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service: nfp: Allow to load with a different amiibo id

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This commit is contained in:
german77 2023-05-08 22:03:32 -06:00 • committed by Narr the Reg
parent 7944f271dc
commit 1968cc7b10
6 changed files with 39 additions and 7 deletions
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17
src/core/hle/service/nfc/common/device.cpp
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@ -227,11 +227,20 @@ Result NfcDevice::GetTagInfo(NFP::TagInfo& tag_info, bool is_mifare) const {
return ResultWrongDeviceState;
}
UniqueSerialNumber uuid = encrypted_tag_data.uuid.uid;
// Generate random UUID to bypass amiibo load limits
if (Settings::values.random_amiibo_id) {
Common::TinyMT rng{};
rng.GenerateRandomBytes(uuid.data(), sizeof(UniqueSerialNumber));
uuid[3] = 0x88 ^ uuid[0] ^ uuid[1] ^ uuid[2];
}
if (is_mifare) {
tag_info = {
.uuid = encrypted_tag_data.uuid.uid,
.uuid = uuid,
.uuid_extension = {},
.uuid_length = static_cast<u8>(encrypted_tag_data.uuid.uid.size()),
.uuid_length = static_cast<u8>(uuid.size()),
.protocol = NfcProtocol::TypeA,
.tag_type = TagType::Type4,
};
@ -240,9 +249,9 @@ Result NfcDevice::GetTagInfo(NFP::TagInfo& tag_info, bool is_mifare) const {
// Protocol and tag type may change here
tag_info = {
.uuid = encrypted_tag_data.uuid.uid,
.uuid = uuid,
.uuid_extension = {},
.uuid_length = static_cast<u8>(encrypted_tag_data.uuid.uid.size()),
.uuid_length = static_cast<u8>(uuid.size()),
.protocol = NfcProtocol::TypeA,
.tag_type = TagType::Type2,
};