diff options
Diffstat (limited to 'src/proc_net_dev.c')
| -rwxr-xr-x | src/proc_net_dev.c | 247 |
1 files changed, 247 insertions, 0 deletions
diff --git a/src/proc_net_dev.c b/src/proc_net_dev.c new file mode 100755 index 000000000..5070ab817 --- /dev/null +++ b/src/proc_net_dev.c @@ -0,0 +1,247 @@ +#ifdef HAVE_CONFIG_H +#include <config.h> +#endif +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include "common.h" +#include "appconfig.h" +#include "procfile.h" +#include "rrd.h" +#include "plugin_proc.h" + +int do_proc_net_dev(int update_every, unsigned long long dt) { + static procfile *ff = NULL; + static int enable_new_interfaces = -1, enable_ifb_interfaces = -1; + static int do_bandwidth = -1, do_packets = -1, do_errors = -1, do_drops = -1, do_fifo = -1, do_compressed = -1, do_events = -1; + + if(dt) {}; + + if(!ff) { + char filename[FILENAME_MAX + 1]; + snprintf(filename, FILENAME_MAX, "%s%s", global_host_prefix, "/proc/net/dev"); + ff = procfile_open(config_get("plugin:proc:/proc/net/dev", "filename to monitor", filename), " \t,:|", PROCFILE_FLAG_DEFAULT); + } + if(!ff) return 1; + + ff = procfile_readall(ff); + if(!ff) return 0; // we return 0, so that we will retry to open it next time + + if(enable_new_interfaces == -1) enable_new_interfaces = config_get_boolean_ondemand("plugin:proc:/proc/net/dev", "enable new interfaces detected at runtime", CONFIG_ONDEMAND_ONDEMAND); + if(enable_ifb_interfaces == -1) enable_ifb_interfaces = config_get_boolean_ondemand("plugin:proc:/proc/net/dev", "enable ifb interfaces", CONFIG_ONDEMAND_NO); + + if(do_bandwidth == -1) do_bandwidth = config_get_boolean_ondemand("plugin:proc:/proc/net/dev", "bandwidth for all interfaces", CONFIG_ONDEMAND_ONDEMAND); + if(do_packets == -1) do_packets = config_get_boolean_ondemand("plugin:proc:/proc/net/dev", "packets for all interfaces", CONFIG_ONDEMAND_ONDEMAND); + if(do_errors == -1) do_errors = config_get_boolean_ondemand("plugin:proc:/proc/net/dev", "errors for all interfaces", CONFIG_ONDEMAND_ONDEMAND); + if(do_drops == -1) do_drops = config_get_boolean_ondemand("plugin:proc:/proc/net/dev", "drops for all interfaces", CONFIG_ONDEMAND_ONDEMAND); + if(do_fifo == -1) do_fifo = config_get_boolean_ondemand("plugin:proc:/proc/net/dev", "fifo for all interfaces", CONFIG_ONDEMAND_ONDEMAND); + if(do_compressed == -1) do_compressed = config_get_boolean_ondemand("plugin:proc:/proc/net/dev", "compressed packets for all interfaces", CONFIG_ONDEMAND_ONDEMAND); + if(do_events == -1) do_events = config_get_boolean_ondemand("plugin:proc:/proc/net/dev", "frames, collisions, carrier counters for all interfaces", CONFIG_ONDEMAND_ONDEMAND); + + uint32_t lines = procfile_lines(ff), l; + uint32_t words; + + char *iface; + unsigned long long rbytes, rpackets, rerrors, rdrops, rfifo, rframe, rcompressed, rmulticast; + unsigned long long tbytes, tpackets, terrors, tdrops, tfifo, tcollisions, tcarrier, tcompressed; + + for(l = 2; l < lines ;l++) { + words = procfile_linewords(ff, l); + if(words < 17) continue; + + iface = procfile_lineword(ff, l, 0); + + rbytes = strtoull(procfile_lineword(ff, l, 1), NULL, 10); + rpackets = strtoull(procfile_lineword(ff, l, 2), NULL, 10); + rerrors = strtoull(procfile_lineword(ff, l, 3), NULL, 10); + rdrops = strtoull(procfile_lineword(ff, l, 4), NULL, 10); + rfifo = strtoull(procfile_lineword(ff, l, 5), NULL, 10); + rframe = strtoull(procfile_lineword(ff, l, 6), NULL, 10); + rcompressed = strtoull(procfile_lineword(ff, l, 7), NULL, 10); + rmulticast = strtoull(procfile_lineword(ff, l, 8), NULL, 10); + + tbytes = strtoull(procfile_lineword(ff, l, 9), NULL, 10); + tpackets = strtoull(procfile_lineword(ff, l, 10), NULL, 10); + terrors = strtoull(procfile_lineword(ff, l, 11), NULL, 10); + tdrops = strtoull(procfile_lineword(ff, l, 12), NULL, 10); + tfifo = strtoull(procfile_lineword(ff, l, 13), NULL, 10); + tcollisions = strtoull(procfile_lineword(ff, l, 14), NULL, 10); + tcarrier = strtoull(procfile_lineword(ff, l, 15), NULL, 10); + tcompressed = strtoull(procfile_lineword(ff, l, 16), NULL, 10); + + int ddo_bandwidth = do_bandwidth, ddo_packets = do_packets, ddo_errors = do_errors, ddo_drops = do_drops, ddo_fifo = do_fifo, ddo_compressed = do_compressed, ddo_events = do_events; + + int default_enable = enable_new_interfaces; + + // prevent unused interfaces from creating charts + if(strcmp(iface, "lo") == 0) + default_enable = 0; + else { + int len = strlen(iface); + if(len >= 4 && strcmp(&iface[len-4], "-ifb") == 0) + default_enable = enable_ifb_interfaces; + } + + // check if the user wants it + { + char var_name[512 + 1]; + snprintf(var_name, 512, "plugin:proc:/proc/net/dev:%s", iface); + default_enable = config_get_boolean_ondemand(var_name, "enabled", default_enable); + if(default_enable == CONFIG_ONDEMAND_NO) continue; + if(default_enable == CONFIG_ONDEMAND_ONDEMAND && !rbytes && !tbytes) continue; + + ddo_bandwidth = config_get_boolean_ondemand(var_name, "bandwidth", ddo_bandwidth); + ddo_packets = config_get_boolean_ondemand(var_name, "packets", ddo_packets); + ddo_errors = config_get_boolean_ondemand(var_name, "errors", ddo_errors); + ddo_drops = config_get_boolean_ondemand(var_name, "drops", ddo_drops); + ddo_fifo = config_get_boolean_ondemand(var_name, "fifo", ddo_fifo); + ddo_compressed = config_get_boolean_ondemand(var_name, "compressed", ddo_compressed); + ddo_events = config_get_boolean_ondemand(var_name, "events", ddo_events); + + if(ddo_bandwidth == CONFIG_ONDEMAND_ONDEMAND && rbytes == 0 && tbytes == 0) ddo_bandwidth = 0; + if(ddo_errors == CONFIG_ONDEMAND_ONDEMAND && rerrors == 0 && terrors == 0) ddo_errors = 0; + if(ddo_drops == CONFIG_ONDEMAND_ONDEMAND && rdrops == 0 && tdrops == 0) ddo_drops = 0; + if(ddo_fifo == CONFIG_ONDEMAND_ONDEMAND && rfifo == 0 && tfifo == 0) ddo_fifo = 0; + if(ddo_compressed == CONFIG_ONDEMAND_ONDEMAND && rcompressed == 0 && tcompressed == 0) ddo_compressed = 0; + if(ddo_events == CONFIG_ONDEMAND_ONDEMAND && rframe == 0 && tcollisions == 0 && tcarrier == 0) ddo_events = 0; + + // for absolute values, we need to switch the setting to 'yes' + // to allow it refresh from now on + // if(ddo_fifo == CONFIG_ONDEMAND_ONDEMAND) config_set(var_name, "fifo", "yes"); + } + + RRDSET *st; + + // -------------------------------------------------------------------- + + if(ddo_bandwidth) { + st = rrdset_find_bytype("net", iface); + if(!st) { + st = rrdset_create("net", iface, NULL, iface, "net.net", "Bandwidth", "kilobits/s", 7000, update_every, RRDSET_TYPE_AREA); + + rrddim_add(st, "received", NULL, 8, 1024, RRDDIM_INCREMENTAL); + rrddim_add(st, "sent", NULL, -8, 1024, RRDDIM_INCREMENTAL); + } + else rrdset_next(st); + + rrddim_set(st, "received", rbytes); + rrddim_set(st, "sent", tbytes); + rrdset_done(st); + } + + // -------------------------------------------------------------------- + + if(ddo_packets) { + st = rrdset_find_bytype("net_packets", iface); + if(!st) { + st = rrdset_create("net_packets", iface, NULL, iface, "net.packets", "Packets", "packets/s", 7001, update_every, RRDSET_TYPE_LINE); + st->isdetail = 1; + + rrddim_add(st, "received", NULL, 1, 1, RRDDIM_INCREMENTAL); + rrddim_add(st, "sent", NULL, -1, 1, RRDDIM_INCREMENTAL); + rrddim_add(st, "multicast", NULL, 1, 1, RRDDIM_INCREMENTAL); + } + else rrdset_next(st); + + rrddim_set(st, "received", rpackets); + rrddim_set(st, "sent", tpackets); + rrddim_set(st, "multicast", rmulticast); + rrdset_done(st); + } + + // -------------------------------------------------------------------- + + if(ddo_errors) { + st = rrdset_find_bytype("net_errors", iface); + if(!st) { + st = rrdset_create("net_errors", iface, NULL, iface, "net.errors", "Interface Errors", "errors/s", 7002, update_every, RRDSET_TYPE_LINE); + st->isdetail = 1; + + rrddim_add(st, "inbound", NULL, 1, 1, RRDDIM_INCREMENTAL); + rrddim_add(st, "outbound", NULL, -1, 1, RRDDIM_INCREMENTAL); + } + else rrdset_next(st); + + rrddim_set(st, "inbound", rerrors); + rrddim_set(st, "outbound", terrors); + rrdset_done(st); + } + + // -------------------------------------------------------------------- + + if(ddo_drops) { + st = rrdset_find_bytype("net_drops", iface); + if(!st) { + st = rrdset_create("net_drops", iface, NULL, iface, "net.drops", "Interface Drops", "drops/s", 7003, update_every, RRDSET_TYPE_LINE); + st->isdetail = 1; + + rrddim_add(st, "inbound", NULL, 1, 1, RRDDIM_INCREMENTAL); + rrddim_add(st, "outbound", NULL, -1, 1, RRDDIM_INCREMENTAL); + } + else rrdset_next(st); + + rrddim_set(st, "inbound", rdrops); + rrddim_set(st, "outbound", tdrops); + rrdset_done(st); + } + + // -------------------------------------------------------------------- + + if(ddo_fifo) { + st = rrdset_find_bytype("net_fifo", iface); + if(!st) { + st = rrdset_create("net_fifo", iface, NULL, iface, "net.fifo", "Interface FIFO Buffer Errors", "errors", 7004, update_every, RRDSET_TYPE_LINE); + st->isdetail = 1; + + rrddim_add(st, "receive", NULL, 1, 1, RRDDIM_INCREMENTAL); + rrddim_add(st, "transmit", NULL, -1, 1, RRDDIM_INCREMENTAL); + } + else rrdset_next(st); + + rrddim_set(st, "receive", rfifo); + rrddim_set(st, "transmit", tfifo); + rrdset_done(st); + } + + // -------------------------------------------------------------------- + + if(ddo_compressed) { + st = rrdset_find_bytype("net_compressed", iface); + if(!st) { + st = rrdset_create("net_compressed", iface, NULL, iface, "net.compressed", "Compressed Packets", "packets/s", 7005, update_every, RRDSET_TYPE_LINE); + st->isdetail = 1; + + rrddim_add(st, "received", NULL, 1, 1, RRDDIM_INCREMENTAL); + rrddim_add(st, "sent", NULL, -1, 1, RRDDIM_INCREMENTAL); + } + else rrdset_next(st); + + rrddim_set(st, "received", rcompressed); + rrddim_set(st, "sent", tcompressed); + rrdset_done(st); + } + + // -------------------------------------------------------------------- + + if(ddo_events) { + st = rrdset_find_bytype("net_events", iface); + if(!st) { + st = rrdset_create("net_events", iface, NULL, iface, "net.events", "Network Interface Events", "events/s", 7006, update_every, RRDSET_TYPE_LINE); + st->isdetail = 1; + + rrddim_add(st, "frames", NULL, 1, 1, RRDDIM_INCREMENTAL); + rrddim_add(st, "collisions", NULL, -1, 1, RRDDIM_INCREMENTAL); + rrddim_add(st, "carrier", NULL, -1, 1, RRDDIM_INCREMENTAL); + } + else rrdset_next(st); + + rrddim_set(st, "frames", rframe); + rrddim_set(st, "collisions", tcollisions); + rrddim_set(st, "carrier", tcarrier); + rrdset_done(st); + } + } + + return 0; +} |