Ryujinx/Ryujinx.HLE/HOS/Services/Sockets/Nsd/Manager/FqdnResolver.cs
Mary 60f03cb78a
sfdnsres: Implement NSD resolution (#2962)
This fix a missing implementation usage of NSD on IResolver when
requested on GetAddrInfoRequest* and GetHostByNameRequest*.
2022-01-03 22:12:50 +01:00

97 lines
3.4 KiB
C#

using System.Text;
namespace Ryujinx.HLE.HOS.Services.Sockets.Nsd.Manager
{
class FqdnResolver
{
private const string _dummyAddress = "unknown.dummy.nintendo.net";
public ResultCode GetEnvironmentIdentifier(out string identifier)
{
if (IManager.NsdSettings.TestMode)
{
identifier = "err";
return ResultCode.InvalidSettingsValue;
}
else
{
identifier = IManager.NsdSettings.Environment;
}
return ResultCode.Success;
}
public static ResultCode Resolve(string address, out string resolvedAddress)
{
if (address == "api.sect.srv.nintendo.net" ||
address == "ctest.cdn.nintendo.net" ||
address == "ctest.cdn.n.nintendoswitch.cn" ||
address == "unknown.dummy.nintendo.net")
{
resolvedAddress = address;
}
else
{
// TODO: Load Environment from the savedata.
address = address.Replace("%", IManager.NsdSettings.Environment);
resolvedAddress = "";
if (IManager.NsdSettings == null)
{
return ResultCode.SettingsNotInitialized;
}
if (!IManager.NsdSettings.Initialized)
{
return ResultCode.SettingsNotLoaded;
}
resolvedAddress = address switch
{
"e97b8a9d672e4ce4845ec6947cd66ef6-sb-api.accounts.nintendo.com" => "e97b8a9d672e4ce4845ec6947cd66ef6-sb.baas.nintendo.com", // dp1 environment
"api.accounts.nintendo.com" => "e0d67c509fb203858ebcb2fe3f88c2aa.baas.nintendo.com", // dp1 environment
"e97b8a9d672e4ce4845ec6947cd66ef6-sb.accounts.nintendo.com" => "e97b8a9d672e4ce4845ec6947cd66ef6-sb.baas.nintendo.com", // lp1 environment
"accounts.nintendo.com" => "e0d67c509fb203858ebcb2fe3f88c2aa.baas.nintendo.com", // lp1 environment
/*
// TODO: Determine fields of the struct.
this + 0xEB8 => this + 0xEB8 + 0x300
this + 0x2BE8 => this + 0x2BE8 + 0x300
*/
_ => address,
};
}
return ResultCode.Success;
}
public ResultCode ResolveEx(ServiceCtx context, out ResultCode resultCode, out string resolvedAddress)
{
ulong inputPosition = context.Request.SendBuff[0].Position;
ulong inputSize = context.Request.SendBuff[0].Size;
byte[] addressBuffer = new byte[inputSize];
context.Memory.Read(inputPosition, addressBuffer);
string address = Encoding.UTF8.GetString(addressBuffer).TrimEnd('\0');
resultCode = Resolve(address, out resolvedAddress);
if (resultCode != ResultCode.Success)
{
resolvedAddress = _dummyAddress;
}
if (IManager.NsdSettings.TestMode)
{
return ResultCode.Success;
}
else
{
return resultCode;
}
}
}
}