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e362c3bb12
Adds the BOLT3 simple closing transaction builder: - sequence 0xFFFFFFFD (RBF-signalling) - locktime from closing_complete - closer pays fee (their output is reduced) - dust outputs are omitted and a zero-value OP_RETURN is used when both outputs would be dust.
37 lines
1.4 KiB
C
37 lines
1.4 KiB
C
#ifndef LIGHTNING_COMMON_CLOSE_TX_H
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#define LIGHTNING_COMMON_CLOSE_TX_H
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#include "config.h"
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#include <bitcoin/tx.h>
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struct ext_key;
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/* Create close tx to spend the anchor tx output; doesn't fill in
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* input scriptsig. */
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struct bitcoin_tx *create_close_tx(const tal_t *ctx,
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const struct chainparams *chainparams,
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u32 *local_wallet_index,
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const struct ext_key *local_wallet_ext_key,
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const u8 *our_script,
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const u8 *their_script,
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const u8 *funding_wscript,
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const struct bitcoin_outpoint *funding,
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struct amount_sat funding_sats,
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struct amount_sat to_us,
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struct amount_sat to_them,
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struct amount_sat dust_limit);
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/* Create simple close tx (option_simple_close) to spend the anchor tx output.
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* The closer pays the fee; closee output is omitted if closee_script is NULL.
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* Closer output is omitted if closer_script is NULL (or OP_RETURN with amount 0).
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* Uses sequence 0xFFFFFFFD (RBF) and the specified locktime. */
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struct bitcoin_tx *create_simple_close_tx(const tal_t *ctx,
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u32 *local_wallet_index,
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const struct ext_key *local_wallet_ext_key,
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const u8 *closer_script,
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const u8 *closee_script,
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const u8 *funding_wscript,
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const struct bitcoin_outpoint *funding,
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struct amount_sat funding_sats,
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struct amount_sat closer_amount,
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struct amount_sat closee_amount,
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u32 locktime);
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#endif /* LIGHTNING_COMMON_CLOSE_TX_H */
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