int applyPatch(void *file, const char *patch, const FirmInfo *info)
{
File fd;
Elf32_Ehdr ehdr;
Elf32_Shdr shdr;
unsigned int cur, off;
if (!FileOpen(&fd, patch, 0))
return 1;
if (FileRead(&fd, &ehdr, sizeof(ehdr), 0) < 0)
return 1;
cur = ehdr.e_shoff;
for (; ehdr.e_shnum; ehdr.e_shnum--, cur += sizeof(shdr)) {
if (FileRead(&fd, &shdr, sizeof(shdr), cur) < 0)
continue;
if (shdr.sh_type != SHT_PROGBITS || !(shdr.sh_flags & SHF_ALLOC))
continue;
off = addrToOff(shdr.sh_addr, info);
if (off == 0)
continue;
FileRead(&fd, (void *)((uintptr_t)file + off), shdr.sh_size, shdr.sh_offset);
}
return 0;
}
int rxMode(int emu)
{
if (!checkEmuNAND() && emu)
{
ConsoleInit();
ConsoleSetTitle(L"EMUNAND NOT FOUND!");
print(L"The emunand was not found on\n");
print(L"your SDCard. \n");
print(L"\n");
print(L"Press A to boot SYSNAND\n");
ConsoleShow();
WaitForButton(BUTTON_A);
emu = 0;
char s[32];
sprintf(s, "/rxTools/Theme/%u/boot.bin", cfgs[CFG_THEME].val.i);
DrawBottomSplash(s);
}
static const char patchNandPrefix[] = ".patch.p9.nand";
unsigned int cur, off, shstrSize;
char path[64], shstrtab[512], *sh_name;
const char *platformDir;
FirmInfo info;
const wchar_t *msg;
int r, sector;
void *p;
Elf32_Ehdr ehdr;
Elf32_Shdr shdr;
FIL fd, keyxFd;
UINT br, fsz;
setAgbBios();
getFirmPath(path, getMpInfo() == MPINFO_KTR ?
TID_KTR_NATIVE_FIRM : TID_CTR_NATIVE_FIRM);
strcpy(path + strlen(path) - 4, "orig.bin");
r = loadFirm(path, &fsz);
if (r) {
msg = L"Failed to load NATIVE_FIRM: %d\n"
L"Reboot rxTools and try again.\n";
goto fail;
}
makeFirmInfo((const uint8_t*)FIRM_ADDR, &info);
r = getMpInfo();
switch (r) {
case MPINFO_KTR:
platformDir = "ktr";
break;
case MPINFO_CTR:
platformDir = "ctr";
break;
default:
msg = L"Unknown Platform: %d";
goto fail;
}
sprintf(path, SYSTEM_PATH "/patches/%s/native_firm.elf", platformDir);
r = f_open(&fd, path, FA_READ);
if (r != FR_OK)
goto patchFail;
r = f_read(&fd, &ehdr, sizeof(ehdr), &br);
if (r != FR_OK)
goto patchFail;
r = f_lseek(&fd, ehdr.e_shoff + ehdr.e_shstrndx * sizeof(Elf32_Shdr));
if (r != FR_OK)
goto patchFail;
r = f_read(&fd, &shdr, sizeof(shdr), &br);
if (r != FR_OK)
goto patchFail;
r = f_lseek(&fd, shdr.sh_offset);
if (r != FR_OK)
goto patchFail;
r = f_read(&fd, shstrtab, shdr.sh_size > sizeof(shstrtab) ?
sizeof(shstrtab) : shdr.sh_size, &shstrSize);
if (r != FR_OK)
goto patchFail;
if (emu) {
sector = checkEmuNAND();
if (sector == 0) {
msg = L"Failed to find EmuNAND.\n"
L"Check your EmuNAND.\n";
goto fail;
}
} else
sector = 0;
cur = ehdr.e_shoff;
for (; ehdr.e_shnum; ehdr.e_shnum--, cur += sizeof(shdr)) {
if (f_lseek(&fd, cur) != FR_OK)
continue;
if (f_read(&fd, &shdr, sizeof(shdr), &br) != FR_OK)
continue;
if (!(shdr.sh_flags & SHF_ALLOC) || shdr.sh_name >= shstrSize)
continue;
off = addrToOff(shdr.sh_addr, &info);
if (off == 0)
continue;
p = (void *)(FIRM_ADDR + off);
sh_name = shstrtab + shdr.sh_name;
if (!strcmp(sh_name, ".rodata.keyx")) {
if (sysver >= 7)
continue;
if (f_open(&keyxFd, "slot0x25KeyX.bin", FA_READ) != FR_OK)
continue;
f_read(&keyxFd, p, shdr.sh_size, &br);
f_close(&keyxFd);
} else if (!strcmp(sh_name, ".rodata.nand.sector")) {
if (sector)
*(uint32_t *)p = (sector / 0x200) - 1;
} else if (!strcmp(sh_name, ".rodata.label")) {
*(uint32_t *)p = sector ? 'E-XR' : 'S-XR';
} else if (shdr.sh_type == SHT_PROGBITS
&& (sector || memcmp(sh_name, patchNandPrefix, sizeof(patchNandPrefix) - 1))
&& (sysver < 7 || strcmp(sh_name, ".patch.p9.keyx")))
{
if (f_lseek(&fd, shdr.sh_offset) != FR_OK)
continue;
f_read(&fd, p, shdr.sh_size, &br);
}
}
getFirmPath(path, getMpInfo() == MPINFO_KTR ?
TID_KTR_NATIVE_FIRM : TID_CTR_NATIVE_FIRM);
f_open(&fd, path, FA_WRITE | FA_CREATE_ALWAYS);
f_write(&fd, (void *)FIRM_ADDR, fsz, &br);
f_close(&fd);
r = loadExecReboot(); // This won't return if it succeeds.
msg = L"Failed to load reboot.bin: %d\n"
L"Check your installation.\n";
fail:
ConsoleInit();
ConsoleSetTitle(L"rxMode");
print(msg, r);
print(L"\n");
print(strings[STR_PRESS_BUTTON_ACTION],
strings[STR_BUTTON_A], strings[STR_CONTINUE]);
ConsoleShow();
WaitForButton(BUTTON_A);
return r;
patchFail:
msg = L"Failed to load native_firm.elf: %d\n"
L"Check your installation.\n";
goto fail;
}
