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 "logging.h"
  25. #include "plugins.h"
  26. #include "probe.h"
  27. #define BUFSIZE 1024
  28. struct sammler_plugin plugin;
  29. static char *buffer;
  30. static const char *ds_def = {
  31. "DS:entries:GAUGE:15:0:U "
  32. "DS:searched:DERIVE:15:0:U "
  33. "DS:found:DERIVE:15:0:U "
  34. "DS:new:DERIVE:15:0:U "
  35. "DS:invalid:DERIVE:15:0:U "
  36. "DS:ignore:DERIVE:15:0:U "
  37. "DS:delete:DERIVE:15:0:U "
  38. "DS:delete_list:DERIVE:15:0:U "
  39. "DS:insert:DERIVE:15:0:U "
  40. "DS:insert_failed:DERIVE:15:0:U "
  41. "DS:drop:DERIVE:15:0:U "
  42. "DS:early_drop:DERIVE:15:0:U "
  43. "DS:icmp_error:DERIVE:15:0:U "
  44. "DS:expect_new:DERIVE:15:0:U "
  45. "DS:expect_create:DERIVE:15:0:U "
  46. "DS:expect_delete:DERIVE:15:0:U "
  47. };
  48. static const char * get_ds(int ds_id)
  49. {
  50. return ds_def;
  51. }
  52. static int probe(void)
  53. {
  54. FILE *fp;
  55. char *val[16], filename[16];
  56. unsigned long long arr[16];
  57. int i, len, cpu = 0;
  58. fp = fopen("/proc/net/stat/ip_conntrack", "r");
  59. if (fp == NULL) {
  60. log_print(LOG_WARN, "plugin ctstat");
  61. return -1;
  62. }
  63. while (fgets(buffer, BUFSIZE, fp) != NULL) {
  64. if (!strncmp(buffer, "entries", 7))
  65. continue;
  66. if (strsplit(buffer, " \t\n", val, 16) != 16)
  67. continue;
  68. for (i = 0; i < 16; i++)
  69. arr[i] = strtoll(val[i], NULL, 16);
  70. len = snprintf(filename, sizeof(filename), "ctstat-%d.rrd", cpu);
  71. if (len < 0 || len >= sizeof(filename))
  72. continue;
  73. probe_submit(&plugin, filename, 0,
  74. "%llu:%llu:%llu:%llu:%llu:%llu:%llu:%llu:%llu:%llu:%llu:%llu:%llu:%llu:%llu:%llu",
  75. arr[0], arr[1], arr[2], arr[3],
  76. arr[4], arr[5], arr[6], arr[7],
  77. arr[8], arr[9], arr[10], arr[11],
  78. arr[12], arr[13], arr[14], arr[15]);
  79. cpu++;
  80. }
  81. fclose(fp);
  82. return 0;
  83. }
  84. static int init(void)
  85. {
  86. buffer = malloc(BUFSIZE);
  87. return (buffer == NULL) ? -1 : 0;
  88. }
  89. static int fini(void)
  90. {
  91. free(buffer);
  92. return 0;
  93. }
  94. struct sammler_plugin plugin = {
  95. .name = "ctstat",
  96. .interval = 10,
  97. .init = &init,
  98. .fini = &fini,
  99. .probe = &probe,
  100. .get_ds = &get_ds,
  101. };