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mwan3: replace $(cat ..) with readfile

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Remove a fork+exec

Signed-off-by: Etienne Champetier <champetier.etienne@gmail.com>
This commit is contained in:
Etienne Champetier
2025-06-27 19:18:51 -04:00
committed by Florian Eckert
parent de98fdebef
commit ecd2470ddb
5 changed files with 28 additions and 19 deletions
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2
net/mwan3/files/etc/hotplug.d/iface/15-mwan3
View File

@@ -45,7 +45,7 @@ config_get_bool enabled $INTERFACE 'enabled' '0'
config_get initial_state $INTERFACE initial_state "online"
if [ "$initial_state" = "offline" ]; then
status=$(cat $MWAN3TRACK_STATUS_DIR/$INTERFACE/STATUS 2>/dev/null || echo unknown)
readfile status $MWAN3TRACK_STATUS_DIR/$INTERFACE/STATUS 2>/dev/null || status="unknown"
[ "$status" = "online" ] || status=offline
else
status=online

7
net/mwan3/files/lib/mwan3/common.sh
View File

@@ -141,7 +141,7 @@ mwan3_init()
# mwan3's MARKing mask (at least 3 bits should be set)
if [ -e "${MWAN3_STATUS_DIR}/mmx_mask" ]; then
MMX_MASK=$(cat "${MWAN3_STATUS_DIR}/mmx_mask")
readfile MMX_MASK "${MWAN3_STATUS_DIR}/mmx_mask"
MWAN3_INTERFACE_MAX=$(uci_get_state mwan3 globals iface_max)
else
config_get MMX_MASK globals mmx_mask '0x3F00'
@@ -208,14 +208,15 @@ mwan3_count_one_bits()
}
get_uptime() {
local uptime=$(cat /proc/uptime)
local uptime
readfile uptime /proc/uptime
echo "${uptime%%.*}"
}
get_online_time() {
local time_n time_u iface
iface="$1"
time_u="$(cat "$MWAN3TRACK_STATUS_DIR/${iface}/ONLINE" 2>/dev/null)"
readfile time_u "$MWAN3TRACK_STATUS_DIR/${iface}/ONLINE" 2>/dev/null
[ -z "${time_u}" ] || [ "${time_u}" = "0" ] || {
time_n="$(get_uptime)"
echo $((time_n-time_u))

9
net/mwan3/files/lib/mwan3/mwan3.sh
View File

@@ -996,7 +996,7 @@ mwan3_interface_hotplug_shutdown()
interface="$1"
ifdown="$2"
[ -f $MWAN3TRACK_STATUS_DIR/$interface/STATUS ] && {
status=$(cat $MWAN3TRACK_STATUS_DIR/$interface/STATUS)
readfile status $MWAN3TRACK_STATUS_DIR/$interface/STATUS
}
[ "$status" != "online" ] && [ "$ifdown" != 1 ] && return
@@ -1076,8 +1076,9 @@ mwan3_set_iface_hotplug_state() {
mwan3_get_iface_hotplug_state() {
local iface=$1
cat "$MWAN3_STATUS_DIR/iface_state/$iface" 2>/dev/null || echo "offline"
local state=offline
readfile state "$MWAN3_STATUS_DIR/iface_state/$iface"
echo "$state"
}
mwan3_report_iface_status()
@@ -1101,7 +1102,7 @@ mwan3_report_iface_status()
fi
if [ -f "$MWAN3TRACK_STATUS_DIR/${1}/STATUS" ]; then
status="$(cat "$MWAN3TRACK_STATUS_DIR/${1}/STATUS")"
readfile status "$MWAN3TRACK_STATUS_DIR/${1}/STATUS"
else
status="unknown"
fi

26
net/mwan3/files/usr/libexec/rpcd/mwan3
View File

@@ -68,7 +68,7 @@ report_policies_v6() {
get_age() {
local time_p time_u
iface="$1"
time_p="$(cat "$MWAN3TRACK_STATUS_DIR/${iface}/TIME")"
readfile time_p "$MWAN3TRACK_STATUS_DIR/${iface}/TIME"
[ -z "${time_p}" ] || {
time_n="$(get_uptime)"
echo $((time_n-time_p))
@@ -78,7 +78,7 @@ get_age() {
get_offline_time() {
local time_n time_d iface
iface="$1"
time_d="$(cat "$MWAN3TRACK_STATUS_DIR/${iface}/OFFLINE")"
readfile time_d "$MWAN3TRACK_STATUS_DIR/${iface}/OFFLINE"
[ -z "${time_d}" ] || [ "${time_d}" = "0" ] || {
time_n="$(get_uptime)"
echo $((time_n-time_d))
@@ -92,7 +92,7 @@ get_mwan3_status() {
local age=0
local online=0
local offline=0
local enabled time_p time_n time_u time_d status track_status up uptime
local enabled time_p time_n time_u time_d status track_status up uptime temp
if [ "${iface}" != "${iface_select}" ] && [ "${iface_select}" != "" ]; then
return
@@ -109,7 +109,7 @@ get_mwan3_status() {
if [ -f "$MWAN3TRACK_STATUS_DIR/${iface}/STATUS" ]; then
network_get_uptime uptime "$iface"
network_is_up "$iface" && up="1"
status="$(cat "$MWAN3TRACK_STATUS_DIR/${iface}/STATUS")"
readfile status "$MWAN3TRACK_STATUS_DIR/${iface}/STATUS"
else
uptime=0
up=0
@@ -121,9 +121,12 @@ get_mwan3_status() {
json_add_int online "${online}"
json_add_int offline "${offline}"
json_add_int uptime "${uptime}"
json_add_int "score" "$(cat "$MWAN3TRACK_STATUS_DIR/${iface}/SCORE")"
json_add_int "lost" "$(cat "$MWAN3TRACK_STATUS_DIR/${iface}/LOST")"
json_add_int "turn" "$(cat "$MWAN3TRACK_STATUS_DIR/${iface}/TURN")"
readfile temp "$MWAN3TRACK_STATUS_DIR/${iface}/SCORE"
json_add_int "score" "$temp"
readfile temp "$MWAN3TRACK_STATUS_DIR/${iface}/LOST"
json_add_int "lost" "$temp"
readfile temp "$MWAN3TRACK_STATUS_DIR/${iface}/TURN"
json_add_int "turn" "$temp"
json_add_string "status" "${status}"
json_add_boolean "enabled" "${enabled}"
json_add_boolean "running" "${running}"
@@ -136,9 +139,12 @@ get_mwan3_status() {
track="${file#*/TRACK_}"
json_add_object
json_add_string ip "${track}"
json_add_string status "$(cat "${file}")"
json_add_int latency "$(cat "$MWAN3TRACK_STATUS_DIR/${iface}/LATENCY_${track}")"
json_add_int packetloss "$(cat "$MWAN3TRACK_STATUS_DIR/${iface}/LOSS_${track}")"
readfile temp "${file}"
json_add_string status "$temp"
readfile temp "$MWAN3TRACK_STATUS_DIR/${iface}/LATENCY_${track}"
json_add_int latency "$temp"
readfile temp "$MWAN3TRACK_STATUS_DIR/${iface}/LOSS_${track}"
json_add_int packetloss "$temp"
json_close_object
done
json_close_array

3
net/mwan3/files/usr/sbin/mwan3track
View File

@@ -111,7 +111,8 @@ validate_wrap() {
}
disconnected() {
local status="$(cat ${MWAN3TRACK_STATUS_DIR}/${INTERFACE}/STATUS)"
local status
readfile status ${MWAN3TRACK_STATUS_DIR}/${INTERFACE}/STATUS
STATUS='offline'
echo "offline" > $MWAN3TRACK_STATUS_DIR/$INTERFACE/STATUS