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linux/fs/xfs/xfs_ioctl.h

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xfs: convert to SPDX license tags Remove the verbose license text from XFS files and replace them with SPDX tags. This does not change the license of any of the code, merely refers to the common, up-to-date license files in LICENSES/ This change was mostly scripted. fs/xfs/Makefile and fs/xfs/libxfs/xfs_fs.h were modified by hand, the rest were detected and modified by the following command: for f in `git grep -l "GNU General" fs/xfs/` ; do echo $f cat $f | awk -f hdr.awk > $f.new mv -f $f.new $f done And the hdr.awk script that did the modification (including detecting the difference between GPL-2.0 and GPL-2.0+ licenses) is as follows: $ cat hdr.awk BEGIN { hdr = 1.0 tag = "GPL-2.0" str = "" } /^ \* This program is free software/ { hdr = 2.0; next } /any later version./ { tag = "GPL-2.0+" next } /^ \*\// { if (hdr > 0.0) { print "// SPDX-License-Identifier: " tag print str print $0 str="" hdr = 0.0 next } print $0 next } /^ \* / { if (hdr > 1.0) next if (hdr > 0.0) { if (str != "") str = str "\n" str = str $0 next } print $0 next } /^ \*/ { if (hdr > 0.0) next print $0 next } // { if (hdr > 0.0) { if (str != "") str = str "\n" str = str $0 next } print $0 } END { } $ Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2018-06-06 05:42:14 +03:00
// SPDX-License-Identifier: GPL-2.0
[XFS] Clean up some existing compat ioctl calls Create a new xfs_ioctl.h file which has prototypes for ioctl helpers that may be called in compat mode. Change several compat ioctl cases which are IOW to simply copy in the userspace argument, then call the common ioctl helper. This also fixes xfs_compat_ioc_fsgeometry_v1(), which had it backwards before; it copied in an (empty) arg, then copied out the native result, which probably corrupted userspace. It should be translating on the copyout. Also, a bit of formatting cleanup for consistency, and conversion of all error returns to use XFS_ERROR(). Signed-off-by: Eric Sandeen <sandeen@sandeen.net> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
2008-11-26 06:20:08 +03:00
/*
* Copyright (c) 2008 Silicon Graphics, Inc.
* All Rights Reserved.
*/
#ifndef __XFS_IOCTL_H__
#define __XFS_IOCTL_H__
xfs: move the legacy xfs_attr_list to xfs_ioctl.c The old xfs_attr_list code is only used by the attrlist by handle ioctl. Move it to xfs_ioctl.c with its user. Also move the attrlist and attrlist_ent structure to xfs_fs.h, as they are exposed user ABIs. They are used through libattr headers with the same name by at least xfsdump. Also document this relation so that it doesn't require a research project to figure out. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Chandan Rajendra <chandanrlinux@gmail.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-02-27 04:30:38 +03:00
struct xfs_bstat;
struct xfs_ibulk;
struct xfs_inogrp;
xfs: consolidate extent swap code So we don't need xfs_dfrag.h in userspace anymore, move the extent swap ioctl structure definition to xfs_fs.h where most of the other ioctl structure definitions are. Now that we don't need separate files for extent swapping, separate the basic file descriptor checking code to xfs_ioctl.c, and the code that does the extent swap operation to xfs_bmap_util.c. This cleanly separates the user interface code from the physical mechanism used to do the extent swap. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Mark Tinguely <tinguely@sgi.com> Signed-off-by: Ben Myers <bpm@sgi.com>
2013-08-12 14:49:48 +04:00
int
xfs_ioc_swapext(
xfs_swapext_t *sxp);
[XFS] Clean up some existing compat ioctl calls Create a new xfs_ioctl.h file which has prototypes for ioctl helpers that may be called in compat mode. Change several compat ioctl cases which are IOW to simply copy in the userspace argument, then call the common ioctl helper. This also fixes xfs_compat_ioc_fsgeometry_v1(), which had it backwards before; it copied in an (empty) arg, then copied out the native result, which probably corrupted userspace. It should be translating on the copyout. Also, a bit of formatting cleanup for consistency, and conversion of all error returns to use XFS_ERROR(). Signed-off-by: Eric Sandeen <sandeen@sandeen.net> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
2008-11-26 06:20:08 +03:00
extern int
xfs_find_handle(
unsigned int cmd,
xfs_fsop_handlereq_t *hreq);
extern int
xfs_open_by_handle(
struct file *parfilp,
xfs: fix dentry aliasing issues in open_by_handle Open by handle just grabs an inode by handle and then creates itself a dentry for it. While this works for regular files it is horribly broken for directories, where the VFS locking relies on the fact that there is only just one single dentry for a given inode, and that these are always connected to the root of the filesystem so that it's locking algorithms work (see Documentations/filesystems/Locking) Remove all the existing open by handle code and replace it with a small wrapper around the exportfs code which deals with all these issues. At the same time we also make the checks for a valid handle strict enough to reject all not perfectly well formed handles - given that we never hand out others that's okay and simplifies the code. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <david@fromorbit.com>
2009-01-19 04:02:57 +03:00
xfs_fsop_handlereq_t *hreq);
[XFS] Clean up some existing compat ioctl calls Create a new xfs_ioctl.h file which has prototypes for ioctl helpers that may be called in compat mode. Change several compat ioctl cases which are IOW to simply copy in the userspace argument, then call the common ioctl helper. This also fixes xfs_compat_ioc_fsgeometry_v1(), which had it backwards before; it copied in an (empty) arg, then copied out the native result, which probably corrupted userspace. It should be translating on the copyout. Also, a bit of formatting cleanup for consistency, and conversion of all error returns to use XFS_ERROR(). Signed-off-by: Eric Sandeen <sandeen@sandeen.net> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
2008-11-26 06:20:08 +03:00
extern int
xfs_readlink_by_handle(
xfs: fix dentry aliasing issues in open_by_handle Open by handle just grabs an inode by handle and then creates itself a dentry for it. While this works for regular files it is horribly broken for directories, where the VFS locking relies on the fact that there is only just one single dentry for a given inode, and that these are always connected to the root of the filesystem so that it's locking algorithms work (see Documentations/filesystems/Locking) Remove all the existing open by handle code and replace it with a small wrapper around the exportfs code which deals with all these issues. At the same time we also make the checks for a valid handle strict enough to reject all not perfectly well formed handles - given that we never hand out others that's okay and simplifies the code. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <david@fromorbit.com>
2009-01-19 04:02:57 +03:00
struct file *parfilp,
xfs_fsop_handlereq_t *hreq);
[XFS] Hook up compat XFS_IOC_ATTRMULTI_BY_HANDLE ioctl handler Add a compat handler for XFS_IOC_ATTRMULTI_BY_HANDLE Signed-off-by: Eric Sandeen <sandeen@sandeen.net> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
2008-11-26 06:20:15 +03:00
xfs: factor out a helper for a single XFS_IOC_ATTRMULTI_BY_HANDLE op Add a new helper to handle a single attr multi ioctl operation that can be shared between the native and compat ioctl implementation. There is a slight change in behaviour in that we don't break out of the loop when copying in the attribute name fails. The previous behaviour was rather inconsistent here as it continued for any other kind of error, and that we don't clear the flags in the structure returned to userspace, a behavior only introduced as a bug fix in the last merge window. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Chandan Rajendra <chandanrlinux@gmail.com> Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
2020-02-27 04:30:31 +03:00
int xfs_ioc_attrmulti_one(struct file *parfilp, struct inode *inode,
uint32_t opcode, void __user *uname, void __user *value,
uint32_t *len, uint32_t flags);
xfs: prevent a WARN_ONCE() in xfs_ioc_attr_list() The "bufsize" comes from the root user. If "bufsize" is negative then, because of type promotion, neither of the validation checks at the start of the function are able to catch it: if (bufsize < sizeof(struct xfs_attrlist) || bufsize > XFS_XATTR_LIST_MAX) return -EINVAL; This means "bufsize" will trigger (WARN_ON_ONCE(size > INT_MAX)) in kvmalloc_node(). Fix this by changing the type from int to size_t. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org>
2021-12-21 20:38:19 +03:00
int xfs_ioc_attr_list(struct xfs_inode *dp, void __user *ubuf,
size_t bufsize, int flags,
struct xfs_attrlist_cursor __user *ucursor);
[XFS] Hook up compat XFS_IOC_ATTRMULTI_BY_HANDLE ioctl handler Add a compat handler for XFS_IOC_ATTRMULTI_BY_HANDLE Signed-off-by: Eric Sandeen <sandeen@sandeen.net> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
2008-11-26 06:20:15 +03:00
xfs: fix dentry aliasing issues in open_by_handle Open by handle just grabs an inode by handle and then creates itself a dentry for it. While this works for regular files it is horribly broken for directories, where the VFS locking relies on the fact that there is only just one single dentry for a given inode, and that these are always connected to the root of the filesystem so that it's locking algorithms work (see Documentations/filesystems/Locking) Remove all the existing open by handle code and replace it with a small wrapper around the exportfs code which deals with all these issues. At the same time we also make the checks for a valid handle strict enough to reject all not perfectly well formed handles - given that we never hand out others that's okay and simplifies the code. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <david@fromorbit.com>
2009-01-19 04:02:57 +03:00
extern struct dentry *
xfs_handle_to_dentry(
struct file *parfilp,
void __user *uhandle,
u32 hlen);
xfs: convert to fileattr Use the fileattr API to let the VFS handle locking, permission checking and conversion. Signed-off-by: Miklos Szeredi <mszeredi@redhat.com> Cc: Darrick J. Wong <djwong@kernel.org>
2021-04-07 15:36:43 +03:00
extern int
xfs_fileattr_get(
struct dentry *dentry,
struct fileattr *fa);
extern int
xfs_fileattr_set(
fs: port ->fileattr_set() to pass mnt_idmap Convert to struct mnt_idmap. Last cycle we merged the necessary infrastructure in 256c8aed2b42 ("fs: introduce dedicated idmap type for mounts"). This is just the conversion to struct mnt_idmap. Currently we still pass around the plain namespace that was attached to a mount. This is in general pretty convenient but it makes it easy to conflate namespaces that are relevant on the filesystem with namespaces that are relevent on the mount level. Especially for non-vfs developers without detailed knowledge in this area this can be a potential source for bugs. Once the conversion to struct mnt_idmap is done all helpers down to the really low-level helpers will take a struct mnt_idmap argument instead of two namespace arguments. This way it becomes impossible to conflate the two eliminating the possibility of any bugs. All of the vfs and all filesystems only operate on struct mnt_idmap. Acked-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Christian Brauner (Microsoft) <brauner@kernel.org>
2023-01-13 14:49:21 +03:00
struct mnt_idmap *idmap,
xfs: convert to fileattr Use the fileattr API to let the VFS handle locking, permission checking and conversion. Signed-off-by: Miklos Szeredi <mszeredi@redhat.com> Cc: Darrick J. Wong <djwong@kernel.org>
2021-04-07 15:36:43 +03:00
struct dentry *dentry,
struct fileattr *fa);
[XFS] fix compile on 32 bit systems The recent compat patches make xfs_file.c include xfs_ioctl32.h unconditional, which breaks the build on 32 bit systems which don't have the various compat defintions. Remove the include and move the defintion of xfs_file_compat_ioctl to xfs_ioctl.h so that we can avoid including all the compat defintions in xfs_file.c Signed-off-by: Christoph Hellwig <hch@lst.de> Tested-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
2008-12-03 15:55:34 +03:00
extern long
[XFS] add a FMODE flag to make XFS invisible I/O less hacky XFS has a mode called invisble I/O that doesn't update any of the timestamps. It's used for HSM-style applications and exposed through the nasty open by handle ioctl. Instead of doing directly assignment of file operations that set an internal flag for it add a new FMODE_NOCMTIME flag that we can check in the normal file operations. (addition of the generic VFS flag has been ACKed by Al as an interims solution) Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
2008-12-09 12:47:33 +03:00
xfs_file_ioctl(
struct file *filp,
[XFS] fix compile on 32 bit systems The recent compat patches make xfs_file.c include xfs_ioctl32.h unconditional, which breaks the build on 32 bit systems which don't have the various compat defintions. Remove the include and move the defintion of xfs_file_compat_ioctl to xfs_ioctl.h so that we can avoid including all the compat defintions in xfs_file.c Signed-off-by: Christoph Hellwig <hch@lst.de> Tested-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
2008-12-03 15:55:34 +03:00
unsigned int cmd,
[XFS] add a FMODE flag to make XFS invisible I/O less hacky XFS has a mode called invisble I/O that doesn't update any of the timestamps. It's used for HSM-style applications and exposed through the nasty open by handle ioctl. Instead of doing directly assignment of file operations that set an internal flag for it add a new FMODE_NOCMTIME flag that we can check in the normal file operations. (addition of the generic VFS flag has been ACKed by Al as an interims solution) Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
2008-12-09 12:47:33 +03:00
unsigned long p);
[XFS] fix compile on 32 bit systems The recent compat patches make xfs_file.c include xfs_ioctl32.h unconditional, which breaks the build on 32 bit systems which don't have the various compat defintions. Remove the include and move the defintion of xfs_file_compat_ioctl to xfs_ioctl.h so that we can avoid including all the compat defintions in xfs_file.c Signed-off-by: Christoph Hellwig <hch@lst.de> Tested-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
2008-12-03 15:55:34 +03:00
extern long
[XFS] add a FMODE flag to make XFS invisible I/O less hacky XFS has a mode called invisble I/O that doesn't update any of the timestamps. It's used for HSM-style applications and exposed through the nasty open by handle ioctl. Instead of doing directly assignment of file operations that set an internal flag for it add a new FMODE_NOCMTIME flag that we can check in the normal file operations. (addition of the generic VFS flag has been ACKed by Al as an interims solution) Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
2008-12-09 12:47:33 +03:00
xfs_file_compat_ioctl(
[XFS] fix compile on 32 bit systems The recent compat patches make xfs_file.c include xfs_ioctl32.h unconditional, which breaks the build on 32 bit systems which don't have the various compat defintions. Remove the include and move the defintion of xfs_file_compat_ioctl to xfs_ioctl.h so that we can avoid including all the compat defintions in xfs_file.c Signed-off-by: Christoph Hellwig <hch@lst.de> Tested-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
2008-12-03 15:55:34 +03:00
struct file *file,
unsigned int cmd,
unsigned long arg);
xfs: rename bulkstat functions Rename the bulkstat functions to 'fsbulkstat' so that they match the ioctl names. We will be introducing a new set of bulkstat/inumbers ioctls soon, and it will be important to keep the names straight. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Allison Collins <allison.henderson@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-04 06:36:26 +03:00
int xfs_fsbulkstat_one_fmt(struct xfs_ibulk *breq,
xfs: introduce new v5 bulkstat structure Introduce a new version of the in-core bulkstat structure that supports our new v5 format features. This structure also fills the gaps in the previous structure. We leave wiring up the ioctls for the next patch. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Allison Collins <allison.henderson@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-04 06:36:26 +03:00
const struct xfs_bulkstat *bstat);
xfs: introduce v5 inode group structure Introduce a new "v5" inode group structure that fixes the alignment and padding problems of the existing structure. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-04 06:36:27 +03:00
int xfs_fsinumbers_fmt(struct xfs_ibulk *breq, const struct xfs_inumbers *igrp);
xfs: convert bulkstat to new iwalk infrastructure Create a new ibulk structure incore to help us deal with bulk inode stat state tracking and then convert the bulkstat code to use the new iwalk iterator. This disentangles inode walking from bulk stat control for simpler code and enables us to isolate the formatter functions to the ioctl handling code. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
2019-07-02 19:39:40 +03:00
[XFS] Clean up some existing compat ioctl calls Create a new xfs_ioctl.h file which has prototypes for ioctl helpers that may be called in compat mode. Change several compat ioctl cases which are IOW to simply copy in the userspace argument, then call the common ioctl helper. This also fixes xfs_compat_ioc_fsgeometry_v1(), which had it backwards before; it copied in an (empty) arg, then copied out the native result, which probably corrupted userspace. It should be translating on the copyout. Also, a bit of formatting cleanup for consistency, and conversion of all error returns to use XFS_ERROR(). Signed-off-by: Eric Sandeen <sandeen@sandeen.net> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
2008-11-26 06:20:08 +03:00
#endif
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