diff options
| -rwxr-xr-x | check_snmp_if | 36 |
1 files changed, 34 insertions, 2 deletions
diff --git a/check_snmp_if b/check_snmp_if index 5872367..279f397 100755 --- a/check_snmp_if +++ b/check_snmp_if @@ -1,5 +1,8 @@ #!/bin/bash +# https://ixnfo.com/en/snmp-oid-and-mib-for-interfaces.html +# https://oidref.com/1.3.6.1.2.1.2.2.1 + RESULTS=(OK WARNING CRITICAL UNKNOWN) perror() { @@ -16,10 +19,33 @@ fail() { result() { local RET=$1 shift - echo "SNMP IF ${RESULTS[$RET]}: $@" + echo -n "SNMP IF ${RESULTS[$RET]}: $@" + perfdata exit $RET } +walk() { + snmpwalk -c "$COMMUNITY" -v 2c "$HOSTNAME" "1.3.6.1.2.1.2.2.1.$1.$INTERFACE" + return $? +} + +extract_val() { + sed -n 's/.*=\(.*\)/\1/p' | sed -n 's/.*:\s*\(.*\)/\1/p' +} + +perfdata() { + [ $GENPERFDATA -eq 0 ] && return + + echo -n "| " + echo -n "in=$INOCTETS " + echo -n "out=$OUTOCTETS " + echo -n "in_err=$INERRORS " + echo -n "out_err=$OUTERRORS " + echo +} + +GENPERFDATA=0 + while getopts ":H:c:i:" opt; do case $opt in H) @@ -45,7 +71,13 @@ RET=$? [ $RET -ne 0 ] && result 3 "snmpwalk failed with code $RET: $SNMPWALK_RESULT" [ -z "$SNMPWALK_RESULT" ] && result 2 "No matching entry found." -IFS='=' LINE=($SNMPWALK_RESULT) +GENPERFDATA=1 + +INOCTETS=$(walk 10 | extract_val) +OUTOCTETS=$(walk 16 | extract_val) + +INERRORS=$(walk 14 | extract_val) +OUTERRORS=$(walk 20 | extract_val) sed -n 's/.*=\(.*\)/\1/p' <<< "$SNMPWALK_RESULT" | grep "up\|1" > /dev/null && result 0 "Interface $INTERFACE is up." |