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 "common.h"
  32 #include "netutils.h"
  33 #include "utils.h"
  34
  35 enum checkvars {
  36         CHECK_NONE,
  37         CHECK_CLIENTVERSION,
  38         CHECK_CPULOAD,
  39         CHECK_UPTIME,
  40         CHECK_USEDDISKSPACE,
  41         CHECK_SERVICESTATE,
  42         CHECK_PROCSTATE,
  43         CHECK_MEMUSE,
  44         CHECK_COUNTER,
  45         CHECK_FILEAGE
  46 };
  47
  48 enum {
  49         MAX_VALUE_LIST = 30,
  50         PORT = 1248
  51 };
  52
  53 char *server_address=NULL;
  54 char *volume_name=NULL;
  55 int server_port=PORT;
  56 char *value_list=NULL;
  57 char *req_password=NULL;
  58 unsigned long lvalue_list[MAX_VALUE_LIST];
  59 unsigned long warning_value=0L;
  60 unsigned long critical_value=0L;
  61 int check_warning_value=FALSE;
  62 int check_critical_value=FALSE;
  63 enum checkvars vars_to_check = CHECK_NONE;
  64 int show_all=FALSE;
  65
  66 const char *progname = "check_nt";
  67
  68 char recv_buffer[MAX_INPUT_BUFFER];
  69
  70 void fetch_data (const char* address, int port, const char* sendb);
  71 int process_arguments(int, char **);
  72 void preparelist(char *string);
  73 int strtoularray(unsigned long *array, char *string, const char *delim);
  74 void print_help(void);
  75 void print_usage(void);
  76
  77 int main(int argc, char **argv){
  78         int return_code = STATE_UNKNOWN;
  79         char *send_buffer=NULL;
  80         char *output_message=NULL;
  81         char *temp_string=NULL;
  82         char *description=NULL;
  83
  84         double total_disk_space=0;
  85         double free_disk_space=0;
  86         double percent_used_space=0;
  87         double mem_commitLimit=0;
  88         double mem_commitByte=0;
  89         unsigned long utilization;
  90         unsigned long uptime;
  91         unsigned long age_in_minutes;
  92         double counter_value;
  93         int offset=0;
  94         int updays=0;
  95         int uphours=0;
  96         int upminutes=0;
  97
  98         setlocale (LC_ALL, "");
  99         bindtextdomain (PACKAGE, LOCALEDIR);
 100         textdomain (PACKAGE);
 101
 102         if(process_arguments(argc,argv)==ERROR)
 103                 usage(_("Could not parse arguments\n"));
 104
 105         /* initialize alarm signal handling */
 106         signal(SIGALRM,socket_timeout_alarm_handler);
 107
 108         /* set socket timeout */
 109         alarm(socket_timeout);
 110
 111         switch (vars_to_check) {
 112
 113         case CHECK_CLIENTVERSION:
 114
 115                 asprintf(&send_buffer, "%s&1", req_password);
 116                 fetch_data (server_address, server_port, send_buffer);
 117                 if (value_list != NULL && strcmp(recv_buffer, value_list) != 0) {
 118                         asprintf (&output_message, _("Wrong client version - running: %s, required: %s"), recv_buffer, value_list);
 119                         return_code = STATE_WARNING;
 120                 } else {
 121                         asprintf (&output_message, "%s", recv_buffer);
 122                         return_code = STATE_OK;
 123                 }
 124                 break;
 125
 126         case CHECK_CPULOAD:
 127
 128                 if (value_list==NULL)
 129                         output_message = strdup (_("missing -l parameters"));
 130                 else if (strtoularray(lvalue_list,value_list,",")==FALSE)
 131                         output_message = strdup (_("wrong -l parameter."));
 132                 else {
 133                         /* -l parameters is present with only integers */
 134                         return_code=STATE_OK;
 135                         temp_string = strdup (_("CPU Load"));
 136                         /* loop until one of the parameters is wrong or not present */
 137                         while (lvalue_list[0+offset]> (unsigned long)0 &&
 138                                                  lvalue_list[0+offset]<=(unsigned long)17280 &&
 139                                                  lvalue_list[1+offset]> (unsigned long)0 &&
 140                                                  lvalue_list[1+offset]<=(unsigned long)100 &&
 141                                                  lvalue_list[2+offset]> (unsigned long)0 &&
 142                                                  lvalue_list[2+offset]<=(unsigned long)100) {
 143
 144                                 /* Send request and retrieve data */
 145                                 asprintf(&send_buffer,"%s&2&%lu",req_password,lvalue_list[0+offset]);
 146                                 fetch_data (server_address, server_port, send_buffer);
 147
 148                                 utilization=strtoul(recv_buffer,NULL,10);
 149
 150                                 /* Check if any of the request is in a warning or critical state */
 151                                 if(utilization >= lvalue_list[2+offset])
 152                                         return_code=STATE_CRITICAL;
 153                                 else if(utilization >= lvalue_list[1+offset] && return_code<STATE_WARNING)
 154                                         return_code=STATE_WARNING;
 155
 156                                 asprintf(&output_message,_(" %lu%% (%lu min average)"), utilization, lvalue_list[0+offset]);
 157                                 asprintf(&temp_string,"%s%s",temp_string,output_message);
 158                                 offset+=3;      /* move across the array */
 159                         }
 160                         if (strlen(temp_string)>10)  /* we had at least one loop */
 161                                 output_message = strdup (temp_string);
 162                         else
 163                                 output_message = strdup (_("not enough values for -l parameters"));
 164                 }
 165                 break;
 166
 167         case CHECK_UPTIME:
 168
 169                 asprintf(&send_buffer, "%s&3", req_password);
 170                 fetch_data (server_address, server_port, send_buffer);
 171                 uptime=strtoul(recv_buffer,NULL,10);
 172                 updays = uptime / 86400;
 173                 uphours = (uptime % 86400) / 3600;
 174                 upminutes = ((uptime % 86400) % 3600) / 60;
 175                 asprintf(&output_message,_("System Uptime : %u day(s) %u hour(s) %u minute(s)"),updays,uphours, upminutes);
 176                 return_code=STATE_OK;
 177                 break;
 178
 179         case CHECK_USEDDISKSPACE:
 180
 181                 if (value_list==NULL)
 182                         output_message = strdup (_("missing -l parameters"));
 183                 else if (strlen(value_list)!=1)
 184                         output_message = strdup (_("wrong -l argument"));
 185                 else {
 186                         asprintf(&send_buffer,"%s&4&%s", req_password, value_list);
 187                         fetch_data (server_address, server_port, send_buffer);
 188                         free_disk_space=atof(strtok(recv_buffer,"&"));
 189                         total_disk_space=atof(strtok(NULL,"&"));
 190                         percent_used_space = ((total_disk_space - free_disk_space) / total_disk_space) * 100;
 191
 192                         if (free_disk_space>=0) {
 193                                 asprintf(&temp_string,_("%s:\\ - total: %.2f Gb - used: %.2f Gb (%.0f%%) - free %.2f Gb (%.0f%%)"),
 194                                                                  value_list, total_disk_space / 1073741824, (total_disk_space - free_disk_space) / 1073741824, percent_used_space,
 195                                                                  free_disk_space / 1073741824, (free_disk_space / total_disk_space)*100);
 196
 197
 198                                 if(check_critical_value==TRUE && percent_used_space >= critical_value)
 199                                         return_code=STATE_CRITICAL;
 200                                 else if (check_warning_value==TRUE && percent_used_space >= warning_value)
 201                                         return_code=STATE_WARNING;
 202                                 else
 203                                         return_code=STATE_OK;
 204
 205                                 output_message = strdup (temp_string);
 206                         }
 207                         else {
 208                                 output_message = strdup (_("Free disk space : Invalid drive "));
 209                                 return_code=STATE_UNKNOWN;
 210                         }
 211                 }
 212                 break;
 213
 214         case CHECK_SERVICESTATE:
 215         case CHECK_PROCSTATE:
 216
 217                 if (value_list==NULL)
 218                         output_message = strdup (_("No service/process specified"));
 219                 else {
 220                         preparelist(value_list);                /* replace , between services with & to send the request */
 221                         asprintf(&send_buffer,"%s&%u&%s&%s", req_password,(vars_to_check==CHECK_SERVICESTATE)?5:6,
 222                                                          (show_all==TRUE)?_("ShowAll"):_("ShowFail"),value_list);
 223                         fetch_data (server_address, server_port, send_buffer);
 224                         return_code=atoi(strtok(recv_buffer,"&"));
 225                         temp_string=strtok(NULL,"&");
 226                         output_message = strdup (temp_string);
 227                 }
 228                 break;
 229
 230         case CHECK_MEMUSE:
 231
 232                 asprintf(&send_buffer,"%s&7", req_password);
 233                 fetch_data (server_address, server_port, send_buffer);
 234                 mem_commitLimit=atof(strtok(recv_buffer,"&"));
 235                 mem_commitByte=atof(strtok(NULL,"&"));
 236                 percent_used_space = (mem_commitByte / mem_commitLimit) * 100;
 237                 asprintf(&output_message,_("Memory usage: total:%.2f Mb - used: %.2f Mb (%.0f%%) - free: %.2f Mb (%.0f%%)"),
 238                         mem_commitLimit / 1048576, mem_commitByte / 1048567, percent_used_space,
 239                         (mem_commitLimit - mem_commitByte) / 1048576, (mem_commitLimit - mem_commitByte) / mem_commitLimit * 100);
 240
 241                 return_code=STATE_OK;
 242                 if(check_critical_value==TRUE && percent_used_space >= critical_value)
 243                         return_code=STATE_CRITICAL;
 244                 else if (check_warning_value==TRUE && percent_used_space >= warning_value)
 245                         return_code=STATE_WARNING;
 246
 247                 break;
 248
 249         case CHECK_COUNTER:
 250
 251                 if (value_list==NULL)
 252                         output_message = strdup (_("No counter specified"));
 253                 else {
 254                         preparelist(value_list);                /* replace , between services with & to send the request */
 255                         asprintf(&send_buffer,"%s&8&%s", req_password,value_list);
 256                         fetch_data (server_address, server_port, send_buffer);
 257                         strtok(value_list,"&");                 /* burn the first parameters */
 258                         description = strtok(NULL,"&");
 259                         counter_value = atof(recv_buffer);
 260
 261                         if (description == NULL)
 262                                 asprintf(&output_message, "%.f", counter_value);
 263                         else
 264                                 asprintf(&output_message,"%s = %.f",  description, counter_value);
 265
 266                         if (critical_value > warning_value) {        /* Normal thresholds */
 267                                 if(check_critical_value==TRUE && counter_value >= critical_value)
 268                                         return_code=STATE_CRITICAL;
 269                                 else if (check_warning_value==TRUE && counter_value >= warning_value)
 270                                         return_code=STATE_WARNING;
 271                                 else
 272                                         return_code=STATE_OK;
 273                         }
 274                         else {                                       /* inverse thresholds */
 275                                 return_code=STATE_OK;
 276                                 if(check_critical_value==TRUE && counter_value <= critical_value)
 277                                         return_code=STATE_CRITICAL;
 278                                 else if (check_warning_value==TRUE && counter_value <= warning_value)
 279                                         return_code=STATE_WARNING;
 280                         }
 281                 }
 282                 break;
 283
 284         case CHECK_FILEAGE:
 285
 286                 if (value_list==NULL)
 287                         output_message = strdup (_("No counter specified"));
 288                 else {
 289                         preparelist(value_list);                /* replace , between services with & to send the request */
 290                         asprintf(&send_buffer,"%s&9&%s", req_password,value_list);
 291                         fetch_data (server_address, server_port, send_buffer);
 292                         age_in_minutes = atoi(strtok(recv_buffer,"&"));
 293                         description = strtok(NULL,"&");
 294                         output_message = strdup (description);
 295
 296                         if (critical_value > warning_value) {        /* Normal thresholds */
 297                                 if(check_critical_value==TRUE && age_in_minutes >= critical_value)
 298                                         return_code=STATE_CRITICAL;
 299                                 else if (check_warning_value==TRUE && age_in_minutes >= warning_value)
 300                                         return_code=STATE_WARNING;
 301                                 else
 302                                         return_code=STATE_OK;
 303                         }
 304                         else {                                       /* inverse thresholds */
 305                                 if(check_critical_value==TRUE && age_in_minutes <= critical_value)
 306                                         return_code=STATE_CRITICAL;
 307                                 else if (check_warning_value==TRUE && age_in_minutes <= warning_value)
 308                                         return_code=STATE_WARNING;
 309                                 else
 310                                         return_code=STATE_OK;
 311                         }
 312                 }
 313                 break;
 314
 315         case CHECK_NONE:
 316         default:
 317                 usage (_("Please specify a variable to check"));
 318                 break;
 319
 320         }
 321
 322         /* reset timeout */
 323         alarm(0);
 324
 325         printf("%s\n",output_message);
 326
 327         return return_code;
 328 }
 329
 330
 331
 332
 333
 334 \f
 335 /* process command-line arguments */
 336 int process_arguments(int argc, char **argv){
 337         int c;
 338
 339         int option = 0;
 340         static struct option longopts[] =
 341         {
 342                 {"port",     required_argument,0,'p'},
 343                 {"timeout",  required_argument,0,'t'},
 344                 {"critical", required_argument,0,'c'},
 345                 {"warning",  required_argument,0,'w'},
 346                 {"variable", required_argument,0,'v'},
 347                 {"hostname", required_argument,0,'H'},
 348                 {"version",  no_argument,      0,'V'},
 349                 {"help",     no_argument,      0,'h'},
 350                 {0,0,0,0}
 351         };
 352
 353         /* no options were supplied */
 354         if(argc<2) return ERROR;
 355
 356         /* backwards compatibility */
 357         if (! is_option(argv[1])) {
 358                 server_address = strdup(argv[1]);
 359                 argv[1]=argv[0];
 360                 argv=&argv[1];
 361                 argc--;
 362         }
 363
 364   for (c=1;c<argc;c++) {
 365     if(strcmp("-to",argv[c])==0)
 366       strcpy(argv[c],"-t");
 367     else if (strcmp("-wv",argv[c])==0)
 368       strcpy(argv[c],"-w");
 369     else if (strcmp("-cv",argv[c])==0)
 370       strcpy(argv[c],"-c");
 371         }
 372
 373         while (1){
 374                 c = getopt_long(argc,argv,"+hVH:t:c:w:p:v:l:s:d:",longopts,&option);
 375
 376                 if (c==-1||c==EOF||c==1)
 377                         break;
 378
 379                 switch (c)
 380                         {
 381                         case '?': /* print short usage statement if args not parsable */
 382                                 printf("%s: Unknown argument: %s\n\n",progname,optarg);
 383                                 print_usage();
 384                                 exit(STATE_UNKNOWN);
 385                         case 'h': /* help */
 386                                 print_help();
 387                                 exit(STATE_OK);
 388                         case 'V': /* version */
 389                                 print_revision(progname,"$Revision$");
 390                                 exit(STATE_OK);
 391                         case 'H': /* hostname */
 392                                 if (server_address)     free(server_address);
 393                                 server_address = optarg;
 394                                 break;
 395                         case 's': /* password */
 396                                 req_password = optarg;
 397                                 break;
 398                         case 'p': /* port */
 399                                 if (is_intnonneg(optarg))
 400                                         server_port=atoi(optarg);
 401                                 else
 402                                         die(STATE_UNKNOWN,_("Server port an integer (seconds)\nType '%s -h' for additional help\n"),progname);
 403                                 break;
 404                         case 'v':
 405                                 if(strlen(optarg)<4)
 406                                         return ERROR;
 407                                 if(!strcmp(optarg,"CLIENTVERSION"))
 408                                         vars_to_check=CHECK_CLIENTVERSION;
 409                                 else if(!strcmp(optarg,"CPULOAD"))
 410                                         vars_to_check=CHECK_CPULOAD;
 411                                 else if(!strcmp(optarg,"UPTIME"))
 412                                         vars_to_check=CHECK_UPTIME;
 413                                 else if(!strcmp(optarg,"USEDDISKSPACE"))
 414                                         vars_to_check=CHECK_USEDDISKSPACE;
 415                                 else if(!strcmp(optarg,"SERVICESTATE"))
 416                                         vars_to_check=CHECK_SERVICESTATE;
 417                                 else if(!strcmp(optarg,"PROCSTATE"))
 418                                         vars_to_check=CHECK_PROCSTATE;
 419                                 else if(!strcmp(optarg,"MEMUSE"))
 420                                         vars_to_check=CHECK_MEMUSE;
 421                                 else if(!strcmp(optarg,"COUNTER"))
 422                                         vars_to_check=CHECK_COUNTER;
 423                                 else if(!strcmp(optarg,"FILEAGE"))
 424                                         vars_to_check=CHECK_FILEAGE;
 425                                 else
 426                                         return ERROR;
 427                                 break;
 428                         case 'l': /* value list */
 429                                 value_list = optarg;
 430                                 break;
 431                         case 'w': /* warning threshold */
 432                                 warning_value=strtoul(optarg,NULL,10);
 433                                 check_warning_value=TRUE;
 434                                 break;
 435                         case 'c': /* critical threshold */
 436                                 critical_value=strtoul(optarg,NULL,10);
 437                                 check_critical_value=TRUE;
 438                                 break;
 439                         case 'd': /* Display select for services */
 440                                 if (!strcmp(optarg,"SHOWALL"))
 441                                         show_all = TRUE;
 442                                 break;
 443                         case 't': /* timeout */
 444                                 socket_timeout=atoi(optarg);
 445                                 if(socket_timeout<=0)
 446                                         return ERROR;
 447                         }
 448
 449         }
 450
 451         if (vars_to_check==CHECK_NONE)
 452                 return ERROR;
 453
 454         if (req_password == NULL)
 455                 req_password = strdup (_("None"));
 456
 457         return OK;
 458 }
 459
 460
 461
 462
 463
 464 \f
 465 void fetch_data (const char *address, int port, const char *sendb) {
 466         int result;
 467
 468         result=process_tcp_request(address, port, sendb, recv_buffer,sizeof(recv_buffer));
 469
 470         if(result!=STATE_OK)
 471                 die (result, "could not fetch information from server\n");
 472
 473         if (!strncmp(recv_buffer,"ERROR",5))
 474                 die (STATE_UNKNOWN, "NSClient - %s\n",recv_buffer);
 475 }
 476
 477 int strtoularray(unsigned long *array, char *string, const char *delim) {
 478         /* split a <delim> delimited string into a long array */
 479         int idx=0;
 480         char *t1;
 481
 482         for (idx=0;idx<MAX_VALUE_LIST;idx++)
 483                 array[idx]=0;
 484
 485         idx=0;
 486         for(t1 = strtok(string,delim);t1 != NULL; t1 = strtok(NULL, delim)) {
 487                 if (is_numeric(t1) && idx<MAX_VALUE_LIST) {
 488                         array[idx]=strtoul(t1,NULL,10);
 489                         idx++;
 490                 } else
 491                         return FALSE;
 492         }
 493         return TRUE;
 494 }
 495
 496 void preparelist(char *string) {
 497         /* Replace all , with & which is the delimiter for the request */
 498         int i;
 499
 500         for (i = 0; (size_t)i < strlen(string); i++)
 501                 if (string[i] == ',') {
 502                         string[i]='&';
 503                 }
 504 }
 505
 506
 507
 508
 509
 510 \f
 511 void print_help(void)
 512 {
 513         print_revision(progname,"$Revision$");
 514         printf (_("\
 515 Copyright (c) 2000 Yves Rubin (rubiyz@yahoo.com)\n\n\
 516 This plugin collects data from the NSClient service running on a\n\
 517 Windows NT/2000/XP server.\n\n"));
 518         print_usage();
 519   printf (_("\nOptions:\n\
 520 -H, --hostname=HOST\n\
 521   Name of the host to check\n\
 522 -p, --port=INTEGER\n\
 523   Optional port number (default: %d)\n\
 524 -s <password>\n\
 525   Password needed for the request\n\
 526 -w, --warning=INTEGER\n\
 527   Threshold which will result in a warning status\n\
 528 -c, --critical=INTEGER\n\
 529   Threshold which will result in a critical status\n\
 530 -t, --timeout=INTEGER\n\
 531   Seconds before connection attempt times out (default: %d)\n\
 532 -h, --help\n\
 533   Print this help screen\n\
 534 -V, --version\n\
 535   Print version information\n"),
 536                 PORT, DEFAULT_SOCKET_TIMEOUT);
 537   printf (_("\
 538 -v, --variable=STRING\n\
 539   Variable to check.  Valid variables are:\n"));
 540   printf (_("\
 541    CLIENTVERSION = Get the NSClient version\n\
 542      If -l <version> is specified, will return warning if versions differ.\n"));
 543   printf (_("\
 544    CPULOAD = Average CPU load on last x minutes.\n\
 545      Request a -l parameter with the following syntax:\n\
 546      -l <minutes range>,<warning threshold>,<critical threshold>.\n\
 547      <minute range> should be less than 24*60.\n\
 548      Thresholds are percentage and up to 10 requests can be done in one shot.\n\
 549      ie: -l 60,90,95,120,90,95\n"));
 550   printf (_("\
 551    UPTIME = Get the uptime of the machine.\n\
 552      No specific parameters. No warning or critical threshold\n"));
 553   printf (_("\
 554    USEDDISKSPACE = Size and percentage of disk use.\n\
 555      Request a -l parameter containing the drive letter only.\n\
 556      Warning and critical thresholds can be specified with -w and -c.\n"));
 557   printf (_("\
 558    MEMUSE = Memory use.\n\
 559      Warning and critical thresholds can be specified with -w and -c.\n"));
 560   printf (_("\
 561    SERVICESTATE = Check the state of one or several services.\n\
 562      Request a -l parameters with the following syntax:\n\
 563      -l <service1>,<service2>,<service3>,...\n\
 564      You can specify -d SHOWALL in case you want to see working services\n\
 565                  in the returned string.\n"));
 566   printf (_("\
 567    PROCSTATE = Check if one or several process are running.\n\
 568      Same syntax as SERVICESTATE.\n"));
 569   printf (_("\
 570    COUNTER = Check any performance counter of Windows NT/2000.\n\
 571      Request a -l parameters with the following syntax:\n\
 572                  -l \"\\\\<performance object>\\\\counter\",\"<description>\n\
 573      The <description> parameter is optional and \n\
 574      is given to a printf output command which require a float parameters.\n\
 575      Some examples:\n\
 576        \"Paging file usage is %%.2f %%%%\"\n\
 577        \"%%.f %%%% paging file used.\"\n"));
 578         printf (_("Notes:\n\
 579  - The NSClient service should be running on the server to get any information\n\
 580    (http://nsclient.ready2run.nl).\n\
 581  - Critical thresholds should be lower than warning thresholds\n"));
 582 }
 583
 584
 585
 586
 587 void print_usage(void)
 588 {
 589         printf(_("\
 590 Usage: %s -H host -v variable [-p port] [-w warning] [-c critical]\n\
 591   [-l params] [-d SHOWALL] [-t timeout]\n"), progname);
 592         printf (_(UT_HLP_VRS), progname, progname);
 593 }