Merge pull request #23128 from TDT-AG/pr/20240119-modemmanager
modemmanager: replace modem available check on start with the new monitore service
This commit is contained in:
Florian Eckert
GitHub
commit
f9c90fce0a
8 changed files with 236 additions and 246 deletions
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@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
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PKG_NAME:=modemmanager
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PKG_SOURCE_VERSION:=1.22.0
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PKG_RELEASE:=8
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PKG_RELEASE:=9
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PKG_SOURCE_PROTO:=git
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PKG_SOURCE_URL:=https://gitlab.freedesktop.org/mobile-broadband/ModemManager.git
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@ -92,6 +92,7 @@ define Package/modemmanager/install
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$(INSTALL_DIR) $(1)/usr/sbin
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$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/sbin/ModemManager $(1)/usr/sbin
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$(INSTALL_BIN) ./files/usr/sbin/ModemManager-wrapper $(1)/usr/sbin
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$(INSTALL_BIN) ./files/usr/sbin/ModemManager-monitor $(1)/usr/sbin
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$(INSTALL_DIR) $(1)/usr/bin
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$(INSTALL_BIN) $(PKG_INSTALL_DIR)/usr/bin/mmcli $(1)/usr/bin
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@ -118,9 +119,6 @@ define Package/modemmanager/install
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$(INSTALL_DIR) $(1)/etc/init.d
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$(INSTALL_BIN) ./files/modemmanager.init $(1)/etc/init.d/modemmanager
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$(INSTALL_DIR) $(1)/etc/hotplug.d/usb
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$(INSTALL_DATA) ./files/25-modemmanager-usb $(1)/etc/hotplug.d/usb
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$(INSTALL_DIR) $(1)/etc/hotplug.d/net
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$(INSTALL_DATA) ./files/25-modemmanager-net $(1)/etc/hotplug.d/net
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@ -16,9 +16,8 @@ STATE="$4"
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[ "${STATE}" = "disconnected" ] || exit 0
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. /usr/share/ModemManager/modemmanager.common
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. /lib/netifd/netifd-proto.sh
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INCLUDE_ONLY=1 . /lib/netifd/proto/modemmanager.sh
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. /usr/share/ModemManager/modemmanager.common
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MODEM_STATUS=$(mmcli --modem="${MODEM_PATH}" --output-keyvalue)
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[ -n "${MODEM_STATUS}" ] || exit 1
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@ -1,13 +0,0 @@
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#!/bin/sh
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# Copyright (C) 2019 Aleksander Morgado <aleksander@aleksander.es>
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# We need to process only full USB device removal events, we don't
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# want to process specific interface removal events.
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[ "$ACTION" = remove ] || exit
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[ -z "${INTERFACE}" ] || exit
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# Load common utilities
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. /usr/share/ModemManager/modemmanager.common
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mm_clear_modem_wait_status "/sys${DEVPATH}"
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mm_cleanup_interface_by_sysfspath "/sys${DEVPATH}"
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@ -6,7 +6,6 @@
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. /lib/functions.sh
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. /lib/netifd/netifd-proto.sh
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INCLUDE_ONLY=1 . /lib/netifd/proto/modemmanager.sh
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################################################################################
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# Runtime state
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@ -14,7 +13,7 @@ INCLUDE_ONLY=1 . /lib/netifd/proto/modemmanager.sh
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MODEMMANAGER_RUNDIR="/var/run/modemmanager"
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MODEMMANAGER_PID_FILE="${MODEMMANAGER_RUNDIR}/modemmanager.pid"
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MODEMMANAGER_CDCWDM_CACHE="${MODEMMANAGER_RUNDIR}/cdcwdm.cache"
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MODEMMANAGER_SYSFS_CACHE="${MODEMMANAGER_RUNDIR}/sysfs.cache"
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MODEMMANAGER_MONITOR_CACHE="${MODEMMANAGER_RUNDIR}/monitor.cache"
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MODEMMANAGER_EVENTS_CACHE="${MODEMMANAGER_RUNDIR}/events.cache"
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################################################################################
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@ -22,6 +21,8 @@ MODEMMANAGER_EVENTS_CACHE="${MODEMMANAGER_RUNDIR}/events.cache"
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mm_log() {
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local level="$1"; shift
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[ "${level}" = "debug" ] && return
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logger -p "daemon.${level}" -t "ModemManager[$$]" "hotplug: $*"
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}
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@ -93,48 +94,6 @@ mm_untrack_cdcwdm() {
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echo "${cdcwdm}"
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}
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################################################################################
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# ModemManager needs some time from the ports being added until a modem object
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# is exposed in DBus. With the logic here we do an explicit wait of N seconds
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# for ModemManager to expose the new modem object, making sure that the wait is
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# unique per device (i.e. per physical device sysfs path).
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# Gets the modem wait status as retrieved from the cache
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mm_get_modem_wait_status() {
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local sysfspath="$1"
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# If no sysfs cache file, we're done
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[ -f "${MODEMMANAGER_SYSFS_CACHE}" ] || return
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# Get status of the sysfs path
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awk -v sysfspath="${sysfspath}" '!/^#/ && $0 ~ sysfspath { print $2 }' "${MODEMMANAGER_SYSFS_CACHE}"
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}
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# Clear the modem wait status from the cache, if any
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mm_clear_modem_wait_status() {
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local sysfspath="$1"
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local escaped_sysfspath
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[ -f "${MODEMMANAGER_SYSFS_CACHE}" ] && {
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# escape '/', '\' and '&' for sed...
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escaped_sysfspath=$(echo "$sysfspath" | sed -e 's/[\/&]/\\&/g')
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sed -i "/${escaped_sysfspath}/d" "${MODEMMANAGER_SYSFS_CACHE}"
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}
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}
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# Sets the modem wait status in the cache
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mm_set_modem_wait_status() {
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local sysfspath="$1"
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local status="$2"
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# Remove sysfs line before adding the new one with the new state
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mm_clear_modem_wait_status "${sysfspath}"
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# Add the new status
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echo "${sysfspath} ${status}" >> "${MODEMMANAGER_SYSFS_CACHE}"
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}
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# Callback for config_foreach()
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mm_get_modem_config_foreach_cb() {
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local cfg="$1"
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@ -156,112 +115,6 @@ mm_get_modem_config() {
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config_foreach mm_get_modem_config_foreach_cb interface "${sysfspath}"
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}
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# Wait for a modem in the specified sysfspath
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mm_wait_for_modem() {
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local cfg="$1"
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local sysfspath="$2"
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# TODO: config max wait
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local n=45
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local step=5
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while [ $n -ge 0 ]; do
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[ -d "${sysfspath}" ] || {
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mm_log "error" "ignoring modem detection request: no device at ${sysfspath}"
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proto_set_available "${cfg}" 0
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return 1
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}
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# Check if the modem exists at the given sysfs path
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if ! mmcli -m "${sysfspath}" > /dev/null 2>&1
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then
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mm_log "error" "modem not detected at sysfs path"
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else
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mm_log "info" "modem exported successfully at ${sysfspath}"
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mm_log "info" "setting interface '${cfg}' as available"
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proto_set_available "${cfg}" 1
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return 0
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fi
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sleep $step
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n=$((n-step))
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done
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mm_log "error" "timed out waiting for the modem to get exported at ${sysfspath}"
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proto_set_available "${cfg}" 0
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return 2
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}
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mm_report_modem_wait() {
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local sysfspath=$1
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local parent_sysfspath status
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parent_sysfspath=$(mm_find_physdev_sysfs_path "$sysfspath")
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[ -n "${parent_sysfspath}" ] || {
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mm_log "error" "parent device sysfspath not found"
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return
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}
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status=$(mm_get_modem_wait_status "${parent_sysfspath}")
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case "${status}" in
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"")
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local cfg
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cfg=$(mm_get_modem_config "${parent_sysfspath}")
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if [ -n "${cfg}" ]; then
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mm_log "info" "interface '${cfg}' is set to configure device '${parent_sysfspath}'"
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mm_log "info" "now waiting for modem at sysfs path ${parent_sysfspath}"
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mm_set_modem_wait_status "${parent_sysfspath}" "processed"
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# Launch subshell for the explicit wait
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( mm_wait_for_modem "${cfg}" "${parent_sysfspath}" ) > /dev/null 2>&1 &
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else
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mm_log "info" "no need to wait for modem at sysfs path ${parent_sysfspath}"
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mm_set_modem_wait_status "${parent_sysfspath}" "ignored"
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fi
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;;
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"processed")
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mm_log "info" "already waiting for modem at sysfs path ${parent_sysfspath}"
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;;
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"ignored")
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;;
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*)
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mm_log "error" "unknown status read for device at sysfs path ${parent_sysfspath}"
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;;
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esac
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}
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################################################################################
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# Cleanup interfaces
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mm_cleanup_interfaces() {
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local sysfs_path status
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# Do nothing if there is no sysfs cache
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[ -f "${MODEMMANAGER_SYSFS_CACHE}" ] || return
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while IFS= read -r sysfs_cache_line; do
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sysfs_path=$(echo "${sysfs_cache_line}" | awk '{print $1}')
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status=$(echo "${sysfs_cache_line}" | awk '{print $2}')
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if [ "${status}" = "processed" ]; then
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mm_log "debug" "call cleanup for: ${sysfs_path}"
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mm_cleanup_interface_by_sysfspath "${sysfs_path}"
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fi
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done < ${MODEMMANAGER_SYSFS_CACHE}
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}
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mm_cleanup_interface_by_sysfspath() {
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local dev="$1"
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local cfg
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cfg=$(mm_get_modem_config "$dev")
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[ -n "${cfg}" ] || return
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mm_log "info" "setting interface '$cfg' as unavailable"
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proto_set_available "${cfg}" 0
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}
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################################################################################
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# Event reporting
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@ -296,13 +149,9 @@ mm_report_event() {
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# Report the event
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mm_log "debug" "Report event: action=${action}, name=${name}, subsystem=${subsystem}"
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result=$(mmcli --report-kernel-event="action=${action},name=${name},subsystem=${subsystem}" 2>&1)
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if [ "$?" -eq "0" ]; then
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# Wait for added modem if a sysfspath is given
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[ -n "${sysfspath}" ] && [ "$action" = "add" ] && mm_report_modem_wait "${sysfspath}"
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else
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if [ "$?" -ne "0" ]; then
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mm_log "error" "Couldn't report kernel event: ${result}"
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fi
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}
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mm_report_event_from_cache_line() {
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@ -351,3 +200,69 @@ mm_report_events_from_cache() {
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mm_report_event_from_cache_line "${event_line}"
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done < ${MODEMMANAGER_EVENTS_CACHE}
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}
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# This method expects as first argument a list of key-value pairs, as returned by mmcli --output-keyvalue
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# The second argument must be exactly the name of the field to read
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#
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# Sample output:
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# $ mmcli -m 0 -K
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# modem.dbus-path : /org/freedesktop/ModemManager1/Modem/0
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# modem.generic.device-identifier : ed6eff2e3e0f90463da1c2a755b2acacd1335752
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# modem.generic.manufacturer : Dell Inc.
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# modem.generic.model : DW5821e Snapdragon X20 LTE
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# modem.generic.revision : T77W968.F1.0.0.4.0.GC.009\n026
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# modem.generic.carrier-configuration : GCF
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# modem.generic.carrier-configuration-revision : 08E00009
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# modem.generic.hardware-revision : DW5821e Snapdragon X20 LTE
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# ....
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modemmanager_get_field() {
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local list=$1
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local field=$2
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local value=""
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[ -z "${list}" ] || [ -z "${field}" ] && return
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# there is always at least a whitespace after each key, and we use that as part of the
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# key matching we do (e.g. to avoid getting 'modem.generic.state-failed-reason' as a result
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# when grepping for 'modem.generic.state'.
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line=$(echo "${list}" | grep "${field} ")
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value=$(echo ${line#*:})
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# not found?
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[ -n "${value}" ] || return 2
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# only print value if set
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[ "${value}" != "--" ] && echo "${value}"
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return 0
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}
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# build a comma-separated list of values from the list
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modemmanager_get_multivalue_field() {
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local list=$1
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local field=$2
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local value=""
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local length idx item
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[ -z "${list}" ] || [ -z "${field}" ] && return
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length=$(modemmanager_get_field "${list}" "${field}.length")
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[ -n "${length}" ] || return 0
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[ "$length" -ge 1 ] || return 0
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idx=1
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while [ $idx -le "$length" ]; do
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item=$(modemmanager_get_field "${list}" "${field}.value\[$idx\]")
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[ -n "${item}" ] && [ "${item}" != "--" ] && {
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[ -n "${value}" ] && value="${value}, "
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value="${value}${item}"
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}
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idx=$((idx + 1))
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done
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# nothing built?
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[ -n "${value}" ] || return 2
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# only print value if set
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echo "${value}"
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return 0
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}
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@ -21,11 +21,15 @@ start_service() {
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# wrapper script called '/usr/sbin/ModemManager-wrapper'.
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#
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. /usr/share/ModemManager/modemmanager.common
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procd_open_instance
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procd_open_instance "service"
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procd_set_param command /usr/sbin/ModemManager-wrapper
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procd_append_param command --log-level="$LOG_LEVEL"
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[ "$LOG_LEVEL" = "DEBUG" ] && procd_append_param command --debug
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procd_set_param respawn "${respawn_threshold:-3600}" "${respawn_timeout:-5}" "${respawn_retry:-5}"
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procd_set_param pidfile "${MODEMMANAGER_PID_FILE}"
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procd_close_instance
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procd_open_instance "monitor"
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procd_set_param command /usr/sbin/ModemManager-monitor
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procd_set_param respawn "${respawn_threshold:-3600}" "${respawn_timeout:-5}" "${respawn_retry:-5}"
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procd_close_instance
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}
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@ -8,6 +8,7 @@
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. /lib/functions.sh
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. ../netifd-proto.sh
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. ./ppp.sh
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. /usr/share/ModemManager/modemmanager.common
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init_proto "$@"
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}
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@ -24,72 +25,6 @@ cdr2mask ()
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echo "${1-0}"."${2-0}"."${3-0}"."${4-0}"
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}
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# This method expects as first argument a list of key-value pairs, as returned by mmcli --output-keyvalue
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# The second argument must be exactly the name of the field to read
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#
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# Sample output:
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# $ mmcli -m 0 -K
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# modem.dbus-path : /org/freedesktop/ModemManager1/Modem/0
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# modem.generic.device-identifier : ed6eff2e3e0f90463da1c2a755b2acacd1335752
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# modem.generic.manufacturer : Dell Inc.
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# modem.generic.model : DW5821e Snapdragon X20 LTE
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# modem.generic.revision : T77W968.F1.0.0.4.0.GC.009\n026
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# modem.generic.carrier-configuration : GCF
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# modem.generic.carrier-configuration-revision : 08E00009
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# modem.generic.hardware-revision : DW5821e Snapdragon X20 LTE
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# ....
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modemmanager_get_field() {
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local list=$1
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local field=$2
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local value=""
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[ -z "${list}" ] || [ -z "${field}" ] && return
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# there is always at least a whitespace after each key, and we use that as part of the
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# key matching we do (e.g. to avoid getting 'modem.generic.state-failed-reason' as a result
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# when grepping for 'modem.generic.state'.
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line=$(echo "${list}" | grep "${field} ")
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value=$(echo ${line#*:})
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# not found?
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[ -n "${value}" ] || return 2
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# only print value if set
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[ "${value}" != "--" ] && echo "${value}"
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return 0
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}
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# build a comma-separated list of values from the list
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modemmanager_get_multivalue_field() {
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local list=$1
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local field=$2
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local value=""
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local length idx item
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[ -z "${list}" ] || [ -z "${field}" ] && return
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length=$(modemmanager_get_field "${list}" "${field}.length")
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[ -n "${length}" ] || return 0
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[ "$length" -ge 1 ] || return 0
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idx=1
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while [ $idx -le "$length" ]; do
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item=$(modemmanager_get_field "${list}" "${field}.value\[$idx\]")
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[ -n "${item}" ] && [ "${item}" != "--" ] && {
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[ -n "${value}" ] && value="${value}, "
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value="${value}${item}"
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}
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idx=$((idx + 1))
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done
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# nothing built?
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[ -n "${value}" ] || return 2
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# only print value if set
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echo "${value}"
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return 0
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}
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modemmanager_cleanup_connection() {
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local modemstatus="$1"
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155
net/modemmanager/files/usr/sbin/ModemManager-monitor
Normal file
155
net/modemmanager/files/usr/sbin/ModemManager-monitor
Normal file
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@ -0,0 +1,155 @@
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#!/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"
|
||||
done
|
||||
}
|
||||
|
||||
func_trap() {
|
||||
local monitor_cache_line object
|
||||
|
||||
logger "ModemManager-monitor[$$]" "Sending signal ${1} ..."
|
||||
|
||||
# Set all configured logical interfaces to unavailable
|
||||
while IFS= read -r monitor_cache_line; do
|
||||
object=$(echo "${monitor_cache_line}" | awk '{print $1}')
|
||||
mm_monitor_cache_remove "$object"
|
||||
done < ${MODEMMANAGER_MONITOR_CACHE}
|
||||
|
||||
kill "-${1}" "$CHILD" 2>/dev/null
|
||||
}
|
||||
|
||||
mm_monitor_get_sysfspath() {
|
||||
local object="$1"
|
||||
|
||||
# If no monitor cache file, we're done
|
||||
[ -f "${MODEMMANAGER_MONITOR_CACHE}" ] || return
|
||||
|
||||
awk -v object="${object}" '!/^#/ && $0 ~ object { print $2 }' "${MODEMMANAGER_MONITOR_CACHE}"
|
||||
}
|
||||
|
||||
mm_monitor_cache_remove() {
|
||||
local object="$1"
|
||||
|
||||
local device cfg
|
||||
|
||||
device=$(mm_monitor_get_sysfspath "${object}")
|
||||
|
||||
cfg=$(mm_get_modem_config "${device}")
|
||||
if [ -n "${cfg}" ]; then
|
||||
mm_log "debug" "interface '${cfg}' set '${device}' state unavailable"
|
||||
proto_set_available "${cfg}" 0
|
||||
fi
|
||||
|
||||
mm_log "debug" "delete object '$object' from monitore cache"
|
||||
|
||||
# On monitor remove event, remove old events from cache
|
||||
# Also substitute object path '/org/freedesktop/ModemManager1/Modem/<number>'
|
||||
# all '/' with '\/' to make sed happy with shell expansion
|
||||
sed -i "/${object//\//\\/}/d" "${MODEMMANAGER_MONITOR_CACHE}"
|
||||
}
|
||||
|
||||
mm_monitor_cache_add() {
|
||||
local object="$1"
|
||||
local modemstatus device sysfspath cfg
|
||||
|
||||
modemstatus="$(mmcli --modem="${object}" --output-keyvalue)"
|
||||
|
||||
device=$(modemmanager_get_field "${modemstatus}" "modem.generic.device")
|
||||
[ -n "${device}" ] || {
|
||||
mm_log "err" "No 'device' for object '$object' not found..."
|
||||
return 1
|
||||
}
|
||||
|
||||
sysfspath=$(modemmanager_get_field "${modemstatus}" "modem.generic.physdev")
|
||||
[ -n "${sysfspath}" ] || {
|
||||
mm_log "err" "No 'sysfspath' for object '$object' not found..."
|
||||
return 2
|
||||
}
|
||||
|
||||
mm_log "debug" "add object '$object' to monitore cache (device=${device},sysfspath=${sysfspath})"
|
||||
|
||||
# On monitor add event, store event details in cache (if not exists yet)
|
||||
grep -qs "${sysfspath}" "${MODEMMANAGER_MONITOR_CACHE}" || \
|
||||
echo "${object} ${device} ${sysfspath}" >> "${MODEMMANAGER_MONITOR_CACHE}"
|
||||
|
||||
cfg=$(mm_get_modem_config "${device}")
|
||||
if [ -n "${cfg}" ]; then
|
||||
mm_log "info" "interface '${cfg}' set '${device}' state available"
|
||||
proto_set_available "${cfg}" 1
|
||||
fi
|
||||
}
|
||||
|
||||
mm_monitor_cache_del() {
|
||||
local object="$1"
|
||||
|
||||
mm_monitor_cache_remove "$object"
|
||||
}
|
||||
|
||||
mm_monitor_cache() {
|
||||
local line="$1"
|
||||
local event object modemstatus device pyhsdev
|
||||
|
||||
event="$(echo "$line" | cut -d " " -f 1)"
|
||||
object="$(echo "$line" | cut -d " " -f 2)"
|
||||
|
||||
case "$event" in
|
||||
"(+)")
|
||||
mm_monitor_cache_add "$object"
|
||||
;;
|
||||
"(-)")
|
||||
mm_monitor_cache_del "$object"
|
||||
;;
|
||||
esac
|
||||
}
|
||||
|
||||
main() {
|
||||
|
||||
local n=60
|
||||
local step=1
|
||||
local mmrunning=0
|
||||
|
||||
trap_with_arg func_trap INT TERM KILL
|
||||
|
||||
mkdir -p "${MODEMMANAGER_RUNDIR}"
|
||||
chmod 0755 "${MODEMMANAGER_RUNDIR}"
|
||||
|
||||
# Wait for ModemManager to be available in the bus
|
||||
while [ $n -ge 0 ]; do
|
||||
sleep $step
|
||||
mm_log "info" "Checking if ModemManager is available..."
|
||||
|
||||
if ! /usr/bin/mmcli -L >/dev/null 2>&1; then
|
||||
mm_log "info" "ModemManager not yet available"
|
||||
else
|
||||
mmrunning=1
|
||||
break
|
||||
fi
|
||||
n=$((n-step))
|
||||
done
|
||||
|
||||
[ ${mmrunning} -eq 1 ] || {
|
||||
mm_log "error" "couldn't report initial kernel events: ModemManager not running"
|
||||
return
|
||||
}
|
||||
|
||||
/usr/bin/mmcli -M | {
|
||||
local line
|
||||
while read -r line; do
|
||||
mm_log "debug" "Monitor cache line: ${line}"
|
||||
mm_monitor_cache "$line"
|
||||
done
|
||||
} &
|
||||
CHILD="$!"
|
||||
|
||||
wait $CHILD
|
||||
}
|
||||
|
||||
main "$@"
|
||||
|
|
@ -1,5 +1,7 @@
|
|||
#!/bin/sh
|
||||
|
||||
. /usr/share/ModemManager/modemmanager.common
|
||||
|
||||
trap_with_arg() {
|
||||
func="$1" ; shift
|
||||
for sig ; do
|
||||
|
|
@ -14,8 +16,6 @@ func_trap() {
|
|||
}
|
||||
|
||||
main() {
|
||||
. /usr/share/ModemManager/modemmanager.common
|
||||
|
||||
trap_with_arg func_trap INT TERM KILL
|
||||
|
||||
mkdir -p "${MODEMMANAGER_RUNDIR}"
|
||||
|
|
@ -27,9 +27,6 @@ main() {
|
|||
mm_report_events_from_cache
|
||||
|
||||
wait "$CHILD"
|
||||
|
||||
# Set all configured interfaces as unavailable
|
||||
mm_cleanup_interfaces
|
||||
}
|
||||
|
||||
main "$@"
|
||||
|
|
|
|||
Loading…
Reference in a new issue