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[S390] zcrypt PCICC, PCIXCC coprocessor card ap bus drivers.
Signed-off-by: Ralph Wuerthner <rwuerthn@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
parent
963ed931c3
commit
6684af1a07
5 changed files with 1949 additions and 0 deletions
350
drivers/s390/crypto/zcrypt_cca_key.h
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350
drivers/s390/crypto/zcrypt_cca_key.h
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/*
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* linux/drivers/s390/crypto/zcrypt_cca_key.h
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*
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* zcrypt 2.0.0
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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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* Major cleanup & driver split: Martin Schwidefsky <schwidefsky@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 _ZCRYPT_CCA_KEY_H_
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#define _ZCRYPT_CCA_KEY_H_
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struct T6_keyBlock_hdr {
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unsigned short blen;
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unsigned short ulen;
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unsigned short flags;
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};
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/**
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* mapping for the cca private ME key token.
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* Three parts of interest here: the header, the private section and
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* the public section.
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*
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* mapping for the cca key token header
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*/
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struct cca_token_hdr {
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unsigned char token_identifier;
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unsigned char version;
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unsigned short token_length;
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unsigned char reserved[4];
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} __attribute__((packed));
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#define CCA_TKN_HDR_ID_EXT 0x1E
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/**
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* mapping for the cca private ME section
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*/
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struct cca_private_ext_ME_sec {
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unsigned char section_identifier;
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unsigned char version;
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unsigned short section_length;
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unsigned char private_key_hash[20];
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unsigned char reserved1[4];
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unsigned char key_format;
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unsigned char reserved2;
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unsigned char key_name_hash[20];
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unsigned char key_use_flags[4];
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unsigned char reserved3[6];
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unsigned char reserved4[24];
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unsigned char confounder[24];
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unsigned char exponent[128];
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unsigned char modulus[128];
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} __attribute__((packed));
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#define CCA_PVT_USAGE_ALL 0x80
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/**
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* mapping for the cca public section
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* In a private key, the modulus doesn't appear in the public
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* section. So, an arbitrary public exponent of 0x010001 will be
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* used, for a section length of 0x0F always.
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*/
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struct cca_public_sec {
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unsigned char section_identifier;
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unsigned char version;
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unsigned short section_length;
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unsigned char reserved[2];
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unsigned short exponent_len;
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unsigned short modulus_bit_len;
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unsigned short modulus_byte_len; /* In a private key, this is 0 */
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} __attribute__((packed));
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/**
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* mapping for the cca private CRT key 'token'
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* The first three parts (the only parts considered in this release)
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* are: the header, the private section and the public section.
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* The header and public section are the same as for the
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* struct cca_private_ext_ME
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*
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* Following the structure are the quantities p, q, dp, dq, u, pad,
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* and modulus, in that order, where pad_len is the modulo 8
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* complement of the residue modulo 8 of the sum of
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* (p_len + q_len + dp_len + dq_len + u_len).
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*/
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struct cca_pvt_ext_CRT_sec {
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unsigned char section_identifier;
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unsigned char version;
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unsigned short section_length;
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unsigned char private_key_hash[20];
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unsigned char reserved1[4];
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unsigned char key_format;
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unsigned char reserved2;
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unsigned char key_name_hash[20];
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unsigned char key_use_flags[4];
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unsigned short p_len;
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unsigned short q_len;
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unsigned short dp_len;
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unsigned short dq_len;
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unsigned short u_len;
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unsigned short mod_len;
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unsigned char reserved3[4];
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unsigned short pad_len;
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unsigned char reserved4[52];
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unsigned char confounder[8];
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} __attribute__((packed));
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#define CCA_PVT_EXT_CRT_SEC_ID_PVT 0x08
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#define CCA_PVT_EXT_CRT_SEC_FMT_CL 0x40
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/**
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* Set up private key fields of a type6 MEX message.
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* Note that all numerics in the key token are big-endian,
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* while the entries in the key block header are little-endian.
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*
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* @mex: pointer to user input data
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* @p: pointer to memory area for the key
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*
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* Returns the size of the key area or -EFAULT
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*/
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static inline int zcrypt_type6_mex_key_de(struct ica_rsa_modexpo *mex,
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void *p, int big_endian)
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{
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static struct cca_token_hdr static_pvt_me_hdr = {
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.token_identifier = 0x1E,
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.token_length = 0x0183,
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};
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static struct cca_private_ext_ME_sec static_pvt_me_sec = {
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.section_identifier = 0x02,
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.section_length = 0x016C,
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.key_use_flags = {0x80,0x00,0x00,0x00},
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};
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static struct cca_public_sec static_pub_me_sec = {
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.section_identifier = 0x04,
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.section_length = 0x000F,
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.exponent_len = 0x0003,
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};
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static char pk_exponent[3] = { 0x01, 0x00, 0x01 };
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struct {
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struct T6_keyBlock_hdr t6_hdr;
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struct cca_token_hdr pvtMeHdr;
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struct cca_private_ext_ME_sec pvtMeSec;
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struct cca_public_sec pubMeSec;
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char exponent[3];
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} __attribute__((packed)) *key = p;
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unsigned char *temp;
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memset(key, 0, sizeof(*key));
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if (big_endian) {
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key->t6_hdr.blen = cpu_to_be16(0x189);
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key->t6_hdr.ulen = cpu_to_be16(0x189 - 2);
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} else {
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key->t6_hdr.blen = cpu_to_le16(0x189);
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key->t6_hdr.ulen = cpu_to_le16(0x189 - 2);
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}
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key->pvtMeHdr = static_pvt_me_hdr;
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key->pvtMeSec = static_pvt_me_sec;
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key->pubMeSec = static_pub_me_sec;
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/**
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* In a private key, the modulus doesn't appear in the public
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* section. So, an arbitrary public exponent of 0x010001 will be
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* used.
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*/
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memcpy(key->exponent, pk_exponent, 3);
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/* key parameter block */
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temp = key->pvtMeSec.exponent +
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sizeof(key->pvtMeSec.exponent) - mex->inputdatalength;
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if (copy_from_user(temp, mex->b_key, mex->inputdatalength))
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return -EFAULT;
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/* modulus */
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temp = key->pvtMeSec.modulus +
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sizeof(key->pvtMeSec.modulus) - mex->inputdatalength;
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if (copy_from_user(temp, mex->n_modulus, mex->inputdatalength))
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return -EFAULT;
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key->pubMeSec.modulus_bit_len = 8 * mex->inputdatalength;
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return sizeof(*key);
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}
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/**
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* Set up private key fields of a type6 MEX message. The _pad variant
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* strips leading zeroes from the b_key.
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* Note that all numerics in the key token are big-endian,
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* while the entries in the key block header are little-endian.
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*
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* @mex: pointer to user input data
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* @p: pointer to memory area for the key
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*
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* Returns the size of the key area or -EFAULT
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*/
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static inline int zcrypt_type6_mex_key_en(struct ica_rsa_modexpo *mex,
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void *p, int big_endian)
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{
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static struct cca_token_hdr static_pub_hdr = {
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.token_identifier = 0x1E,
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};
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static struct cca_public_sec static_pub_sec = {
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.section_identifier = 0x04,
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};
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struct {
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struct T6_keyBlock_hdr t6_hdr;
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struct cca_token_hdr pubHdr;
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struct cca_public_sec pubSec;
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char exponent[0];
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} __attribute__((packed)) *key = p;
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unsigned char *temp;
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int i;
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memset(key, 0, sizeof(*key));
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key->pubHdr = static_pub_hdr;
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key->pubSec = static_pub_sec;
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/* key parameter block */
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temp = key->exponent;
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if (copy_from_user(temp, mex->b_key, mex->inputdatalength))
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return -EFAULT;
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/* Strip leading zeroes from b_key. */
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for (i = 0; i < mex->inputdatalength; i++)
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if (temp[i])
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break;
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if (i >= mex->inputdatalength)
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return -EINVAL;
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memmove(temp, temp + i, mex->inputdatalength - i);
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temp += mex->inputdatalength - i;
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/* modulus */
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if (copy_from_user(temp, mex->n_modulus, mex->inputdatalength))
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return -EFAULT;
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key->pubSec.modulus_bit_len = 8 * mex->inputdatalength;
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key->pubSec.modulus_byte_len = mex->inputdatalength;
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key->pubSec.exponent_len = mex->inputdatalength - i;
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key->pubSec.section_length = sizeof(key->pubSec) +
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2*mex->inputdatalength - i;
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key->pubHdr.token_length =
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key->pubSec.section_length + sizeof(key->pubHdr);
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if (big_endian) {
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key->t6_hdr.ulen = cpu_to_be16(key->pubHdr.token_length + 4);
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key->t6_hdr.blen = cpu_to_be16(key->pubHdr.token_length + 6);
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} else {
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key->t6_hdr.ulen = cpu_to_le16(key->pubHdr.token_length + 4);
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key->t6_hdr.blen = cpu_to_le16(key->pubHdr.token_length + 6);
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}
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return sizeof(*key) + 2*mex->inputdatalength - i;
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}
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/**
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* Set up private key fields of a type6 CRT message.
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* Note that all numerics in the key token are big-endian,
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* while the entries in the key block header are little-endian.
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*
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* @mex: pointer to user input data
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* @p: pointer to memory area for the key
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*
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* Returns the size of the key area or -EFAULT
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*/
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static inline int zcrypt_type6_crt_key(struct ica_rsa_modexpo_crt *crt,
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void *p, int big_endian)
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{
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static struct cca_public_sec static_cca_pub_sec = {
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.section_identifier = 4,
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.section_length = 0x000f,
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.exponent_len = 0x0003,
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};
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static char pk_exponent[3] = { 0x01, 0x00, 0x01 };
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struct {
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struct T6_keyBlock_hdr t6_hdr;
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struct cca_token_hdr token;
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struct cca_pvt_ext_CRT_sec pvt;
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char key_parts[0];
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} __attribute__((packed)) *key = p;
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struct cca_public_sec *pub;
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int short_len, long_len, pad_len, key_len, size;
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memset(key, 0, sizeof(*key));
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short_len = crt->inputdatalength / 2;
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long_len = short_len + 8;
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pad_len = -(3*long_len + 2*short_len) & 7;
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key_len = 3*long_len + 2*short_len + pad_len + crt->inputdatalength;
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size = sizeof(*key) + key_len + sizeof(*pub) + 3;
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/* parameter block.key block */
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if (big_endian) {
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key->t6_hdr.blen = cpu_to_be16(size);
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key->t6_hdr.ulen = cpu_to_be16(size - 2);
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} else {
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key->t6_hdr.blen = cpu_to_le16(size);
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key->t6_hdr.ulen = cpu_to_le16(size - 2);
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}
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/* key token header */
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key->token.token_identifier = CCA_TKN_HDR_ID_EXT;
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key->token.token_length = size - 6;
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/* private section */
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key->pvt.section_identifier = CCA_PVT_EXT_CRT_SEC_ID_PVT;
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key->pvt.section_length = sizeof(key->pvt) + key_len;
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key->pvt.key_format = CCA_PVT_EXT_CRT_SEC_FMT_CL;
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key->pvt.key_use_flags[0] = CCA_PVT_USAGE_ALL;
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key->pvt.p_len = key->pvt.dp_len = key->pvt.u_len = long_len;
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key->pvt.q_len = key->pvt.dq_len = short_len;
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key->pvt.mod_len = crt->inputdatalength;
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key->pvt.pad_len = pad_len;
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/* key parts */
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if (copy_from_user(key->key_parts, crt->np_prime, long_len) ||
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copy_from_user(key->key_parts + long_len,
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crt->nq_prime, short_len) ||
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copy_from_user(key->key_parts + long_len + short_len,
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crt->bp_key, long_len) ||
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copy_from_user(key->key_parts + 2*long_len + short_len,
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crt->bq_key, short_len) ||
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copy_from_user(key->key_parts + 2*long_len + 2*short_len,
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crt->u_mult_inv, long_len))
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return -EFAULT;
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memset(key->key_parts + 3*long_len + 2*short_len + pad_len,
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0xff, crt->inputdatalength);
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pub = (struct cca_public_sec *)(key->key_parts + key_len);
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*pub = static_cca_pub_sec;
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pub->modulus_bit_len = 8 * crt->inputdatalength;
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/**
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* In a private key, the modulus doesn't appear in the public
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* section. So, an arbitrary public exponent of 0x010001 will be
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* used.
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*/
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memcpy((char *) (pub + 1), pk_exponent, 3);
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return size;
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}
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#endif /* _ZCRYPT_CCA_KEY_H_ */
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630
drivers/s390/crypto/zcrypt_pcicc.c
Normal file
630
drivers/s390/crypto/zcrypt_pcicc.c
Normal file
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/*
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* linux/drivers/s390/crypto/zcrypt_pcicc.c
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*
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* zcrypt 2.0.0
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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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* Major cleanup & driver split: Martin Schwidefsky <schwidefsky@de.ibm.com>
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* Ralph Wuerthner <rwuerthn@de.ibm.com>
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*
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* 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.
|
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*
|
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* 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.
|
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*/
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#include <linux/module.h>
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#include <linux/init.h>
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#include <linux/err.h>
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#include <asm/atomic.h>
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#include <asm/uaccess.h>
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#include "ap_bus.h"
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#include "zcrypt_api.h"
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#include "zcrypt_error.h"
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#include "zcrypt_pcicc.h"
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#include "zcrypt_cca_key.h"
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#define PCICC_MIN_MOD_SIZE 64 /* 512 bits */
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#define PCICC_MAX_MOD_SIZE_OLD 128 /* 1024 bits */
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#define PCICC_MAX_MOD_SIZE 256 /* 2048 bits */
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/**
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* PCICC cards need a speed rating of 0. This keeps them at the end of
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* the zcrypt device list (see zcrypt_api.c). PCICC cards are only
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* used if no other cards are present because they are slow and can only
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* cope with PKCS12 padded requests. The logic is queer. PKCS11 padded
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* requests are rejected. The modexpo function encrypts PKCS12 padded data
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* and decrypts any non-PKCS12 padded data (except PKCS11) in the assumption
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* that it's encrypted PKCS12 data. The modexpo_crt function always decrypts
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* the data in the assumption that its PKCS12 encrypted data.
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*/
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#define PCICC_SPEED_RATING 0
|
||||
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#define PCICC_MAX_MESSAGE_SIZE 0x710 /* max size type6 v1 crt message */
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#define PCICC_MAX_RESPONSE_SIZE 0x710 /* max size type86 v1 reply */
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#define PCICC_CLEANUP_TIME (15*HZ)
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static struct ap_device_id zcrypt_pcicc_ids[] = {
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{ AP_DEVICE(AP_DEVICE_TYPE_PCICC) },
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||||
{ /* end of list */ },
|
||||
};
|
||||
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#ifndef CONFIG_ZCRYPT_MONOLITHIC
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||||
MODULE_DEVICE_TABLE(ap, zcrypt_pcicc_ids);
|
||||
MODULE_AUTHOR("IBM Corporation");
|
||||
MODULE_DESCRIPTION("PCICC Cryptographic Coprocessor device driver, "
|
||||
"Copyright 2001, 2006 IBM Corporation");
|
||||
MODULE_LICENSE("GPL");
|
||||
#endif
|
||||
|
||||
static int zcrypt_pcicc_probe(struct ap_device *ap_dev);
|
||||
static void zcrypt_pcicc_remove(struct ap_device *ap_dev);
|
||||
static void zcrypt_pcicc_receive(struct ap_device *, struct ap_message *,
|
||||
struct ap_message *);
|
||||
|
||||
static struct ap_driver zcrypt_pcicc_driver = {
|
||||
.probe = zcrypt_pcicc_probe,
|
||||
.remove = zcrypt_pcicc_remove,
|
||||
.receive = zcrypt_pcicc_receive,
|
||||
.ids = zcrypt_pcicc_ids,
|
||||
};
|
||||
|
||||
/**
|
||||
* The following is used to initialize the CPRB passed to the PCICC card
|
||||
* in a type6 message. The 3 fields that must be filled in at execution
|
||||
* time are req_parml, rpl_parml and usage_domain. Note that all three
|
||||
* fields are *little*-endian. Actually, everything about this interface
|
||||
* is ascii/little-endian, since the device has 'Intel inside'.
|
||||
*
|
||||
* The CPRB is followed immediately by the parm block.
|
||||
* The parm block contains:
|
||||
* - function code ('PD' 0x5044 or 'PK' 0x504B)
|
||||
* - rule block (0x0A00 'PKCS-1.2' or 0x0A00 'ZERO-PAD')
|
||||
* - VUD block
|
||||
*/
|
||||
static struct CPRB static_cprb = {
|
||||
.cprb_len = __constant_cpu_to_le16(0x0070),
|
||||
.cprb_ver_id = 0x41,
|
||||
.func_id = {0x54,0x32},
|
||||
.checkpoint_flag= 0x01,
|
||||
.svr_namel = __constant_cpu_to_le16(0x0008),
|
||||
.svr_name = {'I','C','S','F',' ',' ',' ',' '}
|
||||
};
|
||||
|
||||
/**
|
||||
* Check the message for PKCS11 padding.
|
||||
*/
|
||||
static inline int is_PKCS11_padded(unsigned char *buffer, int length)
|
||||
{
|
||||
int i;
|
||||
if ((buffer[0] != 0x00) || (buffer[1] != 0x01))
|
||||
return 0;
|
||||
for (i = 2; i < length; i++)
|
||||
if (buffer[i] != 0xFF)
|
||||
break;
|
||||
if (i < 10 || i == length)
|
||||
return 0;
|
||||
if (buffer[i] != 0x00)
|
||||
return 0;
|
||||
return 1;
|
||||
}
|
||||
|
||||
/**
|
||||
* Check the message for PKCS12 padding.
|
||||
*/
|
||||
static inline int is_PKCS12_padded(unsigned char *buffer, int length)
|
||||
{
|
||||
int i;
|
||||
if ((buffer[0] != 0x00) || (buffer[1] != 0x02))
|
||||
return 0;
|
||||
for (i = 2; i < length; i++)
|
||||
if (buffer[i] == 0x00)
|
||||
break;
|
||||
if ((i < 10) || (i == length))
|
||||
return 0;
|
||||
if (buffer[i] != 0x00)
|
||||
return 0;
|
||||
return 1;
|
||||
}
|
||||
|
||||
/**
|
||||
* Convert a ICAMEX message to a type6 MEX message.
|
||||
*
|
||||
* @zdev: crypto device pointer
|
||||
* @zreq: crypto request pointer
|
||||
* @mex: pointer to user input data
|
||||
*
|
||||
* Returns 0 on success or -EFAULT.
|
||||
*/
|
||||
static int ICAMEX_msg_to_type6MEX_msg(struct zcrypt_device *zdev,
|
||||
struct ap_message *ap_msg,
|
||||
struct ica_rsa_modexpo *mex)
|
||||
{
|
||||
static struct type6_hdr static_type6_hdr = {
|
||||
.type = 0x06,
|
||||
.offset1 = 0x00000058,
|
||||
.agent_id = {0x01,0x00,0x43,0x43,0x41,0x2D,0x41,0x50,
|
||||
0x50,0x4C,0x20,0x20,0x20,0x01,0x01,0x01},
|
||||
.function_code = {'P','K'},
|
||||
};
|
||||
static struct function_and_rules_block static_pke_function_and_rules ={
|
||||
.function_code = {'P','K'},
|
||||
.ulen = __constant_cpu_to_le16(10),
|
||||
.only_rule = {'P','K','C','S','-','1','.','2'}
|
||||
};
|
||||
struct {
|
||||
struct type6_hdr hdr;
|
||||
struct CPRB cprb;
|
||||
struct function_and_rules_block fr;
|
||||
unsigned short length;
|
||||
char text[0];
|
||||
} __attribute__((packed)) *msg = ap_msg->message;
|
||||
int vud_len, pad_len, size;
|
||||
|
||||
/* VUD.ciphertext */
|
||||
if (copy_from_user(msg->text, mex->inputdata, mex->inputdatalength))
|
||||
return -EFAULT;
|
||||
|
||||
if (is_PKCS11_padded(msg->text, mex->inputdatalength))
|
||||
return -EINVAL;
|
||||
|
||||
/* static message header and f&r */
|
||||
msg->hdr = static_type6_hdr;
|
||||
msg->fr = static_pke_function_and_rules;
|
||||
|
||||
if (is_PKCS12_padded(msg->text, mex->inputdatalength)) {
|
||||
/* strip the padding and adjust the data length */
|
||||
pad_len = strnlen(msg->text + 2, mex->inputdatalength - 2) + 3;
|
||||
if (pad_len <= 9 || pad_len >= mex->inputdatalength)
|
||||
return -ENODEV;
|
||||
vud_len = mex->inputdatalength - pad_len;
|
||||
memmove(msg->text, msg->text + pad_len, vud_len);
|
||||
msg->length = cpu_to_le16(vud_len + 2);
|
||||
|
||||
/* Set up key after the variable length text. */
|
||||
size = zcrypt_type6_mex_key_en(mex, msg->text + vud_len, 0);
|
||||
if (size < 0)
|
||||
return size;
|
||||
size += sizeof(*msg) + vud_len; /* total size of msg */
|
||||
} else {
|
||||
vud_len = mex->inputdatalength;
|
||||
msg->length = cpu_to_le16(2 + vud_len);
|
||||
|
||||
msg->hdr.function_code[1] = 'D';
|
||||
msg->fr.function_code[1] = 'D';
|
||||
|
||||
/* Set up key after the variable length text. */
|
||||
size = zcrypt_type6_mex_key_de(mex, msg->text + vud_len, 0);
|
||||
if (size < 0)
|
||||
return size;
|
||||
size += sizeof(*msg) + vud_len; /* total size of msg */
|
||||
}
|
||||
|
||||
/* message header, cprb and f&r */
|
||||
msg->hdr.ToCardLen1 = (size - sizeof(msg->hdr) + 3) & -4;
|
||||
msg->hdr.FromCardLen1 = PCICC_MAX_RESPONSE_SIZE - sizeof(msg->hdr);
|
||||
|
||||
msg->cprb = static_cprb;
|
||||
msg->cprb.usage_domain[0]= AP_QID_QUEUE(zdev->ap_dev->qid);
|
||||
msg->cprb.req_parml = cpu_to_le16(size - sizeof(msg->hdr) -
|
||||
sizeof(msg->cprb));
|
||||
msg->cprb.rpl_parml = cpu_to_le16(msg->hdr.FromCardLen1);
|
||||
|
||||
ap_msg->length = (size + 3) & -4;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Convert a ICACRT message to a type6 CRT message.
|
||||
*
|
||||
* @zdev: crypto device pointer
|
||||
* @zreq: crypto request pointer
|
||||
* @crt: pointer to user input data
|
||||
*
|
||||
* Returns 0 on success or -EFAULT.
|
||||
*/
|
||||
static int ICACRT_msg_to_type6CRT_msg(struct zcrypt_device *zdev,
|
||||
struct ap_message *ap_msg,
|
||||
struct ica_rsa_modexpo_crt *crt)
|
||||
{
|
||||
static struct type6_hdr static_type6_hdr = {
|
||||
.type = 0x06,
|
||||
.offset1 = 0x00000058,
|
||||
.agent_id = {0x01,0x00,0x43,0x43,0x41,0x2D,0x41,0x50,
|
||||
0x50,0x4C,0x20,0x20,0x20,0x01,0x01,0x01},
|
||||
.function_code = {'P','D'},
|
||||
};
|
||||
static struct function_and_rules_block static_pkd_function_and_rules ={
|
||||
.function_code = {'P','D'},
|
||||
.ulen = __constant_cpu_to_le16(10),
|
||||
.only_rule = {'P','K','C','S','-','1','.','2'}
|
||||
};
|
||||
struct {
|
||||
struct type6_hdr hdr;
|
||||
struct CPRB cprb;
|
||||
struct function_and_rules_block fr;
|
||||
unsigned short length;
|
||||
char text[0];
|
||||
} __attribute__((packed)) *msg = ap_msg->message;
|
||||
int size;
|
||||
|
||||
/* VUD.ciphertext */
|
||||
msg->length = cpu_to_le16(2 + crt->inputdatalength);
|
||||
if (copy_from_user(msg->text, crt->inputdata, crt->inputdatalength))
|
||||
return -EFAULT;
|
||||
|
||||
if (is_PKCS11_padded(msg->text, crt->inputdatalength))
|
||||
return -EINVAL;
|
||||
|
||||
/* Set up key after the variable length text. */
|
||||
size = zcrypt_type6_crt_key(crt, msg->text + crt->inputdatalength, 0);
|
||||
if (size < 0)
|
||||
return size;
|
||||
size += sizeof(*msg) + crt->inputdatalength; /* total size of msg */
|
||||
|
||||
/* message header, cprb and f&r */
|
||||
msg->hdr = static_type6_hdr;
|
||||
msg->hdr.ToCardLen1 = (size - sizeof(msg->hdr) + 3) & -4;
|
||||
msg->hdr.FromCardLen1 = PCICC_MAX_RESPONSE_SIZE - sizeof(msg->hdr);
|
||||
|
||||
msg->cprb = static_cprb;
|
||||
msg->cprb.usage_domain[0] = AP_QID_QUEUE(zdev->ap_dev->qid);
|
||||
msg->cprb.req_parml = msg->cprb.rpl_parml =
|
||||
cpu_to_le16(size - sizeof(msg->hdr) - sizeof(msg->cprb));
|
||||
|
||||
msg->fr = static_pkd_function_and_rules;
|
||||
|
||||
ap_msg->length = (size + 3) & -4;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Copy results from a type 86 reply message back to user space.
|
||||
*
|
||||
* @zdev: crypto device pointer
|
||||
* @reply: reply AP message.
|
||||
* @data: pointer to user output data
|
||||
* @length: size of user output data
|
||||
*
|
||||
* Returns 0 on success or -EINVAL, -EFAULT, -EAGAIN in case of an error.
|
||||
*/
|
||||
struct type86_reply {
|
||||
struct type86_hdr hdr;
|
||||
struct type86_fmt2_ext fmt2;
|
||||
struct CPRB cprb;
|
||||
unsigned char pad[4]; /* 4 byte function code/rules block ? */
|
||||
unsigned short length;
|
||||
char text[0];
|
||||
} __attribute__((packed));
|
||||
|
||||
static int convert_type86(struct zcrypt_device *zdev,
|
||||
struct ap_message *reply,
|
||||
char __user *outputdata,
|
||||
unsigned int outputdatalength)
|
||||
{
|
||||
static unsigned char static_pad[] = {
|
||||
0x00,0x02,
|
||||
0x1B,0x7B,0x5D,0xB5,0x75,0x01,0x3D,0xFD,
|
||||
0x8D,0xD1,0xC7,0x03,0x2D,0x09,0x23,0x57,
|
||||
0x89,0x49,0xB9,0x3F,0xBB,0x99,0x41,0x5B,
|
||||
0x75,0x21,0x7B,0x9D,0x3B,0x6B,0x51,0x39,
|
||||
0xBB,0x0D,0x35,0xB9,0x89,0x0F,0x93,0xA5,
|
||||
0x0B,0x47,0xF1,0xD3,0xBB,0xCB,0xF1,0x9D,
|
||||
0x23,0x73,0x71,0xFF,0xF3,0xF5,0x45,0xFB,
|
||||
0x61,0x29,0x23,0xFD,0xF1,0x29,0x3F,0x7F,
|
||||
0x17,0xB7,0x1B,0xA9,0x19,0xBD,0x57,0xA9,
|
||||
0xD7,0x95,0xA3,0xCB,0xED,0x1D,0xDB,0x45,
|
||||
0x7D,0x11,0xD1,0x51,0x1B,0xED,0x71,0xE9,
|
||||
0xB1,0xD1,0xAB,0xAB,0x21,0x2B,0x1B,0x9F,
|
||||
0x3B,0x9F,0xF7,0xF7,0xBD,0x63,0xEB,0xAD,
|
||||
0xDF,0xB3,0x6F,0x5B,0xDB,0x8D,0xA9,0x5D,
|
||||
0xE3,0x7D,0x77,0x49,0x47,0xF5,0xA7,0xFD,
|
||||
0xAB,0x2F,0x27,0x35,0x77,0xD3,0x49,0xC9,
|
||||
0x09,0xEB,0xB1,0xF9,0xBF,0x4B,0xCB,0x2B,
|
||||
0xEB,0xEB,0x05,0xFF,0x7D,0xC7,0x91,0x8B,
|
||||
0x09,0x83,0xB9,0xB9,0x69,0x33,0x39,0x6B,
|
||||
0x79,0x75,0x19,0xBF,0xBB,0x07,0x1D,0xBD,
|
||||
0x29,0xBF,0x39,0x95,0x93,0x1D,0x35,0xC7,
|
||||
0xC9,0x4D,0xE5,0x97,0x0B,0x43,0x9B,0xF1,
|
||||
0x16,0x93,0x03,0x1F,0xA5,0xFB,0xDB,0xF3,
|
||||
0x27,0x4F,0x27,0x61,0x05,0x1F,0xB9,0x23,
|
||||
0x2F,0xC3,0x81,0xA9,0x23,0x71,0x55,0x55,
|
||||
0xEB,0xED,0x41,0xE5,0xF3,0x11,0xF1,0x43,
|
||||
0x69,0x03,0xBD,0x0B,0x37,0x0F,0x51,0x8F,
|
||||
0x0B,0xB5,0x89,0x5B,0x67,0xA9,0xD9,0x4F,
|
||||
0x01,0xF9,0x21,0x77,0x37,0x73,0x79,0xC5,
|
||||
0x7F,0x51,0xC1,0xCF,0x97,0xA1,0x75,0xAD,
|
||||
0x35,0x9D,0xD3,0xD3,0xA7,0x9D,0x5D,0x41,
|
||||
0x6F,0x65,0x1B,0xCF,0xA9,0x87,0x91,0x09
|
||||
};
|
||||
struct type86_reply *msg = reply->message;
|
||||
unsigned short service_rc, service_rs;
|
||||
unsigned int reply_len, pad_len;
|
||||
char *data;
|
||||
|
||||
service_rc = le16_to_cpu(msg->cprb.ccp_rtcode);
|
||||
if (unlikely(service_rc != 0)) {
|
||||
service_rs = le16_to_cpu(msg->cprb.ccp_rscode);
|
||||
if (service_rc == 8 && service_rs == 66) {
|
||||
PDEBUG("Bad block format on PCICC\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
if (service_rc == 8 && service_rs == 65) {
|
||||
PDEBUG("Probably an even modulus on PCICC\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
if (service_rc == 8 && service_rs == 770) {
|
||||
PDEBUG("Invalid key length on PCICC\n");
|
||||
zdev->max_mod_size = PCICC_MAX_MOD_SIZE_OLD;
|
||||
return -EAGAIN;
|
||||
}
|
||||
if (service_rc == 8 && service_rs == 783) {
|
||||
PDEBUG("Extended bitlengths not enabled on PCICC\n");
|
||||
zdev->max_mod_size = PCICC_MAX_MOD_SIZE_OLD;
|
||||
return -EAGAIN;
|
||||
}
|
||||
PRINTK("Unknown service rc/rs (PCICC): %d/%d\n",
|
||||
service_rc, service_rs);
|
||||
zdev->online = 0;
|
||||
return -EAGAIN; /* repeat the request on a different device. */
|
||||
}
|
||||
data = msg->text;
|
||||
reply_len = le16_to_cpu(msg->length) - 2;
|
||||
if (reply_len > outputdatalength)
|
||||
return -EINVAL;
|
||||
/**
|
||||
* For all encipher requests, the length of the ciphertext (reply_len)
|
||||
* will always equal the modulus length. For MEX decipher requests
|
||||
* the output needs to get padded. Minimum pad size is 10.
|
||||
*
|
||||
* Currently, the cases where padding will be added is for:
|
||||
* - PCIXCC_MCL2 using a CRT form token (since PKD didn't support
|
||||
* ZERO-PAD and CRT is only supported for PKD requests)
|
||||
* - PCICC, always
|
||||
*/
|
||||
pad_len = outputdatalength - reply_len;
|
||||
if (pad_len > 0) {
|
||||
if (pad_len < 10)
|
||||
return -EINVAL;
|
||||
/* 'restore' padding left in the PCICC/PCIXCC card. */
|
||||
if (copy_to_user(outputdata, static_pad, pad_len - 1))
|
||||
return -EFAULT;
|
||||
if (put_user(0, outputdata + pad_len - 1))
|
||||
return -EFAULT;
|
||||
}
|
||||
/* Copy the crypto response to user space. */
|
||||
if (copy_to_user(outputdata + pad_len, data, reply_len))
|
||||
return -EFAULT;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int convert_response(struct zcrypt_device *zdev,
|
||||
struct ap_message *reply,
|
||||
char __user *outputdata,
|
||||
unsigned int outputdatalength)
|
||||
{
|
||||
struct type86_reply *msg = reply->message;
|
||||
|
||||
/* Response type byte is the second byte in the response. */
|
||||
switch (msg->hdr.type) {
|
||||
case TYPE82_RSP_CODE:
|
||||
case TYPE88_RSP_CODE:
|
||||
return convert_error(zdev, reply);
|
||||
case TYPE86_RSP_CODE:
|
||||
if (msg->hdr.reply_code)
|
||||
return convert_error(zdev, reply);
|
||||
if (msg->cprb.cprb_ver_id == 0x01)
|
||||
return convert_type86(zdev, reply,
|
||||
outputdata, outputdatalength);
|
||||
/* no break, incorrect cprb version is an unknown response */
|
||||
default: /* Unknown response type, this should NEVER EVER happen */
|
||||
PRINTK("Unrecognized Message Header: %08x%08x\n",
|
||||
*(unsigned int *) reply->message,
|
||||
*(unsigned int *) (reply->message+4));
|
||||
zdev->online = 0;
|
||||
return -EAGAIN; /* repeat the request on a different device. */
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* This function is called from the AP bus code after a crypto request
|
||||
* "msg" has finished with the reply message "reply".
|
||||
* It is called from tasklet context.
|
||||
* @ap_dev: pointer to the AP device
|
||||
* @msg: pointer to the AP message
|
||||
* @reply: pointer to the AP reply message
|
||||
*/
|
||||
static void zcrypt_pcicc_receive(struct ap_device *ap_dev,
|
||||
struct ap_message *msg,
|
||||
struct ap_message *reply)
|
||||
{
|
||||
static struct error_hdr error_reply = {
|
||||
.type = TYPE82_RSP_CODE,
|
||||
.reply_code = REP82_ERROR_MACHINE_FAILURE,
|
||||
};
|
||||
struct type86_reply *t86r = reply->message;
|
||||
int length;
|
||||
|
||||
/* Copy the reply message to the request message buffer. */
|
||||
if (IS_ERR(reply))
|
||||
memcpy(msg->message, &error_reply, sizeof(error_reply));
|
||||
else if (t86r->hdr.type == TYPE86_RSP_CODE &&
|
||||
t86r->cprb.cprb_ver_id == 0x01) {
|
||||
length = sizeof(struct type86_reply) + t86r->length - 2;
|
||||
length = min(PCICC_MAX_RESPONSE_SIZE, length);
|
||||
memcpy(msg->message, reply->message, length);
|
||||
} else
|
||||
memcpy(msg->message, reply->message, sizeof error_reply);
|
||||
complete((struct completion *) msg->private);
|
||||
}
|
||||
|
||||
static atomic_t zcrypt_step = ATOMIC_INIT(0);
|
||||
|
||||
/**
|
||||
* The request distributor calls this function if it picked the PCICC
|
||||
* device to handle a modexpo request.
|
||||
* @zdev: pointer to zcrypt_device structure that identifies the
|
||||
* PCICC device to the request distributor
|
||||
* @mex: pointer to the modexpo request buffer
|
||||
*/
|
||||
static long zcrypt_pcicc_modexpo(struct zcrypt_device *zdev,
|
||||
struct ica_rsa_modexpo *mex)
|
||||
{
|
||||
struct ap_message ap_msg;
|
||||
struct completion work;
|
||||
int rc;
|
||||
|
||||
ap_msg.message = (void *) get_zeroed_page(GFP_KERNEL);
|
||||
if (!ap_msg.message)
|
||||
return -ENOMEM;
|
||||
ap_msg.length = PAGE_SIZE;
|
||||
ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
|
||||
atomic_inc_return(&zcrypt_step);
|
||||
ap_msg.private = &work;
|
||||
rc = ICAMEX_msg_to_type6MEX_msg(zdev, &ap_msg, mex);
|
||||
if (rc)
|
||||
goto out_free;
|
||||
init_completion(&work);
|
||||
ap_queue_message(zdev->ap_dev, &ap_msg);
|
||||
rc = wait_for_completion_interruptible_timeout(
|
||||
&work, PCICC_CLEANUP_TIME);
|
||||
if (rc > 0)
|
||||
rc = convert_response(zdev, &ap_msg, mex->outputdata,
|
||||
mex->outputdatalength);
|
||||
else {
|
||||
/* Signal pending or message timed out. */
|
||||
ap_cancel_message(zdev->ap_dev, &ap_msg);
|
||||
if (rc == 0)
|
||||
/* Message timed out. */
|
||||
rc = -ETIME;
|
||||
}
|
||||
out_free:
|
||||
free_page((unsigned long) ap_msg.message);
|
||||
return rc;
|
||||
}
|
||||
|
||||
/**
|
||||
* The request distributor calls this function if it picked the PCICC
|
||||
* device to handle a modexpo_crt request.
|
||||
* @zdev: pointer to zcrypt_device structure that identifies the
|
||||
* PCICC device to the request distributor
|
||||
* @crt: pointer to the modexpoc_crt request buffer
|
||||
*/
|
||||
static long zcrypt_pcicc_modexpo_crt(struct zcrypt_device *zdev,
|
||||
struct ica_rsa_modexpo_crt *crt)
|
||||
{
|
||||
struct ap_message ap_msg;
|
||||
struct completion work;
|
||||
int rc;
|
||||
|
||||
ap_msg.message = (void *) get_zeroed_page(GFP_KERNEL);
|
||||
if (!ap_msg.message)
|
||||
return -ENOMEM;
|
||||
ap_msg.length = PAGE_SIZE;
|
||||
ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
|
||||
atomic_inc_return(&zcrypt_step);
|
||||
ap_msg.private = &work;
|
||||
rc = ICACRT_msg_to_type6CRT_msg(zdev, &ap_msg, crt);
|
||||
if (rc)
|
||||
goto out_free;
|
||||
init_completion(&work);
|
||||
ap_queue_message(zdev->ap_dev, &ap_msg);
|
||||
rc = wait_for_completion_interruptible_timeout(
|
||||
&work, PCICC_CLEANUP_TIME);
|
||||
if (rc > 0)
|
||||
rc = convert_response(zdev, &ap_msg, crt->outputdata,
|
||||
crt->outputdatalength);
|
||||
else {
|
||||
/* Signal pending or message timed out. */
|
||||
ap_cancel_message(zdev->ap_dev, &ap_msg);
|
||||
if (rc == 0)
|
||||
/* Message timed out. */
|
||||
rc = -ETIME;
|
||||
}
|
||||
out_free:
|
||||
free_page((unsigned long) ap_msg.message);
|
||||
return rc;
|
||||
}
|
||||
|
||||
/**
|
||||
* The crypto operations for a PCICC card.
|
||||
*/
|
||||
static struct zcrypt_ops zcrypt_pcicc_ops = {
|
||||
.rsa_modexpo = zcrypt_pcicc_modexpo,
|
||||
.rsa_modexpo_crt = zcrypt_pcicc_modexpo_crt,
|
||||
};
|
||||
|
||||
/**
|
||||
* Probe function for PCICC cards. It always accepts the AP device
|
||||
* since the bus_match already checked the hardware type.
|
||||
* @ap_dev: pointer to the AP device.
|
||||
*/
|
||||
static int zcrypt_pcicc_probe(struct ap_device *ap_dev)
|
||||
{
|
||||
struct zcrypt_device *zdev;
|
||||
int rc;
|
||||
|
||||
zdev = zcrypt_device_alloc(PCICC_MAX_RESPONSE_SIZE);
|
||||
if (!zdev)
|
||||
return -ENOMEM;
|
||||
zdev->ap_dev = ap_dev;
|
||||
zdev->ops = &zcrypt_pcicc_ops;
|
||||
zdev->online = 1;
|
||||
zdev->user_space_type = ZCRYPT_PCICC;
|
||||
zdev->type_string = "PCICC";
|
||||
zdev->min_mod_size = PCICC_MIN_MOD_SIZE;
|
||||
zdev->max_mod_size = PCICC_MAX_MOD_SIZE;
|
||||
zdev->speed_rating = PCICC_SPEED_RATING;
|
||||
ap_dev->reply = &zdev->reply;
|
||||
ap_dev->private = zdev;
|
||||
rc = zcrypt_device_register(zdev);
|
||||
if (rc)
|
||||
goto out_free;
|
||||
return 0;
|
||||
|
||||
out_free:
|
||||
ap_dev->private = NULL;
|
||||
zcrypt_device_free(zdev);
|
||||
return rc;
|
||||
}
|
||||
|
||||
/**
|
||||
* This is called to remove the extended PCICC driver information
|
||||
* if an AP device is removed.
|
||||
*/
|
||||
static void zcrypt_pcicc_remove(struct ap_device *ap_dev)
|
||||
{
|
||||
struct zcrypt_device *zdev = ap_dev->private;
|
||||
|
||||
zcrypt_device_unregister(zdev);
|
||||
}
|
||||
|
||||
int __init zcrypt_pcicc_init(void)
|
||||
{
|
||||
return ap_driver_register(&zcrypt_pcicc_driver, THIS_MODULE, "pcicc");
|
||||
}
|
||||
|
||||
void zcrypt_pcicc_exit(void)
|
||||
{
|
||||
ap_driver_unregister(&zcrypt_pcicc_driver);
|
||||
}
|
||||
|
||||
#ifndef CONFIG_ZCRYPT_MONOLITHIC
|
||||
module_init(zcrypt_pcicc_init);
|
||||
module_exit(zcrypt_pcicc_exit);
|
||||
#endif
|
176
drivers/s390/crypto/zcrypt_pcicc.h
Normal file
176
drivers/s390/crypto/zcrypt_pcicc.h
Normal file
|
@ -0,0 +1,176 @@
|
|||
/*
|
||||
* linux/drivers/s390/crypto/zcrypt_pcicc.h
|
||||
*
|
||||
* zcrypt 2.0.0
|
||||
*
|
||||
* Copyright (C) 2001, 2006 IBM Corporation
|
||||
* 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_PCICC_H_
|
||||
#define _ZCRYPT_PCICC_H_
|
||||
|
||||
/**
|
||||
* The type 6 message family is associated with PCICC or PCIXCC cards.
|
||||
*
|
||||
* It contains a message header followed by a CPRB, both of which
|
||||
* are described below.
|
||||
*
|
||||
* Note that all reserved fields must be zeroes.
|
||||
*/
|
||||
struct type6_hdr {
|
||||
unsigned char reserved1; /* 0x00 */
|
||||
unsigned char type; /* 0x06 */
|
||||
unsigned char reserved2[2]; /* 0x0000 */
|
||||
unsigned char right[4]; /* 0x00000000 */
|
||||
unsigned char reserved3[2]; /* 0x0000 */
|
||||
unsigned char reserved4[2]; /* 0x0000 */
|
||||
unsigned char apfs[4]; /* 0x00000000 */
|
||||
unsigned int offset1; /* 0x00000058 (offset to CPRB) */
|
||||
unsigned int offset2; /* 0x00000000 */
|
||||
unsigned int offset3; /* 0x00000000 */
|
||||
unsigned int offset4; /* 0x00000000 */
|
||||
unsigned char agent_id[16]; /* PCICC: */
|
||||
/* 0x0100 */
|
||||
/* 0x4343412d4150504c202020 */
|
||||
/* 0x010101 */
|
||||
/* PCIXCC: */
|
||||
/* 0x4341000000000000 */
|
||||
/* 0x0000000000000000 */
|
||||
unsigned char rqid[2]; /* rqid. internal to 603 */
|
||||
unsigned char reserved5[2]; /* 0x0000 */
|
||||
unsigned char function_code[2]; /* for PKD, 0x5044 (ascii 'PD') */
|
||||
unsigned char reserved6[2]; /* 0x0000 */
|
||||
unsigned int ToCardLen1; /* (request CPRB len + 3) & -4 */
|
||||
unsigned int ToCardLen2; /* db len 0x00000000 for PKD */
|
||||
unsigned int ToCardLen3; /* 0x00000000 */
|
||||
unsigned int ToCardLen4; /* 0x00000000 */
|
||||
unsigned int FromCardLen1; /* response buffer length */
|
||||
unsigned int FromCardLen2; /* db len 0x00000000 for PKD */
|
||||
unsigned int FromCardLen3; /* 0x00000000 */
|
||||
unsigned int FromCardLen4; /* 0x00000000 */
|
||||
} __attribute__((packed));
|
||||
|
||||
/**
|
||||
* CPRB
|
||||
* Note that all shorts, ints and longs are little-endian.
|
||||
* All pointer fields are 32-bits long, and mean nothing
|
||||
*
|
||||
* A request CPRB is followed by a request_parameter_block.
|
||||
*
|
||||
* The request (or reply) parameter block is organized thus:
|
||||
* function code
|
||||
* VUD block
|
||||
* key block
|
||||
*/
|
||||
struct CPRB {
|
||||
unsigned short cprb_len; /* CPRB length */
|
||||
unsigned char cprb_ver_id; /* CPRB version id. */
|
||||
unsigned char pad_000; /* Alignment pad byte. */
|
||||
unsigned char srpi_rtcode[4]; /* SRPI return code LELONG */
|
||||
unsigned char srpi_verb; /* SRPI verb type */
|
||||
unsigned char flags; /* flags */
|
||||
unsigned char func_id[2]; /* function id */
|
||||
unsigned char checkpoint_flag; /* */
|
||||
unsigned char resv2; /* reserved */
|
||||
unsigned short req_parml; /* request parameter buffer */
|
||||
/* length 16-bit little endian */
|
||||
unsigned char req_parmp[4]; /* request parameter buffer *
|
||||
* pointer (means nothing: the *
|
||||
* parameter buffer follows *
|
||||
* the CPRB). */
|
||||
unsigned char req_datal[4]; /* request data buffer */
|
||||
/* length ULELONG */
|
||||
unsigned char req_datap[4]; /* request data buffer */
|
||||
/* pointer */
|
||||
unsigned short rpl_parml; /* reply parameter buffer */
|
||||
/* length 16-bit little endian */
|
||||
unsigned char pad_001[2]; /* Alignment pad bytes. ULESHORT */
|
||||
unsigned char rpl_parmp[4]; /* reply parameter buffer *
|
||||
* pointer (means nothing: the *
|
||||
* parameter buffer follows *
|
||||
* the CPRB). */
|
||||
unsigned char rpl_datal[4]; /* reply data buffer len ULELONG */
|
||||
unsigned char rpl_datap[4]; /* reply data buffer */
|
||||
/* pointer */
|
||||
unsigned short ccp_rscode; /* server reason code ULESHORT */
|
||||
unsigned short ccp_rtcode; /* server return code ULESHORT */
|
||||
unsigned char repd_parml[2]; /* replied parameter len ULESHORT*/
|
||||
unsigned char mac_data_len[2]; /* Mac Data Length ULESHORT */
|
||||
unsigned char repd_datal[4]; /* replied data length ULELONG */
|
||||
unsigned char req_pc[2]; /* PC identifier */
|
||||
unsigned char res_origin[8]; /* resource origin */
|
||||
unsigned char mac_value[8]; /* Mac Value */
|
||||
unsigned char logon_id[8]; /* Logon Identifier */
|
||||
unsigned char usage_domain[2]; /* cdx */
|
||||
unsigned char resv3[18]; /* reserved for requestor */
|
||||
unsigned short svr_namel; /* server name length ULESHORT */
|
||||
unsigned char svr_name[8]; /* server name */
|
||||
} __attribute__((packed));
|
||||
|
||||
/**
|
||||
* The type 86 message family is associated with PCICC and PCIXCC cards.
|
||||
*
|
||||
* It contains a message header followed by a CPRB. The CPRB is
|
||||
* the same as the request CPRB, which is described above.
|
||||
*
|
||||
* If format is 1, an error condition exists and no data beyond
|
||||
* the 8-byte message header is of interest.
|
||||
*
|
||||
* The non-error message is shown below.
|
||||
*
|
||||
* Note that all reserved fields must be zeroes.
|
||||
*/
|
||||
struct type86_hdr {
|
||||
unsigned char reserved1; /* 0x00 */
|
||||
unsigned char type; /* 0x86 */
|
||||
unsigned char format; /* 0x01 (error) or 0x02 (ok) */
|
||||
unsigned char reserved2; /* 0x00 */
|
||||
unsigned char reply_code; /* reply code (see above) */
|
||||
unsigned char reserved3[3]; /* 0x000000 */
|
||||
} __attribute__((packed));
|
||||
|
||||
#define TYPE86_RSP_CODE 0x86
|
||||
#define TYPE86_FMT2 0x02
|
||||
|
||||
struct type86_fmt2_ext {
|
||||
unsigned char reserved[4]; /* 0x00000000 */
|
||||
unsigned char apfs[4]; /* final status */
|
||||
unsigned int count1; /* length of CPRB + parameters */
|
||||
unsigned int offset1; /* offset to CPRB */
|
||||
unsigned int count2; /* 0x00000000 */
|
||||
unsigned int offset2; /* db offset 0x00000000 for PKD */
|
||||
unsigned int count3; /* 0x00000000 */
|
||||
unsigned int offset3; /* 0x00000000 */
|
||||
unsigned int count4; /* 0x00000000 */
|
||||
unsigned int offset4; /* 0x00000000 */
|
||||
} __attribute__((packed));
|
||||
|
||||
struct function_and_rules_block {
|
||||
unsigned char function_code[2];
|
||||
unsigned short ulen;
|
||||
unsigned char only_rule[8];
|
||||
} __attribute__((packed));
|
||||
|
||||
int zcrypt_pcicc_init(void);
|
||||
void zcrypt_pcicc_exit(void);
|
||||
|
||||
#endif /* _ZCRYPT_PCICC_H_ */
|
714
drivers/s390/crypto/zcrypt_pcixcc.c
Normal file
714
drivers/s390/crypto/zcrypt_pcixcc.c
Normal file
|
@ -0,0 +1,714 @@
|
|||
/*
|
||||
* linux/drivers/s390/crypto/zcrypt_pcixcc.c
|
||||
*
|
||||
* zcrypt 2.0.0
|
||||
*
|
||||
* Copyright (C) 2001, 2006 IBM Corporation
|
||||
* 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>
|
||||
* Ralph Wuerthner <rwuerthn@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.
|
||||
*/
|
||||
|
||||
#include <linux/module.h>
|
||||
#include <linux/init.h>
|
||||
#include <linux/err.h>
|
||||
#include <linux/delay.h>
|
||||
#include <asm/atomic.h>
|
||||
#include <asm/uaccess.h>
|
||||
|
||||
#include "ap_bus.h"
|
||||
#include "zcrypt_api.h"
|
||||
#include "zcrypt_error.h"
|
||||
#include "zcrypt_pcicc.h"
|
||||
#include "zcrypt_pcixcc.h"
|
||||
#include "zcrypt_cca_key.h"
|
||||
|
||||
#define PCIXCC_MIN_MOD_SIZE 16 /* 128 bits */
|
||||
#define PCIXCC_MIN_MOD_SIZE_OLD 64 /* 512 bits */
|
||||
#define PCIXCC_MAX_MOD_SIZE 256 /* 2048 bits */
|
||||
|
||||
#define PCIXCC_MCL2_SPEED_RATING 7870 /* FIXME: needs finetuning */
|
||||
#define PCIXCC_MCL3_SPEED_RATING 7870
|
||||
#define CEX2C_SPEED_RATING 8540
|
||||
|
||||
#define PCIXCC_MAX_ICA_MESSAGE_SIZE 0x77c /* max size type6 v2 crt message */
|
||||
#define PCIXCC_MAX_ICA_RESPONSE_SIZE 0x77c /* max size type86 v2 reply */
|
||||
|
||||
#define PCIXCC_MAX_XCRB_MESSAGE_SIZE (12*1024)
|
||||
#define PCIXCC_MAX_XCRB_RESPONSE_SIZE PCIXCC_MAX_XCRB_MESSAGE_SIZE
|
||||
#define PCIXCC_MAX_XCRB_DATA_SIZE (11*1024)
|
||||
#define PCIXCC_MAX_XCRB_REPLY_SIZE (5*1024)
|
||||
|
||||
#define PCIXCC_MAX_RESPONSE_SIZE PCIXCC_MAX_XCRB_RESPONSE_SIZE
|
||||
|
||||
#define PCIXCC_CLEANUP_TIME (15*HZ)
|
||||
|
||||
static struct ap_device_id zcrypt_pcixcc_ids[] = {
|
||||
{ AP_DEVICE(AP_DEVICE_TYPE_PCIXCC) },
|
||||
{ AP_DEVICE(AP_DEVICE_TYPE_CEX2C) },
|
||||
{ /* end of list */ },
|
||||
};
|
||||
|
||||
#ifndef CONFIG_ZCRYPT_MONOLITHIC
|
||||
MODULE_DEVICE_TABLE(ap, zcrypt_pcixcc_ids);
|
||||
MODULE_AUTHOR("IBM Corporation");
|
||||
MODULE_DESCRIPTION("PCIXCC Cryptographic Coprocessor device driver, "
|
||||
"Copyright 2001, 2006 IBM Corporation");
|
||||
MODULE_LICENSE("GPL");
|
||||
#endif
|
||||
|
||||
static int zcrypt_pcixcc_probe(struct ap_device *ap_dev);
|
||||
static void zcrypt_pcixcc_remove(struct ap_device *ap_dev);
|
||||
static void zcrypt_pcixcc_receive(struct ap_device *, struct ap_message *,
|
||||
struct ap_message *);
|
||||
|
||||
static struct ap_driver zcrypt_pcixcc_driver = {
|
||||
.probe = zcrypt_pcixcc_probe,
|
||||
.remove = zcrypt_pcixcc_remove,
|
||||
.receive = zcrypt_pcixcc_receive,
|
||||
.ids = zcrypt_pcixcc_ids,
|
||||
};
|
||||
|
||||
/**
|
||||
* The following is used to initialize the CPRBX passed to the PCIXCC/CEX2C
|
||||
* card in a type6 message. The 3 fields that must be filled in at execution
|
||||
* time are req_parml, rpl_parml and usage_domain.
|
||||
* Everything about this interface is ascii/big-endian, since the
|
||||
* device does *not* have 'Intel inside'.
|
||||
*
|
||||
* The CPRBX is followed immediately by the parm block.
|
||||
* The parm block contains:
|
||||
* - function code ('PD' 0x5044 or 'PK' 0x504B)
|
||||
* - rule block (one of:)
|
||||
* + 0x000A 'PKCS-1.2' (MCL2 'PD')
|
||||
* + 0x000A 'ZERO-PAD' (MCL2 'PK')
|
||||
* + 0x000A 'ZERO-PAD' (MCL3 'PD' or CEX2C 'PD')
|
||||
* + 0x000A 'MRP ' (MCL3 'PK' or CEX2C 'PK')
|
||||
* - VUD block
|
||||
*/
|
||||
static struct CPRBX static_cprbx = {
|
||||
.cprb_len = 0x00DC,
|
||||
.cprb_ver_id = 0x02,
|
||||
.func_id = {0x54,0x32},
|
||||
};
|
||||
|
||||
/**
|
||||
* Convert a ICAMEX message to a type6 MEX message.
|
||||
*
|
||||
* @zdev: crypto device pointer
|
||||
* @ap_msg: pointer to AP message
|
||||
* @mex: pointer to user input data
|
||||
*
|
||||
* Returns 0 on success or -EFAULT.
|
||||
*/
|
||||
static int ICAMEX_msg_to_type6MEX_msgX(struct zcrypt_device *zdev,
|
||||
struct ap_message *ap_msg,
|
||||
struct ica_rsa_modexpo *mex)
|
||||
{
|
||||
static struct type6_hdr static_type6_hdrX = {
|
||||
.type = 0x06,
|
||||
.offset1 = 0x00000058,
|
||||
.agent_id = {'C','A',},
|
||||
.function_code = {'P','K'},
|
||||
};
|
||||
static struct function_and_rules_block static_pke_fnr = {
|
||||
.function_code = {'P','K'},
|
||||
.ulen = 10,
|
||||
.only_rule = {'M','R','P',' ',' ',' ',' ',' '}
|
||||
};
|
||||
static struct function_and_rules_block static_pke_fnr_MCL2 = {
|
||||
.function_code = {'P','K'},
|
||||
.ulen = 10,
|
||||
.only_rule = {'Z','E','R','O','-','P','A','D'}
|
||||
};
|
||||
struct {
|
||||
struct type6_hdr hdr;
|
||||
struct CPRBX cprbx;
|
||||
struct function_and_rules_block fr;
|
||||
unsigned short length;
|
||||
char text[0];
|
||||
} __attribute__((packed)) *msg = ap_msg->message;
|
||||
int size;
|
||||
|
||||
/* VUD.ciphertext */
|
||||
msg->length = mex->inputdatalength + 2;
|
||||
if (copy_from_user(msg->text, mex->inputdata, mex->inputdatalength))
|
||||
return -EFAULT;
|
||||
|
||||
/* Set up key which is located after the variable length text. */
|
||||
size = zcrypt_type6_mex_key_en(mex, msg->text+mex->inputdatalength, 1);
|
||||
if (size < 0)
|
||||
return size;
|
||||
size += sizeof(*msg) + mex->inputdatalength;
|
||||
|
||||
/* message header, cprbx and f&r */
|
||||
msg->hdr = static_type6_hdrX;
|
||||
msg->hdr.ToCardLen1 = size - sizeof(msg->hdr);
|
||||
msg->hdr.FromCardLen1 = PCIXCC_MAX_ICA_RESPONSE_SIZE - sizeof(msg->hdr);
|
||||
|
||||
msg->cprbx = static_cprbx;
|
||||
msg->cprbx.domain = AP_QID_QUEUE(zdev->ap_dev->qid);
|
||||
msg->cprbx.rpl_msgbl = msg->hdr.FromCardLen1;
|
||||
|
||||
msg->fr = (zdev->user_space_type == ZCRYPT_PCIXCC_MCL2) ?
|
||||
static_pke_fnr_MCL2 : static_pke_fnr;
|
||||
|
||||
msg->cprbx.req_parml = size - sizeof(msg->hdr) - sizeof(msg->cprbx);
|
||||
|
||||
ap_msg->length = size;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Convert a ICACRT message to a type6 CRT message.
|
||||
*
|
||||
* @zdev: crypto device pointer
|
||||
* @ap_msg: pointer to AP message
|
||||
* @crt: pointer to user input data
|
||||
*
|
||||
* Returns 0 on success or -EFAULT.
|
||||
*/
|
||||
static int ICACRT_msg_to_type6CRT_msgX(struct zcrypt_device *zdev,
|
||||
struct ap_message *ap_msg,
|
||||
struct ica_rsa_modexpo_crt *crt)
|
||||
{
|
||||
static struct type6_hdr static_type6_hdrX = {
|
||||
.type = 0x06,
|
||||
.offset1 = 0x00000058,
|
||||
.agent_id = {'C','A',},
|
||||
.function_code = {'P','D'},
|
||||
};
|
||||
static struct function_and_rules_block static_pkd_fnr = {
|
||||
.function_code = {'P','D'},
|
||||
.ulen = 10,
|
||||
.only_rule = {'Z','E','R','O','-','P','A','D'}
|
||||
};
|
||||
|
||||
static struct function_and_rules_block static_pkd_fnr_MCL2 = {
|
||||
.function_code = {'P','D'},
|
||||
.ulen = 10,
|
||||
.only_rule = {'P','K','C','S','-','1','.','2'}
|
||||
};
|
||||
struct {
|
||||
struct type6_hdr hdr;
|
||||
struct CPRBX cprbx;
|
||||
struct function_and_rules_block fr;
|
||||
unsigned short length;
|
||||
char text[0];
|
||||
} __attribute__((packed)) *msg = ap_msg->message;
|
||||
int size;
|
||||
|
||||
/* VUD.ciphertext */
|
||||
msg->length = crt->inputdatalength + 2;
|
||||
if (copy_from_user(msg->text, crt->inputdata, crt->inputdatalength))
|
||||
return -EFAULT;
|
||||
|
||||
/* Set up key which is located after the variable length text. */
|
||||
size = zcrypt_type6_crt_key(crt, msg->text + crt->inputdatalength, 1);
|
||||
if (size < 0)
|
||||
return size;
|
||||
size += sizeof(*msg) + crt->inputdatalength; /* total size of msg */
|
||||
|
||||
/* message header, cprbx and f&r */
|
||||
msg->hdr = static_type6_hdrX;
|
||||
msg->hdr.ToCardLen1 = size - sizeof(msg->hdr);
|
||||
msg->hdr.FromCardLen1 = PCIXCC_MAX_ICA_RESPONSE_SIZE - sizeof(msg->hdr);
|
||||
|
||||
msg->cprbx = static_cprbx;
|
||||
msg->cprbx.domain = AP_QID_QUEUE(zdev->ap_dev->qid);
|
||||
msg->cprbx.req_parml = msg->cprbx.rpl_msgbl =
|
||||
size - sizeof(msg->hdr) - sizeof(msg->cprbx);
|
||||
|
||||
msg->fr = (zdev->user_space_type == ZCRYPT_PCIXCC_MCL2) ?
|
||||
static_pkd_fnr_MCL2 : static_pkd_fnr;
|
||||
|
||||
ap_msg->length = size;
|
||||
return 0;
|
||||
}
|
||||
|
||||
/**
|
||||
* Copy results from a type 86 ICA reply message back to user space.
|
||||
*
|
||||
* @zdev: crypto device pointer
|
||||
* @reply: reply AP message.
|
||||
* @data: pointer to user output data
|
||||
* @length: size of user output data
|
||||
*
|
||||
* Returns 0 on success or -EINVAL, -EFAULT, -EAGAIN in case of an error.
|
||||
*/
|
||||
struct type86x_reply {
|
||||
struct type86_hdr hdr;
|
||||
struct type86_fmt2_ext fmt2;
|
||||
struct CPRBX cprbx;
|
||||
unsigned char pad[4]; /* 4 byte function code/rules block ? */
|
||||
unsigned short length;
|
||||
char text[0];
|
||||
} __attribute__((packed));
|
||||
|
||||
static int convert_type86_ica(struct zcrypt_device *zdev,
|
||||
struct ap_message *reply,
|
||||
char __user *outputdata,
|
||||
unsigned int outputdatalength)
|
||||
{
|
||||
static unsigned char static_pad[] = {
|
||||
0x00,0x02,
|
||||
0x1B,0x7B,0x5D,0xB5,0x75,0x01,0x3D,0xFD,
|
||||
0x8D,0xD1,0xC7,0x03,0x2D,0x09,0x23,0x57,
|
||||
0x89,0x49,0xB9,0x3F,0xBB,0x99,0x41,0x5B,
|
||||
0x75,0x21,0x7B,0x9D,0x3B,0x6B,0x51,0x39,
|
||||
0xBB,0x0D,0x35,0xB9,0x89,0x0F,0x93,0xA5,
|
||||
0x0B,0x47,0xF1,0xD3,0xBB,0xCB,0xF1,0x9D,
|
||||
0x23,0x73,0x71,0xFF,0xF3,0xF5,0x45,0xFB,
|
||||
0x61,0x29,0x23,0xFD,0xF1,0x29,0x3F,0x7F,
|
||||
0x17,0xB7,0x1B,0xA9,0x19,0xBD,0x57,0xA9,
|
||||
0xD7,0x95,0xA3,0xCB,0xED,0x1D,0xDB,0x45,
|
||||
0x7D,0x11,0xD1,0x51,0x1B,0xED,0x71,0xE9,
|
||||
0xB1,0xD1,0xAB,0xAB,0x21,0x2B,0x1B,0x9F,
|
||||
0x3B,0x9F,0xF7,0xF7,0xBD,0x63,0xEB,0xAD,
|
||||
0xDF,0xB3,0x6F,0x5B,0xDB,0x8D,0xA9,0x5D,
|
||||
0xE3,0x7D,0x77,0x49,0x47,0xF5,0xA7,0xFD,
|
||||
0xAB,0x2F,0x27,0x35,0x77,0xD3,0x49,0xC9,
|
||||
0x09,0xEB,0xB1,0xF9,0xBF,0x4B,0xCB,0x2B,
|
||||
0xEB,0xEB,0x05,0xFF,0x7D,0xC7,0x91,0x8B,
|
||||
0x09,0x83,0xB9,0xB9,0x69,0x33,0x39,0x6B,
|
||||
0x79,0x75,0x19,0xBF,0xBB,0x07,0x1D,0xBD,
|
||||
0x29,0xBF,0x39,0x95,0x93,0x1D,0x35,0xC7,
|
||||
0xC9,0x4D,0xE5,0x97,0x0B,0x43,0x9B,0xF1,
|
||||
0x16,0x93,0x03,0x1F,0xA5,0xFB,0xDB,0xF3,
|
||||
0x27,0x4F,0x27,0x61,0x05,0x1F,0xB9,0x23,
|
||||
0x2F,0xC3,0x81,0xA9,0x23,0x71,0x55,0x55,
|
||||
0xEB,0xED,0x41,0xE5,0xF3,0x11,0xF1,0x43,
|
||||
0x69,0x03,0xBD,0x0B,0x37,0x0F,0x51,0x8F,
|
||||
0x0B,0xB5,0x89,0x5B,0x67,0xA9,0xD9,0x4F,
|
||||
0x01,0xF9,0x21,0x77,0x37,0x73,0x79,0xC5,
|
||||
0x7F,0x51,0xC1,0xCF,0x97,0xA1,0x75,0xAD,
|
||||
0x35,0x9D,0xD3,0xD3,0xA7,0x9D,0x5D,0x41,
|
||||
0x6F,0x65,0x1B,0xCF,0xA9,0x87,0x91,0x09
|
||||
};
|
||||
struct type86x_reply *msg = reply->message;
|
||||
unsigned short service_rc, service_rs;
|
||||
unsigned int reply_len, pad_len;
|
||||
char *data;
|
||||
|
||||
service_rc = msg->cprbx.ccp_rtcode;
|
||||
if (unlikely(service_rc != 0)) {
|
||||
service_rs = msg->cprbx.ccp_rscode;
|
||||
if (service_rc == 8 && service_rs == 66) {
|
||||
PDEBUG("Bad block format on PCIXCC/CEX2C\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
if (service_rc == 8 && service_rs == 65) {
|
||||
PDEBUG("Probably an even modulus on PCIXCC/CEX2C\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
if (service_rc == 8 && service_rs == 770) {
|
||||
PDEBUG("Invalid key length on PCIXCC/CEX2C\n");
|
||||
zdev->min_mod_size = PCIXCC_MIN_MOD_SIZE_OLD;
|
||||
return -EAGAIN;
|
||||
}
|
||||
if (service_rc == 8 && service_rs == 783) {
|
||||
PDEBUG("Extended bitlengths not enabled on PCIXCC/CEX2C\n");
|
||||
zdev->min_mod_size = PCIXCC_MIN_MOD_SIZE_OLD;
|
||||
return -EAGAIN;
|
||||
}
|
||||
PRINTK("Unknown service rc/rs (PCIXCC/CEX2C): %d/%d\n",
|
||||
service_rc, service_rs);
|
||||
zdev->online = 0;
|
||||
return -EAGAIN; /* repeat the request on a different device. */
|
||||
}
|
||||
data = msg->text;
|
||||
reply_len = msg->length - 2;
|
||||
if (reply_len > outputdatalength)
|
||||
return -EINVAL;
|
||||
/**
|
||||
* For all encipher requests, the length of the ciphertext (reply_len)
|
||||
* will always equal the modulus length. For MEX decipher requests
|
||||
* the output needs to get padded. Minimum pad size is 10.
|
||||
*
|
||||
* Currently, the cases where padding will be added is for:
|
||||
* - PCIXCC_MCL2 using a CRT form token (since PKD didn't support
|
||||
* ZERO-PAD and CRT is only supported for PKD requests)
|
||||
* - PCICC, always
|
||||
*/
|
||||
pad_len = outputdatalength - reply_len;
|
||||
if (pad_len > 0) {
|
||||
if (pad_len < 10)
|
||||
return -EINVAL;
|
||||
/* 'restore' padding left in the PCICC/PCIXCC card. */
|
||||
if (copy_to_user(outputdata, static_pad, pad_len - 1))
|
||||
return -EFAULT;
|
||||
if (put_user(0, outputdata + pad_len - 1))
|
||||
return -EFAULT;
|
||||
}
|
||||
/* Copy the crypto response to user space. */
|
||||
if (copy_to_user(outputdata + pad_len, data, reply_len))
|
||||
return -EFAULT;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int convert_response_ica(struct zcrypt_device *zdev,
|
||||
struct ap_message *reply,
|
||||
char __user *outputdata,
|
||||
unsigned int outputdatalength)
|
||||
{
|
||||
struct type86x_reply *msg = reply->message;
|
||||
|
||||
/* Response type byte is the second byte in the response. */
|
||||
switch (((unsigned char *) reply->message)[1]) {
|
||||
case TYPE82_RSP_CODE:
|
||||
case TYPE88_RSP_CODE:
|
||||
return convert_error(zdev, reply);
|
||||
case TYPE86_RSP_CODE:
|
||||
if (msg->hdr.reply_code)
|
||||
return convert_error(zdev, reply);
|
||||
if (msg->cprbx.cprb_ver_id == 0x02)
|
||||
return convert_type86_ica(zdev, reply,
|
||||
outputdata, outputdatalength);
|
||||
/* no break, incorrect cprb version is an unknown response */
|
||||
default: /* Unknown response type, this should NEVER EVER happen */
|
||||
PRINTK("Unrecognized Message Header: %08x%08x\n",
|
||||
*(unsigned int *) reply->message,
|
||||
*(unsigned int *) (reply->message+4));
|
||||
zdev->online = 0;
|
||||
return -EAGAIN; /* repeat the request on a different device. */
|
||||
}
|
||||
}
|
||||
|
||||
/**
|
||||
* This function is called from the AP bus code after a crypto request
|
||||
* "msg" has finished with the reply message "reply".
|
||||
* It is called from tasklet context.
|
||||
* @ap_dev: pointer to the AP device
|
||||
* @msg: pointer to the AP message
|
||||
* @reply: pointer to the AP reply message
|
||||
*/
|
||||
static void zcrypt_pcixcc_receive(struct ap_device *ap_dev,
|
||||
struct ap_message *msg,
|
||||
struct ap_message *reply)
|
||||
{
|
||||
static struct error_hdr error_reply = {
|
||||
.type = TYPE82_RSP_CODE,
|
||||
.reply_code = REP82_ERROR_MACHINE_FAILURE,
|
||||
};
|
||||
struct type86x_reply *t86r = reply->message;
|
||||
int length;
|
||||
|
||||
/* Copy the reply message to the request message buffer. */
|
||||
if (IS_ERR(reply))
|
||||
memcpy(msg->message, &error_reply, sizeof(error_reply));
|
||||
else if (t86r->hdr.type == TYPE86_RSP_CODE &&
|
||||
t86r->cprbx.cprb_ver_id == 0x02) {
|
||||
length = sizeof(struct type86x_reply) + t86r->length - 2;
|
||||
length = min(PCIXCC_MAX_ICA_RESPONSE_SIZE, length);
|
||||
memcpy(msg->message, reply->message, length);
|
||||
} else
|
||||
memcpy(msg->message, reply->message, sizeof error_reply);
|
||||
complete((struct completion *) msg->private);
|
||||
}
|
||||
|
||||
static atomic_t zcrypt_step = ATOMIC_INIT(0);
|
||||
|
||||
/**
|
||||
* The request distributor calls this function if it picked the PCIXCC/CEX2C
|
||||
* device to handle a modexpo request.
|
||||
* @zdev: pointer to zcrypt_device structure that identifies the
|
||||
* PCIXCC/CEX2C device to the request distributor
|
||||
* @mex: pointer to the modexpo request buffer
|
||||
*/
|
||||
static long zcrypt_pcixcc_modexpo(struct zcrypt_device *zdev,
|
||||
struct ica_rsa_modexpo *mex)
|
||||
{
|
||||
struct ap_message ap_msg;
|
||||
struct completion work;
|
||||
int rc;
|
||||
|
||||
ap_msg.message = (void *) get_zeroed_page(GFP_KERNEL);
|
||||
if (!ap_msg.message)
|
||||
return -ENOMEM;
|
||||
ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
|
||||
atomic_inc_return(&zcrypt_step);
|
||||
ap_msg.private = &work;
|
||||
rc = ICAMEX_msg_to_type6MEX_msgX(zdev, &ap_msg, mex);
|
||||
if (rc)
|
||||
goto out_free;
|
||||
init_completion(&work);
|
||||
ap_queue_message(zdev->ap_dev, &ap_msg);
|
||||
rc = wait_for_completion_interruptible_timeout(
|
||||
&work, PCIXCC_CLEANUP_TIME);
|
||||
if (rc > 0)
|
||||
rc = convert_response_ica(zdev, &ap_msg, mex->outputdata,
|
||||
mex->outputdatalength);
|
||||
else {
|
||||
/* Signal pending or message timed out. */
|
||||
ap_cancel_message(zdev->ap_dev, &ap_msg);
|
||||
if (rc == 0)
|
||||
/* Message timed out. */
|
||||
rc = -ETIME;
|
||||
}
|
||||
out_free:
|
||||
free_page((unsigned long) ap_msg.message);
|
||||
return rc;
|
||||
}
|
||||
|
||||
/**
|
||||
* The request distributor calls this function if it picked the PCIXCC/CEX2C
|
||||
* device to handle a modexpo_crt request.
|
||||
* @zdev: pointer to zcrypt_device structure that identifies the
|
||||
* PCIXCC/CEX2C device to the request distributor
|
||||
* @crt: pointer to the modexpoc_crt request buffer
|
||||
*/
|
||||
static long zcrypt_pcixcc_modexpo_crt(struct zcrypt_device *zdev,
|
||||
struct ica_rsa_modexpo_crt *crt)
|
||||
{
|
||||
struct ap_message ap_msg;
|
||||
struct completion work;
|
||||
int rc;
|
||||
|
||||
ap_msg.message = (void *) get_zeroed_page(GFP_KERNEL);
|
||||
if (!ap_msg.message)
|
||||
return -ENOMEM;
|
||||
ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
|
||||
atomic_inc_return(&zcrypt_step);
|
||||
ap_msg.private = &work;
|
||||
rc = ICACRT_msg_to_type6CRT_msgX(zdev, &ap_msg, crt);
|
||||
if (rc)
|
||||
goto out_free;
|
||||
init_completion(&work);
|
||||
ap_queue_message(zdev->ap_dev, &ap_msg);
|
||||
rc = wait_for_completion_interruptible_timeout(
|
||||
&work, PCIXCC_CLEANUP_TIME);
|
||||
if (rc > 0)
|
||||
rc = convert_response_ica(zdev, &ap_msg, crt->outputdata,
|
||||
crt->outputdatalength);
|
||||
else {
|
||||
/* Signal pending or message timed out. */
|
||||
ap_cancel_message(zdev->ap_dev, &ap_msg);
|
||||
if (rc == 0)
|
||||
/* Message timed out. */
|
||||
rc = -ETIME;
|
||||
}
|
||||
out_free:
|
||||
free_page((unsigned long) ap_msg.message);
|
||||
return rc;
|
||||
}
|
||||
|
||||
/**
|
||||
* The crypto operations for a PCIXCC/CEX2C card.
|
||||
*/
|
||||
static struct zcrypt_ops zcrypt_pcixcc_ops = {
|
||||
.rsa_modexpo = zcrypt_pcixcc_modexpo,
|
||||
.rsa_modexpo_crt = zcrypt_pcixcc_modexpo_crt,
|
||||
};
|
||||
|
||||
/**
|
||||
* Micro-code detection function. Its sends a message to a pcixcc card
|
||||
* to find out the microcode level.
|
||||
* @ap_dev: pointer to the AP device.
|
||||
*/
|
||||
static int zcrypt_pcixcc_mcl(struct ap_device *ap_dev)
|
||||
{
|
||||
static unsigned char msg[] = {
|
||||
0x00,0x06,0x00,0x00,0x00,0x00,0x00,0x00,
|
||||
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
||||
0x00,0x00,0x00,0x58,0x00,0x00,0x00,0x00,
|
||||
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
||||
0x43,0x41,0x00,0x00,0x00,0x00,0x00,0x00,
|
||||
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
||||
0x00,0x00,0x00,0x00,0x50,0x4B,0x00,0x00,
|
||||
0x00,0x00,0x01,0xC4,0x00,0x00,0x00,0x00,
|
||||
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
||||
0x00,0x00,0x07,0x24,0x00,0x00,0x00,0x00,
|
||||
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
||||
0x00,0xDC,0x02,0x00,0x00,0x00,0x54,0x32,
|
||||
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xE8,
|
||||
0x00,0x00,0x00,0x00,0x00,0x00,0x07,0x24,
|
||||
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
||||
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
||||
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
||||
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
||||
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
||||
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
||||
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
||||
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
||||
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
||||
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
||||
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
||||
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
||||
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
||||
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
||||
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
||||
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
||||
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
||||
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
||||
0x00,0x00,0x00,0x04,0x00,0x00,0x00,0x00,
|
||||
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
||||
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
||||
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
||||
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
||||
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
||||
0x00,0x00,0x00,0x00,0x50,0x4B,0x00,0x0A,
|
||||
0x4D,0x52,0x50,0x20,0x20,0x20,0x20,0x20,
|
||||
0x00,0x42,0x00,0x01,0x02,0x03,0x04,0x05,
|
||||
0x06,0x07,0x08,0x09,0x0A,0x0B,0x0C,0x0D,
|
||||
0x0E,0x0F,0x00,0x11,0x22,0x33,0x44,0x55,
|
||||
0x66,0x77,0x88,0x99,0xAA,0xBB,0xCC,0xDD,
|
||||
0xEE,0xFF,0xFF,0xEE,0xDD,0xCC,0xBB,0xAA,
|
||||
0x99,0x88,0x77,0x66,0x55,0x44,0x33,0x22,
|
||||
0x11,0x00,0x01,0x23,0x45,0x67,0x89,0xAB,
|
||||
0xCD,0xEF,0xFE,0xDC,0xBA,0x98,0x76,0x54,
|
||||
0x32,0x10,0x00,0x9A,0x00,0x98,0x00,0x00,
|
||||
0x1E,0x00,0x00,0x94,0x00,0x00,0x00,0x00,
|
||||
0x04,0x00,0x00,0x8C,0x00,0x00,0x00,0x40,
|
||||
0x02,0x00,0x00,0x40,0xBA,0xE8,0x23,0x3C,
|
||||
0x75,0xF3,0x91,0x61,0xD6,0x73,0x39,0xCF,
|
||||
0x7B,0x6D,0x8E,0x61,0x97,0x63,0x9E,0xD9,
|
||||
0x60,0x55,0xD6,0xC7,0xEF,0xF8,0x1E,0x63,
|
||||
0x95,0x17,0xCC,0x28,0x45,0x60,0x11,0xC5,
|
||||
0xC4,0x4E,0x66,0xC6,0xE6,0xC3,0xDE,0x8A,
|
||||
0x19,0x30,0xCF,0x0E,0xD7,0xAA,0xDB,0x01,
|
||||
0xD8,0x00,0xBB,0x8F,0x39,0x9F,0x64,0x28,
|
||||
0xF5,0x7A,0x77,0x49,0xCC,0x6B,0xA3,0x91,
|
||||
0x97,0x70,0xE7,0x60,0x1E,0x39,0xE1,0xE5,
|
||||
0x33,0xE1,0x15,0x63,0x69,0x08,0x80,0x4C,
|
||||
0x67,0xC4,0x41,0x8F,0x48,0xDF,0x26,0x98,
|
||||
0xF1,0xD5,0x8D,0x88,0xD9,0x6A,0xA4,0x96,
|
||||
0xC5,0x84,0xD9,0x30,0x49,0x67,0x7D,0x19,
|
||||
0xB1,0xB3,0x45,0x4D,0xB2,0x53,0x9A,0x47,
|
||||
0x3C,0x7C,0x55,0xBF,0xCC,0x85,0x00,0x36,
|
||||
0xF1,0x3D,0x93,0x53
|
||||
};
|
||||
unsigned long long psmid;
|
||||
struct CPRBX *cprbx;
|
||||
char *reply;
|
||||
int rc, i;
|
||||
|
||||
reply = (void *) get_zeroed_page(GFP_KERNEL);
|
||||
if (!reply)
|
||||
return -ENOMEM;
|
||||
|
||||
rc = ap_send(ap_dev->qid, 0x0102030405060708ULL, msg, sizeof(msg));
|
||||
if (rc)
|
||||
goto out_free;
|
||||
|
||||
/* Wait for the test message to complete. */
|
||||
for (i = 0; i < 6; i++) {
|
||||
mdelay(300);
|
||||
rc = ap_recv(ap_dev->qid, &psmid, reply, 4096);
|
||||
if (rc == 0 && psmid == 0x0102030405060708ULL)
|
||||
break;
|
||||
}
|
||||
|
||||
if (i >= 6) {
|
||||
/* Got no answer. */
|
||||
rc = -ENODEV;
|
||||
goto out_free;
|
||||
}
|
||||
|
||||
cprbx = (struct CPRBX *) (reply + 48);
|
||||
if (cprbx->ccp_rtcode == 8 && cprbx->ccp_rscode == 33)
|
||||
rc = ZCRYPT_PCIXCC_MCL2;
|
||||
else
|
||||
rc = ZCRYPT_PCIXCC_MCL3;
|
||||
out_free:
|
||||
free_page((unsigned long) reply);
|
||||
return rc;
|
||||
}
|
||||
|
||||
/**
|
||||
* Probe function for PCIXCC/CEX2C cards. It always accepts the AP device
|
||||
* since the bus_match already checked the hardware type. The PCIXCC
|
||||
* cards come in two flavours: micro code level 2 and micro code level 3.
|
||||
* This is checked by sending a test message to the device.
|
||||
* @ap_dev: pointer to the AP device.
|
||||
*/
|
||||
static int zcrypt_pcixcc_probe(struct ap_device *ap_dev)
|
||||
{
|
||||
struct zcrypt_device *zdev;
|
||||
int rc;
|
||||
|
||||
zdev = zcrypt_device_alloc(PCIXCC_MAX_RESPONSE_SIZE);
|
||||
if (!zdev)
|
||||
return -ENOMEM;
|
||||
zdev->ap_dev = ap_dev;
|
||||
zdev->ops = &zcrypt_pcixcc_ops;
|
||||
zdev->online = 1;
|
||||
if (ap_dev->device_type == AP_DEVICE_TYPE_PCIXCC) {
|
||||
rc = zcrypt_pcixcc_mcl(ap_dev);
|
||||
if (rc < 0) {
|
||||
zcrypt_device_free(zdev);
|
||||
return rc;
|
||||
}
|
||||
zdev->user_space_type = rc;
|
||||
if (rc == ZCRYPT_PCIXCC_MCL2) {
|
||||
zdev->type_string = "PCIXCC_MCL2";
|
||||
zdev->speed_rating = PCIXCC_MCL2_SPEED_RATING;
|
||||
zdev->min_mod_size = PCIXCC_MIN_MOD_SIZE_OLD;
|
||||
zdev->max_mod_size = PCIXCC_MAX_MOD_SIZE;
|
||||
} else {
|
||||
zdev->type_string = "PCIXCC_MCL3";
|
||||
zdev->speed_rating = PCIXCC_MCL3_SPEED_RATING;
|
||||
zdev->min_mod_size = PCIXCC_MIN_MOD_SIZE;
|
||||
zdev->max_mod_size = PCIXCC_MAX_MOD_SIZE;
|
||||
}
|
||||
} else {
|
||||
zdev->user_space_type = ZCRYPT_CEX2C;
|
||||
zdev->type_string = "CEX2C";
|
||||
zdev->speed_rating = CEX2C_SPEED_RATING;
|
||||
zdev->min_mod_size = PCIXCC_MIN_MOD_SIZE;
|
||||
zdev->max_mod_size = PCIXCC_MAX_MOD_SIZE;
|
||||
}
|
||||
ap_dev->reply = &zdev->reply;
|
||||
ap_dev->private = zdev;
|
||||
rc = zcrypt_device_register(zdev);
|
||||
if (rc)
|
||||
goto out_free;
|
||||
return 0;
|
||||
|
||||
out_free:
|
||||
ap_dev->private = NULL;
|
||||
zcrypt_device_free(zdev);
|
||||
return rc;
|
||||
}
|
||||
|
||||
/**
|
||||
* This is called to remove the extended PCIXCC/CEX2C driver information
|
||||
* if an AP device is removed.
|
||||
*/
|
||||
static void zcrypt_pcixcc_remove(struct ap_device *ap_dev)
|
||||
{
|
||||
struct zcrypt_device *zdev = ap_dev->private;
|
||||
|
||||
zcrypt_device_unregister(zdev);
|
||||
}
|
||||
|
||||
int __init zcrypt_pcixcc_init(void)
|
||||
{
|
||||
return ap_driver_register(&zcrypt_pcixcc_driver, THIS_MODULE, "pcixcc");
|
||||
}
|
||||
|
||||
void zcrypt_pcixcc_exit(void)
|
||||
{
|
||||
ap_driver_unregister(&zcrypt_pcixcc_driver);
|
||||
}
|
||||
|
||||
#ifndef CONFIG_ZCRYPT_MONOLITHIC
|
||||
module_init(zcrypt_pcixcc_init);
|
||||
module_exit(zcrypt_pcixcc_exit);
|
||||
#endif
|
79
drivers/s390/crypto/zcrypt_pcixcc.h
Normal file
79
drivers/s390/crypto/zcrypt_pcixcc.h
Normal file
|
@ -0,0 +1,79 @@
|
|||
/*
|
||||
* linux/drivers/s390/crypto/zcrypt_pcixcc.h
|
||||
*
|
||||
* zcrypt 2.0.0
|
||||
*
|
||||
* Copyright (C) 2001, 2006 IBM Corporation
|
||||
* 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_PCIXCC_H_
|
||||
#define _ZCRYPT_PCIXCC_H_
|
||||
|
||||
/**
|
||||
* CPRBX
|
||||
* Note that all shorts and ints are big-endian.
|
||||
* All pointer fields are 16 bytes long, and mean nothing.
|
||||
*
|
||||
* A request CPRB is followed by a request_parameter_block.
|
||||
*
|
||||
* The request (or reply) parameter block is organized thus:
|
||||
* function code
|
||||
* VUD block
|
||||
* key block
|
||||
*/
|
||||
struct CPRBX {
|
||||
unsigned short cprb_len; /* CPRB length 220 */
|
||||
unsigned char cprb_ver_id; /* CPRB version id. 0x02 */
|
||||
unsigned char pad_000[3]; /* Alignment pad bytes */
|
||||
unsigned char func_id[2]; /* function id 0x5432 */
|
||||
unsigned char cprb_flags[4]; /* Flags */
|
||||
unsigned int req_parml; /* request parameter buffer len */
|
||||
unsigned int req_datal; /* request data buffer */
|
||||
unsigned int rpl_msgbl; /* reply message block length */
|
||||
unsigned int rpld_parml; /* replied parameter block len */
|
||||
unsigned int rpl_datal; /* reply data block len */
|
||||
unsigned int rpld_datal; /* replied data block len */
|
||||
unsigned int req_extbl; /* request extension block len */
|
||||
unsigned char pad_001[4]; /* reserved */
|
||||
unsigned int rpld_extbl; /* replied extension block len */
|
||||
unsigned char req_parmb[16]; /* request parm block 'address' */
|
||||
unsigned char req_datab[16]; /* request data block 'address' */
|
||||
unsigned char rpl_parmb[16]; /* reply parm block 'address' */
|
||||
unsigned char rpl_datab[16]; /* reply data block 'address' */
|
||||
unsigned char req_extb[16]; /* request extension block 'addr'*/
|
||||
unsigned char rpl_extb[16]; /* reply extension block 'addres'*/
|
||||
unsigned short ccp_rtcode; /* server return code */
|
||||
unsigned short ccp_rscode; /* server reason code */
|
||||
unsigned int mac_data_len; /* Mac Data Length */
|
||||
unsigned char logon_id[8]; /* Logon Identifier */
|
||||
unsigned char mac_value[8]; /* Mac Value */
|
||||
unsigned char mac_content_flgs;/* Mac content flag byte */
|
||||
unsigned char pad_002; /* Alignment */
|
||||
unsigned short domain; /* Domain */
|
||||
unsigned char pad_003[12]; /* Domain masks */
|
||||
unsigned char pad_004[36]; /* reserved */
|
||||
} __attribute__((packed));
|
||||
|
||||
int zcrypt_pcixcc_init(void);
|
||||
void zcrypt_pcixcc_exit(void);
|
||||
|
||||
#endif /* _ZCRYPT_PCIXCC_H_ */
|
Loading…
Reference in a new issue