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87 lines
2.8 KiB
87 lines
2.8 KiB
#ifndef LIGHTNING_BITCOIN_SCRIPT_H
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#define LIGHTNING_BITCOIN_SCRIPT_H
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#include "config.h"
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#include "signature.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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struct bitcoin_address;
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struct pubkey;
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struct sha256;
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struct rel_locktime;
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struct abs_locktime;
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/* A bitcoin signature includes one byte for the type. */
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struct bitcoin_signature {
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struct signature sig;
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enum sighash_type stype;
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};
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/* tal_count() gives the length of the script. */
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u8 *bitcoin_redeem_2of2(const tal_t *ctx,
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const struct pubkey *key1,
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const struct pubkey *key2);
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/* tal_count() gives the length of the script. */
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u8 *bitcoin_redeem_single(const tal_t *ctx, const struct pubkey *key);
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/* A common script pattern: A can have it with secret, or B can have
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* it after delay. */
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u8 *bitcoin_redeem_secret_or_delay(const tal_t *ctx,
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const struct pubkey *delayed_key,
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const struct rel_locktime *locktime,
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const struct pubkey *key_if_secret_known,
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const struct sha256 *hash_of_secret);
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/* Create an output script using p2sh for this redeem script. */
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u8 *scriptpubkey_p2sh(const tal_t *ctx, const u8 *redeemscript);
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/* Create an input script to accept pay to pubkey */
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u8 *scriptsig_pay_to_pubkeyhash(const tal_t *ctx,
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const struct pubkey *key,
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const struct bitcoin_signature *sig);
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u8 *scriptpubkey_htlc_send(const tal_t *ctx,
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const struct pubkey *ourkey,
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const struct pubkey *theirkey,
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const struct abs_locktime *htlc_abstimeout,
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const struct rel_locktime *locktime,
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const struct sha256 *commit_revoke,
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const struct sha256 *rhash);
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/* Create a script for our HTLC output: receiving. */
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u8 *scriptpubkey_htlc_recv(const tal_t *ctx,
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const struct pubkey *ourkey,
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const struct pubkey *theirkey,
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const struct abs_locktime *htlc_abstimeout,
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const struct rel_locktime *locktime,
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const struct sha256 *commit_revoke,
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const struct sha256 *rhash);
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/* Create an input script to accept pay to pubkey */
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u8 *scriptsig_p2sh_2of2(const tal_t *ctx,
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const struct bitcoin_signature *sig1,
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const struct bitcoin_signature *sig2,
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const struct pubkey *key1,
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const struct pubkey *key2);
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/* Create an input script to solve by secret */
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u8 *scriptsig_p2sh_secret(const tal_t *ctx,
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const void *secret, size_t secret_len,
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const struct bitcoin_signature *sig,
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const u8 *redeemscript,
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size_t redeem_len);
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/* Create an input script which pushes sigs then redeem script. */
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u8 *scriptsig_p2sh_single_sig(const tal_t *ctx,
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const u8 *redeem_script,
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size_t redeem_len,
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const struct bitcoin_signature *sig);
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/* Is this a normal pay to pubkey hash? */
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bool is_pay_to_pubkey_hash(const u8 *script, size_t script_len);
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/* Is this a pay to script hash? */
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bool is_p2sh(const u8 *script, size_t script_len);
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#endif /* LIGHTNING_BITCOIN_SCRIPT_H */
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