Remove OptionalField and make DataLossProtect fields mandatory
#2253
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The fields provided by `DataLossProtect` have been mandatory since lightning/bolts@6656b70, regardless of whether `option_dataloss_protect` or `option_remote_key` feature bits are set. We move the fields out of `DataLossProtect` to make encoding definitions more succinct with `impl_writeable_msg!` and to reduce boilerplate. This paves the way for completely removing `OptionalField` in subsequent commits.
TheBlueMatt
reviewed
May 1, 2023
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Oops. Broke taproot cfgs along the way. Will fix. |
As pointed out in lightning/bolts@6656b70, we can move the `shutdown_scriptpubkey` field into the TLV streams of `OpenChannel` and `AcceptChannel` without affecting the resulting encoding. We use `WithoutLength` encoding here to ensure that we do not encode a length prefix along with `Script` as is normally the case.
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📣 This organization is not using Codecov’s GitHub App Integration. We recommend you install it so Codecov can continue to function properly for your repositories. Learn more Additional details and impacted files@@ Coverage Diff @@
## main #2253 +/- ##
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+ Coverage 91.59% 92.05% +0.45%
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Files 104 104
Lines 51976 55468 +3492
Branches 51976 55468 +3492
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+ Hits 47609 51062 +3453
- Misses 4367 4406 +39
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We need to update the channelmanager feature set to set |
wpaulino
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May 2, 2023
TheBlueMatt
approved these changes
May 2, 2023
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As per lightning/bolts@6656b70, we do three main things here:
Make
DataLossProtectfields required and move them directly intoChannelReestablish.These fields have been made mandatory regardless of whether
option_dataloss_protectoroption_remote_keyfeature bits are set.Move
shutdown_scriptpubkeyinto TLV stream.We can move the
shutdown_scriptpubkeyfield into the TLV streams ofOpenChannelandAcceptChannelwithout affecting the resulting encoding as per the BOLT commit linked above.Remove
OptionalFieldentirely as it is obsolete.Blocks #1794