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modemmanager: move generally applicable functions to modemmanager.common

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These moved functions are general functions. This is a preparatory
commit so that these moved functions can also be used in other
ModemManager scripts.

Signed-off-by: Florian Eckert <fe@dev.tdt.de>
This commit is contained in:
Florian Eckert 2024-01-17 10:58:15 +01:00
parent 620afc1806
commit 39e084ca6b
3 changed files with 68 additions and 69 deletions
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3
net/modemmanager/files/10-report-down
View File

@ -16,9 +16,8 @@ STATE="$4"
[ "${STATE}" = "disconnected" ] || exit 0
. /usr/share/ModemManager/modemmanager.common
. /lib/netifd/netifd-proto.sh
INCLUDE_ONLY=1 . /lib/netifd/proto/modemmanager.sh
. /usr/share/ModemManager/modemmanager.common
MODEM_STATUS=$(mmcli --modem="${MODEM_PATH}" --output-keyvalue)
[ -n "${MODEM_STATUS}" ] || exit 1

67
net/modemmanager/files/modemmanager.common
View File

@ -6,7 +6,6 @@
. /lib/functions.sh
. /lib/netifd/netifd-proto.sh
INCLUDE_ONLY=1 . /lib/netifd/proto/modemmanager.sh
################################################################################
# Runtime state
@ -351,3 +350,69 @@ mm_report_events_from_cache() {
mm_report_event_from_cache_line "${event_line}"
done < ${MODEMMANAGER_EVENTS_CACHE}
}
# This method expects as first argument a list of key-value pairs, as returned by mmcli --output-keyvalue
# The second argument must be exactly the name of the field to read
#
# Sample output:
# $ mmcli -m 0 -K
# modem.dbus-path : /org/freedesktop/ModemManager1/Modem/0
# modem.generic.device-identifier : ed6eff2e3e0f90463da1c2a755b2acacd1335752
# modem.generic.manufacturer : Dell Inc.
# modem.generic.model : DW5821e Snapdragon X20 LTE
# modem.generic.revision : T77W968.F1.0.0.4.0.GC.009\n026
# modem.generic.carrier-configuration : GCF
# modem.generic.carrier-configuration-revision : 08E00009
# modem.generic.hardware-revision : DW5821e Snapdragon X20 LTE
# ....
modemmanager_get_field() {
local list=$1
local field=$2
local value=""
[ -z "${list}" ] || [ -z "${field}" ] && return
# there is always at least a whitespace after each key, and we use that as part of the
# key matching we do (e.g. to avoid getting 'modem.generic.state-failed-reason' as a result
# when grepping for 'modem.generic.state'.
line=$(echo "${list}" | grep "${field} ")
value=$(echo ${line#*:})
# not found?
[ -n "${value}" ] || return 2
# only print value if set
[ "${value}" != "--" ] && echo "${value}"
return 0
}
# build a comma-separated list of values from the list
modemmanager_get_multivalue_field() {
local list=$1
local field=$2
local value=""
local length idx item
[ -z "${list}" ] || [ -z "${field}" ] && return
length=$(modemmanager_get_field "${list}" "${field}.length")
[ -n "${length}" ] || return 0
[ "$length" -ge 1 ] || return 0
idx=1
while [ $idx -le "$length" ]; do
item=$(modemmanager_get_field "${list}" "${field}.value\[$idx\]")
[ -n "${item}" ] && [ "${item}" != "--" ] && {
[ -n "${value}" ] && value="${value}, "
value="${value}${item}"
}
idx=$((idx + 1))
done
# nothing built?
[ -n "${value}" ] || return 2
# only print value if set
echo "${value}"
return 0
}

67
net/modemmanager/files/modemmanager.proto
View File

@ -8,6 +8,7 @@
. /lib/functions.sh
. ../netifd-proto.sh
. ./ppp.sh
. /usr/share/ModemManager/modemmanager.common
init_proto "$@"
}
@ -24,72 +25,6 @@ cdr2mask ()
echo "${1-0}"."${2-0}"."${3-0}"."${4-0}"
}
# This method expects as first argument a list of key-value pairs, as returned by mmcli --output-keyvalue
# The second argument must be exactly the name of the field to read
#
# Sample output:
# $ mmcli -m 0 -K
# modem.dbus-path : /org/freedesktop/ModemManager1/Modem/0
# modem.generic.device-identifier : ed6eff2e3e0f90463da1c2a755b2acacd1335752
# modem.generic.manufacturer : Dell Inc.
# modem.generic.model : DW5821e Snapdragon X20 LTE
# modem.generic.revision : T77W968.F1.0.0.4.0.GC.009\n026
# modem.generic.carrier-configuration : GCF
# modem.generic.carrier-configuration-revision : 08E00009
# modem.generic.hardware-revision : DW5821e Snapdragon X20 LTE
# ....
modemmanager_get_field() {
local list=$1
local field=$2
local value=""
[ -z "${list}" ] || [ -z "${field}" ] && return
# there is always at least a whitespace after each key, and we use that as part of the
# key matching we do (e.g. to avoid getting 'modem.generic.state-failed-reason' as a result
# when grepping for 'modem.generic.state'.
line=$(echo "${list}" | grep "${field} ")
value=$(echo ${line#*:})
# not found?
[ -n "${value}" ] || return 2
# only print value if set
[ "${value}" != "--" ] && echo "${value}"
return 0
}
# build a comma-separated list of values from the list
modemmanager_get_multivalue_field() {
local list=$1
local field=$2
local value=""
local length idx item
[ -z "${list}" ] || [ -z "${field}" ] && return
length=$(modemmanager_get_field "${list}" "${field}.length")
[ -n "${length}" ] || return 0
[ "$length" -ge 1 ] || return 0
idx=1
while [ $idx -le "$length" ]; do
item=$(modemmanager_get_field "${list}" "${field}.value\[$idx\]")
[ -n "${item}" ] && [ "${item}" != "--" ] && {
[ -n "${value}" ] && value="${value}, "
value="${value}${item}"
}
idx=$((idx + 1))
done
# nothing built?
[ -n "${value}" ] || return 2
# only print value if set
echo "${value}"
return 0
}
modemmanager_cleanup_connection() {
local modemstatus="$1"