mirrors/Atmosphere
1
0
Fork 0
mirror of https://github.com/Atmosphere-NX/Atmosphere.git synced 2025-05-15 15:44:23 -04:00
Code Issues Projects Releases Packages Wiki Activity

fusee_cpp: validate mtc overlay before jumping to it.

Browse source 
mtc will jump back to us, so we need a compatible binary.

This also makes some changes to our layout to minimize the likelihood of
an incompatible mtc binary (I made some arbitrary .text/.rodata/.rwdata changes)
and saw identical mtc binaries, so hopefully this all works out.
This commit is contained in:
Michael Scire 2021-09-03 01:49:18 -07:00 • committed by SciresM
parent b520f5c53b
commit 5950ff5b5e
4 changed files with 24 additions and 5 deletions
Download patch file Download diff file Expand all files Collapse all files

10
fusee_cpp/program/split_bin.py
View file

@ -132,7 +132,11 @@ def main(argc, argv):
all_kips = get_kips()
with open('../../program%s.bin' % target, 'rb') as f:
data = f.read()
fusee_program = lz4_compress(data[:0x2B000] + get_overlay(data, 0)[:0x11000])
erista_mtc = get_overlay(data, 1)
mariko_mtc = get_overlay(data, 2)
erista_hsh = hashlib.sha256(erista_mtc[:-4]).digest()[:4]
mariko_hsh = hashlib.sha256(mariko_mtc[:-4]).digest()[:4]
fusee_program = lz4_compress(data[:0x2B000 - 8] + erista_hsh + mariko_hsh + get_overlay(data, 0)[:0x11000])
with open('../../program%s.lz4' % target, 'wb') as f:
f.write(fusee_program)
with open('../../fusee-boogaloo%s.bin' % target, 'wb') as f:
@ -145,9 +149,9 @@ def main(argc, argv):
# Write Mariko Fatal
f.write(pad(read_file('../../../../exosphere/mariko_fatal%s.bin' % target), 0x1C000))
# Write Erista MTC
f.write(get_overlay(data, 1))
f.write(erista_mtc[:-4] + erista_hsh)
# Write Mariko MTC
f.write(get_overlay(data, 2))
f.write(mariko_mtc[:-4] + mariko_hsh)
# Write exosphere
f.write(pad(read_file('../../../../exosphere/exosphere%s.bin' % target), 0xE000))
# Write mesosphere