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![Ingo Tuchscherer](/assets/img/avatar_default.png)
This feature extends the generic cryptographic device driver (zcrypt) with a new capability to service EP11 requests for the Crypto Express4S card in EP11 (Enterprise PKCS#11 mode) coprocessor mode. Signed-off-by: Ingo Tuchscherer <ingo.tuchscherer@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
171 lines
5.6 KiB
C
171 lines
5.6 KiB
C
/*
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* zcrypt 2.1.0
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*
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* Copyright IBM Corp. 2001, 2012
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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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* Major cleanup & driver split: Martin Schwidefsky <schwidefsky@de.ibm.com>
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* MSGTYPE restruct: Holger Dengler <hd@linux.vnet.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 _ZCRYPT_MSGTYPE6_H_
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#define _ZCRYPT_MSGTYPE6_H_
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#include <asm/zcrypt.h>
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#define MSGTYPE06_NAME "zcrypt_msgtype6"
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#define MSGTYPE06_VARIANT_DEFAULT 0
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#define MSGTYPE06_VARIANT_NORNG 1
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#define MSGTYPE06_VARIANT_EP11 2
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#define MSGTYPE06_MAX_MSG_SIZE (12*1024)
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/**
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* The type 6 message family is associated with PCICC or PCIXCC cards.
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*
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* It contains a message header followed by a CPRB, both of which
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* are described below.
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*
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* Note that all reserved fields must be zeroes.
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*/
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struct type6_hdr {
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unsigned char reserved1; /* 0x00 */
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unsigned char type; /* 0x06 */
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unsigned char reserved2[2]; /* 0x0000 */
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unsigned char right[4]; /* 0x00000000 */
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unsigned char reserved3[2]; /* 0x0000 */
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unsigned char reserved4[2]; /* 0x0000 */
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unsigned char apfs[4]; /* 0x00000000 */
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unsigned int offset1; /* 0x00000058 (offset to CPRB) */
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unsigned int offset2; /* 0x00000000 */
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unsigned int offset3; /* 0x00000000 */
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unsigned int offset4; /* 0x00000000 */
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unsigned char agent_id[16]; /* PCICC: */
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/* 0x0100 */
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/* 0x4343412d4150504c202020 */
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/* 0x010101 */
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/* PCIXCC: */
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/* 0x4341000000000000 */
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/* 0x0000000000000000 */
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unsigned char rqid[2]; /* rqid. internal to 603 */
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unsigned char reserved5[2]; /* 0x0000 */
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unsigned char function_code[2]; /* for PKD, 0x5044 (ascii 'PD') */
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unsigned char reserved6[2]; /* 0x0000 */
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unsigned int ToCardLen1; /* (request CPRB len + 3) & -4 */
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unsigned int ToCardLen2; /* db len 0x00000000 for PKD */
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unsigned int ToCardLen3; /* 0x00000000 */
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unsigned int ToCardLen4; /* 0x00000000 */
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unsigned int FromCardLen1; /* response buffer length */
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unsigned int FromCardLen2; /* db len 0x00000000 for PKD */
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unsigned int FromCardLen3; /* 0x00000000 */
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unsigned int FromCardLen4; /* 0x00000000 */
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} __packed;
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/**
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* The type 86 message family is associated with PCICC and PCIXCC cards.
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*
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* It contains a message header followed by a CPRB. The CPRB is
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* the same as the request CPRB, which is described above.
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*
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* If format is 1, an error condition exists and no data beyond
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* the 8-byte message header is of interest.
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*
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* The non-error message is shown below.
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*
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* Note that all reserved fields must be zeroes.
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*/
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struct type86_hdr {
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unsigned char reserved1; /* 0x00 */
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unsigned char type; /* 0x86 */
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unsigned char format; /* 0x01 (error) or 0x02 (ok) */
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unsigned char reserved2; /* 0x00 */
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unsigned char reply_code; /* reply code (see above) */
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unsigned char reserved3[3]; /* 0x000000 */
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} __packed;
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#define TYPE86_RSP_CODE 0x86
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#define TYPE87_RSP_CODE 0x87
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#define TYPE86_FMT2 0x02
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struct type86_fmt2_ext {
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unsigned char reserved[4]; /* 0x00000000 */
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unsigned char apfs[4]; /* final status */
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unsigned int count1; /* length of CPRB + parameters */
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unsigned int offset1; /* offset to CPRB */
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unsigned int count2; /* 0x00000000 */
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unsigned int offset2; /* db offset 0x00000000 for PKD */
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unsigned int count3; /* 0x00000000 */
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unsigned int offset3; /* 0x00000000 */
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unsigned int count4; /* 0x00000000 */
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unsigned int offset4; /* 0x00000000 */
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} __packed;
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/**
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* Prepare a type6 CPRB message for random number generation
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*
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* @ap_dev: AP device pointer
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* @ap_msg: pointer to AP message
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*/
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static inline void rng_type6CPRB_msgX(struct ap_device *ap_dev,
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struct ap_message *ap_msg,
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unsigned random_number_length)
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{
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struct {
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struct type6_hdr hdr;
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struct CPRBX cprbx;
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char function_code[2];
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short int rule_length;
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char rule[8];
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short int verb_length;
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short int key_length;
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} __packed * msg = ap_msg->message;
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static struct type6_hdr static_type6_hdrX = {
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.type = 0x06,
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.offset1 = 0x00000058,
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.agent_id = {'C', 'A'},
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.function_code = {'R', 'L'},
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.ToCardLen1 = sizeof(*msg) - sizeof(msg->hdr),
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.FromCardLen1 = sizeof(*msg) - sizeof(msg->hdr),
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};
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static struct CPRBX local_cprbx = {
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.cprb_len = 0x00dc,
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.cprb_ver_id = 0x02,
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.func_id = {0x54, 0x32},
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.req_parml = sizeof(*msg) - sizeof(msg->hdr) -
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sizeof(msg->cprbx),
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.rpl_msgbl = sizeof(*msg) - sizeof(msg->hdr),
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};
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msg->hdr = static_type6_hdrX;
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msg->hdr.FromCardLen2 = random_number_length,
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msg->cprbx = local_cprbx;
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msg->cprbx.rpl_datal = random_number_length,
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msg->cprbx.domain = AP_QID_QUEUE(ap_dev->qid);
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memcpy(msg->function_code, msg->hdr.function_code, 0x02);
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msg->rule_length = 0x0a;
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memcpy(msg->rule, "RANDOM ", 8);
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msg->verb_length = 0x02;
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msg->key_length = 0x02;
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ap_msg->length = sizeof(*msg);
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}
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int zcrypt_msgtype6_init(void);
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void zcrypt_msgtype6_exit(void);
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#endif /* _ZCRYPT_MSGTYPE6_H_ */
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