License cleanup: add SPDX GPL-2.0 license identifier to files with no license
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.
By default all files without license information are under the default
license of the kernel, which is GPL version 2.
Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier. The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.
This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.
How this work was done:
Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
- file had no licensing information it it.
- file was a */uapi/* one with no licensing information in it,
- file was a */uapi/* one with existing licensing information,
Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.
The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne. Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.
The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed. Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.
Criteria used to select files for SPDX license identifier tagging was:
- Files considered eligible had to be source code files.
- Make and config files were included as candidates if they contained >5
lines of source
- File already had some variant of a license header in it (even if <5
lines).
All documentation files were explicitly excluded.
The following heuristics were used to determine which SPDX license
identifiers to apply.
- when both scanners couldn't find any license traces, file was
considered to have no license information in it, and the top level
COPYING file license applied.
For non */uapi/* files that summary was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 11139
and resulted in the first patch in this series.
If that file was a */uapi/* path one, it was "GPL-2.0 WITH
Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was:
SPDX license identifier # files
---------------------------------------------------|-------
GPL-2.0 WITH Linux-syscall-note 930
and resulted in the second patch in this series.
- if a file had some form of licensing information in it, and was one
of the */uapi/* ones, it was denoted with the Linux-syscall-note if
any GPL family license was found in the file or had no licensing in
it (per prior point). Results summary:
SPDX license identifier # files
---------------------------------------------------|------
GPL-2.0 WITH Linux-syscall-note 270
GPL-2.0+ WITH Linux-syscall-note 169
((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21
((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17
LGPL-2.1+ WITH Linux-syscall-note 15
GPL-1.0+ WITH Linux-syscall-note 14
((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5
LGPL-2.0+ WITH Linux-syscall-note 4
LGPL-2.1 WITH Linux-syscall-note 3
((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3
((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1
and that resulted in the third patch in this series.
- when the two scanners agreed on the detected license(s), that became
the concluded license(s).
- when there was disagreement between the two scanners (one detected a
license but the other didn't, or they both detected different
licenses) a manual inspection of the file occurred.
- In most cases a manual inspection of the information in the file
resulted in a clear resolution of the license that should apply (and
which scanner probably needed to revisit its heuristics).
- When it was not immediately clear, the license identifier was
confirmed with lawyers working with the Linux Foundation.
- If there was any question as to the appropriate license identifier,
the file was flagged for further research and to be revisited later
in time.
In total, over 70 hours of logged manual review was done on the
spreadsheet to determine the SPDX license identifiers to apply to the
source files by Kate, Philippe, Thomas and, in some cases, confirmation
by lawyers working with the Linux Foundation.
Kate also obtained a third independent scan of the 4.13 code base from
FOSSology, and compared selected files where the other two scanners
disagreed against that SPDX file, to see if there was new insights. The
Windriver scanner is based on an older version of FOSSology in part, so
they are related.
Thomas did random spot checks in about 500 files from the spreadsheets
for the uapi headers and agreed with SPDX license identifier in the
files he inspected. For the non-uapi files Thomas did random spot checks
in about 15000 files.
In initial set of patches against 4.14-rc6, 3 files were found to have
copy/paste license identifier errors, and have been fixed to reflect the
correct identifier.
Additionally Philippe spent 10 hours this week doing a detailed manual
inspection and review of the 12,461 patched files from the initial patch
version early this week with:
- a full scancode scan run, collecting the matched texts, detected
license ids and scores
- reviewing anything where there was a license detected (about 500+
files) to ensure that the applied SPDX license was correct
- reviewing anything where there was no detection but the patch license
was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
SPDX license was correct
This produced a worksheet with 20 files needing minor correction. This
worksheet was then exported into 3 different .csv files for the
different types of files to be modified.
These .csv files were then reviewed by Greg. Thomas wrote a script to
parse the csv files and add the proper SPDX tag to the file, in the
format that the file expected. This script was further refined by Greg
based on the output to detect more types of files automatically and to
distinguish between header and source .c files (which need different
comment types.) Finally Greg ran the script using the .csv files to
generate the patches.
Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org>
Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-01 22:07:57 +08:00
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// SPDX-License-Identifier: GPL-2.0
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2005-04-17 06:20:36 +08:00
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/*
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* ioctl32.c: Conversion between 32bit and 64bit native ioctls.
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*
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* Copyright (C) 1997-2000 Jakub Jelinek (jakub@redhat.com)
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* Copyright (C) 1998 Eddie C. Dost (ecd@skynet.be)
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* Copyright (C) 2001,2002 Andi Kleen, SuSE Labs
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2010-07-18 20:27:13 +08:00
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* Copyright (C) 2003 Pavel Machek (pavel@ucw.cz)
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2005-04-17 06:20:36 +08:00
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*
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* These routines maintain argument size conversion between 32bit and 64bit
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* ioctls.
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*/
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#include <linux/types.h>
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#include <linux/compat.h>
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#include <linux/kernel.h>
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2006-01-12 04:17:46 +08:00
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#include <linux/capability.h>
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2005-04-17 06:20:36 +08:00
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#include <linux/compiler.h>
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#include <linux/sched.h>
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#include <linux/smp.h>
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#include <linux/ioctl.h>
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#include <linux/if.h>
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2009-03-31 11:33:13 +08:00
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#include <linux/raid/md_u.h>
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2009-06-20 02:28:07 +08:00
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#include <linux/falloc.h>
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2005-04-17 06:20:36 +08:00
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#include <linux/file.h>
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2012-03-04 20:56:55 +08:00
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#include <linux/ppp-ioctl.h>
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2005-04-17 06:20:36 +08:00
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#include <linux/if_pppox.h>
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#include <linux/tty.h>
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#include <linux/vt_kern.h>
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#include <linux/blkdev.h>
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#include <linux/serial.h>
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#include <linux/ctype.h>
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#include <linux/syscalls.h>
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include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files. percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.
percpu.h -> slab.h dependency is about to be removed. Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability. As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.
http://userweb.kernel.org/~tj/misc/slabh-sweep.py
The script does the followings.
* Scan files for gfp and slab usages and update includes such that
only the necessary includes are there. ie. if only gfp is used,
gfp.h, if slab is used, slab.h.
* When the script inserts a new include, it looks at the include
blocks and try to put the new include such that its order conforms
to its surrounding. It's put in the include block which contains
core kernel includes, in the same order that the rest are ordered -
alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
doesn't seem to be any matching order.
* If the script can't find a place to put a new include (mostly
because the file doesn't have fitting include block), it prints out
an error message indicating which .h file needs to be added to the
file.
The conversion was done in the following steps.
1. The initial automatic conversion of all .c files updated slightly
over 4000 files, deleting around 700 includes and adding ~480 gfp.h
and ~3000 slab.h inclusions. The script emitted errors for ~400
files.
2. Each error was manually checked. Some didn't need the inclusion,
some needed manual addition while adding it to implementation .h or
embedding .c file was more appropriate for others. This step added
inclusions to around 150 files.
3. The script was run again and the output was compared to the edits
from #2 to make sure no file was left behind.
4. Several build tests were done and a couple of problems were fixed.
e.g. lib/decompress_*.c used malloc/free() wrappers around slab
APIs requiring slab.h to be added manually.
5. The script was run on all .h files but without automatically
editing them as sprinkling gfp.h and slab.h inclusions around .h
files could easily lead to inclusion dependency hell. Most gfp.h
inclusion directives were ignored as stuff from gfp.h was usually
wildly available and often used in preprocessor macros. Each
slab.h inclusion directive was examined and added manually as
necessary.
6. percpu.h was updated not to include slab.h.
7. Build test were done on the following configurations and failures
were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
distributed build env didn't work with gcov compiles) and a few
more options had to be turned off depending on archs to make things
build (like ipr on powerpc/64 which failed due to missing writeq).
* x86 and x86_64 UP and SMP allmodconfig and a custom test config.
* powerpc and powerpc64 SMP allmodconfig
* sparc and sparc64 SMP allmodconfig
* ia64 SMP allmodconfig
* s390 SMP allmodconfig
* alpha SMP allmodconfig
* um on x86_64 SMP allmodconfig
8. percpu.h modifications were reverted so that it could be applied as
a separate patch and serve as bisection point.
Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.
Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
2010-03-24 16:04:11 +08:00
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#include <linux/gfp.h>
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2015-11-11 18:26:12 +08:00
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#include <linux/cec.h>
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2005-04-17 06:20:36 +08:00
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2016-01-07 22:53:30 +08:00
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#include "internal.h"
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2008-07-16 21:52:00 +08:00
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#ifdef CONFIG_BLOCK
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2011-07-02 04:32:26 +08:00
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#include <linux/cdrom.h>
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#include <linux/fd.h>
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2005-04-17 06:20:36 +08:00
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#include <scsi/scsi.h>
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#include <scsi/scsi_ioctl.h>
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#include <scsi/sg.h>
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2008-07-16 21:52:00 +08:00
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#endif
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2005-04-17 06:20:36 +08:00
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2016-12-25 03:46:01 +08:00
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#include <linux/uaccess.h>
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2005-04-17 06:20:36 +08:00
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#include <linux/watchdog.h>
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#include <linux/hiddev.h>
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2005-11-16 16:52:57 +08:00
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2009-11-06 02:52:55 +08:00
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#include <linux/sort.h>
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2016-01-07 22:53:30 +08:00
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static int do_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
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compat_ioctl: don't look up the fd twice
In code in fs/compat_ioctl.c that translates ioctl arguments
into a in-kernel structure, then performs sys_ioctl, possibly
under set_fs(KERNEL_DS), this commit changes the sys_ioctl
calls to do_ioctl calls. do_ioctl is a new function that does
the same thing as sys_ioctl, but doesn't look up the fd again.
This change is made to avoid (potential) security issues
because of ioctl handlers that accept one of the ioctl
commands I2C_FUNCS, VIDEO_GET_EVENT, MTIOCPOS, MTIOCGET,
TIOCGSERIAL, TIOCSSERIAL, RTC_IRQP_READ, RTC_EPOCH_READ.
This can happen for multiple reasons:
- The ioctl command number could be reused.
- The ioctl handler might not check the full ioctl
command. This is e.g. true for drm_ioctl.
- The ioctl handler is very special, e.g. cuse_file_ioctl
The real issue is that set_fs(KERNEL_DS) is used here,
but that's fixed in a separate commit
"compat_ioctl: don't call do_ioctl under set_fs(KERNEL_DS)".
This change mitigates potential security issues by
preventing a race that permits invocation of
unlocked_ioctl handlers under KERNEL_DS through compat
code even if a corresponding compat_ioctl handler exists.
So far, no way has been identified to use this to damage
kernel memory without having CAP_SYS_ADMIN in the init ns
(with the capability, doing reads/writes at arbitrary
kernel addresses should be easy through CUSE's ioctl
handler with FUSE_IOCTL_UNRESTRICTED set).
[AV: two missed sys_ioctl() taken care of]
Signed-off-by: Jann Horn <jann@thejh.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-01-06 01:27:29 +08:00
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{
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int err;
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err = security_file_ioctl(file, cmd, arg);
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if (err)
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return err;
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2016-01-07 22:53:30 +08:00
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return vfs_ioctl(file, cmd, arg);
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compat_ioctl: don't look up the fd twice
In code in fs/compat_ioctl.c that translates ioctl arguments
into a in-kernel structure, then performs sys_ioctl, possibly
under set_fs(KERNEL_DS), this commit changes the sys_ioctl
calls to do_ioctl calls. do_ioctl is a new function that does
the same thing as sys_ioctl, but doesn't look up the fd again.
This change is made to avoid (potential) security issues
because of ioctl handlers that accept one of the ioctl
commands I2C_FUNCS, VIDEO_GET_EVENT, MTIOCPOS, MTIOCGET,
TIOCGSERIAL, TIOCSSERIAL, RTC_IRQP_READ, RTC_EPOCH_READ.
This can happen for multiple reasons:
- The ioctl command number could be reused.
- The ioctl handler might not check the full ioctl
command. This is e.g. true for drm_ioctl.
- The ioctl handler is very special, e.g. cuse_file_ioctl
The real issue is that set_fs(KERNEL_DS) is used here,
but that's fixed in a separate commit
"compat_ioctl: don't call do_ioctl under set_fs(KERNEL_DS)".
This change mitigates potential security issues by
preventing a race that permits invocation of
unlocked_ioctl handlers under KERNEL_DS through compat
code even if a corresponding compat_ioctl handler exists.
So far, no way has been identified to use this to damage
kernel memory without having CAP_SYS_ADMIN in the init ns
(with the capability, doing reads/writes at arbitrary
kernel addresses should be easy through CUSE's ioctl
handler with FUSE_IOCTL_UNRESTRICTED set).
[AV: two missed sys_ioctl() taken care of]
Signed-off-by: Jann Horn <jann@thejh.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-01-06 01:27:29 +08:00
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}
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[PATCH] BLOCK: Make it possible to disable the block layer [try #6]
Make it possible to disable the block layer. Not all embedded devices require
it, some can make do with just JFFS2, NFS, ramfs, etc - none of which require
the block layer to be present.
This patch does the following:
(*) Introduces CONFIG_BLOCK to disable the block layer, buffering and blockdev
support.
(*) Adds dependencies on CONFIG_BLOCK to any configuration item that controls
an item that uses the block layer. This includes:
(*) Block I/O tracing.
(*) Disk partition code.
(*) All filesystems that are block based, eg: Ext3, ReiserFS, ISOFS.
(*) The SCSI layer. As far as I can tell, even SCSI chardevs use the
block layer to do scheduling. Some drivers that use SCSI facilities -
such as USB storage - end up disabled indirectly from this.
(*) Various block-based device drivers, such as IDE and the old CDROM
drivers.
(*) MTD blockdev handling and FTL.
(*) JFFS - which uses set_bdev_super(), something it could avoid doing by
taking a leaf out of JFFS2's book.
(*) Makes most of the contents of linux/blkdev.h, linux/buffer_head.h and
linux/elevator.h contingent on CONFIG_BLOCK being set. sector_div() is,
however, still used in places, and so is still available.
(*) Also made contingent are the contents of linux/mpage.h, linux/genhd.h and
parts of linux/fs.h.
(*) Makes a number of files in fs/ contingent on CONFIG_BLOCK.
(*) Makes mm/bounce.c (bounce buffering) contingent on CONFIG_BLOCK.
(*) set_page_dirty() doesn't call __set_page_dirty_buffers() if CONFIG_BLOCK
is not enabled.
(*) fs/no-block.c is created to hold out-of-line stubs and things that are
required when CONFIG_BLOCK is not set:
(*) Default blockdev file operations (to give error ENODEV on opening).
(*) Makes some /proc changes:
(*) /proc/devices does not list any blockdevs.
(*) /proc/diskstats and /proc/partitions are contingent on CONFIG_BLOCK.
(*) Makes some compat ioctl handling contingent on CONFIG_BLOCK.
(*) If CONFIG_BLOCK is not defined, makes sys_quotactl() return -ENODEV if
given command other than Q_SYNC or if a special device is specified.
(*) In init/do_mounts.c, no reference is made to the blockdev routines if
CONFIG_BLOCK is not defined. This does not prohibit NFS roots or JFFS2.
(*) The bdflush, ioprio_set and ioprio_get syscalls can now be absent (return
error ENOSYS by way of cond_syscall if so).
(*) The seclvl_bd_claim() and seclvl_bd_release() security calls do nothing if
CONFIG_BLOCK is not set, since they can't then happen.
Signed-Off-By: David Howells <dhowells@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2006-10-01 02:45:40 +08:00
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#ifdef CONFIG_BLOCK
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2006-01-12 05:44:03 +08:00
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struct compat_sg_req_info { /* used by SG_GET_REQUEST_TABLE ioctl() */
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char req_state;
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char orphan;
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char sg_io_owned;
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char problem;
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int pack_id;
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compat_uptr_t usr_ptr;
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unsigned int duration;
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int unused;
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};
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|
2016-01-07 22:53:30 +08:00
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static int sg_grt_trans(struct file *file,
|
compat_ioctl: don't look up the fd twice
In code in fs/compat_ioctl.c that translates ioctl arguments
into a in-kernel structure, then performs sys_ioctl, possibly
under set_fs(KERNEL_DS), this commit changes the sys_ioctl
calls to do_ioctl calls. do_ioctl is a new function that does
the same thing as sys_ioctl, but doesn't look up the fd again.
This change is made to avoid (potential) security issues
because of ioctl handlers that accept one of the ioctl
commands I2C_FUNCS, VIDEO_GET_EVENT, MTIOCPOS, MTIOCGET,
TIOCGSERIAL, TIOCSSERIAL, RTC_IRQP_READ, RTC_EPOCH_READ.
This can happen for multiple reasons:
- The ioctl command number could be reused.
- The ioctl handler might not check the full ioctl
command. This is e.g. true for drm_ioctl.
- The ioctl handler is very special, e.g. cuse_file_ioctl
The real issue is that set_fs(KERNEL_DS) is used here,
but that's fixed in a separate commit
"compat_ioctl: don't call do_ioctl under set_fs(KERNEL_DS)".
This change mitigates potential security issues by
preventing a race that permits invocation of
unlocked_ioctl handlers under KERNEL_DS through compat
code even if a corresponding compat_ioctl handler exists.
So far, no way has been identified to use this to damage
kernel memory without having CAP_SYS_ADMIN in the init ns
(with the capability, doing reads/writes at arbitrary
kernel addresses should be easy through CUSE's ioctl
handler with FUSE_IOCTL_UNRESTRICTED set).
[AV: two missed sys_ioctl() taken care of]
Signed-off-by: Jann Horn <jann@thejh.net>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-01-06 01:27:29 +08:00
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unsigned int cmd, struct compat_sg_req_info __user *o)
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2006-01-12 05:44:03 +08:00
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{
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int err, i;
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2006-02-01 19:33:33 +08:00
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sg_req_info_t __user *r;
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2006-01-12 05:44:03 +08:00
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r = compat_alloc_user_space(sizeof(sg_req_info_t)*SG_MAX_QUEUE);
|
2016-01-07 22:53:30 +08:00
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err = do_ioctl(file, cmd, (unsigned long)r);
|
2006-01-12 05:44:03 +08:00
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if (err < 0)
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return err;
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for (i = 0; i < SG_MAX_QUEUE; i++) {
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void __user *ptr;
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int d;
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|
|
|
|
|
|
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;
|
|
|
|
|
|
}
|
[PATCH] BLOCK: Make it possible to disable the block layer [try #6]
Make it possible to disable the block layer. Not all embedded devices require
it, some can make do with just JFFS2, NFS, ramfs, etc - none of which require
the block layer to be present.
This patch does the following:
(*) Introduces CONFIG_BLOCK to disable the block layer, buffering and blockdev
support.
(*) Adds dependencies on CONFIG_BLOCK to any configuration item that controls
an item that uses the block layer. This includes:
(*) Block I/O tracing.
(*) Disk partition code.
(*) All filesystems that are block based, eg: Ext3, ReiserFS, ISOFS.
(*) The SCSI layer. As far as I can tell, even SCSI chardevs use the
block layer to do scheduling. Some drivers that use SCSI facilities -
such as USB storage - end up disabled indirectly from this.
(*) Various block-based device drivers, such as IDE and the old CDROM
drivers.
(*) MTD blockdev handling and FTL.
(*) JFFS - which uses set_bdev_super(), something it could avoid doing by
taking a leaf out of JFFS2's book.
(*) Makes most of the contents of linux/blkdev.h, linux/buffer_head.h and
linux/elevator.h contingent on CONFIG_BLOCK being set. sector_div() is,
however, still used in places, and so is still available.
(*) Also made contingent are the contents of linux/mpage.h, linux/genhd.h and
parts of linux/fs.h.
(*) Makes a number of files in fs/ contingent on CONFIG_BLOCK.
(*) Makes mm/bounce.c (bounce buffering) contingent on CONFIG_BLOCK.
(*) set_page_dirty() doesn't call __set_page_dirty_buffers() if CONFIG_BLOCK
is not enabled.
(*) fs/no-block.c is created to hold out-of-line stubs and things that are
required when CONFIG_BLOCK is not set:
(*) Default blockdev file operations (to give error ENODEV on opening).
(*) Makes some /proc changes:
(*) /proc/devices does not list any blockdevs.
(*) /proc/diskstats and /proc/partitions are contingent on CONFIG_BLOCK.
(*) Makes some compat ioctl handling contingent on CONFIG_BLOCK.
(*) If CONFIG_BLOCK is not defined, makes sys_quotactl() return -ENODEV if
given command other than Q_SYNC or if a special device is specified.
(*) In init/do_mounts.c, no reference is made to the blockdev routines if
CONFIG_BLOCK is not defined. This does not prohibit NFS roots or JFFS2.
(*) The bdflush, ioprio_set and ioprio_get syscalls can now be absent (return
error ENOSYS by way of cond_syscall if so).
(*) The seclvl_bd_claim() and seclvl_bd_release() security calls do nothing if
CONFIG_BLOCK is not set, since they can't then happen.
Signed-Off-By: David Howells <dhowells@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2006-10-01 02:45:40 +08:00
|
|
|
|
#endif /* CONFIG_BLOCK */
|
2006-01-12 05:44:03 +08:00
|
|
|
|
|
2005-04-17 06:20:36 +08:00
|
|
|
|
struct ppp_idle32 {
|
|
|
|
|
|
compat_time_t xmit_idle;
|
|
|
|
|
|
compat_time_t recv_idle;
|
|
|
|
|
|
};
|
|
|
|
|
|
#define PPPIOCGIDLE32 _IOR('t', 63, struct ppp_idle32)
|
|
|
|
|
|
|
2016-01-07 22:53:30 +08:00
|
|
|
|
static int ppp_gidle(struct file *file, unsigned int cmd,
|
2009-11-15 06:16:18 +08:00
|
|
|
|
struct ppp_idle32 __user *idle32)
|
2005-04-17 06:20:36 +08:00
|
|
|
|
{
|
|
|
|
|
|
struct ppp_idle __user *idle;
|
|
|
|
|
|
__kernel_time_t xmit, recv;
|
|
|
|
|
|
int err;
|
|
|
|
|
|
|
|
|
|
|
|
idle = compat_alloc_user_space(sizeof(*idle));
|
|
|
|
|
|
|
2016-01-07 22:53:30 +08:00
|
|
|
|
err = do_ioctl(file, PPPIOCGIDLE, (unsigned long) idle);
|
2005-04-17 06:20:36 +08:00
|
|
|
|
|
|
|
|
|
|
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;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
2009-11-06 02:52:55 +08:00
|
|
|
|
/*
|
|
|
|
|
|
* simple reversible transform to make our table more evenly
|
|
|
|
|
|
* distributed after sorting.
|
|
|
|
|
|
*/
|
|
|
|
|
|
#define XFORM(i) (((i) ^ ((i) << 27) ^ ((i) << 17)) & 0xffffffff)
|
2007-05-08 15:29:21 +08:00
|
|
|
|
|
2017-04-29 06:15:12 +08:00
|
|
|
|
#define COMPATIBLE_IOCTL(cmd) XFORM((u32)cmd),
|
2009-11-06 02:52:55 +08:00
|
|
|
|
static unsigned int ioctl_pointer[] = {
|
2008-07-16 21:52:00 +08:00
|
|
|
|
#ifdef CONFIG_BLOCK
|
2007-05-08 15:29:07 +08:00
|
|
|
|
/* 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)
|
2008-07-16 21:52:00 +08:00
|
|
|
|
#endif
|
|
|
|
|
|
#ifdef CONFIG_BLOCK
|
2007-05-08 15:29:07 +08:00
|
|
|
|
/* SG stuff */
|
2019-03-15 00:45:18 +08:00
|
|
|
|
COMPATIBLE_IOCTL(SG_IO)
|
2007-05-08 15:29:07 +08:00
|
|
|
|
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)
|
2008-07-16 21:52:00 +08:00
|
|
|
|
#endif
|
2007-05-08 15:29:07 +08:00
|
|
|
|
/* 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)
|
2011-08-06 20:12:04 +08:00
|
|
|
|
COMPATIBLE_IOCTL(PPPIOCGL2TPSTATS)
|
2006-01-10 12:52:14 +08:00
|
|
|
|
};
|
2005-11-16 16:52:57 +08:00
|
|
|
|
|
2009-05-22 06:04:16 +08:00
|
|
|
|
/*
|
|
|
|
|
|
* 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.
|
|
|
|
|
|
*/
|
2016-01-07 22:53:30 +08:00
|
|
|
|
static long do_ioctl_trans(unsigned int cmd,
|
2009-05-22 06:04:16 +08:00
|
|
|
|
unsigned long arg, struct file *file)
|
|
|
|
|
|
{
|
2009-11-15 06:16:18 +08:00
|
|
|
|
void __user *argp = compat_ptr(arg);
|
|
|
|
|
|
|
2009-05-22 06:04:16 +08:00
|
|
|
|
switch (cmd) {
|
|
|
|
|
|
case PPPIOCGIDLE32:
|
2016-01-07 22:53:30 +08:00
|
|
|
|
return ppp_gidle(file, cmd, argp);
|
2009-05-22 06:04:16 +08:00
|
|
|
|
#ifdef CONFIG_BLOCK
|
|
|
|
|
|
case SG_GET_REQUEST_TABLE:
|
2016-01-07 22:53:30 +08:00
|
|
|
|
return sg_grt_trans(file, cmd, argp);
|
2009-05-22 06:04:16 +08:00
|
|
|
|
#endif
|
|
|
|
|
|
}
|
2009-11-06 02:13:51 +08:00
|
|
|
|
|
2009-05-22 06:04:16 +08:00
|
|
|
|
return -ENOIOCTLCMD;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
2009-11-06 02:52:55 +08:00
|
|
|
|
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;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
2014-03-04 23:07:52 +08:00
|
|
|
|
COMPAT_SYSCALL_DEFINE3(ioctl, unsigned int, fd, unsigned int, cmd,
|
|
|
|
|
|
compat_ulong_t, arg32)
|
2007-05-08 15:29:21 +08:00
|
|
|
|
{
|
2014-03-04 23:07:52 +08:00
|
|
|
|
unsigned long arg = arg32;
|
2012-08-29 00:52:22 +08:00
|
|
|
|
struct fd f = fdget(fd);
|
2007-05-08 15:29:21 +08:00
|
|
|
|
int error = -EBADF;
|
2012-08-29 00:52:22 +08:00
|
|
|
|
if (!f.file)
|
2007-05-08 15:29:21 +08:00
|
|
|
|
goto out;
|
|
|
|
|
|
|
|
|
|
|
|
/* RED-PEN how should LSM module know it's handling 32bit? */
|
2012-08-29 00:52:22 +08:00
|
|
|
|
error = security_file_ioctl(f.file, cmd, arg);
|
2007-05-08 15:29:21 +08:00
|
|
|
|
if (error)
|
|
|
|
|
|
goto out_fput;
|
|
|
|
|
|
|
|
|
|
|
|
switch (cmd) {
|
2019-04-22 08:43:10 +08:00
|
|
|
|
/* these are never seen by ->ioctl(), no argument or int argument */
|
2007-05-08 15:29:21 +08:00
|
|
|
|
case FIOCLEX:
|
|
|
|
|
|
case FIONCLEX:
|
2019-04-22 08:43:10 +08:00
|
|
|
|
case FIFREEZE:
|
|
|
|
|
|
case FITHAW:
|
|
|
|
|
|
case FICLONE:
|
|
|
|
|
|
goto do_ioctl;
|
|
|
|
|
|
/* these are never seen by ->ioctl(), pointer argument */
|
2007-05-08 15:29:21 +08:00
|
|
|
|
case FIONBIO:
|
|
|
|
|
|
case FIOASYNC:
|
|
|
|
|
|
case FIOQSIZE:
|
2019-04-22 08:43:10 +08:00
|
|
|
|
case FS_IOC_FIEMAP:
|
|
|
|
|
|
case FIGETBSZ:
|
|
|
|
|
|
case FICLONERANGE:
|
|
|
|
|
|
case FIDEDUPERANGE:
|
|
|
|
|
|
goto found_handler;
|
|
|
|
|
|
/*
|
|
|
|
|
|
* The next group is the stuff handled inside file_ioctl().
|
|
|
|
|
|
* For regular files these never reach ->ioctl(); for
|
|
|
|
|
|
* devices, sockets, etc. they do and one (FIONREAD) is
|
|
|
|
|
|
* even accepted in some cases. In all those cases
|
|
|
|
|
|
* argument has the same type, so we can handle these
|
|
|
|
|
|
* here, shunting them towards do_vfs_ioctl().
|
|
|
|
|
|
* ->compat_ioctl() will never see any of those.
|
|
|
|
|
|
*/
|
|
|
|
|
|
/* pointer argument, never actually handled by ->ioctl() */
|
|
|
|
|
|
case FIBMAP:
|
|
|
|
|
|
goto found_handler;
|
|
|
|
|
|
/* handled by some ->ioctl(); always a pointer to int */
|
|
|
|
|
|
case FIONREAD:
|
|
|
|
|
|
goto found_handler;
|
|
|
|
|
|
/* these two get messy on amd64 due to alignment differences */
|
2019-04-22 07:10:09 +08:00
|
|
|
|
#if defined(CONFIG_X86_64)
|
2009-06-20 02:28:07 +08:00
|
|
|
|
case FS_IOC_RESVSP_32:
|
|
|
|
|
|
case FS_IOC_RESVSP64_32:
|
2012-08-29 00:52:22 +08:00
|
|
|
|
error = compat_ioctl_preallocate(f.file, compat_ptr(arg));
|
2009-06-20 02:28:07 +08:00
|
|
|
|
goto out_fput;
|
|
|
|
|
|
#else
|
|
|
|
|
|
case FS_IOC_RESVSP:
|
|
|
|
|
|
case FS_IOC_RESVSP64:
|
2019-04-22 06:53:50 +08:00
|
|
|
|
goto found_handler;
|
2019-04-22 08:43:10 +08:00
|
|
|
|
#endif
|
2007-05-08 15:29:21 +08:00
|
|
|
|
|
|
|
|
|
|
default:
|
2013-09-23 04:27:52 +08:00
|
|
|
|
if (f.file->f_op->compat_ioctl) {
|
2012-08-29 00:52:22 +08:00
|
|
|
|
error = f.file->f_op->compat_ioctl(f.file, cmd, arg);
|
2007-05-08 15:29:21 +08:00
|
|
|
|
if (error != -ENOIOCTLCMD)
|
|
|
|
|
|
goto out_fput;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
2013-09-23 04:27:52 +08:00
|
|
|
|
if (!f.file->f_op->unlocked_ioctl)
|
2007-05-08 15:29:21 +08:00
|
|
|
|
goto do_ioctl;
|
|
|
|
|
|
break;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
2009-11-06 02:52:55 +08:00
|
|
|
|
if (compat_ioctl_check_table(XFORM(cmd)))
|
|
|
|
|
|
goto found_handler;
|
2007-05-08 15:29:21 +08:00
|
|
|
|
|
2016-01-07 22:53:30 +08:00
|
|
|
|
error = do_ioctl_trans(cmd, arg, f.file);
|
2012-01-06 07:40:12 +08:00
|
|
|
|
if (error == -ENOIOCTLCMD)
|
|
|
|
|
|
error = -ENOTTY;
|
2007-05-08 15:29:21 +08:00
|
|
|
|
|
|
|
|
|
|
goto out_fput;
|
|
|
|
|
|
|
|
|
|
|
|
found_handler:
|
2009-11-06 02:13:51 +08:00
|
|
|
|
arg = (unsigned long)compat_ptr(arg);
|
2007-05-08 15:29:21 +08:00
|
|
|
|
do_ioctl:
|
2012-08-29 00:52:22 +08:00
|
|
|
|
error = do_vfs_ioctl(f.file, fd, cmd, arg);
|
2007-05-08 15:29:21 +08:00
|
|
|
|
out_fput:
|
2012-08-29 00:52:22 +08:00
|
|
|
|
fdput(f);
|
2007-05-08 15:29:21 +08:00
|
|
|
|
out:
|
|
|
|
|
|
return error;
|
|
|
|
|
|
}
|
|
|
|
|
|
|
2009-11-06 02:52:55 +08:00
|
|
|
|
static int __init init_sys32_ioctl_cmp(const void *p, const void *q)
|
2007-05-08 15:29:21 +08:00
|
|
|
|
{
|
2009-11-06 02:52:55 +08:00
|
|
|
|
unsigned int a, b;
|
|
|
|
|
|
a = *(unsigned int *)p;
|
|
|
|
|
|
b = *(unsigned int *)q;
|
|
|
|
|
|
if (a > b)
|
|
|
|
|
|
return 1;
|
|
|
|
|
|
if (a < b)
|
|
|
|
|
|
return -1;
|
|
|
|
|
|
return 0;
|
2007-05-08 15:29:21 +08:00
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static int __init init_sys32_ioctl(void)
|
|
|
|
|
|
{
|
2009-11-06 02:52:55 +08:00
|
|
|
|
sort(ioctl_pointer, ARRAY_SIZE(ioctl_pointer), sizeof(*ioctl_pointer),
|
|
|
|
|
|
init_sys32_ioctl_cmp, NULL);
|
2007-05-08 15:29:21 +08:00
|
|
|
|
return 0;
|
|
|
|
|
|
}
|
|
|
|
|
|
__initcall(init_sys32_ioctl);
|