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#!/bin/sh
# SPDX-License-Identifier: CC0-1.0
# 2022 Aleksander Morgado <aleksander@aleksander.es>
#
# Automatically report to netifd that the underlying modem
# is really disconnected
#
# require program name and at least 4 arguments
[ $# -lt 4 ] && exit 1
MODEM_PATH="$1"
BEARER_PATH="$2"
INTERFACE="$3"
STATE="$4"
[ "${STATE}" = "disconnected" ] || exit 0
. /lib/netifd/netifd-proto.sh
. /usr/share/ModemManager/modemmanager.common
MODEM_STATUS=$(mmcli --modem="${MODEM_PATH}" --output-keyvalue)
[ -n "${MODEM_STATUS}" ] || exit 1
MODEM_DEVICE=$(modemmanager_get_field "${MODEM_STATUS}" "modem.generic.device")
[ -n "${MODEM_DEVICE}" ] || exit 2
CFG=$(mm_get_modem_config "${MODEM_DEVICE}")
[ -n "${CFG}" ] || exit 3
IFUP=$(ifstatus "${CFG}" | jsonfilter -e "@.up")
[ "${IFUP}" = "true" ] && {
mm_log "info" "Reconnecting '${CFG}' on '${STATE}' event"
ubus call network.interface down "{ 'interface': '${CFG}'}"
ubus call network.interface up "{ 'interface': '${CFG}'}"
}
exit 0
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