/*
* 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.
*/
#ifdef INCLUDES
#include <linux/config.h>
#include <linux/types.h>
#include <linux/compat.h>
#include <linux/kernel.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/devfs_fs.h>
#include <linux/tty.h>
#include <linux/vt_kern.h>
#include <linux/fb.h>
#include <linux/ext2_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 <net/sock.h> /* siocdevprivate_ioctl */
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci.h>
#include <net/bluetooth/rfcomm.h>
#include <linux/capi.h>
#include <scsi/scsi.h>
/* Ugly hack. */
#undef __KERNEL__
#include <scsi/scsi_ioctl.h>
#define __KERNEL__
#include <scsi/sg.h>
#include <asm/types.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 <asm/module.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>
#undef INCLUDES
#endif
#ifdef CODE
/* 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 EXT2_IOC32_GETVERSION _IOR('v', 1, int)
#define EXT2_IOC32_SETVERSION _IOW('v', 2, int)
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));
}
struct video_tuner32 {
compat_int_t tuner;
char name[32];
compat_ulong_t rangelow, rangehigh;
u32 flags; /* It is really u32 in videodev.h */
u16 mode, signal;
};
static int get_video_tuner32(struct video_tuner *kp, struct video_tuner32 __user *up)
{
int i;
if(get_user(kp->tuner, &up->tuner))
return -EFAULT;
for(i = 0; i < 32; i++)
__get_user(kp->name[i], &up->name[i]);
__get_user(kp->rangelow, &up->rangelow);
__get_user(kp->rangehigh, &up->rangehigh);
__get_user(kp->flags, &up->flags);
__get_user(kp->mode, &up->mode);
__get_user(kp->signal, &up->signal);
return 0;
}
static int put_video_tuner32(struct video_tuner *kp, struct video_tuner32 __user *up)
{
int i;
if(put_user(kp->tuner, &up->tuner))
return -EFAULT;
for(i = 0; i < 32; i++)
__put_user(kp->name[i], &up->name[i]);
__put_user(kp->rangelow, &up->rangelow);
__put_user(kp->rangehigh, &up->rangehigh);
__put_user(kp->flags, &up->flags);
__put_user(kp->mode, &up->mode);
__put_user(kp->signal, &up->signal);
return 0;
}
struct video_buffer32 {
compat_caddr_t base;
compat_int_t height, width, depth, bytesperline;
};
static int get_video_buffer32(struct video_buffer *kp, struct video_buffer32 __user *up)
{
u32 tmp;
if (get_user(tmp, &up->base))
return -EFAULT;
/* This is actually a physical address stored
* as a void pointer.
*/
kp->base = (void *)(unsigned long) tmp;
__get_user(kp->height, &up->height);
__get_user(kp->width, &up->width);
__get_user(kp->depth, &up->depth);
__get_user(kp->bytesperline, &up->bytesperline);
return 0;
}
static int put_video_buffer32(struct video_buffer *kp, struct video_buffer32 __user *up)
{
u32 tmp = (u32)((unsigned long)kp->base);
if(put_user(tmp, &up->base))
return -EFAULT;
__put_user(kp->height, &up->height);
__put_user(kp->width, &up->width);
__put_user(kp->depth, &up->depth);
__put_user(kp->bytesperline, &up->bytesperline);
return 0;
}
struct video_clip32 {
s32 x, y, width, height; /* Its really s32 in videodev.h */
compat_caddr_t next;
};
struct video_window32 {
u32 x, y, width, height, chromakey, flags;
compat_caddr_t clips;
compat_int_t clipcount;
};
/* You get back everything except the clips... */
static int put_video_window32(struct video_window *kp, struct video_window32 __user *up)
{
if(put_user(kp->x, &up->x))
return -EFAULT;
__put_user(kp->y, &up->y);
__put_user(kp->width, &up->width);
__put_user(kp->height, &up->height);
__put_user(kp->chromakey, &up->chromakey);
__put_user(kp->flags, &up->flags);
__put_user(kp->clipcount, &up->clipcount);
return 0;
}
#define VIDIOCGTUNER32 _IOWR('v',4, struct video_tuner32)
#define VIDIOCSTUNER32 _IOW('v',5, struct video_tuner32)
#define VIDIOCGWIN32 _IOR('v',9, struct video_window32)
#define VIDIOCSWIN32 _IOW('v',10, struct video_window32)
#define VIDIOCGFBUF32 _IOR('v',11, struct video_buffer32)
#define VIDIOCSFBUF32 _IOW('v',12, struct video_buffer32)
#define VIDIOCGFREQ32 _IOR('v',14, u32)
#define VIDIOCSFREQ32 _IOW('v',15, u32)
enum {
MaxClips = (~0U-sizeof(struct video_window))/sizeof(struct video_clip)
};
static int do_set_window(unsigned int fd, unsigned int cmd, unsigned long arg)
{
struct video_window32 __user *up = compat_ptr(arg);
struct video_window __user *vw;
struct video_clip __user *p;
int nclips;
u32 n;
if (get_user(nclips, &up->clipcount))
return -EFAULT;
/* Peculiar interface... */
if (nclips < 0)
nclips = VIDEO_CLIPMAP_SIZE;
if (nclips > MaxClips)
return -ENOMEM;
vw = compat_alloc_user_space(sizeof(struct video_window) +
nclips * sizeof(struct video_clip));
p = nclips ? (struct video_clip __user *)(vw + 1) : NULL;
if (get_user(n, &up->x) || put_user(n, &vw->x) ||
get_user(n, &up->y) || put_user(n, &vw->y) ||
get_user(n, &up->width) || put_user(n, &vw->width) ||
get_user(n, &up->height) || put_user(n, &vw->height) ||
get_user(n, &up->chromakey) || put_user(n, &vw->chromakey) ||
get_user(n, &up->flags) || put_user(n, &vw->flags) ||
get_user(n, &up->clipcount) || put_user(n, &vw->clipcount) ||
get_user(n, &up->clips) || put_user(p, &vw->clips))
return -EFAULT;
if (nclips) {
struct video_clip32 __user *u = compat_ptr(n);
int i;
if (!u)
return -EINVAL;
for (i = 0; i < nclips; i++, u++, p++) {
s32 v;
if (get_user(v, &u->x) ||
put_user(v, &p->x) ||
get_user(v, &u->y) ||
put_user(v, &p->y) ||
get_user(v, &u->width) ||
put_user(v, &p->width) ||
get_user(v, &u->height) ||
put_user(v, &p->height) ||
put_user(NULL, &p->next))
return -EFAULT;
}
}
return sys_ioctl(fd, VIDIOCSWIN, (unsigned long)p);
}
static int do_video_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg)
{
union {
struct video_tuner vt;
struct video_buffer vb;
struct video_window vw;
unsigned long vx;
} karg;
mm_segment_t old_fs = get_fs();
void __user *up = compat_ptr(arg);
int err = 0;
/* First, convert the command. */
switch(cmd) {
case VIDIOCGTUNER32: cmd = VIDIOCGTUNER; break;
case VIDIOCSTUNER32: cmd = VIDIOCSTUNER; break;
case VIDIOCGWIN32: cmd = VIDIOCGWIN; break;
case VIDIOCGFBUF32: cmd = VIDIOCGFBUF; break;
case VIDIOCSFBUF32: cmd = VIDIOCSFBUF; break;
case VIDIOCGFREQ32: cmd = VIDIOCGFREQ; break;
case VIDIOCSFREQ32: cmd = VIDIOCSFREQ; break;
};
switch(cmd) {
case VIDIOCSTUNER:
case VIDIOCGTUNER:
err = get_video_tuner32(&karg.vt, up);
break;
case VIDIOCSFBUF:
err = get_video_buffer32(&karg.vb, up);
break;
case VIDIOCSFREQ:
err = get_user(karg.vx, (u32 __user *)up);
break;
};
if(err)
goto out;
set_fs(KERNEL_DS);
err = sys_ioctl(fd, cmd, (unsigned long)&karg);
set_fs(old_fs);
if(err == 0) {
switch(cmd) {
case VIDIOCGTUNER:
err = put_video_tuner32(&karg.vt, up);
break;
case VIDIOCGWIN:
err = put_video_window32(&karg.vw, up);
break;
case VIDIOCGFBUF:
err = put_video_buffer32(&karg.vb, up);
break;
case VIDIOCGFREQ:
err = put_user(((u32)karg.vx), (u32 __user *)up);
break;
};
}
out:
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 < 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 {
if (i <= ifc32.ifc_len)
ifc32.ifc_len = i;
else
ifc32.ifc_len = i - sizeof (struct ifreq32);
}
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;
}
struct fb_fix_screeninfo32 {
char id[16];
compat_caddr_t smem_start;
u32 smem_len;
u32 type;
u32 type_aux;
u32 visual;
u16 xpanstep;
u16 ypanstep;
u16 ywrapstep;
u32 line_length;
compat_caddr_t mmio_start;
u32 mmio_len;
u32 accel;
u16 reserved[3];
};
struct fb_cmap32 {
u32 start;
u32 len;
compat_caddr_t red;
compat_caddr_t green;
compat_caddr_t blue;
compat_caddr_t transp;
};
static int fb_getput_cmap(unsigned int fd, unsigned int cmd, unsigned long arg)
{
struct fb_cmap_user __user *cmap;
struct fb_cmap32 __user *cmap32;
__u32 data;
int err;
cmap = compat_alloc_user_space(sizeof(*cmap));
cmap32 = compat_ptr(arg);
if (copy_in_user(&cmap->start, &cmap32->start, 2 * sizeof(__u32)))
return -EFAULT;
if (get_user(data, &cmap32->red) ||
put_user(compat_ptr(data), &cmap->red) ||
get_user(data, &cmap32->green) ||
put_user(compat_ptr(data), &cmap->green) ||
get_user(data, &cmap32->blue) ||
put_user(compat_ptr(data), &cmap->blue) ||
get_user(data, &cmap32->transp) ||
put_user(compat_ptr(data), &cmap->transp))
return -EFAULT;
err = sys_ioctl(fd, cmd, (unsigned long) cmap);
if (!err) {
if (copy_in_user(&cmap32->start,
&cmap->start,
2 * sizeof(__u32)))
err = -EFAULT;
}
return err;
}
static int do_fscreeninfo_to_user(struct fb_fix_screeninfo *fix,
struct fb_fix_screeninfo32 __user *fix32)
{
__u32 data;
int err;
err = copy_to_user(&fix32->id, &fix->id, sizeof(fix32->id));
data = (__u32) (unsigned long) fix->smem_start;
err |= put_user(data, &fix32->smem_start);
err |= put_user(fix->smem_len, &fix32->smem_len);
err |= put_user(fix->type, &fix32->type);
err |= put_user(fix->type_aux, &fix32->type_aux);
err |= put_user(fix->visual, &fix32->visual);
err |= put_user(fix->xpanstep, &fix32->xpanstep);
err |= put_user(fix->ypanstep, &fix32->ypanstep);
err |= put_user(fix->ywrapstep, &fix32->ywrapstep);
err |= put_user(fix->line_length, &fix32->line_length);
data = (__u32) (unsigned long) fix->mmio_start;
err |= put_user(data, &fix32->mmio_start);
err |= put_user(fix->mmio_len, &fix32->mmio_len);
err |= put_user(fix->accel, &fix32->accel);
err |= copy_to_user(fix32->reserved, fix->reserved,
sizeof(fix->reserved));
return err;
}
static int fb_get_fscreeninfo(unsigned int fd, unsigned int cmd, unsigned long arg)
{
mm_segment_t old_fs;
struct fb_fix_screeninfo fix;
struct fb_fix_screeninfo32 __user *fix32;
int err;
fix32 = compat_ptr(arg);
old_fs = get_fs();
set_fs(KERNEL_DS);
err = sys_ioctl(fd, cmd, (unsigned long) &fix);
set_fs(old_fs);
if (!err)
err = do_fscreeninfo_to_user(&fix, fix32);
return err;
}
static int fb_ioctl_trans(unsigned int fd, unsigned int cmd, unsigned long arg)
{
int err;
switch (cmd) {
case FBIOGET_FSCREENINFO:
err = fb_get_fscreeninfo(fd,cmd, arg);
break;
case FBIOGETCMAP:
case FBIOPUTCMAP:
err = fb_getput_cmap(fd, cmd, arg);
break;
default:
do {
static int count;
if (++count <= 20)
printk("%s: Unknown fb ioctl cmd fd(%d) "
"cmd(%08x) arg(%08lx)\n",
__FUNCTION__, fd, cmd, arg);
} while(0);
err = -ENOSYS;
break;
};
return err;
}
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 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: