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gossmap: don't crash if we see a duplicate channel_announce.

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Apparently we had two private channel announcements (the !private assert
failed).  While this shouldn't happen, don't crash because of it.

Fixes: #5578
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Fixed: Plugins: topology plugin could crash when it sees duplicate private channel announcements.
This commit is contained in:
Rusty Russell
2022-09-14 12:27:19 +09:30
committed by neil saitug
parent 023a688e3f
commit 112115022c
1 changed files with 1 additions and 4 deletions
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5
common/gossmap.c
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@@ -414,11 +414,8 @@ static struct gossmap_chan *add_channel(struct gossmap *map,
* that's the only time we get duplicates */
scid.u64 = map_be64(map, cannounce_off + plus_scid_off);
chan = gossmap_find_chan(map, &scid);
if (chan) {
assert(chan->private);
assert(!private);
if (chan)
gossmap_remove_chan(map, chan);
}
/* We carefully map pointers to indexes, since new_node can move them! */
n[0] = gossmap_find_node(map, &node_id[0]);