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/*
* 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 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#include <stdio.h>
#include <strings.h>
#include <unistd.h>
#include <stdarg.h>
#include <fcntl.h>
#include <stdlib.h>
#include <libnvpair.h>
#include <libdevinfo.h>
#include <syslog.h>
#include <sys/param.h>
#include <errno.h>
#include <assert.h>
#include <sys/systeminfo.h>
#include <sys/modctl.h>
#include <sys/fs/sdev_impl.h>
/*
* Private interfaces for non-global /dev profile
*/
/*
* Allocate opaque data structure for passing profile to the kernel for
* the given mount point.
*
* Note that this interface returns an empty, initialized, profile.
* It does not return what may have been previously committed.
*/
int
di_prof_init(const char *mountpt, di_prof_t *profp)
{
nvlist_t *nvl;
if (nvlist_alloc(&nvl, 0, 0))
return (-1);
if (nvlist_add_string(nvl, SDEV_NVNAME_MOUNTPT, mountpt)) {
nvlist_free(nvl);
return (-1);
}
*profp = (di_prof_t)nvl;
return (0);
}
/*
* Free space allocated by di_prof_init().
*/
void
di_prof_fini(di_prof_t prof)
{
nvlist_free((nvlist_t *)prof);
}
/*
* Sends profile to the kernel.
*/
int
di_prof_commit(di_prof_t prof)
{
char *buf = NULL;
size_t buflen = 0;
int rv;
if (nvlist_pack((nvlist_t *)prof, &buf, &buflen, NV_ENCODE_NATIVE, 0))
return (-1);
rv = modctl(MODDEVNAME, MODDEVNAME_PROFILE, buf, buflen);
free(buf);
return (rv);
}
/*
* Add a device or directory to profile's include list.
*
* Note that there is no arbitration between conflicting
* include and exclude profile entries, most recent
* is the winner.
*/
int
di_prof_add_dev(di_prof_t prof, const char *dev)
{
if (nvlist_add_string((nvlist_t *)prof, SDEV_NVNAME_INCLUDE, dev))
return (-1);
return (0);
}
/*
* Add a device or directory to profile's exclude list.
* This can effectively remove a previously committed device.
*/
int
di_prof_add_exclude(di_prof_t prof, const char *dev)
{
if (nvlist_add_string((nvlist_t *)prof, SDEV_NVNAME_EXCLUDE, dev))
return (-1);
return (0);
}
/*
* Add a symlink to profile.
*/
int
di_prof_add_symlink(di_prof_t prof, const char *linkname, const char *target)
{
nvlist_t *nvl = (nvlist_t *)prof;
char *syml[2];
syml[0] = (char *)linkname; /* 1st entry must be the symlink */
syml[1] = (char *)target; /* 2nd entry must be the target */
if (nvlist_add_string_array(nvl, SDEV_NVNAME_SYMLINK, syml, 2))
return (-1);
return (0);
}
/*
* Add a name mapping to profile.
*/
int
di_prof_add_map(di_prof_t prof, const char *source, const char *target)
{
nvlist_t *nvl = (nvlist_t *)prof;
char *map[2];
map[0] = (char *)source; /* 1st entry must be the source */
map[1] = (char *)target; /* 2nd entry must be the target */
if (nvlist_add_string_array(nvl, SDEV_NVNAME_MAP, map, 2))
return (-1);
return (0);
}
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