Commit Graph

57 Commits

Author SHA1 Message Date
Christian Decker
a07797c166 features: Add function to unset a featurebit
Needed so we can blank optional bits when comparing channel_types.
2022-07-04 22:14:06 +02:00
Christian Decker
e4511452ac bolt: Reflect the zeroconf featurebits in code 2022-07-04 22:14:06 +02:00
Rusty Russell
e01abf0b34 bolt11: support payment_metadata.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2022-04-02 09:40:18 +10:30
Rusty Russell
9f06a59e3c shutdown: don't allow shutdown to p2pkh or p2sh addresses for anchor outputs.
This doesn't have an effect now (except in experimental mode), but it
will when we support anchors.  So we deprecate the use of those in the
close command too.

For experimental mode we have to avoid using p2pkh; adapt that test.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Deprecated: JSON-RPC: `shutdown` no longer allows p2pkh or p2sh addresses.
2022-04-02 09:40:18 +10:30
Rusty Russell
163d3a16f4 doc: clean up offers bolt quotes
As of 2b923a0367c5f9154fcec706e3302cc4658dd889.

Recurrence quotes need to be marked separately, since they're no longer
in offers main bolt.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-12-01 05:44:28 +10:30
Rusty Russell
894f1841b4 features: don't announce onion_messages in bolt11 invoices.
As noted by Joost.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-12-01 05:44:28 +10:30
Rusty Russell
55dbe82162 features: EXPERIMENTAL_FEATURES: advertize option_quiesce
The latest draft has a feature bit here.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-10-08 16:07:21 +02:00
Rusty Russell
7ef2f4d7fb devtools/features: tool to convert feature bitmap to names.
For example:

```
$ ./devtools/features 80008008226aa2
option_data_loss_protect/odd (optional)
option_upfront_shutdown_script/odd (optional)
option_gossip_queries/odd (optional)
option_var_onion_optin/odd (optional)
option_gossip_queries_ex/odd (optional)
option_static_remotekey/odd (optional)
option_payment_secret/even (compulsory)
option_basic_mpp/odd (optional)
option_anchor_outputs/odd (optional)
option_shutdown_anysegwit/odd (optional)
option_onion_messages/odd (optional)
option_unknown_54/odd (optional)
```


Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-09-23 15:02:05 +02:00
Rusty Russell
6336d39a95 features: renumber from 102/103 to 38/39.
100+ is for experimentation, modern spec practice is to assign feature bits
sequentially as PRs get added, to avoid later renumbering.

Still respect the old bit for now.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-07-03 12:13:45 +09:30
Rusty Russell
29f042daac channeld: handle upgrade match.
We don't actually set desired_type yet, but this handles it.

Changelog-EXPERIMENTAL: Protocol: we can now upgrade old channels to `option_static_remotekey` from https://github.com/lightningnetwork/lightning-rfc/pull/868
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-06-04 16:13:08 +09:30
Rusty Russell
325d33a902 common/features: helper to pretty-print feature bits.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-06-04 16:13:08 +09:30
Rusty Russell
d3f370944e Makefile: update to latest spec.
This includes anysegwit and the updated HTLC tiebreak test vector.  It
also adds explicit wording for invalid per_commitment_secret (which
nicely matches our code already!).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-05-26 20:01:03 +09:30
niftynei
737658503f dual-funding: use correct feature bit number!!
Use designated feature bit, instead of future-bit.
2021-03-25 20:05:11 +10:30
Rusty Russell
cc6d2afe21 Experimental option option_shutdown_wrong_funding: help me, I screwed up!
It's not unheard of for people to give the wrong funding tx to us,
getting their funds stuck.  Interestingly, we can allow mutual close
using a different txid and output number as long as they (solely)
funded the channel, and the channel hasn't been used.

This defines a "play area" feature to do just that.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-03-16 13:08:40 +10:30
Rusty Russell
d0946b75bc common: support opt_shutdown_anysegwit checks (EXPERIMENTAL_FEATURES).
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-03-02 14:42:34 +10:30
Rusty Russell
fc3e679c97 lightningd: control onion messages by experimental-onion-messages option.
Note that this also changes so the feature is not represented in channels,
reflecting the recent drafts.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Added: `experimental-onion-messages` enables send, receive and relay of onion messages.
2021-01-13 14:45:36 +01:00
niftynei
327d9a3ff6 experimental-dual-fund: add config level option for enabling dual-fund
Allow a user to switch on dual-funding without needing to compile
as EXPERIMENTAL_FEATURES.

Doesn't work yet, since everything is still behind
'EXPERIMENTAL_FEATURES' compile time flags... but useful for testing
2021-01-10 13:44:04 +01:00
niftynei
ddc9500a64 features: add 'feature_bit_sub', which will subtract/unset bits
Given a two sets of featurebits, unset the featurebits in the first set
that are set in the second set
2020-10-26 21:31:24 -05:00
niftynei
9c89184c1f dualfund: add feature flag for dual-funding
turn off until we're ready to test both sides
2020-09-09 19:54:20 +09:30
Rusty Russell
6e4e267f2c doc: update BOLT now option_anchor_outputs is merged.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-08-24 20:55:47 +09:30
Rusty Russell
ddb4ee296b features: define option_anchor_outputs.
As specified by https://github.com/lightningnetwork/lightning-rfc/pull/688.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-08-14 11:51:14 +09:30
Rusty Russell
168009c105 features: require dependent features at init handshake.
This simplifies our test matrix, as we never have to handle talking
to peers that specify one but not the other.

This is particularly important for option_anchor_outputs which
assumes option_static_remotekey.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-08-14 11:51:14 +09:30
Rusty Russell
93d04d08d0 wire: update to latest version of the spec.
The main change here is that the previously-optional open/accept
fields and reestablish fields are now compulsory (everyone was
including them anyway).  In fact, the open/accept is a TLV
because it was actually the same format.

For more details, see lightning-rfc/f068dd0d8dfa5ae75feedd99f269e23be4777381

Changelog-Removed: protocol: support for optioned form of reestablish messages now compulsory.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-06-23 18:49:15 +02:00
Christian Decker
59567dc04b plugin: Move feature_place enum to features.h
Better not duplicate these, we might end up mixing them.
2020-04-16 18:03:35 +09:30
Rusty Russell
a9fe1a3c08 features: add EXPERIMENTAL option_onion_messages from draft.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-04-14 12:51:18 +09:30
Rusty Russell
2f1502abf4 cleanup: make 'u8 *features' and 'struct feature_set *fset' more explicit.
It's almost always "their_features" and "our_features" respectively, so
make those names clear.

Suggested-by: @cdecker
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-04-03 13:13:21 +10:30
Rusty Russell
79f2d2bd25 common/features: add option_support_large_channel.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-04-03 13:13:21 +10:30
Rusty Russell
cf43e44378 common/features: don't use internal global.
Turns out that unnecessary: all callers can access the feature_set,
so make it much more like a normal primitive.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-04-03 13:13:21 +10:30
Rusty Russell
a7cc6d33c3 plugins: actually change global features when plugins tell us to.
This cleans up the boutique handling of features, and importantly, it
means that if a plugin says to offer a feature in init, we will now
*accept* that feature.

Changelog-Fixed: Plugins: setting an 'init' feature bit allows us to accept it from peers.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-03-31 13:36:02 +02:00
Rusty Russell
c95e58ad4b subdaemons: initialize feature routines with explicit feature_set.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-03-31 13:36:02 +02:00
Rusty Russell
afb76392e4 common/features: use bitmaps internally, have explicit init function.
This is to prepare for dynamic features, including making plugins first
class citizens at setting them.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-03-31 13:36:02 +02:00
Rusty Russell
c59327dce1 features: add support for channel_announcement features.
This will be needed for wumbo, for example.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-03-31 13:36:02 +02:00
Christian Decker
9b976da3bc features: Add featurebits_or helper to combine two featurebitstrings
We will be doing this when collecting featurebits from the plugins, so make
this a reusable function.
2020-02-11 13:53:31 +10:30
Rusty Russell
3cf8443285 Makefile: update bolt markers which have been since merged.
We tag them with specific versions when they're experimental,
but do a poor job of cleaning them up (and thus ensuring they're
checked!) afterwards.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-01-31 06:07:56 +00:00
Rusty Russell
f373cd45be Makefile: update BOLTVERSION to latest master.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-01-31 06:07:56 +00:00
Rusty Russell
ff1e1dd487 Makefile: update BOLTVERSION to flatten features.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-01-31 06:07:56 +00:00
Rusty Russell
0e4a30c635 doc: update experimental bolt version quotes.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-12-12 15:03:53 +01:00
Rusty Russell
3b37c9d426 common/features: clean up feature handling for different cases.
The spec is (RSN!) going to explicitly denote where each feature should
be presented, so create that infrastructure.

Incorporate the new proposed bolt11 features, which need this.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-11-24 23:33:17 +00:00
Rusty Russell
09cdbb70eb common: make BOLT11 use the normal feature array.
This was decided at a recent spec meeting: in particular, mpp and
var_onion_optin options will be used here.

We enhanced "features_supported" into "features_unsupported" so it
can return the first un-handlable bit number.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-11-24 23:33:17 +00:00
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
Rusty Russell
33c658ecfb gossipd: advertize all our features in node_announcement.
This preempts the acceptance of
https://github.com/lightningnetwork/lightning-rfc/pull/666 but it's
clear that feature bits are going to be distinct, so this is safe to
do anyway.

See https://github.com/lightningnetwork/lightning-rfc/pull/680

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-10-07 05:51:05 +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
895e552475 BOLT: update to master with gossip_queries_ex.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-09-22 01:17:11 +00:00
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
5203847025 common/features: if EXPERIMENTAL_FEATURES, advertise option_static_remotekey
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-09-10 16:18:25 -05:00
Rusty Russell
2e3eadbe91 common/features: expose feature bitmap low-level functions.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-09-05 23:39:05 -05:00
Rusty Russell
6901732ee0 lightningd: create --list-features-only which lists what features we support.
This allows the lightning-rfc protocol tests to automatically query what
features we support.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-08-29 09:01:48 +02:00
Rusty Russell
17edcfa24d features: don't assume we'll always only advertize optional features.
Generalize things a bit so OPTIONAL_FEATURE() and COMPULSORY_FEATURE()
work with either odd or even features, then explicitly use OPTIONAL_FEATURE
in our internal feature array.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-08-29 09:01:48 +02:00
Rusty Russell
a38131f349 EXPERIMENTAL: advertize the extended_queries feature.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-08-29 09:01:48 +02:00
Rusty Russell
6349222ea2 Spec: Update to latest BOLT, include our first global feature definition.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-08-29 09:01:48 +02:00