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https://github.com/pi-hole/pi-hole.git
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82 lines
2.3 KiB
Bash
Executable file
82 lines
2.3 KiB
Bash
Executable file
#!/usr/bin/env bash
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# shellcheck disable=SC1090
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# Pi-hole: A black hole for Internet advertisements
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# (c) 2019 Pi-hole, LLC (https://pi-hole.net)
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# Network-wide ad blocking via your own hardware.
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#
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# ARP table interaction
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#
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# This file is copyright under the latest version of the EUPL.
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# Please see LICENSE file for your rights under this license.
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coltable="/opt/pihole/COL_TABLE"
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if [[ -f ${coltable} ]]; then
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source ${coltable}
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fi
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readonly PI_HOLE_SCRIPT_DIR="/opt/pihole"
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utilsfile="${PI_HOLE_SCRIPT_DIR}/utils.sh"
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source "${utilsfile}"
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# Determine database location
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DBFILE=$(getFTLConfigValue "files.database")
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if [ -z "$DBFILE" ]; then
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DBFILE="/etc/pihole/pihole-FTL.db"
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fi
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flushARP(){
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local output
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if [[ "${args[1]}" != "quiet" ]]; then
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echo -ne " ${INFO} Flushing network table ..."
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fi
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# Stop FTL to prevent database access
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if ! output=$(pihole-FTL service stop 2>&1); then
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echo -e "${OVER} ${CROSS} Failed to stop FTL"
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echo " Output: ${output}"
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return 1
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fi
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# Truncate network_addresses table in pihole-FTL.db
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# This needs to be done before we can truncate the network table due to
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# foreign key constraints
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if ! output=$(pihole-FTL sqlite3 -ni "${DBFILE}" "DELETE FROM network_addresses" 2>&1); then
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echo -e "${OVER} ${CROSS} Failed to truncate network_addresses table"
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echo " Database location: ${DBFILE}"
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echo " Output: ${output}"
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return 1
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fi
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# Truncate network table in pihole-FTL.db
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if ! output=$(pihole-FTL sqlite3 -ni "${DBFILE}" "DELETE FROM network" 2>&1); then
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echo -e "${OVER} ${CROSS} Failed to truncate network table"
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echo " Database location: ${DBFILE}"
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echo " Output: ${output}"
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return 1
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fi
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# Flush ARP cache of the host
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if ! output=$(ip -s -s neigh flush all 2>&1); then
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echo -e "${OVER} ${CROSS} Failed to flush ARP cache"
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echo " Output: ${output}"
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return 1
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fi
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# Start FTL again
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if ! output=$(pihole-FTL service restart 2>&1); then
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echo -e "${OVER} ${CROSS} Failed to restart FTL"
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echo " Output: ${output}"
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return 1
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fi
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if [[ "${args[1]}" != "quiet" ]]; then
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echo -e "${OVER} ${TICK} Flushed network table"
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fi
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}
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args=("$@")
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case "${args[0]}" in
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"arpflush" ) flushARP;;
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esac
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