l2 gave us a routehint, but it should have seen l1 as a dead-end. It
didn't due to the presence of a channel alias, which was a bug. We're
about to fix this, which breaks the test.
Add a dummy node off l1.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
"Patrick, I'm sorry I doubted you."
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Changed: Config: `large-channels` is now the default, wumbology for all.
The latter is used when we're put in the db, the former is the uncommitted state.
Currently dbid == 0 is used in addition to the state, which is unwieldy.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Experimental: JSON-RPC: added new dual-funding state `DUALOPEND_OPEN_COMMITTED`
If a node has an onchain balance with at least one uneconomical UTXO, the fundchannel RPC call will lock up the node and will eventually crash it with OOM issues if the economical UTXO(s) do not add up to the fundchannel amount. This is because the while loop never exits because it keeps pulling in the same uneconomical UTXOs forever.
Changelog-Fixed: wallet: fundchannel no longer loops forever if the wallet contains insufficient funds, but an uneconomical UTXO.
Tony Giorgio <tonygiorgio@protonmail.com> says:
Reproduce:
1. Add 1 600 sat UTXO to a fresh node
2. Verify the fundchannel command fails with a low fee rate:
```
./lightning-cli fundchannel 0366abc8eb4da61e31a8d2c4520d31cabdf58cc5250f855657397f3dd62493938a 100000 1000
{
"code": 301,
"message": "Could not afford 100000sat using all 1 available UTXOs: 99522sat short"
}
```
3. Now do the command again, but with a higher fee rate, making the 600 sat UTXO uneconomical:
```
./lightning-cli fundchannel 0366abc8eb4da61e31a8d2c4520d31cabdf58cc5250f855657397f3dd62493938a 100000 10000
```
4. Observe the RPC call and the logs. The RPC call will never return, and the logs will stop after this:
```
2023-04-16T10:58:45.839Z DEBUG plugin-spenderp: mfc 34: multiconnect done.
2023-04-16T10:58:45.839Z DEBUG plugin-spenderp: mfc 34: 'parsefeerate' done
2023-04-16T10:58:45.839Z DEBUG plugin-spenderp: mfc 34: fundpsbt.
```
5. Keep CLN running long enough and you'll eventually run OOM.
Clean restart of daemon after a tx-abort is a nice way to work around
the 'persistent' disconnect that we t-bast noticed.
Changelog-Fixed: `dualopend`: Fix behavior for tx-aborts. No longer hangs, appropriately continues re-init of RBF requests without reconnction msg exchange.
Bug Report:
- initiate a channel open eclair -> cln
- wait for the transaction to be published
- eclair initiates rbf, and cancels it by sending tx_abort before exchanging commit_sig
- at that point everything looks good, cln echoes the tx_abort and stays connected
- eclair initiates another RBF attempt and sends tx_init_rbf: for some unknown reason,
cln answers with channel_reestablish (??) followed by an error saying
"Bad reestablish message: WIRE_TX_INIT_RBF"
Diagnosis:
CLN is doing a reconnect after a tx-abort is sent.
Extra Test:
Realized that if we abort, we won't correctly advanced to NORMAL if
blocks are mined while we're in hanging state. CLN should advance
after block containing channel open is mined.
Reported-By: @t-bast
l1 shuts down too fast, channeld doesn't get to tell gossipd about the channel,
and l2 sends (private) update_channel and we complain:
```
lightningd-2 2023-07-20T03:42:37.744Z DEBUG gossipd: received private channel announcement from channeld for 103x1x0
lightningd-2 2023-07-20T03:42:37.791Z DEBUG 022d223620a359a47ff7f7ac447c85c46c923da53389221a0054c11c1e3ca31d59-hsmd: Got WIRE_HSMD_CUPDATE_SIG_REQ
lightningd-2 2023-07-20T03:42:37.796Z DEBUG hsmd: Client: Received message 3 from client
lightningd-1 2023-07-20T03:42:37.857Z DEBUG 022d223620a359a47ff7f7ac447c85c46c923da53389221a0054c11c1e3ca31d59-gossipd: Bad gossip order: WIRE_CHANNEL_UPDATE before announcement 103x1x0/0
lightningd-1 2023-07-20T03:42:37.864Z DEBUG 022d223620a359a47ff7f7ac447c85c46c923da53389221a0054c11c1e3ca31d59-gossipd: Bad gossip order: WIRE_CHANNEL_UPDATE before announcement 103x1x0/0
```
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We use parameterization here. The old `anchor_expected()` was for
non-zero-fee anchors, and have bitrotted so there are some other
changes as well.
Unfortunately, all the anchor accounting seems to be broken, but I
cannot understand these tests at all. I had to simply disable them
for now.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We need to know both, because in theory we could negotiate a
non-anchor channel even if they support it.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This currently means anchors tests are disabled, awaiting the
PR which implements zero-fee-htlc anchors to reenable them.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
When a channel open fails, we use tx-abort instead of warning/error.
This means that the peer won't disconnect! And instead when a new
message arrives, we'll need to rebuild the dualopend subd (if missing).
Makes opens a bit easer to retry (no reconnect needed), as well as keeps
the connection alive for other channels we may have with that peer.
Changelog-Changed: Experimental-Dual-Fund: open failures don't disconnect, but instead fail the opening process
Dropping the connection is bad behavior on an openchannel failure,
especially given that there might be other channels currently connected.
We should maintain the connection but close out the dualopend
daemon for that attempt.
This test partially documents the behaivor, but fails
Changelog-None
Changelog-Changed: JSON-RPC: `listfunds` now lists coinbase outputs as 'immature' until they're spendable
Changelog-Changed: JSON-RPC: UTXOs aren't spendable while immature
We use the saved previous outputs (plus maybe some new ones?) to build a
psbt for an RBF request.
RBFs utxo reuse is now working so we can unfail the test (and update
it to reflect that the lease sticks around through an RBF cycle).
Changelog-Fixed: Plugins: `funder` now honors lease requests across RBFs
Second pay can fail if first is not completely settled:
```
def test_zeroconf_forward(node_factory, bitcoind):
"""Ensure that we can use zeroconf channels in forwards.
...
# Make sure (esp in non-dev-mode) blockheights agree so we don't WIRE_EXPIRY_TOO_SOON...
sync_blockheight(bitcoind, [l1, l2, l3])
inv = l3.rpc.invoice(42 * 10**6, 'inv1', 'desc')['bolt11']
l1.rpc.pay(inv)
# And now try the other way around: zeroconf channel first
# followed by a public one.
wait_for(lambda: len(l3.rpc.listchannels()['channels']) == 4)
inv = l1.rpc.invoice(42, 'back1', 'desc')['bolt11']
> l3.rpc.pay(inv)
...
> raise RpcError(method, payload, resp['error'])
E pyln.client.lightning.RpcError: RPC call failed: method: pay, payload: {'bolt11': 'lnbcrt420p1p3junrssp588gtjzmlrr4pfj7ssmdlulzhhushrpq3rdqxjuz2m33scsvzdjlspp5fk5yhu6netc0d0sgp8es52vjk6akhd3uayr08u8max4d8rwzpjuqdq8v3jhxccxqyjw5qcqp99qyysgqcpyyugejv4nya97v6gw8fhtr0ru3vq87jjlltav99wlat436a95n0z8yzdp699p9md0zz9tmnsjpvfj622n9g9fh7r6ldhpgh9wmr4qpcru3rk'}, error: {'code': 210, 'message': 'Destination 0266e4598d1d3c415f572a8488830b60f7e744ed9235eb0b1ba93283b315c03518 is not reachable directly and all routehints were unusable.', 'attempts': [{'status': 'failed', 'failreason': 'Destination 0266e4598d1d3c415f572a8488830b60f7e744ed9235eb0b1ba93283b315c03518 is not reachable directly and all routehints were unusable.', 'partid': 0, 'amount_msat': 42msat}]}
```
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Otherwise what the hook sees is actually a lie, and if it sets it
we might override it.
The side effect is that we add an explicit "forward_to" field, and
allow hooks to override it. This lets a *hook* control channel
choice explicitly.
Changelod-Added: Plugins: `htlc_accepted_hook` return can specify what channel to forward htlc to.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Prior to this we might end up with a commitment transaction without
any outputs, if combined with `--dev-allowdustreserve`. Otherwise the
reserve being larger than dust means the funder could not drop its
direct output to be below dust.
Reported-by: Rusty Russell <@rustyrussell>
Technically this is a non-conformance with the spec, hence the `dev`
flag to opt-in, however I'm being told that it is also implemented in
other implementations. I'll follow this up with a proposal to the spec
to remove the checks we now bypass.
We were double counting channel lease fees because we were double firing
the channel open event sequence (so to speak). If we don't report
balances for unopened channels, we don't have this problem?
Changelog-Changed: Plugins: `balance_snapshot` notification does not send balances for channels that aren't locked-in/opened yet
Reproduce crash for #5557!
If we record the channel open because bookkeeper was added after the
channel open request started but the channel confirms later, we end up
with re-recording any associated push or leased fees (paid or rcvd).
In the case where you've paid for these fees, your channel balance goes
negative and the node crashes the next time you call `listbalances`.
Reported-by: @chrisguida
This alters the billboard, but that's a human-readable thing so not
noted in CHANGELOG.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Changed: JSON-RPC: `listpeers` `status` now refers to "channel ready" rather than "funding locked" (BOLT language change for zeroconf channels)
Changelog-Added: JSON-RPC: `channel_opened` notification `channel_ready` flag.
Changelog-Deprecated: JSON-RPC: `channel_opened` notification `funding_locked` flag (use `channel_ready`: BOLTs namechange).
