Current File : //usr/share/ModemManager/fcc-unlock.available.d/105b
#!/bin/sh
# SPDX-License-Identifier: CC0-1.0
# 2021 Aleksander Morgado <aleksander@aleksander.es>
# 2022 Thilo-Alexander Ginkel <thilo@ginkel.com>
# 2022 Bjørn Mork <bjorn@mork.no>
#
# Foxconn SDX55 (Lenovo T99W175) FCC unlock operation
#
# The script will first try to unlock the WWAN modem using the new (hash-based)
# v2 method and fall back to the old (v1) method if that fails
#
# require program name and at least 2 arguments
[ $# -lt 2 ] && exit 1
# first argument is DBus path, not needed here
shift
# second and next arguments are control port names
for PORT in "$@"; do
# match port type in Linux 5.14 and newer
grep -q MBIM "/sys/class/wwan/$PORT/type" 2>/dev/null && {
MBIM_PORT=$PORT
break
}
# match port name in Linux 5.13
echo "$PORT" | grep -q MBIM && {
MBIM_PORT=$PORT
break
}
done
# fail if no MBIM port exposed
[ -n "$MBIM_PORT" ] || exit 2
log_v2_failure() {
echo "$1. Falling back to old unlock method" >&2
}
FIRMWARE_VERSION=$(qmicli --device-open-proxy --device="/dev/$MBIM_PORT" \
--dms-foxconn-get-firmware-version=firmware-mcfg \
| grep "Version:" \
| grep -o "'.*'" \
| sed "s/'//g" \
| sed -e 's/\.[^.]*\.[^.]*$//')
if [ -n "${FIRMWARE_VERSION}" ]; then
FIRMWARE_APPS_VERSION=$(qmicli --device-open-proxy --device="/dev/$MBIM_PORT" \
--dms-foxconn-get-firmware-version=apps \
| grep "Version:" \
| grep -o "'.*'" \
| sed "s/'//g")
if [ -n "${FIRMWARE_APPS_VERSION}" ]; then
IMEI=$(qmicli --device-open-proxy --device="/dev/$MBIM_PORT" --dms-get-ids \
| grep "IMEI:" \
| grep -o "'.*'" \
| sed "s/'//g")
if [ -n "${IMEI}" ]; then
SALT="salt" # use a static salt for now
MAGIC="foxc"
HASH="${SALT}$(printf "%s%s%s%s%s" "${FIRMWARE_VERSION}" \
"${FIRMWARE_APPS_VERSION}" "${IMEI}" "${SALT}" "${MAGIC}" \
| md5sum \
| head -c 32)"
else
log_v2_failure "Could not determine SDX55 IMEI"
fi
else
log_v2_failure "Could not determine SDX55 firmware apps version"
fi
else
log_v2_failure "Could not determine SDX55 firmware version"
fi
UNLOCK_RESULT=1
if [ -n "${HASH}" ]; then
qmicli --device-open-proxy --device="/dev/$MBIM_PORT" \
--dms-foxconn-set-fcc-authentication-v2="${HASH},48"
UNLOCK_RESULT=$?
if [ $UNLOCK_RESULT -ne 0 ]; then
log_v2_failure "SDX55 FCC unlock v2 failed"
fi
fi
if [ $UNLOCK_RESULT -ne 0 ]; then
qmicli --device-open-proxy --device="/dev/$MBIM_PORT" \
--dms-foxconn-set-fcc-authentication=0
UNLOCK_RESULT=$?
if [ $UNLOCK_RESULT -ne 0 ]; then
echo "SDX55 FCC unlock v1 failed" >&2
fi
fi
exit $UNLOCK_RESULT
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