![[tokkee]](http://tokkee.org/images/avatar.png){kind=avatar}
diff --git a/plugins/check_swap.c b/plugins/check_swap.c
index f9dba38f929853e24e9e01243281eedc56101486..aeeb9ba0a8872044e55dc1064a91f00c38cbac0e 100644 (file)
--- a/plugins/check_swap.c
+++ b/plugins/check_swap.c
/******************************************************************************
-*
-* CHECK_SWAP.C
-*
-* Program: Process plugin for Nagios
-* License: GPL
-* Copyright (c) 2000 Karl DeBisschop (kdebisschop@users.sourceforge.net)
-*
-* $Id$
-*
-******************************************************************************/
+ *
+ * Program: Swap space plugin for Nagios
+ * License: GPL
+ *
+ * License Information:
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Copyright (c) 2000 Karl DeBisschop (kdebisschop@users.sourceforge.net)
+ *
+ * $Id$
+ *
+ *****************************************************************************/
+
+const char *progname = "check_swap";
+const char *revision = "$Revision$";
+const char *copyright = "2000-2004";
+const char *email = "nagiosplug-devel@lists.sourceforge.net";
#include "common.h"
#include "popen.h"
#include "utils.h"
-#define PROGNAME "check_swap"
-
+int check_swap (int usp, float free_swap);
int process_arguments (int argc, char **argv);
-int call_getopt (int argc, char **argv);
int validate_arguments (void);
void print_usage (void);
void print_help (void);
-int warn_percent = 200, crit_percent = 200, warn_size = -1, crit_size = -1;
+int warn_percent = 0;
+int crit_percent = 0;
+double warn_size = 0;
+double crit_size = 0;
+int verbose;
+int allswaps;
int
main (int argc, char **argv)
{
- int total_swap, used_swap, free_swap, percent_used;
- int result = STATE_OK;
+ int percent_used, percent;
+ float total_swap = 0, used_swap = 0, free_swap = 0;
+ float dsktotal = 0, dskused = 0, dskfree = 0, tmp = 0;
+ int result = STATE_UNKNOWN;
char input_buffer[MAX_INPUT_BUFFER];
-#ifdef HAVE_SWAP
- char *temp_buffer;
-#endif
#ifdef HAVE_PROC_MEMINFO
FILE *fp;
+#else
+ int conv_factor = SWAP_CONVERSION;
+# ifdef HAVE_SWAP
+ char *temp_buffer;
+ char *swap_command;
+ char *swap_format;
+# else
+# ifdef HAVE_DECL_SWAPCTL
+ int i=0, nswaps=0, swapctl_res=0;
+# ifdef CHECK_SWAP_SWAPCTL_SVR4
+ swaptbl_t *tbl=NULL;
+ swapent_t *ent=NULL;
+# else
+# ifdef CHECK_SWAP_SWAPCTL_BSD
+ struct swapent *ent;
+# endif /* CHECK_SWAP_SWAPCTL_BSD */
+# endif /* CHECK_SWAP_SWAPCTL_SVR4 */
+# endif /* HAVE_DECL_SWAPCTL */
+# endif
#endif
char str[32];
- char *status = NULL;
+ char *status;
- if (process_arguments (argc, argv) != OK)
- usage ("Invalid command arguments supplied\n");
+ setlocale (LC_ALL, "");
+ bindtextdomain (PACKAGE, LOCALEDIR);
+ textdomain (PACKAGE);
+
+ status = strdup ("");
+
+ if (process_arguments (argc, argv) == ERROR)
+ usage4 (_("Could not parse arguments"));
#ifdef HAVE_PROC_MEMINFO
fp = fopen (PROC_MEMINFO, "r");
- asprintf (&status, "%s", "Swap used:");
while (fgets (input_buffer, MAX_INPUT_BUFFER - 1, fp)) {
- sscanf (input_buffer, " %s %d %d %d", str, &total_swap, &used_swap,
- &free_swap);
- if (strstr (str, "Swap")) {
- percent_used = 100 * (((float) used_swap) / ((float) total_swap));
- asprintf (&status, "%s %2d%% (%d bytes out of %d)",
- status, percent_used, used_swap, total_swap);
- if (percent_used >= crit_percent || free_swap <= crit_size)
- result = STATE_CRITICAL;
- else if (percent_used >= warn_percent || free_swap <= warn_size)
- result = STATE_WARNING;
- break;
+ if (sscanf (input_buffer, "%*[S]%*[w]%*[a]%*[p]%*[:] %f %f %f", &dsktotal, &dskused, &dskfree) == 3) {
+ dsktotal = dsktotal / 1048576;
+ dskused = dskused / 1048576;
+ dskfree = dskfree / 1048576;
+ total_swap += dsktotal;
+ used_swap += dskused;
+ free_swap += dskfree;
+ if (allswaps) {
+ if (dsktotal == 0)
+ percent=100.0;
+ else
+ percent = 100 * (((double) dskused) / ((double) dsktotal));
+ result = max_state (result, check_swap (percent, dskfree));
+ if (verbose)
+ asprintf (&status, "%s [%.0f (%d%%)]", status, dskfree, 100 - percent);
+ }
+ }
+ else if (sscanf (input_buffer, "%*[S]%*[w]%*[a]%*[p]%[TotalFre]%*[:] %f %*[k]%*[B]", str, &tmp)) {
+ if (strcmp ("Total", str) == 0) {
+ dsktotal = tmp / 1024;
+ }
+ else if (strcmp ("Free", str) == 0) {
+ dskfree = tmp / 1024;
+ }
}
}
- fclose (fp);
+ fclose(fp);
+ dskused = dsktotal - dskfree;
+ total_swap = dsktotal;
+ used_swap = dskused;
+ free_swap = dskfree;
#else
-#ifdef HAVE_SWAP
- child_process = spopen (SWAP_COMMAND);
+# ifdef HAVE_SWAP
+ asprintf(&swap_command, "%s", SWAP_COMMAND);
+ asprintf(&swap_format, "%s", SWAP_FORMAT);
+
+/* These override the command used if a summary (and thus ! allswaps) is required */
+/* The summary flag returns more accurate information about swap usage on these OSes */
+# ifdef _AIX
+ if (!allswaps) {
+ asprintf(&swap_command, "%s", "/usr/sbin/lsps -s");
+ asprintf(&swap_format, "%s", "%f%*s %f");
+ conv_factor = 1;
+ }
+# endif
+
+ if (verbose >= 2)
+ printf (_("Command: %s\n"), swap_command);
+ if (verbose >= 3)
+ printf (_("Format: %s\n"), swap_format);
+
+ child_process = spopen (swap_command);
if (child_process == NULL) {
- printf ("Could not open pipe: %s\n", SWAP_COMMAND);
+ printf (_("Could not open pipe: %s\n"), swap_command);
return STATE_UNKNOWN;
}
child_stderr = fdopen (child_stderr_array[fileno (child_process)], "r");
if (child_stderr == NULL)
- printf ("Could not open stderr for %s\n", SWAP_COMMAND);
+ printf (_("Could not open stderr for %s\n"), swap_command);
sprintf (str, "%s", "");
/* read 1st line */
fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_process);
- if (strcmp (SWAP_FORMAT, "") == 0) {
+ if (strcmp (swap_format, "") == 0) {
temp_buffer = strtok (input_buffer, " \n");
while (temp_buffer) {
if (strstr (temp_buffer, "blocks"))
sprintf (str, "%s %s", str, "%f");
- else if (strstr (temp_buffer, "free"))
+ else if (strstr (temp_buffer, "dskfree"))
sprintf (str, "%s %s", str, "%f");
else
sprintf (str, "%s %s", str, "%*s");
}
}
- asprintf (&status, "%s", "Swap used:");
- while (fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_process)) {
- sscanf (input_buffer, SWAP_FORMAT, &total_swap, &free_swap);
+/* If different swap command is used for summary switch, need to read format differently */
+# ifdef _AIX
+ if (!allswaps) {
+ fgets(input_buffer, MAX_INPUT_BUFFER - 1, child_process); /* Ignore first line */
+ sscanf (input_buffer, swap_format, &total_swap, &used_swap);
+ free_swap = total_swap * (100 - used_swap) /100;
used_swap = total_swap - free_swap;
- percent_used = 100 * ((float) used_swap) / ((float) total_swap);
- asprintf (&status, "%s %2d%% (%d bytes out of %d)",
- status, percent_used, used_swap, total_swap);
- if (percent_used >= crit_percent || free_swap <= crit_size)
- result = STATE_CRITICAL;
- else if (percent_used >= warn_percent || free_swap <= warn_size)
- result = STATE_WARNING;
+ if (verbose >= 3)
+ printf (_("total=%.0f, used=%.0f, free=%.0f\n"), total_swap, used_swap, free_swap);
+ } else {
+# endif
+ while (fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_process)) {
+ sscanf (input_buffer, swap_format, &dsktotal, &dskfree);
+
+ dsktotal = dsktotal / conv_factor;
+ /* AIX lists percent used, so this converts to dskfree in MBs */
+# ifdef _AIX
+ dskfree = dsktotal * (100 - dskfree) / 100;
+# else
+ dskfree = dskfree / conv_factor;
+# endif
+ if (verbose >= 3)
+ printf (_("total=%.0f, free=%.0f\n"), dsktotal, dskfree);
+
+ dskused = dsktotal - dskfree;
+ total_swap += dsktotal;
+ used_swap += dskused;
+ free_swap += dskfree;
+ if (allswaps) {
+ percent = 100 * (((double) dskused) / ((double) dsktotal));
+ result = max_state (result, check_swap (percent, dskfree));
+ if (verbose)
+ asprintf (&status, "%s [%.0f (%d%%)]", status, dskfree, 100 - percent);
+ }
+ }
+# ifdef _AIX
}
+# endif
/* If we get anything on STDERR, at least set warning */
while (fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_stderr))
- result = max (result, STATE_WARNING);
+ result = max_state (result, STATE_WARNING);
/* close stderr */
(void) fclose (child_stderr);
/* close the pipe */
if (spclose (child_process))
- result = max (result, STATE_WARNING);
-#endif
-#endif
+ result = max_state (result, STATE_WARNING);
+# else
+# ifdef CHECK_SWAP_SWAPCTL_SVR4
+
+ /* get the number of active swap devices */
+ nswaps=swapctl(SC_GETNSWP, NULL);
+
+ /* initialize swap table + entries */
+ tbl=(swaptbl_t*)malloc(sizeof(swaptbl_t)+(sizeof(swapent_t)*nswaps));
+ memset(tbl, 0, sizeof(swaptbl_t)+(sizeof(swapent_t)*nswaps));
+ tbl->swt_n=nswaps;
+ for(i=0;i<nswaps;i++){
+ ent=&tbl->swt_ent[i];
+ ent->ste_path=(char*)malloc(sizeof(char)*MAXPATHLEN);
+ }
-#ifndef SWAP_COMMAND
-#ifndef SWAP_FILE
-#ifndef HAVE_PROC_MEMINFO
- return STATE_UNKNOWN;
-#endif
-#endif
-#endif
+ /* and now, tally 'em up */
+ swapctl_res=swapctl(SC_LIST, tbl);
+ if(swapctl_res < 0){
+ perror(_("swapctl failed: "));
+ result = STATE_WARNING;
+ }
+
+ for(i=0;i<nswaps;i++){
+ dsktotal = (float) tbl->swt_ent[i].ste_pages / SWAP_CONVERSION;
+ dskfree = (float) tbl->swt_ent[i].ste_free / SWAP_CONVERSION;
+ dskused = ( dsktotal - dskfree );
+
+ if (verbose >= 3)
+ printf ("dsktotal=%.0f dskfree=%.0f dskused=%.0f\n", dsktotal, dskfree, dskused);
+
+ if(allswaps && dsktotal > 0){
+ percent = 100 * (((double) dskused) / ((double) dsktotal));
+ result = max_state (result, check_swap (percent, dskfree));
+ if (verbose) {
+ asprintf (&status, "%s [%.0f (%d%%)]", status, dskfree, 100 - percent);
+ }
+ }
- if (result == STATE_OK)
- printf ("Swap ok - %s\n", status);
- else if (result == STATE_CRITICAL)
- printf ("CRITICAL - %s\n", status);
- else if (result == STATE_WARNING)
- printf ("WARNING - %s\n", status);
- else if (result == STATE_UNKNOWN)
- printf ("Unable to read output\n");
- else {
- result = STATE_UNKNOWN;
- printf ("UNKNOWN - %s\n", status);
+ total_swap += dsktotal;
+ free_swap += dskfree;
+ used_swap += dskused;
}
+ /* and clean up after ourselves */
+ for(i=0;i<nswaps;i++){
+ free(tbl->swt_ent[i].ste_path);
+ }
+ free(tbl);
+# else
+# ifdef CHECK_SWAP_SWAPCTL_BSD
+
+ /* get the number of active swap devices */
+ nswaps=swapctl(SWAP_NSWAP, NULL, 0);
+
+ /* initialize swap table + entries */
+ ent=(struct swapent*)malloc(sizeof(struct swapent)*nswaps);
+
+ /* and now, tally 'em up */
+ swapctl_res=swapctl(SWAP_STATS, ent, nswaps);
+ if(swapctl_res < 0){
+ perror(_("swapctl failed: "));
+ result = STATE_WARNING;
+ }
+
+ for(i=0;i<nswaps;i++){
+ dsktotal = (float) ent->se_nblks / conv_factor;
+ dskused = (float) ent->se_inuse / conv_factor;
+ dskfree = ( dsktotal - dskused );
+
+ if(allswaps && dsktotal > 0){
+ percent = 100 * (((double) dskused) / ((double) dsktotal));
+ result = max_state (result, check_swap (percent, dskfree));
+ if (verbose) {
+ asprintf (&status, "%s [%.0f (%d%%)]", status, dskfree, 100 - percent);
+ }
+ }
+
+ total_swap += dsktotal;
+ free_swap += dskfree;
+ used_swap += dskused;
+ }
+
+ /* and clean up after ourselves */
+ free(ent);
+
+# endif /* CHECK_SWAP_SWAPCTL_BSD */
+# endif /* CHECK_SWAP_SWAPCTL_SVR4 */
+# endif /* HAVE_SWAP */
+#endif /* HAVE_PROC_MEMINFO */
+
+ /* if total_swap == 0, let's not divide by 0 */
+ if(total_swap) {
+ percent_used = 100 * ((double) used_swap) / ((double) total_swap);
+ } else {
+ percent_used = 0;
+ }
+
+ result = max_state (result, check_swap (percent_used, free_swap));
+ printf (_("SWAP %s - %d%% free (%.0f MB out of %.0f MB) %s|"),
+ state_text (result),
+ (100 - percent_used), free_swap, total_swap, status);
+
+ puts (perfdata ("swap", (long) free_swap, "MB",
+ TRUE, (long) max (warn_size/1024, warn_percent/100.0*total_swap),
+ TRUE, (long) max (crit_size/1024, crit_percent/100.0*total_swap),
+ TRUE, 0,
+ TRUE, (long) total_swap));
+
return result;
}
+int
+check_swap (int usp, float free_swap)
+{
+ int result = STATE_UNKNOWN;
+ free_swap = free_swap * 1024; /* Convert back to bytes as warn and crit specified in bytes */
+ if (usp >= 0 && crit_percent != 0 && usp >= (100.0 - crit_percent))
+ result = STATE_CRITICAL;
+ else if (crit_size > 0 && free_swap <= crit_size)
+ result = STATE_CRITICAL;
+ else if (usp >= 0 && warn_percent != 0 && usp >= (100.0 - warn_percent))
+ result = STATE_WARNING;
+ else if (warn_size > 0 && free_swap <= warn_size)
+ result = STATE_WARNING;
+ else if (usp >= 0.0)
+ result = STATE_OK;
+ return result;
+}
+
/* process command-line arguments */
int
process_arguments (int argc, char **argv)
{
- int c, i = 0;
+ int c = 0; /* option character */
-#ifdef HAVE_GETOPT_H
- int option_index = 0;
- static struct option long_options[] = {
+ int option = 0;
+ static struct option longopts[] = {
{"warning", required_argument, 0, 'w'},
{"critical", required_argument, 0, 'c'},
+ {"allswaps", no_argument, 0, 'a'},
{"verbose", no_argument, 0, 'v'},
{"version", no_argument, 0, 'V'},
{"help", no_argument, 0, 'h'},
{0, 0, 0, 0}
};
-#endif
if (argc < 2)
return ERROR;
while (1) {
-#ifdef HAVE_GETOPT_H
- c = getopt_long (argc, argv, "+?Vhc:w:", long_options, &option_index);
-#else
- c = getopt (argc, argv, "+?Vhc:w:");
-#endif
+ c = getopt_long (argc, argv, "+?Vvhac:w:", longopts, &option);
if (c == -1 || c == EOF)
break;
switch (c) {
- case 'w': /* warning time threshold */
+ case 'w': /* warning size threshold */
if (is_intnonneg (optarg)) {
- warn_size = atoi (optarg);
+ warn_size = (double) atoi (optarg);
break;
}
else if (strstr (optarg, ",") &&
strstr (optarg, "%") &&
- sscanf (optarg, "%d,%d%%", &warn_size, &warn_percent) == 2) {
+ sscanf (optarg, "%g,%d%%", &warn_size, &warn_percent) == 2) {
+ warn_size = floor(warn_size);
break;
}
else if (strstr (optarg, "%") &&
break;
}
else {
- usage ("Warning threshold must be integer or percentage!\n");
+ usage4 (_("Warning threshold must be integer or percentage!"));
}
- case 'c': /* critical time threshold */
+ case 'c': /* critical size threshold */
if (is_intnonneg (optarg)) {
- crit_size = atoi (optarg);
+ crit_size = (double) atoi (optarg);
break;
}
else if (strstr (optarg, ",") &&
strstr (optarg, "%") &&
- sscanf (optarg, "%d,%d%%", &crit_size, &crit_percent) == 2) {
+ sscanf (optarg, "%g,%d%%", &crit_size, &crit_percent) == 2) {
+ crit_size = floor(crit_size);
break;
}
else if (strstr (optarg, "%") &&
break;
}
else {
- usage ("Critical threshold must be integer or percentage!\n");
+ usage4 (_("Critical threshold must be integer or percentage!"));
}
+ case 'a': /* all swap */
+ allswaps = TRUE;
+ break;
+ case 'v': /* verbose */
+ verbose++;
+ break;
case 'V': /* version */
- print_revision (my_basename (argv[0]), "$Revision$");
+ print_revision (progname, revision);
exit (STATE_OK);
case 'h': /* help */
print_help ();
exit (STATE_OK);
- case '?': /* help */
- usage ("Invalid argument\n");
+ case '?': /* error */
+ usage2 (_("Unknown argument"), optarg);
}
}
c = optind;
if (c == argc)
return validate_arguments ();
- if (warn_percent > 100 && is_intnonneg (argv[c]))
+ if (warn_percent == 0 && is_intnonneg (argv[c]))
warn_percent = atoi (argv[c++]);
if (c == argc)
return validate_arguments ();
- if (crit_percent > 100 && is_intnonneg (argv[c]))
+ if (crit_percent == 0 && is_intnonneg (argv[c]))
crit_percent = atoi (argv[c++]);
if (c == argc)
return validate_arguments ();
- if (warn_size < 0 && is_intnonneg (argv[c]))
- warn_size = atoi (argv[c++]);
+ if (warn_size == 0 && is_intnonneg (argv[c]))
+ warn_size = (double) atoi (argv[c++]);
if (c == argc)
return validate_arguments ();
- if (crit_size < 0 && is_intnonneg (argv[c]))
- crit_size = atoi (argv[c++]);
+ if (crit_size == 0 && is_intnonneg (argv[c]))
+ crit_size = (double) atoi (argv[c++]);
return validate_arguments ();
}
-
-
int
validate_arguments (void)
{
- if (warn_percent > 100 && crit_percent > 100 && warn_size < 0
- && crit_size < 0) {
+ if (warn_percent == 0 && crit_percent == 0 && warn_size == 0
+ && crit_size == 0) {
return ERROR;
}
- else if (warn_percent > crit_percent) {
- usage
- ("Warning percentage should not be less than critical percentage\n");
+ else if (warn_percent < crit_percent) {
+ usage4
+ (_("Warning percentage should be more than critical percentage"));
}
else if (warn_size < crit_size) {
- usage
- ("Warning free space should not be more than critical free space\n");
+ usage4
+ (_("Warning free space should be more than critical free space"));
}
return OK;
}
-
-
void
-print_usage (void)
+print_help (void)
{
- printf
- ("Usage: check_swap -w <used_percentage>%% -c <used_percentage>%%\n"
- " check_swap -w <bytes_free> -c <bytes_free>\n"
- " check_swap (-V|--version)\n" " check_swap (-h|--help)\n");
-}
+ print_revision (progname, revision);
+
+ printf (_(COPYRIGHT), copyright, email);
+ printf (_("Check swap space on local machine.\n\n"));
+
+ print_usage ();
+ printf (_(UT_HELP_VRSN));
+
+ printf (_("\n\
+ -w, --warning=INTEGER\n\
+ Exit with WARNING status if less than INTEGER bytes of swap space are free\n\
+ -w, --warning=PERCENT%%\n\
+ Exit with WARNING status if less than PERCENT of swap space is free\n\
+ -c, --critical=INTEGER\n\
+ Exit with CRITICAL status if less than INTEGER bytes of swap space are free\n\
+ -c, --critical=PERCENT%%\n\
+ Exit with CRITCAL status if less than PERCENT of swap space is free\n\
+ -a, --allswaps\n\
+ Conduct comparisons for all swap partitions, one by one\n\
+ -v, --verbose\n\
+ Verbose output. Up to 3 levels\n"));
+
+ printf (_("\n\
+On AIX, if -a is specified, uses lsps -a, otherwise uses lsps -s.\n"));
+
+ printf (_(UT_SUPPORT));
+}
void
-print_help (void)
+print_usage (void)
{
- print_revision (PROGNAME, "$Revision$");
- printf
- ("Copyright (c) 2000 Karl DeBisschop\n\n"
- "This plugin will check all of the swap partitions and return an\n"
- "error if the the avalable swap space is less than specified.\n\n");
- print_usage ();
- printf
- ("\nOptions:\n"
- " -w, --warning=INTEGER\n"
- " Exit with WARNING status if less than INTEGER bytes of swap space are free\n"
- " -w, --warning=PERCENT%%\n"
- " Exit with WARNING status if more than PERCENT of swap space has been used\n"
- " -c, --critical=INTEGER\n"
- " Exit with CRITICAL status if less than INTEGER bytes of swap space are free\n"
- " -c, --critical=PERCENT%%\n"
- " Exit with CRITCAL status if more than PERCENT of swap space has been used\n"
- " -h, --help\n"
- " Print detailed help screen\n"
- " -V, --version\n" " Print version information\n\n");
- support ();
+ printf ("\
+Usage: %s [-av] -w <percent_free>%% -c <percent_free>%%\n\
+ %s [-av] -w <bytes_free> -c <bytes_free>\n", progname, progname);
}