We usually have access to `ld`, so avoid the global.
The only place generic code needs it is for the json command struct,
and that already has accessors: add one for libplugin and lightningd
to tell it if deprecated apis are OK.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
In most cases, it's the same as option_anchor_outputs, but for
fees it's different. This transformation is the simplest:
pass it as a pair, and test it explicitly.
In future we could rationalize some paths, but this was nice
and mechanical.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Since we can CPFP, we don't have to track the feerate as closely. But
it still needs to get in the mempool, so we use 10 sat/byte, or the
100 block estimate if that is higher.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Added: JSON-RPC: `feerates` has new fields `unilateral_anchor_close` to show the feerate used for anchor channels (currently experimental), and `unilateral_close_nonanchor_satoshis`.
Changelog-Changed: JSON-RPC: `feerates` `unilateral_close_satoshis` now assumes anchor channels if enabled (currently experimental).
We don't actually use it anywhere, but we actually want to now for
CPFP. So give it more parameters and make it return bool so it can
be set without necessarily suppressing rexmit.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Now we wire in the code which gathers configvars and parses from there;
lightningd keeps the array of configuration variables for future use.
Note that lightning-cli also needs to read the config, but it has its
own options (including short ones!) and doesn't want to use this
configvar mechanism, so we have a different API for that now.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
And consolidate descriptions into lightning-feerates().
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Added: JSON-RPC: `close`, `fundchannel`, `fundpsbt`, `multifundchannel`, `multiwithdraw`, `txprepare`, `upgradewallet`, `withdraw` now allow "minimum" and NN"blocks" as `feerate` (`feerange` for `close`).
Drop try_get_feerate() in favor of explicit feerate_for_deadline() and
smoothed_feerate_for_deadline().
This shows us everywhere we deal with old-style feerates by names.
`delayed_to_us` and `htlc_resolution` will be moving to dynamic fees,
so deprecate those.
Note that "penalty" is still used for generating penalty txs for
watchtowers, and "unilateral_close" still used until we get zero-fee
anchors.
Changelog-Added: JSON-RPC: `feerates` `estimates` array shows fee estimates by blockcount from underlying plugin (usually *bcli*).
Changelog-Changed: JSON-RPC: `close`, `fundchannel`, `fundpsbt`, `multifundchannel`, `multiwithdraw`, `txprepare`, `upgradewallet`, `withdraw` `feerate` (`feerange` for `close`) value *slow* is now 100 block-estimate, not half of 100-block estimate.
Changelog-Deprecated: JSON-RPC: `close`, `fundchannel`, `fundpsbt`, `multifundchannel`, `multiwithdraw`, `txprepare`, `upgradewallet`, `withdraw` `feerate` (`feerange` for `close`) expressed as, "delayed_to_us", "htlc_resolution", "max_acceptable" or "min_acceptable". Use explicit block counts or *slow*/*normal*/*urgent*/*minimum*.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Fun story. We're changing onchaind to hand txs to us, and we will
construct them and do the broadcast for it. lightningd tells onchaind
the witness it used (with flags to indicate which fields were
signatures so should be ignored) so onchaind can recognize the tx
when/if it is mined.
And when onchaind was waiting for a CLTV delay, it wouldn't tell
lightningd yet, but wait until the parent was sufficiently deep
But this caused bugs!
In particular, on replay, onchaind would see transactions which it
hasn't sent yet. This was not a problem before, as onchaind had
created the tx, even if it hadn't told lightningd to broadcast it, so
recognized the variant when it came in. When we're relying on
lightningd to tell us what the tx will look like, this doesn't work
any more.
The cause of this is that we fire off txowatches ("this output was
spent!") while we process blocks, and only fire off txwatches ("this
tx increased depth") once all the current blocks are processed. Often
this didn't matter, since we replay messages to onchaind from the
database, *but* we trim the last few blocks on restart (or, if there's
a small reorg while we're stopped), and we can hit this misordering.
Changing our topology code to only ever process one block at a time
would be a solution, but slows down catchup (and tests, where we often
mine a run of blocks).
So, this seems like a premature optimization, but it's really
required! And in future, lightningd can use this knowledge of pending
transactions to combine them in more clever ways.
Note that if a tx is valid at block N, we broadcast it once we see
block N-1, to get it in the mempool for block N.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
At the moment only lightingd needs it, and this avoids missing any
places where we do bip32 derivation.
This uses a hsm capability to mean we're backwards compatible with older
hsmds.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Added: Protocol: we now always double-check bitcoin addresses are correct (no memory errors!) before issuing them.
It's needed as the db and wallet is being set up (db migrations), so
it's simpler this way to always use ld->bip32_base for the next patch.
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
We didn't actually populate them properly, and the real annotations
are on inputs and outputs.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-EXPERIMENTAL: JSON-RPC: `listtransactions` `channel` and `type` field removed at top level.
Also, we don't need to pass the total length to the field parsers,
just the length for this field (confusingly, this was called
"data_length").
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
After connecting 100,000 peers with one channel each (not all at
once!), we see various places where we exhibit O(N^2) behaviour.
Fix these by keeping a map of id->peer instead of a simple
linked-list.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We're soon going to call json_add_unsaved_channel and
json_add_uncommitted_channel from a new place, where we want the peer
state directly included.
Based on patch by @vincenzopalazzo.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This was found by tests/test_plugin.py::test_important_plugin and
was NOT a flake!
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-None: only just committed
I know this is an unforgivably large diff, but the spec has changed so
much that most of this amounts to a rewrite.
Some points:
* We no longer have "offer_id" fields, we generate that locally, as all
offer fields are mirrored into invoice_request and then invoice.
* Because of that mirroring, field names all have explicit offer/invreq/invoice
prefixes.
* The `refund_for` fields have been removed from spec: will re-add locally later.
* quantity_min was removed, max == 0 now mean "must specify a quantity".
* I have put recurrence fields back in locally.
This brings us to 655df03d8729c0918bdacac99eb13fdb0ee93345 ("BOLT 12:
add explicit invoice_node_id.")
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
The "path" is just a message to ourselves. This meets the minimal
requirement for bolt12 invoices: that there be a blinded path (at
least so we can use the path_id inside in place of "payment_secret").
We expose the method to make this path_id to a common routine: offers
will need this for generating more sophisticated paths.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This allows GDB to print values, but also allows us to use them in
'case' statements. This wasn't allowed before because they're not
constant terms.
This also made it clear there's a clash between two error codes,
so move one.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Changed: JSON-RPC: Error code from bcli plugin changed from 400 to 500.
First, merge the _ahf_ and non-ahf interfaces.
Second, remove the always-NULL txs->cmd field.
Then, add optional id_prefix for bitcoind_sendrawx, so if it's
triggered by a command (e.g. "withdraw") it's shown correctly in logs.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Usually the calls are spontanous, so it's just "cln:<method>#NNN", but
json_invoice() calls listincoming, and json_checkmessage calls
listnodes, so those become "cli:invoice-<pid>/cln:listincoming#NNN".
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
Be more graceful in shutting down: this should fix the issue where
bookkeeper gets upset that its commands are rejected during shutdown,
and generally make things more graceful.
1. Stop any new RPC connections.
2. Stop any per-peer daemons (channeld, etc).
3. Shut down plugins.
4. Stop all existing RPC connections.
5. Stop global daemons.
6. Free up peer, chanen HTLC datastructures.
7. Close database.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Changed: Plugins: RPC operations are now still available during shutdown.
We annotate them with UNNEEDED, which is legal but weird, but it
makes gcc (at least 11.2.0) complain about shadowing:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106424
I simply removed the names.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Again, we should use the real channel_type, but we approximate.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Added: Protocol: private channels will only route using short-channel-ids if channel opened with option_scid_alias-supporting peer.
We used to tell connectd to remember our connect delay, and hand it
back (increased if necessary).
Instead, simply record when we last tried to connect. If it was less
than 10 minutes ago, double delay (up to 5 minutes max), otherwise
reset delay to 1 second.
This covers all scenarios: whether we reconnect then immediately
disconnect, or never successfully connect, it doesn't matter.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Fixes: #5453
If you get the wrong hsm_secret, your node_id will change, and
peers won't know who you are, bitcoind will reject your transaction
signatures, and other madness.
Catch this as soon as it happens, by storing our node_id in the db.
Suggested-by: @cdecker, @fiatjaf
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Changed: Config: `lightningd` will refuse to start with the wrong node_id (i.e. hsm_secret changes).
The only places which should call try_reconnect now are the "connect"
command, and the disconnect path when it decides there's still an
active channel.
This introduces one subtlety: if we disconnect when there's no active
channel, but then the subd makes one, we have to catch that case!
This temporarily reverts "slow" reconnections to fast ones: see next
patch.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Connectd already does this when we *receive* an error or warning, but
now do it on send. This causes some slight behavior change: we don't
disconnect when we close a channel, for example (our behaviour here
has been inconsistent across versions, depending on the code).
When connectd is told to disconnect, it now does so immediately, and
doesn't wait for subds to drain etc. That simplifies the manual
disconnect case, which now cleans up as it would from any other
disconnection when connectd says it's disconnected.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
