If we call get_update_fulfill_htlc (in this case via
ChannelManager::claim_funds_internal ->
Channel::get_update_fulfill_htlc_and_commit) and it finds that we
already have a holding-cell pending HTLC claim, it will return no
monitor update but leave latest_monitor_update_id incremented.
If we later go and add a new monitor update we'll panic as the
updates appear to have been applied out-of-order.
Bumping of justice txn on revoked HTLC-Success/HTLC-timeout is triggered
until our claim is confirmed onchain with at least
ANTI_REORG_DELAY_SAFE. Before this patch, we weren't tracking them in
check_spend_remote_htlc, leading us to infinite bumps.
Fix#411
Small fixes by Matt Corallo <git@bluematt.me>
Adjusted tx occurs when a previous aggregated claim tx has
seen one of its outpoint being partially claimed by a remote tx.
To pursue claiming of the remaining outpoint a adjusted claim tx
is generated with leftover of claimable outpoints.
Previously, in case of block-rescan where a partial claim occurs,
we would generate duplicated adjusted tx, wrongly inflating feerate
for next bumps. At rescan, if input has already been dropped from
outpoints map from a claiming request, don't regenerate again
a adjuste tx.
3d640da5c3 changed the indexes for
some enums in ChannelMonitor deserialization but not serialization.
Thus, the chanmon_deser_target fuzz target failed on travis on at
least one PR.
Enforce a minimum htlc_minimum_msat of 1.
Instead of computing dynamically htlc_minimum_msat based on feerate,
relies on user-provided configuration value. This let user compute
an economical-driven channel parameter according to network dynamics.
If rust-lightning tells us to disconnect a socket after we read
some bytes from the socket, but before we actually give those bytes
to rust-lightning, we may end up calling rust-lightning with a
Descriptor that isn't registered anymore.
Sadly, there really isn't a good way to solve this, and it should
be a pretty quick event, so we just busy-wait.
Failing this requirement at sending means a strict receiver would
fail our channel while processing a HTLC routed from a third-party.
Fix by enforcing check on both sender and receiver side.
This was the way DataLossProtect was originally written, however it
didn't match other implementations at the time during testing. It
turns out, other implementations didn't agree with each other
anyway (depending on the exact timeline), so the spec was clarified
somewhat in https://github.com/lightningnetwork/lightning-rfc/pull/550
. This updates us to be in line with the new guidance and appears
to solve out-of-sync issues in testing.
Fixes issue #493 and should resolve some issues where other nodes
(incorrectly) reject channel_update/node_announcement messages
which have a serial number that is not a relatively recent
timestamp.
This is a somewhat-obvious oversight in the capabilities of
rust-lightning, though not a particularly interesting one until we
start relying on node_features (eg for variable-length-onions and
Base AMP).
Sadly its not fully automated as we don't really want to store the
list of available addresses from the user. However, with a simple
call to ChannelManager::broadcast_node_announcement and a sensible
peer_handler, the announcement is made.
This reintroduces a check_spends!() removed in 3d640da5c3
due to check_spends not being able to check a transaction which
spends multiple other transactions.
It also simplifies a few calls in claim_htlc_outputs_single_tx by
using check_spends!().
The API to rust-bitcoin to check a transaction correctly spends
another changed some time ago, but we still have a lot of needless
.clone()s in our tests.
Instead of passing a Vec of Vecs drop them into one as we go in
ChannelMonitor, hopefully avoiding a bit of memory fragmentation
and improving readability.
Encapsulates tracking and bumping of in-flight transactions in
its own component. This component may be latter abstracted
to reuse tracking and RBF for new features (e.g dual-funding,
splicing)
Build all transactions generation in one place. Also as fees
and signatures are closely tied, what keys do you have determine
what bumping mode you can use.
