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rgb-cln/devtools/mkcommit.c

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/* Code to make a commitment tx, useful for generating test cases.
*
* For example, in the spec tests we use the following:
*
* lightning/devtools/mkcommit 0 41085b995c1f591cfc3ae79ccde012bf0b37c7bde23d80a61c9732bdd6210b2f 0 999878sat 253 999878sat local \
5 546 9998sat \
6 546 9998sat \
0000000000000000000000000000000000000000000000000000000000000020 0000000000000000000000000000000000000000000000000000000000000000 0000000000000000000000000000000000000000000000000000000000000021 0000000000000000000000000000000000000000000000000000000000000022 0000000000000000000000000000000000000000000000000000000000000023 0000000000000000000000000000000000000000000000000000000000000024 \
0000000000000000000000000000000000000000000000000000000000000010 FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF 0000000000000000000000000000000000000000000000000000000000000011 0000000000000000000000000000000000000000000000000000000000000012 0000000000000000000000000000000000000000000000000000000000000013 0000000000000000000000000000000000000000000000000000000000000014
*/
#include "config.h"
#include <bitcoin/chainparams.h>
#include <bitcoin/script.h>
#include <ccan/cast/cast.h>
#include <ccan/err/err.h>
#include <ccan/opt/opt.h>
#include <ccan/str/hex/hex.h>
#include <ccan/tal/str/str.h>
#include <channeld/full_channel.h>
#include <common/blockheight_states.h>
#include <common/channel_type.h>
#include <common/fee_states.h>
#include <common/htlc_wire.h>
#include <common/key_derive.h>
#include <common/status.h>
#include <common/type_to_string.h>
#include <common/version.h>
#include <inttypes.h>
#include <stdio.h>
static bool verbose = false;
void status_fmt(enum log_level level,
const struct node_id *node_id,
const char *fmt, ...)
{
if (verbose) {
va_list ap;
va_start(ap, fmt);
printf("#TRACE: ");
vprintf(fmt, ap);
printf("\n");
va_end(ap);
}
}
void status_failed(enum status_failreason reason, const char *fmt, ...)
{
abort();
}
static int parse_secrets(char *argv[],
struct secrets *secrets,
struct sha256 *seed,
const char *desc)
{
int argnum = 0;
if (!hex_decode(argv[argnum], strlen(argv[argnum]),
&secrets->funding_privkey,
sizeof(secrets->funding_privkey)))
errx(1, "Parsing %s.funding_privkey", desc);
argnum++;
if (!hex_decode(argv[argnum], strlen(argv[argnum]),
seed, sizeof(*seed)))
errx(1, "Parsing %s seed", desc);
argnum++;
if (!hex_decode(argv[argnum], strlen(argv[argnum]),
&secrets->revocation_basepoint_secret,
sizeof(secrets->revocation_basepoint_secret)))
errx(1, "Parsing %s.revocation_basepoint_secret", desc);
argnum++;
if (!hex_decode(argv[argnum], strlen(argv[argnum]),
&secrets->payment_basepoint_secret,
sizeof(secrets->payment_basepoint_secret)))
errx(1, "Parsing %s.payment_basepoint_secret", desc);
argnum++;
if (!hex_decode(argv[argnum], strlen(argv[argnum]),
&secrets->delayed_payment_basepoint_secret,
sizeof(secrets->delayed_payment_basepoint_secret)))
errx(1, "Parsing %s.delayed_payment_basepoint_secret", desc);
argnum++;
if (!hex_decode(argv[argnum], strlen(argv[argnum]),
&secrets->htlc_basepoint_secret,
sizeof(secrets->htlc_basepoint_secret)))
errx(1, "Parsing %s.htlc_basepoint_secret", desc);
argnum++;
return argnum;
}
static void print_basepoints(const char *desc,
const struct secrets *secrets,
const struct sha256 *shaseed,
const struct basepoints *basepoints,
const struct pubkey *fundingkey,
u64 commitnum)
{
struct secret per_commitment_secret;
struct pubkey per_commitment_point;
printf("## %s\n", desc);
printf("# funding_privkey=%s\n",
type_to_string(NULL, struct secret, &secrets->funding_privkey.secret));
printf("funding_pubkey=%s\n",
type_to_string(NULL, struct pubkey, fundingkey));
printf("# revocation_basepoint_secret=%s\n",
type_to_string(NULL, struct secret,
&secrets->revocation_basepoint_secret));
printf("revocation_basepoint=%s\n",
type_to_string(NULL, struct pubkey, &basepoints->revocation));
printf("# payment_basepoint_secret=%s\n",
type_to_string(NULL, struct secret,
&secrets->payment_basepoint_secret));
printf("payment_basepoint=%s\n",
type_to_string(NULL, struct pubkey, &basepoints->payment));
printf("# delayed_payment_basepoint_secret=%s\n",
type_to_string(NULL, struct secret,
&secrets->delayed_payment_basepoint_secret));
printf("delayed_payment_basepoint=%s\n",
type_to_string(NULL, struct pubkey, &basepoints->delayed_payment));
printf("# htlc_basepoint_secret=%s\n",
type_to_string(NULL, struct secret,
&secrets->htlc_basepoint_secret));
printf("htlc_basepoint=%s\n",
type_to_string(NULL, struct pubkey, &basepoints->htlc));
if (!per_commit_secret(shaseed, &per_commitment_secret, commitnum))
errx(1, "Bad deriving %s per_commitment_secret #%"PRIu64,
desc, commitnum);
if (!per_commit_point(shaseed, &per_commitment_point, commitnum))
errx(1, "Bad deriving %s per_commitment_point #%"PRIu64,
desc, commitnum);
printf("# shachain seed=%s\n",
type_to_string(NULL, struct sha256, shaseed));
printf("# per_commitment_secret %"PRIu64"=%s\n",
commitnum,
type_to_string(NULL, struct secret, &per_commitment_secret));
printf("per_commitment_point %"PRIu64"=%s\n\n",
commitnum,
type_to_string(NULL, struct pubkey, &per_commitment_point));
}
static int parse_config(char *argv[],
struct channel_config *config,
const char *desc)
{
int argnum = 0;
config->id = 0;
/* FIXME: Allow overriding these on cmdline! */
config->max_htlc_value_in_flight = AMOUNT_MSAT(-1ULL);
config->htlc_minimum = AMOUNT_MSAT(0);
config->max_accepted_htlcs = 483;
config->max_dust_htlc_exposure_msat = AMOUNT_MSAT(-1ULL);
config->to_self_delay = atoi(argv[argnum]);
argnum++;
if (!parse_amount_sat(&config->dust_limit,
argv[argnum], strlen(argv[argnum])))
errx(1, "Bad %s dustlimit", desc);
argnum++;
if (!parse_amount_sat(&config->channel_reserve,
argv[argnum], strlen(argv[argnum])))
errx(1, "Bad %s reserve", desc);
argnum++;
return argnum;
}
static int parse_htlc(char *argv[], struct existing_htlc ***htlcs)
{
struct existing_htlc *exist = tal(*htlcs, struct existing_htlc);
int argnum = 0;
exist->id = tal_count(*htlcs);
if (streq(argv[argnum], "local"))
exist->state = SENT_ADD_ACK_REVOCATION;
else if (streq(argv[argnum], "remote"))
exist->state = RCVD_ADD_ACK_REVOCATION;
else
errx(1, "Bad htlc offer: %s should be 'local' or 'remote'",
argv[argnum]);
argnum++;
exist->payment_preimage = tal(*htlcs, struct preimage);
if (!hex_decode(argv[argnum], strlen(argv[argnum]),
exist->payment_preimage, sizeof(*exist->payment_preimage)))
errx(1, "Bad payment-preimage %s", argv[argnum]);
sha256(&exist->payment_hash, exist->payment_preimage,
sizeof(*exist->payment_preimage));
argnum++;
if (!parse_amount_msat(&exist->amount,
argv[argnum], strlen(argv[argnum])))
errx(1, "Bad htlc amount %s", argv[argnum]);
argnum++;
exist->cltv_expiry = atoi(argv[argnum]);
argnum++;
printf("# HTLC %"PRIu64": %s amount=%s preimage=%s payment_hash=%s cltv=%u\n",
exist->id, argv[0],
type_to_string(tmpctx, struct amount_msat, &exist->amount),
type_to_string(tmpctx, struct preimage, exist->payment_preimage),
type_to_string(tmpctx, struct sha256, &exist->payment_hash),
exist->cltv_expiry);
tal_arr_expand(htlcs, exist);
return argnum;
}
static const struct preimage *preimage_of(const struct sha256 *hash,
const struct existing_htlc **htlcs)
{
for (size_t i = 0; i < tal_count(htlcs); i++)
if (sha256_eq(hash, &htlcs[i]->payment_hash))
return htlcs[i]->payment_preimage;
abort();
}
static char *sig_as_hex(const struct bitcoin_signature *sig)
{
u8 compact_sig[64];
secp256k1_ecdsa_signature_serialize_compact(secp256k1_ctx,
compact_sig,
&sig->s);
return tal_hexstr(NULL, compact_sig, sizeof(compact_sig));
}
static char *sig_notation(const struct sha256_double *hash,
const struct privkey *privkey,
const struct bitcoin_signature *sig)
{
const char *pstr = tal_hexstr(NULL, privkey->secret.data, sizeof(privkey->secret.data));
const char *hstr = type_to_string(NULL, struct sha256_double, hash);
if (verbose)
return tal_fmt(NULL,
"SIG(%s:%s)\n privkey: %s\n tx_hash: %s\n"
" sig: %s",
pstr, hstr, pstr, hstr, sig_as_hex(sig));
return tal_fmt(NULL, "SIG(%s:%s)", pstr, hstr);
}
int main(int argc, char *argv[])
{
struct secrets local, remote;
struct sha256 localseed, remoteseed;
struct basepoints localbase, remotebase;
struct pubkey funding_localkey, funding_remotekey;
u64 commitnum;
struct amount_sat funding_amount;
struct channel_id cid;
struct bitcoin_outpoint funding;
u32 feerate_per_kw;
struct pubkey local_per_commit_point, remote_per_commit_point;
struct bitcoin_signature local_sig, remote_sig;
struct channel_config localconfig, remoteconfig;
struct amount_msat local_msat, remote_msat;
int argnum;
struct bitcoin_tx **local_txs, **remote_txs;
enum side fee_payer;
u8 **witness;
const u8 *funding_wscript;
struct channel *channel;
struct existing_htlc **htlcs = tal_arr(NULL, struct existing_htlc *, 0);
const struct htlc **htlcmap;
struct privkey local_htlc_privkey, remote_htlc_privkey;
struct pubkey local_htlc_pubkey, remote_htlc_pubkey;
bool option_static_remotekey = false, option_anchor_outputs = false;
const struct channel_type *channel_type;
struct sha256_double hash;
u32 blockheight = 0;
int local_anchor_outnum;
setup_locale();
chainparams = chainparams_for_network("bitcoin");
secp256k1_ctx = secp256k1_context_create(SECP256K1_CONTEXT_VERIFY |
SECP256K1_CONTEXT_SIGN);
opt_register_noarg("--help|-h", opt_usage_and_exit,
"<commitnum> <funding-txid> <funding-txout> <funding-amount> <feerate-per-kw> <local-msat> <fee-payer> <localconfig> <remoteconfig> <localsecrets> <remotesecrets> [<htlc>...]\n"
"Where <config> are:\n"
" <to-self-delay>\n"
" <dustlimit>\n"
" <reserve-sat>\n"
"Where <secrets> are:\n"
" <funding-privkey>\n"
" <shachain-seed>\n"
" <revocation-base-secret>\n"
" <payment-base-secret>\n"
" <delayed-payment-base-secret>\n"
" <htlc-base-secret>\n"
"Where <htlc>s are:\n"
" <offer-side>\n"
" <payment-preimage>\n"
" <amount-msat>\n"
" <cltv-expiry>\n",
"Show this message");
opt_register_noarg("-v|--verbose", opt_set_bool, &verbose,
"Increase verbosity");
opt_register_noarg("--option-static-remotekey", opt_set_bool,
&option_static_remotekey,
"Use option_static_remotekey generation rules");
opt_register_noarg("--option-anchor-outputs", opt_set_bool,
&option_anchor_outputs,
"Use option_anchor_outputs generation rules");
opt_register_version();
opt_parse(&argc, argv, opt_log_stderr_exit);
if (argc < 1 + 7 + 3*2 + 6*2)
opt_usage_exit_fail("Too few arguments");
argnum = 1;
commitnum = atol(argv[argnum++]);
if (!bitcoin_txid_from_hex(argv[argnum],
strlen(argv[argnum]), &funding.txid))
errx(1, "Bad funding-txid");
argnum++;
funding.n = atoi(argv[argnum++]);
if (!parse_amount_sat(&funding_amount, argv[argnum], strlen(argv[argnum])))
errx(1, "Bad funding-amount");
argnum++;
feerate_per_kw = atoi(argv[argnum++]);
if (!parse_amount_msat(&local_msat,
argv[argnum], strlen(argv[argnum])))
errx(1, "Bad local-msat");
argnum++;
if (streq(argv[argnum], "local"))
fee_payer = LOCAL;
else if (streq(argv[argnum], "remote"))
fee_payer = REMOTE;
else
errx(1, "fee-payer must be 'local' or 'remote'");
argnum++;
argnum += parse_config(argv + argnum, &localconfig, "local");
argnum += parse_config(argv + argnum, &remoteconfig, "remote");
argnum += parse_secrets(argv + argnum, &local, &localseed, "local");
argnum += parse_secrets(argv + argnum, &remote, &remoteseed, "remote");
if (!amount_sat_sub_msat(&remote_msat, funding_amount, local_msat))
errx(1, "Can't afford local_msat");
if (option_anchor_outputs) {
printf("Using option-anchor-outputs\n");
option_static_remotekey = true;
}
if (option_static_remotekey)
printf("Using option-static-remotekey\n");
printf("## HTLCs\n");
while (argnum < argc) {
if (argnum + 4 > argc)
opt_usage_exit_fail("Too few arguments for htlc");
argnum += parse_htlc(argv + argnum, &htlcs);
}
printf("\n");
if (!pubkey_from_privkey(&local.funding_privkey, &funding_localkey)
|| !pubkey_from_secret(&local.revocation_basepoint_secret,
&localbase.revocation)
|| !pubkey_from_secret(&local.payment_basepoint_secret,
&localbase.payment)
|| !pubkey_from_secret(&local.delayed_payment_basepoint_secret,
&localbase.delayed_payment)
|| !pubkey_from_secret(&local.htlc_basepoint_secret,
&localbase.htlc))
errx(1, "Bad deriving local basepoints");
if (!pubkey_from_privkey(&remote.funding_privkey, &funding_remotekey)
|| !pubkey_from_secret(&remote.revocation_basepoint_secret,
&remotebase.revocation)
|| !pubkey_from_secret(&remote.payment_basepoint_secret,
&remotebase.payment)
|| !pubkey_from_secret(&remote.delayed_payment_basepoint_secret,
&remotebase.delayed_payment)
|| !pubkey_from_secret(&remote.htlc_basepoint_secret,
&remotebase.htlc))
errx(1, "Bad deriving remote basepoints");
print_basepoints("local",
&local, &localseed,
&localbase, &funding_localkey, commitnum);
print_basepoints("remote",
&remote, &remoteseed,
&remotebase, &funding_remotekey, commitnum);
/* FIXME: option for v2? */
derive_channel_id(&cid, &funding);
if (option_anchor_outputs)
channel_type = channel_type_anchor_outputs(NULL);
else if (option_static_remotekey)
channel_type = channel_type_static_remotekey(NULL);
else
channel_type = channel_type_none(NULL);
channel = new_full_channel(NULL,
&cid,
&funding, 1,
take(new_height_states(NULL, fee_payer,
&blockheight)),
0, /* Defaults to no lease */
funding_amount,
local_msat,
take(new_fee_states(NULL, fee_payer,
&feerate_per_kw)),
&localconfig, &remoteconfig,
&localbase, &remotebase,
&funding_localkey, &funding_remotekey,
channel_type,
false,
fee_payer);
if (!channel_force_htlcs(channel,
cast_const2(const struct existing_htlc **, htlcs)))
errx(1, "Cannot add HTLCs");
/* Create the local commitment_tx */
if (!per_commit_point(&localseed, &local_per_commit_point, commitnum))
errx(1, "Bad deriving local per-commitment-point");
local_txs = channel_txs(NULL, &channel->funding, channel->funding_sats,
&htlcmap, NULL, &funding_wscript, channel,
&local_per_commit_point, commitnum,
LOCAL, 0, 0, &local_anchor_outnum);
printf("## local_commitment\n"
"# input amount %s, funding_wscript %s, pubkey %s\n",
type_to_string(NULL, struct amount_sat, &funding_amount),
tal_hex(NULL, funding_wscript),
type_to_string(NULL, struct pubkey, &funding_localkey));
printf("# unsigned local commitment tx: %s\n",
tal_hex(NULL, linearize_tx(NULL, local_txs[0])));
/* Get the hash out, for printing */
bitcoin_tx_hash_for_sig(local_txs[0], 0, funding_wscript,
SIGHASH_ALL, &hash);
sign_tx_input(local_txs[0], 0, NULL, funding_wscript,
&local.funding_privkey,
&funding_localkey,
SIGHASH_ALL,
&local_sig);
printf("localsig_on_local: %s\n", sig_notation(&hash,
&local.funding_privkey,
&local_sig));
sign_tx_input(local_txs[0], 0, NULL, funding_wscript,
&remote.funding_privkey,
&funding_remotekey,
SIGHASH_ALL,
&remote_sig);
printf("remotesig_on_local: %s\n", sig_notation(&hash,
&remote.funding_privkey,
&remote_sig));
witness =
bitcoin_witness_2of2(NULL, &local_sig, &remote_sig,
&funding_localkey, &funding_remotekey);
bitcoin_tx_input_set_witness(local_txs[0], 0, take(witness));
printf("# signed local commitment: %s\n",
tal_hex(NULL, linearize_tx(NULL, local_txs[0])));
if (!derive_simple_privkey(&local.htlc_basepoint_secret,
&localbase.htlc,
&local_per_commit_point,
&local_htlc_privkey))
errx(1, "Failure deriving local htlc privkey");
if (!derive_simple_key(&localbase.htlc,
&local_per_commit_point,
&local_htlc_pubkey))
errx(1, "Failure deriving local htlc pubkey");
if (!derive_simple_privkey(&remote.htlc_basepoint_secret,
&remotebase.htlc,
&local_per_commit_point,
&remote_htlc_privkey))
errx(1, "Failure deriving remote htlc privkey");
if (!derive_simple_key(&remotebase.htlc,
&local_per_commit_point,
&remote_htlc_pubkey))
errx(1, "Failure deriving remote htlc pubkey");
for (size_t i = 0; i < tal_count(htlcmap); i++) {
struct bitcoin_signature local_htlc_sig, remote_htlc_sig;
u8 *wscript;
if (!htlcmap[i])
continue;
printf("# Output %zu: %s HTLC %"PRIu64"\n",
i, side_to_str(htlc_owner(htlcmap[i])), htlcmap[i]->id);
printf("# unsigned htlc tx for output %zu: %s\n",
i, tal_hex(NULL, linearize_tx(NULL, local_txs[1+i])));
wscript = bitcoin_tx_output_get_witscript(NULL, local_txs[1+i], 1+i);
printf("# wscript: %s\n", tal_hex(NULL, wscript));
bitcoin_tx_hash_for_sig(local_txs[1+i], 0, wscript,
SIGHASH_ALL, &hash);
sign_tx_input(local_txs[1+i], 0, NULL, wscript,
&local_htlc_privkey, &local_htlc_pubkey,
SIGHASH_ALL, &local_htlc_sig);
sign_tx_input(local_txs[1+i], 0, NULL, wscript,
&remote_htlc_privkey, &remote_htlc_pubkey,
SIGHASH_ALL, &remote_htlc_sig);
printf("localsig_on_local output %zu: %s\n",
i, sig_notation(&hash, &local_htlc_privkey, &local_htlc_sig));
printf("remotesig_on_local output %zu: %s\n",
i, sig_notation(&hash, &remote_htlc_privkey, &remote_htlc_sig));
if (htlc_owner(htlcmap[i]) == LOCAL)
witness = bitcoin_witness_htlc_timeout_tx(NULL,
&local_htlc_sig,
&remote_htlc_sig,
wscript);
else
witness = bitcoin_witness_htlc_success_tx(NULL,
&local_htlc_sig,
&remote_htlc_sig,
preimage_of(&htlcmap[i]->rhash, cast_const2(const struct existing_htlc **, htlcs)),
wscript);
bitcoin_tx_input_set_witness(local_txs[1+i], 0, witness);
printf("htlc tx for output %zu: %s\n",
i, tal_hex(NULL, linearize_tx(NULL, local_txs[1+i])));
}
printf("\n");
/* Create the remote commitment tx */
if (!per_commit_point(&remoteseed, &remote_per_commit_point, commitnum))
errx(1, "Bad deriving remote per-commitment-point");
remote_txs = channel_txs(NULL, &channel->funding, channel->funding_sats,
&htlcmap, NULL, &funding_wscript, channel,
&remote_per_commit_point, commitnum,
REMOTE, 0, 0, &local_anchor_outnum);
printf("## remote_commitment\n"
"# input amount %s, funding_wscript %s, key %s\n",
type_to_string(NULL, struct amount_sat, &funding_amount),
tal_hex(NULL, funding_wscript),
type_to_string(NULL, struct pubkey, &funding_remotekey));
printf("# unsigned remote commitment tx: %s\n",
tal_hex(NULL, linearize_tx(NULL, remote_txs[0])));
bitcoin_tx_hash_for_sig(remote_txs[0], 0, funding_wscript,
SIGHASH_ALL, &hash);
sign_tx_input(remote_txs[0], 0, NULL, funding_wscript,
&local.funding_privkey,
&funding_localkey,
SIGHASH_ALL,
&local_sig);
printf("localsig_on_remote: %s\n", sig_notation(&hash,
&local.funding_privkey,
&local_sig));
sign_tx_input(remote_txs[0], 0, NULL, funding_wscript,
&remote.funding_privkey,
&funding_remotekey,
SIGHASH_ALL,
&remote_sig);
printf("remotesig_on_remote: %s\n", sig_notation(&hash,
&remote.funding_privkey,
&remote_sig));
witness =
bitcoin_witness_2of2(NULL, &local_sig, &remote_sig,
&funding_localkey, &funding_remotekey);
bitcoin_tx_input_set_witness(remote_txs[0], 0, witness);
printf("# signed remote commitment: %s\n",
tal_hex(NULL, linearize_tx(NULL, remote_txs[0])));
if (!derive_simple_privkey(&local.htlc_basepoint_secret,
&localbase.htlc,
&remote_per_commit_point,
&local_htlc_privkey))
errx(1, "Failure deriving local htlc privkey");
if (!derive_simple_key(&localbase.htlc,
&remote_per_commit_point,
&local_htlc_pubkey))
errx(1, "Failure deriving local htlc pubkey");
if (!derive_simple_privkey(&remote.htlc_basepoint_secret,
&remotebase.htlc,
&remote_per_commit_point,
&remote_htlc_privkey))
errx(1, "Failure deriving remote htlc privkey");
if (!derive_simple_key(&remotebase.htlc,
&remote_per_commit_point,
&remote_htlc_pubkey))
errx(1, "Failure deriving remote htlc pubkey");
for (size_t i = 0; i < tal_count(htlcmap); i++) {
struct bitcoin_signature local_htlc_sig, remote_htlc_sig;
u8 *wscript;
if (!htlcmap[i])
continue;
printf("# Output %zu: %s HTLC %"PRIu64"\n",
i, side_to_str(htlc_owner(htlcmap[i])), htlcmap[i]->id);
printf("# unsigned htlc tx for output %zu: %s\n",
i, tal_hex(NULL, linearize_tx(NULL, remote_txs[1+i])));
wscript = bitcoin_tx_output_get_witscript(NULL, remote_txs[1+i], 1+i);
printf("# wscript: %s\n", tal_hex(NULL, wscript));
bitcoin_tx_hash_for_sig(remote_txs[1+i], 0, wscript,
SIGHASH_ALL, &hash);
sign_tx_input(remote_txs[1+i], 0, NULL, wscript,
&local_htlc_privkey, &local_htlc_pubkey,
SIGHASH_ALL, &local_htlc_sig);
sign_tx_input(remote_txs[1+i], 0, NULL, wscript,
&remote_htlc_privkey, &remote_htlc_pubkey,
SIGHASH_ALL, &remote_htlc_sig);
printf("localsig_on_remote output %zu: %s\n",
i, sig_notation(&hash, &local_htlc_privkey, &local_htlc_sig));
printf("remotesig_on_remote output %zu: %s\n",
i, sig_notation(&hash, &remote_htlc_privkey, &remote_htlc_sig));
if (htlc_owner(htlcmap[i]) == REMOTE)
witness = bitcoin_witness_htlc_timeout_tx(NULL,
&remote_htlc_sig,
&local_htlc_sig,
wscript);
else
witness = bitcoin_witness_htlc_success_tx(NULL,
&remote_htlc_sig,
&local_htlc_sig,
preimage_of(&htlcmap[i]->rhash, cast_const2(const struct existing_htlc **, htlcs)),
wscript);
bitcoin_tx_input_set_witness(remote_txs[1+i], 0, witness);
printf("htlc tx for output %zu: %s\n",
i, tal_hex(NULL, linearize_tx(NULL, remote_txs[1+i])));
}
printf("\n");
return 0;
}
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