core, network: Add ability to proxy socket packets

src/common/CMakeLists.txt

@@ -124,6 +124,7 @@ add_library(common STATIC
     settings.h
     settings_input.cpp
     settings_input.h
+    socket_types.h
     spin_lock.cpp
     spin_lock.h
     stream.cpp

src/common/announce_multiplayer_room.h

@@ -8,12 +8,11 @@
 #include <string>
 #include <vector>
 #include "common/common_types.h"
+#include "common/socket_types.h"
 #include "web_service/web_result.h"
 
 namespace AnnounceMultiplayerRoom {
 
-using MacAddress = std::array<u8, 6>;
-
 struct GameInfo {
     std::string name{""};
     u64 id{0};
@@ -24,7 +23,7 @@ struct Member {
     std::string nickname;
     std::string display_name;
     std::string avatar_url;
-    MacAddress mac_address;
+    Network::IPv4Address fake_ip;
     GameInfo game;
 };
 
@@ -75,10 +74,7 @@ public:
                                     const bool has_password, const GameInfo& preferred_game) = 0;
     /**
      * Adds a player information to the data that gets announced
-     * @param nickname The nickname of the player
-     * @param mac_address The MAC Address of the player
-     * @param game_id The title id of the game the player plays
-     * @param game_name The name of the game the player plays
+     * @param member The player to add
      */
     virtual void AddPlayer(const Member& member) = 0;
 

src/common/socket_types.h

@@ -0,0 +1,52 @@
+// Copyright 2022 yuzu emulator team
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "common/common_types.h"
+
+namespace Network {
+
+/// Address families
+enum class Domain : u8 {
+    INET, ///< Address family for IPv4
+};
+
+/// Socket types
+enum class Type {
+    STREAM,
+    DGRAM,
+    RAW,
+    SEQPACKET,
+};
+
+/// Protocol values for sockets
+enum class Protocol : u8 {
+    ICMP,
+    TCP,
+    UDP,
+};
+
+/// Shutdown mode
+enum class ShutdownHow {
+    RD,
+    WR,
+    RDWR,
+};
+
+/// Array of IPv4 address
+using IPv4Address = std::array<u8, 4>;
+
+/// Cross-platform sockaddr structure
+struct SockAddrIn {
+    Domain family;
+    IPv4Address ip;
+    u16 portno;
+};
+
+constexpr u32 FLAG_MSG_PEEK = 0x2;
+constexpr u32 FLAG_MSG_DONTWAIT = 0x80;
+constexpr u32 FLAG_O_NONBLOCK = 0x800;
+
+} // namespace Network