This demonstrates a number of issues reported by Carla: no surprise
since there was no test!
(We create a one-hop blinded path when we only have private channels).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Our fetchinvoice always creates a reply path which terminates at their peer,
so we need a dev overrride for that.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
The feerate security margin is a multiplicative factor applied to the
feerate of some transactions in order to guarantee that the
transaction remains publishable and has a sufficient chance of being
confirmed, that we can base some of our decisions on that.
The multiplicative factor is >=1 and was so far a constant 2. This
might have been sensible in the low-fee environment, where the fees
are expected to oscillate, and almost guaranteeing that we will
eventually have rising feerates but in high-fee environments that is
no longer the case, and the 100% margin that the multiplicator 2
brings is excessive. We therefore opt to start out with 100%, then
linearly interpolate up to a given maxfeerate (which does not have to
be a real feerate ever reached, it just indicates the feerate after
which we apply the constant 10% margin.
Fixes#6974Closes#6976
[Fixed up all the other changes required, including spendable calcualtion
comments and unit test and pytest tests --RR]
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-EXPERIMENTAL: offers: we now understand blinded paths which use a short-channel-id(+direction) as entry point.
We don't actually support it yet, but this threads through the type change,
puts it in "decode" etc.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
And deprecate the --max-locktime-blocks which allows them to set it.
Hilariously, the spec misspells CLTV as CTLV at one point, so we work around it for now.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We expect:
UNUSUAL.*WARNING: we have 1 channels but can file descriptors limited to 65536
We get:
lightningd: WARNING: we have 1 channels but can file descriptors limited to 32768!
This is strange, since the first line is from Python's hard limit. Presumably something is restricting the fd limit of children
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
1024 is a common limit, and people are starting to hit that many channels, so we should increase it: twice the number of channels seems reasonable, though we only do this at restart time.
Changelog-Changed: lightningd: we now try to increase the number of file descriptors, if it's less than twice the number of channels at startup (and log if we cannot!).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Listpeerchannels would update the local channel information setting the
liquidity in the outgoing channel to known_min=known_max=capacity,
when in fact it should be known_min=known_max=spendable.
This didn't trigger the bug, but worth explicitly testing: we spend a
to-remote output from a previous unilateral close, to spend an anchor
on a current unilateral close.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We wire through --dev options into the hsmd, and test preapprove accept and deby
with both old and new protocols.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Now we can check that the setconfig would actually parse. We do this
by handing NULL to the calback to indicate it's a test, which may not
work in general but works for now.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Added: `check` `setconfig` now checks that the new config setting would be valid.
We need to pass through setconfig in check mode, then we need to have libplugin
add (and use!) a `check_only` parameter to all option setting.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Added: JSON-RPC: `check` `setconfig` on plugin options can now check the config value would be accepted.
Without this, everything came out as level INFO.
Changelog-Fixed: pyln-client: Fix Plugin.notify_message() not to ignore `level` parameter.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This test reproduces a bug in the `cln-plugin`-crate.
Core Lightning supports a wildcard `*` that plugins can use to
subscribe to all notifications.
However, `cln-plugin` does not support this case.
It allows the developer to subscribe `*`.
But the plug-in crashes when the first notification is received
Uncommited channels are missing several fields which would normally be
populated by an active channel. This simply skips them for the purposes
of finding a route. The particular culprit was:
{
"peer_id": "038cd9f3679d5b39bb2105978467918d549572de472f07dd729e37c7a6377d41d5",
"peer_connected": true,
"state": "OPENINGD",
"owner": "lightning_openingd",
"opener": "local",
"to_us_msat": 8317559000,
"total_msat": 8317559000,
"features": [
"option_static_remotekey",
"option_anchors_zero_fee_htlc_tx"
]
}
Fixes#7197 - SEGV in direct_pay_listpeerchannels when field private missing
Changelog-Fixed: Fixed crash in pay plugin caused by parsing uncommitted dual open channels
Changelog-Changed: Plugins: bcli: Add a path that tries to fetch blocks
from a peer if we can not find them locally.
Signed-off-by: Peter Neuroth <pet.v.ne@gmail.com>
Rather than `allow_broken_log`, we have `broken_log` which is a regex
indicating what log lines are expected. This tightens our tests
significantly, as it will catch *unexpected* brokenness.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Apparently NixOS didn't have Python (sometimes!) so let's not assume.
By reusing the JSON "parsing" code from cowsay, we can self-disable
to handle this case.
Reported-by: Shahana Farooqui <shahana.farooqui@gmail.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Fixed: Plugins: `clnrest` now correctly self-disables if Python not present at all.
Tests whether we're able to route around a low-fee channel in the graph. We
should be able to find the more expensive route if the cheaper route is
depleted.
In the Min. Cost Flow solver we put a constraint on arcs capacities,
such that the total flow that can be allocated through a channel does
not exceed htlc_max. This solves two previous problem of the htlc_max
constraint at the MCF level.
Add spendable/receivable and is_local fields to the callback function
used in gossmods_from_listpeerchannels. This allows to do more fine
grained use of the listpeerchannels call.
The first use case is renepay, for which we need to ignore the htlc_max
of the local channels only.
I was trying to debug test_zeroconf_open and getting very confused.
The reason: l0 is lightning-1, l1 is lightning-2, etc! And there are
two other tests where an l0 has been added at the front: fix them all
to avoid future confusion!
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This allows for faster startup for Greenlight. We still require full sync
before *incoming* htlcs, and onchain operations.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
