ioctl.c

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    1 /*
    2  *  ioctl.c
    3  *
    4  *  Copyright (C) 1995, 1996 by Volker Lendecke
    5  *  Copyright (C) 1997 by Volker Lendecke
    6  *
    7  *  Please add a note about your changes to smbfs in the ChangeLog file.
    8  */
    9 
   10 #include <linux/errno.h>
   11 #include <linux/fs.h>
   12 #include <linux/ioctl.h>
   13 #include <linux/time.h>
   14 #include <linux/mm.h>
   15 #include <linux/highuid.h>
   16 #include <linux/smp_lock.h>
   17 #include <linux/net.h>
   18 
   19 #include <linux/smb_fs.h>
   20 #include <linux/smb_mount.h>
   21 
   22 #include <asm/uaccess.h>
   23 
   24 #include "proto.h"
   25 
   26 long
   27 smb_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
   28 {
   29         struct smb_sb_info *server = server_from_inode(filp->f_path.dentry->d_inode);
   30         struct smb_conn_opt opt;
   31         int result = -EINVAL;
   32 
   33         lock_kernel();
   34         switch (cmd) {
   35                 uid16_t uid16;
   36                 uid_t uid32;
   37         case SMB_IOC_GETMOUNTUID:
   38                 SET_UID(uid16, server->mnt->mounted_uid);
   39                 result = put_user(uid16, (uid16_t __user *) arg);
   40                 break;
   41         case SMB_IOC_GETMOUNTUID32:
   42                 SET_UID(uid32, server->mnt->mounted_uid);
   43                 result = put_user(uid32, (uid_t __user *) arg);
   44                 break;
   45 
   46         case SMB_IOC_NEWCONN:
   47                 /* arg is smb_conn_opt, or NULL if no connection was made */
   48                 if (!arg) {
   49                         result = 0;
   50                         smb_lock_server(server);
   51                         server->state = CONN_RETRIED;
   52                         printk(KERN_ERR "Connection attempt failed!  [%d]\n",
   53                                server->conn_error);
   54                         smbiod_flush(server);
   55                         smb_unlock_server(server);
   56                         break;
   57                 }
   58 
   59                 result = -EFAULT;
   60                 if (!copy_from_user(&opt, (void __user *)arg, sizeof(opt)))
   61                         result = smb_newconn(server, &opt);
   62                 break;
   63         default:
   64                 break;
   65         }
   66         unlock_kernel();
   67 
   68         return result;
   69 }

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FreeBSD/Linux Kernel Cross Reference sys/fs/smbfs/ioctl.c

FreeBSD/Linux Kernel Cross Reference
sys/fs/smbfs/ioctl.c