45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk/*
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * CDDL HEADER START
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk *
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * The contents of this file are subject to the terms of the
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * Common Development and Distribution License (the "License").
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * You may not use this file except in compliance with the License.
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk *
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * or http://www.opensolaris.org/os/licensing.
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * See the License for the specific language governing permissions
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * and limitations under the License.
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk *
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * When distributing Covered Code, include this CDDL HEADER in each
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * If applicable, add the following below this CDDL HEADER, with the
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * fields enclosed by brackets "[]" replaced with your own identifying
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * information: Portions Copyright [yyyy] [name of copyright owner]
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk *
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * CDDL HEADER END
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk */
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk/*
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * Copyright 2006 Sun Microsystems, Inc. All rights reserved.
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * Use is subject to license terms.
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk */
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk#pragma ident "%Z%%M% %I% %E% SMI"
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk#include <stdlib.h>
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk#include <errno.h>
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk#include <tsol/label.h>
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk#include <bsm/devices.h>
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk/*
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * getdevicerange
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * Gets the minimum and maximum labels within which the device can
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * be used. If label range is not specified for the device in
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * device_allocate, defaults to admin_low and admin_high.
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * Returns malloc'ed blrange pointer, or NULL on any error.
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk */
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpkblrange_t *
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpkgetdevicerange(const char *dev)
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk{
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk int err;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk char *lstr;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk devalloc_t *da;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk devmap_t *dm;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk blrange_t *range;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk errno = 0;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk if ((range = malloc(sizeof (blrange_t))) == NULL)
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk return (NULL);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk if ((range->lower_bound = blabel_alloc()) == NULL) {
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk free(range);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk return (NULL);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk }
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk if ((range->upper_bound = blabel_alloc()) == NULL) {
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk blabel_free(range->lower_bound);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk free(range);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk return (NULL);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk }
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk /*
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * If an entry is found for the named device,
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk * return its label range.
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk */
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk setdaent();
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk if ((da = getdanam((char *)dev)) == NULL) {
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk setdmapent();
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk /* check for an actual device file */
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk if ((dm = getdmapdev((char *)dev)) != NULL) {
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk da = getdanam(dm->dmap_devname);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk freedmapent(dm);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk }
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk enddmapent();
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk }
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk enddaent();
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk if (da == NULL) {
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk bsllow(range->lower_bound);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk bslhigh(range->upper_bound);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk } else {
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk lstr = kva_match(da->da_devopts, DAOPT_MINLABEL);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk if (lstr == NULL) {
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk bsllow(range->lower_bound);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk } else if (stobsl(lstr, range->lower_bound, NO_CORRECTION,
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk &err) == 0) {
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk blabel_free(range->lower_bound);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk blabel_free(range->upper_bound);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk free(range);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk errno = ENOTSUP;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk return (NULL);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk }
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk lstr = kva_match(da->da_devopts, DAOPT_MAXLABEL);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk if (lstr == NULL) {
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk bslhigh(range->upper_bound);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk } else if (stobsl(lstr, range->upper_bound, NO_CORRECTION,
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk &err) == 0) {
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk blabel_free(range->lower_bound);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk blabel_free(range->upper_bound);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk free(range);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk errno = ENOTSUP;
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk return (NULL);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk }
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk freedaent(da);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk }
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk return (range);
45916cd2fec6e79bca5dee0421bd39e3c2910d1ejpk}