ShuriZma
/
xenia-canary
mirror of https://github.com/xenia-canary/xenia-canary.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

[CPU] Check patch MediaID if patch signature check failed 

This should let us make sure patches are being applied to the right XEX, without needing to rely on the signature.
This commit is contained in:
emoose 2020-01-05 20:44:31 +00:00 committed by illusion
parent eabe6622f9
commit ede39336ca
1 changed files with 10 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
src/xenia/cpu/xex_module.cc
View File

@ -215,6 +215,16 @@ int XexModule::ApplyPatch(XexModule* module) {
s.finalize(digest); s.finalize(digest);
if (memcmp(digest, patch_header->digest_source, 0x14) != 0) { if (memcmp(digest, patch_header->digest_source, 0x14) != 0) {
// If the signature check failed, check against the MediaID
// (we can forgive signature not matching)
// we won't check MediaID if the sig matches though, since it might not be
// that reliable?
if (memcmp(xex_security_info()->xgd2_media_id,
module->xex_security_info()->xgd2_media_id, 0x10) != 0) {
XELOGE("Patch MediaID doesn't match base XEX MediaID, aborting patch");
return 1;
}
XELOGW( XELOGW(
"XEX patch signature hash doesn't match base XEX signature hash, patch " "XEX patch signature hash doesn't match base XEX signature hash, patch "
"will likely fail!"); "will likely fail!");