We removed a warning about the channel_update being malformed since
the warning could cause lnd to disconnect (seems they treat
channel-unrelated warnings as fatal?). This was caused by lnd not
enforcing the `htlc_maximum`, thus the parsing would fail. We can
re-add the warning once our assumption that `htlc_maximum` being set
is valid.
Changelog-Fixed: gossip: We no longer send warning that lnd would not understand if we get outdated gossip
Private channel updates can no longer be flagged as spam during handling of
a new channel update (this was a bug.) Also slightly reworked previous
channel_update deletion for clarity.
When private channel updates exceed the gossip ratelimit, the previous
gossip store entry was not deleted even though all private channel updates
are stored. This caused gossip store corruption due to duplicate entries
for the same channel.
Fixes: #5656
Changelog-Fixed: Fixed gossip_store corruption from duplicate private channel updates
This adds a new "chan_dying" message to the gossip_store, but since we
already changed the minor version in this PR, we don't bump it again.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Added: Protocol: We now delay forgetting funding-spent channels for 12 blocks (as per latest BOLTs, to support splicing in future).
It's a bit more optimal, and tells gossipd exactly what height the
spend occurred at (with multiple blocks, it's not always the current
height!). It will need that next patch.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Added: Protocol: We now set the `dont_forward` bit on private channel_update's message_flags (as per latest BOLTs).
We will now simply reject old-style ones as invalid. Turns out the
only trace we could find is a channel between two nodes unconnected to
the rest of the network.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Changed: Protocol: We now require all channel_update messages include htlc_maximum_msat (as per latest BOLTs)
Many changes to gossmap (including the pending ones!) don't actually
concern readers, as long as they obey certain rules:
1. Ignore unknown messages.
2. Treat all 16 upper bits of length as flags, ignore unknown ones.
So now we split the version byte into MAJOR and MINOR, and you can
ignore MINOR changes.
We don't expose the internal version (for creating the map)
programmatically: you should really hardcode what major version you
understand!
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
If they really upgrade directly from 0.9.2, it will simply delete the
store and re-fetch it.
We still update from v9 (which could be v0.11), since it's a noop.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Add memleak_ignore_children() so callers can do exclusions themselves.
Having two exclusions was always such a hack!
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This is cleaner because, the `remote_addr` and `discovered_ip` are
related but two different things.
Within connectd and lightningd we use the peers `remote_addr` feature
to validate (and guess a port) to be used for IP discovery.
Also when a peer reports us a `remote_addr`, this is given to the plugin API
via the `peer_connected` hook. The network port here is not modified for
godd reason! This can be used i.e. to detect if we are behind a NAT.
But once lightningd figures enough peers report the same `remote_addr`,
it sets the port to the selected network and tells gossipd to use that for
`node_announcement` updates.
Hence, within gossipd, there is no (should not be) `remote_addr`.
Changelog-None
This contains the zeroconf stuff, with funding_locked renamed to
channel_ready. I change that everywhere, and try to fix up the
comments.
Also the `alias` field is called `short_channel_id`.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Changed: Protocol: `funding_locked` is now called `channel_ready` as per latest BOLTs.
We have them split over common/param.c, common/json.c,
common/json_helpers.c, common/json_tok.c and common/json_stream.c.
Change that to:
* common/json_parse (all the json_to_xxx routines)
* common/json_parse_simple (simplest the json parsing routines, for cli too)
* common/json_stream (all the json_add_xxx routines)
* common/json_param (all the param and param_xxx routines)
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This will only add the discovered `remote_addr` IPs if no other
addresses would be announced. Meaning whenever a public address was
found by autobind or an address was specified via commandline or config,
IP discovery will be disabled.
Addresses: #5305
Note from the author: We could/should also enable IP discovery when we only
have a TOR address (but without --always-use-proxy ofc). This will give
nodes an option to have a bootstrap way to be reached until IP discovery
can do the job in a more stable way.
Changelog-Changed: Only use IP discovery as fallback when no addresses would be announced
This commit got reduced to just changing a comment because
the stuff it initially did was already merged in before by
commit 7ff62b4a
So I just kept the changed comment as its more precise.
Changelog-None
routing.c fixed to properly remove rate-limited gossip_store entries
when channels are closed. This caused gossipd to crash on a subsequent
gossip_store_load. Also corrects an overzealous limit of one gossip_store
entry per message (should now allow one broadcastable and one
rate-limited). Addresses issues 5387, 5395.
Changelog-None
This grows the routing state in order to index both okay-to-broadcast
and rate-limited gossip. The gossip_store also logs the rate-limited
gossip if useful. This allows the broadcast of the last non-rate-limited
gossip.
routing.c now flags rate-limited gossip as it enters the gossip_store but
makes use of it in updating the routing graph. Flagged gossip is not
rebroadcast to gossip peers.
Changelog-Changed: gossipd: now accepts spam gossip, but squelches it for
peers.
This will be used to decouple internal use of gossip from what is
passed to gossip peers. Updates GOSSIP_STORE_VERION to 10.
Changelog-Changed: gossip_store updated to version 10.
@whitslack complained of large CPU usage by connectd at startup;
I ran perf record on connectd on my machine (which sees a little spike, only)
and I see the cost of reading and discarding the entries:
```
- 95.52% 5.24% lightning_conne lightning_connectd [.] gossip_store_next
- 90.28% gossip_store_next
+ 40.27% tal_alloc_arr_
+ 22.78% tal_free
+ 11.74% crc32c
+ 9.32% fromwire_peektype
+ 4.10% __libc_pread64 (inlined)
1.70% be32_to_cpu
```
Much of this is caused by the search for our own gossip: keeping this separately
would be even better, but this fix is minimal.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Fixed: connectd: reduce initial CPU load when connecting to peers.
We had json_add_amount_msat_only(), which was designed to be used to
print out msat fields, if we had sats.
However, we misused it, so split it into the three different cases:
1. json_add_amount_sat_msat: We are using it correctly, with a field called
xxx_msat.
2. json_add_amount_sats_deprecated: We were using it wrong, so deprecate
the old field and create a new one which does end in _msat.
3. json_add_sats: we were using it to hand sats as a JSON parameter to an
interface, where "XXXsat".
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Deprecated: Plugins: `rbf_channel` and `openchannel2` hooks `their_funding` (use `their_funding_msat`)
Changelog-Deprecated: Plugins: `openchannel2` hook `dust_limit_satoshis` (use `dust_limit_msat`)
Changelog-Deprecated: Plugins: `openchannel` hook `funding_satoshis` (use `funding_msat`)
Changelog-Deprecated: Plugins: `openchannel` hook `dust_limit_satoshis` (use `dust_limit_msat`)
Changelog-Deprecated: Plugins: `openchannel` hook `channel_reserve_satoshis` (use `channel_reserve_msat`)
Changelog-Deprecated: Plugins: `channel_opened` notification `amount` (use `funding_msat`)
Changelog-Deprecated: JSON-RPC: `listtransactions` `msat` (use `amount_msat`)
Changelog-Deprecated: Plugins: `htlc_accepted` `forward_amount` (use `forward_msat`)
This was eliminated this morning in the latest spec. We still accept them,
we just don't produce them any more.
Changelog-Removed: Protocol: We no longer create gossip messages which use zlib encoding (we still understand them, for now!)
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We have an explicit filter against redundant node_announcement
updates; we only allow 1 a week. This means that our change to force
a reannouncement every 24 hours did not work!
Allow once a day, instead.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This attempted to make us re-xmit our own node_announcement at restart,
by moving the node_announcement to the end of the gossip store. But,
as nothing is connected, yet, this had no effect!
We will rexmit it anyway, since it's marked PUSH.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We do this (send warnings) in almost all cases anyway, so mainly this
is a textual update, but there are some changes:
1. Send ERROR not WARNING if they send a malformed commitment secret.
2. Send WARNING not ERROR if they get the shutdown_scriptpubkey wrong (vs upfront)
3. Send WARNING not ERROR if they send a bad shutdown_scriptpubkey (e.g. p2pkh in future)
4. Rename some vars 'err' to 'warn' to make it clear we send a warning.
This means test_option_upfront_shutdown_script can be made reliable, too,
and it now warns and doesn't automatically close channel.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Gossipd didn't actually suppress all gossip, resulting in a flake!
Doing it in connectd now makes much more sense.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Requiring the caller to allocate them is ugly, and differs from
other types.
This means we need a context arg if we don't have one already.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Simply exit, like we do when master daemon_conn exits.
```
Valgrind error file: valgrind-errors.2211908
==2211908== Invalid read of size 8
==2211908== at 0x12AC13: daemon_conn_send (daemon_conn.c:137)
==2211908== by 0x113CD9: queue_peer_msg (gossipd.c:118)
==2211908== by 0x11B806: query_channel_range (queries.c:1169)
==2211908== by 0x1250DD: peer_gossip_probe_scids (seeker.c:706)
==2211908== by 0x1253B1: check_firstpeer (seeker.c:788)
==2211908== by 0x1256CA: seeker_check (seeker.c:884)
==2211908== by 0x1366AC: timer_expired (timeout.c:62)
==2211908== by 0x1163D1: main (gossipd.c:1146)
==2211908== Address 0x4cafdf0 is 48 bytes inside a block of size 88 free'd
==2211908== at 0x48460C4: free (vg_replace_malloc.c:872)
==2211908== by 0x1805EA: del_tree (tal.c:421)
==2211908== by 0x1808BE: tal_free (tal.c:486)
==2211908== by 0x12AB25: destroy_dc_from_conn (daemon_conn.c:112)
==2211908== by 0x17FFDF: notify (tal.c:237)
==2211908== by 0x180519: del_tree (tal.c:402)
==2211908== by 0x1808BE: tal_free (tal.c:486)
==2211908== by 0x16EE9A: io_close (io.c:450)
==2211908== by 0x16ECA9: do_plan (io.c:401)
==2211908== by 0x16ED16: io_ready (io.c:417)
==2211908== by 0x1710B2: io_loop (poll.c:453)
==2211908== by 0x1163C5: main (gossipd.c:1144)
==2211908== Block was alloc'd at
==2211908== at 0x484384F: malloc (vg_replace_malloc.c:381)
==2211908== by 0x180064: allocate (tal.c:250)
==2211908== by 0x180634: tal_alloc_ (tal.c:428)
==2211908== by 0x12AB65: daemon_conn_new_ (daemon_conn.c:122)
==2211908== by 0x1155F4: gossip_init (gossipd.c:763)
==2211908== by 0x116014: recv_req (gossipd.c:999)
==2211908== by 0x12A828: handle_read (daemon_conn.c:31)
==2211908== by 0x16E09F: next_plan (io.c:59)
==2211908== by 0x16ECD4: do_plan (io.c:407)
==2211908== by 0x16ED16: io_ready (io.c:417)
==2211908== by 0x1710B2: io_loop (poll.c:453)
==2211908== by 0x1163C5: main (gossipd.c:1144)
==2211908==
```
Christian Decker
Rusty Russell
Alex Myers
Michael Schmoock
Vincenzo Palazzo