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Implement vnode operations for setting and removing extended attributes.

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This commit is contained in:
Craig Rodrigues 2006-06-11 03:32:50 +00:00
parent c45dc21431
commit 277815d5c2
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=159498
1 changed files with 95 additions and 1 deletions
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96
sys/gnu/fs/xfs/FreeBSD/xfs_vnops.c
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@ -92,6 +92,7 @@ static vop_bmap_t _xfs_bmap;
static vop_cachedlookup_t _xfs_cachedlookup;
static vop_close_t _xfs_close;
static vop_create_t _xfs_create;
static vop_deleteextattr_t _xfs_deleteextattr;
static vop_fsync_t _xfs_fsync;
static vop_getattr_t _xfs_getattr;
static vop_getextattr_t _xfs_getextattr;
@ -110,6 +111,7 @@ static vop_remove_t _xfs_remove;
static vop_rename_t _xfs_rename;
static vop_rmdir_t _xfs_rmdir;
static vop_setattr_t _xfs_setattr;
static vop_setextattr_t _xfs_setextattr;
static vop_strategy_t _xfs_strategy;
static vop_symlink_t _xfs_symlink;
static vop_write_t _xfs_write;
@ -122,6 +124,7 @@ struct vop_vector xfs_vnops = {
.vop_cachedlookup = _xfs_cachedlookup,
.vop_close = _xfs_close,
.vop_create = _xfs_create,
.vop_deleteextattr = _xfs_deleteextattr,
.vop_fsync = _xfs_fsync,
.vop_getattr = _xfs_getattr,
.vop_getextattr = _xfs_getextattr,
@ -141,6 +144,7 @@ struct vop_vector xfs_vnops = {
.vop_rename = _xfs_rename,
.vop_rmdir = _xfs_rmdir,
.vop_setattr = _xfs_setattr,
.vop_setextattr = _xfs_setextattr,
.vop_strategy = _xfs_strategy,
.vop_symlink = _xfs_symlink,
.vop_write = _xfs_write,
@ -1586,4 +1590,94 @@ _xfs_listextattr(
*ap->a_size = attrnames_len;
return (error);
}
}
static int
_xfs_setextattr(struct vop_setextattr_args *ap)
/*
vop_setextattr {
IN struct vnode *a_vp;
IN int a_attrnamespace;
IN const char *a_name;
INOUT struct uio *a_uio;
IN struct ucred *a_cred;
IN struct thread *a_td;
};
*/
{
char *val;
size_t vallen;
int error, xfs_flags;
if (ap->a_vp->v_type == VCHR)
return (EOPNOTSUPP);
if (ap->a_uio == NULL)
return (EINVAL);
vallen = ap->a_uio->uio_resid;
if (vallen > ATTR_MAX_VALUELEN)
return (EOVERFLOW);
if (ap->a_name[0] == '\0')
return (EINVAL);
error = extattr_check_cred(ap->a_vp, ap->a_attrnamespace,
ap->a_cred, ap->a_td, VWRITE);
if (error)
return (error);
xfs_flags = 0;
if (ap->a_attrnamespace & EXTATTR_NAMESPACE_USER)
xfs_flags |= ATTR_KERNORMALS;
if (ap->a_attrnamespace & EXTATTR_NAMESPACE_SYSTEM)
xfs_flags |= ATTR_KERNROOTLS;
val = (char *)kmem_zalloc(vallen, KM_SLEEP);
if (val == NULL)
return (ENOMEM);
error = uiomove(val, (int)vallen, ap->a_uio);
if (error)
goto err_out;
XVOP_ATTR_SET(VPTOXFSVP(ap->a_vp), ap->a_name, val, vallen, xfs_flags,
ap->a_cred, error);
err_out:
kmem_free(val, vallen);
return(error);
}
static int
_xfs_deleteextattr(struct vop_deleteextattr_args *ap)
/*
vop_deleteextattr {
IN struct vnode *a_vp;
IN int a_attrnamespace;
IN const char *a_name;
IN struct ucred *a_cred;
IN struct thread *a_td;
};
*/
{
int error, xfs_flags;
if (ap->a_vp->v_type == VCHR)
return (EOPNOTSUPP);
if (ap->a_name[0] == '\0')
return (EINVAL);
error = extattr_check_cred(ap->a_vp, ap->a_attrnamespace,
ap->a_cred, ap->a_td, VWRITE);
if (error)
return (error);
xfs_flags = 0;
if (ap->a_attrnamespace & EXTATTR_NAMESPACE_USER)
xfs_flags |= ATTR_KERNORMALS;
if (ap->a_attrnamespace & EXTATTR_NAMESPACE_SYSTEM)
xfs_flags |= ATTR_KERNROOTLS;
XVOP_ATTR_REMOVE(VPTOXFSVP(ap->a_vp), ap->a_name, xfs_flags,
ap->a_cred, error);
return (error);
}