In this commit, we update our btcwallet dep to the latest version. This
version includes a bug fix for dust calculation. Without this bug fix,
users would potentially significantly overpay on fees, as dust was
computed using the desired fee of the transaction rather than the min
relay fee.
This update previously happened in 1589810 but was overwritten again by
a later PR. We need to use a version that doesn't include the broken ARM
assembly for poly1305. We might as well use the latest version of the
library.
This commit changes the verification of our code against the spec test
vectors to use a more black box approach. It exercises the channel state
machine via its external interface as much as possible, making this test
more robust. A consequence of this is that the test now runs from the
'root' data from which the test vectors are also derived, meaning that
more code is covered too.
Running from the root data is also a preparation for _producing_ test
vectors for the new anchor commitment format. This will be a matter of
changing the channel type and recording the produced commitment and htlc
txes.
Previously the success transaction was skipped during verification. With
this commit, the proper preimage insertion is carried out, allowing the
success tx to be checked too.
This commit adds an extended STM, similar to what available in etcd's
clientv3 module. This incarnation of said STM supports additional
features, like positioning in key intervals while taking into account
deletes and writes as well. This is a preliminary work to support all
features of the kvdb interface.
The btcsuite/fastsha256 registers itself in the crypto package of
golang as a replacement for sha256. This causes problems in TLS1.3
connections that require the hash implementations to be serializable
and results in the "tls: internal error: failed to clone hash" error.
By removing all uses of the library we fix that error.
In this commit, we update to the latest `btcwallet` version that
includes a fix for how we perform rescans. Before this commit, the
wallet would load ALL the created keys into the wallet to perform a
rescan. This is unnecessary, as many of the keys we create are actually
used in contracts, so the wallet can't spend them directly anyway.
For neutrino nodes, this would've caused them to attempt o match more
items in the filter than necessary, possibly resulting in an increased
number of false positive block fetches.
This commit swaps out golang/protobuf/jsonpb for a custom variant that
by default prints byte slices as hex, which is more useful for our
setting. Some existing wrapper structs are removed as they can now be
printed directly with the new jsonpb.
!!! NOTE !!!
This commit introduces a breaking change to lncli listinvoices since
payment hashes and preimages will now be printed in hex instead of
base64.
The btcwallet update includes some edge-case wallet bug fixes and an
optimization on ZMQ connections for bitcoind backends.
The btcd update allows for compatibility with bitcoind v0.19.0 backends.
