mirror of
https://github.com/mfontanini/libtins
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116 lines
3.1 KiB
C++
116 lines
3.1 KiB
C++
/*
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* Copyright (c) 2012, Matias Fontanini
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following disclaimer
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* in the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#ifdef TINS_DEBUG
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#include <cassert>
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#endif
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#include "pdu.h"
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#include "rawpdu.h"
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#include "packet_sender.h"
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namespace Tins {
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PDU::PDU()
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: _inner_pdu()
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{
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}
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PDU::PDU(const PDU &other) : _inner_pdu(0) {
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copy_inner_pdu(other);
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}
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PDU &PDU::operator=(const PDU &other) {
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copy_inner_pdu(other);
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return *this;
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}
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PDU::~PDU() {
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delete _inner_pdu;
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}
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void PDU::copy_inner_pdu(const PDU &pdu) {
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if(pdu.inner_pdu())
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inner_pdu(pdu.inner_pdu()->clone());
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}
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uint32_t PDU::size() const {
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uint32_t sz = header_size() + trailer_size();
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const PDU *ptr(_inner_pdu);
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while(ptr) {
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sz += ptr->header_size() + ptr->trailer_size();
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ptr = ptr->inner_pdu();
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}
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return sz;
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}
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void PDU::send(PacketSender &, const NetworkInterface &) {
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}
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PDU *PDU::recv_response(PacketSender &, const NetworkInterface &) {
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return 0;
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}
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void PDU::inner_pdu(PDU *next_pdu) {
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delete _inner_pdu;
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_inner_pdu = next_pdu;
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}
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void PDU::inner_pdu(const PDU &next_pdu) {
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inner_pdu(next_pdu.clone());
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}
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PDU *PDU::release_inner_pdu() {
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PDU *result = 0;
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std::swap(result, _inner_pdu);
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return result;
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}
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PDU::serialization_type PDU::serialize() {
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std::vector<uint8_t> buffer(size());
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serialize(&buffer[0], buffer.size(), 0);
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// Copy elision, do your magic
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return buffer;
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}
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void PDU::serialize(uint8_t *buffer, uint32_t total_sz, const PDU *parent) {
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uint32_t sz = header_size() + trailer_size();
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/* Must not happen... */
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#ifdef TINS_DEBUG
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assert(total_sz >= sz);
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#endif
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prepare_for_serialize(parent);
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if(_inner_pdu)
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_inner_pdu->serialize(buffer + header_size(), total_sz - sz, this);
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write_serialization(buffer, total_sz, parent);
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}
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}
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