ModernUO/Projects/Server.Tests/Tests/Network/Packets/Outgoing/AccountPacketTests.cs
Kamron Batman 3c0d6cb9d6
feat: Upgrades networking to use io_uring. (#2315)
> [!IMPORTANT]
> **Breaking Changes**
> - DecodePacket and EncodePacket delegates replaced with IClientEncryption interface
> - NetState.Connection (Socket) replaced with internal RingSocket management
> - NetState.RecvPipe and NetState.SendPipe removed (buffers managed internally)

## Summary

Upgrades the networking stack from PollGroup-based I/O to io_uring, significantly improving I/O performance on Linux.
This also adds native client encryption support for encrypted UO clients.

## Major Changes

io_uring Networking Architecture
- Replaced PollGroup with IORingGroup for async socket I/O operations
- Removed Pipe.cs (mirrored ring buffer) and TcpServer.cs in favor of RingSocketManager
- Added NetState.Network.cs - centralized network infrastructure handling accept, recv, send, and disconnect
completions
- Added SocketHelper.cs - platform-specific socket utilities for raw socket handle operations (getpeername,
getsockname)
- Buffer management now handled by RingSocketManager with configurable slab allocation

### Client Encryption Support
- Added full encryption stack in Network/Encryption/:
  - EncryptionConfig.cs - configurable encryption modes (None, Unencrypted, Encrypted, Both)
  - EncryptionManager.cs - encryption detection and initialization for login/game packets
  - LoginEncryption.cs - handles login packet encryption with version-derived keys
  - GameEncryption.cs - handles game server encryption using Twofish
  - TwofishEngine.cs - optimized Twofish block cipher implementation
  - LoginKeys.cs - encryption key table for client versions
  - IClientEncryption.cs - interface for client encryption implementations

### NetState Improvements
- Replaced Socket Connection with RingSocket _socket for managed socket lifecycle
- Changed from GCHandle polling to event-based completion processing
- Disconnect handling now properly waits for pending sends to flush
- Simplified connecting socket management using lazy queue removal

### Configuration
- New settings: network.encryptionMode and network.encryptionDebug
- Encryption mode flags: Unencrypted, Encrypted, or Both

### Dependencies
- Replaced PollGroup NuGet package with IORingGroup
- Linux requires liburing-dev / liburing-devel package

### Test plan

- Verify server starts and accepts connections on Linux with io_uring
- Verify server starts and accepts connections on Windows (fallback to IOCP)
- Test unencrypted client connections (ClassicUO with encryption disabled)
- Test encrypted client connections if available
- Verify graceful disconnect flushes pending data
- Confirm CI builds pass on all target platforms
2026-02-01 16:02:32 -08:00

335 lines
9.3 KiB
C#

using System;
using System.Collections.Generic;
using System.Net;
using Server.Accounting;
using Server.Network;
using Xunit;
namespace Server.Tests.Network;
[Collection("Sequential Server Tests")]
public class AccountPacketTests
{
private class MockedAccount : IAccount
{
public int TotalGold { get; }
public int TotalPlat { get; }
public bool DepositGold(int amount) => throw new NotImplementedException();
public bool DepositPlat(int amount) => throw new NotImplementedException();
public bool WithdrawGold(int amount) => throw new NotImplementedException();
public bool WithdrawPlat(int amount) => throw new NotImplementedException();
public long GetTotalGold() => throw new NotImplementedException();
public int CompareTo(IAccount other) => throw new NotImplementedException();
public string Username { get; }
public string Email { get; set; }
public AccessLevel AccessLevel { get; set; }
public int Length { get; }
public int Limit { get; }
public int Count { get; }
private Dictionary<int, Mobile> _mobiles = new();
public Mobile this[int index]
{
get => _mobiles[index];
set
{
_mobiles[index] = value;
if (value != null)
{
value.Account = this;
}
}
}
public DateTime Created { get; set; }
public Serial Serial { get; }
public void Deserialize(IGenericReader reader) => throw new NotImplementedException();
public byte SerializedThread { get; set; }
public int SerializedPosition { get; set; }
public int SerializedLength { get; set; }
public void Serialize(IGenericWriter writer) => throw new NotImplementedException();
public bool Deleted { get; }
public void Delete() => throw new NotImplementedException();
public bool TrySetUsername(string username) => throw new NotImplementedException();
public void SetPassword(string password) => throw new NotImplementedException();
public bool CheckPassword(string password) => throw new NotImplementedException();
}
[Fact]
public void TestChangeCharacter()
{
var firstMobile = new Mobile((Serial)0x1);
firstMobile.DefaultMobileInit();
firstMobile.RawName = "Test Mobile";
var secondMobile = new Mobile((Serial)0x2);
secondMobile.DefaultMobileInit();
secondMobile.RawName = null;
var account = new MockedAccount
{
[0] = firstMobile,
[1] = null,
[2] = secondMobile
};
// var account = new MockAccount(new[] { firstMobile, null, secondMobile });
var expected = new ChangeCharacter(account).Compile();
using var ns = PacketTestUtilities.CreateTestNetState();
ns.SendChangeCharacter(account);
var result = ns.SendBuffer.GetReadSpan();
AssertThat.Equal(result, expected);
}
[Fact]
public void TestClientVersionReq()
{
var expected = new ClientVersionReq().Compile();
using var ns = PacketTestUtilities.CreateTestNetState();
ns.SendClientVersionRequest();
var result = ns.SendBuffer.GetReadSpan();
AssertThat.Equal(result, expected);
}
[Fact]
public void TestDeleteResult()
{
var expected = new DeleteResult(DeleteResultType.BadRequest).Compile();
using var ns = PacketTestUtilities.CreateTestNetState();
ns.SendCharacterDeleteResult(DeleteResultType.BadRequest);
var result = ns.SendBuffer.GetReadSpan();
AssertThat.Equal(result, expected);
}
[Fact]
public void TestPopupMessage()
{
var expected = new PopupMessage(PMMessage.LoginSyncError).Compile();
using var ns = PacketTestUtilities.CreateTestNetState();
ns.SendPopupMessage(PMMessage.LoginSyncError);
var result = ns.SendBuffer.GetReadSpan();
AssertThat.Equal(result, expected);
}
[Theory, InlineData(ProtocolChanges.Version70610), InlineData(ProtocolChanges.Version6000)]
public void TestSupportedFeatures(ProtocolChanges protocolChanges)
{
var firstMobile = new Mobile((Serial)0x1);
firstMobile.DefaultMobileInit();
firstMobile.Name = "Test Mobile";
var account = new MockedAccount
{
[0] = firstMobile,
[1] = null,
[2] = null,
[3] = null,
[4] = null
};
using var ns = PacketTestUtilities.CreateTestNetState();
ns.Account = account;
ns.ProtocolChanges = protocolChanges;
var expected = new SupportedFeatures(ns).Compile();
ns.SendSupportedFeature();
var result = ns.SendBuffer.GetReadSpan();
AssertThat.Equal(result, expected);
}
[Fact]
public void TestLoginConfirm()
{
var m = new Mobile((Serial)0x1);
m.DefaultMobileInit();
m.Body = 0x100;
m.X = 100;
m.Y = 10;
m.Z = -10;
m.Direction = Direction.Down;
m.LogoutMap = Map.Felucca;
var expected = new LoginConfirm(m).Compile();
using var ns = PacketTestUtilities.CreateTestNetState();
ns.SendLoginConfirmation(m);
var result = ns.SendBuffer.GetReadSpan();
AssertThat.Equal(result, expected);
}
[Fact]
public void TestLoginComplete()
{
var expected = new LoginComplete().Compile();
using var ns = PacketTestUtilities.CreateTestNetState();
ns.SendLoginComplete();
var result = ns.SendBuffer.GetReadSpan();
AssertThat.Equal(result, expected);
}
[Fact]
public void TestCharacterListUpdate()
{
var firstMobile = new Mobile((Serial)0x1);
firstMobile.DefaultMobileInit();
firstMobile.RawName = "Test Mobile";
var account = new MockedAccount
{
[0] = null,
[1] = firstMobile,
[2] = null,
[3] = null,
[4] = null
};
var expected = new CharacterListUpdate(account).Compile();
using var ns = PacketTestUtilities.CreateTestNetState();
ns.SendCharacterListUpdate(account);
var result = ns.SendBuffer.GetReadSpan();
AssertThat.Equal(result, expected);
}
[Fact]
public void TestCharacterList70130()
{
var firstMobile = new Mobile((Serial)0x1);
firstMobile.DefaultMobileInit();
firstMobile.Name = "Test Mobile";
var account = new MockedAccount
{
[0] = null,
[1] = firstMobile,
[2] = null,
[3] = null,
[4] = null
};
var info = new[]
{
new CityInfo("Test City", "Test Building", 50, 100, 10, -10)
};
var expected = new CharacterList(account, info).Compile();
using var ns = PacketTestUtilities.CreateTestNetState();
ns.CityInfo = info;
ns.Account = account;
ns.ProtocolChanges = ProtocolChanges.Version70130;
ns.SendCharacterList();
var result = ns.SendBuffer.GetReadSpan();
AssertThat.Equal(result, expected);
}
[Fact]
public void TestCharacterListOld()
{
var firstMobile = new Mobile((Serial)0x1);
firstMobile.DefaultMobileInit();
firstMobile.Name = "Test Mobile";
var account = new MockedAccount
{
[0] = null,
[1] = firstMobile,
[2] = null,
[3] = null,
[4] = null
};
var info = new[]
{
new CityInfo("Test City", "Test Building", 50, 100, 10, -10)
};
var expected = new CharacterListOld(account, info).Compile();
using var ns = PacketTestUtilities.CreateTestNetState();
ns.CityInfo = info;
ns.Account = account;
ns.SendCharacterList();
var result = ns.SendBuffer.GetReadSpan();
AssertThat.Equal(result, expected);
}
[Fact]
public void TestAccountLoginRej()
{
var reason = ALRReason.BadComm;
var expected = new AccountLoginRej(reason).Compile();
using var ns = PacketTestUtilities.CreateTestNetState();
ns.SendAccountLoginRejected(reason);
var result = ns.SendBuffer.GetReadSpan();
AssertThat.Equal(result, expected);
}
[Fact]
public void TestAccountLoginAck()
{
var info = new[]
{
new ServerInfo("Test Server", 0, TimeZoneInfo.Local, IPEndPoint.Parse("127.0.0.1"))
};
var expected = new AccountLoginAck(info).Compile();
using var ns = PacketTestUtilities.CreateTestNetState();
ns.ServerInfo = info;
ns.SendAccountLoginAck();
var result = ns.SendBuffer.GetReadSpan();
AssertThat.Equal(result, expected);
}
[Fact]
public void TestPlayServerAck()
{
var si = new ServerInfo("Test Server", 0, TimeZoneInfo.Local, IPEndPoint.Parse("127.0.0.1"));
const int authId = 0x123456;
var expected = new PlayServerAck(si, authId).Compile();
using var ns = PacketTestUtilities.CreateTestNetState();
ns.SendPlayServerAck(si, authId);
var result = ns.SendBuffer.GetReadSpan();
AssertThat.Equal(result, expected);
}
}