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fcc-unlock: add support for new Lenovo T99W175 SDX55 FCC unlock method

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Tested w/ Lenovo firmware T99W175.F0.1.0.0.9.DT.003.055 (old unlock method) and
T99W175.F0.1.0.0.9.DT.003.079 (new unlock method)
This commit is contained in:
Thilo-Alexander Ginkel
2022-05-29 20:40:51 +02:00
committed by Aleksander Morgado
parent 9fa1b32e34
commit ac06052b97
2 changed files with 70 additions and 5 deletions
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2
configure.ac
View File

@@ -410,7 +410,7 @@ dnl-----------------------------------------------------------------------------
dnl QMI support (enabled by default)
dnl
LIBQMI_VERSION=1.31.4
LIBQMI_VERSION=1.31.7
AC_ARG_WITH(qmi, AS_HELP_STRING([--without-qmi], [Build without QMI support]), [], [with_qmi=yes])
AM_CONDITIONAL(WITH_QMI, test "x$with_qmi" = "xyes")

73
data/dispatcher-fcc-unlock/105b
View File

@@ -2,8 +2,13 @@
# 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 FCC unlock operation
# 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
@@ -29,6 +34,66 @@ done
# fail if no MBIM port exposed
[ -n "$MBIM_PORT" ] || exit 2
# run qmicli operation over MBIM
qmicli --device-open-proxy --device="/dev/$MBIM_PORT" --dms-foxconn-set-fcc-authentication=0
exit $?
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