096b3bded3478c95778d8b001a704deb2bf202dd
1 /******************************************************************************
3 This program is free software; you can redistribute it and/or modify
4 it under the terms of the GNU General Public License as published by
5 the Free Software Foundation; either version 2 of the License, or
6 (at your option) any later version.
8 This program is distributed in the hope that it will be useful,
9 but WITHOUT ANY WARRANTY; without even the implied warranty of
10 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 GNU General Public License for more details.
13 You should have received a copy of the GNU General Public License
14 along with this program; if not, write to the Free Software
15 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
17 $Id$
19 ******************************************************************************/
21 #include "common.h"
22 #include "utils.h"
24 const char *progname = "check_mrtgtraf";
25 const char *revision = "$Revision$";
26 const char *copyright = "1999-2004";
27 const char *email = "nagiosplug-devel@lists.sourceforge.net";
29 int process_arguments (int, char **);
30 int validate_arguments (void);
31 void print_help(void);
32 void print_usage(void);
34 char *log_file = NULL;
35 int expire_minutes = -1;
36 int use_average = TRUE;
37 unsigned long incoming_warning_threshold = 0L;
38 unsigned long incoming_critical_threshold = 0L;
39 unsigned long outgoing_warning_threshold = 0L;
40 unsigned long outgoing_critical_threshold = 0L;
43 int
44 main (int argc, char **argv)
45 {
46 int result = STATE_UNKNOWN;
47 FILE *fp;
48 int line;
49 char input_buffer[MAX_INPUT_BUFFER];
50 char *temp_buffer;
51 time_t current_time;
52 char *error_message;
53 time_t timestamp = 0L;
54 unsigned long average_incoming_rate = 0L;
55 unsigned long average_outgoing_rate = 0L;
56 unsigned long maximum_incoming_rate = 0L;
57 unsigned long maximum_outgoing_rate = 0L;
58 unsigned long incoming_rate = 0L;
59 unsigned long outgoing_rate = 0L;
60 double adjusted_incoming_rate = 0.0;
61 double adjusted_outgoing_rate = 0.0;
62 char incoming_speed_rating[8];
63 char outgoing_speed_rating[8];
65 if (process_arguments (argc, argv) == ERROR)
66 usage4 (_("Could not parse arguments"));
68 /* open the MRTG log file for reading */
69 fp = fopen (log_file, "r");
70 if (fp == NULL)
71 usage4 (_("Unable to open MRTG log file"));
73 line = 0;
74 while (fgets (input_buffer, MAX_INPUT_BUFFER - 1, fp)) {
76 line++;
78 /* skip the first line of the log file */
79 if (line == 1)
80 continue;
82 /* break out of read loop */
83 /* if we've passed the number of entries we want to read */
84 if (line > 2)
85 break;
87 /* grab the timestamp */
88 temp_buffer = strtok (input_buffer, " ");
89 timestamp = strtoul (temp_buffer, NULL, 10);
91 /* grab the average incoming transfer rate */
92 temp_buffer = strtok (NULL, " ");
93 average_incoming_rate = strtoul (temp_buffer, NULL, 10);
95 /* grab the average outgoing transfer rate */
96 temp_buffer = strtok (NULL, " ");
97 average_outgoing_rate = strtoul (temp_buffer, NULL, 10);
99 /* grab the maximum incoming transfer rate */
100 temp_buffer = strtok (NULL, " ");
101 maximum_incoming_rate = strtoul (temp_buffer, NULL, 10);
103 /* grab the maximum outgoing transfer rate */
104 temp_buffer = strtok (NULL, " ");
105 maximum_outgoing_rate = strtoul (temp_buffer, NULL, 10);
106 }
108 /* close the log file */
109 fclose (fp);
111 /* if we couldn't read enough data, return an unknown error */
112 if (line <= 2)
113 usage4 (_("Unable to process MRTG log file"));
115 /* make sure the MRTG data isn't too old */
116 time (¤t_time);
117 if ((expire_minutes > 0) &&
118 (current_time - timestamp) > (expire_minutes * 60))
119 die (STATE_WARNING, _("MRTG data has expired (%d minutes old)\n"),
120 (int) ((current_time - timestamp) / 60));
122 /* else check the incoming/outgoing rates */
123 if (use_average == TRUE) {
124 incoming_rate = average_incoming_rate;
125 outgoing_rate = average_outgoing_rate;
126 }
127 else {
128 incoming_rate = maximum_incoming_rate;
129 outgoing_rate = maximum_outgoing_rate;
130 }
132 /* report incoming traffic in Bytes/sec */
133 if (incoming_rate < 1024) {
134 strcpy (incoming_speed_rating, "B/s");
135 adjusted_incoming_rate = (double) incoming_rate;
136 }
138 /* report incoming traffic in KBytes/sec */
139 else if (incoming_rate < (1024 * 1024)) {
140 strcpy (incoming_speed_rating, "KB/s");
141 adjusted_incoming_rate = (double) (incoming_rate / 1024.0);
142 }
144 /* report incoming traffic in MBytes/sec */
145 else {
146 strcpy (incoming_speed_rating, "MB/s");
147 adjusted_incoming_rate = (double) (incoming_rate / 1024.0 / 1024.0);
148 }
150 /* report outgoing traffic in Bytes/sec */
151 if (outgoing_rate < 1024) {
152 strcpy (outgoing_speed_rating, "B/s");
153 adjusted_outgoing_rate = (double) outgoing_rate;
154 }
156 /* report outgoing traffic in KBytes/sec */
157 else if (outgoing_rate < (1024 * 1024)) {
158 strcpy (outgoing_speed_rating, "KB/s");
159 adjusted_outgoing_rate = (double) (outgoing_rate / 1024.0);
160 }
162 /* report outgoing traffic in MBytes/sec */
163 else {
164 strcpy (outgoing_speed_rating, "MB/s");
165 adjusted_outgoing_rate = (double) (outgoing_rate / 1024.0 / 1024.0);
166 }
168 if (incoming_rate > incoming_critical_threshold
169 || outgoing_rate > outgoing_critical_threshold) {
170 result = STATE_CRITICAL;
171 }
172 else if (incoming_rate > incoming_warning_threshold
173 || outgoing_rate > outgoing_warning_threshold) {
174 result = STATE_WARNING;
175 }
177 asprintf (&error_message, _("%s. In = %0.1f %s, %s. Out = %0.1f %s|%s %s\n"),
178 (use_average == TRUE) ? _("Avg") : _("Max"), adjusted_incoming_rate,
179 incoming_speed_rating, (use_average == TRUE) ? _("Avg") : _("Max"),
180 adjusted_outgoing_rate, outgoing_speed_rating,
181 fperfdata("in", adjusted_incoming_rate, incoming_speed_rating,
182 (int)incoming_warning_threshold, incoming_warning_threshold,
183 (int)incoming_critical_threshold, incoming_critical_threshold,
184 TRUE, 0, FALSE, 0),
185 fperfdata("in", adjusted_outgoing_rate, outgoing_speed_rating,
186 (int)outgoing_warning_threshold, outgoing_warning_threshold,
187 (int)outgoing_critical_threshold, outgoing_critical_threshold,
188 TRUE, 0, FALSE, 0));
190 printf (_("Traffic %s - %s\n"), state_text(result), error_message);
192 return result;
193 }
197 /* process command-line arguments */
198 int
199 process_arguments (int argc, char **argv)
200 {
201 int c;
203 int option = 0;
204 static struct option longopts[] = {
205 {"logfile", required_argument, 0, 'F'},
206 {"expires", required_argument, 0, 'e'},
207 {"aggregation", required_argument, 0, 'a'},
208 {"variable", required_argument, 0, 'v'},
209 {"critical", required_argument, 0, 'c'},
210 {"warning", required_argument, 0, 'w'},
211 {"verbose", no_argument, 0, 'v'},
212 {"version", no_argument, 0, 'V'},
213 {"help", no_argument, 0, 'h'},
214 {0, 0, 0, 0}
215 };
217 if (argc < 2)
218 return ERROR;
220 for (c = 1; c < argc; c++) {
221 if (strcmp ("-to", argv[c]) == 0)
222 strcpy (argv[c], "-t");
223 else if (strcmp ("-wt", argv[c]) == 0)
224 strcpy (argv[c], "-w");
225 else if (strcmp ("-ct", argv[c]) == 0)
226 strcpy (argv[c], "-c");
227 }
229 while (1) {
230 c = getopt_long (argc, argv, "hVF:e:a:c:w:", longopts, &option);
232 if (c == -1 || c == EOF)
233 break;
235 switch (c) {
236 case 'F': /* input file */
237 log_file = optarg;
238 break;
239 case 'e': /* expiration time */
240 expire_minutes = atoi (optarg);
241 break;
242 case 'a': /* aggregation (AVE or MAX) */
243 if (!strcmp (optarg, "MAX"))
244 use_average = FALSE;
245 else
246 use_average = TRUE;
247 break;
248 case 'c': /* warning threshold */
249 sscanf (optarg, "%lu,%lu", &incoming_critical_threshold,
250 &outgoing_critical_threshold);
251 break;
252 case 'w': /* critical threshold */
253 sscanf (optarg, "%lu,%lu", &incoming_warning_threshold,
254 &outgoing_warning_threshold);
255 break;
256 case 'V': /* version */
257 print_revision (progname, revision);
258 exit (STATE_OK);
259 case 'h': /* help */
260 print_help ();
261 exit (STATE_OK);
262 case '?': /* help */
263 printf (_("%s: Unknown argument: %s\n\n"), progname, optarg);
264 print_usage ();
265 exit (STATE_UNKNOWN);
266 }
267 }
269 c = optind;
270 if (argc > c && log_file == NULL) {
271 log_file = argv[c++];
272 }
274 if (argc > c && expire_minutes == -1) {
275 expire_minutes = atoi (argv[c++]);
276 }
278 if (argc > c && strcmp (argv[c], "MAX") == 0) {
279 use_average = FALSE;
280 c++;
281 }
282 else if (argc > c && strcmp (argv[c], "AVG") == 0) {
283 use_average = TRUE;
284 c++;
285 }
287 if (argc > c && incoming_warning_threshold == 0) {
288 incoming_warning_threshold = strtoul (argv[c++], NULL, 10);
289 }
291 if (argc > c && incoming_critical_threshold == 0) {
292 incoming_critical_threshold = strtoul (argv[c++], NULL, 10);
293 }
295 if (argc > c && outgoing_warning_threshold == 0) {
296 outgoing_warning_threshold = strtoul (argv[c++], NULL, 10);
297 }
299 if (argc > c && outgoing_critical_threshold == 0) {
300 outgoing_critical_threshold = strtoul (argv[c++], NULL, 10);
301 }
303 return validate_arguments ();
304 }
308 int
309 validate_arguments (void)
310 {
311 return OK;
312 }
316 void
317 print_help (void)
318 {
319 print_revision (progname, revision);
321 printf ("Copyright (c) 1999 Ethan Galstad <nagios@nagios.org>\n");
322 printf (COPYRIGHT, copyright, email);
324 printf (_("\n\
325 This plugin will check the incoming/outgoing transfer rates of a router,\n\
326 switch, etc recorded in an MRTG log. If the newest log entry is older\n\
327 than <expire_minutes>, a WARNING status is returned. If either the\n\
328 incoming or outgoing rates exceed the <icl> or <ocl> thresholds (in\n\
329 Bytes/sec), a CRITICAL status results. If either of the rates exceed\n\
330 the <iwl> or <owl> thresholds (in Bytes/sec), a WARNING status results.\n\n"));
332 print_usage ();
334 printf (_(UT_HELP_VRSN));
336 printf (_("\
337 -F, --filename=STRING\n\
338 File to read log from\n\
339 -e, --expires=INTEGER\n\
340 Minutes after which log expires\n\
341 -a, --aggregation=(AVG|MAX)\n\
342 Test average or maximum\n\
343 -w, --warning\n\
344 Warning threshold pair \"<incoming>,<outgoing>\"\n\
345 -c, --critical\n\
346 Critical threshold pair \"<incoming>,<outgoing>\"\n"));
348 printf (_("Notes:\n\
349 - MRTG stands for Multi Router Traffic Grapher. It can be downloaded from\n\
350 http://ee-staff.ethz.ch/~oetiker/webtools/mrtg/mrtg.html\n\
351 - While MRTG can monitor things other than traffic rates, this\n\
352 plugin probably won't work with much else without modification.\n\
353 - The calculated i/o rates are a little off from what MRTG actually\n\
354 reports. I'm not sure why this is right now, but will look into it\n\
355 for future enhancements of this plugin.\n"));
357 printf (_(UT_SUPPORT));
358 }
362 void
363 print_usage (void)
364 {
365 printf ("\
366 Usage: %s -F <log_file> -a <AVG | MAX> -v <variable> -w <warning_pair>\n\
367 -c <critical_pair> [-e expire_minutes] [-t timeout] [-v]\n", progname);
368 }