| /* |
| * Copyright (C) 2017 The Android Open Source Project |
| * |
| * 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. |
| */ |
| |
| #define LOG_TAG "libvintf" |
| |
| #include "HalManifest.h" |
| |
| #include <dirent.h> |
| |
| #include <fstream> |
| #include <iostream> |
| #include <sstream> |
| #include <mutex> |
| |
| #include <android-base/logging.h> |
| |
| #include "parse_string.h" |
| #include "parse_xml.h" |
| #include "CompatibilityMatrix.h" |
| |
| namespace android { |
| namespace vintf { |
| |
| constexpr Version HalManifest::kVersion; |
| |
| bool HalManifest::add(ManifestHal &&hal) { |
| if (!hal.isValid()) { |
| return false; |
| } |
| mHals.emplace(hal.name, std::move(hal)); |
| return true; |
| } |
| |
| std::set<std::string> HalManifest::getHalNames() const { |
| std::set<std::string> names{}; |
| for (const auto &hal : mHals) { |
| names.insert(hal.first); |
| } |
| return names; |
| } |
| |
| std::set<std::string> HalManifest::getInterfaceNames(const std::string &name) const { |
| std::set<std::string> interfaceNames{}; |
| for (const ManifestHal *hal : getHals(name)) { |
| for (const auto &iface : hal->interfaces) { |
| interfaceNames.insert(iface.first); |
| } |
| } |
| return interfaceNames; |
| } |
| |
| ManifestHal *HalManifest::getAnyHal(const std::string &name) { |
| auto it = mHals.find(name); |
| if (it == mHals.end()) { |
| return nullptr; |
| } |
| return &(it->second); |
| } |
| |
| std::vector<const ManifestHal *> HalManifest::getHals(const std::string &name) const { |
| std::vector<const ManifestHal *> ret; |
| auto range = mHals.equal_range(name); |
| for (auto it = range.first; it != range.second; ++it) { |
| ret.push_back(&it->second); |
| } |
| return ret; |
| } |
| |
| Transport HalManifest::getTransport(const std::string &package, const Version &v, |
| const std::string &interfaceName, const std::string &instanceName) const { |
| |
| for (const ManifestHal *hal : getHals(package)) { |
| if (std::find(hal->versions.begin(), hal->versions.end(), v) == hal->versions.end()) { |
| LOG(INFO) << "HalManifest::getTransport(" << to_string(mType) << "): Cannot find " |
| << to_string(v) << " in supported versions of " << package; |
| continue; |
| } |
| auto it = hal->interfaces.find(interfaceName); |
| if (it == hal->interfaces.end()) { |
| LOG(INFO) << "HalManifest::getTransport(" << to_string(mType) << "): Cannot find interface '" |
| << interfaceName << "' in " << package << "@" << to_string(v); |
| continue; |
| } |
| const auto &instances = it->second.instances; |
| if (instances.find(instanceName) == instances.end()) { |
| LOG(INFO) << "HalManifest::getTransport(" << to_string(mType) << "): Cannot find instance '" |
| << instanceName << "' in " |
| << package << "@" << to_string(v) << "::" << interfaceName; |
| continue; |
| } |
| return hal->transportArch.transport; |
| } |
| LOG(INFO) << "HalManifest::getTransport(" << to_string(mType) << "): Cannot get transport for " |
| << package << "@" << v << "::" << interfaceName << "/" << instanceName; |
| return Transport::EMPTY; |
| |
| } |
| |
| ConstMultiMapValueIterable<std::string, ManifestHal> HalManifest::getHals() const { |
| return ConstMultiMapValueIterable<std::string, ManifestHal>(mHals); |
| } |
| |
| std::set<Version> HalManifest::getSupportedVersions(const std::string &name) const { |
| std::set<Version> ret; |
| for (const ManifestHal *hal : getHals(name)) { |
| ret.insert(hal->versions.begin(), hal->versions.end()); |
| } |
| return ret; |
| } |
| |
| |
| std::set<std::string> HalManifest::getInstances( |
| const std::string &halName, const std::string &interfaceName) const { |
| std::set<std::string> ret; |
| for (const ManifestHal *hal : getHals(halName)) { |
| auto it = hal->interfaces.find(interfaceName); |
| if (it != hal->interfaces.end()) { |
| ret.insert(it->second.instances.begin(), it->second.instances.end()); |
| } |
| } |
| return ret; |
| } |
| |
| bool HalManifest::hasInstance(const std::string &halName, |
| const std::string &interfaceName, const std::string &instanceName) const { |
| const auto &instances = getInstances(halName, interfaceName); |
| return instances.find(instanceName) != instances.end(); |
| } |
| |
| static bool isCompatible(const MatrixHal &matrixHal, const ManifestHal &manifestHal) { |
| if (matrixHal.format != manifestHal.format) { |
| return false; |
| } |
| for (const Version &manifestVersion : manifestHal.versions) { |
| for (const VersionRange &matrixVersionRange : matrixHal.versionRanges) { |
| // If Compatibility Matrix says 2.5-2.7, the "2.7" is purely informational; |
| // the framework can work with all 2.5-2.infinity. |
| if (matrixVersionRange.supportedBy(manifestVersion)) { |
| return true; |
| } |
| } |
| } |
| return false; |
| } |
| |
| // For each hal in mat, there must be a hal in manifest that supports this. |
| std::vector<std::string> HalManifest::checkIncompatibility(const CompatibilityMatrix &mat, |
| bool includeOptional) const { |
| std::vector<std::string> incompatible; |
| for (const MatrixHal &matrixHal : mat.getHals()) { |
| if (!includeOptional && matrixHal.optional) { |
| continue; |
| } |
| // don't check optional; put it in the incompatibility list as well. |
| const std::string &name = matrixHal.name; |
| bool matrixHalSupported = false; |
| for (const ManifestHal *manifestHal : getHals(name)) { |
| matrixHalSupported = isCompatible(matrixHal, *manifestHal); |
| if (matrixHalSupported) { |
| break; |
| } |
| } |
| if (!matrixHalSupported) { |
| incompatible.push_back(name); |
| } |
| } |
| return incompatible; |
| } |
| |
| bool HalManifest::checkCompatibility(const CompatibilityMatrix &mat, std::string *error) const { |
| if (mType == mat.mType) { |
| if (error != nullptr) { |
| *error = "Wrong type; checking " + to_string(mType) + " manifest against " |
| + to_string(mat.mType) + " compatibility matrix"; |
| } |
| return false; |
| } |
| std::vector<std::string> incompatibleHals = |
| checkIncompatibility(mat, false /* includeOptional */); |
| if (!incompatibleHals.empty()) { |
| if (error != nullptr) { |
| *error = "HALs incompatible."; |
| for (const auto &name : incompatibleHals) { |
| *error += " " + name; |
| } |
| } |
| return false; |
| } |
| if (mType == SchemaType::FRAMEWORK) { |
| // TODO(b/36400653) enable this. It is disabled since vndk is not yet defined. |
| #ifdef VINTF_CHECK_VNDK |
| bool match = false; |
| const auto &matVndk = mat.device.mVndk; |
| for (const auto &vndk : framework.mVndks) { |
| if (!vndk.mVersionRange.in(matVndk.mVersionRange)) { |
| continue; |
| } |
| // version matches, check libaries |
| std::vector<std::string> diff; |
| std::set_difference(matVndk.mLibraries.begin(), matVndk.mLibraries.end(), |
| vndk.mLibraries.begin(), vndk.mLibraries.end(), |
| std::inserter(diff, diff.begin())) |
| if (!diff.empty()) { |
| if (error != nullptr) { |
| *error = "Vndk libs incompatible."; |
| for (const auto &name : diff) { |
| *error += " " + name; |
| } |
| } |
| return false; |
| } |
| match = true; |
| break; |
| } |
| if (!match) { |
| if (error != nullptr) { |
| *error = "Vndk version " + to_string(matVndk.mVersionRange) + " is not supported."; |
| } |
| } |
| #endif |
| } else if (mType == SchemaType::DEVICE) { |
| bool match = false; |
| for (const auto &range : mat.framework.mSepolicy.sepolicyVersions()) { |
| if (range.supportedBy(device.mSepolicyVersion)) { |
| match = true; |
| break; |
| } |
| } |
| if (!match) { |
| if (error != nullptr) { |
| *error = "Sepolicy version " + to_string(device.mSepolicyVersion) |
| + " doesn't satisify the requirements."; |
| } |
| return false; |
| } |
| } |
| |
| return true; |
| } |
| |
| status_t HalManifest::fetchAllInformation(const std::string &path) { |
| std::ifstream in; |
| in.open(path); |
| if (!in.is_open()) { |
| LOG(WARNING) << "Cannot open " << path; |
| return INVALID_OPERATION; |
| } |
| std::stringstream ss; |
| ss << in.rdbuf(); |
| bool success = gHalManifestConverter(this, ss.str()); |
| if (!success) { |
| LOG(ERROR) << "Illformed vendor manifest: " << path << ": " |
| << gHalManifestConverter.lastError(); |
| return BAD_VALUE; |
| } |
| return OK; |
| } |
| |
| bool operator==(const HalManifest &lft, const HalManifest &rgt) { |
| return lft.mType == rgt.mType && |
| lft.mHals == rgt.mHals && |
| (lft.mType != SchemaType::DEVICE || ( |
| lft.device.mSepolicyVersion == rgt.device.mSepolicyVersion)) && |
| (lft.mType != SchemaType::FRAMEWORK || ( |
| lft.framework.mVndks == rgt.framework.mVndks)); |
| } |
| |
| } // namespace vintf |
| } // namespace android |
