LowLevel/Luma3DS-3GX
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Rework whitelist check patch

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This commit is contained in:
Aurora Wright 2017-06-02 04:35:02 +02:00 committed by TuxSH
parent 9e47369365
commit 7a05dee453
1 changed files with 15 additions and 36 deletions
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47
sysmodules/loader/source/patcher.c
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@ -636,8 +636,7 @@ void patchCode(u64 progId, u16 progVer, u8 *code, u32 size, u32 textSize, u32 ro
progId == 0x000400300000A102LL || //CHN Home Menu
progId == 0x000400300000B102LL) //TWN Home Menu
{
bool applyRegionFreePatch = true,
applyNewDsWhitelistPatch = false;
bool applyRegionFreePatch = true;
switch(progId)
{
@ -645,11 +644,9 @@ void patchCode(u64 progId, u16 progVer, u8 *code, u32 size, u32 textSize, u32 ro
case 0x0004003000008202LL: //JPN Home Menu
case 0x0004003000009802LL: //EUR Home Menu
if(progVer <= 4) applyRegionFreePatch = false;
if(progVer >= 0xB) applyNewDsWhitelistPatch = true;
break;
case 0x000400300000A902LL: //KOR Home Menu
if(!progVer) applyRegionFreePatch = false;
if(progVer >= 6) applyNewDsWhitelistPatch = true;
break;
}
@ -671,40 +668,22 @@ void patchCode(u64 progId, u16 progVer, u8 *code, u32 size, u32 textSize, u32 ro
)) goto error;
}
if(applyNewDsWhitelistPatch)
{
static const u8 pattern[] = {
0xE9, 0x12, 0x20, 0xA0
},
patch[] = {
0x00, 0x00, 0xA0, 0xE3, 0x1E, 0xFF, 0x2F, 0xE1
0x10, 0xD1, 0xE5, 0x08, 0x00, 0x8D
};
//Patch DS title whitelist check
if(!patchMemory(code, textSize,
pattern,
sizeof(pattern), -3,
patch,
sizeof(patch), 1
)) goto error;
}
else
{
static const u8 pattern[] = {
0x4D, 0xE2, 0x12, 0x20
},
patch[] = {
0x00, 0x00, 0xA0, 0xE3, 0x1E, 0xFF, 0x2F, 0xE1
};
u8 *temp = memsearch(code, pattern, textSize, sizeof(pattern));
//Patch DS title whitelist check
if(!patchMemory(code, textSize,
pattern,
sizeof(pattern), -6,
patch,
sizeof(patch), 1
)) goto error;
}
if(temp == NULL) goto error;
u32 additive = findFunctionStart(code, (u32)(temp - code - 1));
if(additive == 0xFFFFFFFF) goto error;
u32 *off = (u32 *)(code + additive);
off[0] = 0xE3A00000; //mov r0, #0
off[1] = 0xE12FFF1E; //bx lr
}
else if(progId == 0x0004013000003202LL) //FRIENDS