int main(int argc, char *argv[])
{
const tal_t *ctx = tal_arr(NULL, char, 0);
struct bitcoin_tx *tx;
struct sha256_double txid;
char str[hex_str_size(sizeof(txid))];
err_set_progname(argv[0]);
/* FIXME: Take update.pbs to adjust channel */
opt_register_noarg("--help|-h", opt_usage_and_exit,
"<tx>\n"
"Print txid of the transaction in the file",
"Print this message.");
opt_register_version();
opt_parse(&argc, argv, opt_log_stderr_exit);
if (argc != 2)
opt_usage_exit_fail("Expected 1 argument");
tx = bitcoin_tx_from_file(ctx, argv[1]);
bitcoin_txid(tx, &txid);
if (!bitcoin_txid_to_hex(&txid, str, sizeof(str)))
abort();
/* Print it out. */
if (!write_all(STDOUT_FILENO, str, strlen(str)))
err(1, "Writing out txid");
tal_free(ctx);
return 0;
}
static void add_htlcs(struct bitcoin_tx ***txs,
const u8 ***wscripts,
const struct htlc **htlcmap,
const struct channel *channel,
const struct keyset *keyset,
enum side side)
{
size_t i;
struct bitcoin_txid txid;
u32 feerate_per_kw = channel->view[side].feerate_per_kw;
/* Get txid of commitment transaction */
bitcoin_txid((*txs)[0], &txid);
for (i = 0; i < tal_count(htlcmap); i++) {
const struct htlc *htlc = htlcmap[i];
struct bitcoin_tx *tx;
u8 *wscript;
if (!htlc)
continue;
if (htlc_owner(htlc) == side) {
tx = htlc_timeout_tx(*txs, &txid, i,
htlc->amount,
htlc->expiry.locktime,
channel->config[!side].to_self_delay,
feerate_per_kw,
keyset);
wscript = bitcoin_wscript_htlc_offer(*wscripts,
&keyset->self_htlc_key,
&keyset->other_htlc_key,
&htlc->rhash,
&keyset->self_revocation_key);
} else {
tx = htlc_success_tx(*txs, &txid, i,
htlc->amount,
channel->config[!side].to_self_delay,
feerate_per_kw,
keyset);
wscript = bitcoin_wscript_htlc_receive(*wscripts,
&htlc->expiry,
&keyset->self_htlc_key,
&keyset->other_htlc_key,
&htlc->rhash,
&keyset->self_revocation_key);
}
/* Append to array. */
assert(tal_count(*txs) == tal_count(*wscripts));
tal_arr_expand(wscripts, wscript);
tal_arr_expand(txs, tx);
}
}
struct txwatch *watch_tx_(const tal_t *ctx,
struct peer *peer,
const struct bitcoin_tx *tx,
void (*cb)(struct peer *peer, unsigned int depth,
const struct sha256_double *txid,
void *arg),
void *cb_arg)
{
struct sha256_double txid;
bitcoin_txid(tx, &txid);
return watch_txid(ctx, peer, &txid, cb, cb_arg);
}
int main(int argc, char *argv[])
{
const tal_t *ctx = tal_arr(NULL, char, 0);
OpenChannel *o1, *o2;
OpenAnchorScriptsigs *ss1, *ss2;
struct bitcoin_tx *anchor;
struct sha256_double txid;
u8 *tx_arr;
size_t *inmap, *outmap;
char *tx_hex;
err_set_progname(argv[0]);
opt_register_noarg("--help|-h", opt_usage_and_exit,
"<open-channel-file1> <open-channel-file2> <anchor-sig2-1> <anchor-sigs2>\n"
"Output the anchor transaction by merging the scriptsigs",
"Print this message.");
opt_parse(&argc, argv, opt_log_stderr_exit);
if (argc != 5)
opt_usage_exit_fail("Expected 6 arguments");
o1 = pkt_from_file(argv[1], PKT__PKT_OPEN)->open;
o2 = pkt_from_file(argv[2], PKT__PKT_OPEN)->open;
ss1 = pkt_from_file(argv[3], PKT__PKT_OPEN_ANCHOR_SCRIPTSIGS)
->open_anchor_scriptsigs;
ss2 = pkt_from_file(argv[4], PKT__PKT_OPEN_ANCHOR_SCRIPTSIGS)
->open_anchor_scriptsigs;
anchor = anchor_tx_create(ctx, o1, o2, &inmap, &outmap);
if (!anchor)
errx(1, "Failed transaction merge");
if (!anchor_add_scriptsigs(anchor, ss1, ss2, inmap))
errx(1, "Wrong number of scriptsigs");
bitcoin_txid(anchor, &txid);
/* Print it out in hex. */
tx_arr = linearize_tx(ctx, anchor);
tx_hex = tal_arr(tx_arr, char, hex_str_size(tal_count(tx_arr)));
hex_encode(tx_arr, tal_count(tx_arr), tx_hex, tal_count(tx_hex));
if (!write_all(STDOUT_FILENO, tx_hex, strlen(tx_hex)))
err(1, "Writing out anchor transaction");
tal_free(ctx);
return 0;
}
void txowatch_fire(struct lightningd_state *dstate,
const struct txowatch *txow,
const struct bitcoin_tx *tx,
size_t input_num)
{
struct sha256_double txid;
bitcoin_txid(tx, &txid);
log_debug(txow->peer->log,
"Got UTXO spend for %02x%02x%02x:%u: %02x%02x%02x%02x...\n",
txow->out.txid.sha.u.u8[0],
txow->out.txid.sha.u.u8[1],
txow->out.txid.sha.u.u8[2],
txow->out.index,
txid.sha.u.u8[0],
txid.sha.u.u8[1],
txid.sha.u.u8[2],
txid.sha.u.u8[3]);
txow->cb(txow->peer, tx, input_num, txow->cbdata);
}
int main(int argc, char *argv[])
{
const tal_t *ctx = tal_arr(NULL, char, 0);
struct sha256 seed, revocation_hash, their_rhash;
OpenChannel *o1, *o2;
Update *update;
struct bitcoin_tx *anchor, *commit;
struct sha256_double anchor_txid;
struct pkt *pkt;
struct bitcoin_signature sig;
EC_KEY *privkey;
bool testnet;
struct pubkey pubkey1, pubkey2;
u8 *redeemscript;
int64_t delta;
size_t i, p2sh_out;
err_set_progname(argv[0]);
opt_register_noarg("--help|-h", opt_usage_and_exit,
"<seed> <anchor-tx> <open-channel-file1> <open-channel-file2> <commit-privkey> <update-protobuf> [previous-updates]\n"
"Accept a new update message",
"Print this message.");
opt_parse(&argc, argv, opt_log_stderr_exit);
if (argc < 6)
opt_usage_exit_fail("Expected 5+ arguments");
if (!hex_decode(argv[1], strlen(argv[1]), &seed, sizeof(seed)))
errx(1, "Invalid seed '%s' - need 256 hex bits", argv[1]);
anchor = bitcoin_tx_from_file(ctx, argv[2]);
bitcoin_txid(anchor, &anchor_txid);
o1 = pkt_from_file(argv[3], PKT__PKT_OPEN)->open;
o2 = pkt_from_file(argv[4], PKT__PKT_OPEN)->open;
privkey = key_from_base58(argv[5], strlen(argv[5]), &testnet, &pubkey1);
if (!privkey)
errx(1, "Invalid private key '%s'", argv[5]);
if (!testnet)
errx(1, "Private key '%s' not on testnet!", argv[5]);
update = pkt_from_file(argv[6], PKT__PKT_UPDATE)->update;
/* Figure out cumulative delta since anchor. */
delta = update->delta;
for (i = 7; i < argc; i++) {
Update *u = pkt_from_file(argv[i], PKT__PKT_UPDATE)->update;
delta += u->delta;
}
/* Get next revocation hash. */
shachain_from_seed(&seed, argc - 6, &revocation_hash);
sha256(&revocation_hash,
revocation_hash.u.u8, sizeof(revocation_hash.u.u8));
/* Get pubkeys */
if (!proto_to_pubkey(o1->anchor->pubkey, &pubkey2))
errx(1, "Invalid o1 commit pubkey");
if (pubkey_len(&pubkey1) != pubkey_len(&pubkey2)
|| memcmp(pubkey1.key, pubkey2.key, pubkey_len(&pubkey2)) != 0)
errx(1, "o1 pubkey != this privkey");
if (!proto_to_pubkey(o2->anchor->pubkey, &pubkey2))
errx(1, "Invalid o2 final pubkey");
/* This is what the anchor pays to; figure out whick output. */
redeemscript = bitcoin_redeem_2of2(ctx, &pubkey1, &pubkey2);
p2sh_out = find_p2sh_out(anchor, redeemscript);
/* Now create THEIR new commitment tx to spend 2/2 output of anchor. */
proto_to_sha256(update->revocation_hash, &their_rhash);
commit = create_commit_tx(ctx, o2, o1, &their_rhash, delta,
&anchor_txid, p2sh_out);
/* If contributions don't exceed fees, this fails. */
if (!commit)
errx(1, "Delta too large");
/* Sign it for them. */
sign_tx_input(ctx, commit, 0, redeemscript, tal_count(redeemscript),
privkey, &pubkey1, &sig.sig);
pkt = update_accept_pkt(ctx, &sig.sig, &revocation_hash);
if (!write_all(STDOUT_FILENO, pkt, pkt_totlen(pkt)))
err(1, "Writing out packet");
tal_free(ctx);
return 0;
}
int main(int argc, char *argv[])
{
const tal_t *ctx = tal_arr(NULL, char, 0);
OpenChannel *o1, *o2;
struct bitcoin_tx *anchor, *close_tx;
struct sha256_double anchor_txid;
struct bitcoin_signature sig1, sig2;
struct pubkey pubkey1, pubkey2;
u8 *redeemscript, *tx_arr;
char *tx_hex;
CloseChannel *close;
CloseChannelComplete *closecomplete;
size_t i;
int64_t delta;
err_set_progname(argv[0]);
/* FIXME: Take update.pbs to adjust channel */
opt_register_noarg("--help|-h", opt_usage_and_exit,
"<anchor-tx> <open-channel-file1> <open-channel-file2> <close-protobuf> <close-complete-protobuf> [update-protobuf]...\n"
"Create the close transaction from the signatures",
"Print this message.");
opt_parse(&argc, argv, opt_log_stderr_exit);
if (argc < 6)
opt_usage_exit_fail("Expected 5+ arguments");
anchor = bitcoin_tx_from_file(ctx, argv[1]);
o1 = pkt_from_file(argv[2], PKT__PKT_OPEN)->open;
o2 = pkt_from_file(argv[3], PKT__PKT_OPEN)->open;
close = pkt_from_file(argv[4], PKT__PKT_CLOSE)->close;
closecomplete = pkt_from_file(argv[5], PKT__PKT_CLOSE_COMPLETE)->close_complete;
bitcoin_txid(anchor, &anchor_txid);
/* Pubkeys well-formed? */
if (!proto_to_pubkey(o1->anchor->pubkey, &pubkey1))
errx(1, "Invalid anchor-1 key");
if (!proto_to_pubkey(o2->anchor->pubkey, &pubkey2))
errx(1, "Invalid anchor-2 key");
/* Get delta by accumulting all the updates. */
delta = 0;
for (i = 6; i < argc; i++) {
Update *u = pkt_from_file(argv[i], PKT__PKT_UPDATE)->update;
delta += u->delta;
}
/* This is what the anchor pays to; figure out which output. */
redeemscript = bitcoin_redeem_2of2(ctx, &pubkey1, &pubkey2);
/* Now create the close tx to spend 2/2 output of anchor. */
close_tx = create_close_tx(ctx, o1, o2, delta, &anchor_txid,
find_p2sh_out(anchor, redeemscript));
/* Signatures well-formed? */
sig1.stype = sig2.stype = SIGHASH_ALL;
if (!proto_to_signature(close->sig, &sig1.sig))
errx(1, "Invalid close-packet");
if (!proto_to_signature(closecomplete->sig, &sig2.sig))
errx(1, "Invalid closecomplete-packet");
/* Combined signatures must validate correctly. */
if (!check_2of2_sig(close_tx, 0, redeemscript, tal_count(redeemscript),
&pubkey1, &pubkey2, &sig1, &sig2))
errx(1, "Signature failed");
/* Create p2sh input for close_tx */
close_tx->input[0].script = scriptsig_p2sh_2of2(close_tx, &sig1, &sig2,
&pubkey1, &pubkey2);
close_tx->input[0].script_length = tal_count(close_tx->input[0].script);
/* Print it out in hex. */
tx_arr = linearize_tx(ctx, close_tx);
tx_hex = tal_arr(tx_arr, char, hex_str_size(tal_count(tx_arr)));
hex_encode(tx_arr, tal_count(tx_arr), tx_hex, tal_count(tx_hex));
if (!write_all(STDOUT_FILENO, tx_hex, strlen(tx_hex)))
err(1, "Writing out transaction");
tal_free(ctx);
return 0;
}
int main(int argc, char *argv[])
{
const tal_t *ctx = tal_arr(NULL, char, 0);
OpenChannel *o1, *o2;
OpenAnchor *a;
struct bitcoin_tx *commit, *tx;
struct bitcoin_signature sig;
struct privkey privkey;
bool testnet;
struct pubkey pubkey1, pubkey2, outpubkey;
u8 *redeemscript;
struct sha256 rhash;
size_t p2sh_out;
u64 fee = 10000;
u32 locktime;
err_set_progname(argv[0]);
/* FIXME: If we've updated channel since, we need the final
* revocation hash we sent (either update_accept or update_complete) */
opt_register_noarg("--help|-h", opt_usage_and_exit,
"<commitment-tx> <open-channel-file1> <open-channel-file2> <open-anchor-file> <my-privoutkey> <someaddress> [previous-updates]\n"
"Create the transaction to spend our commit transaction",
"Print this message.");
opt_register_arg("--fee=<bits>",
opt_set_bits, opt_show_bits, &fee,
"100's of satoshi to pay in transaction fee");
opt_register_version();
opt_parse(&argc, argv, opt_log_stderr_exit);
if (argc < 6)
opt_usage_exit_fail("Expected 5+ arguments");
commit = bitcoin_tx_from_file(ctx, argv[1]);
o1 = pkt_from_file(argv[2], PKT__PKT_OPEN)->open;
o2 = pkt_from_file(argv[3], PKT__PKT_OPEN)->open;
a = pkt_from_file(argv[4], PKT__PKT_OPEN_ANCHOR)->open_anchor;
if (!proto_to_rel_locktime(o2->delay, &locktime))
errx(1, "Invalid locktime in o2");
/* We need our private key to spend commit output. */
if (!key_from_base58(argv[5], strlen(argv[5]), &testnet, &privkey, &pubkey1))
errx(1, "Invalid private key '%s'", argv[5]);
if (!testnet)
errx(1, "Private key '%s' not on testnet!", argv[5]);
if (!pubkey_from_hexstr(argv[6], &outpubkey))
errx(1, "Invalid bitcoin pubkey '%s'", argv[6]);
/* Get pubkeys */
if (!proto_to_pubkey(o1->final_key, &pubkey2))
errx(1, "Invalid o1 final pubkey");
if (!pubkey_eq(&pubkey1, &pubkey2))
errx(1, "o1 pubkey != this privkey");
if (!proto_to_pubkey(o2->final_key, &pubkey2))
errx(1, "Invalid o2 final pubkey");
/* We use this simply to get final revocation hash. */
gather_updates(ctx, o1, o2, a, commit_fee(o1, o2), argv + 7,
NULL, &rhash, NULL, NULL);
/* Create redeem script */
redeemscript = bitcoin_redeem_secret_or_delay(ctx, &pubkey1, locktime,
&pubkey2, &rhash);
/* Now, create transaction to spend it. */
tx = bitcoin_tx(ctx, 1, 1);
bitcoin_txid(commit, &tx->input[0].txid);
p2sh_out = find_p2sh_out(commit, redeemscript);
tx->input[0].index = p2sh_out;
tx->input[0].input_amount = commit->output[p2sh_out].amount;
tx->fee = fee;
tx->input[0].sequence_number = bitcoin_nsequence(locktime);
if (commit->output[p2sh_out].amount <= fee)
errx(1, "Amount of %llu won't exceed fee",
(unsigned long long)commit->output[p2sh_out].amount);
tx->output[0].amount = commit->output[p2sh_out].amount - fee;
tx->output[0].script = scriptpubkey_p2sh(tx,
bitcoin_redeem_single(tx, &outpubkey));
tx->output[0].script_length = tal_count(tx->output[0].script);
/* Now get signature, to set up input script. */
if (!sign_tx_input(tx, tx, 0, redeemscript, tal_count(redeemscript),
&privkey, &pubkey1, &sig.sig))
errx(1, "Could not sign tx");
sig.stype = SIGHASH_ALL;
tx->input[0].script = scriptsig_p2sh_secret(tx, NULL, 0, &sig,
redeemscript,
tal_count(redeemscript));
tx->input[0].script_length = tal_count(tx->input[0].script);
/* Print it out in hex. */
if (!bitcoin_tx_write(STDOUT_FILENO, tx))
err(1, "Writing out transaction");
tal_free(ctx);
return 0;
}
