-#!/bin/bash
+#!/bin/bash -e
# modified from https://gist.github.com/krokodilerian/a88b4ae992706c22e0b0
# see /var/lib/snmp/mibs/ietf/IF-MIB
if [ -z "$1" ]; then
- echo Usage: "$0" hostname ifInErrors ifOutErrors ifInDiscards
+ echo Usage: "$0" hostname ifAdminStatus BRIDGE-MIB::dot1dStpPortState ifInErrors ifOutErrors ifInDiscards
exit 4
fi
-log=/dev/shm/port-status/
-test -d $log || mkdir $log
+dir=/dev/shm/port-status/
+if [ ! -d $dir ] ; then
+ mkdir $dir
+ ln -sv `pwd`/port-status/.git $dir/
+fi
sw="$1"
shift # rest of arguments are IfEntry SEQUENCE
. ./snmp.conf
-snmp="snmpget -v 2c -c $COMMUNITY -Cf -Ov -OQ $sw"
-numports=`$snmp IF-MIB::ifNumber.0`
-:> $log/$sw
+extra=$*
+snmpwalk="snmpwalk -Oqs -v2c -Cc -c $COMMUNITY $sw"
-for i in `seq 1 $numports`; do
- name=`$snmp IF-MIB::ifName.$i`
- alias=`$snmp IF-MIB::ifAlias.$i`
- if [ "$name" = "No Such Instance currently exists at this OID" ]; then
- continue
- fi
+fping $sw 2>>/dev/shm/dead
- iftype=`$snmp IF-MIB::ifType.$i`
+:> $dir/$sw
-# if [ "$iftype" = "other" ] || [ "$iftype" = propVirtual ] || [ "$iftype" = softwareLoopback ]; then
-# continue
-# fi
-
- status=`$snmp IF-MIB::ifOperStatus.$i`
- if [ "$status" = "notPresent" ] ; then
- continue;
- fi
+for oid in ifName ifHighSpeed ifAdminStatus ifOperStatus $extra ifType ifAlias
+do
+ echo -n "# snmpwalk $sw [$oid] = " >/dev/stderr
- #descr=`$snmp IF-MIB::ifDescr.$i`
- #speed=`$snmp IF-MIB::ifSpeed.$i | sed 's/000000//'`
- speed=`$snmp IF-MIB::ifHighSpeed.$i`
+ $snmpwalk $oid | cut -d. -f2- | tee $dir/$sw-$oid | wc -l >/dev/stderr
- extra=""
- for add in "$@"; do
- extra="$extra "`$snmp IF-MIB::$add.$i`
- done
+ # put [] around alias and remove empty ones
+ if [ "$oid" = 'ifAlias' ] ; then
+ cat $dir/$sw-$oid | sed -e 's/ / [/' -e 's/$/]/' -e 's/ \[\]$//' > $dir/$sw-$oid.new && mv $dir/$sw-$oid.new $dir/$sw-$oid
+ fi
-# echo "## $sw [$name] $iftype $status $descr $speed"
- echo "$sw $i $name $speed $status $iftype$extra [$alias]" | tee -a $log/$sw
+ if [ ! -s $dir/$sw ] ; then
+ mv $dir/$sw-$oid $dir/$sw
+ else
+ join -a 1 $dir/$sw $dir/$sw-$oid > $dir/$sw.new && mv $dir/$sw.new $dir/$sw
+ rm $dir/$sw-$oid
+ fi
done
+# add switch name prefix
+cat $dir/$sw | sed "s/^/$sw /" > $dir/$sw.new && mv $dir/$sw.new $dir/$sw
+
+cat $dir/$sw
+
+test ! -z "$extra" && exit 0 # don't commit if we have custom oids
+
+ports_changed=`cd $dir && git diff $sw | grep '^-' | awk '{ print $3 }' | tr '\n' ' '`
+if [ ! -z "$ports_changed" ] ; then
+ cd $dir && git commit -m "$sw : $ports_changed" $dir/$sw
+fi