Commit Graph

73 Commits

Author SHA1 Message Date
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
4e8141aa36 features: remove INITIAL_ROUTING_SYNC.
It only had an effect if the peer didn't support option_gossip_queries, but
still, we don't want a gossip blast any more.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-09-25 04:01:56 +00:00
Rusty Russell
27790832a5 gossipd: gossip_queries_ex is not longer experimental.
The master spec has some typos which make it not parse, so I created
a PR and generated the CSV from that:

https://github.com/lightningnetwork/lightning-rfc/pull/673

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
cfebe66762 openingd: support receipt of upfront_shutdown_script.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-05-02 01:18:33 +00:00
lisa neigut
28699f0eca option_data_loss_protect: reenable by default 2019-01-21 00:48:25 +00:00
Rusty Russell
6aa511fa7a channeld: only enable option_data_loss_protect if EXPERIMENTAL_FEATURES.
We have an incompatibility with lnd it seems: I've lost channels on
reconnect with 'sync error'.  Since I never got this code to be reliable,
disable it for next release since I suspect it's our fault :(

And reenable the check which didn't work, for others to untangle.

I couldn't get option_data_loss_protect to be reliable, and I disabled
the check.  This was a mistake, I should have either spent even more
time trying to get to the bottom of this (especially, writing test
vectors for the spec and testing against other implementations).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-12-10 22:25:32 +00:00
Rusty Russell
be6322a2d3 features: add local_feature_negotiated / global_feature_negotiated helpers.
We currently generally assume the features we offer are fixed; this
makes the code clearer and handles where we offer features iff
EXPERIMENTAL_FEATURES=1

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-12-06 23:11:51 +01:00
Rusty Russell
41b0872f58 Use localfeatures and globalfeatures consistently.
That's what BOLT #1 calls them; make it easier for people to grep.

Reported-by: @niftynei
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-09-28 04:14:28 +00:00
Rusty Russell
ebaf5eaf2e channeld: send option_data_loss_protect fields.
We ignore incoming for now, but this means we advertize the option and
we send the required fields.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-08-23 14:46:22 +02:00
Rusty Russell
5cf34d6618 Remove tal_len, use tal_count() or tal_bytelen().
tal_count() is used where there's a type, even if it's char or u8, and
tal_bytelen() is going to replace tal_len() for clarity: it's only needed
where a pointer is void.

We shim tal_bytelen() for now.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-07-30 11:31:17 +02:00
Rusty Russell
3e07971582 features: define LOCAL_GOSSIP_QUERIES feature.
From BOLT #9 proposed update.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-06-06 03:25:56 +00:00
Rusty Russell
4359f46ffd features: fix features_supported() function.
1. We need to test all bits, not all bytes.
2. Both local and global features need to be supported.
3. Untested code is broken code.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-05-15 15:04:34 +02:00
Rusty Russell
149e967ba3 features: fix endian.
Closes: https://github.com/lightningnetwork/lightning-rfc/issues/424

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-05-15 15:04:34 +02:00
Rusty Russell
46cc7c281e features: more general accessor functions.
As we add more features, the current code is insufficient.

1. Keep an array of single feature bits, for easy switching on and off.
2. Create feature_offered() which checks for both compulsory and optional
   variants.
3. Invert requires_unsupported_features() and unsupported_features()
   which tend to be double-negative, all_supported_features() and
   features_supported().
4. Move single feature definition from wire/peer_wire.h to common/features.h.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2018-03-14 02:19:37 +00:00
ZmnSCPxj
83e76e3ac3 features: Move feature-handling code to a common/features.c source. 2018-01-13 11:29:42 +01:00