rrd based system stats
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  1. /***************************************************************************
  2. * Copyright (C) 06/2006 by Olaf Rempel *
  3. * razzor@kopf-tisch.de *
  4. * *
  5. * This program is free software; you can redistribute it and/or modify *
  6. * it under the terms of the GNU General Public License as published by *
  7. * the Free Software Foundation; either version 2 of the License, or *
  8. * (at your option) any later version. *
  9. * *
  10. * This program is distributed in the hope that it will be useful, *
  11. * but WITHOUT ANY WARRANTY; without even the implied warranty of *
  12. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
  13. * GNU General Public License for more details. *
  14. * *
  15. * You should have received a copy of the GNU General Public License *
  16. * along with this program; if not, write to the *
  17. * Free Software Foundation, Inc., *
  18. * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
  19. ***************************************************************************/
  20. #include <stdio.h>
  21. #include <stdlib.h>
  22. #include <string.h>
  23. #include "helper.h"
  24. #include "plugins.h"
  25. #include "probe.h"
  26. struct sammler_plugin plugin;
  27. static const char *ds_def = {
  28. "DS:byte_in:COUNTER:15:0:U "
  29. "DS:byte_out:COUNTER:15:0:U "
  30. "DS:pkt_in:COUNTER:15:0:U "
  31. "DS:pkt_out:COUNTER:15:0:U "
  32. };
  33. static const char * get_ds(int ds_id)
  34. {
  35. return ds_def;
  36. }
  37. static int probe(void)
  38. {
  39. FILE *fp;
  40. char *stats, *device;
  41. char *val[16], filename[32];
  42. int len;
  43. fp = fopen("/proc/net/dev", "r");
  44. if (fp == NULL) {
  45. log_print(LOG_WARN, "plugin netdev");
  46. return -1;
  47. }
  48. while (fgets(plugin.buffer, plugin.bufsize, fp) != NULL) {
  49. if (!(stats = strchr(plugin.buffer, ':')))
  50. continue;
  51. *stats++ = '\0';
  52. device = plugin.buffer;
  53. while (*device == ' ')
  54. device++;
  55. if (*device == '\0')
  56. continue;
  57. if (strsplit(stats, " \t\n", val, 16) != 16)
  58. continue;
  59. len = snprintf(filename, sizeof(filename), "net-%s.rrd", device);
  60. if (len < 0 || len >= sizeof(filename))
  61. continue;
  62. probe_submit(&plugin, filename, 0, "%s:%s:%s:%s",
  63. val[0], val[8], val[1], val[9]);
  64. }
  65. fclose(fp);
  66. return 0;
  67. }
  68. struct sammler_plugin plugin = {
  69. .name = "netdev",
  70. .interval = 10,
  71. .bufsize = 1024,
  72. .probe = &probe,
  73. .get_ds = &get_ds,
  74. };