Commit Graph

176 Commits

Author SHA1 Message Date
Christian Decker 9a2a09efd6 plugin: Introduce plugin type to allow singleton and chaining
The newly introduced type is used to determine what the call semantics of the
hook are. We have `single` corresponding to the old behavior, as well as
`chain` which allows multiple plugins to register for the hook, and they are
then called sequentially (if all plugins return `{"result": "continue"}`) or
exit the chain if the hook event was handled.
2020-02-11 15:57:22 +10:30
Christian Decker ccec64d63c peer: Add custommsg hook and wire it into channeld and openingd 2020-01-28 23:50:52 +01:00
Christian Decker 8d29338fe3 subd: Add a helper to get the current owning subd for a given peer
This is currently in opening_control since that's the only part that has
access to the uncommitted_channel internals. Otherwise it's independent from
the specific daemon.
2020-01-28 23:50:52 +01:00
Christian Decker a8fa55d275 wire: Add common messages that are independent of daemons
These messages may be exchanged between the master and any daemon. For now
these are just the daemons that a peer may be attached to at any time since
the first example of this is the custommsg infrastructure.
2020-01-28 23:50:52 +01:00
Vasil Dimov 11da88a281 common: add 2 specific error codes wrt funding
Add "peer not connected" and "unknown peer" as error codes, so that
users can check against numeric error codes instead of textual error
messages.

Will ease https://github.com/ElementsProject/lightning/issues/3366

Changelog-None
2020-01-21 12:49:33 +08:00
Vasil Dimov 2ea91f834c Add the missing space between "if" and "("
Changelog-None
2020-01-06 12:57:59 +01:00
lisa neigut 689dd28ddd funding: enable push_msat
it's that time of year (merry xmas!)

enables the ability to push_msat on fundchannel

Changelog-Added: RPC: `fundchannel` and `fundchannel_start` can now accept an optional parameter, `push_msat`, which will gift that amount of satoshis to the peer at channel open.
2019-12-24 12:04:01 -06:00
Rusty Russell 72aa315b5e lightningd: save the fee_states into the database.
This is the final step: we pass the complete fee_states to and from
channeld.

Changelog-Fixed: "Bad commitment signature" closing channels when we sent back-to-back update_fee messages across multiple reconnects.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-12-12 22:15:48 +01:00
Rusty Russell 5673607ebc lightningd: don't use chainparams before param() call in json_fund_channel_start
With coming changes, this will segfault if we access it when param
code is trying to get usage from functions.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-11-23 22:42:34 +00:00
lisa neigut de16d0f0b4 openchannel hook: add new `close_to` field
Rounds out the application of `upfront_shutdown_script`, allowing
an accepting node to specify a close_to address.

Prior to this, only the opening node could specify one.

Changelog-Added: Plugins: Allow the 'accepter' to specify an upfront_shutdown_script for a channel via a `close_to` field in the openchannel hook result
2019-11-22 00:41:15 +00:00
Rusty Russell 709c98f539 logging: remove spaces from subsystem names.
Spaces just make life a little harder for everyone.

(Plus, fix documentation: it's 'jsonrpc' not 'json' subsystem).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-11-18 04:50:22 +00:00
Rusty Russell ef7a820ab1 log: make formatting more consistent.
1. Printed form is always "[<nodeid>-]<prefix>: <string>"
2. "jcon fd %i" becomes "jsonrpc #%i".
3. "jsonrpc" log is only used once, and is removed.
4. "database" log prefix is use for db accesses.
5. "lightningd(%i)" becomes simply "lightningd" without the pid.
6. The "lightningd_" prefix is stripped from subd log prefixes, and pid removed.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-changed: Logging: formatting made uniform: [NODEID-]SUBSYSTEM: MESSAGE
Changelog-removed: `lightning_` prefixes removed from subdaemon names, including in listpeers `owner` field.
2019-11-18 04:50:22 +00:00
Rusty Russell 86fb54a33b lightningd: remove per-peer log book.
We had a separate logbook for each peer, and copy log entries above
the printable log level into the master logbook.  This didn't always
work well, since we didn't dump it on crash for example.

Keep a single global logbook instead, and remove this infrastructure.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-11-18 04:50:22 +00:00
Rusty Russell e433d4ddc1 lightningd: have logging include an optional node_id for each entry.
A log can have a default node_id, which can be overridden on a per-entry
basis.  This changes the format of logging, so some tests need rework.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-11-18 04:50:22 +00:00
Rusty Russell 4fa7b30836 lightningd: have optional node_id associated with subdaemons.
We'll use this for logging it.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-11-18 04:50:22 +00:00
darosior f075b87137 bitcoind: remove the chainparams member
We now have a global constant, prefer to use it instead of having
two variables with the same utility.
2019-11-15 13:14:08 +01:00
lisa neigut 28cdccfb11 dev: add option flag for specifying temporary channel id
--dev-force-tmp-channel-id flag takes a 64-character hex string
to use as the temporary channel id. Useful for spec tests

[ Fixed crash in non-DEVELOPER mode --RR ]
Changelog-None
2019-11-13 05:51:02 +00:00
lisa neigut 963a1da958 addr: handle P2SH/P2PKH in scriptpubkey encoding
Previously, returned null if a scriptpubkey was not Segwit; now
handles encoding to Base58 for other types.
2019-11-13 03:31:20 +00:00
lisa neigut 422b4502d3 funding: add RPC arg to specify a 'close_to' address
Takes advantage of upfront-shutdown-script to permit users to
specify the close-to address for a channel at open, by adding
a `close_to` field to `fundchannel_start`.

Note that this only is in effect if `fundchannel_start` returns
with `close_to` set -- otherwise, peer doesn't
support `option_upfront_shutdown_script`.
2019-10-15 19:10:05 +02:00
Rusty Russell bd55f6d940
common/features: only support a single feature bitset.
This is mainly an internal-only change, especially since we don't
offer any globalfeatures.

However, LND (as of next release) will offer global features, and also
expect option_static_remotekey to be a *global* feature.  So we send
our (merged) feature bitset as both global and local in init, and fold
those bitsets together when we get an init msg.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-10-11 02:52:04 +00:00
lisa neigut c6338573d6 nits: align codes 2019-10-10 05:57:45 +00:00
trueptolemy 71b606e050 lightningd: Add a new field `shutdown_scriptpubkey[NUM_SIDES]`
`shutdown_scriptpubkey[REMOTE]` is original remote_shutdown_scriptpubkey;
`shutdown_scriptpubkey[LOCAL]` is the script used for "to-local" output when `close`. Add the default is generated form `final_key_idx`;

Store `shutdown_scriptpubkey[LOCAL]` into wallet;
2019-10-09 21:04:16 -05:00
trueptolemy d149ba2f3a JSON-API: `fundchannel_start` uses `amount` fieldname to replace `satoshi` 2019-10-09 16:51:42 -05:00
Christian Decker ef7a63d8f8 elements: Move from a global is_elements to a global chainparams
We now have a pointer to chainparams, that fails valgrind if we do anything
chain-specific before setting it.

Suggested-by: Rusty Russell <@rustyrussell>
2019-10-03 04:32:57 +00:00
Rusty Russell 15612d269a Make option_static_remotekey non-EXPERIMENTAL now it's in spec.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-09-30 01:50:44 +00:00
Rusty Russell 147eaced2e developer: consolidiate gossip timing options into one --dev-fast-gossip.
It's generally clearer to have simple hardcoded numbers with an
#if DEVELOPER around it, than apparent variables which aren't, really.

Interestingly, our pruning test was always kinda broken: we have to pass
two cycles, since l2 will refresh the channel once to avoid pruning.

Do the more obvious thing, and cut the network in half and check that
l1 and l3 time out.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-09-20 06:55:00 +00:00
lisa neigut a35677fa0f fundchannel: use plugin; delete interior impl
Switch over to using the fundchannel plugin.
2019-09-11 23:56:27 +00:00
lisa neigut b1f05795a8 rpc: have fundchannel_start also return scriptpubkey
Easier to pass it back than dig it out of the address, since we
have it. Needed for extracting fundchannel
2019-09-11 23:56:27 +00:00
trueptolemy 6c708b5854 API: `fundchannel_cancel` can cancel fundchannel process before funding broadcast 2019-09-11 17:04:14 -05:00
Rusty Russell 226e2aee48 option_static_remotekey: update to latest draft.
531c8d7d9b

In this one, we always send my_current_per_commitment_point, though it's
ignored.  And we have our official feature numbers.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-09-10 16:18:25 -05:00
Rusty Russell 87f0ee6351 channeld: set option_static_remotekey when negotiated.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-09-10 16:18:25 -05:00
Rusty Russell 11ee089d4b db: store option_static_remotekey for each channel.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-09-10 16:18:25 -05:00
Rusty Russell ca28c30eff funding: don't allow funding new channels until we're synced.
This is probably worth preventing.

1. Our depth estimate would be inaccurate possibly leading to us
   timing out too early.
2. If we're not up-to-date our onchain funds are unknown.
3. We wouldn't be able to send or receive HTLCs until we're synced anyway.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-08-10 22:09:09 +02:00
Rusty Russell 710d015e5b lightningd: fix crash when peer disconnects after fundchannel_start, before cancel/complete
Fixes: #2831
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-08-09 10:57:42 +02:00
Rene Pickhardt 8e7428da53 Added possibility to configure max_concurrent_htlcs value for our channels. Eclaire has a default of 30 and I thought why not going with their value and while doing so make it configureable. 2019-08-09 05:45:06 +00:00
Christian Decker 5dff67900e tx: Add chainparams when deserializing transactions from wire msgs
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>
2019-07-31 23:22:54 +00:00
Christian Decker 9288a7906b tx: Add chainparams to struct bitcoin_tx as context
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>
2019-07-31 23:22:54 +00:00
darosior 736651ba43 lightningd/notification: add 'channel_opened' notification
This notification is sent when a peer succesfully opens a channel to us
2019-07-27 12:18:25 +02:00
Rusty Russell dd79813a75 common: add peer_error flag to treat this error as "soft".
The spec says to close the channel if they send us an error, but we
need to be more lenient to preserve channels with other
implementations.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-07-26 03:53:03 +00:00
lisa neigut 4638995037 tests: log funder_faileds as unusual not broken
test_funding_cancel_race explicitly attempts to trigger this via a race
condition; this conflicts with our post-test checks that no broken
logs were logged. as a middle ground, we log it as unusual, not broken,
as it's possible for it to attempt to fail if it was begun at the same
time as the complete is.
2019-07-09 04:18:48 +00:00
Rusty Russell 9fdcb1a122 openingd: remove unnecessary is_err flag.
It probably doesn't matter to "fundchannel_cancel" exactly why the
fundchannel didn't work (though it can read the error msg), and we
should always fail any pending fundchannel_complete command.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-07-08 15:14:31 +00:00
Rusty Russell 280bd60988 lightningd: allow multiple cancels on a single fundchannel command.
Instead of taking over the ->cmd pointer, append ourselves to a list
of cancels.  This fixes the test_funding_cancel_race.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-07-08 15:14:31 +00:00
Rusty Russell 4b1a300ee3 lightningd: fix fundchannel_complete race.
If we already have a fundchannel_complete, don't attach another one.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-07-08 15:14:31 +00:00
Rusty Russell e9ff8e4b4e openingd_control: fix merge error with json_stream_success.
That was changed to start the response object, which broke the openingd
code once we merged.

Of course, I should have *renamed it* when I changed the semantic!

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-06-12 06:21:53 +00:00
Rusty Russell 4c118bcdba openingd: fix compile error caused by merge.
Compile broke because we were using low-level JSON primitives here
(which, incidentally, would produce bad JSON now, since we can't just
put a raw string inside an object!).

Use json_add_string, which also has the benefit of escaping JSON
for us.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-06-12 06:21:53 +00:00
lisa neigut c00e0d2936 funding: rename fundchannel_continue -> _complete
Renaming. "complete" more accurately describes what we're doing here.
2019-06-12 02:22:43 +00:00
lisa neigut 5aad642c59 opening: add fundchannel_cancel command
Provide the option to cancel a funding-opening with a peer.
Must either call `fundchannel_cancel` or `fundchannel_continue`
2019-06-12 02:22:43 +00:00
lisa neigut 478762dbd2 funding: wire up funding_continue
Big wiring re-org for funding-continue

In openingd, we move the 'persistent' state (their basepoints,
pubkey, and the minimum_depth requirement for the opening tx) into
the state object. We also look to keep code-reuse between
'continue' and normal 'fundchannel' as high as possible. Both
of these call the same 'fundchannel_reply' at the end.

In opening_control.c, we remap fundchannel_reply such that it is
now aware of the difference between an external/internally funded
channel open. It's the same return path, with the difference that
one finishes making and broadcasting the funding transaction; the
other is skips this.
2019-06-12 02:22:43 +00:00
lisa neigut 8a60caaed9 funding: add a 'inflight' marker
We need a way to gate allowing continue to proceed or not
2019-06-12 02:22:43 +00:00
lisa neigut 7ea21c36b1 fundchannel: add txout field to RPC/API
We'll need the outpoint for the funding output.
2019-06-12 02:22:43 +00:00