Munin plugin written in shell designed to graph BGP routes
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#!/bin/sh
# Copyright 2017 alarig <alarig@grifon.fr>
# Copyright 2017 petrus
#
# BSD-3-Clause licence
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# 1. Redistributions of source code must retain the above copyright notice,
# this list of conditions and the following disclaimer.
#
# 2. Redistributions in binary form must reproduce the above copyright notice,
# this list of conditions and the following disclaimer in the documentation
# and/or other materials provided with the distribution.
#
# 3. Neither the name of the copyright holder nor the names of its contributors
# may be used to endorse or promote products derived from this software without
# specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
config() {
local proto=$1
local type=$2
local line=$3
printf "${proto}_${type}.label ${proto}_${type}\n"
printf "${proto}_${type}.draw LINE${line}\n"
}
draw() {
local proto=$1
local type=$2
printf "${proto}_${type}.value "
# $birdc show protocols all $proto | awk "/Routes:/ { print $field }";
nbroutes="$($birdc show protocols all $proto | grep 'Routes:' | \
sed -Ee '/'$type'/{ s/^.* ([0-9]+) '$type'.*$/\1/; p;}' -e d)"
if [ "$nbroutes" = "" ]; then
printf "0\n"
else
printf "$nbroutes\n"
fi
}
if [ "${0#*_}" = 'v4' ]; then
version='IPv4'
birdc='birdc'
elif [ "${0#*_}" = 'v6' ]; then
version='IPv6'
birdc='birdc6'
else
exit 1;
fi
if [ "$1" = "config" ]; then
echo "graph_title bird $version routes and neighbors"
echo 'graph_args -l 0'
echo 'graph_category Network'
echo 'graph_scale no'
for proto in $($birdc show protocols | awk 'NR > 2 { print $1 }'); do
config ${proto} imported 1;
config ${proto} filtered 1;
config ${proto} exported 1;
config ${proto} preferred 2;
done
exit 0
fi
for proto in $($birdc show protocols | awk 'NR > 2 { print $1 }'); do
draw ${proto} imported;
draw ${proto} filtered;
draw ${proto} exported;
draw ${proto} preferred;
done