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monitoring-plugins/plugins/check_nt.c
Ethan Galstad 44a321cb8a Initial revision 
git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@2 f882894a-f735-0410-b71e-b25c423dba1c
2002-02-28 06:42:51 +00:00

548 lines
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C
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/******************************************************************************
*
* This file is part of the Nagios Plugins.
*
* Copyright (c) 2000 Yves Rubin <rubiyz@yahoo.com>
*
* The Nagios Plugins are free software; you can redistribute them
* and/or modify them 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.
*
* $Id$
*
*****************************************************************************/
#define PROGRAM check_nt
#define DESCRIPTION "Windows NT plugin for Nagios"
#define AUTHOR "Yves Rubin"
#define EMAIL "rubiyz@yahoo.com"
#define COPYRIGHTDATE "2000"
//#include "stdlib.h"
#include "config.h"
#include "common.h"
#include "netutils.h"
#include "utils.h"
#define CHECK_NONE 0
#define CHECK_CLIENTVERSION 1
#define CHECK_CPULOAD 2
#define CHECK_UPTIME 3
#define CHECK_USEDDISKSPACE 4
#define CHECK_SERVICESTATE 5
#define CHECK_PROCSTATE 6
#define CHECK_MEMUSE 7
#define CHECK_COUNTER 8
#define MAX_VALUE_LIST 30
#define PORT 1248
char *server_address=NULL;
char *volume_name=NULL;
int server_port=PORT;
char *value_list=NULL;
char *req_password=NULL;
unsigned long lvalue_list[MAX_VALUE_LIST];
unsigned long warning_value=0L;
unsigned long critical_value=0L;
int check_value_list=FALSE;
int check_warning_value=FALSE;
int check_critical_value=FALSE;
int vars_to_check=CHECK_NONE;
int show_all=FALSE;
#define PROGNAME "check_nt"
int process_arguments(int, char **);
void print_usage(void);
void print_help(void);
void preparelist(char *string);
int main(int argc, char **argv){
int result;
int return_code;
char *send_buffer=NULL;
char recv_buffer[MAX_INPUT_BUFFER];
char *output_message=NULL;
char *temp_buffer=NULL;
char *temp_string=NULL;
char *sep_string=NULL;
char *description=NULL;
double total_disk_space=0;
double free_disk_space=0;
double percent_used_space=0;
double mem_commitLimit=0;
double mem_commitByte=0;
unsigned long current_connections=0;
unsigned long utilization;
unsigned long uptime;
unsigned long cache_hits;
unsigned long cache_buffers;
unsigned long lru_time;
double counter_value;
int offset=0;
int updays=0;
int uphours=0;
int upminutes=0;
req_password=strscpy(req_password,"None");
if(process_arguments(argc,argv)==ERROR)
usage("Could not parse arguments\n");
/* initialize alarm signal handling */
signal(SIGALRM,socket_timeout_alarm_handler);
/* set socket timeout */
alarm(socket_timeout);
if (vars_to_check==CHECK_CLIENTVERSION) {
send_buffer = strscpy(send_buffer,strcat(req_password,"&1"));
result=process_tcp_request(server_address,server_port,send_buffer,recv_buffer,sizeof(recv_buffer));
if(result!=STATE_OK)
return result;
output_message = strscpy(output_message,recv_buffer);
return_code=STATE_OK;
}
else if(vars_to_check==CHECK_CPULOAD){
if (check_value_list==TRUE) {
if (strtolarray(&lvalue_list,value_list,",")==TRUE) {
// -l parameters is present with only integers
return_code=STATE_OK;
temp_string = strscpy(temp_string,"CPU Load");
while (lvalue_list[0+offset]>0 && lvalue_list[0+offset]<=17280 &&
lvalue_list[1+offset]>=0 && lvalue_list[1+offset]<=100 &&
lvalue_list[2+offset]>=0 && lvalue_list[2+offset]<=100) {
// loop until one of the parameters is wrong or not present
// Send request and retrieve data
send_buffer = ssprintf(send_buffer,"%s&2&%lu",req_password,lvalue_list[0+offset]);
result=process_tcp_request(server_address,server_port,send_buffer,recv_buffer,sizeof(recv_buffer));
if(result!=STATE_OK)
return result;
if (!strncmp(recv_buffer,"ERROR",5)) {
printf("NSClient - %s\n",recv_buffer);
exit(STATE_UNKNOWN);
}
utilization=strtoul(recv_buffer,NULL,10);
// Check if any of the request is in a warning or critical state
if(utilization >= lvalue_list[2+offset])
return_code=STATE_CRITICAL;
else if(utilization >= lvalue_list[1+offset] && return_code<STATE_WARNING)
return_code=STATE_WARNING;
output_message = ssprintf(output_message," (%lu min. %lu%)",lvalue_list[0+offset], utilization);
temp_string = strscat(temp_string,output_message);
offset+=3; //move accross the array
}
if (strlen(temp_string)>10) {
// we had at least on loop
output_message = ssprintf(output_message,"%s",temp_string);
}
else
output_message = strscpy(output_message,"not enough values for -l parameters");
} else
output_message = strscpy(output_message,"wrong -l parameter.");
} else
output_message = strscpy(output_message,"missing -l parameters");
}
else if(vars_to_check==CHECK_UPTIME){
send_buffer = strscpy(send_buffer,strcat(req_password,"&3"));
result=process_tcp_request(server_address,server_port,send_buffer,recv_buffer,sizeof(recv_buffer));
if(result!=STATE_OK)
return result;
if (!strncmp(recv_buffer,"ERROR",5)) {
printf("NSClient - %s\n",recv_buffer);
exit(STATE_UNKNOWN);
}
uptime=strtoul(recv_buffer,NULL,10);
updays = uptime / 86400;
uphours = (uptime % 86400) / 3600;
upminutes = ((uptime % 86400) % 3600) / 60;
output_message = ssprintf(output_message,"System Uptime : %u day(s) %u hour(s) %u minute(s)",updays,uphours, upminutes);
return_code=STATE_OK;
}
else if(vars_to_check==CHECK_USEDDISKSPACE){
return_code=STATE_UNKNOWN;
if (check_value_list==TRUE) {
if (strlen(value_list)==1) {
send_buffer = ssprintf(send_buffer,"%s&4&%s", req_password, value_list);
result=process_tcp_request(server_address,server_port,send_buffer,recv_buffer,sizeof(recv_buffer));
if(result!=STATE_OK)
return result;
if (!strncmp(recv_buffer,"ERROR",5)) {
printf("NSClient - %s\n",recv_buffer);
exit(STATE_UNKNOWN);
}
free_disk_space=atof(strtok(recv_buffer,"&"));
total_disk_space=atof(strtok(NULL,"&"));
percent_used_space = ((total_disk_space - free_disk_space) / total_disk_space) * 100;
if (free_disk_space>=0) {
temp_string = ssprintf(temp_string,"%s:\\ - total: %.2f Gb - used: %.2f Gb (%.0f%%) - free %.2f Gb (%.0f%%)",
value_list, total_disk_space / 1073741824, (total_disk_space - free_disk_space) / 1073741824, percent_used_space,
free_disk_space / 1073741824, (free_disk_space / total_disk_space)*100);
if(check_critical_value==TRUE && percent_used_space >= critical_value)
return_code=STATE_CRITICAL;
else if (check_warning_value==TRUE && percent_used_space >= warning_value)
return_code=STATE_WARNING;
else
return_code=STATE_OK;
output_message = ssprintf(output_message,"%s",temp_string);
}
else {
output_message = ssprintf(output_message,"Free disk space : Invalid drive ");
return_code=STATE_UNKNOWN;
}
}
else
output_message = strscpy(output_message,"wrong -l argument");
} else
output_message = strscpy(output_message,"missing -l parameters");
}
else if(vars_to_check==CHECK_SERVICESTATE || vars_to_check==CHECK_PROCSTATE){
if (check_value_list==TRUE) {
preparelist(value_list); // replace , between services with & to send the request
send_buffer = ssprintf(send_buffer,"%s&%u&%s&%s", req_password,(vars_to_check==CHECK_SERVICESTATE)?5:6,
(show_all==TRUE)?"ShowAll":"ShowFail",value_list);
result=process_tcp_request(server_address,server_port,send_buffer,recv_buffer,sizeof(recv_buffer));
if(result!=STATE_OK)
return result;
if (!strncmp(recv_buffer,"ERROR",5)) {
printf("NSClient - %s\n",recv_buffer);
exit(STATE_UNKNOWN);
}
return_code=atoi(strtok(recv_buffer,"&"));
temp_string=strtok(NULL,"&");
output_message = ssprintf(output_message, "%s",temp_string);
}
else
output_message = strscpy(output_message,"No service/process specified");
}
else if(vars_to_check==CHECK_MEMUSE) {
send_buffer = ssprintf(send_buffer,"%s&7", req_password);
result=process_tcp_request(server_address,server_port,send_buffer,recv_buffer,sizeof(recv_buffer));
if (result!=STATE_OK)
return result;
if (!strncmp(recv_buffer,"ERROR",5)) {
printf("NSClient - %s\n",recv_buffer);
exit(STATE_UNKNOWN);
}
mem_commitLimit=atof(strtok(recv_buffer,"&"));
mem_commitByte=atof(strtok(NULL,"&"));
percent_used_space = (mem_commitByte / mem_commitLimit) * 100;
output_message = ssprintf(output_message,"Memory usage: total:%.2f Mb - used: %.2f Mb (%.0f%%) - free: %.2f Mb (%.0f%%)",
mem_commitLimit / 1048576, mem_commitByte / 1048567, percent_used_space,
(mem_commitLimit - mem_commitByte) / 1048576, (mem_commitLimit - mem_commitByte) / mem_commitLimit * 100);
if(check_critical_value==TRUE && percent_used_space >= critical_value)
return_code=STATE_CRITICAL;
else if (check_warning_value==TRUE && percent_used_space >= warning_value)
return_code=STATE_WARNING;
else
return_code=STATE_OK;
}
else if(vars_to_check==CHECK_COUNTER) {
if (check_value_list==TRUE) {
preparelist(value_list); // replace , between services with & to send the request
send_buffer = ssprintf(send_buffer,"%s&8&%s", req_password,value_list);
result=process_tcp_request(server_address,server_port,send_buffer,recv_buffer,sizeof(recv_buffer));
if (result!=STATE_OK)
return result;
if (!strncmp(recv_buffer,"ERROR",5)) {
printf("NSClient - %s\n",recv_buffer);
exit(STATE_UNKNOWN);
}
strtok(value_list,"&"); // burn the first parameters
description = strtok(NULL,"&");
counter_value = atof(recv_buffer);
if (description == NULL)
output_message = ssprintf(output_message, "%.f", counter_value);
else
output_message = ssprintf(output_message, description, counter_value);
if (critical_value > warning_value) {
// Normal thresholds
if(check_critical_value==TRUE && counter_value >= critical_value)
return_code=STATE_CRITICAL;
else if (check_warning_value==TRUE && counter_value >= warning_value)
return_code=STATE_WARNING;
else
return_code=STATE_OK;
}
else {
// inverse thresholds
if(check_critical_value==TRUE && counter_value <= critical_value)
return_code=STATE_CRITICAL;
else if (check_warning_value==TRUE && counter_value <= warning_value)
return_code=STATE_WARNING;
else
return_code=STATE_OK;
}
}
else {
output_message = strscpy(output_message,"No counter specified");
result=STATE_UNKNOWN;
}
}
/* reset timeout */
alarm(0);
printf("%s\n",output_message);
return return_code;
}
/* process command-line arguments */
int process_arguments(int argc, char **argv){
int c;
#ifdef HAVE_GETOPT_H
int option_index = 0;
static struct option long_options[] =
{
{"port", required_argument,0,'p'},
{"timeout", required_argument,0,'t'},
{"critical", required_argument,0,'c'},
{"warning", required_argument,0,'w'},
{"variable", required_argument,0,'v'},
{"hostname", required_argument,0,'H'},
{"version", no_argument, 0,'V'},
{"help", no_argument, 0,'h'},
{0,0,0,0}
};
#endif
/* no options were supplied */
if(argc<2) return ERROR;
/* backwards compatibility */
if (! is_option(argv[1])) {
server_address=argv[1];
argv[1]=argv[0];
argv=&argv[1];
argc--;
}
for (c=1;c<argc;c++) {
if(strcmp("-to",argv[c])==0)
strcpy(argv[c],"-t");
else if (strcmp("-wv",argv[c])==0)
strcpy(argv[c],"-w");
else if (strcmp("-cv",argv[c])==0)
strcpy(argv[c],"-c");
}
while (1){
#ifdef HAVE_GETOPT_H
c = getopt_long(argc,argv,"+hVH:t:c:w:p:v:l:s:d:",long_options,&option_index);
#else
c = getopt(argc,argv,"+hVH:t:c:w:p:v:l:s:d:");
#endif
if (c==-1||c==EOF||c==1)
break;
switch (c)
{
case '?': /* print short usage statement if args not parsable */
printf("%s: Unknown argument: %s\n\n",my_basename(argv[0]),optarg);
print_usage();
exit(STATE_UNKNOWN);
case 'h': /* help */
print_help();
exit(STATE_OK);
case 'V': /* version */
print_revision(my_basename(argv[0]),"$Revision$");
exit(STATE_OK);
case 'H': /* hostname */
server_address=optarg;
break;
case 's': /* password */
req_password=strscpy(req_password,optarg);
break;
case 'p': /* port */
if (is_intnonneg(optarg))
server_port=atoi(optarg);
else
terminate(STATE_UNKNOWN,"Server port an integer (seconds)\nType '%s -h' for additional help\n",PROGNAME);
break;
case 'v':
if(strlen(optarg)<4)
return ERROR;
if(!strcmp(optarg,"CLIENTVERSION"))
vars_to_check=CHECK_CLIENTVERSION;
else if(!strcmp(optarg,"CPULOAD"))
vars_to_check=CHECK_CPULOAD;
else if(!strcmp(optarg,"UPTIME"))
vars_to_check=CHECK_UPTIME;
else if(!strcmp(optarg,"USEDDISKSPACE"))
vars_to_check=CHECK_USEDDISKSPACE;
else if(!strcmp(optarg,"SERVICESTATE"))
vars_to_check=CHECK_SERVICESTATE;
else if(!strcmp(optarg,"PROCSTATE"))
vars_to_check=CHECK_PROCSTATE;
else if(!strcmp(optarg,"MEMUSE"))
vars_to_check=CHECK_MEMUSE;
else if(!strcmp(optarg,"COUNTER"))
vars_to_check=CHECK_COUNTER;
else
return ERROR;
break;
case 'l': /* value list */
value_list=strscpy(value_list,optarg);
check_value_list=TRUE;
break;
case 'w': /* warning threshold */
warning_value=strtoul(optarg,NULL,10);
check_warning_value=TRUE;
break;
case 'c': /* critical threshold */
critical_value=strtoul(optarg,NULL,10);
check_critical_value=TRUE;
break;
case 'd': /* Display select for services */
if (!strcmp(optarg,"SHOWALL"))
show_all = TRUE;
break;
case 't': /* timeout */
socket_timeout=atoi(optarg);
if(socket_timeout<=0)
return ERROR;
}
}
return OK;
}
void print_usage(void)
{
printf("Usage: %s -H host [-p port] [-v variable] [-w warning] [-c critical] [-l params] [-d SHOWALL] [-t timeout]\n",PROGNAME);
}
void print_help(void)
{
print_revision(PROGNAME,"$Revision$");
printf
("Copyright (c) 2000 Yves Rubin (rubiyz@yahoo.com)\n\n"
"This plugin attempts to contact the NSClient service running on a Windows NT or Windows 2000 server to\n"
"gather the requested system information.\n\n");
print_usage();
printf
("\nOptions:\n"
"-H, --hostname=HOST\n"
" Name of the host to check\n"
"-p, --port=INTEGER\n"
" Optional port number (default: %d)\n"
"-s <password>\n"
" Password needed for the request\n"
"-v, --variable=STRING\n"
" Variable to check. Valid variables are:\n"
" CLIENTVERSION = Get the NSClient version\n"
" CPULOAD = Average CPU load on last x minutes. Request a -l parameter with the following syntax:\n"
" -l <minutes range>,<warning threshold>,<critical threshold>. <minute range> should be less than 24*60.\n"
" Thresholds are percentage and up to 10 requests can be done in one shot. ie: -l 60,90,95,120,90,95\n"
" UPTIME = Get the uptime of the machine. No specific parameters. No warning or critical threshold\n"
" USEDDISKSPACE = Size and percentage of disk use. Request a -l parameter containing the drive letter only.\n"
" Warning and critical thresholds can be specified with -w and -c.\n"
" MEMUSE = Memory use. Warning and critical thresholds can be specified with -w and -c.\n"
" SERVICESTATE = Check the state of one or several services. Request a -l parameters with the following syntax:\n"
" -l <service1>,<service2>,<service3>,... You can specify -d SHOWALL in case you want to see working services\n"
" in the returned string.\n"
" PROCSTATE = Check if one or several process are running. Same syntax as SERVICESTATE.\n"
" COUNTER = Check any performance counter of Windows NT/2000. Request a -l parameters with the following syntax:\n"
" -l \"\\\\<performance object>\\\\counter\",\"<description>\" The <description> parameter is optional and \n"
" is given to a printf output command which require a float parameters. Some examples:\n"
" \"Paging file usage is %%.2f %%%%\" or \"%%.f %%%% paging file used.\"\n"
" -w, --warning=INTEGER\n"
" Threshold which will result in a warning status\n"
" -c, --critical=INTEGER\n"
" Threshold which will result in a critical status\n"
" -t, --timeout=INTEGER\n"
" Seconds before connection attempt times out (default: %d)\n"
"-h, --help\n"
" Print this help screen\n"
"-V, --version\n"
" Print version information\n\n"
"Notes:\n"
" - The NSClient service should be running on the server to get any information.\n"
" - Critical thresholds should be lower than warning thresholds\n", PORT, DEFAULT_SOCKET_TIMEOUT);
}
int strtolarray(unsigned long *array, char *string, char *delim) {
// split a <delim> delimited string into a long array
int idx=0;
char *t1;
for (idx=0;idx<MAX_VALUE_LIST;idx++)
array[idx]=-1;
idx=0;
for(t1 = strtok(string,delim);t1 != NULL; t1 = strtok(NULL, delim)) {
if (is_numeric(t1) && idx<MAX_VALUE_LIST) {
array[idx]=strtoul(t1,NULL,10);
idx++;
} else
return FALSE;
}
return TRUE;
}
void preparelist(char *string) {
// Replace all , with & which is the delimiter for the request
int i;
for (i = 0; i < strlen(string); i++)
if (string[i] == ',') {
string[i]='&';
}
}
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