fs/smbfs/ioctl.c

   1 /*
   2  *  ioctl.c
   3  *
   4  *  Copyright (C) 1995, 1996 by Volker Lendecke
   5  *  Copyright (C) 1997 by Volker Lendecke
   6  *
   7  */
   8
   9 #include <linux/errno.h>
  10 #include <linux/fs.h>
  11 #include <linux/ioctl.h>
  12 #include <linux/sched.h>
  13 #include <linux/mm.h>
  14
  15 #include <linux/smb_fs.h>
  16 #include <linux/smb_mount.h>
  17
  18 #include <asm/uaccess.h>
  19
  20 int
  21 smb_ioctl(struct inode *inode, struct file *filp,
  22           unsigned int cmd, unsigned long arg)
  23 {
  24         struct smb_sb_info *server = SMB_SERVER(inode);
  25         int result = -EINVAL;
  26
  27         switch (cmd)
  28         {
  29         case SMB_IOC_GETMOUNTUID:
  30                 result = put_user(server->mnt->mounted_uid, (uid_t *) arg);
  31                 break;
  32
  33         case SMB_IOC_NEWCONN:
  34         {
  35                 struct smb_conn_opt opt;
  36
  37                 if (arg)
  38                 {
  39                         result = -EFAULT;
  40                         if (!copy_from_user(&opt, (void *)arg, sizeof(opt)))
  41                                 result = smb_newconn(server, &opt);
  42                 }
  43                 else
  44                 {
  45 #if 0
  46                         /* obsolete option ... print a warning */
  47                         printk("SMBFS: ioctl deprecated, please upgrade "
  48                                 "smbfs package\n");
  49 #endif
  50                         result = 0;
  51                 }
  52                 break;
  53         }
  54         default:
  55         }
  56         return result;
  57 }