config: Install FRP wipe script into recovery /system/bin

    system/%/libfuse-lite.so \

    system/%/libntfs-3g.so

# FRP

PRODUCT_COPY_FILES += \

    vendor/lineage/prebuilt/common/bin/wipe-frp.sh:$(TARGET_COPY_OUT_RECOVERY)/root/system/bin/wipe-frp

# Openssh

PRODUCT_PACKAGES += \

    scp \

#!/system/bin/sh

#

# SPDX-FileCopyrightText: 2025 The LineageOS Project

# SPDX-License-Identifier: Apache-2.0

#

FRP_BLOCK=$(getprop ro.frp.pst)

if [[ -z "${FRP_BLOCK}" ]]; then

    echo "FRP prop not set"

    exit -1

fi

FRP_BLOCK_SIZE=$(blockdev --getsize64 "${FRP_BLOCK}")

if [[ "${FRP_BLOCK_SIZE}" -le 0 ]]; then

    echo "FRP block size <= 0"

    exit -1

fi

# Calculate offsets

DIGEST_SIZE=32

DIGEST_OFFSET=0

FRP_OEM_UNLOCK_SIZE=1

FRP_OEM_UNLOCK_OFFSET=$((${FRP_BLOCK_SIZE} - 1))

FRP_CREDENTIAL_RESERVED_SIZE=1000

FRP_CREDENTIAL_RESERVED_OFFSET=$((${FRP_OEM_UNLOCK_OFFSET} - ${FRP_CREDENTIAL_RESERVED_SIZE}))

TEST_MODE_RESERVED_SIZE=10000

TEST_MODE_RESERVED_OFFSET=$((${FRP_CREDENTIAL_RESERVED_OFFSET} - ${TEST_MODE_RESERVED_SIZE}))

FRP_SECRET_SIZE=32

FRP_SECRET_OFFSET=$((${TEST_MODE_RESERVED_OFFSET} - ${FRP_SECRET_SIZE}))

FRP_SECRET_MAGIC_SIZE=8

FRP_SECRET_MAGIC_OFFSET=$((${FRP_SECRET_OFFSET} - ${FRP_SECRET_MAGIC_SIZE}))

# Clear digest

dd if=/dev/zero of="${FRP_BLOCK}" \

   seek="${DIGEST_OFFSET}" \

   count="${DIGEST_SIZE}" \

   bs=1

# Clear credential storage

dd if=/dev/zero of="${FRP_BLOCK}" \

   seek="${FRP_CREDENTIAL_RESERVED_OFFSET}" \

   count="${FRP_CREDENTIAL_RESERVED_SIZE}" \

   bs=1

# Clear FRP secret

dd if=/dev/zero of="${FRP_BLOCK}" \

   seek="${FRP_SECRET_OFFSET}" \

   count="${FRP_SECRET_SIZE}" \

   bs=1

# Write default FRP secret magic

printf "\xDA\xC2\xFC\xCD\xB9\x1B\x09\x88" | dd of="${FRP_BLOCK}" \

    seek="${FRP_SECRET_MAGIC_OFFSET}" \

    count="${FRP_SECRET_MAGIC_SIZE}" \

    bs=1

# Write digest

sha256sum -b "${FRP_BLOCK}" | xxd -r -p | dd of="${FRP_BLOCK}" \

    seek="${DIGEST_OFFSET}" \

    count="${DIGEST_SIZE}" \

    bs=1