metaparam.c revision d7cd82522afdd890a66c7600b499590ad44e84bd
/*
* 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 2006 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* change metadevice parameters
*/
#include <meta.h>
#include <sdssc.h>
/*
* print usage message
*/
static void
usage(
mdsetname_t *sp,
int eval
)
{
(void) fprintf(stderr, gettext("\
usage: %s [-s setname] [options] concat/stripe | RAID\n\
%s [-s setname] [options] mirror\n\
\n\
Concat/Stripe or RAID options:\n\
-h hotspare_pool | \"none\"\n\
\n\
Mirror options:\n\
-r roundrobin | geometric | first\n\
-w parallel | serial\n\
-p 0-%d\n"), myname, myname, MD_PASS_MAX);
md_exit(sp, eval);
}
/*
* do mirror parameters
*/
static int
mirror_params(
mdsetname_t *sp,
mdname_t *mirnp,
int argc,
char *argv[],
md_error_t *ep
)
{
mm_params_t mmp;
int modified = 0;
int c;
/* we must have a set */
assert(sp != NULL);
assert(sp->setno == MD_MIN2SET(meta_getminor(mirnp->dev)));
/* initialize */
(void) memset(&mmp, '\0', sizeof (mmp));
/* reset and parse args */
optind = 1;
opterr = 1;
while ((c = getopt(argc, argv, "s:r:w:p:")) != -1) {
switch (c) {
case 's':
break;
case 'r':
if (name_to_rd_opt(mirnp->cname, optarg,
&mmp.read_option, ep) != 0) {
return (-1);
}
mmp.change_read_option = 1;
modified = 1;
break;
case 'w':
if (name_to_wr_opt(mirnp->cname, optarg,
&mmp.write_option, ep) != 0) {
return (-1);
}
mmp.change_write_option = 1;
modified = 1;
break;
case 'p':
if (name_to_pass_num(mirnp->cname, optarg,
&mmp.pass_num, ep) != 0) {
return (-1);
}
mmp.change_pass_num = 1;
modified = 1;
break;
default:
usage(sp, 1);
/*NOTREACHED*/
break;
}
}
argc -= optind;
argv += optind;
if (argc != 1)
usage(sp, 1);
/* if just printing */
if (! modified) {
if (meta_mirror_get_params(sp, mirnp, &mmp, ep) != 0)
return (-1);
(void) printf(
gettext(
"%s: Mirror current parameters are:\n"),
mirnp->cname);
if (meta_print_mirror_options(mmp.read_option,
mmp.write_option, mmp.pass_num, 0, NULL,
sp, stdout, ep) != 0) {
return (-1);
}
}
/* otherwise, change parameters */
else {
if (meta_mirror_set_params(sp, mirnp, &mmp, ep) != 0)
return (-1);
/* update md.cf */
if (meta_update_md_cf(sp, ep) != 0)
return (-1);
}
/* return success */
return (0);
}
/*
* do stripe parameters
*/
static int
stripe_params(
mdsetname_t *sp,
mdname_t *stripenp,
int argc,
char *argv[],
md_error_t *ep
)
{
ms_params_t msp;
int modified = 0;
mdhspname_t *hspnp;
int c;
/* we must have a set */
assert(sp != NULL);
assert(sp->setno == MD_MIN2SET(meta_getminor(stripenp->dev)));
/* initialize */
(void) memset(&msp, '\0', sizeof (msp));
/* reset and parse args */
optind = 1;
opterr = 1;
while ((c = getopt(argc, argv, "s:h:")) != -1) {
switch (c) {
case 's':
break;
case 'h':
if (meta_is_none(optarg)) {
msp.hsp_id = MD_HSP_NONE;
} else if ((hspnp = metahspname(&sp, optarg,
ep)) == NULL) {
return (-1);
} else if (metachkhsp(sp, hspnp, ep) != 0) {
return (-1);
} else {
msp.hsp_id = hspnp->hsp;
}
msp.change_hsp_id = 1;
modified = 1;
break;
default:
usage(sp, 1);
/*NOTREACHED*/
break;
}
}
argc -= optind;
argv += optind;
if (argc != 1)
usage(sp, 1);
/* if just printing */
if (! modified) {
if (meta_stripe_get_params(sp, stripenp, &msp, ep) != 0)
return (-1);
if (msp.hsp_id == MD_HSP_NONE)
hspnp = NULL;
else if ((hspnp = metahsphspname(&sp, msp.hsp_id, ep)) == NULL)
return (-1);
(void) printf(gettext(
"%s: Concat/Stripe current parameters are:\n"),
stripenp->cname);
if (meta_print_stripe_options(hspnp, NULL, stdout, ep) != 0)
return (-1);
}
/* otherwise, change parameters */
else {
if (meta_stripe_set_params(sp, stripenp, &msp, ep) != 0)
return (-1);
/* update md.cf */
if (meta_update_md_cf(sp, ep) != 0)
return (-1);
}
/* return success */
return (0);
}
/*
* do raid parameters
*/
static int
raid_params(
mdsetname_t *sp,
mdname_t *raidnp,
int argc,
char *argv[],
md_error_t *ep
)
{
mr_params_t msp;
int modified = 0;
mdhspname_t *hspnp;
int c;
/* we must have a set */
assert(sp != NULL);
assert(sp->setno == MD_MIN2SET(meta_getminor(raidnp->dev)));
/* initialize */
(void) memset(&msp, '\0', sizeof (msp));
/* reset and parse args */
optind = 1;
opterr = 1;
while ((c = getopt(argc, argv, "s:h:")) != -1) {
switch (c) {
case 's':
break;
case 'h':
if (meta_is_none(optarg)) {
msp.hsp_id = MD_HSP_NONE;
} else if ((hspnp = metahspname(&sp, optarg,
ep)) == NULL) {
return (-1);
} else if (metachkhsp(sp, hspnp, ep) != 0) {
return (-1);
} else {
msp.hsp_id = hspnp->hsp;
}
msp.change_hsp_id = 1;
modified = 1;
break;
default:
usage(sp, 1);
/*NOTREACHED*/
break;
}
}
argc -= optind;
argv += optind;
if (argc != 1)
usage(sp, 1);
/* if just printing */
if (! modified) {
if (meta_raid_get_params(sp, raidnp, &msp, ep) != 0)
return (-1);
if (msp.hsp_id == MD_HSP_NONE)
hspnp = NULL;
else if ((hspnp = metahsphspname(&sp, msp.hsp_id, ep)) == NULL)
return (-1);
(void) printf(gettext(
"%s: RAID current parameters are:\n"),
raidnp->cname);
if (meta_print_raid_options(hspnp, NULL, stdout, ep) != 0)
return (-1);
}
/* otherwise, change parameters */
else {
if (meta_raid_set_params(sp, raidnp, &msp, ep) != 0)
return (-1);
/* update md.cf */
if (meta_update_md_cf(sp, ep) != 0)
return (-1);
}
/* return success */
return (0);
}
/*
* parse args and doit
*/
int
main(
int argc,
char **argv
)
{
char *sname = NULL;
mdsetname_t *sp = NULL;
mdname_t *np;
char *miscname;
int c;
md_error_t status = mdnullerror;
md_error_t *ep = &status;
int error;
bool_t called_thru_rpc = FALSE;
char *cp;
char *firstarg = NULL;
/*
* Get the locale set up before calling any other routines
* with messages to ouput. Just in case we're not in a build
* environment, make sure that TEXT_DOMAIN gets set to
* something.
*/
#if !defined(TEXT_DOMAIN)
#define TEXT_DOMAIN "SYS_TEST"
#endif
(void) setlocale(LC_ALL, "");
(void) textdomain(TEXT_DOMAIN);
if ((cp = strstr(argv[0], ".rpc_call")) == NULL) {
if (sdssc_bind_library() == SDSSC_OKAY)
if (sdssc_cmd_proxy(argc, argv, SDSSC_PROXY_PRIMARY,
&error) == SDSSC_PROXY_DONE)
exit(error);
} else {
*cp = '\0'; /* cut off ".rpc_call" */
called_thru_rpc = TRUE;
}
/* initialize */
if (md_init(argc, argv, 0, 1, ep) != 0 ||
meta_check_root(ep) != 0) {
mde_perror(ep, "");
md_exit(sp, 1);
}
/* find set and metadevice first */
optind = 1;
opterr = 1;
while ((c = getopt(argc, argv, "s:h:p:r:w:o:?")) != -1) {
switch (c) {
case 's':
sname = optarg;
break;
case 'h':
firstarg = optarg;
break;
case '?':
if (optopt == '?')
usage(sp, 0);
break;
}
}
if ((argc - optind) <= 0)
usage(sp, 1);
if (sname != NULL) {
if ((sp = metasetname(sname, ep)) == NULL) {
mde_perror(ep, "");
md_exit(sp, 1);
}
}
if (firstarg == NULL)
firstarg = argv[optind];
if ((called_thru_rpc == FALSE) &&
meta_is_mn_name(&sp, firstarg, ep)) {
/*
* If we are dealing with a MN set and we were not
* called thru an rpc call, we are just to send this
* command string to the master of the set and let it
* deal with it.
* Note that if sp is NULL, meta_is_mn_name() derives sp
* from firstarg which is the metadevice arg
* If this fails, the master must panic as the mddb may be
* inconsistent
*/
int result;
result = meta_mn_send_command(sp, argc, argv, MD_DISP_STDERR |
MD_PANIC_WHEN_INCONSISTENT, NO_CONTEXT_STRING, ep);
/* No further action required */
md_exit(sp, result);
}
if ((np = metaname(&sp, argv[optind], META_DEVICE, ep)) == NULL) {
mde_perror(ep, "");
md_exit(sp, 1);
}
assert(sp != NULL);
/* grab set lock */
if (meta_lock(sp, TRUE, ep)) {
mde_perror(ep, "");
md_exit(sp, 1);
}
if (meta_check_ownership(sp, ep) != 0) {
mde_perror(ep, "");
md_exit(sp, 1);
}
if ((miscname = metagetmiscname(np, ep)) == NULL) {
mde_perror(ep, "");
md_exit(sp, 1);
}
/* dispatch based on device type */
if (strcmp(miscname, MD_STRIPE) == 0) {
if (stripe_params(sp, np, argc, argv, ep) != 0) {
mde_perror(ep, "");
md_exit(sp, 1);
}
} else if (strcmp(miscname, MD_MIRROR) == 0) {
if (mirror_params(sp, np, argc, argv, ep) != 0) {
mde_perror(ep, "");
md_exit(sp, 1);
}
} else if (strcmp(miscname, MD_RAID) == 0) {
if (raid_params(sp, np, argc, argv, ep) != 0) {
mde_perror(ep, "");
md_exit(sp, 1);
}
} else {
md_eprintf(gettext(
"%s: invalid metadevice type %s\n"),
np->cname, miscname);
md_exit(sp, 1);
}
/* return success */
md_exit(sp, 0);
/*NOTREACHED*/
return (0);
}