From 2b5decd09e9f98c4e361f97f3e32d80164774f75 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Fri, 28 Nov 2008 14:23:36 +1100 Subject: [XFS] remove xfs_vfs.h The only thing left are the forced shutdown flags and freeze macros which fit into xfs_mount.h much better. Signed-off-by: Christoph Hellwig Reviewed-by: Dave Chinner Signed-off-by: Niv Sardi --- fs/xfs/linux-2.6/xfs_ioctl32.c | 1 - 1 file changed, 1 deletion(-) (limited to 'fs/xfs/linux-2.6/xfs_ioctl32.c') diff --git a/fs/xfs/linux-2.6/xfs_ioctl32.c b/fs/xfs/linux-2.6/xfs_ioctl32.c index a4b254eb43b2..6ce9c9c7cdde 100644 --- a/fs/xfs/linux-2.6/xfs_ioctl32.c +++ b/fs/xfs/linux-2.6/xfs_ioctl32.c @@ -36,7 +36,6 @@ #include "xfs_bmap_btree.h" #include "xfs_attr_sf.h" #include "xfs_dir2_sf.h" -#include "xfs_vfs.h" #include "xfs_vnode.h" #include "xfs_dinode.h" #include "xfs_inode.h" -- cgit v1.2.3 From ffae263a640b736a7206a0d7bd14ab44eb58cd28 Mon Sep 17 00:00:00 2001 From: "sandeen@sandeen.net" Date: Tue, 25 Nov 2008 21:20:07 -0600 Subject: [XFS] Move compat ioctl structs & numbers into xfs_ioctl32.h This makes the c file less cluttered and a bit more readable. Consistently name the ioctl number macros with "_32" and the compatibility stuctures with "_compat." Rename the helpers which simply copy in the arg with "_copyin" for easy identification. Finally, for a few of the existing helpers, modify them so that they directly call the native ioctl helper after userspace argument fixup. Signed-off-by: Eric Sandeen Reviewed-by: Christoph Hellwig Signed-off-by: Lachlan McIlroy --- fs/xfs/linux-2.6/xfs_ioctl32.c | 140 ++------------------------------------- fs/xfs/linux-2.6/xfs_ioctl32.h | 145 +++++++++++++++++++++++++++++++++++++++++ fs/xfs/xfs_fs.h | 4 -- 3 files changed, 150 insertions(+), 139 deletions(-) (limited to 'fs/xfs/linux-2.6/xfs_ioctl32.c') diff --git a/fs/xfs/linux-2.6/xfs_ioctl32.c b/fs/xfs/linux-2.6/xfs_ioctl32.c index 6ce9c9c7cdde..620bb2d6d26c 100644 --- a/fs/xfs/linux-2.6/xfs_ioctl32.c +++ b/fs/xfs/linux-2.6/xfs_ioctl32.c @@ -48,36 +48,12 @@ #define _NATIVE_IOC(cmd, type) \ _IOC(_IOC_DIR(cmd), _IOC_TYPE(cmd), _IOC_NR(cmd), sizeof(type)) -#if defined(CONFIG_IA64) || defined(CONFIG_X86_64) -#define BROKEN_X86_ALIGNMENT -#define _PACKED __attribute__((packed)) -/* on ia32 l_start is on a 32-bit boundary */ -typedef struct xfs_flock64_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 */ -} xfs_flock64_32_t; - -#define XFS_IOC_ALLOCSP_32 _IOW ('X', 10, struct xfs_flock64_32) -#define XFS_IOC_FREESP_32 _IOW ('X', 11, struct xfs_flock64_32) -#define XFS_IOC_ALLOCSP64_32 _IOW ('X', 36, struct xfs_flock64_32) -#define XFS_IOC_FREESP64_32 _IOW ('X', 37, struct xfs_flock64_32) -#define XFS_IOC_RESVSP_32 _IOW ('X', 40, struct xfs_flock64_32) -#define XFS_IOC_UNRESVSP_32 _IOW ('X', 41, struct xfs_flock64_32) -#define XFS_IOC_RESVSP64_32 _IOW ('X', 42, struct xfs_flock64_32) -#define XFS_IOC_UNRESVSP64_32 _IOW ('X', 43, struct xfs_flock64_32) - -/* just account for different alignment */ +#ifdef BROKEN_X86_ALIGNMENT STATIC unsigned long xfs_ioctl32_flock( unsigned long arg) { - xfs_flock64_32_t __user *p32 = (void __user *)arg; + compat_xfs_flock64_t __user *p32 = (void __user *)arg; xfs_flock64_t __user *p = compat_alloc_user_space(sizeof(*p)); if (copy_in_user(&p->l_type, &p32->l_type, sizeof(s16)) || @@ -92,32 +68,6 @@ xfs_ioctl32_flock( return (unsigned long)p; } -typedef struct compat_xfs_fsop_geom_v1 { - __u32 blocksize; /* filesystem (data) block size */ - __u32 rtextsize; /* realtime extent size */ - __u32 agblocks; /* fsblocks in an AG */ - __u32 agcount; /* number of allocation groups */ - __u32 logblocks; /* fsblocks in the log */ - __u32 sectsize; /* (data) sector size, bytes */ - __u32 inodesize; /* inode size in bytes */ - __u32 imaxpct; /* max allowed inode space(%) */ - __u64 datablocks; /* fsblocks in data subvolume */ - __u64 rtblocks; /* fsblocks in realtime subvol */ - __u64 rtextents; /* rt extents in realtime subvol*/ - __u64 logstart; /* starting fsblock of the log */ - unsigned char uuid[16]; /* unique id of the filesystem */ - __u32 sunit; /* stripe unit, fsblocks */ - __u32 swidth; /* stripe width, fsblocks */ - __s32 version; /* structure version */ - __u32 flags; /* superblock version flags */ - __u32 logsectsize; /* log sector size, bytes */ - __u32 rtsectsize; /* realtime sector size, bytes */ - __u32 dirblocksize; /* directory block size, bytes */ -} __attribute__((packed)) compat_xfs_fsop_geom_v1_t; - -#define XFS_IOC_FSGEOMETRY_V1_32 \ - _IOR ('X', 100, struct compat_xfs_fsop_geom_v1) - STATIC unsigned long xfs_ioctl32_geom_v1(unsigned long arg) { compat_xfs_fsop_geom_v1_t __user *p32 = (void __user *)arg; @@ -128,12 +78,6 @@ STATIC unsigned long xfs_ioctl32_geom_v1(unsigned long arg) return (unsigned long)p; } -typedef struct compat_xfs_inogrp { - __u64 xi_startino; /* starting inode number */ - __s32 xi_alloccount; /* # bits set in allocmask */ - __u64 xi_allocmask; /* mask of allocated inodes */ -} __attribute__((packed)) compat_xfs_inogrp_t; - STATIC int xfs_inumbers_fmt_compat( void __user *ubuffer, const xfs_inogrp_t *buffer, @@ -154,19 +98,11 @@ STATIC int xfs_inumbers_fmt_compat( } #else - #define xfs_inumbers_fmt_compat xfs_inumbers_fmt -#define _PACKED - #endif /* XFS_IOC_FSBULKSTAT and friends */ -typedef struct compat_xfs_bstime { - __s32 tv_sec; /* seconds */ - __s32 tv_nsec; /* and nanoseconds */ -} compat_xfs_bstime_t; - STATIC int xfs_bstime_store_compat( compat_xfs_bstime_t __user *p32, const xfs_bstime_t *p) @@ -180,30 +116,6 @@ STATIC int xfs_bstime_store_compat( return 0; } -typedef struct compat_xfs_bstat { - __u64 bs_ino; /* inode number */ - __u16 bs_mode; /* type and mode */ - __u16 bs_nlink; /* number of links */ - __u32 bs_uid; /* user id */ - __u32 bs_gid; /* group id */ - __u32 bs_rdev; /* device value */ - __s32 bs_blksize; /* block size */ - __s64 bs_size; /* file size */ - compat_xfs_bstime_t bs_atime; /* access time */ - compat_xfs_bstime_t bs_mtime; /* modify time */ - compat_xfs_bstime_t bs_ctime; /* inode change time */ - int64_t bs_blocks; /* number of blocks */ - __u32 bs_xflags; /* extended flags */ - __s32 bs_extsize; /* extent size */ - __s32 bs_extents; /* number of extents */ - __u32 bs_gen; /* generation count */ - __u16 bs_projid; /* project id */ - unsigned char bs_pad[14]; /* pad space, unused */ - __u32 bs_dmevmask; /* DMIG event mask */ - __u16 bs_dmstate; /* DMIG state info */ - __u16 bs_aextents; /* attribute number of extents */ -} _PACKED compat_xfs_bstat_t; - STATIC int xfs_bulkstat_one_fmt_compat( void __user *ubuffer, const xfs_bstat_t *buffer) @@ -234,22 +146,6 @@ STATIC int xfs_bulkstat_one_fmt_compat( return sizeof(*p32); } - - -typedef struct compat_xfs_fsop_bulkreq { - compat_uptr_t lastip; /* last inode # pointer */ - __s32 icount; /* count of entries in buffer */ - compat_uptr_t ubuffer; /* user buffer for inode desc. */ - compat_uptr_t ocount; /* output count pointer */ -} compat_xfs_fsop_bulkreq_t; - -#define XFS_IOC_FSBULKSTAT_32 \ - _IOWR('X', 101, struct compat_xfs_fsop_bulkreq) -#define XFS_IOC_FSBULKSTAT_SINGLE_32 \ - _IOWR('X', 102, struct compat_xfs_fsop_bulkreq) -#define XFS_IOC_FSINUMBERS_32 \ - _IOWR('X', 103, struct compat_xfs_fsop_bulkreq) - /* copied from xfs_ioctl.c */ STATIC int xfs_ioc_bulkstat_compat( @@ -320,29 +216,6 @@ xfs_ioc_bulkstat_compat( return 0; } - - -typedef struct compat_xfs_fsop_handlereq { - __u32 fd; /* fd for FD_TO_HANDLE */ - compat_uptr_t path; /* user pathname */ - __u32 oflags; /* open flags */ - compat_uptr_t ihandle; /* user supplied handle */ - __u32 ihandlen; /* user supplied length */ - compat_uptr_t ohandle; /* user buffer for handle */ - compat_uptr_t ohandlen; /* user buffer length */ -} compat_xfs_fsop_handlereq_t; - -#define XFS_IOC_PATH_TO_FSHANDLE_32 \ - _IOWR('X', 104, struct compat_xfs_fsop_handlereq) -#define XFS_IOC_PATH_TO_HANDLE_32 \ - _IOWR('X', 105, struct compat_xfs_fsop_handlereq) -#define XFS_IOC_FD_TO_HANDLE_32 \ - _IOWR('X', 106, struct compat_xfs_fsop_handlereq) -#define XFS_IOC_OPEN_BY_HANDLE_32 \ - _IOWR('X', 107, struct compat_xfs_fsop_handlereq) -#define XFS_IOC_READLINK_BY_HANDLE_32 \ - _IOWR('X', 108, struct compat_xfs_fsop_handlereq) - STATIC unsigned long xfs_ioctl32_fshandle(unsigned long arg) { compat_xfs_fsop_handlereq_t __user *p32 = (void __user *)arg; @@ -365,7 +238,6 @@ STATIC unsigned long xfs_ioctl32_fshandle(unsigned long arg) return (unsigned long)p; } - STATIC long xfs_compat_ioctl( int mode, @@ -404,9 +276,9 @@ xfs_compat_ioctl( case XFS_IOC_ERROR_CLEARALL: break; - case XFS_IOC32_GETXFLAGS: - case XFS_IOC32_SETXFLAGS: - case XFS_IOC32_GETVERSION: + case XFS_IOC_GETXFLAGS_32: + case XFS_IOC_SETXFLAGS_32: + case XFS_IOC_GETVERSION_32: cmd = _NATIVE_IOC(cmd, long); break; #ifdef BROKEN_X86_ALIGNMENT @@ -426,7 +298,6 @@ xfs_compat_ioctl( arg = xfs_ioctl32_geom_v1(arg); cmd = _NATIVE_IOC(cmd, struct xfs_fsop_geom_v1); break; - #else /* These are handled fine if no alignment issues */ case XFS_IOC_ALLOCSP: case XFS_IOC_FREESP: @@ -464,7 +335,6 @@ xfs_compat_ioctl( error = xfs_ioctl(XFS_I(inode), file, mode, cmd, (void __user *)arg); xfs_iflags_set(XFS_I(inode), XFS_IMODIFIED); - return error; } diff --git a/fs/xfs/linux-2.6/xfs_ioctl32.h b/fs/xfs/linux-2.6/xfs_ioctl32.h index 02de6e62ee37..003a10e695be 100644 --- a/fs/xfs/linux-2.6/xfs_ioctl32.h +++ b/fs/xfs/linux-2.6/xfs_ioctl32.h @@ -18,7 +18,152 @@ #ifndef __XFS_IOCTL32_H__ #define __XFS_IOCTL32_H__ +#include + extern long xfs_file_compat_ioctl(struct file *, unsigned, unsigned long); extern long xfs_file_compat_invis_ioctl(struct file *, unsigned, unsigned long); +/* + * on 32-bit arches, ioctl argument structures may have different sizes + * and/or alignment. We define compat structures which match the + * 32-bit sizes/alignments here, and their associated ioctl numbers. + * + * xfs_ioctl32.c contains routines to copy these structures in and out. + */ + +/* stock kernel-level ioctls we support */ +#define XFS_IOC_GETXFLAGS_32 FS_IOC32_GETFLAGS +#define XFS_IOC_SETXFLAGS_32 FS_IOC32_SETFLAGS +#define XFS_IOC_GETVERSION_32 FS_IOC32_GETVERSION + +/* + * On intel, even if sizes match, alignment and/or padding may differ. + */ +#if defined(CONFIG_IA64) || defined(CONFIG_X86_64) +#define BROKEN_X86_ALIGNMENT +#define __compat_packed __attribute__((packed)) +#else +#define __compat_packed +#endif + +typedef struct compat_xfs_bstime { + compat_time_t tv_sec; /* seconds */ + __s32 tv_nsec; /* and nanoseconds */ +} compat_xfs_bstime_t; + +typedef struct compat_xfs_bstat { + __u64 bs_ino; /* inode number */ + __u16 bs_mode; /* type and mode */ + __u16 bs_nlink; /* number of links */ + __u32 bs_uid; /* user id */ + __u32 bs_gid; /* group id */ + __u32 bs_rdev; /* device value */ + __s32 bs_blksize; /* block size */ + __s64 bs_size; /* file size */ + compat_xfs_bstime_t bs_atime; /* access time */ + compat_xfs_bstime_t bs_mtime; /* modify time */ + compat_xfs_bstime_t bs_ctime; /* inode change time */ + int64_t bs_blocks; /* number of blocks */ + __u32 bs_xflags; /* extended flags */ + __s32 bs_extsize; /* extent size */ + __s32 bs_extents; /* number of extents */ + __u32 bs_gen; /* generation count */ + __u16 bs_projid; /* project id */ + unsigned char bs_pad[14]; /* pad space, unused */ + __u32 bs_dmevmask; /* DMIG event mask */ + __u16 bs_dmstate; /* DMIG state info */ + __u16 bs_aextents; /* attribute number of extents */ +} __compat_packed compat_xfs_bstat_t; + +typedef struct compat_xfs_fsop_bulkreq { + compat_uptr_t lastip; /* last inode # pointer */ + __s32 icount; /* count of entries in buffer */ + compat_uptr_t ubuffer; /* user buffer for inode desc. */ + compat_uptr_t ocount; /* output count pointer */ +} compat_xfs_fsop_bulkreq_t; + +#define XFS_IOC_FSBULKSTAT_32 \ + _IOWR('X', 101, struct compat_xfs_fsop_bulkreq) +#define XFS_IOC_FSBULKSTAT_SINGLE_32 \ + _IOWR('X', 102, struct compat_xfs_fsop_bulkreq) +#define XFS_IOC_FSINUMBERS_32 \ + _IOWR('X', 103, struct compat_xfs_fsop_bulkreq) + +typedef struct compat_xfs_fsop_handlereq { + __u32 fd; /* fd for FD_TO_HANDLE */ + compat_uptr_t path; /* user pathname */ + __u32 oflags; /* open flags */ + compat_uptr_t ihandle; /* user supplied handle */ + __u32 ihandlen; /* user supplied length */ + compat_uptr_t ohandle; /* user buffer for handle */ + compat_uptr_t ohandlen; /* user buffer length */ +} compat_xfs_fsop_handlereq_t; + +#define XFS_IOC_PATH_TO_FSHANDLE_32 \ + _IOWR('X', 104, struct compat_xfs_fsop_handlereq) +#define XFS_IOC_PATH_TO_HANDLE_32 \ + _IOWR('X', 105, struct compat_xfs_fsop_handlereq) +#define XFS_IOC_FD_TO_HANDLE_32 \ + _IOWR('X', 106, struct compat_xfs_fsop_handlereq) +#define XFS_IOC_OPEN_BY_HANDLE_32 \ + _IOWR('X', 107, struct compat_xfs_fsop_handlereq) +#define XFS_IOC_READLINK_BY_HANDLE_32 \ + _IOWR('X', 108, struct compat_xfs_fsop_handlereq) + +#ifdef BROKEN_X86_ALIGNMENT +/* on ia32 l_start is on a 32-bit boundary */ +typedef struct compat_xfs_flock64 { + __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 */ +} compat_xfs_flock64_t; + +#define XFS_IOC_ALLOCSP_32 _IOW('X', 10, struct compat_xfs_flock64) +#define XFS_IOC_FREESP_32 _IOW('X', 11, struct compat_xfs_flock64) +#define XFS_IOC_ALLOCSP64_32 _IOW('X', 36, struct compat_xfs_flock64) +#define XFS_IOC_FREESP64_32 _IOW('X', 37, struct compat_xfs_flock64) +#define XFS_IOC_RESVSP_32 _IOW('X', 40, struct compat_xfs_flock64) +#define XFS_IOC_UNRESVSP_32 _IOW('X', 41, struct compat_xfs_flock64) +#define XFS_IOC_RESVSP64_32 _IOW('X', 42, struct compat_xfs_flock64) +#define XFS_IOC_UNRESVSP64_32 _IOW('X', 43, struct compat_xfs_flock64) + +typedef struct compat_xfs_fsop_geom_v1 { + __u32 blocksize; /* filesystem (data) block size */ + __u32 rtextsize; /* realtime extent size */ + __u32 agblocks; /* fsblocks in an AG */ + __u32 agcount; /* number of allocation groups */ + __u32 logblocks; /* fsblocks in the log */ + __u32 sectsize; /* (data) sector size, bytes */ + __u32 inodesize; /* inode size in bytes */ + __u32 imaxpct; /* max allowed inode space(%) */ + __u64 datablocks; /* fsblocks in data subvolume */ + __u64 rtblocks; /* fsblocks in realtime subvol */ + __u64 rtextents; /* rt extents in realtime subvol*/ + __u64 logstart; /* starting fsblock of the log */ + unsigned char uuid[16]; /* unique id of the filesystem */ + __u32 sunit; /* stripe unit, fsblocks */ + __u32 swidth; /* stripe width, fsblocks */ + __s32 version; /* structure version */ + __u32 flags; /* superblock version flags */ + __u32 logsectsize; /* log sector size, bytes */ + __u32 rtsectsize; /* realtime sector size, bytes */ + __u32 dirblocksize; /* directory block size, bytes */ +} __attribute__((packed)) compat_xfs_fsop_geom_v1_t; + +#define XFS_IOC_FSGEOMETRY_V1_32 \ + _IOR('X', 100, struct compat_xfs_fsop_geom_v1) + +typedef struct compat_xfs_inogrp { + __u64 xi_startino; /* starting inode number */ + __s32 xi_alloccount; /* # bits set in allocmask */ + __u64 xi_allocmask; /* mask of allocated inodes */ +} __attribute__((packed)) compat_xfs_inogrp_t; + +#endif /* BROKEN_X86_ALIGNMENT */ + #endif /* __XFS_IOCTL32_H__ */ diff --git a/fs/xfs/xfs_fs.h b/fs/xfs/xfs_fs.h index 4ae03bae992f..589c41c38446 100644 --- a/fs/xfs/xfs_fs.h +++ b/fs/xfs/xfs_fs.h @@ -418,10 +418,6 @@ typedef struct xfs_handle { #define XFS_IOC_GETXFLAGS FS_IOC_GETFLAGS #define XFS_IOC_SETXFLAGS FS_IOC_SETFLAGS #define XFS_IOC_GETVERSION FS_IOC_GETVERSION -/* 32-bit compat counterparts */ -#define XFS_IOC32_GETXFLAGS FS_IOC32_GETFLAGS -#define XFS_IOC32_SETXFLAGS FS_IOC32_SETFLAGS -#define XFS_IOC32_GETVERSION FS_IOC32_GETVERSION /* * ioctl commands that replace IRIX fcntl()'s -- cgit v1.2.3 From d5547f9feea459dfc9e7313bd1d561394e2c129f Mon Sep 17 00:00:00 2001 From: "sandeen@sandeen.net" Date: Tue, 25 Nov 2008 21:20:08 -0600 Subject: [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 Reviewed-by: Christoph Hellwig Signed-off-by: Lachlan McIlroy --- fs/xfs/linux-2.6/xfs_ioctl.c | 8 +- fs/xfs/linux-2.6/xfs_ioctl.h | 47 ++++++++++ fs/xfs/linux-2.6/xfs_ioctl32.c | 207 ++++++++++++++++++++++++----------------- 3 files changed, 171 insertions(+), 91 deletions(-) create mode 100644 fs/xfs/linux-2.6/xfs_ioctl.h (limited to 'fs/xfs/linux-2.6/xfs_ioctl32.c') diff --git a/fs/xfs/linux-2.6/xfs_ioctl.c b/fs/xfs/linux-2.6/xfs_ioctl.c index 03c55b8fa373..498d3e15843b 100644 --- a/fs/xfs/linux-2.6/xfs_ioctl.c +++ b/fs/xfs/linux-2.6/xfs_ioctl.c @@ -68,7 +68,7 @@ * XFS_IOC_PATH_TO_HANDLE * returns full handle for a path */ -STATIC int +int xfs_find_handle( unsigned int cmd, xfs_fsop_handlereq_t *hreq) @@ -245,7 +245,7 @@ xfs_vget_fsop_handlereq( return 0; } -STATIC int +int xfs_open_by_handle( xfs_mount_t *mp, xfs_fsop_handlereq_t *hreq, @@ -355,7 +355,7 @@ do_readlink( } -STATIC int +int xfs_readlink_by_handle( xfs_mount_t *mp, xfs_fsop_handlereq_t *hreq, @@ -651,7 +651,7 @@ xfs_attrmulti_by_handle( return -error; } -STATIC int +int xfs_ioc_space( struct xfs_inode *ip, struct inode *inode, diff --git a/fs/xfs/linux-2.6/xfs_ioctl.h b/fs/xfs/linux-2.6/xfs_ioctl.h new file mode 100644 index 000000000000..2df849f49a5e --- /dev/null +++ b/fs/xfs/linux-2.6/xfs_ioctl.h @@ -0,0 +1,47 @@ +/* + * Copyright (c) 2008 Silicon Graphics, Inc. + * All Rights Reserved. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it would be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ +#ifndef __XFS_IOCTL_H__ +#define __XFS_IOCTL_H__ + +extern int +xfs_ioc_space( + struct xfs_inode *ip, + struct inode *inode, + struct file *filp, + int ioflags, + unsigned int cmd, + xfs_flock64_t *bf); + +extern int +xfs_find_handle( + unsigned int cmd, + xfs_fsop_handlereq_t *hreq); + +extern int +xfs_open_by_handle( + xfs_mount_t *mp, + xfs_fsop_handlereq_t *hreq, + struct file *parfilp, + struct inode *parinode); + +extern int +xfs_readlink_by_handle( + xfs_mount_t *mp, + xfs_fsop_handlereq_t *hreq, + struct inode *parinode); +#endif diff --git a/fs/xfs/linux-2.6/xfs_ioctl32.c b/fs/xfs/linux-2.6/xfs_ioctl32.c index 620bb2d6d26c..35edc054fb99 100644 --- a/fs/xfs/linux-2.6/xfs_ioctl32.c +++ b/fs/xfs/linux-2.6/xfs_ioctl32.c @@ -43,55 +43,62 @@ #include "xfs_error.h" #include "xfs_dfrag.h" #include "xfs_vnodeops.h" +#include "xfs_fsops.h" +#include "xfs_ioctl.h" #include "xfs_ioctl32.h" #define _NATIVE_IOC(cmd, type) \ _IOC(_IOC_DIR(cmd), _IOC_TYPE(cmd), _IOC_NR(cmd), sizeof(type)) #ifdef BROKEN_X86_ALIGNMENT -STATIC unsigned long -xfs_ioctl32_flock( - unsigned long arg) +STATIC int +xfs_compat_flock64_copyin( + xfs_flock64_t *bf, + compat_xfs_flock64_t __user *arg32) { - compat_xfs_flock64_t __user *p32 = (void __user *)arg; - xfs_flock64_t __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 (unsigned long)p; + if (get_user(bf->l_type, &arg32->l_type) || + get_user(bf->l_whence, &arg32->l_whence) || + get_user(bf->l_start, &arg32->l_start) || + get_user(bf->l_len, &arg32->l_len) || + get_user(bf->l_sysid, &arg32->l_sysid) || + get_user(bf->l_pid, &arg32->l_pid) || + copy_from_user(bf->l_pad, &arg32->l_pad, 4*sizeof(u32))) + return -XFS_ERROR(EFAULT); + return 0; } -STATIC unsigned long xfs_ioctl32_geom_v1(unsigned long arg) +STATIC int +xfs_compat_ioc_fsgeometry_v1( + struct xfs_mount *mp, + compat_xfs_fsop_geom_v1_t __user *arg32) { - compat_xfs_fsop_geom_v1_t __user *p32 = (void __user *)arg; - xfs_fsop_geom_v1_t __user *p = compat_alloc_user_space(sizeof(*p)); + xfs_fsop_geom_t fsgeo; + int error; - if (copy_in_user(p, p32, sizeof(*p32))) - return -EFAULT; - return (unsigned long)p; + error = xfs_fs_geometry(mp, &fsgeo, 3); + if (error) + return -error; + /* The 32-bit variant simply has some padding at the end */ + if (copy_to_user(arg32, &fsgeo, sizeof(struct compat_xfs_fsop_geom_v1))) + return -XFS_ERROR(EFAULT); + return 0; } -STATIC int xfs_inumbers_fmt_compat( - void __user *ubuffer, - const xfs_inogrp_t *buffer, - long count, - long *written) +STATIC int +xfs_inumbers_fmt_compat( + void __user *ubuffer, + const xfs_inogrp_t *buffer, + long count, + long *written) { - compat_xfs_inogrp_t __user *p32 = ubuffer; - long i; + compat_xfs_inogrp_t __user *p32 = ubuffer; + long i; for (i = 0; i < count; i++) { if (put_user(buffer[i].xi_startino, &p32[i].xi_startino) || put_user(buffer[i].xi_alloccount, &p32[i].xi_alloccount) || put_user(buffer[i].xi_allocmask, &p32[i].xi_allocmask)) - return -EFAULT; + return -XFS_ERROR(EFAULT); } *written = count * sizeof(*p32); return 0; @@ -103,24 +110,26 @@ STATIC int xfs_inumbers_fmt_compat( /* XFS_IOC_FSBULKSTAT and friends */ -STATIC int xfs_bstime_store_compat( - compat_xfs_bstime_t __user *p32, - const xfs_bstime_t *p) +STATIC int +xfs_bstime_store_compat( + compat_xfs_bstime_t __user *p32, + const xfs_bstime_t *p) { - __s32 sec32; + __s32 sec32; sec32 = p->tv_sec; if (put_user(sec32, &p32->tv_sec) || put_user(p->tv_nsec, &p32->tv_nsec)) - return -EFAULT; + return -XFS_ERROR(EFAULT); return 0; } -STATIC int xfs_bulkstat_one_fmt_compat( +STATIC int +xfs_bulkstat_one_fmt_compat( void __user *ubuffer, const xfs_bstat_t *buffer) { - compat_xfs_bstat_t __user *p32 = ubuffer; + compat_xfs_bstat_t __user *p32 = ubuffer; if (put_user(buffer->bs_ino, &p32->bs_ino) || put_user(buffer->bs_mode, &p32->bs_mode) || @@ -142,7 +151,7 @@ STATIC int xfs_bulkstat_one_fmt_compat( put_user(buffer->bs_dmevmask, &p32->bs_dmevmask) || put_user(buffer->bs_dmstate, &p32->bs_dmstate) || put_user(buffer->bs_aextents, &p32->bs_aextents)) - return -EFAULT; + return -XFS_ERROR(EFAULT); return sizeof(*p32); } @@ -165,20 +174,20 @@ xfs_ioc_bulkstat_compat( /* should be called again (unused here, but used in dmapi) */ if (!capable(CAP_SYS_ADMIN)) - return -EPERM; + return -XFS_ERROR(EPERM); if (XFS_FORCED_SHUTDOWN(mp)) return -XFS_ERROR(EIO); if (get_user(addr, &p32->lastip)) - return -EFAULT; + return -XFS_ERROR(EFAULT); bulkreq.lastip = compat_ptr(addr); if (get_user(bulkreq.icount, &p32->icount) || get_user(addr, &p32->ubuffer)) - return -EFAULT; + return -XFS_ERROR(EFAULT); bulkreq.ubuffer = compat_ptr(addr); if (get_user(addr, &p32->ocount)) - return -EFAULT; + return -XFS_ERROR(EFAULT); bulkreq.ocount = compat_ptr(addr); if (copy_from_user(&inlast, bulkreq.lastip, sizeof(__s64))) @@ -216,38 +225,40 @@ xfs_ioc_bulkstat_compat( return 0; } -STATIC unsigned long xfs_ioctl32_fshandle(unsigned long arg) +STATIC int +xfs_compat_handlereq_copyin( + xfs_fsop_handlereq_t *hreq, + compat_xfs_fsop_handlereq_t __user *arg32) { - compat_xfs_fsop_handlereq_t __user *p32 = (void __user *)arg; - xfs_fsop_handlereq_t __user *p = compat_alloc_user_space(sizeof(*p)); - u32 addr; - - if (copy_in_user(&p->fd, &p32->fd, sizeof(__u32)) || - get_user(addr, &p32->path) || - put_user(compat_ptr(addr), &p->path) || - copy_in_user(&p->oflags, &p32->oflags, sizeof(__u32)) || - get_user(addr, &p32->ihandle) || - put_user(compat_ptr(addr), &p->ihandle) || - copy_in_user(&p->ihandlen, &p32->ihandlen, sizeof(__u32)) || - get_user(addr, &p32->ohandle) || - put_user(compat_ptr(addr), &p->ohandle) || - get_user(addr, &p32->ohandlen) || - put_user(compat_ptr(addr), &p->ohandlen)) - return -EFAULT; - - return (unsigned long)p; + compat_xfs_fsop_handlereq_t hreq32; + + if (copy_from_user(&hreq32, arg32, sizeof(compat_xfs_fsop_handlereq_t))) + return -XFS_ERROR(EFAULT); + + hreq->fd = hreq32.fd; + hreq->path = compat_ptr(hreq32.path); + hreq->oflags = hreq32.oflags; + hreq->ihandle = compat_ptr(hreq32.ihandle); + hreq->ihandlen = hreq32.ihandlen; + hreq->ohandle = compat_ptr(hreq32.ohandle); + hreq->ohandlen = compat_ptr(hreq32.ohandlen); + + return 0; } STATIC long xfs_compat_ioctl( - int mode, - struct file *file, + xfs_inode_t *ip, + struct file *filp, + int ioflags, unsigned cmd, - unsigned long arg) + void __user *arg) { - struct inode *inode = file->f_path.dentry->d_inode; + struct inode *inode = filp->f_path.dentry->d_inode; + xfs_mount_t *mp = ip->i_mount; int error; + xfs_itrace_entry(XFS_I(inode)); switch (cmd) { case XFS_IOC_DIOINFO: case XFS_IOC_FSGEOMETRY: @@ -290,14 +301,16 @@ xfs_compat_ioctl( case XFS_IOC_RESVSP_32: case XFS_IOC_UNRESVSP_32: case XFS_IOC_RESVSP64_32: - case XFS_IOC_UNRESVSP64_32: - arg = xfs_ioctl32_flock(arg); + case XFS_IOC_UNRESVSP64_32: { + struct xfs_flock64 bf; + + if (xfs_compat_flock64_copyin(&bf, arg)) + return -XFS_ERROR(EFAULT); cmd = _NATIVE_IOC(cmd, struct xfs_flock64); - break; + return xfs_ioc_space(ip, inode, filp, ioflags, cmd, &bf); + } case XFS_IOC_FSGEOMETRY_V1_32: - arg = xfs_ioctl32_geom_v1(arg); - cmd = _NATIVE_IOC(cmd, struct xfs_fsop_geom_v1); - break; + return xfs_compat_ioc_fsgeometry_v1(mp, arg); #else /* These are handled fine if no alignment issues */ case XFS_IOC_ALLOCSP: case XFS_IOC_FREESP: @@ -323,35 +336,55 @@ xfs_compat_ioctl( cmd, (void __user*)arg); case XFS_IOC_FD_TO_HANDLE_32: case XFS_IOC_PATH_TO_HANDLE_32: - case XFS_IOC_PATH_TO_FSHANDLE_32: - case XFS_IOC_OPEN_BY_HANDLE_32: - case XFS_IOC_READLINK_BY_HANDLE_32: - arg = xfs_ioctl32_fshandle(arg); + case XFS_IOC_PATH_TO_FSHANDLE_32: { + struct xfs_fsop_handlereq hreq; + + if (xfs_compat_handlereq_copyin(&hreq, arg)) + return -XFS_ERROR(EFAULT); cmd = _NATIVE_IOC(cmd, struct xfs_fsop_handlereq); - break; + return xfs_find_handle(cmd, &hreq); + } + case XFS_IOC_OPEN_BY_HANDLE_32: { + struct xfs_fsop_handlereq hreq; + + if (xfs_compat_handlereq_copyin(&hreq, arg)) + return -XFS_ERROR(EFAULT); + return xfs_open_by_handle(mp, &hreq, filp, inode); + } + case XFS_IOC_READLINK_BY_HANDLE_32: { + struct xfs_fsop_handlereq hreq; + + if (xfs_compat_handlereq_copyin(&hreq, arg)) + return -XFS_ERROR(EFAULT); + return xfs_readlink_by_handle(mp, &hreq, inode); + } default: - return -ENOIOCTLCMD; + return -XFS_ERROR(ENOIOCTLCMD); } - error = xfs_ioctl(XFS_I(inode), file, mode, cmd, (void __user *)arg); - xfs_iflags_set(XFS_I(inode), XFS_IMODIFIED); + error = xfs_ioctl(ip, filp, ioflags, cmd, arg); return error; } long xfs_file_compat_ioctl( - struct file *file, - unsigned cmd, - unsigned long arg) + struct file *filp, + unsigned int cmd, + unsigned long p) { - return xfs_compat_ioctl(0, file, cmd, arg); + struct inode *inode = filp->f_path.dentry->d_inode; + + return xfs_compat_ioctl(XFS_I(inode), filp, 0, cmd, (void __user *)p); } long xfs_file_compat_invis_ioctl( - struct file *file, - unsigned cmd, - unsigned long arg) + struct file *filp, + unsigned int cmd, + unsigned long p) { - return xfs_compat_ioctl(IO_INVIS, file, cmd, arg); + struct inode *inode = filp->f_path.dentry->d_inode; + + return xfs_compat_ioctl(XFS_I(inode), filp, IO_INVIS, cmd, + (void __user *)p); } -- cgit v1.2.3 From e94fc4a43e5c39f689e83caf6d2f0939081f5e6b Mon Sep 17 00:00:00 2001 From: "sandeen@sandeen.net" Date: Tue, 25 Nov 2008 21:20:09 -0600 Subject: [XFS] Add compat handlers for swapext ioctl The big hitter here was the bstat field, which contains different sized time_t on 32 vs. 64 bit. Add a copyin function to translate the 32-bit arg to 64-bit, and call the swapext ioctl helper. Signed-off-by: Eric Sandeen Reviewed-by: Christoph Hellwig Signed-off-by: Lachlan McIlroy --- fs/xfs/linux-2.6/xfs_ioctl32.c | 61 ++++++++++++++++++++++++++++++++++++++---- fs/xfs/linux-2.6/xfs_ioctl32.h | 13 +++++++++ 2 files changed, 69 insertions(+), 5 deletions(-) (limited to 'fs/xfs/linux-2.6/xfs_ioctl32.c') diff --git a/fs/xfs/linux-2.6/xfs_ioctl32.c b/fs/xfs/linux-2.6/xfs_ioctl32.c index 35edc054fb99..132f3dd2c7e8 100644 --- a/fs/xfs/linux-2.6/xfs_ioctl32.c +++ b/fs/xfs/linux-2.6/xfs_ioctl32.c @@ -108,6 +108,50 @@ xfs_inumbers_fmt_compat( #define xfs_inumbers_fmt_compat xfs_inumbers_fmt #endif +STATIC int +xfs_ioctl32_bstime_copyin( + xfs_bstime_t *bstime, + compat_xfs_bstime_t __user *bstime32) +{ + compat_time_t sec32; /* tv_sec differs on 64 vs. 32 */ + + if (get_user(sec32, &bstime32->tv_sec) || + get_user(bstime->tv_nsec, &bstime32->tv_nsec)) + return -XFS_ERROR(EFAULT); + bstime->tv_sec = sec32; + return 0; +} + +/* xfs_bstat_t has differing alignment on intel, & bstime_t sizes everywhere */ +STATIC int +xfs_ioctl32_bstat_copyin( + xfs_bstat_t *bstat, + compat_xfs_bstat_t __user *bstat32) +{ + if (get_user(bstat->bs_ino, &bstat32->bs_ino) || + get_user(bstat->bs_mode, &bstat32->bs_mode) || + get_user(bstat->bs_nlink, &bstat32->bs_nlink) || + get_user(bstat->bs_uid, &bstat32->bs_uid) || + get_user(bstat->bs_gid, &bstat32->bs_gid) || + get_user(bstat->bs_rdev, &bstat32->bs_rdev) || + get_user(bstat->bs_blksize, &bstat32->bs_blksize) || + get_user(bstat->bs_size, &bstat32->bs_size) || + xfs_ioctl32_bstime_copyin(&bstat->bs_atime, &bstat32->bs_atime) || + xfs_ioctl32_bstime_copyin(&bstat->bs_mtime, &bstat32->bs_mtime) || + xfs_ioctl32_bstime_copyin(&bstat->bs_ctime, &bstat32->bs_ctime) || + get_user(bstat->bs_blocks, &bstat32->bs_size) || + get_user(bstat->bs_xflags, &bstat32->bs_size) || + get_user(bstat->bs_extsize, &bstat32->bs_extsize) || + get_user(bstat->bs_extents, &bstat32->bs_extents) || + get_user(bstat->bs_gen, &bstat32->bs_gen) || + get_user(bstat->bs_projid, &bstat32->bs_projid) || + get_user(bstat->bs_dmevmask, &bstat32->bs_dmevmask) || + get_user(bstat->bs_dmstate, &bstat32->bs_dmstate) || + get_user(bstat->bs_aextents, &bstat32->bs_aextents)) + return -XFS_ERROR(EFAULT); + return 0; +} + /* XFS_IOC_FSBULKSTAT and friends */ STATIC int @@ -292,6 +336,18 @@ xfs_compat_ioctl( case XFS_IOC_GETVERSION_32: cmd = _NATIVE_IOC(cmd, long); break; + case XFS_IOC_SWAPEXT: { + struct xfs_swapext sxp; + struct compat_xfs_swapext __user *sxu = arg; + + /* Bulk copy in up to the sx_stat field, then grab bstat */ + if (copy_from_user(&sxp, sxu, + offsetof(xfs_swapext_t, sx_stat)) || + xfs_ioctl32_bstat_copyin(&sxp.sx_stat, &sxu->sx_stat)) + return -XFS_ERROR(EFAULT); + error = xfs_swapext(&sxp); + return -error; + } #ifdef BROKEN_X86_ALIGNMENT /* xfs_flock_t has wrong u32 vs u64 alignment */ case XFS_IOC_ALLOCSP_32: @@ -322,11 +378,6 @@ xfs_compat_ioctl( case XFS_IOC_UNRESVSP64: case XFS_IOC_FSGEOMETRY_V1: break; - - /* xfs_bstat_t still has wrong u32 vs u64 alignment */ - case XFS_IOC_SWAPEXT: - break; - #endif case XFS_IOC_FSBULKSTAT_32: case XFS_IOC_FSBULKSTAT_SINGLE_32: diff --git a/fs/xfs/linux-2.6/xfs_ioctl32.h b/fs/xfs/linux-2.6/xfs_ioctl32.h index 003a10e695be..bf08ab12a6f8 100644 --- a/fs/xfs/linux-2.6/xfs_ioctl32.h +++ b/fs/xfs/linux-2.6/xfs_ioctl32.h @@ -110,6 +110,19 @@ typedef struct compat_xfs_fsop_handlereq { #define XFS_IOC_READLINK_BY_HANDLE_32 \ _IOWR('X', 108, struct compat_xfs_fsop_handlereq) +/* The bstat field in the swapext struct needs translation */ +typedef struct compat_xfs_swapext { + __int64_t sx_version; /* version */ + __int64_t sx_fdtarget; /* fd of target file */ + __int64_t sx_fdtmp; /* fd of tmp file */ + xfs_off_t sx_offset; /* offset into file */ + xfs_off_t sx_length; /* leng from offset */ + char sx_pad[16]; /* pad space, unused */ + compat_xfs_bstat_t sx_stat; /* stat of target b4 copy */ +} __compat_packed compat_xfs_swapext_t; + +#define XFS_IOC_SWAPEXT_32 _IOWR('X', 109, struct compat_xfs_swapext) + #ifdef BROKEN_X86_ALIGNMENT /* on ia32 l_start is on a 32-bit boundary */ typedef struct compat_xfs_flock64 { -- cgit v1.2.3 From 471d59103167c84f17b9bcfee22ed10b44ff206e Mon Sep 17 00:00:00 2001 From: "sandeen@sandeen.net" Date: Tue, 25 Nov 2008 21:20:10 -0600 Subject: [XFS] Add compat handlers for data & rt growfs ioctls The args for XFS_IOC_FSGROWFSDATA and XFS_IOC_FSGROWFSRTA have padding on the end on intel, so add arg copyin functions, and then just call the growfs ioctl helpers. Signed-off-by: Eric Sandeen Reviewed-by: Christoph Hellwig Signed-off-by: Lachlan McIlroy --- fs/xfs/linux-2.6/xfs_ioctl32.c | 40 ++++++++++++++++++++++++++++++++++++++++ fs/xfs/linux-2.6/xfs_ioctl32.h | 14 ++++++++++++++ 2 files changed, 54 insertions(+) (limited to 'fs/xfs/linux-2.6/xfs_ioctl32.c') diff --git a/fs/xfs/linux-2.6/xfs_ioctl32.c b/fs/xfs/linux-2.6/xfs_ioctl32.c index 132f3dd2c7e8..d1ac5d5c009b 100644 --- a/fs/xfs/linux-2.6/xfs_ioctl32.c +++ b/fs/xfs/linux-2.6/xfs_ioctl32.c @@ -44,6 +44,8 @@ #include "xfs_dfrag.h" #include "xfs_vnodeops.h" #include "xfs_fsops.h" +#include "xfs_alloc.h" +#include "xfs_rtalloc.h" #include "xfs_ioctl.h" #include "xfs_ioctl32.h" @@ -84,6 +86,28 @@ xfs_compat_ioc_fsgeometry_v1( return 0; } +STATIC int +xfs_compat_growfs_data_copyin( + struct xfs_growfs_data *in, + compat_xfs_growfs_data_t __user *arg32) +{ + if (get_user(in->newblocks, &arg32->newblocks) || + get_user(in->imaxpct, &arg32->imaxpct)) + return -XFS_ERROR(EFAULT); + return 0; +} + +STATIC int +xfs_compat_growfs_rt_copyin( + struct xfs_growfs_rt *in, + compat_xfs_growfs_rt_t __user *arg32) +{ + if (get_user(in->newblocks, &arg32->newblocks) || + get_user(in->extsize, &arg32->extsize)) + return -XFS_ERROR(EFAULT); + return 0; +} + STATIC int xfs_inumbers_fmt_compat( void __user *ubuffer, @@ -367,6 +391,22 @@ xfs_compat_ioctl( } case XFS_IOC_FSGEOMETRY_V1_32: return xfs_compat_ioc_fsgeometry_v1(mp, arg); + case XFS_IOC_FSGROWFSDATA_32: { + struct xfs_growfs_data in; + + if (xfs_compat_growfs_data_copyin(&in, arg)) + return -XFS_ERROR(EFAULT); + error = xfs_growfs_data(mp, &in); + return -error; + } + case XFS_IOC_FSGROWFSRT_32: { + struct xfs_growfs_rt in; + + if (xfs_compat_growfs_rt_copyin(&in, arg)) + return -XFS_ERROR(EFAULT); + error = xfs_growfs_rt(mp, &in); + return -error; + } #else /* These are handled fine if no alignment issues */ case XFS_IOC_ALLOCSP: case XFS_IOC_FREESP: diff --git a/fs/xfs/linux-2.6/xfs_ioctl32.h b/fs/xfs/linux-2.6/xfs_ioctl32.h index bf08ab12a6f8..8b2a12a8e96f 100644 --- a/fs/xfs/linux-2.6/xfs_ioctl32.h +++ b/fs/xfs/linux-2.6/xfs_ioctl32.h @@ -177,6 +177,20 @@ typedef struct compat_xfs_inogrp { __u64 xi_allocmask; /* mask of allocated inodes */ } __attribute__((packed)) compat_xfs_inogrp_t; +/* These growfs input structures have padding on the end, so must translate */ +typedef struct compat_xfs_growfs_data { + __u64 newblocks; /* new data subvol size, fsblocks */ + __u32 imaxpct; /* new inode space percentage limit */ +} __attribute__((packed)) compat_xfs_growfs_data_t; + +typedef struct compat_xfs_growfs_rt { + __u64 newblocks; /* new realtime size, fsblocks */ + __u32 extsize; /* new realtime extent size, fsblocks */ +} __attribute__((packed)) compat_xfs_growfs_rt_t; + +#define XFS_IOC_FSGROWFSDATA_32 _IOW('X', 110, struct compat_xfs_growfs_data) +#define XFS_IOC_FSGROWFSRT_32 _IOW('X', 112, struct compat_xfs_growfs_rt) + #endif /* BROKEN_X86_ALIGNMENT */ #endif /* __XFS_IOCTL32_H__ */ -- cgit v1.2.3 From 2ee4fa5cb716eba104a4ef8efe159e1007a2aef6 Mon Sep 17 00:00:00 2001 From: "sandeen@sandeen.net" Date: Tue, 25 Nov 2008 21:20:11 -0600 Subject: [XFS] Make the bulkstat_one compat ioctl handling more sane Currently the compat formatter was handled by passing in "private_data" for the xfs_bulkstat_one formatter, which was really just another formatter... IMHO this got confusing. Instead, just make a new xfs_bulkstat_one_compat formatter for xfs_bulkstat, and call it via a wrapper. Also, don't translate the ioctl nrs into their native counterparts, that just clouds the issue; we're in a compat handler anyway, just switch on the 32-bit cmds. Signed-off-by: Eric Sandeen Reviewed-by: Christoph Hellwig Signed-off-by: Lachlan McIlroy --- fs/xfs/linux-2.6/xfs_ioctl32.c | 36 ++++++++++++++++++++++++------------ fs/xfs/xfs_itable.c | 24 ++++++++++++++++++++---- fs/xfs/xfs_itable.h | 12 ++++++++++++ 3 files changed, 56 insertions(+), 16 deletions(-) (limited to 'fs/xfs/linux-2.6/xfs_ioctl32.c') diff --git a/fs/xfs/linux-2.6/xfs_ioctl32.c b/fs/xfs/linux-2.6/xfs_ioctl32.c index d1ac5d5c009b..a97022f2d9b0 100644 --- a/fs/xfs/linux-2.6/xfs_ioctl32.c +++ b/fs/xfs/linux-2.6/xfs_ioctl32.c @@ -223,14 +223,30 @@ xfs_bulkstat_one_fmt_compat( return sizeof(*p32); } +STATIC int +xfs_bulkstat_one_compat( + xfs_mount_t *mp, /* mount point for filesystem */ + xfs_ino_t ino, /* inode number to get data for */ + void __user *buffer, /* buffer to place output in */ + int ubsize, /* size of buffer */ + void *private_data, /* my private data */ + xfs_daddr_t bno, /* starting bno of inode cluster */ + int *ubused, /* bytes used by me */ + void *dibuff, /* on-disk inode buffer */ + int *stat) /* BULKSTAT_RV_... */ +{ + return xfs_bulkstat_one_int(mp, ino, buffer, ubsize, + xfs_bulkstat_one_fmt_compat, bno, + ubused, dibuff, stat); +} + /* copied from xfs_ioctl.c */ STATIC int -xfs_ioc_bulkstat_compat( - xfs_mount_t *mp, - unsigned int cmd, - void __user *arg) +xfs_compat_ioc_bulkstat( + xfs_mount_t *mp, + unsigned int cmd, + compat_xfs_fsop_bulkreq_t __user *p32) { - compat_xfs_fsop_bulkreq_t __user *p32 = (void __user *)arg; u32 addr; xfs_fsop_bulkreq_t bulkreq; int count; /* # of records returned */ @@ -267,14 +283,12 @@ xfs_ioc_bulkstat_compat( if (bulkreq.ubuffer == NULL) return -XFS_ERROR(EINVAL); - if (cmd == XFS_IOC_FSINUMBERS) + if (cmd == XFS_IOC_FSINUMBERS_32) error = xfs_inumbers(mp, &inlast, &count, bulkreq.ubuffer, xfs_inumbers_fmt_compat); else { - /* declare a var to get a warning in case the type changes */ - bulkstat_one_fmt_pf formatter = xfs_bulkstat_one_fmt_compat; error = xfs_bulkstat(mp, &inlast, &count, - xfs_bulkstat_one, formatter, + xfs_bulkstat_one_compat, NULL, sizeof(compat_xfs_bstat_t), bulkreq.ubuffer, BULKSTAT_FG_QUICK, &done); } @@ -422,9 +436,7 @@ xfs_compat_ioctl( case XFS_IOC_FSBULKSTAT_32: case XFS_IOC_FSBULKSTAT_SINGLE_32: case XFS_IOC_FSINUMBERS_32: - cmd = _NATIVE_IOC(cmd, struct xfs_fsop_bulkreq); - return xfs_ioc_bulkstat_compat(XFS_I(inode)->i_mount, - cmd, (void __user*)arg); + return xfs_compat_ioc_bulkstat(mp, cmd, arg); case XFS_IOC_FD_TO_HANDLE_32: case XFS_IOC_PATH_TO_HANDLE_32: case XFS_IOC_PATH_TO_FSHANDLE_32: { diff --git a/fs/xfs/xfs_itable.c b/fs/xfs/xfs_itable.c index d4c0de860124..7bd49b87160c 100644 --- a/fs/xfs/xfs_itable.c +++ b/fs/xfs/xfs_itable.c @@ -202,13 +202,13 @@ xfs_bulkstat_one_fmt( * Return stat information for one inode. * Return 0 if ok, else errno. */ -int /* error status */ -xfs_bulkstat_one( +int /* error status */ +xfs_bulkstat_one_int( xfs_mount_t *mp, /* mount point for filesystem */ xfs_ino_t ino, /* inode number to get data for */ void __user *buffer, /* buffer to place output in */ int ubsize, /* size of buffer */ - void *private_data, /* my private data */ + bulkstat_one_fmt_pf formatter, /* formatter, copy to user */ xfs_daddr_t bno, /* starting bno of inode cluster */ int *ubused, /* bytes used by me */ void *dibuff, /* on-disk inode buffer */ @@ -217,7 +217,6 @@ xfs_bulkstat_one( xfs_bstat_t *buf; /* return buffer */ int error = 0; /* error value */ xfs_dinode_t *dip; /* dinode inode pointer */ - bulkstat_one_fmt_pf formatter = private_data ? : xfs_bulkstat_one_fmt; dip = (xfs_dinode_t *)dibuff; *stat = BULKSTAT_RV_NOTHING; @@ -255,6 +254,23 @@ xfs_bulkstat_one( return error; } +int +xfs_bulkstat_one( + xfs_mount_t *mp, /* mount point for filesystem */ + xfs_ino_t ino, /* inode number to get data for */ + void __user *buffer, /* buffer to place output in */ + int ubsize, /* size of buffer */ + void *private_data, /* my private data */ + xfs_daddr_t bno, /* starting bno of inode cluster */ + int *ubused, /* bytes used by me */ + void *dibuff, /* on-disk inode buffer */ + int *stat) /* BULKSTAT_RV_... */ +{ + return xfs_bulkstat_one_int(mp, ino, buffer, ubsize, + xfs_bulkstat_one_fmt, bno, + ubused, dibuff, stat); +} + /* * Test to see whether we can use the ondisk inode directly, based * on the given bulkstat flags, filling in dipp accordingly. diff --git a/fs/xfs/xfs_itable.h b/fs/xfs/xfs_itable.h index a1f18fce9b70..e210a4c06569 100644 --- a/fs/xfs/xfs_itable.h +++ b/fs/xfs/xfs_itable.h @@ -73,6 +73,18 @@ typedef int (*bulkstat_one_fmt_pf)( /* used size in bytes or negative error */ void __user *ubuffer, /* buffer to write to */ const xfs_bstat_t *buffer); /* buffer to read from */ +int +xfs_bulkstat_one_int( + xfs_mount_t *mp, + xfs_ino_t ino, + void __user *buffer, + int ubsize, + bulkstat_one_fmt_pf formatter, + xfs_daddr_t bno, + int *ubused, + void *dibuff, + int *stat); + int xfs_bulkstat_one( xfs_mount_t *mp, -- cgit v1.2.3 From 65fbaf2489c667bf79ae1f20403f30c66568d445 Mon Sep 17 00:00:00 2001 From: "sandeen@sandeen.net" Date: Tue, 25 Nov 2008 21:20:12 -0600 Subject: [XFS] Fix xfs_bulkstat_one size checks & error handling The 32-bit xfs_blkstat_one handler was failing because a size check checked whether the remaining (32-bit) user buffer was less than the (64-bit) bulkstat buffer, and failed with ENOMEM if so. Move this check into the respective handlers so that they check the correct sizes. Also, the formatters were returning negative errors or positive bytes copied; this was odd in the positive error value world of xfs, and handled wrong by at least some of the callers, which treated the bytes returned as an error value. Move the bytes-used assignment into the formatters. Signed-off-by: Eric Sandeen Reviewed-by: Christoph Hellwig Signed-off-by: Lachlan McIlroy --- fs/xfs/linux-2.6/xfs_ioctl32.c | 44 +++++++++++++++++++++++++----------------- fs/xfs/xfs_itable.c | 21 ++++++++++---------- fs/xfs/xfs_itable.h | 2 ++ 3 files changed, 39 insertions(+), 28 deletions(-) (limited to 'fs/xfs/linux-2.6/xfs_ioctl32.c') diff --git a/fs/xfs/linux-2.6/xfs_ioctl32.c b/fs/xfs/linux-2.6/xfs_ioctl32.c index a97022f2d9b0..2d336062831d 100644 --- a/fs/xfs/linux-2.6/xfs_ioctl32.c +++ b/fs/xfs/linux-2.6/xfs_ioctl32.c @@ -192,35 +192,43 @@ xfs_bstime_store_compat( return 0; } +/* Return 0 on success or positive error (to xfs_bulkstat()) */ STATIC int xfs_bulkstat_one_fmt_compat( void __user *ubuffer, + int ubsize, + int *ubused, const xfs_bstat_t *buffer) { compat_xfs_bstat_t __user *p32 = ubuffer; - if (put_user(buffer->bs_ino, &p32->bs_ino) || - put_user(buffer->bs_mode, &p32->bs_mode) || - put_user(buffer->bs_nlink, &p32->bs_nlink) || - put_user(buffer->bs_uid, &p32->bs_uid) || - put_user(buffer->bs_gid, &p32->bs_gid) || - put_user(buffer->bs_rdev, &p32->bs_rdev) || - put_user(buffer->bs_blksize, &p32->bs_blksize) || - put_user(buffer->bs_size, &p32->bs_size) || + if (ubsize < sizeof(*p32)) + return XFS_ERROR(ENOMEM); + + if (put_user(buffer->bs_ino, &p32->bs_ino) || + put_user(buffer->bs_mode, &p32->bs_mode) || + put_user(buffer->bs_nlink, &p32->bs_nlink) || + put_user(buffer->bs_uid, &p32->bs_uid) || + put_user(buffer->bs_gid, &p32->bs_gid) || + put_user(buffer->bs_rdev, &p32->bs_rdev) || + put_user(buffer->bs_blksize, &p32->bs_blksize) || + put_user(buffer->bs_size, &p32->bs_size) || xfs_bstime_store_compat(&p32->bs_atime, &buffer->bs_atime) || xfs_bstime_store_compat(&p32->bs_mtime, &buffer->bs_mtime) || xfs_bstime_store_compat(&p32->bs_ctime, &buffer->bs_ctime) || - put_user(buffer->bs_blocks, &p32->bs_blocks) || - put_user(buffer->bs_xflags, &p32->bs_xflags) || - put_user(buffer->bs_extsize, &p32->bs_extsize) || - put_user(buffer->bs_extents, &p32->bs_extents) || - put_user(buffer->bs_gen, &p32->bs_gen) || - put_user(buffer->bs_projid, &p32->bs_projid) || - put_user(buffer->bs_dmevmask, &p32->bs_dmevmask) || - put_user(buffer->bs_dmstate, &p32->bs_dmstate) || + put_user(buffer->bs_blocks, &p32->bs_blocks) || + put_user(buffer->bs_xflags, &p32->bs_xflags) || + put_user(buffer->bs_extsize, &p32->bs_extsize) || + put_user(buffer->bs_extents, &p32->bs_extents) || + put_user(buffer->bs_gen, &p32->bs_gen) || + put_user(buffer->bs_projid, &p32->bs_projid) || + put_user(buffer->bs_dmevmask, &p32->bs_dmevmask) || + put_user(buffer->bs_dmstate, &p32->bs_dmstate) || put_user(buffer->bs_aextents, &p32->bs_aextents)) - return -XFS_ERROR(EFAULT); - return sizeof(*p32); + return XFS_ERROR(EFAULT); + if (ubused) + *ubused = sizeof(*p32); + return 0; } STATIC int diff --git a/fs/xfs/xfs_itable.c b/fs/xfs/xfs_itable.c index 7bd49b87160c..e19d0a8d5618 100644 --- a/fs/xfs/xfs_itable.c +++ b/fs/xfs/xfs_itable.c @@ -188,14 +188,21 @@ xfs_bulkstat_one_dinode( } } +/* Return 0 on success or positive error */ STATIC int xfs_bulkstat_one_fmt( void __user *ubuffer, + int ubsize, + int *ubused, const xfs_bstat_t *buffer) { + if (ubsize < sizeof(*buffer)) + return XFS_ERROR(ENOMEM); if (copy_to_user(ubuffer, buffer, sizeof(*buffer))) - return -EFAULT; - return sizeof(*buffer); + return XFS_ERROR(EFAULT); + if (ubused) + *ubused = sizeof(*buffer); + return 0; } /* @@ -223,8 +230,6 @@ xfs_bulkstat_one_int( if (!buffer || xfs_internal_inum(mp, ino)) return XFS_ERROR(EINVAL); - if (ubsize < sizeof(*buf)) - return XFS_ERROR(ENOMEM); buf = kmem_alloc(sizeof(*buf), KM_SLEEP); @@ -239,15 +244,11 @@ xfs_bulkstat_one_int( xfs_bulkstat_one_dinode(mp, ino, dip, buf); } - error = formatter(buffer, buf); - if (error < 0) { - error = EFAULT; + error = formatter(buffer, ubsize, ubused, buf); + if (error) goto out_free; - } *stat = BULKSTAT_RV_DIDONE; - if (ubused) - *ubused = error; out_free: kmem_free(buf); diff --git a/fs/xfs/xfs_itable.h b/fs/xfs/xfs_itable.h index e210a4c06569..1fb04e7deb61 100644 --- a/fs/xfs/xfs_itable.h +++ b/fs/xfs/xfs_itable.h @@ -71,6 +71,8 @@ xfs_bulkstat_single( typedef int (*bulkstat_one_fmt_pf)( /* used size in bytes or negative error */ void __user *ubuffer, /* buffer to write to */ + int ubsize, /* remaining user buffer sz */ + int *ubused, /* bytes used by formatter */ const xfs_bstat_t *buffer); /* buffer to read from */ int -- cgit v1.2.3 From af819d27637119105213433881f158931e29620b Mon Sep 17 00:00:00 2001 From: "sandeen@sandeen.net" Date: Tue, 25 Nov 2008 21:20:13 -0600 Subject: [XFS] Fix compat XFS_IOC_FSBULKSTAT_SINGLE ioctl The XFS_IOC_FSBULKSTAT_SINGLE ioctl passes in the desired inode number, while XFS_IOC_FSBULKSTAT passes in the previous/last-stat'd inode number. The compat handler wasn't differentiating these, so when a XFS_IOC_FSBULKSTAT_SINGLE request for inode 128 was sent in, stat information for 131 was sent out. Signed-off-by: Eric Sandeen Reviewed-by: Christoph Hellwig Signed-off-by: Lachlan McIlroy --- fs/xfs/linux-2.6/xfs_ioctl32.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-) (limited to 'fs/xfs/linux-2.6/xfs_ioctl32.c') diff --git a/fs/xfs/linux-2.6/xfs_ioctl32.c b/fs/xfs/linux-2.6/xfs_ioctl32.c index 2d336062831d..cc1fe96efab5 100644 --- a/fs/xfs/linux-2.6/xfs_ioctl32.c +++ b/fs/xfs/linux-2.6/xfs_ioctl32.c @@ -291,15 +291,22 @@ xfs_compat_ioc_bulkstat( if (bulkreq.ubuffer == NULL) return -XFS_ERROR(EINVAL); - if (cmd == XFS_IOC_FSINUMBERS_32) + if (cmd == XFS_IOC_FSINUMBERS_32) { error = xfs_inumbers(mp, &inlast, &count, bulkreq.ubuffer, xfs_inumbers_fmt_compat); - else { + } else if (cmd == XFS_IOC_FSBULKSTAT_SINGLE_32) { + int res; + + error = xfs_bulkstat_one_compat(mp, inlast, bulkreq.ubuffer, + sizeof(compat_xfs_bstat_t), + NULL, 0, NULL, NULL, &res); + } else if (cmd == XFS_IOC_FSBULKSTAT_32) { error = xfs_bulkstat(mp, &inlast, &count, xfs_bulkstat_one_compat, NULL, sizeof(compat_xfs_bstat_t), bulkreq.ubuffer, BULKSTAT_FG_QUICK, &done); - } + } else + error = XFS_ERROR(EINVAL); if (error) return -error; -- cgit v1.2.3 From ebeecd2b04645a4b79e1bc00d69cf4f98e03a684 Mon Sep 17 00:00:00 2001 From: "sandeen@sandeen.net" Date: Tue, 25 Nov 2008 21:20:14 -0600 Subject: [XFS] Hook up compat XFS_IOC_ATTRLIST_BY_HANDLE ioctl handler Add a compat handler for XFS_IOC_ATTRLIST_BY_HANDLE Signed-off-by: Eric Sandeen Reviewed-by: Christoph Hellwig Signed-off-by: Lachlan McIlroy --- fs/xfs/linux-2.6/xfs_ioctl32.c | 136 ++++++++++++++++++++++++++++++++++++++++- fs/xfs/linux-2.6/xfs_ioctl32.h | 12 ++++ 2 files changed, 147 insertions(+), 1 deletion(-) (limited to 'fs/xfs/linux-2.6/xfs_ioctl32.c') diff --git a/fs/xfs/linux-2.6/xfs_ioctl32.c b/fs/xfs/linux-2.6/xfs_ioctl32.c index cc1fe96efab5..e7eb0d7e0d56 100644 --- a/fs/xfs/linux-2.6/xfs_ioctl32.c +++ b/fs/xfs/linux-2.6/xfs_ioctl32.c @@ -46,6 +46,7 @@ #include "xfs_fsops.h" #include "xfs_alloc.h" #include "xfs_rtalloc.h" +#include "xfs_attr.h" #include "xfs_ioctl.h" #include "xfs_ioctl32.h" @@ -343,6 +344,138 @@ xfs_compat_handlereq_copyin( return 0; } +/* + * Convert userspace handle data into inode. + * + * We use the fact that all the fsop_handlereq ioctl calls have a data + * structure argument whose first component is always a xfs_fsop_handlereq_t, + * so we can pass that sub structure into this handy, shared routine. + * + * If no error, caller must always iput the returned inode. + */ +STATIC int +xfs_vget_fsop_handlereq_compat( + xfs_mount_t *mp, + struct inode *parinode, /* parent inode pointer */ + compat_xfs_fsop_handlereq_t *hreq, + struct inode **inode) +{ + void __user *hanp; + size_t hlen; + xfs_fid_t *xfid; + xfs_handle_t *handlep; + xfs_handle_t handle; + xfs_inode_t *ip; + xfs_ino_t ino; + __u32 igen; + int error; + + /* + * Only allow handle opens under a directory. + */ + if (!S_ISDIR(parinode->i_mode)) + return XFS_ERROR(ENOTDIR); + + hanp = compat_ptr(hreq->ihandle); + hlen = hreq->ihandlen; + handlep = &handle; + + if (hlen < sizeof(handlep->ha_fsid) || hlen > sizeof(*handlep)) + return XFS_ERROR(EINVAL); + if (copy_from_user(handlep, hanp, hlen)) + return XFS_ERROR(EFAULT); + if (hlen < sizeof(*handlep)) + memset(((char *)handlep) + hlen, 0, sizeof(*handlep) - hlen); + if (hlen > sizeof(handlep->ha_fsid)) { + if (handlep->ha_fid.fid_len != + (hlen - sizeof(handlep->ha_fsid) - + sizeof(handlep->ha_fid.fid_len)) || + handlep->ha_fid.fid_pad) + return XFS_ERROR(EINVAL); + } + + /* + * Crack the handle, obtain the inode # & generation # + */ + xfid = (struct xfs_fid *)&handlep->ha_fid; + if (xfid->fid_len == sizeof(*xfid) - sizeof(xfid->fid_len)) { + ino = xfid->fid_ino; + igen = xfid->fid_gen; + } else { + return XFS_ERROR(EINVAL); + } + + /* + * Get the XFS inode, building a Linux inode to go with it. + */ + error = xfs_iget(mp, NULL, ino, 0, XFS_ILOCK_SHARED, &ip, 0); + if (error) + return error; + if (ip == NULL) + return XFS_ERROR(EIO); + if (ip->i_d.di_gen != igen) { + xfs_iput_new(ip, XFS_ILOCK_SHARED); + return XFS_ERROR(ENOENT); + } + + xfs_iunlock(ip, XFS_ILOCK_SHARED); + + *inode = VFS_I(ip); + return 0; +} + +STATIC int +xfs_compat_attrlist_by_handle( + xfs_mount_t *mp, + void __user *arg, + struct inode *parinode) +{ + int error; + attrlist_cursor_kern_t *cursor; + compat_xfs_fsop_attrlist_handlereq_t al_hreq; + struct inode *inode; + char *kbuf; + + if (!capable(CAP_SYS_ADMIN)) + return -XFS_ERROR(EPERM); + if (copy_from_user(&al_hreq, arg, + sizeof(compat_xfs_fsop_attrlist_handlereq_t))) + return -XFS_ERROR(EFAULT); + if (al_hreq.buflen > XATTR_LIST_MAX) + return -XFS_ERROR(EINVAL); + + /* + * Reject flags, only allow namespaces. + */ + if (al_hreq.flags & ~(ATTR_ROOT | ATTR_SECURE)) + return -XFS_ERROR(EINVAL); + + error = xfs_vget_fsop_handlereq_compat(mp, parinode, &al_hreq.hreq, + &inode); + if (error) + goto out; + + kbuf = kmalloc(al_hreq.buflen, GFP_KERNEL); + if (!kbuf) + goto out_vn_rele; + + cursor = (attrlist_cursor_kern_t *)&al_hreq.pos; + error = xfs_attr_list(XFS_I(inode), kbuf, al_hreq.buflen, + al_hreq.flags, cursor); + if (error) + goto out_kfree; + + if (copy_to_user(compat_ptr(al_hreq.buffer), kbuf, al_hreq.buflen)) + error = -EFAULT; + + out_kfree: + kfree(kbuf); + out_vn_rele: + iput(inode); + out: + return -error; +} + STATIC long xfs_compat_ioctl( xfs_inode_t *ip, @@ -368,7 +501,6 @@ xfs_compat_ioctl( case XFS_IOC_GETBMAPX: /* not handled case XFS_IOC_FSSETDM_BY_HANDLE: - case XFS_IOC_ATTRLIST_BY_HANDLE: case XFS_IOC_ATTRMULTI_BY_HANDLE: */ case XFS_IOC_FSCOUNTS: @@ -476,6 +608,8 @@ xfs_compat_ioctl( return -XFS_ERROR(EFAULT); return xfs_readlink_by_handle(mp, &hreq, inode); } + case XFS_IOC_ATTRLIST_BY_HANDLE_32: + return xfs_compat_attrlist_by_handle(mp, arg, inode); default: return -XFS_ERROR(ENOIOCTLCMD); } diff --git a/fs/xfs/linux-2.6/xfs_ioctl32.h b/fs/xfs/linux-2.6/xfs_ioctl32.h index 8b2a12a8e96f..bbf3a2cd8a7d 100644 --- a/fs/xfs/linux-2.6/xfs_ioctl32.h +++ b/fs/xfs/linux-2.6/xfs_ioctl32.h @@ -123,6 +123,18 @@ typedef struct compat_xfs_swapext { #define XFS_IOC_SWAPEXT_32 _IOWR('X', 109, struct compat_xfs_swapext) +typedef struct compat_xfs_fsop_attrlist_handlereq { + struct compat_xfs_fsop_handlereq hreq; /* handle interface structure */ + struct xfs_attrlist_cursor pos; /* opaque cookie, list offset */ + __u32 flags; /* which namespace to use */ + __u32 buflen; /* length of buffer supplied */ + compat_uptr_t buffer; /* returned names */ +} __compat_packed compat_xfs_fsop_attrlist_handlereq_t; + +/* Note: actually this is read/write */ +#define XFS_IOC_ATTRLIST_BY_HANDLE_32 \ + _IOW('X', 122, struct compat_xfs_fsop_attrlist_handlereq) + #ifdef BROKEN_X86_ALIGNMENT /* on ia32 l_start is on a 32-bit boundary */ typedef struct compat_xfs_flock64 { -- cgit v1.2.3 From 28750975ace79c547407a84d3969cbed516be8f8 Mon Sep 17 00:00:00 2001 From: "sandeen@sandeen.net" Date: Tue, 25 Nov 2008 21:20:15 -0600 Subject: [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 Reviewed-by: Christoph Hellwig Signed-off-by: Lachlan McIlroy --- fs/xfs/linux-2.6/xfs_ioctl.c | 6 +-- fs/xfs/linux-2.6/xfs_ioctl.h | 23 +++++++++++ fs/xfs/linux-2.6/xfs_ioctl32.c | 94 ++++++++++++++++++++++++++++++++++++++++-- fs/xfs/linux-2.6/xfs_ioctl32.h | 20 +++++++++ 4 files changed, 136 insertions(+), 7 deletions(-) (limited to 'fs/xfs/linux-2.6/xfs_ioctl32.c') diff --git a/fs/xfs/linux-2.6/xfs_ioctl.c b/fs/xfs/linux-2.6/xfs_ioctl.c index 498d3e15843b..c8f1e632ba94 100644 --- a/fs/xfs/linux-2.6/xfs_ioctl.c +++ b/fs/xfs/linux-2.6/xfs_ioctl.c @@ -490,7 +490,7 @@ xfs_attrlist_by_handle( return -error; } -STATIC int +int xfs_attrmulti_attr_get( struct inode *inode, char *name, @@ -519,7 +519,7 @@ xfs_attrmulti_attr_get( return error; } -STATIC int +int xfs_attrmulti_attr_set( struct inode *inode, char *name, @@ -549,7 +549,7 @@ xfs_attrmulti_attr_set( return error; } -STATIC int +int xfs_attrmulti_attr_remove( struct inode *inode, char *name, diff --git a/fs/xfs/linux-2.6/xfs_ioctl.h b/fs/xfs/linux-2.6/xfs_ioctl.h index 2df849f49a5e..f67dc69381e8 100644 --- a/fs/xfs/linux-2.6/xfs_ioctl.h +++ b/fs/xfs/linux-2.6/xfs_ioctl.h @@ -44,4 +44,27 @@ xfs_readlink_by_handle( xfs_mount_t *mp, xfs_fsop_handlereq_t *hreq, struct inode *parinode); + +extern int +xfs_attrmulti_attr_get( + struct inode *inode, + char *name, + char __user *ubuf, + __uint32_t *len, + __uint32_t flags); + +extern int + xfs_attrmulti_attr_set( + struct inode *inode, + char *name, + const char __user *ubuf, + __uint32_t len, + __uint32_t flags); + +extern int +xfs_attrmulti_attr_remove( + struct inode *inode, + char *name, + __uint32_t flags); + #endif diff --git a/fs/xfs/linux-2.6/xfs_ioctl32.c b/fs/xfs/linux-2.6/xfs_ioctl32.c index e7eb0d7e0d56..17993352aa64 100644 --- a/fs/xfs/linux-2.6/xfs_ioctl32.c +++ b/fs/xfs/linux-2.6/xfs_ioctl32.c @@ -476,6 +476,93 @@ xfs_compat_attrlist_by_handle( return -error; } +STATIC int +xfs_compat_attrmulti_by_handle( + xfs_mount_t *mp, + void __user *arg, + struct inode *parinode) +{ + int error; + compat_xfs_attr_multiop_t *ops; + compat_xfs_fsop_attrmulti_handlereq_t am_hreq; + struct inode *inode; + unsigned int i, size; + char *attr_name; + + if (!capable(CAP_SYS_ADMIN)) + return -XFS_ERROR(EPERM); + if (copy_from_user(&am_hreq, arg, + sizeof(compat_xfs_fsop_attrmulti_handlereq_t))) + return -XFS_ERROR(EFAULT); + + error = xfs_vget_fsop_handlereq_compat(mp, parinode, &am_hreq.hreq, + &inode); + if (error) + goto out; + + error = E2BIG; + size = am_hreq.opcount * sizeof(compat_xfs_attr_multiop_t); + if (!size || size > 16 * PAGE_SIZE) + goto out_vn_rele; + + error = ENOMEM; + ops = kmalloc(size, GFP_KERNEL); + if (!ops) + goto out_vn_rele; + + error = EFAULT; + if (copy_from_user(ops, compat_ptr(am_hreq.ops), size)) + goto out_kfree_ops; + + attr_name = kmalloc(MAXNAMELEN, GFP_KERNEL); + if (!attr_name) + goto out_kfree_ops; + + + error = 0; + for (i = 0; i < am_hreq.opcount; i++) { + ops[i].am_error = strncpy_from_user(attr_name, + compat_ptr(ops[i].am_attrname), + MAXNAMELEN); + if (ops[i].am_error == 0 || ops[i].am_error == MAXNAMELEN) + error = -ERANGE; + if (ops[i].am_error < 0) + break; + + switch (ops[i].am_opcode) { + case ATTR_OP_GET: + ops[i].am_error = xfs_attrmulti_attr_get(inode, + attr_name, + compat_ptr(ops[i].am_attrvalue), + &ops[i].am_length, ops[i].am_flags); + break; + case ATTR_OP_SET: + ops[i].am_error = xfs_attrmulti_attr_set(inode, + attr_name, + compat_ptr(ops[i].am_attrvalue), + ops[i].am_length, ops[i].am_flags); + break; + case ATTR_OP_REMOVE: + ops[i].am_error = xfs_attrmulti_attr_remove(inode, + attr_name, ops[i].am_flags); + break; + default: + ops[i].am_error = EINVAL; + } + } + + if (copy_to_user(compat_ptr(am_hreq.ops), ops, size)) + error = XFS_ERROR(EFAULT); + + kfree(attr_name); + out_kfree_ops: + kfree(ops); + out_vn_rele: + iput(inode); + out: + return -error; +} + STATIC long xfs_compat_ioctl( xfs_inode_t *ip, @@ -499,10 +586,7 @@ xfs_compat_ioctl( case XFS_IOC_GETBMAP: case XFS_IOC_GETBMAPA: case XFS_IOC_GETBMAPX: -/* not handled - case XFS_IOC_FSSETDM_BY_HANDLE: - case XFS_IOC_ATTRMULTI_BY_HANDLE: -*/ +/* case XFS_IOC_FSSETDM_BY_HANDLE: not handled */ case XFS_IOC_FSCOUNTS: case XFS_IOC_SET_RESBLKS: case XFS_IOC_GET_RESBLKS: @@ -610,6 +694,8 @@ xfs_compat_ioctl( } case XFS_IOC_ATTRLIST_BY_HANDLE_32: return xfs_compat_attrlist_by_handle(mp, arg, inode); + case XFS_IOC_ATTRMULTI_BY_HANDLE_32: + return xfs_compat_attrmulti_by_handle(mp, arg, inode); default: return -XFS_ERROR(ENOIOCTLCMD); } diff --git a/fs/xfs/linux-2.6/xfs_ioctl32.h b/fs/xfs/linux-2.6/xfs_ioctl32.h index bbf3a2cd8a7d..785e7ec318cf 100644 --- a/fs/xfs/linux-2.6/xfs_ioctl32.h +++ b/fs/xfs/linux-2.6/xfs_ioctl32.h @@ -135,6 +135,26 @@ typedef struct compat_xfs_fsop_attrlist_handlereq { #define XFS_IOC_ATTRLIST_BY_HANDLE_32 \ _IOW('X', 122, struct compat_xfs_fsop_attrlist_handlereq) +/* am_opcodes defined in xfs_fs.h */ +typedef struct compat_xfs_attr_multiop { + __u32 am_opcode; + __s32 am_error; + compat_uptr_t am_attrname; + compat_uptr_t am_attrvalue; + __u32 am_length; + __u32 am_flags; +} compat_xfs_attr_multiop_t; + +typedef struct compat_xfs_fsop_attrmulti_handlereq { + struct compat_xfs_fsop_handlereq hreq; /* handle interface structure */ + __u32 opcount;/* count of following multiop */ + /* ptr to compat_xfs_attr_multiop */ + compat_uptr_t ops; /* attr_multi data */ +} compat_xfs_fsop_attrmulti_handlereq_t; + +#define XFS_IOC_ATTRMULTI_BY_HANDLE_32 \ + _IOW('X', 123, struct compat_xfs_fsop_attrmulti_handlereq) + #ifdef BROKEN_X86_ALIGNMENT /* on ia32 l_start is on a 32-bit boundary */ typedef struct compat_xfs_flock64 { -- cgit v1.2.3 From 710d62aaaf17c841b8bdbc7a775f8910a7160248 Mon Sep 17 00:00:00 2001 From: "sandeen@sandeen.net" Date: Tue, 25 Nov 2008 21:20:16 -0600 Subject: [XFS] Hook up compat XFS_IOC_FSSETDM_BY_HANDLE ioctl handler Add a compat handler for XFS_IOC_FSSETDM_BY_HANDLE. I haven't tested this, lacking dmapi tools to do so (unless xfsqa magically gets this somehow?) Signed-off-by: Eric Sandeen Reviewed-by: Christoph Hellwig Signed-off-by: Lachlan McIlroy --- fs/xfs/linux-2.6/xfs_ioctl32.c | 43 +++++++++++++++++++++++++++++++++++++++++- fs/xfs/linux-2.6/xfs_ioctl32.h | 9 +++++++++ 2 files changed, 51 insertions(+), 1 deletion(-) (limited to 'fs/xfs/linux-2.6/xfs_ioctl32.c') diff --git a/fs/xfs/linux-2.6/xfs_ioctl32.c b/fs/xfs/linux-2.6/xfs_ioctl32.c index 17993352aa64..9234360910f2 100644 --- a/fs/xfs/linux-2.6/xfs_ioctl32.c +++ b/fs/xfs/linux-2.6/xfs_ioctl32.c @@ -563,6 +563,46 @@ xfs_compat_attrmulti_by_handle( return -error; } +STATIC int +xfs_compat_fssetdm_by_handle( + xfs_mount_t *mp, + void __user *arg, + struct inode *parinode) +{ + int error; + struct fsdmidata fsd; + compat_xfs_fsop_setdm_handlereq_t dmhreq; + struct inode *inode; + + if (!capable(CAP_MKNOD)) + return -XFS_ERROR(EPERM); + if (copy_from_user(&dmhreq, arg, + sizeof(compat_xfs_fsop_setdm_handlereq_t))) + return -XFS_ERROR(EFAULT); + + error = xfs_vget_fsop_handlereq_compat(mp, parinode, &dmhreq.hreq, + &inode); + if (error) + return -error; + + if (IS_IMMUTABLE(inode) || IS_APPEND(inode)) { + error = -XFS_ERROR(EPERM); + goto out; + } + + if (copy_from_user(&fsd, compat_ptr(dmhreq.data), sizeof(fsd))) { + error = -XFS_ERROR(EFAULT); + goto out; + } + + error = -xfs_set_dmattrs(XFS_I(inode), fsd.fsd_dmevmask, + fsd.fsd_dmstate); + +out: + iput(inode); + return error; +} + STATIC long xfs_compat_ioctl( xfs_inode_t *ip, @@ -586,7 +626,6 @@ xfs_compat_ioctl( case XFS_IOC_GETBMAP: case XFS_IOC_GETBMAPA: case XFS_IOC_GETBMAPX: -/* case XFS_IOC_FSSETDM_BY_HANDLE: not handled */ case XFS_IOC_FSCOUNTS: case XFS_IOC_SET_RESBLKS: case XFS_IOC_GET_RESBLKS: @@ -696,6 +735,8 @@ xfs_compat_ioctl( return xfs_compat_attrlist_by_handle(mp, arg, inode); case XFS_IOC_ATTRMULTI_BY_HANDLE_32: return xfs_compat_attrmulti_by_handle(mp, arg, inode); + case XFS_IOC_FSSETDM_BY_HANDLE_32: + return xfs_compat_fssetdm_by_handle(mp, arg, inode); default: return -XFS_ERROR(ENOIOCTLCMD); } diff --git a/fs/xfs/linux-2.6/xfs_ioctl32.h b/fs/xfs/linux-2.6/xfs_ioctl32.h index 785e7ec318cf..af918749d186 100644 --- a/fs/xfs/linux-2.6/xfs_ioctl32.h +++ b/fs/xfs/linux-2.6/xfs_ioctl32.h @@ -155,6 +155,15 @@ typedef struct compat_xfs_fsop_attrmulti_handlereq { #define XFS_IOC_ATTRMULTI_BY_HANDLE_32 \ _IOW('X', 123, struct compat_xfs_fsop_attrmulti_handlereq) +typedef struct compat_xfs_fsop_setdm_handlereq { + struct compat_xfs_fsop_handlereq hreq; /* handle information */ + /* ptr to struct fsdmidata */ + compat_uptr_t data; /* DMAPI data */ +} compat_xfs_fsop_setdm_handlereq_t; + +#define XFS_IOC_FSSETDM_BY_HANDLE_32 \ + _IOW('X', 121, struct compat_xfs_fsop_setdm_handlereq) + #ifdef BROKEN_X86_ALIGNMENT /* on ia32 l_start is on a 32-bit boundary */ typedef struct compat_xfs_flock64 { -- cgit v1.2.3 From e5d412f17846b0aea9e5250926f994ab2e4e1006 Mon Sep 17 00:00:00 2001 From: "sandeen@sandeen.net" Date: Tue, 25 Nov 2008 21:20:17 -0600 Subject: [XFS] Reorder xfs_ioctl32.c for some tidiness Put things in IMHO a more readable order, now that it's all done; add some comments. Signed-off-by: Eric Sandeen Reviewed-by: Christoph Hellwig Signed-off-by: Lachlan McIlroy --- fs/xfs/linux-2.6/xfs_ioctl32.c | 78 +++++++++++++++++++----------------------- 1 file changed, 36 insertions(+), 42 deletions(-) (limited to 'fs/xfs/linux-2.6/xfs_ioctl32.c') diff --git a/fs/xfs/linux-2.6/xfs_ioctl32.c b/fs/xfs/linux-2.6/xfs_ioctl32.c index 9234360910f2..b34b3d8892a2 100644 --- a/fs/xfs/linux-2.6/xfs_ioctl32.c +++ b/fs/xfs/linux-2.6/xfs_ioctl32.c @@ -16,11 +16,7 @@ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #include -#include #include -#include -#include -#include #include #include "xfs.h" #include "xfs_fs.h" @@ -131,7 +127,7 @@ xfs_inumbers_fmt_compat( #else #define xfs_inumbers_fmt_compat xfs_inumbers_fmt -#endif +#endif /* BROKEN_X86_ALIGNMENT */ STATIC int xfs_ioctl32_bstime_copyin( @@ -617,6 +613,7 @@ xfs_compat_ioctl( xfs_itrace_entry(XFS_I(inode)); switch (cmd) { + /* No size or alignment issues on any arch */ case XFS_IOC_DIOINFO: case XFS_IOC_FSGEOMETRY: case XFS_IOC_FSGETXATTR: @@ -629,35 +626,28 @@ xfs_compat_ioctl( case XFS_IOC_FSCOUNTS: case XFS_IOC_SET_RESBLKS: case XFS_IOC_GET_RESBLKS: - case XFS_IOC_FSGROWFSDATA: case XFS_IOC_FSGROWFSLOG: - case XFS_IOC_FSGROWFSRT: case XFS_IOC_FREEZE: case XFS_IOC_THAW: case XFS_IOC_GOINGDOWN: case XFS_IOC_ERROR_INJECTION: case XFS_IOC_ERROR_CLEARALL: - break; - - case XFS_IOC_GETXFLAGS_32: - case XFS_IOC_SETXFLAGS_32: - case XFS_IOC_GETVERSION_32: - cmd = _NATIVE_IOC(cmd, long); - break; - case XFS_IOC_SWAPEXT: { - struct xfs_swapext sxp; - struct compat_xfs_swapext __user *sxu = arg; - - /* Bulk copy in up to the sx_stat field, then grab bstat */ - if (copy_from_user(&sxp, sxu, - offsetof(xfs_swapext_t, sx_stat)) || - xfs_ioctl32_bstat_copyin(&sxp.sx_stat, &sxu->sx_stat)) - return -XFS_ERROR(EFAULT); - error = xfs_swapext(&sxp); - return -error; - } -#ifdef BROKEN_X86_ALIGNMENT - /* xfs_flock_t has wrong u32 vs u64 alignment */ + return xfs_ioctl(ip, filp, ioflags, cmd, arg); +#ifndef BROKEN_X86_ALIGNMENT + /* These are handled fine if no alignment issues */ + case XFS_IOC_ALLOCSP: + case XFS_IOC_FREESP: + case XFS_IOC_RESVSP: + case XFS_IOC_UNRESVSP: + case XFS_IOC_ALLOCSP64: + case XFS_IOC_FREESP64: + case XFS_IOC_RESVSP64: + case XFS_IOC_UNRESVSP64: + case XFS_IOC_FSGEOMETRY_V1: + case XFS_IOC_FSGROWFSDATA: + case XFS_IOC_FSGROWFSRT: + return xfs_ioctl(ip, filp, ioflags, cmd, arg); +#else case XFS_IOC_ALLOCSP_32: case XFS_IOC_FREESP_32: case XFS_IOC_ALLOCSP64_32: @@ -691,18 +681,25 @@ xfs_compat_ioctl( error = xfs_growfs_rt(mp, &in); return -error; } -#else /* These are handled fine if no alignment issues */ - case XFS_IOC_ALLOCSP: - case XFS_IOC_FREESP: - case XFS_IOC_RESVSP: - case XFS_IOC_UNRESVSP: - case XFS_IOC_ALLOCSP64: - case XFS_IOC_FREESP64: - case XFS_IOC_RESVSP64: - case XFS_IOC_UNRESVSP64: - case XFS_IOC_FSGEOMETRY_V1: - break; #endif + /* long changes size, but xfs only copiese out 32 bits */ + case XFS_IOC_GETXFLAGS_32: + case XFS_IOC_SETXFLAGS_32: + case XFS_IOC_GETVERSION_32: + cmd = _NATIVE_IOC(cmd, long); + return xfs_ioctl(ip, filp, ioflags, cmd, arg); + case XFS_IOC_SWAPEXT: { + struct xfs_swapext sxp; + struct compat_xfs_swapext __user *sxu = arg; + + /* Bulk copy in up to the sx_stat field, then copy bstat */ + if (copy_from_user(&sxp, sxu, + offsetof(struct xfs_swapext, sx_stat)) || + xfs_ioctl32_bstat_copyin(&sxp.sx_stat, &sxu->sx_stat)) + return -XFS_ERROR(EFAULT); + error = xfs_swapext(&sxp); + return -error; + } case XFS_IOC_FSBULKSTAT_32: case XFS_IOC_FSBULKSTAT_SINGLE_32: case XFS_IOC_FSINUMBERS_32: @@ -740,9 +737,6 @@ xfs_compat_ioctl( default: return -XFS_ERROR(ENOIOCTLCMD); } - - error = xfs_ioctl(ip, filp, ioflags, cmd, arg); - return error; } long -- cgit v1.2.3 From 4d4be482a4d78ca906f45e99fd9fdb91e907f5ad Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Tue, 9 Dec 2008 04:47:33 -0500 Subject: [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 Signed-off-by: Lachlan McIlroy --- fs/xfs/linux-2.6/xfs_file.c | 145 ++++++----------------------------------- fs/xfs/linux-2.6/xfs_ioctl.c | 29 ++++++--- fs/xfs/linux-2.6/xfs_ioctl.h | 8 +-- fs/xfs/linux-2.6/xfs_ioctl32.c | 56 ++++++---------- fs/xfs/linux-2.6/xfs_iops.h | 1 - fs/xfs/xfs_vnodeops.h | 2 - include/linux/fs.h | 8 +++ 7 files changed, 71 insertions(+), 178 deletions(-) (limited to 'fs/xfs/linux-2.6/xfs_ioctl32.c') diff --git a/fs/xfs/linux-2.6/xfs_file.c b/fs/xfs/linux-2.6/xfs_file.c index f999d20a429c..a0c45cc8a6b8 100644 --- a/fs/xfs/linux-2.6/xfs_file.c +++ b/fs/xfs/linux-2.6/xfs_file.c @@ -45,80 +45,44 @@ static struct vm_operations_struct xfs_file_vm_ops; -STATIC_INLINE ssize_t -__xfs_file_read( +STATIC ssize_t +xfs_file_aio_read( struct kiocb *iocb, const struct iovec *iov, unsigned long nr_segs, - int ioflags, loff_t pos) { struct file *file = iocb->ki_filp; + int ioflags = IO_ISAIO; BUG_ON(iocb->ki_pos != pos); if (unlikely(file->f_flags & O_DIRECT)) ioflags |= IO_ISDIRECT; + if (file->f_mode & FMODE_NOCMTIME) + ioflags |= IO_INVIS; return xfs_read(XFS_I(file->f_path.dentry->d_inode), iocb, iov, nr_segs, &iocb->ki_pos, ioflags); } STATIC ssize_t -xfs_file_aio_read( - struct kiocb *iocb, - const struct iovec *iov, - unsigned long nr_segs, - loff_t pos) -{ - return __xfs_file_read(iocb, iov, nr_segs, IO_ISAIO, pos); -} - -STATIC ssize_t -xfs_file_aio_read_invis( - struct kiocb *iocb, - const struct iovec *iov, - unsigned long nr_segs, - loff_t pos) -{ - return __xfs_file_read(iocb, iov, nr_segs, IO_ISAIO|IO_INVIS, pos); -} - -STATIC_INLINE ssize_t -__xfs_file_write( +xfs_file_aio_write( struct kiocb *iocb, const struct iovec *iov, unsigned long nr_segs, - int ioflags, loff_t pos) { - struct file *file = iocb->ki_filp; + struct file *file = iocb->ki_filp; + int ioflags = IO_ISAIO; BUG_ON(iocb->ki_pos != pos); if (unlikely(file->f_flags & O_DIRECT)) ioflags |= IO_ISDIRECT; + if (file->f_mode & FMODE_NOCMTIME) + ioflags |= IO_INVIS; return xfs_write(XFS_I(file->f_mapping->host), iocb, iov, nr_segs, &iocb->ki_pos, ioflags); } -STATIC ssize_t -xfs_file_aio_write( - struct kiocb *iocb, - const struct iovec *iov, - unsigned long nr_segs, - loff_t pos) -{ - return __xfs_file_write(iocb, iov, nr_segs, IO_ISAIO, pos); -} - -STATIC ssize_t -xfs_file_aio_write_invis( - struct kiocb *iocb, - const struct iovec *iov, - unsigned long nr_segs, - loff_t pos) -{ - return __xfs_file_write(iocb, iov, nr_segs, IO_ISAIO|IO_INVIS, pos); -} - STATIC ssize_t xfs_file_splice_read( struct file *infilp, @@ -127,20 +91,13 @@ xfs_file_splice_read( size_t len, unsigned int flags) { - return xfs_splice_read(XFS_I(infilp->f_path.dentry->d_inode), - infilp, ppos, pipe, len, flags, 0); -} + int ioflags = 0; + + if (infilp->f_mode & FMODE_NOCMTIME) + ioflags |= IO_INVIS; -STATIC ssize_t -xfs_file_splice_read_invis( - struct file *infilp, - loff_t *ppos, - struct pipe_inode_info *pipe, - size_t len, - unsigned int flags) -{ return xfs_splice_read(XFS_I(infilp->f_path.dentry->d_inode), - infilp, ppos, pipe, len, flags, IO_INVIS); + infilp, ppos, pipe, len, flags, ioflags); } STATIC ssize_t @@ -151,20 +108,13 @@ xfs_file_splice_write( size_t len, unsigned int flags) { - return xfs_splice_write(XFS_I(outfilp->f_path.dentry->d_inode), - pipe, outfilp, ppos, len, flags, 0); -} + int ioflags = 0; + + if (outfilp->f_mode & FMODE_NOCMTIME) + ioflags |= IO_INVIS; -STATIC ssize_t -xfs_file_splice_write_invis( - struct pipe_inode_info *pipe, - struct file *outfilp, - loff_t *ppos, - size_t len, - unsigned int flags) -{ return xfs_splice_write(XFS_I(outfilp->f_path.dentry->d_inode), - pipe, outfilp, ppos, len, flags, IO_INVIS); + pipe, outfilp, ppos, len, flags, ioflags); } STATIC int @@ -275,42 +225,6 @@ xfs_file_mmap( return 0; } -STATIC long -xfs_file_ioctl( - struct file *filp, - unsigned int cmd, - unsigned long p) -{ - struct inode *inode = filp->f_path.dentry->d_inode; - - - /* NOTE: some of the ioctl's return positive #'s as a - * byte count indicating success, such as - * readlink_by_handle. So we don't "sign flip" - * like most other routines. This means true - * errors need to be returned as a negative value. - */ - return xfs_ioctl(XFS_I(inode), filp, 0, cmd, (void __user *)p); -} - -STATIC long -xfs_file_ioctl_invis( - struct file *filp, - unsigned int cmd, - unsigned long p) -{ - struct inode *inode = filp->f_path.dentry->d_inode; - - - /* NOTE: some of the ioctl's return positive #'s as a - * byte count indicating success, such as - * readlink_by_handle. So we don't "sign flip" - * like most other routines. This means true - * errors need to be returned as a negative value. - */ - return xfs_ioctl(XFS_I(inode), filp, IO_INVIS, cmd, (void __user *)p); -} - /* * mmap()d file has taken write protection fault and is being made * writable. We can set the page state up correctly for a writable @@ -346,25 +260,6 @@ const struct file_operations xfs_file_operations = { #endif }; -const struct file_operations xfs_invis_file_operations = { - .llseek = generic_file_llseek, - .read = do_sync_read, - .write = do_sync_write, - .aio_read = xfs_file_aio_read_invis, - .aio_write = xfs_file_aio_write_invis, - .splice_read = xfs_file_splice_read_invis, - .splice_write = xfs_file_splice_write_invis, - .unlocked_ioctl = xfs_file_ioctl_invis, -#ifdef CONFIG_COMPAT - .compat_ioctl = xfs_file_compat_invis_ioctl, -#endif - .mmap = xfs_file_mmap, - .open = xfs_file_open, - .release = xfs_file_release, - .fsync = xfs_file_fsync, -}; - - const struct file_operations xfs_dir_file_operations = { .open = xfs_dir_open, .read = generic_read_dir, diff --git a/fs/xfs/linux-2.6/xfs_ioctl.c b/fs/xfs/linux-2.6/xfs_ioctl.c index c8f1e632ba94..0264c8719ffd 100644 --- a/fs/xfs/linux-2.6/xfs_ioctl.c +++ b/fs/xfs/linux-2.6/xfs_ioctl.c @@ -319,10 +319,11 @@ xfs_open_by_handle( put_unused_fd(new_fd); return -XFS_ERROR(-PTR_ERR(filp)); } + if (inode->i_mode & S_IFREG) { /* invisible operation should not change atime */ filp->f_flags |= O_NOATIME; - filp->f_op = &xfs_invis_file_operations; + filp->f_mode |= FMODE_NOCMTIME; } fd_install(new_fd, filp); @@ -1328,21 +1329,31 @@ xfs_ioc_getbmapx( return 0; } -int -xfs_ioctl( - xfs_inode_t *ip, +/* + * Note: some of the ioctl's return positive numbers as a + * byte count indicating success, such as readlink_by_handle. + * So we don't "sign flip" like most other routines. This means + * true errors need to be returned as a negative value. + */ +long +xfs_file_ioctl( struct file *filp, - int ioflags, unsigned int cmd, - void __user *arg) + unsigned long p) { struct inode *inode = filp->f_path.dentry->d_inode; - xfs_mount_t *mp = ip->i_mount; + struct xfs_inode *ip = XFS_I(inode); + struct xfs_mount *mp = ip->i_mount; + void __user *arg = (void __user *)p; + int ioflags = 0; int error; - xfs_itrace_entry(XFS_I(inode)); - switch (cmd) { + if (filp->f_mode & FMODE_NOCMTIME) + ioflags |= IO_INVIS; + xfs_itrace_entry(ip); + + switch (cmd) { case XFS_IOC_ALLOCSP: case XFS_IOC_FREESP: case XFS_IOC_RESVSP: diff --git a/fs/xfs/linux-2.6/xfs_ioctl.h b/fs/xfs/linux-2.6/xfs_ioctl.h index d92131c827bc..8c16bf2d7e03 100644 --- a/fs/xfs/linux-2.6/xfs_ioctl.h +++ b/fs/xfs/linux-2.6/xfs_ioctl.h @@ -68,13 +68,13 @@ xfs_attrmulti_attr_remove( __uint32_t flags); extern long -xfs_file_compat_ioctl( - struct file *file, +xfs_file_ioctl( + struct file *filp, unsigned int cmd, - unsigned long arg); + unsigned long p); extern long -xfs_file_compat_invis_ioctl( +xfs_file_compat_ioctl( struct file *file, unsigned int cmd, unsigned long arg); diff --git a/fs/xfs/linux-2.6/xfs_ioctl32.c b/fs/xfs/linux-2.6/xfs_ioctl32.c index b34b3d8892a2..0504cece9f66 100644 --- a/fs/xfs/linux-2.6/xfs_ioctl32.c +++ b/fs/xfs/linux-2.6/xfs_ioctl32.c @@ -599,19 +599,24 @@ out: return error; } -STATIC long -xfs_compat_ioctl( - xfs_inode_t *ip, - struct file *filp, - int ioflags, - unsigned cmd, - void __user *arg) +long +xfs_file_compat_ioctl( + struct file *filp, + unsigned cmd, + unsigned long p) { - struct inode *inode = filp->f_path.dentry->d_inode; - xfs_mount_t *mp = ip->i_mount; - int error; + struct inode *inode = filp->f_path.dentry->d_inode; + struct xfs_inode *ip = XFS_I(inode); + struct xfs_mount *mp = ip->i_mount; + void __user *arg = (void __user *)p; + int ioflags = 0; + int error; + + if (filp->f_mode & FMODE_NOCMTIME) + ioflags |= IO_INVIS; + + xfs_itrace_entry(ip); - xfs_itrace_entry(XFS_I(inode)); switch (cmd) { /* No size or alignment issues on any arch */ case XFS_IOC_DIOINFO: @@ -632,7 +637,7 @@ xfs_compat_ioctl( case XFS_IOC_GOINGDOWN: case XFS_IOC_ERROR_INJECTION: case XFS_IOC_ERROR_CLEARALL: - return xfs_ioctl(ip, filp, ioflags, cmd, arg); + return xfs_file_ioctl(filp, cmd, p); #ifndef BROKEN_X86_ALIGNMENT /* These are handled fine if no alignment issues */ case XFS_IOC_ALLOCSP: @@ -646,7 +651,7 @@ xfs_compat_ioctl( case XFS_IOC_FSGEOMETRY_V1: case XFS_IOC_FSGROWFSDATA: case XFS_IOC_FSGROWFSRT: - return xfs_ioctl(ip, filp, ioflags, cmd, arg); + return xfs_file_ioctl(filp, cmd, p); #else case XFS_IOC_ALLOCSP_32: case XFS_IOC_FREESP_32: @@ -687,7 +692,7 @@ xfs_compat_ioctl( case XFS_IOC_SETXFLAGS_32: case XFS_IOC_GETVERSION_32: cmd = _NATIVE_IOC(cmd, long); - return xfs_ioctl(ip, filp, ioflags, cmd, arg); + return xfs_file_ioctl(filp, cmd, p); case XFS_IOC_SWAPEXT: { struct xfs_swapext sxp; struct compat_xfs_swapext __user *sxu = arg; @@ -738,26 +743,3 @@ xfs_compat_ioctl( return -XFS_ERROR(ENOIOCTLCMD); } } - -long -xfs_file_compat_ioctl( - struct file *filp, - unsigned int cmd, - unsigned long p) -{ - struct inode *inode = filp->f_path.dentry->d_inode; - - return xfs_compat_ioctl(XFS_I(inode), filp, 0, cmd, (void __user *)p); -} - -long -xfs_file_compat_invis_ioctl( - struct file *filp, - unsigned int cmd, - unsigned long p) -{ - struct inode *inode = filp->f_path.dentry->d_inode; - - return xfs_compat_ioctl(XFS_I(inode), filp, IO_INVIS, cmd, - (void __user *)p); -} diff --git a/fs/xfs/linux-2.6/xfs_iops.h b/fs/xfs/linux-2.6/xfs_iops.h index 8b1a1e31dc21..ef41c92ce66e 100644 --- a/fs/xfs/linux-2.6/xfs_iops.h +++ b/fs/xfs/linux-2.6/xfs_iops.h @@ -22,7 +22,6 @@ struct xfs_inode; extern const struct file_operations xfs_file_operations; extern const struct file_operations xfs_dir_file_operations; -extern const struct file_operations xfs_invis_file_operations; extern ssize_t xfs_vn_listxattr(struct dentry *, char *data, size_t size); diff --git a/fs/xfs/xfs_vnodeops.h b/fs/xfs/xfs_vnodeops.h index 2a45b00ad32e..55d955ec4ece 100644 --- a/fs/xfs/xfs_vnodeops.h +++ b/fs/xfs/xfs_vnodeops.h @@ -53,8 +53,6 @@ int xfs_attr_set(struct xfs_inode *dp, const char *name, char *value, int xfs_attr_remove(struct xfs_inode *dp, const char *name, int flags); int xfs_attr_list(struct xfs_inode *dp, char *buffer, int bufsize, int flags, struct attrlist_cursor_kern *cursor); -int xfs_ioctl(struct xfs_inode *ip, struct file *filp, - int ioflags, unsigned int cmd, void __user *arg); ssize_t xfs_read(struct xfs_inode *ip, struct kiocb *iocb, const struct iovec *iovp, unsigned int segs, loff_t *offset, int ioflags); diff --git a/include/linux/fs.h b/include/linux/fs.h index 51bd9370d437..965b9ba3865d 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -81,6 +81,14 @@ extern int dir_notify_enable; #define FMODE_WRITE_IOCTL ((__force fmode_t)128) #define FMODE_NDELAY_NOW ((__force fmode_t)256) +/* + * Don't update ctime and mtime. + * + * Currently a special hack for the XFS open_by_handle ioctl, but we'll + * hopefully graduate it to a proper O_CMTIME flag supported by open(2) soon. + */ +#define FMODE_NOCMTIME ((__force fmode_t)2048) + #define RW_MASK 1 #define RWA_MASK 2 #define READ 0 -- cgit v1.2.3