Commit Graph

13 Commits

Author SHA1 Message Date
Rusty Russell 3041cd5915 lightningd/channel.c: clearer functions names, better return values.
We call channel_sent_commit *before* sending (so we know if we need
to), so the name is wrong.  Similarly channel_sent_revoke_and_ack.

We can usefully have them tell is if there is outstanding work to do,
too.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-04-01 23:59:46 +10:30
Rusty Russell f83c04fdbe lightningd/channel.c: make callbacks clearly generic
Passing through 'struct peer *' was a layering violation.

Reported-by: Christian Decker <decker.christian@gmail.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-04-01 23:59:46 +10:30
Rusty Russell ada1eb5106 lightningd/channel.c: add callbacks for when HTLCs fully committed/removed.
The three cases we care about only happen on specific transitions:
1. They can no longer spend our failed HTLC: we can fail the source now.
2. They are fully committed to their new HTLC htlc: we can forward now.
3. They can no longer timeout their fulfilled HTLC: the funds are ours.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-04-01 23:59:46 +10:30
Rusty Russell 075092411e lightningd/channel: generate htlc txs and wscripts as well.
In practice, this is what we want, either to generate or check signatures.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-04-01 23:59:46 +10:30
Rusty Russell dd1a81d8bd lightningd/channel: implement channel_fail_htlc.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-04-01 23:59:46 +10:30
Rusty Russell 3a9c559dc6 lightningd/channel: quote BOLT #2 for checking expiry.
https://github.com/lightningnetwork/lightning-rfc/pull/138:

	 BOLT 2: htlc-cltv must be in blocks.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-04-01 23:59:46 +10:30
Rusty Russell 8cc7f31d44 Update wire from spec 9e0a0e893db389bfe392b2f4db8097949395fe28
Now we send genesis block in handshake.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-04-01 23:59:46 +10:30
sstone 62ccf266fa bolt 3: use our revocation basepoint when computing their revocation key 2017-03-23 13:19:34 +10:30
Rusty Russell 4bf398c4e7 status: move into lightningd/status.
It's really a lightningd-only thing, and we're about to do surgery on it.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-03-20 07:50:53 +10:30
Rusty Russell c64447a929 lightningd/derive_basepoints: hoist derivation logic.
All the daemons will use a common seed for point derivation, so drag
it out of lightningd/opening.

This also provide a nice struct wrapper to reduce argument count.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-03-07 11:37:06 +10:30
Rusty Russell 7419fde9a0 Update to new spec: differentiate channel_id and short_channel_id.
The spec 4af8e1841151f0c6e8151979d6c89d11839b2f65 uses a 32-byte 'channel-id'
field, not to be confused with the 8-byte short ID used by gossip.  Rename
appropriately, and update to the new handshake protocol.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-03-02 22:51:49 +10:30
Rusty Russell 5dc0402a44 Update to lightning-rfc to dc0b529161561c6be3ff53c5f8574b23c3305a04
Only minor changes, but I add some more spec text to
lightningd/test/run-commit_tx.c to be sure to catch if it changes
again.

One reference isn't upstream yet, so had to be commented out.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-03-02 22:51:49 +10:30
Rusty Russell 4a7418e3db channel: object to track channel state.
This object is basically the embodyment of BOLT #2.  Each HTLC already
knows its own state; this moves them between states and keeps them
consistent.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-02-21 15:15:28 +10:30