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277 lines
9.3 KiB
C
277 lines
9.3 KiB
C
/*
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* include/asm-s390/zcrypt.h
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*
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* zcrypt 2.1.0 (user-visible header)
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*
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* Copyright (C) 2001, 2006 IBM Corporation
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* Author(s): Robert Burroughs
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* Eric Rossman (edrossma@us.ibm.com)
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*
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* Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef __ASM_S390_ZCRYPT_H
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#define __ASM_S390_ZCRYPT_H
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#define ZCRYPT_VERSION 2
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#define ZCRYPT_RELEASE 1
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#define ZCRYPT_VARIANT 1
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#include <linux/ioctl.h>
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#include <linux/compiler.h>
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/**
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* struct ica_rsa_modexpo
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*
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* Requirements:
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* - outputdatalength is at least as large as inputdatalength.
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* - All key parts are right justified in their fields, padded on
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* the left with zeroes.
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* - length(b_key) = inputdatalength
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* - length(n_modulus) = inputdatalength
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*/
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struct ica_rsa_modexpo {
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char __user * inputdata;
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unsigned int inputdatalength;
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char __user * outputdata;
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unsigned int outputdatalength;
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char __user * b_key;
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char __user * n_modulus;
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};
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/**
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* struct ica_rsa_modexpo_crt
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*
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* Requirements:
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* - inputdatalength is even.
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* - outputdatalength is at least as large as inputdatalength.
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* - All key parts are right justified in their fields, padded on
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* the left with zeroes.
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* - length(bp_key) = inputdatalength/2 + 8
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* - length(bq_key) = inputdatalength/2
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* - length(np_key) = inputdatalength/2 + 8
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* - length(nq_key) = inputdatalength/2
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* - length(u_mult_inv) = inputdatalength/2 + 8
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*/
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struct ica_rsa_modexpo_crt {
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char __user * inputdata;
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unsigned int inputdatalength;
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char __user * outputdata;
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unsigned int outputdatalength;
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char __user * bp_key;
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char __user * bq_key;
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char __user * np_prime;
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char __user * nq_prime;
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char __user * u_mult_inv;
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};
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/**
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* CPRBX
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* Note that all shorts and ints are big-endian.
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* All pointer fields are 16 bytes long, and mean nothing.
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*
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* A request CPRB is followed by a request_parameter_block.
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*
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* The request (or reply) parameter block is organized thus:
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* function code
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* VUD block
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* key block
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*/
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struct CPRBX {
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unsigned short cprb_len; /* CPRB length 220 */
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unsigned char cprb_ver_id; /* CPRB version id. 0x02 */
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unsigned char pad_000[3]; /* Alignment pad bytes */
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unsigned char func_id[2]; /* function id 0x5432 */
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unsigned char cprb_flags[4]; /* Flags */
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unsigned int req_parml; /* request parameter buffer len */
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unsigned int req_datal; /* request data buffer */
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unsigned int rpl_msgbl; /* reply message block length */
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unsigned int rpld_parml; /* replied parameter block len */
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unsigned int rpl_datal; /* reply data block len */
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unsigned int rpld_datal; /* replied data block len */
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unsigned int req_extbl; /* request extension block len */
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unsigned char pad_001[4]; /* reserved */
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unsigned int rpld_extbl; /* replied extension block len */
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unsigned char padx000[16 - sizeof (char *)];
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unsigned char * req_parmb; /* request parm block 'address' */
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unsigned char padx001[16 - sizeof (char *)];
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unsigned char * req_datab; /* request data block 'address' */
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unsigned char padx002[16 - sizeof (char *)];
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unsigned char * rpl_parmb; /* reply parm block 'address' */
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unsigned char padx003[16 - sizeof (char *)];
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unsigned char * rpl_datab; /* reply data block 'address' */
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unsigned char padx004[16 - sizeof (char *)];
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unsigned char * req_extb; /* request extension block 'addr'*/
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unsigned char padx005[16 - sizeof (char *)];
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unsigned char * rpl_extb; /* reply extension block 'address'*/
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unsigned short ccp_rtcode; /* server return code */
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unsigned short ccp_rscode; /* server reason code */
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unsigned int mac_data_len; /* Mac Data Length */
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unsigned char logon_id[8]; /* Logon Identifier */
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unsigned char mac_value[8]; /* Mac Value */
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unsigned char mac_content_flgs;/* Mac content flag byte */
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unsigned char pad_002; /* Alignment */
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unsigned short domain; /* Domain */
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unsigned char usage_domain[4];/* Usage domain */
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unsigned char cntrl_domain[4];/* Control domain */
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unsigned char S390enf_mask[4];/* S/390 enforcement mask */
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unsigned char pad_004[36]; /* reserved */
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} __attribute__((packed));
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/**
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* xcRB
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*/
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struct ica_xcRB {
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unsigned short agent_ID;
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unsigned int user_defined;
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unsigned short request_ID;
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unsigned int request_control_blk_length;
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unsigned char padding1[16 - sizeof (char *)];
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char __user * request_control_blk_addr;
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unsigned int request_data_length;
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char padding2[16 - sizeof (char *)];
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char __user * request_data_address;
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unsigned int reply_control_blk_length;
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char padding3[16 - sizeof (char *)];
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char __user * reply_control_blk_addr;
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unsigned int reply_data_length;
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char padding4[16 - sizeof (char *)];
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char __user * reply_data_addr;
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unsigned short priority_window;
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unsigned int status;
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} __attribute__((packed));
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#define AUTOSELECT ((unsigned int)0xFFFFFFFF)
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#define ZCRYPT_IOCTL_MAGIC 'z'
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/**
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* Interface notes:
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*
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* The ioctl()s which are implemented (along with relevant details)
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* are:
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*
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* ICARSAMODEXPO
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* Perform an RSA operation using a Modulus-Exponent pair
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* This takes an ica_rsa_modexpo struct as its arg.
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*
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* NOTE: please refer to the comments preceding this structure
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* for the implementation details for the contents of the
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* block
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*
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* ICARSACRT
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* Perform an RSA operation using a Chinese-Remainder Theorem key
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* This takes an ica_rsa_modexpo_crt struct as its arg.
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*
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* NOTE: please refer to the comments preceding this structure
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* for the implementation details for the contents of the
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* block
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*
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* ZSECSENDCPRB
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* Send an arbitrary CPRB to a crypto card.
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*
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* Z90STAT_STATUS_MASK
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* Return an 64 element array of unsigned chars for the status of
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* all devices.
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* 0x01: PCICA
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* 0x02: PCICC
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* 0x03: PCIXCC_MCL2
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* 0x04: PCIXCC_MCL3
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* 0x05: CEX2C
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* 0x06: CEX2A
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* 0x0d: device is disabled via the proc filesystem
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*
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* Z90STAT_QDEPTH_MASK
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* Return an 64 element array of unsigned chars for the queue
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* depth of all devices.
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*
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* Z90STAT_PERDEV_REQCNT
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* Return an 64 element array of unsigned integers for the number
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* of successfully completed requests per device since the device
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* was detected and made available.
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*
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* Z90STAT_REQUESTQ_COUNT
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* Return an integer count of the number of entries waiting to be
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* sent to a device.
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*
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* Z90STAT_PENDINGQ_COUNT
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* Return an integer count of the number of entries sent to all
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* devices awaiting the reply.
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*
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* Z90STAT_TOTALOPEN_COUNT
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* Return an integer count of the number of open file handles.
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*
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* Z90STAT_DOMAIN_INDEX
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* Return the integer value of the Cryptographic Domain.
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*
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* The following ioctls are deprecated and should be no longer used:
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*
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* Z90STAT_TOTALCOUNT
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* Return an integer count of all device types together.
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*
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* Z90STAT_PCICACOUNT
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* Return an integer count of all PCICAs.
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*
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* Z90STAT_PCICCCOUNT
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* Return an integer count of all PCICCs.
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*
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* Z90STAT_PCIXCCMCL2COUNT
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* Return an integer count of all MCL2 PCIXCCs.
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*
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* Z90STAT_PCIXCCMCL3COUNT
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* Return an integer count of all MCL3 PCIXCCs.
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*
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* Z90STAT_CEX2CCOUNT
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* Return an integer count of all CEX2Cs.
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*
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* Z90STAT_CEX2ACOUNT
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* Return an integer count of all CEX2As.
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*
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* ICAZ90STATUS
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* Return some device driver status in a ica_z90_status struct
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* This takes an ica_z90_status struct as its arg.
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*
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* Z90STAT_PCIXCCCOUNT
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* Return an integer count of all PCIXCCs (MCL2 + MCL3).
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* This is DEPRECATED now that MCL3 PCIXCCs are treated differently from
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* MCL2 PCIXCCs.
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*/
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/**
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* Supported ioctl calls
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*/
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#define ICARSAMODEXPO _IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x05, 0)
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#define ICARSACRT _IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x06, 0)
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#define ZSECSENDCPRB _IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x81, 0)
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/* New status calls */
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#define Z90STAT_TOTALCOUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x40, int)
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#define Z90STAT_PCICACOUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x41, int)
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#define Z90STAT_PCICCCOUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x42, int)
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#define Z90STAT_PCIXCCMCL2COUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x4b, int)
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#define Z90STAT_PCIXCCMCL3COUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x4c, int)
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#define Z90STAT_CEX2CCOUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x4d, int)
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#define Z90STAT_CEX2ACOUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x4e, int)
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#define Z90STAT_REQUESTQ_COUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x44, int)
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#define Z90STAT_PENDINGQ_COUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x45, int)
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#define Z90STAT_TOTALOPEN_COUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x46, int)
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#define Z90STAT_DOMAIN_INDEX _IOR(ZCRYPT_IOCTL_MAGIC, 0x47, int)
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#define Z90STAT_STATUS_MASK _IOR(ZCRYPT_IOCTL_MAGIC, 0x48, char[64])
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#define Z90STAT_QDEPTH_MASK _IOR(ZCRYPT_IOCTL_MAGIC, 0x49, char[64])
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#define Z90STAT_PERDEV_REQCNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x4a, int[64])
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#endif /* __ASM_S390_ZCRYPT_H */
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