diff options
Diffstat (limited to 'src/msg/async/dpdk/ARP.cc')
-rw-r--r-- | src/msg/async/dpdk/ARP.cc | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/src/msg/async/dpdk/ARP.cc b/src/msg/async/dpdk/ARP.cc new file mode 100644 index 00000000..dedc9e3c --- /dev/null +++ b/src/msg/async/dpdk/ARP.cc @@ -0,0 +1,89 @@ +// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*- +/* + * This file is open source software, licensed to you under the terms + * of the Apache License, Version 2.0 (the "License"). See the NOTICE file + * distributed with this work for additional information regarding copyright + * ownership. 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. + */ +/* + * Copyright (C) 2014 Cloudius Systems, Ltd. + */ + +#include "ARP.h" + +arp_for_protocol::arp_for_protocol(arp& a, uint16_t proto_num) + : _arp(a), _proto_num(proto_num) +{ + _arp.add(proto_num, this); +} + +arp_for_protocol::~arp_for_protocol() +{ + _arp.del(_proto_num); +} + +arp::arp(interface* netif): + _netif(netif), + _proto(netif, eth_protocol_num::arp, [this] { return get_packet(); }), + _rx_packets( + _proto.receive( + [this] (Packet p, ethernet_address ea) { + return process_packet(std::move(p), ea); + }, + [this](forward_hash& out_hash_data, Packet& p, size_t off) { + return forward(out_hash_data, p, off); + } + ) + ) +{} + +Tub<l3_protocol::l3packet> arp::get_packet() +{ + Tub<l3_protocol::l3packet> p; + if (!_packetq.empty()) { + p = std::move(_packetq.front()); + _packetq.pop_front(); + } + return p; +} + +bool arp::forward(forward_hash& out_hash_data, Packet& p, size_t off) +{ + auto ah = p.get_header<arp_hdr>(off); + auto i = _arp_for_protocol.find(ntoh(ah->ptype)); + if (i != _arp_for_protocol.end()) { + return i->second->forward(out_hash_data, p, off); + } + return false; +} + +void arp::add(uint16_t proto_num, arp_for_protocol* afp) +{ + _arp_for_protocol[proto_num] = afp; +} + +void arp::del(uint16_t proto_num) +{ + _arp_for_protocol.erase(proto_num); +} + +int arp::process_packet(Packet p, ethernet_address from) +{ + auto ah = p.get_header<arp_hdr>()->ntoh(); + auto i = _arp_for_protocol.find(ah.ptype); + if (i != _arp_for_protocol.end()) { + i->second->received(std::move(p)); + } + return 0; +} |