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s390/zcrypt: remove support for PCICC and PCICA cards 

Remove the code for really old crypt cards, PCICC and PCICA.
These cards have been out of service for several years.

Reviewd-by: Ingo Tuchscherer <ingo.tuchscherer@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Martin Schwidefsky 2015-09-14 17:28:26 +02:00
parent 3f3007afda
commit b96a9e5140
6 changed files with 2 additions and 1445 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/s390/crypto/Makefile
View File

@ -3,6 +3,6 @@
#
ap-objs := ap_bus.o
obj-$(CONFIG_ZCRYPT) += ap.o zcrypt_api.o zcrypt_pcicc.o zcrypt_pcixcc.o
obj-$(CONFIG_ZCRYPT) += zcrypt_pcica.o zcrypt_cex2a.o zcrypt_cex4.o
obj-$(CONFIG_ZCRYPT) += ap.o zcrypt_api.o zcrypt_pcixcc.o
obj-$(CONFIG_ZCRYPT) += zcrypt_cex2a.o zcrypt_cex4.o
obj-$(CONFIG_ZCRYPT) += zcrypt_msgtype6.o zcrypt_msgtype50.o

103
drivers/s390/crypto/ap_bus.c
View File

@ -1590,103 +1590,6 @@ static int ap_select_domain(void)
return -ENODEV;
}
/**
* ap_probe_device_type(): Find the device type of an AP.
* @ap_dev: pointer to the AP device.
*
* Find the device type if query queue returned a device type of 0.
*/
static int ap_probe_device_type(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,
0x01,0x00,0x43,0x43,0x41,0x2d,0x41,0x50,
0x50,0x4c,0x20,0x20,0x20,0x01,0x01,0x01,
0x00,0x00,0x00,0x00,0x50,0x4b,0x00,0x00,
0x00,0x00,0x01,0x1c,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x05,0xb8,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x70,0x00,0x41,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x54,0x32,0x01,0x00,0xa0,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0xb8,0x05,0x00,0x00,
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,
0x00,0x00,0x0a,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
0x00,0x00,0x00,0x00,0x00,0x00,0x08,0x00,
0x49,0x43,0x53,0x46,0x20,0x20,0x20,0x20,
0x50,0x4b,0x0a,0x00,0x50,0x4b,0x43,0x53,
0x2d,0x31,0x2e,0x32,0x37,0x00,0x11,0x22,
0x33,0x44,0x55,0x66,0x77,0x88,0x99,0x00,
0x11,0x22,0x33,0x44,0x55,0x66,0x77,0x88,
0x99,0x00,0x11,0x22,0x33,0x44,0x55,0x66,
0x77,0x88,0x99,0x00,0x11,0x22,0x33,0x44,
0x55,0x66,0x77,0x88,0x99,0x00,0x11,0x22,
0x33,0x44,0x55,0x66,0x77,0x88,0x99,0x00,
0x11,0x22,0x33,0x5d,0x00,0x5b,0x00,0x77,
0x88,0x1e,0x00,0x00,0x57,0x00,0x00,0x00,
0x00,0x04,0x00,0x00,0x4f,0x00,0x00,0x00,
0x03,0x02,0x00,0x00,0x40,0x01,0x00,0x01,
0xce,0x02,0x68,0x2d,0x5f,0xa9,0xde,0x0c,
0xf6,0xd2,0x7b,0x58,0x4b,0xf9,0x28,0x68,
0x3d,0xb4,0xf4,0xef,0x78,0xd5,0xbe,0x66,
0x63,0x42,0xef,0xf8,0xfd,0xa4,0xf8,0xb0,
0x8e,0x29,0xc2,0xc9,0x2e,0xd8,0x45,0xb8,
0x53,0x8c,0x6f,0x4e,0x72,0x8f,0x6c,0x04,
0x9c,0x88,0xfc,0x1e,0xc5,0x83,0x55,0x57,
0xf7,0xdd,0xfd,0x4f,0x11,0x36,0x95,0x5d,
};
struct ap_queue_status status;
unsigned long long psmid;
char *reply;
int rc, i;
reply = (void *) get_zeroed_page(GFP_KERNEL);
if (!reply) {
rc = -ENOMEM;
goto out;
}
status = __ap_send(ap_dev->qid, 0x0102030405060708ULL,
msg, sizeof(msg), 0);
if (status.response_code != AP_RESPONSE_NORMAL) {
rc = -ENODEV;
goto out_free;
}
/* Wait for the test message to complete. */
for (i = 0; i < 6; i++) {
msleep(300);
status = __ap_recv(ap_dev->qid, &psmid, reply, 4096);
if (status.response_code == AP_RESPONSE_NORMAL &&
psmid == 0x0102030405060708ULL)
break;
}
if (i < 6) {
/* Got an answer. */
if (reply[0] == 0x00 && reply[1] == 0x86)
ap_dev->device_type = AP_DEVICE_TYPE_PCICC;
else
ap_dev->device_type = AP_DEVICE_TYPE_PCICA;
rc = 0;
} else
rc = -ENODEV;
out_free:
free_page((unsigned long) reply);
out:
return rc;
}
/**
* __ap_scan_bus(): Scan the AP bus.
* @dev: Pointer to device
@ -1750,12 +1653,6 @@ static void ap_scan_bus(struct work_struct *unused)
INIT_LIST_HEAD(&ap_dev->list);
setup_timer(&ap_dev->timeout, ap_request_timeout,
(unsigned long) ap_dev);
if (ap_dev->device_type == 0)
/* device type probing for old cards */
if (ap_probe_device_type(ap_dev)) {
kfree(ap_dev);
continue;
}
ap_dev->device.bus = &ap_bus_type;
ap_dev->device.parent = ap_root_device;

422
drivers/s390/crypto/zcrypt_pcica.c
View File

@ -1,422 +0,0 @@
/*
* zcrypt 2.1.0
*
* Copyright IBM Corp. 2001, 2006
* Author(s): Robert Burroughs
* Eric Rossman (edrossma@us.ibm.com)
*
* Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com)
* Major cleanup & driver split: Martin Schwidefsky <schwidefsky@de.ibm.com>
* 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.
*/
#define KMSG_COMPONENT "zcrypt"
#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/atomic.h>
#include <asm/uaccess.h>
#include "ap_bus.h"
#include "zcrypt_api.h"
#include "zcrypt_error.h"
#include "zcrypt_pcica.h"
#define PCICA_MIN_MOD_SIZE 1 /* 8 bits */
#define PCICA_MAX_MOD_SIZE 256 /* 2048 bits */
#define PCICA_SPEED_RATING 2800
#define PCICA_MAX_MESSAGE_SIZE 0x3a0 /* sizeof(struct type4_lcr) */
#define PCICA_MAX_RESPONSE_SIZE 0x110 /* max outputdatalength + type80_hdr */
#define PCICA_CLEANUP_TIME (15*HZ)
static struct ap_device_id zcrypt_pcica_ids[] = {
{ AP_DEVICE(AP_DEVICE_TYPE_PCICA) },
{ /* end of list */ },
};
MODULE_DEVICE_TABLE(ap, zcrypt_pcica_ids);
MODULE_AUTHOR("IBM Corporation");
MODULE_DESCRIPTION("PCICA Cryptographic Coprocessor device driver, "
"Copyright IBM Corp. 2001, 2006");
MODULE_LICENSE("GPL");
static int zcrypt_pcica_probe(struct ap_device *ap_dev);
static void zcrypt_pcica_remove(struct ap_device *ap_dev);
static void zcrypt_pcica_receive(struct ap_device *, struct ap_message *,
struct ap_message *);
static struct ap_driver zcrypt_pcica_driver = {
.probe = zcrypt_pcica_probe,
.remove = zcrypt_pcica_remove,
.ids = zcrypt_pcica_ids,
.request_timeout = PCICA_CLEANUP_TIME,
};
/**
* Convert a ICAMEX message to a type4 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_type4MEX_msg(struct zcrypt_device *zdev,
struct ap_message *ap_msg,
struct ica_rsa_modexpo *mex)
{
unsigned char *modulus, *exponent, *message;
int mod_len;
mod_len = mex->inputdatalength;
if (mod_len <= 128) {
struct type4_sme *sme = ap_msg->message;
memset(sme, 0, sizeof(*sme));
ap_msg->length = sizeof(*sme);
sme->header.msg_fmt = TYPE4_SME_FMT;
sme->header.msg_len = sizeof(*sme);
sme->header.msg_type_code = TYPE4_TYPE_CODE;
sme->header.request_code = TYPE4_REQU_CODE;
modulus = sme->modulus + sizeof(sme->modulus) - mod_len;
exponent = sme->exponent + sizeof(sme->exponent) - mod_len;
message = sme->message + sizeof(sme->message) - mod_len;
} else {
struct type4_lme *lme = ap_msg->message;
memset(lme, 0, sizeof(*lme));
ap_msg->length = sizeof(*lme);
lme->header.msg_fmt = TYPE4_LME_FMT;
lme->header.msg_len = sizeof(*lme);
lme->header.msg_type_code = TYPE4_TYPE_CODE;
lme->header.request_code = TYPE4_REQU_CODE;
modulus = lme->modulus + sizeof(lme->modulus) - mod_len;
exponent = lme->exponent + sizeof(lme->exponent) - mod_len;
message = lme->message + sizeof(lme->message) - mod_len;
}
if (copy_from_user(modulus, mex->n_modulus, mod_len) ||
copy_from_user(exponent, mex->b_key, mod_len) ||
copy_from_user(message, mex->inputdata, mod_len))
return -EFAULT;
return 0;
}
/**
* Convert a ICACRT message to a type4 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_type4CRT_msg(struct zcrypt_device *zdev,
struct ap_message *ap_msg,
struct ica_rsa_modexpo_crt *crt)
{
unsigned char *p, *q, *dp, *dq, *u, *inp;
int mod_len, short_len, long_len;
mod_len = crt->inputdatalength;
short_len = (mod_len + 1) / 2;
long_len = mod_len / 2 + 8;
if (mod_len <= 128) {
struct type4_scr *scr = ap_msg->message;
memset(scr, 0, sizeof(*scr));
ap_msg->length = sizeof(*scr);
scr->header.msg_type_code = TYPE4_TYPE_CODE;
scr->header.request_code = TYPE4_REQU_CODE;
scr->header.msg_fmt = TYPE4_SCR_FMT;
scr->header.msg_len = sizeof(*scr);
p = scr->p + sizeof(scr->p) - long_len;
q = scr->q + sizeof(scr->q) - short_len;
dp = scr->dp + sizeof(scr->dp) - long_len;
dq = scr->dq + sizeof(scr->dq) - short_len;
u = scr->u + sizeof(scr->u) - long_len;
inp = scr->message + sizeof(scr->message) - mod_len;
} else {
struct type4_lcr *lcr = ap_msg->message;
memset(lcr, 0, sizeof(*lcr));
ap_msg->length = sizeof(*lcr);
lcr->header.msg_type_code = TYPE4_TYPE_CODE;
lcr->header.request_code = TYPE4_REQU_CODE;
lcr->header.msg_fmt = TYPE4_LCR_FMT;
lcr->header.msg_len = sizeof(*lcr);
p = lcr->p + sizeof(lcr->p) - long_len;
q = lcr->q + sizeof(lcr->q) - short_len;
dp = lcr->dp + sizeof(lcr->dp) - long_len;
dq = lcr->dq + sizeof(lcr->dq) - short_len;
u = lcr->u + sizeof(lcr->u) - long_len;
inp = lcr->message + sizeof(lcr->message) - mod_len;
}
if (copy_from_user(p, crt->np_prime, long_len) ||
copy_from_user(q, crt->nq_prime, short_len) ||
copy_from_user(dp, crt->bp_key, long_len) ||
copy_from_user(dq, crt->bq_key, short_len) ||
copy_from_user(u, crt->u_mult_inv, long_len) ||
copy_from_user(inp, crt->inputdata, mod_len))
return -EFAULT;
return 0;
}
/**
* Copy results from a type 84 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 -EFAULT.
*/
static int convert_type84(struct zcrypt_device *zdev,
struct ap_message *reply,
char __user *outputdata,
unsigned int outputdatalength)
{
struct type84_hdr *t84h = reply->message;
char *data;
if (t84h->len < sizeof(*t84h) + outputdatalength) {
/* The result is too short, the PCICA card may not do that.. */
zdev->online = 0;
pr_err("Cryptographic device %x failed and was set offline\n",
zdev->ap_dev->qid);
ZCRYPT_DBF_DEV(DBF_ERR, zdev, "dev%04xo%drc%d",
zdev->ap_dev->qid, zdev->online, t84h->code);
return -EAGAIN; /* repeat the request on a different device. */
}
BUG_ON(t84h->len > PCICA_MAX_RESPONSE_SIZE);
data = reply->message + t84h->len - outputdatalength;
if (copy_to_user(outputdata, data, outputdatalength))
return -EFAULT;
return 0;
}
static int convert_response(struct zcrypt_device *zdev,
struct ap_message *reply,
char __user *outputdata,
unsigned int outputdatalength)
{
/* 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 TYPE84_RSP_CODE:
return convert_type84(zdev, reply,
outputdata, outputdatalength);
default: /* Unknown response type, this should NEVER EVER happen */
zdev->online = 0;
pr_err("Cryptographic device %x failed and was set offline\n",
zdev->ap_dev->qid);
ZCRYPT_DBF_DEV(DBF_ERR, zdev, "dev%04xo%dfail",
zdev->ap_dev->qid, zdev->online);
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_pcica_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 type84_hdr *t84h;
int length;
/* Copy the reply message to the request message buffer. */
if (!reply)
goto out; /* ap_msg->rc indicates the error */
t84h = reply->message;
if (t84h->code == TYPE84_RSP_CODE) {
length = min(PCICA_MAX_RESPONSE_SIZE, (int) t84h->len);
memcpy(msg->message, reply->message, length);
} else
memcpy(msg->message, reply->message, sizeof error_reply);
out:
complete((struct completion *) msg->private);
}
static atomic_t zcrypt_step = ATOMIC_INIT(0);
/**
* The request distributor calls this function if it picked the PCICA
* device to handle a modexpo request.
* @zdev: pointer to zcrypt_device structure that identifies the
* PCICA device to the request distributor
* @mex: pointer to the modexpo request buffer
*/
static long zcrypt_pcica_modexpo(struct zcrypt_device *zdev,
struct ica_rsa_modexpo *mex)
{
struct ap_message ap_msg;
struct completion work;
int rc;
ap_init_message(&ap_msg);
ap_msg.message = kmalloc(PCICA_MAX_MESSAGE_SIZE, GFP_KERNEL);
if (!ap_msg.message)
return -ENOMEM;
ap_msg.receive = zcrypt_pcica_receive;
ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
atomic_inc_return(&zcrypt_step);
ap_msg.private = &work;
rc = ICAMEX_msg_to_type4MEX_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(&work);
if (rc == 0) {
rc = ap_msg.rc;
if (rc == 0)
rc = convert_response(zdev, &ap_msg, mex->outputdata,
mex->outputdatalength);
} else
/* Signal pending. */
ap_cancel_message(zdev->ap_dev, &ap_msg);
out_free:
kfree(ap_msg.message);
return rc;
}
/**
* The request distributor calls this function if it picked the PCICA
* device to handle a modexpo_crt request.
* @zdev: pointer to zcrypt_device structure that identifies the
* PCICA device to the request distributor
* @crt: pointer to the modexpoc_crt request buffer
*/
static long zcrypt_pcica_modexpo_crt(struct zcrypt_device *zdev,
struct ica_rsa_modexpo_crt *crt)
{
struct ap_message ap_msg;
struct completion work;
int rc;
ap_init_message(&ap_msg);
ap_msg.message = kmalloc(PCICA_MAX_MESSAGE_SIZE, GFP_KERNEL);
if (!ap_msg.message)
return -ENOMEM;
ap_msg.receive = zcrypt_pcica_receive;
ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
atomic_inc_return(&zcrypt_step);
ap_msg.private = &work;
rc = ICACRT_msg_to_type4CRT_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(&work);
if (rc == 0) {
rc = ap_msg.rc;
if (rc == 0)
rc = convert_response(zdev, &ap_msg, crt->outputdata,
crt->outputdatalength);
} else
/* Signal pending. */
ap_cancel_message(zdev->ap_dev, &ap_msg);
out_free:
kfree(ap_msg.message);
return rc;
}
/**
* The crypto operations for a PCICA card.
*/
static struct zcrypt_ops zcrypt_pcica_ops = {
.rsa_modexpo = zcrypt_pcica_modexpo,
.rsa_modexpo_crt = zcrypt_pcica_modexpo_crt,
};
/**
* Probe function for PCICA 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_pcica_probe(struct ap_device *ap_dev)
{
struct zcrypt_device *zdev;
int rc;
zdev = zcrypt_device_alloc(PCICA_MAX_RESPONSE_SIZE);
if (!zdev)
return -ENOMEM;
zdev->ap_dev = ap_dev;
zdev->ops = &zcrypt_pcica_ops;
zdev->online = 1;
zdev->user_space_type = ZCRYPT_PCICA;
zdev->type_string = "PCICA";
zdev->min_mod_size = PCICA_MIN_MOD_SIZE;
zdev->max_mod_size = PCICA_MAX_MOD_SIZE;
zdev->speed_rating = PCICA_SPEED_RATING;
zdev->max_exp_bit_length = PCICA_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 PCICA driver information
* if an AP device is removed.
*/
static void zcrypt_pcica_remove(struct ap_device *ap_dev)
{
struct zcrypt_device *zdev = ap_dev->private;
zcrypt_device_unregister(zdev);
}
int __init zcrypt_pcica_init(void)
{
return ap_driver_register(&zcrypt_pcica_driver, THIS_MODULE, "pcica");
}
void zcrypt_pcica_exit(void)
{
ap_driver_unregister(&zcrypt_pcica_driver);
}
module_init(zcrypt_pcica_init);
module_exit(zcrypt_pcica_exit);

115
drivers/s390/crypto/zcrypt_pcica.h
View File

@ -1,115 +0,0 @@
/*
* zcrypt 2.1.0
*
* Copyright IBM Corp. 2001, 2006
* Author(s): Robert Burroughs
* Eric Rossman (edrossma@us.ibm.com)
*
* Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com)
* Major cleanup & driver split: Martin Schwidefsky <schwidefsky@de.ibm.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef _ZCRYPT_PCICA_H_
#define _ZCRYPT_PCICA_H_
/**
* The type 4 message family is associated with a PCICA card.
*
* The four members of the family are described below.
*
* Note that all unsigned char arrays are right-justified and left-padded
* with zeroes.
*
* Note that all reserved fields must be zeroes.
*/
struct type4_hdr {
unsigned char reserved1;
unsigned char msg_type_code; /* 0x04 */
unsigned short msg_len;
unsigned char request_code; /* 0x40 */
unsigned char msg_fmt;
unsigned short reserved2;
} __attribute__((packed));
#define TYPE4_TYPE_CODE 0x04
#define TYPE4_REQU_CODE 0x40
#define TYPE4_SME_FMT 0x00
#define TYPE4_LME_FMT 0x10
#define TYPE4_SCR_FMT 0x40
#define TYPE4_LCR_FMT 0x50
/* Mod-Exp, with a small modulus */
struct type4_sme {
struct type4_hdr header;
unsigned char message[128];
unsigned char exponent[128];
unsigned char modulus[128];
} __attribute__((packed));
/* Mod-Exp, with a large modulus */
struct type4_lme {
struct type4_hdr header;
unsigned char message[256];
unsigned char exponent[256];
unsigned char modulus[256];
} __attribute__((packed));
/* CRT, with a small modulus */
struct type4_scr {
struct type4_hdr header;
unsigned char message[128];
unsigned char dp[72];
unsigned char dq[64];
unsigned char p[72];
unsigned char q[64];
unsigned char u[72];
} __attribute__((packed));
/* CRT, with a large modulus */
struct type4_lcr {
struct type4_hdr header;
unsigned char message[256];
unsigned char dp[136];
unsigned char dq[128];
unsigned char p[136];
unsigned char q[128];
unsigned char u[136];
} __attribute__((packed));
/**
* The type 84 response family is associated with a PCICA card.
*
* Note that all unsigned char arrays are right-justified and left-padded
* with zeroes.
*
* Note that all reserved fields must be zeroes.
*/
struct type84_hdr {
unsigned char reserved1;
unsigned char code;
unsigned short len;
unsigned char reserved2[4];
} __attribute__((packed));
#define TYPE84_RSP_CODE 0x84
int zcrypt_pcica_init(void);
void zcrypt_pcica_exit(void);
#endif /* _ZCRYPT_PCICA_H_ */

629
drivers/s390/crypto/zcrypt_pcicc.c
View File

@ -1,629 +0,0 @@
/*
* zcrypt 2.1.0
*
* Copyright IBM Corp. 2001, 2006
* Author(s): Robert Burroughs
* Eric Rossman (edrossma@us.ibm.com)
*
* Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com)
* Major cleanup & driver split: Martin Schwidefsky <schwidefsky@de.ibm.com>
* 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.
*/
#define KMSG_COMPONENT "zcrypt"
#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
#include <linux/module.h>
#include <linux/init.h>
#include <linux/gfp.h>
#include <linux/err.h>
#include <linux/atomic.h>
#include <asm/uaccess.h>
#include "ap_bus.h"
#include "zcrypt_api.h"
#include "zcrypt_error.h"
#include "zcrypt_pcicc.h"
#include "zcrypt_cca_key.h"
#define PCICC_MIN_MOD_SIZE 64 /* 512 bits */
#define PCICC_MAX_MOD_SIZE_OLD 128 /* 1024 bits */
#define PCICC_MAX_MOD_SIZE 256 /* 2048 bits */
/*
* PCICC cards need a speed rating of 0. This keeps them at the end of
* the zcrypt device list (see zcrypt_api.c). PCICC cards are only
* used if no other cards are present because they are slow and can only
* cope with PKCS12 padded requests. The logic is queer. PKCS11 padded
* requests are rejected. The modexpo function encrypts PKCS12 padded data
* and decrypts any non-PKCS12 padded data (except PKCS11) in the assumption
* that it's encrypted PKCS12 data. The modexpo_crt function always decrypts
* the data in the assumption that its PKCS12 encrypted data.
*/
#define PCICC_SPEED_RATING 0
#define PCICC_MAX_MESSAGE_SIZE 0x710 /* max size type6 v1 crt message */
#define PCICC_MAX_RESPONSE_SIZE 0x710 /* max size type86 v1 reply */
#define PCICC_CLEANUP_TIME (15*HZ)
static struct ap_device_id zcrypt_pcicc_ids[] = {
{ AP_DEVICE(AP_DEVICE_TYPE_PCICC) },
{ /* end of list */ },
};
MODULE_DEVICE_TABLE(ap, zcrypt_pcicc_ids);
MODULE_AUTHOR("IBM Corporation");
MODULE_DESCRIPTION("PCICC Cryptographic Coprocessor device driver, "
"Copyright IBM Corp. 2001, 2006");
MODULE_LICENSE("GPL");
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,
.ids = zcrypt_pcicc_ids,
.request_timeout = PCICC_CLEANUP_TIME,
};
/**
* 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 = cpu_to_le16(0x0070),
.cprb_ver_id = 0x41,
.func_id = {0x54,0x32},
.checkpoint_flag= 0x01,
.svr_namel = 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 = 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 = 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)
return -EINVAL;
if (service_rc == 8 && service_rs == 65)
return -EINVAL;
if (service_rc == 8 && service_rs == 770) {
zdev->max_mod_size = PCICC_MAX_MOD_SIZE_OLD;
return -EAGAIN;
}
if (service_rc == 8 && service_rs == 783) {
zdev->max_mod_size = PCICC_MAX_MOD_SIZE_OLD;
return -EAGAIN;
}
if (service_rc == 8 && service_rs == 72)
return -EINVAL;
zdev->online = 0;
pr_err("Cryptographic device %x failed and was set offline\n",
zdev->ap_dev->qid);
ZCRYPT_DBF_DEV(DBF_ERR, zdev, "dev%04xo%drc%d",
zdev->ap_dev->qid, zdev->online,
msg->hdr.reply_code);
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 */
zdev->online = 0;
pr_err("Cryptographic device %x failed and was set offline\n",
zdev->ap_dev->qid);
ZCRYPT_DBF_DEV(DBF_ERR, zdev, "dev%04xo%dfail",
zdev->ap_dev->qid, zdev->online);
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;
int length;
/* Copy the reply message to the request message buffer. */
if (!reply)
goto out; /* ap_msg->rc indicates the error */
t86r = reply->message;
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);
out:
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_init_message(&ap_msg);
ap_msg.message = (void *) get_zeroed_page(GFP_KERNEL);
if (!ap_msg.message)
return -ENOMEM;
ap_msg.receive = zcrypt_pcicc_receive;
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(&work);
if (rc == 0) {
rc = ap_msg.rc;
if (rc == 0)
rc = convert_response(zdev, &ap_msg, mex->outputdata,
mex->outputdatalength);
} else
/* Signal pending. */
ap_cancel_message(zdev->ap_dev, &ap_msg);
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_init_message(&ap_msg);
ap_msg.message = (void *) get_zeroed_page(GFP_KERNEL);
if (!ap_msg.message)
return -ENOMEM;
ap_msg.receive = zcrypt_pcicc_receive;
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(&work);
if (rc == 0) {
rc = ap_msg.rc;
if (rc == 0)
rc = convert_response(zdev, &ap_msg, crt->outputdata,
crt->outputdatalength);
} else
/* Signal pending. */
ap_cancel_message(zdev->ap_dev, &ap_msg);
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;
zdev->max_exp_bit_length = PCICC_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 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);
}
module_init(zcrypt_pcicc_init);
module_exit(zcrypt_pcicc_exit);

174
drivers/s390/crypto/zcrypt_pcicc.h
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@ -1,174 +0,0 @@
/*
* zcrypt 2.1.0
*
* Copyright IBM Corp. 2001, 2006
* Author(s): Robert Burroughs
* Eric Rossman (edrossma@us.ibm.com)
*
* Hotplug & misc device support: Jochen Roehrig (roehrig@de.ibm.com)
* Major cleanup & driver split: Martin Schwidefsky <schwidefsky@de.ibm.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifndef _ZCRYPT_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_ */