mirror of
https://github.com/ElementsProject/lightning.git
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113 lines
3.7 KiB
C
113 lines
3.7 KiB
C
#include <ccan/crypto/shachain/shachain.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 <ccan/opt/opt.h>
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#include <ccan/str/hex/hex.h>
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#include <ccan/err/err.h>
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#include <ccan/read_write_all/read_write_all.h>
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#include "lightning.pb-c.h"
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#include "bitcoin/base58.h"
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#include "pkt.h"
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#include "bitcoin/script.h"
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#include "bitcoin/address.h"
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#include "bitcoin/tx.h"
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#include "bitcoin/pubkey.h"
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#include "bitcoin/privkey.h"
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#include "bitcoin/shadouble.h"
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#include "protobuf_convert.h"
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#include <unistd.h>
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#include <time.h>
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#include "opt_bits.h"
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/* Bitcoin nodes are allowed to be 2 hours in the future. */
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#define LOCKTIME_MIN (2 * 60 * 60)
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/* Simple helper to open a channel. */
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int main(int argc, char *argv[])
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{
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struct sha256 seed, revocation_hash, escape_secret, escape_hash;
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struct pkt *pkt;
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const tal_t *ctx = tal_arr(NULL, char, 0);
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u64 commit_tx_fee, escape_fee, total_in;
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unsigned int locktime_seconds, min_confirms;
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bool testnet;
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struct pubkey commitkey, outkey;
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struct privkey commitprivkey, outprivkey;
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err_set_progname(argv[0]);
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/* Default values. */
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min_confirms = 3;
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/* We only need this for involuntary close, so make it larger. */
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commit_tx_fee = 100000;
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/* Don't let them waste too much of our money if they abort. */
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escape_fee = 10000;
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/* This means we have ~1 day before they can steal our money. */
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locktime_seconds = LOCKTIME_MIN + 24 * 60 * 60;
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opt_register_noarg("--help|-h", opt_usage_and_exit,
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"<seed> <amount> <commitprivkey> <outprivkey> <escape-secret>\n"
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"A test program to output openchannel on stdout.",
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"Print this message.");
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opt_register_arg("--min-anchor-confirms",
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opt_set_uintval, opt_show_uintval, &min_confirms,
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"Number of anchor confirmations before channel is active");
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opt_register_arg("--commitment-fee=<bits>",
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opt_set_bits, opt_show_bits, &commit_tx_fee,
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"100's of satoshi to pay for commitment");
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opt_register_arg("--escape-fee=<bits>",
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opt_set_bits, opt_show_bits, &escape_fee,
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"100's of satoshi to pay for escape transactions");
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opt_register_arg("--locktime=<seconds>",
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opt_set_uintval, opt_show_uintval, &locktime_seconds,
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"Seconds to lock out our transaction redemption");
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opt_parse(&argc, argv, opt_log_stderr_exit);
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if (argc != 6)
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opt_usage_exit_fail("Expected 5 arguments");
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if (!hex_decode(argv[1], strlen(argv[1]), &seed, sizeof(seed)))
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errx(1, "Invalid seed '%s' - need 256 hex bits", argv[1]);
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total_in = atol(argv[2]);
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if (!total_in)
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errx(1, "Invalid total: must be > 0");
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/* We don't really need the privkey here, but it's the most
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* convenient way to get the pubkey from bitcoind. */
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if (!key_from_base58(argv[3], strlen(argv[3]), &testnet,
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&commitprivkey, &commitkey))
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errx(1, "Invalid private key '%s'", argv[3]);
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if (!testnet)
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errx(1, "Private key '%s' not on testnet!", argv[3]);
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if (!key_from_base58(argv[4], strlen(argv[4]), &testnet,
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&outprivkey, &outkey))
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errx(1, "Invalid private key '%s'", argv[4]);
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if (!testnet)
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errx(1, "Private key '%s' not on testnet!", argv[4]);
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if (!hex_decode(argv[5], strlen(argv[5]), &escape_secret,
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sizeof(escape_secret)))
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errx(1, "Invalid escape hash '%s' - need 256 hex bits", argv[5]);
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/* Get first revocation hash. */
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shachain_from_seed(&seed, 0, &revocation_hash);
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sha256(&revocation_hash,
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revocation_hash.u.u8, sizeof(revocation_hash.u.u8));
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/* Get hash from escape secret. */
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sha256(&escape_hash, escape_secret.u.u8, sizeof(escape_secret.u.u8));
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pkt = openchannel_pkt(ctx, &revocation_hash, &commitkey, &outkey,
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commit_tx_fee, locktime_seconds, total_in,
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&escape_hash, escape_fee, min_confirms);
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if (!write_all(STDOUT_FILENO, pkt, pkt_totlen(pkt)))
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err(1, "Writing out packet");
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tal_free(ctx);
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return 0;
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}
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