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|
#!/bin/sh
#
# Copyright (C) 2021 TDT AG <development@tdt.de>
#
# This is free software, licensed under the GNU General Public License v2.
# See https://www.gnu.org/licenses/gpl-2.0.txt for more information.
#
. /lib/functions.sh
. /lib/functions/network.sh
. /usr/share/libubox/jshn.sh
IIF=1000
FWMARK=2000
ID=0
usage() {
local status="$1"
local msg="$2"
if [ -n "$msg" ]; then
echo "$msg"
echo ""
fi
echo "Usage: $(basename "$0") <command>"
echo "command:"
echo " diag: diagnostic commands"
echo " ipset: ipset commands"
echo ""
echo "diag <command> <iface>"
echo "command:"
echo " gateway <iface>: ping interface gateway"
echo " tracking <iface>: ping interface tracking targets"
echo " rules <iface>: check interface routing rules"
echo " routes <iface>: check interface routing tables"
echo ""
echo "ipset <command>"
echo "command:"
echo " dump: show all configured ipset names"
exit "$status"
}
diag_gateway() {
local iface="$1"
local gw
network_get_gateway gw "${iface}"
[ -z "$gw" ] && network_get_gateway gw "${iface}_4"
[ -z "$gw" ] && {
echo "No gateway for interface ${iface} found."
exit 2
}
mwan3 use "$iface" "ping" "-c" "5" "-W" "1" "$gw"
}
diag_tracking() {
local iface="$1"
checkips() {
local ip="$1"
local iface="$2"
mwan3 use "$iface" "ping" "-c" "5" "-W" "1" "$ip"
}
config_load mwan3
config_list_foreach "$iface" "track_ip" checkips "$iface"
}
iface_number() {
local cfg="$1"
local iface="$2"
let number++
[ "$cfg" = "$iface" ] && {
ID="$number"
}
}
diag_rules() {
local iface="$1"
local number=0
local iif=0
local fwmark=0
local iif_rule iif_result
local fwmark_rule fwmark_result
config_load mwan3
config_foreach iface_number 'interface' "$iface"
[ "$ID" = "0" ] && {
echo "Unable to get mwan3 interface number for \"$iface\"."
exit 2
}
let "iif=$IIF+$ID"
let "fwmark=$FWMARK+$ID"
iif_rule="$(ip rule | grep ${iif})"
iif_result="$?"
fwmark_rule="$(ip rule | grep ${fwmark})"
fwmark_result="$?"
if [ "$fwmark_result" = 0 ] && [ "$iif_result" = 0 ]; then
echo "All required IP rules for interface \"$iface\" found"
echo "$fwmark_rule"
echo "$iif_rule"
elif [ "$fwmark_result" = 1 ] && [ "$iif_result" = 0 ]; then
echo "Only iif IP rule for interface \"$iface\" found"
echo "$iif_rule"
elif [ "$fwmark_result" = 0 ] && [ "$iif_result" = 1 ]; then
echo "Only fwmark IP rule for interface \"$iface\" found"
echo "$fwmark_rule"
else
echo "Missing fwmark and iif IP rule for interface \"$iface\""
fi
}
diag_routes() {
local iface="$1"
local table table_result
config_load mwan3
config_foreach iface_number 'interface' "$iface"
[ "$ID" = "0" ] && {
echo "Unable to get mwan3 interface number for \"$iface\"."
exit 2
}
table="$(ip route list table $ID)"
table_result="$?"
if [ "$table_result" = 0 ]; then
echo "Routing table \"$ID\" for interface \"$iface\" found"
echo "$table"
else
echo "Routing table \"$ID\" for interface \"$iface\" not found"
fi
}
diag_cmd() {
case "$1" in
gateway)
diag_gateway "$2"
;;
tracking)
diag_tracking "$2"
;;
rules)
diag_rules "$2"
;;
routes)
diag_routes "$2"
;;
*)
usage "1" "Command not supported"
;;
esac
}
ipset_dump() {
ipset -n -L 2>/dev/null | grep -v mwan3_ | sort -u
}
ipset_cmd() {
case "$1" in
dump)
ipset_dump
;;
*)
usage "1" "Command not supported"
;;
esac
}
main () {
case "$1" in
diag)
diag_cmd "$2" "$3"
;;
ipset)
ipset_cmd "$2"
;;
*)
usage "1" "Command not supported"
;;
esac
}
main "$@"
|
