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/*
* Copyright (c) 2017 Cisco and/or its affiliates.
* 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.
*/
#include "icnet_ccnx_network_message.h"
namespace icnet {
namespace ccnx {
TransportMessage::TransportMessage()
: packet_length_(0) {
}
const uint8_t *TransportMessage::data() const {
return data_;
}
uint8_t *TransportMessage::data() {
return data_;
}
std::size_t TransportMessage::length() const {
return packet_length_;
}
const uint8_t *TransportMessage::body() const {
return data_ + header_length;
}
uint8_t *TransportMessage::body() {
return data_ + header_length;
}
std::size_t TransportMessage::bodyLength() const {
return packet_length_ - header_length;
}
void TransportMessage::bodyLength(std::size_t new_length) {
packet_length_ = new_length;
if (packet_length_ > max_packet_length) {
packet_length_ = max_packet_length;
}
}
bool TransportMessage::decodeHeader() {
// General checks
uint8_t message_version = data_[0];
if (message_version != 1) {
std::cerr << "Illegal packet version " << message_version << std::endl;
return false;
}
// Get packet length
packet_length_ = data_[2];
packet_length_ <<= 8;
packet_length_ |= data_[3];
return true;
}
CCNxMetaMessage *TransportMessage::decodeMessage() {
std::size_t total_length = packet_length_;
PARCBuffer *buffer = parcBuffer_CreateFromArray((void *) data_, total_length);
buffer = parcBuffer_Flip(buffer);
CCNxMetaMessage *ret = ccnxMetaMessage_CreateFromWireFormatBuffer(buffer);
parcBuffer_Release((PARCBuffer **) &buffer);
return ret;
}
} // end namespace ccnx
} // end namespace icnet
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