50670c5313f78148402770f5c6cdd749faec2705
1 /**
2 * collectd - src/openvpn.c
3 * Copyright (C) 2008 Doug MacEachern
4 * Copyright (C) 2009,2010 Florian octo Forster
5 * Copyright (C) 2009 Marco Chiappero
6 * Copyright (C) 2009 Fabian Schuh
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; only version 2 of the License is applicable.
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License along
18 * with this program; if not, write to the Free Software Foundation, Inc.,
19 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 *
21 * Authors:
22 * Doug MacEachern <dougm at hyperic.com>
23 * Florian octo Forster <octo at collectd.org>
24 * Marco Chiappero <marco at absence.it>
25 * Fabian Schuh <mail at xeroc.org>
26 **/
28 #include "collectd.h"
30 #include "common.h"
31 #include "plugin.h"
33 #define V1STRING "Common Name,Real Address,Bytes Received,Bytes Sent,Connected Since\n"
34 #define V2STRING "HEADER,CLIENT_LIST,Common Name,Real Address,Virtual Address,Bytes Received,Bytes Sent,Connected Since,Connected Since (time_t)\n"
35 #define V3STRING "HEADER CLIENT_LIST Common Name Real Address Virtual Address Bytes Received Bytes Sent Connected Since Connected Since (time_t)\n"
36 #define V4STRING "HEADER,CLIENT_LIST,Common Name,Real Address,Virtual Address,Bytes Received,Bytes Sent,Connected Since,Connected Since (time_t),Username\n"
37 #define VSSTRING "OpenVPN STATISTICS\n"
40 struct vpn_status_s
41 {
42 char *file;
43 enum
44 {
45 MULTI1 = 1, /* status-version 1 */
46 MULTI2, /* status-version 2 */
47 MULTI3, /* status-version 3 */
48 MULTI4, /* status-version 4 */
49 SINGLE = 10 /* currently no versions for single mode, maybe in the future */
50 } version;
51 char *name;
52 };
53 typedef struct vpn_status_s vpn_status_t;
55 static vpn_status_t **vpn_list = NULL;
56 static int vpn_num = 0;
58 static _Bool new_naming_schema = 0;
59 static _Bool collect_compression = 1;
60 static _Bool collect_user_count = 0;
61 static _Bool collect_individual_users = 1;
63 static const char *config_keys[] =
64 {
65 "StatusFile",
66 "Compression", /* old, deprecated name */
67 "ImprovedNamingSchema",
68 "CollectCompression",
69 "CollectUserCount",
70 "CollectIndividualUsers"
71 };
72 static int config_keys_num = STATIC_ARRAY_SIZE (config_keys);
75 /* Helper function
76 * copy-n-pasted from common.c - changed delim to "," */
77 static int openvpn_strsplit (char *string, char **fields, size_t size)
78 {
79 size_t i;
80 char *ptr;
81 char *saveptr;
83 i = 0;
84 ptr = string;
85 saveptr = NULL;
86 while ((fields[i] = strtok_r (ptr, ",", &saveptr)) != NULL)
87 {
88 ptr = NULL;
89 i++;
91 if (i >= size)
92 break;
93 }
95 return (i);
96 } /* int openvpn_strsplit */
98 /* dispatches number of users */
99 static void numusers_submit (const char *pinst, const char *tinst,
100 gauge_t value)
101 {
102 value_list_t vl = VALUE_LIST_INIT;
104 vl.values = &(value_t) { .gauge = value };
105 vl.values_len = 1;
106 sstrncpy (vl.plugin, "openvpn", sizeof (vl.plugin));
107 sstrncpy (vl.type, "users", sizeof (vl.type));
108 if (pinst != NULL)
109 sstrncpy (vl.plugin_instance, pinst, sizeof (vl.plugin_instance));
110 if (tinst != NULL)
111 sstrncpy (vl.type_instance, tinst, sizeof (vl.type_instance));
113 plugin_dispatch_values (&vl);
114 } /* void numusers_submit */
116 /* dispatches stats about traffic (TCP or UDP) generated by the tunnel
117 * per single endpoint */
118 static void iostats_submit (const char *pinst, const char *tinst,
119 derive_t rx, derive_t tx)
120 {
121 value_list_t vl = VALUE_LIST_INIT;
122 value_t values[] = {
123 { .derive = rx },
124 { .derive = tx },
125 };
127 /* NOTE ON THE NEW NAMING SCHEMA:
128 * using plugin_instance to identify each vpn config (and
129 * status) file; using type_instance to identify the endpoint
130 * host when in multimode, traffic or overhead when in single.
131 */
133 vl.values = values;
134 vl.values_len = STATIC_ARRAY_SIZE (values);
135 sstrncpy (vl.plugin, "openvpn", sizeof (vl.plugin));
136 if (pinst != NULL)
137 sstrncpy (vl.plugin_instance, pinst,
138 sizeof (vl.plugin_instance));
139 sstrncpy (vl.type, "if_octets", sizeof (vl.type));
140 if (tinst != NULL)
141 sstrncpy (vl.type_instance, tinst, sizeof (vl.type_instance));
143 plugin_dispatch_values (&vl);
144 } /* void traffic_submit */
146 /* dispatches stats about data compression shown when in single mode */
147 static void compression_submit (const char *pinst, const char *tinst,
148 derive_t uncompressed, derive_t compressed)
149 {
150 value_list_t vl = VALUE_LIST_INIT;
151 value_t values[] = {
152 { .derive = uncompressed },
153 { .derive = compressed },
154 };
156 vl.values = values;
157 vl.values_len = STATIC_ARRAY_SIZE (values);
158 sstrncpy (vl.plugin, "openvpn", sizeof (vl.plugin));
159 if (pinst != NULL)
160 sstrncpy (vl.plugin_instance, pinst,
161 sizeof (vl.plugin_instance));
162 sstrncpy (vl.type, "compression", sizeof (vl.type));
163 if (tinst != NULL)
164 sstrncpy (vl.type_instance, tinst, sizeof (vl.type_instance));
166 plugin_dispatch_values (&vl);
167 } /* void compression_submit */
169 static int single_read (const char *name, FILE *fh)
170 {
171 char buffer[1024];
172 char *fields[4];
173 const int max_fields = STATIC_ARRAY_SIZE (fields);
174 int fields_num, read = 0;
176 derive_t link_rx, link_tx;
177 derive_t tun_rx, tun_tx;
178 derive_t pre_compress, post_compress;
179 derive_t pre_decompress, post_decompress;
180 derive_t overhead_rx, overhead_tx;
182 link_rx = 0;
183 link_tx = 0;
184 tun_rx = 0;
185 tun_tx = 0;
186 pre_compress = 0;
187 post_compress = 0;
188 pre_decompress = 0;
189 post_decompress = 0;
191 while (fgets (buffer, sizeof (buffer), fh) != NULL)
192 {
193 fields_num = openvpn_strsplit (buffer, fields, max_fields);
195 /* status file is generated by openvpn/sig.c:print_status()
196 * http://svn.openvpn.net/projects/openvpn/trunk/openvpn/sig.c
197 *
198 * The line we're expecting has 2 fields. We ignore all lines
199 * with more or less fields.
200 */
201 if (fields_num != 2)
202 {
203 continue;
204 }
206 if (strcmp (fields[0], "TUN/TAP read bytes") == 0)
207 {
208 /* read from the system and sent over the tunnel */
209 tun_tx = atoll (fields[1]);
210 }
211 else if (strcmp (fields[0], "TUN/TAP write bytes") == 0)
212 {
213 /* read from the tunnel and written in the system */
214 tun_rx = atoll (fields[1]);
215 }
216 else if (strcmp (fields[0], "TCP/UDP read bytes") == 0)
217 {
218 link_rx = atoll (fields[1]);
219 }
220 else if (strcmp (fields[0], "TCP/UDP write bytes") == 0)
221 {
222 link_tx = atoll (fields[1]);
223 }
224 else if (strcmp (fields[0], "pre-compress bytes") == 0)
225 {
226 pre_compress = atoll (fields[1]);
227 }
228 else if (strcmp (fields[0], "post-compress bytes") == 0)
229 {
230 post_compress = atoll (fields[1]);
231 }
232 else if (strcmp (fields[0], "pre-decompress bytes") == 0)
233 {
234 pre_decompress = atoll (fields[1]);
235 }
236 else if (strcmp (fields[0], "post-decompress bytes") == 0)
237 {
238 post_decompress = atoll (fields[1]);
239 }
240 }
242 iostats_submit (name, "traffic", link_rx, link_tx);
244 /* we need to force this order to avoid negative values with these unsigned */
245 overhead_rx = (((link_rx - pre_decompress) + post_decompress) - tun_rx);
246 overhead_tx = (((link_tx - post_compress) + pre_compress) - tun_tx);
248 iostats_submit (name, "overhead", overhead_rx, overhead_tx);
250 if (collect_compression)
251 {
252 compression_submit (name, "data_in", post_decompress, pre_decompress);
253 compression_submit (name, "data_out", pre_compress, post_compress);
254 }
256 read = 1;
258 return (read);
259 } /* int single_read */
261 /* for reading status version 1 */
262 static int multi1_read (const char *name, FILE *fh)
263 {
264 char buffer[1024];
265 char *fields[10];
266 int fields_num, found_header = 0;
267 long long sum_users = 0;
269 /* read the file until the "ROUTING TABLE" line is found (no more info after) */
270 while (fgets (buffer, sizeof (buffer), fh) != NULL)
271 {
272 if (strcmp (buffer, "ROUTING TABLE\n") == 0)
273 break;
275 if (strcmp (buffer, V1STRING) == 0)
276 {
277 found_header = 1;
278 continue;
279 }
281 /* skip the first lines until the client list section is found */
282 if (found_header == 0)
283 /* we can't start reading data until this string is found */
284 continue;
286 fields_num = openvpn_strsplit (buffer,
287 fields, STATIC_ARRAY_SIZE (fields));
288 if (fields_num < 4)
289 continue;
291 if (collect_user_count)
292 /* If so, sum all users, ignore the individuals*/
293 {
294 sum_users += 1;
295 }
296 if (collect_individual_users)
297 {
298 if (new_naming_schema)
299 {
300 iostats_submit (name, /* vpn instance */
301 fields[0], /* "Common Name" */
302 atoll (fields[2]), /* "Bytes Received" */
303 atoll (fields[3])); /* "Bytes Sent" */
304 }
305 else
306 {
307 iostats_submit (fields[0], /* "Common Name" */
308 NULL, /* unused when in multimode */
309 atoll (fields[2]), /* "Bytes Received" */
310 atoll (fields[3])); /* "Bytes Sent" */
311 }
312 }
313 }
315 if (ferror (fh))
316 return (0);
318 if (collect_user_count)
319 numusers_submit(name, name, sum_users);
321 return (1);
322 } /* int multi1_read */
324 /* for reading status version 2 */
325 static int multi2_read (const char *name, FILE *fh)
326 {
327 char buffer[1024];
328 char *fields[10];
329 const int max_fields = STATIC_ARRAY_SIZE (fields);
330 int fields_num, read = 0;
331 long long sum_users = 0;
333 while (fgets (buffer, sizeof (buffer), fh) != NULL)
334 {
335 fields_num = openvpn_strsplit (buffer, fields, max_fields);
337 /* status file is generated by openvpn/multi.c:multi_print_status()
338 * http://svn.openvpn.net/projects/openvpn/trunk/openvpn/multi.c
339 *
340 * The line we're expecting has 8 fields. We ignore all lines
341 * with more or less fields.
342 */
343 if (fields_num != 8)
344 continue;
346 if (strcmp (fields[0], "CLIENT_LIST") != 0)
347 continue;
349 if (collect_user_count)
350 /* If so, sum all users, ignore the individuals*/
351 {
352 sum_users += 1;
353 }
354 if (collect_individual_users)
355 {
356 if (new_naming_schema)
357 {
358 /* plugin inst = file name, type inst = fields[1] */
359 iostats_submit (name, /* vpn instance */
360 fields[1], /* "Common Name" */
361 atoll (fields[4]), /* "Bytes Received" */
362 atoll (fields[5])); /* "Bytes Sent" */
363 }
364 else
365 {
366 /* plugin inst = fields[1], type inst = "" */
367 iostats_submit (fields[1], /* "Common Name" */
368 NULL, /* unused when in multimode */
369 atoll (fields[4]), /* "Bytes Received" */
370 atoll (fields[5])); /* "Bytes Sent" */
371 }
372 }
374 read = 1;
375 }
377 if (collect_user_count)
378 {
379 numusers_submit(name, name, sum_users);
380 read = 1;
381 }
383 return (read);
384 } /* int multi2_read */
386 /* for reading status version 3 */
387 static int multi3_read (const char *name, FILE *fh)
388 {
389 char buffer[1024];
390 char *fields[15];
391 const int max_fields = STATIC_ARRAY_SIZE (fields);
392 int fields_num, read = 0;
393 long long sum_users = 0;
395 while (fgets (buffer, sizeof (buffer), fh) != NULL)
396 {
397 fields_num = strsplit (buffer, fields, max_fields);
399 /* status file is generated by openvpn/multi.c:multi_print_status()
400 * http://svn.openvpn.net/projects/openvpn/trunk/openvpn/multi.c
401 *
402 * The line we're expecting has 12 fields. We ignore all lines
403 * with more or less fields.
404 */
405 if (fields_num != 12)
406 {
407 continue;
408 }
409 else
410 {
411 if (strcmp (fields[0], "CLIENT_LIST") != 0)
412 continue;
414 if (collect_user_count)
415 /* If so, sum all users, ignore the individuals*/
416 {
417 sum_users += 1;
418 }
420 if (collect_individual_users)
421 {
422 if (new_naming_schema)
423 {
424 iostats_submit (name, /* vpn instance */
425 fields[1], /* "Common Name" */
426 atoll (fields[4]), /* "Bytes Received" */
427 atoll (fields[5])); /* "Bytes Sent" */
428 }
429 else
430 {
431 iostats_submit (fields[1], /* "Common Name" */
432 NULL, /* unused when in multimode */
433 atoll (fields[4]), /* "Bytes Received" */
434 atoll (fields[5])); /* "Bytes Sent" */
435 }
436 }
438 read = 1;
439 }
440 }
442 if (collect_user_count)
443 {
444 numusers_submit(name, name, sum_users);
445 read = 1;
446 }
448 return (read);
449 } /* int multi3_read */
451 /* for reading status version 4 */
452 static int multi4_read (const char *name, FILE *fh)
453 {
454 char buffer[1024];
455 char *fields[11];
456 const int max_fields = STATIC_ARRAY_SIZE (fields);
457 int fields_num, read = 0;
458 long long sum_users = 0;
460 while (fgets (buffer, sizeof (buffer), fh) != NULL)
461 {
462 fields_num = openvpn_strsplit (buffer, fields, max_fields);
464 /* status file is generated by openvpn/multi.c:multi_print_status()
465 * http://svn.openvpn.net/projects/openvpn/trunk/openvpn/multi.c
466 *
467 * The line we're expecting has 9 fields. We ignore all lines
468 * with more or less fields.
469 */
470 if (fields_num != 9)
471 continue;
474 if (strcmp (fields[0], "CLIENT_LIST") != 0)
475 continue;
478 if (collect_user_count)
479 /* If so, sum all users, ignore the individuals*/
480 {
481 sum_users += 1;
482 }
483 if (collect_individual_users)
484 {
485 if (new_naming_schema)
486 {
487 /* plugin inst = file name, type inst = fields[1] */
488 iostats_submit (name, /* vpn instance */
489 fields[1], /* "Common Name" */
490 atoll (fields[4]), /* "Bytes Received" */
491 atoll (fields[5])); /* "Bytes Sent" */
492 }
493 else
494 {
495 /* plugin inst = fields[1], type inst = "" */
496 iostats_submit (fields[1], /* "Common Name" */
497 NULL, /* unused when in multimode */
498 atoll (fields[4]), /* "Bytes Received" */
499 atoll (fields[5])); /* "Bytes Sent" */
500 }
501 }
503 read = 1;
504 }
506 if (collect_user_count)
507 {
508 numusers_submit(name, name, sum_users);
509 read = 1;
510 }
512 return (read);
513 } /* int multi4_read */
515 /* read callback */
516 static int openvpn_read (void)
517 {
518 FILE *fh;
519 int read;
521 read = 0;
523 if (vpn_num == 0)
524 return (0);
526 /* call the right read function for every status entry in the list */
527 for (int i = 0; i < vpn_num; i++)
528 {
529 int vpn_read = 0;
531 fh = fopen (vpn_list[i]->file, "r");
532 if (fh == NULL)
533 {
534 char errbuf[1024];
535 WARNING ("openvpn plugin: fopen(%s) failed: %s", vpn_list[i]->file,
536 sstrerror (errno, errbuf, sizeof (errbuf)));
538 continue;
539 }
541 switch (vpn_list[i]->version)
542 {
543 case SINGLE:
544 vpn_read = single_read(vpn_list[i]->name, fh);
545 break;
547 case MULTI1:
548 vpn_read = multi1_read(vpn_list[i]->name, fh);
549 break;
551 case MULTI2:
552 vpn_read = multi2_read(vpn_list[i]->name, fh);
553 break;
555 case MULTI3:
556 vpn_read = multi3_read(vpn_list[i]->name, fh);
557 break;
559 case MULTI4:
560 vpn_read = multi4_read(vpn_list[i]->name, fh);
561 break;
562 }
564 fclose (fh);
565 read += vpn_read;
566 }
568 return (read ? 0 : -1);
569 } /* int openvpn_read */
571 static int version_detect (const char *filename)
572 {
573 FILE *fh;
574 char buffer[1024];
575 int version = 0;
577 /* Sanity checking. We're called from the config handling routine, so
578 * better play it save. */
579 if ((filename == NULL) || (*filename == 0))
580 return (0);
582 fh = fopen (filename, "r");
583 if (fh == NULL)
584 {
585 char errbuf[1024];
586 WARNING ("openvpn plugin: Unable to read \"%s\": %s", filename,
587 sstrerror (errno, errbuf, sizeof (errbuf)));
588 return (0);
589 }
591 /* now search for the specific multimode data format */
592 while ((fgets (buffer, sizeof (buffer), fh)) != NULL)
593 {
594 /* we look at the first line searching for SINGLE mode configuration */
595 if (strcmp (buffer, VSSTRING) == 0)
596 {
597 DEBUG ("openvpn plugin: found status file version SINGLE");
598 version = SINGLE;
599 break;
600 }
601 /* searching for multi version 1 */
602 else if (strcmp (buffer, V1STRING) == 0)
603 {
604 DEBUG ("openvpn plugin: found status file version MULTI1");
605 version = MULTI1;
606 break;
607 }
608 /* searching for multi version 2 */
609 else if (strcmp (buffer, V2STRING) == 0)
610 {
611 DEBUG ("openvpn plugin: found status file version MULTI2");
612 version = MULTI2;
613 break;
614 }
615 /* searching for multi version 3 */
616 else if (strcmp (buffer, V3STRING) == 0)
617 {
618 DEBUG ("openvpn plugin: found status file version MULTI3");
619 version = MULTI3;
620 break;
621 }
622 /* searching for multi version 4 */
623 else if (strcmp (buffer, V4STRING) == 0)
624 {
625 DEBUG ("openvpn plugin: found status file version MULTI4");
626 version = MULTI4;
627 break;
628 }
629 }
631 if (version == 0)
632 {
633 /* This is only reached during configuration, so complaining to
634 * the user is in order. */
635 NOTICE ("openvpn plugin: %s: Unknown file format, please "
636 "report this as bug. Make sure to include "
637 "your status file, so the plugin can "
638 "be adapted.", filename);
639 }
641 fclose (fh);
643 return version;
644 } /* int version_detect */
646 static int openvpn_config (const char *key, const char *value)
647 {
648 if (strcasecmp ("StatusFile", key) == 0)
649 {
650 char *status_file, *status_name, *filename;
651 int status_version;
652 vpn_status_t *temp;
654 /* try to detect the status file format */
655 status_version = version_detect (value);
657 if (status_version == 0)
658 {
659 WARNING ("openvpn plugin: unable to detect status version, "
660 "discarding status file \"%s\".", value);
661 return (1);
662 }
664 status_file = sstrdup (value);
665 if (status_file == NULL)
666 {
667 char errbuf[1024];
668 WARNING ("openvpn plugin: sstrdup failed: %s",
669 sstrerror (errno, errbuf, sizeof (errbuf)));
670 return (1);
671 }
673 /* it determines the file name as string starting at location filename + 1 */
674 filename = strrchr (status_file, (int) '/');
675 if (filename == NULL)
676 {
677 /* status_file is already the file name only */
678 status_name = status_file;
679 }
680 else
681 {
682 /* doesn't waste memory, uses status_file starting at filename + 1 */
683 status_name = filename + 1;
684 }
686 /* scan the list looking for a clone */
687 for (int i = 0; i < vpn_num; i++)
688 {
689 if (strcasecmp (vpn_list[i]->name, status_name) == 0)
690 {
691 WARNING ("openvpn plugin: status filename \"%s\" "
692 "already used, please choose a "
693 "different one.", status_name);
694 sfree (status_file);
695 return (1);
696 }
697 }
699 /* create a new vpn element since file, version and name are ok */
700 temp = malloc (sizeof (*temp));
701 if (temp == NULL)
702 {
703 char errbuf[1024];
704 ERROR ("openvpn plugin: malloc failed: %s",
705 sstrerror (errno, errbuf, sizeof (errbuf)));
706 sfree (status_file);
707 return (1);
708 }
709 temp->file = status_file;
710 temp->version = status_version;
711 temp->name = status_name;
713 vpn_status_t **tmp_list = realloc (vpn_list, (vpn_num + 1) * sizeof (*vpn_list));
714 if (tmp_list == NULL)
715 {
716 char errbuf[1024];
717 ERROR ("openvpn plugin: realloc failed: %s",
718 sstrerror (errno, errbuf, sizeof (errbuf)));
720 sfree (vpn_list);
721 sfree (temp->file);
722 sfree (temp);
723 return (1);
724 }
725 vpn_list = tmp_list;
727 vpn_list[vpn_num] = temp;
728 vpn_num++;
730 DEBUG ("openvpn plugin: status file \"%s\" added", temp->file);
732 } /* if (strcasecmp ("StatusFile", key) == 0) */
733 else if ((strcasecmp ("CollectCompression", key) == 0)
734 || (strcasecmp ("Compression", key) == 0)) /* old, deprecated name */
735 {
736 if (IS_FALSE (value))
737 collect_compression = 0;
738 else
739 collect_compression = 1;
740 } /* if (strcasecmp ("CollectCompression", key) == 0) */
741 else if (strcasecmp ("ImprovedNamingSchema", key) == 0)
742 {
743 if (IS_TRUE (value))
744 {
745 DEBUG ("openvpn plugin: using the new naming schema");
746 new_naming_schema = 1;
747 }
748 else
749 {
750 new_naming_schema = 0;
751 }
752 } /* if (strcasecmp ("ImprovedNamingSchema", key) == 0) */
753 else if (strcasecmp("CollectUserCount", key) == 0)
754 {
755 if (IS_TRUE(value))
756 collect_user_count = 1;
757 else
758 collect_user_count = 0;
759 } /* if (strcasecmp("CollectUserCount", key) == 0) */
760 else if (strcasecmp("CollectIndividualUsers", key) == 0)
761 {
762 if (IS_FALSE (value))
763 collect_individual_users = 0;
764 else
765 collect_individual_users = 1;
766 } /* if (strcasecmp("CollectIndividualUsers", key) == 0) */
767 else
768 {
769 return (-1);
770 }
772 return (0);
773 } /* int openvpn_config */
775 /* shutdown callback */
776 static int openvpn_shutdown (void)
777 {
778 for (int i = 0; i < vpn_num; i++)
779 {
780 sfree (vpn_list[i]->file);
781 sfree (vpn_list[i]);
782 }
784 sfree (vpn_list);
786 return (0);
787 } /* int openvpn_shutdown */
789 static int openvpn_init (void)
790 {
791 if (!collect_individual_users
792 && !collect_compression
793 && !collect_user_count)
794 {
795 WARNING ("OpenVPN plugin: Neither `CollectIndividualUsers', "
796 "`CollectCompression', nor `CollectUserCount' is true. There's no "
797 "data left to collect.");
798 return (-1);
799 }
801 plugin_register_read ("openvpn", openvpn_read);
802 plugin_register_shutdown ("openvpn", openvpn_shutdown);
804 return (0);
805 } /* int openvpn_init */
807 void module_register (void)
808 {
809 plugin_register_config ("openvpn", openvpn_config,
810 config_keys, config_keys_num);
811 plugin_register_init ("openvpn", openvpn_init);
812 } /* void module_register */
814 /* vim: set sw=2 ts=2 : */