src/proc_net_ip_vs_stats.c

   1 #include <inttypes.h>
   2 #include <stdio.h>
   3 #include <stdlib.h>
   4
   5 #include "common.h"
   6 #include "config.h"
   7 #include "procfile.h"
   8 #include "rrd.h"
   9 #include "plugin_proc.h"
  10
  11 #define RRD_TYPE_NET_IPVS                       "ipvs"
  12 #define RRD_TYPE_NET_IPVS_LEN           strlen(RRD_TYPE_NET_IPVS)
  13
  14 int do_proc_net_ip_vs_stats(int update_every, unsigned long long dt) {
  15         static int do_bandwidth = -1, do_sockets = -1, do_packets = -1;
  16         static procfile *ff = NULL;
  17
  18         if(do_bandwidth == -1)  do_bandwidth    = config_get_boolean("plugin:proc:/proc/net/ip_vs_stats", "IPVS bandwidth", 1);
  19         if(do_sockets == -1)    do_sockets              = config_get_boolean("plugin:proc:/proc/net/ip_vs_stats", "IPVS connections", 1);
  20         if(do_packets == -1)    do_packets              = config_get_boolean("plugin:proc:/proc/net/ip_vs_stats", "IPVS packets", 1);
  21
  22         if(dt) {};
  23
  24         if(!ff) {
  25                 char filename[FILENAME_MAX + 1];
  26                 snprintf(filename, FILENAME_MAX, "%s%s", global_host_prefix, "/proc/net/ip_vs_stats");
  27                 ff = procfile_open(config_get("plugin:proc:/proc/net/ip_vs_stats", "filename to monitor", filename), " \t,:|", PROCFILE_FLAG_DEFAULT);
  28         }
  29         if(!ff) return 1;
  30
  31         ff = procfile_readall(ff);
  32         if(!ff) return 0; // we return 0, so that we will retry to open it next time
  33
  34         // make sure we have 3 lines
  35         if(procfile_lines(ff) < 3) return 1;
  36
  37         // make sure we have 5 words on the 3rd line
  38         if(procfile_linewords(ff, 2) < 5) return 1;
  39
  40         unsigned long long entries, InPackets, OutPackets, InBytes, OutBytes;
  41
  42         entries         = strtoull(procfile_lineword(ff, 2, 0), NULL, 16);
  43         InPackets       = strtoull(procfile_lineword(ff, 2, 1), NULL, 16);
  44         OutPackets      = strtoull(procfile_lineword(ff, 2, 2), NULL, 16);
  45         InBytes         = strtoull(procfile_lineword(ff, 2, 3), NULL, 16);
  46         OutBytes        = strtoull(procfile_lineword(ff, 2, 4), NULL, 16);
  47
  48         RRDSET *st;
  49
  50         // --------------------------------------------------------------------
  51
  52         if(do_sockets) {
  53                 st = rrdset_find(RRD_TYPE_NET_IPVS ".sockets");
  54                 if(!st) {
  55                         st = rrdset_create(RRD_TYPE_NET_IPVS, "sockets", NULL, RRD_TYPE_NET_IPVS, "IPVS New Connections", "connections/s", 1001, update_every, RRDSET_TYPE_LINE);
  56
  57                         rrddim_add(st, "connections", NULL, 1, 1 * update_every, RRDDIM_INCREMENTAL);
  58                 }
  59                 else rrdset_next(st);
  60
  61                 rrddim_set(st, "connections", entries);
  62                 rrdset_done(st);
  63         }
  64
  65         // --------------------------------------------------------------------
  66
  67         if(do_packets) {
  68                 st = rrdset_find(RRD_TYPE_NET_IPVS ".packets");
  69                 if(!st) {
  70                         st = rrdset_create(RRD_TYPE_NET_IPVS, "packets", NULL, RRD_TYPE_NET_IPVS, "IPVS Packets", "packets/s", 1002, update_every, RRDSET_TYPE_LINE);
  71
  72                         rrddim_add(st, "received", NULL, 1, 1 * update_every, RRDDIM_INCREMENTAL);
  73                         rrddim_add(st, "sent", NULL, -1, 1 * update_every, RRDDIM_INCREMENTAL);
  74                 }
  75                 else rrdset_next(st);
  76
  77                 rrddim_set(st, "received", InPackets);
  78                 rrddim_set(st, "sent", OutPackets);
  79                 rrdset_done(st);
  80         }
  81
  82         // --------------------------------------------------------------------
  83
  84         if(do_bandwidth) {
  85                 st = rrdset_find(RRD_TYPE_NET_IPVS ".net");
  86                 if(!st) {
  87                         st = rrdset_create(RRD_TYPE_NET_IPVS, "net", NULL, RRD_TYPE_NET_IPVS, "IPVS Bandwidth", "kilobits/s", 1000, update_every, RRDSET_TYPE_AREA);
  88
  89                         rrddim_add(st, "received", NULL, 8, 1024 * update_every, RRDDIM_INCREMENTAL);
  90                         rrddim_add(st, "sent", NULL, -8, 1024 * update_every, RRDDIM_INCREMENTAL);
  91                 }
  92                 else rrdset_next(st);
  93
  94                 rrddim_set(st, "received", InBytes);
  95                 rrddim_set(st, "sent", OutBytes);
  96                 rrdset_done(st);
  97         }
  98
  99         return 0;
 100 }