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author | FearlessTobi <thm.frey@gmail.com> | 2022-07-30 05:58:23 +0200 |
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committer | FearlessTobi <thm.frey@gmail.com> | 2022-08-15 20:25:42 +0200 |
commit | f80c7c4cd5c090b9a31f89a0eb3d86cbe928c50b (patch) | |
tree | ad359908ba2d3cd003082b39cc7217b61e5b18f6 /src/core/internal_network/socket_proxy.cpp | |
parent | web_service: Correct jwt issuer string (diff) | |
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Diffstat (limited to 'src/core/internal_network/socket_proxy.cpp')
-rw-r--r-- | src/core/internal_network/socket_proxy.cpp | 282 |
1 files changed, 282 insertions, 0 deletions
diff --git a/src/core/internal_network/socket_proxy.cpp b/src/core/internal_network/socket_proxy.cpp new file mode 100644 index 000000000..6e8924822 --- /dev/null +++ b/src/core/internal_network/socket_proxy.cpp @@ -0,0 +1,282 @@ +// Copyright 2022 yuzu emulator team +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#include <chrono> +#include <thread> + +#include "common/assert.h" +#include "common/logging/log.h" +#include "core/internal_network/network.h" +#include "core/internal_network/network_interface.h" +#include "core/internal_network/socket_proxy.h" + +namespace Network { + +ProxySocket::ProxySocket(RoomNetwork& room_network_) noexcept : room_network{room_network_} {} + +ProxySocket::ProxySocket(ProxySocket&& rhs) noexcept : room_network{rhs.room_network} { + fd = std::exchange(rhs.fd, INVALID_SOCKET); +} + +ProxySocket::~ProxySocket() { + if (fd == INVALID_SOCKET) { + return; + } + fd = INVALID_SOCKET; +} + +void ProxySocket::HandleProxyPacket(const ProxyPacket& packet) { + if (protocol != packet.protocol || local_endpoint.portno != packet.remote_endpoint.portno || + closed) { + return; + } + std::lock_guard<std::mutex> guard(packets_mutex); + received_packets.push(packet); +} + +template <typename T> +Errno ProxySocket::SetSockOpt(SOCKET _fd, int option, T value) { + socket_options[option] = reinterpret_cast<const char*>(&value); + return Errno::SUCCESS; +} + +Errno ProxySocket::Initialize(Domain domain, Type type, Protocol socket_protocol) { + protocol = socket_protocol; + socket_options[0x1008] = reinterpret_cast<const char*>(&type); + + return Errno::SUCCESS; +} + +std::pair<ProxySocket::AcceptResult, Errno> ProxySocket::Accept() { + LOG_WARNING(Network, "(STUBBED) called"); + return {AcceptResult{}, Errno::SUCCESS}; +} + +Errno ProxySocket::Connect(SockAddrIn addr_in) { + LOG_WARNING(Network, "(STUBBED) called"); + return Errno::SUCCESS; +} + +std::pair<SockAddrIn, Errno> ProxySocket::GetPeerName() { + LOG_WARNING(Network, "(STUBBED) called"); + return {SockAddrIn{}, Errno::SUCCESS}; +} + +std::pair<SockAddrIn, Errno> ProxySocket::GetSockName() { + LOG_WARNING(Network, "(STUBBED) called"); + return {SockAddrIn{}, Errno::SUCCESS}; +} + +Errno ProxySocket::Bind(SockAddrIn addr) { + if (is_bound) { + LOG_WARNING(Network, "Rebinding Socket is unimplemented!"); + return Errno::SUCCESS; + } + local_endpoint = addr; + is_bound = true; + + return Errno::SUCCESS; +} + +Errno ProxySocket::Listen(s32 backlog) { + LOG_WARNING(Network, "(STUBBED) called"); + return Errno::SUCCESS; +} + +Errno ProxySocket::Shutdown(ShutdownHow how) { + LOG_WARNING(Network, "(STUBBED) called"); + return Errno::SUCCESS; +} + +std::pair<s32, Errno> ProxySocket::Recv(int flags, std::vector<u8>& message) { + LOG_WARNING(Network, "(STUBBED) called"); + ASSERT(flags == 0); + ASSERT(message.size() < static_cast<size_t>(std::numeric_limits<int>::max())); + + return {static_cast<s32>(0), Errno::SUCCESS}; +} + +std::pair<s32, Errno> ProxySocket::RecvFrom(int flags, std::vector<u8>& message, SockAddrIn* addr) { + ASSERT(flags == 0); + ASSERT(message.size() < static_cast<size_t>(std::numeric_limits<int>::max())); + + { + std::lock_guard<std::mutex> guard(packets_mutex); + if (received_packets.size() > 0) { + return ReceivePacket(flags, message, addr, message.size()); + } + } + + if (blocking) { + if (receive_timeout > 0) { + std::this_thread::sleep_for(std::chrono::milliseconds(receive_timeout)); + } + } else { + return {-1, Errno::AGAIN}; + } + + std::lock_guard<std::mutex> guard(packets_mutex); + if (received_packets.size() > 0) { + return ReceivePacket(flags, message, addr, message.size()); + } + + return {-1, Errno::TIMEDOUT}; +} + +std::pair<s32, Errno> ProxySocket::ReceivePacket(int flags, std::vector<u8>& message, + SockAddrIn* addr, std::size_t max_length) { + ProxyPacket& packet = received_packets.front(); + if (addr) { + addr->family = Domain::INET; + addr->ip = packet.local_endpoint.ip; // The senders ip address + addr->portno = packet.local_endpoint.portno; // The senders port number + } + + bool peek = (flags & FLAG_MSG_PEEK) != 0; + std::size_t read_bytes; + if (packet.data.size() > max_length) { + read_bytes = max_length; + message.clear(); + std::copy(packet.data.begin(), packet.data.begin() + read_bytes, + std::back_inserter(message)); + message.resize(max_length); + + if (protocol == Protocol::UDP) { + if (!peek) { + received_packets.pop(); + } + return {-1, Errno::MSGSIZE}; + } else if (protocol == Protocol::TCP) { + std::vector<u8> numArray(packet.data.size() - max_length); + std::copy(packet.data.begin() + max_length, packet.data.end(), + std::back_inserter(numArray)); + packet.data = numArray; + } + } else { + read_bytes = packet.data.size(); + message.clear(); + std::copy(packet.data.begin(), packet.data.end(), std::back_inserter(message)); + message.resize(max_length); + if (!peek) { + received_packets.pop(); + } + } + + return {static_cast<u32>(read_bytes), Errno::SUCCESS}; +} + +std::pair<s32, Errno> ProxySocket::Send(const std::vector<u8>& message, int flags) { + LOG_WARNING(Network, "(STUBBED) called"); + ASSERT(message.size() < static_cast<size_t>(std::numeric_limits<int>::max())); + ASSERT(flags == 0); + + return {static_cast<s32>(0), Errno::SUCCESS}; +} + +void ProxySocket::SendPacket(ProxyPacket& packet) { + if (auto room_member = room_network.GetRoomMember().lock()) { + if (room_member->IsConnected()) { + room_member->SendProxyPacket(packet); + } + } +} + +std::pair<s32, Errno> ProxySocket::SendTo(u32 flags, const std::vector<u8>& message, + const SockAddrIn* addr) { + ASSERT(flags == 0); + + if (!is_bound) { + LOG_ERROR(Network, "ProxySocket is not bound!"); + return {static_cast<s32>(message.size()), Errno::SUCCESS}; + } + + if (auto room_member = room_network.GetRoomMember().lock()) { + if (!room_member->IsConnected()) { + return {static_cast<s32>(message.size()), Errno::SUCCESS}; + } + } + + ProxyPacket packet; + packet.local_endpoint = local_endpoint; + packet.remote_endpoint = *addr; + packet.protocol = protocol; + packet.broadcast = broadcast; + + auto& ip = local_endpoint.ip; + auto ipv4 = Network::GetHostIPv4Address(); + // If the ip is all zeroes (INADDR_ANY) or if it matches the hosts ip address, + // replace it with a "fake" routing address + if (std::all_of(ip.begin(), ip.end(), [](u8 i) { return i == 0; }) || (ipv4 && ipv4 == ip)) { + if (auto room_member = room_network.GetRoomMember().lock()) { + packet.local_endpoint.ip = room_member->GetFakeIpAddress(); + } + } + + packet.data.clear(); + std::copy(message.begin(), message.end(), std::back_inserter(packet.data)); + + SendPacket(packet); + + return {static_cast<s32>(message.size()), Errno::SUCCESS}; +} + +Errno ProxySocket::Close() { + fd = INVALID_SOCKET; + closed = true; + + return Errno::SUCCESS; +} + +Errno ProxySocket::SetLinger(bool enable, u32 linger) { + struct Linger { + u16 linger_enable; + u16 linger_time; + } values; + values.linger_enable = enable ? 1 : 0; + values.linger_time = static_cast<u16>(linger); + + return SetSockOpt(fd, SO_LINGER, values); +} + +Errno ProxySocket::SetReuseAddr(bool enable) { + return SetSockOpt<u32>(fd, SO_REUSEADDR, enable ? 1 : 0); +} + +Errno ProxySocket::SetBroadcast(bool enable) { + broadcast = enable; + return SetSockOpt<u32>(fd, SO_BROADCAST, enable ? 1 : 0); +} + +Errno ProxySocket::SetSndBuf(u32 value) { + return SetSockOpt(fd, SO_SNDBUF, value); +} + +Errno ProxySocket::SetKeepAlive(bool enable) { + return Errno::SUCCESS; +} + +Errno ProxySocket::SetRcvBuf(u32 value) { + return SetSockOpt(fd, SO_RCVBUF, value); +} + +Errno ProxySocket::SetSndTimeo(u32 value) { + send_timeout = value; + return SetSockOpt(fd, SO_SNDTIMEO, static_cast<int>(value)); +} + +Errno ProxySocket::SetRcvTimeo(u32 value) { + receive_timeout = value; + return SetSockOpt(fd, SO_RCVTIMEO, static_cast<int>(value)); +} + +Errno ProxySocket::SetNonBlock(bool enable) { + blocking = !enable; + return Errno::SUCCESS; +} + +bool ProxySocket::IsOpened() const { + return fd != INVALID_SOCKET; +} + +} // namespace Network |