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#!/bin/bash
# Copyright 2021 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
TEMPDIRS=""
TEMPFILES=""
# Script under test
SUT=$PWD/usb_network.sh
TEST_STATUS="OK"
test_setup() {
echo -n "Testing $1 ..."
FAKE_CONFIGFS=$(mktemp -d)
TEMPDIRS="${TEMPDIRS} ${FAKE_CONFIGFS}"
FAKE_GADGETFS=$FAKE_CONFIGFS/usb_gadget
mkdir -p "$FAKE_GADGETFS"
}
test_teardown() {
echo ${TEST_STATUS}
if test -n "$TEMPDIRS"; then
rm -rf ${TEMPDIRS}
fi
if test -n "$TEMPFILES"; then
rm -f $TEMPFILES
fi
}
test_fail() {
echo -n " $@ " >&2
TEST_STATUS="FAIL"
test_teardown
exit 1
}
check_file_content() {
local filename="$1"
local expected_content="$2"
if ! test -f "${filename}"; then
test_fail "File ${filename} does not exist!"
fi
local actual_content=$(cat ${filename})
if [[ $expected_content != $actual_content ]]; then
test_fail "Expected ${expected_content}, got ${actual_content}"
fi
}
test_gadget_creation_with_defaults() {
local extra_args=()
local gadget_dir="$1"
if [[ $gadget_dir == "" ]]; then
gadget_dir="g1";
else
extra_args=(${extra_args} --gadget-dir-name "${gadget_dir}")
fi
local product_name="Souvenier BMC"
local product_id="0xcafe"
local host_mac="ab:cd:ef:10:11:12"
local dev_mac="12:11:10:ef:cd:ab"
local bind_device="f80002000.udc"
CONFIGFS_HOME=${FAKE_CONFIGFS} ${SUT} --product-id "${product_id}" \
--product-name "${product_name}" \
--host-mac "${host_mac}" \
--dev-mac "${dev_mac}" \
--bind-device "${bind_device}" \
${extra_args[@]}
if test $? -ne 0; then
test_fail "${SUT} failed"
fi
if ! test -d "${FAKE_GADGETFS}/${gadget_dir}"; then
test_fail "Gadget was not created!"
fi
check_file_content ${FAKE_GADGETFS}/${gadget_dir}/idVendor "0x18d1"
check_file_content ${FAKE_GADGETFS}/${gadget_dir}/idProduct "${product_id}"
check_file_content ${FAKE_GADGETFS}/${gadget_dir}/strings/0x409/manufacturer "Google"
check_file_content ${FAKE_GADGETFS}/${gadget_dir}/strings/0x409/product "${product_name}"
check_file_content ${FAKE_GADGETFS}/${gadget_dir}/configs/c.1/MaxPower "100"
check_file_content ${FAKE_GADGETFS}/${gadget_dir}/configs/c.1/strings/0x409/configuration "ECM"
check_file_content ${FAKE_GADGETFS}/${gadget_dir}/functions/ecm.usb0/dev_addr "${dev_mac}"
check_file_content ${FAKE_GADGETFS}/${gadget_dir}/functions/ecm.usb0/host_addr "${host_mac}"
if ! test -d ${FAKE_GADGETFS}/${gadget_dir}/functions/ecm.usb0; then
test_fail "Function directory was not created"
fi
local func_link="${FAKE_GADGETFS}/${gadget_dir}/configs/c.1/ecm.usb0"
if ! test -L "${func_link}"; then
test_fail "Symlink to the function was not created in the config"
fi
local link_dest=$(realpath ${func_link})
if [[ $link_dest != ${FAKE_GADGETFS}/${gadget_dir}/functions/ecm.usb0 ]]; then
test_fail "Symlink points to the wrong file/dir"
fi
check_file_content ${FAKE_GADGETFS}/${gadget_dir}/UDC "${bind_device}"
}
test_gadget_creation_with_override() {
mkdir -p ${FAKE_GADGETFS}/g1/{strings,configs,functions}
touch ${FAKE_GADGETFS}/g1/{idVendor,idProduct}
test_gadget_creation_with_defaults
}
test_gadget_stopping() {
local extra_args=()
local gadget_dir="$1"
local iface_name="$2"
if [[ $gadget_dir == "" ]]; then
gadget_dir="g1";
else
extra_args=(${extra_args} --gadget-dir-name "${gadget_dir}")
fi
if [[ $iface_name == "" ]]; then
iface_name="usb0";
else
extra_args=(${extra_args} --iface-name "${iface_name}")
fi
CONFIGFS_HOME=${FAKE_CONFIGFS} ${SUT} ${extra_args[@]} stop
if test -d "${FAKE_GADGETFS}/${gadget_dir}"; then
test_fail "Gadget was not removed!"
fi
}
test_gadget_creation_no_macs() {
local gadget_dir="g1";
local product_name="Souvenier BMC"
local product_id="0xcafe"
local bind_device="f80002000.udc"
CONFIGFS_HOME=${FAKE_CONFIGFS} ${SUT} --product-id "${product_id}" \
--product-name "${product_name}" \
--bind-device "${bind_device}"
if test $? -ne 0; then
test_fail "${SUT} failed"
fi
if ! test -d "${FAKE_GADGETFS}/${gadget_dir}"; then
test_fail "Gadget was not created!"
fi
check_file_content ${FAKE_GADGETFS}/${gadget_dir}/idVendor "0x18d1"
check_file_content ${FAKE_GADGETFS}/${gadget_dir}/idProduct "${product_id}"
check_file_content ${FAKE_GADGETFS}/${gadget_dir}/strings/0x409/manufacturer "Google"
check_file_content ${FAKE_GADGETFS}/${gadget_dir}/strings/0x409/product "${product_name}"
check_file_content ${FAKE_GADGETFS}/${gadget_dir}/configs/c.1/MaxPower "100"
check_file_content ${FAKE_GADGETFS}/${gadget_dir}/configs/c.1/strings/0x409/configuration "ECM"
if test -e ${FAKE_GADGETFS}/${gadget_dir}/functions/ecm.usb0/dev_addr; then
test_fail "dev_addr should not be set"
fi
if test -e ${FAKE_GADGETFS}/${gadget_dir}/functions/ecm.usb0/host_addr; then
test_fail "host_addr should not be set"
fi
local func_link="${FAKE_GADGETFS}/${gadget_dir}/configs/c.1/ecm.usb0"
if ! test -L "${func_link}"; then
test_fail "Symlink to the function was not created in the config"
fi
local link_dest=$(realpath ${func_link})
if [[ $link_dest != ${FAKE_GADGETFS}/${gadget_dir}/functions/ecm.usb0 ]]; then
test_fail "Symlink points to the wrong file/dir"
fi
check_file_content ${FAKE_GADGETFS}/${gadget_dir}/UDC "${bind_device}"
}
test_gadget_creation_alt_iface() {
local gadget_dir="g1";
local product_name="Souvenier BMC"
local product_id="0xcafe"
local bind_device="f80002000.udc"
local iface_name="iface0"
CONFIGFS_HOME=${FAKE_CONFIGFS} ${SUT} --product-id "${product_id}" \
--product-name "${product_name}" \
--bind-device "${bind_device}" \
--iface-name "${iface_name}"
if test $? -ne 0; then
test_fail "${SUT} failed"
fi
if ! test -d "${FAKE_GADGETFS}/${gadget_dir}"; then
test_fail "Gadget was not created!"
fi
check_file_content ${FAKE_GADGETFS}/${gadget_dir}/idVendor "0x18d1"
check_file_content ${FAKE_GADGETFS}/${gadget_dir}/idProduct "${product_id}"
check_file_content ${FAKE_GADGETFS}/${gadget_dir}/strings/0x409/manufacturer "Google"
check_file_content ${FAKE_GADGETFS}/${gadget_dir}/strings/0x409/product "${product_name}"
check_file_content ${FAKE_GADGETFS}/${gadget_dir}/configs/c.1/MaxPower "100"
check_file_content ${FAKE_GADGETFS}/${gadget_dir}/configs/c.1/strings/0x409/configuration "ECM"
if ! test -d ${FAKE_GADGETFS}/${gadget_dir}/functions/ecm.${iface_name}; then
test_fail "Function directory was not created"
fi
if test -e ${FAKE_GADGETFS}/${gadget_dir}/functions/ecm.${iface_name}/dev_addr; then
test_fail "dev_addr should not be set"
fi
if test -e ${FAKE_GADGETFS}/${gadget_dir}/functions/ecm.${iface_name}/host_addr; then
test_fail "host_addr should not be set"
fi
local func_link="${FAKE_GADGETFS}/${gadget_dir}/configs/c.1/ecm.${iface_name}"
if ! test -L "${func_link}"; then
test_fail "Symlink to the function was not created in the config"
fi
local link_dest=$(realpath ${func_link})
if [[ $link_dest != ${FAKE_GADGETFS}/${gadget_dir}/functions/ecm.${iface_name} ]]; then
test_fail "Symlink points to the wrong file/dir"
fi
check_file_content ${FAKE_GADGETFS}/${gadget_dir}/UDC "${bind_device}"
}
# -------------------------------------------------------------------
test_setup "Device Creation"
test_gadget_creation_with_defaults
test_teardown
# -------------------------------------------------------------------
# -------------------------------------------------------------------
test_setup "Device Creation With Override"
test_gadget_creation_with_override
test_teardown
# -------------------------------------------------------------------
# -------------------------------------------------------------------
test_setup "Test Device Stop"
test_gadget_creation_with_defaults
test_gadget_stopping
test_teardown
# -------------------------------------------------------------------
# -------------------------------------------------------------------
test_setup "Device Creation/Stopping, Alternative Name"
test_gadget_creation_with_defaults "gAlt"
test_gadget_stopping "gAlt"
test_teardown
# -------------------------------------------------------------------
# -------------------------------------------------------------------
test_setup "Device Creation without MAC Addrs"
test_gadget_creation_no_macs
test_teardown
# -------------------------------------------------------------------
# -------------------------------------------------------------------
test_setup "Device Creation/Stopping, Alternative Interface"
test_gadget_creation_alt_iface
test_teardown
# -------------------------------------------------------------------
echo "SUCCESS!"
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