We're not using the change_outnum for withdraw tx's (and the way
we were calculating it was broken as of the addition of 'multiple
outputs'). This removes the change output knowhow from withdraw_tx
entirely, and pushes the responsibility up to the caller to
include the change output in the output set if desired.
Consequently, we also remove the change output knowhow from hsmd.
Currently 'listfunds' lies, a teensy eeinsy bit, in that it doesn't list
all of the funds in a wallet (it omits reserved wallet UTXOs). This
change makes the reserved outputs visible by listing them in the
'outputs' section along with a new field, 'reserved', which denotes the
UTXO's state
Changelog-Changed: JSON-RPC: `listfunds` 'outputs' now includes reserved outputs, designated as 'reserved' = true
This moves the notification for our coin spends from when it's
successfully submited to the mempool to when they're confirmed in a
block.
We also add an 'informational' notice tagged as `spend_track` which
can be used to track which transaction a wallet output was spent in.
Previously we were annotating every movement with the blockheight of
lightningd at notification time. Which is lossy in terms of info, and
won't be helpful for reorg reconciliation. Here we switch over to
logging chain moves iff they've been confirmed.
Next PR will fix this up for withdrawals, which are currently tagged
with a blockheight of zero, since we log on successful send.
We kept track of an URGENT, a NORMAL, and a SLOW feerate. They were used
for opening (NORMAL), mutual (NORMAL), UNILATERAL (URGENT) transactions
as well as minimum and maximum estimations, and onchain resolution.
We now keep track of more fine-grained feerates:
- `opening` used for funding and also misc transactions
- `mutual_close` used for the mutual close transaction
- `unilateral_close` used for unilateral close (commitment transactions)
- `delayed_to_us` used for resolving our output from our unilateral close
- `htlc_resolution` used for resolving onchain HTLCs
- `penalty` used for resolving revoked transactions
We don't modify our requests to our Bitcoin backend, as the next commit
will batch them !
Changelog-deprecated: The "urgent", "slow", and "normal" field of the `feerates` command are now deprecated.
Changelog-added: The fields "opening", "mutual_close", "unilateral_close", "delayed_to_us", "htlc_resolution" and "penalty" have been added to the `feerates` command.
This sets the nLockTime to the tip (and accordingly each input's nSequence to
0xfffffffe) for withdrawal transactions.
Even if the anti fee-sniping argument might not be valid until some time yet,
this makes our regular wallet transactions far less distinguishable from
bitcoind's ones since it now defaults to using native Segwit transactions
(like us). Moreover other wallets are likely to implement this (if they
haven't already).
Changelog-Added: wallet: withdrawal transactions now sets nlocktime to the current tip.
Our policy is generally to omit fields which aren't sensible.
Also, @niftynei points out the spacing in for loops.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This triple join should be efficient to read, and to process. We have a
one-to-many (tx-to-annotations), followed by a
one-to-one (annotation-to-channel) join, so we are limited to annotations x
transactions results.
This avoids having to correlate with listpeers for the most pertinent
information.
This API predates plugins, otherwise we'd have listutxos and listpeers
and this would simply combine them appropriately. Still, it exists so
there's little reason not to make it more friendly.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Allow a user to select the utxo set that will be added to a
transaction, via the `utxos` parameter. Optional.
Format for utxos should be of the form ["txid:vout","..."]
The withdraw_tx function shouldn't use it, but GCC is right it's uninitialized:
wallet/walletrpc.c: In function ‘json_prepare_tx’:
wallet/walletrpc.c:202:15: error: ‘changekey’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
The way we build transactions, serialize them, and compute fees depends on the
chain we are working on, so let's add some context to the transactions.
Signed-off-by: Christian Decker <decker.christian@gmail.com>
Due to API instability we are disabling the RPC method for this release, but
will re-enable it after the release again.
Signed-off-by: Christian Decker <@cdecker>
We're going to need this for P2WSH scripts. pull it out into
a common file plus adopt the sanity checks so that it will allow for
either P2WSH or P2WPKH (previously only encoded P2WPKH scripts)
"result" should always be an object (so that we can add new fields),
so make that implicit in json_stream_success.
This makes our primitives well-formed: we previously used NULL as our
fieldname when calling the first json_object_start, which is a hack
since we're actually in an object and the fieldname is 'result' (which
was already written by json_object_start).
There were only two cases which didn't do this:
1. dev-memdump returned an array. No API guarantees on this.
2. shutdown returned a string.
I temporarily made shutdown return an empty object, which shouldn't
break anything, but I want to fix that later anyway.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This allows you to prepare a tx, then release or discard it later.
Shares almost all the code with json_withdraw (which is now technically
superfluous).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We currently allocate utxos off cmd, but the next commit will persist a
wtx beyond the command which created it, breaking that assumption.
In general, a struct member should be owned by the struct itself, and
a tal context should be an explicit arg, not implicit.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
We generally want to do as much validation as possible inside
parameter parsing, as that means the 'check' command detects more
erroneous uses. In this case, we can try to interpret the destination
address as soon as we encounter it.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
As a side-effect, we now only add txfilters for addresses we actually
expose, rather than always filtering for both p2sh and native segwit.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
It would always return bech32; fix that, and don't bother printing
it if they use the (new) 'all' parameter.
This API was introduced in 3e67c09d5e,
which means it wasn't in a release so no CHANGELOG entry necessary.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
A new string field is added to the command structure and is specified at the creation of each native command, and in the JSON created by 'json_add_help_command()'.
niftynei
Antoine Poinsot
Vasil Dimov
trueptolemy
Rusty Russell
Christian Decker
Kristaps Kaupe
Jorge Timón