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dual-fund: validate upfront shutdown using taproot + anchors 

Re-use validation from openingd
This commit is contained in:
niftynei 2022-10-19 12:03:18 -05:00 committed by Rusty Russell
parent 46dc37dff1
commit ef3f05b52a
1 changed files with 18 additions and 6 deletions
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24
openingd/dualopend.c
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@ -863,6 +863,20 @@ static bool is_segwit_output(struct wally_tx_output *output)
return is_p2wsh(wit_prog, NULL) || is_p2wpkh(wit_prog, NULL);
}
static void set_remote_upfront_shutdown(struct state *state,
u8 *shutdown_scriptpubkey STEALS)
{
char *err;
err = validate_remote_upfront_shutdown(state, state->our_features,
state->their_features,
shutdown_scriptpubkey,
&state->upfront_shutdown_script[REMOTE]);
if (err)
peer_failed_err(state->pps, &state->channel_id, "%s", err);
}
/* Memory leak detection is DEVELOPER-only because we go to great lengths to
* record the backtrace when allocations occur: without that, the leak
* detection tends to be useless for diagnosing where the leak came from, but
@ -2051,10 +2065,9 @@ static void accepter_start(struct state *state, const u8 *oc2_msg)
open_err_fatal(state, "Parsing open_channel2 %s",
tal_hex(tmpctx, oc2_msg));
if (open_tlv->upfront_shutdown_script) {
state->upfront_shutdown_script[REMOTE] =
tal_steal(state, open_tlv->upfront_shutdown_script);
} else
if (open_tlv->upfront_shutdown_script)
set_remote_upfront_shutdown(state, open_tlv->upfront_shutdown_script);
else
state->upfront_shutdown_script[REMOTE] = NULL;
/* This is an `option_will_fund` request */
@ -2778,8 +2791,7 @@ static void opener_start(struct state *state, u8 *msg)
}
if (a_tlv->upfront_shutdown_script)
state->upfront_shutdown_script[REMOTE]
= tal_steal(state, a_tlv->upfront_shutdown_script);
set_remote_upfront_shutdown(state, a_tlv->upfront_shutdown_script);
else
state->upfront_shutdown_script[REMOTE] = NULL;