1 /* 2 * Copyright 2019 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #pragma once 18 19 #include <cstdint> 20 #include <vector> 21 22 #include "hci/address.h" 23 #include "packet/bit_inserter.h" 24 #include "packet/packet_builder.h" 25 26 namespace bluetooth { 27 namespace packet { 28 29 class RawBuilder : public PacketBuilder<true> { 30 public: 31 RawBuilder() = default; 32 explicit RawBuilder(size_t max_bytes); 33 explicit RawBuilder(std::vector<uint8_t> vec); 34 virtual ~RawBuilder() = default; 35 36 virtual size_t size() const override; 37 38 virtual void Serialize(BitInserter& it) const; 39 40 // Add |address| to the payload. Return true if: 41 // - the new size of the payload is still <= |max_bytes_| 42 bool AddAddress(const hci::Address& address); 43 44 // Return true if |num_bytes| can be added to the payload. 45 bool CanAddOctets(size_t num_bytes) const; 46 47 // Add |octets| bytes to the payload. Return true if: 48 // - the size of |bytes| is equal to |octets| and 49 // - the new size of the payload is still <= |max_bytes_| 50 bool AddOctets(size_t octets, const std::vector<uint8_t>& bytes); 51 52 bool AddOctets(const std::vector<uint8_t>& bytes); 53 54 bool AddOctets1(uint8_t value); 55 bool AddOctets2(uint16_t value); 56 bool AddOctets3(uint32_t value); 57 bool AddOctets4(uint32_t value); 58 bool AddOctets6(uint64_t value); 59 bool AddOctets8(uint64_t value); 60 61 private: 62 // Add |octets| bytes to the payload. Return true if: 63 // - the value of |value| fits in |octets| bytes and 64 // - the new size of the payload is still <= |max_bytes_| 65 bool AddOctets(size_t octets, uint64_t value); 66 67 size_t max_bytes_{0xffff}; 68 69 // Underlying containers for storing the actual packet 70 std::vector<uint8_t> payload_; 71 }; 72 73 } // namespace packet 74 } // namespace bluetooth 75