fb1d9493a3
* Rename enum fields
* Naming conventions
* Remove unneeded ".this"
* Remove unneeded semicolons
* Remove unused Usings
* Don't use var
* Remove unneeded enum underlying types
* Explicitly label class visibility
* Remove unneeded @ prefixes
* Remove unneeded commas
* Remove unneeded if expressions
* Method doesn't use unsafe code
* Remove unneeded casts
* Initialized objects don't need an empty constructor
* Remove settings from DotSettings
* Revert "Explicitly label class visibility"
This reverts commit ad5eb5787c.
* Small changes
* Revert external enum renaming
* Changes from feedback
* Apply previous refactorings to the merged code
399 lines
15 KiB
C#
399 lines
15 KiB
C#
using Ryujinx.Common.Logging;
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using Ryujinx.HLE.HOS.Ipc;
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using System;
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using System.Collections.Generic;
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using System.Net;
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using System.Net.Sockets;
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using System.Text;
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using static Ryujinx.HLE.HOS.ErrorCode;
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namespace Ryujinx.HLE.HOS.Services.Sfdnsres
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{
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class IResolver : IpcService
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{
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private Dictionary<int, ServiceProcessRequest> _commands;
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public override IReadOnlyDictionary<int, ServiceProcessRequest> Commands => _commands;
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public IResolver()
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{
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_commands = new Dictionary<int, ServiceProcessRequest>
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{
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{ 0, SetDnsAddressesPrivate },
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{ 1, GetDnsAddressesPrivate },
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{ 2, GetHostByName },
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{ 3, GetHostByAddress },
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{ 4, GetHostStringError },
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{ 5, GetGaiStringError },
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{ 8, RequestCancelHandle },
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{ 9, CancelSocketCall },
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{ 11, ClearDnsAddresses }
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};
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}
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private long SerializeHostEnt(ServiceCtx context, IPHostEntry hostEntry, List<IPAddress> addresses = null)
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{
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long originalBufferPosition = context.Request.ReceiveBuff[0].Position;
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long bufferPosition = originalBufferPosition;
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long bufferSize = context.Request.ReceiveBuff[0].Size;
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string hostName = hostEntry.HostName + '\0';
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// h_name
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context.Memory.WriteBytes(bufferPosition, Encoding.ASCII.GetBytes(hostName));
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bufferPosition += hostName.Length;
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// h_aliases list size
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context.Memory.WriteInt32(bufferPosition, IPAddress.HostToNetworkOrder(hostEntry.Aliases.Length));
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bufferPosition += 4;
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// Actual aliases
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foreach (string alias in hostEntry.Aliases)
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{
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context.Memory.WriteBytes(bufferPosition, Encoding.ASCII.GetBytes(alias + '\0'));
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bufferPosition += alias.Length + 1;
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}
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// h_addrtype but it's a short (also only support IPv4)
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context.Memory.WriteInt16(bufferPosition, IPAddress.HostToNetworkOrder((short)2));
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bufferPosition += 2;
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// h_length but it's a short
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context.Memory.WriteInt16(bufferPosition, IPAddress.HostToNetworkOrder((short)4));
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bufferPosition += 2;
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// Ip address count, we can only support ipv4 (blame Nintendo)
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context.Memory.WriteInt32(bufferPosition, addresses != null ? IPAddress.HostToNetworkOrder(addresses.Count) : 0);
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bufferPosition += 4;
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if (addresses != null)
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{
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foreach (IPAddress ip in addresses)
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{
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context.Memory.WriteInt32(bufferPosition, IPAddress.HostToNetworkOrder(BitConverter.ToInt32(ip.GetAddressBytes(), 0)));
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bufferPosition += 4;
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}
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}
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return bufferPosition - originalBufferPosition;
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}
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private string GetGaiStringErrorFromErrorCode(GaiError errorCode)
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{
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if (errorCode > GaiError.Max)
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{
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errorCode = GaiError.Max;
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}
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switch (errorCode)
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{
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case GaiError.AddressFamily:
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return "Address family for hostname not supported";
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case GaiError.Again:
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return "Temporary failure in name resolution";
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case GaiError.BadFlags:
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return "Invalid value for ai_flags";
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case GaiError.Fail:
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return "Non-recoverable failure in name resolution";
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case GaiError.Family:
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return "ai_family not supported";
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case GaiError.Memory:
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return "Memory allocation failure";
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case GaiError.NoData:
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return "No address associated with hostname";
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case GaiError.NoName:
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return "hostname nor servname provided, or not known";
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case GaiError.Service:
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return "servname not supported for ai_socktype";
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case GaiError.SocketType:
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return "ai_socktype not supported";
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case GaiError.System:
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return "System error returned in errno";
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case GaiError.BadHints:
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return "Invalid value for hints";
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case GaiError.Protocol:
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return "Resolved protocol is unknown";
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case GaiError.Overflow:
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return "Argument buffer overflow";
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case GaiError.Max:
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return "Unknown error";
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default:
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return "Success";
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}
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}
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private string GetHostStringErrorFromErrorCode(NetDbError errorCode)
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{
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if (errorCode <= NetDbError.Internal)
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{
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return "Resolver internal error";
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}
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switch (errorCode)
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{
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case NetDbError.Success:
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return "Resolver Error 0 (no error)";
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case NetDbError.HostNotFound:
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return "Unknown host";
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case NetDbError.TryAgain:
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return "Host name lookup failure";
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case NetDbError.NoRecovery:
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return "Unknown server error";
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case NetDbError.NoData:
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return "No address associated with name";
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default:
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return "Unknown resolver error";
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}
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}
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private List<IPAddress> GetIpv4Addresses(IPHostEntry hostEntry)
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{
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List<IPAddress> result = new List<IPAddress>();
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foreach (IPAddress ip in hostEntry.AddressList)
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{
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if (ip.AddressFamily == AddressFamily.InterNetwork)
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result.Add(ip);
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}
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return result;
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}
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// SetDnsAddressesPrivate(u32, buffer<unknown, 5, 0>)
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public long SetDnsAddressesPrivate(ServiceCtx context)
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{
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uint unknown0 = context.RequestData.ReadUInt32();
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long bufferPosition = context.Request.SendBuff[0].Position;
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long bufferSize = context.Request.SendBuff[0].Size;
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// TODO: This is stubbed in 2.0.0+, reverse 1.0.0 version for the sake completeness.
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Logger.PrintStub(LogClass.ServiceSfdnsres, $"Stubbed. Unknown0: {unknown0}");
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return MakeError(ErrorModule.Os, 1023);
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}
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// GetDnsAddressPrivate(u32) -> buffer<unknown, 6, 0>
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public long GetDnsAddressesPrivate(ServiceCtx context)
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{
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uint unknown0 = context.RequestData.ReadUInt32();
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// TODO: This is stubbed in 2.0.0+, reverse 1.0.0 version for the sake completeness.
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Logger.PrintStub(LogClass.ServiceSfdnsres, $"Stubbed. Unknown0: {unknown0}");
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return MakeError(ErrorModule.Os, 1023);
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}
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// GetHostByName(u8, u32, u64, pid, buffer<unknown, 5, 0>) -> (u32, u32, u32, buffer<unknown, 6, 0>)
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public long GetHostByName(ServiceCtx context)
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{
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byte[] rawName = context.Memory.ReadBytes(context.Request.SendBuff[0].Position, context.Request.SendBuff[0].Size);
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string name = Encoding.ASCII.GetString(rawName).TrimEnd('\0');
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// TODO: use params
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bool enableNsdResolve = context.RequestData.ReadInt32() == 1;
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int timeOut = context.RequestData.ReadInt32();
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ulong pidPlaceholder = context.RequestData.ReadUInt64();
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IPHostEntry hostEntry = null;
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NetDbError netDbErrorCode = NetDbError.Success;
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GaiError errno = GaiError.Overflow;
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long serializedSize = 0;
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if (name.Length <= 255)
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{
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try
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{
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hostEntry = Dns.GetHostEntry(name);
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}
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catch (SocketException exception)
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{
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netDbErrorCode = NetDbError.Internal;
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if (exception.ErrorCode == 11001)
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{
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netDbErrorCode = NetDbError.HostNotFound;
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errno = GaiError.NoData;
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}
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else if (exception.ErrorCode == 11002)
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{
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netDbErrorCode = NetDbError.TryAgain;
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}
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else if (exception.ErrorCode == 11003)
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{
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netDbErrorCode = NetDbError.NoRecovery;
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}
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else if (exception.ErrorCode == 11004)
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{
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netDbErrorCode = NetDbError.NoData;
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}
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else if (exception.ErrorCode == 10060)
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{
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errno = GaiError.Again;
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}
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}
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}
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else
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{
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netDbErrorCode = NetDbError.HostNotFound;
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}
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if (hostEntry != null)
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{
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errno = GaiError.Success;
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List<IPAddress> addresses = GetIpv4Addresses(hostEntry);
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if (addresses.Count == 0)
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{
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errno = GaiError.NoData;
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netDbErrorCode = NetDbError.NoAddress;
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}
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else
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{
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serializedSize = SerializeHostEnt(context, hostEntry, addresses);
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}
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}
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context.ResponseData.Write((int)netDbErrorCode);
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context.ResponseData.Write((int)errno);
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context.ResponseData.Write(serializedSize);
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return 0;
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}
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// GetHostByAddr(u32, u32, u32, u64, pid, buffer<unknown, 5, 0>) -> (u32, u32, u32, buffer<unknown, 6, 0>)
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public long GetHostByAddress(ServiceCtx context)
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{
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byte[] rawIp = context.Memory.ReadBytes(context.Request.SendBuff[0].Position, context.Request.SendBuff[0].Size);
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// TODO: use params
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uint socketLength = context.RequestData.ReadUInt32();
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uint type = context.RequestData.ReadUInt32();
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int timeOut = context.RequestData.ReadInt32();
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ulong pidPlaceholder = context.RequestData.ReadUInt64();
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IPHostEntry hostEntry = null;
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NetDbError netDbErrorCode = NetDbError.Success;
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GaiError errno = GaiError.AddressFamily;
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long serializedSize = 0;
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if (rawIp.Length == 4)
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{
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try
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{
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IPAddress address = new IPAddress(rawIp);
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hostEntry = Dns.GetHostEntry(address);
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}
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catch (SocketException exception)
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{
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netDbErrorCode = NetDbError.Internal;
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if (exception.ErrorCode == 11001)
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{
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netDbErrorCode = NetDbError.HostNotFound;
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errno = GaiError.NoData;
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}
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else if (exception.ErrorCode == 11002)
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{
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netDbErrorCode = NetDbError.TryAgain;
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}
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else if (exception.ErrorCode == 11003)
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{
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netDbErrorCode = NetDbError.NoRecovery;
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}
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else if (exception.ErrorCode == 11004)
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{
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netDbErrorCode = NetDbError.NoData;
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}
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else if (exception.ErrorCode == 10060)
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{
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errno = GaiError.Again;
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}
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}
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}
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else
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{
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netDbErrorCode = NetDbError.NoAddress;
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}
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if (hostEntry != null)
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{
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errno = GaiError.Success;
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serializedSize = SerializeHostEnt(context, hostEntry, GetIpv4Addresses(hostEntry));
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}
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context.ResponseData.Write((int)netDbErrorCode);
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context.ResponseData.Write((int)errno);
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context.ResponseData.Write(serializedSize);
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return 0;
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}
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// GetHostStringError(u32) -> buffer<unknown, 6, 0>
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public long GetHostStringError(ServiceCtx context)
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{
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long resultCode = MakeError(ErrorModule.Os, 1023);
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NetDbError errorCode = (NetDbError)context.RequestData.ReadInt32();
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string errorString = GetHostStringErrorFromErrorCode(errorCode);
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if (errorString.Length + 1 <= context.Request.ReceiveBuff[0].Size)
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{
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resultCode = 0;
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context.Memory.WriteBytes(context.Request.ReceiveBuff[0].Position, Encoding.ASCII.GetBytes(errorString + '\0'));
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}
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return resultCode;
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}
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// GetGaiStringError(u32) -> buffer<unknown, 6, 0>
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public long GetGaiStringError(ServiceCtx context)
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{
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long resultCode = MakeError(ErrorModule.Os, 1023);
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GaiError errorCode = (GaiError)context.RequestData.ReadInt32();
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string errorString = GetGaiStringErrorFromErrorCode(errorCode);
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if (errorString.Length + 1 <= context.Request.ReceiveBuff[0].Size)
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{
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resultCode = 0;
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context.Memory.WriteBytes(context.Request.ReceiveBuff[0].Position, Encoding.ASCII.GetBytes(errorString + '\0'));
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}
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return resultCode;
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}
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// RequestCancelHandle(u64, pid) -> u32
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public long RequestCancelHandle(ServiceCtx context)
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{
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ulong unknown0 = context.RequestData.ReadUInt64();
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context.ResponseData.Write(0);
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Logger.PrintStub(LogClass.ServiceSfdnsres, $"Stubbed. Unknown0: {unknown0}");
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return 0;
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}
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// CancelSocketCall(u32, u64, pid)
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public long CancelSocketCall(ServiceCtx context)
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{
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uint unknown0 = context.RequestData.ReadUInt32();
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ulong unknown1 = context.RequestData.ReadUInt64();
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Logger.PrintStub(LogClass.ServiceSfdnsres, $"Stubbed. Unknown0: {unknown0} - " +
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$"Unknown1: {unknown1}");
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return 0;
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}
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// ClearDnsAddresses(u32)
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public long ClearDnsAddresses(ServiceCtx context)
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{
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uint unknown0 = context.RequestData.ReadUInt32();
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Logger.PrintStub(LogClass.ServiceSfdnsres, $"Stubbed. Unknown0: {unknown0}");
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return 0;
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}
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}
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}
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