In this commit, we add a new field `TapTweak` to be used for key path
spends. Before this commit, we'd overload the existing `WitnessScript`
field to pass this information to the signing context. This was
confusing as for tapscript spends, this was the leaf script, which
mirrors the other script based spending types.
With this new filed, users need to set this to the script root for
keypath spends where the output key commits to a real merkle root, and
nothing when bip 86 spending is being used.
To make the signing even more explicit, we also add a new field called
sign_method with an enum type that differentiates between the different
segwit v0 and v1 signing methods.
Fixes https://github.com/lightningnetwork/lnd/issues/6446.
Fixes#6396.
This commit fixes a panic that occurred when trying to sign for a
Taproot output without specifying the full UTXO information for each
input. Instead of panicking an error is now returned.
In this commit, we start to ignore the option to allow the caller to use
the legacy onion payload. The new payload is much more flexible and
efficient, so there's really no reason to still use it, other than for
backwards compatibility tests. Our existing tests that exercise the
legacy feature uses a build tag, which forces nodes to not advertise the
new payload format, which then forces path finding to include the legacy
payload, so we can be confident that route is still being tested.
The existence of this option (which actually makes the TLV payload
opt-in for `SendToRoute` users) makes it harder to remove it from the
protocol all together. With this PR, we take a step forward to allowing
such a change which is being tracked on the spec level at:
https://github.com/lightning/bolts/pull/962.
In a future release, we'll move to remove the field all together.
Ignoring the field today doesn't seem to have any clear downsides, as
most payments always include the MPP payload (due to payment secrets),
so this shouldn't impact users in a significant way.
The `log.go` file of each subserver is a copy and paste of the others.
All of them have the same typo, an extra space in a comment, and the
the definition of a function not used anywhere.
Was discovered in a race unit test in lightning node connect that uses
the websocket proxy to connect to the hashmail server on the client
side.
By not shadowing the err variable we end up reading and writing to the
same variable from two different goroutines, which causes the data race.
Because Taproot key spend only spends don't allow us to re-construct the
spent pkScript from the witness alone, we cannot support registering
spend notifications for v1 pkScripts only. We instead require the
outpoint to be specified. This commit makes it possible to only match by
outpoint and also adds an itest for it.
To help debug remote signing issues, it's helpful to get the raw PSBT
that failed to be parsed. This is necessary since serializing an invalid
PSBT is allowed and the checks only fail when trying to de-serialize
such an invalid packet.
