/*
* lfs_sane_rename: The hairiest vop, with the saner API.
*
* Arguments:
*
* . fdvp (from directory vnode),
* . fcnp (from component name),
* . tdvp (to directory vnode),
* . tcnp (to component name),
* . cred (credentials structure), and
* . posixly_correct (flag for behaviour if target & source link same file).
*
* fdvp and tdvp may be the same, and must be referenced and unlocked.
*/
static int
lfs_sane_rename(
struct vnode *fdvp, struct componentname *fcnp,
struct vnode *tdvp, struct componentname *tcnp,
kauth_cred_t cred, bool posixly_correct)
{
struct ulfs_lookup_results fulr, tulr;
/*
* XXX Provisional kludge -- ulfs_lookup does not reject rename
* of . or .. (from or to), so we hack it here. This is not
* the right place: it should be caller's responsibility to
* reject this case.
*/
KASSERT(fcnp != NULL);
KASSERT(tcnp != NULL);
KASSERT(fcnp != tcnp);
KASSERT(fcnp->cn_nameptr != NULL);
KASSERT(tcnp->cn_nameptr != NULL);
if ((fcnp->cn_flags | tcnp->cn_flags) & ISDOTDOT)
return EINVAL; /* XXX EISDIR? */
if ((fcnp->cn_namelen == 1) && (fcnp->cn_nameptr[0] == '.'))
return EINVAL;
if ((tcnp->cn_namelen == 1) && (tcnp->cn_nameptr[0] == '.'))
return EINVAL;
return genfs_sane_rename(&lfs_genfs_rename_ops,
fdvp, fcnp, &fulr, tdvp, tcnp, &tulr,
cred, posixly_correct);
}
/*
* udf_sane_rename: The hairiest vop, with the saner API.
*
* Arguments:
*
* . fdvp (from directory vnode),
* . fcnp (from component name),
* . tdvp (to directory vnode),
* . tcnp (to component name),
* . cred (credentials structure), and
* . posixly_correct (flag for behaviour if target & source link same file).
*
* fdvp and tdvp may be the same, and must be referenced and unlocked.
*/
static int
udf_sane_rename( struct vnode *fdvp, struct componentname *fcnp,
struct vnode *tdvp, struct componentname *tcnp,
kauth_cred_t cred, bool posixly_correct)
{
DPRINTF(CALL, ("udf_sane_rename '%s' -> '%s'\n",
fcnp->cn_nameptr, tcnp->cn_nameptr));
return genfs_sane_rename(&udf_genfs_rename_ops,
fdvp, fcnp, NULL, tdvp, tcnp, NULL,
cred, posixly_correct);
}
/*
* mumblefs_sane_rename: The hairiest vop, with the saner API.
*
* Arguments:
*
* . fdvp (from directory vnode),
* . fcnp (from component name),
* . tdvp (to directory vnode),
* . tcnp (to component name),
* . cred (credentials structure), and
* . posixly_correct (flag for behaviour if target & source link same file).
*
* fdvp and tdvp may be the same, and must be referenced and unlocked.
*/
static int
mumblefs_sane_rename(
struct vnode *fdvp, struct componentname *fcnp,
struct vnode *tdvp, struct componentname *tcnp,
kauth_cred_t cred, bool posixly_correct)
{
struct mumblefs_lookup_results fulr, tulr;
return genfs_sane_rename(&mumblefs_genfs_rename_ops,
fdvp, fcnp, &fulr, tdvp, tcnp, &tulr,
cred, posixly_correct);
}