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提交 5e55a488 编写于 作者: H Holger Dengler 提交者： Martin Schwidefsky
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s390/zcrypt: Separate msgtype implementation from card modules. 

Msgtype implementations are now separated from card specific modules
and can be dynamically registered. Existing msgtype implementations
are restructured in modules.
Signed-off-by: NHolger Dengler <hd@linux.vnet.ibm.com>
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
上级 b26bd941
展开全部 隐藏空白更改
内联 并排
Showing with 1707 addition and 1124 deletion
drivers/s390/crypto/Makefile
浏览文件 @ 5e55a488
......@@ -5,3 +5,4 @@
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
obj-$(CONFIG_ZCRYPT) += zcrypt_msgtype6.o zcrypt_msgtype50.o
drivers/s390/crypto/zcrypt_api.c
浏览文件 @ 5e55a488
/*
* zcrypt 2.1.0
*
* Copyright IBM Corp. 2001, 2006
* Copyright IBM Corp. 2001, 2012
* Author(s): Robert Burroughs
* Eric Rossman (edrossma@us.ibm.com)
* Cornelia Huck <cornelia.huck@de.ibm.com>
......@@ -9,6 +9,7 @@
* 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>
* MSGTYPE restruct: Holger Dengler <hd@linux.vnet.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
......@@ -44,8 +45,8 @@
* Module description.
*/
MODULE_AUTHOR("IBM Corporation");
MODULE_DESCRIPTION("Cryptographic Coprocessor interface, "
"Copyright IBM Corp. 2001, 2006");
MODULE_DESCRIPTION("Cryptographic Coprocessor interface, " \
"Copyright IBM Corp. 2001, 2012");
MODULE_LICENSE("GPL");
static DEFINE_SPINLOCK(zcrypt_device_lock);
......@@ -56,6 +57,9 @@ static atomic_t zcrypt_open_count = ATOMIC_INIT(0);
static int zcrypt_rng_device_add(void);
static void zcrypt_rng_device_remove(void);
static DEFINE_SPINLOCK(zcrypt_ops_list_lock);
static LIST_HEAD(zcrypt_ops_list);
/*
* Device attributes common for all crypto devices.
*/
......@@ -215,6 +219,8 @@ int zcrypt_device_register(struct zcrypt_device *zdev)
{
int rc;
if (!zdev->ops)
return -ENODEV;
rc = sysfs_create_group(&zdev->ap_dev->device.kobj,
&zcrypt_device_attr_group);
if (rc)
......@@ -269,6 +275,67 @@ void zcrypt_device_unregister(struct zcrypt_device *zdev)
}
EXPORT_SYMBOL(zcrypt_device_unregister);
void zcrypt_msgtype_register(struct zcrypt_ops *zops)
{
if (zops->owner) {
spin_lock_bh(&zcrypt_ops_list_lock);
list_add_tail(&zops->list, &zcrypt_ops_list);
spin_unlock_bh(&zcrypt_ops_list_lock);
}
}
EXPORT_SYMBOL(zcrypt_msgtype_register);
void zcrypt_msgtype_unregister(struct zcrypt_ops *zops)
{
spin_lock_bh(&zcrypt_ops_list_lock);
list_del_init(&zops->list);
spin_unlock_bh(&zcrypt_ops_list_lock);
}
EXPORT_SYMBOL(zcrypt_msgtype_unregister);
static inline
struct zcrypt_ops *__ops_lookup(unsigned char *name, int variant)
{
struct zcrypt_ops *zops;
int found = 0;
spin_lock_bh(&zcrypt_ops_list_lock);
list_for_each_entry(zops, &zcrypt_ops_list, list) {
if ((zops->variant == variant) &&
(!strncmp(zops->owner->name, name, MODULE_NAME_LEN))) {
found = 1;
break;
}
}
spin_unlock_bh(&zcrypt_ops_list_lock);
if (!found)
return NULL;
return zops;
}
struct zcrypt_ops *zcrypt_msgtype_request(unsigned char *name, int variant)
{
struct zcrypt_ops *zops = NULL;
zops = __ops_lookup(name, variant);
if (!zops) {
request_module(name);
zops = __ops_lookup(name, variant);
}
if ((!zops) || (!try_module_get(zops->owner)))
return NULL;
return zops;
}
EXPORT_SYMBOL(zcrypt_msgtype_request);
void zcrypt_msgtype_release(struct zcrypt_ops *zops)
{
if (zops)
module_put(zops->owner);
}
EXPORT_SYMBOL(zcrypt_msgtype_release);
/**
* zcrypt_read (): Not supported beyond zcrypt 1.3.1.
*
......
drivers/s390/crypto/zcrypt_api.h
浏览文件 @ 5e55a488
/*
* zcrypt 2.1.0
*
* Copyright IBM Corp. 2001, 2006
* Copyright IBM Corp. 2001, 2012
* Author(s): Robert Burroughs
* Eric Rossman (edrossma@us.ibm.com)
* Cornelia Huck <cornelia.huck@de.ibm.com>
......@@ -9,6 +9,7 @@
* 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>
* MSGTYPE restruct: Holger Dengler <hd@linux.vnet.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
......@@ -87,6 +88,9 @@ struct zcrypt_ops {
struct ica_rsa_modexpo_crt *);
long (*send_cprb)(struct zcrypt_device *, struct ica_xcRB *);
long (*rng)(struct zcrypt_device *, char *);
struct list_head list; /* zcrypt ops list. */
struct module *owner;
int variant;
};
struct zcrypt_device {
......@@ -116,6 +120,10 @@ void zcrypt_device_get(struct zcrypt_device *);
int zcrypt_device_put(struct zcrypt_device *);
int zcrypt_device_register(struct zcrypt_device *);
void zcrypt_device_unregister(struct zcrypt_device *);
void zcrypt_msgtype_register(struct zcrypt_ops *);
void zcrypt_msgtype_unregister(struct zcrypt_ops *);
struct zcrypt_ops *zcrypt_msgtype_request(unsigned char *, int);
void zcrypt_msgtype_release(struct zcrypt_ops *);
int zcrypt_api_init(void);
void zcrypt_api_exit(void);
......
drivers/s390/crypto/zcrypt_cex2a.c
浏览文件 @ 5e55a488
/*
* zcrypt 2.1.0
*
* Copyright IBM Corp. 2001, 2006
* Copyright IBM Corp. 2001, 2012
* 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>
* MSGTYPE restruct: Holger Dengler <hd@linux.vnet.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
......@@ -35,6 +36,7 @@
#include "zcrypt_api.h"
#include "zcrypt_error.h"
#include "zcrypt_cex2a.h"
#include "zcrypt_msgtype50.h"
#define CEX2A_MIN_MOD_SIZE 1 /* 8 bits */
#define CEX2A_MAX_MOD_SIZE 256 /* 2048 bits */
......@@ -63,14 +65,12 @@ static struct ap_device_id zcrypt_cex2a_ids[] = {
MODULE_DEVICE_TABLE(ap, zcrypt_cex2a_ids);
MODULE_AUTHOR("IBM Corporation");
MODULE_DESCRIPTION("CEX2A Cryptographic Coprocessor device driver, "
"Copyright IBM Corp. 2001, 2006");
MODULE_DESCRIPTION("CEX2A Cryptographic Coprocessor device driver, " \
"Copyright IBM Corp. 2001, 2012");
MODULE_LICENSE("GPL");
static int zcrypt_cex2a_probe(struct ap_device *ap_dev);
static void zcrypt_cex2a_remove(struct ap_device *ap_dev);
static void zcrypt_cex2a_receive(struct ap_device *, struct ap_message *,
struct ap_message *);
static struct ap_driver zcrypt_cex2a_driver = {
.probe = zcrypt_cex2a_probe,
......@@ -79,344 +79,6 @@ static struct ap_driver zcrypt_cex2a_driver = {
.request_timeout = CEX2A_CLEANUP_TIME,
};
/**
* Convert a ICAMEX message to a type50 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_type50MEX_msg(struct zcrypt_device *zdev,
struct ap_message *ap_msg,
struct ica_rsa_modexpo *mex)
{
unsigned char *mod, *exp, *inp;
int mod_len;
mod_len = mex->inputdatalength;
if (mod_len <= 128) {
struct type50_meb1_msg *meb1 = ap_msg->message;
memset(meb1, 0, sizeof(*meb1));
ap_msg->length = sizeof(*meb1);
meb1->header.msg_type_code = TYPE50_TYPE_CODE;
meb1->header.msg_len = sizeof(*meb1);
meb1->keyblock_type = TYPE50_MEB1_FMT;
mod = meb1->modulus + sizeof(meb1->modulus) - mod_len;
exp = meb1->exponent + sizeof(meb1->exponent) - mod_len;
inp = meb1->message + sizeof(meb1->message) - mod_len;
} else if (mod_len <= 256) {
struct type50_meb2_msg *meb2 = ap_msg->message;
memset(meb2, 0, sizeof(*meb2));
ap_msg->length = sizeof(*meb2);
meb2->header.msg_type_code = TYPE50_TYPE_CODE;
meb2->header.msg_len = sizeof(*meb2);
meb2->keyblock_type = TYPE50_MEB2_FMT;
mod = meb2->modulus + sizeof(meb2->modulus) - mod_len;
exp = meb2->exponent + sizeof(meb2->exponent) - mod_len;
inp = meb2->message + sizeof(meb2->message) - mod_len;
} else {
/* mod_len > 256 = 4096 bit RSA Key */
struct type50_meb3_msg *meb3 = ap_msg->message;
memset(meb3, 0, sizeof(*meb3));
ap_msg->length = sizeof(*meb3);
meb3->header.msg_type_code = TYPE50_TYPE_CODE;
meb3->header.msg_len = sizeof(*meb3);
meb3->keyblock_type = TYPE50_MEB3_FMT;
mod = meb3->modulus + sizeof(meb3->modulus) - mod_len;
exp = meb3->exponent + sizeof(meb3->exponent) - mod_len;
inp = meb3->message + sizeof(meb3->message) - mod_len;
}
if (copy_from_user(mod, mex->n_modulus, mod_len) ||
copy_from_user(exp, mex->b_key, mod_len) ||
copy_from_user(inp, mex->inputdata, mod_len))
return -EFAULT;
return 0;
}
/**
* Convert a ICACRT message to a type50 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_type50CRT_msg(struct zcrypt_device *zdev,
struct ap_message *ap_msg,
struct ica_rsa_modexpo_crt *crt)
{
int mod_len, short_len, long_len, long_offset, limit;
unsigned char *p, *q, *dp, *dq, *u, *inp;
mod_len = crt->inputdatalength;
short_len = mod_len / 2;
long_len = mod_len / 2 + 8;
/*
* CEX2A cannot handle p, dp, or U > 128 bytes.
* If we have one of these, we need to do extra checking.
* For CEX3A the limit is 256 bytes.
*/
if (zdev->max_mod_size == CEX3A_MAX_MOD_SIZE)
limit = 256;
else
limit = 128;
if (long_len > limit) {
/*
* zcrypt_rsa_crt already checked for the leading
* zeroes of np_prime, bp_key and u_mult_inc.
*/
long_offset = long_len - limit;
long_len = limit;
} else
long_offset = 0;
/*
* Instead of doing extra work for p, dp, U > 64 bytes, we'll just use
* the larger message structure.
*/
if (long_len <= 64) {
struct type50_crb1_msg *crb1 = ap_msg->message;
memset(crb1, 0, sizeof(*crb1));
ap_msg->length = sizeof(*crb1);
crb1->header.msg_type_code = TYPE50_TYPE_CODE;
crb1->header.msg_len = sizeof(*crb1);
crb1->keyblock_type = TYPE50_CRB1_FMT;
p = crb1->p + sizeof(crb1->p) - long_len;
q = crb1->q + sizeof(crb1->q) - short_len;
dp = crb1->dp + sizeof(crb1->dp) - long_len;
dq = crb1->dq + sizeof(crb1->dq) - short_len;
u = crb1->u + sizeof(crb1->u) - long_len;
inp = crb1->message + sizeof(crb1->message) - mod_len;
} else if (long_len <= 128) {
struct type50_crb2_msg *crb2 = ap_msg->message;
memset(crb2, 0, sizeof(*crb2));
ap_msg->length = sizeof(*crb2);
crb2->header.msg_type_code = TYPE50_TYPE_CODE;
crb2->header.msg_len = sizeof(*crb2);
crb2->keyblock_type = TYPE50_CRB2_FMT;
p = crb2->p + sizeof(crb2->p) - long_len;
q = crb2->q + sizeof(crb2->q) - short_len;
dp = crb2->dp + sizeof(crb2->dp) - long_len;
dq = crb2->dq + sizeof(crb2->dq) - short_len;
u = crb2->u + sizeof(crb2->u) - long_len;
inp = crb2->message + sizeof(crb2->message) - mod_len;
} else {
/* long_len >= 256 */
struct type50_crb3_msg *crb3 = ap_msg->message;
memset(crb3, 0, sizeof(*crb3));
ap_msg->length = sizeof(*crb3);
crb3->header.msg_type_code = TYPE50_TYPE_CODE;
crb3->header.msg_len = sizeof(*crb3);
crb3->keyblock_type = TYPE50_CRB3_FMT;
p = crb3->p + sizeof(crb3->p) - long_len;
q = crb3->q + sizeof(crb3->q) - short_len;
dp = crb3->dp + sizeof(crb3->dp) - long_len;
dq = crb3->dq + sizeof(crb3->dq) - short_len;
u = crb3->u + sizeof(crb3->u) - long_len;
inp = crb3->message + sizeof(crb3->message) - mod_len;
}
if (copy_from_user(p, crt->np_prime + long_offset, long_len) ||
copy_from_user(q, crt->nq_prime, short_len) ||
copy_from_user(dp, crt->bp_key + long_offset, long_len) ||
copy_from_user(dq, crt->bq_key, short_len) ||
copy_from_user(u, crt->u_mult_inv + long_offset, long_len) ||
copy_from_user(inp, crt->inputdata, mod_len))
return -EFAULT;
return 0;
}
/**
* Copy results from a type 80 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_type80(struct zcrypt_device *zdev,
struct ap_message *reply,
char __user *outputdata,
unsigned int outputdatalength)
{
struct type80_hdr *t80h = reply->message;
unsigned char *data;
if (t80h->len < sizeof(*t80h) + outputdatalength) {
/* The result is too short, the CEX2A card may not do that.. */
zdev->online = 0;
return -EAGAIN; /* repeat the request on a different device. */
}
if (zdev->user_space_type == ZCRYPT_CEX2A)
BUG_ON(t80h->len > CEX2A_MAX_RESPONSE_SIZE);
else
BUG_ON(t80h->len > CEX3A_MAX_RESPONSE_SIZE);
data = reply->message + t80h->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 TYPE80_RSP_CODE:
return convert_type80(zdev, reply,
outputdata, outputdatalength);
default: /* Unknown response type, this should NEVER EVER happen */
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_cex2a_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 type80_hdr *t80h;
int length;
/* Copy the reply message to the request message buffer. */
if (IS_ERR(reply)) {
memcpy(msg->message, &error_reply, sizeof(error_reply));
goto out;
}
t80h = reply->message;
if (t80h->type == TYPE80_RSP_CODE) {
if (ap_dev->device_type == AP_DEVICE_TYPE_CEX2A)
length = min(CEX2A_MAX_RESPONSE_SIZE, (int) t80h->len);
else
length = min(CEX3A_MAX_RESPONSE_SIZE, (int) t80h->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 CEX2A
* device to handle a modexpo request.
* @zdev: pointer to zcrypt_device structure that identifies the
* CEX2A device to the request distributor
* @mex: pointer to the modexpo request buffer
*/
static long zcrypt_cex2a_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);
if (zdev->user_space_type == ZCRYPT_CEX2A)
ap_msg.message = kmalloc(CEX2A_MAX_MESSAGE_SIZE, GFP_KERNEL);
else
ap_msg.message = kmalloc(CEX3A_MAX_MESSAGE_SIZE, GFP_KERNEL);
if (!ap_msg.message)
return -ENOMEM;
ap_msg.receive = zcrypt_cex2a_receive;
ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
atomic_inc_return(&zcrypt_step);
ap_msg.private = &work;
rc = ICAMEX_msg_to_type50MEX_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 = 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 CEX2A
* device to handle a modexpo_crt request.
* @zdev: pointer to zcrypt_device structure that identifies the
* CEX2A device to the request distributor
* @crt: pointer to the modexpoc_crt request buffer
*/
static long zcrypt_cex2a_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);
if (zdev->user_space_type == ZCRYPT_CEX2A)
ap_msg.message = kmalloc(CEX2A_MAX_MESSAGE_SIZE, GFP_KERNEL);
else
ap_msg.message = kmalloc(CEX3A_MAX_MESSAGE_SIZE, GFP_KERNEL);
if (!ap_msg.message)
return -ENOMEM;
ap_msg.receive = zcrypt_cex2a_receive;
ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
atomic_inc_return(&zcrypt_step);
ap_msg.private = &work;
rc = ICACRT_msg_to_type50CRT_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 = 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 CEX2A card.
*/
static struct zcrypt_ops zcrypt_cex2a_ops = {
.rsa_modexpo = zcrypt_cex2a_modexpo,
.rsa_modexpo_crt = zcrypt_cex2a_modexpo_crt,
};
/**
* Probe function for CEX2A cards. It always accepts the AP device
* since the bus_match already checked the hardware type.
......@@ -458,16 +120,18 @@ static int zcrypt_cex2a_probe(struct ap_device *ap_dev)
zdev->speed_rating = CEX3A_SPEED_RATING;
break;
}
if (zdev != NULL) {
zdev->ap_dev = ap_dev;
zdev->ops = &zcrypt_cex2a_ops;
zdev->online = 1;
ap_dev->reply = &zdev->reply;
ap_dev->private = zdev;
rc = zcrypt_device_register(zdev);
}
if (!zdev)
return -ENODEV;
zdev->ops = zcrypt_msgtype_request(MSGTYPE50_NAME,
MSGTYPE50_VARIANT_DEFAULT);
zdev->ap_dev = ap_dev;
zdev->online = 1;
ap_dev->reply = &zdev->reply;
ap_dev->private = zdev;
rc = zcrypt_device_register(zdev);
if (rc) {
ap_dev->private = NULL;
zcrypt_msgtype_release(zdev->ops);
zcrypt_device_free(zdev);
}
return rc;
......@@ -480,8 +144,10 @@ static int zcrypt_cex2a_probe(struct ap_device *ap_dev)
static void zcrypt_cex2a_remove(struct ap_device *ap_dev)
{
struct zcrypt_device *zdev = ap_dev->private;
struct zcrypt_ops *zops = zdev->ops;
zcrypt_device_unregister(zdev);
zcrypt_msgtype_release(zops);
}
int __init zcrypt_cex2a_init(void)
......
drivers/s390/crypto/zcrypt_msgtype50.c 0 → 100644
浏览文件 @ 5e55a488
/*
* zcrypt 2.1.0
*
* Copyright IBM Corp. 2001, 2012
* 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>
* MSGTYPE restruct: Holger Dengler <hd@linux.vnet.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/slab.h>
#include <linux/init.h>
#include <linux/err.h>
#include <linux/atomic.h>
#include <linux/uaccess.h>
#include "ap_bus.h"
#include "zcrypt_api.h"
#include "zcrypt_error.h"
#include "zcrypt_msgtype50.h"
#define CEX3A_MAX_MOD_SIZE 512 /* 4096 bits */
#define CEX2A_MAX_RESPONSE_SIZE 0x110 /* max outputdatalength + type80_hdr */
#define CEX3A_MAX_RESPONSE_SIZE 0x210 /* 512 bit modulus
* (max outputdatalength) +
* type80_hdr*/
MODULE_AUTHOR("IBM Corporation");
MODULE_DESCRIPTION("Cryptographic Accelerator (message type 50), " \
"Copyright IBM Corp. 2001, 2012");
MODULE_LICENSE("GPL");
static void zcrypt_cex2a_receive(struct ap_device *, struct ap_message *,
struct ap_message *);
/**
* The type 50 message family is associated with a CEX2A 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 type50_hdr {
unsigned char reserved1;
unsigned char msg_type_code; /* 0x50 */
unsigned short msg_len;
unsigned char reserved2;
unsigned char ignored;
unsigned short reserved3;
} __packed;
#define TYPE50_TYPE_CODE 0x50
#define TYPE50_MEB1_FMT 0x0001
#define TYPE50_MEB2_FMT 0x0002
#define TYPE50_MEB3_FMT 0x0003
#define TYPE50_CRB1_FMT 0x0011
#define TYPE50_CRB2_FMT 0x0012
#define TYPE50_CRB3_FMT 0x0013
/* Mod-Exp, with a small modulus */
struct type50_meb1_msg {
struct type50_hdr header;
unsigned short keyblock_type; /* 0x0001 */
unsigned char reserved[6];
unsigned char exponent[128];
unsigned char modulus[128];
unsigned char message[128];
} __packed;
/* Mod-Exp, with a large modulus */
struct type50_meb2_msg {
struct type50_hdr header;
unsigned short keyblock_type; /* 0x0002 */
unsigned char reserved[6];
unsigned char exponent[256];
unsigned char modulus[256];
unsigned char message[256];
} __packed;
/* Mod-Exp, with a larger modulus */
struct type50_meb3_msg {
struct type50_hdr header;
unsigned short keyblock_type; /* 0x0003 */
unsigned char reserved[6];
unsigned char exponent[512];
unsigned char modulus[512];
unsigned char message[512];
} __packed;
/* CRT, with a small modulus */
struct type50_crb1_msg {
struct type50_hdr header;
unsigned short keyblock_type; /* 0x0011 */
unsigned char reserved[6];
unsigned char p[64];
unsigned char q[64];
unsigned char dp[64];
unsigned char dq[64];
unsigned char u[64];
unsigned char message[128];
} __packed;
/* CRT, with a large modulus */
struct type50_crb2_msg {
struct type50_hdr header;
unsigned short keyblock_type; /* 0x0012 */
unsigned char reserved[6];
unsigned char p[128];
unsigned char q[128];
unsigned char dp[128];
unsigned char dq[128];
unsigned char u[128];
unsigned char message[256];
} __packed;
/* CRT, with a larger modulus */
struct type50_crb3_msg {
struct type50_hdr header;
unsigned short keyblock_type; /* 0x0013 */
unsigned char reserved[6];
unsigned char p[256];
unsigned char q[256];
unsigned char dp[256];
unsigned char dq[256];
unsigned char u[256];
unsigned char message[512];
} __packed;
/**
* The type 80 response family is associated with a CEX2A card.
*
* Note that all unsigned char arrays are right-justified and left-padded
* with zeroes.
*
* Note that all reserved fields must be zeroes.
*/
#define TYPE80_RSP_CODE 0x80
struct type80_hdr {
unsigned char reserved1;
unsigned char type; /* 0x80 */
unsigned short len;
unsigned char code; /* 0x00 */
unsigned char reserved2[3];
unsigned char reserved3[8];
} __packed;
/**
* Convert a ICAMEX message to a type50 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_type50MEX_msg(struct zcrypt_device *zdev,
struct ap_message *ap_msg,
struct ica_rsa_modexpo *mex)
{
unsigned char *mod, *exp, *inp;
int mod_len;
mod_len = mex->inputdatalength;
if (mod_len <= 128) {
struct type50_meb1_msg *meb1 = ap_msg->message;
memset(meb1, 0, sizeof(*meb1));
ap_msg->length = sizeof(*meb1);
meb1->header.msg_type_code = TYPE50_TYPE_CODE;
meb1->header.msg_len = sizeof(*meb1);
meb1->keyblock_type = TYPE50_MEB1_FMT;
mod = meb1->modulus + sizeof(meb1->modulus) - mod_len;
exp = meb1->exponent + sizeof(meb1->exponent) - mod_len;
inp = meb1->message + sizeof(meb1->message) - mod_len;
} else if (mod_len <= 256) {
struct type50_meb2_msg *meb2 = ap_msg->message;
memset(meb2, 0, sizeof(*meb2));
ap_msg->length = sizeof(*meb2);
meb2->header.msg_type_code = TYPE50_TYPE_CODE;
meb2->header.msg_len = sizeof(*meb2);
meb2->keyblock_type = TYPE50_MEB2_FMT;
mod = meb2->modulus + sizeof(meb2->modulus) - mod_len;
exp = meb2->exponent + sizeof(meb2->exponent) - mod_len;
inp = meb2->message + sizeof(meb2->message) - mod_len;
} else {
/* mod_len > 256 = 4096 bit RSA Key */
struct type50_meb3_msg *meb3 = ap_msg->message;
memset(meb3, 0, sizeof(*meb3));
ap_msg->length = sizeof(*meb3);
meb3->header.msg_type_code = TYPE50_TYPE_CODE;
meb3->header.msg_len = sizeof(*meb3);
meb3->keyblock_type = TYPE50_MEB3_FMT;
mod = meb3->modulus + sizeof(meb3->modulus) - mod_len;
exp = meb3->exponent + sizeof(meb3->exponent) - mod_len;
inp = meb3->message + sizeof(meb3->message) - mod_len;
}
if (copy_from_user(mod, mex->n_modulus, mod_len) ||
copy_from_user(exp, mex->b_key, mod_len) ||
copy_from_user(inp, mex->inputdata, mod_len))
return -EFAULT;
return 0;
}
/**
* Convert a ICACRT message to a type50 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_type50CRT_msg(struct zcrypt_device *zdev,
struct ap_message *ap_msg,
struct ica_rsa_modexpo_crt *crt)
{
int mod_len, short_len, long_len, long_offset, limit;
unsigned char *p, *q, *dp, *dq, *u, *inp;
mod_len = crt->inputdatalength;
short_len = mod_len / 2;
long_len = mod_len / 2 + 8;
/*
* CEX2A cannot handle p, dp, or U > 128 bytes.
* If we have one of these, we need to do extra checking.
* For CEX3A the limit is 256 bytes.
*/
if (zdev->max_mod_size == CEX3A_MAX_MOD_SIZE)
limit = 256;
else
limit = 128;
if (long_len > limit) {
/*
* zcrypt_rsa_crt already checked for the leading
* zeroes of np_prime, bp_key and u_mult_inc.
*/
long_offset = long_len - limit;
long_len = limit;
} else
long_offset = 0;
/*
* Instead of doing extra work for p, dp, U > 64 bytes, we'll just use
* the larger message structure.
*/
if (long_len <= 64) {
struct type50_crb1_msg *crb1 = ap_msg->message;
memset(crb1, 0, sizeof(*crb1));
ap_msg->length = sizeof(*crb1);
crb1->header.msg_type_code = TYPE50_TYPE_CODE;
crb1->header.msg_len = sizeof(*crb1);
crb1->keyblock_type = TYPE50_CRB1_FMT;
p = crb1->p + sizeof(crb1->p) - long_len;
q = crb1->q + sizeof(crb1->q) - short_len;
dp = crb1->dp + sizeof(crb1->dp) - long_len;
dq = crb1->dq + sizeof(crb1->dq) - short_len;
u = crb1->u + sizeof(crb1->u) - long_len;
inp = crb1->message + sizeof(crb1->message) - mod_len;
} else if (long_len <= 128) {
struct type50_crb2_msg *crb2 = ap_msg->message;
memset(crb2, 0, sizeof(*crb2));
ap_msg->length = sizeof(*crb2);
crb2->header.msg_type_code = TYPE50_TYPE_CODE;
crb2->header.msg_len = sizeof(*crb2);
crb2->keyblock_type = TYPE50_CRB2_FMT;
p = crb2->p + sizeof(crb2->p) - long_len;
q = crb2->q + sizeof(crb2->q) - short_len;
dp = crb2->dp + sizeof(crb2->dp) - long_len;
dq = crb2->dq + sizeof(crb2->dq) - short_len;
u = crb2->u + sizeof(crb2->u) - long_len;
inp = crb2->message + sizeof(crb2->message) - mod_len;
} else {
/* long_len >= 256 */
struct type50_crb3_msg *crb3 = ap_msg->message;
memset(crb3, 0, sizeof(*crb3));
ap_msg->length = sizeof(*crb3);
crb3->header.msg_type_code = TYPE50_TYPE_CODE;
crb3->header.msg_len = sizeof(*crb3);
crb3->keyblock_type = TYPE50_CRB3_FMT;
p = crb3->p + sizeof(crb3->p) - long_len;
q = crb3->q + sizeof(crb3->q) - short_len;
dp = crb3->dp + sizeof(crb3->dp) - long_len;
dq = crb3->dq + sizeof(crb3->dq) - short_len;
u = crb3->u + sizeof(crb3->u) - long_len;
inp = crb3->message + sizeof(crb3->message) - mod_len;
}
if (copy_from_user(p, crt->np_prime + long_offset, long_len) ||
copy_from_user(q, crt->nq_prime, short_len) ||
copy_from_user(dp, crt->bp_key + long_offset, long_len) ||
copy_from_user(dq, crt->bq_key, short_len) ||
copy_from_user(u, crt->u_mult_inv + long_offset, long_len) ||
copy_from_user(inp, crt->inputdata, mod_len))
return -EFAULT;
return 0;
}
/**
* Copy results from a type 80 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_type80(struct zcrypt_device *zdev,
struct ap_message *reply,
char __user *outputdata,
unsigned int outputdatalength)
{
struct type80_hdr *t80h = reply->message;
unsigned char *data;
if (t80h->len < sizeof(*t80h) + outputdatalength) {
/* The result is too short, the CEX2A card may not do that.. */
zdev->online = 0;
return -EAGAIN; /* repeat the request on a different device. */
}
if (zdev->user_space_type == ZCRYPT_CEX2A)
BUG_ON(t80h->len > CEX2A_MAX_RESPONSE_SIZE);
else
BUG_ON(t80h->len > CEX3A_MAX_RESPONSE_SIZE);
data = reply->message + t80h->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 TYPE80_RSP_CODE:
return convert_type80(zdev, reply,
outputdata, outputdatalength);
default: /* Unknown response type, this should NEVER EVER happen */
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_cex2a_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 type80_hdr *t80h;
int length;
/* Copy the reply message to the request message buffer. */
if (IS_ERR(reply)) {
memcpy(msg->message, &error_reply, sizeof(error_reply));
goto out;
}
t80h = reply->message;
if (t80h->type == TYPE80_RSP_CODE) {
if (ap_dev->device_type == AP_DEVICE_TYPE_CEX2A)
length = min_t(int,
CEX2A_MAX_RESPONSE_SIZE, t80h->len);
else
length = min_t(int,
CEX3A_MAX_RESPONSE_SIZE, t80h->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 CEX2A
* device to handle a modexpo request.
* @zdev: pointer to zcrypt_device structure that identifies the
* CEX2A device to the request distributor
* @mex: pointer to the modexpo request buffer
*/
static long zcrypt_cex2a_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);
if (zdev->user_space_type == ZCRYPT_CEX2A)
ap_msg.message = kmalloc(MSGTYPE50_CRB2_MAX_MSG_SIZE,
GFP_KERNEL);
else
ap_msg.message = kmalloc(MSGTYPE50_CRB3_MAX_MSG_SIZE,
GFP_KERNEL);
if (!ap_msg.message)
return -ENOMEM;
ap_msg.receive = zcrypt_cex2a_receive;
ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
atomic_inc_return(&zcrypt_step);
ap_msg.private = &work;
rc = ICAMEX_msg_to_type50MEX_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 = 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 CEX2A
* device to handle a modexpo_crt request.
* @zdev: pointer to zcrypt_device structure that identifies the
* CEX2A device to the request distributor
* @crt: pointer to the modexpoc_crt request buffer
*/
static long zcrypt_cex2a_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);
if (zdev->user_space_type == ZCRYPT_CEX2A)
ap_msg.message = kmalloc(MSGTYPE50_CRB2_MAX_MSG_SIZE,
GFP_KERNEL);
else
ap_msg.message = kmalloc(MSGTYPE50_CRB3_MAX_MSG_SIZE,
GFP_KERNEL);
if (!ap_msg.message)
return -ENOMEM;
ap_msg.receive = zcrypt_cex2a_receive;
ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
atomic_inc_return(&zcrypt_step);
ap_msg.private = &work;
rc = ICACRT_msg_to_type50CRT_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 = 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 message type 50.
*/
static struct zcrypt_ops zcrypt_msgtype50_ops = {
.rsa_modexpo = zcrypt_cex2a_modexpo,
.rsa_modexpo_crt = zcrypt_cex2a_modexpo_crt,
.owner = THIS_MODULE,
.variant = MSGTYPE50_VARIANT_DEFAULT,
};
int __init zcrypt_msgtype50_init(void)
{
zcrypt_msgtype_register(&zcrypt_msgtype50_ops);
return 0;
}
void __exit zcrypt_msgtype50_exit(void)
{
zcrypt_msgtype_unregister(&zcrypt_msgtype50_ops);
}
module_init(zcrypt_msgtype50_init);
module_exit(zcrypt_msgtype50_exit);
drivers/s390/crypto/zcrypt_msgtype50.h 0 → 100644
浏览文件 @ 5e55a488
/*
* zcrypt 2.1.0
*
* Copyright IBM Corp. 2001, 2012
* 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>
* MSGTYPE restruct: Holger Dengler <hd@linux.vnet.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_MSGTYPE50_H_
#define _ZCRYPT_MSGTYPE50_H_
#define MSGTYPE50_NAME "zcrypt_msgtype50"
#define MSGTYPE50_VARIANT_DEFAULT 0
#define MSGTYPE50_CRB2_MAX_MSG_SIZE 0x390 /*sizeof(struct type50_crb2_msg)*/
#define MSGTYPE50_CRB3_MAX_MSG_SIZE 0x710 /*sizeof(struct type50_crb3_msg)*/
int zcrypt_msgtype50_init(void);
void zcrypt_msgtype50_exit(void);
#endif /* _ZCRYPT_MSGTYPE50_H_ */
drivers/s390/crypto/zcrypt_msgtype6.c 0 → 100644
浏览文件 @ 5e55a488
此差异已折叠。
drivers/s390/crypto/zcrypt_msgtype6.h 0 → 100644
浏览文件 @ 5e55a488
/*
* zcrypt 2.1.0
*
* Copyright IBM Corp. 2001, 2012
* 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>
* MSGTYPE restruct: Holger Dengler <hd@linux.vnet.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_MSGTYPE6_H_
#define _ZCRYPT_MSGTYPE6_H_
#include <asm/zcrypt.h>
#define MSGTYPE06_NAME "zcrypt_msgtype6"
#define MSGTYPE06_VARIANT_DEFAULT 0
#define MSGTYPE06_VARIANT_NORNG 1
#define MSGTYPE06_MAX_MSG_SIZE (12*1024)
/**
* 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 */
} __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 */
} __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 */
} __packed;
/**
* Prepare a type6 CPRB message for random number generation
*
* @ap_dev: AP device pointer
* @ap_msg: pointer to AP message
*/
static inline void rng_type6CPRB_msgX(struct ap_device *ap_dev,
struct ap_message *ap_msg,
unsigned random_number_length)
{
struct {
struct type6_hdr hdr;
struct CPRBX cprbx;
char function_code[2];
short int rule_length;
char rule[8];
short int verb_length;
short int key_length;
} __packed * msg = ap_msg->message;
static struct type6_hdr static_type6_hdrX = {
.type = 0x06,
.offset1 = 0x00000058,
.agent_id = {'C', 'A'},
.function_code = {'R', 'L'},
.ToCardLen1 = sizeof(*msg) - sizeof(msg->hdr),
.FromCardLen1 = sizeof(*msg) - sizeof(msg->hdr),
};
static struct CPRBX local_cprbx = {
.cprb_len = 0x00dc,
.cprb_ver_id = 0x02,
.func_id = {0x54, 0x32},
.req_parml = sizeof(*msg) - sizeof(msg->hdr) -
sizeof(msg->cprbx),
.rpl_msgbl = sizeof(*msg) - sizeof(msg->hdr),
};
msg->hdr = static_type6_hdrX;
msg->hdr.FromCardLen2 = random_number_length,
msg->cprbx = local_cprbx;
msg->cprbx.rpl_datal = random_number_length,
msg->cprbx.domain = AP_QID_QUEUE(ap_dev->qid);
memcpy(msg->function_code, msg->hdr.function_code, 0x02);
msg->rule_length = 0x0a;
memcpy(msg->rule, "RANDOM ", 8);
msg->verb_length = 0x02;
msg->key_length = 0x02;
ap_msg->length = sizeof(*msg);
}
int zcrypt_msgtype6_init(void);
void zcrypt_msgtype6_exit(void);
#endif /* _ZCRYPT_MSGTYPE6_H_ */
drivers/s390/crypto/zcrypt_pcixcc.c
浏览文件 @ 5e55a488
此差异已折叠。
drivers/s390/crypto/zcrypt_pcixcc.h
浏览文件 @ 5e55a488
/*
* zcrypt 2.1.0
*
* Copyright IBM Corp. 2001, 2006
* Copyright IBM Corp. 2001, 2012
* 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>
* MSGTYPE restruct: Holger Dengler <hd@linux.vnet.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
......
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