From: Matt Corallo Date: Thu, 20 Sep 2018 02:47:07 +0000 (-0400) Subject: Remove fuzz channel_target. X-Git-Tag: v0.0.12~304^2~5 X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=commitdiff_plain;h=da6171d50d36403af2c1f09c33b6a105884b4b9c;p=rust-lightning Remove fuzz channel_target. It has bitrotted a lot and doesn't really make sense given all the precondition enforcement that is in channelmanager, sadly. --- diff --git a/fuzz/Cargo.toml b/fuzz/Cargo.toml index 01311f206..a457df1a7 100644 --- a/fuzz/Cargo.toml +++ b/fuzz/Cargo.toml @@ -35,10 +35,6 @@ members = ["."] name = "peer_crypt_target" path = "fuzz_targets/peer_crypt_target.rs" -[[bin]] -name = "channel_target" -path = "fuzz_targets/channel_target.rs" - [[bin]] name = "full_stack_target" path = "fuzz_targets/full_stack_target.rs" diff --git a/fuzz/fuzz_targets/channel_target.rs b/fuzz/fuzz_targets/channel_target.rs deleted file mode 100644 index e7cc6f76c..000000000 --- a/fuzz/fuzz_targets/channel_target.rs +++ /dev/null @@ -1,347 +0,0 @@ -extern crate bitcoin; -extern crate lightning; -extern crate secp256k1; - -use bitcoin::blockdata::block::BlockHeader; -use bitcoin::blockdata::transaction::{Transaction, TxOut}; -use bitcoin::util::hash::Sha256dHash; -use bitcoin::network::serialize::{serialize, BitcoinHash}; - -use lightning::ln::channel::{Channel, ChannelKeys}; -use lightning::ln::channelmanager::{HTLCFailReason, HTLCSource, PendingHTLCStatus}; -use lightning::ln::msgs; -use lightning::ln::msgs::{ErrorAction}; -use lightning::chain::chaininterface::{FeeEstimator, ConfirmationTarget}; -use lightning::chain::transaction::OutPoint; -use lightning::util::reset_rng_state; -use lightning::util::logger::Logger; -use lightning::util::ser::Readable; - -mod utils; - -use utils::test_logger; - -use secp256k1::key::{PublicKey, SecretKey}; -use secp256k1::Secp256k1; - -use std::sync::atomic::{AtomicUsize,Ordering}; -use std::sync::Arc; - -#[inline] -pub fn slice_to_be16(v: &[u8]) -> u16 { - ((v[0] as u16) << 8*1) | - ((v[1] as u16) << 8*0) -} - -#[inline] -pub fn slice_to_be32(v: &[u8]) -> u32 { - ((v[0] as u32) << 8*3) | - ((v[1] as u32) << 8*2) | - ((v[2] as u32) << 8*1) | - ((v[3] as u32) << 8*0) -} - -#[inline] -pub fn slice_to_be64(v: &[u8]) -> u64 { - ((v[0] as u64) << 8*7) | - ((v[1] as u64) << 8*6) | - ((v[2] as u64) << 8*5) | - ((v[3] as u64) << 8*4) | - ((v[4] as u64) << 8*3) | - ((v[5] as u64) << 8*2) | - ((v[6] as u64) << 8*1) | - ((v[7] as u64) << 8*0) -} - -#[inline] -fn slice_to_be24(v: &[u8]) -> u64 { - //TODO: We should probably be returning a Result for channel creation, not panic!()ing on - //>2**24 values... - ((v[0] as u64) << 8*2) | - ((v[1] as u64) << 8*1) | - ((v[2] as u64) << 8*0) -} - -struct InputData<'a> { - data: &'a [u8], - read_pos: AtomicUsize, -} -impl<'a> InputData<'a> { - fn get_slice(&self, len: usize) -> Option<&'a [u8]> { - let old_pos = self.read_pos.fetch_add(len, Ordering::AcqRel); - if self.data.len() < old_pos + len { - return None; - } - Some(&self.data[old_pos..old_pos + len]) - } - fn get_slice_nonadvancing(&self, len: usize) -> Option<&'a [u8]> { - let old_pos = self.read_pos.load(Ordering::Acquire); - if self.data.len() < old_pos + len { - return None; - } - Some(&self.data[old_pos..old_pos + len]) - } -} - -struct FuzzEstimator<'a> { - input: &'a InputData<'a>, -} -impl<'a> FeeEstimator for FuzzEstimator<'a> { - fn get_est_sat_per_1000_weight(&self, _: ConfirmationTarget) -> u64 { - //TODO: We should actually be testing at least much more than 64k... - match self.input.get_slice(2) { - Some(slice) => slice_to_be16(slice) as u64 * 250, - None => 0 - } - } -} - -#[inline] -pub fn do_test(data: &[u8]) { - reset_rng_state(); - - let input = InputData { - data, - read_pos: AtomicUsize::new(0), - }; - let fee_est = FuzzEstimator { - input: &input, - }; - - let logger: Arc = Arc::new(test_logger::TestLogger{}); - - macro_rules! get_slice { - ($len: expr) => { - match input.get_slice($len as usize) { - Some(slice) => slice, - None => return, - } - } - } - - macro_rules! decode_msg { - ($MsgType: path, $len: expr) => {{ - let mut reader = ::std::io::Cursor::new(get_slice!($len)); - match <($MsgType)>::read(&mut reader) { - Ok(msg) => msg, - Err(e) => match e { - msgs::DecodeError::UnknownRealmByte => return, - msgs::DecodeError::UnknownRequiredFeature => return, - msgs::DecodeError::BadPublicKey => return, - msgs::DecodeError::BadSignature => return, - msgs::DecodeError::BadText => return, - msgs::DecodeError::ExtraAddressesPerType => return, - msgs::DecodeError::BadLengthDescriptor => return, - msgs::DecodeError::ShortRead => panic!("We picked the length..."), - msgs::DecodeError::InvalidValue => panic!("Should not happen with p2p message decoding"), - msgs::DecodeError::Io(e) => panic!(format!("{}", e)), - } - } - }} - } - - macro_rules! decode_msg_with_len16 { - ($MsgType: path, $begin_len: expr, $factor: expr) => { - { - let extra_len = slice_to_be16(&match input.get_slice_nonadvancing($begin_len as usize + 2) { - Some(slice) => slice, - None => return, - }[$begin_len..$begin_len + 2]); - decode_msg!($MsgType, $begin_len as usize + 2 + (extra_len as usize)*$factor) - } - } - } - - let secp_ctx = Secp256k1::new(); - macro_rules! get_pubkey { - () => { - match PublicKey::from_slice(&secp_ctx, get_slice!(33)) { - Ok(key) => key, - Err(_) => return, - } - } - } - - macro_rules! return_err { - ($expr: expr) => { - match $expr { - Ok(r) => r, - Err(_) => return, - } - } - } - - macro_rules! chan_keys { - () => { - ChannelKeys { - funding_key: SecretKey::from_slice(&secp_ctx, &[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]).unwrap(), - revocation_base_key: SecretKey::from_slice(&secp_ctx, &[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]).unwrap(), - payment_base_key: SecretKey::from_slice(&secp_ctx, &[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]).unwrap(), - delayed_payment_base_key: SecretKey::from_slice(&secp_ctx, &[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]).unwrap(), - htlc_base_key: SecretKey::from_slice(&secp_ctx, &[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]).unwrap(), - channel_close_key: SecretKey::from_slice(&secp_ctx, &[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]).unwrap(), - channel_monitor_claim_key: SecretKey::from_slice(&secp_ctx, &[0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]).unwrap(), - commitment_seed: [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], - } - } - } - - let their_pubkey = get_pubkey!(); - - let mut tx = Transaction { version: 0, lock_time: 0, input: Vec::new(), output: Vec::new() }; - - let mut channel = if get_slice!(1)[0] != 0 { - let chan_value = slice_to_be24(get_slice!(3)); - - let mut chan = match Channel::new_outbound(&fee_est, chan_keys!(), their_pubkey, chan_value, slice_to_be24(get_slice!(3)), get_slice!(1)[0] == 0, slice_to_be64(get_slice!(8)), Arc::clone(&logger)) { - Ok(chan) => chan, - Err(_) => return, - }; - chan.get_open_channel(Sha256dHash::from(get_slice!(32)), &fee_est); - let accept_chan = if get_slice!(1)[0] == 0 { - decode_msg_with_len16!(msgs::AcceptChannel, 270, 1) - } else { - decode_msg!(msgs::AcceptChannel, 270) - }; - return_err!(chan.accept_channel(&accept_chan)); - - tx.output.push(TxOut{ value: chan_value, script_pubkey: chan.get_funding_redeemscript().to_v0_p2wsh() }); - let funding_output = OutPoint::new(Sha256dHash::from_data(&serialize(&tx).unwrap()[..]), 0); - - chan.get_outbound_funding_created(funding_output).unwrap(); - let funding_signed = decode_msg!(msgs::FundingSigned, 32+64); - return_err!(chan.funding_signed(&funding_signed)); - chan - } else { - let open_chan = if get_slice!(1)[0] == 0 { - decode_msg_with_len16!(msgs::OpenChannel, 2*32+6*8+4+2*2+6*33+1, 1) - } else { - decode_msg!(msgs::OpenChannel, 2*32+6*8+4+2*2+6*33+1) - }; - let mut chan = match Channel::new_from_req(&fee_est, chan_keys!(), their_pubkey, &open_chan, slice_to_be64(get_slice!(8)), false, get_slice!(1)[0] == 0, Arc::clone(&logger)) { - Ok(chan) => chan, - Err(_) => return, - }; - chan.get_accept_channel(); - - tx.output.push(TxOut{ value: open_chan.funding_satoshis, script_pubkey: chan.get_funding_redeemscript().to_v0_p2wsh() }); - let funding_output = OutPoint::new(Sha256dHash::from_data(&serialize(&tx).unwrap()[..]), 0); - - let mut funding_created = decode_msg!(msgs::FundingCreated, 32+32+2+64); - funding_created.funding_txid = funding_output.txid.clone(); - funding_created.funding_output_index = funding_output.index; - return_err!(chan.funding_created(&funding_created)); - chan - }; - - let mut header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 }; - channel.block_connected(&header, 1, &[&tx; 1], &[42; 1]); - for i in 2..100 { - header = BlockHeader { version: 0x20000000, prev_blockhash: header.bitcoin_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 }; - channel.block_connected(&header, i, &[&tx; 0], &[0; 0]); - } - - let funding_locked = decode_msg!(msgs::FundingLocked, 32+33); - return_err!(channel.funding_locked(&funding_locked)); - - macro_rules! test_err { - ($expr: expr) => { - match $expr { - Ok(r) => Some(r), - Err(e) => match e.action { - None => return, - Some(ErrorAction::DisconnectPeer {..}) => return, - Some(ErrorAction::IgnoreError) => None, - Some(ErrorAction::SendErrorMessage {..}) => None, - }, - } - } - } - - loop { - match get_slice!(1)[0] { - 0 => { - test_err!(channel.send_htlc(slice_to_be64(get_slice!(8)), [42; 32], slice_to_be32(get_slice!(4)), HTLCSource::dummy(), msgs::OnionPacket { - version: get_slice!(1)[0], - public_key: PublicKey::from_slice(&secp_ctx, get_slice!(33)), - hop_data: [0; 20*65], - hmac: [0; 32], - })); - }, - 1 => { - test_err!(channel.send_commitment()); - }, - 2 => { - let update_add_htlc = decode_msg!(msgs::UpdateAddHTLC, 32+8+8+32+4+4+33+20*65+32); - test_err!(channel.update_add_htlc(&update_add_htlc, PendingHTLCStatus::dummy())); - }, - 3 => { - let update_fulfill_htlc = decode_msg!(msgs::UpdateFulfillHTLC, 32 + 8 + 32); - test_err!(channel.update_fulfill_htlc(&update_fulfill_htlc)); - }, - 4 => { - let update_fail_htlc = decode_msg_with_len16!(msgs::UpdateFailHTLC, 32 + 8, 1); - test_err!(channel.update_fail_htlc(&update_fail_htlc, HTLCFailReason::dummy())); - }, - 5 => { - let update_fail_malformed_htlc = decode_msg!(msgs::UpdateFailMalformedHTLC, 32+8+32+2); - test_err!(channel.update_fail_malformed_htlc(&update_fail_malformed_htlc, HTLCFailReason::dummy())); - }, - 6 => { - let commitment_signed = decode_msg_with_len16!(msgs::CommitmentSigned, 32+64, 64); - test_err!(channel.commitment_signed(&commitment_signed)); - }, - 7 => { - let revoke_and_ack = decode_msg!(msgs::RevokeAndACK, 32+32+33); - test_err!(channel.revoke_and_ack(&revoke_and_ack)); - }, - 8 => { - let update_fee = decode_msg!(msgs::UpdateFee, 32+4); - test_err!(channel.update_fee(&fee_est, &update_fee)); - }, - 9 => { - let shutdown = decode_msg_with_len16!(msgs::Shutdown, 32, 1); - test_err!(channel.shutdown(&fee_est, &shutdown)); - if channel.is_shutdown() { return; } - }, - 10 => { - let closing_signed = decode_msg!(msgs::ClosingSigned, 32+8+64); - let sign_res = test_err!(channel.closing_signed(&fee_est, &closing_signed)); - if sign_res.is_some() && sign_res.unwrap().1.is_some() { - assert!(channel.is_shutdown()); - return; - } - }, - _ => return, - } - } -} - -#[cfg(feature = "afl")] -#[macro_use] extern crate afl; -#[cfg(feature = "afl")] -fn main() { - fuzz!(|data| { - do_test(data); - }); -} - -#[cfg(feature = "honggfuzz")] -#[macro_use] extern crate honggfuzz; -#[cfg(feature = "honggfuzz")] -fn main() { - loop { - fuzz!(|data| { - do_test(data); - }); - } -} - -extern crate hex; -#[cfg(test)] -mod tests { - #[test] - fn duplicate_crash() { - super::do_test(&::hex::decode("00").unwrap()); - } -} diff --git a/src/ln/channel.rs b/src/ln/channel.rs index bc1e8b45d..b207baa9f 100644 --- a/src/ln/channel.rs +++ b/src/ln/channel.rs @@ -263,7 +263,7 @@ const INITIAL_COMMITMENT_NUMBER: u64 = (1 << 48) - 1; // has been completed, and then turn into a Channel to get compiler-time enforcement of things like // calling channel_id() before we're set up or things like get_outbound_funding_signed on an // inbound channel. -pub struct Channel { +pub(super) struct Channel { user_id: u64, channel_id: [u8; 32], diff --git a/src/ln/channelmanager.rs b/src/ln/channelmanager.rs index fbf4b1128..d6246166b 100644 --- a/src/ln/channelmanager.rs +++ b/src/ln/channelmanager.rs @@ -80,23 +80,6 @@ mod channel_held_info { Fail(HTLCFailureMsg), } - #[cfg(feature = "fuzztarget")] - impl PendingHTLCStatus { - pub fn dummy() -> Self { - let secp_ctx = ::secp256k1::Secp256k1::signing_only(); - PendingHTLCStatus::Forward(PendingForwardHTLCInfo { - onion_packet: None, - incoming_shared_secret: SharedSecret::new(&secp_ctx, - &::secp256k1::key::PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&secp_ctx, &[1; 32]).unwrap()), - &SecretKey::from_slice(&secp_ctx, &[1; 32]).unwrap()), - payment_hash: [0; 32], - short_channel_id: 0, - amt_to_forward: 0, - outgoing_cltv_value: 0, - }) - } - } - /// Tracks the inbound corresponding to an outbound HTLC #[derive(Clone)] pub struct HTLCPreviousHopData { @@ -114,7 +97,7 @@ mod channel_held_info { session_priv: SecretKey, }, } - #[cfg(any(test, feature = "fuzztarget"))] + #[cfg(test)] impl HTLCSource { pub fn dummy() -> Self { HTLCSource::OutboundRoute { @@ -125,7 +108,7 @@ mod channel_held_info { } #[derive(Clone)] // See Channel::revoke_and_ack for why, tl;dr: Rust bug - pub enum HTLCFailReason { + pub(crate) enum HTLCFailReason { ErrorPacket { err: msgs::OnionErrorPacket, }, @@ -134,20 +117,8 @@ mod channel_held_info { data: Vec, } } - - #[cfg(feature = "fuzztarget")] - impl HTLCFailReason { - pub fn dummy() -> Self { - HTLCFailReason::Reason { - failure_code: 0, data: Vec::new(), - } - } - } } -#[cfg(feature = "fuzztarget")] -pub use self::channel_held_info::*; -#[cfg(not(feature = "fuzztarget"))] -pub(crate) use self::channel_held_info::*; +pub(super) use self::channel_held_info::*; struct MsgHandleErrInternal { err: msgs::HandleError, diff --git a/src/ln/mod.rs b/src/ln/mod.rs index add8b4df1..fe4eeed8e 100644 --- a/src/ln/mod.rs +++ b/src/ln/mod.rs @@ -9,9 +9,5 @@ pub mod peer_channel_encryptor; #[cfg(not(feature = "fuzztarget"))] pub(crate) mod peer_channel_encryptor; -#[cfg(feature = "fuzztarget")] -pub mod channel; -#[cfg(not(feature = "fuzztarget"))] -pub(crate) mod channel; - +mod channel; mod chan_utils;