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273029f244
This sets the nLockTime to the tip (and accordingly each input's nSequence to 0xfffffffe) for withdrawal transactions. Even if the anti fee-sniping argument might not be valid until some time yet, this makes our regular wallet transactions far less distinguishable from bitcoind's ones since it now defaults to using native Segwit transactions (like us). Moreover other wallets are likely to implement this (if they haven't already). Changelog-Added: wallet: withdrawal transactions now sets nlocktime to the current tip.
60 lines
1.6 KiB
C
60 lines
1.6 KiB
C
#ifndef LIGHTNING_COMMON_UTXO_H
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#define LIGHTNING_COMMON_UTXO_H
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#include "config.h"
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#include <bitcoin/chainparams.h>
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#include <bitcoin/pubkey.h>
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#include <bitcoin/shadouble.h>
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#include <bitcoin/tx.h>
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#include <ccan/short_types/short_types.h>
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#include <ccan/tal/tal.h>
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#include <common/amount.h>
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#include <common/node_id.h>
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#include <stdbool.h>
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struct ext_key;
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/* Information needed for their_unilateral/to-us outputs */
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struct unilateral_close_info {
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u64 channel_id;
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struct node_id peer_id;
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/* NULL if this is an option_static_remotekey commitment */
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struct pubkey *commitment_point;
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};
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struct utxo {
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struct bitcoin_txid txid;
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u32 outnum;
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struct amount_sat amount;
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u32 keyindex;
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bool is_p2sh;
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u8 status;
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/* Optional unilateral close information, NULL if this is just
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* a HD key */
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struct unilateral_close_info *close_info;
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/* NULL if we haven't seen it in a block, otherwise the block it's in */
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const u32 *blockheight;
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/* NULL if not spent yet, otherwise, the block the spending transaction is in */
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const u32 *spendheight;
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/* The scriptPubkey if it is known */
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u8 *scriptPubkey;
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};
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void towire_utxo(u8 **pptr, const struct utxo *utxo);
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struct utxo *fromwire_utxo(const tal_t *ctx, const u8 **ptr, size_t *max);
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/* Create a tx, and populate inputs from utxos */
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struct bitcoin_tx *tx_spending_utxos(const tal_t *ctx,
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const struct chainparams *chainparams,
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const struct utxo **utxos,
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const struct ext_key *bip32_base,
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bool add_change_output,
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size_t num_output,
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u32 nlocktime,
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u32 nsequence);
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#endif /* LIGHTNING_COMMON_UTXO_H */
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