Dual-funding spec edits, cleanup #4410
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niftynei
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We're punting on PODLE's for v1 of dual-funded channels
We consolidate to the latest/singular RFC patch for dual-funding, so there's just a single patchfile for the change. Plus we move back to the opener setting the desired feerate, the accepter merely declines to participate if they disagree with the set rate.
> If the peer's revocation basepoint is unknown (e.g. `open_channel2`), > a temporary `channel_id` should be found by using a zeroed out basepoint > for the unknown peer.
The receiving node: ...
- MUST fail the channel if:
- the `witness_stack` weight lowers the effective `feerate`
below the agreed upon transaction `feerate`
The maximum inputs and outputs are capped at 252. This effectively fixes the byte size of the input and output counts on the transaction to one (1).
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rustyrussell
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Mar 9, 2021
| u32 funding_feerate_max; | ||
| u32 funding_feerate_min; | ||
| u32 funding_feerate_best; | ||
| u32 funding_feerate_per_kw; |
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I can't remember why we decided on this. I guess simplicity, and to mirror RBF where you need to decide whether to contribute anyway?
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There've been some spec changes etc. This updates all 'dual-funding' related spec references to the latest spec proposal lightning/bolts#851.
Notable notes:
open_channel2(0'd out basepoint for peer)Built atop of #4399, new commits start at b8806ba
Changelog-None.