From b96a9e5140d4d6253e499bd18c35a7d085ac46e2 Mon Sep 17 00:00:00 2001 From: Martin Schwidefsky Date: Mon, 14 Sep 2015 17:28:26 +0200 Subject: 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 Signed-off-by: Martin Schwidefsky diff --git a/drivers/s390/crypto/Makefile b/drivers/s390/crypto/Makefile index 771faf7..57f710b 100644 --- a/drivers/s390/crypto/Makefile +++ b/drivers/s390/crypto/Makefile @@ -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 diff --git a/drivers/s390/crypto/ap_bus.c b/drivers/s390/crypto/ap_bus.c index 92d3b67..1d61c86 100644 --- a/drivers/s390/crypto/ap_bus.c +++ b/drivers/s390/crypto/ap_bus.c @@ -1591,103 +1591,6 @@ static int ap_select_domain(void) } /** - * 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 * @data: Pointer to data @@ -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; diff --git a/drivers/s390/crypto/zcrypt_pcica.c b/drivers/s390/crypto/zcrypt_pcica.c deleted file mode 100644 index 6af9c9f..0000000 --- a/drivers/s390/crypto/zcrypt_pcica.c +++ /dev/null @@ -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 - * Ralph Wuerthner - * - * 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 -#include -#include -#include -#include -#include - -#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); diff --git a/drivers/s390/crypto/zcrypt_pcica.h b/drivers/s390/crypto/zcrypt_pcica.h deleted file mode 100644 index 9a59155..0000000 --- a/drivers/s390/crypto/zcrypt_pcica.h +++ /dev/null @@ -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 - * - * 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_ */ diff --git a/drivers/s390/crypto/zcrypt_pcicc.c b/drivers/s390/crypto/zcrypt_pcicc.c deleted file mode 100644 index 4cf2115..0000000 --- a/drivers/s390/crypto/zcrypt_pcicc.c +++ /dev/null @@ -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 - * Ralph Wuerthner - * - * 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 -#include -#include -#include -#include -#include - -#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); diff --git a/drivers/s390/crypto/zcrypt_pcicc.h b/drivers/s390/crypto/zcrypt_pcicc.h deleted file mode 100644 index 7fe27e1..0000000 --- a/drivers/s390/crypto/zcrypt_pcicc.h +++ /dev/null @@ -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 - * - * 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_ */ -- cgit v0.10.2