/*
   *  ioctl.c
   *
   *  Copyright (C) 1995, 1996 by Volker Lendecke
   *  Copyright (C) 1997 by Volker Lendecke
   *
   *  Please add a note about your changes to smbfs in the ChangeLog file.
   */
  
  #include <linux/errno.h>
  #include <linux/fs.h>
  #include <linux/ioctl.h>
  #include <linux/time.h>
  #include <linux/mm.h>
  #include <linux/highuid.h>

  #include <linux/smp_lock.h>

  #include <linux/net.h>
  
  #include <linux/smb_fs.h>
  #include <linux/smb_mount.h>
  
  #include <asm/uaccess.h>
  
  #include "proto.h"

  long
  smb_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)

  {

  	struct smb_sb_info *server = server_from_inode(filp->f_path.dentry->d_inode);

  	struct smb_conn_opt opt;
  	int result = -EINVAL;

  	lock_kernel();

  	switch (cmd) {
  		uid16_t uid16;
  		uid_t uid32;
  	case SMB_IOC_GETMOUNTUID:
  		SET_UID(uid16, server->mnt->mounted_uid);
  		result = put_user(uid16, (uid16_t __user *) arg);
  		break;
  	case SMB_IOC_GETMOUNTUID32:
  		SET_UID(uid32, server->mnt->mounted_uid);
  		result = put_user(uid32, (uid_t __user *) arg);
  		break;
  
  	case SMB_IOC_NEWCONN:
  		/* arg is smb_conn_opt, or NULL if no connection was made */
  		if (!arg) {
  			result = 0;
  			smb_lock_server(server);
  			server->state = CONN_RETRIED;
  			printk(KERN_ERR "Connection attempt failed!  [%d]
  ",
  			       server->conn_error);
  			smbiod_flush(server);
  			smb_unlock_server(server);
  			break;
  		}
  
  		result = -EFAULT;
  		if (!copy_from_user(&opt, (void __user *)arg, sizeof(opt)))
  			result = smb_newconn(server, &opt);
  		break;
  	default:
  		break;
  	}

  	unlock_kernel();

  
  	return result;
  }