1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
|
using LibHac;
using LibHac.Common;
using LibHac.Common.Keys;
using LibHac.Fs;
using LibHac.FsSrv.Impl;
using LibHac.FsSrv.Sf;
using LibHac.FsSystem;
using LibHac.FsSystem.NcaUtils;
using LibHac.Spl;
using System;
using System.IO;
using System.Runtime.InteropServices;
using Path = System.IO.Path;
namespace Ryujinx.HLE.HOS.Services.Fs.FileSystemProxy
{
static class FileSystemProxyHelper
{
public static ResultCode OpenNsp(ServiceCtx context, string pfsPath, out IFileSystem openedFileSystem)
{
openedFileSystem = null;
try
{
LocalStorage storage = new LocalStorage(pfsPath, FileAccess.Read, FileMode.Open);
ReferenceCountedDisposable<LibHac.Fs.Fsa.IFileSystem> nsp = new(new PartitionFileSystem(storage));
ImportTitleKeysFromNsp(nsp.Target, context.Device.System.KeySet);
openedFileSystem = new IFileSystem(FileSystemInterfaceAdapter.CreateShared(ref nsp));
}
catch (HorizonResultException ex)
{
return (ResultCode)ex.ResultValue.Value;
}
return ResultCode.Success;
}
public static ResultCode OpenNcaFs(ServiceCtx context, string ncaPath, LibHac.Fs.IStorage ncaStorage, out IFileSystem openedFileSystem)
{
openedFileSystem = null;
try
{
Nca nca = new Nca(context.Device.System.KeySet, ncaStorage);
if (!nca.SectionExists(NcaSectionType.Data))
{
return ResultCode.PartitionNotFound;
}
LibHac.Fs.Fsa.IFileSystem fileSystem = nca.OpenFileSystem(NcaSectionType.Data, context.Device.System.FsIntegrityCheckLevel);
var sharedFs = new ReferenceCountedDisposable<LibHac.Fs.Fsa.IFileSystem>(fileSystem);
openedFileSystem = new IFileSystem(FileSystemInterfaceAdapter.CreateShared(ref sharedFs));
}
catch (HorizonResultException ex)
{
return (ResultCode)ex.ResultValue.Value;
}
return ResultCode.Success;
}
public static ResultCode OpenFileSystemFromInternalFile(ServiceCtx context, string fullPath, out IFileSystem openedFileSystem)
{
openedFileSystem = null;
DirectoryInfo archivePath = new DirectoryInfo(fullPath).Parent;
while (string.IsNullOrWhiteSpace(archivePath.Extension))
{
archivePath = archivePath.Parent;
}
if (archivePath.Extension == ".nsp" && File.Exists(archivePath.FullName))
{
FileStream pfsFile = new FileStream(
archivePath.FullName.TrimEnd(Path.DirectorySeparatorChar),
FileMode.Open,
FileAccess.Read);
try
{
PartitionFileSystem nsp = new PartitionFileSystem(pfsFile.AsStorage());
ImportTitleKeysFromNsp(nsp, context.Device.System.KeySet);
string filename = fullPath.Replace(archivePath.FullName, string.Empty).TrimStart('\\');
Result result = nsp.OpenFile(out LibHac.Fs.Fsa.IFile ncaFile, filename.ToU8Span(), OpenMode.Read);
if (result.IsFailure())
{
return (ResultCode)result.Value;
}
return OpenNcaFs(context, fullPath, ncaFile.AsStorage(), out openedFileSystem);
}
catch (HorizonResultException ex)
{
return (ResultCode)ex.ResultValue.Value;
}
}
return ResultCode.PathDoesNotExist;
}
public static void ImportTitleKeysFromNsp(LibHac.Fs.Fsa.IFileSystem nsp, KeySet keySet)
{
foreach (DirectoryEntryEx ticketEntry in nsp.EnumerateEntries("/", "*.tik"))
{
Result result = nsp.OpenFile(out LibHac.Fs.Fsa.IFile ticketFile, ticketEntry.FullPath.ToU8Span(), OpenMode.Read);
if (result.IsSuccess())
{
Ticket ticket = new Ticket(ticketFile.AsStream());
keySet.ExternalKeySet.Add(new RightsId(ticket.RightsId), new AccessKey(ticket.GetTitleKey(keySet)));
}
}
}
public static Result ReadFsPath(out FsPath path, ServiceCtx context, int index = 0)
{
ulong position = context.Request.PtrBuff[index].Position;
ulong size = context.Request.PtrBuff[index].Size;
byte[] pathBytes = new byte[size];
context.Memory.Read(position, pathBytes);
return FsPath.FromSpan(out path, pathBytes);
}
public static ref readonly FspPath GetFspPath(ServiceCtx context, int index = 0)
{
ulong position = (ulong)context.Request.PtrBuff[index].Position;
ulong size = (ulong)context.Request.PtrBuff[index].Size;
ReadOnlySpan<byte> buffer = context.Memory.GetSpan(position, (int)size);
ReadOnlySpan<FspPath> fspBuffer = MemoryMarshal.Cast<byte, FspPath>(buffer);
return ref fspBuffer[0];
}
public static ref readonly LibHac.FsSrv.Sf.Path GetSfPath(ServiceCtx context, int index = 0)
{
ulong position = (ulong)context.Request.PtrBuff[index].Position;
ulong size = (ulong)context.Request.PtrBuff[index].Size;
ReadOnlySpan<byte> buffer = context.Memory.GetSpan(position, (int)size);
ReadOnlySpan<LibHac.FsSrv.Sf.Path> pathBuffer = MemoryMarshal.Cast<byte, LibHac.FsSrv.Sf.Path>(buffer);
return ref pathBuffer[0];
}
}
}
|
