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gossip_store: make private channels more similar to channel_announcement

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Instead of a boutique message, use a "real" channel_announcement for
private channels (with fake sigs and pubkeys).  This makes it far
easier for gossmap to handle local channels.

Backwards compatible update, since we update old stores.

We also fix devtools/dump-gossipstore to know about the tombstone markers.

Since we increment our channel_announce count for local channels now,
the stats in the tests changed too.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell
2020-10-20 14:29:30 +10:30
parent c6625943b5
commit 83aea6b2bb
25 changed files with 393 additions and 153 deletions
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13
devtools/dump-gossipstore.c
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@@ -53,6 +53,7 @@ int main(int argc, char *argv[])
while (read(fd, &hdr, sizeof(hdr)) == sizeof(hdr)) {
struct amount_sat sat;
struct short_channel_id scid;
u32 msglen = be32_to_cpu(hdr.len);
u8 *msg, *inner;
bool deleted, push;
@@ -92,13 +93,19 @@ int main(int argc, char *argv[])
printf("t=%u node_announcement: %s\n",
be32_to_cpu(hdr.timestamp),
tal_hex(msg, msg));
} else if (fromwire_peektype(msg) == WIRE_GOSSIPD_LOCAL_ADD_CHANNEL) {
printf("local_add_channel: %s\n",
tal_hex(msg, msg));
} else if (fromwire_gossip_store_private_channel(msg, msg, &sat,
&inner)) {
printf("private channel_announcement: %s %s\n",
type_to_string(tmpctx, struct amount_sat, &sat),
tal_hex(msg, inner));
} else if (fromwire_gossip_store_private_update(msg, msg,
&inner)) {
printf("private channel_update: %s\n",
tal_hex(msg, inner));
} else if (fromwire_gossip_store_delete_chan(msg, &scid)) {
printf("delete channel: %s\n",
type_to_string(tmpctx, struct short_channel_id,
&scid));
} else {
warnx("Unknown message %u",
fromwire_peektype(msg));