diff options
Diffstat (limited to 'plugins/check_snmp.c')
| -rw-r--r-- | plugins/check_snmp.c | 805 |
1 files changed, 805 insertions, 0 deletions
diff --git a/plugins/check_snmp.c b/plugins/check_snmp.c new file mode 100644 index 00000000..2f970b3d --- /dev/null +++ b/plugins/check_snmp.c | |||
| @@ -0,0 +1,805 @@ | |||
| 1 | /****************************************************************************** | ||
| 2 | * | ||
| 3 | * CHECK_SNMP.C | ||
| 4 | * | ||
| 5 | * Program: SNMP plugin for Nagios | ||
| 6 | * License: GPL | ||
| 7 | * Copyright (c) 1999 Ethan Galstad (nagios@nagios.org) | ||
| 8 | * | ||
| 9 | * Last Modified: $Date$ | ||
| 10 | * | ||
| 11 | * Description: | ||
| 12 | * | ||
| 13 | * This plugin uses the 'snmpget' command included with the UCD-SNMP | ||
| 14 | * package. If you don't have the package installed you will need to | ||
| 15 | * download it from http://ucd-snmp.ucdavis.edu before you can use | ||
| 16 | * this plugin. | ||
| 17 | * | ||
| 18 | * License Information: | ||
| 19 | * | ||
| 20 | * This program is free software; you can redistribute it and/or modify | ||
| 21 | * it under the terms of the GNU General Public License as published by | ||
| 22 | * the Free Software Foundation; either version 2 of the License, or | ||
| 23 | * (at your option) any later version. | ||
| 24 | * | ||
| 25 | * This program is distributed in the hope that it will be useful, | ||
| 26 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 27 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
| 28 | * GNU General Public License for more details. | ||
| 29 | * | ||
| 30 | * You should have received a copy of the GNU General Public License | ||
| 31 | * along with this program; if not, write to the Free Software | ||
| 32 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | ||
| 33 | *./plugins/check_snmp 127.0.0.1 -c public -o .1.3.6.1.4.1.2021.9.1.2.1 | ||
| 34 | *****************************************************************************/ | ||
| 35 | |||
| 36 | #include "common.h" | ||
| 37 | #include "utils.h" | ||
| 38 | #include "popen.h" | ||
| 39 | |||
| 40 | #define PROGNAME check_snmp | ||
| 41 | |||
| 42 | #define mark(a) ((a)!=0?"*":"") | ||
| 43 | |||
| 44 | #define CHECK_UNDEF 0 | ||
| 45 | #define CRIT_PRESENT 1 | ||
| 46 | #define CRIT_STRING 2 | ||
| 47 | #define CRIT_REGEX 4 | ||
| 48 | #define CRIT_GT 8 | ||
| 49 | #define CRIT_LT 16 | ||
| 50 | #define CRIT_GE 32 | ||
| 51 | #define CRIT_LE 64 | ||
| 52 | #define CRIT_EQ 128 | ||
| 53 | #define CRIT_NE 256 | ||
| 54 | #define CRIT_RANGE 512 | ||
| 55 | #define WARN_PRESENT 1024 | ||
| 56 | #define WARN_STRING 2048 | ||
| 57 | #define WARN_REGEX 4096 | ||
| 58 | #define WARN_GT 8192 | ||
| 59 | #define WARN_LT 16384 | ||
| 60 | #define WARN_GE 32768 | ||
| 61 | #define WARN_LE 65536 | ||
| 62 | #define WARN_EQ 131072 | ||
| 63 | #define WARN_NE 262144 | ||
| 64 | #define WARN_RANGE 524288 | ||
| 65 | |||
| 66 | #define MAX_OIDS 8 | ||
| 67 | #define MAX_DELIM_LENGTH 8 | ||
| 68 | #define DEFAULT_DELIMITER "=" | ||
| 69 | #define DEFAULT_OUTPUT_DELIMITER " " | ||
| 70 | |||
| 71 | void print_usage (void); | ||
| 72 | void print_help (char *); | ||
| 73 | int process_arguments (int, char **); | ||
| 74 | int call_getopt (int, char **); | ||
| 75 | int check_num (int); | ||
| 76 | char *clarify_message (char *); | ||
| 77 | int lu_getll (unsigned long *, char *); | ||
| 78 | int lu_getul (unsigned long *, char *); | ||
| 79 | char *thisarg (char *str); | ||
| 80 | char *nextarg (char *str); | ||
| 81 | |||
| 82 | #ifdef HAVE_REGEX_H | ||
| 83 | #include <regex.h> | ||
| 84 | char regex_expect[MAX_INPUT_BUFFER] = ""; | ||
| 85 | regex_t preg; | ||
| 86 | regmatch_t pmatch[10]; | ||
| 87 | char timestamp[10] = ""; | ||
| 88 | char regex[MAX_INPUT_BUFFER]; | ||
| 89 | char errbuf[MAX_INPUT_BUFFER]; | ||
| 90 | int cflags = REG_EXTENDED | REG_NOSUB | REG_NEWLINE; | ||
| 91 | int eflags = 0; | ||
| 92 | int errcode, excode; | ||
| 93 | #endif | ||
| 94 | |||
| 95 | char *server_address = NULL; | ||
| 96 | char *community = NULL; | ||
| 97 | char oid[MAX_INPUT_BUFFER] = ""; | ||
| 98 | char *label = NULL; | ||
| 99 | char *units = NULL; | ||
| 100 | char string_value[MAX_INPUT_BUFFER] = ""; | ||
| 101 | char **labels = NULL; | ||
| 102 | char **unitv = NULL; | ||
| 103 | int nlabels = 0; | ||
| 104 | int labels_size = 8; | ||
| 105 | int nunits = 0; | ||
| 106 | int unitv_size = 8; | ||
| 107 | unsigned long lower_warn_lim[MAX_OIDS]; | ||
| 108 | unsigned long upper_warn_lim[MAX_OIDS]; | ||
| 109 | unsigned long lower_crit_lim[MAX_OIDS]; | ||
| 110 | unsigned long upper_crit_lim[MAX_OIDS]; | ||
| 111 | unsigned long response_value[MAX_OIDS]; | ||
| 112 | int check_warning_value = FALSE; | ||
| 113 | int check_critical_value = FALSE; | ||
| 114 | int eval_method[MAX_OIDS]; | ||
| 115 | char *delimiter = NULL; | ||
| 116 | char *output_delim = NULL; | ||
| 117 | |||
| 118 | |||
| 119 | int | ||
| 120 | main (int argc, char **argv) | ||
| 121 | { | ||
| 122 | int i = 0; | ||
| 123 | int iresult = STATE_UNKNOWN; | ||
| 124 | int found = 0; | ||
| 125 | int result = STATE_DEPENDENT; | ||
| 126 | char input_buffer[MAX_INPUT_BUFFER]; | ||
| 127 | char *command_line = NULL; | ||
| 128 | char *response = NULL; | ||
| 129 | char *outbuff = NULL; | ||
| 130 | char *output = NULL; | ||
| 131 | char *ptr = NULL; | ||
| 132 | char *p2 = NULL; | ||
| 133 | char *show = NULL; | ||
| 134 | |||
| 135 | labels = malloc (labels_size); | ||
| 136 | unitv = malloc (unitv_size); | ||
| 137 | outbuff = strscpy (outbuff, ""); | ||
| 138 | for (i = 0; i < MAX_OIDS; i++) | ||
| 139 | eval_method[i] = CHECK_UNDEF; | ||
| 140 | i = 0; | ||
| 141 | |||
| 142 | if (process_arguments (argc, argv) == ERROR) | ||
| 143 | usage ("Incorrect arguments supplied\n"); | ||
| 144 | |||
| 145 | /* create the command line to execute */ | ||
| 146 | command_line = ssprintf | ||
| 147 | (command_line, | ||
| 148 | "%s -m ALL -v 1 %s %s %s", | ||
| 149 | PATH_TO_SNMPGET, server_address, community, oid); | ||
| 150 | |||
| 151 | /* run the command */ | ||
| 152 | child_process = spopen (command_line); | ||
| 153 | if (child_process == NULL) { | ||
| 154 | printf ("Could not open pipe: %s\n", command_line); | ||
| 155 | exit (STATE_UNKNOWN); | ||
| 156 | } | ||
| 157 | |||
| 158 | child_stderr = fdopen (child_stderr_array[fileno (child_process)], "r"); | ||
| 159 | if (child_stderr == NULL) { | ||
| 160 | printf ("Could not open stderr for %s\n", command_line); | ||
| 161 | } | ||
| 162 | |||
| 163 | while (fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_process)) | ||
| 164 | output = strscat (output, input_buffer); | ||
| 165 | |||
| 166 | ptr = output; | ||
| 167 | |||
| 168 | while (ptr) { | ||
| 169 | |||
| 170 | ptr = strstr (ptr, delimiter); | ||
| 171 | if (ptr == NULL) | ||
| 172 | break; | ||
| 173 | |||
| 174 | ptr += strlen (delimiter); | ||
| 175 | ptr += strspn (ptr, " "); | ||
| 176 | |||
| 177 | found++; | ||
| 178 | |||
| 179 | if (ptr[0] == '"') { | ||
| 180 | ptr++; | ||
| 181 | response = strpcpy (response, ptr, "\""); | ||
| 182 | ptr = strpbrk (ptr, "\""); | ||
| 183 | ptr += strspn (ptr, "\"\n"); | ||
| 184 | } | ||
| 185 | else { | ||
| 186 | response = strpcpy (response, ptr, "\n"); | ||
| 187 | ptr = strpbrk (ptr, "\n"); | ||
| 188 | ptr += strspn (ptr, "\n"); | ||
| 189 | while | ||
| 190 | (strstr (ptr, delimiter) && | ||
| 191 | strstr (ptr, "\n") && strstr (ptr, "\n") < strstr (ptr, delimiter)) { | ||
| 192 | response = strpcat (response, ptr, "\n"); | ||
| 193 | ptr = strpbrk (ptr, "\n"); | ||
| 194 | } | ||
| 195 | if (ptr && strstr (ptr, delimiter) == NULL) { | ||
| 196 | response = strscat (response, ptr); | ||
| 197 | ptr = NULL; | ||
| 198 | } | ||
| 199 | } | ||
| 200 | |||
| 201 | if (strstr (response, "Gauge: ")) | ||
| 202 | show = strstr (response, "Gauge: ") + 7; | ||
| 203 | else if (strstr (response, "Gauge32: ")) | ||
| 204 | show = strstr (response, "Gauge32: ") + 9; | ||
| 205 | else | ||
| 206 | show = response; | ||
| 207 | p2 = show; | ||
| 208 | |||
| 209 | if (eval_method[i] & CRIT_GT || | ||
| 210 | eval_method[i] & CRIT_LT || | ||
| 211 | eval_method[i] & CRIT_GE || | ||
| 212 | eval_method[i] & CRIT_LE || | ||
| 213 | eval_method[i] & CRIT_EQ || | ||
| 214 | eval_method[i] & CRIT_NE || | ||
| 215 | eval_method[i] & WARN_GT || | ||
| 216 | eval_method[i] & WARN_LT || | ||
| 217 | eval_method[i] & WARN_GE || | ||
| 218 | eval_method[i] & WARN_LE || | ||
| 219 | eval_method[i] & WARN_EQ || eval_method[i] & WARN_NE) { | ||
| 220 | p2 = strpbrk (p2, "0123456789"); | ||
| 221 | response_value[i] = strtoul (p2, NULL, 10); | ||
| 222 | iresult = check_num (i); | ||
| 223 | show = ssprintf (show, "%d", response_value[i]); | ||
| 224 | } | ||
| 225 | |||
| 226 | else if (eval_method[i] & CRIT_STRING) { | ||
| 227 | if (strcmp (response, string_value)) | ||
| 228 | iresult = STATE_CRITICAL; | ||
| 229 | else | ||
| 230 | iresult = STATE_OK; | ||
| 231 | } | ||
| 232 | |||
| 233 | else if (eval_method[i] & CRIT_REGEX) { | ||
| 234 | #ifdef HAVE_REGEX_H | ||
| 235 | excode = regexec (&preg, response, 10, pmatch, eflags); | ||
| 236 | if (excode == 0) { | ||
| 237 | iresult = STATE_OK; | ||
| 238 | } | ||
| 239 | else if (excode != REG_NOMATCH) { | ||
| 240 | regerror (excode, &preg, errbuf, MAX_INPUT_BUFFER); | ||
| 241 | printf ("Execute Error: %s\n", errbuf); | ||
| 242 | exit (STATE_CRITICAL); | ||
| 243 | } | ||
| 244 | else { | ||
| 245 | iresult = STATE_CRITICAL; | ||
| 246 | } | ||
| 247 | #else | ||
| 248 | printf ("SNMP UNKNOWN: call for regex which was not a compiled option"); | ||
| 249 | exit (STATE_UNKNOWN); | ||
| 250 | #endif | ||
| 251 | } | ||
| 252 | |||
| 253 | else { | ||
| 254 | if (response) | ||
| 255 | iresult = STATE_OK; | ||
| 256 | else if (eval_method[i] & CRIT_PRESENT) | ||
| 257 | iresult = STATE_CRITICAL; | ||
| 258 | else | ||
| 259 | iresult = STATE_WARNING; | ||
| 260 | } | ||
| 261 | |||
| 262 | result = max (result, iresult); | ||
| 263 | |||
| 264 | if (nlabels > 1 && i < nlabels && labels[i] != NULL) | ||
| 265 | outbuff = ssprintf | ||
| 266 | (outbuff, | ||
| 267 | "%s%s%s %s%s%s", | ||
| 268 | outbuff, | ||
| 269 | (i == 0) ? " " : output_delim, | ||
| 270 | labels[i], mark (iresult), show, mark (iresult)); | ||
| 271 | else | ||
| 272 | outbuff = ssprintf | ||
| 273 | (outbuff, | ||
| 274 | "%s%s%s%s%s", | ||
| 275 | outbuff, | ||
| 276 | (i == 0) ? " " : output_delim, mark (iresult), show, mark (iresult)); | ||
| 277 | |||
| 278 | if (nunits > 0 && i < nunits) | ||
| 279 | outbuff = ssprintf (outbuff, "%s %s", outbuff, unitv[i]); | ||
| 280 | |||
| 281 | i++; | ||
| 282 | |||
| 283 | } /* end while */ | ||
| 284 | |||
| 285 | if (found == 0) | ||
| 286 | terminate | ||
| 287 | (STATE_UNKNOWN, | ||
| 288 | "%s problem - No data recieved from host\nCMD: %s\n", | ||
| 289 | label, command_line); | ||
| 290 | |||
| 291 | /* WARNING if output found on stderr */ | ||
| 292 | if (fgets (input_buffer, MAX_INPUT_BUFFER - 1, child_stderr)) | ||
| 293 | result = max (result, STATE_WARNING); | ||
| 294 | |||
| 295 | /* close stderr */ | ||
| 296 | (void) fclose (child_stderr); | ||
| 297 | |||
| 298 | /* close the pipe */ | ||
| 299 | if (spclose (child_process)) | ||
| 300 | result = max (result, STATE_WARNING); | ||
| 301 | |||
| 302 | if (nunits > 0) | ||
| 303 | printf ("%s %s -%s\n", label, state_text (result), outbuff); | ||
| 304 | else | ||
| 305 | printf ("%s %s -%s %s\n", label, state_text (result), outbuff, units); | ||
| 306 | |||
| 307 | return result; | ||
| 308 | } | ||
| 309 | |||
| 310 | /* process command-line arguments */ | ||
| 311 | int | ||
| 312 | process_arguments (int argc, char **argv) | ||
| 313 | { | ||
| 314 | int c; | ||
| 315 | |||
| 316 | if (argc < 2) | ||
| 317 | return ERROR; | ||
| 318 | |||
| 319 | for (c = 1; c < argc; c++) { | ||
| 320 | if (strcmp ("-to", argv[c]) == 0) | ||
| 321 | strcpy (argv[c], "-t"); | ||
| 322 | if (strcmp ("-wv", argv[c]) == 0) | ||
| 323 | strcpy (argv[c], "-w"); | ||
| 324 | if (strcmp ("-cv", argv[c]) == 0) | ||
| 325 | strcpy (argv[c], "-c"); | ||
| 326 | } | ||
| 327 | |||
| 328 | c = 0; | ||
| 329 | while (c += (call_getopt (argc - c, &argv[c]))) { | ||
| 330 | if (argc <= c) | ||
| 331 | break; | ||
| 332 | if (server_address == NULL) | ||
| 333 | server_address = strscpy (NULL, argv[c]); | ||
| 334 | } | ||
| 335 | |||
| 336 | if (community == NULL) | ||
| 337 | community = strscpy (NULL, "public"); | ||
| 338 | |||
| 339 | if (delimiter == NULL) | ||
| 340 | delimiter = strscpy (NULL, DEFAULT_DELIMITER); | ||
| 341 | |||
| 342 | if (output_delim == NULL) | ||
| 343 | output_delim = strscpy (NULL, DEFAULT_OUTPUT_DELIMITER); | ||
| 344 | |||
| 345 | if (label == NULL) | ||
| 346 | label = strscpy (NULL, "SNMP"); | ||
| 347 | |||
| 348 | if (units == NULL) | ||
| 349 | units = strscpy (NULL, ""); | ||
| 350 | |||
| 351 | return c; | ||
| 352 | } | ||
| 353 | |||
| 354 | int | ||
| 355 | call_getopt (int argc, char **argv) | ||
| 356 | { | ||
| 357 | char *ptr; | ||
| 358 | int c, i = 1; | ||
| 359 | int j = 0, jj = 0; | ||
| 360 | |||
| 361 | #ifdef HAVE_GETOPT_H | ||
| 362 | int option_index = 0; | ||
| 363 | static struct option long_options[] = { | ||
| 364 | {"help", no_argument, 0, 'h'}, | ||
| 365 | {"version", no_argument, 0, 'V'}, | ||
| 366 | {"timeout", required_argument, 0, 't'}, | ||
| 367 | {"critical", required_argument, 0, 'c'}, | ||
| 368 | {"warning", required_argument, 0, 'w'}, | ||
| 369 | {"hostname", required_argument, 0, 'H'}, | ||
| 370 | {"community", required_argument, 0, 'C'}, | ||
| 371 | {"oid", required_argument, 0, 'o'}, | ||
| 372 | {"object", required_argument, 0, 'o'}, | ||
| 373 | {"delimiter", required_argument, 0, 'd'}, | ||
| 374 | {"output-delimiter", required_argument, 0, 'D'}, | ||
| 375 | {"string", required_argument, 0, 's'}, | ||
| 376 | {"regex", required_argument, 0, 'r'}, | ||
| 377 | {"ereg", required_argument, 0, 'r'}, | ||
| 378 | {"eregi", required_argument, 0, 'R'}, | ||
| 379 | {"label", required_argument, 0, 'l'}, | ||
| 380 | {"units", required_argument, 0, 'u'}, | ||
| 381 | {0, 0, 0, 0} | ||
| 382 | }; | ||
| 383 | #endif | ||
| 384 | |||
| 385 | while (1) { | ||
| 386 | #ifdef HAVE_GETOPT_H | ||
| 387 | c = | ||
| 388 | getopt_long (argc, argv, "+?hVt:c:w:H:C:o:d:D:s:R:r:l:u:", | ||
| 389 | long_options, &option_index); | ||
| 390 | #else | ||
| 391 | c = getopt (argc, argv, "+?hVt:c:w:H:C:o:d:D:s:R:r:l:u:"); | ||
| 392 | #endif | ||
| 393 | |||
| 394 | if (c == -1 || c == EOF) | ||
| 395 | break; | ||
| 396 | |||
| 397 | i++; | ||
| 398 | switch (c) { | ||
| 399 | case 't': | ||
| 400 | case 'c': | ||
| 401 | case 'w': | ||
| 402 | case 'H': | ||
| 403 | case 'C': | ||
| 404 | case 'o': | ||
| 405 | case 'd': | ||
| 406 | case 'D': | ||
| 407 | case 's': | ||
| 408 | case 'R': | ||
| 409 | case 'r': | ||
| 410 | case 'l': | ||
| 411 | case 'u': | ||
| 412 | i++; | ||
| 413 | } | ||
| 414 | |||
| 415 | switch (c) { | ||
| 416 | case '?': /* help */ | ||
| 417 | printf ("%s: Unknown argument: %s\n\n", my_basename (argv[0]), optarg); | ||
| 418 | print_usage (); | ||
| 419 | exit (STATE_UNKNOWN); | ||
| 420 | case 'h': /* help */ | ||
| 421 | print_help (my_basename (argv[0])); | ||
| 422 | exit (STATE_OK); | ||
| 423 | case 'V': /* version */ | ||
| 424 | print_revision (my_basename (argv[0]), "$Revision$"); | ||
| 425 | exit (STATE_OK); | ||
| 426 | case 't': /* timeout period */ | ||
| 427 | if (!is_integer (optarg)) { | ||
| 428 | printf ("%s: Timeout Interval must be an integer!\n\n", | ||
| 429 | my_basename (argv[0])); | ||
| 430 | print_usage (); | ||
| 431 | exit (STATE_UNKNOWN); | ||
| 432 | } | ||
| 433 | timeout_interval = atoi (optarg); | ||
| 434 | break; | ||
| 435 | case 'c': /* critical time threshold */ | ||
| 436 | if (strspn (optarg, "0123456789:,") < strlen (optarg)) { | ||
| 437 | printf ("Invalid critical threshold: %s\n", optarg); | ||
| 438 | print_usage (); | ||
| 439 | exit (STATE_UNKNOWN); | ||
| 440 | } | ||
| 441 | for (ptr = optarg, jj = 0; ptr && jj < MAX_OIDS; jj++) { | ||
| 442 | if (lu_getll (&lower_crit_lim[jj], ptr) == 1) | ||
| 443 | eval_method[jj] |= CRIT_LT; | ||
| 444 | if (lu_getul (&upper_crit_lim[jj], ptr) == 1) | ||
| 445 | eval_method[jj] |= CRIT_GT; | ||
| 446 | (ptr = index (ptr, ',')) ? ptr++ : ptr; | ||
| 447 | } | ||
| 448 | break; | ||
| 449 | case 'w': /* warning time threshold */ | ||
| 450 | if (strspn (optarg, "0123456789:,") < strlen (optarg)) { | ||
| 451 | printf ("Invalid warning threshold: %s\n", optarg); | ||
| 452 | print_usage (); | ||
| 453 | exit (STATE_UNKNOWN); | ||
| 454 | } | ||
| 455 | for (ptr = optarg, jj = 0; ptr && jj < MAX_OIDS; jj++) { | ||
| 456 | if (lu_getll (&lower_warn_lim[jj], ptr) == 1) | ||
| 457 | eval_method[jj] |= WARN_LT; | ||
| 458 | if (lu_getul (&upper_warn_lim[jj], ptr) == 1) | ||
| 459 | eval_method[jj] |= WARN_GT; | ||
| 460 | (ptr = index (ptr, ',')) ? ptr++ : ptr; | ||
| 461 | } | ||
| 462 | break; | ||
| 463 | case 'H': /* Host or server */ | ||
| 464 | server_address = strscpy (server_address, optarg); | ||
| 465 | break; | ||
| 466 | case 'C': /* group or community */ | ||
| 467 | community = strscpy (community, optarg); | ||
| 468 | break; | ||
| 469 | case 'o': /* object identifier */ | ||
| 470 | for (ptr = optarg; (ptr = index (ptr, ',')); ptr++) | ||
| 471 | ptr[0] = ' '; | ||
| 472 | strncpy (oid, optarg, sizeof (oid) - 1); | ||
| 473 | oid[sizeof (oid) - 1] = 0; | ||
| 474 | for (ptr = optarg, j = 1; (ptr = index (ptr, ' ')); ptr++) | ||
| 475 | j++; | ||
| 476 | break; | ||
| 477 | case 'd': /* delimiter */ | ||
| 478 | delimiter = strscpy (delimiter, optarg); | ||
| 479 | break; | ||
| 480 | case 'D': /* output-delimiter */ | ||
| 481 | output_delim = strscpy (output_delim, optarg); | ||
| 482 | break; | ||
| 483 | case 's': /* string or substring */ | ||
| 484 | strncpy (string_value, optarg, sizeof (string_value) - 1); | ||
| 485 | string_value[sizeof (string_value) - 1] = 0; | ||
| 486 | eval_method[jj++] = CRIT_STRING; | ||
| 487 | break; | ||
| 488 | case 'R': /* regex */ | ||
| 489 | #ifdef HAVE_REGEX_H | ||
| 490 | cflags = REG_ICASE; | ||
| 491 | #endif | ||
| 492 | case 'r': /* regex */ | ||
| 493 | #ifdef HAVE_REGEX_H | ||
| 494 | cflags |= REG_EXTENDED | REG_NOSUB | REG_NEWLINE; | ||
| 495 | strncpy (regex_expect, optarg, sizeof (regex_expect) - 1); | ||
| 496 | regex_expect[sizeof (regex_expect) - 1] = 0; | ||
| 497 | errcode = regcomp (&preg, regex_expect, cflags); | ||
| 498 | if (errcode != 0) { | ||
| 499 | regerror (errcode, &preg, errbuf, MAX_INPUT_BUFFER); | ||
| 500 | printf ("Could Not Compile Regular Expression"); | ||
| 501 | return ERROR; | ||
| 502 | } | ||
| 503 | eval_method[jj++] = CRIT_REGEX; | ||
| 504 | #else | ||
| 505 | printf ("SNMP UNKNOWN: call for regex which was not a compiled option"); | ||
| 506 | exit (STATE_UNKNOWN); | ||
| 507 | #endif | ||
| 508 | break; | ||
| 509 | case 'l': /* label */ | ||
| 510 | label = optarg; | ||
| 511 | nlabels++; | ||
| 512 | if (nlabels >= labels_size) { | ||
| 513 | labels_size += 8; | ||
| 514 | labels = realloc (labels, labels_size); | ||
| 515 | if (labels == NULL) | ||
| 516 | terminate (STATE_UNKNOWN, | ||
| 517 | "Could not realloc() labels[%d]", nlabels); | ||
| 518 | } | ||
| 519 | labels[nlabels - 1] = optarg; | ||
| 520 | ptr = thisarg (optarg); | ||
| 521 | if (strstr (ptr, "'") == ptr) | ||
| 522 | labels[nlabels - 1] = ptr + 1; | ||
| 523 | else | ||
| 524 | labels[nlabels - 1] = ptr; | ||
| 525 | while (ptr && (ptr = nextarg (ptr))) { | ||
| 526 | if (nlabels >= labels_size) { | ||
| 527 | labels_size += 8; | ||
| 528 | labels = realloc (labels, labels_size); | ||
| 529 | if (labels == NULL) | ||
| 530 | terminate (STATE_UNKNOWN, "Could not realloc() labels\n"); | ||
| 531 | } | ||
| 532 | labels++; | ||
| 533 | ptr = thisarg (ptr); | ||
| 534 | if (strstr (ptr, "'") == ptr) | ||
| 535 | labels[nlabels - 1] = ptr + 1; | ||
| 536 | else | ||
| 537 | labels[nlabels - 1] = ptr; | ||
| 538 | } | ||
| 539 | break; | ||
| 540 | case 'u': /* units */ | ||
| 541 | units = optarg; | ||
| 542 | nunits++; | ||
| 543 | if (nunits >= unitv_size) { | ||
| 544 | unitv_size += 8; | ||
| 545 | unitv = realloc (unitv, unitv_size); | ||
| 546 | if (unitv == NULL) | ||
| 547 | terminate (STATE_UNKNOWN, | ||
| 548 | "Could not realloc() units [%d]\n", nunits); | ||
| 549 | } | ||
| 550 | unitv[nunits - 1] = optarg; | ||
| 551 | ptr = thisarg (optarg); | ||
| 552 | if (strstr (ptr, "'") == ptr) | ||
| 553 | unitv[nunits - 1] = ptr + 1; | ||
| 554 | else | ||
| 555 | unitv[nunits - 1] = ptr; | ||
| 556 | while (ptr && (ptr = nextarg (ptr))) { | ||
| 557 | if (nunits >= unitv_size) { | ||
| 558 | unitv_size += 8; | ||
| 559 | unitv = realloc (unitv, unitv_size); | ||
| 560 | if (units == NULL) | ||
| 561 | terminate (STATE_UNKNOWN, "Could not realloc() units\n"); | ||
| 562 | } | ||
| 563 | nunits++; | ||
| 564 | ptr = thisarg (ptr); | ||
| 565 | if (strstr (ptr, "'") == ptr) | ||
| 566 | unitv[nunits - 1] = ptr + 1; | ||
| 567 | else | ||
| 568 | unitv[nunits - 1] = ptr; | ||
| 569 | } | ||
| 570 | break; | ||
| 571 | } | ||
| 572 | } | ||
| 573 | return i; | ||
| 574 | } | ||
| 575 | |||
| 576 | void | ||
| 577 | print_usage (void) | ||
| 578 | { | ||
| 579 | printf | ||
| 580 | ("Usage: check_snmp -H <ip_address> -o <OID> [-w warn_range] [-c crit_range] \n" | ||
| 581 | " [-C community] [-s string] [-r regex] [-R regexi] [-t timeout]\n" | ||
| 582 | " [-l label] [-u units] [-d delimiter] [-D output-delimiter]\n" | ||
| 583 | " check_snmp --help\n" " check_snmp --version\n"); | ||
| 584 | } | ||
| 585 | |||
| 586 | void | ||
| 587 | print_help (char *cmd) | ||
| 588 | { | ||
| 589 | printf ("Copyright (c) 1999 Ethan Galstad (nagios@nagios.org)\n" | ||
| 590 | "License: GPL\n\n"); | ||
| 591 | print_usage (); | ||
| 592 | printf | ||
| 593 | ("\nOptions:\n" | ||
| 594 | " -h, --help\n" | ||
| 595 | " Print detailed help screen\n" | ||
| 596 | " -V, --version\n" | ||
| 597 | " Print version information\n" | ||
| 598 | " -H, --hostname=HOST\n" | ||
| 599 | " Name or IP address of the device you wish to query\n" | ||
| 600 | " -o, --oid=OID(s)\n" | ||
| 601 | " Object identifier(s) whose value you wish to query\n" | ||
| 602 | " -w, --warning=INTEGER_RANGE(s)\n" | ||
| 603 | " Range(s) which will not result in a WARNING status\n" | ||
| 604 | " -c, --critical=INTEGER_RANGE(s)\n" | ||
| 605 | " Range(s) which will not result in a CRITICAL status\n" | ||
| 606 | " -C, --community=STRING\n" | ||
| 607 | " Optional community string for SNMP communication\n" | ||
| 608 | " (default is \"public\")\n" | ||
| 609 | " -u, --units=STRING\n" | ||
| 610 | " Units label(s) for output data (e.g., 'sec.').\n" | ||
| 611 | " -d, --delimiter=STRING\n" | ||
| 612 | " Delimiter to use when parsing returned data. Default is \"%s\"\n" | ||
| 613 | " Any data on the right hand side of the delimiter is considered\n" | ||
| 614 | " to be the data that should be used in the evaluation.\n" | ||
| 615 | " -t, --timeout=INTEGER\n" | ||
| 616 | " Seconds to wait before plugin times out (see also nagios server timeout)\n" | ||
| 617 | " -D, --output-delimiter=STRING\n" | ||
| 618 | " Separates output on multiple OID requests\n" | ||
| 619 | " -s, --string=STRING\n" | ||
| 620 | " Return OK state (for that OID) if STRING is an exact match\n" | ||
| 621 | " -r, --ereg=REGEX\n" | ||
| 622 | " Return OK state (for that OID) if extended regular expression REGEX matches\n" | ||
| 623 | " -R, --eregi=REGEX\n" | ||
| 624 | " Return OK state (for that OID) if case-insensitive extended REGEX matches\n" | ||
| 625 | " -l, --label=STRING\n" | ||
| 626 | " Prefix label for output from plugin (default -s 'SNMP')\n\n" | ||
| 627 | "- This plugin uses the 'snmpget' command included with the UCD-SNMP package.\n" | ||
| 628 | " If you don't have the package installed, you will need to download it from\n" | ||
| 629 | " http://ucd-snmp.ucdavis.edu before you can use this plugin.\n" | ||
| 630 | "- Multiple OIDs may be indicated by a comma- or space-delimited list (lists with\n" | ||
| 631 | " internal spaces must be quoted)\n" | ||
| 632 | "- Ranges are inclusive and are indicated with colons. When specified as\n" | ||
| 633 | " 'min:max' a STATE_OK will be returned if the result is within the indicated\n" | ||
| 634 | " range or is equal to the upper or lower bound. A non-OK state will be\n" | ||
| 635 | " returned if the result is outside the specified range.\n" | ||
| 636 | "- If spcified in the order 'max:min' a non-OK state will be returned if the\n" | ||
| 637 | " result is within the (inclusive) range.\n" | ||
| 638 | "- Upper or lower bounds may be omitted to skip checking the respective limit.\n" | ||
| 639 | "- Bare integers are interpreted as upper limits.\n" | ||
| 640 | "- When checking multiple OIDs, separate ranges by commas like '-w 1:10,1:,:20'\n" | ||
| 641 | "- Note that only one string and one regex may be checked at present\n" | ||
| 642 | "- All evaluation methods other than PR, STR, and SUBSTR expect that the value\n" | ||
| 643 | " returned from the SNMP query is an unsigned integer.\n\n", | ||
| 644 | DEFAULT_DELIMITER); | ||
| 645 | } | ||
| 646 | |||
| 647 | char * | ||
| 648 | clarify_message (char *msg) | ||
| 649 | { | ||
| 650 | int i = 0; | ||
| 651 | int foo; | ||
| 652 | char tmpmsg_c[MAX_INPUT_BUFFER]; | ||
| 653 | char *tmpmsg = (char *) &tmpmsg_c; | ||
| 654 | tmpmsg = strcpy (tmpmsg, msg); | ||
| 655 | if (!strncmp (tmpmsg, " Hex:", 5)) { | ||
| 656 | tmpmsg = strtok (tmpmsg, ":"); | ||
| 657 | while ((tmpmsg = strtok (NULL, " "))) { | ||
| 658 | foo = strtol (tmpmsg, NULL, 16); | ||
| 659 | /* Translate chars that are not the same value in the printers | ||
| 660 | * character set. | ||
| 661 | */ | ||
| 662 | switch (foo) { | ||
| 663 | case 208: | ||
| 664 | { | ||
| 665 | foo = 197; | ||
| 666 | break; | ||
| 667 | } | ||
| 668 | case 216: | ||
| 669 | { | ||
| 670 | foo = 196; | ||
| 671 | break; | ||
| 672 | } | ||
| 673 | } | ||
| 674 | msg[i] = foo; | ||
| 675 | i++; | ||
| 676 | } | ||
| 677 | msg[i] = 0; | ||
| 678 | } | ||
| 679 | return (msg); | ||
| 680 | } | ||
| 681 | |||
| 682 | |||
| 683 | int | ||
| 684 | check_num (int i) | ||
| 685 | { | ||
| 686 | int result; | ||
| 687 | result = STATE_OK; | ||
| 688 | if (eval_method[i] & WARN_GT && eval_method[i] & WARN_LT && | ||
| 689 | lower_warn_lim[i] > upper_warn_lim[i]) { | ||
| 690 | if (response_value[i] <= lower_warn_lim[i] && | ||
| 691 | response_value[i] >= upper_warn_lim[i]) { | ||
| 692 | result = STATE_WARNING; | ||
| 693 | } | ||
| 694 | } | ||
| 695 | else if | ||
| 696 | ((eval_method[i] & WARN_GT && response_value[i] > upper_warn_lim[i]) || | ||
| 697 | (eval_method[i] & WARN_GE && response_value[i] >= upper_warn_lim[i]) || | ||
| 698 | (eval_method[i] & WARN_LT && response_value[i] < lower_warn_lim[i]) || | ||
| 699 | (eval_method[i] & WARN_LE && response_value[i] <= lower_warn_lim[i]) || | ||
| 700 | (eval_method[i] & WARN_EQ && response_value[i] == upper_warn_lim[i]) || | ||
| 701 | (eval_method[i] & WARN_NE && response_value[i] != upper_warn_lim[i])) { | ||
| 702 | result = STATE_WARNING; | ||
| 703 | } | ||
| 704 | |||
| 705 | if (eval_method[i] & CRIT_GT && eval_method[i] & CRIT_LT && | ||
| 706 | lower_warn_lim[i] > upper_warn_lim[i]) { | ||
| 707 | if (response_value[i] <= lower_crit_lim[i] && | ||
| 708 | response_value[i] >= upper_crit_lim[i]) { | ||
| 709 | result = STATE_CRITICAL; | ||
| 710 | } | ||
| 711 | } | ||
| 712 | else if | ||
| 713 | ((eval_method[i] & CRIT_GT && response_value[i] > upper_crit_lim[i]) || | ||
| 714 | (eval_method[i] & CRIT_GE && response_value[i] >= upper_crit_lim[i]) || | ||
| 715 | (eval_method[i] & CRIT_LT && response_value[i] < lower_crit_lim[i]) || | ||
| 716 | (eval_method[i] & CRIT_LE && response_value[i] <= lower_crit_lim[i]) || | ||
| 717 | (eval_method[i] & CRIT_EQ && response_value[i] == upper_crit_lim[i]) || | ||
| 718 | (eval_method[i] & CRIT_NE && response_value[i] != upper_crit_lim[i])) { | ||
| 719 | result = STATE_CRITICAL; | ||
| 720 | } | ||
| 721 | |||
| 722 | return result; | ||
| 723 | } | ||
| 724 | |||
| 725 | |||
| 726 | int | ||
| 727 | lu_getll (unsigned long *ll, char *str) | ||
| 728 | { | ||
| 729 | char tmp[100]; | ||
| 730 | if (strchr (str, ':') == NULL) | ||
| 731 | return 0; | ||
| 732 | if (strchr (str, ',') != NULL && (strchr (str, ',') < strchr (str, ':'))) | ||
| 733 | return 0; | ||
| 734 | if (sscanf (str, "%lu%[:]", ll, tmp) == 2) | ||
| 735 | return 1; | ||
| 736 | return 0; | ||
| 737 | } | ||
| 738 | |||
| 739 | int | ||
| 740 | lu_getul (unsigned long *ul, char *str) | ||
| 741 | { | ||
| 742 | char tmp[100]; | ||
| 743 | if (sscanf (str, "%lu%[^,]", ul, tmp) == 1) | ||
| 744 | return 1; | ||
| 745 | if (sscanf (str, ":%lu%[^,]", ul, tmp) == 1) | ||
| 746 | return 1; | ||
| 747 | if (sscanf (str, "%*u:%lu%[^,]", ul, tmp) == 1) | ||
| 748 | return 1; | ||
| 749 | return 0; | ||
| 750 | } | ||
| 751 | |||
| 752 | |||
| 753 | |||
| 754 | |||
| 755 | |||
| 756 | |||
| 757 | /* trim leading whitespace | ||
| 758 | if there is a leading quote, make sure it balances */ | ||
| 759 | |||
| 760 | char * | ||
| 761 | thisarg (char *str) | ||
| 762 | { | ||
| 763 | str += strspn (str, " \t\r\n"); /* trim any leading whitespace */ | ||
| 764 | if (strstr (str, "'") == str) { /* handle SIMPLE quoted strings */ | ||
| 765 | if (strlen (str) == 1 || !strstr (str + 1, "'")) | ||
| 766 | terminate (STATE_UNKNOWN, "Unbalanced quotes\n"); | ||
| 767 | } | ||
| 768 | return str; | ||
| 769 | } | ||
| 770 | |||
| 771 | |||
| 772 | /* if there's a leading quote, advance to the trailing quote | ||
| 773 | set the trailing quote to '\x0' | ||
| 774 | if the string continues, advance beyond the comma */ | ||
| 775 | |||
| 776 | char * | ||
| 777 | nextarg (char *str) | ||
| 778 | { | ||
| 779 | if (strstr (str, "'") == str) { | ||
| 780 | if (strlen (str) > 1) { | ||
| 781 | str = strstr (str + 1, "'"); | ||
| 782 | str[0] = 0; | ||
| 783 | return (++str); | ||
| 784 | } | ||
| 785 | else { | ||
| 786 | str[0] = 0; | ||
| 787 | return NULL; | ||
| 788 | } | ||
| 789 | } | ||
| 790 | if (strstr (str, ",") == str) { | ||
| 791 | if (strlen (str) > 1) { | ||
| 792 | str[0] = 0; | ||
| 793 | return (++str); | ||
| 794 | } | ||
| 795 | else { | ||
| 796 | str[0] = 0; | ||
| 797 | return NULL; | ||
| 798 | } | ||
| 799 | } | ||
| 800 | if ((str = strstr (str, ",")) && strlen (str) > 1) { | ||
| 801 | str[0] = 0; | ||
| 802 | return (++str); | ||
| 803 | } | ||
| 804 | return NULL; | ||
| 805 | } | ||
