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path: root/fs/compat_ioctl.c
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Diffstat (limited to 'fs/compat_ioctl.c')
-rw-r--r--fs/compat_ioctl.c100
1 files changed, 40 insertions, 60 deletions
diff --git a/fs/compat_ioctl.c b/fs/compat_ioctl.c
index 61abb638b4b..e8228904727 100644
--- a/fs/compat_ioctl.c
+++ b/fs/compat_ioctl.c
@@ -34,7 +34,7 @@
#include <linux/fs.h>
#include <linux/file.h>
#include <linux/ppp_defs.h>
-#include <linux/if_ppp.h>
+#include <linux/ppp-ioctl.h>
#include <linux/if_pppox.h>
#include <linux/mtio.h>
#include <linux/auto_fs.h>
@@ -49,7 +49,6 @@
#include <linux/elevator.h>
#include <linux/rtc.h>
#include <linux/pci.h>
-#include <linux/module.h>
#include <linux/serial.h>
#include <linux/if_tun.h>
#include <linux/ctype.h>
@@ -67,7 +66,8 @@
#include <linux/gigaset_dev.h>
#ifdef CONFIG_BLOCK
-#include <linux/loop.h>
+#include <linux/cdrom.h>
+#include <linux/fd.h>
#include <scsi/scsi.h>
#include <scsi/scsi_ioctl.h>
#include <scsi/sg.h>
@@ -103,6 +103,7 @@
#include <linux/hiddev.h>
+#define __DVB_CORE__
#include <linux/dvb/audio.h>
#include <linux/dvb/dmx.h>
#include <linux/dvb/frontend.h>
@@ -208,6 +209,8 @@ static int do_video_set_spu_palette(unsigned int fd, unsigned int cmd,
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);
@@ -604,7 +607,6 @@ struct serial_struct32 {
static int serial_struct_ioctl(unsigned fd, unsigned cmd,
struct serial_struct32 __user *ss32)
{
- typedef struct serial_struct SS;
typedef struct serial_struct32 SS32;
int err;
struct serial_struct ss;
@@ -678,7 +680,8 @@ static int do_i2c_rdwr_ioctl(unsigned int fd, unsigned int cmd,
struct i2c_msg __user *tmsgs;
struct i2c_msg32 __user *umsgs;
compat_caddr_t datap;
- int nmsgs, i;
+ u32 nmsgs;
+ int i;
if (get_user(nmsgs, &udata->nmsgs))
return -EFAULT;
@@ -840,6 +843,9 @@ 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)
@@ -864,6 +870,12 @@ 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)
@@ -895,6 +907,8 @@ 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)
@@ -940,10 +954,11 @@ COMPATIBLE_IOCTL(MTIOCTOP)
/* Socket level stuff */
COMPATIBLE_IOCTL(FIOQSIZE)
#ifdef CONFIG_BLOCK
-/* loop */
-IGNORE_IOCTL(LOOP_CLR_FD)
/* 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)
@@ -998,6 +1013,7 @@ COMPATIBLE_IOCTL(PPPIOCCONNECT)
COMPATIBLE_IOCTL(PPPIOCDISCONN)
COMPATIBLE_IOCTL(PPPIOCATTCHAN)
COMPATIBLE_IOCTL(PPPIOCGCHAN)
+COMPATIBLE_IOCTL(PPPIOCGL2TPSTATS)
/* PPPOX */
COMPATIBLE_IOCTL(PPPOEIOCSFWD)
COMPATIBLE_IOCTL(PPPOEIOCDFWD)
@@ -1500,35 +1516,6 @@ static long do_ioctl_trans(int fd, unsigned int cmd,
return -ENOIOCTLCMD;
}
-static void compat_ioctl_error(struct file *filp, unsigned int fd,
- unsigned int cmd, unsigned long arg)
-{
- char buf[10];
- char *fn = "?";
- char *path;
-
- /* find the name of the device. */
- path = (char *)__get_free_page(GFP_KERNEL);
- if (path) {
- fn = d_path(&filp->f_path, path, PAGE_SIZE);
- if (IS_ERR(fn))
- fn = "?";
- }
-
- sprintf(buf,"'%c'", (cmd>>_IOC_TYPESHIFT) & _IOC_TYPEMASK);
- if (!isprint(buf[1]))
- sprintf(buf, "%02x", buf[1]);
- compat_printk("ioctl32(%s:%d): Unknown cmd fd(%d) "
- "cmd(%08x){t:%s;sz:%u} arg(%08x) on %s\n",
- current->comm, current->pid,
- (int)fd, (unsigned int)cmd, buf,
- (cmd >> _IOC_SIZESHIFT) & _IOC_SIZEMASK,
- (unsigned int)arg, fn);
-
- if (path)
- free_page((unsigned long)path);
-}
-
static int compat_ioctl_check_table(unsigned int xcmd)
{
int i;
@@ -1551,19 +1538,17 @@ static int compat_ioctl_check_table(unsigned int xcmd)
return ioctl_pointer[i] == xcmd;
}
-asmlinkage long compat_sys_ioctl(unsigned int fd, unsigned int cmd,
- unsigned long arg)
+COMPAT_SYSCALL_DEFINE3(ioctl, unsigned int, fd, unsigned int, cmd,
+ compat_ulong_t, arg32)
{
- struct file *filp;
+ unsigned long arg = arg32;
+ struct fd f = fdget(fd);
int error = -EBADF;
- int fput_needed;
-
- filp = fget_light(fd, &fput_needed);
- if (!filp)
+ if (!f.file)
goto out;
/* RED-PEN how should LSM module know it's handling 32bit? */
- error = security_file_ioctl(filp, cmd, arg);
+ error = security_file_ioctl(f.file, cmd, arg);
if (error)
goto out_fput;
@@ -1583,30 +1568,30 @@ asmlinkage long compat_sys_ioctl(unsigned int fd, unsigned int cmd,
#if defined(CONFIG_IA64) || defined(CONFIG_X86_64)
case FS_IOC_RESVSP_32:
case FS_IOC_RESVSP64_32:
- error = compat_ioctl_preallocate(filp, compat_ptr(arg));
+ error = compat_ioctl_preallocate(f.file, compat_ptr(arg));
goto out_fput;
#else
case FS_IOC_RESVSP:
case FS_IOC_RESVSP64:
- error = ioctl_preallocate(filp, compat_ptr(arg));
+ error = ioctl_preallocate(f.file, compat_ptr(arg));
goto out_fput;
#endif
case FIBMAP:
case FIGETBSZ:
case FIONREAD:
- if (S_ISREG(filp->f_path.dentry->d_inode->i_mode))
+ if (S_ISREG(file_inode(f.file)->i_mode))
break;
/*FALL THROUGH*/
default:
- if (filp->f_op && filp->f_op->compat_ioctl) {
- error = filp->f_op->compat_ioctl(filp, cmd, arg);
+ 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 (!filp->f_op || !filp->f_op->unlocked_ioctl)
+ if (!f.file->f_op->unlocked_ioctl)
goto do_ioctl;
break;
}
@@ -1614,23 +1599,18 @@ asmlinkage long compat_sys_ioctl(unsigned int fd, unsigned int cmd,
if (compat_ioctl_check_table(XFORM(cmd)))
goto found_handler;
- error = do_ioctl_trans(fd, cmd, arg, filp);
- if (error == -ENOIOCTLCMD) {
- static int count;
-
- if (++count <= 50)
- compat_ioctl_error(filp, fd, cmd, arg);
- error = -EINVAL;
- }
+ error = do_ioctl_trans(fd, 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(filp, fd, cmd, arg);
+ error = do_vfs_ioctl(f.file, fd, cmd, arg);
out_fput:
- fput_light(filp, fput_needed);
+ fdput(f);
out:
return error;
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-10 12:34:36 +0000