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Diffstat (limited to 'plugins/check_nt.c')
-rw-r--r-- | plugins/check_nt.c | 548 |
1 files changed, 548 insertions, 0 deletions
diff --git a/plugins/check_nt.c b/plugins/check_nt.c new file mode 100644 index 00000000..ed0dc98b --- /dev/null +++ b/plugins/check_nt.c @@ -0,0 +1,548 @@ +/****************************************************************************** + * + * 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]='&'; + } +} + |