plugins/check_nt.c

   1 /******************************************************************************
   2  *
   3  * CHECK_NT.C
   4  *
   5  * Program: Windows NT plugin for NetSaint
   6  * License: GPL
   7  * Copyright (c) 2000-2002 Yves Rubin (rubiyz@yahoo.com)
   8  *
   9  * Description:
  10  *
  11  * This requires NSClient software to run on NT (http://nsclient.ready2run.nl/)
  12  *
  13  * License Information:
  14  *
  15  * This program is free software; you can redistribute it and/or modify
  16  * it under the terms of the GNU General Public License as published by
  17  * the Free Software Foundation; either version 2 of the License, or
  18  * (at your option) any later version.
  19  *
  20  * This program is distributed in the hope that it will be useful,
  21  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  22  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  23  * GNU General Public License for more details.
  24  *
  25  * You should have received a copy of the GNU General Public License
  26  * along with this program; if not, write to the Free Software
  27  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  28  *
  29  *****************************************************************************/
  30
  31 #include "config.h"
  32 #include "common.h"
  33 #include "netutils.h"
  34 #include "utils.h"
  35
  36 enum checkvars {
  37         CHECK_NONE,
  38         CHECK_CLIENTVERSION,
  39         CHECK_CPULOAD,
  40         CHECK_UPTIME,
  41         CHECK_USEDDISKSPACE,
  42         CHECK_SERVICESTATE,
  43         CHECK_PROCSTATE,
  44         CHECK_MEMUSE,
  45         CHECK_COUNTER,
  46         CHECK_FILEAGE
  47 };
  48
  49 enum {
  50         MAX_VALUE_LIST = 30,
  51         PORT = 1248
  52 };
  53
  54 char *server_address=NULL;
  55 char *volume_name=NULL;
  56 int server_port=PORT;
  57 char *value_list=NULL;
  58 char *req_password=NULL;
  59 unsigned long lvalue_list[MAX_VALUE_LIST];
  60 unsigned long warning_value=0L;
  61 unsigned long critical_value=0L;
  62 int check_value_list=FALSE;
  63 int check_warning_value=FALSE;
  64 int check_critical_value=FALSE;
  65 enum checkvars vars_to_check = CHECK_NONE;
  66 int show_all=FALSE;
  67
  68 const char *progname = "check_nt";
  69
  70 char recv_buffer[MAX_INPUT_BUFFER];
  71
  72 void fetch_data (const char* address, int port, const char* sendb);
  73 int process_arguments(int, char **);
  74 void preparelist(char *string);
  75 int strtoularray(unsigned long *array, char *string, const char *delim);
  76 void print_help(void);
  77 void print_usage(void);
  78
  79 int main(int argc, char **argv){
  80         int return_code = STATE_UNKNOWN;
  81         char *send_buffer=NULL;
  82         char *output_message=NULL;
  83         char *temp_string=NULL;
  84         char *description=NULL;
  85
  86         double total_disk_space=0;
  87         double free_disk_space=0;
  88         double percent_used_space=0;
  89         double mem_commitLimit=0;
  90         double mem_commitByte=0;
  91         unsigned long utilization;
  92         unsigned long uptime;
  93         unsigned long age_in_minutes;
  94         double counter_value;
  95         int offset=0;
  96         int updays=0;
  97         int uphours=0;
  98         int upminutes=0;
  99
 100         if(process_arguments(argc,argv)==ERROR)
 101                 usage(_("Could not parse arguments\n"));
 102
 103         /* initialize alarm signal handling */
 104         signal(SIGALRM,socket_timeout_alarm_handler);
 105
 106         /* set socket timeout */
 107         alarm(socket_timeout);
 108
 109         switch (vars_to_check) {
 110
 111         case CHECK_CLIENTVERSION:
 112
 113                 asprintf(&send_buffer, "%s&1", req_password);
 114                 fetch_data (server_address, server_port, send_buffer);
 115                 output_message = strdup (recv_buffer);
 116                 return_code=STATE_OK;
 117                 break;
 118
 119         case CHECK_CPULOAD:
 120
 121                 if (value_list==NULL)
 122                         output_message = strdup (_("missing -l parameters"));
 123                 else if (strtoularray(lvalue_list,value_list,",")==FALSE)
 124                         output_message = strdup (_("wrong -l parameter."));
 125                 else {
 126                         /* -l parameters is present with only integers */
 127                         return_code=STATE_OK;
 128                         temp_string = strdup (_("CPU Load"));
 129                         /* loop until one of the parameters is wrong or not present */
 130                         while (lvalue_list[0+offset]> (unsigned long)0 &&
 131                                                  lvalue_list[0+offset]<=(unsigned long)17280 &&
 132                                                  lvalue_list[1+offset]> (unsigned long)0 &&
 133                                                  lvalue_list[1+offset]<=(unsigned long)100 &&
 134                                                  lvalue_list[2+offset]> (unsigned long)0 &&
 135                                                  lvalue_list[2+offset]<=(unsigned long)100) {
 136
 137                                 /* Send request and retrieve data */
 138                                 asprintf(&send_buffer,"%s&2&%lu",req_password,lvalue_list[0+offset]);
 139                                 fetch_data (server_address, server_port, send_buffer);
 140
 141                                 utilization=strtoul(recv_buffer,NULL,10);
 142
 143                                 /* Check if any of the request is in a warning or critical state */
 144                                 if(utilization >= lvalue_list[2+offset])
 145                                         return_code=STATE_CRITICAL;
 146                                 else if(utilization >= lvalue_list[1+offset] && return_code<STATE_WARNING)
 147                                         return_code=STATE_WARNING;
 148
 149                                 asprintf(&output_message,_(" %lu%% (%lu min average)"), utilization, lvalue_list[0+offset]);
 150                                 asprintf(&temp_string,"%s%s",temp_string,output_message);
 151                                 offset+=3;      /* move across the array */
 152                         }
 153                         if (strlen(temp_string)>10)  /* we had at least one loop */
 154                                 output_message = strdup (temp_string);
 155                         else
 156                                 output_message = strdup (_("not enough values for -l parameters"));
 157                 }
 158                 break;
 159
 160         case CHECK_UPTIME:
 161
 162                 asprintf(&send_buffer, "%s&3", req_password);
 163                 fetch_data (server_address, server_port, send_buffer);
 164                 uptime=strtoul(recv_buffer,NULL,10);
 165                 updays = uptime / 86400;
 166                 uphours = (uptime % 86400) / 3600;
 167                 upminutes = ((uptime % 86400) % 3600) / 60;
 168                 asprintf(&output_message,_("System Uptime : %u day(s) %u hour(s) %u minute(s)"),updays,uphours, upminutes);
 169                 return_code=STATE_OK;
 170                 break;
 171
 172         case CHECK_USEDDISKSPACE:
 173
 174                 if (value_list==NULL)
 175                         output_message = strdup (_("missing -l parameters"));
 176                 else if (strlen(value_list)==1)
 177                         output_message = strdup (_("wrong -l argument"));
 178                 else {
 179                         asprintf(&send_buffer,"%s&4&%s", req_password, value_list);
 180                         fetch_data (server_address, server_port, send_buffer);
 181                         free_disk_space=atof(strtok(recv_buffer,"&"));
 182                         total_disk_space=atof(strtok(NULL,"&"));
 183                         percent_used_space = ((total_disk_space - free_disk_space) / total_disk_space) * 100;
 184
 185                         if (free_disk_space>=0) {
 186                                 asprintf(&temp_string,_("%s:\\ - total: %.2f Gb - used: %.2f Gb (%.0f%%) - free %.2f Gb (%.0f%%)"),
 187                                                                  value_list, total_disk_space / 1073741824, (total_disk_space - free_disk_space) / 1073741824, percent_used_space,
 188                                                                  free_disk_space / 1073741824, (free_disk_space / total_disk_space)*100);
 189
 190
 191                                 if(check_critical_value==TRUE && percent_used_space >= critical_value)
 192                                         return_code=STATE_CRITICAL;
 193                                 else if (check_warning_value==TRUE && percent_used_space >= warning_value)
 194                                         return_code=STATE_WARNING;
 195                                 else
 196                                         return_code=STATE_OK;
 197
 198                                 output_message = strdup (temp_string);
 199                         }
 200                         else {
 201                                 output_message = strdup (_("Free disk space : Invalid drive "));
 202                                 return_code=STATE_UNKNOWN;
 203                         }
 204                 }
 205                 break;
 206
 207         case CHECK_SERVICESTATE:
 208         case CHECK_PROCSTATE:
 209
 210                 if (value_list==NULL)
 211                         output_message = strdup (_("No service/process specified"));
 212                 else {
 213                         preparelist(value_list);                /* replace , between services with & to send the request */
 214                         asprintf(&send_buffer,"%s&%u&%s&%s", req_password,(vars_to_check==CHECK_SERVICESTATE)?5:6,
 215                                                          (show_all==TRUE)?_("ShowAll"):_("ShowFail"),value_list);
 216                         fetch_data (server_address, server_port, send_buffer);
 217                         return_code=atoi(strtok(recv_buffer,"&"));
 218                         temp_string=strtok(NULL,"&");
 219                         output_message = strdup (temp_string);
 220                 }
 221                 break;
 222
 223         case CHECK_MEMUSE:
 224
 225                 asprintf(&send_buffer,"%s&7", req_password);
 226                 fetch_data (server_address, server_port, send_buffer);
 227                 mem_commitLimit=atof(strtok(recv_buffer,"&"));
 228                 mem_commitByte=atof(strtok(NULL,"&"));
 229                 percent_used_space = (mem_commitByte / mem_commitLimit) * 100;
 230                 asprintf(&output_message,_("Memory usage: total:%.2f Mb - used: %.2f Mb (%.0f%%) - free: %.2f Mb (%.0f%%)"),
 231                         mem_commitLimit / 1048576, mem_commitByte / 1048567, percent_used_space,
 232                         (mem_commitLimit - mem_commitByte) / 1048576, (mem_commitLimit - mem_commitByte) / mem_commitLimit * 100);
 233
 234                 if(check_critical_value==TRUE && percent_used_space >= critical_value)
 235                         return_code=STATE_CRITICAL;
 236                 else if (check_warning_value==TRUE && percent_used_space >= warning_value)
 237                         return_code=STATE_WARNING;
 238                 else
 239                         return_code=STATE_OK;
 240
 241                 break;
 242
 243         case CHECK_COUNTER:
 244
 245                 if (value_list==NULL)
 246                         output_message = strdup (_("No counter specified"));
 247                 else {
 248                         preparelist(value_list);                /* replace , between services with & to send the request */
 249                         asprintf(&send_buffer,"%s&8&%s", req_password,value_list);
 250                         fetch_data (server_address, server_port, send_buffer);
 251                         strtok(value_list,"&");                 /* burn the first parameters */
 252                         description = strtok(NULL,"&");
 253                         counter_value = atof(recv_buffer);
 254
 255                         if (description == NULL)
 256                                 asprintf(&output_message, "%.f", counter_value);
 257                         else
 258                                 asprintf(&output_message,"%s = %.f",  description, counter_value);
 259
 260                         if (critical_value > warning_value) {        /* Normal thresholds */
 261                                 if(check_critical_value==TRUE && counter_value >= critical_value)
 262                                         return_code=STATE_CRITICAL;
 263                                 else if (check_warning_value==TRUE && counter_value >= warning_value)
 264                                         return_code=STATE_WARNING;
 265                                 else
 266                                         return_code=STATE_OK;
 267                         }
 268                         else {                                       /* inverse thresholds */
 269                                 if(check_critical_value==TRUE && counter_value <= critical_value)
 270                                         return_code=STATE_CRITICAL;
 271                                 else if (check_warning_value==TRUE && counter_value <= warning_value)
 272                                         return_code=STATE_WARNING;
 273                                 else
 274                                         return_code=STATE_OK;
 275                         }
 276                 }
 277                 break;
 278
 279         case CHECK_FILEAGE:
 280
 281                 if (value_list==NULL)
 282                         output_message = strdup (_("No counter specified"));
 283                 else {
 284                         preparelist(value_list);                /* replace , between services with & to send the request */
 285                         asprintf(&send_buffer,"%s&9&%s", req_password,value_list);
 286                         fetch_data (server_address, server_port, send_buffer);
 287                         age_in_minutes = atoi(strtok(recv_buffer,"&"));
 288                         description = strtok(NULL,"&");
 289                         output_message = strdup (description);
 290
 291                         if (critical_value > warning_value) {        /* Normal thresholds */
 292                                 if(check_critical_value==TRUE && age_in_minutes >= critical_value)
 293                                         return_code=STATE_CRITICAL;
 294                                 else if (check_warning_value==TRUE && age_in_minutes >= warning_value)
 295                                         return_code=STATE_WARNING;
 296                                 else
 297                                         return_code=STATE_OK;
 298                         }
 299                         else {                                       /* inverse thresholds */
 300                                 if(check_critical_value==TRUE && age_in_minutes <= critical_value)
 301                                         return_code=STATE_CRITICAL;
 302                                 else if (check_warning_value==TRUE && age_in_minutes <= warning_value)
 303                                         return_code=STATE_WARNING;
 304                                 else
 305                                         return_code=STATE_OK;
 306                         }
 307                 }
 308                 break;
 309
 310         case CHECK_NONE:
 311         default:
 312                 usage (_(""));
 313                 break;
 314
 315         }
 316
 317         /* reset timeout */
 318         alarm(0);
 319
 320         printf("%s\n",output_message);
 321
 322         return return_code;
 323 }
 324
 325
 326
 327
 328
 329 \f
 330 /* process command-line arguments */
 331 int process_arguments(int argc, char **argv){
 332         int c;
 333
 334         int option_index = 0;
 335         static struct option long_options[] =
 336         {
 337                 {"port",     required_argument,0,'p'},
 338                 {"timeout",  required_argument,0,'t'},
 339                 {"critical", required_argument,0,'c'},
 340                 {"warning",  required_argument,0,'w'},
 341                 {"variable", required_argument,0,'v'},
 342                 {"hostname", required_argument,0,'H'},
 343                 {"version",  no_argument,      0,'V'},
 344                 {"help",     no_argument,      0,'h'},
 345                 {0,0,0,0}
 346         };
 347
 348         /* no options were supplied */
 349         if(argc<2) return ERROR;
 350
 351         /* backwards compatibility */
 352         if (! is_option(argv[1])) {
 353                 server_address = strdup(argv[1]);
 354                 argv[1]=argv[0];
 355                 argv=&argv[1];
 356                 argc--;
 357         }
 358
 359   for (c=1;c<argc;c++) {
 360     if(strcmp("-to",argv[c])==0)
 361       strcpy(argv[c],"-t");
 362     else if (strcmp("-wv",argv[c])==0)
 363       strcpy(argv[c],"-w");
 364     else if (strcmp("-cv",argv[c])==0)
 365       strcpy(argv[c],"-c");
 366         }
 367
 368         while (1){
 369                 c = getopt_long(argc,argv,"+hVH:t:c:w:p:v:l:s:d:",long_options,&option_index);
 370
 371                 if (c==-1||c==EOF||c==1)
 372                         break;
 373
 374                 switch (c)
 375                         {
 376                         case '?': /* print short usage statement if args not parsable */
 377                                 printf("%s: Unknown argument: %s\n\n",progname,optarg);
 378                                 print_usage();
 379                                 exit(STATE_UNKNOWN);
 380                         case 'h': /* help */
 381                                 print_help();
 382                                 exit(STATE_OK);
 383                         case 'V': /* version */
 384                                 print_revision(progname,"$Revision$");
 385                                 exit(STATE_OK);
 386                         case 'H': /* hostname */
 387                                 if (server_address)     free(server_address);
 388                                 server_address = strdup(optarg);
 389                                 break;
 390                         case 's': /* password */
 391                                 req_password = strdup (optarg);
 392                                 break;
 393                         case 'p': /* port */
 394                                 if (is_intnonneg(optarg))
 395                                         server_port=atoi(optarg);
 396                                 else
 397                                         die(STATE_UNKNOWN,_("Server port an integer (seconds)\nType '%s -h' for additional help\n"),progname);
 398                                 break;
 399                         case 'v':
 400                                 if(strlen(optarg)<4)
 401                                         return ERROR;
 402                                 if(!strcmp(optarg,"CLIENTVERSION"))
 403                                         vars_to_check=CHECK_CLIENTVERSION;
 404                                 else if(!strcmp(optarg,"CPULOAD"))
 405                                         vars_to_check=CHECK_CPULOAD;
 406                                 else if(!strcmp(optarg,"UPTIME"))
 407                                         vars_to_check=CHECK_UPTIME;
 408                                 else if(!strcmp(optarg,"USEDDISKSPACE"))
 409                                         vars_to_check=CHECK_USEDDISKSPACE;
 410                                 else if(!strcmp(optarg,"SERVICESTATE"))
 411                                         vars_to_check=CHECK_SERVICESTATE;
 412                                 else if(!strcmp(optarg,"PROCSTATE"))
 413                                         vars_to_check=CHECK_PROCSTATE;
 414                                 else if(!strcmp(optarg,"MEMUSE"))
 415                                         vars_to_check=CHECK_MEMUSE;
 416                                 else if(!strcmp(optarg,"COUNTER"))
 417                                         vars_to_check=CHECK_COUNTER;
 418                                 else if(!strcmp(optarg,"FILEAGE"))
 419                                         vars_to_check=CHECK_FILEAGE;
 420                                 else
 421                                         return ERROR;
 422                                 break;
 423                         case 'l': /* value list */
 424                                 value_list = strdup (optarg);
 425                                 break;
 426                         case 'w': /* warning threshold */
 427                                 warning_value=strtoul(optarg,NULL,10);
 428                                 check_warning_value=TRUE;
 429                                 break;
 430                         case 'c': /* critical threshold */
 431                                 critical_value=strtoul(optarg,NULL,10);
 432                                 check_critical_value=TRUE;
 433                                 break;
 434                         case 'd': /* Display select for services */
 435                                 if (!strcmp(optarg,"SHOWALL"))
 436                                         show_all = TRUE;
 437                                 break;
 438                         case 't': /* timeout */
 439                                 socket_timeout=atoi(optarg);
 440                                 if(socket_timeout<=0)
 441                                         return ERROR;
 442                         }
 443
 444         }
 445
 446         if (vars_to_check==CHECK_NONE)
 447                 return ERROR;
 448
 449         if (req_password == NULL)
 450                 req_password = strdup (_("None"));
 451
 452         return OK;
 453 }
 454
 455
 456
 457
 458
 459 \f
 460 void fetch_data (const char *address, int port, const char *sendb) {
 461         int result;
 462
 463         result=process_tcp_request(address, port, sendb, recv_buffer,sizeof(recv_buffer));
 464
 465         if(result!=STATE_OK)
 466                 die (result, "could not fetch information from server\n");
 467
 468         if (!strncmp(recv_buffer,"ERROR",5))
 469                 die (STATE_UNKNOWN, "NSClient - %s\n",recv_buffer);
 470 }
 471
 472 int strtoularray(unsigned long *array, char *string, const char *delim) {
 473         /* split a <delim> delimited string into a long array */
 474         int idx=0;
 475         char *t1;
 476
 477         for (idx=0;idx<MAX_VALUE_LIST;idx++)
 478                 array[idx]=0;
 479
 480         idx=0;
 481         for(t1 = strtok(string,delim);t1 != NULL; t1 = strtok(NULL, delim)) {
 482                 if (is_numeric(t1) && idx<MAX_VALUE_LIST) {
 483                         array[idx]=strtoul(t1,NULL,10);
 484                         idx++;
 485                 } else
 486                         return FALSE;
 487         }
 488         return TRUE;
 489 }
 490
 491 void preparelist(char *string) {
 492         /* Replace all , with & which is the delimiter for the request */
 493         int i;
 494
 495         for (i = 0; (size_t)i < strlen(string); i++)
 496                 if (string[i] == ',') {
 497                         string[i]='&';
 498                 }
 499 }
 500
 501
 502
 503
 504
 505 \f
 506 void print_help(void)
 507 {
 508         print_revision(progname,"$Revision$");
 509         printf (_("\
 510 Copyright (c) 2000 Yves Rubin (rubiyz@yahoo.com)\n\n\
 511 This plugin collects data from the NSClient service running on a\n\
 512 Windows NT/2000/XP server.\n\n"));
 513         print_usage();
 514   printf (_("\nOptions:\n\
 515 -H, --hostname=HOST\n\
 516   Name of the host to check\n\
 517 -p, --port=INTEGER\n\
 518   Optional port number (default: %d)\n\
 519 -s <password>\n\
 520   Password needed for the request\n\
 521 -w, --warning=INTEGER\n\
 522   Threshold which will result in a warning status\n\
 523 -c, --critical=INTEGER\n\
 524   Threshold which will result in a critical status\n\
 525 -t, --timeout=INTEGER\n\
 526   Seconds before connection attempt times out (default: %d)\n\
 527 -h, --help\n\
 528   Print this help screen\n\
 529 -V, --version\n\
 530   Print version information\n"),
 531                 PORT, DEFAULT_SOCKET_TIMEOUT);
 532   printf (_("\
 533 -v, --variable=STRING\n\
 534   Variable to check.  Valid variables are:\n"));
 535   printf (_("\
 536    CLIENTVERSION = Get the NSClient version\n"));
 537   printf (_("\
 538    CPULOAD = Average CPU load on last x minutes.\n\
 539      Request a -l parameter with the following syntax:\n\
 540      -l <minutes range>,<warning threshold>,<critical threshold>.\n\
 541      <minute range> should be less than 24*60.\n\
 542      Thresholds are percentage and up to 10 requests can be done in one shot.\n\
 543      ie: -l 60,90,95,120,90,95\n"));
 544   printf (_("\
 545    UPTIME = Get the uptime of the machine.\n\
 546      No specific parameters. No warning or critical threshold\n"));
 547   printf (_("\
 548    USEDDISKSPACE = Size and percentage of disk use.\n\
 549      Request a -l parameter containing the drive letter only.\n\
 550      Warning and critical thresholds can be specified with -w and -c.\n"));
 551   printf (_("\
 552    MEMUSE = Memory use.\n\
 553      Warning and critical thresholds can be specified with -w and -c.\n"));
 554   printf (_("\
 555    SERVICESTATE = Check the state of one or several services.\n\
 556      Request a -l parameters with the following syntax:\n\
 557      -l <service1>,<service2>,<service3>,...\n\
 558      You can specify -d SHOWALL in case you want to see working services\n\
 559                  in the returned string.\n"));
 560   printf (_("\
 561    PROCSTATE = Check if one or several process are running.\n\
 562      Same syntax as SERVICESTATE.\n"));
 563   printf (_("\
 564    COUNTER = Check any performance counter of Windows NT/2000.\n\
 565      Request a -l parameters with the following syntax:\n\
 566                  -l \"\\\\<performance object>\\\\counter\",\"<description>\n\
 567      The <description> parameter is optional and \n\
 568      is given to a printf output command which require a float parameters.\n\
 569      Some examples:\n\
 570        \"Paging file usage is %%.2f %%%%\"\n\
 571        \"%%.f %%%% paging file used.\"\n"));
 572         printf (_("Notes:\n\
 573  - The NSClient service should be running on the server to get any information\n\
 574    (http://nsclient.ready2run.nl).\n\
 575  - Critical thresholds should be lower than warning thresholds\n"));
 576 }
 577
 578
 579
 580
 581 void print_usage(void)
 582 {
 583         printf(_("\
 584 Usage: %s -H host -v variable [-p port] [-w warning] [-c critical]\n\
 585   [-l params] [-d SHOWALL] [-t timeout]\n"), progname);
 586         printf (_(UT_HLP_VRS), progname, progname);
 587 }