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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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10
src/Cafe/OS/libs/coreinit/coreinit_FS.cpp
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@ -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;