[linux.git] / fs / smbfs / ioctl.c

/*
 *  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]\n",
			       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;
}
Commit	Line	Data
1da177e4 LT	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>
ce8273a5	16	#include <linux/smp_lock.h>
1da177e4 LT	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
ce8273a5 AB	26	long
ce8273a5 AB	27	smb_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
1da177e4	28	{
ce8273a5	29	struct smb_sb_info *server = server_from_inode(filp->f_path.dentry->d_inode);
1da177e4 LT	30	struct smb_conn_opt opt;
	31	int result = -EINVAL;
	32
ce8273a5	33	lock_kernel();
1da177e4 LT	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	}
ce8273a5	66	unlock_kernel();
1da177e4 LT	67
	68	return result;
	69	}