// SPDX-License-Identifier: GPL-2.0

  /*
   * ioctl32.c: Conversion between 32bit and 64bit native ioctls.
   *
   * Copyright (C) 1997-2000  Jakub Jelinek  (jakub@redhat.com)
   * Copyright (C) 1998  Eddie C. Dost  (ecd@skynet.be)
   * Copyright (C) 2001,2002  Andi Kleen, SuSE Labs 

   * Copyright (C) 2003       Pavel Machek (pavel@ucw.cz)

   *
   * These routines maintain argument size conversion between 32bit and 64bit
   * ioctls.
   */

  #include <linux/joystick.h>

  #include <linux/types.h>
  #include <linux/compat.h>
  #include <linux/kernel.h>

  #include <linux/capability.h>

  #include <linux/compiler.h>
  #include <linux/sched.h>
  #include <linux/smp.h>

  #include <linux/ioctl.h>
  #include <linux/if.h>

  #include <linux/raid/md_u.h>

  #include <linux/falloc.h>

  #include <linux/file.h>

  #include <linux/ppp-ioctl.h>

  #include <linux/if_pppox.h>
  #include <linux/mtio.h>

  #include <linux/tty.h>
  #include <linux/vt_kern.h>

  #include <linux/raw.h>

  #include <linux/blkdev.h>

  #include <linux/rtc.h>
  #include <linux/pci.h>

  #include <linux/serial.h>

  #include <linux/ctype.h>

  #include <linux/syscalls.h>

  #include <linux/gfp.h>

  #include <linux/cec.h>

  #include "internal.h"

  #include <net/bluetooth/bluetooth.h>

  #include <net/bluetooth/hci_sock.h>

  #include <net/bluetooth/rfcomm.h>
  
  #include <linux/capi.h>

  #include <linux/gigaset_dev.h>

  #ifdef CONFIG_BLOCK

  #include <linux/cdrom.h>
  #include <linux/fd.h>

  #include <scsi/scsi.h>

  #include <scsi/scsi_ioctl.h>

  #include <scsi/sg.h>

  #endif

  #include <linux/uaccess.h>

  #include <linux/watchdog.h>

  #include <linux/soundcard.h>

  
  #include <linux/hiddev.h>

  #include <linux/sort.h>

  #ifdef CONFIG_SPARC

  #include <linux/fb.h>

  #include <asm/fbio.h>
  #endif

  #define convert_in_user(srcptr, dstptr)			\
  ({							\
  	typeof(*srcptr) val;				\
  							\
  	get_user(val, srcptr) || put_user(val, dstptr);	\
  })

  static int do_ioctl(struct file *file, unsigned int cmd, unsigned long arg)

  {
  	int err;
  
  	err = security_file_ioctl(file, cmd, arg);
  	if (err)
  		return err;

  	return vfs_ioctl(file, cmd, arg);

  }

  #ifdef CONFIG_BLOCK

  typedef struct sg_io_hdr32 {
  	compat_int_t interface_id;	/* [i] 'S' for SCSI generic (required) */
  	compat_int_t dxfer_direction;	/* [i] data transfer direction  */
  	unsigned char cmd_len;		/* [i] SCSI command length ( <= 16 bytes) */
  	unsigned char mx_sb_len;		/* [i] max length to write to sbp */
  	unsigned short iovec_count;	/* [i] 0 implies no scatter gather */
  	compat_uint_t dxfer_len;		/* [i] byte count of data transfer */
  	compat_uint_t dxferp;		/* [i], [*io] points to data transfer memory
  					      or scatter gather list */
  	compat_uptr_t cmdp;		/* [i], [*i] points to command to perform */
  	compat_uptr_t sbp;		/* [i], [*o] points to sense_buffer memory */
  	compat_uint_t timeout;		/* [i] MAX_UINT->no timeout (unit: millisec) */
  	compat_uint_t flags;		/* [i] 0 -> default, see SG_FLAG... */
  	compat_int_t pack_id;		/* [i->o] unused internally (normally) */
  	compat_uptr_t usr_ptr;		/* [i->o] unused internally */
  	unsigned char status;		/* [o] scsi status */
  	unsigned char masked_status;	/* [o] shifted, masked scsi status */
  	unsigned char msg_status;		/* [o] messaging level data (optional) */
  	unsigned char sb_len_wr;		/* [o] byte count actually written to sbp */
  	unsigned short host_status;	/* [o] errors from host adapter */
  	unsigned short driver_status;	/* [o] errors from software driver */
  	compat_int_t resid;		/* [o] dxfer_len - actual_transferred */
  	compat_uint_t duration;		/* [o] time taken by cmd (unit: millisec) */
  	compat_uint_t info;		/* [o] auxiliary information */
  } sg_io_hdr32_t;  /* 64 bytes long (on sparc32) */
  
  typedef struct sg_iovec32 {
  	compat_uint_t iov_base;
  	compat_uint_t iov_len;
  } sg_iovec32_t;
  
  static int sg_build_iovec(sg_io_hdr_t __user *sgio, void __user *dxferp, u16 iovec_count)
  {
  	sg_iovec_t __user *iov = (sg_iovec_t __user *) (sgio + 1);
  	sg_iovec32_t __user *iov32 = dxferp;
  	int i;
  
  	for (i = 0; i < iovec_count; i++) {
  		u32 base, len;
  
  		if (get_user(base, &iov32[i].iov_base) ||
  		    get_user(len, &iov32[i].iov_len) ||
  		    put_user(compat_ptr(base), &iov[i].iov_base) ||
  		    put_user(len, &iov[i].iov_len))
  			return -EFAULT;
  	}
  
  	if (put_user(iov, &sgio->dxferp))
  		return -EFAULT;
  	return 0;
  }

  static int sg_ioctl_trans(struct file *file, unsigned int cmd,

  			sg_io_hdr32_t __user *sgio32)

  {
  	sg_io_hdr_t __user *sgio;

  	u16 iovec_count;
  	u32 data;
  	void __user *dxferp;
  	int err;

  	int interface_id;
  
  	if (get_user(interface_id, &sgio32->interface_id))
  		return -EFAULT;
  	if (interface_id != 'S')

  		return do_ioctl(file, cmd, (unsigned long)sgio32);

  	if (get_user(iovec_count, &sgio32->iovec_count))
  		return -EFAULT;
  
  	{
  		void __user *top = compat_alloc_user_space(0);
  		void __user *new = compat_alloc_user_space(sizeof(sg_io_hdr_t) +
  				       (iovec_count * sizeof(sg_iovec_t)));
  		if (new > top)
  			return -EINVAL;
  
  		sgio = new;
  	}
  
  	/* Ok, now construct.  */
  	if (copy_in_user(&sgio->interface_id, &sgio32->interface_id,
  			 (2 * sizeof(int)) +
  			 (2 * sizeof(unsigned char)) +
  			 (1 * sizeof(unsigned short)) +
  			 (1 * sizeof(unsigned int))))
  		return -EFAULT;
  
  	if (get_user(data, &sgio32->dxferp))
  		return -EFAULT;
  	dxferp = compat_ptr(data);
  	if (iovec_count) {
  		if (sg_build_iovec(sgio, dxferp, iovec_count))
  			return -EFAULT;
  	} else {
  		if (put_user(dxferp, &sgio->dxferp))
  			return -EFAULT;
  	}
  
  	{
  		unsigned char __user *cmdp;
  		unsigned char __user *sbp;
  
  		if (get_user(data, &sgio32->cmdp))
  			return -EFAULT;
  		cmdp = compat_ptr(data);
  
  		if (get_user(data, &sgio32->sbp))
  			return -EFAULT;
  		sbp = compat_ptr(data);
  
  		if (put_user(cmdp, &sgio->cmdp) ||
  		    put_user(sbp, &sgio->sbp))
  			return -EFAULT;
  	}
  
  	if (copy_in_user(&sgio->timeout, &sgio32->timeout,
  			 3 * sizeof(int)))
  		return -EFAULT;
  
  	if (get_user(data, &sgio32->usr_ptr))
  		return -EFAULT;
  	if (put_user(compat_ptr(data), &sgio->usr_ptr))
  		return -EFAULT;

  	err = do_ioctl(file, cmd, (unsigned long) sgio);

  
  	if (err >= 0) {
  		void __user *datap;
  
  		if (copy_in_user(&sgio32->pack_id, &sgio->pack_id,
  				 sizeof(int)) ||
  		    get_user(datap, &sgio->usr_ptr) ||
  		    put_user((u32)(unsigned long)datap,
  			     &sgio32->usr_ptr) ||
  		    copy_in_user(&sgio32->status, &sgio->status,
  				 (4 * sizeof(unsigned char)) +
  				 (2 * sizeof(unsigned short)) +
  				 (3 * sizeof(int))))
  			err = -EFAULT;
  	}
  
  	return err;
  }

  struct compat_sg_req_info { /* used by SG_GET_REQUEST_TABLE ioctl() */
  	char req_state;
  	char orphan;
  	char sg_io_owned;
  	char problem;
  	int pack_id;
  	compat_uptr_t usr_ptr;
  	unsigned int duration;
  	int unused;
  };

  static int sg_grt_trans(struct file *file,

  		unsigned int cmd, struct compat_sg_req_info __user *o)

  {
  	int err, i;

  	sg_req_info_t __user *r;

  	r = compat_alloc_user_space(sizeof(sg_req_info_t)*SG_MAX_QUEUE);

  	err = do_ioctl(file, cmd, (unsigned long)r);

  	if (err < 0)
  		return err;
  	for (i = 0; i < SG_MAX_QUEUE; i++) {
  		void __user *ptr;
  		int d;
  
  		if (copy_in_user(o + i, r + i, offsetof(sg_req_info_t, usr_ptr)) ||
  		    get_user(ptr, &r[i].usr_ptr) ||
  		    get_user(d, &r[i].duration) ||
  		    put_user((u32)(unsigned long)(ptr), &o[i].usr_ptr) ||
  		    put_user(d, &o[i].duration))
  			return -EFAULT;
  	}
  	return err;
  }

  #endif /* CONFIG_BLOCK */

  struct sock_fprog32 {
  	unsigned short	len;
  	compat_caddr_t	filter;
  };
  
  #define PPPIOCSPASS32	_IOW('t', 71, struct sock_fprog32)
  #define PPPIOCSACTIVE32	_IOW('t', 70, struct sock_fprog32)

  static int ppp_sock_fprog_ioctl_trans(struct file *file,

  		unsigned int cmd, struct sock_fprog32 __user *u_fprog32)

  {

  	struct sock_fprog __user *u_fprog64 = compat_alloc_user_space(sizeof(struct sock_fprog));
  	void __user *fptr64;
  	u32 fptr32;
  	u16 flen;
  
  	if (get_user(flen, &u_fprog32->len) ||
  	    get_user(fptr32, &u_fprog32->filter))
  		return -EFAULT;
  
  	fptr64 = compat_ptr(fptr32);
  
  	if (put_user(flen, &u_fprog64->len) ||
  	    put_user(fptr64, &u_fprog64->filter))
  		return -EFAULT;
  
  	if (cmd == PPPIOCSPASS32)
  		cmd = PPPIOCSPASS;
  	else
  		cmd = PPPIOCSACTIVE;

  	return do_ioctl(file, cmd, (unsigned long) u_fprog64);

  }
  
  struct ppp_option_data32 {
  	compat_caddr_t	ptr;
  	u32			length;
  	compat_int_t		transmit;
  };
  #define PPPIOCSCOMPRESS32	_IOW('t', 77, struct ppp_option_data32)
  
  struct ppp_idle32 {
  	compat_time_t xmit_idle;
  	compat_time_t recv_idle;
  };
  #define PPPIOCGIDLE32		_IOR('t', 63, struct ppp_idle32)

  static int ppp_gidle(struct file *file, unsigned int cmd,

  		struct ppp_idle32 __user *idle32)

  {
  	struct ppp_idle __user *idle;

  	__kernel_time_t xmit, recv;
  	int err;
  
  	idle = compat_alloc_user_space(sizeof(*idle));

  	err = do_ioctl(file, PPPIOCGIDLE, (unsigned long) idle);

  
  	if (!err) {
  		if (get_user(xmit, &idle->xmit_idle) ||
  		    get_user(recv, &idle->recv_idle) ||
  		    put_user(xmit, &idle32->xmit_idle) ||
  		    put_user(recv, &idle32->recv_idle))
  			err = -EFAULT;
  	}
  	return err;
  }

  static int ppp_scompress(struct file *file, unsigned int cmd,

  	struct ppp_option_data32 __user *odata32)

  {
  	struct ppp_option_data __user *odata;

  	__u32 data;
  	void __user *datap;
  
  	odata = compat_alloc_user_space(sizeof(*odata));

  
  	if (get_user(data, &odata32->ptr))
  		return -EFAULT;
  
  	datap = compat_ptr(data);
  	if (put_user(datap, &odata->ptr))
  		return -EFAULT;
  
  	if (copy_in_user(&odata->length, &odata32->length,
  			 sizeof(__u32) + sizeof(int)))
  		return -EFAULT;

  	return do_ioctl(file, PPPIOCSCOMPRESS, (unsigned long) odata);

  }

  #ifdef CONFIG_BLOCK

  struct mtget32 {
  	compat_long_t	mt_type;
  	compat_long_t	mt_resid;
  	compat_long_t	mt_dsreg;
  	compat_long_t	mt_gstat;
  	compat_long_t	mt_erreg;
  	compat_daddr_t	mt_fileno;
  	compat_daddr_t	mt_blkno;
  };
  #define MTIOCGET32	_IOR('m', 2, struct mtget32)
  
  struct mtpos32 {
  	compat_long_t	mt_blkno;
  };
  #define MTIOCPOS32	_IOR('m', 3, struct mtpos32)

  static int mt_ioctl_trans(struct file *file,

  		unsigned int cmd, void __user *argp)

  {

  	/* NULL initialization to make gcc shut up */
  	struct mtget __user *get = NULL;

  	struct mtget32 __user *umget32;

  	struct mtpos __user *pos = NULL;

  	struct mtpos32 __user *upos32;
  	unsigned long kcmd;
  	void *karg;
  	int err = 0;
  
  	switch(cmd) {
  	case MTIOCPOS32:
  		kcmd = MTIOCPOS;

  		pos = compat_alloc_user_space(sizeof(*pos));
  		karg = pos;

  		break;

  	default:	/* MTIOCGET32 */

  		kcmd = MTIOCGET;

  		get = compat_alloc_user_space(sizeof(*get));
  		karg = get;

  		break;

  	}

  	if (karg == NULL)
  		return -EFAULT;

  	err = do_ioctl(file, kcmd, (unsigned long)karg);

  	if (err)
  		return err;
  	switch (cmd) {
  	case MTIOCPOS32:

  		upos32 = argp;

  		err = convert_in_user(&pos->mt_blkno, &upos32->mt_blkno);

  		break;
  	case MTIOCGET32:

  		umget32 = argp;

  		err = convert_in_user(&get->mt_type, &umget32->mt_type);
  		err |= convert_in_user(&get->mt_resid, &umget32->mt_resid);
  		err |= convert_in_user(&get->mt_dsreg, &umget32->mt_dsreg);
  		err |= convert_in_user(&get->mt_gstat, &umget32->mt_gstat);
  		err |= convert_in_user(&get->mt_erreg, &umget32->mt_erreg);
  		err |= convert_in_user(&get->mt_fileno, &umget32->mt_fileno);
  		err |= convert_in_user(&get->mt_blkno, &umget32->mt_blkno);

  		break;
  	}
  	return err ? -EFAULT: 0;
  }

  #endif /* CONFIG_BLOCK */

  /* Bluetooth ioctls */

  #define HCIUARTSETPROTO		_IOW('U', 200, int)
  #define HCIUARTGETPROTO		_IOR('U', 201, int)
  #define HCIUARTGETDEVICE	_IOR('U', 202, int)

  #define HCIUARTSETFLAGS		_IOW('U', 203, int)
  #define HCIUARTGETFLAGS		_IOR('U', 204, int)

  #define RTC_IRQP_READ32		_IOR('p', 0x0b, compat_ulong_t)
  #define RTC_IRQP_SET32		_IOW('p', 0x0c, compat_ulong_t)
  #define RTC_EPOCH_READ32	_IOR('p', 0x0d, compat_ulong_t)
  #define RTC_EPOCH_SET32		_IOW('p', 0x0e, compat_ulong_t)

  static int rtc_ioctl(struct file *file,

  		unsigned cmd, void __user *argp)

  {

  	unsigned long __user *valp = compat_alloc_user_space(sizeof(*valp));

  	int ret;

  	if (valp == NULL)
  		return -EFAULT;

  	switch (cmd) {
  	case RTC_IRQP_READ32:
  	case RTC_EPOCH_READ32:

  		ret = do_ioctl(file, (cmd == RTC_IRQP_READ32) ?

  					RTC_IRQP_READ : RTC_EPOCH_READ,

  					(unsigned long)valp);

  		if (ret)
  			return ret;

  		return convert_in_user(valp, (unsigned int __user *)argp);

  	case RTC_IRQP_SET32:

  		return do_ioctl(file, RTC_IRQP_SET, (unsigned long)argp);

  	case RTC_EPOCH_SET32:

  		return do_ioctl(file, RTC_EPOCH_SET, (unsigned long)argp);

  	}

  
  	return -ENOIOCTLCMD;

  }

  /* on ia32 l_start is on a 32-bit boundary */
  #if defined(CONFIG_IA64) || defined(CONFIG_X86_64)
  struct space_resv_32 {
  	__s16		l_type;
  	__s16		l_whence;
  	__s64		l_start	__attribute__((packed));
  			/* len == 0 means until end of file */
  	__s64		l_len __attribute__((packed));
  	__s32		l_sysid;
  	__u32		l_pid;
  	__s32		l_pad[4];	/* reserve area */
  };
  
  #define FS_IOC_RESVSP_32		_IOW ('X', 40, struct space_resv_32)
  #define FS_IOC_RESVSP64_32	_IOW ('X', 42, struct space_resv_32)
  
  /* just account for different alignment */

  static int compat_ioctl_preallocate(struct file *file,
  			struct space_resv_32    __user *p32)

  {

  	struct space_resv	__user *p = compat_alloc_user_space(sizeof(*p));
  
  	if (copy_in_user(&p->l_type,	&p32->l_type,	sizeof(s16)) ||
  	    copy_in_user(&p->l_whence,	&p32->l_whence, sizeof(s16)) ||
  	    copy_in_user(&p->l_start,	&p32->l_start,	sizeof(s64)) ||
  	    copy_in_user(&p->l_len,	&p32->l_len,	sizeof(s64)) ||
  	    copy_in_user(&p->l_sysid,	&p32->l_sysid,	sizeof(s32)) ||
  	    copy_in_user(&p->l_pid,	&p32->l_pid,	sizeof(u32)) ||
  	    copy_in_user(&p->l_pad,	&p32->l_pad,	4*sizeof(u32)))
  		return -EFAULT;
  
  	return ioctl_preallocate(file, p);
  }
  #endif

  /*
   * simple reversible transform to make our table more evenly
   * distributed after sorting.
   */
  #define XFORM(i) (((i) ^ ((i) << 27) ^ ((i) << 17)) & 0xffffffff)

  #define COMPATIBLE_IOCTL(cmd) XFORM((u32)cmd),

  /* ioctl should not be warned about even if it's not implemented.
     Valid reasons to use this:
     - It is implemented with ->compat_ioctl on some device, but programs
     call it on others too.
     - The ioctl is not implemented in the native kernel, but programs
     call it commonly anyways.
     Most other reasons are not valid. */
  #define IGNORE_IOCTL(cmd) COMPATIBLE_IOCTL(cmd)

  static unsigned int ioctl_pointer[] = {

  /* compatible ioctls first */

  /* Little t */

  COMPATIBLE_IOCTL(TIOCOUTQ)

  /* Little f */
  COMPATIBLE_IOCTL(FIOCLEX)
  COMPATIBLE_IOCTL(FIONCLEX)
  COMPATIBLE_IOCTL(FIOASYNC)
  COMPATIBLE_IOCTL(FIONBIO)
  COMPATIBLE_IOCTL(FIONREAD)  /* This is also TIOCINQ */

  COMPATIBLE_IOCTL(FS_IOC_FIEMAP)

  /* 0x00 */
  COMPATIBLE_IOCTL(FIBMAP)
  COMPATIBLE_IOCTL(FIGETBSZ)

  /* 'X' - originally XFS but some now in the VFS */
  COMPATIBLE_IOCTL(FIFREEZE)
  COMPATIBLE_IOCTL(FITHAW)

  COMPATIBLE_IOCTL(FITRIM)

  #ifdef CONFIG_BLOCK

  /* Big S */
  COMPATIBLE_IOCTL(SCSI_IOCTL_GET_IDLUN)
  COMPATIBLE_IOCTL(SCSI_IOCTL_DOORLOCK)
  COMPATIBLE_IOCTL(SCSI_IOCTL_DOORUNLOCK)
  COMPATIBLE_IOCTL(SCSI_IOCTL_TEST_UNIT_READY)
  COMPATIBLE_IOCTL(SCSI_IOCTL_GET_BUS_NUMBER)
  COMPATIBLE_IOCTL(SCSI_IOCTL_SEND_COMMAND)
  COMPATIBLE_IOCTL(SCSI_IOCTL_PROBE_HOST)
  COMPATIBLE_IOCTL(SCSI_IOCTL_GET_PCI)

  #endif

  /* Big V (don't complain on serial console) */
  IGNORE_IOCTL(VT_OPENQRY)
  IGNORE_IOCTL(VT_GETMODE)

  /* Little p (/dev/rtc, /dev/envctrl, etc.) */
  COMPATIBLE_IOCTL(RTC_AIE_ON)
  COMPATIBLE_IOCTL(RTC_AIE_OFF)
  COMPATIBLE_IOCTL(RTC_UIE_ON)
  COMPATIBLE_IOCTL(RTC_UIE_OFF)
  COMPATIBLE_IOCTL(RTC_PIE_ON)
  COMPATIBLE_IOCTL(RTC_PIE_OFF)
  COMPATIBLE_IOCTL(RTC_WIE_ON)
  COMPATIBLE_IOCTL(RTC_WIE_OFF)
  COMPATIBLE_IOCTL(RTC_ALM_SET)
  COMPATIBLE_IOCTL(RTC_ALM_READ)
  COMPATIBLE_IOCTL(RTC_RD_TIME)
  COMPATIBLE_IOCTL(RTC_SET_TIME)
  COMPATIBLE_IOCTL(RTC_WKALM_SET)
  COMPATIBLE_IOCTL(RTC_WKALM_RD)
  /*
   * These two are only for the sbus rtc driver, but
   * hwclock tries them on every rtc device first when
   * running on sparc.  On other architectures the entries
   * are useless but harmless.
   */
  COMPATIBLE_IOCTL(_IOR('p', 20, int[7])) /* RTCGET */
  COMPATIBLE_IOCTL(_IOW('p', 21, int[7])) /* RTCSET */
  /* Little m */
  COMPATIBLE_IOCTL(MTIOCTOP)
  /* Socket level stuff */
  COMPATIBLE_IOCTL(FIOQSIZE)

  #ifdef CONFIG_BLOCK

  /* md calls this on random blockdevs */
  IGNORE_IOCTL(RAID_VERSION)

  /* qemu/qemu-img might call these two on plain files for probing */
  IGNORE_IOCTL(CDROM_DRIVE_STATUS)
  IGNORE_IOCTL(FDGETPRM32)

  /* SG stuff */
  COMPATIBLE_IOCTL(SG_SET_TIMEOUT)
  COMPATIBLE_IOCTL(SG_GET_TIMEOUT)
  COMPATIBLE_IOCTL(SG_EMULATED_HOST)

  COMPATIBLE_IOCTL(SG_GET_TRANSFORM)
  COMPATIBLE_IOCTL(SG_SET_RESERVED_SIZE)
  COMPATIBLE_IOCTL(SG_GET_RESERVED_SIZE)
  COMPATIBLE_IOCTL(SG_GET_SCSI_ID)
  COMPATIBLE_IOCTL(SG_SET_FORCE_LOW_DMA)
  COMPATIBLE_IOCTL(SG_GET_LOW_DMA)
  COMPATIBLE_IOCTL(SG_SET_FORCE_PACK_ID)
  COMPATIBLE_IOCTL(SG_GET_PACK_ID)
  COMPATIBLE_IOCTL(SG_GET_NUM_WAITING)
  COMPATIBLE_IOCTL(SG_SET_DEBUG)
  COMPATIBLE_IOCTL(SG_GET_SG_TABLESIZE)
  COMPATIBLE_IOCTL(SG_GET_COMMAND_Q)
  COMPATIBLE_IOCTL(SG_SET_COMMAND_Q)
  COMPATIBLE_IOCTL(SG_GET_VERSION_NUM)
  COMPATIBLE_IOCTL(SG_NEXT_CMD_LEN)
  COMPATIBLE_IOCTL(SG_SCSI_RESET)
  COMPATIBLE_IOCTL(SG_GET_REQUEST_TABLE)
  COMPATIBLE_IOCTL(SG_SET_KEEP_ORPHAN)
  COMPATIBLE_IOCTL(SG_GET_KEEP_ORPHAN)

  #endif

  /* PPP stuff */
  COMPATIBLE_IOCTL(PPPIOCGFLAGS)
  COMPATIBLE_IOCTL(PPPIOCSFLAGS)
  COMPATIBLE_IOCTL(PPPIOCGASYNCMAP)
  COMPATIBLE_IOCTL(PPPIOCSASYNCMAP)
  COMPATIBLE_IOCTL(PPPIOCGUNIT)
  COMPATIBLE_IOCTL(PPPIOCGRASYNCMAP)
  COMPATIBLE_IOCTL(PPPIOCSRASYNCMAP)
  COMPATIBLE_IOCTL(PPPIOCGMRU)
  COMPATIBLE_IOCTL(PPPIOCSMRU)
  COMPATIBLE_IOCTL(PPPIOCSMAXCID)
  COMPATIBLE_IOCTL(PPPIOCGXASYNCMAP)
  COMPATIBLE_IOCTL(PPPIOCSXASYNCMAP)
  COMPATIBLE_IOCTL(PPPIOCXFERUNIT)
  /* PPPIOCSCOMPRESS is translated */
  COMPATIBLE_IOCTL(PPPIOCGNPMODE)
  COMPATIBLE_IOCTL(PPPIOCSNPMODE)
  COMPATIBLE_IOCTL(PPPIOCGDEBUG)
  COMPATIBLE_IOCTL(PPPIOCSDEBUG)
  /* PPPIOCSPASS is translated */
  /* PPPIOCSACTIVE is translated */
  /* PPPIOCGIDLE is translated */
  COMPATIBLE_IOCTL(PPPIOCNEWUNIT)
  COMPATIBLE_IOCTL(PPPIOCATTACH)
  COMPATIBLE_IOCTL(PPPIOCDETACH)
  COMPATIBLE_IOCTL(PPPIOCSMRRU)
  COMPATIBLE_IOCTL(PPPIOCCONNECT)
  COMPATIBLE_IOCTL(PPPIOCDISCONN)
  COMPATIBLE_IOCTL(PPPIOCATTCHAN)
  COMPATIBLE_IOCTL(PPPIOCGCHAN)

  COMPATIBLE_IOCTL(PPPIOCGL2TPSTATS)

  /* Big A */
  /* sparc only */
  /* Big Q for sound/OSS */
  COMPATIBLE_IOCTL(SNDCTL_SEQ_RESET)
  COMPATIBLE_IOCTL(SNDCTL_SEQ_SYNC)
  COMPATIBLE_IOCTL(SNDCTL_SYNTH_INFO)
  COMPATIBLE_IOCTL(SNDCTL_SEQ_CTRLRATE)
  COMPATIBLE_IOCTL(SNDCTL_SEQ_GETOUTCOUNT)
  COMPATIBLE_IOCTL(SNDCTL_SEQ_GETINCOUNT)
  COMPATIBLE_IOCTL(SNDCTL_SEQ_PERCMODE)
  COMPATIBLE_IOCTL(SNDCTL_FM_LOAD_INSTR)
  COMPATIBLE_IOCTL(SNDCTL_SEQ_TESTMIDI)
  COMPATIBLE_IOCTL(SNDCTL_SEQ_RESETSAMPLES)
  COMPATIBLE_IOCTL(SNDCTL_SEQ_NRSYNTHS)
  COMPATIBLE_IOCTL(SNDCTL_SEQ_NRMIDIS)
  COMPATIBLE_IOCTL(SNDCTL_MIDI_INFO)
  COMPATIBLE_IOCTL(SNDCTL_SEQ_THRESHOLD)
  COMPATIBLE_IOCTL(SNDCTL_SYNTH_MEMAVL)
  COMPATIBLE_IOCTL(SNDCTL_FM_4OP_ENABLE)
  COMPATIBLE_IOCTL(SNDCTL_SEQ_PANIC)
  COMPATIBLE_IOCTL(SNDCTL_SEQ_OUTOFBAND)
  COMPATIBLE_IOCTL(SNDCTL_SEQ_GETTIME)
  COMPATIBLE_IOCTL(SNDCTL_SYNTH_ID)
  COMPATIBLE_IOCTL(SNDCTL_SYNTH_CONTROL)
  COMPATIBLE_IOCTL(SNDCTL_SYNTH_REMOVESAMPLE)
  /* Big T for sound/OSS */
  COMPATIBLE_IOCTL(SNDCTL_TMR_TIMEBASE)
  COMPATIBLE_IOCTL(SNDCTL_TMR_START)
  COMPATIBLE_IOCTL(SNDCTL_TMR_STOP)
  COMPATIBLE_IOCTL(SNDCTL_TMR_CONTINUE)
  COMPATIBLE_IOCTL(SNDCTL_TMR_TEMPO)
  COMPATIBLE_IOCTL(SNDCTL_TMR_SOURCE)
  COMPATIBLE_IOCTL(SNDCTL_TMR_METRONOME)
  COMPATIBLE_IOCTL(SNDCTL_TMR_SELECT)
  /* Little m for sound/OSS */
  COMPATIBLE_IOCTL(SNDCTL_MIDI_PRETIME)
  COMPATIBLE_IOCTL(SNDCTL_MIDI_MPUMODE)
  COMPATIBLE_IOCTL(SNDCTL_MIDI_MPUCMD)
  /* Big P for sound/OSS */
  COMPATIBLE_IOCTL(SNDCTL_DSP_RESET)
  COMPATIBLE_IOCTL(SNDCTL_DSP_SYNC)
  COMPATIBLE_IOCTL(SNDCTL_DSP_SPEED)
  COMPATIBLE_IOCTL(SNDCTL_DSP_STEREO)
  COMPATIBLE_IOCTL(SNDCTL_DSP_GETBLKSIZE)
  COMPATIBLE_IOCTL(SNDCTL_DSP_CHANNELS)
  COMPATIBLE_IOCTL(SOUND_PCM_WRITE_FILTER)
  COMPATIBLE_IOCTL(SNDCTL_DSP_POST)
  COMPATIBLE_IOCTL(SNDCTL_DSP_SUBDIVIDE)
  COMPATIBLE_IOCTL(SNDCTL_DSP_SETFRAGMENT)
  COMPATIBLE_IOCTL(SNDCTL_DSP_GETFMTS)
  COMPATIBLE_IOCTL(SNDCTL_DSP_SETFMT)
  COMPATIBLE_IOCTL(SNDCTL_DSP_GETOSPACE)
  COMPATIBLE_IOCTL(SNDCTL_DSP_GETISPACE)
  COMPATIBLE_IOCTL(SNDCTL_DSP_NONBLOCK)
  COMPATIBLE_IOCTL(SNDCTL_DSP_GETCAPS)
  COMPATIBLE_IOCTL(SNDCTL_DSP_GETTRIGGER)
  COMPATIBLE_IOCTL(SNDCTL_DSP_SETTRIGGER)
  COMPATIBLE_IOCTL(SNDCTL_DSP_GETIPTR)
  COMPATIBLE_IOCTL(SNDCTL_DSP_GETOPTR)
  /* SNDCTL_DSP_MAPINBUF,  XXX needs translation */
  /* SNDCTL_DSP_MAPOUTBUF,  XXX needs translation */
  COMPATIBLE_IOCTL(SNDCTL_DSP_SETSYNCRO)
  COMPATIBLE_IOCTL(SNDCTL_DSP_SETDUPLEX)
  COMPATIBLE_IOCTL(SNDCTL_DSP_GETODELAY)
  COMPATIBLE_IOCTL(SNDCTL_DSP_PROFILE)
  COMPATIBLE_IOCTL(SOUND_PCM_READ_RATE)
  COMPATIBLE_IOCTL(SOUND_PCM_READ_CHANNELS)
  COMPATIBLE_IOCTL(SOUND_PCM_READ_BITS)
  COMPATIBLE_IOCTL(SOUND_PCM_READ_FILTER)
  /* Big C for sound/OSS */
  COMPATIBLE_IOCTL(SNDCTL_COPR_RESET)
  COMPATIBLE_IOCTL(SNDCTL_COPR_LOAD)
  COMPATIBLE_IOCTL(SNDCTL_COPR_RDATA)
  COMPATIBLE_IOCTL(SNDCTL_COPR_RCODE)
  COMPATIBLE_IOCTL(SNDCTL_COPR_WDATA)
  COMPATIBLE_IOCTL(SNDCTL_COPR_WCODE)
  COMPATIBLE_IOCTL(SNDCTL_COPR_RUN)
  COMPATIBLE_IOCTL(SNDCTL_COPR_HALT)
  COMPATIBLE_IOCTL(SNDCTL_COPR_SENDMSG)
  COMPATIBLE_IOCTL(SNDCTL_COPR_RCVMSG)
  /* Big M for sound/OSS */
  COMPATIBLE_IOCTL(SOUND_MIXER_READ_VOLUME)
  COMPATIBLE_IOCTL(SOUND_MIXER_READ_BASS)
  COMPATIBLE_IOCTL(SOUND_MIXER_READ_TREBLE)
  COMPATIBLE_IOCTL(SOUND_MIXER_READ_SYNTH)
  COMPATIBLE_IOCTL(SOUND_MIXER_READ_PCM)
  COMPATIBLE_IOCTL(SOUND_MIXER_READ_SPEAKER)
  COMPATIBLE_IOCTL(SOUND_MIXER_READ_LINE)
  COMPATIBLE_IOCTL(SOUND_MIXER_READ_MIC)
  COMPATIBLE_IOCTL(SOUND_MIXER_READ_CD)
  COMPATIBLE_IOCTL(SOUND_MIXER_READ_IMIX)
  COMPATIBLE_IOCTL(SOUND_MIXER_READ_ALTPCM)
  COMPATIBLE_IOCTL(SOUND_MIXER_READ_RECLEV)
  COMPATIBLE_IOCTL(SOUND_MIXER_READ_IGAIN)
  COMPATIBLE_IOCTL(SOUND_MIXER_READ_OGAIN)
  COMPATIBLE_IOCTL(SOUND_MIXER_READ_LINE1)
  COMPATIBLE_IOCTL(SOUND_MIXER_READ_LINE2)
  COMPATIBLE_IOCTL(SOUND_MIXER_READ_LINE3)
  COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_DIGITAL1))
  COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_DIGITAL2))
  COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_DIGITAL3))
  COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_PHONEIN))
  COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_PHONEOUT))
  COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_VIDEO))
  COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_RADIO))
  COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_MONITOR))
  COMPATIBLE_IOCTL(SOUND_MIXER_READ_MUTE)
  /* SOUND_MIXER_READ_ENHANCE,  same value as READ_MUTE */
  /* SOUND_MIXER_READ_LOUD,  same value as READ_MUTE */
  COMPATIBLE_IOCTL(SOUND_MIXER_READ_RECSRC)
  COMPATIBLE_IOCTL(SOUND_MIXER_READ_DEVMASK)
  COMPATIBLE_IOCTL(SOUND_MIXER_READ_RECMASK)
  COMPATIBLE_IOCTL(SOUND_MIXER_READ_STEREODEVS)
  COMPATIBLE_IOCTL(SOUND_MIXER_READ_CAPS)
  COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_VOLUME)
  COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_BASS)
  COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_TREBLE)
  COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_SYNTH)
  COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_PCM)
  COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_SPEAKER)
  COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_LINE)
  COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_MIC)
  COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_CD)
  COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_IMIX)
  COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_ALTPCM)
  COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_RECLEV)
  COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_IGAIN)
  COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_OGAIN)
  COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_LINE1)
  COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_LINE2)
  COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_LINE3)
  COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_DIGITAL1))
  COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_DIGITAL2))
  COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_DIGITAL3))
  COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_PHONEIN))
  COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_PHONEOUT))
  COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_VIDEO))
  COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_RADIO))
  COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_MONITOR))
  COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_MUTE)
  /* SOUND_MIXER_WRITE_ENHANCE,  same value as WRITE_MUTE */
  /* SOUND_MIXER_WRITE_LOUD,  same value as WRITE_MUTE */
  COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_RECSRC)
  COMPATIBLE_IOCTL(SOUND_MIXER_INFO)
  COMPATIBLE_IOCTL(SOUND_OLD_MIXER_INFO)
  COMPATIBLE_IOCTL(SOUND_MIXER_ACCESS)
  COMPATIBLE_IOCTL(SOUND_MIXER_AGC)
  COMPATIBLE_IOCTL(SOUND_MIXER_3DSE)
  COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE1)
  COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE2)
  COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE3)
  COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE4)
  COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE5)
  COMPATIBLE_IOCTL(SOUND_MIXER_GETLEVELS)
  COMPATIBLE_IOCTL(SOUND_MIXER_SETLEVELS)
  COMPATIBLE_IOCTL(OSS_GETVERSION)

  /* Raw devices */
  COMPATIBLE_IOCTL(RAW_SETBIND)
  COMPATIBLE_IOCTL(RAW_GETBIND)

  /* Watchdog */
  COMPATIBLE_IOCTL(WDIOC_GETSUPPORT)
  COMPATIBLE_IOCTL(WDIOC_GETSTATUS)
  COMPATIBLE_IOCTL(WDIOC_GETBOOTSTATUS)
  COMPATIBLE_IOCTL(WDIOC_GETTEMP)
  COMPATIBLE_IOCTL(WDIOC_SETOPTIONS)
  COMPATIBLE_IOCTL(WDIOC_KEEPALIVE)
  COMPATIBLE_IOCTL(WDIOC_SETTIMEOUT)
  COMPATIBLE_IOCTL(WDIOC_GETTIMEOUT)

  COMPATIBLE_IOCTL(WDIOC_SETPRETIMEOUT)
  COMPATIBLE_IOCTL(WDIOC_GETPRETIMEOUT)

  /* Big R */
  COMPATIBLE_IOCTL(RNDGETENTCNT)
  COMPATIBLE_IOCTL(RNDADDTOENTCNT)
  COMPATIBLE_IOCTL(RNDGETPOOL)
  COMPATIBLE_IOCTL(RNDADDENTROPY)
  COMPATIBLE_IOCTL(RNDZAPENTCNT)
  COMPATIBLE_IOCTL(RNDCLEARPOOL)
  /* Bluetooth */
  COMPATIBLE_IOCTL(HCIDEVUP)
  COMPATIBLE_IOCTL(HCIDEVDOWN)
  COMPATIBLE_IOCTL(HCIDEVRESET)
  COMPATIBLE_IOCTL(HCIDEVRESTAT)
  COMPATIBLE_IOCTL(HCIGETDEVLIST)
  COMPATIBLE_IOCTL(HCIGETDEVINFO)
  COMPATIBLE_IOCTL(HCIGETCONNLIST)
  COMPATIBLE_IOCTL(HCIGETCONNINFO)

  COMPATIBLE_IOCTL(HCIGETAUTHINFO)

  COMPATIBLE_IOCTL(HCISETRAW)
  COMPATIBLE_IOCTL(HCISETSCAN)
  COMPATIBLE_IOCTL(HCISETAUTH)
  COMPATIBLE_IOCTL(HCISETENCRYPT)
  COMPATIBLE_IOCTL(HCISETPTYPE)
  COMPATIBLE_IOCTL(HCISETLINKPOL)
  COMPATIBLE_IOCTL(HCISETLINKMODE)
  COMPATIBLE_IOCTL(HCISETACLMTU)
  COMPATIBLE_IOCTL(HCISETSCOMTU)

  COMPATIBLE_IOCTL(HCIBLOCKADDR)
  COMPATIBLE_IOCTL(HCIUNBLOCKADDR)

  COMPATIBLE_IOCTL(HCIINQUIRY)
  COMPATIBLE_IOCTL(HCIUARTSETPROTO)
  COMPATIBLE_IOCTL(HCIUARTGETPROTO)

  COMPATIBLE_IOCTL(HCIUARTGETDEVICE)
  COMPATIBLE_IOCTL(HCIUARTSETFLAGS)
  COMPATIBLE_IOCTL(HCIUARTGETFLAGS)

  COMPATIBLE_IOCTL(RFCOMMCREATEDEV)
  COMPATIBLE_IOCTL(RFCOMMRELEASEDEV)
  COMPATIBLE_IOCTL(RFCOMMGETDEVLIST)
  COMPATIBLE_IOCTL(RFCOMMGETDEVINFO)
  COMPATIBLE_IOCTL(RFCOMMSTEALDLC)

  /* CAPI */
  COMPATIBLE_IOCTL(CAPI_REGISTER)
  COMPATIBLE_IOCTL(CAPI_GET_MANUFACTURER)
  COMPATIBLE_IOCTL(CAPI_GET_VERSION)
  COMPATIBLE_IOCTL(CAPI_GET_SERIAL)
  COMPATIBLE_IOCTL(CAPI_GET_PROFILE)
  COMPATIBLE_IOCTL(CAPI_MANUFACTURER_CMD)
  COMPATIBLE_IOCTL(CAPI_GET_ERRCODE)
  COMPATIBLE_IOCTL(CAPI_INSTALLED)
  COMPATIBLE_IOCTL(CAPI_GET_FLAGS)
  COMPATIBLE_IOCTL(CAPI_SET_FLAGS)
  COMPATIBLE_IOCTL(CAPI_CLR_FLAGS)
  COMPATIBLE_IOCTL(CAPI_NCCI_OPENCOUNT)
  COMPATIBLE_IOCTL(CAPI_NCCI_GETUNIT)

  /* Misc. */
  COMPATIBLE_IOCTL(0x41545900)		/* ATYIO_CLKR */
  COMPATIBLE_IOCTL(0x41545901)		/* ATYIO_CLKW */
  COMPATIBLE_IOCTL(PCIIOC_CONTROLLER)
  COMPATIBLE_IOCTL(PCIIOC_MMAP_IS_IO)
  COMPATIBLE_IOCTL(PCIIOC_MMAP_IS_MEM)
  COMPATIBLE_IOCTL(PCIIOC_WRITE_COMBINE)

  /* hiddev */
  COMPATIBLE_IOCTL(HIDIOCGVERSION)
  COMPATIBLE_IOCTL(HIDIOCAPPLICATION)
  COMPATIBLE_IOCTL(HIDIOCGDEVINFO)
  COMPATIBLE_IOCTL(HIDIOCGSTRING)
  COMPATIBLE_IOCTL(HIDIOCINITREPORT)
  COMPATIBLE_IOCTL(HIDIOCGREPORT)
  COMPATIBLE_IOCTL(HIDIOCSREPORT)
  COMPATIBLE_IOCTL(HIDIOCGREPORTINFO)
  COMPATIBLE_IOCTL(HIDIOCGFIELDINFO)
  COMPATIBLE_IOCTL(HIDIOCGUSAGE)
  COMPATIBLE_IOCTL(HIDIOCSUSAGE)
  COMPATIBLE_IOCTL(HIDIOCGUCODE)
  COMPATIBLE_IOCTL(HIDIOCGFLAG)
  COMPATIBLE_IOCTL(HIDIOCSFLAG)
  COMPATIBLE_IOCTL(HIDIOCGCOLLECTIONINDEX)
  COMPATIBLE_IOCTL(HIDIOCGCOLLECTIONINFO)

  /* joystick */
  COMPATIBLE_IOCTL(JSIOCGVERSION)
  COMPATIBLE_IOCTL(JSIOCGAXES)
  COMPATIBLE_IOCTL(JSIOCGBUTTONS)
  COMPATIBLE_IOCTL(JSIOCGNAME(0))

  /* fat 'r' ioctls. These are handled by fat with ->compat_ioctl,
     but we don't want warnings on other file systems. So declare
     them as compatible here. */
  #define VFAT_IOCTL_READDIR_BOTH32       _IOR('r', 1, struct compat_dirent[2])
  #define VFAT_IOCTL_READDIR_SHORT32      _IOR('r', 2, struct compat_dirent[2])
  
  IGNORE_IOCTL(VFAT_IOCTL_READDIR_BOTH32)
  IGNORE_IOCTL(VFAT_IOCTL_READDIR_SHORT32)

  #ifdef CONFIG_SPARC
  /* Sparc framebuffers, handled in sbusfb_compat_ioctl() */
  IGNORE_IOCTL(FBIOGTYPE)
  IGNORE_IOCTL(FBIOSATTR)
  IGNORE_IOCTL(FBIOGATTR)
  IGNORE_IOCTL(FBIOSVIDEO)
  IGNORE_IOCTL(FBIOGVIDEO)
  IGNORE_IOCTL(FBIOSCURPOS)
  IGNORE_IOCTL(FBIOGCURPOS)
  IGNORE_IOCTL(FBIOGCURMAX)
  IGNORE_IOCTL(FBIOPUTCMAP32)
  IGNORE_IOCTL(FBIOGETCMAP32)
  IGNORE_IOCTL(FBIOSCURSOR32)
  IGNORE_IOCTL(FBIOGCURSOR32)
  #endif

  };

  /*
   * Convert common ioctl arguments based on their command number
   *
   * Please do not add any code in here. Instead, implement
   * a compat_ioctl operation in the place that handleѕ the
   * ioctl for the native case.
   */

  static long do_ioctl_trans(unsigned int cmd,

  		 unsigned long arg, struct file *file)
  {

  	void __user *argp = compat_ptr(arg);

  	switch (cmd) {
  	case PPPIOCGIDLE32:

  		return ppp_gidle(file, cmd, argp);

  	case PPPIOCSCOMPRESS32:

  		return ppp_scompress(file, cmd, argp);

  	case PPPIOCSPASS32:
  	case PPPIOCSACTIVE32:

  		return ppp_sock_fprog_ioctl_trans(file, cmd, argp);

  #ifdef CONFIG_BLOCK
  	case SG_IO:

  		return sg_ioctl_trans(file, cmd, argp);

  	case SG_GET_REQUEST_TABLE:

  		return sg_grt_trans(file, cmd, argp);

  	case MTIOCGET32:
  	case MTIOCPOS32:

  		return mt_ioctl_trans(file, cmd, argp);

  #endif

  	/* Not implemented in the native kernel */
  	case RTC_IRQP_READ32:
  	case RTC_IRQP_SET32:
  	case RTC_EPOCH_READ32:
  	case RTC_EPOCH_SET32:

  		return rtc_ioctl(file, cmd, argp);

  	}

  
  	/*
  	 * These take an integer instead of a pointer as 'arg',
  	 * so we must not do a compat_ptr() translation.
  	 */
  	switch (cmd) {

  	/* RAID */
  	case HOT_REMOVE_DISK:
  	case HOT_ADD_DISK:
  	case SET_DISK_FAULTY:
  	case SET_BITMAP_FILE:

  		return vfs_ioctl(file, cmd, arg);

  	}

  	return -ENOIOCTLCMD;
  }

  static int compat_ioctl_check_table(unsigned int xcmd)
  {
  	int i;
  	const int max = ARRAY_SIZE(ioctl_pointer) - 1;
  
  	BUILD_BUG_ON(max >= (1 << 16));
  
  	/* guess initial offset into table, assuming a
  	   normalized distribution */
  	i = ((xcmd >> 16) * max) >> 16;
  
  	/* do linear search up first, until greater or equal */
  	while (ioctl_pointer[i] < xcmd && i < max)
  		i++;
  
  	/* then do linear search down */
  	while (ioctl_pointer[i] > xcmd && i > 0)
  		i--;
  
  	return ioctl_pointer[i] == xcmd;
  }

  COMPAT_SYSCALL_DEFINE3(ioctl, unsigned int, fd, unsigned int, cmd,
  		       compat_ulong_t, arg32)

  {

  	unsigned long arg = arg32;

  	struct fd f = fdget(fd);

  	int error = -EBADF;

  	if (!f.file)

  		goto out;
  
  	/* RED-PEN how should LSM module know it's handling 32bit? */

  	error = security_file_ioctl(f.file, cmd, arg);

  	if (error)
  		goto out_fput;
  
  	/*
  	 * To allow the compat_ioctl handlers to be self contained
  	 * we need to check the common ioctls here first.
  	 * Just handle them with the standard handlers below.
  	 */
  	switch (cmd) {
  	case FIOCLEX:
  	case FIONCLEX:
  	case FIONBIO:
  	case FIOASYNC:
  	case FIOQSIZE:
  		break;

  #if defined(CONFIG_IA64) || defined(CONFIG_X86_64)
  	case FS_IOC_RESVSP_32:
  	case FS_IOC_RESVSP64_32:

  		error = compat_ioctl_preallocate(f.file, compat_ptr(arg));

  		goto out_fput;
  #else
  	case FS_IOC_RESVSP:
  	case FS_IOC_RESVSP64:

  		error = ioctl_preallocate(f.file, compat_ptr(arg));

  		goto out_fput;
  #endif

  	case FICLONE:

  		goto do_ioctl;

  	case FICLONERANGE:

  	case FIDEDUPERANGE:

  	case FS_IOC_FIEMAP:

  		goto found_handler;

  	case FIBMAP:
  	case FIGETBSZ:
  	case FIONREAD:

  		if (S_ISREG(file_inode(f.file)->i_mode))

  			break;
  		/*FALL THROUGH*/
  
  	default:

  		if (f.file->f_op->compat_ioctl) {

  			error = f.file->f_op->compat_ioctl(f.file, cmd, arg);

  			if (error != -ENOIOCTLCMD)
  				goto out_fput;
  		}

  		if (!f.file->f_op->unlocked_ioctl)

  			goto do_ioctl;
  		break;
  	}

  	if (compat_ioctl_check_table(XFORM(cmd)))
  		goto found_handler;

  	error = do_ioctl_trans(cmd, arg, f.file);

  	if (error == -ENOIOCTLCMD)
  		error = -ENOTTY;

  
  	goto out_fput;
  
   found_handler:

  	arg = (unsigned long)compat_ptr(arg);

   do_ioctl:

  	error = do_vfs_ioctl(f.file, fd, cmd, arg);

   out_fput:

  	fdput(f);

   out:
  	return error;
  }

  static int __init init_sys32_ioctl_cmp(const void *p, const void *q)

  {

  	unsigned int a, b;
  	a = *(unsigned int *)p;
  	b = *(unsigned int *)q;
  	if (a > b)
  		return 1;
  	if (a < b)
  		return -1;
  	return 0;

  }
  
  static int __init init_sys32_ioctl(void)
  {

  	sort(ioctl_pointer, ARRAY_SIZE(ioctl_pointer), sizeof(*ioctl_pointer),
  		init_sys32_ioctl_cmp, NULL);

  	return 0;
  }
  __initcall(init_sys32_ioctl);