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lightningd: make invoices insist on payment_secret.

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In fact, we make it compulsory, which means if you don't understand it
you'll hang up on us!

Add some logging for that in future.

Changelog-Changed: Protocol: All new invoices require a payment_secret (i.e. modern TLV format onion)
Changelog-Changed: Protocol: We can no longer connect to peers which don't support `payment_secret`.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell 2021-07-13 06:18:58 +09:30 committed by neil saitug
parent 8f86b45f26
commit 9eb531868f
5 changed files with 10 additions and 5 deletions
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3
connectd/connectd.c
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@ -479,6 +479,7 @@ struct io_plan *peer_connected(struct io_conn *conn,
unsup = features_unsupported(daemon->our_features, their_features,
INIT_FEATURE);
if (unsup != -1) {
status_peer_unusual(id, "Unsupported feature %u", unsup);
msg = towire_warningfmt(NULL, NULL, "Unsupported feature %u",
unsup);
msg = cryptomsg_encrypt_msg(tmpctx, cs, take(msg));
@ -486,6 +487,8 @@ struct io_plan *peer_connected(struct io_conn *conn,
}
if (!feature_check_depends(their_features, &depender, &missing)) {
status_peer_unusual(id, "Feature %zu requires feature %zu",
depender, missing);
msg = towire_warningfmt(NULL, NULL,
"Feature %zu requires feature %zu",
depender, missing);

2
lightningd/lightningd.c
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@ -811,7 +811,7 @@ static struct feature_set *default_features(const tal_t *ctx)
OPTIONAL_FEATURE(OPT_UPFRONT_SHUTDOWN_SCRIPT),
OPTIONAL_FEATURE(OPT_GOSSIP_QUERIES),
OPTIONAL_FEATURE(OPT_VAR_ONION),
OPTIONAL_FEATURE(OPT_PAYMENT_SECRET),
COMPULSORY_FEATURE(OPT_PAYMENT_SECRET),
OPTIONAL_FEATURE(OPT_BASIC_MPP),
OPTIONAL_FEATURE(OPT_GOSSIP_QUERIES_EX),
OPTIONAL_FEATURE(OPT_STATIC_REMOTEKEY),

4
tests/test_connection.py
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@ -3376,7 +3376,9 @@ def test_nonstatic_channel(node_factory, bitcoind):
"""Smoke test for a channel without option_static_remotekey"""
l1, l2 = node_factory.line_graph(2,
opts=[{},
{'dev-force-features': '////'}])
# needs at least 15 to connect
# (and 9 is a dependent)
{'dev-force-features': '9,15////'}])
chan = only_one(only_one(l1.rpc.listpeers()['peers'])['channels'])
assert 'option_static_remotekey' not in chan['features']
assert 'option_anchor_outputs' not in chan['features']

2
tests/test_misc.py
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@ -1893,7 +1893,7 @@ def test_list_features_only(node_factory):
'option_var_onion_optin/odd',
'option_gossip_queries_ex/odd',
'option_static_remotekey/odd',
'option_payment_secret/odd',
'option_payment_secret/even',
'option_basic_mpp/odd',
]
if EXPERIMENTAL_FEATURES:

4
tests/utils.py
View File

@ -20,7 +20,7 @@ def hex_bits(features):
def expected_peer_features(wumbo_channels=False, extra=[]):
"""Return the expected peer features hexstring for this configuration"""
features = [1, 5, 7, 9, 11, 13, 15, 17, 27]
features = [1, 5, 7, 9, 11, 13, 14, 17, 27]
if EXPERIMENTAL_FEATURES:
# OPT_ONION_MESSAGES
features += [39]
@ -40,7 +40,7 @@ def expected_peer_features(wumbo_channels=False, extra=[]):
# features for the 'node' and the 'peer' feature sets
def expected_node_features(wumbo_channels=False, extra=[]):
"""Return the expected node features hexstring for this configuration"""
features = [1, 5, 7, 9, 11, 13, 15, 17, 27, 55]
features = [1, 5, 7, 9, 11, 13, 14, 17, 27, 55]
if EXPERIMENTAL_FEATURES:
# OPT_ONION_MESSAGES
features += [39]