We had one report of this, and then Eugene and Roasbeef of Lightning
Labs confirmed it; they saw misordered HTLCs on reconnection too.
Since we didn't enforce this when we receive HTLCs, we never noticed :(
Fixes: #3920
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Fixed: Protocol: fixed retransmission order of multiple new HTLCs (causing channel close with LND)
We didn't care, but other implementations (particularly lnd) do. And it
does violate the spec.
(We need to use skip not xfail on the test which catches this, since
xfail doesn't seem to stop errors reported by cleanup)
(Includes Christian's typo fix!)
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We're rarely in a hurry here, and bitcoind is aggressive with fees.
You can always spend this output if you really have to, using CPFP.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Changed: Protocol: mutual closing feerate reduced to "slow" to avoid overpaying.
lightning-5 can sometimes see itself sweeping the unilateral output resulting
in this weird line:
```log
HTLC already resolved by SELF when we found preimage
```
In both cases the flakyness arises from the destination not knowing about the
modified fees of the forwarding node, thus including the outdated details in
the routehint, and the sender being unlucky and always trying with the
routehint anyway.
The long-term solutions to this is going to be #4111, this commit just reduces
the flakyness to get back to business.
We really are just interested in their on-chain footprint, so actually
starting the nodes is pointless overhead, and caused a lot of flakyness due to
the output ordering sometimes not matching up. We now just use the `bitcoind`
API to fund, sign and send a raw transaction that matches the stashed gossip
messages.
We added a conversion of failcodes that do not have sufficient information in
faac4b28ad. That means that a failcode that'd require additional information
in order to be a correct error to return in an onion is mapped to a generic
one since we can't backfill the information.
This tests that the mapping is performed correctly and replicates the
situation in #4070
Changelog-Added: JSON-RPC: delpay a new method to delete the payment completed or failed.
Signed-off-by: Vincenzo Palazzo <vincenzopalazzodev@gmail.com>
Fixes: #3926
(probably)
Changelog-Fixed: pay: Also limit the number of splits if the payee seems to have a low number of channels that can enter it, given the max-concurrent-htlcs limit.
Hooks do not tolerate failures at all. If we return a JSON-RPC error to a hook
call the only thing the main daemon can really do is to crash. This commit
adds a mapping of error to a safe fallback result, including a warning to the
node operator that this should be addressed in the plugin. The warning is
reported as a `**BROKEN**` message, and should therefore fail any testing done
on the plugin.
Changelog-Fixed: pyln: Fixed HTLCs hanging indefinitely if the hook function raises an exception. A safe fallback result is now returned instead.
This test is flaky because the generated PSBT seems to not have the change
output adjusted, or it is missing.
Tracking-Issue: ElementsProject/lightning#3998
v2 channel open uses a different method to derive the channel_id, so now
we save it to the database so that we dont have to remember how to
derive it for each.
includes a migration for existing channels
fundpsbt / utxopsbt create a (typically) output-less PSBT,
however for elements we require the fees to be encapsulated in an
output.
this patch updates fundpsbt / utxopsbt to add a fee output for elements
transactions. includes test updates.
Fixes#3998
Too trivial a fix to really list in Changelog, but I noticed that we
specified "wumbo" twice. We should really just use the proper name
in listconfigs.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Deprecated: plugin: `bcli` replacements should note that `sendrawtransaction` now has a second required Boolean argument, `allowhighfees`, which if `true`, means ignore any fee limits and just broadcast the transaction. Use `--deprecated-apis` to use older `bcli` replacement plugins that only support a single argument.
I screwed up the rotation logic in an earlier varient of this PR, and
it lead me to discover why test_mpp_interference_2 was flaky.
Really, we should keep a fuzzy estimator of how much payment is
outstanding, but in practice rotation is probably good enough.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This removes the reservation cleanup at startup, too, now they're all
using 'reserved_til'.
This changes test_withdraw, since it asserted that outputs were marked
spent as soon as we broadcast a transaction: now they're reserved until
it's mined. Similarly, test_addfunds_from_block assumed we'd see funds
as soon as we broadcast the tx.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Changed: JSON-RPC: `withdraw` now randomizes input and output order, not BIP69.
niftynei
Rusty Russell
Christian Decker
Jan Sarenik
Michael Schmoock
Vincenzo Palazzo
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