mirror of
https://github.com/Ysurac/openmptcprouter-feeds.git
synced 2025-02-15 03:51:51 +00:00
155 lines
3.5 KiB
Bash
155 lines
3.5 KiB
Bash
#!/bin/sh
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. /lib/functions.sh
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. /lib/netifd/netifd-proto.sh
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. /usr/share/ModemManager/modemmanager.common
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trap_with_arg() {
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func="$1" ; shift
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for sig ; do
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# shellcheck disable=SC2064
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trap "$func $sig" "$sig"
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done
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}
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func_trap() {
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local monitor_cache_line object
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logger "ModemManager-monitor[$$]" "Sending signal ${1} ..."
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# Set all configured logical interfaces to unavailable
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while IFS= read -r monitor_cache_line; do
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object=$(echo "${monitor_cache_line}" | awk '{print $1}')
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mm_monitor_cache_remove "$object"
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done < ${MODEMMANAGER_MONITOR_CACHE}
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kill "-${1}" "$CHILD" 2>/dev/null
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}
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mm_monitor_get_sysfspath() {
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local object="$1"
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# If no monitor cache file, we're done
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[ -f "${MODEMMANAGER_MONITOR_CACHE}" ] || return
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awk -v object="${object}" '!/^#/ && $0 ~ object { print $2 }' "${MODEMMANAGER_MONITOR_CACHE}"
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}
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mm_monitor_cache_remove() {
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local object="$1"
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local device cfg
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device=$(mm_monitor_get_sysfspath "${object}")
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cfg=$(mm_get_modem_config "${device}")
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if [ -n "${cfg}" ]; then
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mm_log "debug" "interface '${cfg}' set '${device}' state unavailable"
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proto_set_available "${cfg}" 0
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fi
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mm_log "debug" "delete object '$object' from monitore cache"
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# On monitor remove event, remove old events from cache
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# Also substitute object path '/org/freedesktop/ModemManager1/Modem/<number>'
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# all '/' with '\/' to make sed happy with shell expansion
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sed -i "/${object//\//\\/}/d" "${MODEMMANAGER_MONITOR_CACHE}"
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}
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mm_monitor_cache_add() {
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local object="$1"
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local modemstatus device sysfspath cfg
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modemstatus="$(mmcli --modem="${object}" --output-keyvalue)"
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device=$(modemmanager_get_field "${modemstatus}" "modem.generic.device")
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[ -n "${device}" ] || {
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mm_log "err" "No 'device' for object '$object' not found..."
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return 1
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}
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sysfspath=$(modemmanager_get_field "${modemstatus}" "modem.generic.physdev")
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[ -n "${sysfspath}" ] || {
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mm_log "err" "No 'sysfspath' for object '$object' not found..."
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return 2
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}
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mm_log "debug" "add object '$object' to monitore cache (device=${device},sysfspath=${sysfspath})"
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# On monitor add event, store event details in cache (if not exists yet)
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grep -qs "${sysfspath}" "${MODEMMANAGER_MONITOR_CACHE}" || \
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echo "${object} ${device} ${sysfspath}" >> "${MODEMMANAGER_MONITOR_CACHE}"
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cfg=$(mm_get_modem_config "${device}")
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if [ -n "${cfg}" ]; then
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mm_log "info" "interface '${cfg}' set '${device}' state available"
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proto_set_available "${cfg}" 1
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fi
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}
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mm_monitor_cache_del() {
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local object="$1"
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mm_monitor_cache_remove "$object"
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}
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mm_monitor_cache() {
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local line="$1"
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local event object modemstatus device pyhsdev
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event="$(echo "$line" | cut -d " " -f 1)"
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object="$(echo "$line" | cut -d " " -f 2)"
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case "$event" in
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"(+)")
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mm_monitor_cache_add "$object"
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;;
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"(-)")
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mm_monitor_cache_del "$object"
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;;
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esac
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}
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main() {
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local n=60
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local step=1
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local mmrunning=0
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trap_with_arg func_trap INT TERM KILL
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mkdir -p "${MODEMMANAGER_RUNDIR}"
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chmod 0755 "${MODEMMANAGER_RUNDIR}"
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# Wait for ModemManager to be available in the bus
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while [ $n -ge 0 ]; do
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sleep $step
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mm_log "info" "Checking if ModemManager is available..."
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if ! /usr/bin/mmcli -L >/dev/null 2>&1; then
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mm_log "info" "ModemManager not yet available"
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else
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mmrunning=1
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break
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fi
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n=$((n-step))
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done
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[ ${mmrunning} -eq 1 ] || {
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mm_log "error" "couldn't report initial kernel events: ModemManager not running"
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return
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}
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/usr/bin/mmcli -M | {
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local line
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while read -r line; do
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mm_log "debug" "Monitor cache line: ${line}"
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mm_monitor_cache "$line"
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done
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} &
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CHILD="$!"
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wait $CHILD
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}
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main "$@"
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