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elements: Tell onchaind it may ignore fee outputs

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We'd get upset otherwise since we can't grab those.

Signed-off-by: Christian Decker <decker.christian@gmail.com>
This commit is contained in:
Christian Decker 2019-05-09 18:55:42 +02:00 committed by Rusty Russell
parent bb76d6daa6
commit 84144bcef6
2 changed files with 46 additions and 3 deletions
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3
onchaind/onchain_types.h
View File

@ -64,6 +64,9 @@ enum output_type {
/* HTLC outputs: their offers and our offers */
THEIR_HTLC,
OUR_HTLC,
/* For elements we need a fee output type */
ELEMENTS_FEE,
};

46
onchaind/onchaind.c
View File

@ -723,7 +723,10 @@ static bool is_mutual_close(const struct bitcoin_tx *tx,
for (i = 0; i < tx->wtx->num_outputs; i++) {
const u8 *script = bitcoin_tx_output_get_script(tmpctx, tx, i);
/* To be paranoid, we only let each one match once. */
if (scripteq(script, local_scriptpubkey)
if (is_elements && tal_bytelen(script) == 0) {
/* This is a fee output, ignore please */
continue;
} else if (scripteq(script, local_scriptpubkey)
&& !local_matched)
local_matched = true;
else if (scripteq(script, remote_scriptpubkey)
@ -1093,6 +1096,7 @@ static void output_spent(const struct chainparams *chainparams,
/* Um, we don't track these! */
case OUTPUT_TO_THEM:
case DELAYED_OUTPUT_TO_THEM:
case ELEMENTS_FEE:
status_failed(STATUS_FAIL_INTERNAL_ERROR,
"Tracked spend of %s/%s?",
tx_type_name(out->tx_type),
@ -1787,7 +1791,19 @@ static void handle_our_unilateral(const struct bitcoin_tx *tx,
const u8 *oscript = bitcoin_tx_output_get_script(tmpctx, tx, i);
struct amount_sat amt = bitcoin_tx_output_get_amount(tx, i);
if (script[LOCAL]
if (is_elements && tal_bytelen(oscript) == 0) {
status_debug("OUTPUT %zu is a fee output", i);
/* An empty script simply means that that this is a
* fee output. */
out = new_tracked_output(tx->chainparams, &outs,
txid, tx_blockheight,
OUR_UNILATERAL, i,
amt,
ELEMENTS_FEE,
NULL, NULL, NULL);
ignore_output(out);
continue;
}else if (script[LOCAL]
&& scripteq(oscript, script[LOCAL])) {
struct bitcoin_tx *to_us;
enum tx_type tx_type = OUR_DELAYED_RETURN_TO_WALLET;
@ -2134,6 +2150,19 @@ static void handle_their_cheat(const struct bitcoin_tx *tx,
const u8 *oscript = bitcoin_tx_output_get_script(tmpctx, tx, i);
struct amount_sat amt = bitcoin_tx_output_get_amount(tx, i);
if (is_elements && tal_bytelen(oscript) == 0) {
/* An empty script simply means that that this is a
* fee output. */
out = new_tracked_output(tx->chainparams,
&outs, txid, tx_blockheight,
OUR_UNILATERAL, i,
amt,
ELEMENTS_FEE,
NULL, NULL, NULL);
ignore_output(out);
continue;
}
if (script[LOCAL]
&& scripteq(oscript, script[LOCAL])) {
/* BOLT #5:
@ -2353,7 +2382,18 @@ static void handle_their_unilateral(const struct bitcoin_tx *tx,
const u8 *oscript = bitcoin_tx_output_get_script(tmpctx, tx, i);
struct amount_sat amt = bitcoin_tx_output_get_amount(tx, i);
if (script[LOCAL] && scripteq(oscript, script[LOCAL])) {
if (is_elements && tal_bytelen(oscript) == 0) {
/* An empty script simply means that that this is a
* fee output. */
out = new_tracked_output(tx->chainparams,
&outs, txid, tx_blockheight,
OUR_UNILATERAL, i,
amt,
ELEMENTS_FEE,
NULL, NULL, NULL);
ignore_output(out);
continue;
} else if (script[LOCAL] && scripteq(oscript, script[LOCAL])) {
/* BOLT #5:
*
* - MAY take no action in regard to the associated