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linux-next/fs/compat_ioctl.c
Linus Torvalds 33caf82acf Merge branch 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 
Pull misc vfs updates from Al Viro:
 "All kinds of stuff.  That probably should've been 5 or 6 separate
  branches, but by the time I'd realized how large and mixed that bag
  had become it had been too close to -final to play with rebasing.

  Some fs/namei.c cleanups there, memdup_user_nul() introduction and
  switching open-coded instances, burying long-dead code, whack-a-mole
  of various kinds, several new helpers for ->llseek(), assorted
  cleanups and fixes from various people, etc.

  One piece probably deserves special mention - Neil's
  lookup_one_len_unlocked().  Similar to lookup_one_len(), but gets
  called without ->i_mutex and tries to avoid ever taking it.  That, of
  course, means that it's not useful for any directory modifications,
  but things like getting inode attributes in nfds readdirplus are fine
  with that.  I really should've asked for moratorium on lookup-related
  changes this cycle, but since I hadn't done that early enough...  I
  *am* asking for that for the coming cycle, though - I'm going to try
  and get conversion of i_mutex to rwsem with ->lookup() done under lock
  taken shared.

  There will be a patch closer to the end of the window, along the lines
  of the one Linus had posted last May - mechanical conversion of
  ->i_mutex accesses to inode_lock()/inode_unlock()/inode_trylock()/
  inode_is_locked()/inode_lock_nested().  To quote Linus back then:

    -----
    |    This is an automated patch using
    |
    |        sed 's/mutex_lock(&\(.*\)->i_mutex)/inode_lock(\1)/'
    |        sed 's/mutex_unlock(&\(.*\)->i_mutex)/inode_unlock(\1)/'
    |        sed 's/mutex_lock_nested(&\(.*\)->i_mutex,[     ]*I_MUTEX_\([A-Z0-9_]*\))/inode_lock_nested(\1, I_MUTEX_\2)/'
    |        sed 's/mutex_is_locked(&\(.*\)->i_mutex)/inode_is_locked(\1)/'
    |        sed 's/mutex_trylock(&\(.*\)->i_mutex)/inode_trylock(\1)/'
    |
    |    with a very few manual fixups
    -----

  I'm going to send that once the ->i_mutex-affecting stuff in -next
  gets mostly merged (or when Linus says he's about to stop taking
  merges)"

* 'work.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (63 commits)
  nfsd: don't hold i_mutex over userspace upcalls
  fs:affs:Replace time_t with time64_t
  fs/9p: use fscache mutex rather than spinlock
  proc: add a reschedule point in proc_readfd_common()
  logfs: constify logfs_block_ops structures
  fcntl: allow to set O_DIRECT flag on pipe
  fs: __generic_file_splice_read retry lookup on AOP_TRUNCATED_PAGE
  fs: xattr: Use kvfree()
  [s390] page_to_phys() always returns a multiple of PAGE_SIZE
  nbd: use ->compat_ioctl()
  fs: use block_device name vsprintf helper
  lib/vsprintf: add %*pg format specifier
  fs: use gendisk->disk_name where possible
  poll: plug an unused argument to do_poll
  amdkfd: don't open-code memdup_user()
  cdrom: don't open-code memdup_user()
  rsxx: don't open-code memdup_user()
  mtip32xx: don't open-code memdup_user()
  [um] mconsole: don't open-code memdup_user_nul()
  [um] hostaudio: don't open-code memdup_user()
  ...
2016-01-12 17:11:47 -08:00

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/*
* ioctl32.c: Conversion between 32bit and 64bit native ioctls.
*
* Copyright (C) 1997-2000 Jakub Jelinek (jakub@redhat.com)
* Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be)
* Copyright (C) 2001,2002 Andi Kleen, SuSE Labs
* Copyright (C) 2003 Pavel Machek (pavel@ucw.cz)
*
* These routines maintain argument size conversion between 32bit and 64bit
* ioctls.
*/
#include <linux/joystick.h>
#include <linux/types.h>
#include <linux/compat.h>
#include <linux/kernel.h>
#include <linux/capability.h>
#include <linux/compiler.h>
#include <linux/sched.h>
#include <linux/smp.h>
#include <linux/ioctl.h>
#include <linux/if.h>
#include <linux/if_bridge.h>
#include <linux/raid/md_u.h>
#include <linux/kd.h>
#include <linux/route.h>
#include <linux/in6.h>
#include <linux/ipv6_route.h>
#include <linux/skbuff.h>
#include <linux/netlink.h>
#include <linux/vt.h>
#include <linux/falloc.h>
#include <linux/fs.h>
#include <linux/file.h>
#include <linux/ppp_defs.h>
#include <linux/ppp-ioctl.h>
#include <linux/if_pppox.h>
#include <linux/mtio.h>
#include <linux/auto_fs.h>
#include <linux/auto_fs4.h>
#include <linux/tty.h>
#include <linux/vt_kern.h>
#include <linux/fb.h>
#include <linux/videodev2.h>
#include <linux/netdevice.h>
#include <linux/raw.h>
#include <linux/blkdev.h>
#include <linux/elevator.h>
#include <linux/rtc.h>
#include <linux/pci.h>
#include <linux/serial.h>
#include <linux/if_tun.h>
#include <linux/ctype.h>
#include <linux/syscalls.h>
#include <linux/i2c.h>
#include <linux/i2c-dev.h>
#include <linux/atalk.h>
#include <linux/gfp.h>
#include "internal.h"
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_sock.h>
#include <net/bluetooth/rfcomm.h>
#include <linux/capi.h>
#include <linux/gigaset_dev.h>
#ifdef CONFIG_BLOCK
#include <linux/cdrom.h>
#include <linux/fd.h>
#include <scsi/scsi.h>
#include <scsi/scsi_ioctl.h>
#include <scsi/sg.h>
#endif
#include <asm/uaccess.h>
#include <linux/ethtool.h>
#include <linux/mii.h>
#include <linux/if_bonding.h>
#include <linux/watchdog.h>
#include <linux/soundcard.h>
#include <linux/lp.h>
#include <linux/ppdev.h>
#include <linux/atm.h>
#include <linux/atmarp.h>
#include <linux/atmclip.h>
#include <linux/atmdev.h>
#include <linux/atmioc.h>
#include <linux/atmlec.h>
#include <linux/atmmpc.h>
#include <linux/atmsvc.h>
#include <linux/atm_tcp.h>
#include <linux/sonet.h>
#include <linux/atm_suni.h>
#include <linux/usb.h>
#include <linux/usbdevice_fs.h>
#include <linux/nbd.h>
#include <linux/random.h>
#include <linux/filter.h>
#include <linux/hiddev.h>
#define __DVB_CORE__
#include <linux/dvb/audio.h>
#include <linux/dvb/dmx.h>
#include <linux/dvb/frontend.h>
#include <linux/dvb/video.h>
#include <linux/sort.h>
#ifdef CONFIG_SPARC
#include <asm/fbio.h>
#endif
#define convert_in_user(srcptr, dstptr) \
({ \
typeof(*srcptr) val; \
\
get_user(val, srcptr) || put_user(val, dstptr); \
})
static int do_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
{
int err;
err = security_file_ioctl(file, cmd, arg);
if (err)
return err;
return vfs_ioctl(file, cmd, arg);
}
static int w_long(struct file *file,
unsigned int cmd, compat_ulong_t __user *argp)
{
int err;
unsigned long __user *valp = compat_alloc_user_space(sizeof(*valp));
if (valp == NULL)
return -EFAULT;
err = do_ioctl(file, cmd, (unsigned long)valp);
if (err)
return err;
if (convert_in_user(valp, argp))
return -EFAULT;
return 0;
}
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(struct file *file,
unsigned int cmd, struct compat_video_event __user *up)
{
struct video_event __user *kevent =
compat_alloc_user_space(sizeof(*kevent));
int err;
if (kevent == NULL)
return -EFAULT;
err = do_ioctl(file, cmd, (unsigned long)kevent);
if (!err) {
err = convert_in_user(&kevent->type, &up->type);
err |= convert_in_user(&kevent->timestamp, &up->timestamp);
err |= convert_in_user(&kevent->u.size.w, &up->u.size.w);
err |= convert_in_user(&kevent->u.size.h, &up->u.size.h);
err |= convert_in_user(&kevent->u.size.aspect_ratio,
&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(struct file *file,
unsigned int cmd, struct compat_video_still_picture __user *up)
{
struct video_still_picture __user *up_native;
compat_uptr_t fp;
int32_t size;
int err;
err = get_user(fp, &up->iFrame);
err |= get_user(size, &up->size);
if (err)
return -EFAULT;
up_native =
compat_alloc_user_space(sizeof(struct video_still_picture));
err = put_user(compat_ptr(fp), &up_native->iFrame);
err |= put_user(size, &up_native->size);
if (err)
return -EFAULT;
err = do_ioctl(file, 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(struct file *file,
unsigned int cmd, struct compat_video_spu_palette __user *up)
{
struct video_spu_palette __user *up_native;
compat_uptr_t palp;
int length, err;
err = get_user(palp, &up->palette);
err |= get_user(length, &up->length);
if (err)
return -EFAULT;
up_native = compat_alloc_user_space(sizeof(struct video_spu_palette));
err = put_user(compat_ptr(palp), &up_native->palette);
err |= put_user(length, &up_native->length);
if (err)
return -EFAULT;
err = do_ioctl(file, cmd, (unsigned long) up_native);
return err;
}
#ifdef CONFIG_BLOCK
typedef struct sg_io_hdr32 {
compat_int_t interface_id; /* [i] 'S' for SCSI generic (required) */
compat_int_t dxfer_direction; /* [i] data transfer direction */
unsigned char cmd_len; /* [i] SCSI command length ( <= 16 bytes) */
unsigned char mx_sb_len; /* [i] max length to write to sbp */
unsigned short iovec_count; /* [i] 0 implies no scatter gather */
compat_uint_t dxfer_len; /* [i] byte count of data transfer */
compat_uint_t dxferp; /* [i], [*io] points to data transfer memory
or scatter gather list */
compat_uptr_t cmdp; /* [i], [*i] points to command to perform */
compat_uptr_t sbp; /* [i], [*o] points to sense_buffer memory */
compat_uint_t timeout; /* [i] MAX_UINT->no timeout (unit: millisec) */
compat_uint_t flags; /* [i] 0 -> default, see SG_FLAG... */
compat_int_t pack_id; /* [i->o] unused internally (normally) */
compat_uptr_t usr_ptr; /* [i->o] unused internally */
unsigned char status; /* [o] scsi status */
unsigned char masked_status; /* [o] shifted, masked scsi status */
unsigned char msg_status; /* [o] messaging level data (optional) */
unsigned char sb_len_wr; /* [o] byte count actually written to sbp */
unsigned short host_status; /* [o] errors from host adapter */
unsigned short driver_status; /* [o] errors from software driver */
compat_int_t resid; /* [o] dxfer_len - actual_transferred */
compat_uint_t duration; /* [o] time taken by cmd (unit: millisec) */
compat_uint_t info; /* [o] auxiliary information */
} sg_io_hdr32_t; /* 64 bytes long (on sparc32) */
typedef struct sg_iovec32 {
compat_uint_t iov_base;
compat_uint_t iov_len;
} sg_iovec32_t;
static int sg_build_iovec(sg_io_hdr_t __user *sgio, void __user *dxferp, u16 iovec_count)
{
sg_iovec_t __user *iov = (sg_iovec_t __user *) (sgio + 1);
sg_iovec32_t __user *iov32 = dxferp;
int i;
for (i = 0; i < iovec_count; i++) {
u32 base, len;
if (get_user(base, &iov32[i].iov_base) ||
get_user(len, &iov32[i].iov_len) ||
put_user(compat_ptr(base), &iov[i].iov_base) ||
put_user(len, &iov[i].iov_len))
return -EFAULT;
}
if (put_user(iov, &sgio->dxferp))
return -EFAULT;
return 0;
}
static int sg_ioctl_trans(struct file *file, unsigned int cmd,
sg_io_hdr32_t __user *sgio32)
{
sg_io_hdr_t __user *sgio;
u16 iovec_count;
u32 data;
void __user *dxferp;
int err;
int interface_id;
if (get_user(interface_id, &sgio32->interface_id))
return -EFAULT;
if (interface_id != 'S')
return do_ioctl(file, cmd, (unsigned long)sgio32);
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;
err = do_ioctl(file, 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(struct file *file,
unsigned int cmd, struct compat_sg_req_info __user *o)
{
int err, i;
sg_req_info_t __user *r;
r = compat_alloc_user_space(sizeof(sg_req_info_t)*SG_MAX_QUEUE);
err = do_ioctl(file, cmd, (unsigned long)r);
if (err < 0)
return err;
for (i = 0; i < SG_MAX_QUEUE; i++) {
void __user *ptr;
int d;
if (copy_in_user(o + i, r + i, offsetof(sg_req_info_t, usr_ptr)) ||
get_user(ptr, &r[i].usr_ptr) ||
get_user(d, &r[i].duration) ||
put_user((u32)(unsigned long)(ptr), &o[i].usr_ptr) ||
put_user(d, &o[i].duration))
return -EFAULT;
}
return err;
}
#endif /* CONFIG_BLOCK */
struct sock_fprog32 {
unsigned short len;
compat_caddr_t filter;
};
#define PPPIOCSPASS32 _IOW('t', 71, struct sock_fprog32)
#define PPPIOCSACTIVE32 _IOW('t', 70, struct sock_fprog32)
static int ppp_sock_fprog_ioctl_trans(struct file *file,
unsigned int cmd, struct sock_fprog32 __user *u_fprog32)
{
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 do_ioctl(file, 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(struct file *file, unsigned int cmd,
struct ppp_idle32 __user *idle32)
{
struct ppp_idle __user *idle;
__kernel_time_t xmit, recv;
int err;
idle = compat_alloc_user_space(sizeof(*idle));
err = do_ioctl(file, 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(struct file *file, unsigned int cmd,
struct ppp_option_data32 __user *odata32)
{
struct ppp_option_data __user *odata;
__u32 data;
void __user *datap;
odata = compat_alloc_user_space(sizeof(*odata));
if (get_user(data, &odata32->ptr))
return -EFAULT;
datap = compat_ptr(data);
if (put_user(datap, &odata->ptr))
return -EFAULT;
if (copy_in_user(&odata->length, &odata32->length,
sizeof(__u32) + sizeof(int)))
return -EFAULT;
return do_ioctl(file, PPPIOCSCOMPRESS, (unsigned long) odata);
}
#ifdef CONFIG_BLOCK
struct mtget32 {
compat_long_t mt_type;
compat_long_t mt_resid;
compat_long_t mt_dsreg;
compat_long_t mt_gstat;
compat_long_t mt_erreg;
compat_daddr_t mt_fileno;
compat_daddr_t mt_blkno;
};
#define MTIOCGET32 _IOR('m', 2, struct mtget32)
struct mtpos32 {
compat_long_t mt_blkno;
};
#define MTIOCPOS32 _IOR('m', 3, struct mtpos32)
static int mt_ioctl_trans(struct file *file,
unsigned int cmd, void __user *argp)
{
/* NULL initialization to make gcc shut up */
struct mtget __user *get = NULL;
struct mtget32 __user *umget32;
struct mtpos __user *pos = NULL;
struct mtpos32 __user *upos32;
unsigned long kcmd;
void *karg;
int err = 0;
switch(cmd) {
case MTIOCPOS32:
kcmd = MTIOCPOS;
pos = compat_alloc_user_space(sizeof(*pos));
karg = pos;
break;
default: /* MTIOCGET32 */
kcmd = MTIOCGET;
get = compat_alloc_user_space(sizeof(*get));
karg = get;
break;
}
if (karg == NULL)
return -EFAULT;
err = do_ioctl(file, kcmd, (unsigned long)karg);
if (err)
return err;
switch (cmd) {
case MTIOCPOS32:
upos32 = argp;
err = convert_in_user(&pos->mt_blkno, &upos32->mt_blkno);
break;
case MTIOCGET32:
umget32 = argp;
err = convert_in_user(&get->mt_type, &umget32->mt_type);
err |= convert_in_user(&get->mt_resid, &umget32->mt_resid);
err |= convert_in_user(&get->mt_dsreg, &umget32->mt_dsreg);
err |= convert_in_user(&get->mt_gstat, &umget32->mt_gstat);
err |= convert_in_user(&get->mt_erreg, &umget32->mt_erreg);
err |= convert_in_user(&get->mt_fileno, &umget32->mt_fileno);
err |= convert_in_user(&get->mt_blkno, &umget32->mt_blkno);
break;
}
return err ? -EFAULT: 0;
}
#endif /* CONFIG_BLOCK */
/* Bluetooth ioctls */
#define HCIUARTSETPROTO _IOW('U', 200, int)
#define HCIUARTGETPROTO _IOR('U', 201, int)
#define HCIUARTGETDEVICE _IOR('U', 202, int)
#define HCIUARTSETFLAGS _IOW('U', 203, int)
#define HCIUARTGETFLAGS _IOR('U', 204, 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 BNEPGETSUPPFEAT _IOR('B', 212, 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 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(struct file *file,
unsigned cmd, struct serial_struct32 __user *ss32)
{
typedef struct serial_struct32 SS32;
int err;
struct serial_struct __user *ss = compat_alloc_user_space(sizeof(*ss));
__u32 udata;
unsigned int base;
unsigned char *iomem_base;
if (ss == NULL)
return -EFAULT;
if (cmd == TIOCSSERIAL) {
if (copy_in_user(ss, ss32, offsetof(SS32, iomem_base)) ||
get_user(udata, &ss32->iomem_base))
return -EFAULT;
iomem_base = compat_ptr(udata);
if (put_user(iomem_base, &ss->iomem_base) ||
convert_in_user(&ss32->iomem_reg_shift,
&ss->iomem_reg_shift) ||
convert_in_user(&ss32->port_high, &ss->port_high) ||
put_user(0UL, &ss->iomap_base))
return -EFAULT;
}
err = do_ioctl(file, cmd, (unsigned long)ss);
if (cmd == TIOCGSERIAL && err >= 0) {
if (copy_in_user(ss32, ss, offsetof(SS32, iomem_base)) ||
get_user(iomem_base, &ss->iomem_base))
return -EFAULT;
base = (unsigned long)iomem_base >> 32 ?
0xffffffff : (unsigned)(unsigned long)iomem_base;
if (put_user(base, &ss32->iomem_base) ||
convert_in_user(&ss->iomem_reg_shift,
&ss32->iomem_reg_shift) ||
convert_in_user(&ss->port_high, &ss32->port_high))
return -EFAULT;
}
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(struct file *file,
unsigned int cmd, struct i2c_rdwr_ioctl_data32 __user *udata)
{
struct i2c_rdwr_aligned __user *tdata;
struct i2c_msg __user *tmsgs;
struct i2c_msg32 __user *umsgs;
compat_caddr_t datap;
u32 nmsgs;
int i;
if (get_user(nmsgs, &udata->nmsgs))
return -EFAULT;
if (nmsgs > I2C_RDWR_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 do_ioctl(file, cmd, (unsigned long)tdata);
}
static int do_i2c_smbus_ioctl(struct file *file,
unsigned int cmd, struct i2c_smbus_ioctl_data32 __user *udata)
{
struct i2c_smbus_ioctl_data __user *tdata;
compat_caddr_t datap;
tdata = compat_alloc_user_space(sizeof(*tdata));
if (tdata == NULL)
return -ENOMEM;
if (!access_ok(VERIFY_WRITE, tdata, sizeof(*tdata)))
return -EFAULT;
if (!access_ok(VERIFY_READ, udata, sizeof(*udata)))
return -EFAULT;
if (__copy_in_user(&tdata->read_write, &udata->read_write, 2 * sizeof(u8)))
return -EFAULT;
if (__copy_in_user(&tdata->size, &udata->size, 2 * sizeof(u32)))
return -EFAULT;
if (__get_user(datap, &udata->data) ||
__put_user(compat_ptr(datap), &tdata->data))
return -EFAULT;
return do_ioctl(file, cmd, (unsigned long)tdata);
}
#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(struct file *file,
unsigned cmd, void __user *argp)
{
unsigned long __user *valp = compat_alloc_user_space(sizeof(*valp));
int ret;
if (valp == NULL)
return -EFAULT;
switch (cmd) {
case RTC_IRQP_READ32:
case RTC_EPOCH_READ32:
ret = do_ioctl(file, (cmd == RTC_IRQP_READ32) ?
RTC_IRQP_READ : RTC_EPOCH_READ,
(unsigned long)valp);
if (ret)
return ret;
return convert_in_user(valp, (unsigned int __user *)argp);
case RTC_IRQP_SET32:
return do_ioctl(file, RTC_IRQP_SET, (unsigned long)argp);
case RTC_EPOCH_SET32:
return do_ioctl(file, RTC_EPOCH_SET, (unsigned long)argp);
}
return -ENOIOCTLCMD;
}
/* on ia32 l_start is on a 32-bit boundary */
#if defined(CONFIG_IA64) || defined(CONFIG_X86_64)
struct space_resv_32 {
__s16 l_type;
__s16 l_whence;
__s64 l_start __attribute__((packed));
/* len == 0 means until end of file */
__s64 l_len __attribute__((packed));
__s32 l_sysid;
__u32 l_pid;
__s32 l_pad[4]; /* reserve area */
};
#define FS_IOC_RESVSP_32 _IOW ('X', 40, struct space_resv_32)
#define FS_IOC_RESVSP64_32 _IOW ('X', 42, struct space_resv_32)
/* just account for different alignment */
static int compat_ioctl_preallocate(struct file *file,
struct space_resv_32 __user *p32)
{
struct space_resv __user *p = compat_alloc_user_space(sizeof(*p));
if (copy_in_user(&p->l_type, &p32->l_type, sizeof(s16)) ||
copy_in_user(&p->l_whence, &p32->l_whence, sizeof(s16)) ||
copy_in_user(&p->l_start, &p32->l_start, sizeof(s64)) ||
copy_in_user(&p->l_len, &p32->l_len, sizeof(s64)) ||
copy_in_user(&p->l_sysid, &p32->l_sysid, sizeof(s32)) ||
copy_in_user(&p->l_pid, &p32->l_pid, sizeof(u32)) ||
copy_in_user(&p->l_pad, &p32->l_pad, 4*sizeof(u32)))
return -EFAULT;
return ioctl_preallocate(file, p);
}
#endif
/*
* simple reversible transform to make our table more evenly
* distributed after sorting.
*/
#define XFORM(i) (((i) ^ ((i) << 27) ^ ((i) << 17)) & 0xffffffff)
#define COMPATIBLE_IOCTL(cmd) XFORM(cmd),
/* ioctl should not be warned about even if it's not implemented.
Valid reasons to use this:
- It is implemented with ->compat_ioctl on some device, but programs
call it on others too.
- The ioctl is not implemented in the native kernel, but programs
call it commonly anyways.
Most other reasons are not valid. */
#define IGNORE_IOCTL(cmd) COMPATIBLE_IOCTL(cmd)
static unsigned int ioctl_pointer[] = {
/* compatible ioctls first */
COMPATIBLE_IOCTL(0x4B50) /* KDGHWCLK - not in the kernel, but don't complain */
COMPATIBLE_IOCTL(0x4B51) /* KDSHWCLK - not in the kernel, but don't complain */
/* Big T */
COMPATIBLE_IOCTL(TCGETA)
COMPATIBLE_IOCTL(TCSETA)
COMPATIBLE_IOCTL(TCSETAW)
COMPATIBLE_IOCTL(TCSETAF)
COMPATIBLE_IOCTL(TCSBRK)
COMPATIBLE_IOCTL(TCXONC)
COMPATIBLE_IOCTL(TCFLSH)
COMPATIBLE_IOCTL(TCGETS)
COMPATIBLE_IOCTL(TCSETS)
COMPATIBLE_IOCTL(TCSETSW)
COMPATIBLE_IOCTL(TCSETSF)
COMPATIBLE_IOCTL(TIOCLINUX)
COMPATIBLE_IOCTL(TIOCSBRK)
COMPATIBLE_IOCTL(TIOCGDEV)
COMPATIBLE_IOCTL(TIOCCBRK)
COMPATIBLE_IOCTL(TIOCGSID)
COMPATIBLE_IOCTL(TIOCGICOUNT)
COMPATIBLE_IOCTL(TIOCGPKT)
COMPATIBLE_IOCTL(TIOCGPTLCK)
COMPATIBLE_IOCTL(TIOCGEXCL)
/* Little t */
COMPATIBLE_IOCTL(TIOCGETD)
COMPATIBLE_IOCTL(TIOCSETD)
COMPATIBLE_IOCTL(TIOCEXCL)
COMPATIBLE_IOCTL(TIOCNXCL)
COMPATIBLE_IOCTL(TIOCCONS)
COMPATIBLE_IOCTL(TIOCGSOFTCAR)
COMPATIBLE_IOCTL(TIOCSSOFTCAR)
COMPATIBLE_IOCTL(TIOCSWINSZ)
COMPATIBLE_IOCTL(TIOCGWINSZ)
COMPATIBLE_IOCTL(TIOCMGET)
COMPATIBLE_IOCTL(TIOCMBIC)
COMPATIBLE_IOCTL(TIOCMBIS)
COMPATIBLE_IOCTL(TIOCMSET)
COMPATIBLE_IOCTL(TIOCPKT)
COMPATIBLE_IOCTL(TIOCNOTTY)
COMPATIBLE_IOCTL(TIOCSTI)
COMPATIBLE_IOCTL(TIOCOUTQ)
COMPATIBLE_IOCTL(TIOCSPGRP)
COMPATIBLE_IOCTL(TIOCGPGRP)
COMPATIBLE_IOCTL(TIOCGPTN)
COMPATIBLE_IOCTL(TIOCSPTLCK)
COMPATIBLE_IOCTL(TIOCSERGETLSR)
COMPATIBLE_IOCTL(TIOCSIG)
#ifdef TIOCSRS485
COMPATIBLE_IOCTL(TIOCSRS485)
#endif
#ifdef TIOCGRS485
COMPATIBLE_IOCTL(TIOCGRS485)
#endif
#ifdef TCGETS2
COMPATIBLE_IOCTL(TCGETS2)
COMPATIBLE_IOCTL(TCSETS2)
COMPATIBLE_IOCTL(TCSETSW2)
COMPATIBLE_IOCTL(TCSETSF2)
#endif
/* Little f */
COMPATIBLE_IOCTL(FIOCLEX)
COMPATIBLE_IOCTL(FIONCLEX)
COMPATIBLE_IOCTL(FIOASYNC)
COMPATIBLE_IOCTL(FIONBIO)
COMPATIBLE_IOCTL(FIONREAD) /* This is also TIOCINQ */
COMPATIBLE_IOCTL(FS_IOC_FIEMAP)
/* 0x00 */
COMPATIBLE_IOCTL(FIBMAP)
COMPATIBLE_IOCTL(FIGETBSZ)
/* 'X' - originally XFS but some now in the VFS */
COMPATIBLE_IOCTL(FIFREEZE)
COMPATIBLE_IOCTL(FITHAW)
COMPATIBLE_IOCTL(FITRIM)
COMPATIBLE_IOCTL(KDGETKEYCODE)
COMPATIBLE_IOCTL(KDSETKEYCODE)
COMPATIBLE_IOCTL(KDGKBTYPE)
COMPATIBLE_IOCTL(KDGETMODE)
COMPATIBLE_IOCTL(KDGKBMODE)
COMPATIBLE_IOCTL(KDGKBMETA)
COMPATIBLE_IOCTL(KDGKBENT)
COMPATIBLE_IOCTL(KDSKBENT)
COMPATIBLE_IOCTL(KDGKBSENT)
COMPATIBLE_IOCTL(KDSKBSENT)
COMPATIBLE_IOCTL(KDGKBDIACR)
COMPATIBLE_IOCTL(KDSKBDIACR)
COMPATIBLE_IOCTL(KDGKBDIACRUC)
COMPATIBLE_IOCTL(KDSKBDIACRUC)
COMPATIBLE_IOCTL(KDKBDREP)
COMPATIBLE_IOCTL(KDGKBLED)
COMPATIBLE_IOCTL(KDGETLED)
#ifdef CONFIG_BLOCK
/* Big S */
COMPATIBLE_IOCTL(SCSI_IOCTL_GET_IDLUN)
COMPATIBLE_IOCTL(SCSI_IOCTL_DOORLOCK)
COMPATIBLE_IOCTL(SCSI_IOCTL_DOORUNLOCK)
COMPATIBLE_IOCTL(SCSI_IOCTL_TEST_UNIT_READY)
COMPATIBLE_IOCTL(SCSI_IOCTL_GET_BUS_NUMBER)
COMPATIBLE_IOCTL(SCSI_IOCTL_SEND_COMMAND)
COMPATIBLE_IOCTL(SCSI_IOCTL_PROBE_HOST)
COMPATIBLE_IOCTL(SCSI_IOCTL_GET_PCI)
#endif
/* Big V (don't complain on serial console) */
IGNORE_IOCTL(VT_OPENQRY)
IGNORE_IOCTL(VT_GETMODE)
/* Little p (/dev/rtc, /dev/envctrl, etc.) */
COMPATIBLE_IOCTL(RTC_AIE_ON)
COMPATIBLE_IOCTL(RTC_AIE_OFF)
COMPATIBLE_IOCTL(RTC_UIE_ON)
COMPATIBLE_IOCTL(RTC_UIE_OFF)
COMPATIBLE_IOCTL(RTC_PIE_ON)
COMPATIBLE_IOCTL(RTC_PIE_OFF)
COMPATIBLE_IOCTL(RTC_WIE_ON)
COMPATIBLE_IOCTL(RTC_WIE_OFF)
COMPATIBLE_IOCTL(RTC_ALM_SET)
COMPATIBLE_IOCTL(RTC_ALM_READ)
COMPATIBLE_IOCTL(RTC_RD_TIME)
COMPATIBLE_IOCTL(RTC_SET_TIME)
COMPATIBLE_IOCTL(RTC_WKALM_SET)
COMPATIBLE_IOCTL(RTC_WKALM_RD)
/*
* These two are only for the sbus rtc driver, but
* hwclock tries them on every rtc device first when
* running on sparc. On other architectures the entries
* are useless but harmless.
*/
COMPATIBLE_IOCTL(_IOR('p', 20, int[7])) /* RTCGET */
COMPATIBLE_IOCTL(_IOW('p', 21, int[7])) /* RTCSET */
/* Little m */
COMPATIBLE_IOCTL(MTIOCTOP)
/* Socket level stuff */
COMPATIBLE_IOCTL(FIOQSIZE)
#ifdef CONFIG_BLOCK
/* md calls this on random blockdevs */
IGNORE_IOCTL(RAID_VERSION)
/* qemu/qemu-img might call these two on plain files for probing */
IGNORE_IOCTL(CDROM_DRIVE_STATUS)
IGNORE_IOCTL(FDGETPRM32)
/* SG stuff */
COMPATIBLE_IOCTL(SG_SET_TIMEOUT)
COMPATIBLE_IOCTL(SG_GET_TIMEOUT)
COMPATIBLE_IOCTL(SG_EMULATED_HOST)
COMPATIBLE_IOCTL(SG_GET_TRANSFORM)
COMPATIBLE_IOCTL(SG_SET_RESERVED_SIZE)
COMPATIBLE_IOCTL(SG_GET_RESERVED_SIZE)
COMPATIBLE_IOCTL(SG_GET_SCSI_ID)
COMPATIBLE_IOCTL(SG_SET_FORCE_LOW_DMA)
COMPATIBLE_IOCTL(SG_GET_LOW_DMA)
COMPATIBLE_IOCTL(SG_SET_FORCE_PACK_ID)
COMPATIBLE_IOCTL(SG_GET_PACK_ID)
COMPATIBLE_IOCTL(SG_GET_NUM_WAITING)
COMPATIBLE_IOCTL(SG_SET_DEBUG)
COMPATIBLE_IOCTL(SG_GET_SG_TABLESIZE)
COMPATIBLE_IOCTL(SG_GET_COMMAND_Q)
COMPATIBLE_IOCTL(SG_SET_COMMAND_Q)
COMPATIBLE_IOCTL(SG_GET_VERSION_NUM)
COMPATIBLE_IOCTL(SG_NEXT_CMD_LEN)
COMPATIBLE_IOCTL(SG_SCSI_RESET)
COMPATIBLE_IOCTL(SG_GET_REQUEST_TABLE)
COMPATIBLE_IOCTL(SG_SET_KEEP_ORPHAN)
COMPATIBLE_IOCTL(SG_GET_KEEP_ORPHAN)
#endif
/* PPP stuff */
COMPATIBLE_IOCTL(PPPIOCGFLAGS)
COMPATIBLE_IOCTL(PPPIOCSFLAGS)
COMPATIBLE_IOCTL(PPPIOCGASYNCMAP)
COMPATIBLE_IOCTL(PPPIOCSASYNCMAP)
COMPATIBLE_IOCTL(PPPIOCGUNIT)
COMPATIBLE_IOCTL(PPPIOCGRASYNCMAP)
COMPATIBLE_IOCTL(PPPIOCSRASYNCMAP)
COMPATIBLE_IOCTL(PPPIOCGMRU)
COMPATIBLE_IOCTL(PPPIOCSMRU)
COMPATIBLE_IOCTL(PPPIOCSMAXCID)
COMPATIBLE_IOCTL(PPPIOCGXASYNCMAP)
COMPATIBLE_IOCTL(PPPIOCSXASYNCMAP)
COMPATIBLE_IOCTL(PPPIOCXFERUNIT)
/* PPPIOCSCOMPRESS is translated */
COMPATIBLE_IOCTL(PPPIOCGNPMODE)
COMPATIBLE_IOCTL(PPPIOCSNPMODE)
COMPATIBLE_IOCTL(PPPIOCGDEBUG)
COMPATIBLE_IOCTL(PPPIOCSDEBUG)
/* PPPIOCSPASS is translated */
/* PPPIOCSACTIVE is translated */
/* PPPIOCGIDLE is translated */
COMPATIBLE_IOCTL(PPPIOCNEWUNIT)
COMPATIBLE_IOCTL(PPPIOCATTACH)
COMPATIBLE_IOCTL(PPPIOCDETACH)
COMPATIBLE_IOCTL(PPPIOCSMRRU)
COMPATIBLE_IOCTL(PPPIOCCONNECT)
COMPATIBLE_IOCTL(PPPIOCDISCONN)
COMPATIBLE_IOCTL(PPPIOCATTCHAN)
COMPATIBLE_IOCTL(PPPIOCGCHAN)
COMPATIBLE_IOCTL(PPPIOCGL2TPSTATS)
/* PPPOX */
COMPATIBLE_IOCTL(PPPOEIOCSFWD)
COMPATIBLE_IOCTL(PPPOEIOCDFWD)
/* ppdev */
COMPATIBLE_IOCTL(PPSETMODE)
COMPATIBLE_IOCTL(PPRSTATUS)
COMPATIBLE_IOCTL(PPRCONTROL)
COMPATIBLE_IOCTL(PPWCONTROL)
COMPATIBLE_IOCTL(PPFCONTROL)
COMPATIBLE_IOCTL(PPRDATA)
COMPATIBLE_IOCTL(PPWDATA)
COMPATIBLE_IOCTL(PPCLAIM)
COMPATIBLE_IOCTL(PPRELEASE)
COMPATIBLE_IOCTL(PPYIELD)
COMPATIBLE_IOCTL(PPEXCL)
COMPATIBLE_IOCTL(PPDATADIR)
COMPATIBLE_IOCTL(PPNEGOT)
COMPATIBLE_IOCTL(PPWCTLONIRQ)
COMPATIBLE_IOCTL(PPCLRIRQ)
COMPATIBLE_IOCTL(PPSETPHASE)
COMPATIBLE_IOCTL(PPGETMODES)
COMPATIBLE_IOCTL(PPGETMODE)
COMPATIBLE_IOCTL(PPGETPHASE)
COMPATIBLE_IOCTL(PPGETFLAGS)
COMPATIBLE_IOCTL(PPSETFLAGS)
/* Big A */
/* sparc only */
/* Big Q for sound/OSS */
COMPATIBLE_IOCTL(SNDCTL_SEQ_RESET)
COMPATIBLE_IOCTL(SNDCTL_SEQ_SYNC)
COMPATIBLE_IOCTL(SNDCTL_SYNTH_INFO)
COMPATIBLE_IOCTL(SNDCTL_SEQ_CTRLRATE)
COMPATIBLE_IOCTL(SNDCTL_SEQ_GETOUTCOUNT)
COMPATIBLE_IOCTL(SNDCTL_SEQ_GETINCOUNT)
COMPATIBLE_IOCTL(SNDCTL_SEQ_PERCMODE)
COMPATIBLE_IOCTL(SNDCTL_FM_LOAD_INSTR)
COMPATIBLE_IOCTL(SNDCTL_SEQ_TESTMIDI)
COMPATIBLE_IOCTL(SNDCTL_SEQ_RESETSAMPLES)
COMPATIBLE_IOCTL(SNDCTL_SEQ_NRSYNTHS)
COMPATIBLE_IOCTL(SNDCTL_SEQ_NRMIDIS)
COMPATIBLE_IOCTL(SNDCTL_MIDI_INFO)
COMPATIBLE_IOCTL(SNDCTL_SEQ_THRESHOLD)
COMPATIBLE_IOCTL(SNDCTL_SYNTH_MEMAVL)
COMPATIBLE_IOCTL(SNDCTL_FM_4OP_ENABLE)
COMPATIBLE_IOCTL(SNDCTL_SEQ_PANIC)
COMPATIBLE_IOCTL(SNDCTL_SEQ_OUTOFBAND)
COMPATIBLE_IOCTL(SNDCTL_SEQ_GETTIME)
COMPATIBLE_IOCTL(SNDCTL_SYNTH_ID)
COMPATIBLE_IOCTL(SNDCTL_SYNTH_CONTROL)
COMPATIBLE_IOCTL(SNDCTL_SYNTH_REMOVESAMPLE)
/* Big T for sound/OSS */
COMPATIBLE_IOCTL(SNDCTL_TMR_TIMEBASE)
COMPATIBLE_IOCTL(SNDCTL_TMR_START)
COMPATIBLE_IOCTL(SNDCTL_TMR_STOP)
COMPATIBLE_IOCTL(SNDCTL_TMR_CONTINUE)
COMPATIBLE_IOCTL(SNDCTL_TMR_TEMPO)
COMPATIBLE_IOCTL(SNDCTL_TMR_SOURCE)
COMPATIBLE_IOCTL(SNDCTL_TMR_METRONOME)
COMPATIBLE_IOCTL(SNDCTL_TMR_SELECT)
/* Little m for sound/OSS */
COMPATIBLE_IOCTL(SNDCTL_MIDI_PRETIME)
COMPATIBLE_IOCTL(SNDCTL_MIDI_MPUMODE)
COMPATIBLE_IOCTL(SNDCTL_MIDI_MPUCMD)
/* Big P for sound/OSS */
COMPATIBLE_IOCTL(SNDCTL_DSP_RESET)
COMPATIBLE_IOCTL(SNDCTL_DSP_SYNC)
COMPATIBLE_IOCTL(SNDCTL_DSP_SPEED)
COMPATIBLE_IOCTL(SNDCTL_DSP_STEREO)
COMPATIBLE_IOCTL(SNDCTL_DSP_GETBLKSIZE)
COMPATIBLE_IOCTL(SNDCTL_DSP_CHANNELS)
COMPATIBLE_IOCTL(SOUND_PCM_WRITE_FILTER)
COMPATIBLE_IOCTL(SNDCTL_DSP_POST)
COMPATIBLE_IOCTL(SNDCTL_DSP_SUBDIVIDE)
COMPATIBLE_IOCTL(SNDCTL_DSP_SETFRAGMENT)
COMPATIBLE_IOCTL(SNDCTL_DSP_GETFMTS)
COMPATIBLE_IOCTL(SNDCTL_DSP_SETFMT)
COMPATIBLE_IOCTL(SNDCTL_DSP_GETOSPACE)
COMPATIBLE_IOCTL(SNDCTL_DSP_GETISPACE)
COMPATIBLE_IOCTL(SNDCTL_DSP_NONBLOCK)
COMPATIBLE_IOCTL(SNDCTL_DSP_GETCAPS)
COMPATIBLE_IOCTL(SNDCTL_DSP_GETTRIGGER)
COMPATIBLE_IOCTL(SNDCTL_DSP_SETTRIGGER)
COMPATIBLE_IOCTL(SNDCTL_DSP_GETIPTR)
COMPATIBLE_IOCTL(SNDCTL_DSP_GETOPTR)
/* SNDCTL_DSP_MAPINBUF, XXX needs translation */
/* SNDCTL_DSP_MAPOUTBUF, XXX needs translation */
COMPATIBLE_IOCTL(SNDCTL_DSP_SETSYNCRO)
COMPATIBLE_IOCTL(SNDCTL_DSP_SETDUPLEX)
COMPATIBLE_IOCTL(SNDCTL_DSP_GETODELAY)
COMPATIBLE_IOCTL(SNDCTL_DSP_PROFILE)
COMPATIBLE_IOCTL(SOUND_PCM_READ_RATE)
COMPATIBLE_IOCTL(SOUND_PCM_READ_CHANNELS)
COMPATIBLE_IOCTL(SOUND_PCM_READ_BITS)
COMPATIBLE_IOCTL(SOUND_PCM_READ_FILTER)
/* Big C for sound/OSS */
COMPATIBLE_IOCTL(SNDCTL_COPR_RESET)
COMPATIBLE_IOCTL(SNDCTL_COPR_LOAD)
COMPATIBLE_IOCTL(SNDCTL_COPR_RDATA)
COMPATIBLE_IOCTL(SNDCTL_COPR_RCODE)
COMPATIBLE_IOCTL(SNDCTL_COPR_WDATA)
COMPATIBLE_IOCTL(SNDCTL_COPR_WCODE)
COMPATIBLE_IOCTL(SNDCTL_COPR_RUN)
COMPATIBLE_IOCTL(SNDCTL_COPR_HALT)
COMPATIBLE_IOCTL(SNDCTL_COPR_SENDMSG)
COMPATIBLE_IOCTL(SNDCTL_COPR_RCVMSG)
/* Big M for sound/OSS */
COMPATIBLE_IOCTL(SOUND_MIXER_READ_VOLUME)
COMPATIBLE_IOCTL(SOUND_MIXER_READ_BASS)
COMPATIBLE_IOCTL(SOUND_MIXER_READ_TREBLE)
COMPATIBLE_IOCTL(SOUND_MIXER_READ_SYNTH)
COMPATIBLE_IOCTL(SOUND_MIXER_READ_PCM)
COMPATIBLE_IOCTL(SOUND_MIXER_READ_SPEAKER)
COMPATIBLE_IOCTL(SOUND_MIXER_READ_LINE)
COMPATIBLE_IOCTL(SOUND_MIXER_READ_MIC)
COMPATIBLE_IOCTL(SOUND_MIXER_READ_CD)
COMPATIBLE_IOCTL(SOUND_MIXER_READ_IMIX)
COMPATIBLE_IOCTL(SOUND_MIXER_READ_ALTPCM)
COMPATIBLE_IOCTL(SOUND_MIXER_READ_RECLEV)
COMPATIBLE_IOCTL(SOUND_MIXER_READ_IGAIN)
COMPATIBLE_IOCTL(SOUND_MIXER_READ_OGAIN)
COMPATIBLE_IOCTL(SOUND_MIXER_READ_LINE1)
COMPATIBLE_IOCTL(SOUND_MIXER_READ_LINE2)
COMPATIBLE_IOCTL(SOUND_MIXER_READ_LINE3)
COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_DIGITAL1))
COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_DIGITAL2))
COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_DIGITAL3))
COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_PHONEIN))
COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_PHONEOUT))
COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_VIDEO))
COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_RADIO))
COMPATIBLE_IOCTL(MIXER_READ(SOUND_MIXER_MONITOR))
COMPATIBLE_IOCTL(SOUND_MIXER_READ_MUTE)
/* SOUND_MIXER_READ_ENHANCE, same value as READ_MUTE */
/* SOUND_MIXER_READ_LOUD, same value as READ_MUTE */
COMPATIBLE_IOCTL(SOUND_MIXER_READ_RECSRC)
COMPATIBLE_IOCTL(SOUND_MIXER_READ_DEVMASK)
COMPATIBLE_IOCTL(SOUND_MIXER_READ_RECMASK)
COMPATIBLE_IOCTL(SOUND_MIXER_READ_STEREODEVS)
COMPATIBLE_IOCTL(SOUND_MIXER_READ_CAPS)
COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_VOLUME)
COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_BASS)
COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_TREBLE)
COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_SYNTH)
COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_PCM)
COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_SPEAKER)
COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_LINE)
COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_MIC)
COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_CD)
COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_IMIX)
COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_ALTPCM)
COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_RECLEV)
COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_IGAIN)
COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_OGAIN)
COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_LINE1)
COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_LINE2)
COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_LINE3)
COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_DIGITAL1))
COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_DIGITAL2))
COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_DIGITAL3))
COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_PHONEIN))
COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_PHONEOUT))
COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_VIDEO))
COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_RADIO))
COMPATIBLE_IOCTL(MIXER_WRITE(SOUND_MIXER_MONITOR))
COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_MUTE)
/* SOUND_MIXER_WRITE_ENHANCE, same value as WRITE_MUTE */
/* SOUND_MIXER_WRITE_LOUD, same value as WRITE_MUTE */
COMPATIBLE_IOCTL(SOUND_MIXER_WRITE_RECSRC)
COMPATIBLE_IOCTL(SOUND_MIXER_INFO)
COMPATIBLE_IOCTL(SOUND_OLD_MIXER_INFO)
COMPATIBLE_IOCTL(SOUND_MIXER_ACCESS)
COMPATIBLE_IOCTL(SOUND_MIXER_AGC)
COMPATIBLE_IOCTL(SOUND_MIXER_3DSE)
COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE1)
COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE2)
COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE3)
COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE4)
COMPATIBLE_IOCTL(SOUND_MIXER_PRIVATE5)
COMPATIBLE_IOCTL(SOUND_MIXER_GETLEVELS)
COMPATIBLE_IOCTL(SOUND_MIXER_SETLEVELS)
COMPATIBLE_IOCTL(OSS_GETVERSION)
/* Raw devices */
COMPATIBLE_IOCTL(RAW_SETBIND)
COMPATIBLE_IOCTL(RAW_GETBIND)
/* Watchdog */
COMPATIBLE_IOCTL(WDIOC_GETSUPPORT)
COMPATIBLE_IOCTL(WDIOC_GETSTATUS)
COMPATIBLE_IOCTL(WDIOC_GETBOOTSTATUS)
COMPATIBLE_IOCTL(WDIOC_GETTEMP)
COMPATIBLE_IOCTL(WDIOC_SETOPTIONS)
COMPATIBLE_IOCTL(WDIOC_KEEPALIVE)
COMPATIBLE_IOCTL(WDIOC_SETTIMEOUT)
COMPATIBLE_IOCTL(WDIOC_GETTIMEOUT)
/* Big R */
COMPATIBLE_IOCTL(RNDGETENTCNT)
COMPATIBLE_IOCTL(RNDADDTOENTCNT)
COMPATIBLE_IOCTL(RNDGETPOOL)
COMPATIBLE_IOCTL(RNDADDENTROPY)
COMPATIBLE_IOCTL(RNDZAPENTCNT)
COMPATIBLE_IOCTL(RNDCLEARPOOL)
/* Bluetooth */
COMPATIBLE_IOCTL(HCIDEVUP)
COMPATIBLE_IOCTL(HCIDEVDOWN)
COMPATIBLE_IOCTL(HCIDEVRESET)
COMPATIBLE_IOCTL(HCIDEVRESTAT)
COMPATIBLE_IOCTL(HCIGETDEVLIST)
COMPATIBLE_IOCTL(HCIGETDEVINFO)
COMPATIBLE_IOCTL(HCIGETCONNLIST)
COMPATIBLE_IOCTL(HCIGETCONNINFO)
COMPATIBLE_IOCTL(HCIGETAUTHINFO)
COMPATIBLE_IOCTL(HCISETRAW)
COMPATIBLE_IOCTL(HCISETSCAN)
COMPATIBLE_IOCTL(HCISETAUTH)
COMPATIBLE_IOCTL(HCISETENCRYPT)
COMPATIBLE_IOCTL(HCISETPTYPE)
COMPATIBLE_IOCTL(HCISETLINKPOL)
COMPATIBLE_IOCTL(HCISETLINKMODE)
COMPATIBLE_IOCTL(HCISETACLMTU)
COMPATIBLE_IOCTL(HCISETSCOMTU)
COMPATIBLE_IOCTL(HCIBLOCKADDR)
COMPATIBLE_IOCTL(HCIUNBLOCKADDR)
COMPATIBLE_IOCTL(HCIINQUIRY)
COMPATIBLE_IOCTL(HCIUARTSETPROTO)
COMPATIBLE_IOCTL(HCIUARTGETPROTO)
COMPATIBLE_IOCTL(RFCOMMCREATEDEV)
COMPATIBLE_IOCTL(RFCOMMRELEASEDEV)
COMPATIBLE_IOCTL(RFCOMMGETDEVLIST)
COMPATIBLE_IOCTL(RFCOMMGETDEVINFO)
COMPATIBLE_IOCTL(RFCOMMSTEALDLC)
COMPATIBLE_IOCTL(BNEPCONNADD)
COMPATIBLE_IOCTL(BNEPCONNDEL)
COMPATIBLE_IOCTL(BNEPGETCONNLIST)
COMPATIBLE_IOCTL(BNEPGETCONNINFO)
COMPATIBLE_IOCTL(BNEPGETSUPPFEAT)
COMPATIBLE_IOCTL(CMTPCONNADD)
COMPATIBLE_IOCTL(CMTPCONNDEL)
COMPATIBLE_IOCTL(CMTPGETCONNLIST)
COMPATIBLE_IOCTL(CMTPGETCONNINFO)
COMPATIBLE_IOCTL(HIDPCONNADD)
COMPATIBLE_IOCTL(HIDPCONNDEL)
COMPATIBLE_IOCTL(HIDPGETCONNLIST)
COMPATIBLE_IOCTL(HIDPGETCONNINFO)
/* CAPI */
COMPATIBLE_IOCTL(CAPI_REGISTER)
COMPATIBLE_IOCTL(CAPI_GET_MANUFACTURER)
COMPATIBLE_IOCTL(CAPI_GET_VERSION)
COMPATIBLE_IOCTL(CAPI_GET_SERIAL)
COMPATIBLE_IOCTL(CAPI_GET_PROFILE)
COMPATIBLE_IOCTL(CAPI_MANUFACTURER_CMD)
COMPATIBLE_IOCTL(CAPI_GET_ERRCODE)
COMPATIBLE_IOCTL(CAPI_INSTALLED)
COMPATIBLE_IOCTL(CAPI_GET_FLAGS)
COMPATIBLE_IOCTL(CAPI_SET_FLAGS)
COMPATIBLE_IOCTL(CAPI_CLR_FLAGS)
COMPATIBLE_IOCTL(CAPI_NCCI_OPENCOUNT)
COMPATIBLE_IOCTL(CAPI_NCCI_GETUNIT)
/* Siemens Gigaset */
COMPATIBLE_IOCTL(GIGASET_REDIR)
COMPATIBLE_IOCTL(GIGASET_CONFIG)
COMPATIBLE_IOCTL(GIGASET_BRKCHARS)
COMPATIBLE_IOCTL(GIGASET_VERSION)
/* Misc. */
COMPATIBLE_IOCTL(0x41545900) /* ATYIO_CLKR */
COMPATIBLE_IOCTL(0x41545901) /* ATYIO_CLKW */
COMPATIBLE_IOCTL(PCIIOC_CONTROLLER)
COMPATIBLE_IOCTL(PCIIOC_MMAP_IS_IO)
COMPATIBLE_IOCTL(PCIIOC_MMAP_IS_MEM)
COMPATIBLE_IOCTL(PCIIOC_WRITE_COMBINE)
/* i2c */
COMPATIBLE_IOCTL(I2C_SLAVE)
COMPATIBLE_IOCTL(I2C_SLAVE_FORCE)
COMPATIBLE_IOCTL(I2C_TENBIT)
COMPATIBLE_IOCTL(I2C_PEC)
COMPATIBLE_IOCTL(I2C_RETRIES)
COMPATIBLE_IOCTL(I2C_TIMEOUT)
/* hiddev */
COMPATIBLE_IOCTL(HIDIOCGVERSION)
COMPATIBLE_IOCTL(HIDIOCAPPLICATION)
COMPATIBLE_IOCTL(HIDIOCGDEVINFO)
COMPATIBLE_IOCTL(HIDIOCGSTRING)
COMPATIBLE_IOCTL(HIDIOCINITREPORT)
COMPATIBLE_IOCTL(HIDIOCGREPORT)
COMPATIBLE_IOCTL(HIDIOCSREPORT)
COMPATIBLE_IOCTL(HIDIOCGREPORTINFO)
COMPATIBLE_IOCTL(HIDIOCGFIELDINFO)
COMPATIBLE_IOCTL(HIDIOCGUSAGE)
COMPATIBLE_IOCTL(HIDIOCSUSAGE)
COMPATIBLE_IOCTL(HIDIOCGUCODE)
COMPATIBLE_IOCTL(HIDIOCGFLAG)
COMPATIBLE_IOCTL(HIDIOCSFLAG)
COMPATIBLE_IOCTL(HIDIOCGCOLLECTIONINDEX)
COMPATIBLE_IOCTL(HIDIOCGCOLLECTIONINFO)
/* dvb */
COMPATIBLE_IOCTL(AUDIO_STOP)
COMPATIBLE_IOCTL(AUDIO_PLAY)
COMPATIBLE_IOCTL(AUDIO_PAUSE)
COMPATIBLE_IOCTL(AUDIO_CONTINUE)
COMPATIBLE_IOCTL(AUDIO_SELECT_SOURCE)
COMPATIBLE_IOCTL(AUDIO_SET_MUTE)
COMPATIBLE_IOCTL(AUDIO_SET_AV_SYNC)
COMPATIBLE_IOCTL(AUDIO_SET_BYPASS_MODE)
COMPATIBLE_IOCTL(AUDIO_CHANNEL_SELECT)
COMPATIBLE_IOCTL(AUDIO_GET_STATUS)
COMPATIBLE_IOCTL(AUDIO_GET_CAPABILITIES)
COMPATIBLE_IOCTL(AUDIO_CLEAR_BUFFER)
COMPATIBLE_IOCTL(AUDIO_SET_ID)
COMPATIBLE_IOCTL(AUDIO_SET_MIXER)
COMPATIBLE_IOCTL(AUDIO_SET_STREAMTYPE)
COMPATIBLE_IOCTL(AUDIO_SET_EXT_ID)
COMPATIBLE_IOCTL(AUDIO_SET_ATTRIBUTES)
COMPATIBLE_IOCTL(AUDIO_SET_KARAOKE)
COMPATIBLE_IOCTL(DMX_START)
COMPATIBLE_IOCTL(DMX_STOP)
COMPATIBLE_IOCTL(DMX_SET_FILTER)
COMPATIBLE_IOCTL(DMX_SET_PES_FILTER)
COMPATIBLE_IOCTL(DMX_SET_BUFFER_SIZE)
COMPATIBLE_IOCTL(DMX_GET_PES_PIDS)
COMPATIBLE_IOCTL(DMX_GET_CAPS)
COMPATIBLE_IOCTL(DMX_SET_SOURCE)
COMPATIBLE_IOCTL(DMX_GET_STC)
COMPATIBLE_IOCTL(FE_GET_INFO)
COMPATIBLE_IOCTL(FE_DISEQC_RESET_OVERLOAD)
COMPATIBLE_IOCTL(FE_DISEQC_SEND_MASTER_CMD)
COMPATIBLE_IOCTL(FE_DISEQC_RECV_SLAVE_REPLY)
COMPATIBLE_IOCTL(FE_DISEQC_SEND_BURST)
COMPATIBLE_IOCTL(FE_SET_TONE)
COMPATIBLE_IOCTL(FE_SET_VOLTAGE)
COMPATIBLE_IOCTL(FE_ENABLE_HIGH_LNB_VOLTAGE)
COMPATIBLE_IOCTL(FE_READ_STATUS)
COMPATIBLE_IOCTL(FE_READ_BER)
COMPATIBLE_IOCTL(FE_READ_SIGNAL_STRENGTH)
COMPATIBLE_IOCTL(FE_READ_SNR)
COMPATIBLE_IOCTL(FE_READ_UNCORRECTED_BLOCKS)
COMPATIBLE_IOCTL(FE_SET_FRONTEND)
COMPATIBLE_IOCTL(FE_GET_FRONTEND)
COMPATIBLE_IOCTL(FE_GET_EVENT)
COMPATIBLE_IOCTL(FE_DISHNETWORK_SEND_LEGACY_CMD)
COMPATIBLE_IOCTL(VIDEO_STOP)
COMPATIBLE_IOCTL(VIDEO_PLAY)
COMPATIBLE_IOCTL(VIDEO_FREEZE)
COMPATIBLE_IOCTL(VIDEO_CONTINUE)
COMPATIBLE_IOCTL(VIDEO_SELECT_SOURCE)
COMPATIBLE_IOCTL(VIDEO_SET_BLANK)
COMPATIBLE_IOCTL(VIDEO_GET_STATUS)
COMPATIBLE_IOCTL(VIDEO_SET_DISPLAY_FORMAT)
COMPATIBLE_IOCTL(VIDEO_FAST_FORWARD)
COMPATIBLE_IOCTL(VIDEO_SLOWMOTION)
COMPATIBLE_IOCTL(VIDEO_GET_CAPABILITIES)
COMPATIBLE_IOCTL(VIDEO_CLEAR_BUFFER)
COMPATIBLE_IOCTL(VIDEO_SET_ID)
COMPATIBLE_IOCTL(VIDEO_SET_STREAMTYPE)
COMPATIBLE_IOCTL(VIDEO_SET_FORMAT)
COMPATIBLE_IOCTL(VIDEO_SET_SYSTEM)
COMPATIBLE_IOCTL(VIDEO_SET_HIGHLIGHT)
COMPATIBLE_IOCTL(VIDEO_SET_SPU)
COMPATIBLE_IOCTL(VIDEO_GET_NAVI)
COMPATIBLE_IOCTL(VIDEO_SET_ATTRIBUTES)
COMPATIBLE_IOCTL(VIDEO_GET_SIZE)
COMPATIBLE_IOCTL(VIDEO_GET_FRAME_RATE)
/* joystick */
COMPATIBLE_IOCTL(JSIOCGVERSION)
COMPATIBLE_IOCTL(JSIOCGAXES)
COMPATIBLE_IOCTL(JSIOCGBUTTONS)
COMPATIBLE_IOCTL(JSIOCGNAME(0))
#ifdef TIOCGLTC
COMPATIBLE_IOCTL(TIOCGLTC)
COMPATIBLE_IOCTL(TIOCSLTC)
#endif
#ifdef TIOCSTART
/*
* For these two we have definitions 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
/* fat 'r' ioctls. These are handled by fat with ->compat_ioctl,
but we don't want warnings on other file systems. So declare
them as compatible here. */
#define VFAT_IOCTL_READDIR_BOTH32 _IOR('r', 1, struct compat_dirent[2])
#define VFAT_IOCTL_READDIR_SHORT32 _IOR('r', 2, struct compat_dirent[2])
IGNORE_IOCTL(VFAT_IOCTL_READDIR_BOTH32)
IGNORE_IOCTL(VFAT_IOCTL_READDIR_SHORT32)
#ifdef CONFIG_SPARC
/* Sparc framebuffers, handled in sbusfb_compat_ioctl() */
IGNORE_IOCTL(FBIOGTYPE)
IGNORE_IOCTL(FBIOSATTR)
IGNORE_IOCTL(FBIOGATTR)
IGNORE_IOCTL(FBIOSVIDEO)
IGNORE_IOCTL(FBIOGVIDEO)
IGNORE_IOCTL(FBIOSCURPOS)
IGNORE_IOCTL(FBIOGCURPOS)
IGNORE_IOCTL(FBIOGCURMAX)
IGNORE_IOCTL(FBIOPUTCMAP32)
IGNORE_IOCTL(FBIOGETCMAP32)
IGNORE_IOCTL(FBIOSCURSOR32)
IGNORE_IOCTL(FBIOGCURSOR32)
#endif
};
/*
* Convert common ioctl arguments based on their command number
*
* Please do not add any code in here. Instead, implement
* a compat_ioctl operation in the place that handleѕ the
* ioctl for the native case.
*/
static long do_ioctl_trans(unsigned int cmd,
unsigned long arg, struct file *file)
{
void __user *argp = compat_ptr(arg);
switch (cmd) {
case PPPIOCGIDLE32:
return ppp_gidle(file, cmd, argp);
case PPPIOCSCOMPRESS32:
return ppp_scompress(file, cmd, argp);
case PPPIOCSPASS32:
case PPPIOCSACTIVE32:
return ppp_sock_fprog_ioctl_trans(file, cmd, argp);
#ifdef CONFIG_BLOCK
case SG_IO:
return sg_ioctl_trans(file, cmd, argp);
case SG_GET_REQUEST_TABLE:
return sg_grt_trans(file, cmd, argp);
case MTIOCGET32:
case MTIOCPOS32:
return mt_ioctl_trans(file, cmd, argp);
#endif
/* Serial */
case TIOCGSERIAL:
case TIOCSSERIAL:
return serial_struct_ioctl(file, cmd, argp);
/* i2c */
case I2C_FUNCS:
return w_long(file, cmd, argp);
case I2C_RDWR:
return do_i2c_rdwr_ioctl(file, cmd, argp);
case I2C_SMBUS:
return do_i2c_smbus_ioctl(file, cmd, argp);
/* Not implemented in the native kernel */
case RTC_IRQP_READ32:
case RTC_IRQP_SET32:
case RTC_EPOCH_READ32:
case RTC_EPOCH_SET32:
return rtc_ioctl(file, cmd, argp);
/* dvb */
case VIDEO_GET_EVENT:
return do_video_get_event(file, cmd, argp);
case VIDEO_STILLPICTURE:
return do_video_stillpicture(file, cmd, argp);
case VIDEO_SET_SPU_PALETTE:
return do_video_set_spu_palette(file, cmd, argp);
}
/*
* These take an integer instead of a pointer as 'arg',
* so we must not do a compat_ptr() translation.
*/
switch (cmd) {
/* Big T */
case TCSBRKP:
case TIOCMIWAIT:
case TIOCSCTTY:
/* RAID */
case HOT_REMOVE_DISK:
case HOT_ADD_DISK:
case SET_DISK_FAULTY:
case SET_BITMAP_FILE:
/* Big K */
case KDSIGACCEPT:
case KIOCSOUND:
case KDMKTONE:
case KDSETMODE:
case KDSKBMODE:
case KDSKBMETA:
case KDSKBLED:
case KDSETLED:
return vfs_ioctl(file, cmd, arg);
}
return -ENOIOCTLCMD;
}
static int compat_ioctl_check_table(unsigned int xcmd)
{
int i;
const int max = ARRAY_SIZE(ioctl_pointer) - 1;
BUILD_BUG_ON(max >= (1 << 16));
/* guess initial offset into table, assuming a
normalized distribution */
i = ((xcmd >> 16) * max) >> 16;
/* do linear search up first, until greater or equal */
while (ioctl_pointer[i] < xcmd && i < max)
i++;
/* then do linear search down */
while (ioctl_pointer[i] > xcmd && i > 0)
i--;
return ioctl_pointer[i] == xcmd;
}
COMPAT_SYSCALL_DEFINE3(ioctl, unsigned int, fd, unsigned int, cmd,
compat_ulong_t, arg32)
{
unsigned long arg = arg32;
struct fd f = fdget(fd);
int error = -EBADF;
if (!f.file)
goto out;
/* RED-PEN how should LSM module know it's handling 32bit? */
error = security_file_ioctl(f.file, cmd, arg);
if (error)
goto out_fput;
/*
* To allow the compat_ioctl handlers to be self contained
* we need to check the common ioctls here first.
* Just handle them with the standard handlers below.
*/
switch (cmd) {
case FIOCLEX:
case FIONCLEX:
case FIONBIO:
case FIOASYNC:
case FIOQSIZE:
break;
#if defined(CONFIG_IA64) || defined(CONFIG_X86_64)
case FS_IOC_RESVSP_32:
case FS_IOC_RESVSP64_32:
error = compat_ioctl_preallocate(f.file, compat_ptr(arg));
goto out_fput;
#else
case FS_IOC_RESVSP:
case FS_IOC_RESVSP64:
error = ioctl_preallocate(f.file, compat_ptr(arg));
goto out_fput;
#endif
case FICLONE:
case FICLONERANGE:
case FIDEDUPERANGE:
goto do_ioctl;
case FIBMAP:
case FIGETBSZ:
case FIONREAD:
if (S_ISREG(file_inode(f.file)->i_mode))
break;
/*FALL THROUGH*/
default:
if (f.file->f_op->compat_ioctl) {
error = f.file->f_op->compat_ioctl(f.file, cmd, arg);
if (error != -ENOIOCTLCMD)
goto out_fput;
}
if (!f.file->f_op->unlocked_ioctl)
goto do_ioctl;
break;
}
if (compat_ioctl_check_table(XFORM(cmd)))
goto found_handler;
error = do_ioctl_trans(cmd, arg, f.file);
if (error == -ENOIOCTLCMD)
error = -ENOTTY;
goto out_fput;
found_handler:
arg = (unsigned long)compat_ptr(arg);
do_ioctl:
error = do_vfs_ioctl(f.file, fd, cmd, arg);
out_fput:
fdput(f);
out:
return error;
}
static int __init init_sys32_ioctl_cmp(const void *p, const void *q)
{
unsigned int a, b;
a = *(unsigned int *)p;
b = *(unsigned int *)q;
if (a > b)
return 1;
if (a < b)
return -1;
return 0;
}
static int __init init_sys32_ioctl(void)
{
sort(ioctl_pointer, ARRAY_SIZE(ioctl_pointer), sizeof(*ioctl_pointer),
init_sys32_ioctl_cmp, NULL);
return 0;
}
__initcall(init_sys32_ioctl);
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