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fixup! feat(rust/trezor-thp): secure channel layer: device side

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This commit is contained in:
Martin Milata
2026-02-19 11:38:33 +01:00
parent 08f3ceb8ea
commit 555ee8c51f
1 changed files with 4 additions and 3 deletions
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7
rust/trezor-thp/src/channel/test.rs
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@@ -727,7 +727,8 @@ fn test_invalid_channel_id() -> Result<()> {
Ok(())
}
fn recompute_crc<R: Role>(wire: &mut VecDeque<Packet>) {
// NOTE: does not work with CRC across packet boundary.
fn recompute_crc(wire: &mut VecDeque<Packet>) {
let payload_len: usize = u16::from_be_bytes([wire[0][3], wire[0][4]]).into();
let mut crc_start = 5 + payload_len - crc32::CHECKSUM_LEN;
let mut buf = Vec::new();
@@ -763,9 +764,9 @@ fn damage_nth_fix_crc(
// only way to damage continuations which are 1XXXXXXX (X = any)
wire[pi][byte_index] ^= 0b1000_0000;
if dir == HostToDevice {
recompute_crc::<Device>(wire);
recompute_crc(wire);
} else {
recompute_crc::<Host>(wire);
recompute_crc(wire);
}
log::trace!("damaged+crc {}", hex::encode(&wire[pi]));
index = None;