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lightningd: only allow closing to native segwit

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Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Removed: JSON-RPC: `close` `destination` no longer allows p2pkh or p2sh addresses (deprecated v0.11.0)
This commit is contained in:
Rusty Russell
2022-12-12 16:36:04 +10:30
parent ae48c7b78d
commit 66bde4bd9f
6 changed files with 11 additions and 8 deletions
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4
common/shutdown_scriptpubkey.c
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@@ -48,9 +48,9 @@ static bool is_valid_witnessprog(const u8 *scriptpubkey)
bool valid_shutdown_scriptpubkey(const u8 *scriptpubkey,
bool anysegwit,
bool anchors)
bool allow_oldstyle)
{
if (!anchors) {
if (allow_oldstyle) {
if (is_p2pkh(scriptpubkey, NULL)
|| is_p2sh(scriptpubkey, NULL))
return true;

5
common/shutdown_scriptpubkey.h
View File

@@ -16,8 +16,11 @@
* - if the `scriptpubkey` is not in one of the above forms:
* - SHOULD send a `warning`
*/
/* We still allow them to specify an old-style P2PKH or P2SH (though we
* never will send such a thing!) if they're not using anchors. */
bool valid_shutdown_scriptpubkey(const u8 *scriptpubkey,
bool anysegwit,
bool anchors);
bool allow_oldstyle);
#endif /* LIGHTNING_COMMON_SHUTDOWN_SCRIPTPUBKEY_H */

2
lightningd/channel_control.c
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@@ -315,7 +315,7 @@ static void peer_got_shutdown(struct channel *channel, const u8 *msg)
* - if the `scriptpubkey` is not in one of the above forms:
* - SHOULD send a `warning`.
*/
if (!valid_shutdown_scriptpubkey(scriptpubkey, anysegwit, anchors)) {
if (!valid_shutdown_scriptpubkey(scriptpubkey, anysegwit, !anchors)) {
u8 *warning = towire_warningfmt(NULL,
&channel->cid,
"Bad shutdown scriptpubkey %s",

4
lightningd/closing_control.c
View File

@@ -724,11 +724,11 @@ static struct command_result *json_close(struct command *cmd,
channel->peer->their_features,
OPT_SHUTDOWN_ANYSEGWIT);
if (!valid_shutdown_scriptpubkey(channel->shutdown_scriptpubkey[LOCAL],
anysegwit, !deprecated_apis)) {
anysegwit, false)) {
/* Explicit check for future segwits. */
if (!anysegwit &&
valid_shutdown_scriptpubkey(channel->shutdown_scriptpubkey
[LOCAL], true, !deprecated_apis)) {
[LOCAL], true, false)) {
return command_fail(cmd, JSONRPC2_INVALID_PARAMS,
"Peer does not allow v1+ shutdown addresses");
}

2
lightningd/dual_open_control.c
View File

@@ -1364,7 +1364,7 @@ static void handle_peer_wants_to_close(struct subd *dualopend,
* - if the `scriptpubkey` is not in one of the above forms:
* - SHOULD send a `warning`
*/
if (!valid_shutdown_scriptpubkey(scriptpubkey, anysegwit, anchors)) {
if (!valid_shutdown_scriptpubkey(scriptpubkey, anysegwit, !anchors)) {
u8 *warning = towire_warningfmt(NULL,
&channel->cid,
"Bad shutdown scriptpubkey %s",

2
openingd/openingd.c
View File

@@ -311,7 +311,7 @@ static void set_remote_upfront_shutdown(struct state *state,
= tal_steal(state, shutdown_scriptpubkey);
if (shutdown_scriptpubkey
&& !valid_shutdown_scriptpubkey(shutdown_scriptpubkey, anysegwit, anchors))
&& !valid_shutdown_scriptpubkey(shutdown_scriptpubkey, anysegwit, !anchors))
peer_failed_err(state->pps,
&state->channel_id,
"Unacceptable upfront_shutdown_script %s",