mirror of https://gitee.com/openkylin/linux.git
153 lines
5.3 KiB
C
153 lines
5.3 KiB
C
/*
|
|
* zcrypt 2.1.0
|
|
*
|
|
* Copyright IBM Corp. 2001, 2006
|
|
* Author(s): Robert Burroughs
|
|
* Eric Rossman (edrossma@us.ibm.com)
|
|
*
|
|
* Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com)
|
|
* Major cleanup & driver split: Martin Schwidefsky <schwidefsky@de.ibm.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2, or (at your option)
|
|
* any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*/
|
|
|
|
#ifndef _ZCRYPT_ERROR_H_
|
|
#define _ZCRYPT_ERROR_H_
|
|
|
|
#include <linux/atomic.h>
|
|
#include "zcrypt_debug.h"
|
|
#include "zcrypt_api.h"
|
|
|
|
/**
|
|
* Reply Messages
|
|
*
|
|
* Error reply messages are of two types:
|
|
* 82: Error (see below)
|
|
* 88: Error (see below)
|
|
* Both type 82 and type 88 have the same structure in the header.
|
|
*
|
|
* Request reply messages are of three known types:
|
|
* 80: Reply from a Type 50 Request (see CEX2A-RELATED STRUCTS)
|
|
* 84: Reply from a Type 4 Request (see PCICA-RELATED STRUCTS)
|
|
* 86: Reply from a Type 6 Request (see PCICC/PCIXCC/CEX2C-RELATED STRUCTS)
|
|
*
|
|
*/
|
|
struct error_hdr {
|
|
unsigned char reserved1; /* 0x00 */
|
|
unsigned char type; /* 0x82 or 0x88 */
|
|
unsigned char reserved2[2]; /* 0x0000 */
|
|
unsigned char reply_code; /* reply code */
|
|
unsigned char reserved3[3]; /* 0x000000 */
|
|
};
|
|
|
|
#define TYPE82_RSP_CODE 0x82
|
|
#define TYPE88_RSP_CODE 0x88
|
|
|
|
#define REP82_ERROR_MACHINE_FAILURE 0x10
|
|
#define REP82_ERROR_PREEMPT_FAILURE 0x12
|
|
#define REP82_ERROR_CHECKPT_FAILURE 0x14
|
|
#define REP82_ERROR_MESSAGE_TYPE 0x20
|
|
#define REP82_ERROR_INVALID_COMM_CD 0x21 /* Type 84 */
|
|
#define REP82_ERROR_INVALID_MSG_LEN 0x23
|
|
#define REP82_ERROR_RESERVD_FIELD 0x24 /* was 0x50 */
|
|
#define REP82_ERROR_FORMAT_FIELD 0x29
|
|
#define REP82_ERROR_INVALID_COMMAND 0x30
|
|
#define REP82_ERROR_MALFORMED_MSG 0x40
|
|
#define REP82_ERROR_INVALID_DOMAIN_PRECHECK 0x42
|
|
#define REP82_ERROR_RESERVED_FIELDO 0x50 /* old value */
|
|
#define REP82_ERROR_WORD_ALIGNMENT 0x60
|
|
#define REP82_ERROR_MESSAGE_LENGTH 0x80
|
|
#define REP82_ERROR_OPERAND_INVALID 0x82
|
|
#define REP82_ERROR_OPERAND_SIZE 0x84
|
|
#define REP82_ERROR_EVEN_MOD_IN_OPND 0x85
|
|
#define REP82_ERROR_RESERVED_FIELD 0x88
|
|
#define REP82_ERROR_INVALID_DOMAIN_PENDING 0x8A
|
|
#define REP82_ERROR_TRANSPORT_FAIL 0x90
|
|
#define REP82_ERROR_PACKET_TRUNCATED 0xA0
|
|
#define REP82_ERROR_ZERO_BUFFER_LEN 0xB0
|
|
|
|
#define REP88_ERROR_MODULE_FAILURE 0x10
|
|
|
|
#define REP88_ERROR_MESSAGE_TYPE 0x20
|
|
#define REP88_ERROR_MESSAGE_MALFORMD 0x22
|
|
#define REP88_ERROR_MESSAGE_LENGTH 0x23
|
|
#define REP88_ERROR_RESERVED_FIELD 0x24
|
|
#define REP88_ERROR_KEY_TYPE 0x34
|
|
#define REP88_ERROR_INVALID_KEY 0x82 /* CEX2A */
|
|
#define REP88_ERROR_OPERAND 0x84 /* CEX2A */
|
|
#define REP88_ERROR_OPERAND_EVEN_MOD 0x85 /* CEX2A */
|
|
|
|
static inline int convert_error(struct zcrypt_queue *zq,
|
|
struct ap_message *reply)
|
|
{
|
|
struct error_hdr *ehdr = reply->message;
|
|
int card = AP_QID_CARD(zq->queue->qid);
|
|
int queue = AP_QID_QUEUE(zq->queue->qid);
|
|
|
|
switch (ehdr->reply_code) {
|
|
case REP82_ERROR_OPERAND_INVALID:
|
|
case REP82_ERROR_OPERAND_SIZE:
|
|
case REP82_ERROR_EVEN_MOD_IN_OPND:
|
|
case REP88_ERROR_MESSAGE_MALFORMD:
|
|
case REP82_ERROR_INVALID_DOMAIN_PRECHECK:
|
|
case REP82_ERROR_INVALID_DOMAIN_PENDING:
|
|
// REP88_ERROR_INVALID_KEY // '82' CEX2A
|
|
// REP88_ERROR_OPERAND // '84' CEX2A
|
|
// REP88_ERROR_OPERAND_EVEN_MOD // '85' CEX2A
|
|
/* Invalid input data. */
|
|
ZCRYPT_DBF(DBF_WARN,
|
|
"device=%02x.%04x reply=0x%02x => rc=EINVAL\n",
|
|
card, queue, ehdr->reply_code);
|
|
return -EINVAL;
|
|
case REP82_ERROR_MESSAGE_TYPE:
|
|
// REP88_ERROR_MESSAGE_TYPE // '20' CEX2A
|
|
/*
|
|
* To sent a message of the wrong type is a bug in the
|
|
* device driver. Send error msg, disable the device
|
|
* and then repeat the request.
|
|
*/
|
|
atomic_set(&zcrypt_rescan_req, 1);
|
|
zq->online = 0;
|
|
pr_err("Cryptographic device %02x.%04x failed and was set offline\n",
|
|
card, queue);
|
|
ZCRYPT_DBF(DBF_ERR,
|
|
"device=%02x.%04x reply=0x%02x => online=0 rc=EAGAIN\n",
|
|
card, queue, ehdr->reply_code);
|
|
return -EAGAIN;
|
|
case REP82_ERROR_TRANSPORT_FAIL:
|
|
case REP82_ERROR_MACHINE_FAILURE:
|
|
// REP88_ERROR_MODULE_FAILURE // '10' CEX2A
|
|
/* If a card fails disable it and repeat the request. */
|
|
atomic_set(&zcrypt_rescan_req, 1);
|
|
zq->online = 0;
|
|
pr_err("Cryptographic device %02x.%04x failed and was set offline\n",
|
|
card, queue);
|
|
ZCRYPT_DBF(DBF_ERR,
|
|
"device=%02x.%04x reply=0x%02x => online=0 rc=EAGAIN\n",
|
|
card, queue, ehdr->reply_code);
|
|
return -EAGAIN;
|
|
default:
|
|
zq->online = 0;
|
|
pr_err("Cryptographic device %02x.%04x failed and was set offline\n",
|
|
card, queue);
|
|
ZCRYPT_DBF(DBF_ERR,
|
|
"device=%02x.%04x reply=0x%02x => online=0 rc=EAGAIN\n",
|
|
card, queue, ehdr->reply_code);
|
|
return -EAGAIN; /* repeat the request on a different device. */
|
|
}
|
|
}
|
|
|
|
#endif /* _ZCRYPT_ERROR_H_ */
|