Commit Graph

20 Commits

Author SHA1 Message Date
Rusty Russell
2ddc0b696c lightningd/channel: keep old commit points.
We need this, to validate that the secret they give us matches it.

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
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
Rusty Russell
5637564cd4 lightningd/status: support daemon_conn for status_trace and status_failed.
We remove the unused status_send_fd, and rename status_send_sync (it
should only be used for that case now).

We add a status_setup_async(), and wire things internally to use that
if it's set up: status_setup() is renamed status_setup_sync().

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-03-20 07:50:53 +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
1781983be1 lightningd/opening: convert to subd.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-03-11 07:19:41 +10:30
Rusty Russell
29d6004efc bitcoin/script: update scripts to the lightningnetwork/lightning-rfc#123 version
aka "BOLT 3: Use revocation key hash rather than revocation key",
which builds on top of lightningnetwork/lightning-rfc#105 "BOLT 2,3,5:
Make htlc outputs of the commitment tx spendable with revocation key".

This affects callers, since they now need to hand us the revocation
pubkey, but commit_tx has that already anyway.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-03-07 16:16:59 +10:30
Rusty Russell
c0b4bb1387 daemon/lightningd: store more state in peer.
We need to keep more information about the peer for handing off to the
channel daemon.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-03-07 11:39:53 +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
5f07e8405a lightningd/opening: fix theoretical race.
We should start watching for the transaction before we send the
signature; we might miss it otherwise.  In practice, we only see
transactions as they enter a block, so it won't happen, but be
thorough.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-03-07 11:35:03 +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
d48f9faa19 lightningd/opening: fixes.
Now we've tested it:

1. open_channel needs to write response to REQ_FD not STATUS_FD.
2. recv_channel needs to send our next_per_commit, not echo theirs!
3. print the problematic signature if it's wrong, not our own.

Cleanups:

1. Return the message from open_channel/recv_channel for simplicity.
2. Trace signing information.
3. More tracing messages.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-02-24 16:22:56 +10:30
Rusty Russell
edc30b12ea lightningd: --dev-debugger=<subdaemon>
Or for blackbox tests --gdb1=<subdaemon> / --gdb2=<subdaemon>.

This makes the subdaemon wait as soon as it's execed, so we can attach
the debugger.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-02-24 16:22:56 +10:30
Rusty Russell
6cf8a19881 lightningd/opening: receive details for remote config acceptance, not min/max.
The requirements for accepting the remote config are more complex than
a simple min/max value, as various parameters are related.  It turns
out that with a few assumptions, we can boil this down to:

1.  The valid feerate range.
2.  The minimum effective HTLC throughput we want
3.  The a maximum delay we'll accept for us to redeem.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-02-24 16:22:56 +10:30
Rusty Russell
a8b9177e9e lightningd/opening: seed is a privkey not an sha256.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-02-24 16:22:56 +10:30
Rusty Russell
be7c7b9732 lightningd/handshake: rename WIRE_BAD_COMMAND to WIRE_HANDSHAKE_BAD_COMMAND
So it doesn't clash with opening daemon, for example.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-02-24 16:22:56 +10:30
Rusty Russell
b1403a764f lightningd/opening: use peer_failed to send PKT_ERR on problems.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-02-24 16:22:55 +10:30
Rusty Russell
5475666b7e lightningd: simple wallet support.
This allows us to add funds via the P2SH-wrapped Segwit Transactions.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-02-21 15:19:02 +10:30
Rusty Russell
065f11b42a lightningd/opening: opening daemon.
This conducts the conversation up until we have the txid to wait for
(or broadcast).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-02-21 15:15:29 +10:30