---
 crypto/userspace/cryptodev_main.c |  130 +++++++++++++++++++++++++++++++++++++
 1 files changed, 130 insertions(+), 0 deletions(-)

diff --git a/crypto/userspace/cryptodev_main.c 
b/crypto/userspace/cryptodev_main.c
index a6712db..6ba9bd6 100644
--- a/crypto/userspace/cryptodev_main.c
+++ b/crypto/userspace/cryptodev_main.c
@@ -98,3 +98,133 @@ int __get_userbuf(uint8_t __user *addr, uint32_t len, int 
write,
        return 0;
 }
 
+/* ====== /dev/crypto ====== */
+
+static int
+cryptodev_open(struct inode *inode, struct file *filp)
+{
+       struct ncr_lists *ncr;
+       int ret;
+
+       ncr = ncr_init_lists();
+       if (ncr == NULL) {
+               return -ENOMEM;
+       }
+
+       ret = audit_log_crypto_op(AUDIT_CRYPTO_OP_CONTEXT_NEW, ncr->id, -1,
+                                 NULL, NULL, -1, NULL, 0, -1, NULL, 0);
+       if (ret < 0) {
+               ncr_deinit_lists(ncr);
+               return ret;
+       }
+
+       filp->private_data = ncr;
+       return 0;
+}
+
+static int
+cryptodev_release(struct inode *inode, struct file *filp)
+{
+       struct ncr_lists *ncr = filp->private_data;
+
+       if (ncr) {
+               audit_log_crypto_op(AUDIT_CRYPTO_OP_CONTEXT_DEL, ncr->id, -1,
+                                   NULL, NULL, -1, NULL, 0, -1, NULL, 0);
+               ncr_deinit_lists(ncr);
+               filp->private_data = NULL;
+       }
+
+       return 0;
+}
+
+static int
+cryptodev_ioctl(struct inode *inode, struct file *filp,
+               unsigned int cmd, unsigned long arg)
+{
+       void *ncr = filp->private_data;
+
+       if (unlikely(!ncr))
+               BUG();
+
+       return ncr_ioctl(ncr, cmd, arg);
+}
+
+/* compatibility code for 32bit userlands */
+#ifdef CONFIG_COMPAT
+
+static long
+cryptodev_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+       void *ncr = file->private_data;
+
+       if (unlikely(!ncr))
+               BUG();
+
+       return ncr_compat_ioctl(ncr, cmd, arg);
+}
+
+#endif /* CONFIG_COMPAT */
+
+static const struct file_operations cryptodev_fops = {
+       .owner = THIS_MODULE,
+       .open = cryptodev_open,
+       .release = cryptodev_release,
+       .ioctl = cryptodev_ioctl,
+#ifdef CONFIG_COMPAT
+       .compat_ioctl = cryptodev_compat_ioctl,
+#endif /* CONFIG_COMPAT */
+};
+
+static struct miscdevice cryptodev = {
+       .minor = MISC_DYNAMIC_MINOR,
+       .name = "crypto",
+       .fops = &cryptodev_fops,
+};
+
+static int __init
+cryptodev_register(void)
+{
+       int rc;
+
+       ncr_limits_init();
+       ncr_master_key_reset();
+       
+       rc = misc_register (&cryptodev);
+       if (unlikely(rc)) {
+               ncr_limits_deinit();
+               printk(KERN_ERR PFX "registration of /dev/crypto failed\n");
+               return rc;
+       }
+
+       return 0;
+}
+
+static void __exit
+cryptodev_deregister(void)
+{
+       misc_deregister(&cryptodev);
+       ncr_limits_deinit();
+}
+
+/* ====== Module init/exit ====== */
+static int __init init_cryptodev(void)
+{
+       int rc;
+
+       rc = cryptodev_register();
+       if (unlikely(rc))
+               return rc;
+
+       printk(KERN_INFO PFX "driver loaded.\n");
+
+       return 0;
+}
+
+static void __exit exit_cryptodev(void)
+{
+       cryptodev_deregister();
+       printk(KERN_INFO PFX "driver unloaded.\n");
+}
+
+module_init(init_cryptodev);
+module_exit(exit_cryptodev);
-- 
1.7.2.1

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