1aea4c1cea20dda7ae7e85fc8924a2d784f70d806Alex Deymo// 2aea4c1cea20dda7ae7e85fc8924a2d784f70d806Alex Deymo// Copyright (C) 2015 The Android Open Source Project 3aea4c1cea20dda7ae7e85fc8924a2d784f70d806Alex Deymo// 4aea4c1cea20dda7ae7e85fc8924a2d784f70d806Alex Deymo// Licensed under the Apache License, Version 2.0 (the "License"); 5aea4c1cea20dda7ae7e85fc8924a2d784f70d806Alex Deymo// you may not use this file except in compliance with the License. 6aea4c1cea20dda7ae7e85fc8924a2d784f70d806Alex Deymo// You may obtain a copy of the License at 7aea4c1cea20dda7ae7e85fc8924a2d784f70d806Alex Deymo// 8aea4c1cea20dda7ae7e85fc8924a2d784f70d806Alex Deymo// http://www.apache.org/licenses/LICENSE-2.0 9aea4c1cea20dda7ae7e85fc8924a2d784f70d806Alex Deymo// 10aea4c1cea20dda7ae7e85fc8924a2d784f70d806Alex Deymo// Unless required by applicable law or agreed to in writing, software 11aea4c1cea20dda7ae7e85fc8924a2d784f70d806Alex Deymo// distributed under the License is distributed on an "AS IS" BASIS, 12aea4c1cea20dda7ae7e85fc8924a2d784f70d806Alex Deymo// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13aea4c1cea20dda7ae7e85fc8924a2d784f70d806Alex Deymo// See the License for the specific language governing permissions and 14aea4c1cea20dda7ae7e85fc8924a2d784f70d806Alex Deymo// limitations under the License. 15aea4c1cea20dda7ae7e85fc8924a2d784f70d806Alex Deymo// 16f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymo 17f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymo#include "update_engine/payload_generator/payload_generation_config.h" 18f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymo 19a26432a8fe5981ca1bb41cb6aacddfc3765666acAlex Deymo#include <base/logging.h> 20a26432a8fe5981ca1bb41cb6aacddfc3765666acAlex Deymo 2139910dcd1d68987ccee7c3031dc269233a8490bbAlex Deymo#include "update_engine/common/utils.h" 2239910dcd1d68987ccee7c3031dc269233a8490bbAlex Deymo#include "update_engine/payload_consumer/delta_performer.h" 23f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymo#include "update_engine/payload_generator/delta_diff_generator.h" 24dcbc0ae6a5c48b40a1bc7d3c2ed62ec2a9fe7748Sen Jiang#include "update_engine/payload_generator/delta_diff_utils.h" 25b42b98db059a12c44110588fc0b3d5f82d32a2f8Alex Deymo#include "update_engine/payload_generator/ext2_filesystem.h" 2620bdc70e540e021c4a26553dfdbfd2fabe8ea432Alex Deymo#include "update_engine/payload_generator/mapfile_filesystem.h" 27b42b98db059a12c44110588fc0b3d5f82d32a2f8Alex Deymo#include "update_engine/payload_generator/raw_filesystem.h" 28f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymo 29f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymonamespace chromeos_update_engine { 30f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymo 3105feee0fc8f4f10b425f04e1f5cdd4831bbfb969Sen Jiangbool PostInstallConfig::IsEmpty() const { 325b91c6b141970c2b0095775a61e3f941417aa1ffAlex Deymo return !run && path.empty() && filesystem_type.empty() && !optional; 3305feee0fc8f4f10b425f04e1f5cdd4831bbfb969Sen Jiang} 3405feee0fc8f4f10b425f04e1f5cdd4831bbfb969Sen Jiang 3535589c2b9a0e20b42661b132890128d8025c1954Alex Deymobool PartitionConfig::ValidateExists() const { 3635589c2b9a0e20b42661b132890128d8025c1954Alex Deymo TEST_AND_RETURN_FALSE(!path.empty()); 3735589c2b9a0e20b42661b132890128d8025c1954Alex Deymo TEST_AND_RETURN_FALSE(utils::FileExists(path.c_str())); 3835589c2b9a0e20b42661b132890128d8025c1954Alex Deymo TEST_AND_RETURN_FALSE(size > 0); 39f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymo // The requested size is within the limits of the file. 4035589c2b9a0e20b42661b132890128d8025c1954Alex Deymo TEST_AND_RETURN_FALSE(static_cast<off_t>(size) <= 4135589c2b9a0e20b42661b132890128d8025c1954Alex Deymo utils::FileSize(path.c_str())); 42f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymo return true; 43f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymo} 44f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymo 45b42b98db059a12c44110588fc0b3d5f82d32a2f8Alex Deymobool PartitionConfig::OpenFilesystem() { 46b42b98db059a12c44110588fc0b3d5f82d32a2f8Alex Deymo if (path.empty()) 47b42b98db059a12c44110588fc0b3d5f82d32a2f8Alex Deymo return true; 48b42b98db059a12c44110588fc0b3d5f82d32a2f8Alex Deymo fs_interface.reset(); 49dcbc0ae6a5c48b40a1bc7d3c2ed62ec2a9fe7748Sen Jiang if (diff_utils::IsExtFilesystem(path)) { 50b42b98db059a12c44110588fc0b3d5f82d32a2f8Alex Deymo fs_interface = Ext2Filesystem::CreateFromFile(path); 51dcbc0ae6a5c48b40a1bc7d3c2ed62ec2a9fe7748Sen Jiang // TODO(deymo): The delta generator algorithm doesn't support a block size 52dcbc0ae6a5c48b40a1bc7d3c2ed62ec2a9fe7748Sen Jiang // different than 4 KiB. Remove this check once that's fixed. b/26972455 5320bdc70e540e021c4a26553dfdbfd2fabe8ea432Alex Deymo if (fs_interface) { 54dcbc0ae6a5c48b40a1bc7d3c2ed62ec2a9fe7748Sen Jiang TEST_AND_RETURN_FALSE(fs_interface->GetBlockSize() == kBlockSize); 5520bdc70e540e021c4a26553dfdbfd2fabe8ea432Alex Deymo return true; 5620bdc70e540e021c4a26553dfdbfd2fabe8ea432Alex Deymo } 57b42b98db059a12c44110588fc0b3d5f82d32a2f8Alex Deymo } 58b42b98db059a12c44110588fc0b3d5f82d32a2f8Alex Deymo 5920bdc70e540e021c4a26553dfdbfd2fabe8ea432Alex Deymo if (!mapfile_path.empty()) { 6020bdc70e540e021c4a26553dfdbfd2fabe8ea432Alex Deymo fs_interface = MapfileFilesystem::CreateFromFile(path, mapfile_path); 6120bdc70e540e021c4a26553dfdbfd2fabe8ea432Alex Deymo if (fs_interface) { 6220bdc70e540e021c4a26553dfdbfd2fabe8ea432Alex Deymo TEST_AND_RETURN_FALSE(fs_interface->GetBlockSize() == kBlockSize); 6320bdc70e540e021c4a26553dfdbfd2fabe8ea432Alex Deymo return true; 6420bdc70e540e021c4a26553dfdbfd2fabe8ea432Alex Deymo } 65b42b98db059a12c44110588fc0b3d5f82d32a2f8Alex Deymo } 6620bdc70e540e021c4a26553dfdbfd2fabe8ea432Alex Deymo 6720bdc70e540e021c4a26553dfdbfd2fabe8ea432Alex Deymo // Fall back to a RAW filesystem. 6820bdc70e540e021c4a26553dfdbfd2fabe8ea432Alex Deymo TEST_AND_RETURN_FALSE(size % kBlockSize == 0); 6920bdc70e540e021c4a26553dfdbfd2fabe8ea432Alex Deymo fs_interface = RawFilesystem::Create( 7020bdc70e540e021c4a26553dfdbfd2fabe8ea432Alex Deymo "<" + name + "-partition>", kBlockSize, size / kBlockSize); 71b42b98db059a12c44110588fc0b3d5f82d32a2f8Alex Deymo return true; 72b42b98db059a12c44110588fc0b3d5f82d32a2f8Alex Deymo} 73b42b98db059a12c44110588fc0b3d5f82d32a2f8Alex Deymo 74f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymobool ImageConfig::ValidateIsEmpty() const { 75f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymo TEST_AND_RETURN_FALSE(ImageInfoIsEmpty()); 76981eb1151f42480ea10cb5283ab2108454a16c92Sen Jiang return partitions.empty(); 77f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymo} 78f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymo 79f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymobool ImageConfig::LoadImageSize() { 80981eb1151f42480ea10cb5283ab2108454a16c92Sen Jiang for (PartitionConfig& part : partitions) { 81981eb1151f42480ea10cb5283ab2108454a16c92Sen Jiang if (part.path.empty()) 82981eb1151f42480ea10cb5283ab2108454a16c92Sen Jiang continue; 83981eb1151f42480ea10cb5283ab2108454a16c92Sen Jiang part.size = utils::FileSize(part.path); 84981eb1151f42480ea10cb5283ab2108454a16c92Sen Jiang } 85f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymo return true; 86f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymo} 87f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymo 8805feee0fc8f4f10b425f04e1f5cdd4831bbfb969Sen Jiangbool ImageConfig::LoadPostInstallConfig(const brillo::KeyValueStore& store) { 8905feee0fc8f4f10b425f04e1f5cdd4831bbfb969Sen Jiang bool found_postinstall = false; 9005feee0fc8f4f10b425f04e1f5cdd4831bbfb969Sen Jiang for (PartitionConfig& part : partitions) { 9105feee0fc8f4f10b425f04e1f5cdd4831bbfb969Sen Jiang bool run_postinstall; 9205feee0fc8f4f10b425f04e1f5cdd4831bbfb969Sen Jiang if (!store.GetBoolean("RUN_POSTINSTALL_" + part.name, &run_postinstall) || 9305feee0fc8f4f10b425f04e1f5cdd4831bbfb969Sen Jiang !run_postinstall) 9405feee0fc8f4f10b425f04e1f5cdd4831bbfb969Sen Jiang continue; 9505feee0fc8f4f10b425f04e1f5cdd4831bbfb969Sen Jiang found_postinstall = true; 9605feee0fc8f4f10b425f04e1f5cdd4831bbfb969Sen Jiang part.postinstall.run = true; 9705feee0fc8f4f10b425f04e1f5cdd4831bbfb969Sen Jiang store.GetString("POSTINSTALL_PATH_" + part.name, &part.postinstall.path); 9805feee0fc8f4f10b425f04e1f5cdd4831bbfb969Sen Jiang store.GetString("FILESYSTEM_TYPE_" + part.name, 9905feee0fc8f4f10b425f04e1f5cdd4831bbfb969Sen Jiang &part.postinstall.filesystem_type); 1005b91c6b141970c2b0095775a61e3f941417aa1ffAlex Deymo store.GetBoolean("POSTINSTALL_OPTIONAL_" + part.name, 1015b91c6b141970c2b0095775a61e3f941417aa1ffAlex Deymo &part.postinstall.optional); 10205feee0fc8f4f10b425f04e1f5cdd4831bbfb969Sen Jiang } 10305feee0fc8f4f10b425f04e1f5cdd4831bbfb969Sen Jiang if (!found_postinstall) { 10405feee0fc8f4f10b425f04e1f5cdd4831bbfb969Sen Jiang LOG(ERROR) << "No valid postinstall config found."; 10505feee0fc8f4f10b425f04e1f5cdd4831bbfb969Sen Jiang return false; 10605feee0fc8f4f10b425f04e1f5cdd4831bbfb969Sen Jiang } 10705feee0fc8f4f10b425f04e1f5cdd4831bbfb969Sen Jiang return true; 10805feee0fc8f4f10b425f04e1f5cdd4831bbfb969Sen Jiang} 10905feee0fc8f4f10b425f04e1f5cdd4831bbfb969Sen Jiang 110f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymobool ImageConfig::ImageInfoIsEmpty() const { 111f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymo return image_info.board().empty() 112f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymo && image_info.key().empty() 113f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymo && image_info.channel().empty() 114f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymo && image_info.version().empty() 115f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymo && image_info.build_channel().empty() 116f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymo && image_info.build_version().empty(); 117f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymo} 118f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymo 119a4073ef63482fd08c3678982f7d153360b088094Alex DeymoPayloadVersion::PayloadVersion(uint64_t major_version, uint32_t minor_version) { 120a4073ef63482fd08c3678982f7d153360b088094Alex Deymo major = major_version; 121a4073ef63482fd08c3678982f7d153360b088094Alex Deymo minor = minor_version; 122a4073ef63482fd08c3678982f7d153360b088094Alex Deymo} 123a4073ef63482fd08c3678982f7d153360b088094Alex Deymo 124a4073ef63482fd08c3678982f7d153360b088094Alex Deymobool PayloadVersion::Validate() const { 125a4073ef63482fd08c3678982f7d153360b088094Alex Deymo TEST_AND_RETURN_FALSE(major == kChromeOSMajorPayloadVersion || 126a4073ef63482fd08c3678982f7d153360b088094Alex Deymo major == kBrilloMajorPayloadVersion); 127a4073ef63482fd08c3678982f7d153360b088094Alex Deymo TEST_AND_RETURN_FALSE(minor == kFullPayloadMinorVersion || 128a4073ef63482fd08c3678982f7d153360b088094Alex Deymo minor == kInPlaceMinorPayloadVersion || 129a4073ef63482fd08c3678982f7d153360b088094Alex Deymo minor == kSourceMinorPayloadVersion || 130a4073ef63482fd08c3678982f7d153360b088094Alex Deymo minor == kOpSrcHashMinorPayloadVersion || 131a4073ef63482fd08c3678982f7d153360b088094Alex Deymo minor == kImgdiffMinorPayloadVersion); 132a4073ef63482fd08c3678982f7d153360b088094Alex Deymo return true; 133a4073ef63482fd08c3678982f7d153360b088094Alex Deymo} 134a4073ef63482fd08c3678982f7d153360b088094Alex Deymo 135a4073ef63482fd08c3678982f7d153360b088094Alex Deymobool PayloadVersion::OperationAllowed(InstallOperation_Type operation) const { 136a4073ef63482fd08c3678982f7d153360b088094Alex Deymo switch (operation) { 137a4073ef63482fd08c3678982f7d153360b088094Alex Deymo // Full operations: 138a4073ef63482fd08c3678982f7d153360b088094Alex Deymo case InstallOperation::REPLACE: 139a4073ef63482fd08c3678982f7d153360b088094Alex Deymo case InstallOperation::REPLACE_BZ: 140a4073ef63482fd08c3678982f7d153360b088094Alex Deymo // These operations were included in the original payload format. 141a4073ef63482fd08c3678982f7d153360b088094Alex Deymo return true; 142a4073ef63482fd08c3678982f7d153360b088094Alex Deymo 143a4073ef63482fd08c3678982f7d153360b088094Alex Deymo case InstallOperation::REPLACE_XZ: 144a4073ef63482fd08c3678982f7d153360b088094Alex Deymo // These operations are included in the major version used in Brillo, but 145a4073ef63482fd08c3678982f7d153360b088094Alex Deymo // can also be used with minor version 3 or newer. 146a4073ef63482fd08c3678982f7d153360b088094Alex Deymo return major == kBrilloMajorPayloadVersion || 147a4073ef63482fd08c3678982f7d153360b088094Alex Deymo minor >= kOpSrcHashMinorPayloadVersion; 148a4073ef63482fd08c3678982f7d153360b088094Alex Deymo 1490497d05764dcae38e7a7419a2f25eff043172850Alex Deymo case InstallOperation::ZERO: 1500497d05764dcae38e7a7419a2f25eff043172850Alex Deymo case InstallOperation::DISCARD: 1510497d05764dcae38e7a7419a2f25eff043172850Alex Deymo // The implementation of these operations had a bug in earlier versions 1520497d05764dcae38e7a7419a2f25eff043172850Alex Deymo // that prevents them from being used in any payload. We will enable 1530497d05764dcae38e7a7419a2f25eff043172850Alex Deymo // them for delta payloads for now. 1540497d05764dcae38e7a7419a2f25eff043172850Alex Deymo return minor >= kImgdiffMinorPayloadVersion; 1550497d05764dcae38e7a7419a2f25eff043172850Alex Deymo 156a4073ef63482fd08c3678982f7d153360b088094Alex Deymo // Delta operations: 157a4073ef63482fd08c3678982f7d153360b088094Alex Deymo case InstallOperation::MOVE: 158a4073ef63482fd08c3678982f7d153360b088094Alex Deymo case InstallOperation::BSDIFF: 159a4073ef63482fd08c3678982f7d153360b088094Alex Deymo // MOVE and BSDIFF were replaced by SOURCE_COPY and SOURCE_BSDIFF and 160a4073ef63482fd08c3678982f7d153360b088094Alex Deymo // should not be used in newer delta versions, since the idempotent checks 161a4073ef63482fd08c3678982f7d153360b088094Alex Deymo // were removed. 162a4073ef63482fd08c3678982f7d153360b088094Alex Deymo return minor == kInPlaceMinorPayloadVersion; 163a4073ef63482fd08c3678982f7d153360b088094Alex Deymo 164a4073ef63482fd08c3678982f7d153360b088094Alex Deymo case InstallOperation::SOURCE_COPY: 165a4073ef63482fd08c3678982f7d153360b088094Alex Deymo case InstallOperation::SOURCE_BSDIFF: 166a4073ef63482fd08c3678982f7d153360b088094Alex Deymo return minor >= kSourceMinorPayloadVersion; 167a4073ef63482fd08c3678982f7d153360b088094Alex Deymo 168a4073ef63482fd08c3678982f7d153360b088094Alex Deymo case InstallOperation::IMGDIFF: 169a4073ef63482fd08c3678982f7d153360b088094Alex Deymo return minor >= kImgdiffMinorPayloadVersion && imgdiff_allowed; 170a4073ef63482fd08c3678982f7d153360b088094Alex Deymo } 171a4073ef63482fd08c3678982f7d153360b088094Alex Deymo return false; 172a4073ef63482fd08c3678982f7d153360b088094Alex Deymo} 173a4073ef63482fd08c3678982f7d153360b088094Alex Deymo 174a4073ef63482fd08c3678982f7d153360b088094Alex Deymobool PayloadVersion::IsDelta() const { 175a4073ef63482fd08c3678982f7d153360b088094Alex Deymo return minor != kFullPayloadMinorVersion; 176a4073ef63482fd08c3678982f7d153360b088094Alex Deymo} 177a4073ef63482fd08c3678982f7d153360b088094Alex Deymo 178a4073ef63482fd08c3678982f7d153360b088094Alex Deymobool PayloadVersion::InplaceUpdate() const { 179a4073ef63482fd08c3678982f7d153360b088094Alex Deymo return minor == kInPlaceMinorPayloadVersion; 180a4073ef63482fd08c3678982f7d153360b088094Alex Deymo} 181a4073ef63482fd08c3678982f7d153360b088094Alex Deymo 182f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymobool PayloadGenerationConfig::Validate() const { 183a4073ef63482fd08c3678982f7d153360b088094Alex Deymo TEST_AND_RETURN_FALSE(version.Validate()); 184a4073ef63482fd08c3678982f7d153360b088094Alex Deymo TEST_AND_RETURN_FALSE(version.IsDelta() == is_delta); 185f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymo if (is_delta) { 186981eb1151f42480ea10cb5283ab2108454a16c92Sen Jiang for (const PartitionConfig& part : source.partitions) { 187981eb1151f42480ea10cb5283ab2108454a16c92Sen Jiang if (!part.path.empty()) { 188981eb1151f42480ea10cb5283ab2108454a16c92Sen Jiang TEST_AND_RETURN_FALSE(part.ValidateExists()); 189981eb1151f42480ea10cb5283ab2108454a16c92Sen Jiang TEST_AND_RETURN_FALSE(part.size % block_size == 0); 190981eb1151f42480ea10cb5283ab2108454a16c92Sen Jiang } 19105feee0fc8f4f10b425f04e1f5cdd4831bbfb969Sen Jiang // Source partition should not have postinstall. 19205feee0fc8f4f10b425f04e1f5cdd4831bbfb969Sen Jiang TEST_AND_RETURN_FALSE(part.postinstall.IsEmpty()); 193f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymo } 194f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymo 195f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymo // If new_image_info is present, old_image_info must be present. 196f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymo TEST_AND_RETURN_FALSE(source.ImageInfoIsEmpty() == 197f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymo target.ImageInfoIsEmpty()); 198f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymo } else { 199f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymo // All the "source" image fields must be empty for full payloads. 200f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymo TEST_AND_RETURN_FALSE(source.ValidateIsEmpty()); 201f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymo } 202f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymo 203f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymo // In all cases, the target image must exists. 204981eb1151f42480ea10cb5283ab2108454a16c92Sen Jiang for (const PartitionConfig& part : target.partitions) { 205981eb1151f42480ea10cb5283ab2108454a16c92Sen Jiang TEST_AND_RETURN_FALSE(part.ValidateExists()); 206981eb1151f42480ea10cb5283ab2108454a16c92Sen Jiang TEST_AND_RETURN_FALSE(part.size % block_size == 0); 207a4073ef63482fd08c3678982f7d153360b088094Alex Deymo if (version.minor == kInPlaceMinorPayloadVersion && 208981eb1151f42480ea10cb5283ab2108454a16c92Sen Jiang part.name == kLegacyPartitionNameRoot) 209981eb1151f42480ea10cb5283ab2108454a16c92Sen Jiang TEST_AND_RETURN_FALSE(rootfs_partition_size >= part.size); 210a4073ef63482fd08c3678982f7d153360b088094Alex Deymo if (version.major == kChromeOSMajorPayloadVersion) 21105feee0fc8f4f10b425f04e1f5cdd4831bbfb969Sen Jiang TEST_AND_RETURN_FALSE(part.postinstall.IsEmpty()); 212981eb1151f42480ea10cb5283ab2108454a16c92Sen Jiang } 213f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymo 2142d3b2d635e50c6886e285afb86c3187d9e0bd360Alex Deymo TEST_AND_RETURN_FALSE(hard_chunk_size == -1 || 2152d3b2d635e50c6886e285afb86c3187d9e0bd360Alex Deymo hard_chunk_size % block_size == 0); 2162d3b2d635e50c6886e285afb86c3187d9e0bd360Alex Deymo TEST_AND_RETURN_FALSE(soft_chunk_size % block_size == 0); 2179b244df41f1bdaddd87b7dbd8e1559556059ed1bAlex Deymo 2189b244df41f1bdaddd87b7dbd8e1559556059ed1bAlex Deymo TEST_AND_RETURN_FALSE(rootfs_partition_size % block_size == 0); 2199b244df41f1bdaddd87b7dbd8e1559556059ed1bAlex Deymo 220f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymo return true; 221f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymo} 222f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymo 223f1cbe1783dd025bd7243a8df12f20548196cc023Alex Deymo} // namespace chromeos_update_engine 224