL_ENDLIST);
|
|
add_token_u8(&err, dev, OPAL_ENDNAME);
|
|
add_token_u8(&err, dev, OPAL_ENDLIST);
|
|
|
|
}
|
|
if (err) {
|
|
pr_err("Error building Setup Locking range command.\n");
|
|
return err;
|
|
|
|
}
|
|
|
|
return finalize_and_send(dev, parse_and_check_status);
|
|
}
|
|
|
|
static int start_generic_opal_session(struct opal_dev *dev,
|
|
enum opal_uid auth,
|
|
enum opal_uid sp_type,
|
|
const char *key,
|
|
u8 key_len)
|
|
{
|
|
u32 hsn;
|
|
int err = 0;
|
|
|
|
if (key == NULL && auth != OPAL_ANYBODY_UID) {
|
|
pr_err("%s: Attempted to open ADMIN_SP Session without a Host" \
|
|
"Challenge, and not as the Anybody UID\n", __func__);
|
|
return OPAL_INVAL_PARAM;
|
|
}
|
|
|
|
clear_opal_cmd(dev);
|
|
|
|
set_comid(dev, dev->comid);
|
|
hsn = GENERIC_HOST_SESSION_NUM;
|
|
|
|
add_token_u8(&err, dev, OPAL_CALL);
|
|
add_token_bytestring(&err, dev, opaluid[OPAL_SMUID_UID],
|
|
OPAL_UID_LENGTH);
|
|
add_token_bytestring(&err, dev, opalmethod[OPAL_STARTSESSION],
|
|
OPAL_UID_LENGTH);
|
|
add_token_u8(&err, dev, OPAL_STARTLIST);
|
|
add_token_u64(&err, dev, hsn);
|
|
add_token_bytestring(&err, dev, opaluid[sp_type], OPAL_UID_LENGTH);
|
|
add_token_u8(&err, dev, 1);
|
|
|
|
switch (auth) {
|
|
case OPAL_ANYBODY_UID:
|
|
add_token_u8(&err, dev, OPAL_ENDLIST);
|
|
break;
|
|
case OPAL_ADMIN1_UID:
|
|
case OPAL_SID_UID:
|
|
add_token_u8(&err, dev, OPAL_STARTNAME);
|
|
add_token_u8(&err, dev, 0); /* HostChallenge */
|
|
add_token_bytestring(&err, dev, key, key_len);
|
|
add_token_u8(&err, dev, OPAL_ENDNAME);
|
|
add_token_u8(&err, dev, OPAL_STARTNAME);
|
|
add_token_u8(&err, dev, 3); /* HostSignAuth */
|
|
add_token_bytestring(&err, dev, opaluid[auth],
|
|
OPAL_UID_LENGTH);
|
|
add_token_u8(&err, dev, OPAL_ENDNAME);
|
|
add_token_u8(&err, dev, OPAL_ENDLIST);
|
|
break;
|
|
default:
|
|
pr_err("Cannot start Admin SP session with auth %d\n", auth);
|
|
return OPAL_INVAL_PARAM;
|
|
}
|
|
|
|
if (err) {
|
|
pr_err("Error building start adminsp session command.\n");
|
|
return err;
|
|
}
|
|
|
|
return finalize_and_send(dev, start_opal_session_cont);
|
|
}
|
|
|
|
static int start_anybodyASP_opal_session(struct opal_dev *dev)
|
|
{
|
|
return start_generic_opal_session(dev, OPAL_ANYBODY_UID,
|
|
OPAL_ADMINSP_UID, NULL, 0);
|
|
}
|
|
|
|
static int start_SIDASP_opal_session(struct opal_dev *dev)
|
|
{
|
|
int ret;
|
|
const u8 *key = dev->prev_data;
|
|
struct opal_key *okey;
|
|
|
|
if (!key) {
|
|
okey = dev->func_data[dev->state];
|
|
ret = start_generic_opal_session(dev, OPAL_SID_UID,
|
|
OPAL_ADMINSP_UID,
|
|
okey->key,
|
|
okey->key_len);
|
|
} else {
|
|
ret = start_generic_opal_session(dev, OPAL_SID_UID,
|
|
OPAL_ADMINSP_UID,
|
|
key, dev->prev_d_len);
|
|
kfree(key);
|
|
dev->prev_data = NULL;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
static inline int start_admin1LSP_opal_session(struct opal_dev *dev)
|
|
{
|
|
struct opal_key *key = dev->func_data[dev->state];
|
|
|
|
return start_generic_opal_session(dev, OPAL_ADMIN1_UID,
|
|
OPAL_LOCKINGSP_UID,
|
|
key->key, key->key_len);
|
|
}
|
|
|
|
static int start_auth_opal_session(struct opal_dev *dev)
|
|
{
|
|
u8 lk_ul_user[OPAL_UID_LENGTH];
|
|
int err = 0;
|
|
|
|
struct opal_session_info *session = dev->func_data[dev->state];
|
|
size_t keylen = session->opal_key.key_len;
|
|
u8 *key = session->opal_key.key;
|
|
u32 hsn = GENERIC_HOST_SESSION_NUM;
|
|
|
|
clear_opal_cmd(dev);
|
|
set_comid(dev, dev->comid);
|
|
|
|
if (session->sum) {
|
|
err = build_locking_user(lk_ul_user, sizeof(lk_ul_user),
|
|
session->opal_key.lr);
|
|
if (err)
|
|
return err;
|
|
|
|
} else if (session->who != OPAL_ADMIN1 && !session->sum) {
|
|
err = build_locking_user(lk_ul_user, sizeof(lk_ul_user),
|
|
session->who - 1);
|
|
if (err)
|
|
return err;
|
|
} else
|
|
memcpy(lk_ul_user, opaluid[OPAL_ADMIN1_UID], OPAL_UID_LENGTH);
|
|
|
|
add_token_u8(&err, dev, OPAL_CALL);
|
|
add_token_bytestring(&err, dev, opaluid[OPAL_SMUID_UID],
|
|
OPAL_UID_LENGTH);
|
|
add_token_bytestring(&err, dev, opalmethod[OPAL_STARTSESSION],
|
|
OPAL_UID_LENGTH);
|
|
|
|
add_token_u8(&err, dev, OPAL_STARTLIST);
|
|
add_token_u64(&err, dev, hsn);
|
|
add_token_bytestring(&err, dev, opaluid[OPAL_LOCKINGSP_UID],
|
|
OPAL_UID_LENGTH);
|
|
add_token_u8(&err, dev, 1);
|
|
add_token_u8(&err, dev, OPAL_STARTNAME);
|
|
add_token_u8(&err, dev, 0);
|
|
add_token_bytestring(&err, dev, key, keylen);
|
|
add_token_u8(&err, dev, OPAL_ENDNAME);
|
|
add_token_u8(&err, dev, OPAL_STARTNAME);
|
|
add_token_u8(&err, dev, 3);
|
|
add_token_bytestring(&err, dev, lk_ul_user, OPAL_UID_LENGTH);
|
|
add_token_u8(&err, dev, OPAL_ENDNAME);
|
|
add_token_u8(&err, dev, OPAL_ENDLIST);
|
|
|
|
if (err) {
|
|
pr_err("Error building STARTSESSION command.\n");
|
|
return err;
|
|
}
|
|
|
|
return finalize_and_send(dev, start_opal_session_cont);
|
|
}
|
|
|
|
static int revert_tper(struct opal_dev *dev)
|
|
{
|
|
int err = 0;
|
|
|
|
clear_opal_cmd(dev);
|
|
set_comid(dev, dev->comid);
|
|
|
|
add_token_u8(&err, dev, OPAL_CALL);
|
|
add_token_bytestring(&err, dev, opaluid[OPAL_ADMINSP_UID],
|
|
OPAL_UID_LENGTH);
|
|
add_token_bytestring(&err, dev, opalmethod[OPAL_REVERT],
|
|
OPAL_UID_LENGTH);
|
|
add_token_u8(&err, dev, OPAL_STARTLIST);
|
|
add_token_u8(&err, dev, OPAL_ENDLIST);
|
|
if (err) {
|
|
pr_err("Error building REVERT TPER command.\n");
|
|
return err;
|
|
}
|
|
|
|
return finalize_and_send(dev, parse_and_check_status);
|
|
}
|
|
|
|
static int internal_activate_user(struct opal_dev *dev)
|
|
{
|
|
struct opal_session_info *session = dev->func_data[dev->state];
|
|
u8 uid[OPAL_UID_LENGTH];
|
|
int err = 0;
|
|
|
|
clear_opal_cmd(dev);
|
|
set_comid(dev, dev->comid);
|
|
|
|
memcpy(uid, opaluid[OPAL_USER1_UID], OPAL_UID_LENGTH);
|
|
uid[7] = session->who;
|
|
|
|
add_token_u8(&err, dev, OPAL_CALL);
|
|
add_token_bytestring(&err, dev, uid, OPAL_UID_LENGTH);
|
|
add_token_bytestring(&err, dev, opalmethod[OPAL_SET], OPAL_UID_LENGTH);
|
|
add_token_u8(&err, dev, OPAL_STARTLIST);
|
|
add_token_u8(&err, dev, OPAL_STARTNAME);
|
|
add_token_u8(&err, dev, OPAL_VALUES);
|
|
add_token_u8(&err, dev, OPAL_STARTLIST);
|
|
add_token_u8(&err, dev, OPAL_STARTNAME);
|
|
add_token_u8(&err, dev, 5); /* Enabled */
|
|
add_token_u8(&err, dev, OPAL_TRUE);
|
|
add_token_u8(&err, dev, OPAL_ENDNAME);
|
|
add_token_u8(&err, dev, OPAL_ENDLIST);
|
|
add_token_u8(&err, dev, OPAL_ENDNAME);
|
|
add_token_u8(&err, dev, OPAL_ENDLIST);
|
|
|
|
if (err) {
|
|
pr_err("Error building Activate UserN command.\n");
|
|
return err;
|
|
}
|
|
|
|
return finalize_and_send(dev, parse_and_check_status);
|
|
}
|
|
|
|
static int erase_locking_range(struct opal_dev *dev)
|
|
{
|
|
struct opal_session_info *session;
|
|
u8 uid[OPAL_UID_LENGTH];
|
|
int err = 0;
|
|
|
|
clear_opal_cmd(dev);
|
|
set_comid(dev, dev->comid);
|
|
session = dev->func_data[dev->state];
|
|
|
|
if (build_locking_range(uid, sizeof(uid), session->opal_key.lr) < 0)
|
|
return -ERANGE;
|
|
|
|
add_token_u8(&err, dev, OPAL_CALL);
|
|
add_token_bytestring(&err, dev, uid, OPAL_UID_LENGTH);
|
|
add_token_bytestring(&err, dev, opalmethod[OPAL_ERASE],
|
|
OPAL_UID_LENGTH);
|
|
add_token_u8(&err, dev, OPAL_STARTLIST);
|
|
add_token_u8(&err, dev, OPAL_ENDLIST);
|
|
|
|
if (err) {
|
|
pr_err("Error building Erase Locking Range Command.\n");
|
|
return err;
|
|
}
|
|
return finalize_and_send(dev, parse_and_check_status);
|
|
}
|
|
|
|
static int set_mbr_done(struct opal_dev *dev)
|
|
{
|
|
u8 mbr_done_tf = *(u8 *)dev->func_data[dev->state];
|
|
int err = 0;
|
|
|
|
clear_opal_cmd(dev);
|
|
set_comid(dev, dev->comid);
|
|
|
|
add_token_u8(&err, dev, OPAL_CALL);
|
|
add_token_bytestring(&err, dev, opaluid[OPAL_MBRCONTROL],
|
|
OPAL_UID_LENGTH);
|
|
add_token_bytestring(&err, dev, opalmethod[OPAL_SET], OPAL_UID_LENGTH);
|
|
add_token_u8(&err, dev, OPAL_STARTLIST);
|
|
add_token_u8(&err, dev, OPAL_STARTNAME);
|
|
add_token_u8(&err, dev, OPAL_VALUES);
|
|
add_token_u8(&err, dev, OPAL_STARTLIST);
|
|
add_token_u8(&err, dev, OPAL_STARTNAME);
|
|
add_token_u8(&err, dev, 2); /* Done */
|
|
add_token_u8(&err, dev, mbr_done_tf); /* Done T or F */
|
|
add_token_u8(&err, dev, OPAL_ENDNAME);
|
|
add_token_u8(&err, dev, OPAL_ENDLIST);
|
|
add_token_u8(&err, dev, OPAL_ENDNAME);
|
|
add_token_u8(&err, dev, OPAL_ENDLIST);
|
|
|
|
if (err) {
|
|
pr_err("Error Building set MBR Done command\n");
|
|
return err;
|
|
}
|
|
|
|
return finalize_and_send(dev, parse_and_check_status);
|
|
}
|
|
|
|
static int set_mbr_enable_disable(struct opal_dev *dev)
|
|
{
|
|
u8 mbr_en_dis = *(u8 *)dev->func_data[dev->state];
|
|
int err = 0;
|
|
|
|
clear_opal_cmd(dev);
|
|
set_comid(dev, dev->comid);
|
|
|
|
add_token_u8(&err, dev, OPAL_CALL);
|
|
add_token_bytestring(&err, dev, opaluid[OPAL_MBRCONTROL],
|
|
OPAL_UID_LENGTH);
|
|
add_token_bytestring(&err, dev, opalmethod[OPAL_SET], OPAL_UID_LENGTH);
|
|
add_token_u8(&err, dev, OPAL_STARTLIST);
|
|
add_token_u8(&err, dev, OPAL_STARTNAME);
|
|
add_token_u8(&err, dev, OPAL_VALUES);
|
|
add_token_u8(&err, dev, OPAL_STARTLIST);
|
|
add_token_u8(&err, dev, OPAL_STARTNAME);
|
|
add_token_u8(&err, dev, 1);
|
|
add_token_u8(&err, dev, mbr_en_dis);
|
|
add_token_u8(&err, dev, OPAL_ENDNAME);
|
|
add_token_u8(&err, dev, OPAL_ENDLIST);
|
|
add_token_u8(&err, dev, OPAL_ENDNAME);
|
|
add_token_u8(&err, dev, OPAL_ENDLIST);
|
|
|
|
if (err) {
|
|
pr_err("Error Building set MBR done command\n");
|
|
return err;
|
|
}
|
|
|
|
return finalize_and_send(dev, parse_and_check_status);
|
|
}
|
|
|
|
static int generic_pw_cmd(u8 *key, size_t key_len, u8 *cpin_uid,
|
|
struct opal_dev *dev)
|
|
{
|
|
int err = 0;
|
|
|
|
clear_opal_cmd(dev);
|
|
set_comid(dev, dev->comid);
|
|
|
|
add_token_u8(&err, dev, OPAL_CALL);
|
|
add_token_bytestring(&err, dev, cpin_uid, OPAL_UID_LENGTH);
|
|
add_token_bytestring(&err, dev, opalmethod[OPAL_SET],
|
|
OPAL_UID_LENGTH);
|
|
add_token_u8(&err, dev, OPAL_STARTLIST);
|
|
add_token_u8(&err, dev, OPAL_STARTNAME);
|
|
add_token_u8(&err, dev, OPAL_VALUES);
|
|
add_token_u8(&err, dev, OPAL_STARTLIST);
|
|
add_token_u8(&err, dev, OPAL_STARTNAME);
|
|
add_token_u8(&err, dev, 3); /* PIN */
|
|
add_token_bytestring(&err, dev, key, key_len);
|
|
add_token_u8(&err, dev, OPAL_ENDNAME);
|
|
add_token_u8(&err, dev, OPAL_ENDLIST);
|
|
add_token_u8(&err, dev, OPAL_ENDNAME);
|
|
add_token_u8(&err, dev, OPAL_ENDLIST);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int set_new_pw(struct opal_dev *dev)
|
|
{
|
|
u8 cpin_uid[OPAL_UID_LENGTH];
|
|
struct opal_session_info *usr = dev->func_data[dev->state];
|
|
|
|
|
|
memcpy(cpin_uid, opaluid[OPAL_C_PIN_ADMIN1], OPAL_UID_LENGTH);
|
|
|
|
if (usr->who != OPAL_ADMIN1) {
|
|
cpin_uid[5] = 0x03;
|
|
if (usr->sum)
|
|
cpin_uid[7] = usr->opal_key.lr + 1;
|
|
else
|
|
cpin_uid[7] = usr->who;
|
|
}
|
|
|
|
if (generic_pw_cmd(usr->opal_key.key, usr->opal_key.key_len,
|
|
cpin_uid, dev)) {
|
|
pr_err("Error building set password command.\n");
|
|
return -ERANGE;
|
|
}
|
|
|
|
return finalize_and_send(dev, parse_and_check_status);
|
|
}
|
|
|
|
static int set_sid_cpin_pin(struct opal_dev *dev)
|
|
{
|
|
u8 cpin_uid[OPAL_UID_LENGTH];
|
|
struct opal_key *key = dev->func_data[dev->state];
|
|
|
|
memcpy(cpin_uid, opaluid[OPAL_C_PIN_SID], OPAL_UID_LENGTH);
|
|
|
|
if (generic_pw_cmd(key->key, key->key_len, cpin_uid, dev)) {
|
|
pr_err("Error building Set SID cpin\n");
|
|
return -ERANGE;
|
|
}
|
|
return finalize_and_send(dev, parse_and_check_status);
|
|
}
|
|
|
|
static int add_user_to_lr(struct opal_dev *dev)
|
|
{
|
|
u8 lr_buffer[OPAL_UID_LENGTH];
|
|
u8 user_uid[OPAL_UID_LENGTH];
|
|
struct opal_lock_unlock *lkul;
|
|
int err = 0;
|
|
|
|
clear_opal_cmd(dev);
|
|
set_comid(dev, dev->comid);
|
|
|
|
lkul = dev->func_data[dev->state];
|
|
|
|
memcpy(lr_buffer, opaluid[OPAL_LOCKINGRANGE_ACE_RDLOCKED],
|
|
OPAL_UID_LENGTH);
|
|
|
|
if (lkul->l_state == OPAL_RW)
|
|
memcpy(lr_buffer, opaluid[OPAL_LOCKINGRANGE_ACE_WRLOCKED],
|
|
OPAL_UID_LENGTH);
|
|
|
|
lr_buffer[7] = lkul->session.opal_key.lr;
|
|
|
|
memcpy(user_uid, opaluid[OPAL_USER1_UID], OPAL_UID_LENGTH);
|
|
|
|
user_uid[7] = lkul->session.who;
|
|
|
|
add_token_u8(&err, dev, OPAL_CALL);
|
|
add_token_bytestring(&err, dev, lr_buffer, OPAL_UID_LENGTH);
|
|
add_token_bytestring(&err, dev, opalmethod[OPAL_SET],
|
|
OPAL_UID_LENGTH);
|
|
|
|
add_token_u8(&err, dev, OPAL_STARTLIST);
|
|
add_token_u8(&err, dev, OPAL_STARTNAME);
|
|
add_token_u8(&err, dev, OPAL_VALUES);
|
|
|
|
add_token_u8(&err, dev, OPAL_STARTLIST);
|
|
add_token_u8(&err, dev, OPAL_STARTNAME);
|
|
add_token_u8(&err, dev, 3);
|
|
|
|
add_token_u8(&err, dev, OPAL_STARTLIST);
|
|
|
|
|
|
add_token_u8(&err, dev, OPAL_STARTNAME);
|
|
add_token_bytestring(&err, dev,
|
|
opaluid[OPAL_HALF_UID_AUTHORITY_OBJ_REF],
|
|
OPAL_UID_LENGTH/2);
|
|
add_token_bytestring(&err, dev, user_uid, OPAL_UID_LENGTH);
|
|
add_token_u8(&err, dev, OPAL_ENDNAME);
|
|
|
|
|
|
add_token_u8(&err, dev, OPAL_STARTNAME);
|
|
add_token_bytestring(&err, dev,
|
|
opaluid[OPAL_HALF_UID_AUTHORITY_OBJ_REF],
|
|
OPAL_UID_LENGTH/2);
|
|
add_token_bytestring(&err, dev, user_uid, OPAL_UID_LENGTH);
|
|
add_token_u8(&err, dev, OPAL_ENDNAME);
|
|
|
|
|
|
add_token_u8(&err, dev, OPAL_STARTNAME);
|
|
add_token_bytestring(&err, dev, opaluid[OPAL_HALF_UID_BOOLEAN_ACE],
|
|
OPAL_UID_LENGTH/2);
|
|
add_token_u8(&err, dev, 1);
|
|
add_token_u8(&err, dev, OPAL_ENDNAME);
|
|
|
|
|
|
add_token_u8(&err, dev, OPAL_ENDLIST);
|
|
add_token_u8(&err, dev, OPAL_ENDNAME);
|
|
add_token_u8(&err, dev, OPAL_ENDLIST);
|
|
add_token_u8(&err, dev, OPAL_ENDNAME);
|
|
add_token_u8(&err, dev, OPAL_ENDLIST);
|
|
|
|
if (err) {
|
|
pr_err("Error building add user to locking range command.\n");
|
|
return err;
|
|
}
|
|
|
|
return finalize_and_send(dev, parse_and_check_status);
|
|
}
|
|
|
|
static int lock_unlock_locking_range(struct opal_dev *dev)
|
|
{
|
|
u8 lr_buffer[OPAL_UID_LENGTH];
|
|
const u8 *method;
|
|
struct opal_lock_unlock *lkul;
|
|
u8 read_locked = 1, write_locked = 1;
|
|
int err = 0;
|
|
|
|
clear_opal_cmd(dev);
|
|
set_comid(dev, dev->comid);
|
|
|
|
method = opalmethod[OPAL_SET];
|
|
lkul = dev->func_data[dev->state];
|
|
if (build_locking_range(lr_buffer, sizeof(lr_buffer),
|
|
lkul->session.opal_key.lr) < 0)
|
|
return -ERANGE;
|
|
|
|
switch (lkul->l_state) {
|
|
case OPAL_RO:
|
|
read_locked = 0;
|
|
write_locked = 1;
|
|
break;
|
|
case OPAL_RW:
|
|
read_locked = 0;
|
|
write_locked = 0;
|
|
break;
|
|
case OPAL_LK:
|
|
/* vars are initalized to locked */
|
|
break;
|
|
default:
|
|
pr_err("Tried to set an invalid locking state... returning to uland\n");
|
|
return OPAL_INVAL_PARAM;
|
|
}
|
|
|
|
add_token_u8(&err, dev, OPAL_CALL);
|
|
add_token_bytestring(&err, dev, lr_buffer, OPAL_UID_LENGTH);
|
|
add_token_bytestring(&err, dev, opalmethod[OPAL_SET], OPAL_UID_LENGTH);
|
|
add_token_u8(&err, dev, OPAL_STARTLIST);
|
|
add_token_u8(&err, dev, OPAL_STARTNAME);
|
|
add_token_u8(&err, dev, OPAL_VALUES);
|
|
add_token_u8(&err, dev, OPAL_STARTLIST);
|
|
|
|
add_token_u8(&err, dev, OPAL_STARTNAME);
|
|
add_token_u8(&err, dev, OPAL_READLOCKED);
|
|
add_token_u8(&err, dev, read_locked);
|
|
add_token_u8(&err, dev, OPAL_ENDNAME);
|
|
|
|
add_token_u8(&err, dev, OPAL_STARTNAME);
|
|
add_token_u8(&err, dev, OPAL_WRITELOCKED);
|
|
add_token_u8(&err, dev, write_locked);
|
|
add_token_u8(&err, dev, OPAL_ENDNAME);
|
|
|
|
add_token_u8(&err, dev, OPAL_ENDLIST);
|
|
add_token_u8(&err, dev, OPAL_ENDNAME);
|
|
add_token_u8(&err, dev, OPAL_ENDLIST);
|
|
|
|
if (err) {
|
|
pr_err("Error building SET command.\n");
|
|
return err;
|
|
}
|
|
return finalize_and_send(dev, parse_and_check_status);
|
|
}
|
|
|
|
|
|
static int lock_unlock_locking_range_sum(struct opal_dev *dev)
|
|
{
|
|
u8 lr_buffer[OPAL_UID_LENGTH];
|
|
u8 read_locked = 1, write_locked = 1;
|
|
const u8 *method;
|
|
struct opal_lock_unlock *lkul;
|
|
int ret;
|
|
|
|
clear_opal_cmd(dev);
|
|
set_comid(dev, dev->comid);
|
|
|
|
method = opalmethod[OPAL_SET];
|
|
lkul = dev->func_data[dev->state];
|
|
if (build_locking_range(lr_buffer, sizeof(lr_buffer),
|
|
lkul->session.opal_key.lr) < 0)
|
|
return -ERANGE;
|
|
|
|
switch (lkul->l_state) {
|
|
case OPAL_RO:
|
|
read_locked = 0;
|
|
write_locked = 1;
|
|
break;
|
|
case OPAL_RW:
|
|
read_locked = 0;
|
|
write_locked = 0;
|
|
break;
|
|
case OPAL_LK:
|
|
/* vars are initalized to locked */
|
|
break;
|
|
default:
|
|
pr_err("Tried to set an invalid locking state.\n");
|
|
return OPAL_INVAL_PARAM;
|
|
}
|
|
ret = generic_lr_enable_disable(dev, lr_buffer, 1, 1,
|
|
read_locked, write_locked);
|
|
|
|
if (ret < 0) {
|
|
pr_err("Error building SET command.\n");
|
|
return ret;
|
|
}
|
|
return finalize_and_send(dev, parse_and_check_status);
|
|
}
|
|
|
|
static int activate_lsp(struct opal_dev *dev)
|
|
{
|
|
struct opal_lr_act *opal_act;
|
|
u8 user_lr[OPAL_UID_LENGTH];
|
|
u8 uint_3 = 0x83;
|
|
int err = 0, i;
|
|
|
|
clear_opal_cmd(dev);
|
|
set_comid(dev, dev->comid);
|
|
|
|
opal_act = dev->func_data[dev->state];
|
|
|
|
add_token_u8(&err, dev, OPAL_CALL);
|
|
add_token_bytestring(&err, dev, opaluid[OPAL_LOCKINGSP_UID],
|
|
OPAL_UID_LENGTH);
|
|
add_token_bytestring(&err, dev, opalmethod[OPAL_ACTIVATE],
|
|
OPAL_UID_LENGTH);
|
|
|
|
|
|
if (opal_act->sum) {
|
|
err = build_locking_range(user_lr, sizeof(user_lr),
|
|
opal_act->lr[0]);
|
|
if (err)
|
|
return err;
|
|
|
|
add_token_u8(&err, dev, OPAL_STARTLIST);
|
|
add_token_u8(&err, dev, OPAL_STARTNAME);
|
|
add_token_u8(&err, dev, uint_3);
|
|
add_token_u8(&err, dev, 6);
|
|
add_token_u8(&err, dev, 0);
|
|
add_token_u8(&err, dev, 0);
|
|
|
|
add_token_u8(&err, dev, OPAL_STARTLIST);
|
|
add_token_bytestring(&err, dev, user_lr, OPAL_UID_LENGTH);
|
|
for (i = 1; i < opal_act->num_lrs; i++) {
|
|
user_lr[7] = opal_act->lr[i];
|
|
add_token_bytestring(&err, dev, user_lr, OPAL_UID_LENGTH);
|
|
}
|
|
add_token_u8(&err, dev, OPAL_ENDLIST);
|
|
add_token_u8(&err, dev, OPAL_ENDNAME);
|
|
add_token_u8(&err, dev, OPAL_ENDLIST);
|
|
|
|
} else {
|
|
add_token_u8(&err, dev, OPAL_STARTLIST);
|
|
add_token_u8(&err, dev, OPAL_ENDLIST);
|
|
}
|
|
|
|
if (err) {
|
|
pr_err("Error building Activate LockingSP command.\n");
|
|
return err;
|
|
}
|
|
|
|
return finalize_and_send(dev, parse_and_check_status);
|
|
}
|
|
|
|
static int get_lsp_lifecycle_cont(struct opal_dev *dev)
|
|
{
|
|
u8 lc_status;
|
|
int error = 0;
|
|
|
|
error = parse_and_check_status(dev);
|
|
if (error)
|
|
return error;
|
|
|
|
lc_status = response_get_u64(&dev->parsed, 4);
|
|
/* 0x08 is Manufacured Inactive */
|
|
/* 0x09 is Manufactured */
|
|
if (lc_status != OPAL_MANUFACTURED_INACTIVE) {
|
|
pr_err("Couldn't determine the status of the Lifcycle state\n");
|
|
return -ENODEV;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Determine if we're in the Manufactured Inactive or Active state */
|
|
static int get_lsp_lifecycle(struct opal_dev *dev)
|
|
{
|
|
int err = 0;
|
|
|
|
clear_opal_cmd(dev);
|
|
set_comid(dev, dev->comid);
|
|
|
|
add_token_u8(&err, dev, OPAL_CALL);
|
|
add_token_bytestring(&err, dev, opaluid[OPAL_LOCKINGSP_UID],
|
|
OPAL_UID_LENGTH);
|
|
add_token_bytestring(&err, dev, opalmethod[OPAL_GET], OPAL_UID_LENGTH);
|
|
|
|
add_token_u8(&err, dev, OPAL_STARTLIST);
|
|
add_token_u8(&err, dev, OPAL_STARTLIST);
|
|
|
|
add_token_u8(&err, dev, OPAL_STARTNAME);
|
|
add_token_u8(&err, dev, 3); /* Start Column */
|
|
add_token_u8(&err, dev, 6); /* Lifecycle Column */
|
|
add_token_u8(&err, dev, OPAL_ENDNAME);
|
|
|
|
add_token_u8(&err, dev, OPAL_STARTNAME);
|
|
add_token_u8(&err, dev, 4); /* End Column */
|
|
add_token_u8(&err, dev, 6); /* Lifecycle Column */
|
|
add_token_u8(&err, dev, OPAL_ENDNAME);
|
|
|
|
add_token_u8(&err, dev, OPAL_ENDLIST);
|
|
add_token_u8(&err, dev, OPAL_ENDLIST);
|
|
|
|
if (err) {
|
|
pr_err("Error Building GET Lifecycle Status command\n");
|
|
return err;
|
|
}
|
|
|
|
return finalize_and_send(dev, get_lsp_lifecycle_cont);
|
|
}
|
|
|
|
static int get_msid_cpin_pin_cont(struct opal_dev *dev)
|
|
{
|
|
const char *msid_pin;
|
|
size_t strlen;
|
|
int error = 0;
|
|
|
|
error = parse_and_check_status(dev);
|
|
if (error)
|
|
return error;
|
|
|
|
strlen = response_get_string(&dev->parsed, 4, &msid_pin);
|
|
if (!msid_pin) {
|
|
pr_err("%s: Couldn't extract PIN from response\n", __func__);
|
|
return OPAL_INVAL_PARAM;
|
|
}
|
|
|
|
dev->prev_data = kmemdup(msid_pin, strlen, GFP_KERNEL);
|
|
if (!dev->prev_data)
|
|
return -ENOMEM;
|
|
|
|
dev->prev_d_len = strlen;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int get_msid_cpin_pin(struct opal_dev *dev)
|
|
{
|
|
int err = 0;
|
|
|
|
clear_opal_cmd(dev);
|
|
set_comid(dev, dev->comid);
|
|
|
|
|
|
add_token_u8(&err, dev, OPAL_CALL);
|
|
add_token_bytestring(&err, dev, opaluid[OPAL_C_PIN_MSID],
|
|
OPAL_UID_LENGTH);
|
|
add_token_bytestring(&err, dev, opalmethod[OPAL_GET], OPAL_UID_LENGTH);
|
|
|
|
add_token_u8(&err, dev, OPAL_STARTLIST);
|
|
add_token_u8(&err, dev, OPAL_STARTLIST);
|
|
|
|
add_token_u8(&err, dev, OPAL_STARTNAME);
|
|
add_token_u8(&err, dev, 3); /* Start Column */
|
|
add_token_u8(&err, dev, 3); /* PIN */
|
|
add_token_u8(&err, dev, OPAL_ENDNAME);
|
|
|
|
add_token_u8(&err, dev, OPAL_STARTNAME);
|
|
add_token_u8(&err, dev, 4); /* End Column */
|
|
add_token_u8(&err, dev, 3); /* Lifecycle Column */
|
|
add_token_u8(&err, dev, OPAL_ENDNAME);
|
|
|
|
add_token_u8(&err, dev, OPAL_ENDLIST);
|
|
add_token_u8(&err, dev, OPAL_ENDLIST);
|
|
|
|
if (err) {
|
|
pr_err("Error building Get MSID CPIN PIN command.\n");
|
|
return err;
|
|
}
|
|
|
|
return finalize_and_send(dev, get_msid_cpin_pin_cont);
|
|
}
|
|
|
|
static int build_end_opal_session(struct opal_dev *dev)
|
|
{
|
|
int err = 0;
|
|
|
|
clear_opal_cmd(dev);
|
|
|
|
set_comid(dev, dev->comid);
|
|
add_token_u8(&err, dev, OPAL_ENDOFSESSION);
|
|
return err;
|
|
}
|
|
|
|
static int end_opal_session(struct opal_dev *dev)
|
|
{
|
|
int ret = build_end_opal_session(dev);
|
|
|
|
if (ret < 0)
|
|
return ret;
|
|
return finalize_and_send(dev, end_session_cont);
|
|
}
|
|
|
|
static int end_opal_session_error(struct opal_dev *dev)
|
|
{
|
|
const opal_step error_end_session[] = {
|
|
end_opal_session,
|
|
NULL,
|
|
};
|
|
dev->funcs = error_end_session;
|
|
dev->state = 0;
|
|
return next(dev);
|
|
}
|
|
|
|
static inline void setup_opal_dev(struct opal_dev *dev,
|
|
const opal_step *funcs)
|
|
{
|
|
dev->state = 0;
|
|
dev->funcs = funcs;
|
|
dev->tsn = 0;
|
|
dev->hsn = 0;
|
|
dev->func_data = NULL;
|
|
dev->prev_data = NULL;
|
|
}
|
|
|
|
static int check_opal_support(struct opal_dev *dev)
|
|
{
|
|
static const opal_step funcs[] = {
|
|
opal_discovery0,
|
|
NULL
|
|
};
|
|
int ret;
|
|
|
|
mutex_lock(&dev->dev_lock);
|
|
setup_opal_dev(dev, funcs);
|
|
ret = next(dev);
|
|
dev->supported = !ret;
|
|
mutex_unlock(&dev->dev_lock);
|
|
return ret;
|
|
}
|
|
|
|
struct opal_dev *init_opal_dev(void *data, sec_send_recv *send_recv)
|
|
{
|
|
struct opal_dev *dev;
|
|
|
|
dev = kmalloc(sizeof(*dev), GFP_KERNEL);
|
|
if (!dev)
|
|
return NULL;
|
|
|
|
INIT_LIST_HEAD(&dev->unlk_lst);
|
|
mutex_init(&dev->dev_lock);
|
|
dev->data = data;
|
|
dev->send_recv = send_recv;
|
|
if (check_opal_support(dev) != 0) {
|
|
pr_debug("Opal is not supported on this device\n");
|
|
kfree(dev);
|
|
return NULL;
|
|
}
|
|
return dev;
|
|
}
|
|
EXPORT_SYMBOL(init_opal_dev);
|
|
|
|
static int opal_secure_erase_locking_range(struct opal_dev *dev,
|
|
struct opal_session_info *opal_session)
|
|
{
|
|
void *data[3] = { NULL };
|
|
static const opal_step erase_funcs[] = {
|
|
opal_discovery0,
|
|
start_auth_opal_session,
|
|
get_active_key,
|
|
gen_key,
|
|
end_opal_session,
|
|
NULL,
|
|
};
|
|
int ret;
|
|
|
|
mutex_lock(&dev->dev_lock);
|
|
setup_opal_dev(dev, erase_funcs);
|
|
|
|
dev->func_data = data;
|
|
dev->func_data[1] = opal_session;
|
|
dev->func_data[2] = &opal_session->opal_key.lr;
|
|
|
|
ret = next(dev);
|
|
mutex_unlock(&dev->dev_lock);
|
|
return ret;
|
|
}
|
|
|
|
static int opal_erase_locking_range(struct opal_dev *dev,
|
|
struct opal_session_info *opal_session)
|
|
{
|
|
void *data[3] = { NULL };
|
|
static const opal_step erase_funcs[] = {
|
|
opal_discovery0,
|
|
start_auth_opal_session,
|
|
erase_locking_range,
|
|
end_opal_session,
|
|
NULL,
|
|
};
|
|
int ret;
|
|
|
|
mutex_lock(&dev->dev_lock);
|
|
setup_opal_dev(dev, erase_funcs);
|
|
|
|
dev->func_data = data;
|
|
dev->func_data[1] = opal_session;
|
|
dev->func_data[2] = opal_session;
|
|
|
|
ret = next(dev);
|
|
mutex_unlock(&dev->dev_lock);
|
|
return ret;
|
|
}
|
|
|
|
static int opal_enable_disable_shadow_mbr(struct opal_dev *dev,
|
|
struct opal_mbr_data *opal_mbr)
|
|
{
|
|
void *func_data[6] = { NULL };
|
|
static const opal_step mbr_funcs[] = {
|
|
opal_discovery0,
|
|
start_admin1LSP_opal_session,
|
|
set_mbr_done,
|
|
end_opal_session,
|
|
start_admin1LSP_opal_session,
|
|
set_mbr_enable_disable,
|
|
end_opal_session,
|
|
NULL,
|
|
};
|
|
int ret;
|
|
|
|
if (opal_mbr->enable_disable != OPAL_MBR_ENABLE &&
|
|
opal_mbr->enable_disable != OPAL_MBR_DISABLE)
|
|
return -EINVAL;
|
|
|
|
mutex_lock(&dev->dev_lock);
|
|
setup_opal_dev(dev, mbr_funcs);
|
|
dev->func_data = func_data;
|
|
dev->func_data[1] = &opal_mbr->key;
|
|
dev->func_data[2] = &opal_mbr->enable_disable;
|
|
dev->func_data[4] = &opal_mbr->key;
|
|
dev->func_data[5] = &opal_mbr->enable_disable;
|
|
ret = next(dev);
|
|
mutex_unlock(&dev->dev_lock);
|
|
return ret;
|
|
}
|
|
|
|
static int opal_save(struct opal_dev *dev, struct opal_lock_unlock *lk_unlk)
|
|
{
|
|
struct opal_suspend_data *suspend;
|
|
|
|
suspend = kzalloc(sizeof(*suspend), GFP_KERNEL);
|
|
if (!suspend)
|
|
return -ENOMEM;
|
|
|
|
suspend->unlk = *lk_unlk;
|
|
suspend->lr = lk_unlk->session.opal_key.lr;
|
|
|
|
mutex_lock(&dev->dev_lock);
|
|
setup_opal_dev(dev, NULL);
|
|
add_suspend_info(dev, suspend);
|
|
mutex_unlock(&dev->dev_lock);
|
|
return 0;
|
|
}
|
|
|
|
static int opal_add_user_to_lr(struct opal_dev *dev,
|
|
struct opal_lock_unlock *lk_unlk)
|
|
{
|
|
void *func_data[3] = { NULL };
|
|
static const opal_step funcs[] = {
|
|
opal_discovery0,
|
|
start_admin1LSP_opal_session,
|
|
add_user_to_lr,
|
|
end_opal_session,
|
|
NULL
|
|
};
|
|
int ret;
|
|
|
|
if (lk_unlk->l_state != OPAL_RO &&
|
|
lk_unlk->l_state != OPAL_RW) {
|
|
pr_err("Locking state was not RO or RW\n");
|
|
return -EINVAL;
|
|
}
|
|
if (lk_unlk->session.who < OPAL_USER1 &&
|
|
lk_unlk->session.who > OPAL_USER9) {
|
|
pr_err("Authority was not within the range of users: %d\n",
|
|
lk_unlk->session.who);
|
|
return -EINVAL;
|
|
}
|
|
if (lk_unlk->session.sum) {
|
|
pr_err("%s not supported in sum. Use setup locking range\n",
|
|
__func__);
|
|
return -EINVAL;
|
|
}
|
|
|
|
mutex_lock(&dev->dev_lock);
|
|
setup_opal_dev(dev, funcs);
|
|
dev->func_data = func_data;
|
|
dev->func_data[1] = &lk_unlk->session.opal_key;
|
|
dev->func_data[2] = lk_unlk;
|
|
ret = next(dev);
|
|
mutex_unlock(&dev->dev_lock);
|
|
return ret;
|
|
}
|
|
|
|
static int opal_reverttper(struct opal_dev *dev, struct opal_key *opal)
|
|
{
|
|
void *data[2] = { NULL };
|
|
static const opal_step revert_funcs[] = {
|
|
opal_discovery0,
|
|
start_SIDASP_opal_session,
|
|
revert_tper, /* controller will terminate session */
|
|
NULL,
|
|
};
|
|
int ret;
|
|
|
|
mutex_lock(&dev->dev_lock);
|
|
setup_opal_dev(dev, revert_funcs);
|
|
dev->func_data = data;
|
|
dev->func_data[1] = opal;
|
|
ret = next(dev);
|
|
mutex_unlock(&dev->dev_lock);
|
|
return ret;
|
|
}
|
|
|
|
static int __opal_lock_unlock_sum(struct opal_dev *dev)
|
|
{
|
|
static const opal_step ulk_funcs_sum[] = {
|
|
opal_discovery0,
|
|
start_auth_opal_session,
|
|
lock_unlock_locking_range_sum,
|
|
end_opal_session,
|
|
NULL
|
|
};
|
|
|
|
dev->funcs = ulk_funcs_sum;
|
|
return next(dev);
|
|
}
|
|
|
|
static int __opal_lock_unlock(struct opal_dev *dev)
|
|
{
|
|
static const opal_step _unlock_funcs[] = {
|
|
opal_discovery0,
|
|
start_auth_opal_session,
|
|
lock_unlock_locking_range,
|
|
end_opal_session,
|
|
NULL
|
|
};
|
|
|
|
dev->funcs = _unlock_funcs;
|
|
return next(dev);
|
|
}
|
|
|
|
static int opal_lock_unlock(struct opal_dev *dev, struct opal_lock_unlock *lk_unlk)
|
|
{
|
|
void *func_data[3] = { NULL };
|
|
int ret;
|
|
|
|
if (lk_unlk->session.who < OPAL_ADMIN1 ||
|
|
lk_unlk->session.who > OPAL_USER9)
|
|
return -EINVAL;
|
|
|
|
mutex_lock(&dev->dev_lock);
|
|
setup_opal_dev(dev, NULL);
|
|
dev->func_data = func_data;
|
|
dev->func_data[1] = &lk_unlk->session;
|
|
dev->func_data[2] = lk_unlk;
|
|
|
|
if (lk_unlk->session.sum)
|
|
ret = __opal_lock_unlock_sum(dev);
|
|
else
|
|
ret = __opal_lock_unlock(dev);
|
|
|
|
mutex_unlock(&dev->dev_lock);
|
|
return ret;
|
|
}
|
|
|
|
static int opal_take_ownership(struct opal_dev *dev, struct opal_key *opal)
|
|
{
|
|
static const opal_step owner_funcs[] = {
|
|
opal_discovery0,
|
|
start_anybodyASP_opal_session,
|
|
get_msid_cpin_pin,
|
|
end_opal_session,
|
|
start_SIDASP_opal_session,
|
|
set_sid_cpin_pin,
|
|
end_opal_session,
|
|
NULL
|
|
};
|
|
void *data[6] = { NULL };
|
|
int ret;
|
|
|
|
if (!dev)
|
|
return -ENODEV;
|
|
|
|
mutex_lock(&dev->dev_lock);
|
|
setup_opal_dev(dev, owner_funcs);
|
|
dev->func_data = data;
|
|
dev->func_data[4] = opal;
|
|
dev->func_data[5] = opal;
|
|
ret = next(dev);
|
|
mutex_unlock(&dev->dev_lock);
|
|
return ret;
|
|
}
|
|
|
|
static int opal_activate_lsp(struct opal_dev *dev, struct opal_lr_act *opal_lr_act)
|
|
{
|
|
void *data[4] = { NULL };
|
|
static const opal_step active_funcs[] = {
|
|
opal_discovery0,
|
|
start_SIDASP_opal_session, /* Open session as SID auth */
|
|
get_lsp_lifecycle,
|
|
activate_lsp,
|
|
end_opal_session,
|
|
NULL
|
|
};
|
|
int ret;
|
|
|
|
if (!opal_lr_act->num_lrs || opal_lr_act->num_lrs > OPAL_MAX_LRS)
|
|
return -EINVAL;
|
|
|
|
mutex_lock(&dev->dev_lock);
|
|
setup_opal_dev(dev, active_funcs);
|
|
dev->func_data = data;
|
|
dev->func_data[1] = &opal_lr_act->key;
|
|
dev->func_data[3] = opal_lr_act;
|
|
ret = next(dev);
|
|
mutex_unlock(&dev->dev_lock);
|
|
return ret;
|
|
}
|
|
|
|
static int opal_setup_locking_range(struct opal_dev *dev,
|
|
struct opal_user_lr_setup *opal_lrs)
|
|
{
|
|
void *data[3] = { NULL };
|
|
static const opal_step lr_funcs[] = {
|
|
opal_discovery0,
|
|
start_auth_opal_session,
|
|
setup_locking_range,
|
|
end_opal_session,
|
|
NULL,
|
|
};
|
|
int ret;
|
|
|
|
mutex_lock(&dev->dev_lock);
|
|
setup_opal_dev(dev, lr_funcs);
|
|
dev->func_data = data;
|
|
dev->func_data[1] = &opal_lrs->session;
|
|
dev->func_data[2] = opal_lrs;
|
|
ret = next(dev);
|
|
mutex_unlock(&dev->dev_lock);
|
|
return ret;
|
|
}
|
|
|
|
static int opal_set_new_pw(struct opal_dev *dev, struct opal_new_pw *opal_pw)
|
|
{
|
|
static const opal_step pw_funcs[] = {
|
|
opal_discovery0,
|
|
start_auth_opal_session,
|
|
set_new_pw,
|
|
end_opal_session,
|
|
NULL
|
|
};
|
|
void *data[3] = { NULL };
|
|
int ret;
|
|
|
|
if (opal_pw->session.who < OPAL_ADMIN1 ||
|
|
opal_pw->session.who > OPAL_USER9 ||
|
|
opal_pw->new_user_pw.who < OPAL_ADMIN1 ||
|
|
opal_pw->new_user_pw.who > OPAL_USER9)
|
|
return -EINVAL;
|
|
|
|
mutex_lock(&dev->dev_lock);
|
|
setup_opal_dev(dev, pw_funcs);
|
|
dev->func_data = data;
|
|
dev->func_data[1] = (void *) &opal_pw->session;
|
|
dev->func_data[2] = (void *) &opal_pw->new_user_pw;
|
|
|
|
ret = next(dev);
|
|
mutex_unlock(&dev->dev_lock);
|
|
return ret;
|
|
}
|
|
|
|
static int opal_activate_user(struct opal_dev *dev,
|
|
struct opal_session_info *opal_session)
|
|
{
|
|
static const opal_step act_funcs[] = {
|
|
opal_discovery0,
|
|
start_admin1LSP_opal_session,
|
|
internal_activate_user,
|
|
end_opal_session,
|
|
NULL
|
|
};
|
|
void *data[3] = { NULL };
|
|
int ret;
|
|
|
|
/* We can't activate Admin1 it's active as manufactured */
|
|
if (opal_session->who < OPAL_USER1 &&
|
|
opal_session->who > OPAL_USER9) {
|
|
pr_err("Who was not a valid user: %d\n", opal_session->who);
|
|
return -EINVAL;
|
|
}
|
|
|
|
mutex_lock(&dev->dev_lock);
|
|
setup_opal_dev(dev, act_funcs);
|
|
dev->func_data = data;
|
|
dev->func_data[1] = &opal_session->opal_key;
|
|
dev->func_data[2] = opal_session;
|
|
ret = next(dev);
|
|
mutex_unlock(&dev->dev_lock);
|
|
return ret;
|
|
}
|
|
|
|
bool opal_unlock_from_suspend(struct opal_dev *dev)
|
|
{
|
|
struct opal_suspend_data *suspend;
|
|
void *func_data[3] = { NULL };
|
|
bool was_failure = false;
|
|
int ret = 0;
|
|
|
|
if (!dev)
|
|
return false;
|
|
if (!dev->supported)
|
|
return false;
|
|
|
|
mutex_lock(&dev->dev_lock);
|
|
setup_opal_dev(dev, NULL);
|
|
dev->func_data = func_data;
|
|
|
|
list_for_each_entry(suspend, &dev->unlk_lst, node) {
|
|
dev->state = 0;
|
|
dev->func_data[1] = &suspend->unlk.session;
|
|
dev->func_data[2] = &suspend->unlk;
|
|
dev->tsn = 0;
|
|
dev->hsn = 0;
|
|
|
|
if (suspend->unlk.session.sum)
|
|
ret = __opal_lock_unlock_sum(dev);
|
|
else
|
|
ret = __opal_lock_unlock(dev);
|
|
if (ret) {
|
|
pr_warn("Failed to unlock LR %hhu with sum %d\n",
|
|
suspend->unlk.session.opal_key.lr,
|
|
suspend->unlk.session.sum);
|
|
was_failure = true;
|
|
}
|
|
}
|
|
mutex_unlock(&dev->dev_lock);
|
|
return was_failure;
|
|
}
|
|
EXPORT_SYMBOL(opal_unlock_from_suspend);
|
|
|
|
int sed_ioctl(struct opal_dev *dev, unsigned int cmd, void __user *arg)
|
|
{
|
|
void *p;
|
|
int ret = -ENOTTY;
|
|
|
|
if (!capable(CAP_SYS_ADMIN))
|
|
return -EACCES;
|
|
if (!dev)
|
|
return -ENOTSUPP;
|
|
if (!dev->supported) {
|
|
pr_err("Not supported\n");
|
|
return -ENOTSUPP;
|
|
}
|
|
|
|
p = memdup_user(arg, _IOC_SIZE(cmd));
|
|
if (IS_ERR(p))
|
|
return PTR_ERR(p);
|
|
|
|
switch (cmd) {
|
|
case IOC_OPAL_SAVE:
|
|
ret = opal_save(dev, p);
|
|
break;
|
|
case IOC_OPAL_LOCK_UNLOCK:
|
|
ret = opal_lock_unlock(dev, p);
|
|
break;
|
|
case IOC_OPAL_TAKE_OWNERSHIP:
|
|
ret = opal_take_ownership(dev, p);
|
|
break;
|
|
case IOC_OPAL_ACTIVATE_LSP:
|
|
ret = opal_activate_lsp(dev, p);
|
|
break;
|
|
case IOC_OPAL_SET_PW:
|
|
ret = opal_set_new_pw(dev, p);
|
|
break;
|
|
case IOC_OPAL_ACTIVATE_USR:
|
|
ret = opal_activate_user(dev, p);
|
|
break;
|
|
case IOC_OPAL_REVERT_TPR:
|
|
ret = opal_reverttper(dev, p);
|
|
break;
|
|
case IOC_OPAL_LR_SETUP:
|
|
ret = opal_setup_locking_range(dev, p);
|
|
break;
|
|
case IOC_OPAL_ADD_USR_TO_LR:
|
|
ret = opal_add_user_to_lr(dev, p);
|
|
break;
|
|
case IOC_OPAL_ENABLE_DISABLE_MBR:
|
|
ret = opal_enable_disable_shadow_mbr(dev, p);
|
|
break;
|
|
case IOC_OPAL_ERASE_LR:
|
|
ret = opal_erase_locking_range(dev, p);
|
|
break;
|
|
case IOC_OPAL_SECURE_ERASE_LR:
|
|
ret = opal_secure_erase_locking_range(dev, p);
|
|
break;
|
|
default:
|
|
pr_warn("No such Opal Ioctl %u\n", cmd);
|
|
}
|
|
|
|
kfree(p);
|
|
return ret;
|
|
}
|
|
EXPORT_SYMBOL_GPL(sed_ioctl);
|