core-lightning/closingd/closing_wire.csv
Vasil Dimov 158d2212c2 closingd: configurable closing fee negotiation step
When negotiating the transaction fee for closing a channel [1], we used
to always pick the middle of the range between our proposal and the
peer's proposal.

Introduce a new option `fee_negotiation_step` to the close command, so
the peer who initiates the close can choose his back off step.

Partially resolves https://github.com/ElementsProject/lightning/issues/3270

[1] https://github.com/lightningnetwork/lightning-rfc/blob/master/02-peer-protocol.md#closing-negotiation-closing_signed

Changelog-Added: New optional parameter to the `close` command to control the closing transaction fee negotiation back off step
2020-04-07 13:52:48 +09:30

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#include <common/cryptomsg.h>
#include <common/htlc_wire.h>
#include <common/per_peer_state.h>
# Begin! (passes peer fd, gossipd-client fd)
msgtype,closing_init,2001
msgdata,closing_init,chainparams,chainparams,
msgdata,closing_init,pps,per_peer_state,
msgdata,closing_init,funding_txid,bitcoin_txid,
msgdata,closing_init,funding_txout,u16,
msgdata,closing_init,funding_satoshi,amount_sat,
msgdata,closing_init,local_fundingkey,pubkey,
msgdata,closing_init,remote_fundingkey,pubkey,
msgdata,closing_init,funder,enum side,
msgdata,closing_init,local_sat,amount_sat,
msgdata,closing_init,remote_sat,amount_sat,
msgdata,closing_init,our_dust_limit,amount_sat,
msgdata,closing_init,min_fee_satoshi,amount_sat,
msgdata,closing_init,fee_limit_satoshi,amount_sat,
msgdata,closing_init,initial_fee_satoshi,amount_sat,
msgdata,closing_init,local_scriptpubkey_len,u16,
msgdata,closing_init,local_scriptpubkey,u8,local_scriptpubkey_len
msgdata,closing_init,remote_scriptpubkey_len,u16,
msgdata,closing_init,remote_scriptpubkey,u8,remote_scriptpubkey_len
msgdata,closing_init,fee_negotiation_step,u64,
msgdata,closing_init,fee_negotiation_step_unit,u8,
msgdata,closing_init,reconnected,bool,
msgdata,closing_init,next_index_local,u64,
msgdata,closing_init,next_index_remote,u64,
msgdata,closing_init,revocations_received,u64,
msgdata,closing_init,channel_reestablish_len,u16,
msgdata,closing_init,channel_reestablish,u8,channel_reestablish_len
msgdata,closing_init,last_remote_secret,secret,
msgdata,closing_init,dev_fast_gossip,bool,
# We received an offer, save signature.
msgtype,closing_received_signature,2002
msgdata,closing_received_signature,signature,bitcoin_signature,
msgdata,closing_received_signature,tx,bitcoin_tx,
msgtype,closing_received_signature_reply,2102
msgdata,closing_received_signature_reply,closing_txid,bitcoin_txid,
# Negotiations complete, we're exiting.
msgtype,closing_complete,2004