#!/bin/bash
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# Copyright (C) 2018 The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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#
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if [[ -z ${ANDROID_BUILD_TOP} ]]; then
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echo "You need to source and lunch before you can use this script"
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exit 1
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fi
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echo "Running test"
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set -e # fail early
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source ${ANDROID_BUILD_TOP}/build/envsetup.sh
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m -j apexer
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export APEXER_TOOL_PATH="${ANDROID_BUILD_TOP}/out/soong/host/linux-x86/bin:${ANDROID_BUILD_TOP}/prebuilts/sdk/tools/linux/bin"
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PATH+=":${ANDROID_BUILD_TOP}/prebuilts/sdk/tools/linux/bin"
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input_dir=$(mktemp -d)
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output_dir=$(mktemp -d)
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function finish {
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sudo umount /dev/loop10
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sudo losetup --detach /dev/loop10
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rm -rf ${input_dir}
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rm -rf ${output_dir}
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}
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trap finish EXIT
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#############################################
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# prepare the inputs
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#############################################
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# Create the input directory having 3 files with random bits and a symlink from
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# ${input_dir}/sym1 -> ${input_dir}/file1
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head -c 1M </dev/urandom > ${input_dir}/file1
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head -c 1M </dev/urandom > ${input_dir}/file2
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mkdir ${input_dir}/sub
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head -c 1M </dev/urandom > ${input_dir}/sub/file3
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ln -s file1 ${input_dir}/sym1
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# Create the APEX manifest file
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manifest_file=$(mktemp)
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echo '{"name": "com.android.example.apex", "version": 1}' > ${manifest_file}
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# Create the file_contexts file
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file_contexts_file=$(mktemp)
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echo '
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(/.*)? u:object_r:root_file:s0
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/sub(/.*)? u:object_r:sub_file:s0
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/sub/file3 u:object_r:file3_file:s0
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' > ${file_contexts_file}
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canned_fs_config_file=$(mktemp)
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echo '/ 1000 1000 0644
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/apex_manifest.json 1000 1000 0644
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/file1 1001 1001 0644
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/file2 1001 1001 0644
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/sub 1002 1002 0644
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/sub/file3 1003 1003 0644
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/sym1 1001 1001 0644' > ${canned_fs_config_file}
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output_file=${output_dir}/test.apex
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#############################################
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# run the tool
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#############################################
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${ANDROID_HOST_OUT}/bin/apexer --verbose --manifest ${manifest_file} \
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--file_contexts ${file_contexts_file} \
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--canned_fs_config ${canned_fs_config_file} \
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--key ${ANDROID_BUILD_TOP}/system/apex/apexer/testdata/com.android.example.apex.pem \
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${input_dir} ${output_file}
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#############################################
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# check the result
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#############################################
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offset=$(zipalign -v -c 4096 ${output_file} | grep apex_payload.img | tr -s ' ' | cut -d ' ' -f 2)
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unzip ${output_file} apex_payload.img -d ${output_dir}
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size=$(avbtool info_image --image ${output_dir}/apex_payload.img | awk '/Image size:/{print $3}')
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# test if it is mountable
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mkdir ${output_dir}/mnt
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sudo losetup -o ${offset} --sizelimit ${size} /dev/loop10 ${output_file}
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sudo mount -o ro /dev/loop10 ${output_dir}/mnt
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unzip ${output_file} apex_manifest.json -d ${output_dir}
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# verify vbmeta
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avbtool verify_image --image ${output_dir}/apex_payload.img \
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--key ${ANDROID_BUILD_TOP}/system/apex/apexer/testdata/com.android.example.apex.pem
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# check the contents
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sudo diff ${manifest_file} ${output_dir}/mnt/apex_manifest.json
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sudo diff ${manifest_file} ${output_dir}/apex_manifest.json
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sudo diff ${input_dir}/file1 ${output_dir}/mnt/file1
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sudo diff ${input_dir}/file2 ${output_dir}/mnt/file2
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sudo diff ${input_dir}/sub/file3 ${output_dir}/mnt/sub/file3
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[ `sudo readlink ${output_dir}/mnt/sym1` = "file1" ]
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# check the uid/gid/type/mod
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[ `sudo stat -c '%u,%g,%A' ${output_dir}/mnt/file1` = "1001,1001,-rw-r--r--" ]
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[ `sudo stat -c '%u,%g,%A' ${output_dir}/mnt/file2` = "1001,1001,-rw-r--r--" ]
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[ `sudo stat -c '%u,%g,%A' ${output_dir}/mnt/sub` = "1002,1002,drw-r--r--" ]
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[ `sudo stat -c '%u,%g,%A' ${output_dir}/mnt/sub/file3` = "1003,1003,-rw-r--r--" ]
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[ `sudo stat -c '%u,%g,%A' ${output_dir}/mnt/sym1` = "1001,1001,lrw-r--r--" ]
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[ `sudo stat -c '%u,%g,%A' ${output_dir}/mnt/apex_manifest.json` = "1000,1000,-rw-r--r--" ]
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# check the selinux labels
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[ `sudo ls -Z ${output_dir}/mnt/file1 | cut -d ' ' -f 1` = "u:object_r:root_file:s0" ]
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[ `sudo ls -Z ${output_dir}/mnt/file2 | cut -d ' ' -f 1` = "u:object_r:root_file:s0" ]
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[ `sudo ls -d -Z ${output_dir}/mnt/sub/ | cut -d ' ' -f 1` = "u:object_r:sub_file:s0" ]
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[ `sudo ls -Z ${output_dir}/mnt/sub/file3 | cut -d ' ' -f 1` = "u:object_r:file3_file:s0" ]
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[ `sudo ls -Z ${output_dir}/mnt/apex_manifest.json | cut -d ' ' -f 1` = "u:object_r:root_file:s0" ]
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[ `sudo ls -Z ${output_dir}/mnt/sym1 | cut -d ' ' -f 1` = "u:object_r:root_file:s0" ]
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# check the android manifest
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aapt dump xmltree ${output_file} AndroidManifest.xml
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echo Passed
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