5e6c4e9a91
The non-A/B package installation is subject to TOC/TOU flaw if the attacker can switch the package in the middle of installation. And the most pratical case is to store the package on an external device, e.g. a sdcard, and swap the device in the middle. To prevent that, we can adopt the same protection as used in sideloading a package with FUSE. Specifically, when we install the package with FUSE, we read the entire package to cryptographically verify its signature. The hash for each transfer block is recorded in the memory (TOC), and the subsequent reads (TOU) will be rejected upon dectecting a mismatch. This CL forces the package installation with FUSE when the package stays on a removable media. Bug: 136498130 Test: Run bin/recovery --update_package with various paths; and packages are installed from FUSE as expected Test: recovery_component_test - all passing Change-Id: Ibc9b095036a2fa624e8edf6c347ed4f12aef072f Merged-In: Ibc9b095036a2fa624e8edf6c347ed4f12aef072f
205 lines
3.7 KiB
Text
205 lines
3.7 KiB
Text
// 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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cc_defaults {
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name: "recovery_defaults",
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cflags: [
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"-D_FILE_OFFSET_BITS=64",
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// Must be the same as RECOVERY_API_VERSION.
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"-DRECOVERY_API_VERSION=3",
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"-Wall",
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"-Werror",
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],
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}
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cc_library_static {
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name: "librecovery_fastboot",
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recovery_available: true,
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defaults: [
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"recovery_defaults",
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],
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srcs: [
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"fastboot/fastboot.cpp",
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],
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shared_libs: [
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"libbase",
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"libbootloader_message",
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"libcutils",
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"liblog",
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"librecovery_ui",
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],
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static_libs: [
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"librecovery_ui_default",
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],
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}
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cc_defaults {
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name: "librecovery_defaults",
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defaults: [
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"recovery_defaults",
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],
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shared_libs: [
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"android.hardware.boot@1.0",
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"android.hardware.boot@1.1",
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"libbase",
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"libbootloader_message",
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"libcrypto",
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"libcutils",
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"libfs_mgr",
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"liblp",
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"liblog",
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"libprotobuf-cpp-lite",
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"libziparchive",
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],
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static_libs: [
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"libc++fs",
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"libinstall",
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"librecovery_fastboot",
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"libminui",
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"librecovery_utils",
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"libotautil",
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"libsnapshot_nobinder",
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],
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}
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cc_library_static {
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name: "librecovery",
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recovery_available: true,
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defaults: [
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"librecovery_defaults",
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],
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srcs: [
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"fsck_unshare_blocks.cpp",
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"recovery.cpp",
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],
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shared_libs: [
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"libfusesideload",
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"librecovery_ui",
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],
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}
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prebuilt_etc {
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name: "init_recovery.rc",
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filename: "init.rc",
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src: "etc/init.rc",
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sub_dir: "init/hw",
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recovery: true,
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}
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cc_binary {
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name: "recovery",
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recovery: true,
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defaults: [
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"libinstall_defaults",
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"librecovery_defaults",
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"librecovery_utils_defaults",
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],
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srcs: [
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"recovery_main.cpp",
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],
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shared_libs: [
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"librecovery_ui",
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],
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static_libs: [
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"librecovery",
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"librecovery_ui_default",
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],
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required: [
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"e2fsdroid.recovery",
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"init_recovery.rc",
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"librecovery_ui_ext",
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"minadbd",
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"mke2fs.conf.recovery",
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"mke2fs.recovery",
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"recovery_deps",
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"ueventd.rc.recovery",
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],
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}
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// The dynamic executable that runs after /data mounts.
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cc_binary {
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name: "recovery-persist",
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defaults: [
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"recovery_defaults",
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],
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srcs: [
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"recovery-persist.cpp",
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],
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shared_libs: [
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"libbase",
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"liblog",
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],
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static_libs: [
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"librecovery_utils",
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],
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init_rc: [
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"recovery-persist.rc",
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],
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}
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// The dynamic executable that runs at init.
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cc_binary {
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name: "recovery-refresh",
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defaults: [
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"recovery_defaults",
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],
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srcs: [
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"recovery-refresh.cpp",
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],
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shared_libs: [
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"libbase",
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"liblog",
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],
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static_libs: [
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"librecovery_utils",
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],
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init_rc: [
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"recovery-refresh.rc",
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],
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}
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filegroup {
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name: "res-testdata",
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srcs: [
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"res-*/images/*_text.png",
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],
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}
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