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pay: correctly blame the *next* node on BADONION error.

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The node which sent the error is doing so because the following
one sent WIRE_UPDATE_FAIL_MALFORMED_HTLC.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell 2019-01-08 11:23:25 +10:30 • committed by Christian Decker
parent f5ced1ddd5
commit 8f8783c0e3
2 changed files with 13 additions and 3 deletions
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15
lightningd/pay.c
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@ -351,11 +351,22 @@ remote_routing_failure(const tal_t *ctx,
report_to_gossipd = true;
else
report_to_gossipd = false;
} else
erring_node = &route_nodes[origin_index];
} else {
/* Report the *next* channel as failing. */
erring_channel = &route_channels[origin_index + 1];
erring_node = &route_nodes[origin_index];
/* If the error is a BADONION, then it's on behalf of the
* following node. */
if (failcode & BADONION) {
log_debug(log, "failcode %u => erring_node %s",
failcode,
type_to_string(tmpctx, struct pubkey,
&route_nodes[origin_index + 1]));
erring_node = &route_nodes[origin_index + 1];
} else
erring_node = &route_nodes[origin_index];
}
routing_failure->erring_index = (unsigned int) (origin_index + 1);
routing_failure->failcode = failcode;

1
tests/test_misc.py
View file

@ -1137,7 +1137,6 @@ def test_check_command(node_factory):
sock.close()
@pytest.mark.xfail(strict=True)
def test_bad_onion(node_factory, bitcoind):
"""Test that we get a reasonable error from sendpay when an onion is bad"""
l1, l2, l3, l4 = node_factory.line_graph(4, wait_for_announce=True)