-#!/bin/bash
+#!/usr/bin/env bash
+
+# netdata
+# real-time performance and health monitoring, done right!
+# (C) 2016 Costa Tsaousis <costa@tsaousis.gr>
+# GPL v3+
+#
+# This script is a helper to allow netdata collect tc data.
+# tc output parsing has been implemented in C, inside netdata
+# This script allows setting names to dimensions.
export PATH="${PATH}:/sbin:/usr/sbin:/usr/local/sbin"
+export LC_ALL=C
+
+
+# -----------------------------------------------------------------------------
+# find /var/run/fireqos
+
+# the default
+fireqos_run_dir="/var/run/fireqos"
+
+function realdir {
+ local r="$1"
+ local t=$(readlink "$r")
-# default time function
-now_ms=
-current_time_ms() {
- now_ms="$(date +'%s')000"
+ while [ "$t" ]
+ do
+ r=$(cd $(dirname "$r") && cd $(dirname "$t") && pwd -P)/$(basename "$t")
+ t=$(readlink "$r")
+ done
+
+ dirname "$r"
}
+if [ ! -d "${fireqos_run_dir}" ]
+ then
+
+ # the fireqos executable - we will use it to find its config
+ fireqos="$(which fireqos 2>/dev/null || command -v fireqos 2>/dev/null)"
+
+ if [ ! -z "${fireqos}" ]
+ then
+
+ fireqos_exec_dir="$(realdir ${fireqos})"
+
+ if [ ! -z "${fireqos_exec_dir}" -a "${fireqos_exec_dir}" != "." -a -f "${fireqos_exec_dir}/install.config" ]
+ then
+
+ LOCALSTATEDIR=
+ source "${fireqos_exec_dir}/install.config"
+
+ if [ -d "${LOCALSTATEDIR}/run/fireqos" ]
+ then
+ fireqos_run_dir="${LOCALSTATEDIR}/run/fireqos"
+ fi
+ fi
+ fi
+fi
+
+# -----------------------------------------------------------------------------
+# logging functions
+
+PROGRAM_FILE="$0"
+PROGRAM_NAME="$(basename $0)"
+PROGRAM_NAME="${PROGRAM_NAME/.plugin}"
+
+logdate() {
+ date "+%Y-%m-%d %H:%M:%S"
+}
+
+log() {
+ local status="${1}"
+ shift
+
+ echo >&2 "$(logdate): ${PROGRAM_NAME}: ${status}: ${*}"
+
+}
+
+warning() {
+ log WARNING "${@}"
+}
+
+error() {
+ log ERROR "${@}"
+}
+
+info() {
+ log INFO "${@}"
+}
+
+fatal() {
+ log FATAL "${@}"
+ exit 1
+}
+
+debug=0
+debug() {
+ [ $debug -eq 1 ] && log DEBUG "${@}"
+}
+
+
+# -----------------------------------------------------------------------------
+
+plugins_dir="${NETDATA_PLUGINS_DIR}"
+[ -z "$plugins_dir" ] && plugins_dir="$( dirname $PROGRAM_FILE )"
+
+config_dir=${NETDATA_CONFIG_DIR-/etc/netdata}
+tc="$(which tc 2>/dev/null || command -v tc 2>/dev/null)"
+
+
+# -----------------------------------------------------------------------------
+# user configuration
+
+# time in seconds to refresh QoS class/qdisc names
+qos_get_class_names_every=120
+
+# time in seconds to exit - netdata will restart the script
+qos_exit_every=3600
+
+# what to use? classes or qdiscs?
+tc_show="qdisc" # can also be "class"
+
+
+# -----------------------------------------------------------------------------
+# check if we have a valid number for interval
+
+t=${1}
+update_every=$((t))
+[ $((update_every)) -lt 1 ] && update_every=${NETDATA_UPDATE_EVERY}
+[ $((update_every)) -lt 1 ] && update_every=1
+
+
+# -----------------------------------------------------------------------------
+# allow the user to override our defaults
+
+if [ -f "${config_dir}/tc-qos-helper.conf" ]
+ then
+ source "${config_dir}/tc-qos-helper.conf"
+fi
+
+case "${tc_show}" in
+ qdisc|class)
+ ;;
+
+ *)
+ error "tc_show variable can be either 'qdisc' or 'class' but is set to '${tc_show}'. Assuming it is 'qdisc'."
+ tc_show="qdisc"
+ ;;
+esac
+
+
+# -----------------------------------------------------------------------------
# default sleep function
+
LOOPSLEEPMS_LASTWORK=0
loopsleepms() {
- [ "$1" = "tellwork" ] && shift
- sleep $1
+ sleep $1
}
# if found and included, this file overwrites loopsleepms()
# with a high resolution timer function for precise looping.
-. "$NETDATA_PLUGINS_DIR/loopsleepms.sh.inc"
+. "${plugins_dir}/loopsleepms.sh.inc"
-# check if we have a valid number for interval
-t=$1
-sleep_time=$((t))
-[ $((sleep_time)) -lt 1 ] && $NETDATA_UPDATE_EVERY
-[ $((sleep_time)) -lt 1 ] && sleep_time=1
-
-tc_cmd="$(which tc)"
-if [ -z "$tc_cmd" ]
- then
- echo >&2 "tc: Cannot find a 'tc' command in this system."
- exit 1
+
+# -----------------------------------------------------------------------------
+# final checks we can run
+
+if [ -z "${tc}" -o ! -x "${tc}" ]
+ then
+ fatal "cannot find command 'tc' in this system."
fi
-devices=
+tc_devices=
fix_names=
+# -----------------------------------------------------------------------------
+
setclassname() {
- echo "SETCLASSNAME $3 $2"
+ if [ "${tc_show}" = "qdisc" ]
+ then
+ echo "SETCLASSNAME $4 $2"
+ else
+ echo "SETCLASSNAME $3 $2"
+ fi
+}
+
+show_tc_cls() {
+ [ "${tc_show}" = "qdisc" ] && return 1
+
+ local x="${1}"
+
+ if [ -f /etc/iproute2/tc_cls ]
+ then
+ local classid name rest
+ while read classid name rest
+ do
+ [ -z "${classid}" -o -z "${name}" -o "${classid}" = "#" -o "${name}" = "#" -o "${classid:0:1}" = "#" -o "${name:0:1}" = "#" ] && continue
+ setclassname "" "${name}" "${classid}"
+ done </etc/iproute2/tc_cls
+ return 0
+ fi
+ return 1
+}
+
+show_fireqos_names() {
+ local x="${1}" name n interface_dev interface_classes interface_classes_monitor
+
+ if [ -f "${fireqos_run_dir}/ifaces/${x}" ]
+ then
+ name="$(<"${fireqos_run_dir}/ifaces/${x}")"
+ echo "SETDEVICENAME ${name}"
+
+ interface_dev=
+ interface_classes=
+ interface_classes_monitor=
+ source "${fireqos_run_dir}/${name}.conf"
+ for n in ${interface_classes_monitor}
+ do
+ setclassname ${n//|/ }
+ done
+ [ ! -z "${interface_dev}" ] && echo "SETDEVICEGROUP ${interface_dev}"
+
+ return 0
+ fi
+
+ return 1
}
show_tc() {
- local x="$1"
-
- echo "BEGIN $x"
- $tc_cmd -s class show dev $x
-
- # check FireQOS names for classes
- if [ ! -z "$fix_names" -a -f /var/run/fireqos/ifaces/$x ]
- then
- name="$(cat /var/run/fireqos/ifaces/$x)"
- echo "SETDEVICENAME $name"
-
- interface_classes=
- interface_classes_monitor=
- . /var/run/fireqos/$name.conf
- for n in $interface_classes_monitor
- do
- setclassname $(echo $n | tr '|' ' ')
- done
- echo "SETDEVICEGROUP $interface_dev"
- fi
- echo "END $x"
+ local x="${1}"
+
+ echo "BEGIN ${x}"
+
+ # netdata can parse the output of tc
+ ${tc} -s ${tc_show} show dev ${x}
+
+ # check FireQOS names for classes
+ if [ ! -z "${fix_names}" ]
+ then
+ show_fireqos_names "${x}" || show_tc_cls "${x}"
+ fi
+
+ echo "END ${x}"
}
-all_devices() {
- cat /proc/net/dev | grep ":" | cut -d ':' -f 1 | while read dev
- do
- l=$($tc_cmd class show dev $dev | wc -l)
- [ $l -ne 0 ] && echo $dev
- done
+find_tc_devices() {
+ local count=0 devs= dev rest l
+
+ # find all the devices in the system
+ # without forking
+ while IFS=":| " read dev rest
+ do
+ count=$((count + 1))
+ [ ${count} -le 2 ] && continue
+ devs="${devs} ${dev}"
+ done </proc/net/dev
+
+ # from all the devices find the ones
+ # that have QoS defined
+ # unfortunately, one fork per device cannot be avoided
+ tc_devices=
+ for dev in ${devs}
+ do
+ l="$(${tc} class show dev ${dev} 2>/dev/null)"
+ [ ! -z "${l}" ] && tc_devices="${tc_devices} ${dev}"
+ done
}
# update devices and class names
# once every 2 minutes
-names_every=$((120 / sleep_time))
+names_every=$((qos_get_class_names_every / update_every))
# exit this script every hour
# it will be restarted automatically
-exit_after=$((3600 / sleep_time))
+exit_after=$((qos_exit_every / update_every))
c=0
gc=0
while [ 1 ]
do
- fix_names=
- c=$((c + 1))
- gc=$((gc + 1))
+ fix_names=
+ c=$((c + 1))
+ gc=$((gc + 1))
- if [ $c -le 1 -o $c -ge $names_every ]
- then
- c=1
- fix_names="YES"
- devices="$( all_devices )"
- fi
+ if [ ${c} -le 1 -o ${c} -ge ${names_every} ]
+ then
+ c=1
+ fix_names="YES"
+ find_tc_devices
+ fi
- for d in $devices
- do
- show_tc $d
- done
+ for d in ${tc_devices}
+ do
+ show_tc ${d}
+ done
- echo "WORKTIME $LOOPSLEEPMS_LASTWORK"
+ echo "WORKTIME ${LOOPSLEEPMS_LASTWORK}"
- loopsleepms $sleep_time
+ loopsleepms ${update_every}
- [ $gc -gt $exit_after ] && exit 0
+ [ ${gc} -gt ${exit_after} ] && exit 0
done
projects / netdata.git / blobdiff