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chainreg: update tapoort node awareness to account for bitcoind 19+

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Bitcoind 23 will use the new `getdeploymentinfo` while versions after 19
(but below 23) will use the `UnifiedSoftForks` field instead of the
`SoftForks UnifiedSoftForks` field.

With this PR the taproot gating logic has been tested on bitcoind
versions: 21, 22, and 23. 21 is when the taproot logic was first added.
This commit is contained in:
Olaoluwa Osuntokun 2022-08-12 15:29:54 -07:00
parent dc453f2c39
commit 6b7abc3dbc
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GPG Key ID: 3BBD59E99B280306
2 changed files with 15 additions and 2 deletions
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13
chainreg/taproot_check.go
View File

@ -14,11 +14,22 @@ func backendSupportsTaproot(rpc *rpcclient.Client) bool {
if err == nil {
// If this call worked, then we'll check that the taproot
// deployment is defined.
if chainInfo.SoftForks != nil {
switch {
// Bitcoind versions before 0.19 and also btcd use the
// SoftForks fields.
case chainInfo.SoftForks != nil:
_, ok := chainInfo.SoftForks.Bip9SoftForks["taproot"]
if ok {
return ok
}
// Bitcoind versions after 0.19 will use the UnifiedSoftForks
// field that factors in the set of "buried" soft forks.
case chainInfo.UnifiedSoftForks != nil:
_, ok := chainInfo.UnifiedSoftForks.SoftForks["taproot"]
if ok {
return ok
}
}
}

4
docs/release-notes/release-notes-0.15.1.md
View File

@ -30,7 +30,9 @@ of the draft BIP.
## Taproot
[`lnd` will now refuse to start if it detects the full node backend does not
support Tapoot](https://github.com/lightningnetwork/lnd/pull/6798).
support Tapoot](https://github.com/lightningnetwork/lnd/pull/6798). [With this
change](https://github.com/lightningnetwork/lnd/pull/6826), the officially
supported versions of bitcoind are: 21, 22, and 23.
[`lnd` will now use taproot addresses for co-op closes if the remote peer
supports the feature.](https://github.com/lightningnetwork/lnd/pull/6633)