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pi-hole/advanced/Scripts/piholeNetworkFlush.sh
Christian König 285b3c37f9
Tweak fluash ARP function
Signed-off-by: Christian König <github@yubiuser.dev>
2025-07-22 12:45:22 +02:00

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#!/usr/bin/env bash
# Pi-hole: A black hole for Internet advertisements
# (c) 2019 Pi-hole, LLC (https://pi-hole.net)
# Network-wide ad blocking via your own hardware.
#
# Network table flush
#
# This file is copyright under the latest version of the EUPL.
# Please see LICENSE file for your rights under this license.
coltable="/opt/pihole/COL_TABLE"
if [[ -f ${coltable} ]]; then
# shellcheck source="./advanced/Scripts/COL_TABLE"
source ${coltable}
fi
readonly PI_HOLE_SCRIPT_DIR="/opt/pihole"
utilsfile="${PI_HOLE_SCRIPT_DIR}/utils.sh"
# shellcheck source=./advanced/Scripts/utils.sh
source "${utilsfile}"
# Source api functions
# shellcheck source="./advanced/Scripts/api.sh"
. "${PI_HOLE_SCRIPT_DIR}/api.sh"
flushNetwork(){
local output
echo -ne " ${INFO} Flushing network table ..."
local data status error
# Authenticate with FTL
LoginAPI
# send query again
data=$(PostFTLData "action/flush/network" "" "status")
# Separate the status from the data
status=$(printf %s "${data#"${data%???}"}")
data=$(printf %s "${data%???}")
# If there is an .error object in the returned data, display it
local error
error=$(jq --compact-output <<< "${data}" '.error')
if [[ $error != "null" && $error != "" ]]; then
echo -e "${OVER} ${CROSS} Failed to flush the network table:"
echo -e " $(jq <<< "${data}" '.error')"
LogoutAPI
exit 1
elif [[ "${status}" == "200" ]]; then
echo -e "${OVER} ${TICK} Flushed network table"
fi
# Delete session
LogoutAPI
}
flushArp(){
# Flush ARP cache of the host
if ! output=$(ip -s -s neigh flush all 2>&1); then
echo -e "${OVER} ${CROSS} Failed to flush ARP cache"
echo " Output: ${output}"
return 1
fi
}
# Process all options (if present)
while [ "$#" -gt 0 ]; do
case "$1" in
"--arp" ) doARP=true ;;
esac
shift
done
flushNetwork
if [[ "${doARP}" == true ]]; then
echo -ne " ${INFO} Flushing ARP cache"
if flushArp; then
echo -e "${OVER} ${TICK} Flushed ARP cache"
fi
fi