#include "xfs_trans_space.h"
#include "xfs_acl.h"
#include "xfs_rw.h"
+#include "xfs_vnodeops.h"
/*
* xfs_attr.c
ktrace_t *xfs_attr_trace_buf;
#endif
+STATIC int
+xfs_attr_name_to_xname(
+ struct xfs_name *xname,
+ const char *aname)
+{
+ if (!aname)
+ return EINVAL;
+ xname->name = aname;
+ xname->len = strlen(aname);
+ if (xname->len >= MAXNAMELEN)
+ return EFAULT; /* match IRIX behaviour */
+
+ return 0;
+}
/*========================================================================
* Overall external interface routines.
*========================================================================*/
int
-xfs_attr_fetch(xfs_inode_t *ip, const char *name, int namelen,
- char *value, int *valuelenp, int flags, struct cred *cred)
+xfs_attr_fetch(xfs_inode_t *ip, struct xfs_name *name,
+ char *value, int *valuelenp, int flags)
{
xfs_da_args_t args;
int error;
* Fill in the arg structure for this request.
*/
memset((char *)&args, 0, sizeof(args));
- args.name = name;
- args.namelen = namelen;
+ args.name = name->name;
+ args.namelen = name->len;
args.value = value;
args.valuelen = *valuelenp;
args.flags = flags;
}
int
-xfs_attr_get(bhv_desc_t *bdp, const char *name, char *value, int *valuelenp,
- int flags, struct cred *cred)
+xfs_attr_get(
+ xfs_inode_t *ip,
+ const char *name,
+ char *value,
+ int *valuelenp,
+ int flags)
{
- xfs_inode_t *ip = XFS_BHVTOI(bdp);
- int error, namelen;
+ int error;
+ struct xfs_name xname;
XFS_STATS_INC(xs_attr_get);
- if (!name)
- return(EINVAL);
- namelen = strlen(name);
- if (namelen >= MAXNAMELEN)
- return(EFAULT); /* match IRIX behaviour */
-
if (XFS_FORCED_SHUTDOWN(ip->i_mount))
return(EIO);
+ error = xfs_attr_name_to_xname(&xname, name);
+ if (error)
+ return error;
+
xfs_ilock(ip, XFS_ILOCK_SHARED);
- error = xfs_attr_fetch(ip, name, namelen, value, valuelenp, flags, cred);
+ error = xfs_attr_fetch(ip, &xname, value, valuelenp, flags);
xfs_iunlock(ip, XFS_ILOCK_SHARED);
return(error);
}
-int
-xfs_attr_set_int(xfs_inode_t *dp, const char *name, int namelen,
- char *value, int valuelen, int flags)
+STATIC int
+xfs_attr_set_int(xfs_inode_t *dp, struct xfs_name *name,
+ char *value, int valuelen, int flags)
{
xfs_da_args_t args;
xfs_fsblock_t firstblock;
*/
if (XFS_IFORK_Q(dp) == 0) {
int sf_size = sizeof(xfs_attr_sf_hdr_t) +
- XFS_ATTR_SF_ENTSIZE_BYNAME(namelen, valuelen);
+ XFS_ATTR_SF_ENTSIZE_BYNAME(name->len, valuelen);
if ((error = xfs_bmap_add_attrfork(dp, sf_size, rsvd)))
return(error);
* Fill in the arg structure for this request.
*/
memset((char *)&args, 0, sizeof(args));
- args.name = name;
- args.namelen = namelen;
+ args.name = name->name;
+ args.namelen = name->len;
args.value = value;
args.valuelen = valuelen;
args.flags = flags;
* Determine space new attribute will use, and if it would be
* "local" or "remote" (note: local != inline).
*/
- size = xfs_attr_leaf_newentsize(namelen, valuelen,
+ size = xfs_attr_leaf_newentsize(name->len, valuelen,
mp->m_sb.sb_blocksize, &local);
nblks = XFS_DAENTER_SPACE_RES(mp, XFS_ATTR_FORK);
}
int
-xfs_attr_set(bhv_desc_t *bdp, const char *name, char *value, int valuelen, int flags,
- struct cred *cred)
+xfs_attr_set(
+ xfs_inode_t *dp,
+ const char *name,
+ char *value,
+ int valuelen,
+ int flags)
{
- xfs_inode_t *dp;
- int namelen;
-
- namelen = strlen(name);
- if (namelen >= MAXNAMELEN)
- return EFAULT; /* match IRIX behaviour */
+ int error;
+ struct xfs_name xname;
XFS_STATS_INC(xs_attr_set);
- dp = XFS_BHVTOI(bdp);
if (XFS_FORCED_SHUTDOWN(dp->i_mount))
return (EIO);
- return xfs_attr_set_int(dp, name, namelen, value, valuelen, flags);
+ error = xfs_attr_name_to_xname(&xname, name);
+ if (error)
+ return error;
+
+ return xfs_attr_set_int(dp, &xname, value, valuelen, flags);
}
/*
* Generic handler routine to remove a name from an attribute list.
* Transitions attribute list from Btree to shortform as necessary.
*/
-int
-xfs_attr_remove_int(xfs_inode_t *dp, const char *name, int namelen, int flags)
+STATIC int
+xfs_attr_remove_int(xfs_inode_t *dp, struct xfs_name *name, int flags)
{
xfs_da_args_t args;
xfs_fsblock_t firstblock;
* Fill in the arg structure for this request.
*/
memset((char *)&args, 0, sizeof(args));
- args.name = name;
- args.namelen = namelen;
+ args.name = name->name;
+ args.namelen = name->len;
args.flags = flags;
args.hashval = xfs_da_hashname(args.name, args.namelen);
args.dp = dp;
}
int
-xfs_attr_remove(bhv_desc_t *bdp, const char *name, int flags, struct cred *cred)
+xfs_attr_remove(
+ xfs_inode_t *dp,
+ const char *name,
+ int flags)
{
- xfs_inode_t *dp;
- int namelen;
-
- namelen = strlen(name);
- if (namelen >= MAXNAMELEN)
- return EFAULT; /* match IRIX behaviour */
+ int error;
+ struct xfs_name xname;
XFS_STATS_INC(xs_attr_remove);
- dp = XFS_BHVTOI(bdp);
if (XFS_FORCED_SHUTDOWN(dp->i_mount))
return (EIO);
+ error = xfs_attr_name_to_xname(&xname, name);
+ if (error)
+ return error;
+
xfs_ilock(dp, XFS_ILOCK_SHARED);
if (XFS_IFORK_Q(dp) == 0 ||
(dp->i_d.di_aformat == XFS_DINODE_FMT_EXTENTS &&
}
xfs_iunlock(dp, XFS_ILOCK_SHARED);
- return xfs_attr_remove_int(dp, name, namelen, flags);
+ return xfs_attr_remove_int(dp, &xname, flags);
}
-int /* error */
+STATIC int
xfs_attr_list_int(xfs_attr_list_context_t *context)
{
int error;
* success.
*/
int
-xfs_attr_list(bhv_desc_t *bdp, char *buffer, int bufsize, int flags,
- attrlist_cursor_kern_t *cursor, struct cred *cred)
+xfs_attr_list(
+ xfs_inode_t *dp,
+ char *buffer,
+ int bufsize,
+ int flags,
+ attrlist_cursor_kern_t *cursor)
{
xfs_attr_list_context_t context;
- xfs_inode_t *dp;
int error;
XFS_STATS_INC(xs_attr_list);
/*
* Initialize the output buffer.
*/
- context.dp = dp = XFS_BHVTOI(bdp);
+ context.dp = dp;
context.cursor = cursor;
context.count = 0;
context.dupcnt = 0;
* This leaf block cannot have a "remote" value, we only call this routine
* if bmap_one_block() says there is only one block (ie: no remote blks).
*/
-int
+STATIC int
xfs_attr_leaf_addname(xfs_da_args_t *args)
{
xfs_inode_t *dp;
attr_generic_set(
bhv_vnode_t *vp, char *name, void *data, size_t size, int xflags)
{
- return -bhv_vop_attr_set(vp, name, data, size, xflags, NULL);
+ return -xfs_attr_set(xfs_vtoi(vp), name, data, size, xflags);
}
STATIC int
{
int error, asize = size;
- error = bhv_vop_attr_get(vp, name, data, &asize, xflags, NULL);
+ error = xfs_attr_get(xfs_vtoi(vp), name, data, &asize, xflags);
if (!error)
return asize;
return -error;
attr_generic_remove(
bhv_vnode_t *vp, char *name, int xflags)
{
- return -bhv_vop_attr_remove(vp, name, xflags, NULL);
+ return -xfs_attr_remove(xfs_vtoi(vp), name, xflags);
}
STATIC int
attrlist_cursor_kern_t cursor = { 0 };
int error;
- error = bhv_vop_attr_list(vp, data, size, xflags, &cursor, NULL);
+ error = xfs_attr_list(xfs_vtoi(vp), data, size, xflags, &cursor);
if (error > 0)
return -error;
*result = -error;
return NULL;
}
-/*
- * Some checks to prevent people abusing EAs to get over quota:
- * - Don't allow modifying user EAs on devices/symlinks;
- * - Don't allow modifying user EAs if sticky bit set;
- */
-STATIC int
-attr_user_capable(
- bhv_vnode_t *vp,
- cred_t *cred)
-{
- struct inode *inode = vn_to_inode(vp);
-
- if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
- return -EPERM;
- if (!S_ISREG(inode->i_mode) && !S_ISDIR(inode->i_mode) &&
- !capable(CAP_SYS_ADMIN))
- return -EPERM;
- if (S_ISDIR(inode->i_mode) && (inode->i_mode & S_ISVTX) &&
- (current_fsuid(cred) != inode->i_uid) && !capable(CAP_FOWNER))
- return -EPERM;
- return 0;
-}
-
-STATIC int
-attr_trusted_capable(
- bhv_vnode_t *vp,
- cred_t *cred)
-{
- struct inode *inode = vn_to_inode(vp);
-
- if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
- return -EPERM;
- if (!capable(CAP_SYS_ADMIN))
- return -EPERM;
- return 0;
-}
-
-STATIC int
-attr_secure_capable(
- bhv_vnode_t *vp,
- cred_t *cred)
-{
- return -ENOSECURITY;
-}
-
STATIC int
attr_system_set(
bhv_vnode_t *vp, char *name, void *data, size_t size, int xflags)
.attr_get = attr_system_get,
.attr_set = attr_system_set,
.attr_remove = attr_system_remove,
- .attr_capable = (attrcapable_t)fs_noerr,
};
struct attrnames attr_trusted = {
.attr_get = attr_generic_get,
.attr_set = attr_generic_set,
.attr_remove = attr_generic_remove,
- .attr_capable = attr_trusted_capable,
};
struct attrnames attr_secure = {
.attr_get = attr_generic_get,
.attr_set = attr_generic_set,
.attr_remove = attr_generic_remove,
- .attr_capable = attr_secure_capable,
};
struct attrnames attr_user = {
.attr_get = attr_generic_get,
.attr_set = attr_generic_set,
.attr_remove = attr_generic_remove,
- .attr_capable = attr_user_capable,
};
struct attrnames *attr_namespaces[] =
projects / linux-2.6-omap-h63xx.git / blobdiff