87 lines
3.1 KiB
C++
87 lines
3.1 KiB
C++
/*
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* Copyright (C) 2014 Cloudius Systems, Ltd.
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*/
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#include "native-stack.hh"
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#include "native-stack-impl.hh"
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#include "net.hh"
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#include "ip.hh"
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#include "tcp-stack.hh"
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#include "udp.hh"
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#include "virtio.hh"
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#include "proxy.hh"
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#include <memory>
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#include <queue>
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namespace net {
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// native_network_stack
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class native_network_stack : public network_stack {
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static std::unique_ptr<native_network_stack> _s;
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interface _netif;
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ipv4 _inet;
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udp_v4 _udp;
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using tcp4 = tcp<ipv4_traits>;
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public:
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explicit native_network_stack(boost::program_options::variables_map opts);
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virtual server_socket listen(socket_address sa, listen_options opt) override;
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virtual udp_channel make_udp_channel(ipv4_addr addr) override;
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static std::unique_ptr<network_stack> create(boost::program_options::variables_map opts) {
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return std::make_unique<native_network_stack>(opts);
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}
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friend class native_server_socket_impl<tcp4>;
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};
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udp_channel
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native_network_stack::make_udp_channel(ipv4_addr addr) {
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return _udp.make_channel(addr);
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}
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native_network_stack::native_network_stack(boost::program_options::variables_map opts)
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: _netif(smp::main_thread() ? create_virtio_net_device(opts["tap-device"].as<std::string>(), opts) : create_proxy_net_device(opts))
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, _inet(&_netif)
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, _udp(_inet) {
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_inet.set_host_address(ipv4_address(opts["host-ipv4-addr"].as<std::string>()));
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_inet.set_gw_address(ipv4_address(opts["gw-ipv4-addr"].as<std::string>()));
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_inet.set_netmask_address(ipv4_address(opts["netmask-ipv4-addr"].as<std::string>()));
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_udp.set_queue_size(opts["udpv4-queue-size"].as<int>());
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}
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server_socket
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native_network_stack::listen(socket_address sa, listen_options opts) {
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assert(sa.as_posix_sockaddr().sa_family == AF_INET);
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return tcpv4_listen(_inet.get_tcp(), ntohs(sa.as_posix_sockaddr_in().sin_port), opts);
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}
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std::unique_ptr<native_network_stack> native_network_stack::_s;
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boost::program_options::options_description nns_options() {
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boost::program_options::options_description opts(
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"Native networking stack options");
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opts.add_options()
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("tap-device",
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boost::program_options::value<std::string>()->default_value("tap0"),
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"tap device to connect to")
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("host-ipv4-addr",
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boost::program_options::value<std::string>()->default_value("192.168.122.2"),
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"static IPv4 address to use")
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("gw-ipv4-addr",
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boost::program_options::value<std::string>()->default_value("192.168.122.1"),
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"static IPv4 gateway to use")
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("netmask-ipv4-addr",
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boost::program_options::value<std::string>()->default_value("255.255.255.0"),
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"static IPv4 netmask to use")
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("udpv4-queue-size",
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boost::program_options::value<int>()->default_value(udp_v4::default_queue_size),
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"Default size of the UDPv4 per-channel packet queue")
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;
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opts.add(get_virtio_net_options_description());
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return opts;
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}
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network_stack_registrator nns_registrator{
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"native", nns_options(), native_network_stack::create
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};
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}
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