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[XFS] remove restricted chown parameter from xfs linux 

On Linux all filesystems are supposed to be operating under Posix'
restricted chown. Restricted chown means it restricts chown to the owner
unless you have CAP_FOWNER.

NOTE: that 2 files outside of fs/xfs have been modified too for this
change.

Reviewed-by: Dave Chinner <david@fromorbit.com>

SGI-PV: 988919

SGI-Modid: xfs-linux-melb:xfs-kern:32413a

Signed-off-by: Tim Shimmin <tes@sgi.com>
Signed-off-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: David Chinner <david@fromorbit.com>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
This commit is contained in:
Tim Shimmin 2008-10-30 18:30:48 +11:00 committed by Lachlan McIlroy
parent f3f0d7b026
commit e0b8e8b65d
6 changed files with 3 additions and 30 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
fs/xfs/linux-2.6/xfs_globals.c
View File

@ -26,7 +26,6 @@
*/
xfs_param_t xfs_params = {
/* MIN DFLT MAX */
.restrict_chown = { 0, 1, 1 },
.sgid_inherit = { 0, 0, 1 },
.symlink_mode = { 0, 0, 1 },
.panic_mask = { 0, 0, 255 },

4
fs/xfs/linux-2.6/xfs_ioctl.c
View File

@ -1103,10 +1103,6 @@ xfs_ioctl_setattr(
/*
* Change file ownership. Must be the owner or privileged.
* If the system was configured with the "restricted_chown"
* option, the owner is not permitted to give away the file,
* and can change the group id only to a group of which he
* or she is a member.
*/
if (mask & FSX_PROJID) {
/*

1
fs/xfs/linux-2.6/xfs_linux.h
View File

@ -107,7 +107,6 @@
#undef HAVE_PERCPU_SB /* per cpu superblock counters are a 2.6 feature */
#endif
#define restricted_chown xfs_params.restrict_chown.val
#define irix_sgid_inherit xfs_params.sgid_inherit.val
#define irix_symlink_mode xfs_params.symlink_mode.val
#define xfs_panic_mask xfs_params.panic_mask.val

11
fs/xfs/linux-2.6/xfs_sysctl.c
View File

@ -55,17 +55,6 @@ xfs_stats_clear_proc_handler(
#endif /* CONFIG_PROC_FS */
static ctl_table xfs_table[] = {
{
.ctl_name = XFS_RESTRICT_CHOWN,
.procname = "restrict_chown",
.data = &xfs_params.restrict_chown.val,
.maxlen = sizeof(int),
.mode = 0644,
.proc_handler = &proc_dointvec_minmax,
.strategy = &sysctl_intvec,
.extra1 = &xfs_params.restrict_chown.min,
.extra2 = &xfs_params.restrict_chown.max
},
{
.ctl_name = XFS_SGID_INHERIT,
.procname = "irix_sgid_inherit",

3
fs/xfs/linux-2.6/xfs_sysctl.h
View File

@ -31,7 +31,6 @@ typedef struct xfs_sysctl_val {
} xfs_sysctl_val_t;
typedef struct xfs_param {
xfs_sysctl_val_t restrict_chown;/* Root/non-root can give away files.*/
xfs_sysctl_val_t sgid_inherit; /* Inherit S_ISGID if process' GID is
* not a member of parent dir GID. */
xfs_sysctl_val_t symlink_mode; /* Link creat mode affected by umask */
@ -68,7 +67,7 @@ typedef struct xfs_param {
enum {
/* XFS_REFCACHE_SIZE = 1 */
/* XFS_REFCACHE_PURGE = 2 */
XFS_RESTRICT_CHOWN = 3,
/* XFS_RESTRICT_CHOWN = 3 */
XFS_SGID_INHERIT = 4,
XFS_SYMLINK_MODE = 5,
XFS_PANIC_MASK = 6,

13
fs/xfs/xfs_vnodeops.c
View File

@ -232,10 +232,6 @@ xfs_setattr(
/*
* Change file ownership. Must be the owner or privileged.
* If the system was configured with the "restricted_chown"
* option, the owner is not permitted to give away the file,
* and can change the group id only to a group of which he
* or she is a member.
*/
if (mask & (ATTR_UID|ATTR_GID)) {
/*
@ -259,9 +255,8 @@ xfs_setattr(
* shall be equal to either the group ID or one of the
* supplementary group IDs of the calling process.
*/
if (restricted_chown &&
(iuid != uid || (igid != gid &&
!in_group_p((gid_t)gid))) &&
if ((iuid != uid ||
(igid != gid && !in_group_p((gid_t)gid))) &&
!capable(CAP_CHOWN)) {
code = XFS_ERROR(EPERM);
goto error_return;
@ -455,10 +450,6 @@ xfs_setattr(
/*
* Change file ownership. Must be the owner or privileged.
* If the system was configured with the "restricted_chown"
* option, the owner is not permitted to give away the file,
* and can change the group id only to a group of which he
* or she is a member.
*/
if (mask & (ATTR_UID|ATTR_GID)) {
/*