libcontract/common/device.c

25e8c5aa2b496d9026e958ac731a610167574f59vikram/*
25e8c5aa2b496d9026e958ac731a610167574f59vikram * CDDL HEADER START
25e8c5aa2b496d9026e958ac731a610167574f59vikram *
25e8c5aa2b496d9026e958ac731a610167574f59vikram * The contents of this file are subject to the terms of the
25e8c5aa2b496d9026e958ac731a610167574f59vikram * Common Development and Distribution License (the "License").
25e8c5aa2b496d9026e958ac731a610167574f59vikram * You may not use this file except in compliance with the License.
25e8c5aa2b496d9026e958ac731a610167574f59vikram *
25e8c5aa2b496d9026e958ac731a610167574f59vikram * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
25e8c5aa2b496d9026e958ac731a610167574f59vikram * or http://www.opensolaris.org/os/licensing.
25e8c5aa2b496d9026e958ac731a610167574f59vikram * See the License for the specific language governing permissions
25e8c5aa2b496d9026e958ac731a610167574f59vikram * and limitations under the License.
25e8c5aa2b496d9026e958ac731a610167574f59vikram *
25e8c5aa2b496d9026e958ac731a610167574f59vikram * When distributing Covered Code, include this CDDL HEADER in each
25e8c5aa2b496d9026e958ac731a610167574f59vikram * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
25e8c5aa2b496d9026e958ac731a610167574f59vikram * If applicable, add the following below this CDDL HEADER, with the
25e8c5aa2b496d9026e958ac731a610167574f59vikram * fields enclosed by brackets "[]" replaced with your own identifying
25e8c5aa2b496d9026e958ac731a610167574f59vikram * information: Portions Copyright [yyyy] [name of copyright owner]
25e8c5aa2b496d9026e958ac731a610167574f59vikram *
25e8c5aa2b496d9026e958ac731a610167574f59vikram * CDDL HEADER END
25e8c5aa2b496d9026e958ac731a610167574f59vikram */
25e8c5aa2b496d9026e958ac731a610167574f59vikram/*
7b209c2cc5ea45251aba06dcc6181d3f23da807aacruz * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
25e8c5aa2b496d9026e958ac731a610167574f59vikram * Use is subject to license terms.
25e8c5aa2b496d9026e958ac731a610167574f59vikram */
25e8c5aa2b496d9026e958ac731a610167574f59vikram
25e8c5aa2b496d9026e958ac731a610167574f59vikram#pragma ident   "%Z%%M% %I% %E% SMI"
25e8c5aa2b496d9026e958ac731a610167574f59vikram
25e8c5aa2b496d9026e958ac731a610167574f59vikram#include <sys/ctfs.h>
25e8c5aa2b496d9026e958ac731a610167574f59vikram#include <sys/contract.h>
25e8c5aa2b496d9026e958ac731a610167574f59vikram#include <sys/contract/device.h>
25e8c5aa2b496d9026e958ac731a610167574f59vikram#include <errno.h>
25e8c5aa2b496d9026e958ac731a610167574f59vikram#include <unistd.h>
25e8c5aa2b496d9026e958ac731a610167574f59vikram#include <string.h>
25e8c5aa2b496d9026e958ac731a610167574f59vikram#include <libnvpair.h>
25e8c5aa2b496d9026e958ac731a610167574f59vikram#include <limits.h>
25e8c5aa2b496d9026e958ac731a610167574f59vikram#include <sys/stat.h>
25e8c5aa2b496d9026e958ac731a610167574f59vikram#include <libcontract.h>
25e8c5aa2b496d9026e958ac731a610167574f59vikram#include "libcontract_impl.h"
25e8c5aa2b496d9026e958ac731a610167574f59vikram
25e8c5aa2b496d9026e958ac731a610167574f59vikram/*
25e8c5aa2b496d9026e958ac731a610167574f59vikram * Device contract template routines
25e8c5aa2b496d9026e958ac731a610167574f59vikram */
25e8c5aa2b496d9026e958ac731a610167574f59vikram
25e8c5aa2b496d9026e958ac731a610167574f59vikramint
25e8c5aa2b496d9026e958ac731a610167574f59vikramct_dev_tmpl_set_minor(int fd, char *minor)
25e8c5aa2b496d9026e958ac731a610167574f59vikram{
7b209c2cc5ea45251aba06dcc6181d3f23da807aacruz    return (ct_tmpl_set_internal_string(fd, CTDP_MINOR, minor));
25e8c5aa2b496d9026e958ac731a610167574f59vikram}
25e8c5aa2b496d9026e958ac731a610167574f59vikram
25e8c5aa2b496d9026e958ac731a610167574f59vikramint
25e8c5aa2b496d9026e958ac731a610167574f59vikramct_dev_tmpl_set_aset(int fd, uint_t aset)
25e8c5aa2b496d9026e958ac731a610167574f59vikram{
25e8c5aa2b496d9026e958ac731a610167574f59vikram    return (ct_tmpl_set_internal(fd, CTDP_ACCEPT, aset));
25e8c5aa2b496d9026e958ac731a610167574f59vikram}
25e8c5aa2b496d9026e958ac731a610167574f59vikram
25e8c5aa2b496d9026e958ac731a610167574f59vikramint
25e8c5aa2b496d9026e958ac731a610167574f59vikramct_dev_tmpl_set_noneg(int fd)
25e8c5aa2b496d9026e958ac731a610167574f59vikram{
25e8c5aa2b496d9026e958ac731a610167574f59vikram    return (ct_tmpl_set_internal(fd, CTDP_NONEG, CTDP_NONEG_SET));
25e8c5aa2b496d9026e958ac731a610167574f59vikram}
25e8c5aa2b496d9026e958ac731a610167574f59vikram
25e8c5aa2b496d9026e958ac731a610167574f59vikramint
25e8c5aa2b496d9026e958ac731a610167574f59vikramct_dev_tmpl_clear_noneg(int fd)
25e8c5aa2b496d9026e958ac731a610167574f59vikram{
25e8c5aa2b496d9026e958ac731a610167574f59vikram    return (ct_tmpl_set_internal(fd, CTDP_NONEG, CTDP_NONEG_CLEAR));
25e8c5aa2b496d9026e958ac731a610167574f59vikram}
25e8c5aa2b496d9026e958ac731a610167574f59vikram
25e8c5aa2b496d9026e958ac731a610167574f59vikramint
25e8c5aa2b496d9026e958ac731a610167574f59vikramct_dev_tmpl_get_minor(int fd, char *buf, size_t *buflenp)
25e8c5aa2b496d9026e958ac731a610167574f59vikram{
7b209c2cc5ea45251aba06dcc6181d3f23da807aacruz    int ret = ct_tmpl_get_internal_string(fd, CTDP_MINOR, buf, *buflenp);
25e8c5aa2b496d9026e958ac731a610167574f59vikram
7b209c2cc5ea45251aba06dcc6181d3f23da807aacruz    if (ret == -1)
7b209c2cc5ea45251aba06dcc6181d3f23da807aacruz        return (errno);
25e8c5aa2b496d9026e958ac731a610167574f59vikram
7b209c2cc5ea45251aba06dcc6181d3f23da807aacruz    if (ret >= *buflenp) {
7b209c2cc5ea45251aba06dcc6181d3f23da807aacruz        *buflenp = ret + 1;
25e8c5aa2b496d9026e958ac731a610167574f59vikram        return (EOVERFLOW);
25e8c5aa2b496d9026e958ac731a610167574f59vikram    }
25e8c5aa2b496d9026e958ac731a610167574f59vikram
25e8c5aa2b496d9026e958ac731a610167574f59vikram    return (0);
25e8c5aa2b496d9026e958ac731a610167574f59vikram}
25e8c5aa2b496d9026e958ac731a610167574f59vikram
25e8c5aa2b496d9026e958ac731a610167574f59vikramint
25e8c5aa2b496d9026e958ac731a610167574f59vikramct_dev_tmpl_get_aset(int fd, uint_t *aset)
25e8c5aa2b496d9026e958ac731a610167574f59vikram{
25e8c5aa2b496d9026e958ac731a610167574f59vikram    return (ct_tmpl_get_internal(fd, CTDP_ACCEPT, aset));
25e8c5aa2b496d9026e958ac731a610167574f59vikram}
25e8c5aa2b496d9026e958ac731a610167574f59vikram
25e8c5aa2b496d9026e958ac731a610167574f59vikramint
25e8c5aa2b496d9026e958ac731a610167574f59vikramct_dev_tmpl_get_noneg(int fd, uint_t *negp)
25e8c5aa2b496d9026e958ac731a610167574f59vikram{
25e8c5aa2b496d9026e958ac731a610167574f59vikram    return (ct_tmpl_get_internal(fd, CTDP_NONEG, negp));
25e8c5aa2b496d9026e958ac731a610167574f59vikram}
25e8c5aa2b496d9026e958ac731a610167574f59vikram
25e8c5aa2b496d9026e958ac731a610167574f59vikram/*
25e8c5aa2b496d9026e958ac731a610167574f59vikram * Device contract event routines
25e8c5aa2b496d9026e958ac731a610167574f59vikram */
25e8c5aa2b496d9026e958ac731a610167574f59vikram
25e8c5aa2b496d9026e958ac731a610167574f59vikram/*
25e8c5aa2b496d9026e958ac731a610167574f59vikram * No device contract specific event routines
25e8c5aa2b496d9026e958ac731a610167574f59vikram */
25e8c5aa2b496d9026e958ac731a610167574f59vikram
25e8c5aa2b496d9026e958ac731a610167574f59vikram
25e8c5aa2b496d9026e958ac731a610167574f59vikram/*
25e8c5aa2b496d9026e958ac731a610167574f59vikram * Device contract status routines
25e8c5aa2b496d9026e958ac731a610167574f59vikram */
25e8c5aa2b496d9026e958ac731a610167574f59vikram
25e8c5aa2b496d9026e958ac731a610167574f59vikramint
25e8c5aa2b496d9026e958ac731a610167574f59vikramct_dev_status_get_aset(ct_stathdl_t stathdl, uint_t *aset)
25e8c5aa2b496d9026e958ac731a610167574f59vikram{
25e8c5aa2b496d9026e958ac731a610167574f59vikram    struct ctlib_status_info *info = stathdl;
25e8c5aa2b496d9026e958ac731a610167574f59vikram
25e8c5aa2b496d9026e958ac731a610167574f59vikram    if (info->status.ctst_type != CTT_DEVICE)
25e8c5aa2b496d9026e958ac731a610167574f59vikram        return (EINVAL);
25e8c5aa2b496d9026e958ac731a610167574f59vikram
25e8c5aa2b496d9026e958ac731a610167574f59vikram    if (info->nvl == NULL)
25e8c5aa2b496d9026e958ac731a610167574f59vikram        return (ENOENT);
25e8c5aa2b496d9026e958ac731a610167574f59vikram
25e8c5aa2b496d9026e958ac731a610167574f59vikram    return (nvlist_lookup_uint32(info->nvl, CTDS_ASET, aset));
25e8c5aa2b496d9026e958ac731a610167574f59vikram}
25e8c5aa2b496d9026e958ac731a610167574f59vikram
25e8c5aa2b496d9026e958ac731a610167574f59vikramint
25e8c5aa2b496d9026e958ac731a610167574f59vikramct_dev_status_get_noneg(ct_stathdl_t stathdl, uint_t *negp)
25e8c5aa2b496d9026e958ac731a610167574f59vikram{
25e8c5aa2b496d9026e958ac731a610167574f59vikram    struct ctlib_status_info *info = stathdl;
25e8c5aa2b496d9026e958ac731a610167574f59vikram
25e8c5aa2b496d9026e958ac731a610167574f59vikram    if (info->status.ctst_type != CTT_DEVICE)
25e8c5aa2b496d9026e958ac731a610167574f59vikram        return (EINVAL);
25e8c5aa2b496d9026e958ac731a610167574f59vikram
25e8c5aa2b496d9026e958ac731a610167574f59vikram    if (info->nvl == NULL)
25e8c5aa2b496d9026e958ac731a610167574f59vikram        return (ENOENT);
25e8c5aa2b496d9026e958ac731a610167574f59vikram
25e8c5aa2b496d9026e958ac731a610167574f59vikram    return (nvlist_lookup_uint32(info->nvl, CTDS_NONEG, negp));
25e8c5aa2b496d9026e958ac731a610167574f59vikram}
25e8c5aa2b496d9026e958ac731a610167574f59vikram
25e8c5aa2b496d9026e958ac731a610167574f59vikramint
25e8c5aa2b496d9026e958ac731a610167574f59vikramct_dev_status_get_dev_state(ct_stathdl_t stathdl, uint_t *statep)
25e8c5aa2b496d9026e958ac731a610167574f59vikram{
25e8c5aa2b496d9026e958ac731a610167574f59vikram    struct ctlib_status_info *info = stathdl;
25e8c5aa2b496d9026e958ac731a610167574f59vikram
25e8c5aa2b496d9026e958ac731a610167574f59vikram    if (info->status.ctst_type != CTT_DEVICE)
25e8c5aa2b496d9026e958ac731a610167574f59vikram        return (EINVAL);
25e8c5aa2b496d9026e958ac731a610167574f59vikram
25e8c5aa2b496d9026e958ac731a610167574f59vikram    if (info->nvl == NULL)
25e8c5aa2b496d9026e958ac731a610167574f59vikram        return (ENOENT);
25e8c5aa2b496d9026e958ac731a610167574f59vikram
25e8c5aa2b496d9026e958ac731a610167574f59vikram    return (nvlist_lookup_uint32(info->nvl, CTDS_STATE, statep));
25e8c5aa2b496d9026e958ac731a610167574f59vikram}
25e8c5aa2b496d9026e958ac731a610167574f59vikram
25e8c5aa2b496d9026e958ac731a610167574f59vikramint
25e8c5aa2b496d9026e958ac731a610167574f59vikramct_dev_status_get_minor(ct_stathdl_t stathdl, char **bufp)
25e8c5aa2b496d9026e958ac731a610167574f59vikram{
25e8c5aa2b496d9026e958ac731a610167574f59vikram    int error;
25e8c5aa2b496d9026e958ac731a610167574f59vikram    struct ctlib_status_info *info = stathdl;
25e8c5aa2b496d9026e958ac731a610167574f59vikram
25e8c5aa2b496d9026e958ac731a610167574f59vikram    if (bufp == NULL)
25e8c5aa2b496d9026e958ac731a610167574f59vikram        return (EINVAL);
25e8c5aa2b496d9026e958ac731a610167574f59vikram
25e8c5aa2b496d9026e958ac731a610167574f59vikram    if (info->status.ctst_type != CTT_DEVICE)
25e8c5aa2b496d9026e958ac731a610167574f59vikram        return (EINVAL);
25e8c5aa2b496d9026e958ac731a610167574f59vikram
25e8c5aa2b496d9026e958ac731a610167574f59vikram    if (info->nvl == NULL)
25e8c5aa2b496d9026e958ac731a610167574f59vikram        return (ENOENT);
25e8c5aa2b496d9026e958ac731a610167574f59vikram
25e8c5aa2b496d9026e958ac731a610167574f59vikram    error = nvlist_lookup_string(info->nvl, CTDS_MINOR, bufp);
25e8c5aa2b496d9026e958ac731a610167574f59vikram    if (error != 0) {
25e8c5aa2b496d9026e958ac731a610167574f59vikram        return (error);
25e8c5aa2b496d9026e958ac731a610167574f59vikram    }
25e8c5aa2b496d9026e958ac731a610167574f59vikram
25e8c5aa2b496d9026e958ac731a610167574f59vikram    return (0);
25e8c5aa2b496d9026e958ac731a610167574f59vikram}