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Implement IResolver (#442)

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* Implement IResolver

- GetAddrInfo & GetNameInfo still need to be implemented.

* Address comments

* Use MakeError
This commit is contained in:
Thomas Guillemard 2018-10-10 01:15:07 +02:00 committed by Ac_K
parent d5c0de8362
commit b2063be597
3 changed files with 414 additions and 1 deletions
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22
Ryujinx.HLE/HOS/Services/Sfdnsres/GaiError.cs Normal file
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@ -0,0 +1,22 @@
namespace Ryujinx.HLE.HOS.Services.Sfdnsres
{
enum GaiError
{
Success,
AddressFamily,
Again,
BadFlags,
Fail,
Family,
Memory,
NoData,
NoName,
Service,
SocketType,
System,
BadHints,
Protocol,
Overflow,
Max,
}
}

380
Ryujinx.HLE/HOS/Services/Sfdnsres/IResolver.cs
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@ -1,5 +1,11 @@
using Ryujinx.HLE.HOS.Ipc; using Ryujinx.HLE.HOS.Ipc;
using System;
using System.Collections.Generic; using System.Collections.Generic;
using System.Net;
using System.Net.Sockets;
using System.Text;
using static Ryujinx.HLE.HOS.ErrorCode;
namespace Ryujinx.HLE.HOS.Services.Sfdnsres namespace Ryujinx.HLE.HOS.Services.Sfdnsres
{ {
@ -13,8 +19,380 @@ namespace Ryujinx.HLE.HOS.Services.Sfdnsres
{ {
m_Commands = new Dictionary<int, ServiceProcessRequest>() m_Commands = new Dictionary<int, ServiceProcessRequest>()
{ {
//... { 0, SetDnsAddressesPrivate },
{ 1, GetDnsAddressesPrivate },
{ 2, GetHostByName },
{ 3, GetHostByAddress },
{ 4, GetHostStringError },
{ 5, GetGaiStringError },
{ 8, RequestCancelHandle },
{ 9, CancelSocketCall },
{ 11, ClearDnsAddresses },
}; };
} }
private long SerializeHostEnt(ServiceCtx Context, IPHostEntry HostEntry, List<IPAddress> Addresses = null)
{
long OriginalBufferPosition = Context.Request.ReceiveBuff[0].Position;
long BufferPosition = OriginalBufferPosition;
long BufferSize = Context.Request.ReceiveBuff[0].Size;
string HostName = HostEntry.HostName + '\0';
// h_name
Context.Memory.WriteBytes(BufferPosition, Encoding.ASCII.GetBytes(HostName));
BufferPosition += HostName.Length;
// h_aliases list size
Context.Memory.WriteInt32(BufferPosition, IPAddress.HostToNetworkOrder(HostEntry.Aliases.Length));
BufferPosition += 4;
// Actual aliases
foreach (string Alias in HostEntry.Aliases)
{
Context.Memory.WriteBytes(BufferPosition, Encoding.ASCII.GetBytes(Alias + '\0'));
BufferPosition += Alias.Length + 1;
}
// h_addrtype but it's a short (also only support IPv4)
Context.Memory.WriteInt16(BufferPosition, IPAddress.HostToNetworkOrder((short)2));
BufferPosition += 2;
// h_length but it's a short
Context.Memory.WriteInt16(BufferPosition, IPAddress.HostToNetworkOrder((short)4));
BufferPosition += 2;
// Ip address count, we can only support ipv4 (blame Nintendo)
Context.Memory.WriteInt32(BufferPosition, Addresses != null ? IPAddress.HostToNetworkOrder(Addresses.Count) : 0);
BufferPosition += 4;
if (Addresses != null)
{
foreach (IPAddress Ip in Addresses)
{
Context.Memory.WriteInt32(BufferPosition, IPAddress.HostToNetworkOrder(BitConverter.ToInt32(Ip.GetAddressBytes(), 0)));
BufferPosition += 4;
}
}
return BufferPosition - OriginalBufferPosition;
}
private string GetGaiStringErrorFromErrorCode(GaiError ErrorCode)
{
if (ErrorCode > GaiError.Max)
{
ErrorCode = GaiError.Max;
}
switch (ErrorCode)
{
case GaiError.AddressFamily:
return "Address family for hostname not supported";
case GaiError.Again:
return "Temporary failure in name resolution";
case GaiError.BadFlags:
return "Invalid value for ai_flags";
case GaiError.Fail:
return "Non-recoverable failure in name resolution";
case GaiError.Family:
return "ai_family not supported";
case GaiError.Memory:
return "Memory allocation failure";
case GaiError.NoData:
return "No address associated with hostname";
case GaiError.NoName:
return "hostname nor servname provided, or not known";
case GaiError.Service:
return "servname not supported for ai_socktype";
case GaiError.SocketType:
return "ai_socktype not supported";
case GaiError.System:
return "System error returned in errno";
case GaiError.BadHints:
return "Invalid value for hints";
case GaiError.Protocol:
return "Resolved protocol is unknown";
case GaiError.Overflow:
return "Argument buffer overflow";
case GaiError.Max:
return "Unknown error";
default:
return "Success";
}
}
private string GetHostStringErrorFromErrorCode(NetDBError ErrorCode)
{
if (ErrorCode <= NetDBError.Internal)
{
return "Resolver internal error";
}
switch (ErrorCode)
{
case NetDBError.Success:
return "Resolver Error 0 (no error)";
case NetDBError.HostNotFound:
return "Unknown host";
case NetDBError.TryAgain:
return "Host name lookup failure";
case NetDBError.NoRecovery:
return "Unknown server error";
case NetDBError.NoData:
return "No address associated with name";
default:
return "Unknown resolver error";
}
}
private List<IPAddress> GetIPV4Addresses(IPHostEntry HostEntry)
{
List<IPAddress> Result = new List<IPAddress>();
foreach (IPAddress Ip in HostEntry.AddressList)
{
if (Ip.AddressFamily == AddressFamily.InterNetwork)
Result.Add(Ip);
}
return Result;
}
// SetDnsAddressesPrivate(u32, buffer<unknown, 5, 0>)
public long SetDnsAddressesPrivate(ServiceCtx Context)
{
uint Unknown0 = Context.RequestData.ReadUInt32();
long BufferPosition = Context.Request.SendBuff[0].Position;
long BufferSize = Context.Request.SendBuff[0].Size;
// TODO: This is stubbed in 2.0.0+, reverse 1.0.0 version for the sake completeness.
Context.Device.Log.PrintStub(Logging.LogClass.ServiceSfdnsres, $"Stubbed. Unknown0: {Unknown0}");
return MakeError(ErrorModule.Os, 1023);
}
// GetDnsAddressPrivate(u32) -> buffer<unknown, 6, 0>
public long GetDnsAddressesPrivate(ServiceCtx Context)
{
uint Unknown0 = Context.RequestData.ReadUInt32();
// TODO: This is stubbed in 2.0.0+, reverse 1.0.0 version for the sake completeness.
Context.Device.Log.PrintStub(Logging.LogClass.ServiceSfdnsres, $"Stubbed. Unknown0: {Unknown0}");
return MakeError(ErrorModule.Os, 1023);
}
// GetHostByName(u8, u32, u64, pid, buffer<unknown, 5, 0>) -> (u32, u32, u32, buffer<unknown, 6, 0>)
public long GetHostByName(ServiceCtx Context)
{
byte[] RawName = Context.Memory.ReadBytes(Context.Request.SendBuff[0].Position, Context.Request.SendBuff[0].Size);
string Name = Encoding.ASCII.GetString(RawName).TrimEnd('\0');
// TODO: use params
bool EnableNsdResolve = Context.RequestData.ReadInt32() == 1;
int TimeOut = Context.RequestData.ReadInt32();
ulong PidPlaceholder = Context.RequestData.ReadUInt64();
IPHostEntry HostEntry = null;
NetDBError NetDBErrorCode = NetDBError.Success;
GaiError Errno = GaiError.Overflow;
long SerializedSize = 0;
if (Name.Length <= 255)
{
try
{
HostEntry = Dns.GetHostEntry(Name);
}
catch (SocketException Exception)
{
NetDBErrorCode = NetDBError.Internal;
if (Exception.ErrorCode == 11001)
{
NetDBErrorCode = NetDBError.HostNotFound;
Errno = GaiError.NoData;
}
else if (Exception.ErrorCode == 11002)
{
NetDBErrorCode = NetDBError.TryAgain;
}
else if (Exception.ErrorCode == 11003)
{
NetDBErrorCode = NetDBError.NoRecovery;
}
else if (Exception.ErrorCode == 11004)
{
NetDBErrorCode = NetDBError.NoData;
}
else if (Exception.ErrorCode == 10060)
{
Errno = GaiError.Again;
}
}
}
else
{
NetDBErrorCode = NetDBError.HostNotFound;
}
if (HostEntry != null)
{
Errno = GaiError.Success;
List<IPAddress> Addresses = GetIPV4Addresses(HostEntry);
if (Addresses.Count == 0)
{
Errno = GaiError.NoData;
NetDBErrorCode = NetDBError.NoAddress;
}
else
{
SerializedSize = SerializeHostEnt(Context, HostEntry, Addresses);
}
}
Context.ResponseData.Write((int)NetDBErrorCode);
Context.ResponseData.Write((int)Errno);
Context.ResponseData.Write(SerializedSize);
return 0;
}
// GetHostByAddr(u32, u32, u32, u64, pid, buffer<unknown, 5, 0>) -> (u32, u32, u32, buffer<unknown, 6, 0>)
public long GetHostByAddress(ServiceCtx Context)
{
byte[] RawIp = Context.Memory.ReadBytes(Context.Request.SendBuff[0].Position, Context.Request.SendBuff[0].Size);
// TODO: use params
uint SocketLength = Context.RequestData.ReadUInt32();
uint Type = Context.RequestData.ReadUInt32();
int TimeOut = Context.RequestData.ReadInt32();
ulong PidPlaceholder = Context.RequestData.ReadUInt64();
IPHostEntry HostEntry = null;
NetDBError NetDBErrorCode = NetDBError.Success;
GaiError Errno = GaiError.AddressFamily;
long SerializedSize = 0;
if (RawIp.Length == 4)
{
try
{
IPAddress Address = new IPAddress(RawIp);
HostEntry = Dns.GetHostEntry(Address);
}
catch (SocketException Exception)
{
NetDBErrorCode = NetDBError.Internal;
if (Exception.ErrorCode == 11001)
{
NetDBErrorCode = NetDBError.HostNotFound;
Errno = GaiError.NoData;
}
else if (Exception.ErrorCode == 11002)
{
NetDBErrorCode = NetDBError.TryAgain;
}
else if (Exception.ErrorCode == 11003)
{
NetDBErrorCode = NetDBError.NoRecovery;
}
else if (Exception.ErrorCode == 11004)
{
NetDBErrorCode = NetDBError.NoData;
}
else if (Exception.ErrorCode == 10060)
{
Errno = GaiError.Again;
}
}
}
else
{
NetDBErrorCode = NetDBError.NoAddress;
}
if (HostEntry != null)
{
Errno = GaiError.Success;
SerializedSize = SerializeHostEnt(Context, HostEntry, GetIPV4Addresses(HostEntry));
}
Context.ResponseData.Write((int)NetDBErrorCode);
Context.ResponseData.Write((int)Errno);
Context.ResponseData.Write(SerializedSize);
return 0;
}
// GetHostStringError(u32) -> buffer<unknown, 6, 0>
public long GetHostStringError(ServiceCtx Context)
{
long ResultCode = MakeError(ErrorModule.Os, 1023);
NetDBError ErrorCode = (NetDBError)Context.RequestData.ReadInt32();
string ErrorString = GetHostStringErrorFromErrorCode(ErrorCode);
if (ErrorString.Length + 1 <= Context.Request.ReceiveBuff[0].Size)
{
ResultCode = 0;
Context.Memory.WriteBytes(Context.Request.ReceiveBuff[0].Position, Encoding.ASCII.GetBytes(ErrorString + '\0'));
}
return ResultCode;
}
// GetGaiStringError(u32) -> buffer<unknown, 6, 0>
public long GetGaiStringError(ServiceCtx Context)
{
long ResultCode = MakeError(ErrorModule.Os, 1023);
GaiError ErrorCode = (GaiError)Context.RequestData.ReadInt32();
string ErrorString = GetGaiStringErrorFromErrorCode(ErrorCode);
if (ErrorString.Length + 1 <= Context.Request.ReceiveBuff[0].Size)
{
ResultCode = 0;
Context.Memory.WriteBytes(Context.Request.ReceiveBuff[0].Position, Encoding.ASCII.GetBytes(ErrorString + '\0'));
}
return ResultCode;
}
// RequestCancelHandle(u64, pid) -> u32
public long RequestCancelHandle(ServiceCtx Context)
{
ulong Unknown0 = Context.RequestData.ReadUInt64();
Context.ResponseData.Write(0);
Context.Device.Log.PrintStub(Logging.LogClass.ServiceSfdnsres, $"Stubbed. Unknown0: {Unknown0}");
return 0;
}
// CancelSocketCall(u32, u64, pid)
public long CancelSocketCall(ServiceCtx Context)
{
uint Unknown0 = Context.RequestData.ReadUInt32();
ulong Unknown1 = Context.RequestData.ReadUInt64();
Context.Device.Log.PrintStub(Logging.LogClass.ServiceSfdnsres, $"Stubbed. Unknown0: {Unknown0} - " +
$"Unknown1: {Unknown1}");
return 0;
}
// ClearDnsAddresses(u32)
public long ClearDnsAddresses(ServiceCtx Context)
{
uint Unknown0 = Context.RequestData.ReadUInt32();
Context.Device.Log.PrintStub(Logging.LogClass.ServiceSfdnsres, $"Stubbed. Unknown0: {Unknown0}");
return 0;
}
} }
} }

13
Ryujinx.HLE/HOS/Services/Sfdnsres/NetDBError.cs Normal file
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namespace Ryujinx.HLE.HOS.Services.Sfdnsres
{
enum NetDBError
{
Internal = -1,
Success,
HostNotFound,
TryAgain,
NoRecovery,
NoData,
NoAddress = NoData,
}
}