--- /dev/null
+/*?
+ * Text: "Cryptographic device %x failed and was set offline\n"
+ * Severity: Error
+ * Parameter:
+ * @1: device index
+ * Description:
+ * A cryptographic device failed to process a cryptographic request.
+ * The cryptographic device driver could not correct the error and
+ * set the device offline. The application that issued the
+ * request received an indication that the request has failed.
+ * User action:
+ * Use the lszcrypt command to confirm that the cryptographic
+ * hardware is still configured to your LPAR or z/VM guest virtual
+ * machine. If the device is available to your Linux instance the
+ * command output contains a line that begins with 'card<device index>',
+ * where <device index> is the two-digit decimal number in the message text.
+ * After ensuring that the device is available, use the chzcrypt command to
+ * set it online again.
+ * If the error persists, contact your support organization.
+ */
unsigned short priority_window;
unsigned int status;
} __attribute__((packed));
+
+/**
+ * struct ep11_cprb - EP11 connectivity programming request block
+ * @cprb_len: CPRB header length [0x0020]
+ * @cprb_ver_id: CPRB version id. [0x04]
+ * @pad_000: Alignment pad bytes
+ * @flags: Admin cmd [0x80] or functional cmd [0x00]
+ * @func_id: Function id / subtype [0x5434]
+ * @source_id: Source id [originator id]
+ * @target_id: Target id [usage/ctrl domain id]
+ * @ret_code: Return code
+ * @reserved1: Reserved
+ * @reserved2: Reserved
+ * @payload_len: Payload length
+ */
+struct ep11_cprb {
+ uint16_t cprb_len;
+ unsigned char cprb_ver_id;
+ unsigned char pad_000[2];
+ unsigned char flags;
+ unsigned char func_id[2];
+ uint32_t source_id;
+ uint32_t target_id;
+ uint32_t ret_code;
+ uint32_t reserved1;
+ uint32_t reserved2;
+ uint32_t payload_len;
+} __attribute__((packed));
+
+/**
+ * struct ep11_target_dev - EP11 target device list
+ * @ap_id: AP device id
+ * @dom_id: Usage domain id
+ */
+struct ep11_target_dev {
+ uint16_t ap_id;
+ uint16_t dom_id;
+};
+
+/**
+ * struct ep11_urb - EP11 user request block
+ * @targets_num: Number of target adapters
+ * @targets: Addr to target adapter list
+ * @weight: Level of request priority
+ * @req_no: Request id/number
+ * @req_len: Request length
+ * @req: Addr to request block
+ * @resp_len: Response length
+ * @resp: Addr to response block
+ */
+struct ep11_urb {
+ uint16_t targets_num;
+ uint64_t targets;
+ uint64_t weight;
+ uint64_t req_no;
+ uint64_t req_len;
+ uint64_t req;
+ uint64_t resp_len;
+ uint64_t resp;
+} __attribute__((packed));
+
#define AUTOSELECT ((unsigned int)0xFFFFFFFF)
#define ZCRYPT_IOCTL_MAGIC 'z'
* ZSECSENDCPRB
* Send an arbitrary CPRB to a crypto card.
*
+ * ZSENDEP11CPRB
+ * Send an arbitrary EP11 CPRB to an EP11 coprocessor crypto card.
+ *
* Z90STAT_STATUS_MASK
* Return an 64 element array of unsigned chars for the status of
* all devices.
#define ICARSAMODEXPO _IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x05, 0)
#define ICARSACRT _IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x06, 0)
#define ZSECSENDCPRB _IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x81, 0)
+#define ZSENDEP11CPRB _IOC(_IOC_READ|_IOC_WRITE, ZCRYPT_IOCTL_MAGIC, 0x04, 0)
/* New status calls */
#define Z90STAT_TOTALCOUNT _IOR(ZCRYPT_IOCTL_MAGIC, 0x40, int)
if (rc != -ENODEV && rc != -EBUSY)
break;
if (i < AP_MAX_RESET - 1) {
- udelay(5);
+ /* Time we are waiting until we give up (0.7sec * 90).
+ * Since the actual request (in progress) will not
+ * interrupted immediately for the reset command,
+ * we have to be patient. In worst case we have to
+ * wait 60sec + reset time (some msec).
+ */
+ schedule_timeout(AP_RESET_TIMEOUT);
status = ap_test_queue(qid, &dummy, &dummy);
}
}
static BUS_ATTR(ap_domain, 0444, ap_domain_show, NULL);
+static ssize_t ap_control_domain_mask_show(struct bus_type *bus, char *buf)
+{
+ if (ap_configuration != NULL) { /* QCI not supported */
+ if (test_facility(76)) { /* format 1 - 256 bit domain field */
+ return snprintf(buf, PAGE_SIZE,
+ "0x%08x%08x%08x%08x%08x%08x%08x%08x\n",
+ ap_configuration->adm[0], ap_configuration->adm[1],
+ ap_configuration->adm[2], ap_configuration->adm[3],
+ ap_configuration->adm[4], ap_configuration->adm[5],
+ ap_configuration->adm[6], ap_configuration->adm[7]);
+ } else { /* format 0 - 16 bit domain field */
+ return snprintf(buf, PAGE_SIZE, "%08x%08x\n",
+ ap_configuration->adm[0], ap_configuration->adm[1]);
+ }
+ } else {
+ return snprintf(buf, PAGE_SIZE, "not supported\n");
+ }
+}
+
+static BUS_ATTR(ap_control_domain_mask, 0444,
+ ap_control_domain_mask_show, NULL);
+
static ssize_t ap_config_time_show(struct bus_type *bus, char *buf)
{
return snprintf(buf, PAGE_SIZE, "%d\n", ap_config_time);
static struct bus_attribute *const ap_bus_attrs[] = {
&bus_attr_ap_domain,
+ &bus_attr_ap_control_domain_mask,
&bus_attr_config_time,
&bus_attr_poll_thread,
&bus_attr_ap_interrupts,
#define AP_DEVICES 64 /* Number of AP devices. */
#define AP_DOMAINS 16 /* Number of AP domains. */
#define AP_MAX_RESET 90 /* Maximum number of resets. */
-#define AP_RESET_TIMEOUT (HZ/2) /* Time in ticks for reset timeouts. */
+#define AP_RESET_TIMEOUT (HZ*0.7) /* Time in ticks for reset timeouts. */
#define AP_CONFIG_TIME 30 /* Time in seconds between AP bus rescans. */
#define AP_POLL_TIME 1 /* Time in ticks between receive polls. */
#define AP_FUNC_CRT4K 2
#define AP_FUNC_COPRO 3
#define AP_FUNC_ACCEL 4
+#define AP_FUNC_EP11 5
+#define AP_FUNC_APXA 6
/*
* AP reset flag states
#include "zcrypt_debug.h"
#include "zcrypt_api.h"
+#include "zcrypt_msgtype6.h"
+
/*
* Module description.
*/
spin_lock_bh(&zcrypt_device_lock);
list_for_each_entry(zdev, &zcrypt_device_list, list) {
if (!zdev->online || !zdev->ops->send_cprb ||
- (xcRB->user_defined != AUTOSELECT &&
- AP_QID_DEVICE(zdev->ap_dev->qid) != xcRB->user_defined)
- )
+ (zdev->ops->variant == MSGTYPE06_VARIANT_EP11) ||
+ (xcRB->user_defined != AUTOSELECT &&
+ AP_QID_DEVICE(zdev->ap_dev->qid) != xcRB->user_defined))
continue;
zcrypt_device_get(zdev);
get_device(&zdev->ap_dev->device);
return -ENODEV;
}
+struct ep11_target_dev_list {
+ unsigned short targets_num;
+ struct ep11_target_dev *targets;
+};
+
+static bool is_desired_ep11dev(unsigned int dev_qid,
+ struct ep11_target_dev_list dev_list)
+{
+ int n;
+
+ for (n = 0; n < dev_list.targets_num; n++, dev_list.targets++) {
+ if ((AP_QID_DEVICE(dev_qid) == dev_list.targets->ap_id) &&
+ (AP_QID_QUEUE(dev_qid) == dev_list.targets->dom_id)) {
+ return true;
+ }
+ }
+ return false;
+}
+
+static long zcrypt_send_ep11_cprb(struct ep11_urb *xcrb)
+{
+ struct zcrypt_device *zdev;
+ bool autoselect = false;
+ int rc;
+ struct ep11_target_dev_list ep11_dev_list = {
+ .targets_num = 0x00,
+ .targets = NULL,
+ };
+
+ ep11_dev_list.targets_num = (unsigned short) xcrb->targets_num;
+
+ /* empty list indicates autoselect (all available targets) */
+ if (ep11_dev_list.targets_num == 0)
+ autoselect = true;
+ else {
+ ep11_dev_list.targets = kcalloc((unsigned short)
+ xcrb->targets_num,
+ sizeof(struct ep11_target_dev),
+ GFP_KERNEL);
+ if (!ep11_dev_list.targets)
+ return -ENOMEM;
+
+ if (copy_from_user(ep11_dev_list.targets,
+ (struct ep11_target_dev *)xcrb->targets,
+ xcrb->targets_num *
+ sizeof(struct ep11_target_dev)))
+ return -EFAULT;
+ }
+
+ spin_lock_bh(&zcrypt_device_lock);
+ list_for_each_entry(zdev, &zcrypt_device_list, list) {
+ /* check if device is eligible */
+ if (!zdev->online ||
+ zdev->ops->variant != MSGTYPE06_VARIANT_EP11)
+ continue;
+
+ /* check if device is selected as valid target */
+ if (!is_desired_ep11dev(zdev->ap_dev->qid, ep11_dev_list) &&
+ !autoselect)
+ continue;
+
+ zcrypt_device_get(zdev);
+ get_device(&zdev->ap_dev->device);
+ zdev->request_count++;
+ __zcrypt_decrease_preference(zdev);
+ if (try_module_get(zdev->ap_dev->drv->driver.owner)) {
+ spin_unlock_bh(&zcrypt_device_lock);
+ rc = zdev->ops->send_ep11_cprb(zdev, xcrb);
+ spin_lock_bh(&zcrypt_device_lock);
+ module_put(zdev->ap_dev->drv->driver.owner);
+ } else {
+ rc = -EAGAIN;
+ }
+ zdev->request_count--;
+ __zcrypt_increase_preference(zdev);
+ put_device(&zdev->ap_dev->device);
+ zcrypt_device_put(zdev);
+ spin_unlock_bh(&zcrypt_device_lock);
+ return rc;
+ }
+ spin_unlock_bh(&zcrypt_device_lock);
+ return -ENODEV;
+}
+
static long zcrypt_rng(char *buffer)
{
struct zcrypt_device *zdev;
return -EFAULT;
return rc;
}
+ case ZSENDEP11CPRB: {
+ struct ep11_urb __user *uxcrb = (void __user *)arg;
+ struct ep11_urb xcrb;
+ if (copy_from_user(&xcrb, uxcrb, sizeof(xcrb)))
+ return -EFAULT;
+ do {
+ rc = zcrypt_send_ep11_cprb(&xcrb);
+ } while (rc == -EAGAIN);
+ /* on failure: retry once again after a requested rescan */
+ if ((rc == -ENODEV) && (zcrypt_process_rescan()))
+ do {
+ rc = zcrypt_send_ep11_cprb(&xcrb);
+ } while (rc == -EAGAIN);
+ if (copy_to_user(uxcrb, &xcrb, sizeof(xcrb)))
+ return -EFAULT;
+ return rc;
+ }
case Z90STAT_STATUS_MASK: {
char status[AP_DEVICES];
zcrypt_status_mask(status);
#define ZCRYPT_CEX2A 6
#define ZCRYPT_CEX3C 7
#define ZCRYPT_CEX3A 8
+#define ZCRYPT_CEX4 10
/**
* Large random numbers are pulled in 4096 byte chunks from the crypto cards
long (*rsa_modexpo_crt)(struct zcrypt_device *,
struct ica_rsa_modexpo_crt *);
long (*send_cprb)(struct zcrypt_device *, struct ica_xcRB *);
+ long (*send_ep11_cprb)(struct zcrypt_device *, struct ep11_urb *);
long (*rng)(struct zcrypt_device *, char *);
struct list_head list; /* zcrypt ops list. */
struct module *owner;
#define CEX4A_MAX_MESSAGE_SIZE MSGTYPE50_CRB3_MAX_MSG_SIZE
#define CEX4C_MAX_MESSAGE_SIZE MSGTYPE06_MAX_MSG_SIZE
-#define CEX4_CLEANUP_TIME (15*HZ)
+/* Waiting time for requests to be processed.
+ * Currently there are some types of request which are not deterministic.
+ * But the maximum time limit managed by the stomper code is set to 60sec.
+ * Hence we have to wait at least that time period.
+ */
+#define CEX4_CLEANUP_TIME (61*HZ)
static struct ap_device_id zcrypt_cex4_ids[] = {
{ AP_DEVICE(AP_DEVICE_TYPE_CEX4) },
zdev->speed_rating = CEX4C_SPEED_RATING;
zdev->ops = zcrypt_msgtype_request(MSGTYPE06_NAME,
MSGTYPE06_VARIANT_DEFAULT);
+ } else if (ap_test_bit(&ap_dev->functions, AP_FUNC_EP11)) {
+ zdev = zcrypt_device_alloc(CEX4C_MAX_MESSAGE_SIZE);
+ if (!zdev)
+ return -ENOMEM;
+ zdev->type_string = "CEX4P";
+ zdev->user_space_type = ZCRYPT_CEX4;
+ zdev->min_mod_size = CEX4C_MIN_MOD_SIZE;
+ zdev->max_mod_size = CEX4C_MAX_MOD_SIZE;
+ zdev->max_exp_bit_length = CEX4C_MAX_MOD_SIZE;
+ zdev->short_crt = 0;
+ zdev->speed_rating = CEX4C_SPEED_RATING;
+ zdev->ops = zcrypt_msgtype_request(MSGTYPE06_NAME,
+ MSGTYPE06_VARIANT_EP11);
}
break;
}
// REP88_ERROR_MESSAGE_TYPE // '20' CEX2A
/*
* To sent a message of the wrong type is a bug in the
- * device driver. Warn about it, disable the device
+ * device driver. Send error msg, disable the device
* and then repeat the request.
*/
- WARN_ON(1);
atomic_set(&zcrypt_rescan_req, 1);
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, ehdr->reply_code);
+ zdev->ap_dev->qid, zdev->online, ehdr->reply_code);
return -EAGAIN;
case REP82_ERROR_TRANSPORT_FAIL:
case REP82_ERROR_MACHINE_FAILURE:
/* If a card fails disable it and repeat the request. */
atomic_set(&zcrypt_rescan_req, 1);
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, ehdr->reply_code);
+ zdev->ap_dev->qid, zdev->online, ehdr->reply_code);
return -EAGAIN;
default:
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, ehdr->reply_code);
+ zdev->ap_dev->qid, zdev->online, ehdr->reply_code);
return -EAGAIN; /* repeat the request on a different device. */
}
}
* 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>
if (t80h->len < sizeof(*t80h) + outputdatalength) {
/* The result is too short, the CEX2A 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, t80h->code);
+
return -EAGAIN; /* repeat the request on a different device. */
}
if (zdev->user_space_type == ZCRYPT_CEX2A)
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. */
}
}
* 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/err.h>
};
#define PCIXCC_RESPONSE_TYPE_ICA 0
#define PCIXCC_RESPONSE_TYPE_XCRB 1
+#define PCIXCC_RESPONSE_TYPE_EP11 2
MODULE_AUTHOR("IBM Corporation");
MODULE_DESCRIPTION("Cryptographic Coprocessor (message type 6), " \
return 0;
}
+static int xcrb_msg_to_type6_ep11cprb_msgx(struct zcrypt_device *zdev,
+ struct ap_message *ap_msg,
+ struct ep11_urb *xcRB)
+{
+ unsigned int lfmt;
+
+ static struct type6_hdr static_type6_ep11_hdr = {
+ .type = 0x06,
+ .rqid = {0x00, 0x01},
+ .function_code = {0x00, 0x00},
+ .agent_id[0] = 0x58, /* {'X'} */
+ .agent_id[1] = 0x43, /* {'C'} */
+ .offset1 = 0x00000058,
+ };
+
+ struct {
+ struct type6_hdr hdr;
+ struct ep11_cprb cprbx;
+ unsigned char pld_tag; /* fixed value 0x30 */
+ unsigned char pld_lenfmt; /* payload length format */
+ } __packed * msg = ap_msg->message;
+
+ struct pld_hdr {
+ unsigned char func_tag; /* fixed value 0x4 */
+ unsigned char func_len; /* fixed value 0x4 */
+ unsigned int func_val; /* function ID */
+ unsigned char dom_tag; /* fixed value 0x4 */
+ unsigned char dom_len; /* fixed value 0x4 */
+ unsigned int dom_val; /* domain id */
+ } __packed * payload_hdr;
+
+ /* length checks */
+ ap_msg->length = sizeof(struct type6_hdr) + xcRB->req_len;
+ if (CEIL4(xcRB->req_len) > MSGTYPE06_MAX_MSG_SIZE -
+ (sizeof(struct type6_hdr)))
+ return -EINVAL;
+
+ if (CEIL4(xcRB->resp_len) > MSGTYPE06_MAX_MSG_SIZE -
+ (sizeof(struct type86_fmt2_msg)))
+ return -EINVAL;
+
+ /* prepare type6 header */
+ msg->hdr = static_type6_ep11_hdr;
+ msg->hdr.ToCardLen1 = xcRB->req_len;
+ msg->hdr.FromCardLen1 = xcRB->resp_len;
+
+ /* Import CPRB data from the ioctl input parameter */
+ if (copy_from_user(&(msg->cprbx.cprb_len),
+ (char *)xcRB->req, xcRB->req_len)) {
+ return -EFAULT;
+ }
+
+ /*
+ The target domain field within the cprb body/payload block will be
+ replaced by the usage domain for non-management commands only.
+ Therefore we check the first bit of the 'flags' parameter for
+ management command indication.
+ 0 - non managment command
+ 1 - management command
+ */
+ if (!((msg->cprbx.flags & 0x80) == 0x80)) {
+ msg->cprbx.target_id = (unsigned int)
+ AP_QID_QUEUE(zdev->ap_dev->qid);
+
+ if ((msg->pld_lenfmt & 0x80) == 0x80) { /*ext.len.fmt 2 or 3*/
+ switch (msg->pld_lenfmt & 0x03) {
+ case 1:
+ lfmt = 2;
+ break;
+ case 2:
+ lfmt = 3;
+ break;
+ default:
+ return -EINVAL;
+ }
+ } else {
+ lfmt = 1; /* length format #1 */
+ }
+ payload_hdr = (struct pld_hdr *)((&(msg->pld_lenfmt))+lfmt);
+ payload_hdr->dom_val = (unsigned int)
+ AP_QID_QUEUE(zdev->ap_dev->qid);
+ }
+ return 0;
+}
+
/**
* Copy results from a type 86 ICA reply message back to user space.
*
char text[0];
} __packed;
+struct type86_ep11_reply {
+ struct type86_hdr hdr;
+ struct type86_fmt2_ext fmt2;
+ struct ep11_cprb cprbx;
+} __packed;
+
static int convert_type86_ica(struct zcrypt_device *zdev,
struct ap_message *reply,
char __user *outputdata,
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;
return 0;
}
+/**
+ * Copy results from a type 86 EP11 XCRB reply message back to user space.
+ *
+ * @zdev: crypto device pointer
+ * @reply: reply AP message.
+ * @xcRB: pointer to EP11 user request block
+ *
+ * Returns 0 on success or -EINVAL, -EFAULT, -EAGAIN in case of an error.
+ */
+static int convert_type86_ep11_xcrb(struct zcrypt_device *zdev,
+ struct ap_message *reply,
+ struct ep11_urb *xcRB)
+{
+ struct type86_fmt2_msg *msg = reply->message;
+ char *data = reply->message;
+
+ if (xcRB->resp_len < msg->fmt2.count1)
+ return -EINVAL;
+
+ /* Copy response CPRB to user */
+ if (copy_to_user((char *)xcRB->resp,
+ data + msg->fmt2.offset1, msg->fmt2.count1))
+ return -EFAULT;
+ xcRB->resp_len = msg->fmt2.count1;
+ return 0;
+}
+
static int convert_type86_rng(struct zcrypt_device *zdev,
struct ap_message *reply,
char *buffer)
* 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. */
}
}
default: /* Unknown response type, this should NEVER EVER happen */
xcRB->status = 0x0008044DL; /* HDD_InvalidParm */
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. */
}
}
+static int convert_response_ep11_xcrb(struct zcrypt_device *zdev,
+ struct ap_message *reply, struct ep11_urb *xcRB)
+{
+ struct type86_ep11_reply *msg = reply->message;
+
+ /* Response type byte is the second byte in the response. */
+ switch (((unsigned char *)reply->message)[1]) {
+ case TYPE82_RSP_CODE:
+ case TYPE87_RSP_CODE:
+ return convert_error(zdev, reply);
+ case TYPE86_RSP_CODE:
+ if (msg->hdr.reply_code)
+ return convert_error(zdev, reply);
+ if (msg->cprbx.cprb_ver_id == 0x04)
+ return convert_type86_ep11_xcrb(zdev, reply, xcRB);
+ /* Fall through, no break, incorrect cprb version is an unknown resp.*/
+ 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. */
+ }
+}
+
static int convert_response_rng(struct zcrypt_device *zdev,
struct ap_message *reply,
char *data)
* 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. */
}
}
complete(&(resp_type->work));
}
+/**
+ * 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_msgtype6_receive_ep11(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 response_type *resp_type =
+ (struct response_type *)msg->private;
+ struct type86_ep11_reply *t86r;
+ 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;
+ }
+ t86r = reply->message;
+ if (t86r->hdr.type == TYPE86_RSP_CODE &&
+ t86r->cprbx.cprb_ver_id == 0x04) {
+ switch (resp_type->type) {
+ case PCIXCC_RESPONSE_TYPE_EP11:
+ length = t86r->fmt2.offset1 + t86r->fmt2.count1;
+ length = min(MSGTYPE06_MAX_MSG_SIZE, length);
+ memcpy(msg->message, reply->message, length);
+ break;
+ default:
+ memcpy(msg->message, &error_reply, sizeof(error_reply));
+ }
+ } else {
+ memcpy(msg->message, reply->message, sizeof(error_reply));
+ }
+out:
+ complete(&(resp_type->work));
+}
+
static atomic_t zcrypt_step = ATOMIC_INIT(0);
/**
return rc;
}
+/**
+ * The request distributor calls this function if it picked the CEX4P
+ * device to handle a send_ep11_cprb request.
+ * @zdev: pointer to zcrypt_device structure that identifies the
+ * CEX4P device to the request distributor
+ * @xcRB: pointer to the ep11 user request block
+ */
+static long zcrypt_msgtype6_send_ep11_cprb(struct zcrypt_device *zdev,
+ struct ep11_urb *xcrb)
+{
+ struct ap_message ap_msg;
+ struct response_type resp_type = {
+ .type = PCIXCC_RESPONSE_TYPE_EP11,
+ };
+ int rc;
+
+ ap_init_message(&ap_msg);
+ ap_msg.message = kmalloc(MSGTYPE06_MAX_MSG_SIZE, GFP_KERNEL);
+ if (!ap_msg.message)
+ return -ENOMEM;
+ ap_msg.receive = zcrypt_msgtype6_receive_ep11;
+ ap_msg.psmid = (((unsigned long long) current->pid) << 32) +
+ atomic_inc_return(&zcrypt_step);
+ ap_msg.private = &resp_type;
+ rc = xcrb_msg_to_type6_ep11cprb_msgx(zdev, &ap_msg, xcrb);
+ if (rc)
+ goto out_free;
+ init_completion(&resp_type.work);
+ ap_queue_message(zdev->ap_dev, &ap_msg);
+ rc = wait_for_completion_interruptible(&resp_type.work);
+ if (rc == 0)
+ rc = convert_response_ep11_xcrb(zdev, &ap_msg, xcrb);
+ else /* Signal pending. */
+ ap_cancel_message(zdev->ap_dev, &ap_msg);
+
+out_free:
+ kzfree(ap_msg.message);
+ return rc;
+}
+
/**
* The request distributor calls this function if it picked the PCIXCC/CEX2C
* device to generate random data.
.rng = zcrypt_msgtype6_rng,
};
+static struct zcrypt_ops zcrypt_msgtype6_ep11_ops = {
+ .owner = THIS_MODULE,
+ .variant = MSGTYPE06_VARIANT_EP11,
+ .rsa_modexpo = NULL,
+ .rsa_modexpo_crt = NULL,
+ .send_ep11_cprb = zcrypt_msgtype6_send_ep11_cprb,
+};
+
int __init zcrypt_msgtype6_init(void)
{
zcrypt_msgtype_register(&zcrypt_msgtype6_norng_ops);
zcrypt_msgtype_register(&zcrypt_msgtype6_ops);
+ zcrypt_msgtype_register(&zcrypt_msgtype6_ep11_ops);
return 0;
}
{
zcrypt_msgtype_unregister(&zcrypt_msgtype6_norng_ops);
zcrypt_msgtype_unregister(&zcrypt_msgtype6_ops);
+ zcrypt_msgtype_unregister(&zcrypt_msgtype6_ep11_ops);
}
module_init(zcrypt_msgtype6_init);
#define MSGTYPE06_NAME "zcrypt_msgtype6"
#define MSGTYPE06_VARIANT_DEFAULT 0
#define MSGTYPE06_VARIANT_NORNG 1
+#define MSGTYPE06_VARIANT_EP11 2
#define MSGTYPE06_MAX_MSG_SIZE (12*1024)
} __packed;
#define TYPE86_RSP_CODE 0x86
+#define TYPE87_RSP_CODE 0x87
#define TYPE86_FMT2 0x02
struct type86_fmt2_ext {
* 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>
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);
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. */
}
}
* 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>
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;
/* 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. */
}
}
git.openpandora.org / pandora-kernel.git / commitdiff