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protocol: switch to single-funder anchor model.

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Most complex change was gather_updates(), which handles all the "what
is the current state of the channel" logic for our dumb test utils.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell
2015-07-29 16:14:28 +09:30
parent 2255cb749d
commit eac3af06f1
35 changed files with 1078 additions and 1608 deletions
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124
test-cli/open-channel.c
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@@ -22,145 +22,61 @@
/* Bitcoin nodes are allowed to be 2 hours in the future. */
#define LOCKTIME_MIN (2 * 60 * 60)
static BitcoinInput *parse_anchor_input(const tal_t *ctx, const char *spec)
{
BitcoinInput *in = tal(ctx, BitcoinInput);
struct sha256_double txid;
const char *slash;
char *end;
long l;
bitcoin_input__init(in);
slash = strchr(spec, '/');
if (!slash)
errx(1, "Expected / in <txid>/<num>/<satoshis>/<hexscript>");
if (!bitcoin_txid_from_hex(spec, slash - spec, &txid))
errx(1, "Expected 256-bit hex txid before /");
in->txid = sha256_to_proto(in, &txid.sha);
in->output = l = strtol(slash + 1, &end, 10);
if (end == slash + 1 || *end != '/' || (int64_t)in->output != (int64_t)l)
errx(1, "Expected <outputnum> after /");
slash = end;
in->amount = l = strtol(slash + 1, &end, 10);
if (end == slash + 1 || *end != '/' || (int64_t)in->amount != (int64_t)l)
errx(1, "Expected <satoshis> after second /");
slash = end;
in->subscript.len = strlen(slash + 1) / 2;
in->subscript.data = tal_arr(in, u8, in->subscript.len);
if (!hex_decode(slash + 1, strlen(slash + 1),
in->subscript.data, in->subscript.len))
errx(1, "Expected hex string after third /");
return in;
}
/* Simple helper to open a channel. */
int main(int argc, char *argv[])
{
struct sha256 seed, revocation_hash;
struct pkt *pkt;
const tal_t *ctx = tal_arr(NULL, char, 0);
Anchor anchor = ANCHOR__INIT;
u64 commit_tx_fee, total_in;
unsigned int locktime_seconds;
bool testnet;
size_t i;
struct pubkey commitkey, outkey, changekey;
struct privkey commitprivkey, outprivkey;
unsigned int locktime_seconds, min_confirms;
bool offer_anchor = false;
struct pubkey commitkey, finalkey;
err_set_progname(argv[0]);
/* Default values. */
anchor.min_confirms = 3;
/* Remember, other side contributes to fee, too. */
anchor.fee = 5000;
/* We only need this for involuntary close, so make it larger. */
commit_tx_fee = 100000;
/* This means we have ~1 day before they can steal our money. */
locktime_seconds = LOCKTIME_MIN + 24 * 60 * 60;
/* Zero, unless they set --offer-anchor or --min-anchor-confirms */
min_confirms = 0;
opt_register_noarg("--help|-h", opt_usage_and_exit,
"<seed> <amount> <changepubkey> <commitprivkey> <outprivkey> <txid>/<outnum>/<satoshis>/<script-in-hex>...\n"
"<seed> <commitpubkey> <finalpubkey>\n"
"A test program to output openchannel on stdout.",
"Print this message.");
opt_register_arg("--min-anchor-confirms",
opt_set_uintval, opt_show_uintval, &anchor.min_confirms,
opt_set_uintval, opt_show_uintval, &min_confirms,
"Number of anchor confirmations before channel is active");
opt_register_arg("--anchor-fee=<bits>",
opt_set_bits, opt_show_bits, &anchor.fee,
"100's of satoshi to pay for anchor");
opt_register_arg("--commitment-fee=<bits>",
opt_set_bits, opt_show_bits, &commit_tx_fee,
"100's of satoshi to pay for commitment");
opt_register_arg("--locktime=<seconds>",
opt_set_uintval, opt_show_uintval, &locktime_seconds,
"Seconds to lock out our transaction redemption");
opt_register_noarg("--offer-anchor",
opt_set_bool, &offer_anchor,
"Offer to create anchor transaction");
opt_parse(&argc, argv, opt_log_stderr_exit);
if (argc < 7)
opt_usage_exit_fail("Expected 6 or more arguments");
if (argc != 4)
opt_usage_exit_fail("Expected 3 arguments");
if (!hex_decode(argv[1], strlen(argv[1]), &seed, sizeof(seed)))
errx(1, "Invalid seed '%s' - need 256 hex bits", argv[1]);
anchor.total = atol(argv[2]);
if (!anchor.total)
errx(1, "Invalid total: must be > 0");
if (!pubkey_from_hexstr(argv[2], &commitkey))
errx(1, "Invalid commit key '%s'", argv[2]);
if (!pubkey_from_hexstr(argv[3], &changekey))
errx(1, "Invalid bitcoin pubkey '%s'", argv[3]);
if (!pubkey_from_hexstr(argv[3], &finalkey))
errx(1, "Invalid final key '%s'", argv[3]);
/* We don't really need the privkey here, but it's the most
* convenient way to get the pubkey from bitcoind. */
if (!key_from_base58(argv[4], strlen(argv[4]), &testnet,
&commitprivkey, &commitkey))
errx(1, "Invalid private key '%s'", argv[4]);
if (!testnet)
errx(1, "Private key '%s' not on testnet!", argv[4]);
if (!key_from_base58(argv[5], strlen(argv[5]), &testnet,
&outprivkey, &outkey))
errx(1, "Invalid private key '%s'", argv[5]);
if (!testnet)
errx(1, "Private key '%s' not on testnet!", argv[5]);
anchor.n_inputs = (argc - 6);
anchor.inputs = tal_arr(ctx, BitcoinInput *, anchor.n_inputs);
total_in = 0;
for (i = 0; i < anchor.n_inputs; i++) {
anchor.inputs[i] = parse_anchor_input(anchor.inputs, argv[i+6]);
total_in += anchor.inputs[i]->amount;
}
if (total_in < anchor.total + anchor.fee)
errx(1, "Only %llu satoshi in, and %llu out (+%llu fee)",
(unsigned long long)total_in,
(unsigned long long)anchor.total,
(unsigned long long)anchor.fee);
/* If there's change, say where to send it. */
if (total_in != anchor.total + anchor.fee) {
anchor.change = tal(ctx, Change);
change__init(anchor.change);
anchor.change->pubkey = pubkey_to_proto(anchor.change,
&changekey);
anchor.change->amount = total_in - (anchor.total + anchor.fee);
}
if (offer_anchor && min_confirms == 0)
min_confirms = 3;
/* Get first revocation hash. */
shachain_from_seed(&seed, 0, &revocation_hash);
sha256(&revocation_hash,
revocation_hash.u.u8, sizeof(revocation_hash.u.u8));
pkt = openchannel_pkt(ctx, &revocation_hash, &commitkey, &outkey,
commit_tx_fee, locktime_seconds, &anchor);
pkt = open_channel_pkt(ctx, &revocation_hash, &commitkey, &finalkey,
locktime_seconds, offer_anchor, min_confirms);
if (!write_all(STDOUT_FILENO, pkt, pkt_totlen(pkt)))
err(1, "Writing out packet");