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Use ss instead of lsof (#4518)

* Use ss instead of lsof for pihole status checks

Signed-off-by: DL6ER <dl6er@dl6er.de>

* Use ss FILTER instead of piping into bash

Signed-off-by: DL6ER <dl6er@dl6er.de>

* Use ss in debug log generation

Signed-off-by: DL6ER <dl6er@dl6er.de>

* Remove lsof from dependencies

Signed-off-by: DL6ER <dl6er@dl6er.de>
This commit is contained in:
DL6ER 2022-01-05 17:41:46 +01:00 committed by GitHub
parent 7807a93e10
commit 5823f5e254
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 21 additions and 23 deletions

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@ -733,11 +733,11 @@ compare_port_to_service_assigned() {
# If the service is a Pi-hole service, highlight it in green
if [[ "${service_name}" == "${expected_service}" ]]; then
log_write "[${COL_GREEN}${port}${COL_NC}] is in use by ${COL_GREEN}${service_name}${COL_NC}"
log_write "${TICK} ${COL_GREEN}${port}${COL_NC} is in use by ${COL_GREEN}${service_name}${COL_NC}"
# Otherwise,
else
# Show the service name in red since it's non-standard
log_write "[${COL_RED}${port}${COL_NC}] is in use by ${COL_RED}${service_name}${COL_NC} (${FAQ_HARDWARE_REQUIREMENTS_PORTS})"
log_write "${CROSS} ${COL_RED}${port}${COL_NC} is in use by ${COL_RED}${service_name}${COL_NC} (${FAQ_HARDWARE_REQUIREMENTS_PORTS})"
fi
}
@ -753,32 +753,28 @@ check_required_ports() {
# Sort the addresses and remove duplicates
while IFS= read -r line; do
ports_in_use+=( "$line" )
done < <( lsof -iTCP -sTCP:LISTEN -P -n +c 10 )
done < <( ss --listening --numeric --tcp --udp --processes --oneline --no-header )
# Now that we have the values stored,
for i in "${!ports_in_use[@]}"; do
# loop through them and assign some local variables
local service_name
service_name=$(echo "${ports_in_use[$i]}" | awk '{print $1}')
service_name=$(echo "${ports_in_use[$i]}" | awk '{gsub(/users:\(\("/,"",$7);gsub(/".*/,"",$7);print $7}')
local protocol_type
protocol_type=$(echo "${ports_in_use[$i]}" | awk '{print $5}')
protocol_type=$(echo "${ports_in_use[$i]}" | awk '{print $1}')
local port_number
port_number="$(echo "${ports_in_use[$i]}" | awk '{print $9}')"
port_number="$(echo "${ports_in_use[$i]}" | awk '{print $5}')" # | awk '{gsub(/^.*:/,"",$5);print $5}')
# Skip the line if it's the titles of the columns the lsof command produces
if [[ "${service_name}" == COMMAND ]]; then
continue
fi
# Use a case statement to determine if the right services are using the right ports
case "$(echo "$port_number" | rev | cut -d: -f1 | rev)" in
53) compare_port_to_service_assigned "${resolver}" "${service_name}" 53
case "$(echo "${port_number}" | rev | cut -d: -f1 | rev)" in
53) compare_port_to_service_assigned "${resolver}" "${service_name}" "${protocol_type}:${port_number}"
;;
80) compare_port_to_service_assigned "${web_server}" "${service_name}" 80
80) compare_port_to_service_assigned "${web_server}" "${service_name}" "${protocol_type}:${port_number}"
;;
4711) compare_port_to_service_assigned "${ftl}" "${service_name}" 4711
4711) compare_port_to_service_assigned "${ftl}" "${service_name}" "${protocol_type}:${port_number}"
;;
# If it's not a default port that Pi-hole needs, just print it out for the user to see
*) log_write "${port_number} ${service_name} (${protocol_type})";
*) log_write " ${protocol_type}:${port_number} is in use by ${service_name:=<unknown>}";
esac
done
}

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@ -287,7 +287,7 @@ package_manager_detect() {
# Packages required to run this install script (stored as an array)
INSTALLER_DEPS=(git iproute2 whiptail ca-certificates)
# Packages required to run Pi-hole (stored as an array)
PIHOLE_DEPS=(cron curl iputils-ping lsof psmisc sudo unzip idn2 sqlite3 libcap2-bin dns-root-data libcap2 netcat)
PIHOLE_DEPS=(cron curl iputils-ping psmisc sudo unzip idn2 sqlite3 libcap2-bin dns-root-data libcap2 netcat)
# Packages required for the Web admin interface (stored as an array)
# It's useful to separate this from Pi-hole, since the two repos are also setup separately
PIHOLE_WEB_DEPS=(lighttpd "${phpVer}-common" "${phpVer}-cgi" "${phpVer}-sqlite3" "${phpVer}-xml" "${phpVer}-intl")
@ -332,7 +332,7 @@ package_manager_detect() {
PKG_COUNT="${PKG_MANAGER} check-update | egrep '(.i686|.x86|.noarch|.arm|.src)' | wc -l"
OS_CHECK_DEPS=(grep bind-utils)
INSTALLER_DEPS=(git iproute newt procps-ng which chkconfig ca-certificates)
PIHOLE_DEPS=(cronie curl findutils sudo unzip libidn2 psmisc sqlite libcap lsof nmap-ncat)
PIHOLE_DEPS=(cronie curl findutils sudo unzip libidn2 psmisc sqlite libcap nmap-ncat)
PIHOLE_WEB_DEPS=(lighttpd lighttpd-fastcgi php-common php-cli php-pdo php-xml php-json php-intl)
LIGHTTPD_USER="lighttpd"
LIGHTTPD_GROUP="lighttpd"

14
pihole
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@ -283,26 +283,29 @@ Options:
}
analyze_ports() {
local lv4 lv6 port=${1}
# FTL is listening at least on at least one port when this
# function is getting called
# Check individual address family/protocol combinations
# For a healthy Pi-hole, they should all be up (nothing printed)
if grep -q "IPv4.*UDP" <<< "${1}"; then
lv4="$(ss --ipv4 --listening --numeric --tcp --udp src :${port})"
if grep -q "udp " <<< "${lv4}"; then
echo -e " ${TICK} UDP (IPv4)"
else
echo -e " ${CROSS} UDP (IPv4)"
fi
if grep -q "IPv4.*TCP" <<< "${1}"; then
if grep -q "tcp " <<< "${lv4}"; then
echo -e " ${TICK} TCP (IPv4)"
else
echo -e " ${CROSS} TCP (IPv4)"
fi
if grep -q "IPv6.*UDP" <<< "${1}"; then
lv6="$(ss --ipv6 --listening --numeric --tcp --udp src :${port})"
if grep -q "udp " <<< "${lv6}"; then
echo -e " ${TICK} UDP (IPv6)"
else
echo -e " ${CROSS} UDP (IPv6)"
fi
if grep -q "IPv6.*TCP" <<< "${1}"; then
if grep -q "tcp " <<< "${lv6}"; then
echo -e " ${TICK} TCP (IPv6)"
else
echo -e " ${CROSS} TCP (IPv6)"
@ -324,7 +327,6 @@ statusFunc() {
else
#get the port pihole-FTL is listening on by using FTL's telnet API
port="$(echo ">dns-port >quit" | nc 127.0.0.1 4711)"
listening="$(lsof -Pni:${port})"
if [[ "${port}" == "0" ]]; then
case "${1}" in
"web") echo "-1";;
@ -334,7 +336,7 @@ statusFunc() {
else
if [[ "${1}" != "web" ]]; then
echo -e " ${TICK} FTL is listening on port ${port}"
analyze_ports "${listening}"
analyze_ports "${port}"
fi
fi
fi