mirror of
https://github.com/Atmosphere-NX/Atmosphere
synced 2024-11-14 00:56:35 +00:00
189 lines
6.7 KiB
Python
189 lines
6.7 KiB
Python
#!/usr/bin/env python
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import sys, lz4, hashlib
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from struct import unpack as up, pack as pk
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def lz4_compress(data):
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try:
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import lz4.block as block
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except ImportError:
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block = lz4.LZ4_compress
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return block.compress(data, 'high_compression', store_size=False)
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def read_file(fn):
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with open(fn, 'rb') as f:
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return f.read()
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def pad(data, size):
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assert len(data) <= size
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return (data + '\x00' * size)[:size]
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def get_overlay(program, i):
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return program[0x2B000 + 0x14000 * i:0x2B000 + 0x14000 * (i+1)]
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KIP_NAMES = ['Loader', 'NCM', 'ProcessManager', 'sm', 'boot', 'spl', 'ams_mitm']
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def get_kips():
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emummc = read_file('../../../../emummc/emummc_unpacked.kip')
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loader = read_file('../../../../stratosphere/loader/loader.kip')
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ncm = read_file('../../../../stratosphere/ncm/ncm.kip')
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pm = read_file('../../../../stratosphere/pm/pm.kip')
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sm = read_file('../../../../stratosphere/sm/sm.kip')
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boot = read_file('../../../../stratosphere/boot/boot.kip')
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spl = read_file('../../../../stratosphere/spl/spl.kip')
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ams_mitm = read_file('../../../../stratosphere/ams_mitm/ams_mitm.kip')
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return (emummc, {
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'Loader' : loader,
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'NCM' : ncm,
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'ProcessManager' : pm,
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'sm' : sm,
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'boot' : boot,
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'spl' : spl,
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'ams_mitm' : ams_mitm,
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})
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def write_kip_meta(f, kip, ofs):
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# Write program id
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f.write(kip[0x10:0x18])
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# Write offset, size
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f.write(pk('<II', ofs - 0x100000, len(kip)))
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# Write hash
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f.write(hashlib.sha256(kip).digest())
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def write_header(f, all_kips, meso_size):
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# Unpack kips
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emummc, kips = all_kips
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# Write reserved0 (previously entrypoint) as infinite loop instruction.
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f.write(pk('<I', 0xEAFFFFFE))
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# Write metadata offset = 0x10
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f.write(pk('<I', 0x20))
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# Write flags
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f.write(pk('<I', 0x00000000))
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# Write meso_size
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f.write(pk('<I', meso_size))
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# Write num_kips
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f.write(pk('<I', len(KIP_NAMES)))
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# Write reserved1
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f.write(b'\xCC' * 0xC)
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# Write magic
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f.write('FSS0')
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# Write total size
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f.write(pk('<I', 0x800000))
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# Write reserved2
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f.write(pk('<I', 0xCCCCCCCC))
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# Write content_header_offset
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f.write(pk('<I', 0x40))
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# Write num_content_headers;
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f.write(pk('<I', 8 + len(KIP_NAMES)))
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# Write supported_hos_version;
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f.write(pk('<I', 0xCCCCCCCC)) # TODO
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# Write release_version;
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f.write(pk('<I', 0xCCCCCCCC)) # TODO
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# Write git_revision;
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f.write(pk('<I', 0xCCCCCCCC)) # TODO
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# Write content metas
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f.write(pk('<IIBBBBI16s', 0x000800, 0x001800, 2, 0, 0, 0, 0xCCCCCCCC, 'warmboot'))
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f.write(pk('<IIBBBBI16s', 0x002000, 0x002000, 12, 0, 0, 0, 0xCCCCCCCC, 'tsec_keygen'))
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f.write(pk('<IIBBBBI16s', 0x004000, 0x01C000, 11, 0, 0, 0, 0xCCCCCCCC, 'exosphere_fatal'))
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f.write(pk('<IIBBBBI16s', 0x048000, 0x00E000, 1, 0, 0, 0, 0xCCCCCCCC, 'exosphere'))
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f.write(pk('<IIBBBBI16s', 0x056000, 0x0AA000, 10, 0, 0, 0, 0xCCCCCCCC, 'mesosphere'))
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f.write(pk('<IIBBBBI16s', 0x7C0000, 0x020000, 0, 0, 0, 0, 0xCCCCCCCC, 'fusee'))
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f.write(pk('<IIBBBBI16s', 0x7E0000, 0x001000, 3, 0, 0, 0, 0xCCCCCCCC, 'rebootstub'))
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f.write(pk('<IIBBBBI16s', 0x100000, len(emummc), 8, 0, 0, 0, 0xCCCCCCCC, 'emummc'))
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ofs = (0x100000 + len(emummc) + 0xF) & ~0xF
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for kip_name in KIP_NAMES:
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kip_data = kips[kip_name]
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f.write(pk('<IIBBBBI16s', ofs, len(kip_data), 6, 0, 0, 0, 0xCCCCCCCC, kip_name))
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ofs += len(kip_data)
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ofs += 0xF
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ofs &= ~0xF
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# Pad to kip metas.
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f.write(b'\xCC' * (0x400 - 0x40 - (0x20 * (8 + len(KIP_NAMES)))))
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# Write emummc_meta. */
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write_kip_meta(f, emummc, 0x100000)
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# Write kip metas
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ofs = (0x100000 + len(emummc) + 0xF) & ~0xF
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for kip_name in KIP_NAMES:
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kip_data = kips[kip_name]
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write_kip_meta(f, kip_data, ofs)
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ofs += len(kip_data)
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ofs += 0xF
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ofs &= ~0xF
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# Pad to end of header
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f.write(b'\xCC' * (0x800 - (0x400 + (1 + len(KIP_NAMES)) * 0x30)))
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def write_kips(f, all_kips):
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# Unpack kips
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emummc, kips = all_kips
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# Write emummc
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f.write(emummc)
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# Write kips
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tot = len(emummc)
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if (tot & 0xF):
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f.write('\xCC' * (0x10 - (tot & 0xF)))
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tot += 0xF
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tot &= ~0xF
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for kip_name in KIP_NAMES:
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kip_data = kips[kip_name]
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f.write(kip_data)
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tot += len(kip_data)
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if (tot & 0xF):
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f.write('\xCC' * (0x10 - (tot & 0xF)))
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tot += 0xF
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tot &= ~0xF
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# Pad to 3 MB
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f.write(b'\xCC' * (0x300000 - tot))
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def main(argc, argv):
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if argc == 2:
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target = argv[1]
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if len(target) == 0:
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target = ''
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elif argc == 1:
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target = ''
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else:
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print('Usage: %s target' % argv[0])
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return 1
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all_kips = get_kips()
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with open('../../program%s.bin' % target, 'rb') as f:
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data = f.read()
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erista_mtc = get_overlay(data, 1)
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mariko_mtc = get_overlay(data, 2)
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erista_hsh = hashlib.sha256(erista_mtc[:-4]).digest()[:4]
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mariko_hsh = hashlib.sha256(mariko_mtc[:-4]).digest()[:4]
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fusee_program = lz4_compress(data[:0x2B000 - 8] + erista_hsh + mariko_hsh + get_overlay(data, 0)[:0x11000])
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mesosphere = read_file('../../../../mesosphere/mesosphere%s.bin' % target)
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with open('../../program%s.lz4' % target, 'wb') as f:
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f.write(fusee_program)
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with open('../../fusee-boogaloo%s.bin' % target, 'wb') as f:
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# Write header
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write_header(f, all_kips, len(mesosphere))
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# Write warmboot
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f.write(pad(read_file('../../../../exosphere/warmboot%s.bin' % target), 0x1800))
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# Write TSEC Keygen
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f.write(pad(read_file('../../tsec_keygen/tsec_keygen.bin'), 0x2000))
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# Write Mariko Fatal
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f.write(pad(read_file('../../../../exosphere/mariko_fatal%s.bin' % target), 0x1C000))
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# Write Erista MTC
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f.write(erista_mtc[:-4] + erista_hsh)
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# Write Mariko MTC
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f.write(mariko_mtc[:-4] + mariko_hsh)
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# Write exosphere
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f.write(pad(read_file('../../../../exosphere/exosphere%s.bin' % target), 0xE000))
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# Write mesosphere
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f.write(pad(read_file('../../../../mesosphere/mesosphere%s.bin' % target), 0xAA000))
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# Write kips
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write_kips(f, all_kips)
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# Write Splash Screen
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f.write(pad(read_file('../../splash_screen/splash_screen.bin'), 0x3C0000))
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# Write fusee
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f.write(pad(fusee_program, 0x20000))
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# Write rebootstub
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f.write(pad(read_file('../../../../exosphere/program/rebootstub/rebootstub%s.bin' % target), 0x1000))
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# Pad to 8 MB
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f.write(b'\xCC' * (0x800000 - 0x7E1000))
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return 0
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if __name__ == '__main__':
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sys.exit(main(len(sys.argv), sys.argv))
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