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caf50c9ae4
We now need to use bitcoin_witness_htlc with the r value, so that API is updated to take 'struct rval' or 'struct sha256'. We use the nc->delay amount (ie. dstate->config.min_htlc_expiry) to wait for a timeout refund to be buried before "failing" upstream. This should probably be made into a clearer parameter rather than overloading this one. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Header from folded patch 'dont-use-peer-nc-in-onchain-code.patch': peer: Don't use peer->nc->delay for onchain case. Use the config var directly. We should be freeing peer->nc when the connection dies anyway. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
103 lines
3.5 KiB
C
103 lines
3.5 KiB
C
#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 "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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struct bitcoin_address;
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struct bitcoin_tx_input;
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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 the redeemscript for a P2SH + P2WPKH. */
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u8 *bitcoin_redeem_p2wpkh(const tal_t *ctx, const struct pubkey *key);
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/* Create a witness which spends the 2of2. */
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void bitcoin_witness_p2sh_p2wpkh(const tal_t *ctx,
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struct bitcoin_tx_input *input,
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const struct bitcoin_signature *sig,
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const struct pubkey *key);
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/* Create scriptcode (fake witness, basically) for P2WPKH */
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u8 *p2wpkh_scriptcode(const tal_t *ctx, const struct pubkey *key);
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/* Create a script for our HTLC output: sending. */
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u8 *bitcoin_redeem_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 *bitcoin_redeem_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 output script for a 32-byte witness program. */
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u8 *scriptpubkey_p2wsh(const tal_t *ctx, const u8 *witnessscript);
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/* Create an output script for a 20-byte witness program. */
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u8 *scriptpubkey_p2wpkh(const tal_t *ctx, const struct pubkey *key);
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/* Create a witness which spends the 2of2. */
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u8 **bitcoin_witness_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 a witness which spends a "secret_or_delay" scriptpubkey */
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u8 **bitcoin_witness_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 *witnessscript);
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/* Create a witness which spends bitcoin_redeeem_htlc_recv/send */
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u8 **bitcoin_witness_htlc(const tal_t *ctx,
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const void *htlc_or_revocation_preimage,
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const struct bitcoin_signature *sig,
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const u8 *witnessscript);
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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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/* Are these two scripts equal? */
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bool scripteq(const u8 *s1, size_t s1len, const u8 *s2, size_t s2len);
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#endif /* LIGHTNING_BITCOIN_SCRIPT_H */
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