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91 lines
2.7 KiB
91 lines
2.7 KiB
/*
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* Copyright (C) 2020 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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#pragma once
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#include <android-base/logging.h>
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#include <json/json.h>
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#include <sys/socket.h>
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#include <sys/types.h>
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#include <algorithm>
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#include <cstdint>
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#include <map>
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#include <memory>
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#include <optional>
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#include <string>
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namespace cuttlefish {
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/// Defines operations supported by allocd
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enum class RequestType : uint16_t {
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Invalid = 0, // Invalid Request
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ID, // Allocate and return a new Session ID
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CreateInterface, // Request to create new network interface
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DestroyInterface, // Request to destroy a managed network interface
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StopSession, // Request all resources within a session be released
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Shutdown, // request allocd to shutdown and clean up all resources
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};
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/// Defines interface types supported by allocd
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enum class IfaceType : uint16_t {
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Invalid = 0, // an invalid interface
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mtap, // mobile tap
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wtap, // wireless tap
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etap, // ethernet tap
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wbr, // wireless bridge
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ebr // ethernet bridge
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};
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enum class RequestStatus : uint16_t {
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Invalid = 0, // Invalid status
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Pending, // Request which has not been attempted
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Success, // Request was satisfied
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Failure // Request failed
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};
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/// Defines the format for allocd Request messages
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struct RequestHeader {
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uint16_t version; /// used to differentiate between allocd feature sets
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uint16_t len; /// length in bytes of the message payload
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};
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/// Provides a wrapper around libjson's Reader to additionally log errors
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class JsonRequestReader {
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public:
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JsonRequestReader() = default;
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~JsonRequestReader() = default;
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std::optional<Json::Value> parse(std::string msg) {
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Json::Value ret;
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std::unique_ptr<Json::CharReader> reader(reader_builder.newCharReader());
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std::string errorMessage;
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if (!reader->parse(&*msg.begin(), &*msg.end(), &ret, &errorMessage)) {
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LOG(WARNING) << "Received invalid JSON object in input channel: "
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<< errorMessage;
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LOG(INFO) << "Invalid JSON: " << msg;
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return std::nullopt;
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}
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return ret;
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}
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private:
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Json::CharReaderBuilder reader_builder;
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};
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} // namespace cuttlefish
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