From b2063be59747e65434b3b99a379566d640f05995 Mon Sep 17 00:00:00 2001 From: Thomas Guillemard Date: Wed, 10 Oct 2018 01:15:07 +0200 Subject: [PATCH] Implement IResolver (#442) * Implement IResolver - GetAddrInfo & GetNameInfo still need to be implemented. * Address comments * Use MakeError --- Ryujinx.HLE/HOS/Services/Sfdnsres/GaiError.cs | 22 + .../HOS/Services/Sfdnsres/IResolver.cs | 380 +++++++++++++++++- .../HOS/Services/Sfdnsres/NetDBError.cs | 13 + 3 files changed, 414 insertions(+), 1 deletion(-) create mode 100644 Ryujinx.HLE/HOS/Services/Sfdnsres/GaiError.cs create mode 100644 Ryujinx.HLE/HOS/Services/Sfdnsres/NetDBError.cs diff --git a/Ryujinx.HLE/HOS/Services/Sfdnsres/GaiError.cs b/Ryujinx.HLE/HOS/Services/Sfdnsres/GaiError.cs new file mode 100644 index 00000000..65d54577 --- /dev/null +++ b/Ryujinx.HLE/HOS/Services/Sfdnsres/GaiError.cs @@ -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, + } +} diff --git a/Ryujinx.HLE/HOS/Services/Sfdnsres/IResolver.cs b/Ryujinx.HLE/HOS/Services/Sfdnsres/IResolver.cs index 26dbedf4..0ca43eda 100644 --- a/Ryujinx.HLE/HOS/Services/Sfdnsres/IResolver.cs +++ b/Ryujinx.HLE/HOS/Services/Sfdnsres/IResolver.cs @@ -1,5 +1,11 @@ using Ryujinx.HLE.HOS.Ipc; +using System; 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 { @@ -13,8 +19,380 @@ namespace Ryujinx.HLE.HOS.Services.Sfdnsres { m_Commands = new Dictionary() { - //... + { 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 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 GetIPV4Addresses(IPHostEntry HostEntry) + { + List Result = new List(); + foreach (IPAddress Ip in HostEntry.AddressList) + { + if (Ip.AddressFamily == AddressFamily.InterNetwork) + Result.Add(Ip); + } + return Result; + } + + // SetDnsAddressesPrivate(u32, buffer) + 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 + 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) -> (u32, u32, u32, buffer) + 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 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) -> (u32, u32, u32, buffer) + 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 + 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 + 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; + } } } diff --git a/Ryujinx.HLE/HOS/Services/Sfdnsres/NetDBError.cs b/Ryujinx.HLE/HOS/Services/Sfdnsres/NetDBError.cs new file mode 100644 index 00000000..6c1b7825 --- /dev/null +++ b/Ryujinx.HLE/HOS/Services/Sfdnsres/NetDBError.cs @@ -0,0 +1,13 @@ +namespace Ryujinx.HLE.HOS.Services.Sfdnsres +{ + enum NetDBError + { + Internal = -1, + Success, + HostNotFound, + TryAgain, + NoRecovery, + NoData, + NoAddress = NoData, + } +}