schemes/dev/scheme.c

	scheme.c revision 24db46411fd54f70c35b94bb952eb7ba040e43b4
/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */

/*
 * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#pragma ident   "%Z%%M% %I% %E% SMI"

#include <fm/fmd_fmri.h>
#include <fm/libtopo.h>
#include <fm/topo_mod.h>
#include <libdevinfo.h>
#include <alloca.h>
#include <string.h>

int
fmd_fmri_init(void)
{
    return (0);
}

void
fmd_fmri_fini(void)
{
}

ssize_t
fmd_fmri_nvl2str(nvlist_t *nvl, char *buf, size_t buflen)
{
    int err;
    ssize_t len;
    topo_hdl_t *thp;
    char *str;

    if ((thp = fmd_fmri_topo_hold(TOPO_VERSION)) == NULL)
        return (fmd_fmri_set_errno(EINVAL));

    if (topo_fmri_nvl2str(thp, nvl, &str, &err) != 0) {
        fmd_fmri_topo_rele(thp);
        return (fmd_fmri_set_errno(EINVAL));
    }

    if (buf != NULL)
        len = snprintf(buf, buflen, "%s", str);
    else
        len = strlen(str);

    topo_hdl_strfree(thp, str);
    fmd_fmri_topo_rele(thp);

    return (len);
}

int
fmd_fmri_present(nvlist_t *nvl)
{
    int err, present;
    topo_hdl_t *thp;

    if ((thp = fmd_fmri_topo_hold(TOPO_VERSION)) == NULL)
        return (fmd_fmri_set_errno(EINVAL));
    err = 0;
    present = topo_fmri_present(thp, nvl, &err);
    fmd_fmri_topo_rele(thp);

    if (err != 0)
        return (0);
    else
        return (present);
}

int
fmd_fmri_unusable(nvlist_t *nvl)
{
    uint8_t version;
    int err, unusable;
    topo_hdl_t *thp;

    if (nvlist_lookup_uint8(nvl, FM_VERSION, &version) != 0 ||
        version > FM_DEV_SCHEME_VERSION)
        return (fmd_fmri_set_errno(EINVAL));

    if ((thp = fmd_fmri_topo_hold(TOPO_VERSION)) == NULL)
        return (fmd_fmri_set_errno(EINVAL));
    err = 0;
    unusable = topo_fmri_unusable(thp, nvl, &err);
    fmd_fmri_topo_rele(thp);

    if (err != 0)
        return (0);
    else
        return (unusable);
}