This is the other origin, besides `bitcoin_tx`, where we create `bitcoin_tx`
instances, so add the context as soon as possible. Sadly I can't weave the
chainparams into the deserialization code since that'd need to change all the
generated wire code as well.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
We normally reconnect after 1 second: have a flag to say wait for
60. This will be used in the next patch which handles "soft" errors.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Header from folded patch 'channel_fail_transient_slowretry.patch':
fixup! lightningd: add slow_reconnect flag for transient failure.
@ZmnSCPxj points out that function is unsafe, since omitting the bool
parameter still compiled. Make it two separate functions, each
with a distinctive name so every caller has to be fixed.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
There's only one caller which used the flag.
As a side-effect, now we'll try reconnect even if the previous owner
was NULL (which mainly effects the case where we couldn't create the subd).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
And clean up some dev ones which actually happen (mainly by calling
channel_fail_permanent which logs UNUSUAL, rather than
channel_internal_error which logs BROKEN).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Since we now have a couple of long-lived dependents it is time we stop
removing channels from the table once they are fully closed, and instead just
mark them as closed. This allows us to keep forwards and transactions foreign
keys intact, and it may help us debug things after the fact.
Fixes#2028
Signed-off-by: Christian Decker <decker.christian@gmail.com>
This takes the guesswork out of `drop_to_chain` and allows us to annotate the
last_tx consistently.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
Instead of lightningd telling us when it's ready, we ask it.
This also provides an opportunity to have a plugin hook at this point.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
I tried to just do gossipd, but it was uncontainable, so this ended up being
a complete sweep.
We didn't get much space saving in gossipd, even though we should save
24 bytes per node.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
- Intrduce DB update `channel` values: `feerate_base` and `feerate_ppm`
- Make fist use of now context realted DB migration
- Add `struct channel` members of the same name
- Use struct values instead of config when commiting new channels
As a side-effect of using amount_msat in gossipd/routing.c, we explicitly
handle overflows and don't need to pre-prune ridiculous-fee channels.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This is prep work for when we sign htlc txs with
SIGHASH_SINGLE|SIGHASH_ANYONECANPAY.
We still deal with raw signatures for the htlc txs at the moment, since
we send them like that across the wire, and changing that was simply too
painful (for the moment?).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We split json_invoice(), as it now needs to round-trip to the gossipd,
and uniqueness checks need to happen *after* gossipd replies to avoid
a race.
For every candidate channel gossipd gives us, we check that it's in
state NORMAL (not shutting down, not still waiting for lockin), that
it's connected, and that it has capacity. We then choose one with
probability weighted by excess capacity, so larger channels are more
likely.
As a side effect of this, we can tell if an invoice is unpayble (no
channels have sufficient incoming capacity) or difficuly (no *online*
channels have sufficient capacity), so we add those warnings.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
That matches the other CSV names (HSM was the first, so it was written
before the pattern emerged).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
When in this state, we send a canned error "Awaiting unilateral close".
We enter this both when we drop to chain, and when we're trying to get
them to drop to chain due to option_data_loss_protect.
As this state (unlike channel errors) is saved to the database, it means
we will *never* talk to a peer again in this state, so they can't
confuse us.
Since we set this state in channel_fail_permanent() (which is the only
place we call drop_to_chain for a unilateral close), we don't need to
save to the db: channel_set_state() does that for us.
This state change has a subtle effect: we return WIRE_UNKNOWN_NEXT_PEER
instead of WIRE_TEMPORARY_CHANNEL_FAILURE as soon as we get a failure
with a peer. To provoke a temporary failure in test_pay_disconnect we
take the node offline.
Reported-by: Christian Decker @cdecker
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This means we don't try to unilaterally close after a restart, *and*
we can tell onchaind to try to use the point to recover funds when the
peer unilaterally closes.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
For option_data_loss_protect, the peer can prove to us that it's ahead;
it gives us the (hopefully honest!) per_commitment_point it will use,
and we make sure we don't broadcast the commitment transaction we have.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Include it as an optional field in the connect_to_peer message (it was
added before we had optional fields).
The only issue is that reconnects want it too, so again connectd hands
it back to master in connectctl_connect_failed.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
connectd tells master about every disconnection, and master knows
whether it's important to reconnect. Just get the master to invoke a new
connect command if it considers the peer important!
The only twist is timeouts: we don't want to immediately reconnect if
we've failed to connect. To solve this, connectd passes a 'delaytime'
to the master when a connection fails, and the master passes it back
when it asks for a connection.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Previously master would fail once the channel has been negotiated,
which is terrible, since the funder will have already broadcast tx.
Now we tell them if we have an active channel, and update if it goes away.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This patch guts gossipd of all peer-related functionality, and hands
all the peer-related requests to channeld instead.
gossipd now gets the final announcable addresses in its init msg, since
it doesn't handle socket binding any more.
lightningd now actually starts connectd, and activates it. The init
messages for both gossipd and connectd still contain redundant fields
which need cleaning up.
There are shims to handle the fact that connectd's wire messages are
still (mostly) gossipd messages.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We're telling gossipd about disconnections anyway, so let's just use that signal
to disable both sides of the channel.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
Currently we intuit it from the fd being closed, but that may happen out
of order with when the master thinks it's dead.
So now if the gossip fd closes we just ignore it, and we'll get a
notification from the master when the peer is disconnected.
The notification is slightly ugly in that we have to disable it for
a channel when we manually hand the channel back to gossipd.
Note: as stands, this is racy with reconnects. See the next patch.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
And on channel_fail_permanent and closing (the two places we drop to
chain), we tell gossipd it's no longer important.
Fixes: #1316
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Since we reference the channel ID to allow cascades in the database we also need
the ability to look up a channel by its database ID.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
Also report tx and txid, and whether we closed unilaterally or
bilaterally, if we could close the channel.
Also make a manpage.
Fixes: #1207Fixes: #714Fixes: #622
So we know how much counterparty could theoretically steal from us
(msatoshi_to_us - msatoshi_to_us_min) and how much we could
theoretically steal from counterparty (msatoshi_to_us_max -
msatoshi_to_us).
For more piloting goodness.
If we're going to simply take() a pointer, don't allocate it off a random
object. Using NULL makes our intent clear, particularly with allocating
packets we're going to take() onto a queue.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This simplifies things, and means it's always in the database. Our
previous approach to creating it on the fly had holes when it was
created for onchaind, causing us to use another every time we
restarted.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Let's have a simple function that allows us to check whether a channel
still has an HTLC open.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
Use NULL on the callback to mean "clear the slot", and call it.
We have do this in two places: the old daemon might die, or the new
daemon might start first.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Each state (effectively, each daemon) has two slots: a permanent slot
if something permanent happens (usually, a failure), and a transient
slot which summarizes what's happening right now.
Uncommitted channels only have a transient slot, by their very nature.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
In #1018 we got no information, except "Internal error". At least
if we tell the other side what went wrong, we're more likely to get
an answer.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
And now we can finally do the db upgrade to remove any OPENINGD
channels once, since we never put them back.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Christian Decker
Rusty Russell
ZmnSCPxj
Michael Schmoock
practicalswift