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-rw-r--r--libtransport/src/hicn/transport/core/packet.cc607
1 files changed, 0 insertions, 607 deletions
diff --git a/libtransport/src/hicn/transport/core/packet.cc b/libtransport/src/hicn/transport/core/packet.cc
deleted file mode 100644
index 817f8de66..000000000
--- a/libtransport/src/hicn/transport/core/packet.cc
+++ /dev/null
@@ -1,607 +0,0 @@
-/*
- * Copyright (c) 2017-2019 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 <hicn/transport/core/packet.h>
-#include <hicn/transport/errors/malformed_packet_exception.h>
-#include <hicn/transport/utils/hash.h>
-#include <hicn/transport/utils/log.h>
-
-extern "C" {
-#ifndef _WIN32
-TRANSPORT_CLANG_DISABLE_WARNING("-Wextern-c-compat")
-#endif
-#include <hicn/error.h>
-}
-
-namespace transport {
-
-namespace core {
-
-const core::Name Packet::base_name("0::0|0");
-
-Packet::Packet(Format format)
- : packet_(utils::MemBuf::create(getHeaderSizeFromFormat(format, 256))
- .release()),
- packet_start_(reinterpret_cast<hicn_header_t *>(packet_->writableData())),
- header_head_(packet_.get()),
- payload_head_(nullptr),
- format_(format) {
- if (hicn_packet_init_header(format, packet_start_) < 0) {
- throw errors::RuntimeException("Unexpected error initializing the packet.");
- }
-
- packet_->append(getHeaderSizeFromFormat(format_));
-}
-
-Packet::Packet(MemBufPtr &&buffer)
- : packet_(std::move(buffer)),
- packet_start_(reinterpret_cast<hicn_header_t *>(packet_->writableData())),
- header_head_(packet_.get()),
- payload_head_(nullptr),
- format_(getFormatFromBuffer(packet_->writableData())) {}
-
-Packet::Packet(const uint8_t *buffer, std::size_t size)
- : Packet(MemBufPtr(utils::MemBuf::copyBuffer(buffer, size).release())) {}
-
-Packet::Packet(Packet &&other)
- : packet_(std::move(other.packet_)),
- packet_start_(other.packet_start_),
- header_head_(other.header_head_),
- payload_head_(other.payload_head_),
- format_(other.format_) {
- other.packet_start_ = nullptr;
- other.header_head_ = nullptr;
- other.payload_head_ = nullptr;
- other.format_ = HF_UNSPEC;
-}
-
-Packet::~Packet() {}
-
-std::size_t Packet::getHeaderSizeFromFormat(Format format,
- size_t signature_size) {
- std::size_t header_length;
- hicn_packet_get_header_length_from_format(format, &header_length);
- int is_ah = _is_ah(format);
- return is_ah * (header_length + signature_size) + (!is_ah) * header_length;
-}
-
-std::size_t Packet::getHeaderSizeFromBuffer(Format format,
- const uint8_t *buffer) {
- size_t header_length;
- if (hicn_packet_get_header_length(format, (hicn_header_t *)buffer,
- &header_length) < 0) {
- throw errors::MalformedPacketException();
- }
- return header_length;
-}
-
-bool Packet::isInterest(const uint8_t *buffer) {
- bool is_interest = false;
-
- if (TRANSPORT_EXPECT_FALSE(hicn_packet_test_ece((const hicn_header_t *)buffer,
- &is_interest) < 0)) {
- throw errors::RuntimeException(
- "Impossible to retrieve ece flag from packet");
- }
-
- return !is_interest;
-}
-
-Packet::Format Packet::getFormatFromBuffer(const uint8_t *buffer) {
- Format format = HF_UNSPEC;
-
- if (TRANSPORT_EXPECT_FALSE(
- hicn_packet_get_format((const hicn_header_t *)buffer, &format) < 0)) {
- throw errors::MalformedPacketException();
- }
-
- return format;
-}
-
-std::size_t Packet::getPayloadSizeFromBuffer(Format format,
- const uint8_t *buffer) {
- std::size_t payload_length;
- if (TRANSPORT_EXPECT_FALSE(
- hicn_packet_get_payload_length(format, (hicn_header_t *)buffer,
- &payload_length) < 0)) {
- throw errors::MalformedPacketException();
- }
-
- return payload_length;
-}
-
-void Packet::replace(MemBufPtr &&buffer) {
- packet_ = std::move(buffer);
- packet_start_ = reinterpret_cast<hicn_header_t *>(packet_->writableData());
- header_head_ = packet_.get();
- payload_head_ = nullptr;
- format_ = getFormatFromBuffer(reinterpret_cast<uint8_t *>(packet_start_));
-}
-
-std::size_t Packet::payloadSize() const {
- return getPayloadSizeFromBuffer(format_,
- reinterpret_cast<uint8_t *>(packet_start_));
-}
-
-std::size_t Packet::headerSize() const {
- return getHeaderSizeFromBuffer(format_,
- reinterpret_cast<uint8_t *>(packet_start_));
-}
-
-Packet &Packet::appendPayload(std::unique_ptr<utils::MemBuf> &&payload) {
- separateHeaderPayload();
-
- if (!payload_head_) {
- payload_head_ = payload.get();
- }
-
- header_head_->prependChain(std::move(payload));
- updateLength();
- return *this;
-}
-
-Packet &Packet::appendPayload(const uint8_t *buffer, std::size_t length) {
- return appendPayload(utils::MemBuf::copyBuffer(buffer, length));
-}
-
-Packet &Packet::appendHeader(std::unique_ptr<utils::MemBuf> &&header) {
- separateHeaderPayload();
-
- if (!payload_head_) {
- header_head_->prependChain(std::move(header));
- } else {
- payload_head_->prependChain(std::move(header));
- }
-
- updateLength();
- return *this;
-}
-
-Packet &Packet::appendHeader(const uint8_t *buffer, std::size_t length) {
- return appendHeader(utils::MemBuf::copyBuffer(buffer, length));
-}
-
-std::unique_ptr<utils::MemBuf> Packet::getPayload() const {
- const_cast<Packet *>(this)->separateHeaderPayload();
-
- // Hopefully the payload is contiguous
- if (TRANSPORT_EXPECT_FALSE(payload_head_ &&
- payload_head_->next() != header_head_)) {
- payload_head_->gather(payloadSize());
- }
-
- return payload_head_->cloneOne();
-}
-
-Packet &Packet::updateLength(std::size_t length) {
- std::size_t total_length = length;
-
- for (utils::MemBuf *current = payload_head_;
- current && current != header_head_; current = current->next()) {
- total_length += current->length();
- }
-
- if (hicn_packet_set_payload_length(format_, packet_start_, total_length) <
- 0) {
- throw errors::RuntimeException("Error setting the packet payload.");
- }
-
- return *this;
-}
-
-PayloadType Packet::getPayloadType() const {
- hicn_payload_type_t ret = HPT_UNSPEC;
-
- if (hicn_packet_get_payload_type(packet_start_, &ret) < 0) {
- throw errors::RuntimeException("Impossible to retrieve payload type.");
- }
-
- return PayloadType(ret);
-}
-
-Packet &Packet::setPayloadType(PayloadType payload_type) {
- if (hicn_packet_set_payload_type(packet_start_,
- hicn_payload_type_t(payload_type)) < 0) {
- throw errors::RuntimeException("Error setting payload type of the packet.");
- }
-
- return *this;
-}
-
-Packet::Format Packet::getFormat() const {
- if (format_ == HF_UNSPEC) {
- if (hicn_packet_get_format(packet_start_, &format_) < 0) {
- throw errors::MalformedPacketException();
- }
- }
-
- return format_;
-}
-
-const std::shared_ptr<utils::MemBuf> Packet::acquireMemBufReference() const {
- return packet_;
-}
-
-void Packet::dump() const {
- const_cast<Packet *>(this)->separateHeaderPayload();
-
- std::cout << "HEADER -- Length: " << headerSize() << std::endl;
- hicn_packet_dump((uint8_t *)header_head_->data(), headerSize());
-
- std::cout << std::endl << "PAYLOAD -- Length: " << payloadSize() << std::endl;
- for (utils::MemBuf *current = payload_head_;
- current && current != header_head_; current = current->next()) {
- std::cout << "MemBuf Length: " << current->length() << std::endl;
- hicn_packet_dump((uint8_t *)current->data(), current->length());
- }
-}
-
-void Packet::setSignatureSize(std::size_t size_bytes) {
- int ret = hicn_packet_set_signature_size(format_, packet_start_, size_bytes);
-
- if (ret < 0) {
- throw errors::RuntimeException("Packet without Authentication Header.");
- }
-
- packet_->append(size_bytes);
- updateLength();
-}
-
-uint8_t *Packet::getSignature() const {
- uint8_t *signature;
- int ret = hicn_packet_get_signature(format_, packet_start_, &signature);
-
- if (ret < 0) {
- throw errors::RuntimeException("Packet without Authentication Header.");
- }
-
- return signature;
-}
-
-std::size_t Packet::getSignatureSize() const {
- size_t size_bytes;
- int ret = hicn_packet_get_signature_size(format_, packet_start_, &size_bytes);
-
- if (ret < 0) {
- throw errors::RuntimeException("Packet without Authentication Header.");
- }
-
- return size_bytes;
-}
-
-void Packet::setSignatureTimestamp(const uint64_t &timestamp) {
- int ret =
- hicn_packet_set_signature_timestamp(format_, packet_start_, timestamp);
-
- if (ret < 0) {
- throw errors::RuntimeException("Error setting the signature timestamp.");
- }
-}
-
-uint64_t Packet::getSignatureTimestamp() const {
- uint64_t return_value;
- int ret = hicn_packet_get_signature_timestamp(format_, packet_start_,
- &return_value);
-
- if (ret < 0) {
- throw errors::RuntimeException("Error getting the signature timestamp.");
- }
-
- return return_value;
-}
-
-void Packet::setValidationAlgorithm(
- const utils::CryptoSuite &validation_algorithm) {
- int ret = hicn_packet_set_validation_algorithm(format_, packet_start_,
- uint8_t(validation_algorithm));
-
- if (ret < 0) {
- throw errors::RuntimeException("Error setting the validation algorithm.");
- }
-}
-
-utils::CryptoSuite Packet::getValidationAlgorithm() const {
- uint8_t return_value;
- int ret = hicn_packet_get_validation_algorithm(format_, packet_start_,
- &return_value);
-
- if (ret < 0) {
- throw errors::RuntimeException("Error getting the validation algorithm.");
- }
-
- return utils::CryptoSuite(return_value);
-}
-
-void Packet::setKeyId(const utils::KeyId &key_id) {
- int ret = hicn_packet_set_key_id(format_, packet_start_, key_id.first);
-
- if (ret < 0) {
- throw errors::RuntimeException("Error setting the key id.");
- }
-}
-
-utils::KeyId Packet::getKeyId() const {
- utils::KeyId return_value;
- int ret = hicn_packet_get_key_id(format_, packet_start_, &return_value.first,
- &return_value.second);
-
- if (ret < 0) {
- throw errors::RuntimeException("Error getting the validation algorithm.");
- }
-
- return return_value;
-}
-
-utils::CryptoHash Packet::computeDigest(HashAlgorithm algorithm) const {
- utils::CryptoHasher hasher(static_cast<utils::CryptoHashType>(algorithm));
- hasher.init();
-
- // Copy IP+TCP/ICMP header before zeroing them
- hicn_header_t header_copy;
-
- hicn_packet_copy_header(format_, packet_start_, &header_copy, false);
-
- const_cast<Packet *>(this)->resetForHash();
-
- auto current = header_head_;
- do {
- hasher.updateBytes(current->data(), current->length());
- current = current->next();
- } while (current != header_head_);
-
- hicn_packet_copy_header(format_, &header_copy, packet_start_, false);
-
- return hasher.finalize();
-}
-
-void Packet::setChecksum() {
- uint16_t partial_csum = 0;
-
- for (utils::MemBuf *current = header_head_->next();
- current && current != header_head_; current = current->next()) {
- if (partial_csum != 0) {
- partial_csum = ~partial_csum;
- }
- partial_csum = csum(current->data(), current->length(), partial_csum);
- }
- if (hicn_packet_compute_header_checksum(format_, packet_start_,
- partial_csum) < 0) {
- throw errors::MalformedPacketException();
- }
-}
-
-bool Packet::checkIntegrity() const {
- if (hicn_packet_check_integrity(format_, packet_start_) < 0) {
- return false;
- }
-
- return true;
-}
-
-Packet &Packet::setSyn() {
- if (hicn_packet_set_syn(packet_start_) < 0) {
- throw errors::RuntimeException("Error setting syn bit in the packet.");
- }
-
- return *this;
-}
-
-Packet &Packet::resetSyn() {
- if (hicn_packet_reset_syn(packet_start_) < 0) {
- throw errors::RuntimeException("Error resetting syn bit in the packet.");
- }
-
- return *this;
-}
-
-bool Packet::testSyn() const {
- bool res = false;
- if (hicn_packet_test_syn(packet_start_, &res) < 0) {
- throw errors::RuntimeException("Error testing syn bit in the packet.");
- }
-
- return res;
-}
-
-Packet &Packet::setAck() {
- if (hicn_packet_set_ack(packet_start_) < 0) {
- throw errors::RuntimeException("Error setting ack bit in the packet.");
- }
-
- return *this;
-}
-
-Packet &Packet::resetAck() {
- if (hicn_packet_reset_ack(packet_start_) < 0) {
- throw errors::RuntimeException("Error resetting ack bit in the packet.");
- }
-
- return *this;
-}
-
-bool Packet::testAck() const {
- bool res = false;
- if (hicn_packet_test_ack(packet_start_, &res) < 0) {
- throw errors::RuntimeException("Error testing ack bit in the packet.");
- }
-
- return res;
-}
-
-Packet &Packet::setRst() {
- if (hicn_packet_set_rst(packet_start_) < 0) {
- throw errors::RuntimeException("Error setting rst bit in the packet.");
- }
-
- return *this;
-}
-
-Packet &Packet::resetRst() {
- if (hicn_packet_reset_rst(packet_start_) < 0) {
- throw errors::RuntimeException("Error resetting rst bit in the packet.");
- }
-
- return *this;
-}
-
-bool Packet::testRst() const {
- bool res = false;
- if (hicn_packet_test_rst(packet_start_, &res) < 0) {
- throw errors::RuntimeException("Error testing rst bit in the packet.");
- }
-
- return res;
-}
-
-Packet &Packet::setFin() {
- if (hicn_packet_set_fin(packet_start_) < 0) {
- throw errors::RuntimeException("Error setting fin bit in the packet.");
- }
-
- return *this;
-}
-
-Packet &Packet::resetFin() {
- if (hicn_packet_reset_fin(packet_start_) < 0) {
- throw errors::RuntimeException("Error resetting fin bit in the packet.");
- }
-
- return *this;
-}
-
-bool Packet::testFin() const {
- bool res = false;
- if (hicn_packet_test_fin(packet_start_, &res) < 0) {
- throw errors::RuntimeException("Error testing fin bit in the packet.");
- }
-
- return res;
-}
-
-Packet &Packet::resetFlags() {
- resetSyn();
- resetAck();
- resetRst();
- resetFin();
-
- return *this;
-}
-
-std::string Packet::printFlags() const {
- std::string flags = "";
- if (testSyn()) {
- flags += "S";
- }
- if (testAck()) {
- flags += "A";
- }
- if (testRst()) {
- flags += "R";
- }
- if (testFin()) {
- flags += "F";
- }
- return flags;
-}
-
-Packet &Packet::setSrcPort(uint16_t srcPort) {
- if (hicn_packet_set_src_port(packet_start_, srcPort) < 0) {
- throw errors::RuntimeException("Error setting source port in the packet.");
- }
-
- return *this;
-}
-
-Packet &Packet::setDstPort(uint16_t dstPort) {
- if (hicn_packet_set_dst_port(packet_start_, dstPort) < 0) {
- throw errors::RuntimeException(
- "Error setting destination port in the packet.");
- }
-
- return *this;
-}
-
-uint16_t Packet::getSrcPort() const {
- uint16_t port = 0;
-
- if (hicn_packet_get_src_port(packet_start_, &port) < 0) {
- throw errors::RuntimeException("Error reading source port in the packet.");
- }
-
- return port;
-}
-
-uint16_t Packet::getDstPort() const {
- uint16_t port = 0;
-
- if (hicn_packet_get_dst_port(packet_start_, &port) < 0) {
- throw errors::RuntimeException(
- "Error reading destination port in the packet.");
- }
-
- return port;
-}
-
-Packet &Packet::setTTL(uint8_t hops) {
- if (hicn_packet_set_hoplimit(packet_start_, hops) < 0) {
- throw errors::RuntimeException("Error setting TTL.");
- }
-
- return *this;
-}
-
-uint8_t Packet::getTTL() const {
- uint8_t hops = 0;
- if (hicn_packet_get_hoplimit(packet_start_, &hops) < 0) {
- throw errors::RuntimeException("Error reading TTL.");
- }
-
- return hops;
-}
-
-void Packet::separateHeaderPayload() {
- if (payload_head_) {
- return;
- }
-
- int signature_size = 0;
- if (_is_ah(format_)) {
- signature_size = (uint32_t)getSignatureSize();
- }
-
- auto header_size = getHeaderSizeFromFormat(format_, signature_size);
- auto payload_length = packet_->length() - header_size;
-
- packet_->trimEnd(packet_->length());
-
- auto payload = packet_->cloneOne();
- payload_head_ = payload.get();
- payload_head_->advance(header_size);
- payload_head_->append(payload_length);
- packet_->prependChain(std::move(payload));
- packet_->append(header_size);
-}
-
-void Packet::resetPayload() {
- if (packet_->isChained()) {
- packet_->separateChain(packet_->next(), packet_->prev());
- payload_head_ = nullptr;
- updateLength();
- }
-}
-
-} // end namespace core
-
-} // end namespace transport