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7ac3ba901c
Instead of forward() deciding packet destination make it collect input for RSS hash function depending on packet type. After data is collected use toeplitz hash function to calculate packet's destination.
55 lines
1.4 KiB
C++
55 lines
1.4 KiB
C++
/*
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* Copyright (C) 2014 Cloudius Systems, Ltd.
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*/
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#include "arp.hh"
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namespace net {
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arp_for_protocol::arp_for_protocol(arp& a, uint16_t proto_num)
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: _arp(a), _proto_num(proto_num) {
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_arp.add(proto_num, this);
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}
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arp_for_protocol::~arp_for_protocol() {
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_arp.del(_proto_num);
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}
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arp::arp(interface* netif) : _netif(netif), _proto(netif, eth_protocol_num::arp)
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, _rx_packets(_proto.receive([this] (packet p, ethernet_address ea) {
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return process_packet(std::move(p), ea);
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},
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[this](forward_hash& out_hash_data, packet& p, size_t off) {
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return forward(out_hash_data, p, off);
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})) {
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}
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bool arp::forward(forward_hash& out_hash_data, packet& p, size_t off) {
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auto ah = p.get_header<arp_hdr>(off);
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auto i = _arp_for_protocol.find(ntoh(ah->ptype));
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if (i != _arp_for_protocol.end()) {
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return i->second->forward(out_hash_data, p, off);
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}
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return false;
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}
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void arp::add(uint16_t proto_num, arp_for_protocol* afp) {
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_arp_for_protocol[proto_num] = afp;
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}
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void arp::del(uint16_t proto_num) {
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_arp_for_protocol.erase(proto_num);
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}
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future<>
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arp::process_packet(packet p, ethernet_address from) {
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auto ah = ntoh(*p.get_header<arp_hdr>());
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auto i = _arp_for_protocol.find(ah.ptype);
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if (i != _arp_for_protocol.end()) {
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i->second->received(std::move(p));
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}
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return make_ready_future<>();
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}
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}
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