OpenSolaris_b135/cmd/avs/dsstat/dsstat.c
/*
* 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 2010 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <inttypes.h>
#include <locale.h>
#include <kstat.h>
#include "dsstat.h"
#include "multi_stats.h"
/* Globals */
int mode = 0;
int interval = 1;
int iterations = 1;
int zflag = 0;
int linesout = 0;
short hflags = HEADERS_EXL;
short dflags = 0;
short rflags = 0;
vslist_t *vs_top = NULL;
void
errout(char *msg)
{
(void) fprintf(stderr, msg);
}
void
usage()
{
errout(gettext(
"\ndsstat [-m <mode>[,<mode>]] [-f | -F] [-z] [-s <sets>] "
"[-r <flags>] \\\n[-d <flags>] [<interval> [<count>]]\n\n"));
}
void
help()
{
usage();
errout(gettext("\t"
"-d <flags> Specifies the statistics to be displayed\n\n"));
errout(gettext("\t"
" For 'cache' mode\n"));
errout(gettext("\t"
" Valid <flags> are 'rwfsdc', default <flags> are 'sf'\n"));
errout(gettext("\t"
" r=read, w=write, f=flags, s=summary,\n"));
errout(gettext("\t"
" only available for cache mode, need to combine with '-m'\n"));
errout(gettext("\t"
" d=destaged, c=write cancellations\n\n"));
errout(gettext("\t"
" For 'ii' mode;\n"));
errout(gettext("\t"
" Valid <flags> are 'rwtfps', default <flags> are 'sf'\n"));
errout(gettext("\t"
" r=read, w=write, t=timing, f=flags, p=percentages,\n"));
errout(gettext("\t"
" s=summary\n\n"));
errout(gettext("\t"
" For 'sndr' mode;\n"));
errout(gettext("\t"
" Valid <flags> are'rwtfpsq', default <flags> are 'spf'\n"));
errout(gettext("\t"
" r=read, w=write, t=timing, f=flags, p=percentages,\n"));
errout(gettext("\t"
" s=summary\n"));
errout(gettext("\t"
" only available for sndr mode, need to combine with '-m'\n"));
errout(gettext("\t"
" q=queue\n\n"));
errout(gettext("\t"
"-f prints field headers once for each iteration\n\n"));
errout(gettext("\t"
"-F prints field headers once, at the start of reporting\n\n"));
errout(gettext("\t"
"-h prints detailed usage message\n\n"));
errout(gettext("\t"
"-m <mode>[,<mode>] where mode is, 'cache', 'ii', or 'sndr'\n\n"));
errout(gettext("\t"
" Multiple modes may be specified as a comma separated list,\n"));
errout(gettext("\t"
" or multiple -m switches may be used.\n\n"));
errout(gettext("\t"
"-r <flags> specifies components to be reported\n\n"));
errout(gettext("\t"
" For 'cache' mode, this option is not used.\n\n"));
errout(gettext("\t"
" For 'ii' mode;\n"));
errout(gettext("\t"
" Valid <flags> are 'msbo', default <flags> are 'msbo'\n"));
errout(gettext("\t"
" m=master, s=shadow, b=bitmap, o=overflow\n\n"));
errout(gettext("\t"
" For 'sndr' mode;\n"));
errout(gettext("\t"
" Valid <flags> are 'nb', default <flags> are 'nb'\n"));
errout(gettext("\t"
" n=network, b=bitmap\n\n"));
errout(gettext("\t"
"-s <sets> outputs specified sets\n"));
errout(gettext("\t"
" Where <sets> is a comma delimited list of set names\n\n"));
errout(gettext("\t"
"-z suppress reports with zero value (no activity)\n\n"));
errout(gettext("\t"
"<interval> is the number of seconds between reports\n\n"));
errout(gettext("\t"
"<count> is the number of reports to be generated\n\n"));
}
void
fail(int err, char *msg)
{
errout(gettext("\ndsstat: "));
errout(msg);
usage();
errout(gettext("For detailed usage run \"dsstat -h\"\n"));
exit(err);
}
int
set_mode(char *user_modes)
{
char *m;
int local_mode = 0;
for (m = strtok(user_modes, ","); m != NULL; m = strtok(NULL, ",")) {
if (local_mode != 0) {
local_mode |= MULTI;
}
if (strncasecmp("sndr", m, strlen(m)) == 0) {
local_mode |= SNDR;
continue;
}
if (strncasecmp("ii", m, strlen(m)) == 0) {
local_mode |= IIMG;
continue;
}
if (strncasecmp("cache", m, strlen(m)) == 0) {
local_mode |= SDBC;
continue;
}
fail(DSSTAT_EINVAL, gettext("Invalid mode specified"));
}
return (local_mode);
}
short
set_dflags(char *flags)
{
int index;
short user_dflags = 0;
for (index = 0; index < strlen(flags); index++) {
switch (flags[index]) {
case 'r':
user_dflags |= READ;
break;
case 'w':
user_dflags |= WRITE;
break;
case 't':
user_dflags |= TIMING;
break;
case 'f':
user_dflags |= FLAGS;
break;
case 'p':
user_dflags |= PCTS;
break;
case 's':
user_dflags |= SUMMARY;
break;
case 'd':
user_dflags |= DESTAGED;
break;
case 'c':
user_dflags |= WRCANCEL;
break;
case 'h':
user_dflags |= RATIO;
break;
case 'q':
user_dflags |= ASYNC_QUEUE;
break;
default:
fail(DSSTAT_EINVAL,
gettext("Invalid display-flags set\n"));
}
}
return (user_dflags);
}
short
set_rflags(char *flags)
{
int index;
short user_rflags = 0;
for (index = 0; index < strlen(flags); index++) {
switch (flags[index]) {
case 'm':
user_rflags |= IIMG_MST;
break;
case 's':
user_rflags |= IIMG_SHD;
break;
case 'b':
user_rflags |= IIMG_BMP;
user_rflags |= SNDR_BMP;
break;
case 'o':
user_rflags |= IIMG_OVR;
break;
case 'n':
user_rflags |= SNDR_NET;
break;
default:
fail(DSSTAT_EINVAL,
gettext("Invalid report-flags set\n"));
}
}
return (user_rflags);
}
void
set_vol_list(char *list)
{
vslist_t *pre;
vslist_t *newvol;
vslist_t *vslist;
char *volume;
for (volume = strtok(list, ","); volume != NULL;
volume = strtok(NULL, ",")) {
int dup = 0;
char *vh = NULL;
char *vn = NULL;
/* get user-specified set information */
if ((vn = strchr(volume, ':')) == NULL) {
vn = volume;
} else {
*vn = '\0';
vn++;
vh = volume;
}
/* check for duplicates */
dup = 0;
for (vslist = vs_top; vslist != NULL; vslist = vslist->next) {
if (vslist->volhost && vh) {
if (strcmp(vslist->volhost, vh) == 0 &&
strcmp(vslist->volname, vn) == 0)
dup = 1;
} else {
if (strcmp(vslist->volname, vn) == 0)
dup = 1;
}
pre = vslist;
}
if (dup)
continue;
/* initialize new vslist record */
newvol = (vslist_t *)calloc(1, sizeof (vslist_t));
newvol->volname = (char *)calloc((strlen(vn) + 1),
sizeof (char));
(void) strcpy(newvol->volname, vn);
if (vh == NULL)
goto save;
newvol->volhost = (char *)calloc((strlen(vh) + 1),
sizeof (char));
(void) strcpy(newvol->volhost, vh);
save:
/* save record */
if (vs_top == NULL) {
vslist = vs_top = newvol;
vslist->next = NULL;
continue;
}
if (vslist == NULL) {
vslist = pre->next = newvol;
vslist->next = NULL;
continue;
}
}
}
int
main(int argc, char **argv)
{
extern char *optarg;
extern int optind;
int c;
int error;
short user_dflags = 0;
short user_rflags = 0;
/* Parse command line */
while ((c = getopt(argc, argv, "d:fFhm:r:s:z")) != EOF) {
switch (c) {
case 'd': /* what to display */
user_dflags = set_dflags(optarg);
break;
case 'f':
hflags = HEADERS_ATT;
break;
case 'F':
hflags = HEADERS_BOR;
break;
case 'h': /* usage */
help();
exit(0);
break;
case 'm': /* Mode */
mode |= set_mode(optarg);
break;
case 'r': /* what to report on */
user_rflags = set_rflags(optarg);
break;
case 's':
set_vol_list(optarg);
break;
case 'z':
zflag = 1;
break;
default:
fail(DSSTAT_EINVAL,
"Invalid argument specified\n");
}
}
/* Parse additional arguments */
if (optind < argc) {
if ((interval = atoi(argv[optind])) <= 0) {
fail(DSSTAT_EINVAL,
gettext("Invalid interval specified.\n"));
} else {
iterations = -1;
}
optind++;
if (optind < argc) {
if ((iterations = atoi(argv[optind])) <= 0) {
fail(DSSTAT_EINVAL,
gettext("Invalid count specified.\n"));
}
}
optind++;
}
if (optind < argc) {
fail(DSSTAT_EINVAL,
gettext("Too many parameters specified.\n"));
}
if (mode == 0)
mode |= MULTI | IIMG | SNDR | SDBC;
/* Select statistics to gather */
if (mode & SNDR) {
if (! (mode & MULTI)) {
if (user_rflags & IIMG_BMP)
user_rflags ^= IIMG_BMP;
if ((user_dflags | SNDR_DIS_MASK) != SNDR_DIS_MASK) {
fail(DSSTAT_EINVAL, gettext("Invalid "
"display-flags for RemoteMirror\n"));
}
if ((user_rflags | SNDR_REP_MASK) != SNDR_REP_MASK) {
fail(DSSTAT_EINVAL,
gettext("Invalid report-flags for "
"Remote Mirror\n"));
}
}
if ((mode & MULTI) && (user_dflags & ASYNC_QUEUE)) {
fail(DSSTAT_EINVAL, gettext("Remote Mirror async. queue"
"statistics can not be displayed with mutiple "
"modes."));
}
if (user_dflags)
dflags = user_dflags;
else
dflags |= (SUMMARY | PCTS | FLAGS | RATIO);
if (user_rflags)
rflags = user_rflags;
else
rflags |= (SNDR_NET | SNDR_BMP);
}
if (mode & IIMG) {
if (! (mode & MULTI)) {
if (user_rflags & SNDR_BMP)
user_rflags ^= SNDR_BMP;
if ((user_dflags | IIMG_DIS_MASK) != IIMG_DIS_MASK) {
fail(DSSTAT_EINVAL,
gettext("Invalid display-flags for "
"Point-in-Time Copy\n"));
}
if ((user_rflags | IIMG_REP_MASK) != IIMG_REP_MASK) {
fail(DSSTAT_EINVAL,
gettext("Invalid report-flags for "
"Point-in-Time Copy\n"));
}
}
if (user_dflags)
dflags = user_dflags;
else
dflags |= (SUMMARY | PCTS | FLAGS | RATIO);
if (user_rflags)
rflags = user_rflags;
else
rflags |= (IIMG_MST | IIMG_SHD | IIMG_BMP | IIMG_OVR);
}
if (mode & SDBC) {
if (! (mode & MULTI)) {
if ((user_dflags | CACHE_DIS_MASK) != CACHE_DIS_MASK) {
fail(DSSTAT_EINVAL, gettext("Invalid "
"display-flags for CACHE\n"));
}
if ((user_rflags | CACHE_REP_MASK) != CACHE_REP_MASK) {
fail(DSSTAT_EINVAL, gettext("Invalid "
"report-flags for CACHE\n"));
}
} else {
if ((user_dflags & DESTAGED) || (user_dflags & WRCANCEL)) {
if (user_dflags & DESTAGED)
fail(DSSTAT_EINVAL, gettext("Cache, destaged "
"statistics can not be displayed with mutiple "
"modes."));
else
fail(DSSTAT_EINVAL, gettext("Cache, write "
"cancellations "
"statistics can not be displayed with mutiple "
"modes."));
}
}
if (user_dflags)
dflags = user_dflags;
else
if (mode & MULTI)
dflags |= (SUMMARY);
else
dflags |= (SUMMARY | FLAGS);
if (user_rflags)
rflags = user_rflags;
else
rflags |= user_rflags;
}
error = do_stats();
if (error == EAGAIN) {
fail(DSSTAT_NOSTAT, gettext("No statistics available for the "
"specified mode(s).\n"));
}
if (error == EINVAL) {
fail(DSSTAT_EINVAL,
gettext("Invalid kstat format detected.\n"));
}
if (error == ENOMEM) {
fail(DSSTAT_ENOMEM,
gettext("Unable to open kstat device for reading.\n"));
}
if (error == -1) {
if (execv("/usr/sbin/dsstat", argv) != 0) {
fail(DSSTAT_EMAP, gettext("Kstat is invalid.\n"));
}
}
if (error) {
fail(DSSTAT_EUNKNWN, gettext("An unknown error occured.\n"));
}
return (0);
}