110 lines
2.5 KiB
C
110 lines
2.5 KiB
C
|
#include <3ds.h>
|
||
|
|
#include "fsldr.h"
|
||
|
|
#include "fsreg.h"
|
||
|
|
#include "srvsys.h"
|
||
|
|
|
||
|
|
#define SDK_VERSION 0x70200C8
|
||
|
|
|
||
|
|
static Handle fsldrHandle;
|
||
|
|
static int fsldrRefCount;
|
||
|
|
|
||
|
|
// MAKE SURE fsreg has been init before calling this
|
||
|
|
static Result fsldrPatchPermissions(void)
|
||
|
|
{
|
||
|
|
u32 pid;
|
||
|
|
Result res;
|
||
|
|
FS_ProgramInfo info;
|
||
|
|
u32 storage[8] = {0};
|
||
|
|
|
||
|
|
storage[6] = 0x680; // SDMC access and NAND access flag
|
||
|
|
info.programId = 0x0004013000001302LL; // loader PID
|
||
|
|
info.mediaType = MEDIATYPE_NAND;
|
||
|
|
res = svcGetProcessId(&pid, 0xFFFF8001);
|
||
|
|
if (R_SUCCEEDED(res))
|
||
|
|
{
|
||
|
|
res = FSREG_Register(pid, 0xFFFF000000000000LL, &info, (u8 *)storage);
|
||
|
|
}
|
||
|
|
return res;
|
||
|
|
}
|
||
|
|
|
||
|
|
Result fsldrInit(void)
|
||
|
|
{
|
||
|
|
Result ret = 0;
|
||
|
|
|
||
|
|
if (AtomicPostIncrement(&fsldrRefCount)) return 0;
|
||
|
|
|
||
|
|
ret = srvSysGetServiceHandle(&fsldrHandle, "fs:LDR");
|
||
|
|
if (R_SUCCEEDED(ret))
|
||
|
|
{
|
||
|
|
fsldrPatchPermissions();
|
||
|
|
ret = FSLDR_InitializeWithSdkVersion(fsldrHandle, SDK_VERSION);
|
||
|
|
ret = FSLDR_SetPriority(0);
|
||
|
|
if (R_FAILED(ret)) svcBreak(USERBREAK_ASSERT);
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
AtomicDecrement(&fsldrRefCount);
|
||
|
|
}
|
||
|
|
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
|
||
|
|
void fsldrExit(void)
|
||
|
|
{
|
||
|
|
if (AtomicDecrement(&fsldrRefCount)) return;
|
||
|
|
svcCloseHandle(fsldrHandle);
|
||
|
|
}
|
||
|
|
|
||
|
|
Result FSLDR_InitializeWithSdkVersion(Handle session, u32 version)
|
||
|
|
{
|
||
|
|
u32 *cmdbuf = getThreadCommandBuffer();
|
||
|
|
|
||
|
|
cmdbuf[0] = IPC_MakeHeader(0x861,1,2); // 0x8610042
|
||
|
|
cmdbuf[1] = version;
|
||
|
|
cmdbuf[2] = 32;
|
||
|
|
|
||
|
|
Result ret = 0;
|
||
|
|
if(R_FAILED(ret = svcSendSyncRequest(session))) return ret;
|
||
|
|
|
||
|
|
return cmdbuf[1];
|
||
|
|
}
|
||
|
|
|
||
|
|
Result FSLDR_SetPriority(u32 priority)
|
||
|
|
{
|
||
|
|
u32 *cmdbuf = getThreadCommandBuffer();
|
||
|
|
|
||
|
|
cmdbuf[0] = IPC_MakeHeader(0x862,1,0); // 0x8620040
|
||
|
|
cmdbuf[1] = priority;
|
||
|
|
|
||
|
|
Result ret = 0;
|
||
|
|
if(R_FAILED(ret = svcSendSyncRequest(fsldrHandle))) return ret;
|
||
|
|
|
||
|
|
return cmdbuf[1];
|
||
|
|
}
|
||
|
|
|
||
|
|
Result FSLDR_OpenFileDirectly(Handle* out, FS_Archive archive, FS_Path path, u32 openFlags, u32 attributes)
|
||
|
|
{
|
||
|
|
u32 *cmdbuf = getThreadCommandBuffer();
|
||
|
|
|
||
|
|
cmdbuf[0] = IPC_MakeHeader(0x803,8,4); // 0x8030204
|
||
|
|
cmdbuf[1] = 0;
|
||
|
|
cmdbuf[2] = archive.id;
|
||
|
|
cmdbuf[3] = archive.lowPath.type;
|
||
|
|
cmdbuf[4] = archive.lowPath.size;
|
||
|
|
cmdbuf[5] = path.type;
|
||
|
|
cmdbuf[6] = path.size;
|
||
|
|
cmdbuf[7] = openFlags;
|
||
|
|
cmdbuf[8] = attributes;
|
||
|
|
cmdbuf[9] = IPC_Desc_StaticBuffer(archive.lowPath.size, 2);
|
||
|
|
cmdbuf[10] = (u32) archive.lowPath.data;
|
||
|
|
cmdbuf[11] = IPC_Desc_StaticBuffer(path.size, 0);
|
||
|
|
cmdbuf[12] = (u32) path.data;
|
||
|
|
|
||
|
|
Result ret = 0;
|
||
|
|
if(R_FAILED(ret = svcSendSyncRequest(fsldrHandle))) return ret;
|
||
|
|
|
||
|
|
if(out) *out = cmdbuf[3];
|
||
|
|
|
||
|
|
return cmdbuf[1];
|
||
|
|
}
|