/*
 * 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/joystick.h>

#include <linux/types.h>
#include <linux/compat.h>
#include <linux/kernel.h>
#include <linux/capability.h>
#include <linux/compiler.h>
#include <linux/sched.h>
#include <linux/smp.h>
#include <linux/ioctl.h>
#include <linux/if.h>
#include <linux/if_bridge.h>
#include <linux/slab.h>
#include <linux/raid/md.h>
#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>
#include <linux/fs.h>
#include <linux/file.h>
#include <linux/ppp_defs.h>
#include <linux/if_ppp.h>
#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>
#include <linux/videodev.h>
#include <linux/netdevice.h>
#include <linux/raw.h>
#include <linux/smb_fs.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/if_tun.h>
#include <linux/ctype.h>
#include <linux/syscalls.h>
#include <linux/i2c.h>
#include <linux/i2c-dev.h>
#include <linux/atalk.h>
#include <linux/loop.h>

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

#include <linux/capi.h>
#include <linux/gigaset_dev.h>

#ifdef CONFIG_BLOCK
#include <scsi/scsi.h>
#include <scsi/scsi_ioctl.h>
#include <scsi/sg.h>
#endif

#include <asm/uaccess.h>
#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/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/pktcdvd.h>

#include <linux/hiddev.h>

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

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

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));
}

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;
}

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));

        err =  put_user(compat_ptr(fp), &up_native->iFrame);
        err |= put_user(size, &up_native->size);
        if (err)
                return -EFAULT;

        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));
        err  = put_user(compat_ptr(palp), &up_native->palette);
        err |= put_user(length, &up_native->length);
        if (err)
                return -EFAULT;

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

        return err;
}

#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;
}

static int do_siocgstampns(unsigned int fd, unsigned int cmd, unsigned long arg)
{
        struct compat_timespec __user *up = compat_ptr(arg);
        struct timespec kts;
        mm_segment_t old_fs = get_fs();
        int err;

        set_fs(KERNEL_DS);
        err = sys_ioctl(fd, cmd, (unsigned long)&kts);
        set_fs(old_fs);
        if (!err) {
                err = put_user(kts.tv_sec, &up->tv_sec);
                err |= __put_user(kts.tv_nsec, &up->tv_nsec);
        }
        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 ifreq __user *uifr;
        int err;

        uifr = compat_alloc_user_space(sizeof(struct ifreq));
        if (copy_in_user(uifr, compat_ptr(arg), sizeof(struct ifreq32)))
                return -EFAULT;

        err = sys_ioctl(fd, SIOCGIFNAME, (unsigned long)uifr);
        if (err)
                return err;

        if (copy_in_user(compat_ptr(arg), uifr, sizeof(struct ifreq32)))
                return -EFAULT;

        return 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);
        for (i = 0, j = 0;
             i + sizeof (struct ifreq32) <= ifc32.ifc_len && j < ifc.ifc_len;
             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 {
                ifc32.ifc_len = i;
        }
        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;
        };
}

static 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 TUNGETIFF:
                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;
        }

        if (ret) {
                ret = -EFAULT;
                goto out;
        }

        set_fs (KERNEL_DS);
        ret = sys_ioctl (fd, cmd, (unsigned long) r);
        set_fs (old_fs);

out:
        if (mysock)
                sockfd_put(mysock);

        return ret;
}
#endif

#ifdef CONFIG_BLOCK
typedef struct sg_io_hdr32 {
        compat_int_t interface_id;      /* [i] 'S' for SCSI generic (required) */
        compat_int_t dxfer_direction;   /* [i] data transfer direction  */
        unsigned char cmd_len;          /* [i] SCSI command length ( <= 16 bytes) */
        unsigned char mx_sb_len;                /* [i] max length to write to sbp */
        unsigned short iovec_count;     /* [i] 0 implies no scatter gather */
        compat_uint_t dxfer_len;                /* [i] byte count of data transfer */
        compat_uint_t dxferp;           /* [i], [*io] points to data transfer memory
                                              or scatter gather list */
        compat_uptr_t cmdp;             /* [i], [*i] points to command to perform */
        compat_uptr_t sbp;              /* [i], [*o] points to sense_buffer memory */
        compat_uint_t timeout;          /* [i] MAX_UINT->no timeout (unit: millisec) */
        compat_uint_t flags;            /* [i] 0 -> default, see SG_FLAG... */
        compat_int_t pack_id;           /* [i->o] unused internally (normally) */
        compat_uptr_t usr_ptr;          /* [i->o] unused internally */
        unsigned char status;           /* [o] scsi status */
        unsigned char masked_status;    /* [o] shifted, masked scsi status */
        unsigned char msg_status;               /* [o] messaging level data (optional) */
        unsigned char sb_len_wr;                /* [o] byte count actually written to sbp */
        unsigned short host_status;     /* [o] errors from host adapter */
        unsigned short driver_status;   /* [o] errors from software driver */
        compat_int_t resid;             /* [o] dxfer_len - actual_transferred */
        compat_uint_t duration;         /* [o] time taken by cmd (unit: millisec) */
        compat_uint_t info;             /* [o] auxiliary information */
} sg_io_hdr32_t;  /* 64 bytes long (on sparc32) */

typedef struct sg_iovec32 {
        compat_uint_t iov_base;
        compat_uint_t iov_len;
} sg_iovec32_t;

static int sg_build_iovec(sg_io_hdr_t __user *sgio, void __user *dxferp, u16 iovec_count)
{
        sg_iovec_t __user *iov = (sg_iovec_t __user *) (sgio + 1);
        sg_iovec32_t __user *iov32 = dxferp;
        int i;

        for (i = 0; i < iovec_count; i++) {
                u32 base, len;

                if (get_user(base, &iov32[i].iov_base) ||
                    get_user(len, &iov32[i].iov_len) ||
                    put_user(compat_ptr(base), &iov[i].iov_base) ||
                    put_user(len, &iov[i].iov_len))
                        return -EFAULT;
        }

        if (put_user(iov, &sgio->dxferp))
                return -EFAULT;
        return 0;
}

static int sg_ioctl_trans(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;
}

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;
        sg_req_info_t __user *r;
        struct compat_sg_req_info __user *o = (void __user *)arg;
        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;
}
#endif /* CONFIG_BLOCK */

struct sock_fprog32 {
        unsigned short  len;
        compat_caddr_t  filter;
};

#define PPPIOCSPASS32   _IOW('t', 71, struct sock_fprog32)
#define PPPIOCSACTIVE32 _IOW('t', 70, struct sock_fprog32)

static int ppp_sock_fprog_ioctl_trans(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;
}


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

struct mtpos32 {
        compat_long_t   mt_blkno;
};
#define MTIOCPOS32      _IOR('m', 3, struct mtpos32)

static int mt_ioctl_trans(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;
}

#endif /* CONFIG_BLOCK */

#ifdef CONFIG_VT

static int vt_check(struct file *file)
{
        struct tty_struct *tty;
        struct inode *inode = file->f_path.dentry->d_inode;
        struct vc_data *vc;
        
        if (file->f_op->unlocked_ioctl != tty_ioctl)
                return -EINVAL;
                        
        tty = (struct tty_struct *)file->private_data;
        if (tty_paranoia_check(tty, inode, "tty_ioctl"))
                return -EINVAL;
                                                        
        if (tty->ops->ioctl != vt_ioctl)
                return -EINVAL;

        vc = (struct vc_data *)tty->driver_data;
        if (!vc_cons_allocated(vc->vc_num))     /* impossible? */
                return -ENOIOCTLCMD;

        /*
         * To have permissions to do most of the vt ioctls, we either have
         * to be the owner of the tty, or have CAP_SYS_TTY_CONFIG.
         */
        if (current->signal->tty == tty || capable(CAP_SYS_TTY_CONFIG))
                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);
        struct vc_data *vc;

        if (perm < 0)
                return perm;
        if (copy_from_user(&tmp, user_ud, sizeof tmp))
                return -EFAULT;
        if (tmp.entries)
                if (!access_ok(VERIFY_WRITE, compat_ptr(tmp.entries),
                                tmp.entry_ct*sizeof(struct unipair)))
                        return -EFAULT;
        vc = ((struct tty_struct *)file->private_data)->driver_data;
        switch (cmd) {
        case PIO_UNIMAP:
                if (!perm)
                        return -EPERM;
                return con_set_unimap(vc, tmp.entry_ct,
                                                compat_ptr(tmp.entries));
        case GIO_UNIMAP:
                if (!perm && fg_console != vc->vc_num)
                        return -EPERM;
                return con_get_unimap(vc, 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 ARRAY_SIZE(atm_ioctl_map)

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

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

#ifdef CONFIG_BLOCK
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;
}
#endif /* CONFIG_BLOCK */

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;
        unsigned int base;

        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;
                if (__get_user(udata, &ss32->iomem_base))
                        return -EFAULT;
                ss.iomem_base = compat_ptr(udata);
                if (__get_user(ss.iomem_reg_shift, &ss32->iomem_reg_shift) ||
                    __get_user(ss.port_high, &ss32->port_high))
                        return -EFAULT;
                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;
                base = (unsigned long)ss.iomem_base  >> 32 ?
                        0xffffffff : (unsigned)(unsigned long)ss.iomem_base;
                if (__put_user(base, &ss32->iomem_base) ||
                    __put_user(ss.iomem_reg_shift, &ss32->iomem_reg_shift) ||
                    __put_user(ss.port_high, &ss32->port_high))
                        return -EFAULT;
        }
        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);
}

/* 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;
}

#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:
                return sys_ioctl(fd, RTC_IRQP_SET, arg); 
        case RTC_EPOCH_SET32:
                return sys_ioctl(fd, RTC_EPOCH_SET, arg);
        default:
                /* unreached */
                return -ENOIOCTLCMD;
        }
}

static int
lp_timeout_trans(unsigned int fd, unsigned int cmd, unsigned long arg)
{
        struct compat_timeval __user *tc = (struct compat_timeval __user *)arg;
        struct timeval __user *tn = compat_alloc_user_space(sizeof(struct timeval));
        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);
}


typedef int (*ioctl_trans_handler_t)(unsigned int, unsigned int,
                                        unsigned long, struct file *);

struct ioctl_trans {
        unsigned long cmd;
        ioctl_trans_handler_t handler;
        struct ioctl_trans *next;
};

#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 },

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

static struct ioctl_trans ioctl_start[] = {
/* 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)
ULONG_IOCTL(TCSBRKP)
COMPATIBLE_IOCTL(TCXONC)
COMPATIBLE_IOCTL(TCFLSH)
COMPATIBLE_IOCTL(TCGETS)
COMPATIBLE_IOCTL(TCSETS)
COMPATIBLE_IOCTL(TCSETSW)
COMPATIBLE_IOCTL(TCSETSF)
COMPATIBLE_IOCTL(TIOCLINUX)
COMPATIBLE_IOCTL(TIOCSBRK)
COMPATIBLE_IOCTL(TIOCCBRK)
ULONG_IOCTL(TIOCMIWAIT)
COMPATIBLE_IOCTL(TIOCGICOUNT)
/* 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)
ULONG_IOCTL(TIOCSCTTY)
COMPATIBLE_IOCTL(TIOCGPTN)
COMPATIBLE_IOCTL(TIOCSPTLCK)
COMPATIBLE_IOCTL(TIOCSERGETLSR)
#ifdef TCGETS2
COMPATIBLE_IOCTL(TCGETS2)
COMPATIBLE_IOCTL(TCSETS2)
COMPATIBLE_IOCTL(TCSETSW2)
COMPATIBLE_IOCTL(TCSETSF2)
#endif
/* Little f */
COMPATIBLE_IOCTL(FIOCLEX)
COMPATIBLE_IOCTL(FIONCLEX)
COMPATIBLE_IOCTL(FIOASYNC)
COMPATIBLE_IOCTL(FIONBIO)
COMPATIBLE_IOCTL(FIONREAD)  /* This is also TIOCINQ */
/* 0x00 */
COMPATIBLE_IOCTL(FIBMAP)
COMPATIBLE_IOCTL(FIGETBSZ)
/* RAID */
COMPATIBLE_IOCTL(RAID_VERSION)
COMPATIBLE_IOCTL(GET_ARRAY_INFO)
COMPATIBLE_IOCTL(GET_DISK_INFO)
COMPATIBLE_IOCTL(PRINT_RAID_DEBUG)
COMPATIBLE_IOCTL(RAID_AUTORUN)
COMPATIBLE_IOCTL(CLEAR_ARRAY)
COMPATIBLE_IOCTL(ADD_NEW_DISK)
ULONG_IOCTL(HOT_REMOVE_DISK)
COMPATIBLE_IOCTL(SET_ARRAY_INFO)
COMPATIBLE_IOCTL(SET_DISK_INFO)
COMPATIBLE_IOCTL(WRITE_RAID_INFO)
COMPATIBLE_IOCTL(UNPROTECT_ARRAY)
COMPATIBLE_IOCTL(PROTECT_ARRAY)
ULONG_IOCTL(HOT_ADD_DISK)
ULONG_IOCTL(SET_DISK_FAULTY)
COMPATIBLE_IOCTL(RUN_ARRAY)
COMPATIBLE_IOCTL(STOP_ARRAY)
COMPATIBLE_IOCTL(STOP_ARRAY_RO)
COMPATIBLE_IOCTL(RESTART_ARRAY_RW)
COMPATIBLE_IOCTL(GET_BITMAP_FILE)
ULONG_IOCTL(SET_BITMAP_FILE)
/* Big K */
COMPATIBLE_IOCTL(PIO_FONT)
COMPATIBLE_IOCTL(GIO_FONT)
COMPATIBLE_IOCTL(PIO_CMAP)
COMPATIBLE_IOCTL(GIO_CMAP)
ULONG_IOCTL(KDSIGACCEPT)
COMPATIBLE_IOCTL(KDGETKEYCODE)
COMPATIBLE_IOCTL(KDSETKEYCODE)
ULONG_IOCTL(KIOCSOUND)
ULONG_IOCTL(KDMKTONE)
COMPATIBLE_IOCTL(KDGKBTYPE)
ULONG_IOCTL(KDSETMODE)
COMPATIBLE_IOCTL(KDGETMODE)
ULONG_IOCTL(KDSKBMODE)
COMPATIBLE_IOCTL(KDGKBMODE)
ULONG_IOCTL(KDSKBMETA)
COMPATIBLE_IOCTL(KDGKBMETA)
COMPATIBLE_IOCTL(KDGKBENT)
COMPATIBLE_IOCTL(KDSKBENT)
COMPATIBLE_IOCTL(KDGKBSENT)
COMPATIBLE_IOCTL(KDSKBSENT)
COMPATIBLE_IOCTL(KDGKBDIACR)
COMPATIBLE_IOCTL(KDSKBDIACR)
COMPATIBLE_IOCTL(KDKBDREP)
COMPATIBLE_IOCTL(KDGKBLED)
ULONG_IOCTL(KDSKBLED)
COMPATIBLE_IOCTL(KDGETLED)
ULONG_IOCTL(KDSETLED)
COMPATIBLE_IOCTL(GIO_SCRNMAP)
COMPATIBLE_IOCTL(PIO_SCRNMAP)
COMPATIBLE_IOCTL(GIO_UNISCRNMAP)
COMPATIBLE_IOCTL(PIO_UNISCRNMAP)
COMPATIBLE_IOCTL(PIO_FONTRESET)
COMPATIBLE_IOCTL(PIO_UNIMAPCLR)
#ifdef CONFIG_BLOCK
/* Big S */
COMPATIBLE_IOCTL(SCSI_IOCTL_GET_IDLUN)
COMPATIBLE_IOCTL(SCSI_IOCTL_DOORLOCK)
COMPATIBLE_IOCTL(SCSI_IOCTL_DOORUNLOCK)
COMPATIBLE_IOCTL(SCSI_IOCTL_TEST_UNIT_READY)
COMPATIBLE_IOCTL(SCSI_IOCTL_GET_BUS_NUMBER)
COMPATIBLE_IOCTL(SCSI_IOCTL_SEND_COMMAND)
COMPATIBLE_IOCTL(SCSI_IOCTL_PROBE_HOST)
COMPATIBLE_IOCTL(SCSI_IOCTL_GET_PCI)
#endif
/* Big T */
COMPATIBLE_IOCTL(TUNSETNOCSUM)
COMPATIBLE_IOCTL(TUNSETDEBUG)
COMPATIBLE_IOCTL(TUNSETPERSIST)
COMPATIBLE_IOCTL(TUNSETOWNER)
COMPATIBLE_IOCTL(TUNSETLINK)
COMPATIBLE_IOCTL(TUNSETGROUP)
COMPATIBLE_IOCTL(TUNGETFEATURES)
COMPATIBLE_IOCTL(TUNSETOFFLOAD)
COMPATIBLE_IOCTL(TUNSETTXFILTER)
/* Big V */
COMPATIBLE_IOCTL(VT_SETMODE)
COMPATIBLE_IOCTL(VT_GETMODE)
COMPATIBLE_IOCTL(VT_GETSTATE)
COMPATIBLE_IOCTL(VT_OPENQRY)
ULONG_IOCTL(VT_ACTIVATE)
ULONG_IOCTL(VT_WAITACTIVE)
ULONG_IOCTL(VT_RELDISP)