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compat_ioctl.c

/*
 * 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/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/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/tty.h>
#include <linux/vt_kern.h>
#include <linux/fb.h>
#include <linux/ext2_fs.h>
#include <linux/ext3_jbd.h>
#include <linux/ext3_fs.h>
#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 <linux/blktrace_api.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 <linux/gigaset_dev.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>

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

/* 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)
#define EXT3_IOC32_GETVERSION             _IOR('f', 3, int)
#define EXT3_IOC32_SETVERSION             _IOW('f', 4, int)
#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

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

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;
}

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));
}

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));
}

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;
}

#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);
      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;
      };
}

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;
      }

      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

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;
}

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;
}

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 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 __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 ARRAY_SIZE(fd_ioctl_trans_table)

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;

out:
      kfree(karg);
      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;
}

#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;
      }
}

#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

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);
}

#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 },


struct ioctl_trans ioctl_start[] = {
#include <linux/compat_ioctl.h>
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)
HANDLE_IOCTL(SG_GET_REQUEST_TABLE, sg_grt_trans)
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)
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
/* 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)
#ifdef TIOCGLTC
COMPATIBLE_IOCTL(TIOCGLTC)
COMPATIBLE_IOCTL(TIOCSLTC)
#endif
#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
/* Usbdevfs */
HANDLE_IOCTL(USBDEVFS_CONTROL32, do_usbdevfs_control)
HANDLE_IOCTL(USBDEVFS_BULK32, do_usbdevfs_bulk)
HANDLE_IOCTL(USBDEVFS_DISCSIGNAL32, do_usbdevfs_discsignal)
COMPATIBLE_IOCTL(USBDEVFS_IOCTL32)
/* 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)
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)

#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

/* dvb */
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)

/* 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)
};

int ioctl_table_size = ARRAY_SIZE(ioctl_start);

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