compat_ioctl.c 45.8 KB
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/*
 * 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 
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 * Copyright (C) 2003       Pavel Machek (pavel@ucw.cz)
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 *
 * These routines maintain argument size conversion between 32bit and 64bit
 * ioctls.
 */

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#include <linux/joystick.h>

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#include <linux/types.h>
#include <linux/compat.h>
#include <linux/kernel.h>
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#include <linux/capability.h>
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#include <linux/compiler.h>
#include <linux/sched.h>
#include <linux/smp.h>
#include <linux/ioctl.h>
#include <linux/if.h>
#include <linux/if_bridge.h>
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#include <linux/raid/md_u.h>
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#include <linux/kd.h>
#include <linux/route.h>
#include <linux/in6.h>
#include <linux/ipv6_route.h>
#include <linux/skbuff.h>
#include <linux/netlink.h>
#include <linux/vt.h>
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#include <linux/falloc.h>
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#include <linux/fs.h>
#include <linux/file.h>
#include <linux/ppp_defs.h>
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#include <linux/ppp-ioctl.h>
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#include <linux/if_pppox.h>
#include <linux/mtio.h>
#include <linux/auto_fs.h>
#include <linux/auto_fs4.h>
#include <linux/tty.h>
#include <linux/vt_kern.h>
#include <linux/fb.h>
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#include <linux/videodev2.h>
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#include <linux/netdevice.h>
#include <linux/raw.h>
#include <linux/blkdev.h>
#include <linux/elevator.h>
#include <linux/rtc.h>
#include <linux/pci.h>
#include <linux/serial.h>
#include <linux/if_tun.h>
#include <linux/ctype.h>
#include <linux/syscalls.h>
#include <linux/i2c.h>
#include <linux/i2c-dev.h>
#include <linux/atalk.h>
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#include <linux/gfp.h>
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#include <linux/cec.h>
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#include "internal.h"

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#include <net/bluetooth/bluetooth.h>
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#include <net/bluetooth/hci_sock.h>
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#include <net/bluetooth/rfcomm.h>

#include <linux/capi.h>
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#include <linux/gigaset_dev.h>
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#ifdef CONFIG_BLOCK
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#include <linux/cdrom.h>
#include <linux/fd.h>
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#include <scsi/scsi.h>
#include <scsi/scsi_ioctl.h>
#include <scsi/sg.h>
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#endif
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#include <linux/uaccess.h>
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#include <linux/ethtool.h>
#include <linux/mii.h>
#include <linux/if_bonding.h>
#include <linux/watchdog.h>

#include <linux/soundcard.h>
#include <linux/lp.h>
#include <linux/ppdev.h>

#include <linux/atm.h>
#include <linux/atmarp.h>
#include <linux/atmclip.h>
#include <linux/atmdev.h>
#include <linux/atmioc.h>
#include <linux/atmlec.h>
#include <linux/atmmpc.h>
#include <linux/atmsvc.h>
#include <linux/atm_tcp.h>
#include <linux/sonet.h>
#include <linux/atm_suni.h>

#include <linux/usb.h>
#include <linux/usbdevice_fs.h>
#include <linux/nbd.h>
#include <linux/random.h>
#include <linux/filter.h>

#include <linux/hiddev.h>

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#define __DVB_CORE__
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#include <linux/dvb/audio.h>
#include <linux/dvb/dmx.h>
#include <linux/dvb/frontend.h>
#include <linux/dvb/video.h>

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#include <linux/sort.h>

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#ifdef CONFIG_SPARC
#include <asm/fbio.h>
#endif

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

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

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

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	return vfs_ioctl(file, cmd, arg);
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}

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static int w_long(struct file *file,
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		unsigned int cmd, compat_ulong_t __user *argp)
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{
	int err;
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	unsigned long __user *valp = compat_alloc_user_space(sizeof(*valp));
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	if (valp == NULL)
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		return -EFAULT;
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	err = do_ioctl(file, cmd, (unsigned long)valp);
	if (err)
		return err;
	if (convert_in_user(valp, argp))
		return -EFAULT;
	return 0;
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}
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struct compat_video_event {
	int32_t		type;
	compat_time_t	timestamp;
	union {
	        video_size_t size;
		unsigned int frame_rate;
	} u;
};

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static int do_video_get_event(struct file *file,
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		unsigned int cmd, struct compat_video_event __user *up)
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{
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	struct video_event __user *kevent =
		compat_alloc_user_space(sizeof(*kevent));
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	int err;

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	if (kevent == NULL)
		return -EFAULT;
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	err = do_ioctl(file, cmd, (unsigned long)kevent);
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	if (!err) {
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		err  = convert_in_user(&kevent->type, &up->type);
		err |= convert_in_user(&kevent->timestamp, &up->timestamp);
		err |= convert_in_user(&kevent->u.size.w, &up->u.size.w);
		err |= convert_in_user(&kevent->u.size.h, &up->u.size.h);
		err |= convert_in_user(&kevent->u.size.aspect_ratio,
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				&up->u.size.aspect_ratio);
		if (err)
			err = -EFAULT;
	}

	return err;
}

struct compat_video_still_picture {
        compat_uptr_t iFrame;
        int32_t size;
};

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static int do_video_stillpicture(struct file *file,
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		unsigned int cmd, struct compat_video_still_picture __user *up)
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{
	struct video_still_picture __user *up_native;
	compat_uptr_t fp;
	int32_t size;
	int err;

	err  = get_user(fp, &up->iFrame);
	err |= get_user(size, &up->size);
	if (err)
		return -EFAULT;

	up_native =
		compat_alloc_user_space(sizeof(struct video_still_picture));

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	err =  put_user(compat_ptr(fp), &up_native->iFrame);
	err |= put_user(size, &up_native->size);
	if (err)
		return -EFAULT;
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	err = do_ioctl(file, cmd, (unsigned long) up_native);
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	return err;
}

struct compat_video_spu_palette {
	int length;
	compat_uptr_t palette;
};

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static int do_video_set_spu_palette(struct file *file,
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		unsigned int cmd, struct compat_video_spu_palette __user *up)
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{
	struct video_spu_palette __user *up_native;
	compat_uptr_t palp;
	int length, err;

	err  = get_user(palp, &up->palette);
	err |= get_user(length, &up->length);
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	if (err)
		return -EFAULT;
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	up_native = compat_alloc_user_space(sizeof(struct video_spu_palette));
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	err  = put_user(compat_ptr(palp), &up_native->palette);
	err |= put_user(length, &up_native->length);
	if (err)
		return -EFAULT;
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	err = do_ioctl(file, cmd, (unsigned long) up_native);
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	return err;
}

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#ifdef CONFIG_BLOCK
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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;
}

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static int sg_ioctl_trans(struct file *file, unsigned int cmd,
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			sg_io_hdr32_t __user *sgio32)
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{
	sg_io_hdr_t __user *sgio;
	u16 iovec_count;
	u32 data;
	void __user *dxferp;
	int err;
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	int interface_id;

	if (get_user(interface_id, &sgio32->interface_id))
		return -EFAULT;
	if (interface_id != 'S')
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		return do_ioctl(file, cmd, (unsigned long)sgio32);
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	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;

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

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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;
};

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static int sg_grt_trans(struct file *file,
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		unsigned int cmd, struct compat_sg_req_info __user *o)
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{
	int err, i;
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	sg_req_info_t __user *r;
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	r = compat_alloc_user_space(sizeof(sg_req_info_t)*SG_MAX_QUEUE);
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	err = do_ioctl(file, cmd, (unsigned long)r);
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	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;
}
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#endif /* CONFIG_BLOCK */
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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)

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static int ppp_sock_fprog_ioctl_trans(struct file *file,
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		unsigned int cmd, struct sock_fprog32 __user *u_fprog32)
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{
	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;

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

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)

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static int ppp_gidle(struct file *file, unsigned int cmd,
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		struct ppp_idle32 __user *idle32)
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{
	struct ppp_idle __user *idle;
	__kernel_time_t xmit, recv;
	int err;

	idle = compat_alloc_user_space(sizeof(*idle));

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

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static int ppp_scompress(struct file *file, unsigned int cmd,
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	struct ppp_option_data32 __user *odata32)
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{
	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;

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

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#ifdef CONFIG_BLOCK
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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)

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static int mt_ioctl_trans(struct file *file,
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		unsigned int cmd, void __user *argp)
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{
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	/* NULL initialization to make gcc shut up */
	struct mtget __user *get = NULL;
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	struct mtget32 __user *umget32;
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	struct mtpos __user *pos = NULL;
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	struct mtpos32 __user *upos32;
	unsigned long kcmd;
	void *karg;
	int err = 0;

	switch(cmd) {
	case MTIOCPOS32:
		kcmd = MTIOCPOS;
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		pos = compat_alloc_user_space(sizeof(*pos));
		karg = pos;
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		break;
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	default:	/* MTIOCGET32 */
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		kcmd = MTIOCGET;
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		get = compat_alloc_user_space(sizeof(*get));
		karg = get;
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		break;
	}
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	if (karg == NULL)
		return -EFAULT;
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	err = do_ioctl(file, kcmd, (unsigned long)karg);
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	if (err)
		return err;
	switch (cmd) {
	case MTIOCPOS32:
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		upos32 = argp;
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		err = convert_in_user(&pos->mt_blkno, &upos32->mt_blkno);
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		break;
	case MTIOCGET32:
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		umget32 = argp;
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		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);
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		break;
	}
	return err ? -EFAULT: 0;
}

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#endif /* CONFIG_BLOCK */
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/* Bluetooth ioctls */
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#define HCIUARTSETPROTO		_IOW('U', 200, int)
#define HCIUARTGETPROTO		_IOR('U', 201, int)
#define HCIUARTGETDEVICE	_IOR('U', 202, int)
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#define HCIUARTSETFLAGS		_IOW('U', 203, int)
#define HCIUARTGETFLAGS		_IOR('U', 204, int)
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#define BNEPCONNADD	_IOW('B', 200, int)
#define BNEPCONNDEL	_IOW('B', 201, int)
#define BNEPGETCONNLIST	_IOR('B', 210, int)
#define BNEPGETCONNINFO	_IOR('B', 211, int)
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#define BNEPGETSUPPFEAT	_IOR('B', 212, int)
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#define CMTPCONNADD	_IOW('C', 200, int)
#define CMTPCONNDEL	_IOW('C', 201, int)
#define CMTPGETCONNLIST	_IOR('C', 210, int)
#define CMTPGETCONNINFO	_IOR('C', 211, int)

#define HIDPCONNADD	_IOW('H', 200, int)
#define HIDPCONNDEL	_IOW('H', 201, int)
#define HIDPGETCONNLIST	_IOR('H', 210, int)
#define HIDPGETCONNINFO	_IOR('H', 211, int)


struct serial_struct32 {
        compat_int_t    type;
        compat_int_t    line;
        compat_uint_t   port;
        compat_int_t    irq;
        compat_int_t    flags;
        compat_int_t    xmit_fifo_size;
        compat_int_t    custom_divisor;
        compat_int_t    baud_base;
        unsigned short  close_delay;
        char    io_type;
        char    reserved_char[1];
        compat_int_t    hub6;
        unsigned short  closing_wait; /* time to wait before closing */
        unsigned short  closing_wait2; /* no longer used... */
        compat_uint_t   iomem_base;
        unsigned short  iomem_reg_shift;
        unsigned int    port_high;
     /* compat_ulong_t  iomap_base FIXME */
        compat_int_t    reserved[1];
};

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static int serial_struct_ioctl(struct file *file,
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		unsigned cmd, struct serial_struct32 __user *ss32)
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{
        typedef struct serial_struct32 SS32;
        int err;
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	struct serial_struct __user *ss = compat_alloc_user_space(sizeof(*ss));
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        __u32 udata;
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	unsigned int base;
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	unsigned char *iomem_base;
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	if (ss == NULL)
		return -EFAULT;
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        if (cmd == TIOCSSERIAL) {
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		if (copy_in_user(ss, ss32, offsetof(SS32, iomem_base)) ||
		    get_user(udata, &ss32->iomem_base))
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			return -EFAULT;
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		iomem_base = compat_ptr(udata);
		if (put_user(iomem_base, &ss->iomem_base) ||
		    convert_in_user(&ss32->iomem_reg_shift,
		      &ss->iomem_reg_shift) ||
		    convert_in_user(&ss32->port_high, &ss->port_high) ||
		    put_user(0UL, &ss->iomap_base))
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			return -EFAULT;
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        }
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	err = do_ioctl(file, cmd, (unsigned long)ss);
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        if (cmd == TIOCGSERIAL && err >= 0) {
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		if (copy_in_user(ss32, ss, offsetof(SS32, iomem_base)) ||
		    get_user(iomem_base, &ss->iomem_base))
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			return -EFAULT;
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		base = (unsigned long)iomem_base  >> 32 ?
			0xffffffff : (unsigned)(unsigned long)iomem_base;
		if (put_user(base, &ss32->iomem_base) ||
		    convert_in_user(&ss->iomem_reg_shift,
		      &ss32->iomem_reg_shift) ||
		    convert_in_user(&ss->port_high, &ss32->port_high))
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			return -EFAULT;
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        }
        return err;
}

/*
 * I2C layer ioctls
 */

struct i2c_msg32 {
	u16 addr;
	u16 flags;
	u16 len;
	compat_caddr_t buf;
};

struct i2c_rdwr_ioctl_data32 {
	compat_caddr_t msgs; /* struct i2c_msg __user *msgs */
	u32 nmsgs;
};

struct i2c_smbus_ioctl_data32 {
	u8 read_write;
	u8 command;
	u32 size;
	compat_caddr_t data; /* union i2c_smbus_data *data */
};

struct i2c_rdwr_aligned {
	struct i2c_rdwr_ioctl_data cmd;
	struct i2c_msg msgs[0];
};

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static int do_i2c_rdwr_ioctl(struct file *file,
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	unsigned int cmd, struct i2c_rdwr_ioctl_data32 __user *udata)
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{
	struct i2c_rdwr_aligned		__user *tdata;
	struct i2c_msg			__user *tmsgs;
	struct i2c_msg32		__user *umsgs;
	compat_caddr_t			datap;
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	u32				nmsgs;
	int				i;
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	if (get_user(nmsgs, &udata->nmsgs))
		return -EFAULT;
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	if (nmsgs > I2C_RDWR_IOCTL_MAX_MSGS)
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		return -EINVAL;

	if (get_user(datap, &udata->msgs))
		return -EFAULT;
	umsgs = compat_ptr(datap);

	tdata = compat_alloc_user_space(sizeof(*tdata) +
				      nmsgs * sizeof(struct i2c_msg));
	tmsgs = &tdata->msgs[0];

	if (put_user(nmsgs, &tdata->cmd.nmsgs) ||
	    put_user(tmsgs, &tdata->cmd.msgs))
		return -EFAULT;

	for (i = 0; i < nmsgs; i++) {
		if (copy_in_user(&tmsgs[i].addr, &umsgs[i].addr, 3*sizeof(u16)))
			return -EFAULT;
		if (get_user(datap, &umsgs[i].buf) ||
		    put_user(compat_ptr(datap), &tmsgs[i].buf))
			return -EFAULT;
	}
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	return do_ioctl(file, cmd, (unsigned long)tdata);
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}

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static int do_i2c_smbus_ioctl(struct file *file,
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		unsigned int cmd, struct i2c_smbus_ioctl_data32   __user *udata)
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{
	struct i2c_smbus_ioctl_data	__user *tdata;
	compat_caddr_t			datap;

	tdata = compat_alloc_user_space(sizeof(*tdata));
	if (tdata == NULL)
		return -ENOMEM;
	if (!access_ok(VERIFY_WRITE, tdata, sizeof(*tdata)))
		return -EFAULT;

	if (!access_ok(VERIFY_READ, udata, sizeof(*udata)))
		return -EFAULT;

	if (__copy_in_user(&tdata->read_write, &udata->read_write, 2 * sizeof(u8)))
		return -EFAULT;
	if (__copy_in_user(&tdata->size, &udata->size, 2 * sizeof(u32)))
		return -EFAULT;
	if (__get_user(datap, &udata->data) ||
	    __put_user(compat_ptr(datap), &tdata->data))
		return -EFAULT;

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	return do_ioctl(file, cmd, (unsigned long)tdata);
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}

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#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)

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static int rtc_ioctl(struct file *file,
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		unsigned cmd, void __user *argp)
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{
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	unsigned long __user *valp = compat_alloc_user_space(sizeof(*valp));
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	int ret;

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	if (valp == NULL)
		return -EFAULT;
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	switch (cmd) {
	case RTC_IRQP_READ32:
	case RTC_EPOCH_READ32:
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		ret = do_ioctl(file, (cmd == RTC_IRQP_READ32) ?
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					RTC_IRQP_READ : RTC_EPOCH_READ,
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					(unsigned long)valp);
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		if (ret)
			return ret;
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		return convert_in_user(valp, (unsigned int __user *)argp);
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	case RTC_IRQP_SET32:
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		return do_ioctl(file, RTC_IRQP_SET, (unsigned long)argp);
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	case RTC_EPOCH_SET32:
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		return do_ioctl(file, RTC_EPOCH_SET, (unsigned long)argp);
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	}
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	return -ENOIOCTLCMD;
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}

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

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/*
 * simple reversible transform to make our table more evenly
 * distributed after sorting.
 */
#define XFORM(i) (((i) ^ ((i) << 27) ^ ((i) << 17)) & 0xffffffff)
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#define COMPATIBLE_IOCTL(cmd) XFORM((u32)cmd),
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/* 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)
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static unsigned int ioctl_pointer[] = {
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/* compatible ioctls first */
COMPATIBLE_IOCTL(0x4B50)   /* KDGHWCLK - not in the kernel, but don't complain */
COMPATIBLE_IOCTL(0x4B51)   /* KDSHWCLK - not in the kernel, but don't complain */

/* Big T */
COMPATIBLE_IOCTL(TCGETA)
COMPATIBLE_IOCTL(TCSETA)
COMPATIBLE_IOCTL(TCSETAW)
COMPATIBLE_IOCTL(TCSETAF)
COMPATIBLE_IOCTL(TCSBRK)
COMPATIBLE_IOCTL(TCXONC)
COMPATIBLE_IOCTL(TCFLSH)
COMPATIBLE_IOCTL(TCGETS)
COMPATIBLE_IOCTL(TCSETS)
COMPATIBLE_IOCTL(TCSETSW)
COMPATIBLE_IOCTL(TCSETSF)
COMPATIBLE_IOCTL(TIOCLINUX)
COMPATIBLE_IOCTL(TIOCSBRK)
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COMPATIBLE_IOCTL(TIOCGDEV)
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COMPATIBLE_IOCTL(TIOCCBRK)
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COMPATIBLE_IOCTL(TIOCGSID)
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COMPATIBLE_IOCTL(TIOCGICOUNT)
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COMPATIBLE_IOCTL(TIOCGPKT)
COMPATIBLE_IOCTL(TIOCGPTLCK)
COMPATIBLE_IOCTL(TIOCGEXCL)
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/* Little t */
COMPATIBLE_IOCTL(TIOCGETD)
COMPATIBLE_IOCTL(TIOCSETD)
COMPATIBLE_IOCTL(TIOCEXCL)
COMPATIBLE_IOCTL(TIOCNXCL)
COMPATIBLE_IOCTL(TIOCCONS)
COMPATIBLE_IOCTL(TIOCGSOFTCAR)
COMPATIBLE_IOCTL(TIOCSSOFTCAR)
COMPATIBLE_IOCTL(TIOCSWINSZ)
COMPATIBLE_IOCTL(TIOCGWINSZ)
COMPATIBLE_IOCTL(TIOCMGET)
COMPATIBLE_IOCTL(TIOCMBIC)
COMPATIBLE_IOCTL(TIOCMBIS)
COMPATIBLE_IOCTL(TIOCMSET)
COMPATIBLE_IOCTL(TIOCPKT)
COMPATIBLE_IOCTL(TIOCNOTTY)
COMPATIBLE_IOCTL(TIOCSTI)
COMPATIBLE_IOCTL(TIOCOUTQ)
COMPATIBLE_IOCTL(TIOCSPGRP)
COMPATIBLE_IOCTL(TIOCGPGRP)
COMPATIBLE_IOCTL(TIOCGPTN)
COMPATIBLE_IOCTL(TIOCSPTLCK)
COMPATIBLE_IOCTL(TIOCSERGETLSR)
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COMPATIBLE_IOCTL(TIOCSIG)
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#ifdef TIOCSRS485
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COMPATIBLE_IOCTL(TIOCSRS485)
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#endif
#ifdef TIOCGRS485
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COMPATIBLE_IOCTL(TIOCGRS485)
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#endif
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#ifdef TCGETS2
COMPATIBLE_IOCTL(TCGETS2)
COMPATIBLE_IOCTL(TCSETS2)
COMPATIBLE_IOCTL(TCSETSW2)
COMPATIBLE_IOCTL(TCSETSF2)
#endif
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/* Little f */
COMPATIBLE_IOCTL(FIOCLEX)
COMPATIBLE_IOCTL(FIONCLEX)
COMPATIBLE_IOCTL(FIOASYNC)
COMPATIBLE_IOCTL(FIONBIO)
COMPATIBLE_IOCTL(FIONREAD)  /* This is also TIOCINQ */
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COMPATIBLE_IOCTL(FS_IOC_FIEMAP)
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/* 0x00 */
COMPATIBLE_IOCTL(FIBMAP)
COMPATIBLE_IOCTL(FIGETBSZ)
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/* 'X' - originally XFS but some now in the VFS */
COMPATIBLE_IOCTL(FIFREEZE)
COMPATIBLE_IOCTL(FITHAW)
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COMPATIBLE_IOCTL(FITRIM)
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COMPATIBLE_IOCTL(KDGETKEYCODE)
COMPATIBLE_IOCTL(KDSETKEYCODE)
COMPATIBLE_IOCTL(KDGKBTYPE)
COMPATIBLE_IOCTL(KDGETMODE)
COMPATIBLE_IOCTL(KDGKBMODE)
COMPATIBLE_IOCTL(KDGKBMETA)
COMPATIBLE_IOCTL(KDGKBENT)
COMPATIBLE_IOCTL(KDSKBENT)
COMPATIBLE_IOCTL(KDGKBSENT)
COMPATIBLE_IOCTL(KDSKBSENT)
COMPATIBLE_IOCTL(KDGKBDIACR)
COMPATIBLE_IOCTL(KDSKBDIACR)
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COMPATIBLE_IOCTL(KDGKBDIACRUC)
COMPATIBLE_IOCTL(KDSKBDIACRUC)
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COMPATIBLE_IOCTL(KDKBDREP)
COMPATIBLE_IOCTL(KDGKBLED)
COMPATIBLE_IOCTL(KDGETLED)
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#ifdef CONFIG_BLOCK
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/* 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)
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#endif
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/* Big V (don't complain on serial console) */
IGNORE_IOCTL(VT_OPENQRY)
IGNORE_IOCTL(VT_GETMODE)
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/* 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)
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#ifdef CONFIG_BLOCK
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/* md calls this on random blockdevs */
IGNORE_IOCTL(RAID_VERSION)
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/* qemu/qemu-img might call these two on plain files for probing */
IGNORE_IOCTL(CDROM_DRIVE_STATUS)
IGNORE_IOCTL(FDGETPRM32)
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/* 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)
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#endif
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/* 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)
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COMPATIBLE_IOCTL(PPPIOCGL2TPSTATS)
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/* PPPOX */
COMPATIBLE_IOCTL(PPPOEIOCSFWD)
COMPATIBLE_IOCTL(PPPOEIOCDFWD)
/* 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)
1212 1213
COMPATIBLE_IOCTL(WDIOC_SETPRETIMEOUT)
COMPATIBLE_IOCTL(WDIOC_GETPRETIMEOUT)
1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229
/* 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)
1230
COMPATIBLE_IOCTL(HCIGETAUTHINFO)
1231 1232 1233 1234 1235 1236 1237 1238 1239
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)
1240 1241
COMPATIBLE_IOCTL(HCIBLOCKADDR)
COMPATIBLE_IOCTL(HCIUNBLOCKADDR)
1242 1243 1244
COMPATIBLE_IOCTL(HCIINQUIRY)
COMPATIBLE_IOCTL(HCIUARTSETPROTO)
COMPATIBLE_IOCTL(HCIUARTGETPROTO)
1245 1246 1247
COMPATIBLE_IOCTL(HCIUARTGETDEVICE)
COMPATIBLE_IOCTL(HCIUARTSETFLAGS)
COMPATIBLE_IOCTL(HCIUARTGETFLAGS)
1248 1249 1250 1251 1252 1253 1254 1255 1256
COMPATIBLE_IOCTL(RFCOMMCREATEDEV)
COMPATIBLE_IOCTL(RFCOMMRELEASEDEV)
COMPATIBLE_IOCTL(RFCOMMGETDEVLIST)
COMPATIBLE_IOCTL(RFCOMMGETDEVINFO)
COMPATIBLE_IOCTL(RFCOMMSTEALDLC)
COMPATIBLE_IOCTL(BNEPCONNADD)
COMPATIBLE_IOCTL(BNEPCONNDEL)
COMPATIBLE_IOCTL(BNEPGETCONNLIST)
COMPATIBLE_IOCTL(BNEPGETCONNINFO)
1257
COMPATIBLE_IOCTL(BNEPGETSUPPFEAT)
1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382
COMPATIBLE_IOCTL(CMTPCONNADD)
COMPATIBLE_IOCTL(CMTPCONNDEL)
COMPATIBLE_IOCTL(CMTPGETCONNLIST)
COMPATIBLE_IOCTL(CMTPGETCONNINFO)
COMPATIBLE_IOCTL(HIDPCONNADD)
COMPATIBLE_IOCTL(HIDPCONNDEL)
COMPATIBLE_IOCTL(HIDPGETCONNLIST)
COMPATIBLE_IOCTL(HIDPGETCONNINFO)
/* 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)
/* Siemens Gigaset */
COMPATIBLE_IOCTL(GIGASET_REDIR)
COMPATIBLE_IOCTL(GIGASET_CONFIG)
COMPATIBLE_IOCTL(GIGASET_BRKCHARS)
COMPATIBLE_IOCTL(GIGASET_VERSION)
/* 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)
/* i2c */
COMPATIBLE_IOCTL(I2C_SLAVE)
COMPATIBLE_IOCTL(I2C_SLAVE_FORCE)
COMPATIBLE_IOCTL(I2C_TENBIT)
COMPATIBLE_IOCTL(I2C_PEC)
COMPATIBLE_IOCTL(I2C_RETRIES)
COMPATIBLE_IOCTL(I2C_TIMEOUT)
/* 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)
/* dvb */
COMPATIBLE_IOCTL(AUDIO_STOP)
COMPATIBLE_IOCTL(AUDIO_PLAY)
COMPATIBLE_IOCTL(AUDIO_PAUSE)
COMPATIBLE_IOCTL(AUDIO_CONTINUE)
COMPATIBLE_IOCTL(AUDIO_SELECT_SOURCE)
COMPATIBLE_IOCTL(AUDIO_SET_MUTE)
COMPATIBLE_IOCTL(AUDIO_SET_AV_SYNC)
COMPATIBLE_IOCTL(AUDIO_SET_BYPASS_MODE)
COMPATIBLE_IOCTL(AUDIO_CHANNEL_SELECT)
COMPATIBLE_IOCTL(AUDIO_GET_STATUS)
COMPATIBLE_IOCTL(AUDIO_GET_CAPABILITIES)
COMPATIBLE_IOCTL(AUDIO_CLEAR_BUFFER)
COMPATIBLE_IOCTL(AUDIO_SET_ID)
COMPATIBLE_IOCTL(AUDIO_SET_MIXER)
COMPATIBLE_IOCTL(AUDIO_SET_STREAMTYPE)
COMPATIBLE_IOCTL(AUDIO_SET_EXT_ID)
COMPATIBLE_IOCTL(AUDIO_SET_ATTRIBUTES)
COMPATIBLE_IOCTL(AUDIO_SET_KARAOKE)
COMPATIBLE_IOCTL(DMX_START)
COMPATIBLE_IOCTL(DMX_STOP)
COMPATIBLE_IOCTL(DMX_SET_FILTER)
COMPATIBLE_IOCTL(DMX_SET_PES_FILTER)
COMPATIBLE_IOCTL(DMX_SET_BUFFER_SIZE)
COMPATIBLE_IOCTL(DMX_GET_PES_PIDS)
COMPATIBLE_IOCTL(DMX_GET_CAPS)
COMPATIBLE_IOCTL(DMX_SET_SOURCE)
COMPATIBLE_IOCTL(DMX_GET_STC)
COMPATIBLE_IOCTL(FE_GET_INFO)
COMPATIBLE_IOCTL(FE_DISEQC_RESET_OVERLOAD)
COMPATIBLE_IOCTL(FE_DISEQC_SEND_MASTER_CMD)
COMPATIBLE_IOCTL(FE_DISEQC_RECV_SLAVE_REPLY)
COMPATIBLE_IOCTL(FE_DISEQC_SEND_BURST)
COMPATIBLE_IOCTL(FE_SET_TONE)
COMPATIBLE_IOCTL(FE_SET_VOLTAGE)
COMPATIBLE_IOCTL(FE_ENABLE_HIGH_LNB_VOLTAGE)
COMPATIBLE_IOCTL(FE_READ_STATUS)
COMPATIBLE_IOCTL(FE_READ_BER)
COMPATIBLE_IOCTL(FE_READ_SIGNAL_STRENGTH)
COMPATIBLE_IOCTL(FE_READ_SNR)
COMPATIBLE_IOCTL(FE_READ_UNCORRECTED_BLOCKS)
COMPATIBLE_IOCTL(FE_SET_FRONTEND)
COMPATIBLE_IOCTL(FE_GET_FRONTEND)
COMPATIBLE_IOCTL(FE_GET_EVENT)
COMPATIBLE_IOCTL(FE_DISHNETWORK_SEND_LEGACY_CMD)
COMPATIBLE_IOCTL(VIDEO_STOP)
COMPATIBLE_IOCTL(VIDEO_PLAY)
COMPATIBLE_IOCTL(VIDEO_FREEZE)
COMPATIBLE_IOCTL(VIDEO_CONTINUE)
COMPATIBLE_IOCTL(VIDEO_SELECT_SOURCE)
COMPATIBLE_IOCTL(VIDEO_SET_BLANK)
COMPATIBLE_IOCTL(VIDEO_GET_STATUS)
COMPATIBLE_IOCTL(VIDEO_SET_DISPLAY_FORMAT)
COMPATIBLE_IOCTL(VIDEO_FAST_FORWARD)
COMPATIBLE_IOCTL(VIDEO_SLOWMOTION)
COMPATIBLE_IOCTL(VIDEO_GET_CAPABILITIES)
COMPATIBLE_IOCTL(VIDEO_CLEAR_BUFFER)
COMPATIBLE_IOCTL(VIDEO_SET_ID)
COMPATIBLE_IOCTL(VIDEO_SET_STREAMTYPE)
COMPATIBLE_IOCTL(VIDEO_SET_FORMAT)
COMPATIBLE_IOCTL(VIDEO_SET_SYSTEM)
COMPATIBLE_IOCTL(VIDEO_SET_HIGHLIGHT)
COMPATIBLE_IOCTL(VIDEO_SET_SPU)
COMPATIBLE_IOCTL(VIDEO_GET_NAVI)
COMPATIBLE_IOCTL(VIDEO_SET_ATTRIBUTES)
COMPATIBLE_IOCTL(VIDEO_GET_SIZE)
COMPATIBLE_IOCTL(VIDEO_GET_FRAME_RATE)
1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393
/* cec */
COMPATIBLE_IOCTL(CEC_ADAP_G_CAPS)
COMPATIBLE_IOCTL(CEC_ADAP_G_LOG_ADDRS)
COMPATIBLE_IOCTL(CEC_ADAP_S_LOG_ADDRS)
COMPATIBLE_IOCTL(CEC_ADAP_G_PHYS_ADDR)
COMPATIBLE_IOCTL(CEC_ADAP_S_PHYS_ADDR)
COMPATIBLE_IOCTL(CEC_G_MODE)
COMPATIBLE_IOCTL(CEC_S_MODE)
COMPATIBLE_IOCTL(CEC_TRANSMIT)
COMPATIBLE_IOCTL(CEC_RECEIVE)
COMPATIBLE_IOCTL(CEC_DQEVENT)
1394

1395 1396 1397 1398 1399 1400
/* joystick */
COMPATIBLE_IOCTL(JSIOCGVERSION)
COMPATIBLE_IOCTL(JSIOCGAXES)
COMPATIBLE_IOCTL(JSIOCGBUTTONS)
COMPATIBLE_IOCTL(JSIOCGNAME(0))

1401 1402 1403 1404
#ifdef TIOCGLTC
COMPATIBLE_IOCTL(TIOCGLTC)
COMPATIBLE_IOCTL(TIOCSLTC)
#endif
1405 1406
#ifdef TIOCSTART
/*
1407
 * For these two we have definitions in ioctls.h and/or termios.h on
1408 1409 1410 1411 1412 1413 1414
 * some architectures but no actual implemention.  Some applications
 * like bash call them if they are defined in the headers, so we provide
 * entries here to avoid syslog message spew.
 */
COMPATIBLE_IOCTL(TIOCSTART)
COMPATIBLE_IOCTL(TIOCSTOP)
#endif
1415

1416 1417 1418 1419 1420 1421 1422 1423
/* 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)
1424

1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439
#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
1440
};
1441

1442 1443 1444 1445 1446 1447 1448
/*
 * 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.
 */
1449
static long do_ioctl_trans(unsigned int cmd,
1450 1451
		 unsigned long arg, struct file *file)
{
1452 1453
	void __user *argp = compat_ptr(arg);

1454 1455
	switch (cmd) {
	case PPPIOCGIDLE32:
1456
		return ppp_gidle(file, cmd, argp);
1457
	case PPPIOCSCOMPRESS32:
1458
		return ppp_scompress(file, cmd, argp);
1459 1460
	case PPPIOCSPASS32:
	case PPPIOCSACTIVE32:
1461
		return ppp_sock_fprog_ioctl_trans(file, cmd, argp);
1462 1463
#ifdef CONFIG_BLOCK
	case SG_IO:
1464
		return sg_ioctl_trans(file, cmd, argp);
1465
	case SG_GET_REQUEST_TABLE:
1466
		return sg_grt_trans(file, cmd, argp);
1467 1468
	case MTIOCGET32:
	case MTIOCPOS32:
1469
		return mt_ioctl_trans(file, cmd, argp);
1470 1471 1472 1473
#endif
	/* Serial */
	case TIOCGSERIAL:
	case TIOCSSERIAL:
1474
		return serial_struct_ioctl(file, cmd, argp);
1475 1476
	/* i2c */
	case I2C_FUNCS:
1477
		return w_long(file, cmd, argp);
1478
	case I2C_RDWR:
1479
		return do_i2c_rdwr_ioctl(file, cmd, argp);
1480
	case I2C_SMBUS:
1481
		return do_i2c_smbus_ioctl(file, cmd, argp);
1482 1483 1484 1485 1486
	/* Not implemented in the native kernel */
	case RTC_IRQP_READ32:
	case RTC_IRQP_SET32:
	case RTC_EPOCH_READ32:
	case RTC_EPOCH_SET32:
1487
		return rtc_ioctl(file, cmd, argp);
1488 1489 1490

	/* dvb */
	case VIDEO_GET_EVENT:
1491
		return do_video_get_event(file, cmd, argp);
1492
	case VIDEO_STILLPICTURE:
1493
		return do_video_stillpicture(file, cmd, argp);
1494
	case VIDEO_SET_SPU_PALETTE:
1495
		return do_video_set_spu_palette(file, cmd, argp);
1496
	}
1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520

	/*
	 * These take an integer instead of a pointer as 'arg',
	 * so we must not do a compat_ptr() translation.
	 */
	switch (cmd) {
	/* Big T */
	case TCSBRKP:
	case TIOCMIWAIT:
	case TIOCSCTTY:
	/* RAID */
	case HOT_REMOVE_DISK:
	case HOT_ADD_DISK:
	case SET_DISK_FAULTY:
	case SET_BITMAP_FILE:
	/* Big K */
	case KDSIGACCEPT:
	case KIOCSOUND:
	case KDMKTONE:
	case KDSETMODE:
	case KDSKBMODE:
	case KDSKBMETA:
	case KDSKBLED:
	case KDSETLED:
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		return vfs_ioctl(file, cmd, arg);
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	}

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	return -ENOIOCTLCMD;
}

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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;
}

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COMPAT_SYSCALL_DEFINE3(ioctl, unsigned int, fd, unsigned int, cmd,
		       compat_ulong_t, arg32)
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{
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	unsigned long arg = arg32;
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	struct fd f = fdget(fd);
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	int error = -EBADF;
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	if (!f.file)
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		goto out;

	/* RED-PEN how should LSM module know it's handling 32bit? */
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	error = security_file_ioctl(f.file, cmd, arg);
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	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;

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#if defined(CONFIG_IA64) || defined(CONFIG_X86_64)
	case FS_IOC_RESVSP_32:
	case FS_IOC_RESVSP64_32:
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		error = compat_ioctl_preallocate(f.file, compat_ptr(arg));
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		goto out_fput;
#else
	case FS_IOC_RESVSP:
	case FS_IOC_RESVSP64:
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		error = ioctl_preallocate(f.file, compat_ptr(arg));
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		goto out_fput;
#endif

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	case FICLONE:
	case FICLONERANGE:
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	case FIDEDUPERANGE:
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		goto do_ioctl;

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	case FIBMAP:
	case FIGETBSZ:
	case FIONREAD:
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		if (S_ISREG(file_inode(f.file)->i_mode))
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			break;
		/*FALL THROUGH*/

	default:
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		if (f.file->f_op->compat_ioctl) {
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			error = f.file->f_op->compat_ioctl(f.file, cmd, arg);
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			if (error != -ENOIOCTLCMD)
				goto out_fput;
		}

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		if (!f.file->f_op->unlocked_ioctl)
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			goto do_ioctl;
		break;
	}

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	if (compat_ioctl_check_table(XFORM(cmd)))
		goto found_handler;
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	error = do_ioctl_trans(cmd, arg, f.file);
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	if (error == -ENOIOCTLCMD)
		error = -ENOTTY;
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	goto out_fput;

 found_handler:
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	arg = (unsigned long)compat_ptr(arg);
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 do_ioctl:
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	error = do_vfs_ioctl(f.file, fd, cmd, arg);
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 out_fput:
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	fdput(f);
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 out:
	return error;
}

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static int __init init_sys32_ioctl_cmp(const void *p, const void *q)
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{
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	unsigned int a, b;
	a = *(unsigned int *)p;
	b = *(unsigned int *)q;
	if (a > b)
		return 1;
	if (a < b)
		return -1;
	return 0;
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}

static int __init init_sys32_ioctl(void)
{
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	sort(ioctl_pointer, ARRAY_SIZE(ioctl_pointer), sizeof(*ioctl_pointer),
		init_sys32_ioctl_cmp, NULL);
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	return 0;
}
__initcall(init_sys32_ioctl);