CydandClaude Fable 5
ff6ec8c56a
Steamworks SDK 1.64 vendored at extern/steamworks_sdk_164 (headers + win32 redistributables only; .gitignore trims the rest). Both projects build with RP412_STEAM; activation stays behind the RP412STEAM=1 environment switch, so plain desktop runs never touch Steam. L4STEAMTRANSPORT.cpp implements NetTransport on ISteamNetworkingSockets with FakeIP: SteamNetTransport_Install brings up SteamAPI, relay network access, and a two-port FakeIP identity (fake port 0 = console channel, 1 = game mesh), then swaps the process wire; any failure logs the reason and the game carries on over TCP. Addressing keeps the engine untouched: all pods share the -net port convention, eggs carry fakeip:engineport, and the transport alone translates engine ports to Steam fake ports via the lobby-fed peer table (RegisterPeer). Connect mirrors the TCP retry-while-refused loop; Receive normalizes message lanes back into the stream semantics CheckBuffers expects. Runtime verified on this box: RP412STEAM=1 under AppID 480 came up as 169.254.59.52 (fake ports 32256/32257); without Steam credentials it falls back to TCP cleanly; default boot logs no Steam lines at all. steam_api.dll ships in the dist. Next: the lobby layer (ISteamMatchmaking member data -> RegisterPeer + egg build + RPL4CONSOLE marshal), which needs a second account to test. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
84 lines
4.0 KiB
C
84 lines
4.0 KiB
C
//===========================================================================//
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// File: l4steamtransport.h //
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// Project: MUNGA Brick: Steam Network Transport //
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// Contents: NetTransport over ISteamNetworkingSockets (FakeIP) //
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//---------------------------------------------------------------------------//
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// Copyright (C) 1994-1995, Virtual World Entertainment, Inc. //
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// PROPRIETARY AND CONFIDENTIAL //
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//===========================================================================//
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#pragma once
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#include "..\munga\style.h"
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//########################################################################
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// SteamNetTransport - the retail wire (l4steamtransport.cpp). Built
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// only under RP412_STEAM (Steamworks SDK vendored at
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// extern\steamworks_sdk_164; steam_api.dll ships beside the exe).
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//
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// Method mapping onto ISteamNetworkingSockets:
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//
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// Install SteamAPI_Init + InitRelayNetworkAccess, then
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// BeginAsyncRequestFakeIP(2): fake port 0 is the
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// console channel, fake port 1 the game mesh.
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// On success installs itself via NetTransport_Set;
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// on any failure the process stays on Winsock TCP.
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// GetLocalAddresses our FakeIP (the mesh identifies "which [pilots]
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// entry is me" against it).
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// Resolve SteamNetworkingIPAddr::ParseString - FakeIPs ARE
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// IPv4 strings, so egg text stays unchanged.
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// Connect ConnectByIPAddress to the peer's FakeIP + fake
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// game port (SDR routes it; NAT traversal and IP
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// privacy come free); blocks pumping callbacks
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// until Connected, retrying like the TCP
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// connect-while-refused loop.
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// Listen CreateListenSocketP2PFakeIP - first engine port
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// seen maps to fake port 0, second to fake port 1.
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// Accept connection-request callback AcceptConnections
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// queue up; Accept() pops fully-connected ones.
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// Send SendMessageToConnection, reliable lane (the
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// engine's stream framing assumes ordered
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// reliable delivery).
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// Receive ReceiveMessagesOnConnection into the caller's
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// buffer; normalized to ReceiveNoData /
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// ReceiveDisconnected like the Winsock transport.
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// GetRemoteAddress GetRemoteFakeIPForConnection, with the fake
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// port translated back to the ENGINE port so the
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// mesh's SOCKADDR_IN identity checks keep working.
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//
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// Addressing convention under Steam: every pod launches with the same
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// -net port (the lobby fixes it), so the egg's [pilots] entries are
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// "<fakeip>:<engine game port>" - the engine's self-match and peer
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// checks all work on engine ports, and only this transport knows the
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// Steam-assigned fake port values. The lobby layer exchanges each
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// member's FakeIP + fake game port and feeds RegisterPeer before the
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// egg is distributed.
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//########################################################################
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#ifdef RP412_STEAM
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// Bring Steam up and make this the process transport. False (with the
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// reason logged) leaves the Winsock transport in place - callers just
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// carry on over TCP.
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Logical
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SteamNetTransport_Install();
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// Our FakeIP as a dotted string ("169.254.x.y"), for lobby member data
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// and the [pilots] list. Empty until Install succeeds.
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const char *
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SteamNetTransport_GetFakeAddressString();
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// Our Steam-assigned fake game port (lobby member data).
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int
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SteamNetTransport_GetFakeGamePort();
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// The lobby feeds every member's FakeIP + fake game port here before
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// StartConnecting runs.
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void
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SteamNetTransport_RegisterPeer(
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const char *fake_ip,
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int fake_game_port
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);
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#endif // RP412_STEAM
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