189c0c9c72
* Implement Modding Support * Executables: Rewrite to use contiguous mem and Spans * Reorder ExeFs, Npdm, ControlData and SaveData calls After discussion with gdkchan, it was decided it's best to call LoadExeFs after all other loads are done as it starts the guest process. * Build RomFs manually instead of Layering FS Layered FS approach has considerable latency when building the final romfs. So, we manually replace files in a single romfs instance. * Add RomFs modding via storage file * Fix and cleanup MemPatch * Add dynamically loaded NRO patching * Support exefs file replacement * Rewrite ModLoader to use mods-search architecture * Disable PPTC when exefs patches are detected Disable PPTC on exefs replacements too * Rewrite ModLoader, again * Increased maintainability and matches Atmosphere closely * Creates base mods structure if it doesn't exist * Add Exefs partition replacement * IPSwitch: Fix nsobid parsing * Move mod logs to new LogClass * Allow custom suffixes to title dirs again * Address nits * Add a per-App "Open Mods Directory" context menu item Creates the path if not present. * Normalize tooltips verbiage * Use LocalStorage and remove unused namespaces
583 lines
18 KiB
C#
583 lines
18 KiB
C#
using LibHac.FsSystem;
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using Ryujinx.Common;
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using Ryujinx.Cpu;
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using Ryujinx.HLE.HOS.Kernel.Common;
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using Ryujinx.HLE.HOS.Kernel.Memory;
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using Ryujinx.HLE.HOS.Kernel.Process;
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using Ryujinx.HLE.Loaders.Executables;
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using Ryujinx.HLE.Utilities;
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.Linq;
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using System.Security.Cryptography;
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namespace Ryujinx.HLE.HOS.Services.Ro
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{
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[Service("ldr:ro")]
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[Service("ro:1")] // 7.0.0+
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class IRoInterface : IpcService, IDisposable
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{
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private const int MaxNrr = 0x40;
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private const int MaxNro = 0x40;
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private const int MaxMapRetries = 0x200;
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private const int GuardPagesSize = 0x4000;
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private const uint NrrMagic = 0x3052524E;
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private const uint NroMagic = 0x304F524E;
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private List<NrrInfo> _nrrInfos;
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private List<NroInfo> _nroInfos;
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private KProcess _owner;
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private static Random _random = new Random();
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public IRoInterface(ServiceCtx context)
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{
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_nrrInfos = new List<NrrInfo>(MaxNrr);
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_nroInfos = new List<NroInfo>(MaxNro);
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_owner = null;
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}
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private ResultCode ParseNrr(out NrrInfo nrrInfo, ServiceCtx context, long nrrAddress, long nrrSize)
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{
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nrrInfo = null;
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if (nrrSize == 0 || nrrAddress + nrrSize <= nrrAddress || (nrrSize & 0xFFF) != 0)
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{
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return ResultCode.InvalidSize;
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}
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else if ((nrrAddress & 0xFFF) != 0)
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{
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return ResultCode.InvalidAddress;
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}
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StructReader reader = new StructReader(context.Memory, nrrAddress);
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NrrHeader header = reader.Read<NrrHeader>();
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if (header.Magic != NrrMagic)
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{
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return ResultCode.InvalidNrr;
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}
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else if (header.NrrSize != nrrSize)
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{
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return ResultCode.InvalidSize;
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}
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List<byte[]> hashes = new List<byte[]>();
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for (int i = 0; i < header.HashCount; i++)
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{
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byte[] temp = new byte[0x20];
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context.Memory.Read((ulong)(nrrAddress + header.HashOffset + (i * 0x20)), temp);
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hashes.Add(temp);
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}
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nrrInfo = new NrrInfo(nrrAddress, header, hashes);
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return ResultCode.Success;
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}
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public bool IsNroHashPresent(byte[] nroHash)
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{
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foreach (NrrInfo info in _nrrInfos)
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{
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foreach (byte[] hash in info.Hashes)
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{
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if (hash.SequenceEqual(nroHash))
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{
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return true;
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}
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}
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}
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return false;
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}
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public bool IsNroLoaded(byte[] nroHash)
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{
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foreach (NroInfo info in _nroInfos)
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{
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if (info.Hash.SequenceEqual(nroHash))
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{
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return true;
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}
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}
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return false;
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}
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public ResultCode ParseNro(out NroInfo res, ServiceCtx context, ulong nroAddress, ulong nroSize, ulong bssAddress, ulong bssSize)
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{
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res = null;
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if (_nroInfos.Count >= MaxNro)
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{
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return ResultCode.TooManyNro;
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}
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else if (nroSize == 0 || nroAddress + nroSize <= nroAddress || (nroSize & 0xFFF) != 0)
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{
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return ResultCode.InvalidSize;
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}
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else if (bssSize != 0 && bssAddress + bssSize <= bssAddress)
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{
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return ResultCode.InvalidSize;
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}
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else if ((nroAddress & 0xFFF) != 0)
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{
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return ResultCode.InvalidAddress;
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}
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uint magic = context.Memory.Read<uint>(nroAddress + 0x10);
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uint nroFileSize = context.Memory.Read<uint>(nroAddress + 0x18);
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if (magic != NroMagic || nroSize != nroFileSize)
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{
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return ResultCode.InvalidNro;
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}
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byte[] nroData = new byte[nroSize];
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context.Memory.Read(nroAddress, nroData);
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byte[] nroHash = null;
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MemoryStream stream = new MemoryStream(nroData);
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using (SHA256 hasher = SHA256.Create())
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{
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nroHash = hasher.ComputeHash(stream);
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}
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if (!IsNroHashPresent(nroHash))
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{
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return ResultCode.NotRegistered;
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}
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if (IsNroLoaded(nroHash))
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{
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return ResultCode.AlreadyLoaded;
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}
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stream.Position = 0;
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NroExecutable nro = new NroExecutable(stream.AsStorage(), nroAddress, bssAddress);
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// Check if everything is page align.
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if ((nro.Text.Length & 0xFFF) != 0 || (nro.Ro.Length & 0xFFF) != 0 ||
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(nro.Data.Length & 0xFFF) != 0 || (nro.BssSize & 0xFFF) != 0)
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{
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return ResultCode.InvalidNro;
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}
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// Check if everything is contiguous.
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if (nro.RoOffset != nro.TextOffset + nro.Text.Length ||
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nro.DataOffset != nro.RoOffset + nro.Ro.Length ||
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nroFileSize != nro.DataOffset + nro.Data.Length)
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{
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return ResultCode.InvalidNro;
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}
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// Check the bss size match.
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if ((ulong)nro.BssSize != bssSize)
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{
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return ResultCode.InvalidNro;
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}
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int totalSize = nro.Text.Length + nro.Ro.Length + nro.Data.Length + nro.BssSize;
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// Apply patches
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context.Device.FileSystem.ModLoader.ApplyNroPatches(nro);
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res = new NroInfo(
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nro,
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nroHash,
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nroAddress,
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nroSize,
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bssAddress,
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bssSize,
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(ulong)totalSize);
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return ResultCode.Success;
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}
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private ResultCode MapNro(KProcess process, NroInfo info, out ulong nroMappedAddress)
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{
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KMemoryManager memMgr = process.MemoryManager;
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int retryCount = 0;
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nroMappedAddress = 0;
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while (retryCount++ < MaxMapRetries)
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{
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ResultCode result = MapCodeMemoryInProcess(process, info.NroAddress, info.NroSize, out nroMappedAddress);
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if (result != ResultCode.Success)
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{
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return result;
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}
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if (info.BssSize > 0)
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{
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KernelResult bssMappingResult = memMgr.MapProcessCodeMemory(nroMappedAddress + info.NroSize, info.BssAddress, info.BssSize);
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if (bssMappingResult == KernelResult.InvalidMemState)
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{
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memMgr.UnmapProcessCodeMemory(nroMappedAddress + info.NroSize, info.BssAddress, info.BssSize);
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memMgr.UnmapProcessCodeMemory(nroMappedAddress, info.NroAddress, info.NroSize);
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continue;
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}
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else if (bssMappingResult != KernelResult.Success)
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{
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memMgr.UnmapProcessCodeMemory(nroMappedAddress + info.NroSize, info.BssAddress, info.BssSize);
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memMgr.UnmapProcessCodeMemory(nroMappedAddress, info.NroAddress, info.NroSize);
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return (ResultCode)bssMappingResult;
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}
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}
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if (CanAddGuardRegionsInProcess(process, nroMappedAddress, info.TotalSize))
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{
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return ResultCode.Success;
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}
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}
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return ResultCode.InsufficientAddressSpace;
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}
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private bool CanAddGuardRegionsInProcess(KProcess process, ulong baseAddress, ulong size)
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{
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KMemoryManager memMgr = process.MemoryManager;
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KMemoryInfo memInfo = memMgr.QueryMemory(baseAddress - 1);
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if (memInfo.State == MemoryState.Unmapped && baseAddress - GuardPagesSize >= memInfo.Address)
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{
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memInfo = memMgr.QueryMemory(baseAddress + size);
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if (memInfo.State == MemoryState.Unmapped)
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{
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return baseAddress + size + GuardPagesSize <= memInfo.Address + memInfo.Size;
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}
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}
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return false;
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}
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private ResultCode MapCodeMemoryInProcess(KProcess process, ulong baseAddress, ulong size, out ulong targetAddress)
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{
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KMemoryManager memMgr = process.MemoryManager;
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targetAddress = 0;
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int retryCount;
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ulong addressSpacePageLimit = (memMgr.GetAddrSpaceSize() - size) >> 12;
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for (retryCount = 0; retryCount < MaxMapRetries; retryCount++)
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{
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while (true)
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{
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ulong randomOffset = (ulong)(uint)_random.Next(0, (int)addressSpacePageLimit) << 12;
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targetAddress = memMgr.GetAddrSpaceBaseAddr() + randomOffset;
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if (memMgr.InsideAddrSpace(targetAddress, size) && !memMgr.InsideHeapRegion(targetAddress, size) && !memMgr.InsideAliasRegion(targetAddress, size))
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{
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break;
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}
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}
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KernelResult result = memMgr.MapProcessCodeMemory(targetAddress, baseAddress, size);
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if (result == KernelResult.InvalidMemState)
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{
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continue;
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}
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else if (result != KernelResult.Success)
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{
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return (ResultCode)result;
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}
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if (!CanAddGuardRegionsInProcess(process, targetAddress, size))
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{
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continue;
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}
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return ResultCode.Success;
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}
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if (retryCount == MaxMapRetries)
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{
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return ResultCode.InsufficientAddressSpace;
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}
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return ResultCode.Success;
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}
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private KernelResult SetNroMemoryPermissions(KProcess process, IExecutable relocatableObject, ulong baseAddress)
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{
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ulong textStart = baseAddress + (ulong)relocatableObject.TextOffset;
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ulong roStart = baseAddress + (ulong)relocatableObject.RoOffset;
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ulong dataStart = baseAddress + (ulong)relocatableObject.DataOffset;
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ulong bssStart = dataStart + (ulong)relocatableObject.Data.Length;
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ulong bssEnd = BitUtils.AlignUp(bssStart + (ulong)relocatableObject.BssSize, KMemoryManager.PageSize);
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process.CpuMemory.Write(textStart, relocatableObject.Text);
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process.CpuMemory.Write(roStart, relocatableObject.Ro);
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process.CpuMemory.Write(dataStart, relocatableObject.Data);
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MemoryHelper.FillWithZeros(process.CpuMemory, (long)bssStart, (int)(bssEnd - bssStart));
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KernelResult result;
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result = process.MemoryManager.SetProcessMemoryPermission(textStart, roStart - textStart, MemoryPermission.ReadAndExecute);
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if (result != KernelResult.Success)
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{
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return result;
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}
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result = process.MemoryManager.SetProcessMemoryPermission(roStart, dataStart - roStart, MemoryPermission.Read);
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if (result != KernelResult.Success)
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{
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return result;
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}
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return process.MemoryManager.SetProcessMemoryPermission(dataStart, bssEnd - dataStart, MemoryPermission.ReadAndWrite);
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}
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private ResultCode RemoveNrrInfo(long nrrAddress)
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{
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foreach (NrrInfo info in _nrrInfos)
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{
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if (info.NrrAddress == nrrAddress)
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{
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_nrrInfos.Remove(info);
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return ResultCode.Success;
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}
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}
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return ResultCode.NotLoaded;
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}
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private ResultCode RemoveNroInfo(ulong nroMappedAddress)
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{
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foreach (NroInfo info in _nroInfos)
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{
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if (info.NroMappedAddress == nroMappedAddress)
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{
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_nroInfos.Remove(info);
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return UnmapNroFromInfo(info);
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}
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}
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return ResultCode.NotLoaded;
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}
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private ResultCode UnmapNroFromInfo(NroInfo info)
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{
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ulong textSize = (ulong)info.Executable.Text.Length;
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ulong roSize = (ulong)info.Executable.Ro.Length;
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ulong dataSize = (ulong)info.Executable.Data.Length;
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ulong bssSize = (ulong)info.Executable.BssSize;
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KernelResult result = KernelResult.Success;
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if (info.Executable.BssSize != 0)
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{
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result = _owner.MemoryManager.UnmapProcessCodeMemory(
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info.NroMappedAddress + textSize + roSize + dataSize,
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info.Executable.BssAddress,
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bssSize);
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}
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if (result == KernelResult.Success)
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{
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result = _owner.MemoryManager.UnmapProcessCodeMemory(
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info.NroMappedAddress + textSize + roSize,
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info.Executable.SourceAddress + textSize + roSize,
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dataSize);
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if (result == KernelResult.Success)
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{
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result = _owner.MemoryManager.UnmapProcessCodeMemory(
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info.NroMappedAddress,
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info.Executable.SourceAddress,
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textSize + roSize);
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}
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}
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return (ResultCode)result;
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}
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private ResultCode IsInitialized(KProcess process)
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{
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if (_owner != null && _owner.Pid == process.Pid)
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{
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return ResultCode.Success;
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}
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return ResultCode.InvalidProcess;
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}
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[Command(0)]
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// LoadNro(u64, u64, u64, u64, u64, pid) -> u64
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public ResultCode LoadNro(ServiceCtx context)
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{
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ResultCode result = IsInitialized(context.Process);
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// Zero
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context.RequestData.ReadUInt64();
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ulong nroHeapAddress = context.RequestData.ReadUInt64();
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ulong nroSize = context.RequestData.ReadUInt64();
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ulong bssHeapAddress = context.RequestData.ReadUInt64();
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ulong bssSize = context.RequestData.ReadUInt64();
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ulong nroMappedAddress = 0;
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if (result == ResultCode.Success)
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{
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NroInfo info;
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result = ParseNro(out info, context, nroHeapAddress, nroSize, bssHeapAddress, bssSize);
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if (result == ResultCode.Success)
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{
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result = MapNro(context.Process, info, out nroMappedAddress);
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if (result == ResultCode.Success)
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{
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result = (ResultCode)SetNroMemoryPermissions(context.Process, info.Executable, nroMappedAddress);
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if (result == ResultCode.Success)
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{
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info.NroMappedAddress = nroMappedAddress;
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_nroInfos.Add(info);
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}
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}
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}
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}
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context.ResponseData.Write(nroMappedAddress);
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return result;
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}
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[Command(1)]
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// UnloadNro(u64, u64, pid)
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public ResultCode UnloadNro(ServiceCtx context)
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{
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ResultCode result = IsInitialized(context.Process);
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// Zero
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context.RequestData.ReadUInt64();
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ulong nroMappedAddress = context.RequestData.ReadUInt64();
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if (result == ResultCode.Success)
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{
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if ((nroMappedAddress & 0xFFF) != 0)
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{
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return ResultCode.InvalidAddress;
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}
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result = RemoveNroInfo(nroMappedAddress);
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}
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return result;
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}
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[Command(2)]
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// LoadNrr(u64, u64, u64, pid)
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public ResultCode LoadNrr(ServiceCtx context)
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{
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ResultCode result = IsInitialized(context.Process);
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// pid placeholder, zero
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context.RequestData.ReadUInt64();
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long nrrAddress = context.RequestData.ReadInt64();
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long nrrSize = context.RequestData.ReadInt64();
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if (result == ResultCode.Success)
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{
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NrrInfo info;
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result = ParseNrr(out info, context, nrrAddress, nrrSize);
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if (result == ResultCode.Success)
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{
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if (_nrrInfos.Count >= MaxNrr)
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{
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result = ResultCode.NotLoaded;
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}
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else
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{
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_nrrInfos.Add(info);
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}
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}
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}
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return result;
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}
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[Command(3)]
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// UnloadNrr(u64, u64, pid)
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public ResultCode UnloadNrr(ServiceCtx context)
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{
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ResultCode result = IsInitialized(context.Process);
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// pid placeholder, zero
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context.RequestData.ReadUInt64();
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long nrrHeapAddress = context.RequestData.ReadInt64();
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if (result == ResultCode.Success)
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{
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if ((nrrHeapAddress & 0xFFF) != 0)
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|
{
|
|
return ResultCode.InvalidAddress;
|
|
}
|
|
|
|
result = RemoveNrrInfo(nrrHeapAddress);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
[Command(4)]
|
|
// Initialize(u64, pid, KObject)
|
|
public ResultCode Initialize(ServiceCtx context)
|
|
{
|
|
if (_owner != null)
|
|
{
|
|
return ResultCode.InvalidSession;
|
|
}
|
|
|
|
_owner = context.Process;
|
|
|
|
return ResultCode.Success;
|
|
}
|
|
|
|
public void Dispose()
|
|
{
|
|
foreach (NroInfo info in _nroInfos)
|
|
{
|
|
UnmapNroFromInfo(info);
|
|
}
|
|
|
|
_nroInfos.Clear();
|
|
}
|
|
}
|
|
} |