/*
* linux/drivers/s390/crypto/zcrypt_api.c
*
- * zcrypt 2.0.0
+ * zcrypt 2.1.0
*
* Copyright (C) 2001, 2006 IBM Corporation
* Author(s): Robert Burroughs
get_device(&zdev->ap_dev->device);
zdev->request_count++;
__zcrypt_decrease_preference(zdev);
- spin_unlock_bh(&zcrypt_device_lock);
if (try_module_get(zdev->ap_dev->drv->driver.owner)) {
+ spin_unlock_bh(&zcrypt_device_lock);
rc = zdev->ops->rsa_modexpo(zdev, mex);
+ spin_lock_bh(&zcrypt_device_lock);
module_put(zdev->ap_dev->drv->driver.owner);
}
else
rc = -EAGAIN;
- spin_lock_bh(&zcrypt_device_lock);
zdev->request_count--;
__zcrypt_increase_preference(zdev);
put_device(&zdev->ap_dev->device);
get_device(&zdev->ap_dev->device);
zdev->request_count++;
__zcrypt_decrease_preference(zdev);
- spin_unlock_bh(&zcrypt_device_lock);
if (try_module_get(zdev->ap_dev->drv->driver.owner)) {
+ spin_unlock_bh(&zcrypt_device_lock);
rc = zdev->ops->rsa_modexpo_crt(zdev, crt);
+ 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_send_cprb(struct ica_xcRB *xcRB)
+{
+ struct zcrypt_device *zdev;
+ int rc;
+
+ 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)
+ )
+ 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_cprb(zdev, xcRB);
+ spin_lock_bh(&zcrypt_device_lock);
module_put(zdev->ap_dev->drv->driver.owner);
}
else
rc = -EAGAIN;
- spin_lock_bh(&zcrypt_device_lock);
zdev->request_count--;
__zcrypt_increase_preference(zdev);
put_device(&zdev->ap_dev->device);
return rc;
return put_user(crt.outputdatalength, &ucrt->outputdatalength);
}
+ case ZSECSENDCPRB: {
+ struct ica_xcRB __user *uxcRB = (void __user *) arg;
+ struct ica_xcRB xcRB;
+ if (copy_from_user(&xcRB, uxcRB, sizeof(xcRB)))
+ return -EFAULT;
+ do {
+ rc = zcrypt_send_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);
return rc;
}
-long zcrypt_compat_ioctl(struct file *filp, unsigned int cmd,
+struct compat_ica_xcRB {
+ unsigned short agent_ID;
+ unsigned int user_defined;
+ unsigned short request_ID;
+ unsigned int request_control_blk_length;
+ unsigned char padding1[16 - sizeof (compat_uptr_t)];
+ compat_uptr_t request_control_blk_addr;
+ unsigned int request_data_length;
+ char padding2[16 - sizeof (compat_uptr_t)];
+ compat_uptr_t request_data_address;
+ unsigned int reply_control_blk_length;
+ char padding3[16 - sizeof (compat_uptr_t)];
+ compat_uptr_t reply_control_blk_addr;
+ unsigned int reply_data_length;
+ char padding4[16 - sizeof (compat_uptr_t)];
+ compat_uptr_t reply_data_addr;
+ unsigned short priority_window;
+ unsigned int status;
+} __attribute__((packed));
+
+static long trans_xcRB32(struct file *filp, unsigned int cmd,
+ unsigned long arg)
+{
+ struct compat_ica_xcRB __user *uxcRB32 = compat_ptr(arg);
+ struct compat_ica_xcRB xcRB32;
+ struct ica_xcRB xcRB64;
+ long rc;
+
+ if (copy_from_user(&xcRB32, uxcRB32, sizeof(xcRB32)))
+ return -EFAULT;
+ xcRB64.agent_ID = xcRB32.agent_ID;
+ xcRB64.user_defined = xcRB32.user_defined;
+ xcRB64.request_ID = xcRB32.request_ID;
+ xcRB64.request_control_blk_length =
+ xcRB32.request_control_blk_length;
+ xcRB64.request_control_blk_addr =
+ compat_ptr(xcRB32.request_control_blk_addr);
+ xcRB64.request_data_length =
+ xcRB32.request_data_length;
+ xcRB64.request_data_address =
+ compat_ptr(xcRB32.request_data_address);
+ xcRB64.reply_control_blk_length =
+ xcRB32.reply_control_blk_length;
+ xcRB64.reply_control_blk_addr =
+ compat_ptr(xcRB32.reply_control_blk_addr);
+ xcRB64.reply_data_length = xcRB32.reply_data_length;
+ xcRB64.reply_data_addr =
+ compat_ptr(xcRB32.reply_data_addr);
+ xcRB64.priority_window = xcRB32.priority_window;
+ xcRB64.status = xcRB32.status;
+ do {
+ rc = zcrypt_send_cprb(&xcRB64);
+ } while (rc == -EAGAIN);
+ xcRB32.reply_control_blk_length = xcRB64.reply_control_blk_length;
+ xcRB32.reply_data_length = xcRB64.reply_data_length;
+ xcRB32.status = xcRB64.status;
+ if (copy_to_user(uxcRB32, &xcRB32, sizeof(xcRB32)))
+ return -EFAULT;
+ return rc;
+}
+
+static long zcrypt_compat_ioctl(struct file *filp, unsigned int cmd,
unsigned long arg)
{
if (cmd == ICARSAMODEXPO)
return trans_modexpo32(filp, cmd, arg);
if (cmd == ICARSACRT)
return trans_modexpo_crt32(filp, cmd, arg);
+ if (cmd == ZSECSENDCPRB)
+ return trans_xcRB32(filp, cmd, arg);
return zcrypt_unlocked_ioctl(filp, cmd, arg);
}
#endif
/**
* Misc device file operations.
*/
-static struct file_operations zcrypt_fops = {
+static const struct file_operations zcrypt_fops = {
.owner = THIS_MODULE,
.read = zcrypt_read,
.write = zcrypt_write,
*/
static struct proc_dir_entry *zcrypt_entry;
-static inline int sprintcl(unsigned char *outaddr, unsigned char *addr,
- unsigned int len)
+static int sprintcl(unsigned char *outaddr, unsigned char *addr,
+ unsigned int len)
{
int hl, i;
return hl;
}
-static inline int sprintrw(unsigned char *outaddr, unsigned char *addr,
- unsigned int len)
+static int sprintrw(unsigned char *outaddr, unsigned char *addr,
+ unsigned int len)
{
int hl, inl, c, cx;
return hl;
}
-static inline int sprinthx(unsigned char *title, unsigned char *outaddr,
- unsigned char *addr, unsigned int len)
+static int sprinthx(unsigned char *title, unsigned char *outaddr,
+ unsigned char *addr, unsigned int len)
{
int hl, inl, r, rx;
return hl;
}
-static inline int sprinthx4(unsigned char *title, unsigned char *outaddr,
- unsigned int *array, unsigned int len)
+static int sprinthx4(unsigned char *title, unsigned char *outaddr,
+ unsigned int *array, unsigned int len)
{
int hl, r;
zcrypt_qdepth_mask(workarea);
len += sprinthx("Waiting work element counts",
resp_buff+len, workarea, AP_DEVICES);
- zcrypt_perdev_reqcnt((unsigned int *) workarea);
+ zcrypt_perdev_reqcnt((int *) workarea);
len += sprinthx4("Per-device successfully completed request counts",
resp_buff+len,(unsigned int *) workarea, AP_DEVICES);
*eof = 1;
rc = -ENOMEM;
goto out_misc;
}
- zcrypt_entry->nlink = 1;
zcrypt_entry->data = NULL;
zcrypt_entry->read_proc = zcrypt_status_read;
zcrypt_entry->write_proc = zcrypt_status_write;
git.openpandora.org / pandora-kernel.git / blobdiff