mirror of
https://github.com/aljazceru/lightning.git
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Escape transaction support, test tools to create/check them.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell
124
test-cli/create-escape-tx.c
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124
test-cli/create-escape-tx.c
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@@ -0,0 +1,124 @@
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#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/structeq/structeq.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 "anchor.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 "permute_tx.h"
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#include "bitcoin/signature.h"
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#include "escape_tx.h"
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#include "bitcoin/pubkey.h"
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#include "bitcoin/privkey.h"
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#include "protobuf_convert.h"
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#include <unistd.h>
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int main(int argc, char *argv[])
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{
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const tal_t *ctx = tal_arr(NULL, char, 0);
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OpenChannel *o1, *o2;
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OpenAnchor *oa1;
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OpenEscapeSigs *oe2;
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struct bitcoin_tx *tx;
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struct sha256 escape_secret, escape_hash1, escape_hash2, expect;
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struct sha256_double anchor_txid1;
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struct bitcoin_signature our_sig, their_sig;
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struct privkey privkey;
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u8 *redeemscript;
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bool testnet;
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bool fast_escape = false;
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struct pubkey pubkey1, pubkey2, final2;
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err_set_progname(argv[0]);
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opt_register_noarg("--help|-h", opt_usage_and_exit,
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"<open-channel-file1> <open-channel-file2> <open-anchor-file1> <escape-sigs-file2> <escape-privkey> <escape-secret>\n"
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"Create the escape transaction",
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"Print this message.");
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opt_register_noarg("--fast", opt_set_bool, &fast_escape,
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"Generate fast escape transaction"
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" (instead of normal escape)");
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opt_parse(&argc, argv, opt_log_stderr_exit);
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if (argc != 7)
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opt_usage_exit_fail("Expected 6 arguments");
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o1 = pkt_from_file(argv[1], PKT__PKT_OPEN)->open;
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proto_to_sha256(o1->escape_hash, &escape_hash1);
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o2 = pkt_from_file(argv[2], PKT__PKT_OPEN)->open;
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proto_to_sha256(o2->escape_hash, &escape_hash2);
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if (!proto_to_pubkey(o2->commitkey, &pubkey2))
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errx(1, "Invalid o2 commit pubkey");
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if (!proto_to_pubkey(o2->final, &final2))
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errx(1, "Invalid o2 final pubkey");
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oa1 = pkt_from_file(argv[3], PKT__PKT_OPEN_ANCHOR)->open_anchor;
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oe2 = pkt_from_file(argv[4], PKT__PKT_OPEN_ESCAPE_SIGS)->open_escape_sigs;
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if (!key_from_base58(argv[5], strlen(argv[5]), &testnet, &privkey, &pubkey1))
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errx(1, "Invalid private key '%s'", argv[5]);
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if (!testnet)
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errx(1, "Private key '%s' not on testnet!", argv[5]);
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if (!hex_decode(argv[6], strlen(argv[6]), &escape_secret,
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sizeof(escape_secret)))
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errx(1, "Invalid escape secret '%s' - need 256 hex bits", argv[6]);
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/* Make sure secret is correct. */
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sha256(&expect, &escape_secret, sizeof(escape_secret));
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if (!structeq(&expect, &escape_hash1))
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errx(1, "Escape secret not what we promised");
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proto_to_sha256(oa1->anchor_txid, &anchor_txid1.sha);
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their_sig.stype = our_sig.stype = SIGHASH_ALL;
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if (fast_escape) {
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if (!proto_to_signature(oe2->fast_escape, &their_sig.sig))
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errx(1, "Bad fast escape signature in oe2");
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tx = create_fast_escape_tx(ctx, o1, o2,
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&anchor_txid1, oa1->index,
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o1->total_input, o1->escape_fee);
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} else {
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if (!proto_to_signature(oe2->escape, &their_sig.sig))
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errx(1, "Bad escape signature in oe2");
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tx = create_escape_tx(ctx, o1, o2,
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&anchor_txid1, oa1->index,
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o1->total_input, o1->escape_fee);
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}
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if (!tx)
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errx(1, "Could not create transaction");
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/* Sign input for the anchor. */
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redeemscript = bitcoin_redeem_anchor(ctx, &pubkey1, &pubkey2,
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&final2, &escape_hash1);
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if (!check_tx_sig(tx, 0, redeemscript, tal_count(redeemscript),
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&final2, &their_sig))
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errx(1, "Invalid %sescape signature in oe2",
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fast_escape ? "fast-" : "");
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if (!sign_tx_input(ctx, tx, 0,
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redeemscript, tal_count(redeemscript),
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&privkey, &pubkey1, &our_sig.sig))
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errx(1, "Could not sign transaction");
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/* Now create script. */
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tx->input[0].script
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= scriptsig_p2sh_anchor_escape(ctx, &their_sig, &our_sig,
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&escape_secret,
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redeemscript,
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tal_count(redeemscript));
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tx->input[0].script_length = tal_count(tx->input[0].script);
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/* Print it out in hex. */
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if (!bitcoin_tx_write(STDOUT_FILENO, tx))
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err(1, "Writing out transaction");
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tal_free(ctx);
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return 0;
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}
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106
test-cli/open-escape-sigs.c
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106
test-cli/open-escape-sigs.c
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@@ -0,0 +1,106 @@
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#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 "anchor.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 "permute_tx.h"
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#include "bitcoin/signature.h"
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#include "escape_tx.h"
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#include "bitcoin/pubkey.h"
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#include "bitcoin/privkey.h"
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#include "protobuf_convert.h"
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#include <unistd.h>
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int main(int argc, char *argv[])
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{
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const tal_t *ctx = tal_arr(NULL, char, 0);
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OpenChannel *o1, *o2;
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OpenAnchor *oa2;
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struct bitcoin_tx *escape;
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struct sha256 escape_hash2;
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struct sha256_double anchor_txid2;
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struct pkt *pkt;
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struct signature escape_sig, fast_escape_sig;
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struct privkey privkey;
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u8 *redeemscript;
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bool testnet;
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struct pubkey pubkey1, pubkey2, final1, final2;
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err_set_progname(argv[0]);
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opt_register_noarg("--help|-h", opt_usage_and_exit,
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"<open-channel-file1> <open-channel-file2> <open-anchor-file2> <escape-privkey>\n"
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"Create the signatures needed for the other side's escape transaction",
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"Print this message.");
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opt_parse(&argc, argv, opt_log_stderr_exit);
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if (argc != 5)
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opt_usage_exit_fail("Expected 4 arguments");
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o1 = pkt_from_file(argv[1], PKT__PKT_OPEN)->open;
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if (!proto_to_pubkey(o1->commitkey, &pubkey1))
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errx(1, "Invalid o1 commit pubkey");
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o2 = pkt_from_file(argv[2], PKT__PKT_OPEN)->open;
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proto_to_sha256(o2->escape_hash, &escape_hash2);
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if (!proto_to_pubkey(o2->final, &final2))
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errx(1, "Invalid o2 final pubkey");
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if (!proto_to_pubkey(o2->commitkey, &pubkey2))
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errx(1, "Invalid o2 commit pubkey");
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oa2 = pkt_from_file(argv[3], PKT__PKT_OPEN_ANCHOR)->open_anchor;
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if (!key_from_base58(argv[4], strlen(argv[4]), &testnet, &privkey, &final1))
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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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proto_to_sha256(oa2->anchor_txid, &anchor_txid2.sha);
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/* Now create THEIR escape tx to spend output of their anchor. */
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escape = create_escape_tx(ctx, o2, o1, &anchor_txid2, oa2->index,
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o2->total_input, o2->escape_fee);
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/* If contributions don't exceed fees, this fails. */
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if (!escape)
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errx(1, "Input %llu vs fees %llu",
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(long long)o2->total_input,
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(long long)o2->escape_fee);
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/* Sign input for their anchor. */
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redeemscript = bitcoin_redeem_anchor(ctx, &pubkey2, &pubkey1,
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&final1, &escape_hash2);
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if (!sign_tx_input(ctx, escape, 0,
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redeemscript, tal_count(redeemscript),
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&privkey, &final1, &escape_sig))
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errx(1, "Could not sign their escape tx");
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/* Now create THEIR fast escape tx to spend output of their anchor. */
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escape = create_fast_escape_tx(ctx, o2, o1, &anchor_txid2, oa2->index,
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o2->total_input, o2->escape_fee);
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/* If contributions don't exceed fees, this fails. */
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if (!escape)
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errx(1, "Input %llu vs fees %llu",
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(long long)o2->total_input,
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(long long)o2->escape_fee);
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/* It's spending the same output, so same redeemscript */
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if (!sign_tx_input(ctx, escape, 0,
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redeemscript, tal_count(redeemscript),
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&privkey, &final1, &fast_escape_sig))
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errx(1, "Could not sign their fast escape tx");
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pkt = open_escape_sig_pkt(ctx, &escape_sig, &fast_escape_sig);
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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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@@ -96,6 +96,20 @@ $PREFIX ./create-anchor-tx B-open.pb A-open.pb $B_CHANGEPUBKEY $B_TXIN > B-ancho
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$PREFIX ./open-anchor-id A-anchor.tx $A_CHANGEPUBKEY > A-anchor-id.pb
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$PREFIX ./open-anchor-id B-anchor.tx $B_CHANGEPUBKEY > B-anchor-id.pb
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# Now sign escape transactions for the other side.
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$PREFIX ./open-escape-sigs A-open.pb B-open.pb B-anchor-id.pb $A_FINALKEY > A-escape-sigs.pb
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$PREFIX ./open-escape-sigs B-open.pb A-open.pb A-anchor-id.pb $B_FINALKEY > B-escape-sigs.pb
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# Use their signature to create our escape txs.
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$PREFIX ./create-escape-tx A-open.pb B-open.pb A-anchor-id.pb B-escape-sigs.pb $A_TMPKEY $A_ESCSECRET > A-escape.tx
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$PREFIX ./create-escape-tx --fast A-open.pb B-open.pb A-anchor-id.pb B-escape-sigs.pb $A_TMPKEY $A_ESCSECRET > A-fast-escape.tx
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$PREFIX ./create-escape-tx B-open.pb A-open.pb B-anchor-id.pb A-escape-sigs.pb $B_TMPKEY $B_ESCSECRET > B-escape.tx
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$PREFIX ./create-escape-tx --fast B-open.pb A-open.pb B-anchor-id.pb A-escape-sigs.pb $B_TMPKEY $B_ESCSECRET > B-fast-escape.tx
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# Broadcast anchors
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$CLI sendrawtransaction `cut -d: -f1 A-anchor.tx` > A-anchor.txid
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$CLI sendrawtransaction `cut -d: -f1 B-anchor.tx` > B-anchor.txid
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# Now create commit signature
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$PREFIX ./open-commit-sig A-open.pb B-open.pb A-anchor-id.pb B-anchor-id.pb $A_TMPKEY > A-commit-sig.pb
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$PREFIX ./open-commit-sig B-open.pb A-open.pb B-anchor-id.pb A-anchor-id.pb $B_TMPKEY > B-commit-sig.pb
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@@ -104,10 +118,6 @@ $PREFIX ./open-commit-sig B-open.pb A-open.pb B-anchor-id.pb A-anchor-id.pb $B_T
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$PREFIX ./check-commit-sig A-open.pb B-open.pb A-anchor-id.pb B-anchor-id.pb B-commit-sig.pb $A_TMPKEY > A-commit.tx
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$PREFIX ./check-commit-sig B-open.pb A-open.pb B-anchor-id.pb A-anchor-id.pb A-commit-sig.pb $B_TMPKEY > B-commit.tx
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# Broadcast anchors
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$CLI sendrawtransaction `cut -d: -f1 A-anchor.tx` > A-anchor.txid
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$CLI sendrawtransaction `cut -d: -f1 B-anchor.tx` > B-anchor.txid
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# # Wait for confirms
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# while [ 0$($CLI getrawtransaction $(cat B-anchor.txid) 1 | sed -n 's/.*"confirmations" : \([0-9]*\),/\1/p') -lt $($PREFIX ./get-anchor-depth A-open.pb) ]; do scripts/generate-block.sh; done
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