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i can decrypt the length

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nora 2024-08-10 17:17:22 +02:00
parent adff1f593b
commit 08d28a152f
6 changed files with 102 additions and 50 deletions
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18
ssh-transport/src/packet.rs
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@ -9,7 +9,7 @@ use crate::Result;
pub(crate) struct PacketTransport {
state: PacketTransportState,
packets: VecDeque<Packet>,
next_recv_seq_nr: u32,
next_recv_seq_nr: u64,
}
enum PacketTransportState {
@ -62,11 +62,17 @@ impl PacketTransport {
}
}
PacketTransportState::Keyed { session } => {
// TODO: don't yolo?...
let encrypted_len = &bytes[..4];
// TODO: all of this is nonsense. how does AEAD even work with these partial decryptions?
// should i just validate it by hand?? i will find out tomorrow!
let decrypted_len = session.decrypt_bytes(encrypted_len)?;
let mut len = [0_u8; 4];
let Some(len_bytes) = bytes.get(0..4) else {
return Err(client_error!(
"packet too short, not enough bytes for length"
));
};
len.copy_from_slice(len_bytes);
session.decrypt_len(&mut len, self.next_recv_seq_nr);
let len = u32::from_be_bytes(len);
dbg!(len);
// TODO: dont assume we get it all as one.... AAaAAA
}
}