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