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coreinit: Handle SD mounting permission in FSGetMountSource

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One Piece requires this to not get stuck in an infinite loop on boot.

This also sets up initial infrastructure for handling cos.xml permissions
This commit is contained in:
Exzap 2024-04-06 22:18:30 +02:00
parent fde7230191
commit 74e8d205b0
5 changed files with 157 additions and 22 deletions
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21
src/Cafe/CafeSystem.cpp
View File

@ -914,6 +914,27 @@ namespace CafeSystem
return sGameInfo_ForegroundTitle.GetBase().GetArgStr();
}
CosCapabilityBits GetForegroundTitleCosCapabilities(CosCapabilityGroup group)
{
if (sLaunchModeIsStandalone)
return CosCapabilityBits::All;
auto& update = sGameInfo_ForegroundTitle.GetUpdate();
if (update.IsValid())
{
ParsedCosXml* cosXml = update.GetCosInfo();
if (cosXml)
return cosXml->GetCapabilityBits(group);
}
auto& base = sGameInfo_ForegroundTitle.GetBase();
if(base.IsValid())
{
ParsedCosXml* cosXml = base.GetCosInfo();
if (cosXml)
return cosXml->GetCapabilityBits(group);
}
return CosCapabilityBits::All;
}
// when switching titles custom parameters can be passed, returns true if override args are used
bool GetOverrideArgStr(std::vector<std::string>& args)
{

4
src/Cafe/CafeSystem.h
View File

@ -4,6 +4,9 @@
#include "Cafe/TitleList/TitleId.h"
#include "config/CemuConfig.h"
enum class CosCapabilityBits : uint64;
enum class CosCapabilityGroup : uint32;
namespace CafeSystem
{
class SystemImplementation
@ -41,6 +44,7 @@ namespace CafeSystem
std::string GetForegroundTitleName();
std::string GetForegroundTitleArgStr();
uint32 GetForegroundTitleOlvAccesskey();
CosCapabilityBits GetForegroundTitleCosCapabilities(CosCapabilityGroup group);
void ShutdownTitle();

10
src/Cafe/OS/libs/coreinit/coreinit_FS.cpp
View File

@ -11,6 +11,8 @@
#include "coreinit_IPC.h"
#include "Cafe/Filesystem/fsc.h"
#include "coreinit_IPCBuf.h"
#include "Cafe/CafeSystem.h"
#include "Cafe/TitleList/TitleInfo.h"
#define FS_CB_PLACEHOLDER_FINISHCMD (MPTR)(0xF122330E)
@ -94,6 +96,14 @@ namespace coreinit
// so we can just hard code it. Other mount types are not (yet) supported.
if (mountSourceType == MOUNT_TYPE::SD)
{
// check for SD card permissions (from cos.xml)
// One Piece relies on failing here, otherwise it will call FSGetMountSource in an infinite loop
CosCapabilityBitsFS perms = static_cast<CosCapabilityBitsFS>(CafeSystem::GetForegroundTitleCosCapabilities(CosCapabilityGroup::FS));
if(!HAS_FLAG(perms, CosCapabilityBitsFS::SDCARD_MOUNT))
{
cemuLog_logOnce(LogType::Force, "Title is trying to access SD card mount info without having SD card permissions. This may not be a bug");
return FS_RESULT::END_ITERATION;
}
mountSourceInfo->sourceType = 0;
strcpy(mountSourceInfo->path, "/sd");
return FS_RESULT::SUCCESS;

43
src/Cafe/TitleList/TitleInfo.cpp
View File

@ -1,13 +1,11 @@
#include "TitleInfo.h"
#include "Cafe/Filesystem/fscDeviceHostFS.h"
#include "Cafe/Filesystem/FST/FST.h"
#include "pugixml.hpp"
#include "Common/FileStream.h"
#include <zarchive/zarchivereader.h>
#include "config/ActiveSettings.h"
#include "util/helpers/helpers.h"
// detect format by reading file header/footer
CafeTitleFileType DetermineCafeSystemFileType(fs::path filePath)
@ -709,10 +707,41 @@ std::string TitleInfo::GetInstallPath() const
{
TitleId titleId = GetAppTitleId();
TitleIdParser tip(titleId);
std::string tmp;
std::string tmp;
if (tip.IsSystemTitle())
tmp = fmt::format("sys/title/{:08x}/{:08x}", GetTitleIdHigh(titleId), GetTitleIdLow(titleId));
else
tmp = fmt::format("usr/title/{:08x}/{:08x}", GetTitleIdHigh(titleId), GetTitleIdLow(titleId));
tmp = fmt::format("sys/title/{:08x}/{:08x}", GetTitleIdHigh(titleId), GetTitleIdLow(titleId));
else
tmp = fmt::format("usr/title/{:08x}/{:08x}", GetTitleIdHigh(titleId), GetTitleIdLow(titleId));
return tmp;
}
ParsedCosXml* ParsedCosXml::Parse(uint8* xmlData, size_t xmlLen)
{
pugi::xml_document app_doc;
if (!app_doc.load_buffer_inplace(xmlData, xmlLen))
return nullptr;
const auto root = app_doc.child("app");
if (!root)
return nullptr;
ParsedCosXml* parsedCos = new ParsedCosXml();
auto node = root.child("argstr");
if (node)
parsedCos->argstr = node.text().as_string();
// parse permissions
auto permissionsNode = root.child("permissions");
for(uint32 permissionIndex = 0; permissionIndex < 19; ++permissionIndex)
{
std::string permissionName = fmt::format("p{}", permissionIndex);
auto permissionNode = permissionsNode.child(permissionName.c_str());
if (!permissionNode)
break;
parsedCos->permissions[permissionIndex].group = static_cast<CosCapabilityGroup>(ConvertString<uint32>(permissionNode.child("group").text().as_string(), 10));
parsedCos->permissions[permissionIndex].mask = static_cast<CosCapabilityBits>(ConvertString<uint64>(permissionNode.child("mask").text().as_string(), 16));
}
return parsedCos;
}

101
src/Cafe/TitleList/TitleInfo.h
View File

@ -26,29 +26,95 @@ struct ParsedAppXml
uint32 sdk_version;
};
enum class CosCapabilityGroup : uint32
{
None = 0,
BSP = 1,
DK = 3,
USB = 9,
UHS = 12,
FS = 11,
MCP = 13,
NIM = 14,
ACT = 15,
FPD = 16,
BOSS = 17,
ACP = 18,
PDM = 19,
AC = 20,
NDM = 21,
NSEC = 22
};
enum class CosCapabilityBits : uint64
{
All = 0xFFFFFFFFFFFFFFFFull
};
enum class CosCapabilityBitsFS : uint64
{
ODD_READ = (1llu << 0),
ODD_WRITE = (1llu << 1),
ODD_RAW_OPEN = (1llu << 2),
ODD_MOUNT = (1llu << 3),
SLCCMPT_READ = (1llu << 4),
SLCCMPT_WRITE = (1llu << 5),
SLCCMPT_RAW_OPEN = (1llu << 6),
SLCCMPT_MOUNT = (1llu << 7),
SLC_READ = (1llu << 8),
SLC_WRITE = (1llu << 9),
SLC_RAW_OPEN = (1llu << 10),
SLC_MOUNT = (1llu << 11),
MLC_READ = (1llu << 12),
MLC_WRITE = (1llu << 13),
MLC_RAW_OPEN = (1llu << 14),
MLC_MOUNT = (1llu << 15),
SDCARD_READ = (1llu << 16),
SDCARD_WRITE = (1llu << 17),
SDCARD_RAW_OPEN = (1llu << 18),
SDCARD_MOUNT = (1llu << 19),
HFIO_READ = (1llu << 20),
HFIO_WRITE = (1llu << 21),
HFIO_RAW_OPEN = (1llu << 22),
HFIO_MOUNT = (1llu << 23),
RAMDISK_READ = (1llu << 24),
RAMDISK_WRITE = (1llu << 25),
RAMDISK_RAW_OPEN = (1llu << 26),
RAMDISK_MOUNT = (1llu << 27),
USB_READ = (1llu << 28),
USB_WRITE = (1llu << 29),
USB_RAW_OPEN = (1llu << 30),
USB_MOUNT = (1llu << 31),
OTHER_READ = (1llu << 32),
OTHER_WRITE = (1llu << 33),
OTHER_RAW_OPEN = (1llu << 34),
OTHER_MOUNT = (1llu << 35)
};
ENABLE_BITMASK_OPERATORS(CosCapabilityBitsFS);
struct ParsedCosXml
{
public:
std::string argstr;
static ParsedCosXml* Parse(uint8* xmlData, size_t xmlLen)
struct Permission
{
pugi::xml_document app_doc;
if (!app_doc.load_buffer_inplace(xmlData, xmlLen))
return nullptr;
CosCapabilityGroup group{CosCapabilityGroup::None};
CosCapabilityBits mask{CosCapabilityBits::All};
};
Permission permissions[19]{};
const auto root = app_doc.child("app");
if (!root)
return nullptr;
static ParsedCosXml* Parse(uint8* xmlData, size_t xmlLen);
ParsedCosXml* parsedCos = new ParsedCosXml();
for (const auto& child : root.children())
CosCapabilityBits GetCapabilityBits(CosCapabilityGroup group) const
{
for (const auto& perm : permissions)
{
std::string_view name = child.name();
if (name == "argstr")
parsedCos->argstr = child.text().as_string();
if (perm.group == group)
return perm.mask;
}
return parsedCos;
return CosCapabilityBits::All;
}
};
@ -151,7 +217,7 @@ public:
// cos.xml
std::string GetArgStr() const;
// meta.xml also contains a version which seems to match the one from app.xml
// meta.xml also contains a version field which seems to match the one from app.xml
// the titleId in meta.xml seems to be the title id of the base game for updates specifically. For AOC content it's the AOC's titleId
TitleIdParser::TITLE_TYPE GetTitleType();
@ -160,6 +226,11 @@ public:
return m_parsedMetaXml;
}
ParsedCosXml* GetCosInfo()
{
return m_parsedCosXml;
}
std::string GetPrintPath() const; // formatted path including type and WUA subpath. Intended for logging and user-facing information
std::string GetInstallPath() const; // installation subpath, relative to storage base. E.g. "usr/title/.../..." or "sys/title/.../..."