usbloadergx/source/lstub.c

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//functions for manipulating the HBC stub by giantpune
#include <string.h>
#include <ogcsys.h>
#include <malloc.h>
#include <stdio.h>
#include "lstub.h"
#include "stub_bin.h"
#define TITLE_1(x) ((u8)((x) >> 8))
#define TITLE_2(x) ((u8)((x) >> 16))
#define TITLE_3(x) ((u8)((x) >> 24))
#define TITLE_4(x) ((u8)((x) >> 32))
#define TITLE_5(x) ((u8)((x) >> 40))
#define TITLE_6(x) ((u8)((x) >> 48))
#define TITLE_7(x) ((u8)((x) >> 56))
#define TITLE_ID(x,y) (((u64)(x) << 32) | (y))
s32 Set_Stub(u64 reqID)
{
u32 tmdsize;
u64 tid = 0;
u64 *list;
u32 titlecount;
s32 ret;
u32 i;
ret = ES_GetNumTitles(&titlecount);
if(ret < 0)
return WII_EINTERNAL;
list = memalign(32, titlecount * sizeof(u64) + 32);
ret = ES_GetTitles(list, titlecount);
if(ret < 0) {
free(list);
return WII_EINTERNAL;
}
for(i=0; i<titlecount; i++) {
if (list[i]==reqID)
{
tid = list[i];
break;
}
}
free(list);
if(!tid)
return -69;//id to stub is not installed
if(ES_GetStoredTMDSize(tid, &tmdsize) < 0)
return WII_EINSTALL;
char *stub = (char *)0x800024C6;
stub[0] = TITLE_7(reqID);
stub[1] = TITLE_6(reqID);
stub[8] = TITLE_5(reqID);
stub[9] = TITLE_4(reqID);
stub[4] = TITLE_3(reqID);
stub[5] = TITLE_2(reqID);
stub[12] = TITLE_1(reqID);
stub[13] = ((u8)(reqID));
return 1;
}
s32 Set_Stub_Split(u32 type, const char* reqID)
{
char tmp[4];
u32 lower;
sprintf(tmp,"%c%c%c%c",reqID[0],reqID[1],reqID[2],reqID[3]);
memcpy(&lower, tmp, 4);
u64 reqID64 = TITLE_ID(type, lower);
return Set_Stub(reqID64);
}
void loadStub()
{
char *stubLoc = (char *)0x80001800;
memcpy(stubLoc, stub_bin, stub_bin_size);
}
u64 getStubDest()
{
if (!hbcStubAvailable())
return 0;
char *stub = (char *)0x800024C6;
char ret[9];
u64 retu =0;
ret[0] = stub[0];
ret[1] = stub[1];
ret[2] = stub[8];
ret[3] = stub[9];
ret[4] = stub[4];
ret[5] = stub[5];
ret[6] = stub[12];
ret[7] = stub[13];
memcpy(&retu, ret, 8);
return retu;
}
u8 hbcStubAvailable()
{
char * sig = (char *)0x80001804;
return (
sig[0] == 'S' &&
sig[1] == 'T' &&
sig[2] == 'U' &&
sig[3] == 'B' &&
sig[4] == 'H' &&
sig[5] == 'A' &&
sig[6] == 'X' &&
sig[7] == 'X') ? 1 : 0;
}