src/proc_net_netstat.c

   1 #include "common.h"
   2
   3 int do_proc_net_netstat(int update_every, unsigned long long dt) {
   4         static int do_bandwidth = -1, do_inerrors = -1, do_mcast = -1, do_bcast = -1, do_mcast_p = -1, do_bcast_p = -1;
   5         static procfile *ff = NULL;
   6
   7         if(do_bandwidth == -1)  do_bandwidth    = config_get_boolean_ondemand("plugin:proc:/proc/net/netstat", "bandwidth", CONFIG_ONDEMAND_ONDEMAND);
   8         if(do_inerrors == -1)   do_inerrors             = config_get_boolean_ondemand("plugin:proc:/proc/net/netstat", "input errors", CONFIG_ONDEMAND_ONDEMAND);
   9         if(do_mcast == -1)              do_mcast                = config_get_boolean_ondemand("plugin:proc:/proc/net/netstat", "multicast bandwidth", CONFIG_ONDEMAND_ONDEMAND);
  10         if(do_bcast == -1)              do_bcast                = config_get_boolean_ondemand("plugin:proc:/proc/net/netstat", "broadcast bandwidth", CONFIG_ONDEMAND_ONDEMAND);
  11         if(do_mcast_p == -1)    do_mcast_p              = config_get_boolean_ondemand("plugin:proc:/proc/net/netstat", "multicast packets", CONFIG_ONDEMAND_ONDEMAND);
  12         if(do_bcast_p == -1)    do_bcast_p              = config_get_boolean_ondemand("plugin:proc:/proc/net/netstat", "broadcast packets", CONFIG_ONDEMAND_ONDEMAND);
  13
  14         if(dt) {};
  15
  16         if(!ff) {
  17                 char filename[FILENAME_MAX + 1];
  18                 snprintfz(filename, FILENAME_MAX, "%s%s", global_host_prefix, "/proc/net/netstat");
  19                 ff = procfile_open(config_get("plugin:proc:/proc/net/netstat", "filename to monitor", filename), " \t:", PROCFILE_FLAG_DEFAULT);
  20         }
  21         if(!ff) return 1;
  22
  23         ff = procfile_readall(ff);
  24         if(!ff) return 0; // we return 0, so that we will retry to open it next time
  25
  26         uint32_t lines = procfile_lines(ff), l;
  27         uint32_t words;
  28
  29         for(l = 0; l < lines ;l++) {
  30                 if(strcmp(procfile_lineword(ff, l, 0), "IpExt") == 0) {
  31                         l++; // we need the next line
  32
  33                         if(strcmp(procfile_lineword(ff, l, 0), "IpExt") != 0) {
  34                                 error("Cannot read IpExt line from /proc/net/netstat.");
  35                                 break;
  36                         }
  37                         words = procfile_linewords(ff, l);
  38                         if(words < 12) {
  39                                 error("Cannot read /proc/net/netstat IpExt line. Expected 12 params, read %u.", words);
  40                                 continue;
  41                         }
  42
  43                         unsigned long long
  44                                 InNoRoutes = 0, InTruncatedPkts = 0,
  45                                 InOctets = 0,  InMcastPkts = 0,  InBcastPkts = 0,  InMcastOctets = 0,  InBcastOctets = 0,
  46                                 OutOctets = 0, OutMcastPkts = 0, OutBcastPkts = 0, OutMcastOctets = 0, OutBcastOctets = 0;
  47
  48                         InNoRoutes                      = strtoull(procfile_lineword(ff, l, 1), NULL, 10);
  49                         InTruncatedPkts         = strtoull(procfile_lineword(ff, l, 2), NULL, 10);
  50                         InMcastPkts             = strtoull(procfile_lineword(ff, l, 3), NULL, 10);
  51                         OutMcastPkts            = strtoull(procfile_lineword(ff, l, 4), NULL, 10);
  52                         InBcastPkts             = strtoull(procfile_lineword(ff, l, 5), NULL, 10);
  53                         OutBcastPkts            = strtoull(procfile_lineword(ff, l, 6), NULL, 10);
  54                         InOctets                        = strtoull(procfile_lineword(ff, l, 7), NULL, 10);
  55                         OutOctets                       = strtoull(procfile_lineword(ff, l, 8), NULL, 10);
  56                         InMcastOctets           = strtoull(procfile_lineword(ff, l, 9), NULL, 10);
  57                         OutMcastOctets          = strtoull(procfile_lineword(ff, l, 10), NULL, 10);
  58                         InBcastOctets           = strtoull(procfile_lineword(ff, l, 11), NULL, 10);
  59                         OutBcastOctets          = strtoull(procfile_lineword(ff, l, 12), NULL, 10);
  60
  61                         RRDSET *st;
  62
  63                         // --------------------------------------------------------------------
  64
  65                         if(do_bandwidth == CONFIG_ONDEMAND_YES || (do_bandwidth == CONFIG_ONDEMAND_ONDEMAND && (InOctets || OutOctets))) {
  66                                 do_bandwidth = CONFIG_ONDEMAND_YES;
  67                                 st = rrdset_find("system.ipv4");
  68                                 if(!st) {
  69                                         st = rrdset_create("system", "ipv4", NULL, "network", NULL, "IPv4 Bandwidth", "kilobits/s", 500, update_every, RRDSET_TYPE_AREA);
  70
  71                                         rrddim_add(st, "received", NULL, 8, 1024, RRDDIM_INCREMENTAL);
  72                                         rrddim_add(st, "sent", NULL, -8, 1024, RRDDIM_INCREMENTAL);
  73                                 }
  74                                 else rrdset_next(st);
  75
  76                                 rrddim_set(st, "sent", OutOctets);
  77                                 rrddim_set(st, "received", InOctets);
  78                                 rrdset_done(st);
  79                         }
  80
  81                         // --------------------------------------------------------------------
  82
  83                         if(do_inerrors == CONFIG_ONDEMAND_YES || (do_inerrors == CONFIG_ONDEMAND_ONDEMAND && (InNoRoutes || InTruncatedPkts))) {
  84                                 do_inerrors = CONFIG_ONDEMAND_YES;
  85                                 st = rrdset_find("ipv4.inerrors");
  86                                 if(!st) {
  87                                         st = rrdset_create("ipv4", "inerrors", NULL, "errors", NULL, "IPv4 Input Errors", "packets/s", 4000, update_every, RRDSET_TYPE_LINE);
  88                                         st->isdetail = 1;
  89
  90                                         rrddim_add(st, "noroutes", NULL, 1, 1, RRDDIM_INCREMENTAL);
  91                                         rrddim_add(st, "truncated", NULL, 1, 1, RRDDIM_INCREMENTAL);
  92                                 }
  93                                 else rrdset_next(st);
  94
  95                                 rrddim_set(st, "noroutes", InNoRoutes);
  96                                 rrddim_set(st, "truncated", InTruncatedPkts);
  97                                 rrdset_done(st);
  98                         }
  99
 100                         // --------------------------------------------------------------------
 101
 102                         if(do_mcast == CONFIG_ONDEMAND_YES || (do_mcast == CONFIG_ONDEMAND_ONDEMAND && (InMcastOctets || OutMcastOctets))) {
 103                                 do_mcast = CONFIG_ONDEMAND_YES;
 104                                 st = rrdset_find("ipv4.mcast");
 105                                 if(!st) {
 106                                         st = rrdset_create("ipv4", "mcast", NULL, "multicast", NULL, "IPv4 Multicast Bandwidth", "kilobits/s", 9000, update_every, RRDSET_TYPE_AREA);
 107                                         st->isdetail = 1;
 108
 109                                         rrddim_add(st, "received", NULL, 8, 1024, RRDDIM_INCREMENTAL);
 110                                         rrddim_add(st, "sent", NULL, -8, 1024, RRDDIM_INCREMENTAL);
 111                                 }
 112                                 else rrdset_next(st);
 113
 114                                 rrddim_set(st, "sent", OutMcastOctets);
 115                                 rrddim_set(st, "received", InMcastOctets);
 116                                 rrdset_done(st);
 117                         }
 118
 119                         // --------------------------------------------------------------------
 120
 121                         if(do_bcast == CONFIG_ONDEMAND_YES || (do_bcast == CONFIG_ONDEMAND_ONDEMAND && (InBcastOctets || OutBcastOctets))) {
 122                                 do_bcast = CONFIG_ONDEMAND_YES;
 123                                 st = rrdset_find("ipv4.bcast");
 124                                 if(!st) {
 125                                         st = rrdset_create("ipv4", "bcast", NULL, "broadcast", NULL, "IPv4 Broadcast Bandwidth", "kilobits/s", 8000, update_every, RRDSET_TYPE_AREA);
 126                                         st->isdetail = 1;
 127
 128                                         rrddim_add(st, "received", NULL, 8, 1024, RRDDIM_INCREMENTAL);
 129                                         rrddim_add(st, "sent", NULL, -8, 1024, RRDDIM_INCREMENTAL);
 130                                 }
 131                                 else rrdset_next(st);
 132
 133                                 rrddim_set(st, "sent", OutBcastOctets);
 134                                 rrddim_set(st, "received", InBcastOctets);
 135                                 rrdset_done(st);
 136                         }
 137
 138                         // --------------------------------------------------------------------
 139
 140                         if(do_mcast_p == CONFIG_ONDEMAND_YES || (do_mcast_p == CONFIG_ONDEMAND_ONDEMAND && (InMcastPkts || OutMcastPkts))) {
 141                                 do_mcast_p = CONFIG_ONDEMAND_YES;
 142                                 st = rrdset_find("ipv4.mcastpkts");
 143                                 if(!st) {
 144                                         st = rrdset_create("ipv4", "mcastpkts", NULL, "multicast", NULL, "IPv4 Multicast Packets", "packets/s", 9500, update_every, RRDSET_TYPE_LINE);
 145                                         st->isdetail = 1;
 146
 147                                         rrddim_add(st, "received", NULL, 1, 1, RRDDIM_INCREMENTAL);
 148                                         rrddim_add(st, "sent", NULL, -1, 1, RRDDIM_INCREMENTAL);
 149                                 }
 150                                 else rrdset_next(st);
 151
 152                                 rrddim_set(st, "sent", OutMcastPkts);
 153                                 rrddim_set(st, "received", InMcastPkts);
 154                                 rrdset_done(st);
 155                         }
 156
 157                         // --------------------------------------------------------------------
 158
 159                         if(do_bcast_p == CONFIG_ONDEMAND_YES || (do_bcast_p == CONFIG_ONDEMAND_ONDEMAND && (InBcastPkts || OutBcastPkts))) {
 160                                 do_bcast_p = CONFIG_ONDEMAND_YES;
 161                                 st = rrdset_find("ipv4.bcastpkts");
 162                                 if(!st) {
 163                                         st = rrdset_create("ipv4", "bcastpkts", NULL, "broadcast", NULL, "IPv4 Broadcast Packets", "packets/s", 8500, update_every, RRDSET_TYPE_LINE);
 164                                         st->isdetail = 1;
 165
 166                                         rrddim_add(st, "received", NULL, 1, 1, RRDDIM_INCREMENTAL);
 167                                         rrddim_add(st, "sent", NULL, -1, 1, RRDDIM_INCREMENTAL);
 168                                 }
 169                                 else rrdset_next(st);
 170
 171                                 rrddim_set(st, "sent", OutBcastPkts);
 172                                 rrddim_set(st, "received", InBcastPkts);
 173                                 rrdset_done(st);
 174                         }
 175                 }
 176         }
 177
 178         return 0;
 179 }