compat_ioctl.c 83.8 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 
 * Copyright (C) 2003       Pavel Machek (pavel@suse.cz)
 *
 * These routines maintain argument size conversion between 32bit and 64bit
 * ioctls.
 */

#include <linux/config.h>
#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/smp_lock.h>
#include <linux/ioctl.h>
#include <linux/if.h>
#include <linux/if_bridge.h>
#include <linux/slab.h>
#include <linux/hdreg.h>
#include <linux/raid/md.h>
#include <linux/kd.h>
#include <linux/dirent.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>
#include <linux/fs.h>
#include <linux/file.h>
#include <linux/fd.h>
#include <linux/ppp_defs.h>
#include <linux/if_ppp.h>
#include <linux/if_pppox.h>
#include <linux/mtio.h>
#include <linux/cdrom.h>
#include <linux/loop.h>
#include <linux/auto_fs.h>
#include <linux/auto_fs4.h>
#include <linux/devfs_fs.h>
#include <linux/tty.h>
#include <linux/vt_kern.h>
#include <linux/fb.h>
#include <linux/ext2_fs.h>
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#include <linux/ext3_jbd.h>
#include <linux/ext3_fs.h>
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#include <linux/videodev.h>
#include <linux/netdevice.h>
#include <linux/raw.h>
#include <linux/smb_fs.h>
#include <linux/blkpg.h>
#include <linux/blkdev.h>
#include <linux/elevator.h>
#include <linux/rtc.h>
#include <linux/pci.h>
#include <linux/module.h>
#include <linux/serial.h>
#include <linux/reiserfs_fs.h>
#include <linux/if_tun.h>
#include <linux/ctype.h>
#include <linux/ioctl32.h>
#include <linux/syscalls.h>
#include <linux/ncp_fs.h>
#include <linux/i2c.h>
#include <linux/i2c-dev.h>
#include <linux/wireless.h>
#include <linux/atalk.h>

#include <net/sock.h>          /* siocdevprivate_ioctl */
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci.h>
#include <net/bluetooth/rfcomm.h>

#include <linux/capi.h>

#include <scsi/scsi.h>
#include <scsi/scsi_ioctl.h>
#include <scsi/sg.h>

#include <asm/uaccess.h>
#include <linux/ethtool.h>
#include <linux/mii.h>
#include <linux/if_bonding.h>
#include <linux/watchdog.h>
#include <linux/dm-ioctl.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/mtd/mtd.h>

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

#include <linux/hiddev.h>

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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/lp.h>
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/* Aiee. Someone does not find a difference between int and long */
#define EXT2_IOC32_GETFLAGS               _IOR('f', 1, int)
#define EXT2_IOC32_SETFLAGS               _IOW('f', 2, int)
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#define EXT3_IOC32_GETVERSION             _IOR('f', 3, int)
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#define EXT3_IOC32_SETVERSION             _IOW('f', 4, int)
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#define EXT3_IOC32_GETRSVSZ               _IOR('f', 5, int)
#define EXT3_IOC32_SETRSVSZ               _IOW('f', 6, int)
#define EXT3_IOC32_GROUP_EXTEND           _IOW('f', 7, unsigned int)
#ifdef CONFIG_JBD_DEBUG
#define EXT3_IOC32_WAIT_FOR_READONLY      _IOR('f', 99, int)
#endif

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#define EXT2_IOC32_GETVERSION             _IOR('v', 1, int)
#define EXT2_IOC32_SETVERSION             _IOW('v', 2, int)

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static int do_ioctl32_pointer(unsigned int fd, unsigned int cmd,
			      unsigned long arg, struct file *f)
{
	return sys_ioctl(fd, cmd, (unsigned long)compat_ptr(arg));
}

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static int w_long(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	mm_segment_t old_fs = get_fs();
	int err;
	unsigned long val;
	
	set_fs (KERNEL_DS);
	err = sys_ioctl(fd, cmd, (unsigned long)&val);
	set_fs (old_fs);
	if (!err && put_user(val, (u32 __user *)compat_ptr(arg)))
		return -EFAULT;
	return err;
}
 
static int rw_long(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	mm_segment_t old_fs = get_fs();
	u32 __user *argptr = compat_ptr(arg);
	int err;
	unsigned long val;
	
	if(get_user(val, argptr))
		return -EFAULT;
	set_fs (KERNEL_DS);
	err = sys_ioctl(fd, cmd, (unsigned long)&val);
	set_fs (old_fs);
	if (!err && put_user(val, argptr))
		return -EFAULT;
	return err;
}

static int do_ext2_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	/* These are just misnamed, they actually get/put from/to user an int */
	switch (cmd) {
	case EXT2_IOC32_GETFLAGS: cmd = EXT2_IOC_GETFLAGS; break;
	case EXT2_IOC32_SETFLAGS: cmd = EXT2_IOC_SETFLAGS; break;
	case EXT2_IOC32_GETVERSION: cmd = EXT2_IOC_GETVERSION; break;
	case EXT2_IOC32_SETVERSION: cmd = EXT2_IOC_SETVERSION; break;
	}
	return sys_ioctl(fd, cmd, (unsigned long)compat_ptr(arg));
}

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static int do_ext3_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	/* These are just misnamed, they actually get/put from/to user an int */
	switch (cmd) {
	case EXT3_IOC32_GETVERSION: cmd = EXT3_IOC_GETVERSION; break;
	case EXT3_IOC32_SETVERSION: cmd = EXT3_IOC_SETVERSION; break;
	case EXT3_IOC32_GETRSVSZ: cmd = EXT3_IOC_GETRSVSZ; break;
	case EXT3_IOC32_SETRSVSZ: cmd = EXT3_IOC_SETRSVSZ; break;
	case EXT3_IOC32_GROUP_EXTEND: cmd = EXT3_IOC_GROUP_EXTEND; break;
#ifdef CONFIG_JBD_DEBUG
	case EXT3_IOC32_WAIT_FOR_READONLY: cmd = EXT3_IOC_WAIT_FOR_READONLY; break;
#endif
	}
	return sys_ioctl(fd, cmd, (unsigned long)compat_ptr(arg));
}

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struct compat_dmx_event {
	dmx_event_t	event;
	compat_time_t	timeStamp;
	union
	{
		dmx_scrambling_status_t scrambling;
	} u;
};

static int do_dmx_get_event(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	struct dmx_event kevent;
	mm_segment_t old_fs = get_fs();
	int err;

	set_fs(KERNEL_DS);
	err = sys_ioctl(fd, cmd, (unsigned long) &kevent);
	set_fs(old_fs);

	if (!err) {
		struct compat_dmx_event __user *up = compat_ptr(arg);

		err  = put_user(kevent.event, &up->event);
		err |= put_user(kevent.timeStamp, &up->timeStamp);
		err |= put_user(kevent.u.scrambling, &up->u.scrambling);
		if (err)
			err = -EFAULT;
	}

	return err;
}

struct compat_video_event {
	int32_t		type;
	compat_time_t	timestamp;
	union {
	        video_size_t size;
		unsigned int frame_rate;
	} u;
};

static int do_video_get_event(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	struct video_event kevent;
	mm_segment_t old_fs = get_fs();
	int err;

	set_fs(KERNEL_DS);
	err = sys_ioctl(fd, cmd, (unsigned long) &kevent);
	set_fs(old_fs);

	if (!err) {
		struct compat_video_event __user *up = compat_ptr(arg);

		err  = put_user(kevent.type, &up->type);
		err |= put_user(kevent.timestamp, &up->timestamp);
		err |= put_user(kevent.u.size.w, &up->u.size.w);
		err |= put_user(kevent.u.size.h, &up->u.size.h);
		err |= put_user(kevent.u.size.aspect_ratio,
				&up->u.size.aspect_ratio);
		if (err)
			err = -EFAULT;
	}

	return err;
}

struct compat_video_still_picture {
        compat_uptr_t iFrame;
        int32_t size;
};

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

	up = (struct compat_video_still_picture __user *) arg;
	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));

	put_user(compat_ptr(fp), &up_native->iFrame);
	put_user(size, &up_native->size);

	err = sys_ioctl(fd, cmd, (unsigned long) up_native);

	return err;
}

struct compat_video_spu_palette {
	int length;
	compat_uptr_t palette;
};

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

	up = (struct compat_video_spu_palette __user *) arg;
	err  = get_user(palp, &up->palette);
	err |= get_user(length, &up->length);

	up_native = compat_alloc_user_space(sizeof(struct video_spu_palette));
	put_user(compat_ptr(palp), &up_native->palette);
	put_user(length, &up_native->length);

	err = sys_ioctl(fd, cmd, (unsigned long) up_native);

	return err;
}

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#ifdef CONFIG_NET
static int do_siocgstamp(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	struct compat_timeval __user *up = compat_ptr(arg);
	struct timeval ktv;
	mm_segment_t old_fs = get_fs();
	int err;

	set_fs(KERNEL_DS);
	err = sys_ioctl(fd, cmd, (unsigned long)&ktv);
	set_fs(old_fs);
	if(!err) {
		err = put_user(ktv.tv_sec, &up->tv_sec);
		err |= __put_user(ktv.tv_usec, &up->tv_usec);
	}
	return err;
}

struct ifmap32 {
	compat_ulong_t mem_start;
	compat_ulong_t mem_end;
	unsigned short base_addr;
	unsigned char irq;
	unsigned char dma;
	unsigned char port;
};

struct ifreq32 {
#define IFHWADDRLEN     6
#define IFNAMSIZ        16
        union {
                char    ifrn_name[IFNAMSIZ];            /* if name, e.g. "en0" */
        } ifr_ifrn;
        union {
                struct  sockaddr ifru_addr;
                struct  sockaddr ifru_dstaddr;
                struct  sockaddr ifru_broadaddr;
                struct  sockaddr ifru_netmask;
                struct  sockaddr ifru_hwaddr;
                short   ifru_flags;
                compat_int_t     ifru_ivalue;
                compat_int_t     ifru_mtu;
                struct  ifmap32 ifru_map;
                char    ifru_slave[IFNAMSIZ];   /* Just fits the size */
		char	ifru_newname[IFNAMSIZ];
                compat_caddr_t ifru_data;
	    /* XXXX? ifru_settings should be here */
        } ifr_ifru;
};

struct ifconf32 {
        compat_int_t	ifc_len;                        /* size of buffer       */
        compat_caddr_t  ifcbuf;
};

static int dev_ifname32(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	struct net_device *dev;
	struct ifreq32 ifr32;
	int err;

	if (copy_from_user(&ifr32, compat_ptr(arg), sizeof(ifr32)))
		return -EFAULT;

	dev = dev_get_by_index(ifr32.ifr_ifindex);
	if (!dev)
		return -ENODEV;

	strlcpy(ifr32.ifr_name, dev->name, sizeof(ifr32.ifr_name));
	dev_put(dev);
	
	err = copy_to_user(compat_ptr(arg), &ifr32, sizeof(ifr32));
	return (err ? -EFAULT : 0);
}

static int dev_ifconf(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	struct ifconf32 ifc32;
	struct ifconf ifc;
	struct ifconf __user *uifc;
	struct ifreq32 __user *ifr32;
	struct ifreq __user *ifr;
	unsigned int i, j;
	int err;

	if (copy_from_user(&ifc32, compat_ptr(arg), sizeof(struct ifconf32)))
		return -EFAULT;

	if (ifc32.ifcbuf == 0) {
		ifc32.ifc_len = 0;
		ifc.ifc_len = 0;
		ifc.ifc_req = NULL;
		uifc = compat_alloc_user_space(sizeof(struct ifconf));
	} else {
		size_t len =((ifc32.ifc_len / sizeof (struct ifreq32)) + 1) *
			sizeof (struct ifreq);
		uifc = compat_alloc_user_space(sizeof(struct ifconf) + len);
		ifc.ifc_len = len;
		ifr = ifc.ifc_req = (void __user *)(uifc + 1);
		ifr32 = compat_ptr(ifc32.ifcbuf);
		for (i = 0; i < ifc32.ifc_len; i += sizeof (struct ifreq32)) {
			if (copy_in_user(ifr, ifr32, sizeof(struct ifreq32)))
				return -EFAULT;
			ifr++;
			ifr32++; 
		}
	}
	if (copy_to_user(uifc, &ifc, sizeof(struct ifconf)))
		return -EFAULT;

	err = sys_ioctl (fd, SIOCGIFCONF, (unsigned long)uifc);	
	if (err)
		return err;

	if (copy_from_user(&ifc, uifc, sizeof(struct ifconf))) 
		return -EFAULT;

	ifr = ifc.ifc_req;
	ifr32 = compat_ptr(ifc32.ifcbuf);
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	for (i = 0, j = 0;
             i + sizeof (struct ifreq32) < ifc32.ifc_len && j < ifc.ifc_len;
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	     i += sizeof (struct ifreq32), j += sizeof (struct ifreq)) {
		if (copy_in_user(ifr32, ifr, sizeof (struct ifreq32)))
			return -EFAULT;
		ifr32++;
		ifr++;
	}

	if (ifc32.ifcbuf == 0) {
		/* Translate from 64-bit structure multiple to
		 * a 32-bit one.
		 */
		i = ifc.ifc_len;
		i = ((i / sizeof(struct ifreq)) * sizeof(struct ifreq32));
		ifc32.ifc_len = i;
	} else {
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		ifc32.ifc_len = i;
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	}
	if (copy_to_user(compat_ptr(arg), &ifc32, sizeof(struct ifconf32)))
		return -EFAULT;

	return 0;
}

static int ethtool_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	struct ifreq __user *ifr;
	struct ifreq32 __user *ifr32;
	u32 data;
	void __user *datap;
	
	ifr = compat_alloc_user_space(sizeof(*ifr));
	ifr32 = compat_ptr(arg);

	if (copy_in_user(&ifr->ifr_name, &ifr32->ifr_name, IFNAMSIZ))
		return -EFAULT;

	if (get_user(data, &ifr32->ifr_ifru.ifru_data))
		return -EFAULT;

	datap = compat_ptr(data);
	if (put_user(datap, &ifr->ifr_ifru.ifru_data))
		return -EFAULT;

	return sys_ioctl(fd, cmd, (unsigned long) ifr);
}

static int bond_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	struct ifreq kifr;
	struct ifreq __user *uifr;
	struct ifreq32 __user *ifr32 = compat_ptr(arg);
	mm_segment_t old_fs;
	int err;
	u32 data;
	void __user *datap;

	switch (cmd) {
	case SIOCBONDENSLAVE:
	case SIOCBONDRELEASE:
	case SIOCBONDSETHWADDR:
	case SIOCBONDCHANGEACTIVE:
		if (copy_from_user(&kifr, ifr32, sizeof(struct ifreq32)))
			return -EFAULT;

		old_fs = get_fs();
		set_fs (KERNEL_DS);
		err = sys_ioctl (fd, cmd, (unsigned long)&kifr);
		set_fs (old_fs);

		return err;
	case SIOCBONDSLAVEINFOQUERY:
	case SIOCBONDINFOQUERY:
		uifr = compat_alloc_user_space(sizeof(*uifr));
		if (copy_in_user(&uifr->ifr_name, &ifr32->ifr_name, IFNAMSIZ))
			return -EFAULT;

		if (get_user(data, &ifr32->ifr_ifru.ifru_data))
			return -EFAULT;

		datap = compat_ptr(data);
		if (put_user(datap, &uifr->ifr_ifru.ifru_data))
			return -EFAULT;

		return sys_ioctl (fd, cmd, (unsigned long)uifr);
	default:
		return -EINVAL;
	};
}

int siocdevprivate_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	struct ifreq __user *u_ifreq64;
	struct ifreq32 __user *u_ifreq32 = compat_ptr(arg);
	char tmp_buf[IFNAMSIZ];
	void __user *data64;
	u32 data32;

	if (copy_from_user(&tmp_buf[0], &(u_ifreq32->ifr_ifrn.ifrn_name[0]),
			   IFNAMSIZ))
		return -EFAULT;
	if (__get_user(data32, &u_ifreq32->ifr_ifru.ifru_data))
		return -EFAULT;
	data64 = compat_ptr(data32);

	u_ifreq64 = compat_alloc_user_space(sizeof(*u_ifreq64));

	/* Don't check these user accesses, just let that get trapped
	 * in the ioctl handler instead.
	 */
	if (copy_to_user(&u_ifreq64->ifr_ifrn.ifrn_name[0], &tmp_buf[0],
			 IFNAMSIZ))
		return -EFAULT;
	if (__put_user(data64, &u_ifreq64->ifr_ifru.ifru_data))
		return -EFAULT;

	return sys_ioctl(fd, cmd, (unsigned long) u_ifreq64);
}

static int dev_ifsioc(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	struct ifreq ifr;
	struct ifreq32 __user *uifr32;
	struct ifmap32 __user *uifmap32;
	mm_segment_t old_fs;
	int err;
	
	uifr32 = compat_ptr(arg);
	uifmap32 = &uifr32->ifr_ifru.ifru_map;
	switch (cmd) {
	case SIOCSIFMAP:
		err = copy_from_user(&ifr, uifr32, sizeof(ifr.ifr_name));
		err |= __get_user(ifr.ifr_map.mem_start, &uifmap32->mem_start);
		err |= __get_user(ifr.ifr_map.mem_end, &uifmap32->mem_end);
		err |= __get_user(ifr.ifr_map.base_addr, &uifmap32->base_addr);
		err |= __get_user(ifr.ifr_map.irq, &uifmap32->irq);
		err |= __get_user(ifr.ifr_map.dma, &uifmap32->dma);
		err |= __get_user(ifr.ifr_map.port, &uifmap32->port);
		if (err)
			return -EFAULT;
		break;
	default:
		if (copy_from_user(&ifr, uifr32, sizeof(*uifr32)))
			return -EFAULT;
		break;
	}
	old_fs = get_fs();
	set_fs (KERNEL_DS);
	err = sys_ioctl (fd, cmd, (unsigned long)&ifr);
	set_fs (old_fs);
	if (!err) {
		switch (cmd) {
		/* TUNSETIFF is defined as _IOW, it should be _IORW
		 * as the data is copied back to user space, but that
		 * cannot be fixed without breaking all existing apps.
		 */
		case TUNSETIFF:
		case SIOCGIFFLAGS:
		case SIOCGIFMETRIC:
		case SIOCGIFMTU:
		case SIOCGIFMEM:
		case SIOCGIFHWADDR:
		case SIOCGIFINDEX:
		case SIOCGIFADDR:
		case SIOCGIFBRDADDR:
		case SIOCGIFDSTADDR:
		case SIOCGIFNETMASK:
		case SIOCGIFTXQLEN:
			if (copy_to_user(uifr32, &ifr, sizeof(*uifr32)))
				return -EFAULT;
			break;
		case SIOCGIFMAP:
			err = copy_to_user(uifr32, &ifr, sizeof(ifr.ifr_name));
			err |= __put_user(ifr.ifr_map.mem_start, &uifmap32->mem_start);
			err |= __put_user(ifr.ifr_map.mem_end, &uifmap32->mem_end);
			err |= __put_user(ifr.ifr_map.base_addr, &uifmap32->base_addr);
			err |= __put_user(ifr.ifr_map.irq, &uifmap32->irq);
			err |= __put_user(ifr.ifr_map.dma, &uifmap32->dma);
			err |= __put_user(ifr.ifr_map.port, &uifmap32->port);
			if (err)
				err = -EFAULT;
			break;
		}
	}
	return err;
}

struct rtentry32 {
        u32   		rt_pad1;
        struct sockaddr rt_dst;         /* target address               */
        struct sockaddr rt_gateway;     /* gateway addr (RTF_GATEWAY)   */
        struct sockaddr rt_genmask;     /* target network mask (IP)     */
        unsigned short  rt_flags;
        short           rt_pad2;
        u32   		rt_pad3;
        unsigned char   rt_tos;
        unsigned char   rt_class;
        short           rt_pad4;
        short           rt_metric;      /* +1 for binary compatibility! */
        /* char * */ u32 rt_dev;        /* forcing the device at add    */
        u32   		rt_mtu;         /* per route MTU/Window         */
        u32   		rt_window;      /* Window clamping              */
        unsigned short  rt_irtt;        /* Initial RTT                  */

};

struct in6_rtmsg32 {
	struct in6_addr		rtmsg_dst;
	struct in6_addr		rtmsg_src;
	struct in6_addr		rtmsg_gateway;
	u32			rtmsg_type;
	u16			rtmsg_dst_len;
	u16			rtmsg_src_len;
	u32			rtmsg_metric;
	u32			rtmsg_info;
	u32			rtmsg_flags;
	s32			rtmsg_ifindex;
};

static int routing_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	int ret;
	void *r = NULL;
	struct in6_rtmsg r6;
	struct rtentry r4;
	char devname[16];
	u32 rtdev;
	mm_segment_t old_fs = get_fs();
	
	struct socket *mysock = sockfd_lookup(fd, &ret);

	if (mysock && mysock->sk && mysock->sk->sk_family == AF_INET6) { /* ipv6 */
		struct in6_rtmsg32 __user *ur6 = compat_ptr(arg);
		ret = copy_from_user (&r6.rtmsg_dst, &(ur6->rtmsg_dst),
			3 * sizeof(struct in6_addr));
		ret |= __get_user (r6.rtmsg_type, &(ur6->rtmsg_type));
		ret |= __get_user (r6.rtmsg_dst_len, &(ur6->rtmsg_dst_len));
		ret |= __get_user (r6.rtmsg_src_len, &(ur6->rtmsg_src_len));
		ret |= __get_user (r6.rtmsg_metric, &(ur6->rtmsg_metric));
		ret |= __get_user (r6.rtmsg_info, &(ur6->rtmsg_info));
		ret |= __get_user (r6.rtmsg_flags, &(ur6->rtmsg_flags));
		ret |= __get_user (r6.rtmsg_ifindex, &(ur6->rtmsg_ifindex));
		
		r = (void *) &r6;
	} else { /* ipv4 */
		struct rtentry32 __user *ur4 = compat_ptr(arg);
		ret = copy_from_user (&r4.rt_dst, &(ur4->rt_dst),
					3 * sizeof(struct sockaddr));
		ret |= __get_user (r4.rt_flags, &(ur4->rt_flags));
		ret |= __get_user (r4.rt_metric, &(ur4->rt_metric));
		ret |= __get_user (r4.rt_mtu, &(ur4->rt_mtu));
		ret |= __get_user (r4.rt_window, &(ur4->rt_window));
		ret |= __get_user (r4.rt_irtt, &(ur4->rt_irtt));
		ret |= __get_user (rtdev, &(ur4->rt_dev));
		if (rtdev) {
			ret |= copy_from_user (devname, compat_ptr(rtdev), 15);
			r4.rt_dev = devname; devname[15] = 0;
		} else
			r4.rt_dev = NULL;

		r = (void *) &r4;
	}

712 713 714 715
	if (ret) {
		ret = -EFAULT;
		goto out;
	}
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	set_fs (KERNEL_DS);
	ret = sys_ioctl (fd, cmd, (unsigned long) r);
	set_fs (old_fs);

721
out:
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	if (mysock)
		sockfd_put(mysock);

	return ret;
}
#endif

struct hd_geometry32 {
	unsigned char heads;
	unsigned char sectors;
	unsigned short cylinders;
	u32 start;
};
                        
static int hdio_getgeo(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	mm_segment_t old_fs = get_fs();
	struct hd_geometry geo;
	struct hd_geometry32 __user *ugeo;
	int err;
	
	set_fs (KERNEL_DS);
	err = sys_ioctl(fd, HDIO_GETGEO, (unsigned long)&geo);
	set_fs (old_fs);
	ugeo = compat_ptr(arg);
	if (!err) {
		err = copy_to_user (ugeo, &geo, 4);
		err |= __put_user (geo.start, &ugeo->start);
	}
	return err ? -EFAULT : 0;
}

static int hdio_ioctl_trans(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	mm_segment_t old_fs = get_fs();
	unsigned long kval;
	unsigned int __user *uvp;
	int error;

	set_fs(KERNEL_DS);
	error = sys_ioctl(fd, cmd, (long)&kval);
	set_fs(old_fs);

	if(error == 0) {
		uvp = compat_ptr(arg);
		if(put_user(kval, uvp))
			error = -EFAULT;
	}
	return error;
}


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(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	sg_io_hdr_t __user *sgio;
	sg_io_hdr32_t __user *sgio32;
	u16 iovec_count;
	u32 data;
	void __user *dxferp;
	int err;

	sgio32 = compat_ptr(arg);
	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;

	if (copy_in_user(&sgio->status, &sgio32->status,
			 (4 * sizeof(unsigned char)) +
			 (2 * sizeof(unsigned (short))) +
			 (3 * sizeof(int))))
		return -EFAULT;

	err = sys_ioctl(fd, 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;
}

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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;
};

static int sg_grt_trans(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	int err, i;
934 935
	sg_req_info_t __user *r;
	struct compat_sg_req_info __user *o = (void __user *)arg;
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	r = compat_alloc_user_space(sizeof(sg_req_info_t)*SG_MAX_QUEUE);
	err = sys_ioctl(fd,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;
}

L
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1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042
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(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	struct sock_fprog32 __user *u_fprog32 = compat_ptr(arg);
	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 sys_ioctl(fd, 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(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	struct ppp_idle __user *idle;
	struct ppp_idle32 __user *idle32;
	__kernel_time_t xmit, recv;
	int err;

	idle = compat_alloc_user_space(sizeof(*idle));
	idle32 = compat_ptr(arg);

	err = sys_ioctl(fd, 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(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	struct ppp_option_data __user *odata;
	struct ppp_option_data32 __user *odata32;
	__u32 data;
	void __user *datap;

	odata = compat_alloc_user_space(sizeof(*odata));
	odata32 = compat_ptr(arg);

	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 sys_ioctl(fd, PPPIOCSCOMPRESS, (unsigned long) odata);
}

static int ppp_ioctl_trans(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	int err;

	switch (cmd) {
	case PPPIOCGIDLE32:
		err = ppp_gidle(fd, cmd, arg);
		break;

	case PPPIOCSCOMPRESS32:
		err = ppp_scompress(fd, cmd, arg);
		break;

	default:
		do {
			static int count;
			if (++count <= 20)
				printk("ppp_ioctl: Unknown cmd fd(%d) "
				       "cmd(%08x) arg(%08x)\n",
				       (int)fd, (unsigned int)cmd, (unsigned int)arg);
		} while(0);
		err = -EINVAL;
		break;
	};

	return err;
}


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(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	mm_segment_t old_fs = get_fs();
	struct mtget get;
	struct mtget32 __user *umget32;
	struct mtpos pos;
	struct mtpos32 __user *upos32;
	unsigned long kcmd;
	void *karg;
	int err = 0;

	switch(cmd) {
	case MTIOCPOS32:
		kcmd = MTIOCPOS;
		karg = &pos;
		break;
	case MTIOCGET32:
		kcmd = MTIOCGET;
		karg = &get;
		break;
	default:
		do {
			static int count;
			if (++count <= 20)
				printk("mt_ioctl: Unknown cmd fd(%d) "
				       "cmd(%08x) arg(%08x)\n",
				       (int)fd, (unsigned int)cmd, (unsigned int)arg);
		} while(0);
		return -EINVAL;
	}
	set_fs (KERNEL_DS);
	err = sys_ioctl (fd, kcmd, (unsigned long)karg);
	set_fs (old_fs);
	if (err)
		return err;
	switch (cmd) {
	case MTIOCPOS32:
		upos32 = compat_ptr(arg);
		err = __put_user(pos.mt_blkno, &upos32->mt_blkno);
		break;
	case MTIOCGET32:
		umget32 = compat_ptr(arg);
		err = __put_user(get.mt_type, &umget32->mt_type);
		err |= __put_user(get.mt_resid, &umget32->mt_resid);
		err |= __put_user(get.mt_dsreg, &umget32->mt_dsreg);
		err |= __put_user(get.mt_gstat, &umget32->mt_gstat);
		err |= __put_user(get.mt_erreg, &umget32->mt_erreg);
		err |= __put_user(get.mt_fileno, &umget32->mt_fileno);
		err |= __put_user(get.mt_blkno, &umget32->mt_blkno);
		break;
	}
	return err ? -EFAULT: 0;
}

struct cdrom_read_audio32 {
	union cdrom_addr	addr;
	u8			addr_format;
	compat_int_t		nframes;
	compat_caddr_t		buf;
};

struct cdrom_generic_command32 {
	unsigned char	cmd[CDROM_PACKET_SIZE];
	compat_caddr_t	buffer;
	compat_uint_t	buflen;
	compat_int_t	stat;
	compat_caddr_t	sense;
	unsigned char	data_direction;
	compat_int_t	quiet;
	compat_int_t	timeout;
	compat_caddr_t	reserved[1];
};
  
static int cdrom_do_read_audio(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	struct cdrom_read_audio __user *cdread_audio;
	struct cdrom_read_audio32 __user *cdread_audio32;
	__u32 data;
	void __user *datap;

	cdread_audio = compat_alloc_user_space(sizeof(*cdread_audio));
	cdread_audio32 = compat_ptr(arg);

	if (copy_in_user(&cdread_audio->addr,
			 &cdread_audio32->addr,
			 (sizeof(*cdread_audio32) -
			  sizeof(compat_caddr_t))))
	 	return -EFAULT;

	if (get_user(data, &cdread_audio32->buf))
		return -EFAULT;
	datap = compat_ptr(data);
	if (put_user(datap, &cdread_audio->buf))
		return -EFAULT;

	return sys_ioctl(fd, cmd, (unsigned long) cdread_audio);
}

static int cdrom_do_generic_command(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	struct cdrom_generic_command __user *cgc;
	struct cdrom_generic_command32 __user *cgc32;
	u32 data;
	unsigned char dir;
	int itmp;

	cgc = compat_alloc_user_space(sizeof(*cgc));
	cgc32 = compat_ptr(arg);

	if (copy_in_user(&cgc->cmd, &cgc32->cmd, sizeof(cgc->cmd)) ||
	    get_user(data, &cgc32->buffer) ||
	    put_user(compat_ptr(data), &cgc->buffer) ||
	    copy_in_user(&cgc->buflen, &cgc32->buflen,
			 (sizeof(unsigned int) + sizeof(int))) ||
	    get_user(data, &cgc32->sense) ||
	    put_user(compat_ptr(data), &cgc->sense) ||
	    get_user(dir, &cgc32->data_direction) ||
	    put_user(dir, &cgc->data_direction) ||
	    get_user(itmp, &cgc32->quiet) ||
	    put_user(itmp, &cgc->quiet) ||
	    get_user(itmp, &cgc32->timeout) ||
	    put_user(itmp, &cgc->timeout) ||
	    get_user(data, &cgc32->reserved[0]) ||
	    put_user(compat_ptr(data), &cgc->reserved[0]))
		return -EFAULT;

	return sys_ioctl(fd, cmd, (unsigned long) cgc);
}

static int cdrom_ioctl_trans(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	int err;

	switch(cmd) {
	case CDROMREADAUDIO:
		err = cdrom_do_read_audio(fd, cmd, arg);
		break;

	case CDROM_SEND_PACKET:
		err = cdrom_do_generic_command(fd, cmd, arg);
		break;

	default:
		do {
			static int count;
			if (++count <= 20)
				printk("cdrom_ioctl: Unknown cmd fd(%d) "
				       "cmd(%08x) arg(%08x)\n",
				       (int)fd, (unsigned int)cmd, (unsigned int)arg);
		} while(0);
		err = -EINVAL;
		break;
	};

	return err;
}

struct loop_info32 {
	compat_int_t	lo_number;      /* ioctl r/o */
	compat_dev_t	lo_device;      /* ioctl r/o */
	compat_ulong_t	lo_inode;       /* ioctl r/o */
	compat_dev_t	lo_rdevice;     /* ioctl r/o */
	compat_int_t	lo_offset;
	compat_int_t	lo_encrypt_type;
	compat_int_t	lo_encrypt_key_size;    /* ioctl w/o */
	compat_int_t	lo_flags;       /* ioctl r/o */
	char		lo_name[LO_NAME_SIZE];
	unsigned char	lo_encrypt_key[LO_KEY_SIZE]; /* ioctl w/o */
	compat_ulong_t	lo_init[2];
	char		reserved[4];
};

static int loop_status(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	mm_segment_t old_fs = get_fs();
	struct loop_info l;
	struct loop_info32 __user *ul;
	int err = -EINVAL;

	ul = compat_ptr(arg);
	switch(cmd) {
	case LOOP_SET_STATUS:
		err = get_user(l.lo_number, &ul->lo_number);
		err |= __get_user(l.lo_device, &ul->lo_device);
		err |= __get_user(l.lo_inode, &ul->lo_inode);
		err |= __get_user(l.lo_rdevice, &ul->lo_rdevice);
		err |= __copy_from_user(&l.lo_offset, &ul->lo_offset,
		        8 + (unsigned long)l.lo_init - (unsigned long)&l.lo_offset);
		if (err) {
			err = -EFAULT;
		} else {
			set_fs (KERNEL_DS);
			err = sys_ioctl (fd, cmd, (unsigned long)&l);
			set_fs (old_fs);
		}
		break;
	case LOOP_GET_STATUS:
		set_fs (KERNEL_DS);
		err = sys_ioctl (fd, cmd, (unsigned long)&l);
		set_fs (old_fs);
		if (!err) {
			err = put_user(l.lo_number, &ul->lo_number);
			err |= __put_user(l.lo_device, &ul->lo_device);
			err |= __put_user(l.lo_inode, &ul->lo_inode);
			err |= __put_user(l.lo_rdevice, &ul->lo_rdevice);
			err |= __copy_to_user(&ul->lo_offset, &l.lo_offset,
				(unsigned long)l.lo_init - (unsigned long)&l.lo_offset);
			if (err)
				err = -EFAULT;
		}
		break;
	default: {
		static int count;
		if (++count <= 20)
			printk("%s: Unknown loop ioctl cmd, fd(%d) "
			       "cmd(%08x) arg(%08lx)\n",
			       __FUNCTION__, fd, cmd, arg);
	}
	}
	return err;
}

extern int tty_ioctl(struct inode * inode, struct file * file, unsigned int cmd, unsigned long arg);

#ifdef CONFIG_VT

static int vt_check(struct file *file)
{
	struct tty_struct *tty;
	struct inode *inode = file->f_dentry->d_inode;
	
	if (file->f_op->ioctl != tty_ioctl)
		return -EINVAL;
	                
	tty = (struct tty_struct *)file->private_data;
	if (tty_paranoia_check(tty, inode, "tty_ioctl"))
		return -EINVAL;
	                                                
	if (tty->driver->ioctl != vt_ioctl)
		return -EINVAL;
	
	/*
	 * To have permissions to do most of the vt ioctls, we either have
	 * to be the owner of the tty, or super-user.
	 */
	if (current->signal->tty == tty || capable(CAP_SYS_ADMIN))
		return 1;
	return 0;                                                    
}

struct consolefontdesc32 {
	unsigned short charcount;       /* characters in font (256 or 512) */
	unsigned short charheight;      /* scan lines per character (1-32) */
	compat_caddr_t chardata;	/* font data in expanded form */
};

static int do_fontx_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg, struct file *file)
{
	struct consolefontdesc32 __user *user_cfd = compat_ptr(arg);
	struct console_font_op op;
	compat_caddr_t data;
	int i, perm;

	perm = vt_check(file);
	if (perm < 0) return perm;
	
	switch (cmd) {
	case PIO_FONTX:
		if (!perm)
			return -EPERM;
		op.op = KD_FONT_OP_SET;
		op.flags = 0;
		op.width = 8;
		if (get_user(op.height, &user_cfd->charheight) ||
		    get_user(op.charcount, &user_cfd->charcount) ||
		    get_user(data, &user_cfd->chardata))
			return -EFAULT;
		op.data = compat_ptr(data);
		return con_font_op(vc_cons[fg_console].d, &op);
	case GIO_FONTX:
		op.op = KD_FONT_OP_GET;
		op.flags = 0;
		op.width = 8;
		if (get_user(op.height, &user_cfd->charheight) ||
		    get_user(op.charcount, &user_cfd->charcount) ||
		    get_user(data, &user_cfd->chardata))
			return -EFAULT;
		if (!data)
			return 0;
		op.data = compat_ptr(data);
		i = con_font_op(vc_cons[fg_console].d, &op);
		if (i)
			return i;
		if (put_user(op.height, &user_cfd->charheight) ||
		    put_user(op.charcount, &user_cfd->charcount) ||
		    put_user((compat_caddr_t)(unsigned long)op.data,
				&user_cfd->chardata))
			return -EFAULT;
		return 0;
	}
	return -EINVAL;
}

struct console_font_op32 {
	compat_uint_t op;        /* operation code KD_FONT_OP_* */
	compat_uint_t flags;     /* KD_FONT_FLAG_* */
	compat_uint_t width, height;     /* font size */
	compat_uint_t charcount;
	compat_caddr_t data;    /* font data with height fixed to 32 */
};
                                        
static int do_kdfontop_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg, struct file *file)
{
	struct console_font_op op;
	struct console_font_op32 __user *fontop = compat_ptr(arg);
	int perm = vt_check(file), i;
	struct vc_data *vc;
	
	if (perm < 0) return perm;
	
	if (copy_from_user(&op, fontop, sizeof(struct console_font_op32)))
		return -EFAULT;
	if (!perm && op.op != KD_FONT_OP_GET)
		return -EPERM;
	op.data = compat_ptr(((struct console_font_op32 *)&op)->data);
	op.flags |= KD_FONT_FLAG_OLD;
	vc = ((struct tty_struct *)file->private_data)->driver_data;
	i = con_font_op(vc, &op);
	if (i)
		return i;
	((struct console_font_op32 *)&op)->data = (unsigned long)op.data;
	if (copy_to_user(fontop, &op, sizeof(struct console_font_op32)))
		return -EFAULT;
	return 0;
}

struct unimapdesc32 {
	unsigned short entry_ct;
	compat_caddr_t entries;
};

static int do_unimap_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg, struct file *file)
{
	struct unimapdesc32 tmp;
	struct unimapdesc32 __user *user_ud = compat_ptr(arg);
	int perm = vt_check(file);
	
	if (perm < 0) return perm;
	if (copy_from_user(&tmp, user_ud, sizeof tmp))
		return -EFAULT;
	switch (cmd) {
	case PIO_UNIMAP:
		if (!perm) return -EPERM;
		return con_set_unimap(vc_cons[fg_console].d, tmp.entry_ct, compat_ptr(tmp.entries));
	case GIO_UNIMAP:
		return con_get_unimap(vc_cons[fg_console].d, tmp.entry_ct, &(user_ud->entry_ct), compat_ptr(tmp.entries));
	}
	return 0;
}

#endif /* CONFIG_VT */

static int do_smb_getmountuid(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	mm_segment_t old_fs = get_fs();
	__kernel_uid_t kuid;
	int err;

	cmd = SMB_IOC_GETMOUNTUID;

	set_fs(KERNEL_DS);
	err = sys_ioctl(fd, cmd, (unsigned long)&kuid);
	set_fs(old_fs);

	if (err >= 0)
		err = put_user(kuid, (compat_uid_t __user *)compat_ptr(arg));

	return err;
}

struct atmif_sioc32 {
        compat_int_t	number;
        compat_int_t	length;
        compat_caddr_t	arg;
};

struct atm_iobuf32 {
	compat_int_t	length;
	compat_caddr_t	buffer;
};

#define ATM_GETLINKRATE32 _IOW('a', ATMIOC_ITF+1, struct atmif_sioc32)
#define ATM_GETNAMES32    _IOW('a', ATMIOC_ITF+3, struct atm_iobuf32)
#define ATM_GETTYPE32     _IOW('a', ATMIOC_ITF+4, struct atmif_sioc32)
#define ATM_GETESI32	  _IOW('a', ATMIOC_ITF+5, struct atmif_sioc32)
#define ATM_GETADDR32	  _IOW('a', ATMIOC_ITF+6, struct atmif_sioc32)
#define ATM_RSTADDR32	  _IOW('a', ATMIOC_ITF+7, struct atmif_sioc32)
#define ATM_ADDADDR32	  _IOW('a', ATMIOC_ITF+8, struct atmif_sioc32)
#define ATM_DELADDR32	  _IOW('a', ATMIOC_ITF+9, struct atmif_sioc32)
#define ATM_GETCIRANGE32  _IOW('a', ATMIOC_ITF+10, struct atmif_sioc32)
#define ATM_SETCIRANGE32  _IOW('a', ATMIOC_ITF+11, struct atmif_sioc32)
#define ATM_SETESI32      _IOW('a', ATMIOC_ITF+12, struct atmif_sioc32)
#define ATM_SETESIF32     _IOW('a', ATMIOC_ITF+13, struct atmif_sioc32)
#define ATM_GETSTAT32     _IOW('a', ATMIOC_SARCOM+0, struct atmif_sioc32)
#define ATM_GETSTATZ32    _IOW('a', ATMIOC_SARCOM+1, struct atmif_sioc32)
#define ATM_GETLOOP32	  _IOW('a', ATMIOC_SARCOM+2, struct atmif_sioc32)
#define ATM_SETLOOP32	  _IOW('a', ATMIOC_SARCOM+3, struct atmif_sioc32)
#define ATM_QUERYLOOP32	  _IOW('a', ATMIOC_SARCOM+4, struct atmif_sioc32)

static struct {
        unsigned int cmd32;
        unsigned int cmd;
} atm_ioctl_map[] = {
        { ATM_GETLINKRATE32, ATM_GETLINKRATE },
	{ ATM_GETNAMES32,    ATM_GETNAMES },
        { ATM_GETTYPE32,     ATM_GETTYPE },
        { ATM_GETESI32,      ATM_GETESI },
        { ATM_GETADDR32,     ATM_GETADDR },
        { ATM_RSTADDR32,     ATM_RSTADDR },
        { ATM_ADDADDR32,     ATM_ADDADDR },
        { ATM_DELADDR32,     ATM_DELADDR },
        { ATM_GETCIRANGE32,  ATM_GETCIRANGE },
	{ ATM_SETCIRANGE32,  ATM_SETCIRANGE },
	{ ATM_SETESI32,      ATM_SETESI },
	{ ATM_SETESIF32,     ATM_SETESIF },
	{ ATM_GETSTAT32,     ATM_GETSTAT },
	{ ATM_GETSTATZ32,    ATM_GETSTATZ },
	{ ATM_GETLOOP32,     ATM_GETLOOP },
	{ ATM_SETLOOP32,     ATM_SETLOOP },
	{ ATM_QUERYLOOP32,   ATM_QUERYLOOP }
};

#define NR_ATM_IOCTL (sizeof(atm_ioctl_map)/sizeof(atm_ioctl_map[0]))


static int do_atm_iobuf(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	struct atm_iobuf   __user *iobuf;
	struct atm_iobuf32 __user *iobuf32;
	u32 data;
	void __user *datap;
	int len, err;

	iobuf = compat_alloc_user_space(sizeof(*iobuf));
	iobuf32 = compat_ptr(arg);

	if (get_user(len, &iobuf32->length) ||
	    get_user(data, &iobuf32->buffer))
		return -EFAULT;
	datap = compat_ptr(data);
	if (put_user(len, &iobuf->length) ||
	    put_user(datap, &iobuf->buffer))
		return -EFAULT;

	err = sys_ioctl(fd, cmd, (unsigned long)iobuf);

	if (!err) {
		if (copy_in_user(&iobuf32->length, &iobuf->length,
				 sizeof(int)))
			err = -EFAULT;
	}

	return err;
}

static int do_atmif_sioc(unsigned int fd, unsigned int cmd, unsigned long arg)
{
        struct atmif_sioc   __user *sioc;
	struct atmif_sioc32 __user *sioc32;
	u32 data;
	void __user *datap;
	int err;
        
	sioc = compat_alloc_user_space(sizeof(*sioc));
	sioc32 = compat_ptr(arg);

	if (copy_in_user(&sioc->number, &sioc32->number, 2 * sizeof(int)) ||
	    get_user(data, &sioc32->arg))
		return -EFAULT;
	datap = compat_ptr(data);
	if (put_user(datap, &sioc->arg))
		return -EFAULT;

	err = sys_ioctl(fd, cmd, (unsigned long) sioc);

	if (!err) {
		if (copy_in_user(&sioc32->length, &sioc->length,
				 sizeof(int)))
			err = -EFAULT;
	}
	return err;
}

static int do_atm_ioctl(unsigned int fd, unsigned int cmd32, unsigned long arg)
{
        int i;
        unsigned int cmd = 0;
        
	switch (cmd32) {
	case SONET_GETSTAT:
	case SONET_GETSTATZ:
	case SONET_GETDIAG:
	case SONET_SETDIAG:
	case SONET_CLRDIAG:
	case SONET_SETFRAMING:
	case SONET_GETFRAMING:
	case SONET_GETFRSENSE:
		return do_atmif_sioc(fd, cmd32, arg);
	}

	for (i = 0; i < NR_ATM_IOCTL; i++) {
		if (cmd32 == atm_ioctl_map[i].cmd32) {
			cmd = atm_ioctl_map[i].cmd;
			break;
		}
	}
	if (i == NR_ATM_IOCTL)
	        return -EINVAL;
        
        switch (cmd) {
	case ATM_GETNAMES:
		return do_atm_iobuf(fd, cmd, arg);
	    
	case ATM_GETLINKRATE:
        case ATM_GETTYPE:
        case ATM_GETESI:
        case ATM_GETADDR:
        case ATM_RSTADDR:
        case ATM_ADDADDR:
        case ATM_DELADDR:
        case ATM_GETCIRANGE:
	case ATM_SETCIRANGE:
	case ATM_SETESI:
	case ATM_SETESIF:
	case ATM_GETSTAT:
	case ATM_GETSTATZ:
	case ATM_GETLOOP:
	case ATM_SETLOOP:
	case ATM_QUERYLOOP:
                return do_atmif_sioc(fd, cmd, arg);
        }

        return -EINVAL;
}

static __attribute_used__ int 
ret_einval(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	return -EINVAL;
}

static int broken_blkgetsize(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	/* The mkswap binary hard codes it to Intel value :-((( */
	return w_long(fd, BLKGETSIZE, arg);
}

struct blkpg_ioctl_arg32 {
	compat_int_t op;
	compat_int_t flags;
	compat_int_t datalen;
	compat_caddr_t data;
};

static int blkpg_ioctl_trans(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	struct blkpg_ioctl_arg32 __user *ua32 = compat_ptr(arg);
	struct blkpg_ioctl_arg __user *a = compat_alloc_user_space(sizeof(*a));
	compat_caddr_t udata;
	compat_int_t n;
	int err;
	
	err = get_user(n, &ua32->op);
	err |= put_user(n, &a->op);
	err |= get_user(n, &ua32->flags);
	err |= put_user(n, &a->flags);
	err |= get_user(n, &ua32->datalen);
	err |= put_user(n, &a->datalen);
	err |= get_user(udata, &ua32->data);
	err |= put_user(compat_ptr(udata), &a->data);
	if (err)
		return err;

	return sys_ioctl(fd, cmd, (unsigned long)a);
}

static int ioc_settimeout(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	return rw_long(fd, AUTOFS_IOC_SETTIMEOUT, arg);
}

/* Fix sizeof(sizeof()) breakage */
#define BLKBSZGET_32   _IOR(0x12,112,int)
#define BLKBSZSET_32   _IOW(0x12,113,int)
#define BLKGETSIZE64_32        _IOR(0x12,114,int)

static int do_blkbszget(unsigned int fd, unsigned int cmd, unsigned long arg)
{
       return sys_ioctl(fd, BLKBSZGET, (unsigned long)compat_ptr(arg));
}

static int do_blkbszset(unsigned int fd, unsigned int cmd, unsigned long arg)
{
       return sys_ioctl(fd, BLKBSZSET, (unsigned long)compat_ptr(arg));
}

static int do_blkgetsize64(unsigned int fd, unsigned int cmd,
                          unsigned long arg)
{
       return sys_ioctl(fd, BLKGETSIZE64, (unsigned long)compat_ptr(arg));
}

/* Bluetooth ioctls */
#define HCIUARTSETPROTO	_IOW('U', 200, int)
#define HCIUARTGETPROTO	_IOR('U', 201, int)

#define BNEPCONNADD	_IOW('B', 200, int)
#define BNEPCONNDEL	_IOW('B', 201, int)
#define BNEPGETCONNLIST	_IOR('B', 210, int)
#define BNEPGETCONNINFO	_IOR('B', 211, int)

#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 floppy_struct32 {
	compat_uint_t	size;
	compat_uint_t	sect;
	compat_uint_t	head;
	compat_uint_t	track;
	compat_uint_t	stretch;
	unsigned char	gap;
	unsigned char	rate;
	unsigned char	spec1;
	unsigned char	fmt_gap;
	const compat_caddr_t name;
};

struct floppy_drive_params32 {
	char		cmos;
	compat_ulong_t	max_dtr;
	compat_ulong_t	hlt;
	compat_ulong_t	hut;
	compat_ulong_t	srt;
	compat_ulong_t	spinup;
	compat_ulong_t	spindown;
	unsigned char	spindown_offset;
	unsigned char	select_delay;
	unsigned char	rps;
	unsigned char	tracks;
	compat_ulong_t	timeout;
	unsigned char	interleave_sect;
	struct floppy_max_errors max_errors;
	char		flags;
	char		read_track;
	short		autodetect[8];
	compat_int_t	checkfreq;
	compat_int_t	native_format;
};

struct floppy_drive_struct32 {
	signed char	flags;
	compat_ulong_t	spinup_date;
	compat_ulong_t	select_date;
	compat_ulong_t	first_read_date;
	short		probed_format;
	short		track;
	short		maxblock;
	short		maxtrack;
	compat_int_t	generation;
	compat_int_t	keep_data;
	compat_int_t	fd_ref;
	compat_int_t	fd_device;
	compat_int_t	last_checked;
	compat_caddr_t dmabuf;
	compat_int_t	bufblocks;
};

struct floppy_fdc_state32 {
	compat_int_t	spec1;
	compat_int_t	spec2;
	compat_int_t	dtr;
	unsigned char	version;
	unsigned char	dor;
	compat_ulong_t	address;
	unsigned int	rawcmd:2;
	unsigned int	reset:1;
	unsigned int	need_configure:1;
	unsigned int	perp_mode:2;
	unsigned int	has_fifo:1;
	unsigned int	driver_version;
	unsigned char	track[4];
};

struct floppy_write_errors32 {
	unsigned int	write_errors;
	compat_ulong_t	first_error_sector;
	compat_int_t	first_error_generation;
	compat_ulong_t	last_error_sector;
	compat_int_t	last_error_generation;
	compat_uint_t	badness;
};

#define FDSETPRM32 _IOW(2, 0x42, struct floppy_struct32)
#define FDDEFPRM32 _IOW(2, 0x43, struct floppy_struct32)
#define FDGETPRM32 _IOR(2, 0x04, struct floppy_struct32)
#define FDSETDRVPRM32 _IOW(2, 0x90, struct floppy_drive_params32)
#define FDGETDRVPRM32 _IOR(2, 0x11, struct floppy_drive_params32)
#define FDGETDRVSTAT32 _IOR(2, 0x12, struct floppy_drive_struct32)
#define FDPOLLDRVSTAT32 _IOR(2, 0x13, struct floppy_drive_struct32)
#define FDGETFDCSTAT32 _IOR(2, 0x15, struct floppy_fdc_state32)
#define FDWERRORGET32  _IOR(2, 0x17, struct floppy_write_errors32)

static struct {
	unsigned int	cmd32;
	unsigned int	cmd;
} fd_ioctl_trans_table[] = {
	{ FDSETPRM32, FDSETPRM },
	{ FDDEFPRM32, FDDEFPRM },
	{ FDGETPRM32, FDGETPRM },
	{ FDSETDRVPRM32, FDSETDRVPRM },
	{ FDGETDRVPRM32, FDGETDRVPRM },
	{ FDGETDRVSTAT32, FDGETDRVSTAT },
	{ FDPOLLDRVSTAT32, FDPOLLDRVSTAT },
	{ FDGETFDCSTAT32, FDGETFDCSTAT },
	{ FDWERRORGET32, FDWERRORGET }
};

#define NR_FD_IOCTL_TRANS (sizeof(fd_ioctl_trans_table)/sizeof(fd_ioctl_trans_table[0]))

static int fd_ioctl_trans(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	mm_segment_t old_fs = get_fs();
	void *karg = NULL;
	unsigned int kcmd = 0;
	int i, err;

	for (i = 0; i < NR_FD_IOCTL_TRANS; i++)
		if (cmd == fd_ioctl_trans_table[i].cmd32) {
			kcmd = fd_ioctl_trans_table[i].cmd;
			break;
		}
	if (!kcmd)
		return -EINVAL;

	switch (cmd) {
		case FDSETPRM32:
		case FDDEFPRM32:
		case FDGETPRM32:
		{
			compat_uptr_t name;
			struct floppy_struct32 __user *uf;
			struct floppy_struct *f;

			uf = compat_ptr(arg);
			f = karg = kmalloc(sizeof(struct floppy_struct), GFP_KERNEL);
			if (!karg)
				return -ENOMEM;
			if (cmd == FDGETPRM32)
				break;
			err = __get_user(f->size, &uf->size);
			err |= __get_user(f->sect, &uf->sect);
			err |= __get_user(f->head, &uf->head);
			err |= __get_user(f->track, &uf->track);
			err |= __get_user(f->stretch, &uf->stretch);
			err |= __get_user(f->gap, &uf->gap);
			err |= __get_user(f->rate, &uf->rate);
			err |= __get_user(f->spec1, &uf->spec1);
			err |= __get_user(f->fmt_gap, &uf->fmt_gap);
			err |= __get_user(name, &uf->name);
			f->name = compat_ptr(name);
			if (err) {
				err = -EFAULT;
				goto out;
			}
			break;
		}
		case FDSETDRVPRM32:
		case FDGETDRVPRM32:
		{
			struct floppy_drive_params32 __user *uf;
			struct floppy_drive_params *f;

			uf = compat_ptr(arg);
			f = karg = kmalloc(sizeof(struct floppy_drive_params), GFP_KERNEL);
			if (!karg)
				return -ENOMEM;
			if (cmd == FDGETDRVPRM32)
				break;
			err = __get_user(f->cmos, &uf->cmos);
			err |= __get_user(f->max_dtr, &uf->max_dtr);
			err |= __get_user(f->hlt, &uf->hlt);
			err |= __get_user(f->hut, &uf->hut);
			err |= __get_user(f->srt, &uf->srt);
			err |= __get_user(f->spinup, &uf->spinup);
			err |= __get_user(f->spindown, &uf->spindown);
			err |= __get_user(f->spindown_offset, &uf->spindown_offset);
			err |= __get_user(f->select_delay, &uf->select_delay);
			err |= __get_user(f->rps, &uf->rps);
			err |= __get_user(f->tracks, &uf->tracks);
			err |= __get_user(f->timeout, &uf->timeout);
			err |= __get_user(f->interleave_sect, &uf->interleave_sect);
			err |= __copy_from_user(&f->max_errors, &uf->max_errors, sizeof(f->max_errors));
			err |= __get_user(f->flags, &uf->flags);
			err |= __get_user(f->read_track, &uf->read_track);
			err |= __copy_from_user(f->autodetect, uf->autodetect, sizeof(f->autodetect));
			err |= __get_user(f->checkfreq, &uf->checkfreq);
			err |= __get_user(f->native_format, &uf->native_format);
			if (err) {
				err = -EFAULT;
				goto out;
			}
			break;
		}
		case FDGETDRVSTAT32:
		case FDPOLLDRVSTAT32:
			karg = kmalloc(sizeof(struct floppy_drive_struct), GFP_KERNEL);
			if (!karg)
				return -ENOMEM;
			break;
		case FDGETFDCSTAT32:
			karg = kmalloc(sizeof(struct floppy_fdc_state), GFP_KERNEL);
			if (!karg)
				return -ENOMEM;
			break;
		case FDWERRORGET32:
			karg = kmalloc(sizeof(struct floppy_write_errors), GFP_KERNEL);
			if (!karg)
				return -ENOMEM;
			break;
		default:
			return -EINVAL;
	}
	set_fs (KERNEL_DS);
	err = sys_ioctl (fd, kcmd, (unsigned long)karg);
	set_fs (old_fs);
	if (err)
		goto out;
	switch (cmd) {
		case FDGETPRM32:
		{
			struct floppy_struct *f = karg;
			struct floppy_struct32 __user *uf = compat_ptr(arg);

			err = __put_user(f->size, &uf->size);
			err |= __put_user(f->sect, &uf->sect);
			err |= __put_user(f->head, &uf->head);
			err |= __put_user(f->track, &uf->track);
			err |= __put_user(f->stretch, &uf->stretch);
			err |= __put_user(f->gap, &uf->gap);
			err |= __put_user(f->rate, &uf->rate);
			err |= __put_user(f->spec1, &uf->spec1);
			err |= __put_user(f->fmt_gap, &uf->fmt_gap);
			err |= __put_user((u64)f->name, (compat_caddr_t __user *)&uf->name);
			break;
		}
		case FDGETDRVPRM32:
		{
			struct floppy_drive_params32 __user *uf;
			struct floppy_drive_params *f = karg;

			uf = compat_ptr(arg);
			err = __put_user(f->cmos, &uf->cmos);
			err |= __put_user(f->max_dtr, &uf->max_dtr);
			err |= __put_user(f->hlt, &uf->hlt);
			err |= __put_user(f->hut, &uf->hut);
			err |= __put_user(f->srt, &uf->srt);
			err |= __put_user(f->spinup, &uf->spinup);
			err |= __put_user(f->spindown, &uf->spindown);
			err |= __put_user(f->spindown_offset, &uf->spindown_offset);
			err |= __put_user(f->select_delay, &uf->select_delay);
			err |= __put_user(f->rps, &uf->rps);
			err |= __put_user(f->tracks, &uf->tracks);
			err |= __put_user(f->timeout, &uf->timeout);
			err |= __put_user(f->interleave_sect, &uf->interleave_sect);
			err |= __copy_to_user(&uf->max_errors, &f->max_errors, sizeof(f->max_errors));
			err |= __put_user(f->flags, &uf->flags);
			err |= __put_user(f->read_track, &uf->read_track);
			err |= __copy_to_user(uf->autodetect, f->autodetect, sizeof(f->autodetect));
			err |= __put_user(f->checkfreq, &uf->checkfreq);
			err |= __put_user(f->native_format, &uf->native_format);
			break;
		}
		case FDGETDRVSTAT32:
		case FDPOLLDRVSTAT32:
		{
			struct floppy_drive_struct32 __user *uf;
			struct floppy_drive_struct *f = karg;

			uf = compat_ptr(arg);
			err = __put_user(f->flags, &uf->flags);
			err |= __put_user(f->spinup_date, &uf->spinup_date);
			err |= __put_user(f->select_date, &uf->select_date);
			err |= __put_user(f->first_read_date, &uf->first_read_date);
			err |= __put_user(f->probed_format, &uf->probed_format);
			err |= __put_user(f->track, &uf->track);
			err |= __put_user(f->maxblock, &uf->maxblock);
			err |= __put_user(f->maxtrack, &uf->maxtrack);
			err |= __put_user(f->generation, &uf->generation);
			err |= __put_user(f->keep_data, &uf->keep_data);
			err |= __put_user(f->fd_ref, &uf->fd_ref);
			err |= __put_user(f->fd_device, &uf->fd_device);
			err |= __put_user(f->last_checked, &uf->last_checked);
			err |= __put_user((u64)f->dmabuf, &uf->dmabuf);
			err |= __put_user((u64)f->bufblocks, &uf->bufblocks);
			break;
		}
		case FDGETFDCSTAT32:
		{
			struct floppy_fdc_state32 __user *uf;
			struct floppy_fdc_state *f = karg;

			uf = compat_ptr(arg);
			err = __put_user(f->spec1, &uf->spec1);
			err |= __put_user(f->spec2, &uf->spec2);
			err |= __put_user(f->dtr, &uf->dtr);
			err |= __put_user(f->version, &uf->version);
			err |= __put_user(f->dor, &uf->dor);
			err |= __put_user(f->address, &uf->address);
			err |= __copy_to_user((char __user *)&uf->address + sizeof(uf->address),
					   (char *)&f->address + sizeof(f->address), sizeof(int));
			err |= __put_user(f->driver_version, &uf->driver_version);
			err |= __copy_to_user(uf->track, f->track, sizeof(f->track));
			break;
		}
		case FDWERRORGET32:
		{
			struct floppy_write_errors32 __user *uf;
			struct floppy_write_errors *f = karg;

			uf = compat_ptr(arg);
			err = __put_user(f->write_errors, &uf->write_errors);
			err |= __put_user(f->first_error_sector, &uf->first_error_sector);
			err |= __put_user(f->first_error_generation, &uf->first_error_generation);
			err |= __put_user(f->last_error_sector, &uf->last_error_sector);
			err |= __put_user(f->last_error_generation, &uf->last_error_generation);
			err |= __put_user(f->badness, &uf->badness);
			break;
		}
		default:
			break;
	}
	if (err)
		err = -EFAULT;

J
Jesper Juhl 已提交
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out:
	kfree(karg);
L
Linus Torvalds 已提交
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	return err;
}

struct mtd_oob_buf32 {
	u_int32_t start;
	u_int32_t length;
	compat_caddr_t ptr;	/* unsigned char* */
};

#define MEMWRITEOOB32 	_IOWR('M',3,struct mtd_oob_buf32)
#define MEMREADOOB32 	_IOWR('M',4,struct mtd_oob_buf32)

static int mtd_rw_oob(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	struct mtd_oob_buf __user *buf = compat_alloc_user_space(sizeof(*buf));
	struct mtd_oob_buf32 __user *buf32 = compat_ptr(arg);
	u32 data;
	char __user *datap;
	unsigned int real_cmd;
	int err;

	real_cmd = (cmd == MEMREADOOB32) ?
		MEMREADOOB : MEMWRITEOOB;

	if (copy_in_user(&buf->start, &buf32->start,
			 2 * sizeof(u32)) ||
	    get_user(data, &buf32->ptr))
		return -EFAULT;
	datap = compat_ptr(data);
	if (put_user(datap, &buf->ptr))
		return -EFAULT;

	err = sys_ioctl(fd, real_cmd, (unsigned long) buf);

	if (!err) {
		if (copy_in_user(&buf32->start, &buf->start,
				 2 * sizeof(u32)))
			err = -EFAULT;
	}

	return err;
}	

#define	VFAT_IOCTL_READDIR_BOTH32	_IOR('r', 1, struct compat_dirent[2])
#define	VFAT_IOCTL_READDIR_SHORT32	_IOR('r', 2, struct compat_dirent[2])

static long
put_dirent32 (struct dirent *d, struct compat_dirent __user *d32)
{
        if (!access_ok(VERIFY_WRITE, d32, sizeof(struct compat_dirent)))
                return -EFAULT;

        __put_user(d->d_ino, &d32->d_ino);
        __put_user(d->d_off, &d32->d_off);
        __put_user(d->d_reclen, &d32->d_reclen);
        if (__copy_to_user(d32->d_name, d->d_name, d->d_reclen))
		return -EFAULT;

        return 0;
}

static int vfat_ioctl32(unsigned fd, unsigned cmd, unsigned long arg)
{
	struct compat_dirent __user *p = compat_ptr(arg);
	int ret;
	mm_segment_t oldfs = get_fs();
	struct dirent d[2];

	switch(cmd)
	{
        	case VFAT_IOCTL_READDIR_BOTH32:
                	cmd = VFAT_IOCTL_READDIR_BOTH;
                	break;
        	case VFAT_IOCTL_READDIR_SHORT32:
                	cmd = VFAT_IOCTL_READDIR_SHORT;
                	break;
	}

	set_fs(KERNEL_DS);
	ret = sys_ioctl(fd,cmd,(unsigned long)&d);
	set_fs(oldfs);
	if (ret >= 0) {
		ret |= put_dirent32(&d[0], p);
		ret |= put_dirent32(&d[1], p + 1);
	}
	return ret;
}

#define REISERFS_IOC_UNPACK32               _IOW(0xCD,1,int)

static int reiserfs_ioctl32(unsigned fd, unsigned cmd, unsigned long ptr)
{
        if (cmd == REISERFS_IOC_UNPACK32)
                cmd = REISERFS_IOC_UNPACK;

        return sys_ioctl(fd,cmd,ptr);
}

struct raw32_config_request
{
        compat_int_t    raw_minor;
        __u64   block_major;
        __u64   block_minor;
} __attribute__((packed));

static int get_raw32_request(struct raw_config_request *req, struct raw32_config_request __user *user_req)
{
        int ret;

        if (!access_ok(VERIFY_READ, user_req, sizeof(struct raw32_config_request)))
                return -EFAULT;

        ret = __get_user(req->raw_minor, &user_req->raw_minor);
        ret |= __get_user(req->block_major, &user_req->block_major);
        ret |= __get_user(req->block_minor, &user_req->block_minor);

        return ret ? -EFAULT : 0;
}

static int set_raw32_request(struct raw_config_request *req, struct raw32_config_request __user *user_req)
{
	int ret;

        if (!access_ok(VERIFY_WRITE, user_req, sizeof(struct raw32_config_request)))
                return -EFAULT;

        ret = __put_user(req->raw_minor, &user_req->raw_minor);
        ret |= __put_user(req->block_major, &user_req->block_major);
        ret |= __put_user(req->block_minor, &user_req->block_minor);

        return ret ? -EFAULT : 0;
}

static int raw_ioctl(unsigned fd, unsigned cmd, unsigned long arg)
{
        int ret;

        switch (cmd) {
        case RAW_SETBIND:
        case RAW_GETBIND: {
                struct raw_config_request req;
                struct raw32_config_request __user *user_req = compat_ptr(arg);
                mm_segment_t oldfs = get_fs();

                if ((ret = get_raw32_request(&req, user_req)))
                        return ret;

                set_fs(KERNEL_DS);
                ret = sys_ioctl(fd,cmd,(unsigned long)&req);
                set_fs(oldfs);

                if ((!ret) && (cmd == RAW_GETBIND)) {
                        ret = set_raw32_request(&req, user_req);
                }
                break;
        }
        default:
                ret = sys_ioctl(fd, cmd, arg);
                break;
        }
        return ret;
}

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];
};

static int serial_struct_ioctl(unsigned fd, unsigned cmd, unsigned long arg)
{
        typedef struct serial_struct SS;
        typedef struct serial_struct32 SS32;
        struct serial_struct32 __user *ss32 = compat_ptr(arg);
        int err;
        struct serial_struct ss;
        mm_segment_t oldseg = get_fs();
        __u32 udata;

        if (cmd == TIOCSSERIAL) {
                if (!access_ok(VERIFY_READ, ss32, sizeof(SS32)))
                        return -EFAULT;
                if (__copy_from_user(&ss, ss32, offsetof(SS32, iomem_base)))
			return -EFAULT;
                __get_user(udata, &ss32->iomem_base);
                ss.iomem_base = compat_ptr(udata);
                __get_user(ss.iomem_reg_shift, &ss32->iomem_reg_shift);
                __get_user(ss.port_high, &ss32->port_high);
                ss.iomap_base = 0UL;
        }
        set_fs(KERNEL_DS);
                err = sys_ioctl(fd,cmd,(unsigned long)(&ss));
        set_fs(oldseg);
        if (cmd == TIOCGSERIAL && err >= 0) {
                if (!access_ok(VERIFY_WRITE, ss32, sizeof(SS32)))
                        return -EFAULT;
                if (__copy_to_user(ss32,&ss,offsetof(SS32,iomem_base)))
			return -EFAULT;
                __put_user((unsigned long)ss.iomem_base  >> 32 ?
                            0xffffffff : (unsigned)(unsigned long)ss.iomem_base,
                            &ss32->iomem_base);
                __put_user(ss.iomem_reg_shift, &ss32->iomem_reg_shift);
                __put_user(ss.port_high, &ss32->port_high);

        }
        return err;
}

struct usbdevfs_ctrltransfer32 {
        u8 bRequestType;
        u8 bRequest;
        u16 wValue;
        u16 wIndex;
        u16 wLength;
        u32 timeout;  /* in milliseconds */
        compat_caddr_t data;
};

#define USBDEVFS_CONTROL32           _IOWR('U', 0, struct usbdevfs_ctrltransfer32)

static int do_usbdevfs_control(unsigned int fd, unsigned int cmd, unsigned long arg)
{
        struct usbdevfs_ctrltransfer32 __user *p32 = compat_ptr(arg);
        struct usbdevfs_ctrltransfer __user *p;
        __u32 udata;
        p = compat_alloc_user_space(sizeof(*p));
        if (copy_in_user(p, p32, (sizeof(*p32) - sizeof(compat_caddr_t))) ||
            get_user(udata, &p32->data) ||
	    put_user(compat_ptr(udata), &p->data))
		return -EFAULT;
        return sys_ioctl(fd, USBDEVFS_CONTROL, (unsigned long)p);
}


struct usbdevfs_bulktransfer32 {
        compat_uint_t ep;
        compat_uint_t len;
        compat_uint_t timeout; /* in milliseconds */
        compat_caddr_t data;
};

#define USBDEVFS_BULK32              _IOWR('U', 2, struct usbdevfs_bulktransfer32)

static int do_usbdevfs_bulk(unsigned int fd, unsigned int cmd, unsigned long arg)
{
        struct usbdevfs_bulktransfer32 __user *p32 = compat_ptr(arg);
        struct usbdevfs_bulktransfer __user *p;
        compat_uint_t n;
        compat_caddr_t addr;

        p = compat_alloc_user_space(sizeof(*p));

        if (get_user(n, &p32->ep) || put_user(n, &p->ep) ||
            get_user(n, &p32->len) || put_user(n, &p->len) ||
            get_user(n, &p32->timeout) || put_user(n, &p->timeout) ||
            get_user(addr, &p32->data) || put_user(compat_ptr(addr), &p->data))
                return -EFAULT;

        return sys_ioctl(fd, USBDEVFS_BULK, (unsigned long)p);
}


/*
 *  USBDEVFS_SUBMITURB, USBDEVFS_REAPURB and USBDEVFS_REAPURBNDELAY
 *  are handled in usbdevfs core.			-Christopher Li
 */

struct usbdevfs_disconnectsignal32 {
        compat_int_t signr;
        compat_caddr_t context;
};

#define USBDEVFS_DISCSIGNAL32      _IOR('U', 14, struct usbdevfs_disconnectsignal32)

static int do_usbdevfs_discsignal(unsigned int fd, unsigned int cmd, unsigned long arg)
{
        struct usbdevfs_disconnectsignal kdis;
        struct usbdevfs_disconnectsignal32 __user *udis;
        mm_segment_t old_fs;
        u32 uctx;
        int err;

        udis = compat_ptr(arg);

        if (get_user(kdis.signr, &udis->signr) ||
            __get_user(uctx, &udis->context))
                return -EFAULT;

        kdis.context = compat_ptr(uctx);

        old_fs = get_fs();
        set_fs(KERNEL_DS);
        err = sys_ioctl(fd, USBDEVFS_DISCSIGNAL, (unsigned long) &kdis);
        set_fs(old_fs);

        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];
};

static int do_i2c_rdwr_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	struct i2c_rdwr_ioctl_data32	__user *udata = compat_ptr(arg);
	struct i2c_rdwr_aligned		__user *tdata;
	struct i2c_msg			__user *tmsgs;
	struct i2c_msg32		__user *umsgs;
	compat_caddr_t			datap;
	int				nmsgs, i;

	if (get_user(nmsgs, &udata->nmsgs))
		return -EFAULT;
	if (nmsgs > I2C_RDRW_IOCTL_MAX_MSGS)
		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;
	}
	return sys_ioctl(fd, cmd, (unsigned long)tdata);
}

static int do_i2c_smbus_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	struct i2c_smbus_ioctl_data	__user *tdata;
	struct i2c_smbus_ioctl_data32	__user *udata;
	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;

	udata = compat_ptr(arg);
	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;

	return sys_ioctl(fd, cmd, (unsigned long)tdata);
}

struct compat_iw_point {
	compat_caddr_t pointer;
	__u16 length;
	__u16 flags;
};

static int do_wireless_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	struct iwreq __user *iwr;
	struct iwreq __user *iwr_u;
	struct iw_point __user *iwp;
	struct compat_iw_point __user *iwp_u;
	compat_caddr_t pointer;
	__u16 length, flags;

	iwr_u = compat_ptr(arg);
	iwp_u = (struct compat_iw_point __user *) &iwr_u->u.data;
	iwr = compat_alloc_user_space(sizeof(*iwr));
	if (iwr == NULL)
		return -ENOMEM;

	iwp = &iwr->u.data;

	if (!access_ok(VERIFY_WRITE, iwr, sizeof(*iwr)))
		return -EFAULT;

	if (__copy_in_user(&iwr->ifr_ifrn.ifrn_name[0],
			   &iwr_u->ifr_ifrn.ifrn_name[0],
			   sizeof(iwr->ifr_ifrn.ifrn_name)))
		return -EFAULT;

	if (__get_user(pointer, &iwp_u->pointer) ||
	    __get_user(length, &iwp_u->length) ||
	    __get_user(flags, &iwp_u->flags))
		return -EFAULT;

	if (__put_user(compat_ptr(pointer), &iwp->pointer) ||
	    __put_user(length, &iwp->length) ||
	    __put_user(flags, &iwp->flags))
		return -EFAULT;

	return sys_ioctl(fd, cmd, (unsigned long) iwr);
}

/* Since old style bridge ioctl's endup using SIOCDEVPRIVATE
 * for some operations; this forces use of the newer bridge-utils that
 * use compatiable ioctls
 */
static int old_bridge_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	u32 tmp;

	if (get_user(tmp, (u32 __user *) arg))
		return -EFAULT;
	if (tmp == BRCTL_GET_VERSION)
		return BRCTL_VERSION + 1;
	return -EINVAL;
}

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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)

static int rtc_ioctl(unsigned fd, unsigned cmd, unsigned long arg)
{
	mm_segment_t oldfs = get_fs();
	compat_ulong_t val32;
	unsigned long kval;
	int ret;

	switch (cmd) {
	case RTC_IRQP_READ32:
	case RTC_EPOCH_READ32:
		set_fs(KERNEL_DS);
		ret = sys_ioctl(fd, (cmd == RTC_IRQP_READ32) ?
					RTC_IRQP_READ : RTC_EPOCH_READ,
					(unsigned long)&kval);
		set_fs(oldfs);
		if (ret)
			return ret;
		val32 = kval;
		return put_user(val32, (unsigned int __user *)arg);
	case RTC_IRQP_SET32:
	case RTC_EPOCH_SET32:
		ret = get_user(val32, (unsigned int __user *)arg);
		if (ret)
			return ret;
		kval = val32;

		set_fs(KERNEL_DS);
		ret = sys_ioctl(fd, (cmd == RTC_IRQP_SET32) ?
				RTC_IRQP_SET : RTC_EPOCH_SET,
				(unsigned long)&kval);
		set_fs(oldfs);
		return ret;
	default:
		/* unreached */
		return -ENOIOCTLCMD;
	}
}

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#if defined(CONFIG_NCP_FS) || defined(CONFIG_NCP_FS_MODULE)
struct ncp_ioctl_request_32 {
	u32 function;
	u32 size;
	compat_caddr_t data;
};

struct ncp_fs_info_v2_32 {
	s32 version;
	u32 mounted_uid;
	u32 connection;
	u32 buffer_size;

	u32 volume_number;
	u32 directory_id;

	u32 dummy1;
	u32 dummy2;
	u32 dummy3;
};

struct ncp_objectname_ioctl_32
{
	s32		auth_type;
	u32		object_name_len;
	compat_caddr_t	object_name;	/* an userspace data, in most cases user name */
};

struct ncp_privatedata_ioctl_32
{
	u32		len;
	compat_caddr_t	data;		/* ~1000 for NDS */
};

#define	NCP_IOC_NCPREQUEST_32		_IOR('n', 1, struct ncp_ioctl_request_32)
#define NCP_IOC_GETMOUNTUID2_32		_IOW('n', 2, u32)
#define NCP_IOC_GET_FS_INFO_V2_32	_IOWR('n', 4, struct ncp_fs_info_v2_32)
#define NCP_IOC_GETOBJECTNAME_32	_IOWR('n', 9, struct ncp_objectname_ioctl_32)
#define NCP_IOC_SETOBJECTNAME_32	_IOR('n', 9, struct ncp_objectname_ioctl_32)
#define NCP_IOC_GETPRIVATEDATA_32	_IOWR('n', 10, struct ncp_privatedata_ioctl_32)
#define NCP_IOC_SETPRIVATEDATA_32	_IOR('n', 10, struct ncp_privatedata_ioctl_32)

static int do_ncp_ncprequest(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	struct ncp_ioctl_request_32 n32;
	struct ncp_ioctl_request __user *p = compat_alloc_user_space(sizeof(*p));

	if (copy_from_user(&n32, compat_ptr(arg), sizeof(n32)) ||
	    put_user(n32.function, &p->function) ||
	    put_user(n32.size, &p->size) ||
	    put_user(compat_ptr(n32.data), &p->data))
		return -EFAULT;

	return sys_ioctl(fd, NCP_IOC_NCPREQUEST, (unsigned long)p);
}

static int do_ncp_getmountuid2(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	mm_segment_t old_fs = get_fs();
	__kernel_uid_t kuid;
	int err;

	cmd = NCP_IOC_GETMOUNTUID2;

	set_fs(KERNEL_DS);
	err = sys_ioctl(fd, cmd, (unsigned long)&kuid);
	set_fs(old_fs);

	if (!err)
		err = put_user(kuid,
			       (unsigned int __user *) compat_ptr(arg));

	return err;
}

static int do_ncp_getfsinfo2(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	mm_segment_t old_fs = get_fs();
	struct ncp_fs_info_v2_32 n32;
	struct ncp_fs_info_v2 n;
	int err;

	if (copy_from_user(&n32, compat_ptr(arg), sizeof(n32)))
		return -EFAULT;
	if (n32.version != NCP_GET_FS_INFO_VERSION_V2)
		return -EINVAL;
	n.version = NCP_GET_FS_INFO_VERSION_V2;

	set_fs(KERNEL_DS);
	err = sys_ioctl(fd, NCP_IOC_GET_FS_INFO_V2, (unsigned long)&n);
	set_fs(old_fs);

	if (!err) {
		n32.version = n.version;
		n32.mounted_uid = n.mounted_uid;
		n32.connection = n.connection;
		n32.buffer_size = n.buffer_size;
		n32.volume_number = n.volume_number;
		n32.directory_id = n.directory_id;
		n32.dummy1 = n.dummy1;
		n32.dummy2 = n.dummy2;
		n32.dummy3 = n.dummy3;
		err = copy_to_user(compat_ptr(arg), &n32, sizeof(n32)) ? -EFAULT : 0;
	}
	return err;
}

static int do_ncp_getobjectname(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	struct ncp_objectname_ioctl_32 n32, __user *p32 = compat_ptr(arg);
	struct ncp_objectname_ioctl __user *p = compat_alloc_user_space(sizeof(*p));
	s32 auth_type;
	u32 name_len;
	int err;

	if (copy_from_user(&n32, p32, sizeof(n32)) ||
	    put_user(n32.object_name_len, &p->object_name_len) ||
	    put_user(compat_ptr(n32.object_name), &p->object_name))
		return -EFAULT;

	err = sys_ioctl(fd, NCP_IOC_GETOBJECTNAME, (unsigned long)p);
        if (err)
		return err;

	if (get_user(auth_type, &p->auth_type) ||
	    put_user(auth_type, &p32->auth_type) ||
	    get_user(name_len, &p->object_name_len) ||
	    put_user(name_len, &p32->object_name_len))
		return -EFAULT;

	return 0;
}

static int do_ncp_setobjectname(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	struct ncp_objectname_ioctl_32 n32, __user *p32 = compat_ptr(arg);
	struct ncp_objectname_ioctl __user *p = compat_alloc_user_space(sizeof(*p));

	if (copy_from_user(&n32, p32, sizeof(n32)) ||
	    put_user(n32.auth_type, &p->auth_type) ||
	    put_user(n32.object_name_len, &p->object_name_len) ||
	    put_user(compat_ptr(n32.object_name), &p->object_name))
		return -EFAULT;

	return sys_ioctl(fd, NCP_IOC_SETOBJECTNAME, (unsigned long)p);
}

static int do_ncp_getprivatedata(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	struct ncp_privatedata_ioctl_32 n32, __user *p32 = compat_ptr(arg);
	struct ncp_privatedata_ioctl __user *p =
		compat_alloc_user_space(sizeof(*p));
	u32 len;
	int err;

	if (copy_from_user(&n32, p32, sizeof(n32)) ||
	    put_user(n32.len, &p->len) ||
	    put_user(compat_ptr(n32.data), &p->data))
		return -EFAULT;

	err = sys_ioctl(fd, NCP_IOC_GETPRIVATEDATA, (unsigned long)p);
        if (err)
		return err;

	if (get_user(len, &p->len) ||
	    put_user(len, &p32->len))
		return -EFAULT;

	return 0;
}

static int do_ncp_setprivatedata(unsigned int fd, unsigned int cmd, unsigned long arg)
{
	struct ncp_privatedata_ioctl_32 n32;
	struct ncp_privatedata_ioctl_32 __user *p32 = compat_ptr(arg);
	struct ncp_privatedata_ioctl __user *p =
		compat_alloc_user_space(sizeof(*p));

	if (copy_from_user(&n32, p32, sizeof(n32)) ||
	    put_user(n32.len, &p->len) ||
	    put_user(compat_ptr(n32.data), &p->data))
		return -EFAULT;

	return sys_ioctl(fd, NCP_IOC_SETPRIVATEDATA, (unsigned long)p);
}
#endif

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static int
lp_timeout_trans(unsigned int fd, unsigned int cmd, unsigned long arg)
{
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	struct compat_timeval __user *tc = (struct compat_timeval __user *)arg;
	struct timeval __user *tn = compat_alloc_user_space(sizeof(struct timeval));
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	struct timeval ts;
	if (get_user(ts.tv_sec, &tc->tv_sec) ||
	    get_user(ts.tv_usec, &tc->tv_usec) ||
	    put_user(ts.tv_sec, &tn->tv_sec) ||
	    put_user(ts.tv_usec, &tn->tv_usec))
		return -EFAULT;
	return sys_ioctl(fd, cmd, (unsigned long)tn);
}

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#define HANDLE_IOCTL(cmd,handler) \
	{ (cmd), (ioctl_trans_handler_t)(handler) },

/* pointer to compatible structure or no argument */
#define COMPATIBLE_IOCTL(cmd) \
	{ (cmd), do_ioctl32_pointer },

/* argument is an unsigned long integer, not a pointer */
#define ULONG_IOCTL(cmd) \
	{ (cmd), (ioctl_trans_handler_t)sys_ioctl },
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struct ioctl_trans ioctl_start[] = {
#include <linux/compat_ioctl.h>
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HANDLE_IOCTL(MEMREADOOB32, mtd_rw_oob)
HANDLE_IOCTL(MEMWRITEOOB32, mtd_rw_oob)
#ifdef CONFIG_NET
HANDLE_IOCTL(SIOCGIFNAME, dev_ifname32)
HANDLE_IOCTL(SIOCGIFCONF, dev_ifconf)
HANDLE_IOCTL(SIOCGIFFLAGS, dev_ifsioc)
HANDLE_IOCTL(SIOCSIFFLAGS, dev_ifsioc)
HANDLE_IOCTL(SIOCGIFMETRIC, dev_ifsioc)
HANDLE_IOCTL(SIOCSIFMETRIC, dev_ifsioc)
HANDLE_IOCTL(SIOCGIFMTU, dev_ifsioc)
HANDLE_IOCTL(SIOCSIFMTU, dev_ifsioc)
HANDLE_IOCTL(SIOCGIFMEM, dev_ifsioc)
HANDLE_IOCTL(SIOCSIFMEM, dev_ifsioc)
HANDLE_IOCTL(SIOCGIFHWADDR, dev_ifsioc)
HANDLE_IOCTL(SIOCSIFHWADDR, dev_ifsioc)
HANDLE_IOCTL(SIOCADDMULTI, dev_ifsioc)
HANDLE_IOCTL(SIOCDELMULTI, dev_ifsioc)
HANDLE_IOCTL(SIOCGIFINDEX, dev_ifsioc)
HANDLE_IOCTL(SIOCGIFMAP, dev_ifsioc)
HANDLE_IOCTL(SIOCSIFMAP, dev_ifsioc)
HANDLE_IOCTL(SIOCGIFADDR, dev_ifsioc)
HANDLE_IOCTL(SIOCSIFADDR, dev_ifsioc)

/* ioctls used by appletalk ddp.c */
HANDLE_IOCTL(SIOCATALKDIFADDR, dev_ifsioc)
HANDLE_IOCTL(SIOCDIFADDR, dev_ifsioc)
HANDLE_IOCTL(SIOCSARP, dev_ifsioc)
HANDLE_IOCTL(SIOCDARP, dev_ifsioc)

HANDLE_IOCTL(SIOCGIFBRDADDR, dev_ifsioc)
HANDLE_IOCTL(SIOCSIFBRDADDR, dev_ifsioc)
HANDLE_IOCTL(SIOCGIFDSTADDR, dev_ifsioc)
HANDLE_IOCTL(SIOCSIFDSTADDR, dev_ifsioc)
HANDLE_IOCTL(SIOCGIFNETMASK, dev_ifsioc)
HANDLE_IOCTL(SIOCSIFNETMASK, dev_ifsioc)
HANDLE_IOCTL(SIOCSIFPFLAGS, dev_ifsioc)
HANDLE_IOCTL(SIOCGIFPFLAGS, dev_ifsioc)
HANDLE_IOCTL(SIOCGIFTXQLEN, dev_ifsioc)
HANDLE_IOCTL(SIOCSIFTXQLEN, dev_ifsioc)
HANDLE_IOCTL(TUNSETIFF, dev_ifsioc)
HANDLE_IOCTL(SIOCETHTOOL, ethtool_ioctl)
HANDLE_IOCTL(SIOCBONDENSLAVE, bond_ioctl)
HANDLE_IOCTL(SIOCBONDRELEASE, bond_ioctl)
HANDLE_IOCTL(SIOCBONDSETHWADDR, bond_ioctl)
HANDLE_IOCTL(SIOCBONDSLAVEINFOQUERY, bond_ioctl)
HANDLE_IOCTL(SIOCBONDINFOQUERY, bond_ioctl)
HANDLE_IOCTL(SIOCBONDCHANGEACTIVE, bond_ioctl)
HANDLE_IOCTL(SIOCADDRT, routing_ioctl)
HANDLE_IOCTL(SIOCDELRT, routing_ioctl)
HANDLE_IOCTL(SIOCBRADDIF, dev_ifsioc)
HANDLE_IOCTL(SIOCBRDELIF, dev_ifsioc)
/* Note SIOCRTMSG is no longer, so this is safe and * the user would have seen just an -EINVAL anyways. */
HANDLE_IOCTL(SIOCRTMSG, ret_einval)
HANDLE_IOCTL(SIOCGSTAMP, do_siocgstamp)
#endif
HANDLE_IOCTL(HDIO_GETGEO, hdio_getgeo)
HANDLE_IOCTL(BLKRAGET, w_long)
HANDLE_IOCTL(BLKGETSIZE, w_long)
HANDLE_IOCTL(0x1260, broken_blkgetsize)
HANDLE_IOCTL(BLKFRAGET, w_long)
HANDLE_IOCTL(BLKSECTGET, w_long)
HANDLE_IOCTL(BLKPG, blkpg_ioctl_trans)
HANDLE_IOCTL(HDIO_GET_KEEPSETTINGS, hdio_ioctl_trans)
HANDLE_IOCTL(HDIO_GET_UNMASKINTR, hdio_ioctl_trans)
HANDLE_IOCTL(HDIO_GET_DMA, hdio_ioctl_trans)
HANDLE_IOCTL(HDIO_GET_32BIT, hdio_ioctl_trans)
HANDLE_IOCTL(HDIO_GET_MULTCOUNT, hdio_ioctl_trans)
HANDLE_IOCTL(HDIO_GET_NOWERR, hdio_ioctl_trans)
HANDLE_IOCTL(HDIO_GET_NICE, hdio_ioctl_trans)
HANDLE_IOCTL(FDSETPRM32, fd_ioctl_trans)
HANDLE_IOCTL(FDDEFPRM32, fd_ioctl_trans)
HANDLE_IOCTL(FDGETPRM32, fd_ioctl_trans)
HANDLE_IOCTL(FDSETDRVPRM32, fd_ioctl_trans)
HANDLE_IOCTL(FDGETDRVPRM32, fd_ioctl_trans)
HANDLE_IOCTL(FDGETDRVSTAT32, fd_ioctl_trans)
HANDLE_IOCTL(FDPOLLDRVSTAT32, fd_ioctl_trans)
HANDLE_IOCTL(FDGETFDCSTAT32, fd_ioctl_trans)
HANDLE_IOCTL(FDWERRORGET32, fd_ioctl_trans)
HANDLE_IOCTL(SG_IO,sg_ioctl_trans)
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HANDLE_IOCTL(SG_GET_REQUEST_TABLE, sg_grt_trans)
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HANDLE_IOCTL(PPPIOCGIDLE32, ppp_ioctl_trans)
HANDLE_IOCTL(PPPIOCSCOMPRESS32, ppp_ioctl_trans)
HANDLE_IOCTL(PPPIOCSPASS32, ppp_sock_fprog_ioctl_trans)
HANDLE_IOCTL(PPPIOCSACTIVE32, ppp_sock_fprog_ioctl_trans)
HANDLE_IOCTL(MTIOCGET32, mt_ioctl_trans)
HANDLE_IOCTL(MTIOCPOS32, mt_ioctl_trans)
HANDLE_IOCTL(CDROMREADAUDIO, cdrom_ioctl_trans)
HANDLE_IOCTL(CDROM_SEND_PACKET, cdrom_ioctl_trans)
HANDLE_IOCTL(LOOP_SET_STATUS, loop_status)
HANDLE_IOCTL(LOOP_GET_STATUS, loop_status)
#define AUTOFS_IOC_SETTIMEOUT32 _IOWR(0x93,0x64,unsigned int)
HANDLE_IOCTL(AUTOFS_IOC_SETTIMEOUT32, ioc_settimeout)
#ifdef CONFIG_VT
HANDLE_IOCTL(PIO_FONTX, do_fontx_ioctl)
HANDLE_IOCTL(GIO_FONTX, do_fontx_ioctl)
HANDLE_IOCTL(PIO_UNIMAP, do_unimap_ioctl)
HANDLE_IOCTL(GIO_UNIMAP, do_unimap_ioctl)
HANDLE_IOCTL(KDFONTOP, do_kdfontop_ioctl)
#endif
HANDLE_IOCTL(EXT2_IOC32_GETFLAGS, do_ext2_ioctl)
HANDLE_IOCTL(EXT2_IOC32_SETFLAGS, do_ext2_ioctl)
HANDLE_IOCTL(EXT2_IOC32_GETVERSION, do_ext2_ioctl)
HANDLE_IOCTL(EXT2_IOC32_SETVERSION, do_ext2_ioctl)
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HANDLE_IOCTL(EXT3_IOC32_GETVERSION, do_ext3_ioctl)
HANDLE_IOCTL(EXT3_IOC32_SETVERSION, do_ext3_ioctl)
HANDLE_IOCTL(EXT3_IOC32_GETRSVSZ, do_ext3_ioctl)
HANDLE_IOCTL(EXT3_IOC32_SETRSVSZ, do_ext3_ioctl)
HANDLE_IOCTL(EXT3_IOC32_GROUP_EXTEND, do_ext3_ioctl)
COMPATIBLE_IOCTL(EXT3_IOC_GROUP_ADD)
#ifdef CONFIG_JBD_DEBUG
HANDLE_IOCTL(EXT3_IOC32_WAIT_FOR_READONLY, do_ext3_ioctl)
#endif
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/* One SMB ioctl needs translations. */
#define SMB_IOC_GETMOUNTUID_32 _IOR('u', 1, compat_uid_t)
HANDLE_IOCTL(SMB_IOC_GETMOUNTUID_32, do_smb_getmountuid)
HANDLE_IOCTL(ATM_GETLINKRATE32, do_atm_ioctl)
HANDLE_IOCTL(ATM_GETNAMES32, do_atm_ioctl)
HANDLE_IOCTL(ATM_GETTYPE32, do_atm_ioctl)
HANDLE_IOCTL(ATM_GETESI32, do_atm_ioctl)
HANDLE_IOCTL(ATM_GETADDR32, do_atm_ioctl)
HANDLE_IOCTL(ATM_RSTADDR32, do_atm_ioctl)
HANDLE_IOCTL(ATM_ADDADDR32, do_atm_ioctl)
HANDLE_IOCTL(ATM_DELADDR32, do_atm_ioctl)
HANDLE_IOCTL(ATM_GETCIRANGE32, do_atm_ioctl)
HANDLE_IOCTL(ATM_SETCIRANGE32, do_atm_ioctl)
HANDLE_IOCTL(ATM_SETESI32, do_atm_ioctl)
HANDLE_IOCTL(ATM_SETESIF32, do_atm_ioctl)
HANDLE_IOCTL(ATM_GETSTAT32, do_atm_ioctl)
HANDLE_IOCTL(ATM_GETSTATZ32, do_atm_ioctl)
HANDLE_IOCTL(ATM_GETLOOP32, do_atm_ioctl)
HANDLE_IOCTL(ATM_SETLOOP32, do_atm_ioctl)
HANDLE_IOCTL(ATM_QUERYLOOP32, do_atm_ioctl)
HANDLE_IOCTL(SONET_GETSTAT, do_atm_ioctl)
HANDLE_IOCTL(SONET_GETSTATZ, do_atm_ioctl)
HANDLE_IOCTL(SONET_GETDIAG, do_atm_ioctl)
HANDLE_IOCTL(SONET_SETDIAG, do_atm_ioctl)
HANDLE_IOCTL(SONET_CLRDIAG, do_atm_ioctl)
HANDLE_IOCTL(SONET_SETFRAMING, do_atm_ioctl)
HANDLE_IOCTL(SONET_GETFRAMING, do_atm_ioctl)
HANDLE_IOCTL(SONET_GETFRSENSE, do_atm_ioctl)
/* block stuff */
HANDLE_IOCTL(BLKBSZGET_32, do_blkbszget)
HANDLE_IOCTL(BLKBSZSET_32, do_blkbszset)
HANDLE_IOCTL(BLKGETSIZE64_32, do_blkgetsize64)
/* vfat */
HANDLE_IOCTL(VFAT_IOCTL_READDIR_BOTH32, vfat_ioctl32)
HANDLE_IOCTL(VFAT_IOCTL_READDIR_SHORT32, vfat_ioctl32)
HANDLE_IOCTL(REISERFS_IOC_UNPACK32, reiserfs_ioctl32)
/* Raw devices */
HANDLE_IOCTL(RAW_SETBIND, raw_ioctl)
HANDLE_IOCTL(RAW_GETBIND, raw_ioctl)
/* Serial */
HANDLE_IOCTL(TIOCGSERIAL, serial_struct_ioctl)
HANDLE_IOCTL(TIOCSSERIAL, serial_struct_ioctl)
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#ifdef TIOCGLTC
COMPATIBLE_IOCTL(TIOCGLTC)
COMPATIBLE_IOCTL(TIOCSLTC)
#endif
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#ifdef TIOCSTART
/*
 * For these two we have defintions in ioctls.h and/or termios.h on
 * 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
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/* Usbdevfs */
HANDLE_IOCTL(USBDEVFS_CONTROL32, do_usbdevfs_control)
HANDLE_IOCTL(USBDEVFS_BULK32, do_usbdevfs_bulk)
HANDLE_IOCTL(USBDEVFS_DISCSIGNAL32, do_usbdevfs_discsignal)
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COMPATIBLE_IOCTL(USBDEVFS_IOCTL32)
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/* i2c */
HANDLE_IOCTL(I2C_FUNCS, w_long)
HANDLE_IOCTL(I2C_RDWR, do_i2c_rdwr_ioctl)
HANDLE_IOCTL(I2C_SMBUS, do_i2c_smbus_ioctl)
/* wireless */
HANDLE_IOCTL(SIOCGIWRANGE, do_wireless_ioctl)
HANDLE_IOCTL(SIOCSIWSPY, do_wireless_ioctl)
HANDLE_IOCTL(SIOCGIWSPY, do_wireless_ioctl)
HANDLE_IOCTL(SIOCSIWTHRSPY, do_wireless_ioctl)
HANDLE_IOCTL(SIOCGIWTHRSPY, do_wireless_ioctl)
HANDLE_IOCTL(SIOCGIWAPLIST, do_wireless_ioctl)
HANDLE_IOCTL(SIOCGIWSCAN, do_wireless_ioctl)
HANDLE_IOCTL(SIOCSIWESSID, do_wireless_ioctl)
HANDLE_IOCTL(SIOCGIWESSID, do_wireless_ioctl)
HANDLE_IOCTL(SIOCSIWNICKN, do_wireless_ioctl)
HANDLE_IOCTL(SIOCGIWNICKN, do_wireless_ioctl)
HANDLE_IOCTL(SIOCSIWENCODE, do_wireless_ioctl)
HANDLE_IOCTL(SIOCGIWENCODE, do_wireless_ioctl)
HANDLE_IOCTL(SIOCSIFBR, old_bridge_ioctl)
HANDLE_IOCTL(SIOCGIFBR, old_bridge_ioctl)
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HANDLE_IOCTL(RTC_IRQP_READ32, rtc_ioctl)
HANDLE_IOCTL(RTC_IRQP_SET32, rtc_ioctl)
HANDLE_IOCTL(RTC_EPOCH_READ32, rtc_ioctl)
HANDLE_IOCTL(RTC_EPOCH_SET32, rtc_ioctl)
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#if defined(CONFIG_NCP_FS) || defined(CONFIG_NCP_FS_MODULE)
HANDLE_IOCTL(NCP_IOC_NCPREQUEST_32, do_ncp_ncprequest)
HANDLE_IOCTL(NCP_IOC_GETMOUNTUID2_32, do_ncp_getmountuid2)
HANDLE_IOCTL(NCP_IOC_GET_FS_INFO_V2_32, do_ncp_getfsinfo2)
HANDLE_IOCTL(NCP_IOC_GETOBJECTNAME_32, do_ncp_getobjectname)
HANDLE_IOCTL(NCP_IOC_SETOBJECTNAME_32, do_ncp_setobjectname)
HANDLE_IOCTL(NCP_IOC_GETPRIVATEDATA_32, do_ncp_getprivatedata)
HANDLE_IOCTL(NCP_IOC_SETPRIVATEDATA_32, do_ncp_setprivatedata)
#endif

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/* dvb */
HANDLE_IOCTL(DMX_GET_EVENT, do_dmx_get_event)
HANDLE_IOCTL(VIDEO_GET_EVENT, do_video_get_event)
HANDLE_IOCTL(VIDEO_STILLPICTURE, do_video_stillpicture)
HANDLE_IOCTL(VIDEO_SET_SPU_PALETTE, do_video_set_spu_palette)
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/* parport */
COMPATIBLE_IOCTL(LPTIME)
COMPATIBLE_IOCTL(LPCHAR)
COMPATIBLE_IOCTL(LPABORTOPEN)
COMPATIBLE_IOCTL(LPCAREFUL)
COMPATIBLE_IOCTL(LPWAIT)
COMPATIBLE_IOCTL(LPSETIRQ)
COMPATIBLE_IOCTL(LPGETSTATUS)
COMPATIBLE_IOCTL(LPGETSTATUS)
COMPATIBLE_IOCTL(LPRESET)
/*LPGETSTATS not implemented, but no kernels seem to compile it in anyways*/
COMPATIBLE_IOCTL(LPGETFLAGS)
HANDLE_IOCTL(LPSETTIMEOUT, lp_timeout_trans)
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};
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int ioctl_table_size = ARRAY_SIZE(ioctl_start);